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Comparing libev/ev.c (file contents):
Revision 1.301 by root, Wed Jul 15 16:58:53 2009 UTC vs.
Revision 1.344 by root, Fri Jul 9 20:55:14 2010 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
77	# ifndef EV_USE_REALTIME	77	# ifndef EV_USE_REALTIME
78	# define EV_USE_REALTIME 0	78	# define EV_USE_REALTIME 0
79	# endif	79	# endif
80	# endif	80	# endif
81		81
		82	# if HAVE_NANOSLEEP
82	# ifndef EV_USE_NANOSLEEP	83	# ifndef EV_USE_NANOSLEEP
83	# if HAVE_NANOSLEEP
84	# define EV_USE_NANOSLEEP 1	84	# define EV_USE_NANOSLEEP EV_FEATURE_OS
		85	# endif
85	# else	86	# else
		87	# undef EV_USE_NANOSLEEP
86	# define EV_USE_NANOSLEEP 0	88	# define EV_USE_NANOSLEEP 0
		89	# endif
		90
		91	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		92	# ifndef EV_USE_SELECT
		93	# define EV_USE_SELECT EV_FEATURE_BACKENDS
87	# endif	94	# endif
		95	# else
		96	# undef EV_USE_SELECT
		97	# define EV_USE_SELECT 0
88	# endif	98	# endif
89		99
		100	# if HAVE_POLL && HAVE_POLL_H
90	# ifndef EV_USE_SELECT	101	# ifndef EV_USE_POLL
91	# if HAVE_SELECT && HAVE_SYS_SELECT_H	102	# define EV_USE_POLL EV_FEATURE_BACKENDS
92	# define EV_USE_SELECT 1
93	# else
94	# define EV_USE_SELECT 0
95	# endif	103	# endif
96	# endif
97
98	# ifndef EV_USE_POLL
99	# if HAVE_POLL && HAVE_POLL_H
100	# define EV_USE_POLL 1
101	# else	104	# else
		105	# undef EV_USE_POLL
102	# define EV_USE_POLL 0	106	# define EV_USE_POLL 0
103	# endif
104	# endif	107	# endif
105		108
106	# ifndef EV_USE_EPOLL
107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	109	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108	# define EV_USE_EPOLL 1	110	# ifndef EV_USE_EPOLL
109	# else	111	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110	# define EV_USE_EPOLL 0
111	# endif	112	# endif
		113	# else
		114	# undef EV_USE_EPOLL
		115	# define EV_USE_EPOLL 0
112	# endif	116	# endif
113		117
		118	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114	# ifndef EV_USE_KQUEUE	119	# ifndef EV_USE_KQUEUE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	120	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116	# define EV_USE_KQUEUE 1
117	# else
118	# define EV_USE_KQUEUE 0
119	# endif	121	# endif
		122	# else
		123	# undef EV_USE_KQUEUE
		124	# define EV_USE_KQUEUE 0
120	# endif	125	# endif
121		126
122	# ifndef EV_USE_PORT
123	# if HAVE_PORT_H && HAVE_PORT_CREATE	127	# if HAVE_PORT_H && HAVE_PORT_CREATE
124	# define EV_USE_PORT 1	128	# ifndef EV_USE_PORT
125	# else	129	# define EV_USE_PORT EV_FEATURE_BACKENDS
126	# define EV_USE_PORT 0
127	# endif	130	# endif
		131	# else
		132	# undef EV_USE_PORT
		133	# define EV_USE_PORT 0
128	# endif	134	# endif
129		135
130	# ifndef EV_USE_INOTIFY
131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	136	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132	# define EV_USE_INOTIFY 1	137	# ifndef EV_USE_INOTIFY
133	# else
134	# define EV_USE_INOTIFY 0	138	# define EV_USE_INOTIFY EV_FEATURE_OS
135	# endif	139	# endif
		140	# else
		141	# undef EV_USE_INOTIFY
		142	# define EV_USE_INOTIFY 0
136	# endif	143	# endif
137		144
		145	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_SIGNALFD
139	# if HAVE_EVENTFD	147	# define EV_USE_SIGNALFD EV_FEATURE_OS
140	# define EV_USE_EVENTFD 1
141	# else
142	# define EV_USE_EVENTFD 0
143	# endif	148	# endif
		149	# else
		150	# undef EV_USE_SIGNALFD
		151	# define EV_USE_SIGNALFD 0
		152	# endif
		153
		154	# if HAVE_EVENTFD
		155	# ifndef EV_USE_EVENTFD
		156	# define EV_USE_EVENTFD EV_FEATURE_OS
		157	# endif
		158	# else
		159	# undef EV_USE_EVENTFD
		160	# define EV_USE_EVENTFD 0
144	# endif	161	# endif
145		162
146	#endif	163	#endif
147		164
148	#include <math.h>	165	#include <math.h>
149	#include <stdlib.h>	166	#include <stdlib.h>
		167	#include <string.h>
150	#include <fcntl.h>	168	#include <fcntl.h>
151	#include <stddef.h>	169	#include <stddef.h>
152		170
153	#include <stdio.h>	171	#include <stdio.h>
154		172
155	#include <assert.h>	173	#include <assert.h>
156	#include <errno.h>	174	#include <errno.h>
157	#include <sys/types.h>	175	#include <sys/types.h>
158	#include <time.h>	176	#include <time.h>
		177	#include <limits.h>
159		178
160	#include <signal.h>	179	#include <signal.h>
161		180
162	#ifdef EV_H	181	#ifdef EV_H
163	# include EV_H	182	# include EV_H
…		…
174	# define WIN32_LEAN_AND_MEAN	193	# define WIN32_LEAN_AND_MEAN
175	# include <windows.h>	194	# include <windows.h>
176	# ifndef EV_SELECT_IS_WINSOCKET	195	# ifndef EV_SELECT_IS_WINSOCKET
177	# define EV_SELECT_IS_WINSOCKET 1	196	# define EV_SELECT_IS_WINSOCKET 1
178	# endif	197	# endif
		198	# undef EV_AVOID_STDIO
179	#endif	199	#endif
		200
		201	/* OS X, in its infinite idiocy, actually HARDCODES
		202	* a limit of 1024 into their select. Where people have brains,
		203	* OS X engineers apparently have a vacuum. Or maybe they were
		204	* ordered to have a vacuum, or they do anything for money.
		205	* This might help. Or not.
		206	*/
		207	#define _DARWIN_UNLIMITED_SELECT 1
180		208
181	/* this block tries to deduce configuration from header-defined symbols and defaults */	209	/* this block tries to deduce configuration from header-defined symbols and defaults */
		210
		211	/* try to deduce the maximum number of signals on this platform */
		212	#if defined (EV_NSIG)
		213	/* use what's provided */
		214	#elif defined (NSIG)
		215	# define EV_NSIG (NSIG)
		216	#elif defined(_NSIG)
		217	# define EV_NSIG (_NSIG)
		218	#elif defined (SIGMAX)
		219	# define EV_NSIG (SIGMAX+1)
		220	#elif defined (SIG_MAX)
		221	# define EV_NSIG (SIG_MAX+1)
		222	#elif defined (_SIG_MAX)
		223	# define EV_NSIG (_SIG_MAX+1)
		224	#elif defined (MAXSIG)
		225	# define EV_NSIG (MAXSIG+1)
		226	#elif defined (MAX_SIG)
		227	# define EV_NSIG (MAX_SIG+1)
		228	#elif defined (SIGARRAYSIZE)
		229	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
		230	#elif defined (_sys_nsig)
		231	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		232	#else
		233	# error "unable to find value for NSIG, please report"
		234	/* to make it compile regardless, just remove the above line, */
		235	/* but consider reporting it, too! :) */
		236	# define EV_NSIG 65
		237	#endif
182		238
183	#ifndef EV_USE_CLOCK_SYSCALL	239	#ifndef EV_USE_CLOCK_SYSCALL
184	# if __linux && __GLIBC__ >= 2	240	# if __linux && __GLIBC__ >= 2
185	# define EV_USE_CLOCK_SYSCALL 1	241	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186	# else	242	# else
187	# define EV_USE_CLOCK_SYSCALL 0	243	# define EV_USE_CLOCK_SYSCALL 0
188	# endif	244	# endif
189	#endif	245	#endif
190		246
191	#ifndef EV_USE_MONOTONIC	247	#ifndef EV_USE_MONOTONIC
192	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	248	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193	# define EV_USE_MONOTONIC 1	249	# define EV_USE_MONOTONIC EV_FEATURE_OS
194	# else	250	# else
195	# define EV_USE_MONOTONIC 0	251	# define EV_USE_MONOTONIC 0
196	# endif	252	# endif
197	#endif	253	#endif
198		254
…		…
200	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	256	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201	#endif	257	#endif
202		258
203	#ifndef EV_USE_NANOSLEEP	259	#ifndef EV_USE_NANOSLEEP
204	# if _POSIX_C_SOURCE >= 199309L	260	# if _POSIX_C_SOURCE >= 199309L
205	# define EV_USE_NANOSLEEP 1	261	# define EV_USE_NANOSLEEP EV_FEATURE_OS
206	# else	262	# else
207	# define EV_USE_NANOSLEEP 0	263	# define EV_USE_NANOSLEEP 0
208	# endif	264	# endif
209	#endif	265	#endif
210		266
211	#ifndef EV_USE_SELECT	267	#ifndef EV_USE_SELECT
212	# define EV_USE_SELECT 1	268	# define EV_USE_SELECT EV_FEATURE_BACKENDS
213	#endif	269	#endif
214		270
215	#ifndef EV_USE_POLL	271	#ifndef EV_USE_POLL
216	# ifdef _WIN32	272	# ifdef _WIN32
217	# define EV_USE_POLL 0	273	# define EV_USE_POLL 0
218	# else	274	# else
219	# define EV_USE_POLL 1	275	# define EV_USE_POLL EV_FEATURE_BACKENDS
220	# endif	276	# endif
221	#endif	277	#endif
222		278
223	#ifndef EV_USE_EPOLL	279	#ifndef EV_USE_EPOLL
224	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	280	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225	# define EV_USE_EPOLL 1	281	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226	# else	282	# else
227	# define EV_USE_EPOLL 0	283	# define EV_USE_EPOLL 0
228	# endif	284	# endif
229	#endif	285	#endif
230		286
…		…
236	# define EV_USE_PORT 0	292	# define EV_USE_PORT 0
237	#endif	293	#endif
238		294
239	#ifndef EV_USE_INOTIFY	295	#ifndef EV_USE_INOTIFY
240	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	296	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241	# define EV_USE_INOTIFY 1	297	# define EV_USE_INOTIFY EV_FEATURE_OS
242	# else	298	# else
243	# define EV_USE_INOTIFY 0	299	# define EV_USE_INOTIFY 0
244	# endif	300	# endif
245	#endif	301	#endif
246		302
247	#ifndef EV_PID_HASHSIZE	303	#ifndef EV_PID_HASHSIZE
248	# if EV_MINIMAL	304	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249	# define EV_PID_HASHSIZE 1
250	# else
251	# define EV_PID_HASHSIZE 16
252	# endif
253	#endif	305	#endif
254		306
255	#ifndef EV_INOTIFY_HASHSIZE	307	#ifndef EV_INOTIFY_HASHSIZE
256	# if EV_MINIMAL	308	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257	# define EV_INOTIFY_HASHSIZE 1
258	# else
259	# define EV_INOTIFY_HASHSIZE 16
260	# endif
261	#endif	309	#endif
262		310
263	#ifndef EV_USE_EVENTFD	311	#ifndef EV_USE_EVENTFD
264	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	312	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265	# define EV_USE_EVENTFD 1	313	# define EV_USE_EVENTFD EV_FEATURE_OS
266	# else	314	# else
267	# define EV_USE_EVENTFD 0	315	# define EV_USE_EVENTFD 0
		316	# endif
		317	#endif
		318
		319	#ifndef EV_USE_SIGNALFD
		320	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		321	# define EV_USE_SIGNALFD EV_FEATURE_OS
		322	# else
		323	# define EV_USE_SIGNALFD 0
268	# endif	324	# endif
269	#endif	325	#endif
270		326
271	#if 0 /* debugging */	327	#if 0 /* debugging */
272	# define EV_VERIFY 3	328	# define EV_VERIFY 3
273	# define EV_USE_4HEAP 1	329	# define EV_USE_4HEAP 1
274	# define EV_HEAP_CACHE_AT 1	330	# define EV_HEAP_CACHE_AT 1
275	#endif	331	#endif
276		332
277	#ifndef EV_VERIFY	333	#ifndef EV_VERIFY
278	# define EV_VERIFY !EV_MINIMAL	334	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279	#endif	335	#endif
280		336
281	#ifndef EV_USE_4HEAP	337	#ifndef EV_USE_4HEAP
282	# define EV_USE_4HEAP !EV_MINIMAL	338	# define EV_USE_4HEAP EV_FEATURE_DATA
283	#endif	339	#endif
284		340
285	#ifndef EV_HEAP_CACHE_AT	341	#ifndef EV_HEAP_CACHE_AT
286	# define EV_HEAP_CACHE_AT !EV_MINIMAL	342	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287	#endif	343	#endif
288		344
289	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	345	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290	/* which makes programs even slower. might work on other unices, too. */	346	/* which makes programs even slower. might work on other unices, too. */
291	#if EV_USE_CLOCK_SYSCALL	347	#if EV_USE_CLOCK_SYSCALL
…		…
300	# endif	356	# endif
301	#endif	357	#endif
302		358
303	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	359	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304		360
		361	#ifdef _AIX
		362	/* AIX has a completely broken poll.h header */
		363	# undef EV_USE_POLL
		364	# define EV_USE_POLL 0
		365	#endif
		366
305	#ifndef CLOCK_MONOTONIC	367	#ifndef CLOCK_MONOTONIC
306	# undef EV_USE_MONOTONIC	368	# undef EV_USE_MONOTONIC
307	# define EV_USE_MONOTONIC 0	369	# define EV_USE_MONOTONIC 0
308	#endif	370	#endif
309		371
…		…
339	#endif	401	#endif
340		402
341	#if EV_USE_EVENTFD	403	#if EV_USE_EVENTFD
342	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	404	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343	# include <stdint.h>	405	# include <stdint.h>
		406	# ifndef EFD_NONBLOCK
		407	# define EFD_NONBLOCK O_NONBLOCK
		408	# endif
		409	# ifndef EFD_CLOEXEC
		410	# ifdef O_CLOEXEC
		411	# define EFD_CLOEXEC O_CLOEXEC
		412	# else
		413	# define EFD_CLOEXEC 02000000
		414	# endif
		415	# endif
344	# ifdef __cplusplus	416	# ifdef __cplusplus
345	extern "C" {	417	extern "C" {
346	# endif	418	# endif
347	int eventfd (unsigned int initval, int flags);	419	int (eventfd) (unsigned int initval, int flags);
348	# ifdef __cplusplus	420	# ifdef __cplusplus
349	}	421	}
350	# endif	422	# endif
351	#endif	423	#endif
352		424
		425	#if EV_USE_SIGNALFD
		426	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		427	# include <stdint.h>
		428	# ifndef SFD_NONBLOCK
		429	# define SFD_NONBLOCK O_NONBLOCK
		430	# endif
		431	# ifndef SFD_CLOEXEC
		432	# ifdef O_CLOEXEC
		433	# define SFD_CLOEXEC O_CLOEXEC
		434	# else
		435	# define SFD_CLOEXEC 02000000
		436	# endif
		437	# endif
		438	# ifdef __cplusplus
		439	extern "C" {
		440	# endif
		441	int signalfd (int fd, const sigset_t *mask, int flags);
		442
		443	struct signalfd_siginfo
		444	{
		445	uint32_t ssi_signo;
		446	char pad[128 - sizeof (uint32_t)];
		447	};
		448	# ifdef __cplusplus
		449	}
		450	# endif
		451	#endif
		452
		453
353	/**/	454	/**/
354		455
355	#if EV_VERIFY >= 3	456	#if EV_VERIFY >= 3
356	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	457	# define EV_FREQUENT_CHECK ev_verify (EV_A)
357	#else	458	#else
358	# define EV_FREQUENT_CHECK do { } while (0)	459	# define EV_FREQUENT_CHECK do { } while (0)
359	#endif	460	#endif
360		461
361	/*	462	/*
…		…
368	*/	469	*/
369	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	470	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
370		471
371	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	472	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
372	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	473	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
373	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
374		474
375	#if __GNUC__ >= 4	475	#if __GNUC__ >= 4
376	# define expect(expr,value) __builtin_expect ((expr),(value))	476	# define expect(expr,value) __builtin_expect ((expr),(value))
377	# define noinline __attribute__ ((noinline))	477	# define noinline __attribute__ ((noinline))
378	#else	478	#else
…		…
385		485
386	#define expect_false(expr) expect ((expr) != 0, 0)	486	#define expect_false(expr) expect ((expr) != 0, 0)
387	#define expect_true(expr) expect ((expr) != 0, 1)	487	#define expect_true(expr) expect ((expr) != 0, 1)
388	#define inline_size static inline	488	#define inline_size static inline
389		489
390	#if EV_MINIMAL	490	#if EV_FEATURE_CODE
		491	# define inline_speed static inline
		492	#else
391	# define inline_speed static noinline	493	# define inline_speed static noinline
392	#else
393	# define inline_speed static inline
394	#endif	494	#endif
395		495
396	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	496	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397		497
398	#if EV_MINPRI == EV_MAXPRI	498	#if EV_MINPRI == EV_MAXPRI
…		…
419		519
420	#if EV_USE_MONOTONIC	520	#if EV_USE_MONOTONIC
421	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	521	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422	#endif	522	#endif
423		523
		524	#ifndef EV_FD_TO_WIN32_HANDLE
		525	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		526	#endif
		527	#ifndef EV_WIN32_HANDLE_TO_FD
		528	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		529	#endif
		530	#ifndef EV_WIN32_CLOSE_FD
		531	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		532	#endif
		533
424	#ifdef _WIN32	534	#ifdef _WIN32
425	# include "ev_win32.c"	535	# include "ev_win32.c"
426	#endif	536	#endif
427		537
428	/*****************************************************************************/	538	/*****************************************************************************/
		539
		540	#if EV_AVOID_STDIO
		541	static void noinline
		542	ev_printerr (const char *msg)
		543	{
		544	write (STDERR_FILENO, msg, strlen (msg));
		545	}
		546	#endif
429		547
430	static void (*syserr_cb)(const char *msg);	548	static void (*syserr_cb)(const char *msg);
431		549
432	void	550	void
433	ev_set_syserr_cb (void (*cb)(const char *msg))	551	ev_set_syserr_cb (void (*cb)(const char *msg))
…		…
443		561
444	if (syserr_cb)	562	if (syserr_cb)
445	syserr_cb (msg);	563	syserr_cb (msg);
446	else	564	else
447	{	565	{
		566	#if EV_AVOID_STDIO
		567	const char *err = strerror (errno);
		568
		569	ev_printerr (msg);
		570	ev_printerr (": ");
		571	ev_printerr (err);
		572	ev_printerr ("\n");
		573	#else
448	perror (msg);	574	perror (msg);
		575	#endif
449	abort ();	576	abort ();
450	}	577	}
451	}	578	}
452		579
453	static void *	580	static void *
454	ev_realloc_emul (void *ptr, long size)	581	ev_realloc_emul (void *ptr, long size)
455	{	582	{
		583	#if __GLIBC__
		584	return realloc (ptr, size);
		585	#else
456	/* some systems, notably openbsd and darwin, fail to properly	586	/* some systems, notably openbsd and darwin, fail to properly
457	* implement realloc (x, 0) (as required by both ansi c-98 and	587	* implement realloc (x, 0) (as required by both ansi c-89 and
458	* the single unix specification, so work around them here.	588	* the single unix specification, so work around them here.
459	*/	589	*/
460		590
461	if (size)	591	if (size)
462	return realloc (ptr, size);	592	return realloc (ptr, size);
463		593
464	free (ptr);	594	free (ptr);
465	return 0;	595	return 0;
		596	#endif
466	}	597	}
467		598
468	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	599	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
469		600
470	void	601	void
…		…
478	{	609	{
479	ptr = alloc (ptr, size);	610	ptr = alloc (ptr, size);
480		611
481	if (!ptr && size)	612	if (!ptr && size)
482	{	613	{
		614	#if EV_AVOID_STDIO
		615	ev_printerr ("libev: memory allocation failed, aborting.\n");
		616	#else
483	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	617	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		618	#endif
484	abort ();	619	abort ();
485	}	620	}
486		621
487	return ptr;	622	return ptr;
488	}	623	}
…		…
570		705
571	static int ev_default_loop_ptr;	706	static int ev_default_loop_ptr;
572		707
573	#endif	708	#endif
574		709
575	#if EV_MINIMAL < 2	710	#if EV_FEATURE_API
576	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	711	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
577	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	712	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
578	# define EV_INVOKE_PENDING invoke_cb (EV_A)	713	# define EV_INVOKE_PENDING invoke_cb (EV_A)
579	#else	714	#else
580	# define EV_RELEASE_CB (void)0	715	# define EV_RELEASE_CB (void)0
…		…
647		782
648	tv.tv_sec = (time_t)delay;	783	tv.tv_sec = (time_t)delay;
649	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	784	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
650		785
651	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	786	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
652	/* somehting not guaranteed by newer posix versions, but guaranteed */	787	/* something not guaranteed by newer posix versions, but guaranteed */
653	/* by older ones */	788	/* by older ones */
654	select (0, 0, 0, 0, &tv);	789	select (0, 0, 0, 0, &tv);
655	#endif	790	#endif
656	}	791	}
657	}	792	}
…		…
765	}	900	}
766		901
767	/*****************************************************************************/	902	/*****************************************************************************/
768		903
769	inline_speed void	904	inline_speed void
770	fd_event_nc (EV_P_ int fd, int revents)	905	fd_event_nocheck (EV_P_ int fd, int revents)
771	{	906	{
772	ANFD *anfd = anfds + fd;	907	ANFD *anfd = anfds + fd;
773	ev_io *w;	908	ev_io *w;
774		909
775	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	910	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
787	fd_event (EV_P_ int fd, int revents)	922	fd_event (EV_P_ int fd, int revents)
788	{	923	{
789	ANFD *anfd = anfds + fd;	924	ANFD *anfd = anfds + fd;
790		925
791	if (expect_true (!anfd->reify))	926	if (expect_true (!anfd->reify))
792	fd_event_nc (EV_A_ fd, revents);	927	fd_event_nocheck (EV_A_ fd, revents);
793	}	928	}
794		929
795	void	930	void
796	ev_feed_fd_event (EV_P_ int fd, int revents)	931	ev_feed_fd_event (EV_P_ int fd, int revents)
797	{	932	{
798	if (fd >= 0 && fd < anfdmax)	933	if (fd >= 0 && fd < anfdmax)
799	fd_event_nc (EV_A_ fd, revents);	934	fd_event_nocheck (EV_A_ fd, revents);
800	}	935	}
801		936
802	/* make sure the external fd watch events are in-sync */	937	/* make sure the external fd watch events are in-sync */
803	/* with the kernel/libev internal state */	938	/* with the kernel/libev internal state */
804	inline_size void	939	inline_size void
…		…
819		954
820	#if EV_SELECT_IS_WINSOCKET	955	#if EV_SELECT_IS_WINSOCKET
821	if (events)	956	if (events)
822	{	957	{
823	unsigned long arg;	958	unsigned long arg;
824	#ifdef EV_FD_TO_WIN32_HANDLE
825	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	959	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
826	#else
827	anfd->handle = _get_osfhandle (fd);
828	#endif
829	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	960	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
830	}	961	}
831	#endif	962	#endif
832		963
833	{	964	{
…		…
871	ev_io_stop (EV_A_ w);	1002	ev_io_stop (EV_A_ w);
872	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1003	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
873	}	1004	}
874	}	1005	}
875		1006
876	/* check whether the given fd is atcually valid, for error recovery */	1007	/* check whether the given fd is actually valid, for error recovery */
877	inline_size int	1008	inline_size int
878	fd_valid (int fd)	1009	fd_valid (int fd)
879	{	1010	{
880	#ifdef _WIN32	1011	#ifdef _WIN32
881	return _get_osfhandle (fd) != -1;	1012	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
882	#else	1013	#else
883	return fcntl (fd, F_GETFD) != -1;	1014	return fcntl (fd, F_GETFD) != -1;
884	#endif	1015	#endif
885	}	1016	}
886		1017
…		…
904		1035
905	for (fd = anfdmax; fd--; )	1036	for (fd = anfdmax; fd--; )
906	if (anfds [fd].events)	1037	if (anfds [fd].events)
907	{	1038	{
908	fd_kill (EV_A_ fd);	1039	fd_kill (EV_A_ fd);
909	return;	1040	break;
910	}	1041	}
911	}	1042	}
912		1043
913	/* usually called after fork if backend needs to re-arm all fds from scratch */	1044	/* usually called after fork if backend needs to re-arm all fds from scratch */
914	static void noinline	1045	static void noinline
…		…
921	{	1052	{
922	anfds [fd].events = 0;	1053	anfds [fd].events = 0;
923	anfds [fd].emask = 0;	1054	anfds [fd].emask = 0;
924	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);	1055	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
925	}	1056	}
		1057	}
		1058
		1059	/* used to prepare libev internal fd's */
		1060	/* this is not fork-safe */
		1061	inline_speed void
		1062	fd_intern (int fd)
		1063	{
		1064	#ifdef _WIN32
		1065	unsigned long arg = 1;
		1066	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1067	#else
		1068	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1069	fcntl (fd, F_SETFL, O_NONBLOCK);
		1070	#endif
926	}	1071	}
927		1072
928	/*****************************************************************************/	1073	/*****************************************************************************/
929		1074
930	/*	1075	/*
…		…
1004		1149
1005	for (;;)	1150	for (;;)
1006	{	1151	{
1007	int c = k << 1;	1152	int c = k << 1;
1008		1153
1009	if (c > N + HEAP0 - 1)	1154	if (c >= N + HEAP0)
1010	break;	1155	break;
1011		1156
1012	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1157	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1013	? 1 : 0;	1158	? 1 : 0;
1014		1159
…		…
1050		1195
1051	/* move an element suitably so it is in a correct place */	1196	/* move an element suitably so it is in a correct place */
1052	inline_size void	1197	inline_size void
1053	adjustheap (ANHE *heap, int N, int k)	1198	adjustheap (ANHE *heap, int N, int k)
1054	{	1199	{
1055	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1200	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1056	upheap (heap, k);	1201	upheap (heap, k);
1057	else	1202	else
1058	downheap (heap, N, k);	1203	downheap (heap, N, k);
1059	}	1204	}
1060		1205
…		…
1073	/*****************************************************************************/	1218	/*****************************************************************************/
1074		1219
1075	/* associate signal watchers to a signal signal */	1220	/* associate signal watchers to a signal signal */
1076	typedef struct	1221	typedef struct
1077	{	1222	{
		1223	EV_ATOMIC_T pending;
		1224	#if EV_MULTIPLICITY
		1225	EV_P;
		1226	#endif
1078	WL head;	1227	WL head;
1079	EV_ATOMIC_T gotsig;
1080	} ANSIG;	1228	} ANSIG;
1081		1229
1082	static ANSIG *signals;	1230	static ANSIG signals [EV_NSIG - 1];
1083	static int signalmax;
1084
1085	static EV_ATOMIC_T gotsig;
1086		1231
1087	/*****************************************************************************/	1232	/*****************************************************************************/
1088		1233
1089	/* used to prepare libev internal fd's */	1234	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1090	/* this is not fork-safe */
1091	inline_speed void
1092	fd_intern (int fd)
1093	{
1094	#ifdef _WIN32
1095	unsigned long arg = 1;
1096	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1097	#else
1098	fcntl (fd, F_SETFD, FD_CLOEXEC);
1099	fcntl (fd, F_SETFL, O_NONBLOCK);
1100	#endif
1101	}
1102		1235
1103	static void noinline	1236	static void noinline
1104	evpipe_init (EV_P)	1237	evpipe_init (EV_P)
1105	{	1238	{
1106	if (!ev_is_active (&pipe_w))	1239	if (!ev_is_active (&pipe_w))
1107	{	1240	{
1108	#if EV_USE_EVENTFD	1241	# if EV_USE_EVENTFD
		1242	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1243	if (evfd < 0 && errno == EINVAL)
1109	if ((evfd = eventfd (0, 0)) >= 0)	1244	evfd = eventfd (0, 0);
		1245
		1246	if (evfd >= 0)
1110	{	1247	{
1111	evpipe [0] = -1;	1248	evpipe [0] = -1;
1112	fd_intern (evfd);	1249	fd_intern (evfd); /* doing it twice doesn't hurt */
1113	ev_io_set (&pipe_w, evfd, EV_READ);	1250	ev_io_set (&pipe_w, evfd, EV_READ);
1114	}	1251	}
1115	else	1252	else
1116	#endif	1253	# endif
1117	{	1254	{
1118	while (pipe (evpipe))	1255	while (pipe (evpipe))
1119	ev_syserr ("(libev) error creating signal/async pipe");	1256	ev_syserr ("(libev) error creating signal/async pipe");
1120		1257
1121	fd_intern (evpipe [0]);	1258	fd_intern (evpipe [0]);
…		…
1132	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1269	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1133	{	1270	{
1134	if (!*flag)	1271	if (!*flag)
1135	{	1272	{
1136	int old_errno = errno; /* save errno because write might clobber it */	1273	int old_errno = errno; /* save errno because write might clobber it */
		1274	char dummy;
1137		1275
1138	*flag = 1;	1276	*flag = 1;
1139		1277
1140	#if EV_USE_EVENTFD	1278	#if EV_USE_EVENTFD
1141	if (evfd >= 0)	1279	if (evfd >= 0)
…		…
1143	uint64_t counter = 1;	1281	uint64_t counter = 1;
1144	write (evfd, &counter, sizeof (uint64_t));	1282	write (evfd, &counter, sizeof (uint64_t));
1145	}	1283	}
1146	else	1284	else
1147	#endif	1285	#endif
1148	write (evpipe [1], &old_errno, 1);	1286	write (evpipe [1], &dummy, 1);
1149		1287
1150	errno = old_errno;	1288	errno = old_errno;
1151	}	1289	}
1152	}	1290	}
1153		1291
1154	/* called whenever the libev signal pipe */	1292	/* called whenever the libev signal pipe */
1155	/* got some events (signal, async) */	1293	/* got some events (signal, async) */
1156	static void	1294	static void
1157	pipecb (EV_P_ ev_io *iow, int revents)	1295	pipecb (EV_P_ ev_io *iow, int revents)
1158	{	1296	{
		1297	int i;
		1298
1159	#if EV_USE_EVENTFD	1299	#if EV_USE_EVENTFD
1160	if (evfd >= 0)	1300	if (evfd >= 0)
1161	{	1301	{
1162	uint64_t counter;	1302	uint64_t counter;
1163	read (evfd, &counter, sizeof (uint64_t));	1303	read (evfd, &counter, sizeof (uint64_t));
…		…
1167	{	1307	{
1168	char dummy;	1308	char dummy;
1169	read (evpipe [0], &dummy, 1);	1309	read (evpipe [0], &dummy, 1);
1170	}	1310	}
1171		1311
1172	if (gotsig && ev_is_default_loop (EV_A))	1312	if (sig_pending)
1173	{	1313	{
1174	int signum;	1314	sig_pending = 0;
1175	gotsig = 0;
1176		1315
1177	for (signum = signalmax; signum--; )	1316	for (i = EV_NSIG - 1; i--; )
1178	if (signals [signum].gotsig)	1317	if (expect_false (signals [i].pending))
1179	ev_feed_signal_event (EV_A_ signum + 1);	1318	ev_feed_signal_event (EV_A_ i + 1);
1180	}	1319	}
1181		1320
1182	#if EV_ASYNC_ENABLE	1321	#if EV_ASYNC_ENABLE
1183	if (gotasync)	1322	if (async_pending)
1184	{	1323	{
1185	int i;	1324	async_pending = 0;
1186	gotasync = 0;
1187		1325
1188	for (i = asynccnt; i--; )	1326	for (i = asynccnt; i--; )
1189	if (asyncs [i]->sent)	1327	if (asyncs [i]->sent)
1190	{	1328	{
1191	asyncs [i]->sent = 0;	1329	asyncs [i]->sent = 0;
…		…
1199		1337
1200	static void	1338	static void
1201	ev_sighandler (int signum)	1339	ev_sighandler (int signum)
1202	{	1340	{
1203	#if EV_MULTIPLICITY	1341	#if EV_MULTIPLICITY
1204	struct ev_loop *loop = &default_loop_struct;	1342	EV_P = signals [signum - 1].loop;
1205	#endif	1343	#endif
1206		1344
1207	#if _WIN32	1345	#ifdef _WIN32
1208	signal (signum, ev_sighandler);	1346	signal (signum, ev_sighandler);
1209	#endif	1347	#endif
1210		1348
1211	signals [signum - 1].gotsig = 1;	1349	signals [signum - 1].pending = 1;
1212	evpipe_write (EV_A_ &gotsig);	1350	evpipe_write (EV_A_ &sig_pending);
1213	}	1351	}
1214		1352
1215	void noinline	1353	void noinline
1216	ev_feed_signal_event (EV_P_ int signum)	1354	ev_feed_signal_event (EV_P_ int signum)
1217	{	1355	{
1218	WL w;	1356	WL w;
1219		1357
		1358	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1359	return;
		1360
		1361	--signum;
		1362
1220	#if EV_MULTIPLICITY	1363	#if EV_MULTIPLICITY
1221	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1364	/* it is permissible to try to feed a signal to the wrong loop */
1222	#endif	1365	/* or, likely more useful, feeding a signal nobody is waiting for */
1223		1366
1224	--signum;	1367	if (expect_false (signals [signum].loop != EV_A))
1225
1226	if (signum < 0 || signum >= signalmax)
1227	return;	1368	return;
		1369	#endif
1228		1370
1229	signals [signum].gotsig = 0;	1371	signals [signum].pending = 0;
1230		1372
1231	for (w = signals [signum].head; w; w = w->next)	1373	for (w = signals [signum].head; w; w = w->next)
1232	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1374	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1233	}	1375	}
1234		1376
		1377	#if EV_USE_SIGNALFD
		1378	static void
		1379	sigfdcb (EV_P_ ev_io *iow, int revents)
		1380	{
		1381	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1382
		1383	for (;;)
		1384	{
		1385	ssize_t res = read (sigfd, si, sizeof (si));
		1386
		1387	/* not ISO-C, as res might be -1, but works with SuS */
		1388	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1389	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1390
		1391	if (res < (ssize_t)sizeof (si))
		1392	break;
		1393	}
		1394	}
		1395	#endif
		1396
		1397	#endif
		1398
1235	/*****************************************************************************/	1399	/*****************************************************************************/
1236		1400
		1401	#if EV_CHILD_ENABLE
1237	static WL childs [EV_PID_HASHSIZE];	1402	static WL childs [EV_PID_HASHSIZE];
1238
1239	#ifndef _WIN32
1240		1403
1241	static ev_signal childev;	1404	static ev_signal childev;
1242		1405
1243	#ifndef WIFCONTINUED	1406	#ifndef WIFCONTINUED
1244	# define WIFCONTINUED(status) 0	1407	# define WIFCONTINUED(status) 0
…		…
1249	child_reap (EV_P_ int chain, int pid, int status)	1412	child_reap (EV_P_ int chain, int pid, int status)
1250	{	1413	{
1251	ev_child *w;	1414	ev_child *w;
1252	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1415	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1253		1416
1254	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1417	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1255	{	1418	{
1256	if ((w->pid == pid || !w->pid)	1419	if ((w->pid == pid || !w->pid)
1257	&& (!traced || (w->flags & 1)))	1420	&& (!traced || (w->flags & 1)))
1258	{	1421	{
1259	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1422	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
…		…
1284	/* make sure we are called again until all children have been reaped */	1447	/* make sure we are called again until all children have been reaped */
1285	/* we need to do it this way so that the callback gets called before we continue */	1448	/* we need to do it this way so that the callback gets called before we continue */
1286	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1449	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1287		1450
1288	child_reap (EV_A_ pid, pid, status);	1451	child_reap (EV_A_ pid, pid, status);
1289	if (EV_PID_HASHSIZE > 1)	1452	if ((EV_PID_HASHSIZE) > 1)
1290	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1453	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1291	}	1454	}
1292		1455
1293	#endif	1456	#endif
1294		1457
…		…
1361	#ifdef __APPLE__	1524	#ifdef __APPLE__
1362	/* only select works correctly on that "unix-certified" platform */	1525	/* only select works correctly on that "unix-certified" platform */
1363	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1526	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1364	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1527	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1365	#endif	1528	#endif
		1529	#ifdef __FreeBSD__
		1530	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1531	#endif
1366		1532
1367	return flags;	1533	return flags;
1368	}	1534	}
1369		1535
1370	unsigned int	1536	unsigned int
…		…
1383	ev_backend (EV_P)	1549	ev_backend (EV_P)
1384	{	1550	{
1385	return backend;	1551	return backend;
1386	}	1552	}
1387		1553
1388	#if EV_MINIMAL < 2	1554	#if EV_FEATURE_API
1389	unsigned int	1555	unsigned int
1390	ev_loop_count (EV_P)	1556	ev_iteration (EV_P)
1391	{	1557	{
1392	return loop_count;	1558	return loop_count;
1393	}	1559	}
1394		1560
1395	unsigned int	1561	unsigned int
1396	ev_loop_depth (EV_P)	1562	ev_depth (EV_P)
1397	{	1563	{
1398	return loop_depth;	1564	return loop_depth;
1399	}	1565	}
1400		1566
1401	void	1567	void
…		…
1458	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1624	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1459	have_monotonic = 1;	1625	have_monotonic = 1;
1460	}	1626	}
1461	#endif	1627	#endif
1462		1628
		1629	/* pid check not overridable via env */
		1630	#ifndef _WIN32
		1631	if (flags & EVFLAG_FORKCHECK)
		1632	curpid = getpid ();
		1633	#endif
		1634
		1635	if (!(flags & EVFLAG_NOENV)
		1636	&& !enable_secure ()
		1637	&& getenv ("LIBEV_FLAGS"))
		1638	flags = atoi (getenv ("LIBEV_FLAGS"));
		1639
1463	ev_rt_now = ev_time ();	1640	ev_rt_now = ev_time ();
1464	mn_now = get_clock ();	1641	mn_now = get_clock ();
1465	now_floor = mn_now;	1642	now_floor = mn_now;
1466	rtmn_diff = ev_rt_now - mn_now;	1643	rtmn_diff = ev_rt_now - mn_now;
1467	#if EV_MINIMAL < 2	1644	#if EV_FEATURE_API
1468	invoke_cb = ev_invoke_pending;	1645	invoke_cb = ev_invoke_pending;
1469	#endif	1646	#endif
1470		1647
1471	io_blocktime = 0.;	1648	io_blocktime = 0.;
1472	timeout_blocktime = 0.;	1649	timeout_blocktime = 0.;
1473	backend = 0;	1650	backend = 0;
1474	backend_fd = -1;	1651	backend_fd = -1;
1475	gotasync = 0;	1652	sig_pending = 0;
		1653	#if EV_ASYNC_ENABLE
		1654	async_pending = 0;
		1655	#endif
1476	#if EV_USE_INOTIFY	1656	#if EV_USE_INOTIFY
1477	fs_fd = -2;	1657	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1478	#endif	1658	#endif
1479		1659	#if EV_USE_SIGNALFD
1480	/* pid check not overridable via env */	1660	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1481	#ifndef _WIN32
1482	if (flags & EVFLAG_FORKCHECK)
1483	curpid = getpid ();
1484	#endif	1661	#endif
1485
1486	if (!(flags & EVFLAG_NOENV)
1487	&& !enable_secure ()
1488	&& getenv ("LIBEV_FLAGS"))
1489	flags = atoi (getenv ("LIBEV_FLAGS"));
1490		1662
1491	if (!(flags & 0x0000ffffU))	1663	if (!(flags & 0x0000ffffU))
1492	flags |= ev_recommended_backends ();	1664	flags |= ev_recommended_backends ();
1493		1665
1494	#if EV_USE_PORT	1666	#if EV_USE_PORT
…		…
1507	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1679	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1508	#endif	1680	#endif
1509		1681
1510	ev_prepare_init (&pending_w, pendingcb);	1682	ev_prepare_init (&pending_w, pendingcb);
1511		1683
		1684	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1512	ev_init (&pipe_w, pipecb);	1685	ev_init (&pipe_w, pipecb);
1513	ev_set_priority (&pipe_w, EV_MAXPRI);	1686	ev_set_priority (&pipe_w, EV_MAXPRI);
		1687	#endif
1514	}	1688	}
1515	}	1689	}
1516		1690
1517	/* free up a loop structure */	1691	/* free up a loop structure */
1518	static void noinline	1692	static void noinline
…		…
1520	{	1694	{
1521	int i;	1695	int i;
1522		1696
1523	if (ev_is_active (&pipe_w))	1697	if (ev_is_active (&pipe_w))
1524	{	1698	{
1525	ev_ref (EV_A); /* signal watcher */	1699	/*ev_ref (EV_A);*/
1526	ev_io_stop (EV_A_ &pipe_w);	1700	/*ev_io_stop (EV_A_ &pipe_w);*/
1527		1701
1528	#if EV_USE_EVENTFD	1702	#if EV_USE_EVENTFD
1529	if (evfd >= 0)	1703	if (evfd >= 0)
1530	close (evfd);	1704	close (evfd);
1531	#endif	1705	#endif
1532		1706
1533	if (evpipe [0] >= 0)	1707	if (evpipe [0] >= 0)
1534	{	1708	{
1535	close (evpipe [0]);	1709	EV_WIN32_CLOSE_FD (evpipe [0]);
1536	close (evpipe [1]);	1710	EV_WIN32_CLOSE_FD (evpipe [1]);
1537	}	1711	}
1538	}	1712	}
		1713
		1714	#if EV_USE_SIGNALFD
		1715	if (ev_is_active (&sigfd_w))
		1716	close (sigfd);
		1717	#endif
1539		1718
1540	#if EV_USE_INOTIFY	1719	#if EV_USE_INOTIFY
1541	if (fs_fd >= 0)	1720	if (fs_fd >= 0)
1542	close (fs_fd);	1721	close (fs_fd);
1543	#endif	1722	#endif
…		…
1567	#if EV_IDLE_ENABLE	1746	#if EV_IDLE_ENABLE
1568	array_free (idle, [i]);	1747	array_free (idle, [i]);
1569	#endif	1748	#endif
1570	}	1749	}
1571		1750
1572	ev_free (anfds); anfdmax = 0;	1751	ev_free (anfds); anfds = 0; anfdmax = 0;
1573		1752
1574	/* have to use the microsoft-never-gets-it-right macro */	1753	/* have to use the microsoft-never-gets-it-right macro */
1575	array_free (rfeed, EMPTY);	1754	array_free (rfeed, EMPTY);
1576	array_free (fdchange, EMPTY);	1755	array_free (fdchange, EMPTY);
1577	array_free (timer, EMPTY);	1756	array_free (timer, EMPTY);
…		…
1612		1791
1613	if (ev_is_active (&pipe_w))	1792	if (ev_is_active (&pipe_w))
1614	{	1793	{
1615	/* this "locks" the handlers against writing to the pipe */	1794	/* this "locks" the handlers against writing to the pipe */
1616	/* while we modify the fd vars */	1795	/* while we modify the fd vars */
1617	gotsig = 1;	1796	sig_pending = 1;
1618	#if EV_ASYNC_ENABLE	1797	#if EV_ASYNC_ENABLE
1619	gotasync = 1;	1798	async_pending = 1;
1620	#endif	1799	#endif
1621		1800
1622	ev_ref (EV_A);	1801	ev_ref (EV_A);
1623	ev_io_stop (EV_A_ &pipe_w);	1802	ev_io_stop (EV_A_ &pipe_w);
1624		1803
…		…
1627	close (evfd);	1806	close (evfd);
1628	#endif	1807	#endif
1629		1808
1630	if (evpipe [0] >= 0)	1809	if (evpipe [0] >= 0)
1631	{	1810	{
1632	close (evpipe [0]);	1811	EV_WIN32_CLOSE_FD (evpipe [0]);
1633	close (evpipe [1]);	1812	EV_WIN32_CLOSE_FD (evpipe [1]);
1634	}	1813	}
1635		1814
		1815	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1636	evpipe_init (EV_A);	1816	evpipe_init (EV_A);
1637	/* now iterate over everything, in case we missed something */	1817	/* now iterate over everything, in case we missed something */
1638	pipecb (EV_A_ &pipe_w, EV_READ);	1818	pipecb (EV_A_ &pipe_w, EV_READ);
		1819	#endif
1639	}	1820	}
1640		1821
1641	postfork = 0;	1822	postfork = 0;
1642	}	1823	}
1643		1824
1644	#if EV_MULTIPLICITY	1825	#if EV_MULTIPLICITY
1645		1826
1646	struct ev_loop *	1827	struct ev_loop *
1647	ev_loop_new (unsigned int flags)	1828	ev_loop_new (unsigned int flags)
1648	{	1829	{
1649	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1830	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1650		1831
1651	memset (loop, 0, sizeof (struct ev_loop));	1832	memset (EV_A, 0, sizeof (struct ev_loop));
1652
1653	loop_init (EV_A_ flags);	1833	loop_init (EV_A_ flags);
1654		1834
1655	if (ev_backend (EV_A))	1835	if (ev_backend (EV_A))
1656	return loop;	1836	return EV_A;
1657		1837
1658	return 0;	1838	return 0;
1659	}	1839	}
1660		1840
1661	void	1841	void
…		…
1706	verify_watcher (EV_A_ ws [cnt]);	1886	verify_watcher (EV_A_ ws [cnt]);
1707	}	1887	}
1708	}	1888	}
1709	#endif	1889	#endif
1710		1890
1711	#if EV_MINIMAL < 2	1891	#if EV_FEATURE_API
1712	void	1892	void
1713	ev_loop_verify (EV_P)	1893	ev_verify (EV_P)
1714	{	1894	{
1715	#if EV_VERIFY	1895	#if EV_VERIFY
1716	int i;	1896	int i;
1717	WL w;	1897	WL w;
1718		1898
…		…
1757	#if EV_ASYNC_ENABLE	1937	#if EV_ASYNC_ENABLE
1758	assert (asyncmax >= asynccnt);	1938	assert (asyncmax >= asynccnt);
1759	array_verify (EV_A_ (W *)asyncs, asynccnt);	1939	array_verify (EV_A_ (W *)asyncs, asynccnt);
1760	#endif	1940	#endif
1761		1941
		1942	#if EV_PREPARE_ENABLE
1762	assert (preparemax >= preparecnt);	1943	assert (preparemax >= preparecnt);
1763	array_verify (EV_A_ (W *)prepares, preparecnt);	1944	array_verify (EV_A_ (W *)prepares, preparecnt);
		1945	#endif
1764		1946
		1947	#if EV_CHECK_ENABLE
1765	assert (checkmax >= checkcnt);	1948	assert (checkmax >= checkcnt);
1766	array_verify (EV_A_ (W *)checks, checkcnt);	1949	array_verify (EV_A_ (W *)checks, checkcnt);
		1950	#endif
1767		1951
1768	# if 0	1952	# if 0
		1953	#if EV_CHILD_ENABLE
1769	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1954	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1770	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1955	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1956	#endif
1771	# endif	1957	# endif
1772	#endif	1958	#endif
1773	}	1959	}
1774	#endif	1960	#endif
1775		1961
…		…
1782	#endif	1968	#endif
1783	{	1969	{
1784	if (!ev_default_loop_ptr)	1970	if (!ev_default_loop_ptr)
1785	{	1971	{
1786	#if EV_MULTIPLICITY	1972	#if EV_MULTIPLICITY
1787	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1973	EV_P = ev_default_loop_ptr = &default_loop_struct;
1788	#else	1974	#else
1789	ev_default_loop_ptr = 1;	1975	ev_default_loop_ptr = 1;
1790	#endif	1976	#endif
1791		1977
1792	loop_init (EV_A_ flags);	1978	loop_init (EV_A_ flags);
1793		1979
1794	if (ev_backend (EV_A))	1980	if (ev_backend (EV_A))
1795	{	1981	{
1796	#ifndef _WIN32	1982	#if EV_CHILD_ENABLE
1797	ev_signal_init (&childev, childcb, SIGCHLD);	1983	ev_signal_init (&childev, childcb, SIGCHLD);
1798	ev_set_priority (&childev, EV_MAXPRI);	1984	ev_set_priority (&childev, EV_MAXPRI);
1799	ev_signal_start (EV_A_ &childev);	1985	ev_signal_start (EV_A_ &childev);
1800	ev_unref (EV_A); /* child watcher should not keep loop alive */	1986	ev_unref (EV_A); /* child watcher should not keep loop alive */
1801	#endif	1987	#endif
…		…
1809		1995
1810	void	1996	void
1811	ev_default_destroy (void)	1997	ev_default_destroy (void)
1812	{	1998	{
1813	#if EV_MULTIPLICITY	1999	#if EV_MULTIPLICITY
1814	struct ev_loop *loop = ev_default_loop_ptr;	2000	EV_P = ev_default_loop_ptr;
1815	#endif	2001	#endif
1816		2002
1817	ev_default_loop_ptr = 0;	2003	ev_default_loop_ptr = 0;
1818		2004
1819	#ifndef _WIN32	2005	#if EV_CHILD_ENABLE
1820	ev_ref (EV_A); /* child watcher */	2006	ev_ref (EV_A); /* child watcher */
1821	ev_signal_stop (EV_A_ &childev);	2007	ev_signal_stop (EV_A_ &childev);
1822	#endif	2008	#endif
1823		2009
1824	loop_destroy (EV_A);	2010	loop_destroy (EV_A);
…		…
1826		2012
1827	void	2013	void
1828	ev_default_fork (void)	2014	ev_default_fork (void)
1829	{	2015	{
1830	#if EV_MULTIPLICITY	2016	#if EV_MULTIPLICITY
1831	struct ev_loop *loop = ev_default_loop_ptr;	2017	EV_P = ev_default_loop_ptr;
1832	#endif	2018	#endif
1833		2019
1834	postfork = 1; /* must be in line with ev_loop_fork */	2020	postfork = 1; /* must be in line with ev_loop_fork */
1835	}	2021	}
1836		2022
…		…
1930	EV_FREQUENT_CHECK;	2116	EV_FREQUENT_CHECK;
1931	feed_reverse (EV_A_ (W)w);	2117	feed_reverse (EV_A_ (W)w);
1932	}	2118	}
1933	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2119	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1934		2120
1935	feed_reverse_done (EV_A_ EV_TIMEOUT);	2121	feed_reverse_done (EV_A_ EV_TIMER);
1936	}	2122	}
1937	}	2123	}
1938		2124
1939	#if EV_PERIODIC_ENABLE	2125	#if EV_PERIODIC_ENABLE
1940	/* make periodics pending */	2126	/* make periodics pending */
…		…
2031	ANHE_at_cache (*he);	2217	ANHE_at_cache (*he);
2032	}	2218	}
2033	}	2219	}
2034		2220
2035	/* fetch new monotonic and realtime times from the kernel */	2221	/* fetch new monotonic and realtime times from the kernel */
2036	/* also detetc if there was a timejump, and act accordingly */	2222	/* also detect if there was a timejump, and act accordingly */
2037	inline_speed void	2223	inline_speed void
2038	time_update (EV_P_ ev_tstamp max_block)	2224	time_update (EV_P_ ev_tstamp max_block)
2039	{	2225	{
2040	#if EV_USE_MONOTONIC	2226	#if EV_USE_MONOTONIC
2041	if (expect_true (have_monotonic))	2227	if (expect_true (have_monotonic))
…		…
2101	}	2287	}
2102		2288
2103	void	2289	void
2104	ev_loop (EV_P_ int flags)	2290	ev_loop (EV_P_ int flags)
2105	{	2291	{
2106	#if EV_MINIMAL < 2	2292	#if EV_FEATURE_API
2107	++loop_depth;	2293	++loop_depth;
2108	#endif	2294	#endif
2109		2295
2110	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2296	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2111		2297
…		…
2114	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2300	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2115		2301
2116	do	2302	do
2117	{	2303	{
2118	#if EV_VERIFY >= 2	2304	#if EV_VERIFY >= 2
2119	ev_loop_verify (EV_A);	2305	ev_verify (EV_A);
2120	#endif	2306	#endif
2121		2307
2122	#ifndef _WIN32	2308	#ifndef _WIN32
2123	if (expect_false (curpid)) /* penalise the forking check even more */	2309	if (expect_false (curpid)) /* penalise the forking check even more */
2124	if (expect_false (getpid () != curpid))	2310	if (expect_false (getpid () != curpid))
…		…
2136	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2322	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2137	EV_INVOKE_PENDING;	2323	EV_INVOKE_PENDING;
2138	}	2324	}
2139	#endif	2325	#endif
2140		2326
		2327	#if EV_PREPARE_ENABLE
2141	/* queue prepare watchers (and execute them) */	2328	/* queue prepare watchers (and execute them) */
2142	if (expect_false (preparecnt))	2329	if (expect_false (preparecnt))
2143	{	2330	{
2144	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2331	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2145	EV_INVOKE_PENDING;	2332	EV_INVOKE_PENDING;
2146	}	2333	}
		2334	#endif
2147		2335
2148	if (expect_false (loop_done))	2336	if (expect_false (loop_done))
2149	break;	2337	break;
2150		2338
2151	/* we might have forked, so reify kernel state if necessary */	2339	/* we might have forked, so reify kernel state if necessary */
…		…
2202	waittime -= sleeptime;	2390	waittime -= sleeptime;
2203	}	2391	}
2204	}	2392	}
2205	}	2393	}
2206		2394
2207	#if EV_MINIMAL < 2	2395	#if EV_FEATURE_API
2208	++loop_count;	2396	++loop_count;
2209	#endif	2397	#endif
2210	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2398	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2211	backend_poll (EV_A_ waittime);	2399	backend_poll (EV_A_ waittime);
2212	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2400	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
…		…
2224	#if EV_IDLE_ENABLE	2412	#if EV_IDLE_ENABLE
2225	/* queue idle watchers unless other events are pending */	2413	/* queue idle watchers unless other events are pending */
2226	idle_reify (EV_A);	2414	idle_reify (EV_A);
2227	#endif	2415	#endif
2228		2416
		2417	#if EV_CHECK_ENABLE
2229	/* queue check watchers, to be executed first */	2418	/* queue check watchers, to be executed first */
2230	if (expect_false (checkcnt))	2419	if (expect_false (checkcnt))
2231	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2420	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2421	#endif
2232		2422
2233	EV_INVOKE_PENDING;	2423	EV_INVOKE_PENDING;
2234	}	2424	}
2235	while (expect_true (	2425	while (expect_true (
2236	activecnt	2426	activecnt
…		…
2239	));	2429	));
2240		2430
2241	if (loop_done == EVUNLOOP_ONE)	2431	if (loop_done == EVUNLOOP_ONE)
2242	loop_done = EVUNLOOP_CANCEL;	2432	loop_done = EVUNLOOP_CANCEL;
2243		2433
2244	#if EV_MINIMAL < 2	2434	#if EV_FEATURE_API
2245	--loop_depth;	2435	--loop_depth;
2246	#endif	2436	#endif
2247	}	2437	}
2248		2438
2249	void	2439	void
…		…
2302	inline_size void	2492	inline_size void
2303	wlist_del (WL *head, WL elem)	2493	wlist_del (WL *head, WL elem)
2304	{	2494	{
2305	while (*head)	2495	while (*head)
2306	{	2496	{
2307	if (*head == elem)	2497	if (expect_true (*head == elem))
2308	{	2498	{
2309	*head = elem->next;	2499	*head = elem->next;
2310	return;	2500	break;
2311	}	2501	}
2312		2502
2313	head = &(*head)->next;	2503	head = &(*head)->next;
2314	}	2504	}
2315	}	2505	}
…		…
2375		2565
2376	if (expect_false (ev_is_active (w)))	2566	if (expect_false (ev_is_active (w)))
2377	return;	2567	return;
2378		2568
2379	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2569	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2380	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2570	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2381		2571
2382	EV_FREQUENT_CHECK;	2572	EV_FREQUENT_CHECK;
2383		2573
2384	ev_start (EV_A_ (W)w, 1);	2574	ev_start (EV_A_ (W)w, 1);
2385	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2575	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2455	timers [active] = timers [timercnt + HEAP0];	2645	timers [active] = timers [timercnt + HEAP0];
2456	adjustheap (timers, timercnt, active);	2646	adjustheap (timers, timercnt, active);
2457	}	2647	}
2458	}	2648	}
2459		2649
2460	EV_FREQUENT_CHECK;
2461
2462	ev_at (w) -= mn_now;	2650	ev_at (w) -= mn_now;
2463		2651
2464	ev_stop (EV_A_ (W)w);	2652	ev_stop (EV_A_ (W)w);
		2653
		2654	EV_FREQUENT_CHECK;
2465	}	2655	}
2466		2656
2467	void noinline	2657	void noinline
2468	ev_timer_again (EV_P_ ev_timer *w)	2658	ev_timer_again (EV_P_ ev_timer *w)
2469	{	2659	{
…		…
2548	periodics [active] = periodics [periodiccnt + HEAP0];	2738	periodics [active] = periodics [periodiccnt + HEAP0];
2549	adjustheap (periodics, periodiccnt, active);	2739	adjustheap (periodics, periodiccnt, active);
2550	}	2740	}
2551	}	2741	}
2552		2742
2553	EV_FREQUENT_CHECK;
2554
2555	ev_stop (EV_A_ (W)w);	2743	ev_stop (EV_A_ (W)w);
		2744
		2745	EV_FREQUENT_CHECK;
2556	}	2746	}
2557		2747
2558	void noinline	2748	void noinline
2559	ev_periodic_again (EV_P_ ev_periodic *w)	2749	ev_periodic_again (EV_P_ ev_periodic *w)
2560	{	2750	{
…		…
2566		2756
2567	#ifndef SA_RESTART	2757	#ifndef SA_RESTART
2568	# define SA_RESTART 0	2758	# define SA_RESTART 0
2569	#endif	2759	#endif
2570		2760
		2761	#if EV_SIGNAL_ENABLE
		2762
2571	void noinline	2763	void noinline
2572	ev_signal_start (EV_P_ ev_signal *w)	2764	ev_signal_start (EV_P_ ev_signal *w)
2573	{	2765	{
2574	#if EV_MULTIPLICITY
2575	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2576	#endif
2577	if (expect_false (ev_is_active (w)))	2766	if (expect_false (ev_is_active (w)))
2578	return;	2767	return;
2579		2768
2580	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2769	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2581		2770
2582	evpipe_init (EV_A);	2771	#if EV_MULTIPLICITY
		2772	assert (("libev: a signal must not be attached to two different loops",
		2773	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2583		2774
2584	EV_FREQUENT_CHECK;	2775	signals [w->signum - 1].loop = EV_A;
		2776	#endif
2585		2777
		2778	EV_FREQUENT_CHECK;
		2779
		2780	#if EV_USE_SIGNALFD
		2781	if (sigfd == -2)
2586	{	2782	{
2587	#ifndef _WIN32	2783	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2588	sigset_t full, prev;	2784	if (sigfd < 0 && errno == EINVAL)
2589	sigfillset (&full);	2785	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2590	sigprocmask (SIG_SETMASK, &full, &prev);
2591	#endif
2592		2786
2593	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2787	if (sigfd >= 0)
		2788	{
		2789	fd_intern (sigfd); /* doing it twice will not hurt */
2594		2790
2595	#ifndef _WIN32	2791	sigemptyset (&sigfd_set);
2596	sigprocmask (SIG_SETMASK, &prev, 0);	2792
2597	#endif	2793	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2794	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2795	ev_io_start (EV_A_ &sigfd_w);
		2796	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2797	}
2598	}	2798	}
		2799
		2800	if (sigfd >= 0)
		2801	{
		2802	/* TODO: check .head */
		2803	sigaddset (&sigfd_set, w->signum);
		2804	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2805
		2806	signalfd (sigfd, &sigfd_set, 0);
		2807	}
		2808	#endif
2599		2809
2600	ev_start (EV_A_ (W)w, 1);	2810	ev_start (EV_A_ (W)w, 1);
2601	wlist_add (&signals [w->signum - 1].head, (WL)w);	2811	wlist_add (&signals [w->signum - 1].head, (WL)w);
2602		2812
2603	if (!((WL)w)->next)	2813	if (!((WL)w)->next)
		2814	# if EV_USE_SIGNALFD
		2815	if (sigfd < 0) /*TODO*/
		2816	# endif
2604	{	2817	{
2605	#if _WIN32	2818	# ifdef _WIN32
		2819	evpipe_init (EV_A);
		2820
2606	signal (w->signum, ev_sighandler);	2821	signal (w->signum, ev_sighandler);
2607	#else	2822	# else
2608	struct sigaction sa = { };	2823	struct sigaction sa;
		2824
		2825	evpipe_init (EV_A);
		2826
2609	sa.sa_handler = ev_sighandler;	2827	sa.sa_handler = ev_sighandler;
2610	sigfillset (&sa.sa_mask);	2828	sigfillset (&sa.sa_mask);
2611	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2829	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2612	sigaction (w->signum, &sa, 0);	2830	sigaction (w->signum, &sa, 0);
		2831
		2832	sigemptyset (&sa.sa_mask);
		2833	sigaddset (&sa.sa_mask, w->signum);
		2834	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2613	#endif	2835	#endif
2614	}	2836	}
2615		2837
2616	EV_FREQUENT_CHECK;	2838	EV_FREQUENT_CHECK;
2617	}	2839	}
2618		2840
2619	void noinline	2841	void noinline
…		…
2627		2849
2628	wlist_del (&signals [w->signum - 1].head, (WL)w);	2850	wlist_del (&signals [w->signum - 1].head, (WL)w);
2629	ev_stop (EV_A_ (W)w);	2851	ev_stop (EV_A_ (W)w);
2630		2852
2631	if (!signals [w->signum - 1].head)	2853	if (!signals [w->signum - 1].head)
		2854	{
		2855	#if EV_MULTIPLICITY
		2856	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2857	#endif
		2858	#if EV_USE_SIGNALFD
		2859	if (sigfd >= 0)
		2860	{
		2861	sigset_t ss;
		2862
		2863	sigemptyset (&ss);
		2864	sigaddset (&ss, w->signum);
		2865	sigdelset (&sigfd_set, w->signum);
		2866
		2867	signalfd (sigfd, &sigfd_set, 0);
		2868	sigprocmask (SIG_UNBLOCK, &ss, 0);
		2869	}
		2870	else
		2871	#endif
2632	signal (w->signum, SIG_DFL);	2872	signal (w->signum, SIG_DFL);
		2873	}
2633		2874
2634	EV_FREQUENT_CHECK;	2875	EV_FREQUENT_CHECK;
2635	}	2876	}
		2877
		2878	#endif
		2879
		2880	#if EV_CHILD_ENABLE
2636		2881
2637	void	2882	void
2638	ev_child_start (EV_P_ ev_child *w)	2883	ev_child_start (EV_P_ ev_child *w)
2639	{	2884	{
2640	#if EV_MULTIPLICITY	2885	#if EV_MULTIPLICITY
…		…
2644	return;	2889	return;
2645		2890
2646	EV_FREQUENT_CHECK;	2891	EV_FREQUENT_CHECK;
2647		2892
2648	ev_start (EV_A_ (W)w, 1);	2893	ev_start (EV_A_ (W)w, 1);
2649	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2894	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2650		2895
2651	EV_FREQUENT_CHECK;	2896	EV_FREQUENT_CHECK;
2652	}	2897	}
2653		2898
2654	void	2899	void
…		…
2658	if (expect_false (!ev_is_active (w)))	2903	if (expect_false (!ev_is_active (w)))
2659	return;	2904	return;
2660		2905
2661	EV_FREQUENT_CHECK;	2906	EV_FREQUENT_CHECK;
2662		2907
2663	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2908	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2664	ev_stop (EV_A_ (W)w);	2909	ev_stop (EV_A_ (W)w);
2665		2910
2666	EV_FREQUENT_CHECK;	2911	EV_FREQUENT_CHECK;
2667	}	2912	}
		2913
		2914	#endif
2668		2915
2669	#if EV_STAT_ENABLE	2916	#if EV_STAT_ENABLE
2670		2917
2671	# ifdef _WIN32	2918	# ifdef _WIN32
2672	# undef lstat	2919	# undef lstat
…		…
2678	#define MIN_STAT_INTERVAL 0.1074891	2925	#define MIN_STAT_INTERVAL 0.1074891
2679		2926
2680	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2927	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2681		2928
2682	#if EV_USE_INOTIFY	2929	#if EV_USE_INOTIFY
2683	# define EV_INOTIFY_BUFSIZE 8192	2930
		2931	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2932	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2684		2933
2685	static void noinline	2934	static void noinline
2686	infy_add (EV_P_ ev_stat *w)	2935	infy_add (EV_P_ ev_stat *w)
2687	{	2936	{
2688	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);	2937	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2689		2938
2690	if (w->wd < 0)	2939	if (w->wd >= 0)
		2940	{
		2941	struct statfs sfs;
		2942
		2943	/* now local changes will be tracked by inotify, but remote changes won't */
		2944	/* unless the filesystem is known to be local, we therefore still poll */
		2945	/* also do poll on <2.6.25, but with normal frequency */
		2946
		2947	if (!fs_2625)
		2948	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2949	else if (!statfs (w->path, &sfs)
		2950	&& (sfs.f_type == 0x1373 /* devfs */
		2951	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2952	|| sfs.f_type == 0x3153464a /* jfs */
		2953	|| sfs.f_type == 0x52654973 /* reiser3 */
		2954	|| sfs.f_type == 0x01021994 /* tempfs */
		2955	|| sfs.f_type == 0x58465342 /* xfs */))
		2956	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2957	else
		2958	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2691	{	2959	}
		2960	else
		2961	{
		2962	/* can't use inotify, continue to stat */
2692	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2963	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2693	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2694		2964
2695	/* monitor some parent directory for speedup hints */	2965	/* if path is not there, monitor some parent directory for speedup hints */
2696	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2966	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2697	/* but an efficiency issue only */	2967	/* but an efficiency issue only */
2698	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2968	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2699	{	2969	{
2700	char path [4096];	2970	char path [4096];
…		…
2716	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2986	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2717	}	2987	}
2718	}	2988	}
2719		2989
2720	if (w->wd >= 0)	2990	if (w->wd >= 0)
2721	{
2722	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2991	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2723		2992
2724	/* now local changes will be tracked by inotify, but remote changes won't */	2993	/* now re-arm timer, if required */
2725	/* unless the filesystem it known to be local, we therefore still poll */	2994	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2726	/* also do poll on <2.6.25, but with normal frequency */
2727	struct statfs sfs;
2728
2729	if (fs_2625 && !statfs (w->path, &sfs))
2730	if (sfs.f_type == 0x1373 /* devfs */
2731	|| sfs.f_type == 0xEF53 /* ext2/3 */
2732	|| sfs.f_type == 0x3153464a /* jfs */
2733	|| sfs.f_type == 0x52654973 /* reiser3 */
2734	|| sfs.f_type == 0x01021994 /* tempfs */
2735	|| sfs.f_type == 0x58465342 /* xfs */)
2736	return;
2737
2738	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2739	ev_timer_again (EV_A_ &w->timer);	2995	ev_timer_again (EV_A_ &w->timer);
2740	}	2996	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2741	}	2997	}
2742		2998
2743	static void noinline	2999	static void noinline
2744	infy_del (EV_P_ ev_stat *w)	3000	infy_del (EV_P_ ev_stat *w)
2745	{	3001	{
…		…
2748		3004
2749	if (wd < 0)	3005	if (wd < 0)
2750	return;	3006	return;
2751		3007
2752	w->wd = -2;	3008	w->wd = -2;
2753	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3009	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2754	wlist_del (&fs_hash [slot].head, (WL)w);	3010	wlist_del (&fs_hash [slot].head, (WL)w);
2755		3011
2756	/* remove this watcher, if others are watching it, they will rearm */	3012	/* remove this watcher, if others are watching it, they will rearm */
2757	inotify_rm_watch (fs_fd, wd);	3013	inotify_rm_watch (fs_fd, wd);
2758	}	3014	}
…		…
2760	static void noinline	3016	static void noinline
2761	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3017	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2762	{	3018	{
2763	if (slot < 0)	3019	if (slot < 0)
2764	/* overflow, need to check for all hash slots */	3020	/* overflow, need to check for all hash slots */
2765	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3021	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2766	infy_wd (EV_A_ slot, wd, ev);	3022	infy_wd (EV_A_ slot, wd, ev);
2767	else	3023	else
2768	{	3024	{
2769	WL w_;	3025	WL w_;
2770		3026
2771	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3027	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2772	{	3028	{
2773	ev_stat *w = (ev_stat *)w_;	3029	ev_stat *w = (ev_stat *)w_;
2774	w_ = w_->next; /* lets us remove this watcher and all before it */	3030	w_ = w_->next; /* lets us remove this watcher and all before it */
2775		3031
2776	if (w->wd == wd || wd == -1)	3032	if (w->wd == wd || wd == -1)
2777	{	3033	{
2778	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3034	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2779	{	3035	{
2780	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3036	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2781	w->wd = -1;	3037	w->wd = -1;
2782	infy_add (EV_A_ w); /* re-add, no matter what */	3038	infy_add (EV_A_ w); /* re-add, no matter what */
2783	}	3039	}
2784		3040
2785	stat_timer_cb (EV_A_ &w->timer, 0);	3041	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2790		3046
2791	static void	3047	static void
2792	infy_cb (EV_P_ ev_io *w, int revents)	3048	infy_cb (EV_P_ ev_io *w, int revents)
2793	{	3049	{
2794	char buf [EV_INOTIFY_BUFSIZE];	3050	char buf [EV_INOTIFY_BUFSIZE];
2795	struct inotify_event *ev = (struct inotify_event *)buf;
2796	int ofs;	3051	int ofs;
2797	int len = read (fs_fd, buf, sizeof (buf));	3052	int len = read (fs_fd, buf, sizeof (buf));
2798		3053
2799	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3054	for (ofs = 0; ofs < len; )
		3055	{
		3056	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2800	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3057	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3058	ofs += sizeof (struct inotify_event) + ev->len;
		3059	}
		3060	}
		3061
		3062	inline_size unsigned int
		3063	ev_linux_version (void)
		3064	{
		3065	struct utsname buf;
		3066	unsigned int v;
		3067	int i;
		3068	char *p = buf.release;
		3069
		3070	if (uname (&buf))
		3071	return 0;
		3072
		3073	for (i = 3+1; --i; )
		3074	{
		3075	unsigned int c = 0;
		3076
		3077	for (;;)
		3078	{
		3079	if (*p >= '0' && *p <= '9')
		3080	c = c * 10 + *p++ - '0';
		3081	else
		3082	{
		3083	p += *p == '.';
		3084	break;
		3085	}
		3086	}
		3087
		3088	v = (v << 8) | c;
		3089	}
		3090
		3091	return v;
2801	}	3092	}
2802		3093
2803	inline_size void	3094	inline_size void
2804	check_2625 (EV_P)	3095	ev_check_2625 (EV_P)
2805	{	3096	{
2806	/* kernels < 2.6.25 are borked	3097	/* kernels < 2.6.25 are borked
2807	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3098	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2808	*/	3099	*/
2809	struct utsname buf;	3100	if (ev_linux_version () < 0x020619)
2810	int major, minor, micro;
2811
2812	if (uname (&buf))
2813	return;	3101	return;
2814		3102
2815	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2816	return;
2817
2818	if (major < 2
2819	|| (major == 2 && minor < 6)
2820	|| (major == 2 && minor == 6 && micro < 25))
2821	return;
2822
2823	fs_2625 = 1;	3103	fs_2625 = 1;
		3104	}
		3105
		3106	inline_size int
		3107	infy_newfd (void)
		3108	{
		3109	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3110	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3111	if (fd >= 0)
		3112	return fd;
		3113	#endif
		3114	return inotify_init ();
2824	}	3115	}
2825		3116
2826	inline_size void	3117	inline_size void
2827	infy_init (EV_P)	3118	infy_init (EV_P)
2828	{	3119	{
2829	if (fs_fd != -2)	3120	if (fs_fd != -2)
2830	return;	3121	return;
2831		3122
2832	fs_fd = -1;	3123	fs_fd = -1;
2833		3124
2834	check_2625 (EV_A);	3125	ev_check_2625 (EV_A);
2835		3126
2836	fs_fd = inotify_init ();	3127	fs_fd = infy_newfd ();
2837		3128
2838	if (fs_fd >= 0)	3129	if (fs_fd >= 0)
2839	{	3130	{
		3131	fd_intern (fs_fd);
2840	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3132	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2841	ev_set_priority (&fs_w, EV_MAXPRI);	3133	ev_set_priority (&fs_w, EV_MAXPRI);
2842	ev_io_start (EV_A_ &fs_w);	3134	ev_io_start (EV_A_ &fs_w);
		3135	ev_unref (EV_A);
2843	}	3136	}
2844	}	3137	}
2845		3138
2846	inline_size void	3139	inline_size void
2847	infy_fork (EV_P)	3140	infy_fork (EV_P)
…		…
2849	int slot;	3142	int slot;
2850		3143
2851	if (fs_fd < 0)	3144	if (fs_fd < 0)
2852	return;	3145	return;
2853		3146
		3147	ev_ref (EV_A);
		3148	ev_io_stop (EV_A_ &fs_w);
2854	close (fs_fd);	3149	close (fs_fd);
2855	fs_fd = inotify_init ();	3150	fs_fd = infy_newfd ();
2856		3151
		3152	if (fs_fd >= 0)
		3153	{
		3154	fd_intern (fs_fd);
		3155	ev_io_set (&fs_w, fs_fd, EV_READ);
		3156	ev_io_start (EV_A_ &fs_w);
		3157	ev_unref (EV_A);
		3158	}
		3159
2857	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3160	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2858	{	3161	{
2859	WL w_ = fs_hash [slot].head;	3162	WL w_ = fs_hash [slot].head;
2860	fs_hash [slot].head = 0;	3163	fs_hash [slot].head = 0;
2861		3164
2862	while (w_)	3165	while (w_)
…		…
2867	w->wd = -1;	3170	w->wd = -1;
2868		3171
2869	if (fs_fd >= 0)	3172	if (fs_fd >= 0)
2870	infy_add (EV_A_ w); /* re-add, no matter what */	3173	infy_add (EV_A_ w); /* re-add, no matter what */
2871	else	3174	else
		3175	{
		3176	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3177	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2872	ev_timer_again (EV_A_ &w->timer);	3178	ev_timer_again (EV_A_ &w->timer);
		3179	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3180	}
2873	}	3181	}
2874	}	3182	}
2875	}	3183	}
2876		3184
2877	#endif	3185	#endif
…		…
2894	static void noinline	3202	static void noinline
2895	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3203	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2896	{	3204	{
2897	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3205	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2898		3206
2899	/* we copy this here each the time so that */	3207	ev_statdata prev = w->attr;
2900	/* prev has the old value when the callback gets invoked */
2901	w->prev = w->attr;
2902	ev_stat_stat (EV_A_ w);	3208	ev_stat_stat (EV_A_ w);
2903		3209
2904	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3210	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2905	if (	3211	if (
2906	w->prev.st_dev != w->attr.st_dev	3212	prev.st_dev != w->attr.st_dev
2907	|| w->prev.st_ino != w->attr.st_ino	3213	|| prev.st_ino != w->attr.st_ino
2908	|| w->prev.st_mode != w->attr.st_mode	3214	|| prev.st_mode != w->attr.st_mode
2909	|| w->prev.st_nlink != w->attr.st_nlink	3215	|| prev.st_nlink != w->attr.st_nlink
2910	|| w->prev.st_uid != w->attr.st_uid	3216	|| prev.st_uid != w->attr.st_uid
2911	|| w->prev.st_gid != w->attr.st_gid	3217	|| prev.st_gid != w->attr.st_gid
2912	|| w->prev.st_rdev != w->attr.st_rdev	3218	|| prev.st_rdev != w->attr.st_rdev
2913	|| w->prev.st_size != w->attr.st_size	3219	|| prev.st_size != w->attr.st_size
2914	|| w->prev.st_atime != w->attr.st_atime	3220	|| prev.st_atime != w->attr.st_atime
2915	|| w->prev.st_mtime != w->attr.st_mtime	3221	|| prev.st_mtime != w->attr.st_mtime
2916	|| w->prev.st_ctime != w->attr.st_ctime	3222	|| prev.st_ctime != w->attr.st_ctime
2917	) {	3223	) {
		3224	/* we only update w->prev on actual differences */
		3225	/* in case we test more often than invoke the callback, */
		3226	/* to ensure that prev is always different to attr */
		3227	w->prev = prev;
		3228
2918	#if EV_USE_INOTIFY	3229	#if EV_USE_INOTIFY
2919	if (fs_fd >= 0)	3230	if (fs_fd >= 0)
2920	{	3231	{
2921	infy_del (EV_A_ w);	3232	infy_del (EV_A_ w);
2922	infy_add (EV_A_ w);	3233	infy_add (EV_A_ w);
…		…
2947		3258
2948	if (fs_fd >= 0)	3259	if (fs_fd >= 0)
2949	infy_add (EV_A_ w);	3260	infy_add (EV_A_ w);
2950	else	3261	else
2951	#endif	3262	#endif
		3263	{
2952	ev_timer_again (EV_A_ &w->timer);	3264	ev_timer_again (EV_A_ &w->timer);
		3265	ev_unref (EV_A);
		3266	}
2953		3267
2954	ev_start (EV_A_ (W)w, 1);	3268	ev_start (EV_A_ (W)w, 1);
2955		3269
2956	EV_FREQUENT_CHECK;	3270	EV_FREQUENT_CHECK;
2957	}	3271	}
…		…
2966	EV_FREQUENT_CHECK;	3280	EV_FREQUENT_CHECK;
2967		3281
2968	#if EV_USE_INOTIFY	3282	#if EV_USE_INOTIFY
2969	infy_del (EV_A_ w);	3283	infy_del (EV_A_ w);
2970	#endif	3284	#endif
		3285
		3286	if (ev_is_active (&w->timer))
		3287	{
		3288	ev_ref (EV_A);
2971	ev_timer_stop (EV_A_ &w->timer);	3289	ev_timer_stop (EV_A_ &w->timer);
		3290	}
2972		3291
2973	ev_stop (EV_A_ (W)w);	3292	ev_stop (EV_A_ (W)w);
2974		3293
2975	EV_FREQUENT_CHECK;	3294	EV_FREQUENT_CHECK;
2976	}	3295	}
…		…
3021		3340
3022	EV_FREQUENT_CHECK;	3341	EV_FREQUENT_CHECK;
3023	}	3342	}
3024	#endif	3343	#endif
3025		3344
		3345	#if EV_PREPARE_ENABLE
3026	void	3346	void
3027	ev_prepare_start (EV_P_ ev_prepare *w)	3347	ev_prepare_start (EV_P_ ev_prepare *w)
3028	{	3348	{
3029	if (expect_false (ev_is_active (w)))	3349	if (expect_false (ev_is_active (w)))
3030	return;	3350	return;
…		…
3056		3376
3057	ev_stop (EV_A_ (W)w);	3377	ev_stop (EV_A_ (W)w);
3058		3378
3059	EV_FREQUENT_CHECK;	3379	EV_FREQUENT_CHECK;
3060	}	3380	}
		3381	#endif
3061		3382
		3383	#if EV_CHECK_ENABLE
3062	void	3384	void
3063	ev_check_start (EV_P_ ev_check *w)	3385	ev_check_start (EV_P_ ev_check *w)
3064	{	3386	{
3065	if (expect_false (ev_is_active (w)))	3387	if (expect_false (ev_is_active (w)))
3066	return;	3388	return;
…		…
3092		3414
3093	ev_stop (EV_A_ (W)w);	3415	ev_stop (EV_A_ (W)w);
3094		3416
3095	EV_FREQUENT_CHECK;	3417	EV_FREQUENT_CHECK;
3096	}	3418	}
		3419	#endif
3097		3420
3098	#if EV_EMBED_ENABLE	3421	#if EV_EMBED_ENABLE
3099	void noinline	3422	void noinline
3100	ev_embed_sweep (EV_P_ ev_embed *w)	3423	ev_embed_sweep (EV_P_ ev_embed *w)
3101	{	3424	{
…		…
3117	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3440	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3118	{	3441	{
3119	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3442	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3120		3443
3121	{	3444	{
3122	struct ev_loop *loop = w->other;	3445	EV_P = w->other;
3123		3446
3124	while (fdchangecnt)	3447	while (fdchangecnt)
3125	{	3448	{
3126	fd_reify (EV_A);	3449	fd_reify (EV_A);
3127	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3450	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
3135	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	3458	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3136		3459
3137	ev_embed_stop (EV_A_ w);	3460	ev_embed_stop (EV_A_ w);
3138		3461
3139	{	3462	{
3140	struct ev_loop *loop = w->other;	3463	EV_P = w->other;
3141		3464
3142	ev_loop_fork (EV_A);	3465	ev_loop_fork (EV_A);
3143	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3466	ev_loop (EV_A_ EVLOOP_NONBLOCK);
3144	}	3467	}
3145		3468
…		…
3159	{	3482	{
3160	if (expect_false (ev_is_active (w)))	3483	if (expect_false (ev_is_active (w)))
3161	return;	3484	return;
3162		3485
3163	{	3486	{
3164	struct ev_loop *loop = w->other;	3487	EV_P = w->other;
3165	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3488	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3166	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3489	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3167	}	3490	}
3168		3491
3169	EV_FREQUENT_CHECK;	3492	EV_FREQUENT_CHECK;
…		…
3196		3519
3197	ev_io_stop (EV_A_ &w->io);	3520	ev_io_stop (EV_A_ &w->io);
3198	ev_prepare_stop (EV_A_ &w->prepare);	3521	ev_prepare_stop (EV_A_ &w->prepare);
3199	ev_fork_stop (EV_A_ &w->fork);	3522	ev_fork_stop (EV_A_ &w->fork);
3200		3523
		3524	ev_stop (EV_A_ (W)w);
		3525
3201	EV_FREQUENT_CHECK;	3526	EV_FREQUENT_CHECK;
3202	}	3527	}
3203	#endif	3528	#endif
3204		3529
3205	#if EV_FORK_ENABLE	3530	#if EV_FORK_ENABLE
…		…
3281		3606
3282	void	3607	void
3283	ev_async_send (EV_P_ ev_async *w)	3608	ev_async_send (EV_P_ ev_async *w)
3284	{	3609	{
3285	w->sent = 1;	3610	w->sent = 1;
3286	evpipe_write (EV_A_ &gotasync);	3611	evpipe_write (EV_A_ &async_pending);
3287	}	3612	}
3288	#endif	3613	#endif
3289		3614
3290	/*****************************************************************************/	3615	/*****************************************************************************/
3291		3616
…		…
3331	{	3656	{
3332	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3657	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3333		3658
3334	if (expect_false (!once))	3659	if (expect_false (!once))
3335	{	3660	{
3336	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3661	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3337	return;	3662	return;
3338	}	3663	}
3339		3664
3340	once->cb = cb;	3665	once->cb = cb;
3341	once->arg = arg;	3666	once->arg = arg;
…		…
3428	if (types & EV_ASYNC)	3753	if (types & EV_ASYNC)
3429	for (i = asynccnt; i--; )	3754	for (i = asynccnt; i--; )
3430	cb (EV_A_ EV_ASYNC, asyncs [i]);	3755	cb (EV_A_ EV_ASYNC, asyncs [i]);
3431	#endif	3756	#endif
3432		3757
		3758	#if EV_PREPARE_ENABLE
3433	if (types & EV_PREPARE)	3759	if (types & EV_PREPARE)
3434	for (i = preparecnt; i--; )	3760	for (i = preparecnt; i--; )
3435	#if EV_EMBED_ENABLE	3761	# if EV_EMBED_ENABLE
3436	if (ev_cb (prepares [i]) != embed_prepare_cb)	3762	if (ev_cb (prepares [i]) != embed_prepare_cb)
3437	#endif	3763	# endif
3438	cb (EV_A_ EV_PREPARE, prepares [i]);	3764	cb (EV_A_ EV_PREPARE, prepares [i]);
		3765	#endif
3439		3766
		3767	#if EV_CHECK_ENABLE
3440	if (types & EV_CHECK)	3768	if (types & EV_CHECK)
3441	for (i = checkcnt; i--; )	3769	for (i = checkcnt; i--; )
3442	cb (EV_A_ EV_CHECK, checks [i]);	3770	cb (EV_A_ EV_CHECK, checks [i]);
		3771	#endif
3443		3772
		3773	#if EV_SIGNAL_ENABLE
3444	if (types & EV_SIGNAL)	3774	if (types & EV_SIGNAL)
3445	for (i = 0; i < signalmax; ++i)	3775	for (i = 0; i < EV_NSIG - 1; ++i)
3446	for (wl = signals [i].head; wl; )	3776	for (wl = signals [i].head; wl; )
3447	{	3777	{
3448	wn = wl->next;	3778	wn = wl->next;
3449	cb (EV_A_ EV_SIGNAL, wl);	3779	cb (EV_A_ EV_SIGNAL, wl);
3450	wl = wn;	3780	wl = wn;
3451	}	3781	}
		3782	#endif
3452		3783
		3784	#if EV_CHILD_ENABLE
3453	if (types & EV_CHILD)	3785	if (types & EV_CHILD)
3454	for (i = EV_PID_HASHSIZE; i--; )	3786	for (i = (EV_PID_HASHSIZE); i--; )
3455	for (wl = childs [i]; wl; )	3787	for (wl = childs [i]; wl; )
3456	{	3788	{
3457	wn = wl->next;	3789	wn = wl->next;
3458	cb (EV_A_ EV_CHILD, wl);	3790	cb (EV_A_ EV_CHILD, wl);
3459	wl = wn;	3791	wl = wn;
3460	}	3792	}
		3793	#endif
3461	/* EV_STAT 0x00001000 /* stat data changed */	3794	/* EV_STAT 0x00001000 /* stat data changed */
3462	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3795	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3463	}	3796	}
3464	#endif	3797	#endif
3465		3798

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