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Comparing libev/ev.c (file contents):
Revision 1.300 by root, Tue Jul 14 20:31:21 2009 UTC vs.
Revision 1.475 by sf-exg, Wed Apr 1 06:57:41 2015 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 (©) 2009-2015 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 0x00010004
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#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
572#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
573
574/* work around x32 idiocy by defining proper macros */
575#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
576 #if _ILP32
577 #define ECB_AMD64_X32 1
578 #else
579 #define ECB_AMD64 1
384#endif 580 #endif
581#endif
385 582
583/* many compilers define _GNUC_ to some versions but then only implement
584 * what their idiot authors think are the "more important" extensions,
585 * causing enormous grief in return for some better fake benchmark numbers.
586 * or so.
587 * we try to detect these and simply assume they are not gcc - if they have
588 * an issue with that they should have done it right in the first place.
589 */
590#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
591 #define ECB_GCC_VERSION(major,minor) 0
592#else
593 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
594#endif
595
596#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
597
598#if __clang__ && defined __has_builtin
599 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
600#else
601 #define ECB_CLANG_BUILTIN(x) 0
602#endif
603
604#if __clang__ && defined __has_extension
605 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
606#else
607 #define ECB_CLANG_EXTENSION(x) 0
608#endif
609
610#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L)
612
613#if ECB_CPP
614 #define ECB_C 0
615 #define ECB_STDC_VERSION 0
616#else
617 #define ECB_C 1
618 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif
620
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
623
624#if ECB_CPP
625 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END }
628#else
629 #define ECB_EXTERN_C extern
630 #define ECB_EXTERN_C_BEG
631 #define ECB_EXTERN_C_END
632#endif
633
634/*****************************************************************************/
635
636/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
637/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
638
639#if ECB_NO_THREADS
640 #define ECB_NO_SMP 1
641#endif
642
643#if ECB_NO_SMP
644 #define ECB_MEMORY_FENCE do { } while (0)
645#endif
646
647#ifndef ECB_MEMORY_FENCE
648 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
649 #if __i386 || __i386__
650 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
651 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
652 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
653 #elif ECB_GCC_AMD64
654 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
655 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
656 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
657 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
658 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
659 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
660 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
662 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
663 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
665 #elif __aarch64__
666 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
667 #elif (__sparc || __sparc__) && !__sparcv8
668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
671 #elif defined __s390__ || defined __s390x__
672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
673 #elif defined __mips__
674 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
675 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
676 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
677 #elif defined __alpha__
678 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
679 #elif defined __hppa__
680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
681 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
682 #elif defined __ia64__
683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
684 #elif defined __m68k__
685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
686 #elif defined __m88k__
687 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
688 #elif defined __sh__
689 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
690 #endif
691 #endif
692#endif
693
694#ifndef ECB_MEMORY_FENCE
695 #if ECB_GCC_VERSION(4,7)
696 /* see comment below (stdatomic.h) about the C11 memory model. */
697 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
698 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
699 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
700
701 #elif ECB_CLANG_EXTENSION(c_atomic)
702 /* see comment below (stdatomic.h) about the C11 memory model. */
703 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
704 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
705 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
706
707 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
708 #define ECB_MEMORY_FENCE __sync_synchronize ()
709 #elif _MSC_VER >= 1500 /* VC++ 2008 */
710 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
711 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
712 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
713 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
714 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
715 #elif _MSC_VER >= 1400 /* VC++ 2005 */
716 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
717 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
718 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
719 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
720 #elif defined _WIN32
721 #include <WinNT.h>
722 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
723 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
724 #include <mbarrier.h>
725 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
726 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
727 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
728 #elif __xlC__
729 #define ECB_MEMORY_FENCE __sync ()
730 #endif
731#endif
732
733#ifndef ECB_MEMORY_FENCE
734 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
735 /* we assume that these memory fences work on all variables/all memory accesses, */
736 /* not just C11 atomics and atomic accesses */
737 #include <stdatomic.h>
738 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
739 /* any fence other than seq_cst, which isn't very efficient for us. */
740 /* Why that is, we don't know - either the C11 memory model is quite useless */
741 /* for most usages, or gcc and clang have a bug */
742 /* I *currently* lean towards the latter, and inefficiently implement */
743 /* all three of ecb's fences as a seq_cst fence */
744 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
745 /* for all __atomic_thread_fence's except seq_cst */
746 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
747 #endif
748#endif
749
750#ifndef ECB_MEMORY_FENCE
751 #if !ECB_AVOID_PTHREADS
752 /*
753 * if you get undefined symbol references to pthread_mutex_lock,
754 * or failure to find pthread.h, then you should implement
755 * the ECB_MEMORY_FENCE operations for your cpu/compiler
756 * OR provide pthread.h and link against the posix thread library
757 * of your system.
758 */
759 #include <pthread.h>
760 #define ECB_NEEDS_PTHREADS 1
761 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
762
763 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
764 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
765 #endif
766#endif
767
768#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
769 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
770#endif
771
772#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
773 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
774#endif
775
776/*****************************************************************************/
777
778#if ECB_CPP
779 #define ecb_inline static inline
780#elif ECB_GCC_VERSION(2,5)
781 #define ecb_inline static __inline__
782#elif ECB_C99
783 #define ecb_inline static inline
784#else
785 #define ecb_inline static
786#endif
787
788#if ECB_GCC_VERSION(3,3)
789 #define ecb_restrict __restrict__
790#elif ECB_C99
791 #define ecb_restrict restrict
792#else
793 #define ecb_restrict
794#endif
795
796typedef int ecb_bool;
797
798#define ECB_CONCAT_(a, b) a ## b
799#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
800#define ECB_STRINGIFY_(a) # a
801#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
802#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
803
804#define ecb_function_ ecb_inline
805
806#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
807 #define ecb_attribute(attrlist) __attribute__ (attrlist)
808#else
809 #define ecb_attribute(attrlist)
810#endif
811
812#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
813 #define ecb_is_constant(expr) __builtin_constant_p (expr)
814#else
815 /* possible C11 impl for integral types
816 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
817 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
818
819 #define ecb_is_constant(expr) 0
820#endif
821
822#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
823 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
824#else
825 #define ecb_expect(expr,value) (expr)
826#endif
827
828#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
829 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
830#else
831 #define ecb_prefetch(addr,rw,locality)
832#endif
833
834/* no emulation for ecb_decltype */
835#if ECB_CPP11
836 // older implementations might have problems with decltype(x)::type, work around it
837 template<class T> struct ecb_decltype_t { typedef T type; };
838 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
839#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
840 #define ecb_decltype(x) __typeof__ (x)
841#endif
842
843#if _MSC_VER >= 1300
844 #define ecb_deprecated __declspec (deprecated)
845#else
846 #define ecb_deprecated ecb_attribute ((__deprecated__))
847#endif
848
849#if __MSC_VER >= 1500
850 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
851#elif ECB_GCC_VERSION(4,5)
852 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
853#else
854 #define ecb_deprecated_message(msg) ecb_deprecated
855#endif
856
857#if _MSC_VER >= 1400
858 #define ecb_noinline __declspec (noinline)
859#else
860 #define ecb_noinline ecb_attribute ((__noinline__))
861#endif
862
863#define ecb_unused ecb_attribute ((__unused__))
864#define ecb_const ecb_attribute ((__const__))
865#define ecb_pure ecb_attribute ((__pure__))
866
867#if ECB_C11 || __IBMC_NORETURN
868 /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */
869 #define ecb_noreturn _Noreturn
870#elif ECB_CPP11
871 #define ecb_noreturn [[noreturn]]
872#elif _MSC_VER >= 1200
873 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
874 #define ecb_noreturn __declspec (noreturn)
875#else
876 #define ecb_noreturn ecb_attribute ((__noreturn__))
877#endif
878
879#if ECB_GCC_VERSION(4,3)
880 #define ecb_artificial ecb_attribute ((__artificial__))
881 #define ecb_hot ecb_attribute ((__hot__))
882 #define ecb_cold ecb_attribute ((__cold__))
883#else
884 #define ecb_artificial
885 #define ecb_hot
886 #define ecb_cold
887#endif
888
889/* put around conditional expressions if you are very sure that the */
890/* expression is mostly true or mostly false. note that these return */
891/* booleans, not the expression. */
386#define expect_false(expr) expect ((expr) != 0, 0) 892#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 893#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
894/* for compatibility to the rest of the world */
895#define ecb_likely(expr) ecb_expect_true (expr)
896#define ecb_unlikely(expr) ecb_expect_false (expr)
897
898/* count trailing zero bits and count # of one bits */
899#if ECB_GCC_VERSION(3,4) \
900 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
901 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
902 && ECB_CLANG_BUILTIN(__builtin_popcount))
903 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
904 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
905 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
906 #define ecb_ctz32(x) __builtin_ctz (x)
907 #define ecb_ctz64(x) __builtin_ctzll (x)
908 #define ecb_popcount32(x) __builtin_popcount (x)
909 /* no popcountll */
910#else
911 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
912 ecb_function_ ecb_const int
913 ecb_ctz32 (uint32_t x)
914 {
915 int r = 0;
916
917 x &= ~x + 1; /* this isolates the lowest bit */
918
919#if ECB_branchless_on_i386
920 r += !!(x & 0xaaaaaaaa) << 0;
921 r += !!(x & 0xcccccccc) << 1;
922 r += !!(x & 0xf0f0f0f0) << 2;
923 r += !!(x & 0xff00ff00) << 3;
924 r += !!(x & 0xffff0000) << 4;
925#else
926 if (x & 0xaaaaaaaa) r += 1;
927 if (x & 0xcccccccc) r += 2;
928 if (x & 0xf0f0f0f0) r += 4;
929 if (x & 0xff00ff00) r += 8;
930 if (x & 0xffff0000) r += 16;
931#endif
932
933 return r;
934 }
935
936 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
937 ecb_function_ ecb_const int
938 ecb_ctz64 (uint64_t x)
939 {
940 int shift = x & 0xffffffffU ? 0 : 32;
941 return ecb_ctz32 (x >> shift) + shift;
942 }
943
944 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
945 ecb_function_ ecb_const int
946 ecb_popcount32 (uint32_t x)
947 {
948 x -= (x >> 1) & 0x55555555;
949 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
950 x = ((x >> 4) + x) & 0x0f0f0f0f;
951 x *= 0x01010101;
952
953 return x >> 24;
954 }
955
956 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
957 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
958 {
959 int r = 0;
960
961 if (x >> 16) { x >>= 16; r += 16; }
962 if (x >> 8) { x >>= 8; r += 8; }
963 if (x >> 4) { x >>= 4; r += 4; }
964 if (x >> 2) { x >>= 2; r += 2; }
965 if (x >> 1) { r += 1; }
966
967 return r;
968 }
969
970 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
971 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
972 {
973 int r = 0;
974
975 if (x >> 32) { x >>= 32; r += 32; }
976
977 return r + ecb_ld32 (x);
978 }
979#endif
980
981ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
982ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
983ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
984ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
985
986ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
987ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
988{
989 return ( (x * 0x0802U & 0x22110U)
990 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
991}
992
993ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
994ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
995{
996 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
997 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
998 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
999 x = ( x >> 8 ) | ( x << 8);
1000
1001 return x;
1002}
1003
1004ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
1005ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
1006{
1007 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
1008 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
1009 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
1010 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
1011 x = ( x >> 16 ) | ( x << 16);
1012
1013 return x;
1014}
1015
1016/* popcount64 is only available on 64 bit cpus as gcc builtin */
1017/* so for this version we are lazy */
1018ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
1019ecb_function_ ecb_const int
1020ecb_popcount64 (uint64_t x)
1021{
1022 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
1023}
1024
1025ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
1026ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
1027ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
1028ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
1029ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
1030ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
1031ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
1032ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
1033
1034ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
1035ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
1036ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
1037ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
1038ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
1039ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1040ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1041ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1042
1043#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1044 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1045 #define ecb_bswap32(x) __builtin_bswap32 (x)
1046 #define ecb_bswap64(x) __builtin_bswap64 (x)
1047#else
1048 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1049 ecb_function_ ecb_const uint16_t
1050 ecb_bswap16 (uint16_t x)
1051 {
1052 return ecb_rotl16 (x, 8);
1053 }
1054
1055 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1056 ecb_function_ ecb_const uint32_t
1057 ecb_bswap32 (uint32_t x)
1058 {
1059 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1060 }
1061
1062 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1063 ecb_function_ ecb_const uint64_t
1064 ecb_bswap64 (uint64_t x)
1065 {
1066 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1067 }
1068#endif
1069
1070#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1071 #define ecb_unreachable() __builtin_unreachable ()
1072#else
1073 /* this seems to work fine, but gcc always emits a warning for it :/ */
1074 ecb_inline ecb_noreturn void ecb_unreachable (void);
1075 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1076#endif
1077
1078/* try to tell the compiler that some condition is definitely true */
1079#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1080
1081ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
1082ecb_inline ecb_const unsigned char
1083ecb_byteorder_helper (void)
1084{
1085 /* the union code still generates code under pressure in gcc, */
1086 /* but less than using pointers, and always seems to */
1087 /* successfully return a constant. */
1088 /* the reason why we have this horrible preprocessor mess */
1089 /* is to avoid it in all cases, at least on common architectures */
1090 /* or when using a recent enough gcc version (>= 4.6) */
1091#if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64
1092 return 0x44;
1093#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1094 return 0x44;
1095#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1096 return 0x11;
1097#else
1098 union
1099 {
1100 uint32_t i;
1101 uint8_t c;
1102 } u = { 0x11223344 };
1103 return u.c;
1104#endif
1105}
1106
1107ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1108ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1109ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1110ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1111
1112#if ECB_GCC_VERSION(3,0) || ECB_C99
1113 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1114#else
1115 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1116#endif
1117
1118#if ECB_CPP
1119 template<typename T>
1120 static inline T ecb_div_rd (T val, T div)
1121 {
1122 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1123 }
1124 template<typename T>
1125 static inline T ecb_div_ru (T val, T div)
1126 {
1127 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1128 }
1129#else
1130 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1131 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1132#endif
1133
1134#if ecb_cplusplus_does_not_suck
1135 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1136 template<typename T, int N>
1137 static inline int ecb_array_length (const T (&arr)[N])
1138 {
1139 return N;
1140 }
1141#else
1142 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1143#endif
1144
1145/*******************************************************************************/
1146/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1147
1148/* basically, everything uses "ieee pure-endian" floating point numbers */
1149/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1150#if 0 \
1151 || __i386 || __i386__ \
1152 || ECB_GCC_AMD64 \
1153 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1154 || defined __s390__ || defined __s390x__ \
1155 || defined __mips__ \
1156 || defined __alpha__ \
1157 || defined __hppa__ \
1158 || defined __ia64__ \
1159 || defined __m68k__ \
1160 || defined __m88k__ \
1161 || defined __sh__ \
1162 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1163 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1164 || defined __aarch64__
1165 #define ECB_STDFP 1
1166 #include <string.h> /* for memcpy */
1167#else
1168 #define ECB_STDFP 0
1169#endif
1170
1171#ifndef ECB_NO_LIBM
1172
1173 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1174
1175 /* only the oldest of old doesn't have this one. solaris. */
1176 #ifdef INFINITY
1177 #define ECB_INFINITY INFINITY
1178 #else
1179 #define ECB_INFINITY HUGE_VAL
1180 #endif
1181
1182 #ifdef NAN
1183 #define ECB_NAN NAN
1184 #else
1185 #define ECB_NAN ECB_INFINITY
1186 #endif
1187
1188 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1189 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1190 #else
1191 #define ecb_ldexpf(x,e) (float) ldexp ((float) (x), (e))
1192 #endif
1193
1194 /* converts an ieee half/binary16 to a float */
1195 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1196 ecb_function_ ecb_const float
1197 ecb_binary16_to_float (uint16_t x)
1198 {
1199 int e = (x >> 10) & 0x1f;
1200 int m = x & 0x3ff;
1201 float r;
1202
1203 if (!e ) r = ecb_ldexpf (m , -24);
1204 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1205 else if (m ) r = ECB_NAN;
1206 else r = ECB_INFINITY;
1207
1208 return x & 0x8000 ? -r : r;
1209 }
1210
1211 /* convert a float to ieee single/binary32 */
1212 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1213 ecb_function_ ecb_const uint32_t
1214 ecb_float_to_binary32 (float x)
1215 {
1216 uint32_t r;
1217
1218 #if ECB_STDFP
1219 memcpy (&r, &x, 4);
1220 #else
1221 /* slow emulation, works for anything but -0 */
1222 uint32_t m;
1223 int e;
1224
1225 if (x == 0e0f ) return 0x00000000U;
1226 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1227 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1228 if (x != x ) return 0x7fbfffffU;
1229
1230 m = frexpf (x, &e) * 0x1000000U;
1231
1232 r = m & 0x80000000U;
1233
1234 if (r)
1235 m = -m;
1236
1237 if (e <= -126)
1238 {
1239 m &= 0xffffffU;
1240 m >>= (-125 - e);
1241 e = -126;
1242 }
1243
1244 r |= (e + 126) << 23;
1245 r |= m & 0x7fffffU;
1246 #endif
1247
1248 return r;
1249 }
1250
1251 /* converts an ieee single/binary32 to a float */
1252 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1253 ecb_function_ ecb_const float
1254 ecb_binary32_to_float (uint32_t x)
1255 {
1256 float r;
1257
1258 #if ECB_STDFP
1259 memcpy (&r, &x, 4);
1260 #else
1261 /* emulation, only works for normals and subnormals and +0 */
1262 int neg = x >> 31;
1263 int e = (x >> 23) & 0xffU;
1264
1265 x &= 0x7fffffU;
1266
1267 if (e)
1268 x |= 0x800000U;
1269 else
1270 e = 1;
1271
1272 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1273 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1274
1275 r = neg ? -r : r;
1276 #endif
1277
1278 return r;
1279 }
1280
1281 /* convert a double to ieee double/binary64 */
1282 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1283 ecb_function_ ecb_const uint64_t
1284 ecb_double_to_binary64 (double x)
1285 {
1286 uint64_t r;
1287
1288 #if ECB_STDFP
1289 memcpy (&r, &x, 8);
1290 #else
1291 /* slow emulation, works for anything but -0 */
1292 uint64_t m;
1293 int e;
1294
1295 if (x == 0e0 ) return 0x0000000000000000U;
1296 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1297 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1298 if (x != x ) return 0X7ff7ffffffffffffU;
1299
1300 m = frexp (x, &e) * 0x20000000000000U;
1301
1302 r = m & 0x8000000000000000;;
1303
1304 if (r)
1305 m = -m;
1306
1307 if (e <= -1022)
1308 {
1309 m &= 0x1fffffffffffffU;
1310 m >>= (-1021 - e);
1311 e = -1022;
1312 }
1313
1314 r |= ((uint64_t)(e + 1022)) << 52;
1315 r |= m & 0xfffffffffffffU;
1316 #endif
1317
1318 return r;
1319 }
1320
1321 /* converts an ieee double/binary64 to a double */
1322 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1323 ecb_function_ ecb_const double
1324 ecb_binary64_to_double (uint64_t x)
1325 {
1326 double r;
1327
1328 #if ECB_STDFP
1329 memcpy (&r, &x, 8);
1330 #else
1331 /* emulation, only works for normals and subnormals and +0 */
1332 int neg = x >> 63;
1333 int e = (x >> 52) & 0x7ffU;
1334
1335 x &= 0xfffffffffffffU;
1336
1337 if (e)
1338 x |= 0x10000000000000U;
1339 else
1340 e = 1;
1341
1342 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1343 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1344
1345 r = neg ? -r : r;
1346 #endif
1347
1348 return r;
1349 }
1350
1351#endif
1352
1353#endif
1354
1355/* ECB.H END */
1356
1357#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1358/* if your architecture doesn't need memory fences, e.g. because it is
1359 * single-cpu/core, or if you use libev in a project that doesn't use libev
1360 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1361 * libev, in which cases the memory fences become nops.
1362 * alternatively, you can remove this #error and link against libpthread,
1363 * which will then provide the memory fences.
1364 */
1365# error "memory fences not defined for your architecture, please report"
1366#endif
1367
1368#ifndef ECB_MEMORY_FENCE
1369# define ECB_MEMORY_FENCE do { } while (0)
1370# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1371# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1372#endif
1373
1374#define expect_false(cond) ecb_expect_false (cond)
1375#define expect_true(cond) ecb_expect_true (cond)
1376#define noinline ecb_noinline
1377
388#define inline_size static inline 1378#define inline_size ecb_inline
389 1379
390#if EV_MINIMAL 1380#if EV_FEATURE_CODE
1381# define inline_speed ecb_inline
1382#else
391# define inline_speed static noinline 1383# define inline_speed static noinline
392#else
393# define inline_speed static inline
394#endif 1384#endif
395 1385
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1386#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397 1387
398#if EV_MINPRI == EV_MAXPRI 1388#if EV_MINPRI == EV_MAXPRI
… …
411#define ev_active(w) ((W)(w))->active 1401#define ev_active(w) ((W)(w))->active
412#define ev_at(w) ((WT)(w))->at 1402#define ev_at(w) ((WT)(w))->at
413 1403
414#if EV_USE_REALTIME 1404#if EV_USE_REALTIME
415/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1405/* sig_atomic_t is used to avoid per-thread variables or locking but still */
416/* giving it a reasonably high chance of working on typical architetcures */ 1406/* giving it a reasonably high chance of working on typical architectures */
417static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1407static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
418#endif 1408#endif
419 1409
420#if EV_USE_MONOTONIC 1410#if EV_USE_MONOTONIC
421static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1411static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422#endif 1412#endif
423 1413
1414#ifndef EV_FD_TO_WIN32_HANDLE
1415# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
1416#endif
1417#ifndef EV_WIN32_HANDLE_TO_FD
1418# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
1419#endif
1420#ifndef EV_WIN32_CLOSE_FD
1421# define EV_WIN32_CLOSE_FD(fd) close (fd)
1422#endif
1423
424#ifdef _WIN32 1424#ifdef _WIN32
425# include "ev_win32.c" 1425# include "ev_win32.c"
426#endif 1426#endif
427 1427
428/*****************************************************************************/ 1428/*****************************************************************************/
429 1429
1430/* define a suitable floor function (only used by periodics atm) */
1431
1432#if EV_USE_FLOOR
1433# include <math.h>
1434# define ev_floor(v) floor (v)
1435#else
1436
1437#include <float.h>
1438
1439/* a floor() replacement function, should be independent of ev_tstamp type */
1440static ev_tstamp noinline
1441ev_floor (ev_tstamp v)
1442{
1443 /* the choice of shift factor is not terribly important */
1444#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1445 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1446#else
1447 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1448#endif
1449
1450 /* argument too large for an unsigned long? */
1451 if (expect_false (v >= shift))
1452 {
1453 ev_tstamp f;
1454
1455 if (v == v - 1.)
1456 return v; /* very large number */
1457
1458 f = shift * ev_floor (v * (1. / shift));
1459 return f + ev_floor (v - f);
1460 }
1461
1462 /* special treatment for negative args? */
1463 if (expect_false (v < 0.))
1464 {
1465 ev_tstamp f = -ev_floor (-v);
1466
1467 return f - (f == v ? 0 : 1);
1468 }
1469
1470 /* fits into an unsigned long */
1471 return (unsigned long)v;
1472}
1473
1474#endif
1475
1476/*****************************************************************************/
1477
1478#ifdef __linux
1479# include <sys/utsname.h>
1480#endif
1481
1482static unsigned int noinline ecb_cold
1483ev_linux_version (void)
1484{
1485#ifdef __linux
1486 unsigned int v = 0;
1487 struct utsname buf;
1488 int i;
1489 char *p = buf.release;
1490
1491 if (uname (&buf))
1492 return 0;
1493
1494 for (i = 3+1; --i; )
1495 {
1496 unsigned int c = 0;
1497
1498 for (;;)
1499 {
1500 if (*p >= '0' && *p <= '9')
1501 c = c * 10 + *p++ - '0';
1502 else
1503 {
1504 p += *p == '.';
1505 break;
1506 }
1507 }
1508
1509 v = (v << 8) | c;
1510 }
1511
1512 return v;
1513#else
1514 return 0;
1515#endif
1516}
1517
1518/*****************************************************************************/
1519
1520#if EV_AVOID_STDIO
1521static void noinline ecb_cold
1522ev_printerr (const char *msg)
1523{
1524 write (STDERR_FILENO, msg, strlen (msg));
1525}
1526#endif
1527
430static void (*syserr_cb)(const char *msg); 1528static void (*syserr_cb)(const char *msg) EV_THROW;
431 1529
432void 1530void ecb_cold
433ev_set_syserr_cb (void (*cb)(const char *msg)) 1531ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
434{ 1532{
435 syserr_cb = cb; 1533 syserr_cb = cb;
436} 1534}
437 1535
438static void noinline 1536static void noinline ecb_cold
439ev_syserr (const char *msg) 1537ev_syserr (const char *msg)
440{ 1538{
441 if (!msg) 1539 if (!msg)
442 msg = "(libev) system error"; 1540 msg = "(libev) system error";
443 1541
444 if (syserr_cb) 1542 if (syserr_cb)
445 syserr_cb (msg); 1543 syserr_cb (msg);
446 else 1544 else
447 { 1545 {
1546#if EV_AVOID_STDIO
1547 ev_printerr (msg);
1548 ev_printerr (": ");
1549 ev_printerr (strerror (errno));
1550 ev_printerr ("\n");
1551#else
448 perror (msg); 1552 perror (msg);
1553#endif
449 abort (); 1554 abort ();
450 } 1555 }
451} 1556}
452 1557
453static void * 1558static void *
454ev_realloc_emul (void *ptr, long size) 1559ev_realloc_emul (void *ptr, long size) EV_THROW
455{ 1560{
456 /* some systems, notably openbsd and darwin, fail to properly 1561 /* some systems, notably openbsd and darwin, fail to properly
457 * implement realloc (x, 0) (as required by both ansi c-98 and 1562 * implement realloc (x, 0) (as required by both ansi c-89 and
458 * the single unix specification, so work around them here. 1563 * the single unix specification, so work around them here.
1564 * recently, also (at least) fedora and debian started breaking it,
1565 * despite documenting it otherwise.
459 */ 1566 */
460 1567
461 if (size) 1568 if (size)
462 return realloc (ptr, size); 1569 return realloc (ptr, size);
463 1570
464 free (ptr); 1571 free (ptr);
465 return 0; 1572 return 0;
466} 1573}
467 1574
468static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1575static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
469 1576
470void 1577void ecb_cold
471ev_set_allocator (void *(*cb)(void *ptr, long size)) 1578ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
472{ 1579{
473 alloc = cb; 1580 alloc = cb;
474} 1581}
475 1582
476inline_speed void * 1583inline_speed void *
… …
478{ 1585{
479 ptr = alloc (ptr, size); 1586 ptr = alloc (ptr, size);
480 1587
481 if (!ptr && size) 1588 if (!ptr && size)
482 { 1589 {
1590#if EV_AVOID_STDIO
1591 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1592#else
483 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1593 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1594#endif
484 abort (); 1595 abort ();
485 } 1596 }
486 1597
487 return ptr; 1598 return ptr;
488} 1599}
… …
504 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1615 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
505 unsigned char unused; 1616 unsigned char unused;
506#if EV_USE_EPOLL 1617#if EV_USE_EPOLL
507 unsigned int egen; /* generation counter to counter epoll bugs */ 1618 unsigned int egen; /* generation counter to counter epoll bugs */
508#endif 1619#endif
509#if EV_SELECT_IS_WINSOCKET 1620#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
510 SOCKET handle; 1621 SOCKET handle;
1622#endif
1623#if EV_USE_IOCP
1624 OVERLAPPED or, ow;
511#endif 1625#endif
512} ANFD; 1626} ANFD;
513 1627
514/* stores the pending event set for a given watcher */ 1628/* stores the pending event set for a given watcher */
515typedef struct 1629typedef struct
… …
557 #undef VAR 1671 #undef VAR
558 }; 1672 };
559 #include "ev_wrap.h" 1673 #include "ev_wrap.h"
560 1674
561 static struct ev_loop default_loop_struct; 1675 static struct ev_loop default_loop_struct;
562 struct ev_loop *ev_default_loop_ptr; 1676 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
563 1677
564#else 1678#else
565 1679
566 ev_tstamp ev_rt_now; 1680 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
567 #define VAR(name,decl) static decl; 1681 #define VAR(name,decl) static decl;
568 #include "ev_vars.h" 1682 #include "ev_vars.h"
569 #undef VAR 1683 #undef VAR
570 1684
571 static int ev_default_loop_ptr; 1685 static int ev_default_loop_ptr;
572 1686
573#endif 1687#endif
574 1688
575#if EV_MINIMAL < 2 1689#if EV_FEATURE_API
576# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1690# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
577# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1691# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
578# define EV_INVOKE_PENDING invoke_cb (EV_A) 1692# define EV_INVOKE_PENDING invoke_cb (EV_A)
579#else 1693#else
580# define EV_RELEASE_CB (void)0 1694# define EV_RELEASE_CB (void)0
581# define EV_ACQUIRE_CB (void)0 1695# define EV_ACQUIRE_CB (void)0
582# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1696# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
583#endif 1697#endif
584 1698
585#define EVUNLOOP_RECURSE 0x80 1699#define EVBREAK_RECURSE 0x80
586 1700
587/*****************************************************************************/ 1701/*****************************************************************************/
588 1702
589#ifndef EV_HAVE_EV_TIME 1703#ifndef EV_HAVE_EV_TIME
590ev_tstamp 1704ev_tstamp
591ev_time (void) 1705ev_time (void) EV_THROW
592{ 1706{
593#if EV_USE_REALTIME 1707#if EV_USE_REALTIME
594 if (expect_true (have_realtime)) 1708 if (expect_true (have_realtime))
595 { 1709 {
596 struct timespec ts; 1710 struct timespec ts;
… …
620 return ev_time (); 1734 return ev_time ();
621} 1735}
622 1736
623#if EV_MULTIPLICITY 1737#if EV_MULTIPLICITY
624ev_tstamp 1738ev_tstamp
625ev_now (EV_P) 1739ev_now (EV_P) EV_THROW
626{ 1740{
627 return ev_rt_now; 1741 return ev_rt_now;
628} 1742}
629#endif 1743#endif
630 1744
631void 1745void
632ev_sleep (ev_tstamp delay) 1746ev_sleep (ev_tstamp delay) EV_THROW
633{ 1747{
634 if (delay > 0.) 1748 if (delay > 0.)
635 { 1749 {
636#if EV_USE_NANOSLEEP 1750#if EV_USE_NANOSLEEP
637 struct timespec ts; 1751 struct timespec ts;
638 1752
639 ts.tv_sec = (time_t)delay; 1753 EV_TS_SET (ts, delay);
640 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
641
642 nanosleep (&ts, 0); 1754 nanosleep (&ts, 0);
643#elif defined(_WIN32) 1755#elif defined _WIN32
644 Sleep ((unsigned long)(delay * 1e3)); 1756 Sleep ((unsigned long)(delay * 1e3));
645#else 1757#else
646 struct timeval tv; 1758 struct timeval tv;
647 1759
648 tv.tv_sec = (time_t)delay;
649 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
650
651 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1760 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
652 /* somehting not guaranteed by newer posix versions, but guaranteed */ 1761 /* something not guaranteed by newer posix versions, but guaranteed */
653 /* by older ones */ 1762 /* by older ones */
1763 EV_TV_SET (tv, delay);
654 select (0, 0, 0, 0, &tv); 1764 select (0, 0, 0, 0, &tv);
655#endif 1765#endif
656 } 1766 }
657} 1767}
658 1768
659/*****************************************************************************/ 1769/*****************************************************************************/
660 1770
661#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1771#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
662 1772
663/* find a suitable new size for the given array, */ 1773/* find a suitable new size for the given array, */
664/* hopefully by rounding to a ncie-to-malloc size */ 1774/* hopefully by rounding to a nice-to-malloc size */
665inline_size int 1775inline_size int
666array_nextsize (int elem, int cur, int cnt) 1776array_nextsize (int elem, int cur, int cnt)
667{ 1777{
668 int ncur = cur + 1; 1778 int ncur = cur + 1;
669 1779
670 do 1780 do
671 ncur <<= 1; 1781 ncur <<= 1;
672 while (cnt > ncur); 1782 while (cnt > ncur);
673 1783
674 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1784 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
675 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1785 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
676 { 1786 {
677 ncur *= elem; 1787 ncur *= elem;
678 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1788 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
679 ncur = ncur - sizeof (void *) * 4; 1789 ncur = ncur - sizeof (void *) * 4;
… …
681 } 1791 }
682 1792
683 return ncur; 1793 return ncur;
684} 1794}
685 1795
686static noinline void * 1796static void * noinline ecb_cold
687array_realloc (int elem, void *base, int *cur, int cnt) 1797array_realloc (int elem, void *base, int *cur, int cnt)
688{ 1798{
689 *cur = array_nextsize (elem, *cur, cnt); 1799 *cur = array_nextsize (elem, *cur, cnt);
690 return ev_realloc (base, elem * *cur); 1800 return ev_realloc (base, elem * *cur);
691} 1801}
… …
694 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1804 memset ((void *)(base), 0, sizeof (*(base)) * (count))
695 1805
696#define array_needsize(type,base,cur,cnt,init) \ 1806#define array_needsize(type,base,cur,cnt,init) \
697 if (expect_false ((cnt) > (cur))) \ 1807 if (expect_false ((cnt) > (cur))) \
698 { \ 1808 { \
699 int ocur_ = (cur); \ 1809 int ecb_unused ocur_ = (cur); \
700 (base) = (type *)array_realloc \ 1810 (base) = (type *)array_realloc \
701 (sizeof (type), (base), &(cur), (cnt)); \ 1811 (sizeof (type), (base), &(cur), (cnt)); \
702 init ((base) + (ocur_), (cur) - ocur_); \ 1812 init ((base) + (ocur_), (cur) - ocur_); \
703 } 1813 }
704 1814
… …
722pendingcb (EV_P_ ev_prepare *w, int revents) 1832pendingcb (EV_P_ ev_prepare *w, int revents)
723{ 1833{
724} 1834}
725 1835
726void noinline 1836void noinline
727ev_feed_event (EV_P_ void *w, int revents) 1837ev_feed_event (EV_P_ void *w, int revents) EV_THROW
728{ 1838{
729 W w_ = (W)w; 1839 W w_ = (W)w;
730 int pri = ABSPRI (w_); 1840 int pri = ABSPRI (w_);
731 1841
732 if (expect_false (w_->pending)) 1842 if (expect_false (w_->pending))
… …
736 w_->pending = ++pendingcnt [pri]; 1846 w_->pending = ++pendingcnt [pri];
737 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1847 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
738 pendings [pri][w_->pending - 1].w = w_; 1848 pendings [pri][w_->pending - 1].w = w_;
739 pendings [pri][w_->pending - 1].events = revents; 1849 pendings [pri][w_->pending - 1].events = revents;
740 } 1850 }
1851
1852 pendingpri = NUMPRI - 1;
741} 1853}
742 1854
743inline_speed void 1855inline_speed void
744feed_reverse (EV_P_ W w) 1856feed_reverse (EV_P_ W w)
745{ 1857{
… …
765} 1877}
766 1878
767/*****************************************************************************/ 1879/*****************************************************************************/
768 1880
769inline_speed void 1881inline_speed void
770fd_event_nc (EV_P_ int fd, int revents) 1882fd_event_nocheck (EV_P_ int fd, int revents)
771{ 1883{
772 ANFD *anfd = anfds + fd; 1884 ANFD *anfd = anfds + fd;
773 ev_io *w; 1885 ev_io *w;
774 1886
775 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1887 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
787fd_event (EV_P_ int fd, int revents) 1899fd_event (EV_P_ int fd, int revents)
788{ 1900{
789 ANFD *anfd = anfds + fd; 1901 ANFD *anfd = anfds + fd;
790 1902
791 if (expect_true (!anfd->reify)) 1903 if (expect_true (!anfd->reify))
792 fd_event_nc (EV_A_ fd, revents); 1904 fd_event_nocheck (EV_A_ fd, revents);
793} 1905}
794 1906
795void 1907void
796ev_feed_fd_event (EV_P_ int fd, int revents) 1908ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
797{ 1909{
798 if (fd >= 0 && fd < anfdmax) 1910 if (fd >= 0 && fd < anfdmax)
799 fd_event_nc (EV_A_ fd, revents); 1911 fd_event_nocheck (EV_A_ fd, revents);
800} 1912}
801 1913
802/* make sure the external fd watch events are in-sync */ 1914/* make sure the external fd watch events are in-sync */
803/* with the kernel/libev internal state */ 1915/* with the kernel/libev internal state */
804inline_size void 1916inline_size void
805fd_reify (EV_P) 1917fd_reify (EV_P)
806{ 1918{
807 int i; 1919 int i;
808 1920
1921#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1922 for (i = 0; i < fdchangecnt; ++i)
1923 {
1924 int fd = fdchanges [i];
1925 ANFD *anfd = anfds + fd;
1926
1927 if (anfd->reify & EV__IOFDSET && anfd->head)
1928 {
1929 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1930
1931 if (handle != anfd->handle)
1932 {
1933 unsigned long arg;
1934
1935 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1936
1937 /* handle changed, but fd didn't - we need to do it in two steps */
1938 backend_modify (EV_A_ fd, anfd->events, 0);
1939 anfd->events = 0;
1940 anfd->handle = handle;
1941 }
1942 }
1943 }
1944#endif
1945
809 for (i = 0; i < fdchangecnt; ++i) 1946 for (i = 0; i < fdchangecnt; ++i)
810 { 1947 {
811 int fd = fdchanges [i]; 1948 int fd = fdchanges [i];
812 ANFD *anfd = anfds + fd; 1949 ANFD *anfd = anfds + fd;
813 ev_io *w; 1950 ev_io *w;
814 1951
815 unsigned char events = 0; 1952 unsigned char o_events = anfd->events;
1953 unsigned char o_reify = anfd->reify;
816 1954
817 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1955 anfd->reify = 0;
818 events |= (unsigned char)w->events;
819 1956
820#if EV_SELECT_IS_WINSOCKET 1957 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
821 if (events)
822 { 1958 {
823 unsigned long arg; 1959 anfd->events = 0;
824 #ifdef EV_FD_TO_WIN32_HANDLE 1960
825 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1961 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
826 #else 1962 anfd->events |= (unsigned char)w->events;
827 anfd->handle = _get_osfhandle (fd); 1963
828 #endif 1964 if (o_events != anfd->events)
829 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1965 o_reify = EV__IOFDSET; /* actually |= */
830 } 1966 }
831#endif
832 1967
833 { 1968 if (o_reify & EV__IOFDSET)
834 unsigned char o_events = anfd->events;
835 unsigned char o_reify = anfd->reify;
836
837 anfd->reify = 0;
838 anfd->events = events;
839
840 if (o_events != events || o_reify & EV__IOFDSET)
841 backend_modify (EV_A_ fd, o_events, events); 1969 backend_modify (EV_A_ fd, o_events, anfd->events);
842 }
843 } 1970 }
844 1971
845 fdchangecnt = 0; 1972 fdchangecnt = 0;
846} 1973}
847 1974
… …
859 fdchanges [fdchangecnt - 1] = fd; 1986 fdchanges [fdchangecnt - 1] = fd;
860 } 1987 }
861} 1988}
862 1989
863/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1990/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
864inline_speed void 1991inline_speed void ecb_cold
865fd_kill (EV_P_ int fd) 1992fd_kill (EV_P_ int fd)
866{ 1993{
867 ev_io *w; 1994 ev_io *w;
868 1995
869 while ((w = (ev_io *)anfds [fd].head)) 1996 while ((w = (ev_io *)anfds [fd].head))
… …
871 ev_io_stop (EV_A_ w); 1998 ev_io_stop (EV_A_ w);
872 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1999 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
873 } 2000 }
874} 2001}
875 2002
876/* check whether the given fd is atcually valid, for error recovery */ 2003/* check whether the given fd is actually valid, for error recovery */
877inline_size int 2004inline_size int ecb_cold
878fd_valid (int fd) 2005fd_valid (int fd)
879{ 2006{
880#ifdef _WIN32 2007#ifdef _WIN32
881 return _get_osfhandle (fd) != -1; 2008 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
882#else 2009#else
883 return fcntl (fd, F_GETFD) != -1; 2010 return fcntl (fd, F_GETFD) != -1;
884#endif 2011#endif
885} 2012}
886 2013
887/* called on EBADF to verify fds */ 2014/* called on EBADF to verify fds */
888static void noinline 2015static void noinline ecb_cold
889fd_ebadf (EV_P) 2016fd_ebadf (EV_P)
890{ 2017{
891 int fd; 2018 int fd;
892 2019
893 for (fd = 0; fd < anfdmax; ++fd) 2020 for (fd = 0; fd < anfdmax; ++fd)
… …
895 if (!fd_valid (fd) && errno == EBADF) 2022 if (!fd_valid (fd) && errno == EBADF)
896 fd_kill (EV_A_ fd); 2023 fd_kill (EV_A_ fd);
897} 2024}
898 2025
899/* called on ENOMEM in select/poll to kill some fds and retry */ 2026/* called on ENOMEM in select/poll to kill some fds and retry */
900static void noinline 2027static void noinline ecb_cold
901fd_enomem (EV_P) 2028fd_enomem (EV_P)
902{ 2029{
903 int fd; 2030 int fd;
904 2031
905 for (fd = anfdmax; fd--; ) 2032 for (fd = anfdmax; fd--; )
906 if (anfds [fd].events) 2033 if (anfds [fd].events)
907 { 2034 {
908 fd_kill (EV_A_ fd); 2035 fd_kill (EV_A_ fd);
909 return; 2036 break;
910 } 2037 }
911} 2038}
912 2039
913/* usually called after fork if backend needs to re-arm all fds from scratch */ 2040/* usually called after fork if backend needs to re-arm all fds from scratch */
914static void noinline 2041static void noinline
… …
923 anfds [fd].emask = 0; 2050 anfds [fd].emask = 0;
924 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 2051 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
925 } 2052 }
926} 2053}
927 2054
2055/* used to prepare libev internal fd's */
2056/* this is not fork-safe */
2057inline_speed void
2058fd_intern (int fd)
2059{
2060#ifdef _WIN32
2061 unsigned long arg = 1;
2062 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
2063#else
2064 fcntl (fd, F_SETFD, FD_CLOEXEC);
2065 fcntl (fd, F_SETFL, O_NONBLOCK);
2066#endif
2067}
2068
928/*****************************************************************************/ 2069/*****************************************************************************/
929 2070
930/* 2071/*
931 * the heap functions want a real array index. array index 0 uis guaranteed to not 2072 * the heap functions want a real array index. array index 0 is guaranteed to not
932 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 2073 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
933 * the branching factor of the d-tree. 2074 * the branching factor of the d-tree.
934 */ 2075 */
935 2076
936/* 2077/*
… …
1004 2145
1005 for (;;) 2146 for (;;)
1006 { 2147 {
1007 int c = k << 1; 2148 int c = k << 1;
1008 2149
1009 if (c > N + HEAP0 - 1) 2150 if (c >= N + HEAP0)
1010 break; 2151 break;
1011 2152
1012 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 2153 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1013 ? 1 : 0; 2154 ? 1 : 0;
1014 2155
… …
1050 2191
1051/* move an element suitably so it is in a correct place */ 2192/* move an element suitably so it is in a correct place */
1052inline_size void 2193inline_size void
1053adjustheap (ANHE *heap, int N, int k) 2194adjustheap (ANHE *heap, int N, int k)
1054{ 2195{
1055 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 2196 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1056 upheap (heap, k); 2197 upheap (heap, k);
1057 else 2198 else
1058 downheap (heap, N, k); 2199 downheap (heap, N, k);
1059} 2200}
1060 2201
… …
1073/*****************************************************************************/ 2214/*****************************************************************************/
1074 2215
1075/* associate signal watchers to a signal signal */ 2216/* associate signal watchers to a signal signal */
1076typedef struct 2217typedef struct
1077{ 2218{
2219 EV_ATOMIC_T pending;
2220#if EV_MULTIPLICITY
2221 EV_P;
2222#endif
1078 WL head; 2223 WL head;
1079 EV_ATOMIC_T gotsig;
1080} ANSIG; 2224} ANSIG;
1081 2225
1082static ANSIG *signals; 2226static ANSIG signals [EV_NSIG - 1];
1083static int signalmax;
1084
1085static EV_ATOMIC_T gotsig;
1086 2227
1087/*****************************************************************************/ 2228/*****************************************************************************/
1088 2229
1089/* used to prepare libev internal fd's */ 2230#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1090/* this is not fork-safe */ 2231
2232static void noinline ecb_cold
2233evpipe_init (EV_P)
2234{
2235 if (!ev_is_active (&pipe_w))
2236 {
2237 int fds [2];
2238
2239# if EV_USE_EVENTFD
2240 fds [0] = -1;
2241 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
2242 if (fds [1] < 0 && errno == EINVAL)
2243 fds [1] = eventfd (0, 0);
2244
2245 if (fds [1] < 0)
2246# endif
2247 {
2248 while (pipe (fds))
2249 ev_syserr ("(libev) error creating signal/async pipe");
2250
2251 fd_intern (fds [0]);
2252 }
2253
2254 evpipe [0] = fds [0];
2255
2256 if (evpipe [1] < 0)
2257 evpipe [1] = fds [1]; /* first call, set write fd */
2258 else
2259 {
2260 /* on subsequent calls, do not change evpipe [1] */
2261 /* so that evpipe_write can always rely on its value. */
2262 /* this branch does not do anything sensible on windows, */
2263 /* so must not be executed on windows */
2264
2265 dup2 (fds [1], evpipe [1]);
2266 close (fds [1]);
2267 }
2268
2269 fd_intern (evpipe [1]);
2270
2271 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2272 ev_io_start (EV_A_ &pipe_w);
2273 ev_unref (EV_A); /* watcher should not keep loop alive */
2274 }
2275}
2276
1091inline_speed void 2277inline_speed void
1092fd_intern (int fd) 2278evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1093{ 2279{
1094#ifdef _WIN32 2280 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1095 unsigned long arg = 1;
1096 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1097#else
1098 fcntl (fd, F_SETFD, FD_CLOEXEC);
1099 fcntl (fd, F_SETFL, O_NONBLOCK);
1100#endif
1101}
1102 2281
1103static void noinline 2282 if (expect_true (*flag))
1104evpipe_init (EV_P) 2283 return;
1105{ 2284
1106 if (!ev_is_active (&pipe_w)) 2285 *flag = 1;
2286 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2287
2288 pipe_write_skipped = 1;
2289
2290 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2291
2292 if (pipe_write_wanted)
1107 { 2293 {
2294 int old_errno;
2295
2296 pipe_write_skipped = 0;
2297 ECB_MEMORY_FENCE_RELEASE;
2298
2299 old_errno = errno; /* save errno because write will clobber it */
2300
1108#if EV_USE_EVENTFD 2301#if EV_USE_EVENTFD
1109 if ((evfd = eventfd (0, 0)) >= 0) 2302 if (evpipe [0] < 0)
1110 { 2303 {
1111 evpipe [0] = -1; 2304 uint64_t counter = 1;
1112 fd_intern (evfd); 2305 write (evpipe [1], &counter, sizeof (uint64_t));
1113 ev_io_set (&pipe_w, evfd, EV_READ);
1114 } 2306 }
1115 else 2307 else
1116#endif 2308#endif
1117 { 2309 {
1118 while (pipe (evpipe)) 2310#ifdef _WIN32
1119 ev_syserr ("(libev) error creating signal/async pipe"); 2311 WSABUF buf;
1120 2312 DWORD sent;
1121 fd_intern (evpipe [0]); 2313 buf.buf = &buf;
1122 fd_intern (evpipe [1]); 2314 buf.len = 1;
1123 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2315 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2316#else
2317 write (evpipe [1], &(evpipe [1]), 1);
2318#endif
1124 } 2319 }
1125
1126 ev_io_start (EV_A_ &pipe_w);
1127 ev_unref (EV_A); /* watcher should not keep loop alive */
1128 }
1129}
1130
1131inline_size void
1132evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1133{
1134 if (!*flag)
1135 {
1136 int old_errno = errno; /* save errno because write might clobber it */
1137
1138 *flag = 1;
1139
1140#if EV_USE_EVENTFD
1141 if (evfd >= 0)
1142 {
1143 uint64_t counter = 1;
1144 write (evfd, &counter, sizeof (uint64_t));
1145 }
1146 else
1147#endif
1148 write (evpipe [1], &old_errno, 1);
1149 2320
1150 errno = old_errno; 2321 errno = old_errno;
1151 } 2322 }
1152} 2323}
1153 2324
1154/* called whenever the libev signal pipe */ 2325/* called whenever the libev signal pipe */
1155/* got some events (signal, async) */ 2326/* got some events (signal, async) */
1156static void 2327static void
1157pipecb (EV_P_ ev_io *iow, int revents) 2328pipecb (EV_P_ ev_io *iow, int revents)
1158{ 2329{
2330 int i;
2331
2332 if (revents & EV_READ)
2333 {
1159#if EV_USE_EVENTFD 2334#if EV_USE_EVENTFD
1160 if (evfd >= 0) 2335 if (evpipe [0] < 0)
1161 { 2336 {
1162 uint64_t counter; 2337 uint64_t counter;
1163 read (evfd, &counter, sizeof (uint64_t)); 2338 read (evpipe [1], &counter, sizeof (uint64_t));
1164 } 2339 }
1165 else 2340 else
1166#endif 2341#endif
1167 { 2342 {
1168 char dummy; 2343 char dummy[4];
2344#ifdef _WIN32
2345 WSABUF buf;
2346 DWORD recvd;
2347 DWORD flags = 0;
2348 buf.buf = dummy;
2349 buf.len = sizeof (dummy);
2350 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2351#else
1169 read (evpipe [0], &dummy, 1); 2352 read (evpipe [0], &dummy, sizeof (dummy));
2353#endif
2354 }
2355 }
2356
2357 pipe_write_skipped = 0;
2358
2359 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2360
2361#if EV_SIGNAL_ENABLE
2362 if (sig_pending)
1170 } 2363 {
2364 sig_pending = 0;
1171 2365
1172 if (gotsig && ev_is_default_loop (EV_A)) 2366 ECB_MEMORY_FENCE;
1173 {
1174 int signum;
1175 gotsig = 0;
1176 2367
1177 for (signum = signalmax; signum--; ) 2368 for (i = EV_NSIG - 1; i--; )
1178 if (signals [signum].gotsig) 2369 if (expect_false (signals [i].pending))
1179 ev_feed_signal_event (EV_A_ signum + 1); 2370 ev_feed_signal_event (EV_A_ i + 1);
1180 } 2371 }
2372#endif
1181 2373
1182#if EV_ASYNC_ENABLE 2374#if EV_ASYNC_ENABLE
1183 if (gotasync) 2375 if (async_pending)
1184 { 2376 {
1185 int i; 2377 async_pending = 0;
1186 gotasync = 0; 2378
2379 ECB_MEMORY_FENCE;
1187 2380
1188 for (i = asynccnt; i--; ) 2381 for (i = asynccnt; i--; )
1189 if (asyncs [i]->sent) 2382 if (asyncs [i]->sent)
1190 { 2383 {
1191 asyncs [i]->sent = 0; 2384 asyncs [i]->sent = 0;
2385 ECB_MEMORY_FENCE_RELEASE;
1192 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2386 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1193 } 2387 }
1194 } 2388 }
1195#endif 2389#endif
1196} 2390}
1197 2391
1198/*****************************************************************************/ 2392/*****************************************************************************/
1199 2393
2394void
2395ev_feed_signal (int signum) EV_THROW
2396{
2397#if EV_MULTIPLICITY
2398 EV_P;
2399 ECB_MEMORY_FENCE_ACQUIRE;
2400 EV_A = signals [signum - 1].loop;
2401
2402 if (!EV_A)
2403 return;
2404#endif
2405
2406 signals [signum - 1].pending = 1;
2407 evpipe_write (EV_A_ &sig_pending);
2408}
2409
1200static void 2410static void
1201ev_sighandler (int signum) 2411ev_sighandler (int signum)
1202{ 2412{
2413#ifdef _WIN32
2414 signal (signum, ev_sighandler);
2415#endif
2416
2417 ev_feed_signal (signum);
2418}
2419
2420void noinline
2421ev_feed_signal_event (EV_P_ int signum) EV_THROW
2422{
2423 WL w;
2424
2425 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2426 return;
2427
2428 --signum;
2429
1203#if EV_MULTIPLICITY 2430#if EV_MULTIPLICITY
1204 struct ev_loop *loop = &default_loop_struct; 2431 /* it is permissible to try to feed a signal to the wrong loop */
1205#endif 2432 /* or, likely more useful, feeding a signal nobody is waiting for */
1206 2433
1207#if _WIN32 2434 if (expect_false (signals [signum].loop != EV_A))
1208 signal (signum, ev_sighandler);
1209#endif
1210
1211 signals [signum - 1].gotsig = 1;
1212 evpipe_write (EV_A_ &gotsig);
1213}
1214
1215void noinline
1216ev_feed_signal_event (EV_P_ int signum)
1217{
1218 WL w;
1219
1220#if EV_MULTIPLICITY
1221 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1222#endif
1223
1224 --signum;
1225
1226 if (signum < 0 || signum >= signalmax)
1227 return; 2435 return;
2436#endif
1228 2437
1229 signals [signum].gotsig = 0; 2438 signals [signum].pending = 0;
2439 ECB_MEMORY_FENCE_RELEASE;
1230 2440
1231 for (w = signals [signum].head; w; w = w->next) 2441 for (w = signals [signum].head; w; w = w->next)
1232 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2442 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1233} 2443}
1234 2444
2445#if EV_USE_SIGNALFD
2446static void
2447sigfdcb (EV_P_ ev_io *iow, int revents)
2448{
2449 struct signalfd_siginfo si[2], *sip; /* these structs are big */
2450
2451 for (;;)
2452 {
2453 ssize_t res = read (sigfd, si, sizeof (si));
2454
2455 /* not ISO-C, as res might be -1, but works with SuS */
2456 for (sip = si; (char *)sip < (char *)si + res; ++sip)
2457 ev_feed_signal_event (EV_A_ sip->ssi_signo);
2458
2459 if (res < (ssize_t)sizeof (si))
2460 break;
2461 }
2462}
2463#endif
2464
2465#endif
2466
1235/*****************************************************************************/ 2467/*****************************************************************************/
1236 2468
2469#if EV_CHILD_ENABLE
1237static WL childs [EV_PID_HASHSIZE]; 2470static WL childs [EV_PID_HASHSIZE];
1238
1239#ifndef _WIN32
1240 2471
1241static ev_signal childev; 2472static ev_signal childev;
1242 2473
1243#ifndef WIFCONTINUED 2474#ifndef WIFCONTINUED
1244# define WIFCONTINUED(status) 0 2475# define WIFCONTINUED(status) 0
… …
1249child_reap (EV_P_ int chain, int pid, int status) 2480child_reap (EV_P_ int chain, int pid, int status)
1250{ 2481{
1251 ev_child *w; 2482 ev_child *w;
1252 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2483 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1253 2484
1254 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2485 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1255 { 2486 {
1256 if ((w->pid == pid || !w->pid) 2487 if ((w->pid == pid || !w->pid)
1257 && (!traced || (w->flags & 1))) 2488 && (!traced || (w->flags & 1)))
1258 { 2489 {
1259 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2490 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1284 /* make sure we are called again until all children have been reaped */ 2515 /* make sure we are called again until all children have been reaped */
1285 /* we need to do it this way so that the callback gets called before we continue */ 2516 /* we need to do it this way so that the callback gets called before we continue */
1286 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2517 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1287 2518
1288 child_reap (EV_A_ pid, pid, status); 2519 child_reap (EV_A_ pid, pid, status);
1289 if (EV_PID_HASHSIZE > 1) 2520 if ((EV_PID_HASHSIZE) > 1)
1290 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2521 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1291} 2522}
1292 2523
1293#endif 2524#endif
1294 2525
1295/*****************************************************************************/ 2526/*****************************************************************************/
1296 2527
2528#if EV_USE_IOCP
2529# include "ev_iocp.c"
2530#endif
1297#if EV_USE_PORT 2531#if EV_USE_PORT
1298# include "ev_port.c" 2532# include "ev_port.c"
1299#endif 2533#endif
1300#if EV_USE_KQUEUE 2534#if EV_USE_KQUEUE
1301# include "ev_kqueue.c" 2535# include "ev_kqueue.c"
… …
1308#endif 2542#endif
1309#if EV_USE_SELECT 2543#if EV_USE_SELECT
1310# include "ev_select.c" 2544# include "ev_select.c"
1311#endif 2545#endif
1312 2546
1313int 2547int ecb_cold
1314ev_version_major (void) 2548ev_version_major (void) EV_THROW
1315{ 2549{
1316 return EV_VERSION_MAJOR; 2550 return EV_VERSION_MAJOR;
1317} 2551}
1318 2552
1319int 2553int ecb_cold
1320ev_version_minor (void) 2554ev_version_minor (void) EV_THROW
1321{ 2555{
1322 return EV_VERSION_MINOR; 2556 return EV_VERSION_MINOR;
1323} 2557}
1324 2558
1325/* return true if we are running with elevated privileges and should ignore env variables */ 2559/* return true if we are running with elevated privileges and should ignore env variables */
1326int inline_size 2560int inline_size ecb_cold
1327enable_secure (void) 2561enable_secure (void)
1328{ 2562{
1329#ifdef _WIN32 2563#ifdef _WIN32
1330 return 0; 2564 return 0;
1331#else 2565#else
1332 return getuid () != geteuid () 2566 return getuid () != geteuid ()
1333 || getgid () != getegid (); 2567 || getgid () != getegid ();
1334#endif 2568#endif
1335} 2569}
1336 2570
1337unsigned int 2571unsigned int ecb_cold
1338ev_supported_backends (void) 2572ev_supported_backends (void) EV_THROW
1339{ 2573{
1340 unsigned int flags = 0; 2574 unsigned int flags = 0;
1341 2575
1342 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2576 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1343 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2577 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1346 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2580 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1347 2581
1348 return flags; 2582 return flags;
1349} 2583}
1350 2584
1351unsigned int 2585unsigned int ecb_cold
1352ev_recommended_backends (void) 2586ev_recommended_backends (void) EV_THROW
1353{ 2587{
1354 unsigned int flags = ev_supported_backends (); 2588 unsigned int flags = ev_supported_backends ();
1355 2589
1356#ifndef __NetBSD__ 2590#ifndef __NetBSD__
1357 /* kqueue is borked on everything but netbsd apparently */ 2591 /* kqueue is borked on everything but netbsd apparently */
… …
1361#ifdef __APPLE__ 2595#ifdef __APPLE__
1362 /* only select works correctly on that "unix-certified" platform */ 2596 /* only select works correctly on that "unix-certified" platform */
1363 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2597 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1364 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2598 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1365#endif 2599#endif
2600#ifdef __FreeBSD__
2601 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2602#endif
1366 2603
1367 return flags; 2604 return flags;
1368} 2605}
1369 2606
2607unsigned int ecb_cold
2608ev_embeddable_backends (void) EV_THROW
2609{
2610 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2611
2612 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2613 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2614 flags &= ~EVBACKEND_EPOLL;
2615
2616 return flags;
2617}
2618
1370unsigned int 2619unsigned int
1371ev_embeddable_backends (void) 2620ev_backend (EV_P) EV_THROW
1372{ 2621{
1373 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2622 return backend;
1374
1375 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1376 /* please fix it and tell me how to detect the fix */
1377 flags &= ~EVBACKEND_EPOLL;
1378
1379 return flags;
1380} 2623}
1381 2624
2625#if EV_FEATURE_API
1382unsigned int 2626unsigned int
1383ev_backend (EV_P) 2627ev_iteration (EV_P) EV_THROW
1384{ 2628{
1385 return backend; 2629 return loop_count;
1386} 2630}
1387 2631
1388#if EV_MINIMAL < 2
1389unsigned int 2632unsigned int
1390ev_loop_count (EV_P) 2633ev_depth (EV_P) EV_THROW
1391{
1392 return loop_count;
1393}
1394
1395unsigned int
1396ev_loop_depth (EV_P)
1397{ 2634{
1398 return loop_depth; 2635 return loop_depth;
1399} 2636}
1400 2637
1401void 2638void
1402ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2639ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1403{ 2640{
1404 io_blocktime = interval; 2641 io_blocktime = interval;
1405} 2642}
1406 2643
1407void 2644void
1408ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2645ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1409{ 2646{
1410 timeout_blocktime = interval; 2647 timeout_blocktime = interval;
1411} 2648}
1412 2649
1413void 2650void
1414ev_set_userdata (EV_P_ void *data) 2651ev_set_userdata (EV_P_ void *data) EV_THROW
1415{ 2652{
1416 userdata = data; 2653 userdata = data;
1417} 2654}
1418 2655
1419void * 2656void *
1420ev_userdata (EV_P) 2657ev_userdata (EV_P) EV_THROW
1421{ 2658{
1422 return userdata; 2659 return userdata;
1423} 2660}
1424 2661
2662void
1425void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2663ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
1426{ 2664{
1427 invoke_cb = invoke_pending_cb; 2665 invoke_cb = invoke_pending_cb;
1428} 2666}
1429 2667
2668void
1430void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2669ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1431{ 2670{
1432 release_cb = release; 2671 release_cb = release;
1433 acquire_cb = acquire; 2672 acquire_cb = acquire;
1434} 2673}
1435#endif 2674#endif
1436 2675
1437/* initialise a loop structure, must be zero-initialised */ 2676/* initialise a loop structure, must be zero-initialised */
1438static void noinline 2677static void noinline ecb_cold
1439loop_init (EV_P_ unsigned int flags) 2678loop_init (EV_P_ unsigned int flags) EV_THROW
1440{ 2679{
1441 if (!backend) 2680 if (!backend)
1442 { 2681 {
2682 origflags = flags;
2683
1443#if EV_USE_REALTIME 2684#if EV_USE_REALTIME
1444 if (!have_realtime) 2685 if (!have_realtime)
1445 { 2686 {
1446 struct timespec ts; 2687 struct timespec ts;
1447 2688
… …
1458 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2699 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1459 have_monotonic = 1; 2700 have_monotonic = 1;
1460 } 2701 }
1461#endif 2702#endif
1462 2703
1463 ev_rt_now = ev_time ();
1464 mn_now = get_clock ();
1465 now_floor = mn_now;
1466 rtmn_diff = ev_rt_now - mn_now;
1467#if EV_MINIMAL < 2
1468 invoke_cb = ev_invoke_pending;
1469#endif
1470
1471 io_blocktime = 0.;
1472 timeout_blocktime = 0.;
1473 backend = 0;
1474 backend_fd = -1;
1475 gotasync = 0;
1476#if EV_USE_INOTIFY
1477 fs_fd = -2;
1478#endif
1479
1480 /* pid check not overridable via env */ 2704 /* pid check not overridable via env */
1481#ifndef _WIN32 2705#ifndef _WIN32
1482 if (flags & EVFLAG_FORKCHECK) 2706 if (flags & EVFLAG_FORKCHECK)
1483 curpid = getpid (); 2707 curpid = getpid ();
1484#endif 2708#endif
… …
1486 if (!(flags & EVFLAG_NOENV) 2710 if (!(flags & EVFLAG_NOENV)
1487 && !enable_secure () 2711 && !enable_secure ()
1488 && getenv ("LIBEV_FLAGS")) 2712 && getenv ("LIBEV_FLAGS"))
1489 flags = atoi (getenv ("LIBEV_FLAGS")); 2713 flags = atoi (getenv ("LIBEV_FLAGS"));
1490 2714
1491 if (!(flags & 0x0000ffffU)) 2715 ev_rt_now = ev_time ();
2716 mn_now = get_clock ();
2717 now_floor = mn_now;
2718 rtmn_diff = ev_rt_now - mn_now;
2719#if EV_FEATURE_API
2720 invoke_cb = ev_invoke_pending;
2721#endif
2722
2723 io_blocktime = 0.;
2724 timeout_blocktime = 0.;
2725 backend = 0;
2726 backend_fd = -1;
2727 sig_pending = 0;
2728#if EV_ASYNC_ENABLE
2729 async_pending = 0;
2730#endif
2731 pipe_write_skipped = 0;
2732 pipe_write_wanted = 0;
2733 evpipe [0] = -1;
2734 evpipe [1] = -1;
2735#if EV_USE_INOTIFY
2736 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2737#endif
2738#if EV_USE_SIGNALFD
2739 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2740#endif
2741
2742 if (!(flags & EVBACKEND_MASK))
1492 flags |= ev_recommended_backends (); 2743 flags |= ev_recommended_backends ();
1493 2744
2745#if EV_USE_IOCP
2746 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2747#endif
1494#if EV_USE_PORT 2748#if EV_USE_PORT
1495 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2749 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1496#endif 2750#endif
1497#if EV_USE_KQUEUE 2751#if EV_USE_KQUEUE
1498 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2752 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1507 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2761 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1508#endif 2762#endif
1509 2763
1510 ev_prepare_init (&pending_w, pendingcb); 2764 ev_prepare_init (&pending_w, pendingcb);
1511 2765
2766#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1512 ev_init (&pipe_w, pipecb); 2767 ev_init (&pipe_w, pipecb);
1513 ev_set_priority (&pipe_w, EV_MAXPRI); 2768 ev_set_priority (&pipe_w, EV_MAXPRI);
2769#endif
1514 } 2770 }
1515} 2771}
1516 2772
1517/* free up a loop structure */ 2773/* free up a loop structure */
1518static void noinline 2774void ecb_cold
1519loop_destroy (EV_P) 2775ev_loop_destroy (EV_P)
1520{ 2776{
1521 int i; 2777 int i;
1522 2778
2779#if EV_MULTIPLICITY
2780 /* mimic free (0) */
2781 if (!EV_A)
2782 return;
2783#endif
2784
2785#if EV_CLEANUP_ENABLE
2786 /* queue cleanup watchers (and execute them) */
2787 if (expect_false (cleanupcnt))
2788 {
2789 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2790 EV_INVOKE_PENDING;
2791 }
2792#endif
2793
2794#if EV_CHILD_ENABLE
2795 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2796 {
2797 ev_ref (EV_A); /* child watcher */
2798 ev_signal_stop (EV_A_ &childev);
2799 }
2800#endif
2801
1523 if (ev_is_active (&pipe_w)) 2802 if (ev_is_active (&pipe_w))
1524 { 2803 {
1525 ev_ref (EV_A); /* signal watcher */ 2804 /*ev_ref (EV_A);*/
1526 ev_io_stop (EV_A_ &pipe_w); 2805 /*ev_io_stop (EV_A_ &pipe_w);*/
1527 2806
2807 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2808 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2809 }
2810
1528#if EV_USE_EVENTFD 2811#if EV_USE_SIGNALFD
1529 if (evfd >= 0) 2812 if (ev_is_active (&sigfd_w))
1530 close (evfd); 2813 close (sigfd);
1531#endif 2814#endif
1532
1533 if (evpipe [0] >= 0)
1534 {
1535 close (evpipe [0]);
1536 close (evpipe [1]);
1537 }
1538 }
1539 2815
1540#if EV_USE_INOTIFY 2816#if EV_USE_INOTIFY
1541 if (fs_fd >= 0) 2817 if (fs_fd >= 0)
1542 close (fs_fd); 2818 close (fs_fd);
1543#endif 2819#endif
1544 2820
1545 if (backend_fd >= 0) 2821 if (backend_fd >= 0)
1546 close (backend_fd); 2822 close (backend_fd);
1547 2823
2824#if EV_USE_IOCP
2825 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2826#endif
1548#if EV_USE_PORT 2827#if EV_USE_PORT
1549 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2828 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1550#endif 2829#endif
1551#if EV_USE_KQUEUE 2830#if EV_USE_KQUEUE
1552 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2831 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1567#if EV_IDLE_ENABLE 2846#if EV_IDLE_ENABLE
1568 array_free (idle, [i]); 2847 array_free (idle, [i]);
1569#endif 2848#endif
1570 } 2849 }
1571 2850
1572 ev_free (anfds); anfdmax = 0; 2851 ev_free (anfds); anfds = 0; anfdmax = 0;
1573 2852
1574 /* have to use the microsoft-never-gets-it-right macro */ 2853 /* have to use the microsoft-never-gets-it-right macro */
1575 array_free (rfeed, EMPTY); 2854 array_free (rfeed, EMPTY);
1576 array_free (fdchange, EMPTY); 2855 array_free (fdchange, EMPTY);
1577 array_free (timer, EMPTY); 2856 array_free (timer, EMPTY);
… …
1579 array_free (periodic, EMPTY); 2858 array_free (periodic, EMPTY);
1580#endif 2859#endif
1581#if EV_FORK_ENABLE 2860#if EV_FORK_ENABLE
1582 array_free (fork, EMPTY); 2861 array_free (fork, EMPTY);
1583#endif 2862#endif
2863#if EV_CLEANUP_ENABLE
2864 array_free (cleanup, EMPTY);
2865#endif
1584 array_free (prepare, EMPTY); 2866 array_free (prepare, EMPTY);
1585 array_free (check, EMPTY); 2867 array_free (check, EMPTY);
1586#if EV_ASYNC_ENABLE 2868#if EV_ASYNC_ENABLE
1587 array_free (async, EMPTY); 2869 array_free (async, EMPTY);
1588#endif 2870#endif
1589 2871
1590 backend = 0; 2872 backend = 0;
2873
2874#if EV_MULTIPLICITY
2875 if (ev_is_default_loop (EV_A))
2876#endif
2877 ev_default_loop_ptr = 0;
2878#if EV_MULTIPLICITY
2879 else
2880 ev_free (EV_A);
2881#endif
1591} 2882}
1592 2883
1593#if EV_USE_INOTIFY 2884#if EV_USE_INOTIFY
1594inline_size void infy_fork (EV_P); 2885inline_size void infy_fork (EV_P);
1595#endif 2886#endif
… …
1608#endif 2899#endif
1609#if EV_USE_INOTIFY 2900#if EV_USE_INOTIFY
1610 infy_fork (EV_A); 2901 infy_fork (EV_A);
1611#endif 2902#endif
1612 2903
2904#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1613 if (ev_is_active (&pipe_w)) 2905 if (ev_is_active (&pipe_w))
1614 { 2906 {
1615 /* this "locks" the handlers against writing to the pipe */ 2907 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1616 /* while we modify the fd vars */
1617 gotsig = 1;
1618#if EV_ASYNC_ENABLE
1619 gotasync = 1;
1620#endif
1621 2908
1622 ev_ref (EV_A); 2909 ev_ref (EV_A);
1623 ev_io_stop (EV_A_ &pipe_w); 2910 ev_io_stop (EV_A_ &pipe_w);
1624 2911
1625#if EV_USE_EVENTFD
1626 if (evfd >= 0)
1627 close (evfd);
1628#endif
1629
1630 if (evpipe [0] >= 0) 2912 if (evpipe [0] >= 0)
1631 { 2913 EV_WIN32_CLOSE_FD (evpipe [0]);
1632 close (evpipe [0]);
1633 close (evpipe [1]);
1634 }
1635 2914
1636 evpipe_init (EV_A); 2915 evpipe_init (EV_A);
1637 /* now iterate over everything, in case we missed something */ 2916 /* iterate over everything, in case we missed something before */
1638 pipecb (EV_A_ &pipe_w, EV_READ); 2917 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1639 } 2918 }
2919#endif
1640 2920
1641 postfork = 0; 2921 postfork = 0;
1642} 2922}
1643 2923
1644#if EV_MULTIPLICITY 2924#if EV_MULTIPLICITY
1645 2925
1646struct ev_loop * 2926struct ev_loop * ecb_cold
1647ev_loop_new (unsigned int flags) 2927ev_loop_new (unsigned int flags) EV_THROW
1648{ 2928{
1649 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2929 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1650 2930
1651 memset (loop, 0, sizeof (struct ev_loop)); 2931 memset (EV_A, 0, sizeof (struct ev_loop));
1652
1653 loop_init (EV_A_ flags); 2932 loop_init (EV_A_ flags);
1654 2933
1655 if (ev_backend (EV_A)) 2934 if (ev_backend (EV_A))
1656 return loop; 2935 return EV_A;
1657 2936
2937 ev_free (EV_A);
1658 return 0; 2938 return 0;
1659} 2939}
1660 2940
1661void
1662ev_loop_destroy (EV_P)
1663{
1664 loop_destroy (EV_A);
1665 ev_free (loop);
1666}
1667
1668void
1669ev_loop_fork (EV_P)
1670{
1671 postfork = 1; /* must be in line with ev_default_fork */
1672}
1673#endif /* multiplicity */ 2941#endif /* multiplicity */
1674 2942
1675#if EV_VERIFY 2943#if EV_VERIFY
1676static void noinline 2944static void noinline ecb_cold
1677verify_watcher (EV_P_ W w) 2945verify_watcher (EV_P_ W w)
1678{ 2946{
1679 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2947 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1680 2948
1681 if (w->pending) 2949 if (w->pending)
1682 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2950 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1683} 2951}
1684 2952
1685static void noinline 2953static void noinline ecb_cold
1686verify_heap (EV_P_ ANHE *heap, int N) 2954verify_heap (EV_P_ ANHE *heap, int N)
1687{ 2955{
1688 int i; 2956 int i;
1689 2957
1690 for (i = HEAP0; i < N + HEAP0; ++i) 2958 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1695 2963
1696 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2964 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1697 } 2965 }
1698} 2966}
1699 2967
1700static void noinline 2968static void noinline ecb_cold
1701array_verify (EV_P_ W *ws, int cnt) 2969array_verify (EV_P_ W *ws, int cnt)
1702{ 2970{
1703 while (cnt--) 2971 while (cnt--)
1704 { 2972 {
1705 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2973 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1706 verify_watcher (EV_A_ ws [cnt]); 2974 verify_watcher (EV_A_ ws [cnt]);
1707 } 2975 }
1708} 2976}
1709#endif 2977#endif
1710 2978
1711#if EV_MINIMAL < 2 2979#if EV_FEATURE_API
1712void 2980void ecb_cold
1713ev_loop_verify (EV_P) 2981ev_verify (EV_P) EV_THROW
1714{ 2982{
1715#if EV_VERIFY 2983#if EV_VERIFY
1716 int i; 2984 int i;
1717 WL w; 2985 WL w, w2;
1718 2986
1719 assert (activecnt >= -1); 2987 assert (activecnt >= -1);
1720 2988
1721 assert (fdchangemax >= fdchangecnt); 2989 assert (fdchangemax >= fdchangecnt);
1722 for (i = 0; i < fdchangecnt; ++i) 2990 for (i = 0; i < fdchangecnt; ++i)
1723 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2991 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1724 2992
1725 assert (anfdmax >= 0); 2993 assert (anfdmax >= 0);
1726 for (i = 0; i < anfdmax; ++i) 2994 for (i = 0; i < anfdmax; ++i)
2995 {
2996 int j = 0;
2997
1727 for (w = anfds [i].head; w; w = w->next) 2998 for (w = w2 = anfds [i].head; w; w = w->next)
1728 { 2999 {
1729 verify_watcher (EV_A_ (W)w); 3000 verify_watcher (EV_A_ (W)w);
3001
3002 if (j++ & 1)
3003 {
3004 assert (("libev: io watcher list contains a loop", w != w2));
3005 w2 = w2->next;
3006 }
3007
1730 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3008 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1731 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 3009 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1732 } 3010 }
3011 }
1733 3012
1734 assert (timermax >= timercnt); 3013 assert (timermax >= timercnt);
1735 verify_heap (EV_A_ timers, timercnt); 3014 verify_heap (EV_A_ timers, timercnt);
1736 3015
1737#if EV_PERIODIC_ENABLE 3016#if EV_PERIODIC_ENABLE
… …
1752#if EV_FORK_ENABLE 3031#if EV_FORK_ENABLE
1753 assert (forkmax >= forkcnt); 3032 assert (forkmax >= forkcnt);
1754 array_verify (EV_A_ (W *)forks, forkcnt); 3033 array_verify (EV_A_ (W *)forks, forkcnt);
1755#endif 3034#endif
1756 3035
3036#if EV_CLEANUP_ENABLE
3037 assert (cleanupmax >= cleanupcnt);
3038 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
3039#endif
3040
1757#if EV_ASYNC_ENABLE 3041#if EV_ASYNC_ENABLE
1758 assert (asyncmax >= asynccnt); 3042 assert (asyncmax >= asynccnt);
1759 array_verify (EV_A_ (W *)asyncs, asynccnt); 3043 array_verify (EV_A_ (W *)asyncs, asynccnt);
1760#endif 3044#endif
1761 3045
3046#if EV_PREPARE_ENABLE
1762 assert (preparemax >= preparecnt); 3047 assert (preparemax >= preparecnt);
1763 array_verify (EV_A_ (W *)prepares, preparecnt); 3048 array_verify (EV_A_ (W *)prepares, preparecnt);
3049#endif
1764 3050
3051#if EV_CHECK_ENABLE
1765 assert (checkmax >= checkcnt); 3052 assert (checkmax >= checkcnt);
1766 array_verify (EV_A_ (W *)checks, checkcnt); 3053 array_verify (EV_A_ (W *)checks, checkcnt);
3054#endif
1767 3055
1768# if 0 3056# if 0
3057#if EV_CHILD_ENABLE
1769 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 3058 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1770 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 3059 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
3060#endif
1771# endif 3061# endif
1772#endif 3062#endif
1773} 3063}
1774#endif 3064#endif
1775 3065
1776#if EV_MULTIPLICITY 3066#if EV_MULTIPLICITY
1777struct ev_loop * 3067struct ev_loop * ecb_cold
1778ev_default_loop_init (unsigned int flags)
1779#else 3068#else
1780int 3069int
3070#endif
1781ev_default_loop (unsigned int flags) 3071ev_default_loop (unsigned int flags) EV_THROW
1782#endif
1783{ 3072{
1784 if (!ev_default_loop_ptr) 3073 if (!ev_default_loop_ptr)
1785 { 3074 {
1786#if EV_MULTIPLICITY 3075#if EV_MULTIPLICITY
1787 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 3076 EV_P = ev_default_loop_ptr = &default_loop_struct;
1788#else 3077#else
1789 ev_default_loop_ptr = 1; 3078 ev_default_loop_ptr = 1;
1790#endif 3079#endif
1791 3080
1792 loop_init (EV_A_ flags); 3081 loop_init (EV_A_ flags);
1793 3082
1794 if (ev_backend (EV_A)) 3083 if (ev_backend (EV_A))
1795 { 3084 {
1796#ifndef _WIN32 3085#if EV_CHILD_ENABLE
1797 ev_signal_init (&childev, childcb, SIGCHLD); 3086 ev_signal_init (&childev, childcb, SIGCHLD);
1798 ev_set_priority (&childev, EV_MAXPRI); 3087 ev_set_priority (&childev, EV_MAXPRI);
1799 ev_signal_start (EV_A_ &childev); 3088 ev_signal_start (EV_A_ &childev);
1800 ev_unref (EV_A); /* child watcher should not keep loop alive */ 3089 ev_unref (EV_A); /* child watcher should not keep loop alive */
1801#endif 3090#endif
… …
1806 3095
1807 return ev_default_loop_ptr; 3096 return ev_default_loop_ptr;
1808} 3097}
1809 3098
1810void 3099void
1811ev_default_destroy (void) 3100ev_loop_fork (EV_P) EV_THROW
1812{ 3101{
1813#if EV_MULTIPLICITY 3102 postfork = 1;
1814 struct ev_loop *loop = ev_default_loop_ptr;
1815#endif
1816
1817 ev_default_loop_ptr = 0;
1818
1819#ifndef _WIN32
1820 ev_ref (EV_A); /* child watcher */
1821 ev_signal_stop (EV_A_ &childev);
1822#endif
1823
1824 loop_destroy (EV_A);
1825}
1826
1827void
1828ev_default_fork (void)
1829{
1830#if EV_MULTIPLICITY
1831 struct ev_loop *loop = ev_default_loop_ptr;
1832#endif
1833
1834 postfork = 1; /* must be in line with ev_loop_fork */
1835} 3103}
1836 3104
1837/*****************************************************************************/ 3105/*****************************************************************************/
1838 3106
1839void 3107void
… …
1841{ 3109{
1842 EV_CB_INVOKE ((W)w, revents); 3110 EV_CB_INVOKE ((W)w, revents);
1843} 3111}
1844 3112
1845unsigned int 3113unsigned int
1846ev_pending_count (EV_P) 3114ev_pending_count (EV_P) EV_THROW
1847{ 3115{
1848 int pri; 3116 int pri;
1849 unsigned int count = 0; 3117 unsigned int count = 0;
1850 3118
1851 for (pri = NUMPRI; pri--; ) 3119 for (pri = NUMPRI; pri--; )
… …
1855} 3123}
1856 3124
1857void noinline 3125void noinline
1858ev_invoke_pending (EV_P) 3126ev_invoke_pending (EV_P)
1859{ 3127{
1860 int pri; 3128 pendingpri = NUMPRI;
1861 3129
1862 for (pri = NUMPRI; pri--; ) 3130 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3131 {
3132 --pendingpri;
3133
1863 while (pendingcnt [pri]) 3134 while (pendingcnt [pendingpri])
1864 { 3135 {
1865 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3136 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1866 3137
1867 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1868 /* ^ this is no longer true, as pending_w could be here */
1869
1870 p->w->pending = 0; 3138 p->w->pending = 0;
1871 EV_CB_INVOKE (p->w, p->events); 3139 EV_CB_INVOKE (p->w, p->events);
1872 EV_FREQUENT_CHECK; 3140 EV_FREQUENT_CHECK;
1873 } 3141 }
3142 }
1874} 3143}
1875 3144
1876#if EV_IDLE_ENABLE 3145#if EV_IDLE_ENABLE
1877/* make idle watchers pending. this handles the "call-idle */ 3146/* make idle watchers pending. this handles the "call-idle */
1878/* only when higher priorities are idle" logic */ 3147/* only when higher priorities are idle" logic */
… …
1930 EV_FREQUENT_CHECK; 3199 EV_FREQUENT_CHECK;
1931 feed_reverse (EV_A_ (W)w); 3200 feed_reverse (EV_A_ (W)w);
1932 } 3201 }
1933 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 3202 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1934 3203
1935 feed_reverse_done (EV_A_ EV_TIMEOUT); 3204 feed_reverse_done (EV_A_ EV_TIMER);
1936 } 3205 }
1937} 3206}
1938 3207
1939#if EV_PERIODIC_ENABLE 3208#if EV_PERIODIC_ENABLE
3209
3210static void noinline
3211periodic_recalc (EV_P_ ev_periodic *w)
3212{
3213 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3214 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3215
3216 /* the above almost always errs on the low side */
3217 while (at <= ev_rt_now)
3218 {
3219 ev_tstamp nat = at + w->interval;
3220
3221 /* when resolution fails us, we use ev_rt_now */
3222 if (expect_false (nat == at))
3223 {
3224 at = ev_rt_now;
3225 break;
3226 }
3227
3228 at = nat;
3229 }
3230
3231 ev_at (w) = at;
3232}
3233
1940/* make periodics pending */ 3234/* make periodics pending */
1941inline_size void 3235inline_size void
1942periodics_reify (EV_P) 3236periodics_reify (EV_P)
1943{ 3237{
1944 EV_FREQUENT_CHECK; 3238 EV_FREQUENT_CHECK;
1945 3239
1946 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3240 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1947 { 3241 {
1948 int feed_count = 0;
1949
1950 do 3242 do
1951 { 3243 {
1952 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3244 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1953 3245
1954 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3246 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
1963 ANHE_at_cache (periodics [HEAP0]); 3255 ANHE_at_cache (periodics [HEAP0]);
1964 downheap (periodics, periodiccnt, HEAP0); 3256 downheap (periodics, periodiccnt, HEAP0);
1965 } 3257 }
1966 else if (w->interval) 3258 else if (w->interval)
1967 { 3259 {
1968 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3260 periodic_recalc (EV_A_ w);
1969 /* if next trigger time is not sufficiently in the future, put it there */
1970 /* this might happen because of floating point inexactness */
1971 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1972 {
1973 ev_at (w) += w->interval;
1974
1975 /* if interval is unreasonably low we might still have a time in the past */
1976 /* so correct this. this will make the periodic very inexact, but the user */
1977 /* has effectively asked to get triggered more often than possible */
1978 if (ev_at (w) < ev_rt_now)
1979 ev_at (w) = ev_rt_now;
1980 }
1981
1982 ANHE_at_cache (periodics [HEAP0]); 3261 ANHE_at_cache (periodics [HEAP0]);
1983 downheap (periodics, periodiccnt, HEAP0); 3262 downheap (periodics, periodiccnt, HEAP0);
1984 } 3263 }
1985 else 3264 else
1986 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3265 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1993 feed_reverse_done (EV_A_ EV_PERIODIC); 3272 feed_reverse_done (EV_A_ EV_PERIODIC);
1994 } 3273 }
1995} 3274}
1996 3275
1997/* simply recalculate all periodics */ 3276/* simply recalculate all periodics */
1998/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 3277/* TODO: maybe ensure that at least one event happens when jumping forward? */
1999static void noinline 3278static void noinline ecb_cold
2000periodics_reschedule (EV_P) 3279periodics_reschedule (EV_P)
2001{ 3280{
2002 int i; 3281 int i;
2003 3282
2004 /* adjust periodics after time jump */ 3283 /* adjust periodics after time jump */
… …
2007 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3286 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2008 3287
2009 if (w->reschedule_cb) 3288 if (w->reschedule_cb)
2010 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3289 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2011 else if (w->interval) 3290 else if (w->interval)
2012 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3291 periodic_recalc (EV_A_ w);
2013 3292
2014 ANHE_at_cache (periodics [i]); 3293 ANHE_at_cache (periodics [i]);
2015 } 3294 }
2016 3295
2017 reheap (periodics, periodiccnt); 3296 reheap (periodics, periodiccnt);
2018} 3297}
2019#endif 3298#endif
2020 3299
2021/* adjust all timers by a given offset */ 3300/* adjust all timers by a given offset */
2022static void noinline 3301static void noinline ecb_cold
2023timers_reschedule (EV_P_ ev_tstamp adjust) 3302timers_reschedule (EV_P_ ev_tstamp adjust)
2024{ 3303{
2025 int i; 3304 int i;
2026 3305
2027 for (i = 0; i < timercnt; ++i) 3306 for (i = 0; i < timercnt; ++i)
… …
2031 ANHE_at_cache (*he); 3310 ANHE_at_cache (*he);
2032 } 3311 }
2033} 3312}
2034 3313
2035/* fetch new monotonic and realtime times from the kernel */ 3314/* fetch new monotonic and realtime times from the kernel */
2036/* also detetc if there was a timejump, and act accordingly */ 3315/* also detect if there was a timejump, and act accordingly */
2037inline_speed void 3316inline_speed void
2038time_update (EV_P_ ev_tstamp max_block) 3317time_update (EV_P_ ev_tstamp max_block)
2039{ 3318{
2040#if EV_USE_MONOTONIC 3319#if EV_USE_MONOTONIC
2041 if (expect_true (have_monotonic)) 3320 if (expect_true (have_monotonic))
… …
2064 * doesn't hurt either as we only do this on time-jumps or 3343 * doesn't hurt either as we only do this on time-jumps or
2065 * in the unlikely event of having been preempted here. 3344 * in the unlikely event of having been preempted here.
2066 */ 3345 */
2067 for (i = 4; --i; ) 3346 for (i = 4; --i; )
2068 { 3347 {
3348 ev_tstamp diff;
2069 rtmn_diff = ev_rt_now - mn_now; 3349 rtmn_diff = ev_rt_now - mn_now;
2070 3350
3351 diff = odiff - rtmn_diff;
3352
2071 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3353 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2072 return; /* all is well */ 3354 return; /* all is well */
2073 3355
2074 ev_rt_now = ev_time (); 3356 ev_rt_now = ev_time ();
2075 mn_now = get_clock (); 3357 mn_now = get_clock ();
2076 now_floor = mn_now; 3358 now_floor = mn_now;
… …
2098 3380
2099 mn_now = ev_rt_now; 3381 mn_now = ev_rt_now;
2100 } 3382 }
2101} 3383}
2102 3384
2103void 3385int
2104ev_loop (EV_P_ int flags) 3386ev_run (EV_P_ int flags)
2105{ 3387{
2106#if EV_MINIMAL < 2 3388#if EV_FEATURE_API
2107 ++loop_depth; 3389 ++loop_depth;
2108#endif 3390#endif
2109 3391
2110 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3392 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2111 3393
2112 loop_done = EVUNLOOP_CANCEL; 3394 loop_done = EVBREAK_CANCEL;
2113 3395
2114 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3396 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2115 3397
2116 do 3398 do
2117 { 3399 {
2118#if EV_VERIFY >= 2 3400#if EV_VERIFY >= 2
2119 ev_loop_verify (EV_A); 3401 ev_verify (EV_A);
2120#endif 3402#endif
2121 3403
2122#ifndef _WIN32 3404#ifndef _WIN32
2123 if (expect_false (curpid)) /* penalise the forking check even more */ 3405 if (expect_false (curpid)) /* penalise the forking check even more */
2124 if (expect_false (getpid () != curpid)) 3406 if (expect_false (getpid () != curpid))
… …
2136 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3418 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2137 EV_INVOKE_PENDING; 3419 EV_INVOKE_PENDING;
2138 } 3420 }
2139#endif 3421#endif
2140 3422
3423#if EV_PREPARE_ENABLE
2141 /* queue prepare watchers (and execute them) */ 3424 /* queue prepare watchers (and execute them) */
2142 if (expect_false (preparecnt)) 3425 if (expect_false (preparecnt))
2143 { 3426 {
2144 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3427 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2145 EV_INVOKE_PENDING; 3428 EV_INVOKE_PENDING;
2146 } 3429 }
3430#endif
2147 3431
2148 if (expect_false (loop_done)) 3432 if (expect_false (loop_done))
2149 break; 3433 break;
2150 3434
2151 /* we might have forked, so reify kernel state if necessary */ 3435 /* we might have forked, so reify kernel state if necessary */
… …
2158 /* calculate blocking time */ 3442 /* calculate blocking time */
2159 { 3443 {
2160 ev_tstamp waittime = 0.; 3444 ev_tstamp waittime = 0.;
2161 ev_tstamp sleeptime = 0.; 3445 ev_tstamp sleeptime = 0.;
2162 3446
3447 /* remember old timestamp for io_blocktime calculation */
3448 ev_tstamp prev_mn_now = mn_now;
3449
3450 /* update time to cancel out callback processing overhead */
3451 time_update (EV_A_ 1e100);
3452
3453 /* from now on, we want a pipe-wake-up */
3454 pipe_write_wanted = 1;
3455
3456 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3457
2163 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3458 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2164 { 3459 {
2165 /* remember old timestamp for io_blocktime calculation */
2166 ev_tstamp prev_mn_now = mn_now;
2167
2168 /* update time to cancel out callback processing overhead */
2169 time_update (EV_A_ 1e100);
2170
2171 waittime = MAX_BLOCKTIME; 3460 waittime = MAX_BLOCKTIME;
2172 3461
2173 if (timercnt) 3462 if (timercnt)
2174 { 3463 {
2175 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3464 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2176 if (waittime > to) waittime = to; 3465 if (waittime > to) waittime = to;
2177 } 3466 }
2178 3467
2179#if EV_PERIODIC_ENABLE 3468#if EV_PERIODIC_ENABLE
2180 if (periodiccnt) 3469 if (periodiccnt)
2181 { 3470 {
2182 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3471 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2183 if (waittime > to) waittime = to; 3472 if (waittime > to) waittime = to;
2184 } 3473 }
2185#endif 3474#endif
2186 3475
2187 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3476 /* don't let timeouts decrease the waittime below timeout_blocktime */
2188 if (expect_false (waittime < timeout_blocktime)) 3477 if (expect_false (waittime < timeout_blocktime))
2189 waittime = timeout_blocktime; 3478 waittime = timeout_blocktime;
3479
3480 /* at this point, we NEED to wait, so we have to ensure */
3481 /* to pass a minimum nonzero value to the backend */
3482 if (expect_false (waittime < backend_mintime))
3483 waittime = backend_mintime;
2190 3484
2191 /* extra check because io_blocktime is commonly 0 */ 3485 /* extra check because io_blocktime is commonly 0 */
2192 if (expect_false (io_blocktime)) 3486 if (expect_false (io_blocktime))
2193 { 3487 {
2194 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3488 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2195 3489
2196 if (sleeptime > waittime - backend_fudge) 3490 if (sleeptime > waittime - backend_mintime)
2197 sleeptime = waittime - backend_fudge; 3491 sleeptime = waittime - backend_mintime;
2198 3492
2199 if (expect_true (sleeptime > 0.)) 3493 if (expect_true (sleeptime > 0.))
2200 { 3494 {
2201 ev_sleep (sleeptime); 3495 ev_sleep (sleeptime);
2202 waittime -= sleeptime; 3496 waittime -= sleeptime;
2203 } 3497 }
2204 } 3498 }
2205 } 3499 }
2206 3500
2207#if EV_MINIMAL < 2 3501#if EV_FEATURE_API
2208 ++loop_count; 3502 ++loop_count;
2209#endif 3503#endif
2210 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3504 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2211 backend_poll (EV_A_ waittime); 3505 backend_poll (EV_A_ waittime);
2212 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3506 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3507
3508 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3509
3510 ECB_MEMORY_FENCE_ACQUIRE;
3511 if (pipe_write_skipped)
3512 {
3513 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3514 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3515 }
3516
2213 3517
2214 /* update ev_rt_now, do magic */ 3518 /* update ev_rt_now, do magic */
2215 time_update (EV_A_ waittime + sleeptime); 3519 time_update (EV_A_ waittime + sleeptime);
2216 } 3520 }
2217 3521
… …
2224#if EV_IDLE_ENABLE 3528#if EV_IDLE_ENABLE
2225 /* queue idle watchers unless other events are pending */ 3529 /* queue idle watchers unless other events are pending */
2226 idle_reify (EV_A); 3530 idle_reify (EV_A);
2227#endif 3531#endif
2228 3532
3533#if EV_CHECK_ENABLE
2229 /* queue check watchers, to be executed first */ 3534 /* queue check watchers, to be executed first */
2230 if (expect_false (checkcnt)) 3535 if (expect_false (checkcnt))
2231 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3536 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3537#endif
2232 3538
2233 EV_INVOKE_PENDING; 3539 EV_INVOKE_PENDING;
2234 } 3540 }
2235 while (expect_true ( 3541 while (expect_true (
2236 activecnt 3542 activecnt
2237 && !loop_done 3543 && !loop_done
2238 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3544 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2239 )); 3545 ));
2240 3546
2241 if (loop_done == EVUNLOOP_ONE) 3547 if (loop_done == EVBREAK_ONE)
2242 loop_done = EVUNLOOP_CANCEL; 3548 loop_done = EVBREAK_CANCEL;
2243 3549
2244#if EV_MINIMAL < 2 3550#if EV_FEATURE_API
2245 --loop_depth; 3551 --loop_depth;
2246#endif 3552#endif
3553
3554 return activecnt;
2247} 3555}
2248 3556
2249void 3557void
2250ev_unloop (EV_P_ int how) 3558ev_break (EV_P_ int how) EV_THROW
2251{ 3559{
2252 loop_done = how; 3560 loop_done = how;
2253} 3561}
2254 3562
2255void 3563void
2256ev_ref (EV_P) 3564ev_ref (EV_P) EV_THROW
2257{ 3565{
2258 ++activecnt; 3566 ++activecnt;
2259} 3567}
2260 3568
2261void 3569void
2262ev_unref (EV_P) 3570ev_unref (EV_P) EV_THROW
2263{ 3571{
2264 --activecnt; 3572 --activecnt;
2265} 3573}
2266 3574
2267void 3575void
2268ev_now_update (EV_P) 3576ev_now_update (EV_P) EV_THROW
2269{ 3577{
2270 time_update (EV_A_ 1e100); 3578 time_update (EV_A_ 1e100);
2271} 3579}
2272 3580
2273void 3581void
2274ev_suspend (EV_P) 3582ev_suspend (EV_P) EV_THROW
2275{ 3583{
2276 ev_now_update (EV_A); 3584 ev_now_update (EV_A);
2277} 3585}
2278 3586
2279void 3587void
2280ev_resume (EV_P) 3588ev_resume (EV_P) EV_THROW
2281{ 3589{
2282 ev_tstamp mn_prev = mn_now; 3590 ev_tstamp mn_prev = mn_now;
2283 3591
2284 ev_now_update (EV_A); 3592 ev_now_update (EV_A);
2285 timers_reschedule (EV_A_ mn_now - mn_prev); 3593 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2302inline_size void 3610inline_size void
2303wlist_del (WL *head, WL elem) 3611wlist_del (WL *head, WL elem)
2304{ 3612{
2305 while (*head) 3613 while (*head)
2306 { 3614 {
2307 if (*head == elem) 3615 if (expect_true (*head == elem))
2308 { 3616 {
2309 *head = elem->next; 3617 *head = elem->next;
2310 return; 3618 break;
2311 } 3619 }
2312 3620
2313 head = &(*head)->next; 3621 head = &(*head)->next;
2314 } 3622 }
2315} 3623}
… …
2324 w->pending = 0; 3632 w->pending = 0;
2325 } 3633 }
2326} 3634}
2327 3635
2328int 3636int
2329ev_clear_pending (EV_P_ void *w) 3637ev_clear_pending (EV_P_ void *w) EV_THROW
2330{ 3638{
2331 W w_ = (W)w; 3639 W w_ = (W)w;
2332 int pending = w_->pending; 3640 int pending = w_->pending;
2333 3641
2334 if (expect_true (pending)) 3642 if (expect_true (pending))
… …
2367} 3675}
2368 3676
2369/*****************************************************************************/ 3677/*****************************************************************************/
2370 3678
2371void noinline 3679void noinline
2372ev_io_start (EV_P_ ev_io *w) 3680ev_io_start (EV_P_ ev_io *w) EV_THROW
2373{ 3681{
2374 int fd = w->fd; 3682 int fd = w->fd;
2375 3683
2376 if (expect_false (ev_is_active (w))) 3684 if (expect_false (ev_is_active (w)))
2377 return; 3685 return;
2378 3686
2379 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3687 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2380 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3688 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2381 3689
2382 EV_FREQUENT_CHECK; 3690 EV_FREQUENT_CHECK;
2383 3691
2384 ev_start (EV_A_ (W)w, 1); 3692 ev_start (EV_A_ (W)w, 1);
2385 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3693 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2386 wlist_add (&anfds[fd].head, (WL)w); 3694 wlist_add (&anfds[fd].head, (WL)w);
2387 3695
3696 /* common bug, apparently */
3697 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3698
2388 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3699 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2389 w->events &= ~EV__IOFDSET; 3700 w->events &= ~EV__IOFDSET;
2390 3701
2391 EV_FREQUENT_CHECK; 3702 EV_FREQUENT_CHECK;
2392} 3703}
2393 3704
2394void noinline 3705void noinline
2395ev_io_stop (EV_P_ ev_io *w) 3706ev_io_stop (EV_P_ ev_io *w) EV_THROW
2396{ 3707{
2397 clear_pending (EV_A_ (W)w); 3708 clear_pending (EV_A_ (W)w);
2398 if (expect_false (!ev_is_active (w))) 3709 if (expect_false (!ev_is_active (w)))
2399 return; 3710 return;
2400 3711
… …
2403 EV_FREQUENT_CHECK; 3714 EV_FREQUENT_CHECK;
2404 3715
2405 wlist_del (&anfds[w->fd].head, (WL)w); 3716 wlist_del (&anfds[w->fd].head, (WL)w);
2406 ev_stop (EV_A_ (W)w); 3717 ev_stop (EV_A_ (W)w);
2407 3718
2408 fd_change (EV_A_ w->fd, 1); 3719 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2409 3720
2410 EV_FREQUENT_CHECK; 3721 EV_FREQUENT_CHECK;
2411} 3722}
2412 3723
2413void noinline 3724void noinline
2414ev_timer_start (EV_P_ ev_timer *w) 3725ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2415{ 3726{
2416 if (expect_false (ev_is_active (w))) 3727 if (expect_false (ev_is_active (w)))
2417 return; 3728 return;
2418 3729
2419 ev_at (w) += mn_now; 3730 ev_at (w) += mn_now;
… …
2433 3744
2434 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3745 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2435} 3746}
2436 3747
2437void noinline 3748void noinline
2438ev_timer_stop (EV_P_ ev_timer *w) 3749ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2439{ 3750{
2440 clear_pending (EV_A_ (W)w); 3751 clear_pending (EV_A_ (W)w);
2441 if (expect_false (!ev_is_active (w))) 3752 if (expect_false (!ev_is_active (w)))
2442 return; 3753 return;
2443 3754
… …
2455 timers [active] = timers [timercnt + HEAP0]; 3766 timers [active] = timers [timercnt + HEAP0];
2456 adjustheap (timers, timercnt, active); 3767 adjustheap (timers, timercnt, active);
2457 } 3768 }
2458 } 3769 }
2459 3770
2460 EV_FREQUENT_CHECK;
2461
2462 ev_at (w) -= mn_now; 3771 ev_at (w) -= mn_now;
2463 3772
2464 ev_stop (EV_A_ (W)w); 3773 ev_stop (EV_A_ (W)w);
3774
3775 EV_FREQUENT_CHECK;
2465} 3776}
2466 3777
2467void noinline 3778void noinline
2468ev_timer_again (EV_P_ ev_timer *w) 3779ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2469{ 3780{
2470 EV_FREQUENT_CHECK; 3781 EV_FREQUENT_CHECK;
3782
3783 clear_pending (EV_A_ (W)w);
2471 3784
2472 if (ev_is_active (w)) 3785 if (ev_is_active (w))
2473 { 3786 {
2474 if (w->repeat) 3787 if (w->repeat)
2475 { 3788 {
… …
2487 } 3800 }
2488 3801
2489 EV_FREQUENT_CHECK; 3802 EV_FREQUENT_CHECK;
2490} 3803}
2491 3804
3805ev_tstamp
3806ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3807{
3808 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3809}
3810
2492#if EV_PERIODIC_ENABLE 3811#if EV_PERIODIC_ENABLE
2493void noinline 3812void noinline
2494ev_periodic_start (EV_P_ ev_periodic *w) 3813ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2495{ 3814{
2496 if (expect_false (ev_is_active (w))) 3815 if (expect_false (ev_is_active (w)))
2497 return; 3816 return;
2498 3817
2499 if (w->reschedule_cb) 3818 if (w->reschedule_cb)
2500 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3819 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2501 else if (w->interval) 3820 else if (w->interval)
2502 { 3821 {
2503 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3822 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2504 /* this formula differs from the one in periodic_reify because we do not always round up */ 3823 periodic_recalc (EV_A_ w);
2505 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2506 } 3824 }
2507 else 3825 else
2508 ev_at (w) = w->offset; 3826 ev_at (w) = w->offset;
2509 3827
2510 EV_FREQUENT_CHECK; 3828 EV_FREQUENT_CHECK;
… …
2520 3838
2521 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3839 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2522} 3840}
2523 3841
2524void noinline 3842void noinline
2525ev_periodic_stop (EV_P_ ev_periodic *w) 3843ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2526{ 3844{
2527 clear_pending (EV_A_ (W)w); 3845 clear_pending (EV_A_ (W)w);
2528 if (expect_false (!ev_is_active (w))) 3846 if (expect_false (!ev_is_active (w)))
2529 return; 3847 return;
2530 3848
… …
2542 periodics [active] = periodics [periodiccnt + HEAP0]; 3860 periodics [active] = periodics [periodiccnt + HEAP0];
2543 adjustheap (periodics, periodiccnt, active); 3861 adjustheap (periodics, periodiccnt, active);
2544 } 3862 }
2545 } 3863 }
2546 3864
2547 EV_FREQUENT_CHECK;
2548
2549 ev_stop (EV_A_ (W)w); 3865 ev_stop (EV_A_ (W)w);
3866
3867 EV_FREQUENT_CHECK;
2550} 3868}
2551 3869
2552void noinline 3870void noinline
2553ev_periodic_again (EV_P_ ev_periodic *w) 3871ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2554{ 3872{
2555 /* TODO: use adjustheap and recalculation */ 3873 /* TODO: use adjustheap and recalculation */
2556 ev_periodic_stop (EV_A_ w); 3874 ev_periodic_stop (EV_A_ w);
2557 ev_periodic_start (EV_A_ w); 3875 ev_periodic_start (EV_A_ w);
2558} 3876}
… …
2560 3878
2561#ifndef SA_RESTART 3879#ifndef SA_RESTART
2562# define SA_RESTART 0 3880# define SA_RESTART 0
2563#endif 3881#endif
2564 3882
3883#if EV_SIGNAL_ENABLE
3884
2565void noinline 3885void noinline
2566ev_signal_start (EV_P_ ev_signal *w) 3886ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2567{ 3887{
2568#if EV_MULTIPLICITY
2569 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2570#endif
2571 if (expect_false (ev_is_active (w))) 3888 if (expect_false (ev_is_active (w)))
2572 return; 3889 return;
2573 3890
2574 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3891 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2575 3892
2576 evpipe_init (EV_A); 3893#if EV_MULTIPLICITY
3894 assert (("libev: a signal must not be attached to two different loops",
3895 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2577 3896
2578 EV_FREQUENT_CHECK; 3897 signals [w->signum - 1].loop = EV_A;
3898 ECB_MEMORY_FENCE_RELEASE;
3899#endif
2579 3900
3901 EV_FREQUENT_CHECK;
3902
3903#if EV_USE_SIGNALFD
3904 if (sigfd == -2)
2580 { 3905 {
2581#ifndef _WIN32 3906 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2582 sigset_t full, prev; 3907 if (sigfd < 0 && errno == EINVAL)
2583 sigfillset (&full); 3908 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2584 sigprocmask (SIG_SETMASK, &full, &prev);
2585#endif
2586 3909
2587 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3910 if (sigfd >= 0)
3911 {
3912 fd_intern (sigfd); /* doing it twice will not hurt */
2588 3913
2589#ifndef _WIN32 3914 sigemptyset (&sigfd_set);
2590 sigprocmask (SIG_SETMASK, &prev, 0); 3915
2591#endif 3916 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3917 ev_set_priority (&sigfd_w, EV_MAXPRI);
3918 ev_io_start (EV_A_ &sigfd_w);
3919 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3920 }
2592 } 3921 }
3922
3923 if (sigfd >= 0)
3924 {
3925 /* TODO: check .head */
3926 sigaddset (&sigfd_set, w->signum);
3927 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3928
3929 signalfd (sigfd, &sigfd_set, 0);
3930 }
3931#endif
2593 3932
2594 ev_start (EV_A_ (W)w, 1); 3933 ev_start (EV_A_ (W)w, 1);
2595 wlist_add (&signals [w->signum - 1].head, (WL)w); 3934 wlist_add (&signals [w->signum - 1].head, (WL)w);
2596 3935
2597 if (!((WL)w)->next) 3936 if (!((WL)w)->next)
3937# if EV_USE_SIGNALFD
3938 if (sigfd < 0) /*TODO*/
3939# endif
2598 { 3940 {
2599#if _WIN32 3941# ifdef _WIN32
3942 evpipe_init (EV_A);
3943
2600 signal (w->signum, ev_sighandler); 3944 signal (w->signum, ev_sighandler);
2601#else 3945# else
2602 struct sigaction sa = { }; 3946 struct sigaction sa;
3947
3948 evpipe_init (EV_A);
3949
2603 sa.sa_handler = ev_sighandler; 3950 sa.sa_handler = ev_sighandler;
2604 sigfillset (&sa.sa_mask); 3951 sigfillset (&sa.sa_mask);
2605 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3952 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2606 sigaction (w->signum, &sa, 0); 3953 sigaction (w->signum, &sa, 0);
3954
3955 if (origflags & EVFLAG_NOSIGMASK)
3956 {
3957 sigemptyset (&sa.sa_mask);
3958 sigaddset (&sa.sa_mask, w->signum);
3959 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3960 }
2607#endif 3961#endif
2608 } 3962 }
2609 3963
2610 EV_FREQUENT_CHECK; 3964 EV_FREQUENT_CHECK;
2611} 3965}
2612 3966
2613void noinline 3967void noinline
2614ev_signal_stop (EV_P_ ev_signal *w) 3968ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2615{ 3969{
2616 clear_pending (EV_A_ (W)w); 3970 clear_pending (EV_A_ (W)w);
2617 if (expect_false (!ev_is_active (w))) 3971 if (expect_false (!ev_is_active (w)))
2618 return; 3972 return;
2619 3973
… …
2621 3975
2622 wlist_del (&signals [w->signum - 1].head, (WL)w); 3976 wlist_del (&signals [w->signum - 1].head, (WL)w);
2623 ev_stop (EV_A_ (W)w); 3977 ev_stop (EV_A_ (W)w);
2624 3978
2625 if (!signals [w->signum - 1].head) 3979 if (!signals [w->signum - 1].head)
3980 {
3981#if EV_MULTIPLICITY
3982 signals [w->signum - 1].loop = 0; /* unattach from signal */
3983#endif
3984#if EV_USE_SIGNALFD
3985 if (sigfd >= 0)
3986 {
3987 sigset_t ss;
3988
3989 sigemptyset (&ss);
3990 sigaddset (&ss, w->signum);
3991 sigdelset (&sigfd_set, w->signum);
3992
3993 signalfd (sigfd, &sigfd_set, 0);
3994 sigprocmask (SIG_UNBLOCK, &ss, 0);
3995 }
3996 else
3997#endif
2626 signal (w->signum, SIG_DFL); 3998 signal (w->signum, SIG_DFL);
3999 }
2627 4000
2628 EV_FREQUENT_CHECK; 4001 EV_FREQUENT_CHECK;
2629} 4002}
4003
4004#endif
4005
4006#if EV_CHILD_ENABLE
2630 4007
2631void 4008void
2632ev_child_start (EV_P_ ev_child *w) 4009ev_child_start (EV_P_ ev_child *w) EV_THROW
2633{ 4010{
2634#if EV_MULTIPLICITY 4011#if EV_MULTIPLICITY
2635 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4012 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2636#endif 4013#endif
2637 if (expect_false (ev_is_active (w))) 4014 if (expect_false (ev_is_active (w)))
2638 return; 4015 return;
2639 4016
2640 EV_FREQUENT_CHECK; 4017 EV_FREQUENT_CHECK;
2641 4018
2642 ev_start (EV_A_ (W)w, 1); 4019 ev_start (EV_A_ (W)w, 1);
2643 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 4020 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2644 4021
2645 EV_FREQUENT_CHECK; 4022 EV_FREQUENT_CHECK;
2646} 4023}
2647 4024
2648void 4025void
2649ev_child_stop (EV_P_ ev_child *w) 4026ev_child_stop (EV_P_ ev_child *w) EV_THROW
2650{ 4027{
2651 clear_pending (EV_A_ (W)w); 4028 clear_pending (EV_A_ (W)w);
2652 if (expect_false (!ev_is_active (w))) 4029 if (expect_false (!ev_is_active (w)))
2653 return; 4030 return;
2654 4031
2655 EV_FREQUENT_CHECK; 4032 EV_FREQUENT_CHECK;
2656 4033
2657 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 4034 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2658 ev_stop (EV_A_ (W)w); 4035 ev_stop (EV_A_ (W)w);
2659 4036
2660 EV_FREQUENT_CHECK; 4037 EV_FREQUENT_CHECK;
2661} 4038}
4039
4040#endif
2662 4041
2663#if EV_STAT_ENABLE 4042#if EV_STAT_ENABLE
2664 4043
2665# ifdef _WIN32 4044# ifdef _WIN32
2666# undef lstat 4045# undef lstat
… …
2672#define MIN_STAT_INTERVAL 0.1074891 4051#define MIN_STAT_INTERVAL 0.1074891
2673 4052
2674static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4053static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2675 4054
2676#if EV_USE_INOTIFY 4055#if EV_USE_INOTIFY
2677# define EV_INOTIFY_BUFSIZE 8192 4056
4057/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4058# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2678 4059
2679static void noinline 4060static void noinline
2680infy_add (EV_P_ ev_stat *w) 4061infy_add (EV_P_ ev_stat *w)
2681{ 4062{
2682 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); 4063 w->wd = inotify_add_watch (fs_fd, w->path,
4064 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4065 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4066 | IN_DONT_FOLLOW | IN_MASK_ADD);
2683 4067
2684 if (w->wd < 0) 4068 if (w->wd >= 0)
4069 {
4070 struct statfs sfs;
4071
4072 /* now local changes will be tracked by inotify, but remote changes won't */
4073 /* unless the filesystem is known to be local, we therefore still poll */
4074 /* also do poll on <2.6.25, but with normal frequency */
4075
4076 if (!fs_2625)
4077 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
4078 else if (!statfs (w->path, &sfs)
4079 && (sfs.f_type == 0x1373 /* devfs */
4080 || sfs.f_type == 0x4006 /* fat */
4081 || sfs.f_type == 0x4d44 /* msdos */
4082 || sfs.f_type == 0xEF53 /* ext2/3 */
4083 || sfs.f_type == 0x72b6 /* jffs2 */
4084 || sfs.f_type == 0x858458f6 /* ramfs */
4085 || sfs.f_type == 0x5346544e /* ntfs */
4086 || sfs.f_type == 0x3153464a /* jfs */
4087 || sfs.f_type == 0x9123683e /* btrfs */
4088 || sfs.f_type == 0x52654973 /* reiser3 */
4089 || sfs.f_type == 0x01021994 /* tmpfs */
4090 || sfs.f_type == 0x58465342 /* xfs */))
4091 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
4092 else
4093 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2685 { 4094 }
4095 else
4096 {
4097 /* can't use inotify, continue to stat */
2686 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4098 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2687 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2688 4099
2689 /* monitor some parent directory for speedup hints */ 4100 /* if path is not there, monitor some parent directory for speedup hints */
2690 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 4101 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2691 /* but an efficiency issue only */ 4102 /* but an efficiency issue only */
2692 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 4103 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2693 { 4104 {
2694 char path [4096]; 4105 char path [4096];
… …
2704 if (!pend || pend == path) 4115 if (!pend || pend == path)
2705 break; 4116 break;
2706 4117
2707 *pend = 0; 4118 *pend = 0;
2708 w->wd = inotify_add_watch (fs_fd, path, mask); 4119 w->wd = inotify_add_watch (fs_fd, path, mask);
2709 } 4120 }
2710 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 4121 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2711 } 4122 }
2712 } 4123 }
2713 4124
2714 if (w->wd >= 0) 4125 if (w->wd >= 0)
2715 {
2716 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4126 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2717 4127
2718 /* now local changes will be tracked by inotify, but remote changes won't */ 4128 /* now re-arm timer, if required */
2719 /* unless the filesystem it known to be local, we therefore still poll */ 4129 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2720 /* also do poll on <2.6.25, but with normal frequency */
2721 struct statfs sfs;
2722
2723 if (fs_2625 && !statfs (w->path, &sfs))
2724 if (sfs.f_type == 0x1373 /* devfs */
2725 || sfs.f_type == 0xEF53 /* ext2/3 */
2726 || sfs.f_type == 0x3153464a /* jfs */
2727 || sfs.f_type == 0x52654973 /* reiser3 */
2728 || sfs.f_type == 0x01021994 /* tempfs */
2729 || sfs.f_type == 0x58465342 /* xfs */)
2730 return;
2731
2732 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2733 ev_timer_again (EV_A_ &w->timer); 4130 ev_timer_again (EV_A_ &w->timer);
2734 } 4131 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2735} 4132}
2736 4133
2737static void noinline 4134static void noinline
2738infy_del (EV_P_ ev_stat *w) 4135infy_del (EV_P_ ev_stat *w)
2739{ 4136{
… …
2742 4139
2743 if (wd < 0) 4140 if (wd < 0)
2744 return; 4141 return;
2745 4142
2746 w->wd = -2; 4143 w->wd = -2;
2747 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 4144 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2748 wlist_del (&fs_hash [slot].head, (WL)w); 4145 wlist_del (&fs_hash [slot].head, (WL)w);
2749 4146
2750 /* remove this watcher, if others are watching it, they will rearm */ 4147 /* remove this watcher, if others are watching it, they will rearm */
2751 inotify_rm_watch (fs_fd, wd); 4148 inotify_rm_watch (fs_fd, wd);
2752} 4149}
… …
2754static void noinline 4151static void noinline
2755infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4152infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2756{ 4153{
2757 if (slot < 0) 4154 if (slot < 0)
2758 /* overflow, need to check for all hash slots */ 4155 /* overflow, need to check for all hash slots */
2759 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4156 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2760 infy_wd (EV_A_ slot, wd, ev); 4157 infy_wd (EV_A_ slot, wd, ev);
2761 else 4158 else
2762 { 4159 {
2763 WL w_; 4160 WL w_;
2764 4161
2765 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 4162 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2766 { 4163 {
2767 ev_stat *w = (ev_stat *)w_; 4164 ev_stat *w = (ev_stat *)w_;
2768 w_ = w_->next; /* lets us remove this watcher and all before it */ 4165 w_ = w_->next; /* lets us remove this watcher and all before it */
2769 4166
2770 if (w->wd == wd || wd == -1) 4167 if (w->wd == wd || wd == -1)
2771 { 4168 {
2772 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 4169 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2773 { 4170 {
2774 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 4171 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2775 w->wd = -1; 4172 w->wd = -1;
2776 infy_add (EV_A_ w); /* re-add, no matter what */ 4173 infy_add (EV_A_ w); /* re-add, no matter what */
2777 } 4174 }
2778 4175
2779 stat_timer_cb (EV_A_ &w->timer, 0); 4176 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2784 4181
2785static void 4182static void
2786infy_cb (EV_P_ ev_io *w, int revents) 4183infy_cb (EV_P_ ev_io *w, int revents)
2787{ 4184{
2788 char buf [EV_INOTIFY_BUFSIZE]; 4185 char buf [EV_INOTIFY_BUFSIZE];
2789 struct inotify_event *ev = (struct inotify_event *)buf;
2790 int ofs; 4186 int ofs;
2791 int len = read (fs_fd, buf, sizeof (buf)); 4187 int len = read (fs_fd, buf, sizeof (buf));
2792 4188
2793 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 4189 for (ofs = 0; ofs < len; )
4190 {
4191 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2794 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4192 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4193 ofs += sizeof (struct inotify_event) + ev->len;
4194 }
2795} 4195}
2796 4196
2797inline_size void 4197inline_size void ecb_cold
2798check_2625 (EV_P) 4198ev_check_2625 (EV_P)
2799{ 4199{
2800 /* kernels < 2.6.25 are borked 4200 /* kernels < 2.6.25 are borked
2801 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4201 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2802 */ 4202 */
2803 struct utsname buf; 4203 if (ev_linux_version () < 0x020619)
2804 int major, minor, micro;
2805
2806 if (uname (&buf))
2807 return; 4204 return;
2808 4205
2809 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2810 return;
2811
2812 if (major < 2
2813 || (major == 2 && minor < 6)
2814 || (major == 2 && minor == 6 && micro < 25))
2815 return;
2816
2817 fs_2625 = 1; 4206 fs_2625 = 1;
4207}
4208
4209inline_size int
4210infy_newfd (void)
4211{
4212#if defined IN_CLOEXEC && defined IN_NONBLOCK
4213 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
4214 if (fd >= 0)
4215 return fd;
4216#endif
4217 return inotify_init ();
2818} 4218}
2819 4219
2820inline_size void 4220inline_size void
2821infy_init (EV_P) 4221infy_init (EV_P)
2822{ 4222{
2823 if (fs_fd != -2) 4223 if (fs_fd != -2)
2824 return; 4224 return;
2825 4225
2826 fs_fd = -1; 4226 fs_fd = -1;
2827 4227
2828 check_2625 (EV_A); 4228 ev_check_2625 (EV_A);
2829 4229
2830 fs_fd = inotify_init (); 4230 fs_fd = infy_newfd ();
2831 4231
2832 if (fs_fd >= 0) 4232 if (fs_fd >= 0)
2833 { 4233 {
4234 fd_intern (fs_fd);
2834 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 4235 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2835 ev_set_priority (&fs_w, EV_MAXPRI); 4236 ev_set_priority (&fs_w, EV_MAXPRI);
2836 ev_io_start (EV_A_ &fs_w); 4237 ev_io_start (EV_A_ &fs_w);
4238 ev_unref (EV_A);
2837 } 4239 }
2838} 4240}
2839 4241
2840inline_size void 4242inline_size void
2841infy_fork (EV_P) 4243infy_fork (EV_P)
… …
2843 int slot; 4245 int slot;
2844 4246
2845 if (fs_fd < 0) 4247 if (fs_fd < 0)
2846 return; 4248 return;
2847 4249
4250 ev_ref (EV_A);
4251 ev_io_stop (EV_A_ &fs_w);
2848 close (fs_fd); 4252 close (fs_fd);
2849 fs_fd = inotify_init (); 4253 fs_fd = infy_newfd ();
2850 4254
4255 if (fs_fd >= 0)
4256 {
4257 fd_intern (fs_fd);
4258 ev_io_set (&fs_w, fs_fd, EV_READ);
4259 ev_io_start (EV_A_ &fs_w);
4260 ev_unref (EV_A);
4261 }
4262
2851 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 4263 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2852 { 4264 {
2853 WL w_ = fs_hash [slot].head; 4265 WL w_ = fs_hash [slot].head;
2854 fs_hash [slot].head = 0; 4266 fs_hash [slot].head = 0;
2855 4267
2856 while (w_) 4268 while (w_)
… …
2861 w->wd = -1; 4273 w->wd = -1;
2862 4274
2863 if (fs_fd >= 0) 4275 if (fs_fd >= 0)
2864 infy_add (EV_A_ w); /* re-add, no matter what */ 4276 infy_add (EV_A_ w); /* re-add, no matter what */
2865 else 4277 else
4278 {
4279 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
4280 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2866 ev_timer_again (EV_A_ &w->timer); 4281 ev_timer_again (EV_A_ &w->timer);
4282 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4283 }
2867 } 4284 }
2868 } 4285 }
2869} 4286}
2870 4287
2871#endif 4288#endif
… …
2875#else 4292#else
2876# define EV_LSTAT(p,b) lstat (p, b) 4293# define EV_LSTAT(p,b) lstat (p, b)
2877#endif 4294#endif
2878 4295
2879void 4296void
2880ev_stat_stat (EV_P_ ev_stat *w) 4297ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2881{ 4298{
2882 if (lstat (w->path, &w->attr) < 0) 4299 if (lstat (w->path, &w->attr) < 0)
2883 w->attr.st_nlink = 0; 4300 w->attr.st_nlink = 0;
2884 else if (!w->attr.st_nlink) 4301 else if (!w->attr.st_nlink)
2885 w->attr.st_nlink = 1; 4302 w->attr.st_nlink = 1;
… …
2888static void noinline 4305static void noinline
2889stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4306stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2890{ 4307{
2891 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4308 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2892 4309
2893 /* we copy this here each the time so that */ 4310 ev_statdata prev = w->attr;
2894 /* prev has the old value when the callback gets invoked */
2895 w->prev = w->attr;
2896 ev_stat_stat (EV_A_ w); 4311 ev_stat_stat (EV_A_ w);
2897 4312
2898 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 4313 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2899 if ( 4314 if (
2900 w->prev.st_dev != w->attr.st_dev 4315 prev.st_dev != w->attr.st_dev
2901 || w->prev.st_ino != w->attr.st_ino 4316 || prev.st_ino != w->attr.st_ino
2902 || w->prev.st_mode != w->attr.st_mode 4317 || prev.st_mode != w->attr.st_mode
2903 || w->prev.st_nlink != w->attr.st_nlink 4318 || prev.st_nlink != w->attr.st_nlink
2904 || w->prev.st_uid != w->attr.st_uid 4319 || prev.st_uid != w->attr.st_uid
2905 || w->prev.st_gid != w->attr.st_gid 4320 || prev.st_gid != w->attr.st_gid
2906 || w->prev.st_rdev != w->attr.st_rdev 4321 || prev.st_rdev != w->attr.st_rdev
2907 || w->prev.st_size != w->attr.st_size 4322 || prev.st_size != w->attr.st_size
2908 || w->prev.st_atime != w->attr.st_atime 4323 || prev.st_atime != w->attr.st_atime
2909 || w->prev.st_mtime != w->attr.st_mtime 4324 || prev.st_mtime != w->attr.st_mtime
2910 || w->prev.st_ctime != w->attr.st_ctime 4325 || prev.st_ctime != w->attr.st_ctime
2911 ) { 4326 ) {
4327 /* we only update w->prev on actual differences */
4328 /* in case we test more often than invoke the callback, */
4329 /* to ensure that prev is always different to attr */
4330 w->prev = prev;
4331
2912 #if EV_USE_INOTIFY 4332 #if EV_USE_INOTIFY
2913 if (fs_fd >= 0) 4333 if (fs_fd >= 0)
2914 { 4334 {
2915 infy_del (EV_A_ w); 4335 infy_del (EV_A_ w);
2916 infy_add (EV_A_ w); 4336 infy_add (EV_A_ w);
… …
2921 ev_feed_event (EV_A_ w, EV_STAT); 4341 ev_feed_event (EV_A_ w, EV_STAT);
2922 } 4342 }
2923} 4343}
2924 4344
2925void 4345void
2926ev_stat_start (EV_P_ ev_stat *w) 4346ev_stat_start (EV_P_ ev_stat *w) EV_THROW
2927{ 4347{
2928 if (expect_false (ev_is_active (w))) 4348 if (expect_false (ev_is_active (w)))
2929 return; 4349 return;
2930 4350
2931 ev_stat_stat (EV_A_ w); 4351 ev_stat_stat (EV_A_ w);
… …
2941 4361
2942 if (fs_fd >= 0) 4362 if (fs_fd >= 0)
2943 infy_add (EV_A_ w); 4363 infy_add (EV_A_ w);
2944 else 4364 else
2945#endif 4365#endif
4366 {
2946 ev_timer_again (EV_A_ &w->timer); 4367 ev_timer_again (EV_A_ &w->timer);
4368 ev_unref (EV_A);
4369 }
2947 4370
2948 ev_start (EV_A_ (W)w, 1); 4371 ev_start (EV_A_ (W)w, 1);
2949 4372
2950 EV_FREQUENT_CHECK; 4373 EV_FREQUENT_CHECK;
2951} 4374}
2952 4375
2953void 4376void
2954ev_stat_stop (EV_P_ ev_stat *w) 4377ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
2955{ 4378{
2956 clear_pending (EV_A_ (W)w); 4379 clear_pending (EV_A_ (W)w);
2957 if (expect_false (!ev_is_active (w))) 4380 if (expect_false (!ev_is_active (w)))
2958 return; 4381 return;
2959 4382
2960 EV_FREQUENT_CHECK; 4383 EV_FREQUENT_CHECK;
2961 4384
2962#if EV_USE_INOTIFY 4385#if EV_USE_INOTIFY
2963 infy_del (EV_A_ w); 4386 infy_del (EV_A_ w);
2964#endif 4387#endif
4388
4389 if (ev_is_active (&w->timer))
4390 {
4391 ev_ref (EV_A);
2965 ev_timer_stop (EV_A_ &w->timer); 4392 ev_timer_stop (EV_A_ &w->timer);
4393 }
2966 4394
2967 ev_stop (EV_A_ (W)w); 4395 ev_stop (EV_A_ (W)w);
2968 4396
2969 EV_FREQUENT_CHECK; 4397 EV_FREQUENT_CHECK;
2970} 4398}
2971#endif 4399#endif
2972 4400
2973#if EV_IDLE_ENABLE 4401#if EV_IDLE_ENABLE
2974void 4402void
2975ev_idle_start (EV_P_ ev_idle *w) 4403ev_idle_start (EV_P_ ev_idle *w) EV_THROW
2976{ 4404{
2977 if (expect_false (ev_is_active (w))) 4405 if (expect_false (ev_is_active (w)))
2978 return; 4406 return;
2979 4407
2980 pri_adjust (EV_A_ (W)w); 4408 pri_adjust (EV_A_ (W)w);
… …
2993 4421
2994 EV_FREQUENT_CHECK; 4422 EV_FREQUENT_CHECK;
2995} 4423}
2996 4424
2997void 4425void
2998ev_idle_stop (EV_P_ ev_idle *w) 4426ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
2999{ 4427{
3000 clear_pending (EV_A_ (W)w); 4428 clear_pending (EV_A_ (W)w);
3001 if (expect_false (!ev_is_active (w))) 4429 if (expect_false (!ev_is_active (w)))
3002 return; 4430 return;
3003 4431
… …
3015 4443
3016 EV_FREQUENT_CHECK; 4444 EV_FREQUENT_CHECK;
3017} 4445}
3018#endif 4446#endif
3019 4447
4448#if EV_PREPARE_ENABLE
3020void 4449void
3021ev_prepare_start (EV_P_ ev_prepare *w) 4450ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3022{ 4451{
3023 if (expect_false (ev_is_active (w))) 4452 if (expect_false (ev_is_active (w)))
3024 return; 4453 return;
3025 4454
3026 EV_FREQUENT_CHECK; 4455 EV_FREQUENT_CHECK;
… …
3031 4460
3032 EV_FREQUENT_CHECK; 4461 EV_FREQUENT_CHECK;
3033} 4462}
3034 4463
3035void 4464void
3036ev_prepare_stop (EV_P_ ev_prepare *w) 4465ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3037{ 4466{
3038 clear_pending (EV_A_ (W)w); 4467 clear_pending (EV_A_ (W)w);
3039 if (expect_false (!ev_is_active (w))) 4468 if (expect_false (!ev_is_active (w)))
3040 return; 4469 return;
3041 4470
… …
3050 4479
3051 ev_stop (EV_A_ (W)w); 4480 ev_stop (EV_A_ (W)w);
3052 4481
3053 EV_FREQUENT_CHECK; 4482 EV_FREQUENT_CHECK;
3054} 4483}
4484#endif
3055 4485
4486#if EV_CHECK_ENABLE
3056void 4487void
3057ev_check_start (EV_P_ ev_check *w) 4488ev_check_start (EV_P_ ev_check *w) EV_THROW
3058{ 4489{
3059 if (expect_false (ev_is_active (w))) 4490 if (expect_false (ev_is_active (w)))
3060 return; 4491 return;
3061 4492
3062 EV_FREQUENT_CHECK; 4493 EV_FREQUENT_CHECK;
… …
3067 4498
3068 EV_FREQUENT_CHECK; 4499 EV_FREQUENT_CHECK;
3069} 4500}
3070 4501
3071void 4502void
3072ev_check_stop (EV_P_ ev_check *w) 4503ev_check_stop (EV_P_ ev_check *w) EV_THROW
3073{ 4504{
3074 clear_pending (EV_A_ (W)w); 4505 clear_pending (EV_A_ (W)w);
3075 if (expect_false (!ev_is_active (w))) 4506 if (expect_false (!ev_is_active (w)))
3076 return; 4507 return;
3077 4508
… …
3086 4517
3087 ev_stop (EV_A_ (W)w); 4518 ev_stop (EV_A_ (W)w);
3088 4519
3089 EV_FREQUENT_CHECK; 4520 EV_FREQUENT_CHECK;
3090} 4521}
4522#endif
3091 4523
3092#if EV_EMBED_ENABLE 4524#if EV_EMBED_ENABLE
3093void noinline 4525void noinline
3094ev_embed_sweep (EV_P_ ev_embed *w) 4526ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3095{ 4527{
3096 ev_loop (w->other, EVLOOP_NONBLOCK); 4528 ev_run (w->other, EVRUN_NOWAIT);
3097} 4529}
3098 4530
3099static void 4531static void
3100embed_io_cb (EV_P_ ev_io *io, int revents) 4532embed_io_cb (EV_P_ ev_io *io, int revents)
3101{ 4533{
3102 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4534 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3103 4535
3104 if (ev_cb (w)) 4536 if (ev_cb (w))
3105 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4537 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3106 else 4538 else
3107 ev_loop (w->other, EVLOOP_NONBLOCK); 4539 ev_run (w->other, EVRUN_NOWAIT);
3108} 4540}
3109 4541
3110static void 4542static void
3111embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4543embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3112{ 4544{
3113 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4545 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3114 4546
3115 { 4547 {
3116 struct ev_loop *loop = w->other; 4548 EV_P = w->other;
3117 4549
3118 while (fdchangecnt) 4550 while (fdchangecnt)
3119 { 4551 {
3120 fd_reify (EV_A); 4552 fd_reify (EV_A);
3121 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4553 ev_run (EV_A_ EVRUN_NOWAIT);
3122 } 4554 }
3123 } 4555 }
3124} 4556}
3125 4557
3126static void 4558static void
… …
3129 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4561 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3130 4562
3131 ev_embed_stop (EV_A_ w); 4563 ev_embed_stop (EV_A_ w);
3132 4564
3133 { 4565 {
3134 struct ev_loop *loop = w->other; 4566 EV_P = w->other;
3135 4567
3136 ev_loop_fork (EV_A); 4568 ev_loop_fork (EV_A);
3137 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4569 ev_run (EV_A_ EVRUN_NOWAIT);
3138 } 4570 }
3139 4571
3140 ev_embed_start (EV_A_ w); 4572 ev_embed_start (EV_A_ w);
3141} 4573}
3142 4574
… …
3147 ev_idle_stop (EV_A_ idle); 4579 ev_idle_stop (EV_A_ idle);
3148} 4580}
3149#endif 4581#endif
3150 4582
3151void 4583void
3152ev_embed_start (EV_P_ ev_embed *w) 4584ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3153{ 4585{
3154 if (expect_false (ev_is_active (w))) 4586 if (expect_false (ev_is_active (w)))
3155 return; 4587 return;
3156 4588
3157 { 4589 {
3158 struct ev_loop *loop = w->other; 4590 EV_P = w->other;
3159 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4591 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3160 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4592 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3161 } 4593 }
3162 4594
3163 EV_FREQUENT_CHECK; 4595 EV_FREQUENT_CHECK;
… …
3178 4610
3179 EV_FREQUENT_CHECK; 4611 EV_FREQUENT_CHECK;
3180} 4612}
3181 4613
3182void 4614void
3183ev_embed_stop (EV_P_ ev_embed *w) 4615ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3184{ 4616{
3185 clear_pending (EV_A_ (W)w); 4617 clear_pending (EV_A_ (W)w);
3186 if (expect_false (!ev_is_active (w))) 4618 if (expect_false (!ev_is_active (w)))
3187 return; 4619 return;
3188 4620
… …
3190 4622
3191 ev_io_stop (EV_A_ &w->io); 4623 ev_io_stop (EV_A_ &w->io);
3192 ev_prepare_stop (EV_A_ &w->prepare); 4624 ev_prepare_stop (EV_A_ &w->prepare);
3193 ev_fork_stop (EV_A_ &w->fork); 4625 ev_fork_stop (EV_A_ &w->fork);
3194 4626
4627 ev_stop (EV_A_ (W)w);
4628
3195 EV_FREQUENT_CHECK; 4629 EV_FREQUENT_CHECK;
3196} 4630}
3197#endif 4631#endif
3198 4632
3199#if EV_FORK_ENABLE 4633#if EV_FORK_ENABLE
3200void 4634void
3201ev_fork_start (EV_P_ ev_fork *w) 4635ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3202{ 4636{
3203 if (expect_false (ev_is_active (w))) 4637 if (expect_false (ev_is_active (w)))
3204 return; 4638 return;
3205 4639
3206 EV_FREQUENT_CHECK; 4640 EV_FREQUENT_CHECK;
… …
3211 4645
3212 EV_FREQUENT_CHECK; 4646 EV_FREQUENT_CHECK;
3213} 4647}
3214 4648
3215void 4649void
3216ev_fork_stop (EV_P_ ev_fork *w) 4650ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3217{ 4651{
3218 clear_pending (EV_A_ (W)w); 4652 clear_pending (EV_A_ (W)w);
3219 if (expect_false (!ev_is_active (w))) 4653 if (expect_false (!ev_is_active (w)))
3220 return; 4654 return;
3221 4655
… …
3232 4666
3233 EV_FREQUENT_CHECK; 4667 EV_FREQUENT_CHECK;
3234} 4668}
3235#endif 4669#endif
3236 4670
4671#if EV_CLEANUP_ENABLE
4672void
4673ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4674{
4675 if (expect_false (ev_is_active (w)))
4676 return;
4677
4678 EV_FREQUENT_CHECK;
4679
4680 ev_start (EV_A_ (W)w, ++cleanupcnt);
4681 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4682 cleanups [cleanupcnt - 1] = w;
4683
4684 /* cleanup watchers should never keep a refcount on the loop */
4685 ev_unref (EV_A);
4686 EV_FREQUENT_CHECK;
4687}
4688
4689void
4690ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4691{
4692 clear_pending (EV_A_ (W)w);
4693 if (expect_false (!ev_is_active (w)))
4694 return;
4695
4696 EV_FREQUENT_CHECK;
4697 ev_ref (EV_A);
4698
4699 {
4700 int active = ev_active (w);
4701
4702 cleanups [active - 1] = cleanups [--cleanupcnt];
4703 ev_active (cleanups [active - 1]) = active;
4704 }
4705
4706 ev_stop (EV_A_ (W)w);
4707
4708 EV_FREQUENT_CHECK;
4709}
4710#endif
4711
3237#if EV_ASYNC_ENABLE 4712#if EV_ASYNC_ENABLE
3238void 4713void
3239ev_async_start (EV_P_ ev_async *w) 4714ev_async_start (EV_P_ ev_async *w) EV_THROW
3240{ 4715{
3241 if (expect_false (ev_is_active (w))) 4716 if (expect_false (ev_is_active (w)))
3242 return; 4717 return;
4718
4719 w->sent = 0;
3243 4720
3244 evpipe_init (EV_A); 4721 evpipe_init (EV_A);
3245 4722
3246 EV_FREQUENT_CHECK; 4723 EV_FREQUENT_CHECK;
3247 4724
… …
3251 4728
3252 EV_FREQUENT_CHECK; 4729 EV_FREQUENT_CHECK;
3253} 4730}
3254 4731
3255void 4732void
3256ev_async_stop (EV_P_ ev_async *w) 4733ev_async_stop (EV_P_ ev_async *w) EV_THROW
3257{ 4734{
3258 clear_pending (EV_A_ (W)w); 4735 clear_pending (EV_A_ (W)w);
3259 if (expect_false (!ev_is_active (w))) 4736 if (expect_false (!ev_is_active (w)))
3260 return; 4737 return;
3261 4738
… …
3272 4749
3273 EV_FREQUENT_CHECK; 4750 EV_FREQUENT_CHECK;
3274} 4751}
3275 4752
3276void 4753void
3277ev_async_send (EV_P_ ev_async *w) 4754ev_async_send (EV_P_ ev_async *w) EV_THROW
3278{ 4755{
3279 w->sent = 1; 4756 w->sent = 1;
3280 evpipe_write (EV_A_ &gotasync); 4757 evpipe_write (EV_A_ &async_pending);
3281} 4758}
3282#endif 4759#endif
3283 4760
3284/*****************************************************************************/ 4761/*****************************************************************************/
3285 4762
… …
3319 4796
3320 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4797 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3321} 4798}
3322 4799
3323void 4800void
3324ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4801ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3325{ 4802{
3326 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4803 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3327 4804
3328 if (expect_false (!once)) 4805 if (expect_false (!once))
3329 { 4806 {
3330 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4807 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3331 return; 4808 return;
3332 } 4809 }
3333 4810
3334 once->cb = cb; 4811 once->cb = cb;
3335 once->arg = arg; 4812 once->arg = arg;
… …
3350} 4827}
3351 4828
3352/*****************************************************************************/ 4829/*****************************************************************************/
3353 4830
3354#if EV_WALK_ENABLE 4831#if EV_WALK_ENABLE
3355void 4832void ecb_cold
3356ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4833ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3357{ 4834{
3358 int i, j; 4835 int i, j;
3359 ev_watcher_list *wl, *wn; 4836 ev_watcher_list *wl, *wn;
3360 4837
3361 if (types & (EV_IO | EV_EMBED)) 4838 if (types & (EV_IO | EV_EMBED))
… …
3404 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4881 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3405#endif 4882#endif
3406 4883
3407#if EV_IDLE_ENABLE 4884#if EV_IDLE_ENABLE
3408 if (types & EV_IDLE) 4885 if (types & EV_IDLE)
3409 for (j = NUMPRI; i--; ) 4886 for (j = NUMPRI; j--; )
3410 for (i = idlecnt [j]; i--; ) 4887 for (i = idlecnt [j]; i--; )
3411 cb (EV_A_ EV_IDLE, idles [j][i]); 4888 cb (EV_A_ EV_IDLE, idles [j][i]);
3412#endif 4889#endif
3413 4890
3414#if EV_FORK_ENABLE 4891#if EV_FORK_ENABLE
… …
3422 if (types & EV_ASYNC) 4899 if (types & EV_ASYNC)
3423 for (i = asynccnt; i--; ) 4900 for (i = asynccnt; i--; )
3424 cb (EV_A_ EV_ASYNC, asyncs [i]); 4901 cb (EV_A_ EV_ASYNC, asyncs [i]);
3425#endif 4902#endif
3426 4903
4904#if EV_PREPARE_ENABLE
3427 if (types & EV_PREPARE) 4905 if (types & EV_PREPARE)
3428 for (i = preparecnt; i--; ) 4906 for (i = preparecnt; i--; )
3429#if EV_EMBED_ENABLE 4907# if EV_EMBED_ENABLE
3430 if (ev_cb (prepares [i]) != embed_prepare_cb) 4908 if (ev_cb (prepares [i]) != embed_prepare_cb)
3431#endif 4909# endif
3432 cb (EV_A_ EV_PREPARE, prepares [i]); 4910 cb (EV_A_ EV_PREPARE, prepares [i]);
4911#endif
3433 4912
4913#if EV_CHECK_ENABLE
3434 if (types & EV_CHECK) 4914 if (types & EV_CHECK)
3435 for (i = checkcnt; i--; ) 4915 for (i = checkcnt; i--; )
3436 cb (EV_A_ EV_CHECK, checks [i]); 4916 cb (EV_A_ EV_CHECK, checks [i]);
4917#endif
3437 4918
4919#if EV_SIGNAL_ENABLE
3438 if (types & EV_SIGNAL) 4920 if (types & EV_SIGNAL)
3439 for (i = 0; i < signalmax; ++i) 4921 for (i = 0; i < EV_NSIG - 1; ++i)
3440 for (wl = signals [i].head; wl; ) 4922 for (wl = signals [i].head; wl; )
3441 { 4923 {
3442 wn = wl->next; 4924 wn = wl->next;
3443 cb (EV_A_ EV_SIGNAL, wl); 4925 cb (EV_A_ EV_SIGNAL, wl);
3444 wl = wn; 4926 wl = wn;
3445 } 4927 }
4928#endif
3446 4929
4930#if EV_CHILD_ENABLE
3447 if (types & EV_CHILD) 4931 if (types & EV_CHILD)
3448 for (i = EV_PID_HASHSIZE; i--; ) 4932 for (i = (EV_PID_HASHSIZE); i--; )
3449 for (wl = childs [i]; wl; ) 4933 for (wl = childs [i]; wl; )
3450 { 4934 {
3451 wn = wl->next; 4935 wn = wl->next;
3452 cb (EV_A_ EV_CHILD, wl); 4936 cb (EV_A_ EV_CHILD, wl);
3453 wl = wn; 4937 wl = wn;
3454 } 4938 }
4939#endif
3455/* EV_STAT 0x00001000 /* stat data changed */ 4940/* EV_STAT 0x00001000 /* stat data changed */
3456/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4941/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3457} 4942}
3458#endif 4943#endif
3459 4944
3460#if EV_MULTIPLICITY 4945#if EV_MULTIPLICITY
3461 #include "ev_wrap.h" 4946 #include "ev_wrap.h"
3462#endif 4947#endif
3463 4948
3464#ifdef __cplusplus
3465}
3466#endif
3467

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