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Comparing libev/ev.c (file contents):
Revision 1.308 by root, Sun Jul 19 20:39:54 2009 UTC vs.
Revision 1.361 by root, Sun Oct 24 19:01:01 2010 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
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
138	# ifndef EV_USE_SIGNALFD
139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H	141	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140	# define EV_USE_SIGNALFD 1	142	# ifndef EV_USE_SIGNALFD
141	# else
142	# define EV_USE_SIGNALFD 0	143	# define EV_USE_SIGNALFD EV_FEATURE_OS
143	# endif	144	# endif
		145	# else
		146	# undef EV_USE_SIGNALFD
		147	# define EV_USE_SIGNALFD 0
144	# endif	148	# endif
145		149
		150	# if HAVE_EVENTFD
146	# ifndef EV_USE_EVENTFD	151	# ifndef EV_USE_EVENTFD
147	# if HAVE_EVENTFD
148	# define EV_USE_EVENTFD 1	152	# define EV_USE_EVENTFD EV_FEATURE_OS
149	# else
150	# define EV_USE_EVENTFD 0
151	# endif	153	# endif
		154	# else
		155	# undef EV_USE_EVENTFD
		156	# define EV_USE_EVENTFD 0
152	# endif	157	# endif
153		158
154	#endif	159	#endif
155		160
156	#include <math.h>	161	#include <math.h>
157	#include <stdlib.h>	162	#include <stdlib.h>
		163	#include <string.h>
158	#include <fcntl.h>	164	#include <fcntl.h>
159	#include <stddef.h>	165	#include <stddef.h>
160		166
161	#include <stdio.h>	167	#include <stdio.h>
162		168
163	#include <assert.h>	169	#include <assert.h>
164	#include <errno.h>	170	#include <errno.h>
165	#include <sys/types.h>	171	#include <sys/types.h>
166	#include <time.h>	172	#include <time.h>
		173	#include <limits.h>
167		174
168	#include <signal.h>	175	#include <signal.h>
169		176
170	#ifdef EV_H	177	#ifdef EV_H
171	# include EV_H	178	# include EV_H
172	#else	179	#else
173	# include "ev.h"	180	# include "ev.h"
174	#endif	181	#endif
		182
		183	EV_CPP(extern "C" {)
175		184
176	#ifndef _WIN32	185	#ifndef _WIN32
177	# include <sys/time.h>	186	# include <sys/time.h>
178	# include <sys/wait.h>	187	# include <sys/wait.h>
179	# include <unistd.h>	188	# include <unistd.h>
…		…
182	# define WIN32_LEAN_AND_MEAN	191	# define WIN32_LEAN_AND_MEAN
183	# include <windows.h>	192	# include <windows.h>
184	# ifndef EV_SELECT_IS_WINSOCKET	193	# ifndef EV_SELECT_IS_WINSOCKET
185	# define EV_SELECT_IS_WINSOCKET 1	194	# define EV_SELECT_IS_WINSOCKET 1
186	# endif	195	# endif
		196	# undef EV_AVOID_STDIO
187	#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
188		206
189	/* 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 */
190		208
191	/* try to deduce the maximum number of signals on this platform */	209	/* try to deduce the maximum number of signals on this platform */
192	#if defined (EV_NSIG)	210	#if defined (EV_NSIG)
…		…
204	#elif defined (MAXSIG)	222	#elif defined (MAXSIG)
205	# define EV_NSIG (MAXSIG+1)	223	# define EV_NSIG (MAXSIG+1)
206	#elif defined (MAX_SIG)	224	#elif defined (MAX_SIG)
207	# define EV_NSIG (MAX_SIG+1)	225	# define EV_NSIG (MAX_SIG+1)
208	#elif defined (SIGARRAYSIZE)	226	#elif defined (SIGARRAYSIZE)
209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */	227	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210	#elif defined (_sys_nsig)	228	#elif defined (_sys_nsig)
211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	229	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212	#else	230	#else
213	# error "unable to find value for NSIG, please report"	231	# error "unable to find value for NSIG, please report"
214	/* to make it compile regardless, just remove the above line */	232	/* to make it compile regardless, just remove the above line, */
		233	/* but consider reporting it, too! :) */
215	# define EV_NSIG 65	234	# define EV_NSIG 65
216	#endif	235	#endif
217		236
218	#ifndef EV_USE_CLOCK_SYSCALL	237	#ifndef EV_USE_CLOCK_SYSCALL
219	# if __linux && __GLIBC__ >= 2	238	# if __linux && __GLIBC__ >= 2
220	# define EV_USE_CLOCK_SYSCALL 1	239	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221	# else	240	# else
222	# define EV_USE_CLOCK_SYSCALL 0	241	# define EV_USE_CLOCK_SYSCALL 0
223	# endif	242	# endif
224	#endif	243	#endif
225		244
226	#ifndef EV_USE_MONOTONIC	245	#ifndef EV_USE_MONOTONIC
227	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	246	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228	# define EV_USE_MONOTONIC 1	247	# define EV_USE_MONOTONIC EV_FEATURE_OS
229	# else	248	# else
230	# define EV_USE_MONOTONIC 0	249	# define EV_USE_MONOTONIC 0
231	# endif	250	# endif
232	#endif	251	#endif
233		252
…		…
235	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	254	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236	#endif	255	#endif
237		256
238	#ifndef EV_USE_NANOSLEEP	257	#ifndef EV_USE_NANOSLEEP
239	# if _POSIX_C_SOURCE >= 199309L	258	# if _POSIX_C_SOURCE >= 199309L
240	# define EV_USE_NANOSLEEP 1	259	# define EV_USE_NANOSLEEP EV_FEATURE_OS
241	# else	260	# else
242	# define EV_USE_NANOSLEEP 0	261	# define EV_USE_NANOSLEEP 0
243	# endif	262	# endif
244	#endif	263	#endif
245		264
246	#ifndef EV_USE_SELECT	265	#ifndef EV_USE_SELECT
247	# define EV_USE_SELECT 1	266	# define EV_USE_SELECT EV_FEATURE_BACKENDS
248	#endif	267	#endif
249		268
250	#ifndef EV_USE_POLL	269	#ifndef EV_USE_POLL
251	# ifdef _WIN32	270	# ifdef _WIN32
252	# define EV_USE_POLL 0	271	# define EV_USE_POLL 0
253	# else	272	# else
254	# define EV_USE_POLL 1	273	# define EV_USE_POLL EV_FEATURE_BACKENDS
255	# endif	274	# endif
256	#endif	275	#endif
257		276
258	#ifndef EV_USE_EPOLL	277	#ifndef EV_USE_EPOLL
259	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	278	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260	# define EV_USE_EPOLL 1	279	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261	# else	280	# else
262	# define EV_USE_EPOLL 0	281	# define EV_USE_EPOLL 0
263	# endif	282	# endif
264	#endif	283	#endif
265		284
…		…
271	# define EV_USE_PORT 0	290	# define EV_USE_PORT 0
272	#endif	291	#endif
273		292
274	#ifndef EV_USE_INOTIFY	293	#ifndef EV_USE_INOTIFY
275	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	294	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276	# define EV_USE_INOTIFY 1	295	# define EV_USE_INOTIFY EV_FEATURE_OS
277	# else	296	# else
278	# define EV_USE_INOTIFY 0	297	# define EV_USE_INOTIFY 0
279	# endif	298	# endif
280	#endif	299	#endif
281		300
282	#ifndef EV_PID_HASHSIZE	301	#ifndef EV_PID_HASHSIZE
283	# if EV_MINIMAL	302	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
284	# define EV_PID_HASHSIZE 1
285	# else
286	# define EV_PID_HASHSIZE 16
287	# endif
288	#endif	303	#endif
289		304
290	#ifndef EV_INOTIFY_HASHSIZE	305	#ifndef EV_INOTIFY_HASHSIZE
291	# if EV_MINIMAL	306	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
292	# define EV_INOTIFY_HASHSIZE 1
293	# else
294	# define EV_INOTIFY_HASHSIZE 16
295	# endif
296	#endif	307	#endif
297		308
298	#ifndef EV_USE_EVENTFD	309	#ifndef EV_USE_EVENTFD
299	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	310	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300	# define EV_USE_EVENTFD 1	311	# define EV_USE_EVENTFD EV_FEATURE_OS
301	# else	312	# else
302	# define EV_USE_EVENTFD 0	313	# define EV_USE_EVENTFD 0
303	# endif	314	# endif
304	#endif	315	#endif
305		316
306	#ifndef EV_USE_SIGNALFD	317	#ifndef EV_USE_SIGNALFD
307	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))	318	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308	# define EV_USE_SIGNALFD 1	319	# define EV_USE_SIGNALFD EV_FEATURE_OS
309	# else	320	# else
310	# define EV_USE_SIGNALFD 0	321	# define EV_USE_SIGNALFD 0
311	# endif	322	# endif
312	#endif	323	#endif
313		324
…		…
316	# define EV_USE_4HEAP 1	327	# define EV_USE_4HEAP 1
317	# define EV_HEAP_CACHE_AT 1	328	# define EV_HEAP_CACHE_AT 1
318	#endif	329	#endif
319		330
320	#ifndef EV_VERIFY	331	#ifndef EV_VERIFY
321	# define EV_VERIFY !EV_MINIMAL	332	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322	#endif	333	#endif
323		334
324	#ifndef EV_USE_4HEAP	335	#ifndef EV_USE_4HEAP
325	# define EV_USE_4HEAP !EV_MINIMAL	336	# define EV_USE_4HEAP EV_FEATURE_DATA
326	#endif	337	#endif
327		338
328	#ifndef EV_HEAP_CACHE_AT	339	#ifndef EV_HEAP_CACHE_AT
329	# define EV_HEAP_CACHE_AT !EV_MINIMAL	340	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330	#endif	341	#endif
331		342
332	/* 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, */
333	/* which makes programs even slower. might work on other unices, too. */	344	/* which makes programs even slower. might work on other unices, too. */
334	#if EV_USE_CLOCK_SYSCALL	345	#if EV_USE_CLOCK_SYSCALL
…		…
343	# endif	354	# endif
344	#endif	355	#endif
345		356
346	/* 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 */
347		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
348	#ifndef CLOCK_MONOTONIC	365	#ifndef CLOCK_MONOTONIC
349	# undef EV_USE_MONOTONIC	366	# undef EV_USE_MONOTONIC
350	# define EV_USE_MONOTONIC 0	367	# define EV_USE_MONOTONIC 0
351	#endif	368	#endif
352		369
…		…
365	# include <sys/select.h>	382	# include <sys/select.h>
366	# endif	383	# endif
367	#endif	384	#endif
368		385
369	#if EV_USE_INOTIFY	386	#if EV_USE_INOTIFY
370	# include <sys/utsname.h>
371	# include <sys/statfs.h>	387	# include <sys/statfs.h>
372	# include <sys/inotify.h>	388	# include <sys/inotify.h>
373	/* 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 */
374	# ifndef IN_DONT_FOLLOW	390	# ifndef IN_DONT_FOLLOW
375	# undef EV_USE_INOTIFY	391	# undef EV_USE_INOTIFY
…		…
386	# include <stdint.h>	402	# include <stdint.h>
387	# ifndef EFD_NONBLOCK	403	# ifndef EFD_NONBLOCK
388	# define EFD_NONBLOCK O_NONBLOCK	404	# define EFD_NONBLOCK O_NONBLOCK
389	# endif	405	# endif
390	# ifndef EFD_CLOEXEC	406	# ifndef EFD_CLOEXEC
		407	# ifdef O_CLOEXEC
391	# define EFD_CLOEXEC O_CLOEXEC	408	# define EFD_CLOEXEC O_CLOEXEC
		409	# else
		410	# define EFD_CLOEXEC 02000000
		411	# endif
392	# endif	412	# endif
393	# ifdef __cplusplus	413	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
394	extern "C" {	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
395	# endif	421	# endif
396	int eventfd (unsigned int initval, int flags);	422	# ifndef SFD_CLOEXEC
397	# ifdef __cplusplus	423	# ifdef O_CLOEXEC
398	}	424	# define SFD_CLOEXEC O_CLOEXEC
		425	# else
		426	# define SFD_CLOEXEC 02000000
		427	# endif
399	# endif	428	# endif
400	#endif	429	EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
401		430
402	#if EV_USE_SIGNALFD	431	struct signalfd_siginfo
403	# include <sys/signalfd.h>	432	{
		433	uint32_t ssi_signo;
		434	char pad[128 - sizeof (uint32_t)];
		435	};
404	#endif	436	#endif
405		437
406	/**/	438	/**/
407		439
408	#if EV_VERIFY >= 3	440	#if EV_VERIFY >= 3
409	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	441	# define EV_FREQUENT_CHECK ev_verify (EV_A)
410	#else	442	#else
411	# define EV_FREQUENT_CHECK do { } while (0)	443	# define EV_FREQUENT_CHECK do { } while (0)
412	#endif	444	#endif
413		445
414	/*	446	/*
…		…
421	*/	453	*/
422	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	454	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
423		455
424	#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) */
425	#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) */
426	/*#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)
427		461
428	#if __GNUC__ >= 4	462	#if __GNUC__ >= 4
429	# define expect(expr,value) __builtin_expect ((expr),(value))	463	# define expect(expr,value) __builtin_expect ((expr),(value))
430	# define noinline __attribute__ ((noinline))	464	# define noinline __attribute__ ((noinline))
431	#else	465	#else
…		…
438		472
439	#define expect_false(expr) expect ((expr) != 0, 0)	473	#define expect_false(expr) expect ((expr) != 0, 0)
440	#define expect_true(expr) expect ((expr) != 0, 1)	474	#define expect_true(expr) expect ((expr) != 0, 1)
441	#define inline_size static inline	475	#define inline_size static inline
442		476
443	#if EV_MINIMAL	477	#if EV_FEATURE_CODE
		478	# define inline_speed static inline
		479	#else
444	# define inline_speed static noinline	480	# define inline_speed static noinline
445	#else
446	# define inline_speed static inline
447	#endif	481	#endif
448		482
449	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	483	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
450		484
451	#if EV_MINPRI == EV_MAXPRI	485	#if EV_MINPRI == EV_MAXPRI
…		…
464	#define ev_active(w) ((W)(w))->active	498	#define ev_active(w) ((W)(w))->active
465	#define ev_at(w) ((WT)(w))->at	499	#define ev_at(w) ((WT)(w))->at
466		500
467	#if EV_USE_REALTIME	501	#if EV_USE_REALTIME
468	/* 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 */
469	/* giving it a reasonably high chance of working on typical architetcures */	503	/* giving it a reasonably high chance of working on typical architectures */
470	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? */
471	#endif	505	#endif
472		506
473	#if EV_USE_MONOTONIC	507	#if EV_USE_MONOTONIC
474	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? */
475	#endif	509	#endif
476		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
477	#ifdef _WIN32	521	#ifdef _WIN32
478	# include "ev_win32.c"	522	# include "ev_win32.c"
479	#endif	523	#endif
480		524
481	/*****************************************************************************/	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
482		576
483	static void (*syserr_cb)(const char *msg);	577	static void (*syserr_cb)(const char *msg);
484		578
485	void	579	void
486	ev_set_syserr_cb (void (*cb)(const char *msg))	580	ev_set_syserr_cb (void (*cb)(const char *msg))
…		…
496		590
497	if (syserr_cb)	591	if (syserr_cb)
498	syserr_cb (msg);	592	syserr_cb (msg);
499	else	593	else
500	{	594	{
		595	#if EV_AVOID_STDIO
		596	const char *err = strerror (errno);
		597
		598	ev_printerr (msg);
		599	ev_printerr (": ");
		600	ev_printerr (err);
		601	ev_printerr ("\n");
		602	#else
501	perror (msg);	603	perror (msg);
		604	#endif
502	abort ();	605	abort ();
503	}	606	}
504	}	607	}
505		608
506	static void *	609	static void *
507	ev_realloc_emul (void *ptr, long size)	610	ev_realloc_emul (void *ptr, long size)
508	{	611	{
		612	#if __GLIBC__
		613	return realloc (ptr, size);
		614	#else
509	/* some systems, notably openbsd and darwin, fail to properly	615	/* some systems, notably openbsd and darwin, fail to properly
510	* implement realloc (x, 0) (as required by both ansi c-98 and	616	* implement realloc (x, 0) (as required by both ansi c-89 and
511	* the single unix specification, so work around them here.	617	* the single unix specification, so work around them here.
512	*/	618	*/
513		619
514	if (size)	620	if (size)
515	return realloc (ptr, size);	621	return realloc (ptr, size);
516		622
517	free (ptr);	623	free (ptr);
518	return 0;	624	return 0;
		625	#endif
519	}	626	}
520		627
521	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	628	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
522		629
523	void	630	void
…		…
531	{	638	{
532	ptr = alloc (ptr, size);	639	ptr = alloc (ptr, size);
533		640
534	if (!ptr && size)	641	if (!ptr && size)
535	{	642	{
		643	#if EV_AVOID_STDIO
		644	ev_printerr ("libev: memory allocation failed, aborting.\n");
		645	#else
536	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	646	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		647	#endif
537	abort ();	648	abort ();
538	}	649	}
539		650
540	return ptr;	651	return ptr;
541	}	652	}
…		…
557	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	668	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
558	unsigned char unused;	669	unsigned char unused;
559	#if EV_USE_EPOLL	670	#if EV_USE_EPOLL
560	unsigned int egen; /* generation counter to counter epoll bugs */	671	unsigned int egen; /* generation counter to counter epoll bugs */
561	#endif	672	#endif
562	#if EV_SELECT_IS_WINSOCKET	673	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
563	SOCKET handle;	674	SOCKET handle;
		675	#endif
		676	#if EV_USE_IOCP
		677	OVERLAPPED or, ow;
564	#endif	678	#endif
565	} ANFD;	679	} ANFD;
566		680
567	/* stores the pending event set for a given watcher */	681	/* stores the pending event set for a given watcher */
568	typedef struct	682	typedef struct
…		…
623		737
624	static int ev_default_loop_ptr;	738	static int ev_default_loop_ptr;
625		739
626	#endif	740	#endif
627		741
628	#if EV_MINIMAL < 2	742	#if EV_FEATURE_API
629	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	743	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
630	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	744	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
631	# define EV_INVOKE_PENDING invoke_cb (EV_A)	745	# define EV_INVOKE_PENDING invoke_cb (EV_A)
632	#else	746	#else
633	# define EV_RELEASE_CB (void)0	747	# define EV_RELEASE_CB (void)0
634	# define EV_ACQUIRE_CB (void)0	748	# define EV_ACQUIRE_CB (void)0
635	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	749	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
636	#endif	750	#endif
637		751
638	#define EVUNLOOP_RECURSE 0x80	752	#define EVBREAK_RECURSE 0x80
639		753
640	/*****************************************************************************/	754	/*****************************************************************************/
641		755
642	#ifndef EV_HAVE_EV_TIME	756	#ifndef EV_HAVE_EV_TIME
643	ev_tstamp	757	ev_tstamp
…		…
687	if (delay > 0.)	801	if (delay > 0.)
688	{	802	{
689	#if EV_USE_NANOSLEEP	803	#if EV_USE_NANOSLEEP
690	struct timespec ts;	804	struct timespec ts;
691		805
692	ts.tv_sec = (time_t)delay;	806	EV_TS_SET (ts, delay);
693	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
694
695	nanosleep (&ts, 0);	807	nanosleep (&ts, 0);
696	#elif defined(_WIN32)	808	#elif defined(_WIN32)
697	Sleep ((unsigned long)(delay * 1e3));	809	Sleep ((unsigned long)(delay * 1e3));
698	#else	810	#else
699	struct timeval tv;	811	struct timeval tv;
700		812
701	tv.tv_sec = (time_t)delay;
702	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
703
704	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	813	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
705	/* something not guaranteed by newer posix versions, but guaranteed */	814	/* something not guaranteed by newer posix versions, but guaranteed */
706	/* by older ones */	815	/* by older ones */
		816	EV_TV_SET (tv, delay);
707	select (0, 0, 0, 0, &tv);	817	select (0, 0, 0, 0, &tv);
708	#endif	818	#endif
709	}	819	}
710	}	820	}
711		821
712	/*****************************************************************************/	822	/*****************************************************************************/
713		823
714	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	824	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
715		825
716	/* find a suitable new size for the given array, */	826	/* find a suitable new size for the given array, */
717	/* hopefully by rounding to a ncie-to-malloc size */	827	/* hopefully by rounding to a nice-to-malloc size */
718	inline_size int	828	inline_size int
719	array_nextsize (int elem, int cur, int cnt)	829	array_nextsize (int elem, int cur, int cnt)
720	{	830	{
721	int ncur = cur + 1;	831	int ncur = cur + 1;
722		832
…		…
818	}	928	}
819		929
820	/*****************************************************************************/	930	/*****************************************************************************/
821		931
822	inline_speed void	932	inline_speed void
823	fd_event_nc (EV_P_ int fd, int revents)	933	fd_event_nocheck (EV_P_ int fd, int revents)
824	{	934	{
825	ANFD *anfd = anfds + fd;	935	ANFD *anfd = anfds + fd;
826	ev_io *w;	936	ev_io *w;
827		937
828	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	938	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
840	fd_event (EV_P_ int fd, int revents)	950	fd_event (EV_P_ int fd, int revents)
841	{	951	{
842	ANFD *anfd = anfds + fd;	952	ANFD *anfd = anfds + fd;
843		953
844	if (expect_true (!anfd->reify))	954	if (expect_true (!anfd->reify))
845	fd_event_nc (EV_A_ fd, revents);	955	fd_event_nocheck (EV_A_ fd, revents);
846	}	956	}
847		957
848	void	958	void
849	ev_feed_fd_event (EV_P_ int fd, int revents)	959	ev_feed_fd_event (EV_P_ int fd, int revents)
850	{	960	{
851	if (fd >= 0 && fd < anfdmax)	961	if (fd >= 0 && fd < anfdmax)
852	fd_event_nc (EV_A_ fd, revents);	962	fd_event_nocheck (EV_A_ fd, revents);
853	}	963	}
854		964
855	/* make sure the external fd watch events are in-sync */	965	/* make sure the external fd watch events are in-sync */
856	/* with the kernel/libev internal state */	966	/* with the kernel/libev internal state */
857	inline_size void	967	inline_size void
…		…
863	{	973	{
864	int fd = fdchanges [i];	974	int fd = fdchanges [i];
865	ANFD *anfd = anfds + fd;	975	ANFD *anfd = anfds + fd;
866	ev_io *w;	976	ev_io *w;
867		977
868	unsigned char events = 0;	978	unsigned char o_events = anfd->events;
		979	unsigned char o_reify = anfd->reify;
869		980
870	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	981	anfd->reify = 0;
871	events |= (unsigned char)w->events;
872		982
873	#if EV_SELECT_IS_WINSOCKET	983	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
874	if (events)	984	if (o_reify & EV__IOFDSET)
875	{	985	{
876	unsigned long arg;	986	unsigned long arg;
877	#ifdef EV_FD_TO_WIN32_HANDLE
878	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	987	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
879	#else
880	anfd->handle = _get_osfhandle (fd);
881	#endif
882	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	988	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
		989	printf ("oi %d %x\n", fd, anfd->handle);//D
883	}	990	}
884	#endif	991	#endif
885		992
		993	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
886	{	994	{
887	unsigned char o_events = anfd->events;
888	unsigned char o_reify = anfd->reify;
889
890	anfd->reify = 0;
891	anfd->events = events;	995	anfd->events = 0;
892		996
893	if (o_events != events || o_reify & EV__IOFDSET)	997	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
		998	anfd->events |= (unsigned char)w->events;
		999
		1000	if (o_events != anfd->events)
		1001	o_reify = EV__IOFDSET; /* actually |= */
		1002	}
		1003
		1004	if (o_reify & EV__IOFDSET)
894	backend_modify (EV_A_ fd, o_events, events);	1005	backend_modify (EV_A_ fd, o_events, anfd->events);
895	}
896	}	1006	}
897		1007
898	fdchangecnt = 0;	1008	fdchangecnt = 0;
899	}	1009	}
900		1010
…		…
924	ev_io_stop (EV_A_ w);	1034	ev_io_stop (EV_A_ w);
925	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1035	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
926	}	1036	}
927	}	1037	}
928		1038
929	/* check whether the given fd is atcually valid, for error recovery */	1039	/* check whether the given fd is actually valid, for error recovery */
930	inline_size int	1040	inline_size int
931	fd_valid (int fd)	1041	fd_valid (int fd)
932	{	1042	{
933	#ifdef _WIN32	1043	#ifdef _WIN32
934	return _get_osfhandle (fd) != -1;	1044	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
935	#else	1045	#else
936	return fcntl (fd, F_GETFD) != -1;	1046	return fcntl (fd, F_GETFD) != -1;
937	#endif	1047	#endif
938	}	1048	}
939		1049
…		…
976	anfds [fd].emask = 0;	1086	anfds [fd].emask = 0;
977	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);	1087	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
978	}	1088	}
979	}	1089	}
980		1090
		1091	/* used to prepare libev internal fd's */
		1092	/* this is not fork-safe */
		1093	inline_speed void
		1094	fd_intern (int fd)
		1095	{
		1096	#ifdef _WIN32
		1097	unsigned long arg = 1;
		1098	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1099	#else
		1100	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1101	fcntl (fd, F_SETFL, O_NONBLOCK);
		1102	#endif
		1103	}
		1104
981	/*****************************************************************************/	1105	/*****************************************************************************/
982		1106
983	/*	1107	/*
984	* the heap functions want a real array index. array index 0 uis guaranteed to not	1108	* the heap functions want a real array index. array index 0 is guaranteed to not
985	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives	1109	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
986	* the branching factor of the d-tree.	1110	* the branching factor of the d-tree.
987	*/	1111	*/
988		1112
989	/*	1113	/*
…		…
1057		1181
1058	for (;;)	1182	for (;;)
1059	{	1183	{
1060	int c = k << 1;	1184	int c = k << 1;
1061		1185
1062	if (c > N + HEAP0 - 1)	1186	if (c >= N + HEAP0)
1063	break;	1187	break;
1064		1188
1065	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1189	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1066	? 1 : 0;	1190	? 1 : 0;
1067		1191
…		…
1103		1227
1104	/* move an element suitably so it is in a correct place */	1228	/* move an element suitably so it is in a correct place */
1105	inline_size void	1229	inline_size void
1106	adjustheap (ANHE *heap, int N, int k)	1230	adjustheap (ANHE *heap, int N, int k)
1107	{	1231	{
1108	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1232	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1109	upheap (heap, k);	1233	upheap (heap, k);
1110	else	1234	else
1111	downheap (heap, N, k);	1235	downheap (heap, N, k);
1112	}	1236	}
1113		1237
…		…
1137		1261
1138	static ANSIG signals [EV_NSIG - 1];	1262	static ANSIG signals [EV_NSIG - 1];
1139		1263
1140	/*****************************************************************************/	1264	/*****************************************************************************/
1141		1265
1142	/* used to prepare libev internal fd's */	1266	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1143	/* this is not fork-safe */
1144	inline_speed void
1145	fd_intern (int fd)
1146	{
1147	#ifdef _WIN32
1148	unsigned long arg = 1;
1149	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1150	#else
1151	fcntl (fd, F_SETFD, FD_CLOEXEC);
1152	fcntl (fd, F_SETFL, O_NONBLOCK);
1153	#endif
1154	}
1155		1267
1156	static void noinline	1268	static void noinline
1157	evpipe_init (EV_P)	1269	evpipe_init (EV_P)
1158	{	1270	{
1159	if (!ev_is_active (&pipe_w))	1271	if (!ev_is_active (&pipe_w))
1160	{	1272	{
1161	#if EV_USE_EVENTFD	1273	# if EV_USE_EVENTFD
1162	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1274	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1163	if (evfd < 0 && errno == EINVAL)	1275	if (evfd < 0 && errno == EINVAL)
1164	evfd = eventfd (0, 0);	1276	evfd = eventfd (0, 0);
1165		1277
1166	if (evfd >= 0)	1278	if (evfd >= 0)
…		…
1168	evpipe [0] = -1;	1280	evpipe [0] = -1;
1169	fd_intern (evfd); /* doing it twice doesn't hurt */	1281	fd_intern (evfd); /* doing it twice doesn't hurt */
1170	ev_io_set (&pipe_w, evfd, EV_READ);	1282	ev_io_set (&pipe_w, evfd, EV_READ);
1171	}	1283	}
1172	else	1284	else
1173	#endif	1285	# endif
1174	{	1286	{
1175	while (pipe (evpipe))	1287	while (pipe (evpipe))
1176	ev_syserr ("(libev) error creating signal/async pipe");	1288	ev_syserr ("(libev) error creating signal/async pipe");
1177		1289
1178	fd_intern (evpipe [0]);	1290	fd_intern (evpipe [0]);
…		…
1189	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1301	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1190	{	1302	{
1191	if (!*flag)	1303	if (!*flag)
1192	{	1304	{
1193	int old_errno = errno; /* save errno because write might clobber it */	1305	int old_errno = errno; /* save errno because write might clobber it */
		1306	char dummy;
1194		1307
1195	*flag = 1;	1308	*flag = 1;
1196		1309
1197	#if EV_USE_EVENTFD	1310	#if EV_USE_EVENTFD
1198	if (evfd >= 0)	1311	if (evfd >= 0)
…		…
1200	uint64_t counter = 1;	1313	uint64_t counter = 1;
1201	write (evfd, &counter, sizeof (uint64_t));	1314	write (evfd, &counter, sizeof (uint64_t));
1202	}	1315	}
1203	else	1316	else
1204	#endif	1317	#endif
		1318	/* win32 people keep sending patches that change this write() to send() */
		1319	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1320	/* so when you think this write should be a send instead, please find out */
		1321	/* where your send() is from - it's definitely not the microsoft send, and */
		1322	/* tell me. thank you. */
1205	write (evpipe [1], &old_errno, 1);	1323	write (evpipe [1], &dummy, 1);
1206		1324
1207	errno = old_errno;	1325	errno = old_errno;
1208	}	1326	}
1209	}	1327	}
1210		1328
…		…
1223	}	1341	}
1224	else	1342	else
1225	#endif	1343	#endif
1226	{	1344	{
1227	char dummy;	1345	char dummy;
		1346	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1228	read (evpipe [0], &dummy, 1);	1347	read (evpipe [0], &dummy, 1);
1229	}	1348	}
1230		1349
1231	if (sig_pending)	1350	if (sig_pending)
1232	{	1351	{
…		…
1259	{	1378	{
1260	#if EV_MULTIPLICITY	1379	#if EV_MULTIPLICITY
1261	EV_P = signals [signum - 1].loop;	1380	EV_P = signals [signum - 1].loop;
1262	#endif	1381	#endif
1263		1382
1264	#if _WIN32	1383	#ifdef _WIN32
1265	signal (signum, ev_sighandler);	1384	signal (signum, ev_sighandler);
1266	#endif	1385	#endif
1267		1386
1268	signals [signum - 1].pending = 1;	1387	signals [signum - 1].pending = 1;
1269	evpipe_write (EV_A_ &sig_pending);	1388	evpipe_write (EV_A_ &sig_pending);
…		…
1311	break;	1430	break;
1312	}	1431	}
1313	}	1432	}
1314	#endif	1433	#endif
1315		1434
		1435	#endif
		1436
1316	/*****************************************************************************/	1437	/*****************************************************************************/
1317		1438
		1439	#if EV_CHILD_ENABLE
1318	static WL childs [EV_PID_HASHSIZE];	1440	static WL childs [EV_PID_HASHSIZE];
1319
1320	#ifndef _WIN32
1321		1441
1322	static ev_signal childev;	1442	static ev_signal childev;
1323		1443
1324	#ifndef WIFCONTINUED	1444	#ifndef WIFCONTINUED
1325	# define WIFCONTINUED(status) 0	1445	# define WIFCONTINUED(status) 0
…		…
1330	child_reap (EV_P_ int chain, int pid, int status)	1450	child_reap (EV_P_ int chain, int pid, int status)
1331	{	1451	{
1332	ev_child *w;	1452	ev_child *w;
1333	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1453	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1334		1454
1335	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1455	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1336	{	1456	{
1337	if ((w->pid == pid || !w->pid)	1457	if ((w->pid == pid || !w->pid)
1338	&& (!traced || (w->flags & 1)))	1458	&& (!traced || (w->flags & 1)))
1339	{	1459	{
1340	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1460	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
…		…
1365	/* make sure we are called again until all children have been reaped */	1485	/* make sure we are called again until all children have been reaped */
1366	/* we need to do it this way so that the callback gets called before we continue */	1486	/* we need to do it this way so that the callback gets called before we continue */
1367	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1487	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1368		1488
1369	child_reap (EV_A_ pid, pid, status);	1489	child_reap (EV_A_ pid, pid, status);
1370	if (EV_PID_HASHSIZE > 1)	1490	if ((EV_PID_HASHSIZE) > 1)
1371	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1491	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1372	}	1492	}
1373		1493
1374	#endif	1494	#endif
1375		1495
1376	/*****************************************************************************/	1496	/*****************************************************************************/
1377		1497
		1498	#if EV_USE_IOCP
		1499	# include "ev_iocp.c"
		1500	#endif
1378	#if EV_USE_PORT	1501	#if EV_USE_PORT
1379	# include "ev_port.c"	1502	# include "ev_port.c"
1380	#endif	1503	#endif
1381	#if EV_USE_KQUEUE	1504	#if EV_USE_KQUEUE
1382	# include "ev_kqueue.c"	1505	# include "ev_kqueue.c"
…		…
1442	#ifdef __APPLE__	1565	#ifdef __APPLE__
1443	/* only select works correctly on that "unix-certified" platform */	1566	/* only select works correctly on that "unix-certified" platform */
1444	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1567	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1445	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1568	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1446	#endif	1569	#endif
		1570	#ifdef __FreeBSD__
		1571	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1572	#endif
1447		1573
1448	return flags;	1574	return flags;
1449	}	1575	}
1450		1576
1451	unsigned int	1577	unsigned int
1452	ev_embeddable_backends (void)	1578	ev_embeddable_backends (void)
1453	{	1579	{
1454	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	1580	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1455		1581
1456	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	1582	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1457	/* please fix it and tell me how to detect the fix */	1583	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1458	flags &= ~EVBACKEND_EPOLL;	1584	flags &= ~EVBACKEND_EPOLL;
1459		1585
1460	return flags;	1586	return flags;
1461	}	1587	}
1462		1588
1463	unsigned int	1589	unsigned int
1464	ev_backend (EV_P)	1590	ev_backend (EV_P)
1465	{	1591	{
1466	return backend;	1592	return backend;
1467	}	1593	}
1468		1594
1469	#if EV_MINIMAL < 2	1595	#if EV_FEATURE_API
1470	unsigned int	1596	unsigned int
1471	ev_loop_count (EV_P)	1597	ev_iteration (EV_P)
1472	{	1598	{
1473	return loop_count;	1599	return loop_count;
1474	}	1600	}
1475		1601
1476	unsigned int	1602	unsigned int
1477	ev_loop_depth (EV_P)	1603	ev_depth (EV_P)
1478	{	1604	{
1479	return loop_depth;	1605	return loop_depth;
1480	}	1606	}
1481		1607
1482	void	1608	void
…		…
1554		1680
1555	ev_rt_now = ev_time ();	1681	ev_rt_now = ev_time ();
1556	mn_now = get_clock ();	1682	mn_now = get_clock ();
1557	now_floor = mn_now;	1683	now_floor = mn_now;
1558	rtmn_diff = ev_rt_now - mn_now;	1684	rtmn_diff = ev_rt_now - mn_now;
1559	#if EV_MINIMAL < 2	1685	#if EV_FEATURE_API
1560	invoke_cb = ev_invoke_pending;	1686	invoke_cb = ev_invoke_pending;
1561	#endif	1687	#endif
1562		1688
1563	io_blocktime = 0.;	1689	io_blocktime = 0.;
1564	timeout_blocktime = 0.;	1690	timeout_blocktime = 0.;
…		…
1570	#endif	1696	#endif
1571	#if EV_USE_INOTIFY	1697	#if EV_USE_INOTIFY
1572	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1698	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1573	#endif	1699	#endif
1574	#if EV_USE_SIGNALFD	1700	#if EV_USE_SIGNALFD
1575	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;	1701	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1576	#endif	1702	#endif
1577		1703
1578	if (!(flags & 0x0000ffffU))	1704	if (!(flags & 0x0000ffffU))
1579	flags |= ev_recommended_backends ();	1705	flags |= ev_recommended_backends ();
1580		1706
		1707	#if EV_USE_IOCP
		1708	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		1709	#endif
1581	#if EV_USE_PORT	1710	#if EV_USE_PORT
1582	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1711	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1583	#endif	1712	#endif
1584	#if EV_USE_KQUEUE	1713	#if EV_USE_KQUEUE
1585	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1714	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1594	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1723	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1595	#endif	1724	#endif
1596		1725
1597	ev_prepare_init (&pending_w, pendingcb);	1726	ev_prepare_init (&pending_w, pendingcb);
1598		1727
		1728	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1599	ev_init (&pipe_w, pipecb);	1729	ev_init (&pipe_w, pipecb);
1600	ev_set_priority (&pipe_w, EV_MAXPRI);	1730	ev_set_priority (&pipe_w, EV_MAXPRI);
		1731	#endif
1601	}	1732	}
1602	}	1733	}
1603		1734
1604	/* free up a loop structure */	1735	/* free up a loop structure */
1605	static void noinline	1736	void
1606	loop_destroy (EV_P)	1737	ev_loop_destroy (EV_P)
1607	{	1738	{
1608	int i;	1739	int i;
		1740
		1741	#if EV_CLEANUP_ENABLE
		1742	/* queue cleanup watchers (and execute them) */
		1743	if (expect_false (cleanupcnt))
		1744	{
		1745	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
		1746	EV_INVOKE_PENDING;
		1747	}
		1748	#endif
		1749
		1750	#if EV_CHILD_ENABLE
		1751	if (ev_is_active (&childev))
		1752	{
		1753	ev_ref (EV_A); /* child watcher */
		1754	ev_signal_stop (EV_A_ &childev);
		1755	}
		1756	#endif
1609		1757
1610	if (ev_is_active (&pipe_w))	1758	if (ev_is_active (&pipe_w))
1611	{	1759	{
1612	/*ev_ref (EV_A);*/	1760	/*ev_ref (EV_A);*/
1613	/*ev_io_stop (EV_A_ &pipe_w);*/	1761	/*ev_io_stop (EV_A_ &pipe_w);*/
…		…
1617	close (evfd);	1765	close (evfd);
1618	#endif	1766	#endif
1619		1767
1620	if (evpipe [0] >= 0)	1768	if (evpipe [0] >= 0)
1621	{	1769	{
1622	close (evpipe [0]);	1770	EV_WIN32_CLOSE_FD (evpipe [0]);
1623	close (evpipe [1]);	1771	EV_WIN32_CLOSE_FD (evpipe [1]);
1624	}	1772	}
1625	}	1773	}
1626		1774
1627	#if EV_USE_SIGNALFD	1775	#if EV_USE_SIGNALFD
1628	if (ev_is_active (&sigfd_w))	1776	if (ev_is_active (&sigfd_w))
1629	{
1630	/*ev_ref (EV_A);*/
1631	/*ev_io_stop (EV_A_ &sigfd_w);*/
1632
1633	close (sigfd);	1777	close (sigfd);
1634	}
1635	#endif	1778	#endif
1636		1779
1637	#if EV_USE_INOTIFY	1780	#if EV_USE_INOTIFY
1638	if (fs_fd >= 0)	1781	if (fs_fd >= 0)
1639	close (fs_fd);	1782	close (fs_fd);
1640	#endif	1783	#endif
1641		1784
1642	if (backend_fd >= 0)	1785	if (backend_fd >= 0)
1643	close (backend_fd);	1786	close (backend_fd);
1644		1787
		1788	#if EV_USE_IOCP
		1789	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		1790	#endif
1645	#if EV_USE_PORT	1791	#if EV_USE_PORT
1646	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1792	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1647	#endif	1793	#endif
1648	#if EV_USE_KQUEUE	1794	#if EV_USE_KQUEUE
1649	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	1795	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1676	array_free (periodic, EMPTY);	1822	array_free (periodic, EMPTY);
1677	#endif	1823	#endif
1678	#if EV_FORK_ENABLE	1824	#if EV_FORK_ENABLE
1679	array_free (fork, EMPTY);	1825	array_free (fork, EMPTY);
1680	#endif	1826	#endif
		1827	#if EV_CLEANUP_ENABLE
		1828	array_free (cleanup, EMPTY);
		1829	#endif
1681	array_free (prepare, EMPTY);	1830	array_free (prepare, EMPTY);
1682	array_free (check, EMPTY);	1831	array_free (check, EMPTY);
1683	#if EV_ASYNC_ENABLE	1832	#if EV_ASYNC_ENABLE
1684	array_free (async, EMPTY);	1833	array_free (async, EMPTY);
1685	#endif	1834	#endif
1686		1835
1687	backend = 0;	1836	backend = 0;
		1837
		1838	#if EV_MULTIPLICITY
		1839	if (ev_is_default_loop (EV_A))
		1840	#endif
		1841	ev_default_loop_ptr = 0;
		1842	#if EV_MULTIPLICITY
		1843	else
		1844	ev_free (EV_A);
		1845	#endif
1688	}	1846	}
1689		1847
1690	#if EV_USE_INOTIFY	1848	#if EV_USE_INOTIFY
1691	inline_size void infy_fork (EV_P);	1849	inline_size void infy_fork (EV_P);
1692	#endif	1850	#endif
…		…
1724	close (evfd);	1882	close (evfd);
1725	#endif	1883	#endif
1726		1884
1727	if (evpipe [0] >= 0)	1885	if (evpipe [0] >= 0)
1728	{	1886	{
1729	close (evpipe [0]);	1887	EV_WIN32_CLOSE_FD (evpipe [0]);
1730	close (evpipe [1]);	1888	EV_WIN32_CLOSE_FD (evpipe [1]);
1731	}	1889	}
1732		1890
		1891	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1733	evpipe_init (EV_A);	1892	evpipe_init (EV_A);
1734	/* now iterate over everything, in case we missed something */	1893	/* now iterate over everything, in case we missed something */
1735	pipecb (EV_A_ &pipe_w, EV_READ);	1894	pipecb (EV_A_ &pipe_w, EV_READ);
		1895	#endif
1736	}	1896	}
1737		1897
1738	postfork = 0;	1898	postfork = 0;
1739	}	1899	}
1740		1900
…		…
1749	loop_init (EV_A_ flags);	1909	loop_init (EV_A_ flags);
1750		1910
1751	if (ev_backend (EV_A))	1911	if (ev_backend (EV_A))
1752	return EV_A;	1912	return EV_A;
1753		1913
		1914	ev_free (EV_A);
1754	return 0;	1915	return 0;
1755	}	1916	}
1756		1917
1757	void
1758	ev_loop_destroy (EV_P)
1759	{
1760	loop_destroy (EV_A);
1761	ev_free (loop);
1762	}
1763
1764	void
1765	ev_loop_fork (EV_P)
1766	{
1767	postfork = 1; /* must be in line with ev_default_fork */
1768	}
1769	#endif /* multiplicity */	1918	#endif /* multiplicity */
1770		1919
1771	#if EV_VERIFY	1920	#if EV_VERIFY
1772	static void noinline	1921	static void noinline
1773	verify_watcher (EV_P_ W w)	1922	verify_watcher (EV_P_ W w)
…		…
1802	verify_watcher (EV_A_ ws [cnt]);	1951	verify_watcher (EV_A_ ws [cnt]);
1803	}	1952	}
1804	}	1953	}
1805	#endif	1954	#endif
1806		1955
1807	#if EV_MINIMAL < 2	1956	#if EV_FEATURE_API
1808	void	1957	void
1809	ev_loop_verify (EV_P)	1958	ev_verify (EV_P)
1810	{	1959	{
1811	#if EV_VERIFY	1960	#if EV_VERIFY
1812	int i;	1961	int i;
1813	WL w;	1962	WL w;
1814		1963
…		…
1848	#if EV_FORK_ENABLE	1997	#if EV_FORK_ENABLE
1849	assert (forkmax >= forkcnt);	1998	assert (forkmax >= forkcnt);
1850	array_verify (EV_A_ (W *)forks, forkcnt);	1999	array_verify (EV_A_ (W *)forks, forkcnt);
1851	#endif	2000	#endif
1852		2001
		2002	#if EV_CLEANUP_ENABLE
		2003	assert (cleanupmax >= cleanupcnt);
		2004	array_verify (EV_A_ (W *)cleanups, cleanupcnt);
		2005	#endif
		2006
1853	#if EV_ASYNC_ENABLE	2007	#if EV_ASYNC_ENABLE
1854	assert (asyncmax >= asynccnt);	2008	assert (asyncmax >= asynccnt);
1855	array_verify (EV_A_ (W *)asyncs, asynccnt);	2009	array_verify (EV_A_ (W *)asyncs, asynccnt);
1856	#endif	2010	#endif
1857		2011
		2012	#if EV_PREPARE_ENABLE
1858	assert (preparemax >= preparecnt);	2013	assert (preparemax >= preparecnt);
1859	array_verify (EV_A_ (W *)prepares, preparecnt);	2014	array_verify (EV_A_ (W *)prepares, preparecnt);
		2015	#endif
1860		2016
		2017	#if EV_CHECK_ENABLE
1861	assert (checkmax >= checkcnt);	2018	assert (checkmax >= checkcnt);
1862	array_verify (EV_A_ (W *)checks, checkcnt);	2019	array_verify (EV_A_ (W *)checks, checkcnt);
		2020	#endif
1863		2021
1864	# if 0	2022	# if 0
		2023	#if EV_CHILD_ENABLE
1865	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	2024	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1866	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	2025	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		2026	#endif
1867	# endif	2027	# endif
1868	#endif	2028	#endif
1869	}	2029	}
1870	#endif	2030	#endif
1871		2031
1872	#if EV_MULTIPLICITY	2032	#if EV_MULTIPLICITY
1873	struct ev_loop *	2033	struct ev_loop *
1874	ev_default_loop_init (unsigned int flags)
1875	#else	2034	#else
1876	int	2035	int
		2036	#endif
1877	ev_default_loop (unsigned int flags)	2037	ev_default_loop (unsigned int flags)
1878	#endif
1879	{	2038	{
1880	if (!ev_default_loop_ptr)	2039	if (!ev_default_loop_ptr)
1881	{	2040	{
1882	#if EV_MULTIPLICITY	2041	#if EV_MULTIPLICITY
1883	EV_P = ev_default_loop_ptr = &default_loop_struct;	2042	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
1887		2046
1888	loop_init (EV_A_ flags);	2047	loop_init (EV_A_ flags);
1889		2048
1890	if (ev_backend (EV_A))	2049	if (ev_backend (EV_A))
1891	{	2050	{
1892	#ifndef _WIN32	2051	#if EV_CHILD_ENABLE
1893	ev_signal_init (&childev, childcb, SIGCHLD);	2052	ev_signal_init (&childev, childcb, SIGCHLD);
1894	ev_set_priority (&childev, EV_MAXPRI);	2053	ev_set_priority (&childev, EV_MAXPRI);
1895	ev_signal_start (EV_A_ &childev);	2054	ev_signal_start (EV_A_ &childev);
1896	ev_unref (EV_A); /* child watcher should not keep loop alive */	2055	ev_unref (EV_A); /* child watcher should not keep loop alive */
1897	#endif	2056	#endif
…		…
1902		2061
1903	return ev_default_loop_ptr;	2062	return ev_default_loop_ptr;
1904	}	2063	}
1905		2064
1906	void	2065	void
1907	ev_default_destroy (void)	2066	ev_loop_fork (EV_P)
1908	{	2067	{
1909	#if EV_MULTIPLICITY
1910	EV_P = ev_default_loop_ptr;
1911	#endif
1912
1913	ev_default_loop_ptr = 0;
1914
1915	#ifndef _WIN32
1916	ev_ref (EV_A); /* child watcher */
1917	ev_signal_stop (EV_A_ &childev);
1918	#endif
1919
1920	loop_destroy (EV_A);
1921	}
1922
1923	void
1924	ev_default_fork (void)
1925	{
1926	#if EV_MULTIPLICITY
1927	EV_P = ev_default_loop_ptr;
1928	#endif
1929
1930	postfork = 1; /* must be in line with ev_loop_fork */	2068	postfork = 1; /* must be in line with ev_default_fork */
1931	}	2069	}
1932		2070
1933	/*****************************************************************************/	2071	/*****************************************************************************/
1934		2072
1935	void	2073	void
…		…
2026	EV_FREQUENT_CHECK;	2164	EV_FREQUENT_CHECK;
2027	feed_reverse (EV_A_ (W)w);	2165	feed_reverse (EV_A_ (W)w);
2028	}	2166	}
2029	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2167	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2030		2168
2031	feed_reverse_done (EV_A_ EV_TIMEOUT);	2169	feed_reverse_done (EV_A_ EV_TIMER);
2032	}	2170	}
2033	}	2171	}
2034		2172
2035	#if EV_PERIODIC_ENABLE	2173	#if EV_PERIODIC_ENABLE
2036	/* make periodics pending */	2174	/* make periodics pending */
…		…
2089	feed_reverse_done (EV_A_ EV_PERIODIC);	2227	feed_reverse_done (EV_A_ EV_PERIODIC);
2090	}	2228	}
2091	}	2229	}
2092		2230
2093	/* simply recalculate all periodics */	2231	/* simply recalculate all periodics */
2094	/* TODO: maybe ensure that at leats one event happens when jumping forward? */	2232	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2095	static void noinline	2233	static void noinline
2096	periodics_reschedule (EV_P)	2234	periodics_reschedule (EV_P)
2097	{	2235	{
2098	int i;	2236	int i;
2099		2237
…		…
2127	ANHE_at_cache (*he);	2265	ANHE_at_cache (*he);
2128	}	2266	}
2129	}	2267	}
2130		2268
2131	/* fetch new monotonic and realtime times from the kernel */	2269	/* fetch new monotonic and realtime times from the kernel */
2132	/* also detetc if there was a timejump, and act accordingly */	2270	/* also detect if there was a timejump, and act accordingly */
2133	inline_speed void	2271	inline_speed void
2134	time_update (EV_P_ ev_tstamp max_block)	2272	time_update (EV_P_ ev_tstamp max_block)
2135	{	2273	{
2136	#if EV_USE_MONOTONIC	2274	#if EV_USE_MONOTONIC
2137	if (expect_true (have_monotonic))	2275	if (expect_true (have_monotonic))
…		…
2195	mn_now = ev_rt_now;	2333	mn_now = ev_rt_now;
2196	}	2334	}
2197	}	2335	}
2198		2336
2199	void	2337	void
2200	ev_loop (EV_P_ int flags)	2338	ev_run (EV_P_ int flags)
2201	{	2339	{
2202	#if EV_MINIMAL < 2	2340	#if EV_FEATURE_API
2203	++loop_depth;	2341	++loop_depth;
2204	#endif	2342	#endif
2205		2343
2206	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2344	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2207		2345
2208	loop_done = EVUNLOOP_CANCEL;	2346	loop_done = EVBREAK_CANCEL;
2209		2347
2210	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2348	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2211		2349
2212	do	2350	do
2213	{	2351	{
2214	#if EV_VERIFY >= 2	2352	#if EV_VERIFY >= 2
2215	ev_loop_verify (EV_A);	2353	ev_verify (EV_A);
2216	#endif	2354	#endif
2217		2355
2218	#ifndef _WIN32	2356	#ifndef _WIN32
2219	if (expect_false (curpid)) /* penalise the forking check even more */	2357	if (expect_false (curpid)) /* penalise the forking check even more */
2220	if (expect_false (getpid () != curpid))	2358	if (expect_false (getpid () != curpid))
…		…
2232	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2370	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2233	EV_INVOKE_PENDING;	2371	EV_INVOKE_PENDING;
2234	}	2372	}
2235	#endif	2373	#endif
2236		2374
		2375	#if EV_PREPARE_ENABLE
2237	/* queue prepare watchers (and execute them) */	2376	/* queue prepare watchers (and execute them) */
2238	if (expect_false (preparecnt))	2377	if (expect_false (preparecnt))
2239	{	2378	{
2240	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2379	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2241	EV_INVOKE_PENDING;	2380	EV_INVOKE_PENDING;
2242	}	2381	}
		2382	#endif
2243		2383
2244	if (expect_false (loop_done))	2384	if (expect_false (loop_done))
2245	break;	2385	break;
2246		2386
2247	/* we might have forked, so reify kernel state if necessary */	2387	/* we might have forked, so reify kernel state if necessary */
…		…
2254	/* calculate blocking time */	2394	/* calculate blocking time */
2255	{	2395	{
2256	ev_tstamp waittime = 0.;	2396	ev_tstamp waittime = 0.;
2257	ev_tstamp sleeptime = 0.;	2397	ev_tstamp sleeptime = 0.;
2258		2398
		2399	/* remember old timestamp for io_blocktime calculation */
		2400	ev_tstamp prev_mn_now = mn_now;
		2401
		2402	/* update time to cancel out callback processing overhead */
		2403	time_update (EV_A_ 1e100);
		2404
2259	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2405	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2260	{	2406	{
2261	/* remember old timestamp for io_blocktime calculation */
2262	ev_tstamp prev_mn_now = mn_now;
2263
2264	/* update time to cancel out callback processing overhead */
2265	time_update (EV_A_ 1e100);
2266
2267	waittime = MAX_BLOCKTIME;	2407	waittime = MAX_BLOCKTIME;
2268		2408
2269	if (timercnt)	2409	if (timercnt)
2270	{	2410	{
2271	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2411	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
…		…
2298	waittime -= sleeptime;	2438	waittime -= sleeptime;
2299	}	2439	}
2300	}	2440	}
2301	}	2441	}
2302		2442
2303	#if EV_MINIMAL < 2	2443	#if EV_FEATURE_API
2304	++loop_count;	2444	++loop_count;
2305	#endif	2445	#endif
2306	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2446	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2307	backend_poll (EV_A_ waittime);	2447	backend_poll (EV_A_ waittime);
2308	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2448	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2309		2449
2310	/* update ev_rt_now, do magic */	2450	/* update ev_rt_now, do magic */
2311	time_update (EV_A_ waittime + sleeptime);	2451	time_update (EV_A_ waittime + sleeptime);
2312	}	2452	}
2313		2453
…		…
2320	#if EV_IDLE_ENABLE	2460	#if EV_IDLE_ENABLE
2321	/* queue idle watchers unless other events are pending */	2461	/* queue idle watchers unless other events are pending */
2322	idle_reify (EV_A);	2462	idle_reify (EV_A);
2323	#endif	2463	#endif
2324		2464
		2465	#if EV_CHECK_ENABLE
2325	/* queue check watchers, to be executed first */	2466	/* queue check watchers, to be executed first */
2326	if (expect_false (checkcnt))	2467	if (expect_false (checkcnt))
2327	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2468	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2469	#endif
2328		2470
2329	EV_INVOKE_PENDING;	2471	EV_INVOKE_PENDING;
2330	}	2472	}
2331	while (expect_true (	2473	while (expect_true (
2332	activecnt	2474	activecnt
2333	&& !loop_done	2475	&& !loop_done
2334	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2476	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2335	));	2477	));
2336		2478
2337	if (loop_done == EVUNLOOP_ONE)	2479	if (loop_done == EVBREAK_ONE)
2338	loop_done = EVUNLOOP_CANCEL;	2480	loop_done = EVBREAK_CANCEL;
2339		2481
2340	#if EV_MINIMAL < 2	2482	#if EV_FEATURE_API
2341	--loop_depth;	2483	--loop_depth;
2342	#endif	2484	#endif
2343	}	2485	}
2344		2486
2345	void	2487	void
2346	ev_unloop (EV_P_ int how)	2488	ev_break (EV_P_ int how)
2347	{	2489	{
2348	loop_done = how;	2490	loop_done = how;
2349	}	2491	}
2350		2492
2351	void	2493	void
…		…
2471		2613
2472	if (expect_false (ev_is_active (w)))	2614	if (expect_false (ev_is_active (w)))
2473	return;	2615	return;
2474		2616
2475	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2617	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2476	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2618	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2477		2619
2478	EV_FREQUENT_CHECK;	2620	EV_FREQUENT_CHECK;
2479		2621
2480	ev_start (EV_A_ (W)w, 1);	2622	ev_start (EV_A_ (W)w, 1);
2481	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2623	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2499	EV_FREQUENT_CHECK;	2641	EV_FREQUENT_CHECK;
2500		2642
2501	wlist_del (&anfds[w->fd].head, (WL)w);	2643	wlist_del (&anfds[w->fd].head, (WL)w);
2502	ev_stop (EV_A_ (W)w);	2644	ev_stop (EV_A_ (W)w);
2503		2645
2504	fd_change (EV_A_ w->fd, 1);	2646	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2505		2647
2506	EV_FREQUENT_CHECK;	2648	EV_FREQUENT_CHECK;
2507	}	2649	}
2508		2650
2509	void noinline	2651	void noinline
…		…
2551	timers [active] = timers [timercnt + HEAP0];	2693	timers [active] = timers [timercnt + HEAP0];
2552	adjustheap (timers, timercnt, active);	2694	adjustheap (timers, timercnt, active);
2553	}	2695	}
2554	}	2696	}
2555		2697
2556	EV_FREQUENT_CHECK;
2557
2558	ev_at (w) -= mn_now;	2698	ev_at (w) -= mn_now;
2559		2699
2560	ev_stop (EV_A_ (W)w);	2700	ev_stop (EV_A_ (W)w);
		2701
		2702	EV_FREQUENT_CHECK;
2561	}	2703	}
2562		2704
2563	void noinline	2705	void noinline
2564	ev_timer_again (EV_P_ ev_timer *w)	2706	ev_timer_again (EV_P_ ev_timer *w)
2565	{	2707	{
…		…
2644	periodics [active] = periodics [periodiccnt + HEAP0];	2786	periodics [active] = periodics [periodiccnt + HEAP0];
2645	adjustheap (periodics, periodiccnt, active);	2787	adjustheap (periodics, periodiccnt, active);
2646	}	2788	}
2647	}	2789	}
2648		2790
2649	EV_FREQUENT_CHECK;
2650
2651	ev_stop (EV_A_ (W)w);	2791	ev_stop (EV_A_ (W)w);
		2792
		2793	EV_FREQUENT_CHECK;
2652	}	2794	}
2653		2795
2654	void noinline	2796	void noinline
2655	ev_periodic_again (EV_P_ ev_periodic *w)	2797	ev_periodic_again (EV_P_ ev_periodic *w)
2656	{	2798	{
…		…
2661	#endif	2803	#endif
2662		2804
2663	#ifndef SA_RESTART	2805	#ifndef SA_RESTART
2664	# define SA_RESTART 0	2806	# define SA_RESTART 0
2665	#endif	2807	#endif
		2808
		2809	#if EV_SIGNAL_ENABLE
2666		2810
2667	void noinline	2811	void noinline
2668	ev_signal_start (EV_P_ ev_signal *w)	2812	ev_signal_start (EV_P_ ev_signal *w)
2669	{	2813	{
2670	if (expect_false (ev_is_active (w)))	2814	if (expect_false (ev_is_active (w)))
…		…
2717	if (!((WL)w)->next)	2861	if (!((WL)w)->next)
2718	# if EV_USE_SIGNALFD	2862	# if EV_USE_SIGNALFD
2719	if (sigfd < 0) /*TODO*/	2863	if (sigfd < 0) /*TODO*/
2720	# endif	2864	# endif
2721	{	2865	{
2722	# if _WIN32	2866	# ifdef _WIN32
		2867	evpipe_init (EV_A);
		2868
2723	signal (w->signum, ev_sighandler);	2869	signal (w->signum, ev_sighandler);
2724	# else	2870	# else
2725	struct sigaction sa;	2871	struct sigaction sa;
2726		2872
2727	evpipe_init (EV_A);	2873	evpipe_init (EV_A);
…		…
2758	signals [w->signum - 1].loop = 0; /* unattach from signal */	2904	signals [w->signum - 1].loop = 0; /* unattach from signal */
2759	#endif	2905	#endif
2760	#if EV_USE_SIGNALFD	2906	#if EV_USE_SIGNALFD
2761	if (sigfd >= 0)	2907	if (sigfd >= 0)
2762	{	2908	{
2763	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2909	sigset_t ss;
		2910
		2911	sigemptyset (&ss);
		2912	sigaddset (&ss, w->signum);
2764	sigdelset (&sigfd_set, w->signum);	2913	sigdelset (&sigfd_set, w->signum);
		2914
2765	signalfd (sigfd, &sigfd_set, 0);	2915	signalfd (sigfd, &sigfd_set, 0);
2766	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2916	sigprocmask (SIG_UNBLOCK, &ss, 0);
2767	/*TODO: maybe unblock signal? */
2768	}	2917	}
2769	else	2918	else
2770	#endif	2919	#endif
2771	signal (w->signum, SIG_DFL);	2920	signal (w->signum, SIG_DFL);
2772	}	2921	}
2773		2922
2774	EV_FREQUENT_CHECK;	2923	EV_FREQUENT_CHECK;
2775	}	2924	}
2776		2925
		2926	#endif
		2927
		2928	#if EV_CHILD_ENABLE
		2929
2777	void	2930	void
2778	ev_child_start (EV_P_ ev_child *w)	2931	ev_child_start (EV_P_ ev_child *w)
2779	{	2932	{
2780	#if EV_MULTIPLICITY	2933	#if EV_MULTIPLICITY
2781	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2934	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
…		…
2784	return;	2937	return;
2785		2938
2786	EV_FREQUENT_CHECK;	2939	EV_FREQUENT_CHECK;
2787		2940
2788	ev_start (EV_A_ (W)w, 1);	2941	ev_start (EV_A_ (W)w, 1);
2789	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2942	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2790		2943
2791	EV_FREQUENT_CHECK;	2944	EV_FREQUENT_CHECK;
2792	}	2945	}
2793		2946
2794	void	2947	void
…		…
2798	if (expect_false (!ev_is_active (w)))	2951	if (expect_false (!ev_is_active (w)))
2799	return;	2952	return;
2800		2953
2801	EV_FREQUENT_CHECK;	2954	EV_FREQUENT_CHECK;
2802		2955
2803	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2956	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2804	ev_stop (EV_A_ (W)w);	2957	ev_stop (EV_A_ (W)w);
2805		2958
2806	EV_FREQUENT_CHECK;	2959	EV_FREQUENT_CHECK;
2807	}	2960	}
		2961
		2962	#endif
2808		2963
2809	#if EV_STAT_ENABLE	2964	#if EV_STAT_ENABLE
2810		2965
2811	# ifdef _WIN32	2966	# ifdef _WIN32
2812	# undef lstat	2967	# undef lstat
…		…
2818	#define MIN_STAT_INTERVAL 0.1074891	2973	#define MIN_STAT_INTERVAL 0.1074891
2819		2974
2820	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2975	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2821		2976
2822	#if EV_USE_INOTIFY	2977	#if EV_USE_INOTIFY
2823	# define EV_INOTIFY_BUFSIZE 8192	2978
		2979	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2980	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2824		2981
2825	static void noinline	2982	static void noinline
2826	infy_add (EV_P_ ev_stat *w)	2983	infy_add (EV_P_ ev_stat *w)
2827	{	2984	{
2828	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);	2985	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2829		2986
2830	if (w->wd < 0)	2987	if (w->wd >= 0)
		2988	{
		2989	struct statfs sfs;
		2990
		2991	/* now local changes will be tracked by inotify, but remote changes won't */
		2992	/* unless the filesystem is known to be local, we therefore still poll */
		2993	/* also do poll on <2.6.25, but with normal frequency */
		2994
		2995	if (!fs_2625)
		2996	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2997	else if (!statfs (w->path, &sfs)
		2998	&& (sfs.f_type == 0x1373 /* devfs */
		2999	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3000	|| sfs.f_type == 0x3153464a /* jfs */
		3001	|| sfs.f_type == 0x52654973 /* reiser3 */
		3002	|| sfs.f_type == 0x01021994 /* tempfs */
		3003	|| sfs.f_type == 0x58465342 /* xfs */))
		3004	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		3005	else
		3006	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2831	{	3007	}
		3008	else
		3009	{
		3010	/* can't use inotify, continue to stat */
2832	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3011	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2833	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2834		3012
2835	/* monitor some parent directory for speedup hints */	3013	/* if path is not there, monitor some parent directory for speedup hints */
2836	/* note that exceeding the hardcoded path limit is not a correctness issue, */	3014	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2837	/* but an efficiency issue only */	3015	/* but an efficiency issue only */
2838	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	3016	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2839	{	3017	{
2840	char path [4096];	3018	char path [4096];
…		…
2856	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	3034	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2857	}	3035	}
2858	}	3036	}
2859		3037
2860	if (w->wd >= 0)	3038	if (w->wd >= 0)
2861	{
2862	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3039	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2863		3040
2864	/* now local changes will be tracked by inotify, but remote changes won't */	3041	/* now re-arm timer, if required */
2865	/* unless the filesystem it known to be local, we therefore still poll */	3042	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2866	/* also do poll on <2.6.25, but with normal frequency */
2867	struct statfs sfs;
2868
2869	if (fs_2625 && !statfs (w->path, &sfs))
2870	if (sfs.f_type == 0x1373 /* devfs */
2871	|| sfs.f_type == 0xEF53 /* ext2/3 */
2872	|| sfs.f_type == 0x3153464a /* jfs */
2873	|| sfs.f_type == 0x52654973 /* reiser3 */
2874	|| sfs.f_type == 0x01021994 /* tempfs */
2875	|| sfs.f_type == 0x58465342 /* xfs */)
2876	return;
2877
2878	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2879	ev_timer_again (EV_A_ &w->timer);	3043	ev_timer_again (EV_A_ &w->timer);
2880	}	3044	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2881	}	3045	}
2882		3046
2883	static void noinline	3047	static void noinline
2884	infy_del (EV_P_ ev_stat *w)	3048	infy_del (EV_P_ ev_stat *w)
2885	{	3049	{
…		…
2888		3052
2889	if (wd < 0)	3053	if (wd < 0)
2890	return;	3054	return;
2891		3055
2892	w->wd = -2;	3056	w->wd = -2;
2893	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3057	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2894	wlist_del (&fs_hash [slot].head, (WL)w);	3058	wlist_del (&fs_hash [slot].head, (WL)w);
2895		3059
2896	/* remove this watcher, if others are watching it, they will rearm */	3060	/* remove this watcher, if others are watching it, they will rearm */
2897	inotify_rm_watch (fs_fd, wd);	3061	inotify_rm_watch (fs_fd, wd);
2898	}	3062	}
…		…
2900	static void noinline	3064	static void noinline
2901	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3065	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2902	{	3066	{
2903	if (slot < 0)	3067	if (slot < 0)
2904	/* overflow, need to check for all hash slots */	3068	/* overflow, need to check for all hash slots */
2905	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3069	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2906	infy_wd (EV_A_ slot, wd, ev);	3070	infy_wd (EV_A_ slot, wd, ev);
2907	else	3071	else
2908	{	3072	{
2909	WL w_;	3073	WL w_;
2910		3074
2911	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3075	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2912	{	3076	{
2913	ev_stat *w = (ev_stat *)w_;	3077	ev_stat *w = (ev_stat *)w_;
2914	w_ = w_->next; /* lets us remove this watcher and all before it */	3078	w_ = w_->next; /* lets us remove this watcher and all before it */
2915		3079
2916	if (w->wd == wd || wd == -1)	3080	if (w->wd == wd || wd == -1)
2917	{	3081	{
2918	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3082	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2919	{	3083	{
2920	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3084	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2921	w->wd = -1;	3085	w->wd = -1;
2922	infy_add (EV_A_ w); /* re-add, no matter what */	3086	infy_add (EV_A_ w); /* re-add, no matter what */
2923	}	3087	}
2924		3088
2925	stat_timer_cb (EV_A_ &w->timer, 0);	3089	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2930		3094
2931	static void	3095	static void
2932	infy_cb (EV_P_ ev_io *w, int revents)	3096	infy_cb (EV_P_ ev_io *w, int revents)
2933	{	3097	{
2934	char buf [EV_INOTIFY_BUFSIZE];	3098	char buf [EV_INOTIFY_BUFSIZE];
2935	struct inotify_event *ev = (struct inotify_event *)buf;
2936	int ofs;	3099	int ofs;
2937	int len = read (fs_fd, buf, sizeof (buf));	3100	int len = read (fs_fd, buf, sizeof (buf));
2938		3101
2939	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3102	for (ofs = 0; ofs < len; )
		3103	{
		3104	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2940	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3105	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3106	ofs += sizeof (struct inotify_event) + ev->len;
		3107	}
2941	}	3108	}
2942		3109
2943	inline_size void	3110	inline_size void
2944	check_2625 (EV_P)	3111	ev_check_2625 (EV_P)
2945	{	3112	{
2946	/* kernels < 2.6.25 are borked	3113	/* kernels < 2.6.25 are borked
2947	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3114	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2948	*/	3115	*/
2949	struct utsname buf;	3116	if (ev_linux_version () < 0x020619)
2950	int major, minor, micro;
2951
2952	if (uname (&buf))
2953	return;	3117	return;
2954		3118
2955	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2956	return;
2957
2958	if (major < 2
2959	|| (major == 2 && minor < 6)
2960	|| (major == 2 && minor == 6 && micro < 25))
2961	return;
2962
2963	fs_2625 = 1;	3119	fs_2625 = 1;
		3120	}
		3121
		3122	inline_size int
		3123	infy_newfd (void)
		3124	{
		3125	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3126	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3127	if (fd >= 0)
		3128	return fd;
		3129	#endif
		3130	return inotify_init ();
2964	}	3131	}
2965		3132
2966	inline_size void	3133	inline_size void
2967	infy_init (EV_P)	3134	infy_init (EV_P)
2968	{	3135	{
2969	if (fs_fd != -2)	3136	if (fs_fd != -2)
2970	return;	3137	return;
2971		3138
2972	fs_fd = -1;	3139	fs_fd = -1;
2973		3140
2974	check_2625 (EV_A);	3141	ev_check_2625 (EV_A);
2975		3142
2976	fs_fd = inotify_init ();	3143	fs_fd = infy_newfd ();
2977		3144
2978	if (fs_fd >= 0)	3145	if (fs_fd >= 0)
2979	{	3146	{
		3147	fd_intern (fs_fd);
2980	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3148	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2981	ev_set_priority (&fs_w, EV_MAXPRI);	3149	ev_set_priority (&fs_w, EV_MAXPRI);
2982	ev_io_start (EV_A_ &fs_w);	3150	ev_io_start (EV_A_ &fs_w);
		3151	ev_unref (EV_A);
2983	}	3152	}
2984	}	3153	}
2985		3154
2986	inline_size void	3155	inline_size void
2987	infy_fork (EV_P)	3156	infy_fork (EV_P)
…		…
2989	int slot;	3158	int slot;
2990		3159
2991	if (fs_fd < 0)	3160	if (fs_fd < 0)
2992	return;	3161	return;
2993		3162
		3163	ev_ref (EV_A);
		3164	ev_io_stop (EV_A_ &fs_w);
2994	close (fs_fd);	3165	close (fs_fd);
2995	fs_fd = inotify_init ();	3166	fs_fd = infy_newfd ();
2996		3167
		3168	if (fs_fd >= 0)
		3169	{
		3170	fd_intern (fs_fd);
		3171	ev_io_set (&fs_w, fs_fd, EV_READ);
		3172	ev_io_start (EV_A_ &fs_w);
		3173	ev_unref (EV_A);
		3174	}
		3175
2997	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3176	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2998	{	3177	{
2999	WL w_ = fs_hash [slot].head;	3178	WL w_ = fs_hash [slot].head;
3000	fs_hash [slot].head = 0;	3179	fs_hash [slot].head = 0;
3001		3180
3002	while (w_)	3181	while (w_)
…		…
3007	w->wd = -1;	3186	w->wd = -1;
3008		3187
3009	if (fs_fd >= 0)	3188	if (fs_fd >= 0)
3010	infy_add (EV_A_ w); /* re-add, no matter what */	3189	infy_add (EV_A_ w); /* re-add, no matter what */
3011	else	3190	else
		3191	{
		3192	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3193	if (ev_is_active (&w->timer)) ev_ref (EV_A);
3012	ev_timer_again (EV_A_ &w->timer);	3194	ev_timer_again (EV_A_ &w->timer);
		3195	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3196	}
3013	}	3197	}
3014	}	3198	}
3015	}	3199	}
3016		3200
3017	#endif	3201	#endif
…		…
3034	static void noinline	3218	static void noinline
3035	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3219	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3036	{	3220	{
3037	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3221	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3038		3222
3039	/* we copy this here each the time so that */	3223	ev_statdata prev = w->attr;
3040	/* prev has the old value when the callback gets invoked */
3041	w->prev = w->attr;
3042	ev_stat_stat (EV_A_ w);	3224	ev_stat_stat (EV_A_ w);
3043		3225
3044	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3226	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3045	if (	3227	if (
3046	w->prev.st_dev != w->attr.st_dev	3228	prev.st_dev != w->attr.st_dev
3047	|| w->prev.st_ino != w->attr.st_ino	3229	|| prev.st_ino != w->attr.st_ino
3048	|| w->prev.st_mode != w->attr.st_mode	3230	|| prev.st_mode != w->attr.st_mode
3049	|| w->prev.st_nlink != w->attr.st_nlink	3231	|| prev.st_nlink != w->attr.st_nlink
3050	|| w->prev.st_uid != w->attr.st_uid	3232	|| prev.st_uid != w->attr.st_uid
3051	|| w->prev.st_gid != w->attr.st_gid	3233	|| prev.st_gid != w->attr.st_gid
3052	|| w->prev.st_rdev != w->attr.st_rdev	3234	|| prev.st_rdev != w->attr.st_rdev
3053	|| w->prev.st_size != w->attr.st_size	3235	|| prev.st_size != w->attr.st_size
3054	|| w->prev.st_atime != w->attr.st_atime	3236	|| prev.st_atime != w->attr.st_atime
3055	|| w->prev.st_mtime != w->attr.st_mtime	3237	|| prev.st_mtime != w->attr.st_mtime
3056	|| w->prev.st_ctime != w->attr.st_ctime	3238	|| prev.st_ctime != w->attr.st_ctime
3057	) {	3239	) {
		3240	/* we only update w->prev on actual differences */
		3241	/* in case we test more often than invoke the callback, */
		3242	/* to ensure that prev is always different to attr */
		3243	w->prev = prev;
		3244
3058	#if EV_USE_INOTIFY	3245	#if EV_USE_INOTIFY
3059	if (fs_fd >= 0)	3246	if (fs_fd >= 0)
3060	{	3247	{
3061	infy_del (EV_A_ w);	3248	infy_del (EV_A_ w);
3062	infy_add (EV_A_ w);	3249	infy_add (EV_A_ w);
…		…
3087		3274
3088	if (fs_fd >= 0)	3275	if (fs_fd >= 0)
3089	infy_add (EV_A_ w);	3276	infy_add (EV_A_ w);
3090	else	3277	else
3091	#endif	3278	#endif
		3279	{
3092	ev_timer_again (EV_A_ &w->timer);	3280	ev_timer_again (EV_A_ &w->timer);
		3281	ev_unref (EV_A);
		3282	}
3093		3283
3094	ev_start (EV_A_ (W)w, 1);	3284	ev_start (EV_A_ (W)w, 1);
3095		3285
3096	EV_FREQUENT_CHECK;	3286	EV_FREQUENT_CHECK;
3097	}	3287	}
…		…
3106	EV_FREQUENT_CHECK;	3296	EV_FREQUENT_CHECK;
3107		3297
3108	#if EV_USE_INOTIFY	3298	#if EV_USE_INOTIFY
3109	infy_del (EV_A_ w);	3299	infy_del (EV_A_ w);
3110	#endif	3300	#endif
		3301
		3302	if (ev_is_active (&w->timer))
		3303	{
		3304	ev_ref (EV_A);
3111	ev_timer_stop (EV_A_ &w->timer);	3305	ev_timer_stop (EV_A_ &w->timer);
		3306	}
3112		3307
3113	ev_stop (EV_A_ (W)w);	3308	ev_stop (EV_A_ (W)w);
3114		3309
3115	EV_FREQUENT_CHECK;	3310	EV_FREQUENT_CHECK;
3116	}	3311	}
…		…
3161		3356
3162	EV_FREQUENT_CHECK;	3357	EV_FREQUENT_CHECK;
3163	}	3358	}
3164	#endif	3359	#endif
3165		3360
		3361	#if EV_PREPARE_ENABLE
3166	void	3362	void
3167	ev_prepare_start (EV_P_ ev_prepare *w)	3363	ev_prepare_start (EV_P_ ev_prepare *w)
3168	{	3364	{
3169	if (expect_false (ev_is_active (w)))	3365	if (expect_false (ev_is_active (w)))
3170	return;	3366	return;
…		…
3196		3392
3197	ev_stop (EV_A_ (W)w);	3393	ev_stop (EV_A_ (W)w);
3198		3394
3199	EV_FREQUENT_CHECK;	3395	EV_FREQUENT_CHECK;
3200	}	3396	}
		3397	#endif
3201		3398
		3399	#if EV_CHECK_ENABLE
3202	void	3400	void
3203	ev_check_start (EV_P_ ev_check *w)	3401	ev_check_start (EV_P_ ev_check *w)
3204	{	3402	{
3205	if (expect_false (ev_is_active (w)))	3403	if (expect_false (ev_is_active (w)))
3206	return;	3404	return;
…		…
3232		3430
3233	ev_stop (EV_A_ (W)w);	3431	ev_stop (EV_A_ (W)w);
3234		3432
3235	EV_FREQUENT_CHECK;	3433	EV_FREQUENT_CHECK;
3236	}	3434	}
		3435	#endif
3237		3436
3238	#if EV_EMBED_ENABLE	3437	#if EV_EMBED_ENABLE
3239	void noinline	3438	void noinline
3240	ev_embed_sweep (EV_P_ ev_embed *w)	3439	ev_embed_sweep (EV_P_ ev_embed *w)
3241	{	3440	{
3242	ev_loop (w->other, EVLOOP_NONBLOCK);	3441	ev_run (w->other, EVRUN_NOWAIT);
3243	}	3442	}
3244		3443
3245	static void	3444	static void
3246	embed_io_cb (EV_P_ ev_io *io, int revents)	3445	embed_io_cb (EV_P_ ev_io *io, int revents)
3247	{	3446	{
3248	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	3447	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3249		3448
3250	if (ev_cb (w))	3449	if (ev_cb (w))
3251	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3450	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3252	else	3451	else
3253	ev_loop (w->other, EVLOOP_NONBLOCK);	3452	ev_run (w->other, EVRUN_NOWAIT);
3254	}	3453	}
3255		3454
3256	static void	3455	static void
3257	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3456	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3258	{	3457	{
…		…
3262	EV_P = w->other;	3461	EV_P = w->other;
3263		3462
3264	while (fdchangecnt)	3463	while (fdchangecnt)
3265	{	3464	{
3266	fd_reify (EV_A);	3465	fd_reify (EV_A);
3267	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3466	ev_run (EV_A_ EVRUN_NOWAIT);
3268	}	3467	}
3269	}	3468	}
3270	}	3469	}
3271		3470
3272	static void	3471	static void
…		…
3278		3477
3279	{	3478	{
3280	EV_P = w->other;	3479	EV_P = w->other;
3281		3480
3282	ev_loop_fork (EV_A);	3481	ev_loop_fork (EV_A);
3283	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3482	ev_run (EV_A_ EVRUN_NOWAIT);
3284	}	3483	}
3285		3484
3286	ev_embed_start (EV_A_ w);	3485	ev_embed_start (EV_A_ w);
3287	}	3486	}
3288		3487
…		…
3336		3535
3337	ev_io_stop (EV_A_ &w->io);	3536	ev_io_stop (EV_A_ &w->io);
3338	ev_prepare_stop (EV_A_ &w->prepare);	3537	ev_prepare_stop (EV_A_ &w->prepare);
3339	ev_fork_stop (EV_A_ &w->fork);	3538	ev_fork_stop (EV_A_ &w->fork);
3340		3539
		3540	ev_stop (EV_A_ (W)w);
		3541
3341	EV_FREQUENT_CHECK;	3542	EV_FREQUENT_CHECK;
3342	}	3543	}
3343	#endif	3544	#endif
3344		3545
3345	#if EV_FORK_ENABLE	3546	#if EV_FORK_ENABLE
…		…
3378		3579
3379	EV_FREQUENT_CHECK;	3580	EV_FREQUENT_CHECK;
3380	}	3581	}
3381	#endif	3582	#endif
3382		3583
3383	#if EV_ASYNC_ENABLE	3584	#if EV_CLEANUP_ENABLE
3384	void	3585	void
3385	ev_async_start (EV_P_ ev_async *w)	3586	ev_cleanup_start (EV_P_ ev_cleanup *w)
3386	{	3587	{
3387	if (expect_false (ev_is_active (w)))	3588	if (expect_false (ev_is_active (w)))
3388	return;	3589	return;
		3590
		3591	EV_FREQUENT_CHECK;
		3592
		3593	ev_start (EV_A_ (W)w, ++cleanupcnt);
		3594	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
		3595	cleanups [cleanupcnt - 1] = w;
		3596
		3597	EV_FREQUENT_CHECK;
		3598	}
		3599
		3600	void
		3601	ev_cleanup_stop (EV_P_ ev_cleanup *w)
		3602	{
		3603	clear_pending (EV_A_ (W)w);
		3604	if (expect_false (!ev_is_active (w)))
		3605	return;
		3606
		3607	EV_FREQUENT_CHECK;
		3608
		3609	{
		3610	int active = ev_active (w);
		3611
		3612	cleanups [active - 1] = cleanups [--cleanupcnt];
		3613	ev_active (cleanups [active - 1]) = active;
		3614	}
		3615
		3616	ev_stop (EV_A_ (W)w);
		3617
		3618	EV_FREQUENT_CHECK;
		3619	}
		3620	#endif
		3621
		3622	#if EV_ASYNC_ENABLE
		3623	void
		3624	ev_async_start (EV_P_ ev_async *w)
		3625	{
		3626	if (expect_false (ev_is_active (w)))
		3627	return;
		3628
		3629	w->sent = 0;
3389		3630
3390	evpipe_init (EV_A);	3631	evpipe_init (EV_A);
3391		3632
3392	EV_FREQUENT_CHECK;	3633	EV_FREQUENT_CHECK;
3393		3634
…		…
3471	{	3712	{
3472	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3713	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3473		3714
3474	if (expect_false (!once))	3715	if (expect_false (!once))
3475	{	3716	{
3476	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3717	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3477	return;	3718	return;
3478	}	3719	}
3479		3720
3480	once->cb = cb;	3721	once->cb = cb;
3481	once->arg = arg;	3722	once->arg = arg;
…		…
3568	if (types & EV_ASYNC)	3809	if (types & EV_ASYNC)
3569	for (i = asynccnt; i--; )	3810	for (i = asynccnt; i--; )
3570	cb (EV_A_ EV_ASYNC, asyncs [i]);	3811	cb (EV_A_ EV_ASYNC, asyncs [i]);
3571	#endif	3812	#endif
3572		3813
		3814	#if EV_PREPARE_ENABLE
3573	if (types & EV_PREPARE)	3815	if (types & EV_PREPARE)
3574	for (i = preparecnt; i--; )	3816	for (i = preparecnt; i--; )
3575	#if EV_EMBED_ENABLE	3817	# if EV_EMBED_ENABLE
3576	if (ev_cb (prepares [i]) != embed_prepare_cb)	3818	if (ev_cb (prepares [i]) != embed_prepare_cb)
3577	#endif	3819	# endif
3578	cb (EV_A_ EV_PREPARE, prepares [i]);	3820	cb (EV_A_ EV_PREPARE, prepares [i]);
		3821	#endif
3579		3822
		3823	#if EV_CHECK_ENABLE
3580	if (types & EV_CHECK)	3824	if (types & EV_CHECK)
3581	for (i = checkcnt; i--; )	3825	for (i = checkcnt; i--; )
3582	cb (EV_A_ EV_CHECK, checks [i]);	3826	cb (EV_A_ EV_CHECK, checks [i]);
		3827	#endif
3583		3828
		3829	#if EV_SIGNAL_ENABLE
3584	if (types & EV_SIGNAL)	3830	if (types & EV_SIGNAL)
3585	for (i = 0; i < EV_NSIG - 1; ++i)	3831	for (i = 0; i < EV_NSIG - 1; ++i)
3586	for (wl = signals [i].head; wl; )	3832	for (wl = signals [i].head; wl; )
3587	{	3833	{
3588	wn = wl->next;	3834	wn = wl->next;
3589	cb (EV_A_ EV_SIGNAL, wl);	3835	cb (EV_A_ EV_SIGNAL, wl);
3590	wl = wn;	3836	wl = wn;
3591	}	3837	}
		3838	#endif
3592		3839
		3840	#if EV_CHILD_ENABLE
3593	if (types & EV_CHILD)	3841	if (types & EV_CHILD)
3594	for (i = EV_PID_HASHSIZE; i--; )	3842	for (i = (EV_PID_HASHSIZE); i--; )
3595	for (wl = childs [i]; wl; )	3843	for (wl = childs [i]; wl; )
3596	{	3844	{
3597	wn = wl->next;	3845	wn = wl->next;
3598	cb (EV_A_ EV_CHILD, wl);	3846	cb (EV_A_ EV_CHILD, wl);
3599	wl = wn;	3847	wl = wn;
3600	}	3848	}
		3849	#endif
3601	/* EV_STAT 0x00001000 /* stat data changed */	3850	/* EV_STAT 0x00001000 /* stat data changed */
3602	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3851	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3603	}	3852	}
3604	#endif	3853	#endif
3605		3854
3606	#if EV_MULTIPLICITY	3855	#if EV_MULTIPLICITY
3607	#include "ev_wrap.h"	3856	#include "ev_wrap.h"
3608	#endif	3857	#endif
3609		3858
3610	#ifdef __cplusplus	3859	EV_CPP(})
3611	}
3612	#endif
3613		3860

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