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Comparing libev/ev.c (file contents):
Revision 1.336 by root, Wed Mar 10 08:19:38 2010 UTC vs.
Revision 1.378 by root, Mon Jun 13 09:52:36 2011 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
10	* 1. Redistributions of source code must retain the above copyright notice,	10	* 1. Redistributions of source code must retain the above copyright notice,
11	* this list of conditions and the following disclaimer.	11	* this list of conditions and the following disclaimer.
12	*	12	*
13	* 2. Redistributions in binary form must reproduce the above copyright	13	* 2. Redistributions in binary form must reproduce the above copyright
14	* notice, this list of conditions and the following disclaimer in the	14	* notice, this list of conditions and the following disclaimer in the
15	* documentation and/or other materials provided with the distribution.	15	* documentation and/or other materials provided with the distribution.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-	18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO	19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-	20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,	21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
…		…
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
49	# include "config.h"	45	# include "config.h"
50	# endif	46	# endif
		47
		48	#if HAVE_FLOOR
		49	# ifndef EV_USE_FLOOR
		50	# define EV_USE_FLOOR 1
		51	# endif
		52	#endif
51		53
52	# if HAVE_CLOCK_SYSCALL	54	# if HAVE_CLOCK_SYSCALL
53	# ifndef EV_USE_CLOCK_SYSCALL	55	# ifndef EV_USE_CLOCK_SYSCALL
54	# define EV_USE_CLOCK_SYSCALL 1	56	# define EV_USE_CLOCK_SYSCALL 1
55	# ifndef EV_USE_REALTIME	57	# ifndef EV_USE_REALTIME
…		…
77	# ifndef EV_USE_REALTIME	79	# ifndef EV_USE_REALTIME
78	# define EV_USE_REALTIME 0	80	# define EV_USE_REALTIME 0
79	# endif	81	# endif
80	# endif	82	# endif
81		83
		84	# if HAVE_NANOSLEEP
82	# ifndef EV_USE_NANOSLEEP	85	# ifndef EV_USE_NANOSLEEP
83	# if HAVE_NANOSLEEP
84	# define EV_USE_NANOSLEEP 1	86	# define EV_USE_NANOSLEEP EV_FEATURE_OS
		87	# endif
85	# else	88	# else
		89	# undef EV_USE_NANOSLEEP
86	# define EV_USE_NANOSLEEP 0	90	# define EV_USE_NANOSLEEP 0
		91	# endif
		92
		93	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		94	# ifndef EV_USE_SELECT
		95	# define EV_USE_SELECT EV_FEATURE_BACKENDS
87	# endif	96	# endif
		97	# else
		98	# undef EV_USE_SELECT
		99	# define EV_USE_SELECT 0
88	# endif	100	# endif
89		101
		102	# if HAVE_POLL && HAVE_POLL_H
90	# ifndef EV_USE_SELECT	103	# ifndef EV_USE_POLL
91	# if HAVE_SELECT && HAVE_SYS_SELECT_H	104	# define EV_USE_POLL EV_FEATURE_BACKENDS
92	# define EV_USE_SELECT 1
93	# else
94	# define EV_USE_SELECT 0
95	# endif	105	# endif
96	# endif
97
98	# ifndef EV_USE_POLL
99	# if HAVE_POLL && HAVE_POLL_H
100	# define EV_USE_POLL 1
101	# else	106	# else
		107	# undef EV_USE_POLL
102	# define EV_USE_POLL 0	108	# define EV_USE_POLL 0
103	# endif
104	# endif	109	# endif
105		110
106	# ifndef EV_USE_EPOLL
107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	111	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108	# define EV_USE_EPOLL 1	112	# ifndef EV_USE_EPOLL
109	# else	113	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110	# define EV_USE_EPOLL 0
111	# endif	114	# endif
		115	# else
		116	# undef EV_USE_EPOLL
		117	# define EV_USE_EPOLL 0
112	# endif	118	# endif
113		119
114	# ifndef EV_USE_KQUEUE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H	120	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116	# define EV_USE_KQUEUE 1	121	# ifndef EV_USE_KQUEUE
117	# else	122	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118	# define EV_USE_KQUEUE 0
119	# endif	123	# endif
		124	# else
		125	# undef EV_USE_KQUEUE
		126	# define EV_USE_KQUEUE 0
120	# endif	127	# endif
121		128
122	# ifndef EV_USE_PORT
123	# if HAVE_PORT_H && HAVE_PORT_CREATE	129	# if HAVE_PORT_H && HAVE_PORT_CREATE
124	# define EV_USE_PORT 1	130	# ifndef EV_USE_PORT
125	# else	131	# define EV_USE_PORT EV_FEATURE_BACKENDS
126	# define EV_USE_PORT 0
127	# endif	132	# endif
		133	# else
		134	# undef EV_USE_PORT
		135	# define EV_USE_PORT 0
128	# endif	136	# endif
129		137
130	# ifndef EV_USE_INOTIFY
131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	138	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132	# define EV_USE_INOTIFY 1	139	# ifndef EV_USE_INOTIFY
133	# else
134	# define EV_USE_INOTIFY 0	140	# define EV_USE_INOTIFY EV_FEATURE_OS
135	# endif	141	# endif
		142	# else
		143	# undef EV_USE_INOTIFY
		144	# define EV_USE_INOTIFY 0
136	# endif	145	# endif
137		146
138	# ifndef EV_USE_SIGNALFD
139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H	147	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140	# define EV_USE_SIGNALFD 1	148	# ifndef EV_USE_SIGNALFD
141	# else
142	# define EV_USE_SIGNALFD 0	149	# define EV_USE_SIGNALFD EV_FEATURE_OS
143	# endif	150	# endif
		151	# else
		152	# undef EV_USE_SIGNALFD
		153	# define EV_USE_SIGNALFD 0
144	# endif	154	# endif
145		155
		156	# if HAVE_EVENTFD
146	# ifndef EV_USE_EVENTFD	157	# ifndef EV_USE_EVENTFD
147	# if HAVE_EVENTFD
148	# define EV_USE_EVENTFD 1	158	# define EV_USE_EVENTFD EV_FEATURE_OS
149	# else
150	# define EV_USE_EVENTFD 0
151	# endif	159	# endif
		160	# else
		161	# undef EV_USE_EVENTFD
		162	# define EV_USE_EVENTFD 0
152	# endif	163	# endif
153		164
154	#endif	165	#endif
155		166
156	#include <math.h>
157	#include <stdlib.h>	167	#include <stdlib.h>
158	#include <string.h>	168	#include <string.h>
159	#include <fcntl.h>	169	#include <fcntl.h>
160	#include <stddef.h>	170	#include <stddef.h>
161		171
…		…
172	#ifdef EV_H	182	#ifdef EV_H
173	# include EV_H	183	# include EV_H
174	#else	184	#else
175	# include "ev.h"	185	# include "ev.h"
176	#endif	186	#endif
		187
		188	EV_CPP(extern "C" {)
177		189
178	#ifndef _WIN32	190	#ifndef _WIN32
179	# include <sys/time.h>	191	# include <sys/time.h>
180	# include <sys/wait.h>	192	# include <sys/wait.h>
181	# include <unistd.h>	193	# include <unistd.h>
…		…
186	# ifndef EV_SELECT_IS_WINSOCKET	198	# ifndef EV_SELECT_IS_WINSOCKET
187	# define EV_SELECT_IS_WINSOCKET 1	199	# define EV_SELECT_IS_WINSOCKET 1
188	# endif	200	# endif
189	# undef EV_AVOID_STDIO	201	# undef EV_AVOID_STDIO
190	#endif	202	#endif
		203
		204	/* OS X, in its infinite idiocy, actually HARDCODES
		205	* a limit of 1024 into their select. Where people have brains,
		206	* OS X engineers apparently have a vacuum. Or maybe they were
		207	* ordered to have a vacuum, or they do anything for money.
		208	* This might help. Or not.
		209	*/
		210	#define _DARWIN_UNLIMITED_SELECT 1
191		211
192	/* this block tries to deduce configuration from header-defined symbols and defaults */	212	/* this block tries to deduce configuration from header-defined symbols and defaults */
193		213
194	/* try to deduce the maximum number of signals on this platform */	214	/* try to deduce the maximum number of signals on this platform */
195	#if defined (EV_NSIG)	215	#if defined (EV_NSIG)
…		…
217	/* to make it compile regardless, just remove the above line, */	237	/* to make it compile regardless, just remove the above line, */
218	/* but consider reporting it, too! :) */	238	/* but consider reporting it, too! :) */
219	# define EV_NSIG 65	239	# define EV_NSIG 65
220	#endif	240	#endif
221		241
		242	#ifndef EV_USE_FLOOR
		243	# define EV_USE_FLOOR 0
		244	#endif
		245
222	#ifndef EV_USE_CLOCK_SYSCALL	246	#ifndef EV_USE_CLOCK_SYSCALL
223	# if __linux && __GLIBC__ >= 2	247	# if __linux && __GLIBC__ >= 2
224	# define EV_USE_CLOCK_SYSCALL 1	248	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
225	# else	249	# else
226	# define EV_USE_CLOCK_SYSCALL 0	250	# define EV_USE_CLOCK_SYSCALL 0
227	# endif	251	# endif
228	#endif	252	#endif
229		253
230	#ifndef EV_USE_MONOTONIC	254	#ifndef EV_USE_MONOTONIC
231	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	255	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
232	# define EV_USE_MONOTONIC 1	256	# define EV_USE_MONOTONIC EV_FEATURE_OS
233	# else	257	# else
234	# define EV_USE_MONOTONIC 0	258	# define EV_USE_MONOTONIC 0
235	# endif	259	# endif
236	#endif	260	#endif
237		261
…		…
239	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	263	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
240	#endif	264	#endif
241		265
242	#ifndef EV_USE_NANOSLEEP	266	#ifndef EV_USE_NANOSLEEP
243	# if _POSIX_C_SOURCE >= 199309L	267	# if _POSIX_C_SOURCE >= 199309L
244	# define EV_USE_NANOSLEEP 1	268	# define EV_USE_NANOSLEEP EV_FEATURE_OS
245	# else	269	# else
246	# define EV_USE_NANOSLEEP 0	270	# define EV_USE_NANOSLEEP 0
247	# endif	271	# endif
248	#endif	272	#endif
249		273
250	#ifndef EV_USE_SELECT	274	#ifndef EV_USE_SELECT
251	# define EV_USE_SELECT 1	275	# define EV_USE_SELECT EV_FEATURE_BACKENDS
252	#endif	276	#endif
253		277
254	#ifndef EV_USE_POLL	278	#ifndef EV_USE_POLL
255	# ifdef _WIN32	279	# ifdef _WIN32
256	# define EV_USE_POLL 0	280	# define EV_USE_POLL 0
257	# else	281	# else
258	# define EV_USE_POLL 1	282	# define EV_USE_POLL EV_FEATURE_BACKENDS
259	# endif	283	# endif
260	#endif	284	#endif
261		285
262	#ifndef EV_USE_EPOLL	286	#ifndef EV_USE_EPOLL
263	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	287	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
264	# define EV_USE_EPOLL 1	288	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
265	# else	289	# else
266	# define EV_USE_EPOLL 0	290	# define EV_USE_EPOLL 0
267	# endif	291	# endif
268	#endif	292	#endif
269		293
…		…
275	# define EV_USE_PORT 0	299	# define EV_USE_PORT 0
276	#endif	300	#endif
277		301
278	#ifndef EV_USE_INOTIFY	302	#ifndef EV_USE_INOTIFY
279	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	303	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
280	# define EV_USE_INOTIFY 1	304	# define EV_USE_INOTIFY EV_FEATURE_OS
281	# else	305	# else
282	# define EV_USE_INOTIFY 0	306	# define EV_USE_INOTIFY 0
283	# endif	307	# endif
284	#endif	308	#endif
285		309
286	#ifndef EV_PID_HASHSIZE	310	#ifndef EV_PID_HASHSIZE
287	# if EV_MINIMAL	311	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
288	# define EV_PID_HASHSIZE 1
289	# else
290	# define EV_PID_HASHSIZE 16
291	# endif
292	#endif	312	#endif
293		313
294	#ifndef EV_INOTIFY_HASHSIZE	314	#ifndef EV_INOTIFY_HASHSIZE
295	# if EV_MINIMAL	315	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
296	# define EV_INOTIFY_HASHSIZE 1
297	# else
298	# define EV_INOTIFY_HASHSIZE 16
299	# endif
300	#endif	316	#endif
301		317
302	#ifndef EV_USE_EVENTFD	318	#ifndef EV_USE_EVENTFD
303	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	319	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
304	# define EV_USE_EVENTFD 1	320	# define EV_USE_EVENTFD EV_FEATURE_OS
305	# else	321	# else
306	# define EV_USE_EVENTFD 0	322	# define EV_USE_EVENTFD 0
307	# endif	323	# endif
308	#endif	324	#endif
309		325
310	#ifndef EV_USE_SIGNALFD	326	#ifndef EV_USE_SIGNALFD
311	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	327	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
312	# define EV_USE_SIGNALFD 1	328	# define EV_USE_SIGNALFD EV_FEATURE_OS
313	# else	329	# else
314	# define EV_USE_SIGNALFD 0	330	# define EV_USE_SIGNALFD 0
315	# endif	331	# endif
316	#endif	332	#endif
317		333
…		…
320	# define EV_USE_4HEAP 1	336	# define EV_USE_4HEAP 1
321	# define EV_HEAP_CACHE_AT 1	337	# define EV_HEAP_CACHE_AT 1
322	#endif	338	#endif
323		339
324	#ifndef EV_VERIFY	340	#ifndef EV_VERIFY
325	# define EV_VERIFY !EV_MINIMAL	341	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
326	#endif	342	#endif
327		343
328	#ifndef EV_USE_4HEAP	344	#ifndef EV_USE_4HEAP
329	# define EV_USE_4HEAP !EV_MINIMAL	345	# define EV_USE_4HEAP EV_FEATURE_DATA
330	#endif	346	#endif
331		347
332	#ifndef EV_HEAP_CACHE_AT	348	#ifndef EV_HEAP_CACHE_AT
333	# define EV_HEAP_CACHE_AT !EV_MINIMAL	349	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
334	#endif	350	#endif
335		351
336	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	352	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
337	/* which makes programs even slower. might work on other unices, too. */	353	/* which makes programs even slower. might work on other unices, too. */
338	#if EV_USE_CLOCK_SYSCALL	354	#if EV_USE_CLOCK_SYSCALL
…		…
369	# undef EV_USE_INOTIFY	385	# undef EV_USE_INOTIFY
370	# define EV_USE_INOTIFY 0	386	# define EV_USE_INOTIFY 0
371	#endif	387	#endif
372		388
373	#if !EV_USE_NANOSLEEP	389	#if !EV_USE_NANOSLEEP
374	# ifndef _WIN32	390	/* hp-ux has it in sys/time.h, which we unconditionally include above */
		391	# if !defined(_WIN32) && !defined(__hpux)
375	# include <sys/select.h>	392	# include <sys/select.h>
376	# endif	393	# endif
377	#endif	394	#endif
378		395
379	#if EV_USE_INOTIFY	396	#if EV_USE_INOTIFY
380	# include <sys/utsname.h>
381	# include <sys/statfs.h>	397	# include <sys/statfs.h>
382	# include <sys/inotify.h>	398	# include <sys/inotify.h>
383	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	399	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
384	# ifndef IN_DONT_FOLLOW	400	# ifndef IN_DONT_FOLLOW
385	# undef EV_USE_INOTIFY	401	# undef EV_USE_INOTIFY
…		…
402	# define EFD_CLOEXEC O_CLOEXEC	418	# define EFD_CLOEXEC O_CLOEXEC
403	# else	419	# else
404	# define EFD_CLOEXEC 02000000	420	# define EFD_CLOEXEC 02000000
405	# endif	421	# endif
406	# endif	422	# endif
407	# ifdef __cplusplus
408	extern "C" {
409	# endif
410	int (eventfd) (unsigned int initval, int flags);	423	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
411	# ifdef __cplusplus
412	}
413	# endif
414	#endif	424	#endif
415		425
416	#if EV_USE_SIGNALFD	426	#if EV_USE_SIGNALFD
417	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	427	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
418	# include <stdint.h>	428	# include <stdint.h>
…		…
424	# define SFD_CLOEXEC O_CLOEXEC	434	# define SFD_CLOEXEC O_CLOEXEC
425	# else	435	# else
426	# define SFD_CLOEXEC 02000000	436	# define SFD_CLOEXEC 02000000
427	# endif	437	# endif
428	# endif	438	# endif
429	# ifdef __cplusplus
430	extern "C" {
431	# endif
432	int signalfd (int fd, const sigset_t *mask, int flags);	439	EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
433		440
434	struct signalfd_siginfo	441	struct signalfd_siginfo
435	{	442	{
436	uint32_t ssi_signo;	443	uint32_t ssi_signo;
437	char pad[128 - sizeof (uint32_t)];	444	char pad[128 - sizeof (uint32_t)];
438	};	445	};
439	# ifdef __cplusplus
440	}
441	# endif	446	#endif
442	#endif
443
444		447
445	/**/	448	/**/
446		449
447	#if EV_VERIFY >= 3	450	#if EV_VERIFY >= 3
448	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	451	# define EV_FREQUENT_CHECK ev_verify (EV_A)
449	#else	452	#else
450	# define EV_FREQUENT_CHECK do { } while (0)	453	# define EV_FREQUENT_CHECK do { } while (0)
451	#endif	454	#endif
452		455
453	/*	456	/*
454	* This is used to avoid floating point rounding problems.	457	* This is used to work around floating point rounding problems.
455	* It is added to ev_rt_now when scheduling periodics
456	* to ensure progress, time-wise, even when rounding
457	* errors are against us.
458	* This value is good at least till the year 4000.	458	* This value is good at least till the year 4000.
459	* Better solutions welcome.
460	*/	459	*/
461	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	460	#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
		461	/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
462		462
463	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	463	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
		465
		466	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
		467	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
465		468
466	#if __GNUC__ >= 4	469	#if __GNUC__ >= 4
467	# define expect(expr,value) __builtin_expect ((expr),(value))	470	# define expect(expr,value) __builtin_expect ((expr),(value))
468	# define noinline __attribute__ ((noinline))	471	# define noinline __attribute__ ((noinline))
469	#else	472	#else
…		…
476		479
477	#define expect_false(expr) expect ((expr) != 0, 0)	480	#define expect_false(expr) expect ((expr) != 0, 0)
478	#define expect_true(expr) expect ((expr) != 0, 1)	481	#define expect_true(expr) expect ((expr) != 0, 1)
479	#define inline_size static inline	482	#define inline_size static inline
480		483
481	#if EV_MINIMAL	484	#if EV_FEATURE_CODE
		485	# define inline_speed static inline
		486	#else
482	# define inline_speed static noinline	487	# define inline_speed static noinline
483	#else
484	# define inline_speed static inline
485	#endif	488	#endif
486		489
487	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	490	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
488		491
489	#if EV_MINPRI == EV_MAXPRI	492	#if EV_MINPRI == EV_MAXPRI
…		…
502	#define ev_active(w) ((W)(w))->active	505	#define ev_active(w) ((W)(w))->active
503	#define ev_at(w) ((WT)(w))->at	506	#define ev_at(w) ((WT)(w))->at
504		507
505	#if EV_USE_REALTIME	508	#if EV_USE_REALTIME
506	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	509	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
507	/* giving it a reasonably high chance of working on typical architetcures */	510	/* giving it a reasonably high chance of working on typical architectures */
508	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */	511	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
509	#endif	512	#endif
510		513
511	#if EV_USE_MONOTONIC	514	#if EV_USE_MONOTONIC
512	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	515	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
…		…
523	#endif	526	#endif
524		527
525	#ifdef _WIN32	528	#ifdef _WIN32
526	# include "ev_win32.c"	529	# include "ev_win32.c"
527	#endif	530	#endif
		531
		532	/*****************************************************************************/
		533
		534	/* define a suitable floor function (only used by periodics atm) */
		535
		536	#if EV_USE_FLOOR
		537	# include <math.h>
		538	# define ev_floor(v) floor (v)
		539	#else
		540
		541	#include <float.h>
		542
		543	/* a floor() replacement function, should be independent of ev_tstamp type */
		544	static ev_tstamp noinline
		545	ev_floor (ev_tstamp v)
		546	{
		547	/* the choice of shift factor is not terribly important */
		548	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
		549	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
		550	#else
		551	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
		552	#endif
		553
		554	/* argument too large for an unsigned long? */
		555	if (expect_false (v >= shift))
		556	{
		557	ev_tstamp f;
		558
		559	if (v == v - 1.)
		560	return v; /* very large number */
		561
		562	f = shift * ev_floor (v * (1. / shift));
		563	return f + ev_floor (v - f);
		564	}
		565
		566	/* special treatment for negative args? */
		567	if (expect_false (v < 0.))
		568	{
		569	ev_tstamp f = -ev_floor (-v);
		570
		571	return f - (f == v ? 0 : 1);
		572	}
		573
		574	/* fits into an unsigned long */
		575	return (unsigned long)v;
		576	}
		577
		578	#endif
		579
		580	/*****************************************************************************/
		581
		582	#ifdef __linux
		583	# include <sys/utsname.h>
		584	#endif
		585
		586	static unsigned int noinline
		587	ev_linux_version (void)
		588	{
		589	#ifdef __linux
		590	unsigned int v = 0;
		591	struct utsname buf;
		592	int i;
		593	char *p = buf.release;
		594
		595	if (uname (&buf))
		596	return 0;
		597
		598	for (i = 3+1; --i; )
		599	{
		600	unsigned int c = 0;
		601
		602	for (;;)
		603	{
		604	if (*p >= '0' && *p <= '9')
		605	c = c * 10 + *p++ - '0';
		606	else
		607	{
		608	p += *p == '.';
		609	break;
		610	}
		611	}
		612
		613	v = (v << 8) | c;
		614	}
		615
		616	return v;
		617	#else
		618	return 0;
		619	#endif
		620	}
528		621
529	/*****************************************************************************/	622	/*****************************************************************************/
530		623
531	#if EV_AVOID_STDIO	624	#if EV_AVOID_STDIO
532	static void noinline	625	static void noinline
…		…
553	if (syserr_cb)	646	if (syserr_cb)
554	syserr_cb (msg);	647	syserr_cb (msg);
555	else	648	else
556	{	649	{
557	#if EV_AVOID_STDIO	650	#if EV_AVOID_STDIO
558	const char *err = strerror (errno);
559
560	ev_printerr (msg);	651	ev_printerr (msg);
561	ev_printerr (": ");	652	ev_printerr (": ");
562	ev_printerr (err);	653	ev_printerr (strerror (errno));
563	ev_printerr ("\n");	654	ev_printerr ("\n");
564	#else	655	#else
565	perror (msg);	656	perror (msg);
566	#endif	657	#endif
567	abort ();	658	abort ();
…		…
601	ptr = alloc (ptr, size);	692	ptr = alloc (ptr, size);
602		693
603	if (!ptr && size)	694	if (!ptr && size)
604	{	695	{
605	#if EV_AVOID_STDIO	696	#if EV_AVOID_STDIO
606	ev_printerr ("libev: memory allocation failed, aborting.\n");	697	ev_printerr ("(libev) memory allocation failed, aborting.\n");
607	#else	698	#else
608	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	699	fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
609	#endif	700	#endif
610	abort ();	701	abort ();
611	}	702	}
612		703
613	return ptr;	704	return ptr;
…		…
630	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	721	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
631	unsigned char unused;	722	unsigned char unused;
632	#if EV_USE_EPOLL	723	#if EV_USE_EPOLL
633	unsigned int egen; /* generation counter to counter epoll bugs */	724	unsigned int egen; /* generation counter to counter epoll bugs */
634	#endif	725	#endif
635	#if EV_SELECT_IS_WINSOCKET	726	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
636	SOCKET handle;	727	SOCKET handle;
		728	#endif
		729	#if EV_USE_IOCP
		730	OVERLAPPED or, ow;
637	#endif	731	#endif
638	} ANFD;	732	} ANFD;
639		733
640	/* stores the pending event set for a given watcher */	734	/* stores the pending event set for a given watcher */
641	typedef struct	735	typedef struct
…		…
696		790
697	static int ev_default_loop_ptr;	791	static int ev_default_loop_ptr;
698		792
699	#endif	793	#endif
700		794
701	#if EV_MINIMAL < 2	795	#if EV_FEATURE_API
702	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	796	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
703	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	797	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
704	# define EV_INVOKE_PENDING invoke_cb (EV_A)	798	# define EV_INVOKE_PENDING invoke_cb (EV_A)
705	#else	799	#else
706	# define EV_RELEASE_CB (void)0	800	# define EV_RELEASE_CB (void)0
707	# define EV_ACQUIRE_CB (void)0	801	# define EV_ACQUIRE_CB (void)0
708	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	802	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
709	#endif	803	#endif
710		804
711	#define EVUNLOOP_RECURSE 0x80	805	#define EVBREAK_RECURSE 0x80
712		806
713	/*****************************************************************************/	807	/*****************************************************************************/
714		808
715	#ifndef EV_HAVE_EV_TIME	809	#ifndef EV_HAVE_EV_TIME
716	ev_tstamp	810	ev_tstamp
…		…
760	if (delay > 0.)	854	if (delay > 0.)
761	{	855	{
762	#if EV_USE_NANOSLEEP	856	#if EV_USE_NANOSLEEP
763	struct timespec ts;	857	struct timespec ts;
764		858
765	ts.tv_sec = (time_t)delay;	859	EV_TS_SET (ts, delay);
766	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
767
768	nanosleep (&ts, 0);	860	nanosleep (&ts, 0);
769	#elif defined(_WIN32)	861	#elif defined(_WIN32)
770	Sleep ((unsigned long)(delay * 1e3));	862	Sleep ((unsigned long)(delay * 1e3));
771	#else	863	#else
772	struct timeval tv;	864	struct timeval tv;
773		865
774	tv.tv_sec = (time_t)delay;
775	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
776
777	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	866	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
778	/* something not guaranteed by newer posix versions, but guaranteed */	867	/* something not guaranteed by newer posix versions, but guaranteed */
779	/* by older ones */	868	/* by older ones */
		869	EV_TV_SET (tv, delay);
780	select (0, 0, 0, 0, &tv);	870	select (0, 0, 0, 0, &tv);
781	#endif	871	#endif
782	}	872	}
783	}	873	}
784		874
785	/*****************************************************************************/	875	/*****************************************************************************/
786		876
787	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	877	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
788		878
789	/* find a suitable new size for the given array, */	879	/* find a suitable new size for the given array, */
790	/* hopefully by rounding to a ncie-to-malloc size */	880	/* hopefully by rounding to a nice-to-malloc size */
791	inline_size int	881	inline_size int
792	array_nextsize (int elem, int cur, int cnt)	882	array_nextsize (int elem, int cur, int cnt)
793	{	883	{
794	int ncur = cur + 1;	884	int ncur = cur + 1;
795		885
…		…
891	}	981	}
892		982
893	/*****************************************************************************/	983	/*****************************************************************************/
894		984
895	inline_speed void	985	inline_speed void
896	fd_event_nc (EV_P_ int fd, int revents)	986	fd_event_nocheck (EV_P_ int fd, int revents)
897	{	987	{
898	ANFD *anfd = anfds + fd;	988	ANFD *anfd = anfds + fd;
899	ev_io *w;	989	ev_io *w;
900		990
901	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	991	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
913	fd_event (EV_P_ int fd, int revents)	1003	fd_event (EV_P_ int fd, int revents)
914	{	1004	{
915	ANFD *anfd = anfds + fd;	1005	ANFD *anfd = anfds + fd;
916		1006
917	if (expect_true (!anfd->reify))	1007	if (expect_true (!anfd->reify))
918	fd_event_nc (EV_A_ fd, revents);	1008	fd_event_nocheck (EV_A_ fd, revents);
919	}	1009	}
920		1010
921	void	1011	void
922	ev_feed_fd_event (EV_P_ int fd, int revents)	1012	ev_feed_fd_event (EV_P_ int fd, int revents)
923	{	1013	{
924	if (fd >= 0 && fd < anfdmax)	1014	if (fd >= 0 && fd < anfdmax)
925	fd_event_nc (EV_A_ fd, revents);	1015	fd_event_nocheck (EV_A_ fd, revents);
926	}	1016	}
927		1017
928	/* make sure the external fd watch events are in-sync */	1018	/* make sure the external fd watch events are in-sync */
929	/* with the kernel/libev internal state */	1019	/* with the kernel/libev internal state */
930	inline_size void	1020	inline_size void
931	fd_reify (EV_P)	1021	fd_reify (EV_P)
932	{	1022	{
933	int i;	1023	int i;
934		1024
		1025	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
		1026	for (i = 0; i < fdchangecnt; ++i)
		1027	{
		1028	int fd = fdchanges [i];
		1029	ANFD *anfd = anfds + fd;
		1030
		1031	if (anfd->reify & EV__IOFDSET && anfd->head)
		1032	{
		1033	SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
		1034
		1035	if (handle != anfd->handle)
		1036	{
		1037	unsigned long arg;
		1038
		1039	assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
		1040
		1041	/* handle changed, but fd didn't - we need to do it in two steps */
		1042	backend_modify (EV_A_ fd, anfd->events, 0);
		1043	anfd->events = 0;
		1044	anfd->handle = handle;
		1045	}
		1046	}
		1047	}
		1048	#endif
		1049
935	for (i = 0; i < fdchangecnt; ++i)	1050	for (i = 0; i < fdchangecnt; ++i)
936	{	1051	{
937	int fd = fdchanges [i];	1052	int fd = fdchanges [i];
938	ANFD *anfd = anfds + fd;	1053	ANFD *anfd = anfds + fd;
939	ev_io *w;	1054	ev_io *w;
940		1055
941	unsigned char events = 0;	1056	unsigned char o_events = anfd->events;
		1057	unsigned char o_reify = anfd->reify;
942		1058
943	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	1059	anfd->reify = 0;
944	events |= (unsigned char)w->events;
945		1060
946	#if EV_SELECT_IS_WINSOCKET	1061	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
947	if (events)
948	{	1062	{
949	unsigned long arg;	1063	anfd->events = 0;
950	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	1064
951	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	1065	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
		1066	anfd->events |= (unsigned char)w->events;
		1067
		1068	if (o_events != anfd->events)
		1069	o_reify = EV__IOFDSET; /* actually |= */
952	}	1070	}
953	#endif
954		1071
955	{	1072	if (o_reify & EV__IOFDSET)
956	unsigned char o_events = anfd->events;
957	unsigned char o_reify = anfd->reify;
958
959	anfd->reify = 0;
960	anfd->events = events;
961
962	if (o_events != events || o_reify & EV__IOFDSET)
963	backend_modify (EV_A_ fd, o_events, events);	1073	backend_modify (EV_A_ fd, o_events, anfd->events);
964	}
965	}	1074	}
966		1075
967	fdchangecnt = 0;	1076	fdchangecnt = 0;
968	}	1077	}
969		1078
…		…
1062	}	1171	}
1063		1172
1064	/*****************************************************************************/	1173	/*****************************************************************************/
1065		1174
1066	/*	1175	/*
1067	* the heap functions want a real array index. array index 0 uis guaranteed to not	1176	* the heap functions want a real array index. array index 0 is guaranteed to not
1068	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives	1177	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1069	* the branching factor of the d-tree.	1178	* the branching factor of the d-tree.
1070	*/	1179	*/
1071		1180
1072	/*	1181	/*
…		…
1259	inline_size void	1368	inline_size void
1260	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1369	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1261	{	1370	{
1262	if (!*flag)	1371	if (!*flag)
1263	{	1372	{
1264	int old_errno = errno; /* save errno because write might clobber it */
1265	char dummy;
1266
1267	*flag = 1;	1373	*flag = 1;
1268		1374
		1375	pipe_write_skipped = 1;
		1376
		1377	if (pipe_write_wanted)
		1378	{
		1379	int old_errno = errno; /* save errno because write will clobber it */
		1380	char dummy;
		1381
		1382	pipe_write_skipped = 0;
		1383
1269	#if EV_USE_EVENTFD	1384	#if EV_USE_EVENTFD
1270	if (evfd >= 0)	1385	if (evfd >= 0)
1271	{	1386	{
1272	uint64_t counter = 1;	1387	uint64_t counter = 1;
1273	write (evfd, &counter, sizeof (uint64_t));	1388	write (evfd, &counter, sizeof (uint64_t));
		1389	}
		1390	else
		1391	#endif
		1392	{
		1393	/* win32 people keep sending patches that change this write() to send() */
		1394	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1395	/* so when you think this write should be a send instead, please find out */
		1396	/* where your send() is from - it's definitely not the microsoft send, and */
		1397	/* tell me. thank you. */
		1398	write (evpipe [1], &dummy, 1);
		1399	}
		1400
		1401	errno = old_errno;
1274	}	1402	}
1275	else
1276	#endif
1277	write (evpipe [1], &dummy, 1);
1278
1279	errno = old_errno;
1280	}	1403	}
1281	}	1404	}
1282		1405
1283	/* called whenever the libev signal pipe */	1406	/* called whenever the libev signal pipe */
1284	/* got some events (signal, async) */	1407	/* got some events (signal, async) */
1285	static void	1408	static void
1286	pipecb (EV_P_ ev_io *iow, int revents)	1409	pipecb (EV_P_ ev_io *iow, int revents)
1287	{	1410	{
1288	int i;	1411	int i;
1289		1412
		1413	if (revents & EV_READ)
		1414	{
1290	#if EV_USE_EVENTFD	1415	#if EV_USE_EVENTFD
1291	if (evfd >= 0)	1416	if (evfd >= 0)
1292	{	1417	{
1293	uint64_t counter;	1418	uint64_t counter;
1294	read (evfd, &counter, sizeof (uint64_t));	1419	read (evfd, &counter, sizeof (uint64_t));
1295	}	1420	}
1296	else	1421	else
1297	#endif	1422	#endif
1298	{	1423	{
1299	char dummy;	1424	char dummy;
		1425	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1300	read (evpipe [0], &dummy, 1);	1426	read (evpipe [0], &dummy, 1);
		1427	}
1301	}	1428	}
1302		1429
		1430	pipe_write_skipped = 0;
		1431
		1432	#if EV_SIGNAL_ENABLE
1303	if (sig_pending)	1433	if (sig_pending)
1304	{	1434	{
1305	sig_pending = 0;	1435	sig_pending = 0;
1306		1436
1307	for (i = EV_NSIG - 1; i--; )	1437	for (i = EV_NSIG - 1; i--; )
1308	if (expect_false (signals [i].pending))	1438	if (expect_false (signals [i].pending))
1309	ev_feed_signal_event (EV_A_ i + 1);	1439	ev_feed_signal_event (EV_A_ i + 1);
1310	}	1440	}
		1441	#endif
1311		1442
1312	#if EV_ASYNC_ENABLE	1443	#if EV_ASYNC_ENABLE
1313	if (async_pending)	1444	if (async_pending)
1314	{	1445	{
1315	async_pending = 0;	1446	async_pending = 0;
…		…
1324	#endif	1455	#endif
1325	}	1456	}
1326		1457
1327	/*****************************************************************************/	1458	/*****************************************************************************/
1328		1459
		1460	void
		1461	ev_feed_signal (int signum)
		1462	{
		1463	#if EV_MULTIPLICITY
		1464	EV_P = signals [signum - 1].loop;
		1465
		1466	if (!EV_A)
		1467	return;
		1468	#endif
		1469
		1470	evpipe_init (EV_A);
		1471
		1472	signals [signum - 1].pending = 1;
		1473	evpipe_write (EV_A_ &sig_pending);
		1474	}
		1475
1329	static void	1476	static void
1330	ev_sighandler (int signum)	1477	ev_sighandler (int signum)
1331	{	1478	{
1332	#if EV_MULTIPLICITY
1333	EV_P = signals [signum - 1].loop;
1334	#endif
1335
1336	#ifdef _WIN32	1479	#ifdef _WIN32
1337	signal (signum, ev_sighandler);	1480	signal (signum, ev_sighandler);
1338	#endif	1481	#endif
1339		1482
1340	signals [signum - 1].pending = 1;	1483	ev_feed_signal (signum);
1341	evpipe_write (EV_A_ &sig_pending);
1342	}	1484	}
1343		1485
1344	void noinline	1486	void noinline
1345	ev_feed_signal_event (EV_P_ int signum)	1487	ev_feed_signal_event (EV_P_ int signum)
1346	{	1488	{
…		…
1403	child_reap (EV_P_ int chain, int pid, int status)	1545	child_reap (EV_P_ int chain, int pid, int status)
1404	{	1546	{
1405	ev_child *w;	1547	ev_child *w;
1406	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1548	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1407		1549
1408	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1550	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1409	{	1551	{
1410	if ((w->pid == pid || !w->pid)	1552	if ((w->pid == pid || !w->pid)
1411	&& (!traced || (w->flags & 1)))	1553	&& (!traced || (w->flags & 1)))
1412	{	1554	{
1413	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1555	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
…		…
1438	/* make sure we are called again until all children have been reaped */	1580	/* make sure we are called again until all children have been reaped */
1439	/* we need to do it this way so that the callback gets called before we continue */	1581	/* we need to do it this way so that the callback gets called before we continue */
1440	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1582	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1441		1583
1442	child_reap (EV_A_ pid, pid, status);	1584	child_reap (EV_A_ pid, pid, status);
1443	if (EV_PID_HASHSIZE > 1)	1585	if ((EV_PID_HASHSIZE) > 1)
1444	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1586	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1445	}	1587	}
1446		1588
1447	#endif	1589	#endif
1448		1590
1449	/*****************************************************************************/	1591	/*****************************************************************************/
1450		1592
		1593	#if EV_USE_IOCP
		1594	# include "ev_iocp.c"
		1595	#endif
1451	#if EV_USE_PORT	1596	#if EV_USE_PORT
1452	# include "ev_port.c"	1597	# include "ev_port.c"
1453	#endif	1598	#endif
1454	#if EV_USE_KQUEUE	1599	#if EV_USE_KQUEUE
1455	# include "ev_kqueue.c"	1600	# include "ev_kqueue.c"
…		…
1515	#ifdef __APPLE__	1660	#ifdef __APPLE__
1516	/* only select works correctly on that "unix-certified" platform */	1661	/* only select works correctly on that "unix-certified" platform */
1517	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1662	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1518	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1663	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1519	#endif	1664	#endif
		1665	#ifdef __FreeBSD__
		1666	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1667	#endif
1520		1668
1521	return flags;	1669	return flags;
1522	}	1670	}
1523		1671
1524	unsigned int	1672	unsigned int
1525	ev_embeddable_backends (void)	1673	ev_embeddable_backends (void)
1526	{	1674	{
1527	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	1675	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1528		1676
1529	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	1677	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1530	/* please fix it and tell me how to detect the fix */	1678	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1531	flags &= ~EVBACKEND_EPOLL;	1679	flags &= ~EVBACKEND_EPOLL;
1532		1680
1533	return flags;	1681	return flags;
1534	}	1682	}
1535		1683
1536	unsigned int	1684	unsigned int
1537	ev_backend (EV_P)	1685	ev_backend (EV_P)
1538	{	1686	{
1539	return backend;	1687	return backend;
1540	}	1688	}
1541		1689
1542	#if EV_MINIMAL < 2	1690	#if EV_FEATURE_API
1543	unsigned int	1691	unsigned int
1544	ev_loop_count (EV_P)	1692	ev_iteration (EV_P)
1545	{	1693	{
1546	return loop_count;	1694	return loop_count;
1547	}	1695	}
1548		1696
1549	unsigned int	1697	unsigned int
1550	ev_loop_depth (EV_P)	1698	ev_depth (EV_P)
1551	{	1699	{
1552	return loop_depth;	1700	return loop_depth;
1553	}	1701	}
1554		1702
1555	void	1703	void
…		…
1592	static void noinline	1740	static void noinline
1593	loop_init (EV_P_ unsigned int flags)	1741	loop_init (EV_P_ unsigned int flags)
1594	{	1742	{
1595	if (!backend)	1743	if (!backend)
1596	{	1744	{
		1745	origflags = flags;
		1746
1597	#if EV_USE_REALTIME	1747	#if EV_USE_REALTIME
1598	if (!have_realtime)	1748	if (!have_realtime)
1599	{	1749	{
1600	struct timespec ts;	1750	struct timespec ts;
1601		1751
…		…
1623	if (!(flags & EVFLAG_NOENV)	1773	if (!(flags & EVFLAG_NOENV)
1624	&& !enable_secure ()	1774	&& !enable_secure ()
1625	&& getenv ("LIBEV_FLAGS"))	1775	&& getenv ("LIBEV_FLAGS"))
1626	flags = atoi (getenv ("LIBEV_FLAGS"));	1776	flags = atoi (getenv ("LIBEV_FLAGS"));
1627		1777
1628	ev_rt_now = ev_time ();	1778	ev_rt_now = ev_time ();
1629	mn_now = get_clock ();	1779	mn_now = get_clock ();
1630	now_floor = mn_now;	1780	now_floor = mn_now;
1631	rtmn_diff = ev_rt_now - mn_now;	1781	rtmn_diff = ev_rt_now - mn_now;
1632	#if EV_MINIMAL < 2	1782	#if EV_FEATURE_API
1633	invoke_cb = ev_invoke_pending;	1783	invoke_cb = ev_invoke_pending;
1634	#endif	1784	#endif
1635		1785
1636	io_blocktime = 0.;	1786	io_blocktime = 0.;
1637	timeout_blocktime = 0.;	1787	timeout_blocktime = 0.;
1638	backend = 0;	1788	backend = 0;
1639	backend_fd = -1;	1789	backend_fd = -1;
1640	sig_pending = 0;	1790	sig_pending = 0;
1641	#if EV_ASYNC_ENABLE	1791	#if EV_ASYNC_ENABLE
1642	async_pending = 0;	1792	async_pending = 0;
1643	#endif	1793	#endif
		1794	pipe_write_skipped = 0;
		1795	pipe_write_wanted = 0;
1644	#if EV_USE_INOTIFY	1796	#if EV_USE_INOTIFY
1645	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1797	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1646	#endif	1798	#endif
1647	#if EV_USE_SIGNALFD	1799	#if EV_USE_SIGNALFD
1648	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	1800	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1649	#endif	1801	#endif
1650		1802
1651	if (!(flags & 0x0000ffffU))	1803	if (!(flags & EVBACKEND_MASK))
1652	flags |= ev_recommended_backends ();	1804	flags |= ev_recommended_backends ();
1653		1805
		1806	#if EV_USE_IOCP
		1807	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		1808	#endif
1654	#if EV_USE_PORT	1809	#if EV_USE_PORT
1655	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1810	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1656	#endif	1811	#endif
1657	#if EV_USE_KQUEUE	1812	#if EV_USE_KQUEUE
1658	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1813	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1675	#endif	1830	#endif
1676	}	1831	}
1677	}	1832	}
1678		1833
1679	/* free up a loop structure */	1834	/* free up a loop structure */
1680	static void noinline	1835	void
1681	loop_destroy (EV_P)	1836	ev_loop_destroy (EV_P)
1682	{	1837	{
1683	int i;	1838	int i;
		1839
		1840	#if EV_MULTIPLICITY
		1841	/* mimic free (0) */
		1842	if (!EV_A)
		1843	return;
		1844	#endif
		1845
		1846	#if EV_CLEANUP_ENABLE
		1847	/* queue cleanup watchers (and execute them) */
		1848	if (expect_false (cleanupcnt))
		1849	{
		1850	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
		1851	EV_INVOKE_PENDING;
		1852	}
		1853	#endif
		1854
		1855	#if EV_CHILD_ENABLE
		1856	if (ev_is_active (&childev))
		1857	{
		1858	ev_ref (EV_A); /* child watcher */
		1859	ev_signal_stop (EV_A_ &childev);
		1860	}
		1861	#endif
1684		1862
1685	if (ev_is_active (&pipe_w))	1863	if (ev_is_active (&pipe_w))
1686	{	1864	{
1687	/*ev_ref (EV_A);*/	1865	/*ev_ref (EV_A);*/
1688	/*ev_io_stop (EV_A_ &pipe_w);*/	1866	/*ev_io_stop (EV_A_ &pipe_w);*/
…		…
1710	#endif	1888	#endif
1711		1889
1712	if (backend_fd >= 0)	1890	if (backend_fd >= 0)
1713	close (backend_fd);	1891	close (backend_fd);
1714		1892
		1893	#if EV_USE_IOCP
		1894	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		1895	#endif
1715	#if EV_USE_PORT	1896	#if EV_USE_PORT
1716	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1897	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1717	#endif	1898	#endif
1718	#if EV_USE_KQUEUE	1899	#if EV_USE_KQUEUE
1719	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	1900	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1746	array_free (periodic, EMPTY);	1927	array_free (periodic, EMPTY);
1747	#endif	1928	#endif
1748	#if EV_FORK_ENABLE	1929	#if EV_FORK_ENABLE
1749	array_free (fork, EMPTY);	1930	array_free (fork, EMPTY);
1750	#endif	1931	#endif
		1932	#if EV_CLEANUP_ENABLE
		1933	array_free (cleanup, EMPTY);
		1934	#endif
1751	array_free (prepare, EMPTY);	1935	array_free (prepare, EMPTY);
1752	array_free (check, EMPTY);	1936	array_free (check, EMPTY);
1753	#if EV_ASYNC_ENABLE	1937	#if EV_ASYNC_ENABLE
1754	array_free (async, EMPTY);	1938	array_free (async, EMPTY);
1755	#endif	1939	#endif
1756		1940
1757	backend = 0;	1941	backend = 0;
		1942
		1943	#if EV_MULTIPLICITY
		1944	if (ev_is_default_loop (EV_A))
		1945	#endif
		1946	ev_default_loop_ptr = 0;
		1947	#if EV_MULTIPLICITY
		1948	else
		1949	ev_free (EV_A);
		1950	#endif
1758	}	1951	}
1759		1952
1760	#if EV_USE_INOTIFY	1953	#if EV_USE_INOTIFY
1761	inline_size void infy_fork (EV_P);	1954	inline_size void infy_fork (EV_P);
1762	#endif	1955	#endif
…		…
1777	infy_fork (EV_A);	1970	infy_fork (EV_A);
1778	#endif	1971	#endif
1779		1972
1780	if (ev_is_active (&pipe_w))	1973	if (ev_is_active (&pipe_w))
1781	{	1974	{
1782	/* this "locks" the handlers against writing to the pipe */	1975	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1783	/* while we modify the fd vars */
1784	sig_pending = 1;
1785	#if EV_ASYNC_ENABLE
1786	async_pending = 1;
1787	#endif
1788		1976
1789	ev_ref (EV_A);	1977	ev_ref (EV_A);
1790	ev_io_stop (EV_A_ &pipe_w);	1978	ev_io_stop (EV_A_ &pipe_w);
1791		1979
1792	#if EV_USE_EVENTFD	1980	#if EV_USE_EVENTFD
…		…
1798	{	1986	{
1799	EV_WIN32_CLOSE_FD (evpipe [0]);	1987	EV_WIN32_CLOSE_FD (evpipe [0]);
1800	EV_WIN32_CLOSE_FD (evpipe [1]);	1988	EV_WIN32_CLOSE_FD (evpipe [1]);
1801	}	1989	}
1802		1990
		1991	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1803	evpipe_init (EV_A);	1992	evpipe_init (EV_A);
1804	/* now iterate over everything, in case we missed something */	1993	/* now iterate over everything, in case we missed something */
1805	pipecb (EV_A_ &pipe_w, EV_READ);	1994	pipecb (EV_A_ &pipe_w, EV_READ);
		1995	#endif
1806	}	1996	}
1807		1997
1808	postfork = 0;	1998	postfork = 0;
1809	}	1999	}
1810		2000
…		…
1819	loop_init (EV_A_ flags);	2009	loop_init (EV_A_ flags);
1820		2010
1821	if (ev_backend (EV_A))	2011	if (ev_backend (EV_A))
1822	return EV_A;	2012	return EV_A;
1823		2013
		2014	ev_free (EV_A);
1824	return 0;	2015	return 0;
1825	}	2016	}
1826		2017
1827	void
1828	ev_loop_destroy (EV_P)
1829	{
1830	loop_destroy (EV_A);
1831	ev_free (loop);
1832	}
1833
1834	void
1835	ev_loop_fork (EV_P)
1836	{
1837	postfork = 1; /* must be in line with ev_default_fork */
1838	}
1839	#endif /* multiplicity */	2018	#endif /* multiplicity */
1840		2019
1841	#if EV_VERIFY	2020	#if EV_VERIFY
1842	static void noinline	2021	static void noinline
1843	verify_watcher (EV_P_ W w)	2022	verify_watcher (EV_P_ W w)
…		…
1872	verify_watcher (EV_A_ ws [cnt]);	2051	verify_watcher (EV_A_ ws [cnt]);
1873	}	2052	}
1874	}	2053	}
1875	#endif	2054	#endif
1876		2055
1877	#if EV_MINIMAL < 2	2056	#if EV_FEATURE_API
1878	void	2057	void
1879	ev_loop_verify (EV_P)	2058	ev_verify (EV_P)
1880	{	2059	{
1881	#if EV_VERIFY	2060	#if EV_VERIFY
1882	int i;	2061	int i;
1883	WL w;	2062	WL w;
1884		2063
…		…
1918	#if EV_FORK_ENABLE	2097	#if EV_FORK_ENABLE
1919	assert (forkmax >= forkcnt);	2098	assert (forkmax >= forkcnt);
1920	array_verify (EV_A_ (W *)forks, forkcnt);	2099	array_verify (EV_A_ (W *)forks, forkcnt);
1921	#endif	2100	#endif
1922		2101
		2102	#if EV_CLEANUP_ENABLE
		2103	assert (cleanupmax >= cleanupcnt);
		2104	array_verify (EV_A_ (W *)cleanups, cleanupcnt);
		2105	#endif
		2106
1923	#if EV_ASYNC_ENABLE	2107	#if EV_ASYNC_ENABLE
1924	assert (asyncmax >= asynccnt);	2108	assert (asyncmax >= asynccnt);
1925	array_verify (EV_A_ (W *)asyncs, asynccnt);	2109	array_verify (EV_A_ (W *)asyncs, asynccnt);
1926	#endif	2110	#endif
1927		2111
		2112	#if EV_PREPARE_ENABLE
1928	assert (preparemax >= preparecnt);	2113	assert (preparemax >= preparecnt);
1929	array_verify (EV_A_ (W *)prepares, preparecnt);	2114	array_verify (EV_A_ (W *)prepares, preparecnt);
		2115	#endif
1930		2116
		2117	#if EV_CHECK_ENABLE
1931	assert (checkmax >= checkcnt);	2118	assert (checkmax >= checkcnt);
1932	array_verify (EV_A_ (W *)checks, checkcnt);	2119	array_verify (EV_A_ (W *)checks, checkcnt);
		2120	#endif
1933		2121
1934	# if 0	2122	# if 0
1935	#if EV_CHILD_ENABLE	2123	#if EV_CHILD_ENABLE
1936	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	2124	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1937	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	2125	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1938	#endif	2126	#endif
1939	# endif	2127	# endif
1940	#endif	2128	#endif
1941	}	2129	}
1942	#endif	2130	#endif
1943		2131
1944	#if EV_MULTIPLICITY	2132	#if EV_MULTIPLICITY
1945	struct ev_loop *	2133	struct ev_loop *
1946	ev_default_loop_init (unsigned int flags)
1947	#else	2134	#else
1948	int	2135	int
		2136	#endif
1949	ev_default_loop (unsigned int flags)	2137	ev_default_loop (unsigned int flags)
1950	#endif
1951	{	2138	{
1952	if (!ev_default_loop_ptr)	2139	if (!ev_default_loop_ptr)
1953	{	2140	{
1954	#if EV_MULTIPLICITY	2141	#if EV_MULTIPLICITY
1955	EV_P = ev_default_loop_ptr = &default_loop_struct;	2142	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
1974		2161
1975	return ev_default_loop_ptr;	2162	return ev_default_loop_ptr;
1976	}	2163	}
1977		2164
1978	void	2165	void
1979	ev_default_destroy (void)	2166	ev_loop_fork (EV_P)
1980	{	2167	{
1981	#if EV_MULTIPLICITY
1982	EV_P = ev_default_loop_ptr;
1983	#endif
1984
1985	ev_default_loop_ptr = 0;
1986
1987	#if EV_CHILD_ENABLE
1988	ev_ref (EV_A); /* child watcher */
1989	ev_signal_stop (EV_A_ &childev);
1990	#endif
1991
1992	loop_destroy (EV_A);
1993	}
1994
1995	void
1996	ev_default_fork (void)
1997	{
1998	#if EV_MULTIPLICITY
1999	EV_P = ev_default_loop_ptr;
2000	#endif
2001
2002	postfork = 1; /* must be in line with ev_loop_fork */	2168	postfork = 1; /* must be in line with ev_default_fork */
2003	}	2169	}
2004		2170
2005	/*****************************************************************************/	2171	/*****************************************************************************/
2006		2172
2007	void	2173	void
…		…
2029		2195
2030	for (pri = NUMPRI; pri--; )	2196	for (pri = NUMPRI; pri--; )
2031	while (pendingcnt [pri])	2197	while (pendingcnt [pri])
2032	{	2198	{
2033	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2199	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2034
2035	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2036	/* ^ this is no longer true, as pending_w could be here */
2037		2200
2038	p->w->pending = 0;	2201	p->w->pending = 0;
2039	EV_CB_INVOKE (p->w, p->events);	2202	EV_CB_INVOKE (p->w, p->events);
2040	EV_FREQUENT_CHECK;	2203	EV_FREQUENT_CHECK;
2041	}	2204	}
…		…
2098	EV_FREQUENT_CHECK;	2261	EV_FREQUENT_CHECK;
2099	feed_reverse (EV_A_ (W)w);	2262	feed_reverse (EV_A_ (W)w);
2100	}	2263	}
2101	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2264	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2102		2265
2103	feed_reverse_done (EV_A_ EV_TIMEOUT);	2266	feed_reverse_done (EV_A_ EV_TIMER);
2104	}	2267	}
2105	}	2268	}
2106		2269
2107	#if EV_PERIODIC_ENABLE	2270	#if EV_PERIODIC_ENABLE
		2271
		2272	static void noinline
		2273	periodic_recalc (EV_P_ ev_periodic *w)
		2274	{
		2275	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
		2276	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
		2277
		2278	/* the above almost always errs on the low side */
		2279	while (at <= ev_rt_now)
		2280	{
		2281	ev_tstamp nat = at + w->interval;
		2282
		2283	/* when resolution fails us, we use ev_rt_now */
		2284	if (expect_false (nat == at))
		2285	{
		2286	at = ev_rt_now;
		2287	break;
		2288	}
		2289
		2290	at = nat;
		2291	}
		2292
		2293	ev_at (w) = at;
		2294	}
		2295
2108	/* make periodics pending */	2296	/* make periodics pending */
2109	inline_size void	2297	inline_size void
2110	periodics_reify (EV_P)	2298	periodics_reify (EV_P)
2111	{	2299	{
2112	EV_FREQUENT_CHECK;	2300	EV_FREQUENT_CHECK;
…		…
2131	ANHE_at_cache (periodics [HEAP0]);	2319	ANHE_at_cache (periodics [HEAP0]);
2132	downheap (periodics, periodiccnt, HEAP0);	2320	downheap (periodics, periodiccnt, HEAP0);
2133	}	2321	}
2134	else if (w->interval)	2322	else if (w->interval)
2135	{	2323	{
2136	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2324	periodic_recalc (EV_A_ w);
2137	/* if next trigger time is not sufficiently in the future, put it there */
2138	/* this might happen because of floating point inexactness */
2139	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2140	{
2141	ev_at (w) += w->interval;
2142
2143	/* if interval is unreasonably low we might still have a time in the past */
2144	/* so correct this. this will make the periodic very inexact, but the user */
2145	/* has effectively asked to get triggered more often than possible */
2146	if (ev_at (w) < ev_rt_now)
2147	ev_at (w) = ev_rt_now;
2148	}
2149
2150	ANHE_at_cache (periodics [HEAP0]);	2325	ANHE_at_cache (periodics [HEAP0]);
2151	downheap (periodics, periodiccnt, HEAP0);	2326	downheap (periodics, periodiccnt, HEAP0);
2152	}	2327	}
2153	else	2328	else
2154	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	2329	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
…		…
2161	feed_reverse_done (EV_A_ EV_PERIODIC);	2336	feed_reverse_done (EV_A_ EV_PERIODIC);
2162	}	2337	}
2163	}	2338	}
2164		2339
2165	/* simply recalculate all periodics */	2340	/* simply recalculate all periodics */
2166	/* TODO: maybe ensure that at leats one event happens when jumping forward? */	2341	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2167	static void noinline	2342	static void noinline
2168	periodics_reschedule (EV_P)	2343	periodics_reschedule (EV_P)
2169	{	2344	{
2170	int i;	2345	int i;
2171		2346
…		…
2175	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);	2350	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2176		2351
2177	if (w->reschedule_cb)	2352	if (w->reschedule_cb)
2178	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2353	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2179	else if (w->interval)	2354	else if (w->interval)
2180	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2355	periodic_recalc (EV_A_ w);
2181		2356
2182	ANHE_at_cache (periodics [i]);	2357	ANHE_at_cache (periodics [i]);
2183	}	2358	}
2184		2359
2185	reheap (periodics, periodiccnt);	2360	reheap (periodics, periodiccnt);
…		…
2232	* doesn't hurt either as we only do this on time-jumps or	2407	* doesn't hurt either as we only do this on time-jumps or
2233	* in the unlikely event of having been preempted here.	2408	* in the unlikely event of having been preempted here.
2234	*/	2409	*/
2235	for (i = 4; --i; )	2410	for (i = 4; --i; )
2236	{	2411	{
		2412	ev_tstamp diff;
2237	rtmn_diff = ev_rt_now - mn_now;	2413	rtmn_diff = ev_rt_now - mn_now;
2238		2414
		2415	diff = odiff - rtmn_diff;
		2416
2239	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))	2417	if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2240	return; /* all is well */	2418	return; /* all is well */
2241		2419
2242	ev_rt_now = ev_time ();	2420	ev_rt_now = ev_time ();
2243	mn_now = get_clock ();	2421	mn_now = get_clock ();
2244	now_floor = mn_now;	2422	now_floor = mn_now;
…		…
2267	mn_now = ev_rt_now;	2445	mn_now = ev_rt_now;
2268	}	2446	}
2269	}	2447	}
2270		2448
2271	void	2449	void
2272	ev_loop (EV_P_ int flags)	2450	ev_run (EV_P_ int flags)
2273	{	2451	{
2274	#if EV_MINIMAL < 2	2452	#if EV_FEATURE_API
2275	++loop_depth;	2453	++loop_depth;
2276	#endif	2454	#endif
2277		2455
2278	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2456	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2279		2457
2280	loop_done = EVUNLOOP_CANCEL;	2458	loop_done = EVBREAK_CANCEL;
2281		2459
2282	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2460	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2283		2461
2284	do	2462	do
2285	{	2463	{
2286	#if EV_VERIFY >= 2	2464	#if EV_VERIFY >= 2
2287	ev_loop_verify (EV_A);	2465	ev_verify (EV_A);
2288	#endif	2466	#endif
2289		2467
2290	#ifndef _WIN32	2468	#ifndef _WIN32
2291	if (expect_false (curpid)) /* penalise the forking check even more */	2469	if (expect_false (curpid)) /* penalise the forking check even more */
2292	if (expect_false (getpid () != curpid))	2470	if (expect_false (getpid () != curpid))
…		…
2304	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2482	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2305	EV_INVOKE_PENDING;	2483	EV_INVOKE_PENDING;
2306	}	2484	}
2307	#endif	2485	#endif
2308		2486
		2487	#if EV_PREPARE_ENABLE
2309	/* queue prepare watchers (and execute them) */	2488	/* queue prepare watchers (and execute them) */
2310	if (expect_false (preparecnt))	2489	if (expect_false (preparecnt))
2311	{	2490	{
2312	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2491	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2313	EV_INVOKE_PENDING;	2492	EV_INVOKE_PENDING;
2314	}	2493	}
		2494	#endif
2315		2495
2316	if (expect_false (loop_done))	2496	if (expect_false (loop_done))
2317	break;	2497	break;
2318		2498
2319	/* we might have forked, so reify kernel state if necessary */	2499	/* we might have forked, so reify kernel state if necessary */
…		…
2326	/* calculate blocking time */	2506	/* calculate blocking time */
2327	{	2507	{
2328	ev_tstamp waittime = 0.;	2508	ev_tstamp waittime = 0.;
2329	ev_tstamp sleeptime = 0.;	2509	ev_tstamp sleeptime = 0.;
2330		2510
		2511	/* remember old timestamp for io_blocktime calculation */
		2512	ev_tstamp prev_mn_now = mn_now;
		2513
		2514	/* update time to cancel out callback processing overhead */
		2515	time_update (EV_A_ 1e100);
		2516
		2517	/* from now on, we want a pipe-wake-up */
		2518	pipe_write_wanted = 1;
		2519
2331	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2520	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2332	{	2521	{
2333	/* remember old timestamp for io_blocktime calculation */
2334	ev_tstamp prev_mn_now = mn_now;
2335
2336	/* update time to cancel out callback processing overhead */
2337	time_update (EV_A_ 1e100);
2338
2339	waittime = MAX_BLOCKTIME;	2522	waittime = MAX_BLOCKTIME;
2340		2523
2341	if (timercnt)	2524	if (timercnt)
2342	{	2525	{
2343	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2526	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2344	if (waittime > to) waittime = to;	2527	if (waittime > to) waittime = to;
2345	}	2528	}
2346		2529
2347	#if EV_PERIODIC_ENABLE	2530	#if EV_PERIODIC_ENABLE
2348	if (periodiccnt)	2531	if (periodiccnt)
2349	{	2532	{
2350	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2533	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2351	if (waittime > to) waittime = to;	2534	if (waittime > to) waittime = to;
2352	}	2535	}
2353	#endif	2536	#endif
2354		2537
2355	/* don't let timeouts decrease the waittime below timeout_blocktime */	2538	/* don't let timeouts decrease the waittime below timeout_blocktime */
2356	if (expect_false (waittime < timeout_blocktime))	2539	if (expect_false (waittime < timeout_blocktime))
2357	waittime = timeout_blocktime;	2540	waittime = timeout_blocktime;
		2541
		2542	/* at this point, we NEED to wait, so we have to ensure */
		2543	/* to pass a minimum nonzero value to the backend */
		2544	if (expect_false (waittime < backend_mintime))
		2545	waittime = backend_mintime;
2358		2546
2359	/* extra check because io_blocktime is commonly 0 */	2547	/* extra check because io_blocktime is commonly 0 */
2360	if (expect_false (io_blocktime))	2548	if (expect_false (io_blocktime))
2361	{	2549	{
2362	sleeptime = io_blocktime - (mn_now - prev_mn_now);	2550	sleeptime = io_blocktime - (mn_now - prev_mn_now);
2363		2551
2364	if (sleeptime > waittime - backend_fudge)	2552	if (sleeptime > waittime - backend_mintime)
2365	sleeptime = waittime - backend_fudge;	2553	sleeptime = waittime - backend_mintime;
2366		2554
2367	if (expect_true (sleeptime > 0.))	2555	if (expect_true (sleeptime > 0.))
2368	{	2556	{
2369	ev_sleep (sleeptime);	2557	ev_sleep (sleeptime);
2370	waittime -= sleeptime;	2558	waittime -= sleeptime;
2371	}	2559	}
2372	}	2560	}
2373	}	2561	}
2374		2562
2375	#if EV_MINIMAL < 2	2563	#if EV_FEATURE_API
2376	++loop_count;	2564	++loop_count;
2377	#endif	2565	#endif
2378	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2566	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2379	backend_poll (EV_A_ waittime);	2567	backend_poll (EV_A_ waittime);
2380	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2568	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
		2569
		2570	pipe_write_wanted = 0;
		2571
		2572	if (pipe_write_skipped)
		2573	{
		2574	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
		2575	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
		2576	}
		2577
2381		2578
2382	/* update ev_rt_now, do magic */	2579	/* update ev_rt_now, do magic */
2383	time_update (EV_A_ waittime + sleeptime);	2580	time_update (EV_A_ waittime + sleeptime);
2384	}	2581	}
2385		2582
…		…
2392	#if EV_IDLE_ENABLE	2589	#if EV_IDLE_ENABLE
2393	/* queue idle watchers unless other events are pending */	2590	/* queue idle watchers unless other events are pending */
2394	idle_reify (EV_A);	2591	idle_reify (EV_A);
2395	#endif	2592	#endif
2396		2593
		2594	#if EV_CHECK_ENABLE
2397	/* queue check watchers, to be executed first */	2595	/* queue check watchers, to be executed first */
2398	if (expect_false (checkcnt))	2596	if (expect_false (checkcnt))
2399	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2597	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2598	#endif
2400		2599
2401	EV_INVOKE_PENDING;	2600	EV_INVOKE_PENDING;
2402	}	2601	}
2403	while (expect_true (	2602	while (expect_true (
2404	activecnt	2603	activecnt
2405	&& !loop_done	2604	&& !loop_done
2406	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2605	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2407	));	2606	));
2408		2607
2409	if (loop_done == EVUNLOOP_ONE)	2608	if (loop_done == EVBREAK_ONE)
2410	loop_done = EVUNLOOP_CANCEL;	2609	loop_done = EVBREAK_CANCEL;
2411		2610
2412	#if EV_MINIMAL < 2	2611	#if EV_FEATURE_API
2413	--loop_depth;	2612	--loop_depth;
2414	#endif	2613	#endif
2415	}	2614	}
2416		2615
2417	void	2616	void
2418	ev_unloop (EV_P_ int how)	2617	ev_break (EV_P_ int how)
2419	{	2618	{
2420	loop_done = how;	2619	loop_done = how;
2421	}	2620	}
2422		2621
2423	void	2622	void
…		…
2571	EV_FREQUENT_CHECK;	2770	EV_FREQUENT_CHECK;
2572		2771
2573	wlist_del (&anfds[w->fd].head, (WL)w);	2772	wlist_del (&anfds[w->fd].head, (WL)w);
2574	ev_stop (EV_A_ (W)w);	2773	ev_stop (EV_A_ (W)w);
2575		2774
2576	fd_change (EV_A_ w->fd, 1);	2775	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2577		2776
2578	EV_FREQUENT_CHECK;	2777	EV_FREQUENT_CHECK;
2579	}	2778	}
2580		2779
2581	void noinline	2780	void noinline
…		…
2673	if (w->reschedule_cb)	2872	if (w->reschedule_cb)
2674	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2873	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2675	else if (w->interval)	2874	else if (w->interval)
2676	{	2875	{
2677	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));	2876	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2678	/* this formula differs from the one in periodic_reify because we do not always round up */	2877	periodic_recalc (EV_A_ w);
2679	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2680	}	2878	}
2681	else	2879	else
2682	ev_at (w) = w->offset;	2880	ev_at (w) = w->offset;
2683		2881
2684	EV_FREQUENT_CHECK;	2882	EV_FREQUENT_CHECK;
…		…
2805	sa.sa_handler = ev_sighandler;	3003	sa.sa_handler = ev_sighandler;
2806	sigfillset (&sa.sa_mask);	3004	sigfillset (&sa.sa_mask);
2807	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	3005	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2808	sigaction (w->signum, &sa, 0);	3006	sigaction (w->signum, &sa, 0);
2809		3007
		3008	if (origflags & EVFLAG_NOSIGMASK)
		3009	{
2810	sigemptyset (&sa.sa_mask);	3010	sigemptyset (&sa.sa_mask);
2811	sigaddset (&sa.sa_mask, w->signum);	3011	sigaddset (&sa.sa_mask, w->signum);
2812	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);	3012	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		3013	}
2813	#endif	3014	#endif
2814	}	3015	}
2815		3016
2816	EV_FREQUENT_CHECK;	3017	EV_FREQUENT_CHECK;
2817	}	3018	}
…		…
2867	return;	3068	return;
2868		3069
2869	EV_FREQUENT_CHECK;	3070	EV_FREQUENT_CHECK;
2870		3071
2871	ev_start (EV_A_ (W)w, 1);	3072	ev_start (EV_A_ (W)w, 1);
2872	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	3073	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2873		3074
2874	EV_FREQUENT_CHECK;	3075	EV_FREQUENT_CHECK;
2875	}	3076	}
2876		3077
2877	void	3078	void
…		…
2881	if (expect_false (!ev_is_active (w)))	3082	if (expect_false (!ev_is_active (w)))
2882	return;	3083	return;
2883		3084
2884	EV_FREQUENT_CHECK;	3085	EV_FREQUENT_CHECK;
2885		3086
2886	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	3087	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2887	ev_stop (EV_A_ (W)w);	3088	ev_stop (EV_A_ (W)w);
2888		3089
2889	EV_FREQUENT_CHECK;	3090	EV_FREQUENT_CHECK;
2890	}	3091	}
2891		3092
…		…
2958	if (!pend || pend == path)	3159	if (!pend || pend == path)
2959	break;	3160	break;
2960		3161
2961	*pend = 0;	3162	*pend = 0;
2962	w->wd = inotify_add_watch (fs_fd, path, mask);	3163	w->wd = inotify_add_watch (fs_fd, path, mask);
2963	}	3164	}
2964	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	3165	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2965	}	3166	}
2966	}	3167	}
2967		3168
2968	if (w->wd >= 0)	3169	if (w->wd >= 0)
2969	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3170	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2970		3171
2971	/* now re-arm timer, if required */	3172	/* now re-arm timer, if required */
2972	if (ev_is_active (&w->timer)) ev_ref (EV_A);	3173	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2973	ev_timer_again (EV_A_ &w->timer);	3174	ev_timer_again (EV_A_ &w->timer);
2974	if (ev_is_active (&w->timer)) ev_unref (EV_A);	3175	if (ev_is_active (&w->timer)) ev_unref (EV_A);
…		…
2982		3183
2983	if (wd < 0)	3184	if (wd < 0)
2984	return;	3185	return;
2985		3186
2986	w->wd = -2;	3187	w->wd = -2;
2987	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3188	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2988	wlist_del (&fs_hash [slot].head, (WL)w);	3189	wlist_del (&fs_hash [slot].head, (WL)w);
2989		3190
2990	/* remove this watcher, if others are watching it, they will rearm */	3191	/* remove this watcher, if others are watching it, they will rearm */
2991	inotify_rm_watch (fs_fd, wd);	3192	inotify_rm_watch (fs_fd, wd);
2992	}	3193	}
…		…
2994	static void noinline	3195	static void noinline
2995	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3196	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2996	{	3197	{
2997	if (slot < 0)	3198	if (slot < 0)
2998	/* overflow, need to check for all hash slots */	3199	/* overflow, need to check for all hash slots */
2999	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3200	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3000	infy_wd (EV_A_ slot, wd, ev);	3201	infy_wd (EV_A_ slot, wd, ev);
3001	else	3202	else
3002	{	3203	{
3003	WL w_;	3204	WL w_;
3004		3205
3005	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3206	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
3006	{	3207	{
3007	ev_stat *w = (ev_stat *)w_;	3208	ev_stat *w = (ev_stat *)w_;
3008	w_ = w_->next; /* lets us remove this watcher and all before it */	3209	w_ = w_->next; /* lets us remove this watcher and all before it */
3009		3210
3010	if (w->wd == wd || wd == -1)	3211	if (w->wd == wd || wd == -1)
3011	{	3212	{
3012	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3213	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
3013	{	3214	{
3014	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3215	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
3015	w->wd = -1;	3216	w->wd = -1;
3016	infy_add (EV_A_ w); /* re-add, no matter what */	3217	infy_add (EV_A_ w); /* re-add, no matter what */
3017	}	3218	}
3018		3219
3019	stat_timer_cb (EV_A_ &w->timer, 0);	3220	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
3033	{	3234	{
3034	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);	3235	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
3035	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3236	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3036	ofs += sizeof (struct inotify_event) + ev->len;	3237	ofs += sizeof (struct inotify_event) + ev->len;
3037	}	3238	}
3038	}
3039
3040	inline_size unsigned int
3041	ev_linux_version (void)
3042	{
3043	struct utsname buf;
3044	unsigned int v;
3045	int i;
3046	char *p = buf.release;
3047
3048	if (uname (&buf))
3049	return 0;
3050
3051	for (i = 3+1; --i; )
3052	{
3053	unsigned int c = 0;
3054
3055	for (;;)
3056	{
3057	if (*p >= '0' && *p <= '9')
3058	c = c * 10 + *p++ - '0';
3059	else
3060	{
3061	p += *p == '.';
3062	break;
3063	}
3064	}
3065
3066	v = (v << 8) | c;
3067	}
3068
3069	return v;
3070	}	3239	}
3071		3240
3072	inline_size void	3241	inline_size void
3073	ev_check_2625 (EV_P)	3242	ev_check_2625 (EV_P)
3074	{	3243	{
…		…
3133	ev_io_set (&fs_w, fs_fd, EV_READ);	3302	ev_io_set (&fs_w, fs_fd, EV_READ);
3134	ev_io_start (EV_A_ &fs_w);	3303	ev_io_start (EV_A_ &fs_w);
3135	ev_unref (EV_A);	3304	ev_unref (EV_A);
3136	}	3305	}
3137		3306
3138	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3307	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3139	{	3308	{
3140	WL w_ = fs_hash [slot].head;	3309	WL w_ = fs_hash [slot].head;
3141	fs_hash [slot].head = 0;	3310	fs_hash [slot].head = 0;
3142		3311
3143	while (w_)	3312	while (w_)
…		…
3318		3487
3319	EV_FREQUENT_CHECK;	3488	EV_FREQUENT_CHECK;
3320	}	3489	}
3321	#endif	3490	#endif
3322		3491
		3492	#if EV_PREPARE_ENABLE
3323	void	3493	void
3324	ev_prepare_start (EV_P_ ev_prepare *w)	3494	ev_prepare_start (EV_P_ ev_prepare *w)
3325	{	3495	{
3326	if (expect_false (ev_is_active (w)))	3496	if (expect_false (ev_is_active (w)))
3327	return;	3497	return;
…		…
3353		3523
3354	ev_stop (EV_A_ (W)w);	3524	ev_stop (EV_A_ (W)w);
3355		3525
3356	EV_FREQUENT_CHECK;	3526	EV_FREQUENT_CHECK;
3357	}	3527	}
		3528	#endif
3358		3529
		3530	#if EV_CHECK_ENABLE
3359	void	3531	void
3360	ev_check_start (EV_P_ ev_check *w)	3532	ev_check_start (EV_P_ ev_check *w)
3361	{	3533	{
3362	if (expect_false (ev_is_active (w)))	3534	if (expect_false (ev_is_active (w)))
3363	return;	3535	return;
…		…
3389		3561
3390	ev_stop (EV_A_ (W)w);	3562	ev_stop (EV_A_ (W)w);
3391		3563
3392	EV_FREQUENT_CHECK;	3564	EV_FREQUENT_CHECK;
3393	}	3565	}
		3566	#endif
3394		3567
3395	#if EV_EMBED_ENABLE	3568	#if EV_EMBED_ENABLE
3396	void noinline	3569	void noinline
3397	ev_embed_sweep (EV_P_ ev_embed *w)	3570	ev_embed_sweep (EV_P_ ev_embed *w)
3398	{	3571	{
3399	ev_loop (w->other, EVLOOP_NONBLOCK);	3572	ev_run (w->other, EVRUN_NOWAIT);
3400	}	3573	}
3401		3574
3402	static void	3575	static void
3403	embed_io_cb (EV_P_ ev_io *io, int revents)	3576	embed_io_cb (EV_P_ ev_io *io, int revents)
3404	{	3577	{
3405	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	3578	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3406		3579
3407	if (ev_cb (w))	3580	if (ev_cb (w))
3408	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3581	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3409	else	3582	else
3410	ev_loop (w->other, EVLOOP_NONBLOCK);	3583	ev_run (w->other, EVRUN_NOWAIT);
3411	}	3584	}
3412		3585
3413	static void	3586	static void
3414	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3587	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3415	{	3588	{
…		…
3419	EV_P = w->other;	3592	EV_P = w->other;
3420		3593
3421	while (fdchangecnt)	3594	while (fdchangecnt)
3422	{	3595	{
3423	fd_reify (EV_A);	3596	fd_reify (EV_A);
3424	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3597	ev_run (EV_A_ EVRUN_NOWAIT);
3425	}	3598	}
3426	}	3599	}
3427	}	3600	}
3428		3601
3429	static void	3602	static void
…		…
3435		3608
3436	{	3609	{
3437	EV_P = w->other;	3610	EV_P = w->other;
3438		3611
3439	ev_loop_fork (EV_A);	3612	ev_loop_fork (EV_A);
3440	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3613	ev_run (EV_A_ EVRUN_NOWAIT);
3441	}	3614	}
3442		3615
3443	ev_embed_start (EV_A_ w);	3616	ev_embed_start (EV_A_ w);
3444	}	3617	}
3445		3618
…		…
3537		3710
3538	EV_FREQUENT_CHECK;	3711	EV_FREQUENT_CHECK;
3539	}	3712	}
3540	#endif	3713	#endif
3541		3714
3542	#if EV_ASYNC_ENABLE	3715	#if EV_CLEANUP_ENABLE
3543	void	3716	void
3544	ev_async_start (EV_P_ ev_async *w)	3717	ev_cleanup_start (EV_P_ ev_cleanup *w)
3545	{	3718	{
3546	if (expect_false (ev_is_active (w)))	3719	if (expect_false (ev_is_active (w)))
3547	return;	3720	return;
		3721
		3722	EV_FREQUENT_CHECK;
		3723
		3724	ev_start (EV_A_ (W)w, ++cleanupcnt);
		3725	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
		3726	cleanups [cleanupcnt - 1] = w;
		3727
		3728	/* cleanup watchers should never keep a refcount on the loop */
		3729	ev_unref (EV_A);
		3730	EV_FREQUENT_CHECK;
		3731	}
		3732
		3733	void
		3734	ev_cleanup_stop (EV_P_ ev_cleanup *w)
		3735	{
		3736	clear_pending (EV_A_ (W)w);
		3737	if (expect_false (!ev_is_active (w)))
		3738	return;
		3739
		3740	EV_FREQUENT_CHECK;
		3741	ev_ref (EV_A);
		3742
		3743	{
		3744	int active = ev_active (w);
		3745
		3746	cleanups [active - 1] = cleanups [--cleanupcnt];
		3747	ev_active (cleanups [active - 1]) = active;
		3748	}
		3749
		3750	ev_stop (EV_A_ (W)w);
		3751
		3752	EV_FREQUENT_CHECK;
		3753	}
		3754	#endif
		3755
		3756	#if EV_ASYNC_ENABLE
		3757	void
		3758	ev_async_start (EV_P_ ev_async *w)
		3759	{
		3760	if (expect_false (ev_is_active (w)))
		3761	return;
		3762
		3763	w->sent = 0;
3548		3764
3549	evpipe_init (EV_A);	3765	evpipe_init (EV_A);
3550		3766
3551	EV_FREQUENT_CHECK;	3767	EV_FREQUENT_CHECK;
3552		3768
…		…
3630	{	3846	{
3631	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3847	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3632		3848
3633	if (expect_false (!once))	3849	if (expect_false (!once))
3634	{	3850	{
3635	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3851	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3636	return;	3852	return;
3637	}	3853	}
3638		3854
3639	once->cb = cb;	3855	once->cb = cb;
3640	once->arg = arg;	3856	once->arg = arg;
…		…
3727	if (types & EV_ASYNC)	3943	if (types & EV_ASYNC)
3728	for (i = asynccnt; i--; )	3944	for (i = asynccnt; i--; )
3729	cb (EV_A_ EV_ASYNC, asyncs [i]);	3945	cb (EV_A_ EV_ASYNC, asyncs [i]);
3730	#endif	3946	#endif
3731		3947
		3948	#if EV_PREPARE_ENABLE
3732	if (types & EV_PREPARE)	3949	if (types & EV_PREPARE)
3733	for (i = preparecnt; i--; )	3950	for (i = preparecnt; i--; )
3734	#if EV_EMBED_ENABLE	3951	# if EV_EMBED_ENABLE
3735	if (ev_cb (prepares [i]) != embed_prepare_cb)	3952	if (ev_cb (prepares [i]) != embed_prepare_cb)
3736	#endif	3953	# endif
3737	cb (EV_A_ EV_PREPARE, prepares [i]);	3954	cb (EV_A_ EV_PREPARE, prepares [i]);
		3955	#endif
3738		3956
		3957	#if EV_CHECK_ENABLE
3739	if (types & EV_CHECK)	3958	if (types & EV_CHECK)
3740	for (i = checkcnt; i--; )	3959	for (i = checkcnt; i--; )
3741	cb (EV_A_ EV_CHECK, checks [i]);	3960	cb (EV_A_ EV_CHECK, checks [i]);
		3961	#endif
3742		3962
		3963	#if EV_SIGNAL_ENABLE
3743	if (types & EV_SIGNAL)	3964	if (types & EV_SIGNAL)
3744	for (i = 0; i < EV_NSIG - 1; ++i)	3965	for (i = 0; i < EV_NSIG - 1; ++i)
3745	for (wl = signals [i].head; wl; )	3966	for (wl = signals [i].head; wl; )
3746	{	3967	{
3747	wn = wl->next;	3968	wn = wl->next;
3748	cb (EV_A_ EV_SIGNAL, wl);	3969	cb (EV_A_ EV_SIGNAL, wl);
3749	wl = wn;	3970	wl = wn;
3750	}	3971	}
		3972	#endif
3751		3973
		3974	#if EV_CHILD_ENABLE
3752	if (types & EV_CHILD)	3975	if (types & EV_CHILD)
3753	for (i = EV_PID_HASHSIZE; i--; )	3976	for (i = (EV_PID_HASHSIZE); i--; )
3754	for (wl = childs [i]; wl; )	3977	for (wl = childs [i]; wl; )
3755	{	3978	{
3756	wn = wl->next;	3979	wn = wl->next;
3757	cb (EV_A_ EV_CHILD, wl);	3980	cb (EV_A_ EV_CHILD, wl);
3758	wl = wn;	3981	wl = wn;
3759	}	3982	}
		3983	#endif
3760	/* EV_STAT 0x00001000 /* stat data changed */	3984	/* EV_STAT 0x00001000 /* stat data changed */
3761	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3985	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3762	}	3986	}
3763	#endif	3987	#endif
3764		3988
3765	#if EV_MULTIPLICITY	3989	#if EV_MULTIPLICITY
3766	#include "ev_wrap.h"	3990	#include "ev_wrap.h"
3767	#endif	3991	#endif
3768		3992
3769	#ifdef __cplusplus	3993	EV_CPP(})
3770	}
3771	#endif
3772		3994

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