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Comparing libev/ev.c (file contents):
Revision 1.306 by root, Sun Jul 19 06:35:25 2009 UTC vs.
Revision 1.426 by root, Sun May 6 13:42:10 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
158#include <fcntl.h> 169#include <fcntl.h>
159#include <stddef.h> 170#include <stddef.h>
160 171
161#include <stdio.h> 172#include <stdio.h>
162 173
163#include <assert.h> 174#include <assert.h>
164#include <errno.h> 175#include <errno.h>
165#include <sys/types.h> 176#include <sys/types.h>
166#include <time.h> 177#include <time.h>
178#include <limits.h>
167 179
168#include <signal.h> 180#include <signal.h>
169 181
170#ifdef EV_H 182#ifdef EV_H
171# include EV_H 183# include EV_H
172#else 184#else
173# include "ev.h" 185# include "ev.h"
186#endif
187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
174#endif 197#endif
175 198
176#ifndef _WIN32 199#ifndef _WIN32
177# include <sys/time.h> 200# include <sys/time.h>
178# include <sys/wait.h> 201# include <sys/wait.h>
… …
182# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
183# include <windows.h> 206# include <windows.h>
184# ifndef EV_SELECT_IS_WINSOCKET 207# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 208# define EV_SELECT_IS_WINSOCKET 1
186# endif 209# endif
210# undef EV_AVOID_STDIO
187#endif 211#endif
212
213/* OS X, in its infinite idiocy, actually HARDCODES
214 * a limit of 1024 into their select. Where people have brains,
215 * OS X engineers apparently have a vacuum. Or maybe they were
216 * ordered to have a vacuum, or they do anything for money.
217 * This might help. Or not.
218 */
219#define _DARWIN_UNLIMITED_SELECT 1
188 220
189/* this block tries to deduce configuration from header-defined symbols and defaults */ 221/* this block tries to deduce configuration from header-defined symbols and defaults */
190 222
191/* try to deduce the maximum number of signals on this platform */ 223/* try to deduce the maximum number of signals on this platform */
192/* one some platforms, NSIG is one too large. we do not bother */
193#if defined (EV_NSIG) 224#if defined EV_NSIG
194/* use what's provided */ 225/* use what's provided */
195#elif defined (NSIG) 226#elif defined NSIG
196# define EV_NSIG (NSIG) 227# define EV_NSIG (NSIG)
197#elif defined(_NSIG) 228#elif defined _NSIG
198# define EV_NSIG (_NSIG) 229# define EV_NSIG (_NSIG)
199#elif defined (SIGMAX) 230#elif defined SIGMAX
200# define EV_NSIG (SIGMAX+1) 231# define EV_NSIG (SIGMAX+1)
201#elif defined (SIG_MAX) 232#elif defined SIG_MAX
202# define EV_NSIG (SIG_MAX+1) 233# define EV_NSIG (SIG_MAX+1)
203#elif defined (_SIG_MAX) 234#elif defined _SIG_MAX
204# define EV_NSIG (_SIG_MAX+1) 235# define EV_NSIG (_SIG_MAX+1)
205#elif defined (MAXSIG) 236#elif defined MAXSIG
206# define EV_NSIG (MAXSIG+1) 237# define EV_NSIG (MAXSIG+1)
207#elif defined (MAX_SIG) 238#elif defined MAX_SIG
208# define EV_NSIG (MAX_SIG+1) 239# define EV_NSIG (MAX_SIG+1)
209#elif defined (SIGARRAYSIZE) 240#elif defined SIGARRAYSIZE
210# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
211#elif defined (_sys_nsig) 242#elif defined _sys_nsig
212# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
213#else 244#else
214# error "unable to find value for NSIG, please report" 245# error "unable to find value for NSIG, please report"
215/* to make it compile regardless, just remove the above line */ 246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
216# define EV_NSIG 65 248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
217#endif 253#endif
218 254
219#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
220# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
221# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
222# else 258# else
223# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
224# endif 260# endif
225#endif 261#endif
226 262
227#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
228# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
229# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
230# else 266# else
231# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
232# endif 268# endif
233#endif 269#endif
234 270
… …
236# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
237#endif 273#endif
238 274
239#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
240# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
241# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
242# else 278# else
243# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
244# endif 280# endif
245#endif 281#endif
246 282
247#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
248# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
249#endif 285#endif
250 286
251#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
252# ifdef _WIN32 288# ifdef _WIN32
253# define EV_USE_POLL 0 289# define EV_USE_POLL 0
254# else 290# else
255# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
256# endif 292# endif
257#endif 293#endif
258 294
259#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
260# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
261# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
262# else 298# else
263# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
264# endif 300# endif
265#endif 301#endif
266 302
… …
272# define EV_USE_PORT 0 308# define EV_USE_PORT 0
273#endif 309#endif
274 310
275#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
276# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
277# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
278# else 314# else
279# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
280# endif 316# endif
281#endif 317#endif
282 318
283#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
284# if EV_MINIMAL 320# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
285# define EV_PID_HASHSIZE 1
286# else
287# define EV_PID_HASHSIZE 16
288# endif
289#endif 321#endif
290 322
291#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
292# if EV_MINIMAL 324# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
293# define EV_INOTIFY_HASHSIZE 1
294# else
295# define EV_INOTIFY_HASHSIZE 16
296# endif
297#endif 325#endif
298 326
299#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
300# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
301# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
302# else 330# else
303# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
304# endif 332# endif
305#endif 333#endif
306 334
307#ifndef EV_USE_SIGNALFD 335#ifndef EV_USE_SIGNALFD
308# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) 336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
309# define EV_USE_SIGNALFD 1 337# define EV_USE_SIGNALFD EV_FEATURE_OS
310# else 338# else
311# define EV_USE_SIGNALFD 0 339# define EV_USE_SIGNALFD 0
312# endif 340# endif
313#endif 341#endif
314 342
… …
317# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
318# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
319#endif 347#endif
320 348
321#ifndef EV_VERIFY 349#ifndef EV_VERIFY
322# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
323#endif 351#endif
324 352
325#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
326# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
327#endif 355#endif
328 356
329#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
330# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
331#endif 359#endif
332 360
333/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
334/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
335#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
336# include <syscall.h> 364# include <sys/syscall.h>
337# ifdef SYS_clock_gettime 365# ifdef SYS_clock_gettime
338# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
339# undef EV_USE_MONOTONIC 367# undef EV_USE_MONOTONIC
340# define EV_USE_MONOTONIC 1 368# define EV_USE_MONOTONIC 1
341# else 369# else
… …
344# endif 372# endif
345#endif 373#endif
346 374
347/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 375/* this block fixes any misconfiguration where we know we run into trouble otherwise */
348 376
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
349#ifndef CLOCK_MONOTONIC 383#ifndef CLOCK_MONOTONIC
350# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
351# define EV_USE_MONOTONIC 0 385# define EV_USE_MONOTONIC 0
352#endif 386#endif
353 387
… …
360# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
361# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
362#endif 396#endif
363 397
364#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
365# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
366# include <sys/select.h> 401# include <sys/select.h>
367# endif 402# endif
368#endif 403#endif
369 404
370#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
371# include <sys/utsname.h>
372# include <sys/statfs.h> 406# include <sys/statfs.h>
373# include <sys/inotify.h> 407# include <sys/inotify.h>
374/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
375# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
376# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
387# include <stdint.h> 421# include <stdint.h>
388# ifndef EFD_NONBLOCK 422# ifndef EFD_NONBLOCK
389# define EFD_NONBLOCK O_NONBLOCK 423# define EFD_NONBLOCK O_NONBLOCK
390# endif 424# endif
391# ifndef EFD_CLOEXEC 425# ifndef EFD_CLOEXEC
426# ifdef O_CLOEXEC
392# define EFD_CLOEXEC O_CLOEXEC 427# define EFD_CLOEXEC O_CLOEXEC
428# else
429# define EFD_CLOEXEC 02000000
430# endif
393# endif 431# endif
394# ifdef __cplusplus 432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
395extern "C" { 433#endif
434
435#if EV_USE_SIGNALFD
436/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
437# include <stdint.h>
438# ifndef SFD_NONBLOCK
439# define SFD_NONBLOCK O_NONBLOCK
396# endif 440# endif
397int eventfd (unsigned int initval, int flags); 441# ifndef SFD_CLOEXEC
398# ifdef __cplusplus 442# ifdef O_CLOEXEC
399} 443# define SFD_CLOEXEC O_CLOEXEC
444# else
445# define SFD_CLOEXEC 02000000
446# endif
400# endif 447# endif
401#endif 448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
402 449
403#if EV_USE_SIGNALFD 450struct signalfd_siginfo
404# include <sys/signalfd.h> 451{
452 uint32_t ssi_signo;
453 char pad[128 - sizeof (uint32_t)];
454};
405#endif 455#endif
406 456
407/**/ 457/**/
408 458
409#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
410# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
411#else 461#else
412# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
413#endif 463#endif
414 464
415/* 465/*
416 * This is used to avoid floating point rounding problems. 466 * This is used to work around floating point rounding problems.
417 * It is added to ev_rt_now when scheduling periodics
418 * to ensure progress, time-wise, even when rounding
419 * errors are against us.
420 * This value is good at least till the year 4000. 467 * This value is good at least till the year 4000.
421 * Better solutions welcome.
422 */ 468 */
423#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
470/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
424 471
425#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 472#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
426#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 473#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
427/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
428 474
475#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
476#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
477
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */
480/*
481 * libecb - http://software.schmorp.de/pkg/libecb
482 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved.
486 *
487 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met:
489 *
490 * 1. Redistributions of source code must retain the above copyright notice,
491 * this list of conditions and the following disclaimer.
492 *
493 * 2. Redistributions in binary form must reproduce the above copyright
494 * notice, this list of conditions and the following disclaimer in the
495 * documentation and/or other materials provided with the distribution.
496 *
497 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
498 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
499 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
500 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
501 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE.
507 */
508
509#ifndef ECB_H
510#define ECB_H
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
429#if __GNUC__ >= 4 519 #if __GNUC__
430# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
431# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
432#else 526#else
433# define expect(expr,value) (expr) 527 #include <inttypes.h>
434# define noinline
435# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
436# define inline
437# endif 528#endif
529
530/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place.
536 */
537#ifndef ECB_GCC_VERSION
538 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0
540 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
438#endif 542 #endif
543#endif
439 544
545/*****************************************************************************/
546
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549
550#if ECB_NO_THREADS
551# define ECB_NO_SMP 1
552#endif
553
554#if ECB_NO_THREADS || ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0)
556#endif
557
558#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined __mips__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
584 #elif defined __alpha__
585 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
586 #endif
587 #endif
588#endif
589
590#ifndef ECB_MEMORY_FENCE
591 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
592 #define ECB_MEMORY_FENCE __sync_synchronize ()
593 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
594 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
595 #elif _MSC_VER >= 1400 /* VC++ 2005 */
596 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
597 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
598 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
599 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
600 #elif defined _WIN32
601 #include <WinNT.h>
602 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
603 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
604 #include <mbarrier.h>
605 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
606 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
607 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
608 #elif __xlC__
609 #define ECB_MEMORY_FENCE __sync ()
610 #endif
611#endif
612
613#ifndef ECB_MEMORY_FENCE
614 #if !ECB_AVOID_PTHREADS
615 /*
616 * if you get undefined symbol references to pthread_mutex_lock,
617 * or failure to find pthread.h, then you should implement
618 * the ECB_MEMORY_FENCE operations for your cpu/compiler
619 * OR provide pthread.h and link against the posix thread library
620 * of your system.
621 */
622 #include <pthread.h>
623 #define ECB_NEEDS_PTHREADS 1
624 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
625
626 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
627 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
628 #endif
629#endif
630
631#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
633#endif
634
635#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
636 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
637#endif
638
639/*****************************************************************************/
640
641#define ECB_C99 (__STDC_VERSION__ >= 199901L)
642
643#if __cplusplus
644 #define ecb_inline static inline
645#elif ECB_GCC_VERSION(2,5)
646 #define ecb_inline static __inline__
647#elif ECB_C99
648 #define ecb_inline static inline
649#else
650 #define ecb_inline static
651#endif
652
653#if ECB_GCC_VERSION(3,3)
654 #define ecb_restrict __restrict__
655#elif ECB_C99
656 #define ecb_restrict restrict
657#else
658 #define ecb_restrict
659#endif
660
661typedef int ecb_bool;
662
663#define ECB_CONCAT_(a, b) a ## b
664#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
665#define ECB_STRINGIFY_(a) # a
666#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
667
668#define ecb_function_ ecb_inline
669
670#if ECB_GCC_VERSION(3,1)
671 #define ecb_attribute(attrlist) __attribute__(attrlist)
672 #define ecb_is_constant(expr) __builtin_constant_p (expr)
673 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
674 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
675#else
676 #define ecb_attribute(attrlist)
677 #define ecb_is_constant(expr) 0
678 #define ecb_expect(expr,value) (expr)
679 #define ecb_prefetch(addr,rw,locality)
680#endif
681
682/* no emulation for ecb_decltype */
683#if ECB_GCC_VERSION(4,5)
684 #define ecb_decltype(x) __decltype(x)
685#elif ECB_GCC_VERSION(3,0)
686 #define ecb_decltype(x) __typeof(x)
687#endif
688
689#define ecb_noinline ecb_attribute ((__noinline__))
690#define ecb_noreturn ecb_attribute ((__noreturn__))
691#define ecb_unused ecb_attribute ((__unused__))
692#define ecb_const ecb_attribute ((__const__))
693#define ecb_pure ecb_attribute ((__pure__))
694
695#if ECB_GCC_VERSION(4,3)
696 #define ecb_artificial ecb_attribute ((__artificial__))
697 #define ecb_hot ecb_attribute ((__hot__))
698 #define ecb_cold ecb_attribute ((__cold__))
699#else
700 #define ecb_artificial
701 #define ecb_hot
702 #define ecb_cold
703#endif
704
705/* put around conditional expressions if you are very sure that the */
706/* expression is mostly true or mostly false. note that these return */
707/* booleans, not the expression. */
440#define expect_false(expr) expect ((expr) != 0, 0) 708#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
441#define expect_true(expr) expect ((expr) != 0, 1) 709#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
710/* for compatibility to the rest of the world */
711#define ecb_likely(expr) ecb_expect_true (expr)
712#define ecb_unlikely(expr) ecb_expect_false (expr)
713
714/* count trailing zero bits and count # of one bits */
715#if ECB_GCC_VERSION(3,4)
716 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
717 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
718 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
719 #define ecb_ctz32(x) __builtin_ctz (x)
720 #define ecb_ctz64(x) __builtin_ctzll (x)
721 #define ecb_popcount32(x) __builtin_popcount (x)
722 /* no popcountll */
723#else
724 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
725 ecb_function_ int
726 ecb_ctz32 (uint32_t x)
727 {
728 int r = 0;
729
730 x &= ~x + 1; /* this isolates the lowest bit */
731
732#if ECB_branchless_on_i386
733 r += !!(x & 0xaaaaaaaa) << 0;
734 r += !!(x & 0xcccccccc) << 1;
735 r += !!(x & 0xf0f0f0f0) << 2;
736 r += !!(x & 0xff00ff00) << 3;
737 r += !!(x & 0xffff0000) << 4;
738#else
739 if (x & 0xaaaaaaaa) r += 1;
740 if (x & 0xcccccccc) r += 2;
741 if (x & 0xf0f0f0f0) r += 4;
742 if (x & 0xff00ff00) r += 8;
743 if (x & 0xffff0000) r += 16;
744#endif
745
746 return r;
747 }
748
749 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
750 ecb_function_ int
751 ecb_ctz64 (uint64_t x)
752 {
753 int shift = x & 0xffffffffU ? 0 : 32;
754 return ecb_ctz32 (x >> shift) + shift;
755 }
756
757 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
758 ecb_function_ int
759 ecb_popcount32 (uint32_t x)
760 {
761 x -= (x >> 1) & 0x55555555;
762 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
763 x = ((x >> 4) + x) & 0x0f0f0f0f;
764 x *= 0x01010101;
765
766 return x >> 24;
767 }
768
769 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
770 ecb_function_ int ecb_ld32 (uint32_t x)
771 {
772 int r = 0;
773
774 if (x >> 16) { x >>= 16; r += 16; }
775 if (x >> 8) { x >>= 8; r += 8; }
776 if (x >> 4) { x >>= 4; r += 4; }
777 if (x >> 2) { x >>= 2; r += 2; }
778 if (x >> 1) { r += 1; }
779
780 return r;
781 }
782
783 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
784 ecb_function_ int ecb_ld64 (uint64_t x)
785 {
786 int r = 0;
787
788 if (x >> 32) { x >>= 32; r += 32; }
789
790 return r + ecb_ld32 (x);
791 }
792#endif
793
794ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796{
797 return ( (x * 0x0802U & 0x22110U)
798 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
799}
800
801ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
803{
804 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
805 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
806 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
807 x = ( x >> 8 ) | ( x << 8);
808
809 return x;
810}
811
812ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
814{
815 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
816 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
817 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
818 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
819 x = ( x >> 16 ) | ( x << 16);
820
821 return x;
822}
823
824/* popcount64 is only available on 64 bit cpus as gcc builtin */
825/* so for this version we are lazy */
826ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
827ecb_function_ int
828ecb_popcount64 (uint64_t x)
829{
830 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
831}
832
833ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
834ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
841
842ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
843ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
844ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
845ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
846ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
847ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
848ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
849ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
850
851#if ECB_GCC_VERSION(4,3)
852 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
853 #define ecb_bswap32(x) __builtin_bswap32 (x)
854 #define ecb_bswap64(x) __builtin_bswap64 (x)
855#else
856 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
857 ecb_function_ uint16_t
858 ecb_bswap16 (uint16_t x)
859 {
860 return ecb_rotl16 (x, 8);
861 }
862
863 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
864 ecb_function_ uint32_t
865 ecb_bswap32 (uint32_t x)
866 {
867 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
868 }
869
870 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
871 ecb_function_ uint64_t
872 ecb_bswap64 (uint64_t x)
873 {
874 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
875 }
876#endif
877
878#if ECB_GCC_VERSION(4,5)
879 #define ecb_unreachable() __builtin_unreachable ()
880#else
881 /* this seems to work fine, but gcc always emits a warning for it :/ */
882 ecb_inline void ecb_unreachable (void) ecb_noreturn;
883 ecb_inline void ecb_unreachable (void) { }
884#endif
885
886/* try to tell the compiler that some condition is definitely true */
887#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
888
889ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
890ecb_inline unsigned char
891ecb_byteorder_helper (void)
892{
893 const uint32_t u = 0x11223344;
894 return *(unsigned char *)&u;
895}
896
897ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
898ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
899ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
900ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
901
902#if ECB_GCC_VERSION(3,0) || ECB_C99
903 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
904#else
905 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
906#endif
907
908#if __cplusplus
909 template<typename T>
910 static inline T ecb_div_rd (T val, T div)
911 {
912 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
913 }
914 template<typename T>
915 static inline T ecb_div_ru (T val, T div)
916 {
917 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
918 }
919#else
920 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
921 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
922#endif
923
924#if ecb_cplusplus_does_not_suck
925 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
926 template<typename T, int N>
927 static inline int ecb_array_length (const T (&arr)[N])
928 {
929 return N;
930 }
931#else
932 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
933#endif
934
935#endif
936
937/* ECB.H END */
938
939#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
940/* if your architecture doesn't need memory fences, e.g. because it is
941 * single-cpu/core, or if you use libev in a project that doesn't use libev
942 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
943 * libev, in which cases the memory fences become nops.
944 * alternatively, you can remove this #error and link against libpthread,
945 * which will then provide the memory fences.
946 */
947# error "memory fences not defined for your architecture, please report"
948#endif
949
950#ifndef ECB_MEMORY_FENCE
951# define ECB_MEMORY_FENCE do { } while (0)
952# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
953# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
954#endif
955
956#define expect_false(cond) ecb_expect_false (cond)
957#define expect_true(cond) ecb_expect_true (cond)
958#define noinline ecb_noinline
959
442#define inline_size static inline 960#define inline_size ecb_inline
443 961
444#if EV_MINIMAL 962#if EV_FEATURE_CODE
963# define inline_speed ecb_inline
964#else
445# define inline_speed static noinline 965# define inline_speed static noinline
446#else
447# define inline_speed static inline
448#endif 966#endif
449 967
450#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
451 969
452#if EV_MINPRI == EV_MAXPRI 970#if EV_MINPRI == EV_MAXPRI
… …
465#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
466#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
467 985
468#if EV_USE_REALTIME 986#if EV_USE_REALTIME
469/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 987/* sig_atomic_t is used to avoid per-thread variables or locking but still */
470/* giving it a reasonably high chance of working on typical architetcures */ 988/* giving it a reasonably high chance of working on typical architectures */
471static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
472#endif 990#endif
473 991
474#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
475static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
476#endif 994#endif
477 995
996#ifndef EV_FD_TO_WIN32_HANDLE
997# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
998#endif
999#ifndef EV_WIN32_HANDLE_TO_FD
1000# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
1001#endif
1002#ifndef EV_WIN32_CLOSE_FD
1003# define EV_WIN32_CLOSE_FD(fd) close (fd)
1004#endif
1005
478#ifdef _WIN32 1006#ifdef _WIN32
479# include "ev_win32.c" 1007# include "ev_win32.c"
480#endif 1008#endif
481 1009
482/*****************************************************************************/ 1010/*****************************************************************************/
483 1011
1012/* define a suitable floor function (only used by periodics atm) */
1013
1014#if EV_USE_FLOOR
1015# include <math.h>
1016# define ev_floor(v) floor (v)
1017#else
1018
1019#include <float.h>
1020
1021/* a floor() replacement function, should be independent of ev_tstamp type */
1022static ev_tstamp noinline
1023ev_floor (ev_tstamp v)
1024{
1025 /* the choice of shift factor is not terribly important */
1026#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1027 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1028#else
1029 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1030#endif
1031
1032 /* argument too large for an unsigned long? */
1033 if (expect_false (v >= shift))
1034 {
1035 ev_tstamp f;
1036
1037 if (v == v - 1.)
1038 return v; /* very large number */
1039
1040 f = shift * ev_floor (v * (1. / shift));
1041 return f + ev_floor (v - f);
1042 }
1043
1044 /* special treatment for negative args? */
1045 if (expect_false (v < 0.))
1046 {
1047 ev_tstamp f = -ev_floor (-v);
1048
1049 return f - (f == v ? 0 : 1);
1050 }
1051
1052 /* fits into an unsigned long */
1053 return (unsigned long)v;
1054}
1055
1056#endif
1057
1058/*****************************************************************************/
1059
1060#ifdef __linux
1061# include <sys/utsname.h>
1062#endif
1063
1064static unsigned int noinline ecb_cold
1065ev_linux_version (void)
1066{
1067#ifdef __linux
1068 unsigned int v = 0;
1069 struct utsname buf;
1070 int i;
1071 char *p = buf.release;
1072
1073 if (uname (&buf))
1074 return 0;
1075
1076 for (i = 3+1; --i; )
1077 {
1078 unsigned int c = 0;
1079
1080 for (;;)
1081 {
1082 if (*p >= '0' && *p <= '9')
1083 c = c * 10 + *p++ - '0';
1084 else
1085 {
1086 p += *p == '.';
1087 break;
1088 }
1089 }
1090
1091 v = (v << 8) | c;
1092 }
1093
1094 return v;
1095#else
1096 return 0;
1097#endif
1098}
1099
1100/*****************************************************************************/
1101
1102#if EV_AVOID_STDIO
1103static void noinline ecb_cold
1104ev_printerr (const char *msg)
1105{
1106 write (STDERR_FILENO, msg, strlen (msg));
1107}
1108#endif
1109
484static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
485 1111
486void 1112void ecb_cold
487ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
488{ 1114{
489 syserr_cb = cb; 1115 syserr_cb = cb;
490} 1116}
491 1117
492static void noinline 1118static void noinline ecb_cold
493ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
494{ 1120{
495 if (!msg) 1121 if (!msg)
496 msg = "(libev) system error"; 1122 msg = "(libev) system error";
497 1123
498 if (syserr_cb) 1124 if (syserr_cb)
499 syserr_cb (msg); 1125 syserr_cb (msg);
500 else 1126 else
501 { 1127 {
1128#if EV_AVOID_STDIO
1129 ev_printerr (msg);
1130 ev_printerr (": ");
1131 ev_printerr (strerror (errno));
1132 ev_printerr ("\n");
1133#else
502 perror (msg); 1134 perror (msg);
1135#endif
503 abort (); 1136 abort ();
504 } 1137 }
505} 1138}
506 1139
507static void * 1140static void *
508ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
509{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
510 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
511 * implement realloc (x, 0) (as required by both ansi c-98 and 1147 * implement realloc (x, 0) (as required by both ansi c-89 and
512 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
513 */ 1149 */
514 1150
515 if (size) 1151 if (size)
516 return realloc (ptr, size); 1152 return realloc (ptr, size);
517 1153
518 free (ptr); 1154 free (ptr);
519 return 0; 1155 return 0;
1156#endif
520} 1157}
521 1158
522static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
523 1160
524void 1161void ecb_cold
525ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
526{ 1163{
527 alloc = cb; 1164 alloc = cb;
528} 1165}
529 1166
530inline_speed void * 1167inline_speed void *
… …
532{ 1169{
533 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
534 1171
535 if (!ptr && size) 1172 if (!ptr && size)
536 { 1173 {
1174#if EV_AVOID_STDIO
1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1176#else
537 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1178#endif
538 abort (); 1179 abort ();
539 } 1180 }
540 1181
541 return ptr; 1182 return ptr;
542} 1183}
… …
558 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1199 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
559 unsigned char unused; 1200 unsigned char unused;
560#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
561 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
562#endif 1203#endif
563#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
564 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
565#endif 1209#endif
566} ANFD; 1210} ANFD;
567 1211
568/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
569typedef struct 1213typedef struct
… …
611 #undef VAR 1255 #undef VAR
612 }; 1256 };
613 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
614 1258
615 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
616 struct ev_loop *ev_default_loop_ptr; 1260 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
617 1261
618#else 1262#else
619 1263
620 ev_tstamp ev_rt_now; 1264 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
621 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
622 #include "ev_vars.h" 1266 #include "ev_vars.h"
623 #undef VAR 1267 #undef VAR
624 1268
625 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
626 1270
627#endif 1271#endif
628 1272
629#if EV_MINIMAL < 2 1273#if EV_FEATURE_API
630# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1274# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
631# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1275# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
632# define EV_INVOKE_PENDING invoke_cb (EV_A) 1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
633#else 1277#else
634# define EV_RELEASE_CB (void)0 1278# define EV_RELEASE_CB (void)0
635# define EV_ACQUIRE_CB (void)0 1279# define EV_ACQUIRE_CB (void)0
636# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
637#endif 1281#endif
638 1282
639#define EVUNLOOP_RECURSE 0x80 1283#define EVBREAK_RECURSE 0x80
640 1284
641/*****************************************************************************/ 1285/*****************************************************************************/
642 1286
643#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
644ev_tstamp 1288ev_tstamp
645ev_time (void) 1289ev_time (void) EV_THROW
646{ 1290{
647#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
648 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
649 { 1293 {
650 struct timespec ts; 1294 struct timespec ts;
… …
674 return ev_time (); 1318 return ev_time ();
675} 1319}
676 1320
677#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
678ev_tstamp 1322ev_tstamp
679ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
680{ 1324{
681 return ev_rt_now; 1325 return ev_rt_now;
682} 1326}
683#endif 1327#endif
684 1328
685void 1329void
686ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
687{ 1331{
688 if (delay > 0.) 1332 if (delay > 0.)
689 { 1333 {
690#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
691 struct timespec ts; 1335 struct timespec ts;
692 1336
693 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
694 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
695
696 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
697#elif defined(_WIN32) 1339#elif defined _WIN32
698 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
699#else 1341#else
700 struct timeval tv; 1342 struct timeval tv;
701 1343
702 tv.tv_sec = (time_t)delay;
703 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
704
705 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
706 /* something not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
707 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
708 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
709#endif 1349#endif
710 } 1350 }
711} 1351}
712 1352
713/*****************************************************************************/ 1353/*****************************************************************************/
714 1354
715#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1355#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
716 1356
717/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
718/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
719inline_size int 1359inline_size int
720array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
721{ 1361{
722 int ncur = cur + 1; 1362 int ncur = cur + 1;
723 1363
724 do 1364 do
725 ncur <<= 1; 1365 ncur <<= 1;
726 while (cnt > ncur); 1366 while (cnt > ncur);
727 1367
728 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1368 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
729 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
730 { 1370 {
731 ncur *= elem; 1371 ncur *= elem;
732 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1372 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
733 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
735 } 1375 }
736 1376
737 return ncur; 1377 return ncur;
738} 1378}
739 1379
740static noinline void * 1380static void * noinline ecb_cold
741array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
742{ 1382{
743 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
744 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
745} 1385}
… …
748 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
749 1389
750#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
751 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
752 { \ 1392 { \
753 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
754 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
755 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
756 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
757 } 1397 }
758 1398
… …
776pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
777{ 1417{
778} 1418}
779 1419
780void noinline 1420void noinline
781ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
782{ 1422{
783 W w_ = (W)w; 1423 W w_ = (W)w;
784 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
785 1425
786 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
790 w_->pending = ++pendingcnt [pri]; 1430 w_->pending = ++pendingcnt [pri];
791 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1431 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
792 pendings [pri][w_->pending - 1].w = w_; 1432 pendings [pri][w_->pending - 1].w = w_;
793 pendings [pri][w_->pending - 1].events = revents; 1433 pendings [pri][w_->pending - 1].events = revents;
794 } 1434 }
1435
1436 pendingpri = NUMPRI - 1;
795} 1437}
796 1438
797inline_speed void 1439inline_speed void
798feed_reverse (EV_P_ W w) 1440feed_reverse (EV_P_ W w)
799{ 1441{
… …
819} 1461}
820 1462
821/*****************************************************************************/ 1463/*****************************************************************************/
822 1464
823inline_speed void 1465inline_speed void
824fd_event_nc (EV_P_ int fd, int revents) 1466fd_event_nocheck (EV_P_ int fd, int revents)
825{ 1467{
826 ANFD *anfd = anfds + fd; 1468 ANFD *anfd = anfds + fd;
827 ev_io *w; 1469 ev_io *w;
828 1470
829 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1471 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
841fd_event (EV_P_ int fd, int revents) 1483fd_event (EV_P_ int fd, int revents)
842{ 1484{
843 ANFD *anfd = anfds + fd; 1485 ANFD *anfd = anfds + fd;
844 1486
845 if (expect_true (!anfd->reify)) 1487 if (expect_true (!anfd->reify))
846 fd_event_nc (EV_A_ fd, revents); 1488 fd_event_nocheck (EV_A_ fd, revents);
847} 1489}
848 1490
849void 1491void
850ev_feed_fd_event (EV_P_ int fd, int revents) 1492ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
851{ 1493{
852 if (fd >= 0 && fd < anfdmax) 1494 if (fd >= 0 && fd < anfdmax)
853 fd_event_nc (EV_A_ fd, revents); 1495 fd_event_nocheck (EV_A_ fd, revents);
854} 1496}
855 1497
856/* make sure the external fd watch events are in-sync */ 1498/* make sure the external fd watch events are in-sync */
857/* with the kernel/libev internal state */ 1499/* with the kernel/libev internal state */
858inline_size void 1500inline_size void
859fd_reify (EV_P) 1501fd_reify (EV_P)
860{ 1502{
861 int i; 1503 int i;
862 1504
1505#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1506 for (i = 0; i < fdchangecnt; ++i)
1507 {
1508 int fd = fdchanges [i];
1509 ANFD *anfd = anfds + fd;
1510
1511 if (anfd->reify & EV__IOFDSET && anfd->head)
1512 {
1513 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1514
1515 if (handle != anfd->handle)
1516 {
1517 unsigned long arg;
1518
1519 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1520
1521 /* handle changed, but fd didn't - we need to do it in two steps */
1522 backend_modify (EV_A_ fd, anfd->events, 0);
1523 anfd->events = 0;
1524 anfd->handle = handle;
1525 }
1526 }
1527 }
1528#endif
1529
863 for (i = 0; i < fdchangecnt; ++i) 1530 for (i = 0; i < fdchangecnt; ++i)
864 { 1531 {
865 int fd = fdchanges [i]; 1532 int fd = fdchanges [i];
866 ANFD *anfd = anfds + fd; 1533 ANFD *anfd = anfds + fd;
867 ev_io *w; 1534 ev_io *w;
868 1535
869 unsigned char events = 0; 1536 unsigned char o_events = anfd->events;
1537 unsigned char o_reify = anfd->reify;
870 1538
871 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1539 anfd->reify = 0;
872 events |= (unsigned char)w->events;
873 1540
874#if EV_SELECT_IS_WINSOCKET 1541 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
875 if (events)
876 { 1542 {
877 unsigned long arg; 1543 anfd->events = 0;
878 #ifdef EV_FD_TO_WIN32_HANDLE 1544
879 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1545 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
880 #else 1546 anfd->events |= (unsigned char)w->events;
881 anfd->handle = _get_osfhandle (fd); 1547
882 #endif 1548 if (o_events != anfd->events)
883 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1549 o_reify = EV__IOFDSET; /* actually |= */
884 } 1550 }
885#endif
886 1551
887 { 1552 if (o_reify & EV__IOFDSET)
888 unsigned char o_events = anfd->events;
889 unsigned char o_reify = anfd->reify;
890
891 anfd->reify = 0;
892 anfd->events = events;
893
894 if (o_events != events || o_reify & EV__IOFDSET)
895 backend_modify (EV_A_ fd, o_events, events); 1553 backend_modify (EV_A_ fd, o_events, anfd->events);
896 }
897 } 1554 }
898 1555
899 fdchangecnt = 0; 1556 fdchangecnt = 0;
900} 1557}
901 1558
… …
913 fdchanges [fdchangecnt - 1] = fd; 1570 fdchanges [fdchangecnt - 1] = fd;
914 } 1571 }
915} 1572}
916 1573
917/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1574/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
918inline_speed void 1575inline_speed void ecb_cold
919fd_kill (EV_P_ int fd) 1576fd_kill (EV_P_ int fd)
920{ 1577{
921 ev_io *w; 1578 ev_io *w;
922 1579
923 while ((w = (ev_io *)anfds [fd].head)) 1580 while ((w = (ev_io *)anfds [fd].head))
… …
925 ev_io_stop (EV_A_ w); 1582 ev_io_stop (EV_A_ w);
926 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1583 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
927 } 1584 }
928} 1585}
929 1586
930/* check whether the given fd is atcually valid, for error recovery */ 1587/* check whether the given fd is actually valid, for error recovery */
931inline_size int 1588inline_size int ecb_cold
932fd_valid (int fd) 1589fd_valid (int fd)
933{ 1590{
934#ifdef _WIN32 1591#ifdef _WIN32
935 return _get_osfhandle (fd) != -1; 1592 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
936#else 1593#else
937 return fcntl (fd, F_GETFD) != -1; 1594 return fcntl (fd, F_GETFD) != -1;
938#endif 1595#endif
939} 1596}
940 1597
941/* called on EBADF to verify fds */ 1598/* called on EBADF to verify fds */
942static void noinline 1599static void noinline ecb_cold
943fd_ebadf (EV_P) 1600fd_ebadf (EV_P)
944{ 1601{
945 int fd; 1602 int fd;
946 1603
947 for (fd = 0; fd < anfdmax; ++fd) 1604 for (fd = 0; fd < anfdmax; ++fd)
… …
949 if (!fd_valid (fd) && errno == EBADF) 1606 if (!fd_valid (fd) && errno == EBADF)
950 fd_kill (EV_A_ fd); 1607 fd_kill (EV_A_ fd);
951} 1608}
952 1609
953/* called on ENOMEM in select/poll to kill some fds and retry */ 1610/* called on ENOMEM in select/poll to kill some fds and retry */
954static void noinline 1611static void noinline ecb_cold
955fd_enomem (EV_P) 1612fd_enomem (EV_P)
956{ 1613{
957 int fd; 1614 int fd;
958 1615
959 for (fd = anfdmax; fd--; ) 1616 for (fd = anfdmax; fd--; )
960 if (anfds [fd].events) 1617 if (anfds [fd].events)
961 { 1618 {
962 fd_kill (EV_A_ fd); 1619 fd_kill (EV_A_ fd);
963 return; 1620 break;
964 } 1621 }
965} 1622}
966 1623
967/* usually called after fork if backend needs to re-arm all fds from scratch */ 1624/* usually called after fork if backend needs to re-arm all fds from scratch */
968static void noinline 1625static void noinline
… …
977 anfds [fd].emask = 0; 1634 anfds [fd].emask = 0;
978 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1635 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
979 } 1636 }
980} 1637}
981 1638
1639/* used to prepare libev internal fd's */
1640/* this is not fork-safe */
1641inline_speed void
1642fd_intern (int fd)
1643{
1644#ifdef _WIN32
1645 unsigned long arg = 1;
1646 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1647#else
1648 fcntl (fd, F_SETFD, FD_CLOEXEC);
1649 fcntl (fd, F_SETFL, O_NONBLOCK);
1650#endif
1651}
1652
982/*****************************************************************************/ 1653/*****************************************************************************/
983 1654
984/* 1655/*
985 * the heap functions want a real array index. array index 0 uis guaranteed to not 1656 * the heap functions want a real array index. array index 0 is guaranteed to not
986 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1657 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
987 * the branching factor of the d-tree. 1658 * the branching factor of the d-tree.
988 */ 1659 */
989 1660
990/* 1661/*
… …
1058 1729
1059 for (;;) 1730 for (;;)
1060 { 1731 {
1061 int c = k << 1; 1732 int c = k << 1;
1062 1733
1063 if (c > N + HEAP0 - 1) 1734 if (c >= N + HEAP0)
1064 break; 1735 break;
1065 1736
1066 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1737 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1067 ? 1 : 0; 1738 ? 1 : 0;
1068 1739
… …
1104 1775
1105/* move an element suitably so it is in a correct place */ 1776/* move an element suitably so it is in a correct place */
1106inline_size void 1777inline_size void
1107adjustheap (ANHE *heap, int N, int k) 1778adjustheap (ANHE *heap, int N, int k)
1108{ 1779{
1109 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1780 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1110 upheap (heap, k); 1781 upheap (heap, k);
1111 else 1782 else
1112 downheap (heap, N, k); 1783 downheap (heap, N, k);
1113} 1784}
1114 1785
… …
1127/*****************************************************************************/ 1798/*****************************************************************************/
1128 1799
1129/* associate signal watchers to a signal signal */ 1800/* associate signal watchers to a signal signal */
1130typedef struct 1801typedef struct
1131{ 1802{
1803 EV_ATOMIC_T pending;
1132#if EV_MULTIPLICITY 1804#if EV_MULTIPLICITY
1133 EV_P; 1805 EV_P;
1134#endif 1806#endif
1135 WL head; 1807 WL head;
1136 EV_ATOMIC_T gotsig;
1137} ANSIG; 1808} ANSIG;
1138 1809
1139static ANSIG signals [EV_NSIG - 1]; 1810static ANSIG signals [EV_NSIG - 1];
1140static EV_ATOMIC_T gotsig;
1141 1811
1142/*****************************************************************************/ 1812/*****************************************************************************/
1143 1813
1144/* used to prepare libev internal fd's */ 1814#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1145/* this is not fork-safe */
1146inline_speed void
1147fd_intern (int fd)
1148{
1149#ifdef _WIN32
1150 unsigned long arg = 1;
1151 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1152#else
1153 fcntl (fd, F_SETFD, FD_CLOEXEC);
1154 fcntl (fd, F_SETFL, O_NONBLOCK);
1155#endif
1156}
1157 1815
1158static void noinline 1816static void noinline ecb_cold
1159evpipe_init (EV_P) 1817evpipe_init (EV_P)
1160{ 1818{
1161 if (!ev_is_active (&pipe_w)) 1819 if (!ev_is_active (&pipe_w))
1162 { 1820 {
1163#if EV_USE_EVENTFD 1821# if EV_USE_EVENTFD
1164 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1822 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1165 if (evfd < 0 && errno == EINVAL) 1823 if (evfd < 0 && errno == EINVAL)
1166 evfd = eventfd (0, 0); 1824 evfd = eventfd (0, 0);
1167 1825
1168 if (evfd >= 0) 1826 if (evfd >= 0)
… …
1170 evpipe [0] = -1; 1828 evpipe [0] = -1;
1171 fd_intern (evfd); /* doing it twice doesn't hurt */ 1829 fd_intern (evfd); /* doing it twice doesn't hurt */
1172 ev_io_set (&pipe_w, evfd, EV_READ); 1830 ev_io_set (&pipe_w, evfd, EV_READ);
1173 } 1831 }
1174 else 1832 else
1175#endif 1833# endif
1176 { 1834 {
1177 while (pipe (evpipe)) 1835 while (pipe (evpipe))
1178 ev_syserr ("(libev) error creating signal/async pipe"); 1836 ev_syserr ("(libev) error creating signal/async pipe");
1179 1837
1180 fd_intern (evpipe [0]); 1838 fd_intern (evpipe [0]);
… …
1185 ev_io_start (EV_A_ &pipe_w); 1843 ev_io_start (EV_A_ &pipe_w);
1186 ev_unref (EV_A); /* watcher should not keep loop alive */ 1844 ev_unref (EV_A); /* watcher should not keep loop alive */
1187 } 1845 }
1188} 1846}
1189 1847
1190inline_size void 1848inline_speed void
1191evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1849evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1192{ 1850{
1193 if (!*flag) 1851 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1852
1853 if (expect_true (*flag))
1854 return;
1855
1856 *flag = 1;
1857
1858 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1859
1860 pipe_write_skipped = 1;
1861
1862 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1863
1864 if (pipe_write_wanted)
1194 { 1865 {
1866 int old_errno;
1867
1868 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1869
1195 int old_errno = errno; /* save errno because write might clobber it */ 1870 old_errno = errno; /* save errno because write will clobber it */
1196
1197 *flag = 1;
1198 1871
1199#if EV_USE_EVENTFD 1872#if EV_USE_EVENTFD
1200 if (evfd >= 0) 1873 if (evfd >= 0)
1201 { 1874 {
1202 uint64_t counter = 1; 1875 uint64_t counter = 1;
1203 write (evfd, &counter, sizeof (uint64_t)); 1876 write (evfd, &counter, sizeof (uint64_t));
1204 } 1877 }
1205 else 1878 else
1206#endif 1879#endif
1880 {
1881 /* win32 people keep sending patches that change this write() to send() */
1882 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1883 /* so when you think this write should be a send instead, please find out */
1884 /* where your send() is from - it's definitely not the microsoft send, and */
1885 /* tell me. thank you. */
1886 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1887 /* check the ev documentation on how to use this flag */
1207 write (evpipe [1], &old_errno, 1); 1888 write (evpipe [1], &(evpipe [1]), 1);
1889 }
1208 1890
1209 errno = old_errno; 1891 errno = old_errno;
1210 } 1892 }
1211} 1893}
1212 1894
1213/* called whenever the libev signal pipe */ 1895/* called whenever the libev signal pipe */
1214/* got some events (signal, async) */ 1896/* got some events (signal, async) */
1215static void 1897static void
1216pipecb (EV_P_ ev_io *iow, int revents) 1898pipecb (EV_P_ ev_io *iow, int revents)
1217{ 1899{
1900 int i;
1901
1902 if (revents & EV_READ)
1903 {
1218#if EV_USE_EVENTFD 1904#if EV_USE_EVENTFD
1219 if (evfd >= 0) 1905 if (evfd >= 0)
1220 { 1906 {
1221 uint64_t counter; 1907 uint64_t counter;
1222 read (evfd, &counter, sizeof (uint64_t)); 1908 read (evfd, &counter, sizeof (uint64_t));
1223 } 1909 }
1224 else 1910 else
1225#endif 1911#endif
1226 { 1912 {
1227 char dummy; 1913 char dummy;
1914 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1228 read (evpipe [0], &dummy, 1); 1915 read (evpipe [0], &dummy, 1);
1916 }
1917 }
1918
1919 pipe_write_skipped = 0;
1920
1921 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1922
1923#if EV_SIGNAL_ENABLE
1924 if (sig_pending)
1229 } 1925 {
1926 sig_pending = 0;
1230 1927
1231 if (gotsig && ev_is_default_loop (EV_A)) 1928 ECB_MEMORY_FENCE_RELEASE;
1232 {
1233 int signum;
1234 gotsig = 0;
1235 1929
1236 for (signum = EV_NSIG - 1; signum--; ) 1930 for (i = EV_NSIG - 1; i--; )
1237 if (signals [signum].gotsig) 1931 if (expect_false (signals [i].pending))
1238 ev_feed_signal_event (EV_A_ signum + 1); 1932 ev_feed_signal_event (EV_A_ i + 1);
1239 } 1933 }
1934#endif
1240 1935
1241#if EV_ASYNC_ENABLE 1936#if EV_ASYNC_ENABLE
1242 if (gotasync) 1937 if (async_pending)
1243 { 1938 {
1244 int i; 1939 async_pending = 0;
1245 gotasync = 0; 1940
1941 ECB_MEMORY_FENCE_RELEASE;
1246 1942
1247 for (i = asynccnt; i--; ) 1943 for (i = asynccnt; i--; )
1248 if (asyncs [i]->sent) 1944 if (asyncs [i]->sent)
1249 { 1945 {
1250 asyncs [i]->sent = 0; 1946 asyncs [i]->sent = 0;
… …
1254#endif 1950#endif
1255} 1951}
1256 1952
1257/*****************************************************************************/ 1953/*****************************************************************************/
1258 1954
1955void
1956ev_feed_signal (int signum) EV_THROW
1957{
1958#if EV_MULTIPLICITY
1959 EV_P = signals [signum - 1].loop;
1960
1961 if (!EV_A)
1962 return;
1963#endif
1964
1965 if (!ev_active (&pipe_w))
1966 return;
1967
1968 signals [signum - 1].pending = 1;
1969 evpipe_write (EV_A_ &sig_pending);
1970}
1971
1259static void 1972static void
1260ev_sighandler (int signum) 1973ev_sighandler (int signum)
1261{ 1974{
1975#ifdef _WIN32
1976 signal (signum, ev_sighandler);
1977#endif
1978
1979 ev_feed_signal (signum);
1980}
1981
1982void noinline
1983ev_feed_signal_event (EV_P_ int signum) EV_THROW
1984{
1985 WL w;
1986
1987 if (expect_false (signum <= 0 || signum > EV_NSIG))
1988 return;
1989
1990 --signum;
1991
1262#if EV_MULTIPLICITY 1992#if EV_MULTIPLICITY
1263 EV_P = signals [signum - 1].loop; 1993 /* it is permissible to try to feed a signal to the wrong loop */
1264#endif 1994 /* or, likely more useful, feeding a signal nobody is waiting for */
1265 1995
1266#if _WIN32 1996 if (expect_false (signals [signum].loop != EV_A))
1267 signal (signum, ev_sighandler);
1268#endif
1269
1270 signals [signum - 1].gotsig = 1;
1271 evpipe_write (EV_A_ &gotsig);
1272}
1273
1274void noinline
1275ev_feed_signal_event (EV_P_ int signum)
1276{
1277 WL w;
1278
1279#if EV_MULTIPLICITY
1280 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1281#endif
1282
1283 if (signum <= 0 || signum > EV_NSIG)
1284 return; 1997 return;
1998#endif
1285 1999
1286 --signum;
1287
1288 signals [signum].gotsig = 0; 2000 signals [signum].pending = 0;
1289 2001
1290 for (w = signals [signum].head; w; w = w->next) 2002 for (w = signals [signum].head; w; w = w->next)
1291 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2003 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1292} 2004}
1293 2005
… …
1309 break; 2021 break;
1310 } 2022 }
1311} 2023}
1312#endif 2024#endif
1313 2025
2026#endif
2027
1314/*****************************************************************************/ 2028/*****************************************************************************/
1315 2029
2030#if EV_CHILD_ENABLE
1316static WL childs [EV_PID_HASHSIZE]; 2031static WL childs [EV_PID_HASHSIZE];
1317
1318#ifndef _WIN32
1319 2032
1320static ev_signal childev; 2033static ev_signal childev;
1321 2034
1322#ifndef WIFCONTINUED 2035#ifndef WIFCONTINUED
1323# define WIFCONTINUED(status) 0 2036# define WIFCONTINUED(status) 0
… …
1328child_reap (EV_P_ int chain, int pid, int status) 2041child_reap (EV_P_ int chain, int pid, int status)
1329{ 2042{
1330 ev_child *w; 2043 ev_child *w;
1331 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2044 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1332 2045
1333 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2046 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1334 { 2047 {
1335 if ((w->pid == pid || !w->pid) 2048 if ((w->pid == pid || !w->pid)
1336 && (!traced || (w->flags & 1))) 2049 && (!traced || (w->flags & 1)))
1337 { 2050 {
1338 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2051 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1363 /* make sure we are called again until all children have been reaped */ 2076 /* make sure we are called again until all children have been reaped */
1364 /* we need to do it this way so that the callback gets called before we continue */ 2077 /* we need to do it this way so that the callback gets called before we continue */
1365 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2078 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1366 2079
1367 child_reap (EV_A_ pid, pid, status); 2080 child_reap (EV_A_ pid, pid, status);
1368 if (EV_PID_HASHSIZE > 1) 2081 if ((EV_PID_HASHSIZE) > 1)
1369 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2082 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1370} 2083}
1371 2084
1372#endif 2085#endif
1373 2086
1374/*****************************************************************************/ 2087/*****************************************************************************/
1375 2088
2089#if EV_USE_IOCP
2090# include "ev_iocp.c"
2091#endif
1376#if EV_USE_PORT 2092#if EV_USE_PORT
1377# include "ev_port.c" 2093# include "ev_port.c"
1378#endif 2094#endif
1379#if EV_USE_KQUEUE 2095#if EV_USE_KQUEUE
1380# include "ev_kqueue.c" 2096# include "ev_kqueue.c"
… …
1387#endif 2103#endif
1388#if EV_USE_SELECT 2104#if EV_USE_SELECT
1389# include "ev_select.c" 2105# include "ev_select.c"
1390#endif 2106#endif
1391 2107
1392int 2108int ecb_cold
1393ev_version_major (void) 2109ev_version_major (void) EV_THROW
1394{ 2110{
1395 return EV_VERSION_MAJOR; 2111 return EV_VERSION_MAJOR;
1396} 2112}
1397 2113
1398int 2114int ecb_cold
1399ev_version_minor (void) 2115ev_version_minor (void) EV_THROW
1400{ 2116{
1401 return EV_VERSION_MINOR; 2117 return EV_VERSION_MINOR;
1402} 2118}
1403 2119
1404/* return true if we are running with elevated privileges and should ignore env variables */ 2120/* return true if we are running with elevated privileges and should ignore env variables */
1405int inline_size 2121int inline_size ecb_cold
1406enable_secure (void) 2122enable_secure (void)
1407{ 2123{
1408#ifdef _WIN32 2124#ifdef _WIN32
1409 return 0; 2125 return 0;
1410#else 2126#else
1411 return getuid () != geteuid () 2127 return getuid () != geteuid ()
1412 || getgid () != getegid (); 2128 || getgid () != getegid ();
1413#endif 2129#endif
1414} 2130}
1415 2131
1416unsigned int 2132unsigned int ecb_cold
1417ev_supported_backends (void) 2133ev_supported_backends (void) EV_THROW
1418{ 2134{
1419 unsigned int flags = 0; 2135 unsigned int flags = 0;
1420 2136
1421 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2137 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1422 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2138 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1425 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2141 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1426 2142
1427 return flags; 2143 return flags;
1428} 2144}
1429 2145
1430unsigned int 2146unsigned int ecb_cold
1431ev_recommended_backends (void) 2147ev_recommended_backends (void) EV_THROW
1432{ 2148{
1433 unsigned int flags = ev_supported_backends (); 2149 unsigned int flags = ev_supported_backends ();
1434 2150
1435#ifndef __NetBSD__ 2151#ifndef __NetBSD__
1436 /* kqueue is borked on everything but netbsd apparently */ 2152 /* kqueue is borked on everything but netbsd apparently */
… …
1440#ifdef __APPLE__ 2156#ifdef __APPLE__
1441 /* only select works correctly on that "unix-certified" platform */ 2157 /* only select works correctly on that "unix-certified" platform */
1442 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2158 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1443 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2159 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1444#endif 2160#endif
2161#ifdef __FreeBSD__
2162 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2163#endif
1445 2164
1446 return flags; 2165 return flags;
1447} 2166}
1448 2167
2168unsigned int ecb_cold
2169ev_embeddable_backends (void) EV_THROW
2170{
2171 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2172
2173 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2174 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2175 flags &= ~EVBACKEND_EPOLL;
2176
2177 return flags;
2178}
2179
1449unsigned int 2180unsigned int
1450ev_embeddable_backends (void) 2181ev_backend (EV_P) EV_THROW
1451{ 2182{
1452 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2183 return backend;
1453
1454 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1455 /* please fix it and tell me how to detect the fix */
1456 flags &= ~EVBACKEND_EPOLL;
1457
1458 return flags;
1459} 2184}
1460 2185
2186#if EV_FEATURE_API
1461unsigned int 2187unsigned int
1462ev_backend (EV_P) 2188ev_iteration (EV_P) EV_THROW
1463{ 2189{
1464 return backend; 2190 return loop_count;
1465} 2191}
1466 2192
1467#if EV_MINIMAL < 2
1468unsigned int 2193unsigned int
1469ev_loop_count (EV_P) 2194ev_depth (EV_P) EV_THROW
1470{
1471 return loop_count;
1472}
1473
1474unsigned int
1475ev_loop_depth (EV_P)
1476{ 2195{
1477 return loop_depth; 2196 return loop_depth;
1478} 2197}
1479 2198
1480void 2199void
1481ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2200ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1482{ 2201{
1483 io_blocktime = interval; 2202 io_blocktime = interval;
1484} 2203}
1485 2204
1486void 2205void
1487ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1488{ 2207{
1489 timeout_blocktime = interval; 2208 timeout_blocktime = interval;
1490} 2209}
1491 2210
1492void 2211void
1493ev_set_userdata (EV_P_ void *data) 2212ev_set_userdata (EV_P_ void *data) EV_THROW
1494{ 2213{
1495 userdata = data; 2214 userdata = data;
1496} 2215}
1497 2216
1498void * 2217void *
1499ev_userdata (EV_P) 2218ev_userdata (EV_P) EV_THROW
1500{ 2219{
1501 return userdata; 2220 return userdata;
1502} 2221}
1503 2222
2223void
1504void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2224ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1505{ 2225{
1506 invoke_cb = invoke_pending_cb; 2226 invoke_cb = invoke_pending_cb;
1507} 2227}
1508 2228
2229void
1509void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2230ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1510{ 2231{
1511 release_cb = release; 2232 release_cb = release;
1512 acquire_cb = acquire; 2233 acquire_cb = acquire;
1513} 2234}
1514#endif 2235#endif
1515 2236
1516/* initialise a loop structure, must be zero-initialised */ 2237/* initialise a loop structure, must be zero-initialised */
1517static void noinline 2238static void noinline ecb_cold
1518loop_init (EV_P_ unsigned int flags) 2239loop_init (EV_P_ unsigned int flags) EV_THROW
1519{ 2240{
1520 if (!backend) 2241 if (!backend)
1521 { 2242 {
2243 origflags = flags;
2244
1522#if EV_USE_REALTIME 2245#if EV_USE_REALTIME
1523 if (!have_realtime) 2246 if (!have_realtime)
1524 { 2247 {
1525 struct timespec ts; 2248 struct timespec ts;
1526 2249
… …
1548 if (!(flags & EVFLAG_NOENV) 2271 if (!(flags & EVFLAG_NOENV)
1549 && !enable_secure () 2272 && !enable_secure ()
1550 && getenv ("LIBEV_FLAGS")) 2273 && getenv ("LIBEV_FLAGS"))
1551 flags = atoi (getenv ("LIBEV_FLAGS")); 2274 flags = atoi (getenv ("LIBEV_FLAGS"));
1552 2275
1553 ev_rt_now = ev_time (); 2276 ev_rt_now = ev_time ();
1554 mn_now = get_clock (); 2277 mn_now = get_clock ();
1555 now_floor = mn_now; 2278 now_floor = mn_now;
1556 rtmn_diff = ev_rt_now - mn_now; 2279 rtmn_diff = ev_rt_now - mn_now;
1557#if EV_MINIMAL < 2 2280#if EV_FEATURE_API
1558 invoke_cb = ev_invoke_pending; 2281 invoke_cb = ev_invoke_pending;
1559#endif 2282#endif
1560 2283
1561 io_blocktime = 0.; 2284 io_blocktime = 0.;
1562 timeout_blocktime = 0.; 2285 timeout_blocktime = 0.;
1563 backend = 0; 2286 backend = 0;
1564 backend_fd = -1; 2287 backend_fd = -1;
1565 gotasync = 0; 2288 sig_pending = 0;
2289#if EV_ASYNC_ENABLE
2290 async_pending = 0;
2291#endif
2292 pipe_write_skipped = 0;
2293 pipe_write_wanted = 0;
1566#if EV_USE_INOTIFY 2294#if EV_USE_INOTIFY
1567 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2295 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1568#endif 2296#endif
1569#if EV_USE_SIGNALFD 2297#if EV_USE_SIGNALFD
1570 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; 2298 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1571#endif 2299#endif
1572 2300
1573 if (!(flags & 0x0000ffffU)) 2301 if (!(flags & EVBACKEND_MASK))
1574 flags |= ev_recommended_backends (); 2302 flags |= ev_recommended_backends ();
1575 2303
2304#if EV_USE_IOCP
2305 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2306#endif
1576#if EV_USE_PORT 2307#if EV_USE_PORT
1577 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2308 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1578#endif 2309#endif
1579#if EV_USE_KQUEUE 2310#if EV_USE_KQUEUE
1580 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2311 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1589 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1590#endif 2321#endif
1591 2322
1592 ev_prepare_init (&pending_w, pendingcb); 2323 ev_prepare_init (&pending_w, pendingcb);
1593 2324
2325#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1594 ev_init (&pipe_w, pipecb); 2326 ev_init (&pipe_w, pipecb);
1595 ev_set_priority (&pipe_w, EV_MAXPRI); 2327 ev_set_priority (&pipe_w, EV_MAXPRI);
2328#endif
1596 } 2329 }
1597} 2330}
1598 2331
1599/* free up a loop structure */ 2332/* free up a loop structure */
1600static void noinline 2333void ecb_cold
1601loop_destroy (EV_P) 2334ev_loop_destroy (EV_P)
1602{ 2335{
1603 int i; 2336 int i;
2337
2338#if EV_MULTIPLICITY
2339 /* mimic free (0) */
2340 if (!EV_A)
2341 return;
2342#endif
2343
2344#if EV_CLEANUP_ENABLE
2345 /* queue cleanup watchers (and execute them) */
2346 if (expect_false (cleanupcnt))
2347 {
2348 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2349 EV_INVOKE_PENDING;
2350 }
2351#endif
2352
2353#if EV_CHILD_ENABLE
2354 if (ev_is_active (&childev))
2355 {
2356 ev_ref (EV_A); /* child watcher */
2357 ev_signal_stop (EV_A_ &childev);
2358 }
2359#endif
1604 2360
1605 if (ev_is_active (&pipe_w)) 2361 if (ev_is_active (&pipe_w))
1606 { 2362 {
1607 /*ev_ref (EV_A);*/ 2363 /*ev_ref (EV_A);*/
1608 /*ev_io_stop (EV_A_ &pipe_w);*/ 2364 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1612 close (evfd); 2368 close (evfd);
1613#endif 2369#endif
1614 2370
1615 if (evpipe [0] >= 0) 2371 if (evpipe [0] >= 0)
1616 { 2372 {
1617 close (evpipe [0]); 2373 EV_WIN32_CLOSE_FD (evpipe [0]);
1618 close (evpipe [1]); 2374 EV_WIN32_CLOSE_FD (evpipe [1]);
1619 } 2375 }
1620 } 2376 }
1621 2377
1622#if EV_USE_SIGNALFD 2378#if EV_USE_SIGNALFD
1623 if (ev_is_active (&sigfd_w)) 2379 if (ev_is_active (&sigfd_w))
1624 {
1625 /*ev_ref (EV_A);*/
1626 /*ev_io_stop (EV_A_ &sigfd_w);*/
1627
1628 close (sigfd); 2380 close (sigfd);
1629 }
1630#endif 2381#endif
1631 2382
1632#if EV_USE_INOTIFY 2383#if EV_USE_INOTIFY
1633 if (fs_fd >= 0) 2384 if (fs_fd >= 0)
1634 close (fs_fd); 2385 close (fs_fd);
1635#endif 2386#endif
1636 2387
1637 if (backend_fd >= 0) 2388 if (backend_fd >= 0)
1638 close (backend_fd); 2389 close (backend_fd);
1639 2390
2391#if EV_USE_IOCP
2392 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2393#endif
1640#if EV_USE_PORT 2394#if EV_USE_PORT
1641 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2395 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1642#endif 2396#endif
1643#if EV_USE_KQUEUE 2397#if EV_USE_KQUEUE
1644 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2398 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1671 array_free (periodic, EMPTY); 2425 array_free (periodic, EMPTY);
1672#endif 2426#endif
1673#if EV_FORK_ENABLE 2427#if EV_FORK_ENABLE
1674 array_free (fork, EMPTY); 2428 array_free (fork, EMPTY);
1675#endif 2429#endif
2430#if EV_CLEANUP_ENABLE
2431 array_free (cleanup, EMPTY);
2432#endif
1676 array_free (prepare, EMPTY); 2433 array_free (prepare, EMPTY);
1677 array_free (check, EMPTY); 2434 array_free (check, EMPTY);
1678#if EV_ASYNC_ENABLE 2435#if EV_ASYNC_ENABLE
1679 array_free (async, EMPTY); 2436 array_free (async, EMPTY);
1680#endif 2437#endif
1681 2438
1682 backend = 0; 2439 backend = 0;
2440
2441#if EV_MULTIPLICITY
2442 if (ev_is_default_loop (EV_A))
2443#endif
2444 ev_default_loop_ptr = 0;
2445#if EV_MULTIPLICITY
2446 else
2447 ev_free (EV_A);
2448#endif
1683} 2449}
1684 2450
1685#if EV_USE_INOTIFY 2451#if EV_USE_INOTIFY
1686inline_size void infy_fork (EV_P); 2452inline_size void infy_fork (EV_P);
1687#endif 2453#endif
… …
1702 infy_fork (EV_A); 2468 infy_fork (EV_A);
1703#endif 2469#endif
1704 2470
1705 if (ev_is_active (&pipe_w)) 2471 if (ev_is_active (&pipe_w))
1706 { 2472 {
1707 /* this "locks" the handlers against writing to the pipe */ 2473 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1708 /* while we modify the fd vars */
1709 gotsig = 1;
1710#if EV_ASYNC_ENABLE
1711 gotasync = 1;
1712#endif
1713 2474
1714 ev_ref (EV_A); 2475 ev_ref (EV_A);
1715 ev_io_stop (EV_A_ &pipe_w); 2476 ev_io_stop (EV_A_ &pipe_w);
1716 2477
1717#if EV_USE_EVENTFD 2478#if EV_USE_EVENTFD
… …
1719 close (evfd); 2480 close (evfd);
1720#endif 2481#endif
1721 2482
1722 if (evpipe [0] >= 0) 2483 if (evpipe [0] >= 0)
1723 { 2484 {
1724 close (evpipe [0]); 2485 EV_WIN32_CLOSE_FD (evpipe [0]);
1725 close (evpipe [1]); 2486 EV_WIN32_CLOSE_FD (evpipe [1]);
1726 } 2487 }
1727 2488
2489#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1728 evpipe_init (EV_A); 2490 evpipe_init (EV_A);
1729 /* now iterate over everything, in case we missed something */ 2491 /* now iterate over everything, in case we missed something */
1730 pipecb (EV_A_ &pipe_w, EV_READ); 2492 pipecb (EV_A_ &pipe_w, EV_READ);
2493#endif
1731 } 2494 }
1732 2495
1733 postfork = 0; 2496 postfork = 0;
1734} 2497}
1735 2498
1736#if EV_MULTIPLICITY 2499#if EV_MULTIPLICITY
1737 2500
1738struct ev_loop * 2501struct ev_loop * ecb_cold
1739ev_loop_new (unsigned int flags) 2502ev_loop_new (unsigned int flags) EV_THROW
1740{ 2503{
1741 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2504 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1742 2505
1743 memset (EV_A, 0, sizeof (struct ev_loop)); 2506 memset (EV_A, 0, sizeof (struct ev_loop));
1744 loop_init (EV_A_ flags); 2507 loop_init (EV_A_ flags);
1745 2508
1746 if (ev_backend (EV_A)) 2509 if (ev_backend (EV_A))
1747 return EV_A; 2510 return EV_A;
1748 2511
2512 ev_free (EV_A);
1749 return 0; 2513 return 0;
1750} 2514}
1751 2515
1752void
1753ev_loop_destroy (EV_P)
1754{
1755 loop_destroy (EV_A);
1756 ev_free (loop);
1757}
1758
1759void
1760ev_loop_fork (EV_P)
1761{
1762 postfork = 1; /* must be in line with ev_default_fork */
1763}
1764#endif /* multiplicity */ 2516#endif /* multiplicity */
1765 2517
1766#if EV_VERIFY 2518#if EV_VERIFY
1767static void noinline 2519static void noinline ecb_cold
1768verify_watcher (EV_P_ W w) 2520verify_watcher (EV_P_ W w)
1769{ 2521{
1770 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2522 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1771 2523
1772 if (w->pending) 2524 if (w->pending)
1773 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2525 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1774} 2526}
1775 2527
1776static void noinline 2528static void noinline ecb_cold
1777verify_heap (EV_P_ ANHE *heap, int N) 2529verify_heap (EV_P_ ANHE *heap, int N)
1778{ 2530{
1779 int i; 2531 int i;
1780 2532
1781 for (i = HEAP0; i < N + HEAP0; ++i) 2533 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1786 2538
1787 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2539 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1788 } 2540 }
1789} 2541}
1790 2542
1791static void noinline 2543static void noinline ecb_cold
1792array_verify (EV_P_ W *ws, int cnt) 2544array_verify (EV_P_ W *ws, int cnt)
1793{ 2545{
1794 while (cnt--) 2546 while (cnt--)
1795 { 2547 {
1796 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2548 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1797 verify_watcher (EV_A_ ws [cnt]); 2549 verify_watcher (EV_A_ ws [cnt]);
1798 } 2550 }
1799} 2551}
1800#endif 2552#endif
1801 2553
1802#if EV_MINIMAL < 2 2554#if EV_FEATURE_API
1803void 2555void ecb_cold
1804ev_loop_verify (EV_P) 2556ev_verify (EV_P) EV_THROW
1805{ 2557{
1806#if EV_VERIFY 2558#if EV_VERIFY
1807 int i; 2559 int i, j;
1808 WL w; 2560 WL w, w2;
1809 2561
1810 assert (activecnt >= -1); 2562 assert (activecnt >= -1);
1811 2563
1812 assert (fdchangemax >= fdchangecnt); 2564 assert (fdchangemax >= fdchangecnt);
1813 for (i = 0; i < fdchangecnt; ++i) 2565 for (i = 0; i < fdchangecnt; ++i)
1814 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2566 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1815 2567
1816 assert (anfdmax >= 0); 2568 assert (anfdmax >= 0);
1817 for (i = 0; i < anfdmax; ++i) 2569 for (i = j = 0; i < anfdmax; ++i)
1818 for (w = anfds [i].head; w; w = w->next) 2570 for (w = w2 = anfds [i].head; w; w = w->next)
1819 { 2571 {
1820 verify_watcher (EV_A_ (W)w); 2572 verify_watcher (EV_A_ (W)w);
2573
2574 if (++j & 1)
2575 w2 = w2->next;
2576
2577 assert (("libev: io watcher list contains a loop", w != w2));
1821 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2578 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1822 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2579 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1823 } 2580 }
1824 2581
1825 assert (timermax >= timercnt); 2582 assert (timermax >= timercnt);
… …
1843#if EV_FORK_ENABLE 2600#if EV_FORK_ENABLE
1844 assert (forkmax >= forkcnt); 2601 assert (forkmax >= forkcnt);
1845 array_verify (EV_A_ (W *)forks, forkcnt); 2602 array_verify (EV_A_ (W *)forks, forkcnt);
1846#endif 2603#endif
1847 2604
2605#if EV_CLEANUP_ENABLE
2606 assert (cleanupmax >= cleanupcnt);
2607 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2608#endif
2609
1848#if EV_ASYNC_ENABLE 2610#if EV_ASYNC_ENABLE
1849 assert (asyncmax >= asynccnt); 2611 assert (asyncmax >= asynccnt);
1850 array_verify (EV_A_ (W *)asyncs, asynccnt); 2612 array_verify (EV_A_ (W *)asyncs, asynccnt);
1851#endif 2613#endif
1852 2614
2615#if EV_PREPARE_ENABLE
1853 assert (preparemax >= preparecnt); 2616 assert (preparemax >= preparecnt);
1854 array_verify (EV_A_ (W *)prepares, preparecnt); 2617 array_verify (EV_A_ (W *)prepares, preparecnt);
2618#endif
1855 2619
2620#if EV_CHECK_ENABLE
1856 assert (checkmax >= checkcnt); 2621 assert (checkmax >= checkcnt);
1857 array_verify (EV_A_ (W *)checks, checkcnt); 2622 array_verify (EV_A_ (W *)checks, checkcnt);
2623#endif
1858 2624
1859# if 0 2625# if 0
2626#if EV_CHILD_ENABLE
1860 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2627 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1861 for (signum = EV_NSIG; signum--; ) if (signals [signum].gotsig) 2628 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2629#endif
1862# endif 2630# endif
1863#endif 2631#endif
1864} 2632}
1865#endif 2633#endif
1866 2634
1867#if EV_MULTIPLICITY 2635#if EV_MULTIPLICITY
1868struct ev_loop * 2636struct ev_loop * ecb_cold
1869ev_default_loop_init (unsigned int flags)
1870#else 2637#else
1871int 2638int
2639#endif
1872ev_default_loop (unsigned int flags) 2640ev_default_loop (unsigned int flags) EV_THROW
1873#endif
1874{ 2641{
1875 if (!ev_default_loop_ptr) 2642 if (!ev_default_loop_ptr)
1876 { 2643 {
1877#if EV_MULTIPLICITY 2644#if EV_MULTIPLICITY
1878 EV_P = ev_default_loop_ptr = &default_loop_struct; 2645 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1882 2649
1883 loop_init (EV_A_ flags); 2650 loop_init (EV_A_ flags);
1884 2651
1885 if (ev_backend (EV_A)) 2652 if (ev_backend (EV_A))
1886 { 2653 {
1887#ifndef _WIN32 2654#if EV_CHILD_ENABLE
1888 ev_signal_init (&childev, childcb, SIGCHLD); 2655 ev_signal_init (&childev, childcb, SIGCHLD);
1889 ev_set_priority (&childev, EV_MAXPRI); 2656 ev_set_priority (&childev, EV_MAXPRI);
1890 ev_signal_start (EV_A_ &childev); 2657 ev_signal_start (EV_A_ &childev);
1891 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2658 ev_unref (EV_A); /* child watcher should not keep loop alive */
1892#endif 2659#endif
… …
1897 2664
1898 return ev_default_loop_ptr; 2665 return ev_default_loop_ptr;
1899} 2666}
1900 2667
1901void 2668void
1902ev_default_destroy (void) 2669ev_loop_fork (EV_P) EV_THROW
1903{ 2670{
1904#if EV_MULTIPLICITY
1905 EV_P = ev_default_loop_ptr;
1906#endif
1907
1908 ev_default_loop_ptr = 0;
1909
1910#ifndef _WIN32
1911 ev_ref (EV_A); /* child watcher */
1912 ev_signal_stop (EV_A_ &childev);
1913#endif
1914
1915 loop_destroy (EV_A);
1916}
1917
1918void
1919ev_default_fork (void)
1920{
1921#if EV_MULTIPLICITY
1922 EV_P = ev_default_loop_ptr;
1923#endif
1924
1925 postfork = 1; /* must be in line with ev_loop_fork */ 2671 postfork = 1; /* must be in line with ev_default_fork */
1926} 2672}
1927 2673
1928/*****************************************************************************/ 2674/*****************************************************************************/
1929 2675
1930void 2676void
… …
1932{ 2678{
1933 EV_CB_INVOKE ((W)w, revents); 2679 EV_CB_INVOKE ((W)w, revents);
1934} 2680}
1935 2681
1936unsigned int 2682unsigned int
1937ev_pending_count (EV_P) 2683ev_pending_count (EV_P) EV_THROW
1938{ 2684{
1939 int pri; 2685 int pri;
1940 unsigned int count = 0; 2686 unsigned int count = 0;
1941 2687
1942 for (pri = NUMPRI; pri--; ) 2688 for (pri = NUMPRI; pri--; )
… …
1946} 2692}
1947 2693
1948void noinline 2694void noinline
1949ev_invoke_pending (EV_P) 2695ev_invoke_pending (EV_P)
1950{ 2696{
1951 int pri; 2697 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1952
1953 for (pri = NUMPRI; pri--; )
1954 while (pendingcnt [pri]) 2698 while (pendingcnt [pendingpri])
1955 { 2699 {
1956 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2700 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1957
1958 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1959 /* ^ this is no longer true, as pending_w could be here */
1960 2701
1961 p->w->pending = 0; 2702 p->w->pending = 0;
1962 EV_CB_INVOKE (p->w, p->events); 2703 EV_CB_INVOKE (p->w, p->events);
1963 EV_FREQUENT_CHECK; 2704 EV_FREQUENT_CHECK;
1964 } 2705 }
… …
2021 EV_FREQUENT_CHECK; 2762 EV_FREQUENT_CHECK;
2022 feed_reverse (EV_A_ (W)w); 2763 feed_reverse (EV_A_ (W)w);
2023 } 2764 }
2024 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2765 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2025 2766
2026 feed_reverse_done (EV_A_ EV_TIMEOUT); 2767 feed_reverse_done (EV_A_ EV_TIMER);
2027 } 2768 }
2028} 2769}
2029 2770
2030#if EV_PERIODIC_ENABLE 2771#if EV_PERIODIC_ENABLE
2772
2773static void noinline
2774periodic_recalc (EV_P_ ev_periodic *w)
2775{
2776 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2777 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2778
2779 /* the above almost always errs on the low side */
2780 while (at <= ev_rt_now)
2781 {
2782 ev_tstamp nat = at + w->interval;
2783
2784 /* when resolution fails us, we use ev_rt_now */
2785 if (expect_false (nat == at))
2786 {
2787 at = ev_rt_now;
2788 break;
2789 }
2790
2791 at = nat;
2792 }
2793
2794 ev_at (w) = at;
2795}
2796
2031/* make periodics pending */ 2797/* make periodics pending */
2032inline_size void 2798inline_size void
2033periodics_reify (EV_P) 2799periodics_reify (EV_P)
2034{ 2800{
2035 EV_FREQUENT_CHECK; 2801 EV_FREQUENT_CHECK;
… …
2054 ANHE_at_cache (periodics [HEAP0]); 2820 ANHE_at_cache (periodics [HEAP0]);
2055 downheap (periodics, periodiccnt, HEAP0); 2821 downheap (periodics, periodiccnt, HEAP0);
2056 } 2822 }
2057 else if (w->interval) 2823 else if (w->interval)
2058 { 2824 {
2059 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2825 periodic_recalc (EV_A_ w);
2060 /* if next trigger time is not sufficiently in the future, put it there */
2061 /* this might happen because of floating point inexactness */
2062 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2063 {
2064 ev_at (w) += w->interval;
2065
2066 /* if interval is unreasonably low we might still have a time in the past */
2067 /* so correct this. this will make the periodic very inexact, but the user */
2068 /* has effectively asked to get triggered more often than possible */
2069 if (ev_at (w) < ev_rt_now)
2070 ev_at (w) = ev_rt_now;
2071 }
2072
2073 ANHE_at_cache (periodics [HEAP0]); 2826 ANHE_at_cache (periodics [HEAP0]);
2074 downheap (periodics, periodiccnt, HEAP0); 2827 downheap (periodics, periodiccnt, HEAP0);
2075 } 2828 }
2076 else 2829 else
2077 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2830 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2084 feed_reverse_done (EV_A_ EV_PERIODIC); 2837 feed_reverse_done (EV_A_ EV_PERIODIC);
2085 } 2838 }
2086} 2839}
2087 2840
2088/* simply recalculate all periodics */ 2841/* simply recalculate all periodics */
2089/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2842/* TODO: maybe ensure that at least one event happens when jumping forward? */
2090static void noinline 2843static void noinline ecb_cold
2091periodics_reschedule (EV_P) 2844periodics_reschedule (EV_P)
2092{ 2845{
2093 int i; 2846 int i;
2094 2847
2095 /* adjust periodics after time jump */ 2848 /* adjust periodics after time jump */
… …
2098 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2851 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2099 2852
2100 if (w->reschedule_cb) 2853 if (w->reschedule_cb)
2101 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2854 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2102 else if (w->interval) 2855 else if (w->interval)
2103 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2856 periodic_recalc (EV_A_ w);
2104 2857
2105 ANHE_at_cache (periodics [i]); 2858 ANHE_at_cache (periodics [i]);
2106 } 2859 }
2107 2860
2108 reheap (periodics, periodiccnt); 2861 reheap (periodics, periodiccnt);
2109} 2862}
2110#endif 2863#endif
2111 2864
2112/* adjust all timers by a given offset */ 2865/* adjust all timers by a given offset */
2113static void noinline 2866static void noinline ecb_cold
2114timers_reschedule (EV_P_ ev_tstamp adjust) 2867timers_reschedule (EV_P_ ev_tstamp adjust)
2115{ 2868{
2116 int i; 2869 int i;
2117 2870
2118 for (i = 0; i < timercnt; ++i) 2871 for (i = 0; i < timercnt; ++i)
… …
2122 ANHE_at_cache (*he); 2875 ANHE_at_cache (*he);
2123 } 2876 }
2124} 2877}
2125 2878
2126/* fetch new monotonic and realtime times from the kernel */ 2879/* fetch new monotonic and realtime times from the kernel */
2127/* also detetc if there was a timejump, and act accordingly */ 2880/* also detect if there was a timejump, and act accordingly */
2128inline_speed void 2881inline_speed void
2129time_update (EV_P_ ev_tstamp max_block) 2882time_update (EV_P_ ev_tstamp max_block)
2130{ 2883{
2131#if EV_USE_MONOTONIC 2884#if EV_USE_MONOTONIC
2132 if (expect_true (have_monotonic)) 2885 if (expect_true (have_monotonic))
… …
2155 * doesn't hurt either as we only do this on time-jumps or 2908 * doesn't hurt either as we only do this on time-jumps or
2156 * in the unlikely event of having been preempted here. 2909 * in the unlikely event of having been preempted here.
2157 */ 2910 */
2158 for (i = 4; --i; ) 2911 for (i = 4; --i; )
2159 { 2912 {
2913 ev_tstamp diff;
2160 rtmn_diff = ev_rt_now - mn_now; 2914 rtmn_diff = ev_rt_now - mn_now;
2161 2915
2916 diff = odiff - rtmn_diff;
2917
2162 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2918 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2163 return; /* all is well */ 2919 return; /* all is well */
2164 2920
2165 ev_rt_now = ev_time (); 2921 ev_rt_now = ev_time ();
2166 mn_now = get_clock (); 2922 mn_now = get_clock ();
2167 now_floor = mn_now; 2923 now_floor = mn_now;
… …
2189 2945
2190 mn_now = ev_rt_now; 2946 mn_now = ev_rt_now;
2191 } 2947 }
2192} 2948}
2193 2949
2194void 2950int
2195ev_loop (EV_P_ int flags) 2951ev_run (EV_P_ int flags)
2196{ 2952{
2197#if EV_MINIMAL < 2 2953#if EV_FEATURE_API
2198 ++loop_depth; 2954 ++loop_depth;
2199#endif 2955#endif
2200 2956
2201 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2957 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2202 2958
2203 loop_done = EVUNLOOP_CANCEL; 2959 loop_done = EVBREAK_CANCEL;
2204 2960
2205 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2961 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2206 2962
2207 do 2963 do
2208 { 2964 {
2209#if EV_VERIFY >= 2 2965#if EV_VERIFY >= 2
2210 ev_loop_verify (EV_A); 2966 ev_verify (EV_A);
2211#endif 2967#endif
2212 2968
2213#ifndef _WIN32 2969#ifndef _WIN32
2214 if (expect_false (curpid)) /* penalise the forking check even more */ 2970 if (expect_false (curpid)) /* penalise the forking check even more */
2215 if (expect_false (getpid () != curpid)) 2971 if (expect_false (getpid () != curpid))
… …
2227 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2983 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2228 EV_INVOKE_PENDING; 2984 EV_INVOKE_PENDING;
2229 } 2985 }
2230#endif 2986#endif
2231 2987
2988#if EV_PREPARE_ENABLE
2232 /* queue prepare watchers (and execute them) */ 2989 /* queue prepare watchers (and execute them) */
2233 if (expect_false (preparecnt)) 2990 if (expect_false (preparecnt))
2234 { 2991 {
2235 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2992 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2236 EV_INVOKE_PENDING; 2993 EV_INVOKE_PENDING;
2237 } 2994 }
2995#endif
2238 2996
2239 if (expect_false (loop_done)) 2997 if (expect_false (loop_done))
2240 break; 2998 break;
2241 2999
2242 /* we might have forked, so reify kernel state if necessary */ 3000 /* we might have forked, so reify kernel state if necessary */
… …
2249 /* calculate blocking time */ 3007 /* calculate blocking time */
2250 { 3008 {
2251 ev_tstamp waittime = 0.; 3009 ev_tstamp waittime = 0.;
2252 ev_tstamp sleeptime = 0.; 3010 ev_tstamp sleeptime = 0.;
2253 3011
3012 /* remember old timestamp for io_blocktime calculation */
3013 ev_tstamp prev_mn_now = mn_now;
3014
3015 /* update time to cancel out callback processing overhead */
3016 time_update (EV_A_ 1e100);
3017
3018 /* from now on, we want a pipe-wake-up */
3019 pipe_write_wanted = 1;
3020
3021 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3022
2254 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3023 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2255 { 3024 {
2256 /* remember old timestamp for io_blocktime calculation */
2257 ev_tstamp prev_mn_now = mn_now;
2258
2259 /* update time to cancel out callback processing overhead */
2260 time_update (EV_A_ 1e100);
2261
2262 waittime = MAX_BLOCKTIME; 3025 waittime = MAX_BLOCKTIME;
2263 3026
2264 if (timercnt) 3027 if (timercnt)
2265 { 3028 {
2266 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3029 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2267 if (waittime > to) waittime = to; 3030 if (waittime > to) waittime = to;
2268 } 3031 }
2269 3032
2270#if EV_PERIODIC_ENABLE 3033#if EV_PERIODIC_ENABLE
2271 if (periodiccnt) 3034 if (periodiccnt)
2272 { 3035 {
2273 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3036 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2274 if (waittime > to) waittime = to; 3037 if (waittime > to) waittime = to;
2275 } 3038 }
2276#endif 3039#endif
2277 3040
2278 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3041 /* don't let timeouts decrease the waittime below timeout_blocktime */
2279 if (expect_false (waittime < timeout_blocktime)) 3042 if (expect_false (waittime < timeout_blocktime))
2280 waittime = timeout_blocktime; 3043 waittime = timeout_blocktime;
3044
3045 /* at this point, we NEED to wait, so we have to ensure */
3046 /* to pass a minimum nonzero value to the backend */
3047 if (expect_false (waittime < backend_mintime))
3048 waittime = backend_mintime;
2281 3049
2282 /* extra check because io_blocktime is commonly 0 */ 3050 /* extra check because io_blocktime is commonly 0 */
2283 if (expect_false (io_blocktime)) 3051 if (expect_false (io_blocktime))
2284 { 3052 {
2285 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3053 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2286 3054
2287 if (sleeptime > waittime - backend_fudge) 3055 if (sleeptime > waittime - backend_mintime)
2288 sleeptime = waittime - backend_fudge; 3056 sleeptime = waittime - backend_mintime;
2289 3057
2290 if (expect_true (sleeptime > 0.)) 3058 if (expect_true (sleeptime > 0.))
2291 { 3059 {
2292 ev_sleep (sleeptime); 3060 ev_sleep (sleeptime);
2293 waittime -= sleeptime; 3061 waittime -= sleeptime;
2294 } 3062 }
2295 } 3063 }
2296 } 3064 }
2297 3065
2298#if EV_MINIMAL < 2 3066#if EV_FEATURE_API
2299 ++loop_count; 3067 ++loop_count;
2300#endif 3068#endif
2301 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3069 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2302 backend_poll (EV_A_ waittime); 3070 backend_poll (EV_A_ waittime);
2303 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3071 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3072
3073 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3074
3075 if (pipe_write_skipped)
3076 {
3077 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3078 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3079 }
3080
2304 3081
2305 /* update ev_rt_now, do magic */ 3082 /* update ev_rt_now, do magic */
2306 time_update (EV_A_ waittime + sleeptime); 3083 time_update (EV_A_ waittime + sleeptime);
2307 } 3084 }
2308 3085
… …
2315#if EV_IDLE_ENABLE 3092#if EV_IDLE_ENABLE
2316 /* queue idle watchers unless other events are pending */ 3093 /* queue idle watchers unless other events are pending */
2317 idle_reify (EV_A); 3094 idle_reify (EV_A);
2318#endif 3095#endif
2319 3096
3097#if EV_CHECK_ENABLE
2320 /* queue check watchers, to be executed first */ 3098 /* queue check watchers, to be executed first */
2321 if (expect_false (checkcnt)) 3099 if (expect_false (checkcnt))
2322 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3100 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3101#endif
2323 3102
2324 EV_INVOKE_PENDING; 3103 EV_INVOKE_PENDING;
2325 } 3104 }
2326 while (expect_true ( 3105 while (expect_true (
2327 activecnt 3106 activecnt
2328 && !loop_done 3107 && !loop_done
2329 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3108 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2330 )); 3109 ));
2331 3110
2332 if (loop_done == EVUNLOOP_ONE) 3111 if (loop_done == EVBREAK_ONE)
2333 loop_done = EVUNLOOP_CANCEL; 3112 loop_done = EVBREAK_CANCEL;
2334 3113
2335#if EV_MINIMAL < 2 3114#if EV_FEATURE_API
2336 --loop_depth; 3115 --loop_depth;
2337#endif 3116#endif
3117
3118 return activecnt;
2338} 3119}
2339 3120
2340void 3121void
2341ev_unloop (EV_P_ int how) 3122ev_break (EV_P_ int how) EV_THROW
2342{ 3123{
2343 loop_done = how; 3124 loop_done = how;
2344} 3125}
2345 3126
2346void 3127void
2347ev_ref (EV_P) 3128ev_ref (EV_P) EV_THROW
2348{ 3129{
2349 ++activecnt; 3130 ++activecnt;
2350} 3131}
2351 3132
2352void 3133void
2353ev_unref (EV_P) 3134ev_unref (EV_P) EV_THROW
2354{ 3135{
2355 --activecnt; 3136 --activecnt;
2356} 3137}
2357 3138
2358void 3139void
2359ev_now_update (EV_P) 3140ev_now_update (EV_P) EV_THROW
2360{ 3141{
2361 time_update (EV_A_ 1e100); 3142 time_update (EV_A_ 1e100);
2362} 3143}
2363 3144
2364void 3145void
2365ev_suspend (EV_P) 3146ev_suspend (EV_P) EV_THROW
2366{ 3147{
2367 ev_now_update (EV_A); 3148 ev_now_update (EV_A);
2368} 3149}
2369 3150
2370void 3151void
2371ev_resume (EV_P) 3152ev_resume (EV_P) EV_THROW
2372{ 3153{
2373 ev_tstamp mn_prev = mn_now; 3154 ev_tstamp mn_prev = mn_now;
2374 3155
2375 ev_now_update (EV_A); 3156 ev_now_update (EV_A);
2376 timers_reschedule (EV_A_ mn_now - mn_prev); 3157 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2393inline_size void 3174inline_size void
2394wlist_del (WL *head, WL elem) 3175wlist_del (WL *head, WL elem)
2395{ 3176{
2396 while (*head) 3177 while (*head)
2397 { 3178 {
2398 if (*head == elem) 3179 if (expect_true (*head == elem))
2399 { 3180 {
2400 *head = elem->next; 3181 *head = elem->next;
2401 return; 3182 break;
2402 } 3183 }
2403 3184
2404 head = &(*head)->next; 3185 head = &(*head)->next;
2405 } 3186 }
2406} 3187}
… …
2415 w->pending = 0; 3196 w->pending = 0;
2416 } 3197 }
2417} 3198}
2418 3199
2419int 3200int
2420ev_clear_pending (EV_P_ void *w) 3201ev_clear_pending (EV_P_ void *w) EV_THROW
2421{ 3202{
2422 W w_ = (W)w; 3203 W w_ = (W)w;
2423 int pending = w_->pending; 3204 int pending = w_->pending;
2424 3205
2425 if (expect_true (pending)) 3206 if (expect_true (pending))
… …
2458} 3239}
2459 3240
2460/*****************************************************************************/ 3241/*****************************************************************************/
2461 3242
2462void noinline 3243void noinline
2463ev_io_start (EV_P_ ev_io *w) 3244ev_io_start (EV_P_ ev_io *w) EV_THROW
2464{ 3245{
2465 int fd = w->fd; 3246 int fd = w->fd;
2466 3247
2467 if (expect_false (ev_is_active (w))) 3248 if (expect_false (ev_is_active (w)))
2468 return; 3249 return;
2469 3250
2470 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3251 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2471 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3252 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2472 3253
2473 EV_FREQUENT_CHECK; 3254 EV_FREQUENT_CHECK;
2474 3255
2475 ev_start (EV_A_ (W)w, 1); 3256 ev_start (EV_A_ (W)w, 1);
2476 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3257 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2477 wlist_add (&anfds[fd].head, (WL)w); 3258 wlist_add (&anfds[fd].head, (WL)w);
2478 3259
3260 /* common bug, apparently */
3261 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3262
2479 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3263 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2480 w->events &= ~EV__IOFDSET; 3264 w->events &= ~EV__IOFDSET;
2481 3265
2482 EV_FREQUENT_CHECK; 3266 EV_FREQUENT_CHECK;
2483} 3267}
2484 3268
2485void noinline 3269void noinline
2486ev_io_stop (EV_P_ ev_io *w) 3270ev_io_stop (EV_P_ ev_io *w) EV_THROW
2487{ 3271{
2488 clear_pending (EV_A_ (W)w); 3272 clear_pending (EV_A_ (W)w);
2489 if (expect_false (!ev_is_active (w))) 3273 if (expect_false (!ev_is_active (w)))
2490 return; 3274 return;
2491 3275
… …
2494 EV_FREQUENT_CHECK; 3278 EV_FREQUENT_CHECK;
2495 3279
2496 wlist_del (&anfds[w->fd].head, (WL)w); 3280 wlist_del (&anfds[w->fd].head, (WL)w);
2497 ev_stop (EV_A_ (W)w); 3281 ev_stop (EV_A_ (W)w);
2498 3282
2499 fd_change (EV_A_ w->fd, 1); 3283 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2500 3284
2501 EV_FREQUENT_CHECK; 3285 EV_FREQUENT_CHECK;
2502} 3286}
2503 3287
2504void noinline 3288void noinline
2505ev_timer_start (EV_P_ ev_timer *w) 3289ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2506{ 3290{
2507 if (expect_false (ev_is_active (w))) 3291 if (expect_false (ev_is_active (w)))
2508 return; 3292 return;
2509 3293
2510 ev_at (w) += mn_now; 3294 ev_at (w) += mn_now;
… …
2524 3308
2525 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3309 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2526} 3310}
2527 3311
2528void noinline 3312void noinline
2529ev_timer_stop (EV_P_ ev_timer *w) 3313ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2530{ 3314{
2531 clear_pending (EV_A_ (W)w); 3315 clear_pending (EV_A_ (W)w);
2532 if (expect_false (!ev_is_active (w))) 3316 if (expect_false (!ev_is_active (w)))
2533 return; 3317 return;
2534 3318
… …
2546 timers [active] = timers [timercnt + HEAP0]; 3330 timers [active] = timers [timercnt + HEAP0];
2547 adjustheap (timers, timercnt, active); 3331 adjustheap (timers, timercnt, active);
2548 } 3332 }
2549 } 3333 }
2550 3334
2551 EV_FREQUENT_CHECK;
2552
2553 ev_at (w) -= mn_now; 3335 ev_at (w) -= mn_now;
2554 3336
2555 ev_stop (EV_A_ (W)w); 3337 ev_stop (EV_A_ (W)w);
3338
3339 EV_FREQUENT_CHECK;
2556} 3340}
2557 3341
2558void noinline 3342void noinline
2559ev_timer_again (EV_P_ ev_timer *w) 3343ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2560{ 3344{
2561 EV_FREQUENT_CHECK; 3345 EV_FREQUENT_CHECK;
3346
3347 clear_pending (EV_A_ (W)w);
2562 3348
2563 if (ev_is_active (w)) 3349 if (ev_is_active (w))
2564 { 3350 {
2565 if (w->repeat) 3351 if (w->repeat)
2566 { 3352 {
… …
2579 3365
2580 EV_FREQUENT_CHECK; 3366 EV_FREQUENT_CHECK;
2581} 3367}
2582 3368
2583ev_tstamp 3369ev_tstamp
2584ev_timer_remaining (EV_P_ ev_timer *w) 3370ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2585{ 3371{
2586 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3372 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2587} 3373}
2588 3374
2589#if EV_PERIODIC_ENABLE 3375#if EV_PERIODIC_ENABLE
2590void noinline 3376void noinline
2591ev_periodic_start (EV_P_ ev_periodic *w) 3377ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2592{ 3378{
2593 if (expect_false (ev_is_active (w))) 3379 if (expect_false (ev_is_active (w)))
2594 return; 3380 return;
2595 3381
2596 if (w->reschedule_cb) 3382 if (w->reschedule_cb)
2597 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3383 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2598 else if (w->interval) 3384 else if (w->interval)
2599 { 3385 {
2600 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3386 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2601 /* this formula differs from the one in periodic_reify because we do not always round up */ 3387 periodic_recalc (EV_A_ w);
2602 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2603 } 3388 }
2604 else 3389 else
2605 ev_at (w) = w->offset; 3390 ev_at (w) = w->offset;
2606 3391
2607 EV_FREQUENT_CHECK; 3392 EV_FREQUENT_CHECK;
… …
2617 3402
2618 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3403 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2619} 3404}
2620 3405
2621void noinline 3406void noinline
2622ev_periodic_stop (EV_P_ ev_periodic *w) 3407ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2623{ 3408{
2624 clear_pending (EV_A_ (W)w); 3409 clear_pending (EV_A_ (W)w);
2625 if (expect_false (!ev_is_active (w))) 3410 if (expect_false (!ev_is_active (w)))
2626 return; 3411 return;
2627 3412
… …
2639 periodics [active] = periodics [periodiccnt + HEAP0]; 3424 periodics [active] = periodics [periodiccnt + HEAP0];
2640 adjustheap (periodics, periodiccnt, active); 3425 adjustheap (periodics, periodiccnt, active);
2641 } 3426 }
2642 } 3427 }
2643 3428
2644 EV_FREQUENT_CHECK;
2645
2646 ev_stop (EV_A_ (W)w); 3429 ev_stop (EV_A_ (W)w);
3430
3431 EV_FREQUENT_CHECK;
2647} 3432}
2648 3433
2649void noinline 3434void noinline
2650ev_periodic_again (EV_P_ ev_periodic *w) 3435ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2651{ 3436{
2652 /* TODO: use adjustheap and recalculation */ 3437 /* TODO: use adjustheap and recalculation */
2653 ev_periodic_stop (EV_A_ w); 3438 ev_periodic_stop (EV_A_ w);
2654 ev_periodic_start (EV_A_ w); 3439 ev_periodic_start (EV_A_ w);
2655} 3440}
… …
2657 3442
2658#ifndef SA_RESTART 3443#ifndef SA_RESTART
2659# define SA_RESTART 0 3444# define SA_RESTART 0
2660#endif 3445#endif
2661 3446
3447#if EV_SIGNAL_ENABLE
3448
2662void noinline 3449void noinline
2663ev_signal_start (EV_P_ ev_signal *w) 3450ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2664{ 3451{
2665 if (expect_false (ev_is_active (w))) 3452 if (expect_false (ev_is_active (w)))
2666 return; 3453 return;
2667 3454
2668 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3455 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2669 3456
2670#if EV_MULTIPLICITY 3457#if EV_MULTIPLICITY
2671 assert (("libev: tried to attach to a signal from two different loops", 3458 assert (("libev: a signal must not be attached to two different loops",
2672 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3459 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2673 3460
2674 signals [w->signum - 1].loop = EV_A; 3461 signals [w->signum - 1].loop = EV_A;
2675#endif 3462#endif
2676 3463
… …
2712 if (!((WL)w)->next) 3499 if (!((WL)w)->next)
2713# if EV_USE_SIGNALFD 3500# if EV_USE_SIGNALFD
2714 if (sigfd < 0) /*TODO*/ 3501 if (sigfd < 0) /*TODO*/
2715# endif 3502# endif
2716 { 3503 {
2717# if _WIN32 3504# ifdef _WIN32
3505 evpipe_init (EV_A);
3506
2718 signal (w->signum, ev_sighandler); 3507 signal (w->signum, ev_sighandler);
2719# else 3508# else
2720 struct sigaction sa; 3509 struct sigaction sa;
2721 3510
2722 evpipe_init (EV_A); 3511 evpipe_init (EV_A);
… …
2724 sa.sa_handler = ev_sighandler; 3513 sa.sa_handler = ev_sighandler;
2725 sigfillset (&sa.sa_mask); 3514 sigfillset (&sa.sa_mask);
2726 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3515 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2727 sigaction (w->signum, &sa, 0); 3516 sigaction (w->signum, &sa, 0);
2728 3517
3518 if (origflags & EVFLAG_NOSIGMASK)
3519 {
2729 sigemptyset (&sa.sa_mask); 3520 sigemptyset (&sa.sa_mask);
2730 sigaddset (&sa.sa_mask, w->signum); 3521 sigaddset (&sa.sa_mask, w->signum);
2731 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3522 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3523 }
2732#endif 3524#endif
2733 } 3525 }
2734 3526
2735 EV_FREQUENT_CHECK; 3527 EV_FREQUENT_CHECK;
2736} 3528}
2737 3529
2738void noinline 3530void noinline
2739ev_signal_stop (EV_P_ ev_signal *w) 3531ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2740{ 3532{
2741 clear_pending (EV_A_ (W)w); 3533 clear_pending (EV_A_ (W)w);
2742 if (expect_false (!ev_is_active (w))) 3534 if (expect_false (!ev_is_active (w)))
2743 return; 3535 return;
2744 3536
… …
2747 wlist_del (&signals [w->signum - 1].head, (WL)w); 3539 wlist_del (&signals [w->signum - 1].head, (WL)w);
2748 ev_stop (EV_A_ (W)w); 3540 ev_stop (EV_A_ (W)w);
2749 3541
2750 if (!signals [w->signum - 1].head) 3542 if (!signals [w->signum - 1].head)
2751 { 3543 {
2752 #if EV_MULTIPLICITY 3544#if EV_MULTIPLICITY
2753 signals [w->signum - 1].loop = 0; /* unattach from signal */ 3545 signals [w->signum - 1].loop = 0; /* unattach from signal */
2754 #endif 3546#endif
2755 #if EV_USE_SIGNALFD 3547#if EV_USE_SIGNALFD
2756 if (sigfd >= 0) 3548 if (sigfd >= 0)
2757 { 3549 {
2758 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3550 sigset_t ss;
3551
3552 sigemptyset (&ss);
3553 sigaddset (&ss, w->signum);
2759 sigdelset (&sigfd_set, w->signum); 3554 sigdelset (&sigfd_set, w->signum);
3555
2760 signalfd (sigfd, &sigfd_set, 0); 3556 signalfd (sigfd, &sigfd_set, 0);
2761 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3557 sigprocmask (SIG_UNBLOCK, &ss, 0);
2762 /*TODO: maybe unblock signal? */
2763 } 3558 }
2764 else 3559 else
2765 #endif 3560#endif
2766 signal (w->signum, SIG_DFL); 3561 signal (w->signum, SIG_DFL);
2767 } 3562 }
2768 3563
2769 EV_FREQUENT_CHECK; 3564 EV_FREQUENT_CHECK;
2770} 3565}
2771 3566
3567#endif
3568
3569#if EV_CHILD_ENABLE
3570
2772void 3571void
2773ev_child_start (EV_P_ ev_child *w) 3572ev_child_start (EV_P_ ev_child *w) EV_THROW
2774{ 3573{
2775#if EV_MULTIPLICITY 3574#if EV_MULTIPLICITY
2776 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3575 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2777#endif 3576#endif
2778 if (expect_false (ev_is_active (w))) 3577 if (expect_false (ev_is_active (w)))
2779 return; 3578 return;
2780 3579
2781 EV_FREQUENT_CHECK; 3580 EV_FREQUENT_CHECK;
2782 3581
2783 ev_start (EV_A_ (W)w, 1); 3582 ev_start (EV_A_ (W)w, 1);
2784 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3583 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2785 3584
2786 EV_FREQUENT_CHECK; 3585 EV_FREQUENT_CHECK;
2787} 3586}
2788 3587
2789void 3588void
2790ev_child_stop (EV_P_ ev_child *w) 3589ev_child_stop (EV_P_ ev_child *w) EV_THROW
2791{ 3590{
2792 clear_pending (EV_A_ (W)w); 3591 clear_pending (EV_A_ (W)w);
2793 if (expect_false (!ev_is_active (w))) 3592 if (expect_false (!ev_is_active (w)))
2794 return; 3593 return;
2795 3594
2796 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
2797 3596
2798 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3597 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2799 ev_stop (EV_A_ (W)w); 3598 ev_stop (EV_A_ (W)w);
2800 3599
2801 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
2802} 3601}
3602
3603#endif
2803 3604
2804#if EV_STAT_ENABLE 3605#if EV_STAT_ENABLE
2805 3606
2806# ifdef _WIN32 3607# ifdef _WIN32
2807# undef lstat 3608# undef lstat
… …
2813#define MIN_STAT_INTERVAL 0.1074891 3614#define MIN_STAT_INTERVAL 0.1074891
2814 3615
2815static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3616static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2816 3617
2817#if EV_USE_INOTIFY 3618#if EV_USE_INOTIFY
2818# define EV_INOTIFY_BUFSIZE 8192 3619
3620/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3621# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2819 3622
2820static void noinline 3623static void noinline
2821infy_add (EV_P_ ev_stat *w) 3624infy_add (EV_P_ ev_stat *w)
2822{ 3625{
2823 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); 3626 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);
2824 3627
2825 if (w->wd < 0) 3628 if (w->wd >= 0)
3629 {
3630 struct statfs sfs;
3631
3632 /* now local changes will be tracked by inotify, but remote changes won't */
3633 /* unless the filesystem is known to be local, we therefore still poll */
3634 /* also do poll on <2.6.25, but with normal frequency */
3635
3636 if (!fs_2625)
3637 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3638 else if (!statfs (w->path, &sfs)
3639 && (sfs.f_type == 0x1373 /* devfs */
3640 || sfs.f_type == 0xEF53 /* ext2/3 */
3641 || sfs.f_type == 0x3153464a /* jfs */
3642 || sfs.f_type == 0x52654973 /* reiser3 */
3643 || sfs.f_type == 0x01021994 /* tempfs */
3644 || sfs.f_type == 0x58465342 /* xfs */))
3645 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3646 else
3647 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2826 { 3648 }
3649 else
3650 {
3651 /* can't use inotify, continue to stat */
2827 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3652 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2828 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2829 3653
2830 /* monitor some parent directory for speedup hints */ 3654 /* if path is not there, monitor some parent directory for speedup hints */
2831 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3655 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2832 /* but an efficiency issue only */ 3656 /* but an efficiency issue only */
2833 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3657 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2834 { 3658 {
2835 char path [4096]; 3659 char path [4096];
… …
2845 if (!pend || pend == path) 3669 if (!pend || pend == path)
2846 break; 3670 break;
2847 3671
2848 *pend = 0; 3672 *pend = 0;
2849 w->wd = inotify_add_watch (fs_fd, path, mask); 3673 w->wd = inotify_add_watch (fs_fd, path, mask);
2850 } 3674 }
2851 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3675 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2852 } 3676 }
2853 } 3677 }
2854 3678
2855 if (w->wd >= 0) 3679 if (w->wd >= 0)
2856 {
2857 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3680 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2858 3681
2859 /* now local changes will be tracked by inotify, but remote changes won't */ 3682 /* now re-arm timer, if required */
2860 /* unless the filesystem it known to be local, we therefore still poll */ 3683 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2861 /* also do poll on <2.6.25, but with normal frequency */
2862 struct statfs sfs;
2863
2864 if (fs_2625 && !statfs (w->path, &sfs))
2865 if (sfs.f_type == 0x1373 /* devfs */
2866 || sfs.f_type == 0xEF53 /* ext2/3 */
2867 || sfs.f_type == 0x3153464a /* jfs */
2868 || sfs.f_type == 0x52654973 /* reiser3 */
2869 || sfs.f_type == 0x01021994 /* tempfs */
2870 || sfs.f_type == 0x58465342 /* xfs */)
2871 return;
2872
2873 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2874 ev_timer_again (EV_A_ &w->timer); 3684 ev_timer_again (EV_A_ &w->timer);
2875 } 3685 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2876} 3686}
2877 3687
2878static void noinline 3688static void noinline
2879infy_del (EV_P_ ev_stat *w) 3689infy_del (EV_P_ ev_stat *w)
2880{ 3690{
… …
2883 3693
2884 if (wd < 0) 3694 if (wd < 0)
2885 return; 3695 return;
2886 3696
2887 w->wd = -2; 3697 w->wd = -2;
2888 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3698 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2889 wlist_del (&fs_hash [slot].head, (WL)w); 3699 wlist_del (&fs_hash [slot].head, (WL)w);
2890 3700
2891 /* remove this watcher, if others are watching it, they will rearm */ 3701 /* remove this watcher, if others are watching it, they will rearm */
2892 inotify_rm_watch (fs_fd, wd); 3702 inotify_rm_watch (fs_fd, wd);
2893} 3703}
… …
2895static void noinline 3705static void noinline
2896infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3706infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2897{ 3707{
2898 if (slot < 0) 3708 if (slot < 0)
2899 /* overflow, need to check for all hash slots */ 3709 /* overflow, need to check for all hash slots */
2900 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3710 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2901 infy_wd (EV_A_ slot, wd, ev); 3711 infy_wd (EV_A_ slot, wd, ev);
2902 else 3712 else
2903 { 3713 {
2904 WL w_; 3714 WL w_;
2905 3715
2906 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3716 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2907 { 3717 {
2908 ev_stat *w = (ev_stat *)w_; 3718 ev_stat *w = (ev_stat *)w_;
2909 w_ = w_->next; /* lets us remove this watcher and all before it */ 3719 w_ = w_->next; /* lets us remove this watcher and all before it */
2910 3720
2911 if (w->wd == wd || wd == -1) 3721 if (w->wd == wd || wd == -1)
2912 { 3722 {
2913 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3723 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2914 { 3724 {
2915 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3725 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2916 w->wd = -1; 3726 w->wd = -1;
2917 infy_add (EV_A_ w); /* re-add, no matter what */ 3727 infy_add (EV_A_ w); /* re-add, no matter what */
2918 } 3728 }
2919 3729
2920 stat_timer_cb (EV_A_ &w->timer, 0); 3730 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2925 3735
2926static void 3736static void
2927infy_cb (EV_P_ ev_io *w, int revents) 3737infy_cb (EV_P_ ev_io *w, int revents)
2928{ 3738{
2929 char buf [EV_INOTIFY_BUFSIZE]; 3739 char buf [EV_INOTIFY_BUFSIZE];
2930 struct inotify_event *ev = (struct inotify_event *)buf;
2931 int ofs; 3740 int ofs;
2932 int len = read (fs_fd, buf, sizeof (buf)); 3741 int len = read (fs_fd, buf, sizeof (buf));
2933 3742
2934 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3743 for (ofs = 0; ofs < len; )
3744 {
3745 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2935 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3746 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3747 ofs += sizeof (struct inotify_event) + ev->len;
3748 }
2936} 3749}
2937 3750
2938inline_size void 3751inline_size void ecb_cold
2939check_2625 (EV_P) 3752ev_check_2625 (EV_P)
2940{ 3753{
2941 /* kernels < 2.6.25 are borked 3754 /* kernels < 2.6.25 are borked
2942 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3755 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2943 */ 3756 */
2944 struct utsname buf; 3757 if (ev_linux_version () < 0x020619)
2945 int major, minor, micro;
2946
2947 if (uname (&buf))
2948 return; 3758 return;
2949 3759
2950 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2951 return;
2952
2953 if (major < 2
2954 || (major == 2 && minor < 6)
2955 || (major == 2 && minor == 6 && micro < 25))
2956 return;
2957
2958 fs_2625 = 1; 3760 fs_2625 = 1;
3761}
3762
3763inline_size int
3764infy_newfd (void)
3765{
3766#if defined IN_CLOEXEC && defined IN_NONBLOCK
3767 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3768 if (fd >= 0)
3769 return fd;
3770#endif
3771 return inotify_init ();
2959} 3772}
2960 3773
2961inline_size void 3774inline_size void
2962infy_init (EV_P) 3775infy_init (EV_P)
2963{ 3776{
2964 if (fs_fd != -2) 3777 if (fs_fd != -2)
2965 return; 3778 return;
2966 3779
2967 fs_fd = -1; 3780 fs_fd = -1;
2968 3781
2969 check_2625 (EV_A); 3782 ev_check_2625 (EV_A);
2970 3783
2971 fs_fd = inotify_init (); 3784 fs_fd = infy_newfd ();
2972 3785
2973 if (fs_fd >= 0) 3786 if (fs_fd >= 0)
2974 { 3787 {
3788 fd_intern (fs_fd);
2975 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3789 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2976 ev_set_priority (&fs_w, EV_MAXPRI); 3790 ev_set_priority (&fs_w, EV_MAXPRI);
2977 ev_io_start (EV_A_ &fs_w); 3791 ev_io_start (EV_A_ &fs_w);
3792 ev_unref (EV_A);
2978 } 3793 }
2979} 3794}
2980 3795
2981inline_size void 3796inline_size void
2982infy_fork (EV_P) 3797infy_fork (EV_P)
… …
2984 int slot; 3799 int slot;
2985 3800
2986 if (fs_fd < 0) 3801 if (fs_fd < 0)
2987 return; 3802 return;
2988 3803
3804 ev_ref (EV_A);
3805 ev_io_stop (EV_A_ &fs_w);
2989 close (fs_fd); 3806 close (fs_fd);
2990 fs_fd = inotify_init (); 3807 fs_fd = infy_newfd ();
2991 3808
3809 if (fs_fd >= 0)
3810 {
3811 fd_intern (fs_fd);
3812 ev_io_set (&fs_w, fs_fd, EV_READ);
3813 ev_io_start (EV_A_ &fs_w);
3814 ev_unref (EV_A);
3815 }
3816
2992 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3817 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2993 { 3818 {
2994 WL w_ = fs_hash [slot].head; 3819 WL w_ = fs_hash [slot].head;
2995 fs_hash [slot].head = 0; 3820 fs_hash [slot].head = 0;
2996 3821
2997 while (w_) 3822 while (w_)
… …
3002 w->wd = -1; 3827 w->wd = -1;
3003 3828
3004 if (fs_fd >= 0) 3829 if (fs_fd >= 0)
3005 infy_add (EV_A_ w); /* re-add, no matter what */ 3830 infy_add (EV_A_ w); /* re-add, no matter what */
3006 else 3831 else
3832 {
3833 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3834 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3007 ev_timer_again (EV_A_ &w->timer); 3835 ev_timer_again (EV_A_ &w->timer);
3836 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3837 }
3008 } 3838 }
3009 } 3839 }
3010} 3840}
3011 3841
3012#endif 3842#endif
… …
3016#else 3846#else
3017# define EV_LSTAT(p,b) lstat (p, b) 3847# define EV_LSTAT(p,b) lstat (p, b)
3018#endif 3848#endif
3019 3849
3020void 3850void
3021ev_stat_stat (EV_P_ ev_stat *w) 3851ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3022{ 3852{
3023 if (lstat (w->path, &w->attr) < 0) 3853 if (lstat (w->path, &w->attr) < 0)
3024 w->attr.st_nlink = 0; 3854 w->attr.st_nlink = 0;
3025 else if (!w->attr.st_nlink) 3855 else if (!w->attr.st_nlink)
3026 w->attr.st_nlink = 1; 3856 w->attr.st_nlink = 1;
… …
3029static void noinline 3859static void noinline
3030stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3860stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3031{ 3861{
3032 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3862 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3033 3863
3034 /* we copy this here each the time so that */ 3864 ev_statdata prev = w->attr;
3035 /* prev has the old value when the callback gets invoked */
3036 w->prev = w->attr;
3037 ev_stat_stat (EV_A_ w); 3865 ev_stat_stat (EV_A_ w);
3038 3866
3039 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3867 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3040 if ( 3868 if (
3041 w->prev.st_dev != w->attr.st_dev 3869 prev.st_dev != w->attr.st_dev
3042 || w->prev.st_ino != w->attr.st_ino 3870 || prev.st_ino != w->attr.st_ino
3043 || w->prev.st_mode != w->attr.st_mode 3871 || prev.st_mode != w->attr.st_mode
3044 || w->prev.st_nlink != w->attr.st_nlink 3872 || prev.st_nlink != w->attr.st_nlink
3045 || w->prev.st_uid != w->attr.st_uid 3873 || prev.st_uid != w->attr.st_uid
3046 || w->prev.st_gid != w->attr.st_gid 3874 || prev.st_gid != w->attr.st_gid
3047 || w->prev.st_rdev != w->attr.st_rdev 3875 || prev.st_rdev != w->attr.st_rdev
3048 || w->prev.st_size != w->attr.st_size 3876 || prev.st_size != w->attr.st_size
3049 || w->prev.st_atime != w->attr.st_atime 3877 || prev.st_atime != w->attr.st_atime
3050 || w->prev.st_mtime != w->attr.st_mtime 3878 || prev.st_mtime != w->attr.st_mtime
3051 || w->prev.st_ctime != w->attr.st_ctime 3879 || prev.st_ctime != w->attr.st_ctime
3052 ) { 3880 ) {
3881 /* we only update w->prev on actual differences */
3882 /* in case we test more often than invoke the callback, */
3883 /* to ensure that prev is always different to attr */
3884 w->prev = prev;
3885
3053 #if EV_USE_INOTIFY 3886 #if EV_USE_INOTIFY
3054 if (fs_fd >= 0) 3887 if (fs_fd >= 0)
3055 { 3888 {
3056 infy_del (EV_A_ w); 3889 infy_del (EV_A_ w);
3057 infy_add (EV_A_ w); 3890 infy_add (EV_A_ w);
… …
3062 ev_feed_event (EV_A_ w, EV_STAT); 3895 ev_feed_event (EV_A_ w, EV_STAT);
3063 } 3896 }
3064} 3897}
3065 3898
3066void 3899void
3067ev_stat_start (EV_P_ ev_stat *w) 3900ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3068{ 3901{
3069 if (expect_false (ev_is_active (w))) 3902 if (expect_false (ev_is_active (w)))
3070 return; 3903 return;
3071 3904
3072 ev_stat_stat (EV_A_ w); 3905 ev_stat_stat (EV_A_ w);
… …
3082 3915
3083 if (fs_fd >= 0) 3916 if (fs_fd >= 0)
3084 infy_add (EV_A_ w); 3917 infy_add (EV_A_ w);
3085 else 3918 else
3086#endif 3919#endif
3920 {
3087 ev_timer_again (EV_A_ &w->timer); 3921 ev_timer_again (EV_A_ &w->timer);
3922 ev_unref (EV_A);
3923 }
3088 3924
3089 ev_start (EV_A_ (W)w, 1); 3925 ev_start (EV_A_ (W)w, 1);
3090 3926
3091 EV_FREQUENT_CHECK; 3927 EV_FREQUENT_CHECK;
3092} 3928}
3093 3929
3094void 3930void
3095ev_stat_stop (EV_P_ ev_stat *w) 3931ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3096{ 3932{
3097 clear_pending (EV_A_ (W)w); 3933 clear_pending (EV_A_ (W)w);
3098 if (expect_false (!ev_is_active (w))) 3934 if (expect_false (!ev_is_active (w)))
3099 return; 3935 return;
3100 3936
3101 EV_FREQUENT_CHECK; 3937 EV_FREQUENT_CHECK;
3102 3938
3103#if EV_USE_INOTIFY 3939#if EV_USE_INOTIFY
3104 infy_del (EV_A_ w); 3940 infy_del (EV_A_ w);
3105#endif 3941#endif
3942
3943 if (ev_is_active (&w->timer))
3944 {
3945 ev_ref (EV_A);
3106 ev_timer_stop (EV_A_ &w->timer); 3946 ev_timer_stop (EV_A_ &w->timer);
3947 }
3107 3948
3108 ev_stop (EV_A_ (W)w); 3949 ev_stop (EV_A_ (W)w);
3109 3950
3110 EV_FREQUENT_CHECK; 3951 EV_FREQUENT_CHECK;
3111} 3952}
3112#endif 3953#endif
3113 3954
3114#if EV_IDLE_ENABLE 3955#if EV_IDLE_ENABLE
3115void 3956void
3116ev_idle_start (EV_P_ ev_idle *w) 3957ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3117{ 3958{
3118 if (expect_false (ev_is_active (w))) 3959 if (expect_false (ev_is_active (w)))
3119 return; 3960 return;
3120 3961
3121 pri_adjust (EV_A_ (W)w); 3962 pri_adjust (EV_A_ (W)w);
… …
3134 3975
3135 EV_FREQUENT_CHECK; 3976 EV_FREQUENT_CHECK;
3136} 3977}
3137 3978
3138void 3979void
3139ev_idle_stop (EV_P_ ev_idle *w) 3980ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3140{ 3981{
3141 clear_pending (EV_A_ (W)w); 3982 clear_pending (EV_A_ (W)w);
3142 if (expect_false (!ev_is_active (w))) 3983 if (expect_false (!ev_is_active (w)))
3143 return; 3984 return;
3144 3985
… …
3156 3997
3157 EV_FREQUENT_CHECK; 3998 EV_FREQUENT_CHECK;
3158} 3999}
3159#endif 4000#endif
3160 4001
4002#if EV_PREPARE_ENABLE
3161void 4003void
3162ev_prepare_start (EV_P_ ev_prepare *w) 4004ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3163{ 4005{
3164 if (expect_false (ev_is_active (w))) 4006 if (expect_false (ev_is_active (w)))
3165 return; 4007 return;
3166 4008
3167 EV_FREQUENT_CHECK; 4009 EV_FREQUENT_CHECK;
… …
3172 4014
3173 EV_FREQUENT_CHECK; 4015 EV_FREQUENT_CHECK;
3174} 4016}
3175 4017
3176void 4018void
3177ev_prepare_stop (EV_P_ ev_prepare *w) 4019ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3178{ 4020{
3179 clear_pending (EV_A_ (W)w); 4021 clear_pending (EV_A_ (W)w);
3180 if (expect_false (!ev_is_active (w))) 4022 if (expect_false (!ev_is_active (w)))
3181 return; 4023 return;
3182 4024
… …
3191 4033
3192 ev_stop (EV_A_ (W)w); 4034 ev_stop (EV_A_ (W)w);
3193 4035
3194 EV_FREQUENT_CHECK; 4036 EV_FREQUENT_CHECK;
3195} 4037}
4038#endif
3196 4039
4040#if EV_CHECK_ENABLE
3197void 4041void
3198ev_check_start (EV_P_ ev_check *w) 4042ev_check_start (EV_P_ ev_check *w) EV_THROW
3199{ 4043{
3200 if (expect_false (ev_is_active (w))) 4044 if (expect_false (ev_is_active (w)))
3201 return; 4045 return;
3202 4046
3203 EV_FREQUENT_CHECK; 4047 EV_FREQUENT_CHECK;
… …
3208 4052
3209 EV_FREQUENT_CHECK; 4053 EV_FREQUENT_CHECK;
3210} 4054}
3211 4055
3212void 4056void
3213ev_check_stop (EV_P_ ev_check *w) 4057ev_check_stop (EV_P_ ev_check *w) EV_THROW
3214{ 4058{
3215 clear_pending (EV_A_ (W)w); 4059 clear_pending (EV_A_ (W)w);
3216 if (expect_false (!ev_is_active (w))) 4060 if (expect_false (!ev_is_active (w)))
3217 return; 4061 return;
3218 4062
… …
3227 4071
3228 ev_stop (EV_A_ (W)w); 4072 ev_stop (EV_A_ (W)w);
3229 4073
3230 EV_FREQUENT_CHECK; 4074 EV_FREQUENT_CHECK;
3231} 4075}
4076#endif
3232 4077
3233#if EV_EMBED_ENABLE 4078#if EV_EMBED_ENABLE
3234void noinline 4079void noinline
3235ev_embed_sweep (EV_P_ ev_embed *w) 4080ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3236{ 4081{
3237 ev_loop (w->other, EVLOOP_NONBLOCK); 4082 ev_run (w->other, EVRUN_NOWAIT);
3238} 4083}
3239 4084
3240static void 4085static void
3241embed_io_cb (EV_P_ ev_io *io, int revents) 4086embed_io_cb (EV_P_ ev_io *io, int revents)
3242{ 4087{
3243 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4088 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3244 4089
3245 if (ev_cb (w)) 4090 if (ev_cb (w))
3246 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4091 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3247 else 4092 else
3248 ev_loop (w->other, EVLOOP_NONBLOCK); 4093 ev_run (w->other, EVRUN_NOWAIT);
3249} 4094}
3250 4095
3251static void 4096static void
3252embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4097embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3253{ 4098{
… …
3257 EV_P = w->other; 4102 EV_P = w->other;
3258 4103
3259 while (fdchangecnt) 4104 while (fdchangecnt)
3260 { 4105 {
3261 fd_reify (EV_A); 4106 fd_reify (EV_A);
3262 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4107 ev_run (EV_A_ EVRUN_NOWAIT);
3263 } 4108 }
3264 } 4109 }
3265} 4110}
3266 4111
3267static void 4112static void
… …
3273 4118
3274 { 4119 {
3275 EV_P = w->other; 4120 EV_P = w->other;
3276 4121
3277 ev_loop_fork (EV_A); 4122 ev_loop_fork (EV_A);
3278 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4123 ev_run (EV_A_ EVRUN_NOWAIT);
3279 } 4124 }
3280 4125
3281 ev_embed_start (EV_A_ w); 4126 ev_embed_start (EV_A_ w);
3282} 4127}
3283 4128
… …
3288 ev_idle_stop (EV_A_ idle); 4133 ev_idle_stop (EV_A_ idle);
3289} 4134}
3290#endif 4135#endif
3291 4136
3292void 4137void
3293ev_embed_start (EV_P_ ev_embed *w) 4138ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3294{ 4139{
3295 if (expect_false (ev_is_active (w))) 4140 if (expect_false (ev_is_active (w)))
3296 return; 4141 return;
3297 4142
3298 { 4143 {
… …
3319 4164
3320 EV_FREQUENT_CHECK; 4165 EV_FREQUENT_CHECK;
3321} 4166}
3322 4167
3323void 4168void
3324ev_embed_stop (EV_P_ ev_embed *w) 4169ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3325{ 4170{
3326 clear_pending (EV_A_ (W)w); 4171 clear_pending (EV_A_ (W)w);
3327 if (expect_false (!ev_is_active (w))) 4172 if (expect_false (!ev_is_active (w)))
3328 return; 4173 return;
3329 4174
… …
3331 4176
3332 ev_io_stop (EV_A_ &w->io); 4177 ev_io_stop (EV_A_ &w->io);
3333 ev_prepare_stop (EV_A_ &w->prepare); 4178 ev_prepare_stop (EV_A_ &w->prepare);
3334 ev_fork_stop (EV_A_ &w->fork); 4179 ev_fork_stop (EV_A_ &w->fork);
3335 4180
4181 ev_stop (EV_A_ (W)w);
4182
3336 EV_FREQUENT_CHECK; 4183 EV_FREQUENT_CHECK;
3337} 4184}
3338#endif 4185#endif
3339 4186
3340#if EV_FORK_ENABLE 4187#if EV_FORK_ENABLE
3341void 4188void
3342ev_fork_start (EV_P_ ev_fork *w) 4189ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3343{ 4190{
3344 if (expect_false (ev_is_active (w))) 4191 if (expect_false (ev_is_active (w)))
3345 return; 4192 return;
3346 4193
3347 EV_FREQUENT_CHECK; 4194 EV_FREQUENT_CHECK;
… …
3352 4199
3353 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3354} 4201}
3355 4202
3356void 4203void
3357ev_fork_stop (EV_P_ ev_fork *w) 4204ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3358{ 4205{
3359 clear_pending (EV_A_ (W)w); 4206 clear_pending (EV_A_ (W)w);
3360 if (expect_false (!ev_is_active (w))) 4207 if (expect_false (!ev_is_active (w)))
3361 return; 4208 return;
3362 4209
… …
3373 4220
3374 EV_FREQUENT_CHECK; 4221 EV_FREQUENT_CHECK;
3375} 4222}
3376#endif 4223#endif
3377 4224
4225#if EV_CLEANUP_ENABLE
4226void
4227ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4228{
4229 if (expect_false (ev_is_active (w)))
4230 return;
4231
4232 EV_FREQUENT_CHECK;
4233
4234 ev_start (EV_A_ (W)w, ++cleanupcnt);
4235 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4236 cleanups [cleanupcnt - 1] = w;
4237
4238 /* cleanup watchers should never keep a refcount on the loop */
4239 ev_unref (EV_A);
4240 EV_FREQUENT_CHECK;
4241}
4242
4243void
4244ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4245{
4246 clear_pending (EV_A_ (W)w);
4247 if (expect_false (!ev_is_active (w)))
4248 return;
4249
4250 EV_FREQUENT_CHECK;
4251 ev_ref (EV_A);
4252
4253 {
4254 int active = ev_active (w);
4255
4256 cleanups [active - 1] = cleanups [--cleanupcnt];
4257 ev_active (cleanups [active - 1]) = active;
4258 }
4259
4260 ev_stop (EV_A_ (W)w);
4261
4262 EV_FREQUENT_CHECK;
4263}
4264#endif
4265
3378#if EV_ASYNC_ENABLE 4266#if EV_ASYNC_ENABLE
3379void 4267void
3380ev_async_start (EV_P_ ev_async *w) 4268ev_async_start (EV_P_ ev_async *w) EV_THROW
3381{ 4269{
3382 if (expect_false (ev_is_active (w))) 4270 if (expect_false (ev_is_active (w)))
3383 return; 4271 return;
4272
4273 w->sent = 0;
3384 4274
3385 evpipe_init (EV_A); 4275 evpipe_init (EV_A);
3386 4276
3387 EV_FREQUENT_CHECK; 4277 EV_FREQUENT_CHECK;
3388 4278
… …
3392 4282
3393 EV_FREQUENT_CHECK; 4283 EV_FREQUENT_CHECK;
3394} 4284}
3395 4285
3396void 4286void
3397ev_async_stop (EV_P_ ev_async *w) 4287ev_async_stop (EV_P_ ev_async *w) EV_THROW
3398{ 4288{
3399 clear_pending (EV_A_ (W)w); 4289 clear_pending (EV_A_ (W)w);
3400 if (expect_false (!ev_is_active (w))) 4290 if (expect_false (!ev_is_active (w)))
3401 return; 4291 return;
3402 4292
… …
3413 4303
3414 EV_FREQUENT_CHECK; 4304 EV_FREQUENT_CHECK;
3415} 4305}
3416 4306
3417void 4307void
3418ev_async_send (EV_P_ ev_async *w) 4308ev_async_send (EV_P_ ev_async *w) EV_THROW
3419{ 4309{
3420 w->sent = 1; 4310 w->sent = 1;
3421 evpipe_write (EV_A_ &gotasync); 4311 evpipe_write (EV_A_ &async_pending);
3422} 4312}
3423#endif 4313#endif
3424 4314
3425/*****************************************************************************/ 4315/*****************************************************************************/
3426 4316
… …
3460 4350
3461 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4351 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3462} 4352}
3463 4353
3464void 4354void
3465ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4355ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3466{ 4356{
3467 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4357 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3468 4358
3469 if (expect_false (!once)) 4359 if (expect_false (!once))
3470 { 4360 {
3471 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4361 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3472 return; 4362 return;
3473 } 4363 }
3474 4364
3475 once->cb = cb; 4365 once->cb = cb;
3476 once->arg = arg; 4366 once->arg = arg;
… …
3491} 4381}
3492 4382
3493/*****************************************************************************/ 4383/*****************************************************************************/
3494 4384
3495#if EV_WALK_ENABLE 4385#if EV_WALK_ENABLE
3496void 4386void ecb_cold
3497ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4387ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3498{ 4388{
3499 int i, j; 4389 int i, j;
3500 ev_watcher_list *wl, *wn; 4390 ev_watcher_list *wl, *wn;
3501 4391
3502 if (types & (EV_IO | EV_EMBED)) 4392 if (types & (EV_IO | EV_EMBED))
… …
3545 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4435 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3546#endif 4436#endif
3547 4437
3548#if EV_IDLE_ENABLE 4438#if EV_IDLE_ENABLE
3549 if (types & EV_IDLE) 4439 if (types & EV_IDLE)
3550 for (j = NUMPRI; i--; ) 4440 for (j = NUMPRI; j--; )
3551 for (i = idlecnt [j]; i--; ) 4441 for (i = idlecnt [j]; i--; )
3552 cb (EV_A_ EV_IDLE, idles [j][i]); 4442 cb (EV_A_ EV_IDLE, idles [j][i]);
3553#endif 4443#endif
3554 4444
3555#if EV_FORK_ENABLE 4445#if EV_FORK_ENABLE
… …
3563 if (types & EV_ASYNC) 4453 if (types & EV_ASYNC)
3564 for (i = asynccnt; i--; ) 4454 for (i = asynccnt; i--; )
3565 cb (EV_A_ EV_ASYNC, asyncs [i]); 4455 cb (EV_A_ EV_ASYNC, asyncs [i]);
3566#endif 4456#endif
3567 4457
4458#if EV_PREPARE_ENABLE
3568 if (types & EV_PREPARE) 4459 if (types & EV_PREPARE)
3569 for (i = preparecnt; i--; ) 4460 for (i = preparecnt; i--; )
3570#if EV_EMBED_ENABLE 4461# if EV_EMBED_ENABLE
3571 if (ev_cb (prepares [i]) != embed_prepare_cb) 4462 if (ev_cb (prepares [i]) != embed_prepare_cb)
3572#endif 4463# endif
3573 cb (EV_A_ EV_PREPARE, prepares [i]); 4464 cb (EV_A_ EV_PREPARE, prepares [i]);
4465#endif
3574 4466
4467#if EV_CHECK_ENABLE
3575 if (types & EV_CHECK) 4468 if (types & EV_CHECK)
3576 for (i = checkcnt; i--; ) 4469 for (i = checkcnt; i--; )
3577 cb (EV_A_ EV_CHECK, checks [i]); 4470 cb (EV_A_ EV_CHECK, checks [i]);
4471#endif
3578 4472
4473#if EV_SIGNAL_ENABLE
3579 if (types & EV_SIGNAL) 4474 if (types & EV_SIGNAL)
3580 for (i = 0; i < EV_NSIG - 1; ++i) 4475 for (i = 0; i < EV_NSIG - 1; ++i)
3581 for (wl = signals [i].head; wl; ) 4476 for (wl = signals [i].head; wl; )
3582 { 4477 {
3583 wn = wl->next; 4478 wn = wl->next;
3584 cb (EV_A_ EV_SIGNAL, wl); 4479 cb (EV_A_ EV_SIGNAL, wl);
3585 wl = wn; 4480 wl = wn;
3586 } 4481 }
4482#endif
3587 4483
4484#if EV_CHILD_ENABLE
3588 if (types & EV_CHILD) 4485 if (types & EV_CHILD)
3589 for (i = EV_PID_HASHSIZE; i--; ) 4486 for (i = (EV_PID_HASHSIZE); i--; )
3590 for (wl = childs [i]; wl; ) 4487 for (wl = childs [i]; wl; )
3591 { 4488 {
3592 wn = wl->next; 4489 wn = wl->next;
3593 cb (EV_A_ EV_CHILD, wl); 4490 cb (EV_A_ EV_CHILD, wl);
3594 wl = wn; 4491 wl = wn;
3595 } 4492 }
4493#endif
3596/* EV_STAT 0x00001000 /* stat data changed */ 4494/* EV_STAT 0x00001000 /* stat data changed */
3597/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4495/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3598} 4496}
3599#endif 4497#endif
3600 4498
3601#if EV_MULTIPLICITY 4499#if EV_MULTIPLICITY
3602 #include "ev_wrap.h" 4500 #include "ev_wrap.h"
3603#endif 4501#endif
3604 4502
3605#ifdef __cplusplus
3606}
3607#endif
3608

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