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Comparing libev/ev.c (file contents):
Revision 1.332 by root, Tue Mar 9 08:58:17 2010 UTC vs.
Revision 1.452 by root, Mon Feb 18 03:20:29 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
189# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
190#endif 212#endif
191 213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221
192/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
193 223
194/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 225#if defined EV_NSIG
196/* use what's provided */ 226/* use what's provided */
197#elif defined (NSIG) 227#elif defined NSIG
198# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
199#elif defined(_NSIG) 229#elif defined _NSIG
200# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX) 231#elif defined SIGMAX
202# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX) 233#elif defined SIG_MAX
204# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
206# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG) 237#elif defined MAXSIG
208# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 239#elif defined MAX_SIG
210# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
212# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 243#elif defined _sys_nsig
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 245#else
216# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line */ 247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
218# define EV_NSIG 65 249# define EV_NSIG 65
250#endif
251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
219#endif 254#endif
220 255
221#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
222# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
223# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
224# else 259# else
225# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
226# endif 261# endif
227#endif 262#endif
228 263
229#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
230# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
231# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
232# else 267# else
233# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
234# endif 269# endif
235#endif 270#endif
236 271
… …
238# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239#endif 274#endif
240 275
241#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
242# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
243# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
244# else 279# else
245# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
246# endif 281# endif
247#endif 282#endif
248 283
249#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
250# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
251#endif 286#endif
252 287
253#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
254# ifdef _WIN32 289# ifdef _WIN32
255# define EV_USE_POLL 0 290# define EV_USE_POLL 0
256# else 291# else
257# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
258# endif 293# endif
259#endif 294#endif
260 295
261#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264# else 299# else
265# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
266# endif 301# endif
267#endif 302#endif
268 303
… …
274# define EV_USE_PORT 0 309# define EV_USE_PORT 0
275#endif 310#endif
276 311
277#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
280# else 315# else
281# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
282# endif 317# endif
283#endif 318#endif
284 319
285#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
286# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
287# define EV_PID_HASHSIZE 1
288# else
289# define EV_PID_HASHSIZE 16
290# endif
291#endif 322#endif
292 323
293#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
294# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
295# define EV_INOTIFY_HASHSIZE 1
296# else
297# define EV_INOTIFY_HASHSIZE 16
298# endif
299#endif 326#endif
300 327
301#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
302# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
304# else 331# else
305# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
306# endif 333# endif
307#endif 334#endif
308 335
309#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
312# else 339# else
313# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
314# endif 341# endif
315#endif 342#endif
316 343
… …
319# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
320# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
321#endif 348#endif
322 349
323#ifndef EV_VERIFY 350#ifndef EV_VERIFY
324# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325#endif 352#endif
326 353
327#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
328# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
329#endif 356#endif
330 357
331#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
332# 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
333#endif 376#endif
334 377
335/* 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, */
336/* which makes programs even slower. might work on other unices, too. */ 379/* which makes programs even slower. might work on other unices, too. */
337#if EV_USE_CLOCK_SYSCALL 380#if EV_USE_CLOCK_SYSCALL
338# include <syscall.h> 381# include <sys/syscall.h>
339# ifdef SYS_clock_gettime 382# ifdef SYS_clock_gettime
340# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
341# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
342# define EV_USE_MONOTONIC 1 385# define EV_USE_MONOTONIC 1
343# else 386# else
… …
346# endif 389# endif
347#endif 390#endif
348 391
349/* 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 */
350 393
351#ifdef _AIX
352/* AIX has a completely broken poll.h header */
353# undef EV_USE_POLL
354# define EV_USE_POLL 0
355#endif
356
357#ifndef CLOCK_MONOTONIC 394#ifndef CLOCK_MONOTONIC
358# undef EV_USE_MONOTONIC 395# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 0 396# define EV_USE_MONOTONIC 0
360#endif 397#endif
361 398
… …
368# undef EV_USE_INOTIFY 405# undef EV_USE_INOTIFY
369# define EV_USE_INOTIFY 0 406# define EV_USE_INOTIFY 0
370#endif 407#endif
371 408
372#if !EV_USE_NANOSLEEP 409#if !EV_USE_NANOSLEEP
373# ifndef _WIN32 410/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux
374# include <sys/select.h> 412# include <sys/select.h>
375# endif 413# endif
376#endif 414#endif
377 415
378#if EV_USE_INOTIFY 416#if EV_USE_INOTIFY
379# include <sys/utsname.h>
380# include <sys/statfs.h> 417# include <sys/statfs.h>
381# include <sys/inotify.h> 418# include <sys/inotify.h>
382/* 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 */
383# ifndef IN_DONT_FOLLOW 420# ifndef IN_DONT_FOLLOW
384# undef EV_USE_INOTIFY 421# undef EV_USE_INOTIFY
385# define EV_USE_INOTIFY 0 422# define EV_USE_INOTIFY 0
386# endif 423# endif
387#endif
388
389#if EV_SELECT_IS_WINSOCKET
390# include <winsock.h>
391#endif 424#endif
392 425
393#if EV_USE_EVENTFD 426#if EV_USE_EVENTFD
394/* 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 */
395# include <stdint.h> 428# include <stdint.h>
… …
401# define EFD_CLOEXEC O_CLOEXEC 434# define EFD_CLOEXEC O_CLOEXEC
402# else 435# else
403# define EFD_CLOEXEC 02000000 436# define EFD_CLOEXEC 02000000
404# endif 437# endif
405# endif 438# endif
406# ifdef __cplusplus
407extern "C" {
408# endif
409int (eventfd) (unsigned int initval, int flags); 439EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410# ifdef __cplusplus
411}
412# endif
413#endif 440#endif
414 441
415#if EV_USE_SIGNALFD 442#if EV_USE_SIGNALFD
416/* 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 */
417# include <stdint.h> 444# include <stdint.h>
… …
423# define SFD_CLOEXEC O_CLOEXEC 450# define SFD_CLOEXEC O_CLOEXEC
424# else 451# else
425# define SFD_CLOEXEC 02000000 452# define SFD_CLOEXEC 02000000
426# endif 453# endif
427# endif 454# endif
428# ifdef __cplusplus
429extern "C" {
430# endif
431int signalfd (int fd, const sigset_t *mask, int flags); 455EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
432 456
433struct signalfd_siginfo 457struct signalfd_siginfo
434{ 458{
435 uint32_t ssi_signo; 459 uint32_t ssi_signo;
436 char pad[128 - sizeof (uint32_t)]; 460 char pad[128 - sizeof (uint32_t)];
437}; 461};
438# ifdef __cplusplus
439}
440# endif 462#endif
441#endif
442
443 463
444/**/ 464/**/
445 465
446#if EV_VERIFY >= 3 466#if EV_VERIFY >= 3
447# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 467# define EV_FREQUENT_CHECK ev_verify (EV_A)
448#else 468#else
449# define EV_FREQUENT_CHECK do { } while (0) 469# define EV_FREQUENT_CHECK do { } while (0)
450#endif 470#endif
451 471
452/* 472/*
453 * This is used to avoid floating point rounding problems. 473 * This is used to work around floating point rounding problems.
454 * It is added to ev_rt_now when scheduling periodics
455 * to ensure progress, time-wise, even when rounding
456 * errors are against us.
457 * This value is good at least till the year 4000. 474 * This value is good at least till the year 4000.
458 * Better solutions welcome.
459 */ 475 */
460#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 */
461 478
462#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) */
463#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) */
464 481
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;
465#if __GNUC__ >= 4 529 #if __GNUC__
466# define expect(expr,value) __builtin_expect ((expr),(value)) 530 typedef signed long long int64_t;
467# 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
468#else 545#else
469# define expect(expr,value) (expr) 546 #include <inttypes.h>
470# define noinline 547 #if UINTMAX_MAX > 0xffffffffU
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 548 #define ECB_PTRSIZE 8
472# define inline 549 #else
550 #define ECB_PTRSIZE 4
551 #endif
473# 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)))
474#endif 566 #endif
567#endif
475 568
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. */
476#define expect_false(expr) expect ((expr) != 0, 0) 782#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#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
478#define inline_size static inline 1224#define inline_size ecb_inline
479 1225
480#if EV_MINIMAL 1226#if EV_FEATURE_CODE
1227# define inline_speed ecb_inline
1228#else
481# define inline_speed static noinline 1229# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 1230#endif
485 1231
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1232#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 1233
488#if EV_MINPRI == EV_MAXPRI 1234#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 1247#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 1248#define ev_at(w) ((WT)(w))->at
503 1249
504#if EV_USE_REALTIME 1250#if EV_USE_REALTIME
505/* 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 */
506/* giving it a reasonably high chance of working on typical architetcures */ 1252/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1253static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 1254#endif
509 1255
510#if EV_USE_MONOTONIC 1256#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1257static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 1271# include "ev_win32.c"
526#endif 1272#endif
527 1273
528/*****************************************************************************/ 1274/*****************************************************************************/
529 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
530#if EV_AVOID_STDIO 1366#if EV_AVOID_STDIO
531static void noinline 1367static void noinline ecb_cold
532ev_printerr (const char *msg) 1368ev_printerr (const char *msg)
533{ 1369{
534 write (STDERR_FILENO, msg, strlen (msg)); 1370 write (STDERR_FILENO, msg, strlen (msg));
535} 1371}
536#endif 1372#endif
537 1373
538static void (*syserr_cb)(const char *msg); 1374static void (*syserr_cb)(const char *msg) EV_THROW;
539 1375
540void 1376void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 1377ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
542{ 1378{
543 syserr_cb = cb; 1379 syserr_cb = cb;
544} 1380}
545 1381
546static void noinline 1382static void noinline ecb_cold
547ev_syserr (const char *msg) 1383ev_syserr (const char *msg)
548{ 1384{
549 if (!msg) 1385 if (!msg)
550 msg = "(libev) system error"; 1386 msg = "(libev) system error";
551 1387
552 if (syserr_cb) 1388 if (syserr_cb)
553 syserr_cb (msg); 1389 syserr_cb (msg);
554 else 1390 else
555 { 1391 {
556#if EV_AVOID_STDIO 1392#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 1393 ev_printerr (msg);
560 ev_printerr (": "); 1394 ev_printerr (": ");
561 ev_printerr (err); 1395 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 1396 ev_printerr ("\n");
563#else 1397#else
564 perror (msg); 1398 perror (msg);
565#endif 1399#endif
566 abort (); 1400 abort ();
567 } 1401 }
568} 1402}
569 1403
570static void * 1404static void *
571ev_realloc_emul (void *ptr, long size) 1405ev_realloc_emul (void *ptr, long size) EV_THROW
572{ 1406{
573 /* some systems, notably openbsd and darwin, fail to properly 1407 /* some systems, notably openbsd and darwin, fail to properly
574 * 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
575 * 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.
576 */ 1412 */
1413
577 if (size) 1414 if (size)
578 return realloc (ptr, size); 1415 return realloc (ptr, size);
579 1416
580 free (ptr); 1417 free (ptr);
581 return 0; 1418 return 0;
582} 1419}
583 1420
584static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
585 1422
586void 1423void ecb_cold
587ev_set_allocator (void *(*cb)(void *ptr, long size)) 1424ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
588{ 1425{
589 alloc = cb; 1426 alloc = cb;
590} 1427}
591 1428
592inline_speed void * 1429inline_speed void *
… …
595 ptr = alloc (ptr, size); 1432 ptr = alloc (ptr, size);
596 1433
597 if (!ptr && size) 1434 if (!ptr && size)
598 { 1435 {
599#if EV_AVOID_STDIO 1436#if EV_AVOID_STDIO
600 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1437 ev_printerr ("(libev) memory allocation failed, aborting.\n");
601#else 1438#else
602 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1439 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
603#endif 1440#endif
604 abort (); 1441 abort ();
605 } 1442 }
606 1443
607 return ptr; 1444 return ptr;
… …
624 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 */
625 unsigned char unused; 1462 unsigned char unused;
626#if EV_USE_EPOLL 1463#if EV_USE_EPOLL
627 unsigned int egen; /* generation counter to counter epoll bugs */ 1464 unsigned int egen; /* generation counter to counter epoll bugs */
628#endif 1465#endif
629#if EV_SELECT_IS_WINSOCKET 1466#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
630 SOCKET handle; 1467 SOCKET handle;
1468#endif
1469#if EV_USE_IOCP
1470 OVERLAPPED or, ow;
631#endif 1471#endif
632} ANFD; 1472} ANFD;
633 1473
634/* stores the pending event set for a given watcher */ 1474/* stores the pending event set for a given watcher */
635typedef struct 1475typedef struct
… …
677 #undef VAR 1517 #undef VAR
678 }; 1518 };
679 #include "ev_wrap.h" 1519 #include "ev_wrap.h"
680 1520
681 static struct ev_loop default_loop_struct; 1521 static struct ev_loop default_loop_struct;
682 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 */
683 1523
684#else 1524#else
685 1525
686 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 */
687 #define VAR(name,decl) static decl; 1527 #define VAR(name,decl) static decl;
688 #include "ev_vars.h" 1528 #include "ev_vars.h"
689 #undef VAR 1529 #undef VAR
690 1530
691 static int ev_default_loop_ptr; 1531 static int ev_default_loop_ptr;
692 1532
693#endif 1533#endif
694 1534
695#if EV_MINIMAL < 2 1535#if EV_FEATURE_API
696# 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)
697# 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)
698# define EV_INVOKE_PENDING invoke_cb (EV_A) 1538# define EV_INVOKE_PENDING invoke_cb (EV_A)
699#else 1539#else
700# define EV_RELEASE_CB (void)0 1540# define EV_RELEASE_CB (void)0
701# define EV_ACQUIRE_CB (void)0 1541# define EV_ACQUIRE_CB (void)0
702# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1542# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
703#endif 1543#endif
704 1544
705#define EVUNLOOP_RECURSE 0x80 1545#define EVBREAK_RECURSE 0x80
706 1546
707/*****************************************************************************/ 1547/*****************************************************************************/
708 1548
709#ifndef EV_HAVE_EV_TIME 1549#ifndef EV_HAVE_EV_TIME
710ev_tstamp 1550ev_tstamp
711ev_time (void) 1551ev_time (void) EV_THROW
712{ 1552{
713#if EV_USE_REALTIME 1553#if EV_USE_REALTIME
714 if (expect_true (have_realtime)) 1554 if (expect_true (have_realtime))
715 { 1555 {
716 struct timespec ts; 1556 struct timespec ts;
… …
740 return ev_time (); 1580 return ev_time ();
741} 1581}
742 1582
743#if EV_MULTIPLICITY 1583#if EV_MULTIPLICITY
744ev_tstamp 1584ev_tstamp
745ev_now (EV_P) 1585ev_now (EV_P) EV_THROW
746{ 1586{
747 return ev_rt_now; 1587 return ev_rt_now;
748} 1588}
749#endif 1589#endif
750 1590
751void 1591void
752ev_sleep (ev_tstamp delay) 1592ev_sleep (ev_tstamp delay) EV_THROW
753{ 1593{
754 if (delay > 0.) 1594 if (delay > 0.)
755 { 1595 {
756#if EV_USE_NANOSLEEP 1596#if EV_USE_NANOSLEEP
757 struct timespec ts; 1597 struct timespec ts;
758 1598
759 ts.tv_sec = (time_t)delay; 1599 EV_TS_SET (ts, delay);
760 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
761
762 nanosleep (&ts, 0); 1600 nanosleep (&ts, 0);
763#elif defined(_WIN32) 1601#elif defined _WIN32
764 Sleep ((unsigned long)(delay * 1e3)); 1602 Sleep ((unsigned long)(delay * 1e3));
765#else 1603#else
766 struct timeval tv; 1604 struct timeval tv;
767 1605
768 tv.tv_sec = (time_t)delay;
769 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
770
771 /* 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 */
772 /* something not guaranteed by newer posix versions, but guaranteed */ 1607 /* something not guaranteed by newer posix versions, but guaranteed */
773 /* by older ones */ 1608 /* by older ones */
1609 EV_TV_SET (tv, delay);
774 select (0, 0, 0, 0, &tv); 1610 select (0, 0, 0, 0, &tv);
775#endif 1611#endif
776 } 1612 }
777} 1613}
778 1614
779/*****************************************************************************/ 1615/*****************************************************************************/
780 1616
781#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 */
782 1618
783/* find a suitable new size for the given array, */ 1619/* find a suitable new size for the given array, */
784/* hopefully by rounding to a ncie-to-malloc size */ 1620/* hopefully by rounding to a nice-to-malloc size */
785inline_size int 1621inline_size int
786array_nextsize (int elem, int cur, int cnt) 1622array_nextsize (int elem, int cur, int cnt)
787{ 1623{
788 int ncur = cur + 1; 1624 int ncur = cur + 1;
789 1625
790 do 1626 do
791 ncur <<= 1; 1627 ncur <<= 1;
792 while (cnt > ncur); 1628 while (cnt > ncur);
793 1629
794 /* 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 */
795 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1631 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
796 { 1632 {
797 ncur *= elem; 1633 ncur *= elem;
798 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);
799 ncur = ncur - sizeof (void *) * 4; 1635 ncur = ncur - sizeof (void *) * 4;
… …
801 } 1637 }
802 1638
803 return ncur; 1639 return ncur;
804} 1640}
805 1641
806static noinline void * 1642static void * noinline ecb_cold
807array_realloc (int elem, void *base, int *cur, int cnt) 1643array_realloc (int elem, void *base, int *cur, int cnt)
808{ 1644{
809 *cur = array_nextsize (elem, *cur, cnt); 1645 *cur = array_nextsize (elem, *cur, cnt);
810 return ev_realloc (base, elem * *cur); 1646 return ev_realloc (base, elem * *cur);
811} 1647}
… …
814 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1650 memset ((void *)(base), 0, sizeof (*(base)) * (count))
815 1651
816#define array_needsize(type,base,cur,cnt,init) \ 1652#define array_needsize(type,base,cur,cnt,init) \
817 if (expect_false ((cnt) > (cur))) \ 1653 if (expect_false ((cnt) > (cur))) \
818 { \ 1654 { \
819 int ocur_ = (cur); \ 1655 int ecb_unused ocur_ = (cur); \
820 (base) = (type *)array_realloc \ 1656 (base) = (type *)array_realloc \
821 (sizeof (type), (base), &(cur), (cnt)); \ 1657 (sizeof (type), (base), &(cur), (cnt)); \
822 init ((base) + (ocur_), (cur) - ocur_); \ 1658 init ((base) + (ocur_), (cur) - ocur_); \
823 } 1659 }
824 1660
… …
842pendingcb (EV_P_ ev_prepare *w, int revents) 1678pendingcb (EV_P_ ev_prepare *w, int revents)
843{ 1679{
844} 1680}
845 1681
846void noinline 1682void noinline
847ev_feed_event (EV_P_ void *w, int revents) 1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW
848{ 1684{
849 W w_ = (W)w; 1685 W w_ = (W)w;
850 int pri = ABSPRI (w_); 1686 int pri = ABSPRI (w_);
851 1687
852 if (expect_false (w_->pending)) 1688 if (expect_false (w_->pending))
… …
856 w_->pending = ++pendingcnt [pri]; 1692 w_->pending = ++pendingcnt [pri];
857 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
858 pendings [pri][w_->pending - 1].w = w_; 1694 pendings [pri][w_->pending - 1].w = w_;
859 pendings [pri][w_->pending - 1].events = revents; 1695 pendings [pri][w_->pending - 1].events = revents;
860 } 1696 }
1697
1698 pendingpri = NUMPRI - 1;
861} 1699}
862 1700
863inline_speed void 1701inline_speed void
864feed_reverse (EV_P_ W w) 1702feed_reverse (EV_P_ W w)
865{ 1703{
… …
885} 1723}
886 1724
887/*****************************************************************************/ 1725/*****************************************************************************/
888 1726
889inline_speed void 1727inline_speed void
890fd_event_nc (EV_P_ int fd, int revents) 1728fd_event_nocheck (EV_P_ int fd, int revents)
891{ 1729{
892 ANFD *anfd = anfds + fd; 1730 ANFD *anfd = anfds + fd;
893 ev_io *w; 1731 ev_io *w;
894 1732
895 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)
… …
907fd_event (EV_P_ int fd, int revents) 1745fd_event (EV_P_ int fd, int revents)
908{ 1746{
909 ANFD *anfd = anfds + fd; 1747 ANFD *anfd = anfds + fd;
910 1748
911 if (expect_true (!anfd->reify)) 1749 if (expect_true (!anfd->reify))
912 fd_event_nc (EV_A_ fd, revents); 1750 fd_event_nocheck (EV_A_ fd, revents);
913} 1751}
914 1752
915void 1753void
916ev_feed_fd_event (EV_P_ int fd, int revents) 1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
917{ 1755{
918 if (fd >= 0 && fd < anfdmax) 1756 if (fd >= 0 && fd < anfdmax)
919 fd_event_nc (EV_A_ fd, revents); 1757 fd_event_nocheck (EV_A_ fd, revents);
920} 1758}
921 1759
922/* make sure the external fd watch events are in-sync */ 1760/* make sure the external fd watch events are in-sync */
923/* with the kernel/libev internal state */ 1761/* with the kernel/libev internal state */
924inline_size void 1762inline_size void
925fd_reify (EV_P) 1763fd_reify (EV_P)
926{ 1764{
927 int i; 1765 int i;
928 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
929 for (i = 0; i < fdchangecnt; ++i) 1792 for (i = 0; i < fdchangecnt; ++i)
930 { 1793 {
931 int fd = fdchanges [i]; 1794 int fd = fdchanges [i];
932 ANFD *anfd = anfds + fd; 1795 ANFD *anfd = anfds + fd;
933 ev_io *w; 1796 ev_io *w;
934 1797
935 unsigned char events = 0; 1798 unsigned char o_events = anfd->events;
1799 unsigned char o_reify = anfd->reify;
936 1800
937 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1801 anfd->reify = 0;
938 events |= (unsigned char)w->events;
939 1802
940#if EV_SELECT_IS_WINSOCKET 1803 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
941 if (events)
942 { 1804 {
943 unsigned long arg; 1805 anfd->events = 0;
944 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1806
945 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 |= */
946 } 1812 }
947#endif
948 1813
949 { 1814 if (o_reify & EV__IOFDSET)
950 unsigned char o_events = anfd->events;
951 unsigned char o_reify = anfd->reify;
952
953 anfd->reify = 0;
954 anfd->events = events;
955
956 if (o_events != events || o_reify & EV__IOFDSET)
957 backend_modify (EV_A_ fd, o_events, events); 1815 backend_modify (EV_A_ fd, o_events, anfd->events);
958 }
959 } 1816 }
960 1817
961 fdchangecnt = 0; 1818 fdchangecnt = 0;
962} 1819}
963 1820
… …
975 fdchanges [fdchangecnt - 1] = fd; 1832 fdchanges [fdchangecnt - 1] = fd;
976 } 1833 }
977} 1834}
978 1835
979/* 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 */
980inline_speed void 1837inline_speed void ecb_cold
981fd_kill (EV_P_ int fd) 1838fd_kill (EV_P_ int fd)
982{ 1839{
983 ev_io *w; 1840 ev_io *w;
984 1841
985 while ((w = (ev_io *)anfds [fd].head)) 1842 while ((w = (ev_io *)anfds [fd].head))
… …
987 ev_io_stop (EV_A_ w); 1844 ev_io_stop (EV_A_ w);
988 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);
989 } 1846 }
990} 1847}
991 1848
992/* check whether the given fd is atcually valid, for error recovery */ 1849/* check whether the given fd is actually valid, for error recovery */
993inline_size int 1850inline_size int ecb_cold
994fd_valid (int fd) 1851fd_valid (int fd)
995{ 1852{
996#ifdef _WIN32 1853#ifdef _WIN32
997 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1854 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
998#else 1855#else
999 return fcntl (fd, F_GETFD) != -1; 1856 return fcntl (fd, F_GETFD) != -1;
1000#endif 1857#endif
1001} 1858}
1002 1859
1003/* called on EBADF to verify fds */ 1860/* called on EBADF to verify fds */
1004static void noinline 1861static void noinline ecb_cold
1005fd_ebadf (EV_P) 1862fd_ebadf (EV_P)
1006{ 1863{
1007 int fd; 1864 int fd;
1008 1865
1009 for (fd = 0; fd < anfdmax; ++fd) 1866 for (fd = 0; fd < anfdmax; ++fd)
… …
1011 if (!fd_valid (fd) && errno == EBADF) 1868 if (!fd_valid (fd) && errno == EBADF)
1012 fd_kill (EV_A_ fd); 1869 fd_kill (EV_A_ fd);
1013} 1870}
1014 1871
1015/* 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 */
1016static void noinline 1873static void noinline ecb_cold
1017fd_enomem (EV_P) 1874fd_enomem (EV_P)
1018{ 1875{
1019 int fd; 1876 int fd;
1020 1877
1021 for (fd = anfdmax; fd--; ) 1878 for (fd = anfdmax; fd--; )
… …
1039 anfds [fd].emask = 0; 1896 anfds [fd].emask = 0;
1040 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1897 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1041 } 1898 }
1042} 1899}
1043 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
1044/*****************************************************************************/ 1915/*****************************************************************************/
1045 1916
1046/* 1917/*
1047 * 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
1048 * 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
1049 * the branching factor of the d-tree. 1920 * the branching factor of the d-tree.
1050 */ 1921 */
1051 1922
1052/* 1923/*
… …
1200 2071
1201static ANSIG signals [EV_NSIG - 1]; 2072static ANSIG signals [EV_NSIG - 1];
1202 2073
1203/*****************************************************************************/ 2074/*****************************************************************************/
1204 2075
1205/* used to prepare libev internal fd's */ 2076#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1206/* 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
1207inline_speed void 2123inline_speed void
1208fd_intern (int fd) 2124evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1209{ 2125{
1210#ifdef _WIN32 2126 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1211 unsigned long arg = 1;
1212 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1213#else
1214 fcntl (fd, F_SETFD, FD_CLOEXEC);
1215 fcntl (fd, F_SETFL, O_NONBLOCK);
1216#endif
1217}
1218 2127
1219static void noinline 2128 if (expect_true (*flag))
1220evpipe_init (EV_P) 2129 return;
1221{ 2130
1222 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)
1223 { 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
1224#if EV_USE_EVENTFD 2147#if EV_USE_EVENTFD
1225 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2148 if (evpipe [0] < 0)
1226 if (evfd < 0 && errno == EINVAL)
1227 evfd = eventfd (0, 0);
1228
1229 if (evfd >= 0)
1230 { 2149 {
1231 evpipe [0] = -1; 2150 uint64_t counter = 1;
1232 fd_intern (evfd); /* doing it twice doesn't hurt */ 2151 write (evpipe [1], &counter, sizeof (uint64_t));
1233 ev_io_set (&pipe_w, evfd, EV_READ);
1234 } 2152 }
1235 else 2153 else
1236#endif 2154#endif
1237 { 2155 {
1238 while (pipe (evpipe)) 2156#ifdef _WIN32
1239 ev_syserr ("(libev) error creating signal/async pipe"); 2157 WSABUF buf;
1240 2158 DWORD sent;
1241 fd_intern (evpipe [0]); 2159 buf.buf = &buf;
1242 fd_intern (evpipe [1]); 2160 buf.len = 1;
1243 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
1244 } 2165 }
1245
1246 ev_io_start (EV_A_ &pipe_w);
1247 ev_unref (EV_A); /* watcher should not keep loop alive */
1248 }
1249}
1250
1251inline_size void
1252evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1253{
1254 if (!*flag)
1255 {
1256 int old_errno = errno; /* save errno because write might clobber it */
1257
1258 *flag = 1;
1259
1260#if EV_USE_EVENTFD
1261 if (evfd >= 0)
1262 {
1263 uint64_t counter = 1;
1264 write (evfd, &counter, sizeof (uint64_t));
1265 }
1266 else
1267#endif
1268 write (evpipe [1], &old_errno, 1);
1269 2166
1270 errno = old_errno; 2167 errno = old_errno;
1271 } 2168 }
1272} 2169}
1273 2170
… …
1276static void 2173static void
1277pipecb (EV_P_ ev_io *iow, int revents) 2174pipecb (EV_P_ ev_io *iow, int revents)
1278{ 2175{
1279 int i; 2176 int i;
1280 2177
2178 if (revents & EV_READ)
2179 {
1281#if EV_USE_EVENTFD 2180#if EV_USE_EVENTFD
1282 if (evfd >= 0) 2181 if (evpipe [0] < 0)
1283 { 2182 {
1284 uint64_t counter; 2183 uint64_t counter;
1285 read (evfd, &counter, sizeof (uint64_t)); 2184 read (evpipe [1], &counter, sizeof (uint64_t));
1286 } 2185 }
1287 else 2186 else
1288#endif 2187#endif
1289 { 2188 {
1290 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
1291 read (evpipe [0], &dummy, 1); 2198 read (evpipe [0], &dummy, sizeof (dummy));
2199#endif
2200 }
1292 } 2201 }
1293 2202
2203 pipe_write_skipped = 0;
2204
2205 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2206
2207#if EV_SIGNAL_ENABLE
1294 if (sig_pending) 2208 if (sig_pending)
1295 { 2209 {
1296 sig_pending = 0; 2210 sig_pending = 0;
2211
2212 ECB_MEMORY_FENCE;
1297 2213
1298 for (i = EV_NSIG - 1; i--; ) 2214 for (i = EV_NSIG - 1; i--; )
1299 if (expect_false (signals [i].pending)) 2215 if (expect_false (signals [i].pending))
1300 ev_feed_signal_event (EV_A_ i + 1); 2216 ev_feed_signal_event (EV_A_ i + 1);
1301 } 2217 }
2218#endif
1302 2219
1303#if EV_ASYNC_ENABLE 2220#if EV_ASYNC_ENABLE
1304 if (async_pending) 2221 if (async_pending)
1305 { 2222 {
1306 async_pending = 0; 2223 async_pending = 0;
2224
2225 ECB_MEMORY_FENCE;
1307 2226
1308 for (i = asynccnt; i--; ) 2227 for (i = asynccnt; i--; )
1309 if (asyncs [i]->sent) 2228 if (asyncs [i]->sent)
1310 { 2229 {
1311 asyncs [i]->sent = 0; 2230 asyncs [i]->sent = 0;
2231 ECB_MEMORY_FENCE_RELEASE;
1312 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2232 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1313 } 2233 }
1314 } 2234 }
1315#endif 2235#endif
1316} 2236}
1317 2237
1318/*****************************************************************************/ 2238/*****************************************************************************/
1319 2239
2240void
2241ev_feed_signal (int signum) EV_THROW
2242{
2243#if EV_MULTIPLICITY
2244 ECB_MEMORY_FENCE_ACQUIRE;
2245 EV_P = signals [signum - 1].loop;
2246
2247 if (!EV_A)
2248 return;
2249#endif
2250
2251 signals [signum - 1].pending = 1;
2252 evpipe_write (EV_A_ &sig_pending);
2253}
2254
1320static void 2255static void
1321ev_sighandler (int signum) 2256ev_sighandler (int signum)
1322{ 2257{
1323#if EV_MULTIPLICITY
1324 EV_P = signals [signum - 1].loop;
1325#endif
1326
1327#ifdef _WIN32 2258#ifdef _WIN32
1328 signal (signum, ev_sighandler); 2259 signal (signum, ev_sighandler);
1329#endif 2260#endif
1330 2261
1331 signals [signum - 1].pending = 1; 2262 ev_feed_signal (signum);
1332 evpipe_write (EV_A_ &sig_pending);
1333} 2263}
1334 2264
1335void noinline 2265void noinline
1336ev_feed_signal_event (EV_P_ int signum) 2266ev_feed_signal_event (EV_P_ int signum) EV_THROW
1337{ 2267{
1338 WL w; 2268 WL w;
1339 2269
1340 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2270 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1341 return; 2271 return;
1342 2272
1343 --signum; 2273 --signum;
1344 2274
1345#if EV_MULTIPLICITY 2275#if EV_MULTIPLICITY
… …
1349 if (expect_false (signals [signum].loop != EV_A)) 2279 if (expect_false (signals [signum].loop != EV_A))
1350 return; 2280 return;
1351#endif 2281#endif
1352 2282
1353 signals [signum].pending = 0; 2283 signals [signum].pending = 0;
2284 ECB_MEMORY_FENCE_RELEASE;
1354 2285
1355 for (w = signals [signum].head; w; w = w->next) 2286 for (w = signals [signum].head; w; w = w->next)
1356 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2287 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1357} 2288}
1358 2289
… …
1374 break; 2305 break;
1375 } 2306 }
1376} 2307}
1377#endif 2308#endif
1378 2309
2310#endif
2311
1379/*****************************************************************************/ 2312/*****************************************************************************/
1380 2313
2314#if EV_CHILD_ENABLE
1381static WL childs [EV_PID_HASHSIZE]; 2315static WL childs [EV_PID_HASHSIZE];
1382
1383#ifndef _WIN32
1384 2316
1385static ev_signal childev; 2317static ev_signal childev;
1386 2318
1387#ifndef WIFCONTINUED 2319#ifndef WIFCONTINUED
1388# define WIFCONTINUED(status) 0 2320# define WIFCONTINUED(status) 0
… …
1393child_reap (EV_P_ int chain, int pid, int status) 2325child_reap (EV_P_ int chain, int pid, int status)
1394{ 2326{
1395 ev_child *w; 2327 ev_child *w;
1396 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2328 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1397 2329
1398 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2330 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1399 { 2331 {
1400 if ((w->pid == pid || !w->pid) 2332 if ((w->pid == pid || !w->pid)
1401 && (!traced || (w->flags & 1))) 2333 && (!traced || (w->flags & 1)))
1402 { 2334 {
1403 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2335 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1428 /* make sure we are called again until all children have been reaped */ 2360 /* make sure we are called again until all children have been reaped */
1429 /* we need to do it this way so that the callback gets called before we continue */ 2361 /* we need to do it this way so that the callback gets called before we continue */
1430 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2362 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1431 2363
1432 child_reap (EV_A_ pid, pid, status); 2364 child_reap (EV_A_ pid, pid, status);
1433 if (EV_PID_HASHSIZE > 1) 2365 if ((EV_PID_HASHSIZE) > 1)
1434 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2366 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1435} 2367}
1436 2368
1437#endif 2369#endif
1438 2370
1439/*****************************************************************************/ 2371/*****************************************************************************/
1440 2372
2373#if EV_USE_IOCP
2374# include "ev_iocp.c"
2375#endif
1441#if EV_USE_PORT 2376#if EV_USE_PORT
1442# include "ev_port.c" 2377# include "ev_port.c"
1443#endif 2378#endif
1444#if EV_USE_KQUEUE 2379#if EV_USE_KQUEUE
1445# include "ev_kqueue.c" 2380# include "ev_kqueue.c"
… …
1452#endif 2387#endif
1453#if EV_USE_SELECT 2388#if EV_USE_SELECT
1454# include "ev_select.c" 2389# include "ev_select.c"
1455#endif 2390#endif
1456 2391
1457int 2392int ecb_cold
1458ev_version_major (void) 2393ev_version_major (void) EV_THROW
1459{ 2394{
1460 return EV_VERSION_MAJOR; 2395 return EV_VERSION_MAJOR;
1461} 2396}
1462 2397
1463int 2398int ecb_cold
1464ev_version_minor (void) 2399ev_version_minor (void) EV_THROW
1465{ 2400{
1466 return EV_VERSION_MINOR; 2401 return EV_VERSION_MINOR;
1467} 2402}
1468 2403
1469/* return true if we are running with elevated privileges and should ignore env variables */ 2404/* return true if we are running with elevated privileges and should ignore env variables */
1470int inline_size 2405int inline_size ecb_cold
1471enable_secure (void) 2406enable_secure (void)
1472{ 2407{
1473#ifdef _WIN32 2408#ifdef _WIN32
1474 return 0; 2409 return 0;
1475#else 2410#else
1476 return getuid () != geteuid () 2411 return getuid () != geteuid ()
1477 || getgid () != getegid (); 2412 || getgid () != getegid ();
1478#endif 2413#endif
1479} 2414}
1480 2415
1481unsigned int 2416unsigned int ecb_cold
1482ev_supported_backends (void) 2417ev_supported_backends (void) EV_THROW
1483{ 2418{
1484 unsigned int flags = 0; 2419 unsigned int flags = 0;
1485 2420
1486 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2421 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1487 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2422 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1490 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2425 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1491 2426
1492 return flags; 2427 return flags;
1493} 2428}
1494 2429
1495unsigned int 2430unsigned int ecb_cold
1496ev_recommended_backends (void) 2431ev_recommended_backends (void) EV_THROW
1497{ 2432{
1498 unsigned int flags = ev_supported_backends (); 2433 unsigned int flags = ev_supported_backends ();
1499 2434
1500#ifndef __NetBSD__ 2435#ifndef __NetBSD__
1501 /* kqueue is borked on everything but netbsd apparently */ 2436 /* kqueue is borked on everything but netbsd apparently */
… …
1505#ifdef __APPLE__ 2440#ifdef __APPLE__
1506 /* only select works correctly on that "unix-certified" platform */ 2441 /* only select works correctly on that "unix-certified" platform */
1507 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2442 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1508 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2443 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1509#endif 2444#endif
2445#ifdef __FreeBSD__
2446 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2447#endif
1510 2448
1511 return flags; 2449 return flags;
1512} 2450}
1513 2451
2452unsigned int ecb_cold
2453ev_embeddable_backends (void) EV_THROW
2454{
2455 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2456
2457 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2458 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2459 flags &= ~EVBACKEND_EPOLL;
2460
2461 return flags;
2462}
2463
1514unsigned int 2464unsigned int
1515ev_embeddable_backends (void) 2465ev_backend (EV_P) EV_THROW
1516{ 2466{
1517 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2467 return backend;
1518
1519 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1520 /* please fix it and tell me how to detect the fix */
1521 flags &= ~EVBACKEND_EPOLL;
1522
1523 return flags;
1524} 2468}
1525 2469
2470#if EV_FEATURE_API
1526unsigned int 2471unsigned int
1527ev_backend (EV_P) 2472ev_iteration (EV_P) EV_THROW
1528{ 2473{
1529 return backend; 2474 return loop_count;
1530} 2475}
1531 2476
1532#if EV_MINIMAL < 2
1533unsigned int 2477unsigned int
1534ev_loop_count (EV_P) 2478ev_depth (EV_P) EV_THROW
1535{
1536 return loop_count;
1537}
1538
1539unsigned int
1540ev_loop_depth (EV_P)
1541{ 2479{
1542 return loop_depth; 2480 return loop_depth;
1543} 2481}
1544 2482
1545void 2483void
1546ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2484ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1547{ 2485{
1548 io_blocktime = interval; 2486 io_blocktime = interval;
1549} 2487}
1550 2488
1551void 2489void
1552ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2490ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1553{ 2491{
1554 timeout_blocktime = interval; 2492 timeout_blocktime = interval;
1555} 2493}
1556 2494
1557void 2495void
1558ev_set_userdata (EV_P_ void *data) 2496ev_set_userdata (EV_P_ void *data) EV_THROW
1559{ 2497{
1560 userdata = data; 2498 userdata = data;
1561} 2499}
1562 2500
1563void * 2501void *
1564ev_userdata (EV_P) 2502ev_userdata (EV_P) EV_THROW
1565{ 2503{
1566 return userdata; 2504 return userdata;
1567} 2505}
1568 2506
2507void
1569void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2508ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1570{ 2509{
1571 invoke_cb = invoke_pending_cb; 2510 invoke_cb = invoke_pending_cb;
1572} 2511}
1573 2512
2513void
1574void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2514ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1575{ 2515{
1576 release_cb = release; 2516 release_cb = release;
1577 acquire_cb = acquire; 2517 acquire_cb = acquire;
1578} 2518}
1579#endif 2519#endif
1580 2520
1581/* initialise a loop structure, must be zero-initialised */ 2521/* initialise a loop structure, must be zero-initialised */
1582static void noinline 2522static void noinline ecb_cold
1583loop_init (EV_P_ unsigned int flags) 2523loop_init (EV_P_ unsigned int flags) EV_THROW
1584{ 2524{
1585 if (!backend) 2525 if (!backend)
1586 { 2526 {
2527 origflags = flags;
2528
1587#if EV_USE_REALTIME 2529#if EV_USE_REALTIME
1588 if (!have_realtime) 2530 if (!have_realtime)
1589 { 2531 {
1590 struct timespec ts; 2532 struct timespec ts;
1591 2533
… …
1613 if (!(flags & EVFLAG_NOENV) 2555 if (!(flags & EVFLAG_NOENV)
1614 && !enable_secure () 2556 && !enable_secure ()
1615 && getenv ("LIBEV_FLAGS")) 2557 && getenv ("LIBEV_FLAGS"))
1616 flags = atoi (getenv ("LIBEV_FLAGS")); 2558 flags = atoi (getenv ("LIBEV_FLAGS"));
1617 2559
1618 ev_rt_now = ev_time (); 2560 ev_rt_now = ev_time ();
1619 mn_now = get_clock (); 2561 mn_now = get_clock ();
1620 now_floor = mn_now; 2562 now_floor = mn_now;
1621 rtmn_diff = ev_rt_now - mn_now; 2563 rtmn_diff = ev_rt_now - mn_now;
1622#if EV_MINIMAL < 2 2564#if EV_FEATURE_API
1623 invoke_cb = ev_invoke_pending; 2565 invoke_cb = ev_invoke_pending;
1624#endif 2566#endif
1625 2567
1626 io_blocktime = 0.; 2568 io_blocktime = 0.;
1627 timeout_blocktime = 0.; 2569 timeout_blocktime = 0.;
1628 backend = 0; 2570 backend = 0;
1629 backend_fd = -1; 2571 backend_fd = -1;
1630 sig_pending = 0; 2572 sig_pending = 0;
1631#if EV_ASYNC_ENABLE 2573#if EV_ASYNC_ENABLE
1632 async_pending = 0; 2574 async_pending = 0;
1633#endif 2575#endif
2576 pipe_write_skipped = 0;
2577 pipe_write_wanted = 0;
2578 evpipe [0] = -1;
2579 evpipe [1] = -1;
1634#if EV_USE_INOTIFY 2580#if EV_USE_INOTIFY
1635 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2581 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1636#endif 2582#endif
1637#if EV_USE_SIGNALFD 2583#if EV_USE_SIGNALFD
1638 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2584 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1639#endif 2585#endif
1640 2586
1641 if (!(flags & 0x0000ffffU)) 2587 if (!(flags & EVBACKEND_MASK))
1642 flags |= ev_recommended_backends (); 2588 flags |= ev_recommended_backends ();
1643 2589
2590#if EV_USE_IOCP
2591 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2592#endif
1644#if EV_USE_PORT 2593#if EV_USE_PORT
1645 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2594 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1646#endif 2595#endif
1647#if EV_USE_KQUEUE 2596#if EV_USE_KQUEUE
1648 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2597 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1657 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2606 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1658#endif 2607#endif
1659 2608
1660 ev_prepare_init (&pending_w, pendingcb); 2609 ev_prepare_init (&pending_w, pendingcb);
1661 2610
2611#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1662 ev_init (&pipe_w, pipecb); 2612 ev_init (&pipe_w, pipecb);
1663 ev_set_priority (&pipe_w, EV_MAXPRI); 2613 ev_set_priority (&pipe_w, EV_MAXPRI);
2614#endif
1664 } 2615 }
1665} 2616}
1666 2617
1667/* free up a loop structure */ 2618/* free up a loop structure */
1668static void noinline 2619void ecb_cold
1669loop_destroy (EV_P) 2620ev_loop_destroy (EV_P)
1670{ 2621{
1671 int i; 2622 int i;
2623
2624#if EV_MULTIPLICITY
2625 /* mimic free (0) */
2626 if (!EV_A)
2627 return;
2628#endif
2629
2630#if EV_CLEANUP_ENABLE
2631 /* queue cleanup watchers (and execute them) */
2632 if (expect_false (cleanupcnt))
2633 {
2634 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2635 EV_INVOKE_PENDING;
2636 }
2637#endif
2638
2639#if EV_CHILD_ENABLE
2640 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2641 {
2642 ev_ref (EV_A); /* child watcher */
2643 ev_signal_stop (EV_A_ &childev);
2644 }
2645#endif
1672 2646
1673 if (ev_is_active (&pipe_w)) 2647 if (ev_is_active (&pipe_w))
1674 { 2648 {
1675 /*ev_ref (EV_A);*/ 2649 /*ev_ref (EV_A);*/
1676 /*ev_io_stop (EV_A_ &pipe_w);*/ 2650 /*ev_io_stop (EV_A_ &pipe_w);*/
1677 2651
1678#if EV_USE_EVENTFD
1679 if (evfd >= 0)
1680 close (evfd);
1681#endif
1682
1683 if (evpipe [0] >= 0)
1684 {
1685 EV_WIN32_CLOSE_FD (evpipe [0]); 2652 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1686 EV_WIN32_CLOSE_FD (evpipe [1]); 2653 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1687 }
1688 } 2654 }
1689 2655
1690#if EV_USE_SIGNALFD 2656#if EV_USE_SIGNALFD
1691 if (ev_is_active (&sigfd_w)) 2657 if (ev_is_active (&sigfd_w))
1692 close (sigfd); 2658 close (sigfd);
… …
1698#endif 2664#endif
1699 2665
1700 if (backend_fd >= 0) 2666 if (backend_fd >= 0)
1701 close (backend_fd); 2667 close (backend_fd);
1702 2668
2669#if EV_USE_IOCP
2670 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2671#endif
1703#if EV_USE_PORT 2672#if EV_USE_PORT
1704 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2673 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1705#endif 2674#endif
1706#if EV_USE_KQUEUE 2675#if EV_USE_KQUEUE
1707 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2676 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1734 array_free (periodic, EMPTY); 2703 array_free (periodic, EMPTY);
1735#endif 2704#endif
1736#if EV_FORK_ENABLE 2705#if EV_FORK_ENABLE
1737 array_free (fork, EMPTY); 2706 array_free (fork, EMPTY);
1738#endif 2707#endif
2708#if EV_CLEANUP_ENABLE
2709 array_free (cleanup, EMPTY);
2710#endif
1739 array_free (prepare, EMPTY); 2711 array_free (prepare, EMPTY);
1740 array_free (check, EMPTY); 2712 array_free (check, EMPTY);
1741#if EV_ASYNC_ENABLE 2713#if EV_ASYNC_ENABLE
1742 array_free (async, EMPTY); 2714 array_free (async, EMPTY);
1743#endif 2715#endif
1744 2716
1745 backend = 0; 2717 backend = 0;
2718
2719#if EV_MULTIPLICITY
2720 if (ev_is_default_loop (EV_A))
2721#endif
2722 ev_default_loop_ptr = 0;
2723#if EV_MULTIPLICITY
2724 else
2725 ev_free (EV_A);
2726#endif
1746} 2727}
1747 2728
1748#if EV_USE_INOTIFY 2729#if EV_USE_INOTIFY
1749inline_size void infy_fork (EV_P); 2730inline_size void infy_fork (EV_P);
1750#endif 2731#endif
… …
1763#endif 2744#endif
1764#if EV_USE_INOTIFY 2745#if EV_USE_INOTIFY
1765 infy_fork (EV_A); 2746 infy_fork (EV_A);
1766#endif 2747#endif
1767 2748
2749#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1768 if (ev_is_active (&pipe_w)) 2750 if (ev_is_active (&pipe_w))
1769 { 2751 {
1770 /* this "locks" the handlers against writing to the pipe */ 2752 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1771 /* while we modify the fd vars */
1772 sig_pending = 1;
1773#if EV_ASYNC_ENABLE
1774 async_pending = 1;
1775#endif
1776 2753
1777 ev_ref (EV_A); 2754 ev_ref (EV_A);
1778 ev_io_stop (EV_A_ &pipe_w); 2755 ev_io_stop (EV_A_ &pipe_w);
1779 2756
1780#if EV_USE_EVENTFD
1781 if (evfd >= 0)
1782 close (evfd);
1783#endif
1784
1785 if (evpipe [0] >= 0) 2757 if (evpipe [0] >= 0)
1786 {
1787 EV_WIN32_CLOSE_FD (evpipe [0]); 2758 EV_WIN32_CLOSE_FD (evpipe [0]);
1788 EV_WIN32_CLOSE_FD (evpipe [1]);
1789 }
1790 2759
1791 evpipe_init (EV_A); 2760 evpipe_init (EV_A);
1792 /* now iterate over everything, in case we missed something */ 2761 /* iterate over everything, in case we missed something before */
1793 pipecb (EV_A_ &pipe_w, EV_READ); 2762 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1794 } 2763 }
2764#endif
1795 2765
1796 postfork = 0; 2766 postfork = 0;
1797} 2767}
1798 2768
1799#if EV_MULTIPLICITY 2769#if EV_MULTIPLICITY
1800 2770
1801struct ev_loop * 2771struct ev_loop * ecb_cold
1802ev_loop_new (unsigned int flags) 2772ev_loop_new (unsigned int flags) EV_THROW
1803{ 2773{
1804 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2774 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1805 2775
1806 memset (EV_A, 0, sizeof (struct ev_loop)); 2776 memset (EV_A, 0, sizeof (struct ev_loop));
1807 loop_init (EV_A_ flags); 2777 loop_init (EV_A_ flags);
1808 2778
1809 if (ev_backend (EV_A)) 2779 if (ev_backend (EV_A))
1810 return EV_A; 2780 return EV_A;
1811 2781
2782 ev_free (EV_A);
1812 return 0; 2783 return 0;
1813} 2784}
1814 2785
1815void
1816ev_loop_destroy (EV_P)
1817{
1818 loop_destroy (EV_A);
1819 ev_free (loop);
1820}
1821
1822void
1823ev_loop_fork (EV_P)
1824{
1825 postfork = 1; /* must be in line with ev_default_fork */
1826}
1827#endif /* multiplicity */ 2786#endif /* multiplicity */
1828 2787
1829#if EV_VERIFY 2788#if EV_VERIFY
1830static void noinline 2789static void noinline ecb_cold
1831verify_watcher (EV_P_ W w) 2790verify_watcher (EV_P_ W w)
1832{ 2791{
1833 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2792 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1834 2793
1835 if (w->pending) 2794 if (w->pending)
1836 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2795 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1837} 2796}
1838 2797
1839static void noinline 2798static void noinline ecb_cold
1840verify_heap (EV_P_ ANHE *heap, int N) 2799verify_heap (EV_P_ ANHE *heap, int N)
1841{ 2800{
1842 int i; 2801 int i;
1843 2802
1844 for (i = HEAP0; i < N + HEAP0; ++i) 2803 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1849 2808
1850 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2809 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1851 } 2810 }
1852} 2811}
1853 2812
1854static void noinline 2813static void noinline ecb_cold
1855array_verify (EV_P_ W *ws, int cnt) 2814array_verify (EV_P_ W *ws, int cnt)
1856{ 2815{
1857 while (cnt--) 2816 while (cnt--)
1858 { 2817 {
1859 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2818 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1860 verify_watcher (EV_A_ ws [cnt]); 2819 verify_watcher (EV_A_ ws [cnt]);
1861 } 2820 }
1862} 2821}
1863#endif 2822#endif
1864 2823
1865#if EV_MINIMAL < 2 2824#if EV_FEATURE_API
1866void 2825void ecb_cold
1867ev_loop_verify (EV_P) 2826ev_verify (EV_P) EV_THROW
1868{ 2827{
1869#if EV_VERIFY 2828#if EV_VERIFY
1870 int i; 2829 int i;
1871 WL w; 2830 WL w, w2;
1872 2831
1873 assert (activecnt >= -1); 2832 assert (activecnt >= -1);
1874 2833
1875 assert (fdchangemax >= fdchangecnt); 2834 assert (fdchangemax >= fdchangecnt);
1876 for (i = 0; i < fdchangecnt; ++i) 2835 for (i = 0; i < fdchangecnt; ++i)
1877 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2836 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1878 2837
1879 assert (anfdmax >= 0); 2838 assert (anfdmax >= 0);
1880 for (i = 0; i < anfdmax; ++i) 2839 for (i = 0; i < anfdmax; ++i)
2840 {
2841 int j = 0;
2842
1881 for (w = anfds [i].head; w; w = w->next) 2843 for (w = w2 = anfds [i].head; w; w = w->next)
1882 { 2844 {
1883 verify_watcher (EV_A_ (W)w); 2845 verify_watcher (EV_A_ (W)w);
2846
2847 if (j++ & 1)
2848 {
2849 assert (("libev: io watcher list contains a loop", w != w2));
2850 w2 = w2->next;
2851 }
2852
1884 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2853 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1885 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2854 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1886 } 2855 }
2856 }
1887 2857
1888 assert (timermax >= timercnt); 2858 assert (timermax >= timercnt);
1889 verify_heap (EV_A_ timers, timercnt); 2859 verify_heap (EV_A_ timers, timercnt);
1890 2860
1891#if EV_PERIODIC_ENABLE 2861#if EV_PERIODIC_ENABLE
… …
1906#if EV_FORK_ENABLE 2876#if EV_FORK_ENABLE
1907 assert (forkmax >= forkcnt); 2877 assert (forkmax >= forkcnt);
1908 array_verify (EV_A_ (W *)forks, forkcnt); 2878 array_verify (EV_A_ (W *)forks, forkcnt);
1909#endif 2879#endif
1910 2880
2881#if EV_CLEANUP_ENABLE
2882 assert (cleanupmax >= cleanupcnt);
2883 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2884#endif
2885
1911#if EV_ASYNC_ENABLE 2886#if EV_ASYNC_ENABLE
1912 assert (asyncmax >= asynccnt); 2887 assert (asyncmax >= asynccnt);
1913 array_verify (EV_A_ (W *)asyncs, asynccnt); 2888 array_verify (EV_A_ (W *)asyncs, asynccnt);
1914#endif 2889#endif
1915 2890
2891#if EV_PREPARE_ENABLE
1916 assert (preparemax >= preparecnt); 2892 assert (preparemax >= preparecnt);
1917 array_verify (EV_A_ (W *)prepares, preparecnt); 2893 array_verify (EV_A_ (W *)prepares, preparecnt);
2894#endif
1918 2895
2896#if EV_CHECK_ENABLE
1919 assert (checkmax >= checkcnt); 2897 assert (checkmax >= checkcnt);
1920 array_verify (EV_A_ (W *)checks, checkcnt); 2898 array_verify (EV_A_ (W *)checks, checkcnt);
2899#endif
1921 2900
1922# if 0 2901# if 0
2902#if EV_CHILD_ENABLE
1923 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2903 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1924 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2904 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2905#endif
1925# endif 2906# endif
1926#endif 2907#endif
1927} 2908}
1928#endif 2909#endif
1929 2910
1930#if EV_MULTIPLICITY 2911#if EV_MULTIPLICITY
1931struct ev_loop * 2912struct ev_loop * ecb_cold
1932ev_default_loop_init (unsigned int flags)
1933#else 2913#else
1934int 2914int
2915#endif
1935ev_default_loop (unsigned int flags) 2916ev_default_loop (unsigned int flags) EV_THROW
1936#endif
1937{ 2917{
1938 if (!ev_default_loop_ptr) 2918 if (!ev_default_loop_ptr)
1939 { 2919 {
1940#if EV_MULTIPLICITY 2920#if EV_MULTIPLICITY
1941 EV_P = ev_default_loop_ptr = &default_loop_struct; 2921 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1945 2925
1946 loop_init (EV_A_ flags); 2926 loop_init (EV_A_ flags);
1947 2927
1948 if (ev_backend (EV_A)) 2928 if (ev_backend (EV_A))
1949 { 2929 {
1950#ifndef _WIN32 2930#if EV_CHILD_ENABLE
1951 ev_signal_init (&childev, childcb, SIGCHLD); 2931 ev_signal_init (&childev, childcb, SIGCHLD);
1952 ev_set_priority (&childev, EV_MAXPRI); 2932 ev_set_priority (&childev, EV_MAXPRI);
1953 ev_signal_start (EV_A_ &childev); 2933 ev_signal_start (EV_A_ &childev);
1954 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2934 ev_unref (EV_A); /* child watcher should not keep loop alive */
1955#endif 2935#endif
… …
1960 2940
1961 return ev_default_loop_ptr; 2941 return ev_default_loop_ptr;
1962} 2942}
1963 2943
1964void 2944void
1965ev_default_destroy (void) 2945ev_loop_fork (EV_P) EV_THROW
1966{ 2946{
1967#if EV_MULTIPLICITY 2947 postfork = 1;
1968 EV_P = ev_default_loop_ptr;
1969#endif
1970
1971 ev_default_loop_ptr = 0;
1972
1973#ifndef _WIN32
1974 ev_ref (EV_A); /* child watcher */
1975 ev_signal_stop (EV_A_ &childev);
1976#endif
1977
1978 loop_destroy (EV_A);
1979}
1980
1981void
1982ev_default_fork (void)
1983{
1984#if EV_MULTIPLICITY
1985 EV_P = ev_default_loop_ptr;
1986#endif
1987
1988 postfork = 1; /* must be in line with ev_loop_fork */
1989} 2948}
1990 2949
1991/*****************************************************************************/ 2950/*****************************************************************************/
1992 2951
1993void 2952void
… …
1995{ 2954{
1996 EV_CB_INVOKE ((W)w, revents); 2955 EV_CB_INVOKE ((W)w, revents);
1997} 2956}
1998 2957
1999unsigned int 2958unsigned int
2000ev_pending_count (EV_P) 2959ev_pending_count (EV_P) EV_THROW
2001{ 2960{
2002 int pri; 2961 int pri;
2003 unsigned int count = 0; 2962 unsigned int count = 0;
2004 2963
2005 for (pri = NUMPRI; pri--; ) 2964 for (pri = NUMPRI; pri--; )
… …
2009} 2968}
2010 2969
2011void noinline 2970void noinline
2012ev_invoke_pending (EV_P) 2971ev_invoke_pending (EV_P)
2013{ 2972{
2014 int pri; 2973 pendingpri = NUMPRI;
2015 2974
2016 for (pri = NUMPRI; pri--; ) 2975 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2976 {
2977 --pendingpri;
2978
2017 while (pendingcnt [pri]) 2979 while (pendingcnt [pendingpri])
2018 { 2980 {
2019 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2981 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2020 2982
2021 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2022 /* ^ this is no longer true, as pending_w could be here */
2023
2024 p->w->pending = 0; 2983 p->w->pending = 0;
2025 EV_CB_INVOKE (p->w, p->events); 2984 EV_CB_INVOKE (p->w, p->events);
2026 EV_FREQUENT_CHECK; 2985 EV_FREQUENT_CHECK;
2027 } 2986 }
2987 }
2028} 2988}
2029 2989
2030#if EV_IDLE_ENABLE 2990#if EV_IDLE_ENABLE
2031/* make idle watchers pending. this handles the "call-idle */ 2991/* make idle watchers pending. this handles the "call-idle */
2032/* only when higher priorities are idle" logic */ 2992/* only when higher priorities are idle" logic */
… …
2084 EV_FREQUENT_CHECK; 3044 EV_FREQUENT_CHECK;
2085 feed_reverse (EV_A_ (W)w); 3045 feed_reverse (EV_A_ (W)w);
2086 } 3046 }
2087 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 3047 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2088 3048
2089 feed_reverse_done (EV_A_ EV_TIMEOUT); 3049 feed_reverse_done (EV_A_ EV_TIMER);
2090 } 3050 }
2091} 3051}
2092 3052
2093#if EV_PERIODIC_ENABLE 3053#if EV_PERIODIC_ENABLE
3054
3055static void noinline
3056periodic_recalc (EV_P_ ev_periodic *w)
3057{
3058 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3059 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3060
3061 /* the above almost always errs on the low side */
3062 while (at <= ev_rt_now)
3063 {
3064 ev_tstamp nat = at + w->interval;
3065
3066 /* when resolution fails us, we use ev_rt_now */
3067 if (expect_false (nat == at))
3068 {
3069 at = ev_rt_now;
3070 break;
3071 }
3072
3073 at = nat;
3074 }
3075
3076 ev_at (w) = at;
3077}
3078
2094/* make periodics pending */ 3079/* make periodics pending */
2095inline_size void 3080inline_size void
2096periodics_reify (EV_P) 3081periodics_reify (EV_P)
2097{ 3082{
2098 EV_FREQUENT_CHECK; 3083 EV_FREQUENT_CHECK;
2099 3084
2100 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3085 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2101 { 3086 {
2102 int feed_count = 0;
2103
2104 do 3087 do
2105 { 3088 {
2106 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3089 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2107 3090
2108 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3091 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2117 ANHE_at_cache (periodics [HEAP0]); 3100 ANHE_at_cache (periodics [HEAP0]);
2118 downheap (periodics, periodiccnt, HEAP0); 3101 downheap (periodics, periodiccnt, HEAP0);
2119 } 3102 }
2120 else if (w->interval) 3103 else if (w->interval)
2121 { 3104 {
2122 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3105 periodic_recalc (EV_A_ w);
2123 /* if next trigger time is not sufficiently in the future, put it there */
2124 /* this might happen because of floating point inexactness */
2125 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2126 {
2127 ev_at (w) += w->interval;
2128
2129 /* if interval is unreasonably low we might still have a time in the past */
2130 /* so correct this. this will make the periodic very inexact, but the user */
2131 /* has effectively asked to get triggered more often than possible */
2132 if (ev_at (w) < ev_rt_now)
2133 ev_at (w) = ev_rt_now;
2134 }
2135
2136 ANHE_at_cache (periodics [HEAP0]); 3106 ANHE_at_cache (periodics [HEAP0]);
2137 downheap (periodics, periodiccnt, HEAP0); 3107 downheap (periodics, periodiccnt, HEAP0);
2138 } 3108 }
2139 else 3109 else
2140 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3110 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2147 feed_reverse_done (EV_A_ EV_PERIODIC); 3117 feed_reverse_done (EV_A_ EV_PERIODIC);
2148 } 3118 }
2149} 3119}
2150 3120
2151/* simply recalculate all periodics */ 3121/* simply recalculate all periodics */
2152/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 3122/* TODO: maybe ensure that at least one event happens when jumping forward? */
2153static void noinline 3123static void noinline ecb_cold
2154periodics_reschedule (EV_P) 3124periodics_reschedule (EV_P)
2155{ 3125{
2156 int i; 3126 int i;
2157 3127
2158 /* adjust periodics after time jump */ 3128 /* adjust periodics after time jump */
… …
2161 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3131 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2162 3132
2163 if (w->reschedule_cb) 3133 if (w->reschedule_cb)
2164 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3134 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2165 else if (w->interval) 3135 else if (w->interval)
2166 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3136 periodic_recalc (EV_A_ w);
2167 3137
2168 ANHE_at_cache (periodics [i]); 3138 ANHE_at_cache (periodics [i]);
2169 } 3139 }
2170 3140
2171 reheap (periodics, periodiccnt); 3141 reheap (periodics, periodiccnt);
2172} 3142}
2173#endif 3143#endif
2174 3144
2175/* adjust all timers by a given offset */ 3145/* adjust all timers by a given offset */
2176static void noinline 3146static void noinline ecb_cold
2177timers_reschedule (EV_P_ ev_tstamp adjust) 3147timers_reschedule (EV_P_ ev_tstamp adjust)
2178{ 3148{
2179 int i; 3149 int i;
2180 3150
2181 for (i = 0; i < timercnt; ++i) 3151 for (i = 0; i < timercnt; ++i)
… …
2218 * doesn't hurt either as we only do this on time-jumps or 3188 * doesn't hurt either as we only do this on time-jumps or
2219 * in the unlikely event of having been preempted here. 3189 * in the unlikely event of having been preempted here.
2220 */ 3190 */
2221 for (i = 4; --i; ) 3191 for (i = 4; --i; )
2222 { 3192 {
3193 ev_tstamp diff;
2223 rtmn_diff = ev_rt_now - mn_now; 3194 rtmn_diff = ev_rt_now - mn_now;
2224 3195
3196 diff = odiff - rtmn_diff;
3197
2225 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3198 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2226 return; /* all is well */ 3199 return; /* all is well */
2227 3200
2228 ev_rt_now = ev_time (); 3201 ev_rt_now = ev_time ();
2229 mn_now = get_clock (); 3202 mn_now = get_clock ();
2230 now_floor = mn_now; 3203 now_floor = mn_now;
… …
2252 3225
2253 mn_now = ev_rt_now; 3226 mn_now = ev_rt_now;
2254 } 3227 }
2255} 3228}
2256 3229
2257void 3230int
2258ev_loop (EV_P_ int flags) 3231ev_run (EV_P_ int flags)
2259{ 3232{
2260#if EV_MINIMAL < 2 3233#if EV_FEATURE_API
2261 ++loop_depth; 3234 ++loop_depth;
2262#endif 3235#endif
2263 3236
2264 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3237 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2265 3238
2266 loop_done = EVUNLOOP_CANCEL; 3239 loop_done = EVBREAK_CANCEL;
2267 3240
2268 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3241 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2269 3242
2270 do 3243 do
2271 { 3244 {
2272#if EV_VERIFY >= 2 3245#if EV_VERIFY >= 2
2273 ev_loop_verify (EV_A); 3246 ev_verify (EV_A);
2274#endif 3247#endif
2275 3248
2276#ifndef _WIN32 3249#ifndef _WIN32
2277 if (expect_false (curpid)) /* penalise the forking check even more */ 3250 if (expect_false (curpid)) /* penalise the forking check even more */
2278 if (expect_false (getpid () != curpid)) 3251 if (expect_false (getpid () != curpid))
… …
2290 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3263 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2291 EV_INVOKE_PENDING; 3264 EV_INVOKE_PENDING;
2292 } 3265 }
2293#endif 3266#endif
2294 3267
3268#if EV_PREPARE_ENABLE
2295 /* queue prepare watchers (and execute them) */ 3269 /* queue prepare watchers (and execute them) */
2296 if (expect_false (preparecnt)) 3270 if (expect_false (preparecnt))
2297 { 3271 {
2298 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3272 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2299 EV_INVOKE_PENDING; 3273 EV_INVOKE_PENDING;
2300 } 3274 }
3275#endif
2301 3276
2302 if (expect_false (loop_done)) 3277 if (expect_false (loop_done))
2303 break; 3278 break;
2304 3279
2305 /* we might have forked, so reify kernel state if necessary */ 3280 /* we might have forked, so reify kernel state if necessary */
… …
2312 /* calculate blocking time */ 3287 /* calculate blocking time */
2313 { 3288 {
2314 ev_tstamp waittime = 0.; 3289 ev_tstamp waittime = 0.;
2315 ev_tstamp sleeptime = 0.; 3290 ev_tstamp sleeptime = 0.;
2316 3291
3292 /* remember old timestamp for io_blocktime calculation */
3293 ev_tstamp prev_mn_now = mn_now;
3294
3295 /* update time to cancel out callback processing overhead */
3296 time_update (EV_A_ 1e100);
3297
3298 /* from now on, we want a pipe-wake-up */
3299 pipe_write_wanted = 1;
3300
3301 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3302
2317 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3303 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2318 { 3304 {
2319 /* remember old timestamp for io_blocktime calculation */
2320 ev_tstamp prev_mn_now = mn_now;
2321
2322 /* update time to cancel out callback processing overhead */
2323 time_update (EV_A_ 1e100);
2324
2325 waittime = MAX_BLOCKTIME; 3305 waittime = MAX_BLOCKTIME;
2326 3306
2327 if (timercnt) 3307 if (timercnt)
2328 { 3308 {
2329 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3309 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2330 if (waittime > to) waittime = to; 3310 if (waittime > to) waittime = to;
2331 } 3311 }
2332 3312
2333#if EV_PERIODIC_ENABLE 3313#if EV_PERIODIC_ENABLE
2334 if (periodiccnt) 3314 if (periodiccnt)
2335 { 3315 {
2336 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3316 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2337 if (waittime > to) waittime = to; 3317 if (waittime > to) waittime = to;
2338 } 3318 }
2339#endif 3319#endif
2340 3320
2341 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3321 /* don't let timeouts decrease the waittime below timeout_blocktime */
2342 if (expect_false (waittime < timeout_blocktime)) 3322 if (expect_false (waittime < timeout_blocktime))
2343 waittime = timeout_blocktime; 3323 waittime = timeout_blocktime;
3324
3325 /* at this point, we NEED to wait, so we have to ensure */
3326 /* to pass a minimum nonzero value to the backend */
3327 if (expect_false (waittime < backend_mintime))
3328 waittime = backend_mintime;
2344 3329
2345 /* extra check because io_blocktime is commonly 0 */ 3330 /* extra check because io_blocktime is commonly 0 */
2346 if (expect_false (io_blocktime)) 3331 if (expect_false (io_blocktime))
2347 { 3332 {
2348 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3333 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2349 3334
2350 if (sleeptime > waittime - backend_fudge) 3335 if (sleeptime > waittime - backend_mintime)
2351 sleeptime = waittime - backend_fudge; 3336 sleeptime = waittime - backend_mintime;
2352 3337
2353 if (expect_true (sleeptime > 0.)) 3338 if (expect_true (sleeptime > 0.))
2354 { 3339 {
2355 ev_sleep (sleeptime); 3340 ev_sleep (sleeptime);
2356 waittime -= sleeptime; 3341 waittime -= sleeptime;
2357 } 3342 }
2358 } 3343 }
2359 } 3344 }
2360 3345
2361#if EV_MINIMAL < 2 3346#if EV_FEATURE_API
2362 ++loop_count; 3347 ++loop_count;
2363#endif 3348#endif
2364 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3349 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2365 backend_poll (EV_A_ waittime); 3350 backend_poll (EV_A_ waittime);
2366 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3351 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3352
3353 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3354
3355 ECB_MEMORY_FENCE_ACQUIRE;
3356 if (pipe_write_skipped)
3357 {
3358 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3359 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3360 }
3361
2367 3362
2368 /* update ev_rt_now, do magic */ 3363 /* update ev_rt_now, do magic */
2369 time_update (EV_A_ waittime + sleeptime); 3364 time_update (EV_A_ waittime + sleeptime);
2370 } 3365 }
2371 3366
… …
2378#if EV_IDLE_ENABLE 3373#if EV_IDLE_ENABLE
2379 /* queue idle watchers unless other events are pending */ 3374 /* queue idle watchers unless other events are pending */
2380 idle_reify (EV_A); 3375 idle_reify (EV_A);
2381#endif 3376#endif
2382 3377
3378#if EV_CHECK_ENABLE
2383 /* queue check watchers, to be executed first */ 3379 /* queue check watchers, to be executed first */
2384 if (expect_false (checkcnt)) 3380 if (expect_false (checkcnt))
2385 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3381 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3382#endif
2386 3383
2387 EV_INVOKE_PENDING; 3384 EV_INVOKE_PENDING;
2388 } 3385 }
2389 while (expect_true ( 3386 while (expect_true (
2390 activecnt 3387 activecnt
2391 && !loop_done 3388 && !loop_done
2392 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3389 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2393 )); 3390 ));
2394 3391
2395 if (loop_done == EVUNLOOP_ONE) 3392 if (loop_done == EVBREAK_ONE)
2396 loop_done = EVUNLOOP_CANCEL; 3393 loop_done = EVBREAK_CANCEL;
2397 3394
2398#if EV_MINIMAL < 2 3395#if EV_FEATURE_API
2399 --loop_depth; 3396 --loop_depth;
2400#endif 3397#endif
3398
3399 return activecnt;
2401} 3400}
2402 3401
2403void 3402void
2404ev_unloop (EV_P_ int how) 3403ev_break (EV_P_ int how) EV_THROW
2405{ 3404{
2406 loop_done = how; 3405 loop_done = how;
2407} 3406}
2408 3407
2409void 3408void
2410ev_ref (EV_P) 3409ev_ref (EV_P) EV_THROW
2411{ 3410{
2412 ++activecnt; 3411 ++activecnt;
2413} 3412}
2414 3413
2415void 3414void
2416ev_unref (EV_P) 3415ev_unref (EV_P) EV_THROW
2417{ 3416{
2418 --activecnt; 3417 --activecnt;
2419} 3418}
2420 3419
2421void 3420void
2422ev_now_update (EV_P) 3421ev_now_update (EV_P) EV_THROW
2423{ 3422{
2424 time_update (EV_A_ 1e100); 3423 time_update (EV_A_ 1e100);
2425} 3424}
2426 3425
2427void 3426void
2428ev_suspend (EV_P) 3427ev_suspend (EV_P) EV_THROW
2429{ 3428{
2430 ev_now_update (EV_A); 3429 ev_now_update (EV_A);
2431} 3430}
2432 3431
2433void 3432void
2434ev_resume (EV_P) 3433ev_resume (EV_P) EV_THROW
2435{ 3434{
2436 ev_tstamp mn_prev = mn_now; 3435 ev_tstamp mn_prev = mn_now;
2437 3436
2438 ev_now_update (EV_A); 3437 ev_now_update (EV_A);
2439 timers_reschedule (EV_A_ mn_now - mn_prev); 3438 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2478 w->pending = 0; 3477 w->pending = 0;
2479 } 3478 }
2480} 3479}
2481 3480
2482int 3481int
2483ev_clear_pending (EV_P_ void *w) 3482ev_clear_pending (EV_P_ void *w) EV_THROW
2484{ 3483{
2485 W w_ = (W)w; 3484 W w_ = (W)w;
2486 int pending = w_->pending; 3485 int pending = w_->pending;
2487 3486
2488 if (expect_true (pending)) 3487 if (expect_true (pending))
… …
2521} 3520}
2522 3521
2523/*****************************************************************************/ 3522/*****************************************************************************/
2524 3523
2525void noinline 3524void noinline
2526ev_io_start (EV_P_ ev_io *w) 3525ev_io_start (EV_P_ ev_io *w) EV_THROW
2527{ 3526{
2528 int fd = w->fd; 3527 int fd = w->fd;
2529 3528
2530 if (expect_false (ev_is_active (w))) 3529 if (expect_false (ev_is_active (w)))
2531 return; 3530 return;
… …
2537 3536
2538 ev_start (EV_A_ (W)w, 1); 3537 ev_start (EV_A_ (W)w, 1);
2539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3538 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2540 wlist_add (&anfds[fd].head, (WL)w); 3539 wlist_add (&anfds[fd].head, (WL)w);
2541 3540
3541 /* common bug, apparently */
3542 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3543
2542 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3544 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2543 w->events &= ~EV__IOFDSET; 3545 w->events &= ~EV__IOFDSET;
2544 3546
2545 EV_FREQUENT_CHECK; 3547 EV_FREQUENT_CHECK;
2546} 3548}
2547 3549
2548void noinline 3550void noinline
2549ev_io_stop (EV_P_ ev_io *w) 3551ev_io_stop (EV_P_ ev_io *w) EV_THROW
2550{ 3552{
2551 clear_pending (EV_A_ (W)w); 3553 clear_pending (EV_A_ (W)w);
2552 if (expect_false (!ev_is_active (w))) 3554 if (expect_false (!ev_is_active (w)))
2553 return; 3555 return;
2554 3556
… …
2557 EV_FREQUENT_CHECK; 3559 EV_FREQUENT_CHECK;
2558 3560
2559 wlist_del (&anfds[w->fd].head, (WL)w); 3561 wlist_del (&anfds[w->fd].head, (WL)w);
2560 ev_stop (EV_A_ (W)w); 3562 ev_stop (EV_A_ (W)w);
2561 3563
2562 fd_change (EV_A_ w->fd, 1); 3564 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2563 3565
2564 EV_FREQUENT_CHECK; 3566 EV_FREQUENT_CHECK;
2565} 3567}
2566 3568
2567void noinline 3569void noinline
2568ev_timer_start (EV_P_ ev_timer *w) 3570ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2569{ 3571{
2570 if (expect_false (ev_is_active (w))) 3572 if (expect_false (ev_is_active (w)))
2571 return; 3573 return;
2572 3574
2573 ev_at (w) += mn_now; 3575 ev_at (w) += mn_now;
… …
2587 3589
2588 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3590 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2589} 3591}
2590 3592
2591void noinline 3593void noinline
2592ev_timer_stop (EV_P_ ev_timer *w) 3594ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2593{ 3595{
2594 clear_pending (EV_A_ (W)w); 3596 clear_pending (EV_A_ (W)w);
2595 if (expect_false (!ev_is_active (w))) 3597 if (expect_false (!ev_is_active (w)))
2596 return; 3598 return;
2597 3599
… …
2617 3619
2618 EV_FREQUENT_CHECK; 3620 EV_FREQUENT_CHECK;
2619} 3621}
2620 3622
2621void noinline 3623void noinline
2622ev_timer_again (EV_P_ ev_timer *w) 3624ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2623{ 3625{
2624 EV_FREQUENT_CHECK; 3626 EV_FREQUENT_CHECK;
3627
3628 clear_pending (EV_A_ (W)w);
2625 3629
2626 if (ev_is_active (w)) 3630 if (ev_is_active (w))
2627 { 3631 {
2628 if (w->repeat) 3632 if (w->repeat)
2629 { 3633 {
… …
2642 3646
2643 EV_FREQUENT_CHECK; 3647 EV_FREQUENT_CHECK;
2644} 3648}
2645 3649
2646ev_tstamp 3650ev_tstamp
2647ev_timer_remaining (EV_P_ ev_timer *w) 3651ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2648{ 3652{
2649 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3653 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2650} 3654}
2651 3655
2652#if EV_PERIODIC_ENABLE 3656#if EV_PERIODIC_ENABLE
2653void noinline 3657void noinline
2654ev_periodic_start (EV_P_ ev_periodic *w) 3658ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2655{ 3659{
2656 if (expect_false (ev_is_active (w))) 3660 if (expect_false (ev_is_active (w)))
2657 return; 3661 return;
2658 3662
2659 if (w->reschedule_cb) 3663 if (w->reschedule_cb)
2660 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3664 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2661 else if (w->interval) 3665 else if (w->interval)
2662 { 3666 {
2663 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3667 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2664 /* this formula differs from the one in periodic_reify because we do not always round up */ 3668 periodic_recalc (EV_A_ w);
2665 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2666 } 3669 }
2667 else 3670 else
2668 ev_at (w) = w->offset; 3671 ev_at (w) = w->offset;
2669 3672
2670 EV_FREQUENT_CHECK; 3673 EV_FREQUENT_CHECK;
… …
2680 3683
2681 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3684 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2682} 3685}
2683 3686
2684void noinline 3687void noinline
2685ev_periodic_stop (EV_P_ ev_periodic *w) 3688ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2686{ 3689{
2687 clear_pending (EV_A_ (W)w); 3690 clear_pending (EV_A_ (W)w);
2688 if (expect_false (!ev_is_active (w))) 3691 if (expect_false (!ev_is_active (w)))
2689 return; 3692 return;
2690 3693
… …
2708 3711
2709 EV_FREQUENT_CHECK; 3712 EV_FREQUENT_CHECK;
2710} 3713}
2711 3714
2712void noinline 3715void noinline
2713ev_periodic_again (EV_P_ ev_periodic *w) 3716ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2714{ 3717{
2715 /* TODO: use adjustheap and recalculation */ 3718 /* TODO: use adjustheap and recalculation */
2716 ev_periodic_stop (EV_A_ w); 3719 ev_periodic_stop (EV_A_ w);
2717 ev_periodic_start (EV_A_ w); 3720 ev_periodic_start (EV_A_ w);
2718} 3721}
… …
2720 3723
2721#ifndef SA_RESTART 3724#ifndef SA_RESTART
2722# define SA_RESTART 0 3725# define SA_RESTART 0
2723#endif 3726#endif
2724 3727
3728#if EV_SIGNAL_ENABLE
3729
2725void noinline 3730void noinline
2726ev_signal_start (EV_P_ ev_signal *w) 3731ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2727{ 3732{
2728 if (expect_false (ev_is_active (w))) 3733 if (expect_false (ev_is_active (w)))
2729 return; 3734 return;
2730 3735
2731 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3736 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2733#if EV_MULTIPLICITY 3738#if EV_MULTIPLICITY
2734 assert (("libev: a signal must not be attached to two different loops", 3739 assert (("libev: a signal must not be attached to two different loops",
2735 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3740 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2736 3741
2737 signals [w->signum - 1].loop = EV_A; 3742 signals [w->signum - 1].loop = EV_A;
3743 ECB_MEMORY_FENCE_RELEASE;
2738#endif 3744#endif
2739 3745
2740 EV_FREQUENT_CHECK; 3746 EV_FREQUENT_CHECK;
2741 3747
2742#if EV_USE_SIGNALFD 3748#if EV_USE_SIGNALFD
… …
2789 sa.sa_handler = ev_sighandler; 3795 sa.sa_handler = ev_sighandler;
2790 sigfillset (&sa.sa_mask); 3796 sigfillset (&sa.sa_mask);
2791 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3797 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2792 sigaction (w->signum, &sa, 0); 3798 sigaction (w->signum, &sa, 0);
2793 3799
3800 if (origflags & EVFLAG_NOSIGMASK)
3801 {
2794 sigemptyset (&sa.sa_mask); 3802 sigemptyset (&sa.sa_mask);
2795 sigaddset (&sa.sa_mask, w->signum); 3803 sigaddset (&sa.sa_mask, w->signum);
2796 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3804 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3805 }
2797#endif 3806#endif
2798 } 3807 }
2799 3808
2800 EV_FREQUENT_CHECK; 3809 EV_FREQUENT_CHECK;
2801} 3810}
2802 3811
2803void noinline 3812void noinline
2804ev_signal_stop (EV_P_ ev_signal *w) 3813ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2805{ 3814{
2806 clear_pending (EV_A_ (W)w); 3815 clear_pending (EV_A_ (W)w);
2807 if (expect_false (!ev_is_active (w))) 3816 if (expect_false (!ev_is_active (w)))
2808 return; 3817 return;
2809 3818
… …
2835 } 3844 }
2836 3845
2837 EV_FREQUENT_CHECK; 3846 EV_FREQUENT_CHECK;
2838} 3847}
2839 3848
3849#endif
3850
3851#if EV_CHILD_ENABLE
3852
2840void 3853void
2841ev_child_start (EV_P_ ev_child *w) 3854ev_child_start (EV_P_ ev_child *w) EV_THROW
2842{ 3855{
2843#if EV_MULTIPLICITY 3856#if EV_MULTIPLICITY
2844 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3857 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2845#endif 3858#endif
2846 if (expect_false (ev_is_active (w))) 3859 if (expect_false (ev_is_active (w)))
2847 return; 3860 return;
2848 3861
2849 EV_FREQUENT_CHECK; 3862 EV_FREQUENT_CHECK;
2850 3863
2851 ev_start (EV_A_ (W)w, 1); 3864 ev_start (EV_A_ (W)w, 1);
2852 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3865 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2853 3866
2854 EV_FREQUENT_CHECK; 3867 EV_FREQUENT_CHECK;
2855} 3868}
2856 3869
2857void 3870void
2858ev_child_stop (EV_P_ ev_child *w) 3871ev_child_stop (EV_P_ ev_child *w) EV_THROW
2859{ 3872{
2860 clear_pending (EV_A_ (W)w); 3873 clear_pending (EV_A_ (W)w);
2861 if (expect_false (!ev_is_active (w))) 3874 if (expect_false (!ev_is_active (w)))
2862 return; 3875 return;
2863 3876
2864 EV_FREQUENT_CHECK; 3877 EV_FREQUENT_CHECK;
2865 3878
2866 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3879 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2867 ev_stop (EV_A_ (W)w); 3880 ev_stop (EV_A_ (W)w);
2868 3881
2869 EV_FREQUENT_CHECK; 3882 EV_FREQUENT_CHECK;
2870} 3883}
3884
3885#endif
2871 3886
2872#if EV_STAT_ENABLE 3887#if EV_STAT_ENABLE
2873 3888
2874# ifdef _WIN32 3889# ifdef _WIN32
2875# undef lstat 3890# undef lstat
… …
2888# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3903# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2889 3904
2890static void noinline 3905static void noinline
2891infy_add (EV_P_ ev_stat *w) 3906infy_add (EV_P_ ev_stat *w)
2892{ 3907{
2893 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); 3908 w->wd = inotify_add_watch (fs_fd, w->path,
3909 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3910 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3911 | IN_DONT_FOLLOW | IN_MASK_ADD);
2894 3912
2895 if (w->wd >= 0) 3913 if (w->wd >= 0)
2896 { 3914 {
2897 struct statfs sfs; 3915 struct statfs sfs;
2898 3916
… …
2902 3920
2903 if (!fs_2625) 3921 if (!fs_2625)
2904 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3922 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2905 else if (!statfs (w->path, &sfs) 3923 else if (!statfs (w->path, &sfs)
2906 && (sfs.f_type == 0x1373 /* devfs */ 3924 && (sfs.f_type == 0x1373 /* devfs */
3925 || sfs.f_type == 0x4006 /* fat */
3926 || sfs.f_type == 0x4d44 /* msdos */
2907 || sfs.f_type == 0xEF53 /* ext2/3 */ 3927 || sfs.f_type == 0xEF53 /* ext2/3 */
3928 || sfs.f_type == 0x72b6 /* jffs2 */
3929 || sfs.f_type == 0x858458f6 /* ramfs */
3930 || sfs.f_type == 0x5346544e /* ntfs */
2908 || sfs.f_type == 0x3153464a /* jfs */ 3931 || sfs.f_type == 0x3153464a /* jfs */
3932 || sfs.f_type == 0x9123683e /* btrfs */
2909 || sfs.f_type == 0x52654973 /* reiser3 */ 3933 || sfs.f_type == 0x52654973 /* reiser3 */
2910 || sfs.f_type == 0x01021994 /* tempfs */ 3934 || sfs.f_type == 0x01021994 /* tmpfs */
2911 || sfs.f_type == 0x58465342 /* xfs */)) 3935 || sfs.f_type == 0x58465342 /* xfs */))
2912 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3936 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2913 else 3937 else
2914 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3938 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2915 } 3939 }
… …
2936 if (!pend || pend == path) 3960 if (!pend || pend == path)
2937 break; 3961 break;
2938 3962
2939 *pend = 0; 3963 *pend = 0;
2940 w->wd = inotify_add_watch (fs_fd, path, mask); 3964 w->wd = inotify_add_watch (fs_fd, path, mask);
2941 } 3965 }
2942 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3966 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2943 } 3967 }
2944 } 3968 }
2945 3969
2946 if (w->wd >= 0) 3970 if (w->wd >= 0)
2947 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3971 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2948 3972
2949 /* now re-arm timer, if required */ 3973 /* now re-arm timer, if required */
2950 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3974 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2951 ev_timer_again (EV_A_ &w->timer); 3975 ev_timer_again (EV_A_ &w->timer);
2952 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3976 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2960 3984
2961 if (wd < 0) 3985 if (wd < 0)
2962 return; 3986 return;
2963 3987
2964 w->wd = -2; 3988 w->wd = -2;
2965 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3989 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2966 wlist_del (&fs_hash [slot].head, (WL)w); 3990 wlist_del (&fs_hash [slot].head, (WL)w);
2967 3991
2968 /* remove this watcher, if others are watching it, they will rearm */ 3992 /* remove this watcher, if others are watching it, they will rearm */
2969 inotify_rm_watch (fs_fd, wd); 3993 inotify_rm_watch (fs_fd, wd);
2970} 3994}
… …
2972static void noinline 3996static void noinline
2973infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3997infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2974{ 3998{
2975 if (slot < 0) 3999 if (slot < 0)
2976 /* overflow, need to check for all hash slots */ 4000 /* overflow, need to check for all hash slots */
2977 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4001 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2978 infy_wd (EV_A_ slot, wd, ev); 4002 infy_wd (EV_A_ slot, wd, ev);
2979 else 4003 else
2980 { 4004 {
2981 WL w_; 4005 WL w_;
2982 4006
2983 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 4007 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2984 { 4008 {
2985 ev_stat *w = (ev_stat *)w_; 4009 ev_stat *w = (ev_stat *)w_;
2986 w_ = w_->next; /* lets us remove this watcher and all before it */ 4010 w_ = w_->next; /* lets us remove this watcher and all before it */
2987 4011
2988 if (w->wd == wd || wd == -1) 4012 if (w->wd == wd || wd == -1)
2989 { 4013 {
2990 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 4014 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2991 { 4015 {
2992 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4016 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2993 w->wd = -1; 4017 w->wd = -1;
2994 infy_add (EV_A_ w); /* re-add, no matter what */ 4018 infy_add (EV_A_ w); /* re-add, no matter what */
2995 } 4019 }
2996 4020
2997 stat_timer_cb (EV_A_ &w->timer, 0); 4021 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3013 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4037 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3014 ofs += sizeof (struct inotify_event) + ev->len; 4038 ofs += sizeof (struct inotify_event) + ev->len;
3015 } 4039 }
3016} 4040}
3017 4041
3018inline_size unsigned int
3019ev_linux_version (void)
3020{
3021 struct utsname buf;
3022 unsigned int v;
3023 int i;
3024 char *p = buf.release;
3025
3026 if (uname (&buf))
3027 return 0;
3028
3029 for (i = 3+1; --i; )
3030 {
3031 unsigned int c = 0;
3032
3033 for (;;)
3034 {
3035 if (*p >= '0' && *p <= '9')
3036 c = c * 10 + *p++ - '0';
3037 else
3038 {
3039 p += *p == '.';
3040 break;
3041 }
3042 }
3043
3044 v = (v << 8) | c;
3045 }
3046
3047 return v;
3048}
3049
3050inline_size void 4042inline_size void ecb_cold
3051ev_check_2625 (EV_P) 4043ev_check_2625 (EV_P)
3052{ 4044{
3053 /* kernels < 2.6.25 are borked 4045 /* kernels < 2.6.25 are borked
3054 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4046 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3055 */ 4047 */
… …
3060} 4052}
3061 4053
3062inline_size int 4054inline_size int
3063infy_newfd (void) 4055infy_newfd (void)
3064{ 4056{
3065#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4057#if defined IN_CLOEXEC && defined IN_NONBLOCK
3066 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4058 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3067 if (fd >= 0) 4059 if (fd >= 0)
3068 return fd; 4060 return fd;
3069#endif 4061#endif
3070 return inotify_init (); 4062 return inotify_init ();
… …
3111 ev_io_set (&fs_w, fs_fd, EV_READ); 4103 ev_io_set (&fs_w, fs_fd, EV_READ);
3112 ev_io_start (EV_A_ &fs_w); 4104 ev_io_start (EV_A_ &fs_w);
3113 ev_unref (EV_A); 4105 ev_unref (EV_A);
3114 } 4106 }
3115 4107
3116 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4108 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3117 { 4109 {
3118 WL w_ = fs_hash [slot].head; 4110 WL w_ = fs_hash [slot].head;
3119 fs_hash [slot].head = 0; 4111 fs_hash [slot].head = 0;
3120 4112
3121 while (w_) 4113 while (w_)
… …
3145#else 4137#else
3146# define EV_LSTAT(p,b) lstat (p, b) 4138# define EV_LSTAT(p,b) lstat (p, b)
3147#endif 4139#endif
3148 4140
3149void 4141void
3150ev_stat_stat (EV_P_ ev_stat *w) 4142ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3151{ 4143{
3152 if (lstat (w->path, &w->attr) < 0) 4144 if (lstat (w->path, &w->attr) < 0)
3153 w->attr.st_nlink = 0; 4145 w->attr.st_nlink = 0;
3154 else if (!w->attr.st_nlink) 4146 else if (!w->attr.st_nlink)
3155 w->attr.st_nlink = 1; 4147 w->attr.st_nlink = 1;
… …
3194 ev_feed_event (EV_A_ w, EV_STAT); 4186 ev_feed_event (EV_A_ w, EV_STAT);
3195 } 4187 }
3196} 4188}
3197 4189
3198void 4190void
3199ev_stat_start (EV_P_ ev_stat *w) 4191ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3200{ 4192{
3201 if (expect_false (ev_is_active (w))) 4193 if (expect_false (ev_is_active (w)))
3202 return; 4194 return;
3203 4195
3204 ev_stat_stat (EV_A_ w); 4196 ev_stat_stat (EV_A_ w);
… …
3225 4217
3226 EV_FREQUENT_CHECK; 4218 EV_FREQUENT_CHECK;
3227} 4219}
3228 4220
3229void 4221void
3230ev_stat_stop (EV_P_ ev_stat *w) 4222ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3231{ 4223{
3232 clear_pending (EV_A_ (W)w); 4224 clear_pending (EV_A_ (W)w);
3233 if (expect_false (!ev_is_active (w))) 4225 if (expect_false (!ev_is_active (w)))
3234 return; 4226 return;
3235 4227
… …
3251} 4243}
3252#endif 4244#endif
3253 4245
3254#if EV_IDLE_ENABLE 4246#if EV_IDLE_ENABLE
3255void 4247void
3256ev_idle_start (EV_P_ ev_idle *w) 4248ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3257{ 4249{
3258 if (expect_false (ev_is_active (w))) 4250 if (expect_false (ev_is_active (w)))
3259 return; 4251 return;
3260 4252
3261 pri_adjust (EV_A_ (W)w); 4253 pri_adjust (EV_A_ (W)w);
… …
3274 4266
3275 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3276} 4268}
3277 4269
3278void 4270void
3279ev_idle_stop (EV_P_ ev_idle *w) 4271ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3280{ 4272{
3281 clear_pending (EV_A_ (W)w); 4273 clear_pending (EV_A_ (W)w);
3282 if (expect_false (!ev_is_active (w))) 4274 if (expect_false (!ev_is_active (w)))
3283 return; 4275 return;
3284 4276
… …
3296 4288
3297 EV_FREQUENT_CHECK; 4289 EV_FREQUENT_CHECK;
3298} 4290}
3299#endif 4291#endif
3300 4292
4293#if EV_PREPARE_ENABLE
3301void 4294void
3302ev_prepare_start (EV_P_ ev_prepare *w) 4295ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3303{ 4296{
3304 if (expect_false (ev_is_active (w))) 4297 if (expect_false (ev_is_active (w)))
3305 return; 4298 return;
3306 4299
3307 EV_FREQUENT_CHECK; 4300 EV_FREQUENT_CHECK;
… …
3312 4305
3313 EV_FREQUENT_CHECK; 4306 EV_FREQUENT_CHECK;
3314} 4307}
3315 4308
3316void 4309void
3317ev_prepare_stop (EV_P_ ev_prepare *w) 4310ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3318{ 4311{
3319 clear_pending (EV_A_ (W)w); 4312 clear_pending (EV_A_ (W)w);
3320 if (expect_false (!ev_is_active (w))) 4313 if (expect_false (!ev_is_active (w)))
3321 return; 4314 return;
3322 4315
… …
3331 4324
3332 ev_stop (EV_A_ (W)w); 4325 ev_stop (EV_A_ (W)w);
3333 4326
3334 EV_FREQUENT_CHECK; 4327 EV_FREQUENT_CHECK;
3335} 4328}
4329#endif
3336 4330
4331#if EV_CHECK_ENABLE
3337void 4332void
3338ev_check_start (EV_P_ ev_check *w) 4333ev_check_start (EV_P_ ev_check *w) EV_THROW
3339{ 4334{
3340 if (expect_false (ev_is_active (w))) 4335 if (expect_false (ev_is_active (w)))
3341 return; 4336 return;
3342 4337
3343 EV_FREQUENT_CHECK; 4338 EV_FREQUENT_CHECK;
… …
3348 4343
3349 EV_FREQUENT_CHECK; 4344 EV_FREQUENT_CHECK;
3350} 4345}
3351 4346
3352void 4347void
3353ev_check_stop (EV_P_ ev_check *w) 4348ev_check_stop (EV_P_ ev_check *w) EV_THROW
3354{ 4349{
3355 clear_pending (EV_A_ (W)w); 4350 clear_pending (EV_A_ (W)w);
3356 if (expect_false (!ev_is_active (w))) 4351 if (expect_false (!ev_is_active (w)))
3357 return; 4352 return;
3358 4353
… …
3367 4362
3368 ev_stop (EV_A_ (W)w); 4363 ev_stop (EV_A_ (W)w);
3369 4364
3370 EV_FREQUENT_CHECK; 4365 EV_FREQUENT_CHECK;
3371} 4366}
4367#endif
3372 4368
3373#if EV_EMBED_ENABLE 4369#if EV_EMBED_ENABLE
3374void noinline 4370void noinline
3375ev_embed_sweep (EV_P_ ev_embed *w) 4371ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3376{ 4372{
3377 ev_loop (w->other, EVLOOP_NONBLOCK); 4373 ev_run (w->other, EVRUN_NOWAIT);
3378} 4374}
3379 4375
3380static void 4376static void
3381embed_io_cb (EV_P_ ev_io *io, int revents) 4377embed_io_cb (EV_P_ ev_io *io, int revents)
3382{ 4378{
3383 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4379 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3384 4380
3385 if (ev_cb (w)) 4381 if (ev_cb (w))
3386 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4382 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3387 else 4383 else
3388 ev_loop (w->other, EVLOOP_NONBLOCK); 4384 ev_run (w->other, EVRUN_NOWAIT);
3389} 4385}
3390 4386
3391static void 4387static void
3392embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4388embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3393{ 4389{
… …
3397 EV_P = w->other; 4393 EV_P = w->other;
3398 4394
3399 while (fdchangecnt) 4395 while (fdchangecnt)
3400 { 4396 {
3401 fd_reify (EV_A); 4397 fd_reify (EV_A);
3402 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4398 ev_run (EV_A_ EVRUN_NOWAIT);
3403 } 4399 }
3404 } 4400 }
3405} 4401}
3406 4402
3407static void 4403static void
… …
3413 4409
3414 { 4410 {
3415 EV_P = w->other; 4411 EV_P = w->other;
3416 4412
3417 ev_loop_fork (EV_A); 4413 ev_loop_fork (EV_A);
3418 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4414 ev_run (EV_A_ EVRUN_NOWAIT);
3419 } 4415 }
3420 4416
3421 ev_embed_start (EV_A_ w); 4417 ev_embed_start (EV_A_ w);
3422} 4418}
3423 4419
… …
3428 ev_idle_stop (EV_A_ idle); 4424 ev_idle_stop (EV_A_ idle);
3429} 4425}
3430#endif 4426#endif
3431 4427
3432void 4428void
3433ev_embed_start (EV_P_ ev_embed *w) 4429ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3434{ 4430{
3435 if (expect_false (ev_is_active (w))) 4431 if (expect_false (ev_is_active (w)))
3436 return; 4432 return;
3437 4433
3438 { 4434 {
… …
3459 4455
3460 EV_FREQUENT_CHECK; 4456 EV_FREQUENT_CHECK;
3461} 4457}
3462 4458
3463void 4459void
3464ev_embed_stop (EV_P_ ev_embed *w) 4460ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3465{ 4461{
3466 clear_pending (EV_A_ (W)w); 4462 clear_pending (EV_A_ (W)w);
3467 if (expect_false (!ev_is_active (w))) 4463 if (expect_false (!ev_is_active (w)))
3468 return; 4464 return;
3469 4465
… …
3479} 4475}
3480#endif 4476#endif
3481 4477
3482#if EV_FORK_ENABLE 4478#if EV_FORK_ENABLE
3483void 4479void
3484ev_fork_start (EV_P_ ev_fork *w) 4480ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3485{ 4481{
3486 if (expect_false (ev_is_active (w))) 4482 if (expect_false (ev_is_active (w)))
3487 return; 4483 return;
3488 4484
3489 EV_FREQUENT_CHECK; 4485 EV_FREQUENT_CHECK;
… …
3494 4490
3495 EV_FREQUENT_CHECK; 4491 EV_FREQUENT_CHECK;
3496} 4492}
3497 4493
3498void 4494void
3499ev_fork_stop (EV_P_ ev_fork *w) 4495ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3500{ 4496{
3501 clear_pending (EV_A_ (W)w); 4497 clear_pending (EV_A_ (W)w);
3502 if (expect_false (!ev_is_active (w))) 4498 if (expect_false (!ev_is_active (w)))
3503 return; 4499 return;
3504 4500
… …
3515 4511
3516 EV_FREQUENT_CHECK; 4512 EV_FREQUENT_CHECK;
3517} 4513}
3518#endif 4514#endif
3519 4515
4516#if EV_CLEANUP_ENABLE
4517void
4518ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4519{
4520 if (expect_false (ev_is_active (w)))
4521 return;
4522
4523 EV_FREQUENT_CHECK;
4524
4525 ev_start (EV_A_ (W)w, ++cleanupcnt);
4526 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4527 cleanups [cleanupcnt - 1] = w;
4528
4529 /* cleanup watchers should never keep a refcount on the loop */
4530 ev_unref (EV_A);
4531 EV_FREQUENT_CHECK;
4532}
4533
4534void
4535ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4536{
4537 clear_pending (EV_A_ (W)w);
4538 if (expect_false (!ev_is_active (w)))
4539 return;
4540
4541 EV_FREQUENT_CHECK;
4542 ev_ref (EV_A);
4543
4544 {
4545 int active = ev_active (w);
4546
4547 cleanups [active - 1] = cleanups [--cleanupcnt];
4548 ev_active (cleanups [active - 1]) = active;
4549 }
4550
4551 ev_stop (EV_A_ (W)w);
4552
4553 EV_FREQUENT_CHECK;
4554}
4555#endif
4556
3520#if EV_ASYNC_ENABLE 4557#if EV_ASYNC_ENABLE
3521void 4558void
3522ev_async_start (EV_P_ ev_async *w) 4559ev_async_start (EV_P_ ev_async *w) EV_THROW
3523{ 4560{
3524 if (expect_false (ev_is_active (w))) 4561 if (expect_false (ev_is_active (w)))
3525 return; 4562 return;
4563
4564 w->sent = 0;
3526 4565
3527 evpipe_init (EV_A); 4566 evpipe_init (EV_A);
3528 4567
3529 EV_FREQUENT_CHECK; 4568 EV_FREQUENT_CHECK;
3530 4569
… …
3534 4573
3535 EV_FREQUENT_CHECK; 4574 EV_FREQUENT_CHECK;
3536} 4575}
3537 4576
3538void 4577void
3539ev_async_stop (EV_P_ ev_async *w) 4578ev_async_stop (EV_P_ ev_async *w) EV_THROW
3540{ 4579{
3541 clear_pending (EV_A_ (W)w); 4580 clear_pending (EV_A_ (W)w);
3542 if (expect_false (!ev_is_active (w))) 4581 if (expect_false (!ev_is_active (w)))
3543 return; 4582 return;
3544 4583
… …
3555 4594
3556 EV_FREQUENT_CHECK; 4595 EV_FREQUENT_CHECK;
3557} 4596}
3558 4597
3559void 4598void
3560ev_async_send (EV_P_ ev_async *w) 4599ev_async_send (EV_P_ ev_async *w) EV_THROW
3561{ 4600{
3562 w->sent = 1; 4601 w->sent = 1;
3563 evpipe_write (EV_A_ &async_pending); 4602 evpipe_write (EV_A_ &async_pending);
3564} 4603}
3565#endif 4604#endif
… …
3602 4641
3603 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4642 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3604} 4643}
3605 4644
3606void 4645void
3607ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4646ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3608{ 4647{
3609 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4648 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3610 4649
3611 if (expect_false (!once)) 4650 if (expect_false (!once))
3612 { 4651 {
3613 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4652 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3614 return; 4653 return;
3615 } 4654 }
3616 4655
3617 once->cb = cb; 4656 once->cb = cb;
3618 once->arg = arg; 4657 once->arg = arg;
… …
3633} 4672}
3634 4673
3635/*****************************************************************************/ 4674/*****************************************************************************/
3636 4675
3637#if EV_WALK_ENABLE 4676#if EV_WALK_ENABLE
3638void 4677void ecb_cold
3639ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4678ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3640{ 4679{
3641 int i, j; 4680 int i, j;
3642 ev_watcher_list *wl, *wn; 4681 ev_watcher_list *wl, *wn;
3643 4682
3644 if (types & (EV_IO | EV_EMBED)) 4683 if (types & (EV_IO | EV_EMBED))
… …
3687 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4726 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3688#endif 4727#endif
3689 4728
3690#if EV_IDLE_ENABLE 4729#if EV_IDLE_ENABLE
3691 if (types & EV_IDLE) 4730 if (types & EV_IDLE)
3692 for (j = NUMPRI; i--; ) 4731 for (j = NUMPRI; j--; )
3693 for (i = idlecnt [j]; i--; ) 4732 for (i = idlecnt [j]; i--; )
3694 cb (EV_A_ EV_IDLE, idles [j][i]); 4733 cb (EV_A_ EV_IDLE, idles [j][i]);
3695#endif 4734#endif
3696 4735
3697#if EV_FORK_ENABLE 4736#if EV_FORK_ENABLE
… …
3705 if (types & EV_ASYNC) 4744 if (types & EV_ASYNC)
3706 for (i = asynccnt; i--; ) 4745 for (i = asynccnt; i--; )
3707 cb (EV_A_ EV_ASYNC, asyncs [i]); 4746 cb (EV_A_ EV_ASYNC, asyncs [i]);
3708#endif 4747#endif
3709 4748
4749#if EV_PREPARE_ENABLE
3710 if (types & EV_PREPARE) 4750 if (types & EV_PREPARE)
3711 for (i = preparecnt; i--; ) 4751 for (i = preparecnt; i--; )
3712#if EV_EMBED_ENABLE 4752# if EV_EMBED_ENABLE
3713 if (ev_cb (prepares [i]) != embed_prepare_cb) 4753 if (ev_cb (prepares [i]) != embed_prepare_cb)
3714#endif 4754# endif
3715 cb (EV_A_ EV_PREPARE, prepares [i]); 4755 cb (EV_A_ EV_PREPARE, prepares [i]);
4756#endif
3716 4757
4758#if EV_CHECK_ENABLE
3717 if (types & EV_CHECK) 4759 if (types & EV_CHECK)
3718 for (i = checkcnt; i--; ) 4760 for (i = checkcnt; i--; )
3719 cb (EV_A_ EV_CHECK, checks [i]); 4761 cb (EV_A_ EV_CHECK, checks [i]);
4762#endif
3720 4763
4764#if EV_SIGNAL_ENABLE
3721 if (types & EV_SIGNAL) 4765 if (types & EV_SIGNAL)
3722 for (i = 0; i < EV_NSIG - 1; ++i) 4766 for (i = 0; i < EV_NSIG - 1; ++i)
3723 for (wl = signals [i].head; wl; ) 4767 for (wl = signals [i].head; wl; )
3724 { 4768 {
3725 wn = wl->next; 4769 wn = wl->next;
3726 cb (EV_A_ EV_SIGNAL, wl); 4770 cb (EV_A_ EV_SIGNAL, wl);
3727 wl = wn; 4771 wl = wn;
3728 } 4772 }
4773#endif
3729 4774
4775#if EV_CHILD_ENABLE
3730 if (types & EV_CHILD) 4776 if (types & EV_CHILD)
3731 for (i = EV_PID_HASHSIZE; i--; ) 4777 for (i = (EV_PID_HASHSIZE); i--; )
3732 for (wl = childs [i]; wl; ) 4778 for (wl = childs [i]; wl; )
3733 { 4779 {
3734 wn = wl->next; 4780 wn = wl->next;
3735 cb (EV_A_ EV_CHILD, wl); 4781 cb (EV_A_ EV_CHILD, wl);
3736 wl = wn; 4782 wl = wn;
3737 } 4783 }
4784#endif
3738/* EV_STAT 0x00001000 /* stat data changed */ 4785/* EV_STAT 0x00001000 /* stat data changed */
3739/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4786/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3740} 4787}
3741#endif 4788#endif
3742 4789
3743#if EV_MULTIPLICITY 4790#if EV_MULTIPLICITY
3744 #include "ev_wrap.h" 4791 #include "ev_wrap.h"
3745#endif 4792#endif
3746 4793
3747#ifdef __cplusplus
3748}
3749#endif
3750

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