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Comparing libev/ev.c (file contents):
Revision 1.304 by root, Sun Jul 19 03:12:28 2009 UTC vs.
Revision 1.425 by root, Sun May 6 13:09:35 2012 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
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
158#include <fcntl.h> 169#include <fcntl.h>
159#include <stddef.h> 170#include <stddef.h>
160 171
161#include <stdio.h> 172#include <stdio.h>
162 173
163#include <assert.h> 174#include <assert.h>
164#include <errno.h> 175#include <errno.h>
165#include <sys/types.h> 176#include <sys/types.h>
166#include <time.h> 177#include <time.h>
178#include <limits.h>
167 179
168#include <signal.h> 180#include <signal.h>
169 181
170#ifdef EV_H 182#ifdef EV_H
171# include EV_H 183# include EV_H
172#else 184#else
173# 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
174#endif 197#endif
175 198
176#ifndef _WIN32 199#ifndef _WIN32
177# include <sys/time.h> 200# include <sys/time.h>
178# include <sys/wait.h> 201# include <sys/wait.h>
… …
182# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
183# include <windows.h> 206# include <windows.h>
184# ifndef EV_SELECT_IS_WINSOCKET 207# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 208# define EV_SELECT_IS_WINSOCKET 1
186# endif 209# endif
210# undef EV_AVOID_STDIO
187#endif 211#endif
212
213/* OS X, in its infinite idiocy, actually HARDCODES
214 * a limit of 1024 into their select. Where people have brains,
215 * OS X engineers apparently have a vacuum. Or maybe they were
216 * ordered to have a vacuum, or they do anything for money.
217 * This might help. Or not.
218 */
219#define _DARWIN_UNLIMITED_SELECT 1
188 220
189/* this block tries to deduce configuration from header-defined symbols and defaults */ 221/* this block tries to deduce configuration from header-defined symbols and defaults */
222
223/* try to deduce the maximum number of signals on this platform */
224#if defined EV_NSIG
225/* use what's provided */
226#elif defined NSIG
227# define EV_NSIG (NSIG)
228#elif defined _NSIG
229# define EV_NSIG (_NSIG)
230#elif defined SIGMAX
231# define EV_NSIG (SIGMAX+1)
232#elif defined SIG_MAX
233# define EV_NSIG (SIG_MAX+1)
234#elif defined _SIG_MAX
235# define EV_NSIG (_SIG_MAX+1)
236#elif defined MAXSIG
237# define EV_NSIG (MAXSIG+1)
238#elif defined MAX_SIG
239# define EV_NSIG (MAX_SIG+1)
240#elif defined SIGARRAYSIZE
241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242#elif defined _sys_nsig
243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244#else
245# error "unable to find value for NSIG, please report"
246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
253#endif
190 254
191#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
192# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
193# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
194# else 258# else
195# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
196# endif 260# endif
197#endif 261#endif
198 262
199#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
200# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
201# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
202# else 266# else
203# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
204# endif 268# endif
205#endif 269#endif
206 270
… …
208# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
209#endif 273#endif
210 274
211#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
212# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
213# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
214# else 278# else
215# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
216# endif 280# endif
217#endif 281#endif
218 282
219#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
220# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
221#endif 285#endif
222 286
223#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
224# ifdef _WIN32 288# ifdef _WIN32
225# define EV_USE_POLL 0 289# define EV_USE_POLL 0
226# else 290# else
227# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
228# endif 292# endif
229#endif 293#endif
230 294
231#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
232# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
233# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
234# else 298# else
235# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
236# endif 300# endif
237#endif 301#endif
238 302
… …
244# define EV_USE_PORT 0 308# define EV_USE_PORT 0
245#endif 309#endif
246 310
247#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
248# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
249# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
250# else 314# else
251# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
252# endif 316# endif
253#endif 317#endif
254 318
255#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
256# if EV_MINIMAL 320# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_PID_HASHSIZE 1
258# else
259# define EV_PID_HASHSIZE 16
260# endif
261#endif 321#endif
262 322
263#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
264# if EV_MINIMAL 324# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
265# define EV_INOTIFY_HASHSIZE 1
266# else
267# define EV_INOTIFY_HASHSIZE 16
268# endif
269#endif 325#endif
270 326
271#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
272# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
273# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
274# else 330# else
275# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
276# endif 332# endif
277#endif 333#endif
278 334
279#ifndef EV_USE_SIGNALFD 335#ifndef EV_USE_SIGNALFD
280# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) 336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
281# define EV_USE_SIGNALFD 1 337# define EV_USE_SIGNALFD EV_FEATURE_OS
282# else 338# else
283# define EV_USE_SIGNALFD 0 339# define EV_USE_SIGNALFD 0
284# endif 340# endif
285#endif 341#endif
286 342
… …
289# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
290# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
291#endif 347#endif
292 348
293#ifndef EV_VERIFY 349#ifndef EV_VERIFY
294# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
295#endif 351#endif
296 352
297#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
298# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
299#endif 355#endif
300 356
301#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
302# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
303#endif 359#endif
304 360
305/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
306/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
307#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
308# include <syscall.h> 364# include <sys/syscall.h>
309# ifdef SYS_clock_gettime 365# ifdef SYS_clock_gettime
310# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
311# undef EV_USE_MONOTONIC 367# undef EV_USE_MONOTONIC
312# define EV_USE_MONOTONIC 1 368# define EV_USE_MONOTONIC 1
313# else 369# else
… …
316# endif 372# endif
317#endif 373#endif
318 374
319/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 375/* this block fixes any misconfiguration where we know we run into trouble otherwise */
320 376
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
321#ifndef CLOCK_MONOTONIC 383#ifndef CLOCK_MONOTONIC
322# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
323# define EV_USE_MONOTONIC 0 385# define EV_USE_MONOTONIC 0
324#endif 386#endif
325 387
… …
332# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
333# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
334#endif 396#endif
335 397
336#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
337# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
338# include <sys/select.h> 401# include <sys/select.h>
339# endif 402# endif
340#endif 403#endif
341 404
342#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
343# include <sys/utsname.h>
344# include <sys/statfs.h> 406# include <sys/statfs.h>
345# include <sys/inotify.h> 407# include <sys/inotify.h>
346/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
347# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
348# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
359# include <stdint.h> 421# include <stdint.h>
360# ifndef EFD_NONBLOCK 422# ifndef EFD_NONBLOCK
361# define EFD_NONBLOCK O_NONBLOCK 423# define EFD_NONBLOCK O_NONBLOCK
362# endif 424# endif
363# ifndef EFD_CLOEXEC 425# ifndef EFD_CLOEXEC
426# ifdef O_CLOEXEC
364# define EFD_CLOEXEC O_CLOEXEC 427# define EFD_CLOEXEC O_CLOEXEC
428# else
429# define EFD_CLOEXEC 02000000
430# endif
365# endif 431# endif
366# ifdef __cplusplus 432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
367extern "C" { 433#endif
434
435#if EV_USE_SIGNALFD
436/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
437# include <stdint.h>
438# ifndef SFD_NONBLOCK
439# define SFD_NONBLOCK O_NONBLOCK
368# endif 440# endif
369int eventfd (unsigned int initval, int flags); 441# ifndef SFD_CLOEXEC
370# ifdef __cplusplus 442# ifdef O_CLOEXEC
371} 443# define SFD_CLOEXEC O_CLOEXEC
444# else
445# define SFD_CLOEXEC 02000000
446# endif
372# endif 447# endif
373#endif 448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
374 449
375#if EV_USE_SIGNALFD 450struct signalfd_siginfo
376# include <sys/signalfd.h> 451{
452 uint32_t ssi_signo;
453 char pad[128 - sizeof (uint32_t)];
454};
377#endif 455#endif
378 456
379/**/ 457/**/
380 458
381#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
382# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
383#else 461#else
384# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
385#endif 463#endif
386 464
387/* 465/*
388 * This is used to avoid floating point rounding problems. 466 * This is used to work around floating point rounding problems.
389 * It is added to ev_rt_now when scheduling periodics
390 * to ensure progress, time-wise, even when rounding
391 * errors are against us.
392 * This value is good at least till the year 4000. 467 * This value is good at least till the year 4000.
393 * Better solutions welcome.
394 */ 468 */
395#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
470/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
396 471
397#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 472#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
398#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 473#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
399/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
400 474
475#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
476#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
477
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */
480/*
481 * libecb - http://software.schmorp.de/pkg/libecb
482 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved.
486 *
487 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met:
489 *
490 * 1. Redistributions of source code must retain the above copyright notice,
491 * this list of conditions and the following disclaimer.
492 *
493 * 2. Redistributions in binary form must reproduce the above copyright
494 * notice, this list of conditions and the following disclaimer in the
495 * documentation and/or other materials provided with the distribution.
496 *
497 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
498 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
499 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
500 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
501 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE.
507 */
508
509#ifndef ECB_H
510#define ECB_H
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
401#if __GNUC__ >= 4 519 #if __GNUC__
402# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
403# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
404#else 526#else
405# define expect(expr,value) (expr) 527 #include <inttypes.h>
406# define noinline
407# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
408# define inline
409# endif 528#endif
529
530/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place.
536 */
537#ifndef ECB_GCC_VERSION
538 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0
540 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
410#endif 542 #endif
543#endif
411 544
545/*****************************************************************************/
546
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549
550#if ECB_NO_THREADS
551# define ECB_NO_SMP 1
552#endif
553
554#if ECB_NO_THREADS || ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0)
556#endif
557
558#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined __mips__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
584 #elif defined __alpha__
585 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
586 #endif
587 #endif
588#endif
589
590#ifndef ECB_MEMORY_FENCE
591 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
592 #define ECB_MEMORY_FENCE __sync_synchronize ()
593 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
594 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
595 #elif _MSC_VER >= 1400 /* VC++ 2005 */
596 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
597 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
598 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
599 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
600 #elif defined _WIN32
601 #include <WinNT.h>
602 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
603 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
604 #include <mbarrier.h>
605 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
606 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
607 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
608 #elif __xlC__
609 #define ECB_MEMORY_FENCE __sync ()
610 #endif
611#endif
612
613#ifndef ECB_MEMORY_FENCE
614 #if !ECB_AVOID_PTHREADS
615 /*
616 * if you get undefined symbol references to pthread_mutex_lock,
617 * or failure to find pthread.h, then you should implement
618 * the ECB_MEMORY_FENCE operations for your cpu/compiler
619 * OR provide pthread.h and link against the posix thread library
620 * of your system.
621 */
622 #include <pthread.h>
623 #define ECB_NEEDS_PTHREADS 1
624 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
625
626 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
627 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
628 #endif
629#endif
630
631#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
633#endif
634
635#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
636 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
637#endif
638
639/*****************************************************************************/
640
641#define ECB_C99 (__STDC_VERSION__ >= 199901L)
642
643#if __cplusplus
644 #define ecb_inline static inline
645#elif ECB_GCC_VERSION(2,5)
646 #define ecb_inline static __inline__
647#elif ECB_C99
648 #define ecb_inline static inline
649#else
650 #define ecb_inline static
651#endif
652
653#if ECB_GCC_VERSION(3,3)
654 #define ecb_restrict __restrict__
655#elif ECB_C99
656 #define ecb_restrict restrict
657#else
658 #define ecb_restrict
659#endif
660
661typedef int ecb_bool;
662
663#define ECB_CONCAT_(a, b) a ## b
664#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
665#define ECB_STRINGIFY_(a) # a
666#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
667
668#define ecb_function_ ecb_inline
669
670#if ECB_GCC_VERSION(3,1)
671 #define ecb_attribute(attrlist) __attribute__(attrlist)
672 #define ecb_is_constant(expr) __builtin_constant_p (expr)
673 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
674 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
675#else
676 #define ecb_attribute(attrlist)
677 #define ecb_is_constant(expr) 0
678 #define ecb_expect(expr,value) (expr)
679 #define ecb_prefetch(addr,rw,locality)
680#endif
681
682/* no emulation for ecb_decltype */
683#if ECB_GCC_VERSION(4,5)
684 #define ecb_decltype(x) __decltype(x)
685#elif ECB_GCC_VERSION(3,0)
686 #define ecb_decltype(x) __typeof(x)
687#endif
688
689#define ecb_noinline ecb_attribute ((__noinline__))
690#define ecb_noreturn ecb_attribute ((__noreturn__))
691#define ecb_unused ecb_attribute ((__unused__))
692#define ecb_const ecb_attribute ((__const__))
693#define ecb_pure ecb_attribute ((__pure__))
694
695#if ECB_GCC_VERSION(4,3)
696 #define ecb_artificial ecb_attribute ((__artificial__))
697 #define ecb_hot ecb_attribute ((__hot__))
698 #define ecb_cold ecb_attribute ((__cold__))
699#else
700 #define ecb_artificial
701 #define ecb_hot
702 #define ecb_cold
703#endif
704
705/* put around conditional expressions if you are very sure that the */
706/* expression is mostly true or mostly false. note that these return */
707/* booleans, not the expression. */
412#define expect_false(expr) expect ((expr) != 0, 0) 708#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
413#define expect_true(expr) expect ((expr) != 0, 1) 709#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
710/* for compatibility to the rest of the world */
711#define ecb_likely(expr) ecb_expect_true (expr)
712#define ecb_unlikely(expr) ecb_expect_false (expr)
713
714/* count trailing zero bits and count # of one bits */
715#if ECB_GCC_VERSION(3,4)
716 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
717 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
718 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
719 #define ecb_ctz32(x) __builtin_ctz (x)
720 #define ecb_ctz64(x) __builtin_ctzll (x)
721 #define ecb_popcount32(x) __builtin_popcount (x)
722 /* no popcountll */
723#else
724 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
725 ecb_function_ int
726 ecb_ctz32 (uint32_t x)
727 {
728 int r = 0;
729
730 x &= ~x + 1; /* this isolates the lowest bit */
731
732#if ECB_branchless_on_i386
733 r += !!(x & 0xaaaaaaaa) << 0;
734 r += !!(x & 0xcccccccc) << 1;
735 r += !!(x & 0xf0f0f0f0) << 2;
736 r += !!(x & 0xff00ff00) << 3;
737 r += !!(x & 0xffff0000) << 4;
738#else
739 if (x & 0xaaaaaaaa) r += 1;
740 if (x & 0xcccccccc) r += 2;
741 if (x & 0xf0f0f0f0) r += 4;
742 if (x & 0xff00ff00) r += 8;
743 if (x & 0xffff0000) r += 16;
744#endif
745
746 return r;
747 }
748
749 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
750 ecb_function_ int
751 ecb_ctz64 (uint64_t x)
752 {
753 int shift = x & 0xffffffffU ? 0 : 32;
754 return ecb_ctz32 (x >> shift) + shift;
755 }
756
757 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
758 ecb_function_ int
759 ecb_popcount32 (uint32_t x)
760 {
761 x -= (x >> 1) & 0x55555555;
762 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
763 x = ((x >> 4) + x) & 0x0f0f0f0f;
764 x *= 0x01010101;
765
766 return x >> 24;
767 }
768
769 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
770 ecb_function_ int ecb_ld32 (uint32_t x)
771 {
772 int r = 0;
773
774 if (x >> 16) { x >>= 16; r += 16; }
775 if (x >> 8) { x >>= 8; r += 8; }
776 if (x >> 4) { x >>= 4; r += 4; }
777 if (x >> 2) { x >>= 2; r += 2; }
778 if (x >> 1) { r += 1; }
779
780 return r;
781 }
782
783 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
784 ecb_function_ int ecb_ld64 (uint64_t x)
785 {
786 int r = 0;
787
788 if (x >> 32) { x >>= 32; r += 32; }
789
790 return r + ecb_ld32 (x);
791 }
792#endif
793
794ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796{
797 return ( (x * 0x0802U & 0x22110U)
798 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
799}
800
801ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
803{
804 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
805 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
806 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
807 x = ( x >> 8 ) | ( x << 8);
808
809 return x;
810}
811
812ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
814{
815 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
816 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
817 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
818 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
819 x = ( x >> 16 ) | ( x << 16);
820
821 return x;
822}
823
824/* popcount64 is only available on 64 bit cpus as gcc builtin */
825/* so for this version we are lazy */
826ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
827ecb_function_ int
828ecb_popcount64 (uint64_t x)
829{
830 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
831}
832
833ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
834ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
841
842ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
843ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
844ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
845ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
846ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
847ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
848ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
849ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
850
851#if ECB_GCC_VERSION(4,3)
852 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
853 #define ecb_bswap32(x) __builtin_bswap32 (x)
854 #define ecb_bswap64(x) __builtin_bswap64 (x)
855#else
856 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
857 ecb_function_ uint16_t
858 ecb_bswap16 (uint16_t x)
859 {
860 return ecb_rotl16 (x, 8);
861 }
862
863 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
864 ecb_function_ uint32_t
865 ecb_bswap32 (uint32_t x)
866 {
867 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
868 }
869
870 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
871 ecb_function_ uint64_t
872 ecb_bswap64 (uint64_t x)
873 {
874 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
875 }
876#endif
877
878#if ECB_GCC_VERSION(4,5)
879 #define ecb_unreachable() __builtin_unreachable ()
880#else
881 /* this seems to work fine, but gcc always emits a warning for it :/ */
882 ecb_inline void ecb_unreachable (void) ecb_noreturn;
883 ecb_inline void ecb_unreachable (void) { }
884#endif
885
886/* try to tell the compiler that some condition is definitely true */
887#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
888
889ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
890ecb_inline unsigned char
891ecb_byteorder_helper (void)
892{
893 const uint32_t u = 0x11223344;
894 return *(unsigned char *)&u;
895}
896
897ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
898ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
899ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
900ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
901
902#if ECB_GCC_VERSION(3,0) || ECB_C99
903 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
904#else
905 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
906#endif
907
908#if __cplusplus
909 template<typename T>
910 static inline T ecb_div_rd (T val, T div)
911 {
912 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
913 }
914 template<typename T>
915 static inline T ecb_div_ru (T val, T div)
916 {
917 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
918 }
919#else
920 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
921 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
922#endif
923
924#if ecb_cplusplus_does_not_suck
925 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
926 template<typename T, int N>
927 static inline int ecb_array_length (const T (&arr)[N])
928 {
929 return N;
930 }
931#else
932 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
933#endif
934
935#endif
936
937/* ECB.H END */
938
939#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
940/* if your architecture doesn't need memory fences, e.g. because it is
941 * single-cpu/core, or if you use libev in a project that doesn't use libev
942 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
943 * libev, in which cases the memory fences become nops.
944 * alternatively, you can remove this #error and link against libpthread,
945 * which will then provide the memory fences.
946 */
947# error "memory fences not defined for your architecture, please report"
948#endif
949
950#ifndef ECB_MEMORY_FENCE
951# define ECB_MEMORY_FENCE do { } while (0)
952# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
953# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
954#endif
955
956#define expect_false(cond) ecb_expect_false (cond)
957#define expect_true(cond) ecb_expect_true (cond)
958#define noinline ecb_noinline
959
414#define inline_size static inline 960#define inline_size ecb_inline
415 961
416#if EV_MINIMAL 962#if EV_FEATURE_CODE
963# define inline_speed ecb_inline
964#else
417# define inline_speed static noinline 965# define inline_speed static noinline
418#else
419# define inline_speed static inline
420#endif 966#endif
421 967
422#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
423 969
424#if EV_MINPRI == EV_MAXPRI 970#if EV_MINPRI == EV_MAXPRI
… …
437#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
438#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
439 985
440#if EV_USE_REALTIME 986#if EV_USE_REALTIME
441/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 987/* sig_atomic_t is used to avoid per-thread variables or locking but still */
442/* giving it a reasonably high chance of working on typical architetcures */ 988/* giving it a reasonably high chance of working on typical architectures */
443static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
444#endif 990#endif
445 991
446#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
447static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
448#endif 994#endif
449 995
996#ifndef EV_FD_TO_WIN32_HANDLE
997# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
998#endif
999#ifndef EV_WIN32_HANDLE_TO_FD
1000# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
1001#endif
1002#ifndef EV_WIN32_CLOSE_FD
1003# define EV_WIN32_CLOSE_FD(fd) close (fd)
1004#endif
1005
450#ifdef _WIN32 1006#ifdef _WIN32
451# include "ev_win32.c" 1007# include "ev_win32.c"
452#endif 1008#endif
453 1009
454/*****************************************************************************/ 1010/*****************************************************************************/
455 1011
1012/* define a suitable floor function (only used by periodics atm) */
1013
1014#if EV_USE_FLOOR
1015# include <math.h>
1016# define ev_floor(v) floor (v)
1017#else
1018
1019#include <float.h>
1020
1021/* a floor() replacement function, should be independent of ev_tstamp type */
1022static ev_tstamp noinline
1023ev_floor (ev_tstamp v)
1024{
1025 /* the choice of shift factor is not terribly important */
1026#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1027 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1028#else
1029 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1030#endif
1031
1032 /* argument too large for an unsigned long? */
1033 if (expect_false (v >= shift))
1034 {
1035 ev_tstamp f;
1036
1037 if (v == v - 1.)
1038 return v; /* very large number */
1039
1040 f = shift * ev_floor (v * (1. / shift));
1041 return f + ev_floor (v - f);
1042 }
1043
1044 /* special treatment for negative args? */
1045 if (expect_false (v < 0.))
1046 {
1047 ev_tstamp f = -ev_floor (-v);
1048
1049 return f - (f == v ? 0 : 1);
1050 }
1051
1052 /* fits into an unsigned long */
1053 return (unsigned long)v;
1054}
1055
1056#endif
1057
1058/*****************************************************************************/
1059
1060#ifdef __linux
1061# include <sys/utsname.h>
1062#endif
1063
1064static unsigned int noinline ecb_cold
1065ev_linux_version (void)
1066{
1067#ifdef __linux
1068 unsigned int v = 0;
1069 struct utsname buf;
1070 int i;
1071 char *p = buf.release;
1072
1073 if (uname (&buf))
1074 return 0;
1075
1076 for (i = 3+1; --i; )
1077 {
1078 unsigned int c = 0;
1079
1080 for (;;)
1081 {
1082 if (*p >= '0' && *p <= '9')
1083 c = c * 10 + *p++ - '0';
1084 else
1085 {
1086 p += *p == '.';
1087 break;
1088 }
1089 }
1090
1091 v = (v << 8) | c;
1092 }
1093
1094 return v;
1095#else
1096 return 0;
1097#endif
1098}
1099
1100/*****************************************************************************/
1101
1102#if EV_AVOID_STDIO
1103static void noinline ecb_cold
1104ev_printerr (const char *msg)
1105{
1106 write (STDERR_FILENO, msg, strlen (msg));
1107}
1108#endif
1109
456static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
457 1111
458void 1112void ecb_cold
459ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
460{ 1114{
461 syserr_cb = cb; 1115 syserr_cb = cb;
462} 1116}
463 1117
464static void noinline 1118static void noinline ecb_cold
465ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
466{ 1120{
467 if (!msg) 1121 if (!msg)
468 msg = "(libev) system error"; 1122 msg = "(libev) system error";
469 1123
470 if (syserr_cb) 1124 if (syserr_cb)
471 syserr_cb (msg); 1125 syserr_cb (msg);
472 else 1126 else
473 { 1127 {
1128#if EV_AVOID_STDIO
1129 ev_printerr (msg);
1130 ev_printerr (": ");
1131 ev_printerr (strerror (errno));
1132 ev_printerr ("\n");
1133#else
474 perror (msg); 1134 perror (msg);
1135#endif
475 abort (); 1136 abort ();
476 } 1137 }
477} 1138}
478 1139
479static void * 1140static void *
480ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
481{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
482 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
483 * implement realloc (x, 0) (as required by both ansi c-98 and 1147 * implement realloc (x, 0) (as required by both ansi c-89 and
484 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
485 */ 1149 */
486 1150
487 if (size) 1151 if (size)
488 return realloc (ptr, size); 1152 return realloc (ptr, size);
489 1153
490 free (ptr); 1154 free (ptr);
491 return 0; 1155 return 0;
1156#endif
492} 1157}
493 1158
494static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
495 1160
496void 1161void ecb_cold
497ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
498{ 1163{
499 alloc = cb; 1164 alloc = cb;
500} 1165}
501 1166
502inline_speed void * 1167inline_speed void *
… …
504{ 1169{
505 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
506 1171
507 if (!ptr && size) 1172 if (!ptr && size)
508 { 1173 {
1174#if EV_AVOID_STDIO
1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1176#else
509 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1178#endif
510 abort (); 1179 abort ();
511 } 1180 }
512 1181
513 return ptr; 1182 return ptr;
514} 1183}
… …
530 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1199 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
531 unsigned char unused; 1200 unsigned char unused;
532#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
533 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
534#endif 1203#endif
535#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
536 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
537#endif 1209#endif
538} ANFD; 1210} ANFD;
539 1211
540/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
541typedef struct 1213typedef struct
… …
583 #undef VAR 1255 #undef VAR
584 }; 1256 };
585 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
586 1258
587 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
588 struct ev_loop *ev_default_loop_ptr; 1260 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
589 1261
590#else 1262#else
591 1263
592 ev_tstamp ev_rt_now; 1264 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
593 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
594 #include "ev_vars.h" 1266 #include "ev_vars.h"
595 #undef VAR 1267 #undef VAR
596 1268
597 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
598 1270
599#endif 1271#endif
600 1272
601#if EV_MINIMAL < 2 1273#if EV_FEATURE_API
602# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1274# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
603# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1275# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
604# define EV_INVOKE_PENDING invoke_cb (EV_A) 1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
605#else 1277#else
606# define EV_RELEASE_CB (void)0 1278# define EV_RELEASE_CB (void)0
607# define EV_ACQUIRE_CB (void)0 1279# define EV_ACQUIRE_CB (void)0
608# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
609#endif 1281#endif
610 1282
611#define EVUNLOOP_RECURSE 0x80 1283#define EVBREAK_RECURSE 0x80
612 1284
613/*****************************************************************************/ 1285/*****************************************************************************/
614 1286
615#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
616ev_tstamp 1288ev_tstamp
617ev_time (void) 1289ev_time (void) EV_THROW
618{ 1290{
619#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
620 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
621 { 1293 {
622 struct timespec ts; 1294 struct timespec ts;
… …
646 return ev_time (); 1318 return ev_time ();
647} 1319}
648 1320
649#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
650ev_tstamp 1322ev_tstamp
651ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
652{ 1324{
653 return ev_rt_now; 1325 return ev_rt_now;
654} 1326}
655#endif 1327#endif
656 1328
657void 1329void
658ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
659{ 1331{
660 if (delay > 0.) 1332 if (delay > 0.)
661 { 1333 {
662#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
663 struct timespec ts; 1335 struct timespec ts;
664 1336
665 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
666 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
667
668 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
669#elif defined(_WIN32) 1339#elif defined _WIN32
670 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
671#else 1341#else
672 struct timeval tv; 1342 struct timeval tv;
673 1343
674 tv.tv_sec = (time_t)delay;
675 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
676
677 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
678 /* something not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
679 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
680 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
681#endif 1349#endif
682 } 1350 }
683} 1351}
684 1352
685/*****************************************************************************/ 1353/*****************************************************************************/
686 1354
687#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1355#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
688 1356
689/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
690/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
691inline_size int 1359inline_size int
692array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
693{ 1361{
694 int ncur = cur + 1; 1362 int ncur = cur + 1;
695 1363
696 do 1364 do
697 ncur <<= 1; 1365 ncur <<= 1;
698 while (cnt > ncur); 1366 while (cnt > ncur);
699 1367
700 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1368 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
701 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
702 { 1370 {
703 ncur *= elem; 1371 ncur *= elem;
704 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1372 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
705 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
707 } 1375 }
708 1376
709 return ncur; 1377 return ncur;
710} 1378}
711 1379
712static noinline void * 1380static void * noinline ecb_cold
713array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
714{ 1382{
715 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
716 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
717} 1385}
… …
720 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
721 1389
722#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
723 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
724 { \ 1392 { \
725 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
726 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
727 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
728 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
729 } 1397 }
730 1398
… …
748pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
749{ 1417{
750} 1418}
751 1419
752void noinline 1420void noinline
753ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
754{ 1422{
755 W w_ = (W)w; 1423 W w_ = (W)w;
756 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
757 1425
758 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
762 w_->pending = ++pendingcnt [pri]; 1430 w_->pending = ++pendingcnt [pri];
763 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1431 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
764 pendings [pri][w_->pending - 1].w = w_; 1432 pendings [pri][w_->pending - 1].w = w_;
765 pendings [pri][w_->pending - 1].events = revents; 1433 pendings [pri][w_->pending - 1].events = revents;
766 } 1434 }
1435
1436 pendingpri = NUMPRI - 1;
767} 1437}
768 1438
769inline_speed void 1439inline_speed void
770feed_reverse (EV_P_ W w) 1440feed_reverse (EV_P_ W w)
771{ 1441{
… …
791} 1461}
792 1462
793/*****************************************************************************/ 1463/*****************************************************************************/
794 1464
795inline_speed void 1465inline_speed void
796fd_event_nc (EV_P_ int fd, int revents) 1466fd_event_nocheck (EV_P_ int fd, int revents)
797{ 1467{
798 ANFD *anfd = anfds + fd; 1468 ANFD *anfd = anfds + fd;
799 ev_io *w; 1469 ev_io *w;
800 1470
801 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1471 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
813fd_event (EV_P_ int fd, int revents) 1483fd_event (EV_P_ int fd, int revents)
814{ 1484{
815 ANFD *anfd = anfds + fd; 1485 ANFD *anfd = anfds + fd;
816 1486
817 if (expect_true (!anfd->reify)) 1487 if (expect_true (!anfd->reify))
818 fd_event_nc (EV_A_ fd, revents); 1488 fd_event_nocheck (EV_A_ fd, revents);
819} 1489}
820 1490
821void 1491void
822ev_feed_fd_event (EV_P_ int fd, int revents) 1492ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
823{ 1493{
824 if (fd >= 0 && fd < anfdmax) 1494 if (fd >= 0 && fd < anfdmax)
825 fd_event_nc (EV_A_ fd, revents); 1495 fd_event_nocheck (EV_A_ fd, revents);
826} 1496}
827 1497
828/* make sure the external fd watch events are in-sync */ 1498/* make sure the external fd watch events are in-sync */
829/* with the kernel/libev internal state */ 1499/* with the kernel/libev internal state */
830inline_size void 1500inline_size void
831fd_reify (EV_P) 1501fd_reify (EV_P)
832{ 1502{
833 int i; 1503 int i;
834 1504
1505#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1506 for (i = 0; i < fdchangecnt; ++i)
1507 {
1508 int fd = fdchanges [i];
1509 ANFD *anfd = anfds + fd;
1510
1511 if (anfd->reify & EV__IOFDSET && anfd->head)
1512 {
1513 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1514
1515 if (handle != anfd->handle)
1516 {
1517 unsigned long arg;
1518
1519 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1520
1521 /* handle changed, but fd didn't - we need to do it in two steps */
1522 backend_modify (EV_A_ fd, anfd->events, 0);
1523 anfd->events = 0;
1524 anfd->handle = handle;
1525 }
1526 }
1527 }
1528#endif
1529
835 for (i = 0; i < fdchangecnt; ++i) 1530 for (i = 0; i < fdchangecnt; ++i)
836 { 1531 {
837 int fd = fdchanges [i]; 1532 int fd = fdchanges [i];
838 ANFD *anfd = anfds + fd; 1533 ANFD *anfd = anfds + fd;
839 ev_io *w; 1534 ev_io *w;
840 1535
841 unsigned char events = 0; 1536 unsigned char o_events = anfd->events;
1537 unsigned char o_reify = anfd->reify;
842 1538
843 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1539 anfd->reify = 0;
844 events |= (unsigned char)w->events;
845 1540
846#if EV_SELECT_IS_WINSOCKET 1541 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
847 if (events)
848 { 1542 {
849 unsigned long arg; 1543 anfd->events = 0;
850 #ifdef EV_FD_TO_WIN32_HANDLE 1544
851 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1545 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
852 #else 1546 anfd->events |= (unsigned char)w->events;
853 anfd->handle = _get_osfhandle (fd); 1547
854 #endif 1548 if (o_events != anfd->events)
855 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1549 o_reify = EV__IOFDSET; /* actually |= */
856 } 1550 }
857#endif
858 1551
859 { 1552 if (o_reify & EV__IOFDSET)
860 unsigned char o_events = anfd->events;
861 unsigned char o_reify = anfd->reify;
862
863 anfd->reify = 0;
864 anfd->events = events;
865
866 if (o_events != events || o_reify & EV__IOFDSET)
867 backend_modify (EV_A_ fd, o_events, events); 1553 backend_modify (EV_A_ fd, o_events, anfd->events);
868 }
869 } 1554 }
870 1555
871 fdchangecnt = 0; 1556 fdchangecnt = 0;
872} 1557}
873 1558
… …
885 fdchanges [fdchangecnt - 1] = fd; 1570 fdchanges [fdchangecnt - 1] = fd;
886 } 1571 }
887} 1572}
888 1573
889/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1574/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
890inline_speed void 1575inline_speed void ecb_cold
891fd_kill (EV_P_ int fd) 1576fd_kill (EV_P_ int fd)
892{ 1577{
893 ev_io *w; 1578 ev_io *w;
894 1579
895 while ((w = (ev_io *)anfds [fd].head)) 1580 while ((w = (ev_io *)anfds [fd].head))
… …
897 ev_io_stop (EV_A_ w); 1582 ev_io_stop (EV_A_ w);
898 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1583 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
899 } 1584 }
900} 1585}
901 1586
902/* check whether the given fd is atcually valid, for error recovery */ 1587/* check whether the given fd is actually valid, for error recovery */
903inline_size int 1588inline_size int ecb_cold
904fd_valid (int fd) 1589fd_valid (int fd)
905{ 1590{
906#ifdef _WIN32 1591#ifdef _WIN32
907 return _get_osfhandle (fd) != -1; 1592 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
908#else 1593#else
909 return fcntl (fd, F_GETFD) != -1; 1594 return fcntl (fd, F_GETFD) != -1;
910#endif 1595#endif
911} 1596}
912 1597
913/* called on EBADF to verify fds */ 1598/* called on EBADF to verify fds */
914static void noinline 1599static void noinline ecb_cold
915fd_ebadf (EV_P) 1600fd_ebadf (EV_P)
916{ 1601{
917 int fd; 1602 int fd;
918 1603
919 for (fd = 0; fd < anfdmax; ++fd) 1604 for (fd = 0; fd < anfdmax; ++fd)
… …
921 if (!fd_valid (fd) && errno == EBADF) 1606 if (!fd_valid (fd) && errno == EBADF)
922 fd_kill (EV_A_ fd); 1607 fd_kill (EV_A_ fd);
923} 1608}
924 1609
925/* called on ENOMEM in select/poll to kill some fds and retry */ 1610/* called on ENOMEM in select/poll to kill some fds and retry */
926static void noinline 1611static void noinline ecb_cold
927fd_enomem (EV_P) 1612fd_enomem (EV_P)
928{ 1613{
929 int fd; 1614 int fd;
930 1615
931 for (fd = anfdmax; fd--; ) 1616 for (fd = anfdmax; fd--; )
932 if (anfds [fd].events) 1617 if (anfds [fd].events)
933 { 1618 {
934 fd_kill (EV_A_ fd); 1619 fd_kill (EV_A_ fd);
935 return; 1620 break;
936 } 1621 }
937} 1622}
938 1623
939/* usually called after fork if backend needs to re-arm all fds from scratch */ 1624/* usually called after fork if backend needs to re-arm all fds from scratch */
940static void noinline 1625static void noinline
… …
949 anfds [fd].emask = 0; 1634 anfds [fd].emask = 0;
950 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1635 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
951 } 1636 }
952} 1637}
953 1638
1639/* used to prepare libev internal fd's */
1640/* this is not fork-safe */
1641inline_speed void
1642fd_intern (int fd)
1643{
1644#ifdef _WIN32
1645 unsigned long arg = 1;
1646 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1647#else
1648 fcntl (fd, F_SETFD, FD_CLOEXEC);
1649 fcntl (fd, F_SETFL, O_NONBLOCK);
1650#endif
1651}
1652
954/*****************************************************************************/ 1653/*****************************************************************************/
955 1654
956/* 1655/*
957 * the heap functions want a real array index. array index 0 uis guaranteed to not 1656 * the heap functions want a real array index. array index 0 is guaranteed to not
958 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1657 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
959 * the branching factor of the d-tree. 1658 * the branching factor of the d-tree.
960 */ 1659 */
961 1660
962/* 1661/*
… …
1030 1729
1031 for (;;) 1730 for (;;)
1032 { 1731 {
1033 int c = k << 1; 1732 int c = k << 1;
1034 1733
1035 if (c > N + HEAP0 - 1) 1734 if (c >= N + HEAP0)
1036 break; 1735 break;
1037 1736
1038 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1737 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1039 ? 1 : 0; 1738 ? 1 : 0;
1040 1739
… …
1076 1775
1077/* move an element suitably so it is in a correct place */ 1776/* move an element suitably so it is in a correct place */
1078inline_size void 1777inline_size void
1079adjustheap (ANHE *heap, int N, int k) 1778adjustheap (ANHE *heap, int N, int k)
1080{ 1779{
1081 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1780 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1082 upheap (heap, k); 1781 upheap (heap, k);
1083 else 1782 else
1084 downheap (heap, N, k); 1783 downheap (heap, N, k);
1085} 1784}
1086 1785
… …
1099/*****************************************************************************/ 1798/*****************************************************************************/
1100 1799
1101/* associate signal watchers to a signal signal */ 1800/* associate signal watchers to a signal signal */
1102typedef struct 1801typedef struct
1103{ 1802{
1803 EV_ATOMIC_T pending;
1804#if EV_MULTIPLICITY
1805 EV_P;
1806#endif
1104 WL head; 1807 WL head;
1105 EV_ATOMIC_T gotsig;
1106} ANSIG; 1808} ANSIG;
1107 1809
1108static ANSIG *signals; 1810static ANSIG signals [EV_NSIG - 1];
1109static int signalmax;
1110
1111static EV_ATOMIC_T gotsig;
1112 1811
1113/*****************************************************************************/ 1812/*****************************************************************************/
1114 1813
1115/* used to prepare libev internal fd's */ 1814#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1116/* this is not fork-safe */
1117inline_speed void
1118fd_intern (int fd)
1119{
1120#ifdef _WIN32
1121 unsigned long arg = 1;
1122 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1123#else
1124 fcntl (fd, F_SETFD, FD_CLOEXEC);
1125 fcntl (fd, F_SETFL, O_NONBLOCK);
1126#endif
1127}
1128 1815
1129static void noinline 1816static void noinline ecb_cold
1130evpipe_init (EV_P) 1817evpipe_init (EV_P)
1131{ 1818{
1132 if (!ev_is_active (&pipe_w)) 1819 if (!ev_is_active (&pipe_w))
1133 { 1820 {
1134#if EV_USE_EVENTFD 1821# if EV_USE_EVENTFD
1135 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1822 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1136 if (evfd < 0 && errno == EINVAL) 1823 if (evfd < 0 && errno == EINVAL)
1137 evfd = eventfd (0, 0); 1824 evfd = eventfd (0, 0);
1138 1825
1139 if (evfd >= 0) 1826 if (evfd >= 0)
… …
1141 evpipe [0] = -1; 1828 evpipe [0] = -1;
1142 fd_intern (evfd); /* doing it twice doesn't hurt */ 1829 fd_intern (evfd); /* doing it twice doesn't hurt */
1143 ev_io_set (&pipe_w, evfd, EV_READ); 1830 ev_io_set (&pipe_w, evfd, EV_READ);
1144 } 1831 }
1145 else 1832 else
1146#endif 1833# endif
1147 { 1834 {
1148 while (pipe (evpipe)) 1835 while (pipe (evpipe))
1149 ev_syserr ("(libev) error creating signal/async pipe"); 1836 ev_syserr ("(libev) error creating signal/async pipe");
1150 1837
1151 fd_intern (evpipe [0]); 1838 fd_intern (evpipe [0]);
… …
1156 ev_io_start (EV_A_ &pipe_w); 1843 ev_io_start (EV_A_ &pipe_w);
1157 ev_unref (EV_A); /* watcher should not keep loop alive */ 1844 ev_unref (EV_A); /* watcher should not keep loop alive */
1158 } 1845 }
1159} 1846}
1160 1847
1161inline_size void 1848inline_speed void
1162evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1849evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1163{ 1850{
1164 if (!*flag) 1851 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1852
1853 if (expect_true (*flag))
1854 return;
1855
1856 *flag = 1;
1857
1858 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1859
1860 pipe_write_skipped = 1;
1861
1862 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1863
1864 if (pipe_write_wanted)
1165 { 1865 {
1866 int old_errno;
1867
1868 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1869
1166 int old_errno = errno; /* save errno because write might clobber it */ 1870 old_errno = errno; /* save errno because write will clobber it */
1167
1168 *flag = 1;
1169 1871
1170#if EV_USE_EVENTFD 1872#if EV_USE_EVENTFD
1171 if (evfd >= 0) 1873 if (evfd >= 0)
1172 { 1874 {
1173 uint64_t counter = 1; 1875 uint64_t counter = 1;
1174 write (evfd, &counter, sizeof (uint64_t)); 1876 write (evfd, &counter, sizeof (uint64_t));
1175 } 1877 }
1176 else 1878 else
1177#endif 1879#endif
1880 {
1881 /* win32 people keep sending patches that change this write() to send() */
1882 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1883 /* so when you think this write should be a send instead, please find out */
1884 /* where your send() is from - it's definitely not the microsoft send, and */
1885 /* tell me. thank you. */
1886 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1887 /* check the ev documentation on how to use this flag */
1178 write (evpipe [1], &old_errno, 1); 1888 write (evpipe [1], &(evpipe [1]), 1);
1889 }
1179 1890
1180 errno = old_errno; 1891 errno = old_errno;
1181 } 1892 }
1182} 1893}
1183 1894
1184/* called whenever the libev signal pipe */ 1895/* called whenever the libev signal pipe */
1185/* got some events (signal, async) */ 1896/* got some events (signal, async) */
1186static void 1897static void
1187pipecb (EV_P_ ev_io *iow, int revents) 1898pipecb (EV_P_ ev_io *iow, int revents)
1188{ 1899{
1900 int i;
1901
1902 if (revents & EV_READ)
1903 {
1189#if EV_USE_EVENTFD 1904#if EV_USE_EVENTFD
1190 if (evfd >= 0) 1905 if (evfd >= 0)
1191 { 1906 {
1192 uint64_t counter; 1907 uint64_t counter;
1193 read (evfd, &counter, sizeof (uint64_t)); 1908 read (evfd, &counter, sizeof (uint64_t));
1194 } 1909 }
1195 else 1910 else
1196#endif 1911#endif
1197 { 1912 {
1198 char dummy; 1913 char dummy;
1914 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1199 read (evpipe [0], &dummy, 1); 1915 read (evpipe [0], &dummy, 1);
1916 }
1917 }
1918
1919 pipe_write_skipped = 0;
1920
1921 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1922
1923#if EV_SIGNAL_ENABLE
1924 if (sig_pending)
1200 } 1925 {
1926 sig_pending = 0;
1201 1927
1202 if (gotsig && ev_is_default_loop (EV_A)) 1928 ECB_MEMORY_FENCE_RELEASE;
1203 {
1204 int signum;
1205 gotsig = 0;
1206 1929
1207 for (signum = signalmax; signum--; ) 1930 for (i = EV_NSIG - 1; i--; )
1208 if (signals [signum].gotsig) 1931 if (expect_false (signals [i].pending))
1209 ev_feed_signal_event (EV_A_ signum + 1); 1932 ev_feed_signal_event (EV_A_ i + 1);
1210 } 1933 }
1934#endif
1211 1935
1212#if EV_ASYNC_ENABLE 1936#if EV_ASYNC_ENABLE
1213 if (gotasync) 1937 if (async_pending)
1214 { 1938 {
1215 int i; 1939 async_pending = 0;
1216 gotasync = 0; 1940
1941 ECB_MEMORY_FENCE_RELEASE;
1217 1942
1218 for (i = asynccnt; i--; ) 1943 for (i = asynccnt; i--; )
1219 if (asyncs [i]->sent) 1944 if (asyncs [i]->sent)
1220 { 1945 {
1221 asyncs [i]->sent = 0; 1946 asyncs [i]->sent = 0;
… …
1225#endif 1950#endif
1226} 1951}
1227 1952
1228/*****************************************************************************/ 1953/*****************************************************************************/
1229 1954
1955void
1956ev_feed_signal (int signum) EV_THROW
1957{
1958#if EV_MULTIPLICITY
1959 EV_P = signals [signum - 1].loop;
1960
1961 if (!EV_A)
1962 return;
1963#endif
1964
1965 if (!ev_active (&pipe_w))
1966 return;
1967
1968 signals [signum - 1].pending = 1;
1969 evpipe_write (EV_A_ &sig_pending);
1970}
1971
1230static void 1972static void
1231ev_sighandler (int signum) 1973ev_sighandler (int signum)
1232{ 1974{
1975#ifdef _WIN32
1976 signal (signum, ev_sighandler);
1977#endif
1978
1979 ev_feed_signal (signum);
1980}
1981
1982void noinline
1983ev_feed_signal_event (EV_P_ int signum) EV_THROW
1984{
1985 WL w;
1986
1987 if (expect_false (signum <= 0 || signum > EV_NSIG))
1988 return;
1989
1990 --signum;
1991
1233#if EV_MULTIPLICITY 1992#if EV_MULTIPLICITY
1234 struct ev_loop *loop = &default_loop_struct; 1993 /* it is permissible to try to feed a signal to the wrong loop */
1235#endif 1994 /* or, likely more useful, feeding a signal nobody is waiting for */
1236 1995
1237#if _WIN32 1996 if (expect_false (signals [signum].loop != EV_A))
1238 signal (signum, ev_sighandler);
1239#endif
1240
1241 signals [signum - 1].gotsig = 1;
1242 evpipe_write (EV_A_ &gotsig);
1243}
1244
1245void noinline
1246ev_feed_signal_event (EV_P_ int signum)
1247{
1248 WL w;
1249
1250#if EV_MULTIPLICITY
1251 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1252#endif
1253
1254 --signum;
1255
1256 if (signum < 0 || signum >= signalmax)
1257 return; 1997 return;
1998#endif
1258 1999
1259 signals [signum].gotsig = 0; 2000 signals [signum].pending = 0;
1260 2001
1261 for (w = signals [signum].head; w; w = w->next) 2002 for (w = signals [signum].head; w; w = w->next)
1262 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2003 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1263} 2004}
1264 2005
1265#if EV_USE_SIGNALFD 2006#if EV_USE_SIGNALFD
1266static void 2007static void
1267sigfdcb (EV_P_ ev_io *iow, int revents) 2008sigfdcb (EV_P_ ev_io *iow, int revents)
1268{ 2009{
1269 struct signalfd_siginfo si[4], *sip; 2010 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1270 2011
1271 for (;;) 2012 for (;;)
1272 { 2013 {
1273 ssize_t res = read (sigfd, si, sizeof (si)); 2014 ssize_t res = read (sigfd, si, sizeof (si));
1274 2015
… …
1280 break; 2021 break;
1281 } 2022 }
1282} 2023}
1283#endif 2024#endif
1284 2025
2026#endif
2027
1285/*****************************************************************************/ 2028/*****************************************************************************/
1286 2029
2030#if EV_CHILD_ENABLE
1287static WL childs [EV_PID_HASHSIZE]; 2031static WL childs [EV_PID_HASHSIZE];
1288
1289#ifndef _WIN32
1290 2032
1291static ev_signal childev; 2033static ev_signal childev;
1292 2034
1293#ifndef WIFCONTINUED 2035#ifndef WIFCONTINUED
1294# define WIFCONTINUED(status) 0 2036# define WIFCONTINUED(status) 0
… …
1299child_reap (EV_P_ int chain, int pid, int status) 2041child_reap (EV_P_ int chain, int pid, int status)
1300{ 2042{
1301 ev_child *w; 2043 ev_child *w;
1302 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2044 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1303 2045
1304 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2046 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1305 { 2047 {
1306 if ((w->pid == pid || !w->pid) 2048 if ((w->pid == pid || !w->pid)
1307 && (!traced || (w->flags & 1))) 2049 && (!traced || (w->flags & 1)))
1308 { 2050 {
1309 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2051 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1334 /* make sure we are called again until all children have been reaped */ 2076 /* make sure we are called again until all children have been reaped */
1335 /* we need to do it this way so that the callback gets called before we continue */ 2077 /* we need to do it this way so that the callback gets called before we continue */
1336 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2078 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1337 2079
1338 child_reap (EV_A_ pid, pid, status); 2080 child_reap (EV_A_ pid, pid, status);
1339 if (EV_PID_HASHSIZE > 1) 2081 if ((EV_PID_HASHSIZE) > 1)
1340 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2082 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1341} 2083}
1342 2084
1343#endif 2085#endif
1344 2086
1345/*****************************************************************************/ 2087/*****************************************************************************/
1346 2088
2089#if EV_USE_IOCP
2090# include "ev_iocp.c"
2091#endif
1347#if EV_USE_PORT 2092#if EV_USE_PORT
1348# include "ev_port.c" 2093# include "ev_port.c"
1349#endif 2094#endif
1350#if EV_USE_KQUEUE 2095#if EV_USE_KQUEUE
1351# include "ev_kqueue.c" 2096# include "ev_kqueue.c"
… …
1358#endif 2103#endif
1359#if EV_USE_SELECT 2104#if EV_USE_SELECT
1360# include "ev_select.c" 2105# include "ev_select.c"
1361#endif 2106#endif
1362 2107
1363int 2108int ecb_cold
1364ev_version_major (void) 2109ev_version_major (void) EV_THROW
1365{ 2110{
1366 return EV_VERSION_MAJOR; 2111 return EV_VERSION_MAJOR;
1367} 2112}
1368 2113
1369int 2114int ecb_cold
1370ev_version_minor (void) 2115ev_version_minor (void) EV_THROW
1371{ 2116{
1372 return EV_VERSION_MINOR; 2117 return EV_VERSION_MINOR;
1373} 2118}
1374 2119
1375/* return true if we are running with elevated privileges and should ignore env variables */ 2120/* return true if we are running with elevated privileges and should ignore env variables */
1376int inline_size 2121int inline_size ecb_cold
1377enable_secure (void) 2122enable_secure (void)
1378{ 2123{
1379#ifdef _WIN32 2124#ifdef _WIN32
1380 return 0; 2125 return 0;
1381#else 2126#else
1382 return getuid () != geteuid () 2127 return getuid () != geteuid ()
1383 || getgid () != getegid (); 2128 || getgid () != getegid ();
1384#endif 2129#endif
1385} 2130}
1386 2131
1387unsigned int 2132unsigned int ecb_cold
1388ev_supported_backends (void) 2133ev_supported_backends (void) EV_THROW
1389{ 2134{
1390 unsigned int flags = 0; 2135 unsigned int flags = 0;
1391 2136
1392 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2137 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1393 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2138 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1396 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2141 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1397 2142
1398 return flags; 2143 return flags;
1399} 2144}
1400 2145
1401unsigned int 2146unsigned int ecb_cold
1402ev_recommended_backends (void) 2147ev_recommended_backends (void) EV_THROW
1403{ 2148{
1404 unsigned int flags = ev_supported_backends (); 2149 unsigned int flags = ev_supported_backends ();
1405 2150
1406#ifndef __NetBSD__ 2151#ifndef __NetBSD__
1407 /* kqueue is borked on everything but netbsd apparently */ 2152 /* kqueue is borked on everything but netbsd apparently */
… …
1411#ifdef __APPLE__ 2156#ifdef __APPLE__
1412 /* only select works correctly on that "unix-certified" platform */ 2157 /* only select works correctly on that "unix-certified" platform */
1413 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2158 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1414 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2159 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1415#endif 2160#endif
2161#ifdef __FreeBSD__
2162 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2163#endif
1416 2164
1417 return flags; 2165 return flags;
1418} 2166}
1419 2167
2168unsigned int ecb_cold
2169ev_embeddable_backends (void) EV_THROW
2170{
2171 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2172
2173 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2174 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2175 flags &= ~EVBACKEND_EPOLL;
2176
2177 return flags;
2178}
2179
1420unsigned int 2180unsigned int
1421ev_embeddable_backends (void) 2181ev_backend (EV_P) EV_THROW
1422{ 2182{
1423 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2183 return backend;
1424
1425 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1426 /* please fix it and tell me how to detect the fix */
1427 flags &= ~EVBACKEND_EPOLL;
1428
1429 return flags;
1430} 2184}
1431 2185
2186#if EV_FEATURE_API
1432unsigned int 2187unsigned int
1433ev_backend (EV_P) 2188ev_iteration (EV_P) EV_THROW
1434{ 2189{
1435 return backend; 2190 return loop_count;
1436} 2191}
1437 2192
1438#if EV_MINIMAL < 2
1439unsigned int 2193unsigned int
1440ev_loop_count (EV_P) 2194ev_depth (EV_P) EV_THROW
1441{
1442 return loop_count;
1443}
1444
1445unsigned int
1446ev_loop_depth (EV_P)
1447{ 2195{
1448 return loop_depth; 2196 return loop_depth;
1449} 2197}
1450 2198
1451void 2199void
1452ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2200ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1453{ 2201{
1454 io_blocktime = interval; 2202 io_blocktime = interval;
1455} 2203}
1456 2204
1457void 2205void
1458ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1459{ 2207{
1460 timeout_blocktime = interval; 2208 timeout_blocktime = interval;
1461} 2209}
1462 2210
1463void 2211void
1464ev_set_userdata (EV_P_ void *data) 2212ev_set_userdata (EV_P_ void *data) EV_THROW
1465{ 2213{
1466 userdata = data; 2214 userdata = data;
1467} 2215}
1468 2216
1469void * 2217void *
1470ev_userdata (EV_P) 2218ev_userdata (EV_P) EV_THROW
1471{ 2219{
1472 return userdata; 2220 return userdata;
1473} 2221}
1474 2222
2223void
1475void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2224ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1476{ 2225{
1477 invoke_cb = invoke_pending_cb; 2226 invoke_cb = invoke_pending_cb;
1478} 2227}
1479 2228
2229void
1480void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2230ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1481{ 2231{
1482 release_cb = release; 2232 release_cb = release;
1483 acquire_cb = acquire; 2233 acquire_cb = acquire;
1484} 2234}
1485#endif 2235#endif
1486 2236
1487/* initialise a loop structure, must be zero-initialised */ 2237/* initialise a loop structure, must be zero-initialised */
1488static void noinline 2238static void noinline ecb_cold
1489loop_init (EV_P_ unsigned int flags) 2239loop_init (EV_P_ unsigned int flags) EV_THROW
1490{ 2240{
1491 if (!backend) 2241 if (!backend)
1492 { 2242 {
2243 origflags = flags;
2244
1493#if EV_USE_REALTIME 2245#if EV_USE_REALTIME
1494 if (!have_realtime) 2246 if (!have_realtime)
1495 { 2247 {
1496 struct timespec ts; 2248 struct timespec ts;
1497 2249
… …
1508 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2260 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1509 have_monotonic = 1; 2261 have_monotonic = 1;
1510 } 2262 }
1511#endif 2263#endif
1512 2264
1513 ev_rt_now = ev_time ();
1514 mn_now = get_clock ();
1515 now_floor = mn_now;
1516 rtmn_diff = ev_rt_now - mn_now;
1517#if EV_MINIMAL < 2
1518 invoke_cb = ev_invoke_pending;
1519#endif
1520
1521 io_blocktime = 0.;
1522 timeout_blocktime = 0.;
1523 backend = 0;
1524 backend_fd = -1;
1525 gotasync = 0;
1526#if EV_USE_INOTIFY
1527 fs_fd = -2;
1528#endif
1529#if EV_USE_SIGNALFD
1530 sigfd = -2;
1531#endif
1532
1533 /* pid check not overridable via env */ 2265 /* pid check not overridable via env */
1534#ifndef _WIN32 2266#ifndef _WIN32
1535 if (flags & EVFLAG_FORKCHECK) 2267 if (flags & EVFLAG_FORKCHECK)
1536 curpid = getpid (); 2268 curpid = getpid ();
1537#endif 2269#endif
… …
1539 if (!(flags & EVFLAG_NOENV) 2271 if (!(flags & EVFLAG_NOENV)
1540 && !enable_secure () 2272 && !enable_secure ()
1541 && getenv ("LIBEV_FLAGS")) 2273 && getenv ("LIBEV_FLAGS"))
1542 flags = atoi (getenv ("LIBEV_FLAGS")); 2274 flags = atoi (getenv ("LIBEV_FLAGS"));
1543 2275
1544 if (!(flags & 0x0000ffffU)) 2276 ev_rt_now = ev_time ();
2277 mn_now = get_clock ();
2278 now_floor = mn_now;
2279 rtmn_diff = ev_rt_now - mn_now;
2280#if EV_FEATURE_API
2281 invoke_cb = ev_invoke_pending;
2282#endif
2283
2284 io_blocktime = 0.;
2285 timeout_blocktime = 0.;
2286 backend = 0;
2287 backend_fd = -1;
2288 sig_pending = 0;
2289#if EV_ASYNC_ENABLE
2290 async_pending = 0;
2291#endif
2292 pipe_write_skipped = 0;
2293 pipe_write_wanted = 0;
2294#if EV_USE_INOTIFY
2295 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2296#endif
2297#if EV_USE_SIGNALFD
2298 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2299#endif
2300
2301 if (!(flags & EVBACKEND_MASK))
1545 flags |= ev_recommended_backends (); 2302 flags |= ev_recommended_backends ();
1546 2303
2304#if EV_USE_IOCP
2305 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2306#endif
1547#if EV_USE_PORT 2307#if EV_USE_PORT
1548 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2308 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1549#endif 2309#endif
1550#if EV_USE_KQUEUE 2310#if EV_USE_KQUEUE
1551 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2311 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1560 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1561#endif 2321#endif
1562 2322
1563 ev_prepare_init (&pending_w, pendingcb); 2323 ev_prepare_init (&pending_w, pendingcb);
1564 2324
2325#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1565 ev_init (&pipe_w, pipecb); 2326 ev_init (&pipe_w, pipecb);
1566 ev_set_priority (&pipe_w, EV_MAXPRI); 2327 ev_set_priority (&pipe_w, EV_MAXPRI);
2328#endif
1567 } 2329 }
1568} 2330}
1569 2331
1570/* free up a loop structure */ 2332/* free up a loop structure */
1571static void noinline 2333void ecb_cold
1572loop_destroy (EV_P) 2334ev_loop_destroy (EV_P)
1573{ 2335{
1574 int i; 2336 int i;
2337
2338#if EV_MULTIPLICITY
2339 /* mimic free (0) */
2340 if (!EV_A)
2341 return;
2342#endif
2343
2344#if EV_CLEANUP_ENABLE
2345 /* queue cleanup watchers (and execute them) */
2346 if (expect_false (cleanupcnt))
2347 {
2348 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2349 EV_INVOKE_PENDING;
2350 }
2351#endif
2352
2353#if EV_CHILD_ENABLE
2354 if (ev_is_active (&childev))
2355 {
2356 ev_ref (EV_A); /* child watcher */
2357 ev_signal_stop (EV_A_ &childev);
2358 }
2359#endif
1575 2360
1576 if (ev_is_active (&pipe_w)) 2361 if (ev_is_active (&pipe_w))
1577 { 2362 {
1578 /*ev_ref (EV_A);*/ 2363 /*ev_ref (EV_A);*/
1579 /*ev_io_stop (EV_A_ &pipe_w);*/ 2364 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1583 close (evfd); 2368 close (evfd);
1584#endif 2369#endif
1585 2370
1586 if (evpipe [0] >= 0) 2371 if (evpipe [0] >= 0)
1587 { 2372 {
1588 close (evpipe [0]); 2373 EV_WIN32_CLOSE_FD (evpipe [0]);
1589 close (evpipe [1]); 2374 EV_WIN32_CLOSE_FD (evpipe [1]);
1590 } 2375 }
1591 } 2376 }
1592 2377
1593#if EV_USE_SIGNALFD 2378#if EV_USE_SIGNALFD
1594 if (ev_is_active (&sigfd_w)) 2379 if (ev_is_active (&sigfd_w))
1595 {
1596 /*ev_ref (EV_A);*/
1597 /*ev_io_stop (EV_A_ &sigfd_w);*/
1598
1599 close (sigfd); 2380 close (sigfd);
1600 }
1601#endif 2381#endif
1602 2382
1603#if EV_USE_INOTIFY 2383#if EV_USE_INOTIFY
1604 if (fs_fd >= 0) 2384 if (fs_fd >= 0)
1605 close (fs_fd); 2385 close (fs_fd);
1606#endif 2386#endif
1607 2387
1608 if (backend_fd >= 0) 2388 if (backend_fd >= 0)
1609 close (backend_fd); 2389 close (backend_fd);
1610 2390
2391#if EV_USE_IOCP
2392 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2393#endif
1611#if EV_USE_PORT 2394#if EV_USE_PORT
1612 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2395 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1613#endif 2396#endif
1614#if EV_USE_KQUEUE 2397#if EV_USE_KQUEUE
1615 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2398 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1630#if EV_IDLE_ENABLE 2413#if EV_IDLE_ENABLE
1631 array_free (idle, [i]); 2414 array_free (idle, [i]);
1632#endif 2415#endif
1633 } 2416 }
1634 2417
1635 ev_free (anfds); anfdmax = 0; 2418 ev_free (anfds); anfds = 0; anfdmax = 0;
1636 2419
1637 /* have to use the microsoft-never-gets-it-right macro */ 2420 /* have to use the microsoft-never-gets-it-right macro */
1638 array_free (rfeed, EMPTY); 2421 array_free (rfeed, EMPTY);
1639 array_free (fdchange, EMPTY); 2422 array_free (fdchange, EMPTY);
1640 array_free (timer, EMPTY); 2423 array_free (timer, EMPTY);
… …
1642 array_free (periodic, EMPTY); 2425 array_free (periodic, EMPTY);
1643#endif 2426#endif
1644#if EV_FORK_ENABLE 2427#if EV_FORK_ENABLE
1645 array_free (fork, EMPTY); 2428 array_free (fork, EMPTY);
1646#endif 2429#endif
2430#if EV_CLEANUP_ENABLE
2431 array_free (cleanup, EMPTY);
2432#endif
1647 array_free (prepare, EMPTY); 2433 array_free (prepare, EMPTY);
1648 array_free (check, EMPTY); 2434 array_free (check, EMPTY);
1649#if EV_ASYNC_ENABLE 2435#if EV_ASYNC_ENABLE
1650 array_free (async, EMPTY); 2436 array_free (async, EMPTY);
1651#endif 2437#endif
1652 2438
1653 backend = 0; 2439 backend = 0;
2440
2441#if EV_MULTIPLICITY
2442 if (ev_is_default_loop (EV_A))
2443#endif
2444 ev_default_loop_ptr = 0;
2445#if EV_MULTIPLICITY
2446 else
2447 ev_free (EV_A);
2448#endif
1654} 2449}
1655 2450
1656#if EV_USE_INOTIFY 2451#if EV_USE_INOTIFY
1657inline_size void infy_fork (EV_P); 2452inline_size void infy_fork (EV_P);
1658#endif 2453#endif
… …
1673 infy_fork (EV_A); 2468 infy_fork (EV_A);
1674#endif 2469#endif
1675 2470
1676 if (ev_is_active (&pipe_w)) 2471 if (ev_is_active (&pipe_w))
1677 { 2472 {
1678 /* this "locks" the handlers against writing to the pipe */ 2473 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1679 /* while we modify the fd vars */
1680 gotsig = 1;
1681#if EV_ASYNC_ENABLE
1682 gotasync = 1;
1683#endif
1684 2474
1685 ev_ref (EV_A); 2475 ev_ref (EV_A);
1686 ev_io_stop (EV_A_ &pipe_w); 2476 ev_io_stop (EV_A_ &pipe_w);
1687 2477
1688#if EV_USE_EVENTFD 2478#if EV_USE_EVENTFD
… …
1690 close (evfd); 2480 close (evfd);
1691#endif 2481#endif
1692 2482
1693 if (evpipe [0] >= 0) 2483 if (evpipe [0] >= 0)
1694 { 2484 {
1695 close (evpipe [0]); 2485 EV_WIN32_CLOSE_FD (evpipe [0]);
1696 close (evpipe [1]); 2486 EV_WIN32_CLOSE_FD (evpipe [1]);
1697 } 2487 }
1698 2488
2489#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1699 evpipe_init (EV_A); 2490 evpipe_init (EV_A);
1700 /* now iterate over everything, in case we missed something */ 2491 /* now iterate over everything, in case we missed something */
1701 pipecb (EV_A_ &pipe_w, EV_READ); 2492 pipecb (EV_A_ &pipe_w, EV_READ);
2493#endif
1702 } 2494 }
1703 2495
1704 postfork = 0; 2496 postfork = 0;
1705} 2497}
1706 2498
1707#if EV_MULTIPLICITY 2499#if EV_MULTIPLICITY
1708 2500
1709struct ev_loop * 2501struct ev_loop * ecb_cold
1710ev_loop_new (unsigned int flags) 2502ev_loop_new (unsigned int flags) EV_THROW
1711{ 2503{
1712 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2504 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1713 2505
1714 memset (loop, 0, sizeof (struct ev_loop)); 2506 memset (EV_A, 0, sizeof (struct ev_loop));
1715 loop_init (EV_A_ flags); 2507 loop_init (EV_A_ flags);
1716 2508
1717 if (ev_backend (EV_A)) 2509 if (ev_backend (EV_A))
1718 return loop; 2510 return EV_A;
1719 2511
2512 ev_free (EV_A);
1720 return 0; 2513 return 0;
1721} 2514}
1722 2515
1723void
1724ev_loop_destroy (EV_P)
1725{
1726 loop_destroy (EV_A);
1727 ev_free (loop);
1728}
1729
1730void
1731ev_loop_fork (EV_P)
1732{
1733 postfork = 1; /* must be in line with ev_default_fork */
1734}
1735#endif /* multiplicity */ 2516#endif /* multiplicity */
1736 2517
1737#if EV_VERIFY 2518#if EV_VERIFY
1738static void noinline 2519static void noinline ecb_cold
1739verify_watcher (EV_P_ W w) 2520verify_watcher (EV_P_ W w)
1740{ 2521{
1741 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2522 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1742 2523
1743 if (w->pending) 2524 if (w->pending)
1744 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2525 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1745} 2526}
1746 2527
1747static void noinline 2528static void noinline ecb_cold
1748verify_heap (EV_P_ ANHE *heap, int N) 2529verify_heap (EV_P_ ANHE *heap, int N)
1749{ 2530{
1750 int i; 2531 int i;
1751 2532
1752 for (i = HEAP0; i < N + HEAP0; ++i) 2533 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1757 2538
1758 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2539 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1759 } 2540 }
1760} 2541}
1761 2542
1762static void noinline 2543static void noinline ecb_cold
1763array_verify (EV_P_ W *ws, int cnt) 2544array_verify (EV_P_ W *ws, int cnt)
1764{ 2545{
1765 while (cnt--) 2546 while (cnt--)
1766 { 2547 {
1767 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2548 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1768 verify_watcher (EV_A_ ws [cnt]); 2549 verify_watcher (EV_A_ ws [cnt]);
1769 } 2550 }
1770} 2551}
1771#endif 2552#endif
1772 2553
1773#if EV_MINIMAL < 2 2554#if EV_FEATURE_API
1774void 2555void ecb_cold
1775ev_loop_verify (EV_P) 2556ev_verify (EV_P) EV_THROW
1776{ 2557{
1777#if EV_VERIFY 2558#if EV_VERIFY
1778 int i; 2559 int i;
1779 WL w; 2560 WL w;
1780 2561
… …
1814#if EV_FORK_ENABLE 2595#if EV_FORK_ENABLE
1815 assert (forkmax >= forkcnt); 2596 assert (forkmax >= forkcnt);
1816 array_verify (EV_A_ (W *)forks, forkcnt); 2597 array_verify (EV_A_ (W *)forks, forkcnt);
1817#endif 2598#endif
1818 2599
2600#if EV_CLEANUP_ENABLE
2601 assert (cleanupmax >= cleanupcnt);
2602 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2603#endif
2604
1819#if EV_ASYNC_ENABLE 2605#if EV_ASYNC_ENABLE
1820 assert (asyncmax >= asynccnt); 2606 assert (asyncmax >= asynccnt);
1821 array_verify (EV_A_ (W *)asyncs, asynccnt); 2607 array_verify (EV_A_ (W *)asyncs, asynccnt);
1822#endif 2608#endif
1823 2609
2610#if EV_PREPARE_ENABLE
1824 assert (preparemax >= preparecnt); 2611 assert (preparemax >= preparecnt);
1825 array_verify (EV_A_ (W *)prepares, preparecnt); 2612 array_verify (EV_A_ (W *)prepares, preparecnt);
2613#endif
1826 2614
2615#if EV_CHECK_ENABLE
1827 assert (checkmax >= checkcnt); 2616 assert (checkmax >= checkcnt);
1828 array_verify (EV_A_ (W *)checks, checkcnt); 2617 array_verify (EV_A_ (W *)checks, checkcnt);
2618#endif
1829 2619
1830# if 0 2620# if 0
2621#if EV_CHILD_ENABLE
1831 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2622 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1832 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2623 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2624#endif
1833# endif 2625# endif
1834#endif 2626#endif
1835} 2627}
1836#endif 2628#endif
1837 2629
1838#if EV_MULTIPLICITY 2630#if EV_MULTIPLICITY
1839struct ev_loop * 2631struct ev_loop * ecb_cold
1840ev_default_loop_init (unsigned int flags)
1841#else 2632#else
1842int 2633int
2634#endif
1843ev_default_loop (unsigned int flags) 2635ev_default_loop (unsigned int flags) EV_THROW
1844#endif
1845{ 2636{
1846 if (!ev_default_loop_ptr) 2637 if (!ev_default_loop_ptr)
1847 { 2638 {
1848#if EV_MULTIPLICITY 2639#if EV_MULTIPLICITY
1849 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2640 EV_P = ev_default_loop_ptr = &default_loop_struct;
1850#else 2641#else
1851 ev_default_loop_ptr = 1; 2642 ev_default_loop_ptr = 1;
1852#endif 2643#endif
1853 2644
1854 loop_init (EV_A_ flags); 2645 loop_init (EV_A_ flags);
1855 2646
1856 if (ev_backend (EV_A)) 2647 if (ev_backend (EV_A))
1857 { 2648 {
1858#ifndef _WIN32 2649#if EV_CHILD_ENABLE
1859 ev_signal_init (&childev, childcb, SIGCHLD); 2650 ev_signal_init (&childev, childcb, SIGCHLD);
1860 ev_set_priority (&childev, EV_MAXPRI); 2651 ev_set_priority (&childev, EV_MAXPRI);
1861 ev_signal_start (EV_A_ &childev); 2652 ev_signal_start (EV_A_ &childev);
1862 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2653 ev_unref (EV_A); /* child watcher should not keep loop alive */
1863#endif 2654#endif
… …
1868 2659
1869 return ev_default_loop_ptr; 2660 return ev_default_loop_ptr;
1870} 2661}
1871 2662
1872void 2663void
1873ev_default_destroy (void) 2664ev_loop_fork (EV_P) EV_THROW
1874{ 2665{
1875#if EV_MULTIPLICITY
1876 struct ev_loop *loop = ev_default_loop_ptr;
1877#endif
1878
1879 ev_default_loop_ptr = 0;
1880
1881#ifndef _WIN32
1882 ev_ref (EV_A); /* child watcher */
1883 ev_signal_stop (EV_A_ &childev);
1884#endif
1885
1886 loop_destroy (EV_A);
1887}
1888
1889void
1890ev_default_fork (void)
1891{
1892#if EV_MULTIPLICITY
1893 struct ev_loop *loop = ev_default_loop_ptr;
1894#endif
1895
1896 postfork = 1; /* must be in line with ev_loop_fork */ 2666 postfork = 1; /* must be in line with ev_default_fork */
1897} 2667}
1898 2668
1899/*****************************************************************************/ 2669/*****************************************************************************/
1900 2670
1901void 2671void
… …
1903{ 2673{
1904 EV_CB_INVOKE ((W)w, revents); 2674 EV_CB_INVOKE ((W)w, revents);
1905} 2675}
1906 2676
1907unsigned int 2677unsigned int
1908ev_pending_count (EV_P) 2678ev_pending_count (EV_P) EV_THROW
1909{ 2679{
1910 int pri; 2680 int pri;
1911 unsigned int count = 0; 2681 unsigned int count = 0;
1912 2682
1913 for (pri = NUMPRI; pri--; ) 2683 for (pri = NUMPRI; pri--; )
… …
1917} 2687}
1918 2688
1919void noinline 2689void noinline
1920ev_invoke_pending (EV_P) 2690ev_invoke_pending (EV_P)
1921{ 2691{
1922 int pri; 2692 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1923
1924 for (pri = NUMPRI; pri--; )
1925 while (pendingcnt [pri]) 2693 while (pendingcnt [pendingpri])
1926 { 2694 {
1927 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2695 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1928
1929 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1930 /* ^ this is no longer true, as pending_w could be here */
1931 2696
1932 p->w->pending = 0; 2697 p->w->pending = 0;
1933 EV_CB_INVOKE (p->w, p->events); 2698 EV_CB_INVOKE (p->w, p->events);
1934 EV_FREQUENT_CHECK; 2699 EV_FREQUENT_CHECK;
1935 } 2700 }
… …
1992 EV_FREQUENT_CHECK; 2757 EV_FREQUENT_CHECK;
1993 feed_reverse (EV_A_ (W)w); 2758 feed_reverse (EV_A_ (W)w);
1994 } 2759 }
1995 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2760 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1996 2761
1997 feed_reverse_done (EV_A_ EV_TIMEOUT); 2762 feed_reverse_done (EV_A_ EV_TIMER);
1998 } 2763 }
1999} 2764}
2000 2765
2001#if EV_PERIODIC_ENABLE 2766#if EV_PERIODIC_ENABLE
2767
2768static void noinline
2769periodic_recalc (EV_P_ ev_periodic *w)
2770{
2771 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2772 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2773
2774 /* the above almost always errs on the low side */
2775 while (at <= ev_rt_now)
2776 {
2777 ev_tstamp nat = at + w->interval;
2778
2779 /* when resolution fails us, we use ev_rt_now */
2780 if (expect_false (nat == at))
2781 {
2782 at = ev_rt_now;
2783 break;
2784 }
2785
2786 at = nat;
2787 }
2788
2789 ev_at (w) = at;
2790}
2791
2002/* make periodics pending */ 2792/* make periodics pending */
2003inline_size void 2793inline_size void
2004periodics_reify (EV_P) 2794periodics_reify (EV_P)
2005{ 2795{
2006 EV_FREQUENT_CHECK; 2796 EV_FREQUENT_CHECK;
… …
2025 ANHE_at_cache (periodics [HEAP0]); 2815 ANHE_at_cache (periodics [HEAP0]);
2026 downheap (periodics, periodiccnt, HEAP0); 2816 downheap (periodics, periodiccnt, HEAP0);
2027 } 2817 }
2028 else if (w->interval) 2818 else if (w->interval)
2029 { 2819 {
2030 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2820 periodic_recalc (EV_A_ w);
2031 /* if next trigger time is not sufficiently in the future, put it there */
2032 /* this might happen because of floating point inexactness */
2033 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2034 {
2035 ev_at (w) += w->interval;
2036
2037 /* if interval is unreasonably low we might still have a time in the past */
2038 /* so correct this. this will make the periodic very inexact, but the user */
2039 /* has effectively asked to get triggered more often than possible */
2040 if (ev_at (w) < ev_rt_now)
2041 ev_at (w) = ev_rt_now;
2042 }
2043
2044 ANHE_at_cache (periodics [HEAP0]); 2821 ANHE_at_cache (periodics [HEAP0]);
2045 downheap (periodics, periodiccnt, HEAP0); 2822 downheap (periodics, periodiccnt, HEAP0);
2046 } 2823 }
2047 else 2824 else
2048 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2825 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2055 feed_reverse_done (EV_A_ EV_PERIODIC); 2832 feed_reverse_done (EV_A_ EV_PERIODIC);
2056 } 2833 }
2057} 2834}
2058 2835
2059/* simply recalculate all periodics */ 2836/* simply recalculate all periodics */
2060/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2837/* TODO: maybe ensure that at least one event happens when jumping forward? */
2061static void noinline 2838static void noinline ecb_cold
2062periodics_reschedule (EV_P) 2839periodics_reschedule (EV_P)
2063{ 2840{
2064 int i; 2841 int i;
2065 2842
2066 /* adjust periodics after time jump */ 2843 /* adjust periodics after time jump */
… …
2069 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2846 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2070 2847
2071 if (w->reschedule_cb) 2848 if (w->reschedule_cb)
2072 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2849 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2073 else if (w->interval) 2850 else if (w->interval)
2074 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2851 periodic_recalc (EV_A_ w);
2075 2852
2076 ANHE_at_cache (periodics [i]); 2853 ANHE_at_cache (periodics [i]);
2077 } 2854 }
2078 2855
2079 reheap (periodics, periodiccnt); 2856 reheap (periodics, periodiccnt);
2080} 2857}
2081#endif 2858#endif
2082 2859
2083/* adjust all timers by a given offset */ 2860/* adjust all timers by a given offset */
2084static void noinline 2861static void noinline ecb_cold
2085timers_reschedule (EV_P_ ev_tstamp adjust) 2862timers_reschedule (EV_P_ ev_tstamp adjust)
2086{ 2863{
2087 int i; 2864 int i;
2088 2865
2089 for (i = 0; i < timercnt; ++i) 2866 for (i = 0; i < timercnt; ++i)
… …
2093 ANHE_at_cache (*he); 2870 ANHE_at_cache (*he);
2094 } 2871 }
2095} 2872}
2096 2873
2097/* fetch new monotonic and realtime times from the kernel */ 2874/* fetch new monotonic and realtime times from the kernel */
2098/* also detetc if there was a timejump, and act accordingly */ 2875/* also detect if there was a timejump, and act accordingly */
2099inline_speed void 2876inline_speed void
2100time_update (EV_P_ ev_tstamp max_block) 2877time_update (EV_P_ ev_tstamp max_block)
2101{ 2878{
2102#if EV_USE_MONOTONIC 2879#if EV_USE_MONOTONIC
2103 if (expect_true (have_monotonic)) 2880 if (expect_true (have_monotonic))
… …
2126 * doesn't hurt either as we only do this on time-jumps or 2903 * doesn't hurt either as we only do this on time-jumps or
2127 * in the unlikely event of having been preempted here. 2904 * in the unlikely event of having been preempted here.
2128 */ 2905 */
2129 for (i = 4; --i; ) 2906 for (i = 4; --i; )
2130 { 2907 {
2908 ev_tstamp diff;
2131 rtmn_diff = ev_rt_now - mn_now; 2909 rtmn_diff = ev_rt_now - mn_now;
2132 2910
2911 diff = odiff - rtmn_diff;
2912
2133 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2913 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2134 return; /* all is well */ 2914 return; /* all is well */
2135 2915
2136 ev_rt_now = ev_time (); 2916 ev_rt_now = ev_time ();
2137 mn_now = get_clock (); 2917 mn_now = get_clock ();
2138 now_floor = mn_now; 2918 now_floor = mn_now;
… …
2160 2940
2161 mn_now = ev_rt_now; 2941 mn_now = ev_rt_now;
2162 } 2942 }
2163} 2943}
2164 2944
2165void 2945int
2166ev_loop (EV_P_ int flags) 2946ev_run (EV_P_ int flags)
2167{ 2947{
2168#if EV_MINIMAL < 2 2948#if EV_FEATURE_API
2169 ++loop_depth; 2949 ++loop_depth;
2170#endif 2950#endif
2171 2951
2172 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2952 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2173 2953
2174 loop_done = EVUNLOOP_CANCEL; 2954 loop_done = EVBREAK_CANCEL;
2175 2955
2176 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2956 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2177 2957
2178 do 2958 do
2179 { 2959 {
2180#if EV_VERIFY >= 2 2960#if EV_VERIFY >= 2
2181 ev_loop_verify (EV_A); 2961 ev_verify (EV_A);
2182#endif 2962#endif
2183 2963
2184#ifndef _WIN32 2964#ifndef _WIN32
2185 if (expect_false (curpid)) /* penalise the forking check even more */ 2965 if (expect_false (curpid)) /* penalise the forking check even more */
2186 if (expect_false (getpid () != curpid)) 2966 if (expect_false (getpid () != curpid))
… …
2198 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2978 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2199 EV_INVOKE_PENDING; 2979 EV_INVOKE_PENDING;
2200 } 2980 }
2201#endif 2981#endif
2202 2982
2983#if EV_PREPARE_ENABLE
2203 /* queue prepare watchers (and execute them) */ 2984 /* queue prepare watchers (and execute them) */
2204 if (expect_false (preparecnt)) 2985 if (expect_false (preparecnt))
2205 { 2986 {
2206 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2987 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2207 EV_INVOKE_PENDING; 2988 EV_INVOKE_PENDING;
2208 } 2989 }
2990#endif
2209 2991
2210 if (expect_false (loop_done)) 2992 if (expect_false (loop_done))
2211 break; 2993 break;
2212 2994
2213 /* we might have forked, so reify kernel state if necessary */ 2995 /* we might have forked, so reify kernel state if necessary */
… …
2220 /* calculate blocking time */ 3002 /* calculate blocking time */
2221 { 3003 {
2222 ev_tstamp waittime = 0.; 3004 ev_tstamp waittime = 0.;
2223 ev_tstamp sleeptime = 0.; 3005 ev_tstamp sleeptime = 0.;
2224 3006
3007 /* remember old timestamp for io_blocktime calculation */
3008 ev_tstamp prev_mn_now = mn_now;
3009
3010 /* update time to cancel out callback processing overhead */
3011 time_update (EV_A_ 1e100);
3012
3013 /* from now on, we want a pipe-wake-up */
3014 pipe_write_wanted = 1;
3015
3016 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3017
2225 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3018 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2226 { 3019 {
2227 /* remember old timestamp for io_blocktime calculation */
2228 ev_tstamp prev_mn_now = mn_now;
2229
2230 /* update time to cancel out callback processing overhead */
2231 time_update (EV_A_ 1e100);
2232
2233 waittime = MAX_BLOCKTIME; 3020 waittime = MAX_BLOCKTIME;
2234 3021
2235 if (timercnt) 3022 if (timercnt)
2236 { 3023 {
2237 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3024 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2238 if (waittime > to) waittime = to; 3025 if (waittime > to) waittime = to;
2239 } 3026 }
2240 3027
2241#if EV_PERIODIC_ENABLE 3028#if EV_PERIODIC_ENABLE
2242 if (periodiccnt) 3029 if (periodiccnt)
2243 { 3030 {
2244 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3031 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2245 if (waittime > to) waittime = to; 3032 if (waittime > to) waittime = to;
2246 } 3033 }
2247#endif 3034#endif
2248 3035
2249 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3036 /* don't let timeouts decrease the waittime below timeout_blocktime */
2250 if (expect_false (waittime < timeout_blocktime)) 3037 if (expect_false (waittime < timeout_blocktime))
2251 waittime = timeout_blocktime; 3038 waittime = timeout_blocktime;
3039
3040 /* at this point, we NEED to wait, so we have to ensure */
3041 /* to pass a minimum nonzero value to the backend */
3042 if (expect_false (waittime < backend_mintime))
3043 waittime = backend_mintime;
2252 3044
2253 /* extra check because io_blocktime is commonly 0 */ 3045 /* extra check because io_blocktime is commonly 0 */
2254 if (expect_false (io_blocktime)) 3046 if (expect_false (io_blocktime))
2255 { 3047 {
2256 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3048 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2257 3049
2258 if (sleeptime > waittime - backend_fudge) 3050 if (sleeptime > waittime - backend_mintime)
2259 sleeptime = waittime - backend_fudge; 3051 sleeptime = waittime - backend_mintime;
2260 3052
2261 if (expect_true (sleeptime > 0.)) 3053 if (expect_true (sleeptime > 0.))
2262 { 3054 {
2263 ev_sleep (sleeptime); 3055 ev_sleep (sleeptime);
2264 waittime -= sleeptime; 3056 waittime -= sleeptime;
2265 } 3057 }
2266 } 3058 }
2267 } 3059 }
2268 3060
2269#if EV_MINIMAL < 2 3061#if EV_FEATURE_API
2270 ++loop_count; 3062 ++loop_count;
2271#endif 3063#endif
2272 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3064 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2273 backend_poll (EV_A_ waittime); 3065 backend_poll (EV_A_ waittime);
2274 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3066 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3067
3068 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3069
3070 if (pipe_write_skipped)
3071 {
3072 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3073 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3074 }
3075
2275 3076
2276 /* update ev_rt_now, do magic */ 3077 /* update ev_rt_now, do magic */
2277 time_update (EV_A_ waittime + sleeptime); 3078 time_update (EV_A_ waittime + sleeptime);
2278 } 3079 }
2279 3080
… …
2286#if EV_IDLE_ENABLE 3087#if EV_IDLE_ENABLE
2287 /* queue idle watchers unless other events are pending */ 3088 /* queue idle watchers unless other events are pending */
2288 idle_reify (EV_A); 3089 idle_reify (EV_A);
2289#endif 3090#endif
2290 3091
3092#if EV_CHECK_ENABLE
2291 /* queue check watchers, to be executed first */ 3093 /* queue check watchers, to be executed first */
2292 if (expect_false (checkcnt)) 3094 if (expect_false (checkcnt))
2293 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3095 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3096#endif
2294 3097
2295 EV_INVOKE_PENDING; 3098 EV_INVOKE_PENDING;
2296 } 3099 }
2297 while (expect_true ( 3100 while (expect_true (
2298 activecnt 3101 activecnt
2299 && !loop_done 3102 && !loop_done
2300 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3103 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2301 )); 3104 ));
2302 3105
2303 if (loop_done == EVUNLOOP_ONE) 3106 if (loop_done == EVBREAK_ONE)
2304 loop_done = EVUNLOOP_CANCEL; 3107 loop_done = EVBREAK_CANCEL;
2305 3108
2306#if EV_MINIMAL < 2 3109#if EV_FEATURE_API
2307 --loop_depth; 3110 --loop_depth;
2308#endif 3111#endif
3112
3113 return activecnt;
2309} 3114}
2310 3115
2311void 3116void
2312ev_unloop (EV_P_ int how) 3117ev_break (EV_P_ int how) EV_THROW
2313{ 3118{
2314 loop_done = how; 3119 loop_done = how;
2315} 3120}
2316 3121
2317void 3122void
2318ev_ref (EV_P) 3123ev_ref (EV_P) EV_THROW
2319{ 3124{
2320 ++activecnt; 3125 ++activecnt;
2321} 3126}
2322 3127
2323void 3128void
2324ev_unref (EV_P) 3129ev_unref (EV_P) EV_THROW
2325{ 3130{
2326 --activecnt; 3131 --activecnt;
2327} 3132}
2328 3133
2329void 3134void
2330ev_now_update (EV_P) 3135ev_now_update (EV_P) EV_THROW
2331{ 3136{
2332 time_update (EV_A_ 1e100); 3137 time_update (EV_A_ 1e100);
2333} 3138}
2334 3139
2335void 3140void
2336ev_suspend (EV_P) 3141ev_suspend (EV_P) EV_THROW
2337{ 3142{
2338 ev_now_update (EV_A); 3143 ev_now_update (EV_A);
2339} 3144}
2340 3145
2341void 3146void
2342ev_resume (EV_P) 3147ev_resume (EV_P) EV_THROW
2343{ 3148{
2344 ev_tstamp mn_prev = mn_now; 3149 ev_tstamp mn_prev = mn_now;
2345 3150
2346 ev_now_update (EV_A); 3151 ev_now_update (EV_A);
2347 timers_reschedule (EV_A_ mn_now - mn_prev); 3152 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2364inline_size void 3169inline_size void
2365wlist_del (WL *head, WL elem) 3170wlist_del (WL *head, WL elem)
2366{ 3171{
2367 while (*head) 3172 while (*head)
2368 { 3173 {
2369 if (*head == elem) 3174 if (expect_true (*head == elem))
2370 { 3175 {
2371 *head = elem->next; 3176 *head = elem->next;
2372 return; 3177 break;
2373 } 3178 }
2374 3179
2375 head = &(*head)->next; 3180 head = &(*head)->next;
2376 } 3181 }
2377} 3182}
… …
2386 w->pending = 0; 3191 w->pending = 0;
2387 } 3192 }
2388} 3193}
2389 3194
2390int 3195int
2391ev_clear_pending (EV_P_ void *w) 3196ev_clear_pending (EV_P_ void *w) EV_THROW
2392{ 3197{
2393 W w_ = (W)w; 3198 W w_ = (W)w;
2394 int pending = w_->pending; 3199 int pending = w_->pending;
2395 3200
2396 if (expect_true (pending)) 3201 if (expect_true (pending))
… …
2429} 3234}
2430 3235
2431/*****************************************************************************/ 3236/*****************************************************************************/
2432 3237
2433void noinline 3238void noinline
2434ev_io_start (EV_P_ ev_io *w) 3239ev_io_start (EV_P_ ev_io *w) EV_THROW
2435{ 3240{
2436 int fd = w->fd; 3241 int fd = w->fd;
2437 3242
2438 if (expect_false (ev_is_active (w))) 3243 if (expect_false (ev_is_active (w)))
2439 return; 3244 return;
2440 3245
2441 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3246 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2442 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3247 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2443 3248
2444 EV_FREQUENT_CHECK; 3249 EV_FREQUENT_CHECK;
2445 3250
2446 ev_start (EV_A_ (W)w, 1); 3251 ev_start (EV_A_ (W)w, 1);
2447 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3252 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2452 3257
2453 EV_FREQUENT_CHECK; 3258 EV_FREQUENT_CHECK;
2454} 3259}
2455 3260
2456void noinline 3261void noinline
2457ev_io_stop (EV_P_ ev_io *w) 3262ev_io_stop (EV_P_ ev_io *w) EV_THROW
2458{ 3263{
2459 clear_pending (EV_A_ (W)w); 3264 clear_pending (EV_A_ (W)w);
2460 if (expect_false (!ev_is_active (w))) 3265 if (expect_false (!ev_is_active (w)))
2461 return; 3266 return;
2462 3267
… …
2465 EV_FREQUENT_CHECK; 3270 EV_FREQUENT_CHECK;
2466 3271
2467 wlist_del (&anfds[w->fd].head, (WL)w); 3272 wlist_del (&anfds[w->fd].head, (WL)w);
2468 ev_stop (EV_A_ (W)w); 3273 ev_stop (EV_A_ (W)w);
2469 3274
2470 fd_change (EV_A_ w->fd, 1); 3275 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2471 3276
2472 EV_FREQUENT_CHECK; 3277 EV_FREQUENT_CHECK;
2473} 3278}
2474 3279
2475void noinline 3280void noinline
2476ev_timer_start (EV_P_ ev_timer *w) 3281ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2477{ 3282{
2478 if (expect_false (ev_is_active (w))) 3283 if (expect_false (ev_is_active (w)))
2479 return; 3284 return;
2480 3285
2481 ev_at (w) += mn_now; 3286 ev_at (w) += mn_now;
… …
2495 3300
2496 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3301 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2497} 3302}
2498 3303
2499void noinline 3304void noinline
2500ev_timer_stop (EV_P_ ev_timer *w) 3305ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2501{ 3306{
2502 clear_pending (EV_A_ (W)w); 3307 clear_pending (EV_A_ (W)w);
2503 if (expect_false (!ev_is_active (w))) 3308 if (expect_false (!ev_is_active (w)))
2504 return; 3309 return;
2505 3310
… …
2517 timers [active] = timers [timercnt + HEAP0]; 3322 timers [active] = timers [timercnt + HEAP0];
2518 adjustheap (timers, timercnt, active); 3323 adjustheap (timers, timercnt, active);
2519 } 3324 }
2520 } 3325 }
2521 3326
2522 EV_FREQUENT_CHECK;
2523
2524 ev_at (w) -= mn_now; 3327 ev_at (w) -= mn_now;
2525 3328
2526 ev_stop (EV_A_ (W)w); 3329 ev_stop (EV_A_ (W)w);
3330
3331 EV_FREQUENT_CHECK;
2527} 3332}
2528 3333
2529void noinline 3334void noinline
2530ev_timer_again (EV_P_ ev_timer *w) 3335ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2531{ 3336{
2532 EV_FREQUENT_CHECK; 3337 EV_FREQUENT_CHECK;
3338
3339 clear_pending (EV_A_ (W)w);
2533 3340
2534 if (ev_is_active (w)) 3341 if (ev_is_active (w))
2535 { 3342 {
2536 if (w->repeat) 3343 if (w->repeat)
2537 { 3344 {
… …
2550 3357
2551 EV_FREQUENT_CHECK; 3358 EV_FREQUENT_CHECK;
2552} 3359}
2553 3360
2554ev_tstamp 3361ev_tstamp
2555ev_timer_remaining (EV_P_ ev_timer *w) 3362ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2556{ 3363{
2557 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3364 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2558} 3365}
2559 3366
2560#if EV_PERIODIC_ENABLE 3367#if EV_PERIODIC_ENABLE
2561void noinline 3368void noinline
2562ev_periodic_start (EV_P_ ev_periodic *w) 3369ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2563{ 3370{
2564 if (expect_false (ev_is_active (w))) 3371 if (expect_false (ev_is_active (w)))
2565 return; 3372 return;
2566 3373
2567 if (w->reschedule_cb) 3374 if (w->reschedule_cb)
2568 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3375 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2569 else if (w->interval) 3376 else if (w->interval)
2570 { 3377 {
2571 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3378 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2572 /* this formula differs from the one in periodic_reify because we do not always round up */ 3379 periodic_recalc (EV_A_ w);
2573 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2574 } 3380 }
2575 else 3381 else
2576 ev_at (w) = w->offset; 3382 ev_at (w) = w->offset;
2577 3383
2578 EV_FREQUENT_CHECK; 3384 EV_FREQUENT_CHECK;
… …
2588 3394
2589 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3395 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2590} 3396}
2591 3397
2592void noinline 3398void noinline
2593ev_periodic_stop (EV_P_ ev_periodic *w) 3399ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2594{ 3400{
2595 clear_pending (EV_A_ (W)w); 3401 clear_pending (EV_A_ (W)w);
2596 if (expect_false (!ev_is_active (w))) 3402 if (expect_false (!ev_is_active (w)))
2597 return; 3403 return;
2598 3404
… …
2610 periodics [active] = periodics [periodiccnt + HEAP0]; 3416 periodics [active] = periodics [periodiccnt + HEAP0];
2611 adjustheap (periodics, periodiccnt, active); 3417 adjustheap (periodics, periodiccnt, active);
2612 } 3418 }
2613 } 3419 }
2614 3420
2615 EV_FREQUENT_CHECK;
2616
2617 ev_stop (EV_A_ (W)w); 3421 ev_stop (EV_A_ (W)w);
3422
3423 EV_FREQUENT_CHECK;
2618} 3424}
2619 3425
2620void noinline 3426void noinline
2621ev_periodic_again (EV_P_ ev_periodic *w) 3427ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2622{ 3428{
2623 /* TODO: use adjustheap and recalculation */ 3429 /* TODO: use adjustheap and recalculation */
2624 ev_periodic_stop (EV_A_ w); 3430 ev_periodic_stop (EV_A_ w);
2625 ev_periodic_start (EV_A_ w); 3431 ev_periodic_start (EV_A_ w);
2626} 3432}
… …
2628 3434
2629#ifndef SA_RESTART 3435#ifndef SA_RESTART
2630# define SA_RESTART 0 3436# define SA_RESTART 0
2631#endif 3437#endif
2632 3438
3439#if EV_SIGNAL_ENABLE
3440
2633void noinline 3441void noinline
2634ev_signal_start (EV_P_ ev_signal *w) 3442ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2635{ 3443{
2636#if EV_MULTIPLICITY
2637 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2638#endif
2639 if (expect_false (ev_is_active (w))) 3444 if (expect_false (ev_is_active (w)))
2640 return; 3445 return;
2641 3446
2642 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3447 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3448
3449#if EV_MULTIPLICITY
3450 assert (("libev: a signal must not be attached to two different loops",
3451 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3452
3453 signals [w->signum - 1].loop = EV_A;
3454#endif
2643 3455
2644 EV_FREQUENT_CHECK; 3456 EV_FREQUENT_CHECK;
2645 3457
2646#if EV_USE_SIGNALFD 3458#if EV_USE_SIGNALFD
2647 if (sigfd == -2) 3459 if (sigfd == -2)
… …
2669 sigaddset (&sigfd_set, w->signum); 3481 sigaddset (&sigfd_set, w->signum);
2670 sigprocmask (SIG_BLOCK, &sigfd_set, 0); 3482 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2671 3483
2672 signalfd (sigfd, &sigfd_set, 0); 3484 signalfd (sigfd, &sigfd_set, 0);
2673 } 3485 }
2674 else
2675#endif
2676 evpipe_init (EV_A);
2677
2678 {
2679#ifndef _WIN32
2680 sigset_t full, prev;
2681 sigfillset (&full);
2682 sigprocmask (SIG_SETMASK, &full, &prev);
2683#endif
2684
2685 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2686
2687#ifndef _WIN32
2688# if EV_USE_SIGNALFD
2689 if (sigfd < 0)/*TODO*/
2690# endif 3486#endif
2691 sigdelset (&prev, w->signum);
2692 sigprocmask (SIG_SETMASK, &prev, 0);
2693#endif
2694 }
2695 3487
2696 ev_start (EV_A_ (W)w, 1); 3488 ev_start (EV_A_ (W)w, 1);
2697 wlist_add (&signals [w->signum - 1].head, (WL)w); 3489 wlist_add (&signals [w->signum - 1].head, (WL)w);
2698 3490
2699 if (!((WL)w)->next) 3491 if (!((WL)w)->next)
2700 {
2701#if _WIN32
2702 signal (w->signum, ev_sighandler);
2703#else
2704# if EV_USE_SIGNALFD 3492# if EV_USE_SIGNALFD
2705 if (sigfd < 0) /*TODO*/ 3493 if (sigfd < 0) /*TODO*/
2706# endif 3494# endif
2707 { 3495 {
3496# ifdef _WIN32
3497 evpipe_init (EV_A);
3498
3499 signal (w->signum, ev_sighandler);
3500# else
2708 struct sigaction sa = { }; 3501 struct sigaction sa;
3502
3503 evpipe_init (EV_A);
3504
2709 sa.sa_handler = ev_sighandler; 3505 sa.sa_handler = ev_sighandler;
2710 sigfillset (&sa.sa_mask); 3506 sigfillset (&sa.sa_mask);
2711 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3507 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2712 sigaction (w->signum, &sa, 0); 3508 sigaction (w->signum, &sa, 0);
3509
3510 if (origflags & EVFLAG_NOSIGMASK)
3511 {
3512 sigemptyset (&sa.sa_mask);
3513 sigaddset (&sa.sa_mask, w->signum);
3514 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2713 } 3515 }
2714#endif 3516#endif
2715 } 3517 }
2716 3518
2717 EV_FREQUENT_CHECK; 3519 EV_FREQUENT_CHECK;
2718} 3520}
2719 3521
2720void noinline 3522void noinline
2721ev_signal_stop (EV_P_ ev_signal *w) 3523ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2722{ 3524{
2723 clear_pending (EV_A_ (W)w); 3525 clear_pending (EV_A_ (W)w);
2724 if (expect_false (!ev_is_active (w))) 3526 if (expect_false (!ev_is_active (w)))
2725 return; 3527 return;
2726 3528
… …
2728 3530
2729 wlist_del (&signals [w->signum - 1].head, (WL)w); 3531 wlist_del (&signals [w->signum - 1].head, (WL)w);
2730 ev_stop (EV_A_ (W)w); 3532 ev_stop (EV_A_ (W)w);
2731 3533
2732 if (!signals [w->signum - 1].head) 3534 if (!signals [w->signum - 1].head)
3535 {
3536#if EV_MULTIPLICITY
3537 signals [w->signum - 1].loop = 0; /* unattach from signal */
3538#endif
2733#if EV_USE_SIGNALFD 3539#if EV_USE_SIGNALFD
2734 if (sigfd >= 0) 3540 if (sigfd >= 0)
2735 { 3541 {
2736 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3542 sigset_t ss;
3543
3544 sigemptyset (&ss);
3545 sigaddset (&ss, w->signum);
2737 sigdelset (&sigfd_set, w->signum); 3546 sigdelset (&sigfd_set, w->signum);
3547
2738 signalfd (sigfd, &sigfd_set, 0); 3548 signalfd (sigfd, &sigfd_set, 0);
2739 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3549 sigprocmask (SIG_UNBLOCK, &ss, 0);
2740 /*TODO: maybe unblock signal? */
2741 } 3550 }
2742 else 3551 else
2743#endif 3552#endif
2744 signal (w->signum, SIG_DFL); 3553 signal (w->signum, SIG_DFL);
3554 }
2745 3555
2746 EV_FREQUENT_CHECK; 3556 EV_FREQUENT_CHECK;
2747} 3557}
3558
3559#endif
3560
3561#if EV_CHILD_ENABLE
2748 3562
2749void 3563void
2750ev_child_start (EV_P_ ev_child *w) 3564ev_child_start (EV_P_ ev_child *w) EV_THROW
2751{ 3565{
2752#if EV_MULTIPLICITY 3566#if EV_MULTIPLICITY
2753 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3567 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2754#endif 3568#endif
2755 if (expect_false (ev_is_active (w))) 3569 if (expect_false (ev_is_active (w)))
2756 return; 3570 return;
2757 3571
2758 EV_FREQUENT_CHECK; 3572 EV_FREQUENT_CHECK;
2759 3573
2760 ev_start (EV_A_ (W)w, 1); 3574 ev_start (EV_A_ (W)w, 1);
2761 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3575 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2762 3576
2763 EV_FREQUENT_CHECK; 3577 EV_FREQUENT_CHECK;
2764} 3578}
2765 3579
2766void 3580void
2767ev_child_stop (EV_P_ ev_child *w) 3581ev_child_stop (EV_P_ ev_child *w) EV_THROW
2768{ 3582{
2769 clear_pending (EV_A_ (W)w); 3583 clear_pending (EV_A_ (W)w);
2770 if (expect_false (!ev_is_active (w))) 3584 if (expect_false (!ev_is_active (w)))
2771 return; 3585 return;
2772 3586
2773 EV_FREQUENT_CHECK; 3587 EV_FREQUENT_CHECK;
2774 3588
2775 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3589 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2776 ev_stop (EV_A_ (W)w); 3590 ev_stop (EV_A_ (W)w);
2777 3591
2778 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
2779} 3593}
3594
3595#endif
2780 3596
2781#if EV_STAT_ENABLE 3597#if EV_STAT_ENABLE
2782 3598
2783# ifdef _WIN32 3599# ifdef _WIN32
2784# undef lstat 3600# undef lstat
… …
2790#define MIN_STAT_INTERVAL 0.1074891 3606#define MIN_STAT_INTERVAL 0.1074891
2791 3607
2792static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3608static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2793 3609
2794#if EV_USE_INOTIFY 3610#if EV_USE_INOTIFY
2795# define EV_INOTIFY_BUFSIZE 8192 3611
3612/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3613# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2796 3614
2797static void noinline 3615static void noinline
2798infy_add (EV_P_ ev_stat *w) 3616infy_add (EV_P_ ev_stat *w)
2799{ 3617{
2800 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3618 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2801 3619
2802 if (w->wd < 0) 3620 if (w->wd >= 0)
3621 {
3622 struct statfs sfs;
3623
3624 /* now local changes will be tracked by inotify, but remote changes won't */
3625 /* unless the filesystem is known to be local, we therefore still poll */
3626 /* also do poll on <2.6.25, but with normal frequency */
3627
3628 if (!fs_2625)
3629 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3630 else if (!statfs (w->path, &sfs)
3631 && (sfs.f_type == 0x1373 /* devfs */
3632 || sfs.f_type == 0xEF53 /* ext2/3 */
3633 || sfs.f_type == 0x3153464a /* jfs */
3634 || sfs.f_type == 0x52654973 /* reiser3 */
3635 || sfs.f_type == 0x01021994 /* tempfs */
3636 || sfs.f_type == 0x58465342 /* xfs */))
3637 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3638 else
3639 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2803 { 3640 }
3641 else
3642 {
3643 /* can't use inotify, continue to stat */
2804 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3644 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2805 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2806 3645
2807 /* monitor some parent directory for speedup hints */ 3646 /* if path is not there, monitor some parent directory for speedup hints */
2808 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3647 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2809 /* but an efficiency issue only */ 3648 /* but an efficiency issue only */
2810 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3649 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2811 { 3650 {
2812 char path [4096]; 3651 char path [4096];
… …
2822 if (!pend || pend == path) 3661 if (!pend || pend == path)
2823 break; 3662 break;
2824 3663
2825 *pend = 0; 3664 *pend = 0;
2826 w->wd = inotify_add_watch (fs_fd, path, mask); 3665 w->wd = inotify_add_watch (fs_fd, path, mask);
2827 } 3666 }
2828 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3667 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2829 } 3668 }
2830 } 3669 }
2831 3670
2832 if (w->wd >= 0) 3671 if (w->wd >= 0)
2833 {
2834 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3672 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2835 3673
2836 /* now local changes will be tracked by inotify, but remote changes won't */ 3674 /* now re-arm timer, if required */
2837 /* unless the filesystem it known to be local, we therefore still poll */ 3675 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2838 /* also do poll on <2.6.25, but with normal frequency */
2839 struct statfs sfs;
2840
2841 if (fs_2625 && !statfs (w->path, &sfs))
2842 if (sfs.f_type == 0x1373 /* devfs */
2843 || sfs.f_type == 0xEF53 /* ext2/3 */
2844 || sfs.f_type == 0x3153464a /* jfs */
2845 || sfs.f_type == 0x52654973 /* reiser3 */
2846 || sfs.f_type == 0x01021994 /* tempfs */
2847 || sfs.f_type == 0x58465342 /* xfs */)
2848 return;
2849
2850 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2851 ev_timer_again (EV_A_ &w->timer); 3676 ev_timer_again (EV_A_ &w->timer);
2852 } 3677 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2853} 3678}
2854 3679
2855static void noinline 3680static void noinline
2856infy_del (EV_P_ ev_stat *w) 3681infy_del (EV_P_ ev_stat *w)
2857{ 3682{
… …
2860 3685
2861 if (wd < 0) 3686 if (wd < 0)
2862 return; 3687 return;
2863 3688
2864 w->wd = -2; 3689 w->wd = -2;
2865 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3690 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2866 wlist_del (&fs_hash [slot].head, (WL)w); 3691 wlist_del (&fs_hash [slot].head, (WL)w);
2867 3692
2868 /* remove this watcher, if others are watching it, they will rearm */ 3693 /* remove this watcher, if others are watching it, they will rearm */
2869 inotify_rm_watch (fs_fd, wd); 3694 inotify_rm_watch (fs_fd, wd);
2870} 3695}
… …
2872static void noinline 3697static void noinline
2873infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3698infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2874{ 3699{
2875 if (slot < 0) 3700 if (slot < 0)
2876 /* overflow, need to check for all hash slots */ 3701 /* overflow, need to check for all hash slots */
2877 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3702 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2878 infy_wd (EV_A_ slot, wd, ev); 3703 infy_wd (EV_A_ slot, wd, ev);
2879 else 3704 else
2880 { 3705 {
2881 WL w_; 3706 WL w_;
2882 3707
2883 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3708 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2884 { 3709 {
2885 ev_stat *w = (ev_stat *)w_; 3710 ev_stat *w = (ev_stat *)w_;
2886 w_ = w_->next; /* lets us remove this watcher and all before it */ 3711 w_ = w_->next; /* lets us remove this watcher and all before it */
2887 3712
2888 if (w->wd == wd || wd == -1) 3713 if (w->wd == wd || wd == -1)
2889 { 3714 {
2890 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3715 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2891 { 3716 {
2892 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3717 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2893 w->wd = -1; 3718 w->wd = -1;
2894 infy_add (EV_A_ w); /* re-add, no matter what */ 3719 infy_add (EV_A_ w); /* re-add, no matter what */
2895 } 3720 }
2896 3721
2897 stat_timer_cb (EV_A_ &w->timer, 0); 3722 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2902 3727
2903static void 3728static void
2904infy_cb (EV_P_ ev_io *w, int revents) 3729infy_cb (EV_P_ ev_io *w, int revents)
2905{ 3730{
2906 char buf [EV_INOTIFY_BUFSIZE]; 3731 char buf [EV_INOTIFY_BUFSIZE];
2907 struct inotify_event *ev = (struct inotify_event *)buf;
2908 int ofs; 3732 int ofs;
2909 int len = read (fs_fd, buf, sizeof (buf)); 3733 int len = read (fs_fd, buf, sizeof (buf));
2910 3734
2911 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3735 for (ofs = 0; ofs < len; )
3736 {
3737 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2912 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3738 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3739 ofs += sizeof (struct inotify_event) + ev->len;
3740 }
2913} 3741}
2914 3742
2915inline_size void 3743inline_size void ecb_cold
2916check_2625 (EV_P) 3744ev_check_2625 (EV_P)
2917{ 3745{
2918 /* kernels < 2.6.25 are borked 3746 /* kernels < 2.6.25 are borked
2919 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3747 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2920 */ 3748 */
2921 struct utsname buf; 3749 if (ev_linux_version () < 0x020619)
2922 int major, minor, micro;
2923
2924 if (uname (&buf))
2925 return; 3750 return;
2926 3751
2927 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2928 return;
2929
2930 if (major < 2
2931 || (major == 2 && minor < 6)
2932 || (major == 2 && minor == 6 && micro < 25))
2933 return;
2934
2935 fs_2625 = 1; 3752 fs_2625 = 1;
3753}
3754
3755inline_size int
3756infy_newfd (void)
3757{
3758#if defined IN_CLOEXEC && defined IN_NONBLOCK
3759 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3760 if (fd >= 0)
3761 return fd;
3762#endif
3763 return inotify_init ();
2936} 3764}
2937 3765
2938inline_size void 3766inline_size void
2939infy_init (EV_P) 3767infy_init (EV_P)
2940{ 3768{
2941 if (fs_fd != -2) 3769 if (fs_fd != -2)
2942 return; 3770 return;
2943 3771
2944 fs_fd = -1; 3772 fs_fd = -1;
2945 3773
2946 check_2625 (EV_A); 3774 ev_check_2625 (EV_A);
2947 3775
2948 fs_fd = inotify_init (); 3776 fs_fd = infy_newfd ();
2949 3777
2950 if (fs_fd >= 0) 3778 if (fs_fd >= 0)
2951 { 3779 {
3780 fd_intern (fs_fd);
2952 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3781 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2953 ev_set_priority (&fs_w, EV_MAXPRI); 3782 ev_set_priority (&fs_w, EV_MAXPRI);
2954 ev_io_start (EV_A_ &fs_w); 3783 ev_io_start (EV_A_ &fs_w);
3784 ev_unref (EV_A);
2955 } 3785 }
2956} 3786}
2957 3787
2958inline_size void 3788inline_size void
2959infy_fork (EV_P) 3789infy_fork (EV_P)
… …
2961 int slot; 3791 int slot;
2962 3792
2963 if (fs_fd < 0) 3793 if (fs_fd < 0)
2964 return; 3794 return;
2965 3795
3796 ev_ref (EV_A);
3797 ev_io_stop (EV_A_ &fs_w);
2966 close (fs_fd); 3798 close (fs_fd);
2967 fs_fd = inotify_init (); 3799 fs_fd = infy_newfd ();
2968 3800
3801 if (fs_fd >= 0)
3802 {
3803 fd_intern (fs_fd);
3804 ev_io_set (&fs_w, fs_fd, EV_READ);
3805 ev_io_start (EV_A_ &fs_w);
3806 ev_unref (EV_A);
3807 }
3808
2969 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3809 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2970 { 3810 {
2971 WL w_ = fs_hash [slot].head; 3811 WL w_ = fs_hash [slot].head;
2972 fs_hash [slot].head = 0; 3812 fs_hash [slot].head = 0;
2973 3813
2974 while (w_) 3814 while (w_)
… …
2979 w->wd = -1; 3819 w->wd = -1;
2980 3820
2981 if (fs_fd >= 0) 3821 if (fs_fd >= 0)
2982 infy_add (EV_A_ w); /* re-add, no matter what */ 3822 infy_add (EV_A_ w); /* re-add, no matter what */
2983 else 3823 else
3824 {
3825 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3826 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2984 ev_timer_again (EV_A_ &w->timer); 3827 ev_timer_again (EV_A_ &w->timer);
3828 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3829 }
2985 } 3830 }
2986 } 3831 }
2987} 3832}
2988 3833
2989#endif 3834#endif
… …
2993#else 3838#else
2994# define EV_LSTAT(p,b) lstat (p, b) 3839# define EV_LSTAT(p,b) lstat (p, b)
2995#endif 3840#endif
2996 3841
2997void 3842void
2998ev_stat_stat (EV_P_ ev_stat *w) 3843ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2999{ 3844{
3000 if (lstat (w->path, &w->attr) < 0) 3845 if (lstat (w->path, &w->attr) < 0)
3001 w->attr.st_nlink = 0; 3846 w->attr.st_nlink = 0;
3002 else if (!w->attr.st_nlink) 3847 else if (!w->attr.st_nlink)
3003 w->attr.st_nlink = 1; 3848 w->attr.st_nlink = 1;
… …
3006static void noinline 3851static void noinline
3007stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3852stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3008{ 3853{
3009 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3854 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3010 3855
3011 /* we copy this here each the time so that */ 3856 ev_statdata prev = w->attr;
3012 /* prev has the old value when the callback gets invoked */
3013 w->prev = w->attr;
3014 ev_stat_stat (EV_A_ w); 3857 ev_stat_stat (EV_A_ w);
3015 3858
3016 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3859 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3017 if ( 3860 if (
3018 w->prev.st_dev != w->attr.st_dev 3861 prev.st_dev != w->attr.st_dev
3019 || w->prev.st_ino != w->attr.st_ino 3862 || prev.st_ino != w->attr.st_ino
3020 || w->prev.st_mode != w->attr.st_mode 3863 || prev.st_mode != w->attr.st_mode
3021 || w->prev.st_nlink != w->attr.st_nlink 3864 || prev.st_nlink != w->attr.st_nlink
3022 || w->prev.st_uid != w->attr.st_uid 3865 || prev.st_uid != w->attr.st_uid
3023 || w->prev.st_gid != w->attr.st_gid 3866 || prev.st_gid != w->attr.st_gid
3024 || w->prev.st_rdev != w->attr.st_rdev 3867 || prev.st_rdev != w->attr.st_rdev
3025 || w->prev.st_size != w->attr.st_size 3868 || prev.st_size != w->attr.st_size
3026 || w->prev.st_atime != w->attr.st_atime 3869 || prev.st_atime != w->attr.st_atime
3027 || w->prev.st_mtime != w->attr.st_mtime 3870 || prev.st_mtime != w->attr.st_mtime
3028 || w->prev.st_ctime != w->attr.st_ctime 3871 || prev.st_ctime != w->attr.st_ctime
3029 ) { 3872 ) {
3873 /* we only update w->prev on actual differences */
3874 /* in case we test more often than invoke the callback, */
3875 /* to ensure that prev is always different to attr */
3876 w->prev = prev;
3877
3030 #if EV_USE_INOTIFY 3878 #if EV_USE_INOTIFY
3031 if (fs_fd >= 0) 3879 if (fs_fd >= 0)
3032 { 3880 {
3033 infy_del (EV_A_ w); 3881 infy_del (EV_A_ w);
3034 infy_add (EV_A_ w); 3882 infy_add (EV_A_ w);
… …
3039 ev_feed_event (EV_A_ w, EV_STAT); 3887 ev_feed_event (EV_A_ w, EV_STAT);
3040 } 3888 }
3041} 3889}
3042 3890
3043void 3891void
3044ev_stat_start (EV_P_ ev_stat *w) 3892ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3045{ 3893{
3046 if (expect_false (ev_is_active (w))) 3894 if (expect_false (ev_is_active (w)))
3047 return; 3895 return;
3048 3896
3049 ev_stat_stat (EV_A_ w); 3897 ev_stat_stat (EV_A_ w);
… …
3059 3907
3060 if (fs_fd >= 0) 3908 if (fs_fd >= 0)
3061 infy_add (EV_A_ w); 3909 infy_add (EV_A_ w);
3062 else 3910 else
3063#endif 3911#endif
3912 {
3064 ev_timer_again (EV_A_ &w->timer); 3913 ev_timer_again (EV_A_ &w->timer);
3914 ev_unref (EV_A);
3915 }
3065 3916
3066 ev_start (EV_A_ (W)w, 1); 3917 ev_start (EV_A_ (W)w, 1);
3067 3918
3068 EV_FREQUENT_CHECK; 3919 EV_FREQUENT_CHECK;
3069} 3920}
3070 3921
3071void 3922void
3072ev_stat_stop (EV_P_ ev_stat *w) 3923ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3073{ 3924{
3074 clear_pending (EV_A_ (W)w); 3925 clear_pending (EV_A_ (W)w);
3075 if (expect_false (!ev_is_active (w))) 3926 if (expect_false (!ev_is_active (w)))
3076 return; 3927 return;
3077 3928
3078 EV_FREQUENT_CHECK; 3929 EV_FREQUENT_CHECK;
3079 3930
3080#if EV_USE_INOTIFY 3931#if EV_USE_INOTIFY
3081 infy_del (EV_A_ w); 3932 infy_del (EV_A_ w);
3082#endif 3933#endif
3934
3935 if (ev_is_active (&w->timer))
3936 {
3937 ev_ref (EV_A);
3083 ev_timer_stop (EV_A_ &w->timer); 3938 ev_timer_stop (EV_A_ &w->timer);
3939 }
3084 3940
3085 ev_stop (EV_A_ (W)w); 3941 ev_stop (EV_A_ (W)w);
3086 3942
3087 EV_FREQUENT_CHECK; 3943 EV_FREQUENT_CHECK;
3088} 3944}
3089#endif 3945#endif
3090 3946
3091#if EV_IDLE_ENABLE 3947#if EV_IDLE_ENABLE
3092void 3948void
3093ev_idle_start (EV_P_ ev_idle *w) 3949ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3094{ 3950{
3095 if (expect_false (ev_is_active (w))) 3951 if (expect_false (ev_is_active (w)))
3096 return; 3952 return;
3097 3953
3098 pri_adjust (EV_A_ (W)w); 3954 pri_adjust (EV_A_ (W)w);
… …
3111 3967
3112 EV_FREQUENT_CHECK; 3968 EV_FREQUENT_CHECK;
3113} 3969}
3114 3970
3115void 3971void
3116ev_idle_stop (EV_P_ ev_idle *w) 3972ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3117{ 3973{
3118 clear_pending (EV_A_ (W)w); 3974 clear_pending (EV_A_ (W)w);
3119 if (expect_false (!ev_is_active (w))) 3975 if (expect_false (!ev_is_active (w)))
3120 return; 3976 return;
3121 3977
… …
3133 3989
3134 EV_FREQUENT_CHECK; 3990 EV_FREQUENT_CHECK;
3135} 3991}
3136#endif 3992#endif
3137 3993
3994#if EV_PREPARE_ENABLE
3138void 3995void
3139ev_prepare_start (EV_P_ ev_prepare *w) 3996ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3140{ 3997{
3141 if (expect_false (ev_is_active (w))) 3998 if (expect_false (ev_is_active (w)))
3142 return; 3999 return;
3143 4000
3144 EV_FREQUENT_CHECK; 4001 EV_FREQUENT_CHECK;
… …
3149 4006
3150 EV_FREQUENT_CHECK; 4007 EV_FREQUENT_CHECK;
3151} 4008}
3152 4009
3153void 4010void
3154ev_prepare_stop (EV_P_ ev_prepare *w) 4011ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3155{ 4012{
3156 clear_pending (EV_A_ (W)w); 4013 clear_pending (EV_A_ (W)w);
3157 if (expect_false (!ev_is_active (w))) 4014 if (expect_false (!ev_is_active (w)))
3158 return; 4015 return;
3159 4016
… …
3168 4025
3169 ev_stop (EV_A_ (W)w); 4026 ev_stop (EV_A_ (W)w);
3170 4027
3171 EV_FREQUENT_CHECK; 4028 EV_FREQUENT_CHECK;
3172} 4029}
4030#endif
3173 4031
4032#if EV_CHECK_ENABLE
3174void 4033void
3175ev_check_start (EV_P_ ev_check *w) 4034ev_check_start (EV_P_ ev_check *w) EV_THROW
3176{ 4035{
3177 if (expect_false (ev_is_active (w))) 4036 if (expect_false (ev_is_active (w)))
3178 return; 4037 return;
3179 4038
3180 EV_FREQUENT_CHECK; 4039 EV_FREQUENT_CHECK;
… …
3185 4044
3186 EV_FREQUENT_CHECK; 4045 EV_FREQUENT_CHECK;
3187} 4046}
3188 4047
3189void 4048void
3190ev_check_stop (EV_P_ ev_check *w) 4049ev_check_stop (EV_P_ ev_check *w) EV_THROW
3191{ 4050{
3192 clear_pending (EV_A_ (W)w); 4051 clear_pending (EV_A_ (W)w);
3193 if (expect_false (!ev_is_active (w))) 4052 if (expect_false (!ev_is_active (w)))
3194 return; 4053 return;
3195 4054
… …
3204 4063
3205 ev_stop (EV_A_ (W)w); 4064 ev_stop (EV_A_ (W)w);
3206 4065
3207 EV_FREQUENT_CHECK; 4066 EV_FREQUENT_CHECK;
3208} 4067}
4068#endif
3209 4069
3210#if EV_EMBED_ENABLE 4070#if EV_EMBED_ENABLE
3211void noinline 4071void noinline
3212ev_embed_sweep (EV_P_ ev_embed *w) 4072ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3213{ 4073{
3214 ev_loop (w->other, EVLOOP_NONBLOCK); 4074 ev_run (w->other, EVRUN_NOWAIT);
3215} 4075}
3216 4076
3217static void 4077static void
3218embed_io_cb (EV_P_ ev_io *io, int revents) 4078embed_io_cb (EV_P_ ev_io *io, int revents)
3219{ 4079{
3220 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4080 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3221 4081
3222 if (ev_cb (w)) 4082 if (ev_cb (w))
3223 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4083 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3224 else 4084 else
3225 ev_loop (w->other, EVLOOP_NONBLOCK); 4085 ev_run (w->other, EVRUN_NOWAIT);
3226} 4086}
3227 4087
3228static void 4088static void
3229embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4089embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3230{ 4090{
3231 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4091 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3232 4092
3233 { 4093 {
3234 struct ev_loop *loop = w->other; 4094 EV_P = w->other;
3235 4095
3236 while (fdchangecnt) 4096 while (fdchangecnt)
3237 { 4097 {
3238 fd_reify (EV_A); 4098 fd_reify (EV_A);
3239 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4099 ev_run (EV_A_ EVRUN_NOWAIT);
3240 } 4100 }
3241 } 4101 }
3242} 4102}
3243 4103
3244static void 4104static void
… …
3247 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4107 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3248 4108
3249 ev_embed_stop (EV_A_ w); 4109 ev_embed_stop (EV_A_ w);
3250 4110
3251 { 4111 {
3252 struct ev_loop *loop = w->other; 4112 EV_P = w->other;
3253 4113
3254 ev_loop_fork (EV_A); 4114 ev_loop_fork (EV_A);
3255 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4115 ev_run (EV_A_ EVRUN_NOWAIT);
3256 } 4116 }
3257 4117
3258 ev_embed_start (EV_A_ w); 4118 ev_embed_start (EV_A_ w);
3259} 4119}
3260 4120
… …
3265 ev_idle_stop (EV_A_ idle); 4125 ev_idle_stop (EV_A_ idle);
3266} 4126}
3267#endif 4127#endif
3268 4128
3269void 4129void
3270ev_embed_start (EV_P_ ev_embed *w) 4130ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3271{ 4131{
3272 if (expect_false (ev_is_active (w))) 4132 if (expect_false (ev_is_active (w)))
3273 return; 4133 return;
3274 4134
3275 { 4135 {
3276 struct ev_loop *loop = w->other; 4136 EV_P = w->other;
3277 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4137 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3278 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4138 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3279 } 4139 }
3280 4140
3281 EV_FREQUENT_CHECK; 4141 EV_FREQUENT_CHECK;
… …
3296 4156
3297 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3298} 4158}
3299 4159
3300void 4160void
3301ev_embed_stop (EV_P_ ev_embed *w) 4161ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3302{ 4162{
3303 clear_pending (EV_A_ (W)w); 4163 clear_pending (EV_A_ (W)w);
3304 if (expect_false (!ev_is_active (w))) 4164 if (expect_false (!ev_is_active (w)))
3305 return; 4165 return;
3306 4166
… …
3308 4168
3309 ev_io_stop (EV_A_ &w->io); 4169 ev_io_stop (EV_A_ &w->io);
3310 ev_prepare_stop (EV_A_ &w->prepare); 4170 ev_prepare_stop (EV_A_ &w->prepare);
3311 ev_fork_stop (EV_A_ &w->fork); 4171 ev_fork_stop (EV_A_ &w->fork);
3312 4172
4173 ev_stop (EV_A_ (W)w);
4174
3313 EV_FREQUENT_CHECK; 4175 EV_FREQUENT_CHECK;
3314} 4176}
3315#endif 4177#endif
3316 4178
3317#if EV_FORK_ENABLE 4179#if EV_FORK_ENABLE
3318void 4180void
3319ev_fork_start (EV_P_ ev_fork *w) 4181ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3320{ 4182{
3321 if (expect_false (ev_is_active (w))) 4183 if (expect_false (ev_is_active (w)))
3322 return; 4184 return;
3323 4185
3324 EV_FREQUENT_CHECK; 4186 EV_FREQUENT_CHECK;
… …
3329 4191
3330 EV_FREQUENT_CHECK; 4192 EV_FREQUENT_CHECK;
3331} 4193}
3332 4194
3333void 4195void
3334ev_fork_stop (EV_P_ ev_fork *w) 4196ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3335{ 4197{
3336 clear_pending (EV_A_ (W)w); 4198 clear_pending (EV_A_ (W)w);
3337 if (expect_false (!ev_is_active (w))) 4199 if (expect_false (!ev_is_active (w)))
3338 return; 4200 return;
3339 4201
… …
3350 4212
3351 EV_FREQUENT_CHECK; 4213 EV_FREQUENT_CHECK;
3352} 4214}
3353#endif 4215#endif
3354 4216
4217#if EV_CLEANUP_ENABLE
4218void
4219ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4220{
4221 if (expect_false (ev_is_active (w)))
4222 return;
4223
4224 EV_FREQUENT_CHECK;
4225
4226 ev_start (EV_A_ (W)w, ++cleanupcnt);
4227 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4228 cleanups [cleanupcnt - 1] = w;
4229
4230 /* cleanup watchers should never keep a refcount on the loop */
4231 ev_unref (EV_A);
4232 EV_FREQUENT_CHECK;
4233}
4234
4235void
4236ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4237{
4238 clear_pending (EV_A_ (W)w);
4239 if (expect_false (!ev_is_active (w)))
4240 return;
4241
4242 EV_FREQUENT_CHECK;
4243 ev_ref (EV_A);
4244
4245 {
4246 int active = ev_active (w);
4247
4248 cleanups [active - 1] = cleanups [--cleanupcnt];
4249 ev_active (cleanups [active - 1]) = active;
4250 }
4251
4252 ev_stop (EV_A_ (W)w);
4253
4254 EV_FREQUENT_CHECK;
4255}
4256#endif
4257
3355#if EV_ASYNC_ENABLE 4258#if EV_ASYNC_ENABLE
3356void 4259void
3357ev_async_start (EV_P_ ev_async *w) 4260ev_async_start (EV_P_ ev_async *w) EV_THROW
3358{ 4261{
3359 if (expect_false (ev_is_active (w))) 4262 if (expect_false (ev_is_active (w)))
3360 return; 4263 return;
4264
4265 w->sent = 0;
3361 4266
3362 evpipe_init (EV_A); 4267 evpipe_init (EV_A);
3363 4268
3364 EV_FREQUENT_CHECK; 4269 EV_FREQUENT_CHECK;
3365 4270
… …
3369 4274
3370 EV_FREQUENT_CHECK; 4275 EV_FREQUENT_CHECK;
3371} 4276}
3372 4277
3373void 4278void
3374ev_async_stop (EV_P_ ev_async *w) 4279ev_async_stop (EV_P_ ev_async *w) EV_THROW
3375{ 4280{
3376 clear_pending (EV_A_ (W)w); 4281 clear_pending (EV_A_ (W)w);
3377 if (expect_false (!ev_is_active (w))) 4282 if (expect_false (!ev_is_active (w)))
3378 return; 4283 return;
3379 4284
… …
3390 4295
3391 EV_FREQUENT_CHECK; 4296 EV_FREQUENT_CHECK;
3392} 4297}
3393 4298
3394void 4299void
3395ev_async_send (EV_P_ ev_async *w) 4300ev_async_send (EV_P_ ev_async *w) EV_THROW
3396{ 4301{
3397 w->sent = 1; 4302 w->sent = 1;
3398 evpipe_write (EV_A_ &gotasync); 4303 evpipe_write (EV_A_ &async_pending);
3399} 4304}
3400#endif 4305#endif
3401 4306
3402/*****************************************************************************/ 4307/*****************************************************************************/
3403 4308
… …
3437 4342
3438 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4343 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3439} 4344}
3440 4345
3441void 4346void
3442ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4347ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3443{ 4348{
3444 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4349 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3445 4350
3446 if (expect_false (!once)) 4351 if (expect_false (!once))
3447 { 4352 {
3448 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4353 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3449 return; 4354 return;
3450 } 4355 }
3451 4356
3452 once->cb = cb; 4357 once->cb = cb;
3453 once->arg = arg; 4358 once->arg = arg;
… …
3468} 4373}
3469 4374
3470/*****************************************************************************/ 4375/*****************************************************************************/
3471 4376
3472#if EV_WALK_ENABLE 4377#if EV_WALK_ENABLE
3473void 4378void ecb_cold
3474ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4379ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3475{ 4380{
3476 int i, j; 4381 int i, j;
3477 ev_watcher_list *wl, *wn; 4382 ev_watcher_list *wl, *wn;
3478 4383
3479 if (types & (EV_IO | EV_EMBED)) 4384 if (types & (EV_IO | EV_EMBED))
… …
3522 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4427 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3523#endif 4428#endif
3524 4429
3525#if EV_IDLE_ENABLE 4430#if EV_IDLE_ENABLE
3526 if (types & EV_IDLE) 4431 if (types & EV_IDLE)
3527 for (j = NUMPRI; i--; ) 4432 for (j = NUMPRI; j--; )
3528 for (i = idlecnt [j]; i--; ) 4433 for (i = idlecnt [j]; i--; )
3529 cb (EV_A_ EV_IDLE, idles [j][i]); 4434 cb (EV_A_ EV_IDLE, idles [j][i]);
3530#endif 4435#endif
3531 4436
3532#if EV_FORK_ENABLE 4437#if EV_FORK_ENABLE
… …
3540 if (types & EV_ASYNC) 4445 if (types & EV_ASYNC)
3541 for (i = asynccnt; i--; ) 4446 for (i = asynccnt; i--; )
3542 cb (EV_A_ EV_ASYNC, asyncs [i]); 4447 cb (EV_A_ EV_ASYNC, asyncs [i]);
3543#endif 4448#endif
3544 4449
4450#if EV_PREPARE_ENABLE
3545 if (types & EV_PREPARE) 4451 if (types & EV_PREPARE)
3546 for (i = preparecnt; i--; ) 4452 for (i = preparecnt; i--; )
3547#if EV_EMBED_ENABLE 4453# if EV_EMBED_ENABLE
3548 if (ev_cb (prepares [i]) != embed_prepare_cb) 4454 if (ev_cb (prepares [i]) != embed_prepare_cb)
3549#endif 4455# endif
3550 cb (EV_A_ EV_PREPARE, prepares [i]); 4456 cb (EV_A_ EV_PREPARE, prepares [i]);
4457#endif
3551 4458
4459#if EV_CHECK_ENABLE
3552 if (types & EV_CHECK) 4460 if (types & EV_CHECK)
3553 for (i = checkcnt; i--; ) 4461 for (i = checkcnt; i--; )
3554 cb (EV_A_ EV_CHECK, checks [i]); 4462 cb (EV_A_ EV_CHECK, checks [i]);
4463#endif
3555 4464
4465#if EV_SIGNAL_ENABLE
3556 if (types & EV_SIGNAL) 4466 if (types & EV_SIGNAL)
3557 for (i = 0; i < signalmax; ++i) 4467 for (i = 0; i < EV_NSIG - 1; ++i)
3558 for (wl = signals [i].head; wl; ) 4468 for (wl = signals [i].head; wl; )
3559 { 4469 {
3560 wn = wl->next; 4470 wn = wl->next;
3561 cb (EV_A_ EV_SIGNAL, wl); 4471 cb (EV_A_ EV_SIGNAL, wl);
3562 wl = wn; 4472 wl = wn;
3563 } 4473 }
4474#endif
3564 4475
4476#if EV_CHILD_ENABLE
3565 if (types & EV_CHILD) 4477 if (types & EV_CHILD)
3566 for (i = EV_PID_HASHSIZE; i--; ) 4478 for (i = (EV_PID_HASHSIZE); i--; )
3567 for (wl = childs [i]; wl; ) 4479 for (wl = childs [i]; wl; )
3568 { 4480 {
3569 wn = wl->next; 4481 wn = wl->next;
3570 cb (EV_A_ EV_CHILD, wl); 4482 cb (EV_A_ EV_CHILD, wl);
3571 wl = wn; 4483 wl = wn;
3572 } 4484 }
4485#endif
3573/* EV_STAT 0x00001000 /* stat data changed */ 4486/* EV_STAT 0x00001000 /* stat data changed */
3574/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4487/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3575} 4488}
3576#endif 4489#endif
3577 4490
3578#if EV_MULTIPLICITY 4491#if EV_MULTIPLICITY
3579 #include "ev_wrap.h" 4492 #include "ev_wrap.h"
3580#endif 4493#endif
3581 4494
3582#ifdef __cplusplus
3583}
3584#endif
3585

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