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Comparing libev/ev.c (file contents):
Revision 1.329 by root, Tue Feb 16 09:32:39 2010 UTC vs.
Revision 1.453 by root, Thu Feb 28 00:33:25 2013 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
206# include <winsock2.h>
185# include <windows.h> 207# include <windows.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
211# undef EV_AVOID_STDIO
189#endif 212#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
190 221
191/* 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 */
192 223
193/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
194#if defined (EV_NSIG) 225#if defined EV_NSIG
195/* use what's provided */ 226/* use what's provided */
196#elif defined (NSIG) 227#elif defined NSIG
197# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
198#elif defined(_NSIG) 229#elif defined _NSIG
199# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
200#elif defined (SIGMAX) 231#elif defined SIGMAX
201# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
202#elif defined (SIG_MAX) 233#elif defined SIG_MAX
203# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
204#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
205# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
206#elif defined (MAXSIG) 237#elif defined MAXSIG
207# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
208#elif defined (MAX_SIG) 239#elif defined MAX_SIG
209# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
210#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
211# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
212#elif defined (_sys_nsig) 243#elif defined _sys_nsig
213# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
214#else 245#else
215# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
216/* to make it compile regardless, just remove the above line */ 247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
217# define EV_NSIG 65 249# define EV_NSIG 65
250#endif
251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
218#endif 254#endif
219 255
220#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
221# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
222# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
223# else 259# else
224# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
225# endif 261# endif
226#endif 262#endif
227 263
228#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
229# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
230# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
231# else 267# else
232# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
233# endif 269# endif
234#endif 270#endif
235 271
… …
237# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
238#endif 274#endif
239 275
240#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
241# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
242# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
243# else 279# else
244# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
245# endif 281# endif
246#endif 282#endif
247 283
248#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
249# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
250#endif 286#endif
251 287
252#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
253# ifdef _WIN32 289# ifdef _WIN32
254# define EV_USE_POLL 0 290# define EV_USE_POLL 0
255# else 291# else
256# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
257# endif 293# endif
258#endif 294#endif
259 295
260#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
261# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
262# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
263# else 299# else
264# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
265# endif 301# endif
266#endif 302#endif
267 303
… …
273# define EV_USE_PORT 0 309# define EV_USE_PORT 0
274#endif 310#endif
275 311
276#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
277# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
278# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
279# else 315# else
280# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
281# endif 317# endif
282#endif 318#endif
283 319
284#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
285# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
286# define EV_PID_HASHSIZE 1
287# else
288# define EV_PID_HASHSIZE 16
289# endif
290#endif 322#endif
291 323
292#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
293# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
294# define EV_INOTIFY_HASHSIZE 1
295# else
296# define EV_INOTIFY_HASHSIZE 16
297# endif
298#endif 326#endif
299 327
300#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
301# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
302# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
303# else 331# else
304# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
305# endif 333# endif
306#endif 334#endif
307 335
308#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
309# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
310# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
311# else 339# else
312# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
313# endif 341# endif
314#endif 342#endif
315 343
… …
318# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
319# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
320#endif 348#endif
321 349
322#ifndef EV_VERIFY 350#ifndef EV_VERIFY
323# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
324#endif 352#endif
325 353
326#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
327# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
328#endif 356#endif
329 357
330#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
331# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif
361
362#ifdef ANDROID
363/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT
365# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL
368# define EV_USE_CLOCK_SYSCALL 0
369#endif
370
371/* aix's poll.h seems to cause lots of trouble */
372#ifdef _AIX
373/* AIX has a completely broken poll.h header */
374# undef EV_USE_POLL
375# define EV_USE_POLL 0
332#endif 376#endif
333 377
334/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 378/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
335/* which makes programs even slower. might work on other unices, too. */ 379/* which makes programs even slower. might work on other unices, too. */
336#if EV_USE_CLOCK_SYSCALL 380#if EV_USE_CLOCK_SYSCALL
337# include <syscall.h> 381# include <sys/syscall.h>
338# ifdef SYS_clock_gettime 382# ifdef SYS_clock_gettime
339# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
340# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
341# define EV_USE_MONOTONIC 1 385# define EV_USE_MONOTONIC 1
342# else 386# else
… …
345# endif 389# endif
346#endif 390#endif
347 391
348/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 392/* this block fixes any misconfiguration where we know we run into trouble otherwise */
349 393
350#ifdef _AIX
351/* AIX has a completely broken poll.h header */
352# undef EV_USE_POLL
353# define EV_USE_POLL 0
354#endif
355
356#ifndef CLOCK_MONOTONIC 394#ifndef CLOCK_MONOTONIC
357# undef EV_USE_MONOTONIC 395# undef EV_USE_MONOTONIC
358# define EV_USE_MONOTONIC 0 396# define EV_USE_MONOTONIC 0
359#endif 397#endif
360 398
… …
367# undef EV_USE_INOTIFY 405# undef EV_USE_INOTIFY
368# define EV_USE_INOTIFY 0 406# define EV_USE_INOTIFY 0
369#endif 407#endif
370 408
371#if !EV_USE_NANOSLEEP 409#if !EV_USE_NANOSLEEP
372# ifndef _WIN32 410/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux
373# include <sys/select.h> 412# include <sys/select.h>
374# endif 413# endif
375#endif 414#endif
376 415
377#if EV_USE_INOTIFY 416#if EV_USE_INOTIFY
378# include <sys/utsname.h>
379# include <sys/statfs.h> 417# include <sys/statfs.h>
380# include <sys/inotify.h> 418# include <sys/inotify.h>
381/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 419/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
382# ifndef IN_DONT_FOLLOW 420# ifndef IN_DONT_FOLLOW
383# undef EV_USE_INOTIFY 421# undef EV_USE_INOTIFY
384# define EV_USE_INOTIFY 0 422# define EV_USE_INOTIFY 0
385# endif 423# endif
386#endif
387
388#if EV_SELECT_IS_WINSOCKET
389# include <winsock.h>
390#endif 424#endif
391 425
392#if EV_USE_EVENTFD 426#if EV_USE_EVENTFD
393/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
394# include <stdint.h> 428# include <stdint.h>
… …
400# define EFD_CLOEXEC O_CLOEXEC 434# define EFD_CLOEXEC O_CLOEXEC
401# else 435# else
402# define EFD_CLOEXEC 02000000 436# define EFD_CLOEXEC 02000000
403# endif 437# endif
404# endif 438# endif
405# ifdef __cplusplus
406extern "C" {
407# endif
408int (eventfd) (unsigned int initval, int flags); 439EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
409# ifdef __cplusplus
410}
411# endif
412#endif 440#endif
413 441
414#if EV_USE_SIGNALFD 442#if EV_USE_SIGNALFD
415/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 443/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
416# include <stdint.h> 444# include <stdint.h>
… …
422# define SFD_CLOEXEC O_CLOEXEC 450# define SFD_CLOEXEC O_CLOEXEC
423# else 451# else
424# define SFD_CLOEXEC 02000000 452# define SFD_CLOEXEC 02000000
425# endif 453# endif
426# endif 454# endif
427# ifdef __cplusplus
428extern "C" {
429# endif
430int signalfd (int fd, const sigset_t *mask, int flags); 455EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
431 456
432struct signalfd_siginfo 457struct signalfd_siginfo
433{ 458{
434 uint32_t ssi_signo; 459 uint32_t ssi_signo;
435 char pad[128 - sizeof (uint32_t)]; 460 char pad[128 - sizeof (uint32_t)];
436}; 461};
437# ifdef __cplusplus
438}
439# endif 462#endif
440#endif
441
442 463
443/**/ 464/**/
444 465
445#if EV_VERIFY >= 3 466#if EV_VERIFY >= 3
446# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 467# define EV_FREQUENT_CHECK ev_verify (EV_A)
447#else 468#else
448# define EV_FREQUENT_CHECK do { } while (0) 469# define EV_FREQUENT_CHECK do { } while (0)
449#endif 470#endif
450 471
451/* 472/*
452 * This is used to avoid floating point rounding problems. 473 * This is used to work around floating point rounding problems.
453 * It is added to ev_rt_now when scheduling periodics
454 * to ensure progress, time-wise, even when rounding
455 * errors are against us.
456 * This value is good at least till the year 4000. 474 * This value is good at least till the year 4000.
457 * Better solutions welcome.
458 */ 475 */
459#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 476#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
477/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
460 478
461#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 479#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
462#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 480#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
463 481
482#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
483#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
484
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */
487/*
488 * libecb - http://software.schmorp.de/pkg/libecb
489 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved.
493 *
494 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met:
496 *
497 * 1. Redistributions of source code must retain the above copyright notice,
498 * this list of conditions and the following disclaimer.
499 *
500 * 2. Redistributions in binary form must reproduce the above copyright
501 * notice, this list of conditions and the following disclaimer in the
502 * documentation and/or other materials provided with the distribution.
503 *
504 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
505 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
506 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
507 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
508 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE.
514 */
515
516#ifndef ECB_H
517#define ECB_H
518
519/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010002
521
522#ifdef _WIN32
523 typedef signed char int8_t;
524 typedef unsigned char uint8_t;
525 typedef signed short int16_t;
526 typedef unsigned short uint16_t;
527 typedef signed int int32_t;
528 typedef unsigned int uint32_t;
464#if __GNUC__ >= 4 529 #if __GNUC__
465# define expect(expr,value) __builtin_expect ((expr),(value)) 530 typedef signed long long int64_t;
466# define noinline __attribute__ ((noinline)) 531 typedef unsigned long long uint64_t;
532 #else /* _MSC_VER || __BORLANDC__ */
533 typedef signed __int64 int64_t;
534 typedef unsigned __int64 uint64_t;
535 #endif
536 #ifdef _WIN64
537 #define ECB_PTRSIZE 8
538 typedef uint64_t uintptr_t;
539 typedef int64_t intptr_t;
540 #else
541 #define ECB_PTRSIZE 4
542 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t;
544 #endif
467#else 545#else
468# define expect(expr,value) (expr) 546 #include <inttypes.h>
469# define noinline 547 #if UINTMAX_MAX > 0xffffffffU
470# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 548 #define ECB_PTRSIZE 8
471# define inline 549 #else
550 #define ECB_PTRSIZE 4
551 #endif
472# endif 552#endif
553
554/* many compilers define _GNUC_ to some versions but then only implement
555 * what their idiot authors think are the "more important" extensions,
556 * causing enormous grief in return for some better fake benchmark numbers.
557 * or so.
558 * we try to detect these and simply assume they are not gcc - if they have
559 * an issue with that they should have done it right in the first place.
560 */
561#ifndef ECB_GCC_VERSION
562 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
563 #define ECB_GCC_VERSION(major,minor) 0
564 #else
565 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
473#endif 566 #endif
567#endif
474 568
569#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
570#define ECB_C99 (__STDC_VERSION__ >= 199901L)
571#define ECB_C11 (__STDC_VERSION__ >= 201112L)
572#define ECB_CPP (__cplusplus+0)
573#define ECB_CPP11 (__cplusplus >= 201103L)
574
575#if ECB_CPP
576 #define ECB_EXTERN_C extern "C"
577 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
578 #define ECB_EXTERN_C_END }
579#else
580 #define ECB_EXTERN_C extern
581 #define ECB_EXTERN_C_BEG
582 #define ECB_EXTERN_C_END
583#endif
584
585/*****************************************************************************/
586
587/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
588/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
589
590#if ECB_NO_THREADS
591 #define ECB_NO_SMP 1
592#endif
593
594#if ECB_NO_SMP
595 #define ECB_MEMORY_FENCE do { } while (0)
596#endif
597
598#ifndef ECB_MEMORY_FENCE
599 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600 #if __i386 || __i386__
601 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
606 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
611 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616 #elif __sparc || __sparc__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620 #elif defined __s390__ || defined __s390x__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622 #elif defined __mips__
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
624 #elif defined __alpha__
625 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626 #elif defined __hppa__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif defined __ia64__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
631 #endif
632 #endif
633#endif
634
635#ifndef ECB_MEMORY_FENCE
636 #if ECB_GCC_VERSION(4,7)
637 /* see comment below (stdatomic.h) about the C11 memory model. */
638 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
639
640 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
641 * without risking compile time errors with other compilers. We *could*
642 * define our own ecb_clang_has_feature, but I just can't be bothered to work
643 * around this shit time and again.
644 * #elif defined __clang && __has_feature (cxx_atomic)
645 * // see comment below (stdatomic.h) about the C11 memory model.
646 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647 */
648
649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
650 #define ECB_MEMORY_FENCE __sync_synchronize ()
651 #elif _MSC_VER >= 1400 /* VC++ 2005 */
652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
653 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
654 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
656 #elif defined _WIN32
657 #include <WinNT.h>
658 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
659 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
660 #include <mbarrier.h>
661 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
662 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
663 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
664 #elif __xlC__
665 #define ECB_MEMORY_FENCE __sync ()
666 #endif
667#endif
668
669#ifndef ECB_MEMORY_FENCE
670 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
671 /* we assume that these memory fences work on all variables/all memory accesses, */
672 /* not just C11 atomics and atomic accesses */
673 #include <stdatomic.h>
674 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
675 /* any fence other than seq_cst, which isn't very efficient for us. */
676 /* Why that is, we don't know - either the C11 memory model is quite useless */
677 /* for most usages, or gcc and clang have a bug */
678 /* I *currently* lean towards the latter, and inefficiently implement */
679 /* all three of ecb's fences as a seq_cst fence */
680 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
681 #endif
682#endif
683
684#ifndef ECB_MEMORY_FENCE
685 #if !ECB_AVOID_PTHREADS
686 /*
687 * if you get undefined symbol references to pthread_mutex_lock,
688 * or failure to find pthread.h, then you should implement
689 * the ECB_MEMORY_FENCE operations for your cpu/compiler
690 * OR provide pthread.h and link against the posix thread library
691 * of your system.
692 */
693 #include <pthread.h>
694 #define ECB_NEEDS_PTHREADS 1
695 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
696
697 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
698 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
699 #endif
700#endif
701
702#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
703 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
704#endif
705
706#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
708#endif
709
710/*****************************************************************************/
711
712#if __cplusplus
713 #define ecb_inline static inline
714#elif ECB_GCC_VERSION(2,5)
715 #define ecb_inline static __inline__
716#elif ECB_C99
717 #define ecb_inline static inline
718#else
719 #define ecb_inline static
720#endif
721
722#if ECB_GCC_VERSION(3,3)
723 #define ecb_restrict __restrict__
724#elif ECB_C99
725 #define ecb_restrict restrict
726#else
727 #define ecb_restrict
728#endif
729
730typedef int ecb_bool;
731
732#define ECB_CONCAT_(a, b) a ## b
733#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
734#define ECB_STRINGIFY_(a) # a
735#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
736
737#define ecb_function_ ecb_inline
738
739#if ECB_GCC_VERSION(3,1)
740 #define ecb_attribute(attrlist) __attribute__(attrlist)
741 #define ecb_is_constant(expr) __builtin_constant_p (expr)
742 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
743 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
744#else
745 #define ecb_attribute(attrlist)
746 #define ecb_is_constant(expr) 0
747 #define ecb_expect(expr,value) (expr)
748 #define ecb_prefetch(addr,rw,locality)
749#endif
750
751/* no emulation for ecb_decltype */
752#if ECB_GCC_VERSION(4,5)
753 #define ecb_decltype(x) __decltype(x)
754#elif ECB_GCC_VERSION(3,0)
755 #define ecb_decltype(x) __typeof(x)
756#endif
757
758#define ecb_noinline ecb_attribute ((__noinline__))
759#define ecb_unused ecb_attribute ((__unused__))
760#define ecb_const ecb_attribute ((__const__))
761#define ecb_pure ecb_attribute ((__pure__))
762
763#if ECB_C11
764 #define ecb_noreturn _Noreturn
765#else
766 #define ecb_noreturn ecb_attribute ((__noreturn__))
767#endif
768
769#if ECB_GCC_VERSION(4,3)
770 #define ecb_artificial ecb_attribute ((__artificial__))
771 #define ecb_hot ecb_attribute ((__hot__))
772 #define ecb_cold ecb_attribute ((__cold__))
773#else
774 #define ecb_artificial
775 #define ecb_hot
776 #define ecb_cold
777#endif
778
779/* put around conditional expressions if you are very sure that the */
780/* expression is mostly true or mostly false. note that these return */
781/* booleans, not the expression. */
475#define expect_false(expr) expect ((expr) != 0, 0) 782#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
476#define expect_true(expr) expect ((expr) != 0, 1) 783#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
784/* for compatibility to the rest of the world */
785#define ecb_likely(expr) ecb_expect_true (expr)
786#define ecb_unlikely(expr) ecb_expect_false (expr)
787
788/* count trailing zero bits and count # of one bits */
789#if ECB_GCC_VERSION(3,4)
790 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
791 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
792 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
793 #define ecb_ctz32(x) __builtin_ctz (x)
794 #define ecb_ctz64(x) __builtin_ctzll (x)
795 #define ecb_popcount32(x) __builtin_popcount (x)
796 /* no popcountll */
797#else
798 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
799 ecb_function_ int
800 ecb_ctz32 (uint32_t x)
801 {
802 int r = 0;
803
804 x &= ~x + 1; /* this isolates the lowest bit */
805
806#if ECB_branchless_on_i386
807 r += !!(x & 0xaaaaaaaa) << 0;
808 r += !!(x & 0xcccccccc) << 1;
809 r += !!(x & 0xf0f0f0f0) << 2;
810 r += !!(x & 0xff00ff00) << 3;
811 r += !!(x & 0xffff0000) << 4;
812#else
813 if (x & 0xaaaaaaaa) r += 1;
814 if (x & 0xcccccccc) r += 2;
815 if (x & 0xf0f0f0f0) r += 4;
816 if (x & 0xff00ff00) r += 8;
817 if (x & 0xffff0000) r += 16;
818#endif
819
820 return r;
821 }
822
823 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
824 ecb_function_ int
825 ecb_ctz64 (uint64_t x)
826 {
827 int shift = x & 0xffffffffU ? 0 : 32;
828 return ecb_ctz32 (x >> shift) + shift;
829 }
830
831 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
832 ecb_function_ int
833 ecb_popcount32 (uint32_t x)
834 {
835 x -= (x >> 1) & 0x55555555;
836 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
837 x = ((x >> 4) + x) & 0x0f0f0f0f;
838 x *= 0x01010101;
839
840 return x >> 24;
841 }
842
843 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
844 ecb_function_ int ecb_ld32 (uint32_t x)
845 {
846 int r = 0;
847
848 if (x >> 16) { x >>= 16; r += 16; }
849 if (x >> 8) { x >>= 8; r += 8; }
850 if (x >> 4) { x >>= 4; r += 4; }
851 if (x >> 2) { x >>= 2; r += 2; }
852 if (x >> 1) { r += 1; }
853
854 return r;
855 }
856
857 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
858 ecb_function_ int ecb_ld64 (uint64_t x)
859 {
860 int r = 0;
861
862 if (x >> 32) { x >>= 32; r += 32; }
863
864 return r + ecb_ld32 (x);
865 }
866#endif
867
868ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
869ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
870ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
871ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
872
873ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
874ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
875{
876 return ( (x * 0x0802U & 0x22110U)
877 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878}
879
880ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
881ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
882{
883 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886 x = ( x >> 8 ) | ( x << 8);
887
888 return x;
889}
890
891ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
892ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
893{
894 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
898 x = ( x >> 16 ) | ( x << 16);
899
900 return x;
901}
902
903/* popcount64 is only available on 64 bit cpus as gcc builtin */
904/* so for this version we are lazy */
905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
906ecb_function_ int
907ecb_popcount64 (uint64_t x)
908{
909 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
910}
911
912ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
913ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
914ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
915ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
916ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
917ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
918ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
919ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
920
921ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
922ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
923ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
924ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
925ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
926ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
927ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
928ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
929
930#if ECB_GCC_VERSION(4,3)
931 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
932 #define ecb_bswap32(x) __builtin_bswap32 (x)
933 #define ecb_bswap64(x) __builtin_bswap64 (x)
934#else
935 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
936 ecb_function_ uint16_t
937 ecb_bswap16 (uint16_t x)
938 {
939 return ecb_rotl16 (x, 8);
940 }
941
942 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
943 ecb_function_ uint32_t
944 ecb_bswap32 (uint32_t x)
945 {
946 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
947 }
948
949 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
950 ecb_function_ uint64_t
951 ecb_bswap64 (uint64_t x)
952 {
953 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
954 }
955#endif
956
957#if ECB_GCC_VERSION(4,5)
958 #define ecb_unreachable() __builtin_unreachable ()
959#else
960 /* this seems to work fine, but gcc always emits a warning for it :/ */
961 ecb_inline void ecb_unreachable (void) ecb_noreturn;
962 ecb_inline void ecb_unreachable (void) { }
963#endif
964
965/* try to tell the compiler that some condition is definitely true */
966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
967
968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
969ecb_inline unsigned char
970ecb_byteorder_helper (void)
971{
972 /* the union code still generates code under pressure in gcc, */
973 /* but less than using pointers, and always seems to */
974 /* successfully return a constant. */
975 /* the reason why we have this horrible preprocessor mess */
976 /* is to avoid it in all cases, at least on common architectures */
977 /* or when using a recent enough gcc version (>= 4.6) */
978#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
979 return 0x44;
980#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
981 return 0x44;
982#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
983 return 0x11;
984#else
985 union
986 {
987 uint32_t i;
988 uint8_t c;
989 } u = { 0x11223344 };
990 return u.c;
991#endif
992}
993
994ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
995ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
996ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
997ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
998
999#if ECB_GCC_VERSION(3,0) || ECB_C99
1000 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1001#else
1002 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1003#endif
1004
1005#if __cplusplus
1006 template<typename T>
1007 static inline T ecb_div_rd (T val, T div)
1008 {
1009 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1010 }
1011 template<typename T>
1012 static inline T ecb_div_ru (T val, T div)
1013 {
1014 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1015 }
1016#else
1017 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1018 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1019#endif
1020
1021#if ecb_cplusplus_does_not_suck
1022 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1023 template<typename T, int N>
1024 static inline int ecb_array_length (const T (&arr)[N])
1025 {
1026 return N;
1027 }
1028#else
1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1030#endif
1031
1032/*******************************************************************************/
1033/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034
1035/* basically, everything uses "ieee pure-endian" floating point numbers */
1036/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037#if 0 \
1038 || __i386 || __i386__ \
1039 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1040 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041 || defined __arm__ && defined __ARM_EABI__ \
1042 || defined __s390__ || defined __s390x__ \
1043 || defined __mips__ \
1044 || defined __alpha__ \
1045 || defined __hppa__ \
1046 || defined __ia64__ \
1047 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1048 #define ECB_STDFP 1
1049 #include <string.h> /* for memcpy */
1050#else
1051 #define ECB_STDFP 0
1052 #include <math.h> /* for frexp*, ldexp* */
1053#endif
1054
1055#ifndef ECB_NO_LIBM
1056
1057 /* convert a float to ieee single/binary32 */
1058 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1059 ecb_function_ uint32_t
1060 ecb_float_to_binary32 (float x)
1061 {
1062 uint32_t r;
1063
1064 #if ECB_STDFP
1065 memcpy (&r, &x, 4);
1066 #else
1067 /* slow emulation, works for anything but -0 */
1068 uint32_t m;
1069 int e;
1070
1071 if (x == 0e0f ) return 0x00000000U;
1072 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074 if (x != x ) return 0x7fbfffffU;
1075
1076 m = frexpf (x, &e) * 0x1000000U;
1077
1078 r = m & 0x80000000U;
1079
1080 if (r)
1081 m = -m;
1082
1083 if (e <= -126)
1084 {
1085 m &= 0xffffffU;
1086 m >>= (-125 - e);
1087 e = -126;
1088 }
1089
1090 r |= (e + 126) << 23;
1091 r |= m & 0x7fffffU;
1092 #endif
1093
1094 return r;
1095 }
1096
1097 /* converts an ieee single/binary32 to a float */
1098 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1099 ecb_function_ float
1100 ecb_binary32_to_float (uint32_t x)
1101 {
1102 float r;
1103
1104 #if ECB_STDFP
1105 memcpy (&r, &x, 4);
1106 #else
1107 /* emulation, only works for normals and subnormals and +0 */
1108 int neg = x >> 31;
1109 int e = (x >> 23) & 0xffU;
1110
1111 x &= 0x7fffffU;
1112
1113 if (e)
1114 x |= 0x800000U;
1115 else
1116 e = 1;
1117
1118 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1119 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1120
1121 r = neg ? -r : r;
1122 #endif
1123
1124 return r;
1125 }
1126
1127 /* convert a double to ieee double/binary64 */
1128 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1129 ecb_function_ uint64_t
1130 ecb_double_to_binary64 (double x)
1131 {
1132 uint64_t r;
1133
1134 #if ECB_STDFP
1135 memcpy (&r, &x, 8);
1136 #else
1137 /* slow emulation, works for anything but -0 */
1138 uint64_t m;
1139 int e;
1140
1141 if (x == 0e0 ) return 0x0000000000000000U;
1142 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1143 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1144 if (x != x ) return 0X7ff7ffffffffffffU;
1145
1146 m = frexp (x, &e) * 0x20000000000000U;
1147
1148 r = m & 0x8000000000000000;;
1149
1150 if (r)
1151 m = -m;
1152
1153 if (e <= -1022)
1154 {
1155 m &= 0x1fffffffffffffU;
1156 m >>= (-1021 - e);
1157 e = -1022;
1158 }
1159
1160 r |= ((uint64_t)(e + 1022)) << 52;
1161 r |= m & 0xfffffffffffffU;
1162 #endif
1163
1164 return r;
1165 }
1166
1167 /* converts an ieee double/binary64 to a double */
1168 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1169 ecb_function_ double
1170 ecb_binary64_to_double (uint64_t x)
1171 {
1172 double r;
1173
1174 #if ECB_STDFP
1175 memcpy (&r, &x, 8);
1176 #else
1177 /* emulation, only works for normals and subnormals and +0 */
1178 int neg = x >> 63;
1179 int e = (x >> 52) & 0x7ffU;
1180
1181 x &= 0xfffffffffffffU;
1182
1183 if (e)
1184 x |= 0x10000000000000U;
1185 else
1186 e = 1;
1187
1188 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1189 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1190
1191 r = neg ? -r : r;
1192 #endif
1193
1194 return r;
1195 }
1196
1197#endif
1198
1199#endif
1200
1201/* ECB.H END */
1202
1203#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1204/* if your architecture doesn't need memory fences, e.g. because it is
1205 * single-cpu/core, or if you use libev in a project that doesn't use libev
1206 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1207 * libev, in which cases the memory fences become nops.
1208 * alternatively, you can remove this #error and link against libpthread,
1209 * which will then provide the memory fences.
1210 */
1211# error "memory fences not defined for your architecture, please report"
1212#endif
1213
1214#ifndef ECB_MEMORY_FENCE
1215# define ECB_MEMORY_FENCE do { } while (0)
1216# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1217# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1218#endif
1219
1220#define expect_false(cond) ecb_expect_false (cond)
1221#define expect_true(cond) ecb_expect_true (cond)
1222#define noinline ecb_noinline
1223
477#define inline_size static inline 1224#define inline_size ecb_inline
478 1225
479#if EV_MINIMAL 1226#if EV_FEATURE_CODE
1227# define inline_speed ecb_inline
1228#else
480# define inline_speed static noinline 1229# define inline_speed static noinline
481#else
482# define inline_speed static inline
483#endif 1230#endif
484 1231
485#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1232#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
486 1233
487#if EV_MINPRI == EV_MAXPRI 1234#if EV_MINPRI == EV_MAXPRI
… …
500#define ev_active(w) ((W)(w))->active 1247#define ev_active(w) ((W)(w))->active
501#define ev_at(w) ((WT)(w))->at 1248#define ev_at(w) ((WT)(w))->at
502 1249
503#if EV_USE_REALTIME 1250#if EV_USE_REALTIME
504/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1251/* sig_atomic_t is used to avoid per-thread variables or locking but still */
505/* giving it a reasonably high chance of working on typical architetcures */ 1252/* giving it a reasonably high chance of working on typical architectures */
506static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1253static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
507#endif 1254#endif
508 1255
509#if EV_USE_MONOTONIC 1256#if EV_USE_MONOTONIC
510static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1257static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
524# include "ev_win32.c" 1271# include "ev_win32.c"
525#endif 1272#endif
526 1273
527/*****************************************************************************/ 1274/*****************************************************************************/
528 1275
1276/* define a suitable floor function (only used by periodics atm) */
1277
1278#if EV_USE_FLOOR
1279# include <math.h>
1280# define ev_floor(v) floor (v)
1281#else
1282
1283#include <float.h>
1284
1285/* a floor() replacement function, should be independent of ev_tstamp type */
1286static ev_tstamp noinline
1287ev_floor (ev_tstamp v)
1288{
1289 /* the choice of shift factor is not terribly important */
1290#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1291 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1292#else
1293 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1294#endif
1295
1296 /* argument too large for an unsigned long? */
1297 if (expect_false (v >= shift))
1298 {
1299 ev_tstamp f;
1300
1301 if (v == v - 1.)
1302 return v; /* very large number */
1303
1304 f = shift * ev_floor (v * (1. / shift));
1305 return f + ev_floor (v - f);
1306 }
1307
1308 /* special treatment for negative args? */
1309 if (expect_false (v < 0.))
1310 {
1311 ev_tstamp f = -ev_floor (-v);
1312
1313 return f - (f == v ? 0 : 1);
1314 }
1315
1316 /* fits into an unsigned long */
1317 return (unsigned long)v;
1318}
1319
1320#endif
1321
1322/*****************************************************************************/
1323
1324#ifdef __linux
1325# include <sys/utsname.h>
1326#endif
1327
1328static unsigned int noinline ecb_cold
1329ev_linux_version (void)
1330{
1331#ifdef __linux
1332 unsigned int v = 0;
1333 struct utsname buf;
1334 int i;
1335 char *p = buf.release;
1336
1337 if (uname (&buf))
1338 return 0;
1339
1340 for (i = 3+1; --i; )
1341 {
1342 unsigned int c = 0;
1343
1344 for (;;)
1345 {
1346 if (*p >= '0' && *p <= '9')
1347 c = c * 10 + *p++ - '0';
1348 else
1349 {
1350 p += *p == '.';
1351 break;
1352 }
1353 }
1354
1355 v = (v << 8) | c;
1356 }
1357
1358 return v;
1359#else
1360 return 0;
1361#endif
1362}
1363
1364/*****************************************************************************/
1365
1366#if EV_AVOID_STDIO
1367static void noinline ecb_cold
1368ev_printerr (const char *msg)
1369{
1370 write (STDERR_FILENO, msg, strlen (msg));
1371}
1372#endif
1373
529static void (*syserr_cb)(const char *msg); 1374static void (*syserr_cb)(const char *msg) EV_THROW;
530 1375
531void 1376void ecb_cold
532ev_set_syserr_cb (void (*cb)(const char *msg)) 1377ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
533{ 1378{
534 syserr_cb = cb; 1379 syserr_cb = cb;
535} 1380}
536 1381
537static void noinline 1382static void noinline ecb_cold
538ev_syserr (const char *msg) 1383ev_syserr (const char *msg)
539{ 1384{
540 if (!msg) 1385 if (!msg)
541 msg = "(libev) system error"; 1386 msg = "(libev) system error";
542 1387
543 if (syserr_cb) 1388 if (syserr_cb)
544 syserr_cb (msg); 1389 syserr_cb (msg);
545 else 1390 else
546 { 1391 {
1392#if EV_AVOID_STDIO
1393 ev_printerr (msg);
1394 ev_printerr (": ");
1395 ev_printerr (strerror (errno));
1396 ev_printerr ("\n");
1397#else
547 perror (msg); 1398 perror (msg);
1399#endif
548 abort (); 1400 abort ();
549 } 1401 }
550} 1402}
551 1403
552static void * 1404static void *
553ev_realloc_emul (void *ptr, long size) 1405ev_realloc_emul (void *ptr, long size) EV_THROW
554{ 1406{
555 /* some systems, notably openbsd and darwin, fail to properly 1407 /* some systems, notably openbsd and darwin, fail to properly
556 * implement realloc (x, 0) (as required by both ansi c-98 and 1408 * implement realloc (x, 0) (as required by both ansi c-89 and
557 * the single unix specification, so work around them here. 1409 * the single unix specification, so work around them here.
1410 * recently, also (at least) fedora and debian started breaking it,
1411 * despite documenting it otherwise.
558 */ 1412 */
559 1413
560 if (size) 1414 if (size)
561 return realloc (ptr, size); 1415 return realloc (ptr, size);
562 1416
563 free (ptr); 1417 free (ptr);
564 return 0; 1418 return 0;
565} 1419}
566 1420
567static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
568 1422
569void 1423void ecb_cold
570ev_set_allocator (void *(*cb)(void *ptr, long size)) 1424ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
571{ 1425{
572 alloc = cb; 1426 alloc = cb;
573} 1427}
574 1428
575inline_speed void * 1429inline_speed void *
… …
577{ 1431{
578 ptr = alloc (ptr, size); 1432 ptr = alloc (ptr, size);
579 1433
580 if (!ptr && size) 1434 if (!ptr && size)
581 { 1435 {
1436#if EV_AVOID_STDIO
1437 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1438#else
582 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1439 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1440#endif
583 abort (); 1441 abort ();
584 } 1442 }
585 1443
586 return ptr; 1444 return ptr;
587} 1445}
… …
603 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1461 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
604 unsigned char unused; 1462 unsigned char unused;
605#if EV_USE_EPOLL 1463#if EV_USE_EPOLL
606 unsigned int egen; /* generation counter to counter epoll bugs */ 1464 unsigned int egen; /* generation counter to counter epoll bugs */
607#endif 1465#endif
608#if EV_SELECT_IS_WINSOCKET 1466#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
609 SOCKET handle; 1467 SOCKET handle;
1468#endif
1469#if EV_USE_IOCP
1470 OVERLAPPED or, ow;
610#endif 1471#endif
611} ANFD; 1472} ANFD;
612 1473
613/* stores the pending event set for a given watcher */ 1474/* stores the pending event set for a given watcher */
614typedef struct 1475typedef struct
… …
656 #undef VAR 1517 #undef VAR
657 }; 1518 };
658 #include "ev_wrap.h" 1519 #include "ev_wrap.h"
659 1520
660 static struct ev_loop default_loop_struct; 1521 static struct ev_loop default_loop_struct;
661 struct ev_loop *ev_default_loop_ptr; 1522 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
662 1523
663#else 1524#else
664 1525
665 ev_tstamp ev_rt_now; 1526 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
666 #define VAR(name,decl) static decl; 1527 #define VAR(name,decl) static decl;
667 #include "ev_vars.h" 1528 #include "ev_vars.h"
668 #undef VAR 1529 #undef VAR
669 1530
670 static int ev_default_loop_ptr; 1531 static int ev_default_loop_ptr;
671 1532
672#endif 1533#endif
673 1534
674#if EV_MINIMAL < 2 1535#if EV_FEATURE_API
675# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1536# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
676# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1537# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
677# define EV_INVOKE_PENDING invoke_cb (EV_A) 1538# define EV_INVOKE_PENDING invoke_cb (EV_A)
678#else 1539#else
679# define EV_RELEASE_CB (void)0 1540# define EV_RELEASE_CB (void)0
680# define EV_ACQUIRE_CB (void)0 1541# define EV_ACQUIRE_CB (void)0
681# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1542# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
682#endif 1543#endif
683 1544
684#define EVUNLOOP_RECURSE 0x80 1545#define EVBREAK_RECURSE 0x80
685 1546
686/*****************************************************************************/ 1547/*****************************************************************************/
687 1548
688#ifndef EV_HAVE_EV_TIME 1549#ifndef EV_HAVE_EV_TIME
689ev_tstamp 1550ev_tstamp
690ev_time (void) 1551ev_time (void) EV_THROW
691{ 1552{
692#if EV_USE_REALTIME 1553#if EV_USE_REALTIME
693 if (expect_true (have_realtime)) 1554 if (expect_true (have_realtime))
694 { 1555 {
695 struct timespec ts; 1556 struct timespec ts;
… …
719 return ev_time (); 1580 return ev_time ();
720} 1581}
721 1582
722#if EV_MULTIPLICITY 1583#if EV_MULTIPLICITY
723ev_tstamp 1584ev_tstamp
724ev_now (EV_P) 1585ev_now (EV_P) EV_THROW
725{ 1586{
726 return ev_rt_now; 1587 return ev_rt_now;
727} 1588}
728#endif 1589#endif
729 1590
730void 1591void
731ev_sleep (ev_tstamp delay) 1592ev_sleep (ev_tstamp delay) EV_THROW
732{ 1593{
733 if (delay > 0.) 1594 if (delay > 0.)
734 { 1595 {
735#if EV_USE_NANOSLEEP 1596#if EV_USE_NANOSLEEP
736 struct timespec ts; 1597 struct timespec ts;
737 1598
738 ts.tv_sec = (time_t)delay; 1599 EV_TS_SET (ts, delay);
739 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
740
741 nanosleep (&ts, 0); 1600 nanosleep (&ts, 0);
742#elif defined(_WIN32) 1601#elif defined _WIN32
743 Sleep ((unsigned long)(delay * 1e3)); 1602 Sleep ((unsigned long)(delay * 1e3));
744#else 1603#else
745 struct timeval tv; 1604 struct timeval tv;
746 1605
747 tv.tv_sec = (time_t)delay;
748 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
749
750 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1606 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
751 /* something not guaranteed by newer posix versions, but guaranteed */ 1607 /* something not guaranteed by newer posix versions, but guaranteed */
752 /* by older ones */ 1608 /* by older ones */
1609 EV_TV_SET (tv, delay);
753 select (0, 0, 0, 0, &tv); 1610 select (0, 0, 0, 0, &tv);
754#endif 1611#endif
755 } 1612 }
756} 1613}
757 1614
758/*****************************************************************************/ 1615/*****************************************************************************/
759 1616
760#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1617#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
761 1618
762/* find a suitable new size for the given array, */ 1619/* find a suitable new size for the given array, */
763/* hopefully by rounding to a ncie-to-malloc size */ 1620/* hopefully by rounding to a nice-to-malloc size */
764inline_size int 1621inline_size int
765array_nextsize (int elem, int cur, int cnt) 1622array_nextsize (int elem, int cur, int cnt)
766{ 1623{
767 int ncur = cur + 1; 1624 int ncur = cur + 1;
768 1625
769 do 1626 do
770 ncur <<= 1; 1627 ncur <<= 1;
771 while (cnt > ncur); 1628 while (cnt > ncur);
772 1629
773 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1630 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
774 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1631 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
775 { 1632 {
776 ncur *= elem; 1633 ncur *= elem;
777 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1634 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
778 ncur = ncur - sizeof (void *) * 4; 1635 ncur = ncur - sizeof (void *) * 4;
… …
780 } 1637 }
781 1638
782 return ncur; 1639 return ncur;
783} 1640}
784 1641
785static noinline void * 1642static void * noinline ecb_cold
786array_realloc (int elem, void *base, int *cur, int cnt) 1643array_realloc (int elem, void *base, int *cur, int cnt)
787{ 1644{
788 *cur = array_nextsize (elem, *cur, cnt); 1645 *cur = array_nextsize (elem, *cur, cnt);
789 return ev_realloc (base, elem * *cur); 1646 return ev_realloc (base, elem * *cur);
790} 1647}
… …
793 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1650 memset ((void *)(base), 0, sizeof (*(base)) * (count))
794 1651
795#define array_needsize(type,base,cur,cnt,init) \ 1652#define array_needsize(type,base,cur,cnt,init) \
796 if (expect_false ((cnt) > (cur))) \ 1653 if (expect_false ((cnt) > (cur))) \
797 { \ 1654 { \
798 int ocur_ = (cur); \ 1655 int ecb_unused ocur_ = (cur); \
799 (base) = (type *)array_realloc \ 1656 (base) = (type *)array_realloc \
800 (sizeof (type), (base), &(cur), (cnt)); \ 1657 (sizeof (type), (base), &(cur), (cnt)); \
801 init ((base) + (ocur_), (cur) - ocur_); \ 1658 init ((base) + (ocur_), (cur) - ocur_); \
802 } 1659 }
803 1660
… …
821pendingcb (EV_P_ ev_prepare *w, int revents) 1678pendingcb (EV_P_ ev_prepare *w, int revents)
822{ 1679{
823} 1680}
824 1681
825void noinline 1682void noinline
826ev_feed_event (EV_P_ void *w, int revents) 1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW
827{ 1684{
828 W w_ = (W)w; 1685 W w_ = (W)w;
829 int pri = ABSPRI (w_); 1686 int pri = ABSPRI (w_);
830 1687
831 if (expect_false (w_->pending)) 1688 if (expect_false (w_->pending))
… …
835 w_->pending = ++pendingcnt [pri]; 1692 w_->pending = ++pendingcnt [pri];
836 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
837 pendings [pri][w_->pending - 1].w = w_; 1694 pendings [pri][w_->pending - 1].w = w_;
838 pendings [pri][w_->pending - 1].events = revents; 1695 pendings [pri][w_->pending - 1].events = revents;
839 } 1696 }
1697
1698 pendingpri = NUMPRI - 1;
840} 1699}
841 1700
842inline_speed void 1701inline_speed void
843feed_reverse (EV_P_ W w) 1702feed_reverse (EV_P_ W w)
844{ 1703{
… …
864} 1723}
865 1724
866/*****************************************************************************/ 1725/*****************************************************************************/
867 1726
868inline_speed void 1727inline_speed void
869fd_event_nc (EV_P_ int fd, int revents) 1728fd_event_nocheck (EV_P_ int fd, int revents)
870{ 1729{
871 ANFD *anfd = anfds + fd; 1730 ANFD *anfd = anfds + fd;
872 ev_io *w; 1731 ev_io *w;
873 1732
874 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1733 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
886fd_event (EV_P_ int fd, int revents) 1745fd_event (EV_P_ int fd, int revents)
887{ 1746{
888 ANFD *anfd = anfds + fd; 1747 ANFD *anfd = anfds + fd;
889 1748
890 if (expect_true (!anfd->reify)) 1749 if (expect_true (!anfd->reify))
891 fd_event_nc (EV_A_ fd, revents); 1750 fd_event_nocheck (EV_A_ fd, revents);
892} 1751}
893 1752
894void 1753void
895ev_feed_fd_event (EV_P_ int fd, int revents) 1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
896{ 1755{
897 if (fd >= 0 && fd < anfdmax) 1756 if (fd >= 0 && fd < anfdmax)
898 fd_event_nc (EV_A_ fd, revents); 1757 fd_event_nocheck (EV_A_ fd, revents);
899} 1758}
900 1759
901/* make sure the external fd watch events are in-sync */ 1760/* make sure the external fd watch events are in-sync */
902/* with the kernel/libev internal state */ 1761/* with the kernel/libev internal state */
903inline_size void 1762inline_size void
904fd_reify (EV_P) 1763fd_reify (EV_P)
905{ 1764{
906 int i; 1765 int i;
907 1766
1767#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1768 for (i = 0; i < fdchangecnt; ++i)
1769 {
1770 int fd = fdchanges [i];
1771 ANFD *anfd = anfds + fd;
1772
1773 if (anfd->reify & EV__IOFDSET && anfd->head)
1774 {
1775 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1776
1777 if (handle != anfd->handle)
1778 {
1779 unsigned long arg;
1780
1781 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1782
1783 /* handle changed, but fd didn't - we need to do it in two steps */
1784 backend_modify (EV_A_ fd, anfd->events, 0);
1785 anfd->events = 0;
1786 anfd->handle = handle;
1787 }
1788 }
1789 }
1790#endif
1791
908 for (i = 0; i < fdchangecnt; ++i) 1792 for (i = 0; i < fdchangecnt; ++i)
909 { 1793 {
910 int fd = fdchanges [i]; 1794 int fd = fdchanges [i];
911 ANFD *anfd = anfds + fd; 1795 ANFD *anfd = anfds + fd;
912 ev_io *w; 1796 ev_io *w;
913 1797
914 unsigned char events = 0; 1798 unsigned char o_events = anfd->events;
1799 unsigned char o_reify = anfd->reify;
915 1800
916 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1801 anfd->reify = 0;
917 events |= (unsigned char)w->events;
918 1802
919#if EV_SELECT_IS_WINSOCKET 1803 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
920 if (events)
921 { 1804 {
922 unsigned long arg; 1805 anfd->events = 0;
923 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1806
924 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1807 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1808 anfd->events |= (unsigned char)w->events;
1809
1810 if (o_events != anfd->events)
1811 o_reify = EV__IOFDSET; /* actually |= */
925 } 1812 }
926#endif
927 1813
928 { 1814 if (o_reify & EV__IOFDSET)
929 unsigned char o_events = anfd->events;
930 unsigned char o_reify = anfd->reify;
931
932 anfd->reify = 0;
933 anfd->events = events;
934
935 if (o_events != events || o_reify & EV__IOFDSET)
936 backend_modify (EV_A_ fd, o_events, events); 1815 backend_modify (EV_A_ fd, o_events, anfd->events);
937 }
938 } 1816 }
939 1817
940 fdchangecnt = 0; 1818 fdchangecnt = 0;
941} 1819}
942 1820
… …
954 fdchanges [fdchangecnt - 1] = fd; 1832 fdchanges [fdchangecnt - 1] = fd;
955 } 1833 }
956} 1834}
957 1835
958/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1836/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
959inline_speed void 1837inline_speed void ecb_cold
960fd_kill (EV_P_ int fd) 1838fd_kill (EV_P_ int fd)
961{ 1839{
962 ev_io *w; 1840 ev_io *w;
963 1841
964 while ((w = (ev_io *)anfds [fd].head)) 1842 while ((w = (ev_io *)anfds [fd].head))
… …
966 ev_io_stop (EV_A_ w); 1844 ev_io_stop (EV_A_ w);
967 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1845 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
968 } 1846 }
969} 1847}
970 1848
971/* check whether the given fd is atcually valid, for error recovery */ 1849/* check whether the given fd is actually valid, for error recovery */
972inline_size int 1850inline_size int ecb_cold
973fd_valid (int fd) 1851fd_valid (int fd)
974{ 1852{
975#ifdef _WIN32 1853#ifdef _WIN32
976 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1854 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
977#else 1855#else
978 return fcntl (fd, F_GETFD) != -1; 1856 return fcntl (fd, F_GETFD) != -1;
979#endif 1857#endif
980} 1858}
981 1859
982/* called on EBADF to verify fds */ 1860/* called on EBADF to verify fds */
983static void noinline 1861static void noinline ecb_cold
984fd_ebadf (EV_P) 1862fd_ebadf (EV_P)
985{ 1863{
986 int fd; 1864 int fd;
987 1865
988 for (fd = 0; fd < anfdmax; ++fd) 1866 for (fd = 0; fd < anfdmax; ++fd)
… …
990 if (!fd_valid (fd) && errno == EBADF) 1868 if (!fd_valid (fd) && errno == EBADF)
991 fd_kill (EV_A_ fd); 1869 fd_kill (EV_A_ fd);
992} 1870}
993 1871
994/* called on ENOMEM in select/poll to kill some fds and retry */ 1872/* called on ENOMEM in select/poll to kill some fds and retry */
995static void noinline 1873static void noinline ecb_cold
996fd_enomem (EV_P) 1874fd_enomem (EV_P)
997{ 1875{
998 int fd; 1876 int fd;
999 1877
1000 for (fd = anfdmax; fd--; ) 1878 for (fd = anfdmax; fd--; )
… …
1018 anfds [fd].emask = 0; 1896 anfds [fd].emask = 0;
1019 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1897 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1020 } 1898 }
1021} 1899}
1022 1900
1901/* used to prepare libev internal fd's */
1902/* this is not fork-safe */
1903inline_speed void
1904fd_intern (int fd)
1905{
1906#ifdef _WIN32
1907 unsigned long arg = 1;
1908 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1909#else
1910 fcntl (fd, F_SETFD, FD_CLOEXEC);
1911 fcntl (fd, F_SETFL, O_NONBLOCK);
1912#endif
1913}
1914
1023/*****************************************************************************/ 1915/*****************************************************************************/
1024 1916
1025/* 1917/*
1026 * the heap functions want a real array index. array index 0 uis guaranteed to not 1918 * the heap functions want a real array index. array index 0 is guaranteed to not
1027 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1919 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1028 * the branching factor of the d-tree. 1920 * the branching factor of the d-tree.
1029 */ 1921 */
1030 1922
1031/* 1923/*
… …
1179 2071
1180static ANSIG signals [EV_NSIG - 1]; 2072static ANSIG signals [EV_NSIG - 1];
1181 2073
1182/*****************************************************************************/ 2074/*****************************************************************************/
1183 2075
1184/* used to prepare libev internal fd's */ 2076#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1185/* this is not fork-safe */ 2077
2078static void noinline ecb_cold
2079evpipe_init (EV_P)
2080{
2081 if (!ev_is_active (&pipe_w))
2082 {
2083 int fds [2];
2084
2085# if EV_USE_EVENTFD
2086 fds [0] = -1;
2087 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
2088 if (fds [1] < 0 && errno == EINVAL)
2089 fds [1] = eventfd (0, 0);
2090
2091 if (fds [1] < 0)
2092# endif
2093 {
2094 while (pipe (fds))
2095 ev_syserr ("(libev) error creating signal/async pipe");
2096
2097 fd_intern (fds [0]);
2098 }
2099
2100 fd_intern (fds [1]);
2101
2102 evpipe [0] = fds [0];
2103
2104 if (evpipe [1] < 0)
2105 evpipe [1] = fds [1]; /* first call, set write fd */
2106 else
2107 {
2108 /* on subsequent calls, do not change evpipe [1] */
2109 /* so that evpipe_write can always rely on its value. */
2110 /* this branch does not do anything sensible on windows, */
2111 /* so must not be executed on windows */
2112
2113 dup2 (fds [1], evpipe [1]);
2114 close (fds [1]);
2115 }
2116
2117 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2118 ev_io_start (EV_A_ &pipe_w);
2119 ev_unref (EV_A); /* watcher should not keep loop alive */
2120 }
2121}
2122
1186inline_speed void 2123inline_speed void
1187fd_intern (int fd) 2124evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1188{ 2125{
1189#ifdef _WIN32 2126 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1190 unsigned long arg = 1;
1191 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1192#else
1193 fcntl (fd, F_SETFD, FD_CLOEXEC);
1194 fcntl (fd, F_SETFL, O_NONBLOCK);
1195#endif
1196}
1197 2127
1198static void noinline 2128 if (expect_true (*flag))
1199evpipe_init (EV_P) 2129 return;
1200{ 2130
1201 if (!ev_is_active (&pipe_w)) 2131 *flag = 1;
2132 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2133
2134 pipe_write_skipped = 1;
2135
2136 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2137
2138 if (pipe_write_wanted)
1202 { 2139 {
2140 int old_errno;
2141
2142 pipe_write_skipped = 0;
2143 ECB_MEMORY_FENCE_RELEASE;
2144
2145 old_errno = errno; /* save errno because write will clobber it */
2146
1203#if EV_USE_EVENTFD 2147#if EV_USE_EVENTFD
1204 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2148 if (evpipe [0] < 0)
1205 if (evfd < 0 && errno == EINVAL)
1206 evfd = eventfd (0, 0);
1207
1208 if (evfd >= 0)
1209 { 2149 {
1210 evpipe [0] = -1; 2150 uint64_t counter = 1;
1211 fd_intern (evfd); /* doing it twice doesn't hurt */ 2151 write (evpipe [1], &counter, sizeof (uint64_t));
1212 ev_io_set (&pipe_w, evfd, EV_READ);
1213 } 2152 }
1214 else 2153 else
1215#endif 2154#endif
1216 { 2155 {
1217 while (pipe (evpipe)) 2156#ifdef _WIN32
1218 ev_syserr ("(libev) error creating signal/async pipe"); 2157 WSABUF buf;
1219 2158 DWORD sent;
1220 fd_intern (evpipe [0]); 2159 buf.buf = &buf;
1221 fd_intern (evpipe [1]); 2160 buf.len = 1;
1222 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2161 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2162#else
2163 write (evpipe [1], &(evpipe [1]), 1);
2164#endif
1223 } 2165 }
1224
1225 ev_io_start (EV_A_ &pipe_w);
1226 ev_unref (EV_A); /* watcher should not keep loop alive */
1227 }
1228}
1229
1230inline_size void
1231evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1232{
1233 if (!*flag)
1234 {
1235 int old_errno = errno; /* save errno because write might clobber it */
1236
1237 *flag = 1;
1238
1239#if EV_USE_EVENTFD
1240 if (evfd >= 0)
1241 {
1242 uint64_t counter = 1;
1243 write (evfd, &counter, sizeof (uint64_t));
1244 }
1245 else
1246#endif
1247 write (evpipe [1], &old_errno, 1);
1248 2166
1249 errno = old_errno; 2167 errno = old_errno;
1250 } 2168 }
1251} 2169}
1252 2170
… …
1255static void 2173static void
1256pipecb (EV_P_ ev_io *iow, int revents) 2174pipecb (EV_P_ ev_io *iow, int revents)
1257{ 2175{
1258 int i; 2176 int i;
1259 2177
2178 if (revents & EV_READ)
2179 {
1260#if EV_USE_EVENTFD 2180#if EV_USE_EVENTFD
1261 if (evfd >= 0) 2181 if (evpipe [0] < 0)
1262 { 2182 {
1263 uint64_t counter; 2183 uint64_t counter;
1264 read (evfd, &counter, sizeof (uint64_t)); 2184 read (evpipe [1], &counter, sizeof (uint64_t));
1265 } 2185 }
1266 else 2186 else
1267#endif 2187#endif
1268 { 2188 {
1269 char dummy; 2189 char dummy[4];
2190#ifdef _WIN32
2191 WSABUF buf;
2192 DWORD recvd;
2193 DWORD flags = 0;
2194 buf.buf = dummy;
2195 buf.len = sizeof (dummy);
2196 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2197#else
1270 read (evpipe [0], &dummy, 1); 2198 read (evpipe [0], &dummy, sizeof (dummy));
2199#endif
2200 }
1271 } 2201 }
1272 2202
2203 pipe_write_skipped = 0;
2204
2205 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2206
2207#if EV_SIGNAL_ENABLE
1273 if (sig_pending) 2208 if (sig_pending)
1274 { 2209 {
1275 sig_pending = 0; 2210 sig_pending = 0;
2211
2212 ECB_MEMORY_FENCE;
1276 2213
1277 for (i = EV_NSIG - 1; i--; ) 2214 for (i = EV_NSIG - 1; i--; )
1278 if (expect_false (signals [i].pending)) 2215 if (expect_false (signals [i].pending))
1279 ev_feed_signal_event (EV_A_ i + 1); 2216 ev_feed_signal_event (EV_A_ i + 1);
1280 } 2217 }
2218#endif
1281 2219
1282#if EV_ASYNC_ENABLE 2220#if EV_ASYNC_ENABLE
1283 if (async_pending) 2221 if (async_pending)
1284 { 2222 {
1285 async_pending = 0; 2223 async_pending = 0;
2224
2225 ECB_MEMORY_FENCE;
1286 2226
1287 for (i = asynccnt; i--; ) 2227 for (i = asynccnt; i--; )
1288 if (asyncs [i]->sent) 2228 if (asyncs [i]->sent)
1289 { 2229 {
1290 asyncs [i]->sent = 0; 2230 asyncs [i]->sent = 0;
2231 ECB_MEMORY_FENCE_RELEASE;
1291 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2232 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1292 } 2233 }
1293 } 2234 }
1294#endif 2235#endif
1295} 2236}
1296 2237
1297/*****************************************************************************/ 2238/*****************************************************************************/
1298 2239
2240void
2241ev_feed_signal (int signum) EV_THROW
2242{
2243#if EV_MULTIPLICITY
2244 EV_P;
2245 ECB_MEMORY_FENCE_ACQUIRE;
2246 EV_A = signals [signum - 1].loop;
2247
2248 if (!EV_A)
2249 return;
2250#endif
2251
2252 signals [signum - 1].pending = 1;
2253 evpipe_write (EV_A_ &sig_pending);
2254}
2255
1299static void 2256static void
1300ev_sighandler (int signum) 2257ev_sighandler (int signum)
1301{ 2258{
1302#if EV_MULTIPLICITY
1303 EV_P = signals [signum - 1].loop;
1304#endif
1305
1306#ifdef _WIN32 2259#ifdef _WIN32
1307 signal (signum, ev_sighandler); 2260 signal (signum, ev_sighandler);
1308#endif 2261#endif
1309 2262
1310 signals [signum - 1].pending = 1; 2263 ev_feed_signal (signum);
1311 evpipe_write (EV_A_ &sig_pending);
1312} 2264}
1313 2265
1314void noinline 2266void noinline
1315ev_feed_signal_event (EV_P_ int signum) 2267ev_feed_signal_event (EV_P_ int signum) EV_THROW
1316{ 2268{
1317 WL w; 2269 WL w;
1318 2270
1319 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2271 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1320 return; 2272 return;
1321 2273
1322 --signum; 2274 --signum;
1323 2275
1324#if EV_MULTIPLICITY 2276#if EV_MULTIPLICITY
… …
1328 if (expect_false (signals [signum].loop != EV_A)) 2280 if (expect_false (signals [signum].loop != EV_A))
1329 return; 2281 return;
1330#endif 2282#endif
1331 2283
1332 signals [signum].pending = 0; 2284 signals [signum].pending = 0;
2285 ECB_MEMORY_FENCE_RELEASE;
1333 2286
1334 for (w = signals [signum].head; w; w = w->next) 2287 for (w = signals [signum].head; w; w = w->next)
1335 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2288 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1336} 2289}
1337 2290
… …
1353 break; 2306 break;
1354 } 2307 }
1355} 2308}
1356#endif 2309#endif
1357 2310
2311#endif
2312
1358/*****************************************************************************/ 2313/*****************************************************************************/
1359 2314
2315#if EV_CHILD_ENABLE
1360static WL childs [EV_PID_HASHSIZE]; 2316static WL childs [EV_PID_HASHSIZE];
1361
1362#ifndef _WIN32
1363 2317
1364static ev_signal childev; 2318static ev_signal childev;
1365 2319
1366#ifndef WIFCONTINUED 2320#ifndef WIFCONTINUED
1367# define WIFCONTINUED(status) 0 2321# define WIFCONTINUED(status) 0
… …
1372child_reap (EV_P_ int chain, int pid, int status) 2326child_reap (EV_P_ int chain, int pid, int status)
1373{ 2327{
1374 ev_child *w; 2328 ev_child *w;
1375 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2329 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1376 2330
1377 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2331 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1378 { 2332 {
1379 if ((w->pid == pid || !w->pid) 2333 if ((w->pid == pid || !w->pid)
1380 && (!traced || (w->flags & 1))) 2334 && (!traced || (w->flags & 1)))
1381 { 2335 {
1382 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2336 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1407 /* make sure we are called again until all children have been reaped */ 2361 /* make sure we are called again until all children have been reaped */
1408 /* we need to do it this way so that the callback gets called before we continue */ 2362 /* we need to do it this way so that the callback gets called before we continue */
1409 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2363 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1410 2364
1411 child_reap (EV_A_ pid, pid, status); 2365 child_reap (EV_A_ pid, pid, status);
1412 if (EV_PID_HASHSIZE > 1) 2366 if ((EV_PID_HASHSIZE) > 1)
1413 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2367 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1414} 2368}
1415 2369
1416#endif 2370#endif
1417 2371
1418/*****************************************************************************/ 2372/*****************************************************************************/
1419 2373
2374#if EV_USE_IOCP
2375# include "ev_iocp.c"
2376#endif
1420#if EV_USE_PORT 2377#if EV_USE_PORT
1421# include "ev_port.c" 2378# include "ev_port.c"
1422#endif 2379#endif
1423#if EV_USE_KQUEUE 2380#if EV_USE_KQUEUE
1424# include "ev_kqueue.c" 2381# include "ev_kqueue.c"
… …
1431#endif 2388#endif
1432#if EV_USE_SELECT 2389#if EV_USE_SELECT
1433# include "ev_select.c" 2390# include "ev_select.c"
1434#endif 2391#endif
1435 2392
1436int 2393int ecb_cold
1437ev_version_major (void) 2394ev_version_major (void) EV_THROW
1438{ 2395{
1439 return EV_VERSION_MAJOR; 2396 return EV_VERSION_MAJOR;
1440} 2397}
1441 2398
1442int 2399int ecb_cold
1443ev_version_minor (void) 2400ev_version_minor (void) EV_THROW
1444{ 2401{
1445 return EV_VERSION_MINOR; 2402 return EV_VERSION_MINOR;
1446} 2403}
1447 2404
1448/* return true if we are running with elevated privileges and should ignore env variables */ 2405/* return true if we are running with elevated privileges and should ignore env variables */
1449int inline_size 2406int inline_size ecb_cold
1450enable_secure (void) 2407enable_secure (void)
1451{ 2408{
1452#ifdef _WIN32 2409#ifdef _WIN32
1453 return 0; 2410 return 0;
1454#else 2411#else
1455 return getuid () != geteuid () 2412 return getuid () != geteuid ()
1456 || getgid () != getegid (); 2413 || getgid () != getegid ();
1457#endif 2414#endif
1458} 2415}
1459 2416
1460unsigned int 2417unsigned int ecb_cold
1461ev_supported_backends (void) 2418ev_supported_backends (void) EV_THROW
1462{ 2419{
1463 unsigned int flags = 0; 2420 unsigned int flags = 0;
1464 2421
1465 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2422 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1466 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2423 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1469 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2426 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1470 2427
1471 return flags; 2428 return flags;
1472} 2429}
1473 2430
1474unsigned int 2431unsigned int ecb_cold
1475ev_recommended_backends (void) 2432ev_recommended_backends (void) EV_THROW
1476{ 2433{
1477 unsigned int flags = ev_supported_backends (); 2434 unsigned int flags = ev_supported_backends ();
1478 2435
1479#ifndef __NetBSD__ 2436#ifndef __NetBSD__
1480 /* kqueue is borked on everything but netbsd apparently */ 2437 /* kqueue is borked on everything but netbsd apparently */
… …
1484#ifdef __APPLE__ 2441#ifdef __APPLE__
1485 /* only select works correctly on that "unix-certified" platform */ 2442 /* only select works correctly on that "unix-certified" platform */
1486 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2443 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1487 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2444 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1488#endif 2445#endif
2446#ifdef __FreeBSD__
2447 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2448#endif
1489 2449
1490 return flags; 2450 return flags;
1491} 2451}
1492 2452
2453unsigned int ecb_cold
2454ev_embeddable_backends (void) EV_THROW
2455{
2456 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2457
2458 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2459 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2460 flags &= ~EVBACKEND_EPOLL;
2461
2462 return flags;
2463}
2464
1493unsigned int 2465unsigned int
1494ev_embeddable_backends (void) 2466ev_backend (EV_P) EV_THROW
1495{ 2467{
1496 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2468 return backend;
1497
1498 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1499 /* please fix it and tell me how to detect the fix */
1500 flags &= ~EVBACKEND_EPOLL;
1501
1502 return flags;
1503} 2469}
1504 2470
2471#if EV_FEATURE_API
1505unsigned int 2472unsigned int
1506ev_backend (EV_P) 2473ev_iteration (EV_P) EV_THROW
1507{ 2474{
1508 return backend; 2475 return loop_count;
1509} 2476}
1510 2477
1511#if EV_MINIMAL < 2
1512unsigned int 2478unsigned int
1513ev_loop_count (EV_P) 2479ev_depth (EV_P) EV_THROW
1514{
1515 return loop_count;
1516}
1517
1518unsigned int
1519ev_loop_depth (EV_P)
1520{ 2480{
1521 return loop_depth; 2481 return loop_depth;
1522} 2482}
1523 2483
1524void 2484void
1525ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2485ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1526{ 2486{
1527 io_blocktime = interval; 2487 io_blocktime = interval;
1528} 2488}
1529 2489
1530void 2490void
1531ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2491ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1532{ 2492{
1533 timeout_blocktime = interval; 2493 timeout_blocktime = interval;
1534} 2494}
1535 2495
1536void 2496void
1537ev_set_userdata (EV_P_ void *data) 2497ev_set_userdata (EV_P_ void *data) EV_THROW
1538{ 2498{
1539 userdata = data; 2499 userdata = data;
1540} 2500}
1541 2501
1542void * 2502void *
1543ev_userdata (EV_P) 2503ev_userdata (EV_P) EV_THROW
1544{ 2504{
1545 return userdata; 2505 return userdata;
1546} 2506}
1547 2507
2508void
1548void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2509ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1549{ 2510{
1550 invoke_cb = invoke_pending_cb; 2511 invoke_cb = invoke_pending_cb;
1551} 2512}
1552 2513
2514void
1553void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2515ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1554{ 2516{
1555 release_cb = release; 2517 release_cb = release;
1556 acquire_cb = acquire; 2518 acquire_cb = acquire;
1557} 2519}
1558#endif 2520#endif
1559 2521
1560/* initialise a loop structure, must be zero-initialised */ 2522/* initialise a loop structure, must be zero-initialised */
1561static void noinline 2523static void noinline ecb_cold
1562loop_init (EV_P_ unsigned int flags) 2524loop_init (EV_P_ unsigned int flags) EV_THROW
1563{ 2525{
1564 if (!backend) 2526 if (!backend)
1565 { 2527 {
2528 origflags = flags;
2529
1566#if EV_USE_REALTIME 2530#if EV_USE_REALTIME
1567 if (!have_realtime) 2531 if (!have_realtime)
1568 { 2532 {
1569 struct timespec ts; 2533 struct timespec ts;
1570 2534
… …
1592 if (!(flags & EVFLAG_NOENV) 2556 if (!(flags & EVFLAG_NOENV)
1593 && !enable_secure () 2557 && !enable_secure ()
1594 && getenv ("LIBEV_FLAGS")) 2558 && getenv ("LIBEV_FLAGS"))
1595 flags = atoi (getenv ("LIBEV_FLAGS")); 2559 flags = atoi (getenv ("LIBEV_FLAGS"));
1596 2560
1597 ev_rt_now = ev_time (); 2561 ev_rt_now = ev_time ();
1598 mn_now = get_clock (); 2562 mn_now = get_clock ();
1599 now_floor = mn_now; 2563 now_floor = mn_now;
1600 rtmn_diff = ev_rt_now - mn_now; 2564 rtmn_diff = ev_rt_now - mn_now;
1601#if EV_MINIMAL < 2 2565#if EV_FEATURE_API
1602 invoke_cb = ev_invoke_pending; 2566 invoke_cb = ev_invoke_pending;
1603#endif 2567#endif
1604 2568
1605 io_blocktime = 0.; 2569 io_blocktime = 0.;
1606 timeout_blocktime = 0.; 2570 timeout_blocktime = 0.;
1607 backend = 0; 2571 backend = 0;
1608 backend_fd = -1; 2572 backend_fd = -1;
1609 sig_pending = 0; 2573 sig_pending = 0;
1610#if EV_ASYNC_ENABLE 2574#if EV_ASYNC_ENABLE
1611 async_pending = 0; 2575 async_pending = 0;
1612#endif 2576#endif
2577 pipe_write_skipped = 0;
2578 pipe_write_wanted = 0;
2579 evpipe [0] = -1;
2580 evpipe [1] = -1;
1613#if EV_USE_INOTIFY 2581#if EV_USE_INOTIFY
1614 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2582 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1615#endif 2583#endif
1616#if EV_USE_SIGNALFD 2584#if EV_USE_SIGNALFD
1617 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2585 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1618#endif 2586#endif
1619 2587
1620 if (!(flags & 0x0000ffffU)) 2588 if (!(flags & EVBACKEND_MASK))
1621 flags |= ev_recommended_backends (); 2589 flags |= ev_recommended_backends ();
1622 2590
2591#if EV_USE_IOCP
2592 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2593#endif
1623#if EV_USE_PORT 2594#if EV_USE_PORT
1624 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2595 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1625#endif 2596#endif
1626#if EV_USE_KQUEUE 2597#if EV_USE_KQUEUE
1627 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2598 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1636 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2607 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1637#endif 2608#endif
1638 2609
1639 ev_prepare_init (&pending_w, pendingcb); 2610 ev_prepare_init (&pending_w, pendingcb);
1640 2611
2612#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1641 ev_init (&pipe_w, pipecb); 2613 ev_init (&pipe_w, pipecb);
1642 ev_set_priority (&pipe_w, EV_MAXPRI); 2614 ev_set_priority (&pipe_w, EV_MAXPRI);
2615#endif
1643 } 2616 }
1644} 2617}
1645 2618
1646/* free up a loop structure */ 2619/* free up a loop structure */
1647static void noinline 2620void ecb_cold
1648loop_destroy (EV_P) 2621ev_loop_destroy (EV_P)
1649{ 2622{
1650 int i; 2623 int i;
2624
2625#if EV_MULTIPLICITY
2626 /* mimic free (0) */
2627 if (!EV_A)
2628 return;
2629#endif
2630
2631#if EV_CLEANUP_ENABLE
2632 /* queue cleanup watchers (and execute them) */
2633 if (expect_false (cleanupcnt))
2634 {
2635 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2636 EV_INVOKE_PENDING;
2637 }
2638#endif
2639
2640#if EV_CHILD_ENABLE
2641 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2642 {
2643 ev_ref (EV_A); /* child watcher */
2644 ev_signal_stop (EV_A_ &childev);
2645 }
2646#endif
1651 2647
1652 if (ev_is_active (&pipe_w)) 2648 if (ev_is_active (&pipe_w))
1653 { 2649 {
1654 /*ev_ref (EV_A);*/ 2650 /*ev_ref (EV_A);*/
1655 /*ev_io_stop (EV_A_ &pipe_w);*/ 2651 /*ev_io_stop (EV_A_ &pipe_w);*/
1656 2652
1657#if EV_USE_EVENTFD
1658 if (evfd >= 0)
1659 close (evfd);
1660#endif
1661
1662 if (evpipe [0] >= 0)
1663 {
1664 EV_WIN32_CLOSE_FD (evpipe [0]); 2653 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1665 EV_WIN32_CLOSE_FD (evpipe [1]); 2654 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1666 }
1667 } 2655 }
1668 2656
1669#if EV_USE_SIGNALFD 2657#if EV_USE_SIGNALFD
1670 if (ev_is_active (&sigfd_w)) 2658 if (ev_is_active (&sigfd_w))
1671 close (sigfd); 2659 close (sigfd);
… …
1677#endif 2665#endif
1678 2666
1679 if (backend_fd >= 0) 2667 if (backend_fd >= 0)
1680 close (backend_fd); 2668 close (backend_fd);
1681 2669
2670#if EV_USE_IOCP
2671 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2672#endif
1682#if EV_USE_PORT 2673#if EV_USE_PORT
1683 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2674 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1684#endif 2675#endif
1685#if EV_USE_KQUEUE 2676#if EV_USE_KQUEUE
1686 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2677 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1713 array_free (periodic, EMPTY); 2704 array_free (periodic, EMPTY);
1714#endif 2705#endif
1715#if EV_FORK_ENABLE 2706#if EV_FORK_ENABLE
1716 array_free (fork, EMPTY); 2707 array_free (fork, EMPTY);
1717#endif 2708#endif
2709#if EV_CLEANUP_ENABLE
2710 array_free (cleanup, EMPTY);
2711#endif
1718 array_free (prepare, EMPTY); 2712 array_free (prepare, EMPTY);
1719 array_free (check, EMPTY); 2713 array_free (check, EMPTY);
1720#if EV_ASYNC_ENABLE 2714#if EV_ASYNC_ENABLE
1721 array_free (async, EMPTY); 2715 array_free (async, EMPTY);
1722#endif 2716#endif
1723 2717
1724 backend = 0; 2718 backend = 0;
2719
2720#if EV_MULTIPLICITY
2721 if (ev_is_default_loop (EV_A))
2722#endif
2723 ev_default_loop_ptr = 0;
2724#if EV_MULTIPLICITY
2725 else
2726 ev_free (EV_A);
2727#endif
1725} 2728}
1726 2729
1727#if EV_USE_INOTIFY 2730#if EV_USE_INOTIFY
1728inline_size void infy_fork (EV_P); 2731inline_size void infy_fork (EV_P);
1729#endif 2732#endif
… …
1742#endif 2745#endif
1743#if EV_USE_INOTIFY 2746#if EV_USE_INOTIFY
1744 infy_fork (EV_A); 2747 infy_fork (EV_A);
1745#endif 2748#endif
1746 2749
2750#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1747 if (ev_is_active (&pipe_w)) 2751 if (ev_is_active (&pipe_w))
1748 { 2752 {
1749 /* this "locks" the handlers against writing to the pipe */ 2753 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1750 /* while we modify the fd vars */
1751 sig_pending = 1;
1752#if EV_ASYNC_ENABLE
1753 async_pending = 1;
1754#endif
1755 2754
1756 ev_ref (EV_A); 2755 ev_ref (EV_A);
1757 ev_io_stop (EV_A_ &pipe_w); 2756 ev_io_stop (EV_A_ &pipe_w);
1758 2757
1759#if EV_USE_EVENTFD
1760 if (evfd >= 0)
1761 close (evfd);
1762#endif
1763
1764 if (evpipe [0] >= 0) 2758 if (evpipe [0] >= 0)
1765 {
1766 EV_WIN32_CLOSE_FD (evpipe [0]); 2759 EV_WIN32_CLOSE_FD (evpipe [0]);
1767 EV_WIN32_CLOSE_FD (evpipe [1]);
1768 }
1769 2760
1770 evpipe_init (EV_A); 2761 evpipe_init (EV_A);
1771 /* now iterate over everything, in case we missed something */ 2762 /* iterate over everything, in case we missed something before */
1772 pipecb (EV_A_ &pipe_w, EV_READ); 2763 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1773 } 2764 }
2765#endif
1774 2766
1775 postfork = 0; 2767 postfork = 0;
1776} 2768}
1777 2769
1778#if EV_MULTIPLICITY 2770#if EV_MULTIPLICITY
1779 2771
1780struct ev_loop * 2772struct ev_loop * ecb_cold
1781ev_loop_new (unsigned int flags) 2773ev_loop_new (unsigned int flags) EV_THROW
1782{ 2774{
1783 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2775 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1784 2776
1785 memset (EV_A, 0, sizeof (struct ev_loop)); 2777 memset (EV_A, 0, sizeof (struct ev_loop));
1786 loop_init (EV_A_ flags); 2778 loop_init (EV_A_ flags);
1787 2779
1788 if (ev_backend (EV_A)) 2780 if (ev_backend (EV_A))
1789 return EV_A; 2781 return EV_A;
1790 2782
2783 ev_free (EV_A);
1791 return 0; 2784 return 0;
1792} 2785}
1793 2786
1794void
1795ev_loop_destroy (EV_P)
1796{
1797 loop_destroy (EV_A);
1798 ev_free (loop);
1799}
1800
1801void
1802ev_loop_fork (EV_P)
1803{
1804 postfork = 1; /* must be in line with ev_default_fork */
1805}
1806#endif /* multiplicity */ 2787#endif /* multiplicity */
1807 2788
1808#if EV_VERIFY 2789#if EV_VERIFY
1809static void noinline 2790static void noinline ecb_cold
1810verify_watcher (EV_P_ W w) 2791verify_watcher (EV_P_ W w)
1811{ 2792{
1812 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2793 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1813 2794
1814 if (w->pending) 2795 if (w->pending)
1815 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2796 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1816} 2797}
1817 2798
1818static void noinline 2799static void noinline ecb_cold
1819verify_heap (EV_P_ ANHE *heap, int N) 2800verify_heap (EV_P_ ANHE *heap, int N)
1820{ 2801{
1821 int i; 2802 int i;
1822 2803
1823 for (i = HEAP0; i < N + HEAP0; ++i) 2804 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1828 2809
1829 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2810 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1830 } 2811 }
1831} 2812}
1832 2813
1833static void noinline 2814static void noinline ecb_cold
1834array_verify (EV_P_ W *ws, int cnt) 2815array_verify (EV_P_ W *ws, int cnt)
1835{ 2816{
1836 while (cnt--) 2817 while (cnt--)
1837 { 2818 {
1838 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2819 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1839 verify_watcher (EV_A_ ws [cnt]); 2820 verify_watcher (EV_A_ ws [cnt]);
1840 } 2821 }
1841} 2822}
1842#endif 2823#endif
1843 2824
1844#if EV_MINIMAL < 2 2825#if EV_FEATURE_API
1845void 2826void ecb_cold
1846ev_loop_verify (EV_P) 2827ev_verify (EV_P) EV_THROW
1847{ 2828{
1848#if EV_VERIFY 2829#if EV_VERIFY
1849 int i; 2830 int i;
1850 WL w; 2831 WL w, w2;
1851 2832
1852 assert (activecnt >= -1); 2833 assert (activecnt >= -1);
1853 2834
1854 assert (fdchangemax >= fdchangecnt); 2835 assert (fdchangemax >= fdchangecnt);
1855 for (i = 0; i < fdchangecnt; ++i) 2836 for (i = 0; i < fdchangecnt; ++i)
1856 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2837 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1857 2838
1858 assert (anfdmax >= 0); 2839 assert (anfdmax >= 0);
1859 for (i = 0; i < anfdmax; ++i) 2840 for (i = 0; i < anfdmax; ++i)
2841 {
2842 int j = 0;
2843
1860 for (w = anfds [i].head; w; w = w->next) 2844 for (w = w2 = anfds [i].head; w; w = w->next)
1861 { 2845 {
1862 verify_watcher (EV_A_ (W)w); 2846 verify_watcher (EV_A_ (W)w);
2847
2848 if (j++ & 1)
2849 {
2850 assert (("libev: io watcher list contains a loop", w != w2));
2851 w2 = w2->next;
2852 }
2853
1863 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2854 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1864 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2855 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1865 } 2856 }
2857 }
1866 2858
1867 assert (timermax >= timercnt); 2859 assert (timermax >= timercnt);
1868 verify_heap (EV_A_ timers, timercnt); 2860 verify_heap (EV_A_ timers, timercnt);
1869 2861
1870#if EV_PERIODIC_ENABLE 2862#if EV_PERIODIC_ENABLE
… …
1885#if EV_FORK_ENABLE 2877#if EV_FORK_ENABLE
1886 assert (forkmax >= forkcnt); 2878 assert (forkmax >= forkcnt);
1887 array_verify (EV_A_ (W *)forks, forkcnt); 2879 array_verify (EV_A_ (W *)forks, forkcnt);
1888#endif 2880#endif
1889 2881
2882#if EV_CLEANUP_ENABLE
2883 assert (cleanupmax >= cleanupcnt);
2884 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2885#endif
2886
1890#if EV_ASYNC_ENABLE 2887#if EV_ASYNC_ENABLE
1891 assert (asyncmax >= asynccnt); 2888 assert (asyncmax >= asynccnt);
1892 array_verify (EV_A_ (W *)asyncs, asynccnt); 2889 array_verify (EV_A_ (W *)asyncs, asynccnt);
1893#endif 2890#endif
1894 2891
2892#if EV_PREPARE_ENABLE
1895 assert (preparemax >= preparecnt); 2893 assert (preparemax >= preparecnt);
1896 array_verify (EV_A_ (W *)prepares, preparecnt); 2894 array_verify (EV_A_ (W *)prepares, preparecnt);
2895#endif
1897 2896
2897#if EV_CHECK_ENABLE
1898 assert (checkmax >= checkcnt); 2898 assert (checkmax >= checkcnt);
1899 array_verify (EV_A_ (W *)checks, checkcnt); 2899 array_verify (EV_A_ (W *)checks, checkcnt);
2900#endif
1900 2901
1901# if 0 2902# if 0
2903#if EV_CHILD_ENABLE
1902 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2904 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1903 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2905 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2906#endif
1904# endif 2907# endif
1905#endif 2908#endif
1906} 2909}
1907#endif 2910#endif
1908 2911
1909#if EV_MULTIPLICITY 2912#if EV_MULTIPLICITY
1910struct ev_loop * 2913struct ev_loop * ecb_cold
1911ev_default_loop_init (unsigned int flags)
1912#else 2914#else
1913int 2915int
2916#endif
1914ev_default_loop (unsigned int flags) 2917ev_default_loop (unsigned int flags) EV_THROW
1915#endif
1916{ 2918{
1917 if (!ev_default_loop_ptr) 2919 if (!ev_default_loop_ptr)
1918 { 2920 {
1919#if EV_MULTIPLICITY 2921#if EV_MULTIPLICITY
1920 EV_P = ev_default_loop_ptr = &default_loop_struct; 2922 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1924 2926
1925 loop_init (EV_A_ flags); 2927 loop_init (EV_A_ flags);
1926 2928
1927 if (ev_backend (EV_A)) 2929 if (ev_backend (EV_A))
1928 { 2930 {
1929#ifndef _WIN32 2931#if EV_CHILD_ENABLE
1930 ev_signal_init (&childev, childcb, SIGCHLD); 2932 ev_signal_init (&childev, childcb, SIGCHLD);
1931 ev_set_priority (&childev, EV_MAXPRI); 2933 ev_set_priority (&childev, EV_MAXPRI);
1932 ev_signal_start (EV_A_ &childev); 2934 ev_signal_start (EV_A_ &childev);
1933 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2935 ev_unref (EV_A); /* child watcher should not keep loop alive */
1934#endif 2936#endif
… …
1939 2941
1940 return ev_default_loop_ptr; 2942 return ev_default_loop_ptr;
1941} 2943}
1942 2944
1943void 2945void
1944ev_default_destroy (void) 2946ev_loop_fork (EV_P) EV_THROW
1945{ 2947{
1946#if EV_MULTIPLICITY 2948 postfork = 1;
1947 EV_P = ev_default_loop_ptr;
1948#endif
1949
1950 ev_default_loop_ptr = 0;
1951
1952#ifndef _WIN32
1953 ev_ref (EV_A); /* child watcher */
1954 ev_signal_stop (EV_A_ &childev);
1955#endif
1956
1957 loop_destroy (EV_A);
1958}
1959
1960void
1961ev_default_fork (void)
1962{
1963#if EV_MULTIPLICITY
1964 EV_P = ev_default_loop_ptr;
1965#endif
1966
1967 postfork = 1; /* must be in line with ev_loop_fork */
1968} 2949}
1969 2950
1970/*****************************************************************************/ 2951/*****************************************************************************/
1971 2952
1972void 2953void
… …
1974{ 2955{
1975 EV_CB_INVOKE ((W)w, revents); 2956 EV_CB_INVOKE ((W)w, revents);
1976} 2957}
1977 2958
1978unsigned int 2959unsigned int
1979ev_pending_count (EV_P) 2960ev_pending_count (EV_P) EV_THROW
1980{ 2961{
1981 int pri; 2962 int pri;
1982 unsigned int count = 0; 2963 unsigned int count = 0;
1983 2964
1984 for (pri = NUMPRI; pri--; ) 2965 for (pri = NUMPRI; pri--; )
… …
1988} 2969}
1989 2970
1990void noinline 2971void noinline
1991ev_invoke_pending (EV_P) 2972ev_invoke_pending (EV_P)
1992{ 2973{
1993 int pri; 2974 pendingpri = NUMPRI;
1994 2975
1995 for (pri = NUMPRI; pri--; ) 2976 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2977 {
2978 --pendingpri;
2979
1996 while (pendingcnt [pri]) 2980 while (pendingcnt [pendingpri])
1997 { 2981 {
1998 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2982 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1999 2983
2000 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2001 /* ^ this is no longer true, as pending_w could be here */
2002
2003 p->w->pending = 0; 2984 p->w->pending = 0;
2004 EV_CB_INVOKE (p->w, p->events); 2985 EV_CB_INVOKE (p->w, p->events);
2005 EV_FREQUENT_CHECK; 2986 EV_FREQUENT_CHECK;
2006 } 2987 }
2988 }
2007} 2989}
2008 2990
2009#if EV_IDLE_ENABLE 2991#if EV_IDLE_ENABLE
2010/* make idle watchers pending. this handles the "call-idle */ 2992/* make idle watchers pending. this handles the "call-idle */
2011/* only when higher priorities are idle" logic */ 2993/* only when higher priorities are idle" logic */
… …
2063 EV_FREQUENT_CHECK; 3045 EV_FREQUENT_CHECK;
2064 feed_reverse (EV_A_ (W)w); 3046 feed_reverse (EV_A_ (W)w);
2065 } 3047 }
2066 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 3048 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2067 3049
2068 feed_reverse_done (EV_A_ EV_TIMEOUT); 3050 feed_reverse_done (EV_A_ EV_TIMER);
2069 } 3051 }
2070} 3052}
2071 3053
2072#if EV_PERIODIC_ENABLE 3054#if EV_PERIODIC_ENABLE
3055
3056static void noinline
3057periodic_recalc (EV_P_ ev_periodic *w)
3058{
3059 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3060 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3061
3062 /* the above almost always errs on the low side */
3063 while (at <= ev_rt_now)
3064 {
3065 ev_tstamp nat = at + w->interval;
3066
3067 /* when resolution fails us, we use ev_rt_now */
3068 if (expect_false (nat == at))
3069 {
3070 at = ev_rt_now;
3071 break;
3072 }
3073
3074 at = nat;
3075 }
3076
3077 ev_at (w) = at;
3078}
3079
2073/* make periodics pending */ 3080/* make periodics pending */
2074inline_size void 3081inline_size void
2075periodics_reify (EV_P) 3082periodics_reify (EV_P)
2076{ 3083{
2077 EV_FREQUENT_CHECK; 3084 EV_FREQUENT_CHECK;
2078 3085
2079 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3086 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2080 { 3087 {
2081 int feed_count = 0;
2082
2083 do 3088 do
2084 { 3089 {
2085 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3090 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2086 3091
2087 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3092 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2096 ANHE_at_cache (periodics [HEAP0]); 3101 ANHE_at_cache (periodics [HEAP0]);
2097 downheap (periodics, periodiccnt, HEAP0); 3102 downheap (periodics, periodiccnt, HEAP0);
2098 } 3103 }
2099 else if (w->interval) 3104 else if (w->interval)
2100 { 3105 {
2101 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3106 periodic_recalc (EV_A_ w);
2102 /* if next trigger time is not sufficiently in the future, put it there */
2103 /* this might happen because of floating point inexactness */
2104 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2105 {
2106 ev_at (w) += w->interval;
2107
2108 /* if interval is unreasonably low we might still have a time in the past */
2109 /* so correct this. this will make the periodic very inexact, but the user */
2110 /* has effectively asked to get triggered more often than possible */
2111 if (ev_at (w) < ev_rt_now)
2112 ev_at (w) = ev_rt_now;
2113 }
2114
2115 ANHE_at_cache (periodics [HEAP0]); 3107 ANHE_at_cache (periodics [HEAP0]);
2116 downheap (periodics, periodiccnt, HEAP0); 3108 downheap (periodics, periodiccnt, HEAP0);
2117 } 3109 }
2118 else 3110 else
2119 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3111 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2126 feed_reverse_done (EV_A_ EV_PERIODIC); 3118 feed_reverse_done (EV_A_ EV_PERIODIC);
2127 } 3119 }
2128} 3120}
2129 3121
2130/* simply recalculate all periodics */ 3122/* simply recalculate all periodics */
2131/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 3123/* TODO: maybe ensure that at least one event happens when jumping forward? */
2132static void noinline 3124static void noinline ecb_cold
2133periodics_reschedule (EV_P) 3125periodics_reschedule (EV_P)
2134{ 3126{
2135 int i; 3127 int i;
2136 3128
2137 /* adjust periodics after time jump */ 3129 /* adjust periodics after time jump */
… …
2140 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3132 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2141 3133
2142 if (w->reschedule_cb) 3134 if (w->reschedule_cb)
2143 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3135 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2144 else if (w->interval) 3136 else if (w->interval)
2145 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3137 periodic_recalc (EV_A_ w);
2146 3138
2147 ANHE_at_cache (periodics [i]); 3139 ANHE_at_cache (periodics [i]);
2148 } 3140 }
2149 3141
2150 reheap (periodics, periodiccnt); 3142 reheap (periodics, periodiccnt);
2151} 3143}
2152#endif 3144#endif
2153 3145
2154/* adjust all timers by a given offset */ 3146/* adjust all timers by a given offset */
2155static void noinline 3147static void noinline ecb_cold
2156timers_reschedule (EV_P_ ev_tstamp adjust) 3148timers_reschedule (EV_P_ ev_tstamp adjust)
2157{ 3149{
2158 int i; 3150 int i;
2159 3151
2160 for (i = 0; i < timercnt; ++i) 3152 for (i = 0; i < timercnt; ++i)
… …
2197 * doesn't hurt either as we only do this on time-jumps or 3189 * doesn't hurt either as we only do this on time-jumps or
2198 * in the unlikely event of having been preempted here. 3190 * in the unlikely event of having been preempted here.
2199 */ 3191 */
2200 for (i = 4; --i; ) 3192 for (i = 4; --i; )
2201 { 3193 {
3194 ev_tstamp diff;
2202 rtmn_diff = ev_rt_now - mn_now; 3195 rtmn_diff = ev_rt_now - mn_now;
2203 3196
3197 diff = odiff - rtmn_diff;
3198
2204 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3199 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2205 return; /* all is well */ 3200 return; /* all is well */
2206 3201
2207 ev_rt_now = ev_time (); 3202 ev_rt_now = ev_time ();
2208 mn_now = get_clock (); 3203 mn_now = get_clock ();
2209 now_floor = mn_now; 3204 now_floor = mn_now;
… …
2231 3226
2232 mn_now = ev_rt_now; 3227 mn_now = ev_rt_now;
2233 } 3228 }
2234} 3229}
2235 3230
2236void 3231int
2237ev_loop (EV_P_ int flags) 3232ev_run (EV_P_ int flags)
2238{ 3233{
2239#if EV_MINIMAL < 2 3234#if EV_FEATURE_API
2240 ++loop_depth; 3235 ++loop_depth;
2241#endif 3236#endif
2242 3237
2243 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3238 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2244 3239
2245 loop_done = EVUNLOOP_CANCEL; 3240 loop_done = EVBREAK_CANCEL;
2246 3241
2247 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3242 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2248 3243
2249 do 3244 do
2250 { 3245 {
2251#if EV_VERIFY >= 2 3246#if EV_VERIFY >= 2
2252 ev_loop_verify (EV_A); 3247 ev_verify (EV_A);
2253#endif 3248#endif
2254 3249
2255#ifndef _WIN32 3250#ifndef _WIN32
2256 if (expect_false (curpid)) /* penalise the forking check even more */ 3251 if (expect_false (curpid)) /* penalise the forking check even more */
2257 if (expect_false (getpid () != curpid)) 3252 if (expect_false (getpid () != curpid))
… …
2269 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3264 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2270 EV_INVOKE_PENDING; 3265 EV_INVOKE_PENDING;
2271 } 3266 }
2272#endif 3267#endif
2273 3268
3269#if EV_PREPARE_ENABLE
2274 /* queue prepare watchers (and execute them) */ 3270 /* queue prepare watchers (and execute them) */
2275 if (expect_false (preparecnt)) 3271 if (expect_false (preparecnt))
2276 { 3272 {
2277 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3273 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2278 EV_INVOKE_PENDING; 3274 EV_INVOKE_PENDING;
2279 } 3275 }
3276#endif
2280 3277
2281 if (expect_false (loop_done)) 3278 if (expect_false (loop_done))
2282 break; 3279 break;
2283 3280
2284 /* we might have forked, so reify kernel state if necessary */ 3281 /* we might have forked, so reify kernel state if necessary */
… …
2291 /* calculate blocking time */ 3288 /* calculate blocking time */
2292 { 3289 {
2293 ev_tstamp waittime = 0.; 3290 ev_tstamp waittime = 0.;
2294 ev_tstamp sleeptime = 0.; 3291 ev_tstamp sleeptime = 0.;
2295 3292
3293 /* remember old timestamp for io_blocktime calculation */
3294 ev_tstamp prev_mn_now = mn_now;
3295
3296 /* update time to cancel out callback processing overhead */
3297 time_update (EV_A_ 1e100);
3298
3299 /* from now on, we want a pipe-wake-up */
3300 pipe_write_wanted = 1;
3301
3302 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3303
2296 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3304 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2297 { 3305 {
2298 /* remember old timestamp for io_blocktime calculation */
2299 ev_tstamp prev_mn_now = mn_now;
2300
2301 /* update time to cancel out callback processing overhead */
2302 time_update (EV_A_ 1e100);
2303
2304 waittime = MAX_BLOCKTIME; 3306 waittime = MAX_BLOCKTIME;
2305 3307
2306 if (timercnt) 3308 if (timercnt)
2307 { 3309 {
2308 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3310 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2309 if (waittime > to) waittime = to; 3311 if (waittime > to) waittime = to;
2310 } 3312 }
2311 3313
2312#if EV_PERIODIC_ENABLE 3314#if EV_PERIODIC_ENABLE
2313 if (periodiccnt) 3315 if (periodiccnt)
2314 { 3316 {
2315 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3317 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2316 if (waittime > to) waittime = to; 3318 if (waittime > to) waittime = to;
2317 } 3319 }
2318#endif 3320#endif
2319 3321
2320 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3322 /* don't let timeouts decrease the waittime below timeout_blocktime */
2321 if (expect_false (waittime < timeout_blocktime)) 3323 if (expect_false (waittime < timeout_blocktime))
2322 waittime = timeout_blocktime; 3324 waittime = timeout_blocktime;
3325
3326 /* at this point, we NEED to wait, so we have to ensure */
3327 /* to pass a minimum nonzero value to the backend */
3328 if (expect_false (waittime < backend_mintime))
3329 waittime = backend_mintime;
2323 3330
2324 /* extra check because io_blocktime is commonly 0 */ 3331 /* extra check because io_blocktime is commonly 0 */
2325 if (expect_false (io_blocktime)) 3332 if (expect_false (io_blocktime))
2326 { 3333 {
2327 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3334 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2328 3335
2329 if (sleeptime > waittime - backend_fudge) 3336 if (sleeptime > waittime - backend_mintime)
2330 sleeptime = waittime - backend_fudge; 3337 sleeptime = waittime - backend_mintime;
2331 3338
2332 if (expect_true (sleeptime > 0.)) 3339 if (expect_true (sleeptime > 0.))
2333 { 3340 {
2334 ev_sleep (sleeptime); 3341 ev_sleep (sleeptime);
2335 waittime -= sleeptime; 3342 waittime -= sleeptime;
2336 } 3343 }
2337 } 3344 }
2338 } 3345 }
2339 3346
2340#if EV_MINIMAL < 2 3347#if EV_FEATURE_API
2341 ++loop_count; 3348 ++loop_count;
2342#endif 3349#endif
2343 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3350 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2344 backend_poll (EV_A_ waittime); 3351 backend_poll (EV_A_ waittime);
2345 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3352 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3353
3354 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3355
3356 ECB_MEMORY_FENCE_ACQUIRE;
3357 if (pipe_write_skipped)
3358 {
3359 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3360 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3361 }
3362
2346 3363
2347 /* update ev_rt_now, do magic */ 3364 /* update ev_rt_now, do magic */
2348 time_update (EV_A_ waittime + sleeptime); 3365 time_update (EV_A_ waittime + sleeptime);
2349 } 3366 }
2350 3367
… …
2357#if EV_IDLE_ENABLE 3374#if EV_IDLE_ENABLE
2358 /* queue idle watchers unless other events are pending */ 3375 /* queue idle watchers unless other events are pending */
2359 idle_reify (EV_A); 3376 idle_reify (EV_A);
2360#endif 3377#endif
2361 3378
3379#if EV_CHECK_ENABLE
2362 /* queue check watchers, to be executed first */ 3380 /* queue check watchers, to be executed first */
2363 if (expect_false (checkcnt)) 3381 if (expect_false (checkcnt))
2364 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3382 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3383#endif
2365 3384
2366 EV_INVOKE_PENDING; 3385 EV_INVOKE_PENDING;
2367 } 3386 }
2368 while (expect_true ( 3387 while (expect_true (
2369 activecnt 3388 activecnt
2370 && !loop_done 3389 && !loop_done
2371 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3390 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2372 )); 3391 ));
2373 3392
2374 if (loop_done == EVUNLOOP_ONE) 3393 if (loop_done == EVBREAK_ONE)
2375 loop_done = EVUNLOOP_CANCEL; 3394 loop_done = EVBREAK_CANCEL;
2376 3395
2377#if EV_MINIMAL < 2 3396#if EV_FEATURE_API
2378 --loop_depth; 3397 --loop_depth;
2379#endif 3398#endif
3399
3400 return activecnt;
2380} 3401}
2381 3402
2382void 3403void
2383ev_unloop (EV_P_ int how) 3404ev_break (EV_P_ int how) EV_THROW
2384{ 3405{
2385 loop_done = how; 3406 loop_done = how;
2386} 3407}
2387 3408
2388void 3409void
2389ev_ref (EV_P) 3410ev_ref (EV_P) EV_THROW
2390{ 3411{
2391 ++activecnt; 3412 ++activecnt;
2392} 3413}
2393 3414
2394void 3415void
2395ev_unref (EV_P) 3416ev_unref (EV_P) EV_THROW
2396{ 3417{
2397 --activecnt; 3418 --activecnt;
2398} 3419}
2399 3420
2400void 3421void
2401ev_now_update (EV_P) 3422ev_now_update (EV_P) EV_THROW
2402{ 3423{
2403 time_update (EV_A_ 1e100); 3424 time_update (EV_A_ 1e100);
2404} 3425}
2405 3426
2406void 3427void
2407ev_suspend (EV_P) 3428ev_suspend (EV_P) EV_THROW
2408{ 3429{
2409 ev_now_update (EV_A); 3430 ev_now_update (EV_A);
2410} 3431}
2411 3432
2412void 3433void
2413ev_resume (EV_P) 3434ev_resume (EV_P) EV_THROW
2414{ 3435{
2415 ev_tstamp mn_prev = mn_now; 3436 ev_tstamp mn_prev = mn_now;
2416 3437
2417 ev_now_update (EV_A); 3438 ev_now_update (EV_A);
2418 timers_reschedule (EV_A_ mn_now - mn_prev); 3439 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2457 w->pending = 0; 3478 w->pending = 0;
2458 } 3479 }
2459} 3480}
2460 3481
2461int 3482int
2462ev_clear_pending (EV_P_ void *w) 3483ev_clear_pending (EV_P_ void *w) EV_THROW
2463{ 3484{
2464 W w_ = (W)w; 3485 W w_ = (W)w;
2465 int pending = w_->pending; 3486 int pending = w_->pending;
2466 3487
2467 if (expect_true (pending)) 3488 if (expect_true (pending))
… …
2500} 3521}
2501 3522
2502/*****************************************************************************/ 3523/*****************************************************************************/
2503 3524
2504void noinline 3525void noinline
2505ev_io_start (EV_P_ ev_io *w) 3526ev_io_start (EV_P_ ev_io *w) EV_THROW
2506{ 3527{
2507 int fd = w->fd; 3528 int fd = w->fd;
2508 3529
2509 if (expect_false (ev_is_active (w))) 3530 if (expect_false (ev_is_active (w)))
2510 return; 3531 return;
… …
2516 3537
2517 ev_start (EV_A_ (W)w, 1); 3538 ev_start (EV_A_ (W)w, 1);
2518 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2519 wlist_add (&anfds[fd].head, (WL)w); 3540 wlist_add (&anfds[fd].head, (WL)w);
2520 3541
3542 /* common bug, apparently */
3543 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3544
2521 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3545 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2522 w->events &= ~EV__IOFDSET; 3546 w->events &= ~EV__IOFDSET;
2523 3547
2524 EV_FREQUENT_CHECK; 3548 EV_FREQUENT_CHECK;
2525} 3549}
2526 3550
2527void noinline 3551void noinline
2528ev_io_stop (EV_P_ ev_io *w) 3552ev_io_stop (EV_P_ ev_io *w) EV_THROW
2529{ 3553{
2530 clear_pending (EV_A_ (W)w); 3554 clear_pending (EV_A_ (W)w);
2531 if (expect_false (!ev_is_active (w))) 3555 if (expect_false (!ev_is_active (w)))
2532 return; 3556 return;
2533 3557
… …
2536 EV_FREQUENT_CHECK; 3560 EV_FREQUENT_CHECK;
2537 3561
2538 wlist_del (&anfds[w->fd].head, (WL)w); 3562 wlist_del (&anfds[w->fd].head, (WL)w);
2539 ev_stop (EV_A_ (W)w); 3563 ev_stop (EV_A_ (W)w);
2540 3564
2541 fd_change (EV_A_ w->fd, 1); 3565 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2542 3566
2543 EV_FREQUENT_CHECK; 3567 EV_FREQUENT_CHECK;
2544} 3568}
2545 3569
2546void noinline 3570void noinline
2547ev_timer_start (EV_P_ ev_timer *w) 3571ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2548{ 3572{
2549 if (expect_false (ev_is_active (w))) 3573 if (expect_false (ev_is_active (w)))
2550 return; 3574 return;
2551 3575
2552 ev_at (w) += mn_now; 3576 ev_at (w) += mn_now;
… …
2566 3590
2567 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3591 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2568} 3592}
2569 3593
2570void noinline 3594void noinline
2571ev_timer_stop (EV_P_ ev_timer *w) 3595ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2572{ 3596{
2573 clear_pending (EV_A_ (W)w); 3597 clear_pending (EV_A_ (W)w);
2574 if (expect_false (!ev_is_active (w))) 3598 if (expect_false (!ev_is_active (w)))
2575 return; 3599 return;
2576 3600
… …
2596 3620
2597 EV_FREQUENT_CHECK; 3621 EV_FREQUENT_CHECK;
2598} 3622}
2599 3623
2600void noinline 3624void noinline
2601ev_timer_again (EV_P_ ev_timer *w) 3625ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2602{ 3626{
2603 EV_FREQUENT_CHECK; 3627 EV_FREQUENT_CHECK;
3628
3629 clear_pending (EV_A_ (W)w);
2604 3630
2605 if (ev_is_active (w)) 3631 if (ev_is_active (w))
2606 { 3632 {
2607 if (w->repeat) 3633 if (w->repeat)
2608 { 3634 {
… …
2621 3647
2622 EV_FREQUENT_CHECK; 3648 EV_FREQUENT_CHECK;
2623} 3649}
2624 3650
2625ev_tstamp 3651ev_tstamp
2626ev_timer_remaining (EV_P_ ev_timer *w) 3652ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2627{ 3653{
2628 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3654 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2629} 3655}
2630 3656
2631#if EV_PERIODIC_ENABLE 3657#if EV_PERIODIC_ENABLE
2632void noinline 3658void noinline
2633ev_periodic_start (EV_P_ ev_periodic *w) 3659ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2634{ 3660{
2635 if (expect_false (ev_is_active (w))) 3661 if (expect_false (ev_is_active (w)))
2636 return; 3662 return;
2637 3663
2638 if (w->reschedule_cb) 3664 if (w->reschedule_cb)
2639 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3665 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2640 else if (w->interval) 3666 else if (w->interval)
2641 { 3667 {
2642 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3668 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2643 /* this formula differs from the one in periodic_reify because we do not always round up */ 3669 periodic_recalc (EV_A_ w);
2644 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2645 } 3670 }
2646 else 3671 else
2647 ev_at (w) = w->offset; 3672 ev_at (w) = w->offset;
2648 3673
2649 EV_FREQUENT_CHECK; 3674 EV_FREQUENT_CHECK;
… …
2659 3684
2660 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3685 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2661} 3686}
2662 3687
2663void noinline 3688void noinline
2664ev_periodic_stop (EV_P_ ev_periodic *w) 3689ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2665{ 3690{
2666 clear_pending (EV_A_ (W)w); 3691 clear_pending (EV_A_ (W)w);
2667 if (expect_false (!ev_is_active (w))) 3692 if (expect_false (!ev_is_active (w)))
2668 return; 3693 return;
2669 3694
… …
2687 3712
2688 EV_FREQUENT_CHECK; 3713 EV_FREQUENT_CHECK;
2689} 3714}
2690 3715
2691void noinline 3716void noinline
2692ev_periodic_again (EV_P_ ev_periodic *w) 3717ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2693{ 3718{
2694 /* TODO: use adjustheap and recalculation */ 3719 /* TODO: use adjustheap and recalculation */
2695 ev_periodic_stop (EV_A_ w); 3720 ev_periodic_stop (EV_A_ w);
2696 ev_periodic_start (EV_A_ w); 3721 ev_periodic_start (EV_A_ w);
2697} 3722}
… …
2699 3724
2700#ifndef SA_RESTART 3725#ifndef SA_RESTART
2701# define SA_RESTART 0 3726# define SA_RESTART 0
2702#endif 3727#endif
2703 3728
3729#if EV_SIGNAL_ENABLE
3730
2704void noinline 3731void noinline
2705ev_signal_start (EV_P_ ev_signal *w) 3732ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2706{ 3733{
2707 if (expect_false (ev_is_active (w))) 3734 if (expect_false (ev_is_active (w)))
2708 return; 3735 return;
2709 3736
2710 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3737 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2712#if EV_MULTIPLICITY 3739#if EV_MULTIPLICITY
2713 assert (("libev: a signal must not be attached to two different loops", 3740 assert (("libev: a signal must not be attached to two different loops",
2714 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3741 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2715 3742
2716 signals [w->signum - 1].loop = EV_A; 3743 signals [w->signum - 1].loop = EV_A;
3744 ECB_MEMORY_FENCE_RELEASE;
2717#endif 3745#endif
2718 3746
2719 EV_FREQUENT_CHECK; 3747 EV_FREQUENT_CHECK;
2720 3748
2721#if EV_USE_SIGNALFD 3749#if EV_USE_SIGNALFD
… …
2768 sa.sa_handler = ev_sighandler; 3796 sa.sa_handler = ev_sighandler;
2769 sigfillset (&sa.sa_mask); 3797 sigfillset (&sa.sa_mask);
2770 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3798 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2771 sigaction (w->signum, &sa, 0); 3799 sigaction (w->signum, &sa, 0);
2772 3800
3801 if (origflags & EVFLAG_NOSIGMASK)
3802 {
2773 sigemptyset (&sa.sa_mask); 3803 sigemptyset (&sa.sa_mask);
2774 sigaddset (&sa.sa_mask, w->signum); 3804 sigaddset (&sa.sa_mask, w->signum);
2775 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3805 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3806 }
2776#endif 3807#endif
2777 } 3808 }
2778 3809
2779 EV_FREQUENT_CHECK; 3810 EV_FREQUENT_CHECK;
2780} 3811}
2781 3812
2782void noinline 3813void noinline
2783ev_signal_stop (EV_P_ ev_signal *w) 3814ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2784{ 3815{
2785 clear_pending (EV_A_ (W)w); 3816 clear_pending (EV_A_ (W)w);
2786 if (expect_false (!ev_is_active (w))) 3817 if (expect_false (!ev_is_active (w)))
2787 return; 3818 return;
2788 3819
… …
2814 } 3845 }
2815 3846
2816 EV_FREQUENT_CHECK; 3847 EV_FREQUENT_CHECK;
2817} 3848}
2818 3849
3850#endif
3851
3852#if EV_CHILD_ENABLE
3853
2819void 3854void
2820ev_child_start (EV_P_ ev_child *w) 3855ev_child_start (EV_P_ ev_child *w) EV_THROW
2821{ 3856{
2822#if EV_MULTIPLICITY 3857#if EV_MULTIPLICITY
2823 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3858 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2824#endif 3859#endif
2825 if (expect_false (ev_is_active (w))) 3860 if (expect_false (ev_is_active (w)))
2826 return; 3861 return;
2827 3862
2828 EV_FREQUENT_CHECK; 3863 EV_FREQUENT_CHECK;
2829 3864
2830 ev_start (EV_A_ (W)w, 1); 3865 ev_start (EV_A_ (W)w, 1);
2831 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3866 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2832 3867
2833 EV_FREQUENT_CHECK; 3868 EV_FREQUENT_CHECK;
2834} 3869}
2835 3870
2836void 3871void
2837ev_child_stop (EV_P_ ev_child *w) 3872ev_child_stop (EV_P_ ev_child *w) EV_THROW
2838{ 3873{
2839 clear_pending (EV_A_ (W)w); 3874 clear_pending (EV_A_ (W)w);
2840 if (expect_false (!ev_is_active (w))) 3875 if (expect_false (!ev_is_active (w)))
2841 return; 3876 return;
2842 3877
2843 EV_FREQUENT_CHECK; 3878 EV_FREQUENT_CHECK;
2844 3879
2845 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3880 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2846 ev_stop (EV_A_ (W)w); 3881 ev_stop (EV_A_ (W)w);
2847 3882
2848 EV_FREQUENT_CHECK; 3883 EV_FREQUENT_CHECK;
2849} 3884}
3885
3886#endif
2850 3887
2851#if EV_STAT_ENABLE 3888#if EV_STAT_ENABLE
2852 3889
2853# ifdef _WIN32 3890# ifdef _WIN32
2854# undef lstat 3891# undef lstat
… …
2867# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3904# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2868 3905
2869static void noinline 3906static void noinline
2870infy_add (EV_P_ ev_stat *w) 3907infy_add (EV_P_ ev_stat *w)
2871{ 3908{
2872 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3909 w->wd = inotify_add_watch (fs_fd, w->path,
3910 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3911 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3912 | IN_DONT_FOLLOW | IN_MASK_ADD);
2873 3913
2874 if (w->wd >= 0) 3914 if (w->wd >= 0)
2875 { 3915 {
2876 struct statfs sfs; 3916 struct statfs sfs;
2877 3917
… …
2881 3921
2882 if (!fs_2625) 3922 if (!fs_2625)
2883 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3923 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2884 else if (!statfs (w->path, &sfs) 3924 else if (!statfs (w->path, &sfs)
2885 && (sfs.f_type == 0x1373 /* devfs */ 3925 && (sfs.f_type == 0x1373 /* devfs */
3926 || sfs.f_type == 0x4006 /* fat */
3927 || sfs.f_type == 0x4d44 /* msdos */
2886 || sfs.f_type == 0xEF53 /* ext2/3 */ 3928 || sfs.f_type == 0xEF53 /* ext2/3 */
3929 || sfs.f_type == 0x72b6 /* jffs2 */
3930 || sfs.f_type == 0x858458f6 /* ramfs */
3931 || sfs.f_type == 0x5346544e /* ntfs */
2887 || sfs.f_type == 0x3153464a /* jfs */ 3932 || sfs.f_type == 0x3153464a /* jfs */
3933 || sfs.f_type == 0x9123683e /* btrfs */
2888 || sfs.f_type == 0x52654973 /* reiser3 */ 3934 || sfs.f_type == 0x52654973 /* reiser3 */
2889 || sfs.f_type == 0x01021994 /* tempfs */ 3935 || sfs.f_type == 0x01021994 /* tmpfs */
2890 || sfs.f_type == 0x58465342 /* xfs */)) 3936 || sfs.f_type == 0x58465342 /* xfs */))
2891 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3937 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2892 else 3938 else
2893 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3939 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2894 } 3940 }
… …
2915 if (!pend || pend == path) 3961 if (!pend || pend == path)
2916 break; 3962 break;
2917 3963
2918 *pend = 0; 3964 *pend = 0;
2919 w->wd = inotify_add_watch (fs_fd, path, mask); 3965 w->wd = inotify_add_watch (fs_fd, path, mask);
2920 } 3966 }
2921 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3967 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2922 } 3968 }
2923 } 3969 }
2924 3970
2925 if (w->wd >= 0) 3971 if (w->wd >= 0)
2926 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3972 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2927 3973
2928 /* now re-arm timer, if required */ 3974 /* now re-arm timer, if required */
2929 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3975 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2930 ev_timer_again (EV_A_ &w->timer); 3976 ev_timer_again (EV_A_ &w->timer);
2931 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3977 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2939 3985
2940 if (wd < 0) 3986 if (wd < 0)
2941 return; 3987 return;
2942 3988
2943 w->wd = -2; 3989 w->wd = -2;
2944 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3990 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2945 wlist_del (&fs_hash [slot].head, (WL)w); 3991 wlist_del (&fs_hash [slot].head, (WL)w);
2946 3992
2947 /* remove this watcher, if others are watching it, they will rearm */ 3993 /* remove this watcher, if others are watching it, they will rearm */
2948 inotify_rm_watch (fs_fd, wd); 3994 inotify_rm_watch (fs_fd, wd);
2949} 3995}
… …
2951static void noinline 3997static void noinline
2952infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3998infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2953{ 3999{
2954 if (slot < 0) 4000 if (slot < 0)
2955 /* overflow, need to check for all hash slots */ 4001 /* overflow, need to check for all hash slots */
2956 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4002 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2957 infy_wd (EV_A_ slot, wd, ev); 4003 infy_wd (EV_A_ slot, wd, ev);
2958 else 4004 else
2959 { 4005 {
2960 WL w_; 4006 WL w_;
2961 4007
2962 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 4008 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2963 { 4009 {
2964 ev_stat *w = (ev_stat *)w_; 4010 ev_stat *w = (ev_stat *)w_;
2965 w_ = w_->next; /* lets us remove this watcher and all before it */ 4011 w_ = w_->next; /* lets us remove this watcher and all before it */
2966 4012
2967 if (w->wd == wd || wd == -1) 4013 if (w->wd == wd || wd == -1)
2968 { 4014 {
2969 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 4015 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2970 { 4016 {
2971 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4017 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2972 w->wd = -1; 4018 w->wd = -1;
2973 infy_add (EV_A_ w); /* re-add, no matter what */ 4019 infy_add (EV_A_ w); /* re-add, no matter what */
2974 } 4020 }
2975 4021
2976 stat_timer_cb (EV_A_ &w->timer, 0); 4022 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2992 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4038 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2993 ofs += sizeof (struct inotify_event) + ev->len; 4039 ofs += sizeof (struct inotify_event) + ev->len;
2994 } 4040 }
2995} 4041}
2996 4042
2997inline_size void 4043inline_size void ecb_cold
2998check_2625 (EV_P) 4044ev_check_2625 (EV_P)
2999{ 4045{
3000 /* kernels < 2.6.25 are borked 4046 /* kernels < 2.6.25 are borked
3001 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4047 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3002 */ 4048 */
3003 struct utsname buf; 4049 if (ev_linux_version () < 0x020619)
3004 int major, minor, micro;
3005
3006 if (uname (&buf))
3007 return;
3008
3009 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
3010 return;
3011
3012 if (major < 2
3013 || (major == 2 && minor < 6)
3014 || (major == 2 && minor == 6 && micro < 25))
3015 return; 4050 return;
3016 4051
3017 fs_2625 = 1; 4052 fs_2625 = 1;
3018} 4053}
3019 4054
3020inline_size int 4055inline_size int
3021infy_newfd (void) 4056infy_newfd (void)
3022{ 4057{
3023#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4058#if defined IN_CLOEXEC && defined IN_NONBLOCK
3024 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4059 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3025 if (fd >= 0) 4060 if (fd >= 0)
3026 return fd; 4061 return fd;
3027#endif 4062#endif
3028 return inotify_init (); 4063 return inotify_init ();
… …
3034 if (fs_fd != -2) 4069 if (fs_fd != -2)
3035 return; 4070 return;
3036 4071
3037 fs_fd = -1; 4072 fs_fd = -1;
3038 4073
3039 check_2625 (EV_A); 4074 ev_check_2625 (EV_A);
3040 4075
3041 fs_fd = infy_newfd (); 4076 fs_fd = infy_newfd ();
3042 4077
3043 if (fs_fd >= 0) 4078 if (fs_fd >= 0)
3044 { 4079 {
… …
3069 ev_io_set (&fs_w, fs_fd, EV_READ); 4104 ev_io_set (&fs_w, fs_fd, EV_READ);
3070 ev_io_start (EV_A_ &fs_w); 4105 ev_io_start (EV_A_ &fs_w);
3071 ev_unref (EV_A); 4106 ev_unref (EV_A);
3072 } 4107 }
3073 4108
3074 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4109 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3075 { 4110 {
3076 WL w_ = fs_hash [slot].head; 4111 WL w_ = fs_hash [slot].head;
3077 fs_hash [slot].head = 0; 4112 fs_hash [slot].head = 0;
3078 4113
3079 while (w_) 4114 while (w_)
… …
3103#else 4138#else
3104# define EV_LSTAT(p,b) lstat (p, b) 4139# define EV_LSTAT(p,b) lstat (p, b)
3105#endif 4140#endif
3106 4141
3107void 4142void
3108ev_stat_stat (EV_P_ ev_stat *w) 4143ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3109{ 4144{
3110 if (lstat (w->path, &w->attr) < 0) 4145 if (lstat (w->path, &w->attr) < 0)
3111 w->attr.st_nlink = 0; 4146 w->attr.st_nlink = 0;
3112 else if (!w->attr.st_nlink) 4147 else if (!w->attr.st_nlink)
3113 w->attr.st_nlink = 1; 4148 w->attr.st_nlink = 1;
… …
3152 ev_feed_event (EV_A_ w, EV_STAT); 4187 ev_feed_event (EV_A_ w, EV_STAT);
3153 } 4188 }
3154} 4189}
3155 4190
3156void 4191void
3157ev_stat_start (EV_P_ ev_stat *w) 4192ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3158{ 4193{
3159 if (expect_false (ev_is_active (w))) 4194 if (expect_false (ev_is_active (w)))
3160 return; 4195 return;
3161 4196
3162 ev_stat_stat (EV_A_ w); 4197 ev_stat_stat (EV_A_ w);
… …
3183 4218
3184 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
3185} 4220}
3186 4221
3187void 4222void
3188ev_stat_stop (EV_P_ ev_stat *w) 4223ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3189{ 4224{
3190 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
3191 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
3192 return; 4227 return;
3193 4228
… …
3209} 4244}
3210#endif 4245#endif
3211 4246
3212#if EV_IDLE_ENABLE 4247#if EV_IDLE_ENABLE
3213void 4248void
3214ev_idle_start (EV_P_ ev_idle *w) 4249ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3215{ 4250{
3216 if (expect_false (ev_is_active (w))) 4251 if (expect_false (ev_is_active (w)))
3217 return; 4252 return;
3218 4253
3219 pri_adjust (EV_A_ (W)w); 4254 pri_adjust (EV_A_ (W)w);
… …
3232 4267
3233 EV_FREQUENT_CHECK; 4268 EV_FREQUENT_CHECK;
3234} 4269}
3235 4270
3236void 4271void
3237ev_idle_stop (EV_P_ ev_idle *w) 4272ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3238{ 4273{
3239 clear_pending (EV_A_ (W)w); 4274 clear_pending (EV_A_ (W)w);
3240 if (expect_false (!ev_is_active (w))) 4275 if (expect_false (!ev_is_active (w)))
3241 return; 4276 return;
3242 4277
… …
3254 4289
3255 EV_FREQUENT_CHECK; 4290 EV_FREQUENT_CHECK;
3256} 4291}
3257#endif 4292#endif
3258 4293
4294#if EV_PREPARE_ENABLE
3259void 4295void
3260ev_prepare_start (EV_P_ ev_prepare *w) 4296ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3261{ 4297{
3262 if (expect_false (ev_is_active (w))) 4298 if (expect_false (ev_is_active (w)))
3263 return; 4299 return;
3264 4300
3265 EV_FREQUENT_CHECK; 4301 EV_FREQUENT_CHECK;
… …
3270 4306
3271 EV_FREQUENT_CHECK; 4307 EV_FREQUENT_CHECK;
3272} 4308}
3273 4309
3274void 4310void
3275ev_prepare_stop (EV_P_ ev_prepare *w) 4311ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3276{ 4312{
3277 clear_pending (EV_A_ (W)w); 4313 clear_pending (EV_A_ (W)w);
3278 if (expect_false (!ev_is_active (w))) 4314 if (expect_false (!ev_is_active (w)))
3279 return; 4315 return;
3280 4316
… …
3289 4325
3290 ev_stop (EV_A_ (W)w); 4326 ev_stop (EV_A_ (W)w);
3291 4327
3292 EV_FREQUENT_CHECK; 4328 EV_FREQUENT_CHECK;
3293} 4329}
4330#endif
3294 4331
4332#if EV_CHECK_ENABLE
3295void 4333void
3296ev_check_start (EV_P_ ev_check *w) 4334ev_check_start (EV_P_ ev_check *w) EV_THROW
3297{ 4335{
3298 if (expect_false (ev_is_active (w))) 4336 if (expect_false (ev_is_active (w)))
3299 return; 4337 return;
3300 4338
3301 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
… …
3306 4344
3307 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
3308} 4346}
3309 4347
3310void 4348void
3311ev_check_stop (EV_P_ ev_check *w) 4349ev_check_stop (EV_P_ ev_check *w) EV_THROW
3312{ 4350{
3313 clear_pending (EV_A_ (W)w); 4351 clear_pending (EV_A_ (W)w);
3314 if (expect_false (!ev_is_active (w))) 4352 if (expect_false (!ev_is_active (w)))
3315 return; 4353 return;
3316 4354
… …
3325 4363
3326 ev_stop (EV_A_ (W)w); 4364 ev_stop (EV_A_ (W)w);
3327 4365
3328 EV_FREQUENT_CHECK; 4366 EV_FREQUENT_CHECK;
3329} 4367}
4368#endif
3330 4369
3331#if EV_EMBED_ENABLE 4370#if EV_EMBED_ENABLE
3332void noinline 4371void noinline
3333ev_embed_sweep (EV_P_ ev_embed *w) 4372ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3334{ 4373{
3335 ev_loop (w->other, EVLOOP_NONBLOCK); 4374 ev_run (w->other, EVRUN_NOWAIT);
3336} 4375}
3337 4376
3338static void 4377static void
3339embed_io_cb (EV_P_ ev_io *io, int revents) 4378embed_io_cb (EV_P_ ev_io *io, int revents)
3340{ 4379{
3341 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4380 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3342 4381
3343 if (ev_cb (w)) 4382 if (ev_cb (w))
3344 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4383 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3345 else 4384 else
3346 ev_loop (w->other, EVLOOP_NONBLOCK); 4385 ev_run (w->other, EVRUN_NOWAIT);
3347} 4386}
3348 4387
3349static void 4388static void
3350embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4389embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3351{ 4390{
… …
3355 EV_P = w->other; 4394 EV_P = w->other;
3356 4395
3357 while (fdchangecnt) 4396 while (fdchangecnt)
3358 { 4397 {
3359 fd_reify (EV_A); 4398 fd_reify (EV_A);
3360 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4399 ev_run (EV_A_ EVRUN_NOWAIT);
3361 } 4400 }
3362 } 4401 }
3363} 4402}
3364 4403
3365static void 4404static void
… …
3371 4410
3372 { 4411 {
3373 EV_P = w->other; 4412 EV_P = w->other;
3374 4413
3375 ev_loop_fork (EV_A); 4414 ev_loop_fork (EV_A);
3376 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4415 ev_run (EV_A_ EVRUN_NOWAIT);
3377 } 4416 }
3378 4417
3379 ev_embed_start (EV_A_ w); 4418 ev_embed_start (EV_A_ w);
3380} 4419}
3381 4420
… …
3386 ev_idle_stop (EV_A_ idle); 4425 ev_idle_stop (EV_A_ idle);
3387} 4426}
3388#endif 4427#endif
3389 4428
3390void 4429void
3391ev_embed_start (EV_P_ ev_embed *w) 4430ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3392{ 4431{
3393 if (expect_false (ev_is_active (w))) 4432 if (expect_false (ev_is_active (w)))
3394 return; 4433 return;
3395 4434
3396 { 4435 {
… …
3417 4456
3418 EV_FREQUENT_CHECK; 4457 EV_FREQUENT_CHECK;
3419} 4458}
3420 4459
3421void 4460void
3422ev_embed_stop (EV_P_ ev_embed *w) 4461ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3423{ 4462{
3424 clear_pending (EV_A_ (W)w); 4463 clear_pending (EV_A_ (W)w);
3425 if (expect_false (!ev_is_active (w))) 4464 if (expect_false (!ev_is_active (w)))
3426 return; 4465 return;
3427 4466
… …
3437} 4476}
3438#endif 4477#endif
3439 4478
3440#if EV_FORK_ENABLE 4479#if EV_FORK_ENABLE
3441void 4480void
3442ev_fork_start (EV_P_ ev_fork *w) 4481ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3443{ 4482{
3444 if (expect_false (ev_is_active (w))) 4483 if (expect_false (ev_is_active (w)))
3445 return; 4484 return;
3446 4485
3447 EV_FREQUENT_CHECK; 4486 EV_FREQUENT_CHECK;
… …
3452 4491
3453 EV_FREQUENT_CHECK; 4492 EV_FREQUENT_CHECK;
3454} 4493}
3455 4494
3456void 4495void
3457ev_fork_stop (EV_P_ ev_fork *w) 4496ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3458{ 4497{
3459 clear_pending (EV_A_ (W)w); 4498 clear_pending (EV_A_ (W)w);
3460 if (expect_false (!ev_is_active (w))) 4499 if (expect_false (!ev_is_active (w)))
3461 return; 4500 return;
3462 4501
… …
3473 4512
3474 EV_FREQUENT_CHECK; 4513 EV_FREQUENT_CHECK;
3475} 4514}
3476#endif 4515#endif
3477 4516
4517#if EV_CLEANUP_ENABLE
4518void
4519ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4520{
4521 if (expect_false (ev_is_active (w)))
4522 return;
4523
4524 EV_FREQUENT_CHECK;
4525
4526 ev_start (EV_A_ (W)w, ++cleanupcnt);
4527 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4528 cleanups [cleanupcnt - 1] = w;
4529
4530 /* cleanup watchers should never keep a refcount on the loop */
4531 ev_unref (EV_A);
4532 EV_FREQUENT_CHECK;
4533}
4534
4535void
4536ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4537{
4538 clear_pending (EV_A_ (W)w);
4539 if (expect_false (!ev_is_active (w)))
4540 return;
4541
4542 EV_FREQUENT_CHECK;
4543 ev_ref (EV_A);
4544
4545 {
4546 int active = ev_active (w);
4547
4548 cleanups [active - 1] = cleanups [--cleanupcnt];
4549 ev_active (cleanups [active - 1]) = active;
4550 }
4551
4552 ev_stop (EV_A_ (W)w);
4553
4554 EV_FREQUENT_CHECK;
4555}
4556#endif
4557
3478#if EV_ASYNC_ENABLE 4558#if EV_ASYNC_ENABLE
3479void 4559void
3480ev_async_start (EV_P_ ev_async *w) 4560ev_async_start (EV_P_ ev_async *w) EV_THROW
3481{ 4561{
3482 if (expect_false (ev_is_active (w))) 4562 if (expect_false (ev_is_active (w)))
3483 return; 4563 return;
4564
4565 w->sent = 0;
3484 4566
3485 evpipe_init (EV_A); 4567 evpipe_init (EV_A);
3486 4568
3487 EV_FREQUENT_CHECK; 4569 EV_FREQUENT_CHECK;
3488 4570
… …
3492 4574
3493 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
3494} 4576}
3495 4577
3496void 4578void
3497ev_async_stop (EV_P_ ev_async *w) 4579ev_async_stop (EV_P_ ev_async *w) EV_THROW
3498{ 4580{
3499 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
3500 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
3501 return; 4583 return;
3502 4584
… …
3513 4595
3514 EV_FREQUENT_CHECK; 4596 EV_FREQUENT_CHECK;
3515} 4597}
3516 4598
3517void 4599void
3518ev_async_send (EV_P_ ev_async *w) 4600ev_async_send (EV_P_ ev_async *w) EV_THROW
3519{ 4601{
3520 w->sent = 1; 4602 w->sent = 1;
3521 evpipe_write (EV_A_ &async_pending); 4603 evpipe_write (EV_A_ &async_pending);
3522} 4604}
3523#endif 4605#endif
… …
3560 4642
3561 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4643 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3562} 4644}
3563 4645
3564void 4646void
3565ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4647ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3566{ 4648{
3567 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4649 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3568 4650
3569 if (expect_false (!once)) 4651 if (expect_false (!once))
3570 { 4652 {
3571 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4653 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3572 return; 4654 return;
3573 } 4655 }
3574 4656
3575 once->cb = cb; 4657 once->cb = cb;
3576 once->arg = arg; 4658 once->arg = arg;
… …
3591} 4673}
3592 4674
3593/*****************************************************************************/ 4675/*****************************************************************************/
3594 4676
3595#if EV_WALK_ENABLE 4677#if EV_WALK_ENABLE
3596void 4678void ecb_cold
3597ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4679ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3598{ 4680{
3599 int i, j; 4681 int i, j;
3600 ev_watcher_list *wl, *wn; 4682 ev_watcher_list *wl, *wn;
3601 4683
3602 if (types & (EV_IO | EV_EMBED)) 4684 if (types & (EV_IO | EV_EMBED))
… …
3645 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4727 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3646#endif 4728#endif
3647 4729
3648#if EV_IDLE_ENABLE 4730#if EV_IDLE_ENABLE
3649 if (types & EV_IDLE) 4731 if (types & EV_IDLE)
3650 for (j = NUMPRI; i--; ) 4732 for (j = NUMPRI; j--; )
3651 for (i = idlecnt [j]; i--; ) 4733 for (i = idlecnt [j]; i--; )
3652 cb (EV_A_ EV_IDLE, idles [j][i]); 4734 cb (EV_A_ EV_IDLE, idles [j][i]);
3653#endif 4735#endif
3654 4736
3655#if EV_FORK_ENABLE 4737#if EV_FORK_ENABLE
… …
3663 if (types & EV_ASYNC) 4745 if (types & EV_ASYNC)
3664 for (i = asynccnt; i--; ) 4746 for (i = asynccnt; i--; )
3665 cb (EV_A_ EV_ASYNC, asyncs [i]); 4747 cb (EV_A_ EV_ASYNC, asyncs [i]);
3666#endif 4748#endif
3667 4749
4750#if EV_PREPARE_ENABLE
3668 if (types & EV_PREPARE) 4751 if (types & EV_PREPARE)
3669 for (i = preparecnt; i--; ) 4752 for (i = preparecnt; i--; )
3670#if EV_EMBED_ENABLE 4753# if EV_EMBED_ENABLE
3671 if (ev_cb (prepares [i]) != embed_prepare_cb) 4754 if (ev_cb (prepares [i]) != embed_prepare_cb)
3672#endif 4755# endif
3673 cb (EV_A_ EV_PREPARE, prepares [i]); 4756 cb (EV_A_ EV_PREPARE, prepares [i]);
4757#endif
3674 4758
4759#if EV_CHECK_ENABLE
3675 if (types & EV_CHECK) 4760 if (types & EV_CHECK)
3676 for (i = checkcnt; i--; ) 4761 for (i = checkcnt; i--; )
3677 cb (EV_A_ EV_CHECK, checks [i]); 4762 cb (EV_A_ EV_CHECK, checks [i]);
4763#endif
3678 4764
4765#if EV_SIGNAL_ENABLE
3679 if (types & EV_SIGNAL) 4766 if (types & EV_SIGNAL)
3680 for (i = 0; i < EV_NSIG - 1; ++i) 4767 for (i = 0; i < EV_NSIG - 1; ++i)
3681 for (wl = signals [i].head; wl; ) 4768 for (wl = signals [i].head; wl; )
3682 { 4769 {
3683 wn = wl->next; 4770 wn = wl->next;
3684 cb (EV_A_ EV_SIGNAL, wl); 4771 cb (EV_A_ EV_SIGNAL, wl);
3685 wl = wn; 4772 wl = wn;
3686 } 4773 }
4774#endif
3687 4775
4776#if EV_CHILD_ENABLE
3688 if (types & EV_CHILD) 4777 if (types & EV_CHILD)
3689 for (i = EV_PID_HASHSIZE; i--; ) 4778 for (i = (EV_PID_HASHSIZE); i--; )
3690 for (wl = childs [i]; wl; ) 4779 for (wl = childs [i]; wl; )
3691 { 4780 {
3692 wn = wl->next; 4781 wn = wl->next;
3693 cb (EV_A_ EV_CHILD, wl); 4782 cb (EV_A_ EV_CHILD, wl);
3694 wl = wn; 4783 wl = wn;
3695 } 4784 }
4785#endif
3696/* EV_STAT 0x00001000 /* stat data changed */ 4786/* EV_STAT 0x00001000 /* stat data changed */
3697/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4787/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3698} 4788}
3699#endif 4789#endif
3700 4790
3701#if EV_MULTIPLICITY 4791#if EV_MULTIPLICITY
3702 #include "ev_wrap.h" 4792 #include "ev_wrap.h"
3703#endif 4793#endif
3704 4794
3705#ifdef __cplusplus
3706}
3707#endif
3708

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