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Comparing libev/ev.c (file contents):
Revision 1.303 by root, Sun Jul 19 01:36:34 2009 UTC vs.
Revision 1.401 by root, Tue Dec 20 04:08:35 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
… …
182# define WIN32_LEAN_AND_MEAN 194# define WIN32_LEAN_AND_MEAN
183# include <windows.h> 195# include <windows.h>
184# ifndef EV_SELECT_IS_WINSOCKET 196# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 197# define EV_SELECT_IS_WINSOCKET 1
186# endif 198# endif
199# undef EV_AVOID_STDIO
187#endif 200#endif
201
202/* OS X, in its infinite idiocy, actually HARDCODES
203 * a limit of 1024 into their select. Where people have brains,
204 * OS X engineers apparently have a vacuum. Or maybe they were
205 * ordered to have a vacuum, or they do anything for money.
206 * This might help. Or not.
207 */
208#define _DARWIN_UNLIMITED_SELECT 1
188 209
189/* this block tries to deduce configuration from header-defined symbols and defaults */ 210/* this block tries to deduce configuration from header-defined symbols and defaults */
211
212/* try to deduce the maximum number of signals on this platform */
213#if defined (EV_NSIG)
214/* use what's provided */
215#elif defined (NSIG)
216# define EV_NSIG (NSIG)
217#elif defined(_NSIG)
218# define EV_NSIG (_NSIG)
219#elif defined (SIGMAX)
220# define EV_NSIG (SIGMAX+1)
221#elif defined (SIG_MAX)
222# define EV_NSIG (SIG_MAX+1)
223#elif defined (_SIG_MAX)
224# define EV_NSIG (_SIG_MAX+1)
225#elif defined (MAXSIG)
226# define EV_NSIG (MAXSIG+1)
227#elif defined (MAX_SIG)
228# define EV_NSIG (MAX_SIG+1)
229#elif defined (SIGARRAYSIZE)
230# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
231#elif defined (_sys_nsig)
232# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
233#else
234# error "unable to find value for NSIG, please report"
235/* to make it compile regardless, just remove the above line, */
236/* but consider reporting it, too! :) */
237# define EV_NSIG 65
238#endif
239
240#ifndef EV_USE_FLOOR
241# define EV_USE_FLOOR 0
242#endif
190 243
191#ifndef EV_USE_CLOCK_SYSCALL 244#ifndef EV_USE_CLOCK_SYSCALL
192# if __linux && __GLIBC__ >= 2 245# if __linux && __GLIBC__ >= 2
193# define EV_USE_CLOCK_SYSCALL 1 246# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
194# else 247# else
195# define EV_USE_CLOCK_SYSCALL 0 248# define EV_USE_CLOCK_SYSCALL 0
196# endif 249# endif
197#endif 250#endif
198 251
199#ifndef EV_USE_MONOTONIC 252#ifndef EV_USE_MONOTONIC
200# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 253# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
201# define EV_USE_MONOTONIC 1 254# define EV_USE_MONOTONIC EV_FEATURE_OS
202# else 255# else
203# define EV_USE_MONOTONIC 0 256# define EV_USE_MONOTONIC 0
204# endif 257# endif
205#endif 258#endif
206 259
… …
208# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 261# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
209#endif 262#endif
210 263
211#ifndef EV_USE_NANOSLEEP 264#ifndef EV_USE_NANOSLEEP
212# if _POSIX_C_SOURCE >= 199309L 265# if _POSIX_C_SOURCE >= 199309L
213# define EV_USE_NANOSLEEP 1 266# define EV_USE_NANOSLEEP EV_FEATURE_OS
214# else 267# else
215# define EV_USE_NANOSLEEP 0 268# define EV_USE_NANOSLEEP 0
216# endif 269# endif
217#endif 270#endif
218 271
219#ifndef EV_USE_SELECT 272#ifndef EV_USE_SELECT
220# define EV_USE_SELECT 1 273# define EV_USE_SELECT EV_FEATURE_BACKENDS
221#endif 274#endif
222 275
223#ifndef EV_USE_POLL 276#ifndef EV_USE_POLL
224# ifdef _WIN32 277# ifdef _WIN32
225# define EV_USE_POLL 0 278# define EV_USE_POLL 0
226# else 279# else
227# define EV_USE_POLL 1 280# define EV_USE_POLL EV_FEATURE_BACKENDS
228# endif 281# endif
229#endif 282#endif
230 283
231#ifndef EV_USE_EPOLL 284#ifndef EV_USE_EPOLL
232# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 285# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
233# define EV_USE_EPOLL 1 286# define EV_USE_EPOLL EV_FEATURE_BACKENDS
234# else 287# else
235# define EV_USE_EPOLL 0 288# define EV_USE_EPOLL 0
236# endif 289# endif
237#endif 290#endif
238 291
… …
244# define EV_USE_PORT 0 297# define EV_USE_PORT 0
245#endif 298#endif
246 299
247#ifndef EV_USE_INOTIFY 300#ifndef EV_USE_INOTIFY
248# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 301# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
249# define EV_USE_INOTIFY 1 302# define EV_USE_INOTIFY EV_FEATURE_OS
250# else 303# else
251# define EV_USE_INOTIFY 0 304# define EV_USE_INOTIFY 0
252# endif 305# endif
253#endif 306#endif
254 307
255#ifndef EV_PID_HASHSIZE 308#ifndef EV_PID_HASHSIZE
256# if EV_MINIMAL 309# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_PID_HASHSIZE 1
258# else
259# define EV_PID_HASHSIZE 16
260# endif
261#endif 310#endif
262 311
263#ifndef EV_INOTIFY_HASHSIZE 312#ifndef EV_INOTIFY_HASHSIZE
264# if EV_MINIMAL 313# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
265# define EV_INOTIFY_HASHSIZE 1
266# else
267# define EV_INOTIFY_HASHSIZE 16
268# endif
269#endif 314#endif
270 315
271#ifndef EV_USE_EVENTFD 316#ifndef EV_USE_EVENTFD
272# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 317# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
273# define EV_USE_EVENTFD 1 318# define EV_USE_EVENTFD EV_FEATURE_OS
274# else 319# else
275# define EV_USE_EVENTFD 0 320# define EV_USE_EVENTFD 0
276# endif 321# endif
277#endif 322#endif
278 323
279#ifndef EV_USE_SIGNALFD 324#ifndef EV_USE_SIGNALFD
280# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) 325# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
281# define EV_USE_SIGNALFD 1 326# define EV_USE_SIGNALFD EV_FEATURE_OS
282# else 327# else
283# define EV_USE_SIGNALFD 0 328# define EV_USE_SIGNALFD 0
284# endif 329# endif
285#endif 330#endif
286 331
… …
289# define EV_USE_4HEAP 1 334# define EV_USE_4HEAP 1
290# define EV_HEAP_CACHE_AT 1 335# define EV_HEAP_CACHE_AT 1
291#endif 336#endif
292 337
293#ifndef EV_VERIFY 338#ifndef EV_VERIFY
294# define EV_VERIFY !EV_MINIMAL 339# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
295#endif 340#endif
296 341
297#ifndef EV_USE_4HEAP 342#ifndef EV_USE_4HEAP
298# define EV_USE_4HEAP !EV_MINIMAL 343# define EV_USE_4HEAP EV_FEATURE_DATA
299#endif 344#endif
300 345
301#ifndef EV_HEAP_CACHE_AT 346#ifndef EV_HEAP_CACHE_AT
302# define EV_HEAP_CACHE_AT !EV_MINIMAL 347# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
303#endif 348#endif
304 349
305/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 350/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
306/* which makes programs even slower. might work on other unices, too. */ 351/* which makes programs even slower. might work on other unices, too. */
307#if EV_USE_CLOCK_SYSCALL 352#if EV_USE_CLOCK_SYSCALL
… …
316# endif 361# endif
317#endif 362#endif
318 363
319/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 364/* this block fixes any misconfiguration where we know we run into trouble otherwise */
320 365
366#ifdef _AIX
367/* AIX has a completely broken poll.h header */
368# undef EV_USE_POLL
369# define EV_USE_POLL 0
370#endif
371
321#ifndef CLOCK_MONOTONIC 372#ifndef CLOCK_MONOTONIC
322# undef EV_USE_MONOTONIC 373# undef EV_USE_MONOTONIC
323# define EV_USE_MONOTONIC 0 374# define EV_USE_MONOTONIC 0
324#endif 375#endif
325 376
… …
332# undef EV_USE_INOTIFY 383# undef EV_USE_INOTIFY
333# define EV_USE_INOTIFY 0 384# define EV_USE_INOTIFY 0
334#endif 385#endif
335 386
336#if !EV_USE_NANOSLEEP 387#if !EV_USE_NANOSLEEP
337# ifndef _WIN32 388/* hp-ux has it in sys/time.h, which we unconditionally include above */
389# if !defined(_WIN32) && !defined(__hpux)
338# include <sys/select.h> 390# include <sys/select.h>
339# endif 391# endif
340#endif 392#endif
341 393
342#if EV_USE_INOTIFY 394#if EV_USE_INOTIFY
343# include <sys/utsname.h>
344# include <sys/statfs.h> 395# include <sys/statfs.h>
345# include <sys/inotify.h> 396# include <sys/inotify.h>
346/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 397/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
347# ifndef IN_DONT_FOLLOW 398# ifndef IN_DONT_FOLLOW
348# undef EV_USE_INOTIFY 399# undef EV_USE_INOTIFY
… …
359# include <stdint.h> 410# include <stdint.h>
360# ifndef EFD_NONBLOCK 411# ifndef EFD_NONBLOCK
361# define EFD_NONBLOCK O_NONBLOCK 412# define EFD_NONBLOCK O_NONBLOCK
362# endif 413# endif
363# ifndef EFD_CLOEXEC 414# ifndef EFD_CLOEXEC
415# ifdef O_CLOEXEC
364# define EFD_CLOEXEC O_CLOEXEC 416# define EFD_CLOEXEC O_CLOEXEC
417# else
418# define EFD_CLOEXEC 02000000
419# endif
365# endif 420# endif
366# ifdef __cplusplus 421EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
367extern "C" { 422#endif
423
424#if EV_USE_SIGNALFD
425/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
426# include <stdint.h>
427# ifndef SFD_NONBLOCK
428# define SFD_NONBLOCK O_NONBLOCK
368# endif 429# endif
369int eventfd (unsigned int initval, int flags); 430# ifndef SFD_CLOEXEC
370# ifdef __cplusplus 431# ifdef O_CLOEXEC
371} 432# define SFD_CLOEXEC O_CLOEXEC
433# else
434# define SFD_CLOEXEC 02000000
435# endif
372# endif 436# endif
373#endif 437EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
374 438
375#if EV_USE_SIGNALFD 439struct signalfd_siginfo
376# include <sys/signalfd.h> 440{
441 uint32_t ssi_signo;
442 char pad[128 - sizeof (uint32_t)];
443};
377#endif 444#endif
378 445
379/**/ 446/**/
380 447
381#if EV_VERIFY >= 3 448#if EV_VERIFY >= 3
382# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 449# define EV_FREQUENT_CHECK ev_verify (EV_A)
383#else 450#else
384# define EV_FREQUENT_CHECK do { } while (0) 451# define EV_FREQUENT_CHECK do { } while (0)
385#endif 452#endif
386 453
387/* 454/*
388 * This is used to avoid floating point rounding problems. 455 * This is used to work around floating point rounding problems.
389 * It is added to ev_rt_now when scheduling periodics
390 * to ensure progress, time-wise, even when rounding
391 * errors are against us.
392 * This value is good at least till the year 4000. 456 * This value is good at least till the year 4000.
393 * Better solutions welcome.
394 */ 457 */
395#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 458#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
459/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
396 460
397#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 461#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
398#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 462#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
399/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
400 463
464#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
465#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
466
467/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
468/* ECB.H BEGIN */
469/*
470 * libecb - http://software.schmorp.de/pkg/libecb
471 *
472 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de>
473 * Copyright (©) 2011 Emanuele Giaquinta
474 * All rights reserved.
475 *
476 * Redistribution and use in source and binary forms, with or without modifica-
477 * tion, are permitted provided that the following conditions are met:
478 *
479 * 1. Redistributions of source code must retain the above copyright notice,
480 * this list of conditions and the following disclaimer.
481 *
482 * 2. Redistributions in binary form must reproduce the above copyright
483 * notice, this list of conditions and the following disclaimer in the
484 * documentation and/or other materials provided with the distribution.
485 *
486 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
487 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
488 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
489 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
490 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
491 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
492 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
493 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
494 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
495 * OF THE POSSIBILITY OF SUCH DAMAGE.
496 */
497
498#ifndef ECB_H
499#define ECB_H
500
501#ifdef _WIN32
502 typedef signed char int8_t;
503 typedef unsigned char uint8_t;
504 typedef signed short int16_t;
505 typedef unsigned short uint16_t;
506 typedef signed int int32_t;
507 typedef unsigned int uint32_t;
401#if __GNUC__ >= 4 508 #if __GNUC__
402# define expect(expr,value) __builtin_expect ((expr),(value)) 509 typedef signed long long int64_t;
403# define noinline __attribute__ ((noinline)) 510 typedef unsigned long long uint64_t;
511 #else /* _MSC_VER || __BORLANDC__ */
512 typedef signed __int64 int64_t;
513 typedef unsigned __int64 uint64_t;
514 #endif
404#else 515#else
405# define expect(expr,value) (expr) 516 #include <inttypes.h>
406# define noinline
407# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
408# define inline
409# endif 517#endif
518
519/* many compilers define _GNUC_ to some versions but then only implement
520 * what their idiot authors think are the "more important" extensions,
521 * causing enormous grief in return for some better fake benchmark numbers.
522 * or so.
523 * we try to detect these and simply assume they are not gcc - if they have
524 * an issue with that they should have done it right in the first place.
525 */
526#ifndef ECB_GCC_VERSION
527 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
528 #define ECB_GCC_VERSION(major,minor) 0
529 #else
530 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
410#endif 531 #endif
532#endif
411 533
534/*****************************************************************************/
535
536/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
537/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
538
539#if ECB_NO_THREADS || ECB_NO_SMP
540 #define ECB_MEMORY_FENCE do { } while (0)
541#endif
542
543#ifndef ECB_MEMORY_FENCE
544 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__)
545 #if __i386__
546 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
547 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
548 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
549 #elif __amd64
550 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
551 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
552 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
553 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
555 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
556 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)
557 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
558 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
559 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
560 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
561 #endif
562 #endif
563#endif
564
565#ifndef ECB_MEMORY_FENCE
566 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)
567 #define ECB_MEMORY_FENCE __sync_synchronize ()
568 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
569 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
570 #elif _MSC_VER >= 1400 /* VC++ 2005 */
571 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
572 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
573 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
574 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
575 #elif defined(_WIN32)
576 #include <WinNT.h>
577 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
578 #endif
579#endif
580
581#ifndef ECB_MEMORY_FENCE
582 #if !ECB_AVOID_PTHREADS
583 /*
584 * if you get undefined symbol references to pthread_mutex_lock,
585 * or failure to find pthread.h, then you should implement
586 * the ECB_MEMORY_FENCE operations for your cpu/compiler
587 * OR provide pthread.h and link against the posix thread library
588 * of your system.
589 */
590 #include <pthread.h>
591 #define ECB_NEEDS_PTHREADS 1
592 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
593
594 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
595 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
596 #endif
597#endif
598
599#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
600 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
601#endif
602
603#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
604 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
605#endif
606
607/*****************************************************************************/
608
609#define ECB_C99 (__STDC_VERSION__ >= 199901L)
610
611#if __cplusplus
612 #define ecb_inline static inline
613#elif ECB_GCC_VERSION(2,5)
614 #define ecb_inline static __inline__
615#elif ECB_C99
616 #define ecb_inline static inline
617#else
618 #define ecb_inline static
619#endif
620
621#if ECB_GCC_VERSION(3,3)
622 #define ecb_restrict __restrict__
623#elif ECB_C99
624 #define ecb_restrict restrict
625#else
626 #define ecb_restrict
627#endif
628
629typedef int ecb_bool;
630
631#define ECB_CONCAT_(a, b) a ## b
632#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
633#define ECB_STRINGIFY_(a) # a
634#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
635
636#define ecb_function_ ecb_inline
637
638#if ECB_GCC_VERSION(3,1)
639 #define ecb_attribute(attrlist) __attribute__(attrlist)
640 #define ecb_is_constant(expr) __builtin_constant_p (expr)
641 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
642 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
643#else
644 #define ecb_attribute(attrlist)
645 #define ecb_is_constant(expr) 0
646 #define ecb_expect(expr,value) (expr)
647 #define ecb_prefetch(addr,rw,locality)
648#endif
649
650/* no emulation for ecb_decltype */
651#if ECB_GCC_VERSION(4,5)
652 #define ecb_decltype(x) __decltype(x)
653#elif ECB_GCC_VERSION(3,0)
654 #define ecb_decltype(x) __typeof(x)
655#endif
656
657#define ecb_noinline ecb_attribute ((__noinline__))
658#define ecb_noreturn ecb_attribute ((__noreturn__))
659#define ecb_unused ecb_attribute ((__unused__))
660#define ecb_const ecb_attribute ((__const__))
661#define ecb_pure ecb_attribute ((__pure__))
662
663#if ECB_GCC_VERSION(4,3)
664 #define ecb_artificial ecb_attribute ((__artificial__))
665 #define ecb_hot ecb_attribute ((__hot__))
666 #define ecb_cold ecb_attribute ((__cold__))
667#else
668 #define ecb_artificial
669 #define ecb_hot
670 #define ecb_cold
671#endif
672
673/* put around conditional expressions if you are very sure that the */
674/* expression is mostly true or mostly false. note that these return */
675/* booleans, not the expression. */
412#define expect_false(expr) expect ((expr) != 0, 0) 676#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
413#define expect_true(expr) expect ((expr) != 0, 1) 677#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
678/* for compatibility to the rest of the world */
679#define ecb_likely(expr) ecb_expect_true (expr)
680#define ecb_unlikely(expr) ecb_expect_false (expr)
681
682/* count trailing zero bits and count # of one bits */
683#if ECB_GCC_VERSION(3,4)
684 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
685 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
686 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
687 #define ecb_ctz32(x) __builtin_ctz (x)
688 #define ecb_ctz64(x) __builtin_ctzll (x)
689 #define ecb_popcount32(x) __builtin_popcount (x)
690 /* no popcountll */
691#else
692 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
693 ecb_function_ int
694 ecb_ctz32 (uint32_t x)
695 {
696 int r = 0;
697
698 x &= ~x + 1; /* this isolates the lowest bit */
699
700#if ECB_branchless_on_i386
701 r += !!(x & 0xaaaaaaaa) << 0;
702 r += !!(x & 0xcccccccc) << 1;
703 r += !!(x & 0xf0f0f0f0) << 2;
704 r += !!(x & 0xff00ff00) << 3;
705 r += !!(x & 0xffff0000) << 4;
706#else
707 if (x & 0xaaaaaaaa) r += 1;
708 if (x & 0xcccccccc) r += 2;
709 if (x & 0xf0f0f0f0) r += 4;
710 if (x & 0xff00ff00) r += 8;
711 if (x & 0xffff0000) r += 16;
712#endif
713
714 return r;
715 }
716
717 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
718 ecb_function_ int
719 ecb_ctz64 (uint64_t x)
720 {
721 int shift = x & 0xffffffffU ? 0 : 32;
722 return ecb_ctz32 (x >> shift) + shift;
723 }
724
725 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
726 ecb_function_ int
727 ecb_popcount32 (uint32_t x)
728 {
729 x -= (x >> 1) & 0x55555555;
730 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
731 x = ((x >> 4) + x) & 0x0f0f0f0f;
732 x *= 0x01010101;
733
734 return x >> 24;
735 }
736
737 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
738 ecb_function_ int ecb_ld32 (uint32_t x)
739 {
740 int r = 0;
741
742 if (x >> 16) { x >>= 16; r += 16; }
743 if (x >> 8) { x >>= 8; r += 8; }
744 if (x >> 4) { x >>= 4; r += 4; }
745 if (x >> 2) { x >>= 2; r += 2; }
746 if (x >> 1) { r += 1; }
747
748 return r;
749 }
750
751 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
752 ecb_function_ int ecb_ld64 (uint64_t x)
753 {
754 int r = 0;
755
756 if (x >> 32) { x >>= 32; r += 32; }
757
758 return r + ecb_ld32 (x);
759 }
760#endif
761
762/* popcount64 is only available on 64 bit cpus as gcc builtin */
763/* so for this version we are lazy */
764ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
765ecb_function_ int
766ecb_popcount64 (uint64_t x)
767{
768 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
769}
770
771ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
772ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
773ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
774ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
775ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
776ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
777ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
778ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
779
780ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
781ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
782ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
783ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
784ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
785ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
786ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
787ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
788
789#if ECB_GCC_VERSION(4,3)
790 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
791 #define ecb_bswap32(x) __builtin_bswap32 (x)
792 #define ecb_bswap64(x) __builtin_bswap64 (x)
793#else
794 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
795 ecb_function_ uint16_t
796 ecb_bswap16 (uint16_t x)
797 {
798 return ecb_rotl16 (x, 8);
799 }
800
801 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
802 ecb_function_ uint32_t
803 ecb_bswap32 (uint32_t x)
804 {
805 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
806 }
807
808 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
809 ecb_function_ uint64_t
810 ecb_bswap64 (uint64_t x)
811 {
812 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
813 }
814#endif
815
816#if ECB_GCC_VERSION(4,5)
817 #define ecb_unreachable() __builtin_unreachable ()
818#else
819 /* this seems to work fine, but gcc always emits a warning for it :/ */
820 ecb_function_ void ecb_unreachable (void) ecb_noreturn;
821 ecb_function_ void ecb_unreachable (void) { }
822#endif
823
824/* try to tell the compiler that some condition is definitely true */
825#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
826
827ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;
828ecb_function_ unsigned char
829ecb_byteorder_helper (void)
830{
831 const uint32_t u = 0x11223344;
832 return *(unsigned char *)&u;
833}
834
835ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;
836ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
837ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
839
840#if ECB_GCC_VERSION(3,0) || ECB_C99
841 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
842#else
843 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
844#endif
845
846#if __cplusplus
847 template<typename T>
848 static inline T ecb_div_rd (T val, T div)
849 {
850 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
851 }
852 template<typename T>
853 static inline T ecb_div_ru (T val, T div)
854 {
855 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
856 }
857#else
858 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
859 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
860#endif
861
862#if ecb_cplusplus_does_not_suck
863 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
864 template<typename T, int N>
865 static inline int ecb_array_length (const T (&arr)[N])
866 {
867 return N;
868 }
869#else
870 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
871#endif
872
873#endif
874
875/* ECB.H END */
876
877#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
878/* if your architecture doesn't need memory fences, e.g. because it is
879 * single-cpu/core, or if you use libev in a project that doesn't use libev
880 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
881 * libev, in which casess the memory fences become nops.
882 * alternatively, you can remove this #error and link against libpthread,
883 * which will then provide the memory fences.
884 */
885# error "memory fences not defined for your architecture, please report"
886#endif
887
888#ifndef ECB_MEMORY_FENCE
889# define ECB_MEMORY_FENCE do { } while (0)
890# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
891# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
892#endif
893
894#define expect_false(cond) ecb_expect_false (cond)
895#define expect_true(cond) ecb_expect_true (cond)
896#define noinline ecb_noinline
897
414#define inline_size static inline 898#define inline_size ecb_inline
415 899
416#if EV_MINIMAL 900#if EV_FEATURE_CODE
901# define inline_speed ecb_inline
902#else
417# define inline_speed static noinline 903# define inline_speed static noinline
418#else
419# define inline_speed static inline
420#endif 904#endif
421 905
422#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 906#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
423 907
424#if EV_MINPRI == EV_MAXPRI 908#if EV_MINPRI == EV_MAXPRI
… …
437#define ev_active(w) ((W)(w))->active 921#define ev_active(w) ((W)(w))->active
438#define ev_at(w) ((WT)(w))->at 922#define ev_at(w) ((WT)(w))->at
439 923
440#if EV_USE_REALTIME 924#if EV_USE_REALTIME
441/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 925/* sig_atomic_t is used to avoid per-thread variables or locking but still */
442/* giving it a reasonably high chance of working on typical architetcures */ 926/* giving it a reasonably high chance of working on typical architectures */
443static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 927static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
444#endif 928#endif
445 929
446#if EV_USE_MONOTONIC 930#if EV_USE_MONOTONIC
447static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 931static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
448#endif 932#endif
449 933
934#ifndef EV_FD_TO_WIN32_HANDLE
935# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
936#endif
937#ifndef EV_WIN32_HANDLE_TO_FD
938# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
939#endif
940#ifndef EV_WIN32_CLOSE_FD
941# define EV_WIN32_CLOSE_FD(fd) close (fd)
942#endif
943
450#ifdef _WIN32 944#ifdef _WIN32
451# include "ev_win32.c" 945# include "ev_win32.c"
452#endif 946#endif
453 947
454/*****************************************************************************/ 948/*****************************************************************************/
455 949
950/* define a suitable floor function (only used by periodics atm) */
951
952#if EV_USE_FLOOR
953# include <math.h>
954# define ev_floor(v) floor (v)
955#else
956
957#include <float.h>
958
959/* a floor() replacement function, should be independent of ev_tstamp type */
960static ev_tstamp noinline
961ev_floor (ev_tstamp v)
962{
963 /* the choice of shift factor is not terribly important */
964#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
965 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
966#else
967 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
968#endif
969
970 /* argument too large for an unsigned long? */
971 if (expect_false (v >= shift))
972 {
973 ev_tstamp f;
974
975 if (v == v - 1.)
976 return v; /* very large number */
977
978 f = shift * ev_floor (v * (1. / shift));
979 return f + ev_floor (v - f);
980 }
981
982 /* special treatment for negative args? */
983 if (expect_false (v < 0.))
984 {
985 ev_tstamp f = -ev_floor (-v);
986
987 return f - (f == v ? 0 : 1);
988 }
989
990 /* fits into an unsigned long */
991 return (unsigned long)v;
992}
993
994#endif
995
996/*****************************************************************************/
997
998#ifdef __linux
999# include <sys/utsname.h>
1000#endif
1001
1002static unsigned int noinline ecb_cold
1003ev_linux_version (void)
1004{
1005#ifdef __linux
1006 unsigned int v = 0;
1007 struct utsname buf;
1008 int i;
1009 char *p = buf.release;
1010
1011 if (uname (&buf))
1012 return 0;
1013
1014 for (i = 3+1; --i; )
1015 {
1016 unsigned int c = 0;
1017
1018 for (;;)
1019 {
1020 if (*p >= '0' && *p <= '9')
1021 c = c * 10 + *p++ - '0';
1022 else
1023 {
1024 p += *p == '.';
1025 break;
1026 }
1027 }
1028
1029 v = (v << 8) | c;
1030 }
1031
1032 return v;
1033#else
1034 return 0;
1035#endif
1036}
1037
1038/*****************************************************************************/
1039
1040#if EV_AVOID_STDIO
1041static void noinline ecb_cold
1042ev_printerr (const char *msg)
1043{
1044 write (STDERR_FILENO, msg, strlen (msg));
1045}
1046#endif
1047
456static void (*syserr_cb)(const char *msg); 1048static void (*syserr_cb)(const char *msg);
457 1049
458void 1050void ecb_cold
459ev_set_syserr_cb (void (*cb)(const char *msg)) 1051ev_set_syserr_cb (void (*cb)(const char *msg))
460{ 1052{
461 syserr_cb = cb; 1053 syserr_cb = cb;
462} 1054}
463 1055
464static void noinline 1056static void noinline ecb_cold
465ev_syserr (const char *msg) 1057ev_syserr (const char *msg)
466{ 1058{
467 if (!msg) 1059 if (!msg)
468 msg = "(libev) system error"; 1060 msg = "(libev) system error";
469 1061
470 if (syserr_cb) 1062 if (syserr_cb)
471 syserr_cb (msg); 1063 syserr_cb (msg);
472 else 1064 else
473 { 1065 {
1066#if EV_AVOID_STDIO
1067 ev_printerr (msg);
1068 ev_printerr (": ");
1069 ev_printerr (strerror (errno));
1070 ev_printerr ("\n");
1071#else
474 perror (msg); 1072 perror (msg);
1073#endif
475 abort (); 1074 abort ();
476 } 1075 }
477} 1076}
478 1077
479static void * 1078static void *
480ev_realloc_emul (void *ptr, long size) 1079ev_realloc_emul (void *ptr, long size)
481{ 1080{
1081#if __GLIBC__
1082 return realloc (ptr, size);
1083#else
482 /* some systems, notably openbsd and darwin, fail to properly 1084 /* some systems, notably openbsd and darwin, fail to properly
483 * implement realloc (x, 0) (as required by both ansi c-98 and 1085 * implement realloc (x, 0) (as required by both ansi c-89 and
484 * the single unix specification, so work around them here. 1086 * the single unix specification, so work around them here.
485 */ 1087 */
486 1088
487 if (size) 1089 if (size)
488 return realloc (ptr, size); 1090 return realloc (ptr, size);
489 1091
490 free (ptr); 1092 free (ptr);
491 return 0; 1093 return 0;
1094#endif
492} 1095}
493 1096
494static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1097static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
495 1098
496void 1099void ecb_cold
497ev_set_allocator (void *(*cb)(void *ptr, long size)) 1100ev_set_allocator (void *(*cb)(void *ptr, long size))
498{ 1101{
499 alloc = cb; 1102 alloc = cb;
500} 1103}
501 1104
… …
504{ 1107{
505 ptr = alloc (ptr, size); 1108 ptr = alloc (ptr, size);
506 1109
507 if (!ptr && size) 1110 if (!ptr && size)
508 { 1111 {
1112#if EV_AVOID_STDIO
1113 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1114#else
509 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1115 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1116#endif
510 abort (); 1117 abort ();
511 } 1118 }
512 1119
513 return ptr; 1120 return ptr;
514} 1121}
… …
530 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1137 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
531 unsigned char unused; 1138 unsigned char unused;
532#if EV_USE_EPOLL 1139#if EV_USE_EPOLL
533 unsigned int egen; /* generation counter to counter epoll bugs */ 1140 unsigned int egen; /* generation counter to counter epoll bugs */
534#endif 1141#endif
535#if EV_SELECT_IS_WINSOCKET 1142#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
536 SOCKET handle; 1143 SOCKET handle;
1144#endif
1145#if EV_USE_IOCP
1146 OVERLAPPED or, ow;
537#endif 1147#endif
538} ANFD; 1148} ANFD;
539 1149
540/* stores the pending event set for a given watcher */ 1150/* stores the pending event set for a given watcher */
541typedef struct 1151typedef struct
… …
583 #undef VAR 1193 #undef VAR
584 }; 1194 };
585 #include "ev_wrap.h" 1195 #include "ev_wrap.h"
586 1196
587 static struct ev_loop default_loop_struct; 1197 static struct ev_loop default_loop_struct;
588 struct ev_loop *ev_default_loop_ptr; 1198 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a defintiino despite extern */
589 1199
590#else 1200#else
591 1201
592 ev_tstamp ev_rt_now; 1202 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a defintiino despite extern */
593 #define VAR(name,decl) static decl; 1203 #define VAR(name,decl) static decl;
594 #include "ev_vars.h" 1204 #include "ev_vars.h"
595 #undef VAR 1205 #undef VAR
596 1206
597 static int ev_default_loop_ptr; 1207 static int ev_default_loop_ptr;
598 1208
599#endif 1209#endif
600 1210
601#if EV_MINIMAL < 2 1211#if EV_FEATURE_API
602# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1212# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
603# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1213# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
604# define EV_INVOKE_PENDING invoke_cb (EV_A) 1214# define EV_INVOKE_PENDING invoke_cb (EV_A)
605#else 1215#else
606# define EV_RELEASE_CB (void)0 1216# define EV_RELEASE_CB (void)0
607# define EV_ACQUIRE_CB (void)0 1217# define EV_ACQUIRE_CB (void)0
608# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1218# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
609#endif 1219#endif
610 1220
611#define EVUNLOOP_RECURSE 0x80 1221#define EVBREAK_RECURSE 0x80
612 1222
613/*****************************************************************************/ 1223/*****************************************************************************/
614 1224
615#ifndef EV_HAVE_EV_TIME 1225#ifndef EV_HAVE_EV_TIME
616ev_tstamp 1226ev_tstamp
… …
660 if (delay > 0.) 1270 if (delay > 0.)
661 { 1271 {
662#if EV_USE_NANOSLEEP 1272#if EV_USE_NANOSLEEP
663 struct timespec ts; 1273 struct timespec ts;
664 1274
665 ts.tv_sec = (time_t)delay; 1275 EV_TS_SET (ts, delay);
666 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
667
668 nanosleep (&ts, 0); 1276 nanosleep (&ts, 0);
669#elif defined(_WIN32) 1277#elif defined(_WIN32)
670 Sleep ((unsigned long)(delay * 1e3)); 1278 Sleep ((unsigned long)(delay * 1e3));
671#else 1279#else
672 struct timeval tv; 1280 struct timeval tv;
673 1281
674 tv.tv_sec = (time_t)delay;
675 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
676
677 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1282 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
678 /* something not guaranteed by newer posix versions, but guaranteed */ 1283 /* something not guaranteed by newer posix versions, but guaranteed */
679 /* by older ones */ 1284 /* by older ones */
1285 EV_TV_SET (tv, delay);
680 select (0, 0, 0, 0, &tv); 1286 select (0, 0, 0, 0, &tv);
681#endif 1287#endif
682 } 1288 }
683} 1289}
684 1290
685/*****************************************************************************/ 1291/*****************************************************************************/
686 1292
687#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1293#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
688 1294
689/* find a suitable new size for the given array, */ 1295/* find a suitable new size for the given array, */
690/* hopefully by rounding to a ncie-to-malloc size */ 1296/* hopefully by rounding to a nice-to-malloc size */
691inline_size int 1297inline_size int
692array_nextsize (int elem, int cur, int cnt) 1298array_nextsize (int elem, int cur, int cnt)
693{ 1299{
694 int ncur = cur + 1; 1300 int ncur = cur + 1;
695 1301
696 do 1302 do
697 ncur <<= 1; 1303 ncur <<= 1;
698 while (cnt > ncur); 1304 while (cnt > ncur);
699 1305
700 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1306 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
701 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1307 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
702 { 1308 {
703 ncur *= elem; 1309 ncur *= elem;
704 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1310 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
705 ncur = ncur - sizeof (void *) * 4; 1311 ncur = ncur - sizeof (void *) * 4;
… …
707 } 1313 }
708 1314
709 return ncur; 1315 return ncur;
710} 1316}
711 1317
712static noinline void * 1318static void * noinline ecb_cold
713array_realloc (int elem, void *base, int *cur, int cnt) 1319array_realloc (int elem, void *base, int *cur, int cnt)
714{ 1320{
715 *cur = array_nextsize (elem, *cur, cnt); 1321 *cur = array_nextsize (elem, *cur, cnt);
716 return ev_realloc (base, elem * *cur); 1322 return ev_realloc (base, elem * *cur);
717} 1323}
… …
720 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1326 memset ((void *)(base), 0, sizeof (*(base)) * (count))
721 1327
722#define array_needsize(type,base,cur,cnt,init) \ 1328#define array_needsize(type,base,cur,cnt,init) \
723 if (expect_false ((cnt) > (cur))) \ 1329 if (expect_false ((cnt) > (cur))) \
724 { \ 1330 { \
725 int ocur_ = (cur); \ 1331 int ecb_unused ocur_ = (cur); \
726 (base) = (type *)array_realloc \ 1332 (base) = (type *)array_realloc \
727 (sizeof (type), (base), &(cur), (cnt)); \ 1333 (sizeof (type), (base), &(cur), (cnt)); \
728 init ((base) + (ocur_), (cur) - ocur_); \ 1334 init ((base) + (ocur_), (cur) - ocur_); \
729 } 1335 }
730 1336
… …
791} 1397}
792 1398
793/*****************************************************************************/ 1399/*****************************************************************************/
794 1400
795inline_speed void 1401inline_speed void
796fd_event_nc (EV_P_ int fd, int revents) 1402fd_event_nocheck (EV_P_ int fd, int revents)
797{ 1403{
798 ANFD *anfd = anfds + fd; 1404 ANFD *anfd = anfds + fd;
799 ev_io *w; 1405 ev_io *w;
800 1406
801 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1407 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
813fd_event (EV_P_ int fd, int revents) 1419fd_event (EV_P_ int fd, int revents)
814{ 1420{
815 ANFD *anfd = anfds + fd; 1421 ANFD *anfd = anfds + fd;
816 1422
817 if (expect_true (!anfd->reify)) 1423 if (expect_true (!anfd->reify))
818 fd_event_nc (EV_A_ fd, revents); 1424 fd_event_nocheck (EV_A_ fd, revents);
819} 1425}
820 1426
821void 1427void
822ev_feed_fd_event (EV_P_ int fd, int revents) 1428ev_feed_fd_event (EV_P_ int fd, int revents)
823{ 1429{
824 if (fd >= 0 && fd < anfdmax) 1430 if (fd >= 0 && fd < anfdmax)
825 fd_event_nc (EV_A_ fd, revents); 1431 fd_event_nocheck (EV_A_ fd, revents);
826} 1432}
827 1433
828/* make sure the external fd watch events are in-sync */ 1434/* make sure the external fd watch events are in-sync */
829/* with the kernel/libev internal state */ 1435/* with the kernel/libev internal state */
830inline_size void 1436inline_size void
831fd_reify (EV_P) 1437fd_reify (EV_P)
832{ 1438{
833 int i; 1439 int i;
834 1440
1441#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1442 for (i = 0; i < fdchangecnt; ++i)
1443 {
1444 int fd = fdchanges [i];
1445 ANFD *anfd = anfds + fd;
1446
1447 if (anfd->reify & EV__IOFDSET && anfd->head)
1448 {
1449 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1450
1451 if (handle != anfd->handle)
1452 {
1453 unsigned long arg;
1454
1455 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1456
1457 /* handle changed, but fd didn't - we need to do it in two steps */
1458 backend_modify (EV_A_ fd, anfd->events, 0);
1459 anfd->events = 0;
1460 anfd->handle = handle;
1461 }
1462 }
1463 }
1464#endif
1465
835 for (i = 0; i < fdchangecnt; ++i) 1466 for (i = 0; i < fdchangecnt; ++i)
836 { 1467 {
837 int fd = fdchanges [i]; 1468 int fd = fdchanges [i];
838 ANFD *anfd = anfds + fd; 1469 ANFD *anfd = anfds + fd;
839 ev_io *w; 1470 ev_io *w;
840 1471
841 unsigned char events = 0; 1472 unsigned char o_events = anfd->events;
1473 unsigned char o_reify = anfd->reify;
842 1474
843 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1475 anfd->reify = 0;
844 events |= (unsigned char)w->events;
845 1476
846#if EV_SELECT_IS_WINSOCKET 1477 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
847 if (events)
848 { 1478 {
849 unsigned long arg; 1479 anfd->events = 0;
850 #ifdef EV_FD_TO_WIN32_HANDLE 1480
851 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1481 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
852 #else 1482 anfd->events |= (unsigned char)w->events;
853 anfd->handle = _get_osfhandle (fd); 1483
854 #endif 1484 if (o_events != anfd->events)
855 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1485 o_reify = EV__IOFDSET; /* actually |= */
856 } 1486 }
857#endif
858 1487
859 { 1488 if (o_reify & EV__IOFDSET)
860 unsigned char o_events = anfd->events;
861 unsigned char o_reify = anfd->reify;
862
863 anfd->reify = 0;
864 anfd->events = events;
865
866 if (o_events != events || o_reify & EV__IOFDSET)
867 backend_modify (EV_A_ fd, o_events, events); 1489 backend_modify (EV_A_ fd, o_events, anfd->events);
868 }
869 } 1490 }
870 1491
871 fdchangecnt = 0; 1492 fdchangecnt = 0;
872} 1493}
873 1494
… …
885 fdchanges [fdchangecnt - 1] = fd; 1506 fdchanges [fdchangecnt - 1] = fd;
886 } 1507 }
887} 1508}
888 1509
889/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1510/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
890inline_speed void 1511inline_speed void ecb_cold
891fd_kill (EV_P_ int fd) 1512fd_kill (EV_P_ int fd)
892{ 1513{
893 ev_io *w; 1514 ev_io *w;
894 1515
895 while ((w = (ev_io *)anfds [fd].head)) 1516 while ((w = (ev_io *)anfds [fd].head))
… …
897 ev_io_stop (EV_A_ w); 1518 ev_io_stop (EV_A_ w);
898 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1519 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
899 } 1520 }
900} 1521}
901 1522
902/* check whether the given fd is atcually valid, for error recovery */ 1523/* check whether the given fd is actually valid, for error recovery */
903inline_size int 1524inline_size int ecb_cold
904fd_valid (int fd) 1525fd_valid (int fd)
905{ 1526{
906#ifdef _WIN32 1527#ifdef _WIN32
907 return _get_osfhandle (fd) != -1; 1528 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
908#else 1529#else
909 return fcntl (fd, F_GETFD) != -1; 1530 return fcntl (fd, F_GETFD) != -1;
910#endif 1531#endif
911} 1532}
912 1533
913/* called on EBADF to verify fds */ 1534/* called on EBADF to verify fds */
914static void noinline 1535static void noinline ecb_cold
915fd_ebadf (EV_P) 1536fd_ebadf (EV_P)
916{ 1537{
917 int fd; 1538 int fd;
918 1539
919 for (fd = 0; fd < anfdmax; ++fd) 1540 for (fd = 0; fd < anfdmax; ++fd)
… …
921 if (!fd_valid (fd) && errno == EBADF) 1542 if (!fd_valid (fd) && errno == EBADF)
922 fd_kill (EV_A_ fd); 1543 fd_kill (EV_A_ fd);
923} 1544}
924 1545
925/* called on ENOMEM in select/poll to kill some fds and retry */ 1546/* called on ENOMEM in select/poll to kill some fds and retry */
926static void noinline 1547static void noinline ecb_cold
927fd_enomem (EV_P) 1548fd_enomem (EV_P)
928{ 1549{
929 int fd; 1550 int fd;
930 1551
931 for (fd = anfdmax; fd--; ) 1552 for (fd = anfdmax; fd--; )
932 if (anfds [fd].events) 1553 if (anfds [fd].events)
933 { 1554 {
934 fd_kill (EV_A_ fd); 1555 fd_kill (EV_A_ fd);
935 return; 1556 break;
936 } 1557 }
937} 1558}
938 1559
939/* usually called after fork if backend needs to re-arm all fds from scratch */ 1560/* usually called after fork if backend needs to re-arm all fds from scratch */
940static void noinline 1561static void noinline
… …
949 anfds [fd].emask = 0; 1570 anfds [fd].emask = 0;
950 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1571 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
951 } 1572 }
952} 1573}
953 1574
1575/* used to prepare libev internal fd's */
1576/* this is not fork-safe */
1577inline_speed void
1578fd_intern (int fd)
1579{
1580#ifdef _WIN32
1581 unsigned long arg = 1;
1582 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1583#else
1584 fcntl (fd, F_SETFD, FD_CLOEXEC);
1585 fcntl (fd, F_SETFL, O_NONBLOCK);
1586#endif
1587}
1588
954/*****************************************************************************/ 1589/*****************************************************************************/
955 1590
956/* 1591/*
957 * the heap functions want a real array index. array index 0 uis guaranteed to not 1592 * the heap functions want a real array index. array index 0 is guaranteed to not
958 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1593 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
959 * the branching factor of the d-tree. 1594 * the branching factor of the d-tree.
960 */ 1595 */
961 1596
962/* 1597/*
… …
1030 1665
1031 for (;;) 1666 for (;;)
1032 { 1667 {
1033 int c = k << 1; 1668 int c = k << 1;
1034 1669
1035 if (c > N + HEAP0 - 1) 1670 if (c >= N + HEAP0)
1036 break; 1671 break;
1037 1672
1038 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1673 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1039 ? 1 : 0; 1674 ? 1 : 0;
1040 1675
… …
1076 1711
1077/* move an element suitably so it is in a correct place */ 1712/* move an element suitably so it is in a correct place */
1078inline_size void 1713inline_size void
1079adjustheap (ANHE *heap, int N, int k) 1714adjustheap (ANHE *heap, int N, int k)
1080{ 1715{
1081 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1716 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1082 upheap (heap, k); 1717 upheap (heap, k);
1083 else 1718 else
1084 downheap (heap, N, k); 1719 downheap (heap, N, k);
1085} 1720}
1086 1721
… …
1099/*****************************************************************************/ 1734/*****************************************************************************/
1100 1735
1101/* associate signal watchers to a signal signal */ 1736/* associate signal watchers to a signal signal */
1102typedef struct 1737typedef struct
1103{ 1738{
1739 EV_ATOMIC_T pending;
1740#if EV_MULTIPLICITY
1741 EV_P;
1742#endif
1104 WL head; 1743 WL head;
1105 EV_ATOMIC_T gotsig;
1106} ANSIG; 1744} ANSIG;
1107 1745
1108static ANSIG *signals; 1746static ANSIG signals [EV_NSIG - 1];
1109static int signalmax;
1110
1111static EV_ATOMIC_T gotsig;
1112 1747
1113/*****************************************************************************/ 1748/*****************************************************************************/
1114 1749
1115/* used to prepare libev internal fd's */ 1750#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1116/* this is not fork-safe */
1117inline_speed void
1118fd_intern (int fd)
1119{
1120#ifdef _WIN32
1121 unsigned long arg = 1;
1122 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1123#else
1124 fcntl (fd, F_SETFD, FD_CLOEXEC);
1125 fcntl (fd, F_SETFL, O_NONBLOCK);
1126#endif
1127}
1128 1751
1129static void noinline 1752static void noinline ecb_cold
1130evpipe_init (EV_P) 1753evpipe_init (EV_P)
1131{ 1754{
1132 if (!ev_is_active (&pipe_w)) 1755 if (!ev_is_active (&pipe_w))
1133 { 1756 {
1134#if EV_USE_EVENTFD 1757# if EV_USE_EVENTFD
1135 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1758 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1136 if (evfd < 0 && errno == EINVAL) 1759 if (evfd < 0 && errno == EINVAL)
1137 evfd = eventfd (0, 0); 1760 evfd = eventfd (0, 0);
1138 1761
1139 if (evfd >= 0) 1762 if (evfd >= 0)
… …
1141 evpipe [0] = -1; 1764 evpipe [0] = -1;
1142 fd_intern (evfd); /* doing it twice doesn't hurt */ 1765 fd_intern (evfd); /* doing it twice doesn't hurt */
1143 ev_io_set (&pipe_w, evfd, EV_READ); 1766 ev_io_set (&pipe_w, evfd, EV_READ);
1144 } 1767 }
1145 else 1768 else
1146#endif 1769# endif
1147 { 1770 {
1148 while (pipe (evpipe)) 1771 while (pipe (evpipe))
1149 ev_syserr ("(libev) error creating signal/async pipe"); 1772 ev_syserr ("(libev) error creating signal/async pipe");
1150 1773
1151 fd_intern (evpipe [0]); 1774 fd_intern (evpipe [0]);
… …
1156 ev_io_start (EV_A_ &pipe_w); 1779 ev_io_start (EV_A_ &pipe_w);
1157 ev_unref (EV_A); /* watcher should not keep loop alive */ 1780 ev_unref (EV_A); /* watcher should not keep loop alive */
1158 } 1781 }
1159} 1782}
1160 1783
1161inline_size void 1784inline_speed void
1162evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1785evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1163{ 1786{
1164 if (!*flag) 1787 if (expect_true (*flag))
1788 return;
1789
1790 *flag = 1;
1791
1792 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1793
1794 pipe_write_skipped = 1;
1795
1796 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1797
1798 if (pipe_write_wanted)
1165 { 1799 {
1800 int old_errno;
1801
1802 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1803
1166 int old_errno = errno; /* save errno because write might clobber it */ 1804 old_errno = errno; /* save errno because write will clobber it */
1167
1168 *flag = 1;
1169 1805
1170#if EV_USE_EVENTFD 1806#if EV_USE_EVENTFD
1171 if (evfd >= 0) 1807 if (evfd >= 0)
1172 { 1808 {
1173 uint64_t counter = 1; 1809 uint64_t counter = 1;
1174 write (evfd, &counter, sizeof (uint64_t)); 1810 write (evfd, &counter, sizeof (uint64_t));
1175 } 1811 }
1176 else 1812 else
1177#endif 1813#endif
1814 {
1815 /* win32 people keep sending patches that change this write() to send() */
1816 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1817 /* so when you think this write should be a send instead, please find out */
1818 /* where your send() is from - it's definitely not the microsoft send, and */
1819 /* tell me. thank you. */
1178 write (evpipe [1], &old_errno, 1); 1820 write (evpipe [1], &(evpipe [1]), 1);
1821 }
1179 1822
1180 errno = old_errno; 1823 errno = old_errno;
1181 } 1824 }
1182} 1825}
1183 1826
1184/* called whenever the libev signal pipe */ 1827/* called whenever the libev signal pipe */
1185/* got some events (signal, async) */ 1828/* got some events (signal, async) */
1186static void 1829static void
1187pipecb (EV_P_ ev_io *iow, int revents) 1830pipecb (EV_P_ ev_io *iow, int revents)
1188{ 1831{
1832 int i;
1833
1834 if (revents & EV_READ)
1835 {
1189#if EV_USE_EVENTFD 1836#if EV_USE_EVENTFD
1190 if (evfd >= 0) 1837 if (evfd >= 0)
1191 { 1838 {
1192 uint64_t counter; 1839 uint64_t counter;
1193 read (evfd, &counter, sizeof (uint64_t)); 1840 read (evfd, &counter, sizeof (uint64_t));
1194 } 1841 }
1195 else 1842 else
1196#endif 1843#endif
1197 { 1844 {
1198 char dummy; 1845 char dummy;
1846 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1199 read (evpipe [0], &dummy, 1); 1847 read (evpipe [0], &dummy, 1);
1848 }
1849 }
1850
1851 pipe_write_skipped = 0;
1852
1853#if EV_SIGNAL_ENABLE
1854 if (sig_pending)
1200 } 1855 {
1856 sig_pending = 0;
1201 1857
1202 if (gotsig && ev_is_default_loop (EV_A)) 1858 for (i = EV_NSIG - 1; i--; )
1203 { 1859 if (expect_false (signals [i].pending))
1204 int signum;
1205 gotsig = 0;
1206
1207 for (signum = signalmax; signum--; )
1208 if (signals [signum].gotsig)
1209 ev_feed_signal_event (EV_A_ signum + 1); 1860 ev_feed_signal_event (EV_A_ i + 1);
1210 } 1861 }
1862#endif
1211 1863
1212#if EV_ASYNC_ENABLE 1864#if EV_ASYNC_ENABLE
1213 if (gotasync) 1865 if (async_pending)
1214 { 1866 {
1215 int i; 1867 async_pending = 0;
1216 gotasync = 0;
1217 1868
1218 for (i = asynccnt; i--; ) 1869 for (i = asynccnt; i--; )
1219 if (asyncs [i]->sent) 1870 if (asyncs [i]->sent)
1220 { 1871 {
1221 asyncs [i]->sent = 0; 1872 asyncs [i]->sent = 0;
… …
1225#endif 1876#endif
1226} 1877}
1227 1878
1228/*****************************************************************************/ 1879/*****************************************************************************/
1229 1880
1881void
1882ev_feed_signal (int signum)
1883{
1884#if EV_MULTIPLICITY
1885 EV_P = signals [signum - 1].loop;
1886
1887 if (!EV_A)
1888 return;
1889#endif
1890
1891 if (!ev_active (&pipe_w))
1892 return;
1893
1894 signals [signum - 1].pending = 1;
1895 evpipe_write (EV_A_ &sig_pending);
1896}
1897
1230static void 1898static void
1231ev_sighandler (int signum) 1899ev_sighandler (int signum)
1232{ 1900{
1233#if EV_MULTIPLICITY
1234 struct ev_loop *loop = &default_loop_struct;
1235#endif
1236
1237#if _WIN32 1901#ifdef _WIN32
1238 signal (signum, ev_sighandler); 1902 signal (signum, ev_sighandler);
1239#endif 1903#endif
1240 1904
1241 signals [signum - 1].gotsig = 1; 1905 ev_feed_signal (signum);
1242 evpipe_write (EV_A_ &gotsig);
1243} 1906}
1244 1907
1245void noinline 1908void noinline
1246ev_feed_signal_event (EV_P_ int signum) 1909ev_feed_signal_event (EV_P_ int signum)
1247{ 1910{
1248 WL w; 1911 WL w;
1249 1912
1913 if (expect_false (signum <= 0 || signum > EV_NSIG))
1914 return;
1915
1916 --signum;
1917
1250#if EV_MULTIPLICITY 1918#if EV_MULTIPLICITY
1251 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1919 /* it is permissible to try to feed a signal to the wrong loop */
1252#endif 1920 /* or, likely more useful, feeding a signal nobody is waiting for */
1253 1921
1254 --signum; 1922 if (expect_false (signals [signum].loop != EV_A))
1255
1256 if (signum < 0 || signum >= signalmax)
1257 return; 1923 return;
1924#endif
1258 1925
1259 signals [signum].gotsig = 0; 1926 signals [signum].pending = 0;
1260 1927
1261 for (w = signals [signum].head; w; w = w->next) 1928 for (w = signals [signum].head; w; w = w->next)
1262 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1929 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1263} 1930}
1264 1931
1265#if EV_USE_SIGNALFD 1932#if EV_USE_SIGNALFD
1266static void 1933static void
1267sigfdcb (EV_P_ ev_io *iow, int revents) 1934sigfdcb (EV_P_ ev_io *iow, int revents)
1268{ 1935{
1269 struct signalfd_siginfo si[4], *sip; 1936 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1270 1937
1271 for (;;) 1938 for (;;)
1272 { 1939 {
1273 ssize_t res = read (sigfd, si, sizeof (si)); 1940 ssize_t res = read (sigfd, si, sizeof (si));
1274 1941
… …
1280 break; 1947 break;
1281 } 1948 }
1282} 1949}
1283#endif 1950#endif
1284 1951
1952#endif
1953
1285/*****************************************************************************/ 1954/*****************************************************************************/
1286 1955
1956#if EV_CHILD_ENABLE
1287static WL childs [EV_PID_HASHSIZE]; 1957static WL childs [EV_PID_HASHSIZE];
1288
1289#ifndef _WIN32
1290 1958
1291static ev_signal childev; 1959static ev_signal childev;
1292 1960
1293#ifndef WIFCONTINUED 1961#ifndef WIFCONTINUED
1294# define WIFCONTINUED(status) 0 1962# define WIFCONTINUED(status) 0
… …
1299child_reap (EV_P_ int chain, int pid, int status) 1967child_reap (EV_P_ int chain, int pid, int status)
1300{ 1968{
1301 ev_child *w; 1969 ev_child *w;
1302 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1970 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1303 1971
1304 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1972 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1305 { 1973 {
1306 if ((w->pid == pid || !w->pid) 1974 if ((w->pid == pid || !w->pid)
1307 && (!traced || (w->flags & 1))) 1975 && (!traced || (w->flags & 1)))
1308 { 1976 {
1309 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1977 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1334 /* make sure we are called again until all children have been reaped */ 2002 /* make sure we are called again until all children have been reaped */
1335 /* we need to do it this way so that the callback gets called before we continue */ 2003 /* we need to do it this way so that the callback gets called before we continue */
1336 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2004 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1337 2005
1338 child_reap (EV_A_ pid, pid, status); 2006 child_reap (EV_A_ pid, pid, status);
1339 if (EV_PID_HASHSIZE > 1) 2007 if ((EV_PID_HASHSIZE) > 1)
1340 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2008 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1341} 2009}
1342 2010
1343#endif 2011#endif
1344 2012
1345/*****************************************************************************/ 2013/*****************************************************************************/
1346 2014
2015#if EV_USE_IOCP
2016# include "ev_iocp.c"
2017#endif
1347#if EV_USE_PORT 2018#if EV_USE_PORT
1348# include "ev_port.c" 2019# include "ev_port.c"
1349#endif 2020#endif
1350#if EV_USE_KQUEUE 2021#if EV_USE_KQUEUE
1351# include "ev_kqueue.c" 2022# include "ev_kqueue.c"
… …
1358#endif 2029#endif
1359#if EV_USE_SELECT 2030#if EV_USE_SELECT
1360# include "ev_select.c" 2031# include "ev_select.c"
1361#endif 2032#endif
1362 2033
1363int 2034int ecb_cold
1364ev_version_major (void) 2035ev_version_major (void)
1365{ 2036{
1366 return EV_VERSION_MAJOR; 2037 return EV_VERSION_MAJOR;
1367} 2038}
1368 2039
1369int 2040int ecb_cold
1370ev_version_minor (void) 2041ev_version_minor (void)
1371{ 2042{
1372 return EV_VERSION_MINOR; 2043 return EV_VERSION_MINOR;
1373} 2044}
1374 2045
1375/* return true if we are running with elevated privileges and should ignore env variables */ 2046/* return true if we are running with elevated privileges and should ignore env variables */
1376int inline_size 2047int inline_size ecb_cold
1377enable_secure (void) 2048enable_secure (void)
1378{ 2049{
1379#ifdef _WIN32 2050#ifdef _WIN32
1380 return 0; 2051 return 0;
1381#else 2052#else
1382 return getuid () != geteuid () 2053 return getuid () != geteuid ()
1383 || getgid () != getegid (); 2054 || getgid () != getegid ();
1384#endif 2055#endif
1385} 2056}
1386 2057
1387unsigned int 2058unsigned int ecb_cold
1388ev_supported_backends (void) 2059ev_supported_backends (void)
1389{ 2060{
1390 unsigned int flags = 0; 2061 unsigned int flags = 0;
1391 2062
1392 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2063 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1396 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2067 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1397 2068
1398 return flags; 2069 return flags;
1399} 2070}
1400 2071
1401unsigned int 2072unsigned int ecb_cold
1402ev_recommended_backends (void) 2073ev_recommended_backends (void)
1403{ 2074{
1404 unsigned int flags = ev_supported_backends (); 2075 unsigned int flags = ev_supported_backends ();
1405 2076
1406#ifndef __NetBSD__ 2077#ifndef __NetBSD__
… …
1411#ifdef __APPLE__ 2082#ifdef __APPLE__
1412 /* only select works correctly on that "unix-certified" platform */ 2083 /* only select works correctly on that "unix-certified" platform */
1413 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2084 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1414 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2085 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1415#endif 2086#endif
2087#ifdef __FreeBSD__
2088 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2089#endif
1416 2090
1417 return flags; 2091 return flags;
1418} 2092}
1419 2093
1420unsigned int 2094unsigned int ecb_cold
1421ev_embeddable_backends (void) 2095ev_embeddable_backends (void)
1422{ 2096{
1423 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2097 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1424 2098
1425 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2099 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1426 /* please fix it and tell me how to detect the fix */ 2100 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1427 flags &= ~EVBACKEND_EPOLL; 2101 flags &= ~EVBACKEND_EPOLL;
1428 2102
1429 return flags; 2103 return flags;
1430} 2104}
1431 2105
1432unsigned int 2106unsigned int
1433ev_backend (EV_P) 2107ev_backend (EV_P)
1434{ 2108{
1435 return backend; 2109 return backend;
1436} 2110}
1437 2111
1438#if EV_MINIMAL < 2 2112#if EV_FEATURE_API
1439unsigned int 2113unsigned int
1440ev_loop_count (EV_P) 2114ev_iteration (EV_P)
1441{ 2115{
1442 return loop_count; 2116 return loop_count;
1443} 2117}
1444 2118
1445unsigned int 2119unsigned int
1446ev_loop_depth (EV_P) 2120ev_depth (EV_P)
1447{ 2121{
1448 return loop_depth; 2122 return loop_depth;
1449} 2123}
1450 2124
1451void 2125void
… …
1470ev_userdata (EV_P) 2144ev_userdata (EV_P)
1471{ 2145{
1472 return userdata; 2146 return userdata;
1473} 2147}
1474 2148
2149void
1475void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2150ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1476{ 2151{
1477 invoke_cb = invoke_pending_cb; 2152 invoke_cb = invoke_pending_cb;
1478} 2153}
1479 2154
2155void
1480void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2156ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1481{ 2157{
1482 release_cb = release; 2158 release_cb = release;
1483 acquire_cb = acquire; 2159 acquire_cb = acquire;
1484} 2160}
1485#endif 2161#endif
1486 2162
1487/* initialise a loop structure, must be zero-initialised */ 2163/* initialise a loop structure, must be zero-initialised */
1488static void noinline 2164static void noinline ecb_cold
1489loop_init (EV_P_ unsigned int flags) 2165loop_init (EV_P_ unsigned int flags)
1490{ 2166{
1491 if (!backend) 2167 if (!backend)
1492 { 2168 {
2169 origflags = flags;
2170
1493#if EV_USE_REALTIME 2171#if EV_USE_REALTIME
1494 if (!have_realtime) 2172 if (!have_realtime)
1495 { 2173 {
1496 struct timespec ts; 2174 struct timespec ts;
1497 2175
… …
1508 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2186 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1509 have_monotonic = 1; 2187 have_monotonic = 1;
1510 } 2188 }
1511#endif 2189#endif
1512 2190
1513 ev_rt_now = ev_time ();
1514 mn_now = get_clock ();
1515 now_floor = mn_now;
1516 rtmn_diff = ev_rt_now - mn_now;
1517#if EV_MINIMAL < 2
1518 invoke_cb = ev_invoke_pending;
1519#endif
1520
1521 io_blocktime = 0.;
1522 timeout_blocktime = 0.;
1523 backend = 0;
1524 backend_fd = -1;
1525 gotasync = 0;
1526#if EV_USE_INOTIFY
1527 fs_fd = -2;
1528#endif
1529#if EV_USE_SIGNALFD
1530 sigfd = -2;
1531#endif
1532
1533 /* pid check not overridable via env */ 2191 /* pid check not overridable via env */
1534#ifndef _WIN32 2192#ifndef _WIN32
1535 if (flags & EVFLAG_FORKCHECK) 2193 if (flags & EVFLAG_FORKCHECK)
1536 curpid = getpid (); 2194 curpid = getpid ();
1537#endif 2195#endif
… …
1539 if (!(flags & EVFLAG_NOENV) 2197 if (!(flags & EVFLAG_NOENV)
1540 && !enable_secure () 2198 && !enable_secure ()
1541 && getenv ("LIBEV_FLAGS")) 2199 && getenv ("LIBEV_FLAGS"))
1542 flags = atoi (getenv ("LIBEV_FLAGS")); 2200 flags = atoi (getenv ("LIBEV_FLAGS"));
1543 2201
1544 if (!(flags & 0x0000ffffU)) 2202 ev_rt_now = ev_time ();
2203 mn_now = get_clock ();
2204 now_floor = mn_now;
2205 rtmn_diff = ev_rt_now - mn_now;
2206#if EV_FEATURE_API
2207 invoke_cb = ev_invoke_pending;
2208#endif
2209
2210 io_blocktime = 0.;
2211 timeout_blocktime = 0.;
2212 backend = 0;
2213 backend_fd = -1;
2214 sig_pending = 0;
2215#if EV_ASYNC_ENABLE
2216 async_pending = 0;
2217#endif
2218 pipe_write_skipped = 0;
2219 pipe_write_wanted = 0;
2220#if EV_USE_INOTIFY
2221 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2222#endif
2223#if EV_USE_SIGNALFD
2224 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2225#endif
2226
2227 if (!(flags & EVBACKEND_MASK))
1545 flags |= ev_recommended_backends (); 2228 flags |= ev_recommended_backends ();
1546 2229
2230#if EV_USE_IOCP
2231 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2232#endif
1547#if EV_USE_PORT 2233#if EV_USE_PORT
1548 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2234 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1549#endif 2235#endif
1550#if EV_USE_KQUEUE 2236#if EV_USE_KQUEUE
1551 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2237 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1560 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2246 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1561#endif 2247#endif
1562 2248
1563 ev_prepare_init (&pending_w, pendingcb); 2249 ev_prepare_init (&pending_w, pendingcb);
1564 2250
2251#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1565 ev_init (&pipe_w, pipecb); 2252 ev_init (&pipe_w, pipecb);
1566 ev_set_priority (&pipe_w, EV_MAXPRI); 2253 ev_set_priority (&pipe_w, EV_MAXPRI);
2254#endif
1567 } 2255 }
1568} 2256}
1569 2257
1570/* free up a loop structure */ 2258/* free up a loop structure */
1571static void noinline 2259void ecb_cold
1572loop_destroy (EV_P) 2260ev_loop_destroy (EV_P)
1573{ 2261{
1574 int i; 2262 int i;
2263
2264#if EV_MULTIPLICITY
2265 /* mimic free (0) */
2266 if (!EV_A)
2267 return;
2268#endif
2269
2270#if EV_CLEANUP_ENABLE
2271 /* queue cleanup watchers (and execute them) */
2272 if (expect_false (cleanupcnt))
2273 {
2274 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2275 EV_INVOKE_PENDING;
2276 }
2277#endif
2278
2279#if EV_CHILD_ENABLE
2280 if (ev_is_active (&childev))
2281 {
2282 ev_ref (EV_A); /* child watcher */
2283 ev_signal_stop (EV_A_ &childev);
2284 }
2285#endif
1575 2286
1576 if (ev_is_active (&pipe_w)) 2287 if (ev_is_active (&pipe_w))
1577 { 2288 {
1578 /*ev_ref (EV_A);*/ 2289 /*ev_ref (EV_A);*/
1579 /*ev_io_stop (EV_A_ &pipe_w);*/ 2290 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1583 close (evfd); 2294 close (evfd);
1584#endif 2295#endif
1585 2296
1586 if (evpipe [0] >= 0) 2297 if (evpipe [0] >= 0)
1587 { 2298 {
1588 close (evpipe [0]); 2299 EV_WIN32_CLOSE_FD (evpipe [0]);
1589 close (evpipe [1]); 2300 EV_WIN32_CLOSE_FD (evpipe [1]);
1590 } 2301 }
1591 } 2302 }
1592 2303
1593#if EV_USE_SIGNALFD 2304#if EV_USE_SIGNALFD
1594 if (ev_is_active (&sigfd_w)) 2305 if (ev_is_active (&sigfd_w))
1595 {
1596 /*ev_ref (EV_A);*/
1597 /*ev_io_stop (EV_A_ &sigfd_w);*/
1598
1599 close (sigfd); 2306 close (sigfd);
1600 }
1601#endif 2307#endif
1602 2308
1603#if EV_USE_INOTIFY 2309#if EV_USE_INOTIFY
1604 if (fs_fd >= 0) 2310 if (fs_fd >= 0)
1605 close (fs_fd); 2311 close (fs_fd);
1606#endif 2312#endif
1607 2313
1608 if (backend_fd >= 0) 2314 if (backend_fd >= 0)
1609 close (backend_fd); 2315 close (backend_fd);
1610 2316
2317#if EV_USE_IOCP
2318 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2319#endif
1611#if EV_USE_PORT 2320#if EV_USE_PORT
1612 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2321 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1613#endif 2322#endif
1614#if EV_USE_KQUEUE 2323#if EV_USE_KQUEUE
1615 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2324 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1630#if EV_IDLE_ENABLE 2339#if EV_IDLE_ENABLE
1631 array_free (idle, [i]); 2340 array_free (idle, [i]);
1632#endif 2341#endif
1633 } 2342 }
1634 2343
1635 ev_free (anfds); anfdmax = 0; 2344 ev_free (anfds); anfds = 0; anfdmax = 0;
1636 2345
1637 /* have to use the microsoft-never-gets-it-right macro */ 2346 /* have to use the microsoft-never-gets-it-right macro */
1638 array_free (rfeed, EMPTY); 2347 array_free (rfeed, EMPTY);
1639 array_free (fdchange, EMPTY); 2348 array_free (fdchange, EMPTY);
1640 array_free (timer, EMPTY); 2349 array_free (timer, EMPTY);
… …
1642 array_free (periodic, EMPTY); 2351 array_free (periodic, EMPTY);
1643#endif 2352#endif
1644#if EV_FORK_ENABLE 2353#if EV_FORK_ENABLE
1645 array_free (fork, EMPTY); 2354 array_free (fork, EMPTY);
1646#endif 2355#endif
2356#if EV_CLEANUP_ENABLE
2357 array_free (cleanup, EMPTY);
2358#endif
1647 array_free (prepare, EMPTY); 2359 array_free (prepare, EMPTY);
1648 array_free (check, EMPTY); 2360 array_free (check, EMPTY);
1649#if EV_ASYNC_ENABLE 2361#if EV_ASYNC_ENABLE
1650 array_free (async, EMPTY); 2362 array_free (async, EMPTY);
1651#endif 2363#endif
1652 2364
1653 backend = 0; 2365 backend = 0;
2366
2367#if EV_MULTIPLICITY
2368 if (ev_is_default_loop (EV_A))
2369#endif
2370 ev_default_loop_ptr = 0;
2371#if EV_MULTIPLICITY
2372 else
2373 ev_free (EV_A);
2374#endif
1654} 2375}
1655 2376
1656#if EV_USE_INOTIFY 2377#if EV_USE_INOTIFY
1657inline_size void infy_fork (EV_P); 2378inline_size void infy_fork (EV_P);
1658#endif 2379#endif
… …
1673 infy_fork (EV_A); 2394 infy_fork (EV_A);
1674#endif 2395#endif
1675 2396
1676 if (ev_is_active (&pipe_w)) 2397 if (ev_is_active (&pipe_w))
1677 { 2398 {
1678 /* this "locks" the handlers against writing to the pipe */ 2399 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1679 /* while we modify the fd vars */
1680 gotsig = 1;
1681#if EV_ASYNC_ENABLE
1682 gotasync = 1;
1683#endif
1684 2400
1685 ev_ref (EV_A); 2401 ev_ref (EV_A);
1686 ev_io_stop (EV_A_ &pipe_w); 2402 ev_io_stop (EV_A_ &pipe_w);
1687 2403
1688#if EV_USE_EVENTFD 2404#if EV_USE_EVENTFD
… …
1690 close (evfd); 2406 close (evfd);
1691#endif 2407#endif
1692 2408
1693 if (evpipe [0] >= 0) 2409 if (evpipe [0] >= 0)
1694 { 2410 {
1695 close (evpipe [0]); 2411 EV_WIN32_CLOSE_FD (evpipe [0]);
1696 close (evpipe [1]); 2412 EV_WIN32_CLOSE_FD (evpipe [1]);
1697 } 2413 }
1698 2414
2415#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1699 evpipe_init (EV_A); 2416 evpipe_init (EV_A);
1700 /* now iterate over everything, in case we missed something */ 2417 /* now iterate over everything, in case we missed something */
1701 pipecb (EV_A_ &pipe_w, EV_READ); 2418 pipecb (EV_A_ &pipe_w, EV_READ);
2419#endif
1702 } 2420 }
1703 2421
1704 postfork = 0; 2422 postfork = 0;
1705} 2423}
1706 2424
1707#if EV_MULTIPLICITY 2425#if EV_MULTIPLICITY
1708 2426
1709struct ev_loop * 2427struct ev_loop * ecb_cold
1710ev_loop_new (unsigned int flags) 2428ev_loop_new (unsigned int flags)
1711{ 2429{
1712 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2430 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1713 2431
1714 memset (loop, 0, sizeof (struct ev_loop)); 2432 memset (EV_A, 0, sizeof (struct ev_loop));
1715 loop_init (EV_A_ flags); 2433 loop_init (EV_A_ flags);
1716 2434
1717 if (ev_backend (EV_A)) 2435 if (ev_backend (EV_A))
1718 return loop; 2436 return EV_A;
1719 2437
2438 ev_free (EV_A);
1720 return 0; 2439 return 0;
1721} 2440}
1722 2441
1723void
1724ev_loop_destroy (EV_P)
1725{
1726 loop_destroy (EV_A);
1727 ev_free (loop);
1728}
1729
1730void
1731ev_loop_fork (EV_P)
1732{
1733 postfork = 1; /* must be in line with ev_default_fork */
1734}
1735#endif /* multiplicity */ 2442#endif /* multiplicity */
1736 2443
1737#if EV_VERIFY 2444#if EV_VERIFY
1738static void noinline 2445static void noinline ecb_cold
1739verify_watcher (EV_P_ W w) 2446verify_watcher (EV_P_ W w)
1740{ 2447{
1741 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2448 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1742 2449
1743 if (w->pending) 2450 if (w->pending)
1744 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2451 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1745} 2452}
1746 2453
1747static void noinline 2454static void noinline ecb_cold
1748verify_heap (EV_P_ ANHE *heap, int N) 2455verify_heap (EV_P_ ANHE *heap, int N)
1749{ 2456{
1750 int i; 2457 int i;
1751 2458
1752 for (i = HEAP0; i < N + HEAP0; ++i) 2459 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1757 2464
1758 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2465 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1759 } 2466 }
1760} 2467}
1761 2468
1762static void noinline 2469static void noinline ecb_cold
1763array_verify (EV_P_ W *ws, int cnt) 2470array_verify (EV_P_ W *ws, int cnt)
1764{ 2471{
1765 while (cnt--) 2472 while (cnt--)
1766 { 2473 {
1767 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2474 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1768 verify_watcher (EV_A_ ws [cnt]); 2475 verify_watcher (EV_A_ ws [cnt]);
1769 } 2476 }
1770} 2477}
1771#endif 2478#endif
1772 2479
1773#if EV_MINIMAL < 2 2480#if EV_FEATURE_API
1774void 2481void ecb_cold
1775ev_loop_verify (EV_P) 2482ev_verify (EV_P)
1776{ 2483{
1777#if EV_VERIFY 2484#if EV_VERIFY
1778 int i; 2485 int i;
1779 WL w; 2486 WL w;
1780 2487
… …
1814#if EV_FORK_ENABLE 2521#if EV_FORK_ENABLE
1815 assert (forkmax >= forkcnt); 2522 assert (forkmax >= forkcnt);
1816 array_verify (EV_A_ (W *)forks, forkcnt); 2523 array_verify (EV_A_ (W *)forks, forkcnt);
1817#endif 2524#endif
1818 2525
2526#if EV_CLEANUP_ENABLE
2527 assert (cleanupmax >= cleanupcnt);
2528 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2529#endif
2530
1819#if EV_ASYNC_ENABLE 2531#if EV_ASYNC_ENABLE
1820 assert (asyncmax >= asynccnt); 2532 assert (asyncmax >= asynccnt);
1821 array_verify (EV_A_ (W *)asyncs, asynccnt); 2533 array_verify (EV_A_ (W *)asyncs, asynccnt);
1822#endif 2534#endif
1823 2535
2536#if EV_PREPARE_ENABLE
1824 assert (preparemax >= preparecnt); 2537 assert (preparemax >= preparecnt);
1825 array_verify (EV_A_ (W *)prepares, preparecnt); 2538 array_verify (EV_A_ (W *)prepares, preparecnt);
2539#endif
1826 2540
2541#if EV_CHECK_ENABLE
1827 assert (checkmax >= checkcnt); 2542 assert (checkmax >= checkcnt);
1828 array_verify (EV_A_ (W *)checks, checkcnt); 2543 array_verify (EV_A_ (W *)checks, checkcnt);
2544#endif
1829 2545
1830# if 0 2546# if 0
2547#if EV_CHILD_ENABLE
1831 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2548 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1832 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2549 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2550#endif
1833# endif 2551# endif
1834#endif 2552#endif
1835} 2553}
1836#endif 2554#endif
1837 2555
1838#if EV_MULTIPLICITY 2556#if EV_MULTIPLICITY
1839struct ev_loop * 2557struct ev_loop * ecb_cold
1840ev_default_loop_init (unsigned int flags)
1841#else 2558#else
1842int 2559int
2560#endif
1843ev_default_loop (unsigned int flags) 2561ev_default_loop (unsigned int flags)
1844#endif
1845{ 2562{
1846 if (!ev_default_loop_ptr) 2563 if (!ev_default_loop_ptr)
1847 { 2564 {
1848#if EV_MULTIPLICITY 2565#if EV_MULTIPLICITY
1849 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2566 EV_P = ev_default_loop_ptr = &default_loop_struct;
1850#else 2567#else
1851 ev_default_loop_ptr = 1; 2568 ev_default_loop_ptr = 1;
1852#endif 2569#endif
1853 2570
1854 loop_init (EV_A_ flags); 2571 loop_init (EV_A_ flags);
1855 2572
1856 if (ev_backend (EV_A)) 2573 if (ev_backend (EV_A))
1857 { 2574 {
1858#ifndef _WIN32 2575#if EV_CHILD_ENABLE
1859 ev_signal_init (&childev, childcb, SIGCHLD); 2576 ev_signal_init (&childev, childcb, SIGCHLD);
1860 ev_set_priority (&childev, EV_MAXPRI); 2577 ev_set_priority (&childev, EV_MAXPRI);
1861 ev_signal_start (EV_A_ &childev); 2578 ev_signal_start (EV_A_ &childev);
1862 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2579 ev_unref (EV_A); /* child watcher should not keep loop alive */
1863#endif 2580#endif
… …
1868 2585
1869 return ev_default_loop_ptr; 2586 return ev_default_loop_ptr;
1870} 2587}
1871 2588
1872void 2589void
1873ev_default_destroy (void) 2590ev_loop_fork (EV_P)
1874{ 2591{
1875#if EV_MULTIPLICITY
1876 struct ev_loop *loop = ev_default_loop_ptr;
1877#endif
1878
1879 ev_default_loop_ptr = 0;
1880
1881#ifndef _WIN32
1882 ev_ref (EV_A); /* child watcher */
1883 ev_signal_stop (EV_A_ &childev);
1884#endif
1885
1886 loop_destroy (EV_A);
1887}
1888
1889void
1890ev_default_fork (void)
1891{
1892#if EV_MULTIPLICITY
1893 struct ev_loop *loop = ev_default_loop_ptr;
1894#endif
1895
1896 postfork = 1; /* must be in line with ev_loop_fork */ 2592 postfork = 1; /* must be in line with ev_default_fork */
1897} 2593}
1898 2594
1899/*****************************************************************************/ 2595/*****************************************************************************/
1900 2596
1901void 2597void
… …
1923 2619
1924 for (pri = NUMPRI; pri--; ) 2620 for (pri = NUMPRI; pri--; )
1925 while (pendingcnt [pri]) 2621 while (pendingcnt [pri])
1926 { 2622 {
1927 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2623 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1928
1929 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1930 /* ^ this is no longer true, as pending_w could be here */
1931 2624
1932 p->w->pending = 0; 2625 p->w->pending = 0;
1933 EV_CB_INVOKE (p->w, p->events); 2626 EV_CB_INVOKE (p->w, p->events);
1934 EV_FREQUENT_CHECK; 2627 EV_FREQUENT_CHECK;
1935 } 2628 }
… …
1992 EV_FREQUENT_CHECK; 2685 EV_FREQUENT_CHECK;
1993 feed_reverse (EV_A_ (W)w); 2686 feed_reverse (EV_A_ (W)w);
1994 } 2687 }
1995 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2688 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1996 2689
1997 feed_reverse_done (EV_A_ EV_TIMEOUT); 2690 feed_reverse_done (EV_A_ EV_TIMER);
1998 } 2691 }
1999} 2692}
2000 2693
2001#if EV_PERIODIC_ENABLE 2694#if EV_PERIODIC_ENABLE
2695
2696static void noinline
2697periodic_recalc (EV_P_ ev_periodic *w)
2698{
2699 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2700 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2701
2702 /* the above almost always errs on the low side */
2703 while (at <= ev_rt_now)
2704 {
2705 ev_tstamp nat = at + w->interval;
2706
2707 /* when resolution fails us, we use ev_rt_now */
2708 if (expect_false (nat == at))
2709 {
2710 at = ev_rt_now;
2711 break;
2712 }
2713
2714 at = nat;
2715 }
2716
2717 ev_at (w) = at;
2718}
2719
2002/* make periodics pending */ 2720/* make periodics pending */
2003inline_size void 2721inline_size void
2004periodics_reify (EV_P) 2722periodics_reify (EV_P)
2005{ 2723{
2006 EV_FREQUENT_CHECK; 2724 EV_FREQUENT_CHECK;
… …
2025 ANHE_at_cache (periodics [HEAP0]); 2743 ANHE_at_cache (periodics [HEAP0]);
2026 downheap (periodics, periodiccnt, HEAP0); 2744 downheap (periodics, periodiccnt, HEAP0);
2027 } 2745 }
2028 else if (w->interval) 2746 else if (w->interval)
2029 { 2747 {
2030 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2748 periodic_recalc (EV_A_ w);
2031 /* if next trigger time is not sufficiently in the future, put it there */
2032 /* this might happen because of floating point inexactness */
2033 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2034 {
2035 ev_at (w) += w->interval;
2036
2037 /* if interval is unreasonably low we might still have a time in the past */
2038 /* so correct this. this will make the periodic very inexact, but the user */
2039 /* has effectively asked to get triggered more often than possible */
2040 if (ev_at (w) < ev_rt_now)
2041 ev_at (w) = ev_rt_now;
2042 }
2043
2044 ANHE_at_cache (periodics [HEAP0]); 2749 ANHE_at_cache (periodics [HEAP0]);
2045 downheap (periodics, periodiccnt, HEAP0); 2750 downheap (periodics, periodiccnt, HEAP0);
2046 } 2751 }
2047 else 2752 else
2048 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2753 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2055 feed_reverse_done (EV_A_ EV_PERIODIC); 2760 feed_reverse_done (EV_A_ EV_PERIODIC);
2056 } 2761 }
2057} 2762}
2058 2763
2059/* simply recalculate all periodics */ 2764/* simply recalculate all periodics */
2060/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2765/* TODO: maybe ensure that at least one event happens when jumping forward? */
2061static void noinline 2766static void noinline ecb_cold
2062periodics_reschedule (EV_P) 2767periodics_reschedule (EV_P)
2063{ 2768{
2064 int i; 2769 int i;
2065 2770
2066 /* adjust periodics after time jump */ 2771 /* adjust periodics after time jump */
… …
2069 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2774 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2070 2775
2071 if (w->reschedule_cb) 2776 if (w->reschedule_cb)
2072 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2777 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2073 else if (w->interval) 2778 else if (w->interval)
2074 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2779 periodic_recalc (EV_A_ w);
2075 2780
2076 ANHE_at_cache (periodics [i]); 2781 ANHE_at_cache (periodics [i]);
2077 } 2782 }
2078 2783
2079 reheap (periodics, periodiccnt); 2784 reheap (periodics, periodiccnt);
2080} 2785}
2081#endif 2786#endif
2082 2787
2083/* adjust all timers by a given offset */ 2788/* adjust all timers by a given offset */
2084static void noinline 2789static void noinline ecb_cold
2085timers_reschedule (EV_P_ ev_tstamp adjust) 2790timers_reschedule (EV_P_ ev_tstamp adjust)
2086{ 2791{
2087 int i; 2792 int i;
2088 2793
2089 for (i = 0; i < timercnt; ++i) 2794 for (i = 0; i < timercnt; ++i)
… …
2093 ANHE_at_cache (*he); 2798 ANHE_at_cache (*he);
2094 } 2799 }
2095} 2800}
2096 2801
2097/* fetch new monotonic and realtime times from the kernel */ 2802/* fetch new monotonic and realtime times from the kernel */
2098/* also detetc if there was a timejump, and act accordingly */ 2803/* also detect if there was a timejump, and act accordingly */
2099inline_speed void 2804inline_speed void
2100time_update (EV_P_ ev_tstamp max_block) 2805time_update (EV_P_ ev_tstamp max_block)
2101{ 2806{
2102#if EV_USE_MONOTONIC 2807#if EV_USE_MONOTONIC
2103 if (expect_true (have_monotonic)) 2808 if (expect_true (have_monotonic))
… …
2126 * doesn't hurt either as we only do this on time-jumps or 2831 * doesn't hurt either as we only do this on time-jumps or
2127 * in the unlikely event of having been preempted here. 2832 * in the unlikely event of having been preempted here.
2128 */ 2833 */
2129 for (i = 4; --i; ) 2834 for (i = 4; --i; )
2130 { 2835 {
2836 ev_tstamp diff;
2131 rtmn_diff = ev_rt_now - mn_now; 2837 rtmn_diff = ev_rt_now - mn_now;
2132 2838
2839 diff = odiff - rtmn_diff;
2840
2133 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2841 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2134 return; /* all is well */ 2842 return; /* all is well */
2135 2843
2136 ev_rt_now = ev_time (); 2844 ev_rt_now = ev_time ();
2137 mn_now = get_clock (); 2845 mn_now = get_clock ();
2138 now_floor = mn_now; 2846 now_floor = mn_now;
… …
2161 mn_now = ev_rt_now; 2869 mn_now = ev_rt_now;
2162 } 2870 }
2163} 2871}
2164 2872
2165void 2873void
2166ev_loop (EV_P_ int flags) 2874ev_run (EV_P_ int flags)
2167{ 2875{
2168#if EV_MINIMAL < 2 2876#if EV_FEATURE_API
2169 ++loop_depth; 2877 ++loop_depth;
2170#endif 2878#endif
2171 2879
2172 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2880 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2173 2881
2174 loop_done = EVUNLOOP_CANCEL; 2882 loop_done = EVBREAK_CANCEL;
2175 2883
2176 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2884 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2177 2885
2178 do 2886 do
2179 { 2887 {
2180#if EV_VERIFY >= 2 2888#if EV_VERIFY >= 2
2181 ev_loop_verify (EV_A); 2889 ev_verify (EV_A);
2182#endif 2890#endif
2183 2891
2184#ifndef _WIN32 2892#ifndef _WIN32
2185 if (expect_false (curpid)) /* penalise the forking check even more */ 2893 if (expect_false (curpid)) /* penalise the forking check even more */
2186 if (expect_false (getpid () != curpid)) 2894 if (expect_false (getpid () != curpid))
… …
2198 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2906 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2199 EV_INVOKE_PENDING; 2907 EV_INVOKE_PENDING;
2200 } 2908 }
2201#endif 2909#endif
2202 2910
2911#if EV_PREPARE_ENABLE
2203 /* queue prepare watchers (and execute them) */ 2912 /* queue prepare watchers (and execute them) */
2204 if (expect_false (preparecnt)) 2913 if (expect_false (preparecnt))
2205 { 2914 {
2206 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2915 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2207 EV_INVOKE_PENDING; 2916 EV_INVOKE_PENDING;
2208 } 2917 }
2918#endif
2209 2919
2210 if (expect_false (loop_done)) 2920 if (expect_false (loop_done))
2211 break; 2921 break;
2212 2922
2213 /* we might have forked, so reify kernel state if necessary */ 2923 /* we might have forked, so reify kernel state if necessary */
… …
2220 /* calculate blocking time */ 2930 /* calculate blocking time */
2221 { 2931 {
2222 ev_tstamp waittime = 0.; 2932 ev_tstamp waittime = 0.;
2223 ev_tstamp sleeptime = 0.; 2933 ev_tstamp sleeptime = 0.;
2224 2934
2935 /* remember old timestamp for io_blocktime calculation */
2936 ev_tstamp prev_mn_now = mn_now;
2937
2938 /* update time to cancel out callback processing overhead */
2939 time_update (EV_A_ 1e100);
2940
2941 /* from now on, we want a pipe-wake-up */
2942 pipe_write_wanted = 1;
2943
2944 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2945
2225 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2946 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2226 { 2947 {
2227 /* remember old timestamp for io_blocktime calculation */
2228 ev_tstamp prev_mn_now = mn_now;
2229
2230 /* update time to cancel out callback processing overhead */
2231 time_update (EV_A_ 1e100);
2232
2233 waittime = MAX_BLOCKTIME; 2948 waittime = MAX_BLOCKTIME;
2234 2949
2235 if (timercnt) 2950 if (timercnt)
2236 { 2951 {
2237 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2952 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2238 if (waittime > to) waittime = to; 2953 if (waittime > to) waittime = to;
2239 } 2954 }
2240 2955
2241#if EV_PERIODIC_ENABLE 2956#if EV_PERIODIC_ENABLE
2242 if (periodiccnt) 2957 if (periodiccnt)
2243 { 2958 {
2244 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2959 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2245 if (waittime > to) waittime = to; 2960 if (waittime > to) waittime = to;
2246 } 2961 }
2247#endif 2962#endif
2248 2963
2249 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2964 /* don't let timeouts decrease the waittime below timeout_blocktime */
2250 if (expect_false (waittime < timeout_blocktime)) 2965 if (expect_false (waittime < timeout_blocktime))
2251 waittime = timeout_blocktime; 2966 waittime = timeout_blocktime;
2967
2968 /* at this point, we NEED to wait, so we have to ensure */
2969 /* to pass a minimum nonzero value to the backend */
2970 if (expect_false (waittime < backend_mintime))
2971 waittime = backend_mintime;
2252 2972
2253 /* extra check because io_blocktime is commonly 0 */ 2973 /* extra check because io_blocktime is commonly 0 */
2254 if (expect_false (io_blocktime)) 2974 if (expect_false (io_blocktime))
2255 { 2975 {
2256 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2976 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2257 2977
2258 if (sleeptime > waittime - backend_fudge) 2978 if (sleeptime > waittime - backend_mintime)
2259 sleeptime = waittime - backend_fudge; 2979 sleeptime = waittime - backend_mintime;
2260 2980
2261 if (expect_true (sleeptime > 0.)) 2981 if (expect_true (sleeptime > 0.))
2262 { 2982 {
2263 ev_sleep (sleeptime); 2983 ev_sleep (sleeptime);
2264 waittime -= sleeptime; 2984 waittime -= sleeptime;
2265 } 2985 }
2266 } 2986 }
2267 } 2987 }
2268 2988
2269#if EV_MINIMAL < 2 2989#if EV_FEATURE_API
2270 ++loop_count; 2990 ++loop_count;
2271#endif 2991#endif
2272 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2992 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2273 backend_poll (EV_A_ waittime); 2993 backend_poll (EV_A_ waittime);
2274 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2994 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2995
2996 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2997
2998 if (pipe_write_skipped)
2999 {
3000 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3001 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3002 }
3003
2275 3004
2276 /* update ev_rt_now, do magic */ 3005 /* update ev_rt_now, do magic */
2277 time_update (EV_A_ waittime + sleeptime); 3006 time_update (EV_A_ waittime + sleeptime);
2278 } 3007 }
2279 3008
… …
2286#if EV_IDLE_ENABLE 3015#if EV_IDLE_ENABLE
2287 /* queue idle watchers unless other events are pending */ 3016 /* queue idle watchers unless other events are pending */
2288 idle_reify (EV_A); 3017 idle_reify (EV_A);
2289#endif 3018#endif
2290 3019
3020#if EV_CHECK_ENABLE
2291 /* queue check watchers, to be executed first */ 3021 /* queue check watchers, to be executed first */
2292 if (expect_false (checkcnt)) 3022 if (expect_false (checkcnt))
2293 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3023 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3024#endif
2294 3025
2295 EV_INVOKE_PENDING; 3026 EV_INVOKE_PENDING;
2296 } 3027 }
2297 while (expect_true ( 3028 while (expect_true (
2298 activecnt 3029 activecnt
2299 && !loop_done 3030 && !loop_done
2300 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3031 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2301 )); 3032 ));
2302 3033
2303 if (loop_done == EVUNLOOP_ONE) 3034 if (loop_done == EVBREAK_ONE)
2304 loop_done = EVUNLOOP_CANCEL; 3035 loop_done = EVBREAK_CANCEL;
2305 3036
2306#if EV_MINIMAL < 2 3037#if EV_FEATURE_API
2307 --loop_depth; 3038 --loop_depth;
2308#endif 3039#endif
2309} 3040}
2310 3041
2311void 3042void
2312ev_unloop (EV_P_ int how) 3043ev_break (EV_P_ int how)
2313{ 3044{
2314 loop_done = how; 3045 loop_done = how;
2315} 3046}
2316 3047
2317void 3048void
… …
2364inline_size void 3095inline_size void
2365wlist_del (WL *head, WL elem) 3096wlist_del (WL *head, WL elem)
2366{ 3097{
2367 while (*head) 3098 while (*head)
2368 { 3099 {
2369 if (*head == elem) 3100 if (expect_true (*head == elem))
2370 { 3101 {
2371 *head = elem->next; 3102 *head = elem->next;
2372 return; 3103 break;
2373 } 3104 }
2374 3105
2375 head = &(*head)->next; 3106 head = &(*head)->next;
2376 } 3107 }
2377} 3108}
… …
2437 3168
2438 if (expect_false (ev_is_active (w))) 3169 if (expect_false (ev_is_active (w)))
2439 return; 3170 return;
2440 3171
2441 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3172 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2442 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3173 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2443 3174
2444 EV_FREQUENT_CHECK; 3175 EV_FREQUENT_CHECK;
2445 3176
2446 ev_start (EV_A_ (W)w, 1); 3177 ev_start (EV_A_ (W)w, 1);
2447 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3178 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2465 EV_FREQUENT_CHECK; 3196 EV_FREQUENT_CHECK;
2466 3197
2467 wlist_del (&anfds[w->fd].head, (WL)w); 3198 wlist_del (&anfds[w->fd].head, (WL)w);
2468 ev_stop (EV_A_ (W)w); 3199 ev_stop (EV_A_ (W)w);
2469 3200
2470 fd_change (EV_A_ w->fd, 1); 3201 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2471 3202
2472 EV_FREQUENT_CHECK; 3203 EV_FREQUENT_CHECK;
2473} 3204}
2474 3205
2475void noinline 3206void noinline
… …
2517 timers [active] = timers [timercnt + HEAP0]; 3248 timers [active] = timers [timercnt + HEAP0];
2518 adjustheap (timers, timercnt, active); 3249 adjustheap (timers, timercnt, active);
2519 } 3250 }
2520 } 3251 }
2521 3252
2522 EV_FREQUENT_CHECK;
2523
2524 ev_at (w) -= mn_now; 3253 ev_at (w) -= mn_now;
2525 3254
2526 ev_stop (EV_A_ (W)w); 3255 ev_stop (EV_A_ (W)w);
3256
3257 EV_FREQUENT_CHECK;
2527} 3258}
2528 3259
2529void noinline 3260void noinline
2530ev_timer_again (EV_P_ ev_timer *w) 3261ev_timer_again (EV_P_ ev_timer *w)
2531{ 3262{
… …
2567 if (w->reschedule_cb) 3298 if (w->reschedule_cb)
2568 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3299 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2569 else if (w->interval) 3300 else if (w->interval)
2570 { 3301 {
2571 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3302 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2572 /* this formula differs from the one in periodic_reify because we do not always round up */ 3303 periodic_recalc (EV_A_ w);
2573 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2574 } 3304 }
2575 else 3305 else
2576 ev_at (w) = w->offset; 3306 ev_at (w) = w->offset;
2577 3307
2578 EV_FREQUENT_CHECK; 3308 EV_FREQUENT_CHECK;
… …
2610 periodics [active] = periodics [periodiccnt + HEAP0]; 3340 periodics [active] = periodics [periodiccnt + HEAP0];
2611 adjustheap (periodics, periodiccnt, active); 3341 adjustheap (periodics, periodiccnt, active);
2612 } 3342 }
2613 } 3343 }
2614 3344
2615 EV_FREQUENT_CHECK;
2616
2617 ev_stop (EV_A_ (W)w); 3345 ev_stop (EV_A_ (W)w);
3346
3347 EV_FREQUENT_CHECK;
2618} 3348}
2619 3349
2620void noinline 3350void noinline
2621ev_periodic_again (EV_P_ ev_periodic *w) 3351ev_periodic_again (EV_P_ ev_periodic *w)
2622{ 3352{
… …
2628 3358
2629#ifndef SA_RESTART 3359#ifndef SA_RESTART
2630# define SA_RESTART 0 3360# define SA_RESTART 0
2631#endif 3361#endif
2632 3362
3363#if EV_SIGNAL_ENABLE
3364
2633void noinline 3365void noinline
2634ev_signal_start (EV_P_ ev_signal *w) 3366ev_signal_start (EV_P_ ev_signal *w)
2635{ 3367{
2636#if EV_MULTIPLICITY
2637 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2638#endif
2639 if (expect_false (ev_is_active (w))) 3368 if (expect_false (ev_is_active (w)))
2640 return; 3369 return;
2641 3370
2642 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3371 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3372
3373#if EV_MULTIPLICITY
3374 assert (("libev: a signal must not be attached to two different loops",
3375 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3376
3377 signals [w->signum - 1].loop = EV_A;
3378#endif
2643 3379
2644 EV_FREQUENT_CHECK; 3380 EV_FREQUENT_CHECK;
2645 3381
2646#if EV_USE_SIGNALFD 3382#if EV_USE_SIGNALFD
2647 if (sigfd == -2) 3383 if (sigfd == -2)
… …
2669 sigaddset (&sigfd_set, w->signum); 3405 sigaddset (&sigfd_set, w->signum);
2670 sigprocmask (SIG_BLOCK, &sigfd_set, 0); 3406 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2671 3407
2672 signalfd (sigfd, &sigfd_set, 0); 3408 signalfd (sigfd, &sigfd_set, 0);
2673 } 3409 }
2674 else
2675#endif 3410#endif
2676 evpipe_init (EV_A);
2677
2678 {
2679#ifndef _WIN32
2680 sigset_t full, prev;
2681 sigfillset (&full);
2682 sigprocmask (SIG_SETMASK, &full, &prev);
2683#endif
2684
2685 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2686
2687#ifndef _WIN32
2688 if (sigfd < 0)/*TODO*/
2689 sigdelset (&prev, w->signum);
2690 sigprocmask (SIG_SETMASK, &prev, 0);
2691#endif
2692 }
2693 3411
2694 ev_start (EV_A_ (W)w, 1); 3412 ev_start (EV_A_ (W)w, 1);
2695 wlist_add (&signals [w->signum - 1].head, (WL)w); 3413 wlist_add (&signals [w->signum - 1].head, (WL)w);
2696 3414
2697 if (!((WL)w)->next) 3415 if (!((WL)w)->next)
3416# if EV_USE_SIGNALFD
3417 if (sigfd < 0) /*TODO*/
3418# endif
2698 { 3419 {
2699#if _WIN32 3420# ifdef _WIN32
3421 evpipe_init (EV_A);
3422
2700 signal (w->signum, ev_sighandler); 3423 signal (w->signum, ev_sighandler);
2701#else 3424# else
2702 if (sigfd < 0) /*TODO*/
2703 {
2704 struct sigaction sa = { }; 3425 struct sigaction sa;
3426
3427 evpipe_init (EV_A);
3428
2705 sa.sa_handler = ev_sighandler; 3429 sa.sa_handler = ev_sighandler;
2706 sigfillset (&sa.sa_mask); 3430 sigfillset (&sa.sa_mask);
2707 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3431 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2708 sigaction (w->signum, &sa, 0); 3432 sigaction (w->signum, &sa, 0);
3433
3434 if (origflags & EVFLAG_NOSIGMASK)
3435 {
3436 sigemptyset (&sa.sa_mask);
3437 sigaddset (&sa.sa_mask, w->signum);
3438 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2709 } 3439 }
2710#endif 3440#endif
2711 } 3441 }
2712 3442
2713 EV_FREQUENT_CHECK; 3443 EV_FREQUENT_CHECK;
2714} 3444}
2715 3445
2716void noinline 3446void noinline
… …
2724 3454
2725 wlist_del (&signals [w->signum - 1].head, (WL)w); 3455 wlist_del (&signals [w->signum - 1].head, (WL)w);
2726 ev_stop (EV_A_ (W)w); 3456 ev_stop (EV_A_ (W)w);
2727 3457
2728 if (!signals [w->signum - 1].head) 3458 if (!signals [w->signum - 1].head)
3459 {
3460#if EV_MULTIPLICITY
3461 signals [w->signum - 1].loop = 0; /* unattach from signal */
3462#endif
2729#if EV_USE_SIGNALFD 3463#if EV_USE_SIGNALFD
2730 if (sigfd >= 0) 3464 if (sigfd >= 0)
2731 { 3465 {
2732 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3466 sigset_t ss;
3467
3468 sigemptyset (&ss);
3469 sigaddset (&ss, w->signum);
2733 sigdelset (&sigfd_set, w->signum); 3470 sigdelset (&sigfd_set, w->signum);
3471
2734 signalfd (sigfd, &sigfd_set, 0); 3472 signalfd (sigfd, &sigfd_set, 0);
2735 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3473 sigprocmask (SIG_UNBLOCK, &ss, 0);
2736 /*TODO: maybe unblock signal? */
2737 } 3474 }
2738 else 3475 else
2739#endif 3476#endif
2740 signal (w->signum, SIG_DFL); 3477 signal (w->signum, SIG_DFL);
3478 }
2741 3479
2742 EV_FREQUENT_CHECK; 3480 EV_FREQUENT_CHECK;
2743} 3481}
3482
3483#endif
3484
3485#if EV_CHILD_ENABLE
2744 3486
2745void 3487void
2746ev_child_start (EV_P_ ev_child *w) 3488ev_child_start (EV_P_ ev_child *w)
2747{ 3489{
2748#if EV_MULTIPLICITY 3490#if EV_MULTIPLICITY
… …
2752 return; 3494 return;
2753 3495
2754 EV_FREQUENT_CHECK; 3496 EV_FREQUENT_CHECK;
2755 3497
2756 ev_start (EV_A_ (W)w, 1); 3498 ev_start (EV_A_ (W)w, 1);
2757 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3499 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2758 3500
2759 EV_FREQUENT_CHECK; 3501 EV_FREQUENT_CHECK;
2760} 3502}
2761 3503
2762void 3504void
… …
2766 if (expect_false (!ev_is_active (w))) 3508 if (expect_false (!ev_is_active (w)))
2767 return; 3509 return;
2768 3510
2769 EV_FREQUENT_CHECK; 3511 EV_FREQUENT_CHECK;
2770 3512
2771 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3513 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2772 ev_stop (EV_A_ (W)w); 3514 ev_stop (EV_A_ (W)w);
2773 3515
2774 EV_FREQUENT_CHECK; 3516 EV_FREQUENT_CHECK;
2775} 3517}
3518
3519#endif
2776 3520
2777#if EV_STAT_ENABLE 3521#if EV_STAT_ENABLE
2778 3522
2779# ifdef _WIN32 3523# ifdef _WIN32
2780# undef lstat 3524# undef lstat
… …
2786#define MIN_STAT_INTERVAL 0.1074891 3530#define MIN_STAT_INTERVAL 0.1074891
2787 3531
2788static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3532static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2789 3533
2790#if EV_USE_INOTIFY 3534#if EV_USE_INOTIFY
2791# define EV_INOTIFY_BUFSIZE 8192 3535
3536/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3537# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2792 3538
2793static void noinline 3539static void noinline
2794infy_add (EV_P_ ev_stat *w) 3540infy_add (EV_P_ ev_stat *w)
2795{ 3541{
2796 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); 3542 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);
2797 3543
2798 if (w->wd < 0) 3544 if (w->wd >= 0)
3545 {
3546 struct statfs sfs;
3547
3548 /* now local changes will be tracked by inotify, but remote changes won't */
3549 /* unless the filesystem is known to be local, we therefore still poll */
3550 /* also do poll on <2.6.25, but with normal frequency */
3551
3552 if (!fs_2625)
3553 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3554 else if (!statfs (w->path, &sfs)
3555 && (sfs.f_type == 0x1373 /* devfs */
3556 || sfs.f_type == 0xEF53 /* ext2/3 */
3557 || sfs.f_type == 0x3153464a /* jfs */
3558 || sfs.f_type == 0x52654973 /* reiser3 */
3559 || sfs.f_type == 0x01021994 /* tempfs */
3560 || sfs.f_type == 0x58465342 /* xfs */))
3561 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3562 else
3563 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2799 { 3564 }
3565 else
3566 {
3567 /* can't use inotify, continue to stat */
2800 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3568 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2801 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2802 3569
2803 /* monitor some parent directory for speedup hints */ 3570 /* if path is not there, monitor some parent directory for speedup hints */
2804 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3571 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2805 /* but an efficiency issue only */ 3572 /* but an efficiency issue only */
2806 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3573 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2807 { 3574 {
2808 char path [4096]; 3575 char path [4096];
… …
2818 if (!pend || pend == path) 3585 if (!pend || pend == path)
2819 break; 3586 break;
2820 3587
2821 *pend = 0; 3588 *pend = 0;
2822 w->wd = inotify_add_watch (fs_fd, path, mask); 3589 w->wd = inotify_add_watch (fs_fd, path, mask);
2823 } 3590 }
2824 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3591 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2825 } 3592 }
2826 } 3593 }
2827 3594
2828 if (w->wd >= 0) 3595 if (w->wd >= 0)
2829 {
2830 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3596 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2831 3597
2832 /* now local changes will be tracked by inotify, but remote changes won't */ 3598 /* now re-arm timer, if required */
2833 /* unless the filesystem it known to be local, we therefore still poll */ 3599 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2834 /* also do poll on <2.6.25, but with normal frequency */
2835 struct statfs sfs;
2836
2837 if (fs_2625 && !statfs (w->path, &sfs))
2838 if (sfs.f_type == 0x1373 /* devfs */
2839 || sfs.f_type == 0xEF53 /* ext2/3 */
2840 || sfs.f_type == 0x3153464a /* jfs */
2841 || sfs.f_type == 0x52654973 /* reiser3 */
2842 || sfs.f_type == 0x01021994 /* tempfs */
2843 || sfs.f_type == 0x58465342 /* xfs */)
2844 return;
2845
2846 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2847 ev_timer_again (EV_A_ &w->timer); 3600 ev_timer_again (EV_A_ &w->timer);
2848 } 3601 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2849} 3602}
2850 3603
2851static void noinline 3604static void noinline
2852infy_del (EV_P_ ev_stat *w) 3605infy_del (EV_P_ ev_stat *w)
2853{ 3606{
… …
2856 3609
2857 if (wd < 0) 3610 if (wd < 0)
2858 return; 3611 return;
2859 3612
2860 w->wd = -2; 3613 w->wd = -2;
2861 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3614 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2862 wlist_del (&fs_hash [slot].head, (WL)w); 3615 wlist_del (&fs_hash [slot].head, (WL)w);
2863 3616
2864 /* remove this watcher, if others are watching it, they will rearm */ 3617 /* remove this watcher, if others are watching it, they will rearm */
2865 inotify_rm_watch (fs_fd, wd); 3618 inotify_rm_watch (fs_fd, wd);
2866} 3619}
… …
2868static void noinline 3621static void noinline
2869infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3622infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2870{ 3623{
2871 if (slot < 0) 3624 if (slot < 0)
2872 /* overflow, need to check for all hash slots */ 3625 /* overflow, need to check for all hash slots */
2873 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3626 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2874 infy_wd (EV_A_ slot, wd, ev); 3627 infy_wd (EV_A_ slot, wd, ev);
2875 else 3628 else
2876 { 3629 {
2877 WL w_; 3630 WL w_;
2878 3631
2879 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3632 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2880 { 3633 {
2881 ev_stat *w = (ev_stat *)w_; 3634 ev_stat *w = (ev_stat *)w_;
2882 w_ = w_->next; /* lets us remove this watcher and all before it */ 3635 w_ = w_->next; /* lets us remove this watcher and all before it */
2883 3636
2884 if (w->wd == wd || wd == -1) 3637 if (w->wd == wd || wd == -1)
2885 { 3638 {
2886 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3639 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2887 { 3640 {
2888 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3641 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2889 w->wd = -1; 3642 w->wd = -1;
2890 infy_add (EV_A_ w); /* re-add, no matter what */ 3643 infy_add (EV_A_ w); /* re-add, no matter what */
2891 } 3644 }
2892 3645
2893 stat_timer_cb (EV_A_ &w->timer, 0); 3646 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2898 3651
2899static void 3652static void
2900infy_cb (EV_P_ ev_io *w, int revents) 3653infy_cb (EV_P_ ev_io *w, int revents)
2901{ 3654{
2902 char buf [EV_INOTIFY_BUFSIZE]; 3655 char buf [EV_INOTIFY_BUFSIZE];
2903 struct inotify_event *ev = (struct inotify_event *)buf;
2904 int ofs; 3656 int ofs;
2905 int len = read (fs_fd, buf, sizeof (buf)); 3657 int len = read (fs_fd, buf, sizeof (buf));
2906 3658
2907 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3659 for (ofs = 0; ofs < len; )
3660 {
3661 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2908 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3662 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3663 ofs += sizeof (struct inotify_event) + ev->len;
3664 }
2909} 3665}
2910 3666
2911inline_size void 3667inline_size void ecb_cold
2912check_2625 (EV_P) 3668ev_check_2625 (EV_P)
2913{ 3669{
2914 /* kernels < 2.6.25 are borked 3670 /* kernels < 2.6.25 are borked
2915 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3671 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2916 */ 3672 */
2917 struct utsname buf; 3673 if (ev_linux_version () < 0x020619)
2918 int major, minor, micro;
2919
2920 if (uname (&buf))
2921 return; 3674 return;
2922 3675
2923 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2924 return;
2925
2926 if (major < 2
2927 || (major == 2 && minor < 6)
2928 || (major == 2 && minor == 6 && micro < 25))
2929 return;
2930
2931 fs_2625 = 1; 3676 fs_2625 = 1;
3677}
3678
3679inline_size int
3680infy_newfd (void)
3681{
3682#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3683 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3684 if (fd >= 0)
3685 return fd;
3686#endif
3687 return inotify_init ();
2932} 3688}
2933 3689
2934inline_size void 3690inline_size void
2935infy_init (EV_P) 3691infy_init (EV_P)
2936{ 3692{
2937 if (fs_fd != -2) 3693 if (fs_fd != -2)
2938 return; 3694 return;
2939 3695
2940 fs_fd = -1; 3696 fs_fd = -1;
2941 3697
2942 check_2625 (EV_A); 3698 ev_check_2625 (EV_A);
2943 3699
2944 fs_fd = inotify_init (); 3700 fs_fd = infy_newfd ();
2945 3701
2946 if (fs_fd >= 0) 3702 if (fs_fd >= 0)
2947 { 3703 {
3704 fd_intern (fs_fd);
2948 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3705 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2949 ev_set_priority (&fs_w, EV_MAXPRI); 3706 ev_set_priority (&fs_w, EV_MAXPRI);
2950 ev_io_start (EV_A_ &fs_w); 3707 ev_io_start (EV_A_ &fs_w);
3708 ev_unref (EV_A);
2951 } 3709 }
2952} 3710}
2953 3711
2954inline_size void 3712inline_size void
2955infy_fork (EV_P) 3713infy_fork (EV_P)
… …
2957 int slot; 3715 int slot;
2958 3716
2959 if (fs_fd < 0) 3717 if (fs_fd < 0)
2960 return; 3718 return;
2961 3719
3720 ev_ref (EV_A);
3721 ev_io_stop (EV_A_ &fs_w);
2962 close (fs_fd); 3722 close (fs_fd);
2963 fs_fd = inotify_init (); 3723 fs_fd = infy_newfd ();
2964 3724
3725 if (fs_fd >= 0)
3726 {
3727 fd_intern (fs_fd);
3728 ev_io_set (&fs_w, fs_fd, EV_READ);
3729 ev_io_start (EV_A_ &fs_w);
3730 ev_unref (EV_A);
3731 }
3732
2965 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3733 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2966 { 3734 {
2967 WL w_ = fs_hash [slot].head; 3735 WL w_ = fs_hash [slot].head;
2968 fs_hash [slot].head = 0; 3736 fs_hash [slot].head = 0;
2969 3737
2970 while (w_) 3738 while (w_)
… …
2975 w->wd = -1; 3743 w->wd = -1;
2976 3744
2977 if (fs_fd >= 0) 3745 if (fs_fd >= 0)
2978 infy_add (EV_A_ w); /* re-add, no matter what */ 3746 infy_add (EV_A_ w); /* re-add, no matter what */
2979 else 3747 else
3748 {
3749 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3750 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2980 ev_timer_again (EV_A_ &w->timer); 3751 ev_timer_again (EV_A_ &w->timer);
3752 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3753 }
2981 } 3754 }
2982 } 3755 }
2983} 3756}
2984 3757
2985#endif 3758#endif
… …
3002static void noinline 3775static void noinline
3003stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3776stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3004{ 3777{
3005 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3778 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3006 3779
3007 /* we copy this here each the time so that */ 3780 ev_statdata prev = w->attr;
3008 /* prev has the old value when the callback gets invoked */
3009 w->prev = w->attr;
3010 ev_stat_stat (EV_A_ w); 3781 ev_stat_stat (EV_A_ w);
3011 3782
3012 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3783 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3013 if ( 3784 if (
3014 w->prev.st_dev != w->attr.st_dev 3785 prev.st_dev != w->attr.st_dev
3015 || w->prev.st_ino != w->attr.st_ino 3786 || prev.st_ino != w->attr.st_ino
3016 || w->prev.st_mode != w->attr.st_mode 3787 || prev.st_mode != w->attr.st_mode
3017 || w->prev.st_nlink != w->attr.st_nlink 3788 || prev.st_nlink != w->attr.st_nlink
3018 || w->prev.st_uid != w->attr.st_uid 3789 || prev.st_uid != w->attr.st_uid
3019 || w->prev.st_gid != w->attr.st_gid 3790 || prev.st_gid != w->attr.st_gid
3020 || w->prev.st_rdev != w->attr.st_rdev 3791 || prev.st_rdev != w->attr.st_rdev
3021 || w->prev.st_size != w->attr.st_size 3792 || prev.st_size != w->attr.st_size
3022 || w->prev.st_atime != w->attr.st_atime 3793 || prev.st_atime != w->attr.st_atime
3023 || w->prev.st_mtime != w->attr.st_mtime 3794 || prev.st_mtime != w->attr.st_mtime
3024 || w->prev.st_ctime != w->attr.st_ctime 3795 || prev.st_ctime != w->attr.st_ctime
3025 ) { 3796 ) {
3797 /* we only update w->prev on actual differences */
3798 /* in case we test more often than invoke the callback, */
3799 /* to ensure that prev is always different to attr */
3800 w->prev = prev;
3801
3026 #if EV_USE_INOTIFY 3802 #if EV_USE_INOTIFY
3027 if (fs_fd >= 0) 3803 if (fs_fd >= 0)
3028 { 3804 {
3029 infy_del (EV_A_ w); 3805 infy_del (EV_A_ w);
3030 infy_add (EV_A_ w); 3806 infy_add (EV_A_ w);
… …
3055 3831
3056 if (fs_fd >= 0) 3832 if (fs_fd >= 0)
3057 infy_add (EV_A_ w); 3833 infy_add (EV_A_ w);
3058 else 3834 else
3059#endif 3835#endif
3836 {
3060 ev_timer_again (EV_A_ &w->timer); 3837 ev_timer_again (EV_A_ &w->timer);
3838 ev_unref (EV_A);
3839 }
3061 3840
3062 ev_start (EV_A_ (W)w, 1); 3841 ev_start (EV_A_ (W)w, 1);
3063 3842
3064 EV_FREQUENT_CHECK; 3843 EV_FREQUENT_CHECK;
3065} 3844}
… …
3074 EV_FREQUENT_CHECK; 3853 EV_FREQUENT_CHECK;
3075 3854
3076#if EV_USE_INOTIFY 3855#if EV_USE_INOTIFY
3077 infy_del (EV_A_ w); 3856 infy_del (EV_A_ w);
3078#endif 3857#endif
3858
3859 if (ev_is_active (&w->timer))
3860 {
3861 ev_ref (EV_A);
3079 ev_timer_stop (EV_A_ &w->timer); 3862 ev_timer_stop (EV_A_ &w->timer);
3863 }
3080 3864
3081 ev_stop (EV_A_ (W)w); 3865 ev_stop (EV_A_ (W)w);
3082 3866
3083 EV_FREQUENT_CHECK; 3867 EV_FREQUENT_CHECK;
3084} 3868}
… …
3129 3913
3130 EV_FREQUENT_CHECK; 3914 EV_FREQUENT_CHECK;
3131} 3915}
3132#endif 3916#endif
3133 3917
3918#if EV_PREPARE_ENABLE
3134void 3919void
3135ev_prepare_start (EV_P_ ev_prepare *w) 3920ev_prepare_start (EV_P_ ev_prepare *w)
3136{ 3921{
3137 if (expect_false (ev_is_active (w))) 3922 if (expect_false (ev_is_active (w)))
3138 return; 3923 return;
… …
3164 3949
3165 ev_stop (EV_A_ (W)w); 3950 ev_stop (EV_A_ (W)w);
3166 3951
3167 EV_FREQUENT_CHECK; 3952 EV_FREQUENT_CHECK;
3168} 3953}
3954#endif
3169 3955
3956#if EV_CHECK_ENABLE
3170void 3957void
3171ev_check_start (EV_P_ ev_check *w) 3958ev_check_start (EV_P_ ev_check *w)
3172{ 3959{
3173 if (expect_false (ev_is_active (w))) 3960 if (expect_false (ev_is_active (w)))
3174 return; 3961 return;
… …
3200 3987
3201 ev_stop (EV_A_ (W)w); 3988 ev_stop (EV_A_ (W)w);
3202 3989
3203 EV_FREQUENT_CHECK; 3990 EV_FREQUENT_CHECK;
3204} 3991}
3992#endif
3205 3993
3206#if EV_EMBED_ENABLE 3994#if EV_EMBED_ENABLE
3207void noinline 3995void noinline
3208ev_embed_sweep (EV_P_ ev_embed *w) 3996ev_embed_sweep (EV_P_ ev_embed *w)
3209{ 3997{
3210 ev_loop (w->other, EVLOOP_NONBLOCK); 3998 ev_run (w->other, EVRUN_NOWAIT);
3211} 3999}
3212 4000
3213static void 4001static void
3214embed_io_cb (EV_P_ ev_io *io, int revents) 4002embed_io_cb (EV_P_ ev_io *io, int revents)
3215{ 4003{
3216 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4004 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3217 4005
3218 if (ev_cb (w)) 4006 if (ev_cb (w))
3219 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4007 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3220 else 4008 else
3221 ev_loop (w->other, EVLOOP_NONBLOCK); 4009 ev_run (w->other, EVRUN_NOWAIT);
3222} 4010}
3223 4011
3224static void 4012static void
3225embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4013embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3226{ 4014{
3227 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4015 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3228 4016
3229 { 4017 {
3230 struct ev_loop *loop = w->other; 4018 EV_P = w->other;
3231 4019
3232 while (fdchangecnt) 4020 while (fdchangecnt)
3233 { 4021 {
3234 fd_reify (EV_A); 4022 fd_reify (EV_A);
3235 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4023 ev_run (EV_A_ EVRUN_NOWAIT);
3236 } 4024 }
3237 } 4025 }
3238} 4026}
3239 4027
3240static void 4028static void
… …
3243 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4031 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3244 4032
3245 ev_embed_stop (EV_A_ w); 4033 ev_embed_stop (EV_A_ w);
3246 4034
3247 { 4035 {
3248 struct ev_loop *loop = w->other; 4036 EV_P = w->other;
3249 4037
3250 ev_loop_fork (EV_A); 4038 ev_loop_fork (EV_A);
3251 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4039 ev_run (EV_A_ EVRUN_NOWAIT);
3252 } 4040 }
3253 4041
3254 ev_embed_start (EV_A_ w); 4042 ev_embed_start (EV_A_ w);
3255} 4043}
3256 4044
… …
3267{ 4055{
3268 if (expect_false (ev_is_active (w))) 4056 if (expect_false (ev_is_active (w)))
3269 return; 4057 return;
3270 4058
3271 { 4059 {
3272 struct ev_loop *loop = w->other; 4060 EV_P = w->other;
3273 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4061 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3274 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4062 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3275 } 4063 }
3276 4064
3277 EV_FREQUENT_CHECK; 4065 EV_FREQUENT_CHECK;
… …
3304 4092
3305 ev_io_stop (EV_A_ &w->io); 4093 ev_io_stop (EV_A_ &w->io);
3306 ev_prepare_stop (EV_A_ &w->prepare); 4094 ev_prepare_stop (EV_A_ &w->prepare);
3307 ev_fork_stop (EV_A_ &w->fork); 4095 ev_fork_stop (EV_A_ &w->fork);
3308 4096
4097 ev_stop (EV_A_ (W)w);
4098
3309 EV_FREQUENT_CHECK; 4099 EV_FREQUENT_CHECK;
3310} 4100}
3311#endif 4101#endif
3312 4102
3313#if EV_FORK_ENABLE 4103#if EV_FORK_ENABLE
… …
3346 4136
3347 EV_FREQUENT_CHECK; 4137 EV_FREQUENT_CHECK;
3348} 4138}
3349#endif 4139#endif
3350 4140
4141#if EV_CLEANUP_ENABLE
4142void
4143ev_cleanup_start (EV_P_ ev_cleanup *w)
4144{
4145 if (expect_false (ev_is_active (w)))
4146 return;
4147
4148 EV_FREQUENT_CHECK;
4149
4150 ev_start (EV_A_ (W)w, ++cleanupcnt);
4151 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4152 cleanups [cleanupcnt - 1] = w;
4153
4154 /* cleanup watchers should never keep a refcount on the loop */
4155 ev_unref (EV_A);
4156 EV_FREQUENT_CHECK;
4157}
4158
4159void
4160ev_cleanup_stop (EV_P_ ev_cleanup *w)
4161{
4162 clear_pending (EV_A_ (W)w);
4163 if (expect_false (!ev_is_active (w)))
4164 return;
4165
4166 EV_FREQUENT_CHECK;
4167 ev_ref (EV_A);
4168
4169 {
4170 int active = ev_active (w);
4171
4172 cleanups [active - 1] = cleanups [--cleanupcnt];
4173 ev_active (cleanups [active - 1]) = active;
4174 }
4175
4176 ev_stop (EV_A_ (W)w);
4177
4178 EV_FREQUENT_CHECK;
4179}
4180#endif
4181
3351#if EV_ASYNC_ENABLE 4182#if EV_ASYNC_ENABLE
3352void 4183void
3353ev_async_start (EV_P_ ev_async *w) 4184ev_async_start (EV_P_ ev_async *w)
3354{ 4185{
3355 if (expect_false (ev_is_active (w))) 4186 if (expect_false (ev_is_active (w)))
3356 return; 4187 return;
3357 4188
4189 w->sent = 0;
4190
3358 evpipe_init (EV_A); 4191 evpipe_init (EV_A);
3359 4192
3360 EV_FREQUENT_CHECK; 4193 EV_FREQUENT_CHECK;
3361 4194
3362 ev_start (EV_A_ (W)w, ++asynccnt); 4195 ev_start (EV_A_ (W)w, ++asynccnt);
… …
3389 4222
3390void 4223void
3391ev_async_send (EV_P_ ev_async *w) 4224ev_async_send (EV_P_ ev_async *w)
3392{ 4225{
3393 w->sent = 1; 4226 w->sent = 1;
3394 evpipe_write (EV_A_ &gotasync); 4227 evpipe_write (EV_A_ &async_pending);
3395} 4228}
3396#endif 4229#endif
3397 4230
3398/*****************************************************************************/ 4231/*****************************************************************************/
3399 4232
… …
3439{ 4272{
3440 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4273 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3441 4274
3442 if (expect_false (!once)) 4275 if (expect_false (!once))
3443 { 4276 {
3444 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4277 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3445 return; 4278 return;
3446 } 4279 }
3447 4280
3448 once->cb = cb; 4281 once->cb = cb;
3449 once->arg = arg; 4282 once->arg = arg;
… …
3464} 4297}
3465 4298
3466/*****************************************************************************/ 4299/*****************************************************************************/
3467 4300
3468#if EV_WALK_ENABLE 4301#if EV_WALK_ENABLE
3469void 4302void ecb_cold
3470ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4303ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3471{ 4304{
3472 int i, j; 4305 int i, j;
3473 ev_watcher_list *wl, *wn; 4306 ev_watcher_list *wl, *wn;
3474 4307
… …
3518 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4351 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3519#endif 4352#endif
3520 4353
3521#if EV_IDLE_ENABLE 4354#if EV_IDLE_ENABLE
3522 if (types & EV_IDLE) 4355 if (types & EV_IDLE)
3523 for (j = NUMPRI; i--; ) 4356 for (j = NUMPRI; j--; )
3524 for (i = idlecnt [j]; i--; ) 4357 for (i = idlecnt [j]; i--; )
3525 cb (EV_A_ EV_IDLE, idles [j][i]); 4358 cb (EV_A_ EV_IDLE, idles [j][i]);
3526#endif 4359#endif
3527 4360
3528#if EV_FORK_ENABLE 4361#if EV_FORK_ENABLE
… …
3536 if (types & EV_ASYNC) 4369 if (types & EV_ASYNC)
3537 for (i = asynccnt; i--; ) 4370 for (i = asynccnt; i--; )
3538 cb (EV_A_ EV_ASYNC, asyncs [i]); 4371 cb (EV_A_ EV_ASYNC, asyncs [i]);
3539#endif 4372#endif
3540 4373
4374#if EV_PREPARE_ENABLE
3541 if (types & EV_PREPARE) 4375 if (types & EV_PREPARE)
3542 for (i = preparecnt; i--; ) 4376 for (i = preparecnt; i--; )
3543#if EV_EMBED_ENABLE 4377# if EV_EMBED_ENABLE
3544 if (ev_cb (prepares [i]) != embed_prepare_cb) 4378 if (ev_cb (prepares [i]) != embed_prepare_cb)
3545#endif 4379# endif
3546 cb (EV_A_ EV_PREPARE, prepares [i]); 4380 cb (EV_A_ EV_PREPARE, prepares [i]);
4381#endif
3547 4382
4383#if EV_CHECK_ENABLE
3548 if (types & EV_CHECK) 4384 if (types & EV_CHECK)
3549 for (i = checkcnt; i--; ) 4385 for (i = checkcnt; i--; )
3550 cb (EV_A_ EV_CHECK, checks [i]); 4386 cb (EV_A_ EV_CHECK, checks [i]);
4387#endif
3551 4388
4389#if EV_SIGNAL_ENABLE
3552 if (types & EV_SIGNAL) 4390 if (types & EV_SIGNAL)
3553 for (i = 0; i < signalmax; ++i) 4391 for (i = 0; i < EV_NSIG - 1; ++i)
3554 for (wl = signals [i].head; wl; ) 4392 for (wl = signals [i].head; wl; )
3555 { 4393 {
3556 wn = wl->next; 4394 wn = wl->next;
3557 cb (EV_A_ EV_SIGNAL, wl); 4395 cb (EV_A_ EV_SIGNAL, wl);
3558 wl = wn; 4396 wl = wn;
3559 } 4397 }
4398#endif
3560 4399
4400#if EV_CHILD_ENABLE
3561 if (types & EV_CHILD) 4401 if (types & EV_CHILD)
3562 for (i = EV_PID_HASHSIZE; i--; ) 4402 for (i = (EV_PID_HASHSIZE); i--; )
3563 for (wl = childs [i]; wl; ) 4403 for (wl = childs [i]; wl; )
3564 { 4404 {
3565 wn = wl->next; 4405 wn = wl->next;
3566 cb (EV_A_ EV_CHILD, wl); 4406 cb (EV_A_ EV_CHILD, wl);
3567 wl = wn; 4407 wl = wn;
3568 } 4408 }
4409#endif
3569/* EV_STAT 0x00001000 /* stat data changed */ 4410/* EV_STAT 0x00001000 /* stat data changed */
3570/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4411/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3571} 4412}
3572#endif 4413#endif
3573 4414
3574#if EV_MULTIPLICITY 4415#if EV_MULTIPLICITY
3575 #include "ev_wrap.h" 4416 #include "ev_wrap.h"
3576#endif 4417#endif
3577 4418
3578#ifdef __cplusplus
3579}
3580#endif
3581

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