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Comparing libev/ev.c (file contents):
Revision 1.314 by root, Wed Aug 26 17:31:20 2009 UTC vs.
Revision 1.366 by root, Mon Jan 10 01:58:54 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
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__ >= 7))	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
…		…
392	# define EFD_CLOEXEC O_CLOEXEC	408	# define EFD_CLOEXEC O_CLOEXEC
393	# else	409	# else
394	# define EFD_CLOEXEC 02000000	410	# define EFD_CLOEXEC 02000000
395	# endif	411	# endif
396	# endif	412	# endif
397	# ifdef __cplusplus
398	extern "C" {
399	# endif
400	int eventfd (unsigned int initval, int flags);	413	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
401	# ifdef __cplusplus
402	}
403	# endif
404	#endif	414	#endif
405		415
406	#if EV_USE_SIGNALFD	416	#if EV_USE_SIGNALFD
407	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	417	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
408	# include <stdint.h>	418	# include <stdint.h>
…		…
414	# define SFD_CLOEXEC O_CLOEXEC	424	# define SFD_CLOEXEC O_CLOEXEC
415	# else	425	# else
416	# define SFD_CLOEXEC 02000000	426	# define SFD_CLOEXEC 02000000
417	# endif	427	# endif
418	# endif	428	# endif
419	# ifdef __cplusplus
420	extern "C" {
421	# endif
422	int signalfd (int fd, const sigset_t *mask, int flags);	429	EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
423		430
424	struct signalfd_siginfo	431	struct signalfd_siginfo
425	{	432	{
426	uint32_t ssi_signo;	433	uint32_t ssi_signo;
427	char pad[128 - sizeof (uint32_t)];	434	char pad[128 - sizeof (uint32_t)];
428	};	435	};
429	# ifdef __cplusplus
430	}
431	# endif	436	#endif
432	#endif
433
434		437
435	/**/	438	/**/
436		439
437	#if EV_VERIFY >= 3	440	#if EV_VERIFY >= 3
438	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	441	# define EV_FREQUENT_CHECK ev_verify (EV_A)
439	#else	442	#else
440	# define EV_FREQUENT_CHECK do { } while (0)	443	# define EV_FREQUENT_CHECK do { } while (0)
441	#endif	444	#endif
442		445
443	/*	446	/*
…		…
450	*/	453	*/
451	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	454	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
452		455
453	#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) */
454	#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) */
455	/*#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)
456		461
457	#if __GNUC__ >= 4	462	#if __GNUC__ >= 4
458	# define expect(expr,value) __builtin_expect ((expr),(value))	463	# define expect(expr,value) __builtin_expect ((expr),(value))
459	# define noinline __attribute__ ((noinline))	464	# define noinline __attribute__ ((noinline))
460	#else	465	#else
…		…
467		472
468	#define expect_false(expr) expect ((expr) != 0, 0)	473	#define expect_false(expr) expect ((expr) != 0, 0)
469	#define expect_true(expr) expect ((expr) != 0, 1)	474	#define expect_true(expr) expect ((expr) != 0, 1)
470	#define inline_size static inline	475	#define inline_size static inline
471		476
472	#if EV_MINIMAL	477	#if EV_FEATURE_CODE
		478	# define inline_speed static inline
		479	#else
473	# define inline_speed static noinline	480	# define inline_speed static noinline
474	#else
475	# define inline_speed static inline
476	#endif	481	#endif
477		482
478	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	483	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
479		484
480	#if EV_MINPRI == EV_MAXPRI	485	#if EV_MINPRI == EV_MAXPRI
…		…
493	#define ev_active(w) ((W)(w))->active	498	#define ev_active(w) ((W)(w))->active
494	#define ev_at(w) ((WT)(w))->at	499	#define ev_at(w) ((WT)(w))->at
495		500
496	#if EV_USE_REALTIME	501	#if EV_USE_REALTIME
497	/* 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 */
498	/* giving it a reasonably high chance of working on typical architetcures */	503	/* giving it a reasonably high chance of working on typical architectures */
499	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? */
500	#endif	505	#endif
501		506
502	#if EV_USE_MONOTONIC	507	#if EV_USE_MONOTONIC
503	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? */
…		…
505		510
506	#ifndef EV_FD_TO_WIN32_HANDLE	511	#ifndef EV_FD_TO_WIN32_HANDLE
507	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)	512	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
508	#endif	513	#endif
509	#ifndef EV_WIN32_HANDLE_TO_FD	514	#ifndef EV_WIN32_HANDLE_TO_FD
510	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)	515	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
511	#endif	516	#endif
512	#ifndef EV_WIN32_CLOSE_FD	517	#ifndef EV_WIN32_CLOSE_FD
513	# define EV_WIN32_CLOSE_FD(fd) close (fd)	518	# define EV_WIN32_CLOSE_FD(fd) close (fd)
514	#endif	519	#endif
515		520
516	#ifdef _WIN32	521	#ifdef _WIN32
517	# include "ev_win32.c"	522	# include "ev_win32.c"
518	#endif	523	#endif
519		524
520	/*****************************************************************************/	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
521		576
522	static void (*syserr_cb)(const char *msg);	577	static void (*syserr_cb)(const char *msg);
523		578
524	void	579	void
525	ev_set_syserr_cb (void (*cb)(const char *msg))	580	ev_set_syserr_cb (void (*cb)(const char *msg))
…		…
535		590
536	if (syserr_cb)	591	if (syserr_cb)
537	syserr_cb (msg);	592	syserr_cb (msg);
538	else	593	else
539	{	594	{
		595	#if EV_AVOID_STDIO
		596	ev_printerr (msg);
		597	ev_printerr (": ");
		598	ev_printerr (strerror (errno));
		599	ev_printerr ("\n");
		600	#else
540	perror (msg);	601	perror (msg);
		602	#endif
541	abort ();	603	abort ();
542	}	604	}
543	}	605	}
544		606
545	static void *	607	static void *
546	ev_realloc_emul (void *ptr, long size)	608	ev_realloc_emul (void *ptr, long size)
547	{	609	{
		610	#if __GLIBC__
		611	return realloc (ptr, size);
		612	#else
548	/* some systems, notably openbsd and darwin, fail to properly	613	/* some systems, notably openbsd and darwin, fail to properly
549	* 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
550	* the single unix specification, so work around them here.	615	* the single unix specification, so work around them here.
551	*/	616	*/
552		617
553	if (size)	618	if (size)
554	return realloc (ptr, size);	619	return realloc (ptr, size);
555		620
556	free (ptr);	621	free (ptr);
557	return 0;	622	return 0;
		623	#endif
558	}	624	}
559		625
560	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	626	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
561		627
562	void	628	void
…		…
570	{	636	{
571	ptr = alloc (ptr, size);	637	ptr = alloc (ptr, size);
572		638
573	if (!ptr && size)	639	if (!ptr && size)
574	{	640	{
		641	#if EV_AVOID_STDIO
		642	ev_printerr ("(libev) memory allocation failed, aborting.\n");
		643	#else
575	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	644	fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
		645	#endif
576	abort ();	646	abort ();
577	}	647	}
578		648
579	return ptr;	649	return ptr;
580	}	650	}
…		…
596	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 */
597	unsigned char unused;	667	unsigned char unused;
598	#if EV_USE_EPOLL	668	#if EV_USE_EPOLL
599	unsigned int egen; /* generation counter to counter epoll bugs */	669	unsigned int egen; /* generation counter to counter epoll bugs */
600	#endif	670	#endif
601	#if EV_SELECT_IS_WINSOCKET	671	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
602	SOCKET handle;	672	SOCKET handle;
		673	#endif
		674	#if EV_USE_IOCP
		675	OVERLAPPED or, ow;
603	#endif	676	#endif
604	} ANFD;	677	} ANFD;
605		678
606	/* stores the pending event set for a given watcher */	679	/* stores the pending event set for a given watcher */
607	typedef struct	680	typedef struct
…		…
662		735
663	static int ev_default_loop_ptr;	736	static int ev_default_loop_ptr;
664		737
665	#endif	738	#endif
666		739
667	#if EV_MINIMAL < 2	740	#if EV_FEATURE_API
668	# 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)
669	# 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)
670	# define EV_INVOKE_PENDING invoke_cb (EV_A)	743	# define EV_INVOKE_PENDING invoke_cb (EV_A)
671	#else	744	#else
672	# define EV_RELEASE_CB (void)0	745	# define EV_RELEASE_CB (void)0
673	# define EV_ACQUIRE_CB (void)0	746	# define EV_ACQUIRE_CB (void)0
674	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	747	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
675	#endif	748	#endif
676		749
677	#define EVUNLOOP_RECURSE 0x80	750	#define EVBREAK_RECURSE 0x80
678		751
679	/*****************************************************************************/	752	/*****************************************************************************/
680		753
681	#ifndef EV_HAVE_EV_TIME	754	#ifndef EV_HAVE_EV_TIME
682	ev_tstamp	755	ev_tstamp
…		…
726	if (delay > 0.)	799	if (delay > 0.)
727	{	800	{
728	#if EV_USE_NANOSLEEP	801	#if EV_USE_NANOSLEEP
729	struct timespec ts;	802	struct timespec ts;
730		803
731	ts.tv_sec = (time_t)delay;	804	EV_TS_SET (ts, delay);
732	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
733
734	nanosleep (&ts, 0);	805	nanosleep (&ts, 0);
735	#elif defined(_WIN32)	806	#elif defined(_WIN32)
736	Sleep ((unsigned long)(delay * 1e3));	807	Sleep ((unsigned long)(delay * 1e3));
737	#else	808	#else
738	struct timeval tv;	809	struct timeval tv;
739		810
740	tv.tv_sec = (time_t)delay;
741	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
742
743	/* 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 */
744	/* something not guaranteed by newer posix versions, but guaranteed */	812	/* something not guaranteed by newer posix versions, but guaranteed */
745	/* by older ones */	813	/* by older ones */
		814	EV_TV_SET (tv, delay);
746	select (0, 0, 0, 0, &tv);	815	select (0, 0, 0, 0, &tv);
747	#endif	816	#endif
748	}	817	}
749	}	818	}
750		819
751	/*****************************************************************************/	820	/*****************************************************************************/
752		821
753	#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 */
754		823
755	/* find a suitable new size for the given array, */	824	/* find a suitable new size for the given array, */
756	/* hopefully by rounding to a ncie-to-malloc size */	825	/* hopefully by rounding to a nice-to-malloc size */
757	inline_size int	826	inline_size int
758	array_nextsize (int elem, int cur, int cnt)	827	array_nextsize (int elem, int cur, int cnt)
759	{	828	{
760	int ncur = cur + 1;	829	int ncur = cur + 1;
761		830
…		…
857	}	926	}
858		927
859	/*****************************************************************************/	928	/*****************************************************************************/
860		929
861	inline_speed void	930	inline_speed void
862	fd_event_nc (EV_P_ int fd, int revents)	931	fd_event_nocheck (EV_P_ int fd, int revents)
863	{	932	{
864	ANFD *anfd = anfds + fd;	933	ANFD *anfd = anfds + fd;
865	ev_io *w;	934	ev_io *w;
866		935
867	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)
…		…
879	fd_event (EV_P_ int fd, int revents)	948	fd_event (EV_P_ int fd, int revents)
880	{	949	{
881	ANFD *anfd = anfds + fd;	950	ANFD *anfd = anfds + fd;
882		951
883	if (expect_true (!anfd->reify))	952	if (expect_true (!anfd->reify))
884	fd_event_nc (EV_A_ fd, revents);	953	fd_event_nocheck (EV_A_ fd, revents);
885	}	954	}
886		955
887	void	956	void
888	ev_feed_fd_event (EV_P_ int fd, int revents)	957	ev_feed_fd_event (EV_P_ int fd, int revents)
889	{	958	{
890	if (fd >= 0 && fd < anfdmax)	959	if (fd >= 0 && fd < anfdmax)
891	fd_event_nc (EV_A_ fd, revents);	960	fd_event_nocheck (EV_A_ fd, revents);
892	}	961	}
893		962
894	/* make sure the external fd watch events are in-sync */	963	/* make sure the external fd watch events are in-sync */
895	/* with the kernel/libev internal state */	964	/* with the kernel/libev internal state */
896	inline_size void	965	inline_size void
…		…
902	{	971	{
903	int fd = fdchanges [i];	972	int fd = fdchanges [i];
904	ANFD *anfd = anfds + fd;	973	ANFD *anfd = anfds + fd;
905	ev_io *w;	974	ev_io *w;
906		975
907	unsigned char events = 0;	976	unsigned char o_events = anfd->events;
		977	unsigned char o_reify = anfd->reify;
908		978
909	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	979	anfd->reify = 0;
910	events |= (unsigned char)w->events;
911		980
912	#if EV_SELECT_IS_WINSOCKET	981	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
913	if (events)	982	if (o_reify & EV__IOFDSET)
914	{	983	{
915	unsigned long arg;	984	unsigned long arg;
916	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	985	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
917	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
918	}	988	}
919	#endif	989	#endif
920		990
		991	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
921	{	992	{
922	unsigned char o_events = anfd->events;
923	unsigned char o_reify = anfd->reify;
924
925	anfd->reify = 0;
926	anfd->events = events;	993	anfd->events = 0;
927		994
928	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)
929	backend_modify (EV_A_ fd, o_events, events);	1003	backend_modify (EV_A_ fd, o_events, anfd->events);
930	}
931	}	1004	}
932		1005
933	fdchangecnt = 0;	1006	fdchangecnt = 0;
934	}	1007	}
935		1008
…		…
959	ev_io_stop (EV_A_ w);	1032	ev_io_stop (EV_A_ w);
960	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);
961	}	1034	}
962	}	1035	}
963		1036
964	/* check whether the given fd is atcually valid, for error recovery */	1037	/* check whether the given fd is actually valid, for error recovery */
965	inline_size int	1038	inline_size int
966	fd_valid (int fd)	1039	fd_valid (int fd)
967	{	1040	{
968	#ifdef _WIN32	1041	#ifdef _WIN32
969	return _get_osfhandle (fd) != -1;	1042	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
970	#else	1043	#else
971	return fcntl (fd, F_GETFD) != -1;	1044	return fcntl (fd, F_GETFD) != -1;
972	#endif	1045	#endif
973	}	1046	}
974		1047
…		…
1011	anfds [fd].emask = 0;	1084	anfds [fd].emask = 0;
1012	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);	1085	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1013	}	1086	}
1014	}	1087	}
1015		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
1016	/*****************************************************************************/	1103	/*****************************************************************************/
1017		1104
1018	/*	1105	/*
1019	* 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
1020	* 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
1021	* the branching factor of the d-tree.	1108	* the branching factor of the d-tree.
1022	*/	1109	*/
1023		1110
1024	/*	1111	/*
…		…
1172		1259
1173	static ANSIG signals [EV_NSIG - 1];	1260	static ANSIG signals [EV_NSIG - 1];
1174		1261
1175	/*****************************************************************************/	1262	/*****************************************************************************/
1176		1263
1177	/* used to prepare libev internal fd's */	1264	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1178	/* this is not fork-safe */
1179	inline_speed void
1180	fd_intern (int fd)
1181	{
1182	#ifdef _WIN32
1183	unsigned long arg = 1;
1184	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1185	#else
1186	fcntl (fd, F_SETFD, FD_CLOEXEC);
1187	fcntl (fd, F_SETFL, O_NONBLOCK);
1188	#endif
1189	}
1190		1265
1191	static void noinline	1266	static void noinline
1192	evpipe_init (EV_P)	1267	evpipe_init (EV_P)
1193	{	1268	{
1194	if (!ev_is_active (&pipe_w))	1269	if (!ev_is_active (&pipe_w))
1195	{	1270	{
1196	#if EV_USE_EVENTFD	1271	# if EV_USE_EVENTFD
1197	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1272	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1198	if (evfd < 0 && errno == EINVAL)	1273	if (evfd < 0 && errno == EINVAL)
1199	evfd = eventfd (0, 0);	1274	evfd = eventfd (0, 0);
1200		1275
1201	if (evfd >= 0)	1276	if (evfd >= 0)
…		…
1203	evpipe [0] = -1;	1278	evpipe [0] = -1;
1204	fd_intern (evfd); /* doing it twice doesn't hurt */	1279	fd_intern (evfd); /* doing it twice doesn't hurt */
1205	ev_io_set (&pipe_w, evfd, EV_READ);	1280	ev_io_set (&pipe_w, evfd, EV_READ);
1206	}	1281	}
1207	else	1282	else
1208	#endif	1283	# endif
1209	{	1284	{
1210	while (pipe (evpipe))	1285	while (pipe (evpipe))
1211	ev_syserr ("(libev) error creating signal/async pipe");	1286	ev_syserr ("(libev) error creating signal/async pipe");
1212		1287
1213	fd_intern (evpipe [0]);	1288	fd_intern (evpipe [0]);
…		…
1224	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1299	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1225	{	1300	{
1226	if (!*flag)	1301	if (!*flag)
1227	{	1302	{
1228	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;
1229		1305
1230	*flag = 1;	1306	*flag = 1;
1231		1307
1232	#if EV_USE_EVENTFD	1308	#if EV_USE_EVENTFD
1233	if (evfd >= 0)	1309	if (evfd >= 0)
…		…
1235	uint64_t counter = 1;	1311	uint64_t counter = 1;
1236	write (evfd, &counter, sizeof (uint64_t));	1312	write (evfd, &counter, sizeof (uint64_t));
1237	}	1313	}
1238	else	1314	else
1239	#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. */
1240	write (evpipe [1], &old_errno, 1);	1321	write (evpipe [1], &dummy, 1);
1241		1322
1242	errno = old_errno;	1323	errno = old_errno;
1243	}	1324	}
1244	}	1325	}
1245		1326
…		…
1258	}	1339	}
1259	else	1340	else
1260	#endif	1341	#endif
1261	{	1342	{
1262	char dummy;	1343	char dummy;
		1344	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1263	read (evpipe [0], &dummy, 1);	1345	read (evpipe [0], &dummy, 1);
1264	}	1346	}
1265		1347
1266	if (sig_pending)	1348	if (sig_pending)
1267	{	1349	{
…		…
1287	#endif	1369	#endif
1288	}	1370	}
1289		1371
1290	/*****************************************************************************/	1372	/*****************************************************************************/
1291		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
1292	static void	1388	static void
1293	ev_sighandler (int signum)	1389	ev_sighandler (int signum)
1294	{	1390	{
1295	#if EV_MULTIPLICITY
1296	EV_P = signals [signum - 1].loop;
1297	#endif
1298
1299	#if _WIN32	1391	#ifdef _WIN32
1300	signal (signum, ev_sighandler);	1392	signal (signum, ev_sighandler);
1301	#endif	1393	#endif
1302		1394
1303	signals [signum - 1].pending = 1;	1395	ev_feed_signal (signum);
1304	evpipe_write (EV_A_ &sig_pending);
1305	}	1396	}
1306		1397
1307	void noinline	1398	void noinline
1308	ev_feed_signal_event (EV_P_ int signum)	1399	ev_feed_signal_event (EV_P_ int signum)
1309	{	1400	{
…		…
1346	break;	1437	break;
1347	}	1438	}
1348	}	1439	}
1349	#endif	1440	#endif
1350		1441
		1442	#endif
		1443
1351	/*****************************************************************************/	1444	/*****************************************************************************/
1352		1445
		1446	#if EV_CHILD_ENABLE
1353	static WL childs [EV_PID_HASHSIZE];	1447	static WL childs [EV_PID_HASHSIZE];
1354
1355	#ifndef _WIN32
1356		1448
1357	static ev_signal childev;	1449	static ev_signal childev;
1358		1450
1359	#ifndef WIFCONTINUED	1451	#ifndef WIFCONTINUED
1360	# define WIFCONTINUED(status) 0	1452	# define WIFCONTINUED(status) 0
…		…
1365	child_reap (EV_P_ int chain, int pid, int status)	1457	child_reap (EV_P_ int chain, int pid, int status)
1366	{	1458	{
1367	ev_child *w;	1459	ev_child *w;
1368	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1460	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1369		1461
1370	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)
1371	{	1463	{
1372	if ((w->pid == pid || !w->pid)	1464	if ((w->pid == pid || !w->pid)
1373	&& (!traced || (w->flags & 1)))	1465	&& (!traced || (w->flags & 1)))
1374	{	1466	{
1375	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 */
…		…
1400	/* 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 */
1401	/* 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 */
1402	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1494	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1403		1495
1404	child_reap (EV_A_ pid, pid, status);	1496	child_reap (EV_A_ pid, pid, status);
1405	if (EV_PID_HASHSIZE > 1)	1497	if ((EV_PID_HASHSIZE) > 1)
1406	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 */
1407	}	1499	}
1408		1500
1409	#endif	1501	#endif
1410		1502
1411	/*****************************************************************************/	1503	/*****************************************************************************/
1412		1504
		1505	#if EV_USE_IOCP
		1506	# include "ev_iocp.c"
		1507	#endif
1413	#if EV_USE_PORT	1508	#if EV_USE_PORT
1414	# include "ev_port.c"	1509	# include "ev_port.c"
1415	#endif	1510	#endif
1416	#if EV_USE_KQUEUE	1511	#if EV_USE_KQUEUE
1417	# include "ev_kqueue.c"	1512	# include "ev_kqueue.c"
…		…
1477	#ifdef __APPLE__	1572	#ifdef __APPLE__
1478	/* only select works correctly on that "unix-certified" platform */	1573	/* only select works correctly on that "unix-certified" platform */
1479	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1574	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1480	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 */
1481	#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
1482		1580
1483	return flags;	1581	return flags;
1484	}	1582	}
1485		1583
1486	unsigned int	1584	unsigned int
1487	ev_embeddable_backends (void)	1585	ev_embeddable_backends (void)
1488	{	1586	{
1489	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	1587	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1490		1588
1491	/* 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 */
1492	/* please fix it and tell me how to detect the fix */	1590	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1493	flags &= ~EVBACKEND_EPOLL;	1591	flags &= ~EVBACKEND_EPOLL;
1494		1592
1495	return flags;	1593	return flags;
1496	}	1594	}
1497		1595
1498	unsigned int	1596	unsigned int
1499	ev_backend (EV_P)	1597	ev_backend (EV_P)
1500	{	1598	{
1501	return backend;	1599	return backend;
1502	}	1600	}
1503		1601
1504	#if EV_MINIMAL < 2	1602	#if EV_FEATURE_API
1505	unsigned int	1603	unsigned int
1506	ev_loop_count (EV_P)	1604	ev_iteration (EV_P)
1507	{	1605	{
1508	return loop_count;	1606	return loop_count;
1509	}	1607	}
1510		1608
1511	unsigned int	1609	unsigned int
1512	ev_loop_depth (EV_P)	1610	ev_depth (EV_P)
1513	{	1611	{
1514	return loop_depth;	1612	return loop_depth;
1515	}	1613	}
1516		1614
1517	void	1615	void
…		…
1554	static void noinline	1652	static void noinline
1555	loop_init (EV_P_ unsigned int flags)	1653	loop_init (EV_P_ unsigned int flags)
1556	{	1654	{
1557	if (!backend)	1655	if (!backend)
1558	{	1656	{
		1657	origflags = flags;
		1658
1559	#if EV_USE_REALTIME	1659	#if EV_USE_REALTIME
1560	if (!have_realtime)	1660	if (!have_realtime)
1561	{	1661	{
1562	struct timespec ts;	1662	struct timespec ts;
1563		1663
…		…
1589		1689
1590	ev_rt_now = ev_time ();	1690	ev_rt_now = ev_time ();
1591	mn_now = get_clock ();	1691	mn_now = get_clock ();
1592	now_floor = mn_now;	1692	now_floor = mn_now;
1593	rtmn_diff = ev_rt_now - mn_now;	1693	rtmn_diff = ev_rt_now - mn_now;
1594	#if EV_MINIMAL < 2	1694	#if EV_FEATURE_API
1595	invoke_cb = ev_invoke_pending;	1695	invoke_cb = ev_invoke_pending;
1596	#endif	1696	#endif
1597		1697
1598	io_blocktime = 0.;	1698	io_blocktime = 0.;
1599	timeout_blocktime = 0.;	1699	timeout_blocktime = 0.;
…		…
1605	#endif	1705	#endif
1606	#if EV_USE_INOTIFY	1706	#if EV_USE_INOTIFY
1607	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1707	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1608	#endif	1708	#endif
1609	#if EV_USE_SIGNALFD	1709	#if EV_USE_SIGNALFD
1610	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;	1710	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1611	#endif	1711	#endif
1612		1712
1613	if (!(flags & 0x0000ffffU))	1713	if (!(flags & EVBACKEND_MASK))
1614	flags |= ev_recommended_backends ();	1714	flags |= ev_recommended_backends ();
1615		1715
		1716	#if EV_USE_IOCP
		1717	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		1718	#endif
1616	#if EV_USE_PORT	1719	#if EV_USE_PORT
1617	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1720	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1618	#endif	1721	#endif
1619	#if EV_USE_KQUEUE	1722	#if EV_USE_KQUEUE
1620	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1723	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1629	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1732	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1630	#endif	1733	#endif
1631		1734
1632	ev_prepare_init (&pending_w, pendingcb);	1735	ev_prepare_init (&pending_w, pendingcb);
1633		1736
		1737	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1634	ev_init (&pipe_w, pipecb);	1738	ev_init (&pipe_w, pipecb);
1635	ev_set_priority (&pipe_w, EV_MAXPRI);	1739	ev_set_priority (&pipe_w, EV_MAXPRI);
		1740	#endif
1636	}	1741	}
1637	}	1742	}
1638		1743
1639	/* free up a loop structure */	1744	/* free up a loop structure */
1640	static void noinline	1745	void
1641	loop_destroy (EV_P)	1746	ev_loop_destroy (EV_P)
1642	{	1747	{
1643	int i;	1748	int i;
		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
1644		1772
1645	if (ev_is_active (&pipe_w))	1773	if (ev_is_active (&pipe_w))
1646	{	1774	{
1647	/*ev_ref (EV_A);*/	1775	/*ev_ref (EV_A);*/
1648	/*ev_io_stop (EV_A_ &pipe_w);*/	1776	/*ev_io_stop (EV_A_ &pipe_w);*/
…		…
1659	}	1787	}
1660	}	1788	}
1661		1789
1662	#if EV_USE_SIGNALFD	1790	#if EV_USE_SIGNALFD
1663	if (ev_is_active (&sigfd_w))	1791	if (ev_is_active (&sigfd_w))
1664	{
1665	/*ev_ref (EV_A);*/
1666	/*ev_io_stop (EV_A_ &sigfd_w);*/
1667
1668	close (sigfd);	1792	close (sigfd);
1669	}
1670	#endif	1793	#endif
1671		1794
1672	#if EV_USE_INOTIFY	1795	#if EV_USE_INOTIFY
1673	if (fs_fd >= 0)	1796	if (fs_fd >= 0)
1674	close (fs_fd);	1797	close (fs_fd);
1675	#endif	1798	#endif
1676		1799
1677	if (backend_fd >= 0)	1800	if (backend_fd >= 0)
1678	close (backend_fd);	1801	close (backend_fd);
1679		1802
		1803	#if EV_USE_IOCP
		1804	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		1805	#endif
1680	#if EV_USE_PORT	1806	#if EV_USE_PORT
1681	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1807	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1682	#endif	1808	#endif
1683	#if EV_USE_KQUEUE	1809	#if EV_USE_KQUEUE
1684	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	1810	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1711	array_free (periodic, EMPTY);	1837	array_free (periodic, EMPTY);
1712	#endif	1838	#endif
1713	#if EV_FORK_ENABLE	1839	#if EV_FORK_ENABLE
1714	array_free (fork, EMPTY);	1840	array_free (fork, EMPTY);
1715	#endif	1841	#endif
		1842	#if EV_CLEANUP_ENABLE
		1843	array_free (cleanup, EMPTY);
		1844	#endif
1716	array_free (prepare, EMPTY);	1845	array_free (prepare, EMPTY);
1717	array_free (check, EMPTY);	1846	array_free (check, EMPTY);
1718	#if EV_ASYNC_ENABLE	1847	#if EV_ASYNC_ENABLE
1719	array_free (async, EMPTY);	1848	array_free (async, EMPTY);
1720	#endif	1849	#endif
1721		1850
1722	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
1723	}	1861	}
1724		1862
1725	#if EV_USE_INOTIFY	1863	#if EV_USE_INOTIFY
1726	inline_size void infy_fork (EV_P);	1864	inline_size void infy_fork (EV_P);
1727	#endif	1865	#endif
…		…
1763	{	1901	{
1764	EV_WIN32_CLOSE_FD (evpipe [0]);	1902	EV_WIN32_CLOSE_FD (evpipe [0]);
1765	EV_WIN32_CLOSE_FD (evpipe [1]);	1903	EV_WIN32_CLOSE_FD (evpipe [1]);
1766	}	1904	}
1767		1905
		1906	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1768	evpipe_init (EV_A);	1907	evpipe_init (EV_A);
1769	/* now iterate over everything, in case we missed something */	1908	/* now iterate over everything, in case we missed something */
1770	pipecb (EV_A_ &pipe_w, EV_READ);	1909	pipecb (EV_A_ &pipe_w, EV_READ);
		1910	#endif
1771	}	1911	}
1772		1912
1773	postfork = 0;	1913	postfork = 0;
1774	}	1914	}
1775		1915
…		…
1784	loop_init (EV_A_ flags);	1924	loop_init (EV_A_ flags);
1785		1925
1786	if (ev_backend (EV_A))	1926	if (ev_backend (EV_A))
1787	return EV_A;	1927	return EV_A;
1788		1928
		1929	ev_free (EV_A);
1789	return 0;	1930	return 0;
1790	}	1931	}
1791		1932
1792	void
1793	ev_loop_destroy (EV_P)
1794	{
1795	loop_destroy (EV_A);
1796	ev_free (loop);
1797	}
1798
1799	void
1800	ev_loop_fork (EV_P)
1801	{
1802	postfork = 1; /* must be in line with ev_default_fork */
1803	}
1804	#endif /* multiplicity */	1933	#endif /* multiplicity */
1805		1934
1806	#if EV_VERIFY	1935	#if EV_VERIFY
1807	static void noinline	1936	static void noinline
1808	verify_watcher (EV_P_ W w)	1937	verify_watcher (EV_P_ W w)
…		…
1837	verify_watcher (EV_A_ ws [cnt]);	1966	verify_watcher (EV_A_ ws [cnt]);
1838	}	1967	}
1839	}	1968	}
1840	#endif	1969	#endif
1841		1970
1842	#if EV_MINIMAL < 2	1971	#if EV_FEATURE_API
1843	void	1972	void
1844	ev_loop_verify (EV_P)	1973	ev_verify (EV_P)
1845	{	1974	{
1846	#if EV_VERIFY	1975	#if EV_VERIFY
1847	int i;	1976	int i;
1848	WL w;	1977	WL w;
1849		1978
…		…
1883	#if EV_FORK_ENABLE	2012	#if EV_FORK_ENABLE
1884	assert (forkmax >= forkcnt);	2013	assert (forkmax >= forkcnt);
1885	array_verify (EV_A_ (W *)forks, forkcnt);	2014	array_verify (EV_A_ (W *)forks, forkcnt);
1886	#endif	2015	#endif
1887		2016
		2017	#if EV_CLEANUP_ENABLE
		2018	assert (cleanupmax >= cleanupcnt);
		2019	array_verify (EV_A_ (W *)cleanups, cleanupcnt);
		2020	#endif
		2021
1888	#if EV_ASYNC_ENABLE	2022	#if EV_ASYNC_ENABLE
1889	assert (asyncmax >= asynccnt);	2023	assert (asyncmax >= asynccnt);
1890	array_verify (EV_A_ (W *)asyncs, asynccnt);	2024	array_verify (EV_A_ (W *)asyncs, asynccnt);
1891	#endif	2025	#endif
1892		2026
		2027	#if EV_PREPARE_ENABLE
1893	assert (preparemax >= preparecnt);	2028	assert (preparemax >= preparecnt);
1894	array_verify (EV_A_ (W *)prepares, preparecnt);	2029	array_verify (EV_A_ (W *)prepares, preparecnt);
		2030	#endif
1895		2031
		2032	#if EV_CHECK_ENABLE
1896	assert (checkmax >= checkcnt);	2033	assert (checkmax >= checkcnt);
1897	array_verify (EV_A_ (W *)checks, checkcnt);	2034	array_verify (EV_A_ (W *)checks, checkcnt);
		2035	#endif
1898		2036
1899	# if 0	2037	# if 0
		2038	#if EV_CHILD_ENABLE
1900	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)
1901	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	2040	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		2041	#endif
1902	# endif	2042	# endif
1903	#endif	2043	#endif
1904	}	2044	}
1905	#endif	2045	#endif
1906		2046
1907	#if EV_MULTIPLICITY	2047	#if EV_MULTIPLICITY
1908	struct ev_loop *	2048	struct ev_loop *
1909	ev_default_loop_init (unsigned int flags)
1910	#else	2049	#else
1911	int	2050	int
		2051	#endif
1912	ev_default_loop (unsigned int flags)	2052	ev_default_loop (unsigned int flags)
1913	#endif
1914	{	2053	{
1915	if (!ev_default_loop_ptr)	2054	if (!ev_default_loop_ptr)
1916	{	2055	{
1917	#if EV_MULTIPLICITY	2056	#if EV_MULTIPLICITY
1918	EV_P = ev_default_loop_ptr = &default_loop_struct;	2057	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
1922		2061
1923	loop_init (EV_A_ flags);	2062	loop_init (EV_A_ flags);
1924		2063
1925	if (ev_backend (EV_A))	2064	if (ev_backend (EV_A))
1926	{	2065	{
1927	#ifndef _WIN32	2066	#if EV_CHILD_ENABLE
1928	ev_signal_init (&childev, childcb, SIGCHLD);	2067	ev_signal_init (&childev, childcb, SIGCHLD);
1929	ev_set_priority (&childev, EV_MAXPRI);	2068	ev_set_priority (&childev, EV_MAXPRI);
1930	ev_signal_start (EV_A_ &childev);	2069	ev_signal_start (EV_A_ &childev);
1931	ev_unref (EV_A); /* child watcher should not keep loop alive */	2070	ev_unref (EV_A); /* child watcher should not keep loop alive */
1932	#endif	2071	#endif
…		…
1937		2076
1938	return ev_default_loop_ptr;	2077	return ev_default_loop_ptr;
1939	}	2078	}
1940		2079
1941	void	2080	void
1942	ev_default_destroy (void)	2081	ev_loop_fork (EV_P)
1943	{	2082	{
1944	#if EV_MULTIPLICITY
1945	EV_P = ev_default_loop_ptr;
1946	#endif
1947
1948	ev_default_loop_ptr = 0;
1949
1950	#ifndef _WIN32
1951	ev_ref (EV_A); /* child watcher */
1952	ev_signal_stop (EV_A_ &childev);
1953	#endif
1954
1955	loop_destroy (EV_A);
1956	}
1957
1958	void
1959	ev_default_fork (void)
1960	{
1961	#if EV_MULTIPLICITY
1962	EV_P = ev_default_loop_ptr;
1963	#endif
1964
1965	postfork = 1; /* must be in line with ev_loop_fork */	2083	postfork = 1; /* must be in line with ev_default_fork */
1966	}	2084	}
1967		2085
1968	/*****************************************************************************/	2086	/*****************************************************************************/
1969		2087
1970	void	2088	void
…		…
2061	EV_FREQUENT_CHECK;	2179	EV_FREQUENT_CHECK;
2062	feed_reverse (EV_A_ (W)w);	2180	feed_reverse (EV_A_ (W)w);
2063	}	2181	}
2064	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2182	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2065		2183
2066	feed_reverse_done (EV_A_ EV_TIMEOUT);	2184	feed_reverse_done (EV_A_ EV_TIMER);
2067	}	2185	}
2068	}	2186	}
2069		2187
2070	#if EV_PERIODIC_ENABLE	2188	#if EV_PERIODIC_ENABLE
2071	/* make periodics pending */	2189	/* make periodics pending */
…		…
2124	feed_reverse_done (EV_A_ EV_PERIODIC);	2242	feed_reverse_done (EV_A_ EV_PERIODIC);
2125	}	2243	}
2126	}	2244	}
2127		2245
2128	/* simply recalculate all periodics */	2246	/* simply recalculate all periodics */
2129	/* TODO: maybe ensure that at leats one event happens when jumping forward? */	2247	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2130	static void noinline	2248	static void noinline
2131	periodics_reschedule (EV_P)	2249	periodics_reschedule (EV_P)
2132	{	2250	{
2133	int i;	2251	int i;
2134		2252
…		…
2162	ANHE_at_cache (*he);	2280	ANHE_at_cache (*he);
2163	}	2281	}
2164	}	2282	}
2165		2283
2166	/* fetch new monotonic and realtime times from the kernel */	2284	/* fetch new monotonic and realtime times from the kernel */
2167	/* also detetc if there was a timejump, and act accordingly */	2285	/* also detect if there was a timejump, and act accordingly */
2168	inline_speed void	2286	inline_speed void
2169	time_update (EV_P_ ev_tstamp max_block)	2287	time_update (EV_P_ ev_tstamp max_block)
2170	{	2288	{
2171	#if EV_USE_MONOTONIC	2289	#if EV_USE_MONOTONIC
2172	if (expect_true (have_monotonic))	2290	if (expect_true (have_monotonic))
…		…
2230	mn_now = ev_rt_now;	2348	mn_now = ev_rt_now;
2231	}	2349	}
2232	}	2350	}
2233		2351
2234	void	2352	void
2235	ev_loop (EV_P_ int flags)	2353	ev_run (EV_P_ int flags)
2236	{	2354	{
2237	#if EV_MINIMAL < 2	2355	#if EV_FEATURE_API
2238	++loop_depth;	2356	++loop_depth;
2239	#endif	2357	#endif
2240		2358
2241	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2359	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2242		2360
2243	loop_done = EVUNLOOP_CANCEL;	2361	loop_done = EVBREAK_CANCEL;
2244		2362
2245	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2363	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2246		2364
2247	do	2365	do
2248	{	2366	{
2249	#if EV_VERIFY >= 2	2367	#if EV_VERIFY >= 2
2250	ev_loop_verify (EV_A);	2368	ev_verify (EV_A);
2251	#endif	2369	#endif
2252		2370
2253	#ifndef _WIN32	2371	#ifndef _WIN32
2254	if (expect_false (curpid)) /* penalise the forking check even more */	2372	if (expect_false (curpid)) /* penalise the forking check even more */
2255	if (expect_false (getpid () != curpid))	2373	if (expect_false (getpid () != curpid))
…		…
2267	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2385	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2268	EV_INVOKE_PENDING;	2386	EV_INVOKE_PENDING;
2269	}	2387	}
2270	#endif	2388	#endif
2271		2389
		2390	#if EV_PREPARE_ENABLE
2272	/* queue prepare watchers (and execute them) */	2391	/* queue prepare watchers (and execute them) */
2273	if (expect_false (preparecnt))	2392	if (expect_false (preparecnt))
2274	{	2393	{
2275	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2394	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2276	EV_INVOKE_PENDING;	2395	EV_INVOKE_PENDING;
2277	}	2396	}
		2397	#endif
2278		2398
2279	if (expect_false (loop_done))	2399	if (expect_false (loop_done))
2280	break;	2400	break;
2281		2401
2282	/* we might have forked, so reify kernel state if necessary */	2402	/* we might have forked, so reify kernel state if necessary */
…		…
2289	/* calculate blocking time */	2409	/* calculate blocking time */
2290	{	2410	{
2291	ev_tstamp waittime = 0.;	2411	ev_tstamp waittime = 0.;
2292	ev_tstamp sleeptime = 0.;	2412	ev_tstamp sleeptime = 0.;
2293		2413
		2414	/* remember old timestamp for io_blocktime calculation */
		2415	ev_tstamp prev_mn_now = mn_now;
		2416
		2417	/* update time to cancel out callback processing overhead */
		2418	time_update (EV_A_ 1e100);
		2419
2294	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2420	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2295	{	2421	{
2296	/* remember old timestamp for io_blocktime calculation */
2297	ev_tstamp prev_mn_now = mn_now;
2298
2299	/* update time to cancel out callback processing overhead */
2300	time_update (EV_A_ 1e100);
2301
2302	waittime = MAX_BLOCKTIME;	2422	waittime = MAX_BLOCKTIME;
2303		2423
2304	if (timercnt)	2424	if (timercnt)
2305	{	2425	{
2306	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2426	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
…		…
2333	waittime -= sleeptime;	2453	waittime -= sleeptime;
2334	}	2454	}
2335	}	2455	}
2336	}	2456	}
2337		2457
2338	#if EV_MINIMAL < 2	2458	#if EV_FEATURE_API
2339	++loop_count;	2459	++loop_count;
2340	#endif	2460	#endif
2341	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2461	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2342	backend_poll (EV_A_ waittime);	2462	backend_poll (EV_A_ waittime);
2343	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2463	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2344		2464
2345	/* update ev_rt_now, do magic */	2465	/* update ev_rt_now, do magic */
2346	time_update (EV_A_ waittime + sleeptime);	2466	time_update (EV_A_ waittime + sleeptime);
2347	}	2467	}
2348		2468
…		…
2355	#if EV_IDLE_ENABLE	2475	#if EV_IDLE_ENABLE
2356	/* queue idle watchers unless other events are pending */	2476	/* queue idle watchers unless other events are pending */
2357	idle_reify (EV_A);	2477	idle_reify (EV_A);
2358	#endif	2478	#endif
2359		2479
		2480	#if EV_CHECK_ENABLE
2360	/* queue check watchers, to be executed first */	2481	/* queue check watchers, to be executed first */
2361	if (expect_false (checkcnt))	2482	if (expect_false (checkcnt))
2362	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2483	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2484	#endif
2363		2485
2364	EV_INVOKE_PENDING;	2486	EV_INVOKE_PENDING;
2365	}	2487	}
2366	while (expect_true (	2488	while (expect_true (
2367	activecnt	2489	activecnt
2368	&& !loop_done	2490	&& !loop_done
2369	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2491	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2370	));	2492	));
2371		2493
2372	if (loop_done == EVUNLOOP_ONE)	2494	if (loop_done == EVBREAK_ONE)
2373	loop_done = EVUNLOOP_CANCEL;	2495	loop_done = EVBREAK_CANCEL;
2374		2496
2375	#if EV_MINIMAL < 2	2497	#if EV_FEATURE_API
2376	--loop_depth;	2498	--loop_depth;
2377	#endif	2499	#endif
2378	}	2500	}
2379		2501
2380	void	2502	void
2381	ev_unloop (EV_P_ int how)	2503	ev_break (EV_P_ int how)
2382	{	2504	{
2383	loop_done = how;	2505	loop_done = how;
2384	}	2506	}
2385		2507
2386	void	2508	void
…		…
2506		2628
2507	if (expect_false (ev_is_active (w)))	2629	if (expect_false (ev_is_active (w)))
2508	return;	2630	return;
2509		2631
2510	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2632	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2511	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2633	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2512		2634
2513	EV_FREQUENT_CHECK;	2635	EV_FREQUENT_CHECK;
2514		2636
2515	ev_start (EV_A_ (W)w, 1);	2637	ev_start (EV_A_ (W)w, 1);
2516	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2638	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2534	EV_FREQUENT_CHECK;	2656	EV_FREQUENT_CHECK;
2535		2657
2536	wlist_del (&anfds[w->fd].head, (WL)w);	2658	wlist_del (&anfds[w->fd].head, (WL)w);
2537	ev_stop (EV_A_ (W)w);	2659	ev_stop (EV_A_ (W)w);
2538		2660
2539	fd_change (EV_A_ w->fd, 1);	2661	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2540		2662
2541	EV_FREQUENT_CHECK;	2663	EV_FREQUENT_CHECK;
2542	}	2664	}
2543		2665
2544	void noinline	2666	void noinline
…		…
2586	timers [active] = timers [timercnt + HEAP0];	2708	timers [active] = timers [timercnt + HEAP0];
2587	adjustheap (timers, timercnt, active);	2709	adjustheap (timers, timercnt, active);
2588	}	2710	}
2589	}	2711	}
2590		2712
2591	EV_FREQUENT_CHECK;
2592
2593	ev_at (w) -= mn_now;	2713	ev_at (w) -= mn_now;
2594		2714
2595	ev_stop (EV_A_ (W)w);	2715	ev_stop (EV_A_ (W)w);
		2716
		2717	EV_FREQUENT_CHECK;
2596	}	2718	}
2597		2719
2598	void noinline	2720	void noinline
2599	ev_timer_again (EV_P_ ev_timer *w)	2721	ev_timer_again (EV_P_ ev_timer *w)
2600	{	2722	{
…		…
2679	periodics [active] = periodics [periodiccnt + HEAP0];	2801	periodics [active] = periodics [periodiccnt + HEAP0];
2680	adjustheap (periodics, periodiccnt, active);	2802	adjustheap (periodics, periodiccnt, active);
2681	}	2803	}
2682	}	2804	}
2683		2805
2684	EV_FREQUENT_CHECK;
2685
2686	ev_stop (EV_A_ (W)w);	2806	ev_stop (EV_A_ (W)w);
		2807
		2808	EV_FREQUENT_CHECK;
2687	}	2809	}
2688		2810
2689	void noinline	2811	void noinline
2690	ev_periodic_again (EV_P_ ev_periodic *w)	2812	ev_periodic_again (EV_P_ ev_periodic *w)
2691	{	2813	{
…		…
2696	#endif	2818	#endif
2697		2819
2698	#ifndef SA_RESTART	2820	#ifndef SA_RESTART
2699	# define SA_RESTART 0	2821	# define SA_RESTART 0
2700	#endif	2822	#endif
		2823
		2824	#if EV_SIGNAL_ENABLE
2701		2825
2702	void noinline	2826	void noinline
2703	ev_signal_start (EV_P_ ev_signal *w)	2827	ev_signal_start (EV_P_ ev_signal *w)
2704	{	2828	{
2705	if (expect_false (ev_is_active (w)))	2829	if (expect_false (ev_is_active (w)))
…		…
2752	if (!((WL)w)->next)	2876	if (!((WL)w)->next)
2753	# if EV_USE_SIGNALFD	2877	# if EV_USE_SIGNALFD
2754	if (sigfd < 0) /*TODO*/	2878	if (sigfd < 0) /*TODO*/
2755	# endif	2879	# endif
2756	{	2880	{
2757	# if _WIN32	2881	# ifdef _WIN32
		2882	evpipe_init (EV_A);
		2883
2758	signal (w->signum, ev_sighandler);	2884	signal (w->signum, ev_sighandler);
2759	# else	2885	# else
2760	struct sigaction sa;	2886	struct sigaction sa;
2761		2887
2762	evpipe_init (EV_A);	2888	evpipe_init (EV_A);
…		…
2764	sa.sa_handler = ev_sighandler;	2890	sa.sa_handler = ev_sighandler;
2765	sigfillset (&sa.sa_mask);	2891	sigfillset (&sa.sa_mask);
2766	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2892	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2767	sigaction (w->signum, &sa, 0);	2893	sigaction (w->signum, &sa, 0);
2768		2894
		2895	if (origflags & EVFLAG_NOSIGMASK)
		2896	{
2769	sigemptyset (&sa.sa_mask);	2897	sigemptyset (&sa.sa_mask);
2770	sigaddset (&sa.sa_mask, w->signum);	2898	sigaddset (&sa.sa_mask, w->signum);
2771	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);	2899	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		2900	}
2772	#endif	2901	#endif
2773	}	2902	}
2774		2903
2775	EV_FREQUENT_CHECK;	2904	EV_FREQUENT_CHECK;
2776	}	2905	}
…		…
2793	signals [w->signum - 1].loop = 0; /* unattach from signal */	2922	signals [w->signum - 1].loop = 0; /* unattach from signal */
2794	#endif	2923	#endif
2795	#if EV_USE_SIGNALFD	2924	#if EV_USE_SIGNALFD
2796	if (sigfd >= 0)	2925	if (sigfd >= 0)
2797	{	2926	{
2798	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2927	sigset_t ss;
		2928
		2929	sigemptyset (&ss);
		2930	sigaddset (&ss, w->signum);
2799	sigdelset (&sigfd_set, w->signum);	2931	sigdelset (&sigfd_set, w->signum);
		2932
2800	signalfd (sigfd, &sigfd_set, 0);	2933	signalfd (sigfd, &sigfd_set, 0);
2801	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2934	sigprocmask (SIG_UNBLOCK, &ss, 0);
2802	/*TODO: maybe unblock signal? */
2803	}	2935	}
2804	else	2936	else
2805	#endif	2937	#endif
2806	signal (w->signum, SIG_DFL);	2938	signal (w->signum, SIG_DFL);
2807	}	2939	}
2808		2940
2809	EV_FREQUENT_CHECK;	2941	EV_FREQUENT_CHECK;
2810	}	2942	}
2811		2943
		2944	#endif
		2945
		2946	#if EV_CHILD_ENABLE
		2947
2812	void	2948	void
2813	ev_child_start (EV_P_ ev_child *w)	2949	ev_child_start (EV_P_ ev_child *w)
2814	{	2950	{
2815	#if EV_MULTIPLICITY	2951	#if EV_MULTIPLICITY
2816	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2952	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
…		…
2819	return;	2955	return;
2820		2956
2821	EV_FREQUENT_CHECK;	2957	EV_FREQUENT_CHECK;
2822		2958
2823	ev_start (EV_A_ (W)w, 1);	2959	ev_start (EV_A_ (W)w, 1);
2824	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2960	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2825		2961
2826	EV_FREQUENT_CHECK;	2962	EV_FREQUENT_CHECK;
2827	}	2963	}
2828		2964
2829	void	2965	void
…		…
2833	if (expect_false (!ev_is_active (w)))	2969	if (expect_false (!ev_is_active (w)))
2834	return;	2970	return;
2835		2971
2836	EV_FREQUENT_CHECK;	2972	EV_FREQUENT_CHECK;
2837		2973
2838	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2974	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2839	ev_stop (EV_A_ (W)w);	2975	ev_stop (EV_A_ (W)w);
2840		2976
2841	EV_FREQUENT_CHECK;	2977	EV_FREQUENT_CHECK;
2842	}	2978	}
		2979
		2980	#endif
2843		2981
2844	#if EV_STAT_ENABLE	2982	#if EV_STAT_ENABLE
2845		2983
2846	# ifdef _WIN32	2984	# ifdef _WIN32
2847	# undef lstat	2985	# undef lstat
…		…
2853	#define MIN_STAT_INTERVAL 0.1074891	2991	#define MIN_STAT_INTERVAL 0.1074891
2854		2992
2855	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2993	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2856		2994
2857	#if EV_USE_INOTIFY	2995	#if EV_USE_INOTIFY
2858	# define EV_INOTIFY_BUFSIZE 8192	2996
		2997	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2998	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2859		2999
2860	static void noinline	3000	static void noinline
2861	infy_add (EV_P_ ev_stat *w)	3001	infy_add (EV_P_ ev_stat *w)
2862	{	3002	{
2863	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);	3003	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);
2864		3004
2865	if (w->wd < 0)	3005	if (w->wd >= 0)
		3006	{
		3007	struct statfs sfs;
		3008
		3009	/* now local changes will be tracked by inotify, but remote changes won't */
		3010	/* unless the filesystem is known to be local, we therefore still poll */
		3011	/* also do poll on <2.6.25, but with normal frequency */
		3012
		3013	if (!fs_2625)
		3014	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3015	else if (!statfs (w->path, &sfs)
		3016	&& (sfs.f_type == 0x1373 /* devfs */
		3017	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3018	|| sfs.f_type == 0x3153464a /* jfs */
		3019	|| sfs.f_type == 0x52654973 /* reiser3 */
		3020	|| sfs.f_type == 0x01021994 /* tempfs */
		3021	|| sfs.f_type == 0x58465342 /* xfs */))
		3022	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		3023	else
		3024	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2866	{	3025	}
		3026	else
		3027	{
		3028	/* can't use inotify, continue to stat */
2867	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3029	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2868	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2869		3030
2870	/* monitor some parent directory for speedup hints */	3031	/* if path is not there, monitor some parent directory for speedup hints */
2871	/* note that exceeding the hardcoded path limit is not a correctness issue, */	3032	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2872	/* but an efficiency issue only */	3033	/* but an efficiency issue only */
2873	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	3034	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2874	{	3035	{
2875	char path [4096];	3036	char path [4096];
…		…
2891	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	3052	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2892	}	3053	}
2893	}	3054	}
2894		3055
2895	if (w->wd >= 0)	3056	if (w->wd >= 0)
2896	{
2897	struct statfs sfs;
2898
2899	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3057	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2900		3058
2901	/* now local changes will be tracked by inotify, but remote changes won't */	3059	/* now re-arm timer, if required */
2902	/* unless the filesystem it known to be local, we therefore still poll */	3060	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2903	/* also do poll on <2.6.25, but with normal frequency */
2904
2905	if (fs_2625 && !statfs (w->path, &sfs))
2906	if (sfs.f_type == 0x1373 /* devfs */
2907	|| sfs.f_type == 0xEF53 /* ext2/3 */
2908	|| sfs.f_type == 0x3153464a /* jfs */
2909	|| sfs.f_type == 0x52654973 /* reiser3 */
2910	|| sfs.f_type == 0x01021994 /* tempfs */
2911	|| sfs.f_type == 0x58465342 /* xfs */)
2912	return;
2913
2914	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2915	ev_timer_again (EV_A_ &w->timer);	3061	ev_timer_again (EV_A_ &w->timer);
2916	}	3062	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2917	}	3063	}
2918		3064
2919	static void noinline	3065	static void noinline
2920	infy_del (EV_P_ ev_stat *w)	3066	infy_del (EV_P_ ev_stat *w)
2921	{	3067	{
…		…
2924		3070
2925	if (wd < 0)	3071	if (wd < 0)
2926	return;	3072	return;
2927		3073
2928	w->wd = -2;	3074	w->wd = -2;
2929	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3075	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2930	wlist_del (&fs_hash [slot].head, (WL)w);	3076	wlist_del (&fs_hash [slot].head, (WL)w);
2931		3077
2932	/* remove this watcher, if others are watching it, they will rearm */	3078	/* remove this watcher, if others are watching it, they will rearm */
2933	inotify_rm_watch (fs_fd, wd);	3079	inotify_rm_watch (fs_fd, wd);
2934	}	3080	}
…		…
2936	static void noinline	3082	static void noinline
2937	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3083	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2938	{	3084	{
2939	if (slot < 0)	3085	if (slot < 0)
2940	/* overflow, need to check for all hash slots */	3086	/* overflow, need to check for all hash slots */
2941	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3087	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2942	infy_wd (EV_A_ slot, wd, ev);	3088	infy_wd (EV_A_ slot, wd, ev);
2943	else	3089	else
2944	{	3090	{
2945	WL w_;	3091	WL w_;
2946		3092
2947	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3093	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2948	{	3094	{
2949	ev_stat *w = (ev_stat *)w_;	3095	ev_stat *w = (ev_stat *)w_;
2950	w_ = w_->next; /* lets us remove this watcher and all before it */	3096	w_ = w_->next; /* lets us remove this watcher and all before it */
2951		3097
2952	if (w->wd == wd || wd == -1)	3098	if (w->wd == wd || wd == -1)
2953	{	3099	{
2954	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3100	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2955	{	3101	{
2956	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3102	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2957	w->wd = -1;	3103	w->wd = -1;
2958	infy_add (EV_A_ w); /* re-add, no matter what */	3104	infy_add (EV_A_ w); /* re-add, no matter what */
2959	}	3105	}
2960		3106
2961	stat_timer_cb (EV_A_ &w->timer, 0);	3107	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2966		3112
2967	static void	3113	static void
2968	infy_cb (EV_P_ ev_io *w, int revents)	3114	infy_cb (EV_P_ ev_io *w, int revents)
2969	{	3115	{
2970	char buf [EV_INOTIFY_BUFSIZE];	3116	char buf [EV_INOTIFY_BUFSIZE];
2971	struct inotify_event *ev = (struct inotify_event *)buf;
2972	int ofs;	3117	int ofs;
2973	int len = read (fs_fd, buf, sizeof (buf));	3118	int len = read (fs_fd, buf, sizeof (buf));
2974		3119
2975	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3120	for (ofs = 0; ofs < len; )
		3121	{
		3122	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2976	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3123	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3124	ofs += sizeof (struct inotify_event) + ev->len;
		3125	}
2977	}	3126	}
2978		3127
2979	inline_size void	3128	inline_size void
2980	check_2625 (EV_P)	3129	ev_check_2625 (EV_P)
2981	{	3130	{
2982	/* kernels < 2.6.25 are borked	3131	/* kernels < 2.6.25 are borked
2983	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3132	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2984	*/	3133	*/
2985	struct utsname buf;	3134	if (ev_linux_version () < 0x020619)
2986	int major, minor, micro;
2987
2988	if (uname (&buf))
2989	return;	3135	return;
2990		3136
2991	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2992	return;
2993
2994	if (major < 2
2995	|| (major == 2 && minor < 6)
2996	|| (major == 2 && minor == 6 && micro < 25))
2997	return;
2998
2999	fs_2625 = 1;	3137	fs_2625 = 1;
		3138	}
		3139
		3140	inline_size int
		3141	infy_newfd (void)
		3142	{
		3143	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3144	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3145	if (fd >= 0)
		3146	return fd;
		3147	#endif
		3148	return inotify_init ();
3000	}	3149	}
3001		3150
3002	inline_size void	3151	inline_size void
3003	infy_init (EV_P)	3152	infy_init (EV_P)
3004	{	3153	{
3005	if (fs_fd != -2)	3154	if (fs_fd != -2)
3006	return;	3155	return;
3007		3156
3008	fs_fd = -1;	3157	fs_fd = -1;
3009		3158
3010	check_2625 (EV_A);	3159	ev_check_2625 (EV_A);
3011		3160
3012	fs_fd = inotify_init ();	3161	fs_fd = infy_newfd ();
3013		3162
3014	if (fs_fd >= 0)	3163	if (fs_fd >= 0)
3015	{	3164	{
		3165	fd_intern (fs_fd);
3016	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3166	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
3017	ev_set_priority (&fs_w, EV_MAXPRI);	3167	ev_set_priority (&fs_w, EV_MAXPRI);
3018	ev_io_start (EV_A_ &fs_w);	3168	ev_io_start (EV_A_ &fs_w);
		3169	ev_unref (EV_A);
3019	}	3170	}
3020	}	3171	}
3021		3172
3022	inline_size void	3173	inline_size void
3023	infy_fork (EV_P)	3174	infy_fork (EV_P)
…		…
3025	int slot;	3176	int slot;
3026		3177
3027	if (fs_fd < 0)	3178	if (fs_fd < 0)
3028	return;	3179	return;
3029		3180
		3181	ev_ref (EV_A);
		3182	ev_io_stop (EV_A_ &fs_w);
3030	close (fs_fd);	3183	close (fs_fd);
3031	fs_fd = inotify_init ();	3184	fs_fd = infy_newfd ();
3032		3185
		3186	if (fs_fd >= 0)
		3187	{
		3188	fd_intern (fs_fd);
		3189	ev_io_set (&fs_w, fs_fd, EV_READ);
		3190	ev_io_start (EV_A_ &fs_w);
		3191	ev_unref (EV_A);
		3192	}
		3193
3033	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3194	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3034	{	3195	{
3035	WL w_ = fs_hash [slot].head;	3196	WL w_ = fs_hash [slot].head;
3036	fs_hash [slot].head = 0;	3197	fs_hash [slot].head = 0;
3037		3198
3038	while (w_)	3199	while (w_)
…		…
3043	w->wd = -1;	3204	w->wd = -1;
3044		3205
3045	if (fs_fd >= 0)	3206	if (fs_fd >= 0)
3046	infy_add (EV_A_ w); /* re-add, no matter what */	3207	infy_add (EV_A_ w); /* re-add, no matter what */
3047	else	3208	else
		3209	{
		3210	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3211	if (ev_is_active (&w->timer)) ev_ref (EV_A);
3048	ev_timer_again (EV_A_ &w->timer);	3212	ev_timer_again (EV_A_ &w->timer);
		3213	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3214	}
3049	}	3215	}
3050	}	3216	}
3051	}	3217	}
3052		3218
3053	#endif	3219	#endif
…		…
3070	static void noinline	3236	static void noinline
3071	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3237	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3072	{	3238	{
3073	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3239	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3074		3240
3075	/* we copy this here each the time so that */	3241	ev_statdata prev = w->attr;
3076	/* prev has the old value when the callback gets invoked */
3077	w->prev = w->attr;
3078	ev_stat_stat (EV_A_ w);	3242	ev_stat_stat (EV_A_ w);
3079		3243
3080	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3244	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3081	if (	3245	if (
3082	w->prev.st_dev != w->attr.st_dev	3246	prev.st_dev != w->attr.st_dev
3083	|| w->prev.st_ino != w->attr.st_ino	3247	|| prev.st_ino != w->attr.st_ino
3084	|| w->prev.st_mode != w->attr.st_mode	3248	|| prev.st_mode != w->attr.st_mode
3085	|| w->prev.st_nlink != w->attr.st_nlink	3249	|| prev.st_nlink != w->attr.st_nlink
3086	|| w->prev.st_uid != w->attr.st_uid	3250	|| prev.st_uid != w->attr.st_uid
3087	|| w->prev.st_gid != w->attr.st_gid	3251	|| prev.st_gid != w->attr.st_gid
3088	|| w->prev.st_rdev != w->attr.st_rdev	3252	|| prev.st_rdev != w->attr.st_rdev
3089	|| w->prev.st_size != w->attr.st_size	3253	|| prev.st_size != w->attr.st_size
3090	|| w->prev.st_atime != w->attr.st_atime	3254	|| prev.st_atime != w->attr.st_atime
3091	|| w->prev.st_mtime != w->attr.st_mtime	3255	|| prev.st_mtime != w->attr.st_mtime
3092	|| w->prev.st_ctime != w->attr.st_ctime	3256	|| prev.st_ctime != w->attr.st_ctime
3093	) {	3257	) {
		3258	/* we only update w->prev on actual differences */
		3259	/* in case we test more often than invoke the callback, */
		3260	/* to ensure that prev is always different to attr */
		3261	w->prev = prev;
		3262
3094	#if EV_USE_INOTIFY	3263	#if EV_USE_INOTIFY
3095	if (fs_fd >= 0)	3264	if (fs_fd >= 0)
3096	{	3265	{
3097	infy_del (EV_A_ w);	3266	infy_del (EV_A_ w);
3098	infy_add (EV_A_ w);	3267	infy_add (EV_A_ w);
…		…
3123		3292
3124	if (fs_fd >= 0)	3293	if (fs_fd >= 0)
3125	infy_add (EV_A_ w);	3294	infy_add (EV_A_ w);
3126	else	3295	else
3127	#endif	3296	#endif
		3297	{
3128	ev_timer_again (EV_A_ &w->timer);	3298	ev_timer_again (EV_A_ &w->timer);
		3299	ev_unref (EV_A);
		3300	}
3129		3301
3130	ev_start (EV_A_ (W)w, 1);	3302	ev_start (EV_A_ (W)w, 1);
3131		3303
3132	EV_FREQUENT_CHECK;	3304	EV_FREQUENT_CHECK;
3133	}	3305	}
…		…
3142	EV_FREQUENT_CHECK;	3314	EV_FREQUENT_CHECK;
3143		3315
3144	#if EV_USE_INOTIFY	3316	#if EV_USE_INOTIFY
3145	infy_del (EV_A_ w);	3317	infy_del (EV_A_ w);
3146	#endif	3318	#endif
		3319
		3320	if (ev_is_active (&w->timer))
		3321	{
		3322	ev_ref (EV_A);
3147	ev_timer_stop (EV_A_ &w->timer);	3323	ev_timer_stop (EV_A_ &w->timer);
		3324	}
3148		3325
3149	ev_stop (EV_A_ (W)w);	3326	ev_stop (EV_A_ (W)w);
3150		3327
3151	EV_FREQUENT_CHECK;	3328	EV_FREQUENT_CHECK;
3152	}	3329	}
…		…
3197		3374
3198	EV_FREQUENT_CHECK;	3375	EV_FREQUENT_CHECK;
3199	}	3376	}
3200	#endif	3377	#endif
3201		3378
		3379	#if EV_PREPARE_ENABLE
3202	void	3380	void
3203	ev_prepare_start (EV_P_ ev_prepare *w)	3381	ev_prepare_start (EV_P_ ev_prepare *w)
3204	{	3382	{
3205	if (expect_false (ev_is_active (w)))	3383	if (expect_false (ev_is_active (w)))
3206	return;	3384	return;
…		…
3232		3410
3233	ev_stop (EV_A_ (W)w);	3411	ev_stop (EV_A_ (W)w);
3234		3412
3235	EV_FREQUENT_CHECK;	3413	EV_FREQUENT_CHECK;
3236	}	3414	}
		3415	#endif
3237		3416
		3417	#if EV_CHECK_ENABLE
3238	void	3418	void
3239	ev_check_start (EV_P_ ev_check *w)	3419	ev_check_start (EV_P_ ev_check *w)
3240	{	3420	{
3241	if (expect_false (ev_is_active (w)))	3421	if (expect_false (ev_is_active (w)))
3242	return;	3422	return;
…		…
3268		3448
3269	ev_stop (EV_A_ (W)w);	3449	ev_stop (EV_A_ (W)w);
3270		3450
3271	EV_FREQUENT_CHECK;	3451	EV_FREQUENT_CHECK;
3272	}	3452	}
		3453	#endif
3273		3454
3274	#if EV_EMBED_ENABLE	3455	#if EV_EMBED_ENABLE
3275	void noinline	3456	void noinline
3276	ev_embed_sweep (EV_P_ ev_embed *w)	3457	ev_embed_sweep (EV_P_ ev_embed *w)
3277	{	3458	{
3278	ev_loop (w->other, EVLOOP_NONBLOCK);	3459	ev_run (w->other, EVRUN_NOWAIT);
3279	}	3460	}
3280		3461
3281	static void	3462	static void
3282	embed_io_cb (EV_P_ ev_io *io, int revents)	3463	embed_io_cb (EV_P_ ev_io *io, int revents)
3283	{	3464	{
3284	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	3465	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3285		3466
3286	if (ev_cb (w))	3467	if (ev_cb (w))
3287	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3468	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3288	else	3469	else
3289	ev_loop (w->other, EVLOOP_NONBLOCK);	3470	ev_run (w->other, EVRUN_NOWAIT);
3290	}	3471	}
3291		3472
3292	static void	3473	static void
3293	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3474	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3294	{	3475	{
…		…
3298	EV_P = w->other;	3479	EV_P = w->other;
3299		3480
3300	while (fdchangecnt)	3481	while (fdchangecnt)
3301	{	3482	{
3302	fd_reify (EV_A);	3483	fd_reify (EV_A);
3303	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3484	ev_run (EV_A_ EVRUN_NOWAIT);
3304	}	3485	}
3305	}	3486	}
3306	}	3487	}
3307		3488
3308	static void	3489	static void
…		…
3314		3495
3315	{	3496	{
3316	EV_P = w->other;	3497	EV_P = w->other;
3317		3498
3318	ev_loop_fork (EV_A);	3499	ev_loop_fork (EV_A);
3319	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3500	ev_run (EV_A_ EVRUN_NOWAIT);
3320	}	3501	}
3321		3502
3322	ev_embed_start (EV_A_ w);	3503	ev_embed_start (EV_A_ w);
3323	}	3504	}
3324		3505
…		…
3372		3553
3373	ev_io_stop (EV_A_ &w->io);	3554	ev_io_stop (EV_A_ &w->io);
3374	ev_prepare_stop (EV_A_ &w->prepare);	3555	ev_prepare_stop (EV_A_ &w->prepare);
3375	ev_fork_stop (EV_A_ &w->fork);	3556	ev_fork_stop (EV_A_ &w->fork);
3376		3557
		3558	ev_stop (EV_A_ (W)w);
		3559
3377	EV_FREQUENT_CHECK;	3560	EV_FREQUENT_CHECK;
3378	}	3561	}
3379	#endif	3562	#endif
3380		3563
3381	#if EV_FORK_ENABLE	3564	#if EV_FORK_ENABLE
…		…
3414		3597
3415	EV_FREQUENT_CHECK;	3598	EV_FREQUENT_CHECK;
3416	}	3599	}
3417	#endif	3600	#endif
3418		3601
3419	#if EV_ASYNC_ENABLE	3602	#if EV_CLEANUP_ENABLE
3420	void	3603	void
3421	ev_async_start (EV_P_ ev_async *w)	3604	ev_cleanup_start (EV_P_ ev_cleanup *w)
3422	{	3605	{
3423	if (expect_false (ev_is_active (w)))	3606	if (expect_false (ev_is_active (w)))
3424	return;	3607	return;
		3608
		3609	EV_FREQUENT_CHECK;
		3610
		3611	ev_start (EV_A_ (W)w, ++cleanupcnt);
		3612	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
		3613	cleanups [cleanupcnt - 1] = w;
		3614
		3615	/* cleanup watchers should never keep a refcount on the loop */
		3616	ev_unref (EV_A);
		3617	EV_FREQUENT_CHECK;
		3618	}
		3619
		3620	void
		3621	ev_cleanup_stop (EV_P_ ev_cleanup *w)
		3622	{
		3623	clear_pending (EV_A_ (W)w);
		3624	if (expect_false (!ev_is_active (w)))
		3625	return;
		3626
		3627	EV_FREQUENT_CHECK;
		3628	ev_ref (EV_A);
		3629
		3630	{
		3631	int active = ev_active (w);
		3632
		3633	cleanups [active - 1] = cleanups [--cleanupcnt];
		3634	ev_active (cleanups [active - 1]) = active;
		3635	}
		3636
		3637	ev_stop (EV_A_ (W)w);
		3638
		3639	EV_FREQUENT_CHECK;
		3640	}
		3641	#endif
		3642
		3643	#if EV_ASYNC_ENABLE
		3644	void
		3645	ev_async_start (EV_P_ ev_async *w)
		3646	{
		3647	if (expect_false (ev_is_active (w)))
		3648	return;
		3649
		3650	w->sent = 0;
3425		3651
3426	evpipe_init (EV_A);	3652	evpipe_init (EV_A);
3427		3653
3428	EV_FREQUENT_CHECK;	3654	EV_FREQUENT_CHECK;
3429		3655
…		…
3507	{	3733	{
3508	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3734	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3509		3735
3510	if (expect_false (!once))	3736	if (expect_false (!once))
3511	{	3737	{
3512	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3738	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3513	return;	3739	return;
3514	}	3740	}
3515		3741
3516	once->cb = cb;	3742	once->cb = cb;
3517	once->arg = arg;	3743	once->arg = arg;
…		…
3604	if (types & EV_ASYNC)	3830	if (types & EV_ASYNC)
3605	for (i = asynccnt; i--; )	3831	for (i = asynccnt; i--; )
3606	cb (EV_A_ EV_ASYNC, asyncs [i]);	3832	cb (EV_A_ EV_ASYNC, asyncs [i]);
3607	#endif	3833	#endif
3608		3834
		3835	#if EV_PREPARE_ENABLE
3609	if (types & EV_PREPARE)	3836	if (types & EV_PREPARE)
3610	for (i = preparecnt; i--; )	3837	for (i = preparecnt; i--; )
3611	#if EV_EMBED_ENABLE	3838	# if EV_EMBED_ENABLE
3612	if (ev_cb (prepares [i]) != embed_prepare_cb)	3839	if (ev_cb (prepares [i]) != embed_prepare_cb)
3613	#endif	3840	# endif
3614	cb (EV_A_ EV_PREPARE, prepares [i]);	3841	cb (EV_A_ EV_PREPARE, prepares [i]);
		3842	#endif
3615		3843
		3844	#if EV_CHECK_ENABLE
3616	if (types & EV_CHECK)	3845	if (types & EV_CHECK)
3617	for (i = checkcnt; i--; )	3846	for (i = checkcnt; i--; )
3618	cb (EV_A_ EV_CHECK, checks [i]);	3847	cb (EV_A_ EV_CHECK, checks [i]);
		3848	#endif
3619		3849
		3850	#if EV_SIGNAL_ENABLE
3620	if (types & EV_SIGNAL)	3851	if (types & EV_SIGNAL)
3621	for (i = 0; i < EV_NSIG - 1; ++i)	3852	for (i = 0; i < EV_NSIG - 1; ++i)
3622	for (wl = signals [i].head; wl; )	3853	for (wl = signals [i].head; wl; )
3623	{	3854	{
3624	wn = wl->next;	3855	wn = wl->next;
3625	cb (EV_A_ EV_SIGNAL, wl);	3856	cb (EV_A_ EV_SIGNAL, wl);
3626	wl = wn;	3857	wl = wn;
3627	}	3858	}
		3859	#endif
3628		3860
		3861	#if EV_CHILD_ENABLE
3629	if (types & EV_CHILD)	3862	if (types & EV_CHILD)
3630	for (i = EV_PID_HASHSIZE; i--; )	3863	for (i = (EV_PID_HASHSIZE); i--; )
3631	for (wl = childs [i]; wl; )	3864	for (wl = childs [i]; wl; )
3632	{	3865	{
3633	wn = wl->next;	3866	wn = wl->next;
3634	cb (EV_A_ EV_CHILD, wl);	3867	cb (EV_A_ EV_CHILD, wl);
3635	wl = wn;	3868	wl = wn;
3636	}	3869	}
		3870	#endif
3637	/* EV_STAT 0x00001000 /* stat data changed */	3871	/* EV_STAT 0x00001000 /* stat data changed */
3638	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3872	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3639	}	3873	}
3640	#endif	3874	#endif
3641		3875
3642	#if EV_MULTIPLICITY	3876	#if EV_MULTIPLICITY
3643	#include "ev_wrap.h"	3877	#include "ev_wrap.h"
3644	#endif	3878	#endif
3645		3879
3646	#ifdef __cplusplus	3880	EV_CPP(})
3647	}
3648	#endif
3649		3881

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