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Comparing libev/ev.c (file contents):
Revision 1.290 by root, Mon Jun 29 04:41:34 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
288
289/* this block fixes any misconfiguration where we know we run into trouble otherwise */
290
291#ifndef CLOCK_MONOTONIC
292# undef EV_USE_MONOTONIC
293# define EV_USE_MONOTONIC 0
294#endif
295
296#ifndef CLOCK_REALTIME
297# undef EV_USE_REALTIME
298# define EV_USE_REALTIME 0
299#endif
300
301#if !EV_STAT_ENABLE
302# undef EV_USE_INOTIFY
303# define EV_USE_INOTIFY 0
304#endif
305
306#if !EV_USE_NANOSLEEP
307# ifndef _WIN32
308# include <sys/select.h>
309# endif
310#endif
311
312#if EV_USE_INOTIFY
313# include <sys/utsname.h>
314# include <sys/statfs.h>
315# include <sys/inotify.h>
316/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
317# ifndef IN_DONT_FOLLOW
318# undef EV_USE_INOTIFY
319# define EV_USE_INOTIFY 0
320# endif
321#endif
322
323#if EV_SELECT_IS_WINSOCKET
324# include <winsock.h>
325#endif 359#endif
326 360
327/* 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, */
328/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
329#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
330# include <syscall.h> 364# include <sys/syscall.h>
331# ifdef SYS_clock_gettime 365# ifdef SYS_clock_gettime
332# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
333# undef EV_USE_MONOTONIC 367# undef EV_USE_MONOTONIC
334# define EV_USE_MONOTONIC 1 368# define EV_USE_MONOTONIC 1
335# else 369# else
336# undef EV_USE_CLOCK_SYSCALL 370# undef EV_USE_CLOCK_SYSCALL
337# define EV_USE_CLOCK_SYSCALL 0 371# define EV_USE_CLOCK_SYSCALL 0
338# endif 372# endif
339#endif 373#endif
340 374
375/* this block fixes any misconfiguration where we know we run into trouble otherwise */
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
383#ifndef CLOCK_MONOTONIC
384# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 0
386#endif
387
388#ifndef CLOCK_REALTIME
389# undef EV_USE_REALTIME
390# define EV_USE_REALTIME 0
391#endif
392
393#if !EV_STAT_ENABLE
394# undef EV_USE_INOTIFY
395# define EV_USE_INOTIFY 0
396#endif
397
398#if !EV_USE_NANOSLEEP
399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
401# include <sys/select.h>
402# endif
403#endif
404
405#if EV_USE_INOTIFY
406# include <sys/statfs.h>
407# include <sys/inotify.h>
408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0
412# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif
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
966#endif
967
968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
969
970#if EV_MINPRI == EV_MAXPRI
971# define ABSPRI(w) (((W)w), 0)
392#else 972#else
393# define inline_speed static inline
394#endif
395
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 973# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
974#endif
398 975
399#define EMPTY /* required for microsofts broken pseudo-c compiler */ 976#define EMPTY /* required for microsofts broken pseudo-c compiler */
400#define EMPTY2(a,b) /* used to suppress some warnings */ 977#define EMPTY2(a,b) /* used to suppress some warnings */
401 978
402typedef ev_watcher *W; 979typedef ev_watcher *W;
… …
406#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
407#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
408 985
409#if EV_USE_REALTIME 986#if EV_USE_REALTIME
410/* 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 */
411/* giving it a reasonably high chance of working on typical architetcures */ 988/* giving it a reasonably high chance of working on typical architectures */
412static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
413#endif 990#endif
414 991
415#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
416static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
417#endif 994#endif
418 995
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
419#ifdef _WIN32 1006#ifdef _WIN32
420# include "ev_win32.c" 1007# include "ev_win32.c"
421#endif 1008#endif
422 1009
423/*****************************************************************************/ 1010/*****************************************************************************/
424 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
425static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
426 1111
427void 1112void ecb_cold
428ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
429{ 1114{
430 syserr_cb = cb; 1115 syserr_cb = cb;
431} 1116}
432 1117
433static void noinline 1118static void noinline ecb_cold
434ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
435{ 1120{
436 if (!msg) 1121 if (!msg)
437 msg = "(libev) system error"; 1122 msg = "(libev) system error";
438 1123
439 if (syserr_cb) 1124 if (syserr_cb)
440 syserr_cb (msg); 1125 syserr_cb (msg);
441 else 1126 else
442 { 1127 {
1128#if EV_AVOID_STDIO
1129 ev_printerr (msg);
1130 ev_printerr (": ");
1131 ev_printerr (strerror (errno));
1132 ev_printerr ("\n");
1133#else
443 perror (msg); 1134 perror (msg);
1135#endif
444 abort (); 1136 abort ();
445 } 1137 }
446} 1138}
447 1139
448static void * 1140static void *
449ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
450{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
451 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
452 * 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
453 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
454 */ 1149 */
455 1150
456 if (size) 1151 if (size)
457 return realloc (ptr, size); 1152 return realloc (ptr, size);
458 1153
459 free (ptr); 1154 free (ptr);
460 return 0; 1155 return 0;
1156#endif
461} 1157}
462 1158
463static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
464 1160
465void 1161void ecb_cold
466ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
467{ 1163{
468 alloc = cb; 1164 alloc = cb;
469} 1165}
470 1166
471inline_speed void * 1167inline_speed void *
… …
473{ 1169{
474 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
475 1171
476 if (!ptr && size) 1172 if (!ptr && size)
477 { 1173 {
1174#if EV_AVOID_STDIO
1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1176#else
478 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1178#endif
479 abort (); 1179 abort ();
480 } 1180 }
481 1181
482 return ptr; 1182 return ptr;
483} 1183}
… …
485#define ev_malloc(size) ev_realloc (0, (size)) 1185#define ev_malloc(size) ev_realloc (0, (size))
486#define ev_free(ptr) ev_realloc ((ptr), 0) 1186#define ev_free(ptr) ev_realloc ((ptr), 0)
487 1187
488/*****************************************************************************/ 1188/*****************************************************************************/
489 1189
1190/* set in reify when reification needed */
1191#define EV_ANFD_REIFY 1
1192
490/* file descriptor info structure */ 1193/* file descriptor info structure */
491typedef struct 1194typedef struct
492{ 1195{
493 WL head; 1196 WL head;
494 unsigned char events; /* the events watched for */ 1197 unsigned char events; /* the events watched for */
495 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) */
496 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 */
497 unsigned char unused; 1200 unsigned char unused;
498#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
499 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
500#endif 1203#endif
501#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
502 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
503#endif 1209#endif
504} ANFD; 1210} ANFD;
505 1211
506/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
507typedef struct 1213typedef struct
… …
549 #undef VAR 1255 #undef VAR
550 }; 1256 };
551 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
552 1258
553 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
554 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 */
555 1261
556#else 1262#else
557 1263
558 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 */
559 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
560 #include "ev_vars.h" 1266 #include "ev_vars.h"
561 #undef VAR 1267 #undef VAR
562 1268
563 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
564 1270
565#endif 1271#endif
566 1272
1273#if EV_FEATURE_API
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)
1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
1277#else
1278# define EV_RELEASE_CB (void)0
1279# define EV_ACQUIRE_CB (void)0
1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
1281#endif
1282
1283#define EVBREAK_RECURSE 0x80
1284
567/*****************************************************************************/ 1285/*****************************************************************************/
568 1286
1287#ifndef EV_HAVE_EV_TIME
569ev_tstamp 1288ev_tstamp
570ev_time (void) 1289ev_time (void) EV_THROW
571{ 1290{
572#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
573 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
574 { 1293 {
575 struct timespec ts; 1294 struct timespec ts;
… …
580 1299
581 struct timeval tv; 1300 struct timeval tv;
582 gettimeofday (&tv, 0); 1301 gettimeofday (&tv, 0);
583 return tv.tv_sec + tv.tv_usec * 1e-6; 1302 return tv.tv_sec + tv.tv_usec * 1e-6;
584} 1303}
1304#endif
585 1305
586inline_size ev_tstamp 1306inline_size ev_tstamp
587get_clock (void) 1307get_clock (void)
588{ 1308{
589#if EV_USE_MONOTONIC 1309#if EV_USE_MONOTONIC
… …
598 return ev_time (); 1318 return ev_time ();
599} 1319}
600 1320
601#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
602ev_tstamp 1322ev_tstamp
603ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
604{ 1324{
605 return ev_rt_now; 1325 return ev_rt_now;
606} 1326}
607#endif 1327#endif
608 1328
609void 1329void
610ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
611{ 1331{
612 if (delay > 0.) 1332 if (delay > 0.)
613 { 1333 {
614#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
615 struct timespec ts; 1335 struct timespec ts;
616 1336
617 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
618 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
619
620 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
621#elif defined(_WIN32) 1339#elif defined _WIN32
622 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
623#else 1341#else
624 struct timeval tv; 1342 struct timeval tv;
625 1343
626 tv.tv_sec = (time_t)delay;
627 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
628
629 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
630 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
631 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
632 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
633#endif 1349#endif
634 } 1350 }
635} 1351}
636 1352
637/*****************************************************************************/ 1353/*****************************************************************************/
638 1354
639#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 */
640 1356
641/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
642/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
643inline_size int 1359inline_size int
644array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
645{ 1361{
646 int ncur = cur + 1; 1362 int ncur = cur + 1;
647 1363
648 do 1364 do
649 ncur <<= 1; 1365 ncur <<= 1;
650 while (cnt > ncur); 1366 while (cnt > ncur);
651 1367
652 /* 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 */
653 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
654 { 1370 {
655 ncur *= elem; 1371 ncur *= elem;
656 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);
657 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
659 } 1375 }
660 1376
661 return ncur; 1377 return ncur;
662} 1378}
663 1379
664static noinline void * 1380static void * noinline ecb_cold
665array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
666{ 1382{
667 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
668 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
669} 1385}
… …
672 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
673 1389
674#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
675 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
676 { \ 1392 { \
677 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
678 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
679 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
680 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
681 } 1397 }
682 1398
… …
700pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
701{ 1417{
702} 1418}
703 1419
704void noinline 1420void noinline
705ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
706{ 1422{
707 W w_ = (W)w; 1423 W w_ = (W)w;
708 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
709 1425
710 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
743} 1459}
744 1460
745/*****************************************************************************/ 1461/*****************************************************************************/
746 1462
747inline_speed void 1463inline_speed void
748fd_event (EV_P_ int fd, int revents) 1464fd_event_nocheck (EV_P_ int fd, int revents)
749{ 1465{
750 ANFD *anfd = anfds + fd; 1466 ANFD *anfd = anfds + fd;
751 ev_io *w; 1467 ev_io *w;
752 1468
753 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)
… …
757 if (ev) 1473 if (ev)
758 ev_feed_event (EV_A_ (W)w, ev); 1474 ev_feed_event (EV_A_ (W)w, ev);
759 } 1475 }
760} 1476}
761 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
762void 1489void
763ev_feed_fd_event (EV_P_ int fd, int revents) 1490ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
764{ 1491{
765 if (fd >= 0 && fd < anfdmax) 1492 if (fd >= 0 && fd < anfdmax)
766 fd_event (EV_A_ fd, revents); 1493 fd_event_nocheck (EV_A_ fd, revents);
767} 1494}
768 1495
769/* make sure the external fd watch events are in-sync */ 1496/* make sure the external fd watch events are in-sync */
770/* with the kernel/libev internal state */ 1497/* with the kernel/libev internal state */
771inline_size void 1498inline_size void
772fd_reify (EV_P) 1499fd_reify (EV_P)
773{ 1500{
774 int i; 1501 int i;
775 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
776 for (i = 0; i < fdchangecnt; ++i) 1528 for (i = 0; i < fdchangecnt; ++i)
777 { 1529 {
778 int fd = fdchanges [i]; 1530 int fd = fdchanges [i];
779 ANFD *anfd = anfds + fd; 1531 ANFD *anfd = anfds + fd;
780 ev_io *w; 1532 ev_io *w;
781 1533
782 unsigned char events = 0; 1534 unsigned char o_events = anfd->events;
1535 unsigned char o_reify = anfd->reify;
783 1536
784 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1537 anfd->reify = 0;
785 events |= (unsigned char)w->events;
786 1538
787#if EV_SELECT_IS_WINSOCKET 1539 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
788 if (events)
789 { 1540 {
790 unsigned long arg; 1541 anfd->events = 0;
791 #ifdef EV_FD_TO_WIN32_HANDLE 1542
792 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1543 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
793 #else 1544 anfd->events |= (unsigned char)w->events;
794 anfd->handle = _get_osfhandle (fd); 1545
795 #endif 1546 if (o_events != anfd->events)
796 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1547 o_reify = EV__IOFDSET; /* actually |= */
797 } 1548 }
798#endif
799 1549
800 { 1550 if (o_reify & EV__IOFDSET)
801 unsigned char o_events = anfd->events;
802 unsigned char o_reify = anfd->reify;
803
804 anfd->reify = 0;
805 anfd->events = events;
806
807 if (o_events != events || o_reify & EV__IOFDSET)
808 backend_modify (EV_A_ fd, o_events, events); 1551 backend_modify (EV_A_ fd, o_events, anfd->events);
809 }
810 } 1552 }
811 1553
812 fdchangecnt = 0; 1554 fdchangecnt = 0;
813} 1555}
814 1556
… …
826 fdchanges [fdchangecnt - 1] = fd; 1568 fdchanges [fdchangecnt - 1] = fd;
827 } 1569 }
828} 1570}
829 1571
830/* 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 */
831inline_speed void 1573inline_speed void ecb_cold
832fd_kill (EV_P_ int fd) 1574fd_kill (EV_P_ int fd)
833{ 1575{
834 ev_io *w; 1576 ev_io *w;
835 1577
836 while ((w = (ev_io *)anfds [fd].head)) 1578 while ((w = (ev_io *)anfds [fd].head))
… …
838 ev_io_stop (EV_A_ w); 1580 ev_io_stop (EV_A_ w);
839 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);
840 } 1582 }
841} 1583}
842 1584
843/* check whether the given fd is atcually valid, for error recovery */ 1585/* check whether the given fd is actually valid, for error recovery */
844inline_size int 1586inline_size int ecb_cold
845fd_valid (int fd) 1587fd_valid (int fd)
846{ 1588{
847#ifdef _WIN32 1589#ifdef _WIN32
848 return _get_osfhandle (fd) != -1; 1590 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
849#else 1591#else
850 return fcntl (fd, F_GETFD) != -1; 1592 return fcntl (fd, F_GETFD) != -1;
851#endif 1593#endif
852} 1594}
853 1595
854/* called on EBADF to verify fds */ 1596/* called on EBADF to verify fds */
855static void noinline 1597static void noinline ecb_cold
856fd_ebadf (EV_P) 1598fd_ebadf (EV_P)
857{ 1599{
858 int fd; 1600 int fd;
859 1601
860 for (fd = 0; fd < anfdmax; ++fd) 1602 for (fd = 0; fd < anfdmax; ++fd)
… …
862 if (!fd_valid (fd) && errno == EBADF) 1604 if (!fd_valid (fd) && errno == EBADF)
863 fd_kill (EV_A_ fd); 1605 fd_kill (EV_A_ fd);
864} 1606}
865 1607
866/* 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 */
867static void noinline 1609static void noinline ecb_cold
868fd_enomem (EV_P) 1610fd_enomem (EV_P)
869{ 1611{
870 int fd; 1612 int fd;
871 1613
872 for (fd = anfdmax; fd--; ) 1614 for (fd = anfdmax; fd--; )
873 if (anfds [fd].events) 1615 if (anfds [fd].events)
874 { 1616 {
875 fd_kill (EV_A_ fd); 1617 fd_kill (EV_A_ fd);
876 return; 1618 break;
877 } 1619 }
878} 1620}
879 1621
880/* 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 */
881static void noinline 1623static void noinline
… …
886 for (fd = 0; fd < anfdmax; ++fd) 1628 for (fd = 0; fd < anfdmax; ++fd)
887 if (anfds [fd].events) 1629 if (anfds [fd].events)
888 { 1630 {
889 anfds [fd].events = 0; 1631 anfds [fd].events = 0;
890 anfds [fd].emask = 0; 1632 anfds [fd].emask = 0;
891 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1633 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
892 } 1634 }
893} 1635}
894 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
895/*****************************************************************************/ 1651/*****************************************************************************/
896 1652
897/* 1653/*
898 * 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
899 * 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
900 * the branching factor of the d-tree. 1656 * the branching factor of the d-tree.
901 */ 1657 */
902 1658
903/* 1659/*
… …
971 1727
972 for (;;) 1728 for (;;)
973 { 1729 {
974 int c = k << 1; 1730 int c = k << 1;
975 1731
976 if (c > N + HEAP0 - 1) 1732 if (c >= N + HEAP0)
977 break; 1733 break;
978 1734
979 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])
980 ? 1 : 0; 1736 ? 1 : 0;
981 1737
… …
1017 1773
1018/* move an element suitably so it is in a correct place */ 1774/* move an element suitably so it is in a correct place */
1019inline_size void 1775inline_size void
1020adjustheap (ANHE *heap, int N, int k) 1776adjustheap (ANHE *heap, int N, int k)
1021{ 1777{
1022 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)]))
1023 upheap (heap, k); 1779 upheap (heap, k);
1024 else 1780 else
1025 downheap (heap, N, k); 1781 downheap (heap, N, k);
1026} 1782}
1027 1783
… …
1040/*****************************************************************************/ 1796/*****************************************************************************/
1041 1797
1042/* associate signal watchers to a signal signal */ 1798/* associate signal watchers to a signal signal */
1043typedef struct 1799typedef struct
1044{ 1800{
1801 EV_ATOMIC_T pending;
1802#if EV_MULTIPLICITY
1803 EV_P;
1804#endif
1045 WL head; 1805 WL head;
1046 EV_ATOMIC_T gotsig;
1047} ANSIG; 1806} ANSIG;
1048 1807
1049static ANSIG *signals; 1808static ANSIG signals [EV_NSIG - 1];
1050static int signalmax;
1051
1052static EV_ATOMIC_T gotsig;
1053 1809
1054/*****************************************************************************/ 1810/*****************************************************************************/
1055 1811
1056/* used to prepare libev internal fd's */ 1812#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1057/* this is not fork-safe */
1058inline_speed void
1059fd_intern (int fd)
1060{
1061#ifdef _WIN32
1062 unsigned long arg = 1;
1063 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1064#else
1065 fcntl (fd, F_SETFD, FD_CLOEXEC);
1066 fcntl (fd, F_SETFL, O_NONBLOCK);
1067#endif
1068}
1069 1813
1070static void noinline 1814static void noinline ecb_cold
1071evpipe_init (EV_P) 1815evpipe_init (EV_P)
1072{ 1816{
1073 if (!ev_is_active (&pipe_w)) 1817 if (!ev_is_active (&pipe_w))
1074 { 1818 {
1075#if EV_USE_EVENTFD 1819# if EV_USE_EVENTFD
1820 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1821 if (evfd < 0 && errno == EINVAL)
1076 if ((evfd = eventfd (0, 0)) >= 0) 1822 evfd = eventfd (0, 0);
1823
1824 if (evfd >= 0)
1077 { 1825 {
1078 evpipe [0] = -1; 1826 evpipe [0] = -1;
1079 fd_intern (evfd); 1827 fd_intern (evfd); /* doing it twice doesn't hurt */
1080 ev_io_set (&pipe_w, evfd, EV_READ); 1828 ev_io_set (&pipe_w, evfd, EV_READ);
1081 } 1829 }
1082 else 1830 else
1083#endif 1831# endif
1084 { 1832 {
1085 while (pipe (evpipe)) 1833 while (pipe (evpipe))
1086 ev_syserr ("(libev) error creating signal/async pipe"); 1834 ev_syserr ("(libev) error creating signal/async pipe");
1087 1835
1088 fd_intern (evpipe [0]); 1836 fd_intern (evpipe [0]);
… …
1093 ev_io_start (EV_A_ &pipe_w); 1841 ev_io_start (EV_A_ &pipe_w);
1094 ev_unref (EV_A); /* watcher should not keep loop alive */ 1842 ev_unref (EV_A); /* watcher should not keep loop alive */
1095 } 1843 }
1096} 1844}
1097 1845
1098inline_size void 1846inline_speed void
1099evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1847evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1100{ 1848{
1101 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)
1102 { 1863 {
1864 int old_errno;
1865
1866 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1867
1103 int old_errno = errno; /* save errno because write might clobber it */ 1868 old_errno = errno; /* save errno because write will clobber it */
1104
1105 *flag = 1;
1106 1869
1107#if EV_USE_EVENTFD 1870#if EV_USE_EVENTFD
1108 if (evfd >= 0) 1871 if (evfd >= 0)
1109 { 1872 {
1110 uint64_t counter = 1; 1873 uint64_t counter = 1;
1111 write (evfd, &counter, sizeof (uint64_t)); 1874 write (evfd, &counter, sizeof (uint64_t));
1112 } 1875 }
1113 else 1876 else
1114#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 */
1115 write (evpipe [1], &old_errno, 1); 1886 write (evpipe [1], &(evpipe [1]), 1);
1887 }
1116 1888
1117 errno = old_errno; 1889 errno = old_errno;
1118 } 1890 }
1119} 1891}
1120 1892
1121/* called whenever the libev signal pipe */ 1893/* called whenever the libev signal pipe */
1122/* got some events (signal, async) */ 1894/* got some events (signal, async) */
1123static void 1895static void
1124pipecb (EV_P_ ev_io *iow, int revents) 1896pipecb (EV_P_ ev_io *iow, int revents)
1125{ 1897{
1898 int i;
1899
1900 if (revents & EV_READ)
1901 {
1126#if EV_USE_EVENTFD 1902#if EV_USE_EVENTFD
1127 if (evfd >= 0) 1903 if (evfd >= 0)
1128 { 1904 {
1129 uint64_t counter; 1905 uint64_t counter;
1130 read (evfd, &counter, sizeof (uint64_t)); 1906 read (evfd, &counter, sizeof (uint64_t));
1131 } 1907 }
1132 else 1908 else
1133#endif 1909#endif
1134 { 1910 {
1135 char dummy; 1911 char dummy;
1912 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1136 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)
1137 } 1923 {
1924 sig_pending = 0;
1138 1925
1139 if (gotsig && ev_is_default_loop (EV_A)) 1926 ECB_MEMORY_FENCE_RELEASE;
1140 {
1141 int signum;
1142 gotsig = 0;
1143 1927
1144 for (signum = signalmax; signum--; ) 1928 for (i = EV_NSIG - 1; i--; )
1145 if (signals [signum].gotsig) 1929 if (expect_false (signals [i].pending))
1146 ev_feed_signal_event (EV_A_ signum + 1); 1930 ev_feed_signal_event (EV_A_ i + 1);
1147 } 1931 }
1932#endif
1148 1933
1149#if EV_ASYNC_ENABLE 1934#if EV_ASYNC_ENABLE
1150 if (gotasync) 1935 if (async_pending)
1151 { 1936 {
1152 int i; 1937 async_pending = 0;
1153 gotasync = 0; 1938
1939 ECB_MEMORY_FENCE_RELEASE;
1154 1940
1155 for (i = asynccnt; i--; ) 1941 for (i = asynccnt; i--; )
1156 if (asyncs [i]->sent) 1942 if (asyncs [i]->sent)
1157 { 1943 {
1158 asyncs [i]->sent = 0; 1944 asyncs [i]->sent = 0;
… …
1162#endif 1948#endif
1163} 1949}
1164 1950
1165/*****************************************************************************/ 1951/*****************************************************************************/
1166 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
1167static void 1970static void
1168ev_sighandler (int signum) 1971ev_sighandler (int signum)
1169{ 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
1170#if EV_MULTIPLICITY 1990#if EV_MULTIPLICITY
1171 struct ev_loop *loop = &default_loop_struct; 1991 /* it is permissible to try to feed a signal to the wrong loop */
1172#endif 1992 /* or, likely more useful, feeding a signal nobody is waiting for */
1173 1993
1174#if _WIN32 1994 if (expect_false (signals [signum].loop != EV_A))
1175 signal (signum, ev_sighandler);
1176#endif
1177
1178 signals [signum - 1].gotsig = 1;
1179 evpipe_write (EV_A_ &gotsig);
1180}
1181
1182void noinline
1183ev_feed_signal_event (EV_P_ int signum)
1184{
1185 WL w;
1186
1187#if EV_MULTIPLICITY
1188 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1189#endif
1190
1191 --signum;
1192
1193 if (signum < 0 || signum >= signalmax)
1194 return; 1995 return;
1996#endif
1195 1997
1196 signals [signum].gotsig = 0; 1998 signals [signum].pending = 0;
1197 1999
1198 for (w = signals [signum].head; w; w = w->next) 2000 for (w = signals [signum].head; w; w = w->next)
1199 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2001 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1200} 2002}
1201 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
1202/*****************************************************************************/ 2026/*****************************************************************************/
1203 2027
2028#if EV_CHILD_ENABLE
1204static WL childs [EV_PID_HASHSIZE]; 2029static WL childs [EV_PID_HASHSIZE];
1205
1206#ifndef _WIN32
1207 2030
1208static ev_signal childev; 2031static ev_signal childev;
1209 2032
1210#ifndef WIFCONTINUED 2033#ifndef WIFCONTINUED
1211# define WIFCONTINUED(status) 0 2034# define WIFCONTINUED(status) 0
… …
1216child_reap (EV_P_ int chain, int pid, int status) 2039child_reap (EV_P_ int chain, int pid, int status)
1217{ 2040{
1218 ev_child *w; 2041 ev_child *w;
1219 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2042 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1220 2043
1221 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)
1222 { 2045 {
1223 if ((w->pid == pid || !w->pid) 2046 if ((w->pid == pid || !w->pid)
1224 && (!traced || (w->flags & 1))) 2047 && (!traced || (w->flags & 1)))
1225 { 2048 {
1226 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 */
… …
1251 /* 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 */
1252 /* 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 */
1253 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2076 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1254 2077
1255 child_reap (EV_A_ pid, pid, status); 2078 child_reap (EV_A_ pid, pid, status);
1256 if (EV_PID_HASHSIZE > 1) 2079 if ((EV_PID_HASHSIZE) > 1)
1257 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 */
1258} 2081}
1259 2082
1260#endif 2083#endif
1261 2084
1262/*****************************************************************************/ 2085/*****************************************************************************/
1263 2086
2087#if EV_USE_IOCP
2088# include "ev_iocp.c"
2089#endif
1264#if EV_USE_PORT 2090#if EV_USE_PORT
1265# include "ev_port.c" 2091# include "ev_port.c"
1266#endif 2092#endif
1267#if EV_USE_KQUEUE 2093#if EV_USE_KQUEUE
1268# include "ev_kqueue.c" 2094# include "ev_kqueue.c"
… …
1275#endif 2101#endif
1276#if EV_USE_SELECT 2102#if EV_USE_SELECT
1277# include "ev_select.c" 2103# include "ev_select.c"
1278#endif 2104#endif
1279 2105
1280int 2106int ecb_cold
1281ev_version_major (void) 2107ev_version_major (void) EV_THROW
1282{ 2108{
1283 return EV_VERSION_MAJOR; 2109 return EV_VERSION_MAJOR;
1284} 2110}
1285 2111
1286int 2112int ecb_cold
1287ev_version_minor (void) 2113ev_version_minor (void) EV_THROW
1288{ 2114{
1289 return EV_VERSION_MINOR; 2115 return EV_VERSION_MINOR;
1290} 2116}
1291 2117
1292/* 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 */
1293int inline_size 2119int inline_size ecb_cold
1294enable_secure (void) 2120enable_secure (void)
1295{ 2121{
1296#ifdef _WIN32 2122#ifdef _WIN32
1297 return 0; 2123 return 0;
1298#else 2124#else
1299 return getuid () != geteuid () 2125 return getuid () != geteuid ()
1300 || getgid () != getegid (); 2126 || getgid () != getegid ();
1301#endif 2127#endif
1302} 2128}
1303 2129
1304unsigned int 2130unsigned int ecb_cold
1305ev_supported_backends (void) 2131ev_supported_backends (void) EV_THROW
1306{ 2132{
1307 unsigned int flags = 0; 2133 unsigned int flags = 0;
1308 2134
1309 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2135 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1310 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2136 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1313 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2139 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1314 2140
1315 return flags; 2141 return flags;
1316} 2142}
1317 2143
1318unsigned int 2144unsigned int ecb_cold
1319ev_recommended_backends (void) 2145ev_recommended_backends (void) EV_THROW
1320{ 2146{
1321 unsigned int flags = ev_supported_backends (); 2147 unsigned int flags = ev_supported_backends ();
1322 2148
1323#ifndef __NetBSD__ 2149#ifndef __NetBSD__
1324 /* kqueue is borked on everything but netbsd apparently */ 2150 /* kqueue is borked on everything but netbsd apparently */
… …
1328#ifdef __APPLE__ 2154#ifdef __APPLE__
1329 /* only select works correctly on that "unix-certified" platform */ 2155 /* only select works correctly on that "unix-certified" platform */
1330 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2156 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1331 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 */
1332#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
1333 2162
1334 return flags; 2163 return flags;
1335} 2164}
1336 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
1337unsigned int 2178unsigned int
1338ev_embeddable_backends (void) 2179ev_backend (EV_P) EV_THROW
1339{ 2180{
1340 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2181 return backend;
1341
1342 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1343 /* please fix it and tell me how to detect the fix */
1344 flags &= ~EVBACKEND_EPOLL;
1345
1346 return flags;
1347} 2182}
1348 2183
2184#if EV_FEATURE_API
1349unsigned int 2185unsigned int
1350ev_backend (EV_P) 2186ev_iteration (EV_P) EV_THROW
1351{ 2187{
1352 return backend; 2188 return loop_count;
1353} 2189}
1354 2190
1355unsigned int 2191unsigned int
1356ev_loop_count (EV_P) 2192ev_depth (EV_P) EV_THROW
1357{ 2193{
1358 return loop_count; 2194 return loop_depth;
1359} 2195}
1360 2196
1361void 2197void
1362ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2198ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1363{ 2199{
1364 io_blocktime = interval; 2200 io_blocktime = interval;
1365} 2201}
1366 2202
1367void 2203void
1368ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2204ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1369{ 2205{
1370 timeout_blocktime = interval; 2206 timeout_blocktime = interval;
1371} 2207}
1372 2208
2209void
2210ev_set_userdata (EV_P_ void *data) EV_THROW
2211{
2212 userdata = data;
2213}
2214
2215void *
2216ev_userdata (EV_P) EV_THROW
2217{
2218 return userdata;
2219}
2220
2221void
2222ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2223{
2224 invoke_cb = invoke_pending_cb;
2225}
2226
2227void
2228ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2229{
2230 release_cb = release;
2231 acquire_cb = acquire;
2232}
2233#endif
2234
1373/* initialise a loop structure, must be zero-initialised */ 2235/* initialise a loop structure, must be zero-initialised */
1374static void noinline 2236static void noinline ecb_cold
1375loop_init (EV_P_ unsigned int flags) 2237loop_init (EV_P_ unsigned int flags) EV_THROW
1376{ 2238{
1377 if (!backend) 2239 if (!backend)
1378 { 2240 {
2241 origflags = flags;
2242
1379#if EV_USE_REALTIME 2243#if EV_USE_REALTIME
1380 if (!have_realtime) 2244 if (!have_realtime)
1381 { 2245 {
1382 struct timespec ts; 2246 struct timespec ts;
1383 2247
… …
1394 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2258 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1395 have_monotonic = 1; 2259 have_monotonic = 1;
1396 } 2260 }
1397#endif 2261#endif
1398 2262
1399 ev_rt_now = ev_time ();
1400 mn_now = get_clock ();
1401 now_floor = mn_now;
1402 rtmn_diff = ev_rt_now - mn_now;
1403
1404 io_blocktime = 0.;
1405 timeout_blocktime = 0.;
1406 backend = 0;
1407 backend_fd = -1;
1408 gotasync = 0;
1409#if EV_USE_INOTIFY
1410 fs_fd = -2;
1411#endif
1412
1413 /* pid check not overridable via env */ 2263 /* pid check not overridable via env */
1414#ifndef _WIN32 2264#ifndef _WIN32
1415 if (flags & EVFLAG_FORKCHECK) 2265 if (flags & EVFLAG_FORKCHECK)
1416 curpid = getpid (); 2266 curpid = getpid ();
1417#endif 2267#endif
… …
1419 if (!(flags & EVFLAG_NOENV) 2269 if (!(flags & EVFLAG_NOENV)
1420 && !enable_secure () 2270 && !enable_secure ()
1421 && getenv ("LIBEV_FLAGS")) 2271 && getenv ("LIBEV_FLAGS"))
1422 flags = atoi (getenv ("LIBEV_FLAGS")); 2272 flags = atoi (getenv ("LIBEV_FLAGS"));
1423 2273
1424 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))
1425 flags |= ev_recommended_backends (); 2300 flags |= ev_recommended_backends ();
1426 2301
2302#if EV_USE_IOCP
2303 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2304#endif
1427#if EV_USE_PORT 2305#if EV_USE_PORT
1428 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2306 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1429#endif 2307#endif
1430#if EV_USE_KQUEUE 2308#if EV_USE_KQUEUE
1431 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2309 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1440 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2318 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1441#endif 2319#endif
1442 2320
1443 ev_prepare_init (&pending_w, pendingcb); 2321 ev_prepare_init (&pending_w, pendingcb);
1444 2322
2323#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1445 ev_init (&pipe_w, pipecb); 2324 ev_init (&pipe_w, pipecb);
1446 ev_set_priority (&pipe_w, EV_MAXPRI); 2325 ev_set_priority (&pipe_w, EV_MAXPRI);
2326#endif
1447 } 2327 }
1448} 2328}
1449 2329
1450/* free up a loop structure */ 2330/* free up a loop structure */
1451static void noinline 2331void ecb_cold
1452loop_destroy (EV_P) 2332ev_loop_destroy (EV_P)
1453{ 2333{
1454 int i; 2334 int i;
1455 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
1456 if (ev_is_active (&pipe_w)) 2359 if (ev_is_active (&pipe_w))
1457 { 2360 {
1458 ev_ref (EV_A); /* signal watcher */ 2361 /*ev_ref (EV_A);*/
1459 ev_io_stop (EV_A_ &pipe_w); 2362 /*ev_io_stop (EV_A_ &pipe_w);*/
1460 2363
1461#if EV_USE_EVENTFD 2364#if EV_USE_EVENTFD
1462 if (evfd >= 0) 2365 if (evfd >= 0)
1463 close (evfd); 2366 close (evfd);
1464#endif 2367#endif
1465 2368
1466 if (evpipe [0] >= 0) 2369 if (evpipe [0] >= 0)
1467 { 2370 {
1468 close (evpipe [0]); 2371 EV_WIN32_CLOSE_FD (evpipe [0]);
1469 close (evpipe [1]); 2372 EV_WIN32_CLOSE_FD (evpipe [1]);
1470 } 2373 }
1471 } 2374 }
2375
2376#if EV_USE_SIGNALFD
2377 if (ev_is_active (&sigfd_w))
2378 close (sigfd);
2379#endif
1472 2380
1473#if EV_USE_INOTIFY 2381#if EV_USE_INOTIFY
1474 if (fs_fd >= 0) 2382 if (fs_fd >= 0)
1475 close (fs_fd); 2383 close (fs_fd);
1476#endif 2384#endif
1477 2385
1478 if (backend_fd >= 0) 2386 if (backend_fd >= 0)
1479 close (backend_fd); 2387 close (backend_fd);
1480 2388
2389#if EV_USE_IOCP
2390 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2391#endif
1481#if EV_USE_PORT 2392#if EV_USE_PORT
1482 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2393 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1483#endif 2394#endif
1484#if EV_USE_KQUEUE 2395#if EV_USE_KQUEUE
1485 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2396 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1500#if EV_IDLE_ENABLE 2411#if EV_IDLE_ENABLE
1501 array_free (idle, [i]); 2412 array_free (idle, [i]);
1502#endif 2413#endif
1503 } 2414 }
1504 2415
1505 ev_free (anfds); anfdmax = 0; 2416 ev_free (anfds); anfds = 0; anfdmax = 0;
1506 2417
1507 /* have to use the microsoft-never-gets-it-right macro */ 2418 /* have to use the microsoft-never-gets-it-right macro */
1508 array_free (rfeed, EMPTY); 2419 array_free (rfeed, EMPTY);
1509 array_free (fdchange, EMPTY); 2420 array_free (fdchange, EMPTY);
1510 array_free (timer, EMPTY); 2421 array_free (timer, EMPTY);
… …
1512 array_free (periodic, EMPTY); 2423 array_free (periodic, EMPTY);
1513#endif 2424#endif
1514#if EV_FORK_ENABLE 2425#if EV_FORK_ENABLE
1515 array_free (fork, EMPTY); 2426 array_free (fork, EMPTY);
1516#endif 2427#endif
2428#if EV_CLEANUP_ENABLE
2429 array_free (cleanup, EMPTY);
2430#endif
1517 array_free (prepare, EMPTY); 2431 array_free (prepare, EMPTY);
1518 array_free (check, EMPTY); 2432 array_free (check, EMPTY);
1519#if EV_ASYNC_ENABLE 2433#if EV_ASYNC_ENABLE
1520 array_free (async, EMPTY); 2434 array_free (async, EMPTY);
1521#endif 2435#endif
1522 2436
1523 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
1524} 2447}
1525 2448
1526#if EV_USE_INOTIFY 2449#if EV_USE_INOTIFY
1527inline_size void infy_fork (EV_P); 2450inline_size void infy_fork (EV_P);
1528#endif 2451#endif
… …
1543 infy_fork (EV_A); 2466 infy_fork (EV_A);
1544#endif 2467#endif
1545 2468
1546 if (ev_is_active (&pipe_w)) 2469 if (ev_is_active (&pipe_w))
1547 { 2470 {
1548 /* this "locks" the handlers against writing to the pipe */ 2471 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1549 /* while we modify the fd vars */
1550 gotsig = 1;
1551#if EV_ASYNC_ENABLE
1552 gotasync = 1;
1553#endif
1554 2472
1555 ev_ref (EV_A); 2473 ev_ref (EV_A);
1556 ev_io_stop (EV_A_ &pipe_w); 2474 ev_io_stop (EV_A_ &pipe_w);
1557 2475
1558#if EV_USE_EVENTFD 2476#if EV_USE_EVENTFD
… …
1560 close (evfd); 2478 close (evfd);
1561#endif 2479#endif
1562 2480
1563 if (evpipe [0] >= 0) 2481 if (evpipe [0] >= 0)
1564 { 2482 {
1565 close (evpipe [0]); 2483 EV_WIN32_CLOSE_FD (evpipe [0]);
1566 close (evpipe [1]); 2484 EV_WIN32_CLOSE_FD (evpipe [1]);
1567 } 2485 }
1568 2486
2487#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1569 evpipe_init (EV_A); 2488 evpipe_init (EV_A);
1570 /* now iterate over everything, in case we missed something */ 2489 /* now iterate over everything, in case we missed something */
1571 pipecb (EV_A_ &pipe_w, EV_READ); 2490 pipecb (EV_A_ &pipe_w, EV_READ);
2491#endif
1572 } 2492 }
1573 2493
1574 postfork = 0; 2494 postfork = 0;
1575} 2495}
1576 2496
1577#if EV_MULTIPLICITY 2497#if EV_MULTIPLICITY
1578 2498
1579struct ev_loop * 2499struct ev_loop * ecb_cold
1580ev_loop_new (unsigned int flags) 2500ev_loop_new (unsigned int flags) EV_THROW
1581{ 2501{
1582 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));
1583 2503
1584 memset (loop, 0, sizeof (struct ev_loop)); 2504 memset (EV_A, 0, sizeof (struct ev_loop));
1585
1586 loop_init (EV_A_ flags); 2505 loop_init (EV_A_ flags);
1587 2506
1588 if (ev_backend (EV_A)) 2507 if (ev_backend (EV_A))
1589 return loop; 2508 return EV_A;
1590 2509
2510 ev_free (EV_A);
1591 return 0; 2511 return 0;
1592} 2512}
1593 2513
1594void 2514#endif /* multiplicity */
1595ev_loop_destroy (EV_P)
1596{
1597 loop_destroy (EV_A);
1598 ev_free (loop);
1599}
1600
1601void
1602ev_loop_fork (EV_P)
1603{
1604 postfork = 1; /* must be in line with ev_default_fork */
1605}
1606 2515
1607#if EV_VERIFY 2516#if EV_VERIFY
1608static void noinline 2517static void noinline ecb_cold
1609verify_watcher (EV_P_ W w) 2518verify_watcher (EV_P_ W w)
1610{ 2519{
1611 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));
1612 2521
1613 if (w->pending) 2522 if (w->pending)
1614 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));
1615} 2524}
1616 2525
1617static void noinline 2526static void noinline ecb_cold
1618verify_heap (EV_P_ ANHE *heap, int N) 2527verify_heap (EV_P_ ANHE *heap, int N)
1619{ 2528{
1620 int i; 2529 int i;
1621 2530
1622 for (i = HEAP0; i < N + HEAP0; ++i) 2531 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1627 2536
1628 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2537 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1629 } 2538 }
1630} 2539}
1631 2540
1632static void noinline 2541static void noinline ecb_cold
1633array_verify (EV_P_ W *ws, int cnt) 2542array_verify (EV_P_ W *ws, int cnt)
1634{ 2543{
1635 while (cnt--) 2544 while (cnt--)
1636 { 2545 {
1637 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2546 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1638 verify_watcher (EV_A_ ws [cnt]); 2547 verify_watcher (EV_A_ ws [cnt]);
1639 } 2548 }
1640} 2549}
1641#endif 2550#endif
1642 2551
1643void 2552#if EV_FEATURE_API
1644ev_loop_verify (EV_P) 2553void ecb_cold
2554ev_verify (EV_P) EV_THROW
1645{ 2555{
1646#if EV_VERIFY 2556#if EV_VERIFY
1647 int i; 2557 int i;
1648 WL w; 2558 WL w;
1649 2559
… …
1683#if EV_FORK_ENABLE 2593#if EV_FORK_ENABLE
1684 assert (forkmax >= forkcnt); 2594 assert (forkmax >= forkcnt);
1685 array_verify (EV_A_ (W *)forks, forkcnt); 2595 array_verify (EV_A_ (W *)forks, forkcnt);
1686#endif 2596#endif
1687 2597
2598#if EV_CLEANUP_ENABLE
2599 assert (cleanupmax >= cleanupcnt);
2600 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2601#endif
2602
1688#if EV_ASYNC_ENABLE 2603#if EV_ASYNC_ENABLE
1689 assert (asyncmax >= asynccnt); 2604 assert (asyncmax >= asynccnt);
1690 array_verify (EV_A_ (W *)asyncs, asynccnt); 2605 array_verify (EV_A_ (W *)asyncs, asynccnt);
1691#endif 2606#endif
1692 2607
2608#if EV_PREPARE_ENABLE
1693 assert (preparemax >= preparecnt); 2609 assert (preparemax >= preparecnt);
1694 array_verify (EV_A_ (W *)prepares, preparecnt); 2610 array_verify (EV_A_ (W *)prepares, preparecnt);
2611#endif
1695 2612
2613#if EV_CHECK_ENABLE
1696 assert (checkmax >= checkcnt); 2614 assert (checkmax >= checkcnt);
1697 array_verify (EV_A_ (W *)checks, checkcnt); 2615 array_verify (EV_A_ (W *)checks, checkcnt);
2616#endif
1698 2617
1699# if 0 2618# if 0
2619#if EV_CHILD_ENABLE
1700 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)
1701 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2621 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2622#endif
1702# endif 2623# endif
1703#endif 2624#endif
1704} 2625}
1705 2626#endif
1706#endif /* multiplicity */
1707 2627
1708#if EV_MULTIPLICITY 2628#if EV_MULTIPLICITY
1709struct ev_loop * 2629struct ev_loop * ecb_cold
1710ev_default_loop_init (unsigned int flags)
1711#else 2630#else
1712int 2631int
2632#endif
1713ev_default_loop (unsigned int flags) 2633ev_default_loop (unsigned int flags) EV_THROW
1714#endif
1715{ 2634{
1716 if (!ev_default_loop_ptr) 2635 if (!ev_default_loop_ptr)
1717 { 2636 {
1718#if EV_MULTIPLICITY 2637#if EV_MULTIPLICITY
1719 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2638 EV_P = ev_default_loop_ptr = &default_loop_struct;
1720#else 2639#else
1721 ev_default_loop_ptr = 1; 2640 ev_default_loop_ptr = 1;
1722#endif 2641#endif
1723 2642
1724 loop_init (EV_A_ flags); 2643 loop_init (EV_A_ flags);
1725 2644
1726 if (ev_backend (EV_A)) 2645 if (ev_backend (EV_A))
1727 { 2646 {
1728#ifndef _WIN32 2647#if EV_CHILD_ENABLE
1729 ev_signal_init (&childev, childcb, SIGCHLD); 2648 ev_signal_init (&childev, childcb, SIGCHLD);
1730 ev_set_priority (&childev, EV_MAXPRI); 2649 ev_set_priority (&childev, EV_MAXPRI);
1731 ev_signal_start (EV_A_ &childev); 2650 ev_signal_start (EV_A_ &childev);
1732 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2651 ev_unref (EV_A); /* child watcher should not keep loop alive */
1733#endif 2652#endif
… …
1738 2657
1739 return ev_default_loop_ptr; 2658 return ev_default_loop_ptr;
1740} 2659}
1741 2660
1742void 2661void
1743ev_default_destroy (void) 2662ev_loop_fork (EV_P) EV_THROW
1744{ 2663{
1745#if EV_MULTIPLICITY
1746 struct ev_loop *loop = ev_default_loop_ptr;
1747#endif
1748
1749 ev_default_loop_ptr = 0;
1750
1751#ifndef _WIN32
1752 ev_ref (EV_A); /* child watcher */
1753 ev_signal_stop (EV_A_ &childev);
1754#endif
1755
1756 loop_destroy (EV_A);
1757}
1758
1759void
1760ev_default_fork (void)
1761{
1762#if EV_MULTIPLICITY
1763 struct ev_loop *loop = ev_default_loop_ptr;
1764#endif
1765
1766 postfork = 1; /* must be in line with ev_loop_fork */ 2664 postfork = 1; /* must be in line with ev_default_fork */
1767} 2665}
1768 2666
1769/*****************************************************************************/ 2667/*****************************************************************************/
1770 2668
1771void 2669void
1772ev_invoke (EV_P_ void *w, int revents) 2670ev_invoke (EV_P_ void *w, int revents)
1773{ 2671{
1774 EV_CB_INVOKE ((W)w, revents); 2672 EV_CB_INVOKE ((W)w, revents);
1775} 2673}
1776 2674
1777inline_speed void 2675unsigned int
1778call_pending (EV_P) 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;
2685}
2686
2687void noinline
2688ev_invoke_pending (EV_P)
1779{ 2689{
1780 int pri; 2690 int pri;
1781 2691
1782 for (pri = NUMPRI; pri--; ) 2692 for (pri = NUMPRI; pri--; )
1783 while (pendingcnt [pri]) 2693 while (pendingcnt [pri])
1784 { 2694 {
1785 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2695 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1786
1787 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1788 /* ^ this is no longer true, as pending_w could be here */
1789 2696
1790 p->w->pending = 0; 2697 p->w->pending = 0;
1791 EV_CB_INVOKE (p->w, p->events); 2698 EV_CB_INVOKE (p->w, p->events);
1792 EV_FREQUENT_CHECK; 2699 EV_FREQUENT_CHECK;
1793 } 2700 }
… …
1850 EV_FREQUENT_CHECK; 2757 EV_FREQUENT_CHECK;
1851 feed_reverse (EV_A_ (W)w); 2758 feed_reverse (EV_A_ (W)w);
1852 } 2759 }
1853 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2760 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1854 2761
1855 feed_reverse_done (EV_A_ EV_TIMEOUT); 2762 feed_reverse_done (EV_A_ EV_TIMER);
1856 } 2763 }
1857} 2764}
1858 2765
1859#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
1860/* make periodics pending */ 2792/* make periodics pending */
1861inline_size void 2793inline_size void
1862periodics_reify (EV_P) 2794periodics_reify (EV_P)
1863{ 2795{
1864 EV_FREQUENT_CHECK; 2796 EV_FREQUENT_CHECK;
… …
1883 ANHE_at_cache (periodics [HEAP0]); 2815 ANHE_at_cache (periodics [HEAP0]);
1884 downheap (periodics, periodiccnt, HEAP0); 2816 downheap (periodics, periodiccnt, HEAP0);
1885 } 2817 }
1886 else if (w->interval) 2818 else if (w->interval)
1887 { 2819 {
1888 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2820 periodic_recalc (EV_A_ w);
1889 /* if next trigger time is not sufficiently in the future, put it there */
1890 /* this might happen because of floating point inexactness */
1891 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1892 {
1893 ev_at (w) += w->interval;
1894
1895 /* if interval is unreasonably low we might still have a time in the past */
1896 /* so correct this. this will make the periodic very inexact, but the user */
1897 /* has effectively asked to get triggered more often than possible */
1898 if (ev_at (w) < ev_rt_now)
1899 ev_at (w) = ev_rt_now;
1900 }
1901
1902 ANHE_at_cache (periodics [HEAP0]); 2821 ANHE_at_cache (periodics [HEAP0]);
1903 downheap (periodics, periodiccnt, HEAP0); 2822 downheap (periodics, periodiccnt, HEAP0);
1904 } 2823 }
1905 else 2824 else
1906 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2825 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1913 feed_reverse_done (EV_A_ EV_PERIODIC); 2832 feed_reverse_done (EV_A_ EV_PERIODIC);
1914 } 2833 }
1915} 2834}
1916 2835
1917/* simply recalculate all periodics */ 2836/* simply recalculate all periodics */
1918/* 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? */
1919static void noinline 2838static void noinline ecb_cold
1920periodics_reschedule (EV_P) 2839periodics_reschedule (EV_P)
1921{ 2840{
1922 int i; 2841 int i;
1923 2842
1924 /* adjust periodics after time jump */ 2843 /* adjust periodics after time jump */
… …
1927 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2846 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1928 2847
1929 if (w->reschedule_cb) 2848 if (w->reschedule_cb)
1930 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2849 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1931 else if (w->interval) 2850 else if (w->interval)
1932 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2851 periodic_recalc (EV_A_ w);
1933 2852
1934 ANHE_at_cache (periodics [i]); 2853 ANHE_at_cache (periodics [i]);
1935 } 2854 }
1936 2855
1937 reheap (periodics, periodiccnt); 2856 reheap (periodics, periodiccnt);
1938} 2857}
1939#endif 2858#endif
1940 2859
1941/* adjust all timers by a given offset */ 2860/* adjust all timers by a given offset */
1942static void noinline 2861static void noinline ecb_cold
1943timers_reschedule (EV_P_ ev_tstamp adjust) 2862timers_reschedule (EV_P_ ev_tstamp adjust)
1944{ 2863{
1945 int i; 2864 int i;
1946 2865
1947 for (i = 0; i < timercnt; ++i) 2866 for (i = 0; i < timercnt; ++i)
… …
1951 ANHE_at_cache (*he); 2870 ANHE_at_cache (*he);
1952 } 2871 }
1953} 2872}
1954 2873
1955/* fetch new monotonic and realtime times from the kernel */ 2874/* fetch new monotonic and realtime times from the kernel */
1956/* also detetc if there was a timejump, and act accordingly */ 2875/* also detect if there was a timejump, and act accordingly */
1957inline_speed void 2876inline_speed void
1958time_update (EV_P_ ev_tstamp max_block) 2877time_update (EV_P_ ev_tstamp max_block)
1959{ 2878{
1960#if EV_USE_MONOTONIC 2879#if EV_USE_MONOTONIC
1961 if (expect_true (have_monotonic)) 2880 if (expect_true (have_monotonic))
… …
1984 * 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
1985 * in the unlikely event of having been preempted here. 2904 * in the unlikely event of having been preempted here.
1986 */ 2905 */
1987 for (i = 4; --i; ) 2906 for (i = 4; --i; )
1988 { 2907 {
2908 ev_tstamp diff;
1989 rtmn_diff = ev_rt_now - mn_now; 2909 rtmn_diff = ev_rt_now - mn_now;
1990 2910
2911 diff = odiff - rtmn_diff;
2912
1991 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2913 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
1992 return; /* all is well */ 2914 return; /* all is well */
1993 2915
1994 ev_rt_now = ev_time (); 2916 ev_rt_now = ev_time ();
1995 mn_now = get_clock (); 2917 mn_now = get_clock ();
1996 now_floor = mn_now; 2918 now_floor = mn_now;
… …
2018 2940
2019 mn_now = ev_rt_now; 2941 mn_now = ev_rt_now;
2020 } 2942 }
2021} 2943}
2022 2944
2023static int loop_done; 2945int
2024
2025void
2026ev_loop (EV_P_ int flags) 2946ev_run (EV_P_ int flags)
2027{ 2947{
2948#if EV_FEATURE_API
2949 ++loop_depth;
2950#endif
2951
2952 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2953
2028 loop_done = EVUNLOOP_CANCEL; 2954 loop_done = EVBREAK_CANCEL;
2029 2955
2030 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2956 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2031 2957
2032 do 2958 do
2033 { 2959 {
2034#if EV_VERIFY >= 2 2960#if EV_VERIFY >= 2
2035 ev_loop_verify (EV_A); 2961 ev_verify (EV_A);
2036#endif 2962#endif
2037 2963
2038#ifndef _WIN32 2964#ifndef _WIN32
2039 if (expect_false (curpid)) /* penalise the forking check even more */ 2965 if (expect_false (curpid)) /* penalise the forking check even more */
2040 if (expect_false (getpid () != curpid)) 2966 if (expect_false (getpid () != curpid))
… …
2048 /* we might have forked, so queue fork handlers */ 2974 /* we might have forked, so queue fork handlers */
2049 if (expect_false (postfork)) 2975 if (expect_false (postfork))
2050 if (forkcnt) 2976 if (forkcnt)
2051 { 2977 {
2052 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2978 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2053 call_pending (EV_A); 2979 EV_INVOKE_PENDING;
2054 } 2980 }
2055#endif 2981#endif
2056 2982
2983#if EV_PREPARE_ENABLE
2057 /* queue prepare watchers (and execute them) */ 2984 /* queue prepare watchers (and execute them) */
2058 if (expect_false (preparecnt)) 2985 if (expect_false (preparecnt))
2059 { 2986 {
2060 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2987 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2061 call_pending (EV_A); 2988 EV_INVOKE_PENDING;
2062 } 2989 }
2990#endif
2991
2992 if (expect_false (loop_done))
2993 break;
2063 2994
2064 /* we might have forked, so reify kernel state if necessary */ 2995 /* we might have forked, so reify kernel state if necessary */
2065 if (expect_false (postfork)) 2996 if (expect_false (postfork))
2066 loop_fork (EV_A); 2997 loop_fork (EV_A);
2067 2998
… …
2071 /* calculate blocking time */ 3002 /* calculate blocking time */
2072 { 3003 {
2073 ev_tstamp waittime = 0.; 3004 ev_tstamp waittime = 0.;
2074 ev_tstamp sleeptime = 0.; 3005 ev_tstamp sleeptime = 0.;
2075 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
2076 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3018 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2077 { 3019 {
2078 /* update time to cancel out callback processing overhead */
2079 time_update (EV_A_ 1e100);
2080
2081 waittime = MAX_BLOCKTIME; 3020 waittime = MAX_BLOCKTIME;
2082 3021
2083 if (timercnt) 3022 if (timercnt)
2084 { 3023 {
2085 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3024 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2086 if (waittime > to) waittime = to; 3025 if (waittime > to) waittime = to;
2087 } 3026 }
2088 3027
2089#if EV_PERIODIC_ENABLE 3028#if EV_PERIODIC_ENABLE
2090 if (periodiccnt) 3029 if (periodiccnt)
2091 { 3030 {
2092 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3031 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2093 if (waittime > to) waittime = to; 3032 if (waittime > to) waittime = to;
2094 } 3033 }
2095#endif 3034#endif
2096 3035
3036 /* don't let timeouts decrease the waittime below timeout_blocktime */
2097 if (expect_false (waittime < timeout_blocktime)) 3037 if (expect_false (waittime < timeout_blocktime))
2098 waittime = timeout_blocktime; 3038 waittime = timeout_blocktime;
2099 3039
2100 sleeptime = waittime - backend_fudge; 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;
2101 3044
3045 /* extra check because io_blocktime is commonly 0 */
2102 if (expect_true (sleeptime > io_blocktime)) 3046 if (expect_false (io_blocktime))
2103 sleeptime = io_blocktime;
2104
2105 if (sleeptime)
2106 { 3047 {
3048 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3049
3050 if (sleeptime > waittime - backend_mintime)
3051 sleeptime = waittime - backend_mintime;
3052
3053 if (expect_true (sleeptime > 0.))
3054 {
2107 ev_sleep (sleeptime); 3055 ev_sleep (sleeptime);
2108 waittime -= sleeptime; 3056 waittime -= sleeptime;
3057 }
2109 } 3058 }
2110 } 3059 }
2111 3060
3061#if EV_FEATURE_API
2112 ++loop_count; 3062 ++loop_count;
3063#endif
3064 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2113 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
2114 3076
2115 /* update ev_rt_now, do magic */ 3077 /* update ev_rt_now, do magic */
2116 time_update (EV_A_ waittime + sleeptime); 3078 time_update (EV_A_ waittime + sleeptime);
2117 } 3079 }
2118 3080
… …
2125#if EV_IDLE_ENABLE 3087#if EV_IDLE_ENABLE
2126 /* queue idle watchers unless other events are pending */ 3088 /* queue idle watchers unless other events are pending */
2127 idle_reify (EV_A); 3089 idle_reify (EV_A);
2128#endif 3090#endif
2129 3091
3092#if EV_CHECK_ENABLE
2130 /* queue check watchers, to be executed first */ 3093 /* queue check watchers, to be executed first */
2131 if (expect_false (checkcnt)) 3094 if (expect_false (checkcnt))
2132 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3095 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3096#endif
2133 3097
2134 call_pending (EV_A); 3098 EV_INVOKE_PENDING;
2135 } 3099 }
2136 while (expect_true ( 3100 while (expect_true (
2137 activecnt 3101 activecnt
2138 && !loop_done 3102 && !loop_done
2139 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3103 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2140 )); 3104 ));
2141 3105
2142 if (loop_done == EVUNLOOP_ONE) 3106 if (loop_done == EVBREAK_ONE)
2143 loop_done = EVUNLOOP_CANCEL; 3107 loop_done = EVBREAK_CANCEL;
3108
3109#if EV_FEATURE_API
3110 --loop_depth;
3111#endif
3112
3113 return activecnt;
2144} 3114}
2145 3115
2146void 3116void
2147ev_unloop (EV_P_ int how) 3117ev_break (EV_P_ int how) EV_THROW
2148{ 3118{
2149 loop_done = how; 3119 loop_done = how;
2150} 3120}
2151 3121
2152void 3122void
2153ev_ref (EV_P) 3123ev_ref (EV_P) EV_THROW
2154{ 3124{
2155 ++activecnt; 3125 ++activecnt;
2156} 3126}
2157 3127
2158void 3128void
2159ev_unref (EV_P) 3129ev_unref (EV_P) EV_THROW
2160{ 3130{
2161 --activecnt; 3131 --activecnt;
2162} 3132}
2163 3133
2164void 3134void
2165ev_now_update (EV_P) 3135ev_now_update (EV_P) EV_THROW
2166{ 3136{
2167 time_update (EV_A_ 1e100); 3137 time_update (EV_A_ 1e100);
2168} 3138}
2169 3139
2170void 3140void
2171ev_suspend (EV_P) 3141ev_suspend (EV_P) EV_THROW
2172{ 3142{
2173 ev_now_update (EV_A); 3143 ev_now_update (EV_A);
2174} 3144}
2175 3145
2176void 3146void
2177ev_resume (EV_P) 3147ev_resume (EV_P) EV_THROW
2178{ 3148{
2179 ev_tstamp mn_prev = mn_now; 3149 ev_tstamp mn_prev = mn_now;
2180 3150
2181 ev_now_update (EV_A); 3151 ev_now_update (EV_A);
2182 timers_reschedule (EV_A_ mn_now - mn_prev); 3152 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2199inline_size void 3169inline_size void
2200wlist_del (WL *head, WL elem) 3170wlist_del (WL *head, WL elem)
2201{ 3171{
2202 while (*head) 3172 while (*head)
2203 { 3173 {
2204 if (*head == elem) 3174 if (expect_true (*head == elem))
2205 { 3175 {
2206 *head = elem->next; 3176 *head = elem->next;
2207 return; 3177 break;
2208 } 3178 }
2209 3179
2210 head = &(*head)->next; 3180 head = &(*head)->next;
2211 } 3181 }
2212} 3182}
… …
2221 w->pending = 0; 3191 w->pending = 0;
2222 } 3192 }
2223} 3193}
2224 3194
2225int 3195int
2226ev_clear_pending (EV_P_ void *w) 3196ev_clear_pending (EV_P_ void *w) EV_THROW
2227{ 3197{
2228 W w_ = (W)w; 3198 W w_ = (W)w;
2229 int pending = w_->pending; 3199 int pending = w_->pending;
2230 3200
2231 if (expect_true (pending)) 3201 if (expect_true (pending))
… …
2240} 3210}
2241 3211
2242inline_size void 3212inline_size void
2243pri_adjust (EV_P_ W w) 3213pri_adjust (EV_P_ W w)
2244{ 3214{
2245 int pri = w->priority; 3215 int pri = ev_priority (w);
2246 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 3216 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2247 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 3217 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2248 w->priority = pri; 3218 ev_set_priority (w, pri);
2249} 3219}
2250 3220
2251inline_speed void 3221inline_speed void
2252ev_start (EV_P_ W w, int active) 3222ev_start (EV_P_ W w, int active)
2253{ 3223{
… …
2264} 3234}
2265 3235
2266/*****************************************************************************/ 3236/*****************************************************************************/
2267 3237
2268void noinline 3238void noinline
2269ev_io_start (EV_P_ ev_io *w) 3239ev_io_start (EV_P_ ev_io *w) EV_THROW
2270{ 3240{
2271 int fd = w->fd; 3241 int fd = w->fd;
2272 3242
2273 if (expect_false (ev_is_active (w))) 3243 if (expect_false (ev_is_active (w)))
2274 return; 3244 return;
2275 3245
2276 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3246 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2277 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3247 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2278 3248
2279 EV_FREQUENT_CHECK; 3249 EV_FREQUENT_CHECK;
2280 3250
2281 ev_start (EV_A_ (W)w, 1); 3251 ev_start (EV_A_ (W)w, 1);
2282 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3252 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2283 wlist_add (&anfds[fd].head, (WL)w); 3253 wlist_add (&anfds[fd].head, (WL)w);
2284 3254
2285 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 3255 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2286 w->events &= ~EV__IOFDSET; 3256 w->events &= ~EV__IOFDSET;
2287 3257
2288 EV_FREQUENT_CHECK; 3258 EV_FREQUENT_CHECK;
2289} 3259}
2290 3260
2291void noinline 3261void noinline
2292ev_io_stop (EV_P_ ev_io *w) 3262ev_io_stop (EV_P_ ev_io *w) EV_THROW
2293{ 3263{
2294 clear_pending (EV_A_ (W)w); 3264 clear_pending (EV_A_ (W)w);
2295 if (expect_false (!ev_is_active (w))) 3265 if (expect_false (!ev_is_active (w)))
2296 return; 3266 return;
2297 3267
… …
2300 EV_FREQUENT_CHECK; 3270 EV_FREQUENT_CHECK;
2301 3271
2302 wlist_del (&anfds[w->fd].head, (WL)w); 3272 wlist_del (&anfds[w->fd].head, (WL)w);
2303 ev_stop (EV_A_ (W)w); 3273 ev_stop (EV_A_ (W)w);
2304 3274
2305 fd_change (EV_A_ w->fd, 1); 3275 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2306 3276
2307 EV_FREQUENT_CHECK; 3277 EV_FREQUENT_CHECK;
2308} 3278}
2309 3279
2310void noinline 3280void noinline
2311ev_timer_start (EV_P_ ev_timer *w) 3281ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2312{ 3282{
2313 if (expect_false (ev_is_active (w))) 3283 if (expect_false (ev_is_active (w)))
2314 return; 3284 return;
2315 3285
2316 ev_at (w) += mn_now; 3286 ev_at (w) += mn_now;
… …
2330 3300
2331 /*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));*/
2332} 3302}
2333 3303
2334void noinline 3304void noinline
2335ev_timer_stop (EV_P_ ev_timer *w) 3305ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2336{ 3306{
2337 clear_pending (EV_A_ (W)w); 3307 clear_pending (EV_A_ (W)w);
2338 if (expect_false (!ev_is_active (w))) 3308 if (expect_false (!ev_is_active (w)))
2339 return; 3309 return;
2340 3310
… …
2352 timers [active] = timers [timercnt + HEAP0]; 3322 timers [active] = timers [timercnt + HEAP0];
2353 adjustheap (timers, timercnt, active); 3323 adjustheap (timers, timercnt, active);
2354 } 3324 }
2355 } 3325 }
2356 3326
2357 EV_FREQUENT_CHECK;
2358
2359 ev_at (w) -= mn_now; 3327 ev_at (w) -= mn_now;
2360 3328
2361 ev_stop (EV_A_ (W)w); 3329 ev_stop (EV_A_ (W)w);
3330
3331 EV_FREQUENT_CHECK;
2362} 3332}
2363 3333
2364void noinline 3334void noinline
2365ev_timer_again (EV_P_ ev_timer *w) 3335ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2366{ 3336{
2367 EV_FREQUENT_CHECK; 3337 EV_FREQUENT_CHECK;
3338
3339 clear_pending (EV_A_ (W)w);
2368 3340
2369 if (ev_is_active (w)) 3341 if (ev_is_active (w))
2370 { 3342 {
2371 if (w->repeat) 3343 if (w->repeat)
2372 { 3344 {
… …
2384 } 3356 }
2385 3357
2386 EV_FREQUENT_CHECK; 3358 EV_FREQUENT_CHECK;
2387} 3359}
2388 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
2389#if EV_PERIODIC_ENABLE 3367#if EV_PERIODIC_ENABLE
2390void noinline 3368void noinline
2391ev_periodic_start (EV_P_ ev_periodic *w) 3369ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2392{ 3370{
2393 if (expect_false (ev_is_active (w))) 3371 if (expect_false (ev_is_active (w)))
2394 return; 3372 return;
2395 3373
2396 if (w->reschedule_cb) 3374 if (w->reschedule_cb)
2397 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3375 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2398 else if (w->interval) 3376 else if (w->interval)
2399 { 3377 {
2400 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.));
2401 /* this formula differs from the one in periodic_reify because we do not always round up */ 3379 periodic_recalc (EV_A_ w);
2402 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2403 } 3380 }
2404 else 3381 else
2405 ev_at (w) = w->offset; 3382 ev_at (w) = w->offset;
2406 3383
2407 EV_FREQUENT_CHECK; 3384 EV_FREQUENT_CHECK;
… …
2417 3394
2418 /*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));*/
2419} 3396}
2420 3397
2421void noinline 3398void noinline
2422ev_periodic_stop (EV_P_ ev_periodic *w) 3399ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2423{ 3400{
2424 clear_pending (EV_A_ (W)w); 3401 clear_pending (EV_A_ (W)w);
2425 if (expect_false (!ev_is_active (w))) 3402 if (expect_false (!ev_is_active (w)))
2426 return; 3403 return;
2427 3404
… …
2439 periodics [active] = periodics [periodiccnt + HEAP0]; 3416 periodics [active] = periodics [periodiccnt + HEAP0];
2440 adjustheap (periodics, periodiccnt, active); 3417 adjustheap (periodics, periodiccnt, active);
2441 } 3418 }
2442 } 3419 }
2443 3420
2444 EV_FREQUENT_CHECK;
2445
2446 ev_stop (EV_A_ (W)w); 3421 ev_stop (EV_A_ (W)w);
3422
3423 EV_FREQUENT_CHECK;
2447} 3424}
2448 3425
2449void noinline 3426void noinline
2450ev_periodic_again (EV_P_ ev_periodic *w) 3427ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2451{ 3428{
2452 /* TODO: use adjustheap and recalculation */ 3429 /* TODO: use adjustheap and recalculation */
2453 ev_periodic_stop (EV_A_ w); 3430 ev_periodic_stop (EV_A_ w);
2454 ev_periodic_start (EV_A_ w); 3431 ev_periodic_start (EV_A_ w);
2455} 3432}
… …
2457 3434
2458#ifndef SA_RESTART 3435#ifndef SA_RESTART
2459# define SA_RESTART 0 3436# define SA_RESTART 0
2460#endif 3437#endif
2461 3438
3439#if EV_SIGNAL_ENABLE
3440
2462void noinline 3441void noinline
2463ev_signal_start (EV_P_ ev_signal *w) 3442ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2464{ 3443{
2465#if EV_MULTIPLICITY
2466 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2467#endif
2468 if (expect_false (ev_is_active (w))) 3444 if (expect_false (ev_is_active (w)))
2469 return; 3445 return;
2470 3446
2471 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));
2472 3448
2473 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));
2474 3452
2475 EV_FREQUENT_CHECK; 3453 signals [w->signum - 1].loop = EV_A;
3454#endif
2476 3455
3456 EV_FREQUENT_CHECK;
3457
3458#if EV_USE_SIGNALFD
3459 if (sigfd == -2)
2477 { 3460 {
2478#ifndef _WIN32 3461 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2479 sigset_t full, prev; 3462 if (sigfd < 0 && errno == EINVAL)
2480 sigfillset (&full); 3463 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2481 sigprocmask (SIG_SETMASK, &full, &prev);
2482#endif
2483 3464
2484 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 */
2485 3468
2486#ifndef _WIN32 3469 sigemptyset (&sigfd_set);
2487 sigprocmask (SIG_SETMASK, &prev, 0); 3470
2488#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 }
2489 } 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
2490 3487
2491 ev_start (EV_A_ (W)w, 1); 3488 ev_start (EV_A_ (W)w, 1);
2492 wlist_add (&signals [w->signum - 1].head, (WL)w); 3489 wlist_add (&signals [w->signum - 1].head, (WL)w);
2493 3490
2494 if (!((WL)w)->next) 3491 if (!((WL)w)->next)
3492# if EV_USE_SIGNALFD
3493 if (sigfd < 0) /*TODO*/
3494# endif
2495 { 3495 {
2496#if _WIN32 3496# ifdef _WIN32
3497 evpipe_init (EV_A);
3498
2497 signal (w->signum, ev_sighandler); 3499 signal (w->signum, ev_sighandler);
2498#else 3500# else
2499 struct sigaction sa; 3501 struct sigaction sa;
3502
3503 evpipe_init (EV_A);
3504
2500 sa.sa_handler = ev_sighandler; 3505 sa.sa_handler = ev_sighandler;
2501 sigfillset (&sa.sa_mask); 3506 sigfillset (&sa.sa_mask);
2502 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 */
2503 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 }
2504#endif 3516#endif
2505 } 3517 }
2506 3518
2507 EV_FREQUENT_CHECK; 3519 EV_FREQUENT_CHECK;
2508} 3520}
2509 3521
2510void noinline 3522void noinline
2511ev_signal_stop (EV_P_ ev_signal *w) 3523ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2512{ 3524{
2513 clear_pending (EV_A_ (W)w); 3525 clear_pending (EV_A_ (W)w);
2514 if (expect_false (!ev_is_active (w))) 3526 if (expect_false (!ev_is_active (w)))
2515 return; 3527 return;
2516 3528
… …
2518 3530
2519 wlist_del (&signals [w->signum - 1].head, (WL)w); 3531 wlist_del (&signals [w->signum - 1].head, (WL)w);
2520 ev_stop (EV_A_ (W)w); 3532 ev_stop (EV_A_ (W)w);
2521 3533
2522 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
2523 signal (w->signum, SIG_DFL); 3553 signal (w->signum, SIG_DFL);
3554 }
2524 3555
2525 EV_FREQUENT_CHECK; 3556 EV_FREQUENT_CHECK;
2526} 3557}
3558
3559#endif
3560
3561#if EV_CHILD_ENABLE
2527 3562
2528void 3563void
2529ev_child_start (EV_P_ ev_child *w) 3564ev_child_start (EV_P_ ev_child *w) EV_THROW
2530{ 3565{
2531#if EV_MULTIPLICITY 3566#if EV_MULTIPLICITY
2532 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));
2533#endif 3568#endif
2534 if (expect_false (ev_is_active (w))) 3569 if (expect_false (ev_is_active (w)))
2535 return; 3570 return;
2536 3571
2537 EV_FREQUENT_CHECK; 3572 EV_FREQUENT_CHECK;
2538 3573
2539 ev_start (EV_A_ (W)w, 1); 3574 ev_start (EV_A_ (W)w, 1);
2540 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3575 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2541 3576
2542 EV_FREQUENT_CHECK; 3577 EV_FREQUENT_CHECK;
2543} 3578}
2544 3579
2545void 3580void
2546ev_child_stop (EV_P_ ev_child *w) 3581ev_child_stop (EV_P_ ev_child *w) EV_THROW
2547{ 3582{
2548 clear_pending (EV_A_ (W)w); 3583 clear_pending (EV_A_ (W)w);
2549 if (expect_false (!ev_is_active (w))) 3584 if (expect_false (!ev_is_active (w)))
2550 return; 3585 return;
2551 3586
2552 EV_FREQUENT_CHECK; 3587 EV_FREQUENT_CHECK;
2553 3588
2554 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3589 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2555 ev_stop (EV_A_ (W)w); 3590 ev_stop (EV_A_ (W)w);
2556 3591
2557 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
2558} 3593}
3594
3595#endif
2559 3596
2560#if EV_STAT_ENABLE 3597#if EV_STAT_ENABLE
2561 3598
2562# ifdef _WIN32 3599# ifdef _WIN32
2563# undef lstat 3600# undef lstat
… …
2569#define MIN_STAT_INTERVAL 0.1074891 3606#define MIN_STAT_INTERVAL 0.1074891
2570 3607
2571static 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);
2572 3609
2573#if EV_USE_INOTIFY 3610#if EV_USE_INOTIFY
2574# 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)
2575 3614
2576static void noinline 3615static void noinline
2577infy_add (EV_P_ ev_stat *w) 3616infy_add (EV_P_ ev_stat *w)
2578{ 3617{
2579 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 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);
2580 3619
2581 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 */
2582 { 3640 }
3641 else
3642 {
3643 /* can't use inotify, continue to stat */
2583 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3644 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2584 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2585 3645
2586 /* monitor some parent directory for speedup hints */ 3646 /* if path is not there, monitor some parent directory for speedup hints */
2587 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3647 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2588 /* but an efficiency issue only */ 3648 /* but an efficiency issue only */
2589 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3649 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2590 { 3650 {
2591 char path [4096]; 3651 char path [4096];
… …
2601 if (!pend || pend == path) 3661 if (!pend || pend == path)
2602 break; 3662 break;
2603 3663
2604 *pend = 0; 3664 *pend = 0;
2605 w->wd = inotify_add_watch (fs_fd, path, mask); 3665 w->wd = inotify_add_watch (fs_fd, path, mask);
2606 } 3666 }
2607 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3667 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2608 } 3668 }
2609 } 3669 }
2610 3670
2611 if (w->wd >= 0) 3671 if (w->wd >= 0)
2612 {
2613 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);
2614 3673
2615 /* now local changes will be tracked by inotify, but remote changes won't */ 3674 /* now re-arm timer, if required */
2616 /* unless the filesystem it known to be local, we therefore still poll */ 3675 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2617 /* also do poll on <2.6.25, but with normal frequency */
2618 struct statfs sfs;
2619
2620 if (fs_2625 && !statfs (w->path, &sfs))
2621 if (sfs.f_type == 0x1373 /* devfs */
2622 || sfs.f_type == 0xEF53 /* ext2/3 */
2623 || sfs.f_type == 0x3153464a /* jfs */
2624 || sfs.f_type == 0x52654973 /* reiser3 */
2625 || sfs.f_type == 0x01021994 /* tempfs */
2626 || sfs.f_type == 0x58465342 /* xfs */)
2627 return;
2628
2629 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2630 ev_timer_again (EV_A_ &w->timer); 3676 ev_timer_again (EV_A_ &w->timer);
2631 } 3677 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2632} 3678}
2633 3679
2634static void noinline 3680static void noinline
2635infy_del (EV_P_ ev_stat *w) 3681infy_del (EV_P_ ev_stat *w)
2636{ 3682{
… …
2639 3685
2640 if (wd < 0) 3686 if (wd < 0)
2641 return; 3687 return;
2642 3688
2643 w->wd = -2; 3689 w->wd = -2;
2644 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3690 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2645 wlist_del (&fs_hash [slot].head, (WL)w); 3691 wlist_del (&fs_hash [slot].head, (WL)w);
2646 3692
2647 /* remove this watcher, if others are watching it, they will rearm */ 3693 /* remove this watcher, if others are watching it, they will rearm */
2648 inotify_rm_watch (fs_fd, wd); 3694 inotify_rm_watch (fs_fd, wd);
2649} 3695}
… …
2651static void noinline 3697static void noinline
2652infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3698infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2653{ 3699{
2654 if (slot < 0) 3700 if (slot < 0)
2655 /* overflow, need to check for all hash slots */ 3701 /* overflow, need to check for all hash slots */
2656 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3702 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2657 infy_wd (EV_A_ slot, wd, ev); 3703 infy_wd (EV_A_ slot, wd, ev);
2658 else 3704 else
2659 { 3705 {
2660 WL w_; 3706 WL w_;
2661 3707
2662 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3708 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2663 { 3709 {
2664 ev_stat *w = (ev_stat *)w_; 3710 ev_stat *w = (ev_stat *)w_;
2665 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 */
2666 3712
2667 if (w->wd == wd || wd == -1) 3713 if (w->wd == wd || wd == -1)
2668 { 3714 {
2669 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3715 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2670 { 3716 {
2671 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);
2672 w->wd = -1; 3718 w->wd = -1;
2673 infy_add (EV_A_ w); /* re-add, no matter what */ 3719 infy_add (EV_A_ w); /* re-add, no matter what */
2674 } 3720 }
2675 3721
2676 stat_timer_cb (EV_A_ &w->timer, 0); 3722 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2681 3727
2682static void 3728static void
2683infy_cb (EV_P_ ev_io *w, int revents) 3729infy_cb (EV_P_ ev_io *w, int revents)
2684{ 3730{
2685 char buf [EV_INOTIFY_BUFSIZE]; 3731 char buf [EV_INOTIFY_BUFSIZE];
2686 struct inotify_event *ev = (struct inotify_event *)buf;
2687 int ofs; 3732 int ofs;
2688 int len = read (fs_fd, buf, sizeof (buf)); 3733 int len = read (fs_fd, buf, sizeof (buf));
2689 3734
2690 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);
2691 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 }
2692} 3741}
2693 3742
2694inline_size void 3743inline_size void ecb_cold
2695check_2625 (EV_P) 3744ev_check_2625 (EV_P)
2696{ 3745{
2697 /* kernels < 2.6.25 are borked 3746 /* kernels < 2.6.25 are borked
2698 * 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
2699 */ 3748 */
2700 struct utsname buf; 3749 if (ev_linux_version () < 0x020619)
2701 int major, minor, micro;
2702
2703 if (uname (&buf))
2704 return; 3750 return;
2705 3751
2706 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2707 return;
2708
2709 if (major < 2
2710 || (major == 2 && minor < 6)
2711 || (major == 2 && minor == 6 && micro < 25))
2712 return;
2713
2714 fs_2625 = 1; 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 ();
2715} 3764}
2716 3765
2717inline_size void 3766inline_size void
2718infy_init (EV_P) 3767infy_init (EV_P)
2719{ 3768{
2720 if (fs_fd != -2) 3769 if (fs_fd != -2)
2721 return; 3770 return;
2722 3771
2723 fs_fd = -1; 3772 fs_fd = -1;
2724 3773
2725 check_2625 (EV_A); 3774 ev_check_2625 (EV_A);
2726 3775
2727 fs_fd = inotify_init (); 3776 fs_fd = infy_newfd ();
2728 3777
2729 if (fs_fd >= 0) 3778 if (fs_fd >= 0)
2730 { 3779 {
3780 fd_intern (fs_fd);
2731 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3781 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2732 ev_set_priority (&fs_w, EV_MAXPRI); 3782 ev_set_priority (&fs_w, EV_MAXPRI);
2733 ev_io_start (EV_A_ &fs_w); 3783 ev_io_start (EV_A_ &fs_w);
3784 ev_unref (EV_A);
2734 } 3785 }
2735} 3786}
2736 3787
2737inline_size void 3788inline_size void
2738infy_fork (EV_P) 3789infy_fork (EV_P)
… …
2740 int slot; 3791 int slot;
2741 3792
2742 if (fs_fd < 0) 3793 if (fs_fd < 0)
2743 return; 3794 return;
2744 3795
3796 ev_ref (EV_A);
3797 ev_io_stop (EV_A_ &fs_w);
2745 close (fs_fd); 3798 close (fs_fd);
2746 fs_fd = inotify_init (); 3799 fs_fd = infy_newfd ();
2747 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
2748 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3809 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2749 { 3810 {
2750 WL w_ = fs_hash [slot].head; 3811 WL w_ = fs_hash [slot].head;
2751 fs_hash [slot].head = 0; 3812 fs_hash [slot].head = 0;
2752 3813
2753 while (w_) 3814 while (w_)
… …
2758 w->wd = -1; 3819 w->wd = -1;
2759 3820
2760 if (fs_fd >= 0) 3821 if (fs_fd >= 0)
2761 infy_add (EV_A_ w); /* re-add, no matter what */ 3822 infy_add (EV_A_ w); /* re-add, no matter what */
2762 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);
2763 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 }
2764 } 3830 }
2765 } 3831 }
2766} 3832}
2767 3833
2768#endif 3834#endif
… …
2772#else 3838#else
2773# define EV_LSTAT(p,b) lstat (p, b) 3839# define EV_LSTAT(p,b) lstat (p, b)
2774#endif 3840#endif
2775 3841
2776void 3842void
2777ev_stat_stat (EV_P_ ev_stat *w) 3843ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2778{ 3844{
2779 if (lstat (w->path, &w->attr) < 0) 3845 if (lstat (w->path, &w->attr) < 0)
2780 w->attr.st_nlink = 0; 3846 w->attr.st_nlink = 0;
2781 else if (!w->attr.st_nlink) 3847 else if (!w->attr.st_nlink)
2782 w->attr.st_nlink = 1; 3848 w->attr.st_nlink = 1;
… …
2785static void noinline 3851static void noinline
2786stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3852stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2787{ 3853{
2788 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3854 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2789 3855
2790 /* we copy this here each the time so that */ 3856 ev_statdata prev = w->attr;
2791 /* prev has the old value when the callback gets invoked */
2792 w->prev = w->attr;
2793 ev_stat_stat (EV_A_ w); 3857 ev_stat_stat (EV_A_ w);
2794 3858
2795 /* 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 */
2796 if ( 3860 if (
2797 w->prev.st_dev != w->attr.st_dev 3861 prev.st_dev != w->attr.st_dev
2798 || w->prev.st_ino != w->attr.st_ino 3862 || prev.st_ino != w->attr.st_ino
2799 || w->prev.st_mode != w->attr.st_mode 3863 || prev.st_mode != w->attr.st_mode
2800 || w->prev.st_nlink != w->attr.st_nlink 3864 || prev.st_nlink != w->attr.st_nlink
2801 || w->prev.st_uid != w->attr.st_uid 3865 || prev.st_uid != w->attr.st_uid
2802 || w->prev.st_gid != w->attr.st_gid 3866 || prev.st_gid != w->attr.st_gid
2803 || w->prev.st_rdev != w->attr.st_rdev 3867 || prev.st_rdev != w->attr.st_rdev
2804 || w->prev.st_size != w->attr.st_size 3868 || prev.st_size != w->attr.st_size
2805 || w->prev.st_atime != w->attr.st_atime 3869 || prev.st_atime != w->attr.st_atime
2806 || w->prev.st_mtime != w->attr.st_mtime 3870 || prev.st_mtime != w->attr.st_mtime
2807 || w->prev.st_ctime != w->attr.st_ctime 3871 || prev.st_ctime != w->attr.st_ctime
2808 ) { 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
2809 #if EV_USE_INOTIFY 3878 #if EV_USE_INOTIFY
2810 if (fs_fd >= 0) 3879 if (fs_fd >= 0)
2811 { 3880 {
2812 infy_del (EV_A_ w); 3881 infy_del (EV_A_ w);
2813 infy_add (EV_A_ w); 3882 infy_add (EV_A_ w);
… …
2818 ev_feed_event (EV_A_ w, EV_STAT); 3887 ev_feed_event (EV_A_ w, EV_STAT);
2819 } 3888 }
2820} 3889}
2821 3890
2822void 3891void
2823ev_stat_start (EV_P_ ev_stat *w) 3892ev_stat_start (EV_P_ ev_stat *w) EV_THROW
2824{ 3893{
2825 if (expect_false (ev_is_active (w))) 3894 if (expect_false (ev_is_active (w)))
2826 return; 3895 return;
2827 3896
2828 ev_stat_stat (EV_A_ w); 3897 ev_stat_stat (EV_A_ w);
… …
2838 3907
2839 if (fs_fd >= 0) 3908 if (fs_fd >= 0)
2840 infy_add (EV_A_ w); 3909 infy_add (EV_A_ w);
2841 else 3910 else
2842#endif 3911#endif
3912 {
2843 ev_timer_again (EV_A_ &w->timer); 3913 ev_timer_again (EV_A_ &w->timer);
3914 ev_unref (EV_A);
3915 }
2844 3916
2845 ev_start (EV_A_ (W)w, 1); 3917 ev_start (EV_A_ (W)w, 1);
2846 3918
2847 EV_FREQUENT_CHECK; 3919 EV_FREQUENT_CHECK;
2848} 3920}
2849 3921
2850void 3922void
2851ev_stat_stop (EV_P_ ev_stat *w) 3923ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
2852{ 3924{
2853 clear_pending (EV_A_ (W)w); 3925 clear_pending (EV_A_ (W)w);
2854 if (expect_false (!ev_is_active (w))) 3926 if (expect_false (!ev_is_active (w)))
2855 return; 3927 return;
2856 3928
2857 EV_FREQUENT_CHECK; 3929 EV_FREQUENT_CHECK;
2858 3930
2859#if EV_USE_INOTIFY 3931#if EV_USE_INOTIFY
2860 infy_del (EV_A_ w); 3932 infy_del (EV_A_ w);
2861#endif 3933#endif
3934
3935 if (ev_is_active (&w->timer))
3936 {
3937 ev_ref (EV_A);
2862 ev_timer_stop (EV_A_ &w->timer); 3938 ev_timer_stop (EV_A_ &w->timer);
3939 }
2863 3940
2864 ev_stop (EV_A_ (W)w); 3941 ev_stop (EV_A_ (W)w);
2865 3942
2866 EV_FREQUENT_CHECK; 3943 EV_FREQUENT_CHECK;
2867} 3944}
2868#endif 3945#endif
2869 3946
2870#if EV_IDLE_ENABLE 3947#if EV_IDLE_ENABLE
2871void 3948void
2872ev_idle_start (EV_P_ ev_idle *w) 3949ev_idle_start (EV_P_ ev_idle *w) EV_THROW
2873{ 3950{
2874 if (expect_false (ev_is_active (w))) 3951 if (expect_false (ev_is_active (w)))
2875 return; 3952 return;
2876 3953
2877 pri_adjust (EV_A_ (W)w); 3954 pri_adjust (EV_A_ (W)w);
… …
2890 3967
2891 EV_FREQUENT_CHECK; 3968 EV_FREQUENT_CHECK;
2892} 3969}
2893 3970
2894void 3971void
2895ev_idle_stop (EV_P_ ev_idle *w) 3972ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
2896{ 3973{
2897 clear_pending (EV_A_ (W)w); 3974 clear_pending (EV_A_ (W)w);
2898 if (expect_false (!ev_is_active (w))) 3975 if (expect_false (!ev_is_active (w)))
2899 return; 3976 return;
2900 3977
… …
2912 3989
2913 EV_FREQUENT_CHECK; 3990 EV_FREQUENT_CHECK;
2914} 3991}
2915#endif 3992#endif
2916 3993
3994#if EV_PREPARE_ENABLE
2917void 3995void
2918ev_prepare_start (EV_P_ ev_prepare *w) 3996ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
2919{ 3997{
2920 if (expect_false (ev_is_active (w))) 3998 if (expect_false (ev_is_active (w)))
2921 return; 3999 return;
2922 4000
2923 EV_FREQUENT_CHECK; 4001 EV_FREQUENT_CHECK;
… …
2928 4006
2929 EV_FREQUENT_CHECK; 4007 EV_FREQUENT_CHECK;
2930} 4008}
2931 4009
2932void 4010void
2933ev_prepare_stop (EV_P_ ev_prepare *w) 4011ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
2934{ 4012{
2935 clear_pending (EV_A_ (W)w); 4013 clear_pending (EV_A_ (W)w);
2936 if (expect_false (!ev_is_active (w))) 4014 if (expect_false (!ev_is_active (w)))
2937 return; 4015 return;
2938 4016
… …
2947 4025
2948 ev_stop (EV_A_ (W)w); 4026 ev_stop (EV_A_ (W)w);
2949 4027
2950 EV_FREQUENT_CHECK; 4028 EV_FREQUENT_CHECK;
2951} 4029}
4030#endif
2952 4031
4032#if EV_CHECK_ENABLE
2953void 4033void
2954ev_check_start (EV_P_ ev_check *w) 4034ev_check_start (EV_P_ ev_check *w) EV_THROW
2955{ 4035{
2956 if (expect_false (ev_is_active (w))) 4036 if (expect_false (ev_is_active (w)))
2957 return; 4037 return;
2958 4038
2959 EV_FREQUENT_CHECK; 4039 EV_FREQUENT_CHECK;
… …
2964 4044
2965 EV_FREQUENT_CHECK; 4045 EV_FREQUENT_CHECK;
2966} 4046}
2967 4047
2968void 4048void
2969ev_check_stop (EV_P_ ev_check *w) 4049ev_check_stop (EV_P_ ev_check *w) EV_THROW
2970{ 4050{
2971 clear_pending (EV_A_ (W)w); 4051 clear_pending (EV_A_ (W)w);
2972 if (expect_false (!ev_is_active (w))) 4052 if (expect_false (!ev_is_active (w)))
2973 return; 4053 return;
2974 4054
… …
2983 4063
2984 ev_stop (EV_A_ (W)w); 4064 ev_stop (EV_A_ (W)w);
2985 4065
2986 EV_FREQUENT_CHECK; 4066 EV_FREQUENT_CHECK;
2987} 4067}
4068#endif
2988 4069
2989#if EV_EMBED_ENABLE 4070#if EV_EMBED_ENABLE
2990void noinline 4071void noinline
2991ev_embed_sweep (EV_P_ ev_embed *w) 4072ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
2992{ 4073{
2993 ev_loop (w->other, EVLOOP_NONBLOCK); 4074 ev_run (w->other, EVRUN_NOWAIT);
2994} 4075}
2995 4076
2996static void 4077static void
2997embed_io_cb (EV_P_ ev_io *io, int revents) 4078embed_io_cb (EV_P_ ev_io *io, int revents)
2998{ 4079{
2999 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4080 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3000 4081
3001 if (ev_cb (w)) 4082 if (ev_cb (w))
3002 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4083 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3003 else 4084 else
3004 ev_loop (w->other, EVLOOP_NONBLOCK); 4085 ev_run (w->other, EVRUN_NOWAIT);
3005} 4086}
3006 4087
3007static void 4088static void
3008embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4089embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3009{ 4090{
3010 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4091 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3011 4092
3012 { 4093 {
3013 struct ev_loop *loop = w->other; 4094 EV_P = w->other;
3014 4095
3015 while (fdchangecnt) 4096 while (fdchangecnt)
3016 { 4097 {
3017 fd_reify (EV_A); 4098 fd_reify (EV_A);
3018 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4099 ev_run (EV_A_ EVRUN_NOWAIT);
3019 } 4100 }
3020 } 4101 }
3021} 4102}
3022 4103
3023static void 4104static void
… …
3026 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));
3027 4108
3028 ev_embed_stop (EV_A_ w); 4109 ev_embed_stop (EV_A_ w);
3029 4110
3030 { 4111 {
3031 struct ev_loop *loop = w->other; 4112 EV_P = w->other;
3032 4113
3033 ev_loop_fork (EV_A); 4114 ev_loop_fork (EV_A);
3034 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4115 ev_run (EV_A_ EVRUN_NOWAIT);
3035 } 4116 }
3036 4117
3037 ev_embed_start (EV_A_ w); 4118 ev_embed_start (EV_A_ w);
3038} 4119}
3039 4120
… …
3044 ev_idle_stop (EV_A_ idle); 4125 ev_idle_stop (EV_A_ idle);
3045} 4126}
3046#endif 4127#endif
3047 4128
3048void 4129void
3049ev_embed_start (EV_P_ ev_embed *w) 4130ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3050{ 4131{
3051 if (expect_false (ev_is_active (w))) 4132 if (expect_false (ev_is_active (w)))
3052 return; 4133 return;
3053 4134
3054 { 4135 {
3055 struct ev_loop *loop = w->other; 4136 EV_P = w->other;
3056 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 ()));
3057 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);
3058 } 4139 }
3059 4140
3060 EV_FREQUENT_CHECK; 4141 EV_FREQUENT_CHECK;
… …
3075 4156
3076 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3077} 4158}
3078 4159
3079void 4160void
3080ev_embed_stop (EV_P_ ev_embed *w) 4161ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3081{ 4162{
3082 clear_pending (EV_A_ (W)w); 4163 clear_pending (EV_A_ (W)w);
3083 if (expect_false (!ev_is_active (w))) 4164 if (expect_false (!ev_is_active (w)))
3084 return; 4165 return;
3085 4166
… …
3087 4168
3088 ev_io_stop (EV_A_ &w->io); 4169 ev_io_stop (EV_A_ &w->io);
3089 ev_prepare_stop (EV_A_ &w->prepare); 4170 ev_prepare_stop (EV_A_ &w->prepare);
3090 ev_fork_stop (EV_A_ &w->fork); 4171 ev_fork_stop (EV_A_ &w->fork);
3091 4172
4173 ev_stop (EV_A_ (W)w);
4174
3092 EV_FREQUENT_CHECK; 4175 EV_FREQUENT_CHECK;
3093} 4176}
3094#endif 4177#endif
3095 4178
3096#if EV_FORK_ENABLE 4179#if EV_FORK_ENABLE
3097void 4180void
3098ev_fork_start (EV_P_ ev_fork *w) 4181ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3099{ 4182{
3100 if (expect_false (ev_is_active (w))) 4183 if (expect_false (ev_is_active (w)))
3101 return; 4184 return;
3102 4185
3103 EV_FREQUENT_CHECK; 4186 EV_FREQUENT_CHECK;
… …
3108 4191
3109 EV_FREQUENT_CHECK; 4192 EV_FREQUENT_CHECK;
3110} 4193}
3111 4194
3112void 4195void
3113ev_fork_stop (EV_P_ ev_fork *w) 4196ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3114{ 4197{
3115 clear_pending (EV_A_ (W)w); 4198 clear_pending (EV_A_ (W)w);
3116 if (expect_false (!ev_is_active (w))) 4199 if (expect_false (!ev_is_active (w)))
3117 return; 4200 return;
3118 4201
… …
3129 4212
3130 EV_FREQUENT_CHECK; 4213 EV_FREQUENT_CHECK;
3131} 4214}
3132#endif 4215#endif
3133 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
3134#if EV_ASYNC_ENABLE 4258#if EV_ASYNC_ENABLE
3135void 4259void
3136ev_async_start (EV_P_ ev_async *w) 4260ev_async_start (EV_P_ ev_async *w) EV_THROW
3137{ 4261{
3138 if (expect_false (ev_is_active (w))) 4262 if (expect_false (ev_is_active (w)))
3139 return; 4263 return;
4264
4265 w->sent = 0;
3140 4266
3141 evpipe_init (EV_A); 4267 evpipe_init (EV_A);
3142 4268
3143 EV_FREQUENT_CHECK; 4269 EV_FREQUENT_CHECK;
3144 4270
… …
3148 4274
3149 EV_FREQUENT_CHECK; 4275 EV_FREQUENT_CHECK;
3150} 4276}
3151 4277
3152void 4278void
3153ev_async_stop (EV_P_ ev_async *w) 4279ev_async_stop (EV_P_ ev_async *w) EV_THROW
3154{ 4280{
3155 clear_pending (EV_A_ (W)w); 4281 clear_pending (EV_A_ (W)w);
3156 if (expect_false (!ev_is_active (w))) 4282 if (expect_false (!ev_is_active (w)))
3157 return; 4283 return;
3158 4284
… …
3169 4295
3170 EV_FREQUENT_CHECK; 4296 EV_FREQUENT_CHECK;
3171} 4297}
3172 4298
3173void 4299void
3174ev_async_send (EV_P_ ev_async *w) 4300ev_async_send (EV_P_ ev_async *w) EV_THROW
3175{ 4301{
3176 w->sent = 1; 4302 w->sent = 1;
3177 evpipe_write (EV_A_ &gotasync); 4303 evpipe_write (EV_A_ &async_pending);
3178} 4304}
3179#endif 4305#endif
3180 4306
3181/*****************************************************************************/ 4307/*****************************************************************************/
3182 4308
… …
3216 4342
3217 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));
3218} 4344}
3219 4345
3220void 4346void
3221ev_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
3222{ 4348{
3223 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));
3224 4350
3225 if (expect_false (!once)) 4351 if (expect_false (!once))
3226 { 4352 {
3227 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4353 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3228 return; 4354 return;
3229 } 4355 }
3230 4356
3231 once->cb = cb; 4357 once->cb = cb;
3232 once->arg = arg; 4358 once->arg = arg;
… …
3247} 4373}
3248 4374
3249/*****************************************************************************/ 4375/*****************************************************************************/
3250 4376
3251#if EV_WALK_ENABLE 4377#if EV_WALK_ENABLE
3252void 4378void ecb_cold
3253ev_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
3254{ 4380{
3255 int i, j; 4381 int i, j;
3256 ev_watcher_list *wl, *wn; 4382 ev_watcher_list *wl, *wn;
3257 4383
3258 if (types & (EV_IO | EV_EMBED)) 4384 if (types & (EV_IO | EV_EMBED))
… …
3301 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4427 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3302#endif 4428#endif
3303 4429
3304#if EV_IDLE_ENABLE 4430#if EV_IDLE_ENABLE
3305 if (types & EV_IDLE) 4431 if (types & EV_IDLE)
3306 for (j = NUMPRI; i--; ) 4432 for (j = NUMPRI; j--; )
3307 for (i = idlecnt [j]; i--; ) 4433 for (i = idlecnt [j]; i--; )
3308 cb (EV_A_ EV_IDLE, idles [j][i]); 4434 cb (EV_A_ EV_IDLE, idles [j][i]);
3309#endif 4435#endif
3310 4436
3311#if EV_FORK_ENABLE 4437#if EV_FORK_ENABLE
… …
3319 if (types & EV_ASYNC) 4445 if (types & EV_ASYNC)
3320 for (i = asynccnt; i--; ) 4446 for (i = asynccnt; i--; )
3321 cb (EV_A_ EV_ASYNC, asyncs [i]); 4447 cb (EV_A_ EV_ASYNC, asyncs [i]);
3322#endif 4448#endif
3323 4449
4450#if EV_PREPARE_ENABLE
3324 if (types & EV_PREPARE) 4451 if (types & EV_PREPARE)
3325 for (i = preparecnt; i--; ) 4452 for (i = preparecnt; i--; )
3326#if EV_EMBED_ENABLE 4453# if EV_EMBED_ENABLE
3327 if (ev_cb (prepares [i]) != embed_prepare_cb) 4454 if (ev_cb (prepares [i]) != embed_prepare_cb)
3328#endif 4455# endif
3329 cb (EV_A_ EV_PREPARE, prepares [i]); 4456 cb (EV_A_ EV_PREPARE, prepares [i]);
4457#endif
3330 4458
4459#if EV_CHECK_ENABLE
3331 if (types & EV_CHECK) 4460 if (types & EV_CHECK)
3332 for (i = checkcnt; i--; ) 4461 for (i = checkcnt; i--; )
3333 cb (EV_A_ EV_CHECK, checks [i]); 4462 cb (EV_A_ EV_CHECK, checks [i]);
4463#endif
3334 4464
4465#if EV_SIGNAL_ENABLE
3335 if (types & EV_SIGNAL) 4466 if (types & EV_SIGNAL)
3336 for (i = 0; i < signalmax; ++i) 4467 for (i = 0; i < EV_NSIG - 1; ++i)
3337 for (wl = signals [i].head; wl; ) 4468 for (wl = signals [i].head; wl; )
3338 { 4469 {
3339 wn = wl->next; 4470 wn = wl->next;
3340 cb (EV_A_ EV_SIGNAL, wl); 4471 cb (EV_A_ EV_SIGNAL, wl);
3341 wl = wn; 4472 wl = wn;
3342 } 4473 }
4474#endif
3343 4475
4476#if EV_CHILD_ENABLE
3344 if (types & EV_CHILD) 4477 if (types & EV_CHILD)
3345 for (i = EV_PID_HASHSIZE; i--; ) 4478 for (i = (EV_PID_HASHSIZE); i--; )
3346 for (wl = childs [i]; wl; ) 4479 for (wl = childs [i]; wl; )
3347 { 4480 {
3348 wn = wl->next; 4481 wn = wl->next;
3349 cb (EV_A_ EV_CHILD, wl); 4482 cb (EV_A_ EV_CHILD, wl);
3350 wl = wn; 4483 wl = wn;
3351 } 4484 }
4485#endif
3352/* EV_STAT 0x00001000 /* stat data changed */ 4486/* EV_STAT 0x00001000 /* stat data changed */
3353/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4487/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3354} 4488}
3355#endif 4489#endif
3356 4490
3357#if EV_MULTIPLICITY 4491#if EV_MULTIPLICITY
3358 #include "ev_wrap.h" 4492 #include "ev_wrap.h"
3359#endif 4493#endif
3360 4494
3361#ifdef __cplusplus
3362}
3363#endif
3364

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