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Comparing libev/ev.c (file contents):
Revision 1.291 by root, Mon Jun 29 04:44:18 2009 UTC vs.
Revision 1.394 by root, Thu Aug 4 14:49:27 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#endif
544
545#ifndef ECB_MEMORY_FENCE
546 #if ECB_GCC_VERSION(2,5)
547 #if __x86
548 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
549 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
550 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
551 #elif __amd64
552 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
554 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
555 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
558 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)
559 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
560 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
561 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
563 #endif
564 #endif
565#endif
566
567#ifndef ECB_MEMORY_FENCE
568 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER)
569 #define ECB_MEMORY_FENCE __sync_synchronize ()
570 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
571 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
572 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32)
578 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
580 #endif
581#endif
582
583#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS
585 /*
586 * if you get undefined symbol references to pthread_mutex_lock,
587 * or failure to find pthread.h, then you should implement
588 * the ECB_MEMORY_FENCE operations for your cpu/compiler
589 * OR provide pthread.h and link against the posix thread library
590 * of your system.
591 */
592 #include <pthread.h>
593 #define ECB_NEEDS_PTHREADS 1
594 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
595
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
597 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif
599#endif
600
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif
604
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif
608
609/*****************************************************************************/
610
611#define ECB_C99 (__STDC_VERSION__ >= 199901L)
612
613#if __cplusplus
614 #define ecb_inline static inline
615#elif ECB_GCC_VERSION(2,5)
616 #define ecb_inline static __inline__
617#elif ECB_C99
618 #define ecb_inline static inline
619#else
620 #define ecb_inline static
621#endif
622
623#if ECB_GCC_VERSION(3,3)
624 #define ecb_restrict __restrict__
625#elif ECB_C99
626 #define ecb_restrict restrict
627#else
628 #define ecb_restrict
629#endif
630
631typedef int ecb_bool;
632
633#define ECB_CONCAT_(a, b) a ## b
634#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
635#define ECB_STRINGIFY_(a) # a
636#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
637
638#define ecb_function_ ecb_inline
639
640#if ECB_GCC_VERSION(3,1)
641 #define ecb_attribute(attrlist) __attribute__(attrlist)
642 #define ecb_is_constant(expr) __builtin_constant_p (expr)
643 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
644 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
645#else
646 #define ecb_attribute(attrlist)
647 #define ecb_is_constant(expr) 0
648 #define ecb_expect(expr,value) (expr)
649 #define ecb_prefetch(addr,rw,locality)
650#endif
651
652/* no emulation for ecb_decltype */
653#if ECB_GCC_VERSION(4,5)
654 #define ecb_decltype(x) __decltype(x)
655#elif ECB_GCC_VERSION(3,0)
656 #define ecb_decltype(x) __typeof(x)
657#endif
658
659#define ecb_noinline ecb_attribute ((__noinline__))
660#define ecb_noreturn ecb_attribute ((__noreturn__))
661#define ecb_unused ecb_attribute ((__unused__))
662#define ecb_const ecb_attribute ((__const__))
663#define ecb_pure ecb_attribute ((__pure__))
664
665#if ECB_GCC_VERSION(4,3)
666 #define ecb_artificial ecb_attribute ((__artificial__))
667 #define ecb_hot ecb_attribute ((__hot__))
668 #define ecb_cold ecb_attribute ((__cold__))
669#else
670 #define ecb_artificial
671 #define ecb_hot
672 #define ecb_cold
673#endif
674
675/* put around conditional expressions if you are very sure that the */
676/* expression is mostly true or mostly false. note that these return */
677/* booleans, not the expression. */
386#define expect_false(expr) expect ((expr) != 0, 0) 678#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 679#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
680/* for compatibility to the rest of the world */
681#define ecb_likely(expr) ecb_expect_true (expr)
682#define ecb_unlikely(expr) ecb_expect_false (expr)
683
684/* count trailing zero bits and count # of one bits */
685#if ECB_GCC_VERSION(3,4)
686 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
687 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
688 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
689 #define ecb_ctz32(x) __builtin_ctz (x)
690 #define ecb_ctz64(x) __builtin_ctzll (x)
691 #define ecb_popcount32(x) __builtin_popcount (x)
692 /* no popcountll */
693#else
694 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
695 ecb_function_ int
696 ecb_ctz32 (uint32_t x)
697 {
698 int r = 0;
699
700 x &= ~x + 1; /* this isolates the lowest bit */
701
702#if ECB_branchless_on_i386
703 r += !!(x & 0xaaaaaaaa) << 0;
704 r += !!(x & 0xcccccccc) << 1;
705 r += !!(x & 0xf0f0f0f0) << 2;
706 r += !!(x & 0xff00ff00) << 3;
707 r += !!(x & 0xffff0000) << 4;
708#else
709 if (x & 0xaaaaaaaa) r += 1;
710 if (x & 0xcccccccc) r += 2;
711 if (x & 0xf0f0f0f0) r += 4;
712 if (x & 0xff00ff00) r += 8;
713 if (x & 0xffff0000) r += 16;
714#endif
715
716 return r;
717 }
718
719 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
720 ecb_function_ int
721 ecb_ctz64 (uint64_t x)
722 {
723 int shift = x & 0xffffffffU ? 0 : 32;
724 return ecb_ctz32 (x >> shift) + shift;
725 }
726
727 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
728 ecb_function_ int
729 ecb_popcount32 (uint32_t x)
730 {
731 x -= (x >> 1) & 0x55555555;
732 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
733 x = ((x >> 4) + x) & 0x0f0f0f0f;
734 x *= 0x01010101;
735
736 return x >> 24;
737 }
738
739 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
740 ecb_function_ int ecb_ld32 (uint32_t x)
741 {
742 int r = 0;
743
744 if (x >> 16) { x >>= 16; r += 16; }
745 if (x >> 8) { x >>= 8; r += 8; }
746 if (x >> 4) { x >>= 4; r += 4; }
747 if (x >> 2) { x >>= 2; r += 2; }
748 if (x >> 1) { r += 1; }
749
750 return r;
751 }
752
753 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
754 ecb_function_ int ecb_ld64 (uint64_t x)
755 {
756 int r = 0;
757
758 if (x >> 32) { x >>= 32; r += 32; }
759
760 return r + ecb_ld32 (x);
761 }
762#endif
763
764/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767ecb_function_ int
768ecb_popcount64 (uint64_t x)
769{
770 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
771}
772
773ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
774ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
775ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
776ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
777ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
778ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
779ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
780ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
781
782ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
783ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
784ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
785ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
786ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
787ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
788ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
789ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
790
791#if ECB_GCC_VERSION(4,3)
792 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
793 #define ecb_bswap32(x) __builtin_bswap32 (x)
794 #define ecb_bswap64(x) __builtin_bswap64 (x)
795#else
796 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
797 ecb_function_ uint16_t
798 ecb_bswap16 (uint16_t x)
799 {
800 return ecb_rotl16 (x, 8);
801 }
802
803 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
804 ecb_function_ uint32_t
805 ecb_bswap32 (uint32_t x)
806 {
807 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
808 }
809
810 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
811 ecb_function_ uint64_t
812 ecb_bswap64 (uint64_t x)
813 {
814 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
815 }
816#endif
817
818#if ECB_GCC_VERSION(4,5)
819 #define ecb_unreachable() __builtin_unreachable ()
820#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn;
823 ecb_function_ void ecb_unreachable (void) { }
824#endif
825
826/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
828
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;
830ecb_function_ unsigned char
831ecb_byteorder_helper (void)
832{
833 const uint32_t u = 0x11223344;
834 return *(unsigned char *)&u;
835}
836
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841
842#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
846#endif
847
848#if ecb_cplusplus_does_not_suck
849 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
850 template<typename T, int N>
851 static inline int ecb_array_length (const T (&arr)[N])
852 {
853 return N;
854 }
855#else
856 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
857#endif
858
859#endif
860
861/* ECB.H END */
862
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
864# undef ECB_MEMORY_FENCE
865# undef ECB_MEMORY_FENCE_ACQUIRE
866# undef ECB_MEMORY_FENCE_RELEASE
867#endif
868
869#define expect_false(cond) ecb_expect_false (cond)
870#define expect_true(cond) ecb_expect_true (cond)
871#define noinline ecb_noinline
872
388#define inline_size static inline 873#define inline_size ecb_inline
389 874
390#if EV_MINIMAL 875#if EV_FEATURE_CODE
876# define inline_speed ecb_inline
877#else
391# define inline_speed static noinline 878# define inline_speed static noinline
879#endif
880
881#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
882
883#if EV_MINPRI == EV_MAXPRI
884# define ABSPRI(w) (((W)w), 0)
392#else 885#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) 886# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
887#endif
398 888
399#define EMPTY /* required for microsofts broken pseudo-c compiler */ 889#define EMPTY /* required for microsofts broken pseudo-c compiler */
400#define EMPTY2(a,b) /* used to suppress some warnings */ 890#define EMPTY2(a,b) /* used to suppress some warnings */
401 891
402typedef ev_watcher *W; 892typedef ev_watcher *W;
… …
406#define ev_active(w) ((W)(w))->active 896#define ev_active(w) ((W)(w))->active
407#define ev_at(w) ((WT)(w))->at 897#define ev_at(w) ((WT)(w))->at
408 898
409#if EV_USE_REALTIME 899#if EV_USE_REALTIME
410/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 900/* 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 */ 901/* giving it a reasonably high chance of working on typical architectures */
412static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 902static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
413#endif 903#endif
414 904
415#if EV_USE_MONOTONIC 905#if EV_USE_MONOTONIC
416static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 906static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
417#endif 907#endif
418 908
909#ifndef EV_FD_TO_WIN32_HANDLE
910# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
911#endif
912#ifndef EV_WIN32_HANDLE_TO_FD
913# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
914#endif
915#ifndef EV_WIN32_CLOSE_FD
916# define EV_WIN32_CLOSE_FD(fd) close (fd)
917#endif
918
419#ifdef _WIN32 919#ifdef _WIN32
420# include "ev_win32.c" 920# include "ev_win32.c"
421#endif 921#endif
422 922
423/*****************************************************************************/ 923/*****************************************************************************/
424 924
925/* define a suitable floor function (only used by periodics atm) */
926
927#if EV_USE_FLOOR
928# include <math.h>
929# define ev_floor(v) floor (v)
930#else
931
932#include <float.h>
933
934/* a floor() replacement function, should be independent of ev_tstamp type */
935static ev_tstamp noinline
936ev_floor (ev_tstamp v)
937{
938 /* the choice of shift factor is not terribly important */
939#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
940 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
941#else
942 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
943#endif
944
945 /* argument too large for an unsigned long? */
946 if (expect_false (v >= shift))
947 {
948 ev_tstamp f;
949
950 if (v == v - 1.)
951 return v; /* very large number */
952
953 f = shift * ev_floor (v * (1. / shift));
954 return f + ev_floor (v - f);
955 }
956
957 /* special treatment for negative args? */
958 if (expect_false (v < 0.))
959 {
960 ev_tstamp f = -ev_floor (-v);
961
962 return f - (f == v ? 0 : 1);
963 }
964
965 /* fits into an unsigned long */
966 return (unsigned long)v;
967}
968
969#endif
970
971/*****************************************************************************/
972
973#ifdef __linux
974# include <sys/utsname.h>
975#endif
976
977static unsigned int noinline ecb_cold
978ev_linux_version (void)
979{
980#ifdef __linux
981 unsigned int v = 0;
982 struct utsname buf;
983 int i;
984 char *p = buf.release;
985
986 if (uname (&buf))
987 return 0;
988
989 for (i = 3+1; --i; )
990 {
991 unsigned int c = 0;
992
993 for (;;)
994 {
995 if (*p >= '0' && *p <= '9')
996 c = c * 10 + *p++ - '0';
997 else
998 {
999 p += *p == '.';
1000 break;
1001 }
1002 }
1003
1004 v = (v << 8) | c;
1005 }
1006
1007 return v;
1008#else
1009 return 0;
1010#endif
1011}
1012
1013/*****************************************************************************/
1014
1015#if EV_AVOID_STDIO
1016static void noinline ecb_cold
1017ev_printerr (const char *msg)
1018{
1019 write (STDERR_FILENO, msg, strlen (msg));
1020}
1021#endif
1022
425static void (*syserr_cb)(const char *msg); 1023static void (*syserr_cb)(const char *msg);
426 1024
427void 1025void ecb_cold
428ev_set_syserr_cb (void (*cb)(const char *msg)) 1026ev_set_syserr_cb (void (*cb)(const char *msg))
429{ 1027{
430 syserr_cb = cb; 1028 syserr_cb = cb;
431} 1029}
432 1030
433static void noinline 1031static void noinline ecb_cold
434ev_syserr (const char *msg) 1032ev_syserr (const char *msg)
435{ 1033{
436 if (!msg) 1034 if (!msg)
437 msg = "(libev) system error"; 1035 msg = "(libev) system error";
438 1036
439 if (syserr_cb) 1037 if (syserr_cb)
440 syserr_cb (msg); 1038 syserr_cb (msg);
441 else 1039 else
442 { 1040 {
1041#if EV_AVOID_STDIO
1042 ev_printerr (msg);
1043 ev_printerr (": ");
1044 ev_printerr (strerror (errno));
1045 ev_printerr ("\n");
1046#else
443 perror (msg); 1047 perror (msg);
1048#endif
444 abort (); 1049 abort ();
445 } 1050 }
446} 1051}
447 1052
448static void * 1053static void *
449ev_realloc_emul (void *ptr, long size) 1054ev_realloc_emul (void *ptr, long size)
450{ 1055{
1056#if __GLIBC__
1057 return realloc (ptr, size);
1058#else
451 /* some systems, notably openbsd and darwin, fail to properly 1059 /* some systems, notably openbsd and darwin, fail to properly
452 * implement realloc (x, 0) (as required by both ansi c-98 and 1060 * implement realloc (x, 0) (as required by both ansi c-89 and
453 * the single unix specification, so work around them here. 1061 * the single unix specification, so work around them here.
454 */ 1062 */
455 1063
456 if (size) 1064 if (size)
457 return realloc (ptr, size); 1065 return realloc (ptr, size);
458 1066
459 free (ptr); 1067 free (ptr);
460 return 0; 1068 return 0;
1069#endif
461} 1070}
462 1071
463static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1072static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
464 1073
465void 1074void ecb_cold
466ev_set_allocator (void *(*cb)(void *ptr, long size)) 1075ev_set_allocator (void *(*cb)(void *ptr, long size))
467{ 1076{
468 alloc = cb; 1077 alloc = cb;
469} 1078}
470 1079
… …
473{ 1082{
474 ptr = alloc (ptr, size); 1083 ptr = alloc (ptr, size);
475 1084
476 if (!ptr && size) 1085 if (!ptr && size)
477 { 1086 {
1087#if EV_AVOID_STDIO
1088 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1089#else
478 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1090 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1091#endif
479 abort (); 1092 abort ();
480 } 1093 }
481 1094
482 return ptr; 1095 return ptr;
483} 1096}
… …
485#define ev_malloc(size) ev_realloc (0, (size)) 1098#define ev_malloc(size) ev_realloc (0, (size))
486#define ev_free(ptr) ev_realloc ((ptr), 0) 1099#define ev_free(ptr) ev_realloc ((ptr), 0)
487 1100
488/*****************************************************************************/ 1101/*****************************************************************************/
489 1102
1103/* set in reify when reification needed */
1104#define EV_ANFD_REIFY 1
1105
490/* file descriptor info structure */ 1106/* file descriptor info structure */
491typedef struct 1107typedef struct
492{ 1108{
493 WL head; 1109 WL head;
494 unsigned char events; /* the events watched for */ 1110 unsigned char events; /* the events watched for */
495 unsigned char reify; /* flag set when this ANFD needs reification */ 1111 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 */ 1112 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
497 unsigned char unused; 1113 unsigned char unused;
498#if EV_USE_EPOLL 1114#if EV_USE_EPOLL
499 unsigned int egen; /* generation counter to counter epoll bugs */ 1115 unsigned int egen; /* generation counter to counter epoll bugs */
500#endif 1116#endif
501#if EV_SELECT_IS_WINSOCKET 1117#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
502 SOCKET handle; 1118 SOCKET handle;
1119#endif
1120#if EV_USE_IOCP
1121 OVERLAPPED or, ow;
503#endif 1122#endif
504} ANFD; 1123} ANFD;
505 1124
506/* stores the pending event set for a given watcher */ 1125/* stores the pending event set for a given watcher */
507typedef struct 1126typedef struct
… …
562 1181
563 static int ev_default_loop_ptr; 1182 static int ev_default_loop_ptr;
564 1183
565#endif 1184#endif
566 1185
1186#if EV_FEATURE_API
1187# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
1188# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
1189# define EV_INVOKE_PENDING invoke_cb (EV_A)
1190#else
1191# define EV_RELEASE_CB (void)0
1192# define EV_ACQUIRE_CB (void)0
1193# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
1194#endif
1195
1196#define EVBREAK_RECURSE 0x80
1197
567/*****************************************************************************/ 1198/*****************************************************************************/
568 1199
1200#ifndef EV_HAVE_EV_TIME
569ev_tstamp 1201ev_tstamp
570ev_time (void) 1202ev_time (void)
571{ 1203{
572#if EV_USE_REALTIME 1204#if EV_USE_REALTIME
573 if (expect_true (have_realtime)) 1205 if (expect_true (have_realtime))
… …
580 1212
581 struct timeval tv; 1213 struct timeval tv;
582 gettimeofday (&tv, 0); 1214 gettimeofday (&tv, 0);
583 return tv.tv_sec + tv.tv_usec * 1e-6; 1215 return tv.tv_sec + tv.tv_usec * 1e-6;
584} 1216}
1217#endif
585 1218
586inline_size ev_tstamp 1219inline_size ev_tstamp
587get_clock (void) 1220get_clock (void)
588{ 1221{
589#if EV_USE_MONOTONIC 1222#if EV_USE_MONOTONIC
… …
612 if (delay > 0.) 1245 if (delay > 0.)
613 { 1246 {
614#if EV_USE_NANOSLEEP 1247#if EV_USE_NANOSLEEP
615 struct timespec ts; 1248 struct timespec ts;
616 1249
617 ts.tv_sec = (time_t)delay; 1250 EV_TS_SET (ts, delay);
618 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
619
620 nanosleep (&ts, 0); 1251 nanosleep (&ts, 0);
621#elif defined(_WIN32) 1252#elif defined(_WIN32)
622 Sleep ((unsigned long)(delay * 1e3)); 1253 Sleep ((unsigned long)(delay * 1e3));
623#else 1254#else
624 struct timeval tv; 1255 struct timeval tv;
625 1256
626 tv.tv_sec = (time_t)delay;
627 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
628
629 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1257 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
630 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 1258 /* something not guaranteed by newer posix versions, but guaranteed */
631 /* by older ones */ 1259 /* by older ones */
1260 EV_TV_SET (tv, delay);
632 select (0, 0, 0, 0, &tv); 1261 select (0, 0, 0, 0, &tv);
633#endif 1262#endif
634 } 1263 }
635} 1264}
636 1265
637/*****************************************************************************/ 1266/*****************************************************************************/
638 1267
639#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1268#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
640 1269
641/* find a suitable new size for the given array, */ 1270/* find a suitable new size for the given array, */
642/* hopefully by rounding to a ncie-to-malloc size */ 1271/* hopefully by rounding to a nice-to-malloc size */
643inline_size int 1272inline_size int
644array_nextsize (int elem, int cur, int cnt) 1273array_nextsize (int elem, int cur, int cnt)
645{ 1274{
646 int ncur = cur + 1; 1275 int ncur = cur + 1;
647 1276
… …
659 } 1288 }
660 1289
661 return ncur; 1290 return ncur;
662} 1291}
663 1292
664static noinline void * 1293static void * noinline ecb_cold
665array_realloc (int elem, void *base, int *cur, int cnt) 1294array_realloc (int elem, void *base, int *cur, int cnt)
666{ 1295{
667 *cur = array_nextsize (elem, *cur, cnt); 1296 *cur = array_nextsize (elem, *cur, cnt);
668 return ev_realloc (base, elem * *cur); 1297 return ev_realloc (base, elem * *cur);
669} 1298}
… …
672 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1301 memset ((void *)(base), 0, sizeof (*(base)) * (count))
673 1302
674#define array_needsize(type,base,cur,cnt,init) \ 1303#define array_needsize(type,base,cur,cnt,init) \
675 if (expect_false ((cnt) > (cur))) \ 1304 if (expect_false ((cnt) > (cur))) \
676 { \ 1305 { \
677 int ocur_ = (cur); \ 1306 int ecb_unused ocur_ = (cur); \
678 (base) = (type *)array_realloc \ 1307 (base) = (type *)array_realloc \
679 (sizeof (type), (base), &(cur), (cnt)); \ 1308 (sizeof (type), (base), &(cur), (cnt)); \
680 init ((base) + (ocur_), (cur) - ocur_); \ 1309 init ((base) + (ocur_), (cur) - ocur_); \
681 } 1310 }
682 1311
… …
743} 1372}
744 1373
745/*****************************************************************************/ 1374/*****************************************************************************/
746 1375
747inline_speed void 1376inline_speed void
748fd_event (EV_P_ int fd, int revents) 1377fd_event_nocheck (EV_P_ int fd, int revents)
749{ 1378{
750 ANFD *anfd = anfds + fd; 1379 ANFD *anfd = anfds + fd;
751 ev_io *w; 1380 ev_io *w;
752 1381
753 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1382 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
757 if (ev) 1386 if (ev)
758 ev_feed_event (EV_A_ (W)w, ev); 1387 ev_feed_event (EV_A_ (W)w, ev);
759 } 1388 }
760} 1389}
761 1390
1391/* do not submit kernel events for fds that have reify set */
1392/* because that means they changed while we were polling for new events */
1393inline_speed void
1394fd_event (EV_P_ int fd, int revents)
1395{
1396 ANFD *anfd = anfds + fd;
1397
1398 if (expect_true (!anfd->reify))
1399 fd_event_nocheck (EV_A_ fd, revents);
1400}
1401
762void 1402void
763ev_feed_fd_event (EV_P_ int fd, int revents) 1403ev_feed_fd_event (EV_P_ int fd, int revents)
764{ 1404{
765 if (fd >= 0 && fd < anfdmax) 1405 if (fd >= 0 && fd < anfdmax)
766 fd_event (EV_A_ fd, revents); 1406 fd_event_nocheck (EV_A_ fd, revents);
767} 1407}
768 1408
769/* make sure the external fd watch events are in-sync */ 1409/* make sure the external fd watch events are in-sync */
770/* with the kernel/libev internal state */ 1410/* with the kernel/libev internal state */
771inline_size void 1411inline_size void
772fd_reify (EV_P) 1412fd_reify (EV_P)
773{ 1413{
774 int i; 1414 int i;
775 1415
1416#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1417 for (i = 0; i < fdchangecnt; ++i)
1418 {
1419 int fd = fdchanges [i];
1420 ANFD *anfd = anfds + fd;
1421
1422 if (anfd->reify & EV__IOFDSET && anfd->head)
1423 {
1424 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1425
1426 if (handle != anfd->handle)
1427 {
1428 unsigned long arg;
1429
1430 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1431
1432 /* handle changed, but fd didn't - we need to do it in two steps */
1433 backend_modify (EV_A_ fd, anfd->events, 0);
1434 anfd->events = 0;
1435 anfd->handle = handle;
1436 }
1437 }
1438 }
1439#endif
1440
776 for (i = 0; i < fdchangecnt; ++i) 1441 for (i = 0; i < fdchangecnt; ++i)
777 { 1442 {
778 int fd = fdchanges [i]; 1443 int fd = fdchanges [i];
779 ANFD *anfd = anfds + fd; 1444 ANFD *anfd = anfds + fd;
780 ev_io *w; 1445 ev_io *w;
781 1446
782 unsigned char events = 0; 1447 unsigned char o_events = anfd->events;
1448 unsigned char o_reify = anfd->reify;
783 1449
784 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1450 anfd->reify = 0;
785 events |= (unsigned char)w->events;
786 1451
787#if EV_SELECT_IS_WINSOCKET 1452 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
788 if (events)
789 { 1453 {
790 unsigned long arg; 1454 anfd->events = 0;
791 #ifdef EV_FD_TO_WIN32_HANDLE 1455
792 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1456 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
793 #else 1457 anfd->events |= (unsigned char)w->events;
794 anfd->handle = _get_osfhandle (fd); 1458
795 #endif 1459 if (o_events != anfd->events)
796 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1460 o_reify = EV__IOFDSET; /* actually |= */
797 } 1461 }
798#endif
799 1462
800 { 1463 if (o_reify & EV__IOFDSET)
801 unsigned char o_events = anfd->events;
802 unsigned char o_reify = anfd->reify;
803
804 anfd->reify = 0;
805 anfd->events = events;
806
807 if (o_events != events || o_reify & EV__IOFDSET)
808 backend_modify (EV_A_ fd, o_events, events); 1464 backend_modify (EV_A_ fd, o_events, anfd->events);
809 }
810 } 1465 }
811 1466
812 fdchangecnt = 0; 1467 fdchangecnt = 0;
813} 1468}
814 1469
… …
826 fdchanges [fdchangecnt - 1] = fd; 1481 fdchanges [fdchangecnt - 1] = fd;
827 } 1482 }
828} 1483}
829 1484
830/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1485/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
831inline_speed void 1486inline_speed void ecb_cold
832fd_kill (EV_P_ int fd) 1487fd_kill (EV_P_ int fd)
833{ 1488{
834 ev_io *w; 1489 ev_io *w;
835 1490
836 while ((w = (ev_io *)anfds [fd].head)) 1491 while ((w = (ev_io *)anfds [fd].head))
… …
838 ev_io_stop (EV_A_ w); 1493 ev_io_stop (EV_A_ w);
839 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1494 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
840 } 1495 }
841} 1496}
842 1497
843/* check whether the given fd is atcually valid, for error recovery */ 1498/* check whether the given fd is actually valid, for error recovery */
844inline_size int 1499inline_size int ecb_cold
845fd_valid (int fd) 1500fd_valid (int fd)
846{ 1501{
847#ifdef _WIN32 1502#ifdef _WIN32
848 return _get_osfhandle (fd) != -1; 1503 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
849#else 1504#else
850 return fcntl (fd, F_GETFD) != -1; 1505 return fcntl (fd, F_GETFD) != -1;
851#endif 1506#endif
852} 1507}
853 1508
854/* called on EBADF to verify fds */ 1509/* called on EBADF to verify fds */
855static void noinline 1510static void noinline ecb_cold
856fd_ebadf (EV_P) 1511fd_ebadf (EV_P)
857{ 1512{
858 int fd; 1513 int fd;
859 1514
860 for (fd = 0; fd < anfdmax; ++fd) 1515 for (fd = 0; fd < anfdmax; ++fd)
… …
862 if (!fd_valid (fd) && errno == EBADF) 1517 if (!fd_valid (fd) && errno == EBADF)
863 fd_kill (EV_A_ fd); 1518 fd_kill (EV_A_ fd);
864} 1519}
865 1520
866/* called on ENOMEM in select/poll to kill some fds and retry */ 1521/* called on ENOMEM in select/poll to kill some fds and retry */
867static void noinline 1522static void noinline ecb_cold
868fd_enomem (EV_P) 1523fd_enomem (EV_P)
869{ 1524{
870 int fd; 1525 int fd;
871 1526
872 for (fd = anfdmax; fd--; ) 1527 for (fd = anfdmax; fd--; )
873 if (anfds [fd].events) 1528 if (anfds [fd].events)
874 { 1529 {
875 fd_kill (EV_A_ fd); 1530 fd_kill (EV_A_ fd);
876 return; 1531 break;
877 } 1532 }
878} 1533}
879 1534
880/* usually called after fork if backend needs to re-arm all fds from scratch */ 1535/* usually called after fork if backend needs to re-arm all fds from scratch */
881static void noinline 1536static void noinline
… …
886 for (fd = 0; fd < anfdmax; ++fd) 1541 for (fd = 0; fd < anfdmax; ++fd)
887 if (anfds [fd].events) 1542 if (anfds [fd].events)
888 { 1543 {
889 anfds [fd].events = 0; 1544 anfds [fd].events = 0;
890 anfds [fd].emask = 0; 1545 anfds [fd].emask = 0;
891 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1546 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
892 } 1547 }
893} 1548}
894 1549
1550/* used to prepare libev internal fd's */
1551/* this is not fork-safe */
1552inline_speed void
1553fd_intern (int fd)
1554{
1555#ifdef _WIN32
1556 unsigned long arg = 1;
1557 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1558#else
1559 fcntl (fd, F_SETFD, FD_CLOEXEC);
1560 fcntl (fd, F_SETFL, O_NONBLOCK);
1561#endif
1562}
1563
895/*****************************************************************************/ 1564/*****************************************************************************/
896 1565
897/* 1566/*
898 * the heap functions want a real array index. array index 0 uis guaranteed to not 1567 * the heap functions want a real array index. array index 0 is guaranteed to not
899 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1568 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
900 * the branching factor of the d-tree. 1569 * the branching factor of the d-tree.
901 */ 1570 */
902 1571
903/* 1572/*
… …
971 1640
972 for (;;) 1641 for (;;)
973 { 1642 {
974 int c = k << 1; 1643 int c = k << 1;
975 1644
976 if (c > N + HEAP0 - 1) 1645 if (c >= N + HEAP0)
977 break; 1646 break;
978 1647
979 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1648 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
980 ? 1 : 0; 1649 ? 1 : 0;
981 1650
… …
1017 1686
1018/* move an element suitably so it is in a correct place */ 1687/* move an element suitably so it is in a correct place */
1019inline_size void 1688inline_size void
1020adjustheap (ANHE *heap, int N, int k) 1689adjustheap (ANHE *heap, int N, int k)
1021{ 1690{
1022 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1691 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1023 upheap (heap, k); 1692 upheap (heap, k);
1024 else 1693 else
1025 downheap (heap, N, k); 1694 downheap (heap, N, k);
1026} 1695}
1027 1696
… …
1040/*****************************************************************************/ 1709/*****************************************************************************/
1041 1710
1042/* associate signal watchers to a signal signal */ 1711/* associate signal watchers to a signal signal */
1043typedef struct 1712typedef struct
1044{ 1713{
1714 EV_ATOMIC_T pending;
1715#if EV_MULTIPLICITY
1716 EV_P;
1717#endif
1045 WL head; 1718 WL head;
1046 EV_ATOMIC_T gotsig;
1047} ANSIG; 1719} ANSIG;
1048 1720
1049static ANSIG *signals; 1721static ANSIG signals [EV_NSIG - 1];
1050static int signalmax;
1051
1052static EV_ATOMIC_T gotsig;
1053 1722
1054/*****************************************************************************/ 1723/*****************************************************************************/
1055 1724
1056/* used to prepare libev internal fd's */ 1725#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1057/* this is not fork-safe */
1058inline_speed void
1059fd_intern (int fd)
1060{
1061#ifdef _WIN32
1062 unsigned long arg = 1;
1063 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1064#else
1065 fcntl (fd, F_SETFD, FD_CLOEXEC);
1066 fcntl (fd, F_SETFL, O_NONBLOCK);
1067#endif
1068}
1069 1726
1070static void noinline 1727static void noinline ecb_cold
1071evpipe_init (EV_P) 1728evpipe_init (EV_P)
1072{ 1729{
1073 if (!ev_is_active (&pipe_w)) 1730 if (!ev_is_active (&pipe_w))
1074 { 1731 {
1075#if EV_USE_EVENTFD 1732# if EV_USE_EVENTFD
1733 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1734 if (evfd < 0 && errno == EINVAL)
1076 if ((evfd = eventfd (0, 0)) >= 0) 1735 evfd = eventfd (0, 0);
1736
1737 if (evfd >= 0)
1077 { 1738 {
1078 evpipe [0] = -1; 1739 evpipe [0] = -1;
1079 fd_intern (evfd); 1740 fd_intern (evfd); /* doing it twice doesn't hurt */
1080 ev_io_set (&pipe_w, evfd, EV_READ); 1741 ev_io_set (&pipe_w, evfd, EV_READ);
1081 } 1742 }
1082 else 1743 else
1083#endif 1744# endif
1084 { 1745 {
1085 while (pipe (evpipe)) 1746 while (pipe (evpipe))
1086 ev_syserr ("(libev) error creating signal/async pipe"); 1747 ev_syserr ("(libev) error creating signal/async pipe");
1087 1748
1088 fd_intern (evpipe [0]); 1749 fd_intern (evpipe [0]);
… …
1093 ev_io_start (EV_A_ &pipe_w); 1754 ev_io_start (EV_A_ &pipe_w);
1094 ev_unref (EV_A); /* watcher should not keep loop alive */ 1755 ev_unref (EV_A); /* watcher should not keep loop alive */
1095 } 1756 }
1096} 1757}
1097 1758
1098inline_size void 1759inline_speed void
1099evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1760evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1100{ 1761{
1101 if (!*flag) 1762 if (expect_true (*flag))
1763 return;
1764
1765 *flag = 1;
1766
1767 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1768
1769 pipe_write_skipped = 1;
1770
1771 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1772
1773 if (pipe_write_wanted)
1102 { 1774 {
1775 int old_errno;
1776
1777 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1778
1103 int old_errno = errno; /* save errno because write might clobber it */ 1779 old_errno = errno; /* save errno because write will clobber it */
1104
1105 *flag = 1;
1106 1780
1107#if EV_USE_EVENTFD 1781#if EV_USE_EVENTFD
1108 if (evfd >= 0) 1782 if (evfd >= 0)
1109 { 1783 {
1110 uint64_t counter = 1; 1784 uint64_t counter = 1;
1111 write (evfd, &counter, sizeof (uint64_t)); 1785 write (evfd, &counter, sizeof (uint64_t));
1112 } 1786 }
1113 else 1787 else
1114#endif 1788#endif
1789 {
1790 /* win32 people keep sending patches that change this write() to send() */
1791 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1792 /* so when you think this write should be a send instead, please find out */
1793 /* where your send() is from - it's definitely not the microsoft send, and */
1794 /* tell me. thank you. */
1115 write (evpipe [1], &old_errno, 1); 1795 write (evpipe [1], &(evpipe [1]), 1);
1796 }
1116 1797
1117 errno = old_errno; 1798 errno = old_errno;
1118 } 1799 }
1119} 1800}
1120 1801
1121/* called whenever the libev signal pipe */ 1802/* called whenever the libev signal pipe */
1122/* got some events (signal, async) */ 1803/* got some events (signal, async) */
1123static void 1804static void
1124pipecb (EV_P_ ev_io *iow, int revents) 1805pipecb (EV_P_ ev_io *iow, int revents)
1125{ 1806{
1807 int i;
1808
1809 if (revents & EV_READ)
1810 {
1126#if EV_USE_EVENTFD 1811#if EV_USE_EVENTFD
1127 if (evfd >= 0) 1812 if (evfd >= 0)
1128 { 1813 {
1129 uint64_t counter; 1814 uint64_t counter;
1130 read (evfd, &counter, sizeof (uint64_t)); 1815 read (evfd, &counter, sizeof (uint64_t));
1131 } 1816 }
1132 else 1817 else
1133#endif 1818#endif
1134 { 1819 {
1135 char dummy; 1820 char dummy;
1821 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1136 read (evpipe [0], &dummy, 1); 1822 read (evpipe [0], &dummy, 1);
1823 }
1824 }
1825
1826 pipe_write_skipped = 0;
1827
1828#if EV_SIGNAL_ENABLE
1829 if (sig_pending)
1137 } 1830 {
1831 sig_pending = 0;
1138 1832
1139 if (gotsig && ev_is_default_loop (EV_A)) 1833 for (i = EV_NSIG - 1; i--; )
1140 { 1834 if (expect_false (signals [i].pending))
1141 int signum;
1142 gotsig = 0;
1143
1144 for (signum = signalmax; signum--; )
1145 if (signals [signum].gotsig)
1146 ev_feed_signal_event (EV_A_ signum + 1); 1835 ev_feed_signal_event (EV_A_ i + 1);
1147 } 1836 }
1837#endif
1148 1838
1149#if EV_ASYNC_ENABLE 1839#if EV_ASYNC_ENABLE
1150 if (gotasync) 1840 if (async_pending)
1151 { 1841 {
1152 int i; 1842 async_pending = 0;
1153 gotasync = 0;
1154 1843
1155 for (i = asynccnt; i--; ) 1844 for (i = asynccnt; i--; )
1156 if (asyncs [i]->sent) 1845 if (asyncs [i]->sent)
1157 { 1846 {
1158 asyncs [i]->sent = 0; 1847 asyncs [i]->sent = 0;
… …
1162#endif 1851#endif
1163} 1852}
1164 1853
1165/*****************************************************************************/ 1854/*****************************************************************************/
1166 1855
1856void
1857ev_feed_signal (int signum)
1858{
1859#if EV_MULTIPLICITY
1860 EV_P = signals [signum - 1].loop;
1861
1862 if (!EV_A)
1863 return;
1864#endif
1865
1866 if (!ev_active (&pipe_w))
1867 return;
1868
1869 signals [signum - 1].pending = 1;
1870 evpipe_write (EV_A_ &sig_pending);
1871}
1872
1167static void 1873static void
1168ev_sighandler (int signum) 1874ev_sighandler (int signum)
1169{ 1875{
1170#if EV_MULTIPLICITY
1171 struct ev_loop *loop = &default_loop_struct;
1172#endif
1173
1174#if _WIN32 1876#ifdef _WIN32
1175 signal (signum, ev_sighandler); 1877 signal (signum, ev_sighandler);
1176#endif 1878#endif
1177 1879
1178 signals [signum - 1].gotsig = 1; 1880 ev_feed_signal (signum);
1179 evpipe_write (EV_A_ &gotsig);
1180} 1881}
1181 1882
1182void noinline 1883void noinline
1183ev_feed_signal_event (EV_P_ int signum) 1884ev_feed_signal_event (EV_P_ int signum)
1184{ 1885{
1185 WL w; 1886 WL w;
1186 1887
1888 if (expect_false (signum <= 0 || signum > EV_NSIG))
1889 return;
1890
1891 --signum;
1892
1187#if EV_MULTIPLICITY 1893#if EV_MULTIPLICITY
1188 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1894 /* it is permissible to try to feed a signal to the wrong loop */
1189#endif 1895 /* or, likely more useful, feeding a signal nobody is waiting for */
1190 1896
1191 --signum; 1897 if (expect_false (signals [signum].loop != EV_A))
1192
1193 if (signum < 0 || signum >= signalmax)
1194 return; 1898 return;
1899#endif
1195 1900
1196 signals [signum].gotsig = 0; 1901 signals [signum].pending = 0;
1197 1902
1198 for (w = signals [signum].head; w; w = w->next) 1903 for (w = signals [signum].head; w; w = w->next)
1199 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1904 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1200} 1905}
1201 1906
1907#if EV_USE_SIGNALFD
1908static void
1909sigfdcb (EV_P_ ev_io *iow, int revents)
1910{
1911 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1912
1913 for (;;)
1914 {
1915 ssize_t res = read (sigfd, si, sizeof (si));
1916
1917 /* not ISO-C, as res might be -1, but works with SuS */
1918 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1919 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1920
1921 if (res < (ssize_t)sizeof (si))
1922 break;
1923 }
1924}
1925#endif
1926
1927#endif
1928
1202/*****************************************************************************/ 1929/*****************************************************************************/
1203 1930
1931#if EV_CHILD_ENABLE
1204static WL childs [EV_PID_HASHSIZE]; 1932static WL childs [EV_PID_HASHSIZE];
1205
1206#ifndef _WIN32
1207 1933
1208static ev_signal childev; 1934static ev_signal childev;
1209 1935
1210#ifndef WIFCONTINUED 1936#ifndef WIFCONTINUED
1211# define WIFCONTINUED(status) 0 1937# define WIFCONTINUED(status) 0
… …
1216child_reap (EV_P_ int chain, int pid, int status) 1942child_reap (EV_P_ int chain, int pid, int status)
1217{ 1943{
1218 ev_child *w; 1944 ev_child *w;
1219 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1945 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1220 1946
1221 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1947 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1222 { 1948 {
1223 if ((w->pid == pid || !w->pid) 1949 if ((w->pid == pid || !w->pid)
1224 && (!traced || (w->flags & 1))) 1950 && (!traced || (w->flags & 1)))
1225 { 1951 {
1226 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1952 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1251 /* make sure we are called again until all children have been reaped */ 1977 /* make sure we are called again until all children have been reaped */
1252 /* we need to do it this way so that the callback gets called before we continue */ 1978 /* we need to do it this way so that the callback gets called before we continue */
1253 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1979 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1254 1980
1255 child_reap (EV_A_ pid, pid, status); 1981 child_reap (EV_A_ pid, pid, status);
1256 if (EV_PID_HASHSIZE > 1) 1982 if ((EV_PID_HASHSIZE) > 1)
1257 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1983 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1258} 1984}
1259 1985
1260#endif 1986#endif
1261 1987
1262/*****************************************************************************/ 1988/*****************************************************************************/
1263 1989
1990#if EV_USE_IOCP
1991# include "ev_iocp.c"
1992#endif
1264#if EV_USE_PORT 1993#if EV_USE_PORT
1265# include "ev_port.c" 1994# include "ev_port.c"
1266#endif 1995#endif
1267#if EV_USE_KQUEUE 1996#if EV_USE_KQUEUE
1268# include "ev_kqueue.c" 1997# include "ev_kqueue.c"
… …
1275#endif 2004#endif
1276#if EV_USE_SELECT 2005#if EV_USE_SELECT
1277# include "ev_select.c" 2006# include "ev_select.c"
1278#endif 2007#endif
1279 2008
1280int 2009int ecb_cold
1281ev_version_major (void) 2010ev_version_major (void)
1282{ 2011{
1283 return EV_VERSION_MAJOR; 2012 return EV_VERSION_MAJOR;
1284} 2013}
1285 2014
1286int 2015int ecb_cold
1287ev_version_minor (void) 2016ev_version_minor (void)
1288{ 2017{
1289 return EV_VERSION_MINOR; 2018 return EV_VERSION_MINOR;
1290} 2019}
1291 2020
1292/* return true if we are running with elevated privileges and should ignore env variables */ 2021/* return true if we are running with elevated privileges and should ignore env variables */
1293int inline_size 2022int inline_size ecb_cold
1294enable_secure (void) 2023enable_secure (void)
1295{ 2024{
1296#ifdef _WIN32 2025#ifdef _WIN32
1297 return 0; 2026 return 0;
1298#else 2027#else
1299 return getuid () != geteuid () 2028 return getuid () != geteuid ()
1300 || getgid () != getegid (); 2029 || getgid () != getegid ();
1301#endif 2030#endif
1302} 2031}
1303 2032
1304unsigned int 2033unsigned int ecb_cold
1305ev_supported_backends (void) 2034ev_supported_backends (void)
1306{ 2035{
1307 unsigned int flags = 0; 2036 unsigned int flags = 0;
1308 2037
1309 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2038 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1313 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2042 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1314 2043
1315 return flags; 2044 return flags;
1316} 2045}
1317 2046
1318unsigned int 2047unsigned int ecb_cold
1319ev_recommended_backends (void) 2048ev_recommended_backends (void)
1320{ 2049{
1321 unsigned int flags = ev_supported_backends (); 2050 unsigned int flags = ev_supported_backends ();
1322 2051
1323#ifndef __NetBSD__ 2052#ifndef __NetBSD__
… …
1328#ifdef __APPLE__ 2057#ifdef __APPLE__
1329 /* only select works correctly on that "unix-certified" platform */ 2058 /* only select works correctly on that "unix-certified" platform */
1330 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2059 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1331 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2060 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1332#endif 2061#endif
2062#ifdef __FreeBSD__
2063 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2064#endif
1333 2065
1334 return flags; 2066 return flags;
1335} 2067}
1336 2068
1337unsigned int 2069unsigned int ecb_cold
1338ev_embeddable_backends (void) 2070ev_embeddable_backends (void)
1339{ 2071{
1340 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2072 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1341 2073
1342 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2074 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1343 /* please fix it and tell me how to detect the fix */ 2075 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1344 flags &= ~EVBACKEND_EPOLL; 2076 flags &= ~EVBACKEND_EPOLL;
1345 2077
1346 return flags; 2078 return flags;
1347} 2079}
1348 2080
1349unsigned int 2081unsigned int
1350ev_backend (EV_P) 2082ev_backend (EV_P)
1351{ 2083{
1352 return backend; 2084 return backend;
1353} 2085}
1354 2086
2087#if EV_FEATURE_API
1355unsigned int 2088unsigned int
1356ev_loop_count (EV_P) 2089ev_iteration (EV_P)
1357{ 2090{
1358 return loop_count; 2091 return loop_count;
2092}
2093
2094unsigned int
2095ev_depth (EV_P)
2096{
2097 return loop_depth;
1359} 2098}
1360 2099
1361void 2100void
1362ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2101ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1363{ 2102{
… …
1368ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2107ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1369{ 2108{
1370 timeout_blocktime = interval; 2109 timeout_blocktime = interval;
1371} 2110}
1372 2111
2112void
2113ev_set_userdata (EV_P_ void *data)
2114{
2115 userdata = data;
2116}
2117
2118void *
2119ev_userdata (EV_P)
2120{
2121 return userdata;
2122}
2123
2124void
2125ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
2126{
2127 invoke_cb = invoke_pending_cb;
2128}
2129
2130void
2131ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
2132{
2133 release_cb = release;
2134 acquire_cb = acquire;
2135}
2136#endif
2137
1373/* initialise a loop structure, must be zero-initialised */ 2138/* initialise a loop structure, must be zero-initialised */
1374static void noinline 2139static void noinline ecb_cold
1375loop_init (EV_P_ unsigned int flags) 2140loop_init (EV_P_ unsigned int flags)
1376{ 2141{
1377 if (!backend) 2142 if (!backend)
1378 { 2143 {
2144 origflags = flags;
2145
1379#if EV_USE_REALTIME 2146#if EV_USE_REALTIME
1380 if (!have_realtime) 2147 if (!have_realtime)
1381 { 2148 {
1382 struct timespec ts; 2149 struct timespec ts;
1383 2150
… …
1394 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2161 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1395 have_monotonic = 1; 2162 have_monotonic = 1;
1396 } 2163 }
1397#endif 2164#endif
1398 2165
1399 ev_rt_now = ev_time ();
1400 mn_now = get_clock ();
1401 now_floor = mn_now;
1402 rtmn_diff = ev_rt_now - mn_now;
1403
1404 io_blocktime = 0.;
1405 timeout_blocktime = 0.;
1406 backend = 0;
1407 backend_fd = -1;
1408 gotasync = 0;
1409#if EV_USE_INOTIFY
1410 fs_fd = -2;
1411#endif
1412
1413 /* pid check not overridable via env */ 2166 /* pid check not overridable via env */
1414#ifndef _WIN32 2167#ifndef _WIN32
1415 if (flags & EVFLAG_FORKCHECK) 2168 if (flags & EVFLAG_FORKCHECK)
1416 curpid = getpid (); 2169 curpid = getpid ();
1417#endif 2170#endif
… …
1419 if (!(flags & EVFLAG_NOENV) 2172 if (!(flags & EVFLAG_NOENV)
1420 && !enable_secure () 2173 && !enable_secure ()
1421 && getenv ("LIBEV_FLAGS")) 2174 && getenv ("LIBEV_FLAGS"))
1422 flags = atoi (getenv ("LIBEV_FLAGS")); 2175 flags = atoi (getenv ("LIBEV_FLAGS"));
1423 2176
1424 if (!(flags & 0x0000ffffU)) 2177 ev_rt_now = ev_time ();
2178 mn_now = get_clock ();
2179 now_floor = mn_now;
2180 rtmn_diff = ev_rt_now - mn_now;
2181#if EV_FEATURE_API
2182 invoke_cb = ev_invoke_pending;
2183#endif
2184
2185 io_blocktime = 0.;
2186 timeout_blocktime = 0.;
2187 backend = 0;
2188 backend_fd = -1;
2189 sig_pending = 0;
2190#if EV_ASYNC_ENABLE
2191 async_pending = 0;
2192#endif
2193 pipe_write_skipped = 0;
2194 pipe_write_wanted = 0;
2195#if EV_USE_INOTIFY
2196 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2197#endif
2198#if EV_USE_SIGNALFD
2199 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2200#endif
2201
2202 if (!(flags & EVBACKEND_MASK))
1425 flags |= ev_recommended_backends (); 2203 flags |= ev_recommended_backends ();
1426 2204
2205#if EV_USE_IOCP
2206 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2207#endif
1427#if EV_USE_PORT 2208#if EV_USE_PORT
1428 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2209 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1429#endif 2210#endif
1430#if EV_USE_KQUEUE 2211#if EV_USE_KQUEUE
1431 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2212 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1440 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2221 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1441#endif 2222#endif
1442 2223
1443 ev_prepare_init (&pending_w, pendingcb); 2224 ev_prepare_init (&pending_w, pendingcb);
1444 2225
2226#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1445 ev_init (&pipe_w, pipecb); 2227 ev_init (&pipe_w, pipecb);
1446 ev_set_priority (&pipe_w, EV_MAXPRI); 2228 ev_set_priority (&pipe_w, EV_MAXPRI);
2229#endif
1447 } 2230 }
1448} 2231}
1449 2232
1450/* free up a loop structure */ 2233/* free up a loop structure */
1451static void noinline 2234void ecb_cold
1452loop_destroy (EV_P) 2235ev_loop_destroy (EV_P)
1453{ 2236{
1454 int i; 2237 int i;
1455 2238
2239#if EV_MULTIPLICITY
2240 /* mimic free (0) */
2241 if (!EV_A)
2242 return;
2243#endif
2244
2245#if EV_CLEANUP_ENABLE
2246 /* queue cleanup watchers (and execute them) */
2247 if (expect_false (cleanupcnt))
2248 {
2249 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2250 EV_INVOKE_PENDING;
2251 }
2252#endif
2253
2254#if EV_CHILD_ENABLE
2255 if (ev_is_active (&childev))
2256 {
2257 ev_ref (EV_A); /* child watcher */
2258 ev_signal_stop (EV_A_ &childev);
2259 }
2260#endif
2261
1456 if (ev_is_active (&pipe_w)) 2262 if (ev_is_active (&pipe_w))
1457 { 2263 {
1458 ev_ref (EV_A); /* signal watcher */ 2264 /*ev_ref (EV_A);*/
1459 ev_io_stop (EV_A_ &pipe_w); 2265 /*ev_io_stop (EV_A_ &pipe_w);*/
1460 2266
1461#if EV_USE_EVENTFD 2267#if EV_USE_EVENTFD
1462 if (evfd >= 0) 2268 if (evfd >= 0)
1463 close (evfd); 2269 close (evfd);
1464#endif 2270#endif
1465 2271
1466 if (evpipe [0] >= 0) 2272 if (evpipe [0] >= 0)
1467 { 2273 {
1468 close (evpipe [0]); 2274 EV_WIN32_CLOSE_FD (evpipe [0]);
1469 close (evpipe [1]); 2275 EV_WIN32_CLOSE_FD (evpipe [1]);
1470 } 2276 }
1471 } 2277 }
2278
2279#if EV_USE_SIGNALFD
2280 if (ev_is_active (&sigfd_w))
2281 close (sigfd);
2282#endif
1472 2283
1473#if EV_USE_INOTIFY 2284#if EV_USE_INOTIFY
1474 if (fs_fd >= 0) 2285 if (fs_fd >= 0)
1475 close (fs_fd); 2286 close (fs_fd);
1476#endif 2287#endif
1477 2288
1478 if (backend_fd >= 0) 2289 if (backend_fd >= 0)
1479 close (backend_fd); 2290 close (backend_fd);
1480 2291
2292#if EV_USE_IOCP
2293 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2294#endif
1481#if EV_USE_PORT 2295#if EV_USE_PORT
1482 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2296 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1483#endif 2297#endif
1484#if EV_USE_KQUEUE 2298#if EV_USE_KQUEUE
1485 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2299 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1500#if EV_IDLE_ENABLE 2314#if EV_IDLE_ENABLE
1501 array_free (idle, [i]); 2315 array_free (idle, [i]);
1502#endif 2316#endif
1503 } 2317 }
1504 2318
1505 ev_free (anfds); anfdmax = 0; 2319 ev_free (anfds); anfds = 0; anfdmax = 0;
1506 2320
1507 /* have to use the microsoft-never-gets-it-right macro */ 2321 /* have to use the microsoft-never-gets-it-right macro */
1508 array_free (rfeed, EMPTY); 2322 array_free (rfeed, EMPTY);
1509 array_free (fdchange, EMPTY); 2323 array_free (fdchange, EMPTY);
1510 array_free (timer, EMPTY); 2324 array_free (timer, EMPTY);
… …
1512 array_free (periodic, EMPTY); 2326 array_free (periodic, EMPTY);
1513#endif 2327#endif
1514#if EV_FORK_ENABLE 2328#if EV_FORK_ENABLE
1515 array_free (fork, EMPTY); 2329 array_free (fork, EMPTY);
1516#endif 2330#endif
2331#if EV_CLEANUP_ENABLE
2332 array_free (cleanup, EMPTY);
2333#endif
1517 array_free (prepare, EMPTY); 2334 array_free (prepare, EMPTY);
1518 array_free (check, EMPTY); 2335 array_free (check, EMPTY);
1519#if EV_ASYNC_ENABLE 2336#if EV_ASYNC_ENABLE
1520 array_free (async, EMPTY); 2337 array_free (async, EMPTY);
1521#endif 2338#endif
1522 2339
1523 backend = 0; 2340 backend = 0;
2341
2342#if EV_MULTIPLICITY
2343 if (ev_is_default_loop (EV_A))
2344#endif
2345 ev_default_loop_ptr = 0;
2346#if EV_MULTIPLICITY
2347 else
2348 ev_free (EV_A);
2349#endif
1524} 2350}
1525 2351
1526#if EV_USE_INOTIFY 2352#if EV_USE_INOTIFY
1527inline_size void infy_fork (EV_P); 2353inline_size void infy_fork (EV_P);
1528#endif 2354#endif
… …
1543 infy_fork (EV_A); 2369 infy_fork (EV_A);
1544#endif 2370#endif
1545 2371
1546 if (ev_is_active (&pipe_w)) 2372 if (ev_is_active (&pipe_w))
1547 { 2373 {
1548 /* this "locks" the handlers against writing to the pipe */ 2374 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1549 /* while we modify the fd vars */
1550 gotsig = 1;
1551#if EV_ASYNC_ENABLE
1552 gotasync = 1;
1553#endif
1554 2375
1555 ev_ref (EV_A); 2376 ev_ref (EV_A);
1556 ev_io_stop (EV_A_ &pipe_w); 2377 ev_io_stop (EV_A_ &pipe_w);
1557 2378
1558#if EV_USE_EVENTFD 2379#if EV_USE_EVENTFD
… …
1560 close (evfd); 2381 close (evfd);
1561#endif 2382#endif
1562 2383
1563 if (evpipe [0] >= 0) 2384 if (evpipe [0] >= 0)
1564 { 2385 {
1565 close (evpipe [0]); 2386 EV_WIN32_CLOSE_FD (evpipe [0]);
1566 close (evpipe [1]); 2387 EV_WIN32_CLOSE_FD (evpipe [1]);
1567 } 2388 }
1568 2389
2390#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1569 evpipe_init (EV_A); 2391 evpipe_init (EV_A);
1570 /* now iterate over everything, in case we missed something */ 2392 /* now iterate over everything, in case we missed something */
1571 pipecb (EV_A_ &pipe_w, EV_READ); 2393 pipecb (EV_A_ &pipe_w, EV_READ);
2394#endif
1572 } 2395 }
1573 2396
1574 postfork = 0; 2397 postfork = 0;
1575} 2398}
1576 2399
1577#if EV_MULTIPLICITY 2400#if EV_MULTIPLICITY
1578 2401
1579struct ev_loop * 2402struct ev_loop * ecb_cold
1580ev_loop_new (unsigned int flags) 2403ev_loop_new (unsigned int flags)
1581{ 2404{
1582 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2405 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1583 2406
1584 memset (loop, 0, sizeof (struct ev_loop)); 2407 memset (EV_A, 0, sizeof (struct ev_loop));
1585
1586 loop_init (EV_A_ flags); 2408 loop_init (EV_A_ flags);
1587 2409
1588 if (ev_backend (EV_A)) 2410 if (ev_backend (EV_A))
1589 return loop; 2411 return EV_A;
1590 2412
2413 ev_free (EV_A);
1591 return 0; 2414 return 0;
1592} 2415}
1593 2416
1594void 2417#endif /* multiplicity */
1595ev_loop_destroy (EV_P)
1596{
1597 loop_destroy (EV_A);
1598 ev_free (loop);
1599}
1600
1601void
1602ev_loop_fork (EV_P)
1603{
1604 postfork = 1; /* must be in line with ev_default_fork */
1605}
1606 2418
1607#if EV_VERIFY 2419#if EV_VERIFY
1608static void noinline 2420static void noinline ecb_cold
1609verify_watcher (EV_P_ W w) 2421verify_watcher (EV_P_ W w)
1610{ 2422{
1611 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2423 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1612 2424
1613 if (w->pending) 2425 if (w->pending)
1614 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2426 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1615} 2427}
1616 2428
1617static void noinline 2429static void noinline ecb_cold
1618verify_heap (EV_P_ ANHE *heap, int N) 2430verify_heap (EV_P_ ANHE *heap, int N)
1619{ 2431{
1620 int i; 2432 int i;
1621 2433
1622 for (i = HEAP0; i < N + HEAP0; ++i) 2434 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1627 2439
1628 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2440 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1629 } 2441 }
1630} 2442}
1631 2443
1632static void noinline 2444static void noinline ecb_cold
1633array_verify (EV_P_ W *ws, int cnt) 2445array_verify (EV_P_ W *ws, int cnt)
1634{ 2446{
1635 while (cnt--) 2447 while (cnt--)
1636 { 2448 {
1637 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2449 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1638 verify_watcher (EV_A_ ws [cnt]); 2450 verify_watcher (EV_A_ ws [cnt]);
1639 } 2451 }
1640} 2452}
1641#endif 2453#endif
1642 2454
1643void 2455#if EV_FEATURE_API
2456void ecb_cold
1644ev_loop_verify (EV_P) 2457ev_verify (EV_P)
1645{ 2458{
1646#if EV_VERIFY 2459#if EV_VERIFY
1647 int i; 2460 int i;
1648 WL w; 2461 WL w;
1649 2462
… …
1683#if EV_FORK_ENABLE 2496#if EV_FORK_ENABLE
1684 assert (forkmax >= forkcnt); 2497 assert (forkmax >= forkcnt);
1685 array_verify (EV_A_ (W *)forks, forkcnt); 2498 array_verify (EV_A_ (W *)forks, forkcnt);
1686#endif 2499#endif
1687 2500
2501#if EV_CLEANUP_ENABLE
2502 assert (cleanupmax >= cleanupcnt);
2503 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2504#endif
2505
1688#if EV_ASYNC_ENABLE 2506#if EV_ASYNC_ENABLE
1689 assert (asyncmax >= asynccnt); 2507 assert (asyncmax >= asynccnt);
1690 array_verify (EV_A_ (W *)asyncs, asynccnt); 2508 array_verify (EV_A_ (W *)asyncs, asynccnt);
1691#endif 2509#endif
1692 2510
2511#if EV_PREPARE_ENABLE
1693 assert (preparemax >= preparecnt); 2512 assert (preparemax >= preparecnt);
1694 array_verify (EV_A_ (W *)prepares, preparecnt); 2513 array_verify (EV_A_ (W *)prepares, preparecnt);
2514#endif
1695 2515
2516#if EV_CHECK_ENABLE
1696 assert (checkmax >= checkcnt); 2517 assert (checkmax >= checkcnt);
1697 array_verify (EV_A_ (W *)checks, checkcnt); 2518 array_verify (EV_A_ (W *)checks, checkcnt);
2519#endif
1698 2520
1699# if 0 2521# if 0
2522#if EV_CHILD_ENABLE
1700 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2523 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1701 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2524 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2525#endif
1702# endif 2526# endif
1703#endif 2527#endif
1704} 2528}
1705 2529#endif
1706#endif /* multiplicity */
1707 2530
1708#if EV_MULTIPLICITY 2531#if EV_MULTIPLICITY
1709struct ev_loop * 2532struct ev_loop * ecb_cold
1710ev_default_loop_init (unsigned int flags)
1711#else 2533#else
1712int 2534int
2535#endif
1713ev_default_loop (unsigned int flags) 2536ev_default_loop (unsigned int flags)
1714#endif
1715{ 2537{
1716 if (!ev_default_loop_ptr) 2538 if (!ev_default_loop_ptr)
1717 { 2539 {
1718#if EV_MULTIPLICITY 2540#if EV_MULTIPLICITY
1719 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2541 EV_P = ev_default_loop_ptr = &default_loop_struct;
1720#else 2542#else
1721 ev_default_loop_ptr = 1; 2543 ev_default_loop_ptr = 1;
1722#endif 2544#endif
1723 2545
1724 loop_init (EV_A_ flags); 2546 loop_init (EV_A_ flags);
1725 2547
1726 if (ev_backend (EV_A)) 2548 if (ev_backend (EV_A))
1727 { 2549 {
1728#ifndef _WIN32 2550#if EV_CHILD_ENABLE
1729 ev_signal_init (&childev, childcb, SIGCHLD); 2551 ev_signal_init (&childev, childcb, SIGCHLD);
1730 ev_set_priority (&childev, EV_MAXPRI); 2552 ev_set_priority (&childev, EV_MAXPRI);
1731 ev_signal_start (EV_A_ &childev); 2553 ev_signal_start (EV_A_ &childev);
1732 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2554 ev_unref (EV_A); /* child watcher should not keep loop alive */
1733#endif 2555#endif
… …
1738 2560
1739 return ev_default_loop_ptr; 2561 return ev_default_loop_ptr;
1740} 2562}
1741 2563
1742void 2564void
1743ev_default_destroy (void) 2565ev_loop_fork (EV_P)
1744{ 2566{
1745#if EV_MULTIPLICITY
1746 struct ev_loop *loop = ev_default_loop_ptr;
1747#endif
1748
1749 ev_default_loop_ptr = 0;
1750
1751#ifndef _WIN32
1752 ev_ref (EV_A); /* child watcher */
1753 ev_signal_stop (EV_A_ &childev);
1754#endif
1755
1756 loop_destroy (EV_A);
1757}
1758
1759void
1760ev_default_fork (void)
1761{
1762#if EV_MULTIPLICITY
1763 struct ev_loop *loop = ev_default_loop_ptr;
1764#endif
1765
1766 postfork = 1; /* must be in line with ev_loop_fork */ 2567 postfork = 1; /* must be in line with ev_default_fork */
1767} 2568}
1768 2569
1769/*****************************************************************************/ 2570/*****************************************************************************/
1770 2571
1771void 2572void
1772ev_invoke (EV_P_ void *w, int revents) 2573ev_invoke (EV_P_ void *w, int revents)
1773{ 2574{
1774 EV_CB_INVOKE ((W)w, revents); 2575 EV_CB_INVOKE ((W)w, revents);
1775} 2576}
1776 2577
1777inline_speed void 2578unsigned int
1778call_pending (EV_P) 2579ev_pending_count (EV_P)
2580{
2581 int pri;
2582 unsigned int count = 0;
2583
2584 for (pri = NUMPRI; pri--; )
2585 count += pendingcnt [pri];
2586
2587 return count;
2588}
2589
2590void noinline
2591ev_invoke_pending (EV_P)
1779{ 2592{
1780 int pri; 2593 int pri;
1781 2594
1782 for (pri = NUMPRI; pri--; ) 2595 for (pri = NUMPRI; pri--; )
1783 while (pendingcnt [pri]) 2596 while (pendingcnt [pri])
1784 { 2597 {
1785 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2598 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1786
1787 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1788 /* ^ this is no longer true, as pending_w could be here */
1789 2599
1790 p->w->pending = 0; 2600 p->w->pending = 0;
1791 EV_CB_INVOKE (p->w, p->events); 2601 EV_CB_INVOKE (p->w, p->events);
1792 EV_FREQUENT_CHECK; 2602 EV_FREQUENT_CHECK;
1793 } 2603 }
… …
1850 EV_FREQUENT_CHECK; 2660 EV_FREQUENT_CHECK;
1851 feed_reverse (EV_A_ (W)w); 2661 feed_reverse (EV_A_ (W)w);
1852 } 2662 }
1853 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2663 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1854 2664
1855 feed_reverse_done (EV_A_ EV_TIMEOUT); 2665 feed_reverse_done (EV_A_ EV_TIMER);
1856 } 2666 }
1857} 2667}
1858 2668
1859#if EV_PERIODIC_ENABLE 2669#if EV_PERIODIC_ENABLE
2670
2671static void noinline
2672periodic_recalc (EV_P_ ev_periodic *w)
2673{
2674 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2675 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2676
2677 /* the above almost always errs on the low side */
2678 while (at <= ev_rt_now)
2679 {
2680 ev_tstamp nat = at + w->interval;
2681
2682 /* when resolution fails us, we use ev_rt_now */
2683 if (expect_false (nat == at))
2684 {
2685 at = ev_rt_now;
2686 break;
2687 }
2688
2689 at = nat;
2690 }
2691
2692 ev_at (w) = at;
2693}
2694
1860/* make periodics pending */ 2695/* make periodics pending */
1861inline_size void 2696inline_size void
1862periodics_reify (EV_P) 2697periodics_reify (EV_P)
1863{ 2698{
1864 EV_FREQUENT_CHECK; 2699 EV_FREQUENT_CHECK;
… …
1883 ANHE_at_cache (periodics [HEAP0]); 2718 ANHE_at_cache (periodics [HEAP0]);
1884 downheap (periodics, periodiccnt, HEAP0); 2719 downheap (periodics, periodiccnt, HEAP0);
1885 } 2720 }
1886 else if (w->interval) 2721 else if (w->interval)
1887 { 2722 {
1888 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2723 periodic_recalc (EV_A_ w);
1889 /* if next trigger time is not sufficiently in the future, put it there */
1890 /* this might happen because of floating point inexactness */
1891 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1892 {
1893 ev_at (w) += w->interval;
1894
1895 /* if interval is unreasonably low we might still have a time in the past */
1896 /* so correct this. this will make the periodic very inexact, but the user */
1897 /* has effectively asked to get triggered more often than possible */
1898 if (ev_at (w) < ev_rt_now)
1899 ev_at (w) = ev_rt_now;
1900 }
1901
1902 ANHE_at_cache (periodics [HEAP0]); 2724 ANHE_at_cache (periodics [HEAP0]);
1903 downheap (periodics, periodiccnt, HEAP0); 2725 downheap (periodics, periodiccnt, HEAP0);
1904 } 2726 }
1905 else 2727 else
1906 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2728 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1913 feed_reverse_done (EV_A_ EV_PERIODIC); 2735 feed_reverse_done (EV_A_ EV_PERIODIC);
1914 } 2736 }
1915} 2737}
1916 2738
1917/* simply recalculate all periodics */ 2739/* simply recalculate all periodics */
1918/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2740/* TODO: maybe ensure that at least one event happens when jumping forward? */
1919static void noinline 2741static void noinline ecb_cold
1920periodics_reschedule (EV_P) 2742periodics_reschedule (EV_P)
1921{ 2743{
1922 int i; 2744 int i;
1923 2745
1924 /* adjust periodics after time jump */ 2746 /* adjust periodics after time jump */
… …
1927 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2749 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1928 2750
1929 if (w->reschedule_cb) 2751 if (w->reschedule_cb)
1930 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2752 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1931 else if (w->interval) 2753 else if (w->interval)
1932 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2754 periodic_recalc (EV_A_ w);
1933 2755
1934 ANHE_at_cache (periodics [i]); 2756 ANHE_at_cache (periodics [i]);
1935 } 2757 }
1936 2758
1937 reheap (periodics, periodiccnt); 2759 reheap (periodics, periodiccnt);
1938} 2760}
1939#endif 2761#endif
1940 2762
1941/* adjust all timers by a given offset */ 2763/* adjust all timers by a given offset */
1942static void noinline 2764static void noinline ecb_cold
1943timers_reschedule (EV_P_ ev_tstamp adjust) 2765timers_reschedule (EV_P_ ev_tstamp adjust)
1944{ 2766{
1945 int i; 2767 int i;
1946 2768
1947 for (i = 0; i < timercnt; ++i) 2769 for (i = 0; i < timercnt; ++i)
… …
1951 ANHE_at_cache (*he); 2773 ANHE_at_cache (*he);
1952 } 2774 }
1953} 2775}
1954 2776
1955/* fetch new monotonic and realtime times from the kernel */ 2777/* fetch new monotonic and realtime times from the kernel */
1956/* also detetc if there was a timejump, and act accordingly */ 2778/* also detect if there was a timejump, and act accordingly */
1957inline_speed void 2779inline_speed void
1958time_update (EV_P_ ev_tstamp max_block) 2780time_update (EV_P_ ev_tstamp max_block)
1959{ 2781{
1960#if EV_USE_MONOTONIC 2782#if EV_USE_MONOTONIC
1961 if (expect_true (have_monotonic)) 2783 if (expect_true (have_monotonic))
… …
1984 * doesn't hurt either as we only do this on time-jumps or 2806 * doesn't hurt either as we only do this on time-jumps or
1985 * in the unlikely event of having been preempted here. 2807 * in the unlikely event of having been preempted here.
1986 */ 2808 */
1987 for (i = 4; --i; ) 2809 for (i = 4; --i; )
1988 { 2810 {
2811 ev_tstamp diff;
1989 rtmn_diff = ev_rt_now - mn_now; 2812 rtmn_diff = ev_rt_now - mn_now;
1990 2813
2814 diff = odiff - rtmn_diff;
2815
1991 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2816 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
1992 return; /* all is well */ 2817 return; /* all is well */
1993 2818
1994 ev_rt_now = ev_time (); 2819 ev_rt_now = ev_time ();
1995 mn_now = get_clock (); 2820 mn_now = get_clock ();
1996 now_floor = mn_now; 2821 now_floor = mn_now;
… …
2018 2843
2019 mn_now = ev_rt_now; 2844 mn_now = ev_rt_now;
2020 } 2845 }
2021} 2846}
2022 2847
2023static int loop_done;
2024
2025void 2848void
2026ev_loop (EV_P_ int flags) 2849ev_run (EV_P_ int flags)
2027{ 2850{
2851#if EV_FEATURE_API
2852 ++loop_depth;
2853#endif
2854
2855 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2856
2028 loop_done = EVUNLOOP_CANCEL; 2857 loop_done = EVBREAK_CANCEL;
2029 2858
2030 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2859 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2031 2860
2032 do 2861 do
2033 { 2862 {
2034#if EV_VERIFY >= 2 2863#if EV_VERIFY >= 2
2035 ev_loop_verify (EV_A); 2864 ev_verify (EV_A);
2036#endif 2865#endif
2037 2866
2038#ifndef _WIN32 2867#ifndef _WIN32
2039 if (expect_false (curpid)) /* penalise the forking check even more */ 2868 if (expect_false (curpid)) /* penalise the forking check even more */
2040 if (expect_false (getpid () != curpid)) 2869 if (expect_false (getpid () != curpid))
… …
2048 /* we might have forked, so queue fork handlers */ 2877 /* we might have forked, so queue fork handlers */
2049 if (expect_false (postfork)) 2878 if (expect_false (postfork))
2050 if (forkcnt) 2879 if (forkcnt)
2051 { 2880 {
2052 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2881 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2053 call_pending (EV_A); 2882 EV_INVOKE_PENDING;
2054 } 2883 }
2055#endif 2884#endif
2056 2885
2886#if EV_PREPARE_ENABLE
2057 /* queue prepare watchers (and execute them) */ 2887 /* queue prepare watchers (and execute them) */
2058 if (expect_false (preparecnt)) 2888 if (expect_false (preparecnt))
2059 { 2889 {
2060 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2890 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2061 call_pending (EV_A); 2891 EV_INVOKE_PENDING;
2062 } 2892 }
2893#endif
2894
2895 if (expect_false (loop_done))
2896 break;
2063 2897
2064 /* we might have forked, so reify kernel state if necessary */ 2898 /* we might have forked, so reify kernel state if necessary */
2065 if (expect_false (postfork)) 2899 if (expect_false (postfork))
2066 loop_fork (EV_A); 2900 loop_fork (EV_A);
2067 2901
… …
2071 /* calculate blocking time */ 2905 /* calculate blocking time */
2072 { 2906 {
2073 ev_tstamp waittime = 0.; 2907 ev_tstamp waittime = 0.;
2074 ev_tstamp sleeptime = 0.; 2908 ev_tstamp sleeptime = 0.;
2075 2909
2910 /* remember old timestamp for io_blocktime calculation */
2911 ev_tstamp prev_mn_now = mn_now;
2912
2913 /* update time to cancel out callback processing overhead */
2914 time_update (EV_A_ 1e100);
2915
2916 /* from now on, we want a pipe-wake-up */
2917 pipe_write_wanted = 1;
2918
2919 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2920
2076 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2921 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2077 { 2922 {
2078 /* update time to cancel out callback processing overhead */
2079 time_update (EV_A_ 1e100);
2080
2081 waittime = MAX_BLOCKTIME; 2923 waittime = MAX_BLOCKTIME;
2082 2924
2083 if (timercnt) 2925 if (timercnt)
2084 { 2926 {
2085 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2927 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2086 if (waittime > to) waittime = to; 2928 if (waittime > to) waittime = to;
2087 } 2929 }
2088 2930
2089#if EV_PERIODIC_ENABLE 2931#if EV_PERIODIC_ENABLE
2090 if (periodiccnt) 2932 if (periodiccnt)
2091 { 2933 {
2092 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2934 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2093 if (waittime > to) waittime = to; 2935 if (waittime > to) waittime = to;
2094 } 2936 }
2095#endif 2937#endif
2096 2938
2939 /* don't let timeouts decrease the waittime below timeout_blocktime */
2097 if (expect_false (waittime < timeout_blocktime)) 2940 if (expect_false (waittime < timeout_blocktime))
2098 waittime = timeout_blocktime; 2941 waittime = timeout_blocktime;
2099 2942
2100 sleeptime = waittime - backend_fudge; 2943 /* at this point, we NEED to wait, so we have to ensure */
2944 /* to pass a minimum nonzero value to the backend */
2945 if (expect_false (waittime < backend_mintime))
2946 waittime = backend_mintime;
2101 2947
2948 /* extra check because io_blocktime is commonly 0 */
2102 if (expect_true (sleeptime > io_blocktime)) 2949 if (expect_false (io_blocktime))
2103 sleeptime = io_blocktime;
2104
2105 if (sleeptime)
2106 { 2950 {
2951 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2952
2953 if (sleeptime > waittime - backend_mintime)
2954 sleeptime = waittime - backend_mintime;
2955
2956 if (expect_true (sleeptime > 0.))
2957 {
2107 ev_sleep (sleeptime); 2958 ev_sleep (sleeptime);
2108 waittime -= sleeptime; 2959 waittime -= sleeptime;
2960 }
2109 } 2961 }
2110 } 2962 }
2111 2963
2964#if EV_FEATURE_API
2112 ++loop_count; 2965 ++loop_count;
2966#endif
2967 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2113 backend_poll (EV_A_ waittime); 2968 backend_poll (EV_A_ waittime);
2969 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2970
2971 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2972
2973 if (pipe_write_skipped)
2974 {
2975 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2976 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2977 }
2978
2114 2979
2115 /* update ev_rt_now, do magic */ 2980 /* update ev_rt_now, do magic */
2116 time_update (EV_A_ waittime + sleeptime); 2981 time_update (EV_A_ waittime + sleeptime);
2117 } 2982 }
2118 2983
… …
2125#if EV_IDLE_ENABLE 2990#if EV_IDLE_ENABLE
2126 /* queue idle watchers unless other events are pending */ 2991 /* queue idle watchers unless other events are pending */
2127 idle_reify (EV_A); 2992 idle_reify (EV_A);
2128#endif 2993#endif
2129 2994
2995#if EV_CHECK_ENABLE
2130 /* queue check watchers, to be executed first */ 2996 /* queue check watchers, to be executed first */
2131 if (expect_false (checkcnt)) 2997 if (expect_false (checkcnt))
2132 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2998 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2999#endif
2133 3000
2134 call_pending (EV_A); 3001 EV_INVOKE_PENDING;
2135 } 3002 }
2136 while (expect_true ( 3003 while (expect_true (
2137 activecnt 3004 activecnt
2138 && !loop_done 3005 && !loop_done
2139 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3006 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2140 )); 3007 ));
2141 3008
2142 if (loop_done == EVUNLOOP_ONE) 3009 if (loop_done == EVBREAK_ONE)
2143 loop_done = EVUNLOOP_CANCEL; 3010 loop_done = EVBREAK_CANCEL;
3011
3012#if EV_FEATURE_API
3013 --loop_depth;
3014#endif
2144} 3015}
2145 3016
2146void 3017void
2147ev_unloop (EV_P_ int how) 3018ev_break (EV_P_ int how)
2148{ 3019{
2149 loop_done = how; 3020 loop_done = how;
2150} 3021}
2151 3022
2152void 3023void
… …
2199inline_size void 3070inline_size void
2200wlist_del (WL *head, WL elem) 3071wlist_del (WL *head, WL elem)
2201{ 3072{
2202 while (*head) 3073 while (*head)
2203 { 3074 {
2204 if (*head == elem) 3075 if (expect_true (*head == elem))
2205 { 3076 {
2206 *head = elem->next; 3077 *head = elem->next;
2207 return; 3078 break;
2208 } 3079 }
2209 3080
2210 head = &(*head)->next; 3081 head = &(*head)->next;
2211 } 3082 }
2212} 3083}
… …
2240} 3111}
2241 3112
2242inline_size void 3113inline_size void
2243pri_adjust (EV_P_ W w) 3114pri_adjust (EV_P_ W w)
2244{ 3115{
2245 int pri = w->priority; 3116 int pri = ev_priority (w);
2246 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 3117 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2247 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 3118 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2248 w->priority = pri; 3119 ev_set_priority (w, pri);
2249} 3120}
2250 3121
2251inline_speed void 3122inline_speed void
2252ev_start (EV_P_ W w, int active) 3123ev_start (EV_P_ W w, int active)
2253{ 3124{
… …
2272 3143
2273 if (expect_false (ev_is_active (w))) 3144 if (expect_false (ev_is_active (w)))
2274 return; 3145 return;
2275 3146
2276 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3147 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2277 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3148 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2278 3149
2279 EV_FREQUENT_CHECK; 3150 EV_FREQUENT_CHECK;
2280 3151
2281 ev_start (EV_A_ (W)w, 1); 3152 ev_start (EV_A_ (W)w, 1);
2282 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3153 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2283 wlist_add (&anfds[fd].head, (WL)w); 3154 wlist_add (&anfds[fd].head, (WL)w);
2284 3155
2285 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 3156 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2286 w->events &= ~EV__IOFDSET; 3157 w->events &= ~EV__IOFDSET;
2287 3158
2288 EV_FREQUENT_CHECK; 3159 EV_FREQUENT_CHECK;
2289} 3160}
2290 3161
… …
2300 EV_FREQUENT_CHECK; 3171 EV_FREQUENT_CHECK;
2301 3172
2302 wlist_del (&anfds[w->fd].head, (WL)w); 3173 wlist_del (&anfds[w->fd].head, (WL)w);
2303 ev_stop (EV_A_ (W)w); 3174 ev_stop (EV_A_ (W)w);
2304 3175
2305 fd_change (EV_A_ w->fd, 1); 3176 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2306 3177
2307 EV_FREQUENT_CHECK; 3178 EV_FREQUENT_CHECK;
2308} 3179}
2309 3180
2310void noinline 3181void noinline
… …
2352 timers [active] = timers [timercnt + HEAP0]; 3223 timers [active] = timers [timercnt + HEAP0];
2353 adjustheap (timers, timercnt, active); 3224 adjustheap (timers, timercnt, active);
2354 } 3225 }
2355 } 3226 }
2356 3227
2357 EV_FREQUENT_CHECK;
2358
2359 ev_at (w) -= mn_now; 3228 ev_at (w) -= mn_now;
2360 3229
2361 ev_stop (EV_A_ (W)w); 3230 ev_stop (EV_A_ (W)w);
3231
3232 EV_FREQUENT_CHECK;
2362} 3233}
2363 3234
2364void noinline 3235void noinline
2365ev_timer_again (EV_P_ ev_timer *w) 3236ev_timer_again (EV_P_ ev_timer *w)
2366{ 3237{
… …
2384 } 3255 }
2385 3256
2386 EV_FREQUENT_CHECK; 3257 EV_FREQUENT_CHECK;
2387} 3258}
2388 3259
3260ev_tstamp
3261ev_timer_remaining (EV_P_ ev_timer *w)
3262{
3263 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3264}
3265
2389#if EV_PERIODIC_ENABLE 3266#if EV_PERIODIC_ENABLE
2390void noinline 3267void noinline
2391ev_periodic_start (EV_P_ ev_periodic *w) 3268ev_periodic_start (EV_P_ ev_periodic *w)
2392{ 3269{
2393 if (expect_false (ev_is_active (w))) 3270 if (expect_false (ev_is_active (w)))
… …
2396 if (w->reschedule_cb) 3273 if (w->reschedule_cb)
2397 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3274 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2398 else if (w->interval) 3275 else if (w->interval)
2399 { 3276 {
2400 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3277 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2401 /* this formula differs from the one in periodic_reify because we do not always round up */ 3278 periodic_recalc (EV_A_ w);
2402 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2403 } 3279 }
2404 else 3280 else
2405 ev_at (w) = w->offset; 3281 ev_at (w) = w->offset;
2406 3282
2407 EV_FREQUENT_CHECK; 3283 EV_FREQUENT_CHECK;
… …
2439 periodics [active] = periodics [periodiccnt + HEAP0]; 3315 periodics [active] = periodics [periodiccnt + HEAP0];
2440 adjustheap (periodics, periodiccnt, active); 3316 adjustheap (periodics, periodiccnt, active);
2441 } 3317 }
2442 } 3318 }
2443 3319
2444 EV_FREQUENT_CHECK;
2445
2446 ev_stop (EV_A_ (W)w); 3320 ev_stop (EV_A_ (W)w);
3321
3322 EV_FREQUENT_CHECK;
2447} 3323}
2448 3324
2449void noinline 3325void noinline
2450ev_periodic_again (EV_P_ ev_periodic *w) 3326ev_periodic_again (EV_P_ ev_periodic *w)
2451{ 3327{
… …
2457 3333
2458#ifndef SA_RESTART 3334#ifndef SA_RESTART
2459# define SA_RESTART 0 3335# define SA_RESTART 0
2460#endif 3336#endif
2461 3337
3338#if EV_SIGNAL_ENABLE
3339
2462void noinline 3340void noinline
2463ev_signal_start (EV_P_ ev_signal *w) 3341ev_signal_start (EV_P_ ev_signal *w)
2464{ 3342{
2465#if EV_MULTIPLICITY
2466 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2467#endif
2468 if (expect_false (ev_is_active (w))) 3343 if (expect_false (ev_is_active (w)))
2469 return; 3344 return;
2470 3345
2471 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3346 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2472 3347
2473 evpipe_init (EV_A); 3348#if EV_MULTIPLICITY
3349 assert (("libev: a signal must not be attached to two different loops",
3350 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2474 3351
2475 EV_FREQUENT_CHECK; 3352 signals [w->signum - 1].loop = EV_A;
3353#endif
2476 3354
3355 EV_FREQUENT_CHECK;
3356
3357#if EV_USE_SIGNALFD
3358 if (sigfd == -2)
2477 { 3359 {
2478#ifndef _WIN32 3360 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2479 sigset_t full, prev; 3361 if (sigfd < 0 && errno == EINVAL)
2480 sigfillset (&full); 3362 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2481 sigprocmask (SIG_SETMASK, &full, &prev);
2482#endif
2483 3363
2484 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3364 if (sigfd >= 0)
3365 {
3366 fd_intern (sigfd); /* doing it twice will not hurt */
2485 3367
2486#ifndef _WIN32 3368 sigemptyset (&sigfd_set);
2487 sigprocmask (SIG_SETMASK, &prev, 0); 3369
2488#endif 3370 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3371 ev_set_priority (&sigfd_w, EV_MAXPRI);
3372 ev_io_start (EV_A_ &sigfd_w);
3373 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3374 }
2489 } 3375 }
3376
3377 if (sigfd >= 0)
3378 {
3379 /* TODO: check .head */
3380 sigaddset (&sigfd_set, w->signum);
3381 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3382
3383 signalfd (sigfd, &sigfd_set, 0);
3384 }
3385#endif
2490 3386
2491 ev_start (EV_A_ (W)w, 1); 3387 ev_start (EV_A_ (W)w, 1);
2492 wlist_add (&signals [w->signum - 1].head, (WL)w); 3388 wlist_add (&signals [w->signum - 1].head, (WL)w);
2493 3389
2494 if (!((WL)w)->next) 3390 if (!((WL)w)->next)
3391# if EV_USE_SIGNALFD
3392 if (sigfd < 0) /*TODO*/
3393# endif
2495 { 3394 {
2496#if _WIN32 3395# ifdef _WIN32
3396 evpipe_init (EV_A);
3397
2497 signal (w->signum, ev_sighandler); 3398 signal (w->signum, ev_sighandler);
2498#else 3399# else
2499 struct sigaction sa; 3400 struct sigaction sa;
3401
3402 evpipe_init (EV_A);
3403
2500 sa.sa_handler = ev_sighandler; 3404 sa.sa_handler = ev_sighandler;
2501 sigfillset (&sa.sa_mask); 3405 sigfillset (&sa.sa_mask);
2502 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3406 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2503 sigaction (w->signum, &sa, 0); 3407 sigaction (w->signum, &sa, 0);
3408
3409 if (origflags & EVFLAG_NOSIGMASK)
3410 {
3411 sigemptyset (&sa.sa_mask);
3412 sigaddset (&sa.sa_mask, w->signum);
3413 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3414 }
2504#endif 3415#endif
2505 } 3416 }
2506 3417
2507 EV_FREQUENT_CHECK; 3418 EV_FREQUENT_CHECK;
2508} 3419}
2509 3420
2510void noinline 3421void noinline
… …
2518 3429
2519 wlist_del (&signals [w->signum - 1].head, (WL)w); 3430 wlist_del (&signals [w->signum - 1].head, (WL)w);
2520 ev_stop (EV_A_ (W)w); 3431 ev_stop (EV_A_ (W)w);
2521 3432
2522 if (!signals [w->signum - 1].head) 3433 if (!signals [w->signum - 1].head)
3434 {
3435#if EV_MULTIPLICITY
3436 signals [w->signum - 1].loop = 0; /* unattach from signal */
3437#endif
3438#if EV_USE_SIGNALFD
3439 if (sigfd >= 0)
3440 {
3441 sigset_t ss;
3442
3443 sigemptyset (&ss);
3444 sigaddset (&ss, w->signum);
3445 sigdelset (&sigfd_set, w->signum);
3446
3447 signalfd (sigfd, &sigfd_set, 0);
3448 sigprocmask (SIG_UNBLOCK, &ss, 0);
3449 }
3450 else
3451#endif
2523 signal (w->signum, SIG_DFL); 3452 signal (w->signum, SIG_DFL);
3453 }
2524 3454
2525 EV_FREQUENT_CHECK; 3455 EV_FREQUENT_CHECK;
2526} 3456}
3457
3458#endif
3459
3460#if EV_CHILD_ENABLE
2527 3461
2528void 3462void
2529ev_child_start (EV_P_ ev_child *w) 3463ev_child_start (EV_P_ ev_child *w)
2530{ 3464{
2531#if EV_MULTIPLICITY 3465#if EV_MULTIPLICITY
… …
2535 return; 3469 return;
2536 3470
2537 EV_FREQUENT_CHECK; 3471 EV_FREQUENT_CHECK;
2538 3472
2539 ev_start (EV_A_ (W)w, 1); 3473 ev_start (EV_A_ (W)w, 1);
2540 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3474 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2541 3475
2542 EV_FREQUENT_CHECK; 3476 EV_FREQUENT_CHECK;
2543} 3477}
2544 3478
2545void 3479void
… …
2549 if (expect_false (!ev_is_active (w))) 3483 if (expect_false (!ev_is_active (w)))
2550 return; 3484 return;
2551 3485
2552 EV_FREQUENT_CHECK; 3486 EV_FREQUENT_CHECK;
2553 3487
2554 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3488 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2555 ev_stop (EV_A_ (W)w); 3489 ev_stop (EV_A_ (W)w);
2556 3490
2557 EV_FREQUENT_CHECK; 3491 EV_FREQUENT_CHECK;
2558} 3492}
3493
3494#endif
2559 3495
2560#if EV_STAT_ENABLE 3496#if EV_STAT_ENABLE
2561 3497
2562# ifdef _WIN32 3498# ifdef _WIN32
2563# undef lstat 3499# undef lstat
… …
2569#define MIN_STAT_INTERVAL 0.1074891 3505#define MIN_STAT_INTERVAL 0.1074891
2570 3506
2571static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3507static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2572 3508
2573#if EV_USE_INOTIFY 3509#if EV_USE_INOTIFY
2574# define EV_INOTIFY_BUFSIZE 8192 3510
3511/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3512# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2575 3513
2576static void noinline 3514static void noinline
2577infy_add (EV_P_ ev_stat *w) 3515infy_add (EV_P_ ev_stat *w)
2578{ 3516{
2579 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); 3517 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);
2580 3518
2581 if (w->wd < 0) 3519 if (w->wd >= 0)
3520 {
3521 struct statfs sfs;
3522
3523 /* now local changes will be tracked by inotify, but remote changes won't */
3524 /* unless the filesystem is known to be local, we therefore still poll */
3525 /* also do poll on <2.6.25, but with normal frequency */
3526
3527 if (!fs_2625)
3528 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3529 else if (!statfs (w->path, &sfs)
3530 && (sfs.f_type == 0x1373 /* devfs */
3531 || sfs.f_type == 0xEF53 /* ext2/3 */
3532 || sfs.f_type == 0x3153464a /* jfs */
3533 || sfs.f_type == 0x52654973 /* reiser3 */
3534 || sfs.f_type == 0x01021994 /* tempfs */
3535 || sfs.f_type == 0x58465342 /* xfs */))
3536 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3537 else
3538 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2582 { 3539 }
3540 else
3541 {
3542 /* can't use inotify, continue to stat */
2583 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3543 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2584 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2585 3544
2586 /* monitor some parent directory for speedup hints */ 3545 /* if path is not there, monitor some parent directory for speedup hints */
2587 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3546 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2588 /* but an efficiency issue only */ 3547 /* but an efficiency issue only */
2589 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3548 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2590 { 3549 {
2591 char path [4096]; 3550 char path [4096];
… …
2601 if (!pend || pend == path) 3560 if (!pend || pend == path)
2602 break; 3561 break;
2603 3562
2604 *pend = 0; 3563 *pend = 0;
2605 w->wd = inotify_add_watch (fs_fd, path, mask); 3564 w->wd = inotify_add_watch (fs_fd, path, mask);
2606 } 3565 }
2607 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3566 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2608 } 3567 }
2609 } 3568 }
2610 3569
2611 if (w->wd >= 0) 3570 if (w->wd >= 0)
2612 {
2613 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3571 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2614 3572
2615 /* now local changes will be tracked by inotify, but remote changes won't */ 3573 /* now re-arm timer, if required */
2616 /* unless the filesystem it known to be local, we therefore still poll */ 3574 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2617 /* also do poll on <2.6.25, but with normal frequency */
2618 struct statfs sfs;
2619
2620 if (fs_2625 && !statfs (w->path, &sfs))
2621 if (sfs.f_type == 0x1373 /* devfs */
2622 || sfs.f_type == 0xEF53 /* ext2/3 */
2623 || sfs.f_type == 0x3153464a /* jfs */
2624 || sfs.f_type == 0x52654973 /* reiser3 */
2625 || sfs.f_type == 0x01021994 /* tempfs */
2626 || sfs.f_type == 0x58465342 /* xfs */)
2627 return;
2628
2629 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2630 ev_timer_again (EV_A_ &w->timer); 3575 ev_timer_again (EV_A_ &w->timer);
2631 } 3576 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2632} 3577}
2633 3578
2634static void noinline 3579static void noinline
2635infy_del (EV_P_ ev_stat *w) 3580infy_del (EV_P_ ev_stat *w)
2636{ 3581{
… …
2639 3584
2640 if (wd < 0) 3585 if (wd < 0)
2641 return; 3586 return;
2642 3587
2643 w->wd = -2; 3588 w->wd = -2;
2644 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3589 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2645 wlist_del (&fs_hash [slot].head, (WL)w); 3590 wlist_del (&fs_hash [slot].head, (WL)w);
2646 3591
2647 /* remove this watcher, if others are watching it, they will rearm */ 3592 /* remove this watcher, if others are watching it, they will rearm */
2648 inotify_rm_watch (fs_fd, wd); 3593 inotify_rm_watch (fs_fd, wd);
2649} 3594}
… …
2651static void noinline 3596static void noinline
2652infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3597infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2653{ 3598{
2654 if (slot < 0) 3599 if (slot < 0)
2655 /* overflow, need to check for all hash slots */ 3600 /* overflow, need to check for all hash slots */
2656 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3601 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2657 infy_wd (EV_A_ slot, wd, ev); 3602 infy_wd (EV_A_ slot, wd, ev);
2658 else 3603 else
2659 { 3604 {
2660 WL w_; 3605 WL w_;
2661 3606
2662 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3607 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2663 { 3608 {
2664 ev_stat *w = (ev_stat *)w_; 3609 ev_stat *w = (ev_stat *)w_;
2665 w_ = w_->next; /* lets us remove this watcher and all before it */ 3610 w_ = w_->next; /* lets us remove this watcher and all before it */
2666 3611
2667 if (w->wd == wd || wd == -1) 3612 if (w->wd == wd || wd == -1)
2668 { 3613 {
2669 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3614 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2670 { 3615 {
2671 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3616 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2672 w->wd = -1; 3617 w->wd = -1;
2673 infy_add (EV_A_ w); /* re-add, no matter what */ 3618 infy_add (EV_A_ w); /* re-add, no matter what */
2674 } 3619 }
2675 3620
2676 stat_timer_cb (EV_A_ &w->timer, 0); 3621 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2681 3626
2682static void 3627static void
2683infy_cb (EV_P_ ev_io *w, int revents) 3628infy_cb (EV_P_ ev_io *w, int revents)
2684{ 3629{
2685 char buf [EV_INOTIFY_BUFSIZE]; 3630 char buf [EV_INOTIFY_BUFSIZE];
2686 struct inotify_event *ev = (struct inotify_event *)buf;
2687 int ofs; 3631 int ofs;
2688 int len = read (fs_fd, buf, sizeof (buf)); 3632 int len = read (fs_fd, buf, sizeof (buf));
2689 3633
2690 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3634 for (ofs = 0; ofs < len; )
3635 {
3636 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2691 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3637 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3638 ofs += sizeof (struct inotify_event) + ev->len;
3639 }
2692} 3640}
2693 3641
2694inline_size void 3642inline_size void ecb_cold
2695check_2625 (EV_P) 3643ev_check_2625 (EV_P)
2696{ 3644{
2697 /* kernels < 2.6.25 are borked 3645 /* kernels < 2.6.25 are borked
2698 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3646 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2699 */ 3647 */
2700 struct utsname buf; 3648 if (ev_linux_version () < 0x020619)
2701 int major, minor, micro;
2702
2703 if (uname (&buf))
2704 return; 3649 return;
2705 3650
2706 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2707 return;
2708
2709 if (major < 2
2710 || (major == 2 && minor < 6)
2711 || (major == 2 && minor == 6 && micro < 25))
2712 return;
2713
2714 fs_2625 = 1; 3651 fs_2625 = 1;
3652}
3653
3654inline_size int
3655infy_newfd (void)
3656{
3657#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3658 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3659 if (fd >= 0)
3660 return fd;
3661#endif
3662 return inotify_init ();
2715} 3663}
2716 3664
2717inline_size void 3665inline_size void
2718infy_init (EV_P) 3666infy_init (EV_P)
2719{ 3667{
2720 if (fs_fd != -2) 3668 if (fs_fd != -2)
2721 return; 3669 return;
2722 3670
2723 fs_fd = -1; 3671 fs_fd = -1;
2724 3672
2725 check_2625 (EV_A); 3673 ev_check_2625 (EV_A);
2726 3674
2727 fs_fd = inotify_init (); 3675 fs_fd = infy_newfd ();
2728 3676
2729 if (fs_fd >= 0) 3677 if (fs_fd >= 0)
2730 { 3678 {
3679 fd_intern (fs_fd);
2731 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3680 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2732 ev_set_priority (&fs_w, EV_MAXPRI); 3681 ev_set_priority (&fs_w, EV_MAXPRI);
2733 ev_io_start (EV_A_ &fs_w); 3682 ev_io_start (EV_A_ &fs_w);
3683 ev_unref (EV_A);
2734 } 3684 }
2735} 3685}
2736 3686
2737inline_size void 3687inline_size void
2738infy_fork (EV_P) 3688infy_fork (EV_P)
… …
2740 int slot; 3690 int slot;
2741 3691
2742 if (fs_fd < 0) 3692 if (fs_fd < 0)
2743 return; 3693 return;
2744 3694
3695 ev_ref (EV_A);
3696 ev_io_stop (EV_A_ &fs_w);
2745 close (fs_fd); 3697 close (fs_fd);
2746 fs_fd = inotify_init (); 3698 fs_fd = infy_newfd ();
2747 3699
3700 if (fs_fd >= 0)
3701 {
3702 fd_intern (fs_fd);
3703 ev_io_set (&fs_w, fs_fd, EV_READ);
3704 ev_io_start (EV_A_ &fs_w);
3705 ev_unref (EV_A);
3706 }
3707
2748 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3708 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2749 { 3709 {
2750 WL w_ = fs_hash [slot].head; 3710 WL w_ = fs_hash [slot].head;
2751 fs_hash [slot].head = 0; 3711 fs_hash [slot].head = 0;
2752 3712
2753 while (w_) 3713 while (w_)
… …
2758 w->wd = -1; 3718 w->wd = -1;
2759 3719
2760 if (fs_fd >= 0) 3720 if (fs_fd >= 0)
2761 infy_add (EV_A_ w); /* re-add, no matter what */ 3721 infy_add (EV_A_ w); /* re-add, no matter what */
2762 else 3722 else
3723 {
3724 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3725 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2763 ev_timer_again (EV_A_ &w->timer); 3726 ev_timer_again (EV_A_ &w->timer);
3727 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3728 }
2764 } 3729 }
2765 } 3730 }
2766} 3731}
2767 3732
2768#endif 3733#endif
… …
2785static void noinline 3750static void noinline
2786stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3751stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2787{ 3752{
2788 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3753 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2789 3754
2790 /* we copy this here each the time so that */ 3755 ev_statdata prev = w->attr;
2791 /* prev has the old value when the callback gets invoked */
2792 w->prev = w->attr;
2793 ev_stat_stat (EV_A_ w); 3756 ev_stat_stat (EV_A_ w);
2794 3757
2795 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3758 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2796 if ( 3759 if (
2797 w->prev.st_dev != w->attr.st_dev 3760 prev.st_dev != w->attr.st_dev
2798 || w->prev.st_ino != w->attr.st_ino 3761 || prev.st_ino != w->attr.st_ino
2799 || w->prev.st_mode != w->attr.st_mode 3762 || prev.st_mode != w->attr.st_mode
2800 || w->prev.st_nlink != w->attr.st_nlink 3763 || prev.st_nlink != w->attr.st_nlink
2801 || w->prev.st_uid != w->attr.st_uid 3764 || prev.st_uid != w->attr.st_uid
2802 || w->prev.st_gid != w->attr.st_gid 3765 || prev.st_gid != w->attr.st_gid
2803 || w->prev.st_rdev != w->attr.st_rdev 3766 || prev.st_rdev != w->attr.st_rdev
2804 || w->prev.st_size != w->attr.st_size 3767 || prev.st_size != w->attr.st_size
2805 || w->prev.st_atime != w->attr.st_atime 3768 || prev.st_atime != w->attr.st_atime
2806 || w->prev.st_mtime != w->attr.st_mtime 3769 || prev.st_mtime != w->attr.st_mtime
2807 || w->prev.st_ctime != w->attr.st_ctime 3770 || prev.st_ctime != w->attr.st_ctime
2808 ) { 3771 ) {
3772 /* we only update w->prev on actual differences */
3773 /* in case we test more often than invoke the callback, */
3774 /* to ensure that prev is always different to attr */
3775 w->prev = prev;
3776
2809 #if EV_USE_INOTIFY 3777 #if EV_USE_INOTIFY
2810 if (fs_fd >= 0) 3778 if (fs_fd >= 0)
2811 { 3779 {
2812 infy_del (EV_A_ w); 3780 infy_del (EV_A_ w);
2813 infy_add (EV_A_ w); 3781 infy_add (EV_A_ w);
… …
2838 3806
2839 if (fs_fd >= 0) 3807 if (fs_fd >= 0)
2840 infy_add (EV_A_ w); 3808 infy_add (EV_A_ w);
2841 else 3809 else
2842#endif 3810#endif
3811 {
2843 ev_timer_again (EV_A_ &w->timer); 3812 ev_timer_again (EV_A_ &w->timer);
3813 ev_unref (EV_A);
3814 }
2844 3815
2845 ev_start (EV_A_ (W)w, 1); 3816 ev_start (EV_A_ (W)w, 1);
2846 3817
2847 EV_FREQUENT_CHECK; 3818 EV_FREQUENT_CHECK;
2848} 3819}
… …
2857 EV_FREQUENT_CHECK; 3828 EV_FREQUENT_CHECK;
2858 3829
2859#if EV_USE_INOTIFY 3830#if EV_USE_INOTIFY
2860 infy_del (EV_A_ w); 3831 infy_del (EV_A_ w);
2861#endif 3832#endif
3833
3834 if (ev_is_active (&w->timer))
3835 {
3836 ev_ref (EV_A);
2862 ev_timer_stop (EV_A_ &w->timer); 3837 ev_timer_stop (EV_A_ &w->timer);
3838 }
2863 3839
2864 ev_stop (EV_A_ (W)w); 3840 ev_stop (EV_A_ (W)w);
2865 3841
2866 EV_FREQUENT_CHECK; 3842 EV_FREQUENT_CHECK;
2867} 3843}
… …
2912 3888
2913 EV_FREQUENT_CHECK; 3889 EV_FREQUENT_CHECK;
2914} 3890}
2915#endif 3891#endif
2916 3892
3893#if EV_PREPARE_ENABLE
2917void 3894void
2918ev_prepare_start (EV_P_ ev_prepare *w) 3895ev_prepare_start (EV_P_ ev_prepare *w)
2919{ 3896{
2920 if (expect_false (ev_is_active (w))) 3897 if (expect_false (ev_is_active (w)))
2921 return; 3898 return;
… …
2947 3924
2948 ev_stop (EV_A_ (W)w); 3925 ev_stop (EV_A_ (W)w);
2949 3926
2950 EV_FREQUENT_CHECK; 3927 EV_FREQUENT_CHECK;
2951} 3928}
3929#endif
2952 3930
3931#if EV_CHECK_ENABLE
2953void 3932void
2954ev_check_start (EV_P_ ev_check *w) 3933ev_check_start (EV_P_ ev_check *w)
2955{ 3934{
2956 if (expect_false (ev_is_active (w))) 3935 if (expect_false (ev_is_active (w)))
2957 return; 3936 return;
… …
2983 3962
2984 ev_stop (EV_A_ (W)w); 3963 ev_stop (EV_A_ (W)w);
2985 3964
2986 EV_FREQUENT_CHECK; 3965 EV_FREQUENT_CHECK;
2987} 3966}
3967#endif
2988 3968
2989#if EV_EMBED_ENABLE 3969#if EV_EMBED_ENABLE
2990void noinline 3970void noinline
2991ev_embed_sweep (EV_P_ ev_embed *w) 3971ev_embed_sweep (EV_P_ ev_embed *w)
2992{ 3972{
2993 ev_loop (w->other, EVLOOP_NONBLOCK); 3973 ev_run (w->other, EVRUN_NOWAIT);
2994} 3974}
2995 3975
2996static void 3976static void
2997embed_io_cb (EV_P_ ev_io *io, int revents) 3977embed_io_cb (EV_P_ ev_io *io, int revents)
2998{ 3978{
2999 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3979 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3000 3980
3001 if (ev_cb (w)) 3981 if (ev_cb (w))
3002 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3982 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3003 else 3983 else
3004 ev_loop (w->other, EVLOOP_NONBLOCK); 3984 ev_run (w->other, EVRUN_NOWAIT);
3005} 3985}
3006 3986
3007static void 3987static void
3008embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3988embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3009{ 3989{
3010 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3990 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3011 3991
3012 { 3992 {
3013 struct ev_loop *loop = w->other; 3993 EV_P = w->other;
3014 3994
3015 while (fdchangecnt) 3995 while (fdchangecnt)
3016 { 3996 {
3017 fd_reify (EV_A); 3997 fd_reify (EV_A);
3018 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3998 ev_run (EV_A_ EVRUN_NOWAIT);
3019 } 3999 }
3020 } 4000 }
3021} 4001}
3022 4002
3023static void 4003static void
… …
3026 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4006 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3027 4007
3028 ev_embed_stop (EV_A_ w); 4008 ev_embed_stop (EV_A_ w);
3029 4009
3030 { 4010 {
3031 struct ev_loop *loop = w->other; 4011 EV_P = w->other;
3032 4012
3033 ev_loop_fork (EV_A); 4013 ev_loop_fork (EV_A);
3034 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4014 ev_run (EV_A_ EVRUN_NOWAIT);
3035 } 4015 }
3036 4016
3037 ev_embed_start (EV_A_ w); 4017 ev_embed_start (EV_A_ w);
3038} 4018}
3039 4019
… …
3050{ 4030{
3051 if (expect_false (ev_is_active (w))) 4031 if (expect_false (ev_is_active (w)))
3052 return; 4032 return;
3053 4033
3054 { 4034 {
3055 struct ev_loop *loop = w->other; 4035 EV_P = w->other;
3056 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4036 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3057 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4037 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3058 } 4038 }
3059 4039
3060 EV_FREQUENT_CHECK; 4040 EV_FREQUENT_CHECK;
… …
3087 4067
3088 ev_io_stop (EV_A_ &w->io); 4068 ev_io_stop (EV_A_ &w->io);
3089 ev_prepare_stop (EV_A_ &w->prepare); 4069 ev_prepare_stop (EV_A_ &w->prepare);
3090 ev_fork_stop (EV_A_ &w->fork); 4070 ev_fork_stop (EV_A_ &w->fork);
3091 4071
4072 ev_stop (EV_A_ (W)w);
4073
3092 EV_FREQUENT_CHECK; 4074 EV_FREQUENT_CHECK;
3093} 4075}
3094#endif 4076#endif
3095 4077
3096#if EV_FORK_ENABLE 4078#if EV_FORK_ENABLE
… …
3129 4111
3130 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3131} 4113}
3132#endif 4114#endif
3133 4115
4116#if EV_CLEANUP_ENABLE
4117void
4118ev_cleanup_start (EV_P_ ev_cleanup *w)
4119{
4120 if (expect_false (ev_is_active (w)))
4121 return;
4122
4123 EV_FREQUENT_CHECK;
4124
4125 ev_start (EV_A_ (W)w, ++cleanupcnt);
4126 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4127 cleanups [cleanupcnt - 1] = w;
4128
4129 /* cleanup watchers should never keep a refcount on the loop */
4130 ev_unref (EV_A);
4131 EV_FREQUENT_CHECK;
4132}
4133
4134void
4135ev_cleanup_stop (EV_P_ ev_cleanup *w)
4136{
4137 clear_pending (EV_A_ (W)w);
4138 if (expect_false (!ev_is_active (w)))
4139 return;
4140
4141 EV_FREQUENT_CHECK;
4142 ev_ref (EV_A);
4143
4144 {
4145 int active = ev_active (w);
4146
4147 cleanups [active - 1] = cleanups [--cleanupcnt];
4148 ev_active (cleanups [active - 1]) = active;
4149 }
4150
4151 ev_stop (EV_A_ (W)w);
4152
4153 EV_FREQUENT_CHECK;
4154}
4155#endif
4156
3134#if EV_ASYNC_ENABLE 4157#if EV_ASYNC_ENABLE
3135void 4158void
3136ev_async_start (EV_P_ ev_async *w) 4159ev_async_start (EV_P_ ev_async *w)
3137{ 4160{
3138 if (expect_false (ev_is_active (w))) 4161 if (expect_false (ev_is_active (w)))
3139 return; 4162 return;
3140 4163
4164 w->sent = 0;
4165
3141 evpipe_init (EV_A); 4166 evpipe_init (EV_A);
3142 4167
3143 EV_FREQUENT_CHECK; 4168 EV_FREQUENT_CHECK;
3144 4169
3145 ev_start (EV_A_ (W)w, ++asynccnt); 4170 ev_start (EV_A_ (W)w, ++asynccnt);
… …
3172 4197
3173void 4198void
3174ev_async_send (EV_P_ ev_async *w) 4199ev_async_send (EV_P_ ev_async *w)
3175{ 4200{
3176 w->sent = 1; 4201 w->sent = 1;
3177 evpipe_write (EV_A_ &gotasync); 4202 evpipe_write (EV_A_ &async_pending);
3178} 4203}
3179#endif 4204#endif
3180 4205
3181/*****************************************************************************/ 4206/*****************************************************************************/
3182 4207
… …
3222{ 4247{
3223 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4248 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3224 4249
3225 if (expect_false (!once)) 4250 if (expect_false (!once))
3226 { 4251 {
3227 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4252 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3228 return; 4253 return;
3229 } 4254 }
3230 4255
3231 once->cb = cb; 4256 once->cb = cb;
3232 once->arg = arg; 4257 once->arg = arg;
… …
3247} 4272}
3248 4273
3249/*****************************************************************************/ 4274/*****************************************************************************/
3250 4275
3251#if EV_WALK_ENABLE 4276#if EV_WALK_ENABLE
3252void 4277void ecb_cold
3253ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4278ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3254{ 4279{
3255 int i, j; 4280 int i, j;
3256 ev_watcher_list *wl, *wn; 4281 ev_watcher_list *wl, *wn;
3257 4282
… …
3301 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4326 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3302#endif 4327#endif
3303 4328
3304#if EV_IDLE_ENABLE 4329#if EV_IDLE_ENABLE
3305 if (types & EV_IDLE) 4330 if (types & EV_IDLE)
3306 for (j = NUMPRI; i--; ) 4331 for (j = NUMPRI; j--; )
3307 for (i = idlecnt [j]; i--; ) 4332 for (i = idlecnt [j]; i--; )
3308 cb (EV_A_ EV_IDLE, idles [j][i]); 4333 cb (EV_A_ EV_IDLE, idles [j][i]);
3309#endif 4334#endif
3310 4335
3311#if EV_FORK_ENABLE 4336#if EV_FORK_ENABLE
… …
3319 if (types & EV_ASYNC) 4344 if (types & EV_ASYNC)
3320 for (i = asynccnt; i--; ) 4345 for (i = asynccnt; i--; )
3321 cb (EV_A_ EV_ASYNC, asyncs [i]); 4346 cb (EV_A_ EV_ASYNC, asyncs [i]);
3322#endif 4347#endif
3323 4348
4349#if EV_PREPARE_ENABLE
3324 if (types & EV_PREPARE) 4350 if (types & EV_PREPARE)
3325 for (i = preparecnt; i--; ) 4351 for (i = preparecnt; i--; )
3326#if EV_EMBED_ENABLE 4352# if EV_EMBED_ENABLE
3327 if (ev_cb (prepares [i]) != embed_prepare_cb) 4353 if (ev_cb (prepares [i]) != embed_prepare_cb)
3328#endif 4354# endif
3329 cb (EV_A_ EV_PREPARE, prepares [i]); 4355 cb (EV_A_ EV_PREPARE, prepares [i]);
4356#endif
3330 4357
4358#if EV_CHECK_ENABLE
3331 if (types & EV_CHECK) 4359 if (types & EV_CHECK)
3332 for (i = checkcnt; i--; ) 4360 for (i = checkcnt; i--; )
3333 cb (EV_A_ EV_CHECK, checks [i]); 4361 cb (EV_A_ EV_CHECK, checks [i]);
4362#endif
3334 4363
4364#if EV_SIGNAL_ENABLE
3335 if (types & EV_SIGNAL) 4365 if (types & EV_SIGNAL)
3336 for (i = 0; i < signalmax; ++i) 4366 for (i = 0; i < EV_NSIG - 1; ++i)
3337 for (wl = signals [i].head; wl; ) 4367 for (wl = signals [i].head; wl; )
3338 { 4368 {
3339 wn = wl->next; 4369 wn = wl->next;
3340 cb (EV_A_ EV_SIGNAL, wl); 4370 cb (EV_A_ EV_SIGNAL, wl);
3341 wl = wn; 4371 wl = wn;
3342 } 4372 }
4373#endif
3343 4374
4375#if EV_CHILD_ENABLE
3344 if (types & EV_CHILD) 4376 if (types & EV_CHILD)
3345 for (i = EV_PID_HASHSIZE; i--; ) 4377 for (i = (EV_PID_HASHSIZE); i--; )
3346 for (wl = childs [i]; wl; ) 4378 for (wl = childs [i]; wl; )
3347 { 4379 {
3348 wn = wl->next; 4380 wn = wl->next;
3349 cb (EV_A_ EV_CHILD, wl); 4381 cb (EV_A_ EV_CHILD, wl);
3350 wl = wn; 4382 wl = wn;
3351 } 4383 }
4384#endif
3352/* EV_STAT 0x00001000 /* stat data changed */ 4385/* EV_STAT 0x00001000 /* stat data changed */
3353/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4386/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3354} 4387}
3355#endif 4388#endif
3356 4389
3357#if EV_MULTIPLICITY 4390#if EV_MULTIPLICITY
3358 #include "ev_wrap.h" 4391 #include "ev_wrap.h"
3359#endif 4392#endif
3360 4393
3361#ifdef __cplusplus 4394EV_CPP(})
3362}
3363#endif
3364 4395

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