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

Comparing libev/ev.c (file contents):
Revision 1.315 by root, Wed Aug 26 17:46:22 2009 UTC vs.
Revision 1.429 by root, Tue May 8 15:50:49 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>
179# include <unistd.h> 202# include <unistd.h>
180#else 203#else
181# include <io.h> 204# include <io.h>
182# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
183# include <windows.h> 206# include <windows.h>
207# include <winsock2.h>
184# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
186# endif 210# endif
211# undef EV_AVOID_STDIO
187#endif 212#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
188 221
189/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
190 223
191/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG) 225#if defined EV_NSIG
193/* use what's provided */ 226/* use what's provided */
194#elif defined (NSIG) 227#elif defined NSIG
195# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
196#elif defined(_NSIG) 229#elif defined _NSIG
197# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
198#elif defined (SIGMAX) 231#elif defined SIGMAX
199# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
200#elif defined (SIG_MAX) 233#elif defined SIG_MAX
201# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
202#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
203# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
204#elif defined (MAXSIG) 237#elif defined MAXSIG
205# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG) 239#elif defined MAX_SIG
207# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig) 243#elif defined _sys_nsig
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else 245#else
213# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */ 247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
215# define EV_NSIG 65 249# define EV_NSIG 65
250#endif
251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
216#endif 254#endif
217 255
218#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221# else 259# else
222# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
223# endif 261# endif
224#endif 262#endif
225 263
226#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
229# else 267# else
230# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
231# endif 269# endif
232#endif 270#endif
233 271
… …
235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236#endif 274#endif
237 275
238#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
241# else 279# else
242# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
243# endif 281# endif
244#endif 282#endif
245 283
246#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
247# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
248#endif 286#endif
249 287
250#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
251# ifdef _WIN32 289# ifdef _WIN32
252# define EV_USE_POLL 0 290# define EV_USE_POLL 0
253# else 291# else
254# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
255# endif 293# endif
256#endif 294#endif
257 295
258#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
259# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261# else 299# else
262# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
263# endif 301# endif
264#endif 302#endif
265 303
… …
271# define EV_USE_PORT 0 309# define EV_USE_PORT 0
272#endif 310#endif
273 311
274#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
275# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
277# else 315# else
278# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
279# endif 317# endif
280#endif 318#endif
281 319
282#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
283# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
284# define EV_PID_HASHSIZE 1
285# else
286# define EV_PID_HASHSIZE 16
287# endif
288#endif 322#endif
289 323
290#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
291# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
292# define EV_INOTIFY_HASHSIZE 1
293# else
294# define EV_INOTIFY_HASHSIZE 16
295# endif
296#endif 326#endif
297 327
298#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
299# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
301# else 331# else
302# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
303# endif 333# endif
304#endif 334#endif
305 335
306#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
309# else 339# else
310# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
311# endif 341# endif
312#endif 342#endif
313 343
… …
316# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
317# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
318#endif 348#endif
319 349
320#ifndef EV_VERIFY 350#ifndef EV_VERIFY
321# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322#endif 352#endif
323 353
324#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
325# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
326#endif 356#endif
327 357
328#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
329# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330#endif 360#endif
331 361
332/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
335# include <syscall.h> 365# include <sys/syscall.h>
336# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
337# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
338# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
339# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
340# else 370# else
… …
343# endif 373# endif
344#endif 374#endif
345 375
346/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 376/* this block fixes any misconfiguration where we know we run into trouble otherwise */
347 377
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
348#ifndef CLOCK_MONOTONIC 384#ifndef CLOCK_MONOTONIC
349# undef EV_USE_MONOTONIC 385# undef EV_USE_MONOTONIC
350# define EV_USE_MONOTONIC 0 386# define EV_USE_MONOTONIC 0
351#endif 387#endif
352 388
… …
359# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
360# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
361#endif 397#endif
362 398
363#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
364# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
365# include <sys/select.h> 402# include <sys/select.h>
366# endif 403# endif
367#endif 404#endif
368 405
369#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h> 407# include <sys/statfs.h>
372# include <sys/inotify.h> 408# include <sys/inotify.h>
373/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
374# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
375# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
… …
392# define EFD_CLOEXEC O_CLOEXEC 428# define EFD_CLOEXEC O_CLOEXEC
393# else 429# else
394# define EFD_CLOEXEC 02000000 430# define EFD_CLOEXEC 02000000
395# endif 431# endif
396# endif 432# endif
397# ifdef __cplusplus
398extern "C" {
399# endif
400int eventfd (unsigned int initval, int flags); 433EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
401# ifdef __cplusplus
402}
403# endif
404#endif 434#endif
405 435
406#if EV_USE_SIGNALFD 436#if EV_USE_SIGNALFD
407/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 437/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
408# include <stdint.h> 438# include <stdint.h>
… …
414# define SFD_CLOEXEC O_CLOEXEC 444# define SFD_CLOEXEC O_CLOEXEC
415# else 445# else
416# define SFD_CLOEXEC 02000000 446# define SFD_CLOEXEC 02000000
417# endif 447# endif
418# endif 448# endif
419# ifdef __cplusplus
420extern "C" {
421# endif
422int signalfd (int fd, const sigset_t *mask, int flags); 449EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
423 450
424struct signalfd_siginfo 451struct signalfd_siginfo
425{ 452{
426 uint32_t ssi_signo; 453 uint32_t ssi_signo;
427 char pad[128 - sizeof (uint32_t)]; 454 char pad[128 - sizeof (uint32_t)];
428}; 455};
429# ifdef __cplusplus
430}
431# endif 456#endif
432#endif
433
434 457
435/**/ 458/**/
436 459
437#if EV_VERIFY >= 3 460#if EV_VERIFY >= 3
438# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 461# define EV_FREQUENT_CHECK ev_verify (EV_A)
439#else 462#else
440# define EV_FREQUENT_CHECK do { } while (0) 463# define EV_FREQUENT_CHECK do { } while (0)
441#endif 464#endif
442 465
443/* 466/*
444 * This is used to avoid floating point rounding problems. 467 * This is used to work around floating point rounding problems.
445 * It is added to ev_rt_now when scheduling periodics
446 * to ensure progress, time-wise, even when rounding
447 * errors are against us.
448 * This value is good at least till the year 4000. 468 * This value is good at least till the year 4000.
449 * Better solutions welcome.
450 */ 469 */
451#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 470#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
471/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
452 472
453#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 473#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
454#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 474#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
455/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
456 475
476#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
477#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
478
479/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
480/* ECB.H BEGIN */
481/*
482 * libecb - http://software.schmorp.de/pkg/libecb
483 *
484 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
485 * Copyright (©) 2011 Emanuele Giaquinta
486 * All rights reserved.
487 *
488 * Redistribution and use in source and binary forms, with or without modifica-
489 * tion, are permitted provided that the following conditions are met:
490 *
491 * 1. Redistributions of source code must retain the above copyright notice,
492 * this list of conditions and the following disclaimer.
493 *
494 * 2. Redistributions in binary form must reproduce the above copyright
495 * notice, this list of conditions and the following disclaimer in the
496 * documentation and/or other materials provided with the distribution.
497 *
498 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
499 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
500 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
501 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
502 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
503 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
504 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
505 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
506 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
507 * OF THE POSSIBILITY OF SUCH DAMAGE.
508 */
509
510#ifndef ECB_H
511#define ECB_H
512
513#ifdef _WIN32
514 typedef signed char int8_t;
515 typedef unsigned char uint8_t;
516 typedef signed short int16_t;
517 typedef unsigned short uint16_t;
518 typedef signed int int32_t;
519 typedef unsigned int uint32_t;
457#if __GNUC__ >= 4 520 #if __GNUC__
458# define expect(expr,value) __builtin_expect ((expr),(value)) 521 typedef signed long long int64_t;
459# define noinline __attribute__ ((noinline)) 522 typedef unsigned long long uint64_t;
523 #else /* _MSC_VER || __BORLANDC__ */
524 typedef signed __int64 int64_t;
525 typedef unsigned __int64 uint64_t;
526 #endif
460#else 527#else
461# define expect(expr,value) (expr) 528 #include <inttypes.h>
462# define noinline
463# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
464# define inline
465# endif 529#endif
530
531/* many compilers define _GNUC_ to some versions but then only implement
532 * what their idiot authors think are the "more important" extensions,
533 * causing enormous grief in return for some better fake benchmark numbers.
534 * or so.
535 * we try to detect these and simply assume they are not gcc - if they have
536 * an issue with that they should have done it right in the first place.
537 */
538#ifndef ECB_GCC_VERSION
539 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
540 #define ECB_GCC_VERSION(major,minor) 0
541 #else
542 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
466#endif 543 #endif
544#endif
467 545
546/*****************************************************************************/
547
548/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
549/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
550
551#if ECB_NO_THREADS
552# define ECB_NO_SMP 1
553#endif
554
555#if ECB_NO_THREADS || ECB_NO_SMP
556 #define ECB_MEMORY_FENCE do { } while (0)
557#endif
558
559#ifndef ECB_MEMORY_FENCE
560 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
561 #if __i386 || __i386__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
564 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
565 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
568 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
569 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
570 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
571 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
572 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
573 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
574 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
575 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
576 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
577 #elif __sparc || __sparc__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
579 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
580 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
581 #elif defined __s390__ || defined __s390x__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
583 #elif defined __mips__
584 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
585 #elif defined __alpha__
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
587 #endif
588 #endif
589#endif
590
591#ifndef ECB_MEMORY_FENCE
592 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
593 #define ECB_MEMORY_FENCE __sync_synchronize ()
594 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
595 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
596 #elif _MSC_VER >= 1400 /* VC++ 2005 */
597 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
598 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
599 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
600 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
601 #elif defined _WIN32
602 #include <WinNT.h>
603 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
604 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
605 #include <mbarrier.h>
606 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
607 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
608 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
609 #elif __xlC__
610 #define ECB_MEMORY_FENCE __sync ()
611 #endif
612#endif
613
614#ifndef ECB_MEMORY_FENCE
615 #if !ECB_AVOID_PTHREADS
616 /*
617 * if you get undefined symbol references to pthread_mutex_lock,
618 * or failure to find pthread.h, then you should implement
619 * the ECB_MEMORY_FENCE operations for your cpu/compiler
620 * OR provide pthread.h and link against the posix thread library
621 * of your system.
622 */
623 #include <pthread.h>
624 #define ECB_NEEDS_PTHREADS 1
625 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
626
627 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
628 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
629 #endif
630#endif
631
632#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
633 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
634#endif
635
636#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
637 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
638#endif
639
640/*****************************************************************************/
641
642#define ECB_C99 (__STDC_VERSION__ >= 199901L)
643
644#if __cplusplus
645 #define ecb_inline static inline
646#elif ECB_GCC_VERSION(2,5)
647 #define ecb_inline static __inline__
648#elif ECB_C99
649 #define ecb_inline static inline
650#else
651 #define ecb_inline static
652#endif
653
654#if ECB_GCC_VERSION(3,3)
655 #define ecb_restrict __restrict__
656#elif ECB_C99
657 #define ecb_restrict restrict
658#else
659 #define ecb_restrict
660#endif
661
662typedef int ecb_bool;
663
664#define ECB_CONCAT_(a, b) a ## b
665#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
666#define ECB_STRINGIFY_(a) # a
667#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
668
669#define ecb_function_ ecb_inline
670
671#if ECB_GCC_VERSION(3,1)
672 #define ecb_attribute(attrlist) __attribute__(attrlist)
673 #define ecb_is_constant(expr) __builtin_constant_p (expr)
674 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
675 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
676#else
677 #define ecb_attribute(attrlist)
678 #define ecb_is_constant(expr) 0
679 #define ecb_expect(expr,value) (expr)
680 #define ecb_prefetch(addr,rw,locality)
681#endif
682
683/* no emulation for ecb_decltype */
684#if ECB_GCC_VERSION(4,5)
685 #define ecb_decltype(x) __decltype(x)
686#elif ECB_GCC_VERSION(3,0)
687 #define ecb_decltype(x) __typeof(x)
688#endif
689
690#define ecb_noinline ecb_attribute ((__noinline__))
691#define ecb_noreturn ecb_attribute ((__noreturn__))
692#define ecb_unused ecb_attribute ((__unused__))
693#define ecb_const ecb_attribute ((__const__))
694#define ecb_pure ecb_attribute ((__pure__))
695
696#if ECB_GCC_VERSION(4,3)
697 #define ecb_artificial ecb_attribute ((__artificial__))
698 #define ecb_hot ecb_attribute ((__hot__))
699 #define ecb_cold ecb_attribute ((__cold__))
700#else
701 #define ecb_artificial
702 #define ecb_hot
703 #define ecb_cold
704#endif
705
706/* put around conditional expressions if you are very sure that the */
707/* expression is mostly true or mostly false. note that these return */
708/* booleans, not the expression. */
468#define expect_false(expr) expect ((expr) != 0, 0) 709#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
469#define expect_true(expr) expect ((expr) != 0, 1) 710#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
711/* for compatibility to the rest of the world */
712#define ecb_likely(expr) ecb_expect_true (expr)
713#define ecb_unlikely(expr) ecb_expect_false (expr)
714
715/* count trailing zero bits and count # of one bits */
716#if ECB_GCC_VERSION(3,4)
717 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
718 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
719 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
720 #define ecb_ctz32(x) __builtin_ctz (x)
721 #define ecb_ctz64(x) __builtin_ctzll (x)
722 #define ecb_popcount32(x) __builtin_popcount (x)
723 /* no popcountll */
724#else
725 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
726 ecb_function_ int
727 ecb_ctz32 (uint32_t x)
728 {
729 int r = 0;
730
731 x &= ~x + 1; /* this isolates the lowest bit */
732
733#if ECB_branchless_on_i386
734 r += !!(x & 0xaaaaaaaa) << 0;
735 r += !!(x & 0xcccccccc) << 1;
736 r += !!(x & 0xf0f0f0f0) << 2;
737 r += !!(x & 0xff00ff00) << 3;
738 r += !!(x & 0xffff0000) << 4;
739#else
740 if (x & 0xaaaaaaaa) r += 1;
741 if (x & 0xcccccccc) r += 2;
742 if (x & 0xf0f0f0f0) r += 4;
743 if (x & 0xff00ff00) r += 8;
744 if (x & 0xffff0000) r += 16;
745#endif
746
747 return r;
748 }
749
750 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
751 ecb_function_ int
752 ecb_ctz64 (uint64_t x)
753 {
754 int shift = x & 0xffffffffU ? 0 : 32;
755 return ecb_ctz32 (x >> shift) + shift;
756 }
757
758 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
759 ecb_function_ int
760 ecb_popcount32 (uint32_t x)
761 {
762 x -= (x >> 1) & 0x55555555;
763 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
764 x = ((x >> 4) + x) & 0x0f0f0f0f;
765 x *= 0x01010101;
766
767 return x >> 24;
768 }
769
770 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
771 ecb_function_ int ecb_ld32 (uint32_t x)
772 {
773 int r = 0;
774
775 if (x >> 16) { x >>= 16; r += 16; }
776 if (x >> 8) { x >>= 8; r += 8; }
777 if (x >> 4) { x >>= 4; r += 4; }
778 if (x >> 2) { x >>= 2; r += 2; }
779 if (x >> 1) { r += 1; }
780
781 return r;
782 }
783
784 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
785 ecb_function_ int ecb_ld64 (uint64_t x)
786 {
787 int r = 0;
788
789 if (x >> 32) { x >>= 32; r += 32; }
790
791 return r + ecb_ld32 (x);
792 }
793#endif
794
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
796ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
797{
798 return ( (x * 0x0802U & 0x22110U)
799 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
800}
801
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
803ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
804{
805 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
806 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
807 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
808 x = ( x >> 8 ) | ( x << 8);
809
810 return x;
811}
812
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
814ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
815{
816 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
817 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
818 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
819 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
820 x = ( x >> 16 ) | ( x << 16);
821
822 return x;
823}
824
825/* popcount64 is only available on 64 bit cpus as gcc builtin */
826/* so for this version we are lazy */
827ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
828ecb_function_ int
829ecb_popcount64 (uint64_t x)
830{
831 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
832}
833
834ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
841ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
842
843ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
844ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
845ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
846ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
847ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
848ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
849ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
850ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
851
852#if ECB_GCC_VERSION(4,3)
853 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
854 #define ecb_bswap32(x) __builtin_bswap32 (x)
855 #define ecb_bswap64(x) __builtin_bswap64 (x)
856#else
857 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
858 ecb_function_ uint16_t
859 ecb_bswap16 (uint16_t x)
860 {
861 return ecb_rotl16 (x, 8);
862 }
863
864 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
865 ecb_function_ uint32_t
866 ecb_bswap32 (uint32_t x)
867 {
868 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
869 }
870
871 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
872 ecb_function_ uint64_t
873 ecb_bswap64 (uint64_t x)
874 {
875 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
876 }
877#endif
878
879#if ECB_GCC_VERSION(4,5)
880 #define ecb_unreachable() __builtin_unreachable ()
881#else
882 /* this seems to work fine, but gcc always emits a warning for it :/ */
883 ecb_inline void ecb_unreachable (void) ecb_noreturn;
884 ecb_inline void ecb_unreachable (void) { }
885#endif
886
887/* try to tell the compiler that some condition is definitely true */
888#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
889
890ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
891ecb_inline unsigned char
892ecb_byteorder_helper (void)
893{
894 const uint32_t u = 0x11223344;
895 return *(unsigned char *)&u;
896}
897
898ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
899ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
900ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
901ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
902
903#if ECB_GCC_VERSION(3,0) || ECB_C99
904 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
905#else
906 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
907#endif
908
909#if __cplusplus
910 template<typename T>
911 static inline T ecb_div_rd (T val, T div)
912 {
913 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
914 }
915 template<typename T>
916 static inline T ecb_div_ru (T val, T div)
917 {
918 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
919 }
920#else
921 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
922 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
923#endif
924
925#if ecb_cplusplus_does_not_suck
926 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
927 template<typename T, int N>
928 static inline int ecb_array_length (const T (&arr)[N])
929 {
930 return N;
931 }
932#else
933 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
934#endif
935
936#endif
937
938/* ECB.H END */
939
940#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
941/* if your architecture doesn't need memory fences, e.g. because it is
942 * single-cpu/core, or if you use libev in a project that doesn't use libev
943 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
944 * libev, in which cases the memory fences become nops.
945 * alternatively, you can remove this #error and link against libpthread,
946 * which will then provide the memory fences.
947 */
948# error "memory fences not defined for your architecture, please report"
949#endif
950
951#ifndef ECB_MEMORY_FENCE
952# define ECB_MEMORY_FENCE do { } while (0)
953# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
954# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
955#endif
956
957#define expect_false(cond) ecb_expect_false (cond)
958#define expect_true(cond) ecb_expect_true (cond)
959#define noinline ecb_noinline
960
470#define inline_size static inline 961#define inline_size ecb_inline
471 962
472#if EV_MINIMAL 963#if EV_FEATURE_CODE
964# define inline_speed ecb_inline
965#else
473# define inline_speed static noinline 966# define inline_speed static noinline
474#else
475# define inline_speed static inline
476#endif 967#endif
477 968
478#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 969#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
479 970
480#if EV_MINPRI == EV_MAXPRI 971#if EV_MINPRI == EV_MAXPRI
… …
493#define ev_active(w) ((W)(w))->active 984#define ev_active(w) ((W)(w))->active
494#define ev_at(w) ((WT)(w))->at 985#define ev_at(w) ((WT)(w))->at
495 986
496#if EV_USE_REALTIME 987#if EV_USE_REALTIME
497/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 988/* sig_atomic_t is used to avoid per-thread variables or locking but still */
498/* giving it a reasonably high chance of working on typical architetcures */ 989/* giving it a reasonably high chance of working on typical architectures */
499static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 990static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
500#endif 991#endif
501 992
502#if EV_USE_MONOTONIC 993#if EV_USE_MONOTONIC
503static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 994static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
505 996
506#ifndef EV_FD_TO_WIN32_HANDLE 997#ifndef EV_FD_TO_WIN32_HANDLE
507# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) 998# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
508#endif 999#endif
509#ifndef EV_WIN32_HANDLE_TO_FD 1000#ifndef EV_WIN32_HANDLE_TO_FD
510# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) 1001# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
511#endif 1002#endif
512#ifndef EV_WIN32_CLOSE_FD 1003#ifndef EV_WIN32_CLOSE_FD
513# define EV_WIN32_CLOSE_FD(fd) close (fd) 1004# define EV_WIN32_CLOSE_FD(fd) close (fd)
514#endif 1005#endif
515 1006
… …
517# include "ev_win32.c" 1008# include "ev_win32.c"
518#endif 1009#endif
519 1010
520/*****************************************************************************/ 1011/*****************************************************************************/
521 1012
1013/* define a suitable floor function (only used by periodics atm) */
1014
1015#if EV_USE_FLOOR
1016# include <math.h>
1017# define ev_floor(v) floor (v)
1018#else
1019
1020#include <float.h>
1021
1022/* a floor() replacement function, should be independent of ev_tstamp type */
1023static ev_tstamp noinline
1024ev_floor (ev_tstamp v)
1025{
1026 /* the choice of shift factor is not terribly important */
1027#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1028 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1029#else
1030 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1031#endif
1032
1033 /* argument too large for an unsigned long? */
1034 if (expect_false (v >= shift))
1035 {
1036 ev_tstamp f;
1037
1038 if (v == v - 1.)
1039 return v; /* very large number */
1040
1041 f = shift * ev_floor (v * (1. / shift));
1042 return f + ev_floor (v - f);
1043 }
1044
1045 /* special treatment for negative args? */
1046 if (expect_false (v < 0.))
1047 {
1048 ev_tstamp f = -ev_floor (-v);
1049
1050 return f - (f == v ? 0 : 1);
1051 }
1052
1053 /* fits into an unsigned long */
1054 return (unsigned long)v;
1055}
1056
1057#endif
1058
1059/*****************************************************************************/
1060
1061#ifdef __linux
1062# include <sys/utsname.h>
1063#endif
1064
1065static unsigned int noinline ecb_cold
1066ev_linux_version (void)
1067{
1068#ifdef __linux
1069 unsigned int v = 0;
1070 struct utsname buf;
1071 int i;
1072 char *p = buf.release;
1073
1074 if (uname (&buf))
1075 return 0;
1076
1077 for (i = 3+1; --i; )
1078 {
1079 unsigned int c = 0;
1080
1081 for (;;)
1082 {
1083 if (*p >= '0' && *p <= '9')
1084 c = c * 10 + *p++ - '0';
1085 else
1086 {
1087 p += *p == '.';
1088 break;
1089 }
1090 }
1091
1092 v = (v << 8) | c;
1093 }
1094
1095 return v;
1096#else
1097 return 0;
1098#endif
1099}
1100
1101/*****************************************************************************/
1102
1103#if EV_AVOID_STDIO
1104static void noinline ecb_cold
1105ev_printerr (const char *msg)
1106{
1107 write (STDERR_FILENO, msg, strlen (msg));
1108}
1109#endif
1110
522static void (*syserr_cb)(const char *msg); 1111static void (*syserr_cb)(const char *msg) EV_THROW;
523 1112
524void 1113void ecb_cold
525ev_set_syserr_cb (void (*cb)(const char *msg)) 1114ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
526{ 1115{
527 syserr_cb = cb; 1116 syserr_cb = cb;
528} 1117}
529 1118
530static void noinline 1119static void noinline ecb_cold
531ev_syserr (const char *msg) 1120ev_syserr (const char *msg)
532{ 1121{
533 if (!msg) 1122 if (!msg)
534 msg = "(libev) system error"; 1123 msg = "(libev) system error";
535 1124
536 if (syserr_cb) 1125 if (syserr_cb)
537 syserr_cb (msg); 1126 syserr_cb (msg);
538 else 1127 else
539 { 1128 {
1129#if EV_AVOID_STDIO
1130 ev_printerr (msg);
1131 ev_printerr (": ");
1132 ev_printerr (strerror (errno));
1133 ev_printerr ("\n");
1134#else
540 perror (msg); 1135 perror (msg);
1136#endif
541 abort (); 1137 abort ();
542 } 1138 }
543} 1139}
544 1140
545static void * 1141static void *
546ev_realloc_emul (void *ptr, long size) 1142ev_realloc_emul (void *ptr, long size)
547{ 1143{
1144#if __GLIBC__
1145 return realloc (ptr, size);
1146#else
548 /* some systems, notably openbsd and darwin, fail to properly 1147 /* some systems, notably openbsd and darwin, fail to properly
549 * implement realloc (x, 0) (as required by both ansi c-98 and 1148 * implement realloc (x, 0) (as required by both ansi c-89 and
550 * the single unix specification, so work around them here. 1149 * the single unix specification, so work around them here.
551 */ 1150 */
552 1151
553 if (size) 1152 if (size)
554 return realloc (ptr, size); 1153 return realloc (ptr, size);
555 1154
556 free (ptr); 1155 free (ptr);
557 return 0; 1156 return 0;
1157#endif
558} 1158}
559 1159
560static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1160static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
561 1161
562void 1162void ecb_cold
563ev_set_allocator (void *(*cb)(void *ptr, long size)) 1163ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
564{ 1164{
565 alloc = cb; 1165 alloc = cb;
566} 1166}
567 1167
568inline_speed void * 1168inline_speed void *
… …
570{ 1170{
571 ptr = alloc (ptr, size); 1171 ptr = alloc (ptr, size);
572 1172
573 if (!ptr && size) 1173 if (!ptr && size)
574 { 1174 {
1175#if EV_AVOID_STDIO
1176 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1177#else
575 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1178 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1179#endif
576 abort (); 1180 abort ();
577 } 1181 }
578 1182
579 return ptr; 1183 return ptr;
580} 1184}
… …
596 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1200 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
597 unsigned char unused; 1201 unsigned char unused;
598#if EV_USE_EPOLL 1202#if EV_USE_EPOLL
599 unsigned int egen; /* generation counter to counter epoll bugs */ 1203 unsigned int egen; /* generation counter to counter epoll bugs */
600#endif 1204#endif
601#if EV_SELECT_IS_WINSOCKET 1205#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
602 SOCKET handle; 1206 SOCKET handle;
1207#endif
1208#if EV_USE_IOCP
1209 OVERLAPPED or, ow;
603#endif 1210#endif
604} ANFD; 1211} ANFD;
605 1212
606/* stores the pending event set for a given watcher */ 1213/* stores the pending event set for a given watcher */
607typedef struct 1214typedef struct
… …
649 #undef VAR 1256 #undef VAR
650 }; 1257 };
651 #include "ev_wrap.h" 1258 #include "ev_wrap.h"
652 1259
653 static struct ev_loop default_loop_struct; 1260 static struct ev_loop default_loop_struct;
654 struct ev_loop *ev_default_loop_ptr; 1261 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
655 1262
656#else 1263#else
657 1264
658 ev_tstamp ev_rt_now; 1265 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
659 #define VAR(name,decl) static decl; 1266 #define VAR(name,decl) static decl;
660 #include "ev_vars.h" 1267 #include "ev_vars.h"
661 #undef VAR 1268 #undef VAR
662 1269
663 static int ev_default_loop_ptr; 1270 static int ev_default_loop_ptr;
664 1271
665#endif 1272#endif
666 1273
667#if EV_MINIMAL < 2 1274#if EV_FEATURE_API
668# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1275# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
669# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1276# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
670# define EV_INVOKE_PENDING invoke_cb (EV_A) 1277# define EV_INVOKE_PENDING invoke_cb (EV_A)
671#else 1278#else
672# define EV_RELEASE_CB (void)0 1279# define EV_RELEASE_CB (void)0
673# define EV_ACQUIRE_CB (void)0 1280# define EV_ACQUIRE_CB (void)0
674# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1281# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
675#endif 1282#endif
676 1283
677#define EVUNLOOP_RECURSE 0x80 1284#define EVBREAK_RECURSE 0x80
678 1285
679/*****************************************************************************/ 1286/*****************************************************************************/
680 1287
681#ifndef EV_HAVE_EV_TIME 1288#ifndef EV_HAVE_EV_TIME
682ev_tstamp 1289ev_tstamp
683ev_time (void) 1290ev_time (void) EV_THROW
684{ 1291{
685#if EV_USE_REALTIME 1292#if EV_USE_REALTIME
686 if (expect_true (have_realtime)) 1293 if (expect_true (have_realtime))
687 { 1294 {
688 struct timespec ts; 1295 struct timespec ts;
… …
712 return ev_time (); 1319 return ev_time ();
713} 1320}
714 1321
715#if EV_MULTIPLICITY 1322#if EV_MULTIPLICITY
716ev_tstamp 1323ev_tstamp
717ev_now (EV_P) 1324ev_now (EV_P) EV_THROW
718{ 1325{
719 return ev_rt_now; 1326 return ev_rt_now;
720} 1327}
721#endif 1328#endif
722 1329
723void 1330void
724ev_sleep (ev_tstamp delay) 1331ev_sleep (ev_tstamp delay) EV_THROW
725{ 1332{
726 if (delay > 0.) 1333 if (delay > 0.)
727 { 1334 {
728#if EV_USE_NANOSLEEP 1335#if EV_USE_NANOSLEEP
729 struct timespec ts; 1336 struct timespec ts;
730 1337
731 ts.tv_sec = (time_t)delay; 1338 EV_TS_SET (ts, delay);
732 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
733
734 nanosleep (&ts, 0); 1339 nanosleep (&ts, 0);
735#elif defined(_WIN32) 1340#elif defined _WIN32
736 Sleep ((unsigned long)(delay * 1e3)); 1341 Sleep ((unsigned long)(delay * 1e3));
737#else 1342#else
738 struct timeval tv; 1343 struct timeval tv;
739 1344
740 tv.tv_sec = (time_t)delay;
741 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
742
743 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1345 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
744 /* something not guaranteed by newer posix versions, but guaranteed */ 1346 /* something not guaranteed by newer posix versions, but guaranteed */
745 /* by older ones */ 1347 /* by older ones */
1348 EV_TV_SET (tv, delay);
746 select (0, 0, 0, 0, &tv); 1349 select (0, 0, 0, 0, &tv);
747#endif 1350#endif
748 } 1351 }
749} 1352}
750 1353
751/*****************************************************************************/ 1354/*****************************************************************************/
752 1355
753#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1356#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
754 1357
755/* find a suitable new size for the given array, */ 1358/* find a suitable new size for the given array, */
756/* hopefully by rounding to a ncie-to-malloc size */ 1359/* hopefully by rounding to a nice-to-malloc size */
757inline_size int 1360inline_size int
758array_nextsize (int elem, int cur, int cnt) 1361array_nextsize (int elem, int cur, int cnt)
759{ 1362{
760 int ncur = cur + 1; 1363 int ncur = cur + 1;
761 1364
762 do 1365 do
763 ncur <<= 1; 1366 ncur <<= 1;
764 while (cnt > ncur); 1367 while (cnt > ncur);
765 1368
766 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1369 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
767 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1370 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
768 { 1371 {
769 ncur *= elem; 1372 ncur *= elem;
770 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1373 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
771 ncur = ncur - sizeof (void *) * 4; 1374 ncur = ncur - sizeof (void *) * 4;
… …
773 } 1376 }
774 1377
775 return ncur; 1378 return ncur;
776} 1379}
777 1380
778static noinline void * 1381static void * noinline ecb_cold
779array_realloc (int elem, void *base, int *cur, int cnt) 1382array_realloc (int elem, void *base, int *cur, int cnt)
780{ 1383{
781 *cur = array_nextsize (elem, *cur, cnt); 1384 *cur = array_nextsize (elem, *cur, cnt);
782 return ev_realloc (base, elem * *cur); 1385 return ev_realloc (base, elem * *cur);
783} 1386}
… …
786 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1389 memset ((void *)(base), 0, sizeof (*(base)) * (count))
787 1390
788#define array_needsize(type,base,cur,cnt,init) \ 1391#define array_needsize(type,base,cur,cnt,init) \
789 if (expect_false ((cnt) > (cur))) \ 1392 if (expect_false ((cnt) > (cur))) \
790 { \ 1393 { \
791 int ocur_ = (cur); \ 1394 int ecb_unused ocur_ = (cur); \
792 (base) = (type *)array_realloc \ 1395 (base) = (type *)array_realloc \
793 (sizeof (type), (base), &(cur), (cnt)); \ 1396 (sizeof (type), (base), &(cur), (cnt)); \
794 init ((base) + (ocur_), (cur) - ocur_); \ 1397 init ((base) + (ocur_), (cur) - ocur_); \
795 } 1398 }
796 1399
… …
814pendingcb (EV_P_ ev_prepare *w, int revents) 1417pendingcb (EV_P_ ev_prepare *w, int revents)
815{ 1418{
816} 1419}
817 1420
818void noinline 1421void noinline
819ev_feed_event (EV_P_ void *w, int revents) 1422ev_feed_event (EV_P_ void *w, int revents) EV_THROW
820{ 1423{
821 W w_ = (W)w; 1424 W w_ = (W)w;
822 int pri = ABSPRI (w_); 1425 int pri = ABSPRI (w_);
823 1426
824 if (expect_false (w_->pending)) 1427 if (expect_false (w_->pending))
… …
828 w_->pending = ++pendingcnt [pri]; 1431 w_->pending = ++pendingcnt [pri];
829 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1432 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
830 pendings [pri][w_->pending - 1].w = w_; 1433 pendings [pri][w_->pending - 1].w = w_;
831 pendings [pri][w_->pending - 1].events = revents; 1434 pendings [pri][w_->pending - 1].events = revents;
832 } 1435 }
1436
1437 pendingpri = NUMPRI - 1;
833} 1438}
834 1439
835inline_speed void 1440inline_speed void
836feed_reverse (EV_P_ W w) 1441feed_reverse (EV_P_ W w)
837{ 1442{
… …
857} 1462}
858 1463
859/*****************************************************************************/ 1464/*****************************************************************************/
860 1465
861inline_speed void 1466inline_speed void
862fd_event_nc (EV_P_ int fd, int revents) 1467fd_event_nocheck (EV_P_ int fd, int revents)
863{ 1468{
864 ANFD *anfd = anfds + fd; 1469 ANFD *anfd = anfds + fd;
865 ev_io *w; 1470 ev_io *w;
866 1471
867 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1472 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
879fd_event (EV_P_ int fd, int revents) 1484fd_event (EV_P_ int fd, int revents)
880{ 1485{
881 ANFD *anfd = anfds + fd; 1486 ANFD *anfd = anfds + fd;
882 1487
883 if (expect_true (!anfd->reify)) 1488 if (expect_true (!anfd->reify))
884 fd_event_nc (EV_A_ fd, revents); 1489 fd_event_nocheck (EV_A_ fd, revents);
885} 1490}
886 1491
887void 1492void
888ev_feed_fd_event (EV_P_ int fd, int revents) 1493ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
889{ 1494{
890 if (fd >= 0 && fd < anfdmax) 1495 if (fd >= 0 && fd < anfdmax)
891 fd_event_nc (EV_A_ fd, revents); 1496 fd_event_nocheck (EV_A_ fd, revents);
892} 1497}
893 1498
894/* make sure the external fd watch events are in-sync */ 1499/* make sure the external fd watch events are in-sync */
895/* with the kernel/libev internal state */ 1500/* with the kernel/libev internal state */
896inline_size void 1501inline_size void
897fd_reify (EV_P) 1502fd_reify (EV_P)
898{ 1503{
899 int i; 1504 int i;
900 1505
1506#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1507 for (i = 0; i < fdchangecnt; ++i)
1508 {
1509 int fd = fdchanges [i];
1510 ANFD *anfd = anfds + fd;
1511
1512 if (anfd->reify & EV__IOFDSET && anfd->head)
1513 {
1514 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1515
1516 if (handle != anfd->handle)
1517 {
1518 unsigned long arg;
1519
1520 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1521
1522 /* handle changed, but fd didn't - we need to do it in two steps */
1523 backend_modify (EV_A_ fd, anfd->events, 0);
1524 anfd->events = 0;
1525 anfd->handle = handle;
1526 }
1527 }
1528 }
1529#endif
1530
901 for (i = 0; i < fdchangecnt; ++i) 1531 for (i = 0; i < fdchangecnt; ++i)
902 { 1532 {
903 int fd = fdchanges [i]; 1533 int fd = fdchanges [i];
904 ANFD *anfd = anfds + fd; 1534 ANFD *anfd = anfds + fd;
905 ev_io *w; 1535 ev_io *w;
906 1536
907 unsigned char events = 0; 1537 unsigned char o_events = anfd->events;
1538 unsigned char o_reify = anfd->reify;
908 1539
909 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1540 anfd->reify = 0;
910 events |= (unsigned char)w->events;
911 1541
912#if EV_SELECT_IS_WINSOCKET 1542 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
913 if (events)
914 { 1543 {
915 unsigned long arg; 1544 anfd->events = 0;
916 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1545
917 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1546 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1547 anfd->events |= (unsigned char)w->events;
1548
1549 if (o_events != anfd->events)
1550 o_reify = EV__IOFDSET; /* actually |= */
918 } 1551 }
919#endif
920 1552
921 { 1553 if (o_reify & EV__IOFDSET)
922 unsigned char o_events = anfd->events;
923 unsigned char o_reify = anfd->reify;
924
925 anfd->reify = 0;
926 anfd->events = events;
927
928 if (o_events != events || o_reify & EV__IOFDSET)
929 backend_modify (EV_A_ fd, o_events, events); 1554 backend_modify (EV_A_ fd, o_events, anfd->events);
930 }
931 } 1555 }
932 1556
933 fdchangecnt = 0; 1557 fdchangecnt = 0;
934} 1558}
935 1559
… …
947 fdchanges [fdchangecnt - 1] = fd; 1571 fdchanges [fdchangecnt - 1] = fd;
948 } 1572 }
949} 1573}
950 1574
951/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1575/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
952inline_speed void 1576inline_speed void ecb_cold
953fd_kill (EV_P_ int fd) 1577fd_kill (EV_P_ int fd)
954{ 1578{
955 ev_io *w; 1579 ev_io *w;
956 1580
957 while ((w = (ev_io *)anfds [fd].head)) 1581 while ((w = (ev_io *)anfds [fd].head))
… …
959 ev_io_stop (EV_A_ w); 1583 ev_io_stop (EV_A_ w);
960 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1584 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
961 } 1585 }
962} 1586}
963 1587
964/* check whether the given fd is atcually valid, for error recovery */ 1588/* check whether the given fd is actually valid, for error recovery */
965inline_size int 1589inline_size int ecb_cold
966fd_valid (int fd) 1590fd_valid (int fd)
967{ 1591{
968#ifdef _WIN32 1592#ifdef _WIN32
969 return _get_osfhandle (fd) != -1; 1593 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
970#else 1594#else
971 return fcntl (fd, F_GETFD) != -1; 1595 return fcntl (fd, F_GETFD) != -1;
972#endif 1596#endif
973} 1597}
974 1598
975/* called on EBADF to verify fds */ 1599/* called on EBADF to verify fds */
976static void noinline 1600static void noinline ecb_cold
977fd_ebadf (EV_P) 1601fd_ebadf (EV_P)
978{ 1602{
979 int fd; 1603 int fd;
980 1604
981 for (fd = 0; fd < anfdmax; ++fd) 1605 for (fd = 0; fd < anfdmax; ++fd)
… …
983 if (!fd_valid (fd) && errno == EBADF) 1607 if (!fd_valid (fd) && errno == EBADF)
984 fd_kill (EV_A_ fd); 1608 fd_kill (EV_A_ fd);
985} 1609}
986 1610
987/* called on ENOMEM in select/poll to kill some fds and retry */ 1611/* called on ENOMEM in select/poll to kill some fds and retry */
988static void noinline 1612static void noinline ecb_cold
989fd_enomem (EV_P) 1613fd_enomem (EV_P)
990{ 1614{
991 int fd; 1615 int fd;
992 1616
993 for (fd = anfdmax; fd--; ) 1617 for (fd = anfdmax; fd--; )
… …
1011 anfds [fd].emask = 0; 1635 anfds [fd].emask = 0;
1012 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1636 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1013 } 1637 }
1014} 1638}
1015 1639
1640/* used to prepare libev internal fd's */
1641/* this is not fork-safe */
1642inline_speed void
1643fd_intern (int fd)
1644{
1645#ifdef _WIN32
1646 unsigned long arg = 1;
1647 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1648#else
1649 fcntl (fd, F_SETFD, FD_CLOEXEC);
1650 fcntl (fd, F_SETFL, O_NONBLOCK);
1651#endif
1652}
1653
1016/*****************************************************************************/ 1654/*****************************************************************************/
1017 1655
1018/* 1656/*
1019 * the heap functions want a real array index. array index 0 uis guaranteed to not 1657 * the heap functions want a real array index. array index 0 is guaranteed to not
1020 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1658 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1021 * the branching factor of the d-tree. 1659 * the branching factor of the d-tree.
1022 */ 1660 */
1023 1661
1024/* 1662/*
… …
1172 1810
1173static ANSIG signals [EV_NSIG - 1]; 1811static ANSIG signals [EV_NSIG - 1];
1174 1812
1175/*****************************************************************************/ 1813/*****************************************************************************/
1176 1814
1177/* used to prepare libev internal fd's */ 1815#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1178/* this is not fork-safe */
1179inline_speed void
1180fd_intern (int fd)
1181{
1182#ifdef _WIN32
1183 unsigned long arg = 1;
1184 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1185#else
1186 fcntl (fd, F_SETFD, FD_CLOEXEC);
1187 fcntl (fd, F_SETFL, O_NONBLOCK);
1188#endif
1189}
1190 1816
1191static void noinline 1817static void noinline ecb_cold
1192evpipe_init (EV_P) 1818evpipe_init (EV_P)
1193{ 1819{
1194 if (!ev_is_active (&pipe_w)) 1820 if (!ev_is_active (&pipe_w))
1195 { 1821 {
1196#if EV_USE_EVENTFD 1822# if EV_USE_EVENTFD
1197 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1823 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1198 if (evfd < 0 && errno == EINVAL) 1824 if (evfd < 0 && errno == EINVAL)
1199 evfd = eventfd (0, 0); 1825 evfd = eventfd (0, 0);
1200 1826
1201 if (evfd >= 0) 1827 if (evfd >= 0)
… …
1203 evpipe [0] = -1; 1829 evpipe [0] = -1;
1204 fd_intern (evfd); /* doing it twice doesn't hurt */ 1830 fd_intern (evfd); /* doing it twice doesn't hurt */
1205 ev_io_set (&pipe_w, evfd, EV_READ); 1831 ev_io_set (&pipe_w, evfd, EV_READ);
1206 } 1832 }
1207 else 1833 else
1208#endif 1834# endif
1209 { 1835 {
1210 while (pipe (evpipe)) 1836 while (pipe (evpipe))
1211 ev_syserr ("(libev) error creating signal/async pipe"); 1837 ev_syserr ("(libev) error creating signal/async pipe");
1212 1838
1213 fd_intern (evpipe [0]); 1839 fd_intern (evpipe [0]);
… …
1218 ev_io_start (EV_A_ &pipe_w); 1844 ev_io_start (EV_A_ &pipe_w);
1219 ev_unref (EV_A); /* watcher should not keep loop alive */ 1845 ev_unref (EV_A); /* watcher should not keep loop alive */
1220 } 1846 }
1221} 1847}
1222 1848
1223inline_size void 1849inline_speed void
1224evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1850evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1225{ 1851{
1226 if (!*flag) 1852 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1853
1854 if (expect_true (*flag))
1855 return;
1856
1857 *flag = 1;
1858
1859 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1860
1861 pipe_write_skipped = 1;
1862
1863 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1864
1865 if (pipe_write_wanted)
1227 { 1866 {
1867 int old_errno;
1868
1869 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1870
1228 int old_errno = errno; /* save errno because write might clobber it */ 1871 old_errno = errno; /* save errno because write will clobber it */
1229
1230 *flag = 1;
1231 1872
1232#if EV_USE_EVENTFD 1873#if EV_USE_EVENTFD
1233 if (evfd >= 0) 1874 if (evfd >= 0)
1234 { 1875 {
1235 uint64_t counter = 1; 1876 uint64_t counter = 1;
1236 write (evfd, &counter, sizeof (uint64_t)); 1877 write (evfd, &counter, sizeof (uint64_t));
1237 } 1878 }
1238 else 1879 else
1239#endif 1880#endif
1881 {
1882#ifdef _WIN32
1883 WSABUF buf;
1884 DWORD sent;
1885 buf.buf = &buf;
1886 buf.len = 1;
1887 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1888#else
1240 write (evpipe [1], &old_errno, 1); 1889 write (evpipe [1], &(evpipe [1]), 1);
1890#endif
1891 }
1241 1892
1242 errno = old_errno; 1893 errno = old_errno;
1243 } 1894 }
1244} 1895}
1245 1896
… …
1248static void 1899static void
1249pipecb (EV_P_ ev_io *iow, int revents) 1900pipecb (EV_P_ ev_io *iow, int revents)
1250{ 1901{
1251 int i; 1902 int i;
1252 1903
1904 if (revents & EV_READ)
1905 {
1253#if EV_USE_EVENTFD 1906#if EV_USE_EVENTFD
1254 if (evfd >= 0) 1907 if (evfd >= 0)
1255 { 1908 {
1256 uint64_t counter; 1909 uint64_t counter;
1257 read (evfd, &counter, sizeof (uint64_t)); 1910 read (evfd, &counter, sizeof (uint64_t));
1258 } 1911 }
1259 else 1912 else
1260#endif 1913#endif
1261 { 1914 {
1262 char dummy; 1915 char dummy[4];
1916#ifdef _WIN32
1917 WSABUF buf;
1918 DWORD recvd;
1919 buf.buf = dummy;
1920 buf.len = sizeof (dummy);
1921 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0);
1922#else
1263 read (evpipe [0], &dummy, 1); 1923 read (evpipe [0], &dummy, sizeof (dummy));
1924#endif
1925 }
1264 } 1926 }
1265 1927
1928 pipe_write_skipped = 0;
1929
1930 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1931
1932#if EV_SIGNAL_ENABLE
1266 if (sig_pending) 1933 if (sig_pending)
1267 { 1934 {
1268 sig_pending = 0; 1935 sig_pending = 0;
1936
1937 ECB_MEMORY_FENCE_RELEASE;
1269 1938
1270 for (i = EV_NSIG - 1; i--; ) 1939 for (i = EV_NSIG - 1; i--; )
1271 if (expect_false (signals [i].pending)) 1940 if (expect_false (signals [i].pending))
1272 ev_feed_signal_event (EV_A_ i + 1); 1941 ev_feed_signal_event (EV_A_ i + 1);
1273 } 1942 }
1943#endif
1274 1944
1275#if EV_ASYNC_ENABLE 1945#if EV_ASYNC_ENABLE
1276 if (async_pending) 1946 if (async_pending)
1277 { 1947 {
1278 async_pending = 0; 1948 async_pending = 0;
1949
1950 ECB_MEMORY_FENCE_RELEASE;
1279 1951
1280 for (i = asynccnt; i--; ) 1952 for (i = asynccnt; i--; )
1281 if (asyncs [i]->sent) 1953 if (asyncs [i]->sent)
1282 { 1954 {
1283 asyncs [i]->sent = 0; 1955 asyncs [i]->sent = 0;
… …
1287#endif 1959#endif
1288} 1960}
1289 1961
1290/*****************************************************************************/ 1962/*****************************************************************************/
1291 1963
1964void
1965ev_feed_signal (int signum) EV_THROW
1966{
1967#if EV_MULTIPLICITY
1968 EV_P = signals [signum - 1].loop;
1969
1970 if (!EV_A)
1971 return;
1972#endif
1973
1974 if (!ev_active (&pipe_w))
1975 return;
1976
1977 signals [signum - 1].pending = 1;
1978 evpipe_write (EV_A_ &sig_pending);
1979}
1980
1292static void 1981static void
1293ev_sighandler (int signum) 1982ev_sighandler (int signum)
1294{ 1983{
1295#if EV_MULTIPLICITY
1296 EV_P = signals [signum - 1].loop;
1297#endif
1298
1299#if _WIN32 1984#ifdef _WIN32
1300 signal (signum, ev_sighandler); 1985 signal (signum, ev_sighandler);
1301#endif 1986#endif
1302 1987
1303 signals [signum - 1].pending = 1; 1988 ev_feed_signal (signum);
1304 evpipe_write (EV_A_ &sig_pending);
1305} 1989}
1306 1990
1307void noinline 1991void noinline
1308ev_feed_signal_event (EV_P_ int signum) 1992ev_feed_signal_event (EV_P_ int signum) EV_THROW
1309{ 1993{
1310 WL w; 1994 WL w;
1311 1995
1312 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1996 if (expect_false (signum <= 0 || signum > EV_NSIG))
1313 return; 1997 return;
… …
1346 break; 2030 break;
1347 } 2031 }
1348} 2032}
1349#endif 2033#endif
1350 2034
2035#endif
2036
1351/*****************************************************************************/ 2037/*****************************************************************************/
1352 2038
2039#if EV_CHILD_ENABLE
1353static WL childs [EV_PID_HASHSIZE]; 2040static WL childs [EV_PID_HASHSIZE];
1354
1355#ifndef _WIN32
1356 2041
1357static ev_signal childev; 2042static ev_signal childev;
1358 2043
1359#ifndef WIFCONTINUED 2044#ifndef WIFCONTINUED
1360# define WIFCONTINUED(status) 0 2045# define WIFCONTINUED(status) 0
… …
1365child_reap (EV_P_ int chain, int pid, int status) 2050child_reap (EV_P_ int chain, int pid, int status)
1366{ 2051{
1367 ev_child *w; 2052 ev_child *w;
1368 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2053 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1369 2054
1370 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2055 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1371 { 2056 {
1372 if ((w->pid == pid || !w->pid) 2057 if ((w->pid == pid || !w->pid)
1373 && (!traced || (w->flags & 1))) 2058 && (!traced || (w->flags & 1)))
1374 { 2059 {
1375 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2060 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1400 /* make sure we are called again until all children have been reaped */ 2085 /* make sure we are called again until all children have been reaped */
1401 /* we need to do it this way so that the callback gets called before we continue */ 2086 /* we need to do it this way so that the callback gets called before we continue */
1402 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2087 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1403 2088
1404 child_reap (EV_A_ pid, pid, status); 2089 child_reap (EV_A_ pid, pid, status);
1405 if (EV_PID_HASHSIZE > 1) 2090 if ((EV_PID_HASHSIZE) > 1)
1406 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2091 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1407} 2092}
1408 2093
1409#endif 2094#endif
1410 2095
1411/*****************************************************************************/ 2096/*****************************************************************************/
1412 2097
2098#if EV_USE_IOCP
2099# include "ev_iocp.c"
2100#endif
1413#if EV_USE_PORT 2101#if EV_USE_PORT
1414# include "ev_port.c" 2102# include "ev_port.c"
1415#endif 2103#endif
1416#if EV_USE_KQUEUE 2104#if EV_USE_KQUEUE
1417# include "ev_kqueue.c" 2105# include "ev_kqueue.c"
… …
1424#endif 2112#endif
1425#if EV_USE_SELECT 2113#if EV_USE_SELECT
1426# include "ev_select.c" 2114# include "ev_select.c"
1427#endif 2115#endif
1428 2116
1429int 2117int ecb_cold
1430ev_version_major (void) 2118ev_version_major (void) EV_THROW
1431{ 2119{
1432 return EV_VERSION_MAJOR; 2120 return EV_VERSION_MAJOR;
1433} 2121}
1434 2122
1435int 2123int ecb_cold
1436ev_version_minor (void) 2124ev_version_minor (void) EV_THROW
1437{ 2125{
1438 return EV_VERSION_MINOR; 2126 return EV_VERSION_MINOR;
1439} 2127}
1440 2128
1441/* return true if we are running with elevated privileges and should ignore env variables */ 2129/* return true if we are running with elevated privileges and should ignore env variables */
1442int inline_size 2130int inline_size ecb_cold
1443enable_secure (void) 2131enable_secure (void)
1444{ 2132{
1445#ifdef _WIN32 2133#ifdef _WIN32
1446 return 0; 2134 return 0;
1447#else 2135#else
1448 return getuid () != geteuid () 2136 return getuid () != geteuid ()
1449 || getgid () != getegid (); 2137 || getgid () != getegid ();
1450#endif 2138#endif
1451} 2139}
1452 2140
1453unsigned int 2141unsigned int ecb_cold
1454ev_supported_backends (void) 2142ev_supported_backends (void) EV_THROW
1455{ 2143{
1456 unsigned int flags = 0; 2144 unsigned int flags = 0;
1457 2145
1458 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2146 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1459 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2147 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1462 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2150 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1463 2151
1464 return flags; 2152 return flags;
1465} 2153}
1466 2154
1467unsigned int 2155unsigned int ecb_cold
1468ev_recommended_backends (void) 2156ev_recommended_backends (void) EV_THROW
1469{ 2157{
1470 unsigned int flags = ev_supported_backends (); 2158 unsigned int flags = ev_supported_backends ();
1471 2159
1472#ifndef __NetBSD__ 2160#ifndef __NetBSD__
1473 /* kqueue is borked on everything but netbsd apparently */ 2161 /* kqueue is borked on everything but netbsd apparently */
… …
1477#ifdef __APPLE__ 2165#ifdef __APPLE__
1478 /* only select works correctly on that "unix-certified" platform */ 2166 /* only select works correctly on that "unix-certified" platform */
1479 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2167 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1480 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2168 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1481#endif 2169#endif
2170#ifdef __FreeBSD__
2171 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2172#endif
1482 2173
1483 return flags; 2174 return flags;
1484} 2175}
1485 2176
2177unsigned int ecb_cold
2178ev_embeddable_backends (void) EV_THROW
2179{
2180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2181
2182 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2183 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2184 flags &= ~EVBACKEND_EPOLL;
2185
2186 return flags;
2187}
2188
1486unsigned int 2189unsigned int
1487ev_embeddable_backends (void) 2190ev_backend (EV_P) EV_THROW
1488{ 2191{
1489 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2192 return backend;
1490
1491 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1492 /* please fix it and tell me how to detect the fix */
1493 flags &= ~EVBACKEND_EPOLL;
1494
1495 return flags;
1496} 2193}
1497 2194
2195#if EV_FEATURE_API
1498unsigned int 2196unsigned int
1499ev_backend (EV_P) 2197ev_iteration (EV_P) EV_THROW
1500{ 2198{
1501 return backend; 2199 return loop_count;
1502} 2200}
1503 2201
1504#if EV_MINIMAL < 2
1505unsigned int 2202unsigned int
1506ev_loop_count (EV_P) 2203ev_depth (EV_P) EV_THROW
1507{
1508 return loop_count;
1509}
1510
1511unsigned int
1512ev_loop_depth (EV_P)
1513{ 2204{
1514 return loop_depth; 2205 return loop_depth;
1515} 2206}
1516 2207
1517void 2208void
1518ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2209ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1519{ 2210{
1520 io_blocktime = interval; 2211 io_blocktime = interval;
1521} 2212}
1522 2213
1523void 2214void
1524ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2215ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1525{ 2216{
1526 timeout_blocktime = interval; 2217 timeout_blocktime = interval;
1527} 2218}
1528 2219
1529void 2220void
1530ev_set_userdata (EV_P_ void *data) 2221ev_set_userdata (EV_P_ void *data) EV_THROW
1531{ 2222{
1532 userdata = data; 2223 userdata = data;
1533} 2224}
1534 2225
1535void * 2226void *
1536ev_userdata (EV_P) 2227ev_userdata (EV_P) EV_THROW
1537{ 2228{
1538 return userdata; 2229 return userdata;
1539} 2230}
1540 2231
2232void
1541void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2233ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1542{ 2234{
1543 invoke_cb = invoke_pending_cb; 2235 invoke_cb = invoke_pending_cb;
1544} 2236}
1545 2237
2238void
1546void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2239ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1547{ 2240{
1548 release_cb = release; 2241 release_cb = release;
1549 acquire_cb = acquire; 2242 acquire_cb = acquire;
1550} 2243}
1551#endif 2244#endif
1552 2245
1553/* initialise a loop structure, must be zero-initialised */ 2246/* initialise a loop structure, must be zero-initialised */
1554static void noinline 2247static void noinline ecb_cold
1555loop_init (EV_P_ unsigned int flags) 2248loop_init (EV_P_ unsigned int flags) EV_THROW
1556{ 2249{
1557 if (!backend) 2250 if (!backend)
1558 { 2251 {
2252 origflags = flags;
2253
1559#if EV_USE_REALTIME 2254#if EV_USE_REALTIME
1560 if (!have_realtime) 2255 if (!have_realtime)
1561 { 2256 {
1562 struct timespec ts; 2257 struct timespec ts;
1563 2258
… …
1585 if (!(flags & EVFLAG_NOENV) 2280 if (!(flags & EVFLAG_NOENV)
1586 && !enable_secure () 2281 && !enable_secure ()
1587 && getenv ("LIBEV_FLAGS")) 2282 && getenv ("LIBEV_FLAGS"))
1588 flags = atoi (getenv ("LIBEV_FLAGS")); 2283 flags = atoi (getenv ("LIBEV_FLAGS"));
1589 2284
1590 ev_rt_now = ev_time (); 2285 ev_rt_now = ev_time ();
1591 mn_now = get_clock (); 2286 mn_now = get_clock ();
1592 now_floor = mn_now; 2287 now_floor = mn_now;
1593 rtmn_diff = ev_rt_now - mn_now; 2288 rtmn_diff = ev_rt_now - mn_now;
1594#if EV_MINIMAL < 2 2289#if EV_FEATURE_API
1595 invoke_cb = ev_invoke_pending; 2290 invoke_cb = ev_invoke_pending;
1596#endif 2291#endif
1597 2292
1598 io_blocktime = 0.; 2293 io_blocktime = 0.;
1599 timeout_blocktime = 0.; 2294 timeout_blocktime = 0.;
1600 backend = 0; 2295 backend = 0;
1601 backend_fd = -1; 2296 backend_fd = -1;
1602 sig_pending = 0; 2297 sig_pending = 0;
1603#if EV_ASYNC_ENABLE 2298#if EV_ASYNC_ENABLE
1604 async_pending = 0; 2299 async_pending = 0;
1605#endif 2300#endif
2301 pipe_write_skipped = 0;
2302 pipe_write_wanted = 0;
1606#if EV_USE_INOTIFY 2303#if EV_USE_INOTIFY
1607 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2304 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1608#endif 2305#endif
1609#if EV_USE_SIGNALFD 2306#if EV_USE_SIGNALFD
1610 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; 2307 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1611#endif 2308#endif
1612 2309
1613 if (!(flags & 0x0000ffffU)) 2310 if (!(flags & EVBACKEND_MASK))
1614 flags |= ev_recommended_backends (); 2311 flags |= ev_recommended_backends ();
1615 2312
2313#if EV_USE_IOCP
2314 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2315#endif
1616#if EV_USE_PORT 2316#if EV_USE_PORT
1617 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1618#endif 2318#endif
1619#if EV_USE_KQUEUE 2319#if EV_USE_KQUEUE
1620 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1629 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2329 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1630#endif 2330#endif
1631 2331
1632 ev_prepare_init (&pending_w, pendingcb); 2332 ev_prepare_init (&pending_w, pendingcb);
1633 2333
2334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1634 ev_init (&pipe_w, pipecb); 2335 ev_init (&pipe_w, pipecb);
1635 ev_set_priority (&pipe_w, EV_MAXPRI); 2336 ev_set_priority (&pipe_w, EV_MAXPRI);
2337#endif
1636 } 2338 }
1637} 2339}
1638 2340
1639/* free up a loop structure */ 2341/* free up a loop structure */
1640static void noinline 2342void ecb_cold
1641loop_destroy (EV_P) 2343ev_loop_destroy (EV_P)
1642{ 2344{
1643 int i; 2345 int i;
2346
2347#if EV_MULTIPLICITY
2348 /* mimic free (0) */
2349 if (!EV_A)
2350 return;
2351#endif
2352
2353#if EV_CLEANUP_ENABLE
2354 /* queue cleanup watchers (and execute them) */
2355 if (expect_false (cleanupcnt))
2356 {
2357 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2358 EV_INVOKE_PENDING;
2359 }
2360#endif
2361
2362#if EV_CHILD_ENABLE
2363 if (ev_is_active (&childev))
2364 {
2365 ev_ref (EV_A); /* child watcher */
2366 ev_signal_stop (EV_A_ &childev);
2367 }
2368#endif
1644 2369
1645 if (ev_is_active (&pipe_w)) 2370 if (ev_is_active (&pipe_w))
1646 { 2371 {
1647 /*ev_ref (EV_A);*/ 2372 /*ev_ref (EV_A);*/
1648 /*ev_io_stop (EV_A_ &pipe_w);*/ 2373 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1659 } 2384 }
1660 } 2385 }
1661 2386
1662#if EV_USE_SIGNALFD 2387#if EV_USE_SIGNALFD
1663 if (ev_is_active (&sigfd_w)) 2388 if (ev_is_active (&sigfd_w))
1664 {
1665 /*ev_ref (EV_A);*/
1666 /*ev_io_stop (EV_A_ &sigfd_w);*/
1667
1668 close (sigfd); 2389 close (sigfd);
1669 }
1670#endif 2390#endif
1671 2391
1672#if EV_USE_INOTIFY 2392#if EV_USE_INOTIFY
1673 if (fs_fd >= 0) 2393 if (fs_fd >= 0)
1674 close (fs_fd); 2394 close (fs_fd);
1675#endif 2395#endif
1676 2396
1677 if (backend_fd >= 0) 2397 if (backend_fd >= 0)
1678 close (backend_fd); 2398 close (backend_fd);
1679 2399
2400#if EV_USE_IOCP
2401 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2402#endif
1680#if EV_USE_PORT 2403#if EV_USE_PORT
1681 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2404 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1682#endif 2405#endif
1683#if EV_USE_KQUEUE 2406#if EV_USE_KQUEUE
1684 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2407 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1711 array_free (periodic, EMPTY); 2434 array_free (periodic, EMPTY);
1712#endif 2435#endif
1713#if EV_FORK_ENABLE 2436#if EV_FORK_ENABLE
1714 array_free (fork, EMPTY); 2437 array_free (fork, EMPTY);
1715#endif 2438#endif
2439#if EV_CLEANUP_ENABLE
2440 array_free (cleanup, EMPTY);
2441#endif
1716 array_free (prepare, EMPTY); 2442 array_free (prepare, EMPTY);
1717 array_free (check, EMPTY); 2443 array_free (check, EMPTY);
1718#if EV_ASYNC_ENABLE 2444#if EV_ASYNC_ENABLE
1719 array_free (async, EMPTY); 2445 array_free (async, EMPTY);
1720#endif 2446#endif
1721 2447
1722 backend = 0; 2448 backend = 0;
2449
2450#if EV_MULTIPLICITY
2451 if (ev_is_default_loop (EV_A))
2452#endif
2453 ev_default_loop_ptr = 0;
2454#if EV_MULTIPLICITY
2455 else
2456 ev_free (EV_A);
2457#endif
1723} 2458}
1724 2459
1725#if EV_USE_INOTIFY 2460#if EV_USE_INOTIFY
1726inline_size void infy_fork (EV_P); 2461inline_size void infy_fork (EV_P);
1727#endif 2462#endif
… …
1742 infy_fork (EV_A); 2477 infy_fork (EV_A);
1743#endif 2478#endif
1744 2479
1745 if (ev_is_active (&pipe_w)) 2480 if (ev_is_active (&pipe_w))
1746 { 2481 {
1747 /* this "locks" the handlers against writing to the pipe */ 2482 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1748 /* while we modify the fd vars */
1749 sig_pending = 1;
1750#if EV_ASYNC_ENABLE
1751 async_pending = 1;
1752#endif
1753 2483
1754 ev_ref (EV_A); 2484 ev_ref (EV_A);
1755 ev_io_stop (EV_A_ &pipe_w); 2485 ev_io_stop (EV_A_ &pipe_w);
1756 2486
1757#if EV_USE_EVENTFD 2487#if EV_USE_EVENTFD
… …
1763 { 2493 {
1764 EV_WIN32_CLOSE_FD (evpipe [0]); 2494 EV_WIN32_CLOSE_FD (evpipe [0]);
1765 EV_WIN32_CLOSE_FD (evpipe [1]); 2495 EV_WIN32_CLOSE_FD (evpipe [1]);
1766 } 2496 }
1767 2497
2498#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1768 evpipe_init (EV_A); 2499 evpipe_init (EV_A);
1769 /* now iterate over everything, in case we missed something */ 2500 /* now iterate over everything, in case we missed something */
1770 pipecb (EV_A_ &pipe_w, EV_READ); 2501 pipecb (EV_A_ &pipe_w, EV_READ);
2502#endif
1771 } 2503 }
1772 2504
1773 postfork = 0; 2505 postfork = 0;
1774} 2506}
1775 2507
1776#if EV_MULTIPLICITY 2508#if EV_MULTIPLICITY
1777 2509
1778struct ev_loop * 2510struct ev_loop * ecb_cold
1779ev_loop_new (unsigned int flags) 2511ev_loop_new (unsigned int flags) EV_THROW
1780{ 2512{
1781 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2513 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1782 2514
1783 memset (EV_A, 0, sizeof (struct ev_loop)); 2515 memset (EV_A, 0, sizeof (struct ev_loop));
1784 loop_init (EV_A_ flags); 2516 loop_init (EV_A_ flags);
1785 2517
1786 if (ev_backend (EV_A)) 2518 if (ev_backend (EV_A))
1787 return EV_A; 2519 return EV_A;
1788 2520
2521 ev_free (EV_A);
1789 return 0; 2522 return 0;
1790} 2523}
1791 2524
1792void
1793ev_loop_destroy (EV_P)
1794{
1795 loop_destroy (EV_A);
1796 ev_free (loop);
1797}
1798
1799void
1800ev_loop_fork (EV_P)
1801{
1802 postfork = 1; /* must be in line with ev_default_fork */
1803}
1804#endif /* multiplicity */ 2525#endif /* multiplicity */
1805 2526
1806#if EV_VERIFY 2527#if EV_VERIFY
1807static void noinline 2528static void noinline ecb_cold
1808verify_watcher (EV_P_ W w) 2529verify_watcher (EV_P_ W w)
1809{ 2530{
1810 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2531 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1811 2532
1812 if (w->pending) 2533 if (w->pending)
1813 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2534 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1814} 2535}
1815 2536
1816static void noinline 2537static void noinline ecb_cold
1817verify_heap (EV_P_ ANHE *heap, int N) 2538verify_heap (EV_P_ ANHE *heap, int N)
1818{ 2539{
1819 int i; 2540 int i;
1820 2541
1821 for (i = HEAP0; i < N + HEAP0; ++i) 2542 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1826 2547
1827 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2548 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1828 } 2549 }
1829} 2550}
1830 2551
1831static void noinline 2552static void noinline ecb_cold
1832array_verify (EV_P_ W *ws, int cnt) 2553array_verify (EV_P_ W *ws, int cnt)
1833{ 2554{
1834 while (cnt--) 2555 while (cnt--)
1835 { 2556 {
1836 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2557 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1837 verify_watcher (EV_A_ ws [cnt]); 2558 verify_watcher (EV_A_ ws [cnt]);
1838 } 2559 }
1839} 2560}
1840#endif 2561#endif
1841 2562
1842#if EV_MINIMAL < 2 2563#if EV_FEATURE_API
1843void 2564void ecb_cold
1844ev_loop_verify (EV_P) 2565ev_verify (EV_P) EV_THROW
1845{ 2566{
1846#if EV_VERIFY 2567#if EV_VERIFY
1847 int i; 2568 int i;
1848 WL w; 2569 WL w, w2;
1849 2570
1850 assert (activecnt >= -1); 2571 assert (activecnt >= -1);
1851 2572
1852 assert (fdchangemax >= fdchangecnt); 2573 assert (fdchangemax >= fdchangecnt);
1853 for (i = 0; i < fdchangecnt; ++i) 2574 for (i = 0; i < fdchangecnt; ++i)
1854 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2575 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1855 2576
1856 assert (anfdmax >= 0); 2577 assert (anfdmax >= 0);
1857 for (i = 0; i < anfdmax; ++i) 2578 for (i = 0; i < anfdmax; ++i)
2579 {
2580 int j = 0;
2581
1858 for (w = anfds [i].head; w; w = w->next) 2582 for (w = w2 = anfds [i].head; w; w = w->next)
1859 { 2583 {
1860 verify_watcher (EV_A_ (W)w); 2584 verify_watcher (EV_A_ (W)w);
2585
2586 if (j++ & 1)
2587 {
2588 assert (("libev: io watcher list contains a loop", w != w2));
2589 w2 = w2->next;
2590 }
2591
1861 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2592 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1862 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2593 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1863 } 2594 }
2595 }
1864 2596
1865 assert (timermax >= timercnt); 2597 assert (timermax >= timercnt);
1866 verify_heap (EV_A_ timers, timercnt); 2598 verify_heap (EV_A_ timers, timercnt);
1867 2599
1868#if EV_PERIODIC_ENABLE 2600#if EV_PERIODIC_ENABLE
… …
1883#if EV_FORK_ENABLE 2615#if EV_FORK_ENABLE
1884 assert (forkmax >= forkcnt); 2616 assert (forkmax >= forkcnt);
1885 array_verify (EV_A_ (W *)forks, forkcnt); 2617 array_verify (EV_A_ (W *)forks, forkcnt);
1886#endif 2618#endif
1887 2619
2620#if EV_CLEANUP_ENABLE
2621 assert (cleanupmax >= cleanupcnt);
2622 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2623#endif
2624
1888#if EV_ASYNC_ENABLE 2625#if EV_ASYNC_ENABLE
1889 assert (asyncmax >= asynccnt); 2626 assert (asyncmax >= asynccnt);
1890 array_verify (EV_A_ (W *)asyncs, asynccnt); 2627 array_verify (EV_A_ (W *)asyncs, asynccnt);
1891#endif 2628#endif
1892 2629
2630#if EV_PREPARE_ENABLE
1893 assert (preparemax >= preparecnt); 2631 assert (preparemax >= preparecnt);
1894 array_verify (EV_A_ (W *)prepares, preparecnt); 2632 array_verify (EV_A_ (W *)prepares, preparecnt);
2633#endif
1895 2634
2635#if EV_CHECK_ENABLE
1896 assert (checkmax >= checkcnt); 2636 assert (checkmax >= checkcnt);
1897 array_verify (EV_A_ (W *)checks, checkcnt); 2637 array_verify (EV_A_ (W *)checks, checkcnt);
2638#endif
1898 2639
1899# if 0 2640# if 0
2641#if EV_CHILD_ENABLE
1900 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2642 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1901 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2643 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2644#endif
1902# endif 2645# endif
1903#endif 2646#endif
1904} 2647}
1905#endif 2648#endif
1906 2649
1907#if EV_MULTIPLICITY 2650#if EV_MULTIPLICITY
1908struct ev_loop * 2651struct ev_loop * ecb_cold
1909ev_default_loop_init (unsigned int flags)
1910#else 2652#else
1911int 2653int
2654#endif
1912ev_default_loop (unsigned int flags) 2655ev_default_loop (unsigned int flags) EV_THROW
1913#endif
1914{ 2656{
1915 if (!ev_default_loop_ptr) 2657 if (!ev_default_loop_ptr)
1916 { 2658 {
1917#if EV_MULTIPLICITY 2659#if EV_MULTIPLICITY
1918 EV_P = ev_default_loop_ptr = &default_loop_struct; 2660 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1922 2664
1923 loop_init (EV_A_ flags); 2665 loop_init (EV_A_ flags);
1924 2666
1925 if (ev_backend (EV_A)) 2667 if (ev_backend (EV_A))
1926 { 2668 {
1927#ifndef _WIN32 2669#if EV_CHILD_ENABLE
1928 ev_signal_init (&childev, childcb, SIGCHLD); 2670 ev_signal_init (&childev, childcb, SIGCHLD);
1929 ev_set_priority (&childev, EV_MAXPRI); 2671 ev_set_priority (&childev, EV_MAXPRI);
1930 ev_signal_start (EV_A_ &childev); 2672 ev_signal_start (EV_A_ &childev);
1931 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2673 ev_unref (EV_A); /* child watcher should not keep loop alive */
1932#endif 2674#endif
… …
1937 2679
1938 return ev_default_loop_ptr; 2680 return ev_default_loop_ptr;
1939} 2681}
1940 2682
1941void 2683void
1942ev_default_destroy (void) 2684ev_loop_fork (EV_P) EV_THROW
1943{ 2685{
1944#if EV_MULTIPLICITY
1945 EV_P = ev_default_loop_ptr;
1946#endif
1947
1948 ev_default_loop_ptr = 0;
1949
1950#ifndef _WIN32
1951 ev_ref (EV_A); /* child watcher */
1952 ev_signal_stop (EV_A_ &childev);
1953#endif
1954
1955 loop_destroy (EV_A);
1956}
1957
1958void
1959ev_default_fork (void)
1960{
1961#if EV_MULTIPLICITY
1962 EV_P = ev_default_loop_ptr;
1963#endif
1964
1965 postfork = 1; /* must be in line with ev_loop_fork */ 2686 postfork = 1; /* must be in line with ev_default_fork */
1966} 2687}
1967 2688
1968/*****************************************************************************/ 2689/*****************************************************************************/
1969 2690
1970void 2691void
… …
1972{ 2693{
1973 EV_CB_INVOKE ((W)w, revents); 2694 EV_CB_INVOKE ((W)w, revents);
1974} 2695}
1975 2696
1976unsigned int 2697unsigned int
1977ev_pending_count (EV_P) 2698ev_pending_count (EV_P) EV_THROW
1978{ 2699{
1979 int pri; 2700 int pri;
1980 unsigned int count = 0; 2701 unsigned int count = 0;
1981 2702
1982 for (pri = NUMPRI; pri--; ) 2703 for (pri = NUMPRI; pri--; )
… …
1986} 2707}
1987 2708
1988void noinline 2709void noinline
1989ev_invoke_pending (EV_P) 2710ev_invoke_pending (EV_P)
1990{ 2711{
1991 int pri; 2712 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1992
1993 for (pri = NUMPRI; pri--; )
1994 while (pendingcnt [pri]) 2713 while (pendingcnt [pendingpri])
1995 { 2714 {
1996 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2715 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1997
1998 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1999 /* ^ this is no longer true, as pending_w could be here */
2000 2716
2001 p->w->pending = 0; 2717 p->w->pending = 0;
2002 EV_CB_INVOKE (p->w, p->events); 2718 EV_CB_INVOKE (p->w, p->events);
2003 EV_FREQUENT_CHECK; 2719 EV_FREQUENT_CHECK;
2004 } 2720 }
… …
2061 EV_FREQUENT_CHECK; 2777 EV_FREQUENT_CHECK;
2062 feed_reverse (EV_A_ (W)w); 2778 feed_reverse (EV_A_ (W)w);
2063 } 2779 }
2064 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2780 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2065 2781
2066 feed_reverse_done (EV_A_ EV_TIMEOUT); 2782 feed_reverse_done (EV_A_ EV_TIMER);
2067 } 2783 }
2068} 2784}
2069 2785
2070#if EV_PERIODIC_ENABLE 2786#if EV_PERIODIC_ENABLE
2787
2788static void noinline
2789periodic_recalc (EV_P_ ev_periodic *w)
2790{
2791 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2792 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2793
2794 /* the above almost always errs on the low side */
2795 while (at <= ev_rt_now)
2796 {
2797 ev_tstamp nat = at + w->interval;
2798
2799 /* when resolution fails us, we use ev_rt_now */
2800 if (expect_false (nat == at))
2801 {
2802 at = ev_rt_now;
2803 break;
2804 }
2805
2806 at = nat;
2807 }
2808
2809 ev_at (w) = at;
2810}
2811
2071/* make periodics pending */ 2812/* make periodics pending */
2072inline_size void 2813inline_size void
2073periodics_reify (EV_P) 2814periodics_reify (EV_P)
2074{ 2815{
2075 EV_FREQUENT_CHECK; 2816 EV_FREQUENT_CHECK;
… …
2094 ANHE_at_cache (periodics [HEAP0]); 2835 ANHE_at_cache (periodics [HEAP0]);
2095 downheap (periodics, periodiccnt, HEAP0); 2836 downheap (periodics, periodiccnt, HEAP0);
2096 } 2837 }
2097 else if (w->interval) 2838 else if (w->interval)
2098 { 2839 {
2099 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2840 periodic_recalc (EV_A_ w);
2100 /* if next trigger time is not sufficiently in the future, put it there */
2101 /* this might happen because of floating point inexactness */
2102 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2103 {
2104 ev_at (w) += w->interval;
2105
2106 /* if interval is unreasonably low we might still have a time in the past */
2107 /* so correct this. this will make the periodic very inexact, but the user */
2108 /* has effectively asked to get triggered more often than possible */
2109 if (ev_at (w) < ev_rt_now)
2110 ev_at (w) = ev_rt_now;
2111 }
2112
2113 ANHE_at_cache (periodics [HEAP0]); 2841 ANHE_at_cache (periodics [HEAP0]);
2114 downheap (periodics, periodiccnt, HEAP0); 2842 downheap (periodics, periodiccnt, HEAP0);
2115 } 2843 }
2116 else 2844 else
2117 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2845 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2124 feed_reverse_done (EV_A_ EV_PERIODIC); 2852 feed_reverse_done (EV_A_ EV_PERIODIC);
2125 } 2853 }
2126} 2854}
2127 2855
2128/* simply recalculate all periodics */ 2856/* simply recalculate all periodics */
2129/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2857/* TODO: maybe ensure that at least one event happens when jumping forward? */
2130static void noinline 2858static void noinline ecb_cold
2131periodics_reschedule (EV_P) 2859periodics_reschedule (EV_P)
2132{ 2860{
2133 int i; 2861 int i;
2134 2862
2135 /* adjust periodics after time jump */ 2863 /* adjust periodics after time jump */
… …
2138 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2866 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2139 2867
2140 if (w->reschedule_cb) 2868 if (w->reschedule_cb)
2141 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2869 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2142 else if (w->interval) 2870 else if (w->interval)
2143 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2871 periodic_recalc (EV_A_ w);
2144 2872
2145 ANHE_at_cache (periodics [i]); 2873 ANHE_at_cache (periodics [i]);
2146 } 2874 }
2147 2875
2148 reheap (periodics, periodiccnt); 2876 reheap (periodics, periodiccnt);
2149} 2877}
2150#endif 2878#endif
2151 2879
2152/* adjust all timers by a given offset */ 2880/* adjust all timers by a given offset */
2153static void noinline 2881static void noinline ecb_cold
2154timers_reschedule (EV_P_ ev_tstamp adjust) 2882timers_reschedule (EV_P_ ev_tstamp adjust)
2155{ 2883{
2156 int i; 2884 int i;
2157 2885
2158 for (i = 0; i < timercnt; ++i) 2886 for (i = 0; i < timercnt; ++i)
… …
2162 ANHE_at_cache (*he); 2890 ANHE_at_cache (*he);
2163 } 2891 }
2164} 2892}
2165 2893
2166/* fetch new monotonic and realtime times from the kernel */ 2894/* fetch new monotonic and realtime times from the kernel */
2167/* also detetc if there was a timejump, and act accordingly */ 2895/* also detect if there was a timejump, and act accordingly */
2168inline_speed void 2896inline_speed void
2169time_update (EV_P_ ev_tstamp max_block) 2897time_update (EV_P_ ev_tstamp max_block)
2170{ 2898{
2171#if EV_USE_MONOTONIC 2899#if EV_USE_MONOTONIC
2172 if (expect_true (have_monotonic)) 2900 if (expect_true (have_monotonic))
… …
2195 * doesn't hurt either as we only do this on time-jumps or 2923 * doesn't hurt either as we only do this on time-jumps or
2196 * in the unlikely event of having been preempted here. 2924 * in the unlikely event of having been preempted here.
2197 */ 2925 */
2198 for (i = 4; --i; ) 2926 for (i = 4; --i; )
2199 { 2927 {
2928 ev_tstamp diff;
2200 rtmn_diff = ev_rt_now - mn_now; 2929 rtmn_diff = ev_rt_now - mn_now;
2201 2930
2931 diff = odiff - rtmn_diff;
2932
2202 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2933 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2203 return; /* all is well */ 2934 return; /* all is well */
2204 2935
2205 ev_rt_now = ev_time (); 2936 ev_rt_now = ev_time ();
2206 mn_now = get_clock (); 2937 mn_now = get_clock ();
2207 now_floor = mn_now; 2938 now_floor = mn_now;
… …
2229 2960
2230 mn_now = ev_rt_now; 2961 mn_now = ev_rt_now;
2231 } 2962 }
2232} 2963}
2233 2964
2234void 2965int
2235ev_loop (EV_P_ int flags) 2966ev_run (EV_P_ int flags)
2236{ 2967{
2237#if EV_MINIMAL < 2 2968#if EV_FEATURE_API
2238 ++loop_depth; 2969 ++loop_depth;
2239#endif 2970#endif
2240 2971
2241 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2972 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2242 2973
2243 loop_done = EVUNLOOP_CANCEL; 2974 loop_done = EVBREAK_CANCEL;
2244 2975
2245 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2976 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2246 2977
2247 do 2978 do
2248 { 2979 {
2249#if EV_VERIFY >= 2 2980#if EV_VERIFY >= 2
2250 ev_loop_verify (EV_A); 2981 ev_verify (EV_A);
2251#endif 2982#endif
2252 2983
2253#ifndef _WIN32 2984#ifndef _WIN32
2254 if (expect_false (curpid)) /* penalise the forking check even more */ 2985 if (expect_false (curpid)) /* penalise the forking check even more */
2255 if (expect_false (getpid () != curpid)) 2986 if (expect_false (getpid () != curpid))
… …
2267 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2998 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2268 EV_INVOKE_PENDING; 2999 EV_INVOKE_PENDING;
2269 } 3000 }
2270#endif 3001#endif
2271 3002
3003#if EV_PREPARE_ENABLE
2272 /* queue prepare watchers (and execute them) */ 3004 /* queue prepare watchers (and execute them) */
2273 if (expect_false (preparecnt)) 3005 if (expect_false (preparecnt))
2274 { 3006 {
2275 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3007 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2276 EV_INVOKE_PENDING; 3008 EV_INVOKE_PENDING;
2277 } 3009 }
3010#endif
2278 3011
2279 if (expect_false (loop_done)) 3012 if (expect_false (loop_done))
2280 break; 3013 break;
2281 3014
2282 /* we might have forked, so reify kernel state if necessary */ 3015 /* we might have forked, so reify kernel state if necessary */
… …
2289 /* calculate blocking time */ 3022 /* calculate blocking time */
2290 { 3023 {
2291 ev_tstamp waittime = 0.; 3024 ev_tstamp waittime = 0.;
2292 ev_tstamp sleeptime = 0.; 3025 ev_tstamp sleeptime = 0.;
2293 3026
3027 /* remember old timestamp for io_blocktime calculation */
3028 ev_tstamp prev_mn_now = mn_now;
3029
3030 /* update time to cancel out callback processing overhead */
3031 time_update (EV_A_ 1e100);
3032
3033 /* from now on, we want a pipe-wake-up */
3034 pipe_write_wanted = 1;
3035
3036 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3037
2294 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3038 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2295 { 3039 {
2296 /* remember old timestamp for io_blocktime calculation */
2297 ev_tstamp prev_mn_now = mn_now;
2298
2299 /* update time to cancel out callback processing overhead */
2300 time_update (EV_A_ 1e100);
2301
2302 waittime = MAX_BLOCKTIME; 3040 waittime = MAX_BLOCKTIME;
2303 3041
2304 if (timercnt) 3042 if (timercnt)
2305 { 3043 {
2306 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3044 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2307 if (waittime > to) waittime = to; 3045 if (waittime > to) waittime = to;
2308 } 3046 }
2309 3047
2310#if EV_PERIODIC_ENABLE 3048#if EV_PERIODIC_ENABLE
2311 if (periodiccnt) 3049 if (periodiccnt)
2312 { 3050 {
2313 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3051 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2314 if (waittime > to) waittime = to; 3052 if (waittime > to) waittime = to;
2315 } 3053 }
2316#endif 3054#endif
2317 3055
2318 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3056 /* don't let timeouts decrease the waittime below timeout_blocktime */
2319 if (expect_false (waittime < timeout_blocktime)) 3057 if (expect_false (waittime < timeout_blocktime))
2320 waittime = timeout_blocktime; 3058 waittime = timeout_blocktime;
3059
3060 /* at this point, we NEED to wait, so we have to ensure */
3061 /* to pass a minimum nonzero value to the backend */
3062 if (expect_false (waittime < backend_mintime))
3063 waittime = backend_mintime;
2321 3064
2322 /* extra check because io_blocktime is commonly 0 */ 3065 /* extra check because io_blocktime is commonly 0 */
2323 if (expect_false (io_blocktime)) 3066 if (expect_false (io_blocktime))
2324 { 3067 {
2325 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3068 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2326 3069
2327 if (sleeptime > waittime - backend_fudge) 3070 if (sleeptime > waittime - backend_mintime)
2328 sleeptime = waittime - backend_fudge; 3071 sleeptime = waittime - backend_mintime;
2329 3072
2330 if (expect_true (sleeptime > 0.)) 3073 if (expect_true (sleeptime > 0.))
2331 { 3074 {
2332 ev_sleep (sleeptime); 3075 ev_sleep (sleeptime);
2333 waittime -= sleeptime; 3076 waittime -= sleeptime;
2334 } 3077 }
2335 } 3078 }
2336 } 3079 }
2337 3080
2338#if EV_MINIMAL < 2 3081#if EV_FEATURE_API
2339 ++loop_count; 3082 ++loop_count;
2340#endif 3083#endif
2341 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3084 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2342 backend_poll (EV_A_ waittime); 3085 backend_poll (EV_A_ waittime);
2343 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3086 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3087
3088 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3089
3090 if (pipe_write_skipped)
3091 {
3092 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3093 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3094 }
3095
2344 3096
2345 /* update ev_rt_now, do magic */ 3097 /* update ev_rt_now, do magic */
2346 time_update (EV_A_ waittime + sleeptime); 3098 time_update (EV_A_ waittime + sleeptime);
2347 } 3099 }
2348 3100
… …
2355#if EV_IDLE_ENABLE 3107#if EV_IDLE_ENABLE
2356 /* queue idle watchers unless other events are pending */ 3108 /* queue idle watchers unless other events are pending */
2357 idle_reify (EV_A); 3109 idle_reify (EV_A);
2358#endif 3110#endif
2359 3111
3112#if EV_CHECK_ENABLE
2360 /* queue check watchers, to be executed first */ 3113 /* queue check watchers, to be executed first */
2361 if (expect_false (checkcnt)) 3114 if (expect_false (checkcnt))
2362 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3115 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3116#endif
2363 3117
2364 EV_INVOKE_PENDING; 3118 EV_INVOKE_PENDING;
2365 } 3119 }
2366 while (expect_true ( 3120 while (expect_true (
2367 activecnt 3121 activecnt
2368 && !loop_done 3122 && !loop_done
2369 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3123 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2370 )); 3124 ));
2371 3125
2372 if (loop_done == EVUNLOOP_ONE) 3126 if (loop_done == EVBREAK_ONE)
2373 loop_done = EVUNLOOP_CANCEL; 3127 loop_done = EVBREAK_CANCEL;
2374 3128
2375#if EV_MINIMAL < 2 3129#if EV_FEATURE_API
2376 --loop_depth; 3130 --loop_depth;
2377#endif 3131#endif
3132
3133 return activecnt;
2378} 3134}
2379 3135
2380void 3136void
2381ev_unloop (EV_P_ int how) 3137ev_break (EV_P_ int how) EV_THROW
2382{ 3138{
2383 loop_done = how; 3139 loop_done = how;
2384} 3140}
2385 3141
2386void 3142void
2387ev_ref (EV_P) 3143ev_ref (EV_P) EV_THROW
2388{ 3144{
2389 ++activecnt; 3145 ++activecnt;
2390} 3146}
2391 3147
2392void 3148void
2393ev_unref (EV_P) 3149ev_unref (EV_P) EV_THROW
2394{ 3150{
2395 --activecnt; 3151 --activecnt;
2396} 3152}
2397 3153
2398void 3154void
2399ev_now_update (EV_P) 3155ev_now_update (EV_P) EV_THROW
2400{ 3156{
2401 time_update (EV_A_ 1e100); 3157 time_update (EV_A_ 1e100);
2402} 3158}
2403 3159
2404void 3160void
2405ev_suspend (EV_P) 3161ev_suspend (EV_P) EV_THROW
2406{ 3162{
2407 ev_now_update (EV_A); 3163 ev_now_update (EV_A);
2408} 3164}
2409 3165
2410void 3166void
2411ev_resume (EV_P) 3167ev_resume (EV_P) EV_THROW
2412{ 3168{
2413 ev_tstamp mn_prev = mn_now; 3169 ev_tstamp mn_prev = mn_now;
2414 3170
2415 ev_now_update (EV_A); 3171 ev_now_update (EV_A);
2416 timers_reschedule (EV_A_ mn_now - mn_prev); 3172 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2455 w->pending = 0; 3211 w->pending = 0;
2456 } 3212 }
2457} 3213}
2458 3214
2459int 3215int
2460ev_clear_pending (EV_P_ void *w) 3216ev_clear_pending (EV_P_ void *w) EV_THROW
2461{ 3217{
2462 W w_ = (W)w; 3218 W w_ = (W)w;
2463 int pending = w_->pending; 3219 int pending = w_->pending;
2464 3220
2465 if (expect_true (pending)) 3221 if (expect_true (pending))
… …
2498} 3254}
2499 3255
2500/*****************************************************************************/ 3256/*****************************************************************************/
2501 3257
2502void noinline 3258void noinline
2503ev_io_start (EV_P_ ev_io *w) 3259ev_io_start (EV_P_ ev_io *w) EV_THROW
2504{ 3260{
2505 int fd = w->fd; 3261 int fd = w->fd;
2506 3262
2507 if (expect_false (ev_is_active (w))) 3263 if (expect_false (ev_is_active (w)))
2508 return; 3264 return;
2509 3265
2510 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3266 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2511 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3267 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2512 3268
2513 EV_FREQUENT_CHECK; 3269 EV_FREQUENT_CHECK;
2514 3270
2515 ev_start (EV_A_ (W)w, 1); 3271 ev_start (EV_A_ (W)w, 1);
2516 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3272 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2517 wlist_add (&anfds[fd].head, (WL)w); 3273 wlist_add (&anfds[fd].head, (WL)w);
2518 3274
3275 /* common bug, apparently */
3276 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3277
2519 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3278 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2520 w->events &= ~EV__IOFDSET; 3279 w->events &= ~EV__IOFDSET;
2521 3280
2522 EV_FREQUENT_CHECK; 3281 EV_FREQUENT_CHECK;
2523} 3282}
2524 3283
2525void noinline 3284void noinline
2526ev_io_stop (EV_P_ ev_io *w) 3285ev_io_stop (EV_P_ ev_io *w) EV_THROW
2527{ 3286{
2528 clear_pending (EV_A_ (W)w); 3287 clear_pending (EV_A_ (W)w);
2529 if (expect_false (!ev_is_active (w))) 3288 if (expect_false (!ev_is_active (w)))
2530 return; 3289 return;
2531 3290
… …
2534 EV_FREQUENT_CHECK; 3293 EV_FREQUENT_CHECK;
2535 3294
2536 wlist_del (&anfds[w->fd].head, (WL)w); 3295 wlist_del (&anfds[w->fd].head, (WL)w);
2537 ev_stop (EV_A_ (W)w); 3296 ev_stop (EV_A_ (W)w);
2538 3297
2539 fd_change (EV_A_ w->fd, 1); 3298 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2540 3299
2541 EV_FREQUENT_CHECK; 3300 EV_FREQUENT_CHECK;
2542} 3301}
2543 3302
2544void noinline 3303void noinline
2545ev_timer_start (EV_P_ ev_timer *w) 3304ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2546{ 3305{
2547 if (expect_false (ev_is_active (w))) 3306 if (expect_false (ev_is_active (w)))
2548 return; 3307 return;
2549 3308
2550 ev_at (w) += mn_now; 3309 ev_at (w) += mn_now;
… …
2564 3323
2565 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3324 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2566} 3325}
2567 3326
2568void noinline 3327void noinline
2569ev_timer_stop (EV_P_ ev_timer *w) 3328ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2570{ 3329{
2571 clear_pending (EV_A_ (W)w); 3330 clear_pending (EV_A_ (W)w);
2572 if (expect_false (!ev_is_active (w))) 3331 if (expect_false (!ev_is_active (w)))
2573 return; 3332 return;
2574 3333
… …
2586 timers [active] = timers [timercnt + HEAP0]; 3345 timers [active] = timers [timercnt + HEAP0];
2587 adjustheap (timers, timercnt, active); 3346 adjustheap (timers, timercnt, active);
2588 } 3347 }
2589 } 3348 }
2590 3349
2591 EV_FREQUENT_CHECK;
2592
2593 ev_at (w) -= mn_now; 3350 ev_at (w) -= mn_now;
2594 3351
2595 ev_stop (EV_A_ (W)w); 3352 ev_stop (EV_A_ (W)w);
3353
3354 EV_FREQUENT_CHECK;
2596} 3355}
2597 3356
2598void noinline 3357void noinline
2599ev_timer_again (EV_P_ ev_timer *w) 3358ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2600{ 3359{
2601 EV_FREQUENT_CHECK; 3360 EV_FREQUENT_CHECK;
3361
3362 clear_pending (EV_A_ (W)w);
2602 3363
2603 if (ev_is_active (w)) 3364 if (ev_is_active (w))
2604 { 3365 {
2605 if (w->repeat) 3366 if (w->repeat)
2606 { 3367 {
… …
2619 3380
2620 EV_FREQUENT_CHECK; 3381 EV_FREQUENT_CHECK;
2621} 3382}
2622 3383
2623ev_tstamp 3384ev_tstamp
2624ev_timer_remaining (EV_P_ ev_timer *w) 3385ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2625{ 3386{
2626 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3387 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2627} 3388}
2628 3389
2629#if EV_PERIODIC_ENABLE 3390#if EV_PERIODIC_ENABLE
2630void noinline 3391void noinline
2631ev_periodic_start (EV_P_ ev_periodic *w) 3392ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2632{ 3393{
2633 if (expect_false (ev_is_active (w))) 3394 if (expect_false (ev_is_active (w)))
2634 return; 3395 return;
2635 3396
2636 if (w->reschedule_cb) 3397 if (w->reschedule_cb)
2637 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3398 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2638 else if (w->interval) 3399 else if (w->interval)
2639 { 3400 {
2640 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3401 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2641 /* this formula differs from the one in periodic_reify because we do not always round up */ 3402 periodic_recalc (EV_A_ w);
2642 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2643 } 3403 }
2644 else 3404 else
2645 ev_at (w) = w->offset; 3405 ev_at (w) = w->offset;
2646 3406
2647 EV_FREQUENT_CHECK; 3407 EV_FREQUENT_CHECK;
… …
2657 3417
2658 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3418 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2659} 3419}
2660 3420
2661void noinline 3421void noinline
2662ev_periodic_stop (EV_P_ ev_periodic *w) 3422ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2663{ 3423{
2664 clear_pending (EV_A_ (W)w); 3424 clear_pending (EV_A_ (W)w);
2665 if (expect_false (!ev_is_active (w))) 3425 if (expect_false (!ev_is_active (w)))
2666 return; 3426 return;
2667 3427
… …
2679 periodics [active] = periodics [periodiccnt + HEAP0]; 3439 periodics [active] = periodics [periodiccnt + HEAP0];
2680 adjustheap (periodics, periodiccnt, active); 3440 adjustheap (periodics, periodiccnt, active);
2681 } 3441 }
2682 } 3442 }
2683 3443
2684 EV_FREQUENT_CHECK;
2685
2686 ev_stop (EV_A_ (W)w); 3444 ev_stop (EV_A_ (W)w);
3445
3446 EV_FREQUENT_CHECK;
2687} 3447}
2688 3448
2689void noinline 3449void noinline
2690ev_periodic_again (EV_P_ ev_periodic *w) 3450ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2691{ 3451{
2692 /* TODO: use adjustheap and recalculation */ 3452 /* TODO: use adjustheap and recalculation */
2693 ev_periodic_stop (EV_A_ w); 3453 ev_periodic_stop (EV_A_ w);
2694 ev_periodic_start (EV_A_ w); 3454 ev_periodic_start (EV_A_ w);
2695} 3455}
… …
2697 3457
2698#ifndef SA_RESTART 3458#ifndef SA_RESTART
2699# define SA_RESTART 0 3459# define SA_RESTART 0
2700#endif 3460#endif
2701 3461
3462#if EV_SIGNAL_ENABLE
3463
2702void noinline 3464void noinline
2703ev_signal_start (EV_P_ ev_signal *w) 3465ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2704{ 3466{
2705 if (expect_false (ev_is_active (w))) 3467 if (expect_false (ev_is_active (w)))
2706 return; 3468 return;
2707 3469
2708 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3470 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2752 if (!((WL)w)->next) 3514 if (!((WL)w)->next)
2753# if EV_USE_SIGNALFD 3515# if EV_USE_SIGNALFD
2754 if (sigfd < 0) /*TODO*/ 3516 if (sigfd < 0) /*TODO*/
2755# endif 3517# endif
2756 { 3518 {
2757# if _WIN32 3519# ifdef _WIN32
3520 evpipe_init (EV_A);
3521
2758 signal (w->signum, ev_sighandler); 3522 signal (w->signum, ev_sighandler);
2759# else 3523# else
2760 struct sigaction sa; 3524 struct sigaction sa;
2761 3525
2762 evpipe_init (EV_A); 3526 evpipe_init (EV_A);
… …
2764 sa.sa_handler = ev_sighandler; 3528 sa.sa_handler = ev_sighandler;
2765 sigfillset (&sa.sa_mask); 3529 sigfillset (&sa.sa_mask);
2766 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3530 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2767 sigaction (w->signum, &sa, 0); 3531 sigaction (w->signum, &sa, 0);
2768 3532
3533 if (origflags & EVFLAG_NOSIGMASK)
3534 {
2769 sigemptyset (&sa.sa_mask); 3535 sigemptyset (&sa.sa_mask);
2770 sigaddset (&sa.sa_mask, w->signum); 3536 sigaddset (&sa.sa_mask, w->signum);
2771 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3537 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3538 }
2772#endif 3539#endif
2773 } 3540 }
2774 3541
2775 EV_FREQUENT_CHECK; 3542 EV_FREQUENT_CHECK;
2776} 3543}
2777 3544
2778void noinline 3545void noinline
2779ev_signal_stop (EV_P_ ev_signal *w) 3546ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2780{ 3547{
2781 clear_pending (EV_A_ (W)w); 3548 clear_pending (EV_A_ (W)w);
2782 if (expect_false (!ev_is_active (w))) 3549 if (expect_false (!ev_is_active (w)))
2783 return; 3550 return;
2784 3551
… …
2793 signals [w->signum - 1].loop = 0; /* unattach from signal */ 3560 signals [w->signum - 1].loop = 0; /* unattach from signal */
2794#endif 3561#endif
2795#if EV_USE_SIGNALFD 3562#if EV_USE_SIGNALFD
2796 if (sigfd >= 0) 3563 if (sigfd >= 0)
2797 { 3564 {
2798 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3565 sigset_t ss;
3566
3567 sigemptyset (&ss);
3568 sigaddset (&ss, w->signum);
2799 sigdelset (&sigfd_set, w->signum); 3569 sigdelset (&sigfd_set, w->signum);
3570
2800 signalfd (sigfd, &sigfd_set, 0); 3571 signalfd (sigfd, &sigfd_set, 0);
2801 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3572 sigprocmask (SIG_UNBLOCK, &ss, 0);
2802 /*TODO: maybe unblock signal? */
2803 } 3573 }
2804 else 3574 else
2805#endif 3575#endif
2806 signal (w->signum, SIG_DFL); 3576 signal (w->signum, SIG_DFL);
2807 } 3577 }
2808 3578
2809 EV_FREQUENT_CHECK; 3579 EV_FREQUENT_CHECK;
2810} 3580}
2811 3581
3582#endif
3583
3584#if EV_CHILD_ENABLE
3585
2812void 3586void
2813ev_child_start (EV_P_ ev_child *w) 3587ev_child_start (EV_P_ ev_child *w) EV_THROW
2814{ 3588{
2815#if EV_MULTIPLICITY 3589#if EV_MULTIPLICITY
2816 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3590 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2817#endif 3591#endif
2818 if (expect_false (ev_is_active (w))) 3592 if (expect_false (ev_is_active (w)))
2819 return; 3593 return;
2820 3594
2821 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
2822 3596
2823 ev_start (EV_A_ (W)w, 1); 3597 ev_start (EV_A_ (W)w, 1);
2824 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3598 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2825 3599
2826 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
2827} 3601}
2828 3602
2829void 3603void
2830ev_child_stop (EV_P_ ev_child *w) 3604ev_child_stop (EV_P_ ev_child *w) EV_THROW
2831{ 3605{
2832 clear_pending (EV_A_ (W)w); 3606 clear_pending (EV_A_ (W)w);
2833 if (expect_false (!ev_is_active (w))) 3607 if (expect_false (!ev_is_active (w)))
2834 return; 3608 return;
2835 3609
2836 EV_FREQUENT_CHECK; 3610 EV_FREQUENT_CHECK;
2837 3611
2838 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3612 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2839 ev_stop (EV_A_ (W)w); 3613 ev_stop (EV_A_ (W)w);
2840 3614
2841 EV_FREQUENT_CHECK; 3615 EV_FREQUENT_CHECK;
2842} 3616}
3617
3618#endif
2843 3619
2844#if EV_STAT_ENABLE 3620#if EV_STAT_ENABLE
2845 3621
2846# ifdef _WIN32 3622# ifdef _WIN32
2847# undef lstat 3623# undef lstat
… …
2853#define MIN_STAT_INTERVAL 0.1074891 3629#define MIN_STAT_INTERVAL 0.1074891
2854 3630
2855static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3631static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2856 3632
2857#if EV_USE_INOTIFY 3633#if EV_USE_INOTIFY
2858# define EV_INOTIFY_BUFSIZE 8192 3634
3635/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3636# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2859 3637
2860static void noinline 3638static void noinline
2861infy_add (EV_P_ ev_stat *w) 3639infy_add (EV_P_ ev_stat *w)
2862{ 3640{
2863 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); 3641 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);
2864 3642
2865 if (w->wd < 0) 3643 if (w->wd >= 0)
3644 {
3645 struct statfs sfs;
3646
3647 /* now local changes will be tracked by inotify, but remote changes won't */
3648 /* unless the filesystem is known to be local, we therefore still poll */
3649 /* also do poll on <2.6.25, but with normal frequency */
3650
3651 if (!fs_2625)
3652 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3653 else if (!statfs (w->path, &sfs)
3654 && (sfs.f_type == 0x1373 /* devfs */
3655 || sfs.f_type == 0xEF53 /* ext2/3 */
3656 || sfs.f_type == 0x3153464a /* jfs */
3657 || sfs.f_type == 0x52654973 /* reiser3 */
3658 || sfs.f_type == 0x01021994 /* tempfs */
3659 || sfs.f_type == 0x58465342 /* xfs */))
3660 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3661 else
3662 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2866 { 3663 }
3664 else
3665 {
3666 /* can't use inotify, continue to stat */
2867 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3667 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2868 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2869 3668
2870 /* monitor some parent directory for speedup hints */ 3669 /* if path is not there, monitor some parent directory for speedup hints */
2871 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3670 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2872 /* but an efficiency issue only */ 3671 /* but an efficiency issue only */
2873 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3672 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2874 { 3673 {
2875 char path [4096]; 3674 char path [4096];
… …
2885 if (!pend || pend == path) 3684 if (!pend || pend == path)
2886 break; 3685 break;
2887 3686
2888 *pend = 0; 3687 *pend = 0;
2889 w->wd = inotify_add_watch (fs_fd, path, mask); 3688 w->wd = inotify_add_watch (fs_fd, path, mask);
2890 } 3689 }
2891 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3690 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2892 } 3691 }
2893 } 3692 }
2894 3693
2895 if (w->wd >= 0) 3694 if (w->wd >= 0)
2896 {
2897 struct statfs sfs;
2898
2899 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3695 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2900 3696
2901 /* now local changes will be tracked by inotify, but remote changes won't */ 3697 /* now re-arm timer, if required */
2902 /* unless the filesystem it known to be local, we therefore still poll */ 3698 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2903 /* also do poll on <2.6.25, but with normal frequency */
2904
2905 if (fs_2625 && !statfs (w->path, &sfs))
2906 if (sfs.f_type == 0x1373 /* devfs */
2907 || sfs.f_type == 0xEF53 /* ext2/3 */
2908 || sfs.f_type == 0x3153464a /* jfs */
2909 || sfs.f_type == 0x52654973 /* reiser3 */
2910 || sfs.f_type == 0x01021994 /* tempfs */
2911 || sfs.f_type == 0x58465342 /* xfs */)
2912 return;
2913
2914 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2915 ev_timer_again (EV_A_ &w->timer); 3699 ev_timer_again (EV_A_ &w->timer);
2916 } 3700 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2917} 3701}
2918 3702
2919static void noinline 3703static void noinline
2920infy_del (EV_P_ ev_stat *w) 3704infy_del (EV_P_ ev_stat *w)
2921{ 3705{
… …
2924 3708
2925 if (wd < 0) 3709 if (wd < 0)
2926 return; 3710 return;
2927 3711
2928 w->wd = -2; 3712 w->wd = -2;
2929 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3713 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2930 wlist_del (&fs_hash [slot].head, (WL)w); 3714 wlist_del (&fs_hash [slot].head, (WL)w);
2931 3715
2932 /* remove this watcher, if others are watching it, they will rearm */ 3716 /* remove this watcher, if others are watching it, they will rearm */
2933 inotify_rm_watch (fs_fd, wd); 3717 inotify_rm_watch (fs_fd, wd);
2934} 3718}
… …
2936static void noinline 3720static void noinline
2937infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3721infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2938{ 3722{
2939 if (slot < 0) 3723 if (slot < 0)
2940 /* overflow, need to check for all hash slots */ 3724 /* overflow, need to check for all hash slots */
2941 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3725 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2942 infy_wd (EV_A_ slot, wd, ev); 3726 infy_wd (EV_A_ slot, wd, ev);
2943 else 3727 else
2944 { 3728 {
2945 WL w_; 3729 WL w_;
2946 3730
2947 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3731 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2948 { 3732 {
2949 ev_stat *w = (ev_stat *)w_; 3733 ev_stat *w = (ev_stat *)w_;
2950 w_ = w_->next; /* lets us remove this watcher and all before it */ 3734 w_ = w_->next; /* lets us remove this watcher and all before it */
2951 3735
2952 if (w->wd == wd || wd == -1) 3736 if (w->wd == wd || wd == -1)
2953 { 3737 {
2954 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3738 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2955 { 3739 {
2956 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3740 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2957 w->wd = -1; 3741 w->wd = -1;
2958 infy_add (EV_A_ w); /* re-add, no matter what */ 3742 infy_add (EV_A_ w); /* re-add, no matter what */
2959 } 3743 }
2960 3744
2961 stat_timer_cb (EV_A_ &w->timer, 0); 3745 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2966 3750
2967static void 3751static void
2968infy_cb (EV_P_ ev_io *w, int revents) 3752infy_cb (EV_P_ ev_io *w, int revents)
2969{ 3753{
2970 char buf [EV_INOTIFY_BUFSIZE]; 3754 char buf [EV_INOTIFY_BUFSIZE];
2971 struct inotify_event *ev = (struct inotify_event *)buf;
2972 int ofs; 3755 int ofs;
2973 int len = read (fs_fd, buf, sizeof (buf)); 3756 int len = read (fs_fd, buf, sizeof (buf));
2974 3757
2975 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3758 for (ofs = 0; ofs < len; )
3759 {
3760 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2976 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3761 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3762 ofs += sizeof (struct inotify_event) + ev->len;
3763 }
2977} 3764}
2978 3765
2979inline_size void 3766inline_size void ecb_cold
2980check_2625 (EV_P) 3767ev_check_2625 (EV_P)
2981{ 3768{
2982 /* kernels < 2.6.25 are borked 3769 /* kernels < 2.6.25 are borked
2983 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3770 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2984 */ 3771 */
2985 struct utsname buf; 3772 if (ev_linux_version () < 0x020619)
2986 int major, minor, micro;
2987
2988 if (uname (&buf))
2989 return;
2990
2991 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2992 return;
2993
2994 if (major < 2
2995 || (major == 2 && minor < 6)
2996 || (major == 2 && minor == 6 && micro < 25))
2997 return; 3773 return;
2998 3774
2999 fs_2625 = 1; 3775 fs_2625 = 1;
3000} 3776}
3001 3777
3002inline_size int 3778inline_size int
3003infy_newfd (void) 3779infy_newfd (void)
3004{ 3780{
3005#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3781#if defined IN_CLOEXEC && defined IN_NONBLOCK
3006 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3782 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3007 if (fd >= 0) 3783 if (fd >= 0)
3008 return fd; 3784 return fd;
3009#endif 3785#endif
3010 return inotify_init (); 3786 return inotify_init ();
… …
3016 if (fs_fd != -2) 3792 if (fs_fd != -2)
3017 return; 3793 return;
3018 3794
3019 fs_fd = -1; 3795 fs_fd = -1;
3020 3796
3021 check_2625 (EV_A); 3797 ev_check_2625 (EV_A);
3022 3798
3023 fs_fd = infy_newfd (); 3799 fs_fd = infy_newfd ();
3024 3800
3025 if (fs_fd >= 0) 3801 if (fs_fd >= 0)
3026 { 3802 {
3027 fd_intern (fs_fd); 3803 fd_intern (fs_fd);
3028 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3804 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
3029 ev_set_priority (&fs_w, EV_MAXPRI); 3805 ev_set_priority (&fs_w, EV_MAXPRI);
3030 ev_io_start (EV_A_ &fs_w); 3806 ev_io_start (EV_A_ &fs_w);
3807 ev_unref (EV_A);
3031 } 3808 }
3032} 3809}
3033 3810
3034inline_size void 3811inline_size void
3035infy_fork (EV_P) 3812infy_fork (EV_P)
… …
3037 int slot; 3814 int slot;
3038 3815
3039 if (fs_fd < 0) 3816 if (fs_fd < 0)
3040 return; 3817 return;
3041 3818
3819 ev_ref (EV_A);
3042 ev_io_stop (EV_A_ &fs_w); 3820 ev_io_stop (EV_A_ &fs_w);
3043 close (fs_fd); 3821 close (fs_fd);
3044 fs_fd = infy_newfd (); 3822 fs_fd = infy_newfd ();
3045 3823
3046 if (fs_fd >= 0) 3824 if (fs_fd >= 0)
3047 { 3825 {
3048 fd_intern (fs_fd); 3826 fd_intern (fs_fd);
3049 ev_io_set (&fs_w, fs_fd, EV_READ); 3827 ev_io_set (&fs_w, fs_fd, EV_READ);
3050 ev_io_start (EV_A_ &fs_w); 3828 ev_io_start (EV_A_ &fs_w);
3829 ev_unref (EV_A);
3051 } 3830 }
3052 3831
3053 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3832 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3054 { 3833 {
3055 WL w_ = fs_hash [slot].head; 3834 WL w_ = fs_hash [slot].head;
3056 fs_hash [slot].head = 0; 3835 fs_hash [slot].head = 0;
3057 3836
3058 while (w_) 3837 while (w_)
… …
3063 w->wd = -1; 3842 w->wd = -1;
3064 3843
3065 if (fs_fd >= 0) 3844 if (fs_fd >= 0)
3066 infy_add (EV_A_ w); /* re-add, no matter what */ 3845 infy_add (EV_A_ w); /* re-add, no matter what */
3067 else 3846 else
3847 {
3848 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3849 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3068 ev_timer_again (EV_A_ &w->timer); 3850 ev_timer_again (EV_A_ &w->timer);
3851 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3852 }
3069 } 3853 }
3070 } 3854 }
3071} 3855}
3072 3856
3073#endif 3857#endif
… …
3077#else 3861#else
3078# define EV_LSTAT(p,b) lstat (p, b) 3862# define EV_LSTAT(p,b) lstat (p, b)
3079#endif 3863#endif
3080 3864
3081void 3865void
3082ev_stat_stat (EV_P_ ev_stat *w) 3866ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3083{ 3867{
3084 if (lstat (w->path, &w->attr) < 0) 3868 if (lstat (w->path, &w->attr) < 0)
3085 w->attr.st_nlink = 0; 3869 w->attr.st_nlink = 0;
3086 else if (!w->attr.st_nlink) 3870 else if (!w->attr.st_nlink)
3087 w->attr.st_nlink = 1; 3871 w->attr.st_nlink = 1;
… …
3090static void noinline 3874static void noinline
3091stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3875stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3092{ 3876{
3093 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3877 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3094 3878
3095 /* we copy this here each the time so that */ 3879 ev_statdata prev = w->attr;
3096 /* prev has the old value when the callback gets invoked */
3097 w->prev = w->attr;
3098 ev_stat_stat (EV_A_ w); 3880 ev_stat_stat (EV_A_ w);
3099 3881
3100 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3882 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3101 if ( 3883 if (
3102 w->prev.st_dev != w->attr.st_dev 3884 prev.st_dev != w->attr.st_dev
3103 || w->prev.st_ino != w->attr.st_ino 3885 || prev.st_ino != w->attr.st_ino
3104 || w->prev.st_mode != w->attr.st_mode 3886 || prev.st_mode != w->attr.st_mode
3105 || w->prev.st_nlink != w->attr.st_nlink 3887 || prev.st_nlink != w->attr.st_nlink
3106 || w->prev.st_uid != w->attr.st_uid 3888 || prev.st_uid != w->attr.st_uid
3107 || w->prev.st_gid != w->attr.st_gid 3889 || prev.st_gid != w->attr.st_gid
3108 || w->prev.st_rdev != w->attr.st_rdev 3890 || prev.st_rdev != w->attr.st_rdev
3109 || w->prev.st_size != w->attr.st_size 3891 || prev.st_size != w->attr.st_size
3110 || w->prev.st_atime != w->attr.st_atime 3892 || prev.st_atime != w->attr.st_atime
3111 || w->prev.st_mtime != w->attr.st_mtime 3893 || prev.st_mtime != w->attr.st_mtime
3112 || w->prev.st_ctime != w->attr.st_ctime 3894 || prev.st_ctime != w->attr.st_ctime
3113 ) { 3895 ) {
3896 /* we only update w->prev on actual differences */
3897 /* in case we test more often than invoke the callback, */
3898 /* to ensure that prev is always different to attr */
3899 w->prev = prev;
3900
3114 #if EV_USE_INOTIFY 3901 #if EV_USE_INOTIFY
3115 if (fs_fd >= 0) 3902 if (fs_fd >= 0)
3116 { 3903 {
3117 infy_del (EV_A_ w); 3904 infy_del (EV_A_ w);
3118 infy_add (EV_A_ w); 3905 infy_add (EV_A_ w);
… …
3123 ev_feed_event (EV_A_ w, EV_STAT); 3910 ev_feed_event (EV_A_ w, EV_STAT);
3124 } 3911 }
3125} 3912}
3126 3913
3127void 3914void
3128ev_stat_start (EV_P_ ev_stat *w) 3915ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3129{ 3916{
3130 if (expect_false (ev_is_active (w))) 3917 if (expect_false (ev_is_active (w)))
3131 return; 3918 return;
3132 3919
3133 ev_stat_stat (EV_A_ w); 3920 ev_stat_stat (EV_A_ w);
… …
3143 3930
3144 if (fs_fd >= 0) 3931 if (fs_fd >= 0)
3145 infy_add (EV_A_ w); 3932 infy_add (EV_A_ w);
3146 else 3933 else
3147#endif 3934#endif
3935 {
3148 ev_timer_again (EV_A_ &w->timer); 3936 ev_timer_again (EV_A_ &w->timer);
3937 ev_unref (EV_A);
3938 }
3149 3939
3150 ev_start (EV_A_ (W)w, 1); 3940 ev_start (EV_A_ (W)w, 1);
3151 3941
3152 EV_FREQUENT_CHECK; 3942 EV_FREQUENT_CHECK;
3153} 3943}
3154 3944
3155void 3945void
3156ev_stat_stop (EV_P_ ev_stat *w) 3946ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3157{ 3947{
3158 clear_pending (EV_A_ (W)w); 3948 clear_pending (EV_A_ (W)w);
3159 if (expect_false (!ev_is_active (w))) 3949 if (expect_false (!ev_is_active (w)))
3160 return; 3950 return;
3161 3951
3162 EV_FREQUENT_CHECK; 3952 EV_FREQUENT_CHECK;
3163 3953
3164#if EV_USE_INOTIFY 3954#if EV_USE_INOTIFY
3165 infy_del (EV_A_ w); 3955 infy_del (EV_A_ w);
3166#endif 3956#endif
3957
3958 if (ev_is_active (&w->timer))
3959 {
3960 ev_ref (EV_A);
3167 ev_timer_stop (EV_A_ &w->timer); 3961 ev_timer_stop (EV_A_ &w->timer);
3962 }
3168 3963
3169 ev_stop (EV_A_ (W)w); 3964 ev_stop (EV_A_ (W)w);
3170 3965
3171 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3172} 3967}
3173#endif 3968#endif
3174 3969
3175#if EV_IDLE_ENABLE 3970#if EV_IDLE_ENABLE
3176void 3971void
3177ev_idle_start (EV_P_ ev_idle *w) 3972ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3178{ 3973{
3179 if (expect_false (ev_is_active (w))) 3974 if (expect_false (ev_is_active (w)))
3180 return; 3975 return;
3181 3976
3182 pri_adjust (EV_A_ (W)w); 3977 pri_adjust (EV_A_ (W)w);
… …
3195 3990
3196 EV_FREQUENT_CHECK; 3991 EV_FREQUENT_CHECK;
3197} 3992}
3198 3993
3199void 3994void
3200ev_idle_stop (EV_P_ ev_idle *w) 3995ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3201{ 3996{
3202 clear_pending (EV_A_ (W)w); 3997 clear_pending (EV_A_ (W)w);
3203 if (expect_false (!ev_is_active (w))) 3998 if (expect_false (!ev_is_active (w)))
3204 return; 3999 return;
3205 4000
… …
3217 4012
3218 EV_FREQUENT_CHECK; 4013 EV_FREQUENT_CHECK;
3219} 4014}
3220#endif 4015#endif
3221 4016
4017#if EV_PREPARE_ENABLE
3222void 4018void
3223ev_prepare_start (EV_P_ ev_prepare *w) 4019ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3224{ 4020{
3225 if (expect_false (ev_is_active (w))) 4021 if (expect_false (ev_is_active (w)))
3226 return; 4022 return;
3227 4023
3228 EV_FREQUENT_CHECK; 4024 EV_FREQUENT_CHECK;
… …
3233 4029
3234 EV_FREQUENT_CHECK; 4030 EV_FREQUENT_CHECK;
3235} 4031}
3236 4032
3237void 4033void
3238ev_prepare_stop (EV_P_ ev_prepare *w) 4034ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3239{ 4035{
3240 clear_pending (EV_A_ (W)w); 4036 clear_pending (EV_A_ (W)w);
3241 if (expect_false (!ev_is_active (w))) 4037 if (expect_false (!ev_is_active (w)))
3242 return; 4038 return;
3243 4039
… …
3252 4048
3253 ev_stop (EV_A_ (W)w); 4049 ev_stop (EV_A_ (W)w);
3254 4050
3255 EV_FREQUENT_CHECK; 4051 EV_FREQUENT_CHECK;
3256} 4052}
4053#endif
3257 4054
4055#if EV_CHECK_ENABLE
3258void 4056void
3259ev_check_start (EV_P_ ev_check *w) 4057ev_check_start (EV_P_ ev_check *w) EV_THROW
3260{ 4058{
3261 if (expect_false (ev_is_active (w))) 4059 if (expect_false (ev_is_active (w)))
3262 return; 4060 return;
3263 4061
3264 EV_FREQUENT_CHECK; 4062 EV_FREQUENT_CHECK;
… …
3269 4067
3270 EV_FREQUENT_CHECK; 4068 EV_FREQUENT_CHECK;
3271} 4069}
3272 4070
3273void 4071void
3274ev_check_stop (EV_P_ ev_check *w) 4072ev_check_stop (EV_P_ ev_check *w) EV_THROW
3275{ 4073{
3276 clear_pending (EV_A_ (W)w); 4074 clear_pending (EV_A_ (W)w);
3277 if (expect_false (!ev_is_active (w))) 4075 if (expect_false (!ev_is_active (w)))
3278 return; 4076 return;
3279 4077
… …
3288 4086
3289 ev_stop (EV_A_ (W)w); 4087 ev_stop (EV_A_ (W)w);
3290 4088
3291 EV_FREQUENT_CHECK; 4089 EV_FREQUENT_CHECK;
3292} 4090}
4091#endif
3293 4092
3294#if EV_EMBED_ENABLE 4093#if EV_EMBED_ENABLE
3295void noinline 4094void noinline
3296ev_embed_sweep (EV_P_ ev_embed *w) 4095ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3297{ 4096{
3298 ev_loop (w->other, EVLOOP_NONBLOCK); 4097 ev_run (w->other, EVRUN_NOWAIT);
3299} 4098}
3300 4099
3301static void 4100static void
3302embed_io_cb (EV_P_ ev_io *io, int revents) 4101embed_io_cb (EV_P_ ev_io *io, int revents)
3303{ 4102{
3304 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4103 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3305 4104
3306 if (ev_cb (w)) 4105 if (ev_cb (w))
3307 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4106 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3308 else 4107 else
3309 ev_loop (w->other, EVLOOP_NONBLOCK); 4108 ev_run (w->other, EVRUN_NOWAIT);
3310} 4109}
3311 4110
3312static void 4111static void
3313embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4112embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3314{ 4113{
… …
3318 EV_P = w->other; 4117 EV_P = w->other;
3319 4118
3320 while (fdchangecnt) 4119 while (fdchangecnt)
3321 { 4120 {
3322 fd_reify (EV_A); 4121 fd_reify (EV_A);
3323 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4122 ev_run (EV_A_ EVRUN_NOWAIT);
3324 } 4123 }
3325 } 4124 }
3326} 4125}
3327 4126
3328static void 4127static void
… …
3334 4133
3335 { 4134 {
3336 EV_P = w->other; 4135 EV_P = w->other;
3337 4136
3338 ev_loop_fork (EV_A); 4137 ev_loop_fork (EV_A);
3339 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4138 ev_run (EV_A_ EVRUN_NOWAIT);
3340 } 4139 }
3341 4140
3342 ev_embed_start (EV_A_ w); 4141 ev_embed_start (EV_A_ w);
3343} 4142}
3344 4143
… …
3349 ev_idle_stop (EV_A_ idle); 4148 ev_idle_stop (EV_A_ idle);
3350} 4149}
3351#endif 4150#endif
3352 4151
3353void 4152void
3354ev_embed_start (EV_P_ ev_embed *w) 4153ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3355{ 4154{
3356 if (expect_false (ev_is_active (w))) 4155 if (expect_false (ev_is_active (w)))
3357 return; 4156 return;
3358 4157
3359 { 4158 {
… …
3380 4179
3381 EV_FREQUENT_CHECK; 4180 EV_FREQUENT_CHECK;
3382} 4181}
3383 4182
3384void 4183void
3385ev_embed_stop (EV_P_ ev_embed *w) 4184ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3386{ 4185{
3387 clear_pending (EV_A_ (W)w); 4186 clear_pending (EV_A_ (W)w);
3388 if (expect_false (!ev_is_active (w))) 4187 if (expect_false (!ev_is_active (w)))
3389 return; 4188 return;
3390 4189
… …
3392 4191
3393 ev_io_stop (EV_A_ &w->io); 4192 ev_io_stop (EV_A_ &w->io);
3394 ev_prepare_stop (EV_A_ &w->prepare); 4193 ev_prepare_stop (EV_A_ &w->prepare);
3395 ev_fork_stop (EV_A_ &w->fork); 4194 ev_fork_stop (EV_A_ &w->fork);
3396 4195
4196 ev_stop (EV_A_ (W)w);
4197
3397 EV_FREQUENT_CHECK; 4198 EV_FREQUENT_CHECK;
3398} 4199}
3399#endif 4200#endif
3400 4201
3401#if EV_FORK_ENABLE 4202#if EV_FORK_ENABLE
3402void 4203void
3403ev_fork_start (EV_P_ ev_fork *w) 4204ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3404{ 4205{
3405 if (expect_false (ev_is_active (w))) 4206 if (expect_false (ev_is_active (w)))
3406 return; 4207 return;
3407 4208
3408 EV_FREQUENT_CHECK; 4209 EV_FREQUENT_CHECK;
… …
3413 4214
3414 EV_FREQUENT_CHECK; 4215 EV_FREQUENT_CHECK;
3415} 4216}
3416 4217
3417void 4218void
3418ev_fork_stop (EV_P_ ev_fork *w) 4219ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3419{ 4220{
3420 clear_pending (EV_A_ (W)w); 4221 clear_pending (EV_A_ (W)w);
3421 if (expect_false (!ev_is_active (w))) 4222 if (expect_false (!ev_is_active (w)))
3422 return; 4223 return;
3423 4224
… …
3434 4235
3435 EV_FREQUENT_CHECK; 4236 EV_FREQUENT_CHECK;
3436} 4237}
3437#endif 4238#endif
3438 4239
4240#if EV_CLEANUP_ENABLE
4241void
4242ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4243{
4244 if (expect_false (ev_is_active (w)))
4245 return;
4246
4247 EV_FREQUENT_CHECK;
4248
4249 ev_start (EV_A_ (W)w, ++cleanupcnt);
4250 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4251 cleanups [cleanupcnt - 1] = w;
4252
4253 /* cleanup watchers should never keep a refcount on the loop */
4254 ev_unref (EV_A);
4255 EV_FREQUENT_CHECK;
4256}
4257
4258void
4259ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4260{
4261 clear_pending (EV_A_ (W)w);
4262 if (expect_false (!ev_is_active (w)))
4263 return;
4264
4265 EV_FREQUENT_CHECK;
4266 ev_ref (EV_A);
4267
4268 {
4269 int active = ev_active (w);
4270
4271 cleanups [active - 1] = cleanups [--cleanupcnt];
4272 ev_active (cleanups [active - 1]) = active;
4273 }
4274
4275 ev_stop (EV_A_ (W)w);
4276
4277 EV_FREQUENT_CHECK;
4278}
4279#endif
4280
3439#if EV_ASYNC_ENABLE 4281#if EV_ASYNC_ENABLE
3440void 4282void
3441ev_async_start (EV_P_ ev_async *w) 4283ev_async_start (EV_P_ ev_async *w) EV_THROW
3442{ 4284{
3443 if (expect_false (ev_is_active (w))) 4285 if (expect_false (ev_is_active (w)))
3444 return; 4286 return;
4287
4288 w->sent = 0;
3445 4289
3446 evpipe_init (EV_A); 4290 evpipe_init (EV_A);
3447 4291
3448 EV_FREQUENT_CHECK; 4292 EV_FREQUENT_CHECK;
3449 4293
… …
3453 4297
3454 EV_FREQUENT_CHECK; 4298 EV_FREQUENT_CHECK;
3455} 4299}
3456 4300
3457void 4301void
3458ev_async_stop (EV_P_ ev_async *w) 4302ev_async_stop (EV_P_ ev_async *w) EV_THROW
3459{ 4303{
3460 clear_pending (EV_A_ (W)w); 4304 clear_pending (EV_A_ (W)w);
3461 if (expect_false (!ev_is_active (w))) 4305 if (expect_false (!ev_is_active (w)))
3462 return; 4306 return;
3463 4307
… …
3474 4318
3475 EV_FREQUENT_CHECK; 4319 EV_FREQUENT_CHECK;
3476} 4320}
3477 4321
3478void 4322void
3479ev_async_send (EV_P_ ev_async *w) 4323ev_async_send (EV_P_ ev_async *w) EV_THROW
3480{ 4324{
3481 w->sent = 1; 4325 w->sent = 1;
3482 evpipe_write (EV_A_ &async_pending); 4326 evpipe_write (EV_A_ &async_pending);
3483} 4327}
3484#endif 4328#endif
… …
3521 4365
3522 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4366 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3523} 4367}
3524 4368
3525void 4369void
3526ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4370ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3527{ 4371{
3528 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4372 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3529 4373
3530 if (expect_false (!once)) 4374 if (expect_false (!once))
3531 { 4375 {
3532 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4376 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3533 return; 4377 return;
3534 } 4378 }
3535 4379
3536 once->cb = cb; 4380 once->cb = cb;
3537 once->arg = arg; 4381 once->arg = arg;
… …
3552} 4396}
3553 4397
3554/*****************************************************************************/ 4398/*****************************************************************************/
3555 4399
3556#if EV_WALK_ENABLE 4400#if EV_WALK_ENABLE
3557void 4401void ecb_cold
3558ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4402ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3559{ 4403{
3560 int i, j; 4404 int i, j;
3561 ev_watcher_list *wl, *wn; 4405 ev_watcher_list *wl, *wn;
3562 4406
3563 if (types & (EV_IO | EV_EMBED)) 4407 if (types & (EV_IO | EV_EMBED))
… …
3606 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4450 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3607#endif 4451#endif
3608 4452
3609#if EV_IDLE_ENABLE 4453#if EV_IDLE_ENABLE
3610 if (types & EV_IDLE) 4454 if (types & EV_IDLE)
3611 for (j = NUMPRI; i--; ) 4455 for (j = NUMPRI; j--; )
3612 for (i = idlecnt [j]; i--; ) 4456 for (i = idlecnt [j]; i--; )
3613 cb (EV_A_ EV_IDLE, idles [j][i]); 4457 cb (EV_A_ EV_IDLE, idles [j][i]);
3614#endif 4458#endif
3615 4459
3616#if EV_FORK_ENABLE 4460#if EV_FORK_ENABLE
… …
3624 if (types & EV_ASYNC) 4468 if (types & EV_ASYNC)
3625 for (i = asynccnt; i--; ) 4469 for (i = asynccnt; i--; )
3626 cb (EV_A_ EV_ASYNC, asyncs [i]); 4470 cb (EV_A_ EV_ASYNC, asyncs [i]);
3627#endif 4471#endif
3628 4472
4473#if EV_PREPARE_ENABLE
3629 if (types & EV_PREPARE) 4474 if (types & EV_PREPARE)
3630 for (i = preparecnt; i--; ) 4475 for (i = preparecnt; i--; )
3631#if EV_EMBED_ENABLE 4476# if EV_EMBED_ENABLE
3632 if (ev_cb (prepares [i]) != embed_prepare_cb) 4477 if (ev_cb (prepares [i]) != embed_prepare_cb)
3633#endif 4478# endif
3634 cb (EV_A_ EV_PREPARE, prepares [i]); 4479 cb (EV_A_ EV_PREPARE, prepares [i]);
4480#endif
3635 4481
4482#if EV_CHECK_ENABLE
3636 if (types & EV_CHECK) 4483 if (types & EV_CHECK)
3637 for (i = checkcnt; i--; ) 4484 for (i = checkcnt; i--; )
3638 cb (EV_A_ EV_CHECK, checks [i]); 4485 cb (EV_A_ EV_CHECK, checks [i]);
4486#endif
3639 4487
4488#if EV_SIGNAL_ENABLE
3640 if (types & EV_SIGNAL) 4489 if (types & EV_SIGNAL)
3641 for (i = 0; i < EV_NSIG - 1; ++i) 4490 for (i = 0; i < EV_NSIG - 1; ++i)
3642 for (wl = signals [i].head; wl; ) 4491 for (wl = signals [i].head; wl; )
3643 { 4492 {
3644 wn = wl->next; 4493 wn = wl->next;
3645 cb (EV_A_ EV_SIGNAL, wl); 4494 cb (EV_A_ EV_SIGNAL, wl);
3646 wl = wn; 4495 wl = wn;
3647 } 4496 }
4497#endif
3648 4498
4499#if EV_CHILD_ENABLE
3649 if (types & EV_CHILD) 4500 if (types & EV_CHILD)
3650 for (i = EV_PID_HASHSIZE; i--; ) 4501 for (i = (EV_PID_HASHSIZE); i--; )
3651 for (wl = childs [i]; wl; ) 4502 for (wl = childs [i]; wl; )
3652 { 4503 {
3653 wn = wl->next; 4504 wn = wl->next;
3654 cb (EV_A_ EV_CHILD, wl); 4505 cb (EV_A_ EV_CHILD, wl);
3655 wl = wn; 4506 wl = wn;
3656 } 4507 }
4508#endif
3657/* EV_STAT 0x00001000 /* stat data changed */ 4509/* EV_STAT 0x00001000 /* stat data changed */
3658/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4510/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3659} 4511}
3660#endif 4512#endif
3661 4513
3662#if EV_MULTIPLICITY 4514#if EV_MULTIPLICITY
3663 #include "ev_wrap.h" 4515 #include "ev_wrap.h"
3664#endif 4516#endif
3665 4517
3666#ifdef __cplusplus
3667}
3668#endif
3669

Diff Legend

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