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

Comparing libev/ev.c (file contents):
Revision 1.293 by root, Mon Jun 29 18:46:52 2009 UTC vs.
Revision 1.470 by root, Sun Sep 7 13:44:21 2014 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) 2007,2008,2009,2010,2011,2012,2013 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"
46# endif
47
48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
50# 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
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
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"
186#endif
187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
166#endif 197#endif
167 198
168#ifndef _WIN32 199#ifndef _WIN32
169# include <sys/time.h> 200# include <sys/time.h>
170# include <sys/wait.h> 201# include <sys/wait.h>
171# include <unistd.h> 202# include <unistd.h>
172#else 203#else
173# include <io.h> 204# include <io.h>
174# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
175# include <windows.h> 207# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
178# endif 210# endif
211# undef EV_AVOID_STDIO
179#endif 212#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
180 221
181/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
182 223
224/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG
226/* use what's provided */
227#elif defined NSIG
228# define EV_NSIG (NSIG)
229#elif defined _NSIG
230# define EV_NSIG (_NSIG)
231#elif defined SIGMAX
232# define EV_NSIG (SIGMAX+1)
233#elif defined SIG_MAX
234# define EV_NSIG (SIG_MAX+1)
235#elif defined _SIG_MAX
236# define EV_NSIG (_SIG_MAX+1)
237#elif defined MAXSIG
238# define EV_NSIG (MAXSIG+1)
239#elif defined MAX_SIG
240# define EV_NSIG (MAX_SIG+1)
241#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else
246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247#endif
248
249#ifndef EV_USE_FLOOR
250# define EV_USE_FLOOR 0
251#endif
252
183#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
185# define EV_USE_CLOCK_SYSCALL 1 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 256# else
187# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
188# endif 258# endif
189#endif 259#endif
190 260
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
267# endif
268#endif
269
191#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 272# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 273# else
195# define EV_USE_MONOTONIC 0 274# define EV_USE_MONOTONIC 0
196# endif 275# endif
197#endif 276#endif
198 277
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 279# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 280#endif
202 281
203#ifndef EV_USE_NANOSLEEP 282#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 283# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 284# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 285# else
207# define EV_USE_NANOSLEEP 0 286# define EV_USE_NANOSLEEP 0
208# endif 287# endif
209#endif 288#endif
210 289
211#ifndef EV_USE_SELECT 290#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 291# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 292#endif
214 293
215#ifndef EV_USE_POLL 294#ifndef EV_USE_POLL
216# ifdef _WIN32 295# ifdef _WIN32
217# define EV_USE_POLL 0 296# define EV_USE_POLL 0
218# else 297# else
219# define EV_USE_POLL 1 298# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 299# endif
221#endif 300#endif
222 301
223#ifndef EV_USE_EPOLL 302#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 304# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 305# else
227# define EV_USE_EPOLL 0 306# define EV_USE_EPOLL 0
228# endif 307# endif
229#endif 308#endif
230 309
… …
236# define EV_USE_PORT 0 315# define EV_USE_PORT 0
237#endif 316#endif
238 317
239#ifndef EV_USE_INOTIFY 318#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 320# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 321# else
243# define EV_USE_INOTIFY 0 322# define EV_USE_INOTIFY 0
244# endif 323# endif
245#endif 324#endif
246 325
247#ifndef EV_PID_HASHSIZE 326#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 327# 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 328#endif
254 329
255#ifndef EV_INOTIFY_HASHSIZE 330#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 331# 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 332#endif
262 333
263#ifndef EV_USE_EVENTFD 334#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 335# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 336# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 337# else
267# define EV_USE_EVENTFD 0 338# define EV_USE_EVENTFD 0
339# endif
340#endif
341
342#ifndef EV_USE_SIGNALFD
343# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
344# define EV_USE_SIGNALFD EV_FEATURE_OS
345# else
346# define EV_USE_SIGNALFD 0
268# endif 347# endif
269#endif 348#endif
270 349
271#if 0 /* debugging */ 350#if 0 /* debugging */
272# define EV_VERIFY 3 351# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 352# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 353# define EV_HEAP_CACHE_AT 1
275#endif 354#endif
276 355
277#ifndef EV_VERIFY 356#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 357# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 358#endif
280 359
281#ifndef EV_USE_4HEAP 360#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 361# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 362#endif
284 363
285#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif
367
368#ifdef ANDROID
369/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT
371# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL
374# define EV_USE_CLOCK_SYSCALL 0
375#endif
376
377/* aix's poll.h seems to cause lots of trouble */
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
287#endif 382#endif
288 383
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 384/* 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. */ 385/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
292# include <syscall.h> 387# include <sys/syscall.h>
293# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
294# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
295# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
296# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
297# else 392# else
… …
316# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
318#endif 413#endif
319 414
320#if !EV_USE_NANOSLEEP 415#if !EV_USE_NANOSLEEP
321# ifndef _WIN32 416/* hp-ux has it in sys/time.h, which we unconditionally include above */
417# if !defined _WIN32 && !defined __hpux
322# include <sys/select.h> 418# include <sys/select.h>
323# endif 419# endif
324#endif 420#endif
325 421
326#if EV_USE_INOTIFY 422#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 423# include <sys/statfs.h>
329# include <sys/inotify.h> 424# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 425/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
333# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
334# endif 429# endif
335#endif 430#endif
336 431
337#if EV_SELECT_IS_WINSOCKET
338# include <winsock.h>
339#endif
340
341#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 434# include <stdint.h>
344# ifdef __cplusplus 435# ifndef EFD_NONBLOCK
345extern "C" { 436# define EFD_NONBLOCK O_NONBLOCK
346# endif 437# endif
347int eventfd (unsigned int initval, int flags); 438# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 439# ifdef O_CLOEXEC
349} 440# define EFD_CLOEXEC O_CLOEXEC
441# else
442# define EFD_CLOEXEC 02000000
443# endif
350# endif 444# endif
445EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
446#endif
447
448#if EV_USE_SIGNALFD
449/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
450# include <stdint.h>
451# ifndef SFD_NONBLOCK
452# define SFD_NONBLOCK O_NONBLOCK
453# endif
454# ifndef SFD_CLOEXEC
455# ifdef O_CLOEXEC
456# define SFD_CLOEXEC O_CLOEXEC
457# else
458# define SFD_CLOEXEC 02000000
459# endif
460# endif
461EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
462
463struct signalfd_siginfo
464{
465 uint32_t ssi_signo;
466 char pad[128 - sizeof (uint32_t)];
467};
351#endif 468#endif
352 469
353/**/ 470/**/
354 471
355#if EV_VERIFY >= 3 472#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 473# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 474#else
358# define EV_FREQUENT_CHECK do { } while (0) 475# define EV_FREQUENT_CHECK do { } while (0)
359#endif 476#endif
360 477
361/* 478/*
362 * This is used to avoid floating point rounding problems. 479 * 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. 480 * This value is good at least till the year 4000.
367 * Better solutions welcome.
368 */ 481 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 482#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
483/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
370 484
371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 485#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) */ 486#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 */
374 487
488#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
489#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
490
491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
492/* ECB.H BEGIN */
493/*
494 * libecb - http://software.schmorp.de/pkg/libecb
495 *
496 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
497 * Copyright (©) 2011 Emanuele Giaquinta
498 * All rights reserved.
499 *
500 * Redistribution and use in source and binary forms, with or without modifica-
501 * tion, are permitted provided that the following conditions are met:
502 *
503 * 1. Redistributions of source code must retain the above copyright notice,
504 * this list of conditions and the following disclaimer.
505 *
506 * 2. Redistributions in binary form must reproduce the above copyright
507 * notice, this list of conditions and the following disclaimer in the
508 * documentation and/or other materials provided with the distribution.
509 *
510 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
511 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
512 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
513 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
514 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
515 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
518 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
519 * OF THE POSSIBILITY OF SUCH DAMAGE.
520 *
521 * Alternatively, the contents of this file may be used under the terms of
522 * the GNU General Public License ("GPL") version 2 or any later version,
523 * in which case the provisions of the GPL are applicable instead of
524 * the above. If you wish to allow the use of your version of this file
525 * only under the terms of the GPL and not to allow others to use your
526 * version of this file under the BSD license, indicate your decision
527 * by deleting the provisions above and replace them with the notice
528 * and other provisions required by the GPL. If you do not delete the
529 * provisions above, a recipient may use your version of this file under
530 * either the BSD or the GPL.
531 */
532
533#ifndef ECB_H
534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010003
538
539#ifdef _WIN32
540 typedef signed char int8_t;
541 typedef unsigned char uint8_t;
542 typedef signed short int16_t;
543 typedef unsigned short uint16_t;
544 typedef signed int int32_t;
545 typedef unsigned int uint32_t;
375#if __GNUC__ >= 4 546 #if __GNUC__
376# define expect(expr,value) __builtin_expect ((expr),(value)) 547 typedef signed long long int64_t;
377# define noinline __attribute__ ((noinline)) 548 typedef unsigned long long uint64_t;
549 #else /* _MSC_VER || __BORLANDC__ */
550 typedef signed __int64 int64_t;
551 typedef unsigned __int64 uint64_t;
552 #endif
553 #ifdef _WIN64
554 #define ECB_PTRSIZE 8
555 typedef uint64_t uintptr_t;
556 typedef int64_t intptr_t;
557 #else
558 #define ECB_PTRSIZE 4
559 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t;
561 #endif
378#else 562#else
379# define expect(expr,value) (expr) 563 #include <inttypes.h>
380# define noinline 564 #if UINTMAX_MAX > 0xffffffffU
381# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 565 #define ECB_PTRSIZE 8
382# define inline 566 #else
567 #define ECB_PTRSIZE 4
568 #endif
383# endif 569#endif
570
571/* work around x32 idiocy by defining proper macros */
572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
573 #if _ILP32
574 #define ECB_AMD64_X32 1
575 #else
576 #define ECB_AMD64 1
384#endif 577 #endif
578#endif
385 579
580/* many compilers define _GNUC_ to some versions but then only implement
581 * what their idiot authors think are the "more important" extensions,
582 * causing enormous grief in return for some better fake benchmark numbers.
583 * or so.
584 * we try to detect these and simply assume they are not gcc - if they have
585 * an issue with that they should have done it right in the first place.
586 */
587#ifndef ECB_GCC_VERSION
588 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
589 #define ECB_GCC_VERSION(major,minor) 0
590 #else
591 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
592 #endif
593#endif
594
595#define ECB_CPP (__cplusplus+0)
596#define ECB_CPP11 (__cplusplus >= 201103L)
597
598#if ECB_CPP
599 #define ECB_C 0
600 #define ECB_STDC_VERSION 0
601#else
602 #define ECB_C 1
603 #define ECB_STDC_VERSION __STDC_VERSION__
604#endif
605
606#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
607#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
608
609#if ECB_CPP
610 #define ECB_EXTERN_C extern "C"
611 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
612 #define ECB_EXTERN_C_END }
613#else
614 #define ECB_EXTERN_C extern
615 #define ECB_EXTERN_C_BEG
616 #define ECB_EXTERN_C_END
617#endif
618
619/*****************************************************************************/
620
621/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
622/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
623
624#if ECB_NO_THREADS
625 #define ECB_NO_SMP 1
626#endif
627
628#if ECB_NO_SMP
629 #define ECB_MEMORY_FENCE do { } while (0)
630#endif
631
632#ifndef ECB_MEMORY_FENCE
633 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #if __i386 || __i386__
635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
636 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
638 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
639 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
640 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
641 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
642 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
644 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
645 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
646 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
647 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
648 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
649 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
650 #elif __aarch64__
651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
652 #elif (__sparc || __sparc__) && !__sparcv8
653 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
654 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
655 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
656 #elif defined __s390__ || defined __s390x__
657 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
658 #elif defined __mips__
659 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
660 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
662 #elif defined __alpha__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
664 #elif defined __hppa__
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
667 #elif defined __ia64__
668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
669 #elif defined __m68k__
670 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
671 #elif defined __m88k__
672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
673 #elif defined __sh__
674 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
675 #endif
676 #endif
677#endif
678
679#ifndef ECB_MEMORY_FENCE
680 #if ECB_GCC_VERSION(4,7)
681 /* see comment below (stdatomic.h) about the C11 memory model. */
682 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
683 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
684 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
685
686 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
687 * without risking compile time errors with other compilers. We *could*
688 * define our own ecb_clang_has_feature, but I just can't be bothered to work
689 * around this shit time and again.
690 * #elif defined __clang && __has_feature (cxx_atomic)
691 * // see comment below (stdatomic.h) about the C11 memory model.
692 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
693 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
694 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
695 */
696
697 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
698 #define ECB_MEMORY_FENCE __sync_synchronize ()
699 #elif _MSC_VER >= 1500 /* VC++ 2008 */
700 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
701 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
702 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
703 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
704 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
705 #elif _MSC_VER >= 1400 /* VC++ 2005 */
706 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
707 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
708 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
709 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
710 #elif defined _WIN32
711 #include <WinNT.h>
712 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
713 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
714 #include <mbarrier.h>
715 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
716 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
717 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
718 #elif __xlC__
719 #define ECB_MEMORY_FENCE __sync ()
720 #endif
721#endif
722
723#ifndef ECB_MEMORY_FENCE
724 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
725 /* we assume that these memory fences work on all variables/all memory accesses, */
726 /* not just C11 atomics and atomic accesses */
727 #include <stdatomic.h>
728 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
729 /* any fence other than seq_cst, which isn't very efficient for us. */
730 /* Why that is, we don't know - either the C11 memory model is quite useless */
731 /* for most usages, or gcc and clang have a bug */
732 /* I *currently* lean towards the latter, and inefficiently implement */
733 /* all three of ecb's fences as a seq_cst fence */
734 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
735 /* for all __atomic_thread_fence's except seq_cst */
736 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
737 #endif
738#endif
739
740#ifndef ECB_MEMORY_FENCE
741 #if !ECB_AVOID_PTHREADS
742 /*
743 * if you get undefined symbol references to pthread_mutex_lock,
744 * or failure to find pthread.h, then you should implement
745 * the ECB_MEMORY_FENCE operations for your cpu/compiler
746 * OR provide pthread.h and link against the posix thread library
747 * of your system.
748 */
749 #include <pthread.h>
750 #define ECB_NEEDS_PTHREADS 1
751 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
752
753 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
754 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
755 #endif
756#endif
757
758#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
759 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
760#endif
761
762#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
763 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
764#endif
765
766/*****************************************************************************/
767
768#if __cplusplus
769 #define ecb_inline static inline
770#elif ECB_GCC_VERSION(2,5)
771 #define ecb_inline static __inline__
772#elif ECB_C99
773 #define ecb_inline static inline
774#else
775 #define ecb_inline static
776#endif
777
778#if ECB_GCC_VERSION(3,3)
779 #define ecb_restrict __restrict__
780#elif ECB_C99
781 #define ecb_restrict restrict
782#else
783 #define ecb_restrict
784#endif
785
786typedef int ecb_bool;
787
788#define ECB_CONCAT_(a, b) a ## b
789#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
790#define ECB_STRINGIFY_(a) # a
791#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
792
793#define ecb_function_ ecb_inline
794
795#if ECB_GCC_VERSION(3,1)
796 #define ecb_attribute(attrlist) __attribute__(attrlist)
797 #define ecb_is_constant(expr) __builtin_constant_p (expr)
798 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
799 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
800#else
801 #define ecb_attribute(attrlist)
802
803 /* possible C11 impl for integral types
804 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
805 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
806
807 #define ecb_is_constant(expr) 0
808 #define ecb_expect(expr,value) (expr)
809 #define ecb_prefetch(addr,rw,locality)
810#endif
811
812/* no emulation for ecb_decltype */
813#if ECB_GCC_VERSION(4,5)
814 #define ecb_decltype(x) __decltype(x)
815#elif ECB_GCC_VERSION(3,0)
816 #define ecb_decltype(x) __typeof(x)
817#endif
818
819#if _MSC_VER >= 1300
820 #define ecb_deprecated __declspec(deprecated)
821#else
822 #define ecb_deprecated ecb_attribute ((__deprecated__))
823#endif
824
825#define ecb_noinline ecb_attribute ((__noinline__))
826#define ecb_unused ecb_attribute ((__unused__))
827#define ecb_const ecb_attribute ((__const__))
828#define ecb_pure ecb_attribute ((__pure__))
829
830/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
831#if ECB_C11
832 #define ecb_noreturn _Noreturn
833#else
834 #define ecb_noreturn ecb_attribute ((__noreturn__))
835#endif
836
837#if ECB_GCC_VERSION(4,3)
838 #define ecb_artificial ecb_attribute ((__artificial__))
839 #define ecb_hot ecb_attribute ((__hot__))
840 #define ecb_cold ecb_attribute ((__cold__))
841#else
842 #define ecb_artificial
843 #define ecb_hot
844 #define ecb_cold
845#endif
846
847/* put around conditional expressions if you are very sure that the */
848/* expression is mostly true or mostly false. note that these return */
849/* booleans, not the expression. */
386#define expect_false(expr) expect ((expr) != 0, 0) 850#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 851#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
852/* for compatibility to the rest of the world */
853#define ecb_likely(expr) ecb_expect_true (expr)
854#define ecb_unlikely(expr) ecb_expect_false (expr)
855
856/* count trailing zero bits and count # of one bits */
857#if ECB_GCC_VERSION(3,4)
858 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
859 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
860 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
861 #define ecb_ctz32(x) __builtin_ctz (x)
862 #define ecb_ctz64(x) __builtin_ctzll (x)
863 #define ecb_popcount32(x) __builtin_popcount (x)
864 /* no popcountll */
865#else
866 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
867 ecb_function_ int
868 ecb_ctz32 (uint32_t x)
869 {
870 int r = 0;
871
872 x &= ~x + 1; /* this isolates the lowest bit */
873
874#if ECB_branchless_on_i386
875 r += !!(x & 0xaaaaaaaa) << 0;
876 r += !!(x & 0xcccccccc) << 1;
877 r += !!(x & 0xf0f0f0f0) << 2;
878 r += !!(x & 0xff00ff00) << 3;
879 r += !!(x & 0xffff0000) << 4;
880#else
881 if (x & 0xaaaaaaaa) r += 1;
882 if (x & 0xcccccccc) r += 2;
883 if (x & 0xf0f0f0f0) r += 4;
884 if (x & 0xff00ff00) r += 8;
885 if (x & 0xffff0000) r += 16;
886#endif
887
888 return r;
889 }
890
891 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
892 ecb_function_ int
893 ecb_ctz64 (uint64_t x)
894 {
895 int shift = x & 0xffffffffU ? 0 : 32;
896 return ecb_ctz32 (x >> shift) + shift;
897 }
898
899 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
900 ecb_function_ int
901 ecb_popcount32 (uint32_t x)
902 {
903 x -= (x >> 1) & 0x55555555;
904 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
905 x = ((x >> 4) + x) & 0x0f0f0f0f;
906 x *= 0x01010101;
907
908 return x >> 24;
909 }
910
911 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
912 ecb_function_ int ecb_ld32 (uint32_t x)
913 {
914 int r = 0;
915
916 if (x >> 16) { x >>= 16; r += 16; }
917 if (x >> 8) { x >>= 8; r += 8; }
918 if (x >> 4) { x >>= 4; r += 4; }
919 if (x >> 2) { x >>= 2; r += 2; }
920 if (x >> 1) { r += 1; }
921
922 return r;
923 }
924
925 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
926 ecb_function_ int ecb_ld64 (uint64_t x)
927 {
928 int r = 0;
929
930 if (x >> 32) { x >>= 32; r += 32; }
931
932 return r + ecb_ld32 (x);
933 }
934#endif
935
936ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
937ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
938ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
939ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
940
941ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
942ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
943{
944 return ( (x * 0x0802U & 0x22110U)
945 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
946}
947
948ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
949ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
950{
951 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
952 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
953 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
954 x = ( x >> 8 ) | ( x << 8);
955
956 return x;
957}
958
959ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
960ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
961{
962 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
963 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
964 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
965 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
966 x = ( x >> 16 ) | ( x << 16);
967
968 return x;
969}
970
971/* popcount64 is only available on 64 bit cpus as gcc builtin */
972/* so for this version we are lazy */
973ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
974ecb_function_ int
975ecb_popcount64 (uint64_t x)
976{
977 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
978}
979
980ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
981ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
982ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
983ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
984ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
985ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
986ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
987ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
988
989ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
990ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
991ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
992ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
993ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
994ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
995ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
996ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
997
998#if ECB_GCC_VERSION(4,3)
999 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1000 #define ecb_bswap32(x) __builtin_bswap32 (x)
1001 #define ecb_bswap64(x) __builtin_bswap64 (x)
1002#else
1003 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
1004 ecb_function_ uint16_t
1005 ecb_bswap16 (uint16_t x)
1006 {
1007 return ecb_rotl16 (x, 8);
1008 }
1009
1010 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
1011 ecb_function_ uint32_t
1012 ecb_bswap32 (uint32_t x)
1013 {
1014 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1015 }
1016
1017 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
1018 ecb_function_ uint64_t
1019 ecb_bswap64 (uint64_t x)
1020 {
1021 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1022 }
1023#endif
1024
1025#if ECB_GCC_VERSION(4,5)
1026 #define ecb_unreachable() __builtin_unreachable ()
1027#else
1028 /* this seems to work fine, but gcc always emits a warning for it :/ */
1029 ecb_inline void ecb_unreachable (void) ecb_noreturn;
1030 ecb_inline void ecb_unreachable (void) { }
1031#endif
1032
1033/* try to tell the compiler that some condition is definitely true */
1034#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1035
1036ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
1037ecb_inline unsigned char
1038ecb_byteorder_helper (void)
1039{
1040 /* the union code still generates code under pressure in gcc, */
1041 /* but less than using pointers, and always seems to */
1042 /* successfully return a constant. */
1043 /* the reason why we have this horrible preprocessor mess */
1044 /* is to avoid it in all cases, at least on common architectures */
1045 /* or when using a recent enough gcc version (>= 4.6) */
1046#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1047 return 0x44;
1048#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1049 return 0x44;
1050#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1051 return 0x11;
1052#else
1053 union
1054 {
1055 uint32_t i;
1056 uint8_t c;
1057 } u = { 0x11223344 };
1058 return u.c;
1059#endif
1060}
1061
1062ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
1063ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1064ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
1065ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1066
1067#if ECB_GCC_VERSION(3,0) || ECB_C99
1068 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1069#else
1070 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1071#endif
1072
1073#if __cplusplus
1074 template<typename T>
1075 static inline T ecb_div_rd (T val, T div)
1076 {
1077 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1078 }
1079 template<typename T>
1080 static inline T ecb_div_ru (T val, T div)
1081 {
1082 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1083 }
1084#else
1085 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1086 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1087#endif
1088
1089#if ecb_cplusplus_does_not_suck
1090 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1091 template<typename T, int N>
1092 static inline int ecb_array_length (const T (&arr)[N])
1093 {
1094 return N;
1095 }
1096#else
1097 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1098#endif
1099
1100/*******************************************************************************/
1101/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1102
1103/* basically, everything uses "ieee pure-endian" floating point numbers */
1104/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1105#if 0 \
1106 || __i386 || __i386__ \
1107 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1108 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1109 || defined __s390__ || defined __s390x__ \
1110 || defined __mips__ \
1111 || defined __alpha__ \
1112 || defined __hppa__ \
1113 || defined __ia64__ \
1114 || defined __m68k__ \
1115 || defined __m88k__ \
1116 || defined __sh__ \
1117 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1118 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1119 || defined __aarch64__
1120 #define ECB_STDFP 1
1121 #include <string.h> /* for memcpy */
1122#else
1123 #define ECB_STDFP 0
1124#endif
1125
1126#ifndef ECB_NO_LIBM
1127
1128 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1129
1130 /* only the oldest of old doesn't have this one. solaris. */
1131 #ifdef INFINITY
1132 #define ECB_INFINITY INFINITY
1133 #else
1134 #define ECB_INFINITY HUGE_VAL
1135 #endif
1136
1137 #ifdef NAN
1138 #define ECB_NAN NAN
1139 #else
1140 #define ECB_NAN ECB_INFINITY
1141 #endif
1142
1143 /* converts an ieee half/binary16 to a float */
1144 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1145 ecb_function_ float
1146 ecb_binary16_to_float (uint16_t x)
1147 {
1148 int e = (x >> 10) & 0x1f;
1149 int m = x & 0x3ff;
1150 float r;
1151
1152 if (!e ) r = ldexpf (m , -24);
1153 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1154 else if (m ) r = ECB_NAN;
1155 else r = ECB_INFINITY;
1156
1157 return x & 0x8000 ? -r : r;
1158 }
1159
1160 /* convert a float to ieee single/binary32 */
1161 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1162 ecb_function_ uint32_t
1163 ecb_float_to_binary32 (float x)
1164 {
1165 uint32_t r;
1166
1167 #if ECB_STDFP
1168 memcpy (&r, &x, 4);
1169 #else
1170 /* slow emulation, works for anything but -0 */
1171 uint32_t m;
1172 int e;
1173
1174 if (x == 0e0f ) return 0x00000000U;
1175 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1176 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1177 if (x != x ) return 0x7fbfffffU;
1178
1179 m = frexpf (x, &e) * 0x1000000U;
1180
1181 r = m & 0x80000000U;
1182
1183 if (r)
1184 m = -m;
1185
1186 if (e <= -126)
1187 {
1188 m &= 0xffffffU;
1189 m >>= (-125 - e);
1190 e = -126;
1191 }
1192
1193 r |= (e + 126) << 23;
1194 r |= m & 0x7fffffU;
1195 #endif
1196
1197 return r;
1198 }
1199
1200 /* converts an ieee single/binary32 to a float */
1201 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1202 ecb_function_ float
1203 ecb_binary32_to_float (uint32_t x)
1204 {
1205 float r;
1206
1207 #if ECB_STDFP
1208 memcpy (&r, &x, 4);
1209 #else
1210 /* emulation, only works for normals and subnormals and +0 */
1211 int neg = x >> 31;
1212 int e = (x >> 23) & 0xffU;
1213
1214 x &= 0x7fffffU;
1215
1216 if (e)
1217 x |= 0x800000U;
1218 else
1219 e = 1;
1220
1221 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1222 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1223
1224 r = neg ? -r : r;
1225 #endif
1226
1227 return r;
1228 }
1229
1230 /* convert a double to ieee double/binary64 */
1231 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1232 ecb_function_ uint64_t
1233 ecb_double_to_binary64 (double x)
1234 {
1235 uint64_t r;
1236
1237 #if ECB_STDFP
1238 memcpy (&r, &x, 8);
1239 #else
1240 /* slow emulation, works for anything but -0 */
1241 uint64_t m;
1242 int e;
1243
1244 if (x == 0e0 ) return 0x0000000000000000U;
1245 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1246 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1247 if (x != x ) return 0X7ff7ffffffffffffU;
1248
1249 m = frexp (x, &e) * 0x20000000000000U;
1250
1251 r = m & 0x8000000000000000;;
1252
1253 if (r)
1254 m = -m;
1255
1256 if (e <= -1022)
1257 {
1258 m &= 0x1fffffffffffffU;
1259 m >>= (-1021 - e);
1260 e = -1022;
1261 }
1262
1263 r |= ((uint64_t)(e + 1022)) << 52;
1264 r |= m & 0xfffffffffffffU;
1265 #endif
1266
1267 return r;
1268 }
1269
1270 /* converts an ieee double/binary64 to a double */
1271 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1272 ecb_function_ double
1273 ecb_binary64_to_double (uint64_t x)
1274 {
1275 double r;
1276
1277 #if ECB_STDFP
1278 memcpy (&r, &x, 8);
1279 #else
1280 /* emulation, only works for normals and subnormals and +0 */
1281 int neg = x >> 63;
1282 int e = (x >> 52) & 0x7ffU;
1283
1284 x &= 0xfffffffffffffU;
1285
1286 if (e)
1287 x |= 0x10000000000000U;
1288 else
1289 e = 1;
1290
1291 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1292 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1293
1294 r = neg ? -r : r;
1295 #endif
1296
1297 return r;
1298 }
1299
1300#endif
1301
1302#endif
1303
1304/* ECB.H END */
1305
1306#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1307/* if your architecture doesn't need memory fences, e.g. because it is
1308 * single-cpu/core, or if you use libev in a project that doesn't use libev
1309 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1310 * libev, in which cases the memory fences become nops.
1311 * alternatively, you can remove this #error and link against libpthread,
1312 * which will then provide the memory fences.
1313 */
1314# error "memory fences not defined for your architecture, please report"
1315#endif
1316
1317#ifndef ECB_MEMORY_FENCE
1318# define ECB_MEMORY_FENCE do { } while (0)
1319# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1320# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1321#endif
1322
1323#define expect_false(cond) ecb_expect_false (cond)
1324#define expect_true(cond) ecb_expect_true (cond)
1325#define noinline ecb_noinline
1326
388#define inline_size static inline 1327#define inline_size ecb_inline
389 1328
390#if EV_MINIMAL 1329#if EV_FEATURE_CODE
1330# define inline_speed ecb_inline
1331#else
391# define inline_speed static noinline 1332# define inline_speed static noinline
1333#endif
1334
1335#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1336
1337#if EV_MINPRI == EV_MAXPRI
1338# define ABSPRI(w) (((W)w), 0)
392#else 1339#else
393# define inline_speed static inline
394#endif
395
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1340# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1341#endif
398 1342
399#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1343#define EMPTY /* required for microsofts broken pseudo-c compiler */
400#define EMPTY2(a,b) /* used to suppress some warnings */ 1344#define EMPTY2(a,b) /* used to suppress some warnings */
401 1345
402typedef ev_watcher *W; 1346typedef ev_watcher *W;
… …
406#define ev_active(w) ((W)(w))->active 1350#define ev_active(w) ((W)(w))->active
407#define ev_at(w) ((WT)(w))->at 1351#define ev_at(w) ((WT)(w))->at
408 1352
409#if EV_USE_REALTIME 1353#if EV_USE_REALTIME
410/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1354/* sig_atomic_t is used to avoid per-thread variables or locking but still */
411/* giving it a reasonably high chance of working on typical architetcures */ 1355/* giving it a reasonably high chance of working on typical architectures */
412static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1356static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
413#endif 1357#endif
414 1358
415#if EV_USE_MONOTONIC 1359#if EV_USE_MONOTONIC
416static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1360static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
417#endif 1361#endif
418 1362
1363#ifndef EV_FD_TO_WIN32_HANDLE
1364# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
1365#endif
1366#ifndef EV_WIN32_HANDLE_TO_FD
1367# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
1368#endif
1369#ifndef EV_WIN32_CLOSE_FD
1370# define EV_WIN32_CLOSE_FD(fd) close (fd)
1371#endif
1372
419#ifdef _WIN32 1373#ifdef _WIN32
420# include "ev_win32.c" 1374# include "ev_win32.c"
421#endif 1375#endif
422 1376
423/*****************************************************************************/ 1377/*****************************************************************************/
424 1378
1379/* define a suitable floor function (only used by periodics atm) */
1380
1381#if EV_USE_FLOOR
1382# include <math.h>
1383# define ev_floor(v) floor (v)
1384#else
1385
1386#include <float.h>
1387
1388/* a floor() replacement function, should be independent of ev_tstamp type */
1389static ev_tstamp noinline
1390ev_floor (ev_tstamp v)
1391{
1392 /* the choice of shift factor is not terribly important */
1393#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1394 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1395#else
1396 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1397#endif
1398
1399 /* argument too large for an unsigned long? */
1400 if (expect_false (v >= shift))
1401 {
1402 ev_tstamp f;
1403
1404 if (v == v - 1.)
1405 return v; /* very large number */
1406
1407 f = shift * ev_floor (v * (1. / shift));
1408 return f + ev_floor (v - f);
1409 }
1410
1411 /* special treatment for negative args? */
1412 if (expect_false (v < 0.))
1413 {
1414 ev_tstamp f = -ev_floor (-v);
1415
1416 return f - (f == v ? 0 : 1);
1417 }
1418
1419 /* fits into an unsigned long */
1420 return (unsigned long)v;
1421}
1422
1423#endif
1424
1425/*****************************************************************************/
1426
1427#ifdef __linux
1428# include <sys/utsname.h>
1429#endif
1430
1431static unsigned int noinline ecb_cold
1432ev_linux_version (void)
1433{
1434#ifdef __linux
1435 unsigned int v = 0;
1436 struct utsname buf;
1437 int i;
1438 char *p = buf.release;
1439
1440 if (uname (&buf))
1441 return 0;
1442
1443 for (i = 3+1; --i; )
1444 {
1445 unsigned int c = 0;
1446
1447 for (;;)
1448 {
1449 if (*p >= '0' && *p <= '9')
1450 c = c * 10 + *p++ - '0';
1451 else
1452 {
1453 p += *p == '.';
1454 break;
1455 }
1456 }
1457
1458 v = (v << 8) | c;
1459 }
1460
1461 return v;
1462#else
1463 return 0;
1464#endif
1465}
1466
1467/*****************************************************************************/
1468
1469#if EV_AVOID_STDIO
1470static void noinline ecb_cold
1471ev_printerr (const char *msg)
1472{
1473 write (STDERR_FILENO, msg, strlen (msg));
1474}
1475#endif
1476
425static void (*syserr_cb)(const char *msg); 1477static void (*syserr_cb)(const char *msg) EV_THROW;
426 1478
427void 1479void ecb_cold
428ev_set_syserr_cb (void (*cb)(const char *msg)) 1480ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
429{ 1481{
430 syserr_cb = cb; 1482 syserr_cb = cb;
431} 1483}
432 1484
433static void noinline 1485static void noinline ecb_cold
434ev_syserr (const char *msg) 1486ev_syserr (const char *msg)
435{ 1487{
436 if (!msg) 1488 if (!msg)
437 msg = "(libev) system error"; 1489 msg = "(libev) system error";
438 1490
439 if (syserr_cb) 1491 if (syserr_cb)
440 syserr_cb (msg); 1492 syserr_cb (msg);
441 else 1493 else
442 { 1494 {
1495#if EV_AVOID_STDIO
1496 ev_printerr (msg);
1497 ev_printerr (": ");
1498 ev_printerr (strerror (errno));
1499 ev_printerr ("\n");
1500#else
443 perror (msg); 1501 perror (msg);
1502#endif
444 abort (); 1503 abort ();
445 } 1504 }
446} 1505}
447 1506
448static void * 1507static void *
449ev_realloc_emul (void *ptr, long size) 1508ev_realloc_emul (void *ptr, long size) EV_THROW
450{ 1509{
451 /* some systems, notably openbsd and darwin, fail to properly 1510 /* some systems, notably openbsd and darwin, fail to properly
452 * implement realloc (x, 0) (as required by both ansi c-98 and 1511 * implement realloc (x, 0) (as required by both ansi c-89 and
453 * the single unix specification, so work around them here. 1512 * the single unix specification, so work around them here.
1513 * recently, also (at least) fedora and debian started breaking it,
1514 * despite documenting it otherwise.
454 */ 1515 */
455 1516
456 if (size) 1517 if (size)
457 return realloc (ptr, size); 1518 return realloc (ptr, size);
458 1519
459 free (ptr); 1520 free (ptr);
460 return 0; 1521 return 0;
461} 1522}
462 1523
463static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1524static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
464 1525
465void 1526void ecb_cold
466ev_set_allocator (void *(*cb)(void *ptr, long size)) 1527ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
467{ 1528{
468 alloc = cb; 1529 alloc = cb;
469} 1530}
470 1531
471inline_speed void * 1532inline_speed void *
… …
473{ 1534{
474 ptr = alloc (ptr, size); 1535 ptr = alloc (ptr, size);
475 1536
476 if (!ptr && size) 1537 if (!ptr && size)
477 { 1538 {
1539#if EV_AVOID_STDIO
1540 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1541#else
478 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1542 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1543#endif
479 abort (); 1544 abort ();
480 } 1545 }
481 1546
482 return ptr; 1547 return ptr;
483} 1548}
… …
485#define ev_malloc(size) ev_realloc (0, (size)) 1550#define ev_malloc(size) ev_realloc (0, (size))
486#define ev_free(ptr) ev_realloc ((ptr), 0) 1551#define ev_free(ptr) ev_realloc ((ptr), 0)
487 1552
488/*****************************************************************************/ 1553/*****************************************************************************/
489 1554
1555/* set in reify when reification needed */
1556#define EV_ANFD_REIFY 1
1557
490/* file descriptor info structure */ 1558/* file descriptor info structure */
491typedef struct 1559typedef struct
492{ 1560{
493 WL head; 1561 WL head;
494 unsigned char events; /* the events watched for */ 1562 unsigned char events; /* the events watched for */
495 unsigned char reify; /* flag set when this ANFD needs reification */ 1563 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
496 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1564 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
497 unsigned char unused; 1565 unsigned char unused;
498#if EV_USE_EPOLL 1566#if EV_USE_EPOLL
499 unsigned int egen; /* generation counter to counter epoll bugs */ 1567 unsigned int egen; /* generation counter to counter epoll bugs */
500#endif 1568#endif
501#if EV_SELECT_IS_WINSOCKET 1569#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
502 SOCKET handle; 1570 SOCKET handle;
1571#endif
1572#if EV_USE_IOCP
1573 OVERLAPPED or, ow;
503#endif 1574#endif
504} ANFD; 1575} ANFD;
505 1576
506/* stores the pending event set for a given watcher */ 1577/* stores the pending event set for a given watcher */
507typedef struct 1578typedef struct
… …
549 #undef VAR 1620 #undef VAR
550 }; 1621 };
551 #include "ev_wrap.h" 1622 #include "ev_wrap.h"
552 1623
553 static struct ev_loop default_loop_struct; 1624 static struct ev_loop default_loop_struct;
554 struct ev_loop *ev_default_loop_ptr; 1625 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
555 1626
556#else 1627#else
557 1628
558 ev_tstamp ev_rt_now; 1629 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
559 #define VAR(name,decl) static decl; 1630 #define VAR(name,decl) static decl;
560 #include "ev_vars.h" 1631 #include "ev_vars.h"
561 #undef VAR 1632 #undef VAR
562 1633
563 static int ev_default_loop_ptr; 1634 static int ev_default_loop_ptr;
564 1635
565#endif 1636#endif
566 1637
1638#if EV_FEATURE_API
1639# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
1640# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
1641# define EV_INVOKE_PENDING invoke_cb (EV_A)
1642#else
1643# define EV_RELEASE_CB (void)0
1644# define EV_ACQUIRE_CB (void)0
1645# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
1646#endif
1647
1648#define EVBREAK_RECURSE 0x80
1649
567/*****************************************************************************/ 1650/*****************************************************************************/
568 1651
569#ifndef EV_HAVE_EV_TIME 1652#ifndef EV_HAVE_EV_TIME
570ev_tstamp 1653ev_tstamp
571ev_time (void) 1654ev_time (void) EV_THROW
572{ 1655{
573#if EV_USE_REALTIME 1656#if EV_USE_REALTIME
574 if (expect_true (have_realtime)) 1657 if (expect_true (have_realtime))
575 { 1658 {
576 struct timespec ts; 1659 struct timespec ts;
… …
600 return ev_time (); 1683 return ev_time ();
601} 1684}
602 1685
603#if EV_MULTIPLICITY 1686#if EV_MULTIPLICITY
604ev_tstamp 1687ev_tstamp
605ev_now (EV_P) 1688ev_now (EV_P) EV_THROW
606{ 1689{
607 return ev_rt_now; 1690 return ev_rt_now;
608} 1691}
609#endif 1692#endif
610 1693
611void 1694void
612ev_sleep (ev_tstamp delay) 1695ev_sleep (ev_tstamp delay) EV_THROW
613{ 1696{
614 if (delay > 0.) 1697 if (delay > 0.)
615 { 1698 {
616#if EV_USE_NANOSLEEP 1699#if EV_USE_NANOSLEEP
617 struct timespec ts; 1700 struct timespec ts;
618 1701
619 ts.tv_sec = (time_t)delay; 1702 EV_TS_SET (ts, delay);
620 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
621
622 nanosleep (&ts, 0); 1703 nanosleep (&ts, 0);
623#elif defined(_WIN32) 1704#elif defined _WIN32
624 Sleep ((unsigned long)(delay * 1e3)); 1705 Sleep ((unsigned long)(delay * 1e3));
625#else 1706#else
626 struct timeval tv; 1707 struct timeval tv;
627 1708
628 tv.tv_sec = (time_t)delay;
629 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
630
631 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1709 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
632 /* somehting not guaranteed by newer posix versions, but guaranteed */ 1710 /* something not guaranteed by newer posix versions, but guaranteed */
633 /* by older ones */ 1711 /* by older ones */
1712 EV_TV_SET (tv, delay);
634 select (0, 0, 0, 0, &tv); 1713 select (0, 0, 0, 0, &tv);
635#endif 1714#endif
636 } 1715 }
637} 1716}
638 1717
639/*****************************************************************************/ 1718/*****************************************************************************/
640 1719
641#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1720#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
642 1721
643/* find a suitable new size for the given array, */ 1722/* find a suitable new size for the given array, */
644/* hopefully by rounding to a ncie-to-malloc size */ 1723/* hopefully by rounding to a nice-to-malloc size */
645inline_size int 1724inline_size int
646array_nextsize (int elem, int cur, int cnt) 1725array_nextsize (int elem, int cur, int cnt)
647{ 1726{
648 int ncur = cur + 1; 1727 int ncur = cur + 1;
649 1728
650 do 1729 do
651 ncur <<= 1; 1730 ncur <<= 1;
652 while (cnt > ncur); 1731 while (cnt > ncur);
653 1732
654 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1733 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
655 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1734 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
656 { 1735 {
657 ncur *= elem; 1736 ncur *= elem;
658 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1737 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
659 ncur = ncur - sizeof (void *) * 4; 1738 ncur = ncur - sizeof (void *) * 4;
… …
661 } 1740 }
662 1741
663 return ncur; 1742 return ncur;
664} 1743}
665 1744
666static noinline void * 1745static void * noinline ecb_cold
667array_realloc (int elem, void *base, int *cur, int cnt) 1746array_realloc (int elem, void *base, int *cur, int cnt)
668{ 1747{
669 *cur = array_nextsize (elem, *cur, cnt); 1748 *cur = array_nextsize (elem, *cur, cnt);
670 return ev_realloc (base, elem * *cur); 1749 return ev_realloc (base, elem * *cur);
671} 1750}
… …
674 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1753 memset ((void *)(base), 0, sizeof (*(base)) * (count))
675 1754
676#define array_needsize(type,base,cur,cnt,init) \ 1755#define array_needsize(type,base,cur,cnt,init) \
677 if (expect_false ((cnt) > (cur))) \ 1756 if (expect_false ((cnt) > (cur))) \
678 { \ 1757 { \
679 int ocur_ = (cur); \ 1758 int ecb_unused ocur_ = (cur); \
680 (base) = (type *)array_realloc \ 1759 (base) = (type *)array_realloc \
681 (sizeof (type), (base), &(cur), (cnt)); \ 1760 (sizeof (type), (base), &(cur), (cnt)); \
682 init ((base) + (ocur_), (cur) - ocur_); \ 1761 init ((base) + (ocur_), (cur) - ocur_); \
683 } 1762 }
684 1763
… …
702pendingcb (EV_P_ ev_prepare *w, int revents) 1781pendingcb (EV_P_ ev_prepare *w, int revents)
703{ 1782{
704} 1783}
705 1784
706void noinline 1785void noinline
707ev_feed_event (EV_P_ void *w, int revents) 1786ev_feed_event (EV_P_ void *w, int revents) EV_THROW
708{ 1787{
709 W w_ = (W)w; 1788 W w_ = (W)w;
710 int pri = ABSPRI (w_); 1789 int pri = ABSPRI (w_);
711 1790
712 if (expect_false (w_->pending)) 1791 if (expect_false (w_->pending))
… …
716 w_->pending = ++pendingcnt [pri]; 1795 w_->pending = ++pendingcnt [pri];
717 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1796 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
718 pendings [pri][w_->pending - 1].w = w_; 1797 pendings [pri][w_->pending - 1].w = w_;
719 pendings [pri][w_->pending - 1].events = revents; 1798 pendings [pri][w_->pending - 1].events = revents;
720 } 1799 }
1800
1801 pendingpri = NUMPRI - 1;
721} 1802}
722 1803
723inline_speed void 1804inline_speed void
724feed_reverse (EV_P_ W w) 1805feed_reverse (EV_P_ W w)
725{ 1806{
… …
745} 1826}
746 1827
747/*****************************************************************************/ 1828/*****************************************************************************/
748 1829
749inline_speed void 1830inline_speed void
750fd_event (EV_P_ int fd, int revents) 1831fd_event_nocheck (EV_P_ int fd, int revents)
751{ 1832{
752 ANFD *anfd = anfds + fd; 1833 ANFD *anfd = anfds + fd;
753 ev_io *w; 1834 ev_io *w;
754 1835
755 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1836 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
759 if (ev) 1840 if (ev)
760 ev_feed_event (EV_A_ (W)w, ev); 1841 ev_feed_event (EV_A_ (W)w, ev);
761 } 1842 }
762} 1843}
763 1844
1845/* do not submit kernel events for fds that have reify set */
1846/* because that means they changed while we were polling for new events */
1847inline_speed void
1848fd_event (EV_P_ int fd, int revents)
1849{
1850 ANFD *anfd = anfds + fd;
1851
1852 if (expect_true (!anfd->reify))
1853 fd_event_nocheck (EV_A_ fd, revents);
1854}
1855
764void 1856void
765ev_feed_fd_event (EV_P_ int fd, int revents) 1857ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
766{ 1858{
767 if (fd >= 0 && fd < anfdmax) 1859 if (fd >= 0 && fd < anfdmax)
768 fd_event (EV_A_ fd, revents); 1860 fd_event_nocheck (EV_A_ fd, revents);
769} 1861}
770 1862
771/* make sure the external fd watch events are in-sync */ 1863/* make sure the external fd watch events are in-sync */
772/* with the kernel/libev internal state */ 1864/* with the kernel/libev internal state */
773inline_size void 1865inline_size void
774fd_reify (EV_P) 1866fd_reify (EV_P)
775{ 1867{
776 int i; 1868 int i;
777 1869
1870#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1871 for (i = 0; i < fdchangecnt; ++i)
1872 {
1873 int fd = fdchanges [i];
1874 ANFD *anfd = anfds + fd;
1875
1876 if (anfd->reify & EV__IOFDSET && anfd->head)
1877 {
1878 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1879
1880 if (handle != anfd->handle)
1881 {
1882 unsigned long arg;
1883
1884 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1885
1886 /* handle changed, but fd didn't - we need to do it in two steps */
1887 backend_modify (EV_A_ fd, anfd->events, 0);
1888 anfd->events = 0;
1889 anfd->handle = handle;
1890 }
1891 }
1892 }
1893#endif
1894
778 for (i = 0; i < fdchangecnt; ++i) 1895 for (i = 0; i < fdchangecnt; ++i)
779 { 1896 {
780 int fd = fdchanges [i]; 1897 int fd = fdchanges [i];
781 ANFD *anfd = anfds + fd; 1898 ANFD *anfd = anfds + fd;
782 ev_io *w; 1899 ev_io *w;
783 1900
784 unsigned char events = 0; 1901 unsigned char o_events = anfd->events;
1902 unsigned char o_reify = anfd->reify;
785 1903
786 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1904 anfd->reify = 0;
787 events |= (unsigned char)w->events;
788 1905
789#if EV_SELECT_IS_WINSOCKET 1906 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
790 if (events)
791 { 1907 {
792 unsigned long arg; 1908 anfd->events = 0;
793 #ifdef EV_FD_TO_WIN32_HANDLE 1909
794 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1910 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
795 #else 1911 anfd->events |= (unsigned char)w->events;
796 anfd->handle = _get_osfhandle (fd); 1912
797 #endif 1913 if (o_events != anfd->events)
798 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1914 o_reify = EV__IOFDSET; /* actually |= */
799 } 1915 }
800#endif
801 1916
802 { 1917 if (o_reify & EV__IOFDSET)
803 unsigned char o_events = anfd->events;
804 unsigned char o_reify = anfd->reify;
805
806 anfd->reify = 0;
807 anfd->events = events;
808
809 if (o_events != events || o_reify & EV__IOFDSET)
810 backend_modify (EV_A_ fd, o_events, events); 1918 backend_modify (EV_A_ fd, o_events, anfd->events);
811 }
812 } 1919 }
813 1920
814 fdchangecnt = 0; 1921 fdchangecnt = 0;
815} 1922}
816 1923
… …
828 fdchanges [fdchangecnt - 1] = fd; 1935 fdchanges [fdchangecnt - 1] = fd;
829 } 1936 }
830} 1937}
831 1938
832/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1939/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
833inline_speed void 1940inline_speed void ecb_cold
834fd_kill (EV_P_ int fd) 1941fd_kill (EV_P_ int fd)
835{ 1942{
836 ev_io *w; 1943 ev_io *w;
837 1944
838 while ((w = (ev_io *)anfds [fd].head)) 1945 while ((w = (ev_io *)anfds [fd].head))
… …
840 ev_io_stop (EV_A_ w); 1947 ev_io_stop (EV_A_ w);
841 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1948 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
842 } 1949 }
843} 1950}
844 1951
845/* check whether the given fd is atcually valid, for error recovery */ 1952/* check whether the given fd is actually valid, for error recovery */
846inline_size int 1953inline_size int ecb_cold
847fd_valid (int fd) 1954fd_valid (int fd)
848{ 1955{
849#ifdef _WIN32 1956#ifdef _WIN32
850 return _get_osfhandle (fd) != -1; 1957 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
851#else 1958#else
852 return fcntl (fd, F_GETFD) != -1; 1959 return fcntl (fd, F_GETFD) != -1;
853#endif 1960#endif
854} 1961}
855 1962
856/* called on EBADF to verify fds */ 1963/* called on EBADF to verify fds */
857static void noinline 1964static void noinline ecb_cold
858fd_ebadf (EV_P) 1965fd_ebadf (EV_P)
859{ 1966{
860 int fd; 1967 int fd;
861 1968
862 for (fd = 0; fd < anfdmax; ++fd) 1969 for (fd = 0; fd < anfdmax; ++fd)
… …
864 if (!fd_valid (fd) && errno == EBADF) 1971 if (!fd_valid (fd) && errno == EBADF)
865 fd_kill (EV_A_ fd); 1972 fd_kill (EV_A_ fd);
866} 1973}
867 1974
868/* called on ENOMEM in select/poll to kill some fds and retry */ 1975/* called on ENOMEM in select/poll to kill some fds and retry */
869static void noinline 1976static void noinline ecb_cold
870fd_enomem (EV_P) 1977fd_enomem (EV_P)
871{ 1978{
872 int fd; 1979 int fd;
873 1980
874 for (fd = anfdmax; fd--; ) 1981 for (fd = anfdmax; fd--; )
875 if (anfds [fd].events) 1982 if (anfds [fd].events)
876 { 1983 {
877 fd_kill (EV_A_ fd); 1984 fd_kill (EV_A_ fd);
878 return; 1985 break;
879 } 1986 }
880} 1987}
881 1988
882/* usually called after fork if backend needs to re-arm all fds from scratch */ 1989/* usually called after fork if backend needs to re-arm all fds from scratch */
883static void noinline 1990static void noinline
… …
888 for (fd = 0; fd < anfdmax; ++fd) 1995 for (fd = 0; fd < anfdmax; ++fd)
889 if (anfds [fd].events) 1996 if (anfds [fd].events)
890 { 1997 {
891 anfds [fd].events = 0; 1998 anfds [fd].events = 0;
892 anfds [fd].emask = 0; 1999 anfds [fd].emask = 0;
893 fd_change (EV_A_ fd, EV__IOFDSET | 1); 2000 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
894 } 2001 }
895} 2002}
896 2003
2004/* used to prepare libev internal fd's */
2005/* this is not fork-safe */
2006inline_speed void
2007fd_intern (int fd)
2008{
2009#ifdef _WIN32
2010 unsigned long arg = 1;
2011 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
2012#else
2013 fcntl (fd, F_SETFD, FD_CLOEXEC);
2014 fcntl (fd, F_SETFL, O_NONBLOCK);
2015#endif
2016}
2017
897/*****************************************************************************/ 2018/*****************************************************************************/
898 2019
899/* 2020/*
900 * the heap functions want a real array index. array index 0 uis guaranteed to not 2021 * the heap functions want a real array index. array index 0 is guaranteed to not
901 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 2022 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
902 * the branching factor of the d-tree. 2023 * the branching factor of the d-tree.
903 */ 2024 */
904 2025
905/* 2026/*
… …
973 2094
974 for (;;) 2095 for (;;)
975 { 2096 {
976 int c = k << 1; 2097 int c = k << 1;
977 2098
978 if (c > N + HEAP0 - 1) 2099 if (c >= N + HEAP0)
979 break; 2100 break;
980 2101
981 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 2102 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
982 ? 1 : 0; 2103 ? 1 : 0;
983 2104
… …
1019 2140
1020/* move an element suitably so it is in a correct place */ 2141/* move an element suitably so it is in a correct place */
1021inline_size void 2142inline_size void
1022adjustheap (ANHE *heap, int N, int k) 2143adjustheap (ANHE *heap, int N, int k)
1023{ 2144{
1024 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 2145 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1025 upheap (heap, k); 2146 upheap (heap, k);
1026 else 2147 else
1027 downheap (heap, N, k); 2148 downheap (heap, N, k);
1028} 2149}
1029 2150
… …
1042/*****************************************************************************/ 2163/*****************************************************************************/
1043 2164
1044/* associate signal watchers to a signal signal */ 2165/* associate signal watchers to a signal signal */
1045typedef struct 2166typedef struct
1046{ 2167{
2168 EV_ATOMIC_T pending;
2169#if EV_MULTIPLICITY
2170 EV_P;
2171#endif
1047 WL head; 2172 WL head;
1048 EV_ATOMIC_T gotsig;
1049} ANSIG; 2173} ANSIG;
1050 2174
1051static ANSIG *signals; 2175static ANSIG signals [EV_NSIG - 1];
1052static int signalmax;
1053
1054static EV_ATOMIC_T gotsig;
1055 2176
1056/*****************************************************************************/ 2177/*****************************************************************************/
1057 2178
1058/* used to prepare libev internal fd's */ 2179#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1059/* this is not fork-safe */ 2180
2181static void noinline ecb_cold
2182evpipe_init (EV_P)
2183{
2184 if (!ev_is_active (&pipe_w))
2185 {
2186 int fds [2];
2187
2188# if EV_USE_EVENTFD
2189 fds [0] = -1;
2190 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
2191 if (fds [1] < 0 && errno == EINVAL)
2192 fds [1] = eventfd (0, 0);
2193
2194 if (fds [1] < 0)
2195# endif
2196 {
2197 while (pipe (fds))
2198 ev_syserr ("(libev) error creating signal/async pipe");
2199
2200 fd_intern (fds [0]);
2201 }
2202
2203 evpipe [0] = fds [0];
2204
2205 if (evpipe [1] < 0)
2206 evpipe [1] = fds [1]; /* first call, set write fd */
2207 else
2208 {
2209 /* on subsequent calls, do not change evpipe [1] */
2210 /* so that evpipe_write can always rely on its value. */
2211 /* this branch does not do anything sensible on windows, */
2212 /* so must not be executed on windows */
2213
2214 dup2 (fds [1], evpipe [1]);
2215 close (fds [1]);
2216 }
2217
2218 fd_intern (evpipe [1]);
2219
2220 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2221 ev_io_start (EV_A_ &pipe_w);
2222 ev_unref (EV_A); /* watcher should not keep loop alive */
2223 }
2224}
2225
1060inline_speed void 2226inline_speed void
1061fd_intern (int fd) 2227evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1062{ 2228{
1063#ifdef _WIN32 2229 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1064 unsigned long arg = 1;
1065 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1066#else
1067 fcntl (fd, F_SETFD, FD_CLOEXEC);
1068 fcntl (fd, F_SETFL, O_NONBLOCK);
1069#endif
1070}
1071 2230
1072static void noinline 2231 if (expect_true (*flag))
1073evpipe_init (EV_P) 2232 return;
1074{ 2233
1075 if (!ev_is_active (&pipe_w)) 2234 *flag = 1;
2235 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2236
2237 pipe_write_skipped = 1;
2238
2239 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2240
2241 if (pipe_write_wanted)
1076 { 2242 {
2243 int old_errno;
2244
2245 pipe_write_skipped = 0;
2246 ECB_MEMORY_FENCE_RELEASE;
2247
2248 old_errno = errno; /* save errno because write will clobber it */
2249
1077#if EV_USE_EVENTFD 2250#if EV_USE_EVENTFD
1078 if ((evfd = eventfd (0, 0)) >= 0) 2251 if (evpipe [0] < 0)
1079 { 2252 {
1080 evpipe [0] = -1; 2253 uint64_t counter = 1;
1081 fd_intern (evfd); 2254 write (evpipe [1], &counter, sizeof (uint64_t));
1082 ev_io_set (&pipe_w, evfd, EV_READ);
1083 } 2255 }
1084 else 2256 else
1085#endif 2257#endif
1086 { 2258 {
1087 while (pipe (evpipe)) 2259#ifdef _WIN32
1088 ev_syserr ("(libev) error creating signal/async pipe"); 2260 WSABUF buf;
1089 2261 DWORD sent;
1090 fd_intern (evpipe [0]); 2262 buf.buf = &buf;
1091 fd_intern (evpipe [1]); 2263 buf.len = 1;
1092 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2264 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2265#else
2266 write (evpipe [1], &(evpipe [1]), 1);
2267#endif
1093 } 2268 }
1094
1095 ev_io_start (EV_A_ &pipe_w);
1096 ev_unref (EV_A); /* watcher should not keep loop alive */
1097 }
1098}
1099
1100inline_size void
1101evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1102{
1103 if (!*flag)
1104 {
1105 int old_errno = errno; /* save errno because write might clobber it */
1106
1107 *flag = 1;
1108
1109#if EV_USE_EVENTFD
1110 if (evfd >= 0)
1111 {
1112 uint64_t counter = 1;
1113 write (evfd, &counter, sizeof (uint64_t));
1114 }
1115 else
1116#endif
1117 write (evpipe [1], &old_errno, 1);
1118 2269
1119 errno = old_errno; 2270 errno = old_errno;
1120 } 2271 }
1121} 2272}
1122 2273
1123/* called whenever the libev signal pipe */ 2274/* called whenever the libev signal pipe */
1124/* got some events (signal, async) */ 2275/* got some events (signal, async) */
1125static void 2276static void
1126pipecb (EV_P_ ev_io *iow, int revents) 2277pipecb (EV_P_ ev_io *iow, int revents)
1127{ 2278{
2279 int i;
2280
2281 if (revents & EV_READ)
2282 {
1128#if EV_USE_EVENTFD 2283#if EV_USE_EVENTFD
1129 if (evfd >= 0) 2284 if (evpipe [0] < 0)
1130 { 2285 {
1131 uint64_t counter; 2286 uint64_t counter;
1132 read (evfd, &counter, sizeof (uint64_t)); 2287 read (evpipe [1], &counter, sizeof (uint64_t));
1133 } 2288 }
1134 else 2289 else
1135#endif 2290#endif
1136 { 2291 {
1137 char dummy; 2292 char dummy[4];
2293#ifdef _WIN32
2294 WSABUF buf;
2295 DWORD recvd;
2296 DWORD flags = 0;
2297 buf.buf = dummy;
2298 buf.len = sizeof (dummy);
2299 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2300#else
1138 read (evpipe [0], &dummy, 1); 2301 read (evpipe [0], &dummy, sizeof (dummy));
2302#endif
2303 }
2304 }
2305
2306 pipe_write_skipped = 0;
2307
2308 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2309
2310#if EV_SIGNAL_ENABLE
2311 if (sig_pending)
1139 } 2312 {
2313 sig_pending = 0;
1140 2314
1141 if (gotsig && ev_is_default_loop (EV_A)) 2315 ECB_MEMORY_FENCE;
1142 {
1143 int signum;
1144 gotsig = 0;
1145 2316
1146 for (signum = signalmax; signum--; ) 2317 for (i = EV_NSIG - 1; i--; )
1147 if (signals [signum].gotsig) 2318 if (expect_false (signals [i].pending))
1148 ev_feed_signal_event (EV_A_ signum + 1); 2319 ev_feed_signal_event (EV_A_ i + 1);
1149 } 2320 }
2321#endif
1150 2322
1151#if EV_ASYNC_ENABLE 2323#if EV_ASYNC_ENABLE
1152 if (gotasync) 2324 if (async_pending)
1153 { 2325 {
1154 int i; 2326 async_pending = 0;
1155 gotasync = 0; 2327
2328 ECB_MEMORY_FENCE;
1156 2329
1157 for (i = asynccnt; i--; ) 2330 for (i = asynccnt; i--; )
1158 if (asyncs [i]->sent) 2331 if (asyncs [i]->sent)
1159 { 2332 {
1160 asyncs [i]->sent = 0; 2333 asyncs [i]->sent = 0;
2334 ECB_MEMORY_FENCE_RELEASE;
1161 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2335 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1162 } 2336 }
1163 } 2337 }
1164#endif 2338#endif
1165} 2339}
1166 2340
1167/*****************************************************************************/ 2341/*****************************************************************************/
1168 2342
2343void
2344ev_feed_signal (int signum) EV_THROW
2345{
2346#if EV_MULTIPLICITY
2347 EV_P;
2348 ECB_MEMORY_FENCE_ACQUIRE;
2349 EV_A = signals [signum - 1].loop;
2350
2351 if (!EV_A)
2352 return;
2353#endif
2354
2355 signals [signum - 1].pending = 1;
2356 evpipe_write (EV_A_ &sig_pending);
2357}
2358
1169static void 2359static void
1170ev_sighandler (int signum) 2360ev_sighandler (int signum)
1171{ 2361{
2362#ifdef _WIN32
2363 signal (signum, ev_sighandler);
2364#endif
2365
2366 ev_feed_signal (signum);
2367}
2368
2369void noinline
2370ev_feed_signal_event (EV_P_ int signum) EV_THROW
2371{
2372 WL w;
2373
2374 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2375 return;
2376
2377 --signum;
2378
1172#if EV_MULTIPLICITY 2379#if EV_MULTIPLICITY
1173 struct ev_loop *loop = &default_loop_struct; 2380 /* it is permissible to try to feed a signal to the wrong loop */
1174#endif 2381 /* or, likely more useful, feeding a signal nobody is waiting for */
1175 2382
1176#if _WIN32 2383 if (expect_false (signals [signum].loop != EV_A))
1177 signal (signum, ev_sighandler);
1178#endif
1179
1180 signals [signum - 1].gotsig = 1;
1181 evpipe_write (EV_A_ &gotsig);
1182}
1183
1184void noinline
1185ev_feed_signal_event (EV_P_ int signum)
1186{
1187 WL w;
1188
1189#if EV_MULTIPLICITY
1190 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1191#endif
1192
1193 --signum;
1194
1195 if (signum < 0 || signum >= signalmax)
1196 return; 2384 return;
2385#endif
1197 2386
1198 signals [signum].gotsig = 0; 2387 signals [signum].pending = 0;
2388 ECB_MEMORY_FENCE_RELEASE;
1199 2389
1200 for (w = signals [signum].head; w; w = w->next) 2390 for (w = signals [signum].head; w; w = w->next)
1201 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2391 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1202} 2392}
1203 2393
2394#if EV_USE_SIGNALFD
2395static void
2396sigfdcb (EV_P_ ev_io *iow, int revents)
2397{
2398 struct signalfd_siginfo si[2], *sip; /* these structs are big */
2399
2400 for (;;)
2401 {
2402 ssize_t res = read (sigfd, si, sizeof (si));
2403
2404 /* not ISO-C, as res might be -1, but works with SuS */
2405 for (sip = si; (char *)sip < (char *)si + res; ++sip)
2406 ev_feed_signal_event (EV_A_ sip->ssi_signo);
2407
2408 if (res < (ssize_t)sizeof (si))
2409 break;
2410 }
2411}
2412#endif
2413
2414#endif
2415
1204/*****************************************************************************/ 2416/*****************************************************************************/
1205 2417
2418#if EV_CHILD_ENABLE
1206static WL childs [EV_PID_HASHSIZE]; 2419static WL childs [EV_PID_HASHSIZE];
1207
1208#ifndef _WIN32
1209 2420
1210static ev_signal childev; 2421static ev_signal childev;
1211 2422
1212#ifndef WIFCONTINUED 2423#ifndef WIFCONTINUED
1213# define WIFCONTINUED(status) 0 2424# define WIFCONTINUED(status) 0
… …
1218child_reap (EV_P_ int chain, int pid, int status) 2429child_reap (EV_P_ int chain, int pid, int status)
1219{ 2430{
1220 ev_child *w; 2431 ev_child *w;
1221 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2432 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1222 2433
1223 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2434 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1224 { 2435 {
1225 if ((w->pid == pid || !w->pid) 2436 if ((w->pid == pid || !w->pid)
1226 && (!traced || (w->flags & 1))) 2437 && (!traced || (w->flags & 1)))
1227 { 2438 {
1228 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2439 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1253 /* make sure we are called again until all children have been reaped */ 2464 /* make sure we are called again until all children have been reaped */
1254 /* we need to do it this way so that the callback gets called before we continue */ 2465 /* we need to do it this way so that the callback gets called before we continue */
1255 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2466 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1256 2467
1257 child_reap (EV_A_ pid, pid, status); 2468 child_reap (EV_A_ pid, pid, status);
1258 if (EV_PID_HASHSIZE > 1) 2469 if ((EV_PID_HASHSIZE) > 1)
1259 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2470 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1260} 2471}
1261 2472
1262#endif 2473#endif
1263 2474
1264/*****************************************************************************/ 2475/*****************************************************************************/
1265 2476
2477#if EV_USE_IOCP
2478# include "ev_iocp.c"
2479#endif
1266#if EV_USE_PORT 2480#if EV_USE_PORT
1267# include "ev_port.c" 2481# include "ev_port.c"
1268#endif 2482#endif
1269#if EV_USE_KQUEUE 2483#if EV_USE_KQUEUE
1270# include "ev_kqueue.c" 2484# include "ev_kqueue.c"
… …
1277#endif 2491#endif
1278#if EV_USE_SELECT 2492#if EV_USE_SELECT
1279# include "ev_select.c" 2493# include "ev_select.c"
1280#endif 2494#endif
1281 2495
1282int 2496int ecb_cold
1283ev_version_major (void) 2497ev_version_major (void) EV_THROW
1284{ 2498{
1285 return EV_VERSION_MAJOR; 2499 return EV_VERSION_MAJOR;
1286} 2500}
1287 2501
1288int 2502int ecb_cold
1289ev_version_minor (void) 2503ev_version_minor (void) EV_THROW
1290{ 2504{
1291 return EV_VERSION_MINOR; 2505 return EV_VERSION_MINOR;
1292} 2506}
1293 2507
1294/* return true if we are running with elevated privileges and should ignore env variables */ 2508/* return true if we are running with elevated privileges and should ignore env variables */
1295int inline_size 2509int inline_size ecb_cold
1296enable_secure (void) 2510enable_secure (void)
1297{ 2511{
1298#ifdef _WIN32 2512#ifdef _WIN32
1299 return 0; 2513 return 0;
1300#else 2514#else
1301 return getuid () != geteuid () 2515 return getuid () != geteuid ()
1302 || getgid () != getegid (); 2516 || getgid () != getegid ();
1303#endif 2517#endif
1304} 2518}
1305 2519
1306unsigned int 2520unsigned int ecb_cold
1307ev_supported_backends (void) 2521ev_supported_backends (void) EV_THROW
1308{ 2522{
1309 unsigned int flags = 0; 2523 unsigned int flags = 0;
1310 2524
1311 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2525 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1312 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2526 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1315 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2529 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1316 2530
1317 return flags; 2531 return flags;
1318} 2532}
1319 2533
1320unsigned int 2534unsigned int ecb_cold
1321ev_recommended_backends (void) 2535ev_recommended_backends (void) EV_THROW
1322{ 2536{
1323 unsigned int flags = ev_supported_backends (); 2537 unsigned int flags = ev_supported_backends ();
1324 2538
1325#ifndef __NetBSD__ 2539#ifndef __NetBSD__
1326 /* kqueue is borked on everything but netbsd apparently */ 2540 /* kqueue is borked on everything but netbsd apparently */
… …
1330#ifdef __APPLE__ 2544#ifdef __APPLE__
1331 /* only select works correctly on that "unix-certified" platform */ 2545 /* only select works correctly on that "unix-certified" platform */
1332 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2546 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1333 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2547 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1334#endif 2548#endif
2549#ifdef __FreeBSD__
2550 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2551#endif
1335 2552
1336 return flags; 2553 return flags;
1337} 2554}
1338 2555
2556unsigned int ecb_cold
2557ev_embeddable_backends (void) EV_THROW
2558{
2559 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2560
2561 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2562 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2563 flags &= ~EVBACKEND_EPOLL;
2564
2565 return flags;
2566}
2567
1339unsigned int 2568unsigned int
1340ev_embeddable_backends (void) 2569ev_backend (EV_P) EV_THROW
1341{ 2570{
1342 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2571 return backend;
1343
1344 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1345 /* please fix it and tell me how to detect the fix */
1346 flags &= ~EVBACKEND_EPOLL;
1347
1348 return flags;
1349} 2572}
1350 2573
2574#if EV_FEATURE_API
1351unsigned int 2575unsigned int
1352ev_backend (EV_P) 2576ev_iteration (EV_P) EV_THROW
1353{ 2577{
1354 return backend; 2578 return loop_count;
1355} 2579}
1356 2580
1357unsigned int 2581unsigned int
1358ev_loop_count (EV_P) 2582ev_depth (EV_P) EV_THROW
1359{ 2583{
1360 return loop_count; 2584 return loop_depth;
1361} 2585}
1362 2586
1363void 2587void
1364ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2588ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1365{ 2589{
1366 io_blocktime = interval; 2590 io_blocktime = interval;
1367} 2591}
1368 2592
1369void 2593void
1370ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2594ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1371{ 2595{
1372 timeout_blocktime = interval; 2596 timeout_blocktime = interval;
1373} 2597}
1374 2598
2599void
2600ev_set_userdata (EV_P_ void *data) EV_THROW
2601{
2602 userdata = data;
2603}
2604
2605void *
2606ev_userdata (EV_P) EV_THROW
2607{
2608 return userdata;
2609}
2610
2611void
2612ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2613{
2614 invoke_cb = invoke_pending_cb;
2615}
2616
2617void
2618ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
2619{
2620 release_cb = release;
2621 acquire_cb = acquire;
2622}
2623#endif
2624
1375/* initialise a loop structure, must be zero-initialised */ 2625/* initialise a loop structure, must be zero-initialised */
1376static void noinline 2626static void noinline ecb_cold
1377loop_init (EV_P_ unsigned int flags) 2627loop_init (EV_P_ unsigned int flags) EV_THROW
1378{ 2628{
1379 if (!backend) 2629 if (!backend)
1380 { 2630 {
2631 origflags = flags;
2632
1381#if EV_USE_REALTIME 2633#if EV_USE_REALTIME
1382 if (!have_realtime) 2634 if (!have_realtime)
1383 { 2635 {
1384 struct timespec ts; 2636 struct timespec ts;
1385 2637
… …
1396 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2648 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1397 have_monotonic = 1; 2649 have_monotonic = 1;
1398 } 2650 }
1399#endif 2651#endif
1400 2652
1401 ev_rt_now = ev_time ();
1402 mn_now = get_clock ();
1403 now_floor = mn_now;
1404 rtmn_diff = ev_rt_now - mn_now;
1405
1406 io_blocktime = 0.;
1407 timeout_blocktime = 0.;
1408 backend = 0;
1409 backend_fd = -1;
1410 gotasync = 0;
1411#if EV_USE_INOTIFY
1412 fs_fd = -2;
1413#endif
1414
1415 /* pid check not overridable via env */ 2653 /* pid check not overridable via env */
1416#ifndef _WIN32 2654#ifndef _WIN32
1417 if (flags & EVFLAG_FORKCHECK) 2655 if (flags & EVFLAG_FORKCHECK)
1418 curpid = getpid (); 2656 curpid = getpid ();
1419#endif 2657#endif
… …
1421 if (!(flags & EVFLAG_NOENV) 2659 if (!(flags & EVFLAG_NOENV)
1422 && !enable_secure () 2660 && !enable_secure ()
1423 && getenv ("LIBEV_FLAGS")) 2661 && getenv ("LIBEV_FLAGS"))
1424 flags = atoi (getenv ("LIBEV_FLAGS")); 2662 flags = atoi (getenv ("LIBEV_FLAGS"));
1425 2663
1426 if (!(flags & 0x0000ffffU)) 2664 ev_rt_now = ev_time ();
2665 mn_now = get_clock ();
2666 now_floor = mn_now;
2667 rtmn_diff = ev_rt_now - mn_now;
2668#if EV_FEATURE_API
2669 invoke_cb = ev_invoke_pending;
2670#endif
2671
2672 io_blocktime = 0.;
2673 timeout_blocktime = 0.;
2674 backend = 0;
2675 backend_fd = -1;
2676 sig_pending = 0;
2677#if EV_ASYNC_ENABLE
2678 async_pending = 0;
2679#endif
2680 pipe_write_skipped = 0;
2681 pipe_write_wanted = 0;
2682 evpipe [0] = -1;
2683 evpipe [1] = -1;
2684#if EV_USE_INOTIFY
2685 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2686#endif
2687#if EV_USE_SIGNALFD
2688 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2689#endif
2690
2691 if (!(flags & EVBACKEND_MASK))
1427 flags |= ev_recommended_backends (); 2692 flags |= ev_recommended_backends ();
1428 2693
2694#if EV_USE_IOCP
2695 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2696#endif
1429#if EV_USE_PORT 2697#if EV_USE_PORT
1430 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2698 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1431#endif 2699#endif
1432#if EV_USE_KQUEUE 2700#if EV_USE_KQUEUE
1433 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2701 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1442 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2710 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1443#endif 2711#endif
1444 2712
1445 ev_prepare_init (&pending_w, pendingcb); 2713 ev_prepare_init (&pending_w, pendingcb);
1446 2714
2715#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1447 ev_init (&pipe_w, pipecb); 2716 ev_init (&pipe_w, pipecb);
1448 ev_set_priority (&pipe_w, EV_MAXPRI); 2717 ev_set_priority (&pipe_w, EV_MAXPRI);
2718#endif
1449 } 2719 }
1450} 2720}
1451 2721
1452/* free up a loop structure */ 2722/* free up a loop structure */
1453static void noinline 2723void ecb_cold
1454loop_destroy (EV_P) 2724ev_loop_destroy (EV_P)
1455{ 2725{
1456 int i; 2726 int i;
1457 2727
2728#if EV_MULTIPLICITY
2729 /* mimic free (0) */
2730 if (!EV_A)
2731 return;
2732#endif
2733
2734#if EV_CLEANUP_ENABLE
2735 /* queue cleanup watchers (and execute them) */
2736 if (expect_false (cleanupcnt))
2737 {
2738 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2739 EV_INVOKE_PENDING;
2740 }
2741#endif
2742
2743#if EV_CHILD_ENABLE
2744 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2745 {
2746 ev_ref (EV_A); /* child watcher */
2747 ev_signal_stop (EV_A_ &childev);
2748 }
2749#endif
2750
1458 if (ev_is_active (&pipe_w)) 2751 if (ev_is_active (&pipe_w))
1459 { 2752 {
1460 ev_ref (EV_A); /* signal watcher */ 2753 /*ev_ref (EV_A);*/
1461 ev_io_stop (EV_A_ &pipe_w); 2754 /*ev_io_stop (EV_A_ &pipe_w);*/
1462 2755
2756 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2757 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2758 }
2759
1463#if EV_USE_EVENTFD 2760#if EV_USE_SIGNALFD
1464 if (evfd >= 0) 2761 if (ev_is_active (&sigfd_w))
1465 close (evfd); 2762 close (sigfd);
1466#endif 2763#endif
1467
1468 if (evpipe [0] >= 0)
1469 {
1470 close (evpipe [0]);
1471 close (evpipe [1]);
1472 }
1473 }
1474 2764
1475#if EV_USE_INOTIFY 2765#if EV_USE_INOTIFY
1476 if (fs_fd >= 0) 2766 if (fs_fd >= 0)
1477 close (fs_fd); 2767 close (fs_fd);
1478#endif 2768#endif
1479 2769
1480 if (backend_fd >= 0) 2770 if (backend_fd >= 0)
1481 close (backend_fd); 2771 close (backend_fd);
1482 2772
2773#if EV_USE_IOCP
2774 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2775#endif
1483#if EV_USE_PORT 2776#if EV_USE_PORT
1484 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2777 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1485#endif 2778#endif
1486#if EV_USE_KQUEUE 2779#if EV_USE_KQUEUE
1487 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2780 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1502#if EV_IDLE_ENABLE 2795#if EV_IDLE_ENABLE
1503 array_free (idle, [i]); 2796 array_free (idle, [i]);
1504#endif 2797#endif
1505 } 2798 }
1506 2799
1507 ev_free (anfds); anfdmax = 0; 2800 ev_free (anfds); anfds = 0; anfdmax = 0;
1508 2801
1509 /* have to use the microsoft-never-gets-it-right macro */ 2802 /* have to use the microsoft-never-gets-it-right macro */
1510 array_free (rfeed, EMPTY); 2803 array_free (rfeed, EMPTY);
1511 array_free (fdchange, EMPTY); 2804 array_free (fdchange, EMPTY);
1512 array_free (timer, EMPTY); 2805 array_free (timer, EMPTY);
… …
1514 array_free (periodic, EMPTY); 2807 array_free (periodic, EMPTY);
1515#endif 2808#endif
1516#if EV_FORK_ENABLE 2809#if EV_FORK_ENABLE
1517 array_free (fork, EMPTY); 2810 array_free (fork, EMPTY);
1518#endif 2811#endif
2812#if EV_CLEANUP_ENABLE
2813 array_free (cleanup, EMPTY);
2814#endif
1519 array_free (prepare, EMPTY); 2815 array_free (prepare, EMPTY);
1520 array_free (check, EMPTY); 2816 array_free (check, EMPTY);
1521#if EV_ASYNC_ENABLE 2817#if EV_ASYNC_ENABLE
1522 array_free (async, EMPTY); 2818 array_free (async, EMPTY);
1523#endif 2819#endif
1524 2820
1525 backend = 0; 2821 backend = 0;
2822
2823#if EV_MULTIPLICITY
2824 if (ev_is_default_loop (EV_A))
2825#endif
2826 ev_default_loop_ptr = 0;
2827#if EV_MULTIPLICITY
2828 else
2829 ev_free (EV_A);
2830#endif
1526} 2831}
1527 2832
1528#if EV_USE_INOTIFY 2833#if EV_USE_INOTIFY
1529inline_size void infy_fork (EV_P); 2834inline_size void infy_fork (EV_P);
1530#endif 2835#endif
… …
1543#endif 2848#endif
1544#if EV_USE_INOTIFY 2849#if EV_USE_INOTIFY
1545 infy_fork (EV_A); 2850 infy_fork (EV_A);
1546#endif 2851#endif
1547 2852
2853#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1548 if (ev_is_active (&pipe_w)) 2854 if (ev_is_active (&pipe_w))
1549 { 2855 {
1550 /* this "locks" the handlers against writing to the pipe */ 2856 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1551 /* while we modify the fd vars */
1552 gotsig = 1;
1553#if EV_ASYNC_ENABLE
1554 gotasync = 1;
1555#endif
1556 2857
1557 ev_ref (EV_A); 2858 ev_ref (EV_A);
1558 ev_io_stop (EV_A_ &pipe_w); 2859 ev_io_stop (EV_A_ &pipe_w);
1559 2860
1560#if EV_USE_EVENTFD
1561 if (evfd >= 0)
1562 close (evfd);
1563#endif
1564
1565 if (evpipe [0] >= 0) 2861 if (evpipe [0] >= 0)
1566 { 2862 EV_WIN32_CLOSE_FD (evpipe [0]);
1567 close (evpipe [0]);
1568 close (evpipe [1]);
1569 }
1570 2863
1571 evpipe_init (EV_A); 2864 evpipe_init (EV_A);
1572 /* now iterate over everything, in case we missed something */ 2865 /* iterate over everything, in case we missed something before */
1573 pipecb (EV_A_ &pipe_w, EV_READ); 2866 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1574 } 2867 }
2868#endif
1575 2869
1576 postfork = 0; 2870 postfork = 0;
1577} 2871}
1578 2872
1579#if EV_MULTIPLICITY 2873#if EV_MULTIPLICITY
1580 2874
1581struct ev_loop * 2875struct ev_loop * ecb_cold
1582ev_loop_new (unsigned int flags) 2876ev_loop_new (unsigned int flags) EV_THROW
1583{ 2877{
1584 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2878 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1585 2879
1586 memset (loop, 0, sizeof (struct ev_loop)); 2880 memset (EV_A, 0, sizeof (struct ev_loop));
1587
1588 loop_init (EV_A_ flags); 2881 loop_init (EV_A_ flags);
1589 2882
1590 if (ev_backend (EV_A)) 2883 if (ev_backend (EV_A))
1591 return loop; 2884 return EV_A;
1592 2885
2886 ev_free (EV_A);
1593 return 0; 2887 return 0;
1594} 2888}
1595 2889
1596void 2890#endif /* multiplicity */
1597ev_loop_destroy (EV_P)
1598{
1599 loop_destroy (EV_A);
1600 ev_free (loop);
1601}
1602
1603void
1604ev_loop_fork (EV_P)
1605{
1606 postfork = 1; /* must be in line with ev_default_fork */
1607}
1608 2891
1609#if EV_VERIFY 2892#if EV_VERIFY
1610static void noinline 2893static void noinline ecb_cold
1611verify_watcher (EV_P_ W w) 2894verify_watcher (EV_P_ W w)
1612{ 2895{
1613 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2896 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1614 2897
1615 if (w->pending) 2898 if (w->pending)
1616 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2899 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1617} 2900}
1618 2901
1619static void noinline 2902static void noinline ecb_cold
1620verify_heap (EV_P_ ANHE *heap, int N) 2903verify_heap (EV_P_ ANHE *heap, int N)
1621{ 2904{
1622 int i; 2905 int i;
1623 2906
1624 for (i = HEAP0; i < N + HEAP0; ++i) 2907 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1629 2912
1630 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2913 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1631 } 2914 }
1632} 2915}
1633 2916
1634static void noinline 2917static void noinline ecb_cold
1635array_verify (EV_P_ W *ws, int cnt) 2918array_verify (EV_P_ W *ws, int cnt)
1636{ 2919{
1637 while (cnt--) 2920 while (cnt--)
1638 { 2921 {
1639 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2922 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1640 verify_watcher (EV_A_ ws [cnt]); 2923 verify_watcher (EV_A_ ws [cnt]);
1641 } 2924 }
1642} 2925}
1643#endif 2926#endif
1644 2927
1645void 2928#if EV_FEATURE_API
1646ev_loop_verify (EV_P) 2929void ecb_cold
2930ev_verify (EV_P) EV_THROW
1647{ 2931{
1648#if EV_VERIFY 2932#if EV_VERIFY
1649 int i; 2933 int i;
1650 WL w; 2934 WL w, w2;
1651 2935
1652 assert (activecnt >= -1); 2936 assert (activecnt >= -1);
1653 2937
1654 assert (fdchangemax >= fdchangecnt); 2938 assert (fdchangemax >= fdchangecnt);
1655 for (i = 0; i < fdchangecnt; ++i) 2939 for (i = 0; i < fdchangecnt; ++i)
1656 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2940 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1657 2941
1658 assert (anfdmax >= 0); 2942 assert (anfdmax >= 0);
1659 for (i = 0; i < anfdmax; ++i) 2943 for (i = 0; i < anfdmax; ++i)
2944 {
2945 int j = 0;
2946
1660 for (w = anfds [i].head; w; w = w->next) 2947 for (w = w2 = anfds [i].head; w; w = w->next)
1661 { 2948 {
1662 verify_watcher (EV_A_ (W)w); 2949 verify_watcher (EV_A_ (W)w);
2950
2951 if (j++ & 1)
2952 {
2953 assert (("libev: io watcher list contains a loop", w != w2));
2954 w2 = w2->next;
2955 }
2956
1663 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2957 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1664 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2958 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1665 } 2959 }
2960 }
1666 2961
1667 assert (timermax >= timercnt); 2962 assert (timermax >= timercnt);
1668 verify_heap (EV_A_ timers, timercnt); 2963 verify_heap (EV_A_ timers, timercnt);
1669 2964
1670#if EV_PERIODIC_ENABLE 2965#if EV_PERIODIC_ENABLE
… …
1685#if EV_FORK_ENABLE 2980#if EV_FORK_ENABLE
1686 assert (forkmax >= forkcnt); 2981 assert (forkmax >= forkcnt);
1687 array_verify (EV_A_ (W *)forks, forkcnt); 2982 array_verify (EV_A_ (W *)forks, forkcnt);
1688#endif 2983#endif
1689 2984
2985#if EV_CLEANUP_ENABLE
2986 assert (cleanupmax >= cleanupcnt);
2987 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2988#endif
2989
1690#if EV_ASYNC_ENABLE 2990#if EV_ASYNC_ENABLE
1691 assert (asyncmax >= asynccnt); 2991 assert (asyncmax >= asynccnt);
1692 array_verify (EV_A_ (W *)asyncs, asynccnt); 2992 array_verify (EV_A_ (W *)asyncs, asynccnt);
1693#endif 2993#endif
1694 2994
2995#if EV_PREPARE_ENABLE
1695 assert (preparemax >= preparecnt); 2996 assert (preparemax >= preparecnt);
1696 array_verify (EV_A_ (W *)prepares, preparecnt); 2997 array_verify (EV_A_ (W *)prepares, preparecnt);
2998#endif
1697 2999
3000#if EV_CHECK_ENABLE
1698 assert (checkmax >= checkcnt); 3001 assert (checkmax >= checkcnt);
1699 array_verify (EV_A_ (W *)checks, checkcnt); 3002 array_verify (EV_A_ (W *)checks, checkcnt);
3003#endif
1700 3004
1701# if 0 3005# if 0
3006#if EV_CHILD_ENABLE
1702 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 3007 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1703 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 3008 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
3009#endif
1704# endif 3010# endif
1705#endif 3011#endif
1706} 3012}
1707 3013#endif
1708#endif /* multiplicity */
1709 3014
1710#if EV_MULTIPLICITY 3015#if EV_MULTIPLICITY
1711struct ev_loop * 3016struct ev_loop * ecb_cold
1712ev_default_loop_init (unsigned int flags)
1713#else 3017#else
1714int 3018int
3019#endif
1715ev_default_loop (unsigned int flags) 3020ev_default_loop (unsigned int flags) EV_THROW
1716#endif
1717{ 3021{
1718 if (!ev_default_loop_ptr) 3022 if (!ev_default_loop_ptr)
1719 { 3023 {
1720#if EV_MULTIPLICITY 3024#if EV_MULTIPLICITY
1721 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 3025 EV_P = ev_default_loop_ptr = &default_loop_struct;
1722#else 3026#else
1723 ev_default_loop_ptr = 1; 3027 ev_default_loop_ptr = 1;
1724#endif 3028#endif
1725 3029
1726 loop_init (EV_A_ flags); 3030 loop_init (EV_A_ flags);
1727 3031
1728 if (ev_backend (EV_A)) 3032 if (ev_backend (EV_A))
1729 { 3033 {
1730#ifndef _WIN32 3034#if EV_CHILD_ENABLE
1731 ev_signal_init (&childev, childcb, SIGCHLD); 3035 ev_signal_init (&childev, childcb, SIGCHLD);
1732 ev_set_priority (&childev, EV_MAXPRI); 3036 ev_set_priority (&childev, EV_MAXPRI);
1733 ev_signal_start (EV_A_ &childev); 3037 ev_signal_start (EV_A_ &childev);
1734 ev_unref (EV_A); /* child watcher should not keep loop alive */ 3038 ev_unref (EV_A); /* child watcher should not keep loop alive */
1735#endif 3039#endif
… …
1740 3044
1741 return ev_default_loop_ptr; 3045 return ev_default_loop_ptr;
1742} 3046}
1743 3047
1744void 3048void
1745ev_default_destroy (void) 3049ev_loop_fork (EV_P) EV_THROW
1746{ 3050{
1747#if EV_MULTIPLICITY 3051 postfork = 1;
1748 struct ev_loop *loop = ev_default_loop_ptr;
1749#endif
1750
1751 ev_default_loop_ptr = 0;
1752
1753#ifndef _WIN32
1754 ev_ref (EV_A); /* child watcher */
1755 ev_signal_stop (EV_A_ &childev);
1756#endif
1757
1758 loop_destroy (EV_A);
1759}
1760
1761void
1762ev_default_fork (void)
1763{
1764#if EV_MULTIPLICITY
1765 struct ev_loop *loop = ev_default_loop_ptr;
1766#endif
1767
1768 postfork = 1; /* must be in line with ev_loop_fork */
1769} 3052}
1770 3053
1771/*****************************************************************************/ 3054/*****************************************************************************/
1772 3055
1773void 3056void
1774ev_invoke (EV_P_ void *w, int revents) 3057ev_invoke (EV_P_ void *w, int revents)
1775{ 3058{
1776 EV_CB_INVOKE ((W)w, revents); 3059 EV_CB_INVOKE ((W)w, revents);
1777} 3060}
1778 3061
1779inline_speed void 3062unsigned int
1780call_pending (EV_P) 3063ev_pending_count (EV_P) EV_THROW
1781{ 3064{
1782 int pri; 3065 int pri;
3066 unsigned int count = 0;
1783 3067
1784 for (pri = NUMPRI; pri--; ) 3068 for (pri = NUMPRI; pri--; )
3069 count += pendingcnt [pri];
3070
3071 return count;
3072}
3073
3074void noinline
3075ev_invoke_pending (EV_P)
3076{
3077 pendingpri = NUMPRI;
3078
3079 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3080 {
3081 --pendingpri;
3082
1785 while (pendingcnt [pri]) 3083 while (pendingcnt [pendingpri])
1786 { 3084 {
1787 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3085 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1788 3086
1789 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1790 /* ^ this is no longer true, as pending_w could be here */
1791
1792 p->w->pending = 0; 3087 p->w->pending = 0;
1793 EV_CB_INVOKE (p->w, p->events); 3088 EV_CB_INVOKE (p->w, p->events);
1794 EV_FREQUENT_CHECK; 3089 EV_FREQUENT_CHECK;
1795 } 3090 }
3091 }
1796} 3092}
1797 3093
1798#if EV_IDLE_ENABLE 3094#if EV_IDLE_ENABLE
1799/* make idle watchers pending. this handles the "call-idle */ 3095/* make idle watchers pending. this handles the "call-idle */
1800/* only when higher priorities are idle" logic */ 3096/* only when higher priorities are idle" logic */
… …
1852 EV_FREQUENT_CHECK; 3148 EV_FREQUENT_CHECK;
1853 feed_reverse (EV_A_ (W)w); 3149 feed_reverse (EV_A_ (W)w);
1854 } 3150 }
1855 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 3151 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1856 3152
1857 feed_reverse_done (EV_A_ EV_TIMEOUT); 3153 feed_reverse_done (EV_A_ EV_TIMER);
1858 } 3154 }
1859} 3155}
1860 3156
1861#if EV_PERIODIC_ENABLE 3157#if EV_PERIODIC_ENABLE
3158
3159static void noinline
3160periodic_recalc (EV_P_ ev_periodic *w)
3161{
3162 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3163 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3164
3165 /* the above almost always errs on the low side */
3166 while (at <= ev_rt_now)
3167 {
3168 ev_tstamp nat = at + w->interval;
3169
3170 /* when resolution fails us, we use ev_rt_now */
3171 if (expect_false (nat == at))
3172 {
3173 at = ev_rt_now;
3174 break;
3175 }
3176
3177 at = nat;
3178 }
3179
3180 ev_at (w) = at;
3181}
3182
1862/* make periodics pending */ 3183/* make periodics pending */
1863inline_size void 3184inline_size void
1864periodics_reify (EV_P) 3185periodics_reify (EV_P)
1865{ 3186{
1866 EV_FREQUENT_CHECK; 3187 EV_FREQUENT_CHECK;
1867 3188
1868 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3189 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1869 { 3190 {
1870 int feed_count = 0;
1871
1872 do 3191 do
1873 { 3192 {
1874 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3193 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1875 3194
1876 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3195 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
1885 ANHE_at_cache (periodics [HEAP0]); 3204 ANHE_at_cache (periodics [HEAP0]);
1886 downheap (periodics, periodiccnt, HEAP0); 3205 downheap (periodics, periodiccnt, HEAP0);
1887 } 3206 }
1888 else if (w->interval) 3207 else if (w->interval)
1889 { 3208 {
1890 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3209 periodic_recalc (EV_A_ w);
1891 /* if next trigger time is not sufficiently in the future, put it there */
1892 /* this might happen because of floating point inexactness */
1893 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1894 {
1895 ev_at (w) += w->interval;
1896
1897 /* if interval is unreasonably low we might still have a time in the past */
1898 /* so correct this. this will make the periodic very inexact, but the user */
1899 /* has effectively asked to get triggered more often than possible */
1900 if (ev_at (w) < ev_rt_now)
1901 ev_at (w) = ev_rt_now;
1902 }
1903
1904 ANHE_at_cache (periodics [HEAP0]); 3210 ANHE_at_cache (periodics [HEAP0]);
1905 downheap (periodics, periodiccnt, HEAP0); 3211 downheap (periodics, periodiccnt, HEAP0);
1906 } 3212 }
1907 else 3213 else
1908 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3214 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1915 feed_reverse_done (EV_A_ EV_PERIODIC); 3221 feed_reverse_done (EV_A_ EV_PERIODIC);
1916 } 3222 }
1917} 3223}
1918 3224
1919/* simply recalculate all periodics */ 3225/* simply recalculate all periodics */
1920/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 3226/* TODO: maybe ensure that at least one event happens when jumping forward? */
1921static void noinline 3227static void noinline ecb_cold
1922periodics_reschedule (EV_P) 3228periodics_reschedule (EV_P)
1923{ 3229{
1924 int i; 3230 int i;
1925 3231
1926 /* adjust periodics after time jump */ 3232 /* adjust periodics after time jump */
… …
1929 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3235 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1930 3236
1931 if (w->reschedule_cb) 3237 if (w->reschedule_cb)
1932 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3238 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1933 else if (w->interval) 3239 else if (w->interval)
1934 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3240 periodic_recalc (EV_A_ w);
1935 3241
1936 ANHE_at_cache (periodics [i]); 3242 ANHE_at_cache (periodics [i]);
1937 } 3243 }
1938 3244
1939 reheap (periodics, periodiccnt); 3245 reheap (periodics, periodiccnt);
1940} 3246}
1941#endif 3247#endif
1942 3248
1943/* adjust all timers by a given offset */ 3249/* adjust all timers by a given offset */
1944static void noinline 3250static void noinline ecb_cold
1945timers_reschedule (EV_P_ ev_tstamp adjust) 3251timers_reschedule (EV_P_ ev_tstamp adjust)
1946{ 3252{
1947 int i; 3253 int i;
1948 3254
1949 for (i = 0; i < timercnt; ++i) 3255 for (i = 0; i < timercnt; ++i)
… …
1953 ANHE_at_cache (*he); 3259 ANHE_at_cache (*he);
1954 } 3260 }
1955} 3261}
1956 3262
1957/* fetch new monotonic and realtime times from the kernel */ 3263/* fetch new monotonic and realtime times from the kernel */
1958/* also detetc if there was a timejump, and act accordingly */ 3264/* also detect if there was a timejump, and act accordingly */
1959inline_speed void 3265inline_speed void
1960time_update (EV_P_ ev_tstamp max_block) 3266time_update (EV_P_ ev_tstamp max_block)
1961{ 3267{
1962#if EV_USE_MONOTONIC 3268#if EV_USE_MONOTONIC
1963 if (expect_true (have_monotonic)) 3269 if (expect_true (have_monotonic))
… …
1986 * doesn't hurt either as we only do this on time-jumps or 3292 * doesn't hurt either as we only do this on time-jumps or
1987 * in the unlikely event of having been preempted here. 3293 * in the unlikely event of having been preempted here.
1988 */ 3294 */
1989 for (i = 4; --i; ) 3295 for (i = 4; --i; )
1990 { 3296 {
3297 ev_tstamp diff;
1991 rtmn_diff = ev_rt_now - mn_now; 3298 rtmn_diff = ev_rt_now - mn_now;
1992 3299
3300 diff = odiff - rtmn_diff;
3301
1993 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3302 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
1994 return; /* all is well */ 3303 return; /* all is well */
1995 3304
1996 ev_rt_now = ev_time (); 3305 ev_rt_now = ev_time ();
1997 mn_now = get_clock (); 3306 mn_now = get_clock ();
1998 now_floor = mn_now; 3307 now_floor = mn_now;
… …
2020 3329
2021 mn_now = ev_rt_now; 3330 mn_now = ev_rt_now;
2022 } 3331 }
2023} 3332}
2024 3333
2025static int loop_done; 3334int
2026
2027void
2028ev_loop (EV_P_ int flags) 3335ev_run (EV_P_ int flags)
2029{ 3336{
3337#if EV_FEATURE_API
3338 ++loop_depth;
3339#endif
3340
3341 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
3342
2030 loop_done = EVUNLOOP_CANCEL; 3343 loop_done = EVBREAK_CANCEL;
2031 3344
2032 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 3345 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2033 3346
2034 do 3347 do
2035 { 3348 {
2036#if EV_VERIFY >= 2 3349#if EV_VERIFY >= 2
2037 ev_loop_verify (EV_A); 3350 ev_verify (EV_A);
2038#endif 3351#endif
2039 3352
2040#ifndef _WIN32 3353#ifndef _WIN32
2041 if (expect_false (curpid)) /* penalise the forking check even more */ 3354 if (expect_false (curpid)) /* penalise the forking check even more */
2042 if (expect_false (getpid () != curpid)) 3355 if (expect_false (getpid () != curpid))
… …
2050 /* we might have forked, so queue fork handlers */ 3363 /* we might have forked, so queue fork handlers */
2051 if (expect_false (postfork)) 3364 if (expect_false (postfork))
2052 if (forkcnt) 3365 if (forkcnt)
2053 { 3366 {
2054 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3367 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2055 call_pending (EV_A); 3368 EV_INVOKE_PENDING;
2056 } 3369 }
2057#endif 3370#endif
2058 3371
3372#if EV_PREPARE_ENABLE
2059 /* queue prepare watchers (and execute them) */ 3373 /* queue prepare watchers (and execute them) */
2060 if (expect_false (preparecnt)) 3374 if (expect_false (preparecnt))
2061 { 3375 {
2062 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3376 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2063 call_pending (EV_A); 3377 EV_INVOKE_PENDING;
2064 } 3378 }
3379#endif
3380
3381 if (expect_false (loop_done))
3382 break;
2065 3383
2066 /* we might have forked, so reify kernel state if necessary */ 3384 /* we might have forked, so reify kernel state if necessary */
2067 if (expect_false (postfork)) 3385 if (expect_false (postfork))
2068 loop_fork (EV_A); 3386 loop_fork (EV_A);
2069 3387
… …
2073 /* calculate blocking time */ 3391 /* calculate blocking time */
2074 { 3392 {
2075 ev_tstamp waittime = 0.; 3393 ev_tstamp waittime = 0.;
2076 ev_tstamp sleeptime = 0.; 3394 ev_tstamp sleeptime = 0.;
2077 3395
3396 /* remember old timestamp for io_blocktime calculation */
3397 ev_tstamp prev_mn_now = mn_now;
3398
3399 /* update time to cancel out callback processing overhead */
3400 time_update (EV_A_ 1e100);
3401
3402 /* from now on, we want a pipe-wake-up */
3403 pipe_write_wanted = 1;
3404
3405 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3406
2078 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3407 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2079 { 3408 {
2080 /* remember old timestamp for io_blocktime calculation */
2081 ev_tstamp prev_mn_now = mn_now;
2082
2083 /* update time to cancel out callback processing overhead */
2084 time_update (EV_A_ 1e100);
2085
2086 waittime = MAX_BLOCKTIME; 3409 waittime = MAX_BLOCKTIME;
2087 3410
2088 if (timercnt) 3411 if (timercnt)
2089 { 3412 {
2090 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3413 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2091 if (waittime > to) waittime = to; 3414 if (waittime > to) waittime = to;
2092 } 3415 }
2093 3416
2094#if EV_PERIODIC_ENABLE 3417#if EV_PERIODIC_ENABLE
2095 if (periodiccnt) 3418 if (periodiccnt)
2096 { 3419 {
2097 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3420 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2098 if (waittime > to) waittime = to; 3421 if (waittime > to) waittime = to;
2099 } 3422 }
2100#endif 3423#endif
2101 3424
2102 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3425 /* don't let timeouts decrease the waittime below timeout_blocktime */
2103 if (expect_false (waittime < timeout_blocktime)) 3426 if (expect_false (waittime < timeout_blocktime))
2104 waittime = timeout_blocktime; 3427 waittime = timeout_blocktime;
3428
3429 /* at this point, we NEED to wait, so we have to ensure */
3430 /* to pass a minimum nonzero value to the backend */
3431 if (expect_false (waittime < backend_mintime))
3432 waittime = backend_mintime;
2105 3433
2106 /* extra check because io_blocktime is commonly 0 */ 3434 /* extra check because io_blocktime is commonly 0 */
2107 if (expect_false (io_blocktime)) 3435 if (expect_false (io_blocktime))
2108 { 3436 {
2109 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3437 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2110 3438
2111 if (sleeptime > waittime - backend_fudge) 3439 if (sleeptime > waittime - backend_mintime)
2112 sleeptime = waittime - backend_fudge; 3440 sleeptime = waittime - backend_mintime;
2113 3441
2114 if (expect_true (sleeptime > 0.)) 3442 if (expect_true (sleeptime > 0.))
2115 { 3443 {
2116 ev_sleep (sleeptime); 3444 ev_sleep (sleeptime);
2117 waittime -= sleeptime; 3445 waittime -= sleeptime;
2118 } 3446 }
2119 } 3447 }
2120 } 3448 }
2121 3449
3450#if EV_FEATURE_API
2122 ++loop_count; 3451 ++loop_count;
3452#endif
3453 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2123 backend_poll (EV_A_ waittime); 3454 backend_poll (EV_A_ waittime);
3455 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3456
3457 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3458
3459 ECB_MEMORY_FENCE_ACQUIRE;
3460 if (pipe_write_skipped)
3461 {
3462 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3463 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3464 }
3465
2124 3466
2125 /* update ev_rt_now, do magic */ 3467 /* update ev_rt_now, do magic */
2126 time_update (EV_A_ waittime + sleeptime); 3468 time_update (EV_A_ waittime + sleeptime);
2127 } 3469 }
2128 3470
… …
2135#if EV_IDLE_ENABLE 3477#if EV_IDLE_ENABLE
2136 /* queue idle watchers unless other events are pending */ 3478 /* queue idle watchers unless other events are pending */
2137 idle_reify (EV_A); 3479 idle_reify (EV_A);
2138#endif 3480#endif
2139 3481
3482#if EV_CHECK_ENABLE
2140 /* queue check watchers, to be executed first */ 3483 /* queue check watchers, to be executed first */
2141 if (expect_false (checkcnt)) 3484 if (expect_false (checkcnt))
2142 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3485 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3486#endif
2143 3487
2144 call_pending (EV_A); 3488 EV_INVOKE_PENDING;
2145 } 3489 }
2146 while (expect_true ( 3490 while (expect_true (
2147 activecnt 3491 activecnt
2148 && !loop_done 3492 && !loop_done
2149 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3493 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2150 )); 3494 ));
2151 3495
2152 if (loop_done == EVUNLOOP_ONE) 3496 if (loop_done == EVBREAK_ONE)
2153 loop_done = EVUNLOOP_CANCEL; 3497 loop_done = EVBREAK_CANCEL;
3498
3499#if EV_FEATURE_API
3500 --loop_depth;
3501#endif
3502
3503 return activecnt;
2154} 3504}
2155 3505
2156void 3506void
2157ev_unloop (EV_P_ int how) 3507ev_break (EV_P_ int how) EV_THROW
2158{ 3508{
2159 loop_done = how; 3509 loop_done = how;
2160} 3510}
2161 3511
2162void 3512void
2163ev_ref (EV_P) 3513ev_ref (EV_P) EV_THROW
2164{ 3514{
2165 ++activecnt; 3515 ++activecnt;
2166} 3516}
2167 3517
2168void 3518void
2169ev_unref (EV_P) 3519ev_unref (EV_P) EV_THROW
2170{ 3520{
2171 --activecnt; 3521 --activecnt;
2172} 3522}
2173 3523
2174void 3524void
2175ev_now_update (EV_P) 3525ev_now_update (EV_P) EV_THROW
2176{ 3526{
2177 time_update (EV_A_ 1e100); 3527 time_update (EV_A_ 1e100);
2178} 3528}
2179 3529
2180void 3530void
2181ev_suspend (EV_P) 3531ev_suspend (EV_P) EV_THROW
2182{ 3532{
2183 ev_now_update (EV_A); 3533 ev_now_update (EV_A);
2184} 3534}
2185 3535
2186void 3536void
2187ev_resume (EV_P) 3537ev_resume (EV_P) EV_THROW
2188{ 3538{
2189 ev_tstamp mn_prev = mn_now; 3539 ev_tstamp mn_prev = mn_now;
2190 3540
2191 ev_now_update (EV_A); 3541 ev_now_update (EV_A);
2192 timers_reschedule (EV_A_ mn_now - mn_prev); 3542 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2209inline_size void 3559inline_size void
2210wlist_del (WL *head, WL elem) 3560wlist_del (WL *head, WL elem)
2211{ 3561{
2212 while (*head) 3562 while (*head)
2213 { 3563 {
2214 if (*head == elem) 3564 if (expect_true (*head == elem))
2215 { 3565 {
2216 *head = elem->next; 3566 *head = elem->next;
2217 return; 3567 break;
2218 } 3568 }
2219 3569
2220 head = &(*head)->next; 3570 head = &(*head)->next;
2221 } 3571 }
2222} 3572}
… …
2231 w->pending = 0; 3581 w->pending = 0;
2232 } 3582 }
2233} 3583}
2234 3584
2235int 3585int
2236ev_clear_pending (EV_P_ void *w) 3586ev_clear_pending (EV_P_ void *w) EV_THROW
2237{ 3587{
2238 W w_ = (W)w; 3588 W w_ = (W)w;
2239 int pending = w_->pending; 3589 int pending = w_->pending;
2240 3590
2241 if (expect_true (pending)) 3591 if (expect_true (pending))
… …
2250} 3600}
2251 3601
2252inline_size void 3602inline_size void
2253pri_adjust (EV_P_ W w) 3603pri_adjust (EV_P_ W w)
2254{ 3604{
2255 int pri = w->priority; 3605 int pri = ev_priority (w);
2256 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 3606 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2257 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 3607 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2258 w->priority = pri; 3608 ev_set_priority (w, pri);
2259} 3609}
2260 3610
2261inline_speed void 3611inline_speed void
2262ev_start (EV_P_ W w, int active) 3612ev_start (EV_P_ W w, int active)
2263{ 3613{
… …
2274} 3624}
2275 3625
2276/*****************************************************************************/ 3626/*****************************************************************************/
2277 3627
2278void noinline 3628void noinline
2279ev_io_start (EV_P_ ev_io *w) 3629ev_io_start (EV_P_ ev_io *w) EV_THROW
2280{ 3630{
2281 int fd = w->fd; 3631 int fd = w->fd;
2282 3632
2283 if (expect_false (ev_is_active (w))) 3633 if (expect_false (ev_is_active (w)))
2284 return; 3634 return;
2285 3635
2286 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3636 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2287 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3637 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2288 3638
2289 EV_FREQUENT_CHECK; 3639 EV_FREQUENT_CHECK;
2290 3640
2291 ev_start (EV_A_ (W)w, 1); 3641 ev_start (EV_A_ (W)w, 1);
2292 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3642 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2293 wlist_add (&anfds[fd].head, (WL)w); 3643 wlist_add (&anfds[fd].head, (WL)w);
2294 3644
3645 /* common bug, apparently */
3646 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3647
2295 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 3648 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2296 w->events &= ~EV__IOFDSET; 3649 w->events &= ~EV__IOFDSET;
2297 3650
2298 EV_FREQUENT_CHECK; 3651 EV_FREQUENT_CHECK;
2299} 3652}
2300 3653
2301void noinline 3654void noinline
2302ev_io_stop (EV_P_ ev_io *w) 3655ev_io_stop (EV_P_ ev_io *w) EV_THROW
2303{ 3656{
2304 clear_pending (EV_A_ (W)w); 3657 clear_pending (EV_A_ (W)w);
2305 if (expect_false (!ev_is_active (w))) 3658 if (expect_false (!ev_is_active (w)))
2306 return; 3659 return;
2307 3660
… …
2310 EV_FREQUENT_CHECK; 3663 EV_FREQUENT_CHECK;
2311 3664
2312 wlist_del (&anfds[w->fd].head, (WL)w); 3665 wlist_del (&anfds[w->fd].head, (WL)w);
2313 ev_stop (EV_A_ (W)w); 3666 ev_stop (EV_A_ (W)w);
2314 3667
2315 fd_change (EV_A_ w->fd, 1); 3668 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2316 3669
2317 EV_FREQUENT_CHECK; 3670 EV_FREQUENT_CHECK;
2318} 3671}
2319 3672
2320void noinline 3673void noinline
2321ev_timer_start (EV_P_ ev_timer *w) 3674ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2322{ 3675{
2323 if (expect_false (ev_is_active (w))) 3676 if (expect_false (ev_is_active (w)))
2324 return; 3677 return;
2325 3678
2326 ev_at (w) += mn_now; 3679 ev_at (w) += mn_now;
… …
2340 3693
2341 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3694 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2342} 3695}
2343 3696
2344void noinline 3697void noinline
2345ev_timer_stop (EV_P_ ev_timer *w) 3698ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2346{ 3699{
2347 clear_pending (EV_A_ (W)w); 3700 clear_pending (EV_A_ (W)w);
2348 if (expect_false (!ev_is_active (w))) 3701 if (expect_false (!ev_is_active (w)))
2349 return; 3702 return;
2350 3703
… …
2362 timers [active] = timers [timercnt + HEAP0]; 3715 timers [active] = timers [timercnt + HEAP0];
2363 adjustheap (timers, timercnt, active); 3716 adjustheap (timers, timercnt, active);
2364 } 3717 }
2365 } 3718 }
2366 3719
2367 EV_FREQUENT_CHECK;
2368
2369 ev_at (w) -= mn_now; 3720 ev_at (w) -= mn_now;
2370 3721
2371 ev_stop (EV_A_ (W)w); 3722 ev_stop (EV_A_ (W)w);
3723
3724 EV_FREQUENT_CHECK;
2372} 3725}
2373 3726
2374void noinline 3727void noinline
2375ev_timer_again (EV_P_ ev_timer *w) 3728ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2376{ 3729{
2377 EV_FREQUENT_CHECK; 3730 EV_FREQUENT_CHECK;
3731
3732 clear_pending (EV_A_ (W)w);
2378 3733
2379 if (ev_is_active (w)) 3734 if (ev_is_active (w))
2380 { 3735 {
2381 if (w->repeat) 3736 if (w->repeat)
2382 { 3737 {
… …
2394 } 3749 }
2395 3750
2396 EV_FREQUENT_CHECK; 3751 EV_FREQUENT_CHECK;
2397} 3752}
2398 3753
3754ev_tstamp
3755ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3756{
3757 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3758}
3759
2399#if EV_PERIODIC_ENABLE 3760#if EV_PERIODIC_ENABLE
2400void noinline 3761void noinline
2401ev_periodic_start (EV_P_ ev_periodic *w) 3762ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2402{ 3763{
2403 if (expect_false (ev_is_active (w))) 3764 if (expect_false (ev_is_active (w)))
2404 return; 3765 return;
2405 3766
2406 if (w->reschedule_cb) 3767 if (w->reschedule_cb)
2407 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3768 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2408 else if (w->interval) 3769 else if (w->interval)
2409 { 3770 {
2410 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3771 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2411 /* this formula differs from the one in periodic_reify because we do not always round up */ 3772 periodic_recalc (EV_A_ w);
2412 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2413 } 3773 }
2414 else 3774 else
2415 ev_at (w) = w->offset; 3775 ev_at (w) = w->offset;
2416 3776
2417 EV_FREQUENT_CHECK; 3777 EV_FREQUENT_CHECK;
… …
2427 3787
2428 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3788 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2429} 3789}
2430 3790
2431void noinline 3791void noinline
2432ev_periodic_stop (EV_P_ ev_periodic *w) 3792ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2433{ 3793{
2434 clear_pending (EV_A_ (W)w); 3794 clear_pending (EV_A_ (W)w);
2435 if (expect_false (!ev_is_active (w))) 3795 if (expect_false (!ev_is_active (w)))
2436 return; 3796 return;
2437 3797
… …
2449 periodics [active] = periodics [periodiccnt + HEAP0]; 3809 periodics [active] = periodics [periodiccnt + HEAP0];
2450 adjustheap (periodics, periodiccnt, active); 3810 adjustheap (periodics, periodiccnt, active);
2451 } 3811 }
2452 } 3812 }
2453 3813
2454 EV_FREQUENT_CHECK;
2455
2456 ev_stop (EV_A_ (W)w); 3814 ev_stop (EV_A_ (W)w);
3815
3816 EV_FREQUENT_CHECK;
2457} 3817}
2458 3818
2459void noinline 3819void noinline
2460ev_periodic_again (EV_P_ ev_periodic *w) 3820ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2461{ 3821{
2462 /* TODO: use adjustheap and recalculation */ 3822 /* TODO: use adjustheap and recalculation */
2463 ev_periodic_stop (EV_A_ w); 3823 ev_periodic_stop (EV_A_ w);
2464 ev_periodic_start (EV_A_ w); 3824 ev_periodic_start (EV_A_ w);
2465} 3825}
… …
2467 3827
2468#ifndef SA_RESTART 3828#ifndef SA_RESTART
2469# define SA_RESTART 0 3829# define SA_RESTART 0
2470#endif 3830#endif
2471 3831
3832#if EV_SIGNAL_ENABLE
3833
2472void noinline 3834void noinline
2473ev_signal_start (EV_P_ ev_signal *w) 3835ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2474{ 3836{
2475#if EV_MULTIPLICITY
2476 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2477#endif
2478 if (expect_false (ev_is_active (w))) 3837 if (expect_false (ev_is_active (w)))
2479 return; 3838 return;
2480 3839
2481 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3840 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2482 3841
2483 evpipe_init (EV_A); 3842#if EV_MULTIPLICITY
3843 assert (("libev: a signal must not be attached to two different loops",
3844 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2484 3845
2485 EV_FREQUENT_CHECK; 3846 signals [w->signum - 1].loop = EV_A;
3847 ECB_MEMORY_FENCE_RELEASE;
3848#endif
2486 3849
3850 EV_FREQUENT_CHECK;
3851
3852#if EV_USE_SIGNALFD
3853 if (sigfd == -2)
2487 { 3854 {
2488#ifndef _WIN32 3855 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2489 sigset_t full, prev; 3856 if (sigfd < 0 && errno == EINVAL)
2490 sigfillset (&full); 3857 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2491 sigprocmask (SIG_SETMASK, &full, &prev);
2492#endif
2493 3858
2494 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3859 if (sigfd >= 0)
3860 {
3861 fd_intern (sigfd); /* doing it twice will not hurt */
2495 3862
2496#ifndef _WIN32 3863 sigemptyset (&sigfd_set);
2497 sigprocmask (SIG_SETMASK, &prev, 0); 3864
2498#endif 3865 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3866 ev_set_priority (&sigfd_w, EV_MAXPRI);
3867 ev_io_start (EV_A_ &sigfd_w);
3868 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3869 }
2499 } 3870 }
3871
3872 if (sigfd >= 0)
3873 {
3874 /* TODO: check .head */
3875 sigaddset (&sigfd_set, w->signum);
3876 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3877
3878 signalfd (sigfd, &sigfd_set, 0);
3879 }
3880#endif
2500 3881
2501 ev_start (EV_A_ (W)w, 1); 3882 ev_start (EV_A_ (W)w, 1);
2502 wlist_add (&signals [w->signum - 1].head, (WL)w); 3883 wlist_add (&signals [w->signum - 1].head, (WL)w);
2503 3884
2504 if (!((WL)w)->next) 3885 if (!((WL)w)->next)
3886# if EV_USE_SIGNALFD
3887 if (sigfd < 0) /*TODO*/
3888# endif
2505 { 3889 {
2506#if _WIN32 3890# ifdef _WIN32
3891 evpipe_init (EV_A);
3892
2507 signal (w->signum, ev_sighandler); 3893 signal (w->signum, ev_sighandler);
2508#else 3894# else
2509 struct sigaction sa; 3895 struct sigaction sa;
3896
3897 evpipe_init (EV_A);
3898
2510 sa.sa_handler = ev_sighandler; 3899 sa.sa_handler = ev_sighandler;
2511 sigfillset (&sa.sa_mask); 3900 sigfillset (&sa.sa_mask);
2512 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3901 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2513 sigaction (w->signum, &sa, 0); 3902 sigaction (w->signum, &sa, 0);
3903
3904 if (origflags & EVFLAG_NOSIGMASK)
3905 {
3906 sigemptyset (&sa.sa_mask);
3907 sigaddset (&sa.sa_mask, w->signum);
3908 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3909 }
2514#endif 3910#endif
2515 } 3911 }
2516 3912
2517 EV_FREQUENT_CHECK; 3913 EV_FREQUENT_CHECK;
2518} 3914}
2519 3915
2520void noinline 3916void noinline
2521ev_signal_stop (EV_P_ ev_signal *w) 3917ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2522{ 3918{
2523 clear_pending (EV_A_ (W)w); 3919 clear_pending (EV_A_ (W)w);
2524 if (expect_false (!ev_is_active (w))) 3920 if (expect_false (!ev_is_active (w)))
2525 return; 3921 return;
2526 3922
… …
2528 3924
2529 wlist_del (&signals [w->signum - 1].head, (WL)w); 3925 wlist_del (&signals [w->signum - 1].head, (WL)w);
2530 ev_stop (EV_A_ (W)w); 3926 ev_stop (EV_A_ (W)w);
2531 3927
2532 if (!signals [w->signum - 1].head) 3928 if (!signals [w->signum - 1].head)
3929 {
3930#if EV_MULTIPLICITY
3931 signals [w->signum - 1].loop = 0; /* unattach from signal */
3932#endif
3933#if EV_USE_SIGNALFD
3934 if (sigfd >= 0)
3935 {
3936 sigset_t ss;
3937
3938 sigemptyset (&ss);
3939 sigaddset (&ss, w->signum);
3940 sigdelset (&sigfd_set, w->signum);
3941
3942 signalfd (sigfd, &sigfd_set, 0);
3943 sigprocmask (SIG_UNBLOCK, &ss, 0);
3944 }
3945 else
3946#endif
2533 signal (w->signum, SIG_DFL); 3947 signal (w->signum, SIG_DFL);
3948 }
2534 3949
2535 EV_FREQUENT_CHECK; 3950 EV_FREQUENT_CHECK;
2536} 3951}
3952
3953#endif
3954
3955#if EV_CHILD_ENABLE
2537 3956
2538void 3957void
2539ev_child_start (EV_P_ ev_child *w) 3958ev_child_start (EV_P_ ev_child *w) EV_THROW
2540{ 3959{
2541#if EV_MULTIPLICITY 3960#if EV_MULTIPLICITY
2542 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3961 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2543#endif 3962#endif
2544 if (expect_false (ev_is_active (w))) 3963 if (expect_false (ev_is_active (w)))
2545 return; 3964 return;
2546 3965
2547 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
2548 3967
2549 ev_start (EV_A_ (W)w, 1); 3968 ev_start (EV_A_ (W)w, 1);
2550 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3969 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2551 3970
2552 EV_FREQUENT_CHECK; 3971 EV_FREQUENT_CHECK;
2553} 3972}
2554 3973
2555void 3974void
2556ev_child_stop (EV_P_ ev_child *w) 3975ev_child_stop (EV_P_ ev_child *w) EV_THROW
2557{ 3976{
2558 clear_pending (EV_A_ (W)w); 3977 clear_pending (EV_A_ (W)w);
2559 if (expect_false (!ev_is_active (w))) 3978 if (expect_false (!ev_is_active (w)))
2560 return; 3979 return;
2561 3980
2562 EV_FREQUENT_CHECK; 3981 EV_FREQUENT_CHECK;
2563 3982
2564 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3983 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2565 ev_stop (EV_A_ (W)w); 3984 ev_stop (EV_A_ (W)w);
2566 3985
2567 EV_FREQUENT_CHECK; 3986 EV_FREQUENT_CHECK;
2568} 3987}
3988
3989#endif
2569 3990
2570#if EV_STAT_ENABLE 3991#if EV_STAT_ENABLE
2571 3992
2572# ifdef _WIN32 3993# ifdef _WIN32
2573# undef lstat 3994# undef lstat
… …
2579#define MIN_STAT_INTERVAL 0.1074891 4000#define MIN_STAT_INTERVAL 0.1074891
2580 4001
2581static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4002static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2582 4003
2583#if EV_USE_INOTIFY 4004#if EV_USE_INOTIFY
2584# define EV_INOTIFY_BUFSIZE 8192 4005
4006/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4007# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2585 4008
2586static void noinline 4009static void noinline
2587infy_add (EV_P_ ev_stat *w) 4010infy_add (EV_P_ ev_stat *w)
2588{ 4011{
2589 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); 4012 w->wd = inotify_add_watch (fs_fd, w->path,
4013 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4014 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4015 | IN_DONT_FOLLOW | IN_MASK_ADD);
2590 4016
2591 if (w->wd < 0) 4017 if (w->wd >= 0)
4018 {
4019 struct statfs sfs;
4020
4021 /* now local changes will be tracked by inotify, but remote changes won't */
4022 /* unless the filesystem is known to be local, we therefore still poll */
4023 /* also do poll on <2.6.25, but with normal frequency */
4024
4025 if (!fs_2625)
4026 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
4027 else if (!statfs (w->path, &sfs)
4028 && (sfs.f_type == 0x1373 /* devfs */
4029 || sfs.f_type == 0x4006 /* fat */
4030 || sfs.f_type == 0x4d44 /* msdos */
4031 || sfs.f_type == 0xEF53 /* ext2/3 */
4032 || sfs.f_type == 0x72b6 /* jffs2 */
4033 || sfs.f_type == 0x858458f6 /* ramfs */
4034 || sfs.f_type == 0x5346544e /* ntfs */
4035 || sfs.f_type == 0x3153464a /* jfs */
4036 || sfs.f_type == 0x9123683e /* btrfs */
4037 || sfs.f_type == 0x52654973 /* reiser3 */
4038 || sfs.f_type == 0x01021994 /* tmpfs */
4039 || sfs.f_type == 0x58465342 /* xfs */))
4040 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
4041 else
4042 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2592 { 4043 }
4044 else
4045 {
4046 /* can't use inotify, continue to stat */
2593 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4047 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2594 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2595 4048
2596 /* monitor some parent directory for speedup hints */ 4049 /* if path is not there, monitor some parent directory for speedup hints */
2597 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 4050 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2598 /* but an efficiency issue only */ 4051 /* but an efficiency issue only */
2599 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 4052 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2600 { 4053 {
2601 char path [4096]; 4054 char path [4096];
… …
2611 if (!pend || pend == path) 4064 if (!pend || pend == path)
2612 break; 4065 break;
2613 4066
2614 *pend = 0; 4067 *pend = 0;
2615 w->wd = inotify_add_watch (fs_fd, path, mask); 4068 w->wd = inotify_add_watch (fs_fd, path, mask);
2616 } 4069 }
2617 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 4070 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2618 } 4071 }
2619 } 4072 }
2620 4073
2621 if (w->wd >= 0) 4074 if (w->wd >= 0)
2622 {
2623 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4075 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2624 4076
2625 /* now local changes will be tracked by inotify, but remote changes won't */ 4077 /* now re-arm timer, if required */
2626 /* unless the filesystem it known to be local, we therefore still poll */ 4078 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2627 /* also do poll on <2.6.25, but with normal frequency */
2628 struct statfs sfs;
2629
2630 if (fs_2625 && !statfs (w->path, &sfs))
2631 if (sfs.f_type == 0x1373 /* devfs */
2632 || sfs.f_type == 0xEF53 /* ext2/3 */
2633 || sfs.f_type == 0x3153464a /* jfs */
2634 || sfs.f_type == 0x52654973 /* reiser3 */
2635 || sfs.f_type == 0x01021994 /* tempfs */
2636 || sfs.f_type == 0x58465342 /* xfs */)
2637 return;
2638
2639 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2640 ev_timer_again (EV_A_ &w->timer); 4079 ev_timer_again (EV_A_ &w->timer);
2641 } 4080 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2642} 4081}
2643 4082
2644static void noinline 4083static void noinline
2645infy_del (EV_P_ ev_stat *w) 4084infy_del (EV_P_ ev_stat *w)
2646{ 4085{
… …
2649 4088
2650 if (wd < 0) 4089 if (wd < 0)
2651 return; 4090 return;
2652 4091
2653 w->wd = -2; 4092 w->wd = -2;
2654 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 4093 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2655 wlist_del (&fs_hash [slot].head, (WL)w); 4094 wlist_del (&fs_hash [slot].head, (WL)w);
2656 4095
2657 /* remove this watcher, if others are watching it, they will rearm */ 4096 /* remove this watcher, if others are watching it, they will rearm */
2658 inotify_rm_watch (fs_fd, wd); 4097 inotify_rm_watch (fs_fd, wd);
2659} 4098}
… …
2661static void noinline 4100static void noinline
2662infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4101infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2663{ 4102{
2664 if (slot < 0) 4103 if (slot < 0)
2665 /* overflow, need to check for all hash slots */ 4104 /* overflow, need to check for all hash slots */
2666 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4105 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2667 infy_wd (EV_A_ slot, wd, ev); 4106 infy_wd (EV_A_ slot, wd, ev);
2668 else 4107 else
2669 { 4108 {
2670 WL w_; 4109 WL w_;
2671 4110
2672 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 4111 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2673 { 4112 {
2674 ev_stat *w = (ev_stat *)w_; 4113 ev_stat *w = (ev_stat *)w_;
2675 w_ = w_->next; /* lets us remove this watcher and all before it */ 4114 w_ = w_->next; /* lets us remove this watcher and all before it */
2676 4115
2677 if (w->wd == wd || wd == -1) 4116 if (w->wd == wd || wd == -1)
2678 { 4117 {
2679 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 4118 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2680 { 4119 {
2681 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4120 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2682 w->wd = -1; 4121 w->wd = -1;
2683 infy_add (EV_A_ w); /* re-add, no matter what */ 4122 infy_add (EV_A_ w); /* re-add, no matter what */
2684 } 4123 }
2685 4124
2686 stat_timer_cb (EV_A_ &w->timer, 0); 4125 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2691 4130
2692static void 4131static void
2693infy_cb (EV_P_ ev_io *w, int revents) 4132infy_cb (EV_P_ ev_io *w, int revents)
2694{ 4133{
2695 char buf [EV_INOTIFY_BUFSIZE]; 4134 char buf [EV_INOTIFY_BUFSIZE];
2696 struct inotify_event *ev = (struct inotify_event *)buf;
2697 int ofs; 4135 int ofs;
2698 int len = read (fs_fd, buf, sizeof (buf)); 4136 int len = read (fs_fd, buf, sizeof (buf));
2699 4137
2700 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 4138 for (ofs = 0; ofs < len; )
4139 {
4140 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2701 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4141 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4142 ofs += sizeof (struct inotify_event) + ev->len;
4143 }
2702} 4144}
2703 4145
2704inline_size void 4146inline_size void ecb_cold
2705check_2625 (EV_P) 4147ev_check_2625 (EV_P)
2706{ 4148{
2707 /* kernels < 2.6.25 are borked 4149 /* kernels < 2.6.25 are borked
2708 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4150 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2709 */ 4151 */
2710 struct utsname buf; 4152 if (ev_linux_version () < 0x020619)
2711 int major, minor, micro;
2712
2713 if (uname (&buf))
2714 return; 4153 return;
2715 4154
2716 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2717 return;
2718
2719 if (major < 2
2720 || (major == 2 && minor < 6)
2721 || (major == 2 && minor == 6 && micro < 25))
2722 return;
2723
2724 fs_2625 = 1; 4155 fs_2625 = 1;
4156}
4157
4158inline_size int
4159infy_newfd (void)
4160{
4161#if defined IN_CLOEXEC && defined IN_NONBLOCK
4162 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
4163 if (fd >= 0)
4164 return fd;
4165#endif
4166 return inotify_init ();
2725} 4167}
2726 4168
2727inline_size void 4169inline_size void
2728infy_init (EV_P) 4170infy_init (EV_P)
2729{ 4171{
2730 if (fs_fd != -2) 4172 if (fs_fd != -2)
2731 return; 4173 return;
2732 4174
2733 fs_fd = -1; 4175 fs_fd = -1;
2734 4176
2735 check_2625 (EV_A); 4177 ev_check_2625 (EV_A);
2736 4178
2737 fs_fd = inotify_init (); 4179 fs_fd = infy_newfd ();
2738 4180
2739 if (fs_fd >= 0) 4181 if (fs_fd >= 0)
2740 { 4182 {
4183 fd_intern (fs_fd);
2741 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 4184 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2742 ev_set_priority (&fs_w, EV_MAXPRI); 4185 ev_set_priority (&fs_w, EV_MAXPRI);
2743 ev_io_start (EV_A_ &fs_w); 4186 ev_io_start (EV_A_ &fs_w);
4187 ev_unref (EV_A);
2744 } 4188 }
2745} 4189}
2746 4190
2747inline_size void 4191inline_size void
2748infy_fork (EV_P) 4192infy_fork (EV_P)
… …
2750 int slot; 4194 int slot;
2751 4195
2752 if (fs_fd < 0) 4196 if (fs_fd < 0)
2753 return; 4197 return;
2754 4198
4199 ev_ref (EV_A);
4200 ev_io_stop (EV_A_ &fs_w);
2755 close (fs_fd); 4201 close (fs_fd);
2756 fs_fd = inotify_init (); 4202 fs_fd = infy_newfd ();
2757 4203
4204 if (fs_fd >= 0)
4205 {
4206 fd_intern (fs_fd);
4207 ev_io_set (&fs_w, fs_fd, EV_READ);
4208 ev_io_start (EV_A_ &fs_w);
4209 ev_unref (EV_A);
4210 }
4211
2758 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4212 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2759 { 4213 {
2760 WL w_ = fs_hash [slot].head; 4214 WL w_ = fs_hash [slot].head;
2761 fs_hash [slot].head = 0; 4215 fs_hash [slot].head = 0;
2762 4216
2763 while (w_) 4217 while (w_)
… …
2768 w->wd = -1; 4222 w->wd = -1;
2769 4223
2770 if (fs_fd >= 0) 4224 if (fs_fd >= 0)
2771 infy_add (EV_A_ w); /* re-add, no matter what */ 4225 infy_add (EV_A_ w); /* re-add, no matter what */
2772 else 4226 else
4227 {
4228 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
4229 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2773 ev_timer_again (EV_A_ &w->timer); 4230 ev_timer_again (EV_A_ &w->timer);
4231 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4232 }
2774 } 4233 }
2775 } 4234 }
2776} 4235}
2777 4236
2778#endif 4237#endif
… …
2782#else 4241#else
2783# define EV_LSTAT(p,b) lstat (p, b) 4242# define EV_LSTAT(p,b) lstat (p, b)
2784#endif 4243#endif
2785 4244
2786void 4245void
2787ev_stat_stat (EV_P_ ev_stat *w) 4246ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2788{ 4247{
2789 if (lstat (w->path, &w->attr) < 0) 4248 if (lstat (w->path, &w->attr) < 0)
2790 w->attr.st_nlink = 0; 4249 w->attr.st_nlink = 0;
2791 else if (!w->attr.st_nlink) 4250 else if (!w->attr.st_nlink)
2792 w->attr.st_nlink = 1; 4251 w->attr.st_nlink = 1;
… …
2795static void noinline 4254static void noinline
2796stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4255stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2797{ 4256{
2798 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4257 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2799 4258
2800 /* we copy this here each the time so that */ 4259 ev_statdata prev = w->attr;
2801 /* prev has the old value when the callback gets invoked */
2802 w->prev = w->attr;
2803 ev_stat_stat (EV_A_ w); 4260 ev_stat_stat (EV_A_ w);
2804 4261
2805 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 4262 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2806 if ( 4263 if (
2807 w->prev.st_dev != w->attr.st_dev 4264 prev.st_dev != w->attr.st_dev
2808 || w->prev.st_ino != w->attr.st_ino 4265 || prev.st_ino != w->attr.st_ino
2809 || w->prev.st_mode != w->attr.st_mode 4266 || prev.st_mode != w->attr.st_mode
2810 || w->prev.st_nlink != w->attr.st_nlink 4267 || prev.st_nlink != w->attr.st_nlink
2811 || w->prev.st_uid != w->attr.st_uid 4268 || prev.st_uid != w->attr.st_uid
2812 || w->prev.st_gid != w->attr.st_gid 4269 || prev.st_gid != w->attr.st_gid
2813 || w->prev.st_rdev != w->attr.st_rdev 4270 || prev.st_rdev != w->attr.st_rdev
2814 || w->prev.st_size != w->attr.st_size 4271 || prev.st_size != w->attr.st_size
2815 || w->prev.st_atime != w->attr.st_atime 4272 || prev.st_atime != w->attr.st_atime
2816 || w->prev.st_mtime != w->attr.st_mtime 4273 || prev.st_mtime != w->attr.st_mtime
2817 || w->prev.st_ctime != w->attr.st_ctime 4274 || prev.st_ctime != w->attr.st_ctime
2818 ) { 4275 ) {
4276 /* we only update w->prev on actual differences */
4277 /* in case we test more often than invoke the callback, */
4278 /* to ensure that prev is always different to attr */
4279 w->prev = prev;
4280
2819 #if EV_USE_INOTIFY 4281 #if EV_USE_INOTIFY
2820 if (fs_fd >= 0) 4282 if (fs_fd >= 0)
2821 { 4283 {
2822 infy_del (EV_A_ w); 4284 infy_del (EV_A_ w);
2823 infy_add (EV_A_ w); 4285 infy_add (EV_A_ w);
… …
2828 ev_feed_event (EV_A_ w, EV_STAT); 4290 ev_feed_event (EV_A_ w, EV_STAT);
2829 } 4291 }
2830} 4292}
2831 4293
2832void 4294void
2833ev_stat_start (EV_P_ ev_stat *w) 4295ev_stat_start (EV_P_ ev_stat *w) EV_THROW
2834{ 4296{
2835 if (expect_false (ev_is_active (w))) 4297 if (expect_false (ev_is_active (w)))
2836 return; 4298 return;
2837 4299
2838 ev_stat_stat (EV_A_ w); 4300 ev_stat_stat (EV_A_ w);
… …
2848 4310
2849 if (fs_fd >= 0) 4311 if (fs_fd >= 0)
2850 infy_add (EV_A_ w); 4312 infy_add (EV_A_ w);
2851 else 4313 else
2852#endif 4314#endif
4315 {
2853 ev_timer_again (EV_A_ &w->timer); 4316 ev_timer_again (EV_A_ &w->timer);
4317 ev_unref (EV_A);
4318 }
2854 4319
2855 ev_start (EV_A_ (W)w, 1); 4320 ev_start (EV_A_ (W)w, 1);
2856 4321
2857 EV_FREQUENT_CHECK; 4322 EV_FREQUENT_CHECK;
2858} 4323}
2859 4324
2860void 4325void
2861ev_stat_stop (EV_P_ ev_stat *w) 4326ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
2862{ 4327{
2863 clear_pending (EV_A_ (W)w); 4328 clear_pending (EV_A_ (W)w);
2864 if (expect_false (!ev_is_active (w))) 4329 if (expect_false (!ev_is_active (w)))
2865 return; 4330 return;
2866 4331
2867 EV_FREQUENT_CHECK; 4332 EV_FREQUENT_CHECK;
2868 4333
2869#if EV_USE_INOTIFY 4334#if EV_USE_INOTIFY
2870 infy_del (EV_A_ w); 4335 infy_del (EV_A_ w);
2871#endif 4336#endif
4337
4338 if (ev_is_active (&w->timer))
4339 {
4340 ev_ref (EV_A);
2872 ev_timer_stop (EV_A_ &w->timer); 4341 ev_timer_stop (EV_A_ &w->timer);
4342 }
2873 4343
2874 ev_stop (EV_A_ (W)w); 4344 ev_stop (EV_A_ (W)w);
2875 4345
2876 EV_FREQUENT_CHECK; 4346 EV_FREQUENT_CHECK;
2877} 4347}
2878#endif 4348#endif
2879 4349
2880#if EV_IDLE_ENABLE 4350#if EV_IDLE_ENABLE
2881void 4351void
2882ev_idle_start (EV_P_ ev_idle *w) 4352ev_idle_start (EV_P_ ev_idle *w) EV_THROW
2883{ 4353{
2884 if (expect_false (ev_is_active (w))) 4354 if (expect_false (ev_is_active (w)))
2885 return; 4355 return;
2886 4356
2887 pri_adjust (EV_A_ (W)w); 4357 pri_adjust (EV_A_ (W)w);
… …
2900 4370
2901 EV_FREQUENT_CHECK; 4371 EV_FREQUENT_CHECK;
2902} 4372}
2903 4373
2904void 4374void
2905ev_idle_stop (EV_P_ ev_idle *w) 4375ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
2906{ 4376{
2907 clear_pending (EV_A_ (W)w); 4377 clear_pending (EV_A_ (W)w);
2908 if (expect_false (!ev_is_active (w))) 4378 if (expect_false (!ev_is_active (w)))
2909 return; 4379 return;
2910 4380
… …
2922 4392
2923 EV_FREQUENT_CHECK; 4393 EV_FREQUENT_CHECK;
2924} 4394}
2925#endif 4395#endif
2926 4396
4397#if EV_PREPARE_ENABLE
2927void 4398void
2928ev_prepare_start (EV_P_ ev_prepare *w) 4399ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
2929{ 4400{
2930 if (expect_false (ev_is_active (w))) 4401 if (expect_false (ev_is_active (w)))
2931 return; 4402 return;
2932 4403
2933 EV_FREQUENT_CHECK; 4404 EV_FREQUENT_CHECK;
… …
2938 4409
2939 EV_FREQUENT_CHECK; 4410 EV_FREQUENT_CHECK;
2940} 4411}
2941 4412
2942void 4413void
2943ev_prepare_stop (EV_P_ ev_prepare *w) 4414ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
2944{ 4415{
2945 clear_pending (EV_A_ (W)w); 4416 clear_pending (EV_A_ (W)w);
2946 if (expect_false (!ev_is_active (w))) 4417 if (expect_false (!ev_is_active (w)))
2947 return; 4418 return;
2948 4419
… …
2957 4428
2958 ev_stop (EV_A_ (W)w); 4429 ev_stop (EV_A_ (W)w);
2959 4430
2960 EV_FREQUENT_CHECK; 4431 EV_FREQUENT_CHECK;
2961} 4432}
4433#endif
2962 4434
4435#if EV_CHECK_ENABLE
2963void 4436void
2964ev_check_start (EV_P_ ev_check *w) 4437ev_check_start (EV_P_ ev_check *w) EV_THROW
2965{ 4438{
2966 if (expect_false (ev_is_active (w))) 4439 if (expect_false (ev_is_active (w)))
2967 return; 4440 return;
2968 4441
2969 EV_FREQUENT_CHECK; 4442 EV_FREQUENT_CHECK;
… …
2974 4447
2975 EV_FREQUENT_CHECK; 4448 EV_FREQUENT_CHECK;
2976} 4449}
2977 4450
2978void 4451void
2979ev_check_stop (EV_P_ ev_check *w) 4452ev_check_stop (EV_P_ ev_check *w) EV_THROW
2980{ 4453{
2981 clear_pending (EV_A_ (W)w); 4454 clear_pending (EV_A_ (W)w);
2982 if (expect_false (!ev_is_active (w))) 4455 if (expect_false (!ev_is_active (w)))
2983 return; 4456 return;
2984 4457
… …
2993 4466
2994 ev_stop (EV_A_ (W)w); 4467 ev_stop (EV_A_ (W)w);
2995 4468
2996 EV_FREQUENT_CHECK; 4469 EV_FREQUENT_CHECK;
2997} 4470}
4471#endif
2998 4472
2999#if EV_EMBED_ENABLE 4473#if EV_EMBED_ENABLE
3000void noinline 4474void noinline
3001ev_embed_sweep (EV_P_ ev_embed *w) 4475ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3002{ 4476{
3003 ev_loop (w->other, EVLOOP_NONBLOCK); 4477 ev_run (w->other, EVRUN_NOWAIT);
3004} 4478}
3005 4479
3006static void 4480static void
3007embed_io_cb (EV_P_ ev_io *io, int revents) 4481embed_io_cb (EV_P_ ev_io *io, int revents)
3008{ 4482{
3009 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4483 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3010 4484
3011 if (ev_cb (w)) 4485 if (ev_cb (w))
3012 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4486 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3013 else 4487 else
3014 ev_loop (w->other, EVLOOP_NONBLOCK); 4488 ev_run (w->other, EVRUN_NOWAIT);
3015} 4489}
3016 4490
3017static void 4491static void
3018embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4492embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3019{ 4493{
3020 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4494 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3021 4495
3022 { 4496 {
3023 struct ev_loop *loop = w->other; 4497 EV_P = w->other;
3024 4498
3025 while (fdchangecnt) 4499 while (fdchangecnt)
3026 { 4500 {
3027 fd_reify (EV_A); 4501 fd_reify (EV_A);
3028 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4502 ev_run (EV_A_ EVRUN_NOWAIT);
3029 } 4503 }
3030 } 4504 }
3031} 4505}
3032 4506
3033static void 4507static void
… …
3036 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4510 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3037 4511
3038 ev_embed_stop (EV_A_ w); 4512 ev_embed_stop (EV_A_ w);
3039 4513
3040 { 4514 {
3041 struct ev_loop *loop = w->other; 4515 EV_P = w->other;
3042 4516
3043 ev_loop_fork (EV_A); 4517 ev_loop_fork (EV_A);
3044 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4518 ev_run (EV_A_ EVRUN_NOWAIT);
3045 } 4519 }
3046 4520
3047 ev_embed_start (EV_A_ w); 4521 ev_embed_start (EV_A_ w);
3048} 4522}
3049 4523
… …
3054 ev_idle_stop (EV_A_ idle); 4528 ev_idle_stop (EV_A_ idle);
3055} 4529}
3056#endif 4530#endif
3057 4531
3058void 4532void
3059ev_embed_start (EV_P_ ev_embed *w) 4533ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3060{ 4534{
3061 if (expect_false (ev_is_active (w))) 4535 if (expect_false (ev_is_active (w)))
3062 return; 4536 return;
3063 4537
3064 { 4538 {
3065 struct ev_loop *loop = w->other; 4539 EV_P = w->other;
3066 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4540 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3067 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4541 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3068 } 4542 }
3069 4543
3070 EV_FREQUENT_CHECK; 4544 EV_FREQUENT_CHECK;
… …
3085 4559
3086 EV_FREQUENT_CHECK; 4560 EV_FREQUENT_CHECK;
3087} 4561}
3088 4562
3089void 4563void
3090ev_embed_stop (EV_P_ ev_embed *w) 4564ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3091{ 4565{
3092 clear_pending (EV_A_ (W)w); 4566 clear_pending (EV_A_ (W)w);
3093 if (expect_false (!ev_is_active (w))) 4567 if (expect_false (!ev_is_active (w)))
3094 return; 4568 return;
3095 4569
… …
3097 4571
3098 ev_io_stop (EV_A_ &w->io); 4572 ev_io_stop (EV_A_ &w->io);
3099 ev_prepare_stop (EV_A_ &w->prepare); 4573 ev_prepare_stop (EV_A_ &w->prepare);
3100 ev_fork_stop (EV_A_ &w->fork); 4574 ev_fork_stop (EV_A_ &w->fork);
3101 4575
4576 ev_stop (EV_A_ (W)w);
4577
3102 EV_FREQUENT_CHECK; 4578 EV_FREQUENT_CHECK;
3103} 4579}
3104#endif 4580#endif
3105 4581
3106#if EV_FORK_ENABLE 4582#if EV_FORK_ENABLE
3107void 4583void
3108ev_fork_start (EV_P_ ev_fork *w) 4584ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3109{ 4585{
3110 if (expect_false (ev_is_active (w))) 4586 if (expect_false (ev_is_active (w)))
3111 return; 4587 return;
3112 4588
3113 EV_FREQUENT_CHECK; 4589 EV_FREQUENT_CHECK;
… …
3118 4594
3119 EV_FREQUENT_CHECK; 4595 EV_FREQUENT_CHECK;
3120} 4596}
3121 4597
3122void 4598void
3123ev_fork_stop (EV_P_ ev_fork *w) 4599ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3124{ 4600{
3125 clear_pending (EV_A_ (W)w); 4601 clear_pending (EV_A_ (W)w);
3126 if (expect_false (!ev_is_active (w))) 4602 if (expect_false (!ev_is_active (w)))
3127 return; 4603 return;
3128 4604
… …
3139 4615
3140 EV_FREQUENT_CHECK; 4616 EV_FREQUENT_CHECK;
3141} 4617}
3142#endif 4618#endif
3143 4619
4620#if EV_CLEANUP_ENABLE
4621void
4622ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4623{
4624 if (expect_false (ev_is_active (w)))
4625 return;
4626
4627 EV_FREQUENT_CHECK;
4628
4629 ev_start (EV_A_ (W)w, ++cleanupcnt);
4630 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4631 cleanups [cleanupcnt - 1] = w;
4632
4633 /* cleanup watchers should never keep a refcount on the loop */
4634 ev_unref (EV_A);
4635 EV_FREQUENT_CHECK;
4636}
4637
4638void
4639ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4640{
4641 clear_pending (EV_A_ (W)w);
4642 if (expect_false (!ev_is_active (w)))
4643 return;
4644
4645 EV_FREQUENT_CHECK;
4646 ev_ref (EV_A);
4647
4648 {
4649 int active = ev_active (w);
4650
4651 cleanups [active - 1] = cleanups [--cleanupcnt];
4652 ev_active (cleanups [active - 1]) = active;
4653 }
4654
4655 ev_stop (EV_A_ (W)w);
4656
4657 EV_FREQUENT_CHECK;
4658}
4659#endif
4660
3144#if EV_ASYNC_ENABLE 4661#if EV_ASYNC_ENABLE
3145void 4662void
3146ev_async_start (EV_P_ ev_async *w) 4663ev_async_start (EV_P_ ev_async *w) EV_THROW
3147{ 4664{
3148 if (expect_false (ev_is_active (w))) 4665 if (expect_false (ev_is_active (w)))
3149 return; 4666 return;
4667
4668 w->sent = 0;
3150 4669
3151 evpipe_init (EV_A); 4670 evpipe_init (EV_A);
3152 4671
3153 EV_FREQUENT_CHECK; 4672 EV_FREQUENT_CHECK;
3154 4673
… …
3158 4677
3159 EV_FREQUENT_CHECK; 4678 EV_FREQUENT_CHECK;
3160} 4679}
3161 4680
3162void 4681void
3163ev_async_stop (EV_P_ ev_async *w) 4682ev_async_stop (EV_P_ ev_async *w) EV_THROW
3164{ 4683{
3165 clear_pending (EV_A_ (W)w); 4684 clear_pending (EV_A_ (W)w);
3166 if (expect_false (!ev_is_active (w))) 4685 if (expect_false (!ev_is_active (w)))
3167 return; 4686 return;
3168 4687
… …
3179 4698
3180 EV_FREQUENT_CHECK; 4699 EV_FREQUENT_CHECK;
3181} 4700}
3182 4701
3183void 4702void
3184ev_async_send (EV_P_ ev_async *w) 4703ev_async_send (EV_P_ ev_async *w) EV_THROW
3185{ 4704{
3186 w->sent = 1; 4705 w->sent = 1;
3187 evpipe_write (EV_A_ &gotasync); 4706 evpipe_write (EV_A_ &async_pending);
3188} 4707}
3189#endif 4708#endif
3190 4709
3191/*****************************************************************************/ 4710/*****************************************************************************/
3192 4711
… …
3226 4745
3227 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4746 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3228} 4747}
3229 4748
3230void 4749void
3231ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4750ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3232{ 4751{
3233 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4752 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3234 4753
3235 if (expect_false (!once)) 4754 if (expect_false (!once))
3236 { 4755 {
3237 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4756 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3238 return; 4757 return;
3239 } 4758 }
3240 4759
3241 once->cb = cb; 4760 once->cb = cb;
3242 once->arg = arg; 4761 once->arg = arg;
… …
3257} 4776}
3258 4777
3259/*****************************************************************************/ 4778/*****************************************************************************/
3260 4779
3261#if EV_WALK_ENABLE 4780#if EV_WALK_ENABLE
3262void 4781void ecb_cold
3263ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4782ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3264{ 4783{
3265 int i, j; 4784 int i, j;
3266 ev_watcher_list *wl, *wn; 4785 ev_watcher_list *wl, *wn;
3267 4786
3268 if (types & (EV_IO | EV_EMBED)) 4787 if (types & (EV_IO | EV_EMBED))
… …
3311 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4830 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3312#endif 4831#endif
3313 4832
3314#if EV_IDLE_ENABLE 4833#if EV_IDLE_ENABLE
3315 if (types & EV_IDLE) 4834 if (types & EV_IDLE)
3316 for (j = NUMPRI; i--; ) 4835 for (j = NUMPRI; j--; )
3317 for (i = idlecnt [j]; i--; ) 4836 for (i = idlecnt [j]; i--; )
3318 cb (EV_A_ EV_IDLE, idles [j][i]); 4837 cb (EV_A_ EV_IDLE, idles [j][i]);
3319#endif 4838#endif
3320 4839
3321#if EV_FORK_ENABLE 4840#if EV_FORK_ENABLE
… …
3329 if (types & EV_ASYNC) 4848 if (types & EV_ASYNC)
3330 for (i = asynccnt; i--; ) 4849 for (i = asynccnt; i--; )
3331 cb (EV_A_ EV_ASYNC, asyncs [i]); 4850 cb (EV_A_ EV_ASYNC, asyncs [i]);
3332#endif 4851#endif
3333 4852
4853#if EV_PREPARE_ENABLE
3334 if (types & EV_PREPARE) 4854 if (types & EV_PREPARE)
3335 for (i = preparecnt; i--; ) 4855 for (i = preparecnt; i--; )
3336#if EV_EMBED_ENABLE 4856# if EV_EMBED_ENABLE
3337 if (ev_cb (prepares [i]) != embed_prepare_cb) 4857 if (ev_cb (prepares [i]) != embed_prepare_cb)
3338#endif 4858# endif
3339 cb (EV_A_ EV_PREPARE, prepares [i]); 4859 cb (EV_A_ EV_PREPARE, prepares [i]);
4860#endif
3340 4861
4862#if EV_CHECK_ENABLE
3341 if (types & EV_CHECK) 4863 if (types & EV_CHECK)
3342 for (i = checkcnt; i--; ) 4864 for (i = checkcnt; i--; )
3343 cb (EV_A_ EV_CHECK, checks [i]); 4865 cb (EV_A_ EV_CHECK, checks [i]);
4866#endif
3344 4867
4868#if EV_SIGNAL_ENABLE
3345 if (types & EV_SIGNAL) 4869 if (types & EV_SIGNAL)
3346 for (i = 0; i < signalmax; ++i) 4870 for (i = 0; i < EV_NSIG - 1; ++i)
3347 for (wl = signals [i].head; wl; ) 4871 for (wl = signals [i].head; wl; )
3348 { 4872 {
3349 wn = wl->next; 4873 wn = wl->next;
3350 cb (EV_A_ EV_SIGNAL, wl); 4874 cb (EV_A_ EV_SIGNAL, wl);
3351 wl = wn; 4875 wl = wn;
3352 } 4876 }
4877#endif
3353 4878
4879#if EV_CHILD_ENABLE
3354 if (types & EV_CHILD) 4880 if (types & EV_CHILD)
3355 for (i = EV_PID_HASHSIZE; i--; ) 4881 for (i = (EV_PID_HASHSIZE); i--; )
3356 for (wl = childs [i]; wl; ) 4882 for (wl = childs [i]; wl; )
3357 { 4883 {
3358 wn = wl->next; 4884 wn = wl->next;
3359 cb (EV_A_ EV_CHILD, wl); 4885 cb (EV_A_ EV_CHILD, wl);
3360 wl = wn; 4886 wl = wn;
3361 } 4887 }
4888#endif
3362/* EV_STAT 0x00001000 /* stat data changed */ 4889/* EV_STAT 0x00001000 /* stat data changed */
3363/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4890/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3364} 4891}
3365#endif 4892#endif
3366 4893
3367#if EV_MULTIPLICITY 4894#if EV_MULTIPLICITY
3368 #include "ev_wrap.h" 4895 #include "ev_wrap.h"
3369#endif 4896#endif
3370 4897
3371#ifdef __cplusplus
3372}
3373#endif
3374

Diff Legend

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