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Comparing libev/ev.c (file contents):
Revision 1.336 by root, Wed Mar 10 08:19:38 2010 UTC vs.
Revision 1.429 by root, Tue May 8 15:50:49 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 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
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
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>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
171 181
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# 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
176#endif 197#endif
177 198
178#ifndef _WIN32 199#ifndef _WIN32
179# include <sys/time.h> 200# include <sys/time.h>
180# include <sys/wait.h> 201# include <sys/wait.h>
181# include <unistd.h> 202# include <unistd.h>
182#else 203#else
183# include <io.h> 204# include <io.h>
184# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
185# include <windows.h> 206# include <windows.h>
207# include <winsock2.h>
186# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
188# endif 210# endif
189# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
190#endif 212#endif
191 213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221
192/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
193 223
194/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 225#if defined EV_NSIG
196/* use what's provided */ 226/* use what's provided */
197#elif defined (NSIG) 227#elif defined NSIG
198# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
199#elif defined(_NSIG) 229#elif defined _NSIG
200# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX) 231#elif defined SIGMAX
202# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX) 233#elif defined SIG_MAX
204# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
206# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG) 237#elif defined MAXSIG
208# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 239#elif defined MAX_SIG
210# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
212# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 243#elif defined _sys_nsig
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 245#else
216# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
218/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
219# define EV_NSIG 65 249# define EV_NSIG 65
220#endif 250#endif
221 251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
254#endif
255
222#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
223# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
224# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
225# else 259# else
226# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
227# endif 261# endif
228#endif 262#endif
229 263
230#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
231# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
232# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
233# else 267# else
234# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
235# endif 269# endif
236#endif 270#endif
237 271
… …
239# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
240#endif 274#endif
241 275
242#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
243# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
244# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
245# else 279# else
246# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
247# endif 281# endif
248#endif 282#endif
249 283
250#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
251# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
252#endif 286#endif
253 287
254#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
255# ifdef _WIN32 289# ifdef _WIN32
256# define EV_USE_POLL 0 290# define EV_USE_POLL 0
257# else 291# else
258# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
259# endif 293# endif
260#endif 294#endif
261 295
262#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
263# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
264# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
265# else 299# else
266# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
267# endif 301# endif
268#endif 302#endif
269 303
… …
275# define EV_USE_PORT 0 309# define EV_USE_PORT 0
276#endif 310#endif
277 311
278#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
279# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
280# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
281# else 315# else
282# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
283# endif 317# endif
284#endif 318#endif
285 319
286#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
287# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
288# define EV_PID_HASHSIZE 1
289# else
290# define EV_PID_HASHSIZE 16
291# endif
292#endif 322#endif
293 323
294#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
295# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
296# define EV_INOTIFY_HASHSIZE 1
297# else
298# define EV_INOTIFY_HASHSIZE 16
299# endif
300#endif 326#endif
301 327
302#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
304# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
305# else 331# else
306# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
307# endif 333# endif
308#endif 334#endif
309 335
310#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
311# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
312# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
313# else 339# else
314# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
315# endif 341# endif
316#endif 342#endif
317 343
… …
320# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
321# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
322#endif 348#endif
323 349
324#ifndef EV_VERIFY 350#ifndef EV_VERIFY
325# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
326#endif 352#endif
327 353
328#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
329# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
330#endif 356#endif
331 357
332#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
333# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
334#endif 360#endif
335 361
336/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
337/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
338#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
339# include <syscall.h> 365# include <sys/syscall.h>
340# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
341# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
342# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
343# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
344# else 370# else
… …
369# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
370# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
371#endif 397#endif
372 398
373#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
374# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
375# include <sys/select.h> 402# include <sys/select.h>
376# endif 403# endif
377#endif 404#endif
378 405
379#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
380# include <sys/utsname.h>
381# include <sys/statfs.h> 407# include <sys/statfs.h>
382# include <sys/inotify.h> 408# include <sys/inotify.h>
383/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
384# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
385# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
… …
402# define EFD_CLOEXEC O_CLOEXEC 428# define EFD_CLOEXEC O_CLOEXEC
403# else 429# else
404# define EFD_CLOEXEC 02000000 430# define EFD_CLOEXEC 02000000
405# endif 431# endif
406# endif 432# endif
407# ifdef __cplusplus
408extern "C" {
409# endif
410int (eventfd) (unsigned int initval, int flags); 433EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
411# ifdef __cplusplus
412}
413# endif
414#endif 434#endif
415 435
416#if EV_USE_SIGNALFD 436#if EV_USE_SIGNALFD
417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 437/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
418# include <stdint.h> 438# include <stdint.h>
… …
424# define SFD_CLOEXEC O_CLOEXEC 444# define SFD_CLOEXEC O_CLOEXEC
425# else 445# else
426# define SFD_CLOEXEC 02000000 446# define SFD_CLOEXEC 02000000
427# endif 447# endif
428# endif 448# endif
429# ifdef __cplusplus
430extern "C" {
431# endif
432int signalfd (int fd, const sigset_t *mask, int flags); 449EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
433 450
434struct signalfd_siginfo 451struct signalfd_siginfo
435{ 452{
436 uint32_t ssi_signo; 453 uint32_t ssi_signo;
437 char pad[128 - sizeof (uint32_t)]; 454 char pad[128 - sizeof (uint32_t)];
438}; 455};
439# ifdef __cplusplus
440}
441# endif 456#endif
442#endif
443
444 457
445/**/ 458/**/
446 459
447#if EV_VERIFY >= 3 460#if EV_VERIFY >= 3
448# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 461# define EV_FREQUENT_CHECK ev_verify (EV_A)
449#else 462#else
450# define EV_FREQUENT_CHECK do { } while (0) 463# define EV_FREQUENT_CHECK do { } while (0)
451#endif 464#endif
452 465
453/* 466/*
454 * This is used to avoid floating point rounding problems. 467 * This is used to work around floating point rounding problems.
455 * It is added to ev_rt_now when scheduling periodics
456 * to ensure progress, time-wise, even when rounding
457 * errors are against us.
458 * This value is good at least till the year 4000. 468 * This value is good at least till the year 4000.
459 * Better solutions welcome.
460 */ 469 */
461#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 470#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
471/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
462 472
463#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 473#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 474#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465 475
476#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
477#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
478
479/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
480/* ECB.H BEGIN */
481/*
482 * libecb - http://software.schmorp.de/pkg/libecb
483 *
484 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
485 * Copyright (©) 2011 Emanuele Giaquinta
486 * All rights reserved.
487 *
488 * Redistribution and use in source and binary forms, with or without modifica-
489 * tion, are permitted provided that the following conditions are met:
490 *
491 * 1. Redistributions of source code must retain the above copyright notice,
492 * this list of conditions and the following disclaimer.
493 *
494 * 2. Redistributions in binary form must reproduce the above copyright
495 * notice, this list of conditions and the following disclaimer in the
496 * documentation and/or other materials provided with the distribution.
497 *
498 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
499 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
500 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
501 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
502 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
503 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
504 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
505 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
506 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
507 * OF THE POSSIBILITY OF SUCH DAMAGE.
508 */
509
510#ifndef ECB_H
511#define ECB_H
512
513#ifdef _WIN32
514 typedef signed char int8_t;
515 typedef unsigned char uint8_t;
516 typedef signed short int16_t;
517 typedef unsigned short uint16_t;
518 typedef signed int int32_t;
519 typedef unsigned int uint32_t;
466#if __GNUC__ >= 4 520 #if __GNUC__
467# define expect(expr,value) __builtin_expect ((expr),(value)) 521 typedef signed long long int64_t;
468# define noinline __attribute__ ((noinline)) 522 typedef unsigned long long uint64_t;
523 #else /* _MSC_VER || __BORLANDC__ */
524 typedef signed __int64 int64_t;
525 typedef unsigned __int64 uint64_t;
526 #endif
469#else 527#else
470# define expect(expr,value) (expr) 528 #include <inttypes.h>
471# define noinline
472# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
473# define inline
474# endif 529#endif
530
531/* many compilers define _GNUC_ to some versions but then only implement
532 * what their idiot authors think are the "more important" extensions,
533 * causing enormous grief in return for some better fake benchmark numbers.
534 * or so.
535 * we try to detect these and simply assume they are not gcc - if they have
536 * an issue with that they should have done it right in the first place.
537 */
538#ifndef ECB_GCC_VERSION
539 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
540 #define ECB_GCC_VERSION(major,minor) 0
541 #else
542 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
475#endif 543 #endif
544#endif
476 545
546/*****************************************************************************/
547
548/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
549/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
550
551#if ECB_NO_THREADS
552# define ECB_NO_SMP 1
553#endif
554
555#if ECB_NO_THREADS || ECB_NO_SMP
556 #define ECB_MEMORY_FENCE do { } while (0)
557#endif
558
559#ifndef ECB_MEMORY_FENCE
560 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
561 #if __i386 || __i386__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
564 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
565 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
568 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
569 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
570 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
571 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
572 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
573 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
574 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
575 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
576 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
577 #elif __sparc || __sparc__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
579 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
580 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
581 #elif defined __s390__ || defined __s390x__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
583 #elif defined __mips__
584 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
585 #elif defined __alpha__
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
587 #endif
588 #endif
589#endif
590
591#ifndef ECB_MEMORY_FENCE
592 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
593 #define ECB_MEMORY_FENCE __sync_synchronize ()
594 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
595 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
596 #elif _MSC_VER >= 1400 /* VC++ 2005 */
597 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
598 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
599 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
600 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
601 #elif defined _WIN32
602 #include <WinNT.h>
603 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
604 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
605 #include <mbarrier.h>
606 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
607 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
608 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
609 #elif __xlC__
610 #define ECB_MEMORY_FENCE __sync ()
611 #endif
612#endif
613
614#ifndef ECB_MEMORY_FENCE
615 #if !ECB_AVOID_PTHREADS
616 /*
617 * if you get undefined symbol references to pthread_mutex_lock,
618 * or failure to find pthread.h, then you should implement
619 * the ECB_MEMORY_FENCE operations for your cpu/compiler
620 * OR provide pthread.h and link against the posix thread library
621 * of your system.
622 */
623 #include <pthread.h>
624 #define ECB_NEEDS_PTHREADS 1
625 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
626
627 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
628 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
629 #endif
630#endif
631
632#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
633 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
634#endif
635
636#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
637 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
638#endif
639
640/*****************************************************************************/
641
642#define ECB_C99 (__STDC_VERSION__ >= 199901L)
643
644#if __cplusplus
645 #define ecb_inline static inline
646#elif ECB_GCC_VERSION(2,5)
647 #define ecb_inline static __inline__
648#elif ECB_C99
649 #define ecb_inline static inline
650#else
651 #define ecb_inline static
652#endif
653
654#if ECB_GCC_VERSION(3,3)
655 #define ecb_restrict __restrict__
656#elif ECB_C99
657 #define ecb_restrict restrict
658#else
659 #define ecb_restrict
660#endif
661
662typedef int ecb_bool;
663
664#define ECB_CONCAT_(a, b) a ## b
665#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
666#define ECB_STRINGIFY_(a) # a
667#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
668
669#define ecb_function_ ecb_inline
670
671#if ECB_GCC_VERSION(3,1)
672 #define ecb_attribute(attrlist) __attribute__(attrlist)
673 #define ecb_is_constant(expr) __builtin_constant_p (expr)
674 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
675 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
676#else
677 #define ecb_attribute(attrlist)
678 #define ecb_is_constant(expr) 0
679 #define ecb_expect(expr,value) (expr)
680 #define ecb_prefetch(addr,rw,locality)
681#endif
682
683/* no emulation for ecb_decltype */
684#if ECB_GCC_VERSION(4,5)
685 #define ecb_decltype(x) __decltype(x)
686#elif ECB_GCC_VERSION(3,0)
687 #define ecb_decltype(x) __typeof(x)
688#endif
689
690#define ecb_noinline ecb_attribute ((__noinline__))
691#define ecb_noreturn ecb_attribute ((__noreturn__))
692#define ecb_unused ecb_attribute ((__unused__))
693#define ecb_const ecb_attribute ((__const__))
694#define ecb_pure ecb_attribute ((__pure__))
695
696#if ECB_GCC_VERSION(4,3)
697 #define ecb_artificial ecb_attribute ((__artificial__))
698 #define ecb_hot ecb_attribute ((__hot__))
699 #define ecb_cold ecb_attribute ((__cold__))
700#else
701 #define ecb_artificial
702 #define ecb_hot
703 #define ecb_cold
704#endif
705
706/* put around conditional expressions if you are very sure that the */
707/* expression is mostly true or mostly false. note that these return */
708/* booleans, not the expression. */
477#define expect_false(expr) expect ((expr) != 0, 0) 709#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
478#define expect_true(expr) expect ((expr) != 0, 1) 710#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
711/* for compatibility to the rest of the world */
712#define ecb_likely(expr) ecb_expect_true (expr)
713#define ecb_unlikely(expr) ecb_expect_false (expr)
714
715/* count trailing zero bits and count # of one bits */
716#if ECB_GCC_VERSION(3,4)
717 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
718 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
719 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
720 #define ecb_ctz32(x) __builtin_ctz (x)
721 #define ecb_ctz64(x) __builtin_ctzll (x)
722 #define ecb_popcount32(x) __builtin_popcount (x)
723 /* no popcountll */
724#else
725 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
726 ecb_function_ int
727 ecb_ctz32 (uint32_t x)
728 {
729 int r = 0;
730
731 x &= ~x + 1; /* this isolates the lowest bit */
732
733#if ECB_branchless_on_i386
734 r += !!(x & 0xaaaaaaaa) << 0;
735 r += !!(x & 0xcccccccc) << 1;
736 r += !!(x & 0xf0f0f0f0) << 2;
737 r += !!(x & 0xff00ff00) << 3;
738 r += !!(x & 0xffff0000) << 4;
739#else
740 if (x & 0xaaaaaaaa) r += 1;
741 if (x & 0xcccccccc) r += 2;
742 if (x & 0xf0f0f0f0) r += 4;
743 if (x & 0xff00ff00) r += 8;
744 if (x & 0xffff0000) r += 16;
745#endif
746
747 return r;
748 }
749
750 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
751 ecb_function_ int
752 ecb_ctz64 (uint64_t x)
753 {
754 int shift = x & 0xffffffffU ? 0 : 32;
755 return ecb_ctz32 (x >> shift) + shift;
756 }
757
758 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
759 ecb_function_ int
760 ecb_popcount32 (uint32_t x)
761 {
762 x -= (x >> 1) & 0x55555555;
763 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
764 x = ((x >> 4) + x) & 0x0f0f0f0f;
765 x *= 0x01010101;
766
767 return x >> 24;
768 }
769
770 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
771 ecb_function_ int ecb_ld32 (uint32_t x)
772 {
773 int r = 0;
774
775 if (x >> 16) { x >>= 16; r += 16; }
776 if (x >> 8) { x >>= 8; r += 8; }
777 if (x >> 4) { x >>= 4; r += 4; }
778 if (x >> 2) { x >>= 2; r += 2; }
779 if (x >> 1) { r += 1; }
780
781 return r;
782 }
783
784 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
785 ecb_function_ int ecb_ld64 (uint64_t x)
786 {
787 int r = 0;
788
789 if (x >> 32) { x >>= 32; r += 32; }
790
791 return r + ecb_ld32 (x);
792 }
793#endif
794
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
796ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
797{
798 return ( (x * 0x0802U & 0x22110U)
799 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
800}
801
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
803ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
804{
805 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
806 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
807 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
808 x = ( x >> 8 ) | ( x << 8);
809
810 return x;
811}
812
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
814ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
815{
816 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
817 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
818 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
819 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
820 x = ( x >> 16 ) | ( x << 16);
821
822 return x;
823}
824
825/* popcount64 is only available on 64 bit cpus as gcc builtin */
826/* so for this version we are lazy */
827ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
828ecb_function_ int
829ecb_popcount64 (uint64_t x)
830{
831 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
832}
833
834ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
841ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
842
843ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
844ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
845ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
846ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
847ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
848ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
849ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
850ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
851
852#if ECB_GCC_VERSION(4,3)
853 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
854 #define ecb_bswap32(x) __builtin_bswap32 (x)
855 #define ecb_bswap64(x) __builtin_bswap64 (x)
856#else
857 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
858 ecb_function_ uint16_t
859 ecb_bswap16 (uint16_t x)
860 {
861 return ecb_rotl16 (x, 8);
862 }
863
864 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
865 ecb_function_ uint32_t
866 ecb_bswap32 (uint32_t x)
867 {
868 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
869 }
870
871 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
872 ecb_function_ uint64_t
873 ecb_bswap64 (uint64_t x)
874 {
875 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
876 }
877#endif
878
879#if ECB_GCC_VERSION(4,5)
880 #define ecb_unreachable() __builtin_unreachable ()
881#else
882 /* this seems to work fine, but gcc always emits a warning for it :/ */
883 ecb_inline void ecb_unreachable (void) ecb_noreturn;
884 ecb_inline void ecb_unreachable (void) { }
885#endif
886
887/* try to tell the compiler that some condition is definitely true */
888#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
889
890ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
891ecb_inline unsigned char
892ecb_byteorder_helper (void)
893{
894 const uint32_t u = 0x11223344;
895 return *(unsigned char *)&u;
896}
897
898ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
899ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
900ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
901ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
902
903#if ECB_GCC_VERSION(3,0) || ECB_C99
904 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
905#else
906 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
907#endif
908
909#if __cplusplus
910 template<typename T>
911 static inline T ecb_div_rd (T val, T div)
912 {
913 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
914 }
915 template<typename T>
916 static inline T ecb_div_ru (T val, T div)
917 {
918 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
919 }
920#else
921 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
922 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
923#endif
924
925#if ecb_cplusplus_does_not_suck
926 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
927 template<typename T, int N>
928 static inline int ecb_array_length (const T (&arr)[N])
929 {
930 return N;
931 }
932#else
933 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
934#endif
935
936#endif
937
938/* ECB.H END */
939
940#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
941/* if your architecture doesn't need memory fences, e.g. because it is
942 * single-cpu/core, or if you use libev in a project that doesn't use libev
943 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
944 * libev, in which cases the memory fences become nops.
945 * alternatively, you can remove this #error and link against libpthread,
946 * which will then provide the memory fences.
947 */
948# error "memory fences not defined for your architecture, please report"
949#endif
950
951#ifndef ECB_MEMORY_FENCE
952# define ECB_MEMORY_FENCE do { } while (0)
953# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
954# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
955#endif
956
957#define expect_false(cond) ecb_expect_false (cond)
958#define expect_true(cond) ecb_expect_true (cond)
959#define noinline ecb_noinline
960
479#define inline_size static inline 961#define inline_size ecb_inline
480 962
481#if EV_MINIMAL 963#if EV_FEATURE_CODE
964# define inline_speed ecb_inline
965#else
482# define inline_speed static noinline 966# define inline_speed static noinline
483#else
484# define inline_speed static inline
485#endif 967#endif
486 968
487#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 969#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
488 970
489#if EV_MINPRI == EV_MAXPRI 971#if EV_MINPRI == EV_MAXPRI
… …
502#define ev_active(w) ((W)(w))->active 984#define ev_active(w) ((W)(w))->active
503#define ev_at(w) ((WT)(w))->at 985#define ev_at(w) ((WT)(w))->at
504 986
505#if EV_USE_REALTIME 987#if EV_USE_REALTIME
506/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 988/* sig_atomic_t is used to avoid per-thread variables or locking but still */
507/* giving it a reasonably high chance of working on typical architetcures */ 989/* giving it a reasonably high chance of working on typical architectures */
508static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 990static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
509#endif 991#endif
510 992
511#if EV_USE_MONOTONIC 993#if EV_USE_MONOTONIC
512static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 994static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
526# include "ev_win32.c" 1008# include "ev_win32.c"
527#endif 1009#endif
528 1010
529/*****************************************************************************/ 1011/*****************************************************************************/
530 1012
1013/* define a suitable floor function (only used by periodics atm) */
1014
1015#if EV_USE_FLOOR
1016# include <math.h>
1017# define ev_floor(v) floor (v)
1018#else
1019
1020#include <float.h>
1021
1022/* a floor() replacement function, should be independent of ev_tstamp type */
1023static ev_tstamp noinline
1024ev_floor (ev_tstamp v)
1025{
1026 /* the choice of shift factor is not terribly important */
1027#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1028 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1029#else
1030 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1031#endif
1032
1033 /* argument too large for an unsigned long? */
1034 if (expect_false (v >= shift))
1035 {
1036 ev_tstamp f;
1037
1038 if (v == v - 1.)
1039 return v; /* very large number */
1040
1041 f = shift * ev_floor (v * (1. / shift));
1042 return f + ev_floor (v - f);
1043 }
1044
1045 /* special treatment for negative args? */
1046 if (expect_false (v < 0.))
1047 {
1048 ev_tstamp f = -ev_floor (-v);
1049
1050 return f - (f == v ? 0 : 1);
1051 }
1052
1053 /* fits into an unsigned long */
1054 return (unsigned long)v;
1055}
1056
1057#endif
1058
1059/*****************************************************************************/
1060
1061#ifdef __linux
1062# include <sys/utsname.h>
1063#endif
1064
1065static unsigned int noinline ecb_cold
1066ev_linux_version (void)
1067{
1068#ifdef __linux
1069 unsigned int v = 0;
1070 struct utsname buf;
1071 int i;
1072 char *p = buf.release;
1073
1074 if (uname (&buf))
1075 return 0;
1076
1077 for (i = 3+1; --i; )
1078 {
1079 unsigned int c = 0;
1080
1081 for (;;)
1082 {
1083 if (*p >= '0' && *p <= '9')
1084 c = c * 10 + *p++ - '0';
1085 else
1086 {
1087 p += *p == '.';
1088 break;
1089 }
1090 }
1091
1092 v = (v << 8) | c;
1093 }
1094
1095 return v;
1096#else
1097 return 0;
1098#endif
1099}
1100
1101/*****************************************************************************/
1102
531#if EV_AVOID_STDIO 1103#if EV_AVOID_STDIO
532static void noinline 1104static void noinline ecb_cold
533ev_printerr (const char *msg) 1105ev_printerr (const char *msg)
534{ 1106{
535 write (STDERR_FILENO, msg, strlen (msg)); 1107 write (STDERR_FILENO, msg, strlen (msg));
536} 1108}
537#endif 1109#endif
538 1110
539static void (*syserr_cb)(const char *msg); 1111static void (*syserr_cb)(const char *msg) EV_THROW;
540 1112
541void 1113void ecb_cold
542ev_set_syserr_cb (void (*cb)(const char *msg)) 1114ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
543{ 1115{
544 syserr_cb = cb; 1116 syserr_cb = cb;
545} 1117}
546 1118
547static void noinline 1119static void noinline ecb_cold
548ev_syserr (const char *msg) 1120ev_syserr (const char *msg)
549{ 1121{
550 if (!msg) 1122 if (!msg)
551 msg = "(libev) system error"; 1123 msg = "(libev) system error";
552 1124
553 if (syserr_cb) 1125 if (syserr_cb)
554 syserr_cb (msg); 1126 syserr_cb (msg);
555 else 1127 else
556 { 1128 {
557#if EV_AVOID_STDIO 1129#if EV_AVOID_STDIO
558 const char *err = strerror (errno);
559
560 ev_printerr (msg); 1130 ev_printerr (msg);
561 ev_printerr (": "); 1131 ev_printerr (": ");
562 ev_printerr (err); 1132 ev_printerr (strerror (errno));
563 ev_printerr ("\n"); 1133 ev_printerr ("\n");
564#else 1134#else
565 perror (msg); 1135 perror (msg);
566#endif 1136#endif
567 abort (); 1137 abort ();
… …
585 free (ptr); 1155 free (ptr);
586 return 0; 1156 return 0;
587#endif 1157#endif
588} 1158}
589 1159
590static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1160static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
591 1161
592void 1162void ecb_cold
593ev_set_allocator (void *(*cb)(void *ptr, long size)) 1163ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
594{ 1164{
595 alloc = cb; 1165 alloc = cb;
596} 1166}
597 1167
598inline_speed void * 1168inline_speed void *
… …
601 ptr = alloc (ptr, size); 1171 ptr = alloc (ptr, size);
602 1172
603 if (!ptr && size) 1173 if (!ptr && size)
604 { 1174 {
605#if EV_AVOID_STDIO 1175#if EV_AVOID_STDIO
606 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1176 ev_printerr ("(libev) memory allocation failed, aborting.\n");
607#else 1177#else
608 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1178 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
609#endif 1179#endif
610 abort (); 1180 abort ();
611 } 1181 }
612 1182
613 return ptr; 1183 return ptr;
… …
630 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1200 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
631 unsigned char unused; 1201 unsigned char unused;
632#if EV_USE_EPOLL 1202#if EV_USE_EPOLL
633 unsigned int egen; /* generation counter to counter epoll bugs */ 1203 unsigned int egen; /* generation counter to counter epoll bugs */
634#endif 1204#endif
635#if EV_SELECT_IS_WINSOCKET 1205#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
636 SOCKET handle; 1206 SOCKET handle;
1207#endif
1208#if EV_USE_IOCP
1209 OVERLAPPED or, ow;
637#endif 1210#endif
638} ANFD; 1211} ANFD;
639 1212
640/* stores the pending event set for a given watcher */ 1213/* stores the pending event set for a given watcher */
641typedef struct 1214typedef struct
… …
683 #undef VAR 1256 #undef VAR
684 }; 1257 };
685 #include "ev_wrap.h" 1258 #include "ev_wrap.h"
686 1259
687 static struct ev_loop default_loop_struct; 1260 static struct ev_loop default_loop_struct;
688 struct ev_loop *ev_default_loop_ptr; 1261 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
689 1262
690#else 1263#else
691 1264
692 ev_tstamp ev_rt_now; 1265 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
693 #define VAR(name,decl) static decl; 1266 #define VAR(name,decl) static decl;
694 #include "ev_vars.h" 1267 #include "ev_vars.h"
695 #undef VAR 1268 #undef VAR
696 1269
697 static int ev_default_loop_ptr; 1270 static int ev_default_loop_ptr;
698 1271
699#endif 1272#endif
700 1273
701#if EV_MINIMAL < 2 1274#if EV_FEATURE_API
702# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1275# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
703# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1276# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
704# define EV_INVOKE_PENDING invoke_cb (EV_A) 1277# define EV_INVOKE_PENDING invoke_cb (EV_A)
705#else 1278#else
706# define EV_RELEASE_CB (void)0 1279# define EV_RELEASE_CB (void)0
707# define EV_ACQUIRE_CB (void)0 1280# define EV_ACQUIRE_CB (void)0
708# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1281# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
709#endif 1282#endif
710 1283
711#define EVUNLOOP_RECURSE 0x80 1284#define EVBREAK_RECURSE 0x80
712 1285
713/*****************************************************************************/ 1286/*****************************************************************************/
714 1287
715#ifndef EV_HAVE_EV_TIME 1288#ifndef EV_HAVE_EV_TIME
716ev_tstamp 1289ev_tstamp
717ev_time (void) 1290ev_time (void) EV_THROW
718{ 1291{
719#if EV_USE_REALTIME 1292#if EV_USE_REALTIME
720 if (expect_true (have_realtime)) 1293 if (expect_true (have_realtime))
721 { 1294 {
722 struct timespec ts; 1295 struct timespec ts;
… …
746 return ev_time (); 1319 return ev_time ();
747} 1320}
748 1321
749#if EV_MULTIPLICITY 1322#if EV_MULTIPLICITY
750ev_tstamp 1323ev_tstamp
751ev_now (EV_P) 1324ev_now (EV_P) EV_THROW
752{ 1325{
753 return ev_rt_now; 1326 return ev_rt_now;
754} 1327}
755#endif 1328#endif
756 1329
757void 1330void
758ev_sleep (ev_tstamp delay) 1331ev_sleep (ev_tstamp delay) EV_THROW
759{ 1332{
760 if (delay > 0.) 1333 if (delay > 0.)
761 { 1334 {
762#if EV_USE_NANOSLEEP 1335#if EV_USE_NANOSLEEP
763 struct timespec ts; 1336 struct timespec ts;
764 1337
765 ts.tv_sec = (time_t)delay; 1338 EV_TS_SET (ts, delay);
766 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
767
768 nanosleep (&ts, 0); 1339 nanosleep (&ts, 0);
769#elif defined(_WIN32) 1340#elif defined _WIN32
770 Sleep ((unsigned long)(delay * 1e3)); 1341 Sleep ((unsigned long)(delay * 1e3));
771#else 1342#else
772 struct timeval tv; 1343 struct timeval tv;
773 1344
774 tv.tv_sec = (time_t)delay;
775 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
776
777 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1345 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
778 /* something not guaranteed by newer posix versions, but guaranteed */ 1346 /* something not guaranteed by newer posix versions, but guaranteed */
779 /* by older ones */ 1347 /* by older ones */
1348 EV_TV_SET (tv, delay);
780 select (0, 0, 0, 0, &tv); 1349 select (0, 0, 0, 0, &tv);
781#endif 1350#endif
782 } 1351 }
783} 1352}
784 1353
785/*****************************************************************************/ 1354/*****************************************************************************/
786 1355
787#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1356#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
788 1357
789/* find a suitable new size for the given array, */ 1358/* find a suitable new size for the given array, */
790/* hopefully by rounding to a ncie-to-malloc size */ 1359/* hopefully by rounding to a nice-to-malloc size */
791inline_size int 1360inline_size int
792array_nextsize (int elem, int cur, int cnt) 1361array_nextsize (int elem, int cur, int cnt)
793{ 1362{
794 int ncur = cur + 1; 1363 int ncur = cur + 1;
795 1364
796 do 1365 do
797 ncur <<= 1; 1366 ncur <<= 1;
798 while (cnt > ncur); 1367 while (cnt > ncur);
799 1368
800 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1369 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
801 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1370 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
802 { 1371 {
803 ncur *= elem; 1372 ncur *= elem;
804 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1373 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
805 ncur = ncur - sizeof (void *) * 4; 1374 ncur = ncur - sizeof (void *) * 4;
… …
807 } 1376 }
808 1377
809 return ncur; 1378 return ncur;
810} 1379}
811 1380
812static noinline void * 1381static void * noinline ecb_cold
813array_realloc (int elem, void *base, int *cur, int cnt) 1382array_realloc (int elem, void *base, int *cur, int cnt)
814{ 1383{
815 *cur = array_nextsize (elem, *cur, cnt); 1384 *cur = array_nextsize (elem, *cur, cnt);
816 return ev_realloc (base, elem * *cur); 1385 return ev_realloc (base, elem * *cur);
817} 1386}
… …
820 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1389 memset ((void *)(base), 0, sizeof (*(base)) * (count))
821 1390
822#define array_needsize(type,base,cur,cnt,init) \ 1391#define array_needsize(type,base,cur,cnt,init) \
823 if (expect_false ((cnt) > (cur))) \ 1392 if (expect_false ((cnt) > (cur))) \
824 { \ 1393 { \
825 int ocur_ = (cur); \ 1394 int ecb_unused ocur_ = (cur); \
826 (base) = (type *)array_realloc \ 1395 (base) = (type *)array_realloc \
827 (sizeof (type), (base), &(cur), (cnt)); \ 1396 (sizeof (type), (base), &(cur), (cnt)); \
828 init ((base) + (ocur_), (cur) - ocur_); \ 1397 init ((base) + (ocur_), (cur) - ocur_); \
829 } 1398 }
830 1399
… …
848pendingcb (EV_P_ ev_prepare *w, int revents) 1417pendingcb (EV_P_ ev_prepare *w, int revents)
849{ 1418{
850} 1419}
851 1420
852void noinline 1421void noinline
853ev_feed_event (EV_P_ void *w, int revents) 1422ev_feed_event (EV_P_ void *w, int revents) EV_THROW
854{ 1423{
855 W w_ = (W)w; 1424 W w_ = (W)w;
856 int pri = ABSPRI (w_); 1425 int pri = ABSPRI (w_);
857 1426
858 if (expect_false (w_->pending)) 1427 if (expect_false (w_->pending))
… …
862 w_->pending = ++pendingcnt [pri]; 1431 w_->pending = ++pendingcnt [pri];
863 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1432 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
864 pendings [pri][w_->pending - 1].w = w_; 1433 pendings [pri][w_->pending - 1].w = w_;
865 pendings [pri][w_->pending - 1].events = revents; 1434 pendings [pri][w_->pending - 1].events = revents;
866 } 1435 }
1436
1437 pendingpri = NUMPRI - 1;
867} 1438}
868 1439
869inline_speed void 1440inline_speed void
870feed_reverse (EV_P_ W w) 1441feed_reverse (EV_P_ W w)
871{ 1442{
… …
891} 1462}
892 1463
893/*****************************************************************************/ 1464/*****************************************************************************/
894 1465
895inline_speed void 1466inline_speed void
896fd_event_nc (EV_P_ int fd, int revents) 1467fd_event_nocheck (EV_P_ int fd, int revents)
897{ 1468{
898 ANFD *anfd = anfds + fd; 1469 ANFD *anfd = anfds + fd;
899 ev_io *w; 1470 ev_io *w;
900 1471
901 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1472 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
913fd_event (EV_P_ int fd, int revents) 1484fd_event (EV_P_ int fd, int revents)
914{ 1485{
915 ANFD *anfd = anfds + fd; 1486 ANFD *anfd = anfds + fd;
916 1487
917 if (expect_true (!anfd->reify)) 1488 if (expect_true (!anfd->reify))
918 fd_event_nc (EV_A_ fd, revents); 1489 fd_event_nocheck (EV_A_ fd, revents);
919} 1490}
920 1491
921void 1492void
922ev_feed_fd_event (EV_P_ int fd, int revents) 1493ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
923{ 1494{
924 if (fd >= 0 && fd < anfdmax) 1495 if (fd >= 0 && fd < anfdmax)
925 fd_event_nc (EV_A_ fd, revents); 1496 fd_event_nocheck (EV_A_ fd, revents);
926} 1497}
927 1498
928/* make sure the external fd watch events are in-sync */ 1499/* make sure the external fd watch events are in-sync */
929/* with the kernel/libev internal state */ 1500/* with the kernel/libev internal state */
930inline_size void 1501inline_size void
931fd_reify (EV_P) 1502fd_reify (EV_P)
932{ 1503{
933 int i; 1504 int i;
934 1505
1506#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1507 for (i = 0; i < fdchangecnt; ++i)
1508 {
1509 int fd = fdchanges [i];
1510 ANFD *anfd = anfds + fd;
1511
1512 if (anfd->reify & EV__IOFDSET && anfd->head)
1513 {
1514 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1515
1516 if (handle != anfd->handle)
1517 {
1518 unsigned long arg;
1519
1520 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1521
1522 /* handle changed, but fd didn't - we need to do it in two steps */
1523 backend_modify (EV_A_ fd, anfd->events, 0);
1524 anfd->events = 0;
1525 anfd->handle = handle;
1526 }
1527 }
1528 }
1529#endif
1530
935 for (i = 0; i < fdchangecnt; ++i) 1531 for (i = 0; i < fdchangecnt; ++i)
936 { 1532 {
937 int fd = fdchanges [i]; 1533 int fd = fdchanges [i];
938 ANFD *anfd = anfds + fd; 1534 ANFD *anfd = anfds + fd;
939 ev_io *w; 1535 ev_io *w;
940 1536
941 unsigned char events = 0; 1537 unsigned char o_events = anfd->events;
1538 unsigned char o_reify = anfd->reify;
942 1539
943 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1540 anfd->reify = 0;
944 events |= (unsigned char)w->events;
945 1541
946#if EV_SELECT_IS_WINSOCKET 1542 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
947 if (events)
948 { 1543 {
949 unsigned long arg; 1544 anfd->events = 0;
950 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1545
951 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1546 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1547 anfd->events |= (unsigned char)w->events;
1548
1549 if (o_events != anfd->events)
1550 o_reify = EV__IOFDSET; /* actually |= */
952 } 1551 }
953#endif
954 1552
955 { 1553 if (o_reify & EV__IOFDSET)
956 unsigned char o_events = anfd->events;
957 unsigned char o_reify = anfd->reify;
958
959 anfd->reify = 0;
960 anfd->events = events;
961
962 if (o_events != events || o_reify & EV__IOFDSET)
963 backend_modify (EV_A_ fd, o_events, events); 1554 backend_modify (EV_A_ fd, o_events, anfd->events);
964 }
965 } 1555 }
966 1556
967 fdchangecnt = 0; 1557 fdchangecnt = 0;
968} 1558}
969 1559
… …
981 fdchanges [fdchangecnt - 1] = fd; 1571 fdchanges [fdchangecnt - 1] = fd;
982 } 1572 }
983} 1573}
984 1574
985/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1575/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
986inline_speed void 1576inline_speed void ecb_cold
987fd_kill (EV_P_ int fd) 1577fd_kill (EV_P_ int fd)
988{ 1578{
989 ev_io *w; 1579 ev_io *w;
990 1580
991 while ((w = (ev_io *)anfds [fd].head)) 1581 while ((w = (ev_io *)anfds [fd].head))
… …
994 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1584 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
995 } 1585 }
996} 1586}
997 1587
998/* check whether the given fd is actually valid, for error recovery */ 1588/* check whether the given fd is actually valid, for error recovery */
999inline_size int 1589inline_size int ecb_cold
1000fd_valid (int fd) 1590fd_valid (int fd)
1001{ 1591{
1002#ifdef _WIN32 1592#ifdef _WIN32
1003 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1593 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1004#else 1594#else
1005 return fcntl (fd, F_GETFD) != -1; 1595 return fcntl (fd, F_GETFD) != -1;
1006#endif 1596#endif
1007} 1597}
1008 1598
1009/* called on EBADF to verify fds */ 1599/* called on EBADF to verify fds */
1010static void noinline 1600static void noinline ecb_cold
1011fd_ebadf (EV_P) 1601fd_ebadf (EV_P)
1012{ 1602{
1013 int fd; 1603 int fd;
1014 1604
1015 for (fd = 0; fd < anfdmax; ++fd) 1605 for (fd = 0; fd < anfdmax; ++fd)
… …
1017 if (!fd_valid (fd) && errno == EBADF) 1607 if (!fd_valid (fd) && errno == EBADF)
1018 fd_kill (EV_A_ fd); 1608 fd_kill (EV_A_ fd);
1019} 1609}
1020 1610
1021/* called on ENOMEM in select/poll to kill some fds and retry */ 1611/* called on ENOMEM in select/poll to kill some fds and retry */
1022static void noinline 1612static void noinline ecb_cold
1023fd_enomem (EV_P) 1613fd_enomem (EV_P)
1024{ 1614{
1025 int fd; 1615 int fd;
1026 1616
1027 for (fd = anfdmax; fd--; ) 1617 for (fd = anfdmax; fd--; )
… …
1062} 1652}
1063 1653
1064/*****************************************************************************/ 1654/*****************************************************************************/
1065 1655
1066/* 1656/*
1067 * the heap functions want a real array index. array index 0 uis guaranteed to not 1657 * the heap functions want a real array index. array index 0 is guaranteed to not
1068 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1658 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1069 * the branching factor of the d-tree. 1659 * the branching factor of the d-tree.
1070 */ 1660 */
1071 1661
1072/* 1662/*
… …
1222 1812
1223/*****************************************************************************/ 1813/*****************************************************************************/
1224 1814
1225#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 1815#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1226 1816
1227static void noinline 1817static void noinline ecb_cold
1228evpipe_init (EV_P) 1818evpipe_init (EV_P)
1229{ 1819{
1230 if (!ev_is_active (&pipe_w)) 1820 if (!ev_is_active (&pipe_w))
1231 { 1821 {
1232# if EV_USE_EVENTFD 1822# if EV_USE_EVENTFD
… …
1254 ev_io_start (EV_A_ &pipe_w); 1844 ev_io_start (EV_A_ &pipe_w);
1255 ev_unref (EV_A); /* watcher should not keep loop alive */ 1845 ev_unref (EV_A); /* watcher should not keep loop alive */
1256 } 1846 }
1257} 1847}
1258 1848
1259inline_size void 1849inline_speed void
1260evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1850evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1261{ 1851{
1262 if (!*flag) 1852 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1853
1854 if (expect_true (*flag))
1855 return;
1856
1857 *flag = 1;
1858
1859 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1860
1861 pipe_write_skipped = 1;
1862
1863 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1864
1865 if (pipe_write_wanted)
1263 { 1866 {
1867 int old_errno;
1868
1869 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1870
1264 int old_errno = errno; /* save errno because write might clobber it */ 1871 old_errno = errno; /* save errno because write will clobber it */
1265 char dummy;
1266
1267 *flag = 1;
1268 1872
1269#if EV_USE_EVENTFD 1873#if EV_USE_EVENTFD
1270 if (evfd >= 0) 1874 if (evfd >= 0)
1271 { 1875 {
1272 uint64_t counter = 1; 1876 uint64_t counter = 1;
1273 write (evfd, &counter, sizeof (uint64_t)); 1877 write (evfd, &counter, sizeof (uint64_t));
1274 } 1878 }
1275 else 1879 else
1276#endif 1880#endif
1881 {
1882#ifdef _WIN32
1883 WSABUF buf;
1884 DWORD sent;
1885 buf.buf = &buf;
1886 buf.len = 1;
1887 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1888#else
1277 write (evpipe [1], &dummy, 1); 1889 write (evpipe [1], &(evpipe [1]), 1);
1890#endif
1891 }
1278 1892
1279 errno = old_errno; 1893 errno = old_errno;
1280 } 1894 }
1281} 1895}
1282 1896
… …
1285static void 1899static void
1286pipecb (EV_P_ ev_io *iow, int revents) 1900pipecb (EV_P_ ev_io *iow, int revents)
1287{ 1901{
1288 int i; 1902 int i;
1289 1903
1904 if (revents & EV_READ)
1905 {
1290#if EV_USE_EVENTFD 1906#if EV_USE_EVENTFD
1291 if (evfd >= 0) 1907 if (evfd >= 0)
1292 { 1908 {
1293 uint64_t counter; 1909 uint64_t counter;
1294 read (evfd, &counter, sizeof (uint64_t)); 1910 read (evfd, &counter, sizeof (uint64_t));
1295 } 1911 }
1296 else 1912 else
1297#endif 1913#endif
1298 { 1914 {
1299 char dummy; 1915 char dummy[4];
1916#ifdef _WIN32
1917 WSABUF buf;
1918 DWORD recvd;
1919 buf.buf = dummy;
1920 buf.len = sizeof (dummy);
1921 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0);
1922#else
1300 read (evpipe [0], &dummy, 1); 1923 read (evpipe [0], &dummy, sizeof (dummy));
1924#endif
1925 }
1301 } 1926 }
1302 1927
1928 pipe_write_skipped = 0;
1929
1930 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1931
1932#if EV_SIGNAL_ENABLE
1303 if (sig_pending) 1933 if (sig_pending)
1304 { 1934 {
1305 sig_pending = 0; 1935 sig_pending = 0;
1936
1937 ECB_MEMORY_FENCE_RELEASE;
1306 1938
1307 for (i = EV_NSIG - 1; i--; ) 1939 for (i = EV_NSIG - 1; i--; )
1308 if (expect_false (signals [i].pending)) 1940 if (expect_false (signals [i].pending))
1309 ev_feed_signal_event (EV_A_ i + 1); 1941 ev_feed_signal_event (EV_A_ i + 1);
1310 } 1942 }
1943#endif
1311 1944
1312#if EV_ASYNC_ENABLE 1945#if EV_ASYNC_ENABLE
1313 if (async_pending) 1946 if (async_pending)
1314 { 1947 {
1315 async_pending = 0; 1948 async_pending = 0;
1949
1950 ECB_MEMORY_FENCE_RELEASE;
1316 1951
1317 for (i = asynccnt; i--; ) 1952 for (i = asynccnt; i--; )
1318 if (asyncs [i]->sent) 1953 if (asyncs [i]->sent)
1319 { 1954 {
1320 asyncs [i]->sent = 0; 1955 asyncs [i]->sent = 0;
… …
1324#endif 1959#endif
1325} 1960}
1326 1961
1327/*****************************************************************************/ 1962/*****************************************************************************/
1328 1963
1964void
1965ev_feed_signal (int signum) EV_THROW
1966{
1967#if EV_MULTIPLICITY
1968 EV_P = signals [signum - 1].loop;
1969
1970 if (!EV_A)
1971 return;
1972#endif
1973
1974 if (!ev_active (&pipe_w))
1975 return;
1976
1977 signals [signum - 1].pending = 1;
1978 evpipe_write (EV_A_ &sig_pending);
1979}
1980
1329static void 1981static void
1330ev_sighandler (int signum) 1982ev_sighandler (int signum)
1331{ 1983{
1332#if EV_MULTIPLICITY
1333 EV_P = signals [signum - 1].loop;
1334#endif
1335
1336#ifdef _WIN32 1984#ifdef _WIN32
1337 signal (signum, ev_sighandler); 1985 signal (signum, ev_sighandler);
1338#endif 1986#endif
1339 1987
1340 signals [signum - 1].pending = 1; 1988 ev_feed_signal (signum);
1341 evpipe_write (EV_A_ &sig_pending);
1342} 1989}
1343 1990
1344void noinline 1991void noinline
1345ev_feed_signal_event (EV_P_ int signum) 1992ev_feed_signal_event (EV_P_ int signum) EV_THROW
1346{ 1993{
1347 WL w; 1994 WL w;
1348 1995
1349 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1996 if (expect_false (signum <= 0 || signum > EV_NSIG))
1350 return; 1997 return;
… …
1403child_reap (EV_P_ int chain, int pid, int status) 2050child_reap (EV_P_ int chain, int pid, int status)
1404{ 2051{
1405 ev_child *w; 2052 ev_child *w;
1406 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2053 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1407 2054
1408 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2055 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1409 { 2056 {
1410 if ((w->pid == pid || !w->pid) 2057 if ((w->pid == pid || !w->pid)
1411 && (!traced || (w->flags & 1))) 2058 && (!traced || (w->flags & 1)))
1412 { 2059 {
1413 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2060 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1438 /* make sure we are called again until all children have been reaped */ 2085 /* make sure we are called again until all children have been reaped */
1439 /* we need to do it this way so that the callback gets called before we continue */ 2086 /* we need to do it this way so that the callback gets called before we continue */
1440 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2087 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1441 2088
1442 child_reap (EV_A_ pid, pid, status); 2089 child_reap (EV_A_ pid, pid, status);
1443 if (EV_PID_HASHSIZE > 1) 2090 if ((EV_PID_HASHSIZE) > 1)
1444 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2091 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1445} 2092}
1446 2093
1447#endif 2094#endif
1448 2095
1449/*****************************************************************************/ 2096/*****************************************************************************/
1450 2097
2098#if EV_USE_IOCP
2099# include "ev_iocp.c"
2100#endif
1451#if EV_USE_PORT 2101#if EV_USE_PORT
1452# include "ev_port.c" 2102# include "ev_port.c"
1453#endif 2103#endif
1454#if EV_USE_KQUEUE 2104#if EV_USE_KQUEUE
1455# include "ev_kqueue.c" 2105# include "ev_kqueue.c"
… …
1462#endif 2112#endif
1463#if EV_USE_SELECT 2113#if EV_USE_SELECT
1464# include "ev_select.c" 2114# include "ev_select.c"
1465#endif 2115#endif
1466 2116
1467int 2117int ecb_cold
1468ev_version_major (void) 2118ev_version_major (void) EV_THROW
1469{ 2119{
1470 return EV_VERSION_MAJOR; 2120 return EV_VERSION_MAJOR;
1471} 2121}
1472 2122
1473int 2123int ecb_cold
1474ev_version_minor (void) 2124ev_version_minor (void) EV_THROW
1475{ 2125{
1476 return EV_VERSION_MINOR; 2126 return EV_VERSION_MINOR;
1477} 2127}
1478 2128
1479/* return true if we are running with elevated privileges and should ignore env variables */ 2129/* return true if we are running with elevated privileges and should ignore env variables */
1480int inline_size 2130int inline_size ecb_cold
1481enable_secure (void) 2131enable_secure (void)
1482{ 2132{
1483#ifdef _WIN32 2133#ifdef _WIN32
1484 return 0; 2134 return 0;
1485#else 2135#else
1486 return getuid () != geteuid () 2136 return getuid () != geteuid ()
1487 || getgid () != getegid (); 2137 || getgid () != getegid ();
1488#endif 2138#endif
1489} 2139}
1490 2140
1491unsigned int 2141unsigned int ecb_cold
1492ev_supported_backends (void) 2142ev_supported_backends (void) EV_THROW
1493{ 2143{
1494 unsigned int flags = 0; 2144 unsigned int flags = 0;
1495 2145
1496 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2146 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1497 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2147 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1500 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2150 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1501 2151
1502 return flags; 2152 return flags;
1503} 2153}
1504 2154
1505unsigned int 2155unsigned int ecb_cold
1506ev_recommended_backends (void) 2156ev_recommended_backends (void) EV_THROW
1507{ 2157{
1508 unsigned int flags = ev_supported_backends (); 2158 unsigned int flags = ev_supported_backends ();
1509 2159
1510#ifndef __NetBSD__ 2160#ifndef __NetBSD__
1511 /* kqueue is borked on everything but netbsd apparently */ 2161 /* kqueue is borked on everything but netbsd apparently */
… …
1515#ifdef __APPLE__ 2165#ifdef __APPLE__
1516 /* only select works correctly on that "unix-certified" platform */ 2166 /* only select works correctly on that "unix-certified" platform */
1517 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2167 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1518 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2168 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1519#endif 2169#endif
2170#ifdef __FreeBSD__
2171 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2172#endif
1520 2173
1521 return flags; 2174 return flags;
1522} 2175}
1523 2176
2177unsigned int ecb_cold
2178ev_embeddable_backends (void) EV_THROW
2179{
2180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2181
2182 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2183 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2184 flags &= ~EVBACKEND_EPOLL;
2185
2186 return flags;
2187}
2188
1524unsigned int 2189unsigned int
1525ev_embeddable_backends (void) 2190ev_backend (EV_P) EV_THROW
1526{ 2191{
1527 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2192 return backend;
1528
1529 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1530 /* please fix it and tell me how to detect the fix */
1531 flags &= ~EVBACKEND_EPOLL;
1532
1533 return flags;
1534} 2193}
1535 2194
2195#if EV_FEATURE_API
1536unsigned int 2196unsigned int
1537ev_backend (EV_P) 2197ev_iteration (EV_P) EV_THROW
1538{ 2198{
1539 return backend; 2199 return loop_count;
1540} 2200}
1541 2201
1542#if EV_MINIMAL < 2
1543unsigned int 2202unsigned int
1544ev_loop_count (EV_P) 2203ev_depth (EV_P) EV_THROW
1545{
1546 return loop_count;
1547}
1548
1549unsigned int
1550ev_loop_depth (EV_P)
1551{ 2204{
1552 return loop_depth; 2205 return loop_depth;
1553} 2206}
1554 2207
1555void 2208void
1556ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2209ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1557{ 2210{
1558 io_blocktime = interval; 2211 io_blocktime = interval;
1559} 2212}
1560 2213
1561void 2214void
1562ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2215ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1563{ 2216{
1564 timeout_blocktime = interval; 2217 timeout_blocktime = interval;
1565} 2218}
1566 2219
1567void 2220void
1568ev_set_userdata (EV_P_ void *data) 2221ev_set_userdata (EV_P_ void *data) EV_THROW
1569{ 2222{
1570 userdata = data; 2223 userdata = data;
1571} 2224}
1572 2225
1573void * 2226void *
1574ev_userdata (EV_P) 2227ev_userdata (EV_P) EV_THROW
1575{ 2228{
1576 return userdata; 2229 return userdata;
1577} 2230}
1578 2231
2232void
1579void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2233ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1580{ 2234{
1581 invoke_cb = invoke_pending_cb; 2235 invoke_cb = invoke_pending_cb;
1582} 2236}
1583 2237
2238void
1584void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2239ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1585{ 2240{
1586 release_cb = release; 2241 release_cb = release;
1587 acquire_cb = acquire; 2242 acquire_cb = acquire;
1588} 2243}
1589#endif 2244#endif
1590 2245
1591/* initialise a loop structure, must be zero-initialised */ 2246/* initialise a loop structure, must be zero-initialised */
1592static void noinline 2247static void noinline ecb_cold
1593loop_init (EV_P_ unsigned int flags) 2248loop_init (EV_P_ unsigned int flags) EV_THROW
1594{ 2249{
1595 if (!backend) 2250 if (!backend)
1596 { 2251 {
2252 origflags = flags;
2253
1597#if EV_USE_REALTIME 2254#if EV_USE_REALTIME
1598 if (!have_realtime) 2255 if (!have_realtime)
1599 { 2256 {
1600 struct timespec ts; 2257 struct timespec ts;
1601 2258
… …
1623 if (!(flags & EVFLAG_NOENV) 2280 if (!(flags & EVFLAG_NOENV)
1624 && !enable_secure () 2281 && !enable_secure ()
1625 && getenv ("LIBEV_FLAGS")) 2282 && getenv ("LIBEV_FLAGS"))
1626 flags = atoi (getenv ("LIBEV_FLAGS")); 2283 flags = atoi (getenv ("LIBEV_FLAGS"));
1627 2284
1628 ev_rt_now = ev_time (); 2285 ev_rt_now = ev_time ();
1629 mn_now = get_clock (); 2286 mn_now = get_clock ();
1630 now_floor = mn_now; 2287 now_floor = mn_now;
1631 rtmn_diff = ev_rt_now - mn_now; 2288 rtmn_diff = ev_rt_now - mn_now;
1632#if EV_MINIMAL < 2 2289#if EV_FEATURE_API
1633 invoke_cb = ev_invoke_pending; 2290 invoke_cb = ev_invoke_pending;
1634#endif 2291#endif
1635 2292
1636 io_blocktime = 0.; 2293 io_blocktime = 0.;
1637 timeout_blocktime = 0.; 2294 timeout_blocktime = 0.;
1638 backend = 0; 2295 backend = 0;
1639 backend_fd = -1; 2296 backend_fd = -1;
1640 sig_pending = 0; 2297 sig_pending = 0;
1641#if EV_ASYNC_ENABLE 2298#if EV_ASYNC_ENABLE
1642 async_pending = 0; 2299 async_pending = 0;
1643#endif 2300#endif
2301 pipe_write_skipped = 0;
2302 pipe_write_wanted = 0;
1644#if EV_USE_INOTIFY 2303#if EV_USE_INOTIFY
1645 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2304 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1646#endif 2305#endif
1647#if EV_USE_SIGNALFD 2306#if EV_USE_SIGNALFD
1648 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2307 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1649#endif 2308#endif
1650 2309
1651 if (!(flags & 0x0000ffffU)) 2310 if (!(flags & EVBACKEND_MASK))
1652 flags |= ev_recommended_backends (); 2311 flags |= ev_recommended_backends ();
1653 2312
2313#if EV_USE_IOCP
2314 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2315#endif
1654#if EV_USE_PORT 2316#if EV_USE_PORT
1655 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1656#endif 2318#endif
1657#if EV_USE_KQUEUE 2319#if EV_USE_KQUEUE
1658 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1675#endif 2337#endif
1676 } 2338 }
1677} 2339}
1678 2340
1679/* free up a loop structure */ 2341/* free up a loop structure */
1680static void noinline 2342void ecb_cold
1681loop_destroy (EV_P) 2343ev_loop_destroy (EV_P)
1682{ 2344{
1683 int i; 2345 int i;
2346
2347#if EV_MULTIPLICITY
2348 /* mimic free (0) */
2349 if (!EV_A)
2350 return;
2351#endif
2352
2353#if EV_CLEANUP_ENABLE
2354 /* queue cleanup watchers (and execute them) */
2355 if (expect_false (cleanupcnt))
2356 {
2357 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2358 EV_INVOKE_PENDING;
2359 }
2360#endif
2361
2362#if EV_CHILD_ENABLE
2363 if (ev_is_active (&childev))
2364 {
2365 ev_ref (EV_A); /* child watcher */
2366 ev_signal_stop (EV_A_ &childev);
2367 }
2368#endif
1684 2369
1685 if (ev_is_active (&pipe_w)) 2370 if (ev_is_active (&pipe_w))
1686 { 2371 {
1687 /*ev_ref (EV_A);*/ 2372 /*ev_ref (EV_A);*/
1688 /*ev_io_stop (EV_A_ &pipe_w);*/ 2373 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1710#endif 2395#endif
1711 2396
1712 if (backend_fd >= 0) 2397 if (backend_fd >= 0)
1713 close (backend_fd); 2398 close (backend_fd);
1714 2399
2400#if EV_USE_IOCP
2401 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2402#endif
1715#if EV_USE_PORT 2403#if EV_USE_PORT
1716 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2404 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1717#endif 2405#endif
1718#if EV_USE_KQUEUE 2406#if EV_USE_KQUEUE
1719 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2407 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1746 array_free (periodic, EMPTY); 2434 array_free (periodic, EMPTY);
1747#endif 2435#endif
1748#if EV_FORK_ENABLE 2436#if EV_FORK_ENABLE
1749 array_free (fork, EMPTY); 2437 array_free (fork, EMPTY);
1750#endif 2438#endif
2439#if EV_CLEANUP_ENABLE
2440 array_free (cleanup, EMPTY);
2441#endif
1751 array_free (prepare, EMPTY); 2442 array_free (prepare, EMPTY);
1752 array_free (check, EMPTY); 2443 array_free (check, EMPTY);
1753#if EV_ASYNC_ENABLE 2444#if EV_ASYNC_ENABLE
1754 array_free (async, EMPTY); 2445 array_free (async, EMPTY);
1755#endif 2446#endif
1756 2447
1757 backend = 0; 2448 backend = 0;
2449
2450#if EV_MULTIPLICITY
2451 if (ev_is_default_loop (EV_A))
2452#endif
2453 ev_default_loop_ptr = 0;
2454#if EV_MULTIPLICITY
2455 else
2456 ev_free (EV_A);
2457#endif
1758} 2458}
1759 2459
1760#if EV_USE_INOTIFY 2460#if EV_USE_INOTIFY
1761inline_size void infy_fork (EV_P); 2461inline_size void infy_fork (EV_P);
1762#endif 2462#endif
… …
1777 infy_fork (EV_A); 2477 infy_fork (EV_A);
1778#endif 2478#endif
1779 2479
1780 if (ev_is_active (&pipe_w)) 2480 if (ev_is_active (&pipe_w))
1781 { 2481 {
1782 /* this "locks" the handlers against writing to the pipe */ 2482 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1783 /* while we modify the fd vars */
1784 sig_pending = 1;
1785#if EV_ASYNC_ENABLE
1786 async_pending = 1;
1787#endif
1788 2483
1789 ev_ref (EV_A); 2484 ev_ref (EV_A);
1790 ev_io_stop (EV_A_ &pipe_w); 2485 ev_io_stop (EV_A_ &pipe_w);
1791 2486
1792#if EV_USE_EVENTFD 2487#if EV_USE_EVENTFD
… …
1798 { 2493 {
1799 EV_WIN32_CLOSE_FD (evpipe [0]); 2494 EV_WIN32_CLOSE_FD (evpipe [0]);
1800 EV_WIN32_CLOSE_FD (evpipe [1]); 2495 EV_WIN32_CLOSE_FD (evpipe [1]);
1801 } 2496 }
1802 2497
2498#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1803 evpipe_init (EV_A); 2499 evpipe_init (EV_A);
1804 /* now iterate over everything, in case we missed something */ 2500 /* now iterate over everything, in case we missed something */
1805 pipecb (EV_A_ &pipe_w, EV_READ); 2501 pipecb (EV_A_ &pipe_w, EV_READ);
2502#endif
1806 } 2503 }
1807 2504
1808 postfork = 0; 2505 postfork = 0;
1809} 2506}
1810 2507
1811#if EV_MULTIPLICITY 2508#if EV_MULTIPLICITY
1812 2509
1813struct ev_loop * 2510struct ev_loop * ecb_cold
1814ev_loop_new (unsigned int flags) 2511ev_loop_new (unsigned int flags) EV_THROW
1815{ 2512{
1816 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2513 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1817 2514
1818 memset (EV_A, 0, sizeof (struct ev_loop)); 2515 memset (EV_A, 0, sizeof (struct ev_loop));
1819 loop_init (EV_A_ flags); 2516 loop_init (EV_A_ flags);
1820 2517
1821 if (ev_backend (EV_A)) 2518 if (ev_backend (EV_A))
1822 return EV_A; 2519 return EV_A;
1823 2520
2521 ev_free (EV_A);
1824 return 0; 2522 return 0;
1825} 2523}
1826 2524
1827void
1828ev_loop_destroy (EV_P)
1829{
1830 loop_destroy (EV_A);
1831 ev_free (loop);
1832}
1833
1834void
1835ev_loop_fork (EV_P)
1836{
1837 postfork = 1; /* must be in line with ev_default_fork */
1838}
1839#endif /* multiplicity */ 2525#endif /* multiplicity */
1840 2526
1841#if EV_VERIFY 2527#if EV_VERIFY
1842static void noinline 2528static void noinline ecb_cold
1843verify_watcher (EV_P_ W w) 2529verify_watcher (EV_P_ W w)
1844{ 2530{
1845 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2531 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1846 2532
1847 if (w->pending) 2533 if (w->pending)
1848 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2534 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1849} 2535}
1850 2536
1851static void noinline 2537static void noinline ecb_cold
1852verify_heap (EV_P_ ANHE *heap, int N) 2538verify_heap (EV_P_ ANHE *heap, int N)
1853{ 2539{
1854 int i; 2540 int i;
1855 2541
1856 for (i = HEAP0; i < N + HEAP0; ++i) 2542 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1861 2547
1862 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2548 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1863 } 2549 }
1864} 2550}
1865 2551
1866static void noinline 2552static void noinline ecb_cold
1867array_verify (EV_P_ W *ws, int cnt) 2553array_verify (EV_P_ W *ws, int cnt)
1868{ 2554{
1869 while (cnt--) 2555 while (cnt--)
1870 { 2556 {
1871 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2557 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1872 verify_watcher (EV_A_ ws [cnt]); 2558 verify_watcher (EV_A_ ws [cnt]);
1873 } 2559 }
1874} 2560}
1875#endif 2561#endif
1876 2562
1877#if EV_MINIMAL < 2 2563#if EV_FEATURE_API
1878void 2564void ecb_cold
1879ev_loop_verify (EV_P) 2565ev_verify (EV_P) EV_THROW
1880{ 2566{
1881#if EV_VERIFY 2567#if EV_VERIFY
1882 int i; 2568 int i;
1883 WL w; 2569 WL w, w2;
1884 2570
1885 assert (activecnt >= -1); 2571 assert (activecnt >= -1);
1886 2572
1887 assert (fdchangemax >= fdchangecnt); 2573 assert (fdchangemax >= fdchangecnt);
1888 for (i = 0; i < fdchangecnt; ++i) 2574 for (i = 0; i < fdchangecnt; ++i)
1889 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2575 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1890 2576
1891 assert (anfdmax >= 0); 2577 assert (anfdmax >= 0);
1892 for (i = 0; i < anfdmax; ++i) 2578 for (i = 0; i < anfdmax; ++i)
2579 {
2580 int j = 0;
2581
1893 for (w = anfds [i].head; w; w = w->next) 2582 for (w = w2 = anfds [i].head; w; w = w->next)
1894 { 2583 {
1895 verify_watcher (EV_A_ (W)w); 2584 verify_watcher (EV_A_ (W)w);
2585
2586 if (j++ & 1)
2587 {
2588 assert (("libev: io watcher list contains a loop", w != w2));
2589 w2 = w2->next;
2590 }
2591
1896 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2592 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1897 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2593 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1898 } 2594 }
2595 }
1899 2596
1900 assert (timermax >= timercnt); 2597 assert (timermax >= timercnt);
1901 verify_heap (EV_A_ timers, timercnt); 2598 verify_heap (EV_A_ timers, timercnt);
1902 2599
1903#if EV_PERIODIC_ENABLE 2600#if EV_PERIODIC_ENABLE
… …
1918#if EV_FORK_ENABLE 2615#if EV_FORK_ENABLE
1919 assert (forkmax >= forkcnt); 2616 assert (forkmax >= forkcnt);
1920 array_verify (EV_A_ (W *)forks, forkcnt); 2617 array_verify (EV_A_ (W *)forks, forkcnt);
1921#endif 2618#endif
1922 2619
2620#if EV_CLEANUP_ENABLE
2621 assert (cleanupmax >= cleanupcnt);
2622 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2623#endif
2624
1923#if EV_ASYNC_ENABLE 2625#if EV_ASYNC_ENABLE
1924 assert (asyncmax >= asynccnt); 2626 assert (asyncmax >= asynccnt);
1925 array_verify (EV_A_ (W *)asyncs, asynccnt); 2627 array_verify (EV_A_ (W *)asyncs, asynccnt);
1926#endif 2628#endif
1927 2629
2630#if EV_PREPARE_ENABLE
1928 assert (preparemax >= preparecnt); 2631 assert (preparemax >= preparecnt);
1929 array_verify (EV_A_ (W *)prepares, preparecnt); 2632 array_verify (EV_A_ (W *)prepares, preparecnt);
2633#endif
1930 2634
2635#if EV_CHECK_ENABLE
1931 assert (checkmax >= checkcnt); 2636 assert (checkmax >= checkcnt);
1932 array_verify (EV_A_ (W *)checks, checkcnt); 2637 array_verify (EV_A_ (W *)checks, checkcnt);
2638#endif
1933 2639
1934# if 0 2640# if 0
1935#if EV_CHILD_ENABLE 2641#if EV_CHILD_ENABLE
1936 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2642 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1937 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2643 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1938#endif 2644#endif
1939# endif 2645# endif
1940#endif 2646#endif
1941} 2647}
1942#endif 2648#endif
1943 2649
1944#if EV_MULTIPLICITY 2650#if EV_MULTIPLICITY
1945struct ev_loop * 2651struct ev_loop * ecb_cold
1946ev_default_loop_init (unsigned int flags)
1947#else 2652#else
1948int 2653int
2654#endif
1949ev_default_loop (unsigned int flags) 2655ev_default_loop (unsigned int flags) EV_THROW
1950#endif
1951{ 2656{
1952 if (!ev_default_loop_ptr) 2657 if (!ev_default_loop_ptr)
1953 { 2658 {
1954#if EV_MULTIPLICITY 2659#if EV_MULTIPLICITY
1955 EV_P = ev_default_loop_ptr = &default_loop_struct; 2660 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1974 2679
1975 return ev_default_loop_ptr; 2680 return ev_default_loop_ptr;
1976} 2681}
1977 2682
1978void 2683void
1979ev_default_destroy (void) 2684ev_loop_fork (EV_P) EV_THROW
1980{ 2685{
1981#if EV_MULTIPLICITY
1982 EV_P = ev_default_loop_ptr;
1983#endif
1984
1985 ev_default_loop_ptr = 0;
1986
1987#if EV_CHILD_ENABLE
1988 ev_ref (EV_A); /* child watcher */
1989 ev_signal_stop (EV_A_ &childev);
1990#endif
1991
1992 loop_destroy (EV_A);
1993}
1994
1995void
1996ev_default_fork (void)
1997{
1998#if EV_MULTIPLICITY
1999 EV_P = ev_default_loop_ptr;
2000#endif
2001
2002 postfork = 1; /* must be in line with ev_loop_fork */ 2686 postfork = 1; /* must be in line with ev_default_fork */
2003} 2687}
2004 2688
2005/*****************************************************************************/ 2689/*****************************************************************************/
2006 2690
2007void 2691void
… …
2009{ 2693{
2010 EV_CB_INVOKE ((W)w, revents); 2694 EV_CB_INVOKE ((W)w, revents);
2011} 2695}
2012 2696
2013unsigned int 2697unsigned int
2014ev_pending_count (EV_P) 2698ev_pending_count (EV_P) EV_THROW
2015{ 2699{
2016 int pri; 2700 int pri;
2017 unsigned int count = 0; 2701 unsigned int count = 0;
2018 2702
2019 for (pri = NUMPRI; pri--; ) 2703 for (pri = NUMPRI; pri--; )
… …
2023} 2707}
2024 2708
2025void noinline 2709void noinline
2026ev_invoke_pending (EV_P) 2710ev_invoke_pending (EV_P)
2027{ 2711{
2028 int pri; 2712 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2029
2030 for (pri = NUMPRI; pri--; )
2031 while (pendingcnt [pri]) 2713 while (pendingcnt [pendingpri])
2032 { 2714 {
2033 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2715 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2034
2035 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2036 /* ^ this is no longer true, as pending_w could be here */
2037 2716
2038 p->w->pending = 0; 2717 p->w->pending = 0;
2039 EV_CB_INVOKE (p->w, p->events); 2718 EV_CB_INVOKE (p->w, p->events);
2040 EV_FREQUENT_CHECK; 2719 EV_FREQUENT_CHECK;
2041 } 2720 }
… …
2098 EV_FREQUENT_CHECK; 2777 EV_FREQUENT_CHECK;
2099 feed_reverse (EV_A_ (W)w); 2778 feed_reverse (EV_A_ (W)w);
2100 } 2779 }
2101 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2780 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2102 2781
2103 feed_reverse_done (EV_A_ EV_TIMEOUT); 2782 feed_reverse_done (EV_A_ EV_TIMER);
2104 } 2783 }
2105} 2784}
2106 2785
2107#if EV_PERIODIC_ENABLE 2786#if EV_PERIODIC_ENABLE
2787
2788static void noinline
2789periodic_recalc (EV_P_ ev_periodic *w)
2790{
2791 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2792 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2793
2794 /* the above almost always errs on the low side */
2795 while (at <= ev_rt_now)
2796 {
2797 ev_tstamp nat = at + w->interval;
2798
2799 /* when resolution fails us, we use ev_rt_now */
2800 if (expect_false (nat == at))
2801 {
2802 at = ev_rt_now;
2803 break;
2804 }
2805
2806 at = nat;
2807 }
2808
2809 ev_at (w) = at;
2810}
2811
2108/* make periodics pending */ 2812/* make periodics pending */
2109inline_size void 2813inline_size void
2110periodics_reify (EV_P) 2814periodics_reify (EV_P)
2111{ 2815{
2112 EV_FREQUENT_CHECK; 2816 EV_FREQUENT_CHECK;
… …
2131 ANHE_at_cache (periodics [HEAP0]); 2835 ANHE_at_cache (periodics [HEAP0]);
2132 downheap (periodics, periodiccnt, HEAP0); 2836 downheap (periodics, periodiccnt, HEAP0);
2133 } 2837 }
2134 else if (w->interval) 2838 else if (w->interval)
2135 { 2839 {
2136 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2840 periodic_recalc (EV_A_ w);
2137 /* if next trigger time is not sufficiently in the future, put it there */
2138 /* this might happen because of floating point inexactness */
2139 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2140 {
2141 ev_at (w) += w->interval;
2142
2143 /* if interval is unreasonably low we might still have a time in the past */
2144 /* so correct this. this will make the periodic very inexact, but the user */
2145 /* has effectively asked to get triggered more often than possible */
2146 if (ev_at (w) < ev_rt_now)
2147 ev_at (w) = ev_rt_now;
2148 }
2149
2150 ANHE_at_cache (periodics [HEAP0]); 2841 ANHE_at_cache (periodics [HEAP0]);
2151 downheap (periodics, periodiccnt, HEAP0); 2842 downheap (periodics, periodiccnt, HEAP0);
2152 } 2843 }
2153 else 2844 else
2154 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2845 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2161 feed_reverse_done (EV_A_ EV_PERIODIC); 2852 feed_reverse_done (EV_A_ EV_PERIODIC);
2162 } 2853 }
2163} 2854}
2164 2855
2165/* simply recalculate all periodics */ 2856/* simply recalculate all periodics */
2166/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2857/* TODO: maybe ensure that at least one event happens when jumping forward? */
2167static void noinline 2858static void noinline ecb_cold
2168periodics_reschedule (EV_P) 2859periodics_reschedule (EV_P)
2169{ 2860{
2170 int i; 2861 int i;
2171 2862
2172 /* adjust periodics after time jump */ 2863 /* adjust periodics after time jump */
… …
2175 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2866 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2176 2867
2177 if (w->reschedule_cb) 2868 if (w->reschedule_cb)
2178 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2869 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2179 else if (w->interval) 2870 else if (w->interval)
2180 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2871 periodic_recalc (EV_A_ w);
2181 2872
2182 ANHE_at_cache (periodics [i]); 2873 ANHE_at_cache (periodics [i]);
2183 } 2874 }
2184 2875
2185 reheap (periodics, periodiccnt); 2876 reheap (periodics, periodiccnt);
2186} 2877}
2187#endif 2878#endif
2188 2879
2189/* adjust all timers by a given offset */ 2880/* adjust all timers by a given offset */
2190static void noinline 2881static void noinline ecb_cold
2191timers_reschedule (EV_P_ ev_tstamp adjust) 2882timers_reschedule (EV_P_ ev_tstamp adjust)
2192{ 2883{
2193 int i; 2884 int i;
2194 2885
2195 for (i = 0; i < timercnt; ++i) 2886 for (i = 0; i < timercnt; ++i)
… …
2232 * doesn't hurt either as we only do this on time-jumps or 2923 * doesn't hurt either as we only do this on time-jumps or
2233 * in the unlikely event of having been preempted here. 2924 * in the unlikely event of having been preempted here.
2234 */ 2925 */
2235 for (i = 4; --i; ) 2926 for (i = 4; --i; )
2236 { 2927 {
2928 ev_tstamp diff;
2237 rtmn_diff = ev_rt_now - mn_now; 2929 rtmn_diff = ev_rt_now - mn_now;
2238 2930
2931 diff = odiff - rtmn_diff;
2932
2239 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2933 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2240 return; /* all is well */ 2934 return; /* all is well */
2241 2935
2242 ev_rt_now = ev_time (); 2936 ev_rt_now = ev_time ();
2243 mn_now = get_clock (); 2937 mn_now = get_clock ();
2244 now_floor = mn_now; 2938 now_floor = mn_now;
… …
2266 2960
2267 mn_now = ev_rt_now; 2961 mn_now = ev_rt_now;
2268 } 2962 }
2269} 2963}
2270 2964
2271void 2965int
2272ev_loop (EV_P_ int flags) 2966ev_run (EV_P_ int flags)
2273{ 2967{
2274#if EV_MINIMAL < 2 2968#if EV_FEATURE_API
2275 ++loop_depth; 2969 ++loop_depth;
2276#endif 2970#endif
2277 2971
2278 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2972 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2279 2973
2280 loop_done = EVUNLOOP_CANCEL; 2974 loop_done = EVBREAK_CANCEL;
2281 2975
2282 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2976 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2283 2977
2284 do 2978 do
2285 { 2979 {
2286#if EV_VERIFY >= 2 2980#if EV_VERIFY >= 2
2287 ev_loop_verify (EV_A); 2981 ev_verify (EV_A);
2288#endif 2982#endif
2289 2983
2290#ifndef _WIN32 2984#ifndef _WIN32
2291 if (expect_false (curpid)) /* penalise the forking check even more */ 2985 if (expect_false (curpid)) /* penalise the forking check even more */
2292 if (expect_false (getpid () != curpid)) 2986 if (expect_false (getpid () != curpid))
… …
2304 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2998 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2305 EV_INVOKE_PENDING; 2999 EV_INVOKE_PENDING;
2306 } 3000 }
2307#endif 3001#endif
2308 3002
3003#if EV_PREPARE_ENABLE
2309 /* queue prepare watchers (and execute them) */ 3004 /* queue prepare watchers (and execute them) */
2310 if (expect_false (preparecnt)) 3005 if (expect_false (preparecnt))
2311 { 3006 {
2312 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3007 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2313 EV_INVOKE_PENDING; 3008 EV_INVOKE_PENDING;
2314 } 3009 }
3010#endif
2315 3011
2316 if (expect_false (loop_done)) 3012 if (expect_false (loop_done))
2317 break; 3013 break;
2318 3014
2319 /* we might have forked, so reify kernel state if necessary */ 3015 /* we might have forked, so reify kernel state if necessary */
… …
2326 /* calculate blocking time */ 3022 /* calculate blocking time */
2327 { 3023 {
2328 ev_tstamp waittime = 0.; 3024 ev_tstamp waittime = 0.;
2329 ev_tstamp sleeptime = 0.; 3025 ev_tstamp sleeptime = 0.;
2330 3026
3027 /* remember old timestamp for io_blocktime calculation */
3028 ev_tstamp prev_mn_now = mn_now;
3029
3030 /* update time to cancel out callback processing overhead */
3031 time_update (EV_A_ 1e100);
3032
3033 /* from now on, we want a pipe-wake-up */
3034 pipe_write_wanted = 1;
3035
3036 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3037
2331 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3038 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2332 { 3039 {
2333 /* remember old timestamp for io_blocktime calculation */
2334 ev_tstamp prev_mn_now = mn_now;
2335
2336 /* update time to cancel out callback processing overhead */
2337 time_update (EV_A_ 1e100);
2338
2339 waittime = MAX_BLOCKTIME; 3040 waittime = MAX_BLOCKTIME;
2340 3041
2341 if (timercnt) 3042 if (timercnt)
2342 { 3043 {
2343 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3044 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2344 if (waittime > to) waittime = to; 3045 if (waittime > to) waittime = to;
2345 } 3046 }
2346 3047
2347#if EV_PERIODIC_ENABLE 3048#if EV_PERIODIC_ENABLE
2348 if (periodiccnt) 3049 if (periodiccnt)
2349 { 3050 {
2350 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3051 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2351 if (waittime > to) waittime = to; 3052 if (waittime > to) waittime = to;
2352 } 3053 }
2353#endif 3054#endif
2354 3055
2355 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3056 /* don't let timeouts decrease the waittime below timeout_blocktime */
2356 if (expect_false (waittime < timeout_blocktime)) 3057 if (expect_false (waittime < timeout_blocktime))
2357 waittime = timeout_blocktime; 3058 waittime = timeout_blocktime;
3059
3060 /* at this point, we NEED to wait, so we have to ensure */
3061 /* to pass a minimum nonzero value to the backend */
3062 if (expect_false (waittime < backend_mintime))
3063 waittime = backend_mintime;
2358 3064
2359 /* extra check because io_blocktime is commonly 0 */ 3065 /* extra check because io_blocktime is commonly 0 */
2360 if (expect_false (io_blocktime)) 3066 if (expect_false (io_blocktime))
2361 { 3067 {
2362 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3068 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2363 3069
2364 if (sleeptime > waittime - backend_fudge) 3070 if (sleeptime > waittime - backend_mintime)
2365 sleeptime = waittime - backend_fudge; 3071 sleeptime = waittime - backend_mintime;
2366 3072
2367 if (expect_true (sleeptime > 0.)) 3073 if (expect_true (sleeptime > 0.))
2368 { 3074 {
2369 ev_sleep (sleeptime); 3075 ev_sleep (sleeptime);
2370 waittime -= sleeptime; 3076 waittime -= sleeptime;
2371 } 3077 }
2372 } 3078 }
2373 } 3079 }
2374 3080
2375#if EV_MINIMAL < 2 3081#if EV_FEATURE_API
2376 ++loop_count; 3082 ++loop_count;
2377#endif 3083#endif
2378 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3084 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2379 backend_poll (EV_A_ waittime); 3085 backend_poll (EV_A_ waittime);
2380 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3086 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3087
3088 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3089
3090 if (pipe_write_skipped)
3091 {
3092 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3093 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3094 }
3095
2381 3096
2382 /* update ev_rt_now, do magic */ 3097 /* update ev_rt_now, do magic */
2383 time_update (EV_A_ waittime + sleeptime); 3098 time_update (EV_A_ waittime + sleeptime);
2384 } 3099 }
2385 3100
… …
2392#if EV_IDLE_ENABLE 3107#if EV_IDLE_ENABLE
2393 /* queue idle watchers unless other events are pending */ 3108 /* queue idle watchers unless other events are pending */
2394 idle_reify (EV_A); 3109 idle_reify (EV_A);
2395#endif 3110#endif
2396 3111
3112#if EV_CHECK_ENABLE
2397 /* queue check watchers, to be executed first */ 3113 /* queue check watchers, to be executed first */
2398 if (expect_false (checkcnt)) 3114 if (expect_false (checkcnt))
2399 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3115 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3116#endif
2400 3117
2401 EV_INVOKE_PENDING; 3118 EV_INVOKE_PENDING;
2402 } 3119 }
2403 while (expect_true ( 3120 while (expect_true (
2404 activecnt 3121 activecnt
2405 && !loop_done 3122 && !loop_done
2406 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3123 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2407 )); 3124 ));
2408 3125
2409 if (loop_done == EVUNLOOP_ONE) 3126 if (loop_done == EVBREAK_ONE)
2410 loop_done = EVUNLOOP_CANCEL; 3127 loop_done = EVBREAK_CANCEL;
2411 3128
2412#if EV_MINIMAL < 2 3129#if EV_FEATURE_API
2413 --loop_depth; 3130 --loop_depth;
2414#endif 3131#endif
3132
3133 return activecnt;
2415} 3134}
2416 3135
2417void 3136void
2418ev_unloop (EV_P_ int how) 3137ev_break (EV_P_ int how) EV_THROW
2419{ 3138{
2420 loop_done = how; 3139 loop_done = how;
2421} 3140}
2422 3141
2423void 3142void
2424ev_ref (EV_P) 3143ev_ref (EV_P) EV_THROW
2425{ 3144{
2426 ++activecnt; 3145 ++activecnt;
2427} 3146}
2428 3147
2429void 3148void
2430ev_unref (EV_P) 3149ev_unref (EV_P) EV_THROW
2431{ 3150{
2432 --activecnt; 3151 --activecnt;
2433} 3152}
2434 3153
2435void 3154void
2436ev_now_update (EV_P) 3155ev_now_update (EV_P) EV_THROW
2437{ 3156{
2438 time_update (EV_A_ 1e100); 3157 time_update (EV_A_ 1e100);
2439} 3158}
2440 3159
2441void 3160void
2442ev_suspend (EV_P) 3161ev_suspend (EV_P) EV_THROW
2443{ 3162{
2444 ev_now_update (EV_A); 3163 ev_now_update (EV_A);
2445} 3164}
2446 3165
2447void 3166void
2448ev_resume (EV_P) 3167ev_resume (EV_P) EV_THROW
2449{ 3168{
2450 ev_tstamp mn_prev = mn_now; 3169 ev_tstamp mn_prev = mn_now;
2451 3170
2452 ev_now_update (EV_A); 3171 ev_now_update (EV_A);
2453 timers_reschedule (EV_A_ mn_now - mn_prev); 3172 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2492 w->pending = 0; 3211 w->pending = 0;
2493 } 3212 }
2494} 3213}
2495 3214
2496int 3215int
2497ev_clear_pending (EV_P_ void *w) 3216ev_clear_pending (EV_P_ void *w) EV_THROW
2498{ 3217{
2499 W w_ = (W)w; 3218 W w_ = (W)w;
2500 int pending = w_->pending; 3219 int pending = w_->pending;
2501 3220
2502 if (expect_true (pending)) 3221 if (expect_true (pending))
… …
2535} 3254}
2536 3255
2537/*****************************************************************************/ 3256/*****************************************************************************/
2538 3257
2539void noinline 3258void noinline
2540ev_io_start (EV_P_ ev_io *w) 3259ev_io_start (EV_P_ ev_io *w) EV_THROW
2541{ 3260{
2542 int fd = w->fd; 3261 int fd = w->fd;
2543 3262
2544 if (expect_false (ev_is_active (w))) 3263 if (expect_false (ev_is_active (w)))
2545 return; 3264 return;
… …
2551 3270
2552 ev_start (EV_A_ (W)w, 1); 3271 ev_start (EV_A_ (W)w, 1);
2553 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3272 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2554 wlist_add (&anfds[fd].head, (WL)w); 3273 wlist_add (&anfds[fd].head, (WL)w);
2555 3274
3275 /* common bug, apparently */
3276 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3277
2556 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3278 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2557 w->events &= ~EV__IOFDSET; 3279 w->events &= ~EV__IOFDSET;
2558 3280
2559 EV_FREQUENT_CHECK; 3281 EV_FREQUENT_CHECK;
2560} 3282}
2561 3283
2562void noinline 3284void noinline
2563ev_io_stop (EV_P_ ev_io *w) 3285ev_io_stop (EV_P_ ev_io *w) EV_THROW
2564{ 3286{
2565 clear_pending (EV_A_ (W)w); 3287 clear_pending (EV_A_ (W)w);
2566 if (expect_false (!ev_is_active (w))) 3288 if (expect_false (!ev_is_active (w)))
2567 return; 3289 return;
2568 3290
… …
2571 EV_FREQUENT_CHECK; 3293 EV_FREQUENT_CHECK;
2572 3294
2573 wlist_del (&anfds[w->fd].head, (WL)w); 3295 wlist_del (&anfds[w->fd].head, (WL)w);
2574 ev_stop (EV_A_ (W)w); 3296 ev_stop (EV_A_ (W)w);
2575 3297
2576 fd_change (EV_A_ w->fd, 1); 3298 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2577 3299
2578 EV_FREQUENT_CHECK; 3300 EV_FREQUENT_CHECK;
2579} 3301}
2580 3302
2581void noinline 3303void noinline
2582ev_timer_start (EV_P_ ev_timer *w) 3304ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2583{ 3305{
2584 if (expect_false (ev_is_active (w))) 3306 if (expect_false (ev_is_active (w)))
2585 return; 3307 return;
2586 3308
2587 ev_at (w) += mn_now; 3309 ev_at (w) += mn_now;
… …
2601 3323
2602 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3324 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2603} 3325}
2604 3326
2605void noinline 3327void noinline
2606ev_timer_stop (EV_P_ ev_timer *w) 3328ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2607{ 3329{
2608 clear_pending (EV_A_ (W)w); 3330 clear_pending (EV_A_ (W)w);
2609 if (expect_false (!ev_is_active (w))) 3331 if (expect_false (!ev_is_active (w)))
2610 return; 3332 return;
2611 3333
… …
2631 3353
2632 EV_FREQUENT_CHECK; 3354 EV_FREQUENT_CHECK;
2633} 3355}
2634 3356
2635void noinline 3357void noinline
2636ev_timer_again (EV_P_ ev_timer *w) 3358ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2637{ 3359{
2638 EV_FREQUENT_CHECK; 3360 EV_FREQUENT_CHECK;
3361
3362 clear_pending (EV_A_ (W)w);
2639 3363
2640 if (ev_is_active (w)) 3364 if (ev_is_active (w))
2641 { 3365 {
2642 if (w->repeat) 3366 if (w->repeat)
2643 { 3367 {
… …
2656 3380
2657 EV_FREQUENT_CHECK; 3381 EV_FREQUENT_CHECK;
2658} 3382}
2659 3383
2660ev_tstamp 3384ev_tstamp
2661ev_timer_remaining (EV_P_ ev_timer *w) 3385ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2662{ 3386{
2663 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3387 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2664} 3388}
2665 3389
2666#if EV_PERIODIC_ENABLE 3390#if EV_PERIODIC_ENABLE
2667void noinline 3391void noinline
2668ev_periodic_start (EV_P_ ev_periodic *w) 3392ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2669{ 3393{
2670 if (expect_false (ev_is_active (w))) 3394 if (expect_false (ev_is_active (w)))
2671 return; 3395 return;
2672 3396
2673 if (w->reschedule_cb) 3397 if (w->reschedule_cb)
2674 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3398 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2675 else if (w->interval) 3399 else if (w->interval)
2676 { 3400 {
2677 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3401 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2678 /* this formula differs from the one in periodic_reify because we do not always round up */ 3402 periodic_recalc (EV_A_ w);
2679 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2680 } 3403 }
2681 else 3404 else
2682 ev_at (w) = w->offset; 3405 ev_at (w) = w->offset;
2683 3406
2684 EV_FREQUENT_CHECK; 3407 EV_FREQUENT_CHECK;
… …
2694 3417
2695 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3418 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2696} 3419}
2697 3420
2698void noinline 3421void noinline
2699ev_periodic_stop (EV_P_ ev_periodic *w) 3422ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2700{ 3423{
2701 clear_pending (EV_A_ (W)w); 3424 clear_pending (EV_A_ (W)w);
2702 if (expect_false (!ev_is_active (w))) 3425 if (expect_false (!ev_is_active (w)))
2703 return; 3426 return;
2704 3427
… …
2722 3445
2723 EV_FREQUENT_CHECK; 3446 EV_FREQUENT_CHECK;
2724} 3447}
2725 3448
2726void noinline 3449void noinline
2727ev_periodic_again (EV_P_ ev_periodic *w) 3450ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2728{ 3451{
2729 /* TODO: use adjustheap and recalculation */ 3452 /* TODO: use adjustheap and recalculation */
2730 ev_periodic_stop (EV_A_ w); 3453 ev_periodic_stop (EV_A_ w);
2731 ev_periodic_start (EV_A_ w); 3454 ev_periodic_start (EV_A_ w);
2732} 3455}
… …
2737#endif 3460#endif
2738 3461
2739#if EV_SIGNAL_ENABLE 3462#if EV_SIGNAL_ENABLE
2740 3463
2741void noinline 3464void noinline
2742ev_signal_start (EV_P_ ev_signal *w) 3465ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2743{ 3466{
2744 if (expect_false (ev_is_active (w))) 3467 if (expect_false (ev_is_active (w)))
2745 return; 3468 return;
2746 3469
2747 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3470 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2805 sa.sa_handler = ev_sighandler; 3528 sa.sa_handler = ev_sighandler;
2806 sigfillset (&sa.sa_mask); 3529 sigfillset (&sa.sa_mask);
2807 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3530 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2808 sigaction (w->signum, &sa, 0); 3531 sigaction (w->signum, &sa, 0);
2809 3532
3533 if (origflags & EVFLAG_NOSIGMASK)
3534 {
2810 sigemptyset (&sa.sa_mask); 3535 sigemptyset (&sa.sa_mask);
2811 sigaddset (&sa.sa_mask, w->signum); 3536 sigaddset (&sa.sa_mask, w->signum);
2812 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3537 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3538 }
2813#endif 3539#endif
2814 } 3540 }
2815 3541
2816 EV_FREQUENT_CHECK; 3542 EV_FREQUENT_CHECK;
2817} 3543}
2818 3544
2819void noinline 3545void noinline
2820ev_signal_stop (EV_P_ ev_signal *w) 3546ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2821{ 3547{
2822 clear_pending (EV_A_ (W)w); 3548 clear_pending (EV_A_ (W)w);
2823 if (expect_false (!ev_is_active (w))) 3549 if (expect_false (!ev_is_active (w)))
2824 return; 3550 return;
2825 3551
… …
2856#endif 3582#endif
2857 3583
2858#if EV_CHILD_ENABLE 3584#if EV_CHILD_ENABLE
2859 3585
2860void 3586void
2861ev_child_start (EV_P_ ev_child *w) 3587ev_child_start (EV_P_ ev_child *w) EV_THROW
2862{ 3588{
2863#if EV_MULTIPLICITY 3589#if EV_MULTIPLICITY
2864 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3590 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2865#endif 3591#endif
2866 if (expect_false (ev_is_active (w))) 3592 if (expect_false (ev_is_active (w)))
2867 return; 3593 return;
2868 3594
2869 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
2870 3596
2871 ev_start (EV_A_ (W)w, 1); 3597 ev_start (EV_A_ (W)w, 1);
2872 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3598 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2873 3599
2874 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
2875} 3601}
2876 3602
2877void 3603void
2878ev_child_stop (EV_P_ ev_child *w) 3604ev_child_stop (EV_P_ ev_child *w) EV_THROW
2879{ 3605{
2880 clear_pending (EV_A_ (W)w); 3606 clear_pending (EV_A_ (W)w);
2881 if (expect_false (!ev_is_active (w))) 3607 if (expect_false (!ev_is_active (w)))
2882 return; 3608 return;
2883 3609
2884 EV_FREQUENT_CHECK; 3610 EV_FREQUENT_CHECK;
2885 3611
2886 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3612 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2887 ev_stop (EV_A_ (W)w); 3613 ev_stop (EV_A_ (W)w);
2888 3614
2889 EV_FREQUENT_CHECK; 3615 EV_FREQUENT_CHECK;
2890} 3616}
2891 3617
… …
2958 if (!pend || pend == path) 3684 if (!pend || pend == path)
2959 break; 3685 break;
2960 3686
2961 *pend = 0; 3687 *pend = 0;
2962 w->wd = inotify_add_watch (fs_fd, path, mask); 3688 w->wd = inotify_add_watch (fs_fd, path, mask);
2963 } 3689 }
2964 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3690 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2965 } 3691 }
2966 } 3692 }
2967 3693
2968 if (w->wd >= 0) 3694 if (w->wd >= 0)
2969 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3695 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2970 3696
2971 /* now re-arm timer, if required */ 3697 /* now re-arm timer, if required */
2972 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3698 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2973 ev_timer_again (EV_A_ &w->timer); 3699 ev_timer_again (EV_A_ &w->timer);
2974 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3700 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2982 3708
2983 if (wd < 0) 3709 if (wd < 0)
2984 return; 3710 return;
2985 3711
2986 w->wd = -2; 3712 w->wd = -2;
2987 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3713 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2988 wlist_del (&fs_hash [slot].head, (WL)w); 3714 wlist_del (&fs_hash [slot].head, (WL)w);
2989 3715
2990 /* remove this watcher, if others are watching it, they will rearm */ 3716 /* remove this watcher, if others are watching it, they will rearm */
2991 inotify_rm_watch (fs_fd, wd); 3717 inotify_rm_watch (fs_fd, wd);
2992} 3718}
… …
2994static void noinline 3720static void noinline
2995infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3721infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2996{ 3722{
2997 if (slot < 0) 3723 if (slot < 0)
2998 /* overflow, need to check for all hash slots */ 3724 /* overflow, need to check for all hash slots */
2999 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3725 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3000 infy_wd (EV_A_ slot, wd, ev); 3726 infy_wd (EV_A_ slot, wd, ev);
3001 else 3727 else
3002 { 3728 {
3003 WL w_; 3729 WL w_;
3004 3730
3005 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3731 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
3006 { 3732 {
3007 ev_stat *w = (ev_stat *)w_; 3733 ev_stat *w = (ev_stat *)w_;
3008 w_ = w_->next; /* lets us remove this watcher and all before it */ 3734 w_ = w_->next; /* lets us remove this watcher and all before it */
3009 3735
3010 if (w->wd == wd || wd == -1) 3736 if (w->wd == wd || wd == -1)
3011 { 3737 {
3012 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3738 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
3013 { 3739 {
3014 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3740 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
3015 w->wd = -1; 3741 w->wd = -1;
3016 infy_add (EV_A_ w); /* re-add, no matter what */ 3742 infy_add (EV_A_ w); /* re-add, no matter what */
3017 } 3743 }
3018 3744
3019 stat_timer_cb (EV_A_ &w->timer, 0); 3745 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3035 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3761 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3036 ofs += sizeof (struct inotify_event) + ev->len; 3762 ofs += sizeof (struct inotify_event) + ev->len;
3037 } 3763 }
3038} 3764}
3039 3765
3040inline_size unsigned int
3041ev_linux_version (void)
3042{
3043 struct utsname buf;
3044 unsigned int v;
3045 int i;
3046 char *p = buf.release;
3047
3048 if (uname (&buf))
3049 return 0;
3050
3051 for (i = 3+1; --i; )
3052 {
3053 unsigned int c = 0;
3054
3055 for (;;)
3056 {
3057 if (*p >= '0' && *p <= '9')
3058 c = c * 10 + *p++ - '0';
3059 else
3060 {
3061 p += *p == '.';
3062 break;
3063 }
3064 }
3065
3066 v = (v << 8) | c;
3067 }
3068
3069 return v;
3070}
3071
3072inline_size void 3766inline_size void ecb_cold
3073ev_check_2625 (EV_P) 3767ev_check_2625 (EV_P)
3074{ 3768{
3075 /* kernels < 2.6.25 are borked 3769 /* kernels < 2.6.25 are borked
3076 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3770 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3077 */ 3771 */
… …
3082} 3776}
3083 3777
3084inline_size int 3778inline_size int
3085infy_newfd (void) 3779infy_newfd (void)
3086{ 3780{
3087#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3781#if defined IN_CLOEXEC && defined IN_NONBLOCK
3088 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3782 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3089 if (fd >= 0) 3783 if (fd >= 0)
3090 return fd; 3784 return fd;
3091#endif 3785#endif
3092 return inotify_init (); 3786 return inotify_init ();
… …
3133 ev_io_set (&fs_w, fs_fd, EV_READ); 3827 ev_io_set (&fs_w, fs_fd, EV_READ);
3134 ev_io_start (EV_A_ &fs_w); 3828 ev_io_start (EV_A_ &fs_w);
3135 ev_unref (EV_A); 3829 ev_unref (EV_A);
3136 } 3830 }
3137 3831
3138 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3832 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3139 { 3833 {
3140 WL w_ = fs_hash [slot].head; 3834 WL w_ = fs_hash [slot].head;
3141 fs_hash [slot].head = 0; 3835 fs_hash [slot].head = 0;
3142 3836
3143 while (w_) 3837 while (w_)
… …
3167#else 3861#else
3168# define EV_LSTAT(p,b) lstat (p, b) 3862# define EV_LSTAT(p,b) lstat (p, b)
3169#endif 3863#endif
3170 3864
3171void 3865void
3172ev_stat_stat (EV_P_ ev_stat *w) 3866ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3173{ 3867{
3174 if (lstat (w->path, &w->attr) < 0) 3868 if (lstat (w->path, &w->attr) < 0)
3175 w->attr.st_nlink = 0; 3869 w->attr.st_nlink = 0;
3176 else if (!w->attr.st_nlink) 3870 else if (!w->attr.st_nlink)
3177 w->attr.st_nlink = 1; 3871 w->attr.st_nlink = 1;
… …
3216 ev_feed_event (EV_A_ w, EV_STAT); 3910 ev_feed_event (EV_A_ w, EV_STAT);
3217 } 3911 }
3218} 3912}
3219 3913
3220void 3914void
3221ev_stat_start (EV_P_ ev_stat *w) 3915ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3222{ 3916{
3223 if (expect_false (ev_is_active (w))) 3917 if (expect_false (ev_is_active (w)))
3224 return; 3918 return;
3225 3919
3226 ev_stat_stat (EV_A_ w); 3920 ev_stat_stat (EV_A_ w);
… …
3247 3941
3248 EV_FREQUENT_CHECK; 3942 EV_FREQUENT_CHECK;
3249} 3943}
3250 3944
3251void 3945void
3252ev_stat_stop (EV_P_ ev_stat *w) 3946ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3253{ 3947{
3254 clear_pending (EV_A_ (W)w); 3948 clear_pending (EV_A_ (W)w);
3255 if (expect_false (!ev_is_active (w))) 3949 if (expect_false (!ev_is_active (w)))
3256 return; 3950 return;
3257 3951
… …
3273} 3967}
3274#endif 3968#endif
3275 3969
3276#if EV_IDLE_ENABLE 3970#if EV_IDLE_ENABLE
3277void 3971void
3278ev_idle_start (EV_P_ ev_idle *w) 3972ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3279{ 3973{
3280 if (expect_false (ev_is_active (w))) 3974 if (expect_false (ev_is_active (w)))
3281 return; 3975 return;
3282 3976
3283 pri_adjust (EV_A_ (W)w); 3977 pri_adjust (EV_A_ (W)w);
… …
3296 3990
3297 EV_FREQUENT_CHECK; 3991 EV_FREQUENT_CHECK;
3298} 3992}
3299 3993
3300void 3994void
3301ev_idle_stop (EV_P_ ev_idle *w) 3995ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3302{ 3996{
3303 clear_pending (EV_A_ (W)w); 3997 clear_pending (EV_A_ (W)w);
3304 if (expect_false (!ev_is_active (w))) 3998 if (expect_false (!ev_is_active (w)))
3305 return; 3999 return;
3306 4000
… …
3318 4012
3319 EV_FREQUENT_CHECK; 4013 EV_FREQUENT_CHECK;
3320} 4014}
3321#endif 4015#endif
3322 4016
4017#if EV_PREPARE_ENABLE
3323void 4018void
3324ev_prepare_start (EV_P_ ev_prepare *w) 4019ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3325{ 4020{
3326 if (expect_false (ev_is_active (w))) 4021 if (expect_false (ev_is_active (w)))
3327 return; 4022 return;
3328 4023
3329 EV_FREQUENT_CHECK; 4024 EV_FREQUENT_CHECK;
… …
3334 4029
3335 EV_FREQUENT_CHECK; 4030 EV_FREQUENT_CHECK;
3336} 4031}
3337 4032
3338void 4033void
3339ev_prepare_stop (EV_P_ ev_prepare *w) 4034ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3340{ 4035{
3341 clear_pending (EV_A_ (W)w); 4036 clear_pending (EV_A_ (W)w);
3342 if (expect_false (!ev_is_active (w))) 4037 if (expect_false (!ev_is_active (w)))
3343 return; 4038 return;
3344 4039
… …
3353 4048
3354 ev_stop (EV_A_ (W)w); 4049 ev_stop (EV_A_ (W)w);
3355 4050
3356 EV_FREQUENT_CHECK; 4051 EV_FREQUENT_CHECK;
3357} 4052}
4053#endif
3358 4054
4055#if EV_CHECK_ENABLE
3359void 4056void
3360ev_check_start (EV_P_ ev_check *w) 4057ev_check_start (EV_P_ ev_check *w) EV_THROW
3361{ 4058{
3362 if (expect_false (ev_is_active (w))) 4059 if (expect_false (ev_is_active (w)))
3363 return; 4060 return;
3364 4061
3365 EV_FREQUENT_CHECK; 4062 EV_FREQUENT_CHECK;
… …
3370 4067
3371 EV_FREQUENT_CHECK; 4068 EV_FREQUENT_CHECK;
3372} 4069}
3373 4070
3374void 4071void
3375ev_check_stop (EV_P_ ev_check *w) 4072ev_check_stop (EV_P_ ev_check *w) EV_THROW
3376{ 4073{
3377 clear_pending (EV_A_ (W)w); 4074 clear_pending (EV_A_ (W)w);
3378 if (expect_false (!ev_is_active (w))) 4075 if (expect_false (!ev_is_active (w)))
3379 return; 4076 return;
3380 4077
… …
3389 4086
3390 ev_stop (EV_A_ (W)w); 4087 ev_stop (EV_A_ (W)w);
3391 4088
3392 EV_FREQUENT_CHECK; 4089 EV_FREQUENT_CHECK;
3393} 4090}
4091#endif
3394 4092
3395#if EV_EMBED_ENABLE 4093#if EV_EMBED_ENABLE
3396void noinline 4094void noinline
3397ev_embed_sweep (EV_P_ ev_embed *w) 4095ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3398{ 4096{
3399 ev_loop (w->other, EVLOOP_NONBLOCK); 4097 ev_run (w->other, EVRUN_NOWAIT);
3400} 4098}
3401 4099
3402static void 4100static void
3403embed_io_cb (EV_P_ ev_io *io, int revents) 4101embed_io_cb (EV_P_ ev_io *io, int revents)
3404{ 4102{
3405 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4103 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3406 4104
3407 if (ev_cb (w)) 4105 if (ev_cb (w))
3408 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4106 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3409 else 4107 else
3410 ev_loop (w->other, EVLOOP_NONBLOCK); 4108 ev_run (w->other, EVRUN_NOWAIT);
3411} 4109}
3412 4110
3413static void 4111static void
3414embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4112embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3415{ 4113{
… …
3419 EV_P = w->other; 4117 EV_P = w->other;
3420 4118
3421 while (fdchangecnt) 4119 while (fdchangecnt)
3422 { 4120 {
3423 fd_reify (EV_A); 4121 fd_reify (EV_A);
3424 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4122 ev_run (EV_A_ EVRUN_NOWAIT);
3425 } 4123 }
3426 } 4124 }
3427} 4125}
3428 4126
3429static void 4127static void
… …
3435 4133
3436 { 4134 {
3437 EV_P = w->other; 4135 EV_P = w->other;
3438 4136
3439 ev_loop_fork (EV_A); 4137 ev_loop_fork (EV_A);
3440 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4138 ev_run (EV_A_ EVRUN_NOWAIT);
3441 } 4139 }
3442 4140
3443 ev_embed_start (EV_A_ w); 4141 ev_embed_start (EV_A_ w);
3444} 4142}
3445 4143
… …
3450 ev_idle_stop (EV_A_ idle); 4148 ev_idle_stop (EV_A_ idle);
3451} 4149}
3452#endif 4150#endif
3453 4151
3454void 4152void
3455ev_embed_start (EV_P_ ev_embed *w) 4153ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3456{ 4154{
3457 if (expect_false (ev_is_active (w))) 4155 if (expect_false (ev_is_active (w)))
3458 return; 4156 return;
3459 4157
3460 { 4158 {
… …
3481 4179
3482 EV_FREQUENT_CHECK; 4180 EV_FREQUENT_CHECK;
3483} 4181}
3484 4182
3485void 4183void
3486ev_embed_stop (EV_P_ ev_embed *w) 4184ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3487{ 4185{
3488 clear_pending (EV_A_ (W)w); 4186 clear_pending (EV_A_ (W)w);
3489 if (expect_false (!ev_is_active (w))) 4187 if (expect_false (!ev_is_active (w)))
3490 return; 4188 return;
3491 4189
… …
3501} 4199}
3502#endif 4200#endif
3503 4201
3504#if EV_FORK_ENABLE 4202#if EV_FORK_ENABLE
3505void 4203void
3506ev_fork_start (EV_P_ ev_fork *w) 4204ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3507{ 4205{
3508 if (expect_false (ev_is_active (w))) 4206 if (expect_false (ev_is_active (w)))
3509 return; 4207 return;
3510 4208
3511 EV_FREQUENT_CHECK; 4209 EV_FREQUENT_CHECK;
… …
3516 4214
3517 EV_FREQUENT_CHECK; 4215 EV_FREQUENT_CHECK;
3518} 4216}
3519 4217
3520void 4218void
3521ev_fork_stop (EV_P_ ev_fork *w) 4219ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3522{ 4220{
3523 clear_pending (EV_A_ (W)w); 4221 clear_pending (EV_A_ (W)w);
3524 if (expect_false (!ev_is_active (w))) 4222 if (expect_false (!ev_is_active (w)))
3525 return; 4223 return;
3526 4224
… …
3537 4235
3538 EV_FREQUENT_CHECK; 4236 EV_FREQUENT_CHECK;
3539} 4237}
3540#endif 4238#endif
3541 4239
4240#if EV_CLEANUP_ENABLE
4241void
4242ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4243{
4244 if (expect_false (ev_is_active (w)))
4245 return;
4246
4247 EV_FREQUENT_CHECK;
4248
4249 ev_start (EV_A_ (W)w, ++cleanupcnt);
4250 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4251 cleanups [cleanupcnt - 1] = w;
4252
4253 /* cleanup watchers should never keep a refcount on the loop */
4254 ev_unref (EV_A);
4255 EV_FREQUENT_CHECK;
4256}
4257
4258void
4259ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4260{
4261 clear_pending (EV_A_ (W)w);
4262 if (expect_false (!ev_is_active (w)))
4263 return;
4264
4265 EV_FREQUENT_CHECK;
4266 ev_ref (EV_A);
4267
4268 {
4269 int active = ev_active (w);
4270
4271 cleanups [active - 1] = cleanups [--cleanupcnt];
4272 ev_active (cleanups [active - 1]) = active;
4273 }
4274
4275 ev_stop (EV_A_ (W)w);
4276
4277 EV_FREQUENT_CHECK;
4278}
4279#endif
4280
3542#if EV_ASYNC_ENABLE 4281#if EV_ASYNC_ENABLE
3543void 4282void
3544ev_async_start (EV_P_ ev_async *w) 4283ev_async_start (EV_P_ ev_async *w) EV_THROW
3545{ 4284{
3546 if (expect_false (ev_is_active (w))) 4285 if (expect_false (ev_is_active (w)))
3547 return; 4286 return;
4287
4288 w->sent = 0;
3548 4289
3549 evpipe_init (EV_A); 4290 evpipe_init (EV_A);
3550 4291
3551 EV_FREQUENT_CHECK; 4292 EV_FREQUENT_CHECK;
3552 4293
… …
3556 4297
3557 EV_FREQUENT_CHECK; 4298 EV_FREQUENT_CHECK;
3558} 4299}
3559 4300
3560void 4301void
3561ev_async_stop (EV_P_ ev_async *w) 4302ev_async_stop (EV_P_ ev_async *w) EV_THROW
3562{ 4303{
3563 clear_pending (EV_A_ (W)w); 4304 clear_pending (EV_A_ (W)w);
3564 if (expect_false (!ev_is_active (w))) 4305 if (expect_false (!ev_is_active (w)))
3565 return; 4306 return;
3566 4307
… …
3577 4318
3578 EV_FREQUENT_CHECK; 4319 EV_FREQUENT_CHECK;
3579} 4320}
3580 4321
3581void 4322void
3582ev_async_send (EV_P_ ev_async *w) 4323ev_async_send (EV_P_ ev_async *w) EV_THROW
3583{ 4324{
3584 w->sent = 1; 4325 w->sent = 1;
3585 evpipe_write (EV_A_ &async_pending); 4326 evpipe_write (EV_A_ &async_pending);
3586} 4327}
3587#endif 4328#endif
… …
3624 4365
3625 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4366 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3626} 4367}
3627 4368
3628void 4369void
3629ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4370ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3630{ 4371{
3631 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4372 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3632 4373
3633 if (expect_false (!once)) 4374 if (expect_false (!once))
3634 { 4375 {
3635 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4376 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3636 return; 4377 return;
3637 } 4378 }
3638 4379
3639 once->cb = cb; 4380 once->cb = cb;
3640 once->arg = arg; 4381 once->arg = arg;
… …
3655} 4396}
3656 4397
3657/*****************************************************************************/ 4398/*****************************************************************************/
3658 4399
3659#if EV_WALK_ENABLE 4400#if EV_WALK_ENABLE
3660void 4401void ecb_cold
3661ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4402ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3662{ 4403{
3663 int i, j; 4404 int i, j;
3664 ev_watcher_list *wl, *wn; 4405 ev_watcher_list *wl, *wn;
3665 4406
3666 if (types & (EV_IO | EV_EMBED)) 4407 if (types & (EV_IO | EV_EMBED))
… …
3709 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4450 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3710#endif 4451#endif
3711 4452
3712#if EV_IDLE_ENABLE 4453#if EV_IDLE_ENABLE
3713 if (types & EV_IDLE) 4454 if (types & EV_IDLE)
3714 for (j = NUMPRI; i--; ) 4455 for (j = NUMPRI; j--; )
3715 for (i = idlecnt [j]; i--; ) 4456 for (i = idlecnt [j]; i--; )
3716 cb (EV_A_ EV_IDLE, idles [j][i]); 4457 cb (EV_A_ EV_IDLE, idles [j][i]);
3717#endif 4458#endif
3718 4459
3719#if EV_FORK_ENABLE 4460#if EV_FORK_ENABLE
… …
3727 if (types & EV_ASYNC) 4468 if (types & EV_ASYNC)
3728 for (i = asynccnt; i--; ) 4469 for (i = asynccnt; i--; )
3729 cb (EV_A_ EV_ASYNC, asyncs [i]); 4470 cb (EV_A_ EV_ASYNC, asyncs [i]);
3730#endif 4471#endif
3731 4472
4473#if EV_PREPARE_ENABLE
3732 if (types & EV_PREPARE) 4474 if (types & EV_PREPARE)
3733 for (i = preparecnt; i--; ) 4475 for (i = preparecnt; i--; )
3734#if EV_EMBED_ENABLE 4476# if EV_EMBED_ENABLE
3735 if (ev_cb (prepares [i]) != embed_prepare_cb) 4477 if (ev_cb (prepares [i]) != embed_prepare_cb)
3736#endif 4478# endif
3737 cb (EV_A_ EV_PREPARE, prepares [i]); 4479 cb (EV_A_ EV_PREPARE, prepares [i]);
4480#endif
3738 4481
4482#if EV_CHECK_ENABLE
3739 if (types & EV_CHECK) 4483 if (types & EV_CHECK)
3740 for (i = checkcnt; i--; ) 4484 for (i = checkcnt; i--; )
3741 cb (EV_A_ EV_CHECK, checks [i]); 4485 cb (EV_A_ EV_CHECK, checks [i]);
4486#endif
3742 4487
4488#if EV_SIGNAL_ENABLE
3743 if (types & EV_SIGNAL) 4489 if (types & EV_SIGNAL)
3744 for (i = 0; i < EV_NSIG - 1; ++i) 4490 for (i = 0; i < EV_NSIG - 1; ++i)
3745 for (wl = signals [i].head; wl; ) 4491 for (wl = signals [i].head; wl; )
3746 { 4492 {
3747 wn = wl->next; 4493 wn = wl->next;
3748 cb (EV_A_ EV_SIGNAL, wl); 4494 cb (EV_A_ EV_SIGNAL, wl);
3749 wl = wn; 4495 wl = wn;
3750 } 4496 }
4497#endif
3751 4498
4499#if EV_CHILD_ENABLE
3752 if (types & EV_CHILD) 4500 if (types & EV_CHILD)
3753 for (i = EV_PID_HASHSIZE; i--; ) 4501 for (i = (EV_PID_HASHSIZE); i--; )
3754 for (wl = childs [i]; wl; ) 4502 for (wl = childs [i]; wl; )
3755 { 4503 {
3756 wn = wl->next; 4504 wn = wl->next;
3757 cb (EV_A_ EV_CHILD, wl); 4505 cb (EV_A_ EV_CHILD, wl);
3758 wl = wn; 4506 wl = wn;
3759 } 4507 }
4508#endif
3760/* EV_STAT 0x00001000 /* stat data changed */ 4509/* EV_STAT 0x00001000 /* stat data changed */
3761/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4510/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3762} 4511}
3763#endif 4512#endif
3764 4513
3765#if EV_MULTIPLICITY 4514#if EV_MULTIPLICITY
3766 #include "ev_wrap.h" 4515 #include "ev_wrap.h"
3767#endif 4516#endif
3768 4517
3769#ifdef __cplusplus
3770}
3771#endif
3772

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