ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.335 by root, Tue Mar 9 09:02:03 2010 UTC vs.
Revision 1.374 by root, Sat Feb 26 15:21:01 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)
…		…
207	#elif defined (MAXSIG)	227	#elif defined (MAXSIG)
208	# define EV_NSIG (MAXSIG+1)	228	# define EV_NSIG (MAXSIG+1)
209	#elif defined (MAX_SIG)	229	#elif defined (MAX_SIG)
210	# define EV_NSIG (MAX_SIG+1)	230	# define EV_NSIG (MAX_SIG+1)
211	#elif defined (SIGARRAYSIZE)	231	#elif defined (SIGARRAYSIZE)
212	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */	232	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213	#elif defined (_sys_nsig)	233	#elif defined (_sys_nsig)
214	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	234	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215	#else	235	#else
216	# error "unable to find value for NSIG, please report"	236	# error "unable to find value for NSIG, please report"
217	/* to make it compile regardless, just remove the above line */	237	/* to make it compile regardless, just remove the above line, */
		238	/* but consider reporting it, too! :) */
218	# define EV_NSIG 65	239	# define EV_NSIG 65
		240	#endif
		241
		242	#ifndef EV_USE_FLOOR
		243	# define EV_USE_FLOOR 0
219	#endif	244	#endif
220		245
221	#ifndef EV_USE_CLOCK_SYSCALL	246	#ifndef EV_USE_CLOCK_SYSCALL
222	# if __linux && __GLIBC__ >= 2	247	# if __linux && __GLIBC__ >= 2
223	# define EV_USE_CLOCK_SYSCALL 1	248	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
224	# else	249	# else
225	# define EV_USE_CLOCK_SYSCALL 0	250	# define EV_USE_CLOCK_SYSCALL 0
226	# endif	251	# endif
227	#endif	252	#endif
228		253
229	#ifndef EV_USE_MONOTONIC	254	#ifndef EV_USE_MONOTONIC
230	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	255	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
231	# define EV_USE_MONOTONIC 1	256	# define EV_USE_MONOTONIC EV_FEATURE_OS
232	# else	257	# else
233	# define EV_USE_MONOTONIC 0	258	# define EV_USE_MONOTONIC 0
234	# endif	259	# endif
235	#endif	260	#endif
236		261
…		…
238	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	263	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239	#endif	264	#endif
240		265
241	#ifndef EV_USE_NANOSLEEP	266	#ifndef EV_USE_NANOSLEEP
242	# if _POSIX_C_SOURCE >= 199309L	267	# if _POSIX_C_SOURCE >= 199309L
243	# define EV_USE_NANOSLEEP 1	268	# define EV_USE_NANOSLEEP EV_FEATURE_OS
244	# else	269	# else
245	# define EV_USE_NANOSLEEP 0	270	# define EV_USE_NANOSLEEP 0
246	# endif	271	# endif
247	#endif	272	#endif
248		273
249	#ifndef EV_USE_SELECT	274	#ifndef EV_USE_SELECT
250	# define EV_USE_SELECT 1	275	# define EV_USE_SELECT EV_FEATURE_BACKENDS
251	#endif	276	#endif
252		277
253	#ifndef EV_USE_POLL	278	#ifndef EV_USE_POLL
254	# ifdef _WIN32	279	# ifdef _WIN32
255	# define EV_USE_POLL 0	280	# define EV_USE_POLL 0
256	# else	281	# else
257	# define EV_USE_POLL 1	282	# define EV_USE_POLL EV_FEATURE_BACKENDS
258	# endif	283	# endif
259	#endif	284	#endif
260		285
261	#ifndef EV_USE_EPOLL	286	#ifndef EV_USE_EPOLL
262	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	287	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263	# define EV_USE_EPOLL 1	288	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264	# else	289	# else
265	# define EV_USE_EPOLL 0	290	# define EV_USE_EPOLL 0
266	# endif	291	# endif
267	#endif	292	#endif
268		293
…		…
274	# define EV_USE_PORT 0	299	# define EV_USE_PORT 0
275	#endif	300	#endif
276		301
277	#ifndef EV_USE_INOTIFY	302	#ifndef EV_USE_INOTIFY
278	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	303	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279	# define EV_USE_INOTIFY 1	304	# define EV_USE_INOTIFY EV_FEATURE_OS
280	# else	305	# else
281	# define EV_USE_INOTIFY 0	306	# define EV_USE_INOTIFY 0
282	# endif	307	# endif
283	#endif	308	#endif
284		309
285	#ifndef EV_PID_HASHSIZE	310	#ifndef EV_PID_HASHSIZE
286	# if EV_MINIMAL	311	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
287	# define EV_PID_HASHSIZE 1
288	# else
289	# define EV_PID_HASHSIZE 16
290	# endif
291	#endif	312	#endif
292		313
293	#ifndef EV_INOTIFY_HASHSIZE	314	#ifndef EV_INOTIFY_HASHSIZE
294	# if EV_MINIMAL	315	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
295	# define EV_INOTIFY_HASHSIZE 1
296	# else
297	# define EV_INOTIFY_HASHSIZE 16
298	# endif
299	#endif	316	#endif
300		317
301	#ifndef EV_USE_EVENTFD	318	#ifndef EV_USE_EVENTFD
302	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	319	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303	# define EV_USE_EVENTFD 1	320	# define EV_USE_EVENTFD EV_FEATURE_OS
304	# else	321	# else
305	# define EV_USE_EVENTFD 0	322	# define EV_USE_EVENTFD 0
306	# endif	323	# endif
307	#endif	324	#endif
308		325
309	#ifndef EV_USE_SIGNALFD	326	#ifndef EV_USE_SIGNALFD
310	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	327	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311	# define EV_USE_SIGNALFD 1	328	# define EV_USE_SIGNALFD EV_FEATURE_OS
312	# else	329	# else
313	# define EV_USE_SIGNALFD 0	330	# define EV_USE_SIGNALFD 0
314	# endif	331	# endif
315	#endif	332	#endif
316		333
…		…
319	# define EV_USE_4HEAP 1	336	# define EV_USE_4HEAP 1
320	# define EV_HEAP_CACHE_AT 1	337	# define EV_HEAP_CACHE_AT 1
321	#endif	338	#endif
322		339
323	#ifndef EV_VERIFY	340	#ifndef EV_VERIFY
324	# define EV_VERIFY !EV_MINIMAL	341	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325	#endif	342	#endif
326		343
327	#ifndef EV_USE_4HEAP	344	#ifndef EV_USE_4HEAP
328	# define EV_USE_4HEAP !EV_MINIMAL	345	# define EV_USE_4HEAP EV_FEATURE_DATA
329	#endif	346	#endif
330		347
331	#ifndef EV_HEAP_CACHE_AT	348	#ifndef EV_HEAP_CACHE_AT
332	# define EV_HEAP_CACHE_AT !EV_MINIMAL	349	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
333	#endif	350	#endif
334		351
335	/* 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, */
336	/* which makes programs even slower. might work on other unices, too. */	353	/* which makes programs even slower. might work on other unices, too. */
337	#if EV_USE_CLOCK_SYSCALL	354	#if EV_USE_CLOCK_SYSCALL
…		…
368	# undef EV_USE_INOTIFY	385	# undef EV_USE_INOTIFY
369	# define EV_USE_INOTIFY 0	386	# define EV_USE_INOTIFY 0
370	#endif	387	#endif
371		388
372	#if !EV_USE_NANOSLEEP	389	#if !EV_USE_NANOSLEEP
373	# ifndef _WIN32	390	/* hp-ux has it in sys/time.h, which we unconditionally include above */
		391	# if !defined(_WIN32) && !defined(__hpux)
374	# include <sys/select.h>	392	# include <sys/select.h>
375	# endif	393	# endif
376	#endif	394	#endif
377		395
378	#if EV_USE_INOTIFY	396	#if EV_USE_INOTIFY
379	# include <sys/utsname.h>
380	# include <sys/statfs.h>	397	# include <sys/statfs.h>
381	# include <sys/inotify.h>	398	# include <sys/inotify.h>
382	/* 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 */
383	# ifndef IN_DONT_FOLLOW	400	# ifndef IN_DONT_FOLLOW
384	# undef EV_USE_INOTIFY	401	# undef EV_USE_INOTIFY
…		…
401	# define EFD_CLOEXEC O_CLOEXEC	418	# define EFD_CLOEXEC O_CLOEXEC
402	# else	419	# else
403	# define EFD_CLOEXEC 02000000	420	# define EFD_CLOEXEC 02000000
404	# endif	421	# endif
405	# endif	422	# endif
406	# ifdef __cplusplus
407	extern "C" {
408	# endif
409	int (eventfd) (unsigned int initval, int flags);	423	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410	# ifdef __cplusplus
411	}
412	# endif
413	#endif	424	#endif
414		425
415	#if EV_USE_SIGNALFD	426	#if EV_USE_SIGNALFD
416	/* 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 */
417	# include <stdint.h>	428	# include <stdint.h>
…		…
423	# define SFD_CLOEXEC O_CLOEXEC	434	# define SFD_CLOEXEC O_CLOEXEC
424	# else	435	# else
425	# define SFD_CLOEXEC 02000000	436	# define SFD_CLOEXEC 02000000
426	# endif	437	# endif
427	# endif	438	# endif
428	# ifdef __cplusplus
429	extern "C" {
430	# endif
431	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);
432		440
433	struct signalfd_siginfo	441	struct signalfd_siginfo
434	{	442	{
435	uint32_t ssi_signo;	443	uint32_t ssi_signo;
436	char pad[128 - sizeof (uint32_t)];	444	char pad[128 - sizeof (uint32_t)];
437	};	445	};
438	# ifdef __cplusplus
439	}
440	# endif	446	#endif
441	#endif
442
443		447
444	/**/	448	/**/
445		449
446	#if EV_VERIFY >= 3	450	#if EV_VERIFY >= 3
447	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	451	# define EV_FREQUENT_CHECK ev_verify (EV_A)
448	#else	452	#else
449	# define EV_FREQUENT_CHECK do { } while (0)	453	# define EV_FREQUENT_CHECK do { } while (0)
450	#endif	454	#endif
451		455
452	/*	456	/*
453	* This is used to avoid floating point rounding problems.	457	* This is used to work around floating point rounding problems.
454	* It is added to ev_rt_now when scheduling periodics
455	* to ensure progress, time-wise, even when rounding
456	* errors are against us.
457	* This value is good at least till the year 4000.	458	* This value is good at least till the year 4000.
458	* Better solutions welcome.
459	*/	459	*/
460	#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 */
461		462
462	#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) */
463	#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)
464		468
465	#if __GNUC__ >= 4	469	#if __GNUC__ >= 4
466	# define expect(expr,value) __builtin_expect ((expr),(value))	470	# define expect(expr,value) __builtin_expect ((expr),(value))
467	# define noinline __attribute__ ((noinline))	471	# define noinline __attribute__ ((noinline))
468	#else	472	#else
…		…
475		479
476	#define expect_false(expr) expect ((expr) != 0, 0)	480	#define expect_false(expr) expect ((expr) != 0, 0)
477	#define expect_true(expr) expect ((expr) != 0, 1)	481	#define expect_true(expr) expect ((expr) != 0, 1)
478	#define inline_size static inline	482	#define inline_size static inline
479		483
480	#if EV_MINIMAL	484	#if EV_FEATURE_CODE
		485	# define inline_speed static inline
		486	#else
481	# define inline_speed static noinline	487	# define inline_speed static noinline
482	#else
483	# define inline_speed static inline
484	#endif	488	#endif
485		489
486	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	490	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487		491
488	#if EV_MINPRI == EV_MAXPRI	492	#if EV_MINPRI == EV_MAXPRI
…		…
501	#define ev_active(w) ((W)(w))->active	505	#define ev_active(w) ((W)(w))->active
502	#define ev_at(w) ((WT)(w))->at	506	#define ev_at(w) ((WT)(w))->at
503		507
504	#if EV_USE_REALTIME	508	#if EV_USE_REALTIME
505	/* 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 */
506	/* giving it a reasonably high chance of working on typical architetcures */	510	/* giving it a reasonably high chance of working on typical architectures */
507	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? */
508	#endif	512	#endif
509		513
510	#if EV_USE_MONOTONIC	514	#if EV_USE_MONOTONIC
511	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? */
…		…
522	#endif	526	#endif
523		527
524	#ifdef _WIN32	528	#ifdef _WIN32
525	# include "ev_win32.c"	529	# include "ev_win32.c"
526	#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	}
527		621
528	/*****************************************************************************/	622	/*****************************************************************************/
529		623
530	#if EV_AVOID_STDIO	624	#if EV_AVOID_STDIO
531	static void noinline	625	static void noinline
…		…
552	if (syserr_cb)	646	if (syserr_cb)
553	syserr_cb (msg);	647	syserr_cb (msg);
554	else	648	else
555	{	649	{
556	#if EV_AVOID_STDIO	650	#if EV_AVOID_STDIO
557	const char *err = strerror (errno);
558
559	ev_printerr (msg);	651	ev_printerr (msg);
560	ev_printerr (": ");	652	ev_printerr (": ");
561	ev_printerr (err);	653	ev_printerr (strerror (errno));
562	ev_printerr ("\n");	654	ev_printerr ("\n");
563	#else	655	#else
564	perror (msg);	656	perror (msg);
565	#endif	657	#endif
566	abort ();	658	abort ();
…		…
600	ptr = alloc (ptr, size);	692	ptr = alloc (ptr, size);
601		693
602	if (!ptr && size)	694	if (!ptr && size)
603	{	695	{
604	#if EV_AVOID_STDIO	696	#if EV_AVOID_STDIO
605	ev_printerr ("libev: memory allocation failed, aborting.\n");	697	ev_printerr ("(libev) memory allocation failed, aborting.\n");
606	#else	698	#else
607	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	699	fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
608	#endif	700	#endif
609	abort ();	701	abort ();
610	}	702	}
611		703
612	return ptr;	704	return ptr;
…		…
629	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 */
630	unsigned char unused;	722	unsigned char unused;
631	#if EV_USE_EPOLL	723	#if EV_USE_EPOLL
632	unsigned int egen; /* generation counter to counter epoll bugs */	724	unsigned int egen; /* generation counter to counter epoll bugs */
633	#endif	725	#endif
634	#if EV_SELECT_IS_WINSOCKET	726	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
635	SOCKET handle;	727	SOCKET handle;
		728	#endif
		729	#if EV_USE_IOCP
		730	OVERLAPPED or, ow;
636	#endif	731	#endif
637	} ANFD;	732	} ANFD;
638		733
639	/* stores the pending event set for a given watcher */	734	/* stores the pending event set for a given watcher */
640	typedef struct	735	typedef struct
…		…
695		790
696	static int ev_default_loop_ptr;	791	static int ev_default_loop_ptr;
697		792
698	#endif	793	#endif
699		794
700	#if EV_MINIMAL < 2	795	#if EV_FEATURE_API
701	# 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)
702	# 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)
703	# define EV_INVOKE_PENDING invoke_cb (EV_A)	798	# define EV_INVOKE_PENDING invoke_cb (EV_A)
704	#else	799	#else
705	# define EV_RELEASE_CB (void)0	800	# define EV_RELEASE_CB (void)0
706	# define EV_ACQUIRE_CB (void)0	801	# define EV_ACQUIRE_CB (void)0
707	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	802	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
708	#endif	803	#endif
709		804
710	#define EVUNLOOP_RECURSE 0x80	805	#define EVBREAK_RECURSE 0x80
711		806
712	/*****************************************************************************/	807	/*****************************************************************************/
713		808
714	#ifndef EV_HAVE_EV_TIME	809	#ifndef EV_HAVE_EV_TIME
715	ev_tstamp	810	ev_tstamp
…		…
759	if (delay > 0.)	854	if (delay > 0.)
760	{	855	{
761	#if EV_USE_NANOSLEEP	856	#if EV_USE_NANOSLEEP
762	struct timespec ts;	857	struct timespec ts;
763		858
764	ts.tv_sec = (time_t)delay;	859	EV_TS_SET (ts, delay);
765	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
766
767	nanosleep (&ts, 0);	860	nanosleep (&ts, 0);
768	#elif defined(_WIN32)	861	#elif defined(_WIN32)
769	Sleep ((unsigned long)(delay * 1e3));	862	Sleep ((unsigned long)(delay * 1e3));
770	#else	863	#else
771	struct timeval tv;	864	struct timeval tv;
772		865
773	tv.tv_sec = (time_t)delay;
774	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
775
776	/* 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 */
777	/* something not guaranteed by newer posix versions, but guaranteed */	867	/* something not guaranteed by newer posix versions, but guaranteed */
778	/* by older ones */	868	/* by older ones */
		869	EV_TV_SET (tv, delay);
779	select (0, 0, 0, 0, &tv);	870	select (0, 0, 0, 0, &tv);
780	#endif	871	#endif
781	}	872	}
782	}	873	}
783		874
		875	inline_speed int
		876	ev_timeout_to_ms (ev_tstamp timeout)
		877	{
		878	int ms = timeout * 1000. + .999999;
		879
		880	return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
		881	}
		882
784	/*****************************************************************************/	883	/*****************************************************************************/
785		884
786	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	885	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
787		886
788	/* find a suitable new size for the given array, */	887	/* find a suitable new size for the given array, */
789	/* hopefully by rounding to a ncie-to-malloc size */	888	/* hopefully by rounding to a nice-to-malloc size */
790	inline_size int	889	inline_size int
791	array_nextsize (int elem, int cur, int cnt)	890	array_nextsize (int elem, int cur, int cnt)
792	{	891	{
793	int ncur = cur + 1;	892	int ncur = cur + 1;
794		893
…		…
890	}	989	}
891		990
892	/*****************************************************************************/	991	/*****************************************************************************/
893		992
894	inline_speed void	993	inline_speed void
895	fd_event_nc (EV_P_ int fd, int revents)	994	fd_event_nocheck (EV_P_ int fd, int revents)
896	{	995	{
897	ANFD *anfd = anfds + fd;	996	ANFD *anfd = anfds + fd;
898	ev_io *w;	997	ev_io *w;
899		998
900	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	999	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
912	fd_event (EV_P_ int fd, int revents)	1011	fd_event (EV_P_ int fd, int revents)
913	{	1012	{
914	ANFD *anfd = anfds + fd;	1013	ANFD *anfd = anfds + fd;
915		1014
916	if (expect_true (!anfd->reify))	1015	if (expect_true (!anfd->reify))
917	fd_event_nc (EV_A_ fd, revents);	1016	fd_event_nocheck (EV_A_ fd, revents);
918	}	1017	}
919		1018
920	void	1019	void
921	ev_feed_fd_event (EV_P_ int fd, int revents)	1020	ev_feed_fd_event (EV_P_ int fd, int revents)
922	{	1021	{
923	if (fd >= 0 && fd < anfdmax)	1022	if (fd >= 0 && fd < anfdmax)
924	fd_event_nc (EV_A_ fd, revents);	1023	fd_event_nocheck (EV_A_ fd, revents);
925	}	1024	}
926		1025
927	/* make sure the external fd watch events are in-sync */	1026	/* make sure the external fd watch events are in-sync */
928	/* with the kernel/libev internal state */	1027	/* with the kernel/libev internal state */
929	inline_size void	1028	inline_size void
930	fd_reify (EV_P)	1029	fd_reify (EV_P)
931	{	1030	{
932	int i;	1031	int i;
933		1032
		1033	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
		1034	for (i = 0; i < fdchangecnt; ++i)
		1035	{
		1036	int fd = fdchanges [i];
		1037	ANFD *anfd = anfds + fd;
		1038
		1039	if (anfd->reify & EV__IOFDSET && anfd->head)
		1040	{
		1041	SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
		1042
		1043	if (handle != anfd->handle)
		1044	{
		1045	unsigned long arg;
		1046
		1047	assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
		1048
		1049	/* handle changed, but fd didn't - we need to do it in two steps */
		1050	backend_modify (EV_A_ fd, anfd->events, 0);
		1051	anfd->events = 0;
		1052	anfd->handle = handle;
		1053	}
		1054	}
		1055	}
		1056	#endif
		1057
934	for (i = 0; i < fdchangecnt; ++i)	1058	for (i = 0; i < fdchangecnt; ++i)
935	{	1059	{
936	int fd = fdchanges [i];	1060	int fd = fdchanges [i];
937	ANFD *anfd = anfds + fd;	1061	ANFD *anfd = anfds + fd;
938	ev_io *w;	1062	ev_io *w;
939		1063
940	unsigned char events = 0;	1064	unsigned char o_events = anfd->events;
		1065	unsigned char o_reify = anfd->reify;
941		1066
942	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	1067	anfd->reify = 0;
943	events |= (unsigned char)w->events;
944		1068
945	#if EV_SELECT_IS_WINSOCKET	1069	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
946	if (events)
947	{	1070	{
948	unsigned long arg;	1071	anfd->events = 0;
949	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	1072
950	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	1073	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
		1074	anfd->events |= (unsigned char)w->events;
		1075
		1076	if (o_events != anfd->events)
		1077	o_reify = EV__IOFDSET; /* actually |= */
951	}	1078	}
952	#endif
953		1079
954	{	1080	if (o_reify & EV__IOFDSET)
955	unsigned char o_events = anfd->events;
956	unsigned char o_reify = anfd->reify;
957
958	anfd->reify = 0;
959	anfd->events = events;
960
961	if (o_events != events || o_reify & EV__IOFDSET)
962	backend_modify (EV_A_ fd, o_events, events);	1081	backend_modify (EV_A_ fd, o_events, anfd->events);
963	}
964	}	1082	}
965		1083
966	fdchangecnt = 0;	1084	fdchangecnt = 0;
967	}	1085	}
968		1086
…		…
992	ev_io_stop (EV_A_ w);	1110	ev_io_stop (EV_A_ w);
993	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1111	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
994	}	1112	}
995	}	1113	}
996		1114
997	/* check whether the given fd is atcually valid, for error recovery */	1115	/* check whether the given fd is actually valid, for error recovery */
998	inline_size int	1116	inline_size int
999	fd_valid (int fd)	1117	fd_valid (int fd)
1000	{	1118	{
1001	#ifdef _WIN32	1119	#ifdef _WIN32
1002	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1120	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
…		…
1044	anfds [fd].emask = 0;	1162	anfds [fd].emask = 0;
1045	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);	1163	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1046	}	1164	}
1047	}	1165	}
1048		1166
		1167	/* used to prepare libev internal fd's */
		1168	/* this is not fork-safe */
		1169	inline_speed void
		1170	fd_intern (int fd)
		1171	{
		1172	#ifdef _WIN32
		1173	unsigned long arg = 1;
		1174	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1175	#else
		1176	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1177	fcntl (fd, F_SETFL, O_NONBLOCK);
		1178	#endif
		1179	}
		1180
1049	/*****************************************************************************/	1181	/*****************************************************************************/
1050		1182
1051	/*	1183	/*
1052	* the heap functions want a real array index. array index 0 uis guaranteed to not	1184	* the heap functions want a real array index. array index 0 is guaranteed to not
1053	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives	1185	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1054	* the branching factor of the d-tree.	1186	* the branching factor of the d-tree.
1055	*/	1187	*/
1056		1188
1057	/*	1189	/*
…		…
1205		1337
1206	static ANSIG signals [EV_NSIG - 1];	1338	static ANSIG signals [EV_NSIG - 1];
1207		1339
1208	/*****************************************************************************/	1340	/*****************************************************************************/
1209		1341
1210	/* used to prepare libev internal fd's */	1342	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1211	/* this is not fork-safe */
1212	inline_speed void
1213	fd_intern (int fd)
1214	{
1215	#ifdef _WIN32
1216	unsigned long arg = 1;
1217	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1218	#else
1219	fcntl (fd, F_SETFD, FD_CLOEXEC);
1220	fcntl (fd, F_SETFL, O_NONBLOCK);
1221	#endif
1222	}
1223		1343
1224	static void noinline	1344	static void noinline
1225	evpipe_init (EV_P)	1345	evpipe_init (EV_P)
1226	{	1346	{
1227	if (!ev_is_active (&pipe_w))	1347	if (!ev_is_active (&pipe_w))
1228	{	1348	{
1229	#if EV_USE_EVENTFD	1349	# if EV_USE_EVENTFD
1230	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1350	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1231	if (evfd < 0 && errno == EINVAL)	1351	if (evfd < 0 && errno == EINVAL)
1232	evfd = eventfd (0, 0);	1352	evfd = eventfd (0, 0);
1233		1353
1234	if (evfd >= 0)	1354	if (evfd >= 0)
…		…
1236	evpipe [0] = -1;	1356	evpipe [0] = -1;
1237	fd_intern (evfd); /* doing it twice doesn't hurt */	1357	fd_intern (evfd); /* doing it twice doesn't hurt */
1238	ev_io_set (&pipe_w, evfd, EV_READ);	1358	ev_io_set (&pipe_w, evfd, EV_READ);
1239	}	1359	}
1240	else	1360	else
1241	#endif	1361	# endif
1242	{	1362	{
1243	while (pipe (evpipe))	1363	while (pipe (evpipe))
1244	ev_syserr ("(libev) error creating signal/async pipe");	1364	ev_syserr ("(libev) error creating signal/async pipe");
1245		1365
1246	fd_intern (evpipe [0]);	1366	fd_intern (evpipe [0]);
…		…
1257	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1377	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1258	{	1378	{
1259	if (!*flag)	1379	if (!*flag)
1260	{	1380	{
1261	int old_errno = errno; /* save errno because write might clobber it */	1381	int old_errno = errno; /* save errno because write might clobber it */
		1382	char dummy;
1262		1383
1263	*flag = 1;	1384	*flag = 1;
1264		1385
1265	#if EV_USE_EVENTFD	1386	#if EV_USE_EVENTFD
1266	if (evfd >= 0)	1387	if (evfd >= 0)
…		…
1268	uint64_t counter = 1;	1389	uint64_t counter = 1;
1269	write (evfd, &counter, sizeof (uint64_t));	1390	write (evfd, &counter, sizeof (uint64_t));
1270	}	1391	}
1271	else	1392	else
1272	#endif	1393	#endif
		1394	/* win32 people keep sending patches that change this write() to send() */
		1395	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1396	/* so when you think this write should be a send instead, please find out */
		1397	/* where your send() is from - it's definitely not the microsoft send, and */
		1398	/* tell me. thank you. */
1273	write (evpipe [1], &old_errno, 1);	1399	write (evpipe [1], &dummy, 1);
1274		1400
1275	errno = old_errno;	1401	errno = old_errno;
1276	}	1402	}
1277	}	1403	}
1278		1404
…		…
1291	}	1417	}
1292	else	1418	else
1293	#endif	1419	#endif
1294	{	1420	{
1295	char dummy;	1421	char dummy;
		1422	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1296	read (evpipe [0], &dummy, 1);	1423	read (evpipe [0], &dummy, 1);
1297	}	1424	}
1298		1425
		1426	#if EV_SIGNAL_ENABLE
1299	if (sig_pending)	1427	if (sig_pending)
1300	{	1428	{
1301	sig_pending = 0;	1429	sig_pending = 0;
1302		1430
1303	for (i = EV_NSIG - 1; i--; )	1431	for (i = EV_NSIG - 1; i--; )
1304	if (expect_false (signals [i].pending))	1432	if (expect_false (signals [i].pending))
1305	ev_feed_signal_event (EV_A_ i + 1);	1433	ev_feed_signal_event (EV_A_ i + 1);
1306	}	1434	}
		1435	#endif
1307		1436
1308	#if EV_ASYNC_ENABLE	1437	#if EV_ASYNC_ENABLE
1309	if (async_pending)	1438	if (async_pending)
1310	{	1439	{
1311	async_pending = 0;	1440	async_pending = 0;
…		…
1320	#endif	1449	#endif
1321	}	1450	}
1322		1451
1323	/*****************************************************************************/	1452	/*****************************************************************************/
1324		1453
		1454	void
		1455	ev_feed_signal (int signum)
		1456	{
		1457	#if EV_MULTIPLICITY
		1458	EV_P = signals [signum - 1].loop;
		1459
		1460	if (!EV_A)
		1461	return;
		1462	#endif
		1463
		1464	signals [signum - 1].pending = 1;
		1465	evpipe_write (EV_A_ &sig_pending);
		1466	}
		1467
1325	static void	1468	static void
1326	ev_sighandler (int signum)	1469	ev_sighandler (int signum)
1327	{	1470	{
1328	#if EV_MULTIPLICITY
1329	EV_P = signals [signum - 1].loop;
1330	#endif
1331
1332	#ifdef _WIN32	1471	#ifdef _WIN32
1333	signal (signum, ev_sighandler);	1472	signal (signum, ev_sighandler);
1334	#endif	1473	#endif
1335		1474
1336	signals [signum - 1].pending = 1;	1475	ev_feed_signal (signum);
1337	evpipe_write (EV_A_ &sig_pending);
1338	}	1476	}
1339		1477
1340	void noinline	1478	void noinline
1341	ev_feed_signal_event (EV_P_ int signum)	1479	ev_feed_signal_event (EV_P_ int signum)
1342	{	1480	{
…		…
1379	break;	1517	break;
1380	}	1518	}
1381	}	1519	}
1382	#endif	1520	#endif
1383		1521
		1522	#endif
		1523
1384	/*****************************************************************************/	1524	/*****************************************************************************/
1385		1525
		1526	#if EV_CHILD_ENABLE
1386	static WL childs [EV_PID_HASHSIZE];	1527	static WL childs [EV_PID_HASHSIZE];
1387
1388	#ifndef _WIN32
1389		1528
1390	static ev_signal childev;	1529	static ev_signal childev;
1391		1530
1392	#ifndef WIFCONTINUED	1531	#ifndef WIFCONTINUED
1393	# define WIFCONTINUED(status) 0	1532	# define WIFCONTINUED(status) 0
…		…
1398	child_reap (EV_P_ int chain, int pid, int status)	1537	child_reap (EV_P_ int chain, int pid, int status)
1399	{	1538	{
1400	ev_child *w;	1539	ev_child *w;
1401	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1540	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1402		1541
1403	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1542	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1404	{	1543	{
1405	if ((w->pid == pid || !w->pid)	1544	if ((w->pid == pid || !w->pid)
1406	&& (!traced || (w->flags & 1)))	1545	&& (!traced || (w->flags & 1)))
1407	{	1546	{
1408	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1547	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
…		…
1433	/* make sure we are called again until all children have been reaped */	1572	/* make sure we are called again until all children have been reaped */
1434	/* we need to do it this way so that the callback gets called before we continue */	1573	/* we need to do it this way so that the callback gets called before we continue */
1435	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1574	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1436		1575
1437	child_reap (EV_A_ pid, pid, status);	1576	child_reap (EV_A_ pid, pid, status);
1438	if (EV_PID_HASHSIZE > 1)	1577	if ((EV_PID_HASHSIZE) > 1)
1439	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1578	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1440	}	1579	}
1441		1580
1442	#endif	1581	#endif
1443		1582
1444	/*****************************************************************************/	1583	/*****************************************************************************/
1445		1584
		1585	#if EV_USE_IOCP
		1586	# include "ev_iocp.c"
		1587	#endif
1446	#if EV_USE_PORT	1588	#if EV_USE_PORT
1447	# include "ev_port.c"	1589	# include "ev_port.c"
1448	#endif	1590	#endif
1449	#if EV_USE_KQUEUE	1591	#if EV_USE_KQUEUE
1450	# include "ev_kqueue.c"	1592	# include "ev_kqueue.c"
…		…
1510	#ifdef __APPLE__	1652	#ifdef __APPLE__
1511	/* only select works correctly on that "unix-certified" platform */	1653	/* only select works correctly on that "unix-certified" platform */
1512	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1654	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1513	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1655	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1514	#endif	1656	#endif
		1657	#ifdef __FreeBSD__
		1658	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1659	#endif
1515		1660
1516	return flags;	1661	return flags;
1517	}	1662	}
1518		1663
1519	unsigned int	1664	unsigned int
1520	ev_embeddable_backends (void)	1665	ev_embeddable_backends (void)
1521	{	1666	{
1522	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	1667	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1523		1668
1524	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	1669	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1525	/* please fix it and tell me how to detect the fix */	1670	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1526	flags &= ~EVBACKEND_EPOLL;	1671	flags &= ~EVBACKEND_EPOLL;
1527		1672
1528	return flags;	1673	return flags;
1529	}	1674	}
1530		1675
1531	unsigned int	1676	unsigned int
1532	ev_backend (EV_P)	1677	ev_backend (EV_P)
1533	{	1678	{
1534	return backend;	1679	return backend;
1535	}	1680	}
1536		1681
1537	#if EV_MINIMAL < 2	1682	#if EV_FEATURE_API
1538	unsigned int	1683	unsigned int
1539	ev_loop_count (EV_P)	1684	ev_iteration (EV_P)
1540	{	1685	{
1541	return loop_count;	1686	return loop_count;
1542	}	1687	}
1543		1688
1544	unsigned int	1689	unsigned int
1545	ev_loop_depth (EV_P)	1690	ev_depth (EV_P)
1546	{	1691	{
1547	return loop_depth;	1692	return loop_depth;
1548	}	1693	}
1549		1694
1550	void	1695	void
…		…
1587	static void noinline	1732	static void noinline
1588	loop_init (EV_P_ unsigned int flags)	1733	loop_init (EV_P_ unsigned int flags)
1589	{	1734	{
1590	if (!backend)	1735	if (!backend)
1591	{	1736	{
		1737	origflags = flags;
		1738
1592	#if EV_USE_REALTIME	1739	#if EV_USE_REALTIME
1593	if (!have_realtime)	1740	if (!have_realtime)
1594	{	1741	{
1595	struct timespec ts;	1742	struct timespec ts;
1596		1743
…		…
1622		1769
1623	ev_rt_now = ev_time ();	1770	ev_rt_now = ev_time ();
1624	mn_now = get_clock ();	1771	mn_now = get_clock ();
1625	now_floor = mn_now;	1772	now_floor = mn_now;
1626	rtmn_diff = ev_rt_now - mn_now;	1773	rtmn_diff = ev_rt_now - mn_now;
1627	#if EV_MINIMAL < 2	1774	#if EV_FEATURE_API
1628	invoke_cb = ev_invoke_pending;	1775	invoke_cb = ev_invoke_pending;
1629	#endif	1776	#endif
1630		1777
1631	io_blocktime = 0.;	1778	io_blocktime = 0.;
1632	timeout_blocktime = 0.;	1779	timeout_blocktime = 0.;
…		…
1641	#endif	1788	#endif
1642	#if EV_USE_SIGNALFD	1789	#if EV_USE_SIGNALFD
1643	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	1790	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1644	#endif	1791	#endif
1645		1792
1646	if (!(flags & 0x0000ffffU))	1793	if (!(flags & EVBACKEND_MASK))
1647	flags |= ev_recommended_backends ();	1794	flags |= ev_recommended_backends ();
1648		1795
		1796	#if EV_USE_IOCP
		1797	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		1798	#endif
1649	#if EV_USE_PORT	1799	#if EV_USE_PORT
1650	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1800	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1651	#endif	1801	#endif
1652	#if EV_USE_KQUEUE	1802	#if EV_USE_KQUEUE
1653	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1803	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1662	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1812	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1663	#endif	1813	#endif
1664		1814
1665	ev_prepare_init (&pending_w, pendingcb);	1815	ev_prepare_init (&pending_w, pendingcb);
1666		1816
		1817	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1667	ev_init (&pipe_w, pipecb);	1818	ev_init (&pipe_w, pipecb);
1668	ev_set_priority (&pipe_w, EV_MAXPRI);	1819	ev_set_priority (&pipe_w, EV_MAXPRI);
		1820	#endif
1669	}	1821	}
1670	}	1822	}
1671		1823
1672	/* free up a loop structure */	1824	/* free up a loop structure */
1673	static void noinline	1825	void
1674	loop_destroy (EV_P)	1826	ev_loop_destroy (EV_P)
1675	{	1827	{
1676	int i;	1828	int i;
		1829
		1830	#if EV_MULTIPLICITY
		1831	/* mimic free (0) */
		1832	if (!EV_A)
		1833	return;
		1834	#endif
		1835
		1836	#if EV_CLEANUP_ENABLE
		1837	/* queue cleanup watchers (and execute them) */
		1838	if (expect_false (cleanupcnt))
		1839	{
		1840	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
		1841	EV_INVOKE_PENDING;
		1842	}
		1843	#endif
		1844
		1845	#if EV_CHILD_ENABLE
		1846	if (ev_is_active (&childev))
		1847	{
		1848	ev_ref (EV_A); /* child watcher */
		1849	ev_signal_stop (EV_A_ &childev);
		1850	}
		1851	#endif
1677		1852
1678	if (ev_is_active (&pipe_w))	1853	if (ev_is_active (&pipe_w))
1679	{	1854	{
1680	/*ev_ref (EV_A);*/	1855	/*ev_ref (EV_A);*/
1681	/*ev_io_stop (EV_A_ &pipe_w);*/	1856	/*ev_io_stop (EV_A_ &pipe_w);*/
…		…
1703	#endif	1878	#endif
1704		1879
1705	if (backend_fd >= 0)	1880	if (backend_fd >= 0)
1706	close (backend_fd);	1881	close (backend_fd);
1707		1882
		1883	#if EV_USE_IOCP
		1884	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		1885	#endif
1708	#if EV_USE_PORT	1886	#if EV_USE_PORT
1709	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1887	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1710	#endif	1888	#endif
1711	#if EV_USE_KQUEUE	1889	#if EV_USE_KQUEUE
1712	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	1890	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1739	array_free (periodic, EMPTY);	1917	array_free (periodic, EMPTY);
1740	#endif	1918	#endif
1741	#if EV_FORK_ENABLE	1919	#if EV_FORK_ENABLE
1742	array_free (fork, EMPTY);	1920	array_free (fork, EMPTY);
1743	#endif	1921	#endif
		1922	#if EV_CLEANUP_ENABLE
		1923	array_free (cleanup, EMPTY);
		1924	#endif
1744	array_free (prepare, EMPTY);	1925	array_free (prepare, EMPTY);
1745	array_free (check, EMPTY);	1926	array_free (check, EMPTY);
1746	#if EV_ASYNC_ENABLE	1927	#if EV_ASYNC_ENABLE
1747	array_free (async, EMPTY);	1928	array_free (async, EMPTY);
1748	#endif	1929	#endif
1749		1930
1750	backend = 0;	1931	backend = 0;
		1932
		1933	#if EV_MULTIPLICITY
		1934	if (ev_is_default_loop (EV_A))
		1935	#endif
		1936	ev_default_loop_ptr = 0;
		1937	#if EV_MULTIPLICITY
		1938	else
		1939	ev_free (EV_A);
		1940	#endif
1751	}	1941	}
1752		1942
1753	#if EV_USE_INOTIFY	1943	#if EV_USE_INOTIFY
1754	inline_size void infy_fork (EV_P);	1944	inline_size void infy_fork (EV_P);
1755	#endif	1945	#endif
…		…
1791	{	1981	{
1792	EV_WIN32_CLOSE_FD (evpipe [0]);	1982	EV_WIN32_CLOSE_FD (evpipe [0]);
1793	EV_WIN32_CLOSE_FD (evpipe [1]);	1983	EV_WIN32_CLOSE_FD (evpipe [1]);
1794	}	1984	}
1795		1985
		1986	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1796	evpipe_init (EV_A);	1987	evpipe_init (EV_A);
1797	/* now iterate over everything, in case we missed something */	1988	/* now iterate over everything, in case we missed something */
1798	pipecb (EV_A_ &pipe_w, EV_READ);	1989	pipecb (EV_A_ &pipe_w, EV_READ);
		1990	#endif
1799	}	1991	}
1800		1992
1801	postfork = 0;	1993	postfork = 0;
1802	}	1994	}
1803		1995
…		…
1812	loop_init (EV_A_ flags);	2004	loop_init (EV_A_ flags);
1813		2005
1814	if (ev_backend (EV_A))	2006	if (ev_backend (EV_A))
1815	return EV_A;	2007	return EV_A;
1816		2008
		2009	ev_free (EV_A);
1817	return 0;	2010	return 0;
1818	}	2011	}
1819		2012
1820	void
1821	ev_loop_destroy (EV_P)
1822	{
1823	loop_destroy (EV_A);
1824	ev_free (loop);
1825	}
1826
1827	void
1828	ev_loop_fork (EV_P)
1829	{
1830	postfork = 1; /* must be in line with ev_default_fork */
1831	}
1832	#endif /* multiplicity */	2013	#endif /* multiplicity */
1833		2014
1834	#if EV_VERIFY	2015	#if EV_VERIFY
1835	static void noinline	2016	static void noinline
1836	verify_watcher (EV_P_ W w)	2017	verify_watcher (EV_P_ W w)
…		…
1865	verify_watcher (EV_A_ ws [cnt]);	2046	verify_watcher (EV_A_ ws [cnt]);
1866	}	2047	}
1867	}	2048	}
1868	#endif	2049	#endif
1869		2050
1870	#if EV_MINIMAL < 2	2051	#if EV_FEATURE_API
1871	void	2052	void
1872	ev_loop_verify (EV_P)	2053	ev_verify (EV_P)
1873	{	2054	{
1874	#if EV_VERIFY	2055	#if EV_VERIFY
1875	int i;	2056	int i;
1876	WL w;	2057	WL w;
1877		2058
…		…
1911	#if EV_FORK_ENABLE	2092	#if EV_FORK_ENABLE
1912	assert (forkmax >= forkcnt);	2093	assert (forkmax >= forkcnt);
1913	array_verify (EV_A_ (W *)forks, forkcnt);	2094	array_verify (EV_A_ (W *)forks, forkcnt);
1914	#endif	2095	#endif
1915		2096
		2097	#if EV_CLEANUP_ENABLE
		2098	assert (cleanupmax >= cleanupcnt);
		2099	array_verify (EV_A_ (W *)cleanups, cleanupcnt);
		2100	#endif
		2101
1916	#if EV_ASYNC_ENABLE	2102	#if EV_ASYNC_ENABLE
1917	assert (asyncmax >= asynccnt);	2103	assert (asyncmax >= asynccnt);
1918	array_verify (EV_A_ (W *)asyncs, asynccnt);	2104	array_verify (EV_A_ (W *)asyncs, asynccnt);
1919	#endif	2105	#endif
1920		2106
		2107	#if EV_PREPARE_ENABLE
1921	assert (preparemax >= preparecnt);	2108	assert (preparemax >= preparecnt);
1922	array_verify (EV_A_ (W *)prepares, preparecnt);	2109	array_verify (EV_A_ (W *)prepares, preparecnt);
		2110	#endif
1923		2111
		2112	#if EV_CHECK_ENABLE
1924	assert (checkmax >= checkcnt);	2113	assert (checkmax >= checkcnt);
1925	array_verify (EV_A_ (W *)checks, checkcnt);	2114	array_verify (EV_A_ (W *)checks, checkcnt);
		2115	#endif
1926		2116
1927	# if 0	2117	# if 0
		2118	#if EV_CHILD_ENABLE
1928	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	2119	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1929	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	2120	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		2121	#endif
1930	# endif	2122	# endif
1931	#endif	2123	#endif
1932	}	2124	}
1933	#endif	2125	#endif
1934		2126
1935	#if EV_MULTIPLICITY	2127	#if EV_MULTIPLICITY
1936	struct ev_loop *	2128	struct ev_loop *
1937	ev_default_loop_init (unsigned int flags)
1938	#else	2129	#else
1939	int	2130	int
		2131	#endif
1940	ev_default_loop (unsigned int flags)	2132	ev_default_loop (unsigned int flags)
1941	#endif
1942	{	2133	{
1943	if (!ev_default_loop_ptr)	2134	if (!ev_default_loop_ptr)
1944	{	2135	{
1945	#if EV_MULTIPLICITY	2136	#if EV_MULTIPLICITY
1946	EV_P = ev_default_loop_ptr = &default_loop_struct;	2137	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
1950		2141
1951	loop_init (EV_A_ flags);	2142	loop_init (EV_A_ flags);
1952		2143
1953	if (ev_backend (EV_A))	2144	if (ev_backend (EV_A))
1954	{	2145	{
1955	#ifndef _WIN32	2146	#if EV_CHILD_ENABLE
1956	ev_signal_init (&childev, childcb, SIGCHLD);	2147	ev_signal_init (&childev, childcb, SIGCHLD);
1957	ev_set_priority (&childev, EV_MAXPRI);	2148	ev_set_priority (&childev, EV_MAXPRI);
1958	ev_signal_start (EV_A_ &childev);	2149	ev_signal_start (EV_A_ &childev);
1959	ev_unref (EV_A); /* child watcher should not keep loop alive */	2150	ev_unref (EV_A); /* child watcher should not keep loop alive */
1960	#endif	2151	#endif
…		…
1965		2156
1966	return ev_default_loop_ptr;	2157	return ev_default_loop_ptr;
1967	}	2158	}
1968		2159
1969	void	2160	void
1970	ev_default_destroy (void)	2161	ev_loop_fork (EV_P)
1971	{	2162	{
1972	#if EV_MULTIPLICITY
1973	EV_P = ev_default_loop_ptr;
1974	#endif
1975
1976	ev_default_loop_ptr = 0;
1977
1978	#ifndef _WIN32
1979	ev_ref (EV_A); /* child watcher */
1980	ev_signal_stop (EV_A_ &childev);
1981	#endif
1982
1983	loop_destroy (EV_A);
1984	}
1985
1986	void
1987	ev_default_fork (void)
1988	{
1989	#if EV_MULTIPLICITY
1990	EV_P = ev_default_loop_ptr;
1991	#endif
1992
1993	postfork = 1; /* must be in line with ev_loop_fork */	2163	postfork = 1; /* must be in line with ev_default_fork */
1994	}	2164	}
1995		2165
1996	/*****************************************************************************/	2166	/*****************************************************************************/
1997		2167
1998	void	2168	void
…		…
2020		2190
2021	for (pri = NUMPRI; pri--; )	2191	for (pri = NUMPRI; pri--; )
2022	while (pendingcnt [pri])	2192	while (pendingcnt [pri])
2023	{	2193	{
2024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2194	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2025
2026	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2027	/* ^ this is no longer true, as pending_w could be here */
2028		2195
2029	p->w->pending = 0;	2196	p->w->pending = 0;
2030	EV_CB_INVOKE (p->w, p->events);	2197	EV_CB_INVOKE (p->w, p->events);
2031	EV_FREQUENT_CHECK;	2198	EV_FREQUENT_CHECK;
2032	}	2199	}
…		…
2089	EV_FREQUENT_CHECK;	2256	EV_FREQUENT_CHECK;
2090	feed_reverse (EV_A_ (W)w);	2257	feed_reverse (EV_A_ (W)w);
2091	}	2258	}
2092	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2259	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2093		2260
2094	feed_reverse_done (EV_A_ EV_TIMEOUT);	2261	feed_reverse_done (EV_A_ EV_TIMER);
2095	}	2262	}
2096	}	2263	}
2097		2264
2098	#if EV_PERIODIC_ENABLE	2265	#if EV_PERIODIC_ENABLE
		2266
		2267	static void noinline
		2268	periodic_recalc (EV_P_ ev_periodic *w)
		2269	{
		2270	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
		2271	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
		2272
		2273	/* the above almost always errs on the low side */
		2274	while (at <= ev_rt_now)
		2275	{
		2276	ev_tstamp nat = at + w->interval;
		2277
		2278	/* when resolution fails us, we use ev_rt_now */
		2279	if (expect_false (nat == at))
		2280	{
		2281	at = ev_rt_now;
		2282	break;
		2283	}
		2284
		2285	at = nat;
		2286	}
		2287
		2288	ev_at (w) = at;
		2289	}
		2290
2099	/* make periodics pending */	2291	/* make periodics pending */
2100	inline_size void	2292	inline_size void
2101	periodics_reify (EV_P)	2293	periodics_reify (EV_P)
2102	{	2294	{
2103	EV_FREQUENT_CHECK;	2295	EV_FREQUENT_CHECK;
…		…
2122	ANHE_at_cache (periodics [HEAP0]);	2314	ANHE_at_cache (periodics [HEAP0]);
2123	downheap (periodics, periodiccnt, HEAP0);	2315	downheap (periodics, periodiccnt, HEAP0);
2124	}	2316	}
2125	else if (w->interval)	2317	else if (w->interval)
2126	{	2318	{
2127	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2319	periodic_recalc (EV_A_ w);
2128	/* if next trigger time is not sufficiently in the future, put it there */
2129	/* this might happen because of floating point inexactness */
2130	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2131	{
2132	ev_at (w) += w->interval;
2133
2134	/* if interval is unreasonably low we might still have a time in the past */
2135	/* so correct this. this will make the periodic very inexact, but the user */
2136	/* has effectively asked to get triggered more often than possible */
2137	if (ev_at (w) < ev_rt_now)
2138	ev_at (w) = ev_rt_now;
2139	}
2140
2141	ANHE_at_cache (periodics [HEAP0]);	2320	ANHE_at_cache (periodics [HEAP0]);
2142	downheap (periodics, periodiccnt, HEAP0);	2321	downheap (periodics, periodiccnt, HEAP0);
2143	}	2322	}
2144	else	2323	else
2145	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	2324	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
…		…
2152	feed_reverse_done (EV_A_ EV_PERIODIC);	2331	feed_reverse_done (EV_A_ EV_PERIODIC);
2153	}	2332	}
2154	}	2333	}
2155		2334
2156	/* simply recalculate all periodics */	2335	/* simply recalculate all periodics */
2157	/* TODO: maybe ensure that at leats one event happens when jumping forward? */	2336	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2158	static void noinline	2337	static void noinline
2159	periodics_reschedule (EV_P)	2338	periodics_reschedule (EV_P)
2160	{	2339	{
2161	int i;	2340	int i;
2162		2341
…		…
2166	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);	2345	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2167		2346
2168	if (w->reschedule_cb)	2347	if (w->reschedule_cb)
2169	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2348	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2170	else if (w->interval)	2349	else if (w->interval)
2171	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2350	periodic_recalc (EV_A_ w);
2172		2351
2173	ANHE_at_cache (periodics [i]);	2352	ANHE_at_cache (periodics [i]);
2174	}	2353	}
2175		2354
2176	reheap (periodics, periodiccnt);	2355	reheap (periodics, periodiccnt);
…		…
2223	* doesn't hurt either as we only do this on time-jumps or	2402	* doesn't hurt either as we only do this on time-jumps or
2224	* in the unlikely event of having been preempted here.	2403	* in the unlikely event of having been preempted here.
2225	*/	2404	*/
2226	for (i = 4; --i; )	2405	for (i = 4; --i; )
2227	{	2406	{
		2407	ev_tstamp diff;
2228	rtmn_diff = ev_rt_now - mn_now;	2408	rtmn_diff = ev_rt_now - mn_now;
2229		2409
		2410	diff = odiff - rtmn_diff;
		2411
2230	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))	2412	if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2231	return; /* all is well */	2413	return; /* all is well */
2232		2414
2233	ev_rt_now = ev_time ();	2415	ev_rt_now = ev_time ();
2234	mn_now = get_clock ();	2416	mn_now = get_clock ();
2235	now_floor = mn_now;	2417	now_floor = mn_now;
…		…
2258	mn_now = ev_rt_now;	2440	mn_now = ev_rt_now;
2259	}	2441	}
2260	}	2442	}
2261		2443
2262	void	2444	void
2263	ev_loop (EV_P_ int flags)	2445	ev_run (EV_P_ int flags)
2264	{	2446	{
2265	#if EV_MINIMAL < 2	2447	#if EV_FEATURE_API
2266	++loop_depth;	2448	++loop_depth;
2267	#endif	2449	#endif
2268		2450
2269	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2451	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2270		2452
2271	loop_done = EVUNLOOP_CANCEL;	2453	loop_done = EVBREAK_CANCEL;
2272		2454
2273	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2455	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2274		2456
2275	do	2457	do
2276	{	2458	{
2277	#if EV_VERIFY >= 2	2459	#if EV_VERIFY >= 2
2278	ev_loop_verify (EV_A);	2460	ev_verify (EV_A);
2279	#endif	2461	#endif
2280		2462
2281	#ifndef _WIN32	2463	#ifndef _WIN32
2282	if (expect_false (curpid)) /* penalise the forking check even more */	2464	if (expect_false (curpid)) /* penalise the forking check even more */
2283	if (expect_false (getpid () != curpid))	2465	if (expect_false (getpid () != curpid))
…		…
2295	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2477	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2296	EV_INVOKE_PENDING;	2478	EV_INVOKE_PENDING;
2297	}	2479	}
2298	#endif	2480	#endif
2299		2481
		2482	#if EV_PREPARE_ENABLE
2300	/* queue prepare watchers (and execute them) */	2483	/* queue prepare watchers (and execute them) */
2301	if (expect_false (preparecnt))	2484	if (expect_false (preparecnt))
2302	{	2485	{
2303	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2486	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2304	EV_INVOKE_PENDING;	2487	EV_INVOKE_PENDING;
2305	}	2488	}
		2489	#endif
2306		2490
2307	if (expect_false (loop_done))	2491	if (expect_false (loop_done))
2308	break;	2492	break;
2309		2493
2310	/* we might have forked, so reify kernel state if necessary */	2494	/* we might have forked, so reify kernel state if necessary */
…		…
2317	/* calculate blocking time */	2501	/* calculate blocking time */
2318	{	2502	{
2319	ev_tstamp waittime = 0.;	2503	ev_tstamp waittime = 0.;
2320	ev_tstamp sleeptime = 0.;	2504	ev_tstamp sleeptime = 0.;
2321		2505
		2506	/* remember old timestamp for io_blocktime calculation */
		2507	ev_tstamp prev_mn_now = mn_now;
		2508
		2509	/* update time to cancel out callback processing overhead */
		2510	time_update (EV_A_ 1e100);
		2511
2322	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2512	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2323	{	2513	{
2324	/* remember old timestamp for io_blocktime calculation */
2325	ev_tstamp prev_mn_now = mn_now;
2326
2327	/* update time to cancel out callback processing overhead */
2328	time_update (EV_A_ 1e100);
2329
2330	waittime = MAX_BLOCKTIME;	2514	waittime = MAX_BLOCKTIME;
2331		2515
2332	if (timercnt)	2516	if (timercnt)
2333	{	2517	{
2334	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2518	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
…		…
2361	waittime -= sleeptime;	2545	waittime -= sleeptime;
2362	}	2546	}
2363	}	2547	}
2364	}	2548	}
2365		2549
2366	#if EV_MINIMAL < 2	2550	#if EV_FEATURE_API
2367	++loop_count;	2551	++loop_count;
2368	#endif	2552	#endif
2369	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2553	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2370	backend_poll (EV_A_ waittime);	2554	backend_poll (EV_A_ waittime);
2371	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2555	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2372		2556
2373	/* update ev_rt_now, do magic */	2557	/* update ev_rt_now, do magic */
2374	time_update (EV_A_ waittime + sleeptime);	2558	time_update (EV_A_ waittime + sleeptime);
2375	}	2559	}
2376		2560
…		…
2383	#if EV_IDLE_ENABLE	2567	#if EV_IDLE_ENABLE
2384	/* queue idle watchers unless other events are pending */	2568	/* queue idle watchers unless other events are pending */
2385	idle_reify (EV_A);	2569	idle_reify (EV_A);
2386	#endif	2570	#endif
2387		2571
		2572	#if EV_CHECK_ENABLE
2388	/* queue check watchers, to be executed first */	2573	/* queue check watchers, to be executed first */
2389	if (expect_false (checkcnt))	2574	if (expect_false (checkcnt))
2390	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2575	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2576	#endif
2391		2577
2392	EV_INVOKE_PENDING;	2578	EV_INVOKE_PENDING;
2393	}	2579	}
2394	while (expect_true (	2580	while (expect_true (
2395	activecnt	2581	activecnt
2396	&& !loop_done	2582	&& !loop_done
2397	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2583	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2398	));	2584	));
2399		2585
2400	if (loop_done == EVUNLOOP_ONE)	2586	if (loop_done == EVBREAK_ONE)
2401	loop_done = EVUNLOOP_CANCEL;	2587	loop_done = EVBREAK_CANCEL;
2402		2588
2403	#if EV_MINIMAL < 2	2589	#if EV_FEATURE_API
2404	--loop_depth;	2590	--loop_depth;
2405	#endif	2591	#endif
2406	}	2592	}
2407		2593
2408	void	2594	void
2409	ev_unloop (EV_P_ int how)	2595	ev_break (EV_P_ int how)
2410	{	2596	{
2411	loop_done = how;	2597	loop_done = how;
2412	}	2598	}
2413		2599
2414	void	2600	void
…		…
2562	EV_FREQUENT_CHECK;	2748	EV_FREQUENT_CHECK;
2563		2749
2564	wlist_del (&anfds[w->fd].head, (WL)w);	2750	wlist_del (&anfds[w->fd].head, (WL)w);
2565	ev_stop (EV_A_ (W)w);	2751	ev_stop (EV_A_ (W)w);
2566		2752
2567	fd_change (EV_A_ w->fd, 1);	2753	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2568		2754
2569	EV_FREQUENT_CHECK;	2755	EV_FREQUENT_CHECK;
2570	}	2756	}
2571		2757
2572	void noinline	2758	void noinline
…		…
2664	if (w->reschedule_cb)	2850	if (w->reschedule_cb)
2665	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2851	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2666	else if (w->interval)	2852	else if (w->interval)
2667	{	2853	{
2668	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));	2854	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2669	/* this formula differs from the one in periodic_reify because we do not always round up */	2855	periodic_recalc (EV_A_ w);
2670	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2671	}	2856	}
2672	else	2857	else
2673	ev_at (w) = w->offset;	2858	ev_at (w) = w->offset;
2674		2859
2675	EV_FREQUENT_CHECK;	2860	EV_FREQUENT_CHECK;
…		…
2724	#endif	2909	#endif
2725		2910
2726	#ifndef SA_RESTART	2911	#ifndef SA_RESTART
2727	# define SA_RESTART 0	2912	# define SA_RESTART 0
2728	#endif	2913	#endif
		2914
		2915	#if EV_SIGNAL_ENABLE
2729		2916
2730	void noinline	2917	void noinline
2731	ev_signal_start (EV_P_ ev_signal *w)	2918	ev_signal_start (EV_P_ ev_signal *w)
2732	{	2919	{
2733	if (expect_false (ev_is_active (w)))	2920	if (expect_false (ev_is_active (w)))
…		…
2794	sa.sa_handler = ev_sighandler;	2981	sa.sa_handler = ev_sighandler;
2795	sigfillset (&sa.sa_mask);	2982	sigfillset (&sa.sa_mask);
2796	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2983	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2797	sigaction (w->signum, &sa, 0);	2984	sigaction (w->signum, &sa, 0);
2798		2985
		2986	if (origflags & EVFLAG_NOSIGMASK)
		2987	{
2799	sigemptyset (&sa.sa_mask);	2988	sigemptyset (&sa.sa_mask);
2800	sigaddset (&sa.sa_mask, w->signum);	2989	sigaddset (&sa.sa_mask, w->signum);
2801	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);	2990	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		2991	}
2802	#endif	2992	#endif
2803	}	2993	}
2804		2994
2805	EV_FREQUENT_CHECK;	2995	EV_FREQUENT_CHECK;
2806	}	2996	}
…		…
2840	}	3030	}
2841		3031
2842	EV_FREQUENT_CHECK;	3032	EV_FREQUENT_CHECK;
2843	}	3033	}
2844		3034
		3035	#endif
		3036
		3037	#if EV_CHILD_ENABLE
		3038
2845	void	3039	void
2846	ev_child_start (EV_P_ ev_child *w)	3040	ev_child_start (EV_P_ ev_child *w)
2847	{	3041	{
2848	#if EV_MULTIPLICITY	3042	#if EV_MULTIPLICITY
2849	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3043	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
…		…
2852	return;	3046	return;
2853		3047
2854	EV_FREQUENT_CHECK;	3048	EV_FREQUENT_CHECK;
2855		3049
2856	ev_start (EV_A_ (W)w, 1);	3050	ev_start (EV_A_ (W)w, 1);
2857	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	3051	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2858		3052
2859	EV_FREQUENT_CHECK;	3053	EV_FREQUENT_CHECK;
2860	}	3054	}
2861		3055
2862	void	3056	void
…		…
2866	if (expect_false (!ev_is_active (w)))	3060	if (expect_false (!ev_is_active (w)))
2867	return;	3061	return;
2868		3062
2869	EV_FREQUENT_CHECK;	3063	EV_FREQUENT_CHECK;
2870		3064
2871	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	3065	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2872	ev_stop (EV_A_ (W)w);	3066	ev_stop (EV_A_ (W)w);
2873		3067
2874	EV_FREQUENT_CHECK;	3068	EV_FREQUENT_CHECK;
2875	}	3069	}
		3070
		3071	#endif
2876		3072
2877	#if EV_STAT_ENABLE	3073	#if EV_STAT_ENABLE
2878		3074
2879	# ifdef _WIN32	3075	# ifdef _WIN32
2880	# undef lstat	3076	# undef lstat
…		…
2941	if (!pend || pend == path)	3137	if (!pend || pend == path)
2942	break;	3138	break;
2943		3139
2944	*pend = 0;	3140	*pend = 0;
2945	w->wd = inotify_add_watch (fs_fd, path, mask);	3141	w->wd = inotify_add_watch (fs_fd, path, mask);
2946	}	3142	}
2947	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	3143	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2948	}	3144	}
2949	}	3145	}
2950		3146
2951	if (w->wd >= 0)	3147	if (w->wd >= 0)
2952	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3148	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2953		3149
2954	/* now re-arm timer, if required */	3150	/* now re-arm timer, if required */
2955	if (ev_is_active (&w->timer)) ev_ref (EV_A);	3151	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2956	ev_timer_again (EV_A_ &w->timer);	3152	ev_timer_again (EV_A_ &w->timer);
2957	if (ev_is_active (&w->timer)) ev_unref (EV_A);	3153	if (ev_is_active (&w->timer)) ev_unref (EV_A);
…		…
2965		3161
2966	if (wd < 0)	3162	if (wd < 0)
2967	return;	3163	return;
2968		3164
2969	w->wd = -2;	3165	w->wd = -2;
2970	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3166	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2971	wlist_del (&fs_hash [slot].head, (WL)w);	3167	wlist_del (&fs_hash [slot].head, (WL)w);
2972		3168
2973	/* remove this watcher, if others are watching it, they will rearm */	3169	/* remove this watcher, if others are watching it, they will rearm */
2974	inotify_rm_watch (fs_fd, wd);	3170	inotify_rm_watch (fs_fd, wd);
2975	}	3171	}
…		…
2977	static void noinline	3173	static void noinline
2978	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3174	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2979	{	3175	{
2980	if (slot < 0)	3176	if (slot < 0)
2981	/* overflow, need to check for all hash slots */	3177	/* overflow, need to check for all hash slots */
2982	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3178	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2983	infy_wd (EV_A_ slot, wd, ev);	3179	infy_wd (EV_A_ slot, wd, ev);
2984	else	3180	else
2985	{	3181	{
2986	WL w_;	3182	WL w_;
2987		3183
2988	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3184	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2989	{	3185	{
2990	ev_stat *w = (ev_stat *)w_;	3186	ev_stat *w = (ev_stat *)w_;
2991	w_ = w_->next; /* lets us remove this watcher and all before it */	3187	w_ = w_->next; /* lets us remove this watcher and all before it */
2992		3188
2993	if (w->wd == wd || wd == -1)	3189	if (w->wd == wd || wd == -1)
2994	{	3190	{
2995	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3191	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2996	{	3192	{
2997	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3193	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2998	w->wd = -1;	3194	w->wd = -1;
2999	infy_add (EV_A_ w); /* re-add, no matter what */	3195	infy_add (EV_A_ w); /* re-add, no matter what */
3000	}	3196	}
3001		3197
3002	stat_timer_cb (EV_A_ &w->timer, 0);	3198	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
3016	{	3212	{
3017	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);	3213	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
3018	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3214	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3019	ofs += sizeof (struct inotify_event) + ev->len;	3215	ofs += sizeof (struct inotify_event) + ev->len;
3020	}	3216	}
3021	}
3022
3023	inline_size unsigned int
3024	ev_linux_version (void)
3025	{
3026	struct utsname buf;
3027	unsigned int v;
3028	int i;
3029	char *p = buf.release;
3030
3031	if (uname (&buf))
3032	return 0;
3033
3034	for (i = 3+1; --i; )
3035	{
3036	unsigned int c = 0;
3037
3038	for (;;)
3039	{
3040	if (*p >= '0' && *p <= '9')
3041	c = c * 10 + *p++ - '0';
3042	else
3043	{
3044	p += *p == '.';
3045	break;
3046	}
3047	}
3048
3049	v = (v << 8) | c;
3050	}
3051
3052	return v;
3053	}	3217	}
3054		3218
3055	inline_size void	3219	inline_size void
3056	ev_check_2625 (EV_P)	3220	ev_check_2625 (EV_P)
3057	{	3221	{
…		…
3116	ev_io_set (&fs_w, fs_fd, EV_READ);	3280	ev_io_set (&fs_w, fs_fd, EV_READ);
3117	ev_io_start (EV_A_ &fs_w);	3281	ev_io_start (EV_A_ &fs_w);
3118	ev_unref (EV_A);	3282	ev_unref (EV_A);
3119	}	3283	}
3120		3284
3121	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3285	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3122	{	3286	{
3123	WL w_ = fs_hash [slot].head;	3287	WL w_ = fs_hash [slot].head;
3124	fs_hash [slot].head = 0;	3288	fs_hash [slot].head = 0;
3125		3289
3126	while (w_)	3290	while (w_)
…		…
3301		3465
3302	EV_FREQUENT_CHECK;	3466	EV_FREQUENT_CHECK;
3303	}	3467	}
3304	#endif	3468	#endif
3305		3469
		3470	#if EV_PREPARE_ENABLE
3306	void	3471	void
3307	ev_prepare_start (EV_P_ ev_prepare *w)	3472	ev_prepare_start (EV_P_ ev_prepare *w)
3308	{	3473	{
3309	if (expect_false (ev_is_active (w)))	3474	if (expect_false (ev_is_active (w)))
3310	return;	3475	return;
…		…
3336		3501
3337	ev_stop (EV_A_ (W)w);	3502	ev_stop (EV_A_ (W)w);
3338		3503
3339	EV_FREQUENT_CHECK;	3504	EV_FREQUENT_CHECK;
3340	}	3505	}
		3506	#endif
3341		3507
		3508	#if EV_CHECK_ENABLE
3342	void	3509	void
3343	ev_check_start (EV_P_ ev_check *w)	3510	ev_check_start (EV_P_ ev_check *w)
3344	{	3511	{
3345	if (expect_false (ev_is_active (w)))	3512	if (expect_false (ev_is_active (w)))
3346	return;	3513	return;
…		…
3372		3539
3373	ev_stop (EV_A_ (W)w);	3540	ev_stop (EV_A_ (W)w);
3374		3541
3375	EV_FREQUENT_CHECK;	3542	EV_FREQUENT_CHECK;
3376	}	3543	}
		3544	#endif
3377		3545
3378	#if EV_EMBED_ENABLE	3546	#if EV_EMBED_ENABLE
3379	void noinline	3547	void noinline
3380	ev_embed_sweep (EV_P_ ev_embed *w)	3548	ev_embed_sweep (EV_P_ ev_embed *w)
3381	{	3549	{
3382	ev_loop (w->other, EVLOOP_NONBLOCK);	3550	ev_run (w->other, EVRUN_NOWAIT);
3383	}	3551	}
3384		3552
3385	static void	3553	static void
3386	embed_io_cb (EV_P_ ev_io *io, int revents)	3554	embed_io_cb (EV_P_ ev_io *io, int revents)
3387	{	3555	{
3388	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	3556	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3389		3557
3390	if (ev_cb (w))	3558	if (ev_cb (w))
3391	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3559	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3392	else	3560	else
3393	ev_loop (w->other, EVLOOP_NONBLOCK);	3561	ev_run (w->other, EVRUN_NOWAIT);
3394	}	3562	}
3395		3563
3396	static void	3564	static void
3397	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3565	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3398	{	3566	{
…		…
3402	EV_P = w->other;	3570	EV_P = w->other;
3403		3571
3404	while (fdchangecnt)	3572	while (fdchangecnt)
3405	{	3573	{
3406	fd_reify (EV_A);	3574	fd_reify (EV_A);
3407	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3575	ev_run (EV_A_ EVRUN_NOWAIT);
3408	}	3576	}
3409	}	3577	}
3410	}	3578	}
3411		3579
3412	static void	3580	static void
…		…
3418		3586
3419	{	3587	{
3420	EV_P = w->other;	3588	EV_P = w->other;
3421		3589
3422	ev_loop_fork (EV_A);	3590	ev_loop_fork (EV_A);
3423	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3591	ev_run (EV_A_ EVRUN_NOWAIT);
3424	}	3592	}
3425		3593
3426	ev_embed_start (EV_A_ w);	3594	ev_embed_start (EV_A_ w);
3427	}	3595	}
3428		3596
…		…
3520		3688
3521	EV_FREQUENT_CHECK;	3689	EV_FREQUENT_CHECK;
3522	}	3690	}
3523	#endif	3691	#endif
3524		3692
3525	#if EV_ASYNC_ENABLE	3693	#if EV_CLEANUP_ENABLE
3526	void	3694	void
3527	ev_async_start (EV_P_ ev_async *w)	3695	ev_cleanup_start (EV_P_ ev_cleanup *w)
3528	{	3696	{
3529	if (expect_false (ev_is_active (w)))	3697	if (expect_false (ev_is_active (w)))
3530	return;	3698	return;
		3699
		3700	EV_FREQUENT_CHECK;
		3701
		3702	ev_start (EV_A_ (W)w, ++cleanupcnt);
		3703	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
		3704	cleanups [cleanupcnt - 1] = w;
		3705
		3706	/* cleanup watchers should never keep a refcount on the loop */
		3707	ev_unref (EV_A);
		3708	EV_FREQUENT_CHECK;
		3709	}
		3710
		3711	void
		3712	ev_cleanup_stop (EV_P_ ev_cleanup *w)
		3713	{
		3714	clear_pending (EV_A_ (W)w);
		3715	if (expect_false (!ev_is_active (w)))
		3716	return;
		3717
		3718	EV_FREQUENT_CHECK;
		3719	ev_ref (EV_A);
		3720
		3721	{
		3722	int active = ev_active (w);
		3723
		3724	cleanups [active - 1] = cleanups [--cleanupcnt];
		3725	ev_active (cleanups [active - 1]) = active;
		3726	}
		3727
		3728	ev_stop (EV_A_ (W)w);
		3729
		3730	EV_FREQUENT_CHECK;
		3731	}
		3732	#endif
		3733
		3734	#if EV_ASYNC_ENABLE
		3735	void
		3736	ev_async_start (EV_P_ ev_async *w)
		3737	{
		3738	if (expect_false (ev_is_active (w)))
		3739	return;
		3740
		3741	w->sent = 0;
3531		3742
3532	evpipe_init (EV_A);	3743	evpipe_init (EV_A);
3533		3744
3534	EV_FREQUENT_CHECK;	3745	EV_FREQUENT_CHECK;
3535		3746
…		…
3613	{	3824	{
3614	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3825	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3615		3826
3616	if (expect_false (!once))	3827	if (expect_false (!once))
3617	{	3828	{
3618	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3829	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3619	return;	3830	return;
3620	}	3831	}
3621		3832
3622	once->cb = cb;	3833	once->cb = cb;
3623	once->arg = arg;	3834	once->arg = arg;
…		…
3710	if (types & EV_ASYNC)	3921	if (types & EV_ASYNC)
3711	for (i = asynccnt; i--; )	3922	for (i = asynccnt; i--; )
3712	cb (EV_A_ EV_ASYNC, asyncs [i]);	3923	cb (EV_A_ EV_ASYNC, asyncs [i]);
3713	#endif	3924	#endif
3714		3925
		3926	#if EV_PREPARE_ENABLE
3715	if (types & EV_PREPARE)	3927	if (types & EV_PREPARE)
3716	for (i = preparecnt; i--; )	3928	for (i = preparecnt; i--; )
3717	#if EV_EMBED_ENABLE	3929	# if EV_EMBED_ENABLE
3718	if (ev_cb (prepares [i]) != embed_prepare_cb)	3930	if (ev_cb (prepares [i]) != embed_prepare_cb)
3719	#endif	3931	# endif
3720	cb (EV_A_ EV_PREPARE, prepares [i]);	3932	cb (EV_A_ EV_PREPARE, prepares [i]);
		3933	#endif
3721		3934
		3935	#if EV_CHECK_ENABLE
3722	if (types & EV_CHECK)	3936	if (types & EV_CHECK)
3723	for (i = checkcnt; i--; )	3937	for (i = checkcnt; i--; )
3724	cb (EV_A_ EV_CHECK, checks [i]);	3938	cb (EV_A_ EV_CHECK, checks [i]);
		3939	#endif
3725		3940
		3941	#if EV_SIGNAL_ENABLE
3726	if (types & EV_SIGNAL)	3942	if (types & EV_SIGNAL)
3727	for (i = 0; i < EV_NSIG - 1; ++i)	3943	for (i = 0; i < EV_NSIG - 1; ++i)
3728	for (wl = signals [i].head; wl; )	3944	for (wl = signals [i].head; wl; )
3729	{	3945	{
3730	wn = wl->next;	3946	wn = wl->next;
3731	cb (EV_A_ EV_SIGNAL, wl);	3947	cb (EV_A_ EV_SIGNAL, wl);
3732	wl = wn;	3948	wl = wn;
3733	}	3949	}
		3950	#endif
3734		3951
		3952	#if EV_CHILD_ENABLE
3735	if (types & EV_CHILD)	3953	if (types & EV_CHILD)
3736	for (i = EV_PID_HASHSIZE; i--; )	3954	for (i = (EV_PID_HASHSIZE); i--; )
3737	for (wl = childs [i]; wl; )	3955	for (wl = childs [i]; wl; )
3738	{	3956	{
3739	wn = wl->next;	3957	wn = wl->next;
3740	cb (EV_A_ EV_CHILD, wl);	3958	cb (EV_A_ EV_CHILD, wl);
3741	wl = wn;	3959	wl = wn;
3742	}	3960	}
		3961	#endif
3743	/* EV_STAT 0x00001000 /* stat data changed */	3962	/* EV_STAT 0x00001000 /* stat data changed */
3744	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3963	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3745	}	3964	}
3746	#endif	3965	#endif
3747		3966
3748	#if EV_MULTIPLICITY	3967	#if EV_MULTIPLICITY
3749	#include "ev_wrap.h"	3968	#include "ev_wrap.h"
3750	#endif	3969	#endif
3751		3970
3752	#ifdef __cplusplus	3971	EV_CPP(})
3753	}
3754	#endif
3755		3972

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines