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Comparing libev/ev.c (file contents):
Revision 1.301 by root, Wed Jul 15 16:58:53 2009 UTC vs.
Revision 1.392 by root, Thu Aug 4 14:37:49 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138# ifndef EV_USE_EVENTFD 148# ifndef EV_USE_SIGNALFD
139# if HAVE_EVENTFD 149# define EV_USE_SIGNALFD EV_FEATURE_OS
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
154# endif
155
156# if HAVE_EVENTFD
157# ifndef EV_USE_EVENTFD
158# define EV_USE_EVENTFD EV_FEATURE_OS
159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
144# endif 163# endif
145 164
146#endif 165#endif
147 166
148#include <math.h>
149#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
150#include <fcntl.h> 169#include <fcntl.h>
151#include <stddef.h> 170#include <stddef.h>
152 171
153#include <stdio.h> 172#include <stdio.h>
154 173
155#include <assert.h> 174#include <assert.h>
156#include <errno.h> 175#include <errno.h>
157#include <sys/types.h> 176#include <sys/types.h>
158#include <time.h> 177#include <time.h>
178#include <limits.h>
159 179
160#include <signal.h> 180#include <signal.h>
161 181
162#ifdef EV_H 182#ifdef EV_H
163# include EV_H 183# include EV_H
164#else 184#else
165# include "ev.h" 185# include "ev.h"
166#endif 186#endif
187
188EV_CPP(extern "C" {)
167 189
168#ifndef _WIN32 190#ifndef _WIN32
169# include <sys/time.h> 191# include <sys/time.h>
170# include <sys/wait.h> 192# include <sys/wait.h>
171# include <unistd.h> 193# include <unistd.h>
… …
174# define WIN32_LEAN_AND_MEAN 196# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 197# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 198# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 199# define EV_SELECT_IS_WINSOCKET 1
178# endif 200# endif
201# undef EV_AVOID_STDIO
179#endif 202#endif
203
204/* OS X, in its infinite idiocy, actually HARDCODES
205 * a limit of 1024 into their select. Where people have brains,
206 * OS X engineers apparently have a vacuum. Or maybe they were
207 * ordered to have a vacuum, or they do anything for money.
208 * This might help. Or not.
209 */
210#define _DARWIN_UNLIMITED_SELECT 1
180 211
181/* this block tries to deduce configuration from header-defined symbols and defaults */ 212/* this block tries to deduce configuration from header-defined symbols and defaults */
213
214/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG)
216/* use what's provided */
217#elif defined (NSIG)
218# define EV_NSIG (NSIG)
219#elif defined(_NSIG)
220# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX)
222# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX)
224# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX)
226# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG)
228# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG)
230# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE)
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig)
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else
236# error "unable to find value for NSIG, please report"
237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
239# define EV_NSIG 65
240#endif
241
242#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0
244#endif
182 245
183#ifndef EV_USE_CLOCK_SYSCALL 246#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 247# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 249# else
187# define EV_USE_CLOCK_SYSCALL 0 250# define EV_USE_CLOCK_SYSCALL 0
188# endif 251# endif
189#endif 252#endif
190 253
191#ifndef EV_USE_MONOTONIC 254#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 256# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 257# else
195# define EV_USE_MONOTONIC 0 258# define EV_USE_MONOTONIC 0
196# endif 259# endif
197#endif 260#endif
198 261
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 263# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 264#endif
202 265
203#ifndef EV_USE_NANOSLEEP 266#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 267# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 268# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 269# else
207# define EV_USE_NANOSLEEP 0 270# define EV_USE_NANOSLEEP 0
208# endif 271# endif
209#endif 272#endif
210 273
211#ifndef EV_USE_SELECT 274#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 275# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 276#endif
214 277
215#ifndef EV_USE_POLL 278#ifndef EV_USE_POLL
216# ifdef _WIN32 279# ifdef _WIN32
217# define EV_USE_POLL 0 280# define EV_USE_POLL 0
218# else 281# else
219# define EV_USE_POLL 1 282# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 283# endif
221#endif 284#endif
222 285
223#ifndef EV_USE_EPOLL 286#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 287# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 288# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 289# else
227# define EV_USE_EPOLL 0 290# define EV_USE_EPOLL 0
228# endif 291# endif
229#endif 292#endif
230 293
… …
236# define EV_USE_PORT 0 299# define EV_USE_PORT 0
237#endif 300#endif
238 301
239#ifndef EV_USE_INOTIFY 302#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 304# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 305# else
243# define EV_USE_INOTIFY 0 306# define EV_USE_INOTIFY 0
244# endif 307# endif
245#endif 308#endif
246 309
247#ifndef EV_PID_HASHSIZE 310#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 311# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249# define EV_PID_HASHSIZE 1
250# else
251# define EV_PID_HASHSIZE 16
252# endif
253#endif 312#endif
254 313
255#ifndef EV_INOTIFY_HASHSIZE 314#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 315# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_INOTIFY_HASHSIZE 1
258# else
259# define EV_INOTIFY_HASHSIZE 16
260# endif
261#endif 316#endif
262 317
263#ifndef EV_USE_EVENTFD 318#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 320# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 321# else
267# define EV_USE_EVENTFD 0 322# define EV_USE_EVENTFD 0
323# endif
324#endif
325
326#ifndef EV_USE_SIGNALFD
327# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
328# define EV_USE_SIGNALFD EV_FEATURE_OS
329# else
330# define EV_USE_SIGNALFD 0
268# endif 331# endif
269#endif 332#endif
270 333
271#if 0 /* debugging */ 334#if 0 /* debugging */
272# define EV_VERIFY 3 335# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 336# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 337# define EV_HEAP_CACHE_AT 1
275#endif 338#endif
276 339
277#ifndef EV_VERIFY 340#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 341# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 342#endif
280 343
281#ifndef EV_USE_4HEAP 344#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 345# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 346#endif
284 347
285#ifndef EV_HEAP_CACHE_AT 348#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif 350#endif
288 351
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290/* which makes programs even slower. might work on other unices, too. */ 353/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 354#if EV_USE_CLOCK_SYSCALL
… …
300# endif 363# endif
301#endif 364#endif
302 365
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 366/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304 367
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
305#ifndef CLOCK_MONOTONIC 374#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 375# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 376# define EV_USE_MONOTONIC 0
308#endif 377#endif
309 378
… …
316# undef EV_USE_INOTIFY 385# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0 386# define EV_USE_INOTIFY 0
318#endif 387#endif
319 388
320#if !EV_USE_NANOSLEEP 389#if !EV_USE_NANOSLEEP
321# ifndef _WIN32 390/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux)
322# include <sys/select.h> 392# include <sys/select.h>
323# endif 393# endif
324#endif 394#endif
325 395
326#if EV_USE_INOTIFY 396#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 397# include <sys/statfs.h>
329# include <sys/inotify.h> 398# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 400# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 401# undef EV_USE_INOTIFY
… …
339#endif 408#endif
340 409
341#if EV_USE_EVENTFD 410#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 412# include <stdint.h>
344# ifdef __cplusplus 413# ifndef EFD_NONBLOCK
345extern "C" { 414# define EFD_NONBLOCK O_NONBLOCK
346# endif 415# endif
347int eventfd (unsigned int initval, int flags); 416# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 417# ifdef O_CLOEXEC
349} 418# define EFD_CLOEXEC O_CLOEXEC
419# else
420# define EFD_CLOEXEC 02000000
421# endif
350# endif 422# endif
423EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
424#endif
425
426#if EV_USE_SIGNALFD
427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
428# include <stdint.h>
429# ifndef SFD_NONBLOCK
430# define SFD_NONBLOCK O_NONBLOCK
431# endif
432# ifndef SFD_CLOEXEC
433# ifdef O_CLOEXEC
434# define SFD_CLOEXEC O_CLOEXEC
435# else
436# define SFD_CLOEXEC 02000000
437# endif
438# endif
439EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
440
441struct signalfd_siginfo
442{
443 uint32_t ssi_signo;
444 char pad[128 - sizeof (uint32_t)];
445};
351#endif 446#endif
352 447
353/**/ 448/**/
354 449
355#if EV_VERIFY >= 3 450#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 451# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 452#else
358# define EV_FREQUENT_CHECK do { } while (0) 453# define EV_FREQUENT_CHECK do { } while (0)
359#endif 454#endif
360 455
361/* 456/*
362 * This is used to avoid floating point rounding problems. 457 * This is used to work around floating point rounding problems.
363 * It is added to ev_rt_now when scheduling periodics
364 * to ensure progress, time-wise, even when rounding
365 * errors are against us.
366 * This value is good at least till the year 4000. 458 * This value is good at least till the year 4000.
367 * Better solutions welcome.
368 */ 459 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 460#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
461/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
370 462
371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 463#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
372#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
373/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
374 465
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468
469/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470/* ECB.H BEGIN */
471/*
472 * libecb - http://software.schmorp.de/pkg/libecb
473 *
474 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de>
475 * Copyright (©) 2011 Emanuele Giaquinta
476 * All rights reserved.
477 *
478 * Redistribution and use in source and binary forms, with or without modifica-
479 * tion, are permitted provided that the following conditions are met:
480 *
481 * 1. Redistributions of source code must retain the above copyright notice,
482 * this list of conditions and the following disclaimer.
483 *
484 * 2. Redistributions in binary form must reproduce the above copyright
485 * notice, this list of conditions and the following disclaimer in the
486 * documentation and/or other materials provided with the distribution.
487 *
488 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
489 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
490 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
491 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
492 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
493 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
494 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
495 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
496 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
497 * OF THE POSSIBILITY OF SUCH DAMAGE.
498 */
499
500#ifndef ECB_H
501#define ECB_H
502
503#ifdef _WIN32
504 typedef signed char int8_t;
505 typedef unsigned char uint8_t;
506 typedef signed short int16_t;
507 typedef unsigned short uint16_t;
508 typedef signed int int32_t;
509 typedef unsigned int uint32_t;
375#if __GNUC__ >= 4 510 #if __GNUC__
376# define expect(expr,value) __builtin_expect ((expr),(value)) 511 typedef signed long long int64_t;
377# define noinline __attribute__ ((noinline)) 512 typedef unsigned long long uint64_t;
513 #else /* _MSC_VER || __BORLANDC__ */
514 typedef signed __int64 int64_t;
515 typedef unsigned __int64 uint64_t;
516 #endif
378#else 517#else
379# define expect(expr,value) (expr) 518 #include <inttypes.h>
380# define noinline
381# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
382# define inline
383# endif 519#endif
520
521/* many compilers define _GNUC_ to some versions but then only implement
522 * what their idiot authors think are the "more important" extensions,
523 * causing enormous grief in return for some better fake benchmark numbers.
524 * or so.
525 * we try to detect these and simply assume they are not gcc - if they have
526 * an issue with that they should have done it right in the first place.
527 */
528#ifndef ECB_GCC_VERSION
529 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
530 #define ECB_GCC_VERSION(major,minor) 0
531 #else
532 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
384#endif 533 #endif
534#endif
385 535
536/*****************************************************************************/
537
538/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
539/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540
541#if ECB_NO_THREADS || ECB_NO_SMP
542 #define ECB_MEMORY_FENCE do { } while (0)
543 #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0)
544 #define ECB_MEMORY_FENCE_RELEASE do { } while (0)
545#endif
546
547#ifndef ECB_MEMORY_FENCE
548 #if ECB_GCC_VERSION(2,5)
549 #if __x86
550 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
551 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
552 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
553 #elif __amd64
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
555 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
556 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
557 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
558 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
559 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
560 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) \
561 || defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
562 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
563 #define ECB_MEMORY_FENCE \
564 do { \
565 int null = 0; \
566 __asm__ __volatile__ ("mcr p15,0,%0,c6,c10,5", : "=&r" (null) : : "memory"); \
567 while (0)
568 #endif
569 #endif
570#endif
571
572#ifndef ECB_MEMORY_FENCE
573 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER)
574 #define ECB_MEMORY_FENCE __sync_synchronize ()
575 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
576 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
577 #elif _MSC_VER >= 1400 /* VC++ 2005 */
578 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
579 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
580 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
581 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
582 #elif defined(_WIN32)
583 #include <WinNT.h>
584 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
585 #endif
586#endif
587
588#ifndef ECB_MEMORY_FENCE
589 #if !ECB_AVOID_PTHREADS
590 /*
591 * if you get undefined symbol references to pthread_mutex_lock,
592 * or failure to find pthread.h, then you should implement
593 * the ECB_MEMORY_FENCE operations for your cpu/compiler
594 * OR provide pthread.h and link against the posix thread library
595 * of your system.
596 */
597 #include <pthread.h>
598 #define ECB_NEEDS_PTHREADS 1
599 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
600
601 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
602 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
603 #endif
604#endif
605
606#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
607 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
608#endif
609
610#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
611 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
612#endif
613
614/*****************************************************************************/
615
616#define ECB_C99 (__STDC_VERSION__ >= 199901L)
617
618#if __cplusplus
619 #define ecb_inline static inline
620#elif ECB_GCC_VERSION(2,5)
621 #define ecb_inline static __inline__
622#elif ECB_C99
623 #define ecb_inline static inline
624#else
625 #define ecb_inline static
626#endif
627
628#if ECB_GCC_VERSION(3,3)
629 #define ecb_restrict __restrict__
630#elif ECB_C99
631 #define ecb_restrict restrict
632#else
633 #define ecb_restrict
634#endif
635
636typedef int ecb_bool;
637
638#define ECB_CONCAT_(a, b) a ## b
639#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
640#define ECB_STRINGIFY_(a) # a
641#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
642
643#define ecb_function_ ecb_inline
644
645#if ECB_GCC_VERSION(3,1)
646 #define ecb_attribute(attrlist) __attribute__(attrlist)
647 #define ecb_is_constant(expr) __builtin_constant_p (expr)
648 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
649 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
650#else
651 #define ecb_attribute(attrlist)
652 #define ecb_is_constant(expr) 0
653 #define ecb_expect(expr,value) (expr)
654 #define ecb_prefetch(addr,rw,locality)
655#endif
656
657/* no emulation for ecb_decltype */
658#if ECB_GCC_VERSION(4,5)
659 #define ecb_decltype(x) __decltype(x)
660#elif ECB_GCC_VERSION(3,0)
661 #define ecb_decltype(x) __typeof(x)
662#endif
663
664#define ecb_noinline ecb_attribute ((__noinline__))
665#define ecb_noreturn ecb_attribute ((__noreturn__))
666#define ecb_unused ecb_attribute ((__unused__))
667#define ecb_const ecb_attribute ((__const__))
668#define ecb_pure ecb_attribute ((__pure__))
669
670#if ECB_GCC_VERSION(4,3)
671 #define ecb_artificial ecb_attribute ((__artificial__))
672 #define ecb_hot ecb_attribute ((__hot__))
673 #define ecb_cold ecb_attribute ((__cold__))
674#else
675 #define ecb_artificial
676 #define ecb_hot
677 #define ecb_cold
678#endif
679
680/* put around conditional expressions if you are very sure that the */
681/* expression is mostly true or mostly false. note that these return */
682/* booleans, not the expression. */
386#define expect_false(expr) expect ((expr) != 0, 0) 683#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 684#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
685/* for compatibility to the rest of the world */
686#define ecb_likely(expr) ecb_expect_true (expr)
687#define ecb_unlikely(expr) ecb_expect_false (expr)
688
689/* count trailing zero bits and count # of one bits */
690#if ECB_GCC_VERSION(3,4)
691 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
692 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
693 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
694 #define ecb_ctz32(x) __builtin_ctz (x)
695 #define ecb_ctz64(x) __builtin_ctzll (x)
696 #define ecb_popcount32(x) __builtin_popcount (x)
697 /* no popcountll */
698#else
699 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
700 ecb_function_ int
701 ecb_ctz32 (uint32_t x)
702 {
703 int r = 0;
704
705 x &= ~x + 1; /* this isolates the lowest bit */
706
707#if ECB_branchless_on_i386
708 r += !!(x & 0xaaaaaaaa) << 0;
709 r += !!(x & 0xcccccccc) << 1;
710 r += !!(x & 0xf0f0f0f0) << 2;
711 r += !!(x & 0xff00ff00) << 3;
712 r += !!(x & 0xffff0000) << 4;
713#else
714 if (x & 0xaaaaaaaa) r += 1;
715 if (x & 0xcccccccc) r += 2;
716 if (x & 0xf0f0f0f0) r += 4;
717 if (x & 0xff00ff00) r += 8;
718 if (x & 0xffff0000) r += 16;
719#endif
720
721 return r;
722 }
723
724 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
725 ecb_function_ int
726 ecb_ctz64 (uint64_t x)
727 {
728 int shift = x & 0xffffffffU ? 0 : 32;
729 return ecb_ctz32 (x >> shift) + shift;
730 }
731
732 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
733 ecb_function_ int
734 ecb_popcount32 (uint32_t x)
735 {
736 x -= (x >> 1) & 0x55555555;
737 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
738 x = ((x >> 4) + x) & 0x0f0f0f0f;
739 x *= 0x01010101;
740
741 return x >> 24;
742 }
743
744 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
745 ecb_function_ int ecb_ld32 (uint32_t x)
746 {
747 int r = 0;
748
749 if (x >> 16) { x >>= 16; r += 16; }
750 if (x >> 8) { x >>= 8; r += 8; }
751 if (x >> 4) { x >>= 4; r += 4; }
752 if (x >> 2) { x >>= 2; r += 2; }
753 if (x >> 1) { r += 1; }
754
755 return r;
756 }
757
758 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
759 ecb_function_ int ecb_ld64 (uint64_t x)
760 {
761 int r = 0;
762
763 if (x >> 32) { x >>= 32; r += 32; }
764
765 return r + ecb_ld32 (x);
766 }
767#endif
768
769/* popcount64 is only available on 64 bit cpus as gcc builtin */
770/* so for this version we are lazy */
771ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
772ecb_function_ int
773ecb_popcount64 (uint64_t x)
774{
775 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
776}
777
778ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
779ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
780ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
781ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
782ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
783ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
784ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
785ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
786
787ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
788ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
789ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
790ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
791ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
792ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
793ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
794ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
795
796#if ECB_GCC_VERSION(4,3)
797 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
798 #define ecb_bswap32(x) __builtin_bswap32 (x)
799 #define ecb_bswap64(x) __builtin_bswap64 (x)
800#else
801 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
802 ecb_function_ uint16_t
803 ecb_bswap16 (uint16_t x)
804 {
805 return ecb_rotl16 (x, 8);
806 }
807
808 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
809 ecb_function_ uint32_t
810 ecb_bswap32 (uint32_t x)
811 {
812 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
813 }
814
815 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
816 ecb_function_ uint64_t
817 ecb_bswap64 (uint64_t x)
818 {
819 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
820 }
821#endif
822
823#if ECB_GCC_VERSION(4,5)
824 #define ecb_unreachable() __builtin_unreachable ()
825#else
826 /* this seems to work fine, but gcc always emits a warning for it :/ */
827 ecb_function_ void ecb_unreachable (void) ecb_noreturn;
828 ecb_function_ void ecb_unreachable (void) { }
829#endif
830
831/* try to tell the compiler that some condition is definitely true */
832#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
833
834ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;
835ecb_function_ unsigned char
836ecb_byteorder_helper (void)
837{
838 const uint32_t u = 0x11223344;
839 return *(unsigned char *)&u;
840}
841
842ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;
843ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
844ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;
845ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
846
847#if ECB_GCC_VERSION(3,0) || ECB_C99
848 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
849#else
850 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
851#endif
852
853#if ecb_cplusplus_does_not_suck
854 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
855 template<typename T, int N>
856 static inline int ecb_array_length (const T (&arr)[N])
857 {
858 return N;
859 }
860#else
861 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
862#endif
863
864#endif
865
866/* ECB.H END */
867
868#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
869# undef ECB_MEMORY_FENCE
870# undef ECB_MEMORY_FENCE_ACQUIRE
871# undef ECB_MEMORY_FENCE_RELEASE
872#endif
873
874#define expect_false(cond) ecb_expect_false (cond)
875#define expect_true(cond) ecb_expect_true (cond)
876#define noinline ecb_noinline
877
388#define inline_size static inline 878#define inline_size ecb_inline
389 879
390#if EV_MINIMAL 880#if EV_FEATURE_CODE
881# define inline_speed ecb_inline
882#else
391# define inline_speed static noinline 883# define inline_speed static noinline
392#else
393# define inline_speed static inline
394#endif 884#endif
395 885
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 886#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397 887
398#if EV_MINPRI == EV_MAXPRI 888#if EV_MINPRI == EV_MAXPRI
… …
411#define ev_active(w) ((W)(w))->active 901#define ev_active(w) ((W)(w))->active
412#define ev_at(w) ((WT)(w))->at 902#define ev_at(w) ((WT)(w))->at
413 903
414#if EV_USE_REALTIME 904#if EV_USE_REALTIME
415/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 905/* sig_atomic_t is used to avoid per-thread variables or locking but still */
416/* giving it a reasonably high chance of working on typical architetcures */ 906/* giving it a reasonably high chance of working on typical architectures */
417static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 907static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
418#endif 908#endif
419 909
420#if EV_USE_MONOTONIC 910#if EV_USE_MONOTONIC
421static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 911static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422#endif 912#endif
423 913
914#ifndef EV_FD_TO_WIN32_HANDLE
915# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
916#endif
917#ifndef EV_WIN32_HANDLE_TO_FD
918# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
919#endif
920#ifndef EV_WIN32_CLOSE_FD
921# define EV_WIN32_CLOSE_FD(fd) close (fd)
922#endif
923
424#ifdef _WIN32 924#ifdef _WIN32
425# include "ev_win32.c" 925# include "ev_win32.c"
426#endif 926#endif
427 927
428/*****************************************************************************/ 928/*****************************************************************************/
429 929
930/* define a suitable floor function (only used by periodics atm) */
931
932#if EV_USE_FLOOR
933# include <math.h>
934# define ev_floor(v) floor (v)
935#else
936
937#include <float.h>
938
939/* a floor() replacement function, should be independent of ev_tstamp type */
940static ev_tstamp noinline
941ev_floor (ev_tstamp v)
942{
943 /* the choice of shift factor is not terribly important */
944#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
945 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
946#else
947 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
948#endif
949
950 /* argument too large for an unsigned long? */
951 if (expect_false (v >= shift))
952 {
953 ev_tstamp f;
954
955 if (v == v - 1.)
956 return v; /* very large number */
957
958 f = shift * ev_floor (v * (1. / shift));
959 return f + ev_floor (v - f);
960 }
961
962 /* special treatment for negative args? */
963 if (expect_false (v < 0.))
964 {
965 ev_tstamp f = -ev_floor (-v);
966
967 return f - (f == v ? 0 : 1);
968 }
969
970 /* fits into an unsigned long */
971 return (unsigned long)v;
972}
973
974#endif
975
976/*****************************************************************************/
977
978#ifdef __linux
979# include <sys/utsname.h>
980#endif
981
982static unsigned int noinline ecb_cold
983ev_linux_version (void)
984{
985#ifdef __linux
986 unsigned int v = 0;
987 struct utsname buf;
988 int i;
989 char *p = buf.release;
990
991 if (uname (&buf))
992 return 0;
993
994 for (i = 3+1; --i; )
995 {
996 unsigned int c = 0;
997
998 for (;;)
999 {
1000 if (*p >= '0' && *p <= '9')
1001 c = c * 10 + *p++ - '0';
1002 else
1003 {
1004 p += *p == '.';
1005 break;
1006 }
1007 }
1008
1009 v = (v << 8) | c;
1010 }
1011
1012 return v;
1013#else
1014 return 0;
1015#endif
1016}
1017
1018/*****************************************************************************/
1019
1020#if EV_AVOID_STDIO
1021static void noinline ecb_cold
1022ev_printerr (const char *msg)
1023{
1024 write (STDERR_FILENO, msg, strlen (msg));
1025}
1026#endif
1027
430static void (*syserr_cb)(const char *msg); 1028static void (*syserr_cb)(const char *msg);
431 1029
432void 1030void ecb_cold
433ev_set_syserr_cb (void (*cb)(const char *msg)) 1031ev_set_syserr_cb (void (*cb)(const char *msg))
434{ 1032{
435 syserr_cb = cb; 1033 syserr_cb = cb;
436} 1034}
437 1035
438static void noinline 1036static void noinline ecb_cold
439ev_syserr (const char *msg) 1037ev_syserr (const char *msg)
440{ 1038{
441 if (!msg) 1039 if (!msg)
442 msg = "(libev) system error"; 1040 msg = "(libev) system error";
443 1041
444 if (syserr_cb) 1042 if (syserr_cb)
445 syserr_cb (msg); 1043 syserr_cb (msg);
446 else 1044 else
447 { 1045 {
1046#if EV_AVOID_STDIO
1047 ev_printerr (msg);
1048 ev_printerr (": ");
1049 ev_printerr (strerror (errno));
1050 ev_printerr ("\n");
1051#else
448 perror (msg); 1052 perror (msg);
1053#endif
449 abort (); 1054 abort ();
450 } 1055 }
451} 1056}
452 1057
453static void * 1058static void *
454ev_realloc_emul (void *ptr, long size) 1059ev_realloc_emul (void *ptr, long size)
455{ 1060{
1061#if __GLIBC__
1062 return realloc (ptr, size);
1063#else
456 /* some systems, notably openbsd and darwin, fail to properly 1064 /* some systems, notably openbsd and darwin, fail to properly
457 * implement realloc (x, 0) (as required by both ansi c-98 and 1065 * implement realloc (x, 0) (as required by both ansi c-89 and
458 * the single unix specification, so work around them here. 1066 * the single unix specification, so work around them here.
459 */ 1067 */
460 1068
461 if (size) 1069 if (size)
462 return realloc (ptr, size); 1070 return realloc (ptr, size);
463 1071
464 free (ptr); 1072 free (ptr);
465 return 0; 1073 return 0;
1074#endif
466} 1075}
467 1076
468static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1077static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
469 1078
470void 1079void ecb_cold
471ev_set_allocator (void *(*cb)(void *ptr, long size)) 1080ev_set_allocator (void *(*cb)(void *ptr, long size))
472{ 1081{
473 alloc = cb; 1082 alloc = cb;
474} 1083}
475 1084
… …
478{ 1087{
479 ptr = alloc (ptr, size); 1088 ptr = alloc (ptr, size);
480 1089
481 if (!ptr && size) 1090 if (!ptr && size)
482 { 1091 {
1092#if EV_AVOID_STDIO
1093 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1094#else
483 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1095 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1096#endif
484 abort (); 1097 abort ();
485 } 1098 }
486 1099
487 return ptr; 1100 return ptr;
488} 1101}
… …
504 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1117 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
505 unsigned char unused; 1118 unsigned char unused;
506#if EV_USE_EPOLL 1119#if EV_USE_EPOLL
507 unsigned int egen; /* generation counter to counter epoll bugs */ 1120 unsigned int egen; /* generation counter to counter epoll bugs */
508#endif 1121#endif
509#if EV_SELECT_IS_WINSOCKET 1122#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
510 SOCKET handle; 1123 SOCKET handle;
1124#endif
1125#if EV_USE_IOCP
1126 OVERLAPPED or, ow;
511#endif 1127#endif
512} ANFD; 1128} ANFD;
513 1129
514/* stores the pending event set for a given watcher */ 1130/* stores the pending event set for a given watcher */
515typedef struct 1131typedef struct
… …
570 1186
571 static int ev_default_loop_ptr; 1187 static int ev_default_loop_ptr;
572 1188
573#endif 1189#endif
574 1190
575#if EV_MINIMAL < 2 1191#if EV_FEATURE_API
576# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1192# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
577# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1193# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
578# define EV_INVOKE_PENDING invoke_cb (EV_A) 1194# define EV_INVOKE_PENDING invoke_cb (EV_A)
579#else 1195#else
580# define EV_RELEASE_CB (void)0 1196# define EV_RELEASE_CB (void)0
581# define EV_ACQUIRE_CB (void)0 1197# define EV_ACQUIRE_CB (void)0
582# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1198# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
583#endif 1199#endif
584 1200
585#define EVUNLOOP_RECURSE 0x80 1201#define EVBREAK_RECURSE 0x80
586 1202
587/*****************************************************************************/ 1203/*****************************************************************************/
588 1204
589#ifndef EV_HAVE_EV_TIME 1205#ifndef EV_HAVE_EV_TIME
590ev_tstamp 1206ev_tstamp
… …
634 if (delay > 0.) 1250 if (delay > 0.)
635 { 1251 {
636#if EV_USE_NANOSLEEP 1252#if EV_USE_NANOSLEEP
637 struct timespec ts; 1253 struct timespec ts;
638 1254
639 ts.tv_sec = (time_t)delay; 1255 EV_TS_SET (ts, delay);
640 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
641
642 nanosleep (&ts, 0); 1256 nanosleep (&ts, 0);
643#elif defined(_WIN32) 1257#elif defined(_WIN32)
644 Sleep ((unsigned long)(delay * 1e3)); 1258 Sleep ((unsigned long)(delay * 1e3));
645#else 1259#else
646 struct timeval tv; 1260 struct timeval tv;
647 1261
648 tv.tv_sec = (time_t)delay;
649 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
650
651 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1262 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
652 /* somehting not guaranteed by newer posix versions, but guaranteed */ 1263 /* something not guaranteed by newer posix versions, but guaranteed */
653 /* by older ones */ 1264 /* by older ones */
1265 EV_TV_SET (tv, delay);
654 select (0, 0, 0, 0, &tv); 1266 select (0, 0, 0, 0, &tv);
655#endif 1267#endif
656 } 1268 }
657} 1269}
658 1270
659/*****************************************************************************/ 1271/*****************************************************************************/
660 1272
661#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1273#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
662 1274
663/* find a suitable new size for the given array, */ 1275/* find a suitable new size for the given array, */
664/* hopefully by rounding to a ncie-to-malloc size */ 1276/* hopefully by rounding to a nice-to-malloc size */
665inline_size int 1277inline_size int
666array_nextsize (int elem, int cur, int cnt) 1278array_nextsize (int elem, int cur, int cnt)
667{ 1279{
668 int ncur = cur + 1; 1280 int ncur = cur + 1;
669 1281
… …
681 } 1293 }
682 1294
683 return ncur; 1295 return ncur;
684} 1296}
685 1297
686static noinline void * 1298static void * noinline ecb_cold
687array_realloc (int elem, void *base, int *cur, int cnt) 1299array_realloc (int elem, void *base, int *cur, int cnt)
688{ 1300{
689 *cur = array_nextsize (elem, *cur, cnt); 1301 *cur = array_nextsize (elem, *cur, cnt);
690 return ev_realloc (base, elem * *cur); 1302 return ev_realloc (base, elem * *cur);
691} 1303}
… …
694 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1306 memset ((void *)(base), 0, sizeof (*(base)) * (count))
695 1307
696#define array_needsize(type,base,cur,cnt,init) \ 1308#define array_needsize(type,base,cur,cnt,init) \
697 if (expect_false ((cnt) > (cur))) \ 1309 if (expect_false ((cnt) > (cur))) \
698 { \ 1310 { \
699 int ocur_ = (cur); \ 1311 int ecb_unused ocur_ = (cur); \
700 (base) = (type *)array_realloc \ 1312 (base) = (type *)array_realloc \
701 (sizeof (type), (base), &(cur), (cnt)); \ 1313 (sizeof (type), (base), &(cur), (cnt)); \
702 init ((base) + (ocur_), (cur) - ocur_); \ 1314 init ((base) + (ocur_), (cur) - ocur_); \
703 } 1315 }
704 1316
… …
765} 1377}
766 1378
767/*****************************************************************************/ 1379/*****************************************************************************/
768 1380
769inline_speed void 1381inline_speed void
770fd_event_nc (EV_P_ int fd, int revents) 1382fd_event_nocheck (EV_P_ int fd, int revents)
771{ 1383{
772 ANFD *anfd = anfds + fd; 1384 ANFD *anfd = anfds + fd;
773 ev_io *w; 1385 ev_io *w;
774 1386
775 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1387 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
787fd_event (EV_P_ int fd, int revents) 1399fd_event (EV_P_ int fd, int revents)
788{ 1400{
789 ANFD *anfd = anfds + fd; 1401 ANFD *anfd = anfds + fd;
790 1402
791 if (expect_true (!anfd->reify)) 1403 if (expect_true (!anfd->reify))
792 fd_event_nc (EV_A_ fd, revents); 1404 fd_event_nocheck (EV_A_ fd, revents);
793} 1405}
794 1406
795void 1407void
796ev_feed_fd_event (EV_P_ int fd, int revents) 1408ev_feed_fd_event (EV_P_ int fd, int revents)
797{ 1409{
798 if (fd >= 0 && fd < anfdmax) 1410 if (fd >= 0 && fd < anfdmax)
799 fd_event_nc (EV_A_ fd, revents); 1411 fd_event_nocheck (EV_A_ fd, revents);
800} 1412}
801 1413
802/* make sure the external fd watch events are in-sync */ 1414/* make sure the external fd watch events are in-sync */
803/* with the kernel/libev internal state */ 1415/* with the kernel/libev internal state */
804inline_size void 1416inline_size void
805fd_reify (EV_P) 1417fd_reify (EV_P)
806{ 1418{
807 int i; 1419 int i;
808 1420
1421#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1422 for (i = 0; i < fdchangecnt; ++i)
1423 {
1424 int fd = fdchanges [i];
1425 ANFD *anfd = anfds + fd;
1426
1427 if (anfd->reify & EV__IOFDSET && anfd->head)
1428 {
1429 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1430
1431 if (handle != anfd->handle)
1432 {
1433 unsigned long arg;
1434
1435 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1436
1437 /* handle changed, but fd didn't - we need to do it in two steps */
1438 backend_modify (EV_A_ fd, anfd->events, 0);
1439 anfd->events = 0;
1440 anfd->handle = handle;
1441 }
1442 }
1443 }
1444#endif
1445
809 for (i = 0; i < fdchangecnt; ++i) 1446 for (i = 0; i < fdchangecnt; ++i)
810 { 1447 {
811 int fd = fdchanges [i]; 1448 int fd = fdchanges [i];
812 ANFD *anfd = anfds + fd; 1449 ANFD *anfd = anfds + fd;
813 ev_io *w; 1450 ev_io *w;
814 1451
815 unsigned char events = 0; 1452 unsigned char o_events = anfd->events;
1453 unsigned char o_reify = anfd->reify;
816 1454
817 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1455 anfd->reify = 0;
818 events |= (unsigned char)w->events;
819 1456
820#if EV_SELECT_IS_WINSOCKET 1457 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
821 if (events)
822 { 1458 {
823 unsigned long arg; 1459 anfd->events = 0;
824 #ifdef EV_FD_TO_WIN32_HANDLE 1460
825 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1461 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
826 #else 1462 anfd->events |= (unsigned char)w->events;
827 anfd->handle = _get_osfhandle (fd); 1463
828 #endif 1464 if (o_events != anfd->events)
829 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1465 o_reify = EV__IOFDSET; /* actually |= */
830 } 1466 }
831#endif
832 1467
833 { 1468 if (o_reify & EV__IOFDSET)
834 unsigned char o_events = anfd->events;
835 unsigned char o_reify = anfd->reify;
836
837 anfd->reify = 0;
838 anfd->events = events;
839
840 if (o_events != events || o_reify & EV__IOFDSET)
841 backend_modify (EV_A_ fd, o_events, events); 1469 backend_modify (EV_A_ fd, o_events, anfd->events);
842 }
843 } 1470 }
844 1471
845 fdchangecnt = 0; 1472 fdchangecnt = 0;
846} 1473}
847 1474
… …
859 fdchanges [fdchangecnt - 1] = fd; 1486 fdchanges [fdchangecnt - 1] = fd;
860 } 1487 }
861} 1488}
862 1489
863/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1490/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
864inline_speed void 1491inline_speed void ecb_cold
865fd_kill (EV_P_ int fd) 1492fd_kill (EV_P_ int fd)
866{ 1493{
867 ev_io *w; 1494 ev_io *w;
868 1495
869 while ((w = (ev_io *)anfds [fd].head)) 1496 while ((w = (ev_io *)anfds [fd].head))
… …
871 ev_io_stop (EV_A_ w); 1498 ev_io_stop (EV_A_ w);
872 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1499 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
873 } 1500 }
874} 1501}
875 1502
876/* check whether the given fd is atcually valid, for error recovery */ 1503/* check whether the given fd is actually valid, for error recovery */
877inline_size int 1504inline_size int ecb_cold
878fd_valid (int fd) 1505fd_valid (int fd)
879{ 1506{
880#ifdef _WIN32 1507#ifdef _WIN32
881 return _get_osfhandle (fd) != -1; 1508 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
882#else 1509#else
883 return fcntl (fd, F_GETFD) != -1; 1510 return fcntl (fd, F_GETFD) != -1;
884#endif 1511#endif
885} 1512}
886 1513
887/* called on EBADF to verify fds */ 1514/* called on EBADF to verify fds */
888static void noinline 1515static void noinline ecb_cold
889fd_ebadf (EV_P) 1516fd_ebadf (EV_P)
890{ 1517{
891 int fd; 1518 int fd;
892 1519
893 for (fd = 0; fd < anfdmax; ++fd) 1520 for (fd = 0; fd < anfdmax; ++fd)
… …
895 if (!fd_valid (fd) && errno == EBADF) 1522 if (!fd_valid (fd) && errno == EBADF)
896 fd_kill (EV_A_ fd); 1523 fd_kill (EV_A_ fd);
897} 1524}
898 1525
899/* called on ENOMEM in select/poll to kill some fds and retry */ 1526/* called on ENOMEM in select/poll to kill some fds and retry */
900static void noinline 1527static void noinline ecb_cold
901fd_enomem (EV_P) 1528fd_enomem (EV_P)
902{ 1529{
903 int fd; 1530 int fd;
904 1531
905 for (fd = anfdmax; fd--; ) 1532 for (fd = anfdmax; fd--; )
906 if (anfds [fd].events) 1533 if (anfds [fd].events)
907 { 1534 {
908 fd_kill (EV_A_ fd); 1535 fd_kill (EV_A_ fd);
909 return; 1536 break;
910 } 1537 }
911} 1538}
912 1539
913/* usually called after fork if backend needs to re-arm all fds from scratch */ 1540/* usually called after fork if backend needs to re-arm all fds from scratch */
914static void noinline 1541static void noinline
… …
923 anfds [fd].emask = 0; 1550 anfds [fd].emask = 0;
924 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1551 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
925 } 1552 }
926} 1553}
927 1554
1555/* used to prepare libev internal fd's */
1556/* this is not fork-safe */
1557inline_speed void
1558fd_intern (int fd)
1559{
1560#ifdef _WIN32
1561 unsigned long arg = 1;
1562 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1563#else
1564 fcntl (fd, F_SETFD, FD_CLOEXEC);
1565 fcntl (fd, F_SETFL, O_NONBLOCK);
1566#endif
1567}
1568
928/*****************************************************************************/ 1569/*****************************************************************************/
929 1570
930/* 1571/*
931 * the heap functions want a real array index. array index 0 uis guaranteed to not 1572 * the heap functions want a real array index. array index 0 is guaranteed to not
932 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1573 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
933 * the branching factor of the d-tree. 1574 * the branching factor of the d-tree.
934 */ 1575 */
935 1576
936/* 1577/*
… …
1004 1645
1005 for (;;) 1646 for (;;)
1006 { 1647 {
1007 int c = k << 1; 1648 int c = k << 1;
1008 1649
1009 if (c > N + HEAP0 - 1) 1650 if (c >= N + HEAP0)
1010 break; 1651 break;
1011 1652
1012 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1653 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1013 ? 1 : 0; 1654 ? 1 : 0;
1014 1655
… …
1050 1691
1051/* move an element suitably so it is in a correct place */ 1692/* move an element suitably so it is in a correct place */
1052inline_size void 1693inline_size void
1053adjustheap (ANHE *heap, int N, int k) 1694adjustheap (ANHE *heap, int N, int k)
1054{ 1695{
1055 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1696 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1056 upheap (heap, k); 1697 upheap (heap, k);
1057 else 1698 else
1058 downheap (heap, N, k); 1699 downheap (heap, N, k);
1059} 1700}
1060 1701
… …
1073/*****************************************************************************/ 1714/*****************************************************************************/
1074 1715
1075/* associate signal watchers to a signal signal */ 1716/* associate signal watchers to a signal signal */
1076typedef struct 1717typedef struct
1077{ 1718{
1719 EV_ATOMIC_T pending;
1720#if EV_MULTIPLICITY
1721 EV_P;
1722#endif
1078 WL head; 1723 WL head;
1079 EV_ATOMIC_T gotsig;
1080} ANSIG; 1724} ANSIG;
1081 1725
1082static ANSIG *signals; 1726static ANSIG signals [EV_NSIG - 1];
1083static int signalmax;
1084
1085static EV_ATOMIC_T gotsig;
1086 1727
1087/*****************************************************************************/ 1728/*****************************************************************************/
1088 1729
1089/* used to prepare libev internal fd's */ 1730#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1090/* this is not fork-safe */
1091inline_speed void
1092fd_intern (int fd)
1093{
1094#ifdef _WIN32
1095 unsigned long arg = 1;
1096 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1097#else
1098 fcntl (fd, F_SETFD, FD_CLOEXEC);
1099 fcntl (fd, F_SETFL, O_NONBLOCK);
1100#endif
1101}
1102 1731
1103static void noinline 1732static void noinline ecb_cold
1104evpipe_init (EV_P) 1733evpipe_init (EV_P)
1105{ 1734{
1106 if (!ev_is_active (&pipe_w)) 1735 if (!ev_is_active (&pipe_w))
1107 { 1736 {
1108#if EV_USE_EVENTFD 1737# if EV_USE_EVENTFD
1738 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1739 if (evfd < 0 && errno == EINVAL)
1109 if ((evfd = eventfd (0, 0)) >= 0) 1740 evfd = eventfd (0, 0);
1741
1742 if (evfd >= 0)
1110 { 1743 {
1111 evpipe [0] = -1; 1744 evpipe [0] = -1;
1112 fd_intern (evfd); 1745 fd_intern (evfd); /* doing it twice doesn't hurt */
1113 ev_io_set (&pipe_w, evfd, EV_READ); 1746 ev_io_set (&pipe_w, evfd, EV_READ);
1114 } 1747 }
1115 else 1748 else
1116#endif 1749# endif
1117 { 1750 {
1118 while (pipe (evpipe)) 1751 while (pipe (evpipe))
1119 ev_syserr ("(libev) error creating signal/async pipe"); 1752 ev_syserr ("(libev) error creating signal/async pipe");
1120 1753
1121 fd_intern (evpipe [0]); 1754 fd_intern (evpipe [0]);
… …
1126 ev_io_start (EV_A_ &pipe_w); 1759 ev_io_start (EV_A_ &pipe_w);
1127 ev_unref (EV_A); /* watcher should not keep loop alive */ 1760 ev_unref (EV_A); /* watcher should not keep loop alive */
1128 } 1761 }
1129} 1762}
1130 1763
1131inline_size void 1764inline_speed void
1132evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1765evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1133{ 1766{
1134 if (!*flag) 1767 if (expect_true (*flag))
1768 return;
1769
1770 *flag = 1;
1771
1772 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1773
1774 pipe_write_skipped = 1;
1775
1776 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1777
1778 if (pipe_write_wanted)
1135 { 1779 {
1780 int old_errno;
1781
1782 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1783
1136 int old_errno = errno; /* save errno because write might clobber it */ 1784 old_errno = errno; /* save errno because write will clobber it */
1137
1138 *flag = 1;
1139 1785
1140#if EV_USE_EVENTFD 1786#if EV_USE_EVENTFD
1141 if (evfd >= 0) 1787 if (evfd >= 0)
1142 { 1788 {
1143 uint64_t counter = 1; 1789 uint64_t counter = 1;
1144 write (evfd, &counter, sizeof (uint64_t)); 1790 write (evfd, &counter, sizeof (uint64_t));
1145 } 1791 }
1146 else 1792 else
1147#endif 1793#endif
1794 {
1795 /* win32 people keep sending patches that change this write() to send() */
1796 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1797 /* so when you think this write should be a send instead, please find out */
1798 /* where your send() is from - it's definitely not the microsoft send, and */
1799 /* tell me. thank you. */
1148 write (evpipe [1], &old_errno, 1); 1800 write (evpipe [1], &(evpipe [1]), 1);
1801 }
1149 1802
1150 errno = old_errno; 1803 errno = old_errno;
1151 } 1804 }
1152} 1805}
1153 1806
1154/* called whenever the libev signal pipe */ 1807/* called whenever the libev signal pipe */
1155/* got some events (signal, async) */ 1808/* got some events (signal, async) */
1156static void 1809static void
1157pipecb (EV_P_ ev_io *iow, int revents) 1810pipecb (EV_P_ ev_io *iow, int revents)
1158{ 1811{
1812 int i;
1813
1814 if (revents & EV_READ)
1815 {
1159#if EV_USE_EVENTFD 1816#if EV_USE_EVENTFD
1160 if (evfd >= 0) 1817 if (evfd >= 0)
1161 { 1818 {
1162 uint64_t counter; 1819 uint64_t counter;
1163 read (evfd, &counter, sizeof (uint64_t)); 1820 read (evfd, &counter, sizeof (uint64_t));
1164 } 1821 }
1165 else 1822 else
1166#endif 1823#endif
1167 { 1824 {
1168 char dummy; 1825 char dummy;
1826 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1169 read (evpipe [0], &dummy, 1); 1827 read (evpipe [0], &dummy, 1);
1828 }
1829 }
1830
1831 pipe_write_skipped = 0;
1832
1833#if EV_SIGNAL_ENABLE
1834 if (sig_pending)
1170 } 1835 {
1836 sig_pending = 0;
1171 1837
1172 if (gotsig && ev_is_default_loop (EV_A)) 1838 for (i = EV_NSIG - 1; i--; )
1173 { 1839 if (expect_false (signals [i].pending))
1174 int signum;
1175 gotsig = 0;
1176
1177 for (signum = signalmax; signum--; )
1178 if (signals [signum].gotsig)
1179 ev_feed_signal_event (EV_A_ signum + 1); 1840 ev_feed_signal_event (EV_A_ i + 1);
1180 } 1841 }
1842#endif
1181 1843
1182#if EV_ASYNC_ENABLE 1844#if EV_ASYNC_ENABLE
1183 if (gotasync) 1845 if (async_pending)
1184 { 1846 {
1185 int i; 1847 async_pending = 0;
1186 gotasync = 0;
1187 1848
1188 for (i = asynccnt; i--; ) 1849 for (i = asynccnt; i--; )
1189 if (asyncs [i]->sent) 1850 if (asyncs [i]->sent)
1190 { 1851 {
1191 asyncs [i]->sent = 0; 1852 asyncs [i]->sent = 0;
… …
1195#endif 1856#endif
1196} 1857}
1197 1858
1198/*****************************************************************************/ 1859/*****************************************************************************/
1199 1860
1861void
1862ev_feed_signal (int signum)
1863{
1864#if EV_MULTIPLICITY
1865 EV_P = signals [signum - 1].loop;
1866
1867 if (!EV_A)
1868 return;
1869#endif
1870
1871 if (!ev_active (&pipe_w))
1872 return;
1873
1874 signals [signum - 1].pending = 1;
1875 evpipe_write (EV_A_ &sig_pending);
1876}
1877
1200static void 1878static void
1201ev_sighandler (int signum) 1879ev_sighandler (int signum)
1202{ 1880{
1203#if EV_MULTIPLICITY
1204 struct ev_loop *loop = &default_loop_struct;
1205#endif
1206
1207#if _WIN32 1881#ifdef _WIN32
1208 signal (signum, ev_sighandler); 1882 signal (signum, ev_sighandler);
1209#endif 1883#endif
1210 1884
1211 signals [signum - 1].gotsig = 1; 1885 ev_feed_signal (signum);
1212 evpipe_write (EV_A_ &gotsig);
1213} 1886}
1214 1887
1215void noinline 1888void noinline
1216ev_feed_signal_event (EV_P_ int signum) 1889ev_feed_signal_event (EV_P_ int signum)
1217{ 1890{
1218 WL w; 1891 WL w;
1219 1892
1893 if (expect_false (signum <= 0 || signum > EV_NSIG))
1894 return;
1895
1896 --signum;
1897
1220#if EV_MULTIPLICITY 1898#if EV_MULTIPLICITY
1221 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1899 /* it is permissible to try to feed a signal to the wrong loop */
1222#endif 1900 /* or, likely more useful, feeding a signal nobody is waiting for */
1223 1901
1224 --signum; 1902 if (expect_false (signals [signum].loop != EV_A))
1225
1226 if (signum < 0 || signum >= signalmax)
1227 return; 1903 return;
1904#endif
1228 1905
1229 signals [signum].gotsig = 0; 1906 signals [signum].pending = 0;
1230 1907
1231 for (w = signals [signum].head; w; w = w->next) 1908 for (w = signals [signum].head; w; w = w->next)
1232 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1909 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1233} 1910}
1234 1911
1912#if EV_USE_SIGNALFD
1913static void
1914sigfdcb (EV_P_ ev_io *iow, int revents)
1915{
1916 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1917
1918 for (;;)
1919 {
1920 ssize_t res = read (sigfd, si, sizeof (si));
1921
1922 /* not ISO-C, as res might be -1, but works with SuS */
1923 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1924 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1925
1926 if (res < (ssize_t)sizeof (si))
1927 break;
1928 }
1929}
1930#endif
1931
1932#endif
1933
1235/*****************************************************************************/ 1934/*****************************************************************************/
1236 1935
1936#if EV_CHILD_ENABLE
1237static WL childs [EV_PID_HASHSIZE]; 1937static WL childs [EV_PID_HASHSIZE];
1238
1239#ifndef _WIN32
1240 1938
1241static ev_signal childev; 1939static ev_signal childev;
1242 1940
1243#ifndef WIFCONTINUED 1941#ifndef WIFCONTINUED
1244# define WIFCONTINUED(status) 0 1942# define WIFCONTINUED(status) 0
… …
1249child_reap (EV_P_ int chain, int pid, int status) 1947child_reap (EV_P_ int chain, int pid, int status)
1250{ 1948{
1251 ev_child *w; 1949 ev_child *w;
1252 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1950 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1253 1951
1254 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1952 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1255 { 1953 {
1256 if ((w->pid == pid || !w->pid) 1954 if ((w->pid == pid || !w->pid)
1257 && (!traced || (w->flags & 1))) 1955 && (!traced || (w->flags & 1)))
1258 { 1956 {
1259 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1957 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1284 /* make sure we are called again until all children have been reaped */ 1982 /* make sure we are called again until all children have been reaped */
1285 /* we need to do it this way so that the callback gets called before we continue */ 1983 /* we need to do it this way so that the callback gets called before we continue */
1286 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1984 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1287 1985
1288 child_reap (EV_A_ pid, pid, status); 1986 child_reap (EV_A_ pid, pid, status);
1289 if (EV_PID_HASHSIZE > 1) 1987 if ((EV_PID_HASHSIZE) > 1)
1290 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1988 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1291} 1989}
1292 1990
1293#endif 1991#endif
1294 1992
1295/*****************************************************************************/ 1993/*****************************************************************************/
1296 1994
1995#if EV_USE_IOCP
1996# include "ev_iocp.c"
1997#endif
1297#if EV_USE_PORT 1998#if EV_USE_PORT
1298# include "ev_port.c" 1999# include "ev_port.c"
1299#endif 2000#endif
1300#if EV_USE_KQUEUE 2001#if EV_USE_KQUEUE
1301# include "ev_kqueue.c" 2002# include "ev_kqueue.c"
… …
1308#endif 2009#endif
1309#if EV_USE_SELECT 2010#if EV_USE_SELECT
1310# include "ev_select.c" 2011# include "ev_select.c"
1311#endif 2012#endif
1312 2013
1313int 2014int ecb_cold
1314ev_version_major (void) 2015ev_version_major (void)
1315{ 2016{
1316 return EV_VERSION_MAJOR; 2017 return EV_VERSION_MAJOR;
1317} 2018}
1318 2019
1319int 2020int ecb_cold
1320ev_version_minor (void) 2021ev_version_minor (void)
1321{ 2022{
1322 return EV_VERSION_MINOR; 2023 return EV_VERSION_MINOR;
1323} 2024}
1324 2025
1325/* return true if we are running with elevated privileges and should ignore env variables */ 2026/* return true if we are running with elevated privileges and should ignore env variables */
1326int inline_size 2027int inline_size ecb_cold
1327enable_secure (void) 2028enable_secure (void)
1328{ 2029{
1329#ifdef _WIN32 2030#ifdef _WIN32
1330 return 0; 2031 return 0;
1331#else 2032#else
1332 return getuid () != geteuid () 2033 return getuid () != geteuid ()
1333 || getgid () != getegid (); 2034 || getgid () != getegid ();
1334#endif 2035#endif
1335} 2036}
1336 2037
1337unsigned int 2038unsigned int ecb_cold
1338ev_supported_backends (void) 2039ev_supported_backends (void)
1339{ 2040{
1340 unsigned int flags = 0; 2041 unsigned int flags = 0;
1341 2042
1342 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2043 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1346 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2047 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1347 2048
1348 return flags; 2049 return flags;
1349} 2050}
1350 2051
1351unsigned int 2052unsigned int ecb_cold
1352ev_recommended_backends (void) 2053ev_recommended_backends (void)
1353{ 2054{
1354 unsigned int flags = ev_supported_backends (); 2055 unsigned int flags = ev_supported_backends ();
1355 2056
1356#ifndef __NetBSD__ 2057#ifndef __NetBSD__
… …
1361#ifdef __APPLE__ 2062#ifdef __APPLE__
1362 /* only select works correctly on that "unix-certified" platform */ 2063 /* only select works correctly on that "unix-certified" platform */
1363 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2064 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1364 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2065 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1365#endif 2066#endif
2067#ifdef __FreeBSD__
2068 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2069#endif
1366 2070
1367 return flags; 2071 return flags;
1368} 2072}
1369 2073
1370unsigned int 2074unsigned int ecb_cold
1371ev_embeddable_backends (void) 2075ev_embeddable_backends (void)
1372{ 2076{
1373 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2077 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1374 2078
1375 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2079 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1376 /* please fix it and tell me how to detect the fix */ 2080 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1377 flags &= ~EVBACKEND_EPOLL; 2081 flags &= ~EVBACKEND_EPOLL;
1378 2082
1379 return flags; 2083 return flags;
1380} 2084}
1381 2085
1382unsigned int 2086unsigned int
1383ev_backend (EV_P) 2087ev_backend (EV_P)
1384{ 2088{
1385 return backend; 2089 return backend;
1386} 2090}
1387 2091
1388#if EV_MINIMAL < 2 2092#if EV_FEATURE_API
1389unsigned int 2093unsigned int
1390ev_loop_count (EV_P) 2094ev_iteration (EV_P)
1391{ 2095{
1392 return loop_count; 2096 return loop_count;
1393} 2097}
1394 2098
1395unsigned int 2099unsigned int
1396ev_loop_depth (EV_P) 2100ev_depth (EV_P)
1397{ 2101{
1398 return loop_depth; 2102 return loop_depth;
1399} 2103}
1400 2104
1401void 2105void
… …
1420ev_userdata (EV_P) 2124ev_userdata (EV_P)
1421{ 2125{
1422 return userdata; 2126 return userdata;
1423} 2127}
1424 2128
2129void
1425void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2130ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1426{ 2131{
1427 invoke_cb = invoke_pending_cb; 2132 invoke_cb = invoke_pending_cb;
1428} 2133}
1429 2134
2135void
1430void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2136ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1431{ 2137{
1432 release_cb = release; 2138 release_cb = release;
1433 acquire_cb = acquire; 2139 acquire_cb = acquire;
1434} 2140}
1435#endif 2141#endif
1436 2142
1437/* initialise a loop structure, must be zero-initialised */ 2143/* initialise a loop structure, must be zero-initialised */
1438static void noinline 2144static void noinline ecb_cold
1439loop_init (EV_P_ unsigned int flags) 2145loop_init (EV_P_ unsigned int flags)
1440{ 2146{
1441 if (!backend) 2147 if (!backend)
1442 { 2148 {
2149 origflags = flags;
2150
1443#if EV_USE_REALTIME 2151#if EV_USE_REALTIME
1444 if (!have_realtime) 2152 if (!have_realtime)
1445 { 2153 {
1446 struct timespec ts; 2154 struct timespec ts;
1447 2155
… …
1458 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2166 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1459 have_monotonic = 1; 2167 have_monotonic = 1;
1460 } 2168 }
1461#endif 2169#endif
1462 2170
1463 ev_rt_now = ev_time ();
1464 mn_now = get_clock ();
1465 now_floor = mn_now;
1466 rtmn_diff = ev_rt_now - mn_now;
1467#if EV_MINIMAL < 2
1468 invoke_cb = ev_invoke_pending;
1469#endif
1470
1471 io_blocktime = 0.;
1472 timeout_blocktime = 0.;
1473 backend = 0;
1474 backend_fd = -1;
1475 gotasync = 0;
1476#if EV_USE_INOTIFY
1477 fs_fd = -2;
1478#endif
1479
1480 /* pid check not overridable via env */ 2171 /* pid check not overridable via env */
1481#ifndef _WIN32 2172#ifndef _WIN32
1482 if (flags & EVFLAG_FORKCHECK) 2173 if (flags & EVFLAG_FORKCHECK)
1483 curpid = getpid (); 2174 curpid = getpid ();
1484#endif 2175#endif
… …
1486 if (!(flags & EVFLAG_NOENV) 2177 if (!(flags & EVFLAG_NOENV)
1487 && !enable_secure () 2178 && !enable_secure ()
1488 && getenv ("LIBEV_FLAGS")) 2179 && getenv ("LIBEV_FLAGS"))
1489 flags = atoi (getenv ("LIBEV_FLAGS")); 2180 flags = atoi (getenv ("LIBEV_FLAGS"));
1490 2181
1491 if (!(flags & 0x0000ffffU)) 2182 ev_rt_now = ev_time ();
2183 mn_now = get_clock ();
2184 now_floor = mn_now;
2185 rtmn_diff = ev_rt_now - mn_now;
2186#if EV_FEATURE_API
2187 invoke_cb = ev_invoke_pending;
2188#endif
2189
2190 io_blocktime = 0.;
2191 timeout_blocktime = 0.;
2192 backend = 0;
2193 backend_fd = -1;
2194 sig_pending = 0;
2195#if EV_ASYNC_ENABLE
2196 async_pending = 0;
2197#endif
2198 pipe_write_skipped = 0;
2199 pipe_write_wanted = 0;
2200#if EV_USE_INOTIFY
2201 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2202#endif
2203#if EV_USE_SIGNALFD
2204 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2205#endif
2206
2207 if (!(flags & EVBACKEND_MASK))
1492 flags |= ev_recommended_backends (); 2208 flags |= ev_recommended_backends ();
1493 2209
2210#if EV_USE_IOCP
2211 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2212#endif
1494#if EV_USE_PORT 2213#if EV_USE_PORT
1495 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2214 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1496#endif 2215#endif
1497#if EV_USE_KQUEUE 2216#if EV_USE_KQUEUE
1498 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2217 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1507 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2226 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1508#endif 2227#endif
1509 2228
1510 ev_prepare_init (&pending_w, pendingcb); 2229 ev_prepare_init (&pending_w, pendingcb);
1511 2230
2231#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1512 ev_init (&pipe_w, pipecb); 2232 ev_init (&pipe_w, pipecb);
1513 ev_set_priority (&pipe_w, EV_MAXPRI); 2233 ev_set_priority (&pipe_w, EV_MAXPRI);
2234#endif
1514 } 2235 }
1515} 2236}
1516 2237
1517/* free up a loop structure */ 2238/* free up a loop structure */
1518static void noinline 2239void ecb_cold
1519loop_destroy (EV_P) 2240ev_loop_destroy (EV_P)
1520{ 2241{
1521 int i; 2242 int i;
1522 2243
2244#if EV_MULTIPLICITY
2245 /* mimic free (0) */
2246 if (!EV_A)
2247 return;
2248#endif
2249
2250#if EV_CLEANUP_ENABLE
2251 /* queue cleanup watchers (and execute them) */
2252 if (expect_false (cleanupcnt))
2253 {
2254 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2255 EV_INVOKE_PENDING;
2256 }
2257#endif
2258
2259#if EV_CHILD_ENABLE
2260 if (ev_is_active (&childev))
2261 {
2262 ev_ref (EV_A); /* child watcher */
2263 ev_signal_stop (EV_A_ &childev);
2264 }
2265#endif
2266
1523 if (ev_is_active (&pipe_w)) 2267 if (ev_is_active (&pipe_w))
1524 { 2268 {
1525 ev_ref (EV_A); /* signal watcher */ 2269 /*ev_ref (EV_A);*/
1526 ev_io_stop (EV_A_ &pipe_w); 2270 /*ev_io_stop (EV_A_ &pipe_w);*/
1527 2271
1528#if EV_USE_EVENTFD 2272#if EV_USE_EVENTFD
1529 if (evfd >= 0) 2273 if (evfd >= 0)
1530 close (evfd); 2274 close (evfd);
1531#endif 2275#endif
1532 2276
1533 if (evpipe [0] >= 0) 2277 if (evpipe [0] >= 0)
1534 { 2278 {
1535 close (evpipe [0]); 2279 EV_WIN32_CLOSE_FD (evpipe [0]);
1536 close (evpipe [1]); 2280 EV_WIN32_CLOSE_FD (evpipe [1]);
1537 } 2281 }
1538 } 2282 }
2283
2284#if EV_USE_SIGNALFD
2285 if (ev_is_active (&sigfd_w))
2286 close (sigfd);
2287#endif
1539 2288
1540#if EV_USE_INOTIFY 2289#if EV_USE_INOTIFY
1541 if (fs_fd >= 0) 2290 if (fs_fd >= 0)
1542 close (fs_fd); 2291 close (fs_fd);
1543#endif 2292#endif
1544 2293
1545 if (backend_fd >= 0) 2294 if (backend_fd >= 0)
1546 close (backend_fd); 2295 close (backend_fd);
1547 2296
2297#if EV_USE_IOCP
2298 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2299#endif
1548#if EV_USE_PORT 2300#if EV_USE_PORT
1549 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2301 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1550#endif 2302#endif
1551#if EV_USE_KQUEUE 2303#if EV_USE_KQUEUE
1552 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2304 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1567#if EV_IDLE_ENABLE 2319#if EV_IDLE_ENABLE
1568 array_free (idle, [i]); 2320 array_free (idle, [i]);
1569#endif 2321#endif
1570 } 2322 }
1571 2323
1572 ev_free (anfds); anfdmax = 0; 2324 ev_free (anfds); anfds = 0; anfdmax = 0;
1573 2325
1574 /* have to use the microsoft-never-gets-it-right macro */ 2326 /* have to use the microsoft-never-gets-it-right macro */
1575 array_free (rfeed, EMPTY); 2327 array_free (rfeed, EMPTY);
1576 array_free (fdchange, EMPTY); 2328 array_free (fdchange, EMPTY);
1577 array_free (timer, EMPTY); 2329 array_free (timer, EMPTY);
… …
1579 array_free (periodic, EMPTY); 2331 array_free (periodic, EMPTY);
1580#endif 2332#endif
1581#if EV_FORK_ENABLE 2333#if EV_FORK_ENABLE
1582 array_free (fork, EMPTY); 2334 array_free (fork, EMPTY);
1583#endif 2335#endif
2336#if EV_CLEANUP_ENABLE
2337 array_free (cleanup, EMPTY);
2338#endif
1584 array_free (prepare, EMPTY); 2339 array_free (prepare, EMPTY);
1585 array_free (check, EMPTY); 2340 array_free (check, EMPTY);
1586#if EV_ASYNC_ENABLE 2341#if EV_ASYNC_ENABLE
1587 array_free (async, EMPTY); 2342 array_free (async, EMPTY);
1588#endif 2343#endif
1589 2344
1590 backend = 0; 2345 backend = 0;
2346
2347#if EV_MULTIPLICITY
2348 if (ev_is_default_loop (EV_A))
2349#endif
2350 ev_default_loop_ptr = 0;
2351#if EV_MULTIPLICITY
2352 else
2353 ev_free (EV_A);
2354#endif
1591} 2355}
1592 2356
1593#if EV_USE_INOTIFY 2357#if EV_USE_INOTIFY
1594inline_size void infy_fork (EV_P); 2358inline_size void infy_fork (EV_P);
1595#endif 2359#endif
… …
1610 infy_fork (EV_A); 2374 infy_fork (EV_A);
1611#endif 2375#endif
1612 2376
1613 if (ev_is_active (&pipe_w)) 2377 if (ev_is_active (&pipe_w))
1614 { 2378 {
1615 /* this "locks" the handlers against writing to the pipe */ 2379 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1616 /* while we modify the fd vars */
1617 gotsig = 1;
1618#if EV_ASYNC_ENABLE
1619 gotasync = 1;
1620#endif
1621 2380
1622 ev_ref (EV_A); 2381 ev_ref (EV_A);
1623 ev_io_stop (EV_A_ &pipe_w); 2382 ev_io_stop (EV_A_ &pipe_w);
1624 2383
1625#if EV_USE_EVENTFD 2384#if EV_USE_EVENTFD
… …
1627 close (evfd); 2386 close (evfd);
1628#endif 2387#endif
1629 2388
1630 if (evpipe [0] >= 0) 2389 if (evpipe [0] >= 0)
1631 { 2390 {
1632 close (evpipe [0]); 2391 EV_WIN32_CLOSE_FD (evpipe [0]);
1633 close (evpipe [1]); 2392 EV_WIN32_CLOSE_FD (evpipe [1]);
1634 } 2393 }
1635 2394
2395#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1636 evpipe_init (EV_A); 2396 evpipe_init (EV_A);
1637 /* now iterate over everything, in case we missed something */ 2397 /* now iterate over everything, in case we missed something */
1638 pipecb (EV_A_ &pipe_w, EV_READ); 2398 pipecb (EV_A_ &pipe_w, EV_READ);
2399#endif
1639 } 2400 }
1640 2401
1641 postfork = 0; 2402 postfork = 0;
1642} 2403}
1643 2404
1644#if EV_MULTIPLICITY 2405#if EV_MULTIPLICITY
1645 2406
1646struct ev_loop * 2407struct ev_loop * ecb_cold
1647ev_loop_new (unsigned int flags) 2408ev_loop_new (unsigned int flags)
1648{ 2409{
1649 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2410 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1650 2411
1651 memset (loop, 0, sizeof (struct ev_loop)); 2412 memset (EV_A, 0, sizeof (struct ev_loop));
1652
1653 loop_init (EV_A_ flags); 2413 loop_init (EV_A_ flags);
1654 2414
1655 if (ev_backend (EV_A)) 2415 if (ev_backend (EV_A))
1656 return loop; 2416 return EV_A;
1657 2417
2418 ev_free (EV_A);
1658 return 0; 2419 return 0;
1659} 2420}
1660 2421
1661void
1662ev_loop_destroy (EV_P)
1663{
1664 loop_destroy (EV_A);
1665 ev_free (loop);
1666}
1667
1668void
1669ev_loop_fork (EV_P)
1670{
1671 postfork = 1; /* must be in line with ev_default_fork */
1672}
1673#endif /* multiplicity */ 2422#endif /* multiplicity */
1674 2423
1675#if EV_VERIFY 2424#if EV_VERIFY
1676static void noinline 2425static void noinline ecb_cold
1677verify_watcher (EV_P_ W w) 2426verify_watcher (EV_P_ W w)
1678{ 2427{
1679 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2428 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1680 2429
1681 if (w->pending) 2430 if (w->pending)
1682 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2431 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1683} 2432}
1684 2433
1685static void noinline 2434static void noinline ecb_cold
1686verify_heap (EV_P_ ANHE *heap, int N) 2435verify_heap (EV_P_ ANHE *heap, int N)
1687{ 2436{
1688 int i; 2437 int i;
1689 2438
1690 for (i = HEAP0; i < N + HEAP0; ++i) 2439 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1695 2444
1696 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2445 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1697 } 2446 }
1698} 2447}
1699 2448
1700static void noinline 2449static void noinline ecb_cold
1701array_verify (EV_P_ W *ws, int cnt) 2450array_verify (EV_P_ W *ws, int cnt)
1702{ 2451{
1703 while (cnt--) 2452 while (cnt--)
1704 { 2453 {
1705 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2454 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1706 verify_watcher (EV_A_ ws [cnt]); 2455 verify_watcher (EV_A_ ws [cnt]);
1707 } 2456 }
1708} 2457}
1709#endif 2458#endif
1710 2459
1711#if EV_MINIMAL < 2 2460#if EV_FEATURE_API
1712void 2461void ecb_cold
1713ev_loop_verify (EV_P) 2462ev_verify (EV_P)
1714{ 2463{
1715#if EV_VERIFY 2464#if EV_VERIFY
1716 int i; 2465 int i;
1717 WL w; 2466 WL w;
1718 2467
… …
1752#if EV_FORK_ENABLE 2501#if EV_FORK_ENABLE
1753 assert (forkmax >= forkcnt); 2502 assert (forkmax >= forkcnt);
1754 array_verify (EV_A_ (W *)forks, forkcnt); 2503 array_verify (EV_A_ (W *)forks, forkcnt);
1755#endif 2504#endif
1756 2505
2506#if EV_CLEANUP_ENABLE
2507 assert (cleanupmax >= cleanupcnt);
2508 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2509#endif
2510
1757#if EV_ASYNC_ENABLE 2511#if EV_ASYNC_ENABLE
1758 assert (asyncmax >= asynccnt); 2512 assert (asyncmax >= asynccnt);
1759 array_verify (EV_A_ (W *)asyncs, asynccnt); 2513 array_verify (EV_A_ (W *)asyncs, asynccnt);
1760#endif 2514#endif
1761 2515
2516#if EV_PREPARE_ENABLE
1762 assert (preparemax >= preparecnt); 2517 assert (preparemax >= preparecnt);
1763 array_verify (EV_A_ (W *)prepares, preparecnt); 2518 array_verify (EV_A_ (W *)prepares, preparecnt);
2519#endif
1764 2520
2521#if EV_CHECK_ENABLE
1765 assert (checkmax >= checkcnt); 2522 assert (checkmax >= checkcnt);
1766 array_verify (EV_A_ (W *)checks, checkcnt); 2523 array_verify (EV_A_ (W *)checks, checkcnt);
2524#endif
1767 2525
1768# if 0 2526# if 0
2527#if EV_CHILD_ENABLE
1769 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2528 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1770 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2529 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2530#endif
1771# endif 2531# endif
1772#endif 2532#endif
1773} 2533}
1774#endif 2534#endif
1775 2535
1776#if EV_MULTIPLICITY 2536#if EV_MULTIPLICITY
1777struct ev_loop * 2537struct ev_loop * ecb_cold
1778ev_default_loop_init (unsigned int flags)
1779#else 2538#else
1780int 2539int
2540#endif
1781ev_default_loop (unsigned int flags) 2541ev_default_loop (unsigned int flags)
1782#endif
1783{ 2542{
1784 if (!ev_default_loop_ptr) 2543 if (!ev_default_loop_ptr)
1785 { 2544 {
1786#if EV_MULTIPLICITY 2545#if EV_MULTIPLICITY
1787 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2546 EV_P = ev_default_loop_ptr = &default_loop_struct;
1788#else 2547#else
1789 ev_default_loop_ptr = 1; 2548 ev_default_loop_ptr = 1;
1790#endif 2549#endif
1791 2550
1792 loop_init (EV_A_ flags); 2551 loop_init (EV_A_ flags);
1793 2552
1794 if (ev_backend (EV_A)) 2553 if (ev_backend (EV_A))
1795 { 2554 {
1796#ifndef _WIN32 2555#if EV_CHILD_ENABLE
1797 ev_signal_init (&childev, childcb, SIGCHLD); 2556 ev_signal_init (&childev, childcb, SIGCHLD);
1798 ev_set_priority (&childev, EV_MAXPRI); 2557 ev_set_priority (&childev, EV_MAXPRI);
1799 ev_signal_start (EV_A_ &childev); 2558 ev_signal_start (EV_A_ &childev);
1800 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2559 ev_unref (EV_A); /* child watcher should not keep loop alive */
1801#endif 2560#endif
… …
1806 2565
1807 return ev_default_loop_ptr; 2566 return ev_default_loop_ptr;
1808} 2567}
1809 2568
1810void 2569void
1811ev_default_destroy (void) 2570ev_loop_fork (EV_P)
1812{ 2571{
1813#if EV_MULTIPLICITY
1814 struct ev_loop *loop = ev_default_loop_ptr;
1815#endif
1816
1817 ev_default_loop_ptr = 0;
1818
1819#ifndef _WIN32
1820 ev_ref (EV_A); /* child watcher */
1821 ev_signal_stop (EV_A_ &childev);
1822#endif
1823
1824 loop_destroy (EV_A);
1825}
1826
1827void
1828ev_default_fork (void)
1829{
1830#if EV_MULTIPLICITY
1831 struct ev_loop *loop = ev_default_loop_ptr;
1832#endif
1833
1834 postfork = 1; /* must be in line with ev_loop_fork */ 2572 postfork = 1; /* must be in line with ev_default_fork */
1835} 2573}
1836 2574
1837/*****************************************************************************/ 2575/*****************************************************************************/
1838 2576
1839void 2577void
… …
1861 2599
1862 for (pri = NUMPRI; pri--; ) 2600 for (pri = NUMPRI; pri--; )
1863 while (pendingcnt [pri]) 2601 while (pendingcnt [pri])
1864 { 2602 {
1865 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2603 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1866
1867 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1868 /* ^ this is no longer true, as pending_w could be here */
1869 2604
1870 p->w->pending = 0; 2605 p->w->pending = 0;
1871 EV_CB_INVOKE (p->w, p->events); 2606 EV_CB_INVOKE (p->w, p->events);
1872 EV_FREQUENT_CHECK; 2607 EV_FREQUENT_CHECK;
1873 } 2608 }
… …
1930 EV_FREQUENT_CHECK; 2665 EV_FREQUENT_CHECK;
1931 feed_reverse (EV_A_ (W)w); 2666 feed_reverse (EV_A_ (W)w);
1932 } 2667 }
1933 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2668 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1934 2669
1935 feed_reverse_done (EV_A_ EV_TIMEOUT); 2670 feed_reverse_done (EV_A_ EV_TIMER);
1936 } 2671 }
1937} 2672}
1938 2673
1939#if EV_PERIODIC_ENABLE 2674#if EV_PERIODIC_ENABLE
2675
2676static void noinline
2677periodic_recalc (EV_P_ ev_periodic *w)
2678{
2679 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2680 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2681
2682 /* the above almost always errs on the low side */
2683 while (at <= ev_rt_now)
2684 {
2685 ev_tstamp nat = at + w->interval;
2686
2687 /* when resolution fails us, we use ev_rt_now */
2688 if (expect_false (nat == at))
2689 {
2690 at = ev_rt_now;
2691 break;
2692 }
2693
2694 at = nat;
2695 }
2696
2697 ev_at (w) = at;
2698}
2699
1940/* make periodics pending */ 2700/* make periodics pending */
1941inline_size void 2701inline_size void
1942periodics_reify (EV_P) 2702periodics_reify (EV_P)
1943{ 2703{
1944 EV_FREQUENT_CHECK; 2704 EV_FREQUENT_CHECK;
… …
1963 ANHE_at_cache (periodics [HEAP0]); 2723 ANHE_at_cache (periodics [HEAP0]);
1964 downheap (periodics, periodiccnt, HEAP0); 2724 downheap (periodics, periodiccnt, HEAP0);
1965 } 2725 }
1966 else if (w->interval) 2726 else if (w->interval)
1967 { 2727 {
1968 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2728 periodic_recalc (EV_A_ w);
1969 /* if next trigger time is not sufficiently in the future, put it there */
1970 /* this might happen because of floating point inexactness */
1971 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1972 {
1973 ev_at (w) += w->interval;
1974
1975 /* if interval is unreasonably low we might still have a time in the past */
1976 /* so correct this. this will make the periodic very inexact, but the user */
1977 /* has effectively asked to get triggered more often than possible */
1978 if (ev_at (w) < ev_rt_now)
1979 ev_at (w) = ev_rt_now;
1980 }
1981
1982 ANHE_at_cache (periodics [HEAP0]); 2729 ANHE_at_cache (periodics [HEAP0]);
1983 downheap (periodics, periodiccnt, HEAP0); 2730 downheap (periodics, periodiccnt, HEAP0);
1984 } 2731 }
1985 else 2732 else
1986 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2733 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1993 feed_reverse_done (EV_A_ EV_PERIODIC); 2740 feed_reverse_done (EV_A_ EV_PERIODIC);
1994 } 2741 }
1995} 2742}
1996 2743
1997/* simply recalculate all periodics */ 2744/* simply recalculate all periodics */
1998/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2745/* TODO: maybe ensure that at least one event happens when jumping forward? */
1999static void noinline 2746static void noinline ecb_cold
2000periodics_reschedule (EV_P) 2747periodics_reschedule (EV_P)
2001{ 2748{
2002 int i; 2749 int i;
2003 2750
2004 /* adjust periodics after time jump */ 2751 /* adjust periodics after time jump */
… …
2007 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2754 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2008 2755
2009 if (w->reschedule_cb) 2756 if (w->reschedule_cb)
2010 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2757 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2011 else if (w->interval) 2758 else if (w->interval)
2012 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2759 periodic_recalc (EV_A_ w);
2013 2760
2014 ANHE_at_cache (periodics [i]); 2761 ANHE_at_cache (periodics [i]);
2015 } 2762 }
2016 2763
2017 reheap (periodics, periodiccnt); 2764 reheap (periodics, periodiccnt);
2018} 2765}
2019#endif 2766#endif
2020 2767
2021/* adjust all timers by a given offset */ 2768/* adjust all timers by a given offset */
2022static void noinline 2769static void noinline ecb_cold
2023timers_reschedule (EV_P_ ev_tstamp adjust) 2770timers_reschedule (EV_P_ ev_tstamp adjust)
2024{ 2771{
2025 int i; 2772 int i;
2026 2773
2027 for (i = 0; i < timercnt; ++i) 2774 for (i = 0; i < timercnt; ++i)
… …
2031 ANHE_at_cache (*he); 2778 ANHE_at_cache (*he);
2032 } 2779 }
2033} 2780}
2034 2781
2035/* fetch new monotonic and realtime times from the kernel */ 2782/* fetch new monotonic and realtime times from the kernel */
2036/* also detetc if there was a timejump, and act accordingly */ 2783/* also detect if there was a timejump, and act accordingly */
2037inline_speed void 2784inline_speed void
2038time_update (EV_P_ ev_tstamp max_block) 2785time_update (EV_P_ ev_tstamp max_block)
2039{ 2786{
2040#if EV_USE_MONOTONIC 2787#if EV_USE_MONOTONIC
2041 if (expect_true (have_monotonic)) 2788 if (expect_true (have_monotonic))
… …
2064 * doesn't hurt either as we only do this on time-jumps or 2811 * doesn't hurt either as we only do this on time-jumps or
2065 * in the unlikely event of having been preempted here. 2812 * in the unlikely event of having been preempted here.
2066 */ 2813 */
2067 for (i = 4; --i; ) 2814 for (i = 4; --i; )
2068 { 2815 {
2816 ev_tstamp diff;
2069 rtmn_diff = ev_rt_now - mn_now; 2817 rtmn_diff = ev_rt_now - mn_now;
2070 2818
2819 diff = odiff - rtmn_diff;
2820
2071 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2821 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2072 return; /* all is well */ 2822 return; /* all is well */
2073 2823
2074 ev_rt_now = ev_time (); 2824 ev_rt_now = ev_time ();
2075 mn_now = get_clock (); 2825 mn_now = get_clock ();
2076 now_floor = mn_now; 2826 now_floor = mn_now;
… …
2099 mn_now = ev_rt_now; 2849 mn_now = ev_rt_now;
2100 } 2850 }
2101} 2851}
2102 2852
2103void 2853void
2104ev_loop (EV_P_ int flags) 2854ev_run (EV_P_ int flags)
2105{ 2855{
2106#if EV_MINIMAL < 2 2856#if EV_FEATURE_API
2107 ++loop_depth; 2857 ++loop_depth;
2108#endif 2858#endif
2109 2859
2110 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2860 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2111 2861
2112 loop_done = EVUNLOOP_CANCEL; 2862 loop_done = EVBREAK_CANCEL;
2113 2863
2114 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2864 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2115 2865
2116 do 2866 do
2117 { 2867 {
2118#if EV_VERIFY >= 2 2868#if EV_VERIFY >= 2
2119 ev_loop_verify (EV_A); 2869 ev_verify (EV_A);
2120#endif 2870#endif
2121 2871
2122#ifndef _WIN32 2872#ifndef _WIN32
2123 if (expect_false (curpid)) /* penalise the forking check even more */ 2873 if (expect_false (curpid)) /* penalise the forking check even more */
2124 if (expect_false (getpid () != curpid)) 2874 if (expect_false (getpid () != curpid))
… …
2136 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2886 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2137 EV_INVOKE_PENDING; 2887 EV_INVOKE_PENDING;
2138 } 2888 }
2139#endif 2889#endif
2140 2890
2891#if EV_PREPARE_ENABLE
2141 /* queue prepare watchers (and execute them) */ 2892 /* queue prepare watchers (and execute them) */
2142 if (expect_false (preparecnt)) 2893 if (expect_false (preparecnt))
2143 { 2894 {
2144 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2895 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2145 EV_INVOKE_PENDING; 2896 EV_INVOKE_PENDING;
2146 } 2897 }
2898#endif
2147 2899
2148 if (expect_false (loop_done)) 2900 if (expect_false (loop_done))
2149 break; 2901 break;
2150 2902
2151 /* we might have forked, so reify kernel state if necessary */ 2903 /* we might have forked, so reify kernel state if necessary */
… …
2158 /* calculate blocking time */ 2910 /* calculate blocking time */
2159 { 2911 {
2160 ev_tstamp waittime = 0.; 2912 ev_tstamp waittime = 0.;
2161 ev_tstamp sleeptime = 0.; 2913 ev_tstamp sleeptime = 0.;
2162 2914
2915 /* remember old timestamp for io_blocktime calculation */
2916 ev_tstamp prev_mn_now = mn_now;
2917
2918 /* update time to cancel out callback processing overhead */
2919 time_update (EV_A_ 1e100);
2920
2921 /* from now on, we want a pipe-wake-up */
2922 pipe_write_wanted = 1;
2923
2924 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2925
2163 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2926 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2164 { 2927 {
2165 /* remember old timestamp for io_blocktime calculation */
2166 ev_tstamp prev_mn_now = mn_now;
2167
2168 /* update time to cancel out callback processing overhead */
2169 time_update (EV_A_ 1e100);
2170
2171 waittime = MAX_BLOCKTIME; 2928 waittime = MAX_BLOCKTIME;
2172 2929
2173 if (timercnt) 2930 if (timercnt)
2174 { 2931 {
2175 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2932 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2176 if (waittime > to) waittime = to; 2933 if (waittime > to) waittime = to;
2177 } 2934 }
2178 2935
2179#if EV_PERIODIC_ENABLE 2936#if EV_PERIODIC_ENABLE
2180 if (periodiccnt) 2937 if (periodiccnt)
2181 { 2938 {
2182 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2939 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2183 if (waittime > to) waittime = to; 2940 if (waittime > to) waittime = to;
2184 } 2941 }
2185#endif 2942#endif
2186 2943
2187 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2944 /* don't let timeouts decrease the waittime below timeout_blocktime */
2188 if (expect_false (waittime < timeout_blocktime)) 2945 if (expect_false (waittime < timeout_blocktime))
2189 waittime = timeout_blocktime; 2946 waittime = timeout_blocktime;
2947
2948 /* at this point, we NEED to wait, so we have to ensure */
2949 /* to pass a minimum nonzero value to the backend */
2950 if (expect_false (waittime < backend_mintime))
2951 waittime = backend_mintime;
2190 2952
2191 /* extra check because io_blocktime is commonly 0 */ 2953 /* extra check because io_blocktime is commonly 0 */
2192 if (expect_false (io_blocktime)) 2954 if (expect_false (io_blocktime))
2193 { 2955 {
2194 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2956 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2195 2957
2196 if (sleeptime > waittime - backend_fudge) 2958 if (sleeptime > waittime - backend_mintime)
2197 sleeptime = waittime - backend_fudge; 2959 sleeptime = waittime - backend_mintime;
2198 2960
2199 if (expect_true (sleeptime > 0.)) 2961 if (expect_true (sleeptime > 0.))
2200 { 2962 {
2201 ev_sleep (sleeptime); 2963 ev_sleep (sleeptime);
2202 waittime -= sleeptime; 2964 waittime -= sleeptime;
2203 } 2965 }
2204 } 2966 }
2205 } 2967 }
2206 2968
2207#if EV_MINIMAL < 2 2969#if EV_FEATURE_API
2208 ++loop_count; 2970 ++loop_count;
2209#endif 2971#endif
2210 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2972 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2211 backend_poll (EV_A_ waittime); 2973 backend_poll (EV_A_ waittime);
2212 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2974 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2975
2976 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2977
2978 if (pipe_write_skipped)
2979 {
2980 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2981 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2982 }
2983
2213 2984
2214 /* update ev_rt_now, do magic */ 2985 /* update ev_rt_now, do magic */
2215 time_update (EV_A_ waittime + sleeptime); 2986 time_update (EV_A_ waittime + sleeptime);
2216 } 2987 }
2217 2988
… …
2224#if EV_IDLE_ENABLE 2995#if EV_IDLE_ENABLE
2225 /* queue idle watchers unless other events are pending */ 2996 /* queue idle watchers unless other events are pending */
2226 idle_reify (EV_A); 2997 idle_reify (EV_A);
2227#endif 2998#endif
2228 2999
3000#if EV_CHECK_ENABLE
2229 /* queue check watchers, to be executed first */ 3001 /* queue check watchers, to be executed first */
2230 if (expect_false (checkcnt)) 3002 if (expect_false (checkcnt))
2231 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3003 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3004#endif
2232 3005
2233 EV_INVOKE_PENDING; 3006 EV_INVOKE_PENDING;
2234 } 3007 }
2235 while (expect_true ( 3008 while (expect_true (
2236 activecnt 3009 activecnt
2237 && !loop_done 3010 && !loop_done
2238 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3011 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2239 )); 3012 ));
2240 3013
2241 if (loop_done == EVUNLOOP_ONE) 3014 if (loop_done == EVBREAK_ONE)
2242 loop_done = EVUNLOOP_CANCEL; 3015 loop_done = EVBREAK_CANCEL;
2243 3016
2244#if EV_MINIMAL < 2 3017#if EV_FEATURE_API
2245 --loop_depth; 3018 --loop_depth;
2246#endif 3019#endif
2247} 3020}
2248 3021
2249void 3022void
2250ev_unloop (EV_P_ int how) 3023ev_break (EV_P_ int how)
2251{ 3024{
2252 loop_done = how; 3025 loop_done = how;
2253} 3026}
2254 3027
2255void 3028void
… …
2302inline_size void 3075inline_size void
2303wlist_del (WL *head, WL elem) 3076wlist_del (WL *head, WL elem)
2304{ 3077{
2305 while (*head) 3078 while (*head)
2306 { 3079 {
2307 if (*head == elem) 3080 if (expect_true (*head == elem))
2308 { 3081 {
2309 *head = elem->next; 3082 *head = elem->next;
2310 return; 3083 break;
2311 } 3084 }
2312 3085
2313 head = &(*head)->next; 3086 head = &(*head)->next;
2314 } 3087 }
2315} 3088}
… …
2375 3148
2376 if (expect_false (ev_is_active (w))) 3149 if (expect_false (ev_is_active (w)))
2377 return; 3150 return;
2378 3151
2379 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3152 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2380 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3153 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2381 3154
2382 EV_FREQUENT_CHECK; 3155 EV_FREQUENT_CHECK;
2383 3156
2384 ev_start (EV_A_ (W)w, 1); 3157 ev_start (EV_A_ (W)w, 1);
2385 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3158 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2403 EV_FREQUENT_CHECK; 3176 EV_FREQUENT_CHECK;
2404 3177
2405 wlist_del (&anfds[w->fd].head, (WL)w); 3178 wlist_del (&anfds[w->fd].head, (WL)w);
2406 ev_stop (EV_A_ (W)w); 3179 ev_stop (EV_A_ (W)w);
2407 3180
2408 fd_change (EV_A_ w->fd, 1); 3181 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2409 3182
2410 EV_FREQUENT_CHECK; 3183 EV_FREQUENT_CHECK;
2411} 3184}
2412 3185
2413void noinline 3186void noinline
… …
2455 timers [active] = timers [timercnt + HEAP0]; 3228 timers [active] = timers [timercnt + HEAP0];
2456 adjustheap (timers, timercnt, active); 3229 adjustheap (timers, timercnt, active);
2457 } 3230 }
2458 } 3231 }
2459 3232
2460 EV_FREQUENT_CHECK;
2461
2462 ev_at (w) -= mn_now; 3233 ev_at (w) -= mn_now;
2463 3234
2464 ev_stop (EV_A_ (W)w); 3235 ev_stop (EV_A_ (W)w);
3236
3237 EV_FREQUENT_CHECK;
2465} 3238}
2466 3239
2467void noinline 3240void noinline
2468ev_timer_again (EV_P_ ev_timer *w) 3241ev_timer_again (EV_P_ ev_timer *w)
2469{ 3242{
… …
2505 if (w->reschedule_cb) 3278 if (w->reschedule_cb)
2506 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3279 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2507 else if (w->interval) 3280 else if (w->interval)
2508 { 3281 {
2509 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3282 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2510 /* this formula differs from the one in periodic_reify because we do not always round up */ 3283 periodic_recalc (EV_A_ w);
2511 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2512 } 3284 }
2513 else 3285 else
2514 ev_at (w) = w->offset; 3286 ev_at (w) = w->offset;
2515 3287
2516 EV_FREQUENT_CHECK; 3288 EV_FREQUENT_CHECK;
… …
2548 periodics [active] = periodics [periodiccnt + HEAP0]; 3320 periodics [active] = periodics [periodiccnt + HEAP0];
2549 adjustheap (periodics, periodiccnt, active); 3321 adjustheap (periodics, periodiccnt, active);
2550 } 3322 }
2551 } 3323 }
2552 3324
2553 EV_FREQUENT_CHECK;
2554
2555 ev_stop (EV_A_ (W)w); 3325 ev_stop (EV_A_ (W)w);
3326
3327 EV_FREQUENT_CHECK;
2556} 3328}
2557 3329
2558void noinline 3330void noinline
2559ev_periodic_again (EV_P_ ev_periodic *w) 3331ev_periodic_again (EV_P_ ev_periodic *w)
2560{ 3332{
… …
2566 3338
2567#ifndef SA_RESTART 3339#ifndef SA_RESTART
2568# define SA_RESTART 0 3340# define SA_RESTART 0
2569#endif 3341#endif
2570 3342
3343#if EV_SIGNAL_ENABLE
3344
2571void noinline 3345void noinline
2572ev_signal_start (EV_P_ ev_signal *w) 3346ev_signal_start (EV_P_ ev_signal *w)
2573{ 3347{
2574#if EV_MULTIPLICITY
2575 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2576#endif
2577 if (expect_false (ev_is_active (w))) 3348 if (expect_false (ev_is_active (w)))
2578 return; 3349 return;
2579 3350
2580 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3351 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2581 3352
2582 evpipe_init (EV_A); 3353#if EV_MULTIPLICITY
3354 assert (("libev: a signal must not be attached to two different loops",
3355 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2583 3356
2584 EV_FREQUENT_CHECK; 3357 signals [w->signum - 1].loop = EV_A;
3358#endif
2585 3359
3360 EV_FREQUENT_CHECK;
3361
3362#if EV_USE_SIGNALFD
3363 if (sigfd == -2)
2586 { 3364 {
2587#ifndef _WIN32 3365 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2588 sigset_t full, prev; 3366 if (sigfd < 0 && errno == EINVAL)
2589 sigfillset (&full); 3367 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2590 sigprocmask (SIG_SETMASK, &full, &prev);
2591#endif
2592 3368
2593 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3369 if (sigfd >= 0)
3370 {
3371 fd_intern (sigfd); /* doing it twice will not hurt */
2594 3372
2595#ifndef _WIN32 3373 sigemptyset (&sigfd_set);
2596 sigprocmask (SIG_SETMASK, &prev, 0); 3374
2597#endif 3375 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3376 ev_set_priority (&sigfd_w, EV_MAXPRI);
3377 ev_io_start (EV_A_ &sigfd_w);
3378 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3379 }
2598 } 3380 }
3381
3382 if (sigfd >= 0)
3383 {
3384 /* TODO: check .head */
3385 sigaddset (&sigfd_set, w->signum);
3386 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3387
3388 signalfd (sigfd, &sigfd_set, 0);
3389 }
3390#endif
2599 3391
2600 ev_start (EV_A_ (W)w, 1); 3392 ev_start (EV_A_ (W)w, 1);
2601 wlist_add (&signals [w->signum - 1].head, (WL)w); 3393 wlist_add (&signals [w->signum - 1].head, (WL)w);
2602 3394
2603 if (!((WL)w)->next) 3395 if (!((WL)w)->next)
3396# if EV_USE_SIGNALFD
3397 if (sigfd < 0) /*TODO*/
3398# endif
2604 { 3399 {
2605#if _WIN32 3400# ifdef _WIN32
3401 evpipe_init (EV_A);
3402
2606 signal (w->signum, ev_sighandler); 3403 signal (w->signum, ev_sighandler);
2607#else 3404# else
2608 struct sigaction sa = { }; 3405 struct sigaction sa;
3406
3407 evpipe_init (EV_A);
3408
2609 sa.sa_handler = ev_sighandler; 3409 sa.sa_handler = ev_sighandler;
2610 sigfillset (&sa.sa_mask); 3410 sigfillset (&sa.sa_mask);
2611 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3411 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2612 sigaction (w->signum, &sa, 0); 3412 sigaction (w->signum, &sa, 0);
3413
3414 if (origflags & EVFLAG_NOSIGMASK)
3415 {
3416 sigemptyset (&sa.sa_mask);
3417 sigaddset (&sa.sa_mask, w->signum);
3418 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3419 }
2613#endif 3420#endif
2614 } 3421 }
2615 3422
2616 EV_FREQUENT_CHECK; 3423 EV_FREQUENT_CHECK;
2617} 3424}
2618 3425
2619void noinline 3426void noinline
… …
2627 3434
2628 wlist_del (&signals [w->signum - 1].head, (WL)w); 3435 wlist_del (&signals [w->signum - 1].head, (WL)w);
2629 ev_stop (EV_A_ (W)w); 3436 ev_stop (EV_A_ (W)w);
2630 3437
2631 if (!signals [w->signum - 1].head) 3438 if (!signals [w->signum - 1].head)
3439 {
3440#if EV_MULTIPLICITY
3441 signals [w->signum - 1].loop = 0; /* unattach from signal */
3442#endif
3443#if EV_USE_SIGNALFD
3444 if (sigfd >= 0)
3445 {
3446 sigset_t ss;
3447
3448 sigemptyset (&ss);
3449 sigaddset (&ss, w->signum);
3450 sigdelset (&sigfd_set, w->signum);
3451
3452 signalfd (sigfd, &sigfd_set, 0);
3453 sigprocmask (SIG_UNBLOCK, &ss, 0);
3454 }
3455 else
3456#endif
2632 signal (w->signum, SIG_DFL); 3457 signal (w->signum, SIG_DFL);
3458 }
2633 3459
2634 EV_FREQUENT_CHECK; 3460 EV_FREQUENT_CHECK;
2635} 3461}
3462
3463#endif
3464
3465#if EV_CHILD_ENABLE
2636 3466
2637void 3467void
2638ev_child_start (EV_P_ ev_child *w) 3468ev_child_start (EV_P_ ev_child *w)
2639{ 3469{
2640#if EV_MULTIPLICITY 3470#if EV_MULTIPLICITY
… …
2644 return; 3474 return;
2645 3475
2646 EV_FREQUENT_CHECK; 3476 EV_FREQUENT_CHECK;
2647 3477
2648 ev_start (EV_A_ (W)w, 1); 3478 ev_start (EV_A_ (W)w, 1);
2649 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3479 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2650 3480
2651 EV_FREQUENT_CHECK; 3481 EV_FREQUENT_CHECK;
2652} 3482}
2653 3483
2654void 3484void
… …
2658 if (expect_false (!ev_is_active (w))) 3488 if (expect_false (!ev_is_active (w)))
2659 return; 3489 return;
2660 3490
2661 EV_FREQUENT_CHECK; 3491 EV_FREQUENT_CHECK;
2662 3492
2663 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3493 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2664 ev_stop (EV_A_ (W)w); 3494 ev_stop (EV_A_ (W)w);
2665 3495
2666 EV_FREQUENT_CHECK; 3496 EV_FREQUENT_CHECK;
2667} 3497}
3498
3499#endif
2668 3500
2669#if EV_STAT_ENABLE 3501#if EV_STAT_ENABLE
2670 3502
2671# ifdef _WIN32 3503# ifdef _WIN32
2672# undef lstat 3504# undef lstat
… …
2678#define MIN_STAT_INTERVAL 0.1074891 3510#define MIN_STAT_INTERVAL 0.1074891
2679 3511
2680static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3512static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2681 3513
2682#if EV_USE_INOTIFY 3514#if EV_USE_INOTIFY
2683# define EV_INOTIFY_BUFSIZE 8192 3515
3516/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3517# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2684 3518
2685static void noinline 3519static void noinline
2686infy_add (EV_P_ ev_stat *w) 3520infy_add (EV_P_ ev_stat *w)
2687{ 3521{
2688 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3522 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2689 3523
2690 if (w->wd < 0) 3524 if (w->wd >= 0)
3525 {
3526 struct statfs sfs;
3527
3528 /* now local changes will be tracked by inotify, but remote changes won't */
3529 /* unless the filesystem is known to be local, we therefore still poll */
3530 /* also do poll on <2.6.25, but with normal frequency */
3531
3532 if (!fs_2625)
3533 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3534 else if (!statfs (w->path, &sfs)
3535 && (sfs.f_type == 0x1373 /* devfs */
3536 || sfs.f_type == 0xEF53 /* ext2/3 */
3537 || sfs.f_type == 0x3153464a /* jfs */
3538 || sfs.f_type == 0x52654973 /* reiser3 */
3539 || sfs.f_type == 0x01021994 /* tempfs */
3540 || sfs.f_type == 0x58465342 /* xfs */))
3541 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3542 else
3543 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2691 { 3544 }
3545 else
3546 {
3547 /* can't use inotify, continue to stat */
2692 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3548 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2693 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2694 3549
2695 /* monitor some parent directory for speedup hints */ 3550 /* if path is not there, monitor some parent directory for speedup hints */
2696 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3551 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2697 /* but an efficiency issue only */ 3552 /* but an efficiency issue only */
2698 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3553 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2699 { 3554 {
2700 char path [4096]; 3555 char path [4096];
… …
2710 if (!pend || pend == path) 3565 if (!pend || pend == path)
2711 break; 3566 break;
2712 3567
2713 *pend = 0; 3568 *pend = 0;
2714 w->wd = inotify_add_watch (fs_fd, path, mask); 3569 w->wd = inotify_add_watch (fs_fd, path, mask);
2715 } 3570 }
2716 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3571 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2717 } 3572 }
2718 } 3573 }
2719 3574
2720 if (w->wd >= 0) 3575 if (w->wd >= 0)
2721 {
2722 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3576 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2723 3577
2724 /* now local changes will be tracked by inotify, but remote changes won't */ 3578 /* now re-arm timer, if required */
2725 /* unless the filesystem it known to be local, we therefore still poll */ 3579 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2726 /* also do poll on <2.6.25, but with normal frequency */
2727 struct statfs sfs;
2728
2729 if (fs_2625 && !statfs (w->path, &sfs))
2730 if (sfs.f_type == 0x1373 /* devfs */
2731 || sfs.f_type == 0xEF53 /* ext2/3 */
2732 || sfs.f_type == 0x3153464a /* jfs */
2733 || sfs.f_type == 0x52654973 /* reiser3 */
2734 || sfs.f_type == 0x01021994 /* tempfs */
2735 || sfs.f_type == 0x58465342 /* xfs */)
2736 return;
2737
2738 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2739 ev_timer_again (EV_A_ &w->timer); 3580 ev_timer_again (EV_A_ &w->timer);
2740 } 3581 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2741} 3582}
2742 3583
2743static void noinline 3584static void noinline
2744infy_del (EV_P_ ev_stat *w) 3585infy_del (EV_P_ ev_stat *w)
2745{ 3586{
… …
2748 3589
2749 if (wd < 0) 3590 if (wd < 0)
2750 return; 3591 return;
2751 3592
2752 w->wd = -2; 3593 w->wd = -2;
2753 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3594 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2754 wlist_del (&fs_hash [slot].head, (WL)w); 3595 wlist_del (&fs_hash [slot].head, (WL)w);
2755 3596
2756 /* remove this watcher, if others are watching it, they will rearm */ 3597 /* remove this watcher, if others are watching it, they will rearm */
2757 inotify_rm_watch (fs_fd, wd); 3598 inotify_rm_watch (fs_fd, wd);
2758} 3599}
… …
2760static void noinline 3601static void noinline
2761infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3602infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2762{ 3603{
2763 if (slot < 0) 3604 if (slot < 0)
2764 /* overflow, need to check for all hash slots */ 3605 /* overflow, need to check for all hash slots */
2765 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3606 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2766 infy_wd (EV_A_ slot, wd, ev); 3607 infy_wd (EV_A_ slot, wd, ev);
2767 else 3608 else
2768 { 3609 {
2769 WL w_; 3610 WL w_;
2770 3611
2771 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3612 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2772 { 3613 {
2773 ev_stat *w = (ev_stat *)w_; 3614 ev_stat *w = (ev_stat *)w_;
2774 w_ = w_->next; /* lets us remove this watcher and all before it */ 3615 w_ = w_->next; /* lets us remove this watcher and all before it */
2775 3616
2776 if (w->wd == wd || wd == -1) 3617 if (w->wd == wd || wd == -1)
2777 { 3618 {
2778 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3619 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2779 { 3620 {
2780 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3621 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2781 w->wd = -1; 3622 w->wd = -1;
2782 infy_add (EV_A_ w); /* re-add, no matter what */ 3623 infy_add (EV_A_ w); /* re-add, no matter what */
2783 } 3624 }
2784 3625
2785 stat_timer_cb (EV_A_ &w->timer, 0); 3626 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2790 3631
2791static void 3632static void
2792infy_cb (EV_P_ ev_io *w, int revents) 3633infy_cb (EV_P_ ev_io *w, int revents)
2793{ 3634{
2794 char buf [EV_INOTIFY_BUFSIZE]; 3635 char buf [EV_INOTIFY_BUFSIZE];
2795 struct inotify_event *ev = (struct inotify_event *)buf;
2796 int ofs; 3636 int ofs;
2797 int len = read (fs_fd, buf, sizeof (buf)); 3637 int len = read (fs_fd, buf, sizeof (buf));
2798 3638
2799 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3639 for (ofs = 0; ofs < len; )
3640 {
3641 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2800 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3642 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3643 ofs += sizeof (struct inotify_event) + ev->len;
3644 }
2801} 3645}
2802 3646
2803inline_size void 3647inline_size void ecb_cold
2804check_2625 (EV_P) 3648ev_check_2625 (EV_P)
2805{ 3649{
2806 /* kernels < 2.6.25 are borked 3650 /* kernels < 2.6.25 are borked
2807 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3651 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2808 */ 3652 */
2809 struct utsname buf; 3653 if (ev_linux_version () < 0x020619)
2810 int major, minor, micro;
2811
2812 if (uname (&buf))
2813 return; 3654 return;
2814 3655
2815 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2816 return;
2817
2818 if (major < 2
2819 || (major == 2 && minor < 6)
2820 || (major == 2 && minor == 6 && micro < 25))
2821 return;
2822
2823 fs_2625 = 1; 3656 fs_2625 = 1;
3657}
3658
3659inline_size int
3660infy_newfd (void)
3661{
3662#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3663 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3664 if (fd >= 0)
3665 return fd;
3666#endif
3667 return inotify_init ();
2824} 3668}
2825 3669
2826inline_size void 3670inline_size void
2827infy_init (EV_P) 3671infy_init (EV_P)
2828{ 3672{
2829 if (fs_fd != -2) 3673 if (fs_fd != -2)
2830 return; 3674 return;
2831 3675
2832 fs_fd = -1; 3676 fs_fd = -1;
2833 3677
2834 check_2625 (EV_A); 3678 ev_check_2625 (EV_A);
2835 3679
2836 fs_fd = inotify_init (); 3680 fs_fd = infy_newfd ();
2837 3681
2838 if (fs_fd >= 0) 3682 if (fs_fd >= 0)
2839 { 3683 {
3684 fd_intern (fs_fd);
2840 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3685 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2841 ev_set_priority (&fs_w, EV_MAXPRI); 3686 ev_set_priority (&fs_w, EV_MAXPRI);
2842 ev_io_start (EV_A_ &fs_w); 3687 ev_io_start (EV_A_ &fs_w);
3688 ev_unref (EV_A);
2843 } 3689 }
2844} 3690}
2845 3691
2846inline_size void 3692inline_size void
2847infy_fork (EV_P) 3693infy_fork (EV_P)
… …
2849 int slot; 3695 int slot;
2850 3696
2851 if (fs_fd < 0) 3697 if (fs_fd < 0)
2852 return; 3698 return;
2853 3699
3700 ev_ref (EV_A);
3701 ev_io_stop (EV_A_ &fs_w);
2854 close (fs_fd); 3702 close (fs_fd);
2855 fs_fd = inotify_init (); 3703 fs_fd = infy_newfd ();
2856 3704
3705 if (fs_fd >= 0)
3706 {
3707 fd_intern (fs_fd);
3708 ev_io_set (&fs_w, fs_fd, EV_READ);
3709 ev_io_start (EV_A_ &fs_w);
3710 ev_unref (EV_A);
3711 }
3712
2857 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3713 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2858 { 3714 {
2859 WL w_ = fs_hash [slot].head; 3715 WL w_ = fs_hash [slot].head;
2860 fs_hash [slot].head = 0; 3716 fs_hash [slot].head = 0;
2861 3717
2862 while (w_) 3718 while (w_)
… …
2867 w->wd = -1; 3723 w->wd = -1;
2868 3724
2869 if (fs_fd >= 0) 3725 if (fs_fd >= 0)
2870 infy_add (EV_A_ w); /* re-add, no matter what */ 3726 infy_add (EV_A_ w); /* re-add, no matter what */
2871 else 3727 else
3728 {
3729 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3730 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2872 ev_timer_again (EV_A_ &w->timer); 3731 ev_timer_again (EV_A_ &w->timer);
3732 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3733 }
2873 } 3734 }
2874 } 3735 }
2875} 3736}
2876 3737
2877#endif 3738#endif
… …
2894static void noinline 3755static void noinline
2895stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3756stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2896{ 3757{
2897 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3758 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2898 3759
2899 /* we copy this here each the time so that */ 3760 ev_statdata prev = w->attr;
2900 /* prev has the old value when the callback gets invoked */
2901 w->prev = w->attr;
2902 ev_stat_stat (EV_A_ w); 3761 ev_stat_stat (EV_A_ w);
2903 3762
2904 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3763 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2905 if ( 3764 if (
2906 w->prev.st_dev != w->attr.st_dev 3765 prev.st_dev != w->attr.st_dev
2907 || w->prev.st_ino != w->attr.st_ino 3766 || prev.st_ino != w->attr.st_ino
2908 || w->prev.st_mode != w->attr.st_mode 3767 || prev.st_mode != w->attr.st_mode
2909 || w->prev.st_nlink != w->attr.st_nlink 3768 || prev.st_nlink != w->attr.st_nlink
2910 || w->prev.st_uid != w->attr.st_uid 3769 || prev.st_uid != w->attr.st_uid
2911 || w->prev.st_gid != w->attr.st_gid 3770 || prev.st_gid != w->attr.st_gid
2912 || w->prev.st_rdev != w->attr.st_rdev 3771 || prev.st_rdev != w->attr.st_rdev
2913 || w->prev.st_size != w->attr.st_size 3772 || prev.st_size != w->attr.st_size
2914 || w->prev.st_atime != w->attr.st_atime 3773 || prev.st_atime != w->attr.st_atime
2915 || w->prev.st_mtime != w->attr.st_mtime 3774 || prev.st_mtime != w->attr.st_mtime
2916 || w->prev.st_ctime != w->attr.st_ctime 3775 || prev.st_ctime != w->attr.st_ctime
2917 ) { 3776 ) {
3777 /* we only update w->prev on actual differences */
3778 /* in case we test more often than invoke the callback, */
3779 /* to ensure that prev is always different to attr */
3780 w->prev = prev;
3781
2918 #if EV_USE_INOTIFY 3782 #if EV_USE_INOTIFY
2919 if (fs_fd >= 0) 3783 if (fs_fd >= 0)
2920 { 3784 {
2921 infy_del (EV_A_ w); 3785 infy_del (EV_A_ w);
2922 infy_add (EV_A_ w); 3786 infy_add (EV_A_ w);
… …
2947 3811
2948 if (fs_fd >= 0) 3812 if (fs_fd >= 0)
2949 infy_add (EV_A_ w); 3813 infy_add (EV_A_ w);
2950 else 3814 else
2951#endif 3815#endif
3816 {
2952 ev_timer_again (EV_A_ &w->timer); 3817 ev_timer_again (EV_A_ &w->timer);
3818 ev_unref (EV_A);
3819 }
2953 3820
2954 ev_start (EV_A_ (W)w, 1); 3821 ev_start (EV_A_ (W)w, 1);
2955 3822
2956 EV_FREQUENT_CHECK; 3823 EV_FREQUENT_CHECK;
2957} 3824}
… …
2966 EV_FREQUENT_CHECK; 3833 EV_FREQUENT_CHECK;
2967 3834
2968#if EV_USE_INOTIFY 3835#if EV_USE_INOTIFY
2969 infy_del (EV_A_ w); 3836 infy_del (EV_A_ w);
2970#endif 3837#endif
3838
3839 if (ev_is_active (&w->timer))
3840 {
3841 ev_ref (EV_A);
2971 ev_timer_stop (EV_A_ &w->timer); 3842 ev_timer_stop (EV_A_ &w->timer);
3843 }
2972 3844
2973 ev_stop (EV_A_ (W)w); 3845 ev_stop (EV_A_ (W)w);
2974 3846
2975 EV_FREQUENT_CHECK; 3847 EV_FREQUENT_CHECK;
2976} 3848}
… …
3021 3893
3022 EV_FREQUENT_CHECK; 3894 EV_FREQUENT_CHECK;
3023} 3895}
3024#endif 3896#endif
3025 3897
3898#if EV_PREPARE_ENABLE
3026void 3899void
3027ev_prepare_start (EV_P_ ev_prepare *w) 3900ev_prepare_start (EV_P_ ev_prepare *w)
3028{ 3901{
3029 if (expect_false (ev_is_active (w))) 3902 if (expect_false (ev_is_active (w)))
3030 return; 3903 return;
… …
3056 3929
3057 ev_stop (EV_A_ (W)w); 3930 ev_stop (EV_A_ (W)w);
3058 3931
3059 EV_FREQUENT_CHECK; 3932 EV_FREQUENT_CHECK;
3060} 3933}
3934#endif
3061 3935
3936#if EV_CHECK_ENABLE
3062void 3937void
3063ev_check_start (EV_P_ ev_check *w) 3938ev_check_start (EV_P_ ev_check *w)
3064{ 3939{
3065 if (expect_false (ev_is_active (w))) 3940 if (expect_false (ev_is_active (w)))
3066 return; 3941 return;
… …
3092 3967
3093 ev_stop (EV_A_ (W)w); 3968 ev_stop (EV_A_ (W)w);
3094 3969
3095 EV_FREQUENT_CHECK; 3970 EV_FREQUENT_CHECK;
3096} 3971}
3972#endif
3097 3973
3098#if EV_EMBED_ENABLE 3974#if EV_EMBED_ENABLE
3099void noinline 3975void noinline
3100ev_embed_sweep (EV_P_ ev_embed *w) 3976ev_embed_sweep (EV_P_ ev_embed *w)
3101{ 3977{
3102 ev_loop (w->other, EVLOOP_NONBLOCK); 3978 ev_run (w->other, EVRUN_NOWAIT);
3103} 3979}
3104 3980
3105static void 3981static void
3106embed_io_cb (EV_P_ ev_io *io, int revents) 3982embed_io_cb (EV_P_ ev_io *io, int revents)
3107{ 3983{
3108 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3984 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3109 3985
3110 if (ev_cb (w)) 3986 if (ev_cb (w))
3111 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3987 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3112 else 3988 else
3113 ev_loop (w->other, EVLOOP_NONBLOCK); 3989 ev_run (w->other, EVRUN_NOWAIT);
3114} 3990}
3115 3991
3116static void 3992static void
3117embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3993embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3118{ 3994{
3119 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3995 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3120 3996
3121 { 3997 {
3122 struct ev_loop *loop = w->other; 3998 EV_P = w->other;
3123 3999
3124 while (fdchangecnt) 4000 while (fdchangecnt)
3125 { 4001 {
3126 fd_reify (EV_A); 4002 fd_reify (EV_A);
3127 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4003 ev_run (EV_A_ EVRUN_NOWAIT);
3128 } 4004 }
3129 } 4005 }
3130} 4006}
3131 4007
3132static void 4008static void
… …
3135 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4011 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3136 4012
3137 ev_embed_stop (EV_A_ w); 4013 ev_embed_stop (EV_A_ w);
3138 4014
3139 { 4015 {
3140 struct ev_loop *loop = w->other; 4016 EV_P = w->other;
3141 4017
3142 ev_loop_fork (EV_A); 4018 ev_loop_fork (EV_A);
3143 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4019 ev_run (EV_A_ EVRUN_NOWAIT);
3144 } 4020 }
3145 4021
3146 ev_embed_start (EV_A_ w); 4022 ev_embed_start (EV_A_ w);
3147} 4023}
3148 4024
… …
3159{ 4035{
3160 if (expect_false (ev_is_active (w))) 4036 if (expect_false (ev_is_active (w)))
3161 return; 4037 return;
3162 4038
3163 { 4039 {
3164 struct ev_loop *loop = w->other; 4040 EV_P = w->other;
3165 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4041 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3166 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4042 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3167 } 4043 }
3168 4044
3169 EV_FREQUENT_CHECK; 4045 EV_FREQUENT_CHECK;
… …
3196 4072
3197 ev_io_stop (EV_A_ &w->io); 4073 ev_io_stop (EV_A_ &w->io);
3198 ev_prepare_stop (EV_A_ &w->prepare); 4074 ev_prepare_stop (EV_A_ &w->prepare);
3199 ev_fork_stop (EV_A_ &w->fork); 4075 ev_fork_stop (EV_A_ &w->fork);
3200 4076
4077 ev_stop (EV_A_ (W)w);
4078
3201 EV_FREQUENT_CHECK; 4079 EV_FREQUENT_CHECK;
3202} 4080}
3203#endif 4081#endif
3204 4082
3205#if EV_FORK_ENABLE 4083#if EV_FORK_ENABLE
… …
3238 4116
3239 EV_FREQUENT_CHECK; 4117 EV_FREQUENT_CHECK;
3240} 4118}
3241#endif 4119#endif
3242 4120
4121#if EV_CLEANUP_ENABLE
4122void
4123ev_cleanup_start (EV_P_ ev_cleanup *w)
4124{
4125 if (expect_false (ev_is_active (w)))
4126 return;
4127
4128 EV_FREQUENT_CHECK;
4129
4130 ev_start (EV_A_ (W)w, ++cleanupcnt);
4131 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4132 cleanups [cleanupcnt - 1] = w;
4133
4134 /* cleanup watchers should never keep a refcount on the loop */
4135 ev_unref (EV_A);
4136 EV_FREQUENT_CHECK;
4137}
4138
4139void
4140ev_cleanup_stop (EV_P_ ev_cleanup *w)
4141{
4142 clear_pending (EV_A_ (W)w);
4143 if (expect_false (!ev_is_active (w)))
4144 return;
4145
4146 EV_FREQUENT_CHECK;
4147 ev_ref (EV_A);
4148
4149 {
4150 int active = ev_active (w);
4151
4152 cleanups [active - 1] = cleanups [--cleanupcnt];
4153 ev_active (cleanups [active - 1]) = active;
4154 }
4155
4156 ev_stop (EV_A_ (W)w);
4157
4158 EV_FREQUENT_CHECK;
4159}
4160#endif
4161
3243#if EV_ASYNC_ENABLE 4162#if EV_ASYNC_ENABLE
3244void 4163void
3245ev_async_start (EV_P_ ev_async *w) 4164ev_async_start (EV_P_ ev_async *w)
3246{ 4165{
3247 if (expect_false (ev_is_active (w))) 4166 if (expect_false (ev_is_active (w)))
3248 return; 4167 return;
3249 4168
4169 w->sent = 0;
4170
3250 evpipe_init (EV_A); 4171 evpipe_init (EV_A);
3251 4172
3252 EV_FREQUENT_CHECK; 4173 EV_FREQUENT_CHECK;
3253 4174
3254 ev_start (EV_A_ (W)w, ++asynccnt); 4175 ev_start (EV_A_ (W)w, ++asynccnt);
… …
3281 4202
3282void 4203void
3283ev_async_send (EV_P_ ev_async *w) 4204ev_async_send (EV_P_ ev_async *w)
3284{ 4205{
3285 w->sent = 1; 4206 w->sent = 1;
3286 evpipe_write (EV_A_ &gotasync); 4207 evpipe_write (EV_A_ &async_pending);
3287} 4208}
3288#endif 4209#endif
3289 4210
3290/*****************************************************************************/ 4211/*****************************************************************************/
3291 4212
… …
3331{ 4252{
3332 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4253 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3333 4254
3334 if (expect_false (!once)) 4255 if (expect_false (!once))
3335 { 4256 {
3336 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4257 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3337 return; 4258 return;
3338 } 4259 }
3339 4260
3340 once->cb = cb; 4261 once->cb = cb;
3341 once->arg = arg; 4262 once->arg = arg;
… …
3356} 4277}
3357 4278
3358/*****************************************************************************/ 4279/*****************************************************************************/
3359 4280
3360#if EV_WALK_ENABLE 4281#if EV_WALK_ENABLE
3361void 4282void ecb_cold
3362ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4283ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3363{ 4284{
3364 int i, j; 4285 int i, j;
3365 ev_watcher_list *wl, *wn; 4286 ev_watcher_list *wl, *wn;
3366 4287
… …
3410 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4331 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3411#endif 4332#endif
3412 4333
3413#if EV_IDLE_ENABLE 4334#if EV_IDLE_ENABLE
3414 if (types & EV_IDLE) 4335 if (types & EV_IDLE)
3415 for (j = NUMPRI; i--; ) 4336 for (j = NUMPRI; j--; )
3416 for (i = idlecnt [j]; i--; ) 4337 for (i = idlecnt [j]; i--; )
3417 cb (EV_A_ EV_IDLE, idles [j][i]); 4338 cb (EV_A_ EV_IDLE, idles [j][i]);
3418#endif 4339#endif
3419 4340
3420#if EV_FORK_ENABLE 4341#if EV_FORK_ENABLE
… …
3428 if (types & EV_ASYNC) 4349 if (types & EV_ASYNC)
3429 for (i = asynccnt; i--; ) 4350 for (i = asynccnt; i--; )
3430 cb (EV_A_ EV_ASYNC, asyncs [i]); 4351 cb (EV_A_ EV_ASYNC, asyncs [i]);
3431#endif 4352#endif
3432 4353
4354#if EV_PREPARE_ENABLE
3433 if (types & EV_PREPARE) 4355 if (types & EV_PREPARE)
3434 for (i = preparecnt; i--; ) 4356 for (i = preparecnt; i--; )
3435#if EV_EMBED_ENABLE 4357# if EV_EMBED_ENABLE
3436 if (ev_cb (prepares [i]) != embed_prepare_cb) 4358 if (ev_cb (prepares [i]) != embed_prepare_cb)
3437#endif 4359# endif
3438 cb (EV_A_ EV_PREPARE, prepares [i]); 4360 cb (EV_A_ EV_PREPARE, prepares [i]);
4361#endif
3439 4362
4363#if EV_CHECK_ENABLE
3440 if (types & EV_CHECK) 4364 if (types & EV_CHECK)
3441 for (i = checkcnt; i--; ) 4365 for (i = checkcnt; i--; )
3442 cb (EV_A_ EV_CHECK, checks [i]); 4366 cb (EV_A_ EV_CHECK, checks [i]);
4367#endif
3443 4368
4369#if EV_SIGNAL_ENABLE
3444 if (types & EV_SIGNAL) 4370 if (types & EV_SIGNAL)
3445 for (i = 0; i < signalmax; ++i) 4371 for (i = 0; i < EV_NSIG - 1; ++i)
3446 for (wl = signals [i].head; wl; ) 4372 for (wl = signals [i].head; wl; )
3447 { 4373 {
3448 wn = wl->next; 4374 wn = wl->next;
3449 cb (EV_A_ EV_SIGNAL, wl); 4375 cb (EV_A_ EV_SIGNAL, wl);
3450 wl = wn; 4376 wl = wn;
3451 } 4377 }
4378#endif
3452 4379
4380#if EV_CHILD_ENABLE
3453 if (types & EV_CHILD) 4381 if (types & EV_CHILD)
3454 for (i = EV_PID_HASHSIZE; i--; ) 4382 for (i = (EV_PID_HASHSIZE); i--; )
3455 for (wl = childs [i]; wl; ) 4383 for (wl = childs [i]; wl; )
3456 { 4384 {
3457 wn = wl->next; 4385 wn = wl->next;
3458 cb (EV_A_ EV_CHILD, wl); 4386 cb (EV_A_ EV_CHILD, wl);
3459 wl = wn; 4387 wl = wn;
3460 } 4388 }
4389#endif
3461/* EV_STAT 0x00001000 /* stat data changed */ 4390/* EV_STAT 0x00001000 /* stat data changed */
3462/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4391/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3463} 4392}
3464#endif 4393#endif
3465 4394
3466#if EV_MULTIPLICITY 4395#if EV_MULTIPLICITY
3467 #include "ev_wrap.h" 4396 #include "ev_wrap.h"
3468#endif 4397#endif
3469 4398
3470#ifdef __cplusplus 4399EV_CPP(})
3471}
3472#endif
3473 4400

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