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Comparing libev/ev.c (file contents):
Revision 1.311 by root, Wed Jul 29 09:36:05 2009 UTC vs.
Revision 1.435 by root, Sat May 26 08:52:09 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
206# include <winsock2.h>
183# include <windows.h> 207# include <windows.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__ >= 9)) 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
376# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
377# endif 413# endif
378#endif
379
380#if EV_SELECT_IS_WINSOCKET
381# include <winsock.h>
382#endif 414#endif
383 415
384#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
385/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
386# include <stdint.h> 418# include <stdint.h>
… …
392# define EFD_CLOEXEC O_CLOEXEC 424# define EFD_CLOEXEC O_CLOEXEC
393# else 425# else
394# define EFD_CLOEXEC 02000000 426# define EFD_CLOEXEC 02000000
395# endif 427# endif
396# endif 428# endif
397# ifdef __cplusplus 429EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
398extern "C" { 430#endif
431
432#if EV_USE_SIGNALFD
433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
434# include <stdint.h>
435# ifndef SFD_NONBLOCK
436# define SFD_NONBLOCK O_NONBLOCK
399# endif 437# endif
400int eventfd (unsigned int initval, int flags); 438# ifndef SFD_CLOEXEC
401# ifdef __cplusplus 439# ifdef O_CLOEXEC
402} 440# define SFD_CLOEXEC O_CLOEXEC
441# else
442# define SFD_CLOEXEC 02000000
443# endif
403# endif 444# endif
404#endif 445EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
405 446
406#if EV_USE_SIGNALFD 447struct signalfd_siginfo
407# include <sys/signalfd.h> 448{
449 uint32_t ssi_signo;
450 char pad[128 - sizeof (uint32_t)];
451};
408#endif 452#endif
409 453
410/**/ 454/**/
411 455
412#if EV_VERIFY >= 3 456#if EV_VERIFY >= 3
413# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 457# define EV_FREQUENT_CHECK ev_verify (EV_A)
414#else 458#else
415# define EV_FREQUENT_CHECK do { } while (0) 459# define EV_FREQUENT_CHECK do { } while (0)
416#endif 460#endif
417 461
418/* 462/*
419 * This is used to avoid floating point rounding problems. 463 * This is used to work around floating point rounding problems.
420 * It is added to ev_rt_now when scheduling periodics
421 * to ensure progress, time-wise, even when rounding
422 * errors are against us.
423 * This value is good at least till the year 4000. 464 * This value is good at least till the year 4000.
424 * Better solutions welcome.
425 */ 465 */
426#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
427 468
428#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
429#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
430/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
431 471
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
474
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */
477/*
478 * libecb - http://software.schmorp.de/pkg/libecb
479 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved.
483 *
484 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met:
486 *
487 * 1. Redistributions of source code must retain the above copyright notice,
488 * this list of conditions and the following disclaimer.
489 *
490 * 2. Redistributions in binary form must reproduce the above copyright
491 * notice, this list of conditions and the following disclaimer in the
492 * documentation and/or other materials provided with the distribution.
493 *
494 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
495 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
496 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
497 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
498 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE.
504 */
505
506#ifndef ECB_H
507#define ECB_H
508
509#ifdef _WIN32
510 typedef signed char int8_t;
511 typedef unsigned char uint8_t;
512 typedef signed short int16_t;
513 typedef unsigned short uint16_t;
514 typedef signed int int32_t;
515 typedef unsigned int uint32_t;
432#if __GNUC__ >= 4 516 #if __GNUC__
433# define expect(expr,value) __builtin_expect ((expr),(value)) 517 typedef signed long long int64_t;
434# define noinline __attribute__ ((noinline)) 518 typedef unsigned long long uint64_t;
519 #else /* _MSC_VER || __BORLANDC__ */
520 typedef signed __int64 int64_t;
521 typedef unsigned __int64 uint64_t;
522 #endif
435#else 523#else
436# define expect(expr,value) (expr) 524 #include <inttypes.h>
437# define noinline
438# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
439# define inline
440# endif 525#endif
526
527/* many compilers define _GNUC_ to some versions but then only implement
528 * what their idiot authors think are the "more important" extensions,
529 * causing enormous grief in return for some better fake benchmark numbers.
530 * or so.
531 * we try to detect these and simply assume they are not gcc - if they have
532 * an issue with that they should have done it right in the first place.
533 */
534#ifndef ECB_GCC_VERSION
535 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
536 #define ECB_GCC_VERSION(major,minor) 0
537 #else
538 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
441#endif 539 #endif
540#endif
442 541
542/*****************************************************************************/
543
544/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
545/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
546
547#if ECB_NO_THREADS
548# define ECB_NO_SMP 1
549#endif
550
551#if ECB_NO_THREADS || ECB_NO_SMP
552 #define ECB_MEMORY_FENCE do { } while (0)
553#endif
554
555#ifndef ECB_MEMORY_FENCE
556 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
557 #if __i386 || __i386__
558 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
559 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
560 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
561 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
565 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
567 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
568 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
570 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
571 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
573 #elif __sparc || __sparc__
574 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
575 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
576 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
577 #elif defined __s390__ || defined __s390x__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
579 #elif defined __mips__
580 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
581 #elif defined __alpha__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
583 #endif
584 #endif
585#endif
586
587#ifndef ECB_MEMORY_FENCE
588 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
589 #define ECB_MEMORY_FENCE __sync_synchronize ()
590 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
591 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
592 #elif _MSC_VER >= 1400 /* VC++ 2005 */
593 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
594 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
595 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
596 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
597 #elif defined _WIN32
598 #include <WinNT.h>
599 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
600 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
601 #include <mbarrier.h>
602 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
603 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
604 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
605 #elif __xlC__
606 #define ECB_MEMORY_FENCE __sync ()
607 #endif
608#endif
609
610#ifndef ECB_MEMORY_FENCE
611 #if !ECB_AVOID_PTHREADS
612 /*
613 * if you get undefined symbol references to pthread_mutex_lock,
614 * or failure to find pthread.h, then you should implement
615 * the ECB_MEMORY_FENCE operations for your cpu/compiler
616 * OR provide pthread.h and link against the posix thread library
617 * of your system.
618 */
619 #include <pthread.h>
620 #define ECB_NEEDS_PTHREADS 1
621 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
622
623 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
624 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
625 #endif
626#endif
627
628#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
629 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
630#endif
631
632#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
633 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
634#endif
635
636/*****************************************************************************/
637
638#define ECB_C99 (__STDC_VERSION__ >= 199901L)
639
640#if __cplusplus
641 #define ecb_inline static inline
642#elif ECB_GCC_VERSION(2,5)
643 #define ecb_inline static __inline__
644#elif ECB_C99
645 #define ecb_inline static inline
646#else
647 #define ecb_inline static
648#endif
649
650#if ECB_GCC_VERSION(3,3)
651 #define ecb_restrict __restrict__
652#elif ECB_C99
653 #define ecb_restrict restrict
654#else
655 #define ecb_restrict
656#endif
657
658typedef int ecb_bool;
659
660#define ECB_CONCAT_(a, b) a ## b
661#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
662#define ECB_STRINGIFY_(a) # a
663#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
664
665#define ecb_function_ ecb_inline
666
667#if ECB_GCC_VERSION(3,1)
668 #define ecb_attribute(attrlist) __attribute__(attrlist)
669 #define ecb_is_constant(expr) __builtin_constant_p (expr)
670 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
671 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
672#else
673 #define ecb_attribute(attrlist)
674 #define ecb_is_constant(expr) 0
675 #define ecb_expect(expr,value) (expr)
676 #define ecb_prefetch(addr,rw,locality)
677#endif
678
679/* no emulation for ecb_decltype */
680#if ECB_GCC_VERSION(4,5)
681 #define ecb_decltype(x) __decltype(x)
682#elif ECB_GCC_VERSION(3,0)
683 #define ecb_decltype(x) __typeof(x)
684#endif
685
686#define ecb_noinline ecb_attribute ((__noinline__))
687#define ecb_noreturn ecb_attribute ((__noreturn__))
688#define ecb_unused ecb_attribute ((__unused__))
689#define ecb_const ecb_attribute ((__const__))
690#define ecb_pure ecb_attribute ((__pure__))
691
692#if ECB_GCC_VERSION(4,3)
693 #define ecb_artificial ecb_attribute ((__artificial__))
694 #define ecb_hot ecb_attribute ((__hot__))
695 #define ecb_cold ecb_attribute ((__cold__))
696#else
697 #define ecb_artificial
698 #define ecb_hot
699 #define ecb_cold
700#endif
701
702/* put around conditional expressions if you are very sure that the */
703/* expression is mostly true or mostly false. note that these return */
704/* booleans, not the expression. */
443#define expect_false(expr) expect ((expr) != 0, 0) 705#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
444#define expect_true(expr) expect ((expr) != 0, 1) 706#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
707/* for compatibility to the rest of the world */
708#define ecb_likely(expr) ecb_expect_true (expr)
709#define ecb_unlikely(expr) ecb_expect_false (expr)
710
711/* count trailing zero bits and count # of one bits */
712#if ECB_GCC_VERSION(3,4)
713 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
714 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
715 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
716 #define ecb_ctz32(x) __builtin_ctz (x)
717 #define ecb_ctz64(x) __builtin_ctzll (x)
718 #define ecb_popcount32(x) __builtin_popcount (x)
719 /* no popcountll */
720#else
721 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
722 ecb_function_ int
723 ecb_ctz32 (uint32_t x)
724 {
725 int r = 0;
726
727 x &= ~x + 1; /* this isolates the lowest bit */
728
729#if ECB_branchless_on_i386
730 r += !!(x & 0xaaaaaaaa) << 0;
731 r += !!(x & 0xcccccccc) << 1;
732 r += !!(x & 0xf0f0f0f0) << 2;
733 r += !!(x & 0xff00ff00) << 3;
734 r += !!(x & 0xffff0000) << 4;
735#else
736 if (x & 0xaaaaaaaa) r += 1;
737 if (x & 0xcccccccc) r += 2;
738 if (x & 0xf0f0f0f0) r += 4;
739 if (x & 0xff00ff00) r += 8;
740 if (x & 0xffff0000) r += 16;
741#endif
742
743 return r;
744 }
745
746 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
747 ecb_function_ int
748 ecb_ctz64 (uint64_t x)
749 {
750 int shift = x & 0xffffffffU ? 0 : 32;
751 return ecb_ctz32 (x >> shift) + shift;
752 }
753
754 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
755 ecb_function_ int
756 ecb_popcount32 (uint32_t x)
757 {
758 x -= (x >> 1) & 0x55555555;
759 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
760 x = ((x >> 4) + x) & 0x0f0f0f0f;
761 x *= 0x01010101;
762
763 return x >> 24;
764 }
765
766 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
767 ecb_function_ int ecb_ld32 (uint32_t x)
768 {
769 int r = 0;
770
771 if (x >> 16) { x >>= 16; r += 16; }
772 if (x >> 8) { x >>= 8; r += 8; }
773 if (x >> 4) { x >>= 4; r += 4; }
774 if (x >> 2) { x >>= 2; r += 2; }
775 if (x >> 1) { r += 1; }
776
777 return r;
778 }
779
780 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
781 ecb_function_ int ecb_ld64 (uint64_t x)
782 {
783 int r = 0;
784
785 if (x >> 32) { x >>= 32; r += 32; }
786
787 return r + ecb_ld32 (x);
788 }
789#endif
790
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
793{
794 return ( (x * 0x0802U & 0x22110U)
795 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
796}
797
798ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
800{
801 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
802 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
803 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
804 x = ( x >> 8 ) | ( x << 8);
805
806 return x;
807}
808
809ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
811{
812 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
813 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
814 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
815 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
816 x = ( x >> 16 ) | ( x << 16);
817
818 return x;
819}
820
821/* popcount64 is only available on 64 bit cpus as gcc builtin */
822/* so for this version we are lazy */
823ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
824ecb_function_ int
825ecb_popcount64 (uint64_t x)
826{
827 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
828}
829
830ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
831ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
832ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
833ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
834ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
835ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
836ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
837ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
838
839ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
840ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
841ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
842ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
843ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
844ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
845ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
846ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
847
848#if ECB_GCC_VERSION(4,3)
849 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
850 #define ecb_bswap32(x) __builtin_bswap32 (x)
851 #define ecb_bswap64(x) __builtin_bswap64 (x)
852#else
853 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
854 ecb_function_ uint16_t
855 ecb_bswap16 (uint16_t x)
856 {
857 return ecb_rotl16 (x, 8);
858 }
859
860 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
861 ecb_function_ uint32_t
862 ecb_bswap32 (uint32_t x)
863 {
864 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
865 }
866
867 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
868 ecb_function_ uint64_t
869 ecb_bswap64 (uint64_t x)
870 {
871 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
872 }
873#endif
874
875#if ECB_GCC_VERSION(4,5)
876 #define ecb_unreachable() __builtin_unreachable ()
877#else
878 /* this seems to work fine, but gcc always emits a warning for it :/ */
879 ecb_inline void ecb_unreachable (void) ecb_noreturn;
880 ecb_inline void ecb_unreachable (void) { }
881#endif
882
883/* try to tell the compiler that some condition is definitely true */
884#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
885
886ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
887ecb_inline unsigned char
888ecb_byteorder_helper (void)
889{
890 const uint32_t u = 0x11223344;
891 return *(unsigned char *)&u;
892}
893
894ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
895ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
896ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
897ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
898
899#if ECB_GCC_VERSION(3,0) || ECB_C99
900 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
901#else
902 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
903#endif
904
905#if __cplusplus
906 template<typename T>
907 static inline T ecb_div_rd (T val, T div)
908 {
909 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
910 }
911 template<typename T>
912 static inline T ecb_div_ru (T val, T div)
913 {
914 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
915 }
916#else
917 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
918 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
919#endif
920
921#if ecb_cplusplus_does_not_suck
922 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
923 template<typename T, int N>
924 static inline int ecb_array_length (const T (&arr)[N])
925 {
926 return N;
927 }
928#else
929 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
930#endif
931
932#endif
933
934/* ECB.H END */
935
936#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
937/* if your architecture doesn't need memory fences, e.g. because it is
938 * single-cpu/core, or if you use libev in a project that doesn't use libev
939 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
940 * libev, in which cases the memory fences become nops.
941 * alternatively, you can remove this #error and link against libpthread,
942 * which will then provide the memory fences.
943 */
944# error "memory fences not defined for your architecture, please report"
945#endif
946
947#ifndef ECB_MEMORY_FENCE
948# define ECB_MEMORY_FENCE do { } while (0)
949# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
950# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
951#endif
952
953#define expect_false(cond) ecb_expect_false (cond)
954#define expect_true(cond) ecb_expect_true (cond)
955#define noinline ecb_noinline
956
445#define inline_size static inline 957#define inline_size ecb_inline
446 958
447#if EV_MINIMAL 959#if EV_FEATURE_CODE
960# define inline_speed ecb_inline
961#else
448# define inline_speed static noinline 962# define inline_speed static noinline
449#else
450# define inline_speed static inline
451#endif 963#endif
452 964
453#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 965#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
454 966
455#if EV_MINPRI == EV_MAXPRI 967#if EV_MINPRI == EV_MAXPRI
… …
468#define ev_active(w) ((W)(w))->active 980#define ev_active(w) ((W)(w))->active
469#define ev_at(w) ((WT)(w))->at 981#define ev_at(w) ((WT)(w))->at
470 982
471#if EV_USE_REALTIME 983#if EV_USE_REALTIME
472/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 984/* sig_atomic_t is used to avoid per-thread variables or locking but still */
473/* giving it a reasonably high chance of working on typical architetcures */ 985/* giving it a reasonably high chance of working on typical architectures */
474static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 986static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
475#endif 987#endif
476 988
477#if EV_USE_MONOTONIC 989#if EV_USE_MONOTONIC
478static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 990static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
479#endif 991#endif
480 992
993#ifndef EV_FD_TO_WIN32_HANDLE
994# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
995#endif
996#ifndef EV_WIN32_HANDLE_TO_FD
997# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
998#endif
999#ifndef EV_WIN32_CLOSE_FD
1000# define EV_WIN32_CLOSE_FD(fd) close (fd)
1001#endif
1002
481#ifdef _WIN32 1003#ifdef _WIN32
482# include "ev_win32.c" 1004# include "ev_win32.c"
483#endif 1005#endif
484 1006
485/*****************************************************************************/ 1007/*****************************************************************************/
486 1008
1009/* define a suitable floor function (only used by periodics atm) */
1010
1011#if EV_USE_FLOOR
1012# include <math.h>
1013# define ev_floor(v) floor (v)
1014#else
1015
1016#include <float.h>
1017
1018/* a floor() replacement function, should be independent of ev_tstamp type */
1019static ev_tstamp noinline
1020ev_floor (ev_tstamp v)
1021{
1022 /* the choice of shift factor is not terribly important */
1023#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1024 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1025#else
1026 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1027#endif
1028
1029 /* argument too large for an unsigned long? */
1030 if (expect_false (v >= shift))
1031 {
1032 ev_tstamp f;
1033
1034 if (v == v - 1.)
1035 return v; /* very large number */
1036
1037 f = shift * ev_floor (v * (1. / shift));
1038 return f + ev_floor (v - f);
1039 }
1040
1041 /* special treatment for negative args? */
1042 if (expect_false (v < 0.))
1043 {
1044 ev_tstamp f = -ev_floor (-v);
1045
1046 return f - (f == v ? 0 : 1);
1047 }
1048
1049 /* fits into an unsigned long */
1050 return (unsigned long)v;
1051}
1052
1053#endif
1054
1055/*****************************************************************************/
1056
1057#ifdef __linux
1058# include <sys/utsname.h>
1059#endif
1060
1061static unsigned int noinline ecb_cold
1062ev_linux_version (void)
1063{
1064#ifdef __linux
1065 unsigned int v = 0;
1066 struct utsname buf;
1067 int i;
1068 char *p = buf.release;
1069
1070 if (uname (&buf))
1071 return 0;
1072
1073 for (i = 3+1; --i; )
1074 {
1075 unsigned int c = 0;
1076
1077 for (;;)
1078 {
1079 if (*p >= '0' && *p <= '9')
1080 c = c * 10 + *p++ - '0';
1081 else
1082 {
1083 p += *p == '.';
1084 break;
1085 }
1086 }
1087
1088 v = (v << 8) | c;
1089 }
1090
1091 return v;
1092#else
1093 return 0;
1094#endif
1095}
1096
1097/*****************************************************************************/
1098
1099#if EV_AVOID_STDIO
1100static void noinline ecb_cold
1101ev_printerr (const char *msg)
1102{
1103 write (STDERR_FILENO, msg, strlen (msg));
1104}
1105#endif
1106
487static void (*syserr_cb)(const char *msg); 1107static void (*syserr_cb)(const char *msg) EV_THROW;
488 1108
489void 1109void ecb_cold
490ev_set_syserr_cb (void (*cb)(const char *msg)) 1110ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
491{ 1111{
492 syserr_cb = cb; 1112 syserr_cb = cb;
493} 1113}
494 1114
495static void noinline 1115static void noinline ecb_cold
496ev_syserr (const char *msg) 1116ev_syserr (const char *msg)
497{ 1117{
498 if (!msg) 1118 if (!msg)
499 msg = "(libev) system error"; 1119 msg = "(libev) system error";
500 1120
501 if (syserr_cb) 1121 if (syserr_cb)
502 syserr_cb (msg); 1122 syserr_cb (msg);
503 else 1123 else
504 { 1124 {
1125#if EV_AVOID_STDIO
1126 ev_printerr (msg);
1127 ev_printerr (": ");
1128 ev_printerr (strerror (errno));
1129 ev_printerr ("\n");
1130#else
505 perror (msg); 1131 perror (msg);
1132#endif
506 abort (); 1133 abort ();
507 } 1134 }
508} 1135}
509 1136
510static void * 1137static void *
511ev_realloc_emul (void *ptr, long size) 1138ev_realloc_emul (void *ptr, long size) EV_THROW
512{ 1139{
1140#if __GLIBC__
1141 return realloc (ptr, size);
1142#else
513 /* some systems, notably openbsd and darwin, fail to properly 1143 /* some systems, notably openbsd and darwin, fail to properly
514 * implement realloc (x, 0) (as required by both ansi c-98 and 1144 * implement realloc (x, 0) (as required by both ansi c-89 and
515 * the single unix specification, so work around them here. 1145 * the single unix specification, so work around them here.
516 */ 1146 */
517 1147
518 if (size) 1148 if (size)
519 return realloc (ptr, size); 1149 return realloc (ptr, size);
520 1150
521 free (ptr); 1151 free (ptr);
522 return 0; 1152 return 0;
1153#endif
523} 1154}
524 1155
525static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1156static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
526 1157
527void 1158void ecb_cold
528ev_set_allocator (void *(*cb)(void *ptr, long size)) 1159ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
529{ 1160{
530 alloc = cb; 1161 alloc = cb;
531} 1162}
532 1163
533inline_speed void * 1164inline_speed void *
… …
535{ 1166{
536 ptr = alloc (ptr, size); 1167 ptr = alloc (ptr, size);
537 1168
538 if (!ptr && size) 1169 if (!ptr && size)
539 { 1170 {
1171#if EV_AVOID_STDIO
1172 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1173#else
540 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1174 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1175#endif
541 abort (); 1176 abort ();
542 } 1177 }
543 1178
544 return ptr; 1179 return ptr;
545} 1180}
… …
561 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1196 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
562 unsigned char unused; 1197 unsigned char unused;
563#if EV_USE_EPOLL 1198#if EV_USE_EPOLL
564 unsigned int egen; /* generation counter to counter epoll bugs */ 1199 unsigned int egen; /* generation counter to counter epoll bugs */
565#endif 1200#endif
566#if EV_SELECT_IS_WINSOCKET 1201#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
567 SOCKET handle; 1202 SOCKET handle;
1203#endif
1204#if EV_USE_IOCP
1205 OVERLAPPED or, ow;
568#endif 1206#endif
569} ANFD; 1207} ANFD;
570 1208
571/* stores the pending event set for a given watcher */ 1209/* stores the pending event set for a given watcher */
572typedef struct 1210typedef struct
… …
614 #undef VAR 1252 #undef VAR
615 }; 1253 };
616 #include "ev_wrap.h" 1254 #include "ev_wrap.h"
617 1255
618 static struct ev_loop default_loop_struct; 1256 static struct ev_loop default_loop_struct;
619 struct ev_loop *ev_default_loop_ptr; 1257 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
620 1258
621#else 1259#else
622 1260
623 ev_tstamp ev_rt_now; 1261 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
624 #define VAR(name,decl) static decl; 1262 #define VAR(name,decl) static decl;
625 #include "ev_vars.h" 1263 #include "ev_vars.h"
626 #undef VAR 1264 #undef VAR
627 1265
628 static int ev_default_loop_ptr; 1266 static int ev_default_loop_ptr;
629 1267
630#endif 1268#endif
631 1269
632#if EV_MINIMAL < 2 1270#if EV_FEATURE_API
633# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1271# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
634# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1272# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
635# define EV_INVOKE_PENDING invoke_cb (EV_A) 1273# define EV_INVOKE_PENDING invoke_cb (EV_A)
636#else 1274#else
637# define EV_RELEASE_CB (void)0 1275# define EV_RELEASE_CB (void)0
638# define EV_ACQUIRE_CB (void)0 1276# define EV_ACQUIRE_CB (void)0
639# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1277# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
640#endif 1278#endif
641 1279
642#define EVUNLOOP_RECURSE 0x80 1280#define EVBREAK_RECURSE 0x80
643 1281
644/*****************************************************************************/ 1282/*****************************************************************************/
645 1283
646#ifndef EV_HAVE_EV_TIME 1284#ifndef EV_HAVE_EV_TIME
647ev_tstamp 1285ev_tstamp
648ev_time (void) 1286ev_time (void) EV_THROW
649{ 1287{
650#if EV_USE_REALTIME 1288#if EV_USE_REALTIME
651 if (expect_true (have_realtime)) 1289 if (expect_true (have_realtime))
652 { 1290 {
653 struct timespec ts; 1291 struct timespec ts;
… …
677 return ev_time (); 1315 return ev_time ();
678} 1316}
679 1317
680#if EV_MULTIPLICITY 1318#if EV_MULTIPLICITY
681ev_tstamp 1319ev_tstamp
682ev_now (EV_P) 1320ev_now (EV_P) EV_THROW
683{ 1321{
684 return ev_rt_now; 1322 return ev_rt_now;
685} 1323}
686#endif 1324#endif
687 1325
688void 1326void
689ev_sleep (ev_tstamp delay) 1327ev_sleep (ev_tstamp delay) EV_THROW
690{ 1328{
691 if (delay > 0.) 1329 if (delay > 0.)
692 { 1330 {
693#if EV_USE_NANOSLEEP 1331#if EV_USE_NANOSLEEP
694 struct timespec ts; 1332 struct timespec ts;
695 1333
696 ts.tv_sec = (time_t)delay; 1334 EV_TS_SET (ts, delay);
697 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
698
699 nanosleep (&ts, 0); 1335 nanosleep (&ts, 0);
700#elif defined(_WIN32) 1336#elif defined _WIN32
701 Sleep ((unsigned long)(delay * 1e3)); 1337 Sleep ((unsigned long)(delay * 1e3));
702#else 1338#else
703 struct timeval tv; 1339 struct timeval tv;
704 1340
705 tv.tv_sec = (time_t)delay;
706 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
707
708 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1341 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
709 /* something not guaranteed by newer posix versions, but guaranteed */ 1342 /* something not guaranteed by newer posix versions, but guaranteed */
710 /* by older ones */ 1343 /* by older ones */
1344 EV_TV_SET (tv, delay);
711 select (0, 0, 0, 0, &tv); 1345 select (0, 0, 0, 0, &tv);
712#endif 1346#endif
713 } 1347 }
714} 1348}
715 1349
716/*****************************************************************************/ 1350/*****************************************************************************/
717 1351
718#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1352#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
719 1353
720/* find a suitable new size for the given array, */ 1354/* find a suitable new size for the given array, */
721/* hopefully by rounding to a ncie-to-malloc size */ 1355/* hopefully by rounding to a nice-to-malloc size */
722inline_size int 1356inline_size int
723array_nextsize (int elem, int cur, int cnt) 1357array_nextsize (int elem, int cur, int cnt)
724{ 1358{
725 int ncur = cur + 1; 1359 int ncur = cur + 1;
726 1360
727 do 1361 do
728 ncur <<= 1; 1362 ncur <<= 1;
729 while (cnt > ncur); 1363 while (cnt > ncur);
730 1364
731 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1365 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
732 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1366 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
733 { 1367 {
734 ncur *= elem; 1368 ncur *= elem;
735 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1369 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
736 ncur = ncur - sizeof (void *) * 4; 1370 ncur = ncur - sizeof (void *) * 4;
… …
738 } 1372 }
739 1373
740 return ncur; 1374 return ncur;
741} 1375}
742 1376
743static noinline void * 1377static void * noinline ecb_cold
744array_realloc (int elem, void *base, int *cur, int cnt) 1378array_realloc (int elem, void *base, int *cur, int cnt)
745{ 1379{
746 *cur = array_nextsize (elem, *cur, cnt); 1380 *cur = array_nextsize (elem, *cur, cnt);
747 return ev_realloc (base, elem * *cur); 1381 return ev_realloc (base, elem * *cur);
748} 1382}
… …
751 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1385 memset ((void *)(base), 0, sizeof (*(base)) * (count))
752 1386
753#define array_needsize(type,base,cur,cnt,init) \ 1387#define array_needsize(type,base,cur,cnt,init) \
754 if (expect_false ((cnt) > (cur))) \ 1388 if (expect_false ((cnt) > (cur))) \
755 { \ 1389 { \
756 int ocur_ = (cur); \ 1390 int ecb_unused ocur_ = (cur); \
757 (base) = (type *)array_realloc \ 1391 (base) = (type *)array_realloc \
758 (sizeof (type), (base), &(cur), (cnt)); \ 1392 (sizeof (type), (base), &(cur), (cnt)); \
759 init ((base) + (ocur_), (cur) - ocur_); \ 1393 init ((base) + (ocur_), (cur) - ocur_); \
760 } 1394 }
761 1395
… …
779pendingcb (EV_P_ ev_prepare *w, int revents) 1413pendingcb (EV_P_ ev_prepare *w, int revents)
780{ 1414{
781} 1415}
782 1416
783void noinline 1417void noinline
784ev_feed_event (EV_P_ void *w, int revents) 1418ev_feed_event (EV_P_ void *w, int revents) EV_THROW
785{ 1419{
786 W w_ = (W)w; 1420 W w_ = (W)w;
787 int pri = ABSPRI (w_); 1421 int pri = ABSPRI (w_);
788 1422
789 if (expect_false (w_->pending)) 1423 if (expect_false (w_->pending))
… …
793 w_->pending = ++pendingcnt [pri]; 1427 w_->pending = ++pendingcnt [pri];
794 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1428 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
795 pendings [pri][w_->pending - 1].w = w_; 1429 pendings [pri][w_->pending - 1].w = w_;
796 pendings [pri][w_->pending - 1].events = revents; 1430 pendings [pri][w_->pending - 1].events = revents;
797 } 1431 }
1432
1433 pendingpri = NUMPRI - 1;
798} 1434}
799 1435
800inline_speed void 1436inline_speed void
801feed_reverse (EV_P_ W w) 1437feed_reverse (EV_P_ W w)
802{ 1438{
… …
822} 1458}
823 1459
824/*****************************************************************************/ 1460/*****************************************************************************/
825 1461
826inline_speed void 1462inline_speed void
827fd_event_nc (EV_P_ int fd, int revents) 1463fd_event_nocheck (EV_P_ int fd, int revents)
828{ 1464{
829 ANFD *anfd = anfds + fd; 1465 ANFD *anfd = anfds + fd;
830 ev_io *w; 1466 ev_io *w;
831 1467
832 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1468 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
844fd_event (EV_P_ int fd, int revents) 1480fd_event (EV_P_ int fd, int revents)
845{ 1481{
846 ANFD *anfd = anfds + fd; 1482 ANFD *anfd = anfds + fd;
847 1483
848 if (expect_true (!anfd->reify)) 1484 if (expect_true (!anfd->reify))
849 fd_event_nc (EV_A_ fd, revents); 1485 fd_event_nocheck (EV_A_ fd, revents);
850} 1486}
851 1487
852void 1488void
853ev_feed_fd_event (EV_P_ int fd, int revents) 1489ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
854{ 1490{
855 if (fd >= 0 && fd < anfdmax) 1491 if (fd >= 0 && fd < anfdmax)
856 fd_event_nc (EV_A_ fd, revents); 1492 fd_event_nocheck (EV_A_ fd, revents);
857} 1493}
858 1494
859/* make sure the external fd watch events are in-sync */ 1495/* make sure the external fd watch events are in-sync */
860/* with the kernel/libev internal state */ 1496/* with the kernel/libev internal state */
861inline_size void 1497inline_size void
862fd_reify (EV_P) 1498fd_reify (EV_P)
863{ 1499{
864 int i; 1500 int i;
865 1501
1502#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1503 for (i = 0; i < fdchangecnt; ++i)
1504 {
1505 int fd = fdchanges [i];
1506 ANFD *anfd = anfds + fd;
1507
1508 if (anfd->reify & EV__IOFDSET && anfd->head)
1509 {
1510 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1511
1512 if (handle != anfd->handle)
1513 {
1514 unsigned long arg;
1515
1516 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1517
1518 /* handle changed, but fd didn't - we need to do it in two steps */
1519 backend_modify (EV_A_ fd, anfd->events, 0);
1520 anfd->events = 0;
1521 anfd->handle = handle;
1522 }
1523 }
1524 }
1525#endif
1526
866 for (i = 0; i < fdchangecnt; ++i) 1527 for (i = 0; i < fdchangecnt; ++i)
867 { 1528 {
868 int fd = fdchanges [i]; 1529 int fd = fdchanges [i];
869 ANFD *anfd = anfds + fd; 1530 ANFD *anfd = anfds + fd;
870 ev_io *w; 1531 ev_io *w;
871 1532
872 unsigned char events = 0; 1533 unsigned char o_events = anfd->events;
1534 unsigned char o_reify = anfd->reify;
873 1535
874 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1536 anfd->reify = 0;
875 events |= (unsigned char)w->events;
876 1537
877#if EV_SELECT_IS_WINSOCKET 1538 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
878 if (events)
879 { 1539 {
880 unsigned long arg; 1540 anfd->events = 0;
881 #ifdef EV_FD_TO_WIN32_HANDLE 1541
882 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1542 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
883 #else 1543 anfd->events |= (unsigned char)w->events;
884 anfd->handle = _get_osfhandle (fd); 1544
885 #endif 1545 if (o_events != anfd->events)
886 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1546 o_reify = EV__IOFDSET; /* actually |= */
887 } 1547 }
888#endif
889 1548
890 { 1549 if (o_reify & EV__IOFDSET)
891 unsigned char o_events = anfd->events;
892 unsigned char o_reify = anfd->reify;
893
894 anfd->reify = 0;
895 anfd->events = events;
896
897 if (o_events != events || o_reify & EV__IOFDSET)
898 backend_modify (EV_A_ fd, o_events, events); 1550 backend_modify (EV_A_ fd, o_events, anfd->events);
899 }
900 } 1551 }
901 1552
902 fdchangecnt = 0; 1553 fdchangecnt = 0;
903} 1554}
904 1555
… …
916 fdchanges [fdchangecnt - 1] = fd; 1567 fdchanges [fdchangecnt - 1] = fd;
917 } 1568 }
918} 1569}
919 1570
920/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1571/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
921inline_speed void 1572inline_speed void ecb_cold
922fd_kill (EV_P_ int fd) 1573fd_kill (EV_P_ int fd)
923{ 1574{
924 ev_io *w; 1575 ev_io *w;
925 1576
926 while ((w = (ev_io *)anfds [fd].head)) 1577 while ((w = (ev_io *)anfds [fd].head))
… …
928 ev_io_stop (EV_A_ w); 1579 ev_io_stop (EV_A_ w);
929 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1580 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
930 } 1581 }
931} 1582}
932 1583
933/* check whether the given fd is atcually valid, for error recovery */ 1584/* check whether the given fd is actually valid, for error recovery */
934inline_size int 1585inline_size int ecb_cold
935fd_valid (int fd) 1586fd_valid (int fd)
936{ 1587{
937#ifdef _WIN32 1588#ifdef _WIN32
938 return _get_osfhandle (fd) != -1; 1589 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
939#else 1590#else
940 return fcntl (fd, F_GETFD) != -1; 1591 return fcntl (fd, F_GETFD) != -1;
941#endif 1592#endif
942} 1593}
943 1594
944/* called on EBADF to verify fds */ 1595/* called on EBADF to verify fds */
945static void noinline 1596static void noinline ecb_cold
946fd_ebadf (EV_P) 1597fd_ebadf (EV_P)
947{ 1598{
948 int fd; 1599 int fd;
949 1600
950 for (fd = 0; fd < anfdmax; ++fd) 1601 for (fd = 0; fd < anfdmax; ++fd)
… …
952 if (!fd_valid (fd) && errno == EBADF) 1603 if (!fd_valid (fd) && errno == EBADF)
953 fd_kill (EV_A_ fd); 1604 fd_kill (EV_A_ fd);
954} 1605}
955 1606
956/* called on ENOMEM in select/poll to kill some fds and retry */ 1607/* called on ENOMEM in select/poll to kill some fds and retry */
957static void noinline 1608static void noinline ecb_cold
958fd_enomem (EV_P) 1609fd_enomem (EV_P)
959{ 1610{
960 int fd; 1611 int fd;
961 1612
962 for (fd = anfdmax; fd--; ) 1613 for (fd = anfdmax; fd--; )
… …
980 anfds [fd].emask = 0; 1631 anfds [fd].emask = 0;
981 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1632 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
982 } 1633 }
983} 1634}
984 1635
1636/* used to prepare libev internal fd's */
1637/* this is not fork-safe */
1638inline_speed void
1639fd_intern (int fd)
1640{
1641#ifdef _WIN32
1642 unsigned long arg = 1;
1643 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1644#else
1645 fcntl (fd, F_SETFD, FD_CLOEXEC);
1646 fcntl (fd, F_SETFL, O_NONBLOCK);
1647#endif
1648}
1649
985/*****************************************************************************/ 1650/*****************************************************************************/
986 1651
987/* 1652/*
988 * the heap functions want a real array index. array index 0 uis guaranteed to not 1653 * the heap functions want a real array index. array index 0 is guaranteed to not
989 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1654 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
990 * the branching factor of the d-tree. 1655 * the branching factor of the d-tree.
991 */ 1656 */
992 1657
993/* 1658/*
… …
1141 1806
1142static ANSIG signals [EV_NSIG - 1]; 1807static ANSIG signals [EV_NSIG - 1];
1143 1808
1144/*****************************************************************************/ 1809/*****************************************************************************/
1145 1810
1146/* used to prepare libev internal fd's */ 1811#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1147/* this is not fork-safe */
1148inline_speed void
1149fd_intern (int fd)
1150{
1151#ifdef _WIN32
1152 unsigned long arg = 1;
1153 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1154#else
1155 fcntl (fd, F_SETFD, FD_CLOEXEC);
1156 fcntl (fd, F_SETFL, O_NONBLOCK);
1157#endif
1158}
1159 1812
1160static void noinline 1813static void noinline ecb_cold
1161evpipe_init (EV_P) 1814evpipe_init (EV_P)
1162{ 1815{
1163 if (!ev_is_active (&pipe_w)) 1816 if (!ev_is_active (&pipe_w))
1164 { 1817 {
1165#if EV_USE_EVENTFD 1818# if EV_USE_EVENTFD
1166 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1819 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1167 if (evfd < 0 && errno == EINVAL) 1820 if (evfd < 0 && errno == EINVAL)
1168 evfd = eventfd (0, 0); 1821 evfd = eventfd (0, 0);
1169 1822
1170 if (evfd >= 0) 1823 if (evfd >= 0)
… …
1172 evpipe [0] = -1; 1825 evpipe [0] = -1;
1173 fd_intern (evfd); /* doing it twice doesn't hurt */ 1826 fd_intern (evfd); /* doing it twice doesn't hurt */
1174 ev_io_set (&pipe_w, evfd, EV_READ); 1827 ev_io_set (&pipe_w, evfd, EV_READ);
1175 } 1828 }
1176 else 1829 else
1177#endif 1830# endif
1178 { 1831 {
1179 while (pipe (evpipe)) 1832 while (pipe (evpipe))
1180 ev_syserr ("(libev) error creating signal/async pipe"); 1833 ev_syserr ("(libev) error creating signal/async pipe");
1181 1834
1182 fd_intern (evpipe [0]); 1835 fd_intern (evpipe [0]);
… …
1187 ev_io_start (EV_A_ &pipe_w); 1840 ev_io_start (EV_A_ &pipe_w);
1188 ev_unref (EV_A); /* watcher should not keep loop alive */ 1841 ev_unref (EV_A); /* watcher should not keep loop alive */
1189 } 1842 }
1190} 1843}
1191 1844
1192inline_size void 1845inline_speed void
1193evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1846evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1194{ 1847{
1195 if (!*flag) 1848 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1849
1850 if (expect_true (*flag))
1851 return;
1852
1853 *flag = 1;
1854
1855 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1856
1857 pipe_write_skipped = 1;
1858
1859 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1860
1861 if (pipe_write_wanted)
1196 { 1862 {
1863 int old_errno;
1864
1865 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1866
1197 int old_errno = errno; /* save errno because write might clobber it */ 1867 old_errno = errno; /* save errno because write will clobber it */
1198
1199 *flag = 1;
1200 1868
1201#if EV_USE_EVENTFD 1869#if EV_USE_EVENTFD
1202 if (evfd >= 0) 1870 if (evfd >= 0)
1203 { 1871 {
1204 uint64_t counter = 1; 1872 uint64_t counter = 1;
1205 write (evfd, &counter, sizeof (uint64_t)); 1873 write (evfd, &counter, sizeof (uint64_t));
1206 } 1874 }
1207 else 1875 else
1208#endif 1876#endif
1877 {
1878#ifdef _WIN32
1879 WSABUF buf;
1880 DWORD sent;
1881 buf.buf = &buf;
1882 buf.len = 1;
1883 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1884#else
1209 write (evpipe [1], &old_errno, 1); 1885 write (evpipe [1], &(evpipe [1]), 1);
1886#endif
1887 }
1210 1888
1211 errno = old_errno; 1889 errno = old_errno;
1212 } 1890 }
1213} 1891}
1214 1892
… …
1217static void 1895static void
1218pipecb (EV_P_ ev_io *iow, int revents) 1896pipecb (EV_P_ ev_io *iow, int revents)
1219{ 1897{
1220 int i; 1898 int i;
1221 1899
1900 if (revents & EV_READ)
1901 {
1222#if EV_USE_EVENTFD 1902#if EV_USE_EVENTFD
1223 if (evfd >= 0) 1903 if (evfd >= 0)
1224 { 1904 {
1225 uint64_t counter; 1905 uint64_t counter;
1226 read (evfd, &counter, sizeof (uint64_t)); 1906 read (evfd, &counter, sizeof (uint64_t));
1227 } 1907 }
1228 else 1908 else
1229#endif 1909#endif
1230 { 1910 {
1231 char dummy; 1911 char dummy[4];
1912#ifdef _WIN32
1913 WSABUF buf;
1914 DWORD recvd;
1915 DWORD flags = 0;
1916 buf.buf = dummy;
1917 buf.len = sizeof (dummy);
1918 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1919#else
1232 read (evpipe [0], &dummy, 1); 1920 read (evpipe [0], &dummy, sizeof (dummy));
1921#endif
1922 }
1233 } 1923 }
1234 1924
1925 pipe_write_skipped = 0;
1926
1927 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1928
1929#if EV_SIGNAL_ENABLE
1235 if (sig_pending) 1930 if (sig_pending)
1236 { 1931 {
1237 sig_pending = 0; 1932 sig_pending = 0;
1933
1934 ECB_MEMORY_FENCE_RELEASE;
1238 1935
1239 for (i = EV_NSIG - 1; i--; ) 1936 for (i = EV_NSIG - 1; i--; )
1240 if (expect_false (signals [i].pending)) 1937 if (expect_false (signals [i].pending))
1241 ev_feed_signal_event (EV_A_ i + 1); 1938 ev_feed_signal_event (EV_A_ i + 1);
1242 } 1939 }
1940#endif
1243 1941
1244#if EV_ASYNC_ENABLE 1942#if EV_ASYNC_ENABLE
1245 if (async_pending) 1943 if (async_pending)
1246 { 1944 {
1247 async_pending = 0; 1945 async_pending = 0;
1946
1947 ECB_MEMORY_FENCE_RELEASE;
1248 1948
1249 for (i = asynccnt; i--; ) 1949 for (i = asynccnt; i--; )
1250 if (asyncs [i]->sent) 1950 if (asyncs [i]->sent)
1251 { 1951 {
1252 asyncs [i]->sent = 0; 1952 asyncs [i]->sent = 0;
… …
1256#endif 1956#endif
1257} 1957}
1258 1958
1259/*****************************************************************************/ 1959/*****************************************************************************/
1260 1960
1961void
1962ev_feed_signal (int signum) EV_THROW
1963{
1964#if EV_MULTIPLICITY
1965 EV_P = signals [signum - 1].loop;
1966
1967 if (!EV_A)
1968 return;
1969#endif
1970
1971 if (!ev_active (&pipe_w))
1972 return;
1973
1974 signals [signum - 1].pending = 1;
1975 evpipe_write (EV_A_ &sig_pending);
1976}
1977
1261static void 1978static void
1262ev_sighandler (int signum) 1979ev_sighandler (int signum)
1263{ 1980{
1264#if EV_MULTIPLICITY
1265 EV_P = signals [signum - 1].loop;
1266#endif
1267
1268#if _WIN32 1981#ifdef _WIN32
1269 signal (signum, ev_sighandler); 1982 signal (signum, ev_sighandler);
1270#endif 1983#endif
1271 1984
1272 signals [signum - 1].pending = 1; 1985 ev_feed_signal (signum);
1273 evpipe_write (EV_A_ &sig_pending);
1274} 1986}
1275 1987
1276void noinline 1988void noinline
1277ev_feed_signal_event (EV_P_ int signum) 1989ev_feed_signal_event (EV_P_ int signum) EV_THROW
1278{ 1990{
1279 WL w; 1991 WL w;
1280 1992
1281 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1993 if (expect_false (signum <= 0 || signum > EV_NSIG))
1282 return; 1994 return;
… …
1315 break; 2027 break;
1316 } 2028 }
1317} 2029}
1318#endif 2030#endif
1319 2031
2032#endif
2033
1320/*****************************************************************************/ 2034/*****************************************************************************/
1321 2035
2036#if EV_CHILD_ENABLE
1322static WL childs [EV_PID_HASHSIZE]; 2037static WL childs [EV_PID_HASHSIZE];
1323
1324#ifndef _WIN32
1325 2038
1326static ev_signal childev; 2039static ev_signal childev;
1327 2040
1328#ifndef WIFCONTINUED 2041#ifndef WIFCONTINUED
1329# define WIFCONTINUED(status) 0 2042# define WIFCONTINUED(status) 0
… …
1334child_reap (EV_P_ int chain, int pid, int status) 2047child_reap (EV_P_ int chain, int pid, int status)
1335{ 2048{
1336 ev_child *w; 2049 ev_child *w;
1337 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2050 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1338 2051
1339 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2052 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1340 { 2053 {
1341 if ((w->pid == pid || !w->pid) 2054 if ((w->pid == pid || !w->pid)
1342 && (!traced || (w->flags & 1))) 2055 && (!traced || (w->flags & 1)))
1343 { 2056 {
1344 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2057 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1369 /* make sure we are called again until all children have been reaped */ 2082 /* make sure we are called again until all children have been reaped */
1370 /* we need to do it this way so that the callback gets called before we continue */ 2083 /* we need to do it this way so that the callback gets called before we continue */
1371 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2084 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1372 2085
1373 child_reap (EV_A_ pid, pid, status); 2086 child_reap (EV_A_ pid, pid, status);
1374 if (EV_PID_HASHSIZE > 1) 2087 if ((EV_PID_HASHSIZE) > 1)
1375 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2088 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1376} 2089}
1377 2090
1378#endif 2091#endif
1379 2092
1380/*****************************************************************************/ 2093/*****************************************************************************/
1381 2094
2095#if EV_USE_IOCP
2096# include "ev_iocp.c"
2097#endif
1382#if EV_USE_PORT 2098#if EV_USE_PORT
1383# include "ev_port.c" 2099# include "ev_port.c"
1384#endif 2100#endif
1385#if EV_USE_KQUEUE 2101#if EV_USE_KQUEUE
1386# include "ev_kqueue.c" 2102# include "ev_kqueue.c"
… …
1393#endif 2109#endif
1394#if EV_USE_SELECT 2110#if EV_USE_SELECT
1395# include "ev_select.c" 2111# include "ev_select.c"
1396#endif 2112#endif
1397 2113
1398int 2114int ecb_cold
1399ev_version_major (void) 2115ev_version_major (void) EV_THROW
1400{ 2116{
1401 return EV_VERSION_MAJOR; 2117 return EV_VERSION_MAJOR;
1402} 2118}
1403 2119
1404int 2120int ecb_cold
1405ev_version_minor (void) 2121ev_version_minor (void) EV_THROW
1406{ 2122{
1407 return EV_VERSION_MINOR; 2123 return EV_VERSION_MINOR;
1408} 2124}
1409 2125
1410/* return true if we are running with elevated privileges and should ignore env variables */ 2126/* return true if we are running with elevated privileges and should ignore env variables */
1411int inline_size 2127int inline_size ecb_cold
1412enable_secure (void) 2128enable_secure (void)
1413{ 2129{
1414#ifdef _WIN32 2130#ifdef _WIN32
1415 return 0; 2131 return 0;
1416#else 2132#else
1417 return getuid () != geteuid () 2133 return getuid () != geteuid ()
1418 || getgid () != getegid (); 2134 || getgid () != getegid ();
1419#endif 2135#endif
1420} 2136}
1421 2137
1422unsigned int 2138unsigned int ecb_cold
1423ev_supported_backends (void) 2139ev_supported_backends (void) EV_THROW
1424{ 2140{
1425 unsigned int flags = 0; 2141 unsigned int flags = 0;
1426 2142
1427 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2143 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1428 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2144 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1431 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2147 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1432 2148
1433 return flags; 2149 return flags;
1434} 2150}
1435 2151
1436unsigned int 2152unsigned int ecb_cold
1437ev_recommended_backends (void) 2153ev_recommended_backends (void) EV_THROW
1438{ 2154{
1439 unsigned int flags = ev_supported_backends (); 2155 unsigned int flags = ev_supported_backends ();
1440 2156
1441#ifndef __NetBSD__ 2157#ifndef __NetBSD__
1442 /* kqueue is borked on everything but netbsd apparently */ 2158 /* kqueue is borked on everything but netbsd apparently */
… …
1446#ifdef __APPLE__ 2162#ifdef __APPLE__
1447 /* only select works correctly on that "unix-certified" platform */ 2163 /* only select works correctly on that "unix-certified" platform */
1448 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2164 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1449 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2165 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1450#endif 2166#endif
2167#ifdef __FreeBSD__
2168 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2169#endif
1451 2170
1452 return flags; 2171 return flags;
1453} 2172}
1454 2173
2174unsigned int ecb_cold
2175ev_embeddable_backends (void) EV_THROW
2176{
2177 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2178
2179 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2180 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2181 flags &= ~EVBACKEND_EPOLL;
2182
2183 return flags;
2184}
2185
1455unsigned int 2186unsigned int
1456ev_embeddable_backends (void) 2187ev_backend (EV_P) EV_THROW
1457{ 2188{
1458 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2189 return backend;
1459
1460 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1461 /* please fix it and tell me how to detect the fix */
1462 flags &= ~EVBACKEND_EPOLL;
1463
1464 return flags;
1465} 2190}
1466 2191
2192#if EV_FEATURE_API
1467unsigned int 2193unsigned int
1468ev_backend (EV_P) 2194ev_iteration (EV_P) EV_THROW
1469{ 2195{
1470 return backend; 2196 return loop_count;
1471} 2197}
1472 2198
1473#if EV_MINIMAL < 2
1474unsigned int 2199unsigned int
1475ev_loop_count (EV_P) 2200ev_depth (EV_P) EV_THROW
1476{
1477 return loop_count;
1478}
1479
1480unsigned int
1481ev_loop_depth (EV_P)
1482{ 2201{
1483 return loop_depth; 2202 return loop_depth;
1484} 2203}
1485 2204
1486void 2205void
1487ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1488{ 2207{
1489 io_blocktime = interval; 2208 io_blocktime = interval;
1490} 2209}
1491 2210
1492void 2211void
1493ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2212ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1494{ 2213{
1495 timeout_blocktime = interval; 2214 timeout_blocktime = interval;
1496} 2215}
1497 2216
1498void 2217void
1499ev_set_userdata (EV_P_ void *data) 2218ev_set_userdata (EV_P_ void *data) EV_THROW
1500{ 2219{
1501 userdata = data; 2220 userdata = data;
1502} 2221}
1503 2222
1504void * 2223void *
1505ev_userdata (EV_P) 2224ev_userdata (EV_P) EV_THROW
1506{ 2225{
1507 return userdata; 2226 return userdata;
1508} 2227}
1509 2228
2229void
1510void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2230ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1511{ 2231{
1512 invoke_cb = invoke_pending_cb; 2232 invoke_cb = invoke_pending_cb;
1513} 2233}
1514 2234
2235void
1515void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2236ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1516{ 2237{
1517 release_cb = release; 2238 release_cb = release;
1518 acquire_cb = acquire; 2239 acquire_cb = acquire;
1519} 2240}
1520#endif 2241#endif
1521 2242
1522/* initialise a loop structure, must be zero-initialised */ 2243/* initialise a loop structure, must be zero-initialised */
1523static void noinline 2244static void noinline ecb_cold
1524loop_init (EV_P_ unsigned int flags) 2245loop_init (EV_P_ unsigned int flags) EV_THROW
1525{ 2246{
1526 if (!backend) 2247 if (!backend)
1527 { 2248 {
2249 origflags = flags;
2250
1528#if EV_USE_REALTIME 2251#if EV_USE_REALTIME
1529 if (!have_realtime) 2252 if (!have_realtime)
1530 { 2253 {
1531 struct timespec ts; 2254 struct timespec ts;
1532 2255
… …
1554 if (!(flags & EVFLAG_NOENV) 2277 if (!(flags & EVFLAG_NOENV)
1555 && !enable_secure () 2278 && !enable_secure ()
1556 && getenv ("LIBEV_FLAGS")) 2279 && getenv ("LIBEV_FLAGS"))
1557 flags = atoi (getenv ("LIBEV_FLAGS")); 2280 flags = atoi (getenv ("LIBEV_FLAGS"));
1558 2281
1559 ev_rt_now = ev_time (); 2282 ev_rt_now = ev_time ();
1560 mn_now = get_clock (); 2283 mn_now = get_clock ();
1561 now_floor = mn_now; 2284 now_floor = mn_now;
1562 rtmn_diff = ev_rt_now - mn_now; 2285 rtmn_diff = ev_rt_now - mn_now;
1563#if EV_MINIMAL < 2 2286#if EV_FEATURE_API
1564 invoke_cb = ev_invoke_pending; 2287 invoke_cb = ev_invoke_pending;
1565#endif 2288#endif
1566 2289
1567 io_blocktime = 0.; 2290 io_blocktime = 0.;
1568 timeout_blocktime = 0.; 2291 timeout_blocktime = 0.;
1569 backend = 0; 2292 backend = 0;
1570 backend_fd = -1; 2293 backend_fd = -1;
1571 sig_pending = 0; 2294 sig_pending = 0;
1572#if EV_ASYNC_ENABLE 2295#if EV_ASYNC_ENABLE
1573 async_pending = 0; 2296 async_pending = 0;
1574#endif 2297#endif
2298 pipe_write_skipped = 0;
2299 pipe_write_wanted = 0;
1575#if EV_USE_INOTIFY 2300#if EV_USE_INOTIFY
1576 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2301 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1577#endif 2302#endif
1578#if EV_USE_SIGNALFD 2303#if EV_USE_SIGNALFD
1579 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; 2304 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1580#endif 2305#endif
1581 2306
1582 if (!(flags & 0x0000ffffU)) 2307 if (!(flags & EVBACKEND_MASK))
1583 flags |= ev_recommended_backends (); 2308 flags |= ev_recommended_backends ();
1584 2309
2310#if EV_USE_IOCP
2311 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2312#endif
1585#if EV_USE_PORT 2313#if EV_USE_PORT
1586 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2314 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1587#endif 2315#endif
1588#if EV_USE_KQUEUE 2316#if EV_USE_KQUEUE
1589 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1598 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2326 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1599#endif 2327#endif
1600 2328
1601 ev_prepare_init (&pending_w, pendingcb); 2329 ev_prepare_init (&pending_w, pendingcb);
1602 2330
2331#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1603 ev_init (&pipe_w, pipecb); 2332 ev_init (&pipe_w, pipecb);
1604 ev_set_priority (&pipe_w, EV_MAXPRI); 2333 ev_set_priority (&pipe_w, EV_MAXPRI);
2334#endif
1605 } 2335 }
1606} 2336}
1607 2337
1608/* free up a loop structure */ 2338/* free up a loop structure */
1609static void noinline 2339void ecb_cold
1610loop_destroy (EV_P) 2340ev_loop_destroy (EV_P)
1611{ 2341{
1612 int i; 2342 int i;
2343
2344#if EV_MULTIPLICITY
2345 /* mimic free (0) */
2346 if (!EV_A)
2347 return;
2348#endif
2349
2350#if EV_CLEANUP_ENABLE
2351 /* queue cleanup watchers (and execute them) */
2352 if (expect_false (cleanupcnt))
2353 {
2354 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2355 EV_INVOKE_PENDING;
2356 }
2357#endif
2358
2359#if EV_CHILD_ENABLE
2360 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2361 {
2362 ev_ref (EV_A); /* child watcher */
2363 ev_signal_stop (EV_A_ &childev);
2364 }
2365#endif
1613 2366
1614 if (ev_is_active (&pipe_w)) 2367 if (ev_is_active (&pipe_w))
1615 { 2368 {
1616 /*ev_ref (EV_A);*/ 2369 /*ev_ref (EV_A);*/
1617 /*ev_io_stop (EV_A_ &pipe_w);*/ 2370 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1621 close (evfd); 2374 close (evfd);
1622#endif 2375#endif
1623 2376
1624 if (evpipe [0] >= 0) 2377 if (evpipe [0] >= 0)
1625 { 2378 {
1626 close (evpipe [0]); 2379 EV_WIN32_CLOSE_FD (evpipe [0]);
1627 close (evpipe [1]); 2380 EV_WIN32_CLOSE_FD (evpipe [1]);
1628 } 2381 }
1629 } 2382 }
1630 2383
1631#if EV_USE_SIGNALFD 2384#if EV_USE_SIGNALFD
1632 if (ev_is_active (&sigfd_w)) 2385 if (ev_is_active (&sigfd_w))
1633 {
1634 /*ev_ref (EV_A);*/
1635 /*ev_io_stop (EV_A_ &sigfd_w);*/
1636
1637 close (sigfd); 2386 close (sigfd);
1638 }
1639#endif 2387#endif
1640 2388
1641#if EV_USE_INOTIFY 2389#if EV_USE_INOTIFY
1642 if (fs_fd >= 0) 2390 if (fs_fd >= 0)
1643 close (fs_fd); 2391 close (fs_fd);
1644#endif 2392#endif
1645 2393
1646 if (backend_fd >= 0) 2394 if (backend_fd >= 0)
1647 close (backend_fd); 2395 close (backend_fd);
1648 2396
2397#if EV_USE_IOCP
2398 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2399#endif
1649#if EV_USE_PORT 2400#if EV_USE_PORT
1650 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2401 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1651#endif 2402#endif
1652#if EV_USE_KQUEUE 2403#if EV_USE_KQUEUE
1653 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2404 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1680 array_free (periodic, EMPTY); 2431 array_free (periodic, EMPTY);
1681#endif 2432#endif
1682#if EV_FORK_ENABLE 2433#if EV_FORK_ENABLE
1683 array_free (fork, EMPTY); 2434 array_free (fork, EMPTY);
1684#endif 2435#endif
2436#if EV_CLEANUP_ENABLE
2437 array_free (cleanup, EMPTY);
2438#endif
1685 array_free (prepare, EMPTY); 2439 array_free (prepare, EMPTY);
1686 array_free (check, EMPTY); 2440 array_free (check, EMPTY);
1687#if EV_ASYNC_ENABLE 2441#if EV_ASYNC_ENABLE
1688 array_free (async, EMPTY); 2442 array_free (async, EMPTY);
1689#endif 2443#endif
1690 2444
1691 backend = 0; 2445 backend = 0;
2446
2447#if EV_MULTIPLICITY
2448 if (ev_is_default_loop (EV_A))
2449#endif
2450 ev_default_loop_ptr = 0;
2451#if EV_MULTIPLICITY
2452 else
2453 ev_free (EV_A);
2454#endif
1692} 2455}
1693 2456
1694#if EV_USE_INOTIFY 2457#if EV_USE_INOTIFY
1695inline_size void infy_fork (EV_P); 2458inline_size void infy_fork (EV_P);
1696#endif 2459#endif
… …
1711 infy_fork (EV_A); 2474 infy_fork (EV_A);
1712#endif 2475#endif
1713 2476
1714 if (ev_is_active (&pipe_w)) 2477 if (ev_is_active (&pipe_w))
1715 { 2478 {
1716 /* this "locks" the handlers against writing to the pipe */ 2479 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1717 /* while we modify the fd vars */
1718 sig_pending = 1;
1719#if EV_ASYNC_ENABLE
1720 async_pending = 1;
1721#endif
1722 2480
1723 ev_ref (EV_A); 2481 ev_ref (EV_A);
1724 ev_io_stop (EV_A_ &pipe_w); 2482 ev_io_stop (EV_A_ &pipe_w);
1725 2483
1726#if EV_USE_EVENTFD 2484#if EV_USE_EVENTFD
… …
1728 close (evfd); 2486 close (evfd);
1729#endif 2487#endif
1730 2488
1731 if (evpipe [0] >= 0) 2489 if (evpipe [0] >= 0)
1732 { 2490 {
1733 close (evpipe [0]); 2491 EV_WIN32_CLOSE_FD (evpipe [0]);
1734 close (evpipe [1]); 2492 EV_WIN32_CLOSE_FD (evpipe [1]);
1735 } 2493 }
1736 2494
2495#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1737 evpipe_init (EV_A); 2496 evpipe_init (EV_A);
1738 /* now iterate over everything, in case we missed something */ 2497 /* now iterate over everything, in case we missed something */
1739 pipecb (EV_A_ &pipe_w, EV_READ); 2498 pipecb (EV_A_ &pipe_w, EV_READ);
2499#endif
1740 } 2500 }
1741 2501
1742 postfork = 0; 2502 postfork = 0;
1743} 2503}
1744 2504
1745#if EV_MULTIPLICITY 2505#if EV_MULTIPLICITY
1746 2506
1747struct ev_loop * 2507struct ev_loop * ecb_cold
1748ev_loop_new (unsigned int flags) 2508ev_loop_new (unsigned int flags) EV_THROW
1749{ 2509{
1750 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2510 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1751 2511
1752 memset (EV_A, 0, sizeof (struct ev_loop)); 2512 memset (EV_A, 0, sizeof (struct ev_loop));
1753 loop_init (EV_A_ flags); 2513 loop_init (EV_A_ flags);
1754 2514
1755 if (ev_backend (EV_A)) 2515 if (ev_backend (EV_A))
1756 return EV_A; 2516 return EV_A;
1757 2517
2518 ev_free (EV_A);
1758 return 0; 2519 return 0;
1759} 2520}
1760 2521
1761void
1762ev_loop_destroy (EV_P)
1763{
1764 loop_destroy (EV_A);
1765 ev_free (loop);
1766}
1767
1768void
1769ev_loop_fork (EV_P)
1770{
1771 postfork = 1; /* must be in line with ev_default_fork */
1772}
1773#endif /* multiplicity */ 2522#endif /* multiplicity */
1774 2523
1775#if EV_VERIFY 2524#if EV_VERIFY
1776static void noinline 2525static void noinline ecb_cold
1777verify_watcher (EV_P_ W w) 2526verify_watcher (EV_P_ W w)
1778{ 2527{
1779 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2528 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1780 2529
1781 if (w->pending) 2530 if (w->pending)
1782 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2531 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1783} 2532}
1784 2533
1785static void noinline 2534static void noinline ecb_cold
1786verify_heap (EV_P_ ANHE *heap, int N) 2535verify_heap (EV_P_ ANHE *heap, int N)
1787{ 2536{
1788 int i; 2537 int i;
1789 2538
1790 for (i = HEAP0; i < N + HEAP0; ++i) 2539 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1795 2544
1796 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2545 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1797 } 2546 }
1798} 2547}
1799 2548
1800static void noinline 2549static void noinline ecb_cold
1801array_verify (EV_P_ W *ws, int cnt) 2550array_verify (EV_P_ W *ws, int cnt)
1802{ 2551{
1803 while (cnt--) 2552 while (cnt--)
1804 { 2553 {
1805 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2554 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1806 verify_watcher (EV_A_ ws [cnt]); 2555 verify_watcher (EV_A_ ws [cnt]);
1807 } 2556 }
1808} 2557}
1809#endif 2558#endif
1810 2559
1811#if EV_MINIMAL < 2 2560#if EV_FEATURE_API
1812void 2561void ecb_cold
1813ev_loop_verify (EV_P) 2562ev_verify (EV_P) EV_THROW
1814{ 2563{
1815#if EV_VERIFY 2564#if EV_VERIFY
1816 int i; 2565 int i;
1817 WL w; 2566 WL w, w2;
1818 2567
1819 assert (activecnt >= -1); 2568 assert (activecnt >= -1);
1820 2569
1821 assert (fdchangemax >= fdchangecnt); 2570 assert (fdchangemax >= fdchangecnt);
1822 for (i = 0; i < fdchangecnt; ++i) 2571 for (i = 0; i < fdchangecnt; ++i)
1823 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2572 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1824 2573
1825 assert (anfdmax >= 0); 2574 assert (anfdmax >= 0);
1826 for (i = 0; i < anfdmax; ++i) 2575 for (i = 0; i < anfdmax; ++i)
2576 {
2577 int j = 0;
2578
1827 for (w = anfds [i].head; w; w = w->next) 2579 for (w = w2 = anfds [i].head; w; w = w->next)
1828 { 2580 {
1829 verify_watcher (EV_A_ (W)w); 2581 verify_watcher (EV_A_ (W)w);
2582
2583 if (j++ & 1)
2584 {
2585 assert (("libev: io watcher list contains a loop", w != w2));
2586 w2 = w2->next;
2587 }
2588
1830 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2589 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1831 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2590 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1832 } 2591 }
2592 }
1833 2593
1834 assert (timermax >= timercnt); 2594 assert (timermax >= timercnt);
1835 verify_heap (EV_A_ timers, timercnt); 2595 verify_heap (EV_A_ timers, timercnt);
1836 2596
1837#if EV_PERIODIC_ENABLE 2597#if EV_PERIODIC_ENABLE
… …
1852#if EV_FORK_ENABLE 2612#if EV_FORK_ENABLE
1853 assert (forkmax >= forkcnt); 2613 assert (forkmax >= forkcnt);
1854 array_verify (EV_A_ (W *)forks, forkcnt); 2614 array_verify (EV_A_ (W *)forks, forkcnt);
1855#endif 2615#endif
1856 2616
2617#if EV_CLEANUP_ENABLE
2618 assert (cleanupmax >= cleanupcnt);
2619 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2620#endif
2621
1857#if EV_ASYNC_ENABLE 2622#if EV_ASYNC_ENABLE
1858 assert (asyncmax >= asynccnt); 2623 assert (asyncmax >= asynccnt);
1859 array_verify (EV_A_ (W *)asyncs, asynccnt); 2624 array_verify (EV_A_ (W *)asyncs, asynccnt);
1860#endif 2625#endif
1861 2626
2627#if EV_PREPARE_ENABLE
1862 assert (preparemax >= preparecnt); 2628 assert (preparemax >= preparecnt);
1863 array_verify (EV_A_ (W *)prepares, preparecnt); 2629 array_verify (EV_A_ (W *)prepares, preparecnt);
2630#endif
1864 2631
2632#if EV_CHECK_ENABLE
1865 assert (checkmax >= checkcnt); 2633 assert (checkmax >= checkcnt);
1866 array_verify (EV_A_ (W *)checks, checkcnt); 2634 array_verify (EV_A_ (W *)checks, checkcnt);
2635#endif
1867 2636
1868# if 0 2637# if 0
2638#if EV_CHILD_ENABLE
1869 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2639 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1870 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2640 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2641#endif
1871# endif 2642# endif
1872#endif 2643#endif
1873} 2644}
1874#endif 2645#endif
1875 2646
1876#if EV_MULTIPLICITY 2647#if EV_MULTIPLICITY
1877struct ev_loop * 2648struct ev_loop * ecb_cold
1878ev_default_loop_init (unsigned int flags)
1879#else 2649#else
1880int 2650int
2651#endif
1881ev_default_loop (unsigned int flags) 2652ev_default_loop (unsigned int flags) EV_THROW
1882#endif
1883{ 2653{
1884 if (!ev_default_loop_ptr) 2654 if (!ev_default_loop_ptr)
1885 { 2655 {
1886#if EV_MULTIPLICITY 2656#if EV_MULTIPLICITY
1887 EV_P = ev_default_loop_ptr = &default_loop_struct; 2657 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1891 2661
1892 loop_init (EV_A_ flags); 2662 loop_init (EV_A_ flags);
1893 2663
1894 if (ev_backend (EV_A)) 2664 if (ev_backend (EV_A))
1895 { 2665 {
1896#ifndef _WIN32 2666#if EV_CHILD_ENABLE
1897 ev_signal_init (&childev, childcb, SIGCHLD); 2667 ev_signal_init (&childev, childcb, SIGCHLD);
1898 ev_set_priority (&childev, EV_MAXPRI); 2668 ev_set_priority (&childev, EV_MAXPRI);
1899 ev_signal_start (EV_A_ &childev); 2669 ev_signal_start (EV_A_ &childev);
1900 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2670 ev_unref (EV_A); /* child watcher should not keep loop alive */
1901#endif 2671#endif
… …
1906 2676
1907 return ev_default_loop_ptr; 2677 return ev_default_loop_ptr;
1908} 2678}
1909 2679
1910void 2680void
1911ev_default_destroy (void) 2681ev_loop_fork (EV_P) EV_THROW
1912{ 2682{
1913#if EV_MULTIPLICITY
1914 EV_P = ev_default_loop_ptr;
1915#endif
1916
1917 ev_default_loop_ptr = 0;
1918
1919#ifndef _WIN32
1920 ev_ref (EV_A); /* child watcher */
1921 ev_signal_stop (EV_A_ &childev);
1922#endif
1923
1924 loop_destroy (EV_A);
1925}
1926
1927void
1928ev_default_fork (void)
1929{
1930#if EV_MULTIPLICITY
1931 EV_P = ev_default_loop_ptr;
1932#endif
1933
1934 postfork = 1; /* must be in line with ev_loop_fork */ 2683 postfork = 1; /* must be in line with ev_default_fork */
1935} 2684}
1936 2685
1937/*****************************************************************************/ 2686/*****************************************************************************/
1938 2687
1939void 2688void
… …
1941{ 2690{
1942 EV_CB_INVOKE ((W)w, revents); 2691 EV_CB_INVOKE ((W)w, revents);
1943} 2692}
1944 2693
1945unsigned int 2694unsigned int
1946ev_pending_count (EV_P) 2695ev_pending_count (EV_P) EV_THROW
1947{ 2696{
1948 int pri; 2697 int pri;
1949 unsigned int count = 0; 2698 unsigned int count = 0;
1950 2699
1951 for (pri = NUMPRI; pri--; ) 2700 for (pri = NUMPRI; pri--; )
… …
1955} 2704}
1956 2705
1957void noinline 2706void noinline
1958ev_invoke_pending (EV_P) 2707ev_invoke_pending (EV_P)
1959{ 2708{
1960 int pri; 2709 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1961
1962 for (pri = NUMPRI; pri--; )
1963 while (pendingcnt [pri]) 2710 while (pendingcnt [pendingpri])
1964 { 2711 {
1965 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2712 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1966
1967 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1968 /* ^ this is no longer true, as pending_w could be here */
1969 2713
1970 p->w->pending = 0; 2714 p->w->pending = 0;
1971 EV_CB_INVOKE (p->w, p->events); 2715 EV_CB_INVOKE (p->w, p->events);
1972 EV_FREQUENT_CHECK; 2716 EV_FREQUENT_CHECK;
1973 } 2717 }
… …
2030 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2031 feed_reverse (EV_A_ (W)w); 2775 feed_reverse (EV_A_ (W)w);
2032 } 2776 }
2033 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2777 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2034 2778
2035 feed_reverse_done (EV_A_ EV_TIMEOUT); 2779 feed_reverse_done (EV_A_ EV_TIMER);
2036 } 2780 }
2037} 2781}
2038 2782
2039#if EV_PERIODIC_ENABLE 2783#if EV_PERIODIC_ENABLE
2784
2785static void noinline
2786periodic_recalc (EV_P_ ev_periodic *w)
2787{
2788 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2789 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2790
2791 /* the above almost always errs on the low side */
2792 while (at <= ev_rt_now)
2793 {
2794 ev_tstamp nat = at + w->interval;
2795
2796 /* when resolution fails us, we use ev_rt_now */
2797 if (expect_false (nat == at))
2798 {
2799 at = ev_rt_now;
2800 break;
2801 }
2802
2803 at = nat;
2804 }
2805
2806 ev_at (w) = at;
2807}
2808
2040/* make periodics pending */ 2809/* make periodics pending */
2041inline_size void 2810inline_size void
2042periodics_reify (EV_P) 2811periodics_reify (EV_P)
2043{ 2812{
2044 EV_FREQUENT_CHECK; 2813 EV_FREQUENT_CHECK;
2045 2814
2046 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2815 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2047 { 2816 {
2048 int feed_count = 0;
2049
2050 do 2817 do
2051 { 2818 {
2052 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2819 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2053 2820
2054 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2821 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2063 ANHE_at_cache (periodics [HEAP0]); 2830 ANHE_at_cache (periodics [HEAP0]);
2064 downheap (periodics, periodiccnt, HEAP0); 2831 downheap (periodics, periodiccnt, HEAP0);
2065 } 2832 }
2066 else if (w->interval) 2833 else if (w->interval)
2067 { 2834 {
2068 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2835 periodic_recalc (EV_A_ w);
2069 /* if next trigger time is not sufficiently in the future, put it there */
2070 /* this might happen because of floating point inexactness */
2071 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2072 {
2073 ev_at (w) += w->interval;
2074
2075 /* if interval is unreasonably low we might still have a time in the past */
2076 /* so correct this. this will make the periodic very inexact, but the user */
2077 /* has effectively asked to get triggered more often than possible */
2078 if (ev_at (w) < ev_rt_now)
2079 ev_at (w) = ev_rt_now;
2080 }
2081
2082 ANHE_at_cache (periodics [HEAP0]); 2836 ANHE_at_cache (periodics [HEAP0]);
2083 downheap (periodics, periodiccnt, HEAP0); 2837 downheap (periodics, periodiccnt, HEAP0);
2084 } 2838 }
2085 else 2839 else
2086 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2840 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2093 feed_reverse_done (EV_A_ EV_PERIODIC); 2847 feed_reverse_done (EV_A_ EV_PERIODIC);
2094 } 2848 }
2095} 2849}
2096 2850
2097/* simply recalculate all periodics */ 2851/* simply recalculate all periodics */
2098/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2852/* TODO: maybe ensure that at least one event happens when jumping forward? */
2099static void noinline 2853static void noinline ecb_cold
2100periodics_reschedule (EV_P) 2854periodics_reschedule (EV_P)
2101{ 2855{
2102 int i; 2856 int i;
2103 2857
2104 /* adjust periodics after time jump */ 2858 /* adjust periodics after time jump */
… …
2107 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2861 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2108 2862
2109 if (w->reschedule_cb) 2863 if (w->reschedule_cb)
2110 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2864 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2111 else if (w->interval) 2865 else if (w->interval)
2112 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2866 periodic_recalc (EV_A_ w);
2113 2867
2114 ANHE_at_cache (periodics [i]); 2868 ANHE_at_cache (periodics [i]);
2115 } 2869 }
2116 2870
2117 reheap (periodics, periodiccnt); 2871 reheap (periodics, periodiccnt);
2118} 2872}
2119#endif 2873#endif
2120 2874
2121/* adjust all timers by a given offset */ 2875/* adjust all timers by a given offset */
2122static void noinline 2876static void noinline ecb_cold
2123timers_reschedule (EV_P_ ev_tstamp adjust) 2877timers_reschedule (EV_P_ ev_tstamp adjust)
2124{ 2878{
2125 int i; 2879 int i;
2126 2880
2127 for (i = 0; i < timercnt; ++i) 2881 for (i = 0; i < timercnt; ++i)
… …
2131 ANHE_at_cache (*he); 2885 ANHE_at_cache (*he);
2132 } 2886 }
2133} 2887}
2134 2888
2135/* fetch new monotonic and realtime times from the kernel */ 2889/* fetch new monotonic and realtime times from the kernel */
2136/* also detetc if there was a timejump, and act accordingly */ 2890/* also detect if there was a timejump, and act accordingly */
2137inline_speed void 2891inline_speed void
2138time_update (EV_P_ ev_tstamp max_block) 2892time_update (EV_P_ ev_tstamp max_block)
2139{ 2893{
2140#if EV_USE_MONOTONIC 2894#if EV_USE_MONOTONIC
2141 if (expect_true (have_monotonic)) 2895 if (expect_true (have_monotonic))
… …
2164 * doesn't hurt either as we only do this on time-jumps or 2918 * doesn't hurt either as we only do this on time-jumps or
2165 * in the unlikely event of having been preempted here. 2919 * in the unlikely event of having been preempted here.
2166 */ 2920 */
2167 for (i = 4; --i; ) 2921 for (i = 4; --i; )
2168 { 2922 {
2923 ev_tstamp diff;
2169 rtmn_diff = ev_rt_now - mn_now; 2924 rtmn_diff = ev_rt_now - mn_now;
2170 2925
2926 diff = odiff - rtmn_diff;
2927
2171 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2928 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2172 return; /* all is well */ 2929 return; /* all is well */
2173 2930
2174 ev_rt_now = ev_time (); 2931 ev_rt_now = ev_time ();
2175 mn_now = get_clock (); 2932 mn_now = get_clock ();
2176 now_floor = mn_now; 2933 now_floor = mn_now;
… …
2198 2955
2199 mn_now = ev_rt_now; 2956 mn_now = ev_rt_now;
2200 } 2957 }
2201} 2958}
2202 2959
2203void 2960int
2204ev_loop (EV_P_ int flags) 2961ev_run (EV_P_ int flags)
2205{ 2962{
2206#if EV_MINIMAL < 2 2963#if EV_FEATURE_API
2207 ++loop_depth; 2964 ++loop_depth;
2208#endif 2965#endif
2209 2966
2210 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2967 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2211 2968
2212 loop_done = EVUNLOOP_CANCEL; 2969 loop_done = EVBREAK_CANCEL;
2213 2970
2214 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2971 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2215 2972
2216 do 2973 do
2217 { 2974 {
2218#if EV_VERIFY >= 2 2975#if EV_VERIFY >= 2
2219 ev_loop_verify (EV_A); 2976 ev_verify (EV_A);
2220#endif 2977#endif
2221 2978
2222#ifndef _WIN32 2979#ifndef _WIN32
2223 if (expect_false (curpid)) /* penalise the forking check even more */ 2980 if (expect_false (curpid)) /* penalise the forking check even more */
2224 if (expect_false (getpid () != curpid)) 2981 if (expect_false (getpid () != curpid))
… …
2236 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2993 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2237 EV_INVOKE_PENDING; 2994 EV_INVOKE_PENDING;
2238 } 2995 }
2239#endif 2996#endif
2240 2997
2998#if EV_PREPARE_ENABLE
2241 /* queue prepare watchers (and execute them) */ 2999 /* queue prepare watchers (and execute them) */
2242 if (expect_false (preparecnt)) 3000 if (expect_false (preparecnt))
2243 { 3001 {
2244 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3002 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2245 EV_INVOKE_PENDING; 3003 EV_INVOKE_PENDING;
2246 } 3004 }
3005#endif
2247 3006
2248 if (expect_false (loop_done)) 3007 if (expect_false (loop_done))
2249 break; 3008 break;
2250 3009
2251 /* we might have forked, so reify kernel state if necessary */ 3010 /* we might have forked, so reify kernel state if necessary */
… …
2258 /* calculate blocking time */ 3017 /* calculate blocking time */
2259 { 3018 {
2260 ev_tstamp waittime = 0.; 3019 ev_tstamp waittime = 0.;
2261 ev_tstamp sleeptime = 0.; 3020 ev_tstamp sleeptime = 0.;
2262 3021
3022 /* remember old timestamp for io_blocktime calculation */
3023 ev_tstamp prev_mn_now = mn_now;
3024
3025 /* update time to cancel out callback processing overhead */
3026 time_update (EV_A_ 1e100);
3027
3028 /* from now on, we want a pipe-wake-up */
3029 pipe_write_wanted = 1;
3030
3031 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3032
2263 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3033 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2264 { 3034 {
2265 /* remember old timestamp for io_blocktime calculation */
2266 ev_tstamp prev_mn_now = mn_now;
2267
2268 /* update time to cancel out callback processing overhead */
2269 time_update (EV_A_ 1e100);
2270
2271 waittime = MAX_BLOCKTIME; 3035 waittime = MAX_BLOCKTIME;
2272 3036
2273 if (timercnt) 3037 if (timercnt)
2274 { 3038 {
2275 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3039 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2276 if (waittime > to) waittime = to; 3040 if (waittime > to) waittime = to;
2277 } 3041 }
2278 3042
2279#if EV_PERIODIC_ENABLE 3043#if EV_PERIODIC_ENABLE
2280 if (periodiccnt) 3044 if (periodiccnt)
2281 { 3045 {
2282 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3046 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2283 if (waittime > to) waittime = to; 3047 if (waittime > to) waittime = to;
2284 } 3048 }
2285#endif 3049#endif
2286 3050
2287 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3051 /* don't let timeouts decrease the waittime below timeout_blocktime */
2288 if (expect_false (waittime < timeout_blocktime)) 3052 if (expect_false (waittime < timeout_blocktime))
2289 waittime = timeout_blocktime; 3053 waittime = timeout_blocktime;
3054
3055 /* at this point, we NEED to wait, so we have to ensure */
3056 /* to pass a minimum nonzero value to the backend */
3057 if (expect_false (waittime < backend_mintime))
3058 waittime = backend_mintime;
2290 3059
2291 /* extra check because io_blocktime is commonly 0 */ 3060 /* extra check because io_blocktime is commonly 0 */
2292 if (expect_false (io_blocktime)) 3061 if (expect_false (io_blocktime))
2293 { 3062 {
2294 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3063 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2295 3064
2296 if (sleeptime > waittime - backend_fudge) 3065 if (sleeptime > waittime - backend_mintime)
2297 sleeptime = waittime - backend_fudge; 3066 sleeptime = waittime - backend_mintime;
2298 3067
2299 if (expect_true (sleeptime > 0.)) 3068 if (expect_true (sleeptime > 0.))
2300 { 3069 {
2301 ev_sleep (sleeptime); 3070 ev_sleep (sleeptime);
2302 waittime -= sleeptime; 3071 waittime -= sleeptime;
2303 } 3072 }
2304 } 3073 }
2305 } 3074 }
2306 3075
2307#if EV_MINIMAL < 2 3076#if EV_FEATURE_API
2308 ++loop_count; 3077 ++loop_count;
2309#endif 3078#endif
2310 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3079 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2311 backend_poll (EV_A_ waittime); 3080 backend_poll (EV_A_ waittime);
2312 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3081 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3082
3083 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3084
3085 if (pipe_write_skipped)
3086 {
3087 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3088 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3089 }
3090
2313 3091
2314 /* update ev_rt_now, do magic */ 3092 /* update ev_rt_now, do magic */
2315 time_update (EV_A_ waittime + sleeptime); 3093 time_update (EV_A_ waittime + sleeptime);
2316 } 3094 }
2317 3095
… …
2324#if EV_IDLE_ENABLE 3102#if EV_IDLE_ENABLE
2325 /* queue idle watchers unless other events are pending */ 3103 /* queue idle watchers unless other events are pending */
2326 idle_reify (EV_A); 3104 idle_reify (EV_A);
2327#endif 3105#endif
2328 3106
3107#if EV_CHECK_ENABLE
2329 /* queue check watchers, to be executed first */ 3108 /* queue check watchers, to be executed first */
2330 if (expect_false (checkcnt)) 3109 if (expect_false (checkcnt))
2331 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3110 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3111#endif
2332 3112
2333 EV_INVOKE_PENDING; 3113 EV_INVOKE_PENDING;
2334 } 3114 }
2335 while (expect_true ( 3115 while (expect_true (
2336 activecnt 3116 activecnt
2337 && !loop_done 3117 && !loop_done
2338 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3118 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2339 )); 3119 ));
2340 3120
2341 if (loop_done == EVUNLOOP_ONE) 3121 if (loop_done == EVBREAK_ONE)
2342 loop_done = EVUNLOOP_CANCEL; 3122 loop_done = EVBREAK_CANCEL;
2343 3123
2344#if EV_MINIMAL < 2 3124#if EV_FEATURE_API
2345 --loop_depth; 3125 --loop_depth;
2346#endif 3126#endif
3127
3128 return activecnt;
2347} 3129}
2348 3130
2349void 3131void
2350ev_unloop (EV_P_ int how) 3132ev_break (EV_P_ int how) EV_THROW
2351{ 3133{
2352 loop_done = how; 3134 loop_done = how;
2353} 3135}
2354 3136
2355void 3137void
2356ev_ref (EV_P) 3138ev_ref (EV_P) EV_THROW
2357{ 3139{
2358 ++activecnt; 3140 ++activecnt;
2359} 3141}
2360 3142
2361void 3143void
2362ev_unref (EV_P) 3144ev_unref (EV_P) EV_THROW
2363{ 3145{
2364 --activecnt; 3146 --activecnt;
2365} 3147}
2366 3148
2367void 3149void
2368ev_now_update (EV_P) 3150ev_now_update (EV_P) EV_THROW
2369{ 3151{
2370 time_update (EV_A_ 1e100); 3152 time_update (EV_A_ 1e100);
2371} 3153}
2372 3154
2373void 3155void
2374ev_suspend (EV_P) 3156ev_suspend (EV_P) EV_THROW
2375{ 3157{
2376 ev_now_update (EV_A); 3158 ev_now_update (EV_A);
2377} 3159}
2378 3160
2379void 3161void
2380ev_resume (EV_P) 3162ev_resume (EV_P) EV_THROW
2381{ 3163{
2382 ev_tstamp mn_prev = mn_now; 3164 ev_tstamp mn_prev = mn_now;
2383 3165
2384 ev_now_update (EV_A); 3166 ev_now_update (EV_A);
2385 timers_reschedule (EV_A_ mn_now - mn_prev); 3167 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2424 w->pending = 0; 3206 w->pending = 0;
2425 } 3207 }
2426} 3208}
2427 3209
2428int 3210int
2429ev_clear_pending (EV_P_ void *w) 3211ev_clear_pending (EV_P_ void *w) EV_THROW
2430{ 3212{
2431 W w_ = (W)w; 3213 W w_ = (W)w;
2432 int pending = w_->pending; 3214 int pending = w_->pending;
2433 3215
2434 if (expect_true (pending)) 3216 if (expect_true (pending))
… …
2467} 3249}
2468 3250
2469/*****************************************************************************/ 3251/*****************************************************************************/
2470 3252
2471void noinline 3253void noinline
2472ev_io_start (EV_P_ ev_io *w) 3254ev_io_start (EV_P_ ev_io *w) EV_THROW
2473{ 3255{
2474 int fd = w->fd; 3256 int fd = w->fd;
2475 3257
2476 if (expect_false (ev_is_active (w))) 3258 if (expect_false (ev_is_active (w)))
2477 return; 3259 return;
2478 3260
2479 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3261 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2480 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3262 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2481 3263
2482 EV_FREQUENT_CHECK; 3264 EV_FREQUENT_CHECK;
2483 3265
2484 ev_start (EV_A_ (W)w, 1); 3266 ev_start (EV_A_ (W)w, 1);
2485 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3267 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2486 wlist_add (&anfds[fd].head, (WL)w); 3268 wlist_add (&anfds[fd].head, (WL)w);
2487 3269
3270 /* common bug, apparently */
3271 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3272
2488 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3273 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2489 w->events &= ~EV__IOFDSET; 3274 w->events &= ~EV__IOFDSET;
2490 3275
2491 EV_FREQUENT_CHECK; 3276 EV_FREQUENT_CHECK;
2492} 3277}
2493 3278
2494void noinline 3279void noinline
2495ev_io_stop (EV_P_ ev_io *w) 3280ev_io_stop (EV_P_ ev_io *w) EV_THROW
2496{ 3281{
2497 clear_pending (EV_A_ (W)w); 3282 clear_pending (EV_A_ (W)w);
2498 if (expect_false (!ev_is_active (w))) 3283 if (expect_false (!ev_is_active (w)))
2499 return; 3284 return;
2500 3285
… …
2503 EV_FREQUENT_CHECK; 3288 EV_FREQUENT_CHECK;
2504 3289
2505 wlist_del (&anfds[w->fd].head, (WL)w); 3290 wlist_del (&anfds[w->fd].head, (WL)w);
2506 ev_stop (EV_A_ (W)w); 3291 ev_stop (EV_A_ (W)w);
2507 3292
2508 fd_change (EV_A_ w->fd, 1); 3293 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2509 3294
2510 EV_FREQUENT_CHECK; 3295 EV_FREQUENT_CHECK;
2511} 3296}
2512 3297
2513void noinline 3298void noinline
2514ev_timer_start (EV_P_ ev_timer *w) 3299ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2515{ 3300{
2516 if (expect_false (ev_is_active (w))) 3301 if (expect_false (ev_is_active (w)))
2517 return; 3302 return;
2518 3303
2519 ev_at (w) += mn_now; 3304 ev_at (w) += mn_now;
… …
2533 3318
2534 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3319 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2535} 3320}
2536 3321
2537void noinline 3322void noinline
2538ev_timer_stop (EV_P_ ev_timer *w) 3323ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2539{ 3324{
2540 clear_pending (EV_A_ (W)w); 3325 clear_pending (EV_A_ (W)w);
2541 if (expect_false (!ev_is_active (w))) 3326 if (expect_false (!ev_is_active (w)))
2542 return; 3327 return;
2543 3328
… …
2555 timers [active] = timers [timercnt + HEAP0]; 3340 timers [active] = timers [timercnt + HEAP0];
2556 adjustheap (timers, timercnt, active); 3341 adjustheap (timers, timercnt, active);
2557 } 3342 }
2558 } 3343 }
2559 3344
2560 EV_FREQUENT_CHECK;
2561
2562 ev_at (w) -= mn_now; 3345 ev_at (w) -= mn_now;
2563 3346
2564 ev_stop (EV_A_ (W)w); 3347 ev_stop (EV_A_ (W)w);
3348
3349 EV_FREQUENT_CHECK;
2565} 3350}
2566 3351
2567void noinline 3352void noinline
2568ev_timer_again (EV_P_ ev_timer *w) 3353ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2569{ 3354{
2570 EV_FREQUENT_CHECK; 3355 EV_FREQUENT_CHECK;
3356
3357 clear_pending (EV_A_ (W)w);
2571 3358
2572 if (ev_is_active (w)) 3359 if (ev_is_active (w))
2573 { 3360 {
2574 if (w->repeat) 3361 if (w->repeat)
2575 { 3362 {
… …
2588 3375
2589 EV_FREQUENT_CHECK; 3376 EV_FREQUENT_CHECK;
2590} 3377}
2591 3378
2592ev_tstamp 3379ev_tstamp
2593ev_timer_remaining (EV_P_ ev_timer *w) 3380ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2594{ 3381{
2595 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3382 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2596} 3383}
2597 3384
2598#if EV_PERIODIC_ENABLE 3385#if EV_PERIODIC_ENABLE
2599void noinline 3386void noinline
2600ev_periodic_start (EV_P_ ev_periodic *w) 3387ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2601{ 3388{
2602 if (expect_false (ev_is_active (w))) 3389 if (expect_false (ev_is_active (w)))
2603 return; 3390 return;
2604 3391
2605 if (w->reschedule_cb) 3392 if (w->reschedule_cb)
2606 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3393 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2607 else if (w->interval) 3394 else if (w->interval)
2608 { 3395 {
2609 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3396 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2610 /* this formula differs from the one in periodic_reify because we do not always round up */ 3397 periodic_recalc (EV_A_ w);
2611 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2612 } 3398 }
2613 else 3399 else
2614 ev_at (w) = w->offset; 3400 ev_at (w) = w->offset;
2615 3401
2616 EV_FREQUENT_CHECK; 3402 EV_FREQUENT_CHECK;
… …
2626 3412
2627 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3413 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2628} 3414}
2629 3415
2630void noinline 3416void noinline
2631ev_periodic_stop (EV_P_ ev_periodic *w) 3417ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2632{ 3418{
2633 clear_pending (EV_A_ (W)w); 3419 clear_pending (EV_A_ (W)w);
2634 if (expect_false (!ev_is_active (w))) 3420 if (expect_false (!ev_is_active (w)))
2635 return; 3421 return;
2636 3422
… …
2648 periodics [active] = periodics [periodiccnt + HEAP0]; 3434 periodics [active] = periodics [periodiccnt + HEAP0];
2649 adjustheap (periodics, periodiccnt, active); 3435 adjustheap (periodics, periodiccnt, active);
2650 } 3436 }
2651 } 3437 }
2652 3438
2653 EV_FREQUENT_CHECK;
2654
2655 ev_stop (EV_A_ (W)w); 3439 ev_stop (EV_A_ (W)w);
3440
3441 EV_FREQUENT_CHECK;
2656} 3442}
2657 3443
2658void noinline 3444void noinline
2659ev_periodic_again (EV_P_ ev_periodic *w) 3445ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2660{ 3446{
2661 /* TODO: use adjustheap and recalculation */ 3447 /* TODO: use adjustheap and recalculation */
2662 ev_periodic_stop (EV_A_ w); 3448 ev_periodic_stop (EV_A_ w);
2663 ev_periodic_start (EV_A_ w); 3449 ev_periodic_start (EV_A_ w);
2664} 3450}
… …
2666 3452
2667#ifndef SA_RESTART 3453#ifndef SA_RESTART
2668# define SA_RESTART 0 3454# define SA_RESTART 0
2669#endif 3455#endif
2670 3456
3457#if EV_SIGNAL_ENABLE
3458
2671void noinline 3459void noinline
2672ev_signal_start (EV_P_ ev_signal *w) 3460ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2673{ 3461{
2674 if (expect_false (ev_is_active (w))) 3462 if (expect_false (ev_is_active (w)))
2675 return; 3463 return;
2676 3464
2677 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3465 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2721 if (!((WL)w)->next) 3509 if (!((WL)w)->next)
2722# if EV_USE_SIGNALFD 3510# if EV_USE_SIGNALFD
2723 if (sigfd < 0) /*TODO*/ 3511 if (sigfd < 0) /*TODO*/
2724# endif 3512# endif
2725 { 3513 {
2726# if _WIN32 3514# ifdef _WIN32
3515 evpipe_init (EV_A);
3516
2727 signal (w->signum, ev_sighandler); 3517 signal (w->signum, ev_sighandler);
2728# else 3518# else
2729 struct sigaction sa; 3519 struct sigaction sa;
2730 3520
2731 evpipe_init (EV_A); 3521 evpipe_init (EV_A);
… …
2733 sa.sa_handler = ev_sighandler; 3523 sa.sa_handler = ev_sighandler;
2734 sigfillset (&sa.sa_mask); 3524 sigfillset (&sa.sa_mask);
2735 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3525 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2736 sigaction (w->signum, &sa, 0); 3526 sigaction (w->signum, &sa, 0);
2737 3527
3528 if (origflags & EVFLAG_NOSIGMASK)
3529 {
2738 sigemptyset (&sa.sa_mask); 3530 sigemptyset (&sa.sa_mask);
2739 sigaddset (&sa.sa_mask, w->signum); 3531 sigaddset (&sa.sa_mask, w->signum);
2740 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3532 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3533 }
2741#endif 3534#endif
2742 } 3535 }
2743 3536
2744 EV_FREQUENT_CHECK; 3537 EV_FREQUENT_CHECK;
2745} 3538}
2746 3539
2747void noinline 3540void noinline
2748ev_signal_stop (EV_P_ ev_signal *w) 3541ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2749{ 3542{
2750 clear_pending (EV_A_ (W)w); 3543 clear_pending (EV_A_ (W)w);
2751 if (expect_false (!ev_is_active (w))) 3544 if (expect_false (!ev_is_active (w)))
2752 return; 3545 return;
2753 3546
… …
2762 signals [w->signum - 1].loop = 0; /* unattach from signal */ 3555 signals [w->signum - 1].loop = 0; /* unattach from signal */
2763#endif 3556#endif
2764#if EV_USE_SIGNALFD 3557#if EV_USE_SIGNALFD
2765 if (sigfd >= 0) 3558 if (sigfd >= 0)
2766 { 3559 {
2767 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3560 sigset_t ss;
3561
3562 sigemptyset (&ss);
3563 sigaddset (&ss, w->signum);
2768 sigdelset (&sigfd_set, w->signum); 3564 sigdelset (&sigfd_set, w->signum);
3565
2769 signalfd (sigfd, &sigfd_set, 0); 3566 signalfd (sigfd, &sigfd_set, 0);
2770 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3567 sigprocmask (SIG_UNBLOCK, &ss, 0);
2771 /*TODO: maybe unblock signal? */
2772 } 3568 }
2773 else 3569 else
2774#endif 3570#endif
2775 signal (w->signum, SIG_DFL); 3571 signal (w->signum, SIG_DFL);
2776 } 3572 }
2777 3573
2778 EV_FREQUENT_CHECK; 3574 EV_FREQUENT_CHECK;
2779} 3575}
2780 3576
3577#endif
3578
3579#if EV_CHILD_ENABLE
3580
2781void 3581void
2782ev_child_start (EV_P_ ev_child *w) 3582ev_child_start (EV_P_ ev_child *w) EV_THROW
2783{ 3583{
2784#if EV_MULTIPLICITY 3584#if EV_MULTIPLICITY
2785 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3585 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2786#endif 3586#endif
2787 if (expect_false (ev_is_active (w))) 3587 if (expect_false (ev_is_active (w)))
2788 return; 3588 return;
2789 3589
2790 EV_FREQUENT_CHECK; 3590 EV_FREQUENT_CHECK;
2791 3591
2792 ev_start (EV_A_ (W)w, 1); 3592 ev_start (EV_A_ (W)w, 1);
2793 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3593 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2794 3594
2795 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
2796} 3596}
2797 3597
2798void 3598void
2799ev_child_stop (EV_P_ ev_child *w) 3599ev_child_stop (EV_P_ ev_child *w) EV_THROW
2800{ 3600{
2801 clear_pending (EV_A_ (W)w); 3601 clear_pending (EV_A_ (W)w);
2802 if (expect_false (!ev_is_active (w))) 3602 if (expect_false (!ev_is_active (w)))
2803 return; 3603 return;
2804 3604
2805 EV_FREQUENT_CHECK; 3605 EV_FREQUENT_CHECK;
2806 3606
2807 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3607 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2808 ev_stop (EV_A_ (W)w); 3608 ev_stop (EV_A_ (W)w);
2809 3609
2810 EV_FREQUENT_CHECK; 3610 EV_FREQUENT_CHECK;
2811} 3611}
3612
3613#endif
2812 3614
2813#if EV_STAT_ENABLE 3615#if EV_STAT_ENABLE
2814 3616
2815# ifdef _WIN32 3617# ifdef _WIN32
2816# undef lstat 3618# undef lstat
… …
2822#define MIN_STAT_INTERVAL 0.1074891 3624#define MIN_STAT_INTERVAL 0.1074891
2823 3625
2824static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3626static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2825 3627
2826#if EV_USE_INOTIFY 3628#if EV_USE_INOTIFY
2827# define EV_INOTIFY_BUFSIZE 8192 3629
3630/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3631# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2828 3632
2829static void noinline 3633static void noinline
2830infy_add (EV_P_ ev_stat *w) 3634infy_add (EV_P_ ev_stat *w)
2831{ 3635{
2832 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); 3636 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);
2833 3637
2834 if (w->wd < 0) 3638 if (w->wd >= 0)
3639 {
3640 struct statfs sfs;
3641
3642 /* now local changes will be tracked by inotify, but remote changes won't */
3643 /* unless the filesystem is known to be local, we therefore still poll */
3644 /* also do poll on <2.6.25, but with normal frequency */
3645
3646 if (!fs_2625)
3647 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3648 else if (!statfs (w->path, &sfs)
3649 && (sfs.f_type == 0x1373 /* devfs */
3650 || sfs.f_type == 0xEF53 /* ext2/3 */
3651 || sfs.f_type == 0x3153464a /* jfs */
3652 || sfs.f_type == 0x52654973 /* reiser3 */
3653 || sfs.f_type == 0x01021994 /* tempfs */
3654 || sfs.f_type == 0x58465342 /* xfs */))
3655 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3656 else
3657 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2835 { 3658 }
3659 else
3660 {
3661 /* can't use inotify, continue to stat */
2836 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3662 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2837 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2838 3663
2839 /* monitor some parent directory for speedup hints */ 3664 /* if path is not there, monitor some parent directory for speedup hints */
2840 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3665 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2841 /* but an efficiency issue only */ 3666 /* but an efficiency issue only */
2842 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3667 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2843 { 3668 {
2844 char path [4096]; 3669 char path [4096];
… …
2854 if (!pend || pend == path) 3679 if (!pend || pend == path)
2855 break; 3680 break;
2856 3681
2857 *pend = 0; 3682 *pend = 0;
2858 w->wd = inotify_add_watch (fs_fd, path, mask); 3683 w->wd = inotify_add_watch (fs_fd, path, mask);
2859 } 3684 }
2860 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3685 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2861 } 3686 }
2862 } 3687 }
2863 3688
2864 if (w->wd >= 0) 3689 if (w->wd >= 0)
2865 {
2866 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3690 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2867 3691
2868 /* now local changes will be tracked by inotify, but remote changes won't */ 3692 /* now re-arm timer, if required */
2869 /* unless the filesystem it known to be local, we therefore still poll */ 3693 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2870 /* also do poll on <2.6.25, but with normal frequency */
2871 struct statfs sfs;
2872
2873 if (fs_2625 && !statfs (w->path, &sfs))
2874 if (sfs.f_type == 0x1373 /* devfs */
2875 || sfs.f_type == 0xEF53 /* ext2/3 */
2876 || sfs.f_type == 0x3153464a /* jfs */
2877 || sfs.f_type == 0x52654973 /* reiser3 */
2878 || sfs.f_type == 0x01021994 /* tempfs */
2879 || sfs.f_type == 0x58465342 /* xfs */)
2880 return;
2881
2882 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2883 ev_timer_again (EV_A_ &w->timer); 3694 ev_timer_again (EV_A_ &w->timer);
2884 } 3695 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2885} 3696}
2886 3697
2887static void noinline 3698static void noinline
2888infy_del (EV_P_ ev_stat *w) 3699infy_del (EV_P_ ev_stat *w)
2889{ 3700{
… …
2892 3703
2893 if (wd < 0) 3704 if (wd < 0)
2894 return; 3705 return;
2895 3706
2896 w->wd = -2; 3707 w->wd = -2;
2897 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3708 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2898 wlist_del (&fs_hash [slot].head, (WL)w); 3709 wlist_del (&fs_hash [slot].head, (WL)w);
2899 3710
2900 /* remove this watcher, if others are watching it, they will rearm */ 3711 /* remove this watcher, if others are watching it, they will rearm */
2901 inotify_rm_watch (fs_fd, wd); 3712 inotify_rm_watch (fs_fd, wd);
2902} 3713}
… …
2904static void noinline 3715static void noinline
2905infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3716infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2906{ 3717{
2907 if (slot < 0) 3718 if (slot < 0)
2908 /* overflow, need to check for all hash slots */ 3719 /* overflow, need to check for all hash slots */
2909 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3720 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2910 infy_wd (EV_A_ slot, wd, ev); 3721 infy_wd (EV_A_ slot, wd, ev);
2911 else 3722 else
2912 { 3723 {
2913 WL w_; 3724 WL w_;
2914 3725
2915 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3726 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2916 { 3727 {
2917 ev_stat *w = (ev_stat *)w_; 3728 ev_stat *w = (ev_stat *)w_;
2918 w_ = w_->next; /* lets us remove this watcher and all before it */ 3729 w_ = w_->next; /* lets us remove this watcher and all before it */
2919 3730
2920 if (w->wd == wd || wd == -1) 3731 if (w->wd == wd || wd == -1)
2921 { 3732 {
2922 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3733 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2923 { 3734 {
2924 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3735 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2925 w->wd = -1; 3736 w->wd = -1;
2926 infy_add (EV_A_ w); /* re-add, no matter what */ 3737 infy_add (EV_A_ w); /* re-add, no matter what */
2927 } 3738 }
2928 3739
2929 stat_timer_cb (EV_A_ &w->timer, 0); 3740 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2934 3745
2935static void 3746static void
2936infy_cb (EV_P_ ev_io *w, int revents) 3747infy_cb (EV_P_ ev_io *w, int revents)
2937{ 3748{
2938 char buf [EV_INOTIFY_BUFSIZE]; 3749 char buf [EV_INOTIFY_BUFSIZE];
2939 struct inotify_event *ev = (struct inotify_event *)buf;
2940 int ofs; 3750 int ofs;
2941 int len = read (fs_fd, buf, sizeof (buf)); 3751 int len = read (fs_fd, buf, sizeof (buf));
2942 3752
2943 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3753 for (ofs = 0; ofs < len; )
3754 {
3755 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2944 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3756 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3757 ofs += sizeof (struct inotify_event) + ev->len;
3758 }
2945} 3759}
2946 3760
2947inline_size void 3761inline_size void ecb_cold
2948check_2625 (EV_P) 3762ev_check_2625 (EV_P)
2949{ 3763{
2950 /* kernels < 2.6.25 are borked 3764 /* kernels < 2.6.25 are borked
2951 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3765 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2952 */ 3766 */
2953 struct utsname buf; 3767 if (ev_linux_version () < 0x020619)
2954 int major, minor, micro;
2955
2956 if (uname (&buf))
2957 return; 3768 return;
2958 3769
2959 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2960 return;
2961
2962 if (major < 2
2963 || (major == 2 && minor < 6)
2964 || (major == 2 && minor == 6 && micro < 25))
2965 return;
2966
2967 fs_2625 = 1; 3770 fs_2625 = 1;
3771}
3772
3773inline_size int
3774infy_newfd (void)
3775{
3776#if defined IN_CLOEXEC && defined IN_NONBLOCK
3777 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3778 if (fd >= 0)
3779 return fd;
3780#endif
3781 return inotify_init ();
2968} 3782}
2969 3783
2970inline_size void 3784inline_size void
2971infy_init (EV_P) 3785infy_init (EV_P)
2972{ 3786{
2973 if (fs_fd != -2) 3787 if (fs_fd != -2)
2974 return; 3788 return;
2975 3789
2976 fs_fd = -1; 3790 fs_fd = -1;
2977 3791
2978 check_2625 (EV_A); 3792 ev_check_2625 (EV_A);
2979 3793
2980 fs_fd = inotify_init (); 3794 fs_fd = infy_newfd ();
2981 3795
2982 if (fs_fd >= 0) 3796 if (fs_fd >= 0)
2983 { 3797 {
3798 fd_intern (fs_fd);
2984 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3799 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2985 ev_set_priority (&fs_w, EV_MAXPRI); 3800 ev_set_priority (&fs_w, EV_MAXPRI);
2986 ev_io_start (EV_A_ &fs_w); 3801 ev_io_start (EV_A_ &fs_w);
3802 ev_unref (EV_A);
2987 } 3803 }
2988} 3804}
2989 3805
2990inline_size void 3806inline_size void
2991infy_fork (EV_P) 3807infy_fork (EV_P)
… …
2993 int slot; 3809 int slot;
2994 3810
2995 if (fs_fd < 0) 3811 if (fs_fd < 0)
2996 return; 3812 return;
2997 3813
3814 ev_ref (EV_A);
3815 ev_io_stop (EV_A_ &fs_w);
2998 close (fs_fd); 3816 close (fs_fd);
2999 fs_fd = inotify_init (); 3817 fs_fd = infy_newfd ();
3000 3818
3819 if (fs_fd >= 0)
3820 {
3821 fd_intern (fs_fd);
3822 ev_io_set (&fs_w, fs_fd, EV_READ);
3823 ev_io_start (EV_A_ &fs_w);
3824 ev_unref (EV_A);
3825 }
3826
3001 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3827 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3002 { 3828 {
3003 WL w_ = fs_hash [slot].head; 3829 WL w_ = fs_hash [slot].head;
3004 fs_hash [slot].head = 0; 3830 fs_hash [slot].head = 0;
3005 3831
3006 while (w_) 3832 while (w_)
… …
3011 w->wd = -1; 3837 w->wd = -1;
3012 3838
3013 if (fs_fd >= 0) 3839 if (fs_fd >= 0)
3014 infy_add (EV_A_ w); /* re-add, no matter what */ 3840 infy_add (EV_A_ w); /* re-add, no matter what */
3015 else 3841 else
3842 {
3843 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3844 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3016 ev_timer_again (EV_A_ &w->timer); 3845 ev_timer_again (EV_A_ &w->timer);
3846 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3847 }
3017 } 3848 }
3018 } 3849 }
3019} 3850}
3020 3851
3021#endif 3852#endif
… …
3025#else 3856#else
3026# define EV_LSTAT(p,b) lstat (p, b) 3857# define EV_LSTAT(p,b) lstat (p, b)
3027#endif 3858#endif
3028 3859
3029void 3860void
3030ev_stat_stat (EV_P_ ev_stat *w) 3861ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3031{ 3862{
3032 if (lstat (w->path, &w->attr) < 0) 3863 if (lstat (w->path, &w->attr) < 0)
3033 w->attr.st_nlink = 0; 3864 w->attr.st_nlink = 0;
3034 else if (!w->attr.st_nlink) 3865 else if (!w->attr.st_nlink)
3035 w->attr.st_nlink = 1; 3866 w->attr.st_nlink = 1;
… …
3038static void noinline 3869static void noinline
3039stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3870stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3040{ 3871{
3041 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3872 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3042 3873
3043 /* we copy this here each the time so that */ 3874 ev_statdata prev = w->attr;
3044 /* prev has the old value when the callback gets invoked */
3045 w->prev = w->attr;
3046 ev_stat_stat (EV_A_ w); 3875 ev_stat_stat (EV_A_ w);
3047 3876
3048 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3877 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3049 if ( 3878 if (
3050 w->prev.st_dev != w->attr.st_dev 3879 prev.st_dev != w->attr.st_dev
3051 || w->prev.st_ino != w->attr.st_ino 3880 || prev.st_ino != w->attr.st_ino
3052 || w->prev.st_mode != w->attr.st_mode 3881 || prev.st_mode != w->attr.st_mode
3053 || w->prev.st_nlink != w->attr.st_nlink 3882 || prev.st_nlink != w->attr.st_nlink
3054 || w->prev.st_uid != w->attr.st_uid 3883 || prev.st_uid != w->attr.st_uid
3055 || w->prev.st_gid != w->attr.st_gid 3884 || prev.st_gid != w->attr.st_gid
3056 || w->prev.st_rdev != w->attr.st_rdev 3885 || prev.st_rdev != w->attr.st_rdev
3057 || w->prev.st_size != w->attr.st_size 3886 || prev.st_size != w->attr.st_size
3058 || w->prev.st_atime != w->attr.st_atime 3887 || prev.st_atime != w->attr.st_atime
3059 || w->prev.st_mtime != w->attr.st_mtime 3888 || prev.st_mtime != w->attr.st_mtime
3060 || w->prev.st_ctime != w->attr.st_ctime 3889 || prev.st_ctime != w->attr.st_ctime
3061 ) { 3890 ) {
3891 /* we only update w->prev on actual differences */
3892 /* in case we test more often than invoke the callback, */
3893 /* to ensure that prev is always different to attr */
3894 w->prev = prev;
3895
3062 #if EV_USE_INOTIFY 3896 #if EV_USE_INOTIFY
3063 if (fs_fd >= 0) 3897 if (fs_fd >= 0)
3064 { 3898 {
3065 infy_del (EV_A_ w); 3899 infy_del (EV_A_ w);
3066 infy_add (EV_A_ w); 3900 infy_add (EV_A_ w);
… …
3071 ev_feed_event (EV_A_ w, EV_STAT); 3905 ev_feed_event (EV_A_ w, EV_STAT);
3072 } 3906 }
3073} 3907}
3074 3908
3075void 3909void
3076ev_stat_start (EV_P_ ev_stat *w) 3910ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3077{ 3911{
3078 if (expect_false (ev_is_active (w))) 3912 if (expect_false (ev_is_active (w)))
3079 return; 3913 return;
3080 3914
3081 ev_stat_stat (EV_A_ w); 3915 ev_stat_stat (EV_A_ w);
… …
3091 3925
3092 if (fs_fd >= 0) 3926 if (fs_fd >= 0)
3093 infy_add (EV_A_ w); 3927 infy_add (EV_A_ w);
3094 else 3928 else
3095#endif 3929#endif
3930 {
3096 ev_timer_again (EV_A_ &w->timer); 3931 ev_timer_again (EV_A_ &w->timer);
3932 ev_unref (EV_A);
3933 }
3097 3934
3098 ev_start (EV_A_ (W)w, 1); 3935 ev_start (EV_A_ (W)w, 1);
3099 3936
3100 EV_FREQUENT_CHECK; 3937 EV_FREQUENT_CHECK;
3101} 3938}
3102 3939
3103void 3940void
3104ev_stat_stop (EV_P_ ev_stat *w) 3941ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3105{ 3942{
3106 clear_pending (EV_A_ (W)w); 3943 clear_pending (EV_A_ (W)w);
3107 if (expect_false (!ev_is_active (w))) 3944 if (expect_false (!ev_is_active (w)))
3108 return; 3945 return;
3109 3946
3110 EV_FREQUENT_CHECK; 3947 EV_FREQUENT_CHECK;
3111 3948
3112#if EV_USE_INOTIFY 3949#if EV_USE_INOTIFY
3113 infy_del (EV_A_ w); 3950 infy_del (EV_A_ w);
3114#endif 3951#endif
3952
3953 if (ev_is_active (&w->timer))
3954 {
3955 ev_ref (EV_A);
3115 ev_timer_stop (EV_A_ &w->timer); 3956 ev_timer_stop (EV_A_ &w->timer);
3957 }
3116 3958
3117 ev_stop (EV_A_ (W)w); 3959 ev_stop (EV_A_ (W)w);
3118 3960
3119 EV_FREQUENT_CHECK; 3961 EV_FREQUENT_CHECK;
3120} 3962}
3121#endif 3963#endif
3122 3964
3123#if EV_IDLE_ENABLE 3965#if EV_IDLE_ENABLE
3124void 3966void
3125ev_idle_start (EV_P_ ev_idle *w) 3967ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3126{ 3968{
3127 if (expect_false (ev_is_active (w))) 3969 if (expect_false (ev_is_active (w)))
3128 return; 3970 return;
3129 3971
3130 pri_adjust (EV_A_ (W)w); 3972 pri_adjust (EV_A_ (W)w);
… …
3143 3985
3144 EV_FREQUENT_CHECK; 3986 EV_FREQUENT_CHECK;
3145} 3987}
3146 3988
3147void 3989void
3148ev_idle_stop (EV_P_ ev_idle *w) 3990ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3149{ 3991{
3150 clear_pending (EV_A_ (W)w); 3992 clear_pending (EV_A_ (W)w);
3151 if (expect_false (!ev_is_active (w))) 3993 if (expect_false (!ev_is_active (w)))
3152 return; 3994 return;
3153 3995
… …
3165 4007
3166 EV_FREQUENT_CHECK; 4008 EV_FREQUENT_CHECK;
3167} 4009}
3168#endif 4010#endif
3169 4011
4012#if EV_PREPARE_ENABLE
3170void 4013void
3171ev_prepare_start (EV_P_ ev_prepare *w) 4014ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3172{ 4015{
3173 if (expect_false (ev_is_active (w))) 4016 if (expect_false (ev_is_active (w)))
3174 return; 4017 return;
3175 4018
3176 EV_FREQUENT_CHECK; 4019 EV_FREQUENT_CHECK;
… …
3181 4024
3182 EV_FREQUENT_CHECK; 4025 EV_FREQUENT_CHECK;
3183} 4026}
3184 4027
3185void 4028void
3186ev_prepare_stop (EV_P_ ev_prepare *w) 4029ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3187{ 4030{
3188 clear_pending (EV_A_ (W)w); 4031 clear_pending (EV_A_ (W)w);
3189 if (expect_false (!ev_is_active (w))) 4032 if (expect_false (!ev_is_active (w)))
3190 return; 4033 return;
3191 4034
… …
3200 4043
3201 ev_stop (EV_A_ (W)w); 4044 ev_stop (EV_A_ (W)w);
3202 4045
3203 EV_FREQUENT_CHECK; 4046 EV_FREQUENT_CHECK;
3204} 4047}
4048#endif
3205 4049
4050#if EV_CHECK_ENABLE
3206void 4051void
3207ev_check_start (EV_P_ ev_check *w) 4052ev_check_start (EV_P_ ev_check *w) EV_THROW
3208{ 4053{
3209 if (expect_false (ev_is_active (w))) 4054 if (expect_false (ev_is_active (w)))
3210 return; 4055 return;
3211 4056
3212 EV_FREQUENT_CHECK; 4057 EV_FREQUENT_CHECK;
… …
3217 4062
3218 EV_FREQUENT_CHECK; 4063 EV_FREQUENT_CHECK;
3219} 4064}
3220 4065
3221void 4066void
3222ev_check_stop (EV_P_ ev_check *w) 4067ev_check_stop (EV_P_ ev_check *w) EV_THROW
3223{ 4068{
3224 clear_pending (EV_A_ (W)w); 4069 clear_pending (EV_A_ (W)w);
3225 if (expect_false (!ev_is_active (w))) 4070 if (expect_false (!ev_is_active (w)))
3226 return; 4071 return;
3227 4072
… …
3236 4081
3237 ev_stop (EV_A_ (W)w); 4082 ev_stop (EV_A_ (W)w);
3238 4083
3239 EV_FREQUENT_CHECK; 4084 EV_FREQUENT_CHECK;
3240} 4085}
4086#endif
3241 4087
3242#if EV_EMBED_ENABLE 4088#if EV_EMBED_ENABLE
3243void noinline 4089void noinline
3244ev_embed_sweep (EV_P_ ev_embed *w) 4090ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3245{ 4091{
3246 ev_loop (w->other, EVLOOP_NONBLOCK); 4092 ev_run (w->other, EVRUN_NOWAIT);
3247} 4093}
3248 4094
3249static void 4095static void
3250embed_io_cb (EV_P_ ev_io *io, int revents) 4096embed_io_cb (EV_P_ ev_io *io, int revents)
3251{ 4097{
3252 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4098 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3253 4099
3254 if (ev_cb (w)) 4100 if (ev_cb (w))
3255 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4101 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3256 else 4102 else
3257 ev_loop (w->other, EVLOOP_NONBLOCK); 4103 ev_run (w->other, EVRUN_NOWAIT);
3258} 4104}
3259 4105
3260static void 4106static void
3261embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4107embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3262{ 4108{
… …
3266 EV_P = w->other; 4112 EV_P = w->other;
3267 4113
3268 while (fdchangecnt) 4114 while (fdchangecnt)
3269 { 4115 {
3270 fd_reify (EV_A); 4116 fd_reify (EV_A);
3271 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4117 ev_run (EV_A_ EVRUN_NOWAIT);
3272 } 4118 }
3273 } 4119 }
3274} 4120}
3275 4121
3276static void 4122static void
… …
3282 4128
3283 { 4129 {
3284 EV_P = w->other; 4130 EV_P = w->other;
3285 4131
3286 ev_loop_fork (EV_A); 4132 ev_loop_fork (EV_A);
3287 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4133 ev_run (EV_A_ EVRUN_NOWAIT);
3288 } 4134 }
3289 4135
3290 ev_embed_start (EV_A_ w); 4136 ev_embed_start (EV_A_ w);
3291} 4137}
3292 4138
… …
3297 ev_idle_stop (EV_A_ idle); 4143 ev_idle_stop (EV_A_ idle);
3298} 4144}
3299#endif 4145#endif
3300 4146
3301void 4147void
3302ev_embed_start (EV_P_ ev_embed *w) 4148ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3303{ 4149{
3304 if (expect_false (ev_is_active (w))) 4150 if (expect_false (ev_is_active (w)))
3305 return; 4151 return;
3306 4152
3307 { 4153 {
… …
3328 4174
3329 EV_FREQUENT_CHECK; 4175 EV_FREQUENT_CHECK;
3330} 4176}
3331 4177
3332void 4178void
3333ev_embed_stop (EV_P_ ev_embed *w) 4179ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3334{ 4180{
3335 clear_pending (EV_A_ (W)w); 4181 clear_pending (EV_A_ (W)w);
3336 if (expect_false (!ev_is_active (w))) 4182 if (expect_false (!ev_is_active (w)))
3337 return; 4183 return;
3338 4184
… …
3340 4186
3341 ev_io_stop (EV_A_ &w->io); 4187 ev_io_stop (EV_A_ &w->io);
3342 ev_prepare_stop (EV_A_ &w->prepare); 4188 ev_prepare_stop (EV_A_ &w->prepare);
3343 ev_fork_stop (EV_A_ &w->fork); 4189 ev_fork_stop (EV_A_ &w->fork);
3344 4190
4191 ev_stop (EV_A_ (W)w);
4192
3345 EV_FREQUENT_CHECK; 4193 EV_FREQUENT_CHECK;
3346} 4194}
3347#endif 4195#endif
3348 4196
3349#if EV_FORK_ENABLE 4197#if EV_FORK_ENABLE
3350void 4198void
3351ev_fork_start (EV_P_ ev_fork *w) 4199ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3352{ 4200{
3353 if (expect_false (ev_is_active (w))) 4201 if (expect_false (ev_is_active (w)))
3354 return; 4202 return;
3355 4203
3356 EV_FREQUENT_CHECK; 4204 EV_FREQUENT_CHECK;
… …
3361 4209
3362 EV_FREQUENT_CHECK; 4210 EV_FREQUENT_CHECK;
3363} 4211}
3364 4212
3365void 4213void
3366ev_fork_stop (EV_P_ ev_fork *w) 4214ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3367{ 4215{
3368 clear_pending (EV_A_ (W)w); 4216 clear_pending (EV_A_ (W)w);
3369 if (expect_false (!ev_is_active (w))) 4217 if (expect_false (!ev_is_active (w)))
3370 return; 4218 return;
3371 4219
… …
3382 4230
3383 EV_FREQUENT_CHECK; 4231 EV_FREQUENT_CHECK;
3384} 4232}
3385#endif 4233#endif
3386 4234
4235#if EV_CLEANUP_ENABLE
4236void
4237ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4238{
4239 if (expect_false (ev_is_active (w)))
4240 return;
4241
4242 EV_FREQUENT_CHECK;
4243
4244 ev_start (EV_A_ (W)w, ++cleanupcnt);
4245 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4246 cleanups [cleanupcnt - 1] = w;
4247
4248 /* cleanup watchers should never keep a refcount on the loop */
4249 ev_unref (EV_A);
4250 EV_FREQUENT_CHECK;
4251}
4252
4253void
4254ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4255{
4256 clear_pending (EV_A_ (W)w);
4257 if (expect_false (!ev_is_active (w)))
4258 return;
4259
4260 EV_FREQUENT_CHECK;
4261 ev_ref (EV_A);
4262
4263 {
4264 int active = ev_active (w);
4265
4266 cleanups [active - 1] = cleanups [--cleanupcnt];
4267 ev_active (cleanups [active - 1]) = active;
4268 }
4269
4270 ev_stop (EV_A_ (W)w);
4271
4272 EV_FREQUENT_CHECK;
4273}
4274#endif
4275
3387#if EV_ASYNC_ENABLE 4276#if EV_ASYNC_ENABLE
3388void 4277void
3389ev_async_start (EV_P_ ev_async *w) 4278ev_async_start (EV_P_ ev_async *w) EV_THROW
3390{ 4279{
3391 if (expect_false (ev_is_active (w))) 4280 if (expect_false (ev_is_active (w)))
3392 return; 4281 return;
4282
4283 w->sent = 0;
3393 4284
3394 evpipe_init (EV_A); 4285 evpipe_init (EV_A);
3395 4286
3396 EV_FREQUENT_CHECK; 4287 EV_FREQUENT_CHECK;
3397 4288
… …
3401 4292
3402 EV_FREQUENT_CHECK; 4293 EV_FREQUENT_CHECK;
3403} 4294}
3404 4295
3405void 4296void
3406ev_async_stop (EV_P_ ev_async *w) 4297ev_async_stop (EV_P_ ev_async *w) EV_THROW
3407{ 4298{
3408 clear_pending (EV_A_ (W)w); 4299 clear_pending (EV_A_ (W)w);
3409 if (expect_false (!ev_is_active (w))) 4300 if (expect_false (!ev_is_active (w)))
3410 return; 4301 return;
3411 4302
… …
3422 4313
3423 EV_FREQUENT_CHECK; 4314 EV_FREQUENT_CHECK;
3424} 4315}
3425 4316
3426void 4317void
3427ev_async_send (EV_P_ ev_async *w) 4318ev_async_send (EV_P_ ev_async *w) EV_THROW
3428{ 4319{
3429 w->sent = 1; 4320 w->sent = 1;
3430 evpipe_write (EV_A_ &async_pending); 4321 evpipe_write (EV_A_ &async_pending);
3431} 4322}
3432#endif 4323#endif
… …
3469 4360
3470 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4361 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3471} 4362}
3472 4363
3473void 4364void
3474ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4365ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3475{ 4366{
3476 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4367 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3477 4368
3478 if (expect_false (!once)) 4369 if (expect_false (!once))
3479 { 4370 {
3480 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4371 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3481 return; 4372 return;
3482 } 4373 }
3483 4374
3484 once->cb = cb; 4375 once->cb = cb;
3485 once->arg = arg; 4376 once->arg = arg;
… …
3500} 4391}
3501 4392
3502/*****************************************************************************/ 4393/*****************************************************************************/
3503 4394
3504#if EV_WALK_ENABLE 4395#if EV_WALK_ENABLE
3505void 4396void ecb_cold
3506ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4397ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3507{ 4398{
3508 int i, j; 4399 int i, j;
3509 ev_watcher_list *wl, *wn; 4400 ev_watcher_list *wl, *wn;
3510 4401
3511 if (types & (EV_IO | EV_EMBED)) 4402 if (types & (EV_IO | EV_EMBED))
… …
3554 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4445 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3555#endif 4446#endif
3556 4447
3557#if EV_IDLE_ENABLE 4448#if EV_IDLE_ENABLE
3558 if (types & EV_IDLE) 4449 if (types & EV_IDLE)
3559 for (j = NUMPRI; i--; ) 4450 for (j = NUMPRI; j--; )
3560 for (i = idlecnt [j]; i--; ) 4451 for (i = idlecnt [j]; i--; )
3561 cb (EV_A_ EV_IDLE, idles [j][i]); 4452 cb (EV_A_ EV_IDLE, idles [j][i]);
3562#endif 4453#endif
3563 4454
3564#if EV_FORK_ENABLE 4455#if EV_FORK_ENABLE
… …
3572 if (types & EV_ASYNC) 4463 if (types & EV_ASYNC)
3573 for (i = asynccnt; i--; ) 4464 for (i = asynccnt; i--; )
3574 cb (EV_A_ EV_ASYNC, asyncs [i]); 4465 cb (EV_A_ EV_ASYNC, asyncs [i]);
3575#endif 4466#endif
3576 4467
4468#if EV_PREPARE_ENABLE
3577 if (types & EV_PREPARE) 4469 if (types & EV_PREPARE)
3578 for (i = preparecnt; i--; ) 4470 for (i = preparecnt; i--; )
3579#if EV_EMBED_ENABLE 4471# if EV_EMBED_ENABLE
3580 if (ev_cb (prepares [i]) != embed_prepare_cb) 4472 if (ev_cb (prepares [i]) != embed_prepare_cb)
3581#endif 4473# endif
3582 cb (EV_A_ EV_PREPARE, prepares [i]); 4474 cb (EV_A_ EV_PREPARE, prepares [i]);
4475#endif
3583 4476
4477#if EV_CHECK_ENABLE
3584 if (types & EV_CHECK) 4478 if (types & EV_CHECK)
3585 for (i = checkcnt; i--; ) 4479 for (i = checkcnt; i--; )
3586 cb (EV_A_ EV_CHECK, checks [i]); 4480 cb (EV_A_ EV_CHECK, checks [i]);
4481#endif
3587 4482
4483#if EV_SIGNAL_ENABLE
3588 if (types & EV_SIGNAL) 4484 if (types & EV_SIGNAL)
3589 for (i = 0; i < EV_NSIG - 1; ++i) 4485 for (i = 0; i < EV_NSIG - 1; ++i)
3590 for (wl = signals [i].head; wl; ) 4486 for (wl = signals [i].head; wl; )
3591 { 4487 {
3592 wn = wl->next; 4488 wn = wl->next;
3593 cb (EV_A_ EV_SIGNAL, wl); 4489 cb (EV_A_ EV_SIGNAL, wl);
3594 wl = wn; 4490 wl = wn;
3595 } 4491 }
4492#endif
3596 4493
4494#if EV_CHILD_ENABLE
3597 if (types & EV_CHILD) 4495 if (types & EV_CHILD)
3598 for (i = EV_PID_HASHSIZE; i--; ) 4496 for (i = (EV_PID_HASHSIZE); i--; )
3599 for (wl = childs [i]; wl; ) 4497 for (wl = childs [i]; wl; )
3600 { 4498 {
3601 wn = wl->next; 4499 wn = wl->next;
3602 cb (EV_A_ EV_CHILD, wl); 4500 cb (EV_A_ EV_CHILD, wl);
3603 wl = wn; 4501 wl = wn;
3604 } 4502 }
4503#endif
3605/* EV_STAT 0x00001000 /* stat data changed */ 4504/* EV_STAT 0x00001000 /* stat data changed */
3606/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4505/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3607} 4506}
3608#endif 4507#endif
3609 4508
3610#if EV_MULTIPLICITY 4509#if EV_MULTIPLICITY
3611 #include "ev_wrap.h" 4510 #include "ev_wrap.h"
3612#endif 4511#endif
3613 4512
3614#ifdef __cplusplus
3615}
3616#endif
3617

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