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Comparing libev/ev.c (file contents):
Revision 1.304 by root, Sun Jul 19 03:12:28 2009 UTC vs.
Revision 1.343 by root, Fri Apr 2 21:03:46 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
88	# endif
89
90	# ifndef EV_USE_SELECT
91	# if HAVE_SELECT && HAVE_SYS_SELECT_H
92	# define EV_USE_SELECT 1
93	# else	95	# else
		96	# undef EV_USE_SELECT
94	# define EV_USE_SELECT 0	97	# define EV_USE_SELECT 0
		98	# endif
		99
		100	# if HAVE_POLL && HAVE_POLL_H
		101	# ifndef EV_USE_POLL
		102	# define EV_USE_POLL EV_FEATURE_BACKENDS
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
		107	# endif
		108
		109	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		110	# ifndef EV_USE_EPOLL
		111	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
103	# endif	112	# endif
		113	# else
		114	# undef EV_USE_EPOLL
		115	# define EV_USE_EPOLL 0
104	# endif	116	# endif
105		117
		118	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
106	# ifndef EV_USE_EPOLL	119	# ifndef EV_USE_KQUEUE
107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	120	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
108	# define EV_USE_EPOLL 1
109	# else
110	# define EV_USE_EPOLL 0
111	# endif	121	# endif
		122	# else
		123	# undef EV_USE_KQUEUE
		124	# define EV_USE_KQUEUE 0
112	# endif	125	# endif
113		126
114	# ifndef EV_USE_KQUEUE	127	# if HAVE_PORT_H && HAVE_PORT_CREATE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	128	# ifndef EV_USE_PORT
116	# define EV_USE_KQUEUE 1	129	# define EV_USE_PORT EV_FEATURE_BACKENDS
117	# else
118	# define EV_USE_KQUEUE 0
119	# endif	130	# endif
120	# endif
121
122	# ifndef EV_USE_PORT
123	# if HAVE_PORT_H && HAVE_PORT_CREATE
124	# define EV_USE_PORT 1
125	# else	131	# else
		132	# undef EV_USE_PORT
126	# define EV_USE_PORT 0	133	# define EV_USE_PORT 0
		134	# endif
		135
		136	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		137	# ifndef EV_USE_INOTIFY
		138	# define EV_USE_INOTIFY EV_FEATURE_OS
127	# endif	139	# endif
128	# endif
129
130	# ifndef EV_USE_INOTIFY
131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132	# define EV_USE_INOTIFY 1
133	# else	140	# else
		141	# undef EV_USE_INOTIFY
134	# define EV_USE_INOTIFY 0	142	# define EV_USE_INOTIFY 0
		143	# endif
		144
		145	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
		146	# ifndef EV_USE_SIGNALFD
		147	# define EV_USE_SIGNALFD EV_FEATURE_OS
135	# endif	148	# endif
136	# endif
137
138	# ifndef EV_USE_SIGNALFD
139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140	# define EV_USE_SIGNALFD 1
141	# else	149	# else
		150	# undef EV_USE_SIGNALFD
142	# define EV_USE_SIGNALFD 0	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
143	# endif	157	# endif
144	# endif
145
146	# ifndef EV_USE_EVENTFD
147	# if HAVE_EVENTFD
148	# define EV_USE_EVENTFD 1
149	# else	158	# else
		159	# undef EV_USE_EVENTFD
150	# define EV_USE_EVENTFD 0	160	# define EV_USE_EVENTFD 0
151	# endif
152	# endif	161	# endif
153		162
154	#endif	163	#endif
155		164
156	#include <math.h>	165	#include <math.h>
157	#include <stdlib.h>	166	#include <stdlib.h>
		167	#include <string.h>
158	#include <fcntl.h>	168	#include <fcntl.h>
159	#include <stddef.h>	169	#include <stddef.h>
160		170
161	#include <stdio.h>	171	#include <stdio.h>
162		172
163	#include <assert.h>	173	#include <assert.h>
164	#include <errno.h>	174	#include <errno.h>
165	#include <sys/types.h>	175	#include <sys/types.h>
166	#include <time.h>	176	#include <time.h>
		177	#include <limits.h>
167		178
168	#include <signal.h>	179	#include <signal.h>
169		180
170	#ifdef EV_H	181	#ifdef EV_H
171	# include EV_H	182	# include EV_H
…		…
182	# define WIN32_LEAN_AND_MEAN	193	# define WIN32_LEAN_AND_MEAN
183	# include <windows.h>	194	# include <windows.h>
184	# ifndef EV_SELECT_IS_WINSOCKET	195	# ifndef EV_SELECT_IS_WINSOCKET
185	# define EV_SELECT_IS_WINSOCKET 1	196	# define EV_SELECT_IS_WINSOCKET 1
186	# endif	197	# endif
		198	# undef EV_AVOID_STDIO
187	#endif	199	#endif
188		200
189	/* this block tries to deduce configuration from header-defined symbols and defaults */	201	/* this block tries to deduce configuration from header-defined symbols and defaults */
		202
		203	/* try to deduce the maximum number of signals on this platform */
		204	#if defined (EV_NSIG)
		205	/* use what's provided */
		206	#elif defined (NSIG)
		207	# define EV_NSIG (NSIG)
		208	#elif defined(_NSIG)
		209	# define EV_NSIG (_NSIG)
		210	#elif defined (SIGMAX)
		211	# define EV_NSIG (SIGMAX+1)
		212	#elif defined (SIG_MAX)
		213	# define EV_NSIG (SIG_MAX+1)
		214	#elif defined (_SIG_MAX)
		215	# define EV_NSIG (_SIG_MAX+1)
		216	#elif defined (MAXSIG)
		217	# define EV_NSIG (MAXSIG+1)
		218	#elif defined (MAX_SIG)
		219	# define EV_NSIG (MAX_SIG+1)
		220	#elif defined (SIGARRAYSIZE)
		221	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
		222	#elif defined (_sys_nsig)
		223	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		224	#else
		225	# error "unable to find value for NSIG, please report"
		226	/* to make it compile regardless, just remove the above line, */
		227	/* but consider reporting it, too! :) */
		228	# define EV_NSIG 65
		229	#endif
190		230
191	#ifndef EV_USE_CLOCK_SYSCALL	231	#ifndef EV_USE_CLOCK_SYSCALL
192	# if __linux && __GLIBC__ >= 2	232	# if __linux && __GLIBC__ >= 2
193	# define EV_USE_CLOCK_SYSCALL 1	233	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
194	# else	234	# else
195	# define EV_USE_CLOCK_SYSCALL 0	235	# define EV_USE_CLOCK_SYSCALL 0
196	# endif	236	# endif
197	#endif	237	#endif
198		238
199	#ifndef EV_USE_MONOTONIC	239	#ifndef EV_USE_MONOTONIC
200	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	240	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
201	# define EV_USE_MONOTONIC 1	241	# define EV_USE_MONOTONIC EV_FEATURE_OS
202	# else	242	# else
203	# define EV_USE_MONOTONIC 0	243	# define EV_USE_MONOTONIC 0
204	# endif	244	# endif
205	#endif	245	#endif
206		246
…		…
208	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	248	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
209	#endif	249	#endif
210		250
211	#ifndef EV_USE_NANOSLEEP	251	#ifndef EV_USE_NANOSLEEP
212	# if _POSIX_C_SOURCE >= 199309L	252	# if _POSIX_C_SOURCE >= 199309L
213	# define EV_USE_NANOSLEEP 1	253	# define EV_USE_NANOSLEEP EV_FEATURE_OS
214	# else	254	# else
215	# define EV_USE_NANOSLEEP 0	255	# define EV_USE_NANOSLEEP 0
216	# endif	256	# endif
217	#endif	257	#endif
218		258
219	#ifndef EV_USE_SELECT	259	#ifndef EV_USE_SELECT
220	# define EV_USE_SELECT 1	260	# define EV_USE_SELECT EV_FEATURE_BACKENDS
221	#endif	261	#endif
222		262
223	#ifndef EV_USE_POLL	263	#ifndef EV_USE_POLL
224	# ifdef _WIN32	264	# ifdef _WIN32
225	# define EV_USE_POLL 0	265	# define EV_USE_POLL 0
226	# else	266	# else
227	# define EV_USE_POLL 1	267	# define EV_USE_POLL EV_FEATURE_BACKENDS
228	# endif	268	# endif
229	#endif	269	#endif
230		270
231	#ifndef EV_USE_EPOLL	271	#ifndef EV_USE_EPOLL
232	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	272	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
233	# define EV_USE_EPOLL 1	273	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
234	# else	274	# else
235	# define EV_USE_EPOLL 0	275	# define EV_USE_EPOLL 0
236	# endif	276	# endif
237	#endif	277	#endif
238		278
…		…
244	# define EV_USE_PORT 0	284	# define EV_USE_PORT 0
245	#endif	285	#endif
246		286
247	#ifndef EV_USE_INOTIFY	287	#ifndef EV_USE_INOTIFY
248	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	288	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
249	# define EV_USE_INOTIFY 1	289	# define EV_USE_INOTIFY EV_FEATURE_OS
250	# else	290	# else
251	# define EV_USE_INOTIFY 0	291	# define EV_USE_INOTIFY 0
252	# endif	292	# endif
253	#endif	293	#endif
254		294
255	#ifndef EV_PID_HASHSIZE	295	#ifndef EV_PID_HASHSIZE
256	# if EV_MINIMAL	296	# 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	297	#endif
262		298
263	#ifndef EV_INOTIFY_HASHSIZE	299	#ifndef EV_INOTIFY_HASHSIZE
264	# if EV_MINIMAL	300	# 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	301	#endif
270		302
271	#ifndef EV_USE_EVENTFD	303	#ifndef EV_USE_EVENTFD
272	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	304	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
273	# define EV_USE_EVENTFD 1	305	# define EV_USE_EVENTFD EV_FEATURE_OS
274	# else	306	# else
275	# define EV_USE_EVENTFD 0	307	# define EV_USE_EVENTFD 0
276	# endif	308	# endif
277	#endif	309	#endif
278		310
279	#ifndef EV_USE_SIGNALFD	311	#ifndef EV_USE_SIGNALFD
280	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))	312	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
281	# define EV_USE_SIGNALFD 1	313	# define EV_USE_SIGNALFD EV_FEATURE_OS
282	# else	314	# else
283	# define EV_USE_SIGNALFD 0	315	# define EV_USE_SIGNALFD 0
284	# endif	316	# endif
285	#endif	317	#endif
286		318
…		…
289	# define EV_USE_4HEAP 1	321	# define EV_USE_4HEAP 1
290	# define EV_HEAP_CACHE_AT 1	322	# define EV_HEAP_CACHE_AT 1
291	#endif	323	#endif
292		324
293	#ifndef EV_VERIFY	325	#ifndef EV_VERIFY
294	# define EV_VERIFY !EV_MINIMAL	326	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
295	#endif	327	#endif
296		328
297	#ifndef EV_USE_4HEAP	329	#ifndef EV_USE_4HEAP
298	# define EV_USE_4HEAP !EV_MINIMAL	330	# define EV_USE_4HEAP EV_FEATURE_DATA
299	#endif	331	#endif
300		332
301	#ifndef EV_HEAP_CACHE_AT	333	#ifndef EV_HEAP_CACHE_AT
302	# define EV_HEAP_CACHE_AT !EV_MINIMAL	334	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
303	#endif	335	#endif
304		336
305	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	337	/* 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. */	338	/* which makes programs even slower. might work on other unices, too. */
307	#if EV_USE_CLOCK_SYSCALL	339	#if EV_USE_CLOCK_SYSCALL
…		…
316	# endif	348	# endif
317	#endif	349	#endif
318		350
319	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	351	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
320		352
		353	#ifdef _AIX
		354	/* AIX has a completely broken poll.h header */
		355	# undef EV_USE_POLL
		356	# define EV_USE_POLL 0
		357	#endif
		358
321	#ifndef CLOCK_MONOTONIC	359	#ifndef CLOCK_MONOTONIC
322	# undef EV_USE_MONOTONIC	360	# undef EV_USE_MONOTONIC
323	# define EV_USE_MONOTONIC 0	361	# define EV_USE_MONOTONIC 0
324	#endif	362	#endif
325		363
…		…
359	# include <stdint.h>	397	# include <stdint.h>
360	# ifndef EFD_NONBLOCK	398	# ifndef EFD_NONBLOCK
361	# define EFD_NONBLOCK O_NONBLOCK	399	# define EFD_NONBLOCK O_NONBLOCK
362	# endif	400	# endif
363	# ifndef EFD_CLOEXEC	401	# ifndef EFD_CLOEXEC
		402	# ifdef O_CLOEXEC
364	# define EFD_CLOEXEC O_CLOEXEC	403	# define EFD_CLOEXEC O_CLOEXEC
		404	# else
		405	# define EFD_CLOEXEC 02000000
		406	# endif
365	# endif	407	# endif
366	# ifdef __cplusplus	408	# ifdef __cplusplus
367	extern "C" {	409	extern "C" {
368	# endif	410	# endif
369	int eventfd (unsigned int initval, int flags);	411	int (eventfd) (unsigned int initval, int flags);
370	# ifdef __cplusplus	412	# ifdef __cplusplus
371	}	413	}
372	# endif	414	# endif
373	#endif	415	#endif
374		416
375	#if EV_USE_SIGNALFD	417	#if EV_USE_SIGNALFD
376	# include <sys/signalfd.h>	418	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		419	# include <stdint.h>
		420	# ifndef SFD_NONBLOCK
		421	# define SFD_NONBLOCK O_NONBLOCK
377	#endif	422	# endif
		423	# ifndef SFD_CLOEXEC
		424	# ifdef O_CLOEXEC
		425	# define SFD_CLOEXEC O_CLOEXEC
		426	# else
		427	# define SFD_CLOEXEC 02000000
		428	# endif
		429	# endif
		430	# ifdef __cplusplus
		431	extern "C" {
		432	# endif
		433	int signalfd (int fd, const sigset_t *mask, int flags);
		434
		435	struct signalfd_siginfo
		436	{
		437	uint32_t ssi_signo;
		438	char pad[128 - sizeof (uint32_t)];
		439	};
		440	# ifdef __cplusplus
		441	}
		442	# endif
		443	#endif
		444
378		445
379	/**/	446	/**/
380		447
381	#if EV_VERIFY >= 3	448	#if EV_VERIFY >= 3
382	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	449	# define EV_FREQUENT_CHECK ev_verify (EV_A)
383	#else	450	#else
384	# define EV_FREQUENT_CHECK do { } while (0)	451	# define EV_FREQUENT_CHECK do { } while (0)
385	#endif	452	#endif
386		453
387	/*	454	/*
…		…
394	*/	461	*/
395	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	462	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
396		463
397	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	464	#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) */	465	#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		466
401	#if __GNUC__ >= 4	467	#if __GNUC__ >= 4
402	# define expect(expr,value) __builtin_expect ((expr),(value))	468	# define expect(expr,value) __builtin_expect ((expr),(value))
403	# define noinline __attribute__ ((noinline))	469	# define noinline __attribute__ ((noinline))
404	#else	470	#else
…		…
411		477
412	#define expect_false(expr) expect ((expr) != 0, 0)	478	#define expect_false(expr) expect ((expr) != 0, 0)
413	#define expect_true(expr) expect ((expr) != 0, 1)	479	#define expect_true(expr) expect ((expr) != 0, 1)
414	#define inline_size static inline	480	#define inline_size static inline
415		481
416	#if EV_MINIMAL	482	#if EV_FEATURE_CODE
		483	# define inline_speed static inline
		484	#else
417	# define inline_speed static noinline	485	# define inline_speed static noinline
418	#else
419	# define inline_speed static inline
420	#endif	486	#endif
421		487
422	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	488	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
423		489
424	#if EV_MINPRI == EV_MAXPRI	490	#if EV_MINPRI == EV_MAXPRI
…		…
445		511
446	#if EV_USE_MONOTONIC	512	#if EV_USE_MONOTONIC
447	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	513	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
448	#endif	514	#endif
449		515
		516	#ifndef EV_FD_TO_WIN32_HANDLE
		517	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		518	#endif
		519	#ifndef EV_WIN32_HANDLE_TO_FD
		520	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		521	#endif
		522	#ifndef EV_WIN32_CLOSE_FD
		523	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		524	#endif
		525
450	#ifdef _WIN32	526	#ifdef _WIN32
451	# include "ev_win32.c"	527	# include "ev_win32.c"
452	#endif	528	#endif
453		529
454	/*****************************************************************************/	530	/*****************************************************************************/
		531
		532	#if EV_AVOID_STDIO
		533	static void noinline
		534	ev_printerr (const char *msg)
		535	{
		536	write (STDERR_FILENO, msg, strlen (msg));
		537	}
		538	#endif
455		539
456	static void (*syserr_cb)(const char *msg);	540	static void (*syserr_cb)(const char *msg);
457		541
458	void	542	void
459	ev_set_syserr_cb (void (*cb)(const char *msg))	543	ev_set_syserr_cb (void (*cb)(const char *msg))
…		…
469		553
470	if (syserr_cb)	554	if (syserr_cb)
471	syserr_cb (msg);	555	syserr_cb (msg);
472	else	556	else
473	{	557	{
		558	#if EV_AVOID_STDIO
		559	const char *err = strerror (errno);
		560
		561	ev_printerr (msg);
		562	ev_printerr (": ");
		563	ev_printerr (err);
		564	ev_printerr ("\n");
		565	#else
474	perror (msg);	566	perror (msg);
		567	#endif
475	abort ();	568	abort ();
476	}	569	}
477	}	570	}
478		571
479	static void *	572	static void *
480	ev_realloc_emul (void *ptr, long size)	573	ev_realloc_emul (void *ptr, long size)
481	{	574	{
		575	#if __GLIBC__
		576	return realloc (ptr, size);
		577	#else
482	/* some systems, notably openbsd and darwin, fail to properly	578	/* some systems, notably openbsd and darwin, fail to properly
483	* implement realloc (x, 0) (as required by both ansi c-98 and	579	* implement realloc (x, 0) (as required by both ansi c-89 and
484	* the single unix specification, so work around them here.	580	* the single unix specification, so work around them here.
485	*/	581	*/
486		582
487	if (size)	583	if (size)
488	return realloc (ptr, size);	584	return realloc (ptr, size);
489		585
490	free (ptr);	586	free (ptr);
491	return 0;	587	return 0;
		588	#endif
492	}	589	}
493		590
494	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	591	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
495		592
496	void	593	void
…		…
504	{	601	{
505	ptr = alloc (ptr, size);	602	ptr = alloc (ptr, size);
506		603
507	if (!ptr && size)	604	if (!ptr && size)
508	{	605	{
		606	#if EV_AVOID_STDIO
		607	ev_printerr ("libev: memory allocation failed, aborting.\n");
		608	#else
509	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	609	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		610	#endif
510	abort ();	611	abort ();
511	}	612	}
512		613
513	return ptr;	614	return ptr;
514	}	615	}
…		…
596		697
597	static int ev_default_loop_ptr;	698	static int ev_default_loop_ptr;
598		699
599	#endif	700	#endif
600		701
601	#if EV_MINIMAL < 2	702	#if EV_FEATURE_API
602	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	703	# 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)	704	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
604	# define EV_INVOKE_PENDING invoke_cb (EV_A)	705	# define EV_INVOKE_PENDING invoke_cb (EV_A)
605	#else	706	#else
606	# define EV_RELEASE_CB (void)0	707	# define EV_RELEASE_CB (void)0
…		…
791	}	892	}
792		893
793	/*****************************************************************************/	894	/*****************************************************************************/
794		895
795	inline_speed void	896	inline_speed void
796	fd_event_nc (EV_P_ int fd, int revents)	897	fd_event_nocheck (EV_P_ int fd, int revents)
797	{	898	{
798	ANFD *anfd = anfds + fd;	899	ANFD *anfd = anfds + fd;
799	ev_io *w;	900	ev_io *w;
800		901
801	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	902	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
813	fd_event (EV_P_ int fd, int revents)	914	fd_event (EV_P_ int fd, int revents)
814	{	915	{
815	ANFD *anfd = anfds + fd;	916	ANFD *anfd = anfds + fd;
816		917
817	if (expect_true (!anfd->reify))	918	if (expect_true (!anfd->reify))
818	fd_event_nc (EV_A_ fd, revents);	919	fd_event_nocheck (EV_A_ fd, revents);
819	}	920	}
820		921
821	void	922	void
822	ev_feed_fd_event (EV_P_ int fd, int revents)	923	ev_feed_fd_event (EV_P_ int fd, int revents)
823	{	924	{
824	if (fd >= 0 && fd < anfdmax)	925	if (fd >= 0 && fd < anfdmax)
825	fd_event_nc (EV_A_ fd, revents);	926	fd_event_nocheck (EV_A_ fd, revents);
826	}	927	}
827		928
828	/* make sure the external fd watch events are in-sync */	929	/* make sure the external fd watch events are in-sync */
829	/* with the kernel/libev internal state */	930	/* with the kernel/libev internal state */
830	inline_size void	931	inline_size void
…		…
845		946
846	#if EV_SELECT_IS_WINSOCKET	947	#if EV_SELECT_IS_WINSOCKET
847	if (events)	948	if (events)
848	{	949	{
849	unsigned long arg;	950	unsigned long arg;
850	#ifdef EV_FD_TO_WIN32_HANDLE
851	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	951	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));	952	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
856	}	953	}
857	#endif	954	#endif
858		955
859	{	956	{
…		…
897	ev_io_stop (EV_A_ w);	994	ev_io_stop (EV_A_ w);
898	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	995	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
899	}	996	}
900	}	997	}
901		998
902	/* check whether the given fd is atcually valid, for error recovery */	999	/* check whether the given fd is actually valid, for error recovery */
903	inline_size int	1000	inline_size int
904	fd_valid (int fd)	1001	fd_valid (int fd)
905	{	1002	{
906	#ifdef _WIN32	1003	#ifdef _WIN32
907	return _get_osfhandle (fd) != -1;	1004	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
908	#else	1005	#else
909	return fcntl (fd, F_GETFD) != -1;	1006	return fcntl (fd, F_GETFD) != -1;
910	#endif	1007	#endif
911	}	1008	}
912		1009
…		…
930		1027
931	for (fd = anfdmax; fd--; )	1028	for (fd = anfdmax; fd--; )
932	if (anfds [fd].events)	1029	if (anfds [fd].events)
933	{	1030	{
934	fd_kill (EV_A_ fd);	1031	fd_kill (EV_A_ fd);
935	return;	1032	break;
936	}	1033	}
937	}	1034	}
938		1035
939	/* usually called after fork if backend needs to re-arm all fds from scratch */	1036	/* usually called after fork if backend needs to re-arm all fds from scratch */
940	static void noinline	1037	static void noinline
…		…
947	{	1044	{
948	anfds [fd].events = 0;	1045	anfds [fd].events = 0;
949	anfds [fd].emask = 0;	1046	anfds [fd].emask = 0;
950	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);	1047	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
951	}	1048	}
		1049	}
		1050
		1051	/* used to prepare libev internal fd's */
		1052	/* this is not fork-safe */
		1053	inline_speed void
		1054	fd_intern (int fd)
		1055	{
		1056	#ifdef _WIN32
		1057	unsigned long arg = 1;
		1058	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1059	#else
		1060	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1061	fcntl (fd, F_SETFL, O_NONBLOCK);
		1062	#endif
952	}	1063	}
953		1064
954	/*****************************************************************************/	1065	/*****************************************************************************/
955		1066
956	/*	1067	/*
…		…
1030		1141
1031	for (;;)	1142	for (;;)
1032	{	1143	{
1033	int c = k << 1;	1144	int c = k << 1;
1034		1145
1035	if (c > N + HEAP0 - 1)	1146	if (c >= N + HEAP0)
1036	break;	1147	break;
1037		1148
1038	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1149	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1039	? 1 : 0;	1150	? 1 : 0;
1040		1151
…		…
1076		1187
1077	/* move an element suitably so it is in a correct place */	1188	/* move an element suitably so it is in a correct place */
1078	inline_size void	1189	inline_size void
1079	adjustheap (ANHE *heap, int N, int k)	1190	adjustheap (ANHE *heap, int N, int k)
1080	{	1191	{
1081	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1192	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1082	upheap (heap, k);	1193	upheap (heap, k);
1083	else	1194	else
1084	downheap (heap, N, k);	1195	downheap (heap, N, k);
1085	}	1196	}
1086		1197
…		…
1099	/*****************************************************************************/	1210	/*****************************************************************************/
1100		1211
1101	/* associate signal watchers to a signal signal */	1212	/* associate signal watchers to a signal signal */
1102	typedef struct	1213	typedef struct
1103	{	1214	{
		1215	EV_ATOMIC_T pending;
		1216	#if EV_MULTIPLICITY
		1217	EV_P;
		1218	#endif
1104	WL head;	1219	WL head;
1105	EV_ATOMIC_T gotsig;
1106	} ANSIG;	1220	} ANSIG;
1107		1221
1108	static ANSIG *signals;	1222	static ANSIG signals [EV_NSIG - 1];
1109	static int signalmax;
1110
1111	static EV_ATOMIC_T gotsig;
1112		1223
1113	/*****************************************************************************/	1224	/*****************************************************************************/
1114		1225
1115	/* used to prepare libev internal fd's */	1226	#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		1227
1129	static void noinline	1228	static void noinline
1130	evpipe_init (EV_P)	1229	evpipe_init (EV_P)
1131	{	1230	{
1132	if (!ev_is_active (&pipe_w))	1231	if (!ev_is_active (&pipe_w))
1133	{	1232	{
1134	#if EV_USE_EVENTFD	1233	# if EV_USE_EVENTFD
1135	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1234	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1136	if (evfd < 0 && errno == EINVAL)	1235	if (evfd < 0 && errno == EINVAL)
1137	evfd = eventfd (0, 0);	1236	evfd = eventfd (0, 0);
1138		1237
1139	if (evfd >= 0)	1238	if (evfd >= 0)
…		…
1141	evpipe [0] = -1;	1240	evpipe [0] = -1;
1142	fd_intern (evfd); /* doing it twice doesn't hurt */	1241	fd_intern (evfd); /* doing it twice doesn't hurt */
1143	ev_io_set (&pipe_w, evfd, EV_READ);	1242	ev_io_set (&pipe_w, evfd, EV_READ);
1144	}	1243	}
1145	else	1244	else
1146	#endif	1245	# endif
1147	{	1246	{
1148	while (pipe (evpipe))	1247	while (pipe (evpipe))
1149	ev_syserr ("(libev) error creating signal/async pipe");	1248	ev_syserr ("(libev) error creating signal/async pipe");
1150		1249
1151	fd_intern (evpipe [0]);	1250	fd_intern (evpipe [0]);
…		…
1162	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1261	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1163	{	1262	{
1164	if (!*flag)	1263	if (!*flag)
1165	{	1264	{
1166	int old_errno = errno; /* save errno because write might clobber it */	1265	int old_errno = errno; /* save errno because write might clobber it */
		1266	char dummy;
1167		1267
1168	*flag = 1;	1268	*flag = 1;
1169		1269
1170	#if EV_USE_EVENTFD	1270	#if EV_USE_EVENTFD
1171	if (evfd >= 0)	1271	if (evfd >= 0)
…		…
1173	uint64_t counter = 1;	1273	uint64_t counter = 1;
1174	write (evfd, &counter, sizeof (uint64_t));	1274	write (evfd, &counter, sizeof (uint64_t));
1175	}	1275	}
1176	else	1276	else
1177	#endif	1277	#endif
1178	write (evpipe [1], &old_errno, 1);	1278	write (evpipe [1], &dummy, 1);
1179		1279
1180	errno = old_errno;	1280	errno = old_errno;
1181	}	1281	}
1182	}	1282	}
1183		1283
1184	/* called whenever the libev signal pipe */	1284	/* called whenever the libev signal pipe */
1185	/* got some events (signal, async) */	1285	/* got some events (signal, async) */
1186	static void	1286	static void
1187	pipecb (EV_P_ ev_io *iow, int revents)	1287	pipecb (EV_P_ ev_io *iow, int revents)
1188	{	1288	{
		1289	int i;
		1290
1189	#if EV_USE_EVENTFD	1291	#if EV_USE_EVENTFD
1190	if (evfd >= 0)	1292	if (evfd >= 0)
1191	{	1293	{
1192	uint64_t counter;	1294	uint64_t counter;
1193	read (evfd, &counter, sizeof (uint64_t));	1295	read (evfd, &counter, sizeof (uint64_t));
…		…
1197	{	1299	{
1198	char dummy;	1300	char dummy;
1199	read (evpipe [0], &dummy, 1);	1301	read (evpipe [0], &dummy, 1);
1200	}	1302	}
1201		1303
1202	if (gotsig && ev_is_default_loop (EV_A))	1304	if (sig_pending)
1203	{	1305	{
1204	int signum;	1306	sig_pending = 0;
1205	gotsig = 0;
1206		1307
1207	for (signum = signalmax; signum--; )	1308	for (i = EV_NSIG - 1; i--; )
1208	if (signals [signum].gotsig)	1309	if (expect_false (signals [i].pending))
1209	ev_feed_signal_event (EV_A_ signum + 1);	1310	ev_feed_signal_event (EV_A_ i + 1);
1210	}	1311	}
1211		1312
1212	#if EV_ASYNC_ENABLE	1313	#if EV_ASYNC_ENABLE
1213	if (gotasync)	1314	if (async_pending)
1214	{	1315	{
1215	int i;	1316	async_pending = 0;
1216	gotasync = 0;
1217		1317
1218	for (i = asynccnt; i--; )	1318	for (i = asynccnt; i--; )
1219	if (asyncs [i]->sent)	1319	if (asyncs [i]->sent)
1220	{	1320	{
1221	asyncs [i]->sent = 0;	1321	asyncs [i]->sent = 0;
…		…
1229		1329
1230	static void	1330	static void
1231	ev_sighandler (int signum)	1331	ev_sighandler (int signum)
1232	{	1332	{
1233	#if EV_MULTIPLICITY	1333	#if EV_MULTIPLICITY
1234	struct ev_loop *loop = &default_loop_struct;	1334	EV_P = signals [signum - 1].loop;
1235	#endif	1335	#endif
1236		1336
1237	#if _WIN32	1337	#ifdef _WIN32
1238	signal (signum, ev_sighandler);	1338	signal (signum, ev_sighandler);
1239	#endif	1339	#endif
1240		1340
1241	signals [signum - 1].gotsig = 1;	1341	signals [signum - 1].pending = 1;
1242	evpipe_write (EV_A_ &gotsig);	1342	evpipe_write (EV_A_ &sig_pending);
1243	}	1343	}
1244		1344
1245	void noinline	1345	void noinline
1246	ev_feed_signal_event (EV_P_ int signum)	1346	ev_feed_signal_event (EV_P_ int signum)
1247	{	1347	{
1248	WL w;	1348	WL w;
1249		1349
		1350	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1351	return;
		1352
		1353	--signum;
		1354
1250	#if EV_MULTIPLICITY	1355	#if EV_MULTIPLICITY
1251	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1356	/* it is permissible to try to feed a signal to the wrong loop */
1252	#endif	1357	/* or, likely more useful, feeding a signal nobody is waiting for */
1253		1358
1254	--signum;	1359	if (expect_false (signals [signum].loop != EV_A))
1255
1256	if (signum < 0 || signum >= signalmax)
1257	return;	1360	return;
		1361	#endif
1258		1362
1259	signals [signum].gotsig = 0;	1363	signals [signum].pending = 0;
1260		1364
1261	for (w = signals [signum].head; w; w = w->next)	1365	for (w = signals [signum].head; w; w = w->next)
1262	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1366	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1263	}	1367	}
1264		1368
1265	#if EV_USE_SIGNALFD	1369	#if EV_USE_SIGNALFD
1266	static void	1370	static void
1267	sigfdcb (EV_P_ ev_io *iow, int revents)	1371	sigfdcb (EV_P_ ev_io *iow, int revents)
1268	{	1372	{
1269	struct signalfd_siginfo si[4], *sip;	1373	struct signalfd_siginfo si[2], *sip; /* these structs are big */
1270		1374
1271	for (;;)	1375	for (;;)
1272	{	1376	{
1273	ssize_t res = read (sigfd, si, sizeof (si));	1377	ssize_t res = read (sigfd, si, sizeof (si));
1274		1378
…		…
1280	break;	1384	break;
1281	}	1385	}
1282	}	1386	}
1283	#endif	1387	#endif
1284		1388
		1389	#endif
		1390
1285	/*****************************************************************************/	1391	/*****************************************************************************/
1286		1392
		1393	#if EV_CHILD_ENABLE
1287	static WL childs [EV_PID_HASHSIZE];	1394	static WL childs [EV_PID_HASHSIZE];
1288
1289	#ifndef _WIN32
1290		1395
1291	static ev_signal childev;	1396	static ev_signal childev;
1292		1397
1293	#ifndef WIFCONTINUED	1398	#ifndef WIFCONTINUED
1294	# define WIFCONTINUED(status) 0	1399	# define WIFCONTINUED(status) 0
…		…
1299	child_reap (EV_P_ int chain, int pid, int status)	1404	child_reap (EV_P_ int chain, int pid, int status)
1300	{	1405	{
1301	ev_child *w;	1406	ev_child *w;
1302	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1407	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1303		1408
1304	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1409	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1305	{	1410	{
1306	if ((w->pid == pid || !w->pid)	1411	if ((w->pid == pid || !w->pid)
1307	&& (!traced || (w->flags & 1)))	1412	&& (!traced || (w->flags & 1)))
1308	{	1413	{
1309	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1414	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 */	1439	/* 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 */	1440	/* 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);	1441	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1337		1442
1338	child_reap (EV_A_ pid, pid, status);	1443	child_reap (EV_A_ pid, pid, status);
1339	if (EV_PID_HASHSIZE > 1)	1444	if ((EV_PID_HASHSIZE) > 1)
1340	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1445	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1341	}	1446	}
1342		1447
1343	#endif	1448	#endif
1344		1449
…		…
1411	#ifdef __APPLE__	1516	#ifdef __APPLE__
1412	/* only select works correctly on that "unix-certified" platform */	1517	/* only select works correctly on that "unix-certified" platform */
1413	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1518	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1414	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1519	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1415	#endif	1520	#endif
		1521	#ifdef __FreeBSD__
		1522	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1523	#endif
1416		1524
1417	return flags;	1525	return flags;
1418	}	1526	}
1419		1527
1420	unsigned int	1528	unsigned int
…		…
1433	ev_backend (EV_P)	1541	ev_backend (EV_P)
1434	{	1542	{
1435	return backend;	1543	return backend;
1436	}	1544	}
1437		1545
1438	#if EV_MINIMAL < 2	1546	#if EV_FEATURE_API
1439	unsigned int	1547	unsigned int
1440	ev_loop_count (EV_P)	1548	ev_iteration (EV_P)
1441	{	1549	{
1442	return loop_count;	1550	return loop_count;
1443	}	1551	}
1444		1552
1445	unsigned int	1553	unsigned int
1446	ev_loop_depth (EV_P)	1554	ev_depth (EV_P)
1447	{	1555	{
1448	return loop_depth;	1556	return loop_depth;
1449	}	1557	}
1450		1558
1451	void	1559	void
…		…
1508	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1616	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1509	have_monotonic = 1;	1617	have_monotonic = 1;
1510	}	1618	}
1511	#endif	1619	#endif
1512		1620
		1621	/* pid check not overridable via env */
		1622	#ifndef _WIN32
		1623	if (flags & EVFLAG_FORKCHECK)
		1624	curpid = getpid ();
		1625	#endif
		1626
		1627	if (!(flags & EVFLAG_NOENV)
		1628	&& !enable_secure ()
		1629	&& getenv ("LIBEV_FLAGS"))
		1630	flags = atoi (getenv ("LIBEV_FLAGS"));
		1631
1513	ev_rt_now = ev_time ();	1632	ev_rt_now = ev_time ();
1514	mn_now = get_clock ();	1633	mn_now = get_clock ();
1515	now_floor = mn_now;	1634	now_floor = mn_now;
1516	rtmn_diff = ev_rt_now - mn_now;	1635	rtmn_diff = ev_rt_now - mn_now;
1517	#if EV_MINIMAL < 2	1636	#if EV_FEATURE_API
1518	invoke_cb = ev_invoke_pending;	1637	invoke_cb = ev_invoke_pending;
1519	#endif	1638	#endif
1520		1639
1521	io_blocktime = 0.;	1640	io_blocktime = 0.;
1522	timeout_blocktime = 0.;	1641	timeout_blocktime = 0.;
1523	backend = 0;	1642	backend = 0;
1524	backend_fd = -1;	1643	backend_fd = -1;
1525	gotasync = 0;	1644	sig_pending = 0;
		1645	#if EV_ASYNC_ENABLE
		1646	async_pending = 0;
		1647	#endif
1526	#if EV_USE_INOTIFY	1648	#if EV_USE_INOTIFY
1527	fs_fd = -2;	1649	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1528	#endif	1650	#endif
1529	#if EV_USE_SIGNALFD	1651	#if EV_USE_SIGNALFD
1530	sigfd = -2;	1652	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1531	#endif	1653	#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		1654
1544	if (!(flags & 0x0000ffffU))	1655	if (!(flags & 0x0000ffffU))
1545	flags |= ev_recommended_backends ();	1656	flags |= ev_recommended_backends ();
1546		1657
1547	#if EV_USE_PORT	1658	#if EV_USE_PORT
…		…
1560	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1671	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1561	#endif	1672	#endif
1562		1673
1563	ev_prepare_init (&pending_w, pendingcb);	1674	ev_prepare_init (&pending_w, pendingcb);
1564		1675
		1676	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1565	ev_init (&pipe_w, pipecb);	1677	ev_init (&pipe_w, pipecb);
1566	ev_set_priority (&pipe_w, EV_MAXPRI);	1678	ev_set_priority (&pipe_w, EV_MAXPRI);
		1679	#endif
1567	}	1680	}
1568	}	1681	}
1569		1682
1570	/* free up a loop structure */	1683	/* free up a loop structure */
1571	static void noinline	1684	static void noinline
…		…
1583	close (evfd);	1696	close (evfd);
1584	#endif	1697	#endif
1585		1698
1586	if (evpipe [0] >= 0)	1699	if (evpipe [0] >= 0)
1587	{	1700	{
1588	close (evpipe [0]);	1701	EV_WIN32_CLOSE_FD (evpipe [0]);
1589	close (evpipe [1]);	1702	EV_WIN32_CLOSE_FD (evpipe [1]);
1590	}	1703	}
1591	}	1704	}
1592		1705
1593	#if EV_USE_SIGNALFD	1706	#if EV_USE_SIGNALFD
1594	if (ev_is_active (&sigfd_w))	1707	if (ev_is_active (&sigfd_w))
1595	{
1596	/*ev_ref (EV_A);*/
1597	/*ev_io_stop (EV_A_ &sigfd_w);*/
1598
1599	close (sigfd);	1708	close (sigfd);
1600	}
1601	#endif	1709	#endif
1602		1710
1603	#if EV_USE_INOTIFY	1711	#if EV_USE_INOTIFY
1604	if (fs_fd >= 0)	1712	if (fs_fd >= 0)
1605	close (fs_fd);	1713	close (fs_fd);
…		…
1630	#if EV_IDLE_ENABLE	1738	#if EV_IDLE_ENABLE
1631	array_free (idle, [i]);	1739	array_free (idle, [i]);
1632	#endif	1740	#endif
1633	}	1741	}
1634		1742
1635	ev_free (anfds); anfdmax = 0;	1743	ev_free (anfds); anfds = 0; anfdmax = 0;
1636		1744
1637	/* have to use the microsoft-never-gets-it-right macro */	1745	/* have to use the microsoft-never-gets-it-right macro */
1638	array_free (rfeed, EMPTY);	1746	array_free (rfeed, EMPTY);
1639	array_free (fdchange, EMPTY);	1747	array_free (fdchange, EMPTY);
1640	array_free (timer, EMPTY);	1748	array_free (timer, EMPTY);
…		…
1675		1783
1676	if (ev_is_active (&pipe_w))	1784	if (ev_is_active (&pipe_w))
1677	{	1785	{
1678	/* this "locks" the handlers against writing to the pipe */	1786	/* this "locks" the handlers against writing to the pipe */
1679	/* while we modify the fd vars */	1787	/* while we modify the fd vars */
1680	gotsig = 1;	1788	sig_pending = 1;
1681	#if EV_ASYNC_ENABLE	1789	#if EV_ASYNC_ENABLE
1682	gotasync = 1;	1790	async_pending = 1;
1683	#endif	1791	#endif
1684		1792
1685	ev_ref (EV_A);	1793	ev_ref (EV_A);
1686	ev_io_stop (EV_A_ &pipe_w);	1794	ev_io_stop (EV_A_ &pipe_w);
1687		1795
…		…
1690	close (evfd);	1798	close (evfd);
1691	#endif	1799	#endif
1692		1800
1693	if (evpipe [0] >= 0)	1801	if (evpipe [0] >= 0)
1694	{	1802	{
1695	close (evpipe [0]);	1803	EV_WIN32_CLOSE_FD (evpipe [0]);
1696	close (evpipe [1]);	1804	EV_WIN32_CLOSE_FD (evpipe [1]);
1697	}	1805	}
1698		1806
		1807	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1699	evpipe_init (EV_A);	1808	evpipe_init (EV_A);
1700	/* now iterate over everything, in case we missed something */	1809	/* now iterate over everything, in case we missed something */
1701	pipecb (EV_A_ &pipe_w, EV_READ);	1810	pipecb (EV_A_ &pipe_w, EV_READ);
		1811	#endif
1702	}	1812	}
1703		1813
1704	postfork = 0;	1814	postfork = 0;
1705	}	1815	}
1706		1816
1707	#if EV_MULTIPLICITY	1817	#if EV_MULTIPLICITY
1708		1818
1709	struct ev_loop *	1819	struct ev_loop *
1710	ev_loop_new (unsigned int flags)	1820	ev_loop_new (unsigned int flags)
1711	{	1821	{
1712	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1822	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1713		1823
1714	memset (loop, 0, sizeof (struct ev_loop));	1824	memset (EV_A, 0, sizeof (struct ev_loop));
1715	loop_init (EV_A_ flags);	1825	loop_init (EV_A_ flags);
1716		1826
1717	if (ev_backend (EV_A))	1827	if (ev_backend (EV_A))
1718	return loop;	1828	return EV_A;
1719		1829
1720	return 0;	1830	return 0;
1721	}	1831	}
1722		1832
1723	void	1833	void
…		…
1768	verify_watcher (EV_A_ ws [cnt]);	1878	verify_watcher (EV_A_ ws [cnt]);
1769	}	1879	}
1770	}	1880	}
1771	#endif	1881	#endif
1772		1882
1773	#if EV_MINIMAL < 2	1883	#if EV_FEATURE_API
1774	void	1884	void
1775	ev_loop_verify (EV_P)	1885	ev_verify (EV_P)
1776	{	1886	{
1777	#if EV_VERIFY	1887	#if EV_VERIFY
1778	int i;	1888	int i;
1779	WL w;	1889	WL w;
1780		1890
…		…
1819	#if EV_ASYNC_ENABLE	1929	#if EV_ASYNC_ENABLE
1820	assert (asyncmax >= asynccnt);	1930	assert (asyncmax >= asynccnt);
1821	array_verify (EV_A_ (W *)asyncs, asynccnt);	1931	array_verify (EV_A_ (W *)asyncs, asynccnt);
1822	#endif	1932	#endif
1823		1933
		1934	#if EV_PREPARE_ENABLE
1824	assert (preparemax >= preparecnt);	1935	assert (preparemax >= preparecnt);
1825	array_verify (EV_A_ (W *)prepares, preparecnt);	1936	array_verify (EV_A_ (W *)prepares, preparecnt);
		1937	#endif
1826		1938
		1939	#if EV_CHECK_ENABLE
1827	assert (checkmax >= checkcnt);	1940	assert (checkmax >= checkcnt);
1828	array_verify (EV_A_ (W *)checks, checkcnt);	1941	array_verify (EV_A_ (W *)checks, checkcnt);
		1942	#endif
1829		1943
1830	# if 0	1944	# if 0
		1945	#if EV_CHILD_ENABLE
1831	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1946	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)	1947	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1948	#endif
1833	# endif	1949	# endif
1834	#endif	1950	#endif
1835	}	1951	}
1836	#endif	1952	#endif
1837		1953
…		…
1844	#endif	1960	#endif
1845	{	1961	{
1846	if (!ev_default_loop_ptr)	1962	if (!ev_default_loop_ptr)
1847	{	1963	{
1848	#if EV_MULTIPLICITY	1964	#if EV_MULTIPLICITY
1849	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1965	EV_P = ev_default_loop_ptr = &default_loop_struct;
1850	#else	1966	#else
1851	ev_default_loop_ptr = 1;	1967	ev_default_loop_ptr = 1;
1852	#endif	1968	#endif
1853		1969
1854	loop_init (EV_A_ flags);	1970	loop_init (EV_A_ flags);
1855		1971
1856	if (ev_backend (EV_A))	1972	if (ev_backend (EV_A))
1857	{	1973	{
1858	#ifndef _WIN32	1974	#if EV_CHILD_ENABLE
1859	ev_signal_init (&childev, childcb, SIGCHLD);	1975	ev_signal_init (&childev, childcb, SIGCHLD);
1860	ev_set_priority (&childev, EV_MAXPRI);	1976	ev_set_priority (&childev, EV_MAXPRI);
1861	ev_signal_start (EV_A_ &childev);	1977	ev_signal_start (EV_A_ &childev);
1862	ev_unref (EV_A); /* child watcher should not keep loop alive */	1978	ev_unref (EV_A); /* child watcher should not keep loop alive */
1863	#endif	1979	#endif
…		…
1871		1987
1872	void	1988	void
1873	ev_default_destroy (void)	1989	ev_default_destroy (void)
1874	{	1990	{
1875	#if EV_MULTIPLICITY	1991	#if EV_MULTIPLICITY
1876	struct ev_loop *loop = ev_default_loop_ptr;	1992	EV_P = ev_default_loop_ptr;
1877	#endif	1993	#endif
1878		1994
1879	ev_default_loop_ptr = 0;	1995	ev_default_loop_ptr = 0;
1880		1996
1881	#ifndef _WIN32	1997	#if EV_CHILD_ENABLE
1882	ev_ref (EV_A); /* child watcher */	1998	ev_ref (EV_A); /* child watcher */
1883	ev_signal_stop (EV_A_ &childev);	1999	ev_signal_stop (EV_A_ &childev);
1884	#endif	2000	#endif
1885		2001
1886	loop_destroy (EV_A);	2002	loop_destroy (EV_A);
…		…
1888		2004
1889	void	2005	void
1890	ev_default_fork (void)	2006	ev_default_fork (void)
1891	{	2007	{
1892	#if EV_MULTIPLICITY	2008	#if EV_MULTIPLICITY
1893	struct ev_loop *loop = ev_default_loop_ptr;	2009	EV_P = ev_default_loop_ptr;
1894	#endif	2010	#endif
1895		2011
1896	postfork = 1; /* must be in line with ev_loop_fork */	2012	postfork = 1; /* must be in line with ev_loop_fork */
1897	}	2013	}
1898		2014
…		…
1992	EV_FREQUENT_CHECK;	2108	EV_FREQUENT_CHECK;
1993	feed_reverse (EV_A_ (W)w);	2109	feed_reverse (EV_A_ (W)w);
1994	}	2110	}
1995	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2111	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1996		2112
1997	feed_reverse_done (EV_A_ EV_TIMEOUT);	2113	feed_reverse_done (EV_A_ EV_TIMER);
1998	}	2114	}
1999	}	2115	}
2000		2116
2001	#if EV_PERIODIC_ENABLE	2117	#if EV_PERIODIC_ENABLE
2002	/* make periodics pending */	2118	/* make periodics pending */
…		…
2093	ANHE_at_cache (*he);	2209	ANHE_at_cache (*he);
2094	}	2210	}
2095	}	2211	}
2096		2212
2097	/* fetch new monotonic and realtime times from the kernel */	2213	/* fetch new monotonic and realtime times from the kernel */
2098	/* also detetc if there was a timejump, and act accordingly */	2214	/* also detect if there was a timejump, and act accordingly */
2099	inline_speed void	2215	inline_speed void
2100	time_update (EV_P_ ev_tstamp max_block)	2216	time_update (EV_P_ ev_tstamp max_block)
2101	{	2217	{
2102	#if EV_USE_MONOTONIC	2218	#if EV_USE_MONOTONIC
2103	if (expect_true (have_monotonic))	2219	if (expect_true (have_monotonic))
…		…
2163	}	2279	}
2164		2280
2165	void	2281	void
2166	ev_loop (EV_P_ int flags)	2282	ev_loop (EV_P_ int flags)
2167	{	2283	{
2168	#if EV_MINIMAL < 2	2284	#if EV_FEATURE_API
2169	++loop_depth;	2285	++loop_depth;
2170	#endif	2286	#endif
2171		2287
2172	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2288	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2173		2289
…		…
2176	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2292	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2177		2293
2178	do	2294	do
2179	{	2295	{
2180	#if EV_VERIFY >= 2	2296	#if EV_VERIFY >= 2
2181	ev_loop_verify (EV_A);	2297	ev_verify (EV_A);
2182	#endif	2298	#endif
2183		2299
2184	#ifndef _WIN32	2300	#ifndef _WIN32
2185	if (expect_false (curpid)) /* penalise the forking check even more */	2301	if (expect_false (curpid)) /* penalise the forking check even more */
2186	if (expect_false (getpid () != curpid))	2302	if (expect_false (getpid () != curpid))
…		…
2198	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2314	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2199	EV_INVOKE_PENDING;	2315	EV_INVOKE_PENDING;
2200	}	2316	}
2201	#endif	2317	#endif
2202		2318
		2319	#if EV_PREPARE_ENABLE
2203	/* queue prepare watchers (and execute them) */	2320	/* queue prepare watchers (and execute them) */
2204	if (expect_false (preparecnt))	2321	if (expect_false (preparecnt))
2205	{	2322	{
2206	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2323	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2207	EV_INVOKE_PENDING;	2324	EV_INVOKE_PENDING;
2208	}	2325	}
		2326	#endif
2209		2327
2210	if (expect_false (loop_done))	2328	if (expect_false (loop_done))
2211	break;	2329	break;
2212		2330
2213	/* we might have forked, so reify kernel state if necessary */	2331	/* we might have forked, so reify kernel state if necessary */
…		…
2264	waittime -= sleeptime;	2382	waittime -= sleeptime;
2265	}	2383	}
2266	}	2384	}
2267	}	2385	}
2268		2386
2269	#if EV_MINIMAL < 2	2387	#if EV_FEATURE_API
2270	++loop_count;	2388	++loop_count;
2271	#endif	2389	#endif
2272	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2390	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2273	backend_poll (EV_A_ waittime);	2391	backend_poll (EV_A_ waittime);
2274	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2392	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
…		…
2286	#if EV_IDLE_ENABLE	2404	#if EV_IDLE_ENABLE
2287	/* queue idle watchers unless other events are pending */	2405	/* queue idle watchers unless other events are pending */
2288	idle_reify (EV_A);	2406	idle_reify (EV_A);
2289	#endif	2407	#endif
2290		2408
		2409	#if EV_CHECK_ENABLE
2291	/* queue check watchers, to be executed first */	2410	/* queue check watchers, to be executed first */
2292	if (expect_false (checkcnt))	2411	if (expect_false (checkcnt))
2293	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2412	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2413	#endif
2294		2414
2295	EV_INVOKE_PENDING;	2415	EV_INVOKE_PENDING;
2296	}	2416	}
2297	while (expect_true (	2417	while (expect_true (
2298	activecnt	2418	activecnt
…		…
2301	));	2421	));
2302		2422
2303	if (loop_done == EVUNLOOP_ONE)	2423	if (loop_done == EVUNLOOP_ONE)
2304	loop_done = EVUNLOOP_CANCEL;	2424	loop_done = EVUNLOOP_CANCEL;
2305		2425
2306	#if EV_MINIMAL < 2	2426	#if EV_FEATURE_API
2307	--loop_depth;	2427	--loop_depth;
2308	#endif	2428	#endif
2309	}	2429	}
2310		2430
2311	void	2431	void
…		…
2364	inline_size void	2484	inline_size void
2365	wlist_del (WL *head, WL elem)	2485	wlist_del (WL *head, WL elem)
2366	{	2486	{
2367	while (*head)	2487	while (*head)
2368	{	2488	{
2369	if (*head == elem)	2489	if (expect_true (*head == elem))
2370	{	2490	{
2371	*head = elem->next;	2491	*head = elem->next;
2372	return;	2492	break;
2373	}	2493	}
2374		2494
2375	head = &(*head)->next;	2495	head = &(*head)->next;
2376	}	2496	}
2377	}	2497	}
…		…
2437		2557
2438	if (expect_false (ev_is_active (w)))	2558	if (expect_false (ev_is_active (w)))
2439	return;	2559	return;
2440		2560
2441	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2561	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))));	2562	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2443		2563
2444	EV_FREQUENT_CHECK;	2564	EV_FREQUENT_CHECK;
2445		2565
2446	ev_start (EV_A_ (W)w, 1);	2566	ev_start (EV_A_ (W)w, 1);
2447	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2567	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2517	timers [active] = timers [timercnt + HEAP0];	2637	timers [active] = timers [timercnt + HEAP0];
2518	adjustheap (timers, timercnt, active);	2638	adjustheap (timers, timercnt, active);
2519	}	2639	}
2520	}	2640	}
2521		2641
2522	EV_FREQUENT_CHECK;
2523
2524	ev_at (w) -= mn_now;	2642	ev_at (w) -= mn_now;
2525		2643
2526	ev_stop (EV_A_ (W)w);	2644	ev_stop (EV_A_ (W)w);
		2645
		2646	EV_FREQUENT_CHECK;
2527	}	2647	}
2528		2648
2529	void noinline	2649	void noinline
2530	ev_timer_again (EV_P_ ev_timer *w)	2650	ev_timer_again (EV_P_ ev_timer *w)
2531	{	2651	{
…		…
2610	periodics [active] = periodics [periodiccnt + HEAP0];	2730	periodics [active] = periodics [periodiccnt + HEAP0];
2611	adjustheap (periodics, periodiccnt, active);	2731	adjustheap (periodics, periodiccnt, active);
2612	}	2732	}
2613	}	2733	}
2614		2734
2615	EV_FREQUENT_CHECK;
2616
2617	ev_stop (EV_A_ (W)w);	2735	ev_stop (EV_A_ (W)w);
		2736
		2737	EV_FREQUENT_CHECK;
2618	}	2738	}
2619		2739
2620	void noinline	2740	void noinline
2621	ev_periodic_again (EV_P_ ev_periodic *w)	2741	ev_periodic_again (EV_P_ ev_periodic *w)
2622	{	2742	{
…		…
2628		2748
2629	#ifndef SA_RESTART	2749	#ifndef SA_RESTART
2630	# define SA_RESTART 0	2750	# define SA_RESTART 0
2631	#endif	2751	#endif
2632		2752
		2753	#if EV_SIGNAL_ENABLE
		2754
2633	void noinline	2755	void noinline
2634	ev_signal_start (EV_P_ ev_signal *w)	2756	ev_signal_start (EV_P_ ev_signal *w)
2635	{	2757	{
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)))	2758	if (expect_false (ev_is_active (w)))
2640	return;	2759	return;
2641		2760
2642	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2761	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
		2762
		2763	#if EV_MULTIPLICITY
		2764	assert (("libev: a signal must not be attached to two different loops",
		2765	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
		2766
		2767	signals [w->signum - 1].loop = EV_A;
		2768	#endif
2643		2769
2644	EV_FREQUENT_CHECK;	2770	EV_FREQUENT_CHECK;
2645		2771
2646	#if EV_USE_SIGNALFD	2772	#if EV_USE_SIGNALFD
2647	if (sigfd == -2)	2773	if (sigfd == -2)
…		…
2669	sigaddset (&sigfd_set, w->signum);	2795	sigaddset (&sigfd_set, w->signum);
2670	sigprocmask (SIG_BLOCK, &sigfd_set, 0);	2796	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2671		2797
2672	signalfd (sigfd, &sigfd_set, 0);	2798	signalfd (sigfd, &sigfd_set, 0);
2673	}	2799	}
2674	else
2675	#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 EV_USE_SIGNALFD
2689	if (sigfd < 0)/*TODO*/
2690	# endif	2800	#endif
2691	sigdelset (&prev, w->signum);
2692	sigprocmask (SIG_SETMASK, &prev, 0);
2693	#endif
2694	}
2695		2801
2696	ev_start (EV_A_ (W)w, 1);	2802	ev_start (EV_A_ (W)w, 1);
2697	wlist_add (&signals [w->signum - 1].head, (WL)w);	2803	wlist_add (&signals [w->signum - 1].head, (WL)w);
2698		2804
2699	if (!((WL)w)->next)	2805	if (!((WL)w)->next)
2700	{
2701	#if _WIN32
2702	signal (w->signum, ev_sighandler);
2703	#else
2704	# if EV_USE_SIGNALFD	2806	# if EV_USE_SIGNALFD
2705	if (sigfd < 0) /*TODO*/	2807	if (sigfd < 0) /*TODO*/
2706	# endif	2808	# endif
2707	{	2809	{
		2810	# ifdef _WIN32
		2811	evpipe_init (EV_A);
		2812
		2813	signal (w->signum, ev_sighandler);
		2814	# else
2708	struct sigaction sa = { };	2815	struct sigaction sa;
		2816
		2817	evpipe_init (EV_A);
		2818
2709	sa.sa_handler = ev_sighandler;	2819	sa.sa_handler = ev_sighandler;
2710	sigfillset (&sa.sa_mask);	2820	sigfillset (&sa.sa_mask);
2711	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2821	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2712	sigaction (w->signum, &sa, 0);	2822	sigaction (w->signum, &sa, 0);
		2823
		2824	sigemptyset (&sa.sa_mask);
		2825	sigaddset (&sa.sa_mask, w->signum);
		2826	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		2827	#endif
2713	}	2828	}
2714	#endif
2715	}
2716		2829
2717	EV_FREQUENT_CHECK;	2830	EV_FREQUENT_CHECK;
2718	}	2831	}
2719		2832
2720	void noinline	2833	void noinline
…		…
2728		2841
2729	wlist_del (&signals [w->signum - 1].head, (WL)w);	2842	wlist_del (&signals [w->signum - 1].head, (WL)w);
2730	ev_stop (EV_A_ (W)w);	2843	ev_stop (EV_A_ (W)w);
2731		2844
2732	if (!signals [w->signum - 1].head)	2845	if (!signals [w->signum - 1].head)
		2846	{
		2847	#if EV_MULTIPLICITY
		2848	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2849	#endif
2733	#if EV_USE_SIGNALFD	2850	#if EV_USE_SIGNALFD
2734	if (sigfd >= 0)	2851	if (sigfd >= 0)
2735	{	2852	{
2736	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2853	sigset_t ss;
		2854
		2855	sigemptyset (&ss);
		2856	sigaddset (&ss, w->signum);
2737	sigdelset (&sigfd_set, w->signum);	2857	sigdelset (&sigfd_set, w->signum);
		2858
2738	signalfd (sigfd, &sigfd_set, 0);	2859	signalfd (sigfd, &sigfd_set, 0);
2739	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2860	sigprocmask (SIG_UNBLOCK, &ss, 0);
2740	/*TODO: maybe unblock signal? */
2741	}	2861	}
2742	else	2862	else
2743	#endif	2863	#endif
2744	signal (w->signum, SIG_DFL);	2864	signal (w->signum, SIG_DFL);
		2865	}
2745		2866
2746	EV_FREQUENT_CHECK;	2867	EV_FREQUENT_CHECK;
2747	}	2868	}
		2869
		2870	#endif
		2871
		2872	#if EV_CHILD_ENABLE
2748		2873
2749	void	2874	void
2750	ev_child_start (EV_P_ ev_child *w)	2875	ev_child_start (EV_P_ ev_child *w)
2751	{	2876	{
2752	#if EV_MULTIPLICITY	2877	#if EV_MULTIPLICITY
…		…
2756	return;	2881	return;
2757		2882
2758	EV_FREQUENT_CHECK;	2883	EV_FREQUENT_CHECK;
2759		2884
2760	ev_start (EV_A_ (W)w, 1);	2885	ev_start (EV_A_ (W)w, 1);
2761	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2886	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2762		2887
2763	EV_FREQUENT_CHECK;	2888	EV_FREQUENT_CHECK;
2764	}	2889	}
2765		2890
2766	void	2891	void
…		…
2770	if (expect_false (!ev_is_active (w)))	2895	if (expect_false (!ev_is_active (w)))
2771	return;	2896	return;
2772		2897
2773	EV_FREQUENT_CHECK;	2898	EV_FREQUENT_CHECK;
2774		2899
2775	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2900	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2776	ev_stop (EV_A_ (W)w);	2901	ev_stop (EV_A_ (W)w);
2777		2902
2778	EV_FREQUENT_CHECK;	2903	EV_FREQUENT_CHECK;
2779	}	2904	}
		2905
		2906	#endif
2780		2907
2781	#if EV_STAT_ENABLE	2908	#if EV_STAT_ENABLE
2782		2909
2783	# ifdef _WIN32	2910	# ifdef _WIN32
2784	# undef lstat	2911	# undef lstat
…		…
2790	#define MIN_STAT_INTERVAL 0.1074891	2917	#define MIN_STAT_INTERVAL 0.1074891
2791		2918
2792	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2919	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2793		2920
2794	#if EV_USE_INOTIFY	2921	#if EV_USE_INOTIFY
2795	# define EV_INOTIFY_BUFSIZE 8192	2922
		2923	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2924	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2796		2925
2797	static void noinline	2926	static void noinline
2798	infy_add (EV_P_ ev_stat *w)	2927	infy_add (EV_P_ ev_stat *w)
2799	{	2928	{
2800	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);	2929	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);
2801		2930
2802	if (w->wd < 0)	2931	if (w->wd >= 0)
		2932	{
		2933	struct statfs sfs;
		2934
		2935	/* now local changes will be tracked by inotify, but remote changes won't */
		2936	/* unless the filesystem is known to be local, we therefore still poll */
		2937	/* also do poll on <2.6.25, but with normal frequency */
		2938
		2939	if (!fs_2625)
		2940	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2941	else if (!statfs (w->path, &sfs)
		2942	&& (sfs.f_type == 0x1373 /* devfs */
		2943	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2944	|| sfs.f_type == 0x3153464a /* jfs */
		2945	|| sfs.f_type == 0x52654973 /* reiser3 */
		2946	|| sfs.f_type == 0x01021994 /* tempfs */
		2947	|| sfs.f_type == 0x58465342 /* xfs */))
		2948	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2949	else
		2950	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2803	{	2951	}
		2952	else
		2953	{
		2954	/* can't use inotify, continue to stat */
2804	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2955	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2805	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2806		2956
2807	/* monitor some parent directory for speedup hints */	2957	/* if path is not there, monitor some parent directory for speedup hints */
2808	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2958	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2809	/* but an efficiency issue only */	2959	/* but an efficiency issue only */
2810	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2960	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2811	{	2961	{
2812	char path [4096];	2962	char path [4096];
…		…
2828	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2978	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2829	}	2979	}
2830	}	2980	}
2831		2981
2832	if (w->wd >= 0)	2982	if (w->wd >= 0)
2833	{
2834	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2983	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2835		2984
2836	/* now local changes will be tracked by inotify, but remote changes won't */	2985	/* now re-arm timer, if required */
2837	/* unless the filesystem it known to be local, we therefore still poll */	2986	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2838	/* also do poll on <2.6.25, but with normal frequency */
2839	struct statfs sfs;
2840
2841	if (fs_2625 && !statfs (w->path, &sfs))
2842	if (sfs.f_type == 0x1373 /* devfs */
2843	|| sfs.f_type == 0xEF53 /* ext2/3 */
2844	|| sfs.f_type == 0x3153464a /* jfs */
2845	|| sfs.f_type == 0x52654973 /* reiser3 */
2846	|| sfs.f_type == 0x01021994 /* tempfs */
2847	|| sfs.f_type == 0x58465342 /* xfs */)
2848	return;
2849
2850	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2851	ev_timer_again (EV_A_ &w->timer);	2987	ev_timer_again (EV_A_ &w->timer);
2852	}	2988	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2853	}	2989	}
2854		2990
2855	static void noinline	2991	static void noinline
2856	infy_del (EV_P_ ev_stat *w)	2992	infy_del (EV_P_ ev_stat *w)
2857	{	2993	{
…		…
2860		2996
2861	if (wd < 0)	2997	if (wd < 0)
2862	return;	2998	return;
2863		2999
2864	w->wd = -2;	3000	w->wd = -2;
2865	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3001	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2866	wlist_del (&fs_hash [slot].head, (WL)w);	3002	wlist_del (&fs_hash [slot].head, (WL)w);
2867		3003
2868	/* remove this watcher, if others are watching it, they will rearm */	3004	/* remove this watcher, if others are watching it, they will rearm */
2869	inotify_rm_watch (fs_fd, wd);	3005	inotify_rm_watch (fs_fd, wd);
2870	}	3006	}
…		…
2872	static void noinline	3008	static void noinline
2873	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3009	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2874	{	3010	{
2875	if (slot < 0)	3011	if (slot < 0)
2876	/* overflow, need to check for all hash slots */	3012	/* overflow, need to check for all hash slots */
2877	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3013	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2878	infy_wd (EV_A_ slot, wd, ev);	3014	infy_wd (EV_A_ slot, wd, ev);
2879	else	3015	else
2880	{	3016	{
2881	WL w_;	3017	WL w_;
2882		3018
2883	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3019	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2884	{	3020	{
2885	ev_stat *w = (ev_stat *)w_;	3021	ev_stat *w = (ev_stat *)w_;
2886	w_ = w_->next; /* lets us remove this watcher and all before it */	3022	w_ = w_->next; /* lets us remove this watcher and all before it */
2887		3023
2888	if (w->wd == wd || wd == -1)	3024	if (w->wd == wd || wd == -1)
2889	{	3025	{
2890	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3026	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2891	{	3027	{
2892	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3028	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2893	w->wd = -1;	3029	w->wd = -1;
2894	infy_add (EV_A_ w); /* re-add, no matter what */	3030	infy_add (EV_A_ w); /* re-add, no matter what */
2895	}	3031	}
2896		3032
2897	stat_timer_cb (EV_A_ &w->timer, 0);	3033	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2902		3038
2903	static void	3039	static void
2904	infy_cb (EV_P_ ev_io *w, int revents)	3040	infy_cb (EV_P_ ev_io *w, int revents)
2905	{	3041	{
2906	char buf [EV_INOTIFY_BUFSIZE];	3042	char buf [EV_INOTIFY_BUFSIZE];
2907	struct inotify_event *ev = (struct inotify_event *)buf;
2908	int ofs;	3043	int ofs;
2909	int len = read (fs_fd, buf, sizeof (buf));	3044	int len = read (fs_fd, buf, sizeof (buf));
2910		3045
2911	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3046	for (ofs = 0; ofs < len; )
		3047	{
		3048	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2912	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3049	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3050	ofs += sizeof (struct inotify_event) + ev->len;
		3051	}
		3052	}
		3053
		3054	inline_size unsigned int
		3055	ev_linux_version (void)
		3056	{
		3057	struct utsname buf;
		3058	unsigned int v;
		3059	int i;
		3060	char *p = buf.release;
		3061
		3062	if (uname (&buf))
		3063	return 0;
		3064
		3065	for (i = 3+1; --i; )
		3066	{
		3067	unsigned int c = 0;
		3068
		3069	for (;;)
		3070	{
		3071	if (*p >= '0' && *p <= '9')
		3072	c = c * 10 + *p++ - '0';
		3073	else
		3074	{
		3075	p += *p == '.';
		3076	break;
		3077	}
		3078	}
		3079
		3080	v = (v << 8) | c;
		3081	}
		3082
		3083	return v;
2913	}	3084	}
2914		3085
2915	inline_size void	3086	inline_size void
2916	check_2625 (EV_P)	3087	ev_check_2625 (EV_P)
2917	{	3088	{
2918	/* kernels < 2.6.25 are borked	3089	/* kernels < 2.6.25 are borked
2919	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3090	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2920	*/	3091	*/
2921	struct utsname buf;	3092	if (ev_linux_version () < 0x020619)
2922	int major, minor, micro;
2923
2924	if (uname (&buf))
2925	return;	3093	return;
2926		3094
2927	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2928	return;
2929
2930	if (major < 2
2931	|| (major == 2 && minor < 6)
2932	|| (major == 2 && minor == 6 && micro < 25))
2933	return;
2934
2935	fs_2625 = 1;	3095	fs_2625 = 1;
		3096	}
		3097
		3098	inline_size int
		3099	infy_newfd (void)
		3100	{
		3101	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3102	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3103	if (fd >= 0)
		3104	return fd;
		3105	#endif
		3106	return inotify_init ();
2936	}	3107	}
2937		3108
2938	inline_size void	3109	inline_size void
2939	infy_init (EV_P)	3110	infy_init (EV_P)
2940	{	3111	{
2941	if (fs_fd != -2)	3112	if (fs_fd != -2)
2942	return;	3113	return;
2943		3114
2944	fs_fd = -1;	3115	fs_fd = -1;
2945		3116
2946	check_2625 (EV_A);	3117	ev_check_2625 (EV_A);
2947		3118
2948	fs_fd = inotify_init ();	3119	fs_fd = infy_newfd ();
2949		3120
2950	if (fs_fd >= 0)	3121	if (fs_fd >= 0)
2951	{	3122	{
		3123	fd_intern (fs_fd);
2952	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3124	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2953	ev_set_priority (&fs_w, EV_MAXPRI);	3125	ev_set_priority (&fs_w, EV_MAXPRI);
2954	ev_io_start (EV_A_ &fs_w);	3126	ev_io_start (EV_A_ &fs_w);
		3127	ev_unref (EV_A);
2955	}	3128	}
2956	}	3129	}
2957		3130
2958	inline_size void	3131	inline_size void
2959	infy_fork (EV_P)	3132	infy_fork (EV_P)
…		…
2961	int slot;	3134	int slot;
2962		3135
2963	if (fs_fd < 0)	3136	if (fs_fd < 0)
2964	return;	3137	return;
2965		3138
		3139	ev_ref (EV_A);
		3140	ev_io_stop (EV_A_ &fs_w);
2966	close (fs_fd);	3141	close (fs_fd);
2967	fs_fd = inotify_init ();	3142	fs_fd = infy_newfd ();
2968		3143
		3144	if (fs_fd >= 0)
		3145	{
		3146	fd_intern (fs_fd);
		3147	ev_io_set (&fs_w, fs_fd, EV_READ);
		3148	ev_io_start (EV_A_ &fs_w);
		3149	ev_unref (EV_A);
		3150	}
		3151
2969	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3152	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2970	{	3153	{
2971	WL w_ = fs_hash [slot].head;	3154	WL w_ = fs_hash [slot].head;
2972	fs_hash [slot].head = 0;	3155	fs_hash [slot].head = 0;
2973		3156
2974	while (w_)	3157	while (w_)
…		…
2979	w->wd = -1;	3162	w->wd = -1;
2980		3163
2981	if (fs_fd >= 0)	3164	if (fs_fd >= 0)
2982	infy_add (EV_A_ w); /* re-add, no matter what */	3165	infy_add (EV_A_ w); /* re-add, no matter what */
2983	else	3166	else
		3167	{
		3168	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3169	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2984	ev_timer_again (EV_A_ &w->timer);	3170	ev_timer_again (EV_A_ &w->timer);
		3171	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3172	}
2985	}	3173	}
2986	}	3174	}
2987	}	3175	}
2988		3176
2989	#endif	3177	#endif
…		…
3006	static void noinline	3194	static void noinline
3007	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3195	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3008	{	3196	{
3009	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3197	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3010		3198
3011	/* we copy this here each the time so that */	3199	ev_statdata prev = w->attr;
3012	/* prev has the old value when the callback gets invoked */
3013	w->prev = w->attr;
3014	ev_stat_stat (EV_A_ w);	3200	ev_stat_stat (EV_A_ w);
3015		3201
3016	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3202	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3017	if (	3203	if (
3018	w->prev.st_dev != w->attr.st_dev	3204	prev.st_dev != w->attr.st_dev
3019	|| w->prev.st_ino != w->attr.st_ino	3205	|| prev.st_ino != w->attr.st_ino
3020	|| w->prev.st_mode != w->attr.st_mode	3206	|| prev.st_mode != w->attr.st_mode
3021	|| w->prev.st_nlink != w->attr.st_nlink	3207	|| prev.st_nlink != w->attr.st_nlink
3022	|| w->prev.st_uid != w->attr.st_uid	3208	|| prev.st_uid != w->attr.st_uid
3023	|| w->prev.st_gid != w->attr.st_gid	3209	|| prev.st_gid != w->attr.st_gid
3024	|| w->prev.st_rdev != w->attr.st_rdev	3210	|| prev.st_rdev != w->attr.st_rdev
3025	|| w->prev.st_size != w->attr.st_size	3211	|| prev.st_size != w->attr.st_size
3026	|| w->prev.st_atime != w->attr.st_atime	3212	|| prev.st_atime != w->attr.st_atime
3027	|| w->prev.st_mtime != w->attr.st_mtime	3213	|| prev.st_mtime != w->attr.st_mtime
3028	|| w->prev.st_ctime != w->attr.st_ctime	3214	|| prev.st_ctime != w->attr.st_ctime
3029	) {	3215	) {
		3216	/* we only update w->prev on actual differences */
		3217	/* in case we test more often than invoke the callback, */
		3218	/* to ensure that prev is always different to attr */
		3219	w->prev = prev;
		3220
3030	#if EV_USE_INOTIFY	3221	#if EV_USE_INOTIFY
3031	if (fs_fd >= 0)	3222	if (fs_fd >= 0)
3032	{	3223	{
3033	infy_del (EV_A_ w);	3224	infy_del (EV_A_ w);
3034	infy_add (EV_A_ w);	3225	infy_add (EV_A_ w);
…		…
3059		3250
3060	if (fs_fd >= 0)	3251	if (fs_fd >= 0)
3061	infy_add (EV_A_ w);	3252	infy_add (EV_A_ w);
3062	else	3253	else
3063	#endif	3254	#endif
		3255	{
3064	ev_timer_again (EV_A_ &w->timer);	3256	ev_timer_again (EV_A_ &w->timer);
		3257	ev_unref (EV_A);
		3258	}
3065		3259
3066	ev_start (EV_A_ (W)w, 1);	3260	ev_start (EV_A_ (W)w, 1);
3067		3261
3068	EV_FREQUENT_CHECK;	3262	EV_FREQUENT_CHECK;
3069	}	3263	}
…		…
3078	EV_FREQUENT_CHECK;	3272	EV_FREQUENT_CHECK;
3079		3273
3080	#if EV_USE_INOTIFY	3274	#if EV_USE_INOTIFY
3081	infy_del (EV_A_ w);	3275	infy_del (EV_A_ w);
3082	#endif	3276	#endif
		3277
		3278	if (ev_is_active (&w->timer))
		3279	{
		3280	ev_ref (EV_A);
3083	ev_timer_stop (EV_A_ &w->timer);	3281	ev_timer_stop (EV_A_ &w->timer);
		3282	}
3084		3283
3085	ev_stop (EV_A_ (W)w);	3284	ev_stop (EV_A_ (W)w);
3086		3285
3087	EV_FREQUENT_CHECK;	3286	EV_FREQUENT_CHECK;
3088	}	3287	}
…		…
3133		3332
3134	EV_FREQUENT_CHECK;	3333	EV_FREQUENT_CHECK;
3135	}	3334	}
3136	#endif	3335	#endif
3137		3336
		3337	#if EV_PREPARE_ENABLE
3138	void	3338	void
3139	ev_prepare_start (EV_P_ ev_prepare *w)	3339	ev_prepare_start (EV_P_ ev_prepare *w)
3140	{	3340	{
3141	if (expect_false (ev_is_active (w)))	3341	if (expect_false (ev_is_active (w)))
3142	return;	3342	return;
…		…
3168		3368
3169	ev_stop (EV_A_ (W)w);	3369	ev_stop (EV_A_ (W)w);
3170		3370
3171	EV_FREQUENT_CHECK;	3371	EV_FREQUENT_CHECK;
3172	}	3372	}
		3373	#endif
3173		3374
		3375	#if EV_CHECK_ENABLE
3174	void	3376	void
3175	ev_check_start (EV_P_ ev_check *w)	3377	ev_check_start (EV_P_ ev_check *w)
3176	{	3378	{
3177	if (expect_false (ev_is_active (w)))	3379	if (expect_false (ev_is_active (w)))
3178	return;	3380	return;
…		…
3204		3406
3205	ev_stop (EV_A_ (W)w);	3407	ev_stop (EV_A_ (W)w);
3206		3408
3207	EV_FREQUENT_CHECK;	3409	EV_FREQUENT_CHECK;
3208	}	3410	}
		3411	#endif
3209		3412
3210	#if EV_EMBED_ENABLE	3413	#if EV_EMBED_ENABLE
3211	void noinline	3414	void noinline
3212	ev_embed_sweep (EV_P_ ev_embed *w)	3415	ev_embed_sweep (EV_P_ ev_embed *w)
3213	{	3416	{
…		…
3229	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3432	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3230	{	3433	{
3231	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3434	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3232		3435
3233	{	3436	{
3234	struct ev_loop *loop = w->other;	3437	EV_P = w->other;
3235		3438
3236	while (fdchangecnt)	3439	while (fdchangecnt)
3237	{	3440	{
3238	fd_reify (EV_A);	3441	fd_reify (EV_A);
3239	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3442	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
3247	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	3450	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3248		3451
3249	ev_embed_stop (EV_A_ w);	3452	ev_embed_stop (EV_A_ w);
3250		3453
3251	{	3454	{
3252	struct ev_loop *loop = w->other;	3455	EV_P = w->other;
3253		3456
3254	ev_loop_fork (EV_A);	3457	ev_loop_fork (EV_A);
3255	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3458	ev_loop (EV_A_ EVLOOP_NONBLOCK);
3256	}	3459	}
3257		3460
…		…
3271	{	3474	{
3272	if (expect_false (ev_is_active (w)))	3475	if (expect_false (ev_is_active (w)))
3273	return;	3476	return;
3274		3477
3275	{	3478	{
3276	struct ev_loop *loop = w->other;	3479	EV_P = w->other;
3277	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3480	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3278	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3481	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3279	}	3482	}
3280		3483
3281	EV_FREQUENT_CHECK;	3484	EV_FREQUENT_CHECK;
…		…
3308		3511
3309	ev_io_stop (EV_A_ &w->io);	3512	ev_io_stop (EV_A_ &w->io);
3310	ev_prepare_stop (EV_A_ &w->prepare);	3513	ev_prepare_stop (EV_A_ &w->prepare);
3311	ev_fork_stop (EV_A_ &w->fork);	3514	ev_fork_stop (EV_A_ &w->fork);
3312		3515
		3516	ev_stop (EV_A_ (W)w);
		3517
3313	EV_FREQUENT_CHECK;	3518	EV_FREQUENT_CHECK;
3314	}	3519	}
3315	#endif	3520	#endif
3316		3521
3317	#if EV_FORK_ENABLE	3522	#if EV_FORK_ENABLE
…		…
3393		3598
3394	void	3599	void
3395	ev_async_send (EV_P_ ev_async *w)	3600	ev_async_send (EV_P_ ev_async *w)
3396	{	3601	{
3397	w->sent = 1;	3602	w->sent = 1;
3398	evpipe_write (EV_A_ &gotasync);	3603	evpipe_write (EV_A_ &async_pending);
3399	}	3604	}
3400	#endif	3605	#endif
3401		3606
3402	/*****************************************************************************/	3607	/*****************************************************************************/
3403		3608
…		…
3443	{	3648	{
3444	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3649	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3445		3650
3446	if (expect_false (!once))	3651	if (expect_false (!once))
3447	{	3652	{
3448	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3653	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3449	return;	3654	return;
3450	}	3655	}
3451		3656
3452	once->cb = cb;	3657	once->cb = cb;
3453	once->arg = arg;	3658	once->arg = arg;
…		…
3540	if (types & EV_ASYNC)	3745	if (types & EV_ASYNC)
3541	for (i = asynccnt; i--; )	3746	for (i = asynccnt; i--; )
3542	cb (EV_A_ EV_ASYNC, asyncs [i]);	3747	cb (EV_A_ EV_ASYNC, asyncs [i]);
3543	#endif	3748	#endif
3544		3749
		3750	#if EV_PREPARE_ENABLE
3545	if (types & EV_PREPARE)	3751	if (types & EV_PREPARE)
3546	for (i = preparecnt; i--; )	3752	for (i = preparecnt; i--; )
3547	#if EV_EMBED_ENABLE	3753	# if EV_EMBED_ENABLE
3548	if (ev_cb (prepares [i]) != embed_prepare_cb)	3754	if (ev_cb (prepares [i]) != embed_prepare_cb)
3549	#endif	3755	# endif
3550	cb (EV_A_ EV_PREPARE, prepares [i]);	3756	cb (EV_A_ EV_PREPARE, prepares [i]);
		3757	#endif
3551		3758
		3759	#if EV_CHECK_ENABLE
3552	if (types & EV_CHECK)	3760	if (types & EV_CHECK)
3553	for (i = checkcnt; i--; )	3761	for (i = checkcnt; i--; )
3554	cb (EV_A_ EV_CHECK, checks [i]);	3762	cb (EV_A_ EV_CHECK, checks [i]);
		3763	#endif
3555		3764
		3765	#if EV_SIGNAL_ENABLE
3556	if (types & EV_SIGNAL)	3766	if (types & EV_SIGNAL)
3557	for (i = 0; i < signalmax; ++i)	3767	for (i = 0; i < EV_NSIG - 1; ++i)
3558	for (wl = signals [i].head; wl; )	3768	for (wl = signals [i].head; wl; )
3559	{	3769	{
3560	wn = wl->next;	3770	wn = wl->next;
3561	cb (EV_A_ EV_SIGNAL, wl);	3771	cb (EV_A_ EV_SIGNAL, wl);
3562	wl = wn;	3772	wl = wn;
3563	}	3773	}
		3774	#endif
3564		3775
		3776	#if EV_CHILD_ENABLE
3565	if (types & EV_CHILD)	3777	if (types & EV_CHILD)
3566	for (i = EV_PID_HASHSIZE; i--; )	3778	for (i = (EV_PID_HASHSIZE); i--; )
3567	for (wl = childs [i]; wl; )	3779	for (wl = childs [i]; wl; )
3568	{	3780	{
3569	wn = wl->next;	3781	wn = wl->next;
3570	cb (EV_A_ EV_CHILD, wl);	3782	cb (EV_A_ EV_CHILD, wl);
3571	wl = wn;	3783	wl = wn;
3572	}	3784	}
		3785	#endif
3573	/* EV_STAT 0x00001000 /* stat data changed */	3786	/* EV_STAT 0x00001000 /* stat data changed */
3574	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3787	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3575	}	3788	}
3576	#endif	3789	#endif
3577		3790

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