ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.285 by root, Wed Apr 15 19:35:53 2009 UTC vs.
Revision 1.461 by root, Fri Dec 27 06:01:22 2013 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) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0
62# endif 66# endif
63 67
64# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
65# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
66# define EV_USE_MONOTONIC 1 70# define EV_USE_MONOTONIC 1
… …
75# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
76# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
77# endif 81# endif
78# endif 82# endif
79 83
84# if HAVE_NANOSLEEP
80# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
81# if HAVE_NANOSLEEP
82# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
83# else 88# else
89# undef EV_USE_NANOSLEEP
84# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
85# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
86# endif 100# endif
87 101
102# if HAVE_POLL && HAVE_POLL_H
88# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
89# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
90# define EV_USE_SELECT 1
91# else
92# define EV_USE_SELECT 0
93# endif 105# endif
94# endif
95
96# ifndef EV_USE_POLL
97# if HAVE_POLL && HAVE_POLL_H
98# define EV_USE_POLL 1
99# else 106# else
107# undef EV_USE_POLL
100# define EV_USE_POLL 0 108# define EV_USE_POLL 0
101# endif
102# endif 109# endif
103 110
104# ifndef EV_USE_EPOLL
105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
106# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
107# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
108# define EV_USE_EPOLL 0
109# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
110# endif 118# endif
111 119
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
112# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
113# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
114# define EV_USE_KQUEUE 1
115# else
116# define EV_USE_KQUEUE 0
117# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
118# endif 127# endif
119 128
120# ifndef EV_USE_PORT
121# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
122# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
123# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
124# define EV_USE_PORT 0
125# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
126# endif 136# endif
127 137
128# ifndef EV_USE_INOTIFY
129# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
130# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
131# else
132# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
133# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
134# endif 145# endif
135 146
147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
136# ifndef EV_USE_EVENTFD 148# ifndef EV_USE_SIGNALFD
137# if HAVE_EVENTFD 149# define EV_USE_SIGNALFD EV_FEATURE_OS
138# define EV_USE_EVENTFD 1
139# else
140# define EV_USE_EVENTFD 0
141# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
154# endif
155
156# if HAVE_EVENTFD
157# ifndef EV_USE_EVENTFD
158# define EV_USE_EVENTFD EV_FEATURE_OS
159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
142# endif 163# endif
143 164
144#endif 165#endif
145 166
146#include <math.h>
147#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
148#include <fcntl.h> 169#include <fcntl.h>
149#include <stddef.h> 170#include <stddef.h>
150 171
151#include <stdio.h> 172#include <stdio.h>
152 173
153#include <assert.h> 174#include <assert.h>
154#include <errno.h> 175#include <errno.h>
155#include <sys/types.h> 176#include <sys/types.h>
156#include <time.h> 177#include <time.h>
178#include <limits.h>
157 179
158#include <signal.h> 180#include <signal.h>
159 181
160#ifdef EV_H 182#ifdef EV_H
161# include EV_H 183# include EV_H
162#else 184#else
163# include "ev.h" 185# include "ev.h"
186#endif
187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
164#endif 197#endif
165 198
166#ifndef _WIN32 199#ifndef _WIN32
167# include <sys/time.h> 200# include <sys/time.h>
168# include <sys/wait.h> 201# include <sys/wait.h>
169# include <unistd.h> 202# include <unistd.h>
170#else 203#else
171# include <io.h> 204# include <io.h>
172# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
173# include <windows.h> 207# include <windows.h>
174# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
175# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
176# endif 210# endif
211# undef EV_AVOID_STDIO
177#endif 212#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
178 221
179/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
180 223
224/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG
226/* use what's provided */
227#elif defined NSIG
228# define EV_NSIG (NSIG)
229#elif defined _NSIG
230# define EV_NSIG (_NSIG)
231#elif defined SIGMAX
232# define EV_NSIG (SIGMAX+1)
233#elif defined SIG_MAX
234# define EV_NSIG (SIG_MAX+1)
235#elif defined _SIG_MAX
236# define EV_NSIG (_SIG_MAX+1)
237#elif defined MAXSIG
238# define EV_NSIG (MAXSIG+1)
239#elif defined MAX_SIG
240# define EV_NSIG (MAX_SIG+1)
241#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else
246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247#endif
248
249#ifndef EV_USE_FLOOR
250# define EV_USE_FLOOR 0
251#endif
252
181#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
182# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
183# define EV_USE_CLOCK_SYSCALL 1 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
184# else 256# else
185# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
186# endif 258# endif
187#endif 259#endif
188 260
189#ifndef EV_USE_MONOTONIC 261#ifndef EV_USE_MONOTONIC
190# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
191# define EV_USE_MONOTONIC 1 263# define EV_USE_MONOTONIC EV_FEATURE_OS
192# else 264# else
193# define EV_USE_MONOTONIC 0 265# define EV_USE_MONOTONIC 0
194# endif 266# endif
195#endif 267#endif
196 268
… …
198# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 270# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
199#endif 271#endif
200 272
201#ifndef EV_USE_NANOSLEEP 273#ifndef EV_USE_NANOSLEEP
202# if _POSIX_C_SOURCE >= 199309L 274# if _POSIX_C_SOURCE >= 199309L
203# define EV_USE_NANOSLEEP 1 275# define EV_USE_NANOSLEEP EV_FEATURE_OS
204# else 276# else
205# define EV_USE_NANOSLEEP 0 277# define EV_USE_NANOSLEEP 0
206# endif 278# endif
207#endif 279#endif
208 280
209#ifndef EV_USE_SELECT 281#ifndef EV_USE_SELECT
210# define EV_USE_SELECT 1 282# define EV_USE_SELECT EV_FEATURE_BACKENDS
211#endif 283#endif
212 284
213#ifndef EV_USE_POLL 285#ifndef EV_USE_POLL
214# ifdef _WIN32 286# ifdef _WIN32
215# define EV_USE_POLL 0 287# define EV_USE_POLL 0
216# else 288# else
217# define EV_USE_POLL 1 289# define EV_USE_POLL EV_FEATURE_BACKENDS
218# endif 290# endif
219#endif 291#endif
220 292
221#ifndef EV_USE_EPOLL 293#ifndef EV_USE_EPOLL
222# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
223# define EV_USE_EPOLL 1 295# define EV_USE_EPOLL EV_FEATURE_BACKENDS
224# else 296# else
225# define EV_USE_EPOLL 0 297# define EV_USE_EPOLL 0
226# endif 298# endif
227#endif 299#endif
228 300
… …
234# define EV_USE_PORT 0 306# define EV_USE_PORT 0
235#endif 307#endif
236 308
237#ifndef EV_USE_INOTIFY 309#ifndef EV_USE_INOTIFY
238# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
239# define EV_USE_INOTIFY 1 311# define EV_USE_INOTIFY EV_FEATURE_OS
240# else 312# else
241# define EV_USE_INOTIFY 0 313# define EV_USE_INOTIFY 0
242# endif 314# endif
243#endif 315#endif
244 316
245#ifndef EV_PID_HASHSIZE 317#ifndef EV_PID_HASHSIZE
246# if EV_MINIMAL 318# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
247# define EV_PID_HASHSIZE 1
248# else
249# define EV_PID_HASHSIZE 16
250# endif
251#endif 319#endif
252 320
253#ifndef EV_INOTIFY_HASHSIZE 321#ifndef EV_INOTIFY_HASHSIZE
254# if EV_MINIMAL 322# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
255# define EV_INOTIFY_HASHSIZE 1
256# else
257# define EV_INOTIFY_HASHSIZE 16
258# endif
259#endif 323#endif
260 324
261#ifndef EV_USE_EVENTFD 325#ifndef EV_USE_EVENTFD
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 326# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
263# define EV_USE_EVENTFD 1 327# define EV_USE_EVENTFD EV_FEATURE_OS
264# else 328# else
265# define EV_USE_EVENTFD 0 329# define EV_USE_EVENTFD 0
330# endif
331#endif
332
333#ifndef EV_USE_SIGNALFD
334# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
335# define EV_USE_SIGNALFD EV_FEATURE_OS
336# else
337# define EV_USE_SIGNALFD 0
266# endif 338# endif
267#endif 339#endif
268 340
269#if 0 /* debugging */ 341#if 0 /* debugging */
270# define EV_VERIFY 3 342# define EV_VERIFY 3
271# define EV_USE_4HEAP 1 343# define EV_USE_4HEAP 1
272# define EV_HEAP_CACHE_AT 1 344# define EV_HEAP_CACHE_AT 1
273#endif 345#endif
274 346
275#ifndef EV_VERIFY 347#ifndef EV_VERIFY
276# define EV_VERIFY !EV_MINIMAL 348# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
277#endif 349#endif
278 350
279#ifndef EV_USE_4HEAP 351#ifndef EV_USE_4HEAP
280# define EV_USE_4HEAP !EV_MINIMAL 352# define EV_USE_4HEAP EV_FEATURE_DATA
281#endif 353#endif
282 354
283#ifndef EV_HEAP_CACHE_AT 355#ifndef EV_HEAP_CACHE_AT
284# define EV_HEAP_CACHE_AT !EV_MINIMAL 356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357#endif
358
359#ifdef ANDROID
360/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT
362# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL
365# define EV_USE_CLOCK_SYSCALL 0
366#endif
367
368/* aix's poll.h seems to cause lots of trouble */
369#ifdef _AIX
370/* AIX has a completely broken poll.h header */
371# undef EV_USE_POLL
372# define EV_USE_POLL 0
373#endif
374
375/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
376/* which makes programs even slower. might work on other unices, too. */
377#if EV_USE_CLOCK_SYSCALL
378# include <sys/syscall.h>
379# ifdef SYS_clock_gettime
380# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
381# undef EV_USE_MONOTONIC
382# define EV_USE_MONOTONIC 1
383# else
384# undef EV_USE_CLOCK_SYSCALL
385# define EV_USE_CLOCK_SYSCALL 0
386# endif
285#endif 387#endif
286 388
287/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 389/* this block fixes any misconfiguration where we know we run into trouble otherwise */
288 390
289#ifndef CLOCK_MONOTONIC 391#ifndef CLOCK_MONOTONIC
… …
300# undef EV_USE_INOTIFY 402# undef EV_USE_INOTIFY
301# define EV_USE_INOTIFY 0 403# define EV_USE_INOTIFY 0
302#endif 404#endif
303 405
304#if !EV_USE_NANOSLEEP 406#if !EV_USE_NANOSLEEP
305# ifndef _WIN32 407/* hp-ux has it in sys/time.h, which we unconditionally include above */
408# if !defined _WIN32 && !defined __hpux
306# include <sys/select.h> 409# include <sys/select.h>
307# endif 410# endif
308#endif 411#endif
309 412
310#if EV_USE_INOTIFY 413#if EV_USE_INOTIFY
311# include <sys/utsname.h>
312# include <sys/statfs.h> 414# include <sys/statfs.h>
313# include <sys/inotify.h> 415# include <sys/inotify.h>
314/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 416/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
315# ifndef IN_DONT_FOLLOW 417# ifndef IN_DONT_FOLLOW
316# undef EV_USE_INOTIFY 418# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0 419# define EV_USE_INOTIFY 0
318# endif 420# endif
319#endif 421#endif
320 422
321#if EV_SELECT_IS_WINSOCKET
322# include <winsock.h>
323#endif
324
325/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
326/* which makes programs even slower. might work on other unices, too. */
327#if EV_USE_CLOCK_SYSCALL
328# include <syscall.h>
329# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
330# undef EV_USE_MONOTONIC
331# define EV_USE_MONOTONIC 1
332#endif
333
334#if EV_USE_EVENTFD 423#if EV_USE_EVENTFD
335/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 424/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336# include <stdint.h> 425# include <stdint.h>
337# ifdef __cplusplus 426# ifndef EFD_NONBLOCK
338extern "C" { 427# define EFD_NONBLOCK O_NONBLOCK
339# endif 428# endif
340int eventfd (unsigned int initval, int flags); 429# ifndef EFD_CLOEXEC
341# ifdef __cplusplus 430# ifdef O_CLOEXEC
342} 431# define EFD_CLOEXEC O_CLOEXEC
432# else
433# define EFD_CLOEXEC 02000000
434# endif
343# endif 435# endif
436EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
437#endif
438
439#if EV_USE_SIGNALFD
440/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
441# include <stdint.h>
442# ifndef SFD_NONBLOCK
443# define SFD_NONBLOCK O_NONBLOCK
444# endif
445# ifndef SFD_CLOEXEC
446# ifdef O_CLOEXEC
447# define SFD_CLOEXEC O_CLOEXEC
448# else
449# define SFD_CLOEXEC 02000000
450# endif
451# endif
452EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
453
454struct signalfd_siginfo
455{
456 uint32_t ssi_signo;
457 char pad[128 - sizeof (uint32_t)];
458};
344#endif 459#endif
345 460
346/**/ 461/**/
347 462
348#if EV_VERIFY >= 3 463#if EV_VERIFY >= 3
349# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 464# define EV_FREQUENT_CHECK ev_verify (EV_A)
350#else 465#else
351# define EV_FREQUENT_CHECK do { } while (0) 466# define EV_FREQUENT_CHECK do { } while (0)
352#endif 467#endif
353 468
354/* 469/*
355 * This is used to avoid floating point rounding problems. 470 * This is used to work around floating point rounding problems.
356 * It is added to ev_rt_now when scheduling periodics
357 * to ensure progress, time-wise, even when rounding
358 * errors are against us.
359 * This value is good at least till the year 4000. 471 * This value is good at least till the year 4000.
360 * Better solutions welcome.
361 */ 472 */
362#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 473#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
474/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
363 475
364#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 476#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
365#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 477#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
366/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
367 478
479#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
480#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
481
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */
484/*
485 * libecb - http://software.schmorp.de/pkg/libecb
486 *
487 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved.
490 *
491 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met:
493 *
494 * 1. Redistributions of source code must retain the above copyright notice,
495 * this list of conditions and the following disclaimer.
496 *
497 * 2. Redistributions in binary form must reproduce the above copyright
498 * notice, this list of conditions and the following disclaimer in the
499 * documentation and/or other materials provided with the distribution.
500 *
501 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
502 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
503 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
504 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
505 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
506 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
509 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510 * OF THE POSSIBILITY OF SUCH DAMAGE.
511 */
512
513#ifndef ECB_H
514#define ECB_H
515
516/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003
518
519#ifdef _WIN32
520 typedef signed char int8_t;
521 typedef unsigned char uint8_t;
522 typedef signed short int16_t;
523 typedef unsigned short uint16_t;
524 typedef signed int int32_t;
525 typedef unsigned int uint32_t;
368#if __GNUC__ >= 4 526 #if __GNUC__
369# define expect(expr,value) __builtin_expect ((expr),(value)) 527 typedef signed long long int64_t;
370# define noinline __attribute__ ((noinline)) 528 typedef unsigned long long uint64_t;
529 #else /* _MSC_VER || __BORLANDC__ */
530 typedef signed __int64 int64_t;
531 typedef unsigned __int64 uint64_t;
532 #endif
533 #ifdef _WIN64
534 #define ECB_PTRSIZE 8
535 typedef uint64_t uintptr_t;
536 typedef int64_t intptr_t;
537 #else
538 #define ECB_PTRSIZE 4
539 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t;
541 #endif
371#else 542#else
372# define expect(expr,value) (expr) 543 #include <inttypes.h>
373# define noinline 544 #if UINTMAX_MAX > 0xffffffffU
374# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 545 #define ECB_PTRSIZE 8
375# define inline 546 #else
547 #define ECB_PTRSIZE 4
548 #endif
376# endif 549#endif
550
551/* work around x32 idiocy by defining proper macros */
552#if __x86_64 || _M_AMD64
553 #if _ILP32
554 #define ECB_AMD64_X32 1
555 #else
556 #define ECB_AMD64 1
377#endif 557 #endif
558#endif
378 559
560/* many compilers define _GNUC_ to some versions but then only implement
561 * what their idiot authors think are the "more important" extensions,
562 * causing enormous grief in return for some better fake benchmark numbers.
563 * or so.
564 * we try to detect these and simply assume they are not gcc - if they have
565 * an issue with that they should have done it right in the first place.
566 */
567#ifndef ECB_GCC_VERSION
568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
569 #define ECB_GCC_VERSION(major,minor) 0
570 #else
571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572 #endif
573#endif
574
575#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
576#define ECB_C99 (__STDC_VERSION__ >= 199901L)
577#define ECB_C11 (__STDC_VERSION__ >= 201112L)
578#define ECB_CPP (__cplusplus+0)
579#define ECB_CPP11 (__cplusplus >= 201103L)
580
581#if ECB_CPP
582 #define ECB_EXTERN_C extern "C"
583 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584 #define ECB_EXTERN_C_END }
585#else
586 #define ECB_EXTERN_C extern
587 #define ECB_EXTERN_C_BEG
588 #define ECB_EXTERN_C_END
589#endif
590
591/*****************************************************************************/
592
593/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
594/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
595
596#if ECB_NO_THREADS
597 #define ECB_NO_SMP 1
598#endif
599
600#if ECB_NO_SMP
601 #define ECB_MEMORY_FENCE do { } while (0)
602#endif
603
604#ifndef ECB_MEMORY_FENCE
605 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
606 #if __i386 || __i386__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
614 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
616 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
619 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
622 #elif __sparc || __sparc__
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
624 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626 #elif defined __s390__ || defined __s390x__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
628 #elif defined __mips__
629 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
630 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
631 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
632 #elif defined __alpha__
633 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
634 #elif defined __hppa__
635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
636 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
637 #elif defined __ia64__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
639 #elif defined __m68k__
640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
641 #elif defined __m88k__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
643 #elif defined __sh__
644 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
645 #endif
646 #endif
647#endif
648
649#ifndef ECB_MEMORY_FENCE
650 #if ECB_GCC_VERSION(4,7)
651 /* see comment below (stdatomic.h) about the C11 memory model. */
652 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
653
654 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
655 * without risking compile time errors with other compilers. We *could*
656 * define our own ecb_clang_has_feature, but I just can't be bothered to work
657 * around this shit time and again.
658 * #elif defined __clang && __has_feature (cxx_atomic)
659 * // see comment below (stdatomic.h) about the C11 memory model.
660 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661 */
662
663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664 #define ECB_MEMORY_FENCE __sync_synchronize ()
665 #elif _MSC_VER >= 1400 /* VC++ 2005 */
666 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
667 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
668 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
669 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
670 #elif defined _WIN32
671 #include <WinNT.h>
672 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
673 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
674 #include <mbarrier.h>
675 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
676 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
677 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
678 #elif __xlC__
679 #define ECB_MEMORY_FENCE __sync ()
680 #endif
681#endif
682
683#ifndef ECB_MEMORY_FENCE
684 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
685 /* we assume that these memory fences work on all variables/all memory accesses, */
686 /* not just C11 atomics and atomic accesses */
687 #include <stdatomic.h>
688 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
689 /* any fence other than seq_cst, which isn't very efficient for us. */
690 /* Why that is, we don't know - either the C11 memory model is quite useless */
691 /* for most usages, or gcc and clang have a bug */
692 /* I *currently* lean towards the latter, and inefficiently implement */
693 /* all three of ecb's fences as a seq_cst fence */
694 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
695 #endif
696#endif
697
698#ifndef ECB_MEMORY_FENCE
699 #if !ECB_AVOID_PTHREADS
700 /*
701 * if you get undefined symbol references to pthread_mutex_lock,
702 * or failure to find pthread.h, then you should implement
703 * the ECB_MEMORY_FENCE operations for your cpu/compiler
704 * OR provide pthread.h and link against the posix thread library
705 * of your system.
706 */
707 #include <pthread.h>
708 #define ECB_NEEDS_PTHREADS 1
709 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
710
711 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
712 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
713 #endif
714#endif
715
716#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
717 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
718#endif
719
720#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
721 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
722#endif
723
724/*****************************************************************************/
725
726#if __cplusplus
727 #define ecb_inline static inline
728#elif ECB_GCC_VERSION(2,5)
729 #define ecb_inline static __inline__
730#elif ECB_C99
731 #define ecb_inline static inline
732#else
733 #define ecb_inline static
734#endif
735
736#if ECB_GCC_VERSION(3,3)
737 #define ecb_restrict __restrict__
738#elif ECB_C99
739 #define ecb_restrict restrict
740#else
741 #define ecb_restrict
742#endif
743
744typedef int ecb_bool;
745
746#define ECB_CONCAT_(a, b) a ## b
747#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
748#define ECB_STRINGIFY_(a) # a
749#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
750
751#define ecb_function_ ecb_inline
752
753#if ECB_GCC_VERSION(3,1)
754 #define ecb_attribute(attrlist) __attribute__(attrlist)
755 #define ecb_is_constant(expr) __builtin_constant_p (expr)
756 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
757 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
758#else
759 #define ecb_attribute(attrlist)
760 #define ecb_is_constant(expr) 0
761 #define ecb_expect(expr,value) (expr)
762 #define ecb_prefetch(addr,rw,locality)
763#endif
764
765/* no emulation for ecb_decltype */
766#if ECB_GCC_VERSION(4,5)
767 #define ecb_decltype(x) __decltype(x)
768#elif ECB_GCC_VERSION(3,0)
769 #define ecb_decltype(x) __typeof(x)
770#endif
771
772#define ecb_noinline ecb_attribute ((__noinline__))
773#define ecb_unused ecb_attribute ((__unused__))
774#define ecb_const ecb_attribute ((__const__))
775#define ecb_pure ecb_attribute ((__pure__))
776
777#if ECB_C11
778 #define ecb_noreturn _Noreturn
779#else
780 #define ecb_noreturn ecb_attribute ((__noreturn__))
781#endif
782
783#if ECB_GCC_VERSION(4,3)
784 #define ecb_artificial ecb_attribute ((__artificial__))
785 #define ecb_hot ecb_attribute ((__hot__))
786 #define ecb_cold ecb_attribute ((__cold__))
787#else
788 #define ecb_artificial
789 #define ecb_hot
790 #define ecb_cold
791#endif
792
793/* put around conditional expressions if you are very sure that the */
794/* expression is mostly true or mostly false. note that these return */
795/* booleans, not the expression. */
379#define expect_false(expr) expect ((expr) != 0, 0) 796#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
380#define expect_true(expr) expect ((expr) != 0, 1) 797#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
798/* for compatibility to the rest of the world */
799#define ecb_likely(expr) ecb_expect_true (expr)
800#define ecb_unlikely(expr) ecb_expect_false (expr)
801
802/* count trailing zero bits and count # of one bits */
803#if ECB_GCC_VERSION(3,4)
804 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
805 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
806 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
807 #define ecb_ctz32(x) __builtin_ctz (x)
808 #define ecb_ctz64(x) __builtin_ctzll (x)
809 #define ecb_popcount32(x) __builtin_popcount (x)
810 /* no popcountll */
811#else
812 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
813 ecb_function_ int
814 ecb_ctz32 (uint32_t x)
815 {
816 int r = 0;
817
818 x &= ~x + 1; /* this isolates the lowest bit */
819
820#if ECB_branchless_on_i386
821 r += !!(x & 0xaaaaaaaa) << 0;
822 r += !!(x & 0xcccccccc) << 1;
823 r += !!(x & 0xf0f0f0f0) << 2;
824 r += !!(x & 0xff00ff00) << 3;
825 r += !!(x & 0xffff0000) << 4;
826#else
827 if (x & 0xaaaaaaaa) r += 1;
828 if (x & 0xcccccccc) r += 2;
829 if (x & 0xf0f0f0f0) r += 4;
830 if (x & 0xff00ff00) r += 8;
831 if (x & 0xffff0000) r += 16;
832#endif
833
834 return r;
835 }
836
837 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
838 ecb_function_ int
839 ecb_ctz64 (uint64_t x)
840 {
841 int shift = x & 0xffffffffU ? 0 : 32;
842 return ecb_ctz32 (x >> shift) + shift;
843 }
844
845 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
846 ecb_function_ int
847 ecb_popcount32 (uint32_t x)
848 {
849 x -= (x >> 1) & 0x55555555;
850 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
851 x = ((x >> 4) + x) & 0x0f0f0f0f;
852 x *= 0x01010101;
853
854 return x >> 24;
855 }
856
857 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
858 ecb_function_ int ecb_ld32 (uint32_t x)
859 {
860 int r = 0;
861
862 if (x >> 16) { x >>= 16; r += 16; }
863 if (x >> 8) { x >>= 8; r += 8; }
864 if (x >> 4) { x >>= 4; r += 4; }
865 if (x >> 2) { x >>= 2; r += 2; }
866 if (x >> 1) { r += 1; }
867
868 return r;
869 }
870
871 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
872 ecb_function_ int ecb_ld64 (uint64_t x)
873 {
874 int r = 0;
875
876 if (x >> 32) { x >>= 32; r += 32; }
877
878 return r + ecb_ld32 (x);
879 }
880#endif
881
882ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
883ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
884ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
885ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
886
887ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
888ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
889{
890 return ( (x * 0x0802U & 0x22110U)
891 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
892}
893
894ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
895ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
896{
897 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
898 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
899 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
900 x = ( x >> 8 ) | ( x << 8);
901
902 return x;
903}
904
905ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
906ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
907{
908 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
909 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
910 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
911 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
912 x = ( x >> 16 ) | ( x << 16);
913
914 return x;
915}
916
917/* popcount64 is only available on 64 bit cpus as gcc builtin */
918/* so for this version we are lazy */
919ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
920ecb_function_ int
921ecb_popcount64 (uint64_t x)
922{
923 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
924}
925
926ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
927ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
928ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
929ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
930ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
931ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
932ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
933ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
934
935ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
936ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
937ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
938ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
939ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
940ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
941ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
942ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
943
944#if ECB_GCC_VERSION(4,3)
945 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
946 #define ecb_bswap32(x) __builtin_bswap32 (x)
947 #define ecb_bswap64(x) __builtin_bswap64 (x)
948#else
949 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
950 ecb_function_ uint16_t
951 ecb_bswap16 (uint16_t x)
952 {
953 return ecb_rotl16 (x, 8);
954 }
955
956 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
957 ecb_function_ uint32_t
958 ecb_bswap32 (uint32_t x)
959 {
960 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
961 }
962
963 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
964 ecb_function_ uint64_t
965 ecb_bswap64 (uint64_t x)
966 {
967 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
968 }
969#endif
970
971#if ECB_GCC_VERSION(4,5)
972 #define ecb_unreachable() __builtin_unreachable ()
973#else
974 /* this seems to work fine, but gcc always emits a warning for it :/ */
975 ecb_inline void ecb_unreachable (void) ecb_noreturn;
976 ecb_inline void ecb_unreachable (void) { }
977#endif
978
979/* try to tell the compiler that some condition is definitely true */
980#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
981
982ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
983ecb_inline unsigned char
984ecb_byteorder_helper (void)
985{
986 /* the union code still generates code under pressure in gcc, */
987 /* but less than using pointers, and always seems to */
988 /* successfully return a constant. */
989 /* the reason why we have this horrible preprocessor mess */
990 /* is to avoid it in all cases, at least on common architectures */
991 /* or when using a recent enough gcc version (>= 4.6) */
992#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
993 return 0x44;
994#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
995 return 0x44;
996#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
997 return 0x11;
998#else
999 union
1000 {
1001 uint32_t i;
1002 uint8_t c;
1003 } u = { 0x11223344 };
1004 return u.c;
1005#endif
1006}
1007
1008ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
1009ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1010ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
1011ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1012
1013#if ECB_GCC_VERSION(3,0) || ECB_C99
1014 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1015#else
1016 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1017#endif
1018
1019#if __cplusplus
1020 template<typename T>
1021 static inline T ecb_div_rd (T val, T div)
1022 {
1023 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1024 }
1025 template<typename T>
1026 static inline T ecb_div_ru (T val, T div)
1027 {
1028 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1029 }
1030#else
1031 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1032 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1033#endif
1034
1035#if ecb_cplusplus_does_not_suck
1036 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1037 template<typename T, int N>
1038 static inline int ecb_array_length (const T (&arr)[N])
1039 {
1040 return N;
1041 }
1042#else
1043 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1044#endif
1045
1046/*******************************************************************************/
1047/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1048
1049/* basically, everything uses "ieee pure-endian" floating point numbers */
1050/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1051#if 0 \
1052 || __i386 || __i386__ \
1053 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1054 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1055 || defined __arm__ && defined __ARM_EABI__ \
1056 || defined __s390__ || defined __s390x__ \
1057 || defined __mips__ \
1058 || defined __alpha__ \
1059 || defined __hppa__ \
1060 || defined __ia64__ \
1061 || defined __m68k__ \
1062 || defined __m88k__ \
1063 || defined __sh__ \
1064 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1065 #define ECB_STDFP 1
1066 #include <string.h> /* for memcpy */
1067#else
1068 #define ECB_STDFP 0
1069#endif
1070
1071#ifndef ECB_NO_LIBM
1072
1073 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1074
1075 #ifdef NEN
1076 #define ECB_NAN NAN
1077 #else
1078 #define ECB_NAN INFINITY
1079 #endif
1080
1081 /* converts an ieee half/binary16 to a float */
1082 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1083 ecb_function_ float
1084 ecb_binary16_to_float (uint16_t x)
1085 {
1086 int e = (x >> 10) & 0x1f;
1087 int m = x & 0x3ff;
1088 float r;
1089
1090 if (!e ) r = ldexpf (m , -24);
1091 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1092 else if (m ) r = ECB_NAN;
1093 else r = INFINITY;
1094
1095 return x & 0x8000 ? -r : r;
1096 }
1097
1098 /* convert a float to ieee single/binary32 */
1099 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1100 ecb_function_ uint32_t
1101 ecb_float_to_binary32 (float x)
1102 {
1103 uint32_t r;
1104
1105 #if ECB_STDFP
1106 memcpy (&r, &x, 4);
1107 #else
1108 /* slow emulation, works for anything but -0 */
1109 uint32_t m;
1110 int e;
1111
1112 if (x == 0e0f ) return 0x00000000U;
1113 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1114 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1115 if (x != x ) return 0x7fbfffffU;
1116
1117 m = frexpf (x, &e) * 0x1000000U;
1118
1119 r = m & 0x80000000U;
1120
1121 if (r)
1122 m = -m;
1123
1124 if (e <= -126)
1125 {
1126 m &= 0xffffffU;
1127 m >>= (-125 - e);
1128 e = -126;
1129 }
1130
1131 r |= (e + 126) << 23;
1132 r |= m & 0x7fffffU;
1133 #endif
1134
1135 return r;
1136 }
1137
1138 /* converts an ieee single/binary32 to a float */
1139 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1140 ecb_function_ float
1141 ecb_binary32_to_float (uint32_t x)
1142 {
1143 float r;
1144
1145 #if ECB_STDFP
1146 memcpy (&r, &x, 4);
1147 #else
1148 /* emulation, only works for normals and subnormals and +0 */
1149 int neg = x >> 31;
1150 int e = (x >> 23) & 0xffU;
1151
1152 x &= 0x7fffffU;
1153
1154 if (e)
1155 x |= 0x800000U;
1156 else
1157 e = 1;
1158
1159 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1160 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1161
1162 r = neg ? -r : r;
1163 #endif
1164
1165 return r;
1166 }
1167
1168 /* convert a double to ieee double/binary64 */
1169 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1170 ecb_function_ uint64_t
1171 ecb_double_to_binary64 (double x)
1172 {
1173 uint64_t r;
1174
1175 #if ECB_STDFP
1176 memcpy (&r, &x, 8);
1177 #else
1178 /* slow emulation, works for anything but -0 */
1179 uint64_t m;
1180 int e;
1181
1182 if (x == 0e0 ) return 0x0000000000000000U;
1183 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1184 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1185 if (x != x ) return 0X7ff7ffffffffffffU;
1186
1187 m = frexp (x, &e) * 0x20000000000000U;
1188
1189 r = m & 0x8000000000000000;;
1190
1191 if (r)
1192 m = -m;
1193
1194 if (e <= -1022)
1195 {
1196 m &= 0x1fffffffffffffU;
1197 m >>= (-1021 - e);
1198 e = -1022;
1199 }
1200
1201 r |= ((uint64_t)(e + 1022)) << 52;
1202 r |= m & 0xfffffffffffffU;
1203 #endif
1204
1205 return r;
1206 }
1207
1208 /* converts an ieee double/binary64 to a double */
1209 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1210 ecb_function_ double
1211 ecb_binary64_to_double (uint64_t x)
1212 {
1213 double r;
1214
1215 #if ECB_STDFP
1216 memcpy (&r, &x, 8);
1217 #else
1218 /* emulation, only works for normals and subnormals and +0 */
1219 int neg = x >> 63;
1220 int e = (x >> 52) & 0x7ffU;
1221
1222 x &= 0xfffffffffffffU;
1223
1224 if (e)
1225 x |= 0x10000000000000U;
1226 else
1227 e = 1;
1228
1229 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1230 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1231
1232 r = neg ? -r : r;
1233 #endif
1234
1235 return r;
1236 }
1237
1238#endif
1239
1240#endif
1241
1242/* ECB.H END */
1243
1244#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1245/* if your architecture doesn't need memory fences, e.g. because it is
1246 * single-cpu/core, or if you use libev in a project that doesn't use libev
1247 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1248 * libev, in which cases the memory fences become nops.
1249 * alternatively, you can remove this #error and link against libpthread,
1250 * which will then provide the memory fences.
1251 */
1252# error "memory fences not defined for your architecture, please report"
1253#endif
1254
1255#ifndef ECB_MEMORY_FENCE
1256# define ECB_MEMORY_FENCE do { } while (0)
1257# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1258# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1259#endif
1260
1261#define expect_false(cond) ecb_expect_false (cond)
1262#define expect_true(cond) ecb_expect_true (cond)
1263#define noinline ecb_noinline
1264
381#define inline_size static inline 1265#define inline_size ecb_inline
382 1266
383#if EV_MINIMAL 1267#if EV_FEATURE_CODE
1268# define inline_speed ecb_inline
1269#else
384# define inline_speed static noinline 1270# define inline_speed static noinline
1271#endif
1272
1273#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1274
1275#if EV_MINPRI == EV_MAXPRI
1276# define ABSPRI(w) (((W)w), 0)
385#else 1277#else
386# define inline_speed static inline
387#endif
388
389#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
390#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1278# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1279#endif
391 1280
392#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1281#define EMPTY /* required for microsofts broken pseudo-c compiler */
393#define EMPTY2(a,b) /* used to suppress some warnings */ 1282#define EMPTY2(a,b) /* used to suppress some warnings */
394 1283
395typedef ev_watcher *W; 1284typedef ev_watcher *W;
… …
399#define ev_active(w) ((W)(w))->active 1288#define ev_active(w) ((W)(w))->active
400#define ev_at(w) ((WT)(w))->at 1289#define ev_at(w) ((WT)(w))->at
401 1290
402#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
403/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1292/* sig_atomic_t is used to avoid per-thread variables or locking but still */
404/* giving it a reasonably high chance of working on typical architetcures */ 1293/* giving it a reasonably high chance of working on typical architectures */
405static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1294static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
406#endif 1295#endif
407 1296
408#if EV_USE_MONOTONIC 1297#if EV_USE_MONOTONIC
409static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1298static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
410#endif 1299#endif
411 1300
1301#ifndef EV_FD_TO_WIN32_HANDLE
1302# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
1303#endif
1304#ifndef EV_WIN32_HANDLE_TO_FD
1305# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
1306#endif
1307#ifndef EV_WIN32_CLOSE_FD
1308# define EV_WIN32_CLOSE_FD(fd) close (fd)
1309#endif
1310
412#ifdef _WIN32 1311#ifdef _WIN32
413# include "ev_win32.c" 1312# include "ev_win32.c"
414#endif 1313#endif
415 1314
416/*****************************************************************************/ 1315/*****************************************************************************/
417 1316
1317/* define a suitable floor function (only used by periodics atm) */
1318
1319#if EV_USE_FLOOR
1320# include <math.h>
1321# define ev_floor(v) floor (v)
1322#else
1323
1324#include <float.h>
1325
1326/* a floor() replacement function, should be independent of ev_tstamp type */
1327static ev_tstamp noinline
1328ev_floor (ev_tstamp v)
1329{
1330 /* the choice of shift factor is not terribly important */
1331#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1332 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1333#else
1334 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1335#endif
1336
1337 /* argument too large for an unsigned long? */
1338 if (expect_false (v >= shift))
1339 {
1340 ev_tstamp f;
1341
1342 if (v == v - 1.)
1343 return v; /* very large number */
1344
1345 f = shift * ev_floor (v * (1. / shift));
1346 return f + ev_floor (v - f);
1347 }
1348
1349 /* special treatment for negative args? */
1350 if (expect_false (v < 0.))
1351 {
1352 ev_tstamp f = -ev_floor (-v);
1353
1354 return f - (f == v ? 0 : 1);
1355 }
1356
1357 /* fits into an unsigned long */
1358 return (unsigned long)v;
1359}
1360
1361#endif
1362
1363/*****************************************************************************/
1364
1365#ifdef __linux
1366# include <sys/utsname.h>
1367#endif
1368
1369static unsigned int noinline ecb_cold
1370ev_linux_version (void)
1371{
1372#ifdef __linux
1373 unsigned int v = 0;
1374 struct utsname buf;
1375 int i;
1376 char *p = buf.release;
1377
1378 if (uname (&buf))
1379 return 0;
1380
1381 for (i = 3+1; --i; )
1382 {
1383 unsigned int c = 0;
1384
1385 for (;;)
1386 {
1387 if (*p >= '0' && *p <= '9')
1388 c = c * 10 + *p++ - '0';
1389 else
1390 {
1391 p += *p == '.';
1392 break;
1393 }
1394 }
1395
1396 v = (v << 8) | c;
1397 }
1398
1399 return v;
1400#else
1401 return 0;
1402#endif
1403}
1404
1405/*****************************************************************************/
1406
1407#if EV_AVOID_STDIO
1408static void noinline ecb_cold
1409ev_printerr (const char *msg)
1410{
1411 write (STDERR_FILENO, msg, strlen (msg));
1412}
1413#endif
1414
418static void (*syserr_cb)(const char *msg); 1415static void (*syserr_cb)(const char *msg) EV_THROW;
419 1416
420void 1417void ecb_cold
421ev_set_syserr_cb (void (*cb)(const char *msg)) 1418ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
422{ 1419{
423 syserr_cb = cb; 1420 syserr_cb = cb;
424} 1421}
425 1422
426static void noinline 1423static void noinline ecb_cold
427ev_syserr (const char *msg) 1424ev_syserr (const char *msg)
428{ 1425{
429 if (!msg) 1426 if (!msg)
430 msg = "(libev) system error"; 1427 msg = "(libev) system error";
431 1428
432 if (syserr_cb) 1429 if (syserr_cb)
433 syserr_cb (msg); 1430 syserr_cb (msg);
434 else 1431 else
435 { 1432 {
1433#if EV_AVOID_STDIO
1434 ev_printerr (msg);
1435 ev_printerr (": ");
1436 ev_printerr (strerror (errno));
1437 ev_printerr ("\n");
1438#else
436 perror (msg); 1439 perror (msg);
1440#endif
437 abort (); 1441 abort ();
438 } 1442 }
439} 1443}
440 1444
441static void * 1445static void *
442ev_realloc_emul (void *ptr, long size) 1446ev_realloc_emul (void *ptr, long size) EV_THROW
443{ 1447{
444 /* some systems, notably openbsd and darwin, fail to properly 1448 /* some systems, notably openbsd and darwin, fail to properly
445 * implement realloc (x, 0) (as required by both ansi c-98 and 1449 * implement realloc (x, 0) (as required by both ansi c-89 and
446 * the single unix specification, so work around them here. 1450 * the single unix specification, so work around them here.
1451 * recently, also (at least) fedora and debian started breaking it,
1452 * despite documenting it otherwise.
447 */ 1453 */
448 1454
449 if (size) 1455 if (size)
450 return realloc (ptr, size); 1456 return realloc (ptr, size);
451 1457
452 free (ptr); 1458 free (ptr);
453 return 0; 1459 return 0;
454} 1460}
455 1461
456static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1462static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
457 1463
458void 1464void ecb_cold
459ev_set_allocator (void *(*cb)(void *ptr, long size)) 1465ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
460{ 1466{
461 alloc = cb; 1467 alloc = cb;
462} 1468}
463 1469
464inline_speed void * 1470inline_speed void *
… …
466{ 1472{
467 ptr = alloc (ptr, size); 1473 ptr = alloc (ptr, size);
468 1474
469 if (!ptr && size) 1475 if (!ptr && size)
470 { 1476 {
1477#if EV_AVOID_STDIO
1478 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1479#else
471 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1480 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1481#endif
472 abort (); 1482 abort ();
473 } 1483 }
474 1484
475 return ptr; 1485 return ptr;
476} 1486}
… …
478#define ev_malloc(size) ev_realloc (0, (size)) 1488#define ev_malloc(size) ev_realloc (0, (size))
479#define ev_free(ptr) ev_realloc ((ptr), 0) 1489#define ev_free(ptr) ev_realloc ((ptr), 0)
480 1490
481/*****************************************************************************/ 1491/*****************************************************************************/
482 1492
1493/* set in reify when reification needed */
1494#define EV_ANFD_REIFY 1
1495
1496/* file descriptor info structure */
483typedef struct 1497typedef struct
484{ 1498{
485 WL head; 1499 WL head;
486 unsigned char events; 1500 unsigned char events; /* the events watched for */
487 unsigned char reify; 1501 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
488 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1502 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
489 unsigned char unused; 1503 unsigned char unused;
490#if EV_USE_EPOLL 1504#if EV_USE_EPOLL
491 unsigned int egen; /* generation counter to counter epoll bugs */ 1505 unsigned int egen; /* generation counter to counter epoll bugs */
492#endif 1506#endif
493#if EV_SELECT_IS_WINSOCKET 1507#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
494 SOCKET handle; 1508 SOCKET handle;
495#endif 1509#endif
1510#if EV_USE_IOCP
1511 OVERLAPPED or, ow;
1512#endif
496} ANFD; 1513} ANFD;
497 1514
1515/* stores the pending event set for a given watcher */
498typedef struct 1516typedef struct
499{ 1517{
500 W w; 1518 W w;
501 int events; 1519 int events; /* the pending event set for the given watcher */
502} ANPENDING; 1520} ANPENDING;
503 1521
504#if EV_USE_INOTIFY 1522#if EV_USE_INOTIFY
505/* hash table entry per inotify-id */ 1523/* hash table entry per inotify-id */
506typedef struct 1524typedef struct
… …
509} ANFS; 1527} ANFS;
510#endif 1528#endif
511 1529
512/* Heap Entry */ 1530/* Heap Entry */
513#if EV_HEAP_CACHE_AT 1531#if EV_HEAP_CACHE_AT
1532 /* a heap element */
514 typedef struct { 1533 typedef struct {
515 ev_tstamp at; 1534 ev_tstamp at;
516 WT w; 1535 WT w;
517 } ANHE; 1536 } ANHE;
518 1537
519 #define ANHE_w(he) (he).w /* access watcher, read-write */ 1538 #define ANHE_w(he) (he).w /* access watcher, read-write */
520 #define ANHE_at(he) (he).at /* access cached at, read-only */ 1539 #define ANHE_at(he) (he).at /* access cached at, read-only */
521 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ 1540 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
522#else 1541#else
1542 /* a heap element */
523 typedef WT ANHE; 1543 typedef WT ANHE;
524 1544
525 #define ANHE_w(he) (he) 1545 #define ANHE_w(he) (he)
526 #define ANHE_at(he) (he)->at 1546 #define ANHE_at(he) (he)->at
527 #define ANHE_at_cache(he) 1547 #define ANHE_at_cache(he)
… …
538 #undef VAR 1558 #undef VAR
539 }; 1559 };
540 #include "ev_wrap.h" 1560 #include "ev_wrap.h"
541 1561
542 static struct ev_loop default_loop_struct; 1562 static struct ev_loop default_loop_struct;
543 struct ev_loop *ev_default_loop_ptr; 1563 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
544 1564
545#else 1565#else
546 1566
547 ev_tstamp ev_rt_now; 1567 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
548 #define VAR(name,decl) static decl; 1568 #define VAR(name,decl) static decl;
549 #include "ev_vars.h" 1569 #include "ev_vars.h"
550 #undef VAR 1570 #undef VAR
551 1571
552 static int ev_default_loop_ptr; 1572 static int ev_default_loop_ptr;
553 1573
554#endif 1574#endif
555 1575
1576#if EV_FEATURE_API
1577# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
1578# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
1579# define EV_INVOKE_PENDING invoke_cb (EV_A)
1580#else
1581# define EV_RELEASE_CB (void)0
1582# define EV_ACQUIRE_CB (void)0
1583# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
1584#endif
1585
1586#define EVBREAK_RECURSE 0x80
1587
556/*****************************************************************************/ 1588/*****************************************************************************/
557 1589
1590#ifndef EV_HAVE_EV_TIME
558ev_tstamp 1591ev_tstamp
559ev_time (void) 1592ev_time (void) EV_THROW
560{ 1593{
561#if EV_USE_REALTIME 1594#if EV_USE_REALTIME
562 if (expect_true (have_realtime)) 1595 if (expect_true (have_realtime))
563 { 1596 {
564 struct timespec ts; 1597 struct timespec ts;
… …
569 1602
570 struct timeval tv; 1603 struct timeval tv;
571 gettimeofday (&tv, 0); 1604 gettimeofday (&tv, 0);
572 return tv.tv_sec + tv.tv_usec * 1e-6; 1605 return tv.tv_sec + tv.tv_usec * 1e-6;
573} 1606}
1607#endif
574 1608
575inline_size ev_tstamp 1609inline_size ev_tstamp
576get_clock (void) 1610get_clock (void)
577{ 1611{
578#if EV_USE_MONOTONIC 1612#if EV_USE_MONOTONIC
… …
587 return ev_time (); 1621 return ev_time ();
588} 1622}
589 1623
590#if EV_MULTIPLICITY 1624#if EV_MULTIPLICITY
591ev_tstamp 1625ev_tstamp
592ev_now (EV_P) 1626ev_now (EV_P) EV_THROW
593{ 1627{
594 return ev_rt_now; 1628 return ev_rt_now;
595} 1629}
596#endif 1630#endif
597 1631
598void 1632void
599ev_sleep (ev_tstamp delay) 1633ev_sleep (ev_tstamp delay) EV_THROW
600{ 1634{
601 if (delay > 0.) 1635 if (delay > 0.)
602 { 1636 {
603#if EV_USE_NANOSLEEP 1637#if EV_USE_NANOSLEEP
604 struct timespec ts; 1638 struct timespec ts;
605 1639
606 ts.tv_sec = (time_t)delay; 1640 EV_TS_SET (ts, delay);
607 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
608
609 nanosleep (&ts, 0); 1641 nanosleep (&ts, 0);
610#elif defined(_WIN32) 1642#elif defined _WIN32
611 Sleep ((unsigned long)(delay * 1e3)); 1643 Sleep ((unsigned long)(delay * 1e3));
612#else 1644#else
613 struct timeval tv; 1645 struct timeval tv;
614 1646
615 tv.tv_sec = (time_t)delay;
616 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
617
618 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1647 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
619 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 1648 /* something not guaranteed by newer posix versions, but guaranteed */
620 /* by older ones */ 1649 /* by older ones */
1650 EV_TV_SET (tv, delay);
621 select (0, 0, 0, 0, &tv); 1651 select (0, 0, 0, 0, &tv);
622#endif 1652#endif
623 } 1653 }
624} 1654}
625 1655
626/*****************************************************************************/ 1656/*****************************************************************************/
627 1657
628#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1658#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
629 1659
1660/* find a suitable new size for the given array, */
1661/* hopefully by rounding to a nice-to-malloc size */
630inline_size int 1662inline_size int
631array_nextsize (int elem, int cur, int cnt) 1663array_nextsize (int elem, int cur, int cnt)
632{ 1664{
633 int ncur = cur + 1; 1665 int ncur = cur + 1;
634 1666
635 do 1667 do
636 ncur <<= 1; 1668 ncur <<= 1;
637 while (cnt > ncur); 1669 while (cnt > ncur);
638 1670
639 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1671 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
640 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1672 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
641 { 1673 {
642 ncur *= elem; 1674 ncur *= elem;
643 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1675 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
644 ncur = ncur - sizeof (void *) * 4; 1676 ncur = ncur - sizeof (void *) * 4;
… …
646 } 1678 }
647 1679
648 return ncur; 1680 return ncur;
649} 1681}
650 1682
651static noinline void * 1683static void * noinline ecb_cold
652array_realloc (int elem, void *base, int *cur, int cnt) 1684array_realloc (int elem, void *base, int *cur, int cnt)
653{ 1685{
654 *cur = array_nextsize (elem, *cur, cnt); 1686 *cur = array_nextsize (elem, *cur, cnt);
655 return ev_realloc (base, elem * *cur); 1687 return ev_realloc (base, elem * *cur);
656} 1688}
… …
659 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1691 memset ((void *)(base), 0, sizeof (*(base)) * (count))
660 1692
661#define array_needsize(type,base,cur,cnt,init) \ 1693#define array_needsize(type,base,cur,cnt,init) \
662 if (expect_false ((cnt) > (cur))) \ 1694 if (expect_false ((cnt) > (cur))) \
663 { \ 1695 { \
664 int ocur_ = (cur); \ 1696 int ecb_unused ocur_ = (cur); \
665 (base) = (type *)array_realloc \ 1697 (base) = (type *)array_realloc \
666 (sizeof (type), (base), &(cur), (cnt)); \ 1698 (sizeof (type), (base), &(cur), (cnt)); \
667 init ((base) + (ocur_), (cur) - ocur_); \ 1699 init ((base) + (ocur_), (cur) - ocur_); \
668 } 1700 }
669 1701
… …
680#define array_free(stem, idx) \ 1712#define array_free(stem, idx) \
681 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1713 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
682 1714
683/*****************************************************************************/ 1715/*****************************************************************************/
684 1716
1717/* dummy callback for pending events */
1718static void noinline
1719pendingcb (EV_P_ ev_prepare *w, int revents)
1720{
1721}
1722
685void noinline 1723void noinline
686ev_feed_event (EV_P_ void *w, int revents) 1724ev_feed_event (EV_P_ void *w, int revents) EV_THROW
687{ 1725{
688 W w_ = (W)w; 1726 W w_ = (W)w;
689 int pri = ABSPRI (w_); 1727 int pri = ABSPRI (w_);
690 1728
691 if (expect_false (w_->pending)) 1729 if (expect_false (w_->pending))
… …
695 w_->pending = ++pendingcnt [pri]; 1733 w_->pending = ++pendingcnt [pri];
696 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1734 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
697 pendings [pri][w_->pending - 1].w = w_; 1735 pendings [pri][w_->pending - 1].w = w_;
698 pendings [pri][w_->pending - 1].events = revents; 1736 pendings [pri][w_->pending - 1].events = revents;
699 } 1737 }
1738
1739 pendingpri = NUMPRI - 1;
700} 1740}
701 1741
702inline_speed void 1742inline_speed void
703feed_reverse (EV_P_ W w) 1743feed_reverse (EV_P_ W w)
704{ 1744{
… …
724} 1764}
725 1765
726/*****************************************************************************/ 1766/*****************************************************************************/
727 1767
728inline_speed void 1768inline_speed void
729fd_event (EV_P_ int fd, int revents) 1769fd_event_nocheck (EV_P_ int fd, int revents)
730{ 1770{
731 ANFD *anfd = anfds + fd; 1771 ANFD *anfd = anfds + fd;
732 ev_io *w; 1772 ev_io *w;
733 1773
734 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1774 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
738 if (ev) 1778 if (ev)
739 ev_feed_event (EV_A_ (W)w, ev); 1779 ev_feed_event (EV_A_ (W)w, ev);
740 } 1780 }
741} 1781}
742 1782
1783/* do not submit kernel events for fds that have reify set */
1784/* because that means they changed while we were polling for new events */
1785inline_speed void
1786fd_event (EV_P_ int fd, int revents)
1787{
1788 ANFD *anfd = anfds + fd;
1789
1790 if (expect_true (!anfd->reify))
1791 fd_event_nocheck (EV_A_ fd, revents);
1792}
1793
743void 1794void
744ev_feed_fd_event (EV_P_ int fd, int revents) 1795ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
745{ 1796{
746 if (fd >= 0 && fd < anfdmax) 1797 if (fd >= 0 && fd < anfdmax)
747 fd_event (EV_A_ fd, revents); 1798 fd_event_nocheck (EV_A_ fd, revents);
748} 1799}
749 1800
1801/* make sure the external fd watch events are in-sync */
1802/* with the kernel/libev internal state */
750inline_size void 1803inline_size void
751fd_reify (EV_P) 1804fd_reify (EV_P)
752{ 1805{
753 int i; 1806 int i;
1807
1808#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1809 for (i = 0; i < fdchangecnt; ++i)
1810 {
1811 int fd = fdchanges [i];
1812 ANFD *anfd = anfds + fd;
1813
1814 if (anfd->reify & EV__IOFDSET && anfd->head)
1815 {
1816 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1817
1818 if (handle != anfd->handle)
1819 {
1820 unsigned long arg;
1821
1822 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1823
1824 /* handle changed, but fd didn't - we need to do it in two steps */
1825 backend_modify (EV_A_ fd, anfd->events, 0);
1826 anfd->events = 0;
1827 anfd->handle = handle;
1828 }
1829 }
1830 }
1831#endif
754 1832
755 for (i = 0; i < fdchangecnt; ++i) 1833 for (i = 0; i < fdchangecnt; ++i)
756 { 1834 {
757 int fd = fdchanges [i]; 1835 int fd = fdchanges [i];
758 ANFD *anfd = anfds + fd; 1836 ANFD *anfd = anfds + fd;
759 ev_io *w; 1837 ev_io *w;
760 1838
761 unsigned char events = 0; 1839 unsigned char o_events = anfd->events;
1840 unsigned char o_reify = anfd->reify;
762 1841
763 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1842 anfd->reify = 0;
764 events |= (unsigned char)w->events;
765 1843
766#if EV_SELECT_IS_WINSOCKET 1844 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
767 if (events)
768 { 1845 {
769 unsigned long arg; 1846 anfd->events = 0;
770 #ifdef EV_FD_TO_WIN32_HANDLE 1847
771 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1848 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
772 #else 1849 anfd->events |= (unsigned char)w->events;
773 anfd->handle = _get_osfhandle (fd); 1850
774 #endif 1851 if (o_events != anfd->events)
775 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1852 o_reify = EV__IOFDSET; /* actually |= */
776 } 1853 }
777#endif
778 1854
779 { 1855 if (o_reify & EV__IOFDSET)
780 unsigned char o_events = anfd->events;
781 unsigned char o_reify = anfd->reify;
782
783 anfd->reify = 0;
784 anfd->events = events;
785
786 if (o_events != events || o_reify & EV__IOFDSET)
787 backend_modify (EV_A_ fd, o_events, events); 1856 backend_modify (EV_A_ fd, o_events, anfd->events);
788 }
789 } 1857 }
790 1858
791 fdchangecnt = 0; 1859 fdchangecnt = 0;
792} 1860}
793 1861
1862/* something about the given fd changed */
794inline_size void 1863inline_size void
795fd_change (EV_P_ int fd, int flags) 1864fd_change (EV_P_ int fd, int flags)
796{ 1865{
797 unsigned char reify = anfds [fd].reify; 1866 unsigned char reify = anfds [fd].reify;
798 anfds [fd].reify |= flags; 1867 anfds [fd].reify |= flags;
… …
803 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 1872 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
804 fdchanges [fdchangecnt - 1] = fd; 1873 fdchanges [fdchangecnt - 1] = fd;
805 } 1874 }
806} 1875}
807 1876
1877/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
808inline_speed void 1878inline_speed void ecb_cold
809fd_kill (EV_P_ int fd) 1879fd_kill (EV_P_ int fd)
810{ 1880{
811 ev_io *w; 1881 ev_io *w;
812 1882
813 while ((w = (ev_io *)anfds [fd].head)) 1883 while ((w = (ev_io *)anfds [fd].head))
… …
815 ev_io_stop (EV_A_ w); 1885 ev_io_stop (EV_A_ w);
816 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1886 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
817 } 1887 }
818} 1888}
819 1889
1890/* check whether the given fd is actually valid, for error recovery */
820inline_size int 1891inline_size int ecb_cold
821fd_valid (int fd) 1892fd_valid (int fd)
822{ 1893{
823#ifdef _WIN32 1894#ifdef _WIN32
824 return _get_osfhandle (fd) != -1; 1895 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
825#else 1896#else
826 return fcntl (fd, F_GETFD) != -1; 1897 return fcntl (fd, F_GETFD) != -1;
827#endif 1898#endif
828} 1899}
829 1900
830/* called on EBADF to verify fds */ 1901/* called on EBADF to verify fds */
831static void noinline 1902static void noinline ecb_cold
832fd_ebadf (EV_P) 1903fd_ebadf (EV_P)
833{ 1904{
834 int fd; 1905 int fd;
835 1906
836 for (fd = 0; fd < anfdmax; ++fd) 1907 for (fd = 0; fd < anfdmax; ++fd)
… …
838 if (!fd_valid (fd) && errno == EBADF) 1909 if (!fd_valid (fd) && errno == EBADF)
839 fd_kill (EV_A_ fd); 1910 fd_kill (EV_A_ fd);
840} 1911}
841 1912
842/* called on ENOMEM in select/poll to kill some fds and retry */ 1913/* called on ENOMEM in select/poll to kill some fds and retry */
843static void noinline 1914static void noinline ecb_cold
844fd_enomem (EV_P) 1915fd_enomem (EV_P)
845{ 1916{
846 int fd; 1917 int fd;
847 1918
848 for (fd = anfdmax; fd--; ) 1919 for (fd = anfdmax; fd--; )
849 if (anfds [fd].events) 1920 if (anfds [fd].events)
850 { 1921 {
851 fd_kill (EV_A_ fd); 1922 fd_kill (EV_A_ fd);
852 return; 1923 break;
853 } 1924 }
854} 1925}
855 1926
856/* usually called after fork if backend needs to re-arm all fds from scratch */ 1927/* usually called after fork if backend needs to re-arm all fds from scratch */
857static void noinline 1928static void noinline
… …
862 for (fd = 0; fd < anfdmax; ++fd) 1933 for (fd = 0; fd < anfdmax; ++fd)
863 if (anfds [fd].events) 1934 if (anfds [fd].events)
864 { 1935 {
865 anfds [fd].events = 0; 1936 anfds [fd].events = 0;
866 anfds [fd].emask = 0; 1937 anfds [fd].emask = 0;
867 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1938 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
868 } 1939 }
869} 1940}
870 1941
1942/* used to prepare libev internal fd's */
1943/* this is not fork-safe */
1944inline_speed void
1945fd_intern (int fd)
1946{
1947#ifdef _WIN32
1948 unsigned long arg = 1;
1949 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1950#else
1951 fcntl (fd, F_SETFD, FD_CLOEXEC);
1952 fcntl (fd, F_SETFL, O_NONBLOCK);
1953#endif
1954}
1955
871/*****************************************************************************/ 1956/*****************************************************************************/
872 1957
873/* 1958/*
874 * the heap functions want a real array index. array index 0 uis guaranteed to not 1959 * the heap functions want a real array index. array index 0 is guaranteed to not
875 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1960 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
876 * the branching factor of the d-tree. 1961 * the branching factor of the d-tree.
877 */ 1962 */
878 1963
879/* 1964/*
… …
947 2032
948 for (;;) 2033 for (;;)
949 { 2034 {
950 int c = k << 1; 2035 int c = k << 1;
951 2036
952 if (c > N + HEAP0 - 1) 2037 if (c >= N + HEAP0)
953 break; 2038 break;
954 2039
955 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 2040 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
956 ? 1 : 0; 2041 ? 1 : 0;
957 2042
… …
989 2074
990 heap [k] = he; 2075 heap [k] = he;
991 ev_active (ANHE_w (he)) = k; 2076 ev_active (ANHE_w (he)) = k;
992} 2077}
993 2078
2079/* move an element suitably so it is in a correct place */
994inline_size void 2080inline_size void
995adjustheap (ANHE *heap, int N, int k) 2081adjustheap (ANHE *heap, int N, int k)
996{ 2082{
997 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 2083 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
998 upheap (heap, k); 2084 upheap (heap, k);
999 else 2085 else
1000 downheap (heap, N, k); 2086 downheap (heap, N, k);
1001} 2087}
1002 2088
… …
1012 upheap (heap, i + HEAP0); 2098 upheap (heap, i + HEAP0);
1013} 2099}
1014 2100
1015/*****************************************************************************/ 2101/*****************************************************************************/
1016 2102
2103/* associate signal watchers to a signal signal */
1017typedef struct 2104typedef struct
1018{ 2105{
2106 EV_ATOMIC_T pending;
2107#if EV_MULTIPLICITY
2108 EV_P;
2109#endif
1019 WL head; 2110 WL head;
1020 EV_ATOMIC_T gotsig;
1021} ANSIG; 2111} ANSIG;
1022 2112
1023static ANSIG *signals; 2113static ANSIG signals [EV_NSIG - 1];
1024static int signalmax;
1025
1026static EV_ATOMIC_T gotsig;
1027 2114
1028/*****************************************************************************/ 2115/*****************************************************************************/
1029 2116
2117#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2118
2119static void noinline ecb_cold
2120evpipe_init (EV_P)
2121{
2122 if (!ev_is_active (&pipe_w))
2123 {
2124 int fds [2];
2125
2126# if EV_USE_EVENTFD
2127 fds [0] = -1;
2128 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
2129 if (fds [1] < 0 && errno == EINVAL)
2130 fds [1] = eventfd (0, 0);
2131
2132 if (fds [1] < 0)
2133# endif
2134 {
2135 while (pipe (fds))
2136 ev_syserr ("(libev) error creating signal/async pipe");
2137
2138 fd_intern (fds [0]);
2139 }
2140
2141 evpipe [0] = fds [0];
2142
2143 if (evpipe [1] < 0)
2144 evpipe [1] = fds [1]; /* first call, set write fd */
2145 else
2146 {
2147 /* on subsequent calls, do not change evpipe [1] */
2148 /* so that evpipe_write can always rely on its value. */
2149 /* this branch does not do anything sensible on windows, */
2150 /* so must not be executed on windows */
2151
2152 dup2 (fds [1], evpipe [1]);
2153 close (fds [1]);
2154 }
2155
2156 fd_intern (evpipe [1]);
2157
2158 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2159 ev_io_start (EV_A_ &pipe_w);
2160 ev_unref (EV_A); /* watcher should not keep loop alive */
2161 }
2162}
2163
1030inline_speed void 2164inline_speed void
1031fd_intern (int fd) 2165evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1032{ 2166{
1033#ifdef _WIN32 2167 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1034 unsigned long arg = 1;
1035 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1036#else
1037 fcntl (fd, F_SETFD, FD_CLOEXEC);
1038 fcntl (fd, F_SETFL, O_NONBLOCK);
1039#endif
1040}
1041 2168
1042static void noinline 2169 if (expect_true (*flag))
1043evpipe_init (EV_P) 2170 return;
1044{ 2171
1045 if (!ev_is_active (&pipeev)) 2172 *flag = 1;
2173 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2174
2175 pipe_write_skipped = 1;
2176
2177 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2178
2179 if (pipe_write_wanted)
1046 { 2180 {
2181 int old_errno;
2182
2183 pipe_write_skipped = 0;
2184 ECB_MEMORY_FENCE_RELEASE;
2185
2186 old_errno = errno; /* save errno because write will clobber it */
2187
1047#if EV_USE_EVENTFD 2188#if EV_USE_EVENTFD
1048 if ((evfd = eventfd (0, 0)) >= 0) 2189 if (evpipe [0] < 0)
1049 { 2190 {
1050 evpipe [0] = -1; 2191 uint64_t counter = 1;
1051 fd_intern (evfd); 2192 write (evpipe [1], &counter, sizeof (uint64_t));
1052 ev_io_set (&pipeev, evfd, EV_READ);
1053 } 2193 }
1054 else 2194 else
1055#endif 2195#endif
1056 { 2196 {
1057 while (pipe (evpipe)) 2197#ifdef _WIN32
1058 ev_syserr ("(libev) error creating signal/async pipe"); 2198 WSABUF buf;
1059 2199 DWORD sent;
1060 fd_intern (evpipe [0]); 2200 buf.buf = &buf;
1061 fd_intern (evpipe [1]); 2201 buf.len = 1;
1062 ev_io_set (&pipeev, evpipe [0], EV_READ); 2202 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2203#else
2204 write (evpipe [1], &(evpipe [1]), 1);
2205#endif
1063 } 2206 }
1064 2207
1065 ev_io_start (EV_A_ &pipeev); 2208 errno = old_errno;
1066 ev_unref (EV_A); /* watcher should not keep loop alive */
1067 }
1068}
1069
1070inline_size void
1071evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1072{
1073 if (!*flag)
1074 { 2209 }
1075 int old_errno = errno; /* save errno because write might clobber it */ 2210}
1076 2211
1077 *flag = 1; 2212/* called whenever the libev signal pipe */
2213/* got some events (signal, async) */
2214static void
2215pipecb (EV_P_ ev_io *iow, int revents)
2216{
2217 int i;
1078 2218
2219 if (revents & EV_READ)
2220 {
1079#if EV_USE_EVENTFD 2221#if EV_USE_EVENTFD
1080 if (evfd >= 0) 2222 if (evpipe [0] < 0)
1081 { 2223 {
1082 uint64_t counter = 1; 2224 uint64_t counter;
1083 write (evfd, &counter, sizeof (uint64_t)); 2225 read (evpipe [1], &counter, sizeof (uint64_t));
1084 } 2226 }
1085 else 2227 else
1086#endif 2228#endif
1087 write (evpipe [1], &old_errno, 1); 2229 {
1088
1089 errno = old_errno;
1090 }
1091}
1092
1093static void
1094pipecb (EV_P_ ev_io *iow, int revents)
1095{
1096#if EV_USE_EVENTFD
1097 if (evfd >= 0)
1098 {
1099 uint64_t counter;
1100 read (evfd, &counter, sizeof (uint64_t));
1101 }
1102 else
1103#endif
1104 {
1105 char dummy; 2230 char dummy[4];
2231#ifdef _WIN32
2232 WSABUF buf;
2233 DWORD recvd;
2234 DWORD flags = 0;
2235 buf.buf = dummy;
2236 buf.len = sizeof (dummy);
2237 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2238#else
1106 read (evpipe [0], &dummy, 1); 2239 read (evpipe [0], &dummy, sizeof (dummy));
2240#endif
2241 }
2242 }
2243
2244 pipe_write_skipped = 0;
2245
2246 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2247
2248#if EV_SIGNAL_ENABLE
2249 if (sig_pending)
1107 } 2250 {
2251 sig_pending = 0;
1108 2252
1109 if (gotsig && ev_is_default_loop (EV_A)) 2253 ECB_MEMORY_FENCE;
1110 {
1111 int signum;
1112 gotsig = 0;
1113 2254
1114 for (signum = signalmax; signum--; ) 2255 for (i = EV_NSIG - 1; i--; )
1115 if (signals [signum].gotsig) 2256 if (expect_false (signals [i].pending))
1116 ev_feed_signal_event (EV_A_ signum + 1); 2257 ev_feed_signal_event (EV_A_ i + 1);
1117 } 2258 }
2259#endif
1118 2260
1119#if EV_ASYNC_ENABLE 2261#if EV_ASYNC_ENABLE
1120 if (gotasync) 2262 if (async_pending)
1121 { 2263 {
1122 int i; 2264 async_pending = 0;
1123 gotasync = 0; 2265
2266 ECB_MEMORY_FENCE;
1124 2267
1125 for (i = asynccnt; i--; ) 2268 for (i = asynccnt; i--; )
1126 if (asyncs [i]->sent) 2269 if (asyncs [i]->sent)
1127 { 2270 {
1128 asyncs [i]->sent = 0; 2271 asyncs [i]->sent = 0;
2272 ECB_MEMORY_FENCE_RELEASE;
1129 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2273 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1130 } 2274 }
1131 } 2275 }
1132#endif 2276#endif
1133} 2277}
1134 2278
1135/*****************************************************************************/ 2279/*****************************************************************************/
1136 2280
2281void
2282ev_feed_signal (int signum) EV_THROW
2283{
2284#if EV_MULTIPLICITY
2285 EV_P;
2286 ECB_MEMORY_FENCE_ACQUIRE;
2287 EV_A = signals [signum - 1].loop;
2288
2289 if (!EV_A)
2290 return;
2291#endif
2292
2293 signals [signum - 1].pending = 1;
2294 evpipe_write (EV_A_ &sig_pending);
2295}
2296
1137static void 2297static void
1138ev_sighandler (int signum) 2298ev_sighandler (int signum)
1139{ 2299{
2300#ifdef _WIN32
2301 signal (signum, ev_sighandler);
2302#endif
2303
2304 ev_feed_signal (signum);
2305}
2306
2307void noinline
2308ev_feed_signal_event (EV_P_ int signum) EV_THROW
2309{
2310 WL w;
2311
2312 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2313 return;
2314
2315 --signum;
2316
1140#if EV_MULTIPLICITY 2317#if EV_MULTIPLICITY
1141 struct ev_loop *loop = &default_loop_struct; 2318 /* it is permissible to try to feed a signal to the wrong loop */
1142#endif 2319 /* or, likely more useful, feeding a signal nobody is waiting for */
1143 2320
1144#if _WIN32 2321 if (expect_false (signals [signum].loop != EV_A))
1145 signal (signum, ev_sighandler);
1146#endif
1147
1148 signals [signum - 1].gotsig = 1;
1149 evpipe_write (EV_A_ &gotsig);
1150}
1151
1152void noinline
1153ev_feed_signal_event (EV_P_ int signum)
1154{
1155 WL w;
1156
1157#if EV_MULTIPLICITY
1158 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1159#endif
1160
1161 --signum;
1162
1163 if (signum < 0 || signum >= signalmax)
1164 return; 2322 return;
2323#endif
1165 2324
1166 signals [signum].gotsig = 0; 2325 signals [signum].pending = 0;
2326 ECB_MEMORY_FENCE_RELEASE;
1167 2327
1168 for (w = signals [signum].head; w; w = w->next) 2328 for (w = signals [signum].head; w; w = w->next)
1169 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2329 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1170} 2330}
1171 2331
2332#if EV_USE_SIGNALFD
2333static void
2334sigfdcb (EV_P_ ev_io *iow, int revents)
2335{
2336 struct signalfd_siginfo si[2], *sip; /* these structs are big */
2337
2338 for (;;)
2339 {
2340 ssize_t res = read (sigfd, si, sizeof (si));
2341
2342 /* not ISO-C, as res might be -1, but works with SuS */
2343 for (sip = si; (char *)sip < (char *)si + res; ++sip)
2344 ev_feed_signal_event (EV_A_ sip->ssi_signo);
2345
2346 if (res < (ssize_t)sizeof (si))
2347 break;
2348 }
2349}
2350#endif
2351
2352#endif
2353
1172/*****************************************************************************/ 2354/*****************************************************************************/
1173 2355
2356#if EV_CHILD_ENABLE
1174static WL childs [EV_PID_HASHSIZE]; 2357static WL childs [EV_PID_HASHSIZE];
1175
1176#ifndef _WIN32
1177 2358
1178static ev_signal childev; 2359static ev_signal childev;
1179 2360
1180#ifndef WIFCONTINUED 2361#ifndef WIFCONTINUED
1181# define WIFCONTINUED(status) 0 2362# define WIFCONTINUED(status) 0
1182#endif 2363#endif
1183 2364
2365/* handle a single child status event */
1184inline_speed void 2366inline_speed void
1185child_reap (EV_P_ int chain, int pid, int status) 2367child_reap (EV_P_ int chain, int pid, int status)
1186{ 2368{
1187 ev_child *w; 2369 ev_child *w;
1188 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2370 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1189 2371
1190 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2372 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1191 { 2373 {
1192 if ((w->pid == pid || !w->pid) 2374 if ((w->pid == pid || !w->pid)
1193 && (!traced || (w->flags & 1))) 2375 && (!traced || (w->flags & 1)))
1194 { 2376 {
1195 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2377 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1202 2384
1203#ifndef WCONTINUED 2385#ifndef WCONTINUED
1204# define WCONTINUED 0 2386# define WCONTINUED 0
1205#endif 2387#endif
1206 2388
2389/* called on sigchld etc., calls waitpid */
1207static void 2390static void
1208childcb (EV_P_ ev_signal *sw, int revents) 2391childcb (EV_P_ ev_signal *sw, int revents)
1209{ 2392{
1210 int pid, status; 2393 int pid, status;
1211 2394
… …
1219 /* make sure we are called again until all children have been reaped */ 2402 /* make sure we are called again until all children have been reaped */
1220 /* we need to do it this way so that the callback gets called before we continue */ 2403 /* we need to do it this way so that the callback gets called before we continue */
1221 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2404 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1222 2405
1223 child_reap (EV_A_ pid, pid, status); 2406 child_reap (EV_A_ pid, pid, status);
1224 if (EV_PID_HASHSIZE > 1) 2407 if ((EV_PID_HASHSIZE) > 1)
1225 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2408 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1226} 2409}
1227 2410
1228#endif 2411#endif
1229 2412
1230/*****************************************************************************/ 2413/*****************************************************************************/
1231 2414
2415#if EV_USE_IOCP
2416# include "ev_iocp.c"
2417#endif
1232#if EV_USE_PORT 2418#if EV_USE_PORT
1233# include "ev_port.c" 2419# include "ev_port.c"
1234#endif 2420#endif
1235#if EV_USE_KQUEUE 2421#if EV_USE_KQUEUE
1236# include "ev_kqueue.c" 2422# include "ev_kqueue.c"
… …
1243#endif 2429#endif
1244#if EV_USE_SELECT 2430#if EV_USE_SELECT
1245# include "ev_select.c" 2431# include "ev_select.c"
1246#endif 2432#endif
1247 2433
1248int 2434int ecb_cold
1249ev_version_major (void) 2435ev_version_major (void) EV_THROW
1250{ 2436{
1251 return EV_VERSION_MAJOR; 2437 return EV_VERSION_MAJOR;
1252} 2438}
1253 2439
1254int 2440int ecb_cold
1255ev_version_minor (void) 2441ev_version_minor (void) EV_THROW
1256{ 2442{
1257 return EV_VERSION_MINOR; 2443 return EV_VERSION_MINOR;
1258} 2444}
1259 2445
1260/* return true if we are running with elevated privileges and should ignore env variables */ 2446/* return true if we are running with elevated privileges and should ignore env variables */
1261int inline_size 2447int inline_size ecb_cold
1262enable_secure (void) 2448enable_secure (void)
1263{ 2449{
1264#ifdef _WIN32 2450#ifdef _WIN32
1265 return 0; 2451 return 0;
1266#else 2452#else
1267 return getuid () != geteuid () 2453 return getuid () != geteuid ()
1268 || getgid () != getegid (); 2454 || getgid () != getegid ();
1269#endif 2455#endif
1270} 2456}
1271 2457
1272unsigned int 2458unsigned int ecb_cold
1273ev_supported_backends (void) 2459ev_supported_backends (void) EV_THROW
1274{ 2460{
1275 unsigned int flags = 0; 2461 unsigned int flags = 0;
1276 2462
1277 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2463 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1278 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2464 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1281 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2467 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1282 2468
1283 return flags; 2469 return flags;
1284} 2470}
1285 2471
1286unsigned int 2472unsigned int ecb_cold
1287ev_recommended_backends (void) 2473ev_recommended_backends (void) EV_THROW
1288{ 2474{
1289 unsigned int flags = ev_supported_backends (); 2475 unsigned int flags = ev_supported_backends ();
1290 2476
1291#ifndef __NetBSD__ 2477#ifndef __NetBSD__
1292 /* kqueue is borked on everything but netbsd apparently */ 2478 /* kqueue is borked on everything but netbsd apparently */
… …
1296#ifdef __APPLE__ 2482#ifdef __APPLE__
1297 /* only select works correctly on that "unix-certified" platform */ 2483 /* only select works correctly on that "unix-certified" platform */
1298 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2484 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1299 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2485 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1300#endif 2486#endif
2487#ifdef __FreeBSD__
2488 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2489#endif
1301 2490
1302 return flags; 2491 return flags;
1303} 2492}
1304 2493
2494unsigned int ecb_cold
2495ev_embeddable_backends (void) EV_THROW
2496{
2497 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2498
2499 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2500 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2501 flags &= ~EVBACKEND_EPOLL;
2502
2503 return flags;
2504}
2505
1305unsigned int 2506unsigned int
1306ev_embeddable_backends (void) 2507ev_backend (EV_P) EV_THROW
1307{ 2508{
1308 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2509 return backend;
1309
1310 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1311 /* please fix it and tell me how to detect the fix */
1312 flags &= ~EVBACKEND_EPOLL;
1313
1314 return flags;
1315} 2510}
1316 2511
2512#if EV_FEATURE_API
1317unsigned int 2513unsigned int
1318ev_backend (EV_P) 2514ev_iteration (EV_P) EV_THROW
1319{ 2515{
1320 return backend; 2516 return loop_count;
1321} 2517}
1322 2518
1323unsigned int 2519unsigned int
1324ev_loop_count (EV_P) 2520ev_depth (EV_P) EV_THROW
1325{ 2521{
1326 return loop_count; 2522 return loop_depth;
1327} 2523}
1328 2524
1329void 2525void
1330ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2526ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1331{ 2527{
1332 io_blocktime = interval; 2528 io_blocktime = interval;
1333} 2529}
1334 2530
1335void 2531void
1336ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2532ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1337{ 2533{
1338 timeout_blocktime = interval; 2534 timeout_blocktime = interval;
1339} 2535}
1340 2536
2537void
2538ev_set_userdata (EV_P_ void *data) EV_THROW
2539{
2540 userdata = data;
2541}
2542
2543void *
2544ev_userdata (EV_P) EV_THROW
2545{
2546 return userdata;
2547}
2548
2549void
2550ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2551{
2552 invoke_cb = invoke_pending_cb;
2553}
2554
2555void
2556ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
2557{
2558 release_cb = release;
2559 acquire_cb = acquire;
2560}
2561#endif
2562
2563/* initialise a loop structure, must be zero-initialised */
1341static void noinline 2564static void noinline ecb_cold
1342loop_init (EV_P_ unsigned int flags) 2565loop_init (EV_P_ unsigned int flags) EV_THROW
1343{ 2566{
1344 if (!backend) 2567 if (!backend)
1345 { 2568 {
2569 origflags = flags;
2570
1346#if EV_USE_REALTIME 2571#if EV_USE_REALTIME
1347 if (!have_realtime) 2572 if (!have_realtime)
1348 { 2573 {
1349 struct timespec ts; 2574 struct timespec ts;
1350 2575
… …
1361 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2586 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1362 have_monotonic = 1; 2587 have_monotonic = 1;
1363 } 2588 }
1364#endif 2589#endif
1365 2590
1366 ev_rt_now = ev_time ();
1367 mn_now = get_clock ();
1368 now_floor = mn_now;
1369 rtmn_diff = ev_rt_now - mn_now;
1370
1371 io_blocktime = 0.;
1372 timeout_blocktime = 0.;
1373 backend = 0;
1374 backend_fd = -1;
1375 gotasync = 0;
1376#if EV_USE_INOTIFY
1377 fs_fd = -2;
1378#endif
1379
1380 /* pid check not overridable via env */ 2591 /* pid check not overridable via env */
1381#ifndef _WIN32 2592#ifndef _WIN32
1382 if (flags & EVFLAG_FORKCHECK) 2593 if (flags & EVFLAG_FORKCHECK)
1383 curpid = getpid (); 2594 curpid = getpid ();
1384#endif 2595#endif
… …
1386 if (!(flags & EVFLAG_NOENV) 2597 if (!(flags & EVFLAG_NOENV)
1387 && !enable_secure () 2598 && !enable_secure ()
1388 && getenv ("LIBEV_FLAGS")) 2599 && getenv ("LIBEV_FLAGS"))
1389 flags = atoi (getenv ("LIBEV_FLAGS")); 2600 flags = atoi (getenv ("LIBEV_FLAGS"));
1390 2601
1391 if (!(flags & 0x0000ffffU)) 2602 ev_rt_now = ev_time ();
2603 mn_now = get_clock ();
2604 now_floor = mn_now;
2605 rtmn_diff = ev_rt_now - mn_now;
2606#if EV_FEATURE_API
2607 invoke_cb = ev_invoke_pending;
2608#endif
2609
2610 io_blocktime = 0.;
2611 timeout_blocktime = 0.;
2612 backend = 0;
2613 backend_fd = -1;
2614 sig_pending = 0;
2615#if EV_ASYNC_ENABLE
2616 async_pending = 0;
2617#endif
2618 pipe_write_skipped = 0;
2619 pipe_write_wanted = 0;
2620 evpipe [0] = -1;
2621 evpipe [1] = -1;
2622#if EV_USE_INOTIFY
2623 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2624#endif
2625#if EV_USE_SIGNALFD
2626 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2627#endif
2628
2629 if (!(flags & EVBACKEND_MASK))
1392 flags |= ev_recommended_backends (); 2630 flags |= ev_recommended_backends ();
1393 2631
2632#if EV_USE_IOCP
2633 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2634#endif
1394#if EV_USE_PORT 2635#if EV_USE_PORT
1395 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2636 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1396#endif 2637#endif
1397#if EV_USE_KQUEUE 2638#if EV_USE_KQUEUE
1398 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2639 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1405#endif 2646#endif
1406#if EV_USE_SELECT 2647#if EV_USE_SELECT
1407 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2648 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1408#endif 2649#endif
1409 2650
2651 ev_prepare_init (&pending_w, pendingcb);
2652
2653#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1410 ev_init (&pipeev, pipecb); 2654 ev_init (&pipe_w, pipecb);
1411 ev_set_priority (&pipeev, EV_MAXPRI); 2655 ev_set_priority (&pipe_w, EV_MAXPRI);
2656#endif
1412 } 2657 }
1413} 2658}
1414 2659
1415static void noinline 2660/* free up a loop structure */
2661void ecb_cold
1416loop_destroy (EV_P) 2662ev_loop_destroy (EV_P)
1417{ 2663{
1418 int i; 2664 int i;
1419 2665
2666#if EV_MULTIPLICITY
2667 /* mimic free (0) */
2668 if (!EV_A)
2669 return;
2670#endif
2671
2672#if EV_CLEANUP_ENABLE
2673 /* queue cleanup watchers (and execute them) */
2674 if (expect_false (cleanupcnt))
2675 {
2676 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2677 EV_INVOKE_PENDING;
2678 }
2679#endif
2680
2681#if EV_CHILD_ENABLE
2682 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2683 {
2684 ev_ref (EV_A); /* child watcher */
2685 ev_signal_stop (EV_A_ &childev);
2686 }
2687#endif
2688
1420 if (ev_is_active (&pipeev)) 2689 if (ev_is_active (&pipe_w))
1421 { 2690 {
1422 ev_ref (EV_A); /* signal watcher */ 2691 /*ev_ref (EV_A);*/
1423 ev_io_stop (EV_A_ &pipeev); 2692 /*ev_io_stop (EV_A_ &pipe_w);*/
1424 2693
2694 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2695 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2696 }
2697
1425#if EV_USE_EVENTFD 2698#if EV_USE_SIGNALFD
1426 if (evfd >= 0) 2699 if (ev_is_active (&sigfd_w))
1427 close (evfd); 2700 close (sigfd);
1428#endif 2701#endif
1429
1430 if (evpipe [0] >= 0)
1431 {
1432 close (evpipe [0]);
1433 close (evpipe [1]);
1434 }
1435 }
1436 2702
1437#if EV_USE_INOTIFY 2703#if EV_USE_INOTIFY
1438 if (fs_fd >= 0) 2704 if (fs_fd >= 0)
1439 close (fs_fd); 2705 close (fs_fd);
1440#endif 2706#endif
1441 2707
1442 if (backend_fd >= 0) 2708 if (backend_fd >= 0)
1443 close (backend_fd); 2709 close (backend_fd);
1444 2710
2711#if EV_USE_IOCP
2712 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2713#endif
1445#if EV_USE_PORT 2714#if EV_USE_PORT
1446 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2715 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1447#endif 2716#endif
1448#if EV_USE_KQUEUE 2717#if EV_USE_KQUEUE
1449 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2718 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1464#if EV_IDLE_ENABLE 2733#if EV_IDLE_ENABLE
1465 array_free (idle, [i]); 2734 array_free (idle, [i]);
1466#endif 2735#endif
1467 } 2736 }
1468 2737
1469 ev_free (anfds); anfdmax = 0; 2738 ev_free (anfds); anfds = 0; anfdmax = 0;
1470 2739
1471 /* have to use the microsoft-never-gets-it-right macro */ 2740 /* have to use the microsoft-never-gets-it-right macro */
1472 array_free (rfeed, EMPTY); 2741 array_free (rfeed, EMPTY);
1473 array_free (fdchange, EMPTY); 2742 array_free (fdchange, EMPTY);
1474 array_free (timer, EMPTY); 2743 array_free (timer, EMPTY);
… …
1476 array_free (periodic, EMPTY); 2745 array_free (periodic, EMPTY);
1477#endif 2746#endif
1478#if EV_FORK_ENABLE 2747#if EV_FORK_ENABLE
1479 array_free (fork, EMPTY); 2748 array_free (fork, EMPTY);
1480#endif 2749#endif
2750#if EV_CLEANUP_ENABLE
2751 array_free (cleanup, EMPTY);
2752#endif
1481 array_free (prepare, EMPTY); 2753 array_free (prepare, EMPTY);
1482 array_free (check, EMPTY); 2754 array_free (check, EMPTY);
1483#if EV_ASYNC_ENABLE 2755#if EV_ASYNC_ENABLE
1484 array_free (async, EMPTY); 2756 array_free (async, EMPTY);
1485#endif 2757#endif
1486 2758
1487 backend = 0; 2759 backend = 0;
2760
2761#if EV_MULTIPLICITY
2762 if (ev_is_default_loop (EV_A))
2763#endif
2764 ev_default_loop_ptr = 0;
2765#if EV_MULTIPLICITY
2766 else
2767 ev_free (EV_A);
2768#endif
1488} 2769}
1489 2770
1490#if EV_USE_INOTIFY 2771#if EV_USE_INOTIFY
1491inline_size void infy_fork (EV_P); 2772inline_size void infy_fork (EV_P);
1492#endif 2773#endif
… …
1505#endif 2786#endif
1506#if EV_USE_INOTIFY 2787#if EV_USE_INOTIFY
1507 infy_fork (EV_A); 2788 infy_fork (EV_A);
1508#endif 2789#endif
1509 2790
2791#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1510 if (ev_is_active (&pipeev)) 2792 if (ev_is_active (&pipe_w))
1511 { 2793 {
1512 /* this "locks" the handlers against writing to the pipe */ 2794 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1513 /* while we modify the fd vars */
1514 gotsig = 1;
1515#if EV_ASYNC_ENABLE
1516 gotasync = 1;
1517#endif
1518 2795
1519 ev_ref (EV_A); 2796 ev_ref (EV_A);
1520 ev_io_stop (EV_A_ &pipeev); 2797 ev_io_stop (EV_A_ &pipe_w);
1521
1522#if EV_USE_EVENTFD
1523 if (evfd >= 0)
1524 close (evfd);
1525#endif
1526 2798
1527 if (evpipe [0] >= 0) 2799 if (evpipe [0] >= 0)
1528 { 2800 EV_WIN32_CLOSE_FD (evpipe [0]);
1529 close (evpipe [0]);
1530 close (evpipe [1]);
1531 }
1532 2801
1533 evpipe_init (EV_A); 2802 evpipe_init (EV_A);
1534 /* now iterate over everything, in case we missed something */ 2803 /* iterate over everything, in case we missed something before */
1535 pipecb (EV_A_ &pipeev, EV_READ); 2804 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1536 } 2805 }
2806#endif
1537 2807
1538 postfork = 0; 2808 postfork = 0;
1539} 2809}
1540 2810
1541#if EV_MULTIPLICITY 2811#if EV_MULTIPLICITY
1542 2812
1543struct ev_loop * 2813struct ev_loop * ecb_cold
1544ev_loop_new (unsigned int flags) 2814ev_loop_new (unsigned int flags) EV_THROW
1545{ 2815{
1546 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2816 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1547 2817
1548 memset (loop, 0, sizeof (struct ev_loop)); 2818 memset (EV_A, 0, sizeof (struct ev_loop));
1549
1550 loop_init (EV_A_ flags); 2819 loop_init (EV_A_ flags);
1551 2820
1552 if (ev_backend (EV_A)) 2821 if (ev_backend (EV_A))
1553 return loop; 2822 return EV_A;
1554 2823
2824 ev_free (EV_A);
1555 return 0; 2825 return 0;
1556} 2826}
1557 2827
1558void 2828#endif /* multiplicity */
1559ev_loop_destroy (EV_P)
1560{
1561 loop_destroy (EV_A);
1562 ev_free (loop);
1563}
1564
1565void
1566ev_loop_fork (EV_P)
1567{
1568 postfork = 1; /* must be in line with ev_default_fork */
1569}
1570 2829
1571#if EV_VERIFY 2830#if EV_VERIFY
1572static void noinline 2831static void noinline ecb_cold
1573verify_watcher (EV_P_ W w) 2832verify_watcher (EV_P_ W w)
1574{ 2833{
1575 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2834 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1576 2835
1577 if (w->pending) 2836 if (w->pending)
1578 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2837 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1579} 2838}
1580 2839
1581static void noinline 2840static void noinline ecb_cold
1582verify_heap (EV_P_ ANHE *heap, int N) 2841verify_heap (EV_P_ ANHE *heap, int N)
1583{ 2842{
1584 int i; 2843 int i;
1585 2844
1586 for (i = HEAP0; i < N + HEAP0; ++i) 2845 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1591 2850
1592 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2851 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1593 } 2852 }
1594} 2853}
1595 2854
1596static void noinline 2855static void noinline ecb_cold
1597array_verify (EV_P_ W *ws, int cnt) 2856array_verify (EV_P_ W *ws, int cnt)
1598{ 2857{
1599 while (cnt--) 2858 while (cnt--)
1600 { 2859 {
1601 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2860 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1602 verify_watcher (EV_A_ ws [cnt]); 2861 verify_watcher (EV_A_ ws [cnt]);
1603 } 2862 }
1604} 2863}
1605#endif 2864#endif
1606 2865
1607void 2866#if EV_FEATURE_API
1608ev_loop_verify (EV_P) 2867void ecb_cold
2868ev_verify (EV_P) EV_THROW
1609{ 2869{
1610#if EV_VERIFY 2870#if EV_VERIFY
1611 int i; 2871 int i;
1612 WL w; 2872 WL w, w2;
1613 2873
1614 assert (activecnt >= -1); 2874 assert (activecnt >= -1);
1615 2875
1616 assert (fdchangemax >= fdchangecnt); 2876 assert (fdchangemax >= fdchangecnt);
1617 for (i = 0; i < fdchangecnt; ++i) 2877 for (i = 0; i < fdchangecnt; ++i)
1618 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2878 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1619 2879
1620 assert (anfdmax >= 0); 2880 assert (anfdmax >= 0);
1621 for (i = 0; i < anfdmax; ++i) 2881 for (i = 0; i < anfdmax; ++i)
2882 {
2883 int j = 0;
2884
1622 for (w = anfds [i].head; w; w = w->next) 2885 for (w = w2 = anfds [i].head; w; w = w->next)
1623 { 2886 {
1624 verify_watcher (EV_A_ (W)w); 2887 verify_watcher (EV_A_ (W)w);
2888
2889 if (j++ & 1)
2890 {
2891 assert (("libev: io watcher list contains a loop", w != w2));
2892 w2 = w2->next;
2893 }
2894
1625 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2895 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1626 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2896 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1627 } 2897 }
2898 }
1628 2899
1629 assert (timermax >= timercnt); 2900 assert (timermax >= timercnt);
1630 verify_heap (EV_A_ timers, timercnt); 2901 verify_heap (EV_A_ timers, timercnt);
1631 2902
1632#if EV_PERIODIC_ENABLE 2903#if EV_PERIODIC_ENABLE
… …
1647#if EV_FORK_ENABLE 2918#if EV_FORK_ENABLE
1648 assert (forkmax >= forkcnt); 2919 assert (forkmax >= forkcnt);
1649 array_verify (EV_A_ (W *)forks, forkcnt); 2920 array_verify (EV_A_ (W *)forks, forkcnt);
1650#endif 2921#endif
1651 2922
2923#if EV_CLEANUP_ENABLE
2924 assert (cleanupmax >= cleanupcnt);
2925 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2926#endif
2927
1652#if EV_ASYNC_ENABLE 2928#if EV_ASYNC_ENABLE
1653 assert (asyncmax >= asynccnt); 2929 assert (asyncmax >= asynccnt);
1654 array_verify (EV_A_ (W *)asyncs, asynccnt); 2930 array_verify (EV_A_ (W *)asyncs, asynccnt);
1655#endif 2931#endif
1656 2932
2933#if EV_PREPARE_ENABLE
1657 assert (preparemax >= preparecnt); 2934 assert (preparemax >= preparecnt);
1658 array_verify (EV_A_ (W *)prepares, preparecnt); 2935 array_verify (EV_A_ (W *)prepares, preparecnt);
2936#endif
1659 2937
2938#if EV_CHECK_ENABLE
1660 assert (checkmax >= checkcnt); 2939 assert (checkmax >= checkcnt);
1661 array_verify (EV_A_ (W *)checks, checkcnt); 2940 array_verify (EV_A_ (W *)checks, checkcnt);
2941#endif
1662 2942
1663# if 0 2943# if 0
2944#if EV_CHILD_ENABLE
1664 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2945 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1665 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2946 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2947#endif
1666# endif 2948# endif
1667#endif 2949#endif
1668} 2950}
1669 2951#endif
1670#endif /* multiplicity */
1671 2952
1672#if EV_MULTIPLICITY 2953#if EV_MULTIPLICITY
1673struct ev_loop * 2954struct ev_loop * ecb_cold
1674ev_default_loop_init (unsigned int flags)
1675#else 2955#else
1676int 2956int
2957#endif
1677ev_default_loop (unsigned int flags) 2958ev_default_loop (unsigned int flags) EV_THROW
1678#endif
1679{ 2959{
1680 if (!ev_default_loop_ptr) 2960 if (!ev_default_loop_ptr)
1681 { 2961 {
1682#if EV_MULTIPLICITY 2962#if EV_MULTIPLICITY
1683 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2963 EV_P = ev_default_loop_ptr = &default_loop_struct;
1684#else 2964#else
1685 ev_default_loop_ptr = 1; 2965 ev_default_loop_ptr = 1;
1686#endif 2966#endif
1687 2967
1688 loop_init (EV_A_ flags); 2968 loop_init (EV_A_ flags);
1689 2969
1690 if (ev_backend (EV_A)) 2970 if (ev_backend (EV_A))
1691 { 2971 {
1692#ifndef _WIN32 2972#if EV_CHILD_ENABLE
1693 ev_signal_init (&childev, childcb, SIGCHLD); 2973 ev_signal_init (&childev, childcb, SIGCHLD);
1694 ev_set_priority (&childev, EV_MAXPRI); 2974 ev_set_priority (&childev, EV_MAXPRI);
1695 ev_signal_start (EV_A_ &childev); 2975 ev_signal_start (EV_A_ &childev);
1696 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2976 ev_unref (EV_A); /* child watcher should not keep loop alive */
1697#endif 2977#endif
… …
1702 2982
1703 return ev_default_loop_ptr; 2983 return ev_default_loop_ptr;
1704} 2984}
1705 2985
1706void 2986void
1707ev_default_destroy (void) 2987ev_loop_fork (EV_P) EV_THROW
1708{ 2988{
1709#if EV_MULTIPLICITY 2989 postfork = 1;
1710 struct ev_loop *loop = ev_default_loop_ptr;
1711#endif
1712
1713 ev_default_loop_ptr = 0;
1714
1715#ifndef _WIN32
1716 ev_ref (EV_A); /* child watcher */
1717 ev_signal_stop (EV_A_ &childev);
1718#endif
1719
1720 loop_destroy (EV_A);
1721}
1722
1723void
1724ev_default_fork (void)
1725{
1726#if EV_MULTIPLICITY
1727 struct ev_loop *loop = ev_default_loop_ptr;
1728#endif
1729
1730 postfork = 1; /* must be in line with ev_loop_fork */
1731} 2990}
1732 2991
1733/*****************************************************************************/ 2992/*****************************************************************************/
1734 2993
1735void 2994void
1736ev_invoke (EV_P_ void *w, int revents) 2995ev_invoke (EV_P_ void *w, int revents)
1737{ 2996{
1738 EV_CB_INVOKE ((W)w, revents); 2997 EV_CB_INVOKE ((W)w, revents);
1739} 2998}
1740 2999
1741inline_speed void 3000unsigned int
1742call_pending (EV_P) 3001ev_pending_count (EV_P) EV_THROW
1743{ 3002{
1744 int pri; 3003 int pri;
3004 unsigned int count = 0;
1745 3005
1746 for (pri = NUMPRI; pri--; ) 3006 for (pri = NUMPRI; pri--; )
3007 count += pendingcnt [pri];
3008
3009 return count;
3010}
3011
3012void noinline
3013ev_invoke_pending (EV_P)
3014{
3015 pendingpri = NUMPRI;
3016
3017 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3018 {
3019 --pendingpri;
3020
1747 while (pendingcnt [pri]) 3021 while (pendingcnt [pendingpri])
1748 {
1749 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1750
1751 if (expect_true (p->w))
1752 { 3022 {
1753 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ 3023 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1754 3024
1755 p->w->pending = 0; 3025 p->w->pending = 0;
1756 EV_CB_INVOKE (p->w, p->events); 3026 EV_CB_INVOKE (p->w, p->events);
1757 EV_FREQUENT_CHECK; 3027 EV_FREQUENT_CHECK;
1758 } 3028 }
1759 } 3029 }
1760} 3030}
1761 3031
1762#if EV_IDLE_ENABLE 3032#if EV_IDLE_ENABLE
3033/* make idle watchers pending. this handles the "call-idle */
3034/* only when higher priorities are idle" logic */
1763inline_size void 3035inline_size void
1764idle_reify (EV_P) 3036idle_reify (EV_P)
1765{ 3037{
1766 if (expect_false (idleall)) 3038 if (expect_false (idleall))
1767 { 3039 {
… …
1780 } 3052 }
1781 } 3053 }
1782} 3054}
1783#endif 3055#endif
1784 3056
3057/* make timers pending */
1785inline_size void 3058inline_size void
1786timers_reify (EV_P) 3059timers_reify (EV_P)
1787{ 3060{
1788 EV_FREQUENT_CHECK; 3061 EV_FREQUENT_CHECK;
1789 3062
… …
1813 EV_FREQUENT_CHECK; 3086 EV_FREQUENT_CHECK;
1814 feed_reverse (EV_A_ (W)w); 3087 feed_reverse (EV_A_ (W)w);
1815 } 3088 }
1816 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 3089 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1817 3090
1818 feed_reverse_done (EV_A_ EV_TIMEOUT); 3091 feed_reverse_done (EV_A_ EV_TIMER);
1819 } 3092 }
1820} 3093}
1821 3094
1822#if EV_PERIODIC_ENABLE 3095#if EV_PERIODIC_ENABLE
3096
3097static void noinline
3098periodic_recalc (EV_P_ ev_periodic *w)
3099{
3100 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3101 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3102
3103 /* the above almost always errs on the low side */
3104 while (at <= ev_rt_now)
3105 {
3106 ev_tstamp nat = at + w->interval;
3107
3108 /* when resolution fails us, we use ev_rt_now */
3109 if (expect_false (nat == at))
3110 {
3111 at = ev_rt_now;
3112 break;
3113 }
3114
3115 at = nat;
3116 }
3117
3118 ev_at (w) = at;
3119}
3120
3121/* make periodics pending */
1823inline_size void 3122inline_size void
1824periodics_reify (EV_P) 3123periodics_reify (EV_P)
1825{ 3124{
1826 EV_FREQUENT_CHECK; 3125 EV_FREQUENT_CHECK;
1827 3126
1828 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3127 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1829 { 3128 {
1830 int feed_count = 0;
1831
1832 do 3129 do
1833 { 3130 {
1834 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3131 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1835 3132
1836 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3133 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
1845 ANHE_at_cache (periodics [HEAP0]); 3142 ANHE_at_cache (periodics [HEAP0]);
1846 downheap (periodics, periodiccnt, HEAP0); 3143 downheap (periodics, periodiccnt, HEAP0);
1847 } 3144 }
1848 else if (w->interval) 3145 else if (w->interval)
1849 { 3146 {
1850 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3147 periodic_recalc (EV_A_ w);
1851 /* if next trigger time is not sufficiently in the future, put it there */
1852 /* this might happen because of floating point inexactness */
1853 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1854 {
1855 ev_at (w) += w->interval;
1856
1857 /* if interval is unreasonably low we might still have a time in the past */
1858 /* so correct this. this will make the periodic very inexact, but the user */
1859 /* has effectively asked to get triggered more often than possible */
1860 if (ev_at (w) < ev_rt_now)
1861 ev_at (w) = ev_rt_now;
1862 }
1863
1864 ANHE_at_cache (periodics [HEAP0]); 3148 ANHE_at_cache (periodics [HEAP0]);
1865 downheap (periodics, periodiccnt, HEAP0); 3149 downheap (periodics, periodiccnt, HEAP0);
1866 } 3150 }
1867 else 3151 else
1868 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3152 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1874 3158
1875 feed_reverse_done (EV_A_ EV_PERIODIC); 3159 feed_reverse_done (EV_A_ EV_PERIODIC);
1876 } 3160 }
1877} 3161}
1878 3162
3163/* simply recalculate all periodics */
3164/* TODO: maybe ensure that at least one event happens when jumping forward? */
1879static void noinline 3165static void noinline ecb_cold
1880periodics_reschedule (EV_P) 3166periodics_reschedule (EV_P)
1881{ 3167{
1882 int i; 3168 int i;
1883 3169
1884 /* adjust periodics after time jump */ 3170 /* adjust periodics after time jump */
… …
1887 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3173 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1888 3174
1889 if (w->reschedule_cb) 3175 if (w->reschedule_cb)
1890 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3176 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1891 else if (w->interval) 3177 else if (w->interval)
1892 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3178 periodic_recalc (EV_A_ w);
1893 3179
1894 ANHE_at_cache (periodics [i]); 3180 ANHE_at_cache (periodics [i]);
1895 } 3181 }
1896 3182
1897 reheap (periodics, periodiccnt); 3183 reheap (periodics, periodiccnt);
1898} 3184}
1899#endif 3185#endif
1900 3186
3187/* adjust all timers by a given offset */
1901static void noinline 3188static void noinline ecb_cold
1902timers_reschedule (EV_P_ ev_tstamp adjust) 3189timers_reschedule (EV_P_ ev_tstamp adjust)
1903{ 3190{
1904 int i; 3191 int i;
1905 3192
1906 for (i = 0; i < timercnt; ++i) 3193 for (i = 0; i < timercnt; ++i)
… …
1909 ANHE_w (*he)->at += adjust; 3196 ANHE_w (*he)->at += adjust;
1910 ANHE_at_cache (*he); 3197 ANHE_at_cache (*he);
1911 } 3198 }
1912} 3199}
1913 3200
3201/* fetch new monotonic and realtime times from the kernel */
3202/* also detect if there was a timejump, and act accordingly */
1914inline_speed void 3203inline_speed void
1915time_update (EV_P_ ev_tstamp max_block) 3204time_update (EV_P_ ev_tstamp max_block)
1916{ 3205{
1917 int i;
1918
1919#if EV_USE_MONOTONIC 3206#if EV_USE_MONOTONIC
1920 if (expect_true (have_monotonic)) 3207 if (expect_true (have_monotonic))
1921 { 3208 {
3209 int i;
1922 ev_tstamp odiff = rtmn_diff; 3210 ev_tstamp odiff = rtmn_diff;
1923 3211
1924 mn_now = get_clock (); 3212 mn_now = get_clock ();
1925 3213
1926 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3214 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1942 * doesn't hurt either as we only do this on time-jumps or 3230 * doesn't hurt either as we only do this on time-jumps or
1943 * in the unlikely event of having been preempted here. 3231 * in the unlikely event of having been preempted here.
1944 */ 3232 */
1945 for (i = 4; --i; ) 3233 for (i = 4; --i; )
1946 { 3234 {
3235 ev_tstamp diff;
1947 rtmn_diff = ev_rt_now - mn_now; 3236 rtmn_diff = ev_rt_now - mn_now;
1948 3237
3238 diff = odiff - rtmn_diff;
3239
1949 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3240 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
1950 return; /* all is well */ 3241 return; /* all is well */
1951 3242
1952 ev_rt_now = ev_time (); 3243 ev_rt_now = ev_time ();
1953 mn_now = get_clock (); 3244 mn_now = get_clock ();
1954 now_floor = mn_now; 3245 now_floor = mn_now;
… …
1976 3267
1977 mn_now = ev_rt_now; 3268 mn_now = ev_rt_now;
1978 } 3269 }
1979} 3270}
1980 3271
1981static int loop_done; 3272int
1982
1983void
1984ev_loop (EV_P_ int flags) 3273ev_run (EV_P_ int flags)
1985{ 3274{
3275#if EV_FEATURE_API
3276 ++loop_depth;
3277#endif
3278
3279 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
3280
1986 loop_done = EVUNLOOP_CANCEL; 3281 loop_done = EVBREAK_CANCEL;
1987 3282
1988 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 3283 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1989 3284
1990 do 3285 do
1991 { 3286 {
1992#if EV_VERIFY >= 2 3287#if EV_VERIFY >= 2
1993 ev_loop_verify (EV_A); 3288 ev_verify (EV_A);
1994#endif 3289#endif
1995 3290
1996#ifndef _WIN32 3291#ifndef _WIN32
1997 if (expect_false (curpid)) /* penalise the forking check even more */ 3292 if (expect_false (curpid)) /* penalise the forking check even more */
1998 if (expect_false (getpid () != curpid)) 3293 if (expect_false (getpid () != curpid))
… …
2006 /* we might have forked, so queue fork handlers */ 3301 /* we might have forked, so queue fork handlers */
2007 if (expect_false (postfork)) 3302 if (expect_false (postfork))
2008 if (forkcnt) 3303 if (forkcnt)
2009 { 3304 {
2010 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3305 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2011 call_pending (EV_A); 3306 EV_INVOKE_PENDING;
2012 } 3307 }
2013#endif 3308#endif
2014 3309
3310#if EV_PREPARE_ENABLE
2015 /* queue prepare watchers (and execute them) */ 3311 /* queue prepare watchers (and execute them) */
2016 if (expect_false (preparecnt)) 3312 if (expect_false (preparecnt))
2017 { 3313 {
2018 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3314 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2019 call_pending (EV_A); 3315 EV_INVOKE_PENDING;
2020 } 3316 }
3317#endif
3318
3319 if (expect_false (loop_done))
3320 break;
2021 3321
2022 /* we might have forked, so reify kernel state if necessary */ 3322 /* we might have forked, so reify kernel state if necessary */
2023 if (expect_false (postfork)) 3323 if (expect_false (postfork))
2024 loop_fork (EV_A); 3324 loop_fork (EV_A);
2025 3325
… …
2029 /* calculate blocking time */ 3329 /* calculate blocking time */
2030 { 3330 {
2031 ev_tstamp waittime = 0.; 3331 ev_tstamp waittime = 0.;
2032 ev_tstamp sleeptime = 0.; 3332 ev_tstamp sleeptime = 0.;
2033 3333
3334 /* remember old timestamp for io_blocktime calculation */
3335 ev_tstamp prev_mn_now = mn_now;
3336
3337 /* update time to cancel out callback processing overhead */
3338 time_update (EV_A_ 1e100);
3339
3340 /* from now on, we want a pipe-wake-up */
3341 pipe_write_wanted = 1;
3342
3343 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3344
2034 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3345 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2035 { 3346 {
2036 /* update time to cancel out callback processing overhead */ 3347 waittime = MAX_BLOCKTIME;
2037 time_update (EV_A_ 1e100);
2038 3348
2039 if (timercnt) 3349 if (timercnt)
2040 { 3350 {
2041 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3351 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2042 if (waittime > to) waittime = to; 3352 if (waittime > to) waittime = to;
2043 } 3353 }
2044 3354
2045#if EV_PERIODIC_ENABLE 3355#if EV_PERIODIC_ENABLE
2046 if (periodiccnt) 3356 if (periodiccnt)
2047 { 3357 {
2048 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3358 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2049 if (waittime > to) waittime = to; 3359 if (waittime > to) waittime = to;
2050 } 3360 }
2051#endif 3361#endif
2052 3362
3363 /* don't let timeouts decrease the waittime below timeout_blocktime */
2053 if (expect_false (waittime < timeout_blocktime)) 3364 if (expect_false (waittime < timeout_blocktime))
2054 waittime = timeout_blocktime; 3365 waittime = timeout_blocktime;
2055 3366
2056 sleeptime = waittime - backend_fudge; 3367 /* at this point, we NEED to wait, so we have to ensure */
3368 /* to pass a minimum nonzero value to the backend */
3369 if (expect_false (waittime < backend_mintime))
3370 waittime = backend_mintime;
2057 3371
3372 /* extra check because io_blocktime is commonly 0 */
2058 if (expect_true (sleeptime > io_blocktime)) 3373 if (expect_false (io_blocktime))
2059 sleeptime = io_blocktime;
2060
2061 if (sleeptime)
2062 { 3374 {
3375 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3376
3377 if (sleeptime > waittime - backend_mintime)
3378 sleeptime = waittime - backend_mintime;
3379
3380 if (expect_true (sleeptime > 0.))
3381 {
2063 ev_sleep (sleeptime); 3382 ev_sleep (sleeptime);
2064 waittime -= sleeptime; 3383 waittime -= sleeptime;
3384 }
2065 } 3385 }
2066 } 3386 }
2067 3387
3388#if EV_FEATURE_API
2068 ++loop_count; 3389 ++loop_count;
3390#endif
3391 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2069 backend_poll (EV_A_ waittime); 3392 backend_poll (EV_A_ waittime);
3393 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3394
3395 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3396
3397 ECB_MEMORY_FENCE_ACQUIRE;
3398 if (pipe_write_skipped)
3399 {
3400 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3401 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3402 }
3403
2070 3404
2071 /* update ev_rt_now, do magic */ 3405 /* update ev_rt_now, do magic */
2072 time_update (EV_A_ waittime + sleeptime); 3406 time_update (EV_A_ waittime + sleeptime);
2073 } 3407 }
2074 3408
… …
2081#if EV_IDLE_ENABLE 3415#if EV_IDLE_ENABLE
2082 /* queue idle watchers unless other events are pending */ 3416 /* queue idle watchers unless other events are pending */
2083 idle_reify (EV_A); 3417 idle_reify (EV_A);
2084#endif 3418#endif
2085 3419
3420#if EV_CHECK_ENABLE
2086 /* queue check watchers, to be executed first */ 3421 /* queue check watchers, to be executed first */
2087 if (expect_false (checkcnt)) 3422 if (expect_false (checkcnt))
2088 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3423 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3424#endif
2089 3425
2090 call_pending (EV_A); 3426 EV_INVOKE_PENDING;
2091 } 3427 }
2092 while (expect_true ( 3428 while (expect_true (
2093 activecnt 3429 activecnt
2094 && !loop_done 3430 && !loop_done
2095 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3431 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2096 )); 3432 ));
2097 3433
2098 if (loop_done == EVUNLOOP_ONE) 3434 if (loop_done == EVBREAK_ONE)
2099 loop_done = EVUNLOOP_CANCEL; 3435 loop_done = EVBREAK_CANCEL;
3436
3437#if EV_FEATURE_API
3438 --loop_depth;
3439#endif
3440
3441 return activecnt;
2100} 3442}
2101 3443
2102void 3444void
2103ev_unloop (EV_P_ int how) 3445ev_break (EV_P_ int how) EV_THROW
2104{ 3446{
2105 loop_done = how; 3447 loop_done = how;
2106} 3448}
2107 3449
2108void 3450void
2109ev_ref (EV_P) 3451ev_ref (EV_P) EV_THROW
2110{ 3452{
2111 ++activecnt; 3453 ++activecnt;
2112} 3454}
2113 3455
2114void 3456void
2115ev_unref (EV_P) 3457ev_unref (EV_P) EV_THROW
2116{ 3458{
2117 --activecnt; 3459 --activecnt;
2118} 3460}
2119 3461
2120void 3462void
2121ev_now_update (EV_P) 3463ev_now_update (EV_P) EV_THROW
2122{ 3464{
2123 time_update (EV_A_ 1e100); 3465 time_update (EV_A_ 1e100);
2124} 3466}
2125 3467
2126void 3468void
2127ev_suspend (EV_P) 3469ev_suspend (EV_P) EV_THROW
2128{ 3470{
2129 ev_now_update (EV_A); 3471 ev_now_update (EV_A);
2130} 3472}
2131 3473
2132void 3474void
2133ev_resume (EV_P) 3475ev_resume (EV_P) EV_THROW
2134{ 3476{
2135 ev_tstamp mn_prev = mn_now; 3477 ev_tstamp mn_prev = mn_now;
2136 3478
2137 ev_now_update (EV_A); 3479 ev_now_update (EV_A);
2138 printf ("update %f\n", mn_now - mn_prev);//D
2139 timers_reschedule (EV_A_ mn_now - mn_prev); 3480 timers_reschedule (EV_A_ mn_now - mn_prev);
3481#if EV_PERIODIC_ENABLE
3482 /* TODO: really do this? */
2140 periodics_reschedule (EV_A); 3483 periodics_reschedule (EV_A);
3484#endif
2141} 3485}
2142 3486
2143/*****************************************************************************/ 3487/*****************************************************************************/
3488/* singly-linked list management, used when the expected list length is short */
2144 3489
2145inline_size void 3490inline_size void
2146wlist_add (WL *head, WL elem) 3491wlist_add (WL *head, WL elem)
2147{ 3492{
2148 elem->next = *head; 3493 elem->next = *head;
… …
2152inline_size void 3497inline_size void
2153wlist_del (WL *head, WL elem) 3498wlist_del (WL *head, WL elem)
2154{ 3499{
2155 while (*head) 3500 while (*head)
2156 { 3501 {
2157 if (*head == elem) 3502 if (expect_true (*head == elem))
2158 { 3503 {
2159 *head = elem->next; 3504 *head = elem->next;
2160 return; 3505 break;
2161 } 3506 }
2162 3507
2163 head = &(*head)->next; 3508 head = &(*head)->next;
2164 } 3509 }
2165} 3510}
2166 3511
3512/* internal, faster, version of ev_clear_pending */
2167inline_speed void 3513inline_speed void
2168clear_pending (EV_P_ W w) 3514clear_pending (EV_P_ W w)
2169{ 3515{
2170 if (w->pending) 3516 if (w->pending)
2171 { 3517 {
2172 pendings [ABSPRI (w)][w->pending - 1].w = 0; 3518 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2173 w->pending = 0; 3519 w->pending = 0;
2174 } 3520 }
2175} 3521}
2176 3522
2177int 3523int
2178ev_clear_pending (EV_P_ void *w) 3524ev_clear_pending (EV_P_ void *w) EV_THROW
2179{ 3525{
2180 W w_ = (W)w; 3526 W w_ = (W)w;
2181 int pending = w_->pending; 3527 int pending = w_->pending;
2182 3528
2183 if (expect_true (pending)) 3529 if (expect_true (pending))
2184 { 3530 {
2185 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 3531 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3532 p->w = (W)&pending_w;
2186 w_->pending = 0; 3533 w_->pending = 0;
2187 p->w = 0;
2188 return p->events; 3534 return p->events;
2189 } 3535 }
2190 else 3536 else
2191 return 0; 3537 return 0;
2192} 3538}
2193 3539
2194inline_size void 3540inline_size void
2195pri_adjust (EV_P_ W w) 3541pri_adjust (EV_P_ W w)
2196{ 3542{
2197 int pri = w->priority; 3543 int pri = ev_priority (w);
2198 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 3544 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2199 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 3545 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2200 w->priority = pri; 3546 ev_set_priority (w, pri);
2201} 3547}
2202 3548
2203inline_speed void 3549inline_speed void
2204ev_start (EV_P_ W w, int active) 3550ev_start (EV_P_ W w, int active)
2205{ 3551{
… …
2216} 3562}
2217 3563
2218/*****************************************************************************/ 3564/*****************************************************************************/
2219 3565
2220void noinline 3566void noinline
2221ev_io_start (EV_P_ ev_io *w) 3567ev_io_start (EV_P_ ev_io *w) EV_THROW
2222{ 3568{
2223 int fd = w->fd; 3569 int fd = w->fd;
2224 3570
2225 if (expect_false (ev_is_active (w))) 3571 if (expect_false (ev_is_active (w)))
2226 return; 3572 return;
2227 3573
2228 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3574 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2229 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3575 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2230 3576
2231 EV_FREQUENT_CHECK; 3577 EV_FREQUENT_CHECK;
2232 3578
2233 ev_start (EV_A_ (W)w, 1); 3579 ev_start (EV_A_ (W)w, 1);
2234 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3580 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2235 wlist_add (&anfds[fd].head, (WL)w); 3581 wlist_add (&anfds[fd].head, (WL)w);
2236 3582
3583 /* common bug, apparently */
3584 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3585
2237 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 3586 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2238 w->events &= ~EV__IOFDSET; 3587 w->events &= ~EV__IOFDSET;
2239 3588
2240 EV_FREQUENT_CHECK; 3589 EV_FREQUENT_CHECK;
2241} 3590}
2242 3591
2243void noinline 3592void noinline
2244ev_io_stop (EV_P_ ev_io *w) 3593ev_io_stop (EV_P_ ev_io *w) EV_THROW
2245{ 3594{
2246 clear_pending (EV_A_ (W)w); 3595 clear_pending (EV_A_ (W)w);
2247 if (expect_false (!ev_is_active (w))) 3596 if (expect_false (!ev_is_active (w)))
2248 return; 3597 return;
2249 3598
… …
2252 EV_FREQUENT_CHECK; 3601 EV_FREQUENT_CHECK;
2253 3602
2254 wlist_del (&anfds[w->fd].head, (WL)w); 3603 wlist_del (&anfds[w->fd].head, (WL)w);
2255 ev_stop (EV_A_ (W)w); 3604 ev_stop (EV_A_ (W)w);
2256 3605
2257 fd_change (EV_A_ w->fd, 1); 3606 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2258 3607
2259 EV_FREQUENT_CHECK; 3608 EV_FREQUENT_CHECK;
2260} 3609}
2261 3610
2262void noinline 3611void noinline
2263ev_timer_start (EV_P_ ev_timer *w) 3612ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2264{ 3613{
2265 if (expect_false (ev_is_active (w))) 3614 if (expect_false (ev_is_active (w)))
2266 return; 3615 return;
2267 3616
2268 ev_at (w) += mn_now; 3617 ev_at (w) += mn_now;
… …
2282 3631
2283 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3632 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2284} 3633}
2285 3634
2286void noinline 3635void noinline
2287ev_timer_stop (EV_P_ ev_timer *w) 3636ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2288{ 3637{
2289 clear_pending (EV_A_ (W)w); 3638 clear_pending (EV_A_ (W)w);
2290 if (expect_false (!ev_is_active (w))) 3639 if (expect_false (!ev_is_active (w)))
2291 return; 3640 return;
2292 3641
… …
2304 timers [active] = timers [timercnt + HEAP0]; 3653 timers [active] = timers [timercnt + HEAP0];
2305 adjustheap (timers, timercnt, active); 3654 adjustheap (timers, timercnt, active);
2306 } 3655 }
2307 } 3656 }
2308 3657
2309 EV_FREQUENT_CHECK;
2310
2311 ev_at (w) -= mn_now; 3658 ev_at (w) -= mn_now;
2312 3659
2313 ev_stop (EV_A_ (W)w); 3660 ev_stop (EV_A_ (W)w);
3661
3662 EV_FREQUENT_CHECK;
2314} 3663}
2315 3664
2316void noinline 3665void noinline
2317ev_timer_again (EV_P_ ev_timer *w) 3666ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2318{ 3667{
2319 EV_FREQUENT_CHECK; 3668 EV_FREQUENT_CHECK;
3669
3670 clear_pending (EV_A_ (W)w);
2320 3671
2321 if (ev_is_active (w)) 3672 if (ev_is_active (w))
2322 { 3673 {
2323 if (w->repeat) 3674 if (w->repeat)
2324 { 3675 {
… …
2336 } 3687 }
2337 3688
2338 EV_FREQUENT_CHECK; 3689 EV_FREQUENT_CHECK;
2339} 3690}
2340 3691
3692ev_tstamp
3693ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3694{
3695 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3696}
3697
2341#if EV_PERIODIC_ENABLE 3698#if EV_PERIODIC_ENABLE
2342void noinline 3699void noinline
2343ev_periodic_start (EV_P_ ev_periodic *w) 3700ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2344{ 3701{
2345 if (expect_false (ev_is_active (w))) 3702 if (expect_false (ev_is_active (w)))
2346 return; 3703 return;
2347 3704
2348 if (w->reschedule_cb) 3705 if (w->reschedule_cb)
2349 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3706 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2350 else if (w->interval) 3707 else if (w->interval)
2351 { 3708 {
2352 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3709 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2353 /* this formula differs from the one in periodic_reify because we do not always round up */ 3710 periodic_recalc (EV_A_ w);
2354 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2355 } 3711 }
2356 else 3712 else
2357 ev_at (w) = w->offset; 3713 ev_at (w) = w->offset;
2358 3714
2359 EV_FREQUENT_CHECK; 3715 EV_FREQUENT_CHECK;
… …
2369 3725
2370 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3726 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2371} 3727}
2372 3728
2373void noinline 3729void noinline
2374ev_periodic_stop (EV_P_ ev_periodic *w) 3730ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2375{ 3731{
2376 clear_pending (EV_A_ (W)w); 3732 clear_pending (EV_A_ (W)w);
2377 if (expect_false (!ev_is_active (w))) 3733 if (expect_false (!ev_is_active (w)))
2378 return; 3734 return;
2379 3735
… …
2391 periodics [active] = periodics [periodiccnt + HEAP0]; 3747 periodics [active] = periodics [periodiccnt + HEAP0];
2392 adjustheap (periodics, periodiccnt, active); 3748 adjustheap (periodics, periodiccnt, active);
2393 } 3749 }
2394 } 3750 }
2395 3751
2396 EV_FREQUENT_CHECK;
2397
2398 ev_stop (EV_A_ (W)w); 3752 ev_stop (EV_A_ (W)w);
3753
3754 EV_FREQUENT_CHECK;
2399} 3755}
2400 3756
2401void noinline 3757void noinline
2402ev_periodic_again (EV_P_ ev_periodic *w) 3758ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2403{ 3759{
2404 /* TODO: use adjustheap and recalculation */ 3760 /* TODO: use adjustheap and recalculation */
2405 ev_periodic_stop (EV_A_ w); 3761 ev_periodic_stop (EV_A_ w);
2406 ev_periodic_start (EV_A_ w); 3762 ev_periodic_start (EV_A_ w);
2407} 3763}
… …
2409 3765
2410#ifndef SA_RESTART 3766#ifndef SA_RESTART
2411# define SA_RESTART 0 3767# define SA_RESTART 0
2412#endif 3768#endif
2413 3769
3770#if EV_SIGNAL_ENABLE
3771
2414void noinline 3772void noinline
2415ev_signal_start (EV_P_ ev_signal *w) 3773ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2416{ 3774{
2417#if EV_MULTIPLICITY
2418 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2419#endif
2420 if (expect_false (ev_is_active (w))) 3775 if (expect_false (ev_is_active (w)))
2421 return; 3776 return;
2422 3777
2423 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3778 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2424 3779
2425 evpipe_init (EV_A); 3780#if EV_MULTIPLICITY
3781 assert (("libev: a signal must not be attached to two different loops",
3782 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2426 3783
2427 EV_FREQUENT_CHECK; 3784 signals [w->signum - 1].loop = EV_A;
3785 ECB_MEMORY_FENCE_RELEASE;
3786#endif
2428 3787
3788 EV_FREQUENT_CHECK;
3789
3790#if EV_USE_SIGNALFD
3791 if (sigfd == -2)
2429 { 3792 {
2430#ifndef _WIN32 3793 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2431 sigset_t full, prev; 3794 if (sigfd < 0 && errno == EINVAL)
2432 sigfillset (&full); 3795 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2433 sigprocmask (SIG_SETMASK, &full, &prev);
2434#endif
2435 3796
2436 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3797 if (sigfd >= 0)
3798 {
3799 fd_intern (sigfd); /* doing it twice will not hurt */
2437 3800
2438#ifndef _WIN32 3801 sigemptyset (&sigfd_set);
2439 sigprocmask (SIG_SETMASK, &prev, 0); 3802
2440#endif 3803 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3804 ev_set_priority (&sigfd_w, EV_MAXPRI);
3805 ev_io_start (EV_A_ &sigfd_w);
3806 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3807 }
2441 } 3808 }
3809
3810 if (sigfd >= 0)
3811 {
3812 /* TODO: check .head */
3813 sigaddset (&sigfd_set, w->signum);
3814 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3815
3816 signalfd (sigfd, &sigfd_set, 0);
3817 }
3818#endif
2442 3819
2443 ev_start (EV_A_ (W)w, 1); 3820 ev_start (EV_A_ (W)w, 1);
2444 wlist_add (&signals [w->signum - 1].head, (WL)w); 3821 wlist_add (&signals [w->signum - 1].head, (WL)w);
2445 3822
2446 if (!((WL)w)->next) 3823 if (!((WL)w)->next)
3824# if EV_USE_SIGNALFD
3825 if (sigfd < 0) /*TODO*/
3826# endif
2447 { 3827 {
2448#if _WIN32 3828# ifdef _WIN32
3829 evpipe_init (EV_A);
3830
2449 signal (w->signum, ev_sighandler); 3831 signal (w->signum, ev_sighandler);
2450#else 3832# else
2451 struct sigaction sa; 3833 struct sigaction sa;
3834
3835 evpipe_init (EV_A);
3836
2452 sa.sa_handler = ev_sighandler; 3837 sa.sa_handler = ev_sighandler;
2453 sigfillset (&sa.sa_mask); 3838 sigfillset (&sa.sa_mask);
2454 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3839 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2455 sigaction (w->signum, &sa, 0); 3840 sigaction (w->signum, &sa, 0);
3841
3842 if (origflags & EVFLAG_NOSIGMASK)
3843 {
3844 sigemptyset (&sa.sa_mask);
3845 sigaddset (&sa.sa_mask, w->signum);
3846 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3847 }
2456#endif 3848#endif
2457 } 3849 }
2458 3850
2459 EV_FREQUENT_CHECK; 3851 EV_FREQUENT_CHECK;
2460} 3852}
2461 3853
2462void noinline 3854void noinline
2463ev_signal_stop (EV_P_ ev_signal *w) 3855ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2464{ 3856{
2465 clear_pending (EV_A_ (W)w); 3857 clear_pending (EV_A_ (W)w);
2466 if (expect_false (!ev_is_active (w))) 3858 if (expect_false (!ev_is_active (w)))
2467 return; 3859 return;
2468 3860
… …
2470 3862
2471 wlist_del (&signals [w->signum - 1].head, (WL)w); 3863 wlist_del (&signals [w->signum - 1].head, (WL)w);
2472 ev_stop (EV_A_ (W)w); 3864 ev_stop (EV_A_ (W)w);
2473 3865
2474 if (!signals [w->signum - 1].head) 3866 if (!signals [w->signum - 1].head)
3867 {
3868#if EV_MULTIPLICITY
3869 signals [w->signum - 1].loop = 0; /* unattach from signal */
3870#endif
3871#if EV_USE_SIGNALFD
3872 if (sigfd >= 0)
3873 {
3874 sigset_t ss;
3875
3876 sigemptyset (&ss);
3877 sigaddset (&ss, w->signum);
3878 sigdelset (&sigfd_set, w->signum);
3879
3880 signalfd (sigfd, &sigfd_set, 0);
3881 sigprocmask (SIG_UNBLOCK, &ss, 0);
3882 }
3883 else
3884#endif
2475 signal (w->signum, SIG_DFL); 3885 signal (w->signum, SIG_DFL);
3886 }
2476 3887
2477 EV_FREQUENT_CHECK; 3888 EV_FREQUENT_CHECK;
2478} 3889}
3890
3891#endif
3892
3893#if EV_CHILD_ENABLE
2479 3894
2480void 3895void
2481ev_child_start (EV_P_ ev_child *w) 3896ev_child_start (EV_P_ ev_child *w) EV_THROW
2482{ 3897{
2483#if EV_MULTIPLICITY 3898#if EV_MULTIPLICITY
2484 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3899 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2485#endif 3900#endif
2486 if (expect_false (ev_is_active (w))) 3901 if (expect_false (ev_is_active (w)))
2487 return; 3902 return;
2488 3903
2489 EV_FREQUENT_CHECK; 3904 EV_FREQUENT_CHECK;
2490 3905
2491 ev_start (EV_A_ (W)w, 1); 3906 ev_start (EV_A_ (W)w, 1);
2492 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3907 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2493 3908
2494 EV_FREQUENT_CHECK; 3909 EV_FREQUENT_CHECK;
2495} 3910}
2496 3911
2497void 3912void
2498ev_child_stop (EV_P_ ev_child *w) 3913ev_child_stop (EV_P_ ev_child *w) EV_THROW
2499{ 3914{
2500 clear_pending (EV_A_ (W)w); 3915 clear_pending (EV_A_ (W)w);
2501 if (expect_false (!ev_is_active (w))) 3916 if (expect_false (!ev_is_active (w)))
2502 return; 3917 return;
2503 3918
2504 EV_FREQUENT_CHECK; 3919 EV_FREQUENT_CHECK;
2505 3920
2506 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3921 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2507 ev_stop (EV_A_ (W)w); 3922 ev_stop (EV_A_ (W)w);
2508 3923
2509 EV_FREQUENT_CHECK; 3924 EV_FREQUENT_CHECK;
2510} 3925}
3926
3927#endif
2511 3928
2512#if EV_STAT_ENABLE 3929#if EV_STAT_ENABLE
2513 3930
2514# ifdef _WIN32 3931# ifdef _WIN32
2515# undef lstat 3932# undef lstat
… …
2521#define MIN_STAT_INTERVAL 0.1074891 3938#define MIN_STAT_INTERVAL 0.1074891
2522 3939
2523static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3940static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2524 3941
2525#if EV_USE_INOTIFY 3942#if EV_USE_INOTIFY
2526# define EV_INOTIFY_BUFSIZE 8192 3943
3944/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3945# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2527 3946
2528static void noinline 3947static void noinline
2529infy_add (EV_P_ ev_stat *w) 3948infy_add (EV_P_ ev_stat *w)
2530{ 3949{
2531 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); 3950 w->wd = inotify_add_watch (fs_fd, w->path,
3951 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3952 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3953 | IN_DONT_FOLLOW | IN_MASK_ADD);
2532 3954
2533 if (w->wd < 0) 3955 if (w->wd >= 0)
3956 {
3957 struct statfs sfs;
3958
3959 /* now local changes will be tracked by inotify, but remote changes won't */
3960 /* unless the filesystem is known to be local, we therefore still poll */
3961 /* also do poll on <2.6.25, but with normal frequency */
3962
3963 if (!fs_2625)
3964 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3965 else if (!statfs (w->path, &sfs)
3966 && (sfs.f_type == 0x1373 /* devfs */
3967 || sfs.f_type == 0x4006 /* fat */
3968 || sfs.f_type == 0x4d44 /* msdos */
3969 || sfs.f_type == 0xEF53 /* ext2/3 */
3970 || sfs.f_type == 0x72b6 /* jffs2 */
3971 || sfs.f_type == 0x858458f6 /* ramfs */
3972 || sfs.f_type == 0x5346544e /* ntfs */
3973 || sfs.f_type == 0x3153464a /* jfs */
3974 || sfs.f_type == 0x9123683e /* btrfs */
3975 || sfs.f_type == 0x52654973 /* reiser3 */
3976 || sfs.f_type == 0x01021994 /* tmpfs */
3977 || sfs.f_type == 0x58465342 /* xfs */))
3978 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3979 else
3980 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2534 { 3981 }
3982 else
3983 {
3984 /* can't use inotify, continue to stat */
2535 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3985 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2536 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2537 3986
2538 /* monitor some parent directory for speedup hints */ 3987 /* if path is not there, monitor some parent directory for speedup hints */
2539 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3988 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2540 /* but an efficiency issue only */ 3989 /* but an efficiency issue only */
2541 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3990 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2542 { 3991 {
2543 char path [4096]; 3992 char path [4096];
… …
2553 if (!pend || pend == path) 4002 if (!pend || pend == path)
2554 break; 4003 break;
2555 4004
2556 *pend = 0; 4005 *pend = 0;
2557 w->wd = inotify_add_watch (fs_fd, path, mask); 4006 w->wd = inotify_add_watch (fs_fd, path, mask);
2558 } 4007 }
2559 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 4008 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2560 } 4009 }
2561 } 4010 }
2562 4011
2563 if (w->wd >= 0) 4012 if (w->wd >= 0)
2564 {
2565 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4013 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2566 4014
2567 /* now local changes will be tracked by inotify, but remote changes won't */ 4015 /* now re-arm timer, if required */
2568 /* unless the filesystem it known to be local, we therefore still poll */ 4016 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2569 /* also do poll on <2.6.25, but with normal frequency */
2570 struct statfs sfs;
2571
2572 if (fs_2625 && !statfs (w->path, &sfs))
2573 if (sfs.f_type == 0x1373 /* devfs */
2574 || sfs.f_type == 0xEF53 /* ext2/3 */
2575 || sfs.f_type == 0x3153464a /* jfs */
2576 || sfs.f_type == 0x52654973 /* reiser3 */
2577 || sfs.f_type == 0x01021994 /* tempfs */
2578 || sfs.f_type == 0x58465342 /* xfs */)
2579 return;
2580
2581 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2582 ev_timer_again (EV_A_ &w->timer); 4017 ev_timer_again (EV_A_ &w->timer);
2583 } 4018 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2584} 4019}
2585 4020
2586static void noinline 4021static void noinline
2587infy_del (EV_P_ ev_stat *w) 4022infy_del (EV_P_ ev_stat *w)
2588{ 4023{
… …
2591 4026
2592 if (wd < 0) 4027 if (wd < 0)
2593 return; 4028 return;
2594 4029
2595 w->wd = -2; 4030 w->wd = -2;
2596 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 4031 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2597 wlist_del (&fs_hash [slot].head, (WL)w); 4032 wlist_del (&fs_hash [slot].head, (WL)w);
2598 4033
2599 /* remove this watcher, if others are watching it, they will rearm */ 4034 /* remove this watcher, if others are watching it, they will rearm */
2600 inotify_rm_watch (fs_fd, wd); 4035 inotify_rm_watch (fs_fd, wd);
2601} 4036}
… …
2603static void noinline 4038static void noinline
2604infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4039infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2605{ 4040{
2606 if (slot < 0) 4041 if (slot < 0)
2607 /* overflow, need to check for all hash slots */ 4042 /* overflow, need to check for all hash slots */
2608 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4043 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2609 infy_wd (EV_A_ slot, wd, ev); 4044 infy_wd (EV_A_ slot, wd, ev);
2610 else 4045 else
2611 { 4046 {
2612 WL w_; 4047 WL w_;
2613 4048
2614 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 4049 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2615 { 4050 {
2616 ev_stat *w = (ev_stat *)w_; 4051 ev_stat *w = (ev_stat *)w_;
2617 w_ = w_->next; /* lets us remove this watcher and all before it */ 4052 w_ = w_->next; /* lets us remove this watcher and all before it */
2618 4053
2619 if (w->wd == wd || wd == -1) 4054 if (w->wd == wd || wd == -1)
2620 { 4055 {
2621 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 4056 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2622 { 4057 {
2623 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4058 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2624 w->wd = -1; 4059 w->wd = -1;
2625 infy_add (EV_A_ w); /* re-add, no matter what */ 4060 infy_add (EV_A_ w); /* re-add, no matter what */
2626 } 4061 }
2627 4062
2628 stat_timer_cb (EV_A_ &w->timer, 0); 4063 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2633 4068
2634static void 4069static void
2635infy_cb (EV_P_ ev_io *w, int revents) 4070infy_cb (EV_P_ ev_io *w, int revents)
2636{ 4071{
2637 char buf [EV_INOTIFY_BUFSIZE]; 4072 char buf [EV_INOTIFY_BUFSIZE];
2638 struct inotify_event *ev = (struct inotify_event *)buf;
2639 int ofs; 4073 int ofs;
2640 int len = read (fs_fd, buf, sizeof (buf)); 4074 int len = read (fs_fd, buf, sizeof (buf));
2641 4075
2642 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 4076 for (ofs = 0; ofs < len; )
4077 {
4078 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2643 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4079 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4080 ofs += sizeof (struct inotify_event) + ev->len;
4081 }
2644} 4082}
2645 4083
2646inline_size void 4084inline_size void ecb_cold
2647check_2625 (EV_P) 4085ev_check_2625 (EV_P)
2648{ 4086{
2649 /* kernels < 2.6.25 are borked 4087 /* kernels < 2.6.25 are borked
2650 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4088 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2651 */ 4089 */
2652 struct utsname buf; 4090 if (ev_linux_version () < 0x020619)
2653 int major, minor, micro;
2654
2655 if (uname (&buf))
2656 return; 4091 return;
2657 4092
2658 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2659 return;
2660
2661 if (major < 2
2662 || (major == 2 && minor < 6)
2663 || (major == 2 && minor == 6 && micro < 25))
2664 return;
2665
2666 fs_2625 = 1; 4093 fs_2625 = 1;
4094}
4095
4096inline_size int
4097infy_newfd (void)
4098{
4099#if defined IN_CLOEXEC && defined IN_NONBLOCK
4100 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
4101 if (fd >= 0)
4102 return fd;
4103#endif
4104 return inotify_init ();
2667} 4105}
2668 4106
2669inline_size void 4107inline_size void
2670infy_init (EV_P) 4108infy_init (EV_P)
2671{ 4109{
2672 if (fs_fd != -2) 4110 if (fs_fd != -2)
2673 return; 4111 return;
2674 4112
2675 fs_fd = -1; 4113 fs_fd = -1;
2676 4114
2677 check_2625 (EV_A); 4115 ev_check_2625 (EV_A);
2678 4116
2679 fs_fd = inotify_init (); 4117 fs_fd = infy_newfd ();
2680 4118
2681 if (fs_fd >= 0) 4119 if (fs_fd >= 0)
2682 { 4120 {
4121 fd_intern (fs_fd);
2683 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 4122 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2684 ev_set_priority (&fs_w, EV_MAXPRI); 4123 ev_set_priority (&fs_w, EV_MAXPRI);
2685 ev_io_start (EV_A_ &fs_w); 4124 ev_io_start (EV_A_ &fs_w);
4125 ev_unref (EV_A);
2686 } 4126 }
2687} 4127}
2688 4128
2689inline_size void 4129inline_size void
2690infy_fork (EV_P) 4130infy_fork (EV_P)
… …
2692 int slot; 4132 int slot;
2693 4133
2694 if (fs_fd < 0) 4134 if (fs_fd < 0)
2695 return; 4135 return;
2696 4136
4137 ev_ref (EV_A);
4138 ev_io_stop (EV_A_ &fs_w);
2697 close (fs_fd); 4139 close (fs_fd);
2698 fs_fd = inotify_init (); 4140 fs_fd = infy_newfd ();
2699 4141
4142 if (fs_fd >= 0)
4143 {
4144 fd_intern (fs_fd);
4145 ev_io_set (&fs_w, fs_fd, EV_READ);
4146 ev_io_start (EV_A_ &fs_w);
4147 ev_unref (EV_A);
4148 }
4149
2700 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4150 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2701 { 4151 {
2702 WL w_ = fs_hash [slot].head; 4152 WL w_ = fs_hash [slot].head;
2703 fs_hash [slot].head = 0; 4153 fs_hash [slot].head = 0;
2704 4154
2705 while (w_) 4155 while (w_)
… …
2710 w->wd = -1; 4160 w->wd = -1;
2711 4161
2712 if (fs_fd >= 0) 4162 if (fs_fd >= 0)
2713 infy_add (EV_A_ w); /* re-add, no matter what */ 4163 infy_add (EV_A_ w); /* re-add, no matter what */
2714 else 4164 else
4165 {
4166 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
4167 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2715 ev_timer_again (EV_A_ &w->timer); 4168 ev_timer_again (EV_A_ &w->timer);
4169 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4170 }
2716 } 4171 }
2717 } 4172 }
2718} 4173}
2719 4174
2720#endif 4175#endif
… …
2724#else 4179#else
2725# define EV_LSTAT(p,b) lstat (p, b) 4180# define EV_LSTAT(p,b) lstat (p, b)
2726#endif 4181#endif
2727 4182
2728void 4183void
2729ev_stat_stat (EV_P_ ev_stat *w) 4184ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2730{ 4185{
2731 if (lstat (w->path, &w->attr) < 0) 4186 if (lstat (w->path, &w->attr) < 0)
2732 w->attr.st_nlink = 0; 4187 w->attr.st_nlink = 0;
2733 else if (!w->attr.st_nlink) 4188 else if (!w->attr.st_nlink)
2734 w->attr.st_nlink = 1; 4189 w->attr.st_nlink = 1;
… …
2737static void noinline 4192static void noinline
2738stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4193stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2739{ 4194{
2740 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4195 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2741 4196
2742 /* we copy this here each the time so that */ 4197 ev_statdata prev = w->attr;
2743 /* prev has the old value when the callback gets invoked */
2744 w->prev = w->attr;
2745 ev_stat_stat (EV_A_ w); 4198 ev_stat_stat (EV_A_ w);
2746 4199
2747 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 4200 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2748 if ( 4201 if (
2749 w->prev.st_dev != w->attr.st_dev 4202 prev.st_dev != w->attr.st_dev
2750 || w->prev.st_ino != w->attr.st_ino 4203 || prev.st_ino != w->attr.st_ino
2751 || w->prev.st_mode != w->attr.st_mode 4204 || prev.st_mode != w->attr.st_mode
2752 || w->prev.st_nlink != w->attr.st_nlink 4205 || prev.st_nlink != w->attr.st_nlink
2753 || w->prev.st_uid != w->attr.st_uid 4206 || prev.st_uid != w->attr.st_uid
2754 || w->prev.st_gid != w->attr.st_gid 4207 || prev.st_gid != w->attr.st_gid
2755 || w->prev.st_rdev != w->attr.st_rdev 4208 || prev.st_rdev != w->attr.st_rdev
2756 || w->prev.st_size != w->attr.st_size 4209 || prev.st_size != w->attr.st_size
2757 || w->prev.st_atime != w->attr.st_atime 4210 || prev.st_atime != w->attr.st_atime
2758 || w->prev.st_mtime != w->attr.st_mtime 4211 || prev.st_mtime != w->attr.st_mtime
2759 || w->prev.st_ctime != w->attr.st_ctime 4212 || prev.st_ctime != w->attr.st_ctime
2760 ) { 4213 ) {
4214 /* we only update w->prev on actual differences */
4215 /* in case we test more often than invoke the callback, */
4216 /* to ensure that prev is always different to attr */
4217 w->prev = prev;
4218
2761 #if EV_USE_INOTIFY 4219 #if EV_USE_INOTIFY
2762 if (fs_fd >= 0) 4220 if (fs_fd >= 0)
2763 { 4221 {
2764 infy_del (EV_A_ w); 4222 infy_del (EV_A_ w);
2765 infy_add (EV_A_ w); 4223 infy_add (EV_A_ w);
… …
2770 ev_feed_event (EV_A_ w, EV_STAT); 4228 ev_feed_event (EV_A_ w, EV_STAT);
2771 } 4229 }
2772} 4230}
2773 4231
2774void 4232void
2775ev_stat_start (EV_P_ ev_stat *w) 4233ev_stat_start (EV_P_ ev_stat *w) EV_THROW
2776{ 4234{
2777 if (expect_false (ev_is_active (w))) 4235 if (expect_false (ev_is_active (w)))
2778 return; 4236 return;
2779 4237
2780 ev_stat_stat (EV_A_ w); 4238 ev_stat_stat (EV_A_ w);
… …
2790 4248
2791 if (fs_fd >= 0) 4249 if (fs_fd >= 0)
2792 infy_add (EV_A_ w); 4250 infy_add (EV_A_ w);
2793 else 4251 else
2794#endif 4252#endif
4253 {
2795 ev_timer_again (EV_A_ &w->timer); 4254 ev_timer_again (EV_A_ &w->timer);
4255 ev_unref (EV_A);
4256 }
2796 4257
2797 ev_start (EV_A_ (W)w, 1); 4258 ev_start (EV_A_ (W)w, 1);
2798 4259
2799 EV_FREQUENT_CHECK; 4260 EV_FREQUENT_CHECK;
2800} 4261}
2801 4262
2802void 4263void
2803ev_stat_stop (EV_P_ ev_stat *w) 4264ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
2804{ 4265{
2805 clear_pending (EV_A_ (W)w); 4266 clear_pending (EV_A_ (W)w);
2806 if (expect_false (!ev_is_active (w))) 4267 if (expect_false (!ev_is_active (w)))
2807 return; 4268 return;
2808 4269
2809 EV_FREQUENT_CHECK; 4270 EV_FREQUENT_CHECK;
2810 4271
2811#if EV_USE_INOTIFY 4272#if EV_USE_INOTIFY
2812 infy_del (EV_A_ w); 4273 infy_del (EV_A_ w);
2813#endif 4274#endif
4275
4276 if (ev_is_active (&w->timer))
4277 {
4278 ev_ref (EV_A);
2814 ev_timer_stop (EV_A_ &w->timer); 4279 ev_timer_stop (EV_A_ &w->timer);
4280 }
2815 4281
2816 ev_stop (EV_A_ (W)w); 4282 ev_stop (EV_A_ (W)w);
2817 4283
2818 EV_FREQUENT_CHECK; 4284 EV_FREQUENT_CHECK;
2819} 4285}
2820#endif 4286#endif
2821 4287
2822#if EV_IDLE_ENABLE 4288#if EV_IDLE_ENABLE
2823void 4289void
2824ev_idle_start (EV_P_ ev_idle *w) 4290ev_idle_start (EV_P_ ev_idle *w) EV_THROW
2825{ 4291{
2826 if (expect_false (ev_is_active (w))) 4292 if (expect_false (ev_is_active (w)))
2827 return; 4293 return;
2828 4294
2829 pri_adjust (EV_A_ (W)w); 4295 pri_adjust (EV_A_ (W)w);
… …
2842 4308
2843 EV_FREQUENT_CHECK; 4309 EV_FREQUENT_CHECK;
2844} 4310}
2845 4311
2846void 4312void
2847ev_idle_stop (EV_P_ ev_idle *w) 4313ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
2848{ 4314{
2849 clear_pending (EV_A_ (W)w); 4315 clear_pending (EV_A_ (W)w);
2850 if (expect_false (!ev_is_active (w))) 4316 if (expect_false (!ev_is_active (w)))
2851 return; 4317 return;
2852 4318
… …
2864 4330
2865 EV_FREQUENT_CHECK; 4331 EV_FREQUENT_CHECK;
2866} 4332}
2867#endif 4333#endif
2868 4334
4335#if EV_PREPARE_ENABLE
2869void 4336void
2870ev_prepare_start (EV_P_ ev_prepare *w) 4337ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
2871{ 4338{
2872 if (expect_false (ev_is_active (w))) 4339 if (expect_false (ev_is_active (w)))
2873 return; 4340 return;
2874 4341
2875 EV_FREQUENT_CHECK; 4342 EV_FREQUENT_CHECK;
… …
2880 4347
2881 EV_FREQUENT_CHECK; 4348 EV_FREQUENT_CHECK;
2882} 4349}
2883 4350
2884void 4351void
2885ev_prepare_stop (EV_P_ ev_prepare *w) 4352ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
2886{ 4353{
2887 clear_pending (EV_A_ (W)w); 4354 clear_pending (EV_A_ (W)w);
2888 if (expect_false (!ev_is_active (w))) 4355 if (expect_false (!ev_is_active (w)))
2889 return; 4356 return;
2890 4357
… …
2899 4366
2900 ev_stop (EV_A_ (W)w); 4367 ev_stop (EV_A_ (W)w);
2901 4368
2902 EV_FREQUENT_CHECK; 4369 EV_FREQUENT_CHECK;
2903} 4370}
4371#endif
2904 4372
4373#if EV_CHECK_ENABLE
2905void 4374void
2906ev_check_start (EV_P_ ev_check *w) 4375ev_check_start (EV_P_ ev_check *w) EV_THROW
2907{ 4376{
2908 if (expect_false (ev_is_active (w))) 4377 if (expect_false (ev_is_active (w)))
2909 return; 4378 return;
2910 4379
2911 EV_FREQUENT_CHECK; 4380 EV_FREQUENT_CHECK;
… …
2916 4385
2917 EV_FREQUENT_CHECK; 4386 EV_FREQUENT_CHECK;
2918} 4387}
2919 4388
2920void 4389void
2921ev_check_stop (EV_P_ ev_check *w) 4390ev_check_stop (EV_P_ ev_check *w) EV_THROW
2922{ 4391{
2923 clear_pending (EV_A_ (W)w); 4392 clear_pending (EV_A_ (W)w);
2924 if (expect_false (!ev_is_active (w))) 4393 if (expect_false (!ev_is_active (w)))
2925 return; 4394 return;
2926 4395
… …
2935 4404
2936 ev_stop (EV_A_ (W)w); 4405 ev_stop (EV_A_ (W)w);
2937 4406
2938 EV_FREQUENT_CHECK; 4407 EV_FREQUENT_CHECK;
2939} 4408}
4409#endif
2940 4410
2941#if EV_EMBED_ENABLE 4411#if EV_EMBED_ENABLE
2942void noinline 4412void noinline
2943ev_embed_sweep (EV_P_ ev_embed *w) 4413ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
2944{ 4414{
2945 ev_loop (w->other, EVLOOP_NONBLOCK); 4415 ev_run (w->other, EVRUN_NOWAIT);
2946} 4416}
2947 4417
2948static void 4418static void
2949embed_io_cb (EV_P_ ev_io *io, int revents) 4419embed_io_cb (EV_P_ ev_io *io, int revents)
2950{ 4420{
2951 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4421 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2952 4422
2953 if (ev_cb (w)) 4423 if (ev_cb (w))
2954 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4424 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2955 else 4425 else
2956 ev_loop (w->other, EVLOOP_NONBLOCK); 4426 ev_run (w->other, EVRUN_NOWAIT);
2957} 4427}
2958 4428
2959static void 4429static void
2960embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4430embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2961{ 4431{
2962 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4432 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2963 4433
2964 { 4434 {
2965 struct ev_loop *loop = w->other; 4435 EV_P = w->other;
2966 4436
2967 while (fdchangecnt) 4437 while (fdchangecnt)
2968 { 4438 {
2969 fd_reify (EV_A); 4439 fd_reify (EV_A);
2970 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4440 ev_run (EV_A_ EVRUN_NOWAIT);
2971 } 4441 }
2972 } 4442 }
2973} 4443}
2974 4444
2975static void 4445static void
… …
2978 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4448 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2979 4449
2980 ev_embed_stop (EV_A_ w); 4450 ev_embed_stop (EV_A_ w);
2981 4451
2982 { 4452 {
2983 struct ev_loop *loop = w->other; 4453 EV_P = w->other;
2984 4454
2985 ev_loop_fork (EV_A); 4455 ev_loop_fork (EV_A);
2986 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4456 ev_run (EV_A_ EVRUN_NOWAIT);
2987 } 4457 }
2988 4458
2989 ev_embed_start (EV_A_ w); 4459 ev_embed_start (EV_A_ w);
2990} 4460}
2991 4461
… …
2996 ev_idle_stop (EV_A_ idle); 4466 ev_idle_stop (EV_A_ idle);
2997} 4467}
2998#endif 4468#endif
2999 4469
3000void 4470void
3001ev_embed_start (EV_P_ ev_embed *w) 4471ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3002{ 4472{
3003 if (expect_false (ev_is_active (w))) 4473 if (expect_false (ev_is_active (w)))
3004 return; 4474 return;
3005 4475
3006 { 4476 {
3007 struct ev_loop *loop = w->other; 4477 EV_P = w->other;
3008 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4478 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3009 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4479 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3010 } 4480 }
3011 4481
3012 EV_FREQUENT_CHECK; 4482 EV_FREQUENT_CHECK;
… …
3027 4497
3028 EV_FREQUENT_CHECK; 4498 EV_FREQUENT_CHECK;
3029} 4499}
3030 4500
3031void 4501void
3032ev_embed_stop (EV_P_ ev_embed *w) 4502ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3033{ 4503{
3034 clear_pending (EV_A_ (W)w); 4504 clear_pending (EV_A_ (W)w);
3035 if (expect_false (!ev_is_active (w))) 4505 if (expect_false (!ev_is_active (w)))
3036 return; 4506 return;
3037 4507
… …
3039 4509
3040 ev_io_stop (EV_A_ &w->io); 4510 ev_io_stop (EV_A_ &w->io);
3041 ev_prepare_stop (EV_A_ &w->prepare); 4511 ev_prepare_stop (EV_A_ &w->prepare);
3042 ev_fork_stop (EV_A_ &w->fork); 4512 ev_fork_stop (EV_A_ &w->fork);
3043 4513
4514 ev_stop (EV_A_ (W)w);
4515
3044 EV_FREQUENT_CHECK; 4516 EV_FREQUENT_CHECK;
3045} 4517}
3046#endif 4518#endif
3047 4519
3048#if EV_FORK_ENABLE 4520#if EV_FORK_ENABLE
3049void 4521void
3050ev_fork_start (EV_P_ ev_fork *w) 4522ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3051{ 4523{
3052 if (expect_false (ev_is_active (w))) 4524 if (expect_false (ev_is_active (w)))
3053 return; 4525 return;
3054 4526
3055 EV_FREQUENT_CHECK; 4527 EV_FREQUENT_CHECK;
… …
3060 4532
3061 EV_FREQUENT_CHECK; 4533 EV_FREQUENT_CHECK;
3062} 4534}
3063 4535
3064void 4536void
3065ev_fork_stop (EV_P_ ev_fork *w) 4537ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3066{ 4538{
3067 clear_pending (EV_A_ (W)w); 4539 clear_pending (EV_A_ (W)w);
3068 if (expect_false (!ev_is_active (w))) 4540 if (expect_false (!ev_is_active (w)))
3069 return; 4541 return;
3070 4542
… …
3081 4553
3082 EV_FREQUENT_CHECK; 4554 EV_FREQUENT_CHECK;
3083} 4555}
3084#endif 4556#endif
3085 4557
4558#if EV_CLEANUP_ENABLE
4559void
4560ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4561{
4562 if (expect_false (ev_is_active (w)))
4563 return;
4564
4565 EV_FREQUENT_CHECK;
4566
4567 ev_start (EV_A_ (W)w, ++cleanupcnt);
4568 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4569 cleanups [cleanupcnt - 1] = w;
4570
4571 /* cleanup watchers should never keep a refcount on the loop */
4572 ev_unref (EV_A);
4573 EV_FREQUENT_CHECK;
4574}
4575
4576void
4577ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4578{
4579 clear_pending (EV_A_ (W)w);
4580 if (expect_false (!ev_is_active (w)))
4581 return;
4582
4583 EV_FREQUENT_CHECK;
4584 ev_ref (EV_A);
4585
4586 {
4587 int active = ev_active (w);
4588
4589 cleanups [active - 1] = cleanups [--cleanupcnt];
4590 ev_active (cleanups [active - 1]) = active;
4591 }
4592
4593 ev_stop (EV_A_ (W)w);
4594
4595 EV_FREQUENT_CHECK;
4596}
4597#endif
4598
3086#if EV_ASYNC_ENABLE 4599#if EV_ASYNC_ENABLE
3087void 4600void
3088ev_async_start (EV_P_ ev_async *w) 4601ev_async_start (EV_P_ ev_async *w) EV_THROW
3089{ 4602{
3090 if (expect_false (ev_is_active (w))) 4603 if (expect_false (ev_is_active (w)))
3091 return; 4604 return;
4605
4606 w->sent = 0;
3092 4607
3093 evpipe_init (EV_A); 4608 evpipe_init (EV_A);
3094 4609
3095 EV_FREQUENT_CHECK; 4610 EV_FREQUENT_CHECK;
3096 4611
… …
3100 4615
3101 EV_FREQUENT_CHECK; 4616 EV_FREQUENT_CHECK;
3102} 4617}
3103 4618
3104void 4619void
3105ev_async_stop (EV_P_ ev_async *w) 4620ev_async_stop (EV_P_ ev_async *w) EV_THROW
3106{ 4621{
3107 clear_pending (EV_A_ (W)w); 4622 clear_pending (EV_A_ (W)w);
3108 if (expect_false (!ev_is_active (w))) 4623 if (expect_false (!ev_is_active (w)))
3109 return; 4624 return;
3110 4625
… …
3121 4636
3122 EV_FREQUENT_CHECK; 4637 EV_FREQUENT_CHECK;
3123} 4638}
3124 4639
3125void 4640void
3126ev_async_send (EV_P_ ev_async *w) 4641ev_async_send (EV_P_ ev_async *w) EV_THROW
3127{ 4642{
3128 w->sent = 1; 4643 w->sent = 1;
3129 evpipe_write (EV_A_ &gotasync); 4644 evpipe_write (EV_A_ &async_pending);
3130} 4645}
3131#endif 4646#endif
3132 4647
3133/*****************************************************************************/ 4648/*****************************************************************************/
3134 4649
… …
3168 4683
3169 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4684 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3170} 4685}
3171 4686
3172void 4687void
3173ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4688ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3174{ 4689{
3175 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4690 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3176 4691
3177 if (expect_false (!once)) 4692 if (expect_false (!once))
3178 { 4693 {
3179 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4694 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3180 return; 4695 return;
3181 } 4696 }
3182 4697
3183 once->cb = cb; 4698 once->cb = cb;
3184 once->arg = arg; 4699 once->arg = arg;
… …
3198 } 4713 }
3199} 4714}
3200 4715
3201/*****************************************************************************/ 4716/*****************************************************************************/
3202 4717
3203#if 0 4718#if EV_WALK_ENABLE
3204void 4719void ecb_cold
3205ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4720ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3206{ 4721{
3207 int i, j; 4722 int i, j;
3208 ev_watcher_list *wl, *wn; 4723 ev_watcher_list *wl, *wn;
3209 4724
3210 if (types & (EV_IO | EV_EMBED)) 4725 if (types & (EV_IO | EV_EMBED))
… …
3224#if EV_USE_INOTIFY 4739#if EV_USE_INOTIFY
3225 if (ev_cb ((ev_io *)wl) == infy_cb) 4740 if (ev_cb ((ev_io *)wl) == infy_cb)
3226 ; 4741 ;
3227 else 4742 else
3228#endif 4743#endif
3229 if ((ev_io *)wl != &pipeev) 4744 if ((ev_io *)wl != &pipe_w)
3230 if (types & EV_IO) 4745 if (types & EV_IO)
3231 cb (EV_A_ EV_IO, wl); 4746 cb (EV_A_ EV_IO, wl);
3232 4747
3233 wl = wn; 4748 wl = wn;
3234 } 4749 }
… …
3253 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4768 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3254#endif 4769#endif
3255 4770
3256#if EV_IDLE_ENABLE 4771#if EV_IDLE_ENABLE
3257 if (types & EV_IDLE) 4772 if (types & EV_IDLE)
3258 for (j = NUMPRI; i--; ) 4773 for (j = NUMPRI; j--; )
3259 for (i = idlecnt [j]; i--; ) 4774 for (i = idlecnt [j]; i--; )
3260 cb (EV_A_ EV_IDLE, idles [j][i]); 4775 cb (EV_A_ EV_IDLE, idles [j][i]);
3261#endif 4776#endif
3262 4777
3263#if EV_FORK_ENABLE 4778#if EV_FORK_ENABLE
… …
3271 if (types & EV_ASYNC) 4786 if (types & EV_ASYNC)
3272 for (i = asynccnt; i--; ) 4787 for (i = asynccnt; i--; )
3273 cb (EV_A_ EV_ASYNC, asyncs [i]); 4788 cb (EV_A_ EV_ASYNC, asyncs [i]);
3274#endif 4789#endif
3275 4790
4791#if EV_PREPARE_ENABLE
3276 if (types & EV_PREPARE) 4792 if (types & EV_PREPARE)
3277 for (i = preparecnt; i--; ) 4793 for (i = preparecnt; i--; )
3278#if EV_EMBED_ENABLE 4794# if EV_EMBED_ENABLE
3279 if (ev_cb (prepares [i]) != embed_prepare_cb) 4795 if (ev_cb (prepares [i]) != embed_prepare_cb)
3280#endif 4796# endif
3281 cb (EV_A_ EV_PREPARE, prepares [i]); 4797 cb (EV_A_ EV_PREPARE, prepares [i]);
4798#endif
3282 4799
4800#if EV_CHECK_ENABLE
3283 if (types & EV_CHECK) 4801 if (types & EV_CHECK)
3284 for (i = checkcnt; i--; ) 4802 for (i = checkcnt; i--; )
3285 cb (EV_A_ EV_CHECK, checks [i]); 4803 cb (EV_A_ EV_CHECK, checks [i]);
4804#endif
3286 4805
4806#if EV_SIGNAL_ENABLE
3287 if (types & EV_SIGNAL) 4807 if (types & EV_SIGNAL)
3288 for (i = 0; i < signalmax; ++i) 4808 for (i = 0; i < EV_NSIG - 1; ++i)
3289 for (wl = signals [i].head; wl; ) 4809 for (wl = signals [i].head; wl; )
3290 { 4810 {
3291 wn = wl->next; 4811 wn = wl->next;
3292 cb (EV_A_ EV_SIGNAL, wl); 4812 cb (EV_A_ EV_SIGNAL, wl);
3293 wl = wn; 4813 wl = wn;
3294 } 4814 }
4815#endif
3295 4816
4817#if EV_CHILD_ENABLE
3296 if (types & EV_CHILD) 4818 if (types & EV_CHILD)
3297 for (i = EV_PID_HASHSIZE; i--; ) 4819 for (i = (EV_PID_HASHSIZE); i--; )
3298 for (wl = childs [i]; wl; ) 4820 for (wl = childs [i]; wl; )
3299 { 4821 {
3300 wn = wl->next; 4822 wn = wl->next;
3301 cb (EV_A_ EV_CHILD, wl); 4823 cb (EV_A_ EV_CHILD, wl);
3302 wl = wn; 4824 wl = wn;
3303 } 4825 }
4826#endif
3304/* EV_STAT 0x00001000 /* stat data changed */ 4827/* EV_STAT 0x00001000 /* stat data changed */
3305/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4828/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3306} 4829}
3307#endif 4830#endif
3308 4831
3309#if EV_MULTIPLICITY 4832#if EV_MULTIPLICITY
3310 #include "ev_wrap.h" 4833 #include "ev_wrap.h"
3311#endif 4834#endif
3312 4835
3313#ifdef __cplusplus
3314}
3315#endif
3316

Diff Legend

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