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Comparing libev/ev.c (file contents):
Revision 1.306 by root, Sun Jul 19 06:35:25 2009 UTC vs.
Revision 1.441 by root, Wed May 30 15:45:40 2012 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
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
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>
168#include <string.h>
158#include <fcntl.h> 169#include <fcntl.h>
159#include <stddef.h> 170#include <stddef.h>
160 171
161#include <stdio.h> 172#include <stdio.h>
162 173
163#include <assert.h> 174#include <assert.h>
164#include <errno.h> 175#include <errno.h>
165#include <sys/types.h> 176#include <sys/types.h>
166#include <time.h> 177#include <time.h>
178#include <limits.h>
167 179
168#include <signal.h> 180#include <signal.h>
169 181
170#ifdef EV_H 182#ifdef EV_H
171# include EV_H 183# include EV_H
172#else 184#else
173# 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
174#endif 197#endif
175 198
176#ifndef _WIN32 199#ifndef _WIN32
177# include <sys/time.h> 200# include <sys/time.h>
178# include <sys/wait.h> 201# include <sys/wait.h>
179# include <unistd.h> 202# include <unistd.h>
180#else 203#else
181# include <io.h> 204# include <io.h>
182# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
183# include <windows.h> 207# include <windows.h>
184# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
186# endif 210# endif
211# undef EV_AVOID_STDIO
187#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
188 221
189/* 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 */
190 223
191/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
192/* one some platforms, NSIG is one too large. we do not bother */
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__ >= 9)) 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
331#endif 360#endif
332 361
333/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* 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. */ 363/* which makes programs even slower. might work on other unices, too. */
335#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
336# include <syscall.h> 365# include <sys/syscall.h>
337# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
338# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
339# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
340# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
341# else 370# else
… …
344# endif 373# endif
345#endif 374#endif
346 375
347/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 376/* this block fixes any misconfiguration where we know we run into trouble otherwise */
348 377
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
349#ifndef CLOCK_MONOTONIC 384#ifndef CLOCK_MONOTONIC
350# undef EV_USE_MONOTONIC 385# undef EV_USE_MONOTONIC
351# define EV_USE_MONOTONIC 0 386# define EV_USE_MONOTONIC 0
352#endif 387#endif
353 388
… …
360# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
361# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
362#endif 397#endif
363 398
364#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
365# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
366# include <sys/select.h> 402# include <sys/select.h>
367# endif 403# endif
368#endif 404#endif
369 405
370#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
371# include <sys/utsname.h>
372# include <sys/statfs.h> 407# include <sys/statfs.h>
373# include <sys/inotify.h> 408# include <sys/inotify.h>
374/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
375# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
376# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
377# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
378# endif 413# endif
379#endif 414#endif
380 415
381#if EV_SELECT_IS_WINSOCKET
382# include <winsock.h>
383#endif
384
385#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
386/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
387# include <stdint.h> 418# include <stdint.h>
388# ifndef EFD_NONBLOCK 419# ifndef EFD_NONBLOCK
389# define EFD_NONBLOCK O_NONBLOCK 420# define EFD_NONBLOCK O_NONBLOCK
390# endif 421# endif
391# ifndef EFD_CLOEXEC 422# ifndef EFD_CLOEXEC
423# ifdef O_CLOEXEC
392# define EFD_CLOEXEC O_CLOEXEC 424# define EFD_CLOEXEC O_CLOEXEC
425# else
426# define EFD_CLOEXEC 02000000
427# endif
393# endif 428# endif
394# ifdef __cplusplus 429EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
395extern "C" { 430#endif
431
432#if EV_USE_SIGNALFD
433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
434# include <stdint.h>
435# ifndef SFD_NONBLOCK
436# define SFD_NONBLOCK O_NONBLOCK
396# endif 437# endif
397int eventfd (unsigned int initval, int flags); 438# ifndef SFD_CLOEXEC
398# ifdef __cplusplus 439# ifdef O_CLOEXEC
399} 440# define SFD_CLOEXEC O_CLOEXEC
441# else
442# define SFD_CLOEXEC 02000000
443# endif
400# endif 444# endif
401#endif 445EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
402 446
403#if EV_USE_SIGNALFD 447struct signalfd_siginfo
404# include <sys/signalfd.h> 448{
449 uint32_t ssi_signo;
450 char pad[128 - sizeof (uint32_t)];
451};
405#endif 452#endif
406 453
407/**/ 454/**/
408 455
409#if EV_VERIFY >= 3 456#if EV_VERIFY >= 3
410# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 457# define EV_FREQUENT_CHECK ev_verify (EV_A)
411#else 458#else
412# define EV_FREQUENT_CHECK do { } while (0) 459# define EV_FREQUENT_CHECK do { } while (0)
413#endif 460#endif
414 461
415/* 462/*
416 * This is used to avoid floating point rounding problems. 463 * This is used to work around floating point rounding problems.
417 * It is added to ev_rt_now when scheduling periodics
418 * to ensure progress, time-wise, even when rounding
419 * errors are against us.
420 * This value is good at least till the year 4000. 464 * This value is good at least till the year 4000.
421 * Better solutions welcome.
422 */ 465 */
423#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
424 468
425#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
426#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
427/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
428 471
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
474
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */
477/*
478 * libecb - http://software.schmorp.de/pkg/libecb
479 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved.
483 *
484 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met:
486 *
487 * 1. Redistributions of source code must retain the above copyright notice,
488 * this list of conditions and the following disclaimer.
489 *
490 * 2. Redistributions in binary form must reproduce the above copyright
491 * notice, this list of conditions and the following disclaimer in the
492 * documentation and/or other materials provided with the distribution.
493 *
494 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
495 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
496 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
497 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
498 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE.
504 */
505
506#ifndef ECB_H
507#define ECB_H
508
509/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
429#if __GNUC__ >= 4 519 #if __GNUC__
430# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
431# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
526 #ifdef _WIN64
527 #define ECB_PTRSIZE 8
528 typedef uint64_t uintptr_t;
529 typedef int64_t intptr_t;
530 #else
531 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t;
534 #endif
535 typedef intptr_t ptrdiff_t;
432#else 536#else
433# define expect(expr,value) (expr) 537 #include <inttypes.h>
434# define noinline 538 #if UINTMAX_MAX > 0xffffffffU
435# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 539 #define ECB_PTRSIZE 8
436# define inline 540 #else
541 #define ECB_PTRSIZE 4
542 #endif
437# endif 543#endif
544
545/* many compilers define _GNUC_ to some versions but then only implement
546 * what their idiot authors think are the "more important" extensions,
547 * causing enormous grief in return for some better fake benchmark numbers.
548 * or so.
549 * we try to detect these and simply assume they are not gcc - if they have
550 * an issue with that they should have done it right in the first place.
551 */
552#ifndef ECB_GCC_VERSION
553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
554 #define ECB_GCC_VERSION(major,minor) 0
555 #else
556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
438#endif 557 #endif
558#endif
439 559
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
561#define ECB_C99 (__STDC_VERSION__ >= 199901L)
562#define ECB_C11 (__STDC_VERSION__ >= 201112L)
563#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP98 (__cplusplus >= 199711L)
565#define ECB_CPP11 (__cplusplus >= 201103L)
566
567/*****************************************************************************/
568
569/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
570/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
571
572#if ECB_NO_THREADS
573 #define ECB_NO_SMP 1
574#endif
575
576#if ECB_NO_SMP
577 #define ECB_MEMORY_FENCE do { } while (0)
578#endif
579
580#ifndef ECB_MEMORY_FENCE
581 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
582 #if __i386 || __i386__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
584 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
585 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
586 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
587 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
588 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
589 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
590 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
591 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
592 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
593 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
594 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
595 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
596 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
597 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
598 #elif __sparc || __sparc__
599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
601 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
602 #elif defined __s390__ || defined __s390x__
603 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
604 #elif defined __mips__
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
606 #elif defined __alpha__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
608 #elif defined __hppa__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
610 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
611 #elif defined __ia64__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
613 #endif
614 #endif
615#endif
616
617#ifndef ECB_MEMORY_FENCE
618 #if ECB_GCC_VERSION(4,7)
619 /* see comment below about the C11 memory model. in short - avoid */
620 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
621 #elif defined __clang && __has_feature (cxx_atomic)
622 /* see above */
623 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
624 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
625 #define ECB_MEMORY_FENCE __sync_synchronize ()
626 #elif _MSC_VER >= 1400 /* VC++ 2005 */
627 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
628 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
629 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
630 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
631 #elif defined _WIN32
632 #include <WinNT.h>
633 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
634 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
635 #include <mbarrier.h>
636 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
637 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
638 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
639 #elif __xlC__
640 #define ECB_MEMORY_FENCE __sync ()
641 #endif
642#endif
643
644#ifndef ECB_MEMORY_FENCE
645 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
646 /* we assume that these memory fences work on all variables/all memory accesses, */
647 /* not just C11 atomics and atomic accesses */
648 #include <stdatomic.h>
649 /* unfortunately, the C11 memory model seems to be very limited, and unable to express */
650 /* simple barrier semantics. That means we need to take out thor's hammer. */
651 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
652 #endif
653#endif
654
655#ifndef ECB_MEMORY_FENCE
656 #if !ECB_AVOID_PTHREADS
657 /*
658 * if you get undefined symbol references to pthread_mutex_lock,
659 * or failure to find pthread.h, then you should implement
660 * the ECB_MEMORY_FENCE operations for your cpu/compiler
661 * OR provide pthread.h and link against the posix thread library
662 * of your system.
663 */
664 #include <pthread.h>
665 #define ECB_NEEDS_PTHREADS 1
666 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
667
668 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
669 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
670 #endif
671#endif
672
673#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
674 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
675#endif
676
677#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
678 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
679#endif
680
681/*****************************************************************************/
682
683#if __cplusplus
684 #define ecb_inline static inline
685#elif ECB_GCC_VERSION(2,5)
686 #define ecb_inline static __inline__
687#elif ECB_C99
688 #define ecb_inline static inline
689#else
690 #define ecb_inline static
691#endif
692
693#if ECB_GCC_VERSION(3,3)
694 #define ecb_restrict __restrict__
695#elif ECB_C99
696 #define ecb_restrict restrict
697#else
698 #define ecb_restrict
699#endif
700
701typedef int ecb_bool;
702
703#define ECB_CONCAT_(a, b) a ## b
704#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
705#define ECB_STRINGIFY_(a) # a
706#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
707
708#define ecb_function_ ecb_inline
709
710#if ECB_GCC_VERSION(3,1)
711 #define ecb_attribute(attrlist) __attribute__(attrlist)
712 #define ecb_is_constant(expr) __builtin_constant_p (expr)
713 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
714 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
715#else
716 #define ecb_attribute(attrlist)
717 #define ecb_is_constant(expr) 0
718 #define ecb_expect(expr,value) (expr)
719 #define ecb_prefetch(addr,rw,locality)
720#endif
721
722/* no emulation for ecb_decltype */
723#if ECB_GCC_VERSION(4,5)
724 #define ecb_decltype(x) __decltype(x)
725#elif ECB_GCC_VERSION(3,0)
726 #define ecb_decltype(x) __typeof(x)
727#endif
728
729#define ecb_noinline ecb_attribute ((__noinline__))
730#define ecb_unused ecb_attribute ((__unused__))
731#define ecb_const ecb_attribute ((__const__))
732#define ecb_pure ecb_attribute ((__pure__))
733
734#if ECB_C11
735 #define ecb_noreturn _Noreturn
736#else
737 #define ecb_noreturn ecb_attribute ((__noreturn__))
738#endif
739
740#if ECB_GCC_VERSION(4,3)
741 #define ecb_artificial ecb_attribute ((__artificial__))
742 #define ecb_hot ecb_attribute ((__hot__))
743 #define ecb_cold ecb_attribute ((__cold__))
744#else
745 #define ecb_artificial
746 #define ecb_hot
747 #define ecb_cold
748#endif
749
750/* put around conditional expressions if you are very sure that the */
751/* expression is mostly true or mostly false. note that these return */
752/* booleans, not the expression. */
440#define expect_false(expr) expect ((expr) != 0, 0) 753#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
441#define expect_true(expr) expect ((expr) != 0, 1) 754#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
755/* for compatibility to the rest of the world */
756#define ecb_likely(expr) ecb_expect_true (expr)
757#define ecb_unlikely(expr) ecb_expect_false (expr)
758
759/* count trailing zero bits and count # of one bits */
760#if ECB_GCC_VERSION(3,4)
761 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
762 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
763 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
764 #define ecb_ctz32(x) __builtin_ctz (x)
765 #define ecb_ctz64(x) __builtin_ctzll (x)
766 #define ecb_popcount32(x) __builtin_popcount (x)
767 /* no popcountll */
768#else
769 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
770 ecb_function_ int
771 ecb_ctz32 (uint32_t x)
772 {
773 int r = 0;
774
775 x &= ~x + 1; /* this isolates the lowest bit */
776
777#if ECB_branchless_on_i386
778 r += !!(x & 0xaaaaaaaa) << 0;
779 r += !!(x & 0xcccccccc) << 1;
780 r += !!(x & 0xf0f0f0f0) << 2;
781 r += !!(x & 0xff00ff00) << 3;
782 r += !!(x & 0xffff0000) << 4;
783#else
784 if (x & 0xaaaaaaaa) r += 1;
785 if (x & 0xcccccccc) r += 2;
786 if (x & 0xf0f0f0f0) r += 4;
787 if (x & 0xff00ff00) r += 8;
788 if (x & 0xffff0000) r += 16;
789#endif
790
791 return r;
792 }
793
794 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
795 ecb_function_ int
796 ecb_ctz64 (uint64_t x)
797 {
798 int shift = x & 0xffffffffU ? 0 : 32;
799 return ecb_ctz32 (x >> shift) + shift;
800 }
801
802 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
803 ecb_function_ int
804 ecb_popcount32 (uint32_t x)
805 {
806 x -= (x >> 1) & 0x55555555;
807 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
808 x = ((x >> 4) + x) & 0x0f0f0f0f;
809 x *= 0x01010101;
810
811 return x >> 24;
812 }
813
814 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
815 ecb_function_ int ecb_ld32 (uint32_t x)
816 {
817 int r = 0;
818
819 if (x >> 16) { x >>= 16; r += 16; }
820 if (x >> 8) { x >>= 8; r += 8; }
821 if (x >> 4) { x >>= 4; r += 4; }
822 if (x >> 2) { x >>= 2; r += 2; }
823 if (x >> 1) { r += 1; }
824
825 return r;
826 }
827
828 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
829 ecb_function_ int ecb_ld64 (uint64_t x)
830 {
831 int r = 0;
832
833 if (x >> 32) { x >>= 32; r += 32; }
834
835 return r + ecb_ld32 (x);
836 }
837#endif
838
839ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
840ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
841ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
842ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
843
844ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
845ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
846{
847 return ( (x * 0x0802U & 0x22110U)
848 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
849}
850
851ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
852ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
853{
854 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
855 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
856 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
857 x = ( x >> 8 ) | ( x << 8);
858
859 return x;
860}
861
862ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
863ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
864{
865 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
866 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
867 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
868 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
869 x = ( x >> 16 ) | ( x << 16);
870
871 return x;
872}
873
874/* popcount64 is only available on 64 bit cpus as gcc builtin */
875/* so for this version we are lazy */
876ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
877ecb_function_ int
878ecb_popcount64 (uint64_t x)
879{
880 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
881}
882
883ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
884ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
885ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
886ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
887ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
888ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
889ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
890ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
891
892ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
893ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
894ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
895ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
896ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
897ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
898ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
899ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
900
901#if ECB_GCC_VERSION(4,3)
902 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
903 #define ecb_bswap32(x) __builtin_bswap32 (x)
904 #define ecb_bswap64(x) __builtin_bswap64 (x)
905#else
906 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
907 ecb_function_ uint16_t
908 ecb_bswap16 (uint16_t x)
909 {
910 return ecb_rotl16 (x, 8);
911 }
912
913 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
914 ecb_function_ uint32_t
915 ecb_bswap32 (uint32_t x)
916 {
917 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
918 }
919
920 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
921 ecb_function_ uint64_t
922 ecb_bswap64 (uint64_t x)
923 {
924 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
925 }
926#endif
927
928#if ECB_GCC_VERSION(4,5)
929 #define ecb_unreachable() __builtin_unreachable ()
930#else
931 /* this seems to work fine, but gcc always emits a warning for it :/ */
932 ecb_inline void ecb_unreachable (void) ecb_noreturn;
933 ecb_inline void ecb_unreachable (void) { }
934#endif
935
936/* try to tell the compiler that some condition is definitely true */
937#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
938
939ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
940ecb_inline unsigned char
941ecb_byteorder_helper (void)
942{
943 const uint32_t u = 0x11223344;
944 return *(unsigned char *)&u;
945}
946
947ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
948ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
949ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
950ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
951
952#if ECB_GCC_VERSION(3,0) || ECB_C99
953 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
954#else
955 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
956#endif
957
958#if __cplusplus
959 template<typename T>
960 static inline T ecb_div_rd (T val, T div)
961 {
962 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
963 }
964 template<typename T>
965 static inline T ecb_div_ru (T val, T div)
966 {
967 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
968 }
969#else
970 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
971 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
972#endif
973
974#if ecb_cplusplus_does_not_suck
975 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
976 template<typename T, int N>
977 static inline int ecb_array_length (const T (&arr)[N])
978 {
979 return N;
980 }
981#else
982 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
983#endif
984
985#endif
986
987/* ECB.H END */
988
989#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
990/* if your architecture doesn't need memory fences, e.g. because it is
991 * single-cpu/core, or if you use libev in a project that doesn't use libev
992 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
993 * libev, in which cases the memory fences become nops.
994 * alternatively, you can remove this #error and link against libpthread,
995 * which will then provide the memory fences.
996 */
997# error "memory fences not defined for your architecture, please report"
998#endif
999
1000#ifndef ECB_MEMORY_FENCE
1001# define ECB_MEMORY_FENCE do { } while (0)
1002# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1003# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1004#endif
1005
1006#define expect_false(cond) ecb_expect_false (cond)
1007#define expect_true(cond) ecb_expect_true (cond)
1008#define noinline ecb_noinline
1009
442#define inline_size static inline 1010#define inline_size ecb_inline
443 1011
444#if EV_MINIMAL 1012#if EV_FEATURE_CODE
1013# define inline_speed ecb_inline
1014#else
445# define inline_speed static noinline 1015# define inline_speed static noinline
446#else
447# define inline_speed static inline
448#endif 1016#endif
449 1017
450#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1018#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
451 1019
452#if EV_MINPRI == EV_MAXPRI 1020#if EV_MINPRI == EV_MAXPRI
… …
465#define ev_active(w) ((W)(w))->active 1033#define ev_active(w) ((W)(w))->active
466#define ev_at(w) ((WT)(w))->at 1034#define ev_at(w) ((WT)(w))->at
467 1035
468#if EV_USE_REALTIME 1036#if EV_USE_REALTIME
469/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1037/* sig_atomic_t is used to avoid per-thread variables or locking but still */
470/* giving it a reasonably high chance of working on typical architetcures */ 1038/* giving it a reasonably high chance of working on typical architectures */
471static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1039static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
472#endif 1040#endif
473 1041
474#if EV_USE_MONOTONIC 1042#if EV_USE_MONOTONIC
475static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1043static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
476#endif 1044#endif
477 1045
1046#ifndef EV_FD_TO_WIN32_HANDLE
1047# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
1048#endif
1049#ifndef EV_WIN32_HANDLE_TO_FD
1050# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
1051#endif
1052#ifndef EV_WIN32_CLOSE_FD
1053# define EV_WIN32_CLOSE_FD(fd) close (fd)
1054#endif
1055
478#ifdef _WIN32 1056#ifdef _WIN32
479# include "ev_win32.c" 1057# include "ev_win32.c"
480#endif 1058#endif
481 1059
482/*****************************************************************************/ 1060/*****************************************************************************/
483 1061
1062/* define a suitable floor function (only used by periodics atm) */
1063
1064#if EV_USE_FLOOR
1065# include <math.h>
1066# define ev_floor(v) floor (v)
1067#else
1068
1069#include <float.h>
1070
1071/* a floor() replacement function, should be independent of ev_tstamp type */
1072static ev_tstamp noinline
1073ev_floor (ev_tstamp v)
1074{
1075 /* the choice of shift factor is not terribly important */
1076#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1077 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1078#else
1079 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1080#endif
1081
1082 /* argument too large for an unsigned long? */
1083 if (expect_false (v >= shift))
1084 {
1085 ev_tstamp f;
1086
1087 if (v == v - 1.)
1088 return v; /* very large number */
1089
1090 f = shift * ev_floor (v * (1. / shift));
1091 return f + ev_floor (v - f);
1092 }
1093
1094 /* special treatment for negative args? */
1095 if (expect_false (v < 0.))
1096 {
1097 ev_tstamp f = -ev_floor (-v);
1098
1099 return f - (f == v ? 0 : 1);
1100 }
1101
1102 /* fits into an unsigned long */
1103 return (unsigned long)v;
1104}
1105
1106#endif
1107
1108/*****************************************************************************/
1109
1110#ifdef __linux
1111# include <sys/utsname.h>
1112#endif
1113
1114static unsigned int noinline ecb_cold
1115ev_linux_version (void)
1116{
1117#ifdef __linux
1118 unsigned int v = 0;
1119 struct utsname buf;
1120 int i;
1121 char *p = buf.release;
1122
1123 if (uname (&buf))
1124 return 0;
1125
1126 for (i = 3+1; --i; )
1127 {
1128 unsigned int c = 0;
1129
1130 for (;;)
1131 {
1132 if (*p >= '0' && *p <= '9')
1133 c = c * 10 + *p++ - '0';
1134 else
1135 {
1136 p += *p == '.';
1137 break;
1138 }
1139 }
1140
1141 v = (v << 8) | c;
1142 }
1143
1144 return v;
1145#else
1146 return 0;
1147#endif
1148}
1149
1150/*****************************************************************************/
1151
1152#if EV_AVOID_STDIO
1153static void noinline ecb_cold
1154ev_printerr (const char *msg)
1155{
1156 write (STDERR_FILENO, msg, strlen (msg));
1157}
1158#endif
1159
484static void (*syserr_cb)(const char *msg); 1160static void (*syserr_cb)(const char *msg) EV_THROW;
485 1161
486void 1162void ecb_cold
487ev_set_syserr_cb (void (*cb)(const char *msg)) 1163ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
488{ 1164{
489 syserr_cb = cb; 1165 syserr_cb = cb;
490} 1166}
491 1167
492static void noinline 1168static void noinline ecb_cold
493ev_syserr (const char *msg) 1169ev_syserr (const char *msg)
494{ 1170{
495 if (!msg) 1171 if (!msg)
496 msg = "(libev) system error"; 1172 msg = "(libev) system error";
497 1173
498 if (syserr_cb) 1174 if (syserr_cb)
499 syserr_cb (msg); 1175 syserr_cb (msg);
500 else 1176 else
501 { 1177 {
1178#if EV_AVOID_STDIO
1179 ev_printerr (msg);
1180 ev_printerr (": ");
1181 ev_printerr (strerror (errno));
1182 ev_printerr ("\n");
1183#else
502 perror (msg); 1184 perror (msg);
1185#endif
503 abort (); 1186 abort ();
504 } 1187 }
505} 1188}
506 1189
507static void * 1190static void *
508ev_realloc_emul (void *ptr, long size) 1191ev_realloc_emul (void *ptr, long size) EV_THROW
509{ 1192{
1193#if __GLIBC__
1194 return realloc (ptr, size);
1195#else
510 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
511 * implement realloc (x, 0) (as required by both ansi c-98 and 1197 * implement realloc (x, 0) (as required by both ansi c-89 and
512 * the single unix specification, so work around them here. 1198 * the single unix specification, so work around them here.
513 */ 1199 */
514 1200
515 if (size) 1201 if (size)
516 return realloc (ptr, size); 1202 return realloc (ptr, size);
517 1203
518 free (ptr); 1204 free (ptr);
519 return 0; 1205 return 0;
1206#endif
520} 1207}
521 1208
522static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1209static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
523 1210
524void 1211void ecb_cold
525ev_set_allocator (void *(*cb)(void *ptr, long size)) 1212ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
526{ 1213{
527 alloc = cb; 1214 alloc = cb;
528} 1215}
529 1216
530inline_speed void * 1217inline_speed void *
… …
532{ 1219{
533 ptr = alloc (ptr, size); 1220 ptr = alloc (ptr, size);
534 1221
535 if (!ptr && size) 1222 if (!ptr && size)
536 { 1223 {
1224#if EV_AVOID_STDIO
1225 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1226#else
537 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1227 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1228#endif
538 abort (); 1229 abort ();
539 } 1230 }
540 1231
541 return ptr; 1232 return ptr;
542} 1233}
… …
558 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1249 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
559 unsigned char unused; 1250 unsigned char unused;
560#if EV_USE_EPOLL 1251#if EV_USE_EPOLL
561 unsigned int egen; /* generation counter to counter epoll bugs */ 1252 unsigned int egen; /* generation counter to counter epoll bugs */
562#endif 1253#endif
563#if EV_SELECT_IS_WINSOCKET 1254#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
564 SOCKET handle; 1255 SOCKET handle;
1256#endif
1257#if EV_USE_IOCP
1258 OVERLAPPED or, ow;
565#endif 1259#endif
566} ANFD; 1260} ANFD;
567 1261
568/* stores the pending event set for a given watcher */ 1262/* stores the pending event set for a given watcher */
569typedef struct 1263typedef struct
… …
611 #undef VAR 1305 #undef VAR
612 }; 1306 };
613 #include "ev_wrap.h" 1307 #include "ev_wrap.h"
614 1308
615 static struct ev_loop default_loop_struct; 1309 static struct ev_loop default_loop_struct;
616 struct ev_loop *ev_default_loop_ptr; 1310 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
617 1311
618#else 1312#else
619 1313
620 ev_tstamp ev_rt_now; 1314 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
621 #define VAR(name,decl) static decl; 1315 #define VAR(name,decl) static decl;
622 #include "ev_vars.h" 1316 #include "ev_vars.h"
623 #undef VAR 1317 #undef VAR
624 1318
625 static int ev_default_loop_ptr; 1319 static int ev_default_loop_ptr;
626 1320
627#endif 1321#endif
628 1322
629#if EV_MINIMAL < 2 1323#if EV_FEATURE_API
630# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1324# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
631# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1325# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
632# define EV_INVOKE_PENDING invoke_cb (EV_A) 1326# define EV_INVOKE_PENDING invoke_cb (EV_A)
633#else 1327#else
634# define EV_RELEASE_CB (void)0 1328# define EV_RELEASE_CB (void)0
635# define EV_ACQUIRE_CB (void)0 1329# define EV_ACQUIRE_CB (void)0
636# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1330# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
637#endif 1331#endif
638 1332
639#define EVUNLOOP_RECURSE 0x80 1333#define EVBREAK_RECURSE 0x80
640 1334
641/*****************************************************************************/ 1335/*****************************************************************************/
642 1336
643#ifndef EV_HAVE_EV_TIME 1337#ifndef EV_HAVE_EV_TIME
644ev_tstamp 1338ev_tstamp
645ev_time (void) 1339ev_time (void) EV_THROW
646{ 1340{
647#if EV_USE_REALTIME 1341#if EV_USE_REALTIME
648 if (expect_true (have_realtime)) 1342 if (expect_true (have_realtime))
649 { 1343 {
650 struct timespec ts; 1344 struct timespec ts;
… …
674 return ev_time (); 1368 return ev_time ();
675} 1369}
676 1370
677#if EV_MULTIPLICITY 1371#if EV_MULTIPLICITY
678ev_tstamp 1372ev_tstamp
679ev_now (EV_P) 1373ev_now (EV_P) EV_THROW
680{ 1374{
681 return ev_rt_now; 1375 return ev_rt_now;
682} 1376}
683#endif 1377#endif
684 1378
685void 1379void
686ev_sleep (ev_tstamp delay) 1380ev_sleep (ev_tstamp delay) EV_THROW
687{ 1381{
688 if (delay > 0.) 1382 if (delay > 0.)
689 { 1383 {
690#if EV_USE_NANOSLEEP 1384#if EV_USE_NANOSLEEP
691 struct timespec ts; 1385 struct timespec ts;
692 1386
693 ts.tv_sec = (time_t)delay; 1387 EV_TS_SET (ts, delay);
694 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
695
696 nanosleep (&ts, 0); 1388 nanosleep (&ts, 0);
697#elif defined(_WIN32) 1389#elif defined _WIN32
698 Sleep ((unsigned long)(delay * 1e3)); 1390 Sleep ((unsigned long)(delay * 1e3));
699#else 1391#else
700 struct timeval tv; 1392 struct timeval tv;
701 1393
702 tv.tv_sec = (time_t)delay;
703 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
704
705 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1394 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
706 /* something not guaranteed by newer posix versions, but guaranteed */ 1395 /* something not guaranteed by newer posix versions, but guaranteed */
707 /* by older ones */ 1396 /* by older ones */
1397 EV_TV_SET (tv, delay);
708 select (0, 0, 0, 0, &tv); 1398 select (0, 0, 0, 0, &tv);
709#endif 1399#endif
710 } 1400 }
711} 1401}
712 1402
713/*****************************************************************************/ 1403/*****************************************************************************/
714 1404
715#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1405#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
716 1406
717/* find a suitable new size for the given array, */ 1407/* find a suitable new size for the given array, */
718/* hopefully by rounding to a ncie-to-malloc size */ 1408/* hopefully by rounding to a nice-to-malloc size */
719inline_size int 1409inline_size int
720array_nextsize (int elem, int cur, int cnt) 1410array_nextsize (int elem, int cur, int cnt)
721{ 1411{
722 int ncur = cur + 1; 1412 int ncur = cur + 1;
723 1413
724 do 1414 do
725 ncur <<= 1; 1415 ncur <<= 1;
726 while (cnt > ncur); 1416 while (cnt > ncur);
727 1417
728 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1418 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
729 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1419 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
730 { 1420 {
731 ncur *= elem; 1421 ncur *= elem;
732 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1422 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
733 ncur = ncur - sizeof (void *) * 4; 1423 ncur = ncur - sizeof (void *) * 4;
… …
735 } 1425 }
736 1426
737 return ncur; 1427 return ncur;
738} 1428}
739 1429
740static noinline void * 1430static void * noinline ecb_cold
741array_realloc (int elem, void *base, int *cur, int cnt) 1431array_realloc (int elem, void *base, int *cur, int cnt)
742{ 1432{
743 *cur = array_nextsize (elem, *cur, cnt); 1433 *cur = array_nextsize (elem, *cur, cnt);
744 return ev_realloc (base, elem * *cur); 1434 return ev_realloc (base, elem * *cur);
745} 1435}
… …
748 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1438 memset ((void *)(base), 0, sizeof (*(base)) * (count))
749 1439
750#define array_needsize(type,base,cur,cnt,init) \ 1440#define array_needsize(type,base,cur,cnt,init) \
751 if (expect_false ((cnt) > (cur))) \ 1441 if (expect_false ((cnt) > (cur))) \
752 { \ 1442 { \
753 int ocur_ = (cur); \ 1443 int ecb_unused ocur_ = (cur); \
754 (base) = (type *)array_realloc \ 1444 (base) = (type *)array_realloc \
755 (sizeof (type), (base), &(cur), (cnt)); \ 1445 (sizeof (type), (base), &(cur), (cnt)); \
756 init ((base) + (ocur_), (cur) - ocur_); \ 1446 init ((base) + (ocur_), (cur) - ocur_); \
757 } 1447 }
758 1448
… …
776pendingcb (EV_P_ ev_prepare *w, int revents) 1466pendingcb (EV_P_ ev_prepare *w, int revents)
777{ 1467{
778} 1468}
779 1469
780void noinline 1470void noinline
781ev_feed_event (EV_P_ void *w, int revents) 1471ev_feed_event (EV_P_ void *w, int revents) EV_THROW
782{ 1472{
783 W w_ = (W)w; 1473 W w_ = (W)w;
784 int pri = ABSPRI (w_); 1474 int pri = ABSPRI (w_);
785 1475
786 if (expect_false (w_->pending)) 1476 if (expect_false (w_->pending))
… …
790 w_->pending = ++pendingcnt [pri]; 1480 w_->pending = ++pendingcnt [pri];
791 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1481 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
792 pendings [pri][w_->pending - 1].w = w_; 1482 pendings [pri][w_->pending - 1].w = w_;
793 pendings [pri][w_->pending - 1].events = revents; 1483 pendings [pri][w_->pending - 1].events = revents;
794 } 1484 }
1485
1486 pendingpri = NUMPRI - 1;
795} 1487}
796 1488
797inline_speed void 1489inline_speed void
798feed_reverse (EV_P_ W w) 1490feed_reverse (EV_P_ W w)
799{ 1491{
… …
819} 1511}
820 1512
821/*****************************************************************************/ 1513/*****************************************************************************/
822 1514
823inline_speed void 1515inline_speed void
824fd_event_nc (EV_P_ int fd, int revents) 1516fd_event_nocheck (EV_P_ int fd, int revents)
825{ 1517{
826 ANFD *anfd = anfds + fd; 1518 ANFD *anfd = anfds + fd;
827 ev_io *w; 1519 ev_io *w;
828 1520
829 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1521 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
841fd_event (EV_P_ int fd, int revents) 1533fd_event (EV_P_ int fd, int revents)
842{ 1534{
843 ANFD *anfd = anfds + fd; 1535 ANFD *anfd = anfds + fd;
844 1536
845 if (expect_true (!anfd->reify)) 1537 if (expect_true (!anfd->reify))
846 fd_event_nc (EV_A_ fd, revents); 1538 fd_event_nocheck (EV_A_ fd, revents);
847} 1539}
848 1540
849void 1541void
850ev_feed_fd_event (EV_P_ int fd, int revents) 1542ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
851{ 1543{
852 if (fd >= 0 && fd < anfdmax) 1544 if (fd >= 0 && fd < anfdmax)
853 fd_event_nc (EV_A_ fd, revents); 1545 fd_event_nocheck (EV_A_ fd, revents);
854} 1546}
855 1547
856/* make sure the external fd watch events are in-sync */ 1548/* make sure the external fd watch events are in-sync */
857/* with the kernel/libev internal state */ 1549/* with the kernel/libev internal state */
858inline_size void 1550inline_size void
859fd_reify (EV_P) 1551fd_reify (EV_P)
860{ 1552{
861 int i; 1553 int i;
862 1554
1555#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1556 for (i = 0; i < fdchangecnt; ++i)
1557 {
1558 int fd = fdchanges [i];
1559 ANFD *anfd = anfds + fd;
1560
1561 if (anfd->reify & EV__IOFDSET && anfd->head)
1562 {
1563 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1564
1565 if (handle != anfd->handle)
1566 {
1567 unsigned long arg;
1568
1569 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1570
1571 /* handle changed, but fd didn't - we need to do it in two steps */
1572 backend_modify (EV_A_ fd, anfd->events, 0);
1573 anfd->events = 0;
1574 anfd->handle = handle;
1575 }
1576 }
1577 }
1578#endif
1579
863 for (i = 0; i < fdchangecnt; ++i) 1580 for (i = 0; i < fdchangecnt; ++i)
864 { 1581 {
865 int fd = fdchanges [i]; 1582 int fd = fdchanges [i];
866 ANFD *anfd = anfds + fd; 1583 ANFD *anfd = anfds + fd;
867 ev_io *w; 1584 ev_io *w;
868 1585
869 unsigned char events = 0; 1586 unsigned char o_events = anfd->events;
1587 unsigned char o_reify = anfd->reify;
870 1588
871 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1589 anfd->reify = 0;
872 events |= (unsigned char)w->events;
873 1590
874#if EV_SELECT_IS_WINSOCKET 1591 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
875 if (events)
876 { 1592 {
877 unsigned long arg; 1593 anfd->events = 0;
878 #ifdef EV_FD_TO_WIN32_HANDLE 1594
879 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1595 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
880 #else 1596 anfd->events |= (unsigned char)w->events;
881 anfd->handle = _get_osfhandle (fd); 1597
882 #endif 1598 if (o_events != anfd->events)
883 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1599 o_reify = EV__IOFDSET; /* actually |= */
884 } 1600 }
885#endif
886 1601
887 { 1602 if (o_reify & EV__IOFDSET)
888 unsigned char o_events = anfd->events;
889 unsigned char o_reify = anfd->reify;
890
891 anfd->reify = 0;
892 anfd->events = events;
893
894 if (o_events != events || o_reify & EV__IOFDSET)
895 backend_modify (EV_A_ fd, o_events, events); 1603 backend_modify (EV_A_ fd, o_events, anfd->events);
896 }
897 } 1604 }
898 1605
899 fdchangecnt = 0; 1606 fdchangecnt = 0;
900} 1607}
901 1608
… …
913 fdchanges [fdchangecnt - 1] = fd; 1620 fdchanges [fdchangecnt - 1] = fd;
914 } 1621 }
915} 1622}
916 1623
917/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1624/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
918inline_speed void 1625inline_speed void ecb_cold
919fd_kill (EV_P_ int fd) 1626fd_kill (EV_P_ int fd)
920{ 1627{
921 ev_io *w; 1628 ev_io *w;
922 1629
923 while ((w = (ev_io *)anfds [fd].head)) 1630 while ((w = (ev_io *)anfds [fd].head))
… …
925 ev_io_stop (EV_A_ w); 1632 ev_io_stop (EV_A_ w);
926 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1633 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
927 } 1634 }
928} 1635}
929 1636
930/* check whether the given fd is atcually valid, for error recovery */ 1637/* check whether the given fd is actually valid, for error recovery */
931inline_size int 1638inline_size int ecb_cold
932fd_valid (int fd) 1639fd_valid (int fd)
933{ 1640{
934#ifdef _WIN32 1641#ifdef _WIN32
935 return _get_osfhandle (fd) != -1; 1642 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
936#else 1643#else
937 return fcntl (fd, F_GETFD) != -1; 1644 return fcntl (fd, F_GETFD) != -1;
938#endif 1645#endif
939} 1646}
940 1647
941/* called on EBADF to verify fds */ 1648/* called on EBADF to verify fds */
942static void noinline 1649static void noinline ecb_cold
943fd_ebadf (EV_P) 1650fd_ebadf (EV_P)
944{ 1651{
945 int fd; 1652 int fd;
946 1653
947 for (fd = 0; fd < anfdmax; ++fd) 1654 for (fd = 0; fd < anfdmax; ++fd)
… …
949 if (!fd_valid (fd) && errno == EBADF) 1656 if (!fd_valid (fd) && errno == EBADF)
950 fd_kill (EV_A_ fd); 1657 fd_kill (EV_A_ fd);
951} 1658}
952 1659
953/* called on ENOMEM in select/poll to kill some fds and retry */ 1660/* called on ENOMEM in select/poll to kill some fds and retry */
954static void noinline 1661static void noinline ecb_cold
955fd_enomem (EV_P) 1662fd_enomem (EV_P)
956{ 1663{
957 int fd; 1664 int fd;
958 1665
959 for (fd = anfdmax; fd--; ) 1666 for (fd = anfdmax; fd--; )
960 if (anfds [fd].events) 1667 if (anfds [fd].events)
961 { 1668 {
962 fd_kill (EV_A_ fd); 1669 fd_kill (EV_A_ fd);
963 return; 1670 break;
964 } 1671 }
965} 1672}
966 1673
967/* usually called after fork if backend needs to re-arm all fds from scratch */ 1674/* usually called after fork if backend needs to re-arm all fds from scratch */
968static void noinline 1675static void noinline
… …
977 anfds [fd].emask = 0; 1684 anfds [fd].emask = 0;
978 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1685 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
979 } 1686 }
980} 1687}
981 1688
1689/* used to prepare libev internal fd's */
1690/* this is not fork-safe */
1691inline_speed void
1692fd_intern (int fd)
1693{
1694#ifdef _WIN32
1695 unsigned long arg = 1;
1696 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1697#else
1698 fcntl (fd, F_SETFD, FD_CLOEXEC);
1699 fcntl (fd, F_SETFL, O_NONBLOCK);
1700#endif
1701}
1702
982/*****************************************************************************/ 1703/*****************************************************************************/
983 1704
984/* 1705/*
985 * the heap functions want a real array index. array index 0 uis guaranteed to not 1706 * the heap functions want a real array index. array index 0 is guaranteed to not
986 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1707 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
987 * the branching factor of the d-tree. 1708 * the branching factor of the d-tree.
988 */ 1709 */
989 1710
990/* 1711/*
… …
1058 1779
1059 for (;;) 1780 for (;;)
1060 { 1781 {
1061 int c = k << 1; 1782 int c = k << 1;
1062 1783
1063 if (c > N + HEAP0 - 1) 1784 if (c >= N + HEAP0)
1064 break; 1785 break;
1065 1786
1066 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1787 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1067 ? 1 : 0; 1788 ? 1 : 0;
1068 1789
… …
1104 1825
1105/* move an element suitably so it is in a correct place */ 1826/* move an element suitably so it is in a correct place */
1106inline_size void 1827inline_size void
1107adjustheap (ANHE *heap, int N, int k) 1828adjustheap (ANHE *heap, int N, int k)
1108{ 1829{
1109 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1830 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1110 upheap (heap, k); 1831 upheap (heap, k);
1111 else 1832 else
1112 downheap (heap, N, k); 1833 downheap (heap, N, k);
1113} 1834}
1114 1835
… …
1127/*****************************************************************************/ 1848/*****************************************************************************/
1128 1849
1129/* associate signal watchers to a signal signal */ 1850/* associate signal watchers to a signal signal */
1130typedef struct 1851typedef struct
1131{ 1852{
1853 EV_ATOMIC_T pending;
1132#if EV_MULTIPLICITY 1854#if EV_MULTIPLICITY
1133 EV_P; 1855 EV_P;
1134#endif 1856#endif
1135 WL head; 1857 WL head;
1136 EV_ATOMIC_T gotsig;
1137} ANSIG; 1858} ANSIG;
1138 1859
1139static ANSIG signals [EV_NSIG - 1]; 1860static ANSIG signals [EV_NSIG - 1];
1140static EV_ATOMIC_T gotsig;
1141 1861
1142/*****************************************************************************/ 1862/*****************************************************************************/
1143 1863
1144/* used to prepare libev internal fd's */ 1864#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1145/* this is not fork-safe */
1146inline_speed void
1147fd_intern (int fd)
1148{
1149#ifdef _WIN32
1150 unsigned long arg = 1;
1151 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1152#else
1153 fcntl (fd, F_SETFD, FD_CLOEXEC);
1154 fcntl (fd, F_SETFL, O_NONBLOCK);
1155#endif
1156}
1157 1865
1158static void noinline 1866static void noinline ecb_cold
1159evpipe_init (EV_P) 1867evpipe_init (EV_P)
1160{ 1868{
1161 if (!ev_is_active (&pipe_w)) 1869 if (!ev_is_active (&pipe_w))
1162 { 1870 {
1163#if EV_USE_EVENTFD 1871# if EV_USE_EVENTFD
1164 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1872 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1165 if (evfd < 0 && errno == EINVAL) 1873 if (evfd < 0 && errno == EINVAL)
1166 evfd = eventfd (0, 0); 1874 evfd = eventfd (0, 0);
1167 1875
1168 if (evfd >= 0) 1876 if (evfd >= 0)
… …
1170 evpipe [0] = -1; 1878 evpipe [0] = -1;
1171 fd_intern (evfd); /* doing it twice doesn't hurt */ 1879 fd_intern (evfd); /* doing it twice doesn't hurt */
1172 ev_io_set (&pipe_w, evfd, EV_READ); 1880 ev_io_set (&pipe_w, evfd, EV_READ);
1173 } 1881 }
1174 else 1882 else
1175#endif 1883# endif
1176 { 1884 {
1177 while (pipe (evpipe)) 1885 while (pipe (evpipe))
1178 ev_syserr ("(libev) error creating signal/async pipe"); 1886 ev_syserr ("(libev) error creating signal/async pipe");
1179 1887
1180 fd_intern (evpipe [0]); 1888 fd_intern (evpipe [0]);
… …
1185 ev_io_start (EV_A_ &pipe_w); 1893 ev_io_start (EV_A_ &pipe_w);
1186 ev_unref (EV_A); /* watcher should not keep loop alive */ 1894 ev_unref (EV_A); /* watcher should not keep loop alive */
1187 } 1895 }
1188} 1896}
1189 1897
1190inline_size void 1898inline_speed void
1191evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1899evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1192{ 1900{
1193 if (!*flag) 1901 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1902
1903 if (expect_true (*flag))
1904 return;
1905
1906 *flag = 1;
1907 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1908
1909 pipe_write_skipped = 1;
1910
1911 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1912
1913 if (pipe_write_wanted)
1194 { 1914 {
1915 int old_errno;
1916
1917 pipe_write_skipped = 0;
1918 ECB_MEMORY_FENCE_RELEASE;
1919
1195 int old_errno = errno; /* save errno because write might clobber it */ 1920 old_errno = errno; /* save errno because write will clobber it */
1196
1197 *flag = 1;
1198 1921
1199#if EV_USE_EVENTFD 1922#if EV_USE_EVENTFD
1200 if (evfd >= 0) 1923 if (evfd >= 0)
1201 { 1924 {
1202 uint64_t counter = 1; 1925 uint64_t counter = 1;
1203 write (evfd, &counter, sizeof (uint64_t)); 1926 write (evfd, &counter, sizeof (uint64_t));
1204 } 1927 }
1205 else 1928 else
1206#endif 1929#endif
1930 {
1931#ifdef _WIN32
1932 WSABUF buf;
1933 DWORD sent;
1934 buf.buf = &buf;
1935 buf.len = 1;
1936 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1937#else
1207 write (evpipe [1], &old_errno, 1); 1938 write (evpipe [1], &(evpipe [1]), 1);
1939#endif
1940 }
1208 1941
1209 errno = old_errno; 1942 errno = old_errno;
1210 } 1943 }
1211} 1944}
1212 1945
1213/* called whenever the libev signal pipe */ 1946/* called whenever the libev signal pipe */
1214/* got some events (signal, async) */ 1947/* got some events (signal, async) */
1215static void 1948static void
1216pipecb (EV_P_ ev_io *iow, int revents) 1949pipecb (EV_P_ ev_io *iow, int revents)
1217{ 1950{
1951 int i;
1952
1953 if (revents & EV_READ)
1954 {
1218#if EV_USE_EVENTFD 1955#if EV_USE_EVENTFD
1219 if (evfd >= 0) 1956 if (evfd >= 0)
1220 { 1957 {
1221 uint64_t counter; 1958 uint64_t counter;
1222 read (evfd, &counter, sizeof (uint64_t)); 1959 read (evfd, &counter, sizeof (uint64_t));
1223 } 1960 }
1224 else 1961 else
1225#endif 1962#endif
1226 { 1963 {
1227 char dummy; 1964 char dummy[4];
1965#ifdef _WIN32
1966 WSABUF buf;
1967 DWORD recvd;
1968 DWORD flags = 0;
1969 buf.buf = dummy;
1970 buf.len = sizeof (dummy);
1971 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1972#else
1228 read (evpipe [0], &dummy, 1); 1973 read (evpipe [0], &dummy, sizeof (dummy));
1974#endif
1975 }
1976 }
1977
1978 pipe_write_skipped = 0;
1979
1980 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1981
1982#if EV_SIGNAL_ENABLE
1983 if (sig_pending)
1229 } 1984 {
1985 sig_pending = 0;
1230 1986
1231 if (gotsig && ev_is_default_loop (EV_A)) 1987 ECB_MEMORY_FENCE;
1232 {
1233 int signum;
1234 gotsig = 0;
1235 1988
1236 for (signum = EV_NSIG - 1; signum--; ) 1989 for (i = EV_NSIG - 1; i--; )
1237 if (signals [signum].gotsig) 1990 if (expect_false (signals [i].pending))
1238 ev_feed_signal_event (EV_A_ signum + 1); 1991 ev_feed_signal_event (EV_A_ i + 1);
1239 } 1992 }
1993#endif
1240 1994
1241#if EV_ASYNC_ENABLE 1995#if EV_ASYNC_ENABLE
1242 if (gotasync) 1996 if (async_pending)
1243 { 1997 {
1244 int i; 1998 async_pending = 0;
1245 gotasync = 0; 1999
2000 ECB_MEMORY_FENCE;
1246 2001
1247 for (i = asynccnt; i--; ) 2002 for (i = asynccnt; i--; )
1248 if (asyncs [i]->sent) 2003 if (asyncs [i]->sent)
1249 { 2004 {
1250 asyncs [i]->sent = 0; 2005 asyncs [i]->sent = 0;
2006 ECB_MEMORY_FENCE_RELEASE;
1251 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2007 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1252 } 2008 }
1253 } 2009 }
1254#endif 2010#endif
1255} 2011}
1256 2012
1257/*****************************************************************************/ 2013/*****************************************************************************/
1258 2014
2015void
2016ev_feed_signal (int signum) EV_THROW
2017{
2018#if EV_MULTIPLICITY
2019 EV_P = signals [signum - 1].loop;
2020
2021 if (!EV_A)
2022 return;
2023#endif
2024
2025 if (!ev_active (&pipe_w))
2026 return;
2027
2028 signals [signum - 1].pending = 1;
2029 evpipe_write (EV_A_ &sig_pending);
2030}
2031
1259static void 2032static void
1260ev_sighandler (int signum) 2033ev_sighandler (int signum)
1261{ 2034{
2035#ifdef _WIN32
2036 signal (signum, ev_sighandler);
2037#endif
2038
2039 ev_feed_signal (signum);
2040}
2041
2042void noinline
2043ev_feed_signal_event (EV_P_ int signum) EV_THROW
2044{
2045 WL w;
2046
2047 if (expect_false (signum <= 0 || signum > EV_NSIG))
2048 return;
2049
2050 --signum;
2051
1262#if EV_MULTIPLICITY 2052#if EV_MULTIPLICITY
1263 EV_P = signals [signum - 1].loop; 2053 /* it is permissible to try to feed a signal to the wrong loop */
1264#endif 2054 /* or, likely more useful, feeding a signal nobody is waiting for */
1265 2055
1266#if _WIN32 2056 if (expect_false (signals [signum].loop != EV_A))
1267 signal (signum, ev_sighandler);
1268#endif
1269
1270 signals [signum - 1].gotsig = 1;
1271 evpipe_write (EV_A_ &gotsig);
1272}
1273
1274void noinline
1275ev_feed_signal_event (EV_P_ int signum)
1276{
1277 WL w;
1278
1279#if EV_MULTIPLICITY
1280 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1281#endif
1282
1283 if (signum <= 0 || signum > EV_NSIG)
1284 return; 2057 return;
2058#endif
1285 2059
1286 --signum;
1287
1288 signals [signum].gotsig = 0; 2060 signals [signum].pending = 0;
2061 ECB_MEMORY_FENCE_RELEASE;
1289 2062
1290 for (w = signals [signum].head; w; w = w->next) 2063 for (w = signals [signum].head; w; w = w->next)
1291 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2064 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1292} 2065}
1293 2066
… …
1309 break; 2082 break;
1310 } 2083 }
1311} 2084}
1312#endif 2085#endif
1313 2086
2087#endif
2088
1314/*****************************************************************************/ 2089/*****************************************************************************/
1315 2090
2091#if EV_CHILD_ENABLE
1316static WL childs [EV_PID_HASHSIZE]; 2092static WL childs [EV_PID_HASHSIZE];
1317
1318#ifndef _WIN32
1319 2093
1320static ev_signal childev; 2094static ev_signal childev;
1321 2095
1322#ifndef WIFCONTINUED 2096#ifndef WIFCONTINUED
1323# define WIFCONTINUED(status) 0 2097# define WIFCONTINUED(status) 0
… …
1328child_reap (EV_P_ int chain, int pid, int status) 2102child_reap (EV_P_ int chain, int pid, int status)
1329{ 2103{
1330 ev_child *w; 2104 ev_child *w;
1331 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2105 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1332 2106
1333 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2107 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1334 { 2108 {
1335 if ((w->pid == pid || !w->pid) 2109 if ((w->pid == pid || !w->pid)
1336 && (!traced || (w->flags & 1))) 2110 && (!traced || (w->flags & 1)))
1337 { 2111 {
1338 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2112 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1363 /* make sure we are called again until all children have been reaped */ 2137 /* make sure we are called again until all children have been reaped */
1364 /* we need to do it this way so that the callback gets called before we continue */ 2138 /* we need to do it this way so that the callback gets called before we continue */
1365 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2139 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1366 2140
1367 child_reap (EV_A_ pid, pid, status); 2141 child_reap (EV_A_ pid, pid, status);
1368 if (EV_PID_HASHSIZE > 1) 2142 if ((EV_PID_HASHSIZE) > 1)
1369 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2143 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1370} 2144}
1371 2145
1372#endif 2146#endif
1373 2147
1374/*****************************************************************************/ 2148/*****************************************************************************/
1375 2149
2150#if EV_USE_IOCP
2151# include "ev_iocp.c"
2152#endif
1376#if EV_USE_PORT 2153#if EV_USE_PORT
1377# include "ev_port.c" 2154# include "ev_port.c"
1378#endif 2155#endif
1379#if EV_USE_KQUEUE 2156#if EV_USE_KQUEUE
1380# include "ev_kqueue.c" 2157# include "ev_kqueue.c"
… …
1387#endif 2164#endif
1388#if EV_USE_SELECT 2165#if EV_USE_SELECT
1389# include "ev_select.c" 2166# include "ev_select.c"
1390#endif 2167#endif
1391 2168
1392int 2169int ecb_cold
1393ev_version_major (void) 2170ev_version_major (void) EV_THROW
1394{ 2171{
1395 return EV_VERSION_MAJOR; 2172 return EV_VERSION_MAJOR;
1396} 2173}
1397 2174
1398int 2175int ecb_cold
1399ev_version_minor (void) 2176ev_version_minor (void) EV_THROW
1400{ 2177{
1401 return EV_VERSION_MINOR; 2178 return EV_VERSION_MINOR;
1402} 2179}
1403 2180
1404/* return true if we are running with elevated privileges and should ignore env variables */ 2181/* return true if we are running with elevated privileges and should ignore env variables */
1405int inline_size 2182int inline_size ecb_cold
1406enable_secure (void) 2183enable_secure (void)
1407{ 2184{
1408#ifdef _WIN32 2185#ifdef _WIN32
1409 return 0; 2186 return 0;
1410#else 2187#else
1411 return getuid () != geteuid () 2188 return getuid () != geteuid ()
1412 || getgid () != getegid (); 2189 || getgid () != getegid ();
1413#endif 2190#endif
1414} 2191}
1415 2192
1416unsigned int 2193unsigned int ecb_cold
1417ev_supported_backends (void) 2194ev_supported_backends (void) EV_THROW
1418{ 2195{
1419 unsigned int flags = 0; 2196 unsigned int flags = 0;
1420 2197
1421 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2198 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1422 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2199 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1425 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2202 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1426 2203
1427 return flags; 2204 return flags;
1428} 2205}
1429 2206
1430unsigned int 2207unsigned int ecb_cold
1431ev_recommended_backends (void) 2208ev_recommended_backends (void) EV_THROW
1432{ 2209{
1433 unsigned int flags = ev_supported_backends (); 2210 unsigned int flags = ev_supported_backends ();
1434 2211
1435#ifndef __NetBSD__ 2212#ifndef __NetBSD__
1436 /* kqueue is borked on everything but netbsd apparently */ 2213 /* kqueue is borked on everything but netbsd apparently */
… …
1440#ifdef __APPLE__ 2217#ifdef __APPLE__
1441 /* only select works correctly on that "unix-certified" platform */ 2218 /* only select works correctly on that "unix-certified" platform */
1442 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2219 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1443 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2220 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1444#endif 2221#endif
2222#ifdef __FreeBSD__
2223 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2224#endif
1445 2225
1446 return flags; 2226 return flags;
1447} 2227}
1448 2228
2229unsigned int ecb_cold
2230ev_embeddable_backends (void) EV_THROW
2231{
2232 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2233
2234 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2235 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2236 flags &= ~EVBACKEND_EPOLL;
2237
2238 return flags;
2239}
2240
1449unsigned int 2241unsigned int
1450ev_embeddable_backends (void) 2242ev_backend (EV_P) EV_THROW
1451{ 2243{
1452 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2244 return backend;
1453
1454 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1455 /* please fix it and tell me how to detect the fix */
1456 flags &= ~EVBACKEND_EPOLL;
1457
1458 return flags;
1459} 2245}
1460 2246
2247#if EV_FEATURE_API
1461unsigned int 2248unsigned int
1462ev_backend (EV_P) 2249ev_iteration (EV_P) EV_THROW
1463{ 2250{
1464 return backend; 2251 return loop_count;
1465} 2252}
1466 2253
1467#if EV_MINIMAL < 2
1468unsigned int 2254unsigned int
1469ev_loop_count (EV_P) 2255ev_depth (EV_P) EV_THROW
1470{
1471 return loop_count;
1472}
1473
1474unsigned int
1475ev_loop_depth (EV_P)
1476{ 2256{
1477 return loop_depth; 2257 return loop_depth;
1478} 2258}
1479 2259
1480void 2260void
1481ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2261ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1482{ 2262{
1483 io_blocktime = interval; 2263 io_blocktime = interval;
1484} 2264}
1485 2265
1486void 2266void
1487ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2267ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1488{ 2268{
1489 timeout_blocktime = interval; 2269 timeout_blocktime = interval;
1490} 2270}
1491 2271
1492void 2272void
1493ev_set_userdata (EV_P_ void *data) 2273ev_set_userdata (EV_P_ void *data) EV_THROW
1494{ 2274{
1495 userdata = data; 2275 userdata = data;
1496} 2276}
1497 2277
1498void * 2278void *
1499ev_userdata (EV_P) 2279ev_userdata (EV_P) EV_THROW
1500{ 2280{
1501 return userdata; 2281 return userdata;
1502} 2282}
1503 2283
2284void
1504void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2285ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1505{ 2286{
1506 invoke_cb = invoke_pending_cb; 2287 invoke_cb = invoke_pending_cb;
1507} 2288}
1508 2289
2290void
1509void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2291ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1510{ 2292{
1511 release_cb = release; 2293 release_cb = release;
1512 acquire_cb = acquire; 2294 acquire_cb = acquire;
1513} 2295}
1514#endif 2296#endif
1515 2297
1516/* initialise a loop structure, must be zero-initialised */ 2298/* initialise a loop structure, must be zero-initialised */
1517static void noinline 2299static void noinline ecb_cold
1518loop_init (EV_P_ unsigned int flags) 2300loop_init (EV_P_ unsigned int flags) EV_THROW
1519{ 2301{
1520 if (!backend) 2302 if (!backend)
1521 { 2303 {
2304 origflags = flags;
2305
1522#if EV_USE_REALTIME 2306#if EV_USE_REALTIME
1523 if (!have_realtime) 2307 if (!have_realtime)
1524 { 2308 {
1525 struct timespec ts; 2309 struct timespec ts;
1526 2310
… …
1548 if (!(flags & EVFLAG_NOENV) 2332 if (!(flags & EVFLAG_NOENV)
1549 && !enable_secure () 2333 && !enable_secure ()
1550 && getenv ("LIBEV_FLAGS")) 2334 && getenv ("LIBEV_FLAGS"))
1551 flags = atoi (getenv ("LIBEV_FLAGS")); 2335 flags = atoi (getenv ("LIBEV_FLAGS"));
1552 2336
1553 ev_rt_now = ev_time (); 2337 ev_rt_now = ev_time ();
1554 mn_now = get_clock (); 2338 mn_now = get_clock ();
1555 now_floor = mn_now; 2339 now_floor = mn_now;
1556 rtmn_diff = ev_rt_now - mn_now; 2340 rtmn_diff = ev_rt_now - mn_now;
1557#if EV_MINIMAL < 2 2341#if EV_FEATURE_API
1558 invoke_cb = ev_invoke_pending; 2342 invoke_cb = ev_invoke_pending;
1559#endif 2343#endif
1560 2344
1561 io_blocktime = 0.; 2345 io_blocktime = 0.;
1562 timeout_blocktime = 0.; 2346 timeout_blocktime = 0.;
1563 backend = 0; 2347 backend = 0;
1564 backend_fd = -1; 2348 backend_fd = -1;
1565 gotasync = 0; 2349 sig_pending = 0;
2350#if EV_ASYNC_ENABLE
2351 async_pending = 0;
2352#endif
2353 pipe_write_skipped = 0;
2354 pipe_write_wanted = 0;
1566#if EV_USE_INOTIFY 2355#if EV_USE_INOTIFY
1567 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2356 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1568#endif 2357#endif
1569#if EV_USE_SIGNALFD 2358#if EV_USE_SIGNALFD
1570 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; 2359 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1571#endif 2360#endif
1572 2361
1573 if (!(flags & 0x0000ffffU)) 2362 if (!(flags & EVBACKEND_MASK))
1574 flags |= ev_recommended_backends (); 2363 flags |= ev_recommended_backends ();
1575 2364
2365#if EV_USE_IOCP
2366 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2367#endif
1576#if EV_USE_PORT 2368#if EV_USE_PORT
1577 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2369 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1578#endif 2370#endif
1579#if EV_USE_KQUEUE 2371#if EV_USE_KQUEUE
1580 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2372 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1589 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2381 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1590#endif 2382#endif
1591 2383
1592 ev_prepare_init (&pending_w, pendingcb); 2384 ev_prepare_init (&pending_w, pendingcb);
1593 2385
2386#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1594 ev_init (&pipe_w, pipecb); 2387 ev_init (&pipe_w, pipecb);
1595 ev_set_priority (&pipe_w, EV_MAXPRI); 2388 ev_set_priority (&pipe_w, EV_MAXPRI);
2389#endif
1596 } 2390 }
1597} 2391}
1598 2392
1599/* free up a loop structure */ 2393/* free up a loop structure */
1600static void noinline 2394void ecb_cold
1601loop_destroy (EV_P) 2395ev_loop_destroy (EV_P)
1602{ 2396{
1603 int i; 2397 int i;
2398
2399#if EV_MULTIPLICITY
2400 /* mimic free (0) */
2401 if (!EV_A)
2402 return;
2403#endif
2404
2405#if EV_CLEANUP_ENABLE
2406 /* queue cleanup watchers (and execute them) */
2407 if (expect_false (cleanupcnt))
2408 {
2409 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2410 EV_INVOKE_PENDING;
2411 }
2412#endif
2413
2414#if EV_CHILD_ENABLE
2415 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2416 {
2417 ev_ref (EV_A); /* child watcher */
2418 ev_signal_stop (EV_A_ &childev);
2419 }
2420#endif
1604 2421
1605 if (ev_is_active (&pipe_w)) 2422 if (ev_is_active (&pipe_w))
1606 { 2423 {
1607 /*ev_ref (EV_A);*/ 2424 /*ev_ref (EV_A);*/
1608 /*ev_io_stop (EV_A_ &pipe_w);*/ 2425 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1612 close (evfd); 2429 close (evfd);
1613#endif 2430#endif
1614 2431
1615 if (evpipe [0] >= 0) 2432 if (evpipe [0] >= 0)
1616 { 2433 {
1617 close (evpipe [0]); 2434 EV_WIN32_CLOSE_FD (evpipe [0]);
1618 close (evpipe [1]); 2435 EV_WIN32_CLOSE_FD (evpipe [1]);
1619 } 2436 }
1620 } 2437 }
1621 2438
1622#if EV_USE_SIGNALFD 2439#if EV_USE_SIGNALFD
1623 if (ev_is_active (&sigfd_w)) 2440 if (ev_is_active (&sigfd_w))
1624 {
1625 /*ev_ref (EV_A);*/
1626 /*ev_io_stop (EV_A_ &sigfd_w);*/
1627
1628 close (sigfd); 2441 close (sigfd);
1629 }
1630#endif 2442#endif
1631 2443
1632#if EV_USE_INOTIFY 2444#if EV_USE_INOTIFY
1633 if (fs_fd >= 0) 2445 if (fs_fd >= 0)
1634 close (fs_fd); 2446 close (fs_fd);
1635#endif 2447#endif
1636 2448
1637 if (backend_fd >= 0) 2449 if (backend_fd >= 0)
1638 close (backend_fd); 2450 close (backend_fd);
1639 2451
2452#if EV_USE_IOCP
2453 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2454#endif
1640#if EV_USE_PORT 2455#if EV_USE_PORT
1641 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2456 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1642#endif 2457#endif
1643#if EV_USE_KQUEUE 2458#if EV_USE_KQUEUE
1644 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2459 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1671 array_free (periodic, EMPTY); 2486 array_free (periodic, EMPTY);
1672#endif 2487#endif
1673#if EV_FORK_ENABLE 2488#if EV_FORK_ENABLE
1674 array_free (fork, EMPTY); 2489 array_free (fork, EMPTY);
1675#endif 2490#endif
2491#if EV_CLEANUP_ENABLE
2492 array_free (cleanup, EMPTY);
2493#endif
1676 array_free (prepare, EMPTY); 2494 array_free (prepare, EMPTY);
1677 array_free (check, EMPTY); 2495 array_free (check, EMPTY);
1678#if EV_ASYNC_ENABLE 2496#if EV_ASYNC_ENABLE
1679 array_free (async, EMPTY); 2497 array_free (async, EMPTY);
1680#endif 2498#endif
1681 2499
1682 backend = 0; 2500 backend = 0;
2501
2502#if EV_MULTIPLICITY
2503 if (ev_is_default_loop (EV_A))
2504#endif
2505 ev_default_loop_ptr = 0;
2506#if EV_MULTIPLICITY
2507 else
2508 ev_free (EV_A);
2509#endif
1683} 2510}
1684 2511
1685#if EV_USE_INOTIFY 2512#if EV_USE_INOTIFY
1686inline_size void infy_fork (EV_P); 2513inline_size void infy_fork (EV_P);
1687#endif 2514#endif
… …
1702 infy_fork (EV_A); 2529 infy_fork (EV_A);
1703#endif 2530#endif
1704 2531
1705 if (ev_is_active (&pipe_w)) 2532 if (ev_is_active (&pipe_w))
1706 { 2533 {
1707 /* this "locks" the handlers against writing to the pipe */ 2534 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1708 /* while we modify the fd vars */
1709 gotsig = 1;
1710#if EV_ASYNC_ENABLE
1711 gotasync = 1;
1712#endif
1713 2535
1714 ev_ref (EV_A); 2536 ev_ref (EV_A);
1715 ev_io_stop (EV_A_ &pipe_w); 2537 ev_io_stop (EV_A_ &pipe_w);
1716 2538
1717#if EV_USE_EVENTFD 2539#if EV_USE_EVENTFD
… …
1719 close (evfd); 2541 close (evfd);
1720#endif 2542#endif
1721 2543
1722 if (evpipe [0] >= 0) 2544 if (evpipe [0] >= 0)
1723 { 2545 {
1724 close (evpipe [0]); 2546 EV_WIN32_CLOSE_FD (evpipe [0]);
1725 close (evpipe [1]); 2547 EV_WIN32_CLOSE_FD (evpipe [1]);
1726 } 2548 }
1727 2549
2550#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1728 evpipe_init (EV_A); 2551 evpipe_init (EV_A);
1729 /* now iterate over everything, in case we missed something */ 2552 /* now iterate over everything, in case we missed something */
1730 pipecb (EV_A_ &pipe_w, EV_READ); 2553 pipecb (EV_A_ &pipe_w, EV_READ);
2554#endif
1731 } 2555 }
1732 2556
1733 postfork = 0; 2557 postfork = 0;
1734} 2558}
1735 2559
1736#if EV_MULTIPLICITY 2560#if EV_MULTIPLICITY
1737 2561
1738struct ev_loop * 2562struct ev_loop * ecb_cold
1739ev_loop_new (unsigned int flags) 2563ev_loop_new (unsigned int flags) EV_THROW
1740{ 2564{
1741 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2565 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1742 2566
1743 memset (EV_A, 0, sizeof (struct ev_loop)); 2567 memset (EV_A, 0, sizeof (struct ev_loop));
1744 loop_init (EV_A_ flags); 2568 loop_init (EV_A_ flags);
1745 2569
1746 if (ev_backend (EV_A)) 2570 if (ev_backend (EV_A))
1747 return EV_A; 2571 return EV_A;
1748 2572
2573 ev_free (EV_A);
1749 return 0; 2574 return 0;
1750} 2575}
1751 2576
1752void
1753ev_loop_destroy (EV_P)
1754{
1755 loop_destroy (EV_A);
1756 ev_free (loop);
1757}
1758
1759void
1760ev_loop_fork (EV_P)
1761{
1762 postfork = 1; /* must be in line with ev_default_fork */
1763}
1764#endif /* multiplicity */ 2577#endif /* multiplicity */
1765 2578
1766#if EV_VERIFY 2579#if EV_VERIFY
1767static void noinline 2580static void noinline ecb_cold
1768verify_watcher (EV_P_ W w) 2581verify_watcher (EV_P_ W w)
1769{ 2582{
1770 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2583 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1771 2584
1772 if (w->pending) 2585 if (w->pending)
1773 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2586 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1774} 2587}
1775 2588
1776static void noinline 2589static void noinline ecb_cold
1777verify_heap (EV_P_ ANHE *heap, int N) 2590verify_heap (EV_P_ ANHE *heap, int N)
1778{ 2591{
1779 int i; 2592 int i;
1780 2593
1781 for (i = HEAP0; i < N + HEAP0; ++i) 2594 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1786 2599
1787 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2600 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1788 } 2601 }
1789} 2602}
1790 2603
1791static void noinline 2604static void noinline ecb_cold
1792array_verify (EV_P_ W *ws, int cnt) 2605array_verify (EV_P_ W *ws, int cnt)
1793{ 2606{
1794 while (cnt--) 2607 while (cnt--)
1795 { 2608 {
1796 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2609 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1797 verify_watcher (EV_A_ ws [cnt]); 2610 verify_watcher (EV_A_ ws [cnt]);
1798 } 2611 }
1799} 2612}
1800#endif 2613#endif
1801 2614
1802#if EV_MINIMAL < 2 2615#if EV_FEATURE_API
1803void 2616void ecb_cold
1804ev_loop_verify (EV_P) 2617ev_verify (EV_P) EV_THROW
1805{ 2618{
1806#if EV_VERIFY 2619#if EV_VERIFY
1807 int i; 2620 int i;
1808 WL w; 2621 WL w, w2;
1809 2622
1810 assert (activecnt >= -1); 2623 assert (activecnt >= -1);
1811 2624
1812 assert (fdchangemax >= fdchangecnt); 2625 assert (fdchangemax >= fdchangecnt);
1813 for (i = 0; i < fdchangecnt; ++i) 2626 for (i = 0; i < fdchangecnt; ++i)
1814 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2627 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1815 2628
1816 assert (anfdmax >= 0); 2629 assert (anfdmax >= 0);
1817 for (i = 0; i < anfdmax; ++i) 2630 for (i = 0; i < anfdmax; ++i)
2631 {
2632 int j = 0;
2633
1818 for (w = anfds [i].head; w; w = w->next) 2634 for (w = w2 = anfds [i].head; w; w = w->next)
1819 { 2635 {
1820 verify_watcher (EV_A_ (W)w); 2636 verify_watcher (EV_A_ (W)w);
2637
2638 if (j++ & 1)
2639 {
2640 assert (("libev: io watcher list contains a loop", w != w2));
2641 w2 = w2->next;
2642 }
2643
1821 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2644 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1822 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2645 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1823 } 2646 }
2647 }
1824 2648
1825 assert (timermax >= timercnt); 2649 assert (timermax >= timercnt);
1826 verify_heap (EV_A_ timers, timercnt); 2650 verify_heap (EV_A_ timers, timercnt);
1827 2651
1828#if EV_PERIODIC_ENABLE 2652#if EV_PERIODIC_ENABLE
… …
1843#if EV_FORK_ENABLE 2667#if EV_FORK_ENABLE
1844 assert (forkmax >= forkcnt); 2668 assert (forkmax >= forkcnt);
1845 array_verify (EV_A_ (W *)forks, forkcnt); 2669 array_verify (EV_A_ (W *)forks, forkcnt);
1846#endif 2670#endif
1847 2671
2672#if EV_CLEANUP_ENABLE
2673 assert (cleanupmax >= cleanupcnt);
2674 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2675#endif
2676
1848#if EV_ASYNC_ENABLE 2677#if EV_ASYNC_ENABLE
1849 assert (asyncmax >= asynccnt); 2678 assert (asyncmax >= asynccnt);
1850 array_verify (EV_A_ (W *)asyncs, asynccnt); 2679 array_verify (EV_A_ (W *)asyncs, asynccnt);
1851#endif 2680#endif
1852 2681
2682#if EV_PREPARE_ENABLE
1853 assert (preparemax >= preparecnt); 2683 assert (preparemax >= preparecnt);
1854 array_verify (EV_A_ (W *)prepares, preparecnt); 2684 array_verify (EV_A_ (W *)prepares, preparecnt);
2685#endif
1855 2686
2687#if EV_CHECK_ENABLE
1856 assert (checkmax >= checkcnt); 2688 assert (checkmax >= checkcnt);
1857 array_verify (EV_A_ (W *)checks, checkcnt); 2689 array_verify (EV_A_ (W *)checks, checkcnt);
2690#endif
1858 2691
1859# if 0 2692# if 0
2693#if EV_CHILD_ENABLE
1860 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2694 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1861 for (signum = EV_NSIG; signum--; ) if (signals [signum].gotsig) 2695 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2696#endif
1862# endif 2697# endif
1863#endif 2698#endif
1864} 2699}
1865#endif 2700#endif
1866 2701
1867#if EV_MULTIPLICITY 2702#if EV_MULTIPLICITY
1868struct ev_loop * 2703struct ev_loop * ecb_cold
1869ev_default_loop_init (unsigned int flags)
1870#else 2704#else
1871int 2705int
2706#endif
1872ev_default_loop (unsigned int flags) 2707ev_default_loop (unsigned int flags) EV_THROW
1873#endif
1874{ 2708{
1875 if (!ev_default_loop_ptr) 2709 if (!ev_default_loop_ptr)
1876 { 2710 {
1877#if EV_MULTIPLICITY 2711#if EV_MULTIPLICITY
1878 EV_P = ev_default_loop_ptr = &default_loop_struct; 2712 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1882 2716
1883 loop_init (EV_A_ flags); 2717 loop_init (EV_A_ flags);
1884 2718
1885 if (ev_backend (EV_A)) 2719 if (ev_backend (EV_A))
1886 { 2720 {
1887#ifndef _WIN32 2721#if EV_CHILD_ENABLE
1888 ev_signal_init (&childev, childcb, SIGCHLD); 2722 ev_signal_init (&childev, childcb, SIGCHLD);
1889 ev_set_priority (&childev, EV_MAXPRI); 2723 ev_set_priority (&childev, EV_MAXPRI);
1890 ev_signal_start (EV_A_ &childev); 2724 ev_signal_start (EV_A_ &childev);
1891 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2725 ev_unref (EV_A); /* child watcher should not keep loop alive */
1892#endif 2726#endif
… …
1897 2731
1898 return ev_default_loop_ptr; 2732 return ev_default_loop_ptr;
1899} 2733}
1900 2734
1901void 2735void
1902ev_default_destroy (void) 2736ev_loop_fork (EV_P) EV_THROW
1903{ 2737{
1904#if EV_MULTIPLICITY 2738 postfork = 1;
1905 EV_P = ev_default_loop_ptr;
1906#endif
1907
1908 ev_default_loop_ptr = 0;
1909
1910#ifndef _WIN32
1911 ev_ref (EV_A); /* child watcher */
1912 ev_signal_stop (EV_A_ &childev);
1913#endif
1914
1915 loop_destroy (EV_A);
1916}
1917
1918void
1919ev_default_fork (void)
1920{
1921#if EV_MULTIPLICITY
1922 EV_P = ev_default_loop_ptr;
1923#endif
1924
1925 postfork = 1; /* must be in line with ev_loop_fork */
1926} 2739}
1927 2740
1928/*****************************************************************************/ 2741/*****************************************************************************/
1929 2742
1930void 2743void
… …
1932{ 2745{
1933 EV_CB_INVOKE ((W)w, revents); 2746 EV_CB_INVOKE ((W)w, revents);
1934} 2747}
1935 2748
1936unsigned int 2749unsigned int
1937ev_pending_count (EV_P) 2750ev_pending_count (EV_P) EV_THROW
1938{ 2751{
1939 int pri; 2752 int pri;
1940 unsigned int count = 0; 2753 unsigned int count = 0;
1941 2754
1942 for (pri = NUMPRI; pri--; ) 2755 for (pri = NUMPRI; pri--; )
… …
1946} 2759}
1947 2760
1948void noinline 2761void noinline
1949ev_invoke_pending (EV_P) 2762ev_invoke_pending (EV_P)
1950{ 2763{
1951 int pri; 2764 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1952
1953 for (pri = NUMPRI; pri--; )
1954 while (pendingcnt [pri]) 2765 while (pendingcnt [pendingpri])
1955 { 2766 {
1956 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2767 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1957
1958 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1959 /* ^ this is no longer true, as pending_w could be here */
1960 2768
1961 p->w->pending = 0; 2769 p->w->pending = 0;
1962 EV_CB_INVOKE (p->w, p->events); 2770 EV_CB_INVOKE (p->w, p->events);
1963 EV_FREQUENT_CHECK; 2771 EV_FREQUENT_CHECK;
1964 } 2772 }
… …
2021 EV_FREQUENT_CHECK; 2829 EV_FREQUENT_CHECK;
2022 feed_reverse (EV_A_ (W)w); 2830 feed_reverse (EV_A_ (W)w);
2023 } 2831 }
2024 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2832 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2025 2833
2026 feed_reverse_done (EV_A_ EV_TIMEOUT); 2834 feed_reverse_done (EV_A_ EV_TIMER);
2027 } 2835 }
2028} 2836}
2029 2837
2030#if EV_PERIODIC_ENABLE 2838#if EV_PERIODIC_ENABLE
2839
2840static void noinline
2841periodic_recalc (EV_P_ ev_periodic *w)
2842{
2843 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2844 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2845
2846 /* the above almost always errs on the low side */
2847 while (at <= ev_rt_now)
2848 {
2849 ev_tstamp nat = at + w->interval;
2850
2851 /* when resolution fails us, we use ev_rt_now */
2852 if (expect_false (nat == at))
2853 {
2854 at = ev_rt_now;
2855 break;
2856 }
2857
2858 at = nat;
2859 }
2860
2861 ev_at (w) = at;
2862}
2863
2031/* make periodics pending */ 2864/* make periodics pending */
2032inline_size void 2865inline_size void
2033periodics_reify (EV_P) 2866periodics_reify (EV_P)
2034{ 2867{
2035 EV_FREQUENT_CHECK; 2868 EV_FREQUENT_CHECK;
2036 2869
2037 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2870 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2038 { 2871 {
2039 int feed_count = 0;
2040
2041 do 2872 do
2042 { 2873 {
2043 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2874 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2044 2875
2045 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2876 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2054 ANHE_at_cache (periodics [HEAP0]); 2885 ANHE_at_cache (periodics [HEAP0]);
2055 downheap (periodics, periodiccnt, HEAP0); 2886 downheap (periodics, periodiccnt, HEAP0);
2056 } 2887 }
2057 else if (w->interval) 2888 else if (w->interval)
2058 { 2889 {
2059 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2890 periodic_recalc (EV_A_ w);
2060 /* if next trigger time is not sufficiently in the future, put it there */
2061 /* this might happen because of floating point inexactness */
2062 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2063 {
2064 ev_at (w) += w->interval;
2065
2066 /* if interval is unreasonably low we might still have a time in the past */
2067 /* so correct this. this will make the periodic very inexact, but the user */
2068 /* has effectively asked to get triggered more often than possible */
2069 if (ev_at (w) < ev_rt_now)
2070 ev_at (w) = ev_rt_now;
2071 }
2072
2073 ANHE_at_cache (periodics [HEAP0]); 2891 ANHE_at_cache (periodics [HEAP0]);
2074 downheap (periodics, periodiccnt, HEAP0); 2892 downheap (periodics, periodiccnt, HEAP0);
2075 } 2893 }
2076 else 2894 else
2077 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2895 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2084 feed_reverse_done (EV_A_ EV_PERIODIC); 2902 feed_reverse_done (EV_A_ EV_PERIODIC);
2085 } 2903 }
2086} 2904}
2087 2905
2088/* simply recalculate all periodics */ 2906/* simply recalculate all periodics */
2089/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2907/* TODO: maybe ensure that at least one event happens when jumping forward? */
2090static void noinline 2908static void noinline ecb_cold
2091periodics_reschedule (EV_P) 2909periodics_reschedule (EV_P)
2092{ 2910{
2093 int i; 2911 int i;
2094 2912
2095 /* adjust periodics after time jump */ 2913 /* adjust periodics after time jump */
… …
2098 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2916 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2099 2917
2100 if (w->reschedule_cb) 2918 if (w->reschedule_cb)
2101 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2919 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2102 else if (w->interval) 2920 else if (w->interval)
2103 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2921 periodic_recalc (EV_A_ w);
2104 2922
2105 ANHE_at_cache (periodics [i]); 2923 ANHE_at_cache (periodics [i]);
2106 } 2924 }
2107 2925
2108 reheap (periodics, periodiccnt); 2926 reheap (periodics, periodiccnt);
2109} 2927}
2110#endif 2928#endif
2111 2929
2112/* adjust all timers by a given offset */ 2930/* adjust all timers by a given offset */
2113static void noinline 2931static void noinline ecb_cold
2114timers_reschedule (EV_P_ ev_tstamp adjust) 2932timers_reschedule (EV_P_ ev_tstamp adjust)
2115{ 2933{
2116 int i; 2934 int i;
2117 2935
2118 for (i = 0; i < timercnt; ++i) 2936 for (i = 0; i < timercnt; ++i)
… …
2122 ANHE_at_cache (*he); 2940 ANHE_at_cache (*he);
2123 } 2941 }
2124} 2942}
2125 2943
2126/* fetch new monotonic and realtime times from the kernel */ 2944/* fetch new monotonic and realtime times from the kernel */
2127/* also detetc if there was a timejump, and act accordingly */ 2945/* also detect if there was a timejump, and act accordingly */
2128inline_speed void 2946inline_speed void
2129time_update (EV_P_ ev_tstamp max_block) 2947time_update (EV_P_ ev_tstamp max_block)
2130{ 2948{
2131#if EV_USE_MONOTONIC 2949#if EV_USE_MONOTONIC
2132 if (expect_true (have_monotonic)) 2950 if (expect_true (have_monotonic))
… …
2155 * doesn't hurt either as we only do this on time-jumps or 2973 * doesn't hurt either as we only do this on time-jumps or
2156 * in the unlikely event of having been preempted here. 2974 * in the unlikely event of having been preempted here.
2157 */ 2975 */
2158 for (i = 4; --i; ) 2976 for (i = 4; --i; )
2159 { 2977 {
2978 ev_tstamp diff;
2160 rtmn_diff = ev_rt_now - mn_now; 2979 rtmn_diff = ev_rt_now - mn_now;
2161 2980
2981 diff = odiff - rtmn_diff;
2982
2162 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2983 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2163 return; /* all is well */ 2984 return; /* all is well */
2164 2985
2165 ev_rt_now = ev_time (); 2986 ev_rt_now = ev_time ();
2166 mn_now = get_clock (); 2987 mn_now = get_clock ();
2167 now_floor = mn_now; 2988 now_floor = mn_now;
… …
2189 3010
2190 mn_now = ev_rt_now; 3011 mn_now = ev_rt_now;
2191 } 3012 }
2192} 3013}
2193 3014
2194void 3015int
2195ev_loop (EV_P_ int flags) 3016ev_run (EV_P_ int flags)
2196{ 3017{
2197#if EV_MINIMAL < 2 3018#if EV_FEATURE_API
2198 ++loop_depth; 3019 ++loop_depth;
2199#endif 3020#endif
2200 3021
2201 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3022 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2202 3023
2203 loop_done = EVUNLOOP_CANCEL; 3024 loop_done = EVBREAK_CANCEL;
2204 3025
2205 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3026 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2206 3027
2207 do 3028 do
2208 { 3029 {
2209#if EV_VERIFY >= 2 3030#if EV_VERIFY >= 2
2210 ev_loop_verify (EV_A); 3031 ev_verify (EV_A);
2211#endif 3032#endif
2212 3033
2213#ifndef _WIN32 3034#ifndef _WIN32
2214 if (expect_false (curpid)) /* penalise the forking check even more */ 3035 if (expect_false (curpid)) /* penalise the forking check even more */
2215 if (expect_false (getpid () != curpid)) 3036 if (expect_false (getpid () != curpid))
… …
2227 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3048 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2228 EV_INVOKE_PENDING; 3049 EV_INVOKE_PENDING;
2229 } 3050 }
2230#endif 3051#endif
2231 3052
3053#if EV_PREPARE_ENABLE
2232 /* queue prepare watchers (and execute them) */ 3054 /* queue prepare watchers (and execute them) */
2233 if (expect_false (preparecnt)) 3055 if (expect_false (preparecnt))
2234 { 3056 {
2235 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3057 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2236 EV_INVOKE_PENDING; 3058 EV_INVOKE_PENDING;
2237 } 3059 }
3060#endif
2238 3061
2239 if (expect_false (loop_done)) 3062 if (expect_false (loop_done))
2240 break; 3063 break;
2241 3064
2242 /* we might have forked, so reify kernel state if necessary */ 3065 /* we might have forked, so reify kernel state if necessary */
… …
2249 /* calculate blocking time */ 3072 /* calculate blocking time */
2250 { 3073 {
2251 ev_tstamp waittime = 0.; 3074 ev_tstamp waittime = 0.;
2252 ev_tstamp sleeptime = 0.; 3075 ev_tstamp sleeptime = 0.;
2253 3076
3077 /* remember old timestamp for io_blocktime calculation */
3078 ev_tstamp prev_mn_now = mn_now;
3079
3080 /* update time to cancel out callback processing overhead */
3081 time_update (EV_A_ 1e100);
3082
3083 /* from now on, we want a pipe-wake-up */
3084 pipe_write_wanted = 1;
3085
3086 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3087
2254 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3088 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2255 { 3089 {
2256 /* remember old timestamp for io_blocktime calculation */
2257 ev_tstamp prev_mn_now = mn_now;
2258
2259 /* update time to cancel out callback processing overhead */
2260 time_update (EV_A_ 1e100);
2261
2262 waittime = MAX_BLOCKTIME; 3090 waittime = MAX_BLOCKTIME;
2263 3091
2264 if (timercnt) 3092 if (timercnt)
2265 { 3093 {
2266 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3094 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2267 if (waittime > to) waittime = to; 3095 if (waittime > to) waittime = to;
2268 } 3096 }
2269 3097
2270#if EV_PERIODIC_ENABLE 3098#if EV_PERIODIC_ENABLE
2271 if (periodiccnt) 3099 if (periodiccnt)
2272 { 3100 {
2273 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3101 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2274 if (waittime > to) waittime = to; 3102 if (waittime > to) waittime = to;
2275 } 3103 }
2276#endif 3104#endif
2277 3105
2278 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3106 /* don't let timeouts decrease the waittime below timeout_blocktime */
2279 if (expect_false (waittime < timeout_blocktime)) 3107 if (expect_false (waittime < timeout_blocktime))
2280 waittime = timeout_blocktime; 3108 waittime = timeout_blocktime;
3109
3110 /* at this point, we NEED to wait, so we have to ensure */
3111 /* to pass a minimum nonzero value to the backend */
3112 if (expect_false (waittime < backend_mintime))
3113 waittime = backend_mintime;
2281 3114
2282 /* extra check because io_blocktime is commonly 0 */ 3115 /* extra check because io_blocktime is commonly 0 */
2283 if (expect_false (io_blocktime)) 3116 if (expect_false (io_blocktime))
2284 { 3117 {
2285 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3118 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2286 3119
2287 if (sleeptime > waittime - backend_fudge) 3120 if (sleeptime > waittime - backend_mintime)
2288 sleeptime = waittime - backend_fudge; 3121 sleeptime = waittime - backend_mintime;
2289 3122
2290 if (expect_true (sleeptime > 0.)) 3123 if (expect_true (sleeptime > 0.))
2291 { 3124 {
2292 ev_sleep (sleeptime); 3125 ev_sleep (sleeptime);
2293 waittime -= sleeptime; 3126 waittime -= sleeptime;
2294 } 3127 }
2295 } 3128 }
2296 } 3129 }
2297 3130
2298#if EV_MINIMAL < 2 3131#if EV_FEATURE_API
2299 ++loop_count; 3132 ++loop_count;
2300#endif 3133#endif
2301 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3134 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2302 backend_poll (EV_A_ waittime); 3135 backend_poll (EV_A_ waittime);
2303 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3136 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3137
3138 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3139
3140 MEMORY_FENCE_ACQUIRE;
3141 if (pipe_write_skipped)
3142 {
3143 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3144 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3145 }
3146
2304 3147
2305 /* update ev_rt_now, do magic */ 3148 /* update ev_rt_now, do magic */
2306 time_update (EV_A_ waittime + sleeptime); 3149 time_update (EV_A_ waittime + sleeptime);
2307 } 3150 }
2308 3151
… …
2315#if EV_IDLE_ENABLE 3158#if EV_IDLE_ENABLE
2316 /* queue idle watchers unless other events are pending */ 3159 /* queue idle watchers unless other events are pending */
2317 idle_reify (EV_A); 3160 idle_reify (EV_A);
2318#endif 3161#endif
2319 3162
3163#if EV_CHECK_ENABLE
2320 /* queue check watchers, to be executed first */ 3164 /* queue check watchers, to be executed first */
2321 if (expect_false (checkcnt)) 3165 if (expect_false (checkcnt))
2322 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3166 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3167#endif
2323 3168
2324 EV_INVOKE_PENDING; 3169 EV_INVOKE_PENDING;
2325 } 3170 }
2326 while (expect_true ( 3171 while (expect_true (
2327 activecnt 3172 activecnt
2328 && !loop_done 3173 && !loop_done
2329 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3174 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2330 )); 3175 ));
2331 3176
2332 if (loop_done == EVUNLOOP_ONE) 3177 if (loop_done == EVBREAK_ONE)
2333 loop_done = EVUNLOOP_CANCEL; 3178 loop_done = EVBREAK_CANCEL;
2334 3179
2335#if EV_MINIMAL < 2 3180#if EV_FEATURE_API
2336 --loop_depth; 3181 --loop_depth;
2337#endif 3182#endif
3183
3184 return activecnt;
2338} 3185}
2339 3186
2340void 3187void
2341ev_unloop (EV_P_ int how) 3188ev_break (EV_P_ int how) EV_THROW
2342{ 3189{
2343 loop_done = how; 3190 loop_done = how;
2344} 3191}
2345 3192
2346void 3193void
2347ev_ref (EV_P) 3194ev_ref (EV_P) EV_THROW
2348{ 3195{
2349 ++activecnt; 3196 ++activecnt;
2350} 3197}
2351 3198
2352void 3199void
2353ev_unref (EV_P) 3200ev_unref (EV_P) EV_THROW
2354{ 3201{
2355 --activecnt; 3202 --activecnt;
2356} 3203}
2357 3204
2358void 3205void
2359ev_now_update (EV_P) 3206ev_now_update (EV_P) EV_THROW
2360{ 3207{
2361 time_update (EV_A_ 1e100); 3208 time_update (EV_A_ 1e100);
2362} 3209}
2363 3210
2364void 3211void
2365ev_suspend (EV_P) 3212ev_suspend (EV_P) EV_THROW
2366{ 3213{
2367 ev_now_update (EV_A); 3214 ev_now_update (EV_A);
2368} 3215}
2369 3216
2370void 3217void
2371ev_resume (EV_P) 3218ev_resume (EV_P) EV_THROW
2372{ 3219{
2373 ev_tstamp mn_prev = mn_now; 3220 ev_tstamp mn_prev = mn_now;
2374 3221
2375 ev_now_update (EV_A); 3222 ev_now_update (EV_A);
2376 timers_reschedule (EV_A_ mn_now - mn_prev); 3223 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2393inline_size void 3240inline_size void
2394wlist_del (WL *head, WL elem) 3241wlist_del (WL *head, WL elem)
2395{ 3242{
2396 while (*head) 3243 while (*head)
2397 { 3244 {
2398 if (*head == elem) 3245 if (expect_true (*head == elem))
2399 { 3246 {
2400 *head = elem->next; 3247 *head = elem->next;
2401 return; 3248 break;
2402 } 3249 }
2403 3250
2404 head = &(*head)->next; 3251 head = &(*head)->next;
2405 } 3252 }
2406} 3253}
… …
2415 w->pending = 0; 3262 w->pending = 0;
2416 } 3263 }
2417} 3264}
2418 3265
2419int 3266int
2420ev_clear_pending (EV_P_ void *w) 3267ev_clear_pending (EV_P_ void *w) EV_THROW
2421{ 3268{
2422 W w_ = (W)w; 3269 W w_ = (W)w;
2423 int pending = w_->pending; 3270 int pending = w_->pending;
2424 3271
2425 if (expect_true (pending)) 3272 if (expect_true (pending))
… …
2458} 3305}
2459 3306
2460/*****************************************************************************/ 3307/*****************************************************************************/
2461 3308
2462void noinline 3309void noinline
2463ev_io_start (EV_P_ ev_io *w) 3310ev_io_start (EV_P_ ev_io *w) EV_THROW
2464{ 3311{
2465 int fd = w->fd; 3312 int fd = w->fd;
2466 3313
2467 if (expect_false (ev_is_active (w))) 3314 if (expect_false (ev_is_active (w)))
2468 return; 3315 return;
2469 3316
2470 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3317 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2471 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3318 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2472 3319
2473 EV_FREQUENT_CHECK; 3320 EV_FREQUENT_CHECK;
2474 3321
2475 ev_start (EV_A_ (W)w, 1); 3322 ev_start (EV_A_ (W)w, 1);
2476 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3323 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2477 wlist_add (&anfds[fd].head, (WL)w); 3324 wlist_add (&anfds[fd].head, (WL)w);
2478 3325
3326 /* common bug, apparently */
3327 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3328
2479 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3329 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2480 w->events &= ~EV__IOFDSET; 3330 w->events &= ~EV__IOFDSET;
2481 3331
2482 EV_FREQUENT_CHECK; 3332 EV_FREQUENT_CHECK;
2483} 3333}
2484 3334
2485void noinline 3335void noinline
2486ev_io_stop (EV_P_ ev_io *w) 3336ev_io_stop (EV_P_ ev_io *w) EV_THROW
2487{ 3337{
2488 clear_pending (EV_A_ (W)w); 3338 clear_pending (EV_A_ (W)w);
2489 if (expect_false (!ev_is_active (w))) 3339 if (expect_false (!ev_is_active (w)))
2490 return; 3340 return;
2491 3341
… …
2494 EV_FREQUENT_CHECK; 3344 EV_FREQUENT_CHECK;
2495 3345
2496 wlist_del (&anfds[w->fd].head, (WL)w); 3346 wlist_del (&anfds[w->fd].head, (WL)w);
2497 ev_stop (EV_A_ (W)w); 3347 ev_stop (EV_A_ (W)w);
2498 3348
2499 fd_change (EV_A_ w->fd, 1); 3349 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2500 3350
2501 EV_FREQUENT_CHECK; 3351 EV_FREQUENT_CHECK;
2502} 3352}
2503 3353
2504void noinline 3354void noinline
2505ev_timer_start (EV_P_ ev_timer *w) 3355ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2506{ 3356{
2507 if (expect_false (ev_is_active (w))) 3357 if (expect_false (ev_is_active (w)))
2508 return; 3358 return;
2509 3359
2510 ev_at (w) += mn_now; 3360 ev_at (w) += mn_now;
… …
2524 3374
2525 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3375 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2526} 3376}
2527 3377
2528void noinline 3378void noinline
2529ev_timer_stop (EV_P_ ev_timer *w) 3379ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2530{ 3380{
2531 clear_pending (EV_A_ (W)w); 3381 clear_pending (EV_A_ (W)w);
2532 if (expect_false (!ev_is_active (w))) 3382 if (expect_false (!ev_is_active (w)))
2533 return; 3383 return;
2534 3384
… …
2546 timers [active] = timers [timercnt + HEAP0]; 3396 timers [active] = timers [timercnt + HEAP0];
2547 adjustheap (timers, timercnt, active); 3397 adjustheap (timers, timercnt, active);
2548 } 3398 }
2549 } 3399 }
2550 3400
2551 EV_FREQUENT_CHECK;
2552
2553 ev_at (w) -= mn_now; 3401 ev_at (w) -= mn_now;
2554 3402
2555 ev_stop (EV_A_ (W)w); 3403 ev_stop (EV_A_ (W)w);
3404
3405 EV_FREQUENT_CHECK;
2556} 3406}
2557 3407
2558void noinline 3408void noinline
2559ev_timer_again (EV_P_ ev_timer *w) 3409ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2560{ 3410{
2561 EV_FREQUENT_CHECK; 3411 EV_FREQUENT_CHECK;
3412
3413 clear_pending (EV_A_ (W)w);
2562 3414
2563 if (ev_is_active (w)) 3415 if (ev_is_active (w))
2564 { 3416 {
2565 if (w->repeat) 3417 if (w->repeat)
2566 { 3418 {
… …
2579 3431
2580 EV_FREQUENT_CHECK; 3432 EV_FREQUENT_CHECK;
2581} 3433}
2582 3434
2583ev_tstamp 3435ev_tstamp
2584ev_timer_remaining (EV_P_ ev_timer *w) 3436ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2585{ 3437{
2586 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3438 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2587} 3439}
2588 3440
2589#if EV_PERIODIC_ENABLE 3441#if EV_PERIODIC_ENABLE
2590void noinline 3442void noinline
2591ev_periodic_start (EV_P_ ev_periodic *w) 3443ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2592{ 3444{
2593 if (expect_false (ev_is_active (w))) 3445 if (expect_false (ev_is_active (w)))
2594 return; 3446 return;
2595 3447
2596 if (w->reschedule_cb) 3448 if (w->reschedule_cb)
2597 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3449 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2598 else if (w->interval) 3450 else if (w->interval)
2599 { 3451 {
2600 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3452 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2601 /* this formula differs from the one in periodic_reify because we do not always round up */ 3453 periodic_recalc (EV_A_ w);
2602 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2603 } 3454 }
2604 else 3455 else
2605 ev_at (w) = w->offset; 3456 ev_at (w) = w->offset;
2606 3457
2607 EV_FREQUENT_CHECK; 3458 EV_FREQUENT_CHECK;
… …
2617 3468
2618 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3469 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2619} 3470}
2620 3471
2621void noinline 3472void noinline
2622ev_periodic_stop (EV_P_ ev_periodic *w) 3473ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2623{ 3474{
2624 clear_pending (EV_A_ (W)w); 3475 clear_pending (EV_A_ (W)w);
2625 if (expect_false (!ev_is_active (w))) 3476 if (expect_false (!ev_is_active (w)))
2626 return; 3477 return;
2627 3478
… …
2639 periodics [active] = periodics [periodiccnt + HEAP0]; 3490 periodics [active] = periodics [periodiccnt + HEAP0];
2640 adjustheap (periodics, periodiccnt, active); 3491 adjustheap (periodics, periodiccnt, active);
2641 } 3492 }
2642 } 3493 }
2643 3494
2644 EV_FREQUENT_CHECK;
2645
2646 ev_stop (EV_A_ (W)w); 3495 ev_stop (EV_A_ (W)w);
3496
3497 EV_FREQUENT_CHECK;
2647} 3498}
2648 3499
2649void noinline 3500void noinline
2650ev_periodic_again (EV_P_ ev_periodic *w) 3501ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2651{ 3502{
2652 /* TODO: use adjustheap and recalculation */ 3503 /* TODO: use adjustheap and recalculation */
2653 ev_periodic_stop (EV_A_ w); 3504 ev_periodic_stop (EV_A_ w);
2654 ev_periodic_start (EV_A_ w); 3505 ev_periodic_start (EV_A_ w);
2655} 3506}
… …
2657 3508
2658#ifndef SA_RESTART 3509#ifndef SA_RESTART
2659# define SA_RESTART 0 3510# define SA_RESTART 0
2660#endif 3511#endif
2661 3512
3513#if EV_SIGNAL_ENABLE
3514
2662void noinline 3515void noinline
2663ev_signal_start (EV_P_ ev_signal *w) 3516ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2664{ 3517{
2665 if (expect_false (ev_is_active (w))) 3518 if (expect_false (ev_is_active (w)))
2666 return; 3519 return;
2667 3520
2668 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3521 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2669 3522
2670#if EV_MULTIPLICITY 3523#if EV_MULTIPLICITY
2671 assert (("libev: tried to attach to a signal from two different loops", 3524 assert (("libev: a signal must not be attached to two different loops",
2672 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3525 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2673 3526
2674 signals [w->signum - 1].loop = EV_A; 3527 signals [w->signum - 1].loop = EV_A;
2675#endif 3528#endif
2676 3529
… …
2712 if (!((WL)w)->next) 3565 if (!((WL)w)->next)
2713# if EV_USE_SIGNALFD 3566# if EV_USE_SIGNALFD
2714 if (sigfd < 0) /*TODO*/ 3567 if (sigfd < 0) /*TODO*/
2715# endif 3568# endif
2716 { 3569 {
2717# if _WIN32 3570# ifdef _WIN32
3571 evpipe_init (EV_A);
3572
2718 signal (w->signum, ev_sighandler); 3573 signal (w->signum, ev_sighandler);
2719# else 3574# else
2720 struct sigaction sa; 3575 struct sigaction sa;
2721 3576
2722 evpipe_init (EV_A); 3577 evpipe_init (EV_A);
… …
2724 sa.sa_handler = ev_sighandler; 3579 sa.sa_handler = ev_sighandler;
2725 sigfillset (&sa.sa_mask); 3580 sigfillset (&sa.sa_mask);
2726 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3581 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2727 sigaction (w->signum, &sa, 0); 3582 sigaction (w->signum, &sa, 0);
2728 3583
3584 if (origflags & EVFLAG_NOSIGMASK)
3585 {
2729 sigemptyset (&sa.sa_mask); 3586 sigemptyset (&sa.sa_mask);
2730 sigaddset (&sa.sa_mask, w->signum); 3587 sigaddset (&sa.sa_mask, w->signum);
2731 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3588 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3589 }
2732#endif 3590#endif
2733 } 3591 }
2734 3592
2735 EV_FREQUENT_CHECK; 3593 EV_FREQUENT_CHECK;
2736} 3594}
2737 3595
2738void noinline 3596void noinline
2739ev_signal_stop (EV_P_ ev_signal *w) 3597ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2740{ 3598{
2741 clear_pending (EV_A_ (W)w); 3599 clear_pending (EV_A_ (W)w);
2742 if (expect_false (!ev_is_active (w))) 3600 if (expect_false (!ev_is_active (w)))
2743 return; 3601 return;
2744 3602
… …
2747 wlist_del (&signals [w->signum - 1].head, (WL)w); 3605 wlist_del (&signals [w->signum - 1].head, (WL)w);
2748 ev_stop (EV_A_ (W)w); 3606 ev_stop (EV_A_ (W)w);
2749 3607
2750 if (!signals [w->signum - 1].head) 3608 if (!signals [w->signum - 1].head)
2751 { 3609 {
2752 #if EV_MULTIPLICITY 3610#if EV_MULTIPLICITY
2753 signals [w->signum - 1].loop = 0; /* unattach from signal */ 3611 signals [w->signum - 1].loop = 0; /* unattach from signal */
2754 #endif 3612#endif
2755 #if EV_USE_SIGNALFD 3613#if EV_USE_SIGNALFD
2756 if (sigfd >= 0) 3614 if (sigfd >= 0)
2757 { 3615 {
2758 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3616 sigset_t ss;
3617
3618 sigemptyset (&ss);
3619 sigaddset (&ss, w->signum);
2759 sigdelset (&sigfd_set, w->signum); 3620 sigdelset (&sigfd_set, w->signum);
3621
2760 signalfd (sigfd, &sigfd_set, 0); 3622 signalfd (sigfd, &sigfd_set, 0);
2761 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3623 sigprocmask (SIG_UNBLOCK, &ss, 0);
2762 /*TODO: maybe unblock signal? */
2763 } 3624 }
2764 else 3625 else
2765 #endif 3626#endif
2766 signal (w->signum, SIG_DFL); 3627 signal (w->signum, SIG_DFL);
2767 } 3628 }
2768 3629
2769 EV_FREQUENT_CHECK; 3630 EV_FREQUENT_CHECK;
2770} 3631}
2771 3632
3633#endif
3634
3635#if EV_CHILD_ENABLE
3636
2772void 3637void
2773ev_child_start (EV_P_ ev_child *w) 3638ev_child_start (EV_P_ ev_child *w) EV_THROW
2774{ 3639{
2775#if EV_MULTIPLICITY 3640#if EV_MULTIPLICITY
2776 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3641 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2777#endif 3642#endif
2778 if (expect_false (ev_is_active (w))) 3643 if (expect_false (ev_is_active (w)))
2779 return; 3644 return;
2780 3645
2781 EV_FREQUENT_CHECK; 3646 EV_FREQUENT_CHECK;
2782 3647
2783 ev_start (EV_A_ (W)w, 1); 3648 ev_start (EV_A_ (W)w, 1);
2784 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3649 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2785 3650
2786 EV_FREQUENT_CHECK; 3651 EV_FREQUENT_CHECK;
2787} 3652}
2788 3653
2789void 3654void
2790ev_child_stop (EV_P_ ev_child *w) 3655ev_child_stop (EV_P_ ev_child *w) EV_THROW
2791{ 3656{
2792 clear_pending (EV_A_ (W)w); 3657 clear_pending (EV_A_ (W)w);
2793 if (expect_false (!ev_is_active (w))) 3658 if (expect_false (!ev_is_active (w)))
2794 return; 3659 return;
2795 3660
2796 EV_FREQUENT_CHECK; 3661 EV_FREQUENT_CHECK;
2797 3662
2798 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3663 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2799 ev_stop (EV_A_ (W)w); 3664 ev_stop (EV_A_ (W)w);
2800 3665
2801 EV_FREQUENT_CHECK; 3666 EV_FREQUENT_CHECK;
2802} 3667}
3668
3669#endif
2803 3670
2804#if EV_STAT_ENABLE 3671#if EV_STAT_ENABLE
2805 3672
2806# ifdef _WIN32 3673# ifdef _WIN32
2807# undef lstat 3674# undef lstat
… …
2813#define MIN_STAT_INTERVAL 0.1074891 3680#define MIN_STAT_INTERVAL 0.1074891
2814 3681
2815static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3682static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2816 3683
2817#if EV_USE_INOTIFY 3684#if EV_USE_INOTIFY
2818# define EV_INOTIFY_BUFSIZE 8192 3685
3686/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3687# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2819 3688
2820static void noinline 3689static void noinline
2821infy_add (EV_P_ ev_stat *w) 3690infy_add (EV_P_ ev_stat *w)
2822{ 3691{
2823 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); 3692 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);
2824 3693
2825 if (w->wd < 0) 3694 if (w->wd >= 0)
3695 {
3696 struct statfs sfs;
3697
3698 /* now local changes will be tracked by inotify, but remote changes won't */
3699 /* unless the filesystem is known to be local, we therefore still poll */
3700 /* also do poll on <2.6.25, but with normal frequency */
3701
3702 if (!fs_2625)
3703 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3704 else if (!statfs (w->path, &sfs)
3705 && (sfs.f_type == 0x1373 /* devfs */
3706 || sfs.f_type == 0xEF53 /* ext2/3 */
3707 || sfs.f_type == 0x3153464a /* jfs */
3708 || sfs.f_type == 0x52654973 /* reiser3 */
3709 || sfs.f_type == 0x01021994 /* tempfs */
3710 || sfs.f_type == 0x58465342 /* xfs */))
3711 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3712 else
3713 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2826 { 3714 }
3715 else
3716 {
3717 /* can't use inotify, continue to stat */
2827 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3718 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2828 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2829 3719
2830 /* monitor some parent directory for speedup hints */ 3720 /* if path is not there, monitor some parent directory for speedup hints */
2831 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3721 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2832 /* but an efficiency issue only */ 3722 /* but an efficiency issue only */
2833 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3723 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2834 { 3724 {
2835 char path [4096]; 3725 char path [4096];
… …
2845 if (!pend || pend == path) 3735 if (!pend || pend == path)
2846 break; 3736 break;
2847 3737
2848 *pend = 0; 3738 *pend = 0;
2849 w->wd = inotify_add_watch (fs_fd, path, mask); 3739 w->wd = inotify_add_watch (fs_fd, path, mask);
2850 } 3740 }
2851 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3741 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2852 } 3742 }
2853 } 3743 }
2854 3744
2855 if (w->wd >= 0) 3745 if (w->wd >= 0)
2856 {
2857 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3746 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2858 3747
2859 /* now local changes will be tracked by inotify, but remote changes won't */ 3748 /* now re-arm timer, if required */
2860 /* unless the filesystem it known to be local, we therefore still poll */ 3749 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2861 /* also do poll on <2.6.25, but with normal frequency */
2862 struct statfs sfs;
2863
2864 if (fs_2625 && !statfs (w->path, &sfs))
2865 if (sfs.f_type == 0x1373 /* devfs */
2866 || sfs.f_type == 0xEF53 /* ext2/3 */
2867 || sfs.f_type == 0x3153464a /* jfs */
2868 || sfs.f_type == 0x52654973 /* reiser3 */
2869 || sfs.f_type == 0x01021994 /* tempfs */
2870 || sfs.f_type == 0x58465342 /* xfs */)
2871 return;
2872
2873 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2874 ev_timer_again (EV_A_ &w->timer); 3750 ev_timer_again (EV_A_ &w->timer);
2875 } 3751 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2876} 3752}
2877 3753
2878static void noinline 3754static void noinline
2879infy_del (EV_P_ ev_stat *w) 3755infy_del (EV_P_ ev_stat *w)
2880{ 3756{
… …
2883 3759
2884 if (wd < 0) 3760 if (wd < 0)
2885 return; 3761 return;
2886 3762
2887 w->wd = -2; 3763 w->wd = -2;
2888 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3764 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2889 wlist_del (&fs_hash [slot].head, (WL)w); 3765 wlist_del (&fs_hash [slot].head, (WL)w);
2890 3766
2891 /* remove this watcher, if others are watching it, they will rearm */ 3767 /* remove this watcher, if others are watching it, they will rearm */
2892 inotify_rm_watch (fs_fd, wd); 3768 inotify_rm_watch (fs_fd, wd);
2893} 3769}
… …
2895static void noinline 3771static void noinline
2896infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3772infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2897{ 3773{
2898 if (slot < 0) 3774 if (slot < 0)
2899 /* overflow, need to check for all hash slots */ 3775 /* overflow, need to check for all hash slots */
2900 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3776 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2901 infy_wd (EV_A_ slot, wd, ev); 3777 infy_wd (EV_A_ slot, wd, ev);
2902 else 3778 else
2903 { 3779 {
2904 WL w_; 3780 WL w_;
2905 3781
2906 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3782 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2907 { 3783 {
2908 ev_stat *w = (ev_stat *)w_; 3784 ev_stat *w = (ev_stat *)w_;
2909 w_ = w_->next; /* lets us remove this watcher and all before it */ 3785 w_ = w_->next; /* lets us remove this watcher and all before it */
2910 3786
2911 if (w->wd == wd || wd == -1) 3787 if (w->wd == wd || wd == -1)
2912 { 3788 {
2913 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3789 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2914 { 3790 {
2915 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3791 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2916 w->wd = -1; 3792 w->wd = -1;
2917 infy_add (EV_A_ w); /* re-add, no matter what */ 3793 infy_add (EV_A_ w); /* re-add, no matter what */
2918 } 3794 }
2919 3795
2920 stat_timer_cb (EV_A_ &w->timer, 0); 3796 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2925 3801
2926static void 3802static void
2927infy_cb (EV_P_ ev_io *w, int revents) 3803infy_cb (EV_P_ ev_io *w, int revents)
2928{ 3804{
2929 char buf [EV_INOTIFY_BUFSIZE]; 3805 char buf [EV_INOTIFY_BUFSIZE];
2930 struct inotify_event *ev = (struct inotify_event *)buf;
2931 int ofs; 3806 int ofs;
2932 int len = read (fs_fd, buf, sizeof (buf)); 3807 int len = read (fs_fd, buf, sizeof (buf));
2933 3808
2934 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3809 for (ofs = 0; ofs < len; )
3810 {
3811 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2935 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3812 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3813 ofs += sizeof (struct inotify_event) + ev->len;
3814 }
2936} 3815}
2937 3816
2938inline_size void 3817inline_size void ecb_cold
2939check_2625 (EV_P) 3818ev_check_2625 (EV_P)
2940{ 3819{
2941 /* kernels < 2.6.25 are borked 3820 /* kernels < 2.6.25 are borked
2942 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3821 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2943 */ 3822 */
2944 struct utsname buf; 3823 if (ev_linux_version () < 0x020619)
2945 int major, minor, micro;
2946
2947 if (uname (&buf))
2948 return; 3824 return;
2949 3825
2950 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2951 return;
2952
2953 if (major < 2
2954 || (major == 2 && minor < 6)
2955 || (major == 2 && minor == 6 && micro < 25))
2956 return;
2957
2958 fs_2625 = 1; 3826 fs_2625 = 1;
3827}
3828
3829inline_size int
3830infy_newfd (void)
3831{
3832#if defined IN_CLOEXEC && defined IN_NONBLOCK
3833 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3834 if (fd >= 0)
3835 return fd;
3836#endif
3837 return inotify_init ();
2959} 3838}
2960 3839
2961inline_size void 3840inline_size void
2962infy_init (EV_P) 3841infy_init (EV_P)
2963{ 3842{
2964 if (fs_fd != -2) 3843 if (fs_fd != -2)
2965 return; 3844 return;
2966 3845
2967 fs_fd = -1; 3846 fs_fd = -1;
2968 3847
2969 check_2625 (EV_A); 3848 ev_check_2625 (EV_A);
2970 3849
2971 fs_fd = inotify_init (); 3850 fs_fd = infy_newfd ();
2972 3851
2973 if (fs_fd >= 0) 3852 if (fs_fd >= 0)
2974 { 3853 {
3854 fd_intern (fs_fd);
2975 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3855 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2976 ev_set_priority (&fs_w, EV_MAXPRI); 3856 ev_set_priority (&fs_w, EV_MAXPRI);
2977 ev_io_start (EV_A_ &fs_w); 3857 ev_io_start (EV_A_ &fs_w);
3858 ev_unref (EV_A);
2978 } 3859 }
2979} 3860}
2980 3861
2981inline_size void 3862inline_size void
2982infy_fork (EV_P) 3863infy_fork (EV_P)
… …
2984 int slot; 3865 int slot;
2985 3866
2986 if (fs_fd < 0) 3867 if (fs_fd < 0)
2987 return; 3868 return;
2988 3869
3870 ev_ref (EV_A);
3871 ev_io_stop (EV_A_ &fs_w);
2989 close (fs_fd); 3872 close (fs_fd);
2990 fs_fd = inotify_init (); 3873 fs_fd = infy_newfd ();
2991 3874
3875 if (fs_fd >= 0)
3876 {
3877 fd_intern (fs_fd);
3878 ev_io_set (&fs_w, fs_fd, EV_READ);
3879 ev_io_start (EV_A_ &fs_w);
3880 ev_unref (EV_A);
3881 }
3882
2992 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3883 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2993 { 3884 {
2994 WL w_ = fs_hash [slot].head; 3885 WL w_ = fs_hash [slot].head;
2995 fs_hash [slot].head = 0; 3886 fs_hash [slot].head = 0;
2996 3887
2997 while (w_) 3888 while (w_)
… …
3002 w->wd = -1; 3893 w->wd = -1;
3003 3894
3004 if (fs_fd >= 0) 3895 if (fs_fd >= 0)
3005 infy_add (EV_A_ w); /* re-add, no matter what */ 3896 infy_add (EV_A_ w); /* re-add, no matter what */
3006 else 3897 else
3898 {
3899 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3900 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3007 ev_timer_again (EV_A_ &w->timer); 3901 ev_timer_again (EV_A_ &w->timer);
3902 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3903 }
3008 } 3904 }
3009 } 3905 }
3010} 3906}
3011 3907
3012#endif 3908#endif
… …
3016#else 3912#else
3017# define EV_LSTAT(p,b) lstat (p, b) 3913# define EV_LSTAT(p,b) lstat (p, b)
3018#endif 3914#endif
3019 3915
3020void 3916void
3021ev_stat_stat (EV_P_ ev_stat *w) 3917ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3022{ 3918{
3023 if (lstat (w->path, &w->attr) < 0) 3919 if (lstat (w->path, &w->attr) < 0)
3024 w->attr.st_nlink = 0; 3920 w->attr.st_nlink = 0;
3025 else if (!w->attr.st_nlink) 3921 else if (!w->attr.st_nlink)
3026 w->attr.st_nlink = 1; 3922 w->attr.st_nlink = 1;
… …
3029static void noinline 3925static void noinline
3030stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3926stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3031{ 3927{
3032 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3928 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3033 3929
3034 /* we copy this here each the time so that */ 3930 ev_statdata prev = w->attr;
3035 /* prev has the old value when the callback gets invoked */
3036 w->prev = w->attr;
3037 ev_stat_stat (EV_A_ w); 3931 ev_stat_stat (EV_A_ w);
3038 3932
3039 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3933 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3040 if ( 3934 if (
3041 w->prev.st_dev != w->attr.st_dev 3935 prev.st_dev != w->attr.st_dev
3042 || w->prev.st_ino != w->attr.st_ino 3936 || prev.st_ino != w->attr.st_ino
3043 || w->prev.st_mode != w->attr.st_mode 3937 || prev.st_mode != w->attr.st_mode
3044 || w->prev.st_nlink != w->attr.st_nlink 3938 || prev.st_nlink != w->attr.st_nlink
3045 || w->prev.st_uid != w->attr.st_uid 3939 || prev.st_uid != w->attr.st_uid
3046 || w->prev.st_gid != w->attr.st_gid 3940 || prev.st_gid != w->attr.st_gid
3047 || w->prev.st_rdev != w->attr.st_rdev 3941 || prev.st_rdev != w->attr.st_rdev
3048 || w->prev.st_size != w->attr.st_size 3942 || prev.st_size != w->attr.st_size
3049 || w->prev.st_atime != w->attr.st_atime 3943 || prev.st_atime != w->attr.st_atime
3050 || w->prev.st_mtime != w->attr.st_mtime 3944 || prev.st_mtime != w->attr.st_mtime
3051 || w->prev.st_ctime != w->attr.st_ctime 3945 || prev.st_ctime != w->attr.st_ctime
3052 ) { 3946 ) {
3947 /* we only update w->prev on actual differences */
3948 /* in case we test more often than invoke the callback, */
3949 /* to ensure that prev is always different to attr */
3950 w->prev = prev;
3951
3053 #if EV_USE_INOTIFY 3952 #if EV_USE_INOTIFY
3054 if (fs_fd >= 0) 3953 if (fs_fd >= 0)
3055 { 3954 {
3056 infy_del (EV_A_ w); 3955 infy_del (EV_A_ w);
3057 infy_add (EV_A_ w); 3956 infy_add (EV_A_ w);
… …
3062 ev_feed_event (EV_A_ w, EV_STAT); 3961 ev_feed_event (EV_A_ w, EV_STAT);
3063 } 3962 }
3064} 3963}
3065 3964
3066void 3965void
3067ev_stat_start (EV_P_ ev_stat *w) 3966ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3068{ 3967{
3069 if (expect_false (ev_is_active (w))) 3968 if (expect_false (ev_is_active (w)))
3070 return; 3969 return;
3071 3970
3072 ev_stat_stat (EV_A_ w); 3971 ev_stat_stat (EV_A_ w);
… …
3082 3981
3083 if (fs_fd >= 0) 3982 if (fs_fd >= 0)
3084 infy_add (EV_A_ w); 3983 infy_add (EV_A_ w);
3085 else 3984 else
3086#endif 3985#endif
3986 {
3087 ev_timer_again (EV_A_ &w->timer); 3987 ev_timer_again (EV_A_ &w->timer);
3988 ev_unref (EV_A);
3989 }
3088 3990
3089 ev_start (EV_A_ (W)w, 1); 3991 ev_start (EV_A_ (W)w, 1);
3090 3992
3091 EV_FREQUENT_CHECK; 3993 EV_FREQUENT_CHECK;
3092} 3994}
3093 3995
3094void 3996void
3095ev_stat_stop (EV_P_ ev_stat *w) 3997ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3096{ 3998{
3097 clear_pending (EV_A_ (W)w); 3999 clear_pending (EV_A_ (W)w);
3098 if (expect_false (!ev_is_active (w))) 4000 if (expect_false (!ev_is_active (w)))
3099 return; 4001 return;
3100 4002
3101 EV_FREQUENT_CHECK; 4003 EV_FREQUENT_CHECK;
3102 4004
3103#if EV_USE_INOTIFY 4005#if EV_USE_INOTIFY
3104 infy_del (EV_A_ w); 4006 infy_del (EV_A_ w);
3105#endif 4007#endif
4008
4009 if (ev_is_active (&w->timer))
4010 {
4011 ev_ref (EV_A);
3106 ev_timer_stop (EV_A_ &w->timer); 4012 ev_timer_stop (EV_A_ &w->timer);
4013 }
3107 4014
3108 ev_stop (EV_A_ (W)w); 4015 ev_stop (EV_A_ (W)w);
3109 4016
3110 EV_FREQUENT_CHECK; 4017 EV_FREQUENT_CHECK;
3111} 4018}
3112#endif 4019#endif
3113 4020
3114#if EV_IDLE_ENABLE 4021#if EV_IDLE_ENABLE
3115void 4022void
3116ev_idle_start (EV_P_ ev_idle *w) 4023ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3117{ 4024{
3118 if (expect_false (ev_is_active (w))) 4025 if (expect_false (ev_is_active (w)))
3119 return; 4026 return;
3120 4027
3121 pri_adjust (EV_A_ (W)w); 4028 pri_adjust (EV_A_ (W)w);
… …
3134 4041
3135 EV_FREQUENT_CHECK; 4042 EV_FREQUENT_CHECK;
3136} 4043}
3137 4044
3138void 4045void
3139ev_idle_stop (EV_P_ ev_idle *w) 4046ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3140{ 4047{
3141 clear_pending (EV_A_ (W)w); 4048 clear_pending (EV_A_ (W)w);
3142 if (expect_false (!ev_is_active (w))) 4049 if (expect_false (!ev_is_active (w)))
3143 return; 4050 return;
3144 4051
… …
3156 4063
3157 EV_FREQUENT_CHECK; 4064 EV_FREQUENT_CHECK;
3158} 4065}
3159#endif 4066#endif
3160 4067
4068#if EV_PREPARE_ENABLE
3161void 4069void
3162ev_prepare_start (EV_P_ ev_prepare *w) 4070ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3163{ 4071{
3164 if (expect_false (ev_is_active (w))) 4072 if (expect_false (ev_is_active (w)))
3165 return; 4073 return;
3166 4074
3167 EV_FREQUENT_CHECK; 4075 EV_FREQUENT_CHECK;
… …
3172 4080
3173 EV_FREQUENT_CHECK; 4081 EV_FREQUENT_CHECK;
3174} 4082}
3175 4083
3176void 4084void
3177ev_prepare_stop (EV_P_ ev_prepare *w) 4085ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3178{ 4086{
3179 clear_pending (EV_A_ (W)w); 4087 clear_pending (EV_A_ (W)w);
3180 if (expect_false (!ev_is_active (w))) 4088 if (expect_false (!ev_is_active (w)))
3181 return; 4089 return;
3182 4090
… …
3191 4099
3192 ev_stop (EV_A_ (W)w); 4100 ev_stop (EV_A_ (W)w);
3193 4101
3194 EV_FREQUENT_CHECK; 4102 EV_FREQUENT_CHECK;
3195} 4103}
4104#endif
3196 4105
4106#if EV_CHECK_ENABLE
3197void 4107void
3198ev_check_start (EV_P_ ev_check *w) 4108ev_check_start (EV_P_ ev_check *w) EV_THROW
3199{ 4109{
3200 if (expect_false (ev_is_active (w))) 4110 if (expect_false (ev_is_active (w)))
3201 return; 4111 return;
3202 4112
3203 EV_FREQUENT_CHECK; 4113 EV_FREQUENT_CHECK;
… …
3208 4118
3209 EV_FREQUENT_CHECK; 4119 EV_FREQUENT_CHECK;
3210} 4120}
3211 4121
3212void 4122void
3213ev_check_stop (EV_P_ ev_check *w) 4123ev_check_stop (EV_P_ ev_check *w) EV_THROW
3214{ 4124{
3215 clear_pending (EV_A_ (W)w); 4125 clear_pending (EV_A_ (W)w);
3216 if (expect_false (!ev_is_active (w))) 4126 if (expect_false (!ev_is_active (w)))
3217 return; 4127 return;
3218 4128
… …
3227 4137
3228 ev_stop (EV_A_ (W)w); 4138 ev_stop (EV_A_ (W)w);
3229 4139
3230 EV_FREQUENT_CHECK; 4140 EV_FREQUENT_CHECK;
3231} 4141}
4142#endif
3232 4143
3233#if EV_EMBED_ENABLE 4144#if EV_EMBED_ENABLE
3234void noinline 4145void noinline
3235ev_embed_sweep (EV_P_ ev_embed *w) 4146ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3236{ 4147{
3237 ev_loop (w->other, EVLOOP_NONBLOCK); 4148 ev_run (w->other, EVRUN_NOWAIT);
3238} 4149}
3239 4150
3240static void 4151static void
3241embed_io_cb (EV_P_ ev_io *io, int revents) 4152embed_io_cb (EV_P_ ev_io *io, int revents)
3242{ 4153{
3243 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4154 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3244 4155
3245 if (ev_cb (w)) 4156 if (ev_cb (w))
3246 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4157 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3247 else 4158 else
3248 ev_loop (w->other, EVLOOP_NONBLOCK); 4159 ev_run (w->other, EVRUN_NOWAIT);
3249} 4160}
3250 4161
3251static void 4162static void
3252embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4163embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3253{ 4164{
… …
3257 EV_P = w->other; 4168 EV_P = w->other;
3258 4169
3259 while (fdchangecnt) 4170 while (fdchangecnt)
3260 { 4171 {
3261 fd_reify (EV_A); 4172 fd_reify (EV_A);
3262 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4173 ev_run (EV_A_ EVRUN_NOWAIT);
3263 } 4174 }
3264 } 4175 }
3265} 4176}
3266 4177
3267static void 4178static void
… …
3273 4184
3274 { 4185 {
3275 EV_P = w->other; 4186 EV_P = w->other;
3276 4187
3277 ev_loop_fork (EV_A); 4188 ev_loop_fork (EV_A);
3278 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4189 ev_run (EV_A_ EVRUN_NOWAIT);
3279 } 4190 }
3280 4191
3281 ev_embed_start (EV_A_ w); 4192 ev_embed_start (EV_A_ w);
3282} 4193}
3283 4194
… …
3288 ev_idle_stop (EV_A_ idle); 4199 ev_idle_stop (EV_A_ idle);
3289} 4200}
3290#endif 4201#endif
3291 4202
3292void 4203void
3293ev_embed_start (EV_P_ ev_embed *w) 4204ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3294{ 4205{
3295 if (expect_false (ev_is_active (w))) 4206 if (expect_false (ev_is_active (w)))
3296 return; 4207 return;
3297 4208
3298 { 4209 {
… …
3319 4230
3320 EV_FREQUENT_CHECK; 4231 EV_FREQUENT_CHECK;
3321} 4232}
3322 4233
3323void 4234void
3324ev_embed_stop (EV_P_ ev_embed *w) 4235ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3325{ 4236{
3326 clear_pending (EV_A_ (W)w); 4237 clear_pending (EV_A_ (W)w);
3327 if (expect_false (!ev_is_active (w))) 4238 if (expect_false (!ev_is_active (w)))
3328 return; 4239 return;
3329 4240
… …
3331 4242
3332 ev_io_stop (EV_A_ &w->io); 4243 ev_io_stop (EV_A_ &w->io);
3333 ev_prepare_stop (EV_A_ &w->prepare); 4244 ev_prepare_stop (EV_A_ &w->prepare);
3334 ev_fork_stop (EV_A_ &w->fork); 4245 ev_fork_stop (EV_A_ &w->fork);
3335 4246
4247 ev_stop (EV_A_ (W)w);
4248
3336 EV_FREQUENT_CHECK; 4249 EV_FREQUENT_CHECK;
3337} 4250}
3338#endif 4251#endif
3339 4252
3340#if EV_FORK_ENABLE 4253#if EV_FORK_ENABLE
3341void 4254void
3342ev_fork_start (EV_P_ ev_fork *w) 4255ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3343{ 4256{
3344 if (expect_false (ev_is_active (w))) 4257 if (expect_false (ev_is_active (w)))
3345 return; 4258 return;
3346 4259
3347 EV_FREQUENT_CHECK; 4260 EV_FREQUENT_CHECK;
… …
3352 4265
3353 EV_FREQUENT_CHECK; 4266 EV_FREQUENT_CHECK;
3354} 4267}
3355 4268
3356void 4269void
3357ev_fork_stop (EV_P_ ev_fork *w) 4270ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3358{ 4271{
3359 clear_pending (EV_A_ (W)w); 4272 clear_pending (EV_A_ (W)w);
3360 if (expect_false (!ev_is_active (w))) 4273 if (expect_false (!ev_is_active (w)))
3361 return; 4274 return;
3362 4275
… …
3373 4286
3374 EV_FREQUENT_CHECK; 4287 EV_FREQUENT_CHECK;
3375} 4288}
3376#endif 4289#endif
3377 4290
4291#if EV_CLEANUP_ENABLE
4292void
4293ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4294{
4295 if (expect_false (ev_is_active (w)))
4296 return;
4297
4298 EV_FREQUENT_CHECK;
4299
4300 ev_start (EV_A_ (W)w, ++cleanupcnt);
4301 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4302 cleanups [cleanupcnt - 1] = w;
4303
4304 /* cleanup watchers should never keep a refcount on the loop */
4305 ev_unref (EV_A);
4306 EV_FREQUENT_CHECK;
4307}
4308
4309void
4310ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4311{
4312 clear_pending (EV_A_ (W)w);
4313 if (expect_false (!ev_is_active (w)))
4314 return;
4315
4316 EV_FREQUENT_CHECK;
4317 ev_ref (EV_A);
4318
4319 {
4320 int active = ev_active (w);
4321
4322 cleanups [active - 1] = cleanups [--cleanupcnt];
4323 ev_active (cleanups [active - 1]) = active;
4324 }
4325
4326 ev_stop (EV_A_ (W)w);
4327
4328 EV_FREQUENT_CHECK;
4329}
4330#endif
4331
3378#if EV_ASYNC_ENABLE 4332#if EV_ASYNC_ENABLE
3379void 4333void
3380ev_async_start (EV_P_ ev_async *w) 4334ev_async_start (EV_P_ ev_async *w) EV_THROW
3381{ 4335{
3382 if (expect_false (ev_is_active (w))) 4336 if (expect_false (ev_is_active (w)))
3383 return; 4337 return;
4338
4339 w->sent = 0;
3384 4340
3385 evpipe_init (EV_A); 4341 evpipe_init (EV_A);
3386 4342
3387 EV_FREQUENT_CHECK; 4343 EV_FREQUENT_CHECK;
3388 4344
… …
3392 4348
3393 EV_FREQUENT_CHECK; 4349 EV_FREQUENT_CHECK;
3394} 4350}
3395 4351
3396void 4352void
3397ev_async_stop (EV_P_ ev_async *w) 4353ev_async_stop (EV_P_ ev_async *w) EV_THROW
3398{ 4354{
3399 clear_pending (EV_A_ (W)w); 4355 clear_pending (EV_A_ (W)w);
3400 if (expect_false (!ev_is_active (w))) 4356 if (expect_false (!ev_is_active (w)))
3401 return; 4357 return;
3402 4358
… …
3413 4369
3414 EV_FREQUENT_CHECK; 4370 EV_FREQUENT_CHECK;
3415} 4371}
3416 4372
3417void 4373void
3418ev_async_send (EV_P_ ev_async *w) 4374ev_async_send (EV_P_ ev_async *w) EV_THROW
3419{ 4375{
3420 w->sent = 1; 4376 w->sent = 1;
3421 evpipe_write (EV_A_ &gotasync); 4377 evpipe_write (EV_A_ &async_pending);
3422} 4378}
3423#endif 4379#endif
3424 4380
3425/*****************************************************************************/ 4381/*****************************************************************************/
3426 4382
… …
3460 4416
3461 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4417 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3462} 4418}
3463 4419
3464void 4420void
3465ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4421ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3466{ 4422{
3467 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4423 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3468 4424
3469 if (expect_false (!once)) 4425 if (expect_false (!once))
3470 { 4426 {
3471 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4427 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3472 return; 4428 return;
3473 } 4429 }
3474 4430
3475 once->cb = cb; 4431 once->cb = cb;
3476 once->arg = arg; 4432 once->arg = arg;
… …
3491} 4447}
3492 4448
3493/*****************************************************************************/ 4449/*****************************************************************************/
3494 4450
3495#if EV_WALK_ENABLE 4451#if EV_WALK_ENABLE
3496void 4452void ecb_cold
3497ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4453ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3498{ 4454{
3499 int i, j; 4455 int i, j;
3500 ev_watcher_list *wl, *wn; 4456 ev_watcher_list *wl, *wn;
3501 4457
3502 if (types & (EV_IO | EV_EMBED)) 4458 if (types & (EV_IO | EV_EMBED))
… …
3545 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4501 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3546#endif 4502#endif
3547 4503
3548#if EV_IDLE_ENABLE 4504#if EV_IDLE_ENABLE
3549 if (types & EV_IDLE) 4505 if (types & EV_IDLE)
3550 for (j = NUMPRI; i--; ) 4506 for (j = NUMPRI; j--; )
3551 for (i = idlecnt [j]; i--; ) 4507 for (i = idlecnt [j]; i--; )
3552 cb (EV_A_ EV_IDLE, idles [j][i]); 4508 cb (EV_A_ EV_IDLE, idles [j][i]);
3553#endif 4509#endif
3554 4510
3555#if EV_FORK_ENABLE 4511#if EV_FORK_ENABLE
… …
3563 if (types & EV_ASYNC) 4519 if (types & EV_ASYNC)
3564 for (i = asynccnt; i--; ) 4520 for (i = asynccnt; i--; )
3565 cb (EV_A_ EV_ASYNC, asyncs [i]); 4521 cb (EV_A_ EV_ASYNC, asyncs [i]);
3566#endif 4522#endif
3567 4523
4524#if EV_PREPARE_ENABLE
3568 if (types & EV_PREPARE) 4525 if (types & EV_PREPARE)
3569 for (i = preparecnt; i--; ) 4526 for (i = preparecnt; i--; )
3570#if EV_EMBED_ENABLE 4527# if EV_EMBED_ENABLE
3571 if (ev_cb (prepares [i]) != embed_prepare_cb) 4528 if (ev_cb (prepares [i]) != embed_prepare_cb)
3572#endif 4529# endif
3573 cb (EV_A_ EV_PREPARE, prepares [i]); 4530 cb (EV_A_ EV_PREPARE, prepares [i]);
4531#endif
3574 4532
4533#if EV_CHECK_ENABLE
3575 if (types & EV_CHECK) 4534 if (types & EV_CHECK)
3576 for (i = checkcnt; i--; ) 4535 for (i = checkcnt; i--; )
3577 cb (EV_A_ EV_CHECK, checks [i]); 4536 cb (EV_A_ EV_CHECK, checks [i]);
4537#endif
3578 4538
4539#if EV_SIGNAL_ENABLE
3579 if (types & EV_SIGNAL) 4540 if (types & EV_SIGNAL)
3580 for (i = 0; i < EV_NSIG - 1; ++i) 4541 for (i = 0; i < EV_NSIG - 1; ++i)
3581 for (wl = signals [i].head; wl; ) 4542 for (wl = signals [i].head; wl; )
3582 { 4543 {
3583 wn = wl->next; 4544 wn = wl->next;
3584 cb (EV_A_ EV_SIGNAL, wl); 4545 cb (EV_A_ EV_SIGNAL, wl);
3585 wl = wn; 4546 wl = wn;
3586 } 4547 }
4548#endif
3587 4549
4550#if EV_CHILD_ENABLE
3588 if (types & EV_CHILD) 4551 if (types & EV_CHILD)
3589 for (i = EV_PID_HASHSIZE; i--; ) 4552 for (i = (EV_PID_HASHSIZE); i--; )
3590 for (wl = childs [i]; wl; ) 4553 for (wl = childs [i]; wl; )
3591 { 4554 {
3592 wn = wl->next; 4555 wn = wl->next;
3593 cb (EV_A_ EV_CHILD, wl); 4556 cb (EV_A_ EV_CHILD, wl);
3594 wl = wn; 4557 wl = wn;
3595 } 4558 }
4559#endif
3596/* EV_STAT 0x00001000 /* stat data changed */ 4560/* EV_STAT 0x00001000 /* stat data changed */
3597/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4561/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3598} 4562}
3599#endif 4563#endif
3600 4564
3601#if EV_MULTIPLICITY 4565#if EV_MULTIPLICITY
3602 #include "ev_wrap.h" 4566 #include "ev_wrap.h"
3603#endif 4567#endif
3604 4568
3605#ifdef __cplusplus
3606}
3607#endif
3608

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