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Comparing libev/ev.c (file contents):
Revision 1.297 by root, Fri Jul 10 00:36:21 2009 UTC vs.
Revision 1.424 by root, Tue May 1 22:01:40 2012 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 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
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>
… …
174# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 206# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 207# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 208# define EV_SELECT_IS_WINSOCKET 1
178# endif 209# endif
210# undef EV_AVOID_STDIO
179#endif 211#endif
212
213/* OS X, in its infinite idiocy, actually HARDCODES
214 * a limit of 1024 into their select. Where people have brains,
215 * OS X engineers apparently have a vacuum. Or maybe they were
216 * ordered to have a vacuum, or they do anything for money.
217 * This might help. Or not.
218 */
219#define _DARWIN_UNLIMITED_SELECT 1
180 220
181/* this block tries to deduce configuration from header-defined symbols and defaults */ 221/* this block tries to deduce configuration from header-defined symbols and defaults */
222
223/* try to deduce the maximum number of signals on this platform */
224#if defined EV_NSIG
225/* use what's provided */
226#elif defined NSIG
227# define EV_NSIG (NSIG)
228#elif defined _NSIG
229# define EV_NSIG (_NSIG)
230#elif defined SIGMAX
231# define EV_NSIG (SIGMAX+1)
232#elif defined SIG_MAX
233# define EV_NSIG (SIG_MAX+1)
234#elif defined _SIG_MAX
235# define EV_NSIG (_SIG_MAX+1)
236#elif defined MAXSIG
237# define EV_NSIG (MAXSIG+1)
238#elif defined MAX_SIG
239# define EV_NSIG (MAX_SIG+1)
240#elif defined SIGARRAYSIZE
241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242#elif defined _sys_nsig
243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244#else
245# error "unable to find value for NSIG, please report"
246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
253#endif
182 254
183#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 258# else
187# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
188# endif 260# endif
189#endif 261#endif
190 262
191#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 266# else
195# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
196# endif 268# endif
197#endif 269#endif
198 270
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 273#endif
202 274
203#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 278# else
207# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
208# endif 280# endif
209#endif 281#endif
210 282
211#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 285#endif
214 286
215#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
216# ifdef _WIN32 288# ifdef _WIN32
217# define EV_USE_POLL 0 289# define EV_USE_POLL 0
218# else 290# else
219# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 292# endif
221#endif 293#endif
222 294
223#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 298# else
227# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
228# endif 300# endif
229#endif 301#endif
230 302
… …
236# define EV_USE_PORT 0 308# define EV_USE_PORT 0
237#endif 309#endif
238 310
239#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 314# else
243# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
244# endif 316# endif
245#endif 317#endif
246 318
247#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 320# 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 321#endif
254 322
255#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 324# 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 325#endif
262 326
263#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 330# else
267# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
332# endif
333#endif
334
335#ifndef EV_USE_SIGNALFD
336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
337# define EV_USE_SIGNALFD EV_FEATURE_OS
338# else
339# define EV_USE_SIGNALFD 0
268# endif 340# endif
269#endif 341#endif
270 342
271#if 0 /* debugging */ 343#if 0 /* debugging */
272# define EV_VERIFY 3 344# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
275#endif 347#endif
276 348
277#ifndef EV_VERIFY 349#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 351#endif
280 352
281#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 355#endif
284 356
285#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif 359#endif
288 360
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 361/* 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. */ 362/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
292# include <syscall.h> 364# include <sys/syscall.h>
293# ifdef SYS_clock_gettime 365# ifdef SYS_clock_gettime
294# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
295# undef EV_USE_MONOTONIC 367# undef EV_USE_MONOTONIC
296# define EV_USE_MONOTONIC 1 368# define EV_USE_MONOTONIC 1
297# else 369# else
… …
300# endif 372# endif
301#endif 373#endif
302 374
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 375/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304 376
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
305#ifndef CLOCK_MONOTONIC 383#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 385# define EV_USE_MONOTONIC 0
308#endif 386#endif
309 387
… …
316# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
318#endif 396#endif
319 397
320#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
321# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
322# include <sys/select.h> 401# include <sys/select.h>
323# endif 402# endif
324#endif 403#endif
325 404
326#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 406# include <sys/statfs.h>
329# include <sys/inotify.h> 407# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
339#endif 417#endif
340 418
341#if EV_USE_EVENTFD 419#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 420/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 421# include <stdint.h>
344# ifdef __cplusplus 422# ifndef EFD_NONBLOCK
345extern "C" { 423# define EFD_NONBLOCK O_NONBLOCK
346# endif 424# endif
347int eventfd (unsigned int initval, int flags); 425# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 426# ifdef O_CLOEXEC
349} 427# define EFD_CLOEXEC O_CLOEXEC
428# else
429# define EFD_CLOEXEC 02000000
430# endif
350# endif 431# endif
432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
433#endif
434
435#if EV_USE_SIGNALFD
436/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
437# include <stdint.h>
438# ifndef SFD_NONBLOCK
439# define SFD_NONBLOCK O_NONBLOCK
440# endif
441# ifndef SFD_CLOEXEC
442# ifdef O_CLOEXEC
443# define SFD_CLOEXEC O_CLOEXEC
444# else
445# define SFD_CLOEXEC 02000000
446# endif
447# endif
448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
449
450struct signalfd_siginfo
451{
452 uint32_t ssi_signo;
453 char pad[128 - sizeof (uint32_t)];
454};
351#endif 455#endif
352 456
353/**/ 457/**/
354 458
355#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 461#else
358# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
359#endif 463#endif
360 464
361/* 465/*
362 * This is used to avoid floating point rounding problems. 466 * 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. 467 * This value is good at least till the year 4000.
367 * Better solutions welcome.
368 */ 468 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
470/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
370 471
371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 472#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) */ 473#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 */
374 474
475#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
476#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
477
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */
480/*
481 * libecb - http://software.schmorp.de/pkg/libecb
482 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved.
486 *
487 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met:
489 *
490 * 1. Redistributions of source code must retain the above copyright notice,
491 * this list of conditions and the following disclaimer.
492 *
493 * 2. Redistributions in binary form must reproduce the above copyright
494 * notice, this list of conditions and the following disclaimer in the
495 * documentation and/or other materials provided with the distribution.
496 *
497 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
498 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
499 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
500 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
501 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE.
507 */
508
509#ifndef ECB_H
510#define ECB_H
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
375#if __GNUC__ >= 4 519 #if __GNUC__
376# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
377# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
378#else 526#else
379# define expect(expr,value) (expr) 527 #include <inttypes.h>
380# define noinline
381# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
382# define inline
383# endif 528#endif
529
530/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place.
536 */
537#ifndef ECB_GCC_VERSION
538 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0
540 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
384#endif 542 #endif
543#endif
385 544
545/*****************************************************************************/
546
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549
550#if ECB_NO_THREADS
551# define ECB_NO_SMP 1
552#endif
553
554#if ECB_NO_THREADS || ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0)
556#endif
557
558#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined __mips__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
584 #elif defined __alpha__
585 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
586 #endif
587 #endif
588#endif
589
590#ifndef ECB_MEMORY_FENCE
591 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
592 #define ECB_MEMORY_FENCE __sync_synchronize ()
593 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
594 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
595 #elif _MSC_VER >= 1400 /* VC++ 2005 */
596 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
597 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
598 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
599 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
600 #elif defined _WIN32
601 #include <WinNT.h>
602 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
603 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
604 #include <mbarrier.h>
605 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
606 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
607 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
608 #elif __xlC__
609 #define ECB_MEMORY_FENCE __sync ()
610 #endif
611#endif
612
613#ifndef ECB_MEMORY_FENCE
614 #if !ECB_AVOID_PTHREADS
615 /*
616 * if you get undefined symbol references to pthread_mutex_lock,
617 * or failure to find pthread.h, then you should implement
618 * the ECB_MEMORY_FENCE operations for your cpu/compiler
619 * OR provide pthread.h and link against the posix thread library
620 * of your system.
621 */
622 #include <pthread.h>
623 #define ECB_NEEDS_PTHREADS 1
624 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
625
626 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
627 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
628 #endif
629#endif
630
631#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
633#endif
634
635#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
636 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
637#endif
638
639/*****************************************************************************/
640
641#define ECB_C99 (__STDC_VERSION__ >= 199901L)
642
643#if __cplusplus
644 #define ecb_inline static inline
645#elif ECB_GCC_VERSION(2,5)
646 #define ecb_inline static __inline__
647#elif ECB_C99
648 #define ecb_inline static inline
649#else
650 #define ecb_inline static
651#endif
652
653#if ECB_GCC_VERSION(3,3)
654 #define ecb_restrict __restrict__
655#elif ECB_C99
656 #define ecb_restrict restrict
657#else
658 #define ecb_restrict
659#endif
660
661typedef int ecb_bool;
662
663#define ECB_CONCAT_(a, b) a ## b
664#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
665#define ECB_STRINGIFY_(a) # a
666#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
667
668#define ecb_function_ ecb_inline
669
670#if ECB_GCC_VERSION(3,1)
671 #define ecb_attribute(attrlist) __attribute__(attrlist)
672 #define ecb_is_constant(expr) __builtin_constant_p (expr)
673 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
674 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
675#else
676 #define ecb_attribute(attrlist)
677 #define ecb_is_constant(expr) 0
678 #define ecb_expect(expr,value) (expr)
679 #define ecb_prefetch(addr,rw,locality)
680#endif
681
682/* no emulation for ecb_decltype */
683#if ECB_GCC_VERSION(4,5)
684 #define ecb_decltype(x) __decltype(x)
685#elif ECB_GCC_VERSION(3,0)
686 #define ecb_decltype(x) __typeof(x)
687#endif
688
689#define ecb_noinline ecb_attribute ((__noinline__))
690#define ecb_noreturn ecb_attribute ((__noreturn__))
691#define ecb_unused ecb_attribute ((__unused__))
692#define ecb_const ecb_attribute ((__const__))
693#define ecb_pure ecb_attribute ((__pure__))
694
695#if ECB_GCC_VERSION(4,3)
696 #define ecb_artificial ecb_attribute ((__artificial__))
697 #define ecb_hot ecb_attribute ((__hot__))
698 #define ecb_cold ecb_attribute ((__cold__))
699#else
700 #define ecb_artificial
701 #define ecb_hot
702 #define ecb_cold
703#endif
704
705/* put around conditional expressions if you are very sure that the */
706/* expression is mostly true or mostly false. note that these return */
707/* booleans, not the expression. */
386#define expect_false(expr) expect ((expr) != 0, 0) 708#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 709#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
710/* for compatibility to the rest of the world */
711#define ecb_likely(expr) ecb_expect_true (expr)
712#define ecb_unlikely(expr) ecb_expect_false (expr)
713
714/* count trailing zero bits and count # of one bits */
715#if ECB_GCC_VERSION(3,4)
716 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
717 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
718 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
719 #define ecb_ctz32(x) __builtin_ctz (x)
720 #define ecb_ctz64(x) __builtin_ctzll (x)
721 #define ecb_popcount32(x) __builtin_popcount (x)
722 /* no popcountll */
723#else
724 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
725 ecb_function_ int
726 ecb_ctz32 (uint32_t x)
727 {
728 int r = 0;
729
730 x &= ~x + 1; /* this isolates the lowest bit */
731
732#if ECB_branchless_on_i386
733 r += !!(x & 0xaaaaaaaa) << 0;
734 r += !!(x & 0xcccccccc) << 1;
735 r += !!(x & 0xf0f0f0f0) << 2;
736 r += !!(x & 0xff00ff00) << 3;
737 r += !!(x & 0xffff0000) << 4;
738#else
739 if (x & 0xaaaaaaaa) r += 1;
740 if (x & 0xcccccccc) r += 2;
741 if (x & 0xf0f0f0f0) r += 4;
742 if (x & 0xff00ff00) r += 8;
743 if (x & 0xffff0000) r += 16;
744#endif
745
746 return r;
747 }
748
749 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
750 ecb_function_ int
751 ecb_ctz64 (uint64_t x)
752 {
753 int shift = x & 0xffffffffU ? 0 : 32;
754 return ecb_ctz32 (x >> shift) + shift;
755 }
756
757 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
758 ecb_function_ int
759 ecb_popcount32 (uint32_t x)
760 {
761 x -= (x >> 1) & 0x55555555;
762 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
763 x = ((x >> 4) + x) & 0x0f0f0f0f;
764 x *= 0x01010101;
765
766 return x >> 24;
767 }
768
769 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
770 ecb_function_ int ecb_ld32 (uint32_t x)
771 {
772 int r = 0;
773
774 if (x >> 16) { x >>= 16; r += 16; }
775 if (x >> 8) { x >>= 8; r += 8; }
776 if (x >> 4) { x >>= 4; r += 4; }
777 if (x >> 2) { x >>= 2; r += 2; }
778 if (x >> 1) { r += 1; }
779
780 return r;
781 }
782
783 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
784 ecb_function_ int ecb_ld64 (uint64_t x)
785 {
786 int r = 0;
787
788 if (x >> 32) { x >>= 32; r += 32; }
789
790 return r + ecb_ld32 (x);
791 }
792#endif
793
794ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796{
797 return ( (x * 0x0802U & 0x22110U)
798 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
799}
800
801ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
803{
804 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
805 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
806 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
807 x = ( x >> 8 ) | ( x << 8);
808
809 return x;
810}
811
812ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
814{
815 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
816 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
817 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
818 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
819 x = ( x >> 16 ) | ( x << 16);
820
821 return x;
822}
823
824/* popcount64 is only available on 64 bit cpus as gcc builtin */
825/* so for this version we are lazy */
826ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
827ecb_function_ int
828ecb_popcount64 (uint64_t x)
829{
830 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
831}
832
833ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
834ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
841
842ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
843ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
844ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
845ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
846ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
847ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
848ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
849ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
850
851#if ECB_GCC_VERSION(4,3)
852 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
853 #define ecb_bswap32(x) __builtin_bswap32 (x)
854 #define ecb_bswap64(x) __builtin_bswap64 (x)
855#else
856 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
857 ecb_function_ uint16_t
858 ecb_bswap16 (uint16_t x)
859 {
860 return ecb_rotl16 (x, 8);
861 }
862
863 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
864 ecb_function_ uint32_t
865 ecb_bswap32 (uint32_t x)
866 {
867 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
868 }
869
870 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
871 ecb_function_ uint64_t
872 ecb_bswap64 (uint64_t x)
873 {
874 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
875 }
876#endif
877
878#if ECB_GCC_VERSION(4,5)
879 #define ecb_unreachable() __builtin_unreachable ()
880#else
881 /* this seems to work fine, but gcc always emits a warning for it :/ */
882 ecb_inline void ecb_unreachable (void) ecb_noreturn;
883 ecb_inline void ecb_unreachable (void) { }
884#endif
885
886/* try to tell the compiler that some condition is definitely true */
887#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
888
889ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
890ecb_inline unsigned char
891ecb_byteorder_helper (void)
892{
893 const uint32_t u = 0x11223344;
894 return *(unsigned char *)&u;
895}
896
897ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
898ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
899ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
900ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
901
902#if ECB_GCC_VERSION(3,0) || ECB_C99
903 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
904#else
905 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
906#endif
907
908#if __cplusplus
909 template<typename T>
910 static inline T ecb_div_rd (T val, T div)
911 {
912 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
913 }
914 template<typename T>
915 static inline T ecb_div_ru (T val, T div)
916 {
917 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
918 }
919#else
920 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
921 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
922#endif
923
924#if ecb_cplusplus_does_not_suck
925 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
926 template<typename T, int N>
927 static inline int ecb_array_length (const T (&arr)[N])
928 {
929 return N;
930 }
931#else
932 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
933#endif
934
935#endif
936
937/* ECB.H END */
938
939#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
940/* if your architecture doesn't need memory fences, e.g. because it is
941 * single-cpu/core, or if you use libev in a project that doesn't use libev
942 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
943 * libev, in which cases the memory fences become nops.
944 * alternatively, you can remove this #error and link against libpthread,
945 * which will then provide the memory fences.
946 */
947# error "memory fences not defined for your architecture, please report"
948#endif
949
950#ifndef ECB_MEMORY_FENCE
951# define ECB_MEMORY_FENCE do { } while (0)
952# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
953# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
954#endif
955
956#define expect_false(cond) ecb_expect_false (cond)
957#define expect_true(cond) ecb_expect_true (cond)
958#define noinline ecb_noinline
959
388#define inline_size static inline 960#define inline_size ecb_inline
389 961
390#if EV_MINIMAL 962#if EV_FEATURE_CODE
963# define inline_speed ecb_inline
964#else
391# define inline_speed static noinline 965# define inline_speed static noinline
392#else
393# define inline_speed static inline
394#endif 966#endif
395 967
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397 969
398#if EV_MINPRI == EV_MAXPRI 970#if EV_MINPRI == EV_MAXPRI
… …
411#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
412#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
413 985
414#if EV_USE_REALTIME 986#if EV_USE_REALTIME
415/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 987/* 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 */ 988/* giving it a reasonably high chance of working on typical architectures */
417static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
418#endif 990#endif
419 991
420#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
421static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422#endif 994#endif
423 995
996#ifndef EV_FD_TO_WIN32_HANDLE
997# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
998#endif
999#ifndef EV_WIN32_HANDLE_TO_FD
1000# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
1001#endif
1002#ifndef EV_WIN32_CLOSE_FD
1003# define EV_WIN32_CLOSE_FD(fd) close (fd)
1004#endif
1005
424#ifdef _WIN32 1006#ifdef _WIN32
425# include "ev_win32.c" 1007# include "ev_win32.c"
426#endif 1008#endif
427 1009
428/*****************************************************************************/ 1010/*****************************************************************************/
429 1011
1012/* define a suitable floor function (only used by periodics atm) */
1013
1014#if EV_USE_FLOOR
1015# include <math.h>
1016# define ev_floor(v) floor (v)
1017#else
1018
1019#include <float.h>
1020
1021/* a floor() replacement function, should be independent of ev_tstamp type */
1022static ev_tstamp noinline
1023ev_floor (ev_tstamp v)
1024{
1025 /* the choice of shift factor is not terribly important */
1026#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1027 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1028#else
1029 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1030#endif
1031
1032 /* argument too large for an unsigned long? */
1033 if (expect_false (v >= shift))
1034 {
1035 ev_tstamp f;
1036
1037 if (v == v - 1.)
1038 return v; /* very large number */
1039
1040 f = shift * ev_floor (v * (1. / shift));
1041 return f + ev_floor (v - f);
1042 }
1043
1044 /* special treatment for negative args? */
1045 if (expect_false (v < 0.))
1046 {
1047 ev_tstamp f = -ev_floor (-v);
1048
1049 return f - (f == v ? 0 : 1);
1050 }
1051
1052 /* fits into an unsigned long */
1053 return (unsigned long)v;
1054}
1055
1056#endif
1057
1058/*****************************************************************************/
1059
1060#ifdef __linux
1061# include <sys/utsname.h>
1062#endif
1063
1064static unsigned int noinline ecb_cold
1065ev_linux_version (void)
1066{
1067#ifdef __linux
1068 unsigned int v = 0;
1069 struct utsname buf;
1070 int i;
1071 char *p = buf.release;
1072
1073 if (uname (&buf))
1074 return 0;
1075
1076 for (i = 3+1; --i; )
1077 {
1078 unsigned int c = 0;
1079
1080 for (;;)
1081 {
1082 if (*p >= '0' && *p <= '9')
1083 c = c * 10 + *p++ - '0';
1084 else
1085 {
1086 p += *p == '.';
1087 break;
1088 }
1089 }
1090
1091 v = (v << 8) | c;
1092 }
1093
1094 return v;
1095#else
1096 return 0;
1097#endif
1098}
1099
1100/*****************************************************************************/
1101
1102#if EV_AVOID_STDIO
1103static void noinline ecb_cold
1104ev_printerr (const char *msg)
1105{
1106 write (STDERR_FILENO, msg, strlen (msg));
1107}
1108#endif
1109
430static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
431 1111
432void 1112void ecb_cold
433ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
434{ 1114{
435 syserr_cb = cb; 1115 syserr_cb = cb;
436} 1116}
437 1117
438static void noinline 1118static void noinline ecb_cold
439ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
440{ 1120{
441 if (!msg) 1121 if (!msg)
442 msg = "(libev) system error"; 1122 msg = "(libev) system error";
443 1123
444 if (syserr_cb) 1124 if (syserr_cb)
445 syserr_cb (msg); 1125 syserr_cb (msg);
446 else 1126 else
447 { 1127 {
1128#if EV_AVOID_STDIO
1129 ev_printerr (msg);
1130 ev_printerr (": ");
1131 ev_printerr (strerror (errno));
1132 ev_printerr ("\n");
1133#else
448 perror (msg); 1134 perror (msg);
1135#endif
449 abort (); 1136 abort ();
450 } 1137 }
451} 1138}
452 1139
453static void * 1140static void *
454ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
455{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
456 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
457 * implement realloc (x, 0) (as required by both ansi c-98 and 1147 * implement realloc (x, 0) (as required by both ansi c-89 and
458 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
459 */ 1149 */
460 1150
461 if (size) 1151 if (size)
462 return realloc (ptr, size); 1152 return realloc (ptr, size);
463 1153
464 free (ptr); 1154 free (ptr);
465 return 0; 1155 return 0;
1156#endif
466} 1157}
467 1158
468static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
469 1160
470void 1161void ecb_cold
471ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
472{ 1163{
473 alloc = cb; 1164 alloc = cb;
474} 1165}
475 1166
476inline_speed void * 1167inline_speed void *
… …
478{ 1169{
479 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
480 1171
481 if (!ptr && size) 1172 if (!ptr && size)
482 { 1173 {
1174#if EV_AVOID_STDIO
1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1176#else
483 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1178#endif
484 abort (); 1179 abort ();
485 } 1180 }
486 1181
487 return ptr; 1182 return ptr;
488} 1183}
… …
490#define ev_malloc(size) ev_realloc (0, (size)) 1185#define ev_malloc(size) ev_realloc (0, (size))
491#define ev_free(ptr) ev_realloc ((ptr), 0) 1186#define ev_free(ptr) ev_realloc ((ptr), 0)
492 1187
493/*****************************************************************************/ 1188/*****************************************************************************/
494 1189
1190/* set in reify when reification needed */
1191#define EV_ANFD_REIFY 1
1192
495/* file descriptor info structure */ 1193/* file descriptor info structure */
496typedef struct 1194typedef struct
497{ 1195{
498 WL head; 1196 WL head;
499 unsigned char events; /* the events watched for */ 1197 unsigned char events; /* the events watched for */
500 unsigned char reify; /* flag set when this ANFD needs reification */ 1198 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
501 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1199 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
502 unsigned char unused; 1200 unsigned char unused;
503#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
504 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
505#endif 1203#endif
506#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
507 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
508#endif 1209#endif
509} ANFD; 1210} ANFD;
510 1211
511/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
512typedef struct 1213typedef struct
… …
554 #undef VAR 1255 #undef VAR
555 }; 1256 };
556 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
557 1258
558 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
559 struct ev_loop *ev_default_loop_ptr; 1260 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
560 1261
561#else 1262#else
562 1263
563 ev_tstamp ev_rt_now; 1264 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
564 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
565 #include "ev_vars.h" 1266 #include "ev_vars.h"
566 #undef VAR 1267 #undef VAR
567 1268
568 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
569 1270
570#endif 1271#endif
571 1272
572#if EV_MINIMAL < 2 1273#if EV_FEATURE_API
573# define EV_SUSPEND_CB if (expect_false (suspend_cb)) suspend_cb (EV_A)
574# define EV_RESUME_CB if (expect_false (resume_cb )) resume_cb (EV_A) 1274# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
1275# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
575# define EV_INVOKE_PENDING invoke_cb (EV_A) 1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
576#else 1277#else
577# define EV_SUSPEND_CB (void)0
578# define EV_RESUME_CB (void)0 1278# define EV_RELEASE_CB (void)0
1279# define EV_ACQUIRE_CB (void)0
579# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
580#endif 1281#endif
1282
1283#define EVBREAK_RECURSE 0x80
581 1284
582/*****************************************************************************/ 1285/*****************************************************************************/
583 1286
584#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
585ev_tstamp 1288ev_tstamp
586ev_time (void) 1289ev_time (void) EV_THROW
587{ 1290{
588#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
589 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
590 { 1293 {
591 struct timespec ts; 1294 struct timespec ts;
… …
615 return ev_time (); 1318 return ev_time ();
616} 1319}
617 1320
618#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
619ev_tstamp 1322ev_tstamp
620ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
621{ 1324{
622 return ev_rt_now; 1325 return ev_rt_now;
623} 1326}
624#endif 1327#endif
625 1328
626void 1329void
627ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
628{ 1331{
629 if (delay > 0.) 1332 if (delay > 0.)
630 { 1333 {
631#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
632 struct timespec ts; 1335 struct timespec ts;
633 1336
634 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
635 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
636
637 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
638#elif defined(_WIN32) 1339#elif defined _WIN32
639 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
640#else 1341#else
641 struct timeval tv; 1342 struct timeval tv;
642 1343
643 tv.tv_sec = (time_t)delay;
644 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
645
646 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
647 /* somehting not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
648 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
649 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
650#endif 1349#endif
651 } 1350 }
652} 1351}
653 1352
654/*****************************************************************************/ 1353/*****************************************************************************/
655 1354
656#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1355#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
657 1356
658/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
659/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
660inline_size int 1359inline_size int
661array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
662{ 1361{
663 int ncur = cur + 1; 1362 int ncur = cur + 1;
664 1363
665 do 1364 do
666 ncur <<= 1; 1365 ncur <<= 1;
667 while (cnt > ncur); 1366 while (cnt > ncur);
668 1367
669 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1368 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
670 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
671 { 1370 {
672 ncur *= elem; 1371 ncur *= elem;
673 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1372 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
674 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
676 } 1375 }
677 1376
678 return ncur; 1377 return ncur;
679} 1378}
680 1379
681static noinline void * 1380static void * noinline ecb_cold
682array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
683{ 1382{
684 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
685 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
686} 1385}
… …
689 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
690 1389
691#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
692 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
693 { \ 1392 { \
694 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
695 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
696 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
697 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
698 } 1397 }
699 1398
… …
717pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
718{ 1417{
719} 1418}
720 1419
721void noinline 1420void noinline
722ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
723{ 1422{
724 W w_ = (W)w; 1423 W w_ = (W)w;
725 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
726 1425
727 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
760} 1459}
761 1460
762/*****************************************************************************/ 1461/*****************************************************************************/
763 1462
764inline_speed void 1463inline_speed void
765fd_event (EV_P_ int fd, int revents) 1464fd_event_nocheck (EV_P_ int fd, int revents)
766{ 1465{
767 ANFD *anfd = anfds + fd; 1466 ANFD *anfd = anfds + fd;
768 ev_io *w; 1467 ev_io *w;
769 1468
770 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1469 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
774 if (ev) 1473 if (ev)
775 ev_feed_event (EV_A_ (W)w, ev); 1474 ev_feed_event (EV_A_ (W)w, ev);
776 } 1475 }
777} 1476}
778 1477
1478/* do not submit kernel events for fds that have reify set */
1479/* because that means they changed while we were polling for new events */
1480inline_speed void
1481fd_event (EV_P_ int fd, int revents)
1482{
1483 ANFD *anfd = anfds + fd;
1484
1485 if (expect_true (!anfd->reify))
1486 fd_event_nocheck (EV_A_ fd, revents);
1487}
1488
779void 1489void
780ev_feed_fd_event (EV_P_ int fd, int revents) 1490ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
781{ 1491{
782 if (fd >= 0 && fd < anfdmax) 1492 if (fd >= 0 && fd < anfdmax)
783 fd_event (EV_A_ fd, revents); 1493 fd_event_nocheck (EV_A_ fd, revents);
784} 1494}
785 1495
786/* make sure the external fd watch events are in-sync */ 1496/* make sure the external fd watch events are in-sync */
787/* with the kernel/libev internal state */ 1497/* with the kernel/libev internal state */
788inline_size void 1498inline_size void
789fd_reify (EV_P) 1499fd_reify (EV_P)
790{ 1500{
791 int i; 1501 int i;
792 1502
1503#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1504 for (i = 0; i < fdchangecnt; ++i)
1505 {
1506 int fd = fdchanges [i];
1507 ANFD *anfd = anfds + fd;
1508
1509 if (anfd->reify & EV__IOFDSET && anfd->head)
1510 {
1511 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1512
1513 if (handle != anfd->handle)
1514 {
1515 unsigned long arg;
1516
1517 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1518
1519 /* handle changed, but fd didn't - we need to do it in two steps */
1520 backend_modify (EV_A_ fd, anfd->events, 0);
1521 anfd->events = 0;
1522 anfd->handle = handle;
1523 }
1524 }
1525 }
1526#endif
1527
793 for (i = 0; i < fdchangecnt; ++i) 1528 for (i = 0; i < fdchangecnt; ++i)
794 { 1529 {
795 int fd = fdchanges [i]; 1530 int fd = fdchanges [i];
796 ANFD *anfd = anfds + fd; 1531 ANFD *anfd = anfds + fd;
797 ev_io *w; 1532 ev_io *w;
798 1533
799 unsigned char events = 0; 1534 unsigned char o_events = anfd->events;
1535 unsigned char o_reify = anfd->reify;
800 1536
801 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1537 anfd->reify = 0;
802 events |= (unsigned char)w->events;
803 1538
804#if EV_SELECT_IS_WINSOCKET 1539 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
805 if (events)
806 { 1540 {
807 unsigned long arg; 1541 anfd->events = 0;
808 #ifdef EV_FD_TO_WIN32_HANDLE 1542
809 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1543 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
810 #else 1544 anfd->events |= (unsigned char)w->events;
811 anfd->handle = _get_osfhandle (fd); 1545
812 #endif 1546 if (o_events != anfd->events)
813 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1547 o_reify = EV__IOFDSET; /* actually |= */
814 } 1548 }
815#endif
816 1549
817 { 1550 if (o_reify & EV__IOFDSET)
818 unsigned char o_events = anfd->events;
819 unsigned char o_reify = anfd->reify;
820
821 anfd->reify = 0;
822 anfd->events = events;
823
824 if (o_events != events || o_reify & EV__IOFDSET)
825 backend_modify (EV_A_ fd, o_events, events); 1551 backend_modify (EV_A_ fd, o_events, anfd->events);
826 }
827 } 1552 }
828 1553
829 fdchangecnt = 0; 1554 fdchangecnt = 0;
830} 1555}
831 1556
… …
843 fdchanges [fdchangecnt - 1] = fd; 1568 fdchanges [fdchangecnt - 1] = fd;
844 } 1569 }
845} 1570}
846 1571
847/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1572/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
848inline_speed void 1573inline_speed void ecb_cold
849fd_kill (EV_P_ int fd) 1574fd_kill (EV_P_ int fd)
850{ 1575{
851 ev_io *w; 1576 ev_io *w;
852 1577
853 while ((w = (ev_io *)anfds [fd].head)) 1578 while ((w = (ev_io *)anfds [fd].head))
… …
855 ev_io_stop (EV_A_ w); 1580 ev_io_stop (EV_A_ w);
856 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1581 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
857 } 1582 }
858} 1583}
859 1584
860/* check whether the given fd is atcually valid, for error recovery */ 1585/* check whether the given fd is actually valid, for error recovery */
861inline_size int 1586inline_size int ecb_cold
862fd_valid (int fd) 1587fd_valid (int fd)
863{ 1588{
864#ifdef _WIN32 1589#ifdef _WIN32
865 return _get_osfhandle (fd) != -1; 1590 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
866#else 1591#else
867 return fcntl (fd, F_GETFD) != -1; 1592 return fcntl (fd, F_GETFD) != -1;
868#endif 1593#endif
869} 1594}
870 1595
871/* called on EBADF to verify fds */ 1596/* called on EBADF to verify fds */
872static void noinline 1597static void noinline ecb_cold
873fd_ebadf (EV_P) 1598fd_ebadf (EV_P)
874{ 1599{
875 int fd; 1600 int fd;
876 1601
877 for (fd = 0; fd < anfdmax; ++fd) 1602 for (fd = 0; fd < anfdmax; ++fd)
… …
879 if (!fd_valid (fd) && errno == EBADF) 1604 if (!fd_valid (fd) && errno == EBADF)
880 fd_kill (EV_A_ fd); 1605 fd_kill (EV_A_ fd);
881} 1606}
882 1607
883/* called on ENOMEM in select/poll to kill some fds and retry */ 1608/* called on ENOMEM in select/poll to kill some fds and retry */
884static void noinline 1609static void noinline ecb_cold
885fd_enomem (EV_P) 1610fd_enomem (EV_P)
886{ 1611{
887 int fd; 1612 int fd;
888 1613
889 for (fd = anfdmax; fd--; ) 1614 for (fd = anfdmax; fd--; )
890 if (anfds [fd].events) 1615 if (anfds [fd].events)
891 { 1616 {
892 fd_kill (EV_A_ fd); 1617 fd_kill (EV_A_ fd);
893 return; 1618 break;
894 } 1619 }
895} 1620}
896 1621
897/* usually called after fork if backend needs to re-arm all fds from scratch */ 1622/* usually called after fork if backend needs to re-arm all fds from scratch */
898static void noinline 1623static void noinline
… …
903 for (fd = 0; fd < anfdmax; ++fd) 1628 for (fd = 0; fd < anfdmax; ++fd)
904 if (anfds [fd].events) 1629 if (anfds [fd].events)
905 { 1630 {
906 anfds [fd].events = 0; 1631 anfds [fd].events = 0;
907 anfds [fd].emask = 0; 1632 anfds [fd].emask = 0;
908 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1633 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
909 } 1634 }
910} 1635}
911 1636
1637/* used to prepare libev internal fd's */
1638/* this is not fork-safe */
1639inline_speed void
1640fd_intern (int fd)
1641{
1642#ifdef _WIN32
1643 unsigned long arg = 1;
1644 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1645#else
1646 fcntl (fd, F_SETFD, FD_CLOEXEC);
1647 fcntl (fd, F_SETFL, O_NONBLOCK);
1648#endif
1649}
1650
912/*****************************************************************************/ 1651/*****************************************************************************/
913 1652
914/* 1653/*
915 * the heap functions want a real array index. array index 0 uis guaranteed to not 1654 * the heap functions want a real array index. array index 0 is guaranteed to not
916 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1655 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
917 * the branching factor of the d-tree. 1656 * the branching factor of the d-tree.
918 */ 1657 */
919 1658
920/* 1659/*
… …
988 1727
989 for (;;) 1728 for (;;)
990 { 1729 {
991 int c = k << 1; 1730 int c = k << 1;
992 1731
993 if (c > N + HEAP0 - 1) 1732 if (c >= N + HEAP0)
994 break; 1733 break;
995 1734
996 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1735 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
997 ? 1 : 0; 1736 ? 1 : 0;
998 1737
… …
1034 1773
1035/* move an element suitably so it is in a correct place */ 1774/* move an element suitably so it is in a correct place */
1036inline_size void 1775inline_size void
1037adjustheap (ANHE *heap, int N, int k) 1776adjustheap (ANHE *heap, int N, int k)
1038{ 1777{
1039 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1778 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1040 upheap (heap, k); 1779 upheap (heap, k);
1041 else 1780 else
1042 downheap (heap, N, k); 1781 downheap (heap, N, k);
1043} 1782}
1044 1783
… …
1057/*****************************************************************************/ 1796/*****************************************************************************/
1058 1797
1059/* associate signal watchers to a signal signal */ 1798/* associate signal watchers to a signal signal */
1060typedef struct 1799typedef struct
1061{ 1800{
1801 EV_ATOMIC_T pending;
1802#if EV_MULTIPLICITY
1803 EV_P;
1804#endif
1062 WL head; 1805 WL head;
1063 EV_ATOMIC_T gotsig;
1064} ANSIG; 1806} ANSIG;
1065 1807
1066static ANSIG *signals; 1808static ANSIG signals [EV_NSIG - 1];
1067static int signalmax;
1068
1069static EV_ATOMIC_T gotsig;
1070 1809
1071/*****************************************************************************/ 1810/*****************************************************************************/
1072 1811
1073/* used to prepare libev internal fd's */ 1812#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1074/* this is not fork-safe */
1075inline_speed void
1076fd_intern (int fd)
1077{
1078#ifdef _WIN32
1079 unsigned long arg = 1;
1080 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1081#else
1082 fcntl (fd, F_SETFD, FD_CLOEXEC);
1083 fcntl (fd, F_SETFL, O_NONBLOCK);
1084#endif
1085}
1086 1813
1087static void noinline 1814static void noinline ecb_cold
1088evpipe_init (EV_P) 1815evpipe_init (EV_P)
1089{ 1816{
1090 if (!ev_is_active (&pipe_w)) 1817 if (!ev_is_active (&pipe_w))
1091 { 1818 {
1092#if EV_USE_EVENTFD 1819# if EV_USE_EVENTFD
1820 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1821 if (evfd < 0 && errno == EINVAL)
1093 if ((evfd = eventfd (0, 0)) >= 0) 1822 evfd = eventfd (0, 0);
1823
1824 if (evfd >= 0)
1094 { 1825 {
1095 evpipe [0] = -1; 1826 evpipe [0] = -1;
1096 fd_intern (evfd); 1827 fd_intern (evfd); /* doing it twice doesn't hurt */
1097 ev_io_set (&pipe_w, evfd, EV_READ); 1828 ev_io_set (&pipe_w, evfd, EV_READ);
1098 } 1829 }
1099 else 1830 else
1100#endif 1831# endif
1101 { 1832 {
1102 while (pipe (evpipe)) 1833 while (pipe (evpipe))
1103 ev_syserr ("(libev) error creating signal/async pipe"); 1834 ev_syserr ("(libev) error creating signal/async pipe");
1104 1835
1105 fd_intern (evpipe [0]); 1836 fd_intern (evpipe [0]);
… …
1110 ev_io_start (EV_A_ &pipe_w); 1841 ev_io_start (EV_A_ &pipe_w);
1111 ev_unref (EV_A); /* watcher should not keep loop alive */ 1842 ev_unref (EV_A); /* watcher should not keep loop alive */
1112 } 1843 }
1113} 1844}
1114 1845
1115inline_size void 1846inline_speed void
1116evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1847evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1117{ 1848{
1118 if (!*flag) 1849 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1850
1851 if (expect_true (*flag))
1852 return;
1853
1854 *flag = 1;
1855
1856 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1857
1858 pipe_write_skipped = 1;
1859
1860 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1861
1862 if (pipe_write_wanted)
1119 { 1863 {
1864 int old_errno;
1865
1866 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1867
1120 int old_errno = errno; /* save errno because write might clobber it */ 1868 old_errno = errno; /* save errno because write will clobber it */
1121
1122 *flag = 1;
1123 1869
1124#if EV_USE_EVENTFD 1870#if EV_USE_EVENTFD
1125 if (evfd >= 0) 1871 if (evfd >= 0)
1126 { 1872 {
1127 uint64_t counter = 1; 1873 uint64_t counter = 1;
1128 write (evfd, &counter, sizeof (uint64_t)); 1874 write (evfd, &counter, sizeof (uint64_t));
1129 } 1875 }
1130 else 1876 else
1131#endif 1877#endif
1878 {
1879 /* win32 people keep sending patches that change this write() to send() */
1880 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1881 /* so when you think this write should be a send instead, please find out */
1882 /* where your send() is from - it's definitely not the microsoft send, and */
1883 /* tell me. thank you. */
1884 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1885 /* check the ev documentation on how to use this flag */
1132 write (evpipe [1], &old_errno, 1); 1886 write (evpipe [1], &(evpipe [1]), 1);
1887 }
1133 1888
1134 errno = old_errno; 1889 errno = old_errno;
1135 } 1890 }
1136} 1891}
1137 1892
1138/* called whenever the libev signal pipe */ 1893/* called whenever the libev signal pipe */
1139/* got some events (signal, async) */ 1894/* got some events (signal, async) */
1140static void 1895static void
1141pipecb (EV_P_ ev_io *iow, int revents) 1896pipecb (EV_P_ ev_io *iow, int revents)
1142{ 1897{
1898 int i;
1899
1900 if (revents & EV_READ)
1901 {
1143#if EV_USE_EVENTFD 1902#if EV_USE_EVENTFD
1144 if (evfd >= 0) 1903 if (evfd >= 0)
1145 { 1904 {
1146 uint64_t counter; 1905 uint64_t counter;
1147 read (evfd, &counter, sizeof (uint64_t)); 1906 read (evfd, &counter, sizeof (uint64_t));
1148 } 1907 }
1149 else 1908 else
1150#endif 1909#endif
1151 { 1910 {
1152 char dummy; 1911 char dummy;
1912 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1153 read (evpipe [0], &dummy, 1); 1913 read (evpipe [0], &dummy, 1);
1914 }
1915 }
1916
1917 pipe_write_skipped = 0;
1918
1919 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1920
1921#if EV_SIGNAL_ENABLE
1922 if (sig_pending)
1154 } 1923 {
1924 sig_pending = 0;
1155 1925
1156 if (gotsig && ev_is_default_loop (EV_A)) 1926 ECB_MEMORY_FENCE_RELEASE;
1157 {
1158 int signum;
1159 gotsig = 0;
1160 1927
1161 for (signum = signalmax; signum--; ) 1928 for (i = EV_NSIG - 1; i--; )
1162 if (signals [signum].gotsig) 1929 if (expect_false (signals [i].pending))
1163 ev_feed_signal_event (EV_A_ signum + 1); 1930 ev_feed_signal_event (EV_A_ i + 1);
1164 } 1931 }
1932#endif
1165 1933
1166#if EV_ASYNC_ENABLE 1934#if EV_ASYNC_ENABLE
1167 if (gotasync) 1935 if (async_pending)
1168 { 1936 {
1169 int i; 1937 async_pending = 0;
1170 gotasync = 0; 1938
1939 ECB_MEMORY_FENCE_RELEASE;
1171 1940
1172 for (i = asynccnt; i--; ) 1941 for (i = asynccnt; i--; )
1173 if (asyncs [i]->sent) 1942 if (asyncs [i]->sent)
1174 { 1943 {
1175 asyncs [i]->sent = 0; 1944 asyncs [i]->sent = 0;
… …
1179#endif 1948#endif
1180} 1949}
1181 1950
1182/*****************************************************************************/ 1951/*****************************************************************************/
1183 1952
1953void
1954ev_feed_signal (int signum) EV_THROW
1955{
1956#if EV_MULTIPLICITY
1957 EV_P = signals [signum - 1].loop;
1958
1959 if (!EV_A)
1960 return;
1961#endif
1962
1963 if (!ev_active (&pipe_w))
1964 return;
1965
1966 signals [signum - 1].pending = 1;
1967 evpipe_write (EV_A_ &sig_pending);
1968}
1969
1184static void 1970static void
1185ev_sighandler (int signum) 1971ev_sighandler (int signum)
1186{ 1972{
1973#ifdef _WIN32
1974 signal (signum, ev_sighandler);
1975#endif
1976
1977 ev_feed_signal (signum);
1978}
1979
1980void noinline
1981ev_feed_signal_event (EV_P_ int signum) EV_THROW
1982{
1983 WL w;
1984
1985 if (expect_false (signum <= 0 || signum > EV_NSIG))
1986 return;
1987
1988 --signum;
1989
1187#if EV_MULTIPLICITY 1990#if EV_MULTIPLICITY
1188 struct ev_loop *loop = &default_loop_struct; 1991 /* it is permissible to try to feed a signal to the wrong loop */
1189#endif 1992 /* or, likely more useful, feeding a signal nobody is waiting for */
1190 1993
1191#if _WIN32 1994 if (expect_false (signals [signum].loop != EV_A))
1192 signal (signum, ev_sighandler);
1193#endif
1194
1195 signals [signum - 1].gotsig = 1;
1196 evpipe_write (EV_A_ &gotsig);
1197}
1198
1199void noinline
1200ev_feed_signal_event (EV_P_ int signum)
1201{
1202 WL w;
1203
1204#if EV_MULTIPLICITY
1205 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1206#endif
1207
1208 --signum;
1209
1210 if (signum < 0 || signum >= signalmax)
1211 return; 1995 return;
1996#endif
1212 1997
1213 signals [signum].gotsig = 0; 1998 signals [signum].pending = 0;
1214 1999
1215 for (w = signals [signum].head; w; w = w->next) 2000 for (w = signals [signum].head; w; w = w->next)
1216 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2001 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1217} 2002}
1218 2003
2004#if EV_USE_SIGNALFD
2005static void
2006sigfdcb (EV_P_ ev_io *iow, int revents)
2007{
2008 struct signalfd_siginfo si[2], *sip; /* these structs are big */
2009
2010 for (;;)
2011 {
2012 ssize_t res = read (sigfd, si, sizeof (si));
2013
2014 /* not ISO-C, as res might be -1, but works with SuS */
2015 for (sip = si; (char *)sip < (char *)si + res; ++sip)
2016 ev_feed_signal_event (EV_A_ sip->ssi_signo);
2017
2018 if (res < (ssize_t)sizeof (si))
2019 break;
2020 }
2021}
2022#endif
2023
2024#endif
2025
1219/*****************************************************************************/ 2026/*****************************************************************************/
1220 2027
2028#if EV_CHILD_ENABLE
1221static WL childs [EV_PID_HASHSIZE]; 2029static WL childs [EV_PID_HASHSIZE];
1222
1223#ifndef _WIN32
1224 2030
1225static ev_signal childev; 2031static ev_signal childev;
1226 2032
1227#ifndef WIFCONTINUED 2033#ifndef WIFCONTINUED
1228# define WIFCONTINUED(status) 0 2034# define WIFCONTINUED(status) 0
… …
1233child_reap (EV_P_ int chain, int pid, int status) 2039child_reap (EV_P_ int chain, int pid, int status)
1234{ 2040{
1235 ev_child *w; 2041 ev_child *w;
1236 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2042 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1237 2043
1238 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2044 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1239 { 2045 {
1240 if ((w->pid == pid || !w->pid) 2046 if ((w->pid == pid || !w->pid)
1241 && (!traced || (w->flags & 1))) 2047 && (!traced || (w->flags & 1)))
1242 { 2048 {
1243 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2049 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1268 /* make sure we are called again until all children have been reaped */ 2074 /* make sure we are called again until all children have been reaped */
1269 /* we need to do it this way so that the callback gets called before we continue */ 2075 /* we need to do it this way so that the callback gets called before we continue */
1270 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2076 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1271 2077
1272 child_reap (EV_A_ pid, pid, status); 2078 child_reap (EV_A_ pid, pid, status);
1273 if (EV_PID_HASHSIZE > 1) 2079 if ((EV_PID_HASHSIZE) > 1)
1274 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2080 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1275} 2081}
1276 2082
1277#endif 2083#endif
1278 2084
1279/*****************************************************************************/ 2085/*****************************************************************************/
1280 2086
2087#if EV_USE_IOCP
2088# include "ev_iocp.c"
2089#endif
1281#if EV_USE_PORT 2090#if EV_USE_PORT
1282# include "ev_port.c" 2091# include "ev_port.c"
1283#endif 2092#endif
1284#if EV_USE_KQUEUE 2093#if EV_USE_KQUEUE
1285# include "ev_kqueue.c" 2094# include "ev_kqueue.c"
… …
1292#endif 2101#endif
1293#if EV_USE_SELECT 2102#if EV_USE_SELECT
1294# include "ev_select.c" 2103# include "ev_select.c"
1295#endif 2104#endif
1296 2105
1297int 2106int ecb_cold
1298ev_version_major (void) 2107ev_version_major (void) EV_THROW
1299{ 2108{
1300 return EV_VERSION_MAJOR; 2109 return EV_VERSION_MAJOR;
1301} 2110}
1302 2111
1303int 2112int ecb_cold
1304ev_version_minor (void) 2113ev_version_minor (void) EV_THROW
1305{ 2114{
1306 return EV_VERSION_MINOR; 2115 return EV_VERSION_MINOR;
1307} 2116}
1308 2117
1309/* return true if we are running with elevated privileges and should ignore env variables */ 2118/* return true if we are running with elevated privileges and should ignore env variables */
1310int inline_size 2119int inline_size ecb_cold
1311enable_secure (void) 2120enable_secure (void)
1312{ 2121{
1313#ifdef _WIN32 2122#ifdef _WIN32
1314 return 0; 2123 return 0;
1315#else 2124#else
1316 return getuid () != geteuid () 2125 return getuid () != geteuid ()
1317 || getgid () != getegid (); 2126 || getgid () != getegid ();
1318#endif 2127#endif
1319} 2128}
1320 2129
1321unsigned int 2130unsigned int ecb_cold
1322ev_supported_backends (void) 2131ev_supported_backends (void) EV_THROW
1323{ 2132{
1324 unsigned int flags = 0; 2133 unsigned int flags = 0;
1325 2134
1326 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2135 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1327 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2136 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1330 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2139 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1331 2140
1332 return flags; 2141 return flags;
1333} 2142}
1334 2143
1335unsigned int 2144unsigned int ecb_cold
1336ev_recommended_backends (void) 2145ev_recommended_backends (void) EV_THROW
1337{ 2146{
1338 unsigned int flags = ev_supported_backends (); 2147 unsigned int flags = ev_supported_backends ();
1339 2148
1340#ifndef __NetBSD__ 2149#ifndef __NetBSD__
1341 /* kqueue is borked on everything but netbsd apparently */ 2150 /* kqueue is borked on everything but netbsd apparently */
… …
1345#ifdef __APPLE__ 2154#ifdef __APPLE__
1346 /* only select works correctly on that "unix-certified" platform */ 2155 /* only select works correctly on that "unix-certified" platform */
1347 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2156 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1348 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2157 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1349#endif 2158#endif
2159#ifdef __FreeBSD__
2160 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2161#endif
1350 2162
1351 return flags; 2163 return flags;
1352} 2164}
1353 2165
2166unsigned int ecb_cold
2167ev_embeddable_backends (void) EV_THROW
2168{
2169 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2170
2171 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2172 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2173 flags &= ~EVBACKEND_EPOLL;
2174
2175 return flags;
2176}
2177
1354unsigned int 2178unsigned int
1355ev_embeddable_backends (void) 2179ev_backend (EV_P) EV_THROW
1356{ 2180{
1357 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2181 return backend;
1358
1359 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1360 /* please fix it and tell me how to detect the fix */
1361 flags &= ~EVBACKEND_EPOLL;
1362
1363 return flags;
1364} 2182}
1365 2183
2184#if EV_FEATURE_API
1366unsigned int 2185unsigned int
1367ev_backend (EV_P) 2186ev_iteration (EV_P) EV_THROW
1368{ 2187{
1369 return backend; 2188 return loop_count;
1370} 2189}
1371 2190
1372#if EV_MINIMAL < 2
1373unsigned int 2191unsigned int
1374ev_loop_count (EV_P) 2192ev_depth (EV_P) EV_THROW
1375{
1376 return loop_count;
1377}
1378
1379unsigned int
1380ev_loop_depth (EV_P)
1381{ 2193{
1382 return loop_depth; 2194 return loop_depth;
1383} 2195}
1384 2196
1385void 2197void
1386ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2198ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1387{ 2199{
1388 io_blocktime = interval; 2200 io_blocktime = interval;
1389} 2201}
1390 2202
1391void 2203void
1392ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2204ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1393{ 2205{
1394 timeout_blocktime = interval; 2206 timeout_blocktime = interval;
1395} 2207}
1396 2208
1397void 2209void
1398ev_set_userdata (EV_P_ void *data) 2210ev_set_userdata (EV_P_ void *data) EV_THROW
1399{ 2211{
1400 userdata = data; 2212 userdata = data;
1401} 2213}
1402 2214
1403void * 2215void *
1404ev_userdata (EV_P) 2216ev_userdata (EV_P) EV_THROW
1405{ 2217{
1406 return userdata; 2218 return userdata;
1407} 2219}
1408 2220
2221void
1409void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2222ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1410{ 2223{
1411 invoke_cb = invoke_pending_cb; 2224 invoke_cb = invoke_pending_cb;
1412} 2225}
1413 2226
1414void ev_set_blocking_cb (EV_P_ void (*suspend_cb_)(EV_P), void (*resume_cb_)(EV_P)) 2227void
2228ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1415{ 2229{
1416 suspend_cb = suspend_cb_; 2230 release_cb = release;
1417 resume_cb = resume_cb_; 2231 acquire_cb = acquire;
1418} 2232}
1419#endif 2233#endif
1420 2234
1421/* initialise a loop structure, must be zero-initialised */ 2235/* initialise a loop structure, must be zero-initialised */
1422static void noinline 2236static void noinline ecb_cold
1423loop_init (EV_P_ unsigned int flags) 2237loop_init (EV_P_ unsigned int flags) EV_THROW
1424{ 2238{
1425 if (!backend) 2239 if (!backend)
1426 { 2240 {
2241 origflags = flags;
2242
1427#if EV_USE_REALTIME 2243#if EV_USE_REALTIME
1428 if (!have_realtime) 2244 if (!have_realtime)
1429 { 2245 {
1430 struct timespec ts; 2246 struct timespec ts;
1431 2247
… …
1442 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2258 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1443 have_monotonic = 1; 2259 have_monotonic = 1;
1444 } 2260 }
1445#endif 2261#endif
1446 2262
1447 ev_rt_now = ev_time ();
1448 mn_now = get_clock ();
1449 now_floor = mn_now;
1450 rtmn_diff = ev_rt_now - mn_now;
1451#if EV_MINIMAL < 2
1452 invoke_cb = ev_invoke_pending;
1453#endif
1454
1455 io_blocktime = 0.;
1456 timeout_blocktime = 0.;
1457 backend = 0;
1458 backend_fd = -1;
1459 gotasync = 0;
1460#if EV_USE_INOTIFY
1461 fs_fd = -2;
1462#endif
1463
1464 /* pid check not overridable via env */ 2263 /* pid check not overridable via env */
1465#ifndef _WIN32 2264#ifndef _WIN32
1466 if (flags & EVFLAG_FORKCHECK) 2265 if (flags & EVFLAG_FORKCHECK)
1467 curpid = getpid (); 2266 curpid = getpid ();
1468#endif 2267#endif
… …
1470 if (!(flags & EVFLAG_NOENV) 2269 if (!(flags & EVFLAG_NOENV)
1471 && !enable_secure () 2270 && !enable_secure ()
1472 && getenv ("LIBEV_FLAGS")) 2271 && getenv ("LIBEV_FLAGS"))
1473 flags = atoi (getenv ("LIBEV_FLAGS")); 2272 flags = atoi (getenv ("LIBEV_FLAGS"));
1474 2273
1475 if (!(flags & 0x0000ffffU)) 2274 ev_rt_now = ev_time ();
2275 mn_now = get_clock ();
2276 now_floor = mn_now;
2277 rtmn_diff = ev_rt_now - mn_now;
2278#if EV_FEATURE_API
2279 invoke_cb = ev_invoke_pending;
2280#endif
2281
2282 io_blocktime = 0.;
2283 timeout_blocktime = 0.;
2284 backend = 0;
2285 backend_fd = -1;
2286 sig_pending = 0;
2287#if EV_ASYNC_ENABLE
2288 async_pending = 0;
2289#endif
2290 pipe_write_skipped = 0;
2291 pipe_write_wanted = 0;
2292#if EV_USE_INOTIFY
2293 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2294#endif
2295#if EV_USE_SIGNALFD
2296 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2297#endif
2298
2299 if (!(flags & EVBACKEND_MASK))
1476 flags |= ev_recommended_backends (); 2300 flags |= ev_recommended_backends ();
1477 2301
2302#if EV_USE_IOCP
2303 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2304#endif
1478#if EV_USE_PORT 2305#if EV_USE_PORT
1479 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2306 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1480#endif 2307#endif
1481#if EV_USE_KQUEUE 2308#if EV_USE_KQUEUE
1482 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2309 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1491 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2318 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1492#endif 2319#endif
1493 2320
1494 ev_prepare_init (&pending_w, pendingcb); 2321 ev_prepare_init (&pending_w, pendingcb);
1495 2322
2323#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1496 ev_init (&pipe_w, pipecb); 2324 ev_init (&pipe_w, pipecb);
1497 ev_set_priority (&pipe_w, EV_MAXPRI); 2325 ev_set_priority (&pipe_w, EV_MAXPRI);
2326#endif
1498 } 2327 }
1499} 2328}
1500 2329
1501/* free up a loop structure */ 2330/* free up a loop structure */
1502static void noinline 2331void ecb_cold
1503loop_destroy (EV_P) 2332ev_loop_destroy (EV_P)
1504{ 2333{
1505 int i; 2334 int i;
1506 2335
2336#if EV_MULTIPLICITY
2337 /* mimic free (0) */
2338 if (!EV_A)
2339 return;
2340#endif
2341
2342#if EV_CLEANUP_ENABLE
2343 /* queue cleanup watchers (and execute them) */
2344 if (expect_false (cleanupcnt))
2345 {
2346 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2347 EV_INVOKE_PENDING;
2348 }
2349#endif
2350
2351#if EV_CHILD_ENABLE
2352 if (ev_is_active (&childev))
2353 {
2354 ev_ref (EV_A); /* child watcher */
2355 ev_signal_stop (EV_A_ &childev);
2356 }
2357#endif
2358
1507 if (ev_is_active (&pipe_w)) 2359 if (ev_is_active (&pipe_w))
1508 { 2360 {
1509 ev_ref (EV_A); /* signal watcher */ 2361 /*ev_ref (EV_A);*/
1510 ev_io_stop (EV_A_ &pipe_w); 2362 /*ev_io_stop (EV_A_ &pipe_w);*/
1511 2363
1512#if EV_USE_EVENTFD 2364#if EV_USE_EVENTFD
1513 if (evfd >= 0) 2365 if (evfd >= 0)
1514 close (evfd); 2366 close (evfd);
1515#endif 2367#endif
1516 2368
1517 if (evpipe [0] >= 0) 2369 if (evpipe [0] >= 0)
1518 { 2370 {
1519 close (evpipe [0]); 2371 EV_WIN32_CLOSE_FD (evpipe [0]);
1520 close (evpipe [1]); 2372 EV_WIN32_CLOSE_FD (evpipe [1]);
1521 } 2373 }
1522 } 2374 }
2375
2376#if EV_USE_SIGNALFD
2377 if (ev_is_active (&sigfd_w))
2378 close (sigfd);
2379#endif
1523 2380
1524#if EV_USE_INOTIFY 2381#if EV_USE_INOTIFY
1525 if (fs_fd >= 0) 2382 if (fs_fd >= 0)
1526 close (fs_fd); 2383 close (fs_fd);
1527#endif 2384#endif
1528 2385
1529 if (backend_fd >= 0) 2386 if (backend_fd >= 0)
1530 close (backend_fd); 2387 close (backend_fd);
1531 2388
2389#if EV_USE_IOCP
2390 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2391#endif
1532#if EV_USE_PORT 2392#if EV_USE_PORT
1533 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2393 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1534#endif 2394#endif
1535#if EV_USE_KQUEUE 2395#if EV_USE_KQUEUE
1536 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2396 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1551#if EV_IDLE_ENABLE 2411#if EV_IDLE_ENABLE
1552 array_free (idle, [i]); 2412 array_free (idle, [i]);
1553#endif 2413#endif
1554 } 2414 }
1555 2415
1556 ev_free (anfds); anfdmax = 0; 2416 ev_free (anfds); anfds = 0; anfdmax = 0;
1557 2417
1558 /* have to use the microsoft-never-gets-it-right macro */ 2418 /* have to use the microsoft-never-gets-it-right macro */
1559 array_free (rfeed, EMPTY); 2419 array_free (rfeed, EMPTY);
1560 array_free (fdchange, EMPTY); 2420 array_free (fdchange, EMPTY);
1561 array_free (timer, EMPTY); 2421 array_free (timer, EMPTY);
… …
1563 array_free (periodic, EMPTY); 2423 array_free (periodic, EMPTY);
1564#endif 2424#endif
1565#if EV_FORK_ENABLE 2425#if EV_FORK_ENABLE
1566 array_free (fork, EMPTY); 2426 array_free (fork, EMPTY);
1567#endif 2427#endif
2428#if EV_CLEANUP_ENABLE
2429 array_free (cleanup, EMPTY);
2430#endif
1568 array_free (prepare, EMPTY); 2431 array_free (prepare, EMPTY);
1569 array_free (check, EMPTY); 2432 array_free (check, EMPTY);
1570#if EV_ASYNC_ENABLE 2433#if EV_ASYNC_ENABLE
1571 array_free (async, EMPTY); 2434 array_free (async, EMPTY);
1572#endif 2435#endif
1573 2436
1574 backend = 0; 2437 backend = 0;
2438
2439#if EV_MULTIPLICITY
2440 if (ev_is_default_loop (EV_A))
2441#endif
2442 ev_default_loop_ptr = 0;
2443#if EV_MULTIPLICITY
2444 else
2445 ev_free (EV_A);
2446#endif
1575} 2447}
1576 2448
1577#if EV_USE_INOTIFY 2449#if EV_USE_INOTIFY
1578inline_size void infy_fork (EV_P); 2450inline_size void infy_fork (EV_P);
1579#endif 2451#endif
… …
1594 infy_fork (EV_A); 2466 infy_fork (EV_A);
1595#endif 2467#endif
1596 2468
1597 if (ev_is_active (&pipe_w)) 2469 if (ev_is_active (&pipe_w))
1598 { 2470 {
1599 /* this "locks" the handlers against writing to the pipe */ 2471 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1600 /* while we modify the fd vars */
1601 gotsig = 1;
1602#if EV_ASYNC_ENABLE
1603 gotasync = 1;
1604#endif
1605 2472
1606 ev_ref (EV_A); 2473 ev_ref (EV_A);
1607 ev_io_stop (EV_A_ &pipe_w); 2474 ev_io_stop (EV_A_ &pipe_w);
1608 2475
1609#if EV_USE_EVENTFD 2476#if EV_USE_EVENTFD
… …
1611 close (evfd); 2478 close (evfd);
1612#endif 2479#endif
1613 2480
1614 if (evpipe [0] >= 0) 2481 if (evpipe [0] >= 0)
1615 { 2482 {
1616 close (evpipe [0]); 2483 EV_WIN32_CLOSE_FD (evpipe [0]);
1617 close (evpipe [1]); 2484 EV_WIN32_CLOSE_FD (evpipe [1]);
1618 } 2485 }
1619 2486
2487#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1620 evpipe_init (EV_A); 2488 evpipe_init (EV_A);
1621 /* now iterate over everything, in case we missed something */ 2489 /* now iterate over everything, in case we missed something */
1622 pipecb (EV_A_ &pipe_w, EV_READ); 2490 pipecb (EV_A_ &pipe_w, EV_READ);
2491#endif
1623 } 2492 }
1624 2493
1625 postfork = 0; 2494 postfork = 0;
1626} 2495}
1627 2496
1628#if EV_MULTIPLICITY 2497#if EV_MULTIPLICITY
1629 2498
1630struct ev_loop * 2499struct ev_loop * ecb_cold
1631ev_loop_new (unsigned int flags) 2500ev_loop_new (unsigned int flags) EV_THROW
1632{ 2501{
1633 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2502 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1634 2503
1635 memset (loop, 0, sizeof (struct ev_loop)); 2504 memset (EV_A, 0, sizeof (struct ev_loop));
1636
1637 loop_init (EV_A_ flags); 2505 loop_init (EV_A_ flags);
1638 2506
1639 if (ev_backend (EV_A)) 2507 if (ev_backend (EV_A))
1640 return loop; 2508 return EV_A;
1641 2509
2510 ev_free (EV_A);
1642 return 0; 2511 return 0;
1643} 2512}
1644 2513
1645void
1646ev_loop_destroy (EV_P)
1647{
1648 loop_destroy (EV_A);
1649 ev_free (loop);
1650}
1651
1652void
1653ev_loop_fork (EV_P)
1654{
1655 postfork = 1; /* must be in line with ev_default_fork */
1656}
1657#endif /* multiplicity */ 2514#endif /* multiplicity */
1658 2515
1659#if EV_VERIFY 2516#if EV_VERIFY
1660static void noinline 2517static void noinline ecb_cold
1661verify_watcher (EV_P_ W w) 2518verify_watcher (EV_P_ W w)
1662{ 2519{
1663 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2520 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1664 2521
1665 if (w->pending) 2522 if (w->pending)
1666 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2523 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1667} 2524}
1668 2525
1669static void noinline 2526static void noinline ecb_cold
1670verify_heap (EV_P_ ANHE *heap, int N) 2527verify_heap (EV_P_ ANHE *heap, int N)
1671{ 2528{
1672 int i; 2529 int i;
1673 2530
1674 for (i = HEAP0; i < N + HEAP0; ++i) 2531 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1679 2536
1680 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2537 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1681 } 2538 }
1682} 2539}
1683 2540
1684static void noinline 2541static void noinline ecb_cold
1685array_verify (EV_P_ W *ws, int cnt) 2542array_verify (EV_P_ W *ws, int cnt)
1686{ 2543{
1687 while (cnt--) 2544 while (cnt--)
1688 { 2545 {
1689 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2546 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1690 verify_watcher (EV_A_ ws [cnt]); 2547 verify_watcher (EV_A_ ws [cnt]);
1691 } 2548 }
1692} 2549}
1693#endif 2550#endif
1694 2551
1695#if EV_MINIMAL < 2 2552#if EV_FEATURE_API
1696void 2553void ecb_cold
1697ev_loop_verify (EV_P) 2554ev_verify (EV_P) EV_THROW
1698{ 2555{
1699#if EV_VERIFY 2556#if EV_VERIFY
1700 int i; 2557 int i;
1701 WL w; 2558 WL w;
1702 2559
… …
1736#if EV_FORK_ENABLE 2593#if EV_FORK_ENABLE
1737 assert (forkmax >= forkcnt); 2594 assert (forkmax >= forkcnt);
1738 array_verify (EV_A_ (W *)forks, forkcnt); 2595 array_verify (EV_A_ (W *)forks, forkcnt);
1739#endif 2596#endif
1740 2597
2598#if EV_CLEANUP_ENABLE
2599 assert (cleanupmax >= cleanupcnt);
2600 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2601#endif
2602
1741#if EV_ASYNC_ENABLE 2603#if EV_ASYNC_ENABLE
1742 assert (asyncmax >= asynccnt); 2604 assert (asyncmax >= asynccnt);
1743 array_verify (EV_A_ (W *)asyncs, asynccnt); 2605 array_verify (EV_A_ (W *)asyncs, asynccnt);
1744#endif 2606#endif
1745 2607
2608#if EV_PREPARE_ENABLE
1746 assert (preparemax >= preparecnt); 2609 assert (preparemax >= preparecnt);
1747 array_verify (EV_A_ (W *)prepares, preparecnt); 2610 array_verify (EV_A_ (W *)prepares, preparecnt);
2611#endif
1748 2612
2613#if EV_CHECK_ENABLE
1749 assert (checkmax >= checkcnt); 2614 assert (checkmax >= checkcnt);
1750 array_verify (EV_A_ (W *)checks, checkcnt); 2615 array_verify (EV_A_ (W *)checks, checkcnt);
2616#endif
1751 2617
1752# if 0 2618# if 0
2619#if EV_CHILD_ENABLE
1753 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2620 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1754 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2621 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2622#endif
1755# endif 2623# endif
1756#endif 2624#endif
1757} 2625}
1758#endif 2626#endif
1759 2627
1760#if EV_MULTIPLICITY 2628#if EV_MULTIPLICITY
1761struct ev_loop * 2629struct ev_loop * ecb_cold
1762ev_default_loop_init (unsigned int flags)
1763#else 2630#else
1764int 2631int
2632#endif
1765ev_default_loop (unsigned int flags) 2633ev_default_loop (unsigned int flags) EV_THROW
1766#endif
1767{ 2634{
1768 if (!ev_default_loop_ptr) 2635 if (!ev_default_loop_ptr)
1769 { 2636 {
1770#if EV_MULTIPLICITY 2637#if EV_MULTIPLICITY
1771 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2638 EV_P = ev_default_loop_ptr = &default_loop_struct;
1772#else 2639#else
1773 ev_default_loop_ptr = 1; 2640 ev_default_loop_ptr = 1;
1774#endif 2641#endif
1775 2642
1776 loop_init (EV_A_ flags); 2643 loop_init (EV_A_ flags);
1777 2644
1778 if (ev_backend (EV_A)) 2645 if (ev_backend (EV_A))
1779 { 2646 {
1780#ifndef _WIN32 2647#if EV_CHILD_ENABLE
1781 ev_signal_init (&childev, childcb, SIGCHLD); 2648 ev_signal_init (&childev, childcb, SIGCHLD);
1782 ev_set_priority (&childev, EV_MAXPRI); 2649 ev_set_priority (&childev, EV_MAXPRI);
1783 ev_signal_start (EV_A_ &childev); 2650 ev_signal_start (EV_A_ &childev);
1784 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2651 ev_unref (EV_A); /* child watcher should not keep loop alive */
1785#endif 2652#endif
… …
1790 2657
1791 return ev_default_loop_ptr; 2658 return ev_default_loop_ptr;
1792} 2659}
1793 2660
1794void 2661void
1795ev_default_destroy (void) 2662ev_loop_fork (EV_P) EV_THROW
1796{ 2663{
1797#if EV_MULTIPLICITY
1798 struct ev_loop *loop = ev_default_loop_ptr;
1799#endif
1800
1801 ev_default_loop_ptr = 0;
1802
1803#ifndef _WIN32
1804 ev_ref (EV_A); /* child watcher */
1805 ev_signal_stop (EV_A_ &childev);
1806#endif
1807
1808 loop_destroy (EV_A);
1809}
1810
1811void
1812ev_default_fork (void)
1813{
1814#if EV_MULTIPLICITY
1815 struct ev_loop *loop = ev_default_loop_ptr;
1816#endif
1817
1818 postfork = 1; /* must be in line with ev_loop_fork */ 2664 postfork = 1; /* must be in line with ev_default_fork */
1819} 2665}
1820 2666
1821/*****************************************************************************/ 2667/*****************************************************************************/
1822 2668
1823void 2669void
1824ev_invoke (EV_P_ void *w, int revents) 2670ev_invoke (EV_P_ void *w, int revents)
1825{ 2671{
1826 EV_CB_INVOKE ((W)w, revents); 2672 EV_CB_INVOKE ((W)w, revents);
2673}
2674
2675unsigned int
2676ev_pending_count (EV_P) EV_THROW
2677{
2678 int pri;
2679 unsigned int count = 0;
2680
2681 for (pri = NUMPRI; pri--; )
2682 count += pendingcnt [pri];
2683
2684 return count;
1827} 2685}
1828 2686
1829void noinline 2687void noinline
1830ev_invoke_pending (EV_P) 2688ev_invoke_pending (EV_P)
1831{ 2689{
… …
1833 2691
1834 for (pri = NUMPRI; pri--; ) 2692 for (pri = NUMPRI; pri--; )
1835 while (pendingcnt [pri]) 2693 while (pendingcnt [pri])
1836 { 2694 {
1837 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2695 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1838
1839 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1840 /* ^ this is no longer true, as pending_w could be here */
1841 2696
1842 p->w->pending = 0; 2697 p->w->pending = 0;
1843 EV_CB_INVOKE (p->w, p->events); 2698 EV_CB_INVOKE (p->w, p->events);
1844 EV_FREQUENT_CHECK; 2699 EV_FREQUENT_CHECK;
1845 } 2700 }
… …
1902 EV_FREQUENT_CHECK; 2757 EV_FREQUENT_CHECK;
1903 feed_reverse (EV_A_ (W)w); 2758 feed_reverse (EV_A_ (W)w);
1904 } 2759 }
1905 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2760 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1906 2761
1907 feed_reverse_done (EV_A_ EV_TIMEOUT); 2762 feed_reverse_done (EV_A_ EV_TIMER);
1908 } 2763 }
1909} 2764}
1910 2765
1911#if EV_PERIODIC_ENABLE 2766#if EV_PERIODIC_ENABLE
2767
2768static void noinline
2769periodic_recalc (EV_P_ ev_periodic *w)
2770{
2771 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2772 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2773
2774 /* the above almost always errs on the low side */
2775 while (at <= ev_rt_now)
2776 {
2777 ev_tstamp nat = at + w->interval;
2778
2779 /* when resolution fails us, we use ev_rt_now */
2780 if (expect_false (nat == at))
2781 {
2782 at = ev_rt_now;
2783 break;
2784 }
2785
2786 at = nat;
2787 }
2788
2789 ev_at (w) = at;
2790}
2791
1912/* make periodics pending */ 2792/* make periodics pending */
1913inline_size void 2793inline_size void
1914periodics_reify (EV_P) 2794periodics_reify (EV_P)
1915{ 2795{
1916 EV_FREQUENT_CHECK; 2796 EV_FREQUENT_CHECK;
… …
1935 ANHE_at_cache (periodics [HEAP0]); 2815 ANHE_at_cache (periodics [HEAP0]);
1936 downheap (periodics, periodiccnt, HEAP0); 2816 downheap (periodics, periodiccnt, HEAP0);
1937 } 2817 }
1938 else if (w->interval) 2818 else if (w->interval)
1939 { 2819 {
1940 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2820 periodic_recalc (EV_A_ w);
1941 /* if next trigger time is not sufficiently in the future, put it there */
1942 /* this might happen because of floating point inexactness */
1943 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1944 {
1945 ev_at (w) += w->interval;
1946
1947 /* if interval is unreasonably low we might still have a time in the past */
1948 /* so correct this. this will make the periodic very inexact, but the user */
1949 /* has effectively asked to get triggered more often than possible */
1950 if (ev_at (w) < ev_rt_now)
1951 ev_at (w) = ev_rt_now;
1952 }
1953
1954 ANHE_at_cache (periodics [HEAP0]); 2821 ANHE_at_cache (periodics [HEAP0]);
1955 downheap (periodics, periodiccnt, HEAP0); 2822 downheap (periodics, periodiccnt, HEAP0);
1956 } 2823 }
1957 else 2824 else
1958 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2825 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1965 feed_reverse_done (EV_A_ EV_PERIODIC); 2832 feed_reverse_done (EV_A_ EV_PERIODIC);
1966 } 2833 }
1967} 2834}
1968 2835
1969/* simply recalculate all periodics */ 2836/* simply recalculate all periodics */
1970/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2837/* TODO: maybe ensure that at least one event happens when jumping forward? */
1971static void noinline 2838static void noinline ecb_cold
1972periodics_reschedule (EV_P) 2839periodics_reschedule (EV_P)
1973{ 2840{
1974 int i; 2841 int i;
1975 2842
1976 /* adjust periodics after time jump */ 2843 /* adjust periodics after time jump */
… …
1979 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2846 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1980 2847
1981 if (w->reschedule_cb) 2848 if (w->reschedule_cb)
1982 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2849 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1983 else if (w->interval) 2850 else if (w->interval)
1984 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2851 periodic_recalc (EV_A_ w);
1985 2852
1986 ANHE_at_cache (periodics [i]); 2853 ANHE_at_cache (periodics [i]);
1987 } 2854 }
1988 2855
1989 reheap (periodics, periodiccnt); 2856 reheap (periodics, periodiccnt);
1990} 2857}
1991#endif 2858#endif
1992 2859
1993/* adjust all timers by a given offset */ 2860/* adjust all timers by a given offset */
1994static void noinline 2861static void noinline ecb_cold
1995timers_reschedule (EV_P_ ev_tstamp adjust) 2862timers_reschedule (EV_P_ ev_tstamp adjust)
1996{ 2863{
1997 int i; 2864 int i;
1998 2865
1999 for (i = 0; i < timercnt; ++i) 2866 for (i = 0; i < timercnt; ++i)
… …
2003 ANHE_at_cache (*he); 2870 ANHE_at_cache (*he);
2004 } 2871 }
2005} 2872}
2006 2873
2007/* fetch new monotonic and realtime times from the kernel */ 2874/* fetch new monotonic and realtime times from the kernel */
2008/* also detetc if there was a timejump, and act accordingly */ 2875/* also detect if there was a timejump, and act accordingly */
2009inline_speed void 2876inline_speed void
2010time_update (EV_P_ ev_tstamp max_block) 2877time_update (EV_P_ ev_tstamp max_block)
2011{ 2878{
2012#if EV_USE_MONOTONIC 2879#if EV_USE_MONOTONIC
2013 if (expect_true (have_monotonic)) 2880 if (expect_true (have_monotonic))
… …
2036 * doesn't hurt either as we only do this on time-jumps or 2903 * doesn't hurt either as we only do this on time-jumps or
2037 * in the unlikely event of having been preempted here. 2904 * in the unlikely event of having been preempted here.
2038 */ 2905 */
2039 for (i = 4; --i; ) 2906 for (i = 4; --i; )
2040 { 2907 {
2908 ev_tstamp diff;
2041 rtmn_diff = ev_rt_now - mn_now; 2909 rtmn_diff = ev_rt_now - mn_now;
2042 2910
2911 diff = odiff - rtmn_diff;
2912
2043 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2913 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2044 return; /* all is well */ 2914 return; /* all is well */
2045 2915
2046 ev_rt_now = ev_time (); 2916 ev_rt_now = ev_time ();
2047 mn_now = get_clock (); 2917 mn_now = get_clock ();
2048 now_floor = mn_now; 2918 now_floor = mn_now;
… …
2070 2940
2071 mn_now = ev_rt_now; 2941 mn_now = ev_rt_now;
2072 } 2942 }
2073} 2943}
2074 2944
2075void 2945int
2076ev_loop (EV_P_ int flags) 2946ev_run (EV_P_ int flags)
2077{ 2947{
2078#if EV_MINIMAL < 2 2948#if EV_FEATURE_API
2079 ++loop_depth; 2949 ++loop_depth;
2080#endif 2950#endif
2081 2951
2952 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2953
2082 loop_done = EVUNLOOP_CANCEL; 2954 loop_done = EVBREAK_CANCEL;
2083 2955
2084 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2956 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2085 2957
2086 do 2958 do
2087 { 2959 {
2088#if EV_VERIFY >= 2 2960#if EV_VERIFY >= 2
2089 ev_loop_verify (EV_A); 2961 ev_verify (EV_A);
2090#endif 2962#endif
2091 2963
2092#ifndef _WIN32 2964#ifndef _WIN32
2093 if (expect_false (curpid)) /* penalise the forking check even more */ 2965 if (expect_false (curpid)) /* penalise the forking check even more */
2094 if (expect_false (getpid () != curpid)) 2966 if (expect_false (getpid () != curpid))
… …
2106 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2978 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2107 EV_INVOKE_PENDING; 2979 EV_INVOKE_PENDING;
2108 } 2980 }
2109#endif 2981#endif
2110 2982
2983#if EV_PREPARE_ENABLE
2111 /* queue prepare watchers (and execute them) */ 2984 /* queue prepare watchers (and execute them) */
2112 if (expect_false (preparecnt)) 2985 if (expect_false (preparecnt))
2113 { 2986 {
2114 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2987 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2115 EV_INVOKE_PENDING; 2988 EV_INVOKE_PENDING;
2116 } 2989 }
2990#endif
2991
2992 if (expect_false (loop_done))
2993 break;
2117 2994
2118 /* we might have forked, so reify kernel state if necessary */ 2995 /* we might have forked, so reify kernel state if necessary */
2119 if (expect_false (postfork)) 2996 if (expect_false (postfork))
2120 loop_fork (EV_A); 2997 loop_fork (EV_A);
2121 2998
… …
2125 /* calculate blocking time */ 3002 /* calculate blocking time */
2126 { 3003 {
2127 ev_tstamp waittime = 0.; 3004 ev_tstamp waittime = 0.;
2128 ev_tstamp sleeptime = 0.; 3005 ev_tstamp sleeptime = 0.;
2129 3006
3007 /* remember old timestamp for io_blocktime calculation */
3008 ev_tstamp prev_mn_now = mn_now;
3009
3010 /* update time to cancel out callback processing overhead */
3011 time_update (EV_A_ 1e100);
3012
3013 /* from now on, we want a pipe-wake-up */
3014 pipe_write_wanted = 1;
3015
3016 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3017
2130 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3018 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2131 { 3019 {
2132 /* remember old timestamp for io_blocktime calculation */
2133 ev_tstamp prev_mn_now = mn_now;
2134
2135 /* update time to cancel out callback processing overhead */
2136 time_update (EV_A_ 1e100);
2137
2138 waittime = MAX_BLOCKTIME; 3020 waittime = MAX_BLOCKTIME;
2139 3021
2140 if (timercnt) 3022 if (timercnt)
2141 { 3023 {
2142 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3024 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2143 if (waittime > to) waittime = to; 3025 if (waittime > to) waittime = to;
2144 } 3026 }
2145 3027
2146#if EV_PERIODIC_ENABLE 3028#if EV_PERIODIC_ENABLE
2147 if (periodiccnt) 3029 if (periodiccnt)
2148 { 3030 {
2149 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3031 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2150 if (waittime > to) waittime = to; 3032 if (waittime > to) waittime = to;
2151 } 3033 }
2152#endif 3034#endif
2153 3035
2154 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3036 /* don't let timeouts decrease the waittime below timeout_blocktime */
2155 if (expect_false (waittime < timeout_blocktime)) 3037 if (expect_false (waittime < timeout_blocktime))
2156 waittime = timeout_blocktime; 3038 waittime = timeout_blocktime;
3039
3040 /* at this point, we NEED to wait, so we have to ensure */
3041 /* to pass a minimum nonzero value to the backend */
3042 if (expect_false (waittime < backend_mintime))
3043 waittime = backend_mintime;
2157 3044
2158 /* extra check because io_blocktime is commonly 0 */ 3045 /* extra check because io_blocktime is commonly 0 */
2159 if (expect_false (io_blocktime)) 3046 if (expect_false (io_blocktime))
2160 { 3047 {
2161 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3048 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2162 3049
2163 if (sleeptime > waittime - backend_fudge) 3050 if (sleeptime > waittime - backend_mintime)
2164 sleeptime = waittime - backend_fudge; 3051 sleeptime = waittime - backend_mintime;
2165 3052
2166 if (expect_true (sleeptime > 0.)) 3053 if (expect_true (sleeptime > 0.))
2167 { 3054 {
2168 ev_sleep (sleeptime); 3055 ev_sleep (sleeptime);
2169 waittime -= sleeptime; 3056 waittime -= sleeptime;
2170 } 3057 }
2171 } 3058 }
2172 } 3059 }
2173 3060
2174#if EV_MINIMAL < 2 3061#if EV_FEATURE_API
2175 ++loop_count; 3062 ++loop_count;
2176#endif 3063#endif
3064 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2177 backend_poll (EV_A_ waittime); 3065 backend_poll (EV_A_ waittime);
3066 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3067
3068 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3069
3070 if (pipe_write_skipped)
3071 {
3072 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3073 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3074 }
3075
2178 3076
2179 /* update ev_rt_now, do magic */ 3077 /* update ev_rt_now, do magic */
2180 time_update (EV_A_ waittime + sleeptime); 3078 time_update (EV_A_ waittime + sleeptime);
2181 } 3079 }
2182 3080
… …
2189#if EV_IDLE_ENABLE 3087#if EV_IDLE_ENABLE
2190 /* queue idle watchers unless other events are pending */ 3088 /* queue idle watchers unless other events are pending */
2191 idle_reify (EV_A); 3089 idle_reify (EV_A);
2192#endif 3090#endif
2193 3091
3092#if EV_CHECK_ENABLE
2194 /* queue check watchers, to be executed first */ 3093 /* queue check watchers, to be executed first */
2195 if (expect_false (checkcnt)) 3094 if (expect_false (checkcnt))
2196 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3095 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3096#endif
2197 3097
2198 EV_INVOKE_PENDING; 3098 EV_INVOKE_PENDING;
2199 } 3099 }
2200 while (expect_true ( 3100 while (expect_true (
2201 activecnt 3101 activecnt
2202 && !loop_done 3102 && !loop_done
2203 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3103 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2204 )); 3104 ));
2205 3105
2206 if (loop_done == EVUNLOOP_ONE) 3106 if (loop_done == EVBREAK_ONE)
2207 loop_done = EVUNLOOP_CANCEL; 3107 loop_done = EVBREAK_CANCEL;
2208 3108
2209#if EV_MINIMAL < 2 3109#if EV_FEATURE_API
2210 --loop_depth; 3110 --loop_depth;
2211#endif 3111#endif
3112
3113 return activecnt;
2212} 3114}
2213 3115
2214void 3116void
2215ev_unloop (EV_P_ int how) 3117ev_break (EV_P_ int how) EV_THROW
2216{ 3118{
2217 loop_done = how; 3119 loop_done = how;
2218} 3120}
2219 3121
2220void 3122void
2221ev_ref (EV_P) 3123ev_ref (EV_P) EV_THROW
2222{ 3124{
2223 ++activecnt; 3125 ++activecnt;
2224} 3126}
2225 3127
2226void 3128void
2227ev_unref (EV_P) 3129ev_unref (EV_P) EV_THROW
2228{ 3130{
2229 --activecnt; 3131 --activecnt;
2230} 3132}
2231 3133
2232void 3134void
2233ev_now_update (EV_P) 3135ev_now_update (EV_P) EV_THROW
2234{ 3136{
2235 time_update (EV_A_ 1e100); 3137 time_update (EV_A_ 1e100);
2236} 3138}
2237 3139
2238void 3140void
2239ev_suspend (EV_P) 3141ev_suspend (EV_P) EV_THROW
2240{ 3142{
2241 ev_now_update (EV_A); 3143 ev_now_update (EV_A);
2242} 3144}
2243 3145
2244void 3146void
2245ev_resume (EV_P) 3147ev_resume (EV_P) EV_THROW
2246{ 3148{
2247 ev_tstamp mn_prev = mn_now; 3149 ev_tstamp mn_prev = mn_now;
2248 3150
2249 ev_now_update (EV_A); 3151 ev_now_update (EV_A);
2250 timers_reschedule (EV_A_ mn_now - mn_prev); 3152 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2267inline_size void 3169inline_size void
2268wlist_del (WL *head, WL elem) 3170wlist_del (WL *head, WL elem)
2269{ 3171{
2270 while (*head) 3172 while (*head)
2271 { 3173 {
2272 if (*head == elem) 3174 if (expect_true (*head == elem))
2273 { 3175 {
2274 *head = elem->next; 3176 *head = elem->next;
2275 return; 3177 break;
2276 } 3178 }
2277 3179
2278 head = &(*head)->next; 3180 head = &(*head)->next;
2279 } 3181 }
2280} 3182}
… …
2289 w->pending = 0; 3191 w->pending = 0;
2290 } 3192 }
2291} 3193}
2292 3194
2293int 3195int
2294ev_clear_pending (EV_P_ void *w) 3196ev_clear_pending (EV_P_ void *w) EV_THROW
2295{ 3197{
2296 W w_ = (W)w; 3198 W w_ = (W)w;
2297 int pending = w_->pending; 3199 int pending = w_->pending;
2298 3200
2299 if (expect_true (pending)) 3201 if (expect_true (pending))
… …
2332} 3234}
2333 3235
2334/*****************************************************************************/ 3236/*****************************************************************************/
2335 3237
2336void noinline 3238void noinline
2337ev_io_start (EV_P_ ev_io *w) 3239ev_io_start (EV_P_ ev_io *w) EV_THROW
2338{ 3240{
2339 int fd = w->fd; 3241 int fd = w->fd;
2340 3242
2341 if (expect_false (ev_is_active (w))) 3243 if (expect_false (ev_is_active (w)))
2342 return; 3244 return;
2343 3245
2344 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3246 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2345 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3247 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2346 3248
2347 EV_FREQUENT_CHECK; 3249 EV_FREQUENT_CHECK;
2348 3250
2349 ev_start (EV_A_ (W)w, 1); 3251 ev_start (EV_A_ (W)w, 1);
2350 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3252 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2351 wlist_add (&anfds[fd].head, (WL)w); 3253 wlist_add (&anfds[fd].head, (WL)w);
2352 3254
2353 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 3255 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2354 w->events &= ~EV__IOFDSET; 3256 w->events &= ~EV__IOFDSET;
2355 3257
2356 EV_FREQUENT_CHECK; 3258 EV_FREQUENT_CHECK;
2357} 3259}
2358 3260
2359void noinline 3261void noinline
2360ev_io_stop (EV_P_ ev_io *w) 3262ev_io_stop (EV_P_ ev_io *w) EV_THROW
2361{ 3263{
2362 clear_pending (EV_A_ (W)w); 3264 clear_pending (EV_A_ (W)w);
2363 if (expect_false (!ev_is_active (w))) 3265 if (expect_false (!ev_is_active (w)))
2364 return; 3266 return;
2365 3267
… …
2368 EV_FREQUENT_CHECK; 3270 EV_FREQUENT_CHECK;
2369 3271
2370 wlist_del (&anfds[w->fd].head, (WL)w); 3272 wlist_del (&anfds[w->fd].head, (WL)w);
2371 ev_stop (EV_A_ (W)w); 3273 ev_stop (EV_A_ (W)w);
2372 3274
2373 fd_change (EV_A_ w->fd, 1); 3275 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2374 3276
2375 EV_FREQUENT_CHECK; 3277 EV_FREQUENT_CHECK;
2376} 3278}
2377 3279
2378void noinline 3280void noinline
2379ev_timer_start (EV_P_ ev_timer *w) 3281ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2380{ 3282{
2381 if (expect_false (ev_is_active (w))) 3283 if (expect_false (ev_is_active (w)))
2382 return; 3284 return;
2383 3285
2384 ev_at (w) += mn_now; 3286 ev_at (w) += mn_now;
… …
2398 3300
2399 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3301 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2400} 3302}
2401 3303
2402void noinline 3304void noinline
2403ev_timer_stop (EV_P_ ev_timer *w) 3305ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2404{ 3306{
2405 clear_pending (EV_A_ (W)w); 3307 clear_pending (EV_A_ (W)w);
2406 if (expect_false (!ev_is_active (w))) 3308 if (expect_false (!ev_is_active (w)))
2407 return; 3309 return;
2408 3310
… …
2420 timers [active] = timers [timercnt + HEAP0]; 3322 timers [active] = timers [timercnt + HEAP0];
2421 adjustheap (timers, timercnt, active); 3323 adjustheap (timers, timercnt, active);
2422 } 3324 }
2423 } 3325 }
2424 3326
2425 EV_FREQUENT_CHECK;
2426
2427 ev_at (w) -= mn_now; 3327 ev_at (w) -= mn_now;
2428 3328
2429 ev_stop (EV_A_ (W)w); 3329 ev_stop (EV_A_ (W)w);
3330
3331 EV_FREQUENT_CHECK;
2430} 3332}
2431 3333
2432void noinline 3334void noinline
2433ev_timer_again (EV_P_ ev_timer *w) 3335ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2434{ 3336{
2435 EV_FREQUENT_CHECK; 3337 EV_FREQUENT_CHECK;
3338
3339 clear_pending (EV_A_ (W)w);
2436 3340
2437 if (ev_is_active (w)) 3341 if (ev_is_active (w))
2438 { 3342 {
2439 if (w->repeat) 3343 if (w->repeat)
2440 { 3344 {
… …
2452 } 3356 }
2453 3357
2454 EV_FREQUENT_CHECK; 3358 EV_FREQUENT_CHECK;
2455} 3359}
2456 3360
3361ev_tstamp
3362ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3363{
3364 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3365}
3366
2457#if EV_PERIODIC_ENABLE 3367#if EV_PERIODIC_ENABLE
2458void noinline 3368void noinline
2459ev_periodic_start (EV_P_ ev_periodic *w) 3369ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2460{ 3370{
2461 if (expect_false (ev_is_active (w))) 3371 if (expect_false (ev_is_active (w)))
2462 return; 3372 return;
2463 3373
2464 if (w->reschedule_cb) 3374 if (w->reschedule_cb)
2465 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3375 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2466 else if (w->interval) 3376 else if (w->interval)
2467 { 3377 {
2468 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3378 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2469 /* this formula differs from the one in periodic_reify because we do not always round up */ 3379 periodic_recalc (EV_A_ w);
2470 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2471 } 3380 }
2472 else 3381 else
2473 ev_at (w) = w->offset; 3382 ev_at (w) = w->offset;
2474 3383
2475 EV_FREQUENT_CHECK; 3384 EV_FREQUENT_CHECK;
… …
2485 3394
2486 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3395 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2487} 3396}
2488 3397
2489void noinline 3398void noinline
2490ev_periodic_stop (EV_P_ ev_periodic *w) 3399ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2491{ 3400{
2492 clear_pending (EV_A_ (W)w); 3401 clear_pending (EV_A_ (W)w);
2493 if (expect_false (!ev_is_active (w))) 3402 if (expect_false (!ev_is_active (w)))
2494 return; 3403 return;
2495 3404
… …
2507 periodics [active] = periodics [periodiccnt + HEAP0]; 3416 periodics [active] = periodics [periodiccnt + HEAP0];
2508 adjustheap (periodics, periodiccnt, active); 3417 adjustheap (periodics, periodiccnt, active);
2509 } 3418 }
2510 } 3419 }
2511 3420
2512 EV_FREQUENT_CHECK;
2513
2514 ev_stop (EV_A_ (W)w); 3421 ev_stop (EV_A_ (W)w);
3422
3423 EV_FREQUENT_CHECK;
2515} 3424}
2516 3425
2517void noinline 3426void noinline
2518ev_periodic_again (EV_P_ ev_periodic *w) 3427ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2519{ 3428{
2520 /* TODO: use adjustheap and recalculation */ 3429 /* TODO: use adjustheap and recalculation */
2521 ev_periodic_stop (EV_A_ w); 3430 ev_periodic_stop (EV_A_ w);
2522 ev_periodic_start (EV_A_ w); 3431 ev_periodic_start (EV_A_ w);
2523} 3432}
… …
2525 3434
2526#ifndef SA_RESTART 3435#ifndef SA_RESTART
2527# define SA_RESTART 0 3436# define SA_RESTART 0
2528#endif 3437#endif
2529 3438
3439#if EV_SIGNAL_ENABLE
3440
2530void noinline 3441void noinline
2531ev_signal_start (EV_P_ ev_signal *w) 3442ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2532{ 3443{
2533#if EV_MULTIPLICITY
2534 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2535#endif
2536 if (expect_false (ev_is_active (w))) 3444 if (expect_false (ev_is_active (w)))
2537 return; 3445 return;
2538 3446
2539 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3447 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2540 3448
2541 evpipe_init (EV_A); 3449#if EV_MULTIPLICITY
3450 assert (("libev: a signal must not be attached to two different loops",
3451 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2542 3452
2543 EV_FREQUENT_CHECK; 3453 signals [w->signum - 1].loop = EV_A;
3454#endif
2544 3455
3456 EV_FREQUENT_CHECK;
3457
3458#if EV_USE_SIGNALFD
3459 if (sigfd == -2)
2545 { 3460 {
2546#ifndef _WIN32 3461 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2547 sigset_t full, prev; 3462 if (sigfd < 0 && errno == EINVAL)
2548 sigfillset (&full); 3463 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2549 sigprocmask (SIG_SETMASK, &full, &prev);
2550#endif
2551 3464
2552 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3465 if (sigfd >= 0)
3466 {
3467 fd_intern (sigfd); /* doing it twice will not hurt */
2553 3468
2554#ifndef _WIN32 3469 sigemptyset (&sigfd_set);
2555 sigprocmask (SIG_SETMASK, &prev, 0); 3470
2556#endif 3471 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3472 ev_set_priority (&sigfd_w, EV_MAXPRI);
3473 ev_io_start (EV_A_ &sigfd_w);
3474 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3475 }
2557 } 3476 }
3477
3478 if (sigfd >= 0)
3479 {
3480 /* TODO: check .head */
3481 sigaddset (&sigfd_set, w->signum);
3482 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3483
3484 signalfd (sigfd, &sigfd_set, 0);
3485 }
3486#endif
2558 3487
2559 ev_start (EV_A_ (W)w, 1); 3488 ev_start (EV_A_ (W)w, 1);
2560 wlist_add (&signals [w->signum - 1].head, (WL)w); 3489 wlist_add (&signals [w->signum - 1].head, (WL)w);
2561 3490
2562 if (!((WL)w)->next) 3491 if (!((WL)w)->next)
3492# if EV_USE_SIGNALFD
3493 if (sigfd < 0) /*TODO*/
3494# endif
2563 { 3495 {
2564#if _WIN32 3496# ifdef _WIN32
3497 evpipe_init (EV_A);
3498
2565 signal (w->signum, ev_sighandler); 3499 signal (w->signum, ev_sighandler);
2566#else 3500# else
2567 struct sigaction sa; 3501 struct sigaction sa;
3502
3503 evpipe_init (EV_A);
3504
2568 sa.sa_handler = ev_sighandler; 3505 sa.sa_handler = ev_sighandler;
2569 sigfillset (&sa.sa_mask); 3506 sigfillset (&sa.sa_mask);
2570 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3507 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2571 sigaction (w->signum, &sa, 0); 3508 sigaction (w->signum, &sa, 0);
3509
3510 if (origflags & EVFLAG_NOSIGMASK)
3511 {
3512 sigemptyset (&sa.sa_mask);
3513 sigaddset (&sa.sa_mask, w->signum);
3514 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3515 }
2572#endif 3516#endif
2573 } 3517 }
2574 3518
2575 EV_FREQUENT_CHECK; 3519 EV_FREQUENT_CHECK;
2576} 3520}
2577 3521
2578void noinline 3522void noinline
2579ev_signal_stop (EV_P_ ev_signal *w) 3523ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2580{ 3524{
2581 clear_pending (EV_A_ (W)w); 3525 clear_pending (EV_A_ (W)w);
2582 if (expect_false (!ev_is_active (w))) 3526 if (expect_false (!ev_is_active (w)))
2583 return; 3527 return;
2584 3528
… …
2586 3530
2587 wlist_del (&signals [w->signum - 1].head, (WL)w); 3531 wlist_del (&signals [w->signum - 1].head, (WL)w);
2588 ev_stop (EV_A_ (W)w); 3532 ev_stop (EV_A_ (W)w);
2589 3533
2590 if (!signals [w->signum - 1].head) 3534 if (!signals [w->signum - 1].head)
3535 {
3536#if EV_MULTIPLICITY
3537 signals [w->signum - 1].loop = 0; /* unattach from signal */
3538#endif
3539#if EV_USE_SIGNALFD
3540 if (sigfd >= 0)
3541 {
3542 sigset_t ss;
3543
3544 sigemptyset (&ss);
3545 sigaddset (&ss, w->signum);
3546 sigdelset (&sigfd_set, w->signum);
3547
3548 signalfd (sigfd, &sigfd_set, 0);
3549 sigprocmask (SIG_UNBLOCK, &ss, 0);
3550 }
3551 else
3552#endif
2591 signal (w->signum, SIG_DFL); 3553 signal (w->signum, SIG_DFL);
3554 }
2592 3555
2593 EV_FREQUENT_CHECK; 3556 EV_FREQUENT_CHECK;
2594} 3557}
3558
3559#endif
3560
3561#if EV_CHILD_ENABLE
2595 3562
2596void 3563void
2597ev_child_start (EV_P_ ev_child *w) 3564ev_child_start (EV_P_ ev_child *w) EV_THROW
2598{ 3565{
2599#if EV_MULTIPLICITY 3566#if EV_MULTIPLICITY
2600 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3567 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2601#endif 3568#endif
2602 if (expect_false (ev_is_active (w))) 3569 if (expect_false (ev_is_active (w)))
2603 return; 3570 return;
2604 3571
2605 EV_FREQUENT_CHECK; 3572 EV_FREQUENT_CHECK;
2606 3573
2607 ev_start (EV_A_ (W)w, 1); 3574 ev_start (EV_A_ (W)w, 1);
2608 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3575 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2609 3576
2610 EV_FREQUENT_CHECK; 3577 EV_FREQUENT_CHECK;
2611} 3578}
2612 3579
2613void 3580void
2614ev_child_stop (EV_P_ ev_child *w) 3581ev_child_stop (EV_P_ ev_child *w) EV_THROW
2615{ 3582{
2616 clear_pending (EV_A_ (W)w); 3583 clear_pending (EV_A_ (W)w);
2617 if (expect_false (!ev_is_active (w))) 3584 if (expect_false (!ev_is_active (w)))
2618 return; 3585 return;
2619 3586
2620 EV_FREQUENT_CHECK; 3587 EV_FREQUENT_CHECK;
2621 3588
2622 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3589 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2623 ev_stop (EV_A_ (W)w); 3590 ev_stop (EV_A_ (W)w);
2624 3591
2625 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
2626} 3593}
3594
3595#endif
2627 3596
2628#if EV_STAT_ENABLE 3597#if EV_STAT_ENABLE
2629 3598
2630# ifdef _WIN32 3599# ifdef _WIN32
2631# undef lstat 3600# undef lstat
… …
2637#define MIN_STAT_INTERVAL 0.1074891 3606#define MIN_STAT_INTERVAL 0.1074891
2638 3607
2639static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3608static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2640 3609
2641#if EV_USE_INOTIFY 3610#if EV_USE_INOTIFY
2642# define EV_INOTIFY_BUFSIZE 8192 3611
3612/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3613# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2643 3614
2644static void noinline 3615static void noinline
2645infy_add (EV_P_ ev_stat *w) 3616infy_add (EV_P_ ev_stat *w)
2646{ 3617{
2647 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); 3618 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);
2648 3619
2649 if (w->wd < 0) 3620 if (w->wd >= 0)
3621 {
3622 struct statfs sfs;
3623
3624 /* now local changes will be tracked by inotify, but remote changes won't */
3625 /* unless the filesystem is known to be local, we therefore still poll */
3626 /* also do poll on <2.6.25, but with normal frequency */
3627
3628 if (!fs_2625)
3629 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3630 else if (!statfs (w->path, &sfs)
3631 && (sfs.f_type == 0x1373 /* devfs */
3632 || sfs.f_type == 0xEF53 /* ext2/3 */
3633 || sfs.f_type == 0x3153464a /* jfs */
3634 || sfs.f_type == 0x52654973 /* reiser3 */
3635 || sfs.f_type == 0x01021994 /* tempfs */
3636 || sfs.f_type == 0x58465342 /* xfs */))
3637 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3638 else
3639 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2650 { 3640 }
3641 else
3642 {
3643 /* can't use inotify, continue to stat */
2651 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3644 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2652 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2653 3645
2654 /* monitor some parent directory for speedup hints */ 3646 /* if path is not there, monitor some parent directory for speedup hints */
2655 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3647 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2656 /* but an efficiency issue only */ 3648 /* but an efficiency issue only */
2657 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3649 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2658 { 3650 {
2659 char path [4096]; 3651 char path [4096];
… …
2669 if (!pend || pend == path) 3661 if (!pend || pend == path)
2670 break; 3662 break;
2671 3663
2672 *pend = 0; 3664 *pend = 0;
2673 w->wd = inotify_add_watch (fs_fd, path, mask); 3665 w->wd = inotify_add_watch (fs_fd, path, mask);
2674 } 3666 }
2675 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3667 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2676 } 3668 }
2677 } 3669 }
2678 3670
2679 if (w->wd >= 0) 3671 if (w->wd >= 0)
2680 {
2681 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3672 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2682 3673
2683 /* now local changes will be tracked by inotify, but remote changes won't */ 3674 /* now re-arm timer, if required */
2684 /* unless the filesystem it known to be local, we therefore still poll */ 3675 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2685 /* also do poll on <2.6.25, but with normal frequency */
2686 struct statfs sfs;
2687
2688 if (fs_2625 && !statfs (w->path, &sfs))
2689 if (sfs.f_type == 0x1373 /* devfs */
2690 || sfs.f_type == 0xEF53 /* ext2/3 */
2691 || sfs.f_type == 0x3153464a /* jfs */
2692 || sfs.f_type == 0x52654973 /* reiser3 */
2693 || sfs.f_type == 0x01021994 /* tempfs */
2694 || sfs.f_type == 0x58465342 /* xfs */)
2695 return;
2696
2697 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2698 ev_timer_again (EV_A_ &w->timer); 3676 ev_timer_again (EV_A_ &w->timer);
2699 } 3677 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2700} 3678}
2701 3679
2702static void noinline 3680static void noinline
2703infy_del (EV_P_ ev_stat *w) 3681infy_del (EV_P_ ev_stat *w)
2704{ 3682{
… …
2707 3685
2708 if (wd < 0) 3686 if (wd < 0)
2709 return; 3687 return;
2710 3688
2711 w->wd = -2; 3689 w->wd = -2;
2712 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3690 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2713 wlist_del (&fs_hash [slot].head, (WL)w); 3691 wlist_del (&fs_hash [slot].head, (WL)w);
2714 3692
2715 /* remove this watcher, if others are watching it, they will rearm */ 3693 /* remove this watcher, if others are watching it, they will rearm */
2716 inotify_rm_watch (fs_fd, wd); 3694 inotify_rm_watch (fs_fd, wd);
2717} 3695}
… …
2719static void noinline 3697static void noinline
2720infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3698infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2721{ 3699{
2722 if (slot < 0) 3700 if (slot < 0)
2723 /* overflow, need to check for all hash slots */ 3701 /* overflow, need to check for all hash slots */
2724 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3702 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2725 infy_wd (EV_A_ slot, wd, ev); 3703 infy_wd (EV_A_ slot, wd, ev);
2726 else 3704 else
2727 { 3705 {
2728 WL w_; 3706 WL w_;
2729 3707
2730 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3708 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2731 { 3709 {
2732 ev_stat *w = (ev_stat *)w_; 3710 ev_stat *w = (ev_stat *)w_;
2733 w_ = w_->next; /* lets us remove this watcher and all before it */ 3711 w_ = w_->next; /* lets us remove this watcher and all before it */
2734 3712
2735 if (w->wd == wd || wd == -1) 3713 if (w->wd == wd || wd == -1)
2736 { 3714 {
2737 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3715 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2738 { 3716 {
2739 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3717 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2740 w->wd = -1; 3718 w->wd = -1;
2741 infy_add (EV_A_ w); /* re-add, no matter what */ 3719 infy_add (EV_A_ w); /* re-add, no matter what */
2742 } 3720 }
2743 3721
2744 stat_timer_cb (EV_A_ &w->timer, 0); 3722 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2749 3727
2750static void 3728static void
2751infy_cb (EV_P_ ev_io *w, int revents) 3729infy_cb (EV_P_ ev_io *w, int revents)
2752{ 3730{
2753 char buf [EV_INOTIFY_BUFSIZE]; 3731 char buf [EV_INOTIFY_BUFSIZE];
2754 struct inotify_event *ev = (struct inotify_event *)buf;
2755 int ofs; 3732 int ofs;
2756 int len = read (fs_fd, buf, sizeof (buf)); 3733 int len = read (fs_fd, buf, sizeof (buf));
2757 3734
2758 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3735 for (ofs = 0; ofs < len; )
3736 {
3737 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2759 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3738 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3739 ofs += sizeof (struct inotify_event) + ev->len;
3740 }
2760} 3741}
2761 3742
2762inline_size void 3743inline_size void ecb_cold
2763check_2625 (EV_P) 3744ev_check_2625 (EV_P)
2764{ 3745{
2765 /* kernels < 2.6.25 are borked 3746 /* kernels < 2.6.25 are borked
2766 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3747 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2767 */ 3748 */
2768 struct utsname buf; 3749 if (ev_linux_version () < 0x020619)
2769 int major, minor, micro;
2770
2771 if (uname (&buf))
2772 return; 3750 return;
2773 3751
2774 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2775 return;
2776
2777 if (major < 2
2778 || (major == 2 && minor < 6)
2779 || (major == 2 && minor == 6 && micro < 25))
2780 return;
2781
2782 fs_2625 = 1; 3752 fs_2625 = 1;
3753}
3754
3755inline_size int
3756infy_newfd (void)
3757{
3758#if defined IN_CLOEXEC && defined IN_NONBLOCK
3759 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3760 if (fd >= 0)
3761 return fd;
3762#endif
3763 return inotify_init ();
2783} 3764}
2784 3765
2785inline_size void 3766inline_size void
2786infy_init (EV_P) 3767infy_init (EV_P)
2787{ 3768{
2788 if (fs_fd != -2) 3769 if (fs_fd != -2)
2789 return; 3770 return;
2790 3771
2791 fs_fd = -1; 3772 fs_fd = -1;
2792 3773
2793 check_2625 (EV_A); 3774 ev_check_2625 (EV_A);
2794 3775
2795 fs_fd = inotify_init (); 3776 fs_fd = infy_newfd ();
2796 3777
2797 if (fs_fd >= 0) 3778 if (fs_fd >= 0)
2798 { 3779 {
3780 fd_intern (fs_fd);
2799 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3781 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2800 ev_set_priority (&fs_w, EV_MAXPRI); 3782 ev_set_priority (&fs_w, EV_MAXPRI);
2801 ev_io_start (EV_A_ &fs_w); 3783 ev_io_start (EV_A_ &fs_w);
3784 ev_unref (EV_A);
2802 } 3785 }
2803} 3786}
2804 3787
2805inline_size void 3788inline_size void
2806infy_fork (EV_P) 3789infy_fork (EV_P)
… …
2808 int slot; 3791 int slot;
2809 3792
2810 if (fs_fd < 0) 3793 if (fs_fd < 0)
2811 return; 3794 return;
2812 3795
3796 ev_ref (EV_A);
3797 ev_io_stop (EV_A_ &fs_w);
2813 close (fs_fd); 3798 close (fs_fd);
2814 fs_fd = inotify_init (); 3799 fs_fd = infy_newfd ();
2815 3800
3801 if (fs_fd >= 0)
3802 {
3803 fd_intern (fs_fd);
3804 ev_io_set (&fs_w, fs_fd, EV_READ);
3805 ev_io_start (EV_A_ &fs_w);
3806 ev_unref (EV_A);
3807 }
3808
2816 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3809 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2817 { 3810 {
2818 WL w_ = fs_hash [slot].head; 3811 WL w_ = fs_hash [slot].head;
2819 fs_hash [slot].head = 0; 3812 fs_hash [slot].head = 0;
2820 3813
2821 while (w_) 3814 while (w_)
… …
2826 w->wd = -1; 3819 w->wd = -1;
2827 3820
2828 if (fs_fd >= 0) 3821 if (fs_fd >= 0)
2829 infy_add (EV_A_ w); /* re-add, no matter what */ 3822 infy_add (EV_A_ w); /* re-add, no matter what */
2830 else 3823 else
3824 {
3825 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3826 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2831 ev_timer_again (EV_A_ &w->timer); 3827 ev_timer_again (EV_A_ &w->timer);
3828 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3829 }
2832 } 3830 }
2833 } 3831 }
2834} 3832}
2835 3833
2836#endif 3834#endif
… …
2840#else 3838#else
2841# define EV_LSTAT(p,b) lstat (p, b) 3839# define EV_LSTAT(p,b) lstat (p, b)
2842#endif 3840#endif
2843 3841
2844void 3842void
2845ev_stat_stat (EV_P_ ev_stat *w) 3843ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2846{ 3844{
2847 if (lstat (w->path, &w->attr) < 0) 3845 if (lstat (w->path, &w->attr) < 0)
2848 w->attr.st_nlink = 0; 3846 w->attr.st_nlink = 0;
2849 else if (!w->attr.st_nlink) 3847 else if (!w->attr.st_nlink)
2850 w->attr.st_nlink = 1; 3848 w->attr.st_nlink = 1;
… …
2853static void noinline 3851static void noinline
2854stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3852stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2855{ 3853{
2856 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3854 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2857 3855
2858 /* we copy this here each the time so that */ 3856 ev_statdata prev = w->attr;
2859 /* prev has the old value when the callback gets invoked */
2860 w->prev = w->attr;
2861 ev_stat_stat (EV_A_ w); 3857 ev_stat_stat (EV_A_ w);
2862 3858
2863 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3859 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2864 if ( 3860 if (
2865 w->prev.st_dev != w->attr.st_dev 3861 prev.st_dev != w->attr.st_dev
2866 || w->prev.st_ino != w->attr.st_ino 3862 || prev.st_ino != w->attr.st_ino
2867 || w->prev.st_mode != w->attr.st_mode 3863 || prev.st_mode != w->attr.st_mode
2868 || w->prev.st_nlink != w->attr.st_nlink 3864 || prev.st_nlink != w->attr.st_nlink
2869 || w->prev.st_uid != w->attr.st_uid 3865 || prev.st_uid != w->attr.st_uid
2870 || w->prev.st_gid != w->attr.st_gid 3866 || prev.st_gid != w->attr.st_gid
2871 || w->prev.st_rdev != w->attr.st_rdev 3867 || prev.st_rdev != w->attr.st_rdev
2872 || w->prev.st_size != w->attr.st_size 3868 || prev.st_size != w->attr.st_size
2873 || w->prev.st_atime != w->attr.st_atime 3869 || prev.st_atime != w->attr.st_atime
2874 || w->prev.st_mtime != w->attr.st_mtime 3870 || prev.st_mtime != w->attr.st_mtime
2875 || w->prev.st_ctime != w->attr.st_ctime 3871 || prev.st_ctime != w->attr.st_ctime
2876 ) { 3872 ) {
3873 /* we only update w->prev on actual differences */
3874 /* in case we test more often than invoke the callback, */
3875 /* to ensure that prev is always different to attr */
3876 w->prev = prev;
3877
2877 #if EV_USE_INOTIFY 3878 #if EV_USE_INOTIFY
2878 if (fs_fd >= 0) 3879 if (fs_fd >= 0)
2879 { 3880 {
2880 infy_del (EV_A_ w); 3881 infy_del (EV_A_ w);
2881 infy_add (EV_A_ w); 3882 infy_add (EV_A_ w);
… …
2886 ev_feed_event (EV_A_ w, EV_STAT); 3887 ev_feed_event (EV_A_ w, EV_STAT);
2887 } 3888 }
2888} 3889}
2889 3890
2890void 3891void
2891ev_stat_start (EV_P_ ev_stat *w) 3892ev_stat_start (EV_P_ ev_stat *w) EV_THROW
2892{ 3893{
2893 if (expect_false (ev_is_active (w))) 3894 if (expect_false (ev_is_active (w)))
2894 return; 3895 return;
2895 3896
2896 ev_stat_stat (EV_A_ w); 3897 ev_stat_stat (EV_A_ w);
… …
2906 3907
2907 if (fs_fd >= 0) 3908 if (fs_fd >= 0)
2908 infy_add (EV_A_ w); 3909 infy_add (EV_A_ w);
2909 else 3910 else
2910#endif 3911#endif
3912 {
2911 ev_timer_again (EV_A_ &w->timer); 3913 ev_timer_again (EV_A_ &w->timer);
3914 ev_unref (EV_A);
3915 }
2912 3916
2913 ev_start (EV_A_ (W)w, 1); 3917 ev_start (EV_A_ (W)w, 1);
2914 3918
2915 EV_FREQUENT_CHECK; 3919 EV_FREQUENT_CHECK;
2916} 3920}
2917 3921
2918void 3922void
2919ev_stat_stop (EV_P_ ev_stat *w) 3923ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
2920{ 3924{
2921 clear_pending (EV_A_ (W)w); 3925 clear_pending (EV_A_ (W)w);
2922 if (expect_false (!ev_is_active (w))) 3926 if (expect_false (!ev_is_active (w)))
2923 return; 3927 return;
2924 3928
2925 EV_FREQUENT_CHECK; 3929 EV_FREQUENT_CHECK;
2926 3930
2927#if EV_USE_INOTIFY 3931#if EV_USE_INOTIFY
2928 infy_del (EV_A_ w); 3932 infy_del (EV_A_ w);
2929#endif 3933#endif
3934
3935 if (ev_is_active (&w->timer))
3936 {
3937 ev_ref (EV_A);
2930 ev_timer_stop (EV_A_ &w->timer); 3938 ev_timer_stop (EV_A_ &w->timer);
3939 }
2931 3940
2932 ev_stop (EV_A_ (W)w); 3941 ev_stop (EV_A_ (W)w);
2933 3942
2934 EV_FREQUENT_CHECK; 3943 EV_FREQUENT_CHECK;
2935} 3944}
2936#endif 3945#endif
2937 3946
2938#if EV_IDLE_ENABLE 3947#if EV_IDLE_ENABLE
2939void 3948void
2940ev_idle_start (EV_P_ ev_idle *w) 3949ev_idle_start (EV_P_ ev_idle *w) EV_THROW
2941{ 3950{
2942 if (expect_false (ev_is_active (w))) 3951 if (expect_false (ev_is_active (w)))
2943 return; 3952 return;
2944 3953
2945 pri_adjust (EV_A_ (W)w); 3954 pri_adjust (EV_A_ (W)w);
… …
2958 3967
2959 EV_FREQUENT_CHECK; 3968 EV_FREQUENT_CHECK;
2960} 3969}
2961 3970
2962void 3971void
2963ev_idle_stop (EV_P_ ev_idle *w) 3972ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
2964{ 3973{
2965 clear_pending (EV_A_ (W)w); 3974 clear_pending (EV_A_ (W)w);
2966 if (expect_false (!ev_is_active (w))) 3975 if (expect_false (!ev_is_active (w)))
2967 return; 3976 return;
2968 3977
… …
2980 3989
2981 EV_FREQUENT_CHECK; 3990 EV_FREQUENT_CHECK;
2982} 3991}
2983#endif 3992#endif
2984 3993
3994#if EV_PREPARE_ENABLE
2985void 3995void
2986ev_prepare_start (EV_P_ ev_prepare *w) 3996ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
2987{ 3997{
2988 if (expect_false (ev_is_active (w))) 3998 if (expect_false (ev_is_active (w)))
2989 return; 3999 return;
2990 4000
2991 EV_FREQUENT_CHECK; 4001 EV_FREQUENT_CHECK;
… …
2996 4006
2997 EV_FREQUENT_CHECK; 4007 EV_FREQUENT_CHECK;
2998} 4008}
2999 4009
3000void 4010void
3001ev_prepare_stop (EV_P_ ev_prepare *w) 4011ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3002{ 4012{
3003 clear_pending (EV_A_ (W)w); 4013 clear_pending (EV_A_ (W)w);
3004 if (expect_false (!ev_is_active (w))) 4014 if (expect_false (!ev_is_active (w)))
3005 return; 4015 return;
3006 4016
… …
3015 4025
3016 ev_stop (EV_A_ (W)w); 4026 ev_stop (EV_A_ (W)w);
3017 4027
3018 EV_FREQUENT_CHECK; 4028 EV_FREQUENT_CHECK;
3019} 4029}
4030#endif
3020 4031
4032#if EV_CHECK_ENABLE
3021void 4033void
3022ev_check_start (EV_P_ ev_check *w) 4034ev_check_start (EV_P_ ev_check *w) EV_THROW
3023{ 4035{
3024 if (expect_false (ev_is_active (w))) 4036 if (expect_false (ev_is_active (w)))
3025 return; 4037 return;
3026 4038
3027 EV_FREQUENT_CHECK; 4039 EV_FREQUENT_CHECK;
… …
3032 4044
3033 EV_FREQUENT_CHECK; 4045 EV_FREQUENT_CHECK;
3034} 4046}
3035 4047
3036void 4048void
3037ev_check_stop (EV_P_ ev_check *w) 4049ev_check_stop (EV_P_ ev_check *w) EV_THROW
3038{ 4050{
3039 clear_pending (EV_A_ (W)w); 4051 clear_pending (EV_A_ (W)w);
3040 if (expect_false (!ev_is_active (w))) 4052 if (expect_false (!ev_is_active (w)))
3041 return; 4053 return;
3042 4054
… …
3051 4063
3052 ev_stop (EV_A_ (W)w); 4064 ev_stop (EV_A_ (W)w);
3053 4065
3054 EV_FREQUENT_CHECK; 4066 EV_FREQUENT_CHECK;
3055} 4067}
4068#endif
3056 4069
3057#if EV_EMBED_ENABLE 4070#if EV_EMBED_ENABLE
3058void noinline 4071void noinline
3059ev_embed_sweep (EV_P_ ev_embed *w) 4072ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3060{ 4073{
3061 ev_loop (w->other, EVLOOP_NONBLOCK); 4074 ev_run (w->other, EVRUN_NOWAIT);
3062} 4075}
3063 4076
3064static void 4077static void
3065embed_io_cb (EV_P_ ev_io *io, int revents) 4078embed_io_cb (EV_P_ ev_io *io, int revents)
3066{ 4079{
3067 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4080 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3068 4081
3069 if (ev_cb (w)) 4082 if (ev_cb (w))
3070 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4083 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3071 else 4084 else
3072 ev_loop (w->other, EVLOOP_NONBLOCK); 4085 ev_run (w->other, EVRUN_NOWAIT);
3073} 4086}
3074 4087
3075static void 4088static void
3076embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4089embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3077{ 4090{
3078 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4091 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3079 4092
3080 { 4093 {
3081 struct ev_loop *loop = w->other; 4094 EV_P = w->other;
3082 4095
3083 while (fdchangecnt) 4096 while (fdchangecnt)
3084 { 4097 {
3085 fd_reify (EV_A); 4098 fd_reify (EV_A);
3086 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4099 ev_run (EV_A_ EVRUN_NOWAIT);
3087 } 4100 }
3088 } 4101 }
3089} 4102}
3090 4103
3091static void 4104static void
… …
3094 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4107 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3095 4108
3096 ev_embed_stop (EV_A_ w); 4109 ev_embed_stop (EV_A_ w);
3097 4110
3098 { 4111 {
3099 struct ev_loop *loop = w->other; 4112 EV_P = w->other;
3100 4113
3101 ev_loop_fork (EV_A); 4114 ev_loop_fork (EV_A);
3102 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4115 ev_run (EV_A_ EVRUN_NOWAIT);
3103 } 4116 }
3104 4117
3105 ev_embed_start (EV_A_ w); 4118 ev_embed_start (EV_A_ w);
3106} 4119}
3107 4120
… …
3112 ev_idle_stop (EV_A_ idle); 4125 ev_idle_stop (EV_A_ idle);
3113} 4126}
3114#endif 4127#endif
3115 4128
3116void 4129void
3117ev_embed_start (EV_P_ ev_embed *w) 4130ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3118{ 4131{
3119 if (expect_false (ev_is_active (w))) 4132 if (expect_false (ev_is_active (w)))
3120 return; 4133 return;
3121 4134
3122 { 4135 {
3123 struct ev_loop *loop = w->other; 4136 EV_P = w->other;
3124 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4137 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3125 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4138 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3126 } 4139 }
3127 4140
3128 EV_FREQUENT_CHECK; 4141 EV_FREQUENT_CHECK;
… …
3143 4156
3144 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3145} 4158}
3146 4159
3147void 4160void
3148ev_embed_stop (EV_P_ ev_embed *w) 4161ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3149{ 4162{
3150 clear_pending (EV_A_ (W)w); 4163 clear_pending (EV_A_ (W)w);
3151 if (expect_false (!ev_is_active (w))) 4164 if (expect_false (!ev_is_active (w)))
3152 return; 4165 return;
3153 4166
… …
3155 4168
3156 ev_io_stop (EV_A_ &w->io); 4169 ev_io_stop (EV_A_ &w->io);
3157 ev_prepare_stop (EV_A_ &w->prepare); 4170 ev_prepare_stop (EV_A_ &w->prepare);
3158 ev_fork_stop (EV_A_ &w->fork); 4171 ev_fork_stop (EV_A_ &w->fork);
3159 4172
4173 ev_stop (EV_A_ (W)w);
4174
3160 EV_FREQUENT_CHECK; 4175 EV_FREQUENT_CHECK;
3161} 4176}
3162#endif 4177#endif
3163 4178
3164#if EV_FORK_ENABLE 4179#if EV_FORK_ENABLE
3165void 4180void
3166ev_fork_start (EV_P_ ev_fork *w) 4181ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3167{ 4182{
3168 if (expect_false (ev_is_active (w))) 4183 if (expect_false (ev_is_active (w)))
3169 return; 4184 return;
3170 4185
3171 EV_FREQUENT_CHECK; 4186 EV_FREQUENT_CHECK;
… …
3176 4191
3177 EV_FREQUENT_CHECK; 4192 EV_FREQUENT_CHECK;
3178} 4193}
3179 4194
3180void 4195void
3181ev_fork_stop (EV_P_ ev_fork *w) 4196ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3182{ 4197{
3183 clear_pending (EV_A_ (W)w); 4198 clear_pending (EV_A_ (W)w);
3184 if (expect_false (!ev_is_active (w))) 4199 if (expect_false (!ev_is_active (w)))
3185 return; 4200 return;
3186 4201
… …
3197 4212
3198 EV_FREQUENT_CHECK; 4213 EV_FREQUENT_CHECK;
3199} 4214}
3200#endif 4215#endif
3201 4216
4217#if EV_CLEANUP_ENABLE
4218void
4219ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4220{
4221 if (expect_false (ev_is_active (w)))
4222 return;
4223
4224 EV_FREQUENT_CHECK;
4225
4226 ev_start (EV_A_ (W)w, ++cleanupcnt);
4227 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4228 cleanups [cleanupcnt - 1] = w;
4229
4230 /* cleanup watchers should never keep a refcount on the loop */
4231 ev_unref (EV_A);
4232 EV_FREQUENT_CHECK;
4233}
4234
4235void
4236ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4237{
4238 clear_pending (EV_A_ (W)w);
4239 if (expect_false (!ev_is_active (w)))
4240 return;
4241
4242 EV_FREQUENT_CHECK;
4243 ev_ref (EV_A);
4244
4245 {
4246 int active = ev_active (w);
4247
4248 cleanups [active - 1] = cleanups [--cleanupcnt];
4249 ev_active (cleanups [active - 1]) = active;
4250 }
4251
4252 ev_stop (EV_A_ (W)w);
4253
4254 EV_FREQUENT_CHECK;
4255}
4256#endif
4257
3202#if EV_ASYNC_ENABLE 4258#if EV_ASYNC_ENABLE
3203void 4259void
3204ev_async_start (EV_P_ ev_async *w) 4260ev_async_start (EV_P_ ev_async *w) EV_THROW
3205{ 4261{
3206 if (expect_false (ev_is_active (w))) 4262 if (expect_false (ev_is_active (w)))
3207 return; 4263 return;
4264
4265 w->sent = 0;
3208 4266
3209 evpipe_init (EV_A); 4267 evpipe_init (EV_A);
3210 4268
3211 EV_FREQUENT_CHECK; 4269 EV_FREQUENT_CHECK;
3212 4270
… …
3216 4274
3217 EV_FREQUENT_CHECK; 4275 EV_FREQUENT_CHECK;
3218} 4276}
3219 4277
3220void 4278void
3221ev_async_stop (EV_P_ ev_async *w) 4279ev_async_stop (EV_P_ ev_async *w) EV_THROW
3222{ 4280{
3223 clear_pending (EV_A_ (W)w); 4281 clear_pending (EV_A_ (W)w);
3224 if (expect_false (!ev_is_active (w))) 4282 if (expect_false (!ev_is_active (w)))
3225 return; 4283 return;
3226 4284
… …
3237 4295
3238 EV_FREQUENT_CHECK; 4296 EV_FREQUENT_CHECK;
3239} 4297}
3240 4298
3241void 4299void
3242ev_async_send (EV_P_ ev_async *w) 4300ev_async_send (EV_P_ ev_async *w) EV_THROW
3243{ 4301{
3244 w->sent = 1; 4302 w->sent = 1;
3245 evpipe_write (EV_A_ &gotasync); 4303 evpipe_write (EV_A_ &async_pending);
3246} 4304}
3247#endif 4305#endif
3248 4306
3249/*****************************************************************************/ 4307/*****************************************************************************/
3250 4308
… …
3284 4342
3285 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4343 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3286} 4344}
3287 4345
3288void 4346void
3289ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4347ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3290{ 4348{
3291 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4349 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3292 4350
3293 if (expect_false (!once)) 4351 if (expect_false (!once))
3294 { 4352 {
3295 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4353 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3296 return; 4354 return;
3297 } 4355 }
3298 4356
3299 once->cb = cb; 4357 once->cb = cb;
3300 once->arg = arg; 4358 once->arg = arg;
… …
3315} 4373}
3316 4374
3317/*****************************************************************************/ 4375/*****************************************************************************/
3318 4376
3319#if EV_WALK_ENABLE 4377#if EV_WALK_ENABLE
3320void 4378void ecb_cold
3321ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4379ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3322{ 4380{
3323 int i, j; 4381 int i, j;
3324 ev_watcher_list *wl, *wn; 4382 ev_watcher_list *wl, *wn;
3325 4383
3326 if (types & (EV_IO | EV_EMBED)) 4384 if (types & (EV_IO | EV_EMBED))
… …
3369 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4427 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3370#endif 4428#endif
3371 4429
3372#if EV_IDLE_ENABLE 4430#if EV_IDLE_ENABLE
3373 if (types & EV_IDLE) 4431 if (types & EV_IDLE)
3374 for (j = NUMPRI; i--; ) 4432 for (j = NUMPRI; j--; )
3375 for (i = idlecnt [j]; i--; ) 4433 for (i = idlecnt [j]; i--; )
3376 cb (EV_A_ EV_IDLE, idles [j][i]); 4434 cb (EV_A_ EV_IDLE, idles [j][i]);
3377#endif 4435#endif
3378 4436
3379#if EV_FORK_ENABLE 4437#if EV_FORK_ENABLE
… …
3387 if (types & EV_ASYNC) 4445 if (types & EV_ASYNC)
3388 for (i = asynccnt; i--; ) 4446 for (i = asynccnt; i--; )
3389 cb (EV_A_ EV_ASYNC, asyncs [i]); 4447 cb (EV_A_ EV_ASYNC, asyncs [i]);
3390#endif 4448#endif
3391 4449
4450#if EV_PREPARE_ENABLE
3392 if (types & EV_PREPARE) 4451 if (types & EV_PREPARE)
3393 for (i = preparecnt; i--; ) 4452 for (i = preparecnt; i--; )
3394#if EV_EMBED_ENABLE 4453# if EV_EMBED_ENABLE
3395 if (ev_cb (prepares [i]) != embed_prepare_cb) 4454 if (ev_cb (prepares [i]) != embed_prepare_cb)
3396#endif 4455# endif
3397 cb (EV_A_ EV_PREPARE, prepares [i]); 4456 cb (EV_A_ EV_PREPARE, prepares [i]);
4457#endif
3398 4458
4459#if EV_CHECK_ENABLE
3399 if (types & EV_CHECK) 4460 if (types & EV_CHECK)
3400 for (i = checkcnt; i--; ) 4461 for (i = checkcnt; i--; )
3401 cb (EV_A_ EV_CHECK, checks [i]); 4462 cb (EV_A_ EV_CHECK, checks [i]);
4463#endif
3402 4464
4465#if EV_SIGNAL_ENABLE
3403 if (types & EV_SIGNAL) 4466 if (types & EV_SIGNAL)
3404 for (i = 0; i < signalmax; ++i) 4467 for (i = 0; i < EV_NSIG - 1; ++i)
3405 for (wl = signals [i].head; wl; ) 4468 for (wl = signals [i].head; wl; )
3406 { 4469 {
3407 wn = wl->next; 4470 wn = wl->next;
3408 cb (EV_A_ EV_SIGNAL, wl); 4471 cb (EV_A_ EV_SIGNAL, wl);
3409 wl = wn; 4472 wl = wn;
3410 } 4473 }
4474#endif
3411 4475
4476#if EV_CHILD_ENABLE
3412 if (types & EV_CHILD) 4477 if (types & EV_CHILD)
3413 for (i = EV_PID_HASHSIZE; i--; ) 4478 for (i = (EV_PID_HASHSIZE); i--; )
3414 for (wl = childs [i]; wl; ) 4479 for (wl = childs [i]; wl; )
3415 { 4480 {
3416 wn = wl->next; 4481 wn = wl->next;
3417 cb (EV_A_ EV_CHILD, wl); 4482 cb (EV_A_ EV_CHILD, wl);
3418 wl = wn; 4483 wl = wn;
3419 } 4484 }
4485#endif
3420/* EV_STAT 0x00001000 /* stat data changed */ 4486/* EV_STAT 0x00001000 /* stat data changed */
3421/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4487/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3422} 4488}
3423#endif 4489#endif
3424 4490
3425#if EV_MULTIPLICITY 4491#if EV_MULTIPLICITY
3426 #include "ev_wrap.h" 4492 #include "ev_wrap.h"
3427#endif 4493#endif
3428 4494
3429#ifdef __cplusplus
3430}
3431#endif
3432

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