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Comparing libev/ev.c (file contents):
Revision 1.332 by root, Tue Mar 9 08:58:17 2010 UTC vs.
Revision 1.459 by root, Tue Oct 29 12:13:37 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# define EV_NSIG (8 * sizeof (sigset_t) + 1)
217/* to make it compile regardless, just remove the above line */ 247#endif
218# define EV_NSIG 65 248
249#ifndef EV_USE_FLOOR
250# define EV_USE_FLOOR 0
219#endif 251#endif
220 252
221#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
222# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ >= 2
223# define EV_USE_CLOCK_SYSCALL 1 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
224# else 256# else
225# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
226# endif 258# endif
227#endif 259#endif
228 260
229#ifndef EV_USE_MONOTONIC 261#ifndef EV_USE_MONOTONIC
230# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
231# define EV_USE_MONOTONIC 1 263# define EV_USE_MONOTONIC EV_FEATURE_OS
232# else 264# else
233# define EV_USE_MONOTONIC 0 265# define EV_USE_MONOTONIC 0
234# endif 266# endif
235#endif 267#endif
236 268
… …
238# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 270# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239#endif 271#endif
240 272
241#ifndef EV_USE_NANOSLEEP 273#ifndef EV_USE_NANOSLEEP
242# if _POSIX_C_SOURCE >= 199309L 274# if _POSIX_C_SOURCE >= 199309L
243# define EV_USE_NANOSLEEP 1 275# define EV_USE_NANOSLEEP EV_FEATURE_OS
244# else 276# else
245# define EV_USE_NANOSLEEP 0 277# define EV_USE_NANOSLEEP 0
246# endif 278# endif
247#endif 279#endif
248 280
249#ifndef EV_USE_SELECT 281#ifndef EV_USE_SELECT
250# define EV_USE_SELECT 1 282# define EV_USE_SELECT EV_FEATURE_BACKENDS
251#endif 283#endif
252 284
253#ifndef EV_USE_POLL 285#ifndef EV_USE_POLL
254# ifdef _WIN32 286# ifdef _WIN32
255# define EV_USE_POLL 0 287# define EV_USE_POLL 0
256# else 288# else
257# define EV_USE_POLL 1 289# define EV_USE_POLL EV_FEATURE_BACKENDS
258# endif 290# endif
259#endif 291#endif
260 292
261#ifndef EV_USE_EPOLL 293#ifndef EV_USE_EPOLL
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263# define EV_USE_EPOLL 1 295# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264# else 296# else
265# define EV_USE_EPOLL 0 297# define EV_USE_EPOLL 0
266# endif 298# endif
267#endif 299#endif
268 300
… …
274# define EV_USE_PORT 0 306# define EV_USE_PORT 0
275#endif 307#endif
276 308
277#ifndef EV_USE_INOTIFY 309#ifndef EV_USE_INOTIFY
278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279# define EV_USE_INOTIFY 1 311# define EV_USE_INOTIFY EV_FEATURE_OS
280# else 312# else
281# define EV_USE_INOTIFY 0 313# define EV_USE_INOTIFY 0
282# endif 314# endif
283#endif 315#endif
284 316
285#ifndef EV_PID_HASHSIZE 317#ifndef EV_PID_HASHSIZE
286# if EV_MINIMAL 318# 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 319#endif
292 320
293#ifndef EV_INOTIFY_HASHSIZE 321#ifndef EV_INOTIFY_HASHSIZE
294# if EV_MINIMAL 322# 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 323#endif
300 324
301#ifndef EV_USE_EVENTFD 325#ifndef EV_USE_EVENTFD
302# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 326# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303# define EV_USE_EVENTFD 1 327# define EV_USE_EVENTFD EV_FEATURE_OS
304# else 328# else
305# define EV_USE_EVENTFD 0 329# define EV_USE_EVENTFD 0
306# endif 330# endif
307#endif 331#endif
308 332
309#ifndef EV_USE_SIGNALFD 333#ifndef EV_USE_SIGNALFD
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 334# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311# define EV_USE_SIGNALFD 1 335# define EV_USE_SIGNALFD EV_FEATURE_OS
312# else 336# else
313# define EV_USE_SIGNALFD 0 337# define EV_USE_SIGNALFD 0
314# endif 338# endif
315#endif 339#endif
316 340
… …
319# define EV_USE_4HEAP 1 343# define EV_USE_4HEAP 1
320# define EV_HEAP_CACHE_AT 1 344# define EV_HEAP_CACHE_AT 1
321#endif 345#endif
322 346
323#ifndef EV_VERIFY 347#ifndef EV_VERIFY
324# define EV_VERIFY !EV_MINIMAL 348# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325#endif 349#endif
326 350
327#ifndef EV_USE_4HEAP 351#ifndef EV_USE_4HEAP
328# define EV_USE_4HEAP !EV_MINIMAL 352# define EV_USE_4HEAP EV_FEATURE_DATA
329#endif 353#endif
330 354
331#ifndef EV_HEAP_CACHE_AT 355#ifndef EV_HEAP_CACHE_AT
332# define EV_HEAP_CACHE_AT !EV_MINIMAL 356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357#endif
358
359#ifdef ANDROID
360/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT
362# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL
365# define EV_USE_CLOCK_SYSCALL 0
366#endif
367
368/* aix's poll.h seems to cause lots of trouble */
369#ifdef _AIX
370/* AIX has a completely broken poll.h header */
371# undef EV_USE_POLL
372# define EV_USE_POLL 0
333#endif 373#endif
334 374
335/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 375/* 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. */ 376/* which makes programs even slower. might work on other unices, too. */
337#if EV_USE_CLOCK_SYSCALL 377#if EV_USE_CLOCK_SYSCALL
338# include <syscall.h> 378# include <sys/syscall.h>
339# ifdef SYS_clock_gettime 379# ifdef SYS_clock_gettime
340# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 380# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
341# undef EV_USE_MONOTONIC 381# undef EV_USE_MONOTONIC
342# define EV_USE_MONOTONIC 1 382# define EV_USE_MONOTONIC 1
343# else 383# else
… …
346# endif 386# endif
347#endif 387#endif
348 388
349/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 389/* this block fixes any misconfiguration where we know we run into trouble otherwise */
350 390
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 391#ifndef CLOCK_MONOTONIC
358# undef EV_USE_MONOTONIC 392# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 0 393# define EV_USE_MONOTONIC 0
360#endif 394#endif
361 395
… …
368# undef EV_USE_INOTIFY 402# undef EV_USE_INOTIFY
369# define EV_USE_INOTIFY 0 403# define EV_USE_INOTIFY 0
370#endif 404#endif
371 405
372#if !EV_USE_NANOSLEEP 406#if !EV_USE_NANOSLEEP
373# ifndef _WIN32 407/* hp-ux has it in sys/time.h, which we unconditionally include above */
408# if !defined _WIN32 && !defined __hpux
374# include <sys/select.h> 409# include <sys/select.h>
375# endif 410# endif
376#endif 411#endif
377 412
378#if EV_USE_INOTIFY 413#if EV_USE_INOTIFY
379# include <sys/utsname.h>
380# include <sys/statfs.h> 414# include <sys/statfs.h>
381# include <sys/inotify.h> 415# include <sys/inotify.h>
382/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 416/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
383# ifndef IN_DONT_FOLLOW 417# ifndef IN_DONT_FOLLOW
384# undef EV_USE_INOTIFY 418# undef EV_USE_INOTIFY
385# define EV_USE_INOTIFY 0 419# define EV_USE_INOTIFY 0
386# endif 420# endif
387#endif
388
389#if EV_SELECT_IS_WINSOCKET
390# include <winsock.h>
391#endif 421#endif
392 422
393#if EV_USE_EVENTFD 423#if EV_USE_EVENTFD
394/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 424/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
395# include <stdint.h> 425# include <stdint.h>
… …
401# define EFD_CLOEXEC O_CLOEXEC 431# define EFD_CLOEXEC O_CLOEXEC
402# else 432# else
403# define EFD_CLOEXEC 02000000 433# define EFD_CLOEXEC 02000000
404# endif 434# endif
405# endif 435# endif
406# ifdef __cplusplus
407extern "C" {
408# endif
409int (eventfd) (unsigned int initval, int flags); 436EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410# ifdef __cplusplus
411}
412# endif
413#endif 437#endif
414 438
415#if EV_USE_SIGNALFD 439#if EV_USE_SIGNALFD
416/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 440/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
417# include <stdint.h> 441# include <stdint.h>
… …
423# define SFD_CLOEXEC O_CLOEXEC 447# define SFD_CLOEXEC O_CLOEXEC
424# else 448# else
425# define SFD_CLOEXEC 02000000 449# define SFD_CLOEXEC 02000000
426# endif 450# endif
427# endif 451# endif
428# ifdef __cplusplus
429extern "C" {
430# endif
431int signalfd (int fd, const sigset_t *mask, int flags); 452EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
432 453
433struct signalfd_siginfo 454struct signalfd_siginfo
434{ 455{
435 uint32_t ssi_signo; 456 uint32_t ssi_signo;
436 char pad[128 - sizeof (uint32_t)]; 457 char pad[128 - sizeof (uint32_t)];
437}; 458};
438# ifdef __cplusplus
439}
440# endif 459#endif
441#endif
442
443 460
444/**/ 461/**/
445 462
446#if EV_VERIFY >= 3 463#if EV_VERIFY >= 3
447# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 464# define EV_FREQUENT_CHECK ev_verify (EV_A)
448#else 465#else
449# define EV_FREQUENT_CHECK do { } while (0) 466# define EV_FREQUENT_CHECK do { } while (0)
450#endif 467#endif
451 468
452/* 469/*
453 * This is used to avoid floating point rounding problems. 470 * 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. 471 * This value is good at least till the year 4000.
458 * Better solutions welcome.
459 */ 472 */
460#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 473#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
474/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
461 475
462#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 476#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) */ 477#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
464 478
479#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
480#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
481
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */
484/*
485 * libecb - http://software.schmorp.de/pkg/libecb
486 *
487 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved.
490 *
491 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met:
493 *
494 * 1. Redistributions of source code must retain the above copyright notice,
495 * this list of conditions and the following disclaimer.
496 *
497 * 2. Redistributions in binary form must reproduce the above copyright
498 * notice, this list of conditions and the following disclaimer in the
499 * documentation and/or other materials provided with the distribution.
500 *
501 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
502 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
503 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
504 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
505 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
506 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
509 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510 * OF THE POSSIBILITY OF SUCH DAMAGE.
511 */
512
513#ifndef ECB_H
514#define ECB_H
515
516/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003
518
519#ifdef _WIN32
520 typedef signed char int8_t;
521 typedef unsigned char uint8_t;
522 typedef signed short int16_t;
523 typedef unsigned short uint16_t;
524 typedef signed int int32_t;
525 typedef unsigned int uint32_t;
465#if __GNUC__ >= 4 526 #if __GNUC__
466# define expect(expr,value) __builtin_expect ((expr),(value)) 527 typedef signed long long int64_t;
467# define noinline __attribute__ ((noinline)) 528 typedef unsigned long long uint64_t;
529 #else /* _MSC_VER || __BORLANDC__ */
530 typedef signed __int64 int64_t;
531 typedef unsigned __int64 uint64_t;
532 #endif
533 #ifdef _WIN64
534 #define ECB_PTRSIZE 8
535 typedef uint64_t uintptr_t;
536 typedef int64_t intptr_t;
537 #else
538 #define ECB_PTRSIZE 4
539 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t;
541 #endif
468#else 542#else
469# define expect(expr,value) (expr) 543 #include <inttypes.h>
470# define noinline 544 #if UINTMAX_MAX > 0xffffffffU
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 545 #define ECB_PTRSIZE 8
472# define inline 546 #else
547 #define ECB_PTRSIZE 4
548 #endif
473# endif 549#endif
550
551/* work around x32 idiocy by defining proper macros */
552#if __x86_64 || _M_AMD64
553 #if _ILP32
554 #define ECB_AMD64_X32 1
555 #else
556 #define ECB_AMD64 1
474#endif 557 #endif
558#endif
475 559
560/* many compilers define _GNUC_ to some versions but then only implement
561 * what their idiot authors think are the "more important" extensions,
562 * causing enormous grief in return for some better fake benchmark numbers.
563 * or so.
564 * we try to detect these and simply assume they are not gcc - if they have
565 * an issue with that they should have done it right in the first place.
566 */
567#ifndef ECB_GCC_VERSION
568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
569 #define ECB_GCC_VERSION(major,minor) 0
570 #else
571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572 #endif
573#endif
574
575#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
576#define ECB_C99 (__STDC_VERSION__ >= 199901L)
577#define ECB_C11 (__STDC_VERSION__ >= 201112L)
578#define ECB_CPP (__cplusplus+0)
579#define ECB_CPP11 (__cplusplus >= 201103L)
580
581#if ECB_CPP
582 #define ECB_EXTERN_C extern "C"
583 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584 #define ECB_EXTERN_C_END }
585#else
586 #define ECB_EXTERN_C extern
587 #define ECB_EXTERN_C_BEG
588 #define ECB_EXTERN_C_END
589#endif
590
591/*****************************************************************************/
592
593/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
594/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
595
596#if ECB_NO_THREADS
597 #define ECB_NO_SMP 1
598#endif
599
600#if ECB_NO_SMP
601 #define ECB_MEMORY_FENCE do { } while (0)
602#endif
603
604#ifndef ECB_MEMORY_FENCE
605 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
606 #if __i386 || __i386__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
614 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
616 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
619 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
622 #elif __sparc || __sparc__
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
624 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626 #elif defined __s390__ || defined __s390x__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
628 #elif defined __mips__
629 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
630 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
631 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
632 #elif defined __alpha__
633 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
634 #elif defined __hppa__
635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
636 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
637 #elif defined __ia64__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
639 #elif defined __m68k__
640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
641 #elif defined __m88k__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
643 #elif defined __sh__
644 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
645 #endif
646 #endif
647#endif
648
649#ifndef ECB_MEMORY_FENCE
650 #if ECB_GCC_VERSION(4,7)
651 /* see comment below (stdatomic.h) about the C11 memory model. */
652 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
653
654 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
655 * without risking compile time errors with other compilers. We *could*
656 * define our own ecb_clang_has_feature, but I just can't be bothered to work
657 * around this shit time and again.
658 * #elif defined __clang && __has_feature (cxx_atomic)
659 * // see comment below (stdatomic.h) about the C11 memory model.
660 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661 */
662
663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664 #define ECB_MEMORY_FENCE __sync_synchronize ()
665 #elif _MSC_VER >= 1400 /* VC++ 2005 */
666 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
667 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
668 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
669 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
670 #elif defined _WIN32
671 #include <WinNT.h>
672 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
673 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
674 #include <mbarrier.h>
675 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
676 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
677 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
678 #elif __xlC__
679 #define ECB_MEMORY_FENCE __sync ()
680 #endif
681#endif
682
683#ifndef ECB_MEMORY_FENCE
684 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
685 /* we assume that these memory fences work on all variables/all memory accesses, */
686 /* not just C11 atomics and atomic accesses */
687 #include <stdatomic.h>
688 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
689 /* any fence other than seq_cst, which isn't very efficient for us. */
690 /* Why that is, we don't know - either the C11 memory model is quite useless */
691 /* for most usages, or gcc and clang have a bug */
692 /* I *currently* lean towards the latter, and inefficiently implement */
693 /* all three of ecb's fences as a seq_cst fence */
694 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
695 #endif
696#endif
697
698#ifndef ECB_MEMORY_FENCE
699 #if !ECB_AVOID_PTHREADS
700 /*
701 * if you get undefined symbol references to pthread_mutex_lock,
702 * or failure to find pthread.h, then you should implement
703 * the ECB_MEMORY_FENCE operations for your cpu/compiler
704 * OR provide pthread.h and link against the posix thread library
705 * of your system.
706 */
707 #include <pthread.h>
708 #define ECB_NEEDS_PTHREADS 1
709 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
710
711 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
712 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
713 #endif
714#endif
715
716#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
717 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
718#endif
719
720#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
721 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
722#endif
723
724/*****************************************************************************/
725
726#if __cplusplus
727 #define ecb_inline static inline
728#elif ECB_GCC_VERSION(2,5)
729 #define ecb_inline static __inline__
730#elif ECB_C99
731 #define ecb_inline static inline
732#else
733 #define ecb_inline static
734#endif
735
736#if ECB_GCC_VERSION(3,3)
737 #define ecb_restrict __restrict__
738#elif ECB_C99
739 #define ecb_restrict restrict
740#else
741 #define ecb_restrict
742#endif
743
744typedef int ecb_bool;
745
746#define ECB_CONCAT_(a, b) a ## b
747#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
748#define ECB_STRINGIFY_(a) # a
749#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
750
751#define ecb_function_ ecb_inline
752
753#if ECB_GCC_VERSION(3,1)
754 #define ecb_attribute(attrlist) __attribute__(attrlist)
755 #define ecb_is_constant(expr) __builtin_constant_p (expr)
756 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
757 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
758#else
759 #define ecb_attribute(attrlist)
760 #define ecb_is_constant(expr) 0
761 #define ecb_expect(expr,value) (expr)
762 #define ecb_prefetch(addr,rw,locality)
763#endif
764
765/* no emulation for ecb_decltype */
766#if ECB_GCC_VERSION(4,5)
767 #define ecb_decltype(x) __decltype(x)
768#elif ECB_GCC_VERSION(3,0)
769 #define ecb_decltype(x) __typeof(x)
770#endif
771
772#define ecb_noinline ecb_attribute ((__noinline__))
773#define ecb_unused ecb_attribute ((__unused__))
774#define ecb_const ecb_attribute ((__const__))
775#define ecb_pure ecb_attribute ((__pure__))
776
777#if ECB_C11
778 #define ecb_noreturn _Noreturn
779#else
780 #define ecb_noreturn ecb_attribute ((__noreturn__))
781#endif
782
783#if ECB_GCC_VERSION(4,3)
784 #define ecb_artificial ecb_attribute ((__artificial__))
785 #define ecb_hot ecb_attribute ((__hot__))
786 #define ecb_cold ecb_attribute ((__cold__))
787#else
788 #define ecb_artificial
789 #define ecb_hot
790 #define ecb_cold
791#endif
792
793/* put around conditional expressions if you are very sure that the */
794/* expression is mostly true or mostly false. note that these return */
795/* booleans, not the expression. */
476#define expect_false(expr) expect ((expr) != 0, 0) 796#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 797#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
798/* for compatibility to the rest of the world */
799#define ecb_likely(expr) ecb_expect_true (expr)
800#define ecb_unlikely(expr) ecb_expect_false (expr)
801
802/* count trailing zero bits and count # of one bits */
803#if ECB_GCC_VERSION(3,4)
804 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
805 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
806 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
807 #define ecb_ctz32(x) __builtin_ctz (x)
808 #define ecb_ctz64(x) __builtin_ctzll (x)
809 #define ecb_popcount32(x) __builtin_popcount (x)
810 /* no popcountll */
811#else
812 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
813 ecb_function_ int
814 ecb_ctz32 (uint32_t x)
815 {
816 int r = 0;
817
818 x &= ~x + 1; /* this isolates the lowest bit */
819
820#if ECB_branchless_on_i386
821 r += !!(x & 0xaaaaaaaa) << 0;
822 r += !!(x & 0xcccccccc) << 1;
823 r += !!(x & 0xf0f0f0f0) << 2;
824 r += !!(x & 0xff00ff00) << 3;
825 r += !!(x & 0xffff0000) << 4;
826#else
827 if (x & 0xaaaaaaaa) r += 1;
828 if (x & 0xcccccccc) r += 2;
829 if (x & 0xf0f0f0f0) r += 4;
830 if (x & 0xff00ff00) r += 8;
831 if (x & 0xffff0000) r += 16;
832#endif
833
834 return r;
835 }
836
837 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
838 ecb_function_ int
839 ecb_ctz64 (uint64_t x)
840 {
841 int shift = x & 0xffffffffU ? 0 : 32;
842 return ecb_ctz32 (x >> shift) + shift;
843 }
844
845 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
846 ecb_function_ int
847 ecb_popcount32 (uint32_t x)
848 {
849 x -= (x >> 1) & 0x55555555;
850 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
851 x = ((x >> 4) + x) & 0x0f0f0f0f;
852 x *= 0x01010101;
853
854 return x >> 24;
855 }
856
857 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
858 ecb_function_ int ecb_ld32 (uint32_t x)
859 {
860 int r = 0;
861
862 if (x >> 16) { x >>= 16; r += 16; }
863 if (x >> 8) { x >>= 8; r += 8; }
864 if (x >> 4) { x >>= 4; r += 4; }
865 if (x >> 2) { x >>= 2; r += 2; }
866 if (x >> 1) { r += 1; }
867
868 return r;
869 }
870
871 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
872 ecb_function_ int ecb_ld64 (uint64_t x)
873 {
874 int r = 0;
875
876 if (x >> 32) { x >>= 32; r += 32; }
877
878 return r + ecb_ld32 (x);
879 }
880#endif
881
882ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
883ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
884ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
885ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
886
887ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
888ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
889{
890 return ( (x * 0x0802U & 0x22110U)
891 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
892}
893
894ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
895ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
896{
897 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
898 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
899 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
900 x = ( x >> 8 ) | ( x << 8);
901
902 return x;
903}
904
905ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
906ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
907{
908 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
909 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
910 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
911 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
912 x = ( x >> 16 ) | ( x << 16);
913
914 return x;
915}
916
917/* popcount64 is only available on 64 bit cpus as gcc builtin */
918/* so for this version we are lazy */
919ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
920ecb_function_ int
921ecb_popcount64 (uint64_t x)
922{
923 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
924}
925
926ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
927ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
928ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
929ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
930ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
931ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
932ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
933ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
934
935ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
936ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
937ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
938ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
939ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
940ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
941ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
942ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
943
944#if ECB_GCC_VERSION(4,3)
945 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
946 #define ecb_bswap32(x) __builtin_bswap32 (x)
947 #define ecb_bswap64(x) __builtin_bswap64 (x)
948#else
949 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
950 ecb_function_ uint16_t
951 ecb_bswap16 (uint16_t x)
952 {
953 return ecb_rotl16 (x, 8);
954 }
955
956 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
957 ecb_function_ uint32_t
958 ecb_bswap32 (uint32_t x)
959 {
960 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
961 }
962
963 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
964 ecb_function_ uint64_t
965 ecb_bswap64 (uint64_t x)
966 {
967 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
968 }
969#endif
970
971#if ECB_GCC_VERSION(4,5)
972 #define ecb_unreachable() __builtin_unreachable ()
973#else
974 /* this seems to work fine, but gcc always emits a warning for it :/ */
975 ecb_inline void ecb_unreachable (void) ecb_noreturn;
976 ecb_inline void ecb_unreachable (void) { }
977#endif
978
979/* try to tell the compiler that some condition is definitely true */
980#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
981
982ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
983ecb_inline unsigned char
984ecb_byteorder_helper (void)
985{
986 /* the union code still generates code under pressure in gcc, */
987 /* but less than using pointers, and always seems to */
988 /* successfully return a constant. */
989 /* the reason why we have this horrible preprocessor mess */
990 /* is to avoid it in all cases, at least on common architectures */
991 /* or when using a recent enough gcc version (>= 4.6) */
992#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
993 return 0x44;
994#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
995 return 0x44;
996#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
997 return 0x11;
998#else
999 union
1000 {
1001 uint32_t i;
1002 uint8_t c;
1003 } u = { 0x11223344 };
1004 return u.c;
1005#endif
1006}
1007
1008ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
1009ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1010ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
1011ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1012
1013#if ECB_GCC_VERSION(3,0) || ECB_C99
1014 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1015#else
1016 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1017#endif
1018
1019#if __cplusplus
1020 template<typename T>
1021 static inline T ecb_div_rd (T val, T div)
1022 {
1023 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1024 }
1025 template<typename T>
1026 static inline T ecb_div_ru (T val, T div)
1027 {
1028 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1029 }
1030#else
1031 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1032 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1033#endif
1034
1035#if ecb_cplusplus_does_not_suck
1036 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1037 template<typename T, int N>
1038 static inline int ecb_array_length (const T (&arr)[N])
1039 {
1040 return N;
1041 }
1042#else
1043 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1044#endif
1045
1046/*******************************************************************************/
1047/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1048
1049/* basically, everything uses "ieee pure-endian" floating point numbers */
1050/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1051#if 0 \
1052 || __i386 || __i386__ \
1053 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1054 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1055 || defined __arm__ && defined __ARM_EABI__ \
1056 || defined __s390__ || defined __s390x__ \
1057 || defined __mips__ \
1058 || defined __alpha__ \
1059 || defined __hppa__ \
1060 || defined __ia64__ \
1061 || defined __m68k__ \
1062 || defined __m88k__ \
1063 || defined __sh__ \
1064 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1065 #define ECB_STDFP 1
1066 #include <string.h> /* for memcpy */
1067#else
1068 #define ECB_STDFP 0
1069#endif
1070
1071#ifndef ECB_NO_LIBM
1072
1073 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1074
1075 #ifdef NEN
1076 #define ECB_NAN NAN
1077 #else
1078 #define ECB_NAN INFINITY
1079 #endif
1080
1081 /* converts an ieee half/binary16 to a float */
1082 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1083 ecb_function_ float
1084 ecb_binary16_to_float (uint16_t x)
1085 {
1086 int e = (x >> 10) & 0x1f;
1087 int m = x & 0x3ff;
1088 float r;
1089
1090 if (!e ) r = ldexpf (m , -24);
1091 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1092 else if (m ) r = ECB_NAN;
1093 else r = INFINITY;
1094
1095 return x & 0x8000 ? -r : r;
1096 }
1097
1098 /* convert a float to ieee single/binary32 */
1099 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1100 ecb_function_ uint32_t
1101 ecb_float_to_binary32 (float x)
1102 {
1103 uint32_t r;
1104
1105 #if ECB_STDFP
1106 memcpy (&r, &x, 4);
1107 #else
1108 /* slow emulation, works for anything but -0 */
1109 uint32_t m;
1110 int e;
1111
1112 if (x == 0e0f ) return 0x00000000U;
1113 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1114 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1115 if (x != x ) return 0x7fbfffffU;
1116
1117 m = frexpf (x, &e) * 0x1000000U;
1118
1119 r = m & 0x80000000U;
1120
1121 if (r)
1122 m = -m;
1123
1124 if (e <= -126)
1125 {
1126 m &= 0xffffffU;
1127 m >>= (-125 - e);
1128 e = -126;
1129 }
1130
1131 r |= (e + 126) << 23;
1132 r |= m & 0x7fffffU;
1133 #endif
1134
1135 return r;
1136 }
1137
1138 /* converts an ieee single/binary32 to a float */
1139 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1140 ecb_function_ float
1141 ecb_binary32_to_float (uint32_t x)
1142 {
1143 float r;
1144
1145 #if ECB_STDFP
1146 memcpy (&r, &x, 4);
1147 #else
1148 /* emulation, only works for normals and subnormals and +0 */
1149 int neg = x >> 31;
1150 int e = (x >> 23) & 0xffU;
1151
1152 x &= 0x7fffffU;
1153
1154 if (e)
1155 x |= 0x800000U;
1156 else
1157 e = 1;
1158
1159 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1160 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1161
1162 r = neg ? -r : r;
1163 #endif
1164
1165 return r;
1166 }
1167
1168 /* convert a double to ieee double/binary64 */
1169 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1170 ecb_function_ uint64_t
1171 ecb_double_to_binary64 (double x)
1172 {
1173 uint64_t r;
1174
1175 #if ECB_STDFP
1176 memcpy (&r, &x, 8);
1177 #else
1178 /* slow emulation, works for anything but -0 */
1179 uint64_t m;
1180 int e;
1181
1182 if (x == 0e0 ) return 0x0000000000000000U;
1183 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1184 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1185 if (x != x ) return 0X7ff7ffffffffffffU;
1186
1187 m = frexp (x, &e) * 0x20000000000000U;
1188
1189 r = m & 0x8000000000000000;;
1190
1191 if (r)
1192 m = -m;
1193
1194 if (e <= -1022)
1195 {
1196 m &= 0x1fffffffffffffU;
1197 m >>= (-1021 - e);
1198 e = -1022;
1199 }
1200
1201 r |= ((uint64_t)(e + 1022)) << 52;
1202 r |= m & 0xfffffffffffffU;
1203 #endif
1204
1205 return r;
1206 }
1207
1208 /* converts an ieee double/binary64 to a double */
1209 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1210 ecb_function_ double
1211 ecb_binary64_to_double (uint64_t x)
1212 {
1213 double r;
1214
1215 #if ECB_STDFP
1216 memcpy (&r, &x, 8);
1217 #else
1218 /* emulation, only works for normals and subnormals and +0 */
1219 int neg = x >> 63;
1220 int e = (x >> 52) & 0x7ffU;
1221
1222 x &= 0xfffffffffffffU;
1223
1224 if (e)
1225 x |= 0x10000000000000U;
1226 else
1227 e = 1;
1228
1229 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1230 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1231
1232 r = neg ? -r : r;
1233 #endif
1234
1235 return r;
1236 }
1237
1238#endif
1239
1240#endif
1241
1242/* ECB.H END */
1243
1244#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1245/* if your architecture doesn't need memory fences, e.g. because it is
1246 * single-cpu/core, or if you use libev in a project that doesn't use libev
1247 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1248 * libev, in which cases the memory fences become nops.
1249 * alternatively, you can remove this #error and link against libpthread,
1250 * which will then provide the memory fences.
1251 */
1252# error "memory fences not defined for your architecture, please report"
1253#endif
1254
1255#ifndef ECB_MEMORY_FENCE
1256# define ECB_MEMORY_FENCE do { } while (0)
1257# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1258# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1259#endif
1260
1261#define expect_false(cond) ecb_expect_false (cond)
1262#define expect_true(cond) ecb_expect_true (cond)
1263#define noinline ecb_noinline
1264
478#define inline_size static inline 1265#define inline_size ecb_inline
479 1266
480#if EV_MINIMAL 1267#if EV_FEATURE_CODE
1268# define inline_speed ecb_inline
1269#else
481# define inline_speed static noinline 1270# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 1271#endif
485 1272
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1273#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 1274
488#if EV_MINPRI == EV_MAXPRI 1275#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 1288#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 1289#define ev_at(w) ((WT)(w))->at
503 1290
504#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1292/* 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 */ 1293/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1294static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 1295#endif
509 1296
510#if EV_USE_MONOTONIC 1297#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1298static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 1312# include "ev_win32.c"
526#endif 1313#endif
527 1314
528/*****************************************************************************/ 1315/*****************************************************************************/
529 1316
1317/* define a suitable floor function (only used by periodics atm) */
1318
1319#if EV_USE_FLOOR
1320# include <math.h>
1321# define ev_floor(v) floor (v)
1322#else
1323
1324#include <float.h>
1325
1326/* a floor() replacement function, should be independent of ev_tstamp type */
1327static ev_tstamp noinline
1328ev_floor (ev_tstamp v)
1329{
1330 /* the choice of shift factor is not terribly important */
1331#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1332 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1333#else
1334 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1335#endif
1336
1337 /* argument too large for an unsigned long? */
1338 if (expect_false (v >= shift))
1339 {
1340 ev_tstamp f;
1341
1342 if (v == v - 1.)
1343 return v; /* very large number */
1344
1345 f = shift * ev_floor (v * (1. / shift));
1346 return f + ev_floor (v - f);
1347 }
1348
1349 /* special treatment for negative args? */
1350 if (expect_false (v < 0.))
1351 {
1352 ev_tstamp f = -ev_floor (-v);
1353
1354 return f - (f == v ? 0 : 1);
1355 }
1356
1357 /* fits into an unsigned long */
1358 return (unsigned long)v;
1359}
1360
1361#endif
1362
1363/*****************************************************************************/
1364
1365#ifdef __linux
1366# include <sys/utsname.h>
1367#endif
1368
1369static unsigned int noinline ecb_cold
1370ev_linux_version (void)
1371{
1372#ifdef __linux
1373 unsigned int v = 0;
1374 struct utsname buf;
1375 int i;
1376 char *p = buf.release;
1377
1378 if (uname (&buf))
1379 return 0;
1380
1381 for (i = 3+1; --i; )
1382 {
1383 unsigned int c = 0;
1384
1385 for (;;)
1386 {
1387 if (*p >= '0' && *p <= '9')
1388 c = c * 10 + *p++ - '0';
1389 else
1390 {
1391 p += *p == '.';
1392 break;
1393 }
1394 }
1395
1396 v = (v << 8) | c;
1397 }
1398
1399 return v;
1400#else
1401 return 0;
1402#endif
1403}
1404
1405/*****************************************************************************/
1406
530#if EV_AVOID_STDIO 1407#if EV_AVOID_STDIO
531static void noinline 1408static void noinline ecb_cold
532ev_printerr (const char *msg) 1409ev_printerr (const char *msg)
533{ 1410{
534 write (STDERR_FILENO, msg, strlen (msg)); 1411 write (STDERR_FILENO, msg, strlen (msg));
535} 1412}
536#endif 1413#endif
537 1414
538static void (*syserr_cb)(const char *msg); 1415static void (*syserr_cb)(const char *msg) EV_THROW;
539 1416
540void 1417void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 1418ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
542{ 1419{
543 syserr_cb = cb; 1420 syserr_cb = cb;
544} 1421}
545 1422
546static void noinline 1423static void noinline ecb_cold
547ev_syserr (const char *msg) 1424ev_syserr (const char *msg)
548{ 1425{
549 if (!msg) 1426 if (!msg)
550 msg = "(libev) system error"; 1427 msg = "(libev) system error";
551 1428
552 if (syserr_cb) 1429 if (syserr_cb)
553 syserr_cb (msg); 1430 syserr_cb (msg);
554 else 1431 else
555 { 1432 {
556#if EV_AVOID_STDIO 1433#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 1434 ev_printerr (msg);
560 ev_printerr (": "); 1435 ev_printerr (": ");
561 ev_printerr (err); 1436 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 1437 ev_printerr ("\n");
563#else 1438#else
564 perror (msg); 1439 perror (msg);
565#endif 1440#endif
566 abort (); 1441 abort ();
567 } 1442 }
568} 1443}
569 1444
570static void * 1445static void *
571ev_realloc_emul (void *ptr, long size) 1446ev_realloc_emul (void *ptr, long size) EV_THROW
572{ 1447{
573 /* some systems, notably openbsd and darwin, fail to properly 1448 /* some systems, notably openbsd and darwin, fail to properly
574 * implement realloc (x, 0) (as required by both ansi c-98 and 1449 * implement realloc (x, 0) (as required by both ansi c-89 and
575 * the single unix specification, so work around them here. 1450 * the single unix specification, so work around them here.
1451 * recently, also (at least) fedora and debian started breaking it,
1452 * despite documenting it otherwise.
576 */ 1453 */
1454
577 if (size) 1455 if (size)
578 return realloc (ptr, size); 1456 return realloc (ptr, size);
579 1457
580 free (ptr); 1458 free (ptr);
581 return 0; 1459 return 0;
582} 1460}
583 1461
584static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1462static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
585 1463
586void 1464void ecb_cold
587ev_set_allocator (void *(*cb)(void *ptr, long size)) 1465ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
588{ 1466{
589 alloc = cb; 1467 alloc = cb;
590} 1468}
591 1469
592inline_speed void * 1470inline_speed void *
… …
595 ptr = alloc (ptr, size); 1473 ptr = alloc (ptr, size);
596 1474
597 if (!ptr && size) 1475 if (!ptr && size)
598 { 1476 {
599#if EV_AVOID_STDIO 1477#if EV_AVOID_STDIO
600 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1478 ev_printerr ("(libev) memory allocation failed, aborting.\n");
601#else 1479#else
602 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1480 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
603#endif 1481#endif
604 abort (); 1482 abort ();
605 } 1483 }
606 1484
607 return ptr; 1485 return ptr;
… …
624 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1502 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
625 unsigned char unused; 1503 unsigned char unused;
626#if EV_USE_EPOLL 1504#if EV_USE_EPOLL
627 unsigned int egen; /* generation counter to counter epoll bugs */ 1505 unsigned int egen; /* generation counter to counter epoll bugs */
628#endif 1506#endif
629#if EV_SELECT_IS_WINSOCKET 1507#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
630 SOCKET handle; 1508 SOCKET handle;
1509#endif
1510#if EV_USE_IOCP
1511 OVERLAPPED or, ow;
631#endif 1512#endif
632} ANFD; 1513} ANFD;
633 1514
634/* stores the pending event set for a given watcher */ 1515/* stores the pending event set for a given watcher */
635typedef struct 1516typedef struct
… …
677 #undef VAR 1558 #undef VAR
678 }; 1559 };
679 #include "ev_wrap.h" 1560 #include "ev_wrap.h"
680 1561
681 static struct ev_loop default_loop_struct; 1562 static struct ev_loop default_loop_struct;
682 struct ev_loop *ev_default_loop_ptr; 1563 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
683 1564
684#else 1565#else
685 1566
686 ev_tstamp ev_rt_now; 1567 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
687 #define VAR(name,decl) static decl; 1568 #define VAR(name,decl) static decl;
688 #include "ev_vars.h" 1569 #include "ev_vars.h"
689 #undef VAR 1570 #undef VAR
690 1571
691 static int ev_default_loop_ptr; 1572 static int ev_default_loop_ptr;
692 1573
693#endif 1574#endif
694 1575
695#if EV_MINIMAL < 2 1576#if EV_FEATURE_API
696# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1577# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
697# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1578# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
698# define EV_INVOKE_PENDING invoke_cb (EV_A) 1579# define EV_INVOKE_PENDING invoke_cb (EV_A)
699#else 1580#else
700# define EV_RELEASE_CB (void)0 1581# define EV_RELEASE_CB (void)0
701# define EV_ACQUIRE_CB (void)0 1582# define EV_ACQUIRE_CB (void)0
702# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1583# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
703#endif 1584#endif
704 1585
705#define EVUNLOOP_RECURSE 0x80 1586#define EVBREAK_RECURSE 0x80
706 1587
707/*****************************************************************************/ 1588/*****************************************************************************/
708 1589
709#ifndef EV_HAVE_EV_TIME 1590#ifndef EV_HAVE_EV_TIME
710ev_tstamp 1591ev_tstamp
711ev_time (void) 1592ev_time (void) EV_THROW
712{ 1593{
713#if EV_USE_REALTIME 1594#if EV_USE_REALTIME
714 if (expect_true (have_realtime)) 1595 if (expect_true (have_realtime))
715 { 1596 {
716 struct timespec ts; 1597 struct timespec ts;
… …
740 return ev_time (); 1621 return ev_time ();
741} 1622}
742 1623
743#if EV_MULTIPLICITY 1624#if EV_MULTIPLICITY
744ev_tstamp 1625ev_tstamp
745ev_now (EV_P) 1626ev_now (EV_P) EV_THROW
746{ 1627{
747 return ev_rt_now; 1628 return ev_rt_now;
748} 1629}
749#endif 1630#endif
750 1631
751void 1632void
752ev_sleep (ev_tstamp delay) 1633ev_sleep (ev_tstamp delay) EV_THROW
753{ 1634{
754 if (delay > 0.) 1635 if (delay > 0.)
755 { 1636 {
756#if EV_USE_NANOSLEEP 1637#if EV_USE_NANOSLEEP
757 struct timespec ts; 1638 struct timespec ts;
758 1639
759 ts.tv_sec = (time_t)delay; 1640 EV_TS_SET (ts, delay);
760 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
761
762 nanosleep (&ts, 0); 1641 nanosleep (&ts, 0);
763#elif defined(_WIN32) 1642#elif defined _WIN32
764 Sleep ((unsigned long)(delay * 1e3)); 1643 Sleep ((unsigned long)(delay * 1e3));
765#else 1644#else
766 struct timeval tv; 1645 struct timeval tv;
767 1646
768 tv.tv_sec = (time_t)delay;
769 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
770
771 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1647 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
772 /* something not guaranteed by newer posix versions, but guaranteed */ 1648 /* something not guaranteed by newer posix versions, but guaranteed */
773 /* by older ones */ 1649 /* by older ones */
1650 EV_TV_SET (tv, delay);
774 select (0, 0, 0, 0, &tv); 1651 select (0, 0, 0, 0, &tv);
775#endif 1652#endif
776 } 1653 }
777} 1654}
778 1655
779/*****************************************************************************/ 1656/*****************************************************************************/
780 1657
781#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1658#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
782 1659
783/* find a suitable new size for the given array, */ 1660/* find a suitable new size for the given array, */
784/* hopefully by rounding to a ncie-to-malloc size */ 1661/* hopefully by rounding to a nice-to-malloc size */
785inline_size int 1662inline_size int
786array_nextsize (int elem, int cur, int cnt) 1663array_nextsize (int elem, int cur, int cnt)
787{ 1664{
788 int ncur = cur + 1; 1665 int ncur = cur + 1;
789 1666
790 do 1667 do
791 ncur <<= 1; 1668 ncur <<= 1;
792 while (cnt > ncur); 1669 while (cnt > ncur);
793 1670
794 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1671 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
795 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1672 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
796 { 1673 {
797 ncur *= elem; 1674 ncur *= elem;
798 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1675 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
799 ncur = ncur - sizeof (void *) * 4; 1676 ncur = ncur - sizeof (void *) * 4;
… …
801 } 1678 }
802 1679
803 return ncur; 1680 return ncur;
804} 1681}
805 1682
806static noinline void * 1683static void * noinline ecb_cold
807array_realloc (int elem, void *base, int *cur, int cnt) 1684array_realloc (int elem, void *base, int *cur, int cnt)
808{ 1685{
809 *cur = array_nextsize (elem, *cur, cnt); 1686 *cur = array_nextsize (elem, *cur, cnt);
810 return ev_realloc (base, elem * *cur); 1687 return ev_realloc (base, elem * *cur);
811} 1688}
… …
814 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1691 memset ((void *)(base), 0, sizeof (*(base)) * (count))
815 1692
816#define array_needsize(type,base,cur,cnt,init) \ 1693#define array_needsize(type,base,cur,cnt,init) \
817 if (expect_false ((cnt) > (cur))) \ 1694 if (expect_false ((cnt) > (cur))) \
818 { \ 1695 { \
819 int ocur_ = (cur); \ 1696 int ecb_unused ocur_ = (cur); \
820 (base) = (type *)array_realloc \ 1697 (base) = (type *)array_realloc \
821 (sizeof (type), (base), &(cur), (cnt)); \ 1698 (sizeof (type), (base), &(cur), (cnt)); \
822 init ((base) + (ocur_), (cur) - ocur_); \ 1699 init ((base) + (ocur_), (cur) - ocur_); \
823 } 1700 }
824 1701
… …
842pendingcb (EV_P_ ev_prepare *w, int revents) 1719pendingcb (EV_P_ ev_prepare *w, int revents)
843{ 1720{
844} 1721}
845 1722
846void noinline 1723void noinline
847ev_feed_event (EV_P_ void *w, int revents) 1724ev_feed_event (EV_P_ void *w, int revents) EV_THROW
848{ 1725{
849 W w_ = (W)w; 1726 W w_ = (W)w;
850 int pri = ABSPRI (w_); 1727 int pri = ABSPRI (w_);
851 1728
852 if (expect_false (w_->pending)) 1729 if (expect_false (w_->pending))
… …
856 w_->pending = ++pendingcnt [pri]; 1733 w_->pending = ++pendingcnt [pri];
857 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1734 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
858 pendings [pri][w_->pending - 1].w = w_; 1735 pendings [pri][w_->pending - 1].w = w_;
859 pendings [pri][w_->pending - 1].events = revents; 1736 pendings [pri][w_->pending - 1].events = revents;
860 } 1737 }
1738
1739 pendingpri = NUMPRI - 1;
861} 1740}
862 1741
863inline_speed void 1742inline_speed void
864feed_reverse (EV_P_ W w) 1743feed_reverse (EV_P_ W w)
865{ 1744{
… …
885} 1764}
886 1765
887/*****************************************************************************/ 1766/*****************************************************************************/
888 1767
889inline_speed void 1768inline_speed void
890fd_event_nc (EV_P_ int fd, int revents) 1769fd_event_nocheck (EV_P_ int fd, int revents)
891{ 1770{
892 ANFD *anfd = anfds + fd; 1771 ANFD *anfd = anfds + fd;
893 ev_io *w; 1772 ev_io *w;
894 1773
895 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1774 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
907fd_event (EV_P_ int fd, int revents) 1786fd_event (EV_P_ int fd, int revents)
908{ 1787{
909 ANFD *anfd = anfds + fd; 1788 ANFD *anfd = anfds + fd;
910 1789
911 if (expect_true (!anfd->reify)) 1790 if (expect_true (!anfd->reify))
912 fd_event_nc (EV_A_ fd, revents); 1791 fd_event_nocheck (EV_A_ fd, revents);
913} 1792}
914 1793
915void 1794void
916ev_feed_fd_event (EV_P_ int fd, int revents) 1795ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
917{ 1796{
918 if (fd >= 0 && fd < anfdmax) 1797 if (fd >= 0 && fd < anfdmax)
919 fd_event_nc (EV_A_ fd, revents); 1798 fd_event_nocheck (EV_A_ fd, revents);
920} 1799}
921 1800
922/* make sure the external fd watch events are in-sync */ 1801/* make sure the external fd watch events are in-sync */
923/* with the kernel/libev internal state */ 1802/* with the kernel/libev internal state */
924inline_size void 1803inline_size void
925fd_reify (EV_P) 1804fd_reify (EV_P)
926{ 1805{
927 int i; 1806 int i;
928 1807
1808#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1809 for (i = 0; i < fdchangecnt; ++i)
1810 {
1811 int fd = fdchanges [i];
1812 ANFD *anfd = anfds + fd;
1813
1814 if (anfd->reify & EV__IOFDSET && anfd->head)
1815 {
1816 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1817
1818 if (handle != anfd->handle)
1819 {
1820 unsigned long arg;
1821
1822 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1823
1824 /* handle changed, but fd didn't - we need to do it in two steps */
1825 backend_modify (EV_A_ fd, anfd->events, 0);
1826 anfd->events = 0;
1827 anfd->handle = handle;
1828 }
1829 }
1830 }
1831#endif
1832
929 for (i = 0; i < fdchangecnt; ++i) 1833 for (i = 0; i < fdchangecnt; ++i)
930 { 1834 {
931 int fd = fdchanges [i]; 1835 int fd = fdchanges [i];
932 ANFD *anfd = anfds + fd; 1836 ANFD *anfd = anfds + fd;
933 ev_io *w; 1837 ev_io *w;
934 1838
935 unsigned char events = 0; 1839 unsigned char o_events = anfd->events;
1840 unsigned char o_reify = anfd->reify;
936 1841
937 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1842 anfd->reify = 0;
938 events |= (unsigned char)w->events;
939 1843
940#if EV_SELECT_IS_WINSOCKET 1844 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
941 if (events)
942 { 1845 {
943 unsigned long arg; 1846 anfd->events = 0;
944 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1847
945 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1848 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1849 anfd->events |= (unsigned char)w->events;
1850
1851 if (o_events != anfd->events)
1852 o_reify = EV__IOFDSET; /* actually |= */
946 } 1853 }
947#endif
948 1854
949 { 1855 if (o_reify & EV__IOFDSET)
950 unsigned char o_events = anfd->events;
951 unsigned char o_reify = anfd->reify;
952
953 anfd->reify = 0;
954 anfd->events = events;
955
956 if (o_events != events || o_reify & EV__IOFDSET)
957 backend_modify (EV_A_ fd, o_events, events); 1856 backend_modify (EV_A_ fd, o_events, anfd->events);
958 }
959 } 1857 }
960 1858
961 fdchangecnt = 0; 1859 fdchangecnt = 0;
962} 1860}
963 1861
… …
975 fdchanges [fdchangecnt - 1] = fd; 1873 fdchanges [fdchangecnt - 1] = fd;
976 } 1874 }
977} 1875}
978 1876
979/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1877/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
980inline_speed void 1878inline_speed void ecb_cold
981fd_kill (EV_P_ int fd) 1879fd_kill (EV_P_ int fd)
982{ 1880{
983 ev_io *w; 1881 ev_io *w;
984 1882
985 while ((w = (ev_io *)anfds [fd].head)) 1883 while ((w = (ev_io *)anfds [fd].head))
… …
987 ev_io_stop (EV_A_ w); 1885 ev_io_stop (EV_A_ w);
988 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1886 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
989 } 1887 }
990} 1888}
991 1889
992/* check whether the given fd is atcually valid, for error recovery */ 1890/* check whether the given fd is actually valid, for error recovery */
993inline_size int 1891inline_size int ecb_cold
994fd_valid (int fd) 1892fd_valid (int fd)
995{ 1893{
996#ifdef _WIN32 1894#ifdef _WIN32
997 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1895 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
998#else 1896#else
999 return fcntl (fd, F_GETFD) != -1; 1897 return fcntl (fd, F_GETFD) != -1;
1000#endif 1898#endif
1001} 1899}
1002 1900
1003/* called on EBADF to verify fds */ 1901/* called on EBADF to verify fds */
1004static void noinline 1902static void noinline ecb_cold
1005fd_ebadf (EV_P) 1903fd_ebadf (EV_P)
1006{ 1904{
1007 int fd; 1905 int fd;
1008 1906
1009 for (fd = 0; fd < anfdmax; ++fd) 1907 for (fd = 0; fd < anfdmax; ++fd)
… …
1011 if (!fd_valid (fd) && errno == EBADF) 1909 if (!fd_valid (fd) && errno == EBADF)
1012 fd_kill (EV_A_ fd); 1910 fd_kill (EV_A_ fd);
1013} 1911}
1014 1912
1015/* called on ENOMEM in select/poll to kill some fds and retry */ 1913/* called on ENOMEM in select/poll to kill some fds and retry */
1016static void noinline 1914static void noinline ecb_cold
1017fd_enomem (EV_P) 1915fd_enomem (EV_P)
1018{ 1916{
1019 int fd; 1917 int fd;
1020 1918
1021 for (fd = anfdmax; fd--; ) 1919 for (fd = anfdmax; fd--; )
… …
1039 anfds [fd].emask = 0; 1937 anfds [fd].emask = 0;
1040 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1938 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1041 } 1939 }
1042} 1940}
1043 1941
1942/* used to prepare libev internal fd's */
1943/* this is not fork-safe */
1944inline_speed void
1945fd_intern (int fd)
1946{
1947#ifdef _WIN32
1948 unsigned long arg = 1;
1949 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1950#else
1951 fcntl (fd, F_SETFD, FD_CLOEXEC);
1952 fcntl (fd, F_SETFL, O_NONBLOCK);
1953#endif
1954}
1955
1044/*****************************************************************************/ 1956/*****************************************************************************/
1045 1957
1046/* 1958/*
1047 * the heap functions want a real array index. array index 0 uis guaranteed to not 1959 * the heap functions want a real array index. array index 0 is guaranteed to not
1048 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1960 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1049 * the branching factor of the d-tree. 1961 * the branching factor of the d-tree.
1050 */ 1962 */
1051 1963
1052/* 1964/*
… …
1200 2112
1201static ANSIG signals [EV_NSIG - 1]; 2113static ANSIG signals [EV_NSIG - 1];
1202 2114
1203/*****************************************************************************/ 2115/*****************************************************************************/
1204 2116
1205/* used to prepare libev internal fd's */ 2117#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1206/* this is not fork-safe */ 2118
2119static void noinline ecb_cold
2120evpipe_init (EV_P)
2121{
2122 if (!ev_is_active (&pipe_w))
2123 {
2124 int fds [2];
2125
2126# if EV_USE_EVENTFD
2127 fds [0] = -1;
2128 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
2129 if (fds [1] < 0 && errno == EINVAL)
2130 fds [1] = eventfd (0, 0);
2131
2132 if (fds [1] < 0)
2133# endif
2134 {
2135 while (pipe (fds))
2136 ev_syserr ("(libev) error creating signal/async pipe");
2137
2138 fd_intern (fds [0]);
2139 }
2140
2141 evpipe [0] = fds [0];
2142
2143 if (evpipe [1] < 0)
2144 evpipe [1] = fds [1]; /* first call, set write fd */
2145 else
2146 {
2147 /* on subsequent calls, do not change evpipe [1] */
2148 /* so that evpipe_write can always rely on its value. */
2149 /* this branch does not do anything sensible on windows, */
2150 /* so must not be executed on windows */
2151
2152 dup2 (fds [1], evpipe [1]);
2153 close (fds [1]);
2154 }
2155
2156 fd_intern (evpipe [1]);
2157
2158 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2159 ev_io_start (EV_A_ &pipe_w);
2160 ev_unref (EV_A); /* watcher should not keep loop alive */
2161 }
2162}
2163
1207inline_speed void 2164inline_speed void
1208fd_intern (int fd) 2165evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1209{ 2166{
1210#ifdef _WIN32 2167 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1211 unsigned long arg = 1;
1212 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1213#else
1214 fcntl (fd, F_SETFD, FD_CLOEXEC);
1215 fcntl (fd, F_SETFL, O_NONBLOCK);
1216#endif
1217}
1218 2168
1219static void noinline 2169 if (expect_true (*flag))
1220evpipe_init (EV_P) 2170 return;
1221{ 2171
1222 if (!ev_is_active (&pipe_w)) 2172 *flag = 1;
2173 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2174
2175 pipe_write_skipped = 1;
2176
2177 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2178
2179 if (pipe_write_wanted)
1223 { 2180 {
2181 int old_errno;
2182
2183 pipe_write_skipped = 0;
2184 ECB_MEMORY_FENCE_RELEASE;
2185
2186 old_errno = errno; /* save errno because write will clobber it */
2187
1224#if EV_USE_EVENTFD 2188#if EV_USE_EVENTFD
1225 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2189 if (evpipe [0] < 0)
1226 if (evfd < 0 && errno == EINVAL)
1227 evfd = eventfd (0, 0);
1228
1229 if (evfd >= 0)
1230 { 2190 {
1231 evpipe [0] = -1; 2191 uint64_t counter = 1;
1232 fd_intern (evfd); /* doing it twice doesn't hurt */ 2192 write (evpipe [1], &counter, sizeof (uint64_t));
1233 ev_io_set (&pipe_w, evfd, EV_READ);
1234 } 2193 }
1235 else 2194 else
1236#endif 2195#endif
1237 { 2196 {
1238 while (pipe (evpipe)) 2197#ifdef _WIN32
1239 ev_syserr ("(libev) error creating signal/async pipe"); 2198 WSABUF buf;
1240 2199 DWORD sent;
1241 fd_intern (evpipe [0]); 2200 buf.buf = &buf;
1242 fd_intern (evpipe [1]); 2201 buf.len = 1;
1243 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2202 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2203#else
2204 write (evpipe [1], &(evpipe [1]), 1);
2205#endif
1244 } 2206 }
1245
1246 ev_io_start (EV_A_ &pipe_w);
1247 ev_unref (EV_A); /* watcher should not keep loop alive */
1248 }
1249}
1250
1251inline_size void
1252evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1253{
1254 if (!*flag)
1255 {
1256 int old_errno = errno; /* save errno because write might clobber it */
1257
1258 *flag = 1;
1259
1260#if EV_USE_EVENTFD
1261 if (evfd >= 0)
1262 {
1263 uint64_t counter = 1;
1264 write (evfd, &counter, sizeof (uint64_t));
1265 }
1266 else
1267#endif
1268 write (evpipe [1], &old_errno, 1);
1269 2207
1270 errno = old_errno; 2208 errno = old_errno;
1271 } 2209 }
1272} 2210}
1273 2211
… …
1276static void 2214static void
1277pipecb (EV_P_ ev_io *iow, int revents) 2215pipecb (EV_P_ ev_io *iow, int revents)
1278{ 2216{
1279 int i; 2217 int i;
1280 2218
2219 if (revents & EV_READ)
2220 {
1281#if EV_USE_EVENTFD 2221#if EV_USE_EVENTFD
1282 if (evfd >= 0) 2222 if (evpipe [0] < 0)
1283 { 2223 {
1284 uint64_t counter; 2224 uint64_t counter;
1285 read (evfd, &counter, sizeof (uint64_t)); 2225 read (evpipe [1], &counter, sizeof (uint64_t));
1286 } 2226 }
1287 else 2227 else
1288#endif 2228#endif
1289 { 2229 {
1290 char dummy; 2230 char dummy[4];
2231#ifdef _WIN32
2232 WSABUF buf;
2233 DWORD recvd;
2234 DWORD flags = 0;
2235 buf.buf = dummy;
2236 buf.len = sizeof (dummy);
2237 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2238#else
1291 read (evpipe [0], &dummy, 1); 2239 read (evpipe [0], &dummy, sizeof (dummy));
2240#endif
2241 }
1292 } 2242 }
1293 2243
2244 pipe_write_skipped = 0;
2245
2246 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2247
2248#if EV_SIGNAL_ENABLE
1294 if (sig_pending) 2249 if (sig_pending)
1295 { 2250 {
1296 sig_pending = 0; 2251 sig_pending = 0;
2252
2253 ECB_MEMORY_FENCE;
1297 2254
1298 for (i = EV_NSIG - 1; i--; ) 2255 for (i = EV_NSIG - 1; i--; )
1299 if (expect_false (signals [i].pending)) 2256 if (expect_false (signals [i].pending))
1300 ev_feed_signal_event (EV_A_ i + 1); 2257 ev_feed_signal_event (EV_A_ i + 1);
1301 } 2258 }
2259#endif
1302 2260
1303#if EV_ASYNC_ENABLE 2261#if EV_ASYNC_ENABLE
1304 if (async_pending) 2262 if (async_pending)
1305 { 2263 {
1306 async_pending = 0; 2264 async_pending = 0;
2265
2266 ECB_MEMORY_FENCE;
1307 2267
1308 for (i = asynccnt; i--; ) 2268 for (i = asynccnt; i--; )
1309 if (asyncs [i]->sent) 2269 if (asyncs [i]->sent)
1310 { 2270 {
1311 asyncs [i]->sent = 0; 2271 asyncs [i]->sent = 0;
2272 ECB_MEMORY_FENCE_RELEASE;
1312 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2273 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1313 } 2274 }
1314 } 2275 }
1315#endif 2276#endif
1316} 2277}
1317 2278
1318/*****************************************************************************/ 2279/*****************************************************************************/
1319 2280
2281void
2282ev_feed_signal (int signum) EV_THROW
2283{
2284#if EV_MULTIPLICITY
2285 EV_P;
2286 ECB_MEMORY_FENCE_ACQUIRE;
2287 EV_A = signals [signum - 1].loop;
2288
2289 if (!EV_A)
2290 return;
2291#endif
2292
2293 signals [signum - 1].pending = 1;
2294 evpipe_write (EV_A_ &sig_pending);
2295}
2296
1320static void 2297static void
1321ev_sighandler (int signum) 2298ev_sighandler (int signum)
1322{ 2299{
1323#if EV_MULTIPLICITY
1324 EV_P = signals [signum - 1].loop;
1325#endif
1326
1327#ifdef _WIN32 2300#ifdef _WIN32
1328 signal (signum, ev_sighandler); 2301 signal (signum, ev_sighandler);
1329#endif 2302#endif
1330 2303
1331 signals [signum - 1].pending = 1; 2304 ev_feed_signal (signum);
1332 evpipe_write (EV_A_ &sig_pending);
1333} 2305}
1334 2306
1335void noinline 2307void noinline
1336ev_feed_signal_event (EV_P_ int signum) 2308ev_feed_signal_event (EV_P_ int signum) EV_THROW
1337{ 2309{
1338 WL w; 2310 WL w;
1339 2311
1340 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2312 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1341 return; 2313 return;
1342 2314
1343 --signum; 2315 --signum;
1344 2316
1345#if EV_MULTIPLICITY 2317#if EV_MULTIPLICITY
… …
1349 if (expect_false (signals [signum].loop != EV_A)) 2321 if (expect_false (signals [signum].loop != EV_A))
1350 return; 2322 return;
1351#endif 2323#endif
1352 2324
1353 signals [signum].pending = 0; 2325 signals [signum].pending = 0;
2326 ECB_MEMORY_FENCE_RELEASE;
1354 2327
1355 for (w = signals [signum].head; w; w = w->next) 2328 for (w = signals [signum].head; w; w = w->next)
1356 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2329 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1357} 2330}
1358 2331
… …
1374 break; 2347 break;
1375 } 2348 }
1376} 2349}
1377#endif 2350#endif
1378 2351
2352#endif
2353
1379/*****************************************************************************/ 2354/*****************************************************************************/
1380 2355
2356#if EV_CHILD_ENABLE
1381static WL childs [EV_PID_HASHSIZE]; 2357static WL childs [EV_PID_HASHSIZE];
1382
1383#ifndef _WIN32
1384 2358
1385static ev_signal childev; 2359static ev_signal childev;
1386 2360
1387#ifndef WIFCONTINUED 2361#ifndef WIFCONTINUED
1388# define WIFCONTINUED(status) 0 2362# define WIFCONTINUED(status) 0
… …
1393child_reap (EV_P_ int chain, int pid, int status) 2367child_reap (EV_P_ int chain, int pid, int status)
1394{ 2368{
1395 ev_child *w; 2369 ev_child *w;
1396 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2370 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1397 2371
1398 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2372 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1399 { 2373 {
1400 if ((w->pid == pid || !w->pid) 2374 if ((w->pid == pid || !w->pid)
1401 && (!traced || (w->flags & 1))) 2375 && (!traced || (w->flags & 1)))
1402 { 2376 {
1403 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2377 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1428 /* make sure we are called again until all children have been reaped */ 2402 /* make sure we are called again until all children have been reaped */
1429 /* we need to do it this way so that the callback gets called before we continue */ 2403 /* we need to do it this way so that the callback gets called before we continue */
1430 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2404 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1431 2405
1432 child_reap (EV_A_ pid, pid, status); 2406 child_reap (EV_A_ pid, pid, status);
1433 if (EV_PID_HASHSIZE > 1) 2407 if ((EV_PID_HASHSIZE) > 1)
1434 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2408 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1435} 2409}
1436 2410
1437#endif 2411#endif
1438 2412
1439/*****************************************************************************/ 2413/*****************************************************************************/
1440 2414
2415#if EV_USE_IOCP
2416# include "ev_iocp.c"
2417#endif
1441#if EV_USE_PORT 2418#if EV_USE_PORT
1442# include "ev_port.c" 2419# include "ev_port.c"
1443#endif 2420#endif
1444#if EV_USE_KQUEUE 2421#if EV_USE_KQUEUE
1445# include "ev_kqueue.c" 2422# include "ev_kqueue.c"
… …
1452#endif 2429#endif
1453#if EV_USE_SELECT 2430#if EV_USE_SELECT
1454# include "ev_select.c" 2431# include "ev_select.c"
1455#endif 2432#endif
1456 2433
1457int 2434int ecb_cold
1458ev_version_major (void) 2435ev_version_major (void) EV_THROW
1459{ 2436{
1460 return EV_VERSION_MAJOR; 2437 return EV_VERSION_MAJOR;
1461} 2438}
1462 2439
1463int 2440int ecb_cold
1464ev_version_minor (void) 2441ev_version_minor (void) EV_THROW
1465{ 2442{
1466 return EV_VERSION_MINOR; 2443 return EV_VERSION_MINOR;
1467} 2444}
1468 2445
1469/* return true if we are running with elevated privileges and should ignore env variables */ 2446/* return true if we are running with elevated privileges and should ignore env variables */
1470int inline_size 2447int inline_size ecb_cold
1471enable_secure (void) 2448enable_secure (void)
1472{ 2449{
1473#ifdef _WIN32 2450#ifdef _WIN32
1474 return 0; 2451 return 0;
1475#else 2452#else
1476 return getuid () != geteuid () 2453 return getuid () != geteuid ()
1477 || getgid () != getegid (); 2454 || getgid () != getegid ();
1478#endif 2455#endif
1479} 2456}
1480 2457
1481unsigned int 2458unsigned int ecb_cold
1482ev_supported_backends (void) 2459ev_supported_backends (void) EV_THROW
1483{ 2460{
1484 unsigned int flags = 0; 2461 unsigned int flags = 0;
1485 2462
1486 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2463 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1487 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2464 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1490 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2467 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1491 2468
1492 return flags; 2469 return flags;
1493} 2470}
1494 2471
1495unsigned int 2472unsigned int ecb_cold
1496ev_recommended_backends (void) 2473ev_recommended_backends (void) EV_THROW
1497{ 2474{
1498 unsigned int flags = ev_supported_backends (); 2475 unsigned int flags = ev_supported_backends ();
1499 2476
1500#ifndef __NetBSD__ 2477#ifndef __NetBSD__
1501 /* kqueue is borked on everything but netbsd apparently */ 2478 /* kqueue is borked on everything but netbsd apparently */
… …
1505#ifdef __APPLE__ 2482#ifdef __APPLE__
1506 /* only select works correctly on that "unix-certified" platform */ 2483 /* only select works correctly on that "unix-certified" platform */
1507 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2484 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1508 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2485 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1509#endif 2486#endif
2487#ifdef __FreeBSD__
2488 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2489#endif
1510 2490
1511 return flags; 2491 return flags;
1512} 2492}
1513 2493
2494unsigned int ecb_cold
2495ev_embeddable_backends (void) EV_THROW
2496{
2497 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2498
2499 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2500 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2501 flags &= ~EVBACKEND_EPOLL;
2502
2503 return flags;
2504}
2505
1514unsigned int 2506unsigned int
1515ev_embeddable_backends (void) 2507ev_backend (EV_P) EV_THROW
1516{ 2508{
1517 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2509 return backend;
1518
1519 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1520 /* please fix it and tell me how to detect the fix */
1521 flags &= ~EVBACKEND_EPOLL;
1522
1523 return flags;
1524} 2510}
1525 2511
2512#if EV_FEATURE_API
1526unsigned int 2513unsigned int
1527ev_backend (EV_P) 2514ev_iteration (EV_P) EV_THROW
1528{ 2515{
1529 return backend; 2516 return loop_count;
1530} 2517}
1531 2518
1532#if EV_MINIMAL < 2
1533unsigned int 2519unsigned int
1534ev_loop_count (EV_P) 2520ev_depth (EV_P) EV_THROW
1535{
1536 return loop_count;
1537}
1538
1539unsigned int
1540ev_loop_depth (EV_P)
1541{ 2521{
1542 return loop_depth; 2522 return loop_depth;
1543} 2523}
1544 2524
1545void 2525void
1546ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2526ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1547{ 2527{
1548 io_blocktime = interval; 2528 io_blocktime = interval;
1549} 2529}
1550 2530
1551void 2531void
1552ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2532ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1553{ 2533{
1554 timeout_blocktime = interval; 2534 timeout_blocktime = interval;
1555} 2535}
1556 2536
1557void 2537void
1558ev_set_userdata (EV_P_ void *data) 2538ev_set_userdata (EV_P_ void *data) EV_THROW
1559{ 2539{
1560 userdata = data; 2540 userdata = data;
1561} 2541}
1562 2542
1563void * 2543void *
1564ev_userdata (EV_P) 2544ev_userdata (EV_P) EV_THROW
1565{ 2545{
1566 return userdata; 2546 return userdata;
1567} 2547}
1568 2548
2549void
1569void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2550ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1570{ 2551{
1571 invoke_cb = invoke_pending_cb; 2552 invoke_cb = invoke_pending_cb;
1572} 2553}
1573 2554
2555void
1574void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2556ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1575{ 2557{
1576 release_cb = release; 2558 release_cb = release;
1577 acquire_cb = acquire; 2559 acquire_cb = acquire;
1578} 2560}
1579#endif 2561#endif
1580 2562
1581/* initialise a loop structure, must be zero-initialised */ 2563/* initialise a loop structure, must be zero-initialised */
1582static void noinline 2564static void noinline ecb_cold
1583loop_init (EV_P_ unsigned int flags) 2565loop_init (EV_P_ unsigned int flags) EV_THROW
1584{ 2566{
1585 if (!backend) 2567 if (!backend)
1586 { 2568 {
2569 origflags = flags;
2570
1587#if EV_USE_REALTIME 2571#if EV_USE_REALTIME
1588 if (!have_realtime) 2572 if (!have_realtime)
1589 { 2573 {
1590 struct timespec ts; 2574 struct timespec ts;
1591 2575
… …
1613 if (!(flags & EVFLAG_NOENV) 2597 if (!(flags & EVFLAG_NOENV)
1614 && !enable_secure () 2598 && !enable_secure ()
1615 && getenv ("LIBEV_FLAGS")) 2599 && getenv ("LIBEV_FLAGS"))
1616 flags = atoi (getenv ("LIBEV_FLAGS")); 2600 flags = atoi (getenv ("LIBEV_FLAGS"));
1617 2601
1618 ev_rt_now = ev_time (); 2602 ev_rt_now = ev_time ();
1619 mn_now = get_clock (); 2603 mn_now = get_clock ();
1620 now_floor = mn_now; 2604 now_floor = mn_now;
1621 rtmn_diff = ev_rt_now - mn_now; 2605 rtmn_diff = ev_rt_now - mn_now;
1622#if EV_MINIMAL < 2 2606#if EV_FEATURE_API
1623 invoke_cb = ev_invoke_pending; 2607 invoke_cb = ev_invoke_pending;
1624#endif 2608#endif
1625 2609
1626 io_blocktime = 0.; 2610 io_blocktime = 0.;
1627 timeout_blocktime = 0.; 2611 timeout_blocktime = 0.;
1628 backend = 0; 2612 backend = 0;
1629 backend_fd = -1; 2613 backend_fd = -1;
1630 sig_pending = 0; 2614 sig_pending = 0;
1631#if EV_ASYNC_ENABLE 2615#if EV_ASYNC_ENABLE
1632 async_pending = 0; 2616 async_pending = 0;
1633#endif 2617#endif
2618 pipe_write_skipped = 0;
2619 pipe_write_wanted = 0;
2620 evpipe [0] = -1;
2621 evpipe [1] = -1;
1634#if EV_USE_INOTIFY 2622#if EV_USE_INOTIFY
1635 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2623 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1636#endif 2624#endif
1637#if EV_USE_SIGNALFD 2625#if EV_USE_SIGNALFD
1638 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2626 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1639#endif 2627#endif
1640 2628
1641 if (!(flags & 0x0000ffffU)) 2629 if (!(flags & EVBACKEND_MASK))
1642 flags |= ev_recommended_backends (); 2630 flags |= ev_recommended_backends ();
1643 2631
2632#if EV_USE_IOCP
2633 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2634#endif
1644#if EV_USE_PORT 2635#if EV_USE_PORT
1645 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2636 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1646#endif 2637#endif
1647#if EV_USE_KQUEUE 2638#if EV_USE_KQUEUE
1648 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2639 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1657 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2648 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1658#endif 2649#endif
1659 2650
1660 ev_prepare_init (&pending_w, pendingcb); 2651 ev_prepare_init (&pending_w, pendingcb);
1661 2652
2653#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1662 ev_init (&pipe_w, pipecb); 2654 ev_init (&pipe_w, pipecb);
1663 ev_set_priority (&pipe_w, EV_MAXPRI); 2655 ev_set_priority (&pipe_w, EV_MAXPRI);
2656#endif
1664 } 2657 }
1665} 2658}
1666 2659
1667/* free up a loop structure */ 2660/* free up a loop structure */
1668static void noinline 2661void ecb_cold
1669loop_destroy (EV_P) 2662ev_loop_destroy (EV_P)
1670{ 2663{
1671 int i; 2664 int i;
2665
2666#if EV_MULTIPLICITY
2667 /* mimic free (0) */
2668 if (!EV_A)
2669 return;
2670#endif
2671
2672#if EV_CLEANUP_ENABLE
2673 /* queue cleanup watchers (and execute them) */
2674 if (expect_false (cleanupcnt))
2675 {
2676 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2677 EV_INVOKE_PENDING;
2678 }
2679#endif
2680
2681#if EV_CHILD_ENABLE
2682 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2683 {
2684 ev_ref (EV_A); /* child watcher */
2685 ev_signal_stop (EV_A_ &childev);
2686 }
2687#endif
1672 2688
1673 if (ev_is_active (&pipe_w)) 2689 if (ev_is_active (&pipe_w))
1674 { 2690 {
1675 /*ev_ref (EV_A);*/ 2691 /*ev_ref (EV_A);*/
1676 /*ev_io_stop (EV_A_ &pipe_w);*/ 2692 /*ev_io_stop (EV_A_ &pipe_w);*/
1677 2693
1678#if EV_USE_EVENTFD
1679 if (evfd >= 0)
1680 close (evfd);
1681#endif
1682
1683 if (evpipe [0] >= 0)
1684 {
1685 EV_WIN32_CLOSE_FD (evpipe [0]); 2694 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1686 EV_WIN32_CLOSE_FD (evpipe [1]); 2695 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1687 }
1688 } 2696 }
1689 2697
1690#if EV_USE_SIGNALFD 2698#if EV_USE_SIGNALFD
1691 if (ev_is_active (&sigfd_w)) 2699 if (ev_is_active (&sigfd_w))
1692 close (sigfd); 2700 close (sigfd);
… …
1698#endif 2706#endif
1699 2707
1700 if (backend_fd >= 0) 2708 if (backend_fd >= 0)
1701 close (backend_fd); 2709 close (backend_fd);
1702 2710
2711#if EV_USE_IOCP
2712 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2713#endif
1703#if EV_USE_PORT 2714#if EV_USE_PORT
1704 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2715 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1705#endif 2716#endif
1706#if EV_USE_KQUEUE 2717#if EV_USE_KQUEUE
1707 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2718 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1734 array_free (periodic, EMPTY); 2745 array_free (periodic, EMPTY);
1735#endif 2746#endif
1736#if EV_FORK_ENABLE 2747#if EV_FORK_ENABLE
1737 array_free (fork, EMPTY); 2748 array_free (fork, EMPTY);
1738#endif 2749#endif
2750#if EV_CLEANUP_ENABLE
2751 array_free (cleanup, EMPTY);
2752#endif
1739 array_free (prepare, EMPTY); 2753 array_free (prepare, EMPTY);
1740 array_free (check, EMPTY); 2754 array_free (check, EMPTY);
1741#if EV_ASYNC_ENABLE 2755#if EV_ASYNC_ENABLE
1742 array_free (async, EMPTY); 2756 array_free (async, EMPTY);
1743#endif 2757#endif
1744 2758
1745 backend = 0; 2759 backend = 0;
2760
2761#if EV_MULTIPLICITY
2762 if (ev_is_default_loop (EV_A))
2763#endif
2764 ev_default_loop_ptr = 0;
2765#if EV_MULTIPLICITY
2766 else
2767 ev_free (EV_A);
2768#endif
1746} 2769}
1747 2770
1748#if EV_USE_INOTIFY 2771#if EV_USE_INOTIFY
1749inline_size void infy_fork (EV_P); 2772inline_size void infy_fork (EV_P);
1750#endif 2773#endif
… …
1763#endif 2786#endif
1764#if EV_USE_INOTIFY 2787#if EV_USE_INOTIFY
1765 infy_fork (EV_A); 2788 infy_fork (EV_A);
1766#endif 2789#endif
1767 2790
2791#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1768 if (ev_is_active (&pipe_w)) 2792 if (ev_is_active (&pipe_w))
1769 { 2793 {
1770 /* this "locks" the handlers against writing to the pipe */ 2794 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1771 /* while we modify the fd vars */
1772 sig_pending = 1;
1773#if EV_ASYNC_ENABLE
1774 async_pending = 1;
1775#endif
1776 2795
1777 ev_ref (EV_A); 2796 ev_ref (EV_A);
1778 ev_io_stop (EV_A_ &pipe_w); 2797 ev_io_stop (EV_A_ &pipe_w);
1779 2798
1780#if EV_USE_EVENTFD
1781 if (evfd >= 0)
1782 close (evfd);
1783#endif
1784
1785 if (evpipe [0] >= 0) 2799 if (evpipe [0] >= 0)
1786 {
1787 EV_WIN32_CLOSE_FD (evpipe [0]); 2800 EV_WIN32_CLOSE_FD (evpipe [0]);
1788 EV_WIN32_CLOSE_FD (evpipe [1]);
1789 }
1790 2801
1791 evpipe_init (EV_A); 2802 evpipe_init (EV_A);
1792 /* now iterate over everything, in case we missed something */ 2803 /* iterate over everything, in case we missed something before */
1793 pipecb (EV_A_ &pipe_w, EV_READ); 2804 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1794 } 2805 }
2806#endif
1795 2807
1796 postfork = 0; 2808 postfork = 0;
1797} 2809}
1798 2810
1799#if EV_MULTIPLICITY 2811#if EV_MULTIPLICITY
1800 2812
1801struct ev_loop * 2813struct ev_loop * ecb_cold
1802ev_loop_new (unsigned int flags) 2814ev_loop_new (unsigned int flags) EV_THROW
1803{ 2815{
1804 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2816 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1805 2817
1806 memset (EV_A, 0, sizeof (struct ev_loop)); 2818 memset (EV_A, 0, sizeof (struct ev_loop));
1807 loop_init (EV_A_ flags); 2819 loop_init (EV_A_ flags);
1808 2820
1809 if (ev_backend (EV_A)) 2821 if (ev_backend (EV_A))
1810 return EV_A; 2822 return EV_A;
1811 2823
2824 ev_free (EV_A);
1812 return 0; 2825 return 0;
1813} 2826}
1814 2827
1815void
1816ev_loop_destroy (EV_P)
1817{
1818 loop_destroy (EV_A);
1819 ev_free (loop);
1820}
1821
1822void
1823ev_loop_fork (EV_P)
1824{
1825 postfork = 1; /* must be in line with ev_default_fork */
1826}
1827#endif /* multiplicity */ 2828#endif /* multiplicity */
1828 2829
1829#if EV_VERIFY 2830#if EV_VERIFY
1830static void noinline 2831static void noinline ecb_cold
1831verify_watcher (EV_P_ W w) 2832verify_watcher (EV_P_ W w)
1832{ 2833{
1833 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2834 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1834 2835
1835 if (w->pending) 2836 if (w->pending)
1836 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2837 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1837} 2838}
1838 2839
1839static void noinline 2840static void noinline ecb_cold
1840verify_heap (EV_P_ ANHE *heap, int N) 2841verify_heap (EV_P_ ANHE *heap, int N)
1841{ 2842{
1842 int i; 2843 int i;
1843 2844
1844 for (i = HEAP0; i < N + HEAP0; ++i) 2845 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1849 2850
1850 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2851 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1851 } 2852 }
1852} 2853}
1853 2854
1854static void noinline 2855static void noinline ecb_cold
1855array_verify (EV_P_ W *ws, int cnt) 2856array_verify (EV_P_ W *ws, int cnt)
1856{ 2857{
1857 while (cnt--) 2858 while (cnt--)
1858 { 2859 {
1859 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2860 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1860 verify_watcher (EV_A_ ws [cnt]); 2861 verify_watcher (EV_A_ ws [cnt]);
1861 } 2862 }
1862} 2863}
1863#endif 2864#endif
1864 2865
1865#if EV_MINIMAL < 2 2866#if EV_FEATURE_API
1866void 2867void ecb_cold
1867ev_loop_verify (EV_P) 2868ev_verify (EV_P) EV_THROW
1868{ 2869{
1869#if EV_VERIFY 2870#if EV_VERIFY
1870 int i; 2871 int i;
1871 WL w; 2872 WL w, w2;
1872 2873
1873 assert (activecnt >= -1); 2874 assert (activecnt >= -1);
1874 2875
1875 assert (fdchangemax >= fdchangecnt); 2876 assert (fdchangemax >= fdchangecnt);
1876 for (i = 0; i < fdchangecnt; ++i) 2877 for (i = 0; i < fdchangecnt; ++i)
1877 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2878 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1878 2879
1879 assert (anfdmax >= 0); 2880 assert (anfdmax >= 0);
1880 for (i = 0; i < anfdmax; ++i) 2881 for (i = 0; i < anfdmax; ++i)
2882 {
2883 int j = 0;
2884
1881 for (w = anfds [i].head; w; w = w->next) 2885 for (w = w2 = anfds [i].head; w; w = w->next)
1882 { 2886 {
1883 verify_watcher (EV_A_ (W)w); 2887 verify_watcher (EV_A_ (W)w);
2888
2889 if (j++ & 1)
2890 {
2891 assert (("libev: io watcher list contains a loop", w != w2));
2892 w2 = w2->next;
2893 }
2894
1884 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2895 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1885 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2896 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1886 } 2897 }
2898 }
1887 2899
1888 assert (timermax >= timercnt); 2900 assert (timermax >= timercnt);
1889 verify_heap (EV_A_ timers, timercnt); 2901 verify_heap (EV_A_ timers, timercnt);
1890 2902
1891#if EV_PERIODIC_ENABLE 2903#if EV_PERIODIC_ENABLE
… …
1906#if EV_FORK_ENABLE 2918#if EV_FORK_ENABLE
1907 assert (forkmax >= forkcnt); 2919 assert (forkmax >= forkcnt);
1908 array_verify (EV_A_ (W *)forks, forkcnt); 2920 array_verify (EV_A_ (W *)forks, forkcnt);
1909#endif 2921#endif
1910 2922
2923#if EV_CLEANUP_ENABLE
2924 assert (cleanupmax >= cleanupcnt);
2925 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2926#endif
2927
1911#if EV_ASYNC_ENABLE 2928#if EV_ASYNC_ENABLE
1912 assert (asyncmax >= asynccnt); 2929 assert (asyncmax >= asynccnt);
1913 array_verify (EV_A_ (W *)asyncs, asynccnt); 2930 array_verify (EV_A_ (W *)asyncs, asynccnt);
1914#endif 2931#endif
1915 2932
2933#if EV_PREPARE_ENABLE
1916 assert (preparemax >= preparecnt); 2934 assert (preparemax >= preparecnt);
1917 array_verify (EV_A_ (W *)prepares, preparecnt); 2935 array_verify (EV_A_ (W *)prepares, preparecnt);
2936#endif
1918 2937
2938#if EV_CHECK_ENABLE
1919 assert (checkmax >= checkcnt); 2939 assert (checkmax >= checkcnt);
1920 array_verify (EV_A_ (W *)checks, checkcnt); 2940 array_verify (EV_A_ (W *)checks, checkcnt);
2941#endif
1921 2942
1922# if 0 2943# if 0
2944#if EV_CHILD_ENABLE
1923 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2945 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1924 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2946 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2947#endif
1925# endif 2948# endif
1926#endif 2949#endif
1927} 2950}
1928#endif 2951#endif
1929 2952
1930#if EV_MULTIPLICITY 2953#if EV_MULTIPLICITY
1931struct ev_loop * 2954struct ev_loop * ecb_cold
1932ev_default_loop_init (unsigned int flags)
1933#else 2955#else
1934int 2956int
2957#endif
1935ev_default_loop (unsigned int flags) 2958ev_default_loop (unsigned int flags) EV_THROW
1936#endif
1937{ 2959{
1938 if (!ev_default_loop_ptr) 2960 if (!ev_default_loop_ptr)
1939 { 2961 {
1940#if EV_MULTIPLICITY 2962#if EV_MULTIPLICITY
1941 EV_P = ev_default_loop_ptr = &default_loop_struct; 2963 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1945 2967
1946 loop_init (EV_A_ flags); 2968 loop_init (EV_A_ flags);
1947 2969
1948 if (ev_backend (EV_A)) 2970 if (ev_backend (EV_A))
1949 { 2971 {
1950#ifndef _WIN32 2972#if EV_CHILD_ENABLE
1951 ev_signal_init (&childev, childcb, SIGCHLD); 2973 ev_signal_init (&childev, childcb, SIGCHLD);
1952 ev_set_priority (&childev, EV_MAXPRI); 2974 ev_set_priority (&childev, EV_MAXPRI);
1953 ev_signal_start (EV_A_ &childev); 2975 ev_signal_start (EV_A_ &childev);
1954 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2976 ev_unref (EV_A); /* child watcher should not keep loop alive */
1955#endif 2977#endif
… …
1960 2982
1961 return ev_default_loop_ptr; 2983 return ev_default_loop_ptr;
1962} 2984}
1963 2985
1964void 2986void
1965ev_default_destroy (void) 2987ev_loop_fork (EV_P) EV_THROW
1966{ 2988{
1967#if EV_MULTIPLICITY 2989 postfork = 1;
1968 EV_P = ev_default_loop_ptr;
1969#endif
1970
1971 ev_default_loop_ptr = 0;
1972
1973#ifndef _WIN32
1974 ev_ref (EV_A); /* child watcher */
1975 ev_signal_stop (EV_A_ &childev);
1976#endif
1977
1978 loop_destroy (EV_A);
1979}
1980
1981void
1982ev_default_fork (void)
1983{
1984#if EV_MULTIPLICITY
1985 EV_P = ev_default_loop_ptr;
1986#endif
1987
1988 postfork = 1; /* must be in line with ev_loop_fork */
1989} 2990}
1990 2991
1991/*****************************************************************************/ 2992/*****************************************************************************/
1992 2993
1993void 2994void
… …
1995{ 2996{
1996 EV_CB_INVOKE ((W)w, revents); 2997 EV_CB_INVOKE ((W)w, revents);
1997} 2998}
1998 2999
1999unsigned int 3000unsigned int
2000ev_pending_count (EV_P) 3001ev_pending_count (EV_P) EV_THROW
2001{ 3002{
2002 int pri; 3003 int pri;
2003 unsigned int count = 0; 3004 unsigned int count = 0;
2004 3005
2005 for (pri = NUMPRI; pri--; ) 3006 for (pri = NUMPRI; pri--; )
… …
2009} 3010}
2010 3011
2011void noinline 3012void noinline
2012ev_invoke_pending (EV_P) 3013ev_invoke_pending (EV_P)
2013{ 3014{
2014 int pri; 3015 pendingpri = NUMPRI;
2015 3016
2016 for (pri = NUMPRI; pri--; ) 3017 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3018 {
3019 --pendingpri;
3020
2017 while (pendingcnt [pri]) 3021 while (pendingcnt [pendingpri])
2018 { 3022 {
2019 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3023 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2020 3024
2021 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2022 /* ^ this is no longer true, as pending_w could be here */
2023
2024 p->w->pending = 0; 3025 p->w->pending = 0;
2025 EV_CB_INVOKE (p->w, p->events); 3026 EV_CB_INVOKE (p->w, p->events);
2026 EV_FREQUENT_CHECK; 3027 EV_FREQUENT_CHECK;
2027 } 3028 }
3029 }
2028} 3030}
2029 3031
2030#if EV_IDLE_ENABLE 3032#if EV_IDLE_ENABLE
2031/* make idle watchers pending. this handles the "call-idle */ 3033/* make idle watchers pending. this handles the "call-idle */
2032/* only when higher priorities are idle" logic */ 3034/* only when higher priorities are idle" logic */
… …
2084 EV_FREQUENT_CHECK; 3086 EV_FREQUENT_CHECK;
2085 feed_reverse (EV_A_ (W)w); 3087 feed_reverse (EV_A_ (W)w);
2086 } 3088 }
2087 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 3089 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2088 3090
2089 feed_reverse_done (EV_A_ EV_TIMEOUT); 3091 feed_reverse_done (EV_A_ EV_TIMER);
2090 } 3092 }
2091} 3093}
2092 3094
2093#if EV_PERIODIC_ENABLE 3095#if EV_PERIODIC_ENABLE
3096
3097static void noinline
3098periodic_recalc (EV_P_ ev_periodic *w)
3099{
3100 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3101 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3102
3103 /* the above almost always errs on the low side */
3104 while (at <= ev_rt_now)
3105 {
3106 ev_tstamp nat = at + w->interval;
3107
3108 /* when resolution fails us, we use ev_rt_now */
3109 if (expect_false (nat == at))
3110 {
3111 at = ev_rt_now;
3112 break;
3113 }
3114
3115 at = nat;
3116 }
3117
3118 ev_at (w) = at;
3119}
3120
2094/* make periodics pending */ 3121/* make periodics pending */
2095inline_size void 3122inline_size void
2096periodics_reify (EV_P) 3123periodics_reify (EV_P)
2097{ 3124{
2098 EV_FREQUENT_CHECK; 3125 EV_FREQUENT_CHECK;
2099 3126
2100 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3127 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2101 { 3128 {
2102 int feed_count = 0;
2103
2104 do 3129 do
2105 { 3130 {
2106 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3131 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2107 3132
2108 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3133 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2117 ANHE_at_cache (periodics [HEAP0]); 3142 ANHE_at_cache (periodics [HEAP0]);
2118 downheap (periodics, periodiccnt, HEAP0); 3143 downheap (periodics, periodiccnt, HEAP0);
2119 } 3144 }
2120 else if (w->interval) 3145 else if (w->interval)
2121 { 3146 {
2122 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3147 periodic_recalc (EV_A_ w);
2123 /* if next trigger time is not sufficiently in the future, put it there */
2124 /* this might happen because of floating point inexactness */
2125 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2126 {
2127 ev_at (w) += w->interval;
2128
2129 /* if interval is unreasonably low we might still have a time in the past */
2130 /* so correct this. this will make the periodic very inexact, but the user */
2131 /* has effectively asked to get triggered more often than possible */
2132 if (ev_at (w) < ev_rt_now)
2133 ev_at (w) = ev_rt_now;
2134 }
2135
2136 ANHE_at_cache (periodics [HEAP0]); 3148 ANHE_at_cache (periodics [HEAP0]);
2137 downheap (periodics, periodiccnt, HEAP0); 3149 downheap (periodics, periodiccnt, HEAP0);
2138 } 3150 }
2139 else 3151 else
2140 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3152 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2147 feed_reverse_done (EV_A_ EV_PERIODIC); 3159 feed_reverse_done (EV_A_ EV_PERIODIC);
2148 } 3160 }
2149} 3161}
2150 3162
2151/* simply recalculate all periodics */ 3163/* simply recalculate all periodics */
2152/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 3164/* TODO: maybe ensure that at least one event happens when jumping forward? */
2153static void noinline 3165static void noinline ecb_cold
2154periodics_reschedule (EV_P) 3166periodics_reschedule (EV_P)
2155{ 3167{
2156 int i; 3168 int i;
2157 3169
2158 /* adjust periodics after time jump */ 3170 /* adjust periodics after time jump */
… …
2161 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3173 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2162 3174
2163 if (w->reschedule_cb) 3175 if (w->reschedule_cb)
2164 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3176 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2165 else if (w->interval) 3177 else if (w->interval)
2166 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3178 periodic_recalc (EV_A_ w);
2167 3179
2168 ANHE_at_cache (periodics [i]); 3180 ANHE_at_cache (periodics [i]);
2169 } 3181 }
2170 3182
2171 reheap (periodics, periodiccnt); 3183 reheap (periodics, periodiccnt);
2172} 3184}
2173#endif 3185#endif
2174 3186
2175/* adjust all timers by a given offset */ 3187/* adjust all timers by a given offset */
2176static void noinline 3188static void noinline ecb_cold
2177timers_reschedule (EV_P_ ev_tstamp adjust) 3189timers_reschedule (EV_P_ ev_tstamp adjust)
2178{ 3190{
2179 int i; 3191 int i;
2180 3192
2181 for (i = 0; i < timercnt; ++i) 3193 for (i = 0; i < timercnt; ++i)
… …
2218 * doesn't hurt either as we only do this on time-jumps or 3230 * doesn't hurt either as we only do this on time-jumps or
2219 * in the unlikely event of having been preempted here. 3231 * in the unlikely event of having been preempted here.
2220 */ 3232 */
2221 for (i = 4; --i; ) 3233 for (i = 4; --i; )
2222 { 3234 {
3235 ev_tstamp diff;
2223 rtmn_diff = ev_rt_now - mn_now; 3236 rtmn_diff = ev_rt_now - mn_now;
2224 3237
3238 diff = odiff - rtmn_diff;
3239
2225 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3240 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2226 return; /* all is well */ 3241 return; /* all is well */
2227 3242
2228 ev_rt_now = ev_time (); 3243 ev_rt_now = ev_time ();
2229 mn_now = get_clock (); 3244 mn_now = get_clock ();
2230 now_floor = mn_now; 3245 now_floor = mn_now;
… …
2252 3267
2253 mn_now = ev_rt_now; 3268 mn_now = ev_rt_now;
2254 } 3269 }
2255} 3270}
2256 3271
2257void 3272int
2258ev_loop (EV_P_ int flags) 3273ev_run (EV_P_ int flags)
2259{ 3274{
2260#if EV_MINIMAL < 2 3275#if EV_FEATURE_API
2261 ++loop_depth; 3276 ++loop_depth;
2262#endif 3277#endif
2263 3278
2264 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3279 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2265 3280
2266 loop_done = EVUNLOOP_CANCEL; 3281 loop_done = EVBREAK_CANCEL;
2267 3282
2268 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3283 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2269 3284
2270 do 3285 do
2271 { 3286 {
2272#if EV_VERIFY >= 2 3287#if EV_VERIFY >= 2
2273 ev_loop_verify (EV_A); 3288 ev_verify (EV_A);
2274#endif 3289#endif
2275 3290
2276#ifndef _WIN32 3291#ifndef _WIN32
2277 if (expect_false (curpid)) /* penalise the forking check even more */ 3292 if (expect_false (curpid)) /* penalise the forking check even more */
2278 if (expect_false (getpid () != curpid)) 3293 if (expect_false (getpid () != curpid))
… …
2290 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3305 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2291 EV_INVOKE_PENDING; 3306 EV_INVOKE_PENDING;
2292 } 3307 }
2293#endif 3308#endif
2294 3309
3310#if EV_PREPARE_ENABLE
2295 /* queue prepare watchers (and execute them) */ 3311 /* queue prepare watchers (and execute them) */
2296 if (expect_false (preparecnt)) 3312 if (expect_false (preparecnt))
2297 { 3313 {
2298 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3314 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2299 EV_INVOKE_PENDING; 3315 EV_INVOKE_PENDING;
2300 } 3316 }
3317#endif
2301 3318
2302 if (expect_false (loop_done)) 3319 if (expect_false (loop_done))
2303 break; 3320 break;
2304 3321
2305 /* we might have forked, so reify kernel state if necessary */ 3322 /* we might have forked, so reify kernel state if necessary */
… …
2312 /* calculate blocking time */ 3329 /* calculate blocking time */
2313 { 3330 {
2314 ev_tstamp waittime = 0.; 3331 ev_tstamp waittime = 0.;
2315 ev_tstamp sleeptime = 0.; 3332 ev_tstamp sleeptime = 0.;
2316 3333
3334 /* remember old timestamp for io_blocktime calculation */
3335 ev_tstamp prev_mn_now = mn_now;
3336
3337 /* update time to cancel out callback processing overhead */
3338 time_update (EV_A_ 1e100);
3339
3340 /* from now on, we want a pipe-wake-up */
3341 pipe_write_wanted = 1;
3342
3343 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3344
2317 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3345 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2318 { 3346 {
2319 /* remember old timestamp for io_blocktime calculation */
2320 ev_tstamp prev_mn_now = mn_now;
2321
2322 /* update time to cancel out callback processing overhead */
2323 time_update (EV_A_ 1e100);
2324
2325 waittime = MAX_BLOCKTIME; 3347 waittime = MAX_BLOCKTIME;
2326 3348
2327 if (timercnt) 3349 if (timercnt)
2328 { 3350 {
2329 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3351 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2330 if (waittime > to) waittime = to; 3352 if (waittime > to) waittime = to;
2331 } 3353 }
2332 3354
2333#if EV_PERIODIC_ENABLE 3355#if EV_PERIODIC_ENABLE
2334 if (periodiccnt) 3356 if (periodiccnt)
2335 { 3357 {
2336 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3358 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2337 if (waittime > to) waittime = to; 3359 if (waittime > to) waittime = to;
2338 } 3360 }
2339#endif 3361#endif
2340 3362
2341 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3363 /* don't let timeouts decrease the waittime below timeout_blocktime */
2342 if (expect_false (waittime < timeout_blocktime)) 3364 if (expect_false (waittime < timeout_blocktime))
2343 waittime = timeout_blocktime; 3365 waittime = timeout_blocktime;
3366
3367 /* at this point, we NEED to wait, so we have to ensure */
3368 /* to pass a minimum nonzero value to the backend */
3369 if (expect_false (waittime < backend_mintime))
3370 waittime = backend_mintime;
2344 3371
2345 /* extra check because io_blocktime is commonly 0 */ 3372 /* extra check because io_blocktime is commonly 0 */
2346 if (expect_false (io_blocktime)) 3373 if (expect_false (io_blocktime))
2347 { 3374 {
2348 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3375 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2349 3376
2350 if (sleeptime > waittime - backend_fudge) 3377 if (sleeptime > waittime - backend_mintime)
2351 sleeptime = waittime - backend_fudge; 3378 sleeptime = waittime - backend_mintime;
2352 3379
2353 if (expect_true (sleeptime > 0.)) 3380 if (expect_true (sleeptime > 0.))
2354 { 3381 {
2355 ev_sleep (sleeptime); 3382 ev_sleep (sleeptime);
2356 waittime -= sleeptime; 3383 waittime -= sleeptime;
2357 } 3384 }
2358 } 3385 }
2359 } 3386 }
2360 3387
2361#if EV_MINIMAL < 2 3388#if EV_FEATURE_API
2362 ++loop_count; 3389 ++loop_count;
2363#endif 3390#endif
2364 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3391 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2365 backend_poll (EV_A_ waittime); 3392 backend_poll (EV_A_ waittime);
2366 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3393 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3394
3395 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3396
3397 ECB_MEMORY_FENCE_ACQUIRE;
3398 if (pipe_write_skipped)
3399 {
3400 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3401 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3402 }
3403
2367 3404
2368 /* update ev_rt_now, do magic */ 3405 /* update ev_rt_now, do magic */
2369 time_update (EV_A_ waittime + sleeptime); 3406 time_update (EV_A_ waittime + sleeptime);
2370 } 3407 }
2371 3408
… …
2378#if EV_IDLE_ENABLE 3415#if EV_IDLE_ENABLE
2379 /* queue idle watchers unless other events are pending */ 3416 /* queue idle watchers unless other events are pending */
2380 idle_reify (EV_A); 3417 idle_reify (EV_A);
2381#endif 3418#endif
2382 3419
3420#if EV_CHECK_ENABLE
2383 /* queue check watchers, to be executed first */ 3421 /* queue check watchers, to be executed first */
2384 if (expect_false (checkcnt)) 3422 if (expect_false (checkcnt))
2385 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3423 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3424#endif
2386 3425
2387 EV_INVOKE_PENDING; 3426 EV_INVOKE_PENDING;
2388 } 3427 }
2389 while (expect_true ( 3428 while (expect_true (
2390 activecnt 3429 activecnt
2391 && !loop_done 3430 && !loop_done
2392 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3431 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2393 )); 3432 ));
2394 3433
2395 if (loop_done == EVUNLOOP_ONE) 3434 if (loop_done == EVBREAK_ONE)
2396 loop_done = EVUNLOOP_CANCEL; 3435 loop_done = EVBREAK_CANCEL;
2397 3436
2398#if EV_MINIMAL < 2 3437#if EV_FEATURE_API
2399 --loop_depth; 3438 --loop_depth;
2400#endif 3439#endif
3440
3441 return activecnt;
2401} 3442}
2402 3443
2403void 3444void
2404ev_unloop (EV_P_ int how) 3445ev_break (EV_P_ int how) EV_THROW
2405{ 3446{
2406 loop_done = how; 3447 loop_done = how;
2407} 3448}
2408 3449
2409void 3450void
2410ev_ref (EV_P) 3451ev_ref (EV_P) EV_THROW
2411{ 3452{
2412 ++activecnt; 3453 ++activecnt;
2413} 3454}
2414 3455
2415void 3456void
2416ev_unref (EV_P) 3457ev_unref (EV_P) EV_THROW
2417{ 3458{
2418 --activecnt; 3459 --activecnt;
2419} 3460}
2420 3461
2421void 3462void
2422ev_now_update (EV_P) 3463ev_now_update (EV_P) EV_THROW
2423{ 3464{
2424 time_update (EV_A_ 1e100); 3465 time_update (EV_A_ 1e100);
2425} 3466}
2426 3467
2427void 3468void
2428ev_suspend (EV_P) 3469ev_suspend (EV_P) EV_THROW
2429{ 3470{
2430 ev_now_update (EV_A); 3471 ev_now_update (EV_A);
2431} 3472}
2432 3473
2433void 3474void
2434ev_resume (EV_P) 3475ev_resume (EV_P) EV_THROW
2435{ 3476{
2436 ev_tstamp mn_prev = mn_now; 3477 ev_tstamp mn_prev = mn_now;
2437 3478
2438 ev_now_update (EV_A); 3479 ev_now_update (EV_A);
2439 timers_reschedule (EV_A_ mn_now - mn_prev); 3480 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2478 w->pending = 0; 3519 w->pending = 0;
2479 } 3520 }
2480} 3521}
2481 3522
2482int 3523int
2483ev_clear_pending (EV_P_ void *w) 3524ev_clear_pending (EV_P_ void *w) EV_THROW
2484{ 3525{
2485 W w_ = (W)w; 3526 W w_ = (W)w;
2486 int pending = w_->pending; 3527 int pending = w_->pending;
2487 3528
2488 if (expect_true (pending)) 3529 if (expect_true (pending))
… …
2521} 3562}
2522 3563
2523/*****************************************************************************/ 3564/*****************************************************************************/
2524 3565
2525void noinline 3566void noinline
2526ev_io_start (EV_P_ ev_io *w) 3567ev_io_start (EV_P_ ev_io *w) EV_THROW
2527{ 3568{
2528 int fd = w->fd; 3569 int fd = w->fd;
2529 3570
2530 if (expect_false (ev_is_active (w))) 3571 if (expect_false (ev_is_active (w)))
2531 return; 3572 return;
… …
2537 3578
2538 ev_start (EV_A_ (W)w, 1); 3579 ev_start (EV_A_ (W)w, 1);
2539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3580 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2540 wlist_add (&anfds[fd].head, (WL)w); 3581 wlist_add (&anfds[fd].head, (WL)w);
2541 3582
3583 /* common bug, apparently */
3584 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3585
2542 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3586 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2543 w->events &= ~EV__IOFDSET; 3587 w->events &= ~EV__IOFDSET;
2544 3588
2545 EV_FREQUENT_CHECK; 3589 EV_FREQUENT_CHECK;
2546} 3590}
2547 3591
2548void noinline 3592void noinline
2549ev_io_stop (EV_P_ ev_io *w) 3593ev_io_stop (EV_P_ ev_io *w) EV_THROW
2550{ 3594{
2551 clear_pending (EV_A_ (W)w); 3595 clear_pending (EV_A_ (W)w);
2552 if (expect_false (!ev_is_active (w))) 3596 if (expect_false (!ev_is_active (w)))
2553 return; 3597 return;
2554 3598
… …
2557 EV_FREQUENT_CHECK; 3601 EV_FREQUENT_CHECK;
2558 3602
2559 wlist_del (&anfds[w->fd].head, (WL)w); 3603 wlist_del (&anfds[w->fd].head, (WL)w);
2560 ev_stop (EV_A_ (W)w); 3604 ev_stop (EV_A_ (W)w);
2561 3605
2562 fd_change (EV_A_ w->fd, 1); 3606 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2563 3607
2564 EV_FREQUENT_CHECK; 3608 EV_FREQUENT_CHECK;
2565} 3609}
2566 3610
2567void noinline 3611void noinline
2568ev_timer_start (EV_P_ ev_timer *w) 3612ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2569{ 3613{
2570 if (expect_false (ev_is_active (w))) 3614 if (expect_false (ev_is_active (w)))
2571 return; 3615 return;
2572 3616
2573 ev_at (w) += mn_now; 3617 ev_at (w) += mn_now;
… …
2587 3631
2588 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3632 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2589} 3633}
2590 3634
2591void noinline 3635void noinline
2592ev_timer_stop (EV_P_ ev_timer *w) 3636ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2593{ 3637{
2594 clear_pending (EV_A_ (W)w); 3638 clear_pending (EV_A_ (W)w);
2595 if (expect_false (!ev_is_active (w))) 3639 if (expect_false (!ev_is_active (w)))
2596 return; 3640 return;
2597 3641
… …
2617 3661
2618 EV_FREQUENT_CHECK; 3662 EV_FREQUENT_CHECK;
2619} 3663}
2620 3664
2621void noinline 3665void noinline
2622ev_timer_again (EV_P_ ev_timer *w) 3666ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2623{ 3667{
2624 EV_FREQUENT_CHECK; 3668 EV_FREQUENT_CHECK;
3669
3670 clear_pending (EV_A_ (W)w);
2625 3671
2626 if (ev_is_active (w)) 3672 if (ev_is_active (w))
2627 { 3673 {
2628 if (w->repeat) 3674 if (w->repeat)
2629 { 3675 {
… …
2642 3688
2643 EV_FREQUENT_CHECK; 3689 EV_FREQUENT_CHECK;
2644} 3690}
2645 3691
2646ev_tstamp 3692ev_tstamp
2647ev_timer_remaining (EV_P_ ev_timer *w) 3693ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2648{ 3694{
2649 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3695 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2650} 3696}
2651 3697
2652#if EV_PERIODIC_ENABLE 3698#if EV_PERIODIC_ENABLE
2653void noinline 3699void noinline
2654ev_periodic_start (EV_P_ ev_periodic *w) 3700ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2655{ 3701{
2656 if (expect_false (ev_is_active (w))) 3702 if (expect_false (ev_is_active (w)))
2657 return; 3703 return;
2658 3704
2659 if (w->reschedule_cb) 3705 if (w->reschedule_cb)
2660 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3706 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2661 else if (w->interval) 3707 else if (w->interval)
2662 { 3708 {
2663 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3709 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2664 /* this formula differs from the one in periodic_reify because we do not always round up */ 3710 periodic_recalc (EV_A_ w);
2665 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2666 } 3711 }
2667 else 3712 else
2668 ev_at (w) = w->offset; 3713 ev_at (w) = w->offset;
2669 3714
2670 EV_FREQUENT_CHECK; 3715 EV_FREQUENT_CHECK;
… …
2680 3725
2681 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3726 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2682} 3727}
2683 3728
2684void noinline 3729void noinline
2685ev_periodic_stop (EV_P_ ev_periodic *w) 3730ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2686{ 3731{
2687 clear_pending (EV_A_ (W)w); 3732 clear_pending (EV_A_ (W)w);
2688 if (expect_false (!ev_is_active (w))) 3733 if (expect_false (!ev_is_active (w)))
2689 return; 3734 return;
2690 3735
… …
2708 3753
2709 EV_FREQUENT_CHECK; 3754 EV_FREQUENT_CHECK;
2710} 3755}
2711 3756
2712void noinline 3757void noinline
2713ev_periodic_again (EV_P_ ev_periodic *w) 3758ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2714{ 3759{
2715 /* TODO: use adjustheap and recalculation */ 3760 /* TODO: use adjustheap and recalculation */
2716 ev_periodic_stop (EV_A_ w); 3761 ev_periodic_stop (EV_A_ w);
2717 ev_periodic_start (EV_A_ w); 3762 ev_periodic_start (EV_A_ w);
2718} 3763}
… …
2720 3765
2721#ifndef SA_RESTART 3766#ifndef SA_RESTART
2722# define SA_RESTART 0 3767# define SA_RESTART 0
2723#endif 3768#endif
2724 3769
3770#if EV_SIGNAL_ENABLE
3771
2725void noinline 3772void noinline
2726ev_signal_start (EV_P_ ev_signal *w) 3773ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2727{ 3774{
2728 if (expect_false (ev_is_active (w))) 3775 if (expect_false (ev_is_active (w)))
2729 return; 3776 return;
2730 3777
2731 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3778 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2733#if EV_MULTIPLICITY 3780#if EV_MULTIPLICITY
2734 assert (("libev: a signal must not be attached to two different loops", 3781 assert (("libev: a signal must not be attached to two different loops",
2735 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3782 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2736 3783
2737 signals [w->signum - 1].loop = EV_A; 3784 signals [w->signum - 1].loop = EV_A;
3785 ECB_MEMORY_FENCE_RELEASE;
2738#endif 3786#endif
2739 3787
2740 EV_FREQUENT_CHECK; 3788 EV_FREQUENT_CHECK;
2741 3789
2742#if EV_USE_SIGNALFD 3790#if EV_USE_SIGNALFD
… …
2789 sa.sa_handler = ev_sighandler; 3837 sa.sa_handler = ev_sighandler;
2790 sigfillset (&sa.sa_mask); 3838 sigfillset (&sa.sa_mask);
2791 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3839 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2792 sigaction (w->signum, &sa, 0); 3840 sigaction (w->signum, &sa, 0);
2793 3841
3842 if (origflags & EVFLAG_NOSIGMASK)
3843 {
2794 sigemptyset (&sa.sa_mask); 3844 sigemptyset (&sa.sa_mask);
2795 sigaddset (&sa.sa_mask, w->signum); 3845 sigaddset (&sa.sa_mask, w->signum);
2796 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3846 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3847 }
2797#endif 3848#endif
2798 } 3849 }
2799 3850
2800 EV_FREQUENT_CHECK; 3851 EV_FREQUENT_CHECK;
2801} 3852}
2802 3853
2803void noinline 3854void noinline
2804ev_signal_stop (EV_P_ ev_signal *w) 3855ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2805{ 3856{
2806 clear_pending (EV_A_ (W)w); 3857 clear_pending (EV_A_ (W)w);
2807 if (expect_false (!ev_is_active (w))) 3858 if (expect_false (!ev_is_active (w)))
2808 return; 3859 return;
2809 3860
… …
2835 } 3886 }
2836 3887
2837 EV_FREQUENT_CHECK; 3888 EV_FREQUENT_CHECK;
2838} 3889}
2839 3890
3891#endif
3892
3893#if EV_CHILD_ENABLE
3894
2840void 3895void
2841ev_child_start (EV_P_ ev_child *w) 3896ev_child_start (EV_P_ ev_child *w) EV_THROW
2842{ 3897{
2843#if EV_MULTIPLICITY 3898#if EV_MULTIPLICITY
2844 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3899 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2845#endif 3900#endif
2846 if (expect_false (ev_is_active (w))) 3901 if (expect_false (ev_is_active (w)))
2847 return; 3902 return;
2848 3903
2849 EV_FREQUENT_CHECK; 3904 EV_FREQUENT_CHECK;
2850 3905
2851 ev_start (EV_A_ (W)w, 1); 3906 ev_start (EV_A_ (W)w, 1);
2852 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3907 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2853 3908
2854 EV_FREQUENT_CHECK; 3909 EV_FREQUENT_CHECK;
2855} 3910}
2856 3911
2857void 3912void
2858ev_child_stop (EV_P_ ev_child *w) 3913ev_child_stop (EV_P_ ev_child *w) EV_THROW
2859{ 3914{
2860 clear_pending (EV_A_ (W)w); 3915 clear_pending (EV_A_ (W)w);
2861 if (expect_false (!ev_is_active (w))) 3916 if (expect_false (!ev_is_active (w)))
2862 return; 3917 return;
2863 3918
2864 EV_FREQUENT_CHECK; 3919 EV_FREQUENT_CHECK;
2865 3920
2866 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3921 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2867 ev_stop (EV_A_ (W)w); 3922 ev_stop (EV_A_ (W)w);
2868 3923
2869 EV_FREQUENT_CHECK; 3924 EV_FREQUENT_CHECK;
2870} 3925}
3926
3927#endif
2871 3928
2872#if EV_STAT_ENABLE 3929#if EV_STAT_ENABLE
2873 3930
2874# ifdef _WIN32 3931# ifdef _WIN32
2875# undef lstat 3932# undef lstat
… …
2888# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3945# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2889 3946
2890static void noinline 3947static void noinline
2891infy_add (EV_P_ ev_stat *w) 3948infy_add (EV_P_ ev_stat *w)
2892{ 3949{
2893 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3950 w->wd = inotify_add_watch (fs_fd, w->path,
3951 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3952 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3953 | IN_DONT_FOLLOW | IN_MASK_ADD);
2894 3954
2895 if (w->wd >= 0) 3955 if (w->wd >= 0)
2896 { 3956 {
2897 struct statfs sfs; 3957 struct statfs sfs;
2898 3958
… …
2902 3962
2903 if (!fs_2625) 3963 if (!fs_2625)
2904 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3964 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2905 else if (!statfs (w->path, &sfs) 3965 else if (!statfs (w->path, &sfs)
2906 && (sfs.f_type == 0x1373 /* devfs */ 3966 && (sfs.f_type == 0x1373 /* devfs */
3967 || sfs.f_type == 0x4006 /* fat */
3968 || sfs.f_type == 0x4d44 /* msdos */
2907 || sfs.f_type == 0xEF53 /* ext2/3 */ 3969 || sfs.f_type == 0xEF53 /* ext2/3 */
3970 || sfs.f_type == 0x72b6 /* jffs2 */
3971 || sfs.f_type == 0x858458f6 /* ramfs */
3972 || sfs.f_type == 0x5346544e /* ntfs */
2908 || sfs.f_type == 0x3153464a /* jfs */ 3973 || sfs.f_type == 0x3153464a /* jfs */
3974 || sfs.f_type == 0x9123683e /* btrfs */
2909 || sfs.f_type == 0x52654973 /* reiser3 */ 3975 || sfs.f_type == 0x52654973 /* reiser3 */
2910 || sfs.f_type == 0x01021994 /* tempfs */ 3976 || sfs.f_type == 0x01021994 /* tmpfs */
2911 || sfs.f_type == 0x58465342 /* xfs */)) 3977 || sfs.f_type == 0x58465342 /* xfs */))
2912 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3978 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2913 else 3979 else
2914 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3980 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2915 } 3981 }
… …
2936 if (!pend || pend == path) 4002 if (!pend || pend == path)
2937 break; 4003 break;
2938 4004
2939 *pend = 0; 4005 *pend = 0;
2940 w->wd = inotify_add_watch (fs_fd, path, mask); 4006 w->wd = inotify_add_watch (fs_fd, path, mask);
2941 } 4007 }
2942 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 4008 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2943 } 4009 }
2944 } 4010 }
2945 4011
2946 if (w->wd >= 0) 4012 if (w->wd >= 0)
2947 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4013 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2948 4014
2949 /* now re-arm timer, if required */ 4015 /* now re-arm timer, if required */
2950 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4016 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2951 ev_timer_again (EV_A_ &w->timer); 4017 ev_timer_again (EV_A_ &w->timer);
2952 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4018 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2960 4026
2961 if (wd < 0) 4027 if (wd < 0)
2962 return; 4028 return;
2963 4029
2964 w->wd = -2; 4030 w->wd = -2;
2965 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 4031 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2966 wlist_del (&fs_hash [slot].head, (WL)w); 4032 wlist_del (&fs_hash [slot].head, (WL)w);
2967 4033
2968 /* remove this watcher, if others are watching it, they will rearm */ 4034 /* remove this watcher, if others are watching it, they will rearm */
2969 inotify_rm_watch (fs_fd, wd); 4035 inotify_rm_watch (fs_fd, wd);
2970} 4036}
… …
2972static void noinline 4038static void noinline
2973infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4039infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2974{ 4040{
2975 if (slot < 0) 4041 if (slot < 0)
2976 /* overflow, need to check for all hash slots */ 4042 /* overflow, need to check for all hash slots */
2977 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4043 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2978 infy_wd (EV_A_ slot, wd, ev); 4044 infy_wd (EV_A_ slot, wd, ev);
2979 else 4045 else
2980 { 4046 {
2981 WL w_; 4047 WL w_;
2982 4048
2983 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 4049 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2984 { 4050 {
2985 ev_stat *w = (ev_stat *)w_; 4051 ev_stat *w = (ev_stat *)w_;
2986 w_ = w_->next; /* lets us remove this watcher and all before it */ 4052 w_ = w_->next; /* lets us remove this watcher and all before it */
2987 4053
2988 if (w->wd == wd || wd == -1) 4054 if (w->wd == wd || wd == -1)
2989 { 4055 {
2990 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 4056 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2991 { 4057 {
2992 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4058 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2993 w->wd = -1; 4059 w->wd = -1;
2994 infy_add (EV_A_ w); /* re-add, no matter what */ 4060 infy_add (EV_A_ w); /* re-add, no matter what */
2995 } 4061 }
2996 4062
2997 stat_timer_cb (EV_A_ &w->timer, 0); 4063 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3013 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4079 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3014 ofs += sizeof (struct inotify_event) + ev->len; 4080 ofs += sizeof (struct inotify_event) + ev->len;
3015 } 4081 }
3016} 4082}
3017 4083
3018inline_size unsigned int
3019ev_linux_version (void)
3020{
3021 struct utsname buf;
3022 unsigned int v;
3023 int i;
3024 char *p = buf.release;
3025
3026 if (uname (&buf))
3027 return 0;
3028
3029 for (i = 3+1; --i; )
3030 {
3031 unsigned int c = 0;
3032
3033 for (;;)
3034 {
3035 if (*p >= '0' && *p <= '9')
3036 c = c * 10 + *p++ - '0';
3037 else
3038 {
3039 p += *p == '.';
3040 break;
3041 }
3042 }
3043
3044 v = (v << 8) | c;
3045 }
3046
3047 return v;
3048}
3049
3050inline_size void 4084inline_size void ecb_cold
3051ev_check_2625 (EV_P) 4085ev_check_2625 (EV_P)
3052{ 4086{
3053 /* kernels < 2.6.25 are borked 4087 /* kernels < 2.6.25 are borked
3054 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4088 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3055 */ 4089 */
… …
3060} 4094}
3061 4095
3062inline_size int 4096inline_size int
3063infy_newfd (void) 4097infy_newfd (void)
3064{ 4098{
3065#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4099#if defined IN_CLOEXEC && defined IN_NONBLOCK
3066 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4100 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3067 if (fd >= 0) 4101 if (fd >= 0)
3068 return fd; 4102 return fd;
3069#endif 4103#endif
3070 return inotify_init (); 4104 return inotify_init ();
… …
3111 ev_io_set (&fs_w, fs_fd, EV_READ); 4145 ev_io_set (&fs_w, fs_fd, EV_READ);
3112 ev_io_start (EV_A_ &fs_w); 4146 ev_io_start (EV_A_ &fs_w);
3113 ev_unref (EV_A); 4147 ev_unref (EV_A);
3114 } 4148 }
3115 4149
3116 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4150 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3117 { 4151 {
3118 WL w_ = fs_hash [slot].head; 4152 WL w_ = fs_hash [slot].head;
3119 fs_hash [slot].head = 0; 4153 fs_hash [slot].head = 0;
3120 4154
3121 while (w_) 4155 while (w_)
… …
3145#else 4179#else
3146# define EV_LSTAT(p,b) lstat (p, b) 4180# define EV_LSTAT(p,b) lstat (p, b)
3147#endif 4181#endif
3148 4182
3149void 4183void
3150ev_stat_stat (EV_P_ ev_stat *w) 4184ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3151{ 4185{
3152 if (lstat (w->path, &w->attr) < 0) 4186 if (lstat (w->path, &w->attr) < 0)
3153 w->attr.st_nlink = 0; 4187 w->attr.st_nlink = 0;
3154 else if (!w->attr.st_nlink) 4188 else if (!w->attr.st_nlink)
3155 w->attr.st_nlink = 1; 4189 w->attr.st_nlink = 1;
… …
3194 ev_feed_event (EV_A_ w, EV_STAT); 4228 ev_feed_event (EV_A_ w, EV_STAT);
3195 } 4229 }
3196} 4230}
3197 4231
3198void 4232void
3199ev_stat_start (EV_P_ ev_stat *w) 4233ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3200{ 4234{
3201 if (expect_false (ev_is_active (w))) 4235 if (expect_false (ev_is_active (w)))
3202 return; 4236 return;
3203 4237
3204 ev_stat_stat (EV_A_ w); 4238 ev_stat_stat (EV_A_ w);
… …
3225 4259
3226 EV_FREQUENT_CHECK; 4260 EV_FREQUENT_CHECK;
3227} 4261}
3228 4262
3229void 4263void
3230ev_stat_stop (EV_P_ ev_stat *w) 4264ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3231{ 4265{
3232 clear_pending (EV_A_ (W)w); 4266 clear_pending (EV_A_ (W)w);
3233 if (expect_false (!ev_is_active (w))) 4267 if (expect_false (!ev_is_active (w)))
3234 return; 4268 return;
3235 4269
… …
3251} 4285}
3252#endif 4286#endif
3253 4287
3254#if EV_IDLE_ENABLE 4288#if EV_IDLE_ENABLE
3255void 4289void
3256ev_idle_start (EV_P_ ev_idle *w) 4290ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3257{ 4291{
3258 if (expect_false (ev_is_active (w))) 4292 if (expect_false (ev_is_active (w)))
3259 return; 4293 return;
3260 4294
3261 pri_adjust (EV_A_ (W)w); 4295 pri_adjust (EV_A_ (W)w);
… …
3274 4308
3275 EV_FREQUENT_CHECK; 4309 EV_FREQUENT_CHECK;
3276} 4310}
3277 4311
3278void 4312void
3279ev_idle_stop (EV_P_ ev_idle *w) 4313ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3280{ 4314{
3281 clear_pending (EV_A_ (W)w); 4315 clear_pending (EV_A_ (W)w);
3282 if (expect_false (!ev_is_active (w))) 4316 if (expect_false (!ev_is_active (w)))
3283 return; 4317 return;
3284 4318
… …
3296 4330
3297 EV_FREQUENT_CHECK; 4331 EV_FREQUENT_CHECK;
3298} 4332}
3299#endif 4333#endif
3300 4334
4335#if EV_PREPARE_ENABLE
3301void 4336void
3302ev_prepare_start (EV_P_ ev_prepare *w) 4337ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3303{ 4338{
3304 if (expect_false (ev_is_active (w))) 4339 if (expect_false (ev_is_active (w)))
3305 return; 4340 return;
3306 4341
3307 EV_FREQUENT_CHECK; 4342 EV_FREQUENT_CHECK;
… …
3312 4347
3313 EV_FREQUENT_CHECK; 4348 EV_FREQUENT_CHECK;
3314} 4349}
3315 4350
3316void 4351void
3317ev_prepare_stop (EV_P_ ev_prepare *w) 4352ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3318{ 4353{
3319 clear_pending (EV_A_ (W)w); 4354 clear_pending (EV_A_ (W)w);
3320 if (expect_false (!ev_is_active (w))) 4355 if (expect_false (!ev_is_active (w)))
3321 return; 4356 return;
3322 4357
… …
3331 4366
3332 ev_stop (EV_A_ (W)w); 4367 ev_stop (EV_A_ (W)w);
3333 4368
3334 EV_FREQUENT_CHECK; 4369 EV_FREQUENT_CHECK;
3335} 4370}
4371#endif
3336 4372
4373#if EV_CHECK_ENABLE
3337void 4374void
3338ev_check_start (EV_P_ ev_check *w) 4375ev_check_start (EV_P_ ev_check *w) EV_THROW
3339{ 4376{
3340 if (expect_false (ev_is_active (w))) 4377 if (expect_false (ev_is_active (w)))
3341 return; 4378 return;
3342 4379
3343 EV_FREQUENT_CHECK; 4380 EV_FREQUENT_CHECK;
… …
3348 4385
3349 EV_FREQUENT_CHECK; 4386 EV_FREQUENT_CHECK;
3350} 4387}
3351 4388
3352void 4389void
3353ev_check_stop (EV_P_ ev_check *w) 4390ev_check_stop (EV_P_ ev_check *w) EV_THROW
3354{ 4391{
3355 clear_pending (EV_A_ (W)w); 4392 clear_pending (EV_A_ (W)w);
3356 if (expect_false (!ev_is_active (w))) 4393 if (expect_false (!ev_is_active (w)))
3357 return; 4394 return;
3358 4395
… …
3367 4404
3368 ev_stop (EV_A_ (W)w); 4405 ev_stop (EV_A_ (W)w);
3369 4406
3370 EV_FREQUENT_CHECK; 4407 EV_FREQUENT_CHECK;
3371} 4408}
4409#endif
3372 4410
3373#if EV_EMBED_ENABLE 4411#if EV_EMBED_ENABLE
3374void noinline 4412void noinline
3375ev_embed_sweep (EV_P_ ev_embed *w) 4413ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3376{ 4414{
3377 ev_loop (w->other, EVLOOP_NONBLOCK); 4415 ev_run (w->other, EVRUN_NOWAIT);
3378} 4416}
3379 4417
3380static void 4418static void
3381embed_io_cb (EV_P_ ev_io *io, int revents) 4419embed_io_cb (EV_P_ ev_io *io, int revents)
3382{ 4420{
3383 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4421 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3384 4422
3385 if (ev_cb (w)) 4423 if (ev_cb (w))
3386 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4424 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3387 else 4425 else
3388 ev_loop (w->other, EVLOOP_NONBLOCK); 4426 ev_run (w->other, EVRUN_NOWAIT);
3389} 4427}
3390 4428
3391static void 4429static void
3392embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4430embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3393{ 4431{
… …
3397 EV_P = w->other; 4435 EV_P = w->other;
3398 4436
3399 while (fdchangecnt) 4437 while (fdchangecnt)
3400 { 4438 {
3401 fd_reify (EV_A); 4439 fd_reify (EV_A);
3402 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4440 ev_run (EV_A_ EVRUN_NOWAIT);
3403 } 4441 }
3404 } 4442 }
3405} 4443}
3406 4444
3407static void 4445static void
… …
3413 4451
3414 { 4452 {
3415 EV_P = w->other; 4453 EV_P = w->other;
3416 4454
3417 ev_loop_fork (EV_A); 4455 ev_loop_fork (EV_A);
3418 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4456 ev_run (EV_A_ EVRUN_NOWAIT);
3419 } 4457 }
3420 4458
3421 ev_embed_start (EV_A_ w); 4459 ev_embed_start (EV_A_ w);
3422} 4460}
3423 4461
… …
3428 ev_idle_stop (EV_A_ idle); 4466 ev_idle_stop (EV_A_ idle);
3429} 4467}
3430#endif 4468#endif
3431 4469
3432void 4470void
3433ev_embed_start (EV_P_ ev_embed *w) 4471ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3434{ 4472{
3435 if (expect_false (ev_is_active (w))) 4473 if (expect_false (ev_is_active (w)))
3436 return; 4474 return;
3437 4475
3438 { 4476 {
… …
3459 4497
3460 EV_FREQUENT_CHECK; 4498 EV_FREQUENT_CHECK;
3461} 4499}
3462 4500
3463void 4501void
3464ev_embed_stop (EV_P_ ev_embed *w) 4502ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3465{ 4503{
3466 clear_pending (EV_A_ (W)w); 4504 clear_pending (EV_A_ (W)w);
3467 if (expect_false (!ev_is_active (w))) 4505 if (expect_false (!ev_is_active (w)))
3468 return; 4506 return;
3469 4507
… …
3479} 4517}
3480#endif 4518#endif
3481 4519
3482#if EV_FORK_ENABLE 4520#if EV_FORK_ENABLE
3483void 4521void
3484ev_fork_start (EV_P_ ev_fork *w) 4522ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3485{ 4523{
3486 if (expect_false (ev_is_active (w))) 4524 if (expect_false (ev_is_active (w)))
3487 return; 4525 return;
3488 4526
3489 EV_FREQUENT_CHECK; 4527 EV_FREQUENT_CHECK;
… …
3494 4532
3495 EV_FREQUENT_CHECK; 4533 EV_FREQUENT_CHECK;
3496} 4534}
3497 4535
3498void 4536void
3499ev_fork_stop (EV_P_ ev_fork *w) 4537ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3500{ 4538{
3501 clear_pending (EV_A_ (W)w); 4539 clear_pending (EV_A_ (W)w);
3502 if (expect_false (!ev_is_active (w))) 4540 if (expect_false (!ev_is_active (w)))
3503 return; 4541 return;
3504 4542
… …
3515 4553
3516 EV_FREQUENT_CHECK; 4554 EV_FREQUENT_CHECK;
3517} 4555}
3518#endif 4556#endif
3519 4557
4558#if EV_CLEANUP_ENABLE
4559void
4560ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4561{
4562 if (expect_false (ev_is_active (w)))
4563 return;
4564
4565 EV_FREQUENT_CHECK;
4566
4567 ev_start (EV_A_ (W)w, ++cleanupcnt);
4568 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4569 cleanups [cleanupcnt - 1] = w;
4570
4571 /* cleanup watchers should never keep a refcount on the loop */
4572 ev_unref (EV_A);
4573 EV_FREQUENT_CHECK;
4574}
4575
4576void
4577ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4578{
4579 clear_pending (EV_A_ (W)w);
4580 if (expect_false (!ev_is_active (w)))
4581 return;
4582
4583 EV_FREQUENT_CHECK;
4584 ev_ref (EV_A);
4585
4586 {
4587 int active = ev_active (w);
4588
4589 cleanups [active - 1] = cleanups [--cleanupcnt];
4590 ev_active (cleanups [active - 1]) = active;
4591 }
4592
4593 ev_stop (EV_A_ (W)w);
4594
4595 EV_FREQUENT_CHECK;
4596}
4597#endif
4598
3520#if EV_ASYNC_ENABLE 4599#if EV_ASYNC_ENABLE
3521void 4600void
3522ev_async_start (EV_P_ ev_async *w) 4601ev_async_start (EV_P_ ev_async *w) EV_THROW
3523{ 4602{
3524 if (expect_false (ev_is_active (w))) 4603 if (expect_false (ev_is_active (w)))
3525 return; 4604 return;
4605
4606 w->sent = 0;
3526 4607
3527 evpipe_init (EV_A); 4608 evpipe_init (EV_A);
3528 4609
3529 EV_FREQUENT_CHECK; 4610 EV_FREQUENT_CHECK;
3530 4611
… …
3534 4615
3535 EV_FREQUENT_CHECK; 4616 EV_FREQUENT_CHECK;
3536} 4617}
3537 4618
3538void 4619void
3539ev_async_stop (EV_P_ ev_async *w) 4620ev_async_stop (EV_P_ ev_async *w) EV_THROW
3540{ 4621{
3541 clear_pending (EV_A_ (W)w); 4622 clear_pending (EV_A_ (W)w);
3542 if (expect_false (!ev_is_active (w))) 4623 if (expect_false (!ev_is_active (w)))
3543 return; 4624 return;
3544 4625
… …
3555 4636
3556 EV_FREQUENT_CHECK; 4637 EV_FREQUENT_CHECK;
3557} 4638}
3558 4639
3559void 4640void
3560ev_async_send (EV_P_ ev_async *w) 4641ev_async_send (EV_P_ ev_async *w) EV_THROW
3561{ 4642{
3562 w->sent = 1; 4643 w->sent = 1;
3563 evpipe_write (EV_A_ &async_pending); 4644 evpipe_write (EV_A_ &async_pending);
3564} 4645}
3565#endif 4646#endif
… …
3602 4683
3603 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4684 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3604} 4685}
3605 4686
3606void 4687void
3607ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4688ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3608{ 4689{
3609 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4690 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3610 4691
3611 if (expect_false (!once)) 4692 if (expect_false (!once))
3612 { 4693 {
3613 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4694 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3614 return; 4695 return;
3615 } 4696 }
3616 4697
3617 once->cb = cb; 4698 once->cb = cb;
3618 once->arg = arg; 4699 once->arg = arg;
… …
3633} 4714}
3634 4715
3635/*****************************************************************************/ 4716/*****************************************************************************/
3636 4717
3637#if EV_WALK_ENABLE 4718#if EV_WALK_ENABLE
3638void 4719void ecb_cold
3639ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4720ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3640{ 4721{
3641 int i, j; 4722 int i, j;
3642 ev_watcher_list *wl, *wn; 4723 ev_watcher_list *wl, *wn;
3643 4724
3644 if (types & (EV_IO | EV_EMBED)) 4725 if (types & (EV_IO | EV_EMBED))
… …
3687 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4768 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3688#endif 4769#endif
3689 4770
3690#if EV_IDLE_ENABLE 4771#if EV_IDLE_ENABLE
3691 if (types & EV_IDLE) 4772 if (types & EV_IDLE)
3692 for (j = NUMPRI; i--; ) 4773 for (j = NUMPRI; j--; )
3693 for (i = idlecnt [j]; i--; ) 4774 for (i = idlecnt [j]; i--; )
3694 cb (EV_A_ EV_IDLE, idles [j][i]); 4775 cb (EV_A_ EV_IDLE, idles [j][i]);
3695#endif 4776#endif
3696 4777
3697#if EV_FORK_ENABLE 4778#if EV_FORK_ENABLE
… …
3705 if (types & EV_ASYNC) 4786 if (types & EV_ASYNC)
3706 for (i = asynccnt; i--; ) 4787 for (i = asynccnt; i--; )
3707 cb (EV_A_ EV_ASYNC, asyncs [i]); 4788 cb (EV_A_ EV_ASYNC, asyncs [i]);
3708#endif 4789#endif
3709 4790
4791#if EV_PREPARE_ENABLE
3710 if (types & EV_PREPARE) 4792 if (types & EV_PREPARE)
3711 for (i = preparecnt; i--; ) 4793 for (i = preparecnt; i--; )
3712#if EV_EMBED_ENABLE 4794# if EV_EMBED_ENABLE
3713 if (ev_cb (prepares [i]) != embed_prepare_cb) 4795 if (ev_cb (prepares [i]) != embed_prepare_cb)
3714#endif 4796# endif
3715 cb (EV_A_ EV_PREPARE, prepares [i]); 4797 cb (EV_A_ EV_PREPARE, prepares [i]);
4798#endif
3716 4799
4800#if EV_CHECK_ENABLE
3717 if (types & EV_CHECK) 4801 if (types & EV_CHECK)
3718 for (i = checkcnt; i--; ) 4802 for (i = checkcnt; i--; )
3719 cb (EV_A_ EV_CHECK, checks [i]); 4803 cb (EV_A_ EV_CHECK, checks [i]);
4804#endif
3720 4805
4806#if EV_SIGNAL_ENABLE
3721 if (types & EV_SIGNAL) 4807 if (types & EV_SIGNAL)
3722 for (i = 0; i < EV_NSIG - 1; ++i) 4808 for (i = 0; i < EV_NSIG - 1; ++i)
3723 for (wl = signals [i].head; wl; ) 4809 for (wl = signals [i].head; wl; )
3724 { 4810 {
3725 wn = wl->next; 4811 wn = wl->next;
3726 cb (EV_A_ EV_SIGNAL, wl); 4812 cb (EV_A_ EV_SIGNAL, wl);
3727 wl = wn; 4813 wl = wn;
3728 } 4814 }
4815#endif
3729 4816
4817#if EV_CHILD_ENABLE
3730 if (types & EV_CHILD) 4818 if (types & EV_CHILD)
3731 for (i = EV_PID_HASHSIZE; i--; ) 4819 for (i = (EV_PID_HASHSIZE); i--; )
3732 for (wl = childs [i]; wl; ) 4820 for (wl = childs [i]; wl; )
3733 { 4821 {
3734 wn = wl->next; 4822 wn = wl->next;
3735 cb (EV_A_ EV_CHILD, wl); 4823 cb (EV_A_ EV_CHILD, wl);
3736 wl = wn; 4824 wl = wn;
3737 } 4825 }
4826#endif
3738/* EV_STAT 0x00001000 /* stat data changed */ 4827/* EV_STAT 0x00001000 /* stat data changed */
3739/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4828/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3740} 4829}
3741#endif 4830#endif
3742 4831
3743#if EV_MULTIPLICITY 4832#if EV_MULTIPLICITY
3744 #include "ev_wrap.h" 4833 #include "ev_wrap.h"
3745#endif 4834#endif
3746 4835
3747#ifdef __cplusplus
3748}
3749#endif
3750

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