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Comparing libev/ev.c (file contents):
Revision 1.303 by root, Sun Jul 19 01:36:34 2009 UTC vs.
Revision 1.340 by root, Tue Mar 16 20:39:29 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	*
…		…
79	# endif	79	# endif
80	# endif	80	# endif
81		81
82	# ifndef EV_USE_NANOSLEEP	82	# ifndef EV_USE_NANOSLEEP
83	# if HAVE_NANOSLEEP	83	# if HAVE_NANOSLEEP
84	# define EV_USE_NANOSLEEP 1	84	# define EV_USE_NANOSLEEP EV_FEATURE_OS
85	# else	85	# else
86	# define EV_USE_NANOSLEEP 0	86	# define EV_USE_NANOSLEEP 0
87	# endif	87	# endif
88	# endif	88	# endif
89		89
90	# ifndef EV_USE_SELECT	90	# ifndef EV_USE_SELECT
91	# if HAVE_SELECT && HAVE_SYS_SELECT_H	91	# if HAVE_SELECT && HAVE_SYS_SELECT_H
92	# define EV_USE_SELECT 1	92	# define EV_USE_SELECT EV_FEATURE_BACKENDS
93	# else	93	# else
94	# define EV_USE_SELECT 0	94	# define EV_USE_SELECT 0
95	# endif	95	# endif
96	# endif	96	# endif
97		97
98	# ifndef EV_USE_POLL	98	# ifndef EV_USE_POLL
99	# if HAVE_POLL && HAVE_POLL_H	99	# if HAVE_POLL && HAVE_POLL_H
100	# define EV_USE_POLL 1	100	# define EV_USE_POLL EV_FEATURE_BACKENDS
101	# else	101	# else
102	# define EV_USE_POLL 0	102	# define EV_USE_POLL 0
103	# endif	103	# endif
104	# endif	104	# endif
105		105
106	# ifndef EV_USE_EPOLL	106	# ifndef EV_USE_EPOLL
107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108	# define EV_USE_EPOLL 1	108	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
109	# else	109	# else
110	# define EV_USE_EPOLL 0	110	# define EV_USE_EPOLL 0
111	# endif	111	# endif
112	# endif	112	# endif
113		113
114	# ifndef EV_USE_KQUEUE	114	# ifndef EV_USE_KQUEUE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116	# define EV_USE_KQUEUE 1	116	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
117	# else	117	# else
118	# define EV_USE_KQUEUE 0	118	# define EV_USE_KQUEUE 0
119	# endif	119	# endif
120	# endif	120	# endif
121		121
122	# ifndef EV_USE_PORT	122	# ifndef EV_USE_PORT
123	# if HAVE_PORT_H && HAVE_PORT_CREATE	123	# if HAVE_PORT_H && HAVE_PORT_CREATE
124	# define EV_USE_PORT 1	124	# define EV_USE_PORT EV_FEATURE_BACKENDS
125	# else	125	# else
126	# define EV_USE_PORT 0	126	# define EV_USE_PORT 0
127	# endif	127	# endif
128	# endif	128	# endif
129		129
130	# ifndef EV_USE_INOTIFY	130	# ifndef EV_USE_INOTIFY
131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132	# define EV_USE_INOTIFY 1	132	# define EV_USE_INOTIFY EV_FEATURE_OS
133	# else	133	# else
134	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
135	# endif	135	# endif
136	# endif	136	# endif
137		137
138	# ifndef EV_USE_SIGNALFD	138	# ifndef EV_USE_SIGNALFD
139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H	139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140	# define EV_USE_SIGNALFD 1	140	# define EV_USE_SIGNALFD EV_FEATURE_OS
141	# else	141	# else
142	# define EV_USE_SIGNALFD 0	142	# define EV_USE_SIGNALFD 0
143	# endif	143	# endif
144	# endif	144	# endif
145		145
146	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
147	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
148	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD EV_FEATURE_OS
149	# else	149	# else
150	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
151	# endif	151	# endif
152	# endif	152	# endif
153		153
154	#endif	154	#endif
155		155
156	#include <math.h>	156	#include <math.h>
157	#include <stdlib.h>	157	#include <stdlib.h>
		158	#include <string.h>
158	#include <fcntl.h>	159	#include <fcntl.h>
159	#include <stddef.h>	160	#include <stddef.h>
160		161
161	#include <stdio.h>	162	#include <stdio.h>
162		163
163	#include <assert.h>	164	#include <assert.h>
164	#include <errno.h>	165	#include <errno.h>
165	#include <sys/types.h>	166	#include <sys/types.h>
166	#include <time.h>	167	#include <time.h>
		168	#include <limits.h>
167		169
168	#include <signal.h>	170	#include <signal.h>
169		171
170	#ifdef EV_H	172	#ifdef EV_H
171	# include EV_H	173	# include EV_H
…		…
182	# define WIN32_LEAN_AND_MEAN	184	# define WIN32_LEAN_AND_MEAN
183	# include <windows.h>	185	# include <windows.h>
184	# ifndef EV_SELECT_IS_WINSOCKET	186	# ifndef EV_SELECT_IS_WINSOCKET
185	# define EV_SELECT_IS_WINSOCKET 1	187	# define EV_SELECT_IS_WINSOCKET 1
186	# endif	188	# endif
		189	# undef EV_AVOID_STDIO
187	#endif	190	#endif
188		191
189	/* this block tries to deduce configuration from header-defined symbols and defaults */	192	/* this block tries to deduce configuration from header-defined symbols and defaults */
		193
		194	/* try to deduce the maximum number of signals on this platform */
		195	#if defined (EV_NSIG)
		196	/* use what's provided */
		197	#elif defined (NSIG)
		198	# define EV_NSIG (NSIG)
		199	#elif defined(_NSIG)
		200	# define EV_NSIG (_NSIG)
		201	#elif defined (SIGMAX)
		202	# define EV_NSIG (SIGMAX+1)
		203	#elif defined (SIG_MAX)
		204	# define EV_NSIG (SIG_MAX+1)
		205	#elif defined (_SIG_MAX)
		206	# define EV_NSIG (_SIG_MAX+1)
		207	#elif defined (MAXSIG)
		208	# define EV_NSIG (MAXSIG+1)
		209	#elif defined (MAX_SIG)
		210	# define EV_NSIG (MAX_SIG+1)
		211	#elif defined (SIGARRAYSIZE)
		212	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
		213	#elif defined (_sys_nsig)
		214	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		215	#else
		216	# error "unable to find value for NSIG, please report"
		217	/* to make it compile regardless, just remove the above line, */
		218	/* but consider reporting it, too! :) */
		219	# define EV_NSIG 65
		220	#endif
190		221
191	#ifndef EV_USE_CLOCK_SYSCALL	222	#ifndef EV_USE_CLOCK_SYSCALL
192	# if __linux && __GLIBC__ >= 2	223	# if __linux && __GLIBC__ >= 2
193	# define EV_USE_CLOCK_SYSCALL 1	224	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
194	# else	225	# else
195	# define EV_USE_CLOCK_SYSCALL 0	226	# define EV_USE_CLOCK_SYSCALL 0
196	# endif	227	# endif
197	#endif	228	#endif
198		229
199	#ifndef EV_USE_MONOTONIC	230	#ifndef EV_USE_MONOTONIC
200	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	231	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
201	# define EV_USE_MONOTONIC 1	232	# define EV_USE_MONOTONIC EV_FEATURE_OS
202	# else	233	# else
203	# define EV_USE_MONOTONIC 0	234	# define EV_USE_MONOTONIC 0
204	# endif	235	# endif
205	#endif	236	#endif
206		237
…		…
208	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	239	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
209	#endif	240	#endif
210		241
211	#ifndef EV_USE_NANOSLEEP	242	#ifndef EV_USE_NANOSLEEP
212	# if _POSIX_C_SOURCE >= 199309L	243	# if _POSIX_C_SOURCE >= 199309L
213	# define EV_USE_NANOSLEEP 1	244	# define EV_USE_NANOSLEEP EV_FEATURE_OS
214	# else	245	# else
215	# define EV_USE_NANOSLEEP 0	246	# define EV_USE_NANOSLEEP 0
216	# endif	247	# endif
217	#endif	248	#endif
218		249
219	#ifndef EV_USE_SELECT	250	#ifndef EV_USE_SELECT
220	# define EV_USE_SELECT 1	251	# define EV_USE_SELECT EV_FEATURE_BACKENDS
221	#endif	252	#endif
222		253
223	#ifndef EV_USE_POLL	254	#ifndef EV_USE_POLL
224	# ifdef _WIN32	255	# ifdef _WIN32
225	# define EV_USE_POLL 0	256	# define EV_USE_POLL 0
226	# else	257	# else
227	# define EV_USE_POLL 1	258	# define EV_USE_POLL EV_FEATURE_BACKENDS
228	# endif	259	# endif
229	#endif	260	#endif
230		261
231	#ifndef EV_USE_EPOLL	262	#ifndef EV_USE_EPOLL
232	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	263	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
233	# define EV_USE_EPOLL 1	264	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
234	# else	265	# else
235	# define EV_USE_EPOLL 0	266	# define EV_USE_EPOLL 0
236	# endif	267	# endif
237	#endif	268	#endif
238		269
…		…
244	# define EV_USE_PORT 0	275	# define EV_USE_PORT 0
245	#endif	276	#endif
246		277
247	#ifndef EV_USE_INOTIFY	278	#ifndef EV_USE_INOTIFY
248	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	279	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
249	# define EV_USE_INOTIFY 1	280	# define EV_USE_INOTIFY EV_FEATURE_OS
250	# else	281	# else
251	# define EV_USE_INOTIFY 0	282	# define EV_USE_INOTIFY 0
252	# endif	283	# endif
253	#endif	284	#endif
254		285
255	#ifndef EV_PID_HASHSIZE	286	#ifndef EV_PID_HASHSIZE
256	# if EV_MINIMAL	287	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257	# define EV_PID_HASHSIZE 1
258	# else
259	# define EV_PID_HASHSIZE 16
260	# endif
261	#endif	288	#endif
262		289
263	#ifndef EV_INOTIFY_HASHSIZE	290	#ifndef EV_INOTIFY_HASHSIZE
264	# if EV_MINIMAL	291	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
265	# define EV_INOTIFY_HASHSIZE 1
266	# else
267	# define EV_INOTIFY_HASHSIZE 16
268	# endif
269	#endif	292	#endif
270		293
271	#ifndef EV_USE_EVENTFD	294	#ifndef EV_USE_EVENTFD
272	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	295	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
273	# define EV_USE_EVENTFD 1	296	# define EV_USE_EVENTFD EV_FEATURE_OS
274	# else	297	# else
275	# define EV_USE_EVENTFD 0	298	# define EV_USE_EVENTFD 0
276	# endif	299	# endif
277	#endif	300	#endif
278		301
279	#ifndef EV_USE_SIGNALFD	302	#ifndef EV_USE_SIGNALFD
280	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))	303	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
281	# define EV_USE_SIGNALFD 1	304	# define EV_USE_SIGNALFD EV_FEATURE_OS
282	# else	305	# else
283	# define EV_USE_SIGNALFD 0	306	# define EV_USE_SIGNALFD 0
284	# endif	307	# endif
285	#endif	308	#endif
286		309
…		…
289	# define EV_USE_4HEAP 1	312	# define EV_USE_4HEAP 1
290	# define EV_HEAP_CACHE_AT 1	313	# define EV_HEAP_CACHE_AT 1
291	#endif	314	#endif
292		315
293	#ifndef EV_VERIFY	316	#ifndef EV_VERIFY
294	# define EV_VERIFY !EV_MINIMAL	317	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
295	#endif	318	#endif
296		319
297	#ifndef EV_USE_4HEAP	320	#ifndef EV_USE_4HEAP
298	# define EV_USE_4HEAP !EV_MINIMAL	321	# define EV_USE_4HEAP EV_FEATURE_DATA
299	#endif	322	#endif
300		323
301	#ifndef EV_HEAP_CACHE_AT	324	#ifndef EV_HEAP_CACHE_AT
302	# define EV_HEAP_CACHE_AT !EV_MINIMAL	325	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
303	#endif	326	#endif
304		327
305	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	328	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
306	/* which makes programs even slower. might work on other unices, too. */	329	/* which makes programs even slower. might work on other unices, too. */
307	#if EV_USE_CLOCK_SYSCALL	330	#if EV_USE_CLOCK_SYSCALL
…		…
316	# endif	339	# endif
317	#endif	340	#endif
318		341
319	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	342	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
320		343
		344	#ifdef _AIX
		345	/* AIX has a completely broken poll.h header */
		346	# undef EV_USE_POLL
		347	# define EV_USE_POLL 0
		348	#endif
		349
321	#ifndef CLOCK_MONOTONIC	350	#ifndef CLOCK_MONOTONIC
322	# undef EV_USE_MONOTONIC	351	# undef EV_USE_MONOTONIC
323	# define EV_USE_MONOTONIC 0	352	# define EV_USE_MONOTONIC 0
324	#endif	353	#endif
325		354
…		…
359	# include <stdint.h>	388	# include <stdint.h>
360	# ifndef EFD_NONBLOCK	389	# ifndef EFD_NONBLOCK
361	# define EFD_NONBLOCK O_NONBLOCK	390	# define EFD_NONBLOCK O_NONBLOCK
362	# endif	391	# endif
363	# ifndef EFD_CLOEXEC	392	# ifndef EFD_CLOEXEC
		393	# ifdef O_CLOEXEC
364	# define EFD_CLOEXEC O_CLOEXEC	394	# define EFD_CLOEXEC O_CLOEXEC
		395	# else
		396	# define EFD_CLOEXEC 02000000
		397	# endif
365	# endif	398	# endif
366	# ifdef __cplusplus	399	# ifdef __cplusplus
367	extern "C" {	400	extern "C" {
368	# endif	401	# endif
369	int eventfd (unsigned int initval, int flags);	402	int (eventfd) (unsigned int initval, int flags);
370	# ifdef __cplusplus	403	# ifdef __cplusplus
371	}	404	}
372	# endif	405	# endif
373	#endif	406	#endif
374		407
375	#if EV_USE_SIGNALFD	408	#if EV_USE_SIGNALFD
376	# include <sys/signalfd.h>	409	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		410	# include <stdint.h>
		411	# ifndef SFD_NONBLOCK
		412	# define SFD_NONBLOCK O_NONBLOCK
377	#endif	413	# endif
		414	# ifndef SFD_CLOEXEC
		415	# ifdef O_CLOEXEC
		416	# define SFD_CLOEXEC O_CLOEXEC
		417	# else
		418	# define SFD_CLOEXEC 02000000
		419	# endif
		420	# endif
		421	# ifdef __cplusplus
		422	extern "C" {
		423	# endif
		424	int signalfd (int fd, const sigset_t *mask, int flags);
		425
		426	struct signalfd_siginfo
		427	{
		428	uint32_t ssi_signo;
		429	char pad[128 - sizeof (uint32_t)];
		430	};
		431	# ifdef __cplusplus
		432	}
		433	# endif
		434	#endif
		435
378		436
379	/**/	437	/**/
380		438
381	#if EV_VERIFY >= 3	439	#if EV_VERIFY >= 3
382	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	440	# define EV_FREQUENT_CHECK ev_verify (EV_A)
383	#else	441	#else
384	# define EV_FREQUENT_CHECK do { } while (0)	442	# define EV_FREQUENT_CHECK do { } while (0)
385	#endif	443	#endif
386		444
387	/*	445	/*
…		…
394	*/	452	*/
395	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	453	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
396		454
397	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	455	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
398	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	456	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
399	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
400		457
401	#if __GNUC__ >= 4	458	#if __GNUC__ >= 4
402	# define expect(expr,value) __builtin_expect ((expr),(value))	459	# define expect(expr,value) __builtin_expect ((expr),(value))
403	# define noinline __attribute__ ((noinline))	460	# define noinline __attribute__ ((noinline))
404	#else	461	#else
…		…
411		468
412	#define expect_false(expr) expect ((expr) != 0, 0)	469	#define expect_false(expr) expect ((expr) != 0, 0)
413	#define expect_true(expr) expect ((expr) != 0, 1)	470	#define expect_true(expr) expect ((expr) != 0, 1)
414	#define inline_size static inline	471	#define inline_size static inline
415		472
416	#if EV_MINIMAL	473	#if EV_FEATURE_CODE
		474	# define inline_speed static inline
		475	#else
417	# define inline_speed static noinline	476	# define inline_speed static noinline
418	#else
419	# define inline_speed static inline
420	#endif	477	#endif
421		478
422	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	479	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
423		480
424	#if EV_MINPRI == EV_MAXPRI	481	#if EV_MINPRI == EV_MAXPRI
…		…
445		502
446	#if EV_USE_MONOTONIC	503	#if EV_USE_MONOTONIC
447	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	504	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
448	#endif	505	#endif
449		506
		507	#ifndef EV_FD_TO_WIN32_HANDLE
		508	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		509	#endif
		510	#ifndef EV_WIN32_HANDLE_TO_FD
		511	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		512	#endif
		513	#ifndef EV_WIN32_CLOSE_FD
		514	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		515	#endif
		516
450	#ifdef _WIN32	517	#ifdef _WIN32
451	# include "ev_win32.c"	518	# include "ev_win32.c"
452	#endif	519	#endif
453		520
454	/*****************************************************************************/	521	/*****************************************************************************/
		522
		523	#if EV_AVOID_STDIO
		524	static void noinline
		525	ev_printerr (const char *msg)
		526	{
		527	write (STDERR_FILENO, msg, strlen (msg));
		528	}
		529	#endif
455		530
456	static void (*syserr_cb)(const char *msg);	531	static void (*syserr_cb)(const char *msg);
457		532
458	void	533	void
459	ev_set_syserr_cb (void (*cb)(const char *msg))	534	ev_set_syserr_cb (void (*cb)(const char *msg))
…		…
469		544
470	if (syserr_cb)	545	if (syserr_cb)
471	syserr_cb (msg);	546	syserr_cb (msg);
472	else	547	else
473	{	548	{
		549	#if EV_AVOID_STDIO
		550	const char *err = strerror (errno);
		551
		552	ev_printerr (msg);
		553	ev_printerr (": ");
		554	ev_printerr (err);
		555	ev_printerr ("\n");
		556	#else
474	perror (msg);	557	perror (msg);
		558	#endif
475	abort ();	559	abort ();
476	}	560	}
477	}	561	}
478		562
479	static void *	563	static void *
480	ev_realloc_emul (void *ptr, long size)	564	ev_realloc_emul (void *ptr, long size)
481	{	565	{
		566	#if __GLIBC__
		567	return realloc (ptr, size);
		568	#else
482	/* some systems, notably openbsd and darwin, fail to properly	569	/* some systems, notably openbsd and darwin, fail to properly
483	* implement realloc (x, 0) (as required by both ansi c-98 and	570	* implement realloc (x, 0) (as required by both ansi c-89 and
484	* the single unix specification, so work around them here.	571	* the single unix specification, so work around them here.
485	*/	572	*/
486		573
487	if (size)	574	if (size)
488	return realloc (ptr, size);	575	return realloc (ptr, size);
489		576
490	free (ptr);	577	free (ptr);
491	return 0;	578	return 0;
		579	#endif
492	}	580	}
493		581
494	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	582	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
495		583
496	void	584	void
…		…
504	{	592	{
505	ptr = alloc (ptr, size);	593	ptr = alloc (ptr, size);
506		594
507	if (!ptr && size)	595	if (!ptr && size)
508	{	596	{
		597	#if EV_AVOID_STDIO
		598	ev_printerr ("libev: memory allocation failed, aborting.\n");
		599	#else
509	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	600	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		601	#endif
510	abort ();	602	abort ();
511	}	603	}
512		604
513	return ptr;	605	return ptr;
514	}	606	}
…		…
596		688
597	static int ev_default_loop_ptr;	689	static int ev_default_loop_ptr;
598		690
599	#endif	691	#endif
600		692
601	#if EV_MINIMAL < 2	693	#if EV_FEATURE_API
602	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	694	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
603	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	695	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
604	# define EV_INVOKE_PENDING invoke_cb (EV_A)	696	# define EV_INVOKE_PENDING invoke_cb (EV_A)
605	#else	697	#else
606	# define EV_RELEASE_CB (void)0	698	# define EV_RELEASE_CB (void)0
…		…
791	}	883	}
792		884
793	/*****************************************************************************/	885	/*****************************************************************************/
794		886
795	inline_speed void	887	inline_speed void
796	fd_event_nc (EV_P_ int fd, int revents)	888	fd_event_nocheck (EV_P_ int fd, int revents)
797	{	889	{
798	ANFD *anfd = anfds + fd;	890	ANFD *anfd = anfds + fd;
799	ev_io *w;	891	ev_io *w;
800		892
801	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	893	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
813	fd_event (EV_P_ int fd, int revents)	905	fd_event (EV_P_ int fd, int revents)
814	{	906	{
815	ANFD *anfd = anfds + fd;	907	ANFD *anfd = anfds + fd;
816		908
817	if (expect_true (!anfd->reify))	909	if (expect_true (!anfd->reify))
818	fd_event_nc (EV_A_ fd, revents);	910	fd_event_nocheck (EV_A_ fd, revents);
819	}	911	}
820		912
821	void	913	void
822	ev_feed_fd_event (EV_P_ int fd, int revents)	914	ev_feed_fd_event (EV_P_ int fd, int revents)
823	{	915	{
824	if (fd >= 0 && fd < anfdmax)	916	if (fd >= 0 && fd < anfdmax)
825	fd_event_nc (EV_A_ fd, revents);	917	fd_event_nocheck (EV_A_ fd, revents);
826	}	918	}
827		919
828	/* make sure the external fd watch events are in-sync */	920	/* make sure the external fd watch events are in-sync */
829	/* with the kernel/libev internal state */	921	/* with the kernel/libev internal state */
830	inline_size void	922	inline_size void
…		…
845		937
846	#if EV_SELECT_IS_WINSOCKET	938	#if EV_SELECT_IS_WINSOCKET
847	if (events)	939	if (events)
848	{	940	{
849	unsigned long arg;	941	unsigned long arg;
850	#ifdef EV_FD_TO_WIN32_HANDLE
851	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	942	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
852	#else
853	anfd->handle = _get_osfhandle (fd);
854	#endif
855	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	943	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
856	}	944	}
857	#endif	945	#endif
858		946
859	{	947	{
…		…
897	ev_io_stop (EV_A_ w);	985	ev_io_stop (EV_A_ w);
898	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	986	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
899	}	987	}
900	}	988	}
901		989
902	/* check whether the given fd is atcually valid, for error recovery */	990	/* check whether the given fd is actually valid, for error recovery */
903	inline_size int	991	inline_size int
904	fd_valid (int fd)	992	fd_valid (int fd)
905	{	993	{
906	#ifdef _WIN32	994	#ifdef _WIN32
907	return _get_osfhandle (fd) != -1;	995	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
908	#else	996	#else
909	return fcntl (fd, F_GETFD) != -1;	997	return fcntl (fd, F_GETFD) != -1;
910	#endif	998	#endif
911	}	999	}
912		1000
…		…
930		1018
931	for (fd = anfdmax; fd--; )	1019	for (fd = anfdmax; fd--; )
932	if (anfds [fd].events)	1020	if (anfds [fd].events)
933	{	1021	{
934	fd_kill (EV_A_ fd);	1022	fd_kill (EV_A_ fd);
935	return;	1023	break;
936	}	1024	}
937	}	1025	}
938		1026
939	/* usually called after fork if backend needs to re-arm all fds from scratch */	1027	/* usually called after fork if backend needs to re-arm all fds from scratch */
940	static void noinline	1028	static void noinline
…		…
947	{	1035	{
948	anfds [fd].events = 0;	1036	anfds [fd].events = 0;
949	anfds [fd].emask = 0;	1037	anfds [fd].emask = 0;
950	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);	1038	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
951	}	1039	}
		1040	}
		1041
		1042	/* used to prepare libev internal fd's */
		1043	/* this is not fork-safe */
		1044	inline_speed void
		1045	fd_intern (int fd)
		1046	{
		1047	#ifdef _WIN32
		1048	unsigned long arg = 1;
		1049	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1050	#else
		1051	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1052	fcntl (fd, F_SETFL, O_NONBLOCK);
		1053	#endif
952	}	1054	}
953		1055
954	/*****************************************************************************/	1056	/*****************************************************************************/
955		1057
956	/*	1058	/*
…		…
1030		1132
1031	for (;;)	1133	for (;;)
1032	{	1134	{
1033	int c = k << 1;	1135	int c = k << 1;
1034		1136
1035	if (c > N + HEAP0 - 1)	1137	if (c >= N + HEAP0)
1036	break;	1138	break;
1037		1139
1038	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1140	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1039	? 1 : 0;	1141	? 1 : 0;
1040		1142
…		…
1076		1178
1077	/* move an element suitably so it is in a correct place */	1179	/* move an element suitably so it is in a correct place */
1078	inline_size void	1180	inline_size void
1079	adjustheap (ANHE *heap, int N, int k)	1181	adjustheap (ANHE *heap, int N, int k)
1080	{	1182	{
1081	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1183	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1082	upheap (heap, k);	1184	upheap (heap, k);
1083	else	1185	else
1084	downheap (heap, N, k);	1186	downheap (heap, N, k);
1085	}	1187	}
1086		1188
…		…
1099	/*****************************************************************************/	1201	/*****************************************************************************/
1100		1202
1101	/* associate signal watchers to a signal signal */	1203	/* associate signal watchers to a signal signal */
1102	typedef struct	1204	typedef struct
1103	{	1205	{
		1206	EV_ATOMIC_T pending;
		1207	#if EV_MULTIPLICITY
		1208	EV_P;
		1209	#endif
1104	WL head;	1210	WL head;
1105	EV_ATOMIC_T gotsig;
1106	} ANSIG;	1211	} ANSIG;
1107		1212
1108	static ANSIG *signals;	1213	static ANSIG signals [EV_NSIG - 1];
1109	static int signalmax;
1110
1111	static EV_ATOMIC_T gotsig;
1112		1214
1113	/*****************************************************************************/	1215	/*****************************************************************************/
1114		1216
1115	/* used to prepare libev internal fd's */	1217	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1116	/* this is not fork-safe */
1117	inline_speed void
1118	fd_intern (int fd)
1119	{
1120	#ifdef _WIN32
1121	unsigned long arg = 1;
1122	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1123	#else
1124	fcntl (fd, F_SETFD, FD_CLOEXEC);
1125	fcntl (fd, F_SETFL, O_NONBLOCK);
1126	#endif
1127	}
1128		1218
1129	static void noinline	1219	static void noinline
1130	evpipe_init (EV_P)	1220	evpipe_init (EV_P)
1131	{	1221	{
1132	if (!ev_is_active (&pipe_w))	1222	if (!ev_is_active (&pipe_w))
1133	{	1223	{
1134	#if EV_USE_EVENTFD	1224	# if EV_USE_EVENTFD
1135	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1225	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1136	if (evfd < 0 && errno == EINVAL)	1226	if (evfd < 0 && errno == EINVAL)
1137	evfd = eventfd (0, 0);	1227	evfd = eventfd (0, 0);
1138		1228
1139	if (evfd >= 0)	1229	if (evfd >= 0)
…		…
1141	evpipe [0] = -1;	1231	evpipe [0] = -1;
1142	fd_intern (evfd); /* doing it twice doesn't hurt */	1232	fd_intern (evfd); /* doing it twice doesn't hurt */
1143	ev_io_set (&pipe_w, evfd, EV_READ);	1233	ev_io_set (&pipe_w, evfd, EV_READ);
1144	}	1234	}
1145	else	1235	else
1146	#endif	1236	# endif
1147	{	1237	{
1148	while (pipe (evpipe))	1238	while (pipe (evpipe))
1149	ev_syserr ("(libev) error creating signal/async pipe");	1239	ev_syserr ("(libev) error creating signal/async pipe");
1150		1240
1151	fd_intern (evpipe [0]);	1241	fd_intern (evpipe [0]);
…		…
1162	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1252	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1163	{	1253	{
1164	if (!*flag)	1254	if (!*flag)
1165	{	1255	{
1166	int old_errno = errno; /* save errno because write might clobber it */	1256	int old_errno = errno; /* save errno because write might clobber it */
		1257	char dummy;
1167		1258
1168	*flag = 1;	1259	*flag = 1;
1169		1260
1170	#if EV_USE_EVENTFD	1261	#if EV_USE_EVENTFD
1171	if (evfd >= 0)	1262	if (evfd >= 0)
…		…
1173	uint64_t counter = 1;	1264	uint64_t counter = 1;
1174	write (evfd, &counter, sizeof (uint64_t));	1265	write (evfd, &counter, sizeof (uint64_t));
1175	}	1266	}
1176	else	1267	else
1177	#endif	1268	#endif
1178	write (evpipe [1], &old_errno, 1);	1269	write (evpipe [1], &dummy, 1);
1179		1270
1180	errno = old_errno;	1271	errno = old_errno;
1181	}	1272	}
1182	}	1273	}
1183		1274
1184	/* called whenever the libev signal pipe */	1275	/* called whenever the libev signal pipe */
1185	/* got some events (signal, async) */	1276	/* got some events (signal, async) */
1186	static void	1277	static void
1187	pipecb (EV_P_ ev_io *iow, int revents)	1278	pipecb (EV_P_ ev_io *iow, int revents)
1188	{	1279	{
		1280	int i;
		1281
1189	#if EV_USE_EVENTFD	1282	#if EV_USE_EVENTFD
1190	if (evfd >= 0)	1283	if (evfd >= 0)
1191	{	1284	{
1192	uint64_t counter;	1285	uint64_t counter;
1193	read (evfd, &counter, sizeof (uint64_t));	1286	read (evfd, &counter, sizeof (uint64_t));
…		…
1197	{	1290	{
1198	char dummy;	1291	char dummy;
1199	read (evpipe [0], &dummy, 1);	1292	read (evpipe [0], &dummy, 1);
1200	}	1293	}
1201		1294
1202	if (gotsig && ev_is_default_loop (EV_A))	1295	if (sig_pending)
1203	{	1296	{
1204	int signum;	1297	sig_pending = 0;
1205	gotsig = 0;
1206		1298
1207	for (signum = signalmax; signum--; )	1299	for (i = EV_NSIG - 1; i--; )
1208	if (signals [signum].gotsig)	1300	if (expect_false (signals [i].pending))
1209	ev_feed_signal_event (EV_A_ signum + 1);	1301	ev_feed_signal_event (EV_A_ i + 1);
1210	}	1302	}
1211		1303
1212	#if EV_ASYNC_ENABLE	1304	#if EV_ASYNC_ENABLE
1213	if (gotasync)	1305	if (async_pending)
1214	{	1306	{
1215	int i;	1307	async_pending = 0;
1216	gotasync = 0;
1217		1308
1218	for (i = asynccnt; i--; )	1309	for (i = asynccnt; i--; )
1219	if (asyncs [i]->sent)	1310	if (asyncs [i]->sent)
1220	{	1311	{
1221	asyncs [i]->sent = 0;	1312	asyncs [i]->sent = 0;
…		…
1229		1320
1230	static void	1321	static void
1231	ev_sighandler (int signum)	1322	ev_sighandler (int signum)
1232	{	1323	{
1233	#if EV_MULTIPLICITY	1324	#if EV_MULTIPLICITY
1234	struct ev_loop *loop = &default_loop_struct;	1325	EV_P = signals [signum - 1].loop;
1235	#endif	1326	#endif
1236		1327
1237	#if _WIN32	1328	#ifdef _WIN32
1238	signal (signum, ev_sighandler);	1329	signal (signum, ev_sighandler);
1239	#endif	1330	#endif
1240		1331
1241	signals [signum - 1].gotsig = 1;	1332	signals [signum - 1].pending = 1;
1242	evpipe_write (EV_A_ &gotsig);	1333	evpipe_write (EV_A_ &sig_pending);
1243	}	1334	}
1244		1335
1245	void noinline	1336	void noinline
1246	ev_feed_signal_event (EV_P_ int signum)	1337	ev_feed_signal_event (EV_P_ int signum)
1247	{	1338	{
1248	WL w;	1339	WL w;
1249		1340
		1341	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1342	return;
		1343
		1344	--signum;
		1345
1250	#if EV_MULTIPLICITY	1346	#if EV_MULTIPLICITY
1251	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1347	/* it is permissible to try to feed a signal to the wrong loop */
1252	#endif	1348	/* or, likely more useful, feeding a signal nobody is waiting for */
1253		1349
1254	--signum;	1350	if (expect_false (signals [signum].loop != EV_A))
1255
1256	if (signum < 0 || signum >= signalmax)
1257	return;	1351	return;
		1352	#endif
1258		1353
1259	signals [signum].gotsig = 0;	1354	signals [signum].pending = 0;
1260		1355
1261	for (w = signals [signum].head; w; w = w->next)	1356	for (w = signals [signum].head; w; w = w->next)
1262	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1357	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1263	}	1358	}
1264		1359
1265	#if EV_USE_SIGNALFD	1360	#if EV_USE_SIGNALFD
1266	static void	1361	static void
1267	sigfdcb (EV_P_ ev_io *iow, int revents)	1362	sigfdcb (EV_P_ ev_io *iow, int revents)
1268	{	1363	{
1269	struct signalfd_siginfo si[4], *sip;	1364	struct signalfd_siginfo si[2], *sip; /* these structs are big */
1270		1365
1271	for (;;)	1366	for (;;)
1272	{	1367	{
1273	ssize_t res = read (sigfd, si, sizeof (si));	1368	ssize_t res = read (sigfd, si, sizeof (si));
1274		1369
…		…
1280	break;	1375	break;
1281	}	1376	}
1282	}	1377	}
1283	#endif	1378	#endif
1284		1379
		1380	#endif
		1381
1285	/*****************************************************************************/	1382	/*****************************************************************************/
1286		1383
		1384	#if EV_CHILD_ENABLE
1287	static WL childs [EV_PID_HASHSIZE];	1385	static WL childs [EV_PID_HASHSIZE];
1288
1289	#ifndef _WIN32
1290		1386
1291	static ev_signal childev;	1387	static ev_signal childev;
1292		1388
1293	#ifndef WIFCONTINUED	1389	#ifndef WIFCONTINUED
1294	# define WIFCONTINUED(status) 0	1390	# define WIFCONTINUED(status) 0
…		…
1299	child_reap (EV_P_ int chain, int pid, int status)	1395	child_reap (EV_P_ int chain, int pid, int status)
1300	{	1396	{
1301	ev_child *w;	1397	ev_child *w;
1302	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1398	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1303		1399
1304	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1400	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1305	{	1401	{
1306	if ((w->pid == pid || !w->pid)	1402	if ((w->pid == pid || !w->pid)
1307	&& (!traced || (w->flags & 1)))	1403	&& (!traced || (w->flags & 1)))
1308	{	1404	{
1309	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1405	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
…		…
1334	/* make sure we are called again until all children have been reaped */	1430	/* make sure we are called again until all children have been reaped */
1335	/* we need to do it this way so that the callback gets called before we continue */	1431	/* we need to do it this way so that the callback gets called before we continue */
1336	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1432	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1337		1433
1338	child_reap (EV_A_ pid, pid, status);	1434	child_reap (EV_A_ pid, pid, status);
1339	if (EV_PID_HASHSIZE > 1)	1435	if ((EV_PID_HASHSIZE) > 1)
1340	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1436	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1341	}	1437	}
1342		1438
1343	#endif	1439	#endif
1344		1440
…		…
1433	ev_backend (EV_P)	1529	ev_backend (EV_P)
1434	{	1530	{
1435	return backend;	1531	return backend;
1436	}	1532	}
1437		1533
1438	#if EV_MINIMAL < 2	1534	#if EV_FEATURE_API
1439	unsigned int	1535	unsigned int
1440	ev_loop_count (EV_P)	1536	ev_iteration (EV_P)
1441	{	1537	{
1442	return loop_count;	1538	return loop_count;
1443	}	1539	}
1444		1540
1445	unsigned int	1541	unsigned int
1446	ev_loop_depth (EV_P)	1542	ev_depth (EV_P)
1447	{	1543	{
1448	return loop_depth;	1544	return loop_depth;
1449	}	1545	}
1450		1546
1451	void	1547	void
…		…
1508	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1604	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1509	have_monotonic = 1;	1605	have_monotonic = 1;
1510	}	1606	}
1511	#endif	1607	#endif
1512		1608
		1609	/* pid check not overridable via env */
		1610	#ifndef _WIN32
		1611	if (flags & EVFLAG_FORKCHECK)
		1612	curpid = getpid ();
		1613	#endif
		1614
		1615	if (!(flags & EVFLAG_NOENV)
		1616	&& !enable_secure ()
		1617	&& getenv ("LIBEV_FLAGS"))
		1618	flags = atoi (getenv ("LIBEV_FLAGS"));
		1619
1513	ev_rt_now = ev_time ();	1620	ev_rt_now = ev_time ();
1514	mn_now = get_clock ();	1621	mn_now = get_clock ();
1515	now_floor = mn_now;	1622	now_floor = mn_now;
1516	rtmn_diff = ev_rt_now - mn_now;	1623	rtmn_diff = ev_rt_now - mn_now;
1517	#if EV_MINIMAL < 2	1624	#if EV_FEATURE_API
1518	invoke_cb = ev_invoke_pending;	1625	invoke_cb = ev_invoke_pending;
1519	#endif	1626	#endif
1520		1627
1521	io_blocktime = 0.;	1628	io_blocktime = 0.;
1522	timeout_blocktime = 0.;	1629	timeout_blocktime = 0.;
1523	backend = 0;	1630	backend = 0;
1524	backend_fd = -1;	1631	backend_fd = -1;
1525	gotasync = 0;	1632	sig_pending = 0;
		1633	#if EV_ASYNC_ENABLE
		1634	async_pending = 0;
		1635	#endif
1526	#if EV_USE_INOTIFY	1636	#if EV_USE_INOTIFY
1527	fs_fd = -2;	1637	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1528	#endif	1638	#endif
1529	#if EV_USE_SIGNALFD	1639	#if EV_USE_SIGNALFD
1530	sigfd = -2;	1640	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1531	#endif	1641	#endif
1532
1533	/* pid check not overridable via env */
1534	#ifndef _WIN32
1535	if (flags & EVFLAG_FORKCHECK)
1536	curpid = getpid ();
1537	#endif
1538
1539	if (!(flags & EVFLAG_NOENV)
1540	&& !enable_secure ()
1541	&& getenv ("LIBEV_FLAGS"))
1542	flags = atoi (getenv ("LIBEV_FLAGS"));
1543		1642
1544	if (!(flags & 0x0000ffffU))	1643	if (!(flags & 0x0000ffffU))
1545	flags |= ev_recommended_backends ();	1644	flags |= ev_recommended_backends ();
1546		1645
1547	#if EV_USE_PORT	1646	#if EV_USE_PORT
…		…
1560	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1659	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1561	#endif	1660	#endif
1562		1661
1563	ev_prepare_init (&pending_w, pendingcb);	1662	ev_prepare_init (&pending_w, pendingcb);
1564		1663
		1664	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1565	ev_init (&pipe_w, pipecb);	1665	ev_init (&pipe_w, pipecb);
1566	ev_set_priority (&pipe_w, EV_MAXPRI);	1666	ev_set_priority (&pipe_w, EV_MAXPRI);
		1667	#endif
1567	}	1668	}
1568	}	1669	}
1569		1670
1570	/* free up a loop structure */	1671	/* free up a loop structure */
1571	static void noinline	1672	static void noinline
…		…
1583	close (evfd);	1684	close (evfd);
1584	#endif	1685	#endif
1585		1686
1586	if (evpipe [0] >= 0)	1687	if (evpipe [0] >= 0)
1587	{	1688	{
1588	close (evpipe [0]);	1689	EV_WIN32_CLOSE_FD (evpipe [0]);
1589	close (evpipe [1]);	1690	EV_WIN32_CLOSE_FD (evpipe [1]);
1590	}	1691	}
1591	}	1692	}
1592		1693
1593	#if EV_USE_SIGNALFD	1694	#if EV_USE_SIGNALFD
1594	if (ev_is_active (&sigfd_w))	1695	if (ev_is_active (&sigfd_w))
1595	{
1596	/*ev_ref (EV_A);*/
1597	/*ev_io_stop (EV_A_ &sigfd_w);*/
1598
1599	close (sigfd);	1696	close (sigfd);
1600	}
1601	#endif	1697	#endif
1602		1698
1603	#if EV_USE_INOTIFY	1699	#if EV_USE_INOTIFY
1604	if (fs_fd >= 0)	1700	if (fs_fd >= 0)
1605	close (fs_fd);	1701	close (fs_fd);
…		…
1630	#if EV_IDLE_ENABLE	1726	#if EV_IDLE_ENABLE
1631	array_free (idle, [i]);	1727	array_free (idle, [i]);
1632	#endif	1728	#endif
1633	}	1729	}
1634		1730
1635	ev_free (anfds); anfdmax = 0;	1731	ev_free (anfds); anfds = 0; anfdmax = 0;
1636		1732
1637	/* have to use the microsoft-never-gets-it-right macro */	1733	/* have to use the microsoft-never-gets-it-right macro */
1638	array_free (rfeed, EMPTY);	1734	array_free (rfeed, EMPTY);
1639	array_free (fdchange, EMPTY);	1735	array_free (fdchange, EMPTY);
1640	array_free (timer, EMPTY);	1736	array_free (timer, EMPTY);
…		…
1675		1771
1676	if (ev_is_active (&pipe_w))	1772	if (ev_is_active (&pipe_w))
1677	{	1773	{
1678	/* this "locks" the handlers against writing to the pipe */	1774	/* this "locks" the handlers against writing to the pipe */
1679	/* while we modify the fd vars */	1775	/* while we modify the fd vars */
1680	gotsig = 1;	1776	sig_pending = 1;
1681	#if EV_ASYNC_ENABLE	1777	#if EV_ASYNC_ENABLE
1682	gotasync = 1;	1778	async_pending = 1;
1683	#endif	1779	#endif
1684		1780
1685	ev_ref (EV_A);	1781	ev_ref (EV_A);
1686	ev_io_stop (EV_A_ &pipe_w);	1782	ev_io_stop (EV_A_ &pipe_w);
1687		1783
…		…
1690	close (evfd);	1786	close (evfd);
1691	#endif	1787	#endif
1692		1788
1693	if (evpipe [0] >= 0)	1789	if (evpipe [0] >= 0)
1694	{	1790	{
1695	close (evpipe [0]);	1791	EV_WIN32_CLOSE_FD (evpipe [0]);
1696	close (evpipe [1]);	1792	EV_WIN32_CLOSE_FD (evpipe [1]);
1697	}	1793	}
1698		1794
		1795	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1699	evpipe_init (EV_A);	1796	evpipe_init (EV_A);
1700	/* now iterate over everything, in case we missed something */	1797	/* now iterate over everything, in case we missed something */
1701	pipecb (EV_A_ &pipe_w, EV_READ);	1798	pipecb (EV_A_ &pipe_w, EV_READ);
		1799	#endif
1702	}	1800	}
1703		1801
1704	postfork = 0;	1802	postfork = 0;
1705	}	1803	}
1706		1804
1707	#if EV_MULTIPLICITY	1805	#if EV_MULTIPLICITY
1708		1806
1709	struct ev_loop *	1807	struct ev_loop *
1710	ev_loop_new (unsigned int flags)	1808	ev_loop_new (unsigned int flags)
1711	{	1809	{
1712	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1810	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1713		1811
1714	memset (loop, 0, sizeof (struct ev_loop));	1812	memset (EV_A, 0, sizeof (struct ev_loop));
1715	loop_init (EV_A_ flags);	1813	loop_init (EV_A_ flags);
1716		1814
1717	if (ev_backend (EV_A))	1815	if (ev_backend (EV_A))
1718	return loop;	1816	return EV_A;
1719		1817
1720	return 0;	1818	return 0;
1721	}	1819	}
1722		1820
1723	void	1821	void
…		…
1768	verify_watcher (EV_A_ ws [cnt]);	1866	verify_watcher (EV_A_ ws [cnt]);
1769	}	1867	}
1770	}	1868	}
1771	#endif	1869	#endif
1772		1870
1773	#if EV_MINIMAL < 2	1871	#if EV_FEATURE_API
1774	void	1872	void
1775	ev_loop_verify (EV_P)	1873	ev_verify (EV_P)
1776	{	1874	{
1777	#if EV_VERIFY	1875	#if EV_VERIFY
1778	int i;	1876	int i;
1779	WL w;	1877	WL w;
1780		1878
…		…
1819	#if EV_ASYNC_ENABLE	1917	#if EV_ASYNC_ENABLE
1820	assert (asyncmax >= asynccnt);	1918	assert (asyncmax >= asynccnt);
1821	array_verify (EV_A_ (W *)asyncs, asynccnt);	1919	array_verify (EV_A_ (W *)asyncs, asynccnt);
1822	#endif	1920	#endif
1823		1921
		1922	#if EV_PREPARE_ENABLE
1824	assert (preparemax >= preparecnt);	1923	assert (preparemax >= preparecnt);
1825	array_verify (EV_A_ (W *)prepares, preparecnt);	1924	array_verify (EV_A_ (W *)prepares, preparecnt);
		1925	#endif
1826		1926
		1927	#if EV_CHECK_ENABLE
1827	assert (checkmax >= checkcnt);	1928	assert (checkmax >= checkcnt);
1828	array_verify (EV_A_ (W *)checks, checkcnt);	1929	array_verify (EV_A_ (W *)checks, checkcnt);
		1930	#endif
1829		1931
1830	# if 0	1932	# if 0
		1933	#if EV_CHILD_ENABLE
1831	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1934	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1832	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1935	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1936	#endif
1833	# endif	1937	# endif
1834	#endif	1938	#endif
1835	}	1939	}
1836	#endif	1940	#endif
1837		1941
…		…
1844	#endif	1948	#endif
1845	{	1949	{
1846	if (!ev_default_loop_ptr)	1950	if (!ev_default_loop_ptr)
1847	{	1951	{
1848	#if EV_MULTIPLICITY	1952	#if EV_MULTIPLICITY
1849	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1953	EV_P = ev_default_loop_ptr = &default_loop_struct;
1850	#else	1954	#else
1851	ev_default_loop_ptr = 1;	1955	ev_default_loop_ptr = 1;
1852	#endif	1956	#endif
1853		1957
1854	loop_init (EV_A_ flags);	1958	loop_init (EV_A_ flags);
1855		1959
1856	if (ev_backend (EV_A))	1960	if (ev_backend (EV_A))
1857	{	1961	{
1858	#ifndef _WIN32	1962	#if EV_CHILD_ENABLE
1859	ev_signal_init (&childev, childcb, SIGCHLD);	1963	ev_signal_init (&childev, childcb, SIGCHLD);
1860	ev_set_priority (&childev, EV_MAXPRI);	1964	ev_set_priority (&childev, EV_MAXPRI);
1861	ev_signal_start (EV_A_ &childev);	1965	ev_signal_start (EV_A_ &childev);
1862	ev_unref (EV_A); /* child watcher should not keep loop alive */	1966	ev_unref (EV_A); /* child watcher should not keep loop alive */
1863	#endif	1967	#endif
…		…
1871		1975
1872	void	1976	void
1873	ev_default_destroy (void)	1977	ev_default_destroy (void)
1874	{	1978	{
1875	#if EV_MULTIPLICITY	1979	#if EV_MULTIPLICITY
1876	struct ev_loop *loop = ev_default_loop_ptr;	1980	EV_P = ev_default_loop_ptr;
1877	#endif	1981	#endif
1878		1982
1879	ev_default_loop_ptr = 0;	1983	ev_default_loop_ptr = 0;
1880		1984
1881	#ifndef _WIN32	1985	#if EV_CHILD_ENABLE
1882	ev_ref (EV_A); /* child watcher */	1986	ev_ref (EV_A); /* child watcher */
1883	ev_signal_stop (EV_A_ &childev);	1987	ev_signal_stop (EV_A_ &childev);
1884	#endif	1988	#endif
1885		1989
1886	loop_destroy (EV_A);	1990	loop_destroy (EV_A);
…		…
1888		1992
1889	void	1993	void
1890	ev_default_fork (void)	1994	ev_default_fork (void)
1891	{	1995	{
1892	#if EV_MULTIPLICITY	1996	#if EV_MULTIPLICITY
1893	struct ev_loop *loop = ev_default_loop_ptr;	1997	EV_P = ev_default_loop_ptr;
1894	#endif	1998	#endif
1895		1999
1896	postfork = 1; /* must be in line with ev_loop_fork */	2000	postfork = 1; /* must be in line with ev_loop_fork */
1897	}	2001	}
1898		2002
…		…
2093	ANHE_at_cache (*he);	2197	ANHE_at_cache (*he);
2094	}	2198	}
2095	}	2199	}
2096		2200
2097	/* fetch new monotonic and realtime times from the kernel */	2201	/* fetch new monotonic and realtime times from the kernel */
2098	/* also detetc if there was a timejump, and act accordingly */	2202	/* also detect if there was a timejump, and act accordingly */
2099	inline_speed void	2203	inline_speed void
2100	time_update (EV_P_ ev_tstamp max_block)	2204	time_update (EV_P_ ev_tstamp max_block)
2101	{	2205	{
2102	#if EV_USE_MONOTONIC	2206	#if EV_USE_MONOTONIC
2103	if (expect_true (have_monotonic))	2207	if (expect_true (have_monotonic))
…		…
2163	}	2267	}
2164		2268
2165	void	2269	void
2166	ev_loop (EV_P_ int flags)	2270	ev_loop (EV_P_ int flags)
2167	{	2271	{
2168	#if EV_MINIMAL < 2	2272	#if EV_FEATURE_API
2169	++loop_depth;	2273	++loop_depth;
2170	#endif	2274	#endif
2171		2275
2172	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2276	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2173		2277
…		…
2176	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2280	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2177		2281
2178	do	2282	do
2179	{	2283	{
2180	#if EV_VERIFY >= 2	2284	#if EV_VERIFY >= 2
2181	ev_loop_verify (EV_A);	2285	ev_verify (EV_A);
2182	#endif	2286	#endif
2183		2287
2184	#ifndef _WIN32	2288	#ifndef _WIN32
2185	if (expect_false (curpid)) /* penalise the forking check even more */	2289	if (expect_false (curpid)) /* penalise the forking check even more */
2186	if (expect_false (getpid () != curpid))	2290	if (expect_false (getpid () != curpid))
…		…
2198	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2302	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2199	EV_INVOKE_PENDING;	2303	EV_INVOKE_PENDING;
2200	}	2304	}
2201	#endif	2305	#endif
2202		2306
		2307	#if EV_PREPARE_ENABLE
2203	/* queue prepare watchers (and execute them) */	2308	/* queue prepare watchers (and execute them) */
2204	if (expect_false (preparecnt))	2309	if (expect_false (preparecnt))
2205	{	2310	{
2206	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2311	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2207	EV_INVOKE_PENDING;	2312	EV_INVOKE_PENDING;
2208	}	2313	}
		2314	#endif
2209		2315
2210	if (expect_false (loop_done))	2316	if (expect_false (loop_done))
2211	break;	2317	break;
2212		2318
2213	/* we might have forked, so reify kernel state if necessary */	2319	/* we might have forked, so reify kernel state if necessary */
…		…
2264	waittime -= sleeptime;	2370	waittime -= sleeptime;
2265	}	2371	}
2266	}	2372	}
2267	}	2373	}
2268		2374
2269	#if EV_MINIMAL < 2	2375	#if EV_FEATURE_API
2270	++loop_count;	2376	++loop_count;
2271	#endif	2377	#endif
2272	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2378	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2273	backend_poll (EV_A_ waittime);	2379	backend_poll (EV_A_ waittime);
2274	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2380	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
…		…
2286	#if EV_IDLE_ENABLE	2392	#if EV_IDLE_ENABLE
2287	/* queue idle watchers unless other events are pending */	2393	/* queue idle watchers unless other events are pending */
2288	idle_reify (EV_A);	2394	idle_reify (EV_A);
2289	#endif	2395	#endif
2290		2396
		2397	#if EV_CHECK_ENABLE
2291	/* queue check watchers, to be executed first */	2398	/* queue check watchers, to be executed first */
2292	if (expect_false (checkcnt))	2399	if (expect_false (checkcnt))
2293	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2400	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2401	#endif
2294		2402
2295	EV_INVOKE_PENDING;	2403	EV_INVOKE_PENDING;
2296	}	2404	}
2297	while (expect_true (	2405	while (expect_true (
2298	activecnt	2406	activecnt
…		…
2301	));	2409	));
2302		2410
2303	if (loop_done == EVUNLOOP_ONE)	2411	if (loop_done == EVUNLOOP_ONE)
2304	loop_done = EVUNLOOP_CANCEL;	2412	loop_done = EVUNLOOP_CANCEL;
2305		2413
2306	#if EV_MINIMAL < 2	2414	#if EV_FEATURE_API
2307	--loop_depth;	2415	--loop_depth;
2308	#endif	2416	#endif
2309	}	2417	}
2310		2418
2311	void	2419	void
…		…
2364	inline_size void	2472	inline_size void
2365	wlist_del (WL *head, WL elem)	2473	wlist_del (WL *head, WL elem)
2366	{	2474	{
2367	while (*head)	2475	while (*head)
2368	{	2476	{
2369	if (*head == elem)	2477	if (expect_true (*head == elem))
2370	{	2478	{
2371	*head = elem->next;	2479	*head = elem->next;
2372	return;	2480	break;
2373	}	2481	}
2374		2482
2375	head = &(*head)->next;	2483	head = &(*head)->next;
2376	}	2484	}
2377	}	2485	}
…		…
2437		2545
2438	if (expect_false (ev_is_active (w)))	2546	if (expect_false (ev_is_active (w)))
2439	return;	2547	return;
2440		2548
2441	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2549	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2442	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2550	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2443		2551
2444	EV_FREQUENT_CHECK;	2552	EV_FREQUENT_CHECK;
2445		2553
2446	ev_start (EV_A_ (W)w, 1);	2554	ev_start (EV_A_ (W)w, 1);
2447	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2555	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2517	timers [active] = timers [timercnt + HEAP0];	2625	timers [active] = timers [timercnt + HEAP0];
2518	adjustheap (timers, timercnt, active);	2626	adjustheap (timers, timercnt, active);
2519	}	2627	}
2520	}	2628	}
2521		2629
2522	EV_FREQUENT_CHECK;
2523
2524	ev_at (w) -= mn_now;	2630	ev_at (w) -= mn_now;
2525		2631
2526	ev_stop (EV_A_ (W)w);	2632	ev_stop (EV_A_ (W)w);
		2633
		2634	EV_FREQUENT_CHECK;
2527	}	2635	}
2528		2636
2529	void noinline	2637	void noinline
2530	ev_timer_again (EV_P_ ev_timer *w)	2638	ev_timer_again (EV_P_ ev_timer *w)
2531	{	2639	{
…		…
2610	periodics [active] = periodics [periodiccnt + HEAP0];	2718	periodics [active] = periodics [periodiccnt + HEAP0];
2611	adjustheap (periodics, periodiccnt, active);	2719	adjustheap (periodics, periodiccnt, active);
2612	}	2720	}
2613	}	2721	}
2614		2722
2615	EV_FREQUENT_CHECK;
2616
2617	ev_stop (EV_A_ (W)w);	2723	ev_stop (EV_A_ (W)w);
		2724
		2725	EV_FREQUENT_CHECK;
2618	}	2726	}
2619		2727
2620	void noinline	2728	void noinline
2621	ev_periodic_again (EV_P_ ev_periodic *w)	2729	ev_periodic_again (EV_P_ ev_periodic *w)
2622	{	2730	{
…		…
2628		2736
2629	#ifndef SA_RESTART	2737	#ifndef SA_RESTART
2630	# define SA_RESTART 0	2738	# define SA_RESTART 0
2631	#endif	2739	#endif
2632		2740
		2741	#if EV_SIGNAL_ENABLE
		2742
2633	void noinline	2743	void noinline
2634	ev_signal_start (EV_P_ ev_signal *w)	2744	ev_signal_start (EV_P_ ev_signal *w)
2635	{	2745	{
2636	#if EV_MULTIPLICITY
2637	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2638	#endif
2639	if (expect_false (ev_is_active (w)))	2746	if (expect_false (ev_is_active (w)))
2640	return;	2747	return;
2641		2748
2642	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2749	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
		2750
		2751	#if EV_MULTIPLICITY
		2752	assert (("libev: a signal must not be attached to two different loops",
		2753	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
		2754
		2755	signals [w->signum - 1].loop = EV_A;
		2756	#endif
2643		2757
2644	EV_FREQUENT_CHECK;	2758	EV_FREQUENT_CHECK;
2645		2759
2646	#if EV_USE_SIGNALFD	2760	#if EV_USE_SIGNALFD
2647	if (sigfd == -2)	2761	if (sigfd == -2)
…		…
2669	sigaddset (&sigfd_set, w->signum);	2783	sigaddset (&sigfd_set, w->signum);
2670	sigprocmask (SIG_BLOCK, &sigfd_set, 0);	2784	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2671		2785
2672	signalfd (sigfd, &sigfd_set, 0);	2786	signalfd (sigfd, &sigfd_set, 0);
2673	}	2787	}
2674	else
2675	#endif	2788	#endif
2676	evpipe_init (EV_A);
2677
2678	{
2679	#ifndef _WIN32
2680	sigset_t full, prev;
2681	sigfillset (&full);
2682	sigprocmask (SIG_SETMASK, &full, &prev);
2683	#endif
2684
2685	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2686
2687	#ifndef _WIN32
2688	if (sigfd < 0)/*TODO*/
2689	sigdelset (&prev, w->signum);
2690	sigprocmask (SIG_SETMASK, &prev, 0);
2691	#endif
2692	}
2693		2789
2694	ev_start (EV_A_ (W)w, 1);	2790	ev_start (EV_A_ (W)w, 1);
2695	wlist_add (&signals [w->signum - 1].head, (WL)w);	2791	wlist_add (&signals [w->signum - 1].head, (WL)w);
2696		2792
2697	if (!((WL)w)->next)	2793	if (!((WL)w)->next)
		2794	# if EV_USE_SIGNALFD
		2795	if (sigfd < 0) /*TODO*/
		2796	# endif
2698	{	2797	{
2699	#if _WIN32	2798	# ifdef _WIN32
		2799	evpipe_init (EV_A);
		2800
2700	signal (w->signum, ev_sighandler);	2801	signal (w->signum, ev_sighandler);
2701	#else	2802	# else
2702	if (sigfd < 0) /*TODO*/
2703	{
2704	struct sigaction sa = { };	2803	struct sigaction sa;
		2804
		2805	evpipe_init (EV_A);
		2806
2705	sa.sa_handler = ev_sighandler;	2807	sa.sa_handler = ev_sighandler;
2706	sigfillset (&sa.sa_mask);	2808	sigfillset (&sa.sa_mask);
2707	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2809	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2708	sigaction (w->signum, &sa, 0);	2810	sigaction (w->signum, &sa, 0);
		2811
		2812	sigemptyset (&sa.sa_mask);
		2813	sigaddset (&sa.sa_mask, w->signum);
		2814	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		2815	#endif
2709	}	2816	}
2710	#endif
2711	}
2712		2817
2713	EV_FREQUENT_CHECK;	2818	EV_FREQUENT_CHECK;
2714	}	2819	}
2715		2820
2716	void noinline	2821	void noinline
…		…
2724		2829
2725	wlist_del (&signals [w->signum - 1].head, (WL)w);	2830	wlist_del (&signals [w->signum - 1].head, (WL)w);
2726	ev_stop (EV_A_ (W)w);	2831	ev_stop (EV_A_ (W)w);
2727		2832
2728	if (!signals [w->signum - 1].head)	2833	if (!signals [w->signum - 1].head)
		2834	{
		2835	#if EV_MULTIPLICITY
		2836	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2837	#endif
2729	#if EV_USE_SIGNALFD	2838	#if EV_USE_SIGNALFD
2730	if (sigfd >= 0)	2839	if (sigfd >= 0)
2731	{	2840	{
2732	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2841	sigset_t ss;
		2842
		2843	sigemptyset (&ss);
		2844	sigaddset (&ss, w->signum);
2733	sigdelset (&sigfd_set, w->signum);	2845	sigdelset (&sigfd_set, w->signum);
		2846
2734	signalfd (sigfd, &sigfd_set, 0);	2847	signalfd (sigfd, &sigfd_set, 0);
2735	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2848	sigprocmask (SIG_UNBLOCK, &ss, 0);
2736	/*TODO: maybe unblock signal? */
2737	}	2849	}
2738	else	2850	else
2739	#endif	2851	#endif
2740	signal (w->signum, SIG_DFL);	2852	signal (w->signum, SIG_DFL);
		2853	}
2741		2854
2742	EV_FREQUENT_CHECK;	2855	EV_FREQUENT_CHECK;
2743	}	2856	}
		2857
		2858	#endif
		2859
		2860	#if EV_CHILD_ENABLE
2744		2861
2745	void	2862	void
2746	ev_child_start (EV_P_ ev_child *w)	2863	ev_child_start (EV_P_ ev_child *w)
2747	{	2864	{
2748	#if EV_MULTIPLICITY	2865	#if EV_MULTIPLICITY
…		…
2752	return;	2869	return;
2753		2870
2754	EV_FREQUENT_CHECK;	2871	EV_FREQUENT_CHECK;
2755		2872
2756	ev_start (EV_A_ (W)w, 1);	2873	ev_start (EV_A_ (W)w, 1);
2757	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2874	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2758		2875
2759	EV_FREQUENT_CHECK;	2876	EV_FREQUENT_CHECK;
2760	}	2877	}
2761		2878
2762	void	2879	void
…		…
2766	if (expect_false (!ev_is_active (w)))	2883	if (expect_false (!ev_is_active (w)))
2767	return;	2884	return;
2768		2885
2769	EV_FREQUENT_CHECK;	2886	EV_FREQUENT_CHECK;
2770		2887
2771	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2888	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2772	ev_stop (EV_A_ (W)w);	2889	ev_stop (EV_A_ (W)w);
2773		2890
2774	EV_FREQUENT_CHECK;	2891	EV_FREQUENT_CHECK;
2775	}	2892	}
		2893
		2894	#endif
2776		2895
2777	#if EV_STAT_ENABLE	2896	#if EV_STAT_ENABLE
2778		2897
2779	# ifdef _WIN32	2898	# ifdef _WIN32
2780	# undef lstat	2899	# undef lstat
…		…
2786	#define MIN_STAT_INTERVAL 0.1074891	2905	#define MIN_STAT_INTERVAL 0.1074891
2787		2906
2788	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2907	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2789		2908
2790	#if EV_USE_INOTIFY	2909	#if EV_USE_INOTIFY
2791	# define EV_INOTIFY_BUFSIZE 8192	2910
		2911	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2912	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2792		2913
2793	static void noinline	2914	static void noinline
2794	infy_add (EV_P_ ev_stat *w)	2915	infy_add (EV_P_ ev_stat *w)
2795	{	2916	{
2796	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);	2917	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);
2797		2918
2798	if (w->wd < 0)	2919	if (w->wd >= 0)
		2920	{
		2921	struct statfs sfs;
		2922
		2923	/* now local changes will be tracked by inotify, but remote changes won't */
		2924	/* unless the filesystem is known to be local, we therefore still poll */
		2925	/* also do poll on <2.6.25, but with normal frequency */
		2926
		2927	if (!fs_2625)
		2928	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2929	else if (!statfs (w->path, &sfs)
		2930	&& (sfs.f_type == 0x1373 /* devfs */
		2931	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2932	|| sfs.f_type == 0x3153464a /* jfs */
		2933	|| sfs.f_type == 0x52654973 /* reiser3 */
		2934	|| sfs.f_type == 0x01021994 /* tempfs */
		2935	|| sfs.f_type == 0x58465342 /* xfs */))
		2936	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2937	else
		2938	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2799	{	2939	}
		2940	else
		2941	{
		2942	/* can't use inotify, continue to stat */
2800	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2943	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2801	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2802		2944
2803	/* monitor some parent directory for speedup hints */	2945	/* if path is not there, monitor some parent directory for speedup hints */
2804	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2946	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2805	/* but an efficiency issue only */	2947	/* but an efficiency issue only */
2806	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2948	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2807	{	2949	{
2808	char path [4096];	2950	char path [4096];
…		…
2824	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2966	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2825	}	2967	}
2826	}	2968	}
2827		2969
2828	if (w->wd >= 0)	2970	if (w->wd >= 0)
2829	{
2830	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2971	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2831		2972
2832	/* now local changes will be tracked by inotify, but remote changes won't */	2973	/* now re-arm timer, if required */
2833	/* unless the filesystem it known to be local, we therefore still poll */	2974	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2834	/* also do poll on <2.6.25, but with normal frequency */
2835	struct statfs sfs;
2836
2837	if (fs_2625 && !statfs (w->path, &sfs))
2838	if (sfs.f_type == 0x1373 /* devfs */
2839	|| sfs.f_type == 0xEF53 /* ext2/3 */
2840	|| sfs.f_type == 0x3153464a /* jfs */
2841	|| sfs.f_type == 0x52654973 /* reiser3 */
2842	|| sfs.f_type == 0x01021994 /* tempfs */
2843	|| sfs.f_type == 0x58465342 /* xfs */)
2844	return;
2845
2846	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2847	ev_timer_again (EV_A_ &w->timer);	2975	ev_timer_again (EV_A_ &w->timer);
2848	}	2976	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2849	}	2977	}
2850		2978
2851	static void noinline	2979	static void noinline
2852	infy_del (EV_P_ ev_stat *w)	2980	infy_del (EV_P_ ev_stat *w)
2853	{	2981	{
…		…
2856		2984
2857	if (wd < 0)	2985	if (wd < 0)
2858	return;	2986	return;
2859		2987
2860	w->wd = -2;	2988	w->wd = -2;
2861	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	2989	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2862	wlist_del (&fs_hash [slot].head, (WL)w);	2990	wlist_del (&fs_hash [slot].head, (WL)w);
2863		2991
2864	/* remove this watcher, if others are watching it, they will rearm */	2992	/* remove this watcher, if others are watching it, they will rearm */
2865	inotify_rm_watch (fs_fd, wd);	2993	inotify_rm_watch (fs_fd, wd);
2866	}	2994	}
…		…
2868	static void noinline	2996	static void noinline
2869	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2997	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2870	{	2998	{
2871	if (slot < 0)	2999	if (slot < 0)
2872	/* overflow, need to check for all hash slots */	3000	/* overflow, need to check for all hash slots */
2873	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3001	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2874	infy_wd (EV_A_ slot, wd, ev);	3002	infy_wd (EV_A_ slot, wd, ev);
2875	else	3003	else
2876	{	3004	{
2877	WL w_;	3005	WL w_;
2878		3006
2879	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3007	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2880	{	3008	{
2881	ev_stat *w = (ev_stat *)w_;	3009	ev_stat *w = (ev_stat *)w_;
2882	w_ = w_->next; /* lets us remove this watcher and all before it */	3010	w_ = w_->next; /* lets us remove this watcher and all before it */
2883		3011
2884	if (w->wd == wd || wd == -1)	3012	if (w->wd == wd || wd == -1)
2885	{	3013	{
2886	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3014	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2887	{	3015	{
2888	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3016	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2889	w->wd = -1;	3017	w->wd = -1;
2890	infy_add (EV_A_ w); /* re-add, no matter what */	3018	infy_add (EV_A_ w); /* re-add, no matter what */
2891	}	3019	}
2892		3020
2893	stat_timer_cb (EV_A_ &w->timer, 0);	3021	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2898		3026
2899	static void	3027	static void
2900	infy_cb (EV_P_ ev_io *w, int revents)	3028	infy_cb (EV_P_ ev_io *w, int revents)
2901	{	3029	{
2902	char buf [EV_INOTIFY_BUFSIZE];	3030	char buf [EV_INOTIFY_BUFSIZE];
2903	struct inotify_event *ev = (struct inotify_event *)buf;
2904	int ofs;	3031	int ofs;
2905	int len = read (fs_fd, buf, sizeof (buf));	3032	int len = read (fs_fd, buf, sizeof (buf));
2906		3033
2907	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3034	for (ofs = 0; ofs < len; )
		3035	{
		3036	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2908	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3037	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3038	ofs += sizeof (struct inotify_event) + ev->len;
		3039	}
		3040	}
		3041
		3042	inline_size unsigned int
		3043	ev_linux_version (void)
		3044	{
		3045	struct utsname buf;
		3046	unsigned int v;
		3047	int i;
		3048	char *p = buf.release;
		3049
		3050	if (uname (&buf))
		3051	return 0;
		3052
		3053	for (i = 3+1; --i; )
		3054	{
		3055	unsigned int c = 0;
		3056
		3057	for (;;)
		3058	{
		3059	if (*p >= '0' && *p <= '9')
		3060	c = c * 10 + *p++ - '0';
		3061	else
		3062	{
		3063	p += *p == '.';
		3064	break;
		3065	}
		3066	}
		3067
		3068	v = (v << 8) | c;
		3069	}
		3070
		3071	return v;
2909	}	3072	}
2910		3073
2911	inline_size void	3074	inline_size void
2912	check_2625 (EV_P)	3075	ev_check_2625 (EV_P)
2913	{	3076	{
2914	/* kernels < 2.6.25 are borked	3077	/* kernels < 2.6.25 are borked
2915	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3078	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2916	*/	3079	*/
2917	struct utsname buf;	3080	if (ev_linux_version () < 0x020619)
2918	int major, minor, micro;
2919
2920	if (uname (&buf))
2921	return;	3081	return;
2922		3082
2923	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2924	return;
2925
2926	if (major < 2
2927	|| (major == 2 && minor < 6)
2928	|| (major == 2 && minor == 6 && micro < 25))
2929	return;
2930
2931	fs_2625 = 1;	3083	fs_2625 = 1;
		3084	}
		3085
		3086	inline_size int
		3087	infy_newfd (void)
		3088	{
		3089	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3090	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3091	if (fd >= 0)
		3092	return fd;
		3093	#endif
		3094	return inotify_init ();
2932	}	3095	}
2933		3096
2934	inline_size void	3097	inline_size void
2935	infy_init (EV_P)	3098	infy_init (EV_P)
2936	{	3099	{
2937	if (fs_fd != -2)	3100	if (fs_fd != -2)
2938	return;	3101	return;
2939		3102
2940	fs_fd = -1;	3103	fs_fd = -1;
2941		3104
2942	check_2625 (EV_A);	3105	ev_check_2625 (EV_A);
2943		3106
2944	fs_fd = inotify_init ();	3107	fs_fd = infy_newfd ();
2945		3108
2946	if (fs_fd >= 0)	3109	if (fs_fd >= 0)
2947	{	3110	{
		3111	fd_intern (fs_fd);
2948	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3112	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2949	ev_set_priority (&fs_w, EV_MAXPRI);	3113	ev_set_priority (&fs_w, EV_MAXPRI);
2950	ev_io_start (EV_A_ &fs_w);	3114	ev_io_start (EV_A_ &fs_w);
		3115	ev_unref (EV_A);
2951	}	3116	}
2952	}	3117	}
2953		3118
2954	inline_size void	3119	inline_size void
2955	infy_fork (EV_P)	3120	infy_fork (EV_P)
…		…
2957	int slot;	3122	int slot;
2958		3123
2959	if (fs_fd < 0)	3124	if (fs_fd < 0)
2960	return;	3125	return;
2961		3126
		3127	ev_ref (EV_A);
		3128	ev_io_stop (EV_A_ &fs_w);
2962	close (fs_fd);	3129	close (fs_fd);
2963	fs_fd = inotify_init ();	3130	fs_fd = infy_newfd ();
2964		3131
		3132	if (fs_fd >= 0)
		3133	{
		3134	fd_intern (fs_fd);
		3135	ev_io_set (&fs_w, fs_fd, EV_READ);
		3136	ev_io_start (EV_A_ &fs_w);
		3137	ev_unref (EV_A);
		3138	}
		3139
2965	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3140	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2966	{	3141	{
2967	WL w_ = fs_hash [slot].head;	3142	WL w_ = fs_hash [slot].head;
2968	fs_hash [slot].head = 0;	3143	fs_hash [slot].head = 0;
2969		3144
2970	while (w_)	3145	while (w_)
…		…
2975	w->wd = -1;	3150	w->wd = -1;
2976		3151
2977	if (fs_fd >= 0)	3152	if (fs_fd >= 0)
2978	infy_add (EV_A_ w); /* re-add, no matter what */	3153	infy_add (EV_A_ w); /* re-add, no matter what */
2979	else	3154	else
		3155	{
		3156	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3157	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2980	ev_timer_again (EV_A_ &w->timer);	3158	ev_timer_again (EV_A_ &w->timer);
		3159	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3160	}
2981	}	3161	}
2982	}	3162	}
2983	}	3163	}
2984		3164
2985	#endif	3165	#endif
…		…
3002	static void noinline	3182	static void noinline
3003	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3183	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3004	{	3184	{
3005	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3185	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3006		3186
3007	/* we copy this here each the time so that */	3187	ev_statdata prev = w->attr;
3008	/* prev has the old value when the callback gets invoked */
3009	w->prev = w->attr;
3010	ev_stat_stat (EV_A_ w);	3188	ev_stat_stat (EV_A_ w);
3011		3189
3012	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3190	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3013	if (	3191	if (
3014	w->prev.st_dev != w->attr.st_dev	3192	prev.st_dev != w->attr.st_dev
3015	|| w->prev.st_ino != w->attr.st_ino	3193	|| prev.st_ino != w->attr.st_ino
3016	|| w->prev.st_mode != w->attr.st_mode	3194	|| prev.st_mode != w->attr.st_mode
3017	|| w->prev.st_nlink != w->attr.st_nlink	3195	|| prev.st_nlink != w->attr.st_nlink
3018	|| w->prev.st_uid != w->attr.st_uid	3196	|| prev.st_uid != w->attr.st_uid
3019	|| w->prev.st_gid != w->attr.st_gid	3197	|| prev.st_gid != w->attr.st_gid
3020	|| w->prev.st_rdev != w->attr.st_rdev	3198	|| prev.st_rdev != w->attr.st_rdev
3021	|| w->prev.st_size != w->attr.st_size	3199	|| prev.st_size != w->attr.st_size
3022	|| w->prev.st_atime != w->attr.st_atime	3200	|| prev.st_atime != w->attr.st_atime
3023	|| w->prev.st_mtime != w->attr.st_mtime	3201	|| prev.st_mtime != w->attr.st_mtime
3024	|| w->prev.st_ctime != w->attr.st_ctime	3202	|| prev.st_ctime != w->attr.st_ctime
3025	) {	3203	) {
		3204	/* we only update w->prev on actual differences */
		3205	/* in case we test more often than invoke the callback, */
		3206	/* to ensure that prev is always different to attr */
		3207	w->prev = prev;
		3208
3026	#if EV_USE_INOTIFY	3209	#if EV_USE_INOTIFY
3027	if (fs_fd >= 0)	3210	if (fs_fd >= 0)
3028	{	3211	{
3029	infy_del (EV_A_ w);	3212	infy_del (EV_A_ w);
3030	infy_add (EV_A_ w);	3213	infy_add (EV_A_ w);
…		…
3055		3238
3056	if (fs_fd >= 0)	3239	if (fs_fd >= 0)
3057	infy_add (EV_A_ w);	3240	infy_add (EV_A_ w);
3058	else	3241	else
3059	#endif	3242	#endif
		3243	{
3060	ev_timer_again (EV_A_ &w->timer);	3244	ev_timer_again (EV_A_ &w->timer);
		3245	ev_unref (EV_A);
		3246	}
3061		3247
3062	ev_start (EV_A_ (W)w, 1);	3248	ev_start (EV_A_ (W)w, 1);
3063		3249
3064	EV_FREQUENT_CHECK;	3250	EV_FREQUENT_CHECK;
3065	}	3251	}
…		…
3074	EV_FREQUENT_CHECK;	3260	EV_FREQUENT_CHECK;
3075		3261
3076	#if EV_USE_INOTIFY	3262	#if EV_USE_INOTIFY
3077	infy_del (EV_A_ w);	3263	infy_del (EV_A_ w);
3078	#endif	3264	#endif
		3265
		3266	if (ev_is_active (&w->timer))
		3267	{
		3268	ev_ref (EV_A);
3079	ev_timer_stop (EV_A_ &w->timer);	3269	ev_timer_stop (EV_A_ &w->timer);
		3270	}
3080		3271
3081	ev_stop (EV_A_ (W)w);	3272	ev_stop (EV_A_ (W)w);
3082		3273
3083	EV_FREQUENT_CHECK;	3274	EV_FREQUENT_CHECK;
3084	}	3275	}
…		…
3129		3320
3130	EV_FREQUENT_CHECK;	3321	EV_FREQUENT_CHECK;
3131	}	3322	}
3132	#endif	3323	#endif
3133		3324
		3325	#if EV_PREPARE_ENABLE
3134	void	3326	void
3135	ev_prepare_start (EV_P_ ev_prepare *w)	3327	ev_prepare_start (EV_P_ ev_prepare *w)
3136	{	3328	{
3137	if (expect_false (ev_is_active (w)))	3329	if (expect_false (ev_is_active (w)))
3138	return;	3330	return;
…		…
3164		3356
3165	ev_stop (EV_A_ (W)w);	3357	ev_stop (EV_A_ (W)w);
3166		3358
3167	EV_FREQUENT_CHECK;	3359	EV_FREQUENT_CHECK;
3168	}	3360	}
		3361	#endif
3169		3362
		3363	#if EV_CHECK_ENABLE
3170	void	3364	void
3171	ev_check_start (EV_P_ ev_check *w)	3365	ev_check_start (EV_P_ ev_check *w)
3172	{	3366	{
3173	if (expect_false (ev_is_active (w)))	3367	if (expect_false (ev_is_active (w)))
3174	return;	3368	return;
…		…
3200		3394
3201	ev_stop (EV_A_ (W)w);	3395	ev_stop (EV_A_ (W)w);
3202		3396
3203	EV_FREQUENT_CHECK;	3397	EV_FREQUENT_CHECK;
3204	}	3398	}
		3399	#endif
3205		3400
3206	#if EV_EMBED_ENABLE	3401	#if EV_EMBED_ENABLE
3207	void noinline	3402	void noinline
3208	ev_embed_sweep (EV_P_ ev_embed *w)	3403	ev_embed_sweep (EV_P_ ev_embed *w)
3209	{	3404	{
…		…
3225	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3420	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3226	{	3421	{
3227	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3422	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3228		3423
3229	{	3424	{
3230	struct ev_loop *loop = w->other;	3425	EV_P = w->other;
3231		3426
3232	while (fdchangecnt)	3427	while (fdchangecnt)
3233	{	3428	{
3234	fd_reify (EV_A);	3429	fd_reify (EV_A);
3235	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3430	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
3243	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	3438	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3244		3439
3245	ev_embed_stop (EV_A_ w);	3440	ev_embed_stop (EV_A_ w);
3246		3441
3247	{	3442	{
3248	struct ev_loop *loop = w->other;	3443	EV_P = w->other;
3249		3444
3250	ev_loop_fork (EV_A);	3445	ev_loop_fork (EV_A);
3251	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3446	ev_loop (EV_A_ EVLOOP_NONBLOCK);
3252	}	3447	}
3253		3448
…		…
3267	{	3462	{
3268	if (expect_false (ev_is_active (w)))	3463	if (expect_false (ev_is_active (w)))
3269	return;	3464	return;
3270		3465
3271	{	3466	{
3272	struct ev_loop *loop = w->other;	3467	EV_P = w->other;
3273	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3468	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3274	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3469	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3275	}	3470	}
3276		3471
3277	EV_FREQUENT_CHECK;	3472	EV_FREQUENT_CHECK;
…		…
3304		3499
3305	ev_io_stop (EV_A_ &w->io);	3500	ev_io_stop (EV_A_ &w->io);
3306	ev_prepare_stop (EV_A_ &w->prepare);	3501	ev_prepare_stop (EV_A_ &w->prepare);
3307	ev_fork_stop (EV_A_ &w->fork);	3502	ev_fork_stop (EV_A_ &w->fork);
3308		3503
		3504	ev_stop (EV_A_ (W)w);
		3505
3309	EV_FREQUENT_CHECK;	3506	EV_FREQUENT_CHECK;
3310	}	3507	}
3311	#endif	3508	#endif
3312		3509
3313	#if EV_FORK_ENABLE	3510	#if EV_FORK_ENABLE
…		…
3389		3586
3390	void	3587	void
3391	ev_async_send (EV_P_ ev_async *w)	3588	ev_async_send (EV_P_ ev_async *w)
3392	{	3589	{
3393	w->sent = 1;	3590	w->sent = 1;
3394	evpipe_write (EV_A_ &gotasync);	3591	evpipe_write (EV_A_ &async_pending);
3395	}	3592	}
3396	#endif	3593	#endif
3397		3594
3398	/*****************************************************************************/	3595	/*****************************************************************************/
3399		3596
…		…
3536	if (types & EV_ASYNC)	3733	if (types & EV_ASYNC)
3537	for (i = asynccnt; i--; )	3734	for (i = asynccnt; i--; )
3538	cb (EV_A_ EV_ASYNC, asyncs [i]);	3735	cb (EV_A_ EV_ASYNC, asyncs [i]);
3539	#endif	3736	#endif
3540		3737
		3738	#if EV_PREPARE_ENABLE
3541	if (types & EV_PREPARE)	3739	if (types & EV_PREPARE)
3542	for (i = preparecnt; i--; )	3740	for (i = preparecnt; i--; )
3543	#if EV_EMBED_ENABLE	3741	# if EV_EMBED_ENABLE
3544	if (ev_cb (prepares [i]) != embed_prepare_cb)	3742	if (ev_cb (prepares [i]) != embed_prepare_cb)
3545	#endif	3743	# endif
3546	cb (EV_A_ EV_PREPARE, prepares [i]);	3744	cb (EV_A_ EV_PREPARE, prepares [i]);
		3745	#endif
3547		3746
		3747	#if EV_CHECK_ENABLE
3548	if (types & EV_CHECK)	3748	if (types & EV_CHECK)
3549	for (i = checkcnt; i--; )	3749	for (i = checkcnt; i--; )
3550	cb (EV_A_ EV_CHECK, checks [i]);	3750	cb (EV_A_ EV_CHECK, checks [i]);
		3751	#endif
3551		3752
		3753	#if EV_SIGNAL_ENABLE
3552	if (types & EV_SIGNAL)	3754	if (types & EV_SIGNAL)
3553	for (i = 0; i < signalmax; ++i)	3755	for (i = 0; i < EV_NSIG - 1; ++i)
3554	for (wl = signals [i].head; wl; )	3756	for (wl = signals [i].head; wl; )
3555	{	3757	{
3556	wn = wl->next;	3758	wn = wl->next;
3557	cb (EV_A_ EV_SIGNAL, wl);	3759	cb (EV_A_ EV_SIGNAL, wl);
3558	wl = wn;	3760	wl = wn;
3559	}	3761	}
		3762	#endif
3560		3763
		3764	#if EV_CHILD_ENABLE
3561	if (types & EV_CHILD)	3765	if (types & EV_CHILD)
3562	for (i = EV_PID_HASHSIZE; i--; )	3766	for (i = (EV_PID_HASHSIZE); i--; )
3563	for (wl = childs [i]; wl; )	3767	for (wl = childs [i]; wl; )
3564	{	3768	{
3565	wn = wl->next;	3769	wn = wl->next;
3566	cb (EV_A_ EV_CHILD, wl);	3770	cb (EV_A_ EV_CHILD, wl);
3567	wl = wn;	3771	wl = wn;
3568	}	3772	}
		3773	#endif
3569	/* EV_STAT 0x00001000 /* stat data changed */	3774	/* EV_STAT 0x00001000 /* stat data changed */
3570	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3775	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3571	}	3776	}
3572	#endif	3777	#endif
3573		3778

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