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Comparing libev/ev.c (file contents):
Revision 1.321 by root, Thu Dec 31 06:50:17 2009 UTC vs.
Revision 1.357 by root, Sat Oct 23 22:25:44 2010 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
35	* and other provisions required by the GPL. If you do not delete the	35	* and other provisions required by the GPL. If you do not delete the
36	* provisions above, a recipient may use your version of this file under	36	* provisions above, a recipient may use your version of this file under
37	* either the BSD or the GPL.	37	* either the BSD or the GPL.
38	*/	38	*/
39		39
40	#ifdef __cplusplus
41	extern "C" {
42	#endif
43
44	/* this big block deduces configuration from config.h */	40	/* this big block deduces configuration from config.h */
45	#ifndef EV_STANDALONE	41	#ifndef EV_STANDALONE
46	# ifdef EV_CONFIG_H	42	# ifdef EV_CONFIG_H
47	# include EV_CONFIG_H	43	# include EV_CONFIG_H
48	# else	44	# else
…		…
77	# ifndef EV_USE_REALTIME	73	# ifndef EV_USE_REALTIME
78	# define EV_USE_REALTIME 0	74	# define EV_USE_REALTIME 0
79	# endif	75	# endif
80	# endif	76	# endif
81		77
		78	# if HAVE_NANOSLEEP
82	# ifndef EV_USE_NANOSLEEP	79	# ifndef EV_USE_NANOSLEEP
83	# if HAVE_NANOSLEEP
84	# define EV_USE_NANOSLEEP 1	80	# define EV_USE_NANOSLEEP EV_FEATURE_OS
		81	# endif
85	# else	82	# else
		83	# undef EV_USE_NANOSLEEP
86	# define EV_USE_NANOSLEEP 0	84	# define EV_USE_NANOSLEEP 0
		85	# endif
		86
		87	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		88	# ifndef EV_USE_SELECT
		89	# define EV_USE_SELECT EV_FEATURE_BACKENDS
87	# endif	90	# endif
		91	# else
		92	# undef EV_USE_SELECT
		93	# define EV_USE_SELECT 0
88	# endif	94	# endif
89		95
		96	# if HAVE_POLL && HAVE_POLL_H
90	# ifndef EV_USE_SELECT	97	# ifndef EV_USE_POLL
91	# if HAVE_SELECT && HAVE_SYS_SELECT_H	98	# define EV_USE_POLL EV_FEATURE_BACKENDS
92	# define EV_USE_SELECT 1
93	# else
94	# define EV_USE_SELECT 0
95	# endif	99	# endif
96	# endif
97
98	# ifndef EV_USE_POLL
99	# if HAVE_POLL && HAVE_POLL_H
100	# define EV_USE_POLL 1
101	# else	100	# else
		101	# undef EV_USE_POLL
102	# define EV_USE_POLL 0	102	# define EV_USE_POLL 0
103	# endif
104	# endif	103	# endif
105		104
106	# ifndef EV_USE_EPOLL
107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	105	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108	# define EV_USE_EPOLL 1	106	# ifndef EV_USE_EPOLL
109	# else	107	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110	# define EV_USE_EPOLL 0
111	# endif	108	# endif
		109	# else
		110	# undef EV_USE_EPOLL
		111	# define EV_USE_EPOLL 0
112	# endif	112	# endif
113		113
		114	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114	# ifndef EV_USE_KQUEUE	115	# ifndef EV_USE_KQUEUE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	116	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116	# define EV_USE_KQUEUE 1
117	# else
118	# define EV_USE_KQUEUE 0
119	# endif	117	# endif
		118	# else
		119	# undef EV_USE_KQUEUE
		120	# define EV_USE_KQUEUE 0
120	# endif	121	# endif
121		122
122	# ifndef EV_USE_PORT
123	# if HAVE_PORT_H && HAVE_PORT_CREATE	123	# if HAVE_PORT_H && HAVE_PORT_CREATE
124	# define EV_USE_PORT 1	124	# ifndef EV_USE_PORT
125	# else	125	# define EV_USE_PORT EV_FEATURE_BACKENDS
126	# define EV_USE_PORT 0
127	# endif	126	# endif
		127	# else
		128	# undef EV_USE_PORT
		129	# define EV_USE_PORT 0
128	# endif	130	# endif
129		131
130	# ifndef EV_USE_INOTIFY
131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	132	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132	# define EV_USE_INOTIFY 1	133	# ifndef EV_USE_INOTIFY
133	# else
134	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY EV_FEATURE_OS
135	# endif	135	# endif
		136	# else
		137	# undef EV_USE_INOTIFY
		138	# define EV_USE_INOTIFY 0
136	# endif	139	# endif
137		140
138	# ifndef EV_USE_SIGNALFD
139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H	141	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140	# define EV_USE_SIGNALFD 1	142	# ifndef EV_USE_SIGNALFD
141	# else
142	# define EV_USE_SIGNALFD 0	143	# define EV_USE_SIGNALFD EV_FEATURE_OS
143	# endif	144	# endif
		145	# else
		146	# undef EV_USE_SIGNALFD
		147	# define EV_USE_SIGNALFD 0
144	# endif	148	# endif
145		149
		150	# if HAVE_EVENTFD
146	# ifndef EV_USE_EVENTFD	151	# ifndef EV_USE_EVENTFD
147	# if HAVE_EVENTFD
148	# define EV_USE_EVENTFD 1	152	# define EV_USE_EVENTFD EV_FEATURE_OS
149	# else
150	# define EV_USE_EVENTFD 0
151	# endif	153	# endif
		154	# else
		155	# undef EV_USE_EVENTFD
		156	# define EV_USE_EVENTFD 0
152	# endif	157	# endif
153		158
154	#endif	159	#endif
155		160
156	#include <math.h>	161	#include <math.h>
…		…
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
…		…
344	# endif	354	# endif
345	#endif	355	#endif
346		356
347	/* 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 */
348		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
349	#ifndef CLOCK_MONOTONIC	365	#ifndef CLOCK_MONOTONIC
350	# undef EV_USE_MONOTONIC	366	# undef EV_USE_MONOTONIC
351	# define EV_USE_MONOTONIC 0	367	# define EV_USE_MONOTONIC 0
352	#endif	368	#endif
353		369
…		…
366	# include <sys/select.h>	382	# include <sys/select.h>
367	# endif	383	# endif
368	#endif	384	#endif
369		385
370	#if EV_USE_INOTIFY	386	#if EV_USE_INOTIFY
371	# include <sys/utsname.h>
372	# include <sys/statfs.h>	387	# include <sys/statfs.h>
373	# include <sys/inotify.h>	388	# include <sys/inotify.h>
374	/* 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 */
375	# ifndef IN_DONT_FOLLOW	390	# ifndef IN_DONT_FOLLOW
376	# undef EV_USE_INOTIFY	391	# undef EV_USE_INOTIFY
…		…
393	# define EFD_CLOEXEC O_CLOEXEC	408	# define EFD_CLOEXEC O_CLOEXEC
394	# else	409	# else
395	# define EFD_CLOEXEC 02000000	410	# define EFD_CLOEXEC 02000000
396	# endif	411	# endif
397	# endif	412	# endif
398	# ifdef __cplusplus
399	extern "C" {
400	# endif
401	int eventfd (unsigned int initval, int flags);	413	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
402	# ifdef __cplusplus
403	}
404	# endif
405	#endif	414	#endif
406		415
407	#if EV_USE_SIGNALFD	416	#if EV_USE_SIGNALFD
408	/* 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 */
409	# include <stdint.h>	418	# include <stdint.h>
…		…
415	# define SFD_CLOEXEC O_CLOEXEC	424	# define SFD_CLOEXEC O_CLOEXEC
416	# else	425	# else
417	# define SFD_CLOEXEC 02000000	426	# define SFD_CLOEXEC 02000000
418	# endif	427	# endif
419	# endif	428	# endif
420	# ifdef __cplusplus
421	extern "C" {
422	# endif
423	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);
424		430
425	struct signalfd_siginfo	431	struct signalfd_siginfo
426	{	432	{
427	uint32_t ssi_signo;	433	uint32_t ssi_signo;
428	char pad[128 - sizeof (uint32_t)];	434	char pad[128 - sizeof (uint32_t)];
429	};	435	};
430	# ifdef __cplusplus
431	}
432	# endif	436	#endif
433	#endif
434
435		437
436	/**/	438	/**/
437		439
438	#if EV_VERIFY >= 3	440	#if EV_VERIFY >= 3
439	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	441	# define EV_FREQUENT_CHECK ev_verify (EV_A)
440	#else	442	#else
441	# define EV_FREQUENT_CHECK do { } while (0)	443	# define EV_FREQUENT_CHECK do { } while (0)
442	#endif	444	#endif
443		445
444	/*	446	/*
…		…
452	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	454	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
453		455
454	#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) */
455	#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) */
456		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
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
461	# define expect(expr,value) (expr)	466	# define expect(expr,value) (expr)
…		…
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	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
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	const char *err = strerror (errno);
		597
		598	ev_printerr (msg);
		599	ev_printerr (": ");
		600	ev_printerr (err);
		601	ev_printerr ("\n");
		602	#else
540	perror (msg);	603	perror (msg);
		604	#endif
541	abort ();	605	abort ();
542	}	606	}
543	}	607	}
544		608
545	static void *	609	static void *
546	ev_realloc_emul (void *ptr, long size)	610	ev_realloc_emul (void *ptr, long size)
547	{	611	{
		612	#if __GLIBC__
		613	return realloc (ptr, size);
		614	#else
548	/* some systems, notably openbsd and darwin, fail to properly	615	/* some systems, notably openbsd and darwin, fail to properly
549	* 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
550	* the single unix specification, so work around them here.	617	* the single unix specification, so work around them here.
551	*/	618	*/
552		619
553	if (size)	620	if (size)
554	return realloc (ptr, size);	621	return realloc (ptr, size);
555		622
556	free (ptr);	623	free (ptr);
557	return 0;	624	return 0;
		625	#endif
558	}	626	}
559		627
560	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	628	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
561		629
562	void	630	void
…		…
570	{	638	{
571	ptr = alloc (ptr, size);	639	ptr = alloc (ptr, size);
572		640
573	if (!ptr && size)	641	if (!ptr && size)
574	{	642	{
		643	#if EV_AVOID_STDIO
		644	ev_printerr ("libev: memory allocation failed, aborting.\n");
		645	#else
575	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	646	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		647	#endif
576	abort ();	648	abort ();
577	}	649	}
578		650
579	return ptr;	651	return ptr;
580	}	652	}
…		…
596	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	668	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
597	unsigned char unused;	669	unsigned char unused;
598	#if EV_USE_EPOLL	670	#if EV_USE_EPOLL
599	unsigned int egen; /* generation counter to counter epoll bugs */	671	unsigned int egen; /* generation counter to counter epoll bugs */
600	#endif	672	#endif
601	#if EV_SELECT_IS_WINSOCKET	673	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
602	SOCKET handle;	674	SOCKET handle;
		675	#endif
		676	#if EV_USE_IOCP
		677	OVERLAPPED or, ow;
603	#endif	678	#endif
604	} ANFD;	679	} ANFD;
605		680
606	/* stores the pending event set for a given watcher */	681	/* stores the pending event set for a given watcher */
607	typedef struct	682	typedef struct
…		…
662		737
663	static int ev_default_loop_ptr;	738	static int ev_default_loop_ptr;
664		739
665	#endif	740	#endif
666		741
667	#if EV_MINIMAL < 2	742	#if EV_FEATURE_API
668	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	743	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
669	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	744	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
670	# define EV_INVOKE_PENDING invoke_cb (EV_A)	745	# define EV_INVOKE_PENDING invoke_cb (EV_A)
671	#else	746	#else
672	# define EV_RELEASE_CB (void)0	747	# define EV_RELEASE_CB (void)0
673	# define EV_ACQUIRE_CB (void)0	748	# define EV_ACQUIRE_CB (void)0
674	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	749	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
675	#endif	750	#endif
676		751
677	#define EVUNLOOP_RECURSE 0x80	752	#define EVBREAK_RECURSE 0x80
678		753
679	/*****************************************************************************/	754	/*****************************************************************************/
680		755
681	#ifndef EV_HAVE_EV_TIME	756	#ifndef EV_HAVE_EV_TIME
682	ev_tstamp	757	ev_tstamp
…		…
726	if (delay > 0.)	801	if (delay > 0.)
727	{	802	{
728	#if EV_USE_NANOSLEEP	803	#if EV_USE_NANOSLEEP
729	struct timespec ts;	804	struct timespec ts;
730		805
731	ts.tv_sec = (time_t)delay;	806	EV_TS_SET (ts, delay);
732	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
733
734	nanosleep (&ts, 0);	807	nanosleep (&ts, 0);
735	#elif defined(_WIN32)	808	#elif defined(_WIN32)
736	Sleep ((unsigned long)(delay * 1e3));	809	Sleep ((unsigned long)(delay * 1e3));
737	#else	810	#else
738	struct timeval tv;	811	struct timeval tv;
739		812
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 */	813	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
744	/* something not guaranteed by newer posix versions, but guaranteed */	814	/* something not guaranteed by newer posix versions, but guaranteed */
745	/* by older ones */	815	/* by older ones */
		816	EV_TV_SET (tv, delay);
746	select (0, 0, 0, 0, &tv);	817	select (0, 0, 0, 0, &tv);
747	#endif	818	#endif
748	}	819	}
749	}	820	}
750		821
751	/*****************************************************************************/	822	/*****************************************************************************/
752		823
753	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	824	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
754		825
755	/* find a suitable new size for the given array, */	826	/* find a suitable new size for the given array, */
756	/* hopefully by rounding to a ncie-to-malloc size */	827	/* hopefully by rounding to a nice-to-malloc size */
757	inline_size int	828	inline_size int
758	array_nextsize (int elem, int cur, int cnt)	829	array_nextsize (int elem, int cur, int cnt)
759	{	830	{
760	int ncur = cur + 1;	831	int ncur = cur + 1;
761		832
…		…
857	}	928	}
858		929
859	/*****************************************************************************/	930	/*****************************************************************************/
860		931
861	inline_speed void	932	inline_speed void
862	fd_event_nc (EV_P_ int fd, int revents)	933	fd_event_nocheck (EV_P_ int fd, int revents)
863	{	934	{
864	ANFD *anfd = anfds + fd;	935	ANFD *anfd = anfds + fd;
865	ev_io *w;	936	ev_io *w;
866		937
867	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	938	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
879	fd_event (EV_P_ int fd, int revents)	950	fd_event (EV_P_ int fd, int revents)
880	{	951	{
881	ANFD *anfd = anfds + fd;	952	ANFD *anfd = anfds + fd;
882		953
883	if (expect_true (!anfd->reify))	954	if (expect_true (!anfd->reify))
884	fd_event_nc (EV_A_ fd, revents);	955	fd_event_nocheck (EV_A_ fd, revents);
885	}	956	}
886		957
887	void	958	void
888	ev_feed_fd_event (EV_P_ int fd, int revents)	959	ev_feed_fd_event (EV_P_ int fd, int revents)
889	{	960	{
890	if (fd >= 0 && fd < anfdmax)	961	if (fd >= 0 && fd < anfdmax)
891	fd_event_nc (EV_A_ fd, revents);	962	fd_event_nocheck (EV_A_ fd, revents);
892	}	963	}
893		964
894	/* make sure the external fd watch events are in-sync */	965	/* make sure the external fd watch events are in-sync */
895	/* with the kernel/libev internal state */	966	/* with the kernel/libev internal state */
896	inline_size void	967	inline_size void
…		…
902	{	973	{
903	int fd = fdchanges [i];	974	int fd = fdchanges [i];
904	ANFD *anfd = anfds + fd;	975	ANFD *anfd = anfds + fd;
905	ev_io *w;	976	ev_io *w;
906		977
907	unsigned char events = 0;	978	unsigned char o_events = anfd->events;
		979	unsigned char o_reify = anfd->reify;
908		980
909	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	981	anfd->reify = 0;
910	events |= (unsigned char)w->events;
911		982
912	#if EV_SELECT_IS_WINSOCKET	983	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
913	if (events)	984	if (o_reify & EV__IOFDSET)
914	{	985	{
915	unsigned long arg;	986	unsigned long arg;
916	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	987	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
917	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	988	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
		989	printf ("oi %d %x\n", fd, anfd->handle);//D
918	}	990	}
919	#endif	991	#endif
920		992
		993	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
921	{	994	{
922	unsigned char o_events = anfd->events;
923	unsigned char o_reify = anfd->reify;
924
925	anfd->reify = 0;
926	anfd->events = events;	995	anfd->events = 0;
927		996
928	if (o_events != events || o_reify & EV__IOFDSET)	997	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
		998	anfd->events |= (unsigned char)w->events;
		999
		1000	if (o_events != anfd->events)
		1001	o_reify = EV__IOFDSET; /* actually |= */
		1002	}
		1003
		1004	if (o_reify & EV__IOFDSET)
929	backend_modify (EV_A_ fd, o_events, events);	1005	backend_modify (EV_A_ fd, o_events, anfd->events);
930	}
931	}	1006	}
932		1007
933	fdchangecnt = 0;	1008	fdchangecnt = 0;
934	}	1009	}
935		1010
…		…
959	ev_io_stop (EV_A_ w);	1034	ev_io_stop (EV_A_ w);
960	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1035	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
961	}	1036	}
962	}	1037	}
963		1038
964	/* check whether the given fd is atcually valid, for error recovery */	1039	/* check whether the given fd is actually valid, for error recovery */
965	inline_size int	1040	inline_size int
966	fd_valid (int fd)	1041	fd_valid (int fd)
967	{	1042	{
968	#ifdef _WIN32	1043	#ifdef _WIN32
969	return _get_osfhandle (fd) != -1;	1044	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
970	#else	1045	#else
971	return fcntl (fd, F_GETFD) != -1;	1046	return fcntl (fd, F_GETFD) != -1;
972	#endif	1047	#endif
973	}	1048	}
974		1049
…		…
1011	anfds [fd].emask = 0;	1086	anfds [fd].emask = 0;
1012	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);	1087	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1013	}	1088	}
1014	}	1089	}
1015		1090
		1091	/* used to prepare libev internal fd's */
		1092	/* this is not fork-safe */
		1093	inline_speed void
		1094	fd_intern (int fd)
		1095	{
		1096	#ifdef _WIN32
		1097	unsigned long arg = 1;
		1098	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1099	#else
		1100	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1101	fcntl (fd, F_SETFL, O_NONBLOCK);
		1102	#endif
		1103	}
		1104
1016	/*****************************************************************************/	1105	/*****************************************************************************/
1017		1106
1018	/*	1107	/*
1019	* the heap functions want a real array index. array index 0 uis guaranteed to not	1108	* the heap functions want a real array index. array index 0 is guaranteed to not
1020	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives	1109	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1021	* the branching factor of the d-tree.	1110	* the branching factor of the d-tree.
1022	*/	1111	*/
1023		1112
1024	/*	1113	/*
…		…
1172		1261
1173	static ANSIG signals [EV_NSIG - 1];	1262	static ANSIG signals [EV_NSIG - 1];
1174		1263
1175	/*****************************************************************************/	1264	/*****************************************************************************/
1176		1265
1177	/* used to prepare libev internal fd's */	1266	#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		1267
1191	static void noinline	1268	static void noinline
1192	evpipe_init (EV_P)	1269	evpipe_init (EV_P)
1193	{	1270	{
1194	if (!ev_is_active (&pipe_w))	1271	if (!ev_is_active (&pipe_w))
1195	{	1272	{
1196	#if EV_USE_EVENTFD	1273	# if EV_USE_EVENTFD
1197	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1274	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1198	if (evfd < 0 && errno == EINVAL)	1275	if (evfd < 0 && errno == EINVAL)
1199	evfd = eventfd (0, 0);	1276	evfd = eventfd (0, 0);
1200		1277
1201	if (evfd >= 0)	1278	if (evfd >= 0)
…		…
1203	evpipe [0] = -1;	1280	evpipe [0] = -1;
1204	fd_intern (evfd); /* doing it twice doesn't hurt */	1281	fd_intern (evfd); /* doing it twice doesn't hurt */
1205	ev_io_set (&pipe_w, evfd, EV_READ);	1282	ev_io_set (&pipe_w, evfd, EV_READ);
1206	}	1283	}
1207	else	1284	else
1208	#endif	1285	# endif
1209	{	1286	{
1210	while (pipe (evpipe))	1287	while (pipe (evpipe))
1211	ev_syserr ("(libev) error creating signal/async pipe");	1288	ev_syserr ("(libev) error creating signal/async pipe");
1212		1289
1213	fd_intern (evpipe [0]);	1290	fd_intern (evpipe [0]);
…		…
1224	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1301	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1225	{	1302	{
1226	if (!*flag)	1303	if (!*flag)
1227	{	1304	{
1228	int old_errno = errno; /* save errno because write might clobber it */	1305	int old_errno = errno; /* save errno because write might clobber it */
		1306	char dummy;
1229		1307
1230	*flag = 1;	1308	*flag = 1;
1231		1309
1232	#if EV_USE_EVENTFD	1310	#if EV_USE_EVENTFD
1233	if (evfd >= 0)	1311	if (evfd >= 0)
…		…
1235	uint64_t counter = 1;	1313	uint64_t counter = 1;
1236	write (evfd, &counter, sizeof (uint64_t));	1314	write (evfd, &counter, sizeof (uint64_t));
1237	}	1315	}
1238	else	1316	else
1239	#endif	1317	#endif
		1318	/* win32 people keep sending patches that change this write() to send() */
		1319	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1320	/* so when you think this write should be a send instead, please find out */
		1321	/* where your send() is from - it's definitely not the microsoft send, and */
		1322	/* tell me. thank you. */
1240	write (evpipe [1], &old_errno, 1);	1323	write (evpipe [1], &dummy, 1);
1241		1324
1242	errno = old_errno;	1325	errno = old_errno;
1243	}	1326	}
1244	}	1327	}
1245		1328
…		…
1258	}	1341	}
1259	else	1342	else
1260	#endif	1343	#endif
1261	{	1344	{
1262	char dummy;	1345	char dummy;
		1346	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1263	read (evpipe [0], &dummy, 1);	1347	read (evpipe [0], &dummy, 1);
1264	}	1348	}
1265		1349
1266	if (sig_pending)	1350	if (sig_pending)
1267	{	1351	{
…		…
1294	{	1378	{
1295	#if EV_MULTIPLICITY	1379	#if EV_MULTIPLICITY
1296	EV_P = signals [signum - 1].loop;	1380	EV_P = signals [signum - 1].loop;
1297	#endif	1381	#endif
1298		1382
1299	#if _WIN32	1383	#ifdef _WIN32
1300	signal (signum, ev_sighandler);	1384	signal (signum, ev_sighandler);
1301	#endif	1385	#endif
1302		1386
1303	signals [signum - 1].pending = 1;	1387	signals [signum - 1].pending = 1;
1304	evpipe_write (EV_A_ &sig_pending);	1388	evpipe_write (EV_A_ &sig_pending);
…		…
1346	break;	1430	break;
1347	}	1431	}
1348	}	1432	}
1349	#endif	1433	#endif
1350		1434
		1435	#endif
		1436
1351	/*****************************************************************************/	1437	/*****************************************************************************/
1352		1438
		1439	#if EV_CHILD_ENABLE
1353	static WL childs [EV_PID_HASHSIZE];	1440	static WL childs [EV_PID_HASHSIZE];
1354
1355	#ifndef _WIN32
1356		1441
1357	static ev_signal childev;	1442	static ev_signal childev;
1358		1443
1359	#ifndef WIFCONTINUED	1444	#ifndef WIFCONTINUED
1360	# define WIFCONTINUED(status) 0	1445	# define WIFCONTINUED(status) 0
…		…
1365	child_reap (EV_P_ int chain, int pid, int status)	1450	child_reap (EV_P_ int chain, int pid, int status)
1366	{	1451	{
1367	ev_child *w;	1452	ev_child *w;
1368	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1453	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1369		1454
1370	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1455	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1371	{	1456	{
1372	if ((w->pid == pid || !w->pid)	1457	if ((w->pid == pid || !w->pid)
1373	&& (!traced || (w->flags & 1)))	1458	&& (!traced || (w->flags & 1)))
1374	{	1459	{
1375	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1460	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
…		…
1400	/* make sure we are called again until all children have been reaped */	1485	/* make sure we are called again until all children have been reaped */
1401	/* we need to do it this way so that the callback gets called before we continue */	1486	/* we need to do it this way so that the callback gets called before we continue */
1402	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1487	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1403		1488
1404	child_reap (EV_A_ pid, pid, status);	1489	child_reap (EV_A_ pid, pid, status);
1405	if (EV_PID_HASHSIZE > 1)	1490	if ((EV_PID_HASHSIZE) > 1)
1406	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1491	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1407	}	1492	}
1408		1493
1409	#endif	1494	#endif
1410		1495
1411	/*****************************************************************************/	1496	/*****************************************************************************/
1412		1497
		1498	#if EV_USE_IOCP
		1499	# include "ev_iocp.c"
		1500	#endif
1413	#if EV_USE_PORT	1501	#if EV_USE_PORT
1414	# include "ev_port.c"	1502	# include "ev_port.c"
1415	#endif	1503	#endif
1416	#if EV_USE_KQUEUE	1504	#if EV_USE_KQUEUE
1417	# include "ev_kqueue.c"	1505	# include "ev_kqueue.c"
…		…
1477	#ifdef __APPLE__	1565	#ifdef __APPLE__
1478	/* only select works correctly on that "unix-certified" platform */	1566	/* only select works correctly on that "unix-certified" platform */
1479	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1567	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1480	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1568	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1481	#endif	1569	#endif
		1570	#ifdef __FreeBSD__
		1571	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1572	#endif
1482		1573
1483	return flags;	1574	return flags;
1484	}	1575	}
1485		1576
1486	unsigned int	1577	unsigned int
1487	ev_embeddable_backends (void)	1578	ev_embeddable_backends (void)
1488	{	1579	{
1489	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	1580	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1490		1581
1491	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	1582	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1492	/* please fix it and tell me how to detect the fix */	1583	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1493	flags &= ~EVBACKEND_EPOLL;	1584	flags &= ~EVBACKEND_EPOLL;
1494		1585
1495	return flags;	1586	return flags;
1496	}	1587	}
1497		1588
1498	unsigned int	1589	unsigned int
1499	ev_backend (EV_P)	1590	ev_backend (EV_P)
1500	{	1591	{
1501	return backend;	1592	return backend;
1502	}	1593	}
1503		1594
1504	#if EV_MINIMAL < 2	1595	#if EV_FEATURE_API
1505	unsigned int	1596	unsigned int
1506	ev_loop_count (EV_P)	1597	ev_iteration (EV_P)
1507	{	1598	{
1508	return loop_count;	1599	return loop_count;
1509	}	1600	}
1510		1601
1511	unsigned int	1602	unsigned int
1512	ev_loop_depth (EV_P)	1603	ev_depth (EV_P)
1513	{	1604	{
1514	return loop_depth;	1605	return loop_depth;
1515	}	1606	}
1516		1607
1517	void	1608	void
…		…
1589		1680
1590	ev_rt_now = ev_time ();	1681	ev_rt_now = ev_time ();
1591	mn_now = get_clock ();	1682	mn_now = get_clock ();
1592	now_floor = mn_now;	1683	now_floor = mn_now;
1593	rtmn_diff = ev_rt_now - mn_now;	1684	rtmn_diff = ev_rt_now - mn_now;
1594	#if EV_MINIMAL < 2	1685	#if EV_FEATURE_API
1595	invoke_cb = ev_invoke_pending;	1686	invoke_cb = ev_invoke_pending;
1596	#endif	1687	#endif
1597		1688
1598	io_blocktime = 0.;	1689	io_blocktime = 0.;
1599	timeout_blocktime = 0.;	1690	timeout_blocktime = 0.;
…		…
1611	#endif	1702	#endif
1612		1703
1613	if (!(flags & 0x0000ffffU))	1704	if (!(flags & 0x0000ffffU))
1614	flags |= ev_recommended_backends ();	1705	flags |= ev_recommended_backends ();
1615		1706
		1707	#if EV_USE_IOCP
		1708	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		1709	#endif
1616	#if EV_USE_PORT	1710	#if EV_USE_PORT
1617	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1711	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1618	#endif	1712	#endif
1619	#if EV_USE_KQUEUE	1713	#if EV_USE_KQUEUE
1620	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1714	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1629	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1723	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1630	#endif	1724	#endif
1631		1725
1632	ev_prepare_init (&pending_w, pendingcb);	1726	ev_prepare_init (&pending_w, pendingcb);
1633		1727
		1728	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1634	ev_init (&pipe_w, pipecb);	1729	ev_init (&pipe_w, pipecb);
1635	ev_set_priority (&pipe_w, EV_MAXPRI);	1730	ev_set_priority (&pipe_w, EV_MAXPRI);
		1731	#endif
1636	}	1732	}
1637	}	1733	}
1638		1734
1639	/* free up a loop structure */	1735	/* free up a loop structure */
1640	static void noinline	1736	static void noinline
…		…
1670	#endif	1766	#endif
1671		1767
1672	if (backend_fd >= 0)	1768	if (backend_fd >= 0)
1673	close (backend_fd);	1769	close (backend_fd);
1674		1770
		1771	#if EV_USE_IOCP
		1772	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		1773	#endif
1675	#if EV_USE_PORT	1774	#if EV_USE_PORT
1676	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1775	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1677	#endif	1776	#endif
1678	#if EV_USE_KQUEUE	1777	#if EV_USE_KQUEUE
1679	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	1778	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1758	{	1857	{
1759	EV_WIN32_CLOSE_FD (evpipe [0]);	1858	EV_WIN32_CLOSE_FD (evpipe [0]);
1760	EV_WIN32_CLOSE_FD (evpipe [1]);	1859	EV_WIN32_CLOSE_FD (evpipe [1]);
1761	}	1860	}
1762		1861
		1862	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1763	evpipe_init (EV_A);	1863	evpipe_init (EV_A);
1764	/* now iterate over everything, in case we missed something */	1864	/* now iterate over everything, in case we missed something */
1765	pipecb (EV_A_ &pipe_w, EV_READ);	1865	pipecb (EV_A_ &pipe_w, EV_READ);
		1866	#endif
1766	}	1867	}
1767		1868
1768	postfork = 0;	1869	postfork = 0;
1769	}	1870	}
1770		1871
…		…
1832	verify_watcher (EV_A_ ws [cnt]);	1933	verify_watcher (EV_A_ ws [cnt]);
1833	}	1934	}
1834	}	1935	}
1835	#endif	1936	#endif
1836		1937
1837	#if EV_MINIMAL < 2	1938	#if EV_FEATURE_API
1838	void	1939	void
1839	ev_loop_verify (EV_P)	1940	ev_verify (EV_P)
1840	{	1941	{
1841	#if EV_VERIFY	1942	#if EV_VERIFY
1842	int i;	1943	int i;
1843	WL w;	1944	WL w;
1844		1945
…		…
1883	#if EV_ASYNC_ENABLE	1984	#if EV_ASYNC_ENABLE
1884	assert (asyncmax >= asynccnt);	1985	assert (asyncmax >= asynccnt);
1885	array_verify (EV_A_ (W *)asyncs, asynccnt);	1986	array_verify (EV_A_ (W *)asyncs, asynccnt);
1886	#endif	1987	#endif
1887		1988
		1989	#if EV_PREPARE_ENABLE
1888	assert (preparemax >= preparecnt);	1990	assert (preparemax >= preparecnt);
1889	array_verify (EV_A_ (W *)prepares, preparecnt);	1991	array_verify (EV_A_ (W *)prepares, preparecnt);
		1992	#endif
1890		1993
		1994	#if EV_CHECK_ENABLE
1891	assert (checkmax >= checkcnt);	1995	assert (checkmax >= checkcnt);
1892	array_verify (EV_A_ (W *)checks, checkcnt);	1996	array_verify (EV_A_ (W *)checks, checkcnt);
		1997	#endif
1893		1998
1894	# if 0	1999	# if 0
		2000	#if EV_CHILD_ENABLE
1895	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	2001	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1896	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	2002	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		2003	#endif
1897	# endif	2004	# endif
1898	#endif	2005	#endif
1899	}	2006	}
1900	#endif	2007	#endif
1901		2008
…		…
1917		2024
1918	loop_init (EV_A_ flags);	2025	loop_init (EV_A_ flags);
1919		2026
1920	if (ev_backend (EV_A))	2027	if (ev_backend (EV_A))
1921	{	2028	{
1922	#ifndef _WIN32	2029	#if EV_CHILD_ENABLE
1923	ev_signal_init (&childev, childcb, SIGCHLD);	2030	ev_signal_init (&childev, childcb, SIGCHLD);
1924	ev_set_priority (&childev, EV_MAXPRI);	2031	ev_set_priority (&childev, EV_MAXPRI);
1925	ev_signal_start (EV_A_ &childev);	2032	ev_signal_start (EV_A_ &childev);
1926	ev_unref (EV_A); /* child watcher should not keep loop alive */	2033	ev_unref (EV_A); /* child watcher should not keep loop alive */
1927	#endif	2034	#endif
…		…
1940	EV_P = ev_default_loop_ptr;	2047	EV_P = ev_default_loop_ptr;
1941	#endif	2048	#endif
1942		2049
1943	ev_default_loop_ptr = 0;	2050	ev_default_loop_ptr = 0;
1944		2051
1945	#ifndef _WIN32	2052	#if EV_CHILD_ENABLE
1946	ev_ref (EV_A); /* child watcher */	2053	ev_ref (EV_A); /* child watcher */
1947	ev_signal_stop (EV_A_ &childev);	2054	ev_signal_stop (EV_A_ &childev);
1948	#endif	2055	#endif
1949		2056
1950	loop_destroy (EV_A);	2057	loop_destroy (EV_A);
…		…
2056	EV_FREQUENT_CHECK;	2163	EV_FREQUENT_CHECK;
2057	feed_reverse (EV_A_ (W)w);	2164	feed_reverse (EV_A_ (W)w);
2058	}	2165	}
2059	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2166	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2060		2167
2061	feed_reverse_done (EV_A_ EV_TIMEOUT);	2168	feed_reverse_done (EV_A_ EV_TIMER);
2062	}	2169	}
2063	}	2170	}
2064		2171
2065	#if EV_PERIODIC_ENABLE	2172	#if EV_PERIODIC_ENABLE
2066	/* make periodics pending */	2173	/* make periodics pending */
…		…
2119	feed_reverse_done (EV_A_ EV_PERIODIC);	2226	feed_reverse_done (EV_A_ EV_PERIODIC);
2120	}	2227	}
2121	}	2228	}
2122		2229
2123	/* simply recalculate all periodics */	2230	/* simply recalculate all periodics */
2124	/* TODO: maybe ensure that at leats one event happens when jumping forward? */	2231	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2125	static void noinline	2232	static void noinline
2126	periodics_reschedule (EV_P)	2233	periodics_reschedule (EV_P)
2127	{	2234	{
2128	int i;	2235	int i;
2129		2236
…		…
2157	ANHE_at_cache (*he);	2264	ANHE_at_cache (*he);
2158	}	2265	}
2159	}	2266	}
2160		2267
2161	/* fetch new monotonic and realtime times from the kernel */	2268	/* fetch new monotonic and realtime times from the kernel */
2162	/* also detetc if there was a timejump, and act accordingly */	2269	/* also detect if there was a timejump, and act accordingly */
2163	inline_speed void	2270	inline_speed void
2164	time_update (EV_P_ ev_tstamp max_block)	2271	time_update (EV_P_ ev_tstamp max_block)
2165	{	2272	{
2166	#if EV_USE_MONOTONIC	2273	#if EV_USE_MONOTONIC
2167	if (expect_true (have_monotonic))	2274	if (expect_true (have_monotonic))
…		…
2225	mn_now = ev_rt_now;	2332	mn_now = ev_rt_now;
2226	}	2333	}
2227	}	2334	}
2228		2335
2229	void	2336	void
2230	ev_loop (EV_P_ int flags)	2337	ev_run (EV_P_ int flags)
2231	{	2338	{
2232	#if EV_MINIMAL < 2	2339	#if EV_FEATURE_API
2233	++loop_depth;	2340	++loop_depth;
2234	#endif	2341	#endif
2235		2342
2236	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2343	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2237		2344
2238	loop_done = EVUNLOOP_CANCEL;	2345	loop_done = EVBREAK_CANCEL;
2239		2346
2240	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2347	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2241		2348
2242	do	2349	do
2243	{	2350	{
2244	#if EV_VERIFY >= 2	2351	#if EV_VERIFY >= 2
2245	ev_loop_verify (EV_A);	2352	ev_verify (EV_A);
2246	#endif	2353	#endif
2247		2354
2248	#ifndef _WIN32	2355	#ifndef _WIN32
2249	if (expect_false (curpid)) /* penalise the forking check even more */	2356	if (expect_false (curpid)) /* penalise the forking check even more */
2250	if (expect_false (getpid () != curpid))	2357	if (expect_false (getpid () != curpid))
…		…
2262	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2369	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2263	EV_INVOKE_PENDING;	2370	EV_INVOKE_PENDING;
2264	}	2371	}
2265	#endif	2372	#endif
2266		2373
		2374	#if EV_PREPARE_ENABLE
2267	/* queue prepare watchers (and execute them) */	2375	/* queue prepare watchers (and execute them) */
2268	if (expect_false (preparecnt))	2376	if (expect_false (preparecnt))
2269	{	2377	{
2270	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2378	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2271	EV_INVOKE_PENDING;	2379	EV_INVOKE_PENDING;
2272	}	2380	}
		2381	#endif
2273		2382
2274	if (expect_false (loop_done))	2383	if (expect_false (loop_done))
2275	break;	2384	break;
2276		2385
2277	/* we might have forked, so reify kernel state if necessary */	2386	/* we might have forked, so reify kernel state if necessary */
…		…
2284	/* calculate blocking time */	2393	/* calculate blocking time */
2285	{	2394	{
2286	ev_tstamp waittime = 0.;	2395	ev_tstamp waittime = 0.;
2287	ev_tstamp sleeptime = 0.;	2396	ev_tstamp sleeptime = 0.;
2288		2397
		2398	/* remember old timestamp for io_blocktime calculation */
		2399	ev_tstamp prev_mn_now = mn_now;
		2400
		2401	/* update time to cancel out callback processing overhead */
		2402	time_update (EV_A_ 1e100);
		2403
2289	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2404	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2290	{	2405	{
2291	/* remember old timestamp for io_blocktime calculation */
2292	ev_tstamp prev_mn_now = mn_now;
2293
2294	/* update time to cancel out callback processing overhead */
2295	time_update (EV_A_ 1e100);
2296
2297	waittime = MAX_BLOCKTIME;	2406	waittime = MAX_BLOCKTIME;
2298		2407
2299	if (timercnt)	2408	if (timercnt)
2300	{	2409	{
2301	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2410	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
…		…
2328	waittime -= sleeptime;	2437	waittime -= sleeptime;
2329	}	2438	}
2330	}	2439	}
2331	}	2440	}
2332		2441
2333	#if EV_MINIMAL < 2	2442	#if EV_FEATURE_API
2334	++loop_count;	2443	++loop_count;
2335	#endif	2444	#endif
2336	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2445	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2337	backend_poll (EV_A_ waittime);	2446	backend_poll (EV_A_ waittime);
2338	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2447	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2339		2448
2340	/* update ev_rt_now, do magic */	2449	/* update ev_rt_now, do magic */
2341	time_update (EV_A_ waittime + sleeptime);	2450	time_update (EV_A_ waittime + sleeptime);
2342	}	2451	}
2343		2452
…		…
2350	#if EV_IDLE_ENABLE	2459	#if EV_IDLE_ENABLE
2351	/* queue idle watchers unless other events are pending */	2460	/* queue idle watchers unless other events are pending */
2352	idle_reify (EV_A);	2461	idle_reify (EV_A);
2353	#endif	2462	#endif
2354		2463
		2464	#if EV_CHECK_ENABLE
2355	/* queue check watchers, to be executed first */	2465	/* queue check watchers, to be executed first */
2356	if (expect_false (checkcnt))	2466	if (expect_false (checkcnt))
2357	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2467	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2468	#endif
2358		2469
2359	EV_INVOKE_PENDING;	2470	EV_INVOKE_PENDING;
2360	}	2471	}
2361	while (expect_true (	2472	while (expect_true (
2362	activecnt	2473	activecnt
2363	&& !loop_done	2474	&& !loop_done
2364	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2475	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2365	));	2476	));
2366		2477
2367	if (loop_done == EVUNLOOP_ONE)	2478	if (loop_done == EVBREAK_ONE)
2368	loop_done = EVUNLOOP_CANCEL;	2479	loop_done = EVBREAK_CANCEL;
2369		2480
2370	#if EV_MINIMAL < 2	2481	#if EV_FEATURE_API
2371	--loop_depth;	2482	--loop_depth;
2372	#endif	2483	#endif
2373	}	2484	}
2374		2485
2375	void	2486	void
2376	ev_unloop (EV_P_ int how)	2487	ev_break (EV_P_ int how)
2377	{	2488	{
2378	loop_done = how;	2489	loop_done = how;
2379	}	2490	}
2380		2491
2381	void	2492	void
…		…
2501		2612
2502	if (expect_false (ev_is_active (w)))	2613	if (expect_false (ev_is_active (w)))
2503	return;	2614	return;
2504		2615
2505	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2616	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2506	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2617	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2507		2618
2508	EV_FREQUENT_CHECK;	2619	EV_FREQUENT_CHECK;
2509		2620
2510	ev_start (EV_A_ (W)w, 1);	2621	ev_start (EV_A_ (W)w, 1);
2511	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2622	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2529	EV_FREQUENT_CHECK;	2640	EV_FREQUENT_CHECK;
2530		2641
2531	wlist_del (&anfds[w->fd].head, (WL)w);	2642	wlist_del (&anfds[w->fd].head, (WL)w);
2532	ev_stop (EV_A_ (W)w);	2643	ev_stop (EV_A_ (W)w);
2533		2644
2534	fd_change (EV_A_ w->fd, 1);	2645	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2535		2646
2536	EV_FREQUENT_CHECK;	2647	EV_FREQUENT_CHECK;
2537	}	2648	}
2538		2649
2539	void noinline	2650	void noinline
…		…
2581	timers [active] = timers [timercnt + HEAP0];	2692	timers [active] = timers [timercnt + HEAP0];
2582	adjustheap (timers, timercnt, active);	2693	adjustheap (timers, timercnt, active);
2583	}	2694	}
2584	}	2695	}
2585		2696
2586	EV_FREQUENT_CHECK;
2587
2588	ev_at (w) -= mn_now;	2697	ev_at (w) -= mn_now;
2589		2698
2590	ev_stop (EV_A_ (W)w);	2699	ev_stop (EV_A_ (W)w);
		2700
		2701	EV_FREQUENT_CHECK;
2591	}	2702	}
2592		2703
2593	void noinline	2704	void noinline
2594	ev_timer_again (EV_P_ ev_timer *w)	2705	ev_timer_again (EV_P_ ev_timer *w)
2595	{	2706	{
…		…
2674	periodics [active] = periodics [periodiccnt + HEAP0];	2785	periodics [active] = periodics [periodiccnt + HEAP0];
2675	adjustheap (periodics, periodiccnt, active);	2786	adjustheap (periodics, periodiccnt, active);
2676	}	2787	}
2677	}	2788	}
2678		2789
2679	EV_FREQUENT_CHECK;
2680
2681	ev_stop (EV_A_ (W)w);	2790	ev_stop (EV_A_ (W)w);
		2791
		2792	EV_FREQUENT_CHECK;
2682	}	2793	}
2683		2794
2684	void noinline	2795	void noinline
2685	ev_periodic_again (EV_P_ ev_periodic *w)	2796	ev_periodic_again (EV_P_ ev_periodic *w)
2686	{	2797	{
…		…
2691	#endif	2802	#endif
2692		2803
2693	#ifndef SA_RESTART	2804	#ifndef SA_RESTART
2694	# define SA_RESTART 0	2805	# define SA_RESTART 0
2695	#endif	2806	#endif
		2807
		2808	#if EV_SIGNAL_ENABLE
2696		2809
2697	void noinline	2810	void noinline
2698	ev_signal_start (EV_P_ ev_signal *w)	2811	ev_signal_start (EV_P_ ev_signal *w)
2699	{	2812	{
2700	if (expect_false (ev_is_active (w)))	2813	if (expect_false (ev_is_active (w)))
…		…
2747	if (!((WL)w)->next)	2860	if (!((WL)w)->next)
2748	# if EV_USE_SIGNALFD	2861	# if EV_USE_SIGNALFD
2749	if (sigfd < 0) /*TODO*/	2862	if (sigfd < 0) /*TODO*/
2750	# endif	2863	# endif
2751	{	2864	{
2752	# if _WIN32	2865	# ifdef _WIN32
2753	evpipe_init (EV_A);	2866	evpipe_init (EV_A);
2754		2867
2755	signal (w->signum, ev_sighandler);	2868	signal (w->signum, ev_sighandler);
2756	# else	2869	# else
2757	struct sigaction sa;	2870	struct sigaction sa;
…		…
2807	}	2920	}
2808		2921
2809	EV_FREQUENT_CHECK;	2922	EV_FREQUENT_CHECK;
2810	}	2923	}
2811		2924
		2925	#endif
		2926
		2927	#if EV_CHILD_ENABLE
		2928
2812	void	2929	void
2813	ev_child_start (EV_P_ ev_child *w)	2930	ev_child_start (EV_P_ ev_child *w)
2814	{	2931	{
2815	#if EV_MULTIPLICITY	2932	#if EV_MULTIPLICITY
2816	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2933	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
…		…
2819	return;	2936	return;
2820		2937
2821	EV_FREQUENT_CHECK;	2938	EV_FREQUENT_CHECK;
2822		2939
2823	ev_start (EV_A_ (W)w, 1);	2940	ev_start (EV_A_ (W)w, 1);
2824	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2941	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2825		2942
2826	EV_FREQUENT_CHECK;	2943	EV_FREQUENT_CHECK;
2827	}	2944	}
2828		2945
2829	void	2946	void
…		…
2833	if (expect_false (!ev_is_active (w)))	2950	if (expect_false (!ev_is_active (w)))
2834	return;	2951	return;
2835		2952
2836	EV_FREQUENT_CHECK;	2953	EV_FREQUENT_CHECK;
2837		2954
2838	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2955	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2839	ev_stop (EV_A_ (W)w);	2956	ev_stop (EV_A_ (W)w);
2840		2957
2841	EV_FREQUENT_CHECK;	2958	EV_FREQUENT_CHECK;
2842	}	2959	}
		2960
		2961	#endif
2843		2962
2844	#if EV_STAT_ENABLE	2963	#if EV_STAT_ENABLE
2845		2964
2846	# ifdef _WIN32	2965	# ifdef _WIN32
2847	# undef lstat	2966	# undef lstat
…		…
2853	#define MIN_STAT_INTERVAL 0.1074891	2972	#define MIN_STAT_INTERVAL 0.1074891
2854		2973
2855	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2974	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2856		2975
2857	#if EV_USE_INOTIFY	2976	#if EV_USE_INOTIFY
2858	# define EV_INOTIFY_BUFSIZE 8192	2977
		2978	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2979	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2859		2980
2860	static void noinline	2981	static void noinline
2861	infy_add (EV_P_ ev_stat *w)	2982	infy_add (EV_P_ ev_stat *w)
2862	{	2983	{
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);	2984	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);
…		…
2912	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	3033	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2913	}	3034	}
2914	}	3035	}
2915		3036
2916	if (w->wd >= 0)	3037	if (w->wd >= 0)
2917	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3038	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2918		3039
2919	/* now re-arm timer, if required */	3040	/* now re-arm timer, if required */
2920	if (ev_is_active (&w->timer)) ev_ref (EV_A);	3041	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2921	ev_timer_again (EV_A_ &w->timer);	3042	ev_timer_again (EV_A_ &w->timer);
2922	if (ev_is_active (&w->timer)) ev_unref (EV_A);	3043	if (ev_is_active (&w->timer)) ev_unref (EV_A);
…		…
2930		3051
2931	if (wd < 0)	3052	if (wd < 0)
2932	return;	3053	return;
2933		3054
2934	w->wd = -2;	3055	w->wd = -2;
2935	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3056	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2936	wlist_del (&fs_hash [slot].head, (WL)w);	3057	wlist_del (&fs_hash [slot].head, (WL)w);
2937		3058
2938	/* remove this watcher, if others are watching it, they will rearm */	3059	/* remove this watcher, if others are watching it, they will rearm */
2939	inotify_rm_watch (fs_fd, wd);	3060	inotify_rm_watch (fs_fd, wd);
2940	}	3061	}
…		…
2942	static void noinline	3063	static void noinline
2943	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3064	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2944	{	3065	{
2945	if (slot < 0)	3066	if (slot < 0)
2946	/* overflow, need to check for all hash slots */	3067	/* overflow, need to check for all hash slots */
2947	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3068	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2948	infy_wd (EV_A_ slot, wd, ev);	3069	infy_wd (EV_A_ slot, wd, ev);
2949	else	3070	else
2950	{	3071	{
2951	WL w_;	3072	WL w_;
2952		3073
2953	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3074	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2954	{	3075	{
2955	ev_stat *w = (ev_stat *)w_;	3076	ev_stat *w = (ev_stat *)w_;
2956	w_ = w_->next; /* lets us remove this watcher and all before it */	3077	w_ = w_->next; /* lets us remove this watcher and all before it */
2957		3078
2958	if (w->wd == wd || wd == -1)	3079	if (w->wd == wd || wd == -1)
2959	{	3080	{
2960	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3081	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2961	{	3082	{
2962	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3083	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2963	w->wd = -1;	3084	w->wd = -1;
2964	infy_add (EV_A_ w); /* re-add, no matter what */	3085	infy_add (EV_A_ w); /* re-add, no matter what */
2965	}	3086	}
2966		3087
2967	stat_timer_cb (EV_A_ &w->timer, 0);	3088	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2972		3093
2973	static void	3094	static void
2974	infy_cb (EV_P_ ev_io *w, int revents)	3095	infy_cb (EV_P_ ev_io *w, int revents)
2975	{	3096	{
2976	char buf [EV_INOTIFY_BUFSIZE];	3097	char buf [EV_INOTIFY_BUFSIZE];
2977	struct inotify_event *ev = (struct inotify_event *)buf;
2978	int ofs;	3098	int ofs;
2979	int len = read (fs_fd, buf, sizeof (buf));	3099	int len = read (fs_fd, buf, sizeof (buf));
2980		3100
2981	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3101	for (ofs = 0; ofs < len; )
		3102	{
		3103	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2982	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3104	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3105	ofs += sizeof (struct inotify_event) + ev->len;
		3106	}
2983	}	3107	}
2984		3108
2985	inline_size void	3109	inline_size void
2986	check_2625 (EV_P)	3110	ev_check_2625 (EV_P)
2987	{	3111	{
2988	/* kernels < 2.6.25 are borked	3112	/* kernels < 2.6.25 are borked
2989	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3113	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2990	*/	3114	*/
2991	struct utsname buf;	3115	if (ev_linux_version () < 0x020619)
2992	int major, minor, micro;
2993
2994	if (uname (&buf))
2995	return;
2996
2997	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2998	return;
2999
3000	if (major < 2
3001	|| (major == 2 && minor < 6)
3002	|| (major == 2 && minor == 6 && micro < 25))
3003	return;	3116	return;
3004		3117
3005	fs_2625 = 1;	3118	fs_2625 = 1;
3006	}	3119	}
3007		3120
…		…
3022	if (fs_fd != -2)	3135	if (fs_fd != -2)
3023	return;	3136	return;
3024		3137
3025	fs_fd = -1;	3138	fs_fd = -1;
3026		3139
3027	check_2625 (EV_A);	3140	ev_check_2625 (EV_A);
3028		3141
3029	fs_fd = infy_newfd ();	3142	fs_fd = infy_newfd ();
3030		3143
3031	if (fs_fd >= 0)	3144	if (fs_fd >= 0)
3032	{	3145	{
…		…
3057	ev_io_set (&fs_w, fs_fd, EV_READ);	3170	ev_io_set (&fs_w, fs_fd, EV_READ);
3058	ev_io_start (EV_A_ &fs_w);	3171	ev_io_start (EV_A_ &fs_w);
3059	ev_unref (EV_A);	3172	ev_unref (EV_A);
3060	}	3173	}
3061		3174
3062	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3175	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3063	{	3176	{
3064	WL w_ = fs_hash [slot].head;	3177	WL w_ = fs_hash [slot].head;
3065	fs_hash [slot].head = 0;	3178	fs_hash [slot].head = 0;
3066		3179
3067	while (w_)	3180	while (w_)
…		…
3242		3355
3243	EV_FREQUENT_CHECK;	3356	EV_FREQUENT_CHECK;
3244	}	3357	}
3245	#endif	3358	#endif
3246		3359
		3360	#if EV_PREPARE_ENABLE
3247	void	3361	void
3248	ev_prepare_start (EV_P_ ev_prepare *w)	3362	ev_prepare_start (EV_P_ ev_prepare *w)
3249	{	3363	{
3250	if (expect_false (ev_is_active (w)))	3364	if (expect_false (ev_is_active (w)))
3251	return;	3365	return;
…		…
3277		3391
3278	ev_stop (EV_A_ (W)w);	3392	ev_stop (EV_A_ (W)w);
3279		3393
3280	EV_FREQUENT_CHECK;	3394	EV_FREQUENT_CHECK;
3281	}	3395	}
		3396	#endif
3282		3397
		3398	#if EV_CHECK_ENABLE
3283	void	3399	void
3284	ev_check_start (EV_P_ ev_check *w)	3400	ev_check_start (EV_P_ ev_check *w)
3285	{	3401	{
3286	if (expect_false (ev_is_active (w)))	3402	if (expect_false (ev_is_active (w)))
3287	return;	3403	return;
…		…
3313		3429
3314	ev_stop (EV_A_ (W)w);	3430	ev_stop (EV_A_ (W)w);
3315		3431
3316	EV_FREQUENT_CHECK;	3432	EV_FREQUENT_CHECK;
3317	}	3433	}
		3434	#endif
3318		3435
3319	#if EV_EMBED_ENABLE	3436	#if EV_EMBED_ENABLE
3320	void noinline	3437	void noinline
3321	ev_embed_sweep (EV_P_ ev_embed *w)	3438	ev_embed_sweep (EV_P_ ev_embed *w)
3322	{	3439	{
3323	ev_loop (w->other, EVLOOP_NONBLOCK);	3440	ev_run (w->other, EVRUN_NOWAIT);
3324	}	3441	}
3325		3442
3326	static void	3443	static void
3327	embed_io_cb (EV_P_ ev_io *io, int revents)	3444	embed_io_cb (EV_P_ ev_io *io, int revents)
3328	{	3445	{
3329	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	3446	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3330		3447
3331	if (ev_cb (w))	3448	if (ev_cb (w))
3332	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3449	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3333	else	3450	else
3334	ev_loop (w->other, EVLOOP_NONBLOCK);	3451	ev_run (w->other, EVRUN_NOWAIT);
3335	}	3452	}
3336		3453
3337	static void	3454	static void
3338	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3455	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3339	{	3456	{
…		…
3343	EV_P = w->other;	3460	EV_P = w->other;
3344		3461
3345	while (fdchangecnt)	3462	while (fdchangecnt)
3346	{	3463	{
3347	fd_reify (EV_A);	3464	fd_reify (EV_A);
3348	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3465	ev_run (EV_A_ EVRUN_NOWAIT);
3349	}	3466	}
3350	}	3467	}
3351	}	3468	}
3352		3469
3353	static void	3470	static void
…		…
3359		3476
3360	{	3477	{
3361	EV_P = w->other;	3478	EV_P = w->other;
3362		3479
3363	ev_loop_fork (EV_A);	3480	ev_loop_fork (EV_A);
3364	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3481	ev_run (EV_A_ EVRUN_NOWAIT);
3365	}	3482	}
3366		3483
3367	ev_embed_start (EV_A_ w);	3484	ev_embed_start (EV_A_ w);
3368	}	3485	}
3369		3486
…		…
3417		3534
3418	ev_io_stop (EV_A_ &w->io);	3535	ev_io_stop (EV_A_ &w->io);
3419	ev_prepare_stop (EV_A_ &w->prepare);	3536	ev_prepare_stop (EV_A_ &w->prepare);
3420	ev_fork_stop (EV_A_ &w->fork);	3537	ev_fork_stop (EV_A_ &w->fork);
3421		3538
		3539	ev_stop (EV_A_ (W)w);
		3540
3422	EV_FREQUENT_CHECK;	3541	EV_FREQUENT_CHECK;
3423	}	3542	}
3424	#endif	3543	#endif
3425		3544
3426	#if EV_FORK_ENABLE	3545	#if EV_FORK_ENABLE
…		…
3465	void	3584	void
3466	ev_async_start (EV_P_ ev_async *w)	3585	ev_async_start (EV_P_ ev_async *w)
3467	{	3586	{
3468	if (expect_false (ev_is_active (w)))	3587	if (expect_false (ev_is_active (w)))
3469	return;	3588	return;
		3589
		3590	w->sent = 0;
3470		3591
3471	evpipe_init (EV_A);	3592	evpipe_init (EV_A);
3472		3593
3473	EV_FREQUENT_CHECK;	3594	EV_FREQUENT_CHECK;
3474		3595
…		…
3552	{	3673	{
3553	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3674	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3554		3675
3555	if (expect_false (!once))	3676	if (expect_false (!once))
3556	{	3677	{
3557	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3678	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3558	return;	3679	return;
3559	}	3680	}
3560		3681
3561	once->cb = cb;	3682	once->cb = cb;
3562	once->arg = arg;	3683	once->arg = arg;
…		…
3649	if (types & EV_ASYNC)	3770	if (types & EV_ASYNC)
3650	for (i = asynccnt; i--; )	3771	for (i = asynccnt; i--; )
3651	cb (EV_A_ EV_ASYNC, asyncs [i]);	3772	cb (EV_A_ EV_ASYNC, asyncs [i]);
3652	#endif	3773	#endif
3653		3774
		3775	#if EV_PREPARE_ENABLE
3654	if (types & EV_PREPARE)	3776	if (types & EV_PREPARE)
3655	for (i = preparecnt; i--; )	3777	for (i = preparecnt; i--; )
3656	#if EV_EMBED_ENABLE	3778	# if EV_EMBED_ENABLE
3657	if (ev_cb (prepares [i]) != embed_prepare_cb)	3779	if (ev_cb (prepares [i]) != embed_prepare_cb)
3658	#endif	3780	# endif
3659	cb (EV_A_ EV_PREPARE, prepares [i]);	3781	cb (EV_A_ EV_PREPARE, prepares [i]);
		3782	#endif
3660		3783
		3784	#if EV_CHECK_ENABLE
3661	if (types & EV_CHECK)	3785	if (types & EV_CHECK)
3662	for (i = checkcnt; i--; )	3786	for (i = checkcnt; i--; )
3663	cb (EV_A_ EV_CHECK, checks [i]);	3787	cb (EV_A_ EV_CHECK, checks [i]);
		3788	#endif
3664		3789
		3790	#if EV_SIGNAL_ENABLE
3665	if (types & EV_SIGNAL)	3791	if (types & EV_SIGNAL)
3666	for (i = 0; i < EV_NSIG - 1; ++i)	3792	for (i = 0; i < EV_NSIG - 1; ++i)
3667	for (wl = signals [i].head; wl; )	3793	for (wl = signals [i].head; wl; )
3668	{	3794	{
3669	wn = wl->next;	3795	wn = wl->next;
3670	cb (EV_A_ EV_SIGNAL, wl);	3796	cb (EV_A_ EV_SIGNAL, wl);
3671	wl = wn;	3797	wl = wn;
3672	}	3798	}
		3799	#endif
3673		3800
		3801	#if EV_CHILD_ENABLE
3674	if (types & EV_CHILD)	3802	if (types & EV_CHILD)
3675	for (i = EV_PID_HASHSIZE; i--; )	3803	for (i = (EV_PID_HASHSIZE); i--; )
3676	for (wl = childs [i]; wl; )	3804	for (wl = childs [i]; wl; )
3677	{	3805	{
3678	wn = wl->next;	3806	wn = wl->next;
3679	cb (EV_A_ EV_CHILD, wl);	3807	cb (EV_A_ EV_CHILD, wl);
3680	wl = wn;	3808	wl = wn;
3681	}	3809	}
		3810	#endif
3682	/* EV_STAT 0x00001000 /* stat data changed */	3811	/* EV_STAT 0x00001000 /* stat data changed */
3683	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3812	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3684	}	3813	}
3685	#endif	3814	#endif
3686		3815
3687	#if EV_MULTIPLICITY	3816	#if EV_MULTIPLICITY
3688	#include "ev_wrap.h"	3817	#include "ev_wrap.h"
3689	#endif	3818	#endif
3690		3819
3691	#ifdef __cplusplus	3820	EV_CPP(})
3692	}
3693	#endif
3694		3821

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