ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.309 by root, Sun Jul 26 04:24:17 2009 UTC vs.
Revision 1.378 by root, Mon Jun 13 09:52:36 2011 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 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
… …
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"
174#endif 186#endif
187
188EV_CPP(extern "C" {)
175 189
176#ifndef _WIN32 190#ifndef _WIN32
177# include <sys/time.h> 191# include <sys/time.h>
178# include <sys/wait.h> 192# include <sys/wait.h>
179# include <unistd.h> 193# include <unistd.h>
… …
182# define WIN32_LEAN_AND_MEAN 196# define WIN32_LEAN_AND_MEAN
183# include <windows.h> 197# include <windows.h>
184# ifndef EV_SELECT_IS_WINSOCKET 198# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 199# define EV_SELECT_IS_WINSOCKET 1
186# endif 200# endif
201# undef EV_AVOID_STDIO
187#endif 202#endif
203
204/* OS X, in its infinite idiocy, actually HARDCODES
205 * a limit of 1024 into their select. Where people have brains,
206 * OS X engineers apparently have a vacuum. Or maybe they were
207 * ordered to have a vacuum, or they do anything for money.
208 * This might help. Or not.
209 */
210#define _DARWIN_UNLIMITED_SELECT 1
188 211
189/* this block tries to deduce configuration from header-defined symbols and defaults */ 212/* this block tries to deduce configuration from header-defined symbols and defaults */
190 213
191/* try to deduce the maximum number of signals on this platform */ 214/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG) 215#if defined (EV_NSIG)
… …
204#elif defined (MAXSIG) 227#elif defined (MAXSIG)
205# define EV_NSIG (MAXSIG+1) 228# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG) 229#elif defined (MAX_SIG)
207# define EV_NSIG (MAX_SIG+1) 230# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE) 231#elif defined (SIGARRAYSIZE)
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig) 233#elif defined (_sys_nsig)
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else 235#else
213# error "unable to find value for NSIG, please report" 236# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */ 237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
215# define EV_NSIG 65 239# define EV_NSIG 65
240#endif
241
242#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0
216#endif 244#endif
217 245
218#ifndef EV_USE_CLOCK_SYSCALL 246#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2 247# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1 248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221# else 249# else
222# define EV_USE_CLOCK_SYSCALL 0 250# define EV_USE_CLOCK_SYSCALL 0
223# endif 251# endif
224#endif 252#endif
225 253
226#ifndef EV_USE_MONOTONIC 254#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1 256# define EV_USE_MONOTONIC EV_FEATURE_OS
229# else 257# else
230# define EV_USE_MONOTONIC 0 258# define EV_USE_MONOTONIC 0
231# endif 259# endif
232#endif 260#endif
233 261
… …
235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 263# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236#endif 264#endif
237 265
238#ifndef EV_USE_NANOSLEEP 266#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L 267# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1 268# define EV_USE_NANOSLEEP EV_FEATURE_OS
241# else 269# else
242# define EV_USE_NANOSLEEP 0 270# define EV_USE_NANOSLEEP 0
243# endif 271# endif
244#endif 272#endif
245 273
246#ifndef EV_USE_SELECT 274#ifndef EV_USE_SELECT
247# define EV_USE_SELECT 1 275# define EV_USE_SELECT EV_FEATURE_BACKENDS
248#endif 276#endif
249 277
250#ifndef EV_USE_POLL 278#ifndef EV_USE_POLL
251# ifdef _WIN32 279# ifdef _WIN32
252# define EV_USE_POLL 0 280# define EV_USE_POLL 0
253# else 281# else
254# define EV_USE_POLL 1 282# define EV_USE_POLL EV_FEATURE_BACKENDS
255# endif 283# endif
256#endif 284#endif
257 285
258#ifndef EV_USE_EPOLL 286#ifndef EV_USE_EPOLL
259# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 287# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260# define EV_USE_EPOLL 1 288# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261# else 289# else
262# define EV_USE_EPOLL 0 290# define EV_USE_EPOLL 0
263# endif 291# endif
264#endif 292#endif
265 293
… …
271# define EV_USE_PORT 0 299# define EV_USE_PORT 0
272#endif 300#endif
273 301
274#ifndef EV_USE_INOTIFY 302#ifndef EV_USE_INOTIFY
275# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276# define EV_USE_INOTIFY 1 304# define EV_USE_INOTIFY EV_FEATURE_OS
277# else 305# else
278# define EV_USE_INOTIFY 0 306# define EV_USE_INOTIFY 0
279# endif 307# endif
280#endif 308#endif
281 309
282#ifndef EV_PID_HASHSIZE 310#ifndef EV_PID_HASHSIZE
283# if EV_MINIMAL 311# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
284# define EV_PID_HASHSIZE 1
285# else
286# define EV_PID_HASHSIZE 16
287# endif
288#endif 312#endif
289 313
290#ifndef EV_INOTIFY_HASHSIZE 314#ifndef EV_INOTIFY_HASHSIZE
291# if EV_MINIMAL 315# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
292# define EV_INOTIFY_HASHSIZE 1
293# else
294# define EV_INOTIFY_HASHSIZE 16
295# endif
296#endif 316#endif
297 317
298#ifndef EV_USE_EVENTFD 318#ifndef EV_USE_EVENTFD
299# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300# define EV_USE_EVENTFD 1 320# define EV_USE_EVENTFD EV_FEATURE_OS
301# else 321# else
302# define EV_USE_EVENTFD 0 322# define EV_USE_EVENTFD 0
303# endif 323# endif
304#endif 324#endif
305 325
306#ifndef EV_USE_SIGNALFD 326#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) 327# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308# define EV_USE_SIGNALFD 1 328# define EV_USE_SIGNALFD EV_FEATURE_OS
309# else 329# else
310# define EV_USE_SIGNALFD 0 330# define EV_USE_SIGNALFD 0
311# endif 331# endif
312#endif 332#endif
313 333
… …
316# define EV_USE_4HEAP 1 336# define EV_USE_4HEAP 1
317# define EV_HEAP_CACHE_AT 1 337# define EV_HEAP_CACHE_AT 1
318#endif 338#endif
319 339
320#ifndef EV_VERIFY 340#ifndef EV_VERIFY
321# define EV_VERIFY !EV_MINIMAL 341# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322#endif 342#endif
323 343
324#ifndef EV_USE_4HEAP 344#ifndef EV_USE_4HEAP
325# define EV_USE_4HEAP !EV_MINIMAL 345# define EV_USE_4HEAP EV_FEATURE_DATA
326#endif 346#endif
327 347
328#ifndef EV_HEAP_CACHE_AT 348#ifndef EV_HEAP_CACHE_AT
329# define EV_HEAP_CACHE_AT !EV_MINIMAL 349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330#endif 350#endif
331 351
332/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333/* which makes programs even slower. might work on other unices, too. */ 353/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL 354#if EV_USE_CLOCK_SYSCALL
… …
343# endif 363# endif
344#endif 364#endif
345 365
346/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 366/* this block fixes any misconfiguration where we know we run into trouble otherwise */
347 367
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
348#ifndef CLOCK_MONOTONIC 374#ifndef CLOCK_MONOTONIC
349# undef EV_USE_MONOTONIC 375# undef EV_USE_MONOTONIC
350# define EV_USE_MONOTONIC 0 376# define EV_USE_MONOTONIC 0
351#endif 377#endif
352 378
… …
359# undef EV_USE_INOTIFY 385# undef EV_USE_INOTIFY
360# define EV_USE_INOTIFY 0 386# define EV_USE_INOTIFY 0
361#endif 387#endif
362 388
363#if !EV_USE_NANOSLEEP 389#if !EV_USE_NANOSLEEP
364# ifndef _WIN32 390/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux)
365# include <sys/select.h> 392# include <sys/select.h>
366# endif 393# endif
367#endif 394#endif
368 395
369#if EV_USE_INOTIFY 396#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h> 397# include <sys/statfs.h>
372# include <sys/inotify.h> 398# include <sys/inotify.h>
373/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
374# ifndef IN_DONT_FOLLOW 400# ifndef IN_DONT_FOLLOW
375# undef EV_USE_INOTIFY 401# undef EV_USE_INOTIFY
… …
386# include <stdint.h> 412# include <stdint.h>
387# ifndef EFD_NONBLOCK 413# ifndef EFD_NONBLOCK
388# define EFD_NONBLOCK O_NONBLOCK 414# define EFD_NONBLOCK O_NONBLOCK
389# endif 415# endif
390# ifndef EFD_CLOEXEC 416# ifndef EFD_CLOEXEC
417# ifdef O_CLOEXEC
391# define EFD_CLOEXEC O_CLOEXEC 418# define EFD_CLOEXEC O_CLOEXEC
419# else
420# define EFD_CLOEXEC 02000000
421# endif
392# endif 422# endif
393# ifdef __cplusplus 423EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
394extern "C" { 424#endif
425
426#if EV_USE_SIGNALFD
427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
428# include <stdint.h>
429# ifndef SFD_NONBLOCK
430# define SFD_NONBLOCK O_NONBLOCK
395# endif 431# endif
396int eventfd (unsigned int initval, int flags); 432# ifndef SFD_CLOEXEC
397# ifdef __cplusplus 433# ifdef O_CLOEXEC
398} 434# define SFD_CLOEXEC O_CLOEXEC
435# else
436# define SFD_CLOEXEC 02000000
437# endif
399# endif 438# endif
400#endif 439EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
401 440
402#if EV_USE_SIGNALFD 441struct signalfd_siginfo
403# include <sys/signalfd.h> 442{
443 uint32_t ssi_signo;
444 char pad[128 - sizeof (uint32_t)];
445};
404#endif 446#endif
405 447
406/**/ 448/**/
407 449
408#if EV_VERIFY >= 3 450#if EV_VERIFY >= 3
409# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 451# define EV_FREQUENT_CHECK ev_verify (EV_A)
410#else 452#else
411# define EV_FREQUENT_CHECK do { } while (0) 453# define EV_FREQUENT_CHECK do { } while (0)
412#endif 454#endif
413 455
414/* 456/*
415 * This is used to avoid floating point rounding problems. 457 * This is used to work around floating point rounding problems.
416 * It is added to ev_rt_now when scheduling periodics
417 * to ensure progress, time-wise, even when rounding
418 * errors are against us.
419 * This value is good at least till the year 4000. 458 * This value is good at least till the year 4000.
420 * Better solutions welcome.
421 */ 459 */
422#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 460#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
461/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
423 462
424#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 463#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
425#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
426/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ 465
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
427 468
428#if __GNUC__ >= 4 469#if __GNUC__ >= 4
429# define expect(expr,value) __builtin_expect ((expr),(value)) 470# define expect(expr,value) __builtin_expect ((expr),(value))
430# define noinline __attribute__ ((noinline)) 471# define noinline __attribute__ ((noinline))
431#else 472#else
… …
438 479
439#define expect_false(expr) expect ((expr) != 0, 0) 480#define expect_false(expr) expect ((expr) != 0, 0)
440#define expect_true(expr) expect ((expr) != 0, 1) 481#define expect_true(expr) expect ((expr) != 0, 1)
441#define inline_size static inline 482#define inline_size static inline
442 483
443#if EV_MINIMAL 484#if EV_FEATURE_CODE
485# define inline_speed static inline
486#else
444# define inline_speed static noinline 487# define inline_speed static noinline
445#else
446# define inline_speed static inline
447#endif 488#endif
448 489
449#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 490#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
450 491
451#if EV_MINPRI == EV_MAXPRI 492#if EV_MINPRI == EV_MAXPRI
… …
464#define ev_active(w) ((W)(w))->active 505#define ev_active(w) ((W)(w))->active
465#define ev_at(w) ((WT)(w))->at 506#define ev_at(w) ((WT)(w))->at
466 507
467#if EV_USE_REALTIME 508#if EV_USE_REALTIME
468/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 509/* sig_atomic_t is used to avoid per-thread variables or locking but still */
469/* giving it a reasonably high chance of working on typical architetcures */ 510/* giving it a reasonably high chance of working on typical architectures */
470static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 511static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
471#endif 512#endif
472 513
473#if EV_USE_MONOTONIC 514#if EV_USE_MONOTONIC
474static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 515static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
475#endif 516#endif
476 517
518#ifndef EV_FD_TO_WIN32_HANDLE
519# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
520#endif
521#ifndef EV_WIN32_HANDLE_TO_FD
522# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
523#endif
524#ifndef EV_WIN32_CLOSE_FD
525# define EV_WIN32_CLOSE_FD(fd) close (fd)
526#endif
527
477#ifdef _WIN32 528#ifdef _WIN32
478# include "ev_win32.c" 529# include "ev_win32.c"
479#endif 530#endif
480 531
481/*****************************************************************************/ 532/*****************************************************************************/
533
534/* define a suitable floor function (only used by periodics atm) */
535
536#if EV_USE_FLOOR
537# include <math.h>
538# define ev_floor(v) floor (v)
539#else
540
541#include <float.h>
542
543/* a floor() replacement function, should be independent of ev_tstamp type */
544static ev_tstamp noinline
545ev_floor (ev_tstamp v)
546{
547 /* the choice of shift factor is not terribly important */
548#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
549 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
550#else
551 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
552#endif
553
554 /* argument too large for an unsigned long? */
555 if (expect_false (v >= shift))
556 {
557 ev_tstamp f;
558
559 if (v == v - 1.)
560 return v; /* very large number */
561
562 f = shift * ev_floor (v * (1. / shift));
563 return f + ev_floor (v - f);
564 }
565
566 /* special treatment for negative args? */
567 if (expect_false (v < 0.))
568 {
569 ev_tstamp f = -ev_floor (-v);
570
571 return f - (f == v ? 0 : 1);
572 }
573
574 /* fits into an unsigned long */
575 return (unsigned long)v;
576}
577
578#endif
579
580/*****************************************************************************/
581
582#ifdef __linux
583# include <sys/utsname.h>
584#endif
585
586static unsigned int noinline
587ev_linux_version (void)
588{
589#ifdef __linux
590 unsigned int v = 0;
591 struct utsname buf;
592 int i;
593 char *p = buf.release;
594
595 if (uname (&buf))
596 return 0;
597
598 for (i = 3+1; --i; )
599 {
600 unsigned int c = 0;
601
602 for (;;)
603 {
604 if (*p >= '0' && *p <= '9')
605 c = c * 10 + *p++ - '0';
606 else
607 {
608 p += *p == '.';
609 break;
610 }
611 }
612
613 v = (v << 8) | c;
614 }
615
616 return v;
617#else
618 return 0;
619#endif
620}
621
622/*****************************************************************************/
623
624#if EV_AVOID_STDIO
625static void noinline
626ev_printerr (const char *msg)
627{
628 write (STDERR_FILENO, msg, strlen (msg));
629}
630#endif
482 631
483static void (*syserr_cb)(const char *msg); 632static void (*syserr_cb)(const char *msg);
484 633
485void 634void
486ev_set_syserr_cb (void (*cb)(const char *msg)) 635ev_set_syserr_cb (void (*cb)(const char *msg))
… …
496 645
497 if (syserr_cb) 646 if (syserr_cb)
498 syserr_cb (msg); 647 syserr_cb (msg);
499 else 648 else
500 { 649 {
650#if EV_AVOID_STDIO
651 ev_printerr (msg);
652 ev_printerr (": ");
653 ev_printerr (strerror (errno));
654 ev_printerr ("\n");
655#else
501 perror (msg); 656 perror (msg);
657#endif
502 abort (); 658 abort ();
503 } 659 }
504} 660}
505 661
506static void * 662static void *
507ev_realloc_emul (void *ptr, long size) 663ev_realloc_emul (void *ptr, long size)
508{ 664{
665#if __GLIBC__
666 return realloc (ptr, size);
667#else
509 /* some systems, notably openbsd and darwin, fail to properly 668 /* some systems, notably openbsd and darwin, fail to properly
510 * implement realloc (x, 0) (as required by both ansi c-98 and 669 * implement realloc (x, 0) (as required by both ansi c-89 and
511 * the single unix specification, so work around them here. 670 * the single unix specification, so work around them here.
512 */ 671 */
513 672
514 if (size) 673 if (size)
515 return realloc (ptr, size); 674 return realloc (ptr, size);
516 675
517 free (ptr); 676 free (ptr);
518 return 0; 677 return 0;
678#endif
519} 679}
520 680
521static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 681static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
522 682
523void 683void
… …
531{ 691{
532 ptr = alloc (ptr, size); 692 ptr = alloc (ptr, size);
533 693
534 if (!ptr && size) 694 if (!ptr && size)
535 { 695 {
696#if EV_AVOID_STDIO
697 ev_printerr ("(libev) memory allocation failed, aborting.\n");
698#else
536 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 699 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
700#endif
537 abort (); 701 abort ();
538 } 702 }
539 703
540 return ptr; 704 return ptr;
541} 705}
… …
557 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 721 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
558 unsigned char unused; 722 unsigned char unused;
559#if EV_USE_EPOLL 723#if EV_USE_EPOLL
560 unsigned int egen; /* generation counter to counter epoll bugs */ 724 unsigned int egen; /* generation counter to counter epoll bugs */
561#endif 725#endif
562#if EV_SELECT_IS_WINSOCKET 726#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
563 SOCKET handle; 727 SOCKET handle;
728#endif
729#if EV_USE_IOCP
730 OVERLAPPED or, ow;
564#endif 731#endif
565} ANFD; 732} ANFD;
566 733
567/* stores the pending event set for a given watcher */ 734/* stores the pending event set for a given watcher */
568typedef struct 735typedef struct
… …
623 790
624 static int ev_default_loop_ptr; 791 static int ev_default_loop_ptr;
625 792
626#endif 793#endif
627 794
628#if EV_MINIMAL < 2 795#if EV_FEATURE_API
629# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 796# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
630# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 797# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
631# define EV_INVOKE_PENDING invoke_cb (EV_A) 798# define EV_INVOKE_PENDING invoke_cb (EV_A)
632#else 799#else
633# define EV_RELEASE_CB (void)0 800# define EV_RELEASE_CB (void)0
634# define EV_ACQUIRE_CB (void)0 801# define EV_ACQUIRE_CB (void)0
635# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 802# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
636#endif 803#endif
637 804
638#define EVUNLOOP_RECURSE 0x80 805#define EVBREAK_RECURSE 0x80
639 806
640/*****************************************************************************/ 807/*****************************************************************************/
641 808
642#ifndef EV_HAVE_EV_TIME 809#ifndef EV_HAVE_EV_TIME
643ev_tstamp 810ev_tstamp
… …
687 if (delay > 0.) 854 if (delay > 0.)
688 { 855 {
689#if EV_USE_NANOSLEEP 856#if EV_USE_NANOSLEEP
690 struct timespec ts; 857 struct timespec ts;
691 858
692 ts.tv_sec = (time_t)delay; 859 EV_TS_SET (ts, delay);
693 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
694
695 nanosleep (&ts, 0); 860 nanosleep (&ts, 0);
696#elif defined(_WIN32) 861#elif defined(_WIN32)
697 Sleep ((unsigned long)(delay * 1e3)); 862 Sleep ((unsigned long)(delay * 1e3));
698#else 863#else
699 struct timeval tv; 864 struct timeval tv;
700 865
701 tv.tv_sec = (time_t)delay;
702 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
703
704 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 866 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
705 /* something not guaranteed by newer posix versions, but guaranteed */ 867 /* something not guaranteed by newer posix versions, but guaranteed */
706 /* by older ones */ 868 /* by older ones */
869 EV_TV_SET (tv, delay);
707 select (0, 0, 0, 0, &tv); 870 select (0, 0, 0, 0, &tv);
708#endif 871#endif
709 } 872 }
710} 873}
711 874
712/*****************************************************************************/ 875/*****************************************************************************/
713 876
714#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 877#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
715 878
716/* find a suitable new size for the given array, */ 879/* find a suitable new size for the given array, */
717/* hopefully by rounding to a ncie-to-malloc size */ 880/* hopefully by rounding to a nice-to-malloc size */
718inline_size int 881inline_size int
719array_nextsize (int elem, int cur, int cnt) 882array_nextsize (int elem, int cur, int cnt)
720{ 883{
721 int ncur = cur + 1; 884 int ncur = cur + 1;
722 885
… …
818} 981}
819 982
820/*****************************************************************************/ 983/*****************************************************************************/
821 984
822inline_speed void 985inline_speed void
823fd_event_nc (EV_P_ int fd, int revents) 986fd_event_nocheck (EV_P_ int fd, int revents)
824{ 987{
825 ANFD *anfd = anfds + fd; 988 ANFD *anfd = anfds + fd;
826 ev_io *w; 989 ev_io *w;
827 990
828 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 991 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
840fd_event (EV_P_ int fd, int revents) 1003fd_event (EV_P_ int fd, int revents)
841{ 1004{
842 ANFD *anfd = anfds + fd; 1005 ANFD *anfd = anfds + fd;
843 1006
844 if (expect_true (!anfd->reify)) 1007 if (expect_true (!anfd->reify))
845 fd_event_nc (EV_A_ fd, revents); 1008 fd_event_nocheck (EV_A_ fd, revents);
846} 1009}
847 1010
848void 1011void
849ev_feed_fd_event (EV_P_ int fd, int revents) 1012ev_feed_fd_event (EV_P_ int fd, int revents)
850{ 1013{
851 if (fd >= 0 && fd < anfdmax) 1014 if (fd >= 0 && fd < anfdmax)
852 fd_event_nc (EV_A_ fd, revents); 1015 fd_event_nocheck (EV_A_ fd, revents);
853} 1016}
854 1017
855/* make sure the external fd watch events are in-sync */ 1018/* make sure the external fd watch events are in-sync */
856/* with the kernel/libev internal state */ 1019/* with the kernel/libev internal state */
857inline_size void 1020inline_size void
858fd_reify (EV_P) 1021fd_reify (EV_P)
859{ 1022{
860 int i; 1023 int i;
861 1024
1025#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1026 for (i = 0; i < fdchangecnt; ++i)
1027 {
1028 int fd = fdchanges [i];
1029 ANFD *anfd = anfds + fd;
1030
1031 if (anfd->reify & EV__IOFDSET && anfd->head)
1032 {
1033 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1034
1035 if (handle != anfd->handle)
1036 {
1037 unsigned long arg;
1038
1039 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1040
1041 /* handle changed, but fd didn't - we need to do it in two steps */
1042 backend_modify (EV_A_ fd, anfd->events, 0);
1043 anfd->events = 0;
1044 anfd->handle = handle;
1045 }
1046 }
1047 }
1048#endif
1049
862 for (i = 0; i < fdchangecnt; ++i) 1050 for (i = 0; i < fdchangecnt; ++i)
863 { 1051 {
864 int fd = fdchanges [i]; 1052 int fd = fdchanges [i];
865 ANFD *anfd = anfds + fd; 1053 ANFD *anfd = anfds + fd;
866 ev_io *w; 1054 ev_io *w;
867 1055
868 unsigned char events = 0; 1056 unsigned char o_events = anfd->events;
1057 unsigned char o_reify = anfd->reify;
869 1058
870 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1059 anfd->reify = 0;
871 events |= (unsigned char)w->events;
872 1060
873#if EV_SELECT_IS_WINSOCKET 1061 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
874 if (events)
875 { 1062 {
876 unsigned long arg; 1063 anfd->events = 0;
877 #ifdef EV_FD_TO_WIN32_HANDLE 1064
878 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1065 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
879 #else 1066 anfd->events |= (unsigned char)w->events;
880 anfd->handle = _get_osfhandle (fd); 1067
881 #endif 1068 if (o_events != anfd->events)
882 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1069 o_reify = EV__IOFDSET; /* actually |= */
883 } 1070 }
884#endif
885 1071
886 { 1072 if (o_reify & EV__IOFDSET)
887 unsigned char o_events = anfd->events;
888 unsigned char o_reify = anfd->reify;
889
890 anfd->reify = 0;
891 anfd->events = events;
892
893 if (o_events != events || o_reify & EV__IOFDSET)
894 backend_modify (EV_A_ fd, o_events, events); 1073 backend_modify (EV_A_ fd, o_events, anfd->events);
895 }
896 } 1074 }
897 1075
898 fdchangecnt = 0; 1076 fdchangecnt = 0;
899} 1077}
900 1078
… …
924 ev_io_stop (EV_A_ w); 1102 ev_io_stop (EV_A_ w);
925 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1103 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
926 } 1104 }
927} 1105}
928 1106
929/* check whether the given fd is atcually valid, for error recovery */ 1107/* check whether the given fd is actually valid, for error recovery */
930inline_size int 1108inline_size int
931fd_valid (int fd) 1109fd_valid (int fd)
932{ 1110{
933#ifdef _WIN32 1111#ifdef _WIN32
934 return _get_osfhandle (fd) != -1; 1112 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
935#else 1113#else
936 return fcntl (fd, F_GETFD) != -1; 1114 return fcntl (fd, F_GETFD) != -1;
937#endif 1115#endif
938} 1116}
939 1117
… …
976 anfds [fd].emask = 0; 1154 anfds [fd].emask = 0;
977 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1155 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
978 } 1156 }
979} 1157}
980 1158
1159/* used to prepare libev internal fd's */
1160/* this is not fork-safe */
1161inline_speed void
1162fd_intern (int fd)
1163{
1164#ifdef _WIN32
1165 unsigned long arg = 1;
1166 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1167#else
1168 fcntl (fd, F_SETFD, FD_CLOEXEC);
1169 fcntl (fd, F_SETFL, O_NONBLOCK);
1170#endif
1171}
1172
981/*****************************************************************************/ 1173/*****************************************************************************/
982 1174
983/* 1175/*
984 * the heap functions want a real array index. array index 0 uis guaranteed to not 1176 * the heap functions want a real array index. array index 0 is guaranteed to not
985 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1177 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
986 * the branching factor of the d-tree. 1178 * the branching factor of the d-tree.
987 */ 1179 */
988 1180
989/* 1181/*
… …
1103 1295
1104/* move an element suitably so it is in a correct place */ 1296/* move an element suitably so it is in a correct place */
1105inline_size void 1297inline_size void
1106adjustheap (ANHE *heap, int N, int k) 1298adjustheap (ANHE *heap, int N, int k)
1107{ 1299{
1108 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1300 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1109 upheap (heap, k); 1301 upheap (heap, k);
1110 else 1302 else
1111 downheap (heap, N, k); 1303 downheap (heap, N, k);
1112} 1304}
1113 1305
… …
1137 1329
1138static ANSIG signals [EV_NSIG - 1]; 1330static ANSIG signals [EV_NSIG - 1];
1139 1331
1140/*****************************************************************************/ 1332/*****************************************************************************/
1141 1333
1142/* used to prepare libev internal fd's */ 1334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1143/* this is not fork-safe */
1144inline_speed void
1145fd_intern (int fd)
1146{
1147#ifdef _WIN32
1148 unsigned long arg = 1;
1149 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1150#else
1151 fcntl (fd, F_SETFD, FD_CLOEXEC);
1152 fcntl (fd, F_SETFL, O_NONBLOCK);
1153#endif
1154}
1155 1335
1156static void noinline 1336static void noinline
1157evpipe_init (EV_P) 1337evpipe_init (EV_P)
1158{ 1338{
1159 if (!ev_is_active (&pipe_w)) 1339 if (!ev_is_active (&pipe_w))
1160 { 1340 {
1161#if EV_USE_EVENTFD 1341# if EV_USE_EVENTFD
1162 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1342 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1163 if (evfd < 0 && errno == EINVAL) 1343 if (evfd < 0 && errno == EINVAL)
1164 evfd = eventfd (0, 0); 1344 evfd = eventfd (0, 0);
1165 1345
1166 if (evfd >= 0) 1346 if (evfd >= 0)
… …
1168 evpipe [0] = -1; 1348 evpipe [0] = -1;
1169 fd_intern (evfd); /* doing it twice doesn't hurt */ 1349 fd_intern (evfd); /* doing it twice doesn't hurt */
1170 ev_io_set (&pipe_w, evfd, EV_READ); 1350 ev_io_set (&pipe_w, evfd, EV_READ);
1171 } 1351 }
1172 else 1352 else
1173#endif 1353# endif
1174 { 1354 {
1175 while (pipe (evpipe)) 1355 while (pipe (evpipe))
1176 ev_syserr ("(libev) error creating signal/async pipe"); 1356 ev_syserr ("(libev) error creating signal/async pipe");
1177 1357
1178 fd_intern (evpipe [0]); 1358 fd_intern (evpipe [0]);
… …
1188inline_size void 1368inline_size void
1189evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1369evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1190{ 1370{
1191 if (!*flag) 1371 if (!*flag)
1192 { 1372 {
1193 int old_errno = errno; /* save errno because write might clobber it */
1194
1195 *flag = 1; 1373 *flag = 1;
1196 1374
1375 pipe_write_skipped = 1;
1376
1377 if (pipe_write_wanted)
1378 {
1379 int old_errno = errno; /* save errno because write will clobber it */
1380 char dummy;
1381
1382 pipe_write_skipped = 0;
1383
1197#if EV_USE_EVENTFD 1384#if EV_USE_EVENTFD
1198 if (evfd >= 0) 1385 if (evfd >= 0)
1199 { 1386 {
1200 uint64_t counter = 1; 1387 uint64_t counter = 1;
1201 write (evfd, &counter, sizeof (uint64_t)); 1388 write (evfd, &counter, sizeof (uint64_t));
1389 }
1390 else
1391#endif
1392 {
1393 /* win32 people keep sending patches that change this write() to send() */
1394 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1395 /* so when you think this write should be a send instead, please find out */
1396 /* where your send() is from - it's definitely not the microsoft send, and */
1397 /* tell me. thank you. */
1398 write (evpipe [1], &dummy, 1);
1399 }
1400
1401 errno = old_errno;
1202 } 1402 }
1203 else
1204#endif
1205 write (evpipe [1], &old_errno, 1);
1206
1207 errno = old_errno;
1208 } 1403 }
1209} 1404}
1210 1405
1211/* called whenever the libev signal pipe */ 1406/* called whenever the libev signal pipe */
1212/* got some events (signal, async) */ 1407/* got some events (signal, async) */
1213static void 1408static void
1214pipecb (EV_P_ ev_io *iow, int revents) 1409pipecb (EV_P_ ev_io *iow, int revents)
1215{ 1410{
1216 int i; 1411 int i;
1217 1412
1413 if (revents & EV_READ)
1414 {
1218#if EV_USE_EVENTFD 1415#if EV_USE_EVENTFD
1219 if (evfd >= 0) 1416 if (evfd >= 0)
1220 { 1417 {
1221 uint64_t counter; 1418 uint64_t counter;
1222 read (evfd, &counter, sizeof (uint64_t)); 1419 read (evfd, &counter, sizeof (uint64_t));
1223 } 1420 }
1224 else 1421 else
1225#endif 1422#endif
1226 { 1423 {
1227 char dummy; 1424 char dummy;
1425 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1228 read (evpipe [0], &dummy, 1); 1426 read (evpipe [0], &dummy, 1);
1427 }
1229 } 1428 }
1230 1429
1430 pipe_write_skipped = 0;
1431
1432#if EV_SIGNAL_ENABLE
1231 if (sig_pending) 1433 if (sig_pending)
1232 { 1434 {
1233 sig_pending = 0; 1435 sig_pending = 0;
1234 1436
1235 for (i = EV_NSIG - 1; i--; ) 1437 for (i = EV_NSIG - 1; i--; )
1236 if (expect_false (signals [i].pending)) 1438 if (expect_false (signals [i].pending))
1237 ev_feed_signal_event (EV_A_ i + 1); 1439 ev_feed_signal_event (EV_A_ i + 1);
1238 } 1440 }
1441#endif
1239 1442
1240#if EV_ASYNC_ENABLE 1443#if EV_ASYNC_ENABLE
1241 if (async_pending) 1444 if (async_pending)
1242 { 1445 {
1243 async_pending = 0; 1446 async_pending = 0;
… …
1252#endif 1455#endif
1253} 1456}
1254 1457
1255/*****************************************************************************/ 1458/*****************************************************************************/
1256 1459
1460void
1461ev_feed_signal (int signum)
1462{
1463#if EV_MULTIPLICITY
1464 EV_P = signals [signum - 1].loop;
1465
1466 if (!EV_A)
1467 return;
1468#endif
1469
1470 evpipe_init (EV_A);
1471
1472 signals [signum - 1].pending = 1;
1473 evpipe_write (EV_A_ &sig_pending);
1474}
1475
1257static void 1476static void
1258ev_sighandler (int signum) 1477ev_sighandler (int signum)
1259{ 1478{
1260#if EV_MULTIPLICITY
1261 EV_P = signals [signum - 1].loop;
1262#endif
1263
1264#if _WIN32 1479#ifdef _WIN32
1265 signal (signum, ev_sighandler); 1480 signal (signum, ev_sighandler);
1266#endif 1481#endif
1267 1482
1268 signals [signum - 1].pending = 1; 1483 ev_feed_signal (signum);
1269 evpipe_write (EV_A_ &sig_pending);
1270} 1484}
1271 1485
1272void noinline 1486void noinline
1273ev_feed_signal_event (EV_P_ int signum) 1487ev_feed_signal_event (EV_P_ int signum)
1274{ 1488{
… …
1311 break; 1525 break;
1312 } 1526 }
1313} 1527}
1314#endif 1528#endif
1315 1529
1530#endif
1531
1316/*****************************************************************************/ 1532/*****************************************************************************/
1317 1533
1534#if EV_CHILD_ENABLE
1318static WL childs [EV_PID_HASHSIZE]; 1535static WL childs [EV_PID_HASHSIZE];
1319
1320#ifndef _WIN32
1321 1536
1322static ev_signal childev; 1537static ev_signal childev;
1323 1538
1324#ifndef WIFCONTINUED 1539#ifndef WIFCONTINUED
1325# define WIFCONTINUED(status) 0 1540# define WIFCONTINUED(status) 0
… …
1330child_reap (EV_P_ int chain, int pid, int status) 1545child_reap (EV_P_ int chain, int pid, int status)
1331{ 1546{
1332 ev_child *w; 1547 ev_child *w;
1333 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1548 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1334 1549
1335 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1550 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1336 { 1551 {
1337 if ((w->pid == pid || !w->pid) 1552 if ((w->pid == pid || !w->pid)
1338 && (!traced || (w->flags & 1))) 1553 && (!traced || (w->flags & 1)))
1339 { 1554 {
1340 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1555 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1365 /* make sure we are called again until all children have been reaped */ 1580 /* make sure we are called again until all children have been reaped */
1366 /* we need to do it this way so that the callback gets called before we continue */ 1581 /* we need to do it this way so that the callback gets called before we continue */
1367 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1582 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1368 1583
1369 child_reap (EV_A_ pid, pid, status); 1584 child_reap (EV_A_ pid, pid, status);
1370 if (EV_PID_HASHSIZE > 1) 1585 if ((EV_PID_HASHSIZE) > 1)
1371 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1586 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1372} 1587}
1373 1588
1374#endif 1589#endif
1375 1590
1376/*****************************************************************************/ 1591/*****************************************************************************/
1377 1592
1593#if EV_USE_IOCP
1594# include "ev_iocp.c"
1595#endif
1378#if EV_USE_PORT 1596#if EV_USE_PORT
1379# include "ev_port.c" 1597# include "ev_port.c"
1380#endif 1598#endif
1381#if EV_USE_KQUEUE 1599#if EV_USE_KQUEUE
1382# include "ev_kqueue.c" 1600# include "ev_kqueue.c"
… …
1442#ifdef __APPLE__ 1660#ifdef __APPLE__
1443 /* only select works correctly on that "unix-certified" platform */ 1661 /* only select works correctly on that "unix-certified" platform */
1444 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1662 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1445 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1663 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1446#endif 1664#endif
1665#ifdef __FreeBSD__
1666 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1667#endif
1447 1668
1448 return flags; 1669 return flags;
1449} 1670}
1450 1671
1451unsigned int 1672unsigned int
1452ev_embeddable_backends (void) 1673ev_embeddable_backends (void)
1453{ 1674{
1454 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1675 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1455 1676
1456 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1677 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1457 /* please fix it and tell me how to detect the fix */ 1678 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1458 flags &= ~EVBACKEND_EPOLL; 1679 flags &= ~EVBACKEND_EPOLL;
1459 1680
1460 return flags; 1681 return flags;
1461} 1682}
1462 1683
1463unsigned int 1684unsigned int
1464ev_backend (EV_P) 1685ev_backend (EV_P)
1465{ 1686{
1466 return backend; 1687 return backend;
1467} 1688}
1468 1689
1469#if EV_MINIMAL < 2 1690#if EV_FEATURE_API
1470unsigned int 1691unsigned int
1471ev_loop_count (EV_P) 1692ev_iteration (EV_P)
1472{ 1693{
1473 return loop_count; 1694 return loop_count;
1474} 1695}
1475 1696
1476unsigned int 1697unsigned int
1477ev_loop_depth (EV_P) 1698ev_depth (EV_P)
1478{ 1699{
1479 return loop_depth; 1700 return loop_depth;
1480} 1701}
1481 1702
1482void 1703void
… …
1519static void noinline 1740static void noinline
1520loop_init (EV_P_ unsigned int flags) 1741loop_init (EV_P_ unsigned int flags)
1521{ 1742{
1522 if (!backend) 1743 if (!backend)
1523 { 1744 {
1745 origflags = flags;
1746
1524#if EV_USE_REALTIME 1747#if EV_USE_REALTIME
1525 if (!have_realtime) 1748 if (!have_realtime)
1526 { 1749 {
1527 struct timespec ts; 1750 struct timespec ts;
1528 1751
… …
1550 if (!(flags & EVFLAG_NOENV) 1773 if (!(flags & EVFLAG_NOENV)
1551 && !enable_secure () 1774 && !enable_secure ()
1552 && getenv ("LIBEV_FLAGS")) 1775 && getenv ("LIBEV_FLAGS"))
1553 flags = atoi (getenv ("LIBEV_FLAGS")); 1776 flags = atoi (getenv ("LIBEV_FLAGS"));
1554 1777
1555 ev_rt_now = ev_time (); 1778 ev_rt_now = ev_time ();
1556 mn_now = get_clock (); 1779 mn_now = get_clock ();
1557 now_floor = mn_now; 1780 now_floor = mn_now;
1558 rtmn_diff = ev_rt_now - mn_now; 1781 rtmn_diff = ev_rt_now - mn_now;
1559#if EV_MINIMAL < 2 1782#if EV_FEATURE_API
1560 invoke_cb = ev_invoke_pending; 1783 invoke_cb = ev_invoke_pending;
1561#endif 1784#endif
1562 1785
1563 io_blocktime = 0.; 1786 io_blocktime = 0.;
1564 timeout_blocktime = 0.; 1787 timeout_blocktime = 0.;
1565 backend = 0; 1788 backend = 0;
1566 backend_fd = -1; 1789 backend_fd = -1;
1567 sig_pending = 0; 1790 sig_pending = 0;
1568#if EV_ASYNC_ENABLE 1791#if EV_ASYNC_ENABLE
1569 async_pending = 0; 1792 async_pending = 0;
1570#endif 1793#endif
1794 pipe_write_skipped = 0;
1795 pipe_write_wanted = 0;
1571#if EV_USE_INOTIFY 1796#if EV_USE_INOTIFY
1572 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1797 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1573#endif 1798#endif
1574#if EV_USE_SIGNALFD 1799#if EV_USE_SIGNALFD
1575 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; 1800 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1576#endif 1801#endif
1577 1802
1578 if (!(flags & 0x0000ffffU)) 1803 if (!(flags & EVBACKEND_MASK))
1579 flags |= ev_recommended_backends (); 1804 flags |= ev_recommended_backends ();
1580 1805
1806#if EV_USE_IOCP
1807 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1808#endif
1581#if EV_USE_PORT 1809#if EV_USE_PORT
1582 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1810 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1583#endif 1811#endif
1584#if EV_USE_KQUEUE 1812#if EV_USE_KQUEUE
1585 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1813 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1594 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1822 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1595#endif 1823#endif
1596 1824
1597 ev_prepare_init (&pending_w, pendingcb); 1825 ev_prepare_init (&pending_w, pendingcb);
1598 1826
1827#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1599 ev_init (&pipe_w, pipecb); 1828 ev_init (&pipe_w, pipecb);
1600 ev_set_priority (&pipe_w, EV_MAXPRI); 1829 ev_set_priority (&pipe_w, EV_MAXPRI);
1830#endif
1601 } 1831 }
1602} 1832}
1603 1833
1604/* free up a loop structure */ 1834/* free up a loop structure */
1605static void noinline 1835void
1606loop_destroy (EV_P) 1836ev_loop_destroy (EV_P)
1607{ 1837{
1608 int i; 1838 int i;
1839
1840#if EV_MULTIPLICITY
1841 /* mimic free (0) */
1842 if (!EV_A)
1843 return;
1844#endif
1845
1846#if EV_CLEANUP_ENABLE
1847 /* queue cleanup watchers (and execute them) */
1848 if (expect_false (cleanupcnt))
1849 {
1850 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1851 EV_INVOKE_PENDING;
1852 }
1853#endif
1854
1855#if EV_CHILD_ENABLE
1856 if (ev_is_active (&childev))
1857 {
1858 ev_ref (EV_A); /* child watcher */
1859 ev_signal_stop (EV_A_ &childev);
1860 }
1861#endif
1609 1862
1610 if (ev_is_active (&pipe_w)) 1863 if (ev_is_active (&pipe_w))
1611 { 1864 {
1612 /*ev_ref (EV_A);*/ 1865 /*ev_ref (EV_A);*/
1613 /*ev_io_stop (EV_A_ &pipe_w);*/ 1866 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1617 close (evfd); 1870 close (evfd);
1618#endif 1871#endif
1619 1872
1620 if (evpipe [0] >= 0) 1873 if (evpipe [0] >= 0)
1621 { 1874 {
1622 close (evpipe [0]); 1875 EV_WIN32_CLOSE_FD (evpipe [0]);
1623 close (evpipe [1]); 1876 EV_WIN32_CLOSE_FD (evpipe [1]);
1624 } 1877 }
1625 } 1878 }
1626 1879
1627#if EV_USE_SIGNALFD 1880#if EV_USE_SIGNALFD
1628 if (ev_is_active (&sigfd_w)) 1881 if (ev_is_active (&sigfd_w))
1629 {
1630 /*ev_ref (EV_A);*/
1631 /*ev_io_stop (EV_A_ &sigfd_w);*/
1632
1633 close (sigfd); 1882 close (sigfd);
1634 }
1635#endif 1883#endif
1636 1884
1637#if EV_USE_INOTIFY 1885#if EV_USE_INOTIFY
1638 if (fs_fd >= 0) 1886 if (fs_fd >= 0)
1639 close (fs_fd); 1887 close (fs_fd);
1640#endif 1888#endif
1641 1889
1642 if (backend_fd >= 0) 1890 if (backend_fd >= 0)
1643 close (backend_fd); 1891 close (backend_fd);
1644 1892
1893#if EV_USE_IOCP
1894 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1895#endif
1645#if EV_USE_PORT 1896#if EV_USE_PORT
1646 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1897 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1647#endif 1898#endif
1648#if EV_USE_KQUEUE 1899#if EV_USE_KQUEUE
1649 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1900 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1676 array_free (periodic, EMPTY); 1927 array_free (periodic, EMPTY);
1677#endif 1928#endif
1678#if EV_FORK_ENABLE 1929#if EV_FORK_ENABLE
1679 array_free (fork, EMPTY); 1930 array_free (fork, EMPTY);
1680#endif 1931#endif
1932#if EV_CLEANUP_ENABLE
1933 array_free (cleanup, EMPTY);
1934#endif
1681 array_free (prepare, EMPTY); 1935 array_free (prepare, EMPTY);
1682 array_free (check, EMPTY); 1936 array_free (check, EMPTY);
1683#if EV_ASYNC_ENABLE 1937#if EV_ASYNC_ENABLE
1684 array_free (async, EMPTY); 1938 array_free (async, EMPTY);
1685#endif 1939#endif
1686 1940
1687 backend = 0; 1941 backend = 0;
1942
1943#if EV_MULTIPLICITY
1944 if (ev_is_default_loop (EV_A))
1945#endif
1946 ev_default_loop_ptr = 0;
1947#if EV_MULTIPLICITY
1948 else
1949 ev_free (EV_A);
1950#endif
1688} 1951}
1689 1952
1690#if EV_USE_INOTIFY 1953#if EV_USE_INOTIFY
1691inline_size void infy_fork (EV_P); 1954inline_size void infy_fork (EV_P);
1692#endif 1955#endif
… …
1707 infy_fork (EV_A); 1970 infy_fork (EV_A);
1708#endif 1971#endif
1709 1972
1710 if (ev_is_active (&pipe_w)) 1973 if (ev_is_active (&pipe_w))
1711 { 1974 {
1712 /* this "locks" the handlers against writing to the pipe */ 1975 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1713 /* while we modify the fd vars */
1714 sig_pending = 1;
1715#if EV_ASYNC_ENABLE
1716 async_pending = 1;
1717#endif
1718 1976
1719 ev_ref (EV_A); 1977 ev_ref (EV_A);
1720 ev_io_stop (EV_A_ &pipe_w); 1978 ev_io_stop (EV_A_ &pipe_w);
1721 1979
1722#if EV_USE_EVENTFD 1980#if EV_USE_EVENTFD
… …
1724 close (evfd); 1982 close (evfd);
1725#endif 1983#endif
1726 1984
1727 if (evpipe [0] >= 0) 1985 if (evpipe [0] >= 0)
1728 { 1986 {
1729 close (evpipe [0]); 1987 EV_WIN32_CLOSE_FD (evpipe [0]);
1730 close (evpipe [1]); 1988 EV_WIN32_CLOSE_FD (evpipe [1]);
1731 } 1989 }
1732 1990
1991#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1733 evpipe_init (EV_A); 1992 evpipe_init (EV_A);
1734 /* now iterate over everything, in case we missed something */ 1993 /* now iterate over everything, in case we missed something */
1735 pipecb (EV_A_ &pipe_w, EV_READ); 1994 pipecb (EV_A_ &pipe_w, EV_READ);
1995#endif
1736 } 1996 }
1737 1997
1738 postfork = 0; 1998 postfork = 0;
1739} 1999}
1740 2000
… …
1749 loop_init (EV_A_ flags); 2009 loop_init (EV_A_ flags);
1750 2010
1751 if (ev_backend (EV_A)) 2011 if (ev_backend (EV_A))
1752 return EV_A; 2012 return EV_A;
1753 2013
2014 ev_free (EV_A);
1754 return 0; 2015 return 0;
1755} 2016}
1756 2017
1757void
1758ev_loop_destroy (EV_P)
1759{
1760 loop_destroy (EV_A);
1761 ev_free (loop);
1762}
1763
1764void
1765ev_loop_fork (EV_P)
1766{
1767 postfork = 1; /* must be in line with ev_default_fork */
1768}
1769#endif /* multiplicity */ 2018#endif /* multiplicity */
1770 2019
1771#if EV_VERIFY 2020#if EV_VERIFY
1772static void noinline 2021static void noinline
1773verify_watcher (EV_P_ W w) 2022verify_watcher (EV_P_ W w)
… …
1802 verify_watcher (EV_A_ ws [cnt]); 2051 verify_watcher (EV_A_ ws [cnt]);
1803 } 2052 }
1804} 2053}
1805#endif 2054#endif
1806 2055
1807#if EV_MINIMAL < 2 2056#if EV_FEATURE_API
1808void 2057void
1809ev_loop_verify (EV_P) 2058ev_verify (EV_P)
1810{ 2059{
1811#if EV_VERIFY 2060#if EV_VERIFY
1812 int i; 2061 int i;
1813 WL w; 2062 WL w;
1814 2063
… …
1848#if EV_FORK_ENABLE 2097#if EV_FORK_ENABLE
1849 assert (forkmax >= forkcnt); 2098 assert (forkmax >= forkcnt);
1850 array_verify (EV_A_ (W *)forks, forkcnt); 2099 array_verify (EV_A_ (W *)forks, forkcnt);
1851#endif 2100#endif
1852 2101
2102#if EV_CLEANUP_ENABLE
2103 assert (cleanupmax >= cleanupcnt);
2104 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2105#endif
2106
1853#if EV_ASYNC_ENABLE 2107#if EV_ASYNC_ENABLE
1854 assert (asyncmax >= asynccnt); 2108 assert (asyncmax >= asynccnt);
1855 array_verify (EV_A_ (W *)asyncs, asynccnt); 2109 array_verify (EV_A_ (W *)asyncs, asynccnt);
1856#endif 2110#endif
1857 2111
2112#if EV_PREPARE_ENABLE
1858 assert (preparemax >= preparecnt); 2113 assert (preparemax >= preparecnt);
1859 array_verify (EV_A_ (W *)prepares, preparecnt); 2114 array_verify (EV_A_ (W *)prepares, preparecnt);
2115#endif
1860 2116
2117#if EV_CHECK_ENABLE
1861 assert (checkmax >= checkcnt); 2118 assert (checkmax >= checkcnt);
1862 array_verify (EV_A_ (W *)checks, checkcnt); 2119 array_verify (EV_A_ (W *)checks, checkcnt);
2120#endif
1863 2121
1864# if 0 2122# if 0
2123#if EV_CHILD_ENABLE
1865 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2124 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1866 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2125 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2126#endif
1867# endif 2127# endif
1868#endif 2128#endif
1869} 2129}
1870#endif 2130#endif
1871 2131
1872#if EV_MULTIPLICITY 2132#if EV_MULTIPLICITY
1873struct ev_loop * 2133struct ev_loop *
1874ev_default_loop_init (unsigned int flags)
1875#else 2134#else
1876int 2135int
2136#endif
1877ev_default_loop (unsigned int flags) 2137ev_default_loop (unsigned int flags)
1878#endif
1879{ 2138{
1880 if (!ev_default_loop_ptr) 2139 if (!ev_default_loop_ptr)
1881 { 2140 {
1882#if EV_MULTIPLICITY 2141#if EV_MULTIPLICITY
1883 EV_P = ev_default_loop_ptr = &default_loop_struct; 2142 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1887 2146
1888 loop_init (EV_A_ flags); 2147 loop_init (EV_A_ flags);
1889 2148
1890 if (ev_backend (EV_A)) 2149 if (ev_backend (EV_A))
1891 { 2150 {
1892#ifndef _WIN32 2151#if EV_CHILD_ENABLE
1893 ev_signal_init (&childev, childcb, SIGCHLD); 2152 ev_signal_init (&childev, childcb, SIGCHLD);
1894 ev_set_priority (&childev, EV_MAXPRI); 2153 ev_set_priority (&childev, EV_MAXPRI);
1895 ev_signal_start (EV_A_ &childev); 2154 ev_signal_start (EV_A_ &childev);
1896 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2155 ev_unref (EV_A); /* child watcher should not keep loop alive */
1897#endif 2156#endif
… …
1902 2161
1903 return ev_default_loop_ptr; 2162 return ev_default_loop_ptr;
1904} 2163}
1905 2164
1906void 2165void
1907ev_default_destroy (void) 2166ev_loop_fork (EV_P)
1908{ 2167{
1909#if EV_MULTIPLICITY
1910 EV_P = ev_default_loop_ptr;
1911#endif
1912
1913 ev_default_loop_ptr = 0;
1914
1915#ifndef _WIN32
1916 ev_ref (EV_A); /* child watcher */
1917 ev_signal_stop (EV_A_ &childev);
1918#endif
1919
1920 loop_destroy (EV_A);
1921}
1922
1923void
1924ev_default_fork (void)
1925{
1926#if EV_MULTIPLICITY
1927 EV_P = ev_default_loop_ptr;
1928#endif
1929
1930 postfork = 1; /* must be in line with ev_loop_fork */ 2168 postfork = 1; /* must be in line with ev_default_fork */
1931} 2169}
1932 2170
1933/*****************************************************************************/ 2171/*****************************************************************************/
1934 2172
1935void 2173void
… …
1957 2195
1958 for (pri = NUMPRI; pri--; ) 2196 for (pri = NUMPRI; pri--; )
1959 while (pendingcnt [pri]) 2197 while (pendingcnt [pri])
1960 { 2198 {
1961 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2199 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1962
1963 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1964 /* ^ this is no longer true, as pending_w could be here */
1965 2200
1966 p->w->pending = 0; 2201 p->w->pending = 0;
1967 EV_CB_INVOKE (p->w, p->events); 2202 EV_CB_INVOKE (p->w, p->events);
1968 EV_FREQUENT_CHECK; 2203 EV_FREQUENT_CHECK;
1969 } 2204 }
… …
2026 EV_FREQUENT_CHECK; 2261 EV_FREQUENT_CHECK;
2027 feed_reverse (EV_A_ (W)w); 2262 feed_reverse (EV_A_ (W)w);
2028 } 2263 }
2029 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2264 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2030 2265
2031 feed_reverse_done (EV_A_ EV_TIMEOUT); 2266 feed_reverse_done (EV_A_ EV_TIMER);
2032 } 2267 }
2033} 2268}
2034 2269
2035#if EV_PERIODIC_ENABLE 2270#if EV_PERIODIC_ENABLE
2271
2272static void noinline
2273periodic_recalc (EV_P_ ev_periodic *w)
2274{
2275 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2276 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2277
2278 /* the above almost always errs on the low side */
2279 while (at <= ev_rt_now)
2280 {
2281 ev_tstamp nat = at + w->interval;
2282
2283 /* when resolution fails us, we use ev_rt_now */
2284 if (expect_false (nat == at))
2285 {
2286 at = ev_rt_now;
2287 break;
2288 }
2289
2290 at = nat;
2291 }
2292
2293 ev_at (w) = at;
2294}
2295
2036/* make periodics pending */ 2296/* make periodics pending */
2037inline_size void 2297inline_size void
2038periodics_reify (EV_P) 2298periodics_reify (EV_P)
2039{ 2299{
2040 EV_FREQUENT_CHECK; 2300 EV_FREQUENT_CHECK;
… …
2059 ANHE_at_cache (periodics [HEAP0]); 2319 ANHE_at_cache (periodics [HEAP0]);
2060 downheap (periodics, periodiccnt, HEAP0); 2320 downheap (periodics, periodiccnt, HEAP0);
2061 } 2321 }
2062 else if (w->interval) 2322 else if (w->interval)
2063 { 2323 {
2064 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2324 periodic_recalc (EV_A_ w);
2065 /* if next trigger time is not sufficiently in the future, put it there */
2066 /* this might happen because of floating point inexactness */
2067 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2068 {
2069 ev_at (w) += w->interval;
2070
2071 /* if interval is unreasonably low we might still have a time in the past */
2072 /* so correct this. this will make the periodic very inexact, but the user */
2073 /* has effectively asked to get triggered more often than possible */
2074 if (ev_at (w) < ev_rt_now)
2075 ev_at (w) = ev_rt_now;
2076 }
2077
2078 ANHE_at_cache (periodics [HEAP0]); 2325 ANHE_at_cache (periodics [HEAP0]);
2079 downheap (periodics, periodiccnt, HEAP0); 2326 downheap (periodics, periodiccnt, HEAP0);
2080 } 2327 }
2081 else 2328 else
2082 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2329 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2089 feed_reverse_done (EV_A_ EV_PERIODIC); 2336 feed_reverse_done (EV_A_ EV_PERIODIC);
2090 } 2337 }
2091} 2338}
2092 2339
2093/* simply recalculate all periodics */ 2340/* simply recalculate all periodics */
2094/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2341/* TODO: maybe ensure that at least one event happens when jumping forward? */
2095static void noinline 2342static void noinline
2096periodics_reschedule (EV_P) 2343periodics_reschedule (EV_P)
2097{ 2344{
2098 int i; 2345 int i;
2099 2346
… …
2103 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2350 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2104 2351
2105 if (w->reschedule_cb) 2352 if (w->reschedule_cb)
2106 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2353 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2107 else if (w->interval) 2354 else if (w->interval)
2108 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2355 periodic_recalc (EV_A_ w);
2109 2356
2110 ANHE_at_cache (periodics [i]); 2357 ANHE_at_cache (periodics [i]);
2111 } 2358 }
2112 2359
2113 reheap (periodics, periodiccnt); 2360 reheap (periodics, periodiccnt);
… …
2127 ANHE_at_cache (*he); 2374 ANHE_at_cache (*he);
2128 } 2375 }
2129} 2376}
2130 2377
2131/* fetch new monotonic and realtime times from the kernel */ 2378/* fetch new monotonic and realtime times from the kernel */
2132/* also detetc if there was a timejump, and act accordingly */ 2379/* also detect if there was a timejump, and act accordingly */
2133inline_speed void 2380inline_speed void
2134time_update (EV_P_ ev_tstamp max_block) 2381time_update (EV_P_ ev_tstamp max_block)
2135{ 2382{
2136#if EV_USE_MONOTONIC 2383#if EV_USE_MONOTONIC
2137 if (expect_true (have_monotonic)) 2384 if (expect_true (have_monotonic))
… …
2160 * doesn't hurt either as we only do this on time-jumps or 2407 * doesn't hurt either as we only do this on time-jumps or
2161 * in the unlikely event of having been preempted here. 2408 * in the unlikely event of having been preempted here.
2162 */ 2409 */
2163 for (i = 4; --i; ) 2410 for (i = 4; --i; )
2164 { 2411 {
2412 ev_tstamp diff;
2165 rtmn_diff = ev_rt_now - mn_now; 2413 rtmn_diff = ev_rt_now - mn_now;
2166 2414
2415 diff = odiff - rtmn_diff;
2416
2167 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2417 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2168 return; /* all is well */ 2418 return; /* all is well */
2169 2419
2170 ev_rt_now = ev_time (); 2420 ev_rt_now = ev_time ();
2171 mn_now = get_clock (); 2421 mn_now = get_clock ();
2172 now_floor = mn_now; 2422 now_floor = mn_now;
… …
2195 mn_now = ev_rt_now; 2445 mn_now = ev_rt_now;
2196 } 2446 }
2197} 2447}
2198 2448
2199void 2449void
2200ev_loop (EV_P_ int flags) 2450ev_run (EV_P_ int flags)
2201{ 2451{
2202#if EV_MINIMAL < 2 2452#if EV_FEATURE_API
2203 ++loop_depth; 2453 ++loop_depth;
2204#endif 2454#endif
2205 2455
2206 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2456 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2207 2457
2208 loop_done = EVUNLOOP_CANCEL; 2458 loop_done = EVBREAK_CANCEL;
2209 2459
2210 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2460 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2211 2461
2212 do 2462 do
2213 { 2463 {
2214#if EV_VERIFY >= 2 2464#if EV_VERIFY >= 2
2215 ev_loop_verify (EV_A); 2465 ev_verify (EV_A);
2216#endif 2466#endif
2217 2467
2218#ifndef _WIN32 2468#ifndef _WIN32
2219 if (expect_false (curpid)) /* penalise the forking check even more */ 2469 if (expect_false (curpid)) /* penalise the forking check even more */
2220 if (expect_false (getpid () != curpid)) 2470 if (expect_false (getpid () != curpid))
… …
2232 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2482 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2233 EV_INVOKE_PENDING; 2483 EV_INVOKE_PENDING;
2234 } 2484 }
2235#endif 2485#endif
2236 2486
2487#if EV_PREPARE_ENABLE
2237 /* queue prepare watchers (and execute them) */ 2488 /* queue prepare watchers (and execute them) */
2238 if (expect_false (preparecnt)) 2489 if (expect_false (preparecnt))
2239 { 2490 {
2240 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2491 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2241 EV_INVOKE_PENDING; 2492 EV_INVOKE_PENDING;
2242 } 2493 }
2494#endif
2243 2495
2244 if (expect_false (loop_done)) 2496 if (expect_false (loop_done))
2245 break; 2497 break;
2246 2498
2247 /* we might have forked, so reify kernel state if necessary */ 2499 /* we might have forked, so reify kernel state if necessary */
… …
2254 /* calculate blocking time */ 2506 /* calculate blocking time */
2255 { 2507 {
2256 ev_tstamp waittime = 0.; 2508 ev_tstamp waittime = 0.;
2257 ev_tstamp sleeptime = 0.; 2509 ev_tstamp sleeptime = 0.;
2258 2510
2511 /* remember old timestamp for io_blocktime calculation */
2512 ev_tstamp prev_mn_now = mn_now;
2513
2514 /* update time to cancel out callback processing overhead */
2515 time_update (EV_A_ 1e100);
2516
2517 /* from now on, we want a pipe-wake-up */
2518 pipe_write_wanted = 1;
2519
2259 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2520 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2260 { 2521 {
2261 /* remember old timestamp for io_blocktime calculation */
2262 ev_tstamp prev_mn_now = mn_now;
2263
2264 /* update time to cancel out callback processing overhead */
2265 time_update (EV_A_ 1e100);
2266
2267 waittime = MAX_BLOCKTIME; 2522 waittime = MAX_BLOCKTIME;
2268 2523
2269 if (timercnt) 2524 if (timercnt)
2270 { 2525 {
2271 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2526 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2272 if (waittime > to) waittime = to; 2527 if (waittime > to) waittime = to;
2273 } 2528 }
2274 2529
2275#if EV_PERIODIC_ENABLE 2530#if EV_PERIODIC_ENABLE
2276 if (periodiccnt) 2531 if (periodiccnt)
2277 { 2532 {
2278 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2533 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2279 if (waittime > to) waittime = to; 2534 if (waittime > to) waittime = to;
2280 } 2535 }
2281#endif 2536#endif
2282 2537
2283 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2538 /* don't let timeouts decrease the waittime below timeout_blocktime */
2284 if (expect_false (waittime < timeout_blocktime)) 2539 if (expect_false (waittime < timeout_blocktime))
2285 waittime = timeout_blocktime; 2540 waittime = timeout_blocktime;
2541
2542 /* at this point, we NEED to wait, so we have to ensure */
2543 /* to pass a minimum nonzero value to the backend */
2544 if (expect_false (waittime < backend_mintime))
2545 waittime = backend_mintime;
2286 2546
2287 /* extra check because io_blocktime is commonly 0 */ 2547 /* extra check because io_blocktime is commonly 0 */
2288 if (expect_false (io_blocktime)) 2548 if (expect_false (io_blocktime))
2289 { 2549 {
2290 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2550 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2291 2551
2292 if (sleeptime > waittime - backend_fudge) 2552 if (sleeptime > waittime - backend_mintime)
2293 sleeptime = waittime - backend_fudge; 2553 sleeptime = waittime - backend_mintime;
2294 2554
2295 if (expect_true (sleeptime > 0.)) 2555 if (expect_true (sleeptime > 0.))
2296 { 2556 {
2297 ev_sleep (sleeptime); 2557 ev_sleep (sleeptime);
2298 waittime -= sleeptime; 2558 waittime -= sleeptime;
2299 } 2559 }
2300 } 2560 }
2301 } 2561 }
2302 2562
2303#if EV_MINIMAL < 2 2563#if EV_FEATURE_API
2304 ++loop_count; 2564 ++loop_count;
2305#endif 2565#endif
2306 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2566 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2307 backend_poll (EV_A_ waittime); 2567 backend_poll (EV_A_ waittime);
2308 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2568 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2569
2570 pipe_write_wanted = 0;
2571
2572 if (pipe_write_skipped)
2573 {
2574 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2575 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2576 }
2577
2309 2578
2310 /* update ev_rt_now, do magic */ 2579 /* update ev_rt_now, do magic */
2311 time_update (EV_A_ waittime + sleeptime); 2580 time_update (EV_A_ waittime + sleeptime);
2312 } 2581 }
2313 2582
… …
2320#if EV_IDLE_ENABLE 2589#if EV_IDLE_ENABLE
2321 /* queue idle watchers unless other events are pending */ 2590 /* queue idle watchers unless other events are pending */
2322 idle_reify (EV_A); 2591 idle_reify (EV_A);
2323#endif 2592#endif
2324 2593
2594#if EV_CHECK_ENABLE
2325 /* queue check watchers, to be executed first */ 2595 /* queue check watchers, to be executed first */
2326 if (expect_false (checkcnt)) 2596 if (expect_false (checkcnt))
2327 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2597 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2598#endif
2328 2599
2329 EV_INVOKE_PENDING; 2600 EV_INVOKE_PENDING;
2330 } 2601 }
2331 while (expect_true ( 2602 while (expect_true (
2332 activecnt 2603 activecnt
2333 && !loop_done 2604 && !loop_done
2334 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2605 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2335 )); 2606 ));
2336 2607
2337 if (loop_done == EVUNLOOP_ONE) 2608 if (loop_done == EVBREAK_ONE)
2338 loop_done = EVUNLOOP_CANCEL; 2609 loop_done = EVBREAK_CANCEL;
2339 2610
2340#if EV_MINIMAL < 2 2611#if EV_FEATURE_API
2341 --loop_depth; 2612 --loop_depth;
2342#endif 2613#endif
2343} 2614}
2344 2615
2345void 2616void
2346ev_unloop (EV_P_ int how) 2617ev_break (EV_P_ int how)
2347{ 2618{
2348 loop_done = how; 2619 loop_done = how;
2349} 2620}
2350 2621
2351void 2622void
… …
2471 2742
2472 if (expect_false (ev_is_active (w))) 2743 if (expect_false (ev_is_active (w)))
2473 return; 2744 return;
2474 2745
2475 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2746 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2476 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2747 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2477 2748
2478 EV_FREQUENT_CHECK; 2749 EV_FREQUENT_CHECK;
2479 2750
2480 ev_start (EV_A_ (W)w, 1); 2751 ev_start (EV_A_ (W)w, 1);
2481 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2752 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2499 EV_FREQUENT_CHECK; 2770 EV_FREQUENT_CHECK;
2500 2771
2501 wlist_del (&anfds[w->fd].head, (WL)w); 2772 wlist_del (&anfds[w->fd].head, (WL)w);
2502 ev_stop (EV_A_ (W)w); 2773 ev_stop (EV_A_ (W)w);
2503 2774
2504 fd_change (EV_A_ w->fd, 1); 2775 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2505 2776
2506 EV_FREQUENT_CHECK; 2777 EV_FREQUENT_CHECK;
2507} 2778}
2508 2779
2509void noinline 2780void noinline
… …
2551 timers [active] = timers [timercnt + HEAP0]; 2822 timers [active] = timers [timercnt + HEAP0];
2552 adjustheap (timers, timercnt, active); 2823 adjustheap (timers, timercnt, active);
2553 } 2824 }
2554 } 2825 }
2555 2826
2556 EV_FREQUENT_CHECK;
2557
2558 ev_at (w) -= mn_now; 2827 ev_at (w) -= mn_now;
2559 2828
2560 ev_stop (EV_A_ (W)w); 2829 ev_stop (EV_A_ (W)w);
2830
2831 EV_FREQUENT_CHECK;
2561} 2832}
2562 2833
2563void noinline 2834void noinline
2564ev_timer_again (EV_P_ ev_timer *w) 2835ev_timer_again (EV_P_ ev_timer *w)
2565{ 2836{
… …
2601 if (w->reschedule_cb) 2872 if (w->reschedule_cb)
2602 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2873 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2603 else if (w->interval) 2874 else if (w->interval)
2604 { 2875 {
2605 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2876 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2606 /* this formula differs from the one in periodic_reify because we do not always round up */ 2877 periodic_recalc (EV_A_ w);
2607 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2608 } 2878 }
2609 else 2879 else
2610 ev_at (w) = w->offset; 2880 ev_at (w) = w->offset;
2611 2881
2612 EV_FREQUENT_CHECK; 2882 EV_FREQUENT_CHECK;
… …
2644 periodics [active] = periodics [periodiccnt + HEAP0]; 2914 periodics [active] = periodics [periodiccnt + HEAP0];
2645 adjustheap (periodics, periodiccnt, active); 2915 adjustheap (periodics, periodiccnt, active);
2646 } 2916 }
2647 } 2917 }
2648 2918
2649 EV_FREQUENT_CHECK;
2650
2651 ev_stop (EV_A_ (W)w); 2919 ev_stop (EV_A_ (W)w);
2920
2921 EV_FREQUENT_CHECK;
2652} 2922}
2653 2923
2654void noinline 2924void noinline
2655ev_periodic_again (EV_P_ ev_periodic *w) 2925ev_periodic_again (EV_P_ ev_periodic *w)
2656{ 2926{
… …
2661#endif 2931#endif
2662 2932
2663#ifndef SA_RESTART 2933#ifndef SA_RESTART
2664# define SA_RESTART 0 2934# define SA_RESTART 0
2665#endif 2935#endif
2936
2937#if EV_SIGNAL_ENABLE
2666 2938
2667void noinline 2939void noinline
2668ev_signal_start (EV_P_ ev_signal *w) 2940ev_signal_start (EV_P_ ev_signal *w)
2669{ 2941{
2670 if (expect_false (ev_is_active (w))) 2942 if (expect_false (ev_is_active (w)))
… …
2717 if (!((WL)w)->next) 2989 if (!((WL)w)->next)
2718# if EV_USE_SIGNALFD 2990# if EV_USE_SIGNALFD
2719 if (sigfd < 0) /*TODO*/ 2991 if (sigfd < 0) /*TODO*/
2720# endif 2992# endif
2721 { 2993 {
2722# if _WIN32 2994# ifdef _WIN32
2995 evpipe_init (EV_A);
2996
2723 signal (w->signum, ev_sighandler); 2997 signal (w->signum, ev_sighandler);
2724# else 2998# else
2725 struct sigaction sa; 2999 struct sigaction sa;
2726 3000
2727 evpipe_init (EV_A); 3001 evpipe_init (EV_A);
… …
2729 sa.sa_handler = ev_sighandler; 3003 sa.sa_handler = ev_sighandler;
2730 sigfillset (&sa.sa_mask); 3004 sigfillset (&sa.sa_mask);
2731 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3005 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2732 sigaction (w->signum, &sa, 0); 3006 sigaction (w->signum, &sa, 0);
2733 3007
3008 if (origflags & EVFLAG_NOSIGMASK)
3009 {
2734 sigemptyset (&sa.sa_mask); 3010 sigemptyset (&sa.sa_mask);
2735 sigaddset (&sa.sa_mask, w->signum); 3011 sigaddset (&sa.sa_mask, w->signum);
2736 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3012 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3013 }
2737#endif 3014#endif
2738 } 3015 }
2739 3016
2740 EV_FREQUENT_CHECK; 3017 EV_FREQUENT_CHECK;
2741} 3018}
… …
2758 signals [w->signum - 1].loop = 0; /* unattach from signal */ 3035 signals [w->signum - 1].loop = 0; /* unattach from signal */
2759#endif 3036#endif
2760#if EV_USE_SIGNALFD 3037#if EV_USE_SIGNALFD
2761 if (sigfd >= 0) 3038 if (sigfd >= 0)
2762 { 3039 {
2763 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3040 sigset_t ss;
3041
3042 sigemptyset (&ss);
3043 sigaddset (&ss, w->signum);
2764 sigdelset (&sigfd_set, w->signum); 3044 sigdelset (&sigfd_set, w->signum);
3045
2765 signalfd (sigfd, &sigfd_set, 0); 3046 signalfd (sigfd, &sigfd_set, 0);
2766 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3047 sigprocmask (SIG_UNBLOCK, &ss, 0);
2767 /*TODO: maybe unblock signal? */
2768 } 3048 }
2769 else 3049 else
2770#endif 3050#endif
2771 signal (w->signum, SIG_DFL); 3051 signal (w->signum, SIG_DFL);
2772 } 3052 }
2773 3053
2774 EV_FREQUENT_CHECK; 3054 EV_FREQUENT_CHECK;
2775} 3055}
2776 3056
3057#endif
3058
3059#if EV_CHILD_ENABLE
3060
2777void 3061void
2778ev_child_start (EV_P_ ev_child *w) 3062ev_child_start (EV_P_ ev_child *w)
2779{ 3063{
2780#if EV_MULTIPLICITY 3064#if EV_MULTIPLICITY
2781 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3065 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2784 return; 3068 return;
2785 3069
2786 EV_FREQUENT_CHECK; 3070 EV_FREQUENT_CHECK;
2787 3071
2788 ev_start (EV_A_ (W)w, 1); 3072 ev_start (EV_A_ (W)w, 1);
2789 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3073 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2790 3074
2791 EV_FREQUENT_CHECK; 3075 EV_FREQUENT_CHECK;
2792} 3076}
2793 3077
2794void 3078void
… …
2798 if (expect_false (!ev_is_active (w))) 3082 if (expect_false (!ev_is_active (w)))
2799 return; 3083 return;
2800 3084
2801 EV_FREQUENT_CHECK; 3085 EV_FREQUENT_CHECK;
2802 3086
2803 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3087 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2804 ev_stop (EV_A_ (W)w); 3088 ev_stop (EV_A_ (W)w);
2805 3089
2806 EV_FREQUENT_CHECK; 3090 EV_FREQUENT_CHECK;
2807} 3091}
3092
3093#endif
2808 3094
2809#if EV_STAT_ENABLE 3095#if EV_STAT_ENABLE
2810 3096
2811# ifdef _WIN32 3097# ifdef _WIN32
2812# undef lstat 3098# undef lstat
… …
2818#define MIN_STAT_INTERVAL 0.1074891 3104#define MIN_STAT_INTERVAL 0.1074891
2819 3105
2820static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3106static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2821 3107
2822#if EV_USE_INOTIFY 3108#if EV_USE_INOTIFY
2823# define EV_INOTIFY_BUFSIZE 8192 3109
3110/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3111# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2824 3112
2825static void noinline 3113static void noinline
2826infy_add (EV_P_ ev_stat *w) 3114infy_add (EV_P_ ev_stat *w)
2827{ 3115{
2828 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); 3116 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);
2829 3117
2830 if (w->wd < 0) 3118 if (w->wd >= 0)
3119 {
3120 struct statfs sfs;
3121
3122 /* now local changes will be tracked by inotify, but remote changes won't */
3123 /* unless the filesystem is known to be local, we therefore still poll */
3124 /* also do poll on <2.6.25, but with normal frequency */
3125
3126 if (!fs_2625)
3127 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3128 else if (!statfs (w->path, &sfs)
3129 && (sfs.f_type == 0x1373 /* devfs */
3130 || sfs.f_type == 0xEF53 /* ext2/3 */
3131 || sfs.f_type == 0x3153464a /* jfs */
3132 || sfs.f_type == 0x52654973 /* reiser3 */
3133 || sfs.f_type == 0x01021994 /* tempfs */
3134 || sfs.f_type == 0x58465342 /* xfs */))
3135 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3136 else
3137 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2831 { 3138 }
3139 else
3140 {
3141 /* can't use inotify, continue to stat */
2832 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3142 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2833 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2834 3143
2835 /* monitor some parent directory for speedup hints */ 3144 /* if path is not there, monitor some parent directory for speedup hints */
2836 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3145 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2837 /* but an efficiency issue only */ 3146 /* but an efficiency issue only */
2838 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3147 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2839 { 3148 {
2840 char path [4096]; 3149 char path [4096];
… …
2850 if (!pend || pend == path) 3159 if (!pend || pend == path)
2851 break; 3160 break;
2852 3161
2853 *pend = 0; 3162 *pend = 0;
2854 w->wd = inotify_add_watch (fs_fd, path, mask); 3163 w->wd = inotify_add_watch (fs_fd, path, mask);
2855 } 3164 }
2856 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3165 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2857 } 3166 }
2858 } 3167 }
2859 3168
2860 if (w->wd >= 0) 3169 if (w->wd >= 0)
2861 {
2862 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3170 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2863 3171
2864 /* now local changes will be tracked by inotify, but remote changes won't */ 3172 /* now re-arm timer, if required */
2865 /* unless the filesystem it known to be local, we therefore still poll */ 3173 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2866 /* also do poll on <2.6.25, but with normal frequency */
2867 struct statfs sfs;
2868
2869 if (fs_2625 && !statfs (w->path, &sfs))
2870 if (sfs.f_type == 0x1373 /* devfs */
2871 || sfs.f_type == 0xEF53 /* ext2/3 */
2872 || sfs.f_type == 0x3153464a /* jfs */
2873 || sfs.f_type == 0x52654973 /* reiser3 */
2874 || sfs.f_type == 0x01021994 /* tempfs */
2875 || sfs.f_type == 0x58465342 /* xfs */)
2876 return;
2877
2878 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2879 ev_timer_again (EV_A_ &w->timer); 3174 ev_timer_again (EV_A_ &w->timer);
2880 } 3175 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2881} 3176}
2882 3177
2883static void noinline 3178static void noinline
2884infy_del (EV_P_ ev_stat *w) 3179infy_del (EV_P_ ev_stat *w)
2885{ 3180{
… …
2888 3183
2889 if (wd < 0) 3184 if (wd < 0)
2890 return; 3185 return;
2891 3186
2892 w->wd = -2; 3187 w->wd = -2;
2893 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3188 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2894 wlist_del (&fs_hash [slot].head, (WL)w); 3189 wlist_del (&fs_hash [slot].head, (WL)w);
2895 3190
2896 /* remove this watcher, if others are watching it, they will rearm */ 3191 /* remove this watcher, if others are watching it, they will rearm */
2897 inotify_rm_watch (fs_fd, wd); 3192 inotify_rm_watch (fs_fd, wd);
2898} 3193}
… …
2900static void noinline 3195static void noinline
2901infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3196infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2902{ 3197{
2903 if (slot < 0) 3198 if (slot < 0)
2904 /* overflow, need to check for all hash slots */ 3199 /* overflow, need to check for all hash slots */
2905 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3200 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2906 infy_wd (EV_A_ slot, wd, ev); 3201 infy_wd (EV_A_ slot, wd, ev);
2907 else 3202 else
2908 { 3203 {
2909 WL w_; 3204 WL w_;
2910 3205
2911 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3206 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2912 { 3207 {
2913 ev_stat *w = (ev_stat *)w_; 3208 ev_stat *w = (ev_stat *)w_;
2914 w_ = w_->next; /* lets us remove this watcher and all before it */ 3209 w_ = w_->next; /* lets us remove this watcher and all before it */
2915 3210
2916 if (w->wd == wd || wd == -1) 3211 if (w->wd == wd || wd == -1)
2917 { 3212 {
2918 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3213 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2919 { 3214 {
2920 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3215 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2921 w->wd = -1; 3216 w->wd = -1;
2922 infy_add (EV_A_ w); /* re-add, no matter what */ 3217 infy_add (EV_A_ w); /* re-add, no matter what */
2923 } 3218 }
2924 3219
2925 stat_timer_cb (EV_A_ &w->timer, 0); 3220 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2930 3225
2931static void 3226static void
2932infy_cb (EV_P_ ev_io *w, int revents) 3227infy_cb (EV_P_ ev_io *w, int revents)
2933{ 3228{
2934 char buf [EV_INOTIFY_BUFSIZE]; 3229 char buf [EV_INOTIFY_BUFSIZE];
2935 struct inotify_event *ev = (struct inotify_event *)buf;
2936 int ofs; 3230 int ofs;
2937 int len = read (fs_fd, buf, sizeof (buf)); 3231 int len = read (fs_fd, buf, sizeof (buf));
2938 3232
2939 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3233 for (ofs = 0; ofs < len; )
3234 {
3235 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2940 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3236 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3237 ofs += sizeof (struct inotify_event) + ev->len;
3238 }
2941} 3239}
2942 3240
2943inline_size void 3241inline_size void
2944check_2625 (EV_P) 3242ev_check_2625 (EV_P)
2945{ 3243{
2946 /* kernels < 2.6.25 are borked 3244 /* kernels < 2.6.25 are borked
2947 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3245 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2948 */ 3246 */
2949 struct utsname buf; 3247 if (ev_linux_version () < 0x020619)
2950 int major, minor, micro;
2951
2952 if (uname (&buf))
2953 return; 3248 return;
2954 3249
2955 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2956 return;
2957
2958 if (major < 2
2959 || (major == 2 && minor < 6)
2960 || (major == 2 && minor == 6 && micro < 25))
2961 return;
2962
2963 fs_2625 = 1; 3250 fs_2625 = 1;
3251}
3252
3253inline_size int
3254infy_newfd (void)
3255{
3256#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3257 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3258 if (fd >= 0)
3259 return fd;
3260#endif
3261 return inotify_init ();
2964} 3262}
2965 3263
2966inline_size void 3264inline_size void
2967infy_init (EV_P) 3265infy_init (EV_P)
2968{ 3266{
2969 if (fs_fd != -2) 3267 if (fs_fd != -2)
2970 return; 3268 return;
2971 3269
2972 fs_fd = -1; 3270 fs_fd = -1;
2973 3271
2974 check_2625 (EV_A); 3272 ev_check_2625 (EV_A);
2975 3273
2976 fs_fd = inotify_init (); 3274 fs_fd = infy_newfd ();
2977 3275
2978 if (fs_fd >= 0) 3276 if (fs_fd >= 0)
2979 { 3277 {
3278 fd_intern (fs_fd);
2980 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3279 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2981 ev_set_priority (&fs_w, EV_MAXPRI); 3280 ev_set_priority (&fs_w, EV_MAXPRI);
2982 ev_io_start (EV_A_ &fs_w); 3281 ev_io_start (EV_A_ &fs_w);
3282 ev_unref (EV_A);
2983 } 3283 }
2984} 3284}
2985 3285
2986inline_size void 3286inline_size void
2987infy_fork (EV_P) 3287infy_fork (EV_P)
… …
2989 int slot; 3289 int slot;
2990 3290
2991 if (fs_fd < 0) 3291 if (fs_fd < 0)
2992 return; 3292 return;
2993 3293
3294 ev_ref (EV_A);
3295 ev_io_stop (EV_A_ &fs_w);
2994 close (fs_fd); 3296 close (fs_fd);
2995 fs_fd = inotify_init (); 3297 fs_fd = infy_newfd ();
2996 3298
3299 if (fs_fd >= 0)
3300 {
3301 fd_intern (fs_fd);
3302 ev_io_set (&fs_w, fs_fd, EV_READ);
3303 ev_io_start (EV_A_ &fs_w);
3304 ev_unref (EV_A);
3305 }
3306
2997 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3307 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2998 { 3308 {
2999 WL w_ = fs_hash [slot].head; 3309 WL w_ = fs_hash [slot].head;
3000 fs_hash [slot].head = 0; 3310 fs_hash [slot].head = 0;
3001 3311
3002 while (w_) 3312 while (w_)
… …
3007 w->wd = -1; 3317 w->wd = -1;
3008 3318
3009 if (fs_fd >= 0) 3319 if (fs_fd >= 0)
3010 infy_add (EV_A_ w); /* re-add, no matter what */ 3320 infy_add (EV_A_ w); /* re-add, no matter what */
3011 else 3321 else
3322 {
3323 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3324 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3012 ev_timer_again (EV_A_ &w->timer); 3325 ev_timer_again (EV_A_ &w->timer);
3326 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3327 }
3013 } 3328 }
3014 } 3329 }
3015} 3330}
3016 3331
3017#endif 3332#endif
… …
3034static void noinline 3349static void noinline
3035stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3350stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3036{ 3351{
3037 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3352 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3038 3353
3039 /* we copy this here each the time so that */ 3354 ev_statdata prev = w->attr;
3040 /* prev has the old value when the callback gets invoked */
3041 w->prev = w->attr;
3042 ev_stat_stat (EV_A_ w); 3355 ev_stat_stat (EV_A_ w);
3043 3356
3044 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3357 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3045 if ( 3358 if (
3046 w->prev.st_dev != w->attr.st_dev 3359 prev.st_dev != w->attr.st_dev
3047 || w->prev.st_ino != w->attr.st_ino 3360 || prev.st_ino != w->attr.st_ino
3048 || w->prev.st_mode != w->attr.st_mode 3361 || prev.st_mode != w->attr.st_mode
3049 || w->prev.st_nlink != w->attr.st_nlink 3362 || prev.st_nlink != w->attr.st_nlink
3050 || w->prev.st_uid != w->attr.st_uid 3363 || prev.st_uid != w->attr.st_uid
3051 || w->prev.st_gid != w->attr.st_gid 3364 || prev.st_gid != w->attr.st_gid
3052 || w->prev.st_rdev != w->attr.st_rdev 3365 || prev.st_rdev != w->attr.st_rdev
3053 || w->prev.st_size != w->attr.st_size 3366 || prev.st_size != w->attr.st_size
3054 || w->prev.st_atime != w->attr.st_atime 3367 || prev.st_atime != w->attr.st_atime
3055 || w->prev.st_mtime != w->attr.st_mtime 3368 || prev.st_mtime != w->attr.st_mtime
3056 || w->prev.st_ctime != w->attr.st_ctime 3369 || prev.st_ctime != w->attr.st_ctime
3057 ) { 3370 ) {
3371 /* we only update w->prev on actual differences */
3372 /* in case we test more often than invoke the callback, */
3373 /* to ensure that prev is always different to attr */
3374 w->prev = prev;
3375
3058 #if EV_USE_INOTIFY 3376 #if EV_USE_INOTIFY
3059 if (fs_fd >= 0) 3377 if (fs_fd >= 0)
3060 { 3378 {
3061 infy_del (EV_A_ w); 3379 infy_del (EV_A_ w);
3062 infy_add (EV_A_ w); 3380 infy_add (EV_A_ w);
… …
3087 3405
3088 if (fs_fd >= 0) 3406 if (fs_fd >= 0)
3089 infy_add (EV_A_ w); 3407 infy_add (EV_A_ w);
3090 else 3408 else
3091#endif 3409#endif
3410 {
3092 ev_timer_again (EV_A_ &w->timer); 3411 ev_timer_again (EV_A_ &w->timer);
3412 ev_unref (EV_A);
3413 }
3093 3414
3094 ev_start (EV_A_ (W)w, 1); 3415 ev_start (EV_A_ (W)w, 1);
3095 3416
3096 EV_FREQUENT_CHECK; 3417 EV_FREQUENT_CHECK;
3097} 3418}
… …
3106 EV_FREQUENT_CHECK; 3427 EV_FREQUENT_CHECK;
3107 3428
3108#if EV_USE_INOTIFY 3429#if EV_USE_INOTIFY
3109 infy_del (EV_A_ w); 3430 infy_del (EV_A_ w);
3110#endif 3431#endif
3432
3433 if (ev_is_active (&w->timer))
3434 {
3435 ev_ref (EV_A);
3111 ev_timer_stop (EV_A_ &w->timer); 3436 ev_timer_stop (EV_A_ &w->timer);
3437 }
3112 3438
3113 ev_stop (EV_A_ (W)w); 3439 ev_stop (EV_A_ (W)w);
3114 3440
3115 EV_FREQUENT_CHECK; 3441 EV_FREQUENT_CHECK;
3116} 3442}
… …
3161 3487
3162 EV_FREQUENT_CHECK; 3488 EV_FREQUENT_CHECK;
3163} 3489}
3164#endif 3490#endif
3165 3491
3492#if EV_PREPARE_ENABLE
3166void 3493void
3167ev_prepare_start (EV_P_ ev_prepare *w) 3494ev_prepare_start (EV_P_ ev_prepare *w)
3168{ 3495{
3169 if (expect_false (ev_is_active (w))) 3496 if (expect_false (ev_is_active (w)))
3170 return; 3497 return;
… …
3196 3523
3197 ev_stop (EV_A_ (W)w); 3524 ev_stop (EV_A_ (W)w);
3198 3525
3199 EV_FREQUENT_CHECK; 3526 EV_FREQUENT_CHECK;
3200} 3527}
3528#endif
3201 3529
3530#if EV_CHECK_ENABLE
3202void 3531void
3203ev_check_start (EV_P_ ev_check *w) 3532ev_check_start (EV_P_ ev_check *w)
3204{ 3533{
3205 if (expect_false (ev_is_active (w))) 3534 if (expect_false (ev_is_active (w)))
3206 return; 3535 return;
… …
3232 3561
3233 ev_stop (EV_A_ (W)w); 3562 ev_stop (EV_A_ (W)w);
3234 3563
3235 EV_FREQUENT_CHECK; 3564 EV_FREQUENT_CHECK;
3236} 3565}
3566#endif
3237 3567
3238#if EV_EMBED_ENABLE 3568#if EV_EMBED_ENABLE
3239void noinline 3569void noinline
3240ev_embed_sweep (EV_P_ ev_embed *w) 3570ev_embed_sweep (EV_P_ ev_embed *w)
3241{ 3571{
3242 ev_loop (w->other, EVLOOP_NONBLOCK); 3572 ev_run (w->other, EVRUN_NOWAIT);
3243} 3573}
3244 3574
3245static void 3575static void
3246embed_io_cb (EV_P_ ev_io *io, int revents) 3576embed_io_cb (EV_P_ ev_io *io, int revents)
3247{ 3577{
3248 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3578 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3249 3579
3250 if (ev_cb (w)) 3580 if (ev_cb (w))
3251 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3581 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3252 else 3582 else
3253 ev_loop (w->other, EVLOOP_NONBLOCK); 3583 ev_run (w->other, EVRUN_NOWAIT);
3254} 3584}
3255 3585
3256static void 3586static void
3257embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3587embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3258{ 3588{
… …
3262 EV_P = w->other; 3592 EV_P = w->other;
3263 3593
3264 while (fdchangecnt) 3594 while (fdchangecnt)
3265 { 3595 {
3266 fd_reify (EV_A); 3596 fd_reify (EV_A);
3267 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3597 ev_run (EV_A_ EVRUN_NOWAIT);
3268 } 3598 }
3269 } 3599 }
3270} 3600}
3271 3601
3272static void 3602static void
… …
3278 3608
3279 { 3609 {
3280 EV_P = w->other; 3610 EV_P = w->other;
3281 3611
3282 ev_loop_fork (EV_A); 3612 ev_loop_fork (EV_A);
3283 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3613 ev_run (EV_A_ EVRUN_NOWAIT);
3284 } 3614 }
3285 3615
3286 ev_embed_start (EV_A_ w); 3616 ev_embed_start (EV_A_ w);
3287} 3617}
3288 3618
… …
3336 3666
3337 ev_io_stop (EV_A_ &w->io); 3667 ev_io_stop (EV_A_ &w->io);
3338 ev_prepare_stop (EV_A_ &w->prepare); 3668 ev_prepare_stop (EV_A_ &w->prepare);
3339 ev_fork_stop (EV_A_ &w->fork); 3669 ev_fork_stop (EV_A_ &w->fork);
3340 3670
3671 ev_stop (EV_A_ (W)w);
3672
3341 EV_FREQUENT_CHECK; 3673 EV_FREQUENT_CHECK;
3342} 3674}
3343#endif 3675#endif
3344 3676
3345#if EV_FORK_ENABLE 3677#if EV_FORK_ENABLE
… …
3378 3710
3379 EV_FREQUENT_CHECK; 3711 EV_FREQUENT_CHECK;
3380} 3712}
3381#endif 3713#endif
3382 3714
3383#if EV_ASYNC_ENABLE 3715#if EV_CLEANUP_ENABLE
3384void 3716void
3385ev_async_start (EV_P_ ev_async *w) 3717ev_cleanup_start (EV_P_ ev_cleanup *w)
3386{ 3718{
3387 if (expect_false (ev_is_active (w))) 3719 if (expect_false (ev_is_active (w)))
3388 return; 3720 return;
3721
3722 EV_FREQUENT_CHECK;
3723
3724 ev_start (EV_A_ (W)w, ++cleanupcnt);
3725 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3726 cleanups [cleanupcnt - 1] = w;
3727
3728 /* cleanup watchers should never keep a refcount on the loop */
3729 ev_unref (EV_A);
3730 EV_FREQUENT_CHECK;
3731}
3732
3733void
3734ev_cleanup_stop (EV_P_ ev_cleanup *w)
3735{
3736 clear_pending (EV_A_ (W)w);
3737 if (expect_false (!ev_is_active (w)))
3738 return;
3739
3740 EV_FREQUENT_CHECK;
3741 ev_ref (EV_A);
3742
3743 {
3744 int active = ev_active (w);
3745
3746 cleanups [active - 1] = cleanups [--cleanupcnt];
3747 ev_active (cleanups [active - 1]) = active;
3748 }
3749
3750 ev_stop (EV_A_ (W)w);
3751
3752 EV_FREQUENT_CHECK;
3753}
3754#endif
3755
3756#if EV_ASYNC_ENABLE
3757void
3758ev_async_start (EV_P_ ev_async *w)
3759{
3760 if (expect_false (ev_is_active (w)))
3761 return;
3762
3763 w->sent = 0;
3389 3764
3390 evpipe_init (EV_A); 3765 evpipe_init (EV_A);
3391 3766
3392 EV_FREQUENT_CHECK; 3767 EV_FREQUENT_CHECK;
3393 3768
… …
3471{ 3846{
3472 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3847 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3473 3848
3474 if (expect_false (!once)) 3849 if (expect_false (!once))
3475 { 3850 {
3476 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3851 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3477 return; 3852 return;
3478 } 3853 }
3479 3854
3480 once->cb = cb; 3855 once->cb = cb;
3481 once->arg = arg; 3856 once->arg = arg;
… …
3568 if (types & EV_ASYNC) 3943 if (types & EV_ASYNC)
3569 for (i = asynccnt; i--; ) 3944 for (i = asynccnt; i--; )
3570 cb (EV_A_ EV_ASYNC, asyncs [i]); 3945 cb (EV_A_ EV_ASYNC, asyncs [i]);
3571#endif 3946#endif
3572 3947
3948#if EV_PREPARE_ENABLE
3573 if (types & EV_PREPARE) 3949 if (types & EV_PREPARE)
3574 for (i = preparecnt; i--; ) 3950 for (i = preparecnt; i--; )
3575#if EV_EMBED_ENABLE 3951# if EV_EMBED_ENABLE
3576 if (ev_cb (prepares [i]) != embed_prepare_cb) 3952 if (ev_cb (prepares [i]) != embed_prepare_cb)
3577#endif 3953# endif
3578 cb (EV_A_ EV_PREPARE, prepares [i]); 3954 cb (EV_A_ EV_PREPARE, prepares [i]);
3955#endif
3579 3956
3957#if EV_CHECK_ENABLE
3580 if (types & EV_CHECK) 3958 if (types & EV_CHECK)
3581 for (i = checkcnt; i--; ) 3959 for (i = checkcnt; i--; )
3582 cb (EV_A_ EV_CHECK, checks [i]); 3960 cb (EV_A_ EV_CHECK, checks [i]);
3961#endif
3583 3962
3963#if EV_SIGNAL_ENABLE
3584 if (types & EV_SIGNAL) 3964 if (types & EV_SIGNAL)
3585 for (i = 0; i < EV_NSIG - 1; ++i) 3965 for (i = 0; i < EV_NSIG - 1; ++i)
3586 for (wl = signals [i].head; wl; ) 3966 for (wl = signals [i].head; wl; )
3587 { 3967 {
3588 wn = wl->next; 3968 wn = wl->next;
3589 cb (EV_A_ EV_SIGNAL, wl); 3969 cb (EV_A_ EV_SIGNAL, wl);
3590 wl = wn; 3970 wl = wn;
3591 } 3971 }
3972#endif
3592 3973
3974#if EV_CHILD_ENABLE
3593 if (types & EV_CHILD) 3975 if (types & EV_CHILD)
3594 for (i = EV_PID_HASHSIZE; i--; ) 3976 for (i = (EV_PID_HASHSIZE); i--; )
3595 for (wl = childs [i]; wl; ) 3977 for (wl = childs [i]; wl; )
3596 { 3978 {
3597 wn = wl->next; 3979 wn = wl->next;
3598 cb (EV_A_ EV_CHILD, wl); 3980 cb (EV_A_ EV_CHILD, wl);
3599 wl = wn; 3981 wl = wn;
3600 } 3982 }
3983#endif
3601/* EV_STAT 0x00001000 /* stat data changed */ 3984/* EV_STAT 0x00001000 /* stat data changed */
3602/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3985/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3603} 3986}
3604#endif 3987#endif
3605 3988
3606#if EV_MULTIPLICITY 3989#if EV_MULTIPLICITY
3607 #include "ev_wrap.h" 3990 #include "ev_wrap.h"
3608#endif 3991#endif
3609 3992
3610#ifdef __cplusplus 3993EV_CPP(})
3611}
3612#endif
3613 3994

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines