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Comparing libev/ev.c (file contents):
Revision 1.325 by root, Sun Jan 24 12:31:55 2010 UTC vs.
Revision 1.356 by root, Fri Oct 22 11:21:52 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	# ifndef EV_USE_KQUEUE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H	114	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116	# define EV_USE_KQUEUE 1	115	# ifndef EV_USE_KQUEUE
117	# else	116	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
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>
…		…
163		168
164	#include <assert.h>	169	#include <assert.h>
165	#include <errno.h>	170	#include <errno.h>
166	#include <sys/types.h>	171	#include <sys/types.h>
167	#include <time.h>	172	#include <time.h>
		173	#include <limits.h>
168		174
169	#include <signal.h>	175	#include <signal.h>
170		176
171	#ifdef EV_H	177	#ifdef EV_H
172	# include EV_H	178	# include EV_H
173	#else	179	#else
174	# include "ev.h"	180	# include "ev.h"
175	#endif	181	#endif
		182
		183	EV_CPP(extern "C" {)
176		184
177	#ifndef _WIN32	185	#ifndef _WIN32
178	# include <sys/time.h>	186	# include <sys/time.h>
179	# include <sys/wait.h>	187	# include <sys/wait.h>
180	# include <unistd.h>	188	# include <unistd.h>
…		…
183	# define WIN32_LEAN_AND_MEAN	191	# define WIN32_LEAN_AND_MEAN
184	# include <windows.h>	192	# include <windows.h>
185	# ifndef EV_SELECT_IS_WINSOCKET	193	# ifndef EV_SELECT_IS_WINSOCKET
186	# define EV_SELECT_IS_WINSOCKET 1	194	# define EV_SELECT_IS_WINSOCKET 1
187	# endif	195	# endif
		196	# undef EV_AVOID_STDIO
188	#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
189		206
190	/* 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 */
191		208
192	/* try to deduce the maximum number of signals on this platform */	209	/* try to deduce the maximum number of signals on this platform */
193	#if defined (EV_NSIG)	210	#if defined (EV_NSIG)
…		…
205	#elif defined (MAXSIG)	222	#elif defined (MAXSIG)
206	# define EV_NSIG (MAXSIG+1)	223	# define EV_NSIG (MAXSIG+1)
207	#elif defined (MAX_SIG)	224	#elif defined (MAX_SIG)
208	# define EV_NSIG (MAX_SIG+1)	225	# define EV_NSIG (MAX_SIG+1)
209	#elif defined (SIGARRAYSIZE)	226	#elif defined (SIGARRAYSIZE)
210	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */	227	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
211	#elif defined (_sys_nsig)	228	#elif defined (_sys_nsig)
212	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	229	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
213	#else	230	#else
214	# error "unable to find value for NSIG, please report"	231	# error "unable to find value for NSIG, please report"
215	/* 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! :) */
216	# define EV_NSIG 65	234	# define EV_NSIG 65
217	#endif	235	#endif
218		236
219	#ifndef EV_USE_CLOCK_SYSCALL	237	#ifndef EV_USE_CLOCK_SYSCALL
220	# if __linux && __GLIBC__ >= 2	238	# if __linux && __GLIBC__ >= 2
221	# define EV_USE_CLOCK_SYSCALL 1	239	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
222	# else	240	# else
223	# define EV_USE_CLOCK_SYSCALL 0	241	# define EV_USE_CLOCK_SYSCALL 0
224	# endif	242	# endif
225	#endif	243	#endif
226		244
227	#ifndef EV_USE_MONOTONIC	245	#ifndef EV_USE_MONOTONIC
228	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	246	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
229	# define EV_USE_MONOTONIC 1	247	# define EV_USE_MONOTONIC EV_FEATURE_OS
230	# else	248	# else
231	# define EV_USE_MONOTONIC 0	249	# define EV_USE_MONOTONIC 0
232	# endif	250	# endif
233	#endif	251	#endif
234		252
…		…
236	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	254	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
237	#endif	255	#endif
238		256
239	#ifndef EV_USE_NANOSLEEP	257	#ifndef EV_USE_NANOSLEEP
240	# if _POSIX_C_SOURCE >= 199309L	258	# if _POSIX_C_SOURCE >= 199309L
241	# define EV_USE_NANOSLEEP 1	259	# define EV_USE_NANOSLEEP EV_FEATURE_OS
242	# else	260	# else
243	# define EV_USE_NANOSLEEP 0	261	# define EV_USE_NANOSLEEP 0
244	# endif	262	# endif
245	#endif	263	#endif
246		264
247	#ifndef EV_USE_SELECT	265	#ifndef EV_USE_SELECT
248	# define EV_USE_SELECT 1	266	# define EV_USE_SELECT EV_FEATURE_BACKENDS
249	#endif	267	#endif
250		268
251	#ifndef EV_USE_POLL	269	#ifndef EV_USE_POLL
252	# ifdef _WIN32	270	# ifdef _WIN32
253	# define EV_USE_POLL 0	271	# define EV_USE_POLL 0
254	# else	272	# else
255	# define EV_USE_POLL 1	273	# define EV_USE_POLL EV_FEATURE_BACKENDS
256	# endif	274	# endif
257	#endif	275	#endif
258		276
259	#ifndef EV_USE_EPOLL	277	#ifndef EV_USE_EPOLL
260	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	278	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
261	# define EV_USE_EPOLL 1	279	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
262	# else	280	# else
263	# define EV_USE_EPOLL 0	281	# define EV_USE_EPOLL 0
264	# endif	282	# endif
265	#endif	283	#endif
266		284
…		…
272	# define EV_USE_PORT 0	290	# define EV_USE_PORT 0
273	#endif	291	#endif
274		292
275	#ifndef EV_USE_INOTIFY	293	#ifndef EV_USE_INOTIFY
276	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	294	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
277	# define EV_USE_INOTIFY 1	295	# define EV_USE_INOTIFY EV_FEATURE_OS
278	# else	296	# else
279	# define EV_USE_INOTIFY 0	297	# define EV_USE_INOTIFY 0
280	# endif	298	# endif
281	#endif	299	#endif
282		300
283	#ifndef EV_PID_HASHSIZE	301	#ifndef EV_PID_HASHSIZE
284	# if EV_MINIMAL	302	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
285	# define EV_PID_HASHSIZE 1
286	# else
287	# define EV_PID_HASHSIZE 16
288	# endif
289	#endif	303	#endif
290		304
291	#ifndef EV_INOTIFY_HASHSIZE	305	#ifndef EV_INOTIFY_HASHSIZE
292	# if EV_MINIMAL	306	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
293	# define EV_INOTIFY_HASHSIZE 1
294	# else
295	# define EV_INOTIFY_HASHSIZE 16
296	# endif
297	#endif	307	#endif
298		308
299	#ifndef EV_USE_EVENTFD	309	#ifndef EV_USE_EVENTFD
300	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	310	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
301	# define EV_USE_EVENTFD 1	311	# define EV_USE_EVENTFD EV_FEATURE_OS
302	# else	312	# else
303	# define EV_USE_EVENTFD 0	313	# define EV_USE_EVENTFD 0
304	# endif	314	# endif
305	#endif	315	#endif
306		316
307	#ifndef EV_USE_SIGNALFD	317	#ifndef EV_USE_SIGNALFD
308	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	318	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
309	# define EV_USE_SIGNALFD 1	319	# define EV_USE_SIGNALFD EV_FEATURE_OS
310	# else	320	# else
311	# define EV_USE_SIGNALFD 0	321	# define EV_USE_SIGNALFD 0
312	# endif	322	# endif
313	#endif	323	#endif
314		324
…		…
317	# define EV_USE_4HEAP 1	327	# define EV_USE_4HEAP 1
318	# define EV_HEAP_CACHE_AT 1	328	# define EV_HEAP_CACHE_AT 1
319	#endif	329	#endif
320		330
321	#ifndef EV_VERIFY	331	#ifndef EV_VERIFY
322	# define EV_VERIFY !EV_MINIMAL	332	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
323	#endif	333	#endif
324		334
325	#ifndef EV_USE_4HEAP	335	#ifndef EV_USE_4HEAP
326	# define EV_USE_4HEAP !EV_MINIMAL	336	# define EV_USE_4HEAP EV_FEATURE_DATA
327	#endif	337	#endif
328		338
329	#ifndef EV_HEAP_CACHE_AT	339	#ifndef EV_HEAP_CACHE_AT
330	# define EV_HEAP_CACHE_AT !EV_MINIMAL	340	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
331	#endif	341	#endif
332		342
333	/* 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, */
334	/* which makes programs even slower. might work on other unices, too. */	344	/* which makes programs even slower. might work on other unices, too. */
335	#if EV_USE_CLOCK_SYSCALL	345	#if EV_USE_CLOCK_SYSCALL
…		…
372	# include <sys/select.h>	382	# include <sys/select.h>
373	# endif	383	# endif
374	#endif	384	#endif
375		385
376	#if EV_USE_INOTIFY	386	#if EV_USE_INOTIFY
377	# include <sys/utsname.h>
378	# include <sys/statfs.h>	387	# include <sys/statfs.h>
379	# include <sys/inotify.h>	388	# include <sys/inotify.h>
380	/* 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 */
381	# ifndef IN_DONT_FOLLOW	390	# ifndef IN_DONT_FOLLOW
382	# undef EV_USE_INOTIFY	391	# undef EV_USE_INOTIFY
…		…
399	# define EFD_CLOEXEC O_CLOEXEC	408	# define EFD_CLOEXEC O_CLOEXEC
400	# else	409	# else
401	# define EFD_CLOEXEC 02000000	410	# define EFD_CLOEXEC 02000000
402	# endif	411	# endif
403	# endif	412	# endif
404	# ifdef __cplusplus
405	extern "C" {
406	# endif
407	int eventfd (unsigned int initval, int flags);	413	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
408	# ifdef __cplusplus
409	}
410	# endif
411	#endif	414	#endif
412		415
413	#if EV_USE_SIGNALFD	416	#if EV_USE_SIGNALFD
414	/* 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 */
415	# include <stdint.h>	418	# include <stdint.h>
…		…
421	# define SFD_CLOEXEC O_CLOEXEC	424	# define SFD_CLOEXEC O_CLOEXEC
422	# else	425	# else
423	# define SFD_CLOEXEC 02000000	426	# define SFD_CLOEXEC 02000000
424	# endif	427	# endif
425	# endif	428	# endif
426	# ifdef __cplusplus
427	extern "C" {
428	# endif
429	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);
430		430
431	struct signalfd_siginfo	431	struct signalfd_siginfo
432	{	432	{
433	uint32_t ssi_signo;	433	uint32_t ssi_signo;
434	char pad[128 - sizeof (uint32_t)];	434	char pad[128 - sizeof (uint32_t)];
435	};	435	};
436	# ifdef __cplusplus
437	}
438	# endif	436	#endif
439	#endif
440
441		437
442	/**/	438	/**/
443		439
444	#if EV_VERIFY >= 3	440	#if EV_VERIFY >= 3
445	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	441	# define EV_FREQUENT_CHECK ev_verify (EV_A)
446	#else	442	#else
447	# define EV_FREQUENT_CHECK do { } while (0)	443	# define EV_FREQUENT_CHECK do { } while (0)
448	#endif	444	#endif
449		445
450	/*	446	/*
…		…
458	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	454	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
459		455
460	#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) */
461	#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) */
462		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)
		461
463	#if __GNUC__ >= 4	462	#if __GNUC__ >= 4
464	# define expect(expr,value) __builtin_expect ((expr),(value))	463	# define expect(expr,value) __builtin_expect ((expr),(value))
465	# define noinline __attribute__ ((noinline))	464	# define noinline __attribute__ ((noinline))
466	#else	465	#else
467	# define expect(expr,value) (expr)	466	# define expect(expr,value) (expr)
…		…
473		472
474	#define expect_false(expr) expect ((expr) != 0, 0)	473	#define expect_false(expr) expect ((expr) != 0, 0)
475	#define expect_true(expr) expect ((expr) != 0, 1)	474	#define expect_true(expr) expect ((expr) != 0, 1)
476	#define inline_size static inline	475	#define inline_size static inline
477		476
478	#if EV_MINIMAL	477	#if EV_FEATURE_CODE
		478	# define inline_speed static inline
		479	#else
479	# define inline_speed static noinline	480	# define inline_speed static noinline
480	#else
481	# define inline_speed static inline
482	#endif	481	#endif
483		482
484	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	483	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
485		484
486	#if EV_MINPRI == EV_MAXPRI	485	#if EV_MINPRI == EV_MAXPRI
…		…
499	#define ev_active(w) ((W)(w))->active	498	#define ev_active(w) ((W)(w))->active
500	#define ev_at(w) ((WT)(w))->at	499	#define ev_at(w) ((WT)(w))->at
501		500
502	#if EV_USE_REALTIME	501	#if EV_USE_REALTIME
503	/* 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 */
504	/* giving it a reasonably high chance of working on typical architetcures */	503	/* giving it a reasonably high chance of working on typical architectures */
505	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? */
506	#endif	505	#endif
507		506
508	#if EV_USE_MONOTONIC	507	#if EV_USE_MONOTONIC
509	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? */
…		…
522	#ifdef _WIN32	521	#ifdef _WIN32
523	# include "ev_win32.c"	522	# include "ev_win32.c"
524	#endif	523	#endif
525		524
526	/*****************************************************************************/	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	struct utsname buf;
		536	unsigned int v;
		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
527		576
528	static void (*syserr_cb)(const char *msg);	577	static void (*syserr_cb)(const char *msg);
529		578
530	void	579	void
531	ev_set_syserr_cb (void (*cb)(const char *msg))	580	ev_set_syserr_cb (void (*cb)(const char *msg))
…		…
541		590
542	if (syserr_cb)	591	if (syserr_cb)
543	syserr_cb (msg);	592	syserr_cb (msg);
544	else	593	else
545	{	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
546	perror (msg);	603	perror (msg);
		604	#endif
547	abort ();	605	abort ();
548	}	606	}
549	}	607	}
550		608
551	static void *	609	static void *
552	ev_realloc_emul (void *ptr, long size)	610	ev_realloc_emul (void *ptr, long size)
553	{	611	{
		612	#if __GLIBC__
		613	return realloc (ptr, size);
		614	#else
554	/* some systems, notably openbsd and darwin, fail to properly	615	/* some systems, notably openbsd and darwin, fail to properly
555	* 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
556	* the single unix specification, so work around them here.	617	* the single unix specification, so work around them here.
557	*/	618	*/
558		619
559	if (size)	620	if (size)
560	return realloc (ptr, size);	621	return realloc (ptr, size);
561		622
562	free (ptr);	623	free (ptr);
563	return 0;	624	return 0;
		625	#endif
564	}	626	}
565		627
566	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	628	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
567		629
568	void	630	void
…		…
576	{	638	{
577	ptr = alloc (ptr, size);	639	ptr = alloc (ptr, size);
578		640
579	if (!ptr && size)	641	if (!ptr && size)
580	{	642	{
		643	#if EV_AVOID_STDIO
		644	ev_printerr ("libev: memory allocation failed, aborting.\n");
		645	#else
581	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	646	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		647	#endif
582	abort ();	648	abort ();
583	}	649	}
584		650
585	return ptr;	651	return ptr;
586	}	652	}
…		…
668		734
669	static int ev_default_loop_ptr;	735	static int ev_default_loop_ptr;
670		736
671	#endif	737	#endif
672		738
673	#if EV_MINIMAL < 2	739	#if EV_FEATURE_API
674	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	740	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
675	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	741	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
676	# define EV_INVOKE_PENDING invoke_cb (EV_A)	742	# define EV_INVOKE_PENDING invoke_cb (EV_A)
677	#else	743	#else
678	# define EV_RELEASE_CB (void)0	744	# define EV_RELEASE_CB (void)0
679	# define EV_ACQUIRE_CB (void)0	745	# define EV_ACQUIRE_CB (void)0
680	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	746	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
681	#endif	747	#endif
682		748
683	#define EVUNLOOP_RECURSE 0x80	749	#define EVBREAK_RECURSE 0x80
684		750
685	/*****************************************************************************/	751	/*****************************************************************************/
686		752
687	#ifndef EV_HAVE_EV_TIME	753	#ifndef EV_HAVE_EV_TIME
688	ev_tstamp	754	ev_tstamp
…		…
732	if (delay > 0.)	798	if (delay > 0.)
733	{	799	{
734	#if EV_USE_NANOSLEEP	800	#if EV_USE_NANOSLEEP
735	struct timespec ts;	801	struct timespec ts;
736		802
737	ts.tv_sec = (time_t)delay;	803	EV_TS_SET (ts, delay);
738	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
739
740	nanosleep (&ts, 0);	804	nanosleep (&ts, 0);
741	#elif defined(_WIN32)	805	#elif defined(_WIN32)
742	Sleep ((unsigned long)(delay * 1e3));	806	Sleep ((unsigned long)(delay * 1e3));
743	#else	807	#else
744	struct timeval tv;	808	struct timeval tv;
745		809
746	tv.tv_sec = (time_t)delay;
747	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
748
749	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	810	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
750	/* something not guaranteed by newer posix versions, but guaranteed */	811	/* something not guaranteed by newer posix versions, but guaranteed */
751	/* by older ones */	812	/* by older ones */
		813	EV_TV_SET (tv, delay);
752	select (0, 0, 0, 0, &tv);	814	select (0, 0, 0, 0, &tv);
753	#endif	815	#endif
754	}	816	}
755	}	817	}
756		818
757	/*****************************************************************************/	819	/*****************************************************************************/
758		820
759	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	821	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
760		822
761	/* find a suitable new size for the given array, */	823	/* find a suitable new size for the given array, */
762	/* hopefully by rounding to a ncie-to-malloc size */	824	/* hopefully by rounding to a nice-to-malloc size */
763	inline_size int	825	inline_size int
764	array_nextsize (int elem, int cur, int cnt)	826	array_nextsize (int elem, int cur, int cnt)
765	{	827	{
766	int ncur = cur + 1;	828	int ncur = cur + 1;
767		829
…		…
863	}	925	}
864		926
865	/*****************************************************************************/	927	/*****************************************************************************/
866		928
867	inline_speed void	929	inline_speed void
868	fd_event_nc (EV_P_ int fd, int revents)	930	fd_event_nocheck (EV_P_ int fd, int revents)
869	{	931	{
870	ANFD *anfd = anfds + fd;	932	ANFD *anfd = anfds + fd;
871	ev_io *w;	933	ev_io *w;
872		934
873	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	935	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
885	fd_event (EV_P_ int fd, int revents)	947	fd_event (EV_P_ int fd, int revents)
886	{	948	{
887	ANFD *anfd = anfds + fd;	949	ANFD *anfd = anfds + fd;
888		950
889	if (expect_true (!anfd->reify))	951	if (expect_true (!anfd->reify))
890	fd_event_nc (EV_A_ fd, revents);	952	fd_event_nocheck (EV_A_ fd, revents);
891	}	953	}
892		954
893	void	955	void
894	ev_feed_fd_event (EV_P_ int fd, int revents)	956	ev_feed_fd_event (EV_P_ int fd, int revents)
895	{	957	{
896	if (fd >= 0 && fd < anfdmax)	958	if (fd >= 0 && fd < anfdmax)
897	fd_event_nc (EV_A_ fd, revents);	959	fd_event_nocheck (EV_A_ fd, revents);
898	}	960	}
899		961
900	/* make sure the external fd watch events are in-sync */	962	/* make sure the external fd watch events are in-sync */
901	/* with the kernel/libev internal state */	963	/* with the kernel/libev internal state */
902	inline_size void	964	inline_size void
…		…
908	{	970	{
909	int fd = fdchanges [i];	971	int fd = fdchanges [i];
910	ANFD *anfd = anfds + fd;	972	ANFD *anfd = anfds + fd;
911	ev_io *w;	973	ev_io *w;
912		974
913	unsigned char events = 0;	975	unsigned char o_events = anfd->events;
		976	unsigned char o_reify = anfd->reify;
914		977
915	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	978	anfd->reify = 0;
916	events |= (unsigned char)w->events;
917		979
918	#if EV_SELECT_IS_WINSOCKET	980	#if EV_SELECT_IS_WINSOCKET
919	if (events)	981	if (o_reify & EV__IOFDSET)
920	{	982	{
921	unsigned long arg;	983	unsigned long arg;
922	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	984	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
923	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	985	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
924	}	986	}
925	#endif	987	#endif
926		988
		989	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
927	{	990	{
928	unsigned char o_events = anfd->events;
929	unsigned char o_reify = anfd->reify;
930
931	anfd->reify = 0;
932	anfd->events = events;	991	anfd->events = 0;
933		992
934	if (o_events != events || o_reify & EV__IOFDSET)	993	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
		994	anfd->events |= (unsigned char)w->events;
		995
		996	if (o_events != anfd->events)
		997	o_reify = EV__IOFDSET; /* actually |= */
		998	}
		999
		1000	if (o_reify & EV__IOFDSET)
935	backend_modify (EV_A_ fd, o_events, events);	1001	backend_modify (EV_A_ fd, o_events, anfd->events);
936	}
937	}	1002	}
938		1003
939	fdchangecnt = 0;	1004	fdchangecnt = 0;
940	}	1005	}
941		1006
…		…
965	ev_io_stop (EV_A_ w);	1030	ev_io_stop (EV_A_ w);
966	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1031	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
967	}	1032	}
968	}	1033	}
969		1034
970	/* check whether the given fd is atcually valid, for error recovery */	1035	/* check whether the given fd is actually valid, for error recovery */
971	inline_size int	1036	inline_size int
972	fd_valid (int fd)	1037	fd_valid (int fd)
973	{	1038	{
974	#ifdef _WIN32	1039	#ifdef _WIN32
975	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1040	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
…		…
1017	anfds [fd].emask = 0;	1082	anfds [fd].emask = 0;
1018	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);	1083	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1019	}	1084	}
1020	}	1085	}
1021		1086
		1087	/* used to prepare libev internal fd's */
		1088	/* this is not fork-safe */
		1089	inline_speed void
		1090	fd_intern (int fd)
		1091	{
		1092	#ifdef _WIN32
		1093	unsigned long arg = 1;
		1094	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1095	#else
		1096	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1097	fcntl (fd, F_SETFL, O_NONBLOCK);
		1098	#endif
		1099	}
		1100
1022	/*****************************************************************************/	1101	/*****************************************************************************/
1023		1102
1024	/*	1103	/*
1025	* the heap functions want a real array index. array index 0 uis guaranteed to not	1104	* the heap functions want a real array index. array index 0 is guaranteed to not
1026	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives	1105	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1027	* the branching factor of the d-tree.	1106	* the branching factor of the d-tree.
1028	*/	1107	*/
1029		1108
1030	/*	1109	/*
…		…
1178		1257
1179	static ANSIG signals [EV_NSIG - 1];	1258	static ANSIG signals [EV_NSIG - 1];
1180		1259
1181	/*****************************************************************************/	1260	/*****************************************************************************/
1182		1261
1183	/* used to prepare libev internal fd's */	1262	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1184	/* this is not fork-safe */
1185	inline_speed void
1186	fd_intern (int fd)
1187	{
1188	#ifdef _WIN32
1189	unsigned long arg = 1;
1190	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1191	#else
1192	fcntl (fd, F_SETFD, FD_CLOEXEC);
1193	fcntl (fd, F_SETFL, O_NONBLOCK);
1194	#endif
1195	}
1196		1263
1197	static void noinline	1264	static void noinline
1198	evpipe_init (EV_P)	1265	evpipe_init (EV_P)
1199	{	1266	{
1200	if (!ev_is_active (&pipe_w))	1267	if (!ev_is_active (&pipe_w))
1201	{	1268	{
1202	#if EV_USE_EVENTFD	1269	# if EV_USE_EVENTFD
1203	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1270	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1204	if (evfd < 0 && errno == EINVAL)	1271	if (evfd < 0 && errno == EINVAL)
1205	evfd = eventfd (0, 0);	1272	evfd = eventfd (0, 0);
1206		1273
1207	if (evfd >= 0)	1274	if (evfd >= 0)
…		…
1209	evpipe [0] = -1;	1276	evpipe [0] = -1;
1210	fd_intern (evfd); /* doing it twice doesn't hurt */	1277	fd_intern (evfd); /* doing it twice doesn't hurt */
1211	ev_io_set (&pipe_w, evfd, EV_READ);	1278	ev_io_set (&pipe_w, evfd, EV_READ);
1212	}	1279	}
1213	else	1280	else
1214	#endif	1281	# endif
1215	{	1282	{
1216	while (pipe (evpipe))	1283	while (pipe (evpipe))
1217	ev_syserr ("(libev) error creating signal/async pipe");	1284	ev_syserr ("(libev) error creating signal/async pipe");
1218		1285
1219	fd_intern (evpipe [0]);	1286	fd_intern (evpipe [0]);
…		…
1230	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1297	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1231	{	1298	{
1232	if (!*flag)	1299	if (!*flag)
1233	{	1300	{
1234	int old_errno = errno; /* save errno because write might clobber it */	1301	int old_errno = errno; /* save errno because write might clobber it */
		1302	char dummy;
1235		1303
1236	*flag = 1;	1304	*flag = 1;
1237		1305
1238	#if EV_USE_EVENTFD	1306	#if EV_USE_EVENTFD
1239	if (evfd >= 0)	1307	if (evfd >= 0)
…		…
1241	uint64_t counter = 1;	1309	uint64_t counter = 1;
1242	write (evfd, &counter, sizeof (uint64_t));	1310	write (evfd, &counter, sizeof (uint64_t));
1243	}	1311	}
1244	else	1312	else
1245	#endif	1313	#endif
		1314	/* win32 people keep sending patches that change this write() to send() */
		1315	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1316	/* so when you think this write should be a send instead, please find out */
		1317	/* where your send() is from - it's definitely not the microsoft send, and */
		1318	/* tell me. thank you. */
1246	write (evpipe [1], &old_errno, 1);	1319	write (evpipe [1], &dummy, 1);
1247		1320
1248	errno = old_errno;	1321	errno = old_errno;
1249	}	1322	}
1250	}	1323	}
1251		1324
…		…
1264	}	1337	}
1265	else	1338	else
1266	#endif	1339	#endif
1267	{	1340	{
1268	char dummy;	1341	char dummy;
		1342	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1269	read (evpipe [0], &dummy, 1);	1343	read (evpipe [0], &dummy, 1);
1270	}	1344	}
1271		1345
1272	if (sig_pending)	1346	if (sig_pending)
1273	{	1347	{
…		…
1352	break;	1426	break;
1353	}	1427	}
1354	}	1428	}
1355	#endif	1429	#endif
1356		1430
		1431	#endif
		1432
1357	/*****************************************************************************/	1433	/*****************************************************************************/
1358		1434
		1435	#if EV_CHILD_ENABLE
1359	static WL childs [EV_PID_HASHSIZE];	1436	static WL childs [EV_PID_HASHSIZE];
1360
1361	#ifndef _WIN32
1362		1437
1363	static ev_signal childev;	1438	static ev_signal childev;
1364		1439
1365	#ifndef WIFCONTINUED	1440	#ifndef WIFCONTINUED
1366	# define WIFCONTINUED(status) 0	1441	# define WIFCONTINUED(status) 0
…		…
1371	child_reap (EV_P_ int chain, int pid, int status)	1446	child_reap (EV_P_ int chain, int pid, int status)
1372	{	1447	{
1373	ev_child *w;	1448	ev_child *w;
1374	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1449	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1375		1450
1376	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1451	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1377	{	1452	{
1378	if ((w->pid == pid || !w->pid)	1453	if ((w->pid == pid || !w->pid)
1379	&& (!traced || (w->flags & 1)))	1454	&& (!traced || (w->flags & 1)))
1380	{	1455	{
1381	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1456	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
…		…
1406	/* make sure we are called again until all children have been reaped */	1481	/* make sure we are called again until all children have been reaped */
1407	/* we need to do it this way so that the callback gets called before we continue */	1482	/* we need to do it this way so that the callback gets called before we continue */
1408	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1483	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1409		1484
1410	child_reap (EV_A_ pid, pid, status);	1485	child_reap (EV_A_ pid, pid, status);
1411	if (EV_PID_HASHSIZE > 1)	1486	if ((EV_PID_HASHSIZE) > 1)
1412	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1487	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1413	}	1488	}
1414		1489
1415	#endif	1490	#endif
1416		1491
…		…
1483	#ifdef __APPLE__	1558	#ifdef __APPLE__
1484	/* only select works correctly on that "unix-certified" platform */	1559	/* only select works correctly on that "unix-certified" platform */
1485	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1560	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1486	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1561	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1487	#endif	1562	#endif
		1563	#ifdef __FreeBSD__
		1564	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1565	#endif
1488		1566
1489	return flags;	1567	return flags;
1490	}	1568	}
1491		1569
1492	unsigned int	1570	unsigned int
1493	ev_embeddable_backends (void)	1571	ev_embeddable_backends (void)
1494	{	1572	{
1495	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	1573	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1496		1574
1497	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	1575	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1498	/* please fix it and tell me how to detect the fix */	1576	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1499	flags &= ~EVBACKEND_EPOLL;	1577	flags &= ~EVBACKEND_EPOLL;
1500		1578
1501	return flags;	1579	return flags;
1502	}	1580	}
1503		1581
1504	unsigned int	1582	unsigned int
1505	ev_backend (EV_P)	1583	ev_backend (EV_P)
1506	{	1584	{
1507	return backend;	1585	return backend;
1508	}	1586	}
1509		1587
1510	#if EV_MINIMAL < 2	1588	#if EV_FEATURE_API
1511	unsigned int	1589	unsigned int
1512	ev_loop_count (EV_P)	1590	ev_iteration (EV_P)
1513	{	1591	{
1514	return loop_count;	1592	return loop_count;
1515	}	1593	}
1516		1594
1517	unsigned int	1595	unsigned int
1518	ev_loop_depth (EV_P)	1596	ev_depth (EV_P)
1519	{	1597	{
1520	return loop_depth;	1598	return loop_depth;
1521	}	1599	}
1522		1600
1523	void	1601	void
…		…
1595		1673
1596	ev_rt_now = ev_time ();	1674	ev_rt_now = ev_time ();
1597	mn_now = get_clock ();	1675	mn_now = get_clock ();
1598	now_floor = mn_now;	1676	now_floor = mn_now;
1599	rtmn_diff = ev_rt_now - mn_now;	1677	rtmn_diff = ev_rt_now - mn_now;
1600	#if EV_MINIMAL < 2	1678	#if EV_FEATURE_API
1601	invoke_cb = ev_invoke_pending;	1679	invoke_cb = ev_invoke_pending;
1602	#endif	1680	#endif
1603		1681
1604	io_blocktime = 0.;	1682	io_blocktime = 0.;
1605	timeout_blocktime = 0.;	1683	timeout_blocktime = 0.;
…		…
1635	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1713	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1636	#endif	1714	#endif
1637		1715
1638	ev_prepare_init (&pending_w, pendingcb);	1716	ev_prepare_init (&pending_w, pendingcb);
1639		1717
		1718	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1640	ev_init (&pipe_w, pipecb);	1719	ev_init (&pipe_w, pipecb);
1641	ev_set_priority (&pipe_w, EV_MAXPRI);	1720	ev_set_priority (&pipe_w, EV_MAXPRI);
		1721	#endif
1642	}	1722	}
1643	}	1723	}
1644		1724
1645	/* free up a loop structure */	1725	/* free up a loop structure */
1646	static void noinline	1726	static void noinline
…		…
1764	{	1844	{
1765	EV_WIN32_CLOSE_FD (evpipe [0]);	1845	EV_WIN32_CLOSE_FD (evpipe [0]);
1766	EV_WIN32_CLOSE_FD (evpipe [1]);	1846	EV_WIN32_CLOSE_FD (evpipe [1]);
1767	}	1847	}
1768		1848
		1849	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1769	evpipe_init (EV_A);	1850	evpipe_init (EV_A);
1770	/* now iterate over everything, in case we missed something */	1851	/* now iterate over everything, in case we missed something */
1771	pipecb (EV_A_ &pipe_w, EV_READ);	1852	pipecb (EV_A_ &pipe_w, EV_READ);
		1853	#endif
1772	}	1854	}
1773		1855
1774	postfork = 0;	1856	postfork = 0;
1775	}	1857	}
1776		1858
…		…
1838	verify_watcher (EV_A_ ws [cnt]);	1920	verify_watcher (EV_A_ ws [cnt]);
1839	}	1921	}
1840	}	1922	}
1841	#endif	1923	#endif
1842		1924
1843	#if EV_MINIMAL < 2	1925	#if EV_FEATURE_API
1844	void	1926	void
1845	ev_loop_verify (EV_P)	1927	ev_verify (EV_P)
1846	{	1928	{
1847	#if EV_VERIFY	1929	#if EV_VERIFY
1848	int i;	1930	int i;
1849	WL w;	1931	WL w;
1850		1932
…		…
1889	#if EV_ASYNC_ENABLE	1971	#if EV_ASYNC_ENABLE
1890	assert (asyncmax >= asynccnt);	1972	assert (asyncmax >= asynccnt);
1891	array_verify (EV_A_ (W *)asyncs, asynccnt);	1973	array_verify (EV_A_ (W *)asyncs, asynccnt);
1892	#endif	1974	#endif
1893		1975
		1976	#if EV_PREPARE_ENABLE
1894	assert (preparemax >= preparecnt);	1977	assert (preparemax >= preparecnt);
1895	array_verify (EV_A_ (W *)prepares, preparecnt);	1978	array_verify (EV_A_ (W *)prepares, preparecnt);
		1979	#endif
1896		1980
		1981	#if EV_CHECK_ENABLE
1897	assert (checkmax >= checkcnt);	1982	assert (checkmax >= checkcnt);
1898	array_verify (EV_A_ (W *)checks, checkcnt);	1983	array_verify (EV_A_ (W *)checks, checkcnt);
		1984	#endif
1899		1985
1900	# if 0	1986	# if 0
		1987	#if EV_CHILD_ENABLE
1901	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1988	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1902	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	1989	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1990	#endif
1903	# endif	1991	# endif
1904	#endif	1992	#endif
1905	}	1993	}
1906	#endif	1994	#endif
1907		1995
…		…
1923		2011
1924	loop_init (EV_A_ flags);	2012	loop_init (EV_A_ flags);
1925		2013
1926	if (ev_backend (EV_A))	2014	if (ev_backend (EV_A))
1927	{	2015	{
1928	#ifndef _WIN32	2016	#if EV_CHILD_ENABLE
1929	ev_signal_init (&childev, childcb, SIGCHLD);	2017	ev_signal_init (&childev, childcb, SIGCHLD);
1930	ev_set_priority (&childev, EV_MAXPRI);	2018	ev_set_priority (&childev, EV_MAXPRI);
1931	ev_signal_start (EV_A_ &childev);	2019	ev_signal_start (EV_A_ &childev);
1932	ev_unref (EV_A); /* child watcher should not keep loop alive */	2020	ev_unref (EV_A); /* child watcher should not keep loop alive */
1933	#endif	2021	#endif
…		…
1946	EV_P = ev_default_loop_ptr;	2034	EV_P = ev_default_loop_ptr;
1947	#endif	2035	#endif
1948		2036
1949	ev_default_loop_ptr = 0;	2037	ev_default_loop_ptr = 0;
1950		2038
1951	#ifndef _WIN32	2039	#if EV_CHILD_ENABLE
1952	ev_ref (EV_A); /* child watcher */	2040	ev_ref (EV_A); /* child watcher */
1953	ev_signal_stop (EV_A_ &childev);	2041	ev_signal_stop (EV_A_ &childev);
1954	#endif	2042	#endif
1955		2043
1956	loop_destroy (EV_A);	2044	loop_destroy (EV_A);
…		…
2062	EV_FREQUENT_CHECK;	2150	EV_FREQUENT_CHECK;
2063	feed_reverse (EV_A_ (W)w);	2151	feed_reverse (EV_A_ (W)w);
2064	}	2152	}
2065	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2153	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2066		2154
2067	feed_reverse_done (EV_A_ EV_TIMEOUT);	2155	feed_reverse_done (EV_A_ EV_TIMER);
2068	}	2156	}
2069	}	2157	}
2070		2158
2071	#if EV_PERIODIC_ENABLE	2159	#if EV_PERIODIC_ENABLE
2072	/* make periodics pending */	2160	/* make periodics pending */
…		…
2125	feed_reverse_done (EV_A_ EV_PERIODIC);	2213	feed_reverse_done (EV_A_ EV_PERIODIC);
2126	}	2214	}
2127	}	2215	}
2128		2216
2129	/* simply recalculate all periodics */	2217	/* simply recalculate all periodics */
2130	/* TODO: maybe ensure that at leats one event happens when jumping forward? */	2218	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2131	static void noinline	2219	static void noinline
2132	periodics_reschedule (EV_P)	2220	periodics_reschedule (EV_P)
2133	{	2221	{
2134	int i;	2222	int i;
2135		2223
…		…
2231	mn_now = ev_rt_now;	2319	mn_now = ev_rt_now;
2232	}	2320	}
2233	}	2321	}
2234		2322
2235	void	2323	void
2236	ev_loop (EV_P_ int flags)	2324	ev_run (EV_P_ int flags)
2237	{	2325	{
2238	#if EV_MINIMAL < 2	2326	#if EV_FEATURE_API
2239	++loop_depth;	2327	++loop_depth;
2240	#endif	2328	#endif
2241		2329
2242	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2330	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2243		2331
2244	loop_done = EVUNLOOP_CANCEL;	2332	loop_done = EVBREAK_CANCEL;
2245		2333
2246	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2334	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2247		2335
2248	do	2336	do
2249	{	2337	{
2250	#if EV_VERIFY >= 2	2338	#if EV_VERIFY >= 2
2251	ev_loop_verify (EV_A);	2339	ev_verify (EV_A);
2252	#endif	2340	#endif
2253		2341
2254	#ifndef _WIN32	2342	#ifndef _WIN32
2255	if (expect_false (curpid)) /* penalise the forking check even more */	2343	if (expect_false (curpid)) /* penalise the forking check even more */
2256	if (expect_false (getpid () != curpid))	2344	if (expect_false (getpid () != curpid))
…		…
2268	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2356	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2269	EV_INVOKE_PENDING;	2357	EV_INVOKE_PENDING;
2270	}	2358	}
2271	#endif	2359	#endif
2272		2360
		2361	#if EV_PREPARE_ENABLE
2273	/* queue prepare watchers (and execute them) */	2362	/* queue prepare watchers (and execute them) */
2274	if (expect_false (preparecnt))	2363	if (expect_false (preparecnt))
2275	{	2364	{
2276	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2365	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2277	EV_INVOKE_PENDING;	2366	EV_INVOKE_PENDING;
2278	}	2367	}
		2368	#endif
2279		2369
2280	if (expect_false (loop_done))	2370	if (expect_false (loop_done))
2281	break;	2371	break;
2282		2372
2283	/* we might have forked, so reify kernel state if necessary */	2373	/* we might have forked, so reify kernel state if necessary */
…		…
2290	/* calculate blocking time */	2380	/* calculate blocking time */
2291	{	2381	{
2292	ev_tstamp waittime = 0.;	2382	ev_tstamp waittime = 0.;
2293	ev_tstamp sleeptime = 0.;	2383	ev_tstamp sleeptime = 0.;
2294		2384
		2385	/* remember old timestamp for io_blocktime calculation */
		2386	ev_tstamp prev_mn_now = mn_now;
		2387
		2388	/* update time to cancel out callback processing overhead */
		2389	time_update (EV_A_ 1e100);
		2390
2295	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2391	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2296	{	2392	{
2297	/* remember old timestamp for io_blocktime calculation */
2298	ev_tstamp prev_mn_now = mn_now;
2299
2300	/* update time to cancel out callback processing overhead */
2301	time_update (EV_A_ 1e100);
2302
2303	waittime = MAX_BLOCKTIME;	2393	waittime = MAX_BLOCKTIME;
2304		2394
2305	if (timercnt)	2395	if (timercnt)
2306	{	2396	{
2307	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2397	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
…		…
2334	waittime -= sleeptime;	2424	waittime -= sleeptime;
2335	}	2425	}
2336	}	2426	}
2337	}	2427	}
2338		2428
2339	#if EV_MINIMAL < 2	2429	#if EV_FEATURE_API
2340	++loop_count;	2430	++loop_count;
2341	#endif	2431	#endif
2342	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2432	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2343	backend_poll (EV_A_ waittime);	2433	backend_poll (EV_A_ waittime);
2344	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2434	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2345		2435
2346	/* update ev_rt_now, do magic */	2436	/* update ev_rt_now, do magic */
2347	time_update (EV_A_ waittime + sleeptime);	2437	time_update (EV_A_ waittime + sleeptime);
2348	}	2438	}
2349		2439
…		…
2356	#if EV_IDLE_ENABLE	2446	#if EV_IDLE_ENABLE
2357	/* queue idle watchers unless other events are pending */	2447	/* queue idle watchers unless other events are pending */
2358	idle_reify (EV_A);	2448	idle_reify (EV_A);
2359	#endif	2449	#endif
2360		2450
		2451	#if EV_CHECK_ENABLE
2361	/* queue check watchers, to be executed first */	2452	/* queue check watchers, to be executed first */
2362	if (expect_false (checkcnt))	2453	if (expect_false (checkcnt))
2363	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2454	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2455	#endif
2364		2456
2365	EV_INVOKE_PENDING;	2457	EV_INVOKE_PENDING;
2366	}	2458	}
2367	while (expect_true (	2459	while (expect_true (
2368	activecnt	2460	activecnt
2369	&& !loop_done	2461	&& !loop_done
2370	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2462	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2371	));	2463	));
2372		2464
2373	if (loop_done == EVUNLOOP_ONE)	2465	if (loop_done == EVBREAK_ONE)
2374	loop_done = EVUNLOOP_CANCEL;	2466	loop_done = EVBREAK_CANCEL;
2375		2467
2376	#if EV_MINIMAL < 2	2468	#if EV_FEATURE_API
2377	--loop_depth;	2469	--loop_depth;
2378	#endif	2470	#endif
2379	}	2471	}
2380		2472
2381	void	2473	void
2382	ev_unloop (EV_P_ int how)	2474	ev_break (EV_P_ int how)
2383	{	2475	{
2384	loop_done = how;	2476	loop_done = how;
2385	}	2477	}
2386		2478
2387	void	2479	void
…		…
2507		2599
2508	if (expect_false (ev_is_active (w)))	2600	if (expect_false (ev_is_active (w)))
2509	return;	2601	return;
2510		2602
2511	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2603	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2512	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2604	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2513		2605
2514	EV_FREQUENT_CHECK;	2606	EV_FREQUENT_CHECK;
2515		2607
2516	ev_start (EV_A_ (W)w, 1);	2608	ev_start (EV_A_ (W)w, 1);
2517	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2609	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2535	EV_FREQUENT_CHECK;	2627	EV_FREQUENT_CHECK;
2536		2628
2537	wlist_del (&anfds[w->fd].head, (WL)w);	2629	wlist_del (&anfds[w->fd].head, (WL)w);
2538	ev_stop (EV_A_ (W)w);	2630	ev_stop (EV_A_ (W)w);
2539		2631
2540	fd_change (EV_A_ w->fd, 1);	2632	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2541		2633
2542	EV_FREQUENT_CHECK;	2634	EV_FREQUENT_CHECK;
2543	}	2635	}
2544		2636
2545	void noinline	2637	void noinline
…		…
2587	timers [active] = timers [timercnt + HEAP0];	2679	timers [active] = timers [timercnt + HEAP0];
2588	adjustheap (timers, timercnt, active);	2680	adjustheap (timers, timercnt, active);
2589	}	2681	}
2590	}	2682	}
2591		2683
2592	EV_FREQUENT_CHECK;
2593
2594	ev_at (w) -= mn_now;	2684	ev_at (w) -= mn_now;
2595		2685
2596	ev_stop (EV_A_ (W)w);	2686	ev_stop (EV_A_ (W)w);
		2687
		2688	EV_FREQUENT_CHECK;
2597	}	2689	}
2598		2690
2599	void noinline	2691	void noinline
2600	ev_timer_again (EV_P_ ev_timer *w)	2692	ev_timer_again (EV_P_ ev_timer *w)
2601	{	2693	{
…		…
2680	periodics [active] = periodics [periodiccnt + HEAP0];	2772	periodics [active] = periodics [periodiccnt + HEAP0];
2681	adjustheap (periodics, periodiccnt, active);	2773	adjustheap (periodics, periodiccnt, active);
2682	}	2774	}
2683	}	2775	}
2684		2776
2685	EV_FREQUENT_CHECK;
2686
2687	ev_stop (EV_A_ (W)w);	2777	ev_stop (EV_A_ (W)w);
		2778
		2779	EV_FREQUENT_CHECK;
2688	}	2780	}
2689		2781
2690	void noinline	2782	void noinline
2691	ev_periodic_again (EV_P_ ev_periodic *w)	2783	ev_periodic_again (EV_P_ ev_periodic *w)
2692	{	2784	{
…		…
2697	#endif	2789	#endif
2698		2790
2699	#ifndef SA_RESTART	2791	#ifndef SA_RESTART
2700	# define SA_RESTART 0	2792	# define SA_RESTART 0
2701	#endif	2793	#endif
		2794
		2795	#if EV_SIGNAL_ENABLE
2702		2796
2703	void noinline	2797	void noinline
2704	ev_signal_start (EV_P_ ev_signal *w)	2798	ev_signal_start (EV_P_ ev_signal *w)
2705	{	2799	{
2706	if (expect_false (ev_is_active (w)))	2800	if (expect_false (ev_is_active (w)))
…		…
2813	}	2907	}
2814		2908
2815	EV_FREQUENT_CHECK;	2909	EV_FREQUENT_CHECK;
2816	}	2910	}
2817		2911
		2912	#endif
		2913
		2914	#if EV_CHILD_ENABLE
		2915
2818	void	2916	void
2819	ev_child_start (EV_P_ ev_child *w)	2917	ev_child_start (EV_P_ ev_child *w)
2820	{	2918	{
2821	#if EV_MULTIPLICITY	2919	#if EV_MULTIPLICITY
2822	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2920	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
…		…
2825	return;	2923	return;
2826		2924
2827	EV_FREQUENT_CHECK;	2925	EV_FREQUENT_CHECK;
2828		2926
2829	ev_start (EV_A_ (W)w, 1);	2927	ev_start (EV_A_ (W)w, 1);
2830	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2928	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2831		2929
2832	EV_FREQUENT_CHECK;	2930	EV_FREQUENT_CHECK;
2833	}	2931	}
2834		2932
2835	void	2933	void
…		…
2839	if (expect_false (!ev_is_active (w)))	2937	if (expect_false (!ev_is_active (w)))
2840	return;	2938	return;
2841		2939
2842	EV_FREQUENT_CHECK;	2940	EV_FREQUENT_CHECK;
2843		2941
2844	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2942	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845	ev_stop (EV_A_ (W)w);	2943	ev_stop (EV_A_ (W)w);
2846		2944
2847	EV_FREQUENT_CHECK;	2945	EV_FREQUENT_CHECK;
2848	}	2946	}
		2947
		2948	#endif
2849		2949
2850	#if EV_STAT_ENABLE	2950	#if EV_STAT_ENABLE
2851		2951
2852	# ifdef _WIN32	2952	# ifdef _WIN32
2853	# undef lstat	2953	# undef lstat
…		…
2859	#define MIN_STAT_INTERVAL 0.1074891	2959	#define MIN_STAT_INTERVAL 0.1074891
2860		2960
2861	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2961	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2862		2962
2863	#if EV_USE_INOTIFY	2963	#if EV_USE_INOTIFY
2864	# define EV_INOTIFY_BUFSIZE 8192	2964
		2965	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2966	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2865		2967
2866	static void noinline	2968	static void noinline
2867	infy_add (EV_P_ ev_stat *w)	2969	infy_add (EV_P_ ev_stat *w)
2868	{	2970	{
2869	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);	2971	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);
…		…
2918	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	3020	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2919	}	3021	}
2920	}	3022	}
2921		3023
2922	if (w->wd >= 0)	3024	if (w->wd >= 0)
2923	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3025	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2924		3026
2925	/* now re-arm timer, if required */	3027	/* now re-arm timer, if required */
2926	if (ev_is_active (&w->timer)) ev_ref (EV_A);	3028	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2927	ev_timer_again (EV_A_ &w->timer);	3029	ev_timer_again (EV_A_ &w->timer);
2928	if (ev_is_active (&w->timer)) ev_unref (EV_A);	3030	if (ev_is_active (&w->timer)) ev_unref (EV_A);
…		…
2936		3038
2937	if (wd < 0)	3039	if (wd < 0)
2938	return;	3040	return;
2939		3041
2940	w->wd = -2;	3042	w->wd = -2;
2941	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3043	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2942	wlist_del (&fs_hash [slot].head, (WL)w);	3044	wlist_del (&fs_hash [slot].head, (WL)w);
2943		3045
2944	/* remove this watcher, if others are watching it, they will rearm */	3046	/* remove this watcher, if others are watching it, they will rearm */
2945	inotify_rm_watch (fs_fd, wd);	3047	inotify_rm_watch (fs_fd, wd);
2946	}	3048	}
…		…
2948	static void noinline	3050	static void noinline
2949	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3051	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2950	{	3052	{
2951	if (slot < 0)	3053	if (slot < 0)
2952	/* overflow, need to check for all hash slots */	3054	/* overflow, need to check for all hash slots */
2953	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3055	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2954	infy_wd (EV_A_ slot, wd, ev);	3056	infy_wd (EV_A_ slot, wd, ev);
2955	else	3057	else
2956	{	3058	{
2957	WL w_;	3059	WL w_;
2958		3060
2959	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3061	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2960	{	3062	{
2961	ev_stat *w = (ev_stat *)w_;	3063	ev_stat *w = (ev_stat *)w_;
2962	w_ = w_->next; /* lets us remove this watcher and all before it */	3064	w_ = w_->next; /* lets us remove this watcher and all before it */
2963		3065
2964	if (w->wd == wd || wd == -1)	3066	if (w->wd == wd || wd == -1)
2965	{	3067	{
2966	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3068	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2967	{	3069	{
2968	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3070	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2969	w->wd = -1;	3071	w->wd = -1;
2970	infy_add (EV_A_ w); /* re-add, no matter what */	3072	infy_add (EV_A_ w); /* re-add, no matter what */
2971	}	3073	}
2972		3074
2973	stat_timer_cb (EV_A_ &w->timer, 0);	3075	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2978		3080
2979	static void	3081	static void
2980	infy_cb (EV_P_ ev_io *w, int revents)	3082	infy_cb (EV_P_ ev_io *w, int revents)
2981	{	3083	{
2982	char buf [EV_INOTIFY_BUFSIZE];	3084	char buf [EV_INOTIFY_BUFSIZE];
2983	struct inotify_event *ev = (struct inotify_event *)buf;
2984	int ofs;	3085	int ofs;
2985	int len = read (fs_fd, buf, sizeof (buf));	3086	int len = read (fs_fd, buf, sizeof (buf));
2986		3087
2987	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3088	for (ofs = 0; ofs < len; )
		3089	{
		3090	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2988	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3091	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3092	ofs += sizeof (struct inotify_event) + ev->len;
		3093	}
2989	}	3094	}
2990		3095
2991	inline_size void	3096	inline_size void
2992	check_2625 (EV_P)	3097	ev_check_2625 (EV_P)
2993	{	3098	{
2994	/* kernels < 2.6.25 are borked	3099	/* kernels < 2.6.25 are borked
2995	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3100	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2996	*/	3101	*/
2997	struct utsname buf;	3102	if (ev_linux_version () < 0x020619)
2998	int major, minor, micro;
2999
3000	if (uname (&buf))
3001	return;
3002
3003	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
3004	return;
3005
3006	if (major < 2
3007	|| (major == 2 && minor < 6)
3008	|| (major == 2 && minor == 6 && micro < 25))
3009	return;	3103	return;
3010		3104
3011	fs_2625 = 1;	3105	fs_2625 = 1;
3012	}	3106	}
3013		3107
…		…
3028	if (fs_fd != -2)	3122	if (fs_fd != -2)
3029	return;	3123	return;
3030		3124
3031	fs_fd = -1;	3125	fs_fd = -1;
3032		3126
3033	check_2625 (EV_A);	3127	ev_check_2625 (EV_A);
3034		3128
3035	fs_fd = infy_newfd ();	3129	fs_fd = infy_newfd ();
3036		3130
3037	if (fs_fd >= 0)	3131	if (fs_fd >= 0)
3038	{	3132	{
…		…
3063	ev_io_set (&fs_w, fs_fd, EV_READ);	3157	ev_io_set (&fs_w, fs_fd, EV_READ);
3064	ev_io_start (EV_A_ &fs_w);	3158	ev_io_start (EV_A_ &fs_w);
3065	ev_unref (EV_A);	3159	ev_unref (EV_A);
3066	}	3160	}
3067		3161
3068	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3162	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3069	{	3163	{
3070	WL w_ = fs_hash [slot].head;	3164	WL w_ = fs_hash [slot].head;
3071	fs_hash [slot].head = 0;	3165	fs_hash [slot].head = 0;
3072		3166
3073	while (w_)	3167	while (w_)
…		…
3248		3342
3249	EV_FREQUENT_CHECK;	3343	EV_FREQUENT_CHECK;
3250	}	3344	}
3251	#endif	3345	#endif
3252		3346
		3347	#if EV_PREPARE_ENABLE
3253	void	3348	void
3254	ev_prepare_start (EV_P_ ev_prepare *w)	3349	ev_prepare_start (EV_P_ ev_prepare *w)
3255	{	3350	{
3256	if (expect_false (ev_is_active (w)))	3351	if (expect_false (ev_is_active (w)))
3257	return;	3352	return;
…		…
3283		3378
3284	ev_stop (EV_A_ (W)w);	3379	ev_stop (EV_A_ (W)w);
3285		3380
3286	EV_FREQUENT_CHECK;	3381	EV_FREQUENT_CHECK;
3287	}	3382	}
		3383	#endif
3288		3384
		3385	#if EV_CHECK_ENABLE
3289	void	3386	void
3290	ev_check_start (EV_P_ ev_check *w)	3387	ev_check_start (EV_P_ ev_check *w)
3291	{	3388	{
3292	if (expect_false (ev_is_active (w)))	3389	if (expect_false (ev_is_active (w)))
3293	return;	3390	return;
…		…
3319		3416
3320	ev_stop (EV_A_ (W)w);	3417	ev_stop (EV_A_ (W)w);
3321		3418
3322	EV_FREQUENT_CHECK;	3419	EV_FREQUENT_CHECK;
3323	}	3420	}
		3421	#endif
3324		3422
3325	#if EV_EMBED_ENABLE	3423	#if EV_EMBED_ENABLE
3326	void noinline	3424	void noinline
3327	ev_embed_sweep (EV_P_ ev_embed *w)	3425	ev_embed_sweep (EV_P_ ev_embed *w)
3328	{	3426	{
3329	ev_loop (w->other, EVLOOP_NONBLOCK);	3427	ev_run (w->other, EVRUN_NOWAIT);
3330	}	3428	}
3331		3429
3332	static void	3430	static void
3333	embed_io_cb (EV_P_ ev_io *io, int revents)	3431	embed_io_cb (EV_P_ ev_io *io, int revents)
3334	{	3432	{
3335	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	3433	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3336		3434
3337	if (ev_cb (w))	3435	if (ev_cb (w))
3338	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3436	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3339	else	3437	else
3340	ev_loop (w->other, EVLOOP_NONBLOCK);	3438	ev_run (w->other, EVRUN_NOWAIT);
3341	}	3439	}
3342		3440
3343	static void	3441	static void
3344	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3442	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3345	{	3443	{
…		…
3349	EV_P = w->other;	3447	EV_P = w->other;
3350		3448
3351	while (fdchangecnt)	3449	while (fdchangecnt)
3352	{	3450	{
3353	fd_reify (EV_A);	3451	fd_reify (EV_A);
3354	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3452	ev_run (EV_A_ EVRUN_NOWAIT);
3355	}	3453	}
3356	}	3454	}
3357	}	3455	}
3358		3456
3359	static void	3457	static void
…		…
3365		3463
3366	{	3464	{
3367	EV_P = w->other;	3465	EV_P = w->other;
3368		3466
3369	ev_loop_fork (EV_A);	3467	ev_loop_fork (EV_A);
3370	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3468	ev_run (EV_A_ EVRUN_NOWAIT);
3371	}	3469	}
3372		3470
3373	ev_embed_start (EV_A_ w);	3471	ev_embed_start (EV_A_ w);
3374	}	3472	}
3375		3473
…		…
3423		3521
3424	ev_io_stop (EV_A_ &w->io);	3522	ev_io_stop (EV_A_ &w->io);
3425	ev_prepare_stop (EV_A_ &w->prepare);	3523	ev_prepare_stop (EV_A_ &w->prepare);
3426	ev_fork_stop (EV_A_ &w->fork);	3524	ev_fork_stop (EV_A_ &w->fork);
3427		3525
		3526	ev_stop (EV_A_ (W)w);
		3527
3428	EV_FREQUENT_CHECK;	3528	EV_FREQUENT_CHECK;
3429	}	3529	}
3430	#endif	3530	#endif
3431		3531
3432	#if EV_FORK_ENABLE	3532	#if EV_FORK_ENABLE
…		…
3471	void	3571	void
3472	ev_async_start (EV_P_ ev_async *w)	3572	ev_async_start (EV_P_ ev_async *w)
3473	{	3573	{
3474	if (expect_false (ev_is_active (w)))	3574	if (expect_false (ev_is_active (w)))
3475	return;	3575	return;
		3576
		3577	w->sent = 0;
3476		3578
3477	evpipe_init (EV_A);	3579	evpipe_init (EV_A);
3478		3580
3479	EV_FREQUENT_CHECK;	3581	EV_FREQUENT_CHECK;
3480		3582
…		…
3558	{	3660	{
3559	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3661	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3560		3662
3561	if (expect_false (!once))	3663	if (expect_false (!once))
3562	{	3664	{
3563	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3665	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3564	return;	3666	return;
3565	}	3667	}
3566		3668
3567	once->cb = cb;	3669	once->cb = cb;
3568	once->arg = arg;	3670	once->arg = arg;
…		…
3655	if (types & EV_ASYNC)	3757	if (types & EV_ASYNC)
3656	for (i = asynccnt; i--; )	3758	for (i = asynccnt; i--; )
3657	cb (EV_A_ EV_ASYNC, asyncs [i]);	3759	cb (EV_A_ EV_ASYNC, asyncs [i]);
3658	#endif	3760	#endif
3659		3761
		3762	#if EV_PREPARE_ENABLE
3660	if (types & EV_PREPARE)	3763	if (types & EV_PREPARE)
3661	for (i = preparecnt; i--; )	3764	for (i = preparecnt; i--; )
3662	#if EV_EMBED_ENABLE	3765	# if EV_EMBED_ENABLE
3663	if (ev_cb (prepares [i]) != embed_prepare_cb)	3766	if (ev_cb (prepares [i]) != embed_prepare_cb)
3664	#endif	3767	# endif
3665	cb (EV_A_ EV_PREPARE, prepares [i]);	3768	cb (EV_A_ EV_PREPARE, prepares [i]);
		3769	#endif
3666		3770
		3771	#if EV_CHECK_ENABLE
3667	if (types & EV_CHECK)	3772	if (types & EV_CHECK)
3668	for (i = checkcnt; i--; )	3773	for (i = checkcnt; i--; )
3669	cb (EV_A_ EV_CHECK, checks [i]);	3774	cb (EV_A_ EV_CHECK, checks [i]);
		3775	#endif
3670		3776
		3777	#if EV_SIGNAL_ENABLE
3671	if (types & EV_SIGNAL)	3778	if (types & EV_SIGNAL)
3672	for (i = 0; i < EV_NSIG - 1; ++i)	3779	for (i = 0; i < EV_NSIG - 1; ++i)
3673	for (wl = signals [i].head; wl; )	3780	for (wl = signals [i].head; wl; )
3674	{	3781	{
3675	wn = wl->next;	3782	wn = wl->next;
3676	cb (EV_A_ EV_SIGNAL, wl);	3783	cb (EV_A_ EV_SIGNAL, wl);
3677	wl = wn;	3784	wl = wn;
3678	}	3785	}
		3786	#endif
3679		3787
		3788	#if EV_CHILD_ENABLE
3680	if (types & EV_CHILD)	3789	if (types & EV_CHILD)
3681	for (i = EV_PID_HASHSIZE; i--; )	3790	for (i = (EV_PID_HASHSIZE); i--; )
3682	for (wl = childs [i]; wl; )	3791	for (wl = childs [i]; wl; )
3683	{	3792	{
3684	wn = wl->next;	3793	wn = wl->next;
3685	cb (EV_A_ EV_CHILD, wl);	3794	cb (EV_A_ EV_CHILD, wl);
3686	wl = wn;	3795	wl = wn;
3687	}	3796	}
		3797	#endif
3688	/* EV_STAT 0x00001000 /* stat data changed */	3798	/* EV_STAT 0x00001000 /* stat data changed */
3689	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3799	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3690	}	3800	}
3691	#endif	3801	#endif
3692		3802
3693	#if EV_MULTIPLICITY	3803	#if EV_MULTIPLICITY
3694	#include "ev_wrap.h"	3804	#include "ev_wrap.h"
3695	#endif	3805	#endif
3696		3806
3697	#ifdef __cplusplus	3807	EV_CPP(})
3698	}
3699	#endif
3700		3808

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