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Comparing libev/ev.c (file contents):
Revision 1.335 by root, Tue Mar 9 09:02:03 2010 UTC vs.
Revision 1.473 by root, Tue Sep 9 21:51:35 2014 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) 2007,2008,2009,2010,2011,2012,2013 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"
46# endif
47
48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
50# 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
… …
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 && __GLIBC_MINOR__ < 17
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
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
267# endif
268#endif
269
229#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
230# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
231# define EV_USE_MONOTONIC 1 272# define EV_USE_MONOTONIC EV_FEATURE_OS
232# else 273# else
233# define EV_USE_MONOTONIC 0 274# define EV_USE_MONOTONIC 0
234# endif 275# endif
235#endif 276#endif
236 277
… …
238# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 279# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239#endif 280#endif
240 281
241#ifndef EV_USE_NANOSLEEP 282#ifndef EV_USE_NANOSLEEP
242# if _POSIX_C_SOURCE >= 199309L 283# if _POSIX_C_SOURCE >= 199309L
243# define EV_USE_NANOSLEEP 1 284# define EV_USE_NANOSLEEP EV_FEATURE_OS
244# else 285# else
245# define EV_USE_NANOSLEEP 0 286# define EV_USE_NANOSLEEP 0
246# endif 287# endif
247#endif 288#endif
248 289
249#ifndef EV_USE_SELECT 290#ifndef EV_USE_SELECT
250# define EV_USE_SELECT 1 291# define EV_USE_SELECT EV_FEATURE_BACKENDS
251#endif 292#endif
252 293
253#ifndef EV_USE_POLL 294#ifndef EV_USE_POLL
254# ifdef _WIN32 295# ifdef _WIN32
255# define EV_USE_POLL 0 296# define EV_USE_POLL 0
256# else 297# else
257# define EV_USE_POLL 1 298# define EV_USE_POLL EV_FEATURE_BACKENDS
258# endif 299# endif
259#endif 300#endif
260 301
261#ifndef EV_USE_EPOLL 302#ifndef EV_USE_EPOLL
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263# define EV_USE_EPOLL 1 304# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264# else 305# else
265# define EV_USE_EPOLL 0 306# define EV_USE_EPOLL 0
266# endif 307# endif
267#endif 308#endif
268 309
… …
274# define EV_USE_PORT 0 315# define EV_USE_PORT 0
275#endif 316#endif
276 317
277#ifndef EV_USE_INOTIFY 318#ifndef EV_USE_INOTIFY
278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279# define EV_USE_INOTIFY 1 320# define EV_USE_INOTIFY EV_FEATURE_OS
280# else 321# else
281# define EV_USE_INOTIFY 0 322# define EV_USE_INOTIFY 0
282# endif 323# endif
283#endif 324#endif
284 325
285#ifndef EV_PID_HASHSIZE 326#ifndef EV_PID_HASHSIZE
286# if EV_MINIMAL 327# 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 328#endif
292 329
293#ifndef EV_INOTIFY_HASHSIZE 330#ifndef EV_INOTIFY_HASHSIZE
294# if EV_MINIMAL 331# 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 332#endif
300 333
301#ifndef EV_USE_EVENTFD 334#ifndef EV_USE_EVENTFD
302# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 335# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303# define EV_USE_EVENTFD 1 336# define EV_USE_EVENTFD EV_FEATURE_OS
304# else 337# else
305# define EV_USE_EVENTFD 0 338# define EV_USE_EVENTFD 0
306# endif 339# endif
307#endif 340#endif
308 341
309#ifndef EV_USE_SIGNALFD 342#ifndef EV_USE_SIGNALFD
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 343# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311# define EV_USE_SIGNALFD 1 344# define EV_USE_SIGNALFD EV_FEATURE_OS
312# else 345# else
313# define EV_USE_SIGNALFD 0 346# define EV_USE_SIGNALFD 0
314# endif 347# endif
315#endif 348#endif
316 349
… …
319# define EV_USE_4HEAP 1 352# define EV_USE_4HEAP 1
320# define EV_HEAP_CACHE_AT 1 353# define EV_HEAP_CACHE_AT 1
321#endif 354#endif
322 355
323#ifndef EV_VERIFY 356#ifndef EV_VERIFY
324# define EV_VERIFY !EV_MINIMAL 357# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325#endif 358#endif
326 359
327#ifndef EV_USE_4HEAP 360#ifndef EV_USE_4HEAP
328# define EV_USE_4HEAP !EV_MINIMAL 361# define EV_USE_4HEAP EV_FEATURE_DATA
329#endif 362#endif
330 363
331#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
332# define EV_HEAP_CACHE_AT !EV_MINIMAL 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif
367
368#ifdef ANDROID
369/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT
371# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL
374# define EV_USE_CLOCK_SYSCALL 0
375#endif
376
377/* aix's poll.h seems to cause lots of trouble */
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
333#endif 382#endif
334 383
335/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 384/* 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. */ 385/* which makes programs even slower. might work on other unices, too. */
337#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
338# include <syscall.h> 387# include <sys/syscall.h>
339# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
340# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
341# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
342# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
343# else 392# else
… …
346# endif 395# endif
347#endif 396#endif
348 397
349/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 398/* this block fixes any misconfiguration where we know we run into trouble otherwise */
350 399
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 400#ifndef CLOCK_MONOTONIC
358# undef EV_USE_MONOTONIC 401# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 0 402# define EV_USE_MONOTONIC 0
360#endif 403#endif
361 404
… …
368# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
369# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
370#endif 413#endif
371 414
372#if !EV_USE_NANOSLEEP 415#if !EV_USE_NANOSLEEP
373# ifndef _WIN32 416/* hp-ux has it in sys/time.h, which we unconditionally include above */
417# if !defined _WIN32 && !defined __hpux
374# include <sys/select.h> 418# include <sys/select.h>
375# endif 419# endif
376#endif 420#endif
377 421
378#if EV_USE_INOTIFY 422#if EV_USE_INOTIFY
379# include <sys/utsname.h>
380# include <sys/statfs.h> 423# include <sys/statfs.h>
381# include <sys/inotify.h> 424# include <sys/inotify.h>
382/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 425/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
383# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
384# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
385# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
386# endif 429# endif
387#endif
388
389#if EV_SELECT_IS_WINSOCKET
390# include <winsock.h>
391#endif 430#endif
392 431
393#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
394/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
395# include <stdint.h> 434# include <stdint.h>
… …
401# define EFD_CLOEXEC O_CLOEXEC 440# define EFD_CLOEXEC O_CLOEXEC
402# else 441# else
403# define EFD_CLOEXEC 02000000 442# define EFD_CLOEXEC 02000000
404# endif 443# endif
405# endif 444# endif
406# ifdef __cplusplus
407extern "C" {
408# endif
409int (eventfd) (unsigned int initval, int flags); 445EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410# ifdef __cplusplus
411}
412# endif
413#endif 446#endif
414 447
415#if EV_USE_SIGNALFD 448#if EV_USE_SIGNALFD
416/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 449/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
417# include <stdint.h> 450# include <stdint.h>
… …
423# define SFD_CLOEXEC O_CLOEXEC 456# define SFD_CLOEXEC O_CLOEXEC
424# else 457# else
425# define SFD_CLOEXEC 02000000 458# define SFD_CLOEXEC 02000000
426# endif 459# endif
427# endif 460# endif
428# ifdef __cplusplus
429extern "C" {
430# endif
431int signalfd (int fd, const sigset_t *mask, int flags); 461EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
432 462
433struct signalfd_siginfo 463struct signalfd_siginfo
434{ 464{
435 uint32_t ssi_signo; 465 uint32_t ssi_signo;
436 char pad[128 - sizeof (uint32_t)]; 466 char pad[128 - sizeof (uint32_t)];
437}; 467};
438# ifdef __cplusplus
439}
440# endif 468#endif
441#endif
442
443 469
444/**/ 470/**/
445 471
446#if EV_VERIFY >= 3 472#if EV_VERIFY >= 3
447# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 473# define EV_FREQUENT_CHECK ev_verify (EV_A)
448#else 474#else
449# define EV_FREQUENT_CHECK do { } while (0) 475# define EV_FREQUENT_CHECK do { } while (0)
450#endif 476#endif
451 477
452/* 478/*
453 * This is used to avoid floating point rounding problems. 479 * 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. 480 * This value is good at least till the year 4000.
458 * Better solutions welcome.
459 */ 481 */
460#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 482#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
483/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
461 484
462#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 485#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) */ 486#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
464 487
488#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
489#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
490
491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
492/* ECB.H BEGIN */
493/*
494 * libecb - http://software.schmorp.de/pkg/libecb
495 *
496 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
497 * Copyright (©) 2011 Emanuele Giaquinta
498 * All rights reserved.
499 *
500 * Redistribution and use in source and binary forms, with or without modifica-
501 * tion, are permitted provided that the following conditions are met:
502 *
503 * 1. Redistributions of source code must retain the above copyright notice,
504 * this list of conditions and the following disclaimer.
505 *
506 * 2. Redistributions in binary form must reproduce the above copyright
507 * notice, this list of conditions and the following disclaimer in the
508 * documentation and/or other materials provided with the distribution.
509 *
510 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
511 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
512 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
513 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
514 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
515 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
518 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
519 * OF THE POSSIBILITY OF SUCH DAMAGE.
520 *
521 * Alternatively, the contents of this file may be used under the terms of
522 * the GNU General Public License ("GPL") version 2 or any later version,
523 * in which case the provisions of the GPL are applicable instead of
524 * the above. If you wish to allow the use of your version of this file
525 * only under the terms of the GPL and not to allow others to use your
526 * version of this file under the BSD license, indicate your decision
527 * by deleting the provisions above and replace them with the notice
528 * and other provisions required by the GPL. If you do not delete the
529 * provisions above, a recipient may use your version of this file under
530 * either the BSD or the GPL.
531 */
532
533#ifndef ECB_H
534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010003
538
539#ifdef _WIN32
540 typedef signed char int8_t;
541 typedef unsigned char uint8_t;
542 typedef signed short int16_t;
543 typedef unsigned short uint16_t;
544 typedef signed int int32_t;
545 typedef unsigned int uint32_t;
465#if __GNUC__ >= 4 546 #if __GNUC__
466# define expect(expr,value) __builtin_expect ((expr),(value)) 547 typedef signed long long int64_t;
467# define noinline __attribute__ ((noinline)) 548 typedef unsigned long long uint64_t;
549 #else /* _MSC_VER || __BORLANDC__ */
550 typedef signed __int64 int64_t;
551 typedef unsigned __int64 uint64_t;
552 #endif
553 #ifdef _WIN64
554 #define ECB_PTRSIZE 8
555 typedef uint64_t uintptr_t;
556 typedef int64_t intptr_t;
557 #else
558 #define ECB_PTRSIZE 4
559 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t;
561 #endif
468#else 562#else
469# define expect(expr,value) (expr) 563 #include <inttypes.h>
470# define noinline 564 #if UINTMAX_MAX > 0xffffffffU
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 565 #define ECB_PTRSIZE 8
472# define inline 566 #else
567 #define ECB_PTRSIZE 4
568 #endif
473# endif 569#endif
570
571/* work around x32 idiocy by defining proper macros */
572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
573 #if _ILP32
574 #define ECB_AMD64_X32 1
575 #else
576 #define ECB_AMD64 1
474#endif 577 #endif
578#endif
475 579
580/* many compilers define _GNUC_ to some versions but then only implement
581 * what their idiot authors think are the "more important" extensions,
582 * causing enormous grief in return for some better fake benchmark numbers.
583 * or so.
584 * we try to detect these and simply assume they are not gcc - if they have
585 * an issue with that they should have done it right in the first place.
586 */
587#ifndef ECB_GCC_VERSION
588 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
589 #define ECB_GCC_VERSION(major,minor) 0
590 #else
591 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
592 #endif
593#endif
594
595#define ECB_CPP (__cplusplus+0)
596#define ECB_CPP11 (__cplusplus >= 201103L)
597
598#if ECB_CPP
599 #define ECB_C 0
600 #define ECB_STDC_VERSION 0
601#else
602 #define ECB_C 1
603 #define ECB_STDC_VERSION __STDC_VERSION__
604#endif
605
606#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
607#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
608
609#if ECB_CPP
610 #define ECB_EXTERN_C extern "C"
611 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
612 #define ECB_EXTERN_C_END }
613#else
614 #define ECB_EXTERN_C extern
615 #define ECB_EXTERN_C_BEG
616 #define ECB_EXTERN_C_END
617#endif
618
619/*****************************************************************************/
620
621/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
622/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
623
624#if ECB_NO_THREADS
625 #define ECB_NO_SMP 1
626#endif
627
628#if ECB_NO_SMP
629 #define ECB_MEMORY_FENCE do { } while (0)
630#endif
631
632#ifndef ECB_MEMORY_FENCE
633 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #if __i386 || __i386__
635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
636 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
638 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
639 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
640 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
641 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
642 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
644 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
645 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
646 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
647 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
648 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
649 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
650 #elif __aarch64__
651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
652 #elif (__sparc || __sparc__) && !__sparcv8
653 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
654 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
655 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
656 #elif defined __s390__ || defined __s390x__
657 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
658 #elif defined __mips__
659 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
660 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
662 #elif defined __alpha__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
664 #elif defined __hppa__
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
667 #elif defined __ia64__
668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
669 #elif defined __m68k__
670 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
671 #elif defined __m88k__
672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
673 #elif defined __sh__
674 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
675 #endif
676 #endif
677#endif
678
679#ifndef ECB_MEMORY_FENCE
680 #if ECB_GCC_VERSION(4,7)
681 /* see comment below (stdatomic.h) about the C11 memory model. */
682 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
683 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
684 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
685
686 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
687 * without risking compile time errors with other compilers. We *could*
688 * define our own ecb_clang_has_feature, but I just can't be bothered to work
689 * around this shit time and again.
690 * #elif defined __clang && __has_feature (cxx_atomic)
691 * // see comment below (stdatomic.h) about the C11 memory model.
692 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
693 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
694 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
695 */
696
697 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
698 #define ECB_MEMORY_FENCE __sync_synchronize ()
699 #elif _MSC_VER >= 1500 /* VC++ 2008 */
700 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
701 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
702 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
703 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
704 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
705 #elif _MSC_VER >= 1400 /* VC++ 2005 */
706 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
707 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
708 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
709 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
710 #elif defined _WIN32
711 #include <WinNT.h>
712 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
713 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
714 #include <mbarrier.h>
715 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
716 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
717 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
718 #elif __xlC__
719 #define ECB_MEMORY_FENCE __sync ()
720 #endif
721#endif
722
723#ifndef ECB_MEMORY_FENCE
724 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
725 /* we assume that these memory fences work on all variables/all memory accesses, */
726 /* not just C11 atomics and atomic accesses */
727 #include <stdatomic.h>
728 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
729 /* any fence other than seq_cst, which isn't very efficient for us. */
730 /* Why that is, we don't know - either the C11 memory model is quite useless */
731 /* for most usages, or gcc and clang have a bug */
732 /* I *currently* lean towards the latter, and inefficiently implement */
733 /* all three of ecb's fences as a seq_cst fence */
734 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
735 /* for all __atomic_thread_fence's except seq_cst */
736 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
737 #endif
738#endif
739
740#ifndef ECB_MEMORY_FENCE
741 #if !ECB_AVOID_PTHREADS
742 /*
743 * if you get undefined symbol references to pthread_mutex_lock,
744 * or failure to find pthread.h, then you should implement
745 * the ECB_MEMORY_FENCE operations for your cpu/compiler
746 * OR provide pthread.h and link against the posix thread library
747 * of your system.
748 */
749 #include <pthread.h>
750 #define ECB_NEEDS_PTHREADS 1
751 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
752
753 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
754 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
755 #endif
756#endif
757
758#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
759 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
760#endif
761
762#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
763 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
764#endif
765
766/*****************************************************************************/
767
768#if __cplusplus
769 #define ecb_inline static inline
770#elif ECB_GCC_VERSION(2,5)
771 #define ecb_inline static __inline__
772#elif ECB_C99
773 #define ecb_inline static inline
774#else
775 #define ecb_inline static
776#endif
777
778#if ECB_GCC_VERSION(3,3)
779 #define ecb_restrict __restrict__
780#elif ECB_C99
781 #define ecb_restrict restrict
782#else
783 #define ecb_restrict
784#endif
785
786typedef int ecb_bool;
787
788#define ECB_CONCAT_(a, b) a ## b
789#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
790#define ECB_STRINGIFY_(a) # a
791#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
792
793#define ecb_function_ ecb_inline
794
795#if ECB_GCC_VERSION(3,1)
796 #define ecb_attribute(attrlist) __attribute__(attrlist)
797 #define ecb_is_constant(expr) __builtin_constant_p (expr)
798 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
799 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
800#else
801 #define ecb_attribute(attrlist)
802
803 /* possible C11 impl for integral types
804 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
805 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
806
807 #define ecb_is_constant(expr) 0
808 #define ecb_expect(expr,value) (expr)
809 #define ecb_prefetch(addr,rw,locality)
810#endif
811
812/* no emulation for ecb_decltype */
813#if ECB_GCC_VERSION(4,5)
814 #define ecb_decltype(x) __decltype(x)
815#elif ECB_GCC_VERSION(3,0)
816 #define ecb_decltype(x) __typeof(x)
817#endif
818
819#if _MSC_VER >= 1300
820 #define ecb_deprecated __declspec(deprecated)
821#else
822 #define ecb_deprecated ecb_attribute ((__deprecated__))
823#endif
824
825#define ecb_noinline ecb_attribute ((__noinline__))
826#define ecb_unused ecb_attribute ((__unused__))
827#define ecb_const ecb_attribute ((__const__))
828#define ecb_pure ecb_attribute ((__pure__))
829
830/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
831#if ECB_C11
832 #define ecb_noreturn _Noreturn
833#else
834 #define ecb_noreturn ecb_attribute ((__noreturn__))
835#endif
836
837#if ECB_GCC_VERSION(4,3)
838 #define ecb_artificial ecb_attribute ((__artificial__))
839 #define ecb_hot ecb_attribute ((__hot__))
840 #define ecb_cold ecb_attribute ((__cold__))
841#else
842 #define ecb_artificial
843 #define ecb_hot
844 #define ecb_cold
845#endif
846
847/* put around conditional expressions if you are very sure that the */
848/* expression is mostly true or mostly false. note that these return */
849/* booleans, not the expression. */
476#define expect_false(expr) expect ((expr) != 0, 0) 850#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 851#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
852/* for compatibility to the rest of the world */
853#define ecb_likely(expr) ecb_expect_true (expr)
854#define ecb_unlikely(expr) ecb_expect_false (expr)
855
856/* count trailing zero bits and count # of one bits */
857#if ECB_GCC_VERSION(3,4)
858 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
859 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
860 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
861 #define ecb_ctz32(x) __builtin_ctz (x)
862 #define ecb_ctz64(x) __builtin_ctzll (x)
863 #define ecb_popcount32(x) __builtin_popcount (x)
864 /* no popcountll */
865#else
866 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
867 ecb_function_ int
868 ecb_ctz32 (uint32_t x)
869 {
870 int r = 0;
871
872 x &= ~x + 1; /* this isolates the lowest bit */
873
874#if ECB_branchless_on_i386
875 r += !!(x & 0xaaaaaaaa) << 0;
876 r += !!(x & 0xcccccccc) << 1;
877 r += !!(x & 0xf0f0f0f0) << 2;
878 r += !!(x & 0xff00ff00) << 3;
879 r += !!(x & 0xffff0000) << 4;
880#else
881 if (x & 0xaaaaaaaa) r += 1;
882 if (x & 0xcccccccc) r += 2;
883 if (x & 0xf0f0f0f0) r += 4;
884 if (x & 0xff00ff00) r += 8;
885 if (x & 0xffff0000) r += 16;
886#endif
887
888 return r;
889 }
890
891 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
892 ecb_function_ int
893 ecb_ctz64 (uint64_t x)
894 {
895 int shift = x & 0xffffffffU ? 0 : 32;
896 return ecb_ctz32 (x >> shift) + shift;
897 }
898
899 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
900 ecb_function_ int
901 ecb_popcount32 (uint32_t x)
902 {
903 x -= (x >> 1) & 0x55555555;
904 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
905 x = ((x >> 4) + x) & 0x0f0f0f0f;
906 x *= 0x01010101;
907
908 return x >> 24;
909 }
910
911 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
912 ecb_function_ int ecb_ld32 (uint32_t x)
913 {
914 int r = 0;
915
916 if (x >> 16) { x >>= 16; r += 16; }
917 if (x >> 8) { x >>= 8; r += 8; }
918 if (x >> 4) { x >>= 4; r += 4; }
919 if (x >> 2) { x >>= 2; r += 2; }
920 if (x >> 1) { r += 1; }
921
922 return r;
923 }
924
925 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
926 ecb_function_ int ecb_ld64 (uint64_t x)
927 {
928 int r = 0;
929
930 if (x >> 32) { x >>= 32; r += 32; }
931
932 return r + ecb_ld32 (x);
933 }
934#endif
935
936ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
937ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
938ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
939ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
940
941ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
942ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
943{
944 return ( (x * 0x0802U & 0x22110U)
945 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
946}
947
948ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
949ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
950{
951 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
952 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
953 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
954 x = ( x >> 8 ) | ( x << 8);
955
956 return x;
957}
958
959ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
960ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
961{
962 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
963 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
964 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
965 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
966 x = ( x >> 16 ) | ( x << 16);
967
968 return x;
969}
970
971/* popcount64 is only available on 64 bit cpus as gcc builtin */
972/* so for this version we are lazy */
973ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
974ecb_function_ int
975ecb_popcount64 (uint64_t x)
976{
977 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
978}
979
980ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
981ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
982ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
983ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
984ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
985ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
986ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
987ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
988
989ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
990ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
991ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
992ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
993ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
994ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
995ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
996ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
997
998#if ECB_GCC_VERSION(4,3)
999 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1000 #define ecb_bswap32(x) __builtin_bswap32 (x)
1001 #define ecb_bswap64(x) __builtin_bswap64 (x)
1002#else
1003 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
1004 ecb_function_ uint16_t
1005 ecb_bswap16 (uint16_t x)
1006 {
1007 return ecb_rotl16 (x, 8);
1008 }
1009
1010 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
1011 ecb_function_ uint32_t
1012 ecb_bswap32 (uint32_t x)
1013 {
1014 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1015 }
1016
1017 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
1018 ecb_function_ uint64_t
1019 ecb_bswap64 (uint64_t x)
1020 {
1021 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1022 }
1023#endif
1024
1025#if ECB_GCC_VERSION(4,5)
1026 #define ecb_unreachable() __builtin_unreachable ()
1027#else
1028 /* this seems to work fine, but gcc always emits a warning for it :/ */
1029 ecb_inline void ecb_unreachable (void) ecb_noreturn;
1030 ecb_inline void ecb_unreachable (void) { }
1031#endif
1032
1033/* try to tell the compiler that some condition is definitely true */
1034#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1035
1036ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
1037ecb_inline unsigned char
1038ecb_byteorder_helper (void)
1039{
1040 /* the union code still generates code under pressure in gcc, */
1041 /* but less than using pointers, and always seems to */
1042 /* successfully return a constant. */
1043 /* the reason why we have this horrible preprocessor mess */
1044 /* is to avoid it in all cases, at least on common architectures */
1045 /* or when using a recent enough gcc version (>= 4.6) */
1046#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1047 return 0x44;
1048#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1049 return 0x44;
1050#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1051 return 0x11;
1052#else
1053 union
1054 {
1055 uint32_t i;
1056 uint8_t c;
1057 } u = { 0x11223344 };
1058 return u.c;
1059#endif
1060}
1061
1062ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
1063ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1064ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
1065ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1066
1067#if ECB_GCC_VERSION(3,0) || ECB_C99
1068 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1069#else
1070 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1071#endif
1072
1073#if __cplusplus
1074 template<typename T>
1075 static inline T ecb_div_rd (T val, T div)
1076 {
1077 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1078 }
1079 template<typename T>
1080 static inline T ecb_div_ru (T val, T div)
1081 {
1082 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1083 }
1084#else
1085 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1086 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1087#endif
1088
1089#if ecb_cplusplus_does_not_suck
1090 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1091 template<typename T, int N>
1092 static inline int ecb_array_length (const T (&arr)[N])
1093 {
1094 return N;
1095 }
1096#else
1097 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1098#endif
1099
1100/*******************************************************************************/
1101/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1102
1103/* basically, everything uses "ieee pure-endian" floating point numbers */
1104/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1105#if 0 \
1106 || __i386 || __i386__ \
1107 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1108 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1109 || defined __s390__ || defined __s390x__ \
1110 || defined __mips__ \
1111 || defined __alpha__ \
1112 || defined __hppa__ \
1113 || defined __ia64__ \
1114 || defined __m68k__ \
1115 || defined __m88k__ \
1116 || defined __sh__ \
1117 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1118 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1119 || defined __aarch64__
1120 #define ECB_STDFP 1
1121 #include <string.h> /* for memcpy */
1122#else
1123 #define ECB_STDFP 0
1124#endif
1125
1126#ifndef ECB_NO_LIBM
1127
1128 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1129
1130 /* only the oldest of old doesn't have this one. solaris. */
1131 #ifdef INFINITY
1132 #define ECB_INFINITY INFINITY
1133 #else
1134 #define ECB_INFINITY HUGE_VAL
1135 #endif
1136
1137 #ifdef NAN
1138 #define ECB_NAN NAN
1139 #else
1140 #define ECB_NAN ECB_INFINITY
1141 #endif
1142
1143 /* converts an ieee half/binary16 to a float */
1144 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1145 ecb_function_ float
1146 ecb_binary16_to_float (uint16_t x)
1147 {
1148 int e = (x >> 10) & 0x1f;
1149 int m = x & 0x3ff;
1150 float r;
1151
1152 if (!e ) r = ldexpf (m , -24);
1153 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1154 else if (m ) r = ECB_NAN;
1155 else r = ECB_INFINITY;
1156
1157 return x & 0x8000 ? -r : r;
1158 }
1159
1160 /* convert a float to ieee single/binary32 */
1161 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1162 ecb_function_ uint32_t
1163 ecb_float_to_binary32 (float x)
1164 {
1165 uint32_t r;
1166
1167 #if ECB_STDFP
1168 memcpy (&r, &x, 4);
1169 #else
1170 /* slow emulation, works for anything but -0 */
1171 uint32_t m;
1172 int e;
1173
1174 if (x == 0e0f ) return 0x00000000U;
1175 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1176 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1177 if (x != x ) return 0x7fbfffffU;
1178
1179 m = frexpf (x, &e) * 0x1000000U;
1180
1181 r = m & 0x80000000U;
1182
1183 if (r)
1184 m = -m;
1185
1186 if (e <= -126)
1187 {
1188 m &= 0xffffffU;
1189 m >>= (-125 - e);
1190 e = -126;
1191 }
1192
1193 r |= (e + 126) << 23;
1194 r |= m & 0x7fffffU;
1195 #endif
1196
1197 return r;
1198 }
1199
1200 /* converts an ieee single/binary32 to a float */
1201 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1202 ecb_function_ float
1203 ecb_binary32_to_float (uint32_t x)
1204 {
1205 float r;
1206
1207 #if ECB_STDFP
1208 memcpy (&r, &x, 4);
1209 #else
1210 /* emulation, only works for normals and subnormals and +0 */
1211 int neg = x >> 31;
1212 int e = (x >> 23) & 0xffU;
1213
1214 x &= 0x7fffffU;
1215
1216 if (e)
1217 x |= 0x800000U;
1218 else
1219 e = 1;
1220
1221 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1222 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1223
1224 r = neg ? -r : r;
1225 #endif
1226
1227 return r;
1228 }
1229
1230 /* convert a double to ieee double/binary64 */
1231 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1232 ecb_function_ uint64_t
1233 ecb_double_to_binary64 (double x)
1234 {
1235 uint64_t r;
1236
1237 #if ECB_STDFP
1238 memcpy (&r, &x, 8);
1239 #else
1240 /* slow emulation, works for anything but -0 */
1241 uint64_t m;
1242 int e;
1243
1244 if (x == 0e0 ) return 0x0000000000000000U;
1245 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1246 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1247 if (x != x ) return 0X7ff7ffffffffffffU;
1248
1249 m = frexp (x, &e) * 0x20000000000000U;
1250
1251 r = m & 0x8000000000000000;;
1252
1253 if (r)
1254 m = -m;
1255
1256 if (e <= -1022)
1257 {
1258 m &= 0x1fffffffffffffU;
1259 m >>= (-1021 - e);
1260 e = -1022;
1261 }
1262
1263 r |= ((uint64_t)(e + 1022)) << 52;
1264 r |= m & 0xfffffffffffffU;
1265 #endif
1266
1267 return r;
1268 }
1269
1270 /* converts an ieee double/binary64 to a double */
1271 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1272 ecb_function_ double
1273 ecb_binary64_to_double (uint64_t x)
1274 {
1275 double r;
1276
1277 #if ECB_STDFP
1278 memcpy (&r, &x, 8);
1279 #else
1280 /* emulation, only works for normals and subnormals and +0 */
1281 int neg = x >> 63;
1282 int e = (x >> 52) & 0x7ffU;
1283
1284 x &= 0xfffffffffffffU;
1285
1286 if (e)
1287 x |= 0x10000000000000U;
1288 else
1289 e = 1;
1290
1291 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1292 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1293
1294 r = neg ? -r : r;
1295 #endif
1296
1297 return r;
1298 }
1299
1300#endif
1301
1302#endif
1303
1304/* ECB.H END */
1305
1306#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1307/* if your architecture doesn't need memory fences, e.g. because it is
1308 * single-cpu/core, or if you use libev in a project that doesn't use libev
1309 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1310 * libev, in which cases the memory fences become nops.
1311 * alternatively, you can remove this #error and link against libpthread,
1312 * which will then provide the memory fences.
1313 */
1314# error "memory fences not defined for your architecture, please report"
1315#endif
1316
1317#ifndef ECB_MEMORY_FENCE
1318# define ECB_MEMORY_FENCE do { } while (0)
1319# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1320# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1321#endif
1322
1323#define expect_false(cond) ecb_expect_false (cond)
1324#define expect_true(cond) ecb_expect_true (cond)
1325#define noinline ecb_noinline
1326
478#define inline_size static inline 1327#define inline_size ecb_inline
479 1328
480#if EV_MINIMAL 1329#if EV_FEATURE_CODE
1330# define inline_speed ecb_inline
1331#else
481# define inline_speed static noinline 1332# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 1333#endif
485 1334
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1335#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 1336
488#if EV_MINPRI == EV_MAXPRI 1337#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 1350#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 1351#define ev_at(w) ((WT)(w))->at
503 1352
504#if EV_USE_REALTIME 1353#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1354/* 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 */ 1355/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1356static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 1357#endif
509 1358
510#if EV_USE_MONOTONIC 1359#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1360static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 1374# include "ev_win32.c"
526#endif 1375#endif
527 1376
528/*****************************************************************************/ 1377/*****************************************************************************/
529 1378
1379/* define a suitable floor function (only used by periodics atm) */
1380
1381#if EV_USE_FLOOR
1382# include <math.h>
1383# define ev_floor(v) floor (v)
1384#else
1385
1386#include <float.h>
1387
1388/* a floor() replacement function, should be independent of ev_tstamp type */
1389static ev_tstamp noinline
1390ev_floor (ev_tstamp v)
1391{
1392 /* the choice of shift factor is not terribly important */
1393#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1394 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1395#else
1396 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1397#endif
1398
1399 /* argument too large for an unsigned long? */
1400 if (expect_false (v >= shift))
1401 {
1402 ev_tstamp f;
1403
1404 if (v == v - 1.)
1405 return v; /* very large number */
1406
1407 f = shift * ev_floor (v * (1. / shift));
1408 return f + ev_floor (v - f);
1409 }
1410
1411 /* special treatment for negative args? */
1412 if (expect_false (v < 0.))
1413 {
1414 ev_tstamp f = -ev_floor (-v);
1415
1416 return f - (f == v ? 0 : 1);
1417 }
1418
1419 /* fits into an unsigned long */
1420 return (unsigned long)v;
1421}
1422
1423#endif
1424
1425/*****************************************************************************/
1426
1427#ifdef __linux
1428# include <sys/utsname.h>
1429#endif
1430
1431static unsigned int noinline ecb_cold
1432ev_linux_version (void)
1433{
1434#ifdef __linux
1435 unsigned int v = 0;
1436 struct utsname buf;
1437 int i;
1438 char *p = buf.release;
1439
1440 if (uname (&buf))
1441 return 0;
1442
1443 for (i = 3+1; --i; )
1444 {
1445 unsigned int c = 0;
1446
1447 for (;;)
1448 {
1449 if (*p >= '0' && *p <= '9')
1450 c = c * 10 + *p++ - '0';
1451 else
1452 {
1453 p += *p == '.';
1454 break;
1455 }
1456 }
1457
1458 v = (v << 8) | c;
1459 }
1460
1461 return v;
1462#else
1463 return 0;
1464#endif
1465}
1466
1467/*****************************************************************************/
1468
530#if EV_AVOID_STDIO 1469#if EV_AVOID_STDIO
531static void noinline 1470static void noinline ecb_cold
532ev_printerr (const char *msg) 1471ev_printerr (const char *msg)
533{ 1472{
534 write (STDERR_FILENO, msg, strlen (msg)); 1473 write (STDERR_FILENO, msg, strlen (msg));
535} 1474}
536#endif 1475#endif
537 1476
538static void (*syserr_cb)(const char *msg); 1477static void (*syserr_cb)(const char *msg) EV_THROW;
539 1478
540void 1479void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 1480ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
542{ 1481{
543 syserr_cb = cb; 1482 syserr_cb = cb;
544} 1483}
545 1484
546static void noinline 1485static void noinline ecb_cold
547ev_syserr (const char *msg) 1486ev_syserr (const char *msg)
548{ 1487{
549 if (!msg) 1488 if (!msg)
550 msg = "(libev) system error"; 1489 msg = "(libev) system error";
551 1490
552 if (syserr_cb) 1491 if (syserr_cb)
553 syserr_cb (msg); 1492 syserr_cb (msg);
554 else 1493 else
555 { 1494 {
556#if EV_AVOID_STDIO 1495#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 1496 ev_printerr (msg);
560 ev_printerr (": "); 1497 ev_printerr (": ");
561 ev_printerr (err); 1498 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 1499 ev_printerr ("\n");
563#else 1500#else
564 perror (msg); 1501 perror (msg);
565#endif 1502#endif
566 abort (); 1503 abort ();
567 } 1504 }
568} 1505}
569 1506
570static void * 1507static void *
571ev_realloc_emul (void *ptr, long size) 1508ev_realloc_emul (void *ptr, long size) EV_THROW
572{ 1509{
573#if __GLIBC__
574 return realloc (ptr, size);
575#else
576 /* some systems, notably openbsd and darwin, fail to properly 1510 /* some systems, notably openbsd and darwin, fail to properly
577 * implement realloc (x, 0) (as required by both ansi c-89 and 1511 * implement realloc (x, 0) (as required by both ansi c-89 and
578 * the single unix specification, so work around them here. 1512 * the single unix specification, so work around them here.
1513 * recently, also (at least) fedora and debian started breaking it,
1514 * despite documenting it otherwise.
579 */ 1515 */
580 1516
581 if (size) 1517 if (size)
582 return realloc (ptr, size); 1518 return realloc (ptr, size);
583 1519
584 free (ptr); 1520 free (ptr);
585 return 0; 1521 return 0;
586#endif
587} 1522}
588 1523
589static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1524static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
590 1525
591void 1526void ecb_cold
592ev_set_allocator (void *(*cb)(void *ptr, long size)) 1527ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
593{ 1528{
594 alloc = cb; 1529 alloc = cb;
595} 1530}
596 1531
597inline_speed void * 1532inline_speed void *
… …
600 ptr = alloc (ptr, size); 1535 ptr = alloc (ptr, size);
601 1536
602 if (!ptr && size) 1537 if (!ptr && size)
603 { 1538 {
604#if EV_AVOID_STDIO 1539#if EV_AVOID_STDIO
605 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1540 ev_printerr ("(libev) memory allocation failed, aborting.\n");
606#else 1541#else
607 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1542 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
608#endif 1543#endif
609 abort (); 1544 abort ();
610 } 1545 }
611 1546
612 return ptr; 1547 return ptr;
… …
629 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1564 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
630 unsigned char unused; 1565 unsigned char unused;
631#if EV_USE_EPOLL 1566#if EV_USE_EPOLL
632 unsigned int egen; /* generation counter to counter epoll bugs */ 1567 unsigned int egen; /* generation counter to counter epoll bugs */
633#endif 1568#endif
634#if EV_SELECT_IS_WINSOCKET 1569#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
635 SOCKET handle; 1570 SOCKET handle;
1571#endif
1572#if EV_USE_IOCP
1573 OVERLAPPED or, ow;
636#endif 1574#endif
637} ANFD; 1575} ANFD;
638 1576
639/* stores the pending event set for a given watcher */ 1577/* stores the pending event set for a given watcher */
640typedef struct 1578typedef struct
… …
682 #undef VAR 1620 #undef VAR
683 }; 1621 };
684 #include "ev_wrap.h" 1622 #include "ev_wrap.h"
685 1623
686 static struct ev_loop default_loop_struct; 1624 static struct ev_loop default_loop_struct;
687 struct ev_loop *ev_default_loop_ptr; 1625 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
688 1626
689#else 1627#else
690 1628
691 ev_tstamp ev_rt_now; 1629 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
692 #define VAR(name,decl) static decl; 1630 #define VAR(name,decl) static decl;
693 #include "ev_vars.h" 1631 #include "ev_vars.h"
694 #undef VAR 1632 #undef VAR
695 1633
696 static int ev_default_loop_ptr; 1634 static int ev_default_loop_ptr;
697 1635
698#endif 1636#endif
699 1637
700#if EV_MINIMAL < 2 1638#if EV_FEATURE_API
701# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1639# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
702# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1640# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
703# define EV_INVOKE_PENDING invoke_cb (EV_A) 1641# define EV_INVOKE_PENDING invoke_cb (EV_A)
704#else 1642#else
705# define EV_RELEASE_CB (void)0 1643# define EV_RELEASE_CB (void)0
706# define EV_ACQUIRE_CB (void)0 1644# define EV_ACQUIRE_CB (void)0
707# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1645# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
708#endif 1646#endif
709 1647
710#define EVUNLOOP_RECURSE 0x80 1648#define EVBREAK_RECURSE 0x80
711 1649
712/*****************************************************************************/ 1650/*****************************************************************************/
713 1651
714#ifndef EV_HAVE_EV_TIME 1652#ifndef EV_HAVE_EV_TIME
715ev_tstamp 1653ev_tstamp
716ev_time (void) 1654ev_time (void) EV_THROW
717{ 1655{
718#if EV_USE_REALTIME 1656#if EV_USE_REALTIME
719 if (expect_true (have_realtime)) 1657 if (expect_true (have_realtime))
720 { 1658 {
721 struct timespec ts; 1659 struct timespec ts;
… …
745 return ev_time (); 1683 return ev_time ();
746} 1684}
747 1685
748#if EV_MULTIPLICITY 1686#if EV_MULTIPLICITY
749ev_tstamp 1687ev_tstamp
750ev_now (EV_P) 1688ev_now (EV_P) EV_THROW
751{ 1689{
752 return ev_rt_now; 1690 return ev_rt_now;
753} 1691}
754#endif 1692#endif
755 1693
756void 1694void
757ev_sleep (ev_tstamp delay) 1695ev_sleep (ev_tstamp delay) EV_THROW
758{ 1696{
759 if (delay > 0.) 1697 if (delay > 0.)
760 { 1698 {
761#if EV_USE_NANOSLEEP 1699#if EV_USE_NANOSLEEP
762 struct timespec ts; 1700 struct timespec ts;
763 1701
764 ts.tv_sec = (time_t)delay; 1702 EV_TS_SET (ts, delay);
765 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
766
767 nanosleep (&ts, 0); 1703 nanosleep (&ts, 0);
768#elif defined(_WIN32) 1704#elif defined _WIN32
769 Sleep ((unsigned long)(delay * 1e3)); 1705 Sleep ((unsigned long)(delay * 1e3));
770#else 1706#else
771 struct timeval tv; 1707 struct timeval tv;
772 1708
773 tv.tv_sec = (time_t)delay;
774 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
775
776 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1709 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
777 /* something not guaranteed by newer posix versions, but guaranteed */ 1710 /* something not guaranteed by newer posix versions, but guaranteed */
778 /* by older ones */ 1711 /* by older ones */
1712 EV_TV_SET (tv, delay);
779 select (0, 0, 0, 0, &tv); 1713 select (0, 0, 0, 0, &tv);
780#endif 1714#endif
781 } 1715 }
782} 1716}
783 1717
784/*****************************************************************************/ 1718/*****************************************************************************/
785 1719
786#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1720#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
787 1721
788/* find a suitable new size for the given array, */ 1722/* find a suitable new size for the given array, */
789/* hopefully by rounding to a ncie-to-malloc size */ 1723/* hopefully by rounding to a nice-to-malloc size */
790inline_size int 1724inline_size int
791array_nextsize (int elem, int cur, int cnt) 1725array_nextsize (int elem, int cur, int cnt)
792{ 1726{
793 int ncur = cur + 1; 1727 int ncur = cur + 1;
794 1728
795 do 1729 do
796 ncur <<= 1; 1730 ncur <<= 1;
797 while (cnt > ncur); 1731 while (cnt > ncur);
798 1732
799 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1733 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
800 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1734 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
801 { 1735 {
802 ncur *= elem; 1736 ncur *= elem;
803 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1737 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
804 ncur = ncur - sizeof (void *) * 4; 1738 ncur = ncur - sizeof (void *) * 4;
… …
806 } 1740 }
807 1741
808 return ncur; 1742 return ncur;
809} 1743}
810 1744
811static noinline void * 1745static void * noinline ecb_cold
812array_realloc (int elem, void *base, int *cur, int cnt) 1746array_realloc (int elem, void *base, int *cur, int cnt)
813{ 1747{
814 *cur = array_nextsize (elem, *cur, cnt); 1748 *cur = array_nextsize (elem, *cur, cnt);
815 return ev_realloc (base, elem * *cur); 1749 return ev_realloc (base, elem * *cur);
816} 1750}
… …
819 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1753 memset ((void *)(base), 0, sizeof (*(base)) * (count))
820 1754
821#define array_needsize(type,base,cur,cnt,init) \ 1755#define array_needsize(type,base,cur,cnt,init) \
822 if (expect_false ((cnt) > (cur))) \ 1756 if (expect_false ((cnt) > (cur))) \
823 { \ 1757 { \
824 int ocur_ = (cur); \ 1758 int ecb_unused ocur_ = (cur); \
825 (base) = (type *)array_realloc \ 1759 (base) = (type *)array_realloc \
826 (sizeof (type), (base), &(cur), (cnt)); \ 1760 (sizeof (type), (base), &(cur), (cnt)); \
827 init ((base) + (ocur_), (cur) - ocur_); \ 1761 init ((base) + (ocur_), (cur) - ocur_); \
828 } 1762 }
829 1763
… …
847pendingcb (EV_P_ ev_prepare *w, int revents) 1781pendingcb (EV_P_ ev_prepare *w, int revents)
848{ 1782{
849} 1783}
850 1784
851void noinline 1785void noinline
852ev_feed_event (EV_P_ void *w, int revents) 1786ev_feed_event (EV_P_ void *w, int revents) EV_THROW
853{ 1787{
854 W w_ = (W)w; 1788 W w_ = (W)w;
855 int pri = ABSPRI (w_); 1789 int pri = ABSPRI (w_);
856 1790
857 if (expect_false (w_->pending)) 1791 if (expect_false (w_->pending))
… …
861 w_->pending = ++pendingcnt [pri]; 1795 w_->pending = ++pendingcnt [pri];
862 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1796 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
863 pendings [pri][w_->pending - 1].w = w_; 1797 pendings [pri][w_->pending - 1].w = w_;
864 pendings [pri][w_->pending - 1].events = revents; 1798 pendings [pri][w_->pending - 1].events = revents;
865 } 1799 }
1800
1801 pendingpri = NUMPRI - 1;
866} 1802}
867 1803
868inline_speed void 1804inline_speed void
869feed_reverse (EV_P_ W w) 1805feed_reverse (EV_P_ W w)
870{ 1806{
… …
890} 1826}
891 1827
892/*****************************************************************************/ 1828/*****************************************************************************/
893 1829
894inline_speed void 1830inline_speed void
895fd_event_nc (EV_P_ int fd, int revents) 1831fd_event_nocheck (EV_P_ int fd, int revents)
896{ 1832{
897 ANFD *anfd = anfds + fd; 1833 ANFD *anfd = anfds + fd;
898 ev_io *w; 1834 ev_io *w;
899 1835
900 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1836 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
912fd_event (EV_P_ int fd, int revents) 1848fd_event (EV_P_ int fd, int revents)
913{ 1849{
914 ANFD *anfd = anfds + fd; 1850 ANFD *anfd = anfds + fd;
915 1851
916 if (expect_true (!anfd->reify)) 1852 if (expect_true (!anfd->reify))
917 fd_event_nc (EV_A_ fd, revents); 1853 fd_event_nocheck (EV_A_ fd, revents);
918} 1854}
919 1855
920void 1856void
921ev_feed_fd_event (EV_P_ int fd, int revents) 1857ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
922{ 1858{
923 if (fd >= 0 && fd < anfdmax) 1859 if (fd >= 0 && fd < anfdmax)
924 fd_event_nc (EV_A_ fd, revents); 1860 fd_event_nocheck (EV_A_ fd, revents);
925} 1861}
926 1862
927/* make sure the external fd watch events are in-sync */ 1863/* make sure the external fd watch events are in-sync */
928/* with the kernel/libev internal state */ 1864/* with the kernel/libev internal state */
929inline_size void 1865inline_size void
930fd_reify (EV_P) 1866fd_reify (EV_P)
931{ 1867{
932 int i; 1868 int i;
933 1869
1870#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1871 for (i = 0; i < fdchangecnt; ++i)
1872 {
1873 int fd = fdchanges [i];
1874 ANFD *anfd = anfds + fd;
1875
1876 if (anfd->reify & EV__IOFDSET && anfd->head)
1877 {
1878 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1879
1880 if (handle != anfd->handle)
1881 {
1882 unsigned long arg;
1883
1884 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1885
1886 /* handle changed, but fd didn't - we need to do it in two steps */
1887 backend_modify (EV_A_ fd, anfd->events, 0);
1888 anfd->events = 0;
1889 anfd->handle = handle;
1890 }
1891 }
1892 }
1893#endif
1894
934 for (i = 0; i < fdchangecnt; ++i) 1895 for (i = 0; i < fdchangecnt; ++i)
935 { 1896 {
936 int fd = fdchanges [i]; 1897 int fd = fdchanges [i];
937 ANFD *anfd = anfds + fd; 1898 ANFD *anfd = anfds + fd;
938 ev_io *w; 1899 ev_io *w;
939 1900
940 unsigned char events = 0; 1901 unsigned char o_events = anfd->events;
1902 unsigned char o_reify = anfd->reify;
941 1903
942 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1904 anfd->reify = 0;
943 events |= (unsigned char)w->events;
944 1905
945#if EV_SELECT_IS_WINSOCKET 1906 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
946 if (events)
947 { 1907 {
948 unsigned long arg; 1908 anfd->events = 0;
949 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1909
950 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1910 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1911 anfd->events |= (unsigned char)w->events;
1912
1913 if (o_events != anfd->events)
1914 o_reify = EV__IOFDSET; /* actually |= */
951 } 1915 }
952#endif
953 1916
954 { 1917 if (o_reify & EV__IOFDSET)
955 unsigned char o_events = anfd->events;
956 unsigned char o_reify = anfd->reify;
957
958 anfd->reify = 0;
959 anfd->events = events;
960
961 if (o_events != events || o_reify & EV__IOFDSET)
962 backend_modify (EV_A_ fd, o_events, events); 1918 backend_modify (EV_A_ fd, o_events, anfd->events);
963 }
964 } 1919 }
965 1920
966 fdchangecnt = 0; 1921 fdchangecnt = 0;
967} 1922}
968 1923
… …
980 fdchanges [fdchangecnt - 1] = fd; 1935 fdchanges [fdchangecnt - 1] = fd;
981 } 1936 }
982} 1937}
983 1938
984/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1939/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
985inline_speed void 1940inline_speed void ecb_cold
986fd_kill (EV_P_ int fd) 1941fd_kill (EV_P_ int fd)
987{ 1942{
988 ev_io *w; 1943 ev_io *w;
989 1944
990 while ((w = (ev_io *)anfds [fd].head)) 1945 while ((w = (ev_io *)anfds [fd].head))
… …
992 ev_io_stop (EV_A_ w); 1947 ev_io_stop (EV_A_ w);
993 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1948 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
994 } 1949 }
995} 1950}
996 1951
997/* check whether the given fd is atcually valid, for error recovery */ 1952/* check whether the given fd is actually valid, for error recovery */
998inline_size int 1953inline_size int ecb_cold
999fd_valid (int fd) 1954fd_valid (int fd)
1000{ 1955{
1001#ifdef _WIN32 1956#ifdef _WIN32
1002 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1957 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1003#else 1958#else
1004 return fcntl (fd, F_GETFD) != -1; 1959 return fcntl (fd, F_GETFD) != -1;
1005#endif 1960#endif
1006} 1961}
1007 1962
1008/* called on EBADF to verify fds */ 1963/* called on EBADF to verify fds */
1009static void noinline 1964static void noinline ecb_cold
1010fd_ebadf (EV_P) 1965fd_ebadf (EV_P)
1011{ 1966{
1012 int fd; 1967 int fd;
1013 1968
1014 for (fd = 0; fd < anfdmax; ++fd) 1969 for (fd = 0; fd < anfdmax; ++fd)
… …
1016 if (!fd_valid (fd) && errno == EBADF) 1971 if (!fd_valid (fd) && errno == EBADF)
1017 fd_kill (EV_A_ fd); 1972 fd_kill (EV_A_ fd);
1018} 1973}
1019 1974
1020/* called on ENOMEM in select/poll to kill some fds and retry */ 1975/* called on ENOMEM in select/poll to kill some fds and retry */
1021static void noinline 1976static void noinline ecb_cold
1022fd_enomem (EV_P) 1977fd_enomem (EV_P)
1023{ 1978{
1024 int fd; 1979 int fd;
1025 1980
1026 for (fd = anfdmax; fd--; ) 1981 for (fd = anfdmax; fd--; )
… …
1044 anfds [fd].emask = 0; 1999 anfds [fd].emask = 0;
1045 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 2000 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1046 } 2001 }
1047} 2002}
1048 2003
2004/* used to prepare libev internal fd's */
2005/* this is not fork-safe */
2006inline_speed void
2007fd_intern (int fd)
2008{
2009#ifdef _WIN32
2010 unsigned long arg = 1;
2011 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
2012#else
2013 fcntl (fd, F_SETFD, FD_CLOEXEC);
2014 fcntl (fd, F_SETFL, O_NONBLOCK);
2015#endif
2016}
2017
1049/*****************************************************************************/ 2018/*****************************************************************************/
1050 2019
1051/* 2020/*
1052 * the heap functions want a real array index. array index 0 uis guaranteed to not 2021 * the heap functions want a real array index. array index 0 is guaranteed to not
1053 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 2022 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1054 * the branching factor of the d-tree. 2023 * the branching factor of the d-tree.
1055 */ 2024 */
1056 2025
1057/* 2026/*
… …
1205 2174
1206static ANSIG signals [EV_NSIG - 1]; 2175static ANSIG signals [EV_NSIG - 1];
1207 2176
1208/*****************************************************************************/ 2177/*****************************************************************************/
1209 2178
1210/* used to prepare libev internal fd's */ 2179#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1211/* this is not fork-safe */ 2180
2181static void noinline ecb_cold
2182evpipe_init (EV_P)
2183{
2184 if (!ev_is_active (&pipe_w))
2185 {
2186 int fds [2];
2187
2188# if EV_USE_EVENTFD
2189 fds [0] = -1;
2190 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
2191 if (fds [1] < 0 && errno == EINVAL)
2192 fds [1] = eventfd (0, 0);
2193
2194 if (fds [1] < 0)
2195# endif
2196 {
2197 while (pipe (fds))
2198 ev_syserr ("(libev) error creating signal/async pipe");
2199
2200 fd_intern (fds [0]);
2201 }
2202
2203 evpipe [0] = fds [0];
2204
2205 if (evpipe [1] < 0)
2206 evpipe [1] = fds [1]; /* first call, set write fd */
2207 else
2208 {
2209 /* on subsequent calls, do not change evpipe [1] */
2210 /* so that evpipe_write can always rely on its value. */
2211 /* this branch does not do anything sensible on windows, */
2212 /* so must not be executed on windows */
2213
2214 dup2 (fds [1], evpipe [1]);
2215 close (fds [1]);
2216 }
2217
2218 fd_intern (evpipe [1]);
2219
2220 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2221 ev_io_start (EV_A_ &pipe_w);
2222 ev_unref (EV_A); /* watcher should not keep loop alive */
2223 }
2224}
2225
1212inline_speed void 2226inline_speed void
1213fd_intern (int fd) 2227evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1214{ 2228{
1215#ifdef _WIN32 2229 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1216 unsigned long arg = 1;
1217 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1218#else
1219 fcntl (fd, F_SETFD, FD_CLOEXEC);
1220 fcntl (fd, F_SETFL, O_NONBLOCK);
1221#endif
1222}
1223 2230
1224static void noinline 2231 if (expect_true (*flag))
1225evpipe_init (EV_P) 2232 return;
1226{ 2233
1227 if (!ev_is_active (&pipe_w)) 2234 *flag = 1;
2235 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2236
2237 pipe_write_skipped = 1;
2238
2239 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2240
2241 if (pipe_write_wanted)
1228 { 2242 {
2243 int old_errno;
2244
2245 pipe_write_skipped = 0;
2246 ECB_MEMORY_FENCE_RELEASE;
2247
2248 old_errno = errno; /* save errno because write will clobber it */
2249
1229#if EV_USE_EVENTFD 2250#if EV_USE_EVENTFD
1230 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2251 if (evpipe [0] < 0)
1231 if (evfd < 0 && errno == EINVAL)
1232 evfd = eventfd (0, 0);
1233
1234 if (evfd >= 0)
1235 { 2252 {
1236 evpipe [0] = -1; 2253 uint64_t counter = 1;
1237 fd_intern (evfd); /* doing it twice doesn't hurt */ 2254 write (evpipe [1], &counter, sizeof (uint64_t));
1238 ev_io_set (&pipe_w, evfd, EV_READ);
1239 } 2255 }
1240 else 2256 else
1241#endif 2257#endif
1242 { 2258 {
1243 while (pipe (evpipe)) 2259#ifdef _WIN32
1244 ev_syserr ("(libev) error creating signal/async pipe"); 2260 WSABUF buf;
1245 2261 DWORD sent;
1246 fd_intern (evpipe [0]); 2262 buf.buf = &buf;
1247 fd_intern (evpipe [1]); 2263 buf.len = 1;
1248 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2264 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2265#else
2266 write (evpipe [1], &(evpipe [1]), 1);
2267#endif
1249 } 2268 }
1250
1251 ev_io_start (EV_A_ &pipe_w);
1252 ev_unref (EV_A); /* watcher should not keep loop alive */
1253 }
1254}
1255
1256inline_size void
1257evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1258{
1259 if (!*flag)
1260 {
1261 int old_errno = errno; /* save errno because write might clobber it */
1262
1263 *flag = 1;
1264
1265#if EV_USE_EVENTFD
1266 if (evfd >= 0)
1267 {
1268 uint64_t counter = 1;
1269 write (evfd, &counter, sizeof (uint64_t));
1270 }
1271 else
1272#endif
1273 write (evpipe [1], &old_errno, 1);
1274 2269
1275 errno = old_errno; 2270 errno = old_errno;
1276 } 2271 }
1277} 2272}
1278 2273
… …
1281static void 2276static void
1282pipecb (EV_P_ ev_io *iow, int revents) 2277pipecb (EV_P_ ev_io *iow, int revents)
1283{ 2278{
1284 int i; 2279 int i;
1285 2280
2281 if (revents & EV_READ)
2282 {
1286#if EV_USE_EVENTFD 2283#if EV_USE_EVENTFD
1287 if (evfd >= 0) 2284 if (evpipe [0] < 0)
1288 { 2285 {
1289 uint64_t counter; 2286 uint64_t counter;
1290 read (evfd, &counter, sizeof (uint64_t)); 2287 read (evpipe [1], &counter, sizeof (uint64_t));
1291 } 2288 }
1292 else 2289 else
1293#endif 2290#endif
1294 { 2291 {
1295 char dummy; 2292 char dummy[4];
2293#ifdef _WIN32
2294 WSABUF buf;
2295 DWORD recvd;
2296 DWORD flags = 0;
2297 buf.buf = dummy;
2298 buf.len = sizeof (dummy);
2299 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2300#else
1296 read (evpipe [0], &dummy, 1); 2301 read (evpipe [0], &dummy, sizeof (dummy));
2302#endif
2303 }
1297 } 2304 }
1298 2305
2306 pipe_write_skipped = 0;
2307
2308 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2309
2310#if EV_SIGNAL_ENABLE
1299 if (sig_pending) 2311 if (sig_pending)
1300 { 2312 {
1301 sig_pending = 0; 2313 sig_pending = 0;
2314
2315 ECB_MEMORY_FENCE;
1302 2316
1303 for (i = EV_NSIG - 1; i--; ) 2317 for (i = EV_NSIG - 1; i--; )
1304 if (expect_false (signals [i].pending)) 2318 if (expect_false (signals [i].pending))
1305 ev_feed_signal_event (EV_A_ i + 1); 2319 ev_feed_signal_event (EV_A_ i + 1);
1306 } 2320 }
2321#endif
1307 2322
1308#if EV_ASYNC_ENABLE 2323#if EV_ASYNC_ENABLE
1309 if (async_pending) 2324 if (async_pending)
1310 { 2325 {
1311 async_pending = 0; 2326 async_pending = 0;
2327
2328 ECB_MEMORY_FENCE;
1312 2329
1313 for (i = asynccnt; i--; ) 2330 for (i = asynccnt; i--; )
1314 if (asyncs [i]->sent) 2331 if (asyncs [i]->sent)
1315 { 2332 {
1316 asyncs [i]->sent = 0; 2333 asyncs [i]->sent = 0;
2334 ECB_MEMORY_FENCE_RELEASE;
1317 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2335 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1318 } 2336 }
1319 } 2337 }
1320#endif 2338#endif
1321} 2339}
1322 2340
1323/*****************************************************************************/ 2341/*****************************************************************************/
1324 2342
2343void
2344ev_feed_signal (int signum) EV_THROW
2345{
2346#if EV_MULTIPLICITY
2347 EV_P;
2348 ECB_MEMORY_FENCE_ACQUIRE;
2349 EV_A = signals [signum - 1].loop;
2350
2351 if (!EV_A)
2352 return;
2353#endif
2354
2355 signals [signum - 1].pending = 1;
2356 evpipe_write (EV_A_ &sig_pending);
2357}
2358
1325static void 2359static void
1326ev_sighandler (int signum) 2360ev_sighandler (int signum)
1327{ 2361{
1328#if EV_MULTIPLICITY
1329 EV_P = signals [signum - 1].loop;
1330#endif
1331
1332#ifdef _WIN32 2362#ifdef _WIN32
1333 signal (signum, ev_sighandler); 2363 signal (signum, ev_sighandler);
1334#endif 2364#endif
1335 2365
1336 signals [signum - 1].pending = 1; 2366 ev_feed_signal (signum);
1337 evpipe_write (EV_A_ &sig_pending);
1338} 2367}
1339 2368
1340void noinline 2369void noinline
1341ev_feed_signal_event (EV_P_ int signum) 2370ev_feed_signal_event (EV_P_ int signum) EV_THROW
1342{ 2371{
1343 WL w; 2372 WL w;
1344 2373
1345 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2374 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1346 return; 2375 return;
1347 2376
1348 --signum; 2377 --signum;
1349 2378
1350#if EV_MULTIPLICITY 2379#if EV_MULTIPLICITY
… …
1354 if (expect_false (signals [signum].loop != EV_A)) 2383 if (expect_false (signals [signum].loop != EV_A))
1355 return; 2384 return;
1356#endif 2385#endif
1357 2386
1358 signals [signum].pending = 0; 2387 signals [signum].pending = 0;
2388 ECB_MEMORY_FENCE_RELEASE;
1359 2389
1360 for (w = signals [signum].head; w; w = w->next) 2390 for (w = signals [signum].head; w; w = w->next)
1361 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2391 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1362} 2392}
1363 2393
… …
1379 break; 2409 break;
1380 } 2410 }
1381} 2411}
1382#endif 2412#endif
1383 2413
2414#endif
2415
1384/*****************************************************************************/ 2416/*****************************************************************************/
1385 2417
2418#if EV_CHILD_ENABLE
1386static WL childs [EV_PID_HASHSIZE]; 2419static WL childs [EV_PID_HASHSIZE];
1387
1388#ifndef _WIN32
1389 2420
1390static ev_signal childev; 2421static ev_signal childev;
1391 2422
1392#ifndef WIFCONTINUED 2423#ifndef WIFCONTINUED
1393# define WIFCONTINUED(status) 0 2424# define WIFCONTINUED(status) 0
… …
1398child_reap (EV_P_ int chain, int pid, int status) 2429child_reap (EV_P_ int chain, int pid, int status)
1399{ 2430{
1400 ev_child *w; 2431 ev_child *w;
1401 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2432 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1402 2433
1403 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2434 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1404 { 2435 {
1405 if ((w->pid == pid || !w->pid) 2436 if ((w->pid == pid || !w->pid)
1406 && (!traced || (w->flags & 1))) 2437 && (!traced || (w->flags & 1)))
1407 { 2438 {
1408 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2439 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1433 /* make sure we are called again until all children have been reaped */ 2464 /* make sure we are called again until all children have been reaped */
1434 /* we need to do it this way so that the callback gets called before we continue */ 2465 /* we need to do it this way so that the callback gets called before we continue */
1435 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2466 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1436 2467
1437 child_reap (EV_A_ pid, pid, status); 2468 child_reap (EV_A_ pid, pid, status);
1438 if (EV_PID_HASHSIZE > 1) 2469 if ((EV_PID_HASHSIZE) > 1)
1439 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2470 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1440} 2471}
1441 2472
1442#endif 2473#endif
1443 2474
1444/*****************************************************************************/ 2475/*****************************************************************************/
1445 2476
2477#if EV_USE_IOCP
2478# include "ev_iocp.c"
2479#endif
1446#if EV_USE_PORT 2480#if EV_USE_PORT
1447# include "ev_port.c" 2481# include "ev_port.c"
1448#endif 2482#endif
1449#if EV_USE_KQUEUE 2483#if EV_USE_KQUEUE
1450# include "ev_kqueue.c" 2484# include "ev_kqueue.c"
… …
1457#endif 2491#endif
1458#if EV_USE_SELECT 2492#if EV_USE_SELECT
1459# include "ev_select.c" 2493# include "ev_select.c"
1460#endif 2494#endif
1461 2495
1462int 2496int ecb_cold
1463ev_version_major (void) 2497ev_version_major (void) EV_THROW
1464{ 2498{
1465 return EV_VERSION_MAJOR; 2499 return EV_VERSION_MAJOR;
1466} 2500}
1467 2501
1468int 2502int ecb_cold
1469ev_version_minor (void) 2503ev_version_minor (void) EV_THROW
1470{ 2504{
1471 return EV_VERSION_MINOR; 2505 return EV_VERSION_MINOR;
1472} 2506}
1473 2507
1474/* return true if we are running with elevated privileges and should ignore env variables */ 2508/* return true if we are running with elevated privileges and should ignore env variables */
1475int inline_size 2509int inline_size ecb_cold
1476enable_secure (void) 2510enable_secure (void)
1477{ 2511{
1478#ifdef _WIN32 2512#ifdef _WIN32
1479 return 0; 2513 return 0;
1480#else 2514#else
1481 return getuid () != geteuid () 2515 return getuid () != geteuid ()
1482 || getgid () != getegid (); 2516 || getgid () != getegid ();
1483#endif 2517#endif
1484} 2518}
1485 2519
1486unsigned int 2520unsigned int ecb_cold
1487ev_supported_backends (void) 2521ev_supported_backends (void) EV_THROW
1488{ 2522{
1489 unsigned int flags = 0; 2523 unsigned int flags = 0;
1490 2524
1491 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2525 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1492 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2526 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1495 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2529 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1496 2530
1497 return flags; 2531 return flags;
1498} 2532}
1499 2533
1500unsigned int 2534unsigned int ecb_cold
1501ev_recommended_backends (void) 2535ev_recommended_backends (void) EV_THROW
1502{ 2536{
1503 unsigned int flags = ev_supported_backends (); 2537 unsigned int flags = ev_supported_backends ();
1504 2538
1505#ifndef __NetBSD__ 2539#ifndef __NetBSD__
1506 /* kqueue is borked on everything but netbsd apparently */ 2540 /* kqueue is borked on everything but netbsd apparently */
… …
1510#ifdef __APPLE__ 2544#ifdef __APPLE__
1511 /* only select works correctly on that "unix-certified" platform */ 2545 /* only select works correctly on that "unix-certified" platform */
1512 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2546 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1513 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2547 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1514#endif 2548#endif
2549#ifdef __FreeBSD__
2550 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2551#endif
1515 2552
1516 return flags; 2553 return flags;
1517} 2554}
1518 2555
2556unsigned int ecb_cold
2557ev_embeddable_backends (void) EV_THROW
2558{
2559 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2560
2561 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2562 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2563 flags &= ~EVBACKEND_EPOLL;
2564
2565 return flags;
2566}
2567
1519unsigned int 2568unsigned int
1520ev_embeddable_backends (void) 2569ev_backend (EV_P) EV_THROW
1521{ 2570{
1522 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2571 return backend;
1523
1524 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1525 /* please fix it and tell me how to detect the fix */
1526 flags &= ~EVBACKEND_EPOLL;
1527
1528 return flags;
1529} 2572}
1530 2573
2574#if EV_FEATURE_API
1531unsigned int 2575unsigned int
1532ev_backend (EV_P) 2576ev_iteration (EV_P) EV_THROW
1533{ 2577{
1534 return backend; 2578 return loop_count;
1535} 2579}
1536 2580
1537#if EV_MINIMAL < 2
1538unsigned int 2581unsigned int
1539ev_loop_count (EV_P) 2582ev_depth (EV_P) EV_THROW
1540{
1541 return loop_count;
1542}
1543
1544unsigned int
1545ev_loop_depth (EV_P)
1546{ 2583{
1547 return loop_depth; 2584 return loop_depth;
1548} 2585}
1549 2586
1550void 2587void
1551ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2588ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1552{ 2589{
1553 io_blocktime = interval; 2590 io_blocktime = interval;
1554} 2591}
1555 2592
1556void 2593void
1557ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2594ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1558{ 2595{
1559 timeout_blocktime = interval; 2596 timeout_blocktime = interval;
1560} 2597}
1561 2598
1562void 2599void
1563ev_set_userdata (EV_P_ void *data) 2600ev_set_userdata (EV_P_ void *data) EV_THROW
1564{ 2601{
1565 userdata = data; 2602 userdata = data;
1566} 2603}
1567 2604
1568void * 2605void *
1569ev_userdata (EV_P) 2606ev_userdata (EV_P) EV_THROW
1570{ 2607{
1571 return userdata; 2608 return userdata;
1572} 2609}
1573 2610
2611void
1574void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2612ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
1575{ 2613{
1576 invoke_cb = invoke_pending_cb; 2614 invoke_cb = invoke_pending_cb;
1577} 2615}
1578 2616
2617void
1579void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2618ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1580{ 2619{
1581 release_cb = release; 2620 release_cb = release;
1582 acquire_cb = acquire; 2621 acquire_cb = acquire;
1583} 2622}
1584#endif 2623#endif
1585 2624
1586/* initialise a loop structure, must be zero-initialised */ 2625/* initialise a loop structure, must be zero-initialised */
1587static void noinline 2626static void noinline ecb_cold
1588loop_init (EV_P_ unsigned int flags) 2627loop_init (EV_P_ unsigned int flags) EV_THROW
1589{ 2628{
1590 if (!backend) 2629 if (!backend)
1591 { 2630 {
2631 origflags = flags;
2632
1592#if EV_USE_REALTIME 2633#if EV_USE_REALTIME
1593 if (!have_realtime) 2634 if (!have_realtime)
1594 { 2635 {
1595 struct timespec ts; 2636 struct timespec ts;
1596 2637
… …
1618 if (!(flags & EVFLAG_NOENV) 2659 if (!(flags & EVFLAG_NOENV)
1619 && !enable_secure () 2660 && !enable_secure ()
1620 && getenv ("LIBEV_FLAGS")) 2661 && getenv ("LIBEV_FLAGS"))
1621 flags = atoi (getenv ("LIBEV_FLAGS")); 2662 flags = atoi (getenv ("LIBEV_FLAGS"));
1622 2663
1623 ev_rt_now = ev_time (); 2664 ev_rt_now = ev_time ();
1624 mn_now = get_clock (); 2665 mn_now = get_clock ();
1625 now_floor = mn_now; 2666 now_floor = mn_now;
1626 rtmn_diff = ev_rt_now - mn_now; 2667 rtmn_diff = ev_rt_now - mn_now;
1627#if EV_MINIMAL < 2 2668#if EV_FEATURE_API
1628 invoke_cb = ev_invoke_pending; 2669 invoke_cb = ev_invoke_pending;
1629#endif 2670#endif
1630 2671
1631 io_blocktime = 0.; 2672 io_blocktime = 0.;
1632 timeout_blocktime = 0.; 2673 timeout_blocktime = 0.;
1633 backend = 0; 2674 backend = 0;
1634 backend_fd = -1; 2675 backend_fd = -1;
1635 sig_pending = 0; 2676 sig_pending = 0;
1636#if EV_ASYNC_ENABLE 2677#if EV_ASYNC_ENABLE
1637 async_pending = 0; 2678 async_pending = 0;
1638#endif 2679#endif
2680 pipe_write_skipped = 0;
2681 pipe_write_wanted = 0;
2682 evpipe [0] = -1;
2683 evpipe [1] = -1;
1639#if EV_USE_INOTIFY 2684#if EV_USE_INOTIFY
1640 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2685 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1641#endif 2686#endif
1642#if EV_USE_SIGNALFD 2687#if EV_USE_SIGNALFD
1643 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2688 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1644#endif 2689#endif
1645 2690
1646 if (!(flags & 0x0000ffffU)) 2691 if (!(flags & EVBACKEND_MASK))
1647 flags |= ev_recommended_backends (); 2692 flags |= ev_recommended_backends ();
1648 2693
2694#if EV_USE_IOCP
2695 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2696#endif
1649#if EV_USE_PORT 2697#if EV_USE_PORT
1650 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2698 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1651#endif 2699#endif
1652#if EV_USE_KQUEUE 2700#if EV_USE_KQUEUE
1653 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2701 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1662 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2710 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1663#endif 2711#endif
1664 2712
1665 ev_prepare_init (&pending_w, pendingcb); 2713 ev_prepare_init (&pending_w, pendingcb);
1666 2714
2715#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1667 ev_init (&pipe_w, pipecb); 2716 ev_init (&pipe_w, pipecb);
1668 ev_set_priority (&pipe_w, EV_MAXPRI); 2717 ev_set_priority (&pipe_w, EV_MAXPRI);
2718#endif
1669 } 2719 }
1670} 2720}
1671 2721
1672/* free up a loop structure */ 2722/* free up a loop structure */
1673static void noinline 2723void ecb_cold
1674loop_destroy (EV_P) 2724ev_loop_destroy (EV_P)
1675{ 2725{
1676 int i; 2726 int i;
2727
2728#if EV_MULTIPLICITY
2729 /* mimic free (0) */
2730 if (!EV_A)
2731 return;
2732#endif
2733
2734#if EV_CLEANUP_ENABLE
2735 /* queue cleanup watchers (and execute them) */
2736 if (expect_false (cleanupcnt))
2737 {
2738 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2739 EV_INVOKE_PENDING;
2740 }
2741#endif
2742
2743#if EV_CHILD_ENABLE
2744 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2745 {
2746 ev_ref (EV_A); /* child watcher */
2747 ev_signal_stop (EV_A_ &childev);
2748 }
2749#endif
1677 2750
1678 if (ev_is_active (&pipe_w)) 2751 if (ev_is_active (&pipe_w))
1679 { 2752 {
1680 /*ev_ref (EV_A);*/ 2753 /*ev_ref (EV_A);*/
1681 /*ev_io_stop (EV_A_ &pipe_w);*/ 2754 /*ev_io_stop (EV_A_ &pipe_w);*/
1682 2755
1683#if EV_USE_EVENTFD
1684 if (evfd >= 0)
1685 close (evfd);
1686#endif
1687
1688 if (evpipe [0] >= 0)
1689 {
1690 EV_WIN32_CLOSE_FD (evpipe [0]); 2756 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1691 EV_WIN32_CLOSE_FD (evpipe [1]); 2757 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1692 }
1693 } 2758 }
1694 2759
1695#if EV_USE_SIGNALFD 2760#if EV_USE_SIGNALFD
1696 if (ev_is_active (&sigfd_w)) 2761 if (ev_is_active (&sigfd_w))
1697 close (sigfd); 2762 close (sigfd);
… …
1703#endif 2768#endif
1704 2769
1705 if (backend_fd >= 0) 2770 if (backend_fd >= 0)
1706 close (backend_fd); 2771 close (backend_fd);
1707 2772
2773#if EV_USE_IOCP
2774 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2775#endif
1708#if EV_USE_PORT 2776#if EV_USE_PORT
1709 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2777 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1710#endif 2778#endif
1711#if EV_USE_KQUEUE 2779#if EV_USE_KQUEUE
1712 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2780 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1739 array_free (periodic, EMPTY); 2807 array_free (periodic, EMPTY);
1740#endif 2808#endif
1741#if EV_FORK_ENABLE 2809#if EV_FORK_ENABLE
1742 array_free (fork, EMPTY); 2810 array_free (fork, EMPTY);
1743#endif 2811#endif
2812#if EV_CLEANUP_ENABLE
2813 array_free (cleanup, EMPTY);
2814#endif
1744 array_free (prepare, EMPTY); 2815 array_free (prepare, EMPTY);
1745 array_free (check, EMPTY); 2816 array_free (check, EMPTY);
1746#if EV_ASYNC_ENABLE 2817#if EV_ASYNC_ENABLE
1747 array_free (async, EMPTY); 2818 array_free (async, EMPTY);
1748#endif 2819#endif
1749 2820
1750 backend = 0; 2821 backend = 0;
2822
2823#if EV_MULTIPLICITY
2824 if (ev_is_default_loop (EV_A))
2825#endif
2826 ev_default_loop_ptr = 0;
2827#if EV_MULTIPLICITY
2828 else
2829 ev_free (EV_A);
2830#endif
1751} 2831}
1752 2832
1753#if EV_USE_INOTIFY 2833#if EV_USE_INOTIFY
1754inline_size void infy_fork (EV_P); 2834inline_size void infy_fork (EV_P);
1755#endif 2835#endif
… …
1768#endif 2848#endif
1769#if EV_USE_INOTIFY 2849#if EV_USE_INOTIFY
1770 infy_fork (EV_A); 2850 infy_fork (EV_A);
1771#endif 2851#endif
1772 2852
2853#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1773 if (ev_is_active (&pipe_w)) 2854 if (ev_is_active (&pipe_w))
1774 { 2855 {
1775 /* this "locks" the handlers against writing to the pipe */ 2856 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1776 /* while we modify the fd vars */
1777 sig_pending = 1;
1778#if EV_ASYNC_ENABLE
1779 async_pending = 1;
1780#endif
1781 2857
1782 ev_ref (EV_A); 2858 ev_ref (EV_A);
1783 ev_io_stop (EV_A_ &pipe_w); 2859 ev_io_stop (EV_A_ &pipe_w);
1784 2860
1785#if EV_USE_EVENTFD
1786 if (evfd >= 0)
1787 close (evfd);
1788#endif
1789
1790 if (evpipe [0] >= 0) 2861 if (evpipe [0] >= 0)
1791 {
1792 EV_WIN32_CLOSE_FD (evpipe [0]); 2862 EV_WIN32_CLOSE_FD (evpipe [0]);
1793 EV_WIN32_CLOSE_FD (evpipe [1]);
1794 }
1795 2863
1796 evpipe_init (EV_A); 2864 evpipe_init (EV_A);
1797 /* now iterate over everything, in case we missed something */ 2865 /* iterate over everything, in case we missed something before */
1798 pipecb (EV_A_ &pipe_w, EV_READ); 2866 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1799 } 2867 }
2868#endif
1800 2869
1801 postfork = 0; 2870 postfork = 0;
1802} 2871}
1803 2872
1804#if EV_MULTIPLICITY 2873#if EV_MULTIPLICITY
1805 2874
1806struct ev_loop * 2875struct ev_loop * ecb_cold
1807ev_loop_new (unsigned int flags) 2876ev_loop_new (unsigned int flags) EV_THROW
1808{ 2877{
1809 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2878 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1810 2879
1811 memset (EV_A, 0, sizeof (struct ev_loop)); 2880 memset (EV_A, 0, sizeof (struct ev_loop));
1812 loop_init (EV_A_ flags); 2881 loop_init (EV_A_ flags);
1813 2882
1814 if (ev_backend (EV_A)) 2883 if (ev_backend (EV_A))
1815 return EV_A; 2884 return EV_A;
1816 2885
2886 ev_free (EV_A);
1817 return 0; 2887 return 0;
1818} 2888}
1819 2889
1820void
1821ev_loop_destroy (EV_P)
1822{
1823 loop_destroy (EV_A);
1824 ev_free (loop);
1825}
1826
1827void
1828ev_loop_fork (EV_P)
1829{
1830 postfork = 1; /* must be in line with ev_default_fork */
1831}
1832#endif /* multiplicity */ 2890#endif /* multiplicity */
1833 2891
1834#if EV_VERIFY 2892#if EV_VERIFY
1835static void noinline 2893static void noinline ecb_cold
1836verify_watcher (EV_P_ W w) 2894verify_watcher (EV_P_ W w)
1837{ 2895{
1838 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2896 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1839 2897
1840 if (w->pending) 2898 if (w->pending)
1841 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2899 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1842} 2900}
1843 2901
1844static void noinline 2902static void noinline ecb_cold
1845verify_heap (EV_P_ ANHE *heap, int N) 2903verify_heap (EV_P_ ANHE *heap, int N)
1846{ 2904{
1847 int i; 2905 int i;
1848 2906
1849 for (i = HEAP0; i < N + HEAP0; ++i) 2907 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1854 2912
1855 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2913 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1856 } 2914 }
1857} 2915}
1858 2916
1859static void noinline 2917static void noinline ecb_cold
1860array_verify (EV_P_ W *ws, int cnt) 2918array_verify (EV_P_ W *ws, int cnt)
1861{ 2919{
1862 while (cnt--) 2920 while (cnt--)
1863 { 2921 {
1864 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2922 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1865 verify_watcher (EV_A_ ws [cnt]); 2923 verify_watcher (EV_A_ ws [cnt]);
1866 } 2924 }
1867} 2925}
1868#endif 2926#endif
1869 2927
1870#if EV_MINIMAL < 2 2928#if EV_FEATURE_API
1871void 2929void ecb_cold
1872ev_loop_verify (EV_P) 2930ev_verify (EV_P) EV_THROW
1873{ 2931{
1874#if EV_VERIFY 2932#if EV_VERIFY
1875 int i; 2933 int i;
1876 WL w; 2934 WL w, w2;
1877 2935
1878 assert (activecnt >= -1); 2936 assert (activecnt >= -1);
1879 2937
1880 assert (fdchangemax >= fdchangecnt); 2938 assert (fdchangemax >= fdchangecnt);
1881 for (i = 0; i < fdchangecnt; ++i) 2939 for (i = 0; i < fdchangecnt; ++i)
1882 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2940 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1883 2941
1884 assert (anfdmax >= 0); 2942 assert (anfdmax >= 0);
1885 for (i = 0; i < anfdmax; ++i) 2943 for (i = 0; i < anfdmax; ++i)
2944 {
2945 int j = 0;
2946
1886 for (w = anfds [i].head; w; w = w->next) 2947 for (w = w2 = anfds [i].head; w; w = w->next)
1887 { 2948 {
1888 verify_watcher (EV_A_ (W)w); 2949 verify_watcher (EV_A_ (W)w);
2950
2951 if (j++ & 1)
2952 {
2953 assert (("libev: io watcher list contains a loop", w != w2));
2954 w2 = w2->next;
2955 }
2956
1889 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2957 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1890 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2958 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1891 } 2959 }
2960 }
1892 2961
1893 assert (timermax >= timercnt); 2962 assert (timermax >= timercnt);
1894 verify_heap (EV_A_ timers, timercnt); 2963 verify_heap (EV_A_ timers, timercnt);
1895 2964
1896#if EV_PERIODIC_ENABLE 2965#if EV_PERIODIC_ENABLE
… …
1911#if EV_FORK_ENABLE 2980#if EV_FORK_ENABLE
1912 assert (forkmax >= forkcnt); 2981 assert (forkmax >= forkcnt);
1913 array_verify (EV_A_ (W *)forks, forkcnt); 2982 array_verify (EV_A_ (W *)forks, forkcnt);
1914#endif 2983#endif
1915 2984
2985#if EV_CLEANUP_ENABLE
2986 assert (cleanupmax >= cleanupcnt);
2987 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2988#endif
2989
1916#if EV_ASYNC_ENABLE 2990#if EV_ASYNC_ENABLE
1917 assert (asyncmax >= asynccnt); 2991 assert (asyncmax >= asynccnt);
1918 array_verify (EV_A_ (W *)asyncs, asynccnt); 2992 array_verify (EV_A_ (W *)asyncs, asynccnt);
1919#endif 2993#endif
1920 2994
2995#if EV_PREPARE_ENABLE
1921 assert (preparemax >= preparecnt); 2996 assert (preparemax >= preparecnt);
1922 array_verify (EV_A_ (W *)prepares, preparecnt); 2997 array_verify (EV_A_ (W *)prepares, preparecnt);
2998#endif
1923 2999
3000#if EV_CHECK_ENABLE
1924 assert (checkmax >= checkcnt); 3001 assert (checkmax >= checkcnt);
1925 array_verify (EV_A_ (W *)checks, checkcnt); 3002 array_verify (EV_A_ (W *)checks, checkcnt);
3003#endif
1926 3004
1927# if 0 3005# if 0
3006#if EV_CHILD_ENABLE
1928 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 3007 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1929 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 3008 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
3009#endif
1930# endif 3010# endif
1931#endif 3011#endif
1932} 3012}
1933#endif 3013#endif
1934 3014
1935#if EV_MULTIPLICITY 3015#if EV_MULTIPLICITY
1936struct ev_loop * 3016struct ev_loop * ecb_cold
1937ev_default_loop_init (unsigned int flags)
1938#else 3017#else
1939int 3018int
3019#endif
1940ev_default_loop (unsigned int flags) 3020ev_default_loop (unsigned int flags) EV_THROW
1941#endif
1942{ 3021{
1943 if (!ev_default_loop_ptr) 3022 if (!ev_default_loop_ptr)
1944 { 3023 {
1945#if EV_MULTIPLICITY 3024#if EV_MULTIPLICITY
1946 EV_P = ev_default_loop_ptr = &default_loop_struct; 3025 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1950 3029
1951 loop_init (EV_A_ flags); 3030 loop_init (EV_A_ flags);
1952 3031
1953 if (ev_backend (EV_A)) 3032 if (ev_backend (EV_A))
1954 { 3033 {
1955#ifndef _WIN32 3034#if EV_CHILD_ENABLE
1956 ev_signal_init (&childev, childcb, SIGCHLD); 3035 ev_signal_init (&childev, childcb, SIGCHLD);
1957 ev_set_priority (&childev, EV_MAXPRI); 3036 ev_set_priority (&childev, EV_MAXPRI);
1958 ev_signal_start (EV_A_ &childev); 3037 ev_signal_start (EV_A_ &childev);
1959 ev_unref (EV_A); /* child watcher should not keep loop alive */ 3038 ev_unref (EV_A); /* child watcher should not keep loop alive */
1960#endif 3039#endif
… …
1965 3044
1966 return ev_default_loop_ptr; 3045 return ev_default_loop_ptr;
1967} 3046}
1968 3047
1969void 3048void
1970ev_default_destroy (void) 3049ev_loop_fork (EV_P) EV_THROW
1971{ 3050{
1972#if EV_MULTIPLICITY 3051 postfork = 1;
1973 EV_P = ev_default_loop_ptr;
1974#endif
1975
1976 ev_default_loop_ptr = 0;
1977
1978#ifndef _WIN32
1979 ev_ref (EV_A); /* child watcher */
1980 ev_signal_stop (EV_A_ &childev);
1981#endif
1982
1983 loop_destroy (EV_A);
1984}
1985
1986void
1987ev_default_fork (void)
1988{
1989#if EV_MULTIPLICITY
1990 EV_P = ev_default_loop_ptr;
1991#endif
1992
1993 postfork = 1; /* must be in line with ev_loop_fork */
1994} 3052}
1995 3053
1996/*****************************************************************************/ 3054/*****************************************************************************/
1997 3055
1998void 3056void
… …
2000{ 3058{
2001 EV_CB_INVOKE ((W)w, revents); 3059 EV_CB_INVOKE ((W)w, revents);
2002} 3060}
2003 3061
2004unsigned int 3062unsigned int
2005ev_pending_count (EV_P) 3063ev_pending_count (EV_P) EV_THROW
2006{ 3064{
2007 int pri; 3065 int pri;
2008 unsigned int count = 0; 3066 unsigned int count = 0;
2009 3067
2010 for (pri = NUMPRI; pri--; ) 3068 for (pri = NUMPRI; pri--; )
… …
2014} 3072}
2015 3073
2016void noinline 3074void noinline
2017ev_invoke_pending (EV_P) 3075ev_invoke_pending (EV_P)
2018{ 3076{
2019 int pri; 3077 pendingpri = NUMPRI;
2020 3078
2021 for (pri = NUMPRI; pri--; ) 3079 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3080 {
3081 --pendingpri;
3082
2022 while (pendingcnt [pri]) 3083 while (pendingcnt [pendingpri])
2023 { 3084 {
2024 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3085 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2025 3086
2026 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2027 /* ^ this is no longer true, as pending_w could be here */
2028
2029 p->w->pending = 0; 3087 p->w->pending = 0;
2030 EV_CB_INVOKE (p->w, p->events); 3088 EV_CB_INVOKE (p->w, p->events);
2031 EV_FREQUENT_CHECK; 3089 EV_FREQUENT_CHECK;
2032 } 3090 }
3091 }
2033} 3092}
2034 3093
2035#if EV_IDLE_ENABLE 3094#if EV_IDLE_ENABLE
2036/* make idle watchers pending. this handles the "call-idle */ 3095/* make idle watchers pending. this handles the "call-idle */
2037/* only when higher priorities are idle" logic */ 3096/* only when higher priorities are idle" logic */
… …
2089 EV_FREQUENT_CHECK; 3148 EV_FREQUENT_CHECK;
2090 feed_reverse (EV_A_ (W)w); 3149 feed_reverse (EV_A_ (W)w);
2091 } 3150 }
2092 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 3151 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2093 3152
2094 feed_reverse_done (EV_A_ EV_TIMEOUT); 3153 feed_reverse_done (EV_A_ EV_TIMER);
2095 } 3154 }
2096} 3155}
2097 3156
2098#if EV_PERIODIC_ENABLE 3157#if EV_PERIODIC_ENABLE
3158
3159static void noinline
3160periodic_recalc (EV_P_ ev_periodic *w)
3161{
3162 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3163 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3164
3165 /* the above almost always errs on the low side */
3166 while (at <= ev_rt_now)
3167 {
3168 ev_tstamp nat = at + w->interval;
3169
3170 /* when resolution fails us, we use ev_rt_now */
3171 if (expect_false (nat == at))
3172 {
3173 at = ev_rt_now;
3174 break;
3175 }
3176
3177 at = nat;
3178 }
3179
3180 ev_at (w) = at;
3181}
3182
2099/* make periodics pending */ 3183/* make periodics pending */
2100inline_size void 3184inline_size void
2101periodics_reify (EV_P) 3185periodics_reify (EV_P)
2102{ 3186{
2103 EV_FREQUENT_CHECK; 3187 EV_FREQUENT_CHECK;
2104 3188
2105 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3189 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2106 { 3190 {
2107 int feed_count = 0;
2108
2109 do 3191 do
2110 { 3192 {
2111 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3193 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2112 3194
2113 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3195 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2122 ANHE_at_cache (periodics [HEAP0]); 3204 ANHE_at_cache (periodics [HEAP0]);
2123 downheap (periodics, periodiccnt, HEAP0); 3205 downheap (periodics, periodiccnt, HEAP0);
2124 } 3206 }
2125 else if (w->interval) 3207 else if (w->interval)
2126 { 3208 {
2127 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3209 periodic_recalc (EV_A_ w);
2128 /* if next trigger time is not sufficiently in the future, put it there */
2129 /* this might happen because of floating point inexactness */
2130 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2131 {
2132 ev_at (w) += w->interval;
2133
2134 /* if interval is unreasonably low we might still have a time in the past */
2135 /* so correct this. this will make the periodic very inexact, but the user */
2136 /* has effectively asked to get triggered more often than possible */
2137 if (ev_at (w) < ev_rt_now)
2138 ev_at (w) = ev_rt_now;
2139 }
2140
2141 ANHE_at_cache (periodics [HEAP0]); 3210 ANHE_at_cache (periodics [HEAP0]);
2142 downheap (periodics, periodiccnt, HEAP0); 3211 downheap (periodics, periodiccnt, HEAP0);
2143 } 3212 }
2144 else 3213 else
2145 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3214 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2152 feed_reverse_done (EV_A_ EV_PERIODIC); 3221 feed_reverse_done (EV_A_ EV_PERIODIC);
2153 } 3222 }
2154} 3223}
2155 3224
2156/* simply recalculate all periodics */ 3225/* simply recalculate all periodics */
2157/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 3226/* TODO: maybe ensure that at least one event happens when jumping forward? */
2158static void noinline 3227static void noinline ecb_cold
2159periodics_reschedule (EV_P) 3228periodics_reschedule (EV_P)
2160{ 3229{
2161 int i; 3230 int i;
2162 3231
2163 /* adjust periodics after time jump */ 3232 /* adjust periodics after time jump */
… …
2166 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3235 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2167 3236
2168 if (w->reschedule_cb) 3237 if (w->reschedule_cb)
2169 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3238 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2170 else if (w->interval) 3239 else if (w->interval)
2171 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3240 periodic_recalc (EV_A_ w);
2172 3241
2173 ANHE_at_cache (periodics [i]); 3242 ANHE_at_cache (periodics [i]);
2174 } 3243 }
2175 3244
2176 reheap (periodics, periodiccnt); 3245 reheap (periodics, periodiccnt);
2177} 3246}
2178#endif 3247#endif
2179 3248
2180/* adjust all timers by a given offset */ 3249/* adjust all timers by a given offset */
2181static void noinline 3250static void noinline ecb_cold
2182timers_reschedule (EV_P_ ev_tstamp adjust) 3251timers_reschedule (EV_P_ ev_tstamp adjust)
2183{ 3252{
2184 int i; 3253 int i;
2185 3254
2186 for (i = 0; i < timercnt; ++i) 3255 for (i = 0; i < timercnt; ++i)
… …
2223 * doesn't hurt either as we only do this on time-jumps or 3292 * doesn't hurt either as we only do this on time-jumps or
2224 * in the unlikely event of having been preempted here. 3293 * in the unlikely event of having been preempted here.
2225 */ 3294 */
2226 for (i = 4; --i; ) 3295 for (i = 4; --i; )
2227 { 3296 {
3297 ev_tstamp diff;
2228 rtmn_diff = ev_rt_now - mn_now; 3298 rtmn_diff = ev_rt_now - mn_now;
2229 3299
3300 diff = odiff - rtmn_diff;
3301
2230 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3302 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2231 return; /* all is well */ 3303 return; /* all is well */
2232 3304
2233 ev_rt_now = ev_time (); 3305 ev_rt_now = ev_time ();
2234 mn_now = get_clock (); 3306 mn_now = get_clock ();
2235 now_floor = mn_now; 3307 now_floor = mn_now;
… …
2257 3329
2258 mn_now = ev_rt_now; 3330 mn_now = ev_rt_now;
2259 } 3331 }
2260} 3332}
2261 3333
2262void 3334int
2263ev_loop (EV_P_ int flags) 3335ev_run (EV_P_ int flags)
2264{ 3336{
2265#if EV_MINIMAL < 2 3337#if EV_FEATURE_API
2266 ++loop_depth; 3338 ++loop_depth;
2267#endif 3339#endif
2268 3340
2269 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3341 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2270 3342
2271 loop_done = EVUNLOOP_CANCEL; 3343 loop_done = EVBREAK_CANCEL;
2272 3344
2273 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3345 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2274 3346
2275 do 3347 do
2276 { 3348 {
2277#if EV_VERIFY >= 2 3349#if EV_VERIFY >= 2
2278 ev_loop_verify (EV_A); 3350 ev_verify (EV_A);
2279#endif 3351#endif
2280 3352
2281#ifndef _WIN32 3353#ifndef _WIN32
2282 if (expect_false (curpid)) /* penalise the forking check even more */ 3354 if (expect_false (curpid)) /* penalise the forking check even more */
2283 if (expect_false (getpid () != curpid)) 3355 if (expect_false (getpid () != curpid))
… …
2295 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3367 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2296 EV_INVOKE_PENDING; 3368 EV_INVOKE_PENDING;
2297 } 3369 }
2298#endif 3370#endif
2299 3371
3372#if EV_PREPARE_ENABLE
2300 /* queue prepare watchers (and execute them) */ 3373 /* queue prepare watchers (and execute them) */
2301 if (expect_false (preparecnt)) 3374 if (expect_false (preparecnt))
2302 { 3375 {
2303 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3376 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2304 EV_INVOKE_PENDING; 3377 EV_INVOKE_PENDING;
2305 } 3378 }
3379#endif
2306 3380
2307 if (expect_false (loop_done)) 3381 if (expect_false (loop_done))
2308 break; 3382 break;
2309 3383
2310 /* we might have forked, so reify kernel state if necessary */ 3384 /* we might have forked, so reify kernel state if necessary */
… …
2317 /* calculate blocking time */ 3391 /* calculate blocking time */
2318 { 3392 {
2319 ev_tstamp waittime = 0.; 3393 ev_tstamp waittime = 0.;
2320 ev_tstamp sleeptime = 0.; 3394 ev_tstamp sleeptime = 0.;
2321 3395
3396 /* remember old timestamp for io_blocktime calculation */
3397 ev_tstamp prev_mn_now = mn_now;
3398
3399 /* update time to cancel out callback processing overhead */
3400 time_update (EV_A_ 1e100);
3401
3402 /* from now on, we want a pipe-wake-up */
3403 pipe_write_wanted = 1;
3404
3405 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3406
2322 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3407 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2323 { 3408 {
2324 /* remember old timestamp for io_blocktime calculation */
2325 ev_tstamp prev_mn_now = mn_now;
2326
2327 /* update time to cancel out callback processing overhead */
2328 time_update (EV_A_ 1e100);
2329
2330 waittime = MAX_BLOCKTIME; 3409 waittime = MAX_BLOCKTIME;
2331 3410
2332 if (timercnt) 3411 if (timercnt)
2333 { 3412 {
2334 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3413 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2335 if (waittime > to) waittime = to; 3414 if (waittime > to) waittime = to;
2336 } 3415 }
2337 3416
2338#if EV_PERIODIC_ENABLE 3417#if EV_PERIODIC_ENABLE
2339 if (periodiccnt) 3418 if (periodiccnt)
2340 { 3419 {
2341 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3420 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2342 if (waittime > to) waittime = to; 3421 if (waittime > to) waittime = to;
2343 } 3422 }
2344#endif 3423#endif
2345 3424
2346 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3425 /* don't let timeouts decrease the waittime below timeout_blocktime */
2347 if (expect_false (waittime < timeout_blocktime)) 3426 if (expect_false (waittime < timeout_blocktime))
2348 waittime = timeout_blocktime; 3427 waittime = timeout_blocktime;
3428
3429 /* at this point, we NEED to wait, so we have to ensure */
3430 /* to pass a minimum nonzero value to the backend */
3431 if (expect_false (waittime < backend_mintime))
3432 waittime = backend_mintime;
2349 3433
2350 /* extra check because io_blocktime is commonly 0 */ 3434 /* extra check because io_blocktime is commonly 0 */
2351 if (expect_false (io_blocktime)) 3435 if (expect_false (io_blocktime))
2352 { 3436 {
2353 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3437 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2354 3438
2355 if (sleeptime > waittime - backend_fudge) 3439 if (sleeptime > waittime - backend_mintime)
2356 sleeptime = waittime - backend_fudge; 3440 sleeptime = waittime - backend_mintime;
2357 3441
2358 if (expect_true (sleeptime > 0.)) 3442 if (expect_true (sleeptime > 0.))
2359 { 3443 {
2360 ev_sleep (sleeptime); 3444 ev_sleep (sleeptime);
2361 waittime -= sleeptime; 3445 waittime -= sleeptime;
2362 } 3446 }
2363 } 3447 }
2364 } 3448 }
2365 3449
2366#if EV_MINIMAL < 2 3450#if EV_FEATURE_API
2367 ++loop_count; 3451 ++loop_count;
2368#endif 3452#endif
2369 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3453 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2370 backend_poll (EV_A_ waittime); 3454 backend_poll (EV_A_ waittime);
2371 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3455 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3456
3457 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3458
3459 ECB_MEMORY_FENCE_ACQUIRE;
3460 if (pipe_write_skipped)
3461 {
3462 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3463 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3464 }
3465
2372 3466
2373 /* update ev_rt_now, do magic */ 3467 /* update ev_rt_now, do magic */
2374 time_update (EV_A_ waittime + sleeptime); 3468 time_update (EV_A_ waittime + sleeptime);
2375 } 3469 }
2376 3470
… …
2383#if EV_IDLE_ENABLE 3477#if EV_IDLE_ENABLE
2384 /* queue idle watchers unless other events are pending */ 3478 /* queue idle watchers unless other events are pending */
2385 idle_reify (EV_A); 3479 idle_reify (EV_A);
2386#endif 3480#endif
2387 3481
3482#if EV_CHECK_ENABLE
2388 /* queue check watchers, to be executed first */ 3483 /* queue check watchers, to be executed first */
2389 if (expect_false (checkcnt)) 3484 if (expect_false (checkcnt))
2390 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3485 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3486#endif
2391 3487
2392 EV_INVOKE_PENDING; 3488 EV_INVOKE_PENDING;
2393 } 3489 }
2394 while (expect_true ( 3490 while (expect_true (
2395 activecnt 3491 activecnt
2396 && !loop_done 3492 && !loop_done
2397 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3493 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2398 )); 3494 ));
2399 3495
2400 if (loop_done == EVUNLOOP_ONE) 3496 if (loop_done == EVBREAK_ONE)
2401 loop_done = EVUNLOOP_CANCEL; 3497 loop_done = EVBREAK_CANCEL;
2402 3498
2403#if EV_MINIMAL < 2 3499#if EV_FEATURE_API
2404 --loop_depth; 3500 --loop_depth;
2405#endif 3501#endif
3502
3503 return activecnt;
2406} 3504}
2407 3505
2408void 3506void
2409ev_unloop (EV_P_ int how) 3507ev_break (EV_P_ int how) EV_THROW
2410{ 3508{
2411 loop_done = how; 3509 loop_done = how;
2412} 3510}
2413 3511
2414void 3512void
2415ev_ref (EV_P) 3513ev_ref (EV_P) EV_THROW
2416{ 3514{
2417 ++activecnt; 3515 ++activecnt;
2418} 3516}
2419 3517
2420void 3518void
2421ev_unref (EV_P) 3519ev_unref (EV_P) EV_THROW
2422{ 3520{
2423 --activecnt; 3521 --activecnt;
2424} 3522}
2425 3523
2426void 3524void
2427ev_now_update (EV_P) 3525ev_now_update (EV_P) EV_THROW
2428{ 3526{
2429 time_update (EV_A_ 1e100); 3527 time_update (EV_A_ 1e100);
2430} 3528}
2431 3529
2432void 3530void
2433ev_suspend (EV_P) 3531ev_suspend (EV_P) EV_THROW
2434{ 3532{
2435 ev_now_update (EV_A); 3533 ev_now_update (EV_A);
2436} 3534}
2437 3535
2438void 3536void
2439ev_resume (EV_P) 3537ev_resume (EV_P) EV_THROW
2440{ 3538{
2441 ev_tstamp mn_prev = mn_now; 3539 ev_tstamp mn_prev = mn_now;
2442 3540
2443 ev_now_update (EV_A); 3541 ev_now_update (EV_A);
2444 timers_reschedule (EV_A_ mn_now - mn_prev); 3542 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2483 w->pending = 0; 3581 w->pending = 0;
2484 } 3582 }
2485} 3583}
2486 3584
2487int 3585int
2488ev_clear_pending (EV_P_ void *w) 3586ev_clear_pending (EV_P_ void *w) EV_THROW
2489{ 3587{
2490 W w_ = (W)w; 3588 W w_ = (W)w;
2491 int pending = w_->pending; 3589 int pending = w_->pending;
2492 3590
2493 if (expect_true (pending)) 3591 if (expect_true (pending))
… …
2526} 3624}
2527 3625
2528/*****************************************************************************/ 3626/*****************************************************************************/
2529 3627
2530void noinline 3628void noinline
2531ev_io_start (EV_P_ ev_io *w) 3629ev_io_start (EV_P_ ev_io *w) EV_THROW
2532{ 3630{
2533 int fd = w->fd; 3631 int fd = w->fd;
2534 3632
2535 if (expect_false (ev_is_active (w))) 3633 if (expect_false (ev_is_active (w)))
2536 return; 3634 return;
… …
2542 3640
2543 ev_start (EV_A_ (W)w, 1); 3641 ev_start (EV_A_ (W)w, 1);
2544 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3642 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2545 wlist_add (&anfds[fd].head, (WL)w); 3643 wlist_add (&anfds[fd].head, (WL)w);
2546 3644
3645 /* common bug, apparently */
3646 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3647
2547 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3648 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2548 w->events &= ~EV__IOFDSET; 3649 w->events &= ~EV__IOFDSET;
2549 3650
2550 EV_FREQUENT_CHECK; 3651 EV_FREQUENT_CHECK;
2551} 3652}
2552 3653
2553void noinline 3654void noinline
2554ev_io_stop (EV_P_ ev_io *w) 3655ev_io_stop (EV_P_ ev_io *w) EV_THROW
2555{ 3656{
2556 clear_pending (EV_A_ (W)w); 3657 clear_pending (EV_A_ (W)w);
2557 if (expect_false (!ev_is_active (w))) 3658 if (expect_false (!ev_is_active (w)))
2558 return; 3659 return;
2559 3660
… …
2562 EV_FREQUENT_CHECK; 3663 EV_FREQUENT_CHECK;
2563 3664
2564 wlist_del (&anfds[w->fd].head, (WL)w); 3665 wlist_del (&anfds[w->fd].head, (WL)w);
2565 ev_stop (EV_A_ (W)w); 3666 ev_stop (EV_A_ (W)w);
2566 3667
2567 fd_change (EV_A_ w->fd, 1); 3668 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2568 3669
2569 EV_FREQUENT_CHECK; 3670 EV_FREQUENT_CHECK;
2570} 3671}
2571 3672
2572void noinline 3673void noinline
2573ev_timer_start (EV_P_ ev_timer *w) 3674ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2574{ 3675{
2575 if (expect_false (ev_is_active (w))) 3676 if (expect_false (ev_is_active (w)))
2576 return; 3677 return;
2577 3678
2578 ev_at (w) += mn_now; 3679 ev_at (w) += mn_now;
… …
2592 3693
2593 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3694 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2594} 3695}
2595 3696
2596void noinline 3697void noinline
2597ev_timer_stop (EV_P_ ev_timer *w) 3698ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2598{ 3699{
2599 clear_pending (EV_A_ (W)w); 3700 clear_pending (EV_A_ (W)w);
2600 if (expect_false (!ev_is_active (w))) 3701 if (expect_false (!ev_is_active (w)))
2601 return; 3702 return;
2602 3703
… …
2622 3723
2623 EV_FREQUENT_CHECK; 3724 EV_FREQUENT_CHECK;
2624} 3725}
2625 3726
2626void noinline 3727void noinline
2627ev_timer_again (EV_P_ ev_timer *w) 3728ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2628{ 3729{
2629 EV_FREQUENT_CHECK; 3730 EV_FREQUENT_CHECK;
3731
3732 clear_pending (EV_A_ (W)w);
2630 3733
2631 if (ev_is_active (w)) 3734 if (ev_is_active (w))
2632 { 3735 {
2633 if (w->repeat) 3736 if (w->repeat)
2634 { 3737 {
… …
2647 3750
2648 EV_FREQUENT_CHECK; 3751 EV_FREQUENT_CHECK;
2649} 3752}
2650 3753
2651ev_tstamp 3754ev_tstamp
2652ev_timer_remaining (EV_P_ ev_timer *w) 3755ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2653{ 3756{
2654 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3757 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2655} 3758}
2656 3759
2657#if EV_PERIODIC_ENABLE 3760#if EV_PERIODIC_ENABLE
2658void noinline 3761void noinline
2659ev_periodic_start (EV_P_ ev_periodic *w) 3762ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2660{ 3763{
2661 if (expect_false (ev_is_active (w))) 3764 if (expect_false (ev_is_active (w)))
2662 return; 3765 return;
2663 3766
2664 if (w->reschedule_cb) 3767 if (w->reschedule_cb)
2665 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3768 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2666 else if (w->interval) 3769 else if (w->interval)
2667 { 3770 {
2668 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3771 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2669 /* this formula differs from the one in periodic_reify because we do not always round up */ 3772 periodic_recalc (EV_A_ w);
2670 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2671 } 3773 }
2672 else 3774 else
2673 ev_at (w) = w->offset; 3775 ev_at (w) = w->offset;
2674 3776
2675 EV_FREQUENT_CHECK; 3777 EV_FREQUENT_CHECK;
… …
2685 3787
2686 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3788 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2687} 3789}
2688 3790
2689void noinline 3791void noinline
2690ev_periodic_stop (EV_P_ ev_periodic *w) 3792ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2691{ 3793{
2692 clear_pending (EV_A_ (W)w); 3794 clear_pending (EV_A_ (W)w);
2693 if (expect_false (!ev_is_active (w))) 3795 if (expect_false (!ev_is_active (w)))
2694 return; 3796 return;
2695 3797
… …
2713 3815
2714 EV_FREQUENT_CHECK; 3816 EV_FREQUENT_CHECK;
2715} 3817}
2716 3818
2717void noinline 3819void noinline
2718ev_periodic_again (EV_P_ ev_periodic *w) 3820ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2719{ 3821{
2720 /* TODO: use adjustheap and recalculation */ 3822 /* TODO: use adjustheap and recalculation */
2721 ev_periodic_stop (EV_A_ w); 3823 ev_periodic_stop (EV_A_ w);
2722 ev_periodic_start (EV_A_ w); 3824 ev_periodic_start (EV_A_ w);
2723} 3825}
… …
2725 3827
2726#ifndef SA_RESTART 3828#ifndef SA_RESTART
2727# define SA_RESTART 0 3829# define SA_RESTART 0
2728#endif 3830#endif
2729 3831
3832#if EV_SIGNAL_ENABLE
3833
2730void noinline 3834void noinline
2731ev_signal_start (EV_P_ ev_signal *w) 3835ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2732{ 3836{
2733 if (expect_false (ev_is_active (w))) 3837 if (expect_false (ev_is_active (w)))
2734 return; 3838 return;
2735 3839
2736 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3840 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2738#if EV_MULTIPLICITY 3842#if EV_MULTIPLICITY
2739 assert (("libev: a signal must not be attached to two different loops", 3843 assert (("libev: a signal must not be attached to two different loops",
2740 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3844 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2741 3845
2742 signals [w->signum - 1].loop = EV_A; 3846 signals [w->signum - 1].loop = EV_A;
3847 ECB_MEMORY_FENCE_RELEASE;
2743#endif 3848#endif
2744 3849
2745 EV_FREQUENT_CHECK; 3850 EV_FREQUENT_CHECK;
2746 3851
2747#if EV_USE_SIGNALFD 3852#if EV_USE_SIGNALFD
… …
2794 sa.sa_handler = ev_sighandler; 3899 sa.sa_handler = ev_sighandler;
2795 sigfillset (&sa.sa_mask); 3900 sigfillset (&sa.sa_mask);
2796 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3901 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2797 sigaction (w->signum, &sa, 0); 3902 sigaction (w->signum, &sa, 0);
2798 3903
3904 if (origflags & EVFLAG_NOSIGMASK)
3905 {
2799 sigemptyset (&sa.sa_mask); 3906 sigemptyset (&sa.sa_mask);
2800 sigaddset (&sa.sa_mask, w->signum); 3907 sigaddset (&sa.sa_mask, w->signum);
2801 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3908 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3909 }
2802#endif 3910#endif
2803 } 3911 }
2804 3912
2805 EV_FREQUENT_CHECK; 3913 EV_FREQUENT_CHECK;
2806} 3914}
2807 3915
2808void noinline 3916void noinline
2809ev_signal_stop (EV_P_ ev_signal *w) 3917ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2810{ 3918{
2811 clear_pending (EV_A_ (W)w); 3919 clear_pending (EV_A_ (W)w);
2812 if (expect_false (!ev_is_active (w))) 3920 if (expect_false (!ev_is_active (w)))
2813 return; 3921 return;
2814 3922
… …
2840 } 3948 }
2841 3949
2842 EV_FREQUENT_CHECK; 3950 EV_FREQUENT_CHECK;
2843} 3951}
2844 3952
3953#endif
3954
3955#if EV_CHILD_ENABLE
3956
2845void 3957void
2846ev_child_start (EV_P_ ev_child *w) 3958ev_child_start (EV_P_ ev_child *w) EV_THROW
2847{ 3959{
2848#if EV_MULTIPLICITY 3960#if EV_MULTIPLICITY
2849 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3961 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2850#endif 3962#endif
2851 if (expect_false (ev_is_active (w))) 3963 if (expect_false (ev_is_active (w)))
2852 return; 3964 return;
2853 3965
2854 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
2855 3967
2856 ev_start (EV_A_ (W)w, 1); 3968 ev_start (EV_A_ (W)w, 1);
2857 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3969 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2858 3970
2859 EV_FREQUENT_CHECK; 3971 EV_FREQUENT_CHECK;
2860} 3972}
2861 3973
2862void 3974void
2863ev_child_stop (EV_P_ ev_child *w) 3975ev_child_stop (EV_P_ ev_child *w) EV_THROW
2864{ 3976{
2865 clear_pending (EV_A_ (W)w); 3977 clear_pending (EV_A_ (W)w);
2866 if (expect_false (!ev_is_active (w))) 3978 if (expect_false (!ev_is_active (w)))
2867 return; 3979 return;
2868 3980
2869 EV_FREQUENT_CHECK; 3981 EV_FREQUENT_CHECK;
2870 3982
2871 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3983 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2872 ev_stop (EV_A_ (W)w); 3984 ev_stop (EV_A_ (W)w);
2873 3985
2874 EV_FREQUENT_CHECK; 3986 EV_FREQUENT_CHECK;
2875} 3987}
3988
3989#endif
2876 3990
2877#if EV_STAT_ENABLE 3991#if EV_STAT_ENABLE
2878 3992
2879# ifdef _WIN32 3993# ifdef _WIN32
2880# undef lstat 3994# undef lstat
… …
2893# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4007# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2894 4008
2895static void noinline 4009static void noinline
2896infy_add (EV_P_ ev_stat *w) 4010infy_add (EV_P_ ev_stat *w)
2897{ 4011{
2898 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); 4012 w->wd = inotify_add_watch (fs_fd, w->path,
4013 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4014 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4015 | IN_DONT_FOLLOW | IN_MASK_ADD);
2899 4016
2900 if (w->wd >= 0) 4017 if (w->wd >= 0)
2901 { 4018 {
2902 struct statfs sfs; 4019 struct statfs sfs;
2903 4020
… …
2907 4024
2908 if (!fs_2625) 4025 if (!fs_2625)
2909 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4026 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2910 else if (!statfs (w->path, &sfs) 4027 else if (!statfs (w->path, &sfs)
2911 && (sfs.f_type == 0x1373 /* devfs */ 4028 && (sfs.f_type == 0x1373 /* devfs */
4029 || sfs.f_type == 0x4006 /* fat */
4030 || sfs.f_type == 0x4d44 /* msdos */
2912 || sfs.f_type == 0xEF53 /* ext2/3 */ 4031 || sfs.f_type == 0xEF53 /* ext2/3 */
4032 || sfs.f_type == 0x72b6 /* jffs2 */
4033 || sfs.f_type == 0x858458f6 /* ramfs */
4034 || sfs.f_type == 0x5346544e /* ntfs */
2913 || sfs.f_type == 0x3153464a /* jfs */ 4035 || sfs.f_type == 0x3153464a /* jfs */
4036 || sfs.f_type == 0x9123683e /* btrfs */
2914 || sfs.f_type == 0x52654973 /* reiser3 */ 4037 || sfs.f_type == 0x52654973 /* reiser3 */
2915 || sfs.f_type == 0x01021994 /* tempfs */ 4038 || sfs.f_type == 0x01021994 /* tmpfs */
2916 || sfs.f_type == 0x58465342 /* xfs */)) 4039 || sfs.f_type == 0x58465342 /* xfs */))
2917 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4040 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2918 else 4041 else
2919 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4042 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2920 } 4043 }
… …
2941 if (!pend || pend == path) 4064 if (!pend || pend == path)
2942 break; 4065 break;
2943 4066
2944 *pend = 0; 4067 *pend = 0;
2945 w->wd = inotify_add_watch (fs_fd, path, mask); 4068 w->wd = inotify_add_watch (fs_fd, path, mask);
2946 } 4069 }
2947 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 4070 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2948 } 4071 }
2949 } 4072 }
2950 4073
2951 if (w->wd >= 0) 4074 if (w->wd >= 0)
2952 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4075 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2953 4076
2954 /* now re-arm timer, if required */ 4077 /* now re-arm timer, if required */
2955 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4078 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2956 ev_timer_again (EV_A_ &w->timer); 4079 ev_timer_again (EV_A_ &w->timer);
2957 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4080 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2965 4088
2966 if (wd < 0) 4089 if (wd < 0)
2967 return; 4090 return;
2968 4091
2969 w->wd = -2; 4092 w->wd = -2;
2970 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 4093 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2971 wlist_del (&fs_hash [slot].head, (WL)w); 4094 wlist_del (&fs_hash [slot].head, (WL)w);
2972 4095
2973 /* remove this watcher, if others are watching it, they will rearm */ 4096 /* remove this watcher, if others are watching it, they will rearm */
2974 inotify_rm_watch (fs_fd, wd); 4097 inotify_rm_watch (fs_fd, wd);
2975} 4098}
… …
2977static void noinline 4100static void noinline
2978infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4101infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2979{ 4102{
2980 if (slot < 0) 4103 if (slot < 0)
2981 /* overflow, need to check for all hash slots */ 4104 /* overflow, need to check for all hash slots */
2982 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4105 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2983 infy_wd (EV_A_ slot, wd, ev); 4106 infy_wd (EV_A_ slot, wd, ev);
2984 else 4107 else
2985 { 4108 {
2986 WL w_; 4109 WL w_;
2987 4110
2988 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 4111 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2989 { 4112 {
2990 ev_stat *w = (ev_stat *)w_; 4113 ev_stat *w = (ev_stat *)w_;
2991 w_ = w_->next; /* lets us remove this watcher and all before it */ 4114 w_ = w_->next; /* lets us remove this watcher and all before it */
2992 4115
2993 if (w->wd == wd || wd == -1) 4116 if (w->wd == wd || wd == -1)
2994 { 4117 {
2995 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 4118 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2996 { 4119 {
2997 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4120 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2998 w->wd = -1; 4121 w->wd = -1;
2999 infy_add (EV_A_ w); /* re-add, no matter what */ 4122 infy_add (EV_A_ w); /* re-add, no matter what */
3000 } 4123 }
3001 4124
3002 stat_timer_cb (EV_A_ &w->timer, 0); 4125 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3018 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4141 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3019 ofs += sizeof (struct inotify_event) + ev->len; 4142 ofs += sizeof (struct inotify_event) + ev->len;
3020 } 4143 }
3021} 4144}
3022 4145
3023inline_size unsigned int
3024ev_linux_version (void)
3025{
3026 struct utsname buf;
3027 unsigned int v;
3028 int i;
3029 char *p = buf.release;
3030
3031 if (uname (&buf))
3032 return 0;
3033
3034 for (i = 3+1; --i; )
3035 {
3036 unsigned int c = 0;
3037
3038 for (;;)
3039 {
3040 if (*p >= '0' && *p <= '9')
3041 c = c * 10 + *p++ - '0';
3042 else
3043 {
3044 p += *p == '.';
3045 break;
3046 }
3047 }
3048
3049 v = (v << 8) | c;
3050 }
3051
3052 return v;
3053}
3054
3055inline_size void 4146inline_size void ecb_cold
3056ev_check_2625 (EV_P) 4147ev_check_2625 (EV_P)
3057{ 4148{
3058 /* kernels < 2.6.25 are borked 4149 /* kernels < 2.6.25 are borked
3059 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4150 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3060 */ 4151 */
… …
3065} 4156}
3066 4157
3067inline_size int 4158inline_size int
3068infy_newfd (void) 4159infy_newfd (void)
3069{ 4160{
3070#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4161#if defined IN_CLOEXEC && defined IN_NONBLOCK
3071 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4162 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3072 if (fd >= 0) 4163 if (fd >= 0)
3073 return fd; 4164 return fd;
3074#endif 4165#endif
3075 return inotify_init (); 4166 return inotify_init ();
… …
3116 ev_io_set (&fs_w, fs_fd, EV_READ); 4207 ev_io_set (&fs_w, fs_fd, EV_READ);
3117 ev_io_start (EV_A_ &fs_w); 4208 ev_io_start (EV_A_ &fs_w);
3118 ev_unref (EV_A); 4209 ev_unref (EV_A);
3119 } 4210 }
3120 4211
3121 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4212 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3122 { 4213 {
3123 WL w_ = fs_hash [slot].head; 4214 WL w_ = fs_hash [slot].head;
3124 fs_hash [slot].head = 0; 4215 fs_hash [slot].head = 0;
3125 4216
3126 while (w_) 4217 while (w_)
… …
3150#else 4241#else
3151# define EV_LSTAT(p,b) lstat (p, b) 4242# define EV_LSTAT(p,b) lstat (p, b)
3152#endif 4243#endif
3153 4244
3154void 4245void
3155ev_stat_stat (EV_P_ ev_stat *w) 4246ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3156{ 4247{
3157 if (lstat (w->path, &w->attr) < 0) 4248 if (lstat (w->path, &w->attr) < 0)
3158 w->attr.st_nlink = 0; 4249 w->attr.st_nlink = 0;
3159 else if (!w->attr.st_nlink) 4250 else if (!w->attr.st_nlink)
3160 w->attr.st_nlink = 1; 4251 w->attr.st_nlink = 1;
… …
3199 ev_feed_event (EV_A_ w, EV_STAT); 4290 ev_feed_event (EV_A_ w, EV_STAT);
3200 } 4291 }
3201} 4292}
3202 4293
3203void 4294void
3204ev_stat_start (EV_P_ ev_stat *w) 4295ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3205{ 4296{
3206 if (expect_false (ev_is_active (w))) 4297 if (expect_false (ev_is_active (w)))
3207 return; 4298 return;
3208 4299
3209 ev_stat_stat (EV_A_ w); 4300 ev_stat_stat (EV_A_ w);
… …
3230 4321
3231 EV_FREQUENT_CHECK; 4322 EV_FREQUENT_CHECK;
3232} 4323}
3233 4324
3234void 4325void
3235ev_stat_stop (EV_P_ ev_stat *w) 4326ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3236{ 4327{
3237 clear_pending (EV_A_ (W)w); 4328 clear_pending (EV_A_ (W)w);
3238 if (expect_false (!ev_is_active (w))) 4329 if (expect_false (!ev_is_active (w)))
3239 return; 4330 return;
3240 4331
… …
3256} 4347}
3257#endif 4348#endif
3258 4349
3259#if EV_IDLE_ENABLE 4350#if EV_IDLE_ENABLE
3260void 4351void
3261ev_idle_start (EV_P_ ev_idle *w) 4352ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3262{ 4353{
3263 if (expect_false (ev_is_active (w))) 4354 if (expect_false (ev_is_active (w)))
3264 return; 4355 return;
3265 4356
3266 pri_adjust (EV_A_ (W)w); 4357 pri_adjust (EV_A_ (W)w);
… …
3279 4370
3280 EV_FREQUENT_CHECK; 4371 EV_FREQUENT_CHECK;
3281} 4372}
3282 4373
3283void 4374void
3284ev_idle_stop (EV_P_ ev_idle *w) 4375ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3285{ 4376{
3286 clear_pending (EV_A_ (W)w); 4377 clear_pending (EV_A_ (W)w);
3287 if (expect_false (!ev_is_active (w))) 4378 if (expect_false (!ev_is_active (w)))
3288 return; 4379 return;
3289 4380
… …
3301 4392
3302 EV_FREQUENT_CHECK; 4393 EV_FREQUENT_CHECK;
3303} 4394}
3304#endif 4395#endif
3305 4396
4397#if EV_PREPARE_ENABLE
3306void 4398void
3307ev_prepare_start (EV_P_ ev_prepare *w) 4399ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3308{ 4400{
3309 if (expect_false (ev_is_active (w))) 4401 if (expect_false (ev_is_active (w)))
3310 return; 4402 return;
3311 4403
3312 EV_FREQUENT_CHECK; 4404 EV_FREQUENT_CHECK;
… …
3317 4409
3318 EV_FREQUENT_CHECK; 4410 EV_FREQUENT_CHECK;
3319} 4411}
3320 4412
3321void 4413void
3322ev_prepare_stop (EV_P_ ev_prepare *w) 4414ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3323{ 4415{
3324 clear_pending (EV_A_ (W)w); 4416 clear_pending (EV_A_ (W)w);
3325 if (expect_false (!ev_is_active (w))) 4417 if (expect_false (!ev_is_active (w)))
3326 return; 4418 return;
3327 4419
… …
3336 4428
3337 ev_stop (EV_A_ (W)w); 4429 ev_stop (EV_A_ (W)w);
3338 4430
3339 EV_FREQUENT_CHECK; 4431 EV_FREQUENT_CHECK;
3340} 4432}
4433#endif
3341 4434
4435#if EV_CHECK_ENABLE
3342void 4436void
3343ev_check_start (EV_P_ ev_check *w) 4437ev_check_start (EV_P_ ev_check *w) EV_THROW
3344{ 4438{
3345 if (expect_false (ev_is_active (w))) 4439 if (expect_false (ev_is_active (w)))
3346 return; 4440 return;
3347 4441
3348 EV_FREQUENT_CHECK; 4442 EV_FREQUENT_CHECK;
… …
3353 4447
3354 EV_FREQUENT_CHECK; 4448 EV_FREQUENT_CHECK;
3355} 4449}
3356 4450
3357void 4451void
3358ev_check_stop (EV_P_ ev_check *w) 4452ev_check_stop (EV_P_ ev_check *w) EV_THROW
3359{ 4453{
3360 clear_pending (EV_A_ (W)w); 4454 clear_pending (EV_A_ (W)w);
3361 if (expect_false (!ev_is_active (w))) 4455 if (expect_false (!ev_is_active (w)))
3362 return; 4456 return;
3363 4457
… …
3372 4466
3373 ev_stop (EV_A_ (W)w); 4467 ev_stop (EV_A_ (W)w);
3374 4468
3375 EV_FREQUENT_CHECK; 4469 EV_FREQUENT_CHECK;
3376} 4470}
4471#endif
3377 4472
3378#if EV_EMBED_ENABLE 4473#if EV_EMBED_ENABLE
3379void noinline 4474void noinline
3380ev_embed_sweep (EV_P_ ev_embed *w) 4475ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3381{ 4476{
3382 ev_loop (w->other, EVLOOP_NONBLOCK); 4477 ev_run (w->other, EVRUN_NOWAIT);
3383} 4478}
3384 4479
3385static void 4480static void
3386embed_io_cb (EV_P_ ev_io *io, int revents) 4481embed_io_cb (EV_P_ ev_io *io, int revents)
3387{ 4482{
3388 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4483 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3389 4484
3390 if (ev_cb (w)) 4485 if (ev_cb (w))
3391 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4486 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3392 else 4487 else
3393 ev_loop (w->other, EVLOOP_NONBLOCK); 4488 ev_run (w->other, EVRUN_NOWAIT);
3394} 4489}
3395 4490
3396static void 4491static void
3397embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4492embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3398{ 4493{
… …
3402 EV_P = w->other; 4497 EV_P = w->other;
3403 4498
3404 while (fdchangecnt) 4499 while (fdchangecnt)
3405 { 4500 {
3406 fd_reify (EV_A); 4501 fd_reify (EV_A);
3407 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4502 ev_run (EV_A_ EVRUN_NOWAIT);
3408 } 4503 }
3409 } 4504 }
3410} 4505}
3411 4506
3412static void 4507static void
… …
3418 4513
3419 { 4514 {
3420 EV_P = w->other; 4515 EV_P = w->other;
3421 4516
3422 ev_loop_fork (EV_A); 4517 ev_loop_fork (EV_A);
3423 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4518 ev_run (EV_A_ EVRUN_NOWAIT);
3424 } 4519 }
3425 4520
3426 ev_embed_start (EV_A_ w); 4521 ev_embed_start (EV_A_ w);
3427} 4522}
3428 4523
… …
3433 ev_idle_stop (EV_A_ idle); 4528 ev_idle_stop (EV_A_ idle);
3434} 4529}
3435#endif 4530#endif
3436 4531
3437void 4532void
3438ev_embed_start (EV_P_ ev_embed *w) 4533ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3439{ 4534{
3440 if (expect_false (ev_is_active (w))) 4535 if (expect_false (ev_is_active (w)))
3441 return; 4536 return;
3442 4537
3443 { 4538 {
… …
3464 4559
3465 EV_FREQUENT_CHECK; 4560 EV_FREQUENT_CHECK;
3466} 4561}
3467 4562
3468void 4563void
3469ev_embed_stop (EV_P_ ev_embed *w) 4564ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3470{ 4565{
3471 clear_pending (EV_A_ (W)w); 4566 clear_pending (EV_A_ (W)w);
3472 if (expect_false (!ev_is_active (w))) 4567 if (expect_false (!ev_is_active (w)))
3473 return; 4568 return;
3474 4569
… …
3484} 4579}
3485#endif 4580#endif
3486 4581
3487#if EV_FORK_ENABLE 4582#if EV_FORK_ENABLE
3488void 4583void
3489ev_fork_start (EV_P_ ev_fork *w) 4584ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3490{ 4585{
3491 if (expect_false (ev_is_active (w))) 4586 if (expect_false (ev_is_active (w)))
3492 return; 4587 return;
3493 4588
3494 EV_FREQUENT_CHECK; 4589 EV_FREQUENT_CHECK;
… …
3499 4594
3500 EV_FREQUENT_CHECK; 4595 EV_FREQUENT_CHECK;
3501} 4596}
3502 4597
3503void 4598void
3504ev_fork_stop (EV_P_ ev_fork *w) 4599ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3505{ 4600{
3506 clear_pending (EV_A_ (W)w); 4601 clear_pending (EV_A_ (W)w);
3507 if (expect_false (!ev_is_active (w))) 4602 if (expect_false (!ev_is_active (w)))
3508 return; 4603 return;
3509 4604
… …
3520 4615
3521 EV_FREQUENT_CHECK; 4616 EV_FREQUENT_CHECK;
3522} 4617}
3523#endif 4618#endif
3524 4619
4620#if EV_CLEANUP_ENABLE
4621void
4622ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4623{
4624 if (expect_false (ev_is_active (w)))
4625 return;
4626
4627 EV_FREQUENT_CHECK;
4628
4629 ev_start (EV_A_ (W)w, ++cleanupcnt);
4630 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4631 cleanups [cleanupcnt - 1] = w;
4632
4633 /* cleanup watchers should never keep a refcount on the loop */
4634 ev_unref (EV_A);
4635 EV_FREQUENT_CHECK;
4636}
4637
4638void
4639ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4640{
4641 clear_pending (EV_A_ (W)w);
4642 if (expect_false (!ev_is_active (w)))
4643 return;
4644
4645 EV_FREQUENT_CHECK;
4646 ev_ref (EV_A);
4647
4648 {
4649 int active = ev_active (w);
4650
4651 cleanups [active - 1] = cleanups [--cleanupcnt];
4652 ev_active (cleanups [active - 1]) = active;
4653 }
4654
4655 ev_stop (EV_A_ (W)w);
4656
4657 EV_FREQUENT_CHECK;
4658}
4659#endif
4660
3525#if EV_ASYNC_ENABLE 4661#if EV_ASYNC_ENABLE
3526void 4662void
3527ev_async_start (EV_P_ ev_async *w) 4663ev_async_start (EV_P_ ev_async *w) EV_THROW
3528{ 4664{
3529 if (expect_false (ev_is_active (w))) 4665 if (expect_false (ev_is_active (w)))
3530 return; 4666 return;
4667
4668 w->sent = 0;
3531 4669
3532 evpipe_init (EV_A); 4670 evpipe_init (EV_A);
3533 4671
3534 EV_FREQUENT_CHECK; 4672 EV_FREQUENT_CHECK;
3535 4673
… …
3539 4677
3540 EV_FREQUENT_CHECK; 4678 EV_FREQUENT_CHECK;
3541} 4679}
3542 4680
3543void 4681void
3544ev_async_stop (EV_P_ ev_async *w) 4682ev_async_stop (EV_P_ ev_async *w) EV_THROW
3545{ 4683{
3546 clear_pending (EV_A_ (W)w); 4684 clear_pending (EV_A_ (W)w);
3547 if (expect_false (!ev_is_active (w))) 4685 if (expect_false (!ev_is_active (w)))
3548 return; 4686 return;
3549 4687
… …
3560 4698
3561 EV_FREQUENT_CHECK; 4699 EV_FREQUENT_CHECK;
3562} 4700}
3563 4701
3564void 4702void
3565ev_async_send (EV_P_ ev_async *w) 4703ev_async_send (EV_P_ ev_async *w) EV_THROW
3566{ 4704{
3567 w->sent = 1; 4705 w->sent = 1;
3568 evpipe_write (EV_A_ &async_pending); 4706 evpipe_write (EV_A_ &async_pending);
3569} 4707}
3570#endif 4708#endif
… …
3607 4745
3608 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4746 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3609} 4747}
3610 4748
3611void 4749void
3612ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4750ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3613{ 4751{
3614 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4752 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3615 4753
3616 if (expect_false (!once)) 4754 if (expect_false (!once))
3617 { 4755 {
3618 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4756 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3619 return; 4757 return;
3620 } 4758 }
3621 4759
3622 once->cb = cb; 4760 once->cb = cb;
3623 once->arg = arg; 4761 once->arg = arg;
… …
3638} 4776}
3639 4777
3640/*****************************************************************************/ 4778/*****************************************************************************/
3641 4779
3642#if EV_WALK_ENABLE 4780#if EV_WALK_ENABLE
3643void 4781void ecb_cold
3644ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4782ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3645{ 4783{
3646 int i, j; 4784 int i, j;
3647 ev_watcher_list *wl, *wn; 4785 ev_watcher_list *wl, *wn;
3648 4786
3649 if (types & (EV_IO | EV_EMBED)) 4787 if (types & (EV_IO | EV_EMBED))
… …
3692 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4830 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3693#endif 4831#endif
3694 4832
3695#if EV_IDLE_ENABLE 4833#if EV_IDLE_ENABLE
3696 if (types & EV_IDLE) 4834 if (types & EV_IDLE)
3697 for (j = NUMPRI; i--; ) 4835 for (j = NUMPRI; j--; )
3698 for (i = idlecnt [j]; i--; ) 4836 for (i = idlecnt [j]; i--; )
3699 cb (EV_A_ EV_IDLE, idles [j][i]); 4837 cb (EV_A_ EV_IDLE, idles [j][i]);
3700#endif 4838#endif
3701 4839
3702#if EV_FORK_ENABLE 4840#if EV_FORK_ENABLE
… …
3710 if (types & EV_ASYNC) 4848 if (types & EV_ASYNC)
3711 for (i = asynccnt; i--; ) 4849 for (i = asynccnt; i--; )
3712 cb (EV_A_ EV_ASYNC, asyncs [i]); 4850 cb (EV_A_ EV_ASYNC, asyncs [i]);
3713#endif 4851#endif
3714 4852
4853#if EV_PREPARE_ENABLE
3715 if (types & EV_PREPARE) 4854 if (types & EV_PREPARE)
3716 for (i = preparecnt; i--; ) 4855 for (i = preparecnt; i--; )
3717#if EV_EMBED_ENABLE 4856# if EV_EMBED_ENABLE
3718 if (ev_cb (prepares [i]) != embed_prepare_cb) 4857 if (ev_cb (prepares [i]) != embed_prepare_cb)
3719#endif 4858# endif
3720 cb (EV_A_ EV_PREPARE, prepares [i]); 4859 cb (EV_A_ EV_PREPARE, prepares [i]);
4860#endif
3721 4861
4862#if EV_CHECK_ENABLE
3722 if (types & EV_CHECK) 4863 if (types & EV_CHECK)
3723 for (i = checkcnt; i--; ) 4864 for (i = checkcnt; i--; )
3724 cb (EV_A_ EV_CHECK, checks [i]); 4865 cb (EV_A_ EV_CHECK, checks [i]);
4866#endif
3725 4867
4868#if EV_SIGNAL_ENABLE
3726 if (types & EV_SIGNAL) 4869 if (types & EV_SIGNAL)
3727 for (i = 0; i < EV_NSIG - 1; ++i) 4870 for (i = 0; i < EV_NSIG - 1; ++i)
3728 for (wl = signals [i].head; wl; ) 4871 for (wl = signals [i].head; wl; )
3729 { 4872 {
3730 wn = wl->next; 4873 wn = wl->next;
3731 cb (EV_A_ EV_SIGNAL, wl); 4874 cb (EV_A_ EV_SIGNAL, wl);
3732 wl = wn; 4875 wl = wn;
3733 } 4876 }
4877#endif
3734 4878
4879#if EV_CHILD_ENABLE
3735 if (types & EV_CHILD) 4880 if (types & EV_CHILD)
3736 for (i = EV_PID_HASHSIZE; i--; ) 4881 for (i = (EV_PID_HASHSIZE); i--; )
3737 for (wl = childs [i]; wl; ) 4882 for (wl = childs [i]; wl; )
3738 { 4883 {
3739 wn = wl->next; 4884 wn = wl->next;
3740 cb (EV_A_ EV_CHILD, wl); 4885 cb (EV_A_ EV_CHILD, wl);
3741 wl = wn; 4886 wl = wn;
3742 } 4887 }
4888#endif
3743/* EV_STAT 0x00001000 /* stat data changed */ 4889/* EV_STAT 0x00001000 /* stat data changed */
3744/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4890/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3745} 4891}
3746#endif 4892#endif
3747 4893
3748#if EV_MULTIPLICITY 4894#if EV_MULTIPLICITY
3749 #include "ev_wrap.h" 4895 #include "ev_wrap.h"
3750#endif 4896#endif
3751 4897
3752#ifdef __cplusplus
3753}
3754#endif
3755

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