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Comparing libev/ev.c (file contents):
Revision 1.333 by root, Tue Mar 9 08:58:22 2010 UTC vs.
Revision 1.457 by root, Thu Sep 5 18:45:29 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 0x00010003
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/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64
556 #if __ILP32
557 #define ECB_AMD64_X32 1
558 #else
559 #define ECB_AMD64 1
474#endif 560 #endif
561#endif
475 562
563/* many compilers define _GNUC_ to some versions but then only implement
564 * what their idiot authors think are the "more important" extensions,
565 * causing enormous grief in return for some better fake benchmark numbers.
566 * or so.
567 * we try to detect these and simply assume they are not gcc - if they have
568 * an issue with that they should have done it right in the first place.
569 */
570#ifndef ECB_GCC_VERSION
571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
572 #define ECB_GCC_VERSION(major,minor) 0
573 #else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif
576#endif
577
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
579#define ECB_C99 (__STDC_VERSION__ >= 199901L)
580#define ECB_C11 (__STDC_VERSION__ >= 201112L)
581#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L)
583
584#if ECB_CPP
585 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END }
588#else
589 #define ECB_EXTERN_C extern
590 #define ECB_EXTERN_C_BEG
591 #define ECB_EXTERN_C_END
592#endif
593
594/*****************************************************************************/
595
596/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
597/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
598
599#if ECB_NO_THREADS
600 #define ECB_NO_SMP 1
601#endif
602
603#if ECB_NO_SMP
604 #define ECB_MEMORY_FENCE do { } while (0)
605#endif
606
607#ifndef ECB_MEMORY_FENCE
608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
609 #if __i386 || __i386__
610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
631 #elif defined __mips__
632 /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */
633 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
635 #elif defined __alpha__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
637 #elif defined __hppa__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
639 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
640 #elif defined __ia64__
641 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
642 #elif defined __m68k__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
644 #elif defined __m88k__
645 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
646 #elif defined __sh__
647 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
648 #endif
649 #endif
650#endif
651
652#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(4,7)
654 /* see comment below (stdatomic.h) about the C11 memory model. */
655 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
656
657 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
658 * without risking compile time errors with other compilers. We *could*
659 * define our own ecb_clang_has_feature, but I just can't be bothered to work
660 * around this shit time and again.
661 * #elif defined __clang && __has_feature (cxx_atomic)
662 * // see comment below (stdatomic.h) about the C11 memory model.
663 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
664 */
665
666 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
667 #define ECB_MEMORY_FENCE __sync_synchronize ()
668 #elif _MSC_VER >= 1400 /* VC++ 2005 */
669 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
670 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
671 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
672 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
673 #elif defined _WIN32
674 #include <WinNT.h>
675 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
676 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
677 #include <mbarrier.h>
678 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
679 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
680 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
681 #elif __xlC__
682 #define ECB_MEMORY_FENCE __sync ()
683 #endif
684#endif
685
686#ifndef ECB_MEMORY_FENCE
687 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
688 /* we assume that these memory fences work on all variables/all memory accesses, */
689 /* not just C11 atomics and atomic accesses */
690 #include <stdatomic.h>
691 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
692 /* any fence other than seq_cst, which isn't very efficient for us. */
693 /* Why that is, we don't know - either the C11 memory model is quite useless */
694 /* for most usages, or gcc and clang have a bug */
695 /* I *currently* lean towards the latter, and inefficiently implement */
696 /* all three of ecb's fences as a seq_cst fence */
697 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
698 #endif
699#endif
700
701#ifndef ECB_MEMORY_FENCE
702 #if !ECB_AVOID_PTHREADS
703 /*
704 * if you get undefined symbol references to pthread_mutex_lock,
705 * or failure to find pthread.h, then you should implement
706 * the ECB_MEMORY_FENCE operations for your cpu/compiler
707 * OR provide pthread.h and link against the posix thread library
708 * of your system.
709 */
710 #include <pthread.h>
711 #define ECB_NEEDS_PTHREADS 1
712 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
713
714 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
715 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
716 #endif
717#endif
718
719#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
720 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
721#endif
722
723#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
724 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
725#endif
726
727/*****************************************************************************/
728
729#if __cplusplus
730 #define ecb_inline static inline
731#elif ECB_GCC_VERSION(2,5)
732 #define ecb_inline static __inline__
733#elif ECB_C99
734 #define ecb_inline static inline
735#else
736 #define ecb_inline static
737#endif
738
739#if ECB_GCC_VERSION(3,3)
740 #define ecb_restrict __restrict__
741#elif ECB_C99
742 #define ecb_restrict restrict
743#else
744 #define ecb_restrict
745#endif
746
747typedef int ecb_bool;
748
749#define ECB_CONCAT_(a, b) a ## b
750#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
751#define ECB_STRINGIFY_(a) # a
752#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
753
754#define ecb_function_ ecb_inline
755
756#if ECB_GCC_VERSION(3,1)
757 #define ecb_attribute(attrlist) __attribute__(attrlist)
758 #define ecb_is_constant(expr) __builtin_constant_p (expr)
759 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
760 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
761#else
762 #define ecb_attribute(attrlist)
763 #define ecb_is_constant(expr) 0
764 #define ecb_expect(expr,value) (expr)
765 #define ecb_prefetch(addr,rw,locality)
766#endif
767
768/* no emulation for ecb_decltype */
769#if ECB_GCC_VERSION(4,5)
770 #define ecb_decltype(x) __decltype(x)
771#elif ECB_GCC_VERSION(3,0)
772 #define ecb_decltype(x) __typeof(x)
773#endif
774
775#define ecb_noinline ecb_attribute ((__noinline__))
776#define ecb_unused ecb_attribute ((__unused__))
777#define ecb_const ecb_attribute ((__const__))
778#define ecb_pure ecb_attribute ((__pure__))
779
780#if ECB_C11
781 #define ecb_noreturn _Noreturn
782#else
783 #define ecb_noreturn ecb_attribute ((__noreturn__))
784#endif
785
786#if ECB_GCC_VERSION(4,3)
787 #define ecb_artificial ecb_attribute ((__artificial__))
788 #define ecb_hot ecb_attribute ((__hot__))
789 #define ecb_cold ecb_attribute ((__cold__))
790#else
791 #define ecb_artificial
792 #define ecb_hot
793 #define ecb_cold
794#endif
795
796/* put around conditional expressions if you are very sure that the */
797/* expression is mostly true or mostly false. note that these return */
798/* booleans, not the expression. */
476#define expect_false(expr) expect ((expr) != 0, 0) 799#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 800#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
801/* for compatibility to the rest of the world */
802#define ecb_likely(expr) ecb_expect_true (expr)
803#define ecb_unlikely(expr) ecb_expect_false (expr)
804
805/* count trailing zero bits and count # of one bits */
806#if ECB_GCC_VERSION(3,4)
807 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
808 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
809 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
810 #define ecb_ctz32(x) __builtin_ctz (x)
811 #define ecb_ctz64(x) __builtin_ctzll (x)
812 #define ecb_popcount32(x) __builtin_popcount (x)
813 /* no popcountll */
814#else
815 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
816 ecb_function_ int
817 ecb_ctz32 (uint32_t x)
818 {
819 int r = 0;
820
821 x &= ~x + 1; /* this isolates the lowest bit */
822
823#if ECB_branchless_on_i386
824 r += !!(x & 0xaaaaaaaa) << 0;
825 r += !!(x & 0xcccccccc) << 1;
826 r += !!(x & 0xf0f0f0f0) << 2;
827 r += !!(x & 0xff00ff00) << 3;
828 r += !!(x & 0xffff0000) << 4;
829#else
830 if (x & 0xaaaaaaaa) r += 1;
831 if (x & 0xcccccccc) r += 2;
832 if (x & 0xf0f0f0f0) r += 4;
833 if (x & 0xff00ff00) r += 8;
834 if (x & 0xffff0000) r += 16;
835#endif
836
837 return r;
838 }
839
840 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
841 ecb_function_ int
842 ecb_ctz64 (uint64_t x)
843 {
844 int shift = x & 0xffffffffU ? 0 : 32;
845 return ecb_ctz32 (x >> shift) + shift;
846 }
847
848 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
849 ecb_function_ int
850 ecb_popcount32 (uint32_t x)
851 {
852 x -= (x >> 1) & 0x55555555;
853 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
854 x = ((x >> 4) + x) & 0x0f0f0f0f;
855 x *= 0x01010101;
856
857 return x >> 24;
858 }
859
860 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
861 ecb_function_ int ecb_ld32 (uint32_t x)
862 {
863 int r = 0;
864
865 if (x >> 16) { x >>= 16; r += 16; }
866 if (x >> 8) { x >>= 8; r += 8; }
867 if (x >> 4) { x >>= 4; r += 4; }
868 if (x >> 2) { x >>= 2; r += 2; }
869 if (x >> 1) { r += 1; }
870
871 return r;
872 }
873
874 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
875 ecb_function_ int ecb_ld64 (uint64_t x)
876 {
877 int r = 0;
878
879 if (x >> 32) { x >>= 32; r += 32; }
880
881 return r + ecb_ld32 (x);
882 }
883#endif
884
885ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
886ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
887ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
888ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
889
890ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
891ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
892{
893 return ( (x * 0x0802U & 0x22110U)
894 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
895}
896
897ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
898ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
899{
900 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
901 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
902 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
903 x = ( x >> 8 ) | ( x << 8);
904
905 return x;
906}
907
908ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
909ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
910{
911 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
912 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
913 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
914 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
915 x = ( x >> 16 ) | ( x << 16);
916
917 return x;
918}
919
920/* popcount64 is only available on 64 bit cpus as gcc builtin */
921/* so for this version we are lazy */
922ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
923ecb_function_ int
924ecb_popcount64 (uint64_t x)
925{
926 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
927}
928
929ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
930ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
931ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
932ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
933ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
934ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
935ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
936ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
937
938ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
939ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
940ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
941ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
942ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
943ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
944ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
945ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
946
947#if ECB_GCC_VERSION(4,3)
948 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
949 #define ecb_bswap32(x) __builtin_bswap32 (x)
950 #define ecb_bswap64(x) __builtin_bswap64 (x)
951#else
952 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
953 ecb_function_ uint16_t
954 ecb_bswap16 (uint16_t x)
955 {
956 return ecb_rotl16 (x, 8);
957 }
958
959 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
960 ecb_function_ uint32_t
961 ecb_bswap32 (uint32_t x)
962 {
963 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
964 }
965
966 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
967 ecb_function_ uint64_t
968 ecb_bswap64 (uint64_t x)
969 {
970 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
971 }
972#endif
973
974#if ECB_GCC_VERSION(4,5)
975 #define ecb_unreachable() __builtin_unreachable ()
976#else
977 /* this seems to work fine, but gcc always emits a warning for it :/ */
978 ecb_inline void ecb_unreachable (void) ecb_noreturn;
979 ecb_inline void ecb_unreachable (void) { }
980#endif
981
982/* try to tell the compiler that some condition is definitely true */
983#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
984
985ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
986ecb_inline unsigned char
987ecb_byteorder_helper (void)
988{
989 /* the union code still generates code under pressure in gcc, */
990 /* but less than using pointers, and always seems to */
991 /* successfully return a constant. */
992 /* the reason why we have this horrible preprocessor mess */
993 /* is to avoid it in all cases, at least on common architectures */
994 /* or when using a recent enough gcc version (>= 4.6) */
995#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
996 return 0x44;
997#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
998 return 0x44;
999#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1000 return 0x11;
1001#else
1002 union
1003 {
1004 uint32_t i;
1005 uint8_t c;
1006 } u = { 0x11223344 };
1007 return u.c;
1008#endif
1009}
1010
1011ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
1012ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1013ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
1014ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1015
1016#if ECB_GCC_VERSION(3,0) || ECB_C99
1017 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1018#else
1019 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1020#endif
1021
1022#if __cplusplus
1023 template<typename T>
1024 static inline T ecb_div_rd (T val, T div)
1025 {
1026 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1027 }
1028 template<typename T>
1029 static inline T ecb_div_ru (T val, T div)
1030 {
1031 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1032 }
1033#else
1034 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1035 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1036#endif
1037
1038#if ecb_cplusplus_does_not_suck
1039 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1040 template<typename T, int N>
1041 static inline int ecb_array_length (const T (&arr)[N])
1042 {
1043 return N;
1044 }
1045#else
1046 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1047#endif
1048
1049/*******************************************************************************/
1050/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1051
1052/* basically, everything uses "ieee pure-endian" floating point numbers */
1053/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1054#if 0 \
1055 || __i386 || __i386__ \
1056 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1057 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1058 || defined __arm__ && defined __ARM_EABI__ \
1059 || defined __s390__ || defined __s390x__ \
1060 || defined __mips__ \
1061 || defined __alpha__ \
1062 || defined __hppa__ \
1063 || defined __ia64__ \
1064 || defined __m68k__ \
1065 || defined __m88k__ \
1066 || defined __sh__ \
1067 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1068 #define ECB_STDFP 1
1069 #include <string.h> /* for memcpy */
1070#else
1071 #define ECB_STDFP 0
1072 #include <math.h> /* for frexp*, ldexp* */
1073#endif
1074
1075#ifndef ECB_NO_LIBM
1076
1077 /* convert a float to ieee single/binary32 */
1078 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1079 ecb_function_ uint32_t
1080 ecb_float_to_binary32 (float x)
1081 {
1082 uint32_t r;
1083
1084 #if ECB_STDFP
1085 memcpy (&r, &x, 4);
1086 #else
1087 /* slow emulation, works for anything but -0 */
1088 uint32_t m;
1089 int e;
1090
1091 if (x == 0e0f ) return 0x00000000U;
1092 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1093 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1094 if (x != x ) return 0x7fbfffffU;
1095
1096 m = frexpf (x, &e) * 0x1000000U;
1097
1098 r = m & 0x80000000U;
1099
1100 if (r)
1101 m = -m;
1102
1103 if (e <= -126)
1104 {
1105 m &= 0xffffffU;
1106 m >>= (-125 - e);
1107 e = -126;
1108 }
1109
1110 r |= (e + 126) << 23;
1111 r |= m & 0x7fffffU;
1112 #endif
1113
1114 return r;
1115 }
1116
1117 /* converts an ieee single/binary32 to a float */
1118 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1119 ecb_function_ float
1120 ecb_binary32_to_float (uint32_t x)
1121 {
1122 float r;
1123
1124 #if ECB_STDFP
1125 memcpy (&r, &x, 4);
1126 #else
1127 /* emulation, only works for normals and subnormals and +0 */
1128 int neg = x >> 31;
1129 int e = (x >> 23) & 0xffU;
1130
1131 x &= 0x7fffffU;
1132
1133 if (e)
1134 x |= 0x800000U;
1135 else
1136 e = 1;
1137
1138 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1139 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1140
1141 r = neg ? -r : r;
1142 #endif
1143
1144 return r;
1145 }
1146
1147 /* convert a double to ieee double/binary64 */
1148 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1149 ecb_function_ uint64_t
1150 ecb_double_to_binary64 (double x)
1151 {
1152 uint64_t r;
1153
1154 #if ECB_STDFP
1155 memcpy (&r, &x, 8);
1156 #else
1157 /* slow emulation, works for anything but -0 */
1158 uint64_t m;
1159 int e;
1160
1161 if (x == 0e0 ) return 0x0000000000000000U;
1162 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1163 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1164 if (x != x ) return 0X7ff7ffffffffffffU;
1165
1166 m = frexp (x, &e) * 0x20000000000000U;
1167
1168 r = m & 0x8000000000000000;;
1169
1170 if (r)
1171 m = -m;
1172
1173 if (e <= -1022)
1174 {
1175 m &= 0x1fffffffffffffU;
1176 m >>= (-1021 - e);
1177 e = -1022;
1178 }
1179
1180 r |= ((uint64_t)(e + 1022)) << 52;
1181 r |= m & 0xfffffffffffffU;
1182 #endif
1183
1184 return r;
1185 }
1186
1187 /* converts an ieee double/binary64 to a double */
1188 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1189 ecb_function_ double
1190 ecb_binary64_to_double (uint64_t x)
1191 {
1192 double r;
1193
1194 #if ECB_STDFP
1195 memcpy (&r, &x, 8);
1196 #else
1197 /* emulation, only works for normals and subnormals and +0 */
1198 int neg = x >> 63;
1199 int e = (x >> 52) & 0x7ffU;
1200
1201 x &= 0xfffffffffffffU;
1202
1203 if (e)
1204 x |= 0x10000000000000U;
1205 else
1206 e = 1;
1207
1208 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1209 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1210
1211 r = neg ? -r : r;
1212 #endif
1213
1214 return r;
1215 }
1216
1217#endif
1218
1219#endif
1220
1221/* ECB.H END */
1222
1223#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1224/* if your architecture doesn't need memory fences, e.g. because it is
1225 * single-cpu/core, or if you use libev in a project that doesn't use libev
1226 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1227 * libev, in which cases the memory fences become nops.
1228 * alternatively, you can remove this #error and link against libpthread,
1229 * which will then provide the memory fences.
1230 */
1231# error "memory fences not defined for your architecture, please report"
1232#endif
1233
1234#ifndef ECB_MEMORY_FENCE
1235# define ECB_MEMORY_FENCE do { } while (0)
1236# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1237# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1238#endif
1239
1240#define expect_false(cond) ecb_expect_false (cond)
1241#define expect_true(cond) ecb_expect_true (cond)
1242#define noinline ecb_noinline
1243
478#define inline_size static inline 1244#define inline_size ecb_inline
479 1245
480#if EV_MINIMAL 1246#if EV_FEATURE_CODE
1247# define inline_speed ecb_inline
1248#else
481# define inline_speed static noinline 1249# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 1250#endif
485 1251
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1252#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 1253
488#if EV_MINPRI == EV_MAXPRI 1254#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 1267#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 1268#define ev_at(w) ((WT)(w))->at
503 1269
504#if EV_USE_REALTIME 1270#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1271/* 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 */ 1272/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1273static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 1274#endif
509 1275
510#if EV_USE_MONOTONIC 1276#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1277static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 1291# include "ev_win32.c"
526#endif 1292#endif
527 1293
528/*****************************************************************************/ 1294/*****************************************************************************/
529 1295
1296/* define a suitable floor function (only used by periodics atm) */
1297
1298#if EV_USE_FLOOR
1299# include <math.h>
1300# define ev_floor(v) floor (v)
1301#else
1302
1303#include <float.h>
1304
1305/* a floor() replacement function, should be independent of ev_tstamp type */
1306static ev_tstamp noinline
1307ev_floor (ev_tstamp v)
1308{
1309 /* the choice of shift factor is not terribly important */
1310#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1311 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1312#else
1313 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1314#endif
1315
1316 /* argument too large for an unsigned long? */
1317 if (expect_false (v >= shift))
1318 {
1319 ev_tstamp f;
1320
1321 if (v == v - 1.)
1322 return v; /* very large number */
1323
1324 f = shift * ev_floor (v * (1. / shift));
1325 return f + ev_floor (v - f);
1326 }
1327
1328 /* special treatment for negative args? */
1329 if (expect_false (v < 0.))
1330 {
1331 ev_tstamp f = -ev_floor (-v);
1332
1333 return f - (f == v ? 0 : 1);
1334 }
1335
1336 /* fits into an unsigned long */
1337 return (unsigned long)v;
1338}
1339
1340#endif
1341
1342/*****************************************************************************/
1343
1344#ifdef __linux
1345# include <sys/utsname.h>
1346#endif
1347
1348static unsigned int noinline ecb_cold
1349ev_linux_version (void)
1350{
1351#ifdef __linux
1352 unsigned int v = 0;
1353 struct utsname buf;
1354 int i;
1355 char *p = buf.release;
1356
1357 if (uname (&buf))
1358 return 0;
1359
1360 for (i = 3+1; --i; )
1361 {
1362 unsigned int c = 0;
1363
1364 for (;;)
1365 {
1366 if (*p >= '0' && *p <= '9')
1367 c = c * 10 + *p++ - '0';
1368 else
1369 {
1370 p += *p == '.';
1371 break;
1372 }
1373 }
1374
1375 v = (v << 8) | c;
1376 }
1377
1378 return v;
1379#else
1380 return 0;
1381#endif
1382}
1383
1384/*****************************************************************************/
1385
530#if EV_AVOID_STDIO 1386#if EV_AVOID_STDIO
531static void noinline 1387static void noinline ecb_cold
532ev_printerr (const char *msg) 1388ev_printerr (const char *msg)
533{ 1389{
534 write (STDERR_FILENO, msg, strlen (msg)); 1390 write (STDERR_FILENO, msg, strlen (msg));
535} 1391}
536#endif 1392#endif
537 1393
538static void (*syserr_cb)(const char *msg); 1394static void (*syserr_cb)(const char *msg) EV_THROW;
539 1395
540void 1396void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 1397ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
542{ 1398{
543 syserr_cb = cb; 1399 syserr_cb = cb;
544} 1400}
545 1401
546static void noinline 1402static void noinline ecb_cold
547ev_syserr (const char *msg) 1403ev_syserr (const char *msg)
548{ 1404{
549 if (!msg) 1405 if (!msg)
550 msg = "(libev) system error"; 1406 msg = "(libev) system error";
551 1407
552 if (syserr_cb) 1408 if (syserr_cb)
553 syserr_cb (msg); 1409 syserr_cb (msg);
554 else 1410 else
555 { 1411 {
556#if EV_AVOID_STDIO 1412#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 1413 ev_printerr (msg);
560 ev_printerr (": "); 1414 ev_printerr (": ");
561 ev_printerr (err); 1415 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 1416 ev_printerr ("\n");
563#else 1417#else
564 perror (msg); 1418 perror (msg);
565#endif 1419#endif
566 abort (); 1420 abort ();
567 } 1421 }
568} 1422}
569 1423
570static void * 1424static void *
571ev_realloc_emul (void *ptr, long size) 1425ev_realloc_emul (void *ptr, long size) EV_THROW
572{ 1426{
573 /* some systems, notably openbsd and darwin, fail to properly 1427 /* some systems, notably openbsd and darwin, fail to properly
574 * implement realloc (x, 0) (as required by both ansi c-98 and 1428 * implement realloc (x, 0) (as required by both ansi c-89 and
575 * the single unix specification, so work around them here. 1429 * the single unix specification, so work around them here.
1430 * recently, also (at least) fedora and debian started breaking it,
1431 * despite documenting it otherwise.
576 */ 1432 */
577 1433
578 if (size) 1434 if (size)
579 return realloc (ptr, size); 1435 return realloc (ptr, size);
580 1436
581 free (ptr); 1437 free (ptr);
582 return 0; 1438 return 0;
583} 1439}
584 1440
585static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1441static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
586 1442
587void 1443void ecb_cold
588ev_set_allocator (void *(*cb)(void *ptr, long size)) 1444ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
589{ 1445{
590 alloc = cb; 1446 alloc = cb;
591} 1447}
592 1448
593inline_speed void * 1449inline_speed void *
… …
596 ptr = alloc (ptr, size); 1452 ptr = alloc (ptr, size);
597 1453
598 if (!ptr && size) 1454 if (!ptr && size)
599 { 1455 {
600#if EV_AVOID_STDIO 1456#if EV_AVOID_STDIO
601 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1457 ev_printerr ("(libev) memory allocation failed, aborting.\n");
602#else 1458#else
603 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1459 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
604#endif 1460#endif
605 abort (); 1461 abort ();
606 } 1462 }
607 1463
608 return ptr; 1464 return ptr;
… …
625 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1481 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
626 unsigned char unused; 1482 unsigned char unused;
627#if EV_USE_EPOLL 1483#if EV_USE_EPOLL
628 unsigned int egen; /* generation counter to counter epoll bugs */ 1484 unsigned int egen; /* generation counter to counter epoll bugs */
629#endif 1485#endif
630#if EV_SELECT_IS_WINSOCKET 1486#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
631 SOCKET handle; 1487 SOCKET handle;
1488#endif
1489#if EV_USE_IOCP
1490 OVERLAPPED or, ow;
632#endif 1491#endif
633} ANFD; 1492} ANFD;
634 1493
635/* stores the pending event set for a given watcher */ 1494/* stores the pending event set for a given watcher */
636typedef struct 1495typedef struct
… …
678 #undef VAR 1537 #undef VAR
679 }; 1538 };
680 #include "ev_wrap.h" 1539 #include "ev_wrap.h"
681 1540
682 static struct ev_loop default_loop_struct; 1541 static struct ev_loop default_loop_struct;
683 struct ev_loop *ev_default_loop_ptr; 1542 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
684 1543
685#else 1544#else
686 1545
687 ev_tstamp ev_rt_now; 1546 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
688 #define VAR(name,decl) static decl; 1547 #define VAR(name,decl) static decl;
689 #include "ev_vars.h" 1548 #include "ev_vars.h"
690 #undef VAR 1549 #undef VAR
691 1550
692 static int ev_default_loop_ptr; 1551 static int ev_default_loop_ptr;
693 1552
694#endif 1553#endif
695 1554
696#if EV_MINIMAL < 2 1555#if EV_FEATURE_API
697# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1556# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
698# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1557# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
699# define EV_INVOKE_PENDING invoke_cb (EV_A) 1558# define EV_INVOKE_PENDING invoke_cb (EV_A)
700#else 1559#else
701# define EV_RELEASE_CB (void)0 1560# define EV_RELEASE_CB (void)0
702# define EV_ACQUIRE_CB (void)0 1561# define EV_ACQUIRE_CB (void)0
703# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1562# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
704#endif 1563#endif
705 1564
706#define EVUNLOOP_RECURSE 0x80 1565#define EVBREAK_RECURSE 0x80
707 1566
708/*****************************************************************************/ 1567/*****************************************************************************/
709 1568
710#ifndef EV_HAVE_EV_TIME 1569#ifndef EV_HAVE_EV_TIME
711ev_tstamp 1570ev_tstamp
712ev_time (void) 1571ev_time (void) EV_THROW
713{ 1572{
714#if EV_USE_REALTIME 1573#if EV_USE_REALTIME
715 if (expect_true (have_realtime)) 1574 if (expect_true (have_realtime))
716 { 1575 {
717 struct timespec ts; 1576 struct timespec ts;
… …
741 return ev_time (); 1600 return ev_time ();
742} 1601}
743 1602
744#if EV_MULTIPLICITY 1603#if EV_MULTIPLICITY
745ev_tstamp 1604ev_tstamp
746ev_now (EV_P) 1605ev_now (EV_P) EV_THROW
747{ 1606{
748 return ev_rt_now; 1607 return ev_rt_now;
749} 1608}
750#endif 1609#endif
751 1610
752void 1611void
753ev_sleep (ev_tstamp delay) 1612ev_sleep (ev_tstamp delay) EV_THROW
754{ 1613{
755 if (delay > 0.) 1614 if (delay > 0.)
756 { 1615 {
757#if EV_USE_NANOSLEEP 1616#if EV_USE_NANOSLEEP
758 struct timespec ts; 1617 struct timespec ts;
759 1618
760 ts.tv_sec = (time_t)delay; 1619 EV_TS_SET (ts, delay);
761 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
762
763 nanosleep (&ts, 0); 1620 nanosleep (&ts, 0);
764#elif defined(_WIN32) 1621#elif defined _WIN32
765 Sleep ((unsigned long)(delay * 1e3)); 1622 Sleep ((unsigned long)(delay * 1e3));
766#else 1623#else
767 struct timeval tv; 1624 struct timeval tv;
768 1625
769 tv.tv_sec = (time_t)delay;
770 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
771
772 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1626 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
773 /* something not guaranteed by newer posix versions, but guaranteed */ 1627 /* something not guaranteed by newer posix versions, but guaranteed */
774 /* by older ones */ 1628 /* by older ones */
1629 EV_TV_SET (tv, delay);
775 select (0, 0, 0, 0, &tv); 1630 select (0, 0, 0, 0, &tv);
776#endif 1631#endif
777 } 1632 }
778} 1633}
779 1634
780/*****************************************************************************/ 1635/*****************************************************************************/
781 1636
782#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1637#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
783 1638
784/* find a suitable new size for the given array, */ 1639/* find a suitable new size for the given array, */
785/* hopefully by rounding to a ncie-to-malloc size */ 1640/* hopefully by rounding to a nice-to-malloc size */
786inline_size int 1641inline_size int
787array_nextsize (int elem, int cur, int cnt) 1642array_nextsize (int elem, int cur, int cnt)
788{ 1643{
789 int ncur = cur + 1; 1644 int ncur = cur + 1;
790 1645
791 do 1646 do
792 ncur <<= 1; 1647 ncur <<= 1;
793 while (cnt > ncur); 1648 while (cnt > ncur);
794 1649
795 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1650 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
796 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1651 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
797 { 1652 {
798 ncur *= elem; 1653 ncur *= elem;
799 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1654 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
800 ncur = ncur - sizeof (void *) * 4; 1655 ncur = ncur - sizeof (void *) * 4;
… …
802 } 1657 }
803 1658
804 return ncur; 1659 return ncur;
805} 1660}
806 1661
807static noinline void * 1662static void * noinline ecb_cold
808array_realloc (int elem, void *base, int *cur, int cnt) 1663array_realloc (int elem, void *base, int *cur, int cnt)
809{ 1664{
810 *cur = array_nextsize (elem, *cur, cnt); 1665 *cur = array_nextsize (elem, *cur, cnt);
811 return ev_realloc (base, elem * *cur); 1666 return ev_realloc (base, elem * *cur);
812} 1667}
… …
815 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1670 memset ((void *)(base), 0, sizeof (*(base)) * (count))
816 1671
817#define array_needsize(type,base,cur,cnt,init) \ 1672#define array_needsize(type,base,cur,cnt,init) \
818 if (expect_false ((cnt) > (cur))) \ 1673 if (expect_false ((cnt) > (cur))) \
819 { \ 1674 { \
820 int ocur_ = (cur); \ 1675 int ecb_unused ocur_ = (cur); \
821 (base) = (type *)array_realloc \ 1676 (base) = (type *)array_realloc \
822 (sizeof (type), (base), &(cur), (cnt)); \ 1677 (sizeof (type), (base), &(cur), (cnt)); \
823 init ((base) + (ocur_), (cur) - ocur_); \ 1678 init ((base) + (ocur_), (cur) - ocur_); \
824 } 1679 }
825 1680
… …
843pendingcb (EV_P_ ev_prepare *w, int revents) 1698pendingcb (EV_P_ ev_prepare *w, int revents)
844{ 1699{
845} 1700}
846 1701
847void noinline 1702void noinline
848ev_feed_event (EV_P_ void *w, int revents) 1703ev_feed_event (EV_P_ void *w, int revents) EV_THROW
849{ 1704{
850 W w_ = (W)w; 1705 W w_ = (W)w;
851 int pri = ABSPRI (w_); 1706 int pri = ABSPRI (w_);
852 1707
853 if (expect_false (w_->pending)) 1708 if (expect_false (w_->pending))
… …
857 w_->pending = ++pendingcnt [pri]; 1712 w_->pending = ++pendingcnt [pri];
858 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1713 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
859 pendings [pri][w_->pending - 1].w = w_; 1714 pendings [pri][w_->pending - 1].w = w_;
860 pendings [pri][w_->pending - 1].events = revents; 1715 pendings [pri][w_->pending - 1].events = revents;
861 } 1716 }
1717
1718 pendingpri = NUMPRI - 1;
862} 1719}
863 1720
864inline_speed void 1721inline_speed void
865feed_reverse (EV_P_ W w) 1722feed_reverse (EV_P_ W w)
866{ 1723{
… …
886} 1743}
887 1744
888/*****************************************************************************/ 1745/*****************************************************************************/
889 1746
890inline_speed void 1747inline_speed void
891fd_event_nc (EV_P_ int fd, int revents) 1748fd_event_nocheck (EV_P_ int fd, int revents)
892{ 1749{
893 ANFD *anfd = anfds + fd; 1750 ANFD *anfd = anfds + fd;
894 ev_io *w; 1751 ev_io *w;
895 1752
896 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1753 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
908fd_event (EV_P_ int fd, int revents) 1765fd_event (EV_P_ int fd, int revents)
909{ 1766{
910 ANFD *anfd = anfds + fd; 1767 ANFD *anfd = anfds + fd;
911 1768
912 if (expect_true (!anfd->reify)) 1769 if (expect_true (!anfd->reify))
913 fd_event_nc (EV_A_ fd, revents); 1770 fd_event_nocheck (EV_A_ fd, revents);
914} 1771}
915 1772
916void 1773void
917ev_feed_fd_event (EV_P_ int fd, int revents) 1774ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
918{ 1775{
919 if (fd >= 0 && fd < anfdmax) 1776 if (fd >= 0 && fd < anfdmax)
920 fd_event_nc (EV_A_ fd, revents); 1777 fd_event_nocheck (EV_A_ fd, revents);
921} 1778}
922 1779
923/* make sure the external fd watch events are in-sync */ 1780/* make sure the external fd watch events are in-sync */
924/* with the kernel/libev internal state */ 1781/* with the kernel/libev internal state */
925inline_size void 1782inline_size void
926fd_reify (EV_P) 1783fd_reify (EV_P)
927{ 1784{
928 int i; 1785 int i;
929 1786
1787#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1788 for (i = 0; i < fdchangecnt; ++i)
1789 {
1790 int fd = fdchanges [i];
1791 ANFD *anfd = anfds + fd;
1792
1793 if (anfd->reify & EV__IOFDSET && anfd->head)
1794 {
1795 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1796
1797 if (handle != anfd->handle)
1798 {
1799 unsigned long arg;
1800
1801 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1802
1803 /* handle changed, but fd didn't - we need to do it in two steps */
1804 backend_modify (EV_A_ fd, anfd->events, 0);
1805 anfd->events = 0;
1806 anfd->handle = handle;
1807 }
1808 }
1809 }
1810#endif
1811
930 for (i = 0; i < fdchangecnt; ++i) 1812 for (i = 0; i < fdchangecnt; ++i)
931 { 1813 {
932 int fd = fdchanges [i]; 1814 int fd = fdchanges [i];
933 ANFD *anfd = anfds + fd; 1815 ANFD *anfd = anfds + fd;
934 ev_io *w; 1816 ev_io *w;
935 1817
936 unsigned char events = 0; 1818 unsigned char o_events = anfd->events;
1819 unsigned char o_reify = anfd->reify;
937 1820
938 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1821 anfd->reify = 0;
939 events |= (unsigned char)w->events;
940 1822
941#if EV_SELECT_IS_WINSOCKET 1823 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
942 if (events)
943 { 1824 {
944 unsigned long arg; 1825 anfd->events = 0;
945 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1826
946 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1827 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1828 anfd->events |= (unsigned char)w->events;
1829
1830 if (o_events != anfd->events)
1831 o_reify = EV__IOFDSET; /* actually |= */
947 } 1832 }
948#endif
949 1833
950 { 1834 if (o_reify & EV__IOFDSET)
951 unsigned char o_events = anfd->events;
952 unsigned char o_reify = anfd->reify;
953
954 anfd->reify = 0;
955 anfd->events = events;
956
957 if (o_events != events || o_reify & EV__IOFDSET)
958 backend_modify (EV_A_ fd, o_events, events); 1835 backend_modify (EV_A_ fd, o_events, anfd->events);
959 }
960 } 1836 }
961 1837
962 fdchangecnt = 0; 1838 fdchangecnt = 0;
963} 1839}
964 1840
… …
976 fdchanges [fdchangecnt - 1] = fd; 1852 fdchanges [fdchangecnt - 1] = fd;
977 } 1853 }
978} 1854}
979 1855
980/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1856/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
981inline_speed void 1857inline_speed void ecb_cold
982fd_kill (EV_P_ int fd) 1858fd_kill (EV_P_ int fd)
983{ 1859{
984 ev_io *w; 1860 ev_io *w;
985 1861
986 while ((w = (ev_io *)anfds [fd].head)) 1862 while ((w = (ev_io *)anfds [fd].head))
… …
988 ev_io_stop (EV_A_ w); 1864 ev_io_stop (EV_A_ w);
989 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1865 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
990 } 1866 }
991} 1867}
992 1868
993/* check whether the given fd is atcually valid, for error recovery */ 1869/* check whether the given fd is actually valid, for error recovery */
994inline_size int 1870inline_size int ecb_cold
995fd_valid (int fd) 1871fd_valid (int fd)
996{ 1872{
997#ifdef _WIN32 1873#ifdef _WIN32
998 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1874 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
999#else 1875#else
1000 return fcntl (fd, F_GETFD) != -1; 1876 return fcntl (fd, F_GETFD) != -1;
1001#endif 1877#endif
1002} 1878}
1003 1879
1004/* called on EBADF to verify fds */ 1880/* called on EBADF to verify fds */
1005static void noinline 1881static void noinline ecb_cold
1006fd_ebadf (EV_P) 1882fd_ebadf (EV_P)
1007{ 1883{
1008 int fd; 1884 int fd;
1009 1885
1010 for (fd = 0; fd < anfdmax; ++fd) 1886 for (fd = 0; fd < anfdmax; ++fd)
… …
1012 if (!fd_valid (fd) && errno == EBADF) 1888 if (!fd_valid (fd) && errno == EBADF)
1013 fd_kill (EV_A_ fd); 1889 fd_kill (EV_A_ fd);
1014} 1890}
1015 1891
1016/* called on ENOMEM in select/poll to kill some fds and retry */ 1892/* called on ENOMEM in select/poll to kill some fds and retry */
1017static void noinline 1893static void noinline ecb_cold
1018fd_enomem (EV_P) 1894fd_enomem (EV_P)
1019{ 1895{
1020 int fd; 1896 int fd;
1021 1897
1022 for (fd = anfdmax; fd--; ) 1898 for (fd = anfdmax; fd--; )
… …
1040 anfds [fd].emask = 0; 1916 anfds [fd].emask = 0;
1041 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1917 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1042 } 1918 }
1043} 1919}
1044 1920
1921/* used to prepare libev internal fd's */
1922/* this is not fork-safe */
1923inline_speed void
1924fd_intern (int fd)
1925{
1926#ifdef _WIN32
1927 unsigned long arg = 1;
1928 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1929#else
1930 fcntl (fd, F_SETFD, FD_CLOEXEC);
1931 fcntl (fd, F_SETFL, O_NONBLOCK);
1932#endif
1933}
1934
1045/*****************************************************************************/ 1935/*****************************************************************************/
1046 1936
1047/* 1937/*
1048 * the heap functions want a real array index. array index 0 uis guaranteed to not 1938 * the heap functions want a real array index. array index 0 is guaranteed to not
1049 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1939 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1050 * the branching factor of the d-tree. 1940 * the branching factor of the d-tree.
1051 */ 1941 */
1052 1942
1053/* 1943/*
… …
1201 2091
1202static ANSIG signals [EV_NSIG - 1]; 2092static ANSIG signals [EV_NSIG - 1];
1203 2093
1204/*****************************************************************************/ 2094/*****************************************************************************/
1205 2095
1206/* used to prepare libev internal fd's */ 2096#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1207/* this is not fork-safe */ 2097
2098static void noinline ecb_cold
2099evpipe_init (EV_P)
2100{
2101 if (!ev_is_active (&pipe_w))
2102 {
2103 int fds [2];
2104
2105# if EV_USE_EVENTFD
2106 fds [0] = -1;
2107 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
2108 if (fds [1] < 0 && errno == EINVAL)
2109 fds [1] = eventfd (0, 0);
2110
2111 if (fds [1] < 0)
2112# endif
2113 {
2114 while (pipe (fds))
2115 ev_syserr ("(libev) error creating signal/async pipe");
2116
2117 fd_intern (fds [0]);
2118 }
2119
2120 evpipe [0] = fds [0];
2121
2122 if (evpipe [1] < 0)
2123 evpipe [1] = fds [1]; /* first call, set write fd */
2124 else
2125 {
2126 /* on subsequent calls, do not change evpipe [1] */
2127 /* so that evpipe_write can always rely on its value. */
2128 /* this branch does not do anything sensible on windows, */
2129 /* so must not be executed on windows */
2130
2131 dup2 (fds [1], evpipe [1]);
2132 close (fds [1]);
2133 }
2134
2135 fd_intern (evpipe [1]);
2136
2137 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2138 ev_io_start (EV_A_ &pipe_w);
2139 ev_unref (EV_A); /* watcher should not keep loop alive */
2140 }
2141}
2142
1208inline_speed void 2143inline_speed void
1209fd_intern (int fd) 2144evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1210{ 2145{
1211#ifdef _WIN32 2146 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1212 unsigned long arg = 1;
1213 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1214#else
1215 fcntl (fd, F_SETFD, FD_CLOEXEC);
1216 fcntl (fd, F_SETFL, O_NONBLOCK);
1217#endif
1218}
1219 2147
1220static void noinline 2148 if (expect_true (*flag))
1221evpipe_init (EV_P) 2149 return;
1222{ 2150
1223 if (!ev_is_active (&pipe_w)) 2151 *flag = 1;
2152 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2153
2154 pipe_write_skipped = 1;
2155
2156 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2157
2158 if (pipe_write_wanted)
1224 { 2159 {
2160 int old_errno;
2161
2162 pipe_write_skipped = 0;
2163 ECB_MEMORY_FENCE_RELEASE;
2164
2165 old_errno = errno; /* save errno because write will clobber it */
2166
1225#if EV_USE_EVENTFD 2167#if EV_USE_EVENTFD
1226 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2168 if (evpipe [0] < 0)
1227 if (evfd < 0 && errno == EINVAL)
1228 evfd = eventfd (0, 0);
1229
1230 if (evfd >= 0)
1231 { 2169 {
1232 evpipe [0] = -1; 2170 uint64_t counter = 1;
1233 fd_intern (evfd); /* doing it twice doesn't hurt */ 2171 write (evpipe [1], &counter, sizeof (uint64_t));
1234 ev_io_set (&pipe_w, evfd, EV_READ);
1235 } 2172 }
1236 else 2173 else
1237#endif 2174#endif
1238 { 2175 {
1239 while (pipe (evpipe)) 2176#ifdef _WIN32
1240 ev_syserr ("(libev) error creating signal/async pipe"); 2177 WSABUF buf;
1241 2178 DWORD sent;
1242 fd_intern (evpipe [0]); 2179 buf.buf = &buf;
1243 fd_intern (evpipe [1]); 2180 buf.len = 1;
1244 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2181 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2182#else
2183 write (evpipe [1], &(evpipe [1]), 1);
2184#endif
1245 } 2185 }
1246
1247 ev_io_start (EV_A_ &pipe_w);
1248 ev_unref (EV_A); /* watcher should not keep loop alive */
1249 }
1250}
1251
1252inline_size void
1253evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1254{
1255 if (!*flag)
1256 {
1257 int old_errno = errno; /* save errno because write might clobber it */
1258
1259 *flag = 1;
1260
1261#if EV_USE_EVENTFD
1262 if (evfd >= 0)
1263 {
1264 uint64_t counter = 1;
1265 write (evfd, &counter, sizeof (uint64_t));
1266 }
1267 else
1268#endif
1269 write (evpipe [1], &old_errno, 1);
1270 2186
1271 errno = old_errno; 2187 errno = old_errno;
1272 } 2188 }
1273} 2189}
1274 2190
… …
1277static void 2193static void
1278pipecb (EV_P_ ev_io *iow, int revents) 2194pipecb (EV_P_ ev_io *iow, int revents)
1279{ 2195{
1280 int i; 2196 int i;
1281 2197
2198 if (revents & EV_READ)
2199 {
1282#if EV_USE_EVENTFD 2200#if EV_USE_EVENTFD
1283 if (evfd >= 0) 2201 if (evpipe [0] < 0)
1284 { 2202 {
1285 uint64_t counter; 2203 uint64_t counter;
1286 read (evfd, &counter, sizeof (uint64_t)); 2204 read (evpipe [1], &counter, sizeof (uint64_t));
1287 } 2205 }
1288 else 2206 else
1289#endif 2207#endif
1290 { 2208 {
1291 char dummy; 2209 char dummy[4];
2210#ifdef _WIN32
2211 WSABUF buf;
2212 DWORD recvd;
2213 DWORD flags = 0;
2214 buf.buf = dummy;
2215 buf.len = sizeof (dummy);
2216 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2217#else
1292 read (evpipe [0], &dummy, 1); 2218 read (evpipe [0], &dummy, sizeof (dummy));
2219#endif
2220 }
1293 } 2221 }
1294 2222
2223 pipe_write_skipped = 0;
2224
2225 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2226
2227#if EV_SIGNAL_ENABLE
1295 if (sig_pending) 2228 if (sig_pending)
1296 { 2229 {
1297 sig_pending = 0; 2230 sig_pending = 0;
2231
2232 ECB_MEMORY_FENCE;
1298 2233
1299 for (i = EV_NSIG - 1; i--; ) 2234 for (i = EV_NSIG - 1; i--; )
1300 if (expect_false (signals [i].pending)) 2235 if (expect_false (signals [i].pending))
1301 ev_feed_signal_event (EV_A_ i + 1); 2236 ev_feed_signal_event (EV_A_ i + 1);
1302 } 2237 }
2238#endif
1303 2239
1304#if EV_ASYNC_ENABLE 2240#if EV_ASYNC_ENABLE
1305 if (async_pending) 2241 if (async_pending)
1306 { 2242 {
1307 async_pending = 0; 2243 async_pending = 0;
2244
2245 ECB_MEMORY_FENCE;
1308 2246
1309 for (i = asynccnt; i--; ) 2247 for (i = asynccnt; i--; )
1310 if (asyncs [i]->sent) 2248 if (asyncs [i]->sent)
1311 { 2249 {
1312 asyncs [i]->sent = 0; 2250 asyncs [i]->sent = 0;
2251 ECB_MEMORY_FENCE_RELEASE;
1313 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2252 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1314 } 2253 }
1315 } 2254 }
1316#endif 2255#endif
1317} 2256}
1318 2257
1319/*****************************************************************************/ 2258/*****************************************************************************/
1320 2259
2260void
2261ev_feed_signal (int signum) EV_THROW
2262{
2263#if EV_MULTIPLICITY
2264 EV_P;
2265 ECB_MEMORY_FENCE_ACQUIRE;
2266 EV_A = signals [signum - 1].loop;
2267
2268 if (!EV_A)
2269 return;
2270#endif
2271
2272 signals [signum - 1].pending = 1;
2273 evpipe_write (EV_A_ &sig_pending);
2274}
2275
1321static void 2276static void
1322ev_sighandler (int signum) 2277ev_sighandler (int signum)
1323{ 2278{
1324#if EV_MULTIPLICITY
1325 EV_P = signals [signum - 1].loop;
1326#endif
1327
1328#ifdef _WIN32 2279#ifdef _WIN32
1329 signal (signum, ev_sighandler); 2280 signal (signum, ev_sighandler);
1330#endif 2281#endif
1331 2282
1332 signals [signum - 1].pending = 1; 2283 ev_feed_signal (signum);
1333 evpipe_write (EV_A_ &sig_pending);
1334} 2284}
1335 2285
1336void noinline 2286void noinline
1337ev_feed_signal_event (EV_P_ int signum) 2287ev_feed_signal_event (EV_P_ int signum) EV_THROW
1338{ 2288{
1339 WL w; 2289 WL w;
1340 2290
1341 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2291 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1342 return; 2292 return;
1343 2293
1344 --signum; 2294 --signum;
1345 2295
1346#if EV_MULTIPLICITY 2296#if EV_MULTIPLICITY
… …
1350 if (expect_false (signals [signum].loop != EV_A)) 2300 if (expect_false (signals [signum].loop != EV_A))
1351 return; 2301 return;
1352#endif 2302#endif
1353 2303
1354 signals [signum].pending = 0; 2304 signals [signum].pending = 0;
2305 ECB_MEMORY_FENCE_RELEASE;
1355 2306
1356 for (w = signals [signum].head; w; w = w->next) 2307 for (w = signals [signum].head; w; w = w->next)
1357 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2308 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1358} 2309}
1359 2310
… …
1375 break; 2326 break;
1376 } 2327 }
1377} 2328}
1378#endif 2329#endif
1379 2330
2331#endif
2332
1380/*****************************************************************************/ 2333/*****************************************************************************/
1381 2334
2335#if EV_CHILD_ENABLE
1382static WL childs [EV_PID_HASHSIZE]; 2336static WL childs [EV_PID_HASHSIZE];
1383
1384#ifndef _WIN32
1385 2337
1386static ev_signal childev; 2338static ev_signal childev;
1387 2339
1388#ifndef WIFCONTINUED 2340#ifndef WIFCONTINUED
1389# define WIFCONTINUED(status) 0 2341# define WIFCONTINUED(status) 0
… …
1394child_reap (EV_P_ int chain, int pid, int status) 2346child_reap (EV_P_ int chain, int pid, int status)
1395{ 2347{
1396 ev_child *w; 2348 ev_child *w;
1397 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2349 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1398 2350
1399 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2351 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1400 { 2352 {
1401 if ((w->pid == pid || !w->pid) 2353 if ((w->pid == pid || !w->pid)
1402 && (!traced || (w->flags & 1))) 2354 && (!traced || (w->flags & 1)))
1403 { 2355 {
1404 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2356 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1429 /* make sure we are called again until all children have been reaped */ 2381 /* make sure we are called again until all children have been reaped */
1430 /* we need to do it this way so that the callback gets called before we continue */ 2382 /* we need to do it this way so that the callback gets called before we continue */
1431 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2383 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1432 2384
1433 child_reap (EV_A_ pid, pid, status); 2385 child_reap (EV_A_ pid, pid, status);
1434 if (EV_PID_HASHSIZE > 1) 2386 if ((EV_PID_HASHSIZE) > 1)
1435 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2387 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1436} 2388}
1437 2389
1438#endif 2390#endif
1439 2391
1440/*****************************************************************************/ 2392/*****************************************************************************/
1441 2393
2394#if EV_USE_IOCP
2395# include "ev_iocp.c"
2396#endif
1442#if EV_USE_PORT 2397#if EV_USE_PORT
1443# include "ev_port.c" 2398# include "ev_port.c"
1444#endif 2399#endif
1445#if EV_USE_KQUEUE 2400#if EV_USE_KQUEUE
1446# include "ev_kqueue.c" 2401# include "ev_kqueue.c"
… …
1453#endif 2408#endif
1454#if EV_USE_SELECT 2409#if EV_USE_SELECT
1455# include "ev_select.c" 2410# include "ev_select.c"
1456#endif 2411#endif
1457 2412
1458int 2413int ecb_cold
1459ev_version_major (void) 2414ev_version_major (void) EV_THROW
1460{ 2415{
1461 return EV_VERSION_MAJOR; 2416 return EV_VERSION_MAJOR;
1462} 2417}
1463 2418
1464int 2419int ecb_cold
1465ev_version_minor (void) 2420ev_version_minor (void) EV_THROW
1466{ 2421{
1467 return EV_VERSION_MINOR; 2422 return EV_VERSION_MINOR;
1468} 2423}
1469 2424
1470/* return true if we are running with elevated privileges and should ignore env variables */ 2425/* return true if we are running with elevated privileges and should ignore env variables */
1471int inline_size 2426int inline_size ecb_cold
1472enable_secure (void) 2427enable_secure (void)
1473{ 2428{
1474#ifdef _WIN32 2429#ifdef _WIN32
1475 return 0; 2430 return 0;
1476#else 2431#else
1477 return getuid () != geteuid () 2432 return getuid () != geteuid ()
1478 || getgid () != getegid (); 2433 || getgid () != getegid ();
1479#endif 2434#endif
1480} 2435}
1481 2436
1482unsigned int 2437unsigned int ecb_cold
1483ev_supported_backends (void) 2438ev_supported_backends (void) EV_THROW
1484{ 2439{
1485 unsigned int flags = 0; 2440 unsigned int flags = 0;
1486 2441
1487 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2442 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1488 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2443 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1491 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2446 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1492 2447
1493 return flags; 2448 return flags;
1494} 2449}
1495 2450
1496unsigned int 2451unsigned int ecb_cold
1497ev_recommended_backends (void) 2452ev_recommended_backends (void) EV_THROW
1498{ 2453{
1499 unsigned int flags = ev_supported_backends (); 2454 unsigned int flags = ev_supported_backends ();
1500 2455
1501#ifndef __NetBSD__ 2456#ifndef __NetBSD__
1502 /* kqueue is borked on everything but netbsd apparently */ 2457 /* kqueue is borked on everything but netbsd apparently */
… …
1506#ifdef __APPLE__ 2461#ifdef __APPLE__
1507 /* only select works correctly on that "unix-certified" platform */ 2462 /* only select works correctly on that "unix-certified" platform */
1508 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2463 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1509 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2464 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1510#endif 2465#endif
2466#ifdef __FreeBSD__
2467 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2468#endif
1511 2469
1512 return flags; 2470 return flags;
1513} 2471}
1514 2472
2473unsigned int ecb_cold
2474ev_embeddable_backends (void) EV_THROW
2475{
2476 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2477
2478 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2479 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2480 flags &= ~EVBACKEND_EPOLL;
2481
2482 return flags;
2483}
2484
1515unsigned int 2485unsigned int
1516ev_embeddable_backends (void) 2486ev_backend (EV_P) EV_THROW
1517{ 2487{
1518 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2488 return backend;
1519
1520 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1521 /* please fix it and tell me how to detect the fix */
1522 flags &= ~EVBACKEND_EPOLL;
1523
1524 return flags;
1525} 2489}
1526 2490
2491#if EV_FEATURE_API
1527unsigned int 2492unsigned int
1528ev_backend (EV_P) 2493ev_iteration (EV_P) EV_THROW
1529{ 2494{
1530 return backend; 2495 return loop_count;
1531} 2496}
1532 2497
1533#if EV_MINIMAL < 2
1534unsigned int 2498unsigned int
1535ev_loop_count (EV_P) 2499ev_depth (EV_P) EV_THROW
1536{
1537 return loop_count;
1538}
1539
1540unsigned int
1541ev_loop_depth (EV_P)
1542{ 2500{
1543 return loop_depth; 2501 return loop_depth;
1544} 2502}
1545 2503
1546void 2504void
1547ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2505ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1548{ 2506{
1549 io_blocktime = interval; 2507 io_blocktime = interval;
1550} 2508}
1551 2509
1552void 2510void
1553ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2511ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1554{ 2512{
1555 timeout_blocktime = interval; 2513 timeout_blocktime = interval;
1556} 2514}
1557 2515
1558void 2516void
1559ev_set_userdata (EV_P_ void *data) 2517ev_set_userdata (EV_P_ void *data) EV_THROW
1560{ 2518{
1561 userdata = data; 2519 userdata = data;
1562} 2520}
1563 2521
1564void * 2522void *
1565ev_userdata (EV_P) 2523ev_userdata (EV_P) EV_THROW
1566{ 2524{
1567 return userdata; 2525 return userdata;
1568} 2526}
1569 2527
2528void
1570void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2529ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1571{ 2530{
1572 invoke_cb = invoke_pending_cb; 2531 invoke_cb = invoke_pending_cb;
1573} 2532}
1574 2533
2534void
1575void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2535ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1576{ 2536{
1577 release_cb = release; 2537 release_cb = release;
1578 acquire_cb = acquire; 2538 acquire_cb = acquire;
1579} 2539}
1580#endif 2540#endif
1581 2541
1582/* initialise a loop structure, must be zero-initialised */ 2542/* initialise a loop structure, must be zero-initialised */
1583static void noinline 2543static void noinline ecb_cold
1584loop_init (EV_P_ unsigned int flags) 2544loop_init (EV_P_ unsigned int flags) EV_THROW
1585{ 2545{
1586 if (!backend) 2546 if (!backend)
1587 { 2547 {
2548 origflags = flags;
2549
1588#if EV_USE_REALTIME 2550#if EV_USE_REALTIME
1589 if (!have_realtime) 2551 if (!have_realtime)
1590 { 2552 {
1591 struct timespec ts; 2553 struct timespec ts;
1592 2554
… …
1614 if (!(flags & EVFLAG_NOENV) 2576 if (!(flags & EVFLAG_NOENV)
1615 && !enable_secure () 2577 && !enable_secure ()
1616 && getenv ("LIBEV_FLAGS")) 2578 && getenv ("LIBEV_FLAGS"))
1617 flags = atoi (getenv ("LIBEV_FLAGS")); 2579 flags = atoi (getenv ("LIBEV_FLAGS"));
1618 2580
1619 ev_rt_now = ev_time (); 2581 ev_rt_now = ev_time ();
1620 mn_now = get_clock (); 2582 mn_now = get_clock ();
1621 now_floor = mn_now; 2583 now_floor = mn_now;
1622 rtmn_diff = ev_rt_now - mn_now; 2584 rtmn_diff = ev_rt_now - mn_now;
1623#if EV_MINIMAL < 2 2585#if EV_FEATURE_API
1624 invoke_cb = ev_invoke_pending; 2586 invoke_cb = ev_invoke_pending;
1625#endif 2587#endif
1626 2588
1627 io_blocktime = 0.; 2589 io_blocktime = 0.;
1628 timeout_blocktime = 0.; 2590 timeout_blocktime = 0.;
1629 backend = 0; 2591 backend = 0;
1630 backend_fd = -1; 2592 backend_fd = -1;
1631 sig_pending = 0; 2593 sig_pending = 0;
1632#if EV_ASYNC_ENABLE 2594#if EV_ASYNC_ENABLE
1633 async_pending = 0; 2595 async_pending = 0;
1634#endif 2596#endif
2597 pipe_write_skipped = 0;
2598 pipe_write_wanted = 0;
2599 evpipe [0] = -1;
2600 evpipe [1] = -1;
1635#if EV_USE_INOTIFY 2601#if EV_USE_INOTIFY
1636 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2602 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1637#endif 2603#endif
1638#if EV_USE_SIGNALFD 2604#if EV_USE_SIGNALFD
1639 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2605 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1640#endif 2606#endif
1641 2607
1642 if (!(flags & 0x0000ffffU)) 2608 if (!(flags & EVBACKEND_MASK))
1643 flags |= ev_recommended_backends (); 2609 flags |= ev_recommended_backends ();
1644 2610
2611#if EV_USE_IOCP
2612 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2613#endif
1645#if EV_USE_PORT 2614#if EV_USE_PORT
1646 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2615 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1647#endif 2616#endif
1648#if EV_USE_KQUEUE 2617#if EV_USE_KQUEUE
1649 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2618 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1658 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2627 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1659#endif 2628#endif
1660 2629
1661 ev_prepare_init (&pending_w, pendingcb); 2630 ev_prepare_init (&pending_w, pendingcb);
1662 2631
2632#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1663 ev_init (&pipe_w, pipecb); 2633 ev_init (&pipe_w, pipecb);
1664 ev_set_priority (&pipe_w, EV_MAXPRI); 2634 ev_set_priority (&pipe_w, EV_MAXPRI);
2635#endif
1665 } 2636 }
1666} 2637}
1667 2638
1668/* free up a loop structure */ 2639/* free up a loop structure */
1669static void noinline 2640void ecb_cold
1670loop_destroy (EV_P) 2641ev_loop_destroy (EV_P)
1671{ 2642{
1672 int i; 2643 int i;
2644
2645#if EV_MULTIPLICITY
2646 /* mimic free (0) */
2647 if (!EV_A)
2648 return;
2649#endif
2650
2651#if EV_CLEANUP_ENABLE
2652 /* queue cleanup watchers (and execute them) */
2653 if (expect_false (cleanupcnt))
2654 {
2655 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2656 EV_INVOKE_PENDING;
2657 }
2658#endif
2659
2660#if EV_CHILD_ENABLE
2661 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2662 {
2663 ev_ref (EV_A); /* child watcher */
2664 ev_signal_stop (EV_A_ &childev);
2665 }
2666#endif
1673 2667
1674 if (ev_is_active (&pipe_w)) 2668 if (ev_is_active (&pipe_w))
1675 { 2669 {
1676 /*ev_ref (EV_A);*/ 2670 /*ev_ref (EV_A);*/
1677 /*ev_io_stop (EV_A_ &pipe_w);*/ 2671 /*ev_io_stop (EV_A_ &pipe_w);*/
1678 2672
1679#if EV_USE_EVENTFD
1680 if (evfd >= 0)
1681 close (evfd);
1682#endif
1683
1684 if (evpipe [0] >= 0)
1685 {
1686 EV_WIN32_CLOSE_FD (evpipe [0]); 2673 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1687 EV_WIN32_CLOSE_FD (evpipe [1]); 2674 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1688 }
1689 } 2675 }
1690 2676
1691#if EV_USE_SIGNALFD 2677#if EV_USE_SIGNALFD
1692 if (ev_is_active (&sigfd_w)) 2678 if (ev_is_active (&sigfd_w))
1693 close (sigfd); 2679 close (sigfd);
… …
1699#endif 2685#endif
1700 2686
1701 if (backend_fd >= 0) 2687 if (backend_fd >= 0)
1702 close (backend_fd); 2688 close (backend_fd);
1703 2689
2690#if EV_USE_IOCP
2691 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2692#endif
1704#if EV_USE_PORT 2693#if EV_USE_PORT
1705 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2694 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1706#endif 2695#endif
1707#if EV_USE_KQUEUE 2696#if EV_USE_KQUEUE
1708 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2697 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1735 array_free (periodic, EMPTY); 2724 array_free (periodic, EMPTY);
1736#endif 2725#endif
1737#if EV_FORK_ENABLE 2726#if EV_FORK_ENABLE
1738 array_free (fork, EMPTY); 2727 array_free (fork, EMPTY);
1739#endif 2728#endif
2729#if EV_CLEANUP_ENABLE
2730 array_free (cleanup, EMPTY);
2731#endif
1740 array_free (prepare, EMPTY); 2732 array_free (prepare, EMPTY);
1741 array_free (check, EMPTY); 2733 array_free (check, EMPTY);
1742#if EV_ASYNC_ENABLE 2734#if EV_ASYNC_ENABLE
1743 array_free (async, EMPTY); 2735 array_free (async, EMPTY);
1744#endif 2736#endif
1745 2737
1746 backend = 0; 2738 backend = 0;
2739
2740#if EV_MULTIPLICITY
2741 if (ev_is_default_loop (EV_A))
2742#endif
2743 ev_default_loop_ptr = 0;
2744#if EV_MULTIPLICITY
2745 else
2746 ev_free (EV_A);
2747#endif
1747} 2748}
1748 2749
1749#if EV_USE_INOTIFY 2750#if EV_USE_INOTIFY
1750inline_size void infy_fork (EV_P); 2751inline_size void infy_fork (EV_P);
1751#endif 2752#endif
… …
1764#endif 2765#endif
1765#if EV_USE_INOTIFY 2766#if EV_USE_INOTIFY
1766 infy_fork (EV_A); 2767 infy_fork (EV_A);
1767#endif 2768#endif
1768 2769
2770#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1769 if (ev_is_active (&pipe_w)) 2771 if (ev_is_active (&pipe_w))
1770 { 2772 {
1771 /* this "locks" the handlers against writing to the pipe */ 2773 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1772 /* while we modify the fd vars */
1773 sig_pending = 1;
1774#if EV_ASYNC_ENABLE
1775 async_pending = 1;
1776#endif
1777 2774
1778 ev_ref (EV_A); 2775 ev_ref (EV_A);
1779 ev_io_stop (EV_A_ &pipe_w); 2776 ev_io_stop (EV_A_ &pipe_w);
1780 2777
1781#if EV_USE_EVENTFD
1782 if (evfd >= 0)
1783 close (evfd);
1784#endif
1785
1786 if (evpipe [0] >= 0) 2778 if (evpipe [0] >= 0)
1787 {
1788 EV_WIN32_CLOSE_FD (evpipe [0]); 2779 EV_WIN32_CLOSE_FD (evpipe [0]);
1789 EV_WIN32_CLOSE_FD (evpipe [1]);
1790 }
1791 2780
1792 evpipe_init (EV_A); 2781 evpipe_init (EV_A);
1793 /* now iterate over everything, in case we missed something */ 2782 /* iterate over everything, in case we missed something before */
1794 pipecb (EV_A_ &pipe_w, EV_READ); 2783 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1795 } 2784 }
2785#endif
1796 2786
1797 postfork = 0; 2787 postfork = 0;
1798} 2788}
1799 2789
1800#if EV_MULTIPLICITY 2790#if EV_MULTIPLICITY
1801 2791
1802struct ev_loop * 2792struct ev_loop * ecb_cold
1803ev_loop_new (unsigned int flags) 2793ev_loop_new (unsigned int flags) EV_THROW
1804{ 2794{
1805 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2795 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1806 2796
1807 memset (EV_A, 0, sizeof (struct ev_loop)); 2797 memset (EV_A, 0, sizeof (struct ev_loop));
1808 loop_init (EV_A_ flags); 2798 loop_init (EV_A_ flags);
1809 2799
1810 if (ev_backend (EV_A)) 2800 if (ev_backend (EV_A))
1811 return EV_A; 2801 return EV_A;
1812 2802
2803 ev_free (EV_A);
1813 return 0; 2804 return 0;
1814} 2805}
1815 2806
1816void
1817ev_loop_destroy (EV_P)
1818{
1819 loop_destroy (EV_A);
1820 ev_free (loop);
1821}
1822
1823void
1824ev_loop_fork (EV_P)
1825{
1826 postfork = 1; /* must be in line with ev_default_fork */
1827}
1828#endif /* multiplicity */ 2807#endif /* multiplicity */
1829 2808
1830#if EV_VERIFY 2809#if EV_VERIFY
1831static void noinline 2810static void noinline ecb_cold
1832verify_watcher (EV_P_ W w) 2811verify_watcher (EV_P_ W w)
1833{ 2812{
1834 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2813 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1835 2814
1836 if (w->pending) 2815 if (w->pending)
1837 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2816 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1838} 2817}
1839 2818
1840static void noinline 2819static void noinline ecb_cold
1841verify_heap (EV_P_ ANHE *heap, int N) 2820verify_heap (EV_P_ ANHE *heap, int N)
1842{ 2821{
1843 int i; 2822 int i;
1844 2823
1845 for (i = HEAP0; i < N + HEAP0; ++i) 2824 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1850 2829
1851 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2830 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1852 } 2831 }
1853} 2832}
1854 2833
1855static void noinline 2834static void noinline ecb_cold
1856array_verify (EV_P_ W *ws, int cnt) 2835array_verify (EV_P_ W *ws, int cnt)
1857{ 2836{
1858 while (cnt--) 2837 while (cnt--)
1859 { 2838 {
1860 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2839 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1861 verify_watcher (EV_A_ ws [cnt]); 2840 verify_watcher (EV_A_ ws [cnt]);
1862 } 2841 }
1863} 2842}
1864#endif 2843#endif
1865 2844
1866#if EV_MINIMAL < 2 2845#if EV_FEATURE_API
1867void 2846void ecb_cold
1868ev_loop_verify (EV_P) 2847ev_verify (EV_P) EV_THROW
1869{ 2848{
1870#if EV_VERIFY 2849#if EV_VERIFY
1871 int i; 2850 int i;
1872 WL w; 2851 WL w, w2;
1873 2852
1874 assert (activecnt >= -1); 2853 assert (activecnt >= -1);
1875 2854
1876 assert (fdchangemax >= fdchangecnt); 2855 assert (fdchangemax >= fdchangecnt);
1877 for (i = 0; i < fdchangecnt; ++i) 2856 for (i = 0; i < fdchangecnt; ++i)
1878 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2857 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1879 2858
1880 assert (anfdmax >= 0); 2859 assert (anfdmax >= 0);
1881 for (i = 0; i < anfdmax; ++i) 2860 for (i = 0; i < anfdmax; ++i)
2861 {
2862 int j = 0;
2863
1882 for (w = anfds [i].head; w; w = w->next) 2864 for (w = w2 = anfds [i].head; w; w = w->next)
1883 { 2865 {
1884 verify_watcher (EV_A_ (W)w); 2866 verify_watcher (EV_A_ (W)w);
2867
2868 if (j++ & 1)
2869 {
2870 assert (("libev: io watcher list contains a loop", w != w2));
2871 w2 = w2->next;
2872 }
2873
1885 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2874 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1886 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2875 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1887 } 2876 }
2877 }
1888 2878
1889 assert (timermax >= timercnt); 2879 assert (timermax >= timercnt);
1890 verify_heap (EV_A_ timers, timercnt); 2880 verify_heap (EV_A_ timers, timercnt);
1891 2881
1892#if EV_PERIODIC_ENABLE 2882#if EV_PERIODIC_ENABLE
… …
1907#if EV_FORK_ENABLE 2897#if EV_FORK_ENABLE
1908 assert (forkmax >= forkcnt); 2898 assert (forkmax >= forkcnt);
1909 array_verify (EV_A_ (W *)forks, forkcnt); 2899 array_verify (EV_A_ (W *)forks, forkcnt);
1910#endif 2900#endif
1911 2901
2902#if EV_CLEANUP_ENABLE
2903 assert (cleanupmax >= cleanupcnt);
2904 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2905#endif
2906
1912#if EV_ASYNC_ENABLE 2907#if EV_ASYNC_ENABLE
1913 assert (asyncmax >= asynccnt); 2908 assert (asyncmax >= asynccnt);
1914 array_verify (EV_A_ (W *)asyncs, asynccnt); 2909 array_verify (EV_A_ (W *)asyncs, asynccnt);
1915#endif 2910#endif
1916 2911
2912#if EV_PREPARE_ENABLE
1917 assert (preparemax >= preparecnt); 2913 assert (preparemax >= preparecnt);
1918 array_verify (EV_A_ (W *)prepares, preparecnt); 2914 array_verify (EV_A_ (W *)prepares, preparecnt);
2915#endif
1919 2916
2917#if EV_CHECK_ENABLE
1920 assert (checkmax >= checkcnt); 2918 assert (checkmax >= checkcnt);
1921 array_verify (EV_A_ (W *)checks, checkcnt); 2919 array_verify (EV_A_ (W *)checks, checkcnt);
2920#endif
1922 2921
1923# if 0 2922# if 0
2923#if EV_CHILD_ENABLE
1924 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2924 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1925 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2925 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2926#endif
1926# endif 2927# endif
1927#endif 2928#endif
1928} 2929}
1929#endif 2930#endif
1930 2931
1931#if EV_MULTIPLICITY 2932#if EV_MULTIPLICITY
1932struct ev_loop * 2933struct ev_loop * ecb_cold
1933ev_default_loop_init (unsigned int flags)
1934#else 2934#else
1935int 2935int
2936#endif
1936ev_default_loop (unsigned int flags) 2937ev_default_loop (unsigned int flags) EV_THROW
1937#endif
1938{ 2938{
1939 if (!ev_default_loop_ptr) 2939 if (!ev_default_loop_ptr)
1940 { 2940 {
1941#if EV_MULTIPLICITY 2941#if EV_MULTIPLICITY
1942 EV_P = ev_default_loop_ptr = &default_loop_struct; 2942 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1946 2946
1947 loop_init (EV_A_ flags); 2947 loop_init (EV_A_ flags);
1948 2948
1949 if (ev_backend (EV_A)) 2949 if (ev_backend (EV_A))
1950 { 2950 {
1951#ifndef _WIN32 2951#if EV_CHILD_ENABLE
1952 ev_signal_init (&childev, childcb, SIGCHLD); 2952 ev_signal_init (&childev, childcb, SIGCHLD);
1953 ev_set_priority (&childev, EV_MAXPRI); 2953 ev_set_priority (&childev, EV_MAXPRI);
1954 ev_signal_start (EV_A_ &childev); 2954 ev_signal_start (EV_A_ &childev);
1955 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2955 ev_unref (EV_A); /* child watcher should not keep loop alive */
1956#endif 2956#endif
… …
1961 2961
1962 return ev_default_loop_ptr; 2962 return ev_default_loop_ptr;
1963} 2963}
1964 2964
1965void 2965void
1966ev_default_destroy (void) 2966ev_loop_fork (EV_P) EV_THROW
1967{ 2967{
1968#if EV_MULTIPLICITY 2968 postfork = 1;
1969 EV_P = ev_default_loop_ptr;
1970#endif
1971
1972 ev_default_loop_ptr = 0;
1973
1974#ifndef _WIN32
1975 ev_ref (EV_A); /* child watcher */
1976 ev_signal_stop (EV_A_ &childev);
1977#endif
1978
1979 loop_destroy (EV_A);
1980}
1981
1982void
1983ev_default_fork (void)
1984{
1985#if EV_MULTIPLICITY
1986 EV_P = ev_default_loop_ptr;
1987#endif
1988
1989 postfork = 1; /* must be in line with ev_loop_fork */
1990} 2969}
1991 2970
1992/*****************************************************************************/ 2971/*****************************************************************************/
1993 2972
1994void 2973void
… …
1996{ 2975{
1997 EV_CB_INVOKE ((W)w, revents); 2976 EV_CB_INVOKE ((W)w, revents);
1998} 2977}
1999 2978
2000unsigned int 2979unsigned int
2001ev_pending_count (EV_P) 2980ev_pending_count (EV_P) EV_THROW
2002{ 2981{
2003 int pri; 2982 int pri;
2004 unsigned int count = 0; 2983 unsigned int count = 0;
2005 2984
2006 for (pri = NUMPRI; pri--; ) 2985 for (pri = NUMPRI; pri--; )
… …
2010} 2989}
2011 2990
2012void noinline 2991void noinline
2013ev_invoke_pending (EV_P) 2992ev_invoke_pending (EV_P)
2014{ 2993{
2015 int pri; 2994 pendingpri = NUMPRI;
2016 2995
2017 for (pri = NUMPRI; pri--; ) 2996 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2997 {
2998 --pendingpri;
2999
2018 while (pendingcnt [pri]) 3000 while (pendingcnt [pendingpri])
2019 { 3001 {
2020 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3002 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2021 3003
2022 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2023 /* ^ this is no longer true, as pending_w could be here */
2024
2025 p->w->pending = 0; 3004 p->w->pending = 0;
2026 EV_CB_INVOKE (p->w, p->events); 3005 EV_CB_INVOKE (p->w, p->events);
2027 EV_FREQUENT_CHECK; 3006 EV_FREQUENT_CHECK;
2028 } 3007 }
3008 }
2029} 3009}
2030 3010
2031#if EV_IDLE_ENABLE 3011#if EV_IDLE_ENABLE
2032/* make idle watchers pending. this handles the "call-idle */ 3012/* make idle watchers pending. this handles the "call-idle */
2033/* only when higher priorities are idle" logic */ 3013/* only when higher priorities are idle" logic */
… …
2085 EV_FREQUENT_CHECK; 3065 EV_FREQUENT_CHECK;
2086 feed_reverse (EV_A_ (W)w); 3066 feed_reverse (EV_A_ (W)w);
2087 } 3067 }
2088 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 3068 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2089 3069
2090 feed_reverse_done (EV_A_ EV_TIMEOUT); 3070 feed_reverse_done (EV_A_ EV_TIMER);
2091 } 3071 }
2092} 3072}
2093 3073
2094#if EV_PERIODIC_ENABLE 3074#if EV_PERIODIC_ENABLE
3075
3076static void noinline
3077periodic_recalc (EV_P_ ev_periodic *w)
3078{
3079 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3080 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3081
3082 /* the above almost always errs on the low side */
3083 while (at <= ev_rt_now)
3084 {
3085 ev_tstamp nat = at + w->interval;
3086
3087 /* when resolution fails us, we use ev_rt_now */
3088 if (expect_false (nat == at))
3089 {
3090 at = ev_rt_now;
3091 break;
3092 }
3093
3094 at = nat;
3095 }
3096
3097 ev_at (w) = at;
3098}
3099
2095/* make periodics pending */ 3100/* make periodics pending */
2096inline_size void 3101inline_size void
2097periodics_reify (EV_P) 3102periodics_reify (EV_P)
2098{ 3103{
2099 EV_FREQUENT_CHECK; 3104 EV_FREQUENT_CHECK;
2100 3105
2101 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3106 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2102 { 3107 {
2103 int feed_count = 0;
2104
2105 do 3108 do
2106 { 3109 {
2107 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3110 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2108 3111
2109 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3112 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2118 ANHE_at_cache (periodics [HEAP0]); 3121 ANHE_at_cache (periodics [HEAP0]);
2119 downheap (periodics, periodiccnt, HEAP0); 3122 downheap (periodics, periodiccnt, HEAP0);
2120 } 3123 }
2121 else if (w->interval) 3124 else if (w->interval)
2122 { 3125 {
2123 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3126 periodic_recalc (EV_A_ w);
2124 /* if next trigger time is not sufficiently in the future, put it there */
2125 /* this might happen because of floating point inexactness */
2126 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2127 {
2128 ev_at (w) += w->interval;
2129
2130 /* if interval is unreasonably low we might still have a time in the past */
2131 /* so correct this. this will make the periodic very inexact, but the user */
2132 /* has effectively asked to get triggered more often than possible */
2133 if (ev_at (w) < ev_rt_now)
2134 ev_at (w) = ev_rt_now;
2135 }
2136
2137 ANHE_at_cache (periodics [HEAP0]); 3127 ANHE_at_cache (periodics [HEAP0]);
2138 downheap (periodics, periodiccnt, HEAP0); 3128 downheap (periodics, periodiccnt, HEAP0);
2139 } 3129 }
2140 else 3130 else
2141 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3131 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2148 feed_reverse_done (EV_A_ EV_PERIODIC); 3138 feed_reverse_done (EV_A_ EV_PERIODIC);
2149 } 3139 }
2150} 3140}
2151 3141
2152/* simply recalculate all periodics */ 3142/* simply recalculate all periodics */
2153/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 3143/* TODO: maybe ensure that at least one event happens when jumping forward? */
2154static void noinline 3144static void noinline ecb_cold
2155periodics_reschedule (EV_P) 3145periodics_reschedule (EV_P)
2156{ 3146{
2157 int i; 3147 int i;
2158 3148
2159 /* adjust periodics after time jump */ 3149 /* adjust periodics after time jump */
… …
2162 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3152 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2163 3153
2164 if (w->reschedule_cb) 3154 if (w->reschedule_cb)
2165 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3155 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2166 else if (w->interval) 3156 else if (w->interval)
2167 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3157 periodic_recalc (EV_A_ w);
2168 3158
2169 ANHE_at_cache (periodics [i]); 3159 ANHE_at_cache (periodics [i]);
2170 } 3160 }
2171 3161
2172 reheap (periodics, periodiccnt); 3162 reheap (periodics, periodiccnt);
2173} 3163}
2174#endif 3164#endif
2175 3165
2176/* adjust all timers by a given offset */ 3166/* adjust all timers by a given offset */
2177static void noinline 3167static void noinline ecb_cold
2178timers_reschedule (EV_P_ ev_tstamp adjust) 3168timers_reschedule (EV_P_ ev_tstamp adjust)
2179{ 3169{
2180 int i; 3170 int i;
2181 3171
2182 for (i = 0; i < timercnt; ++i) 3172 for (i = 0; i < timercnt; ++i)
… …
2219 * doesn't hurt either as we only do this on time-jumps or 3209 * doesn't hurt either as we only do this on time-jumps or
2220 * in the unlikely event of having been preempted here. 3210 * in the unlikely event of having been preempted here.
2221 */ 3211 */
2222 for (i = 4; --i; ) 3212 for (i = 4; --i; )
2223 { 3213 {
3214 ev_tstamp diff;
2224 rtmn_diff = ev_rt_now - mn_now; 3215 rtmn_diff = ev_rt_now - mn_now;
2225 3216
3217 diff = odiff - rtmn_diff;
3218
2226 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3219 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2227 return; /* all is well */ 3220 return; /* all is well */
2228 3221
2229 ev_rt_now = ev_time (); 3222 ev_rt_now = ev_time ();
2230 mn_now = get_clock (); 3223 mn_now = get_clock ();
2231 now_floor = mn_now; 3224 now_floor = mn_now;
… …
2253 3246
2254 mn_now = ev_rt_now; 3247 mn_now = ev_rt_now;
2255 } 3248 }
2256} 3249}
2257 3250
2258void 3251int
2259ev_loop (EV_P_ int flags) 3252ev_run (EV_P_ int flags)
2260{ 3253{
2261#if EV_MINIMAL < 2 3254#if EV_FEATURE_API
2262 ++loop_depth; 3255 ++loop_depth;
2263#endif 3256#endif
2264 3257
2265 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3258 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2266 3259
2267 loop_done = EVUNLOOP_CANCEL; 3260 loop_done = EVBREAK_CANCEL;
2268 3261
2269 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3262 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2270 3263
2271 do 3264 do
2272 { 3265 {
2273#if EV_VERIFY >= 2 3266#if EV_VERIFY >= 2
2274 ev_loop_verify (EV_A); 3267 ev_verify (EV_A);
2275#endif 3268#endif
2276 3269
2277#ifndef _WIN32 3270#ifndef _WIN32
2278 if (expect_false (curpid)) /* penalise the forking check even more */ 3271 if (expect_false (curpid)) /* penalise the forking check even more */
2279 if (expect_false (getpid () != curpid)) 3272 if (expect_false (getpid () != curpid))
… …
2291 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3284 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2292 EV_INVOKE_PENDING; 3285 EV_INVOKE_PENDING;
2293 } 3286 }
2294#endif 3287#endif
2295 3288
3289#if EV_PREPARE_ENABLE
2296 /* queue prepare watchers (and execute them) */ 3290 /* queue prepare watchers (and execute them) */
2297 if (expect_false (preparecnt)) 3291 if (expect_false (preparecnt))
2298 { 3292 {
2299 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3293 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2300 EV_INVOKE_PENDING; 3294 EV_INVOKE_PENDING;
2301 } 3295 }
3296#endif
2302 3297
2303 if (expect_false (loop_done)) 3298 if (expect_false (loop_done))
2304 break; 3299 break;
2305 3300
2306 /* we might have forked, so reify kernel state if necessary */ 3301 /* we might have forked, so reify kernel state if necessary */
… …
2313 /* calculate blocking time */ 3308 /* calculate blocking time */
2314 { 3309 {
2315 ev_tstamp waittime = 0.; 3310 ev_tstamp waittime = 0.;
2316 ev_tstamp sleeptime = 0.; 3311 ev_tstamp sleeptime = 0.;
2317 3312
3313 /* remember old timestamp for io_blocktime calculation */
3314 ev_tstamp prev_mn_now = mn_now;
3315
3316 /* update time to cancel out callback processing overhead */
3317 time_update (EV_A_ 1e100);
3318
3319 /* from now on, we want a pipe-wake-up */
3320 pipe_write_wanted = 1;
3321
3322 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3323
2318 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3324 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2319 { 3325 {
2320 /* remember old timestamp for io_blocktime calculation */
2321 ev_tstamp prev_mn_now = mn_now;
2322
2323 /* update time to cancel out callback processing overhead */
2324 time_update (EV_A_ 1e100);
2325
2326 waittime = MAX_BLOCKTIME; 3326 waittime = MAX_BLOCKTIME;
2327 3327
2328 if (timercnt) 3328 if (timercnt)
2329 { 3329 {
2330 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3330 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2331 if (waittime > to) waittime = to; 3331 if (waittime > to) waittime = to;
2332 } 3332 }
2333 3333
2334#if EV_PERIODIC_ENABLE 3334#if EV_PERIODIC_ENABLE
2335 if (periodiccnt) 3335 if (periodiccnt)
2336 { 3336 {
2337 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3337 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2338 if (waittime > to) waittime = to; 3338 if (waittime > to) waittime = to;
2339 } 3339 }
2340#endif 3340#endif
2341 3341
2342 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3342 /* don't let timeouts decrease the waittime below timeout_blocktime */
2343 if (expect_false (waittime < timeout_blocktime)) 3343 if (expect_false (waittime < timeout_blocktime))
2344 waittime = timeout_blocktime; 3344 waittime = timeout_blocktime;
3345
3346 /* at this point, we NEED to wait, so we have to ensure */
3347 /* to pass a minimum nonzero value to the backend */
3348 if (expect_false (waittime < backend_mintime))
3349 waittime = backend_mintime;
2345 3350
2346 /* extra check because io_blocktime is commonly 0 */ 3351 /* extra check because io_blocktime is commonly 0 */
2347 if (expect_false (io_blocktime)) 3352 if (expect_false (io_blocktime))
2348 { 3353 {
2349 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3354 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2350 3355
2351 if (sleeptime > waittime - backend_fudge) 3356 if (sleeptime > waittime - backend_mintime)
2352 sleeptime = waittime - backend_fudge; 3357 sleeptime = waittime - backend_mintime;
2353 3358
2354 if (expect_true (sleeptime > 0.)) 3359 if (expect_true (sleeptime > 0.))
2355 { 3360 {
2356 ev_sleep (sleeptime); 3361 ev_sleep (sleeptime);
2357 waittime -= sleeptime; 3362 waittime -= sleeptime;
2358 } 3363 }
2359 } 3364 }
2360 } 3365 }
2361 3366
2362#if EV_MINIMAL < 2 3367#if EV_FEATURE_API
2363 ++loop_count; 3368 ++loop_count;
2364#endif 3369#endif
2365 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3370 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2366 backend_poll (EV_A_ waittime); 3371 backend_poll (EV_A_ waittime);
2367 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3372 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3373
3374 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3375
3376 ECB_MEMORY_FENCE_ACQUIRE;
3377 if (pipe_write_skipped)
3378 {
3379 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3380 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3381 }
3382
2368 3383
2369 /* update ev_rt_now, do magic */ 3384 /* update ev_rt_now, do magic */
2370 time_update (EV_A_ waittime + sleeptime); 3385 time_update (EV_A_ waittime + sleeptime);
2371 } 3386 }
2372 3387
… …
2379#if EV_IDLE_ENABLE 3394#if EV_IDLE_ENABLE
2380 /* queue idle watchers unless other events are pending */ 3395 /* queue idle watchers unless other events are pending */
2381 idle_reify (EV_A); 3396 idle_reify (EV_A);
2382#endif 3397#endif
2383 3398
3399#if EV_CHECK_ENABLE
2384 /* queue check watchers, to be executed first */ 3400 /* queue check watchers, to be executed first */
2385 if (expect_false (checkcnt)) 3401 if (expect_false (checkcnt))
2386 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3402 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3403#endif
2387 3404
2388 EV_INVOKE_PENDING; 3405 EV_INVOKE_PENDING;
2389 } 3406 }
2390 while (expect_true ( 3407 while (expect_true (
2391 activecnt 3408 activecnt
2392 && !loop_done 3409 && !loop_done
2393 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3410 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2394 )); 3411 ));
2395 3412
2396 if (loop_done == EVUNLOOP_ONE) 3413 if (loop_done == EVBREAK_ONE)
2397 loop_done = EVUNLOOP_CANCEL; 3414 loop_done = EVBREAK_CANCEL;
2398 3415
2399#if EV_MINIMAL < 2 3416#if EV_FEATURE_API
2400 --loop_depth; 3417 --loop_depth;
2401#endif 3418#endif
3419
3420 return activecnt;
2402} 3421}
2403 3422
2404void 3423void
2405ev_unloop (EV_P_ int how) 3424ev_break (EV_P_ int how) EV_THROW
2406{ 3425{
2407 loop_done = how; 3426 loop_done = how;
2408} 3427}
2409 3428
2410void 3429void
2411ev_ref (EV_P) 3430ev_ref (EV_P) EV_THROW
2412{ 3431{
2413 ++activecnt; 3432 ++activecnt;
2414} 3433}
2415 3434
2416void 3435void
2417ev_unref (EV_P) 3436ev_unref (EV_P) EV_THROW
2418{ 3437{
2419 --activecnt; 3438 --activecnt;
2420} 3439}
2421 3440
2422void 3441void
2423ev_now_update (EV_P) 3442ev_now_update (EV_P) EV_THROW
2424{ 3443{
2425 time_update (EV_A_ 1e100); 3444 time_update (EV_A_ 1e100);
2426} 3445}
2427 3446
2428void 3447void
2429ev_suspend (EV_P) 3448ev_suspend (EV_P) EV_THROW
2430{ 3449{
2431 ev_now_update (EV_A); 3450 ev_now_update (EV_A);
2432} 3451}
2433 3452
2434void 3453void
2435ev_resume (EV_P) 3454ev_resume (EV_P) EV_THROW
2436{ 3455{
2437 ev_tstamp mn_prev = mn_now; 3456 ev_tstamp mn_prev = mn_now;
2438 3457
2439 ev_now_update (EV_A); 3458 ev_now_update (EV_A);
2440 timers_reschedule (EV_A_ mn_now - mn_prev); 3459 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2479 w->pending = 0; 3498 w->pending = 0;
2480 } 3499 }
2481} 3500}
2482 3501
2483int 3502int
2484ev_clear_pending (EV_P_ void *w) 3503ev_clear_pending (EV_P_ void *w) EV_THROW
2485{ 3504{
2486 W w_ = (W)w; 3505 W w_ = (W)w;
2487 int pending = w_->pending; 3506 int pending = w_->pending;
2488 3507
2489 if (expect_true (pending)) 3508 if (expect_true (pending))
… …
2522} 3541}
2523 3542
2524/*****************************************************************************/ 3543/*****************************************************************************/
2525 3544
2526void noinline 3545void noinline
2527ev_io_start (EV_P_ ev_io *w) 3546ev_io_start (EV_P_ ev_io *w) EV_THROW
2528{ 3547{
2529 int fd = w->fd; 3548 int fd = w->fd;
2530 3549
2531 if (expect_false (ev_is_active (w))) 3550 if (expect_false (ev_is_active (w)))
2532 return; 3551 return;
… …
2538 3557
2539 ev_start (EV_A_ (W)w, 1); 3558 ev_start (EV_A_ (W)w, 1);
2540 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3559 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2541 wlist_add (&anfds[fd].head, (WL)w); 3560 wlist_add (&anfds[fd].head, (WL)w);
2542 3561
3562 /* common bug, apparently */
3563 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3564
2543 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3565 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2544 w->events &= ~EV__IOFDSET; 3566 w->events &= ~EV__IOFDSET;
2545 3567
2546 EV_FREQUENT_CHECK; 3568 EV_FREQUENT_CHECK;
2547} 3569}
2548 3570
2549void noinline 3571void noinline
2550ev_io_stop (EV_P_ ev_io *w) 3572ev_io_stop (EV_P_ ev_io *w) EV_THROW
2551{ 3573{
2552 clear_pending (EV_A_ (W)w); 3574 clear_pending (EV_A_ (W)w);
2553 if (expect_false (!ev_is_active (w))) 3575 if (expect_false (!ev_is_active (w)))
2554 return; 3576 return;
2555 3577
… …
2558 EV_FREQUENT_CHECK; 3580 EV_FREQUENT_CHECK;
2559 3581
2560 wlist_del (&anfds[w->fd].head, (WL)w); 3582 wlist_del (&anfds[w->fd].head, (WL)w);
2561 ev_stop (EV_A_ (W)w); 3583 ev_stop (EV_A_ (W)w);
2562 3584
2563 fd_change (EV_A_ w->fd, 1); 3585 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2564 3586
2565 EV_FREQUENT_CHECK; 3587 EV_FREQUENT_CHECK;
2566} 3588}
2567 3589
2568void noinline 3590void noinline
2569ev_timer_start (EV_P_ ev_timer *w) 3591ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2570{ 3592{
2571 if (expect_false (ev_is_active (w))) 3593 if (expect_false (ev_is_active (w)))
2572 return; 3594 return;
2573 3595
2574 ev_at (w) += mn_now; 3596 ev_at (w) += mn_now;
… …
2588 3610
2589 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3611 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2590} 3612}
2591 3613
2592void noinline 3614void noinline
2593ev_timer_stop (EV_P_ ev_timer *w) 3615ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2594{ 3616{
2595 clear_pending (EV_A_ (W)w); 3617 clear_pending (EV_A_ (W)w);
2596 if (expect_false (!ev_is_active (w))) 3618 if (expect_false (!ev_is_active (w)))
2597 return; 3619 return;
2598 3620
… …
2618 3640
2619 EV_FREQUENT_CHECK; 3641 EV_FREQUENT_CHECK;
2620} 3642}
2621 3643
2622void noinline 3644void noinline
2623ev_timer_again (EV_P_ ev_timer *w) 3645ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2624{ 3646{
2625 EV_FREQUENT_CHECK; 3647 EV_FREQUENT_CHECK;
3648
3649 clear_pending (EV_A_ (W)w);
2626 3650
2627 if (ev_is_active (w)) 3651 if (ev_is_active (w))
2628 { 3652 {
2629 if (w->repeat) 3653 if (w->repeat)
2630 { 3654 {
… …
2643 3667
2644 EV_FREQUENT_CHECK; 3668 EV_FREQUENT_CHECK;
2645} 3669}
2646 3670
2647ev_tstamp 3671ev_tstamp
2648ev_timer_remaining (EV_P_ ev_timer *w) 3672ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2649{ 3673{
2650 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3674 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2651} 3675}
2652 3676
2653#if EV_PERIODIC_ENABLE 3677#if EV_PERIODIC_ENABLE
2654void noinline 3678void noinline
2655ev_periodic_start (EV_P_ ev_periodic *w) 3679ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2656{ 3680{
2657 if (expect_false (ev_is_active (w))) 3681 if (expect_false (ev_is_active (w)))
2658 return; 3682 return;
2659 3683
2660 if (w->reschedule_cb) 3684 if (w->reschedule_cb)
2661 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3685 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2662 else if (w->interval) 3686 else if (w->interval)
2663 { 3687 {
2664 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3688 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2665 /* this formula differs from the one in periodic_reify because we do not always round up */ 3689 periodic_recalc (EV_A_ w);
2666 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2667 } 3690 }
2668 else 3691 else
2669 ev_at (w) = w->offset; 3692 ev_at (w) = w->offset;
2670 3693
2671 EV_FREQUENT_CHECK; 3694 EV_FREQUENT_CHECK;
… …
2681 3704
2682 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3705 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2683} 3706}
2684 3707
2685void noinline 3708void noinline
2686ev_periodic_stop (EV_P_ ev_periodic *w) 3709ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2687{ 3710{
2688 clear_pending (EV_A_ (W)w); 3711 clear_pending (EV_A_ (W)w);
2689 if (expect_false (!ev_is_active (w))) 3712 if (expect_false (!ev_is_active (w)))
2690 return; 3713 return;
2691 3714
… …
2709 3732
2710 EV_FREQUENT_CHECK; 3733 EV_FREQUENT_CHECK;
2711} 3734}
2712 3735
2713void noinline 3736void noinline
2714ev_periodic_again (EV_P_ ev_periodic *w) 3737ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2715{ 3738{
2716 /* TODO: use adjustheap and recalculation */ 3739 /* TODO: use adjustheap and recalculation */
2717 ev_periodic_stop (EV_A_ w); 3740 ev_periodic_stop (EV_A_ w);
2718 ev_periodic_start (EV_A_ w); 3741 ev_periodic_start (EV_A_ w);
2719} 3742}
… …
2721 3744
2722#ifndef SA_RESTART 3745#ifndef SA_RESTART
2723# define SA_RESTART 0 3746# define SA_RESTART 0
2724#endif 3747#endif
2725 3748
3749#if EV_SIGNAL_ENABLE
3750
2726void noinline 3751void noinline
2727ev_signal_start (EV_P_ ev_signal *w) 3752ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2728{ 3753{
2729 if (expect_false (ev_is_active (w))) 3754 if (expect_false (ev_is_active (w)))
2730 return; 3755 return;
2731 3756
2732 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3757 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2734#if EV_MULTIPLICITY 3759#if EV_MULTIPLICITY
2735 assert (("libev: a signal must not be attached to two different loops", 3760 assert (("libev: a signal must not be attached to two different loops",
2736 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3761 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2737 3762
2738 signals [w->signum - 1].loop = EV_A; 3763 signals [w->signum - 1].loop = EV_A;
3764 ECB_MEMORY_FENCE_RELEASE;
2739#endif 3765#endif
2740 3766
2741 EV_FREQUENT_CHECK; 3767 EV_FREQUENT_CHECK;
2742 3768
2743#if EV_USE_SIGNALFD 3769#if EV_USE_SIGNALFD
… …
2790 sa.sa_handler = ev_sighandler; 3816 sa.sa_handler = ev_sighandler;
2791 sigfillset (&sa.sa_mask); 3817 sigfillset (&sa.sa_mask);
2792 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3818 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2793 sigaction (w->signum, &sa, 0); 3819 sigaction (w->signum, &sa, 0);
2794 3820
3821 if (origflags & EVFLAG_NOSIGMASK)
3822 {
2795 sigemptyset (&sa.sa_mask); 3823 sigemptyset (&sa.sa_mask);
2796 sigaddset (&sa.sa_mask, w->signum); 3824 sigaddset (&sa.sa_mask, w->signum);
2797 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3825 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3826 }
2798#endif 3827#endif
2799 } 3828 }
2800 3829
2801 EV_FREQUENT_CHECK; 3830 EV_FREQUENT_CHECK;
2802} 3831}
2803 3832
2804void noinline 3833void noinline
2805ev_signal_stop (EV_P_ ev_signal *w) 3834ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2806{ 3835{
2807 clear_pending (EV_A_ (W)w); 3836 clear_pending (EV_A_ (W)w);
2808 if (expect_false (!ev_is_active (w))) 3837 if (expect_false (!ev_is_active (w)))
2809 return; 3838 return;
2810 3839
… …
2836 } 3865 }
2837 3866
2838 EV_FREQUENT_CHECK; 3867 EV_FREQUENT_CHECK;
2839} 3868}
2840 3869
3870#endif
3871
3872#if EV_CHILD_ENABLE
3873
2841void 3874void
2842ev_child_start (EV_P_ ev_child *w) 3875ev_child_start (EV_P_ ev_child *w) EV_THROW
2843{ 3876{
2844#if EV_MULTIPLICITY 3877#if EV_MULTIPLICITY
2845 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3878 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2846#endif 3879#endif
2847 if (expect_false (ev_is_active (w))) 3880 if (expect_false (ev_is_active (w)))
2848 return; 3881 return;
2849 3882
2850 EV_FREQUENT_CHECK; 3883 EV_FREQUENT_CHECK;
2851 3884
2852 ev_start (EV_A_ (W)w, 1); 3885 ev_start (EV_A_ (W)w, 1);
2853 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3886 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2854 3887
2855 EV_FREQUENT_CHECK; 3888 EV_FREQUENT_CHECK;
2856} 3889}
2857 3890
2858void 3891void
2859ev_child_stop (EV_P_ ev_child *w) 3892ev_child_stop (EV_P_ ev_child *w) EV_THROW
2860{ 3893{
2861 clear_pending (EV_A_ (W)w); 3894 clear_pending (EV_A_ (W)w);
2862 if (expect_false (!ev_is_active (w))) 3895 if (expect_false (!ev_is_active (w)))
2863 return; 3896 return;
2864 3897
2865 EV_FREQUENT_CHECK; 3898 EV_FREQUENT_CHECK;
2866 3899
2867 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3900 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2868 ev_stop (EV_A_ (W)w); 3901 ev_stop (EV_A_ (W)w);
2869 3902
2870 EV_FREQUENT_CHECK; 3903 EV_FREQUENT_CHECK;
2871} 3904}
3905
3906#endif
2872 3907
2873#if EV_STAT_ENABLE 3908#if EV_STAT_ENABLE
2874 3909
2875# ifdef _WIN32 3910# ifdef _WIN32
2876# undef lstat 3911# undef lstat
… …
2889# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3924# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2890 3925
2891static void noinline 3926static void noinline
2892infy_add (EV_P_ ev_stat *w) 3927infy_add (EV_P_ ev_stat *w)
2893{ 3928{
2894 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); 3929 w->wd = inotify_add_watch (fs_fd, w->path,
3930 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3931 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3932 | IN_DONT_FOLLOW | IN_MASK_ADD);
2895 3933
2896 if (w->wd >= 0) 3934 if (w->wd >= 0)
2897 { 3935 {
2898 struct statfs sfs; 3936 struct statfs sfs;
2899 3937
… …
2903 3941
2904 if (!fs_2625) 3942 if (!fs_2625)
2905 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3943 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2906 else if (!statfs (w->path, &sfs) 3944 else if (!statfs (w->path, &sfs)
2907 && (sfs.f_type == 0x1373 /* devfs */ 3945 && (sfs.f_type == 0x1373 /* devfs */
3946 || sfs.f_type == 0x4006 /* fat */
3947 || sfs.f_type == 0x4d44 /* msdos */
2908 || sfs.f_type == 0xEF53 /* ext2/3 */ 3948 || sfs.f_type == 0xEF53 /* ext2/3 */
3949 || sfs.f_type == 0x72b6 /* jffs2 */
3950 || sfs.f_type == 0x858458f6 /* ramfs */
3951 || sfs.f_type == 0x5346544e /* ntfs */
2909 || sfs.f_type == 0x3153464a /* jfs */ 3952 || sfs.f_type == 0x3153464a /* jfs */
3953 || sfs.f_type == 0x9123683e /* btrfs */
2910 || sfs.f_type == 0x52654973 /* reiser3 */ 3954 || sfs.f_type == 0x52654973 /* reiser3 */
2911 || sfs.f_type == 0x01021994 /* tempfs */ 3955 || sfs.f_type == 0x01021994 /* tmpfs */
2912 || sfs.f_type == 0x58465342 /* xfs */)) 3956 || sfs.f_type == 0x58465342 /* xfs */))
2913 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3957 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2914 else 3958 else
2915 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3959 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2916 } 3960 }
… …
2937 if (!pend || pend == path) 3981 if (!pend || pend == path)
2938 break; 3982 break;
2939 3983
2940 *pend = 0; 3984 *pend = 0;
2941 w->wd = inotify_add_watch (fs_fd, path, mask); 3985 w->wd = inotify_add_watch (fs_fd, path, mask);
2942 } 3986 }
2943 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3987 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2944 } 3988 }
2945 } 3989 }
2946 3990
2947 if (w->wd >= 0) 3991 if (w->wd >= 0)
2948 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3992 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2949 3993
2950 /* now re-arm timer, if required */ 3994 /* now re-arm timer, if required */
2951 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3995 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2952 ev_timer_again (EV_A_ &w->timer); 3996 ev_timer_again (EV_A_ &w->timer);
2953 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3997 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2961 4005
2962 if (wd < 0) 4006 if (wd < 0)
2963 return; 4007 return;
2964 4008
2965 w->wd = -2; 4009 w->wd = -2;
2966 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 4010 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2967 wlist_del (&fs_hash [slot].head, (WL)w); 4011 wlist_del (&fs_hash [slot].head, (WL)w);
2968 4012
2969 /* remove this watcher, if others are watching it, they will rearm */ 4013 /* remove this watcher, if others are watching it, they will rearm */
2970 inotify_rm_watch (fs_fd, wd); 4014 inotify_rm_watch (fs_fd, wd);
2971} 4015}
… …
2973static void noinline 4017static void noinline
2974infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4018infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2975{ 4019{
2976 if (slot < 0) 4020 if (slot < 0)
2977 /* overflow, need to check for all hash slots */ 4021 /* overflow, need to check for all hash slots */
2978 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4022 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2979 infy_wd (EV_A_ slot, wd, ev); 4023 infy_wd (EV_A_ slot, wd, ev);
2980 else 4024 else
2981 { 4025 {
2982 WL w_; 4026 WL w_;
2983 4027
2984 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 4028 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2985 { 4029 {
2986 ev_stat *w = (ev_stat *)w_; 4030 ev_stat *w = (ev_stat *)w_;
2987 w_ = w_->next; /* lets us remove this watcher and all before it */ 4031 w_ = w_->next; /* lets us remove this watcher and all before it */
2988 4032
2989 if (w->wd == wd || wd == -1) 4033 if (w->wd == wd || wd == -1)
2990 { 4034 {
2991 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 4035 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2992 { 4036 {
2993 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4037 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2994 w->wd = -1; 4038 w->wd = -1;
2995 infy_add (EV_A_ w); /* re-add, no matter what */ 4039 infy_add (EV_A_ w); /* re-add, no matter what */
2996 } 4040 }
2997 4041
2998 stat_timer_cb (EV_A_ &w->timer, 0); 4042 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3014 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4058 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3015 ofs += sizeof (struct inotify_event) + ev->len; 4059 ofs += sizeof (struct inotify_event) + ev->len;
3016 } 4060 }
3017} 4061}
3018 4062
3019inline_size unsigned int
3020ev_linux_version (void)
3021{
3022 struct utsname buf;
3023 unsigned int v;
3024 int i;
3025 char *p = buf.release;
3026
3027 if (uname (&buf))
3028 return 0;
3029
3030 for (i = 3+1; --i; )
3031 {
3032 unsigned int c = 0;
3033
3034 for (;;)
3035 {
3036 if (*p >= '0' && *p <= '9')
3037 c = c * 10 + *p++ - '0';
3038 else
3039 {
3040 p += *p == '.';
3041 break;
3042 }
3043 }
3044
3045 v = (v << 8) | c;
3046 }
3047
3048 return v;
3049}
3050
3051inline_size void 4063inline_size void ecb_cold
3052ev_check_2625 (EV_P) 4064ev_check_2625 (EV_P)
3053{ 4065{
3054 /* kernels < 2.6.25 are borked 4066 /* kernels < 2.6.25 are borked
3055 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4067 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3056 */ 4068 */
… …
3061} 4073}
3062 4074
3063inline_size int 4075inline_size int
3064infy_newfd (void) 4076infy_newfd (void)
3065{ 4077{
3066#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4078#if defined IN_CLOEXEC && defined IN_NONBLOCK
3067 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4079 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3068 if (fd >= 0) 4080 if (fd >= 0)
3069 return fd; 4081 return fd;
3070#endif 4082#endif
3071 return inotify_init (); 4083 return inotify_init ();
… …
3112 ev_io_set (&fs_w, fs_fd, EV_READ); 4124 ev_io_set (&fs_w, fs_fd, EV_READ);
3113 ev_io_start (EV_A_ &fs_w); 4125 ev_io_start (EV_A_ &fs_w);
3114 ev_unref (EV_A); 4126 ev_unref (EV_A);
3115 } 4127 }
3116 4128
3117 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4129 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3118 { 4130 {
3119 WL w_ = fs_hash [slot].head; 4131 WL w_ = fs_hash [slot].head;
3120 fs_hash [slot].head = 0; 4132 fs_hash [slot].head = 0;
3121 4133
3122 while (w_) 4134 while (w_)
… …
3146#else 4158#else
3147# define EV_LSTAT(p,b) lstat (p, b) 4159# define EV_LSTAT(p,b) lstat (p, b)
3148#endif 4160#endif
3149 4161
3150void 4162void
3151ev_stat_stat (EV_P_ ev_stat *w) 4163ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3152{ 4164{
3153 if (lstat (w->path, &w->attr) < 0) 4165 if (lstat (w->path, &w->attr) < 0)
3154 w->attr.st_nlink = 0; 4166 w->attr.st_nlink = 0;
3155 else if (!w->attr.st_nlink) 4167 else if (!w->attr.st_nlink)
3156 w->attr.st_nlink = 1; 4168 w->attr.st_nlink = 1;
… …
3195 ev_feed_event (EV_A_ w, EV_STAT); 4207 ev_feed_event (EV_A_ w, EV_STAT);
3196 } 4208 }
3197} 4209}
3198 4210
3199void 4211void
3200ev_stat_start (EV_P_ ev_stat *w) 4212ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3201{ 4213{
3202 if (expect_false (ev_is_active (w))) 4214 if (expect_false (ev_is_active (w)))
3203 return; 4215 return;
3204 4216
3205 ev_stat_stat (EV_A_ w); 4217 ev_stat_stat (EV_A_ w);
… …
3226 4238
3227 EV_FREQUENT_CHECK; 4239 EV_FREQUENT_CHECK;
3228} 4240}
3229 4241
3230void 4242void
3231ev_stat_stop (EV_P_ ev_stat *w) 4243ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3232{ 4244{
3233 clear_pending (EV_A_ (W)w); 4245 clear_pending (EV_A_ (W)w);
3234 if (expect_false (!ev_is_active (w))) 4246 if (expect_false (!ev_is_active (w)))
3235 return; 4247 return;
3236 4248
… …
3252} 4264}
3253#endif 4265#endif
3254 4266
3255#if EV_IDLE_ENABLE 4267#if EV_IDLE_ENABLE
3256void 4268void
3257ev_idle_start (EV_P_ ev_idle *w) 4269ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3258{ 4270{
3259 if (expect_false (ev_is_active (w))) 4271 if (expect_false (ev_is_active (w)))
3260 return; 4272 return;
3261 4273
3262 pri_adjust (EV_A_ (W)w); 4274 pri_adjust (EV_A_ (W)w);
… …
3275 4287
3276 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3277} 4289}
3278 4290
3279void 4291void
3280ev_idle_stop (EV_P_ ev_idle *w) 4292ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3281{ 4293{
3282 clear_pending (EV_A_ (W)w); 4294 clear_pending (EV_A_ (W)w);
3283 if (expect_false (!ev_is_active (w))) 4295 if (expect_false (!ev_is_active (w)))
3284 return; 4296 return;
3285 4297
… …
3297 4309
3298 EV_FREQUENT_CHECK; 4310 EV_FREQUENT_CHECK;
3299} 4311}
3300#endif 4312#endif
3301 4313
4314#if EV_PREPARE_ENABLE
3302void 4315void
3303ev_prepare_start (EV_P_ ev_prepare *w) 4316ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3304{ 4317{
3305 if (expect_false (ev_is_active (w))) 4318 if (expect_false (ev_is_active (w)))
3306 return; 4319 return;
3307 4320
3308 EV_FREQUENT_CHECK; 4321 EV_FREQUENT_CHECK;
… …
3313 4326
3314 EV_FREQUENT_CHECK; 4327 EV_FREQUENT_CHECK;
3315} 4328}
3316 4329
3317void 4330void
3318ev_prepare_stop (EV_P_ ev_prepare *w) 4331ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3319{ 4332{
3320 clear_pending (EV_A_ (W)w); 4333 clear_pending (EV_A_ (W)w);
3321 if (expect_false (!ev_is_active (w))) 4334 if (expect_false (!ev_is_active (w)))
3322 return; 4335 return;
3323 4336
… …
3332 4345
3333 ev_stop (EV_A_ (W)w); 4346 ev_stop (EV_A_ (W)w);
3334 4347
3335 EV_FREQUENT_CHECK; 4348 EV_FREQUENT_CHECK;
3336} 4349}
4350#endif
3337 4351
4352#if EV_CHECK_ENABLE
3338void 4353void
3339ev_check_start (EV_P_ ev_check *w) 4354ev_check_start (EV_P_ ev_check *w) EV_THROW
3340{ 4355{
3341 if (expect_false (ev_is_active (w))) 4356 if (expect_false (ev_is_active (w)))
3342 return; 4357 return;
3343 4358
3344 EV_FREQUENT_CHECK; 4359 EV_FREQUENT_CHECK;
… …
3349 4364
3350 EV_FREQUENT_CHECK; 4365 EV_FREQUENT_CHECK;
3351} 4366}
3352 4367
3353void 4368void
3354ev_check_stop (EV_P_ ev_check *w) 4369ev_check_stop (EV_P_ ev_check *w) EV_THROW
3355{ 4370{
3356 clear_pending (EV_A_ (W)w); 4371 clear_pending (EV_A_ (W)w);
3357 if (expect_false (!ev_is_active (w))) 4372 if (expect_false (!ev_is_active (w)))
3358 return; 4373 return;
3359 4374
… …
3368 4383
3369 ev_stop (EV_A_ (W)w); 4384 ev_stop (EV_A_ (W)w);
3370 4385
3371 EV_FREQUENT_CHECK; 4386 EV_FREQUENT_CHECK;
3372} 4387}
4388#endif
3373 4389
3374#if EV_EMBED_ENABLE 4390#if EV_EMBED_ENABLE
3375void noinline 4391void noinline
3376ev_embed_sweep (EV_P_ ev_embed *w) 4392ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3377{ 4393{
3378 ev_loop (w->other, EVLOOP_NONBLOCK); 4394 ev_run (w->other, EVRUN_NOWAIT);
3379} 4395}
3380 4396
3381static void 4397static void
3382embed_io_cb (EV_P_ ev_io *io, int revents) 4398embed_io_cb (EV_P_ ev_io *io, int revents)
3383{ 4399{
3384 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4400 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3385 4401
3386 if (ev_cb (w)) 4402 if (ev_cb (w))
3387 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4403 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3388 else 4404 else
3389 ev_loop (w->other, EVLOOP_NONBLOCK); 4405 ev_run (w->other, EVRUN_NOWAIT);
3390} 4406}
3391 4407
3392static void 4408static void
3393embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4409embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3394{ 4410{
… …
3398 EV_P = w->other; 4414 EV_P = w->other;
3399 4415
3400 while (fdchangecnt) 4416 while (fdchangecnt)
3401 { 4417 {
3402 fd_reify (EV_A); 4418 fd_reify (EV_A);
3403 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4419 ev_run (EV_A_ EVRUN_NOWAIT);
3404 } 4420 }
3405 } 4421 }
3406} 4422}
3407 4423
3408static void 4424static void
… …
3414 4430
3415 { 4431 {
3416 EV_P = w->other; 4432 EV_P = w->other;
3417 4433
3418 ev_loop_fork (EV_A); 4434 ev_loop_fork (EV_A);
3419 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4435 ev_run (EV_A_ EVRUN_NOWAIT);
3420 } 4436 }
3421 4437
3422 ev_embed_start (EV_A_ w); 4438 ev_embed_start (EV_A_ w);
3423} 4439}
3424 4440
… …
3429 ev_idle_stop (EV_A_ idle); 4445 ev_idle_stop (EV_A_ idle);
3430} 4446}
3431#endif 4447#endif
3432 4448
3433void 4449void
3434ev_embed_start (EV_P_ ev_embed *w) 4450ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3435{ 4451{
3436 if (expect_false (ev_is_active (w))) 4452 if (expect_false (ev_is_active (w)))
3437 return; 4453 return;
3438 4454
3439 { 4455 {
… …
3460 4476
3461 EV_FREQUENT_CHECK; 4477 EV_FREQUENT_CHECK;
3462} 4478}
3463 4479
3464void 4480void
3465ev_embed_stop (EV_P_ ev_embed *w) 4481ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3466{ 4482{
3467 clear_pending (EV_A_ (W)w); 4483 clear_pending (EV_A_ (W)w);
3468 if (expect_false (!ev_is_active (w))) 4484 if (expect_false (!ev_is_active (w)))
3469 return; 4485 return;
3470 4486
… …
3480} 4496}
3481#endif 4497#endif
3482 4498
3483#if EV_FORK_ENABLE 4499#if EV_FORK_ENABLE
3484void 4500void
3485ev_fork_start (EV_P_ ev_fork *w) 4501ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3486{ 4502{
3487 if (expect_false (ev_is_active (w))) 4503 if (expect_false (ev_is_active (w)))
3488 return; 4504 return;
3489 4505
3490 EV_FREQUENT_CHECK; 4506 EV_FREQUENT_CHECK;
… …
3495 4511
3496 EV_FREQUENT_CHECK; 4512 EV_FREQUENT_CHECK;
3497} 4513}
3498 4514
3499void 4515void
3500ev_fork_stop (EV_P_ ev_fork *w) 4516ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3501{ 4517{
3502 clear_pending (EV_A_ (W)w); 4518 clear_pending (EV_A_ (W)w);
3503 if (expect_false (!ev_is_active (w))) 4519 if (expect_false (!ev_is_active (w)))
3504 return; 4520 return;
3505 4521
… …
3516 4532
3517 EV_FREQUENT_CHECK; 4533 EV_FREQUENT_CHECK;
3518} 4534}
3519#endif 4535#endif
3520 4536
4537#if EV_CLEANUP_ENABLE
4538void
4539ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4540{
4541 if (expect_false (ev_is_active (w)))
4542 return;
4543
4544 EV_FREQUENT_CHECK;
4545
4546 ev_start (EV_A_ (W)w, ++cleanupcnt);
4547 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4548 cleanups [cleanupcnt - 1] = w;
4549
4550 /* cleanup watchers should never keep a refcount on the loop */
4551 ev_unref (EV_A);
4552 EV_FREQUENT_CHECK;
4553}
4554
4555void
4556ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4557{
4558 clear_pending (EV_A_ (W)w);
4559 if (expect_false (!ev_is_active (w)))
4560 return;
4561
4562 EV_FREQUENT_CHECK;
4563 ev_ref (EV_A);
4564
4565 {
4566 int active = ev_active (w);
4567
4568 cleanups [active - 1] = cleanups [--cleanupcnt];
4569 ev_active (cleanups [active - 1]) = active;
4570 }
4571
4572 ev_stop (EV_A_ (W)w);
4573
4574 EV_FREQUENT_CHECK;
4575}
4576#endif
4577
3521#if EV_ASYNC_ENABLE 4578#if EV_ASYNC_ENABLE
3522void 4579void
3523ev_async_start (EV_P_ ev_async *w) 4580ev_async_start (EV_P_ ev_async *w) EV_THROW
3524{ 4581{
3525 if (expect_false (ev_is_active (w))) 4582 if (expect_false (ev_is_active (w)))
3526 return; 4583 return;
4584
4585 w->sent = 0;
3527 4586
3528 evpipe_init (EV_A); 4587 evpipe_init (EV_A);
3529 4588
3530 EV_FREQUENT_CHECK; 4589 EV_FREQUENT_CHECK;
3531 4590
… …
3535 4594
3536 EV_FREQUENT_CHECK; 4595 EV_FREQUENT_CHECK;
3537} 4596}
3538 4597
3539void 4598void
3540ev_async_stop (EV_P_ ev_async *w) 4599ev_async_stop (EV_P_ ev_async *w) EV_THROW
3541{ 4600{
3542 clear_pending (EV_A_ (W)w); 4601 clear_pending (EV_A_ (W)w);
3543 if (expect_false (!ev_is_active (w))) 4602 if (expect_false (!ev_is_active (w)))
3544 return; 4603 return;
3545 4604
… …
3556 4615
3557 EV_FREQUENT_CHECK; 4616 EV_FREQUENT_CHECK;
3558} 4617}
3559 4618
3560void 4619void
3561ev_async_send (EV_P_ ev_async *w) 4620ev_async_send (EV_P_ ev_async *w) EV_THROW
3562{ 4621{
3563 w->sent = 1; 4622 w->sent = 1;
3564 evpipe_write (EV_A_ &async_pending); 4623 evpipe_write (EV_A_ &async_pending);
3565} 4624}
3566#endif 4625#endif
… …
3603 4662
3604 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4663 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3605} 4664}
3606 4665
3607void 4666void
3608ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4667ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3609{ 4668{
3610 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4669 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3611 4670
3612 if (expect_false (!once)) 4671 if (expect_false (!once))
3613 { 4672 {
3614 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4673 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3615 return; 4674 return;
3616 } 4675 }
3617 4676
3618 once->cb = cb; 4677 once->cb = cb;
3619 once->arg = arg; 4678 once->arg = arg;
… …
3634} 4693}
3635 4694
3636/*****************************************************************************/ 4695/*****************************************************************************/
3637 4696
3638#if EV_WALK_ENABLE 4697#if EV_WALK_ENABLE
3639void 4698void ecb_cold
3640ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4699ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3641{ 4700{
3642 int i, j; 4701 int i, j;
3643 ev_watcher_list *wl, *wn; 4702 ev_watcher_list *wl, *wn;
3644 4703
3645 if (types & (EV_IO | EV_EMBED)) 4704 if (types & (EV_IO | EV_EMBED))
… …
3688 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4747 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3689#endif 4748#endif
3690 4749
3691#if EV_IDLE_ENABLE 4750#if EV_IDLE_ENABLE
3692 if (types & EV_IDLE) 4751 if (types & EV_IDLE)
3693 for (j = NUMPRI; i--; ) 4752 for (j = NUMPRI; j--; )
3694 for (i = idlecnt [j]; i--; ) 4753 for (i = idlecnt [j]; i--; )
3695 cb (EV_A_ EV_IDLE, idles [j][i]); 4754 cb (EV_A_ EV_IDLE, idles [j][i]);
3696#endif 4755#endif
3697 4756
3698#if EV_FORK_ENABLE 4757#if EV_FORK_ENABLE
… …
3706 if (types & EV_ASYNC) 4765 if (types & EV_ASYNC)
3707 for (i = asynccnt; i--; ) 4766 for (i = asynccnt; i--; )
3708 cb (EV_A_ EV_ASYNC, asyncs [i]); 4767 cb (EV_A_ EV_ASYNC, asyncs [i]);
3709#endif 4768#endif
3710 4769
4770#if EV_PREPARE_ENABLE
3711 if (types & EV_PREPARE) 4771 if (types & EV_PREPARE)
3712 for (i = preparecnt; i--; ) 4772 for (i = preparecnt; i--; )
3713#if EV_EMBED_ENABLE 4773# if EV_EMBED_ENABLE
3714 if (ev_cb (prepares [i]) != embed_prepare_cb) 4774 if (ev_cb (prepares [i]) != embed_prepare_cb)
3715#endif 4775# endif
3716 cb (EV_A_ EV_PREPARE, prepares [i]); 4776 cb (EV_A_ EV_PREPARE, prepares [i]);
4777#endif
3717 4778
4779#if EV_CHECK_ENABLE
3718 if (types & EV_CHECK) 4780 if (types & EV_CHECK)
3719 for (i = checkcnt; i--; ) 4781 for (i = checkcnt; i--; )
3720 cb (EV_A_ EV_CHECK, checks [i]); 4782 cb (EV_A_ EV_CHECK, checks [i]);
4783#endif
3721 4784
4785#if EV_SIGNAL_ENABLE
3722 if (types & EV_SIGNAL) 4786 if (types & EV_SIGNAL)
3723 for (i = 0; i < EV_NSIG - 1; ++i) 4787 for (i = 0; i < EV_NSIG - 1; ++i)
3724 for (wl = signals [i].head; wl; ) 4788 for (wl = signals [i].head; wl; )
3725 { 4789 {
3726 wn = wl->next; 4790 wn = wl->next;
3727 cb (EV_A_ EV_SIGNAL, wl); 4791 cb (EV_A_ EV_SIGNAL, wl);
3728 wl = wn; 4792 wl = wn;
3729 } 4793 }
4794#endif
3730 4795
4796#if EV_CHILD_ENABLE
3731 if (types & EV_CHILD) 4797 if (types & EV_CHILD)
3732 for (i = EV_PID_HASHSIZE; i--; ) 4798 for (i = (EV_PID_HASHSIZE); i--; )
3733 for (wl = childs [i]; wl; ) 4799 for (wl = childs [i]; wl; )
3734 { 4800 {
3735 wn = wl->next; 4801 wn = wl->next;
3736 cb (EV_A_ EV_CHILD, wl); 4802 cb (EV_A_ EV_CHILD, wl);
3737 wl = wn; 4803 wl = wn;
3738 } 4804 }
4805#endif
3739/* EV_STAT 0x00001000 /* stat data changed */ 4806/* EV_STAT 0x00001000 /* stat data changed */
3740/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4807/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3741} 4808}
3742#endif 4809#endif
3743 4810
3744#if EV_MULTIPLICITY 4811#if EV_MULTIPLICITY
3745 #include "ev_wrap.h" 4812 #include "ev_wrap.h"
3746#endif 4813#endif
3747 4814
3748#ifdef __cplusplus
3749}
3750#endif
3751

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