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Comparing libev/ev.c (file contents):
Revision 1.325 by root, Sun Jan 24 12:31:55 2010 UTC vs.
Revision 1.458 by root, Sun Oct 27 16:26:07 2013 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
163 173
164#include <assert.h> 174#include <assert.h>
165#include <errno.h> 175#include <errno.h>
166#include <sys/types.h> 176#include <sys/types.h>
167#include <time.h> 177#include <time.h>
178#include <limits.h>
168 179
169#include <signal.h> 180#include <signal.h>
170 181
171#ifdef EV_H 182#ifdef EV_H
172# include EV_H 183# include EV_H
173#else 184#else
174# 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
175#endif 197#endif
176 198
177#ifndef _WIN32 199#ifndef _WIN32
178# include <sys/time.h> 200# include <sys/time.h>
179# include <sys/wait.h> 201# include <sys/wait.h>
180# include <unistd.h> 202# include <unistd.h>
181#else 203#else
182# include <io.h> 204# include <io.h>
183# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
184# include <windows.h> 207# include <windows.h>
185# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
186# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
187# endif 210# endif
211# undef EV_AVOID_STDIO
188#endif 212#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
189 221
190/* 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 */
191 223
192/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
193#if defined (EV_NSIG) 225#if defined EV_NSIG
194/* use what's provided */ 226/* use what's provided */
195#elif defined (NSIG) 227#elif defined NSIG
196# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
197#elif defined(_NSIG) 229#elif defined _NSIG
198# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
199#elif defined (SIGMAX) 231#elif defined SIGMAX
200# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
201#elif defined (SIG_MAX) 233#elif defined SIG_MAX
202# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
203#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
204# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
205#elif defined (MAXSIG) 237#elif defined MAXSIG
206# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
207#elif defined (MAX_SIG) 239#elif defined MAX_SIG
208# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
209#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
210# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
211#elif defined (_sys_nsig) 243#elif defined _sys_nsig
212# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
213#else 245#else
214# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
215/* to make it compile regardless, just remove the above line */ 247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
216# define EV_NSIG 65 249# define EV_NSIG 65
250#endif
251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
217#endif 254#endif
218 255
219#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
220# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
221# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
222# else 259# else
223# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
224# endif 261# endif
225#endif 262#endif
226 263
227#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
228# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
229# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
230# else 267# else
231# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
232# endif 269# endif
233#endif 270#endif
234 271
… …
236# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
237#endif 274#endif
238 275
239#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
240# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
241# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
242# else 279# else
243# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
244# endif 281# endif
245#endif 282#endif
246 283
247#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
248# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
249#endif 286#endif
250 287
251#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
252# ifdef _WIN32 289# ifdef _WIN32
253# define EV_USE_POLL 0 290# define EV_USE_POLL 0
254# else 291# else
255# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
256# endif 293# endif
257#endif 294#endif
258 295
259#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
260# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
261# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
262# else 299# else
263# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
264# endif 301# endif
265#endif 302#endif
266 303
… …
272# define EV_USE_PORT 0 309# define EV_USE_PORT 0
273#endif 310#endif
274 311
275#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
276# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
277# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
278# else 315# else
279# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
280# endif 317# endif
281#endif 318#endif
282 319
283#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
284# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
285# define EV_PID_HASHSIZE 1
286# else
287# define EV_PID_HASHSIZE 16
288# endif
289#endif 322#endif
290 323
291#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
292# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
293# define EV_INOTIFY_HASHSIZE 1
294# else
295# define EV_INOTIFY_HASHSIZE 16
296# endif
297#endif 326#endif
298 327
299#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
300# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
301# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
302# else 331# else
303# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
304# endif 333# endif
305#endif 334#endif
306 335
307#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
308# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
309# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
310# else 339# else
311# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
312# endif 341# endif
313#endif 342#endif
314 343
… …
317# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
318# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
319#endif 348#endif
320 349
321#ifndef EV_VERIFY 350#ifndef EV_VERIFY
322# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
323#endif 352#endif
324 353
325#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
326# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
327#endif 356#endif
328 357
329#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
330# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif
361
362#ifdef ANDROID
363/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT
365# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL
368# define EV_USE_CLOCK_SYSCALL 0
369#endif
370
371/* aix's poll.h seems to cause lots of trouble */
372#ifdef _AIX
373/* AIX has a completely broken poll.h header */
374# undef EV_USE_POLL
375# define EV_USE_POLL 0
331#endif 376#endif
332 377
333/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 378/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
334/* which makes programs even slower. might work on other unices, too. */ 379/* which makes programs even slower. might work on other unices, too. */
335#if EV_USE_CLOCK_SYSCALL 380#if EV_USE_CLOCK_SYSCALL
336# include <syscall.h> 381# include <sys/syscall.h>
337# ifdef SYS_clock_gettime 382# ifdef SYS_clock_gettime
338# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
339# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
340# define EV_USE_MONOTONIC 1 385# define EV_USE_MONOTONIC 1
341# else 386# else
… …
344# endif 389# endif
345#endif 390#endif
346 391
347/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 392/* this block fixes any misconfiguration where we know we run into trouble otherwise */
348 393
349#ifdef _AIX
350/* AIX has a completely broken poll.h header */
351# undef EV_USE_POLL
352# define EV_USE_POLL 0
353#endif
354
355#ifndef CLOCK_MONOTONIC 394#ifndef CLOCK_MONOTONIC
356# undef EV_USE_MONOTONIC 395# undef EV_USE_MONOTONIC
357# define EV_USE_MONOTONIC 0 396# define EV_USE_MONOTONIC 0
358#endif 397#endif
359 398
… …
366# undef EV_USE_INOTIFY 405# undef EV_USE_INOTIFY
367# define EV_USE_INOTIFY 0 406# define EV_USE_INOTIFY 0
368#endif 407#endif
369 408
370#if !EV_USE_NANOSLEEP 409#if !EV_USE_NANOSLEEP
371# ifndef _WIN32 410/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux
372# include <sys/select.h> 412# include <sys/select.h>
373# endif 413# endif
374#endif 414#endif
375 415
376#if EV_USE_INOTIFY 416#if EV_USE_INOTIFY
377# include <sys/utsname.h>
378# include <sys/statfs.h> 417# include <sys/statfs.h>
379# include <sys/inotify.h> 418# include <sys/inotify.h>
380/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 419/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
381# ifndef IN_DONT_FOLLOW 420# ifndef IN_DONT_FOLLOW
382# undef EV_USE_INOTIFY 421# undef EV_USE_INOTIFY
383# define EV_USE_INOTIFY 0 422# define EV_USE_INOTIFY 0
384# endif 423# endif
385#endif
386
387#if EV_SELECT_IS_WINSOCKET
388# include <winsock.h>
389#endif 424#endif
390 425
391#if EV_USE_EVENTFD 426#if EV_USE_EVENTFD
392/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
393# include <stdint.h> 428# include <stdint.h>
… …
399# define EFD_CLOEXEC O_CLOEXEC 434# define EFD_CLOEXEC O_CLOEXEC
400# else 435# else
401# define EFD_CLOEXEC 02000000 436# define EFD_CLOEXEC 02000000
402# endif 437# endif
403# endif 438# endif
404# ifdef __cplusplus
405extern "C" {
406# endif
407int eventfd (unsigned int initval, int flags); 439EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
408# ifdef __cplusplus
409}
410# endif
411#endif 440#endif
412 441
413#if EV_USE_SIGNALFD 442#if EV_USE_SIGNALFD
414/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 443/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
415# include <stdint.h> 444# include <stdint.h>
… …
421# define SFD_CLOEXEC O_CLOEXEC 450# define SFD_CLOEXEC O_CLOEXEC
422# else 451# else
423# define SFD_CLOEXEC 02000000 452# define SFD_CLOEXEC 02000000
424# endif 453# endif
425# endif 454# endif
426# ifdef __cplusplus
427extern "C" {
428# endif
429int signalfd (int fd, const sigset_t *mask, int flags); 455EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
430 456
431struct signalfd_siginfo 457struct signalfd_siginfo
432{ 458{
433 uint32_t ssi_signo; 459 uint32_t ssi_signo;
434 char pad[128 - sizeof (uint32_t)]; 460 char pad[128 - sizeof (uint32_t)];
435}; 461};
436# ifdef __cplusplus
437}
438# endif 462#endif
439#endif
440
441 463
442/**/ 464/**/
443 465
444#if EV_VERIFY >= 3 466#if EV_VERIFY >= 3
445# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 467# define EV_FREQUENT_CHECK ev_verify (EV_A)
446#else 468#else
447# define EV_FREQUENT_CHECK do { } while (0) 469# define EV_FREQUENT_CHECK do { } while (0)
448#endif 470#endif
449 471
450/* 472/*
451 * This is used to avoid floating point rounding problems. 473 * This is used to work around floating point rounding problems.
452 * It is added to ev_rt_now when scheduling periodics
453 * to ensure progress, time-wise, even when rounding
454 * errors are against us.
455 * This value is good at least till the year 4000. 474 * This value is good at least till the year 4000.
456 * Better solutions welcome.
457 */ 475 */
458#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 476#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
477/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
459 478
460#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 479#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
461#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 480#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
462 481
482#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
483#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
484
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */
487/*
488 * libecb - http://software.schmorp.de/pkg/libecb
489 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved.
493 *
494 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met:
496 *
497 * 1. Redistributions of source code must retain the above copyright notice,
498 * this list of conditions and the following disclaimer.
499 *
500 * 2. Redistributions in binary form must reproduce the above copyright
501 * notice, this list of conditions and the following disclaimer in the
502 * documentation and/or other materials provided with the distribution.
503 *
504 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
505 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
506 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
507 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
508 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE.
514 */
515
516#ifndef ECB_H
517#define ECB_H
518
519/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003
521
522#ifdef _WIN32
523 typedef signed char int8_t;
524 typedef unsigned char uint8_t;
525 typedef signed short int16_t;
526 typedef unsigned short uint16_t;
527 typedef signed int int32_t;
528 typedef unsigned int uint32_t;
463#if __GNUC__ >= 4 529 #if __GNUC__
464# define expect(expr,value) __builtin_expect ((expr),(value)) 530 typedef signed long long int64_t;
465# define noinline __attribute__ ((noinline)) 531 typedef unsigned long long uint64_t;
532 #else /* _MSC_VER || __BORLANDC__ */
533 typedef signed __int64 int64_t;
534 typedef unsigned __int64 uint64_t;
535 #endif
536 #ifdef _WIN64
537 #define ECB_PTRSIZE 8
538 typedef uint64_t uintptr_t;
539 typedef int64_t intptr_t;
540 #else
541 #define ECB_PTRSIZE 4
542 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t;
544 #endif
466#else 545#else
467# define expect(expr,value) (expr) 546 #include <inttypes.h>
468# define noinline 547 #if UINTMAX_MAX > 0xffffffffU
469# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 548 #define ECB_PTRSIZE 8
470# define inline 549 #else
550 #define ECB_PTRSIZE 4
551 #endif
471# endif 552#endif
553
554/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64
556 #if _ILP32
557 #define ECB_AMD64_X32 1
558 #else
559 #define ECB_AMD64 1
472#endif 560 #endif
561#endif
473 562
563/* many compilers define _GNUC_ to some versions but then only implement
564 * what their idiot authors think are the "more important" extensions,
565 * causing enormous grief in return for some better fake benchmark numbers.
566 * or so.
567 * we try to detect these and simply assume they are not gcc - if they have
568 * an issue with that they should have done it right in the first place.
569 */
570#ifndef ECB_GCC_VERSION
571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
572 #define ECB_GCC_VERSION(major,minor) 0
573 #else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif
576#endif
577
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
579#define ECB_C99 (__STDC_VERSION__ >= 199901L)
580#define ECB_C11 (__STDC_VERSION__ >= 201112L)
581#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L)
583
584#if ECB_CPP
585 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END }
588#else
589 #define ECB_EXTERN_C extern
590 #define ECB_EXTERN_C_BEG
591 #define ECB_EXTERN_C_END
592#endif
593
594/*****************************************************************************/
595
596/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
597/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
598
599#if ECB_NO_THREADS
600 #define ECB_NO_SMP 1
601#endif
602
603#if ECB_NO_SMP
604 #define ECB_MEMORY_FENCE do { } while (0)
605#endif
606
607#ifndef ECB_MEMORY_FENCE
608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
609 #if __i386 || __i386__
610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
631 #elif defined __mips__
632 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
633 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
635 #elif defined __alpha__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
637 #elif defined __hppa__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
639 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
640 #elif defined __ia64__
641 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
642 #elif defined __m68k__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
644 #elif defined __m88k__
645 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
646 #elif defined __sh__
647 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
648 #endif
649 #endif
650#endif
651
652#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(4,7)
654 /* see comment below (stdatomic.h) about the C11 memory model. */
655 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
656
657 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
658 * without risking compile time errors with other compilers. We *could*
659 * define our own ecb_clang_has_feature, but I just can't be bothered to work
660 * around this shit time and again.
661 * #elif defined __clang && __has_feature (cxx_atomic)
662 * // see comment below (stdatomic.h) about the C11 memory model.
663 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
664 */
665
666 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
667 #define ECB_MEMORY_FENCE __sync_synchronize ()
668 #elif _MSC_VER >= 1400 /* VC++ 2005 */
669 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
670 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
671 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
672 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
673 #elif defined _WIN32
674 #include <WinNT.h>
675 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
676 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
677 #include <mbarrier.h>
678 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
679 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
680 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
681 #elif __xlC__
682 #define ECB_MEMORY_FENCE __sync ()
683 #endif
684#endif
685
686#ifndef ECB_MEMORY_FENCE
687 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
688 /* we assume that these memory fences work on all variables/all memory accesses, */
689 /* not just C11 atomics and atomic accesses */
690 #include <stdatomic.h>
691 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
692 /* any fence other than seq_cst, which isn't very efficient for us. */
693 /* Why that is, we don't know - either the C11 memory model is quite useless */
694 /* for most usages, or gcc and clang have a bug */
695 /* I *currently* lean towards the latter, and inefficiently implement */
696 /* all three of ecb's fences as a seq_cst fence */
697 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
698 #endif
699#endif
700
701#ifndef ECB_MEMORY_FENCE
702 #if !ECB_AVOID_PTHREADS
703 /*
704 * if you get undefined symbol references to pthread_mutex_lock,
705 * or failure to find pthread.h, then you should implement
706 * the ECB_MEMORY_FENCE operations for your cpu/compiler
707 * OR provide pthread.h and link against the posix thread library
708 * of your system.
709 */
710 #include <pthread.h>
711 #define ECB_NEEDS_PTHREADS 1
712 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
713
714 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
715 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
716 #endif
717#endif
718
719#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
720 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
721#endif
722
723#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
724 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
725#endif
726
727/*****************************************************************************/
728
729#if __cplusplus
730 #define ecb_inline static inline
731#elif ECB_GCC_VERSION(2,5)
732 #define ecb_inline static __inline__
733#elif ECB_C99
734 #define ecb_inline static inline
735#else
736 #define ecb_inline static
737#endif
738
739#if ECB_GCC_VERSION(3,3)
740 #define ecb_restrict __restrict__
741#elif ECB_C99
742 #define ecb_restrict restrict
743#else
744 #define ecb_restrict
745#endif
746
747typedef int ecb_bool;
748
749#define ECB_CONCAT_(a, b) a ## b
750#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
751#define ECB_STRINGIFY_(a) # a
752#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
753
754#define ecb_function_ ecb_inline
755
756#if ECB_GCC_VERSION(3,1)
757 #define ecb_attribute(attrlist) __attribute__(attrlist)
758 #define ecb_is_constant(expr) __builtin_constant_p (expr)
759 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
760 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
761#else
762 #define ecb_attribute(attrlist)
763 #define ecb_is_constant(expr) 0
764 #define ecb_expect(expr,value) (expr)
765 #define ecb_prefetch(addr,rw,locality)
766#endif
767
768/* no emulation for ecb_decltype */
769#if ECB_GCC_VERSION(4,5)
770 #define ecb_decltype(x) __decltype(x)
771#elif ECB_GCC_VERSION(3,0)
772 #define ecb_decltype(x) __typeof(x)
773#endif
774
775#define ecb_noinline ecb_attribute ((__noinline__))
776#define ecb_unused ecb_attribute ((__unused__))
777#define ecb_const ecb_attribute ((__const__))
778#define ecb_pure ecb_attribute ((__pure__))
779
780#if ECB_C11
781 #define ecb_noreturn _Noreturn
782#else
783 #define ecb_noreturn ecb_attribute ((__noreturn__))
784#endif
785
786#if ECB_GCC_VERSION(4,3)
787 #define ecb_artificial ecb_attribute ((__artificial__))
788 #define ecb_hot ecb_attribute ((__hot__))
789 #define ecb_cold ecb_attribute ((__cold__))
790#else
791 #define ecb_artificial
792 #define ecb_hot
793 #define ecb_cold
794#endif
795
796/* put around conditional expressions if you are very sure that the */
797/* expression is mostly true or mostly false. note that these return */
798/* booleans, not the expression. */
474#define expect_false(expr) expect ((expr) != 0, 0) 799#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
475#define expect_true(expr) expect ((expr) != 0, 1) 800#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
801/* for compatibility to the rest of the world */
802#define ecb_likely(expr) ecb_expect_true (expr)
803#define ecb_unlikely(expr) ecb_expect_false (expr)
804
805/* count trailing zero bits and count # of one bits */
806#if ECB_GCC_VERSION(3,4)
807 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
808 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
809 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
810 #define ecb_ctz32(x) __builtin_ctz (x)
811 #define ecb_ctz64(x) __builtin_ctzll (x)
812 #define ecb_popcount32(x) __builtin_popcount (x)
813 /* no popcountll */
814#else
815 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
816 ecb_function_ int
817 ecb_ctz32 (uint32_t x)
818 {
819 int r = 0;
820
821 x &= ~x + 1; /* this isolates the lowest bit */
822
823#if ECB_branchless_on_i386
824 r += !!(x & 0xaaaaaaaa) << 0;
825 r += !!(x & 0xcccccccc) << 1;
826 r += !!(x & 0xf0f0f0f0) << 2;
827 r += !!(x & 0xff00ff00) << 3;
828 r += !!(x & 0xffff0000) << 4;
829#else
830 if (x & 0xaaaaaaaa) r += 1;
831 if (x & 0xcccccccc) r += 2;
832 if (x & 0xf0f0f0f0) r += 4;
833 if (x & 0xff00ff00) r += 8;
834 if (x & 0xffff0000) r += 16;
835#endif
836
837 return r;
838 }
839
840 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
841 ecb_function_ int
842 ecb_ctz64 (uint64_t x)
843 {
844 int shift = x & 0xffffffffU ? 0 : 32;
845 return ecb_ctz32 (x >> shift) + shift;
846 }
847
848 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
849 ecb_function_ int
850 ecb_popcount32 (uint32_t x)
851 {
852 x -= (x >> 1) & 0x55555555;
853 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
854 x = ((x >> 4) + x) & 0x0f0f0f0f;
855 x *= 0x01010101;
856
857 return x >> 24;
858 }
859
860 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
861 ecb_function_ int ecb_ld32 (uint32_t x)
862 {
863 int r = 0;
864
865 if (x >> 16) { x >>= 16; r += 16; }
866 if (x >> 8) { x >>= 8; r += 8; }
867 if (x >> 4) { x >>= 4; r += 4; }
868 if (x >> 2) { x >>= 2; r += 2; }
869 if (x >> 1) { r += 1; }
870
871 return r;
872 }
873
874 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
875 ecb_function_ int ecb_ld64 (uint64_t x)
876 {
877 int r = 0;
878
879 if (x >> 32) { x >>= 32; r += 32; }
880
881 return r + ecb_ld32 (x);
882 }
883#endif
884
885ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
886ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
887ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
888ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
889
890ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
891ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
892{
893 return ( (x * 0x0802U & 0x22110U)
894 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
895}
896
897ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
898ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
899{
900 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
901 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
902 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
903 x = ( x >> 8 ) | ( x << 8);
904
905 return x;
906}
907
908ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
909ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
910{
911 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
912 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
913 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
914 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
915 x = ( x >> 16 ) | ( x << 16);
916
917 return x;
918}
919
920/* popcount64 is only available on 64 bit cpus as gcc builtin */
921/* so for this version we are lazy */
922ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
923ecb_function_ int
924ecb_popcount64 (uint64_t x)
925{
926 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
927}
928
929ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
930ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
931ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
932ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
933ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
934ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
935ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
936ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
937
938ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
939ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
940ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
941ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
942ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
943ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
944ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
945ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
946
947#if ECB_GCC_VERSION(4,3)
948 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
949 #define ecb_bswap32(x) __builtin_bswap32 (x)
950 #define ecb_bswap64(x) __builtin_bswap64 (x)
951#else
952 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
953 ecb_function_ uint16_t
954 ecb_bswap16 (uint16_t x)
955 {
956 return ecb_rotl16 (x, 8);
957 }
958
959 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
960 ecb_function_ uint32_t
961 ecb_bswap32 (uint32_t x)
962 {
963 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
964 }
965
966 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
967 ecb_function_ uint64_t
968 ecb_bswap64 (uint64_t x)
969 {
970 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
971 }
972#endif
973
974#if ECB_GCC_VERSION(4,5)
975 #define ecb_unreachable() __builtin_unreachable ()
976#else
977 /* this seems to work fine, but gcc always emits a warning for it :/ */
978 ecb_inline void ecb_unreachable (void) ecb_noreturn;
979 ecb_inline void ecb_unreachable (void) { }
980#endif
981
982/* try to tell the compiler that some condition is definitely true */
983#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
984
985ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
986ecb_inline unsigned char
987ecb_byteorder_helper (void)
988{
989 /* the union code still generates code under pressure in gcc, */
990 /* but less than using pointers, and always seems to */
991 /* successfully return a constant. */
992 /* the reason why we have this horrible preprocessor mess */
993 /* is to avoid it in all cases, at least on common architectures */
994 /* or when using a recent enough gcc version (>= 4.6) */
995#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
996 return 0x44;
997#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
998 return 0x44;
999#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1000 return 0x11;
1001#else
1002 union
1003 {
1004 uint32_t i;
1005 uint8_t c;
1006 } u = { 0x11223344 };
1007 return u.c;
1008#endif
1009}
1010
1011ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
1012ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1013ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
1014ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1015
1016#if ECB_GCC_VERSION(3,0) || ECB_C99
1017 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1018#else
1019 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1020#endif
1021
1022#if __cplusplus
1023 template<typename T>
1024 static inline T ecb_div_rd (T val, T div)
1025 {
1026 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1027 }
1028 template<typename T>
1029 static inline T ecb_div_ru (T val, T div)
1030 {
1031 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1032 }
1033#else
1034 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1035 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1036#endif
1037
1038#if ecb_cplusplus_does_not_suck
1039 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1040 template<typename T, int N>
1041 static inline int ecb_array_length (const T (&arr)[N])
1042 {
1043 return N;
1044 }
1045#else
1046 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1047#endif
1048
1049/*******************************************************************************/
1050/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1051
1052/* basically, everything uses "ieee pure-endian" floating point numbers */
1053/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1054#if 0 \
1055 || __i386 || __i386__ \
1056 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1057 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1058 || defined __arm__ && defined __ARM_EABI__ \
1059 || defined __s390__ || defined __s390x__ \
1060 || defined __mips__ \
1061 || defined __alpha__ \
1062 || defined __hppa__ \
1063 || defined __ia64__ \
1064 || defined __m68k__ \
1065 || defined __m88k__ \
1066 || defined __sh__ \
1067 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1068 #define ECB_STDFP 1
1069 #include <string.h> /* for memcpy */
1070#else
1071 #define ECB_STDFP 0
1072#endif
1073
1074#ifndef ECB_NO_LIBM
1075
1076 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1077
1078 #ifdef NEN
1079 #define ECB_NAN NAN
1080 #else
1081 #define ECB_NAN INFINITY
1082 #endif
1083
1084 /* converts an ieee half/binary16 to a float */
1085 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1086 ecb_function_ float
1087 ecb_binary16_to_float (uint16_t x)
1088 {
1089 int e = (x >> 10) & 0x1f;
1090 int m = x & 0x3ff;
1091 float r;
1092
1093 if (!e ) r = ldexpf (m , -24);
1094 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1095 else if (m ) r = ECB_NAN;
1096 else r = INFINITY;
1097
1098 return x & 0x8000 ? -r : r;
1099 }
1100
1101 /* convert a float to ieee single/binary32 */
1102 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1103 ecb_function_ uint32_t
1104 ecb_float_to_binary32 (float x)
1105 {
1106 uint32_t r;
1107
1108 #if ECB_STDFP
1109 memcpy (&r, &x, 4);
1110 #else
1111 /* slow emulation, works for anything but -0 */
1112 uint32_t m;
1113 int e;
1114
1115 if (x == 0e0f ) return 0x00000000U;
1116 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1117 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1118 if (x != x ) return 0x7fbfffffU;
1119
1120 m = frexpf (x, &e) * 0x1000000U;
1121
1122 r = m & 0x80000000U;
1123
1124 if (r)
1125 m = -m;
1126
1127 if (e <= -126)
1128 {
1129 m &= 0xffffffU;
1130 m >>= (-125 - e);
1131 e = -126;
1132 }
1133
1134 r |= (e + 126) << 23;
1135 r |= m & 0x7fffffU;
1136 #endif
1137
1138 return r;
1139 }
1140
1141 /* converts an ieee single/binary32 to a float */
1142 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1143 ecb_function_ float
1144 ecb_binary32_to_float (uint32_t x)
1145 {
1146 float r;
1147
1148 #if ECB_STDFP
1149 memcpy (&r, &x, 4);
1150 #else
1151 /* emulation, only works for normals and subnormals and +0 */
1152 int neg = x >> 31;
1153 int e = (x >> 23) & 0xffU;
1154
1155 x &= 0x7fffffU;
1156
1157 if (e)
1158 x |= 0x800000U;
1159 else
1160 e = 1;
1161
1162 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1163 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1164
1165 r = neg ? -r : r;
1166 #endif
1167
1168 return r;
1169 }
1170
1171 /* convert a double to ieee double/binary64 */
1172 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1173 ecb_function_ uint64_t
1174 ecb_double_to_binary64 (double x)
1175 {
1176 uint64_t r;
1177
1178 #if ECB_STDFP
1179 memcpy (&r, &x, 8);
1180 #else
1181 /* slow emulation, works for anything but -0 */
1182 uint64_t m;
1183 int e;
1184
1185 if (x == 0e0 ) return 0x0000000000000000U;
1186 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1187 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1188 if (x != x ) return 0X7ff7ffffffffffffU;
1189
1190 m = frexp (x, &e) * 0x20000000000000U;
1191
1192 r = m & 0x8000000000000000;;
1193
1194 if (r)
1195 m = -m;
1196
1197 if (e <= -1022)
1198 {
1199 m &= 0x1fffffffffffffU;
1200 m >>= (-1021 - e);
1201 e = -1022;
1202 }
1203
1204 r |= ((uint64_t)(e + 1022)) << 52;
1205 r |= m & 0xfffffffffffffU;
1206 #endif
1207
1208 return r;
1209 }
1210
1211 /* converts an ieee double/binary64 to a double */
1212 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1213 ecb_function_ double
1214 ecb_binary64_to_double (uint64_t x)
1215 {
1216 double r;
1217
1218 #if ECB_STDFP
1219 memcpy (&r, &x, 8);
1220 #else
1221 /* emulation, only works for normals and subnormals and +0 */
1222 int neg = x >> 63;
1223 int e = (x >> 52) & 0x7ffU;
1224
1225 x &= 0xfffffffffffffU;
1226
1227 if (e)
1228 x |= 0x10000000000000U;
1229 else
1230 e = 1;
1231
1232 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1233 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1234
1235 r = neg ? -r : r;
1236 #endif
1237
1238 return r;
1239 }
1240
1241#endif
1242
1243#endif
1244
1245/* ECB.H END */
1246
1247#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1248/* if your architecture doesn't need memory fences, e.g. because it is
1249 * single-cpu/core, or if you use libev in a project that doesn't use libev
1250 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1251 * libev, in which cases the memory fences become nops.
1252 * alternatively, you can remove this #error and link against libpthread,
1253 * which will then provide the memory fences.
1254 */
1255# error "memory fences not defined for your architecture, please report"
1256#endif
1257
1258#ifndef ECB_MEMORY_FENCE
1259# define ECB_MEMORY_FENCE do { } while (0)
1260# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1261# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1262#endif
1263
1264#define expect_false(cond) ecb_expect_false (cond)
1265#define expect_true(cond) ecb_expect_true (cond)
1266#define noinline ecb_noinline
1267
476#define inline_size static inline 1268#define inline_size ecb_inline
477 1269
478#if EV_MINIMAL 1270#if EV_FEATURE_CODE
1271# define inline_speed ecb_inline
1272#else
479# define inline_speed static noinline 1273# define inline_speed static noinline
480#else
481# define inline_speed static inline
482#endif 1274#endif
483 1275
484#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1276#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
485 1277
486#if EV_MINPRI == EV_MAXPRI 1278#if EV_MINPRI == EV_MAXPRI
… …
499#define ev_active(w) ((W)(w))->active 1291#define ev_active(w) ((W)(w))->active
500#define ev_at(w) ((WT)(w))->at 1292#define ev_at(w) ((WT)(w))->at
501 1293
502#if EV_USE_REALTIME 1294#if EV_USE_REALTIME
503/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1295/* sig_atomic_t is used to avoid per-thread variables or locking but still */
504/* giving it a reasonably high chance of working on typical architetcures */ 1296/* giving it a reasonably high chance of working on typical architectures */
505static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1297static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
506#endif 1298#endif
507 1299
508#if EV_USE_MONOTONIC 1300#if EV_USE_MONOTONIC
509static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1301static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
523# include "ev_win32.c" 1315# include "ev_win32.c"
524#endif 1316#endif
525 1317
526/*****************************************************************************/ 1318/*****************************************************************************/
527 1319
1320/* define a suitable floor function (only used by periodics atm) */
1321
1322#if EV_USE_FLOOR
1323# include <math.h>
1324# define ev_floor(v) floor (v)
1325#else
1326
1327#include <float.h>
1328
1329/* a floor() replacement function, should be independent of ev_tstamp type */
1330static ev_tstamp noinline
1331ev_floor (ev_tstamp v)
1332{
1333 /* the choice of shift factor is not terribly important */
1334#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1335 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1336#else
1337 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1338#endif
1339
1340 /* argument too large for an unsigned long? */
1341 if (expect_false (v >= shift))
1342 {
1343 ev_tstamp f;
1344
1345 if (v == v - 1.)
1346 return v; /* very large number */
1347
1348 f = shift * ev_floor (v * (1. / shift));
1349 return f + ev_floor (v - f);
1350 }
1351
1352 /* special treatment for negative args? */
1353 if (expect_false (v < 0.))
1354 {
1355 ev_tstamp f = -ev_floor (-v);
1356
1357 return f - (f == v ? 0 : 1);
1358 }
1359
1360 /* fits into an unsigned long */
1361 return (unsigned long)v;
1362}
1363
1364#endif
1365
1366/*****************************************************************************/
1367
1368#ifdef __linux
1369# include <sys/utsname.h>
1370#endif
1371
1372static unsigned int noinline ecb_cold
1373ev_linux_version (void)
1374{
1375#ifdef __linux
1376 unsigned int v = 0;
1377 struct utsname buf;
1378 int i;
1379 char *p = buf.release;
1380
1381 if (uname (&buf))
1382 return 0;
1383
1384 for (i = 3+1; --i; )
1385 {
1386 unsigned int c = 0;
1387
1388 for (;;)
1389 {
1390 if (*p >= '0' && *p <= '9')
1391 c = c * 10 + *p++ - '0';
1392 else
1393 {
1394 p += *p == '.';
1395 break;
1396 }
1397 }
1398
1399 v = (v << 8) | c;
1400 }
1401
1402 return v;
1403#else
1404 return 0;
1405#endif
1406}
1407
1408/*****************************************************************************/
1409
1410#if EV_AVOID_STDIO
1411static void noinline ecb_cold
1412ev_printerr (const char *msg)
1413{
1414 write (STDERR_FILENO, msg, strlen (msg));
1415}
1416#endif
1417
528static void (*syserr_cb)(const char *msg); 1418static void (*syserr_cb)(const char *msg) EV_THROW;
529 1419
530void 1420void ecb_cold
531ev_set_syserr_cb (void (*cb)(const char *msg)) 1421ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
532{ 1422{
533 syserr_cb = cb; 1423 syserr_cb = cb;
534} 1424}
535 1425
536static void noinline 1426static void noinline ecb_cold
537ev_syserr (const char *msg) 1427ev_syserr (const char *msg)
538{ 1428{
539 if (!msg) 1429 if (!msg)
540 msg = "(libev) system error"; 1430 msg = "(libev) system error";
541 1431
542 if (syserr_cb) 1432 if (syserr_cb)
543 syserr_cb (msg); 1433 syserr_cb (msg);
544 else 1434 else
545 { 1435 {
1436#if EV_AVOID_STDIO
1437 ev_printerr (msg);
1438 ev_printerr (": ");
1439 ev_printerr (strerror (errno));
1440 ev_printerr ("\n");
1441#else
546 perror (msg); 1442 perror (msg);
1443#endif
547 abort (); 1444 abort ();
548 } 1445 }
549} 1446}
550 1447
551static void * 1448static void *
552ev_realloc_emul (void *ptr, long size) 1449ev_realloc_emul (void *ptr, long size) EV_THROW
553{ 1450{
554 /* some systems, notably openbsd and darwin, fail to properly 1451 /* some systems, notably openbsd and darwin, fail to properly
555 * implement realloc (x, 0) (as required by both ansi c-98 and 1452 * implement realloc (x, 0) (as required by both ansi c-89 and
556 * the single unix specification, so work around them here. 1453 * the single unix specification, so work around them here.
1454 * recently, also (at least) fedora and debian started breaking it,
1455 * despite documenting it otherwise.
557 */ 1456 */
558 1457
559 if (size) 1458 if (size)
560 return realloc (ptr, size); 1459 return realloc (ptr, size);
561 1460
562 free (ptr); 1461 free (ptr);
563 return 0; 1462 return 0;
564} 1463}
565 1464
566static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1465static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
567 1466
568void 1467void ecb_cold
569ev_set_allocator (void *(*cb)(void *ptr, long size)) 1468ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
570{ 1469{
571 alloc = cb; 1470 alloc = cb;
572} 1471}
573 1472
574inline_speed void * 1473inline_speed void *
… …
576{ 1475{
577 ptr = alloc (ptr, size); 1476 ptr = alloc (ptr, size);
578 1477
579 if (!ptr && size) 1478 if (!ptr && size)
580 { 1479 {
1480#if EV_AVOID_STDIO
1481 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1482#else
581 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1483 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1484#endif
582 abort (); 1485 abort ();
583 } 1486 }
584 1487
585 return ptr; 1488 return ptr;
586} 1489}
… …
602 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1505 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
603 unsigned char unused; 1506 unsigned char unused;
604#if EV_USE_EPOLL 1507#if EV_USE_EPOLL
605 unsigned int egen; /* generation counter to counter epoll bugs */ 1508 unsigned int egen; /* generation counter to counter epoll bugs */
606#endif 1509#endif
607#if EV_SELECT_IS_WINSOCKET 1510#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
608 SOCKET handle; 1511 SOCKET handle;
1512#endif
1513#if EV_USE_IOCP
1514 OVERLAPPED or, ow;
609#endif 1515#endif
610} ANFD; 1516} ANFD;
611 1517
612/* stores the pending event set for a given watcher */ 1518/* stores the pending event set for a given watcher */
613typedef struct 1519typedef struct
… …
655 #undef VAR 1561 #undef VAR
656 }; 1562 };
657 #include "ev_wrap.h" 1563 #include "ev_wrap.h"
658 1564
659 static struct ev_loop default_loop_struct; 1565 static struct ev_loop default_loop_struct;
660 struct ev_loop *ev_default_loop_ptr; 1566 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
661 1567
662#else 1568#else
663 1569
664 ev_tstamp ev_rt_now; 1570 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
665 #define VAR(name,decl) static decl; 1571 #define VAR(name,decl) static decl;
666 #include "ev_vars.h" 1572 #include "ev_vars.h"
667 #undef VAR 1573 #undef VAR
668 1574
669 static int ev_default_loop_ptr; 1575 static int ev_default_loop_ptr;
670 1576
671#endif 1577#endif
672 1578
673#if EV_MINIMAL < 2 1579#if EV_FEATURE_API
674# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1580# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
675# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1581# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
676# define EV_INVOKE_PENDING invoke_cb (EV_A) 1582# define EV_INVOKE_PENDING invoke_cb (EV_A)
677#else 1583#else
678# define EV_RELEASE_CB (void)0 1584# define EV_RELEASE_CB (void)0
679# define EV_ACQUIRE_CB (void)0 1585# define EV_ACQUIRE_CB (void)0
680# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1586# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
681#endif 1587#endif
682 1588
683#define EVUNLOOP_RECURSE 0x80 1589#define EVBREAK_RECURSE 0x80
684 1590
685/*****************************************************************************/ 1591/*****************************************************************************/
686 1592
687#ifndef EV_HAVE_EV_TIME 1593#ifndef EV_HAVE_EV_TIME
688ev_tstamp 1594ev_tstamp
689ev_time (void) 1595ev_time (void) EV_THROW
690{ 1596{
691#if EV_USE_REALTIME 1597#if EV_USE_REALTIME
692 if (expect_true (have_realtime)) 1598 if (expect_true (have_realtime))
693 { 1599 {
694 struct timespec ts; 1600 struct timespec ts;
… …
718 return ev_time (); 1624 return ev_time ();
719} 1625}
720 1626
721#if EV_MULTIPLICITY 1627#if EV_MULTIPLICITY
722ev_tstamp 1628ev_tstamp
723ev_now (EV_P) 1629ev_now (EV_P) EV_THROW
724{ 1630{
725 return ev_rt_now; 1631 return ev_rt_now;
726} 1632}
727#endif 1633#endif
728 1634
729void 1635void
730ev_sleep (ev_tstamp delay) 1636ev_sleep (ev_tstamp delay) EV_THROW
731{ 1637{
732 if (delay > 0.) 1638 if (delay > 0.)
733 { 1639 {
734#if EV_USE_NANOSLEEP 1640#if EV_USE_NANOSLEEP
735 struct timespec ts; 1641 struct timespec ts;
736 1642
737 ts.tv_sec = (time_t)delay; 1643 EV_TS_SET (ts, delay);
738 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
739
740 nanosleep (&ts, 0); 1644 nanosleep (&ts, 0);
741#elif defined(_WIN32) 1645#elif defined _WIN32
742 Sleep ((unsigned long)(delay * 1e3)); 1646 Sleep ((unsigned long)(delay * 1e3));
743#else 1647#else
744 struct timeval tv; 1648 struct timeval tv;
745 1649
746 tv.tv_sec = (time_t)delay;
747 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
748
749 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1650 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
750 /* something not guaranteed by newer posix versions, but guaranteed */ 1651 /* something not guaranteed by newer posix versions, but guaranteed */
751 /* by older ones */ 1652 /* by older ones */
1653 EV_TV_SET (tv, delay);
752 select (0, 0, 0, 0, &tv); 1654 select (0, 0, 0, 0, &tv);
753#endif 1655#endif
754 } 1656 }
755} 1657}
756 1658
757/*****************************************************************************/ 1659/*****************************************************************************/
758 1660
759#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1661#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
760 1662
761/* find a suitable new size for the given array, */ 1663/* find a suitable new size for the given array, */
762/* hopefully by rounding to a ncie-to-malloc size */ 1664/* hopefully by rounding to a nice-to-malloc size */
763inline_size int 1665inline_size int
764array_nextsize (int elem, int cur, int cnt) 1666array_nextsize (int elem, int cur, int cnt)
765{ 1667{
766 int ncur = cur + 1; 1668 int ncur = cur + 1;
767 1669
768 do 1670 do
769 ncur <<= 1; 1671 ncur <<= 1;
770 while (cnt > ncur); 1672 while (cnt > ncur);
771 1673
772 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1674 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
773 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1675 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
774 { 1676 {
775 ncur *= elem; 1677 ncur *= elem;
776 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1678 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
777 ncur = ncur - sizeof (void *) * 4; 1679 ncur = ncur - sizeof (void *) * 4;
… …
779 } 1681 }
780 1682
781 return ncur; 1683 return ncur;
782} 1684}
783 1685
784static noinline void * 1686static void * noinline ecb_cold
785array_realloc (int elem, void *base, int *cur, int cnt) 1687array_realloc (int elem, void *base, int *cur, int cnt)
786{ 1688{
787 *cur = array_nextsize (elem, *cur, cnt); 1689 *cur = array_nextsize (elem, *cur, cnt);
788 return ev_realloc (base, elem * *cur); 1690 return ev_realloc (base, elem * *cur);
789} 1691}
… …
792 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1694 memset ((void *)(base), 0, sizeof (*(base)) * (count))
793 1695
794#define array_needsize(type,base,cur,cnt,init) \ 1696#define array_needsize(type,base,cur,cnt,init) \
795 if (expect_false ((cnt) > (cur))) \ 1697 if (expect_false ((cnt) > (cur))) \
796 { \ 1698 { \
797 int ocur_ = (cur); \ 1699 int ecb_unused ocur_ = (cur); \
798 (base) = (type *)array_realloc \ 1700 (base) = (type *)array_realloc \
799 (sizeof (type), (base), &(cur), (cnt)); \ 1701 (sizeof (type), (base), &(cur), (cnt)); \
800 init ((base) + (ocur_), (cur) - ocur_); \ 1702 init ((base) + (ocur_), (cur) - ocur_); \
801 } 1703 }
802 1704
… …
820pendingcb (EV_P_ ev_prepare *w, int revents) 1722pendingcb (EV_P_ ev_prepare *w, int revents)
821{ 1723{
822} 1724}
823 1725
824void noinline 1726void noinline
825ev_feed_event (EV_P_ void *w, int revents) 1727ev_feed_event (EV_P_ void *w, int revents) EV_THROW
826{ 1728{
827 W w_ = (W)w; 1729 W w_ = (W)w;
828 int pri = ABSPRI (w_); 1730 int pri = ABSPRI (w_);
829 1731
830 if (expect_false (w_->pending)) 1732 if (expect_false (w_->pending))
… …
834 w_->pending = ++pendingcnt [pri]; 1736 w_->pending = ++pendingcnt [pri];
835 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1737 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
836 pendings [pri][w_->pending - 1].w = w_; 1738 pendings [pri][w_->pending - 1].w = w_;
837 pendings [pri][w_->pending - 1].events = revents; 1739 pendings [pri][w_->pending - 1].events = revents;
838 } 1740 }
1741
1742 pendingpri = NUMPRI - 1;
839} 1743}
840 1744
841inline_speed void 1745inline_speed void
842feed_reverse (EV_P_ W w) 1746feed_reverse (EV_P_ W w)
843{ 1747{
… …
863} 1767}
864 1768
865/*****************************************************************************/ 1769/*****************************************************************************/
866 1770
867inline_speed void 1771inline_speed void
868fd_event_nc (EV_P_ int fd, int revents) 1772fd_event_nocheck (EV_P_ int fd, int revents)
869{ 1773{
870 ANFD *anfd = anfds + fd; 1774 ANFD *anfd = anfds + fd;
871 ev_io *w; 1775 ev_io *w;
872 1776
873 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1777 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
885fd_event (EV_P_ int fd, int revents) 1789fd_event (EV_P_ int fd, int revents)
886{ 1790{
887 ANFD *anfd = anfds + fd; 1791 ANFD *anfd = anfds + fd;
888 1792
889 if (expect_true (!anfd->reify)) 1793 if (expect_true (!anfd->reify))
890 fd_event_nc (EV_A_ fd, revents); 1794 fd_event_nocheck (EV_A_ fd, revents);
891} 1795}
892 1796
893void 1797void
894ev_feed_fd_event (EV_P_ int fd, int revents) 1798ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
895{ 1799{
896 if (fd >= 0 && fd < anfdmax) 1800 if (fd >= 0 && fd < anfdmax)
897 fd_event_nc (EV_A_ fd, revents); 1801 fd_event_nocheck (EV_A_ fd, revents);
898} 1802}
899 1803
900/* make sure the external fd watch events are in-sync */ 1804/* make sure the external fd watch events are in-sync */
901/* with the kernel/libev internal state */ 1805/* with the kernel/libev internal state */
902inline_size void 1806inline_size void
903fd_reify (EV_P) 1807fd_reify (EV_P)
904{ 1808{
905 int i; 1809 int i;
906 1810
1811#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1812 for (i = 0; i < fdchangecnt; ++i)
1813 {
1814 int fd = fdchanges [i];
1815 ANFD *anfd = anfds + fd;
1816
1817 if (anfd->reify & EV__IOFDSET && anfd->head)
1818 {
1819 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1820
1821 if (handle != anfd->handle)
1822 {
1823 unsigned long arg;
1824
1825 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1826
1827 /* handle changed, but fd didn't - we need to do it in two steps */
1828 backend_modify (EV_A_ fd, anfd->events, 0);
1829 anfd->events = 0;
1830 anfd->handle = handle;
1831 }
1832 }
1833 }
1834#endif
1835
907 for (i = 0; i < fdchangecnt; ++i) 1836 for (i = 0; i < fdchangecnt; ++i)
908 { 1837 {
909 int fd = fdchanges [i]; 1838 int fd = fdchanges [i];
910 ANFD *anfd = anfds + fd; 1839 ANFD *anfd = anfds + fd;
911 ev_io *w; 1840 ev_io *w;
912 1841
913 unsigned char events = 0; 1842 unsigned char o_events = anfd->events;
1843 unsigned char o_reify = anfd->reify;
914 1844
915 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1845 anfd->reify = 0;
916 events |= (unsigned char)w->events;
917 1846
918#if EV_SELECT_IS_WINSOCKET 1847 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
919 if (events)
920 { 1848 {
921 unsigned long arg; 1849 anfd->events = 0;
922 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1850
923 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1851 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1852 anfd->events |= (unsigned char)w->events;
1853
1854 if (o_events != anfd->events)
1855 o_reify = EV__IOFDSET; /* actually |= */
924 } 1856 }
925#endif
926 1857
927 { 1858 if (o_reify & EV__IOFDSET)
928 unsigned char o_events = anfd->events;
929 unsigned char o_reify = anfd->reify;
930
931 anfd->reify = 0;
932 anfd->events = events;
933
934 if (o_events != events || o_reify & EV__IOFDSET)
935 backend_modify (EV_A_ fd, o_events, events); 1859 backend_modify (EV_A_ fd, o_events, anfd->events);
936 }
937 } 1860 }
938 1861
939 fdchangecnt = 0; 1862 fdchangecnt = 0;
940} 1863}
941 1864
… …
953 fdchanges [fdchangecnt - 1] = fd; 1876 fdchanges [fdchangecnt - 1] = fd;
954 } 1877 }
955} 1878}
956 1879
957/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1880/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
958inline_speed void 1881inline_speed void ecb_cold
959fd_kill (EV_P_ int fd) 1882fd_kill (EV_P_ int fd)
960{ 1883{
961 ev_io *w; 1884 ev_io *w;
962 1885
963 while ((w = (ev_io *)anfds [fd].head)) 1886 while ((w = (ev_io *)anfds [fd].head))
… …
965 ev_io_stop (EV_A_ w); 1888 ev_io_stop (EV_A_ w);
966 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1889 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
967 } 1890 }
968} 1891}
969 1892
970/* check whether the given fd is atcually valid, for error recovery */ 1893/* check whether the given fd is actually valid, for error recovery */
971inline_size int 1894inline_size int ecb_cold
972fd_valid (int fd) 1895fd_valid (int fd)
973{ 1896{
974#ifdef _WIN32 1897#ifdef _WIN32
975 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1898 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
976#else 1899#else
977 return fcntl (fd, F_GETFD) != -1; 1900 return fcntl (fd, F_GETFD) != -1;
978#endif 1901#endif
979} 1902}
980 1903
981/* called on EBADF to verify fds */ 1904/* called on EBADF to verify fds */
982static void noinline 1905static void noinline ecb_cold
983fd_ebadf (EV_P) 1906fd_ebadf (EV_P)
984{ 1907{
985 int fd; 1908 int fd;
986 1909
987 for (fd = 0; fd < anfdmax; ++fd) 1910 for (fd = 0; fd < anfdmax; ++fd)
… …
989 if (!fd_valid (fd) && errno == EBADF) 1912 if (!fd_valid (fd) && errno == EBADF)
990 fd_kill (EV_A_ fd); 1913 fd_kill (EV_A_ fd);
991} 1914}
992 1915
993/* called on ENOMEM in select/poll to kill some fds and retry */ 1916/* called on ENOMEM in select/poll to kill some fds and retry */
994static void noinline 1917static void noinline ecb_cold
995fd_enomem (EV_P) 1918fd_enomem (EV_P)
996{ 1919{
997 int fd; 1920 int fd;
998 1921
999 for (fd = anfdmax; fd--; ) 1922 for (fd = anfdmax; fd--; )
… …
1017 anfds [fd].emask = 0; 1940 anfds [fd].emask = 0;
1018 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1941 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1019 } 1942 }
1020} 1943}
1021 1944
1945/* used to prepare libev internal fd's */
1946/* this is not fork-safe */
1947inline_speed void
1948fd_intern (int fd)
1949{
1950#ifdef _WIN32
1951 unsigned long arg = 1;
1952 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1953#else
1954 fcntl (fd, F_SETFD, FD_CLOEXEC);
1955 fcntl (fd, F_SETFL, O_NONBLOCK);
1956#endif
1957}
1958
1022/*****************************************************************************/ 1959/*****************************************************************************/
1023 1960
1024/* 1961/*
1025 * the heap functions want a real array index. array index 0 uis guaranteed to not 1962 * the heap functions want a real array index. array index 0 is guaranteed to not
1026 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1963 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1027 * the branching factor of the d-tree. 1964 * the branching factor of the d-tree.
1028 */ 1965 */
1029 1966
1030/* 1967/*
… …
1178 2115
1179static ANSIG signals [EV_NSIG - 1]; 2116static ANSIG signals [EV_NSIG - 1];
1180 2117
1181/*****************************************************************************/ 2118/*****************************************************************************/
1182 2119
1183/* used to prepare libev internal fd's */ 2120#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1184/* this is not fork-safe */ 2121
2122static void noinline ecb_cold
2123evpipe_init (EV_P)
2124{
2125 if (!ev_is_active (&pipe_w))
2126 {
2127 int fds [2];
2128
2129# if EV_USE_EVENTFD
2130 fds [0] = -1;
2131 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
2132 if (fds [1] < 0 && errno == EINVAL)
2133 fds [1] = eventfd (0, 0);
2134
2135 if (fds [1] < 0)
2136# endif
2137 {
2138 while (pipe (fds))
2139 ev_syserr ("(libev) error creating signal/async pipe");
2140
2141 fd_intern (fds [0]);
2142 }
2143
2144 evpipe [0] = fds [0];
2145
2146 if (evpipe [1] < 0)
2147 evpipe [1] = fds [1]; /* first call, set write fd */
2148 else
2149 {
2150 /* on subsequent calls, do not change evpipe [1] */
2151 /* so that evpipe_write can always rely on its value. */
2152 /* this branch does not do anything sensible on windows, */
2153 /* so must not be executed on windows */
2154
2155 dup2 (fds [1], evpipe [1]);
2156 close (fds [1]);
2157 }
2158
2159 fd_intern (evpipe [1]);
2160
2161 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2162 ev_io_start (EV_A_ &pipe_w);
2163 ev_unref (EV_A); /* watcher should not keep loop alive */
2164 }
2165}
2166
1185inline_speed void 2167inline_speed void
1186fd_intern (int fd) 2168evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1187{ 2169{
1188#ifdef _WIN32 2170 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1189 unsigned long arg = 1;
1190 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1191#else
1192 fcntl (fd, F_SETFD, FD_CLOEXEC);
1193 fcntl (fd, F_SETFL, O_NONBLOCK);
1194#endif
1195}
1196 2171
1197static void noinline 2172 if (expect_true (*flag))
1198evpipe_init (EV_P) 2173 return;
1199{ 2174
1200 if (!ev_is_active (&pipe_w)) 2175 *flag = 1;
2176 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2177
2178 pipe_write_skipped = 1;
2179
2180 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2181
2182 if (pipe_write_wanted)
1201 { 2183 {
2184 int old_errno;
2185
2186 pipe_write_skipped = 0;
2187 ECB_MEMORY_FENCE_RELEASE;
2188
2189 old_errno = errno; /* save errno because write will clobber it */
2190
1202#if EV_USE_EVENTFD 2191#if EV_USE_EVENTFD
1203 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2192 if (evpipe [0] < 0)
1204 if (evfd < 0 && errno == EINVAL)
1205 evfd = eventfd (0, 0);
1206
1207 if (evfd >= 0)
1208 { 2193 {
1209 evpipe [0] = -1; 2194 uint64_t counter = 1;
1210 fd_intern (evfd); /* doing it twice doesn't hurt */ 2195 write (evpipe [1], &counter, sizeof (uint64_t));
1211 ev_io_set (&pipe_w, evfd, EV_READ);
1212 } 2196 }
1213 else 2197 else
1214#endif 2198#endif
1215 { 2199 {
1216 while (pipe (evpipe)) 2200#ifdef _WIN32
1217 ev_syserr ("(libev) error creating signal/async pipe"); 2201 WSABUF buf;
1218 2202 DWORD sent;
1219 fd_intern (evpipe [0]); 2203 buf.buf = &buf;
1220 fd_intern (evpipe [1]); 2204 buf.len = 1;
1221 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2205 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2206#else
2207 write (evpipe [1], &(evpipe [1]), 1);
2208#endif
1222 } 2209 }
1223
1224 ev_io_start (EV_A_ &pipe_w);
1225 ev_unref (EV_A); /* watcher should not keep loop alive */
1226 }
1227}
1228
1229inline_size void
1230evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1231{
1232 if (!*flag)
1233 {
1234 int old_errno = errno; /* save errno because write might clobber it */
1235
1236 *flag = 1;
1237
1238#if EV_USE_EVENTFD
1239 if (evfd >= 0)
1240 {
1241 uint64_t counter = 1;
1242 write (evfd, &counter, sizeof (uint64_t));
1243 }
1244 else
1245#endif
1246 write (evpipe [1], &old_errno, 1);
1247 2210
1248 errno = old_errno; 2211 errno = old_errno;
1249 } 2212 }
1250} 2213}
1251 2214
… …
1254static void 2217static void
1255pipecb (EV_P_ ev_io *iow, int revents) 2218pipecb (EV_P_ ev_io *iow, int revents)
1256{ 2219{
1257 int i; 2220 int i;
1258 2221
2222 if (revents & EV_READ)
2223 {
1259#if EV_USE_EVENTFD 2224#if EV_USE_EVENTFD
1260 if (evfd >= 0) 2225 if (evpipe [0] < 0)
1261 { 2226 {
1262 uint64_t counter; 2227 uint64_t counter;
1263 read (evfd, &counter, sizeof (uint64_t)); 2228 read (evpipe [1], &counter, sizeof (uint64_t));
1264 } 2229 }
1265 else 2230 else
1266#endif 2231#endif
1267 { 2232 {
1268 char dummy; 2233 char dummy[4];
2234#ifdef _WIN32
2235 WSABUF buf;
2236 DWORD recvd;
2237 DWORD flags = 0;
2238 buf.buf = dummy;
2239 buf.len = sizeof (dummy);
2240 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2241#else
1269 read (evpipe [0], &dummy, 1); 2242 read (evpipe [0], &dummy, sizeof (dummy));
2243#endif
2244 }
1270 } 2245 }
1271 2246
2247 pipe_write_skipped = 0;
2248
2249 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2250
2251#if EV_SIGNAL_ENABLE
1272 if (sig_pending) 2252 if (sig_pending)
1273 { 2253 {
1274 sig_pending = 0; 2254 sig_pending = 0;
2255
2256 ECB_MEMORY_FENCE;
1275 2257
1276 for (i = EV_NSIG - 1; i--; ) 2258 for (i = EV_NSIG - 1; i--; )
1277 if (expect_false (signals [i].pending)) 2259 if (expect_false (signals [i].pending))
1278 ev_feed_signal_event (EV_A_ i + 1); 2260 ev_feed_signal_event (EV_A_ i + 1);
1279 } 2261 }
2262#endif
1280 2263
1281#if EV_ASYNC_ENABLE 2264#if EV_ASYNC_ENABLE
1282 if (async_pending) 2265 if (async_pending)
1283 { 2266 {
1284 async_pending = 0; 2267 async_pending = 0;
2268
2269 ECB_MEMORY_FENCE;
1285 2270
1286 for (i = asynccnt; i--; ) 2271 for (i = asynccnt; i--; )
1287 if (asyncs [i]->sent) 2272 if (asyncs [i]->sent)
1288 { 2273 {
1289 asyncs [i]->sent = 0; 2274 asyncs [i]->sent = 0;
2275 ECB_MEMORY_FENCE_RELEASE;
1290 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2276 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1291 } 2277 }
1292 } 2278 }
1293#endif 2279#endif
1294} 2280}
1295 2281
1296/*****************************************************************************/ 2282/*****************************************************************************/
1297 2283
2284void
2285ev_feed_signal (int signum) EV_THROW
2286{
2287#if EV_MULTIPLICITY
2288 EV_P;
2289 ECB_MEMORY_FENCE_ACQUIRE;
2290 EV_A = signals [signum - 1].loop;
2291
2292 if (!EV_A)
2293 return;
2294#endif
2295
2296 signals [signum - 1].pending = 1;
2297 evpipe_write (EV_A_ &sig_pending);
2298}
2299
1298static void 2300static void
1299ev_sighandler (int signum) 2301ev_sighandler (int signum)
1300{ 2302{
1301#if EV_MULTIPLICITY
1302 EV_P = signals [signum - 1].loop;
1303#endif
1304
1305#ifdef _WIN32 2303#ifdef _WIN32
1306 signal (signum, ev_sighandler); 2304 signal (signum, ev_sighandler);
1307#endif 2305#endif
1308 2306
1309 signals [signum - 1].pending = 1; 2307 ev_feed_signal (signum);
1310 evpipe_write (EV_A_ &sig_pending);
1311} 2308}
1312 2309
1313void noinline 2310void noinline
1314ev_feed_signal_event (EV_P_ int signum) 2311ev_feed_signal_event (EV_P_ int signum) EV_THROW
1315{ 2312{
1316 WL w; 2313 WL w;
1317 2314
1318 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2315 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1319 return; 2316 return;
1320 2317
1321 --signum; 2318 --signum;
1322 2319
1323#if EV_MULTIPLICITY 2320#if EV_MULTIPLICITY
… …
1327 if (expect_false (signals [signum].loop != EV_A)) 2324 if (expect_false (signals [signum].loop != EV_A))
1328 return; 2325 return;
1329#endif 2326#endif
1330 2327
1331 signals [signum].pending = 0; 2328 signals [signum].pending = 0;
2329 ECB_MEMORY_FENCE_RELEASE;
1332 2330
1333 for (w = signals [signum].head; w; w = w->next) 2331 for (w = signals [signum].head; w; w = w->next)
1334 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2332 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1335} 2333}
1336 2334
… …
1352 break; 2350 break;
1353 } 2351 }
1354} 2352}
1355#endif 2353#endif
1356 2354
2355#endif
2356
1357/*****************************************************************************/ 2357/*****************************************************************************/
1358 2358
2359#if EV_CHILD_ENABLE
1359static WL childs [EV_PID_HASHSIZE]; 2360static WL childs [EV_PID_HASHSIZE];
1360
1361#ifndef _WIN32
1362 2361
1363static ev_signal childev; 2362static ev_signal childev;
1364 2363
1365#ifndef WIFCONTINUED 2364#ifndef WIFCONTINUED
1366# define WIFCONTINUED(status) 0 2365# define WIFCONTINUED(status) 0
… …
1371child_reap (EV_P_ int chain, int pid, int status) 2370child_reap (EV_P_ int chain, int pid, int status)
1372{ 2371{
1373 ev_child *w; 2372 ev_child *w;
1374 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2373 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1375 2374
1376 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2375 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1377 { 2376 {
1378 if ((w->pid == pid || !w->pid) 2377 if ((w->pid == pid || !w->pid)
1379 && (!traced || (w->flags & 1))) 2378 && (!traced || (w->flags & 1)))
1380 { 2379 {
1381 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2380 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1406 /* make sure we are called again until all children have been reaped */ 2405 /* make sure we are called again until all children have been reaped */
1407 /* we need to do it this way so that the callback gets called before we continue */ 2406 /* we need to do it this way so that the callback gets called before we continue */
1408 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2407 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1409 2408
1410 child_reap (EV_A_ pid, pid, status); 2409 child_reap (EV_A_ pid, pid, status);
1411 if (EV_PID_HASHSIZE > 1) 2410 if ((EV_PID_HASHSIZE) > 1)
1412 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2411 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1413} 2412}
1414 2413
1415#endif 2414#endif
1416 2415
1417/*****************************************************************************/ 2416/*****************************************************************************/
1418 2417
2418#if EV_USE_IOCP
2419# include "ev_iocp.c"
2420#endif
1419#if EV_USE_PORT 2421#if EV_USE_PORT
1420# include "ev_port.c" 2422# include "ev_port.c"
1421#endif 2423#endif
1422#if EV_USE_KQUEUE 2424#if EV_USE_KQUEUE
1423# include "ev_kqueue.c" 2425# include "ev_kqueue.c"
… …
1430#endif 2432#endif
1431#if EV_USE_SELECT 2433#if EV_USE_SELECT
1432# include "ev_select.c" 2434# include "ev_select.c"
1433#endif 2435#endif
1434 2436
1435int 2437int ecb_cold
1436ev_version_major (void) 2438ev_version_major (void) EV_THROW
1437{ 2439{
1438 return EV_VERSION_MAJOR; 2440 return EV_VERSION_MAJOR;
1439} 2441}
1440 2442
1441int 2443int ecb_cold
1442ev_version_minor (void) 2444ev_version_minor (void) EV_THROW
1443{ 2445{
1444 return EV_VERSION_MINOR; 2446 return EV_VERSION_MINOR;
1445} 2447}
1446 2448
1447/* return true if we are running with elevated privileges and should ignore env variables */ 2449/* return true if we are running with elevated privileges and should ignore env variables */
1448int inline_size 2450int inline_size ecb_cold
1449enable_secure (void) 2451enable_secure (void)
1450{ 2452{
1451#ifdef _WIN32 2453#ifdef _WIN32
1452 return 0; 2454 return 0;
1453#else 2455#else
1454 return getuid () != geteuid () 2456 return getuid () != geteuid ()
1455 || getgid () != getegid (); 2457 || getgid () != getegid ();
1456#endif 2458#endif
1457} 2459}
1458 2460
1459unsigned int 2461unsigned int ecb_cold
1460ev_supported_backends (void) 2462ev_supported_backends (void) EV_THROW
1461{ 2463{
1462 unsigned int flags = 0; 2464 unsigned int flags = 0;
1463 2465
1464 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2466 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1465 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2467 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1468 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2470 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1469 2471
1470 return flags; 2472 return flags;
1471} 2473}
1472 2474
1473unsigned int 2475unsigned int ecb_cold
1474ev_recommended_backends (void) 2476ev_recommended_backends (void) EV_THROW
1475{ 2477{
1476 unsigned int flags = ev_supported_backends (); 2478 unsigned int flags = ev_supported_backends ();
1477 2479
1478#ifndef __NetBSD__ 2480#ifndef __NetBSD__
1479 /* kqueue is borked on everything but netbsd apparently */ 2481 /* kqueue is borked on everything but netbsd apparently */
… …
1483#ifdef __APPLE__ 2485#ifdef __APPLE__
1484 /* only select works correctly on that "unix-certified" platform */ 2486 /* only select works correctly on that "unix-certified" platform */
1485 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2487 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1486 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2488 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1487#endif 2489#endif
2490#ifdef __FreeBSD__
2491 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2492#endif
1488 2493
1489 return flags; 2494 return flags;
1490} 2495}
1491 2496
2497unsigned int ecb_cold
2498ev_embeddable_backends (void) EV_THROW
2499{
2500 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2501
2502 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2503 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2504 flags &= ~EVBACKEND_EPOLL;
2505
2506 return flags;
2507}
2508
1492unsigned int 2509unsigned int
1493ev_embeddable_backends (void) 2510ev_backend (EV_P) EV_THROW
1494{ 2511{
1495 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2512 return backend;
1496
1497 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1498 /* please fix it and tell me how to detect the fix */
1499 flags &= ~EVBACKEND_EPOLL;
1500
1501 return flags;
1502} 2513}
1503 2514
2515#if EV_FEATURE_API
1504unsigned int 2516unsigned int
1505ev_backend (EV_P) 2517ev_iteration (EV_P) EV_THROW
1506{ 2518{
1507 return backend; 2519 return loop_count;
1508} 2520}
1509 2521
1510#if EV_MINIMAL < 2
1511unsigned int 2522unsigned int
1512ev_loop_count (EV_P) 2523ev_depth (EV_P) EV_THROW
1513{
1514 return loop_count;
1515}
1516
1517unsigned int
1518ev_loop_depth (EV_P)
1519{ 2524{
1520 return loop_depth; 2525 return loop_depth;
1521} 2526}
1522 2527
1523void 2528void
1524ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2529ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1525{ 2530{
1526 io_blocktime = interval; 2531 io_blocktime = interval;
1527} 2532}
1528 2533
1529void 2534void
1530ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2535ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1531{ 2536{
1532 timeout_blocktime = interval; 2537 timeout_blocktime = interval;
1533} 2538}
1534 2539
1535void 2540void
1536ev_set_userdata (EV_P_ void *data) 2541ev_set_userdata (EV_P_ void *data) EV_THROW
1537{ 2542{
1538 userdata = data; 2543 userdata = data;
1539} 2544}
1540 2545
1541void * 2546void *
1542ev_userdata (EV_P) 2547ev_userdata (EV_P) EV_THROW
1543{ 2548{
1544 return userdata; 2549 return userdata;
1545} 2550}
1546 2551
2552void
1547void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2553ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1548{ 2554{
1549 invoke_cb = invoke_pending_cb; 2555 invoke_cb = invoke_pending_cb;
1550} 2556}
1551 2557
2558void
1552void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2559ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1553{ 2560{
1554 release_cb = release; 2561 release_cb = release;
1555 acquire_cb = acquire; 2562 acquire_cb = acquire;
1556} 2563}
1557#endif 2564#endif
1558 2565
1559/* initialise a loop structure, must be zero-initialised */ 2566/* initialise a loop structure, must be zero-initialised */
1560static void noinline 2567static void noinline ecb_cold
1561loop_init (EV_P_ unsigned int flags) 2568loop_init (EV_P_ unsigned int flags) EV_THROW
1562{ 2569{
1563 if (!backend) 2570 if (!backend)
1564 { 2571 {
2572 origflags = flags;
2573
1565#if EV_USE_REALTIME 2574#if EV_USE_REALTIME
1566 if (!have_realtime) 2575 if (!have_realtime)
1567 { 2576 {
1568 struct timespec ts; 2577 struct timespec ts;
1569 2578
… …
1591 if (!(flags & EVFLAG_NOENV) 2600 if (!(flags & EVFLAG_NOENV)
1592 && !enable_secure () 2601 && !enable_secure ()
1593 && getenv ("LIBEV_FLAGS")) 2602 && getenv ("LIBEV_FLAGS"))
1594 flags = atoi (getenv ("LIBEV_FLAGS")); 2603 flags = atoi (getenv ("LIBEV_FLAGS"));
1595 2604
1596 ev_rt_now = ev_time (); 2605 ev_rt_now = ev_time ();
1597 mn_now = get_clock (); 2606 mn_now = get_clock ();
1598 now_floor = mn_now; 2607 now_floor = mn_now;
1599 rtmn_diff = ev_rt_now - mn_now; 2608 rtmn_diff = ev_rt_now - mn_now;
1600#if EV_MINIMAL < 2 2609#if EV_FEATURE_API
1601 invoke_cb = ev_invoke_pending; 2610 invoke_cb = ev_invoke_pending;
1602#endif 2611#endif
1603 2612
1604 io_blocktime = 0.; 2613 io_blocktime = 0.;
1605 timeout_blocktime = 0.; 2614 timeout_blocktime = 0.;
1606 backend = 0; 2615 backend = 0;
1607 backend_fd = -1; 2616 backend_fd = -1;
1608 sig_pending = 0; 2617 sig_pending = 0;
1609#if EV_ASYNC_ENABLE 2618#if EV_ASYNC_ENABLE
1610 async_pending = 0; 2619 async_pending = 0;
1611#endif 2620#endif
2621 pipe_write_skipped = 0;
2622 pipe_write_wanted = 0;
2623 evpipe [0] = -1;
2624 evpipe [1] = -1;
1612#if EV_USE_INOTIFY 2625#if EV_USE_INOTIFY
1613 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2626 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1614#endif 2627#endif
1615#if EV_USE_SIGNALFD 2628#if EV_USE_SIGNALFD
1616 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2629 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1617#endif 2630#endif
1618 2631
1619 if (!(flags & 0x0000ffffU)) 2632 if (!(flags & EVBACKEND_MASK))
1620 flags |= ev_recommended_backends (); 2633 flags |= ev_recommended_backends ();
1621 2634
2635#if EV_USE_IOCP
2636 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2637#endif
1622#if EV_USE_PORT 2638#if EV_USE_PORT
1623 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2639 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1624#endif 2640#endif
1625#if EV_USE_KQUEUE 2641#if EV_USE_KQUEUE
1626 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2642 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1635 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2651 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1636#endif 2652#endif
1637 2653
1638 ev_prepare_init (&pending_w, pendingcb); 2654 ev_prepare_init (&pending_w, pendingcb);
1639 2655
2656#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1640 ev_init (&pipe_w, pipecb); 2657 ev_init (&pipe_w, pipecb);
1641 ev_set_priority (&pipe_w, EV_MAXPRI); 2658 ev_set_priority (&pipe_w, EV_MAXPRI);
2659#endif
1642 } 2660 }
1643} 2661}
1644 2662
1645/* free up a loop structure */ 2663/* free up a loop structure */
1646static void noinline 2664void ecb_cold
1647loop_destroy (EV_P) 2665ev_loop_destroy (EV_P)
1648{ 2666{
1649 int i; 2667 int i;
2668
2669#if EV_MULTIPLICITY
2670 /* mimic free (0) */
2671 if (!EV_A)
2672 return;
2673#endif
2674
2675#if EV_CLEANUP_ENABLE
2676 /* queue cleanup watchers (and execute them) */
2677 if (expect_false (cleanupcnt))
2678 {
2679 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2680 EV_INVOKE_PENDING;
2681 }
2682#endif
2683
2684#if EV_CHILD_ENABLE
2685 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2686 {
2687 ev_ref (EV_A); /* child watcher */
2688 ev_signal_stop (EV_A_ &childev);
2689 }
2690#endif
1650 2691
1651 if (ev_is_active (&pipe_w)) 2692 if (ev_is_active (&pipe_w))
1652 { 2693 {
1653 /*ev_ref (EV_A);*/ 2694 /*ev_ref (EV_A);*/
1654 /*ev_io_stop (EV_A_ &pipe_w);*/ 2695 /*ev_io_stop (EV_A_ &pipe_w);*/
1655 2696
1656#if EV_USE_EVENTFD
1657 if (evfd >= 0)
1658 close (evfd);
1659#endif
1660
1661 if (evpipe [0] >= 0)
1662 {
1663 EV_WIN32_CLOSE_FD (evpipe [0]); 2697 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1664 EV_WIN32_CLOSE_FD (evpipe [1]); 2698 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1665 }
1666 } 2699 }
1667 2700
1668#if EV_USE_SIGNALFD 2701#if EV_USE_SIGNALFD
1669 if (ev_is_active (&sigfd_w)) 2702 if (ev_is_active (&sigfd_w))
1670 close (sigfd); 2703 close (sigfd);
… …
1676#endif 2709#endif
1677 2710
1678 if (backend_fd >= 0) 2711 if (backend_fd >= 0)
1679 close (backend_fd); 2712 close (backend_fd);
1680 2713
2714#if EV_USE_IOCP
2715 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2716#endif
1681#if EV_USE_PORT 2717#if EV_USE_PORT
1682 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2718 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1683#endif 2719#endif
1684#if EV_USE_KQUEUE 2720#if EV_USE_KQUEUE
1685 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2721 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1712 array_free (periodic, EMPTY); 2748 array_free (periodic, EMPTY);
1713#endif 2749#endif
1714#if EV_FORK_ENABLE 2750#if EV_FORK_ENABLE
1715 array_free (fork, EMPTY); 2751 array_free (fork, EMPTY);
1716#endif 2752#endif
2753#if EV_CLEANUP_ENABLE
2754 array_free (cleanup, EMPTY);
2755#endif
1717 array_free (prepare, EMPTY); 2756 array_free (prepare, EMPTY);
1718 array_free (check, EMPTY); 2757 array_free (check, EMPTY);
1719#if EV_ASYNC_ENABLE 2758#if EV_ASYNC_ENABLE
1720 array_free (async, EMPTY); 2759 array_free (async, EMPTY);
1721#endif 2760#endif
1722 2761
1723 backend = 0; 2762 backend = 0;
2763
2764#if EV_MULTIPLICITY
2765 if (ev_is_default_loop (EV_A))
2766#endif
2767 ev_default_loop_ptr = 0;
2768#if EV_MULTIPLICITY
2769 else
2770 ev_free (EV_A);
2771#endif
1724} 2772}
1725 2773
1726#if EV_USE_INOTIFY 2774#if EV_USE_INOTIFY
1727inline_size void infy_fork (EV_P); 2775inline_size void infy_fork (EV_P);
1728#endif 2776#endif
… …
1741#endif 2789#endif
1742#if EV_USE_INOTIFY 2790#if EV_USE_INOTIFY
1743 infy_fork (EV_A); 2791 infy_fork (EV_A);
1744#endif 2792#endif
1745 2793
2794#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1746 if (ev_is_active (&pipe_w)) 2795 if (ev_is_active (&pipe_w))
1747 { 2796 {
1748 /* this "locks" the handlers against writing to the pipe */ 2797 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1749 /* while we modify the fd vars */
1750 sig_pending = 1;
1751#if EV_ASYNC_ENABLE
1752 async_pending = 1;
1753#endif
1754 2798
1755 ev_ref (EV_A); 2799 ev_ref (EV_A);
1756 ev_io_stop (EV_A_ &pipe_w); 2800 ev_io_stop (EV_A_ &pipe_w);
1757 2801
1758#if EV_USE_EVENTFD
1759 if (evfd >= 0)
1760 close (evfd);
1761#endif
1762
1763 if (evpipe [0] >= 0) 2802 if (evpipe [0] >= 0)
1764 {
1765 EV_WIN32_CLOSE_FD (evpipe [0]); 2803 EV_WIN32_CLOSE_FD (evpipe [0]);
1766 EV_WIN32_CLOSE_FD (evpipe [1]);
1767 }
1768 2804
1769 evpipe_init (EV_A); 2805 evpipe_init (EV_A);
1770 /* now iterate over everything, in case we missed something */ 2806 /* iterate over everything, in case we missed something before */
1771 pipecb (EV_A_ &pipe_w, EV_READ); 2807 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1772 } 2808 }
2809#endif
1773 2810
1774 postfork = 0; 2811 postfork = 0;
1775} 2812}
1776 2813
1777#if EV_MULTIPLICITY 2814#if EV_MULTIPLICITY
1778 2815
1779struct ev_loop * 2816struct ev_loop * ecb_cold
1780ev_loop_new (unsigned int flags) 2817ev_loop_new (unsigned int flags) EV_THROW
1781{ 2818{
1782 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2819 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1783 2820
1784 memset (EV_A, 0, sizeof (struct ev_loop)); 2821 memset (EV_A, 0, sizeof (struct ev_loop));
1785 loop_init (EV_A_ flags); 2822 loop_init (EV_A_ flags);
1786 2823
1787 if (ev_backend (EV_A)) 2824 if (ev_backend (EV_A))
1788 return EV_A; 2825 return EV_A;
1789 2826
2827 ev_free (EV_A);
1790 return 0; 2828 return 0;
1791} 2829}
1792 2830
1793void
1794ev_loop_destroy (EV_P)
1795{
1796 loop_destroy (EV_A);
1797 ev_free (loop);
1798}
1799
1800void
1801ev_loop_fork (EV_P)
1802{
1803 postfork = 1; /* must be in line with ev_default_fork */
1804}
1805#endif /* multiplicity */ 2831#endif /* multiplicity */
1806 2832
1807#if EV_VERIFY 2833#if EV_VERIFY
1808static void noinline 2834static void noinline ecb_cold
1809verify_watcher (EV_P_ W w) 2835verify_watcher (EV_P_ W w)
1810{ 2836{
1811 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2837 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1812 2838
1813 if (w->pending) 2839 if (w->pending)
1814 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2840 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1815} 2841}
1816 2842
1817static void noinline 2843static void noinline ecb_cold
1818verify_heap (EV_P_ ANHE *heap, int N) 2844verify_heap (EV_P_ ANHE *heap, int N)
1819{ 2845{
1820 int i; 2846 int i;
1821 2847
1822 for (i = HEAP0; i < N + HEAP0; ++i) 2848 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1827 2853
1828 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2854 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1829 } 2855 }
1830} 2856}
1831 2857
1832static void noinline 2858static void noinline ecb_cold
1833array_verify (EV_P_ W *ws, int cnt) 2859array_verify (EV_P_ W *ws, int cnt)
1834{ 2860{
1835 while (cnt--) 2861 while (cnt--)
1836 { 2862 {
1837 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2863 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1838 verify_watcher (EV_A_ ws [cnt]); 2864 verify_watcher (EV_A_ ws [cnt]);
1839 } 2865 }
1840} 2866}
1841#endif 2867#endif
1842 2868
1843#if EV_MINIMAL < 2 2869#if EV_FEATURE_API
1844void 2870void ecb_cold
1845ev_loop_verify (EV_P) 2871ev_verify (EV_P) EV_THROW
1846{ 2872{
1847#if EV_VERIFY 2873#if EV_VERIFY
1848 int i; 2874 int i;
1849 WL w; 2875 WL w, w2;
1850 2876
1851 assert (activecnt >= -1); 2877 assert (activecnt >= -1);
1852 2878
1853 assert (fdchangemax >= fdchangecnt); 2879 assert (fdchangemax >= fdchangecnt);
1854 for (i = 0; i < fdchangecnt; ++i) 2880 for (i = 0; i < fdchangecnt; ++i)
1855 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2881 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1856 2882
1857 assert (anfdmax >= 0); 2883 assert (anfdmax >= 0);
1858 for (i = 0; i < anfdmax; ++i) 2884 for (i = 0; i < anfdmax; ++i)
2885 {
2886 int j = 0;
2887
1859 for (w = anfds [i].head; w; w = w->next) 2888 for (w = w2 = anfds [i].head; w; w = w->next)
1860 { 2889 {
1861 verify_watcher (EV_A_ (W)w); 2890 verify_watcher (EV_A_ (W)w);
2891
2892 if (j++ & 1)
2893 {
2894 assert (("libev: io watcher list contains a loop", w != w2));
2895 w2 = w2->next;
2896 }
2897
1862 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2898 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1863 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2899 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1864 } 2900 }
2901 }
1865 2902
1866 assert (timermax >= timercnt); 2903 assert (timermax >= timercnt);
1867 verify_heap (EV_A_ timers, timercnt); 2904 verify_heap (EV_A_ timers, timercnt);
1868 2905
1869#if EV_PERIODIC_ENABLE 2906#if EV_PERIODIC_ENABLE
… …
1884#if EV_FORK_ENABLE 2921#if EV_FORK_ENABLE
1885 assert (forkmax >= forkcnt); 2922 assert (forkmax >= forkcnt);
1886 array_verify (EV_A_ (W *)forks, forkcnt); 2923 array_verify (EV_A_ (W *)forks, forkcnt);
1887#endif 2924#endif
1888 2925
2926#if EV_CLEANUP_ENABLE
2927 assert (cleanupmax >= cleanupcnt);
2928 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2929#endif
2930
1889#if EV_ASYNC_ENABLE 2931#if EV_ASYNC_ENABLE
1890 assert (asyncmax >= asynccnt); 2932 assert (asyncmax >= asynccnt);
1891 array_verify (EV_A_ (W *)asyncs, asynccnt); 2933 array_verify (EV_A_ (W *)asyncs, asynccnt);
1892#endif 2934#endif
1893 2935
2936#if EV_PREPARE_ENABLE
1894 assert (preparemax >= preparecnt); 2937 assert (preparemax >= preparecnt);
1895 array_verify (EV_A_ (W *)prepares, preparecnt); 2938 array_verify (EV_A_ (W *)prepares, preparecnt);
2939#endif
1896 2940
2941#if EV_CHECK_ENABLE
1897 assert (checkmax >= checkcnt); 2942 assert (checkmax >= checkcnt);
1898 array_verify (EV_A_ (W *)checks, checkcnt); 2943 array_verify (EV_A_ (W *)checks, checkcnt);
2944#endif
1899 2945
1900# if 0 2946# if 0
2947#if EV_CHILD_ENABLE
1901 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2948 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1902 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2949 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2950#endif
1903# endif 2951# endif
1904#endif 2952#endif
1905} 2953}
1906#endif 2954#endif
1907 2955
1908#if EV_MULTIPLICITY 2956#if EV_MULTIPLICITY
1909struct ev_loop * 2957struct ev_loop * ecb_cold
1910ev_default_loop_init (unsigned int flags)
1911#else 2958#else
1912int 2959int
2960#endif
1913ev_default_loop (unsigned int flags) 2961ev_default_loop (unsigned int flags) EV_THROW
1914#endif
1915{ 2962{
1916 if (!ev_default_loop_ptr) 2963 if (!ev_default_loop_ptr)
1917 { 2964 {
1918#if EV_MULTIPLICITY 2965#if EV_MULTIPLICITY
1919 EV_P = ev_default_loop_ptr = &default_loop_struct; 2966 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1923 2970
1924 loop_init (EV_A_ flags); 2971 loop_init (EV_A_ flags);
1925 2972
1926 if (ev_backend (EV_A)) 2973 if (ev_backend (EV_A))
1927 { 2974 {
1928#ifndef _WIN32 2975#if EV_CHILD_ENABLE
1929 ev_signal_init (&childev, childcb, SIGCHLD); 2976 ev_signal_init (&childev, childcb, SIGCHLD);
1930 ev_set_priority (&childev, EV_MAXPRI); 2977 ev_set_priority (&childev, EV_MAXPRI);
1931 ev_signal_start (EV_A_ &childev); 2978 ev_signal_start (EV_A_ &childev);
1932 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2979 ev_unref (EV_A); /* child watcher should not keep loop alive */
1933#endif 2980#endif
… …
1938 2985
1939 return ev_default_loop_ptr; 2986 return ev_default_loop_ptr;
1940} 2987}
1941 2988
1942void 2989void
1943ev_default_destroy (void) 2990ev_loop_fork (EV_P) EV_THROW
1944{ 2991{
1945#if EV_MULTIPLICITY 2992 postfork = 1;
1946 EV_P = ev_default_loop_ptr;
1947#endif
1948
1949 ev_default_loop_ptr = 0;
1950
1951#ifndef _WIN32
1952 ev_ref (EV_A); /* child watcher */
1953 ev_signal_stop (EV_A_ &childev);
1954#endif
1955
1956 loop_destroy (EV_A);
1957}
1958
1959void
1960ev_default_fork (void)
1961{
1962#if EV_MULTIPLICITY
1963 EV_P = ev_default_loop_ptr;
1964#endif
1965
1966 postfork = 1; /* must be in line with ev_loop_fork */
1967} 2993}
1968 2994
1969/*****************************************************************************/ 2995/*****************************************************************************/
1970 2996
1971void 2997void
… …
1973{ 2999{
1974 EV_CB_INVOKE ((W)w, revents); 3000 EV_CB_INVOKE ((W)w, revents);
1975} 3001}
1976 3002
1977unsigned int 3003unsigned int
1978ev_pending_count (EV_P) 3004ev_pending_count (EV_P) EV_THROW
1979{ 3005{
1980 int pri; 3006 int pri;
1981 unsigned int count = 0; 3007 unsigned int count = 0;
1982 3008
1983 for (pri = NUMPRI; pri--; ) 3009 for (pri = NUMPRI; pri--; )
… …
1987} 3013}
1988 3014
1989void noinline 3015void noinline
1990ev_invoke_pending (EV_P) 3016ev_invoke_pending (EV_P)
1991{ 3017{
1992 int pri; 3018 pendingpri = NUMPRI;
1993 3019
1994 for (pri = NUMPRI; pri--; ) 3020 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3021 {
3022 --pendingpri;
3023
1995 while (pendingcnt [pri]) 3024 while (pendingcnt [pendingpri])
1996 { 3025 {
1997 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3026 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1998 3027
1999 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2000 /* ^ this is no longer true, as pending_w could be here */
2001
2002 p->w->pending = 0; 3028 p->w->pending = 0;
2003 EV_CB_INVOKE (p->w, p->events); 3029 EV_CB_INVOKE (p->w, p->events);
2004 EV_FREQUENT_CHECK; 3030 EV_FREQUENT_CHECK;
2005 } 3031 }
3032 }
2006} 3033}
2007 3034
2008#if EV_IDLE_ENABLE 3035#if EV_IDLE_ENABLE
2009/* make idle watchers pending. this handles the "call-idle */ 3036/* make idle watchers pending. this handles the "call-idle */
2010/* only when higher priorities are idle" logic */ 3037/* only when higher priorities are idle" logic */
… …
2062 EV_FREQUENT_CHECK; 3089 EV_FREQUENT_CHECK;
2063 feed_reverse (EV_A_ (W)w); 3090 feed_reverse (EV_A_ (W)w);
2064 } 3091 }
2065 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 3092 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2066 3093
2067 feed_reverse_done (EV_A_ EV_TIMEOUT); 3094 feed_reverse_done (EV_A_ EV_TIMER);
2068 } 3095 }
2069} 3096}
2070 3097
2071#if EV_PERIODIC_ENABLE 3098#if EV_PERIODIC_ENABLE
3099
3100static void noinline
3101periodic_recalc (EV_P_ ev_periodic *w)
3102{
3103 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3104 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3105
3106 /* the above almost always errs on the low side */
3107 while (at <= ev_rt_now)
3108 {
3109 ev_tstamp nat = at + w->interval;
3110
3111 /* when resolution fails us, we use ev_rt_now */
3112 if (expect_false (nat == at))
3113 {
3114 at = ev_rt_now;
3115 break;
3116 }
3117
3118 at = nat;
3119 }
3120
3121 ev_at (w) = at;
3122}
3123
2072/* make periodics pending */ 3124/* make periodics pending */
2073inline_size void 3125inline_size void
2074periodics_reify (EV_P) 3126periodics_reify (EV_P)
2075{ 3127{
2076 EV_FREQUENT_CHECK; 3128 EV_FREQUENT_CHECK;
2077 3129
2078 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3130 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2079 { 3131 {
2080 int feed_count = 0;
2081
2082 do 3132 do
2083 { 3133 {
2084 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3134 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2085 3135
2086 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3136 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2095 ANHE_at_cache (periodics [HEAP0]); 3145 ANHE_at_cache (periodics [HEAP0]);
2096 downheap (periodics, periodiccnt, HEAP0); 3146 downheap (periodics, periodiccnt, HEAP0);
2097 } 3147 }
2098 else if (w->interval) 3148 else if (w->interval)
2099 { 3149 {
2100 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3150 periodic_recalc (EV_A_ w);
2101 /* if next trigger time is not sufficiently in the future, put it there */
2102 /* this might happen because of floating point inexactness */
2103 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2104 {
2105 ev_at (w) += w->interval;
2106
2107 /* if interval is unreasonably low we might still have a time in the past */
2108 /* so correct this. this will make the periodic very inexact, but the user */
2109 /* has effectively asked to get triggered more often than possible */
2110 if (ev_at (w) < ev_rt_now)
2111 ev_at (w) = ev_rt_now;
2112 }
2113
2114 ANHE_at_cache (periodics [HEAP0]); 3151 ANHE_at_cache (periodics [HEAP0]);
2115 downheap (periodics, periodiccnt, HEAP0); 3152 downheap (periodics, periodiccnt, HEAP0);
2116 } 3153 }
2117 else 3154 else
2118 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3155 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2125 feed_reverse_done (EV_A_ EV_PERIODIC); 3162 feed_reverse_done (EV_A_ EV_PERIODIC);
2126 } 3163 }
2127} 3164}
2128 3165
2129/* simply recalculate all periodics */ 3166/* simply recalculate all periodics */
2130/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 3167/* TODO: maybe ensure that at least one event happens when jumping forward? */
2131static void noinline 3168static void noinline ecb_cold
2132periodics_reschedule (EV_P) 3169periodics_reschedule (EV_P)
2133{ 3170{
2134 int i; 3171 int i;
2135 3172
2136 /* adjust periodics after time jump */ 3173 /* adjust periodics after time jump */
… …
2139 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3176 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2140 3177
2141 if (w->reschedule_cb) 3178 if (w->reschedule_cb)
2142 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3179 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2143 else if (w->interval) 3180 else if (w->interval)
2144 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3181 periodic_recalc (EV_A_ w);
2145 3182
2146 ANHE_at_cache (periodics [i]); 3183 ANHE_at_cache (periodics [i]);
2147 } 3184 }
2148 3185
2149 reheap (periodics, periodiccnt); 3186 reheap (periodics, periodiccnt);
2150} 3187}
2151#endif 3188#endif
2152 3189
2153/* adjust all timers by a given offset */ 3190/* adjust all timers by a given offset */
2154static void noinline 3191static void noinline ecb_cold
2155timers_reschedule (EV_P_ ev_tstamp adjust) 3192timers_reschedule (EV_P_ ev_tstamp adjust)
2156{ 3193{
2157 int i; 3194 int i;
2158 3195
2159 for (i = 0; i < timercnt; ++i) 3196 for (i = 0; i < timercnt; ++i)
… …
2196 * doesn't hurt either as we only do this on time-jumps or 3233 * doesn't hurt either as we only do this on time-jumps or
2197 * in the unlikely event of having been preempted here. 3234 * in the unlikely event of having been preempted here.
2198 */ 3235 */
2199 for (i = 4; --i; ) 3236 for (i = 4; --i; )
2200 { 3237 {
3238 ev_tstamp diff;
2201 rtmn_diff = ev_rt_now - mn_now; 3239 rtmn_diff = ev_rt_now - mn_now;
2202 3240
3241 diff = odiff - rtmn_diff;
3242
2203 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3243 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2204 return; /* all is well */ 3244 return; /* all is well */
2205 3245
2206 ev_rt_now = ev_time (); 3246 ev_rt_now = ev_time ();
2207 mn_now = get_clock (); 3247 mn_now = get_clock ();
2208 now_floor = mn_now; 3248 now_floor = mn_now;
… …
2230 3270
2231 mn_now = ev_rt_now; 3271 mn_now = ev_rt_now;
2232 } 3272 }
2233} 3273}
2234 3274
2235void 3275int
2236ev_loop (EV_P_ int flags) 3276ev_run (EV_P_ int flags)
2237{ 3277{
2238#if EV_MINIMAL < 2 3278#if EV_FEATURE_API
2239 ++loop_depth; 3279 ++loop_depth;
2240#endif 3280#endif
2241 3281
2242 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3282 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2243 3283
2244 loop_done = EVUNLOOP_CANCEL; 3284 loop_done = EVBREAK_CANCEL;
2245 3285
2246 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3286 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2247 3287
2248 do 3288 do
2249 { 3289 {
2250#if EV_VERIFY >= 2 3290#if EV_VERIFY >= 2
2251 ev_loop_verify (EV_A); 3291 ev_verify (EV_A);
2252#endif 3292#endif
2253 3293
2254#ifndef _WIN32 3294#ifndef _WIN32
2255 if (expect_false (curpid)) /* penalise the forking check even more */ 3295 if (expect_false (curpid)) /* penalise the forking check even more */
2256 if (expect_false (getpid () != curpid)) 3296 if (expect_false (getpid () != curpid))
… …
2268 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3308 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2269 EV_INVOKE_PENDING; 3309 EV_INVOKE_PENDING;
2270 } 3310 }
2271#endif 3311#endif
2272 3312
3313#if EV_PREPARE_ENABLE
2273 /* queue prepare watchers (and execute them) */ 3314 /* queue prepare watchers (and execute them) */
2274 if (expect_false (preparecnt)) 3315 if (expect_false (preparecnt))
2275 { 3316 {
2276 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3317 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2277 EV_INVOKE_PENDING; 3318 EV_INVOKE_PENDING;
2278 } 3319 }
3320#endif
2279 3321
2280 if (expect_false (loop_done)) 3322 if (expect_false (loop_done))
2281 break; 3323 break;
2282 3324
2283 /* we might have forked, so reify kernel state if necessary */ 3325 /* we might have forked, so reify kernel state if necessary */
… …
2290 /* calculate blocking time */ 3332 /* calculate blocking time */
2291 { 3333 {
2292 ev_tstamp waittime = 0.; 3334 ev_tstamp waittime = 0.;
2293 ev_tstamp sleeptime = 0.; 3335 ev_tstamp sleeptime = 0.;
2294 3336
3337 /* remember old timestamp for io_blocktime calculation */
3338 ev_tstamp prev_mn_now = mn_now;
3339
3340 /* update time to cancel out callback processing overhead */
3341 time_update (EV_A_ 1e100);
3342
3343 /* from now on, we want a pipe-wake-up */
3344 pipe_write_wanted = 1;
3345
3346 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3347
2295 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3348 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2296 { 3349 {
2297 /* remember old timestamp for io_blocktime calculation */
2298 ev_tstamp prev_mn_now = mn_now;
2299
2300 /* update time to cancel out callback processing overhead */
2301 time_update (EV_A_ 1e100);
2302
2303 waittime = MAX_BLOCKTIME; 3350 waittime = MAX_BLOCKTIME;
2304 3351
2305 if (timercnt) 3352 if (timercnt)
2306 { 3353 {
2307 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3354 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2308 if (waittime > to) waittime = to; 3355 if (waittime > to) waittime = to;
2309 } 3356 }
2310 3357
2311#if EV_PERIODIC_ENABLE 3358#if EV_PERIODIC_ENABLE
2312 if (periodiccnt) 3359 if (periodiccnt)
2313 { 3360 {
2314 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3361 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2315 if (waittime > to) waittime = to; 3362 if (waittime > to) waittime = to;
2316 } 3363 }
2317#endif 3364#endif
2318 3365
2319 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3366 /* don't let timeouts decrease the waittime below timeout_blocktime */
2320 if (expect_false (waittime < timeout_blocktime)) 3367 if (expect_false (waittime < timeout_blocktime))
2321 waittime = timeout_blocktime; 3368 waittime = timeout_blocktime;
3369
3370 /* at this point, we NEED to wait, so we have to ensure */
3371 /* to pass a minimum nonzero value to the backend */
3372 if (expect_false (waittime < backend_mintime))
3373 waittime = backend_mintime;
2322 3374
2323 /* extra check because io_blocktime is commonly 0 */ 3375 /* extra check because io_blocktime is commonly 0 */
2324 if (expect_false (io_blocktime)) 3376 if (expect_false (io_blocktime))
2325 { 3377 {
2326 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3378 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2327 3379
2328 if (sleeptime > waittime - backend_fudge) 3380 if (sleeptime > waittime - backend_mintime)
2329 sleeptime = waittime - backend_fudge; 3381 sleeptime = waittime - backend_mintime;
2330 3382
2331 if (expect_true (sleeptime > 0.)) 3383 if (expect_true (sleeptime > 0.))
2332 { 3384 {
2333 ev_sleep (sleeptime); 3385 ev_sleep (sleeptime);
2334 waittime -= sleeptime; 3386 waittime -= sleeptime;
2335 } 3387 }
2336 } 3388 }
2337 } 3389 }
2338 3390
2339#if EV_MINIMAL < 2 3391#if EV_FEATURE_API
2340 ++loop_count; 3392 ++loop_count;
2341#endif 3393#endif
2342 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3394 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2343 backend_poll (EV_A_ waittime); 3395 backend_poll (EV_A_ waittime);
2344 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3396 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3397
3398 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3399
3400 ECB_MEMORY_FENCE_ACQUIRE;
3401 if (pipe_write_skipped)
3402 {
3403 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3404 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3405 }
3406
2345 3407
2346 /* update ev_rt_now, do magic */ 3408 /* update ev_rt_now, do magic */
2347 time_update (EV_A_ waittime + sleeptime); 3409 time_update (EV_A_ waittime + sleeptime);
2348 } 3410 }
2349 3411
… …
2356#if EV_IDLE_ENABLE 3418#if EV_IDLE_ENABLE
2357 /* queue idle watchers unless other events are pending */ 3419 /* queue idle watchers unless other events are pending */
2358 idle_reify (EV_A); 3420 idle_reify (EV_A);
2359#endif 3421#endif
2360 3422
3423#if EV_CHECK_ENABLE
2361 /* queue check watchers, to be executed first */ 3424 /* queue check watchers, to be executed first */
2362 if (expect_false (checkcnt)) 3425 if (expect_false (checkcnt))
2363 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3426 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3427#endif
2364 3428
2365 EV_INVOKE_PENDING; 3429 EV_INVOKE_PENDING;
2366 } 3430 }
2367 while (expect_true ( 3431 while (expect_true (
2368 activecnt 3432 activecnt
2369 && !loop_done 3433 && !loop_done
2370 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3434 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2371 )); 3435 ));
2372 3436
2373 if (loop_done == EVUNLOOP_ONE) 3437 if (loop_done == EVBREAK_ONE)
2374 loop_done = EVUNLOOP_CANCEL; 3438 loop_done = EVBREAK_CANCEL;
2375 3439
2376#if EV_MINIMAL < 2 3440#if EV_FEATURE_API
2377 --loop_depth; 3441 --loop_depth;
2378#endif 3442#endif
3443
3444 return activecnt;
2379} 3445}
2380 3446
2381void 3447void
2382ev_unloop (EV_P_ int how) 3448ev_break (EV_P_ int how) EV_THROW
2383{ 3449{
2384 loop_done = how; 3450 loop_done = how;
2385} 3451}
2386 3452
2387void 3453void
2388ev_ref (EV_P) 3454ev_ref (EV_P) EV_THROW
2389{ 3455{
2390 ++activecnt; 3456 ++activecnt;
2391} 3457}
2392 3458
2393void 3459void
2394ev_unref (EV_P) 3460ev_unref (EV_P) EV_THROW
2395{ 3461{
2396 --activecnt; 3462 --activecnt;
2397} 3463}
2398 3464
2399void 3465void
2400ev_now_update (EV_P) 3466ev_now_update (EV_P) EV_THROW
2401{ 3467{
2402 time_update (EV_A_ 1e100); 3468 time_update (EV_A_ 1e100);
2403} 3469}
2404 3470
2405void 3471void
2406ev_suspend (EV_P) 3472ev_suspend (EV_P) EV_THROW
2407{ 3473{
2408 ev_now_update (EV_A); 3474 ev_now_update (EV_A);
2409} 3475}
2410 3476
2411void 3477void
2412ev_resume (EV_P) 3478ev_resume (EV_P) EV_THROW
2413{ 3479{
2414 ev_tstamp mn_prev = mn_now; 3480 ev_tstamp mn_prev = mn_now;
2415 3481
2416 ev_now_update (EV_A); 3482 ev_now_update (EV_A);
2417 timers_reschedule (EV_A_ mn_now - mn_prev); 3483 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2456 w->pending = 0; 3522 w->pending = 0;
2457 } 3523 }
2458} 3524}
2459 3525
2460int 3526int
2461ev_clear_pending (EV_P_ void *w) 3527ev_clear_pending (EV_P_ void *w) EV_THROW
2462{ 3528{
2463 W w_ = (W)w; 3529 W w_ = (W)w;
2464 int pending = w_->pending; 3530 int pending = w_->pending;
2465 3531
2466 if (expect_true (pending)) 3532 if (expect_true (pending))
… …
2499} 3565}
2500 3566
2501/*****************************************************************************/ 3567/*****************************************************************************/
2502 3568
2503void noinline 3569void noinline
2504ev_io_start (EV_P_ ev_io *w) 3570ev_io_start (EV_P_ ev_io *w) EV_THROW
2505{ 3571{
2506 int fd = w->fd; 3572 int fd = w->fd;
2507 3573
2508 if (expect_false (ev_is_active (w))) 3574 if (expect_false (ev_is_active (w)))
2509 return; 3575 return;
2510 3576
2511 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3577 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2512 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3578 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2513 3579
2514 EV_FREQUENT_CHECK; 3580 EV_FREQUENT_CHECK;
2515 3581
2516 ev_start (EV_A_ (W)w, 1); 3582 ev_start (EV_A_ (W)w, 1);
2517 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3583 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2518 wlist_add (&anfds[fd].head, (WL)w); 3584 wlist_add (&anfds[fd].head, (WL)w);
2519 3585
3586 /* common bug, apparently */
3587 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3588
2520 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3589 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2521 w->events &= ~EV__IOFDSET; 3590 w->events &= ~EV__IOFDSET;
2522 3591
2523 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
2524} 3593}
2525 3594
2526void noinline 3595void noinline
2527ev_io_stop (EV_P_ ev_io *w) 3596ev_io_stop (EV_P_ ev_io *w) EV_THROW
2528{ 3597{
2529 clear_pending (EV_A_ (W)w); 3598 clear_pending (EV_A_ (W)w);
2530 if (expect_false (!ev_is_active (w))) 3599 if (expect_false (!ev_is_active (w)))
2531 return; 3600 return;
2532 3601
… …
2535 EV_FREQUENT_CHECK; 3604 EV_FREQUENT_CHECK;
2536 3605
2537 wlist_del (&anfds[w->fd].head, (WL)w); 3606 wlist_del (&anfds[w->fd].head, (WL)w);
2538 ev_stop (EV_A_ (W)w); 3607 ev_stop (EV_A_ (W)w);
2539 3608
2540 fd_change (EV_A_ w->fd, 1); 3609 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2541 3610
2542 EV_FREQUENT_CHECK; 3611 EV_FREQUENT_CHECK;
2543} 3612}
2544 3613
2545void noinline 3614void noinline
2546ev_timer_start (EV_P_ ev_timer *w) 3615ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2547{ 3616{
2548 if (expect_false (ev_is_active (w))) 3617 if (expect_false (ev_is_active (w)))
2549 return; 3618 return;
2550 3619
2551 ev_at (w) += mn_now; 3620 ev_at (w) += mn_now;
… …
2565 3634
2566 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3635 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2567} 3636}
2568 3637
2569void noinline 3638void noinline
2570ev_timer_stop (EV_P_ ev_timer *w) 3639ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2571{ 3640{
2572 clear_pending (EV_A_ (W)w); 3641 clear_pending (EV_A_ (W)w);
2573 if (expect_false (!ev_is_active (w))) 3642 if (expect_false (!ev_is_active (w)))
2574 return; 3643 return;
2575 3644
… …
2587 timers [active] = timers [timercnt + HEAP0]; 3656 timers [active] = timers [timercnt + HEAP0];
2588 adjustheap (timers, timercnt, active); 3657 adjustheap (timers, timercnt, active);
2589 } 3658 }
2590 } 3659 }
2591 3660
2592 EV_FREQUENT_CHECK;
2593
2594 ev_at (w) -= mn_now; 3661 ev_at (w) -= mn_now;
2595 3662
2596 ev_stop (EV_A_ (W)w); 3663 ev_stop (EV_A_ (W)w);
3664
3665 EV_FREQUENT_CHECK;
2597} 3666}
2598 3667
2599void noinline 3668void noinline
2600ev_timer_again (EV_P_ ev_timer *w) 3669ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2601{ 3670{
2602 EV_FREQUENT_CHECK; 3671 EV_FREQUENT_CHECK;
3672
3673 clear_pending (EV_A_ (W)w);
2603 3674
2604 if (ev_is_active (w)) 3675 if (ev_is_active (w))
2605 { 3676 {
2606 if (w->repeat) 3677 if (w->repeat)
2607 { 3678 {
… …
2620 3691
2621 EV_FREQUENT_CHECK; 3692 EV_FREQUENT_CHECK;
2622} 3693}
2623 3694
2624ev_tstamp 3695ev_tstamp
2625ev_timer_remaining (EV_P_ ev_timer *w) 3696ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2626{ 3697{
2627 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3698 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2628} 3699}
2629 3700
2630#if EV_PERIODIC_ENABLE 3701#if EV_PERIODIC_ENABLE
2631void noinline 3702void noinline
2632ev_periodic_start (EV_P_ ev_periodic *w) 3703ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2633{ 3704{
2634 if (expect_false (ev_is_active (w))) 3705 if (expect_false (ev_is_active (w)))
2635 return; 3706 return;
2636 3707
2637 if (w->reschedule_cb) 3708 if (w->reschedule_cb)
2638 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3709 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2639 else if (w->interval) 3710 else if (w->interval)
2640 { 3711 {
2641 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3712 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2642 /* this formula differs from the one in periodic_reify because we do not always round up */ 3713 periodic_recalc (EV_A_ w);
2643 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2644 } 3714 }
2645 else 3715 else
2646 ev_at (w) = w->offset; 3716 ev_at (w) = w->offset;
2647 3717
2648 EV_FREQUENT_CHECK; 3718 EV_FREQUENT_CHECK;
… …
2658 3728
2659 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3729 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2660} 3730}
2661 3731
2662void noinline 3732void noinline
2663ev_periodic_stop (EV_P_ ev_periodic *w) 3733ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2664{ 3734{
2665 clear_pending (EV_A_ (W)w); 3735 clear_pending (EV_A_ (W)w);
2666 if (expect_false (!ev_is_active (w))) 3736 if (expect_false (!ev_is_active (w)))
2667 return; 3737 return;
2668 3738
… …
2680 periodics [active] = periodics [periodiccnt + HEAP0]; 3750 periodics [active] = periodics [periodiccnt + HEAP0];
2681 adjustheap (periodics, periodiccnt, active); 3751 adjustheap (periodics, periodiccnt, active);
2682 } 3752 }
2683 } 3753 }
2684 3754
2685 EV_FREQUENT_CHECK;
2686
2687 ev_stop (EV_A_ (W)w); 3755 ev_stop (EV_A_ (W)w);
3756
3757 EV_FREQUENT_CHECK;
2688} 3758}
2689 3759
2690void noinline 3760void noinline
2691ev_periodic_again (EV_P_ ev_periodic *w) 3761ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2692{ 3762{
2693 /* TODO: use adjustheap and recalculation */ 3763 /* TODO: use adjustheap and recalculation */
2694 ev_periodic_stop (EV_A_ w); 3764 ev_periodic_stop (EV_A_ w);
2695 ev_periodic_start (EV_A_ w); 3765 ev_periodic_start (EV_A_ w);
2696} 3766}
… …
2698 3768
2699#ifndef SA_RESTART 3769#ifndef SA_RESTART
2700# define SA_RESTART 0 3770# define SA_RESTART 0
2701#endif 3771#endif
2702 3772
3773#if EV_SIGNAL_ENABLE
3774
2703void noinline 3775void noinline
2704ev_signal_start (EV_P_ ev_signal *w) 3776ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2705{ 3777{
2706 if (expect_false (ev_is_active (w))) 3778 if (expect_false (ev_is_active (w)))
2707 return; 3779 return;
2708 3780
2709 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3781 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2711#if EV_MULTIPLICITY 3783#if EV_MULTIPLICITY
2712 assert (("libev: a signal must not be attached to two different loops", 3784 assert (("libev: a signal must not be attached to two different loops",
2713 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3785 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2714 3786
2715 signals [w->signum - 1].loop = EV_A; 3787 signals [w->signum - 1].loop = EV_A;
3788 ECB_MEMORY_FENCE_RELEASE;
2716#endif 3789#endif
2717 3790
2718 EV_FREQUENT_CHECK; 3791 EV_FREQUENT_CHECK;
2719 3792
2720#if EV_USE_SIGNALFD 3793#if EV_USE_SIGNALFD
… …
2767 sa.sa_handler = ev_sighandler; 3840 sa.sa_handler = ev_sighandler;
2768 sigfillset (&sa.sa_mask); 3841 sigfillset (&sa.sa_mask);
2769 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3842 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2770 sigaction (w->signum, &sa, 0); 3843 sigaction (w->signum, &sa, 0);
2771 3844
3845 if (origflags & EVFLAG_NOSIGMASK)
3846 {
2772 sigemptyset (&sa.sa_mask); 3847 sigemptyset (&sa.sa_mask);
2773 sigaddset (&sa.sa_mask, w->signum); 3848 sigaddset (&sa.sa_mask, w->signum);
2774 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3849 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3850 }
2775#endif 3851#endif
2776 } 3852 }
2777 3853
2778 EV_FREQUENT_CHECK; 3854 EV_FREQUENT_CHECK;
2779} 3855}
2780 3856
2781void noinline 3857void noinline
2782ev_signal_stop (EV_P_ ev_signal *w) 3858ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2783{ 3859{
2784 clear_pending (EV_A_ (W)w); 3860 clear_pending (EV_A_ (W)w);
2785 if (expect_false (!ev_is_active (w))) 3861 if (expect_false (!ev_is_active (w)))
2786 return; 3862 return;
2787 3863
… …
2813 } 3889 }
2814 3890
2815 EV_FREQUENT_CHECK; 3891 EV_FREQUENT_CHECK;
2816} 3892}
2817 3893
3894#endif
3895
3896#if EV_CHILD_ENABLE
3897
2818void 3898void
2819ev_child_start (EV_P_ ev_child *w) 3899ev_child_start (EV_P_ ev_child *w) EV_THROW
2820{ 3900{
2821#if EV_MULTIPLICITY 3901#if EV_MULTIPLICITY
2822 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3902 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2823#endif 3903#endif
2824 if (expect_false (ev_is_active (w))) 3904 if (expect_false (ev_is_active (w)))
2825 return; 3905 return;
2826 3906
2827 EV_FREQUENT_CHECK; 3907 EV_FREQUENT_CHECK;
2828 3908
2829 ev_start (EV_A_ (W)w, 1); 3909 ev_start (EV_A_ (W)w, 1);
2830 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3910 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2831 3911
2832 EV_FREQUENT_CHECK; 3912 EV_FREQUENT_CHECK;
2833} 3913}
2834 3914
2835void 3915void
2836ev_child_stop (EV_P_ ev_child *w) 3916ev_child_stop (EV_P_ ev_child *w) EV_THROW
2837{ 3917{
2838 clear_pending (EV_A_ (W)w); 3918 clear_pending (EV_A_ (W)w);
2839 if (expect_false (!ev_is_active (w))) 3919 if (expect_false (!ev_is_active (w)))
2840 return; 3920 return;
2841 3921
2842 EV_FREQUENT_CHECK; 3922 EV_FREQUENT_CHECK;
2843 3923
2844 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3924 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845 ev_stop (EV_A_ (W)w); 3925 ev_stop (EV_A_ (W)w);
2846 3926
2847 EV_FREQUENT_CHECK; 3927 EV_FREQUENT_CHECK;
2848} 3928}
3929
3930#endif
2849 3931
2850#if EV_STAT_ENABLE 3932#if EV_STAT_ENABLE
2851 3933
2852# ifdef _WIN32 3934# ifdef _WIN32
2853# undef lstat 3935# undef lstat
… …
2859#define MIN_STAT_INTERVAL 0.1074891 3941#define MIN_STAT_INTERVAL 0.1074891
2860 3942
2861static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3943static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2862 3944
2863#if EV_USE_INOTIFY 3945#if EV_USE_INOTIFY
2864# define EV_INOTIFY_BUFSIZE 8192 3946
3947/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3948# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2865 3949
2866static void noinline 3950static void noinline
2867infy_add (EV_P_ ev_stat *w) 3951infy_add (EV_P_ ev_stat *w)
2868{ 3952{
2869 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); 3953 w->wd = inotify_add_watch (fs_fd, w->path,
3954 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3955 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3956 | IN_DONT_FOLLOW | IN_MASK_ADD);
2870 3957
2871 if (w->wd >= 0) 3958 if (w->wd >= 0)
2872 { 3959 {
2873 struct statfs sfs; 3960 struct statfs sfs;
2874 3961
… …
2878 3965
2879 if (!fs_2625) 3966 if (!fs_2625)
2880 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3967 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2881 else if (!statfs (w->path, &sfs) 3968 else if (!statfs (w->path, &sfs)
2882 && (sfs.f_type == 0x1373 /* devfs */ 3969 && (sfs.f_type == 0x1373 /* devfs */
3970 || sfs.f_type == 0x4006 /* fat */
3971 || sfs.f_type == 0x4d44 /* msdos */
2883 || sfs.f_type == 0xEF53 /* ext2/3 */ 3972 || sfs.f_type == 0xEF53 /* ext2/3 */
3973 || sfs.f_type == 0x72b6 /* jffs2 */
3974 || sfs.f_type == 0x858458f6 /* ramfs */
3975 || sfs.f_type == 0x5346544e /* ntfs */
2884 || sfs.f_type == 0x3153464a /* jfs */ 3976 || sfs.f_type == 0x3153464a /* jfs */
3977 || sfs.f_type == 0x9123683e /* btrfs */
2885 || sfs.f_type == 0x52654973 /* reiser3 */ 3978 || sfs.f_type == 0x52654973 /* reiser3 */
2886 || sfs.f_type == 0x01021994 /* tempfs */ 3979 || sfs.f_type == 0x01021994 /* tmpfs */
2887 || sfs.f_type == 0x58465342 /* xfs */)) 3980 || sfs.f_type == 0x58465342 /* xfs */))
2888 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3981 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2889 else 3982 else
2890 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3983 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2891 } 3984 }
… …
2912 if (!pend || pend == path) 4005 if (!pend || pend == path)
2913 break; 4006 break;
2914 4007
2915 *pend = 0; 4008 *pend = 0;
2916 w->wd = inotify_add_watch (fs_fd, path, mask); 4009 w->wd = inotify_add_watch (fs_fd, path, mask);
2917 } 4010 }
2918 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 4011 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2919 } 4012 }
2920 } 4013 }
2921 4014
2922 if (w->wd >= 0) 4015 if (w->wd >= 0)
2923 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4016 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2924 4017
2925 /* now re-arm timer, if required */ 4018 /* now re-arm timer, if required */
2926 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4019 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2927 ev_timer_again (EV_A_ &w->timer); 4020 ev_timer_again (EV_A_ &w->timer);
2928 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4021 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2936 4029
2937 if (wd < 0) 4030 if (wd < 0)
2938 return; 4031 return;
2939 4032
2940 w->wd = -2; 4033 w->wd = -2;
2941 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 4034 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2942 wlist_del (&fs_hash [slot].head, (WL)w); 4035 wlist_del (&fs_hash [slot].head, (WL)w);
2943 4036
2944 /* remove this watcher, if others are watching it, they will rearm */ 4037 /* remove this watcher, if others are watching it, they will rearm */
2945 inotify_rm_watch (fs_fd, wd); 4038 inotify_rm_watch (fs_fd, wd);
2946} 4039}
… …
2948static void noinline 4041static void noinline
2949infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4042infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2950{ 4043{
2951 if (slot < 0) 4044 if (slot < 0)
2952 /* overflow, need to check for all hash slots */ 4045 /* overflow, need to check for all hash slots */
2953 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4046 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2954 infy_wd (EV_A_ slot, wd, ev); 4047 infy_wd (EV_A_ slot, wd, ev);
2955 else 4048 else
2956 { 4049 {
2957 WL w_; 4050 WL w_;
2958 4051
2959 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 4052 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2960 { 4053 {
2961 ev_stat *w = (ev_stat *)w_; 4054 ev_stat *w = (ev_stat *)w_;
2962 w_ = w_->next; /* lets us remove this watcher and all before it */ 4055 w_ = w_->next; /* lets us remove this watcher and all before it */
2963 4056
2964 if (w->wd == wd || wd == -1) 4057 if (w->wd == wd || wd == -1)
2965 { 4058 {
2966 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 4059 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2967 { 4060 {
2968 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4061 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2969 w->wd = -1; 4062 w->wd = -1;
2970 infy_add (EV_A_ w); /* re-add, no matter what */ 4063 infy_add (EV_A_ w); /* re-add, no matter what */
2971 } 4064 }
2972 4065
2973 stat_timer_cb (EV_A_ &w->timer, 0); 4066 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2978 4071
2979static void 4072static void
2980infy_cb (EV_P_ ev_io *w, int revents) 4073infy_cb (EV_P_ ev_io *w, int revents)
2981{ 4074{
2982 char buf [EV_INOTIFY_BUFSIZE]; 4075 char buf [EV_INOTIFY_BUFSIZE];
2983 struct inotify_event *ev = (struct inotify_event *)buf;
2984 int ofs; 4076 int ofs;
2985 int len = read (fs_fd, buf, sizeof (buf)); 4077 int len = read (fs_fd, buf, sizeof (buf));
2986 4078
2987 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 4079 for (ofs = 0; ofs < len; )
4080 {
4081 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2988 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4082 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4083 ofs += sizeof (struct inotify_event) + ev->len;
4084 }
2989} 4085}
2990 4086
2991inline_size void 4087inline_size void ecb_cold
2992check_2625 (EV_P) 4088ev_check_2625 (EV_P)
2993{ 4089{
2994 /* kernels < 2.6.25 are borked 4090 /* kernels < 2.6.25 are borked
2995 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4091 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2996 */ 4092 */
2997 struct utsname buf; 4093 if (ev_linux_version () < 0x020619)
2998 int major, minor, micro;
2999
3000 if (uname (&buf))
3001 return;
3002
3003 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
3004 return;
3005
3006 if (major < 2
3007 || (major == 2 && minor < 6)
3008 || (major == 2 && minor == 6 && micro < 25))
3009 return; 4094 return;
3010 4095
3011 fs_2625 = 1; 4096 fs_2625 = 1;
3012} 4097}
3013 4098
3014inline_size int 4099inline_size int
3015infy_newfd (void) 4100infy_newfd (void)
3016{ 4101{
3017#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4102#if defined IN_CLOEXEC && defined IN_NONBLOCK
3018 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4103 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3019 if (fd >= 0) 4104 if (fd >= 0)
3020 return fd; 4105 return fd;
3021#endif 4106#endif
3022 return inotify_init (); 4107 return inotify_init ();
… …
3028 if (fs_fd != -2) 4113 if (fs_fd != -2)
3029 return; 4114 return;
3030 4115
3031 fs_fd = -1; 4116 fs_fd = -1;
3032 4117
3033 check_2625 (EV_A); 4118 ev_check_2625 (EV_A);
3034 4119
3035 fs_fd = infy_newfd (); 4120 fs_fd = infy_newfd ();
3036 4121
3037 if (fs_fd >= 0) 4122 if (fs_fd >= 0)
3038 { 4123 {
… …
3063 ev_io_set (&fs_w, fs_fd, EV_READ); 4148 ev_io_set (&fs_w, fs_fd, EV_READ);
3064 ev_io_start (EV_A_ &fs_w); 4149 ev_io_start (EV_A_ &fs_w);
3065 ev_unref (EV_A); 4150 ev_unref (EV_A);
3066 } 4151 }
3067 4152
3068 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4153 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3069 { 4154 {
3070 WL w_ = fs_hash [slot].head; 4155 WL w_ = fs_hash [slot].head;
3071 fs_hash [slot].head = 0; 4156 fs_hash [slot].head = 0;
3072 4157
3073 while (w_) 4158 while (w_)
… …
3097#else 4182#else
3098# define EV_LSTAT(p,b) lstat (p, b) 4183# define EV_LSTAT(p,b) lstat (p, b)
3099#endif 4184#endif
3100 4185
3101void 4186void
3102ev_stat_stat (EV_P_ ev_stat *w) 4187ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3103{ 4188{
3104 if (lstat (w->path, &w->attr) < 0) 4189 if (lstat (w->path, &w->attr) < 0)
3105 w->attr.st_nlink = 0; 4190 w->attr.st_nlink = 0;
3106 else if (!w->attr.st_nlink) 4191 else if (!w->attr.st_nlink)
3107 w->attr.st_nlink = 1; 4192 w->attr.st_nlink = 1;
… …
3146 ev_feed_event (EV_A_ w, EV_STAT); 4231 ev_feed_event (EV_A_ w, EV_STAT);
3147 } 4232 }
3148} 4233}
3149 4234
3150void 4235void
3151ev_stat_start (EV_P_ ev_stat *w) 4236ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3152{ 4237{
3153 if (expect_false (ev_is_active (w))) 4238 if (expect_false (ev_is_active (w)))
3154 return; 4239 return;
3155 4240
3156 ev_stat_stat (EV_A_ w); 4241 ev_stat_stat (EV_A_ w);
… …
3177 4262
3178 EV_FREQUENT_CHECK; 4263 EV_FREQUENT_CHECK;
3179} 4264}
3180 4265
3181void 4266void
3182ev_stat_stop (EV_P_ ev_stat *w) 4267ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3183{ 4268{
3184 clear_pending (EV_A_ (W)w); 4269 clear_pending (EV_A_ (W)w);
3185 if (expect_false (!ev_is_active (w))) 4270 if (expect_false (!ev_is_active (w)))
3186 return; 4271 return;
3187 4272
… …
3203} 4288}
3204#endif 4289#endif
3205 4290
3206#if EV_IDLE_ENABLE 4291#if EV_IDLE_ENABLE
3207void 4292void
3208ev_idle_start (EV_P_ ev_idle *w) 4293ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3209{ 4294{
3210 if (expect_false (ev_is_active (w))) 4295 if (expect_false (ev_is_active (w)))
3211 return; 4296 return;
3212 4297
3213 pri_adjust (EV_A_ (W)w); 4298 pri_adjust (EV_A_ (W)w);
… …
3226 4311
3227 EV_FREQUENT_CHECK; 4312 EV_FREQUENT_CHECK;
3228} 4313}
3229 4314
3230void 4315void
3231ev_idle_stop (EV_P_ ev_idle *w) 4316ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3232{ 4317{
3233 clear_pending (EV_A_ (W)w); 4318 clear_pending (EV_A_ (W)w);
3234 if (expect_false (!ev_is_active (w))) 4319 if (expect_false (!ev_is_active (w)))
3235 return; 4320 return;
3236 4321
… …
3248 4333
3249 EV_FREQUENT_CHECK; 4334 EV_FREQUENT_CHECK;
3250} 4335}
3251#endif 4336#endif
3252 4337
4338#if EV_PREPARE_ENABLE
3253void 4339void
3254ev_prepare_start (EV_P_ ev_prepare *w) 4340ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3255{ 4341{
3256 if (expect_false (ev_is_active (w))) 4342 if (expect_false (ev_is_active (w)))
3257 return; 4343 return;
3258 4344
3259 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
… …
3264 4350
3265 EV_FREQUENT_CHECK; 4351 EV_FREQUENT_CHECK;
3266} 4352}
3267 4353
3268void 4354void
3269ev_prepare_stop (EV_P_ ev_prepare *w) 4355ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3270{ 4356{
3271 clear_pending (EV_A_ (W)w); 4357 clear_pending (EV_A_ (W)w);
3272 if (expect_false (!ev_is_active (w))) 4358 if (expect_false (!ev_is_active (w)))
3273 return; 4359 return;
3274 4360
… …
3283 4369
3284 ev_stop (EV_A_ (W)w); 4370 ev_stop (EV_A_ (W)w);
3285 4371
3286 EV_FREQUENT_CHECK; 4372 EV_FREQUENT_CHECK;
3287} 4373}
4374#endif
3288 4375
4376#if EV_CHECK_ENABLE
3289void 4377void
3290ev_check_start (EV_P_ ev_check *w) 4378ev_check_start (EV_P_ ev_check *w) EV_THROW
3291{ 4379{
3292 if (expect_false (ev_is_active (w))) 4380 if (expect_false (ev_is_active (w)))
3293 return; 4381 return;
3294 4382
3295 EV_FREQUENT_CHECK; 4383 EV_FREQUENT_CHECK;
… …
3300 4388
3301 EV_FREQUENT_CHECK; 4389 EV_FREQUENT_CHECK;
3302} 4390}
3303 4391
3304void 4392void
3305ev_check_stop (EV_P_ ev_check *w) 4393ev_check_stop (EV_P_ ev_check *w) EV_THROW
3306{ 4394{
3307 clear_pending (EV_A_ (W)w); 4395 clear_pending (EV_A_ (W)w);
3308 if (expect_false (!ev_is_active (w))) 4396 if (expect_false (!ev_is_active (w)))
3309 return; 4397 return;
3310 4398
… …
3319 4407
3320 ev_stop (EV_A_ (W)w); 4408 ev_stop (EV_A_ (W)w);
3321 4409
3322 EV_FREQUENT_CHECK; 4410 EV_FREQUENT_CHECK;
3323} 4411}
4412#endif
3324 4413
3325#if EV_EMBED_ENABLE 4414#if EV_EMBED_ENABLE
3326void noinline 4415void noinline
3327ev_embed_sweep (EV_P_ ev_embed *w) 4416ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3328{ 4417{
3329 ev_loop (w->other, EVLOOP_NONBLOCK); 4418 ev_run (w->other, EVRUN_NOWAIT);
3330} 4419}
3331 4420
3332static void 4421static void
3333embed_io_cb (EV_P_ ev_io *io, int revents) 4422embed_io_cb (EV_P_ ev_io *io, int revents)
3334{ 4423{
3335 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4424 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3336 4425
3337 if (ev_cb (w)) 4426 if (ev_cb (w))
3338 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4427 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3339 else 4428 else
3340 ev_loop (w->other, EVLOOP_NONBLOCK); 4429 ev_run (w->other, EVRUN_NOWAIT);
3341} 4430}
3342 4431
3343static void 4432static void
3344embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4433embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3345{ 4434{
… …
3349 EV_P = w->other; 4438 EV_P = w->other;
3350 4439
3351 while (fdchangecnt) 4440 while (fdchangecnt)
3352 { 4441 {
3353 fd_reify (EV_A); 4442 fd_reify (EV_A);
3354 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4443 ev_run (EV_A_ EVRUN_NOWAIT);
3355 } 4444 }
3356 } 4445 }
3357} 4446}
3358 4447
3359static void 4448static void
… …
3365 4454
3366 { 4455 {
3367 EV_P = w->other; 4456 EV_P = w->other;
3368 4457
3369 ev_loop_fork (EV_A); 4458 ev_loop_fork (EV_A);
3370 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4459 ev_run (EV_A_ EVRUN_NOWAIT);
3371 } 4460 }
3372 4461
3373 ev_embed_start (EV_A_ w); 4462 ev_embed_start (EV_A_ w);
3374} 4463}
3375 4464
… …
3380 ev_idle_stop (EV_A_ idle); 4469 ev_idle_stop (EV_A_ idle);
3381} 4470}
3382#endif 4471#endif
3383 4472
3384void 4473void
3385ev_embed_start (EV_P_ ev_embed *w) 4474ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3386{ 4475{
3387 if (expect_false (ev_is_active (w))) 4476 if (expect_false (ev_is_active (w)))
3388 return; 4477 return;
3389 4478
3390 { 4479 {
… …
3411 4500
3412 EV_FREQUENT_CHECK; 4501 EV_FREQUENT_CHECK;
3413} 4502}
3414 4503
3415void 4504void
3416ev_embed_stop (EV_P_ ev_embed *w) 4505ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3417{ 4506{
3418 clear_pending (EV_A_ (W)w); 4507 clear_pending (EV_A_ (W)w);
3419 if (expect_false (!ev_is_active (w))) 4508 if (expect_false (!ev_is_active (w)))
3420 return; 4509 return;
3421 4510
… …
3423 4512
3424 ev_io_stop (EV_A_ &w->io); 4513 ev_io_stop (EV_A_ &w->io);
3425 ev_prepare_stop (EV_A_ &w->prepare); 4514 ev_prepare_stop (EV_A_ &w->prepare);
3426 ev_fork_stop (EV_A_ &w->fork); 4515 ev_fork_stop (EV_A_ &w->fork);
3427 4516
4517 ev_stop (EV_A_ (W)w);
4518
3428 EV_FREQUENT_CHECK; 4519 EV_FREQUENT_CHECK;
3429} 4520}
3430#endif 4521#endif
3431 4522
3432#if EV_FORK_ENABLE 4523#if EV_FORK_ENABLE
3433void 4524void
3434ev_fork_start (EV_P_ ev_fork *w) 4525ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3435{ 4526{
3436 if (expect_false (ev_is_active (w))) 4527 if (expect_false (ev_is_active (w)))
3437 return; 4528 return;
3438 4529
3439 EV_FREQUENT_CHECK; 4530 EV_FREQUENT_CHECK;
… …
3444 4535
3445 EV_FREQUENT_CHECK; 4536 EV_FREQUENT_CHECK;
3446} 4537}
3447 4538
3448void 4539void
3449ev_fork_stop (EV_P_ ev_fork *w) 4540ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3450{ 4541{
3451 clear_pending (EV_A_ (W)w); 4542 clear_pending (EV_A_ (W)w);
3452 if (expect_false (!ev_is_active (w))) 4543 if (expect_false (!ev_is_active (w)))
3453 return; 4544 return;
3454 4545
… …
3465 4556
3466 EV_FREQUENT_CHECK; 4557 EV_FREQUENT_CHECK;
3467} 4558}
3468#endif 4559#endif
3469 4560
4561#if EV_CLEANUP_ENABLE
4562void
4563ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4564{
4565 if (expect_false (ev_is_active (w)))
4566 return;
4567
4568 EV_FREQUENT_CHECK;
4569
4570 ev_start (EV_A_ (W)w, ++cleanupcnt);
4571 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4572 cleanups [cleanupcnt - 1] = w;
4573
4574 /* cleanup watchers should never keep a refcount on the loop */
4575 ev_unref (EV_A);
4576 EV_FREQUENT_CHECK;
4577}
4578
4579void
4580ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4581{
4582 clear_pending (EV_A_ (W)w);
4583 if (expect_false (!ev_is_active (w)))
4584 return;
4585
4586 EV_FREQUENT_CHECK;
4587 ev_ref (EV_A);
4588
4589 {
4590 int active = ev_active (w);
4591
4592 cleanups [active - 1] = cleanups [--cleanupcnt];
4593 ev_active (cleanups [active - 1]) = active;
4594 }
4595
4596 ev_stop (EV_A_ (W)w);
4597
4598 EV_FREQUENT_CHECK;
4599}
4600#endif
4601
3470#if EV_ASYNC_ENABLE 4602#if EV_ASYNC_ENABLE
3471void 4603void
3472ev_async_start (EV_P_ ev_async *w) 4604ev_async_start (EV_P_ ev_async *w) EV_THROW
3473{ 4605{
3474 if (expect_false (ev_is_active (w))) 4606 if (expect_false (ev_is_active (w)))
3475 return; 4607 return;
4608
4609 w->sent = 0;
3476 4610
3477 evpipe_init (EV_A); 4611 evpipe_init (EV_A);
3478 4612
3479 EV_FREQUENT_CHECK; 4613 EV_FREQUENT_CHECK;
3480 4614
… …
3484 4618
3485 EV_FREQUENT_CHECK; 4619 EV_FREQUENT_CHECK;
3486} 4620}
3487 4621
3488void 4622void
3489ev_async_stop (EV_P_ ev_async *w) 4623ev_async_stop (EV_P_ ev_async *w) EV_THROW
3490{ 4624{
3491 clear_pending (EV_A_ (W)w); 4625 clear_pending (EV_A_ (W)w);
3492 if (expect_false (!ev_is_active (w))) 4626 if (expect_false (!ev_is_active (w)))
3493 return; 4627 return;
3494 4628
… …
3505 4639
3506 EV_FREQUENT_CHECK; 4640 EV_FREQUENT_CHECK;
3507} 4641}
3508 4642
3509void 4643void
3510ev_async_send (EV_P_ ev_async *w) 4644ev_async_send (EV_P_ ev_async *w) EV_THROW
3511{ 4645{
3512 w->sent = 1; 4646 w->sent = 1;
3513 evpipe_write (EV_A_ &async_pending); 4647 evpipe_write (EV_A_ &async_pending);
3514} 4648}
3515#endif 4649#endif
… …
3552 4686
3553 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4687 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3554} 4688}
3555 4689
3556void 4690void
3557ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4691ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3558{ 4692{
3559 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4693 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3560 4694
3561 if (expect_false (!once)) 4695 if (expect_false (!once))
3562 { 4696 {
3563 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4697 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3564 return; 4698 return;
3565 } 4699 }
3566 4700
3567 once->cb = cb; 4701 once->cb = cb;
3568 once->arg = arg; 4702 once->arg = arg;
… …
3583} 4717}
3584 4718
3585/*****************************************************************************/ 4719/*****************************************************************************/
3586 4720
3587#if EV_WALK_ENABLE 4721#if EV_WALK_ENABLE
3588void 4722void ecb_cold
3589ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4723ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3590{ 4724{
3591 int i, j; 4725 int i, j;
3592 ev_watcher_list *wl, *wn; 4726 ev_watcher_list *wl, *wn;
3593 4727
3594 if (types & (EV_IO | EV_EMBED)) 4728 if (types & (EV_IO | EV_EMBED))
… …
3637 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4771 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3638#endif 4772#endif
3639 4773
3640#if EV_IDLE_ENABLE 4774#if EV_IDLE_ENABLE
3641 if (types & EV_IDLE) 4775 if (types & EV_IDLE)
3642 for (j = NUMPRI; i--; ) 4776 for (j = NUMPRI; j--; )
3643 for (i = idlecnt [j]; i--; ) 4777 for (i = idlecnt [j]; i--; )
3644 cb (EV_A_ EV_IDLE, idles [j][i]); 4778 cb (EV_A_ EV_IDLE, idles [j][i]);
3645#endif 4779#endif
3646 4780
3647#if EV_FORK_ENABLE 4781#if EV_FORK_ENABLE
… …
3655 if (types & EV_ASYNC) 4789 if (types & EV_ASYNC)
3656 for (i = asynccnt; i--; ) 4790 for (i = asynccnt; i--; )
3657 cb (EV_A_ EV_ASYNC, asyncs [i]); 4791 cb (EV_A_ EV_ASYNC, asyncs [i]);
3658#endif 4792#endif
3659 4793
4794#if EV_PREPARE_ENABLE
3660 if (types & EV_PREPARE) 4795 if (types & EV_PREPARE)
3661 for (i = preparecnt; i--; ) 4796 for (i = preparecnt; i--; )
3662#if EV_EMBED_ENABLE 4797# if EV_EMBED_ENABLE
3663 if (ev_cb (prepares [i]) != embed_prepare_cb) 4798 if (ev_cb (prepares [i]) != embed_prepare_cb)
3664#endif 4799# endif
3665 cb (EV_A_ EV_PREPARE, prepares [i]); 4800 cb (EV_A_ EV_PREPARE, prepares [i]);
4801#endif
3666 4802
4803#if EV_CHECK_ENABLE
3667 if (types & EV_CHECK) 4804 if (types & EV_CHECK)
3668 for (i = checkcnt; i--; ) 4805 for (i = checkcnt; i--; )
3669 cb (EV_A_ EV_CHECK, checks [i]); 4806 cb (EV_A_ EV_CHECK, checks [i]);
4807#endif
3670 4808
4809#if EV_SIGNAL_ENABLE
3671 if (types & EV_SIGNAL) 4810 if (types & EV_SIGNAL)
3672 for (i = 0; i < EV_NSIG - 1; ++i) 4811 for (i = 0; i < EV_NSIG - 1; ++i)
3673 for (wl = signals [i].head; wl; ) 4812 for (wl = signals [i].head; wl; )
3674 { 4813 {
3675 wn = wl->next; 4814 wn = wl->next;
3676 cb (EV_A_ EV_SIGNAL, wl); 4815 cb (EV_A_ EV_SIGNAL, wl);
3677 wl = wn; 4816 wl = wn;
3678 } 4817 }
4818#endif
3679 4819
4820#if EV_CHILD_ENABLE
3680 if (types & EV_CHILD) 4821 if (types & EV_CHILD)
3681 for (i = EV_PID_HASHSIZE; i--; ) 4822 for (i = (EV_PID_HASHSIZE); i--; )
3682 for (wl = childs [i]; wl; ) 4823 for (wl = childs [i]; wl; )
3683 { 4824 {
3684 wn = wl->next; 4825 wn = wl->next;
3685 cb (EV_A_ EV_CHILD, wl); 4826 cb (EV_A_ EV_CHILD, wl);
3686 wl = wn; 4827 wl = wn;
3687 } 4828 }
4829#endif
3688/* EV_STAT 0x00001000 /* stat data changed */ 4830/* EV_STAT 0x00001000 /* stat data changed */
3689/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4831/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3690} 4832}
3691#endif 4833#endif
3692 4834
3693#if EV_MULTIPLICITY 4835#if EV_MULTIPLICITY
3694 #include "ev_wrap.h" 4836 #include "ev_wrap.h"
3695#endif 4837#endif
3696 4838
3697#ifdef __cplusplus
3698}
3699#endif
3700

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