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Comparing libev/ev.c (file contents):
Revision 1.292 by root, Mon Jun 29 07:22:56 2009 UTC vs.
Revision 1.392 by root, Thu Aug 4 14:37:49 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
147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138# ifndef EV_USE_EVENTFD 148# ifndef EV_USE_SIGNALFD
139# if HAVE_EVENTFD 149# define EV_USE_SIGNALFD EV_FEATURE_OS
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
154# endif
155
156# if HAVE_EVENTFD
157# ifndef EV_USE_EVENTFD
158# define EV_USE_EVENTFD EV_FEATURE_OS
159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
144# endif 163# endif
145 164
146#endif 165#endif
147 166
148#include <math.h>
149#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
150#include <fcntl.h> 169#include <fcntl.h>
151#include <stddef.h> 170#include <stddef.h>
152 171
153#include <stdio.h> 172#include <stdio.h>
154 173
155#include <assert.h> 174#include <assert.h>
156#include <errno.h> 175#include <errno.h>
157#include <sys/types.h> 176#include <sys/types.h>
158#include <time.h> 177#include <time.h>
178#include <limits.h>
159 179
160#include <signal.h> 180#include <signal.h>
161 181
162#ifdef EV_H 182#ifdef EV_H
163# include EV_H 183# include EV_H
164#else 184#else
165# include "ev.h" 185# include "ev.h"
166#endif 186#endif
187
188EV_CPP(extern "C" {)
167 189
168#ifndef _WIN32 190#ifndef _WIN32
169# include <sys/time.h> 191# include <sys/time.h>
170# include <sys/wait.h> 192# include <sys/wait.h>
171# include <unistd.h> 193# include <unistd.h>
… …
174# define WIN32_LEAN_AND_MEAN 196# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 197# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 198# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 199# define EV_SELECT_IS_WINSOCKET 1
178# endif 200# endif
201# undef EV_AVOID_STDIO
179#endif 202#endif
203
204/* OS X, in its infinite idiocy, actually HARDCODES
205 * a limit of 1024 into their select. Where people have brains,
206 * OS X engineers apparently have a vacuum. Or maybe they were
207 * ordered to have a vacuum, or they do anything for money.
208 * This might help. Or not.
209 */
210#define _DARWIN_UNLIMITED_SELECT 1
180 211
181/* this block tries to deduce configuration from header-defined symbols and defaults */ 212/* this block tries to deduce configuration from header-defined symbols and defaults */
213
214/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG)
216/* use what's provided */
217#elif defined (NSIG)
218# define EV_NSIG (NSIG)
219#elif defined(_NSIG)
220# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX)
222# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX)
224# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX)
226# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG)
228# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG)
230# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE)
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig)
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else
236# error "unable to find value for NSIG, please report"
237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
239# define EV_NSIG 65
240#endif
241
242#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0
244#endif
182 245
183#ifndef EV_USE_CLOCK_SYSCALL 246#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 247# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 249# else
187# define EV_USE_CLOCK_SYSCALL 0 250# define EV_USE_CLOCK_SYSCALL 0
188# endif 251# endif
189#endif 252#endif
190 253
191#ifndef EV_USE_MONOTONIC 254#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 256# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 257# else
195# define EV_USE_MONOTONIC 0 258# define EV_USE_MONOTONIC 0
196# endif 259# endif
197#endif 260#endif
198 261
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 263# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 264#endif
202 265
203#ifndef EV_USE_NANOSLEEP 266#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 267# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 268# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 269# else
207# define EV_USE_NANOSLEEP 0 270# define EV_USE_NANOSLEEP 0
208# endif 271# endif
209#endif 272#endif
210 273
211#ifndef EV_USE_SELECT 274#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 275# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 276#endif
214 277
215#ifndef EV_USE_POLL 278#ifndef EV_USE_POLL
216# ifdef _WIN32 279# ifdef _WIN32
217# define EV_USE_POLL 0 280# define EV_USE_POLL 0
218# else 281# else
219# define EV_USE_POLL 1 282# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 283# endif
221#endif 284#endif
222 285
223#ifndef EV_USE_EPOLL 286#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 287# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 288# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 289# else
227# define EV_USE_EPOLL 0 290# define EV_USE_EPOLL 0
228# endif 291# endif
229#endif 292#endif
230 293
… …
236# define EV_USE_PORT 0 299# define EV_USE_PORT 0
237#endif 300#endif
238 301
239#ifndef EV_USE_INOTIFY 302#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 304# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 305# else
243# define EV_USE_INOTIFY 0 306# define EV_USE_INOTIFY 0
244# endif 307# endif
245#endif 308#endif
246 309
247#ifndef EV_PID_HASHSIZE 310#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 311# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249# define EV_PID_HASHSIZE 1
250# else
251# define EV_PID_HASHSIZE 16
252# endif
253#endif 312#endif
254 313
255#ifndef EV_INOTIFY_HASHSIZE 314#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 315# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_INOTIFY_HASHSIZE 1
258# else
259# define EV_INOTIFY_HASHSIZE 16
260# endif
261#endif 316#endif
262 317
263#ifndef EV_USE_EVENTFD 318#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 320# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 321# else
267# define EV_USE_EVENTFD 0 322# define EV_USE_EVENTFD 0
323# endif
324#endif
325
326#ifndef EV_USE_SIGNALFD
327# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
328# define EV_USE_SIGNALFD EV_FEATURE_OS
329# else
330# define EV_USE_SIGNALFD 0
268# endif 331# endif
269#endif 332#endif
270 333
271#if 0 /* debugging */ 334#if 0 /* debugging */
272# define EV_VERIFY 3 335# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 336# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 337# define EV_HEAP_CACHE_AT 1
275#endif 338#endif
276 339
277#ifndef EV_VERIFY 340#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 341# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 342#endif
280 343
281#ifndef EV_USE_4HEAP 344#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 345# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 346#endif
284 347
285#ifndef EV_HEAP_CACHE_AT 348#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif 350#endif
288 351
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290/* which makes programs even slower. might work on other unices, too. */ 353/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 354#if EV_USE_CLOCK_SYSCALL
… …
300# endif 363# endif
301#endif 364#endif
302 365
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 366/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304 367
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
305#ifndef CLOCK_MONOTONIC 374#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 375# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 376# define EV_USE_MONOTONIC 0
308#endif 377#endif
309 378
… …
316# undef EV_USE_INOTIFY 385# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0 386# define EV_USE_INOTIFY 0
318#endif 387#endif
319 388
320#if !EV_USE_NANOSLEEP 389#if !EV_USE_NANOSLEEP
321# ifndef _WIN32 390/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux)
322# include <sys/select.h> 392# include <sys/select.h>
323# endif 393# endif
324#endif 394#endif
325 395
326#if EV_USE_INOTIFY 396#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 397# include <sys/statfs.h>
329# include <sys/inotify.h> 398# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 400# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 401# undef EV_USE_INOTIFY
… …
339#endif 408#endif
340 409
341#if EV_USE_EVENTFD 410#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 412# include <stdint.h>
344# ifdef __cplusplus 413# ifndef EFD_NONBLOCK
345extern "C" { 414# define EFD_NONBLOCK O_NONBLOCK
346# endif 415# endif
347int eventfd (unsigned int initval, int flags); 416# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 417# ifdef O_CLOEXEC
349} 418# define EFD_CLOEXEC O_CLOEXEC
419# else
420# define EFD_CLOEXEC 02000000
421# endif
350# endif 422# endif
423EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
424#endif
425
426#if EV_USE_SIGNALFD
427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
428# include <stdint.h>
429# ifndef SFD_NONBLOCK
430# define SFD_NONBLOCK O_NONBLOCK
431# endif
432# ifndef SFD_CLOEXEC
433# ifdef O_CLOEXEC
434# define SFD_CLOEXEC O_CLOEXEC
435# else
436# define SFD_CLOEXEC 02000000
437# endif
438# endif
439EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
440
441struct signalfd_siginfo
442{
443 uint32_t ssi_signo;
444 char pad[128 - sizeof (uint32_t)];
445};
351#endif 446#endif
352 447
353/**/ 448/**/
354 449
355#if EV_VERIFY >= 3 450#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 451# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 452#else
358# define EV_FREQUENT_CHECK do { } while (0) 453# define EV_FREQUENT_CHECK do { } while (0)
359#endif 454#endif
360 455
361/* 456/*
362 * This is used to avoid floating point rounding problems. 457 * This is used to work around floating point rounding problems.
363 * It is added to ev_rt_now when scheduling periodics
364 * to ensure progress, time-wise, even when rounding
365 * errors are against us.
366 * This value is good at least till the year 4000. 458 * This value is good at least till the year 4000.
367 * Better solutions welcome.
368 */ 459 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 460#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
461/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
370 462
371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 463#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
372#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
373/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
374 465
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468
469/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470/* ECB.H BEGIN */
471/*
472 * libecb - http://software.schmorp.de/pkg/libecb
473 *
474 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de>
475 * Copyright (©) 2011 Emanuele Giaquinta
476 * All rights reserved.
477 *
478 * Redistribution and use in source and binary forms, with or without modifica-
479 * tion, are permitted provided that the following conditions are met:
480 *
481 * 1. Redistributions of source code must retain the above copyright notice,
482 * this list of conditions and the following disclaimer.
483 *
484 * 2. Redistributions in binary form must reproduce the above copyright
485 * notice, this list of conditions and the following disclaimer in the
486 * documentation and/or other materials provided with the distribution.
487 *
488 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
489 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
490 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
491 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
492 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
493 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
494 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
495 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
496 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
497 * OF THE POSSIBILITY OF SUCH DAMAGE.
498 */
499
500#ifndef ECB_H
501#define ECB_H
502
503#ifdef _WIN32
504 typedef signed char int8_t;
505 typedef unsigned char uint8_t;
506 typedef signed short int16_t;
507 typedef unsigned short uint16_t;
508 typedef signed int int32_t;
509 typedef unsigned int uint32_t;
375#if __GNUC__ >= 4 510 #if __GNUC__
376# define expect(expr,value) __builtin_expect ((expr),(value)) 511 typedef signed long long int64_t;
377# define noinline __attribute__ ((noinline)) 512 typedef unsigned long long uint64_t;
513 #else /* _MSC_VER || __BORLANDC__ */
514 typedef signed __int64 int64_t;
515 typedef unsigned __int64 uint64_t;
516 #endif
378#else 517#else
379# define expect(expr,value) (expr) 518 #include <inttypes.h>
380# define noinline
381# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
382# define inline
383# endif 519#endif
520
521/* many compilers define _GNUC_ to some versions but then only implement
522 * what their idiot authors think are the "more important" extensions,
523 * causing enormous grief in return for some better fake benchmark numbers.
524 * or so.
525 * we try to detect these and simply assume they are not gcc - if they have
526 * an issue with that they should have done it right in the first place.
527 */
528#ifndef ECB_GCC_VERSION
529 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
530 #define ECB_GCC_VERSION(major,minor) 0
531 #else
532 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
384#endif 533 #endif
534#endif
385 535
536/*****************************************************************************/
537
538/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
539/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540
541#if ECB_NO_THREADS || ECB_NO_SMP
542 #define ECB_MEMORY_FENCE do { } while (0)
543 #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0)
544 #define ECB_MEMORY_FENCE_RELEASE do { } while (0)
545#endif
546
547#ifndef ECB_MEMORY_FENCE
548 #if ECB_GCC_VERSION(2,5)
549 #if __x86
550 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
551 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
552 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
553 #elif __amd64
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
555 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
556 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
557 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
558 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
559 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
560 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) \
561 || defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
562 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
563 #define ECB_MEMORY_FENCE \
564 do { \
565 int null = 0; \
566 __asm__ __volatile__ ("mcr p15,0,%0,c6,c10,5", : "=&r" (null) : : "memory"); \
567 while (0)
568 #endif
569 #endif
570#endif
571
572#ifndef ECB_MEMORY_FENCE
573 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER)
574 #define ECB_MEMORY_FENCE __sync_synchronize ()
575 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
576 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
577 #elif _MSC_VER >= 1400 /* VC++ 2005 */
578 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
579 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
580 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
581 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
582 #elif defined(_WIN32)
583 #include <WinNT.h>
584 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
585 #endif
586#endif
587
588#ifndef ECB_MEMORY_FENCE
589 #if !ECB_AVOID_PTHREADS
590 /*
591 * if you get undefined symbol references to pthread_mutex_lock,
592 * or failure to find pthread.h, then you should implement
593 * the ECB_MEMORY_FENCE operations for your cpu/compiler
594 * OR provide pthread.h and link against the posix thread library
595 * of your system.
596 */
597 #include <pthread.h>
598 #define ECB_NEEDS_PTHREADS 1
599 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
600
601 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
602 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
603 #endif
604#endif
605
606#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
607 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
608#endif
609
610#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
611 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
612#endif
613
614/*****************************************************************************/
615
616#define ECB_C99 (__STDC_VERSION__ >= 199901L)
617
618#if __cplusplus
619 #define ecb_inline static inline
620#elif ECB_GCC_VERSION(2,5)
621 #define ecb_inline static __inline__
622#elif ECB_C99
623 #define ecb_inline static inline
624#else
625 #define ecb_inline static
626#endif
627
628#if ECB_GCC_VERSION(3,3)
629 #define ecb_restrict __restrict__
630#elif ECB_C99
631 #define ecb_restrict restrict
632#else
633 #define ecb_restrict
634#endif
635
636typedef int ecb_bool;
637
638#define ECB_CONCAT_(a, b) a ## b
639#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
640#define ECB_STRINGIFY_(a) # a
641#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
642
643#define ecb_function_ ecb_inline
644
645#if ECB_GCC_VERSION(3,1)
646 #define ecb_attribute(attrlist) __attribute__(attrlist)
647 #define ecb_is_constant(expr) __builtin_constant_p (expr)
648 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
649 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
650#else
651 #define ecb_attribute(attrlist)
652 #define ecb_is_constant(expr) 0
653 #define ecb_expect(expr,value) (expr)
654 #define ecb_prefetch(addr,rw,locality)
655#endif
656
657/* no emulation for ecb_decltype */
658#if ECB_GCC_VERSION(4,5)
659 #define ecb_decltype(x) __decltype(x)
660#elif ECB_GCC_VERSION(3,0)
661 #define ecb_decltype(x) __typeof(x)
662#endif
663
664#define ecb_noinline ecb_attribute ((__noinline__))
665#define ecb_noreturn ecb_attribute ((__noreturn__))
666#define ecb_unused ecb_attribute ((__unused__))
667#define ecb_const ecb_attribute ((__const__))
668#define ecb_pure ecb_attribute ((__pure__))
669
670#if ECB_GCC_VERSION(4,3)
671 #define ecb_artificial ecb_attribute ((__artificial__))
672 #define ecb_hot ecb_attribute ((__hot__))
673 #define ecb_cold ecb_attribute ((__cold__))
674#else
675 #define ecb_artificial
676 #define ecb_hot
677 #define ecb_cold
678#endif
679
680/* put around conditional expressions if you are very sure that the */
681/* expression is mostly true or mostly false. note that these return */
682/* booleans, not the expression. */
386#define expect_false(expr) expect ((expr) != 0, 0) 683#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 684#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
685/* for compatibility to the rest of the world */
686#define ecb_likely(expr) ecb_expect_true (expr)
687#define ecb_unlikely(expr) ecb_expect_false (expr)
688
689/* count trailing zero bits and count # of one bits */
690#if ECB_GCC_VERSION(3,4)
691 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
692 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
693 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
694 #define ecb_ctz32(x) __builtin_ctz (x)
695 #define ecb_ctz64(x) __builtin_ctzll (x)
696 #define ecb_popcount32(x) __builtin_popcount (x)
697 /* no popcountll */
698#else
699 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
700 ecb_function_ int
701 ecb_ctz32 (uint32_t x)
702 {
703 int r = 0;
704
705 x &= ~x + 1; /* this isolates the lowest bit */
706
707#if ECB_branchless_on_i386
708 r += !!(x & 0xaaaaaaaa) << 0;
709 r += !!(x & 0xcccccccc) << 1;
710 r += !!(x & 0xf0f0f0f0) << 2;
711 r += !!(x & 0xff00ff00) << 3;
712 r += !!(x & 0xffff0000) << 4;
713#else
714 if (x & 0xaaaaaaaa) r += 1;
715 if (x & 0xcccccccc) r += 2;
716 if (x & 0xf0f0f0f0) r += 4;
717 if (x & 0xff00ff00) r += 8;
718 if (x & 0xffff0000) r += 16;
719#endif
720
721 return r;
722 }
723
724 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
725 ecb_function_ int
726 ecb_ctz64 (uint64_t x)
727 {
728 int shift = x & 0xffffffffU ? 0 : 32;
729 return ecb_ctz32 (x >> shift) + shift;
730 }
731
732 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
733 ecb_function_ int
734 ecb_popcount32 (uint32_t x)
735 {
736 x -= (x >> 1) & 0x55555555;
737 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
738 x = ((x >> 4) + x) & 0x0f0f0f0f;
739 x *= 0x01010101;
740
741 return x >> 24;
742 }
743
744 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
745 ecb_function_ int ecb_ld32 (uint32_t x)
746 {
747 int r = 0;
748
749 if (x >> 16) { x >>= 16; r += 16; }
750 if (x >> 8) { x >>= 8; r += 8; }
751 if (x >> 4) { x >>= 4; r += 4; }
752 if (x >> 2) { x >>= 2; r += 2; }
753 if (x >> 1) { r += 1; }
754
755 return r;
756 }
757
758 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
759 ecb_function_ int ecb_ld64 (uint64_t x)
760 {
761 int r = 0;
762
763 if (x >> 32) { x >>= 32; r += 32; }
764
765 return r + ecb_ld32 (x);
766 }
767#endif
768
769/* popcount64 is only available on 64 bit cpus as gcc builtin */
770/* so for this version we are lazy */
771ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
772ecb_function_ int
773ecb_popcount64 (uint64_t x)
774{
775 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
776}
777
778ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
779ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
780ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
781ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
782ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
783ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
784ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
785ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
786
787ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
788ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
789ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
790ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
791ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
792ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
793ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
794ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
795
796#if ECB_GCC_VERSION(4,3)
797 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
798 #define ecb_bswap32(x) __builtin_bswap32 (x)
799 #define ecb_bswap64(x) __builtin_bswap64 (x)
800#else
801 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
802 ecb_function_ uint16_t
803 ecb_bswap16 (uint16_t x)
804 {
805 return ecb_rotl16 (x, 8);
806 }
807
808 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
809 ecb_function_ uint32_t
810 ecb_bswap32 (uint32_t x)
811 {
812 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
813 }
814
815 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
816 ecb_function_ uint64_t
817 ecb_bswap64 (uint64_t x)
818 {
819 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
820 }
821#endif
822
823#if ECB_GCC_VERSION(4,5)
824 #define ecb_unreachable() __builtin_unreachable ()
825#else
826 /* this seems to work fine, but gcc always emits a warning for it :/ */
827 ecb_function_ void ecb_unreachable (void) ecb_noreturn;
828 ecb_function_ void ecb_unreachable (void) { }
829#endif
830
831/* try to tell the compiler that some condition is definitely true */
832#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
833
834ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;
835ecb_function_ unsigned char
836ecb_byteorder_helper (void)
837{
838 const uint32_t u = 0x11223344;
839 return *(unsigned char *)&u;
840}
841
842ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;
843ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
844ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;
845ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
846
847#if ECB_GCC_VERSION(3,0) || ECB_C99
848 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
849#else
850 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
851#endif
852
853#if ecb_cplusplus_does_not_suck
854 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
855 template<typename T, int N>
856 static inline int ecb_array_length (const T (&arr)[N])
857 {
858 return N;
859 }
860#else
861 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
862#endif
863
864#endif
865
866/* ECB.H END */
867
868#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
869# undef ECB_MEMORY_FENCE
870# undef ECB_MEMORY_FENCE_ACQUIRE
871# undef ECB_MEMORY_FENCE_RELEASE
872#endif
873
874#define expect_false(cond) ecb_expect_false (cond)
875#define expect_true(cond) ecb_expect_true (cond)
876#define noinline ecb_noinline
877
388#define inline_size static inline 878#define inline_size ecb_inline
389 879
390#if EV_MINIMAL 880#if EV_FEATURE_CODE
881# define inline_speed ecb_inline
882#else
391# define inline_speed static noinline 883# define inline_speed static noinline
884#endif
885
886#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
887
888#if EV_MINPRI == EV_MAXPRI
889# define ABSPRI(w) (((W)w), 0)
392#else 890#else
393# define inline_speed static inline
394#endif
395
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 891# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
892#endif
398 893
399#define EMPTY /* required for microsofts broken pseudo-c compiler */ 894#define EMPTY /* required for microsofts broken pseudo-c compiler */
400#define EMPTY2(a,b) /* used to suppress some warnings */ 895#define EMPTY2(a,b) /* used to suppress some warnings */
401 896
402typedef ev_watcher *W; 897typedef ev_watcher *W;
… …
406#define ev_active(w) ((W)(w))->active 901#define ev_active(w) ((W)(w))->active
407#define ev_at(w) ((WT)(w))->at 902#define ev_at(w) ((WT)(w))->at
408 903
409#if EV_USE_REALTIME 904#if EV_USE_REALTIME
410/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 905/* sig_atomic_t is used to avoid per-thread variables or locking but still */
411/* giving it a reasonably high chance of working on typical architetcures */ 906/* giving it a reasonably high chance of working on typical architectures */
412static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 907static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
413#endif 908#endif
414 909
415#if EV_USE_MONOTONIC 910#if EV_USE_MONOTONIC
416static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 911static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
417#endif 912#endif
418 913
914#ifndef EV_FD_TO_WIN32_HANDLE
915# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
916#endif
917#ifndef EV_WIN32_HANDLE_TO_FD
918# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
919#endif
920#ifndef EV_WIN32_CLOSE_FD
921# define EV_WIN32_CLOSE_FD(fd) close (fd)
922#endif
923
419#ifdef _WIN32 924#ifdef _WIN32
420# include "ev_win32.c" 925# include "ev_win32.c"
421#endif 926#endif
422 927
423/*****************************************************************************/ 928/*****************************************************************************/
424 929
930/* define a suitable floor function (only used by periodics atm) */
931
932#if EV_USE_FLOOR
933# include <math.h>
934# define ev_floor(v) floor (v)
935#else
936
937#include <float.h>
938
939/* a floor() replacement function, should be independent of ev_tstamp type */
940static ev_tstamp noinline
941ev_floor (ev_tstamp v)
942{
943 /* the choice of shift factor is not terribly important */
944#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
945 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
946#else
947 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
948#endif
949
950 /* argument too large for an unsigned long? */
951 if (expect_false (v >= shift))
952 {
953 ev_tstamp f;
954
955 if (v == v - 1.)
956 return v; /* very large number */
957
958 f = shift * ev_floor (v * (1. / shift));
959 return f + ev_floor (v - f);
960 }
961
962 /* special treatment for negative args? */
963 if (expect_false (v < 0.))
964 {
965 ev_tstamp f = -ev_floor (-v);
966
967 return f - (f == v ? 0 : 1);
968 }
969
970 /* fits into an unsigned long */
971 return (unsigned long)v;
972}
973
974#endif
975
976/*****************************************************************************/
977
978#ifdef __linux
979# include <sys/utsname.h>
980#endif
981
982static unsigned int noinline ecb_cold
983ev_linux_version (void)
984{
985#ifdef __linux
986 unsigned int v = 0;
987 struct utsname buf;
988 int i;
989 char *p = buf.release;
990
991 if (uname (&buf))
992 return 0;
993
994 for (i = 3+1; --i; )
995 {
996 unsigned int c = 0;
997
998 for (;;)
999 {
1000 if (*p >= '0' && *p <= '9')
1001 c = c * 10 + *p++ - '0';
1002 else
1003 {
1004 p += *p == '.';
1005 break;
1006 }
1007 }
1008
1009 v = (v << 8) | c;
1010 }
1011
1012 return v;
1013#else
1014 return 0;
1015#endif
1016}
1017
1018/*****************************************************************************/
1019
1020#if EV_AVOID_STDIO
1021static void noinline ecb_cold
1022ev_printerr (const char *msg)
1023{
1024 write (STDERR_FILENO, msg, strlen (msg));
1025}
1026#endif
1027
425static void (*syserr_cb)(const char *msg); 1028static void (*syserr_cb)(const char *msg);
426 1029
427void 1030void ecb_cold
428ev_set_syserr_cb (void (*cb)(const char *msg)) 1031ev_set_syserr_cb (void (*cb)(const char *msg))
429{ 1032{
430 syserr_cb = cb; 1033 syserr_cb = cb;
431} 1034}
432 1035
433static void noinline 1036static void noinline ecb_cold
434ev_syserr (const char *msg) 1037ev_syserr (const char *msg)
435{ 1038{
436 if (!msg) 1039 if (!msg)
437 msg = "(libev) system error"; 1040 msg = "(libev) system error";
438 1041
439 if (syserr_cb) 1042 if (syserr_cb)
440 syserr_cb (msg); 1043 syserr_cb (msg);
441 else 1044 else
442 { 1045 {
1046#if EV_AVOID_STDIO
1047 ev_printerr (msg);
1048 ev_printerr (": ");
1049 ev_printerr (strerror (errno));
1050 ev_printerr ("\n");
1051#else
443 perror (msg); 1052 perror (msg);
1053#endif
444 abort (); 1054 abort ();
445 } 1055 }
446} 1056}
447 1057
448static void * 1058static void *
449ev_realloc_emul (void *ptr, long size) 1059ev_realloc_emul (void *ptr, long size)
450{ 1060{
1061#if __GLIBC__
1062 return realloc (ptr, size);
1063#else
451 /* some systems, notably openbsd and darwin, fail to properly 1064 /* some systems, notably openbsd and darwin, fail to properly
452 * implement realloc (x, 0) (as required by both ansi c-98 and 1065 * implement realloc (x, 0) (as required by both ansi c-89 and
453 * the single unix specification, so work around them here. 1066 * the single unix specification, so work around them here.
454 */ 1067 */
455 1068
456 if (size) 1069 if (size)
457 return realloc (ptr, size); 1070 return realloc (ptr, size);
458 1071
459 free (ptr); 1072 free (ptr);
460 return 0; 1073 return 0;
1074#endif
461} 1075}
462 1076
463static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1077static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
464 1078
465void 1079void ecb_cold
466ev_set_allocator (void *(*cb)(void *ptr, long size)) 1080ev_set_allocator (void *(*cb)(void *ptr, long size))
467{ 1081{
468 alloc = cb; 1082 alloc = cb;
469} 1083}
470 1084
… …
473{ 1087{
474 ptr = alloc (ptr, size); 1088 ptr = alloc (ptr, size);
475 1089
476 if (!ptr && size) 1090 if (!ptr && size)
477 { 1091 {
1092#if EV_AVOID_STDIO
1093 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1094#else
478 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1095 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1096#endif
479 abort (); 1097 abort ();
480 } 1098 }
481 1099
482 return ptr; 1100 return ptr;
483} 1101}
… …
485#define ev_malloc(size) ev_realloc (0, (size)) 1103#define ev_malloc(size) ev_realloc (0, (size))
486#define ev_free(ptr) ev_realloc ((ptr), 0) 1104#define ev_free(ptr) ev_realloc ((ptr), 0)
487 1105
488/*****************************************************************************/ 1106/*****************************************************************************/
489 1107
1108/* set in reify when reification needed */
1109#define EV_ANFD_REIFY 1
1110
490/* file descriptor info structure */ 1111/* file descriptor info structure */
491typedef struct 1112typedef struct
492{ 1113{
493 WL head; 1114 WL head;
494 unsigned char events; /* the events watched for */ 1115 unsigned char events; /* the events watched for */
495 unsigned char reify; /* flag set when this ANFD needs reification */ 1116 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
496 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1117 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
497 unsigned char unused; 1118 unsigned char unused;
498#if EV_USE_EPOLL 1119#if EV_USE_EPOLL
499 unsigned int egen; /* generation counter to counter epoll bugs */ 1120 unsigned int egen; /* generation counter to counter epoll bugs */
500#endif 1121#endif
501#if EV_SELECT_IS_WINSOCKET 1122#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
502 SOCKET handle; 1123 SOCKET handle;
1124#endif
1125#if EV_USE_IOCP
1126 OVERLAPPED or, ow;
503#endif 1127#endif
504} ANFD; 1128} ANFD;
505 1129
506/* stores the pending event set for a given watcher */ 1130/* stores the pending event set for a given watcher */
507typedef struct 1131typedef struct
… …
562 1186
563 static int ev_default_loop_ptr; 1187 static int ev_default_loop_ptr;
564 1188
565#endif 1189#endif
566 1190
1191#if EV_FEATURE_API
1192# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
1193# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
1194# define EV_INVOKE_PENDING invoke_cb (EV_A)
1195#else
1196# define EV_RELEASE_CB (void)0
1197# define EV_ACQUIRE_CB (void)0
1198# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
1199#endif
1200
1201#define EVBREAK_RECURSE 0x80
1202
567/*****************************************************************************/ 1203/*****************************************************************************/
568 1204
569#ifndef EV_HAVE_EV_TIME 1205#ifndef EV_HAVE_EV_TIME
570ev_tstamp 1206ev_tstamp
571ev_time (void) 1207ev_time (void)
… …
614 if (delay > 0.) 1250 if (delay > 0.)
615 { 1251 {
616#if EV_USE_NANOSLEEP 1252#if EV_USE_NANOSLEEP
617 struct timespec ts; 1253 struct timespec ts;
618 1254
619 ts.tv_sec = (time_t)delay; 1255 EV_TS_SET (ts, delay);
620 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
621
622 nanosleep (&ts, 0); 1256 nanosleep (&ts, 0);
623#elif defined(_WIN32) 1257#elif defined(_WIN32)
624 Sleep ((unsigned long)(delay * 1e3)); 1258 Sleep ((unsigned long)(delay * 1e3));
625#else 1259#else
626 struct timeval tv; 1260 struct timeval tv;
627 1261
628 tv.tv_sec = (time_t)delay;
629 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
630
631 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1262 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
632 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 1263 /* something not guaranteed by newer posix versions, but guaranteed */
633 /* by older ones */ 1264 /* by older ones */
1265 EV_TV_SET (tv, delay);
634 select (0, 0, 0, 0, &tv); 1266 select (0, 0, 0, 0, &tv);
635#endif 1267#endif
636 } 1268 }
637} 1269}
638 1270
639/*****************************************************************************/ 1271/*****************************************************************************/
640 1272
641#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1273#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
642 1274
643/* find a suitable new size for the given array, */ 1275/* find a suitable new size for the given array, */
644/* hopefully by rounding to a ncie-to-malloc size */ 1276/* hopefully by rounding to a nice-to-malloc size */
645inline_size int 1277inline_size int
646array_nextsize (int elem, int cur, int cnt) 1278array_nextsize (int elem, int cur, int cnt)
647{ 1279{
648 int ncur = cur + 1; 1280 int ncur = cur + 1;
649 1281
… …
661 } 1293 }
662 1294
663 return ncur; 1295 return ncur;
664} 1296}
665 1297
666static noinline void * 1298static void * noinline ecb_cold
667array_realloc (int elem, void *base, int *cur, int cnt) 1299array_realloc (int elem, void *base, int *cur, int cnt)
668{ 1300{
669 *cur = array_nextsize (elem, *cur, cnt); 1301 *cur = array_nextsize (elem, *cur, cnt);
670 return ev_realloc (base, elem * *cur); 1302 return ev_realloc (base, elem * *cur);
671} 1303}
… …
674 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1306 memset ((void *)(base), 0, sizeof (*(base)) * (count))
675 1307
676#define array_needsize(type,base,cur,cnt,init) \ 1308#define array_needsize(type,base,cur,cnt,init) \
677 if (expect_false ((cnt) > (cur))) \ 1309 if (expect_false ((cnt) > (cur))) \
678 { \ 1310 { \
679 int ocur_ = (cur); \ 1311 int ecb_unused ocur_ = (cur); \
680 (base) = (type *)array_realloc \ 1312 (base) = (type *)array_realloc \
681 (sizeof (type), (base), &(cur), (cnt)); \ 1313 (sizeof (type), (base), &(cur), (cnt)); \
682 init ((base) + (ocur_), (cur) - ocur_); \ 1314 init ((base) + (ocur_), (cur) - ocur_); \
683 } 1315 }
684 1316
… …
745} 1377}
746 1378
747/*****************************************************************************/ 1379/*****************************************************************************/
748 1380
749inline_speed void 1381inline_speed void
750fd_event (EV_P_ int fd, int revents) 1382fd_event_nocheck (EV_P_ int fd, int revents)
751{ 1383{
752 ANFD *anfd = anfds + fd; 1384 ANFD *anfd = anfds + fd;
753 ev_io *w; 1385 ev_io *w;
754 1386
755 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1387 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
759 if (ev) 1391 if (ev)
760 ev_feed_event (EV_A_ (W)w, ev); 1392 ev_feed_event (EV_A_ (W)w, ev);
761 } 1393 }
762} 1394}
763 1395
1396/* do not submit kernel events for fds that have reify set */
1397/* because that means they changed while we were polling for new events */
1398inline_speed void
1399fd_event (EV_P_ int fd, int revents)
1400{
1401 ANFD *anfd = anfds + fd;
1402
1403 if (expect_true (!anfd->reify))
1404 fd_event_nocheck (EV_A_ fd, revents);
1405}
1406
764void 1407void
765ev_feed_fd_event (EV_P_ int fd, int revents) 1408ev_feed_fd_event (EV_P_ int fd, int revents)
766{ 1409{
767 if (fd >= 0 && fd < anfdmax) 1410 if (fd >= 0 && fd < anfdmax)
768 fd_event (EV_A_ fd, revents); 1411 fd_event_nocheck (EV_A_ fd, revents);
769} 1412}
770 1413
771/* make sure the external fd watch events are in-sync */ 1414/* make sure the external fd watch events are in-sync */
772/* with the kernel/libev internal state */ 1415/* with the kernel/libev internal state */
773inline_size void 1416inline_size void
774fd_reify (EV_P) 1417fd_reify (EV_P)
775{ 1418{
776 int i; 1419 int i;
777 1420
1421#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1422 for (i = 0; i < fdchangecnt; ++i)
1423 {
1424 int fd = fdchanges [i];
1425 ANFD *anfd = anfds + fd;
1426
1427 if (anfd->reify & EV__IOFDSET && anfd->head)
1428 {
1429 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1430
1431 if (handle != anfd->handle)
1432 {
1433 unsigned long arg;
1434
1435 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1436
1437 /* handle changed, but fd didn't - we need to do it in two steps */
1438 backend_modify (EV_A_ fd, anfd->events, 0);
1439 anfd->events = 0;
1440 anfd->handle = handle;
1441 }
1442 }
1443 }
1444#endif
1445
778 for (i = 0; i < fdchangecnt; ++i) 1446 for (i = 0; i < fdchangecnt; ++i)
779 { 1447 {
780 int fd = fdchanges [i]; 1448 int fd = fdchanges [i];
781 ANFD *anfd = anfds + fd; 1449 ANFD *anfd = anfds + fd;
782 ev_io *w; 1450 ev_io *w;
783 1451
784 unsigned char events = 0; 1452 unsigned char o_events = anfd->events;
1453 unsigned char o_reify = anfd->reify;
785 1454
786 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1455 anfd->reify = 0;
787 events |= (unsigned char)w->events;
788 1456
789#if EV_SELECT_IS_WINSOCKET 1457 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
790 if (events)
791 { 1458 {
792 unsigned long arg; 1459 anfd->events = 0;
793 #ifdef EV_FD_TO_WIN32_HANDLE 1460
794 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1461 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
795 #else 1462 anfd->events |= (unsigned char)w->events;
796 anfd->handle = _get_osfhandle (fd); 1463
797 #endif 1464 if (o_events != anfd->events)
798 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1465 o_reify = EV__IOFDSET; /* actually |= */
799 } 1466 }
800#endif
801 1467
802 { 1468 if (o_reify & EV__IOFDSET)
803 unsigned char o_events = anfd->events;
804 unsigned char o_reify = anfd->reify;
805
806 anfd->reify = 0;
807 anfd->events = events;
808
809 if (o_events != events || o_reify & EV__IOFDSET)
810 backend_modify (EV_A_ fd, o_events, events); 1469 backend_modify (EV_A_ fd, o_events, anfd->events);
811 }
812 } 1470 }
813 1471
814 fdchangecnt = 0; 1472 fdchangecnt = 0;
815} 1473}
816 1474
… …
828 fdchanges [fdchangecnt - 1] = fd; 1486 fdchanges [fdchangecnt - 1] = fd;
829 } 1487 }
830} 1488}
831 1489
832/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1490/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
833inline_speed void 1491inline_speed void ecb_cold
834fd_kill (EV_P_ int fd) 1492fd_kill (EV_P_ int fd)
835{ 1493{
836 ev_io *w; 1494 ev_io *w;
837 1495
838 while ((w = (ev_io *)anfds [fd].head)) 1496 while ((w = (ev_io *)anfds [fd].head))
… …
840 ev_io_stop (EV_A_ w); 1498 ev_io_stop (EV_A_ w);
841 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1499 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
842 } 1500 }
843} 1501}
844 1502
845/* check whether the given fd is atcually valid, for error recovery */ 1503/* check whether the given fd is actually valid, for error recovery */
846inline_size int 1504inline_size int ecb_cold
847fd_valid (int fd) 1505fd_valid (int fd)
848{ 1506{
849#ifdef _WIN32 1507#ifdef _WIN32
850 return _get_osfhandle (fd) != -1; 1508 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
851#else 1509#else
852 return fcntl (fd, F_GETFD) != -1; 1510 return fcntl (fd, F_GETFD) != -1;
853#endif 1511#endif
854} 1512}
855 1513
856/* called on EBADF to verify fds */ 1514/* called on EBADF to verify fds */
857static void noinline 1515static void noinline ecb_cold
858fd_ebadf (EV_P) 1516fd_ebadf (EV_P)
859{ 1517{
860 int fd; 1518 int fd;
861 1519
862 for (fd = 0; fd < anfdmax; ++fd) 1520 for (fd = 0; fd < anfdmax; ++fd)
… …
864 if (!fd_valid (fd) && errno == EBADF) 1522 if (!fd_valid (fd) && errno == EBADF)
865 fd_kill (EV_A_ fd); 1523 fd_kill (EV_A_ fd);
866} 1524}
867 1525
868/* called on ENOMEM in select/poll to kill some fds and retry */ 1526/* called on ENOMEM in select/poll to kill some fds and retry */
869static void noinline 1527static void noinline ecb_cold
870fd_enomem (EV_P) 1528fd_enomem (EV_P)
871{ 1529{
872 int fd; 1530 int fd;
873 1531
874 for (fd = anfdmax; fd--; ) 1532 for (fd = anfdmax; fd--; )
875 if (anfds [fd].events) 1533 if (anfds [fd].events)
876 { 1534 {
877 fd_kill (EV_A_ fd); 1535 fd_kill (EV_A_ fd);
878 return; 1536 break;
879 } 1537 }
880} 1538}
881 1539
882/* usually called after fork if backend needs to re-arm all fds from scratch */ 1540/* usually called after fork if backend needs to re-arm all fds from scratch */
883static void noinline 1541static void noinline
… …
888 for (fd = 0; fd < anfdmax; ++fd) 1546 for (fd = 0; fd < anfdmax; ++fd)
889 if (anfds [fd].events) 1547 if (anfds [fd].events)
890 { 1548 {
891 anfds [fd].events = 0; 1549 anfds [fd].events = 0;
892 anfds [fd].emask = 0; 1550 anfds [fd].emask = 0;
893 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1551 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
894 } 1552 }
895} 1553}
896 1554
1555/* used to prepare libev internal fd's */
1556/* this is not fork-safe */
1557inline_speed void
1558fd_intern (int fd)
1559{
1560#ifdef _WIN32
1561 unsigned long arg = 1;
1562 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1563#else
1564 fcntl (fd, F_SETFD, FD_CLOEXEC);
1565 fcntl (fd, F_SETFL, O_NONBLOCK);
1566#endif
1567}
1568
897/*****************************************************************************/ 1569/*****************************************************************************/
898 1570
899/* 1571/*
900 * the heap functions want a real array index. array index 0 uis guaranteed to not 1572 * the heap functions want a real array index. array index 0 is guaranteed to not
901 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1573 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
902 * the branching factor of the d-tree. 1574 * the branching factor of the d-tree.
903 */ 1575 */
904 1576
905/* 1577/*
… …
973 1645
974 for (;;) 1646 for (;;)
975 { 1647 {
976 int c = k << 1; 1648 int c = k << 1;
977 1649
978 if (c > N + HEAP0 - 1) 1650 if (c >= N + HEAP0)
979 break; 1651 break;
980 1652
981 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1653 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
982 ? 1 : 0; 1654 ? 1 : 0;
983 1655
… …
1019 1691
1020/* move an element suitably so it is in a correct place */ 1692/* move an element suitably so it is in a correct place */
1021inline_size void 1693inline_size void
1022adjustheap (ANHE *heap, int N, int k) 1694adjustheap (ANHE *heap, int N, int k)
1023{ 1695{
1024 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1696 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1025 upheap (heap, k); 1697 upheap (heap, k);
1026 else 1698 else
1027 downheap (heap, N, k); 1699 downheap (heap, N, k);
1028} 1700}
1029 1701
… …
1042/*****************************************************************************/ 1714/*****************************************************************************/
1043 1715
1044/* associate signal watchers to a signal signal */ 1716/* associate signal watchers to a signal signal */
1045typedef struct 1717typedef struct
1046{ 1718{
1719 EV_ATOMIC_T pending;
1720#if EV_MULTIPLICITY
1721 EV_P;
1722#endif
1047 WL head; 1723 WL head;
1048 EV_ATOMIC_T gotsig;
1049} ANSIG; 1724} ANSIG;
1050 1725
1051static ANSIG *signals; 1726static ANSIG signals [EV_NSIG - 1];
1052static int signalmax;
1053
1054static EV_ATOMIC_T gotsig;
1055 1727
1056/*****************************************************************************/ 1728/*****************************************************************************/
1057 1729
1058/* used to prepare libev internal fd's */ 1730#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1059/* this is not fork-safe */
1060inline_speed void
1061fd_intern (int fd)
1062{
1063#ifdef _WIN32
1064 unsigned long arg = 1;
1065 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1066#else
1067 fcntl (fd, F_SETFD, FD_CLOEXEC);
1068 fcntl (fd, F_SETFL, O_NONBLOCK);
1069#endif
1070}
1071 1731
1072static void noinline 1732static void noinline ecb_cold
1073evpipe_init (EV_P) 1733evpipe_init (EV_P)
1074{ 1734{
1075 if (!ev_is_active (&pipe_w)) 1735 if (!ev_is_active (&pipe_w))
1076 { 1736 {
1077#if EV_USE_EVENTFD 1737# if EV_USE_EVENTFD
1738 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1739 if (evfd < 0 && errno == EINVAL)
1078 if ((evfd = eventfd (0, 0)) >= 0) 1740 evfd = eventfd (0, 0);
1741
1742 if (evfd >= 0)
1079 { 1743 {
1080 evpipe [0] = -1; 1744 evpipe [0] = -1;
1081 fd_intern (evfd); 1745 fd_intern (evfd); /* doing it twice doesn't hurt */
1082 ev_io_set (&pipe_w, evfd, EV_READ); 1746 ev_io_set (&pipe_w, evfd, EV_READ);
1083 } 1747 }
1084 else 1748 else
1085#endif 1749# endif
1086 { 1750 {
1087 while (pipe (evpipe)) 1751 while (pipe (evpipe))
1088 ev_syserr ("(libev) error creating signal/async pipe"); 1752 ev_syserr ("(libev) error creating signal/async pipe");
1089 1753
1090 fd_intern (evpipe [0]); 1754 fd_intern (evpipe [0]);
… …
1095 ev_io_start (EV_A_ &pipe_w); 1759 ev_io_start (EV_A_ &pipe_w);
1096 ev_unref (EV_A); /* watcher should not keep loop alive */ 1760 ev_unref (EV_A); /* watcher should not keep loop alive */
1097 } 1761 }
1098} 1762}
1099 1763
1100inline_size void 1764inline_speed void
1101evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1765evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1102{ 1766{
1103 if (!*flag) 1767 if (expect_true (*flag))
1768 return;
1769
1770 *flag = 1;
1771
1772 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1773
1774 pipe_write_skipped = 1;
1775
1776 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1777
1778 if (pipe_write_wanted)
1104 { 1779 {
1780 int old_errno;
1781
1782 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1783
1105 int old_errno = errno; /* save errno because write might clobber it */ 1784 old_errno = errno; /* save errno because write will clobber it */
1106
1107 *flag = 1;
1108 1785
1109#if EV_USE_EVENTFD 1786#if EV_USE_EVENTFD
1110 if (evfd >= 0) 1787 if (evfd >= 0)
1111 { 1788 {
1112 uint64_t counter = 1; 1789 uint64_t counter = 1;
1113 write (evfd, &counter, sizeof (uint64_t)); 1790 write (evfd, &counter, sizeof (uint64_t));
1114 } 1791 }
1115 else 1792 else
1116#endif 1793#endif
1794 {
1795 /* win32 people keep sending patches that change this write() to send() */
1796 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1797 /* so when you think this write should be a send instead, please find out */
1798 /* where your send() is from - it's definitely not the microsoft send, and */
1799 /* tell me. thank you. */
1117 write (evpipe [1], &old_errno, 1); 1800 write (evpipe [1], &(evpipe [1]), 1);
1801 }
1118 1802
1119 errno = old_errno; 1803 errno = old_errno;
1120 } 1804 }
1121} 1805}
1122 1806
1123/* called whenever the libev signal pipe */ 1807/* called whenever the libev signal pipe */
1124/* got some events (signal, async) */ 1808/* got some events (signal, async) */
1125static void 1809static void
1126pipecb (EV_P_ ev_io *iow, int revents) 1810pipecb (EV_P_ ev_io *iow, int revents)
1127{ 1811{
1812 int i;
1813
1814 if (revents & EV_READ)
1815 {
1128#if EV_USE_EVENTFD 1816#if EV_USE_EVENTFD
1129 if (evfd >= 0) 1817 if (evfd >= 0)
1130 { 1818 {
1131 uint64_t counter; 1819 uint64_t counter;
1132 read (evfd, &counter, sizeof (uint64_t)); 1820 read (evfd, &counter, sizeof (uint64_t));
1133 } 1821 }
1134 else 1822 else
1135#endif 1823#endif
1136 { 1824 {
1137 char dummy; 1825 char dummy;
1826 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1138 read (evpipe [0], &dummy, 1); 1827 read (evpipe [0], &dummy, 1);
1828 }
1829 }
1830
1831 pipe_write_skipped = 0;
1832
1833#if EV_SIGNAL_ENABLE
1834 if (sig_pending)
1139 } 1835 {
1836 sig_pending = 0;
1140 1837
1141 if (gotsig && ev_is_default_loop (EV_A)) 1838 for (i = EV_NSIG - 1; i--; )
1142 { 1839 if (expect_false (signals [i].pending))
1143 int signum;
1144 gotsig = 0;
1145
1146 for (signum = signalmax; signum--; )
1147 if (signals [signum].gotsig)
1148 ev_feed_signal_event (EV_A_ signum + 1); 1840 ev_feed_signal_event (EV_A_ i + 1);
1149 } 1841 }
1842#endif
1150 1843
1151#if EV_ASYNC_ENABLE 1844#if EV_ASYNC_ENABLE
1152 if (gotasync) 1845 if (async_pending)
1153 { 1846 {
1154 int i; 1847 async_pending = 0;
1155 gotasync = 0;
1156 1848
1157 for (i = asynccnt; i--; ) 1849 for (i = asynccnt; i--; )
1158 if (asyncs [i]->sent) 1850 if (asyncs [i]->sent)
1159 { 1851 {
1160 asyncs [i]->sent = 0; 1852 asyncs [i]->sent = 0;
… …
1164#endif 1856#endif
1165} 1857}
1166 1858
1167/*****************************************************************************/ 1859/*****************************************************************************/
1168 1860
1861void
1862ev_feed_signal (int signum)
1863{
1864#if EV_MULTIPLICITY
1865 EV_P = signals [signum - 1].loop;
1866
1867 if (!EV_A)
1868 return;
1869#endif
1870
1871 if (!ev_active (&pipe_w))
1872 return;
1873
1874 signals [signum - 1].pending = 1;
1875 evpipe_write (EV_A_ &sig_pending);
1876}
1877
1169static void 1878static void
1170ev_sighandler (int signum) 1879ev_sighandler (int signum)
1171{ 1880{
1172#if EV_MULTIPLICITY
1173 struct ev_loop *loop = &default_loop_struct;
1174#endif
1175
1176#if _WIN32 1881#ifdef _WIN32
1177 signal (signum, ev_sighandler); 1882 signal (signum, ev_sighandler);
1178#endif 1883#endif
1179 1884
1180 signals [signum - 1].gotsig = 1; 1885 ev_feed_signal (signum);
1181 evpipe_write (EV_A_ &gotsig);
1182} 1886}
1183 1887
1184void noinline 1888void noinline
1185ev_feed_signal_event (EV_P_ int signum) 1889ev_feed_signal_event (EV_P_ int signum)
1186{ 1890{
1187 WL w; 1891 WL w;
1188 1892
1893 if (expect_false (signum <= 0 || signum > EV_NSIG))
1894 return;
1895
1896 --signum;
1897
1189#if EV_MULTIPLICITY 1898#if EV_MULTIPLICITY
1190 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1899 /* it is permissible to try to feed a signal to the wrong loop */
1191#endif 1900 /* or, likely more useful, feeding a signal nobody is waiting for */
1192 1901
1193 --signum; 1902 if (expect_false (signals [signum].loop != EV_A))
1194
1195 if (signum < 0 || signum >= signalmax)
1196 return; 1903 return;
1904#endif
1197 1905
1198 signals [signum].gotsig = 0; 1906 signals [signum].pending = 0;
1199 1907
1200 for (w = signals [signum].head; w; w = w->next) 1908 for (w = signals [signum].head; w; w = w->next)
1201 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1909 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1202} 1910}
1203 1911
1912#if EV_USE_SIGNALFD
1913static void
1914sigfdcb (EV_P_ ev_io *iow, int revents)
1915{
1916 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1917
1918 for (;;)
1919 {
1920 ssize_t res = read (sigfd, si, sizeof (si));
1921
1922 /* not ISO-C, as res might be -1, but works with SuS */
1923 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1924 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1925
1926 if (res < (ssize_t)sizeof (si))
1927 break;
1928 }
1929}
1930#endif
1931
1932#endif
1933
1204/*****************************************************************************/ 1934/*****************************************************************************/
1205 1935
1936#if EV_CHILD_ENABLE
1206static WL childs [EV_PID_HASHSIZE]; 1937static WL childs [EV_PID_HASHSIZE];
1207
1208#ifndef _WIN32
1209 1938
1210static ev_signal childev; 1939static ev_signal childev;
1211 1940
1212#ifndef WIFCONTINUED 1941#ifndef WIFCONTINUED
1213# define WIFCONTINUED(status) 0 1942# define WIFCONTINUED(status) 0
… …
1218child_reap (EV_P_ int chain, int pid, int status) 1947child_reap (EV_P_ int chain, int pid, int status)
1219{ 1948{
1220 ev_child *w; 1949 ev_child *w;
1221 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1950 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1222 1951
1223 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1952 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1224 { 1953 {
1225 if ((w->pid == pid || !w->pid) 1954 if ((w->pid == pid || !w->pid)
1226 && (!traced || (w->flags & 1))) 1955 && (!traced || (w->flags & 1)))
1227 { 1956 {
1228 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1957 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1253 /* make sure we are called again until all children have been reaped */ 1982 /* make sure we are called again until all children have been reaped */
1254 /* we need to do it this way so that the callback gets called before we continue */ 1983 /* we need to do it this way so that the callback gets called before we continue */
1255 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1984 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1256 1985
1257 child_reap (EV_A_ pid, pid, status); 1986 child_reap (EV_A_ pid, pid, status);
1258 if (EV_PID_HASHSIZE > 1) 1987 if ((EV_PID_HASHSIZE) > 1)
1259 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1988 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1260} 1989}
1261 1990
1262#endif 1991#endif
1263 1992
1264/*****************************************************************************/ 1993/*****************************************************************************/
1265 1994
1995#if EV_USE_IOCP
1996# include "ev_iocp.c"
1997#endif
1266#if EV_USE_PORT 1998#if EV_USE_PORT
1267# include "ev_port.c" 1999# include "ev_port.c"
1268#endif 2000#endif
1269#if EV_USE_KQUEUE 2001#if EV_USE_KQUEUE
1270# include "ev_kqueue.c" 2002# include "ev_kqueue.c"
… …
1277#endif 2009#endif
1278#if EV_USE_SELECT 2010#if EV_USE_SELECT
1279# include "ev_select.c" 2011# include "ev_select.c"
1280#endif 2012#endif
1281 2013
1282int 2014int ecb_cold
1283ev_version_major (void) 2015ev_version_major (void)
1284{ 2016{
1285 return EV_VERSION_MAJOR; 2017 return EV_VERSION_MAJOR;
1286} 2018}
1287 2019
1288int 2020int ecb_cold
1289ev_version_minor (void) 2021ev_version_minor (void)
1290{ 2022{
1291 return EV_VERSION_MINOR; 2023 return EV_VERSION_MINOR;
1292} 2024}
1293 2025
1294/* return true if we are running with elevated privileges and should ignore env variables */ 2026/* return true if we are running with elevated privileges and should ignore env variables */
1295int inline_size 2027int inline_size ecb_cold
1296enable_secure (void) 2028enable_secure (void)
1297{ 2029{
1298#ifdef _WIN32 2030#ifdef _WIN32
1299 return 0; 2031 return 0;
1300#else 2032#else
1301 return getuid () != geteuid () 2033 return getuid () != geteuid ()
1302 || getgid () != getegid (); 2034 || getgid () != getegid ();
1303#endif 2035#endif
1304} 2036}
1305 2037
1306unsigned int 2038unsigned int ecb_cold
1307ev_supported_backends (void) 2039ev_supported_backends (void)
1308{ 2040{
1309 unsigned int flags = 0; 2041 unsigned int flags = 0;
1310 2042
1311 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2043 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1315 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2047 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1316 2048
1317 return flags; 2049 return flags;
1318} 2050}
1319 2051
1320unsigned int 2052unsigned int ecb_cold
1321ev_recommended_backends (void) 2053ev_recommended_backends (void)
1322{ 2054{
1323 unsigned int flags = ev_supported_backends (); 2055 unsigned int flags = ev_supported_backends ();
1324 2056
1325#ifndef __NetBSD__ 2057#ifndef __NetBSD__
… …
1330#ifdef __APPLE__ 2062#ifdef __APPLE__
1331 /* only select works correctly on that "unix-certified" platform */ 2063 /* only select works correctly on that "unix-certified" platform */
1332 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2064 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1333 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2065 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1334#endif 2066#endif
2067#ifdef __FreeBSD__
2068 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2069#endif
1335 2070
1336 return flags; 2071 return flags;
1337} 2072}
1338 2073
1339unsigned int 2074unsigned int ecb_cold
1340ev_embeddable_backends (void) 2075ev_embeddable_backends (void)
1341{ 2076{
1342 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2077 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1343 2078
1344 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2079 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1345 /* please fix it and tell me how to detect the fix */ 2080 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1346 flags &= ~EVBACKEND_EPOLL; 2081 flags &= ~EVBACKEND_EPOLL;
1347 2082
1348 return flags; 2083 return flags;
1349} 2084}
1350 2085
1351unsigned int 2086unsigned int
1352ev_backend (EV_P) 2087ev_backend (EV_P)
1353{ 2088{
1354 return backend; 2089 return backend;
1355} 2090}
1356 2091
2092#if EV_FEATURE_API
1357unsigned int 2093unsigned int
1358ev_loop_count (EV_P) 2094ev_iteration (EV_P)
1359{ 2095{
1360 return loop_count; 2096 return loop_count;
2097}
2098
2099unsigned int
2100ev_depth (EV_P)
2101{
2102 return loop_depth;
1361} 2103}
1362 2104
1363void 2105void
1364ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2106ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1365{ 2107{
… …
1370ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2112ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1371{ 2113{
1372 timeout_blocktime = interval; 2114 timeout_blocktime = interval;
1373} 2115}
1374 2116
2117void
2118ev_set_userdata (EV_P_ void *data)
2119{
2120 userdata = data;
2121}
2122
2123void *
2124ev_userdata (EV_P)
2125{
2126 return userdata;
2127}
2128
2129void
2130ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
2131{
2132 invoke_cb = invoke_pending_cb;
2133}
2134
2135void
2136ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
2137{
2138 release_cb = release;
2139 acquire_cb = acquire;
2140}
2141#endif
2142
1375/* initialise a loop structure, must be zero-initialised */ 2143/* initialise a loop structure, must be zero-initialised */
1376static void noinline 2144static void noinline ecb_cold
1377loop_init (EV_P_ unsigned int flags) 2145loop_init (EV_P_ unsigned int flags)
1378{ 2146{
1379 if (!backend) 2147 if (!backend)
1380 { 2148 {
2149 origflags = flags;
2150
1381#if EV_USE_REALTIME 2151#if EV_USE_REALTIME
1382 if (!have_realtime) 2152 if (!have_realtime)
1383 { 2153 {
1384 struct timespec ts; 2154 struct timespec ts;
1385 2155
… …
1396 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2166 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1397 have_monotonic = 1; 2167 have_monotonic = 1;
1398 } 2168 }
1399#endif 2169#endif
1400 2170
1401 ev_rt_now = ev_time ();
1402 mn_now = get_clock ();
1403 now_floor = mn_now;
1404 rtmn_diff = ev_rt_now - mn_now;
1405
1406 io_blocktime = 0.;
1407 timeout_blocktime = 0.;
1408 backend = 0;
1409 backend_fd = -1;
1410 gotasync = 0;
1411#if EV_USE_INOTIFY
1412 fs_fd = -2;
1413#endif
1414
1415 /* pid check not overridable via env */ 2171 /* pid check not overridable via env */
1416#ifndef _WIN32 2172#ifndef _WIN32
1417 if (flags & EVFLAG_FORKCHECK) 2173 if (flags & EVFLAG_FORKCHECK)
1418 curpid = getpid (); 2174 curpid = getpid ();
1419#endif 2175#endif
… …
1421 if (!(flags & EVFLAG_NOENV) 2177 if (!(flags & EVFLAG_NOENV)
1422 && !enable_secure () 2178 && !enable_secure ()
1423 && getenv ("LIBEV_FLAGS")) 2179 && getenv ("LIBEV_FLAGS"))
1424 flags = atoi (getenv ("LIBEV_FLAGS")); 2180 flags = atoi (getenv ("LIBEV_FLAGS"));
1425 2181
1426 if (!(flags & 0x0000ffffU)) 2182 ev_rt_now = ev_time ();
2183 mn_now = get_clock ();
2184 now_floor = mn_now;
2185 rtmn_diff = ev_rt_now - mn_now;
2186#if EV_FEATURE_API
2187 invoke_cb = ev_invoke_pending;
2188#endif
2189
2190 io_blocktime = 0.;
2191 timeout_blocktime = 0.;
2192 backend = 0;
2193 backend_fd = -1;
2194 sig_pending = 0;
2195#if EV_ASYNC_ENABLE
2196 async_pending = 0;
2197#endif
2198 pipe_write_skipped = 0;
2199 pipe_write_wanted = 0;
2200#if EV_USE_INOTIFY
2201 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2202#endif
2203#if EV_USE_SIGNALFD
2204 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2205#endif
2206
2207 if (!(flags & EVBACKEND_MASK))
1427 flags |= ev_recommended_backends (); 2208 flags |= ev_recommended_backends ();
1428 2209
2210#if EV_USE_IOCP
2211 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2212#endif
1429#if EV_USE_PORT 2213#if EV_USE_PORT
1430 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2214 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1431#endif 2215#endif
1432#if EV_USE_KQUEUE 2216#if EV_USE_KQUEUE
1433 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2217 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1442 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2226 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1443#endif 2227#endif
1444 2228
1445 ev_prepare_init (&pending_w, pendingcb); 2229 ev_prepare_init (&pending_w, pendingcb);
1446 2230
2231#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1447 ev_init (&pipe_w, pipecb); 2232 ev_init (&pipe_w, pipecb);
1448 ev_set_priority (&pipe_w, EV_MAXPRI); 2233 ev_set_priority (&pipe_w, EV_MAXPRI);
2234#endif
1449 } 2235 }
1450} 2236}
1451 2237
1452/* free up a loop structure */ 2238/* free up a loop structure */
1453static void noinline 2239void ecb_cold
1454loop_destroy (EV_P) 2240ev_loop_destroy (EV_P)
1455{ 2241{
1456 int i; 2242 int i;
1457 2243
2244#if EV_MULTIPLICITY
2245 /* mimic free (0) */
2246 if (!EV_A)
2247 return;
2248#endif
2249
2250#if EV_CLEANUP_ENABLE
2251 /* queue cleanup watchers (and execute them) */
2252 if (expect_false (cleanupcnt))
2253 {
2254 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2255 EV_INVOKE_PENDING;
2256 }
2257#endif
2258
2259#if EV_CHILD_ENABLE
2260 if (ev_is_active (&childev))
2261 {
2262 ev_ref (EV_A); /* child watcher */
2263 ev_signal_stop (EV_A_ &childev);
2264 }
2265#endif
2266
1458 if (ev_is_active (&pipe_w)) 2267 if (ev_is_active (&pipe_w))
1459 { 2268 {
1460 ev_ref (EV_A); /* signal watcher */ 2269 /*ev_ref (EV_A);*/
1461 ev_io_stop (EV_A_ &pipe_w); 2270 /*ev_io_stop (EV_A_ &pipe_w);*/
1462 2271
1463#if EV_USE_EVENTFD 2272#if EV_USE_EVENTFD
1464 if (evfd >= 0) 2273 if (evfd >= 0)
1465 close (evfd); 2274 close (evfd);
1466#endif 2275#endif
1467 2276
1468 if (evpipe [0] >= 0) 2277 if (evpipe [0] >= 0)
1469 { 2278 {
1470 close (evpipe [0]); 2279 EV_WIN32_CLOSE_FD (evpipe [0]);
1471 close (evpipe [1]); 2280 EV_WIN32_CLOSE_FD (evpipe [1]);
1472 } 2281 }
1473 } 2282 }
2283
2284#if EV_USE_SIGNALFD
2285 if (ev_is_active (&sigfd_w))
2286 close (sigfd);
2287#endif
1474 2288
1475#if EV_USE_INOTIFY 2289#if EV_USE_INOTIFY
1476 if (fs_fd >= 0) 2290 if (fs_fd >= 0)
1477 close (fs_fd); 2291 close (fs_fd);
1478#endif 2292#endif
1479 2293
1480 if (backend_fd >= 0) 2294 if (backend_fd >= 0)
1481 close (backend_fd); 2295 close (backend_fd);
1482 2296
2297#if EV_USE_IOCP
2298 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2299#endif
1483#if EV_USE_PORT 2300#if EV_USE_PORT
1484 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2301 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1485#endif 2302#endif
1486#if EV_USE_KQUEUE 2303#if EV_USE_KQUEUE
1487 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2304 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1502#if EV_IDLE_ENABLE 2319#if EV_IDLE_ENABLE
1503 array_free (idle, [i]); 2320 array_free (idle, [i]);
1504#endif 2321#endif
1505 } 2322 }
1506 2323
1507 ev_free (anfds); anfdmax = 0; 2324 ev_free (anfds); anfds = 0; anfdmax = 0;
1508 2325
1509 /* have to use the microsoft-never-gets-it-right macro */ 2326 /* have to use the microsoft-never-gets-it-right macro */
1510 array_free (rfeed, EMPTY); 2327 array_free (rfeed, EMPTY);
1511 array_free (fdchange, EMPTY); 2328 array_free (fdchange, EMPTY);
1512 array_free (timer, EMPTY); 2329 array_free (timer, EMPTY);
… …
1514 array_free (periodic, EMPTY); 2331 array_free (periodic, EMPTY);
1515#endif 2332#endif
1516#if EV_FORK_ENABLE 2333#if EV_FORK_ENABLE
1517 array_free (fork, EMPTY); 2334 array_free (fork, EMPTY);
1518#endif 2335#endif
2336#if EV_CLEANUP_ENABLE
2337 array_free (cleanup, EMPTY);
2338#endif
1519 array_free (prepare, EMPTY); 2339 array_free (prepare, EMPTY);
1520 array_free (check, EMPTY); 2340 array_free (check, EMPTY);
1521#if EV_ASYNC_ENABLE 2341#if EV_ASYNC_ENABLE
1522 array_free (async, EMPTY); 2342 array_free (async, EMPTY);
1523#endif 2343#endif
1524 2344
1525 backend = 0; 2345 backend = 0;
2346
2347#if EV_MULTIPLICITY
2348 if (ev_is_default_loop (EV_A))
2349#endif
2350 ev_default_loop_ptr = 0;
2351#if EV_MULTIPLICITY
2352 else
2353 ev_free (EV_A);
2354#endif
1526} 2355}
1527 2356
1528#if EV_USE_INOTIFY 2357#if EV_USE_INOTIFY
1529inline_size void infy_fork (EV_P); 2358inline_size void infy_fork (EV_P);
1530#endif 2359#endif
… …
1545 infy_fork (EV_A); 2374 infy_fork (EV_A);
1546#endif 2375#endif
1547 2376
1548 if (ev_is_active (&pipe_w)) 2377 if (ev_is_active (&pipe_w))
1549 { 2378 {
1550 /* this "locks" the handlers against writing to the pipe */ 2379 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1551 /* while we modify the fd vars */
1552 gotsig = 1;
1553#if EV_ASYNC_ENABLE
1554 gotasync = 1;
1555#endif
1556 2380
1557 ev_ref (EV_A); 2381 ev_ref (EV_A);
1558 ev_io_stop (EV_A_ &pipe_w); 2382 ev_io_stop (EV_A_ &pipe_w);
1559 2383
1560#if EV_USE_EVENTFD 2384#if EV_USE_EVENTFD
… …
1562 close (evfd); 2386 close (evfd);
1563#endif 2387#endif
1564 2388
1565 if (evpipe [0] >= 0) 2389 if (evpipe [0] >= 0)
1566 { 2390 {
1567 close (evpipe [0]); 2391 EV_WIN32_CLOSE_FD (evpipe [0]);
1568 close (evpipe [1]); 2392 EV_WIN32_CLOSE_FD (evpipe [1]);
1569 } 2393 }
1570 2394
2395#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1571 evpipe_init (EV_A); 2396 evpipe_init (EV_A);
1572 /* now iterate over everything, in case we missed something */ 2397 /* now iterate over everything, in case we missed something */
1573 pipecb (EV_A_ &pipe_w, EV_READ); 2398 pipecb (EV_A_ &pipe_w, EV_READ);
2399#endif
1574 } 2400 }
1575 2401
1576 postfork = 0; 2402 postfork = 0;
1577} 2403}
1578 2404
1579#if EV_MULTIPLICITY 2405#if EV_MULTIPLICITY
1580 2406
1581struct ev_loop * 2407struct ev_loop * ecb_cold
1582ev_loop_new (unsigned int flags) 2408ev_loop_new (unsigned int flags)
1583{ 2409{
1584 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2410 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1585 2411
1586 memset (loop, 0, sizeof (struct ev_loop)); 2412 memset (EV_A, 0, sizeof (struct ev_loop));
1587
1588 loop_init (EV_A_ flags); 2413 loop_init (EV_A_ flags);
1589 2414
1590 if (ev_backend (EV_A)) 2415 if (ev_backend (EV_A))
1591 return loop; 2416 return EV_A;
1592 2417
2418 ev_free (EV_A);
1593 return 0; 2419 return 0;
1594} 2420}
1595 2421
1596void 2422#endif /* multiplicity */
1597ev_loop_destroy (EV_P)
1598{
1599 loop_destroy (EV_A);
1600 ev_free (loop);
1601}
1602
1603void
1604ev_loop_fork (EV_P)
1605{
1606 postfork = 1; /* must be in line with ev_default_fork */
1607}
1608 2423
1609#if EV_VERIFY 2424#if EV_VERIFY
1610static void noinline 2425static void noinline ecb_cold
1611verify_watcher (EV_P_ W w) 2426verify_watcher (EV_P_ W w)
1612{ 2427{
1613 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2428 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1614 2429
1615 if (w->pending) 2430 if (w->pending)
1616 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2431 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1617} 2432}
1618 2433
1619static void noinline 2434static void noinline ecb_cold
1620verify_heap (EV_P_ ANHE *heap, int N) 2435verify_heap (EV_P_ ANHE *heap, int N)
1621{ 2436{
1622 int i; 2437 int i;
1623 2438
1624 for (i = HEAP0; i < N + HEAP0; ++i) 2439 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1629 2444
1630 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2445 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1631 } 2446 }
1632} 2447}
1633 2448
1634static void noinline 2449static void noinline ecb_cold
1635array_verify (EV_P_ W *ws, int cnt) 2450array_verify (EV_P_ W *ws, int cnt)
1636{ 2451{
1637 while (cnt--) 2452 while (cnt--)
1638 { 2453 {
1639 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2454 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1640 verify_watcher (EV_A_ ws [cnt]); 2455 verify_watcher (EV_A_ ws [cnt]);
1641 } 2456 }
1642} 2457}
1643#endif 2458#endif
1644 2459
1645void 2460#if EV_FEATURE_API
2461void ecb_cold
1646ev_loop_verify (EV_P) 2462ev_verify (EV_P)
1647{ 2463{
1648#if EV_VERIFY 2464#if EV_VERIFY
1649 int i; 2465 int i;
1650 WL w; 2466 WL w;
1651 2467
… …
1685#if EV_FORK_ENABLE 2501#if EV_FORK_ENABLE
1686 assert (forkmax >= forkcnt); 2502 assert (forkmax >= forkcnt);
1687 array_verify (EV_A_ (W *)forks, forkcnt); 2503 array_verify (EV_A_ (W *)forks, forkcnt);
1688#endif 2504#endif
1689 2505
2506#if EV_CLEANUP_ENABLE
2507 assert (cleanupmax >= cleanupcnt);
2508 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2509#endif
2510
1690#if EV_ASYNC_ENABLE 2511#if EV_ASYNC_ENABLE
1691 assert (asyncmax >= asynccnt); 2512 assert (asyncmax >= asynccnt);
1692 array_verify (EV_A_ (W *)asyncs, asynccnt); 2513 array_verify (EV_A_ (W *)asyncs, asynccnt);
1693#endif 2514#endif
1694 2515
2516#if EV_PREPARE_ENABLE
1695 assert (preparemax >= preparecnt); 2517 assert (preparemax >= preparecnt);
1696 array_verify (EV_A_ (W *)prepares, preparecnt); 2518 array_verify (EV_A_ (W *)prepares, preparecnt);
2519#endif
1697 2520
2521#if EV_CHECK_ENABLE
1698 assert (checkmax >= checkcnt); 2522 assert (checkmax >= checkcnt);
1699 array_verify (EV_A_ (W *)checks, checkcnt); 2523 array_verify (EV_A_ (W *)checks, checkcnt);
2524#endif
1700 2525
1701# if 0 2526# if 0
2527#if EV_CHILD_ENABLE
1702 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2528 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1703 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2529 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2530#endif
1704# endif 2531# endif
1705#endif 2532#endif
1706} 2533}
1707 2534#endif
1708#endif /* multiplicity */
1709 2535
1710#if EV_MULTIPLICITY 2536#if EV_MULTIPLICITY
1711struct ev_loop * 2537struct ev_loop * ecb_cold
1712ev_default_loop_init (unsigned int flags)
1713#else 2538#else
1714int 2539int
2540#endif
1715ev_default_loop (unsigned int flags) 2541ev_default_loop (unsigned int flags)
1716#endif
1717{ 2542{
1718 if (!ev_default_loop_ptr) 2543 if (!ev_default_loop_ptr)
1719 { 2544 {
1720#if EV_MULTIPLICITY 2545#if EV_MULTIPLICITY
1721 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2546 EV_P = ev_default_loop_ptr = &default_loop_struct;
1722#else 2547#else
1723 ev_default_loop_ptr = 1; 2548 ev_default_loop_ptr = 1;
1724#endif 2549#endif
1725 2550
1726 loop_init (EV_A_ flags); 2551 loop_init (EV_A_ flags);
1727 2552
1728 if (ev_backend (EV_A)) 2553 if (ev_backend (EV_A))
1729 { 2554 {
1730#ifndef _WIN32 2555#if EV_CHILD_ENABLE
1731 ev_signal_init (&childev, childcb, SIGCHLD); 2556 ev_signal_init (&childev, childcb, SIGCHLD);
1732 ev_set_priority (&childev, EV_MAXPRI); 2557 ev_set_priority (&childev, EV_MAXPRI);
1733 ev_signal_start (EV_A_ &childev); 2558 ev_signal_start (EV_A_ &childev);
1734 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2559 ev_unref (EV_A); /* child watcher should not keep loop alive */
1735#endif 2560#endif
… …
1740 2565
1741 return ev_default_loop_ptr; 2566 return ev_default_loop_ptr;
1742} 2567}
1743 2568
1744void 2569void
1745ev_default_destroy (void) 2570ev_loop_fork (EV_P)
1746{ 2571{
1747#if EV_MULTIPLICITY
1748 struct ev_loop *loop = ev_default_loop_ptr;
1749#endif
1750
1751 ev_default_loop_ptr = 0;
1752
1753#ifndef _WIN32
1754 ev_ref (EV_A); /* child watcher */
1755 ev_signal_stop (EV_A_ &childev);
1756#endif
1757
1758 loop_destroy (EV_A);
1759}
1760
1761void
1762ev_default_fork (void)
1763{
1764#if EV_MULTIPLICITY
1765 struct ev_loop *loop = ev_default_loop_ptr;
1766#endif
1767
1768 postfork = 1; /* must be in line with ev_loop_fork */ 2572 postfork = 1; /* must be in line with ev_default_fork */
1769} 2573}
1770 2574
1771/*****************************************************************************/ 2575/*****************************************************************************/
1772 2576
1773void 2577void
1774ev_invoke (EV_P_ void *w, int revents) 2578ev_invoke (EV_P_ void *w, int revents)
1775{ 2579{
1776 EV_CB_INVOKE ((W)w, revents); 2580 EV_CB_INVOKE ((W)w, revents);
1777} 2581}
1778 2582
1779inline_speed void 2583unsigned int
1780call_pending (EV_P) 2584ev_pending_count (EV_P)
2585{
2586 int pri;
2587 unsigned int count = 0;
2588
2589 for (pri = NUMPRI; pri--; )
2590 count += pendingcnt [pri];
2591
2592 return count;
2593}
2594
2595void noinline
2596ev_invoke_pending (EV_P)
1781{ 2597{
1782 int pri; 2598 int pri;
1783 2599
1784 for (pri = NUMPRI; pri--; ) 2600 for (pri = NUMPRI; pri--; )
1785 while (pendingcnt [pri]) 2601 while (pendingcnt [pri])
1786 { 2602 {
1787 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2603 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1788
1789 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1790 /* ^ this is no longer true, as pending_w could be here */
1791 2604
1792 p->w->pending = 0; 2605 p->w->pending = 0;
1793 EV_CB_INVOKE (p->w, p->events); 2606 EV_CB_INVOKE (p->w, p->events);
1794 EV_FREQUENT_CHECK; 2607 EV_FREQUENT_CHECK;
1795 } 2608 }
… …
1852 EV_FREQUENT_CHECK; 2665 EV_FREQUENT_CHECK;
1853 feed_reverse (EV_A_ (W)w); 2666 feed_reverse (EV_A_ (W)w);
1854 } 2667 }
1855 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2668 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1856 2669
1857 feed_reverse_done (EV_A_ EV_TIMEOUT); 2670 feed_reverse_done (EV_A_ EV_TIMER);
1858 } 2671 }
1859} 2672}
1860 2673
1861#if EV_PERIODIC_ENABLE 2674#if EV_PERIODIC_ENABLE
2675
2676static void noinline
2677periodic_recalc (EV_P_ ev_periodic *w)
2678{
2679 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2680 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2681
2682 /* the above almost always errs on the low side */
2683 while (at <= ev_rt_now)
2684 {
2685 ev_tstamp nat = at + w->interval;
2686
2687 /* when resolution fails us, we use ev_rt_now */
2688 if (expect_false (nat == at))
2689 {
2690 at = ev_rt_now;
2691 break;
2692 }
2693
2694 at = nat;
2695 }
2696
2697 ev_at (w) = at;
2698}
2699
1862/* make periodics pending */ 2700/* make periodics pending */
1863inline_size void 2701inline_size void
1864periodics_reify (EV_P) 2702periodics_reify (EV_P)
1865{ 2703{
1866 EV_FREQUENT_CHECK; 2704 EV_FREQUENT_CHECK;
… …
1885 ANHE_at_cache (periodics [HEAP0]); 2723 ANHE_at_cache (periodics [HEAP0]);
1886 downheap (periodics, periodiccnt, HEAP0); 2724 downheap (periodics, periodiccnt, HEAP0);
1887 } 2725 }
1888 else if (w->interval) 2726 else if (w->interval)
1889 { 2727 {
1890 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2728 periodic_recalc (EV_A_ w);
1891 /* if next trigger time is not sufficiently in the future, put it there */
1892 /* this might happen because of floating point inexactness */
1893 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1894 {
1895 ev_at (w) += w->interval;
1896
1897 /* if interval is unreasonably low we might still have a time in the past */
1898 /* so correct this. this will make the periodic very inexact, but the user */
1899 /* has effectively asked to get triggered more often than possible */
1900 if (ev_at (w) < ev_rt_now)
1901 ev_at (w) = ev_rt_now;
1902 }
1903
1904 ANHE_at_cache (periodics [HEAP0]); 2729 ANHE_at_cache (periodics [HEAP0]);
1905 downheap (periodics, periodiccnt, HEAP0); 2730 downheap (periodics, periodiccnt, HEAP0);
1906 } 2731 }
1907 else 2732 else
1908 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2733 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1915 feed_reverse_done (EV_A_ EV_PERIODIC); 2740 feed_reverse_done (EV_A_ EV_PERIODIC);
1916 } 2741 }
1917} 2742}
1918 2743
1919/* simply recalculate all periodics */ 2744/* simply recalculate all periodics */
1920/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2745/* TODO: maybe ensure that at least one event happens when jumping forward? */
1921static void noinline 2746static void noinline ecb_cold
1922periodics_reschedule (EV_P) 2747periodics_reschedule (EV_P)
1923{ 2748{
1924 int i; 2749 int i;
1925 2750
1926 /* adjust periodics after time jump */ 2751 /* adjust periodics after time jump */
… …
1929 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2754 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1930 2755
1931 if (w->reschedule_cb) 2756 if (w->reschedule_cb)
1932 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2757 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1933 else if (w->interval) 2758 else if (w->interval)
1934 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2759 periodic_recalc (EV_A_ w);
1935 2760
1936 ANHE_at_cache (periodics [i]); 2761 ANHE_at_cache (periodics [i]);
1937 } 2762 }
1938 2763
1939 reheap (periodics, periodiccnt); 2764 reheap (periodics, periodiccnt);
1940} 2765}
1941#endif 2766#endif
1942 2767
1943/* adjust all timers by a given offset */ 2768/* adjust all timers by a given offset */
1944static void noinline 2769static void noinline ecb_cold
1945timers_reschedule (EV_P_ ev_tstamp adjust) 2770timers_reschedule (EV_P_ ev_tstamp adjust)
1946{ 2771{
1947 int i; 2772 int i;
1948 2773
1949 for (i = 0; i < timercnt; ++i) 2774 for (i = 0; i < timercnt; ++i)
… …
1953 ANHE_at_cache (*he); 2778 ANHE_at_cache (*he);
1954 } 2779 }
1955} 2780}
1956 2781
1957/* fetch new monotonic and realtime times from the kernel */ 2782/* fetch new monotonic and realtime times from the kernel */
1958/* also detetc if there was a timejump, and act accordingly */ 2783/* also detect if there was a timejump, and act accordingly */
1959inline_speed void 2784inline_speed void
1960time_update (EV_P_ ev_tstamp max_block) 2785time_update (EV_P_ ev_tstamp max_block)
1961{ 2786{
1962#if EV_USE_MONOTONIC 2787#if EV_USE_MONOTONIC
1963 if (expect_true (have_monotonic)) 2788 if (expect_true (have_monotonic))
… …
1986 * doesn't hurt either as we only do this on time-jumps or 2811 * doesn't hurt either as we only do this on time-jumps or
1987 * in the unlikely event of having been preempted here. 2812 * in the unlikely event of having been preempted here.
1988 */ 2813 */
1989 for (i = 4; --i; ) 2814 for (i = 4; --i; )
1990 { 2815 {
2816 ev_tstamp diff;
1991 rtmn_diff = ev_rt_now - mn_now; 2817 rtmn_diff = ev_rt_now - mn_now;
1992 2818
2819 diff = odiff - rtmn_diff;
2820
1993 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2821 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
1994 return; /* all is well */ 2822 return; /* all is well */
1995 2823
1996 ev_rt_now = ev_time (); 2824 ev_rt_now = ev_time ();
1997 mn_now = get_clock (); 2825 mn_now = get_clock ();
1998 now_floor = mn_now; 2826 now_floor = mn_now;
… …
2020 2848
2021 mn_now = ev_rt_now; 2849 mn_now = ev_rt_now;
2022 } 2850 }
2023} 2851}
2024 2852
2025static int loop_done;
2026
2027void 2853void
2028ev_loop (EV_P_ int flags) 2854ev_run (EV_P_ int flags)
2029{ 2855{
2856#if EV_FEATURE_API
2857 ++loop_depth;
2858#endif
2859
2860 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2861
2030 loop_done = EVUNLOOP_CANCEL; 2862 loop_done = EVBREAK_CANCEL;
2031 2863
2032 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2864 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2033 2865
2034 do 2866 do
2035 { 2867 {
2036#if EV_VERIFY >= 2 2868#if EV_VERIFY >= 2
2037 ev_loop_verify (EV_A); 2869 ev_verify (EV_A);
2038#endif 2870#endif
2039 2871
2040#ifndef _WIN32 2872#ifndef _WIN32
2041 if (expect_false (curpid)) /* penalise the forking check even more */ 2873 if (expect_false (curpid)) /* penalise the forking check even more */
2042 if (expect_false (getpid () != curpid)) 2874 if (expect_false (getpid () != curpid))
… …
2050 /* we might have forked, so queue fork handlers */ 2882 /* we might have forked, so queue fork handlers */
2051 if (expect_false (postfork)) 2883 if (expect_false (postfork))
2052 if (forkcnt) 2884 if (forkcnt)
2053 { 2885 {
2054 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2886 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2055 call_pending (EV_A); 2887 EV_INVOKE_PENDING;
2056 } 2888 }
2057#endif 2889#endif
2058 2890
2891#if EV_PREPARE_ENABLE
2059 /* queue prepare watchers (and execute them) */ 2892 /* queue prepare watchers (and execute them) */
2060 if (expect_false (preparecnt)) 2893 if (expect_false (preparecnt))
2061 { 2894 {
2062 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2895 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2063 call_pending (EV_A); 2896 EV_INVOKE_PENDING;
2064 } 2897 }
2898#endif
2899
2900 if (expect_false (loop_done))
2901 break;
2065 2902
2066 /* we might have forked, so reify kernel state if necessary */ 2903 /* we might have forked, so reify kernel state if necessary */
2067 if (expect_false (postfork)) 2904 if (expect_false (postfork))
2068 loop_fork (EV_A); 2905 loop_fork (EV_A);
2069 2906
… …
2073 /* calculate blocking time */ 2910 /* calculate blocking time */
2074 { 2911 {
2075 ev_tstamp waittime = 0.; 2912 ev_tstamp waittime = 0.;
2076 ev_tstamp sleeptime = 0.; 2913 ev_tstamp sleeptime = 0.;
2077 2914
2915 /* remember old timestamp for io_blocktime calculation */
2916 ev_tstamp prev_mn_now = mn_now;
2917
2918 /* update time to cancel out callback processing overhead */
2919 time_update (EV_A_ 1e100);
2920
2921 /* from now on, we want a pipe-wake-up */
2922 pipe_write_wanted = 1;
2923
2924 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2925
2078 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2926 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2079 { 2927 {
2080 /* update time to cancel out callback processing overhead */
2081 time_update (EV_A_ 1e100);
2082
2083 waittime = MAX_BLOCKTIME; 2928 waittime = MAX_BLOCKTIME;
2084 2929
2085 if (timercnt) 2930 if (timercnt)
2086 { 2931 {
2087 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2932 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2088 if (waittime > to) waittime = to; 2933 if (waittime > to) waittime = to;
2089 } 2934 }
2090 2935
2091#if EV_PERIODIC_ENABLE 2936#if EV_PERIODIC_ENABLE
2092 if (periodiccnt) 2937 if (periodiccnt)
2093 { 2938 {
2094 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2939 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2095 if (waittime > to) waittime = to; 2940 if (waittime > to) waittime = to;
2096 } 2941 }
2097#endif 2942#endif
2098 2943
2944 /* don't let timeouts decrease the waittime below timeout_blocktime */
2099 if (expect_false (waittime < timeout_blocktime)) 2945 if (expect_false (waittime < timeout_blocktime))
2100 waittime = timeout_blocktime; 2946 waittime = timeout_blocktime;
2101 2947
2102 sleeptime = waittime - backend_fudge; 2948 /* at this point, we NEED to wait, so we have to ensure */
2949 /* to pass a minimum nonzero value to the backend */
2950 if (expect_false (waittime < backend_mintime))
2951 waittime = backend_mintime;
2103 2952
2953 /* extra check because io_blocktime is commonly 0 */
2104 if (expect_true (sleeptime > io_blocktime)) 2954 if (expect_false (io_blocktime))
2105 sleeptime = io_blocktime;
2106
2107 if (sleeptime)
2108 { 2955 {
2956 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2957
2958 if (sleeptime > waittime - backend_mintime)
2959 sleeptime = waittime - backend_mintime;
2960
2961 if (expect_true (sleeptime > 0.))
2962 {
2109 ev_sleep (sleeptime); 2963 ev_sleep (sleeptime);
2110 waittime -= sleeptime; 2964 waittime -= sleeptime;
2965 }
2111 } 2966 }
2112 } 2967 }
2113 2968
2969#if EV_FEATURE_API
2114 ++loop_count; 2970 ++loop_count;
2971#endif
2972 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2115 backend_poll (EV_A_ waittime); 2973 backend_poll (EV_A_ waittime);
2974 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2975
2976 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2977
2978 if (pipe_write_skipped)
2979 {
2980 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2981 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2982 }
2983
2116 2984
2117 /* update ev_rt_now, do magic */ 2985 /* update ev_rt_now, do magic */
2118 time_update (EV_A_ waittime + sleeptime); 2986 time_update (EV_A_ waittime + sleeptime);
2119 } 2987 }
2120 2988
… …
2127#if EV_IDLE_ENABLE 2995#if EV_IDLE_ENABLE
2128 /* queue idle watchers unless other events are pending */ 2996 /* queue idle watchers unless other events are pending */
2129 idle_reify (EV_A); 2997 idle_reify (EV_A);
2130#endif 2998#endif
2131 2999
3000#if EV_CHECK_ENABLE
2132 /* queue check watchers, to be executed first */ 3001 /* queue check watchers, to be executed first */
2133 if (expect_false (checkcnt)) 3002 if (expect_false (checkcnt))
2134 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3003 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3004#endif
2135 3005
2136 call_pending (EV_A); 3006 EV_INVOKE_PENDING;
2137 } 3007 }
2138 while (expect_true ( 3008 while (expect_true (
2139 activecnt 3009 activecnt
2140 && !loop_done 3010 && !loop_done
2141 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3011 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2142 )); 3012 ));
2143 3013
2144 if (loop_done == EVUNLOOP_ONE) 3014 if (loop_done == EVBREAK_ONE)
2145 loop_done = EVUNLOOP_CANCEL; 3015 loop_done = EVBREAK_CANCEL;
3016
3017#if EV_FEATURE_API
3018 --loop_depth;
3019#endif
2146} 3020}
2147 3021
2148void 3022void
2149ev_unloop (EV_P_ int how) 3023ev_break (EV_P_ int how)
2150{ 3024{
2151 loop_done = how; 3025 loop_done = how;
2152} 3026}
2153 3027
2154void 3028void
… …
2201inline_size void 3075inline_size void
2202wlist_del (WL *head, WL elem) 3076wlist_del (WL *head, WL elem)
2203{ 3077{
2204 while (*head) 3078 while (*head)
2205 { 3079 {
2206 if (*head == elem) 3080 if (expect_true (*head == elem))
2207 { 3081 {
2208 *head = elem->next; 3082 *head = elem->next;
2209 return; 3083 break;
2210 } 3084 }
2211 3085
2212 head = &(*head)->next; 3086 head = &(*head)->next;
2213 } 3087 }
2214} 3088}
… …
2242} 3116}
2243 3117
2244inline_size void 3118inline_size void
2245pri_adjust (EV_P_ W w) 3119pri_adjust (EV_P_ W w)
2246{ 3120{
2247 int pri = w->priority; 3121 int pri = ev_priority (w);
2248 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 3122 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2249 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 3123 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2250 w->priority = pri; 3124 ev_set_priority (w, pri);
2251} 3125}
2252 3126
2253inline_speed void 3127inline_speed void
2254ev_start (EV_P_ W w, int active) 3128ev_start (EV_P_ W w, int active)
2255{ 3129{
… …
2274 3148
2275 if (expect_false (ev_is_active (w))) 3149 if (expect_false (ev_is_active (w)))
2276 return; 3150 return;
2277 3151
2278 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3152 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2279 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3153 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2280 3154
2281 EV_FREQUENT_CHECK; 3155 EV_FREQUENT_CHECK;
2282 3156
2283 ev_start (EV_A_ (W)w, 1); 3157 ev_start (EV_A_ (W)w, 1);
2284 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3158 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2285 wlist_add (&anfds[fd].head, (WL)w); 3159 wlist_add (&anfds[fd].head, (WL)w);
2286 3160
2287 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 3161 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2288 w->events &= ~EV__IOFDSET; 3162 w->events &= ~EV__IOFDSET;
2289 3163
2290 EV_FREQUENT_CHECK; 3164 EV_FREQUENT_CHECK;
2291} 3165}
2292 3166
… …
2302 EV_FREQUENT_CHECK; 3176 EV_FREQUENT_CHECK;
2303 3177
2304 wlist_del (&anfds[w->fd].head, (WL)w); 3178 wlist_del (&anfds[w->fd].head, (WL)w);
2305 ev_stop (EV_A_ (W)w); 3179 ev_stop (EV_A_ (W)w);
2306 3180
2307 fd_change (EV_A_ w->fd, 1); 3181 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2308 3182
2309 EV_FREQUENT_CHECK; 3183 EV_FREQUENT_CHECK;
2310} 3184}
2311 3185
2312void noinline 3186void noinline
… …
2354 timers [active] = timers [timercnt + HEAP0]; 3228 timers [active] = timers [timercnt + HEAP0];
2355 adjustheap (timers, timercnt, active); 3229 adjustheap (timers, timercnt, active);
2356 } 3230 }
2357 } 3231 }
2358 3232
2359 EV_FREQUENT_CHECK;
2360
2361 ev_at (w) -= mn_now; 3233 ev_at (w) -= mn_now;
2362 3234
2363 ev_stop (EV_A_ (W)w); 3235 ev_stop (EV_A_ (W)w);
3236
3237 EV_FREQUENT_CHECK;
2364} 3238}
2365 3239
2366void noinline 3240void noinline
2367ev_timer_again (EV_P_ ev_timer *w) 3241ev_timer_again (EV_P_ ev_timer *w)
2368{ 3242{
… …
2386 } 3260 }
2387 3261
2388 EV_FREQUENT_CHECK; 3262 EV_FREQUENT_CHECK;
2389} 3263}
2390 3264
3265ev_tstamp
3266ev_timer_remaining (EV_P_ ev_timer *w)
3267{
3268 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3269}
3270
2391#if EV_PERIODIC_ENABLE 3271#if EV_PERIODIC_ENABLE
2392void noinline 3272void noinline
2393ev_periodic_start (EV_P_ ev_periodic *w) 3273ev_periodic_start (EV_P_ ev_periodic *w)
2394{ 3274{
2395 if (expect_false (ev_is_active (w))) 3275 if (expect_false (ev_is_active (w)))
… …
2398 if (w->reschedule_cb) 3278 if (w->reschedule_cb)
2399 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3279 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2400 else if (w->interval) 3280 else if (w->interval)
2401 { 3281 {
2402 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3282 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2403 /* this formula differs from the one in periodic_reify because we do not always round up */ 3283 periodic_recalc (EV_A_ w);
2404 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2405 } 3284 }
2406 else 3285 else
2407 ev_at (w) = w->offset; 3286 ev_at (w) = w->offset;
2408 3287
2409 EV_FREQUENT_CHECK; 3288 EV_FREQUENT_CHECK;
… …
2441 periodics [active] = periodics [periodiccnt + HEAP0]; 3320 periodics [active] = periodics [periodiccnt + HEAP0];
2442 adjustheap (periodics, periodiccnt, active); 3321 adjustheap (periodics, periodiccnt, active);
2443 } 3322 }
2444 } 3323 }
2445 3324
2446 EV_FREQUENT_CHECK;
2447
2448 ev_stop (EV_A_ (W)w); 3325 ev_stop (EV_A_ (W)w);
3326
3327 EV_FREQUENT_CHECK;
2449} 3328}
2450 3329
2451void noinline 3330void noinline
2452ev_periodic_again (EV_P_ ev_periodic *w) 3331ev_periodic_again (EV_P_ ev_periodic *w)
2453{ 3332{
… …
2459 3338
2460#ifndef SA_RESTART 3339#ifndef SA_RESTART
2461# define SA_RESTART 0 3340# define SA_RESTART 0
2462#endif 3341#endif
2463 3342
3343#if EV_SIGNAL_ENABLE
3344
2464void noinline 3345void noinline
2465ev_signal_start (EV_P_ ev_signal *w) 3346ev_signal_start (EV_P_ ev_signal *w)
2466{ 3347{
2467#if EV_MULTIPLICITY
2468 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2469#endif
2470 if (expect_false (ev_is_active (w))) 3348 if (expect_false (ev_is_active (w)))
2471 return; 3349 return;
2472 3350
2473 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3351 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2474 3352
2475 evpipe_init (EV_A); 3353#if EV_MULTIPLICITY
3354 assert (("libev: a signal must not be attached to two different loops",
3355 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2476 3356
2477 EV_FREQUENT_CHECK; 3357 signals [w->signum - 1].loop = EV_A;
3358#endif
2478 3359
3360 EV_FREQUENT_CHECK;
3361
3362#if EV_USE_SIGNALFD
3363 if (sigfd == -2)
2479 { 3364 {
2480#ifndef _WIN32 3365 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2481 sigset_t full, prev; 3366 if (sigfd < 0 && errno == EINVAL)
2482 sigfillset (&full); 3367 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2483 sigprocmask (SIG_SETMASK, &full, &prev);
2484#endif
2485 3368
2486 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3369 if (sigfd >= 0)
3370 {
3371 fd_intern (sigfd); /* doing it twice will not hurt */
2487 3372
2488#ifndef _WIN32 3373 sigemptyset (&sigfd_set);
2489 sigprocmask (SIG_SETMASK, &prev, 0); 3374
2490#endif 3375 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3376 ev_set_priority (&sigfd_w, EV_MAXPRI);
3377 ev_io_start (EV_A_ &sigfd_w);
3378 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3379 }
2491 } 3380 }
3381
3382 if (sigfd >= 0)
3383 {
3384 /* TODO: check .head */
3385 sigaddset (&sigfd_set, w->signum);
3386 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3387
3388 signalfd (sigfd, &sigfd_set, 0);
3389 }
3390#endif
2492 3391
2493 ev_start (EV_A_ (W)w, 1); 3392 ev_start (EV_A_ (W)w, 1);
2494 wlist_add (&signals [w->signum - 1].head, (WL)w); 3393 wlist_add (&signals [w->signum - 1].head, (WL)w);
2495 3394
2496 if (!((WL)w)->next) 3395 if (!((WL)w)->next)
3396# if EV_USE_SIGNALFD
3397 if (sigfd < 0) /*TODO*/
3398# endif
2497 { 3399 {
2498#if _WIN32 3400# ifdef _WIN32
3401 evpipe_init (EV_A);
3402
2499 signal (w->signum, ev_sighandler); 3403 signal (w->signum, ev_sighandler);
2500#else 3404# else
2501 struct sigaction sa; 3405 struct sigaction sa;
3406
3407 evpipe_init (EV_A);
3408
2502 sa.sa_handler = ev_sighandler; 3409 sa.sa_handler = ev_sighandler;
2503 sigfillset (&sa.sa_mask); 3410 sigfillset (&sa.sa_mask);
2504 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3411 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2505 sigaction (w->signum, &sa, 0); 3412 sigaction (w->signum, &sa, 0);
3413
3414 if (origflags & EVFLAG_NOSIGMASK)
3415 {
3416 sigemptyset (&sa.sa_mask);
3417 sigaddset (&sa.sa_mask, w->signum);
3418 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3419 }
2506#endif 3420#endif
2507 } 3421 }
2508 3422
2509 EV_FREQUENT_CHECK; 3423 EV_FREQUENT_CHECK;
2510} 3424}
2511 3425
2512void noinline 3426void noinline
… …
2520 3434
2521 wlist_del (&signals [w->signum - 1].head, (WL)w); 3435 wlist_del (&signals [w->signum - 1].head, (WL)w);
2522 ev_stop (EV_A_ (W)w); 3436 ev_stop (EV_A_ (W)w);
2523 3437
2524 if (!signals [w->signum - 1].head) 3438 if (!signals [w->signum - 1].head)
3439 {
3440#if EV_MULTIPLICITY
3441 signals [w->signum - 1].loop = 0; /* unattach from signal */
3442#endif
3443#if EV_USE_SIGNALFD
3444 if (sigfd >= 0)
3445 {
3446 sigset_t ss;
3447
3448 sigemptyset (&ss);
3449 sigaddset (&ss, w->signum);
3450 sigdelset (&sigfd_set, w->signum);
3451
3452 signalfd (sigfd, &sigfd_set, 0);
3453 sigprocmask (SIG_UNBLOCK, &ss, 0);
3454 }
3455 else
3456#endif
2525 signal (w->signum, SIG_DFL); 3457 signal (w->signum, SIG_DFL);
3458 }
2526 3459
2527 EV_FREQUENT_CHECK; 3460 EV_FREQUENT_CHECK;
2528} 3461}
3462
3463#endif
3464
3465#if EV_CHILD_ENABLE
2529 3466
2530void 3467void
2531ev_child_start (EV_P_ ev_child *w) 3468ev_child_start (EV_P_ ev_child *w)
2532{ 3469{
2533#if EV_MULTIPLICITY 3470#if EV_MULTIPLICITY
… …
2537 return; 3474 return;
2538 3475
2539 EV_FREQUENT_CHECK; 3476 EV_FREQUENT_CHECK;
2540 3477
2541 ev_start (EV_A_ (W)w, 1); 3478 ev_start (EV_A_ (W)w, 1);
2542 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3479 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2543 3480
2544 EV_FREQUENT_CHECK; 3481 EV_FREQUENT_CHECK;
2545} 3482}
2546 3483
2547void 3484void
… …
2551 if (expect_false (!ev_is_active (w))) 3488 if (expect_false (!ev_is_active (w)))
2552 return; 3489 return;
2553 3490
2554 EV_FREQUENT_CHECK; 3491 EV_FREQUENT_CHECK;
2555 3492
2556 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3493 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2557 ev_stop (EV_A_ (W)w); 3494 ev_stop (EV_A_ (W)w);
2558 3495
2559 EV_FREQUENT_CHECK; 3496 EV_FREQUENT_CHECK;
2560} 3497}
3498
3499#endif
2561 3500
2562#if EV_STAT_ENABLE 3501#if EV_STAT_ENABLE
2563 3502
2564# ifdef _WIN32 3503# ifdef _WIN32
2565# undef lstat 3504# undef lstat
… …
2571#define MIN_STAT_INTERVAL 0.1074891 3510#define MIN_STAT_INTERVAL 0.1074891
2572 3511
2573static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3512static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2574 3513
2575#if EV_USE_INOTIFY 3514#if EV_USE_INOTIFY
2576# define EV_INOTIFY_BUFSIZE 8192 3515
3516/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3517# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2577 3518
2578static void noinline 3519static void noinline
2579infy_add (EV_P_ ev_stat *w) 3520infy_add (EV_P_ ev_stat *w)
2580{ 3521{
2581 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); 3522 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);
2582 3523
2583 if (w->wd < 0) 3524 if (w->wd >= 0)
3525 {
3526 struct statfs sfs;
3527
3528 /* now local changes will be tracked by inotify, but remote changes won't */
3529 /* unless the filesystem is known to be local, we therefore still poll */
3530 /* also do poll on <2.6.25, but with normal frequency */
3531
3532 if (!fs_2625)
3533 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3534 else if (!statfs (w->path, &sfs)
3535 && (sfs.f_type == 0x1373 /* devfs */
3536 || sfs.f_type == 0xEF53 /* ext2/3 */
3537 || sfs.f_type == 0x3153464a /* jfs */
3538 || sfs.f_type == 0x52654973 /* reiser3 */
3539 || sfs.f_type == 0x01021994 /* tempfs */
3540 || sfs.f_type == 0x58465342 /* xfs */))
3541 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3542 else
3543 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2584 { 3544 }
3545 else
3546 {
3547 /* can't use inotify, continue to stat */
2585 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3548 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2586 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2587 3549
2588 /* monitor some parent directory for speedup hints */ 3550 /* if path is not there, monitor some parent directory for speedup hints */
2589 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3551 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2590 /* but an efficiency issue only */ 3552 /* but an efficiency issue only */
2591 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3553 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2592 { 3554 {
2593 char path [4096]; 3555 char path [4096];
… …
2603 if (!pend || pend == path) 3565 if (!pend || pend == path)
2604 break; 3566 break;
2605 3567
2606 *pend = 0; 3568 *pend = 0;
2607 w->wd = inotify_add_watch (fs_fd, path, mask); 3569 w->wd = inotify_add_watch (fs_fd, path, mask);
2608 } 3570 }
2609 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3571 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2610 } 3572 }
2611 } 3573 }
2612 3574
2613 if (w->wd >= 0) 3575 if (w->wd >= 0)
2614 {
2615 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3576 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2616 3577
2617 /* now local changes will be tracked by inotify, but remote changes won't */ 3578 /* now re-arm timer, if required */
2618 /* unless the filesystem it known to be local, we therefore still poll */ 3579 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2619 /* also do poll on <2.6.25, but with normal frequency */
2620 struct statfs sfs;
2621
2622 if (fs_2625 && !statfs (w->path, &sfs))
2623 if (sfs.f_type == 0x1373 /* devfs */
2624 || sfs.f_type == 0xEF53 /* ext2/3 */
2625 || sfs.f_type == 0x3153464a /* jfs */
2626 || sfs.f_type == 0x52654973 /* reiser3 */
2627 || sfs.f_type == 0x01021994 /* tempfs */
2628 || sfs.f_type == 0x58465342 /* xfs */)
2629 return;
2630
2631 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2632 ev_timer_again (EV_A_ &w->timer); 3580 ev_timer_again (EV_A_ &w->timer);
2633 } 3581 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2634} 3582}
2635 3583
2636static void noinline 3584static void noinline
2637infy_del (EV_P_ ev_stat *w) 3585infy_del (EV_P_ ev_stat *w)
2638{ 3586{
… …
2641 3589
2642 if (wd < 0) 3590 if (wd < 0)
2643 return; 3591 return;
2644 3592
2645 w->wd = -2; 3593 w->wd = -2;
2646 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3594 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2647 wlist_del (&fs_hash [slot].head, (WL)w); 3595 wlist_del (&fs_hash [slot].head, (WL)w);
2648 3596
2649 /* remove this watcher, if others are watching it, they will rearm */ 3597 /* remove this watcher, if others are watching it, they will rearm */
2650 inotify_rm_watch (fs_fd, wd); 3598 inotify_rm_watch (fs_fd, wd);
2651} 3599}
… …
2653static void noinline 3601static void noinline
2654infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3602infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2655{ 3603{
2656 if (slot < 0) 3604 if (slot < 0)
2657 /* overflow, need to check for all hash slots */ 3605 /* overflow, need to check for all hash slots */
2658 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3606 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2659 infy_wd (EV_A_ slot, wd, ev); 3607 infy_wd (EV_A_ slot, wd, ev);
2660 else 3608 else
2661 { 3609 {
2662 WL w_; 3610 WL w_;
2663 3611
2664 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3612 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2665 { 3613 {
2666 ev_stat *w = (ev_stat *)w_; 3614 ev_stat *w = (ev_stat *)w_;
2667 w_ = w_->next; /* lets us remove this watcher and all before it */ 3615 w_ = w_->next; /* lets us remove this watcher and all before it */
2668 3616
2669 if (w->wd == wd || wd == -1) 3617 if (w->wd == wd || wd == -1)
2670 { 3618 {
2671 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3619 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2672 { 3620 {
2673 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3621 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2674 w->wd = -1; 3622 w->wd = -1;
2675 infy_add (EV_A_ w); /* re-add, no matter what */ 3623 infy_add (EV_A_ w); /* re-add, no matter what */
2676 } 3624 }
2677 3625
2678 stat_timer_cb (EV_A_ &w->timer, 0); 3626 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2683 3631
2684static void 3632static void
2685infy_cb (EV_P_ ev_io *w, int revents) 3633infy_cb (EV_P_ ev_io *w, int revents)
2686{ 3634{
2687 char buf [EV_INOTIFY_BUFSIZE]; 3635 char buf [EV_INOTIFY_BUFSIZE];
2688 struct inotify_event *ev = (struct inotify_event *)buf;
2689 int ofs; 3636 int ofs;
2690 int len = read (fs_fd, buf, sizeof (buf)); 3637 int len = read (fs_fd, buf, sizeof (buf));
2691 3638
2692 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3639 for (ofs = 0; ofs < len; )
3640 {
3641 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2693 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3642 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3643 ofs += sizeof (struct inotify_event) + ev->len;
3644 }
2694} 3645}
2695 3646
2696inline_size void 3647inline_size void ecb_cold
2697check_2625 (EV_P) 3648ev_check_2625 (EV_P)
2698{ 3649{
2699 /* kernels < 2.6.25 are borked 3650 /* kernels < 2.6.25 are borked
2700 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3651 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2701 */ 3652 */
2702 struct utsname buf; 3653 if (ev_linux_version () < 0x020619)
2703 int major, minor, micro;
2704
2705 if (uname (&buf))
2706 return; 3654 return;
2707 3655
2708 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2709 return;
2710
2711 if (major < 2
2712 || (major == 2 && minor < 6)
2713 || (major == 2 && minor == 6 && micro < 25))
2714 return;
2715
2716 fs_2625 = 1; 3656 fs_2625 = 1;
3657}
3658
3659inline_size int
3660infy_newfd (void)
3661{
3662#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3663 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3664 if (fd >= 0)
3665 return fd;
3666#endif
3667 return inotify_init ();
2717} 3668}
2718 3669
2719inline_size void 3670inline_size void
2720infy_init (EV_P) 3671infy_init (EV_P)
2721{ 3672{
2722 if (fs_fd != -2) 3673 if (fs_fd != -2)
2723 return; 3674 return;
2724 3675
2725 fs_fd = -1; 3676 fs_fd = -1;
2726 3677
2727 check_2625 (EV_A); 3678 ev_check_2625 (EV_A);
2728 3679
2729 fs_fd = inotify_init (); 3680 fs_fd = infy_newfd ();
2730 3681
2731 if (fs_fd >= 0) 3682 if (fs_fd >= 0)
2732 { 3683 {
3684 fd_intern (fs_fd);
2733 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3685 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2734 ev_set_priority (&fs_w, EV_MAXPRI); 3686 ev_set_priority (&fs_w, EV_MAXPRI);
2735 ev_io_start (EV_A_ &fs_w); 3687 ev_io_start (EV_A_ &fs_w);
3688 ev_unref (EV_A);
2736 } 3689 }
2737} 3690}
2738 3691
2739inline_size void 3692inline_size void
2740infy_fork (EV_P) 3693infy_fork (EV_P)
… …
2742 int slot; 3695 int slot;
2743 3696
2744 if (fs_fd < 0) 3697 if (fs_fd < 0)
2745 return; 3698 return;
2746 3699
3700 ev_ref (EV_A);
3701 ev_io_stop (EV_A_ &fs_w);
2747 close (fs_fd); 3702 close (fs_fd);
2748 fs_fd = inotify_init (); 3703 fs_fd = infy_newfd ();
2749 3704
3705 if (fs_fd >= 0)
3706 {
3707 fd_intern (fs_fd);
3708 ev_io_set (&fs_w, fs_fd, EV_READ);
3709 ev_io_start (EV_A_ &fs_w);
3710 ev_unref (EV_A);
3711 }
3712
2750 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3713 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2751 { 3714 {
2752 WL w_ = fs_hash [slot].head; 3715 WL w_ = fs_hash [slot].head;
2753 fs_hash [slot].head = 0; 3716 fs_hash [slot].head = 0;
2754 3717
2755 while (w_) 3718 while (w_)
… …
2760 w->wd = -1; 3723 w->wd = -1;
2761 3724
2762 if (fs_fd >= 0) 3725 if (fs_fd >= 0)
2763 infy_add (EV_A_ w); /* re-add, no matter what */ 3726 infy_add (EV_A_ w); /* re-add, no matter what */
2764 else 3727 else
3728 {
3729 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3730 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2765 ev_timer_again (EV_A_ &w->timer); 3731 ev_timer_again (EV_A_ &w->timer);
3732 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3733 }
2766 } 3734 }
2767 } 3735 }
2768} 3736}
2769 3737
2770#endif 3738#endif
… …
2787static void noinline 3755static void noinline
2788stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3756stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2789{ 3757{
2790 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3758 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2791 3759
2792 /* we copy this here each the time so that */ 3760 ev_statdata prev = w->attr;
2793 /* prev has the old value when the callback gets invoked */
2794 w->prev = w->attr;
2795 ev_stat_stat (EV_A_ w); 3761 ev_stat_stat (EV_A_ w);
2796 3762
2797 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3763 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2798 if ( 3764 if (
2799 w->prev.st_dev != w->attr.st_dev 3765 prev.st_dev != w->attr.st_dev
2800 || w->prev.st_ino != w->attr.st_ino 3766 || prev.st_ino != w->attr.st_ino
2801 || w->prev.st_mode != w->attr.st_mode 3767 || prev.st_mode != w->attr.st_mode
2802 || w->prev.st_nlink != w->attr.st_nlink 3768 || prev.st_nlink != w->attr.st_nlink
2803 || w->prev.st_uid != w->attr.st_uid 3769 || prev.st_uid != w->attr.st_uid
2804 || w->prev.st_gid != w->attr.st_gid 3770 || prev.st_gid != w->attr.st_gid
2805 || w->prev.st_rdev != w->attr.st_rdev 3771 || prev.st_rdev != w->attr.st_rdev
2806 || w->prev.st_size != w->attr.st_size 3772 || prev.st_size != w->attr.st_size
2807 || w->prev.st_atime != w->attr.st_atime 3773 || prev.st_atime != w->attr.st_atime
2808 || w->prev.st_mtime != w->attr.st_mtime 3774 || prev.st_mtime != w->attr.st_mtime
2809 || w->prev.st_ctime != w->attr.st_ctime 3775 || prev.st_ctime != w->attr.st_ctime
2810 ) { 3776 ) {
3777 /* we only update w->prev on actual differences */
3778 /* in case we test more often than invoke the callback, */
3779 /* to ensure that prev is always different to attr */
3780 w->prev = prev;
3781
2811 #if EV_USE_INOTIFY 3782 #if EV_USE_INOTIFY
2812 if (fs_fd >= 0) 3783 if (fs_fd >= 0)
2813 { 3784 {
2814 infy_del (EV_A_ w); 3785 infy_del (EV_A_ w);
2815 infy_add (EV_A_ w); 3786 infy_add (EV_A_ w);
… …
2840 3811
2841 if (fs_fd >= 0) 3812 if (fs_fd >= 0)
2842 infy_add (EV_A_ w); 3813 infy_add (EV_A_ w);
2843 else 3814 else
2844#endif 3815#endif
3816 {
2845 ev_timer_again (EV_A_ &w->timer); 3817 ev_timer_again (EV_A_ &w->timer);
3818 ev_unref (EV_A);
3819 }
2846 3820
2847 ev_start (EV_A_ (W)w, 1); 3821 ev_start (EV_A_ (W)w, 1);
2848 3822
2849 EV_FREQUENT_CHECK; 3823 EV_FREQUENT_CHECK;
2850} 3824}
… …
2859 EV_FREQUENT_CHECK; 3833 EV_FREQUENT_CHECK;
2860 3834
2861#if EV_USE_INOTIFY 3835#if EV_USE_INOTIFY
2862 infy_del (EV_A_ w); 3836 infy_del (EV_A_ w);
2863#endif 3837#endif
3838
3839 if (ev_is_active (&w->timer))
3840 {
3841 ev_ref (EV_A);
2864 ev_timer_stop (EV_A_ &w->timer); 3842 ev_timer_stop (EV_A_ &w->timer);
3843 }
2865 3844
2866 ev_stop (EV_A_ (W)w); 3845 ev_stop (EV_A_ (W)w);
2867 3846
2868 EV_FREQUENT_CHECK; 3847 EV_FREQUENT_CHECK;
2869} 3848}
… …
2914 3893
2915 EV_FREQUENT_CHECK; 3894 EV_FREQUENT_CHECK;
2916} 3895}
2917#endif 3896#endif
2918 3897
3898#if EV_PREPARE_ENABLE
2919void 3899void
2920ev_prepare_start (EV_P_ ev_prepare *w) 3900ev_prepare_start (EV_P_ ev_prepare *w)
2921{ 3901{
2922 if (expect_false (ev_is_active (w))) 3902 if (expect_false (ev_is_active (w)))
2923 return; 3903 return;
… …
2949 3929
2950 ev_stop (EV_A_ (W)w); 3930 ev_stop (EV_A_ (W)w);
2951 3931
2952 EV_FREQUENT_CHECK; 3932 EV_FREQUENT_CHECK;
2953} 3933}
3934#endif
2954 3935
3936#if EV_CHECK_ENABLE
2955void 3937void
2956ev_check_start (EV_P_ ev_check *w) 3938ev_check_start (EV_P_ ev_check *w)
2957{ 3939{
2958 if (expect_false (ev_is_active (w))) 3940 if (expect_false (ev_is_active (w)))
2959 return; 3941 return;
… …
2985 3967
2986 ev_stop (EV_A_ (W)w); 3968 ev_stop (EV_A_ (W)w);
2987 3969
2988 EV_FREQUENT_CHECK; 3970 EV_FREQUENT_CHECK;
2989} 3971}
3972#endif
2990 3973
2991#if EV_EMBED_ENABLE 3974#if EV_EMBED_ENABLE
2992void noinline 3975void noinline
2993ev_embed_sweep (EV_P_ ev_embed *w) 3976ev_embed_sweep (EV_P_ ev_embed *w)
2994{ 3977{
2995 ev_loop (w->other, EVLOOP_NONBLOCK); 3978 ev_run (w->other, EVRUN_NOWAIT);
2996} 3979}
2997 3980
2998static void 3981static void
2999embed_io_cb (EV_P_ ev_io *io, int revents) 3982embed_io_cb (EV_P_ ev_io *io, int revents)
3000{ 3983{
3001 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3984 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3002 3985
3003 if (ev_cb (w)) 3986 if (ev_cb (w))
3004 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3987 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3005 else 3988 else
3006 ev_loop (w->other, EVLOOP_NONBLOCK); 3989 ev_run (w->other, EVRUN_NOWAIT);
3007} 3990}
3008 3991
3009static void 3992static void
3010embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3993embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3011{ 3994{
3012 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3995 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3013 3996
3014 { 3997 {
3015 struct ev_loop *loop = w->other; 3998 EV_P = w->other;
3016 3999
3017 while (fdchangecnt) 4000 while (fdchangecnt)
3018 { 4001 {
3019 fd_reify (EV_A); 4002 fd_reify (EV_A);
3020 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4003 ev_run (EV_A_ EVRUN_NOWAIT);
3021 } 4004 }
3022 } 4005 }
3023} 4006}
3024 4007
3025static void 4008static void
… …
3028 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4011 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3029 4012
3030 ev_embed_stop (EV_A_ w); 4013 ev_embed_stop (EV_A_ w);
3031 4014
3032 { 4015 {
3033 struct ev_loop *loop = w->other; 4016 EV_P = w->other;
3034 4017
3035 ev_loop_fork (EV_A); 4018 ev_loop_fork (EV_A);
3036 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4019 ev_run (EV_A_ EVRUN_NOWAIT);
3037 } 4020 }
3038 4021
3039 ev_embed_start (EV_A_ w); 4022 ev_embed_start (EV_A_ w);
3040} 4023}
3041 4024
… …
3052{ 4035{
3053 if (expect_false (ev_is_active (w))) 4036 if (expect_false (ev_is_active (w)))
3054 return; 4037 return;
3055 4038
3056 { 4039 {
3057 struct ev_loop *loop = w->other; 4040 EV_P = w->other;
3058 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4041 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3059 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4042 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3060 } 4043 }
3061 4044
3062 EV_FREQUENT_CHECK; 4045 EV_FREQUENT_CHECK;
… …
3089 4072
3090 ev_io_stop (EV_A_ &w->io); 4073 ev_io_stop (EV_A_ &w->io);
3091 ev_prepare_stop (EV_A_ &w->prepare); 4074 ev_prepare_stop (EV_A_ &w->prepare);
3092 ev_fork_stop (EV_A_ &w->fork); 4075 ev_fork_stop (EV_A_ &w->fork);
3093 4076
4077 ev_stop (EV_A_ (W)w);
4078
3094 EV_FREQUENT_CHECK; 4079 EV_FREQUENT_CHECK;
3095} 4080}
3096#endif 4081#endif
3097 4082
3098#if EV_FORK_ENABLE 4083#if EV_FORK_ENABLE
… …
3131 4116
3132 EV_FREQUENT_CHECK; 4117 EV_FREQUENT_CHECK;
3133} 4118}
3134#endif 4119#endif
3135 4120
4121#if EV_CLEANUP_ENABLE
4122void
4123ev_cleanup_start (EV_P_ ev_cleanup *w)
4124{
4125 if (expect_false (ev_is_active (w)))
4126 return;
4127
4128 EV_FREQUENT_CHECK;
4129
4130 ev_start (EV_A_ (W)w, ++cleanupcnt);
4131 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4132 cleanups [cleanupcnt - 1] = w;
4133
4134 /* cleanup watchers should never keep a refcount on the loop */
4135 ev_unref (EV_A);
4136 EV_FREQUENT_CHECK;
4137}
4138
4139void
4140ev_cleanup_stop (EV_P_ ev_cleanup *w)
4141{
4142 clear_pending (EV_A_ (W)w);
4143 if (expect_false (!ev_is_active (w)))
4144 return;
4145
4146 EV_FREQUENT_CHECK;
4147 ev_ref (EV_A);
4148
4149 {
4150 int active = ev_active (w);
4151
4152 cleanups [active - 1] = cleanups [--cleanupcnt];
4153 ev_active (cleanups [active - 1]) = active;
4154 }
4155
4156 ev_stop (EV_A_ (W)w);
4157
4158 EV_FREQUENT_CHECK;
4159}
4160#endif
4161
3136#if EV_ASYNC_ENABLE 4162#if EV_ASYNC_ENABLE
3137void 4163void
3138ev_async_start (EV_P_ ev_async *w) 4164ev_async_start (EV_P_ ev_async *w)
3139{ 4165{
3140 if (expect_false (ev_is_active (w))) 4166 if (expect_false (ev_is_active (w)))
3141 return; 4167 return;
3142 4168
4169 w->sent = 0;
4170
3143 evpipe_init (EV_A); 4171 evpipe_init (EV_A);
3144 4172
3145 EV_FREQUENT_CHECK; 4173 EV_FREQUENT_CHECK;
3146 4174
3147 ev_start (EV_A_ (W)w, ++asynccnt); 4175 ev_start (EV_A_ (W)w, ++asynccnt);
… …
3174 4202
3175void 4203void
3176ev_async_send (EV_P_ ev_async *w) 4204ev_async_send (EV_P_ ev_async *w)
3177{ 4205{
3178 w->sent = 1; 4206 w->sent = 1;
3179 evpipe_write (EV_A_ &gotasync); 4207 evpipe_write (EV_A_ &async_pending);
3180} 4208}
3181#endif 4209#endif
3182 4210
3183/*****************************************************************************/ 4211/*****************************************************************************/
3184 4212
… …
3224{ 4252{
3225 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4253 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3226 4254
3227 if (expect_false (!once)) 4255 if (expect_false (!once))
3228 { 4256 {
3229 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4257 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3230 return; 4258 return;
3231 } 4259 }
3232 4260
3233 once->cb = cb; 4261 once->cb = cb;
3234 once->arg = arg; 4262 once->arg = arg;
… …
3249} 4277}
3250 4278
3251/*****************************************************************************/ 4279/*****************************************************************************/
3252 4280
3253#if EV_WALK_ENABLE 4281#if EV_WALK_ENABLE
3254void 4282void ecb_cold
3255ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4283ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3256{ 4284{
3257 int i, j; 4285 int i, j;
3258 ev_watcher_list *wl, *wn; 4286 ev_watcher_list *wl, *wn;
3259 4287
… …
3303 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4331 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3304#endif 4332#endif
3305 4333
3306#if EV_IDLE_ENABLE 4334#if EV_IDLE_ENABLE
3307 if (types & EV_IDLE) 4335 if (types & EV_IDLE)
3308 for (j = NUMPRI; i--; ) 4336 for (j = NUMPRI; j--; )
3309 for (i = idlecnt [j]; i--; ) 4337 for (i = idlecnt [j]; i--; )
3310 cb (EV_A_ EV_IDLE, idles [j][i]); 4338 cb (EV_A_ EV_IDLE, idles [j][i]);
3311#endif 4339#endif
3312 4340
3313#if EV_FORK_ENABLE 4341#if EV_FORK_ENABLE
… …
3321 if (types & EV_ASYNC) 4349 if (types & EV_ASYNC)
3322 for (i = asynccnt; i--; ) 4350 for (i = asynccnt; i--; )
3323 cb (EV_A_ EV_ASYNC, asyncs [i]); 4351 cb (EV_A_ EV_ASYNC, asyncs [i]);
3324#endif 4352#endif
3325 4353
4354#if EV_PREPARE_ENABLE
3326 if (types & EV_PREPARE) 4355 if (types & EV_PREPARE)
3327 for (i = preparecnt; i--; ) 4356 for (i = preparecnt; i--; )
3328#if EV_EMBED_ENABLE 4357# if EV_EMBED_ENABLE
3329 if (ev_cb (prepares [i]) != embed_prepare_cb) 4358 if (ev_cb (prepares [i]) != embed_prepare_cb)
3330#endif 4359# endif
3331 cb (EV_A_ EV_PREPARE, prepares [i]); 4360 cb (EV_A_ EV_PREPARE, prepares [i]);
4361#endif
3332 4362
4363#if EV_CHECK_ENABLE
3333 if (types & EV_CHECK) 4364 if (types & EV_CHECK)
3334 for (i = checkcnt; i--; ) 4365 for (i = checkcnt; i--; )
3335 cb (EV_A_ EV_CHECK, checks [i]); 4366 cb (EV_A_ EV_CHECK, checks [i]);
4367#endif
3336 4368
4369#if EV_SIGNAL_ENABLE
3337 if (types & EV_SIGNAL) 4370 if (types & EV_SIGNAL)
3338 for (i = 0; i < signalmax; ++i) 4371 for (i = 0; i < EV_NSIG - 1; ++i)
3339 for (wl = signals [i].head; wl; ) 4372 for (wl = signals [i].head; wl; )
3340 { 4373 {
3341 wn = wl->next; 4374 wn = wl->next;
3342 cb (EV_A_ EV_SIGNAL, wl); 4375 cb (EV_A_ EV_SIGNAL, wl);
3343 wl = wn; 4376 wl = wn;
3344 } 4377 }
4378#endif
3345 4379
4380#if EV_CHILD_ENABLE
3346 if (types & EV_CHILD) 4381 if (types & EV_CHILD)
3347 for (i = EV_PID_HASHSIZE; i--; ) 4382 for (i = (EV_PID_HASHSIZE); i--; )
3348 for (wl = childs [i]; wl; ) 4383 for (wl = childs [i]; wl; )
3349 { 4384 {
3350 wn = wl->next; 4385 wn = wl->next;
3351 cb (EV_A_ EV_CHILD, wl); 4386 cb (EV_A_ EV_CHILD, wl);
3352 wl = wn; 4387 wl = wn;
3353 } 4388 }
4389#endif
3354/* EV_STAT 0x00001000 /* stat data changed */ 4390/* EV_STAT 0x00001000 /* stat data changed */
3355/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4391/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3356} 4392}
3357#endif 4393#endif
3358 4394
3359#if EV_MULTIPLICITY 4395#if EV_MULTIPLICITY
3360 #include "ev_wrap.h" 4396 #include "ev_wrap.h"
3361#endif 4397#endif
3362 4398
3363#ifdef __cplusplus 4399EV_CPP(})
3364}
3365#endif
3366 4400

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