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Comparing libev/ev.c (file contents):
Revision 1.295 by root, Wed Jul 8 04:29:31 2009 UTC vs.
Revision 1.427 by root, Sun May 6 19:29:59 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138# ifndef EV_USE_EVENTFD 148# ifndef EV_USE_SIGNALFD
139# if HAVE_EVENTFD 149# define EV_USE_SIGNALFD EV_FEATURE_OS
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
154# endif
155
156# if HAVE_EVENTFD
157# ifndef EV_USE_EVENTFD
158# define EV_USE_EVENTFD EV_FEATURE_OS
159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
144# endif 163# endif
145 164
146#endif 165#endif
147 166
148#include <math.h>
149#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
150#include <fcntl.h> 169#include <fcntl.h>
151#include <stddef.h> 170#include <stddef.h>
152 171
153#include <stdio.h> 172#include <stdio.h>
154 173
155#include <assert.h> 174#include <assert.h>
156#include <errno.h> 175#include <errno.h>
157#include <sys/types.h> 176#include <sys/types.h>
158#include <time.h> 177#include <time.h>
178#include <limits.h>
159 179
160#include <signal.h> 180#include <signal.h>
161 181
162#ifdef EV_H 182#ifdef EV_H
163# include EV_H 183# include EV_H
164#else 184#else
165# include "ev.h" 185# include "ev.h"
186#endif
187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
166#endif 197#endif
167 198
168#ifndef _WIN32 199#ifndef _WIN32
169# include <sys/time.h> 200# include <sys/time.h>
170# include <sys/wait.h> 201# include <sys/wait.h>
… …
174# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 206# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 207# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 208# define EV_SELECT_IS_WINSOCKET 1
178# endif 209# endif
210# undef EV_AVOID_STDIO
179#endif 211#endif
212
213/* OS X, in its infinite idiocy, actually HARDCODES
214 * a limit of 1024 into their select. Where people have brains,
215 * OS X engineers apparently have a vacuum. Or maybe they were
216 * ordered to have a vacuum, or they do anything for money.
217 * This might help. Or not.
218 */
219#define _DARWIN_UNLIMITED_SELECT 1
180 220
181/* this block tries to deduce configuration from header-defined symbols and defaults */ 221/* this block tries to deduce configuration from header-defined symbols and defaults */
222
223/* try to deduce the maximum number of signals on this platform */
224#if defined EV_NSIG
225/* use what's provided */
226#elif defined NSIG
227# define EV_NSIG (NSIG)
228#elif defined _NSIG
229# define EV_NSIG (_NSIG)
230#elif defined SIGMAX
231# define EV_NSIG (SIGMAX+1)
232#elif defined SIG_MAX
233# define EV_NSIG (SIG_MAX+1)
234#elif defined _SIG_MAX
235# define EV_NSIG (_SIG_MAX+1)
236#elif defined MAXSIG
237# define EV_NSIG (MAXSIG+1)
238#elif defined MAX_SIG
239# define EV_NSIG (MAX_SIG+1)
240#elif defined SIGARRAYSIZE
241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242#elif defined _sys_nsig
243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244#else
245# error "unable to find value for NSIG, please report"
246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
253#endif
182 254
183#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 258# else
187# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
188# endif 260# endif
189#endif 261#endif
190 262
191#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 266# else
195# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
196# endif 268# endif
197#endif 269#endif
198 270
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 273#endif
202 274
203#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 278# else
207# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
208# endif 280# endif
209#endif 281#endif
210 282
211#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 285#endif
214 286
215#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
216# ifdef _WIN32 288# ifdef _WIN32
217# define EV_USE_POLL 0 289# define EV_USE_POLL 0
218# else 290# else
219# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 292# endif
221#endif 293#endif
222 294
223#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 298# else
227# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
228# endif 300# endif
229#endif 301#endif
230 302
… …
236# define EV_USE_PORT 0 308# define EV_USE_PORT 0
237#endif 309#endif
238 310
239#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 314# else
243# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
244# endif 316# endif
245#endif 317#endif
246 318
247#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 320# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249# define EV_PID_HASHSIZE 1
250# else
251# define EV_PID_HASHSIZE 16
252# endif
253#endif 321#endif
254 322
255#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 324# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_INOTIFY_HASHSIZE 1
258# else
259# define EV_INOTIFY_HASHSIZE 16
260# endif
261#endif 325#endif
262 326
263#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 330# else
267# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
332# endif
333#endif
334
335#ifndef EV_USE_SIGNALFD
336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
337# define EV_USE_SIGNALFD EV_FEATURE_OS
338# else
339# define EV_USE_SIGNALFD 0
268# endif 340# endif
269#endif 341#endif
270 342
271#if 0 /* debugging */ 343#if 0 /* debugging */
272# define EV_VERIFY 3 344# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
275#endif 347#endif
276 348
277#ifndef EV_VERIFY 349#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 351#endif
280 352
281#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 355#endif
284 356
285#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif 359#endif
288 360
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
292# include <syscall.h> 364# include <sys/syscall.h>
293# ifdef SYS_clock_gettime 365# ifdef SYS_clock_gettime
294# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
295# undef EV_USE_MONOTONIC 367# undef EV_USE_MONOTONIC
296# define EV_USE_MONOTONIC 1 368# define EV_USE_MONOTONIC 1
297# else 369# else
… …
300# endif 372# endif
301#endif 373#endif
302 374
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 375/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304 376
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
305#ifndef CLOCK_MONOTONIC 383#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 385# define EV_USE_MONOTONIC 0
308#endif 386#endif
309 387
… …
316# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
318#endif 396#endif
319 397
320#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
321# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
322# include <sys/select.h> 401# include <sys/select.h>
323# endif 402# endif
324#endif 403#endif
325 404
326#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 406# include <sys/statfs.h>
329# include <sys/inotify.h> 407# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
339#endif 417#endif
340 418
341#if EV_USE_EVENTFD 419#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 420/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 421# include <stdint.h>
344# ifdef __cplusplus 422# ifndef EFD_NONBLOCK
345extern "C" { 423# define EFD_NONBLOCK O_NONBLOCK
346# endif 424# endif
347int eventfd (unsigned int initval, int flags); 425# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 426# ifdef O_CLOEXEC
349} 427# define EFD_CLOEXEC O_CLOEXEC
428# else
429# define EFD_CLOEXEC 02000000
430# endif
350# endif 431# endif
432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
433#endif
434
435#if EV_USE_SIGNALFD
436/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
437# include <stdint.h>
438# ifndef SFD_NONBLOCK
439# define SFD_NONBLOCK O_NONBLOCK
440# endif
441# ifndef SFD_CLOEXEC
442# ifdef O_CLOEXEC
443# define SFD_CLOEXEC O_CLOEXEC
444# else
445# define SFD_CLOEXEC 02000000
446# endif
447# endif
448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
449
450struct signalfd_siginfo
451{
452 uint32_t ssi_signo;
453 char pad[128 - sizeof (uint32_t)];
454};
351#endif 455#endif
352 456
353/**/ 457/**/
354 458
355#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 461#else
358# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
359#endif 463#endif
360 464
361/* 465/*
362 * This is used to avoid floating point rounding problems. 466 * This is used to work around floating point rounding problems.
363 * It is added to ev_rt_now when scheduling periodics
364 * to ensure progress, time-wise, even when rounding
365 * errors are against us.
366 * This value is good at least till the year 4000. 467 * This value is good at least till the year 4000.
367 * Better solutions welcome.
368 */ 468 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
470/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
370 471
371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 472#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
372#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 473#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
373/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
374 474
475#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
476#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
477
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */
480/*
481 * libecb - http://software.schmorp.de/pkg/libecb
482 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved.
486 *
487 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met:
489 *
490 * 1. Redistributions of source code must retain the above copyright notice,
491 * this list of conditions and the following disclaimer.
492 *
493 * 2. Redistributions in binary form must reproduce the above copyright
494 * notice, this list of conditions and the following disclaimer in the
495 * documentation and/or other materials provided with the distribution.
496 *
497 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
498 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
499 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
500 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
501 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE.
507 */
508
509#ifndef ECB_H
510#define ECB_H
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
375#if __GNUC__ >= 4 519 #if __GNUC__
376# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
377# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
378#else 526#else
379# define expect(expr,value) (expr) 527 #include <inttypes.h>
380# define noinline
381# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
382# define inline
383# endif 528#endif
529
530/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place.
536 */
537#ifndef ECB_GCC_VERSION
538 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0
540 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
384#endif 542 #endif
543#endif
385 544
545/*****************************************************************************/
546
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549
550#if ECB_NO_THREADS
551# define ECB_NO_SMP 1
552#endif
553
554#if ECB_NO_THREADS || ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0)
556#endif
557
558#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined __mips__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
584 #elif defined __alpha__
585 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
586 #endif
587 #endif
588#endif
589
590#ifndef ECB_MEMORY_FENCE
591 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
592 #define ECB_MEMORY_FENCE __sync_synchronize ()
593 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
594 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
595 #elif _MSC_VER >= 1400 /* VC++ 2005 */
596 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
597 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
598 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
599 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
600 #elif defined _WIN32
601 #include <WinNT.h>
602 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
603 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
604 #include <mbarrier.h>
605 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
606 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
607 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
608 #elif __xlC__
609 #define ECB_MEMORY_FENCE __sync ()
610 #endif
611#endif
612
613#ifndef ECB_MEMORY_FENCE
614 #if !ECB_AVOID_PTHREADS
615 /*
616 * if you get undefined symbol references to pthread_mutex_lock,
617 * or failure to find pthread.h, then you should implement
618 * the ECB_MEMORY_FENCE operations for your cpu/compiler
619 * OR provide pthread.h and link against the posix thread library
620 * of your system.
621 */
622 #include <pthread.h>
623 #define ECB_NEEDS_PTHREADS 1
624 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
625
626 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
627 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
628 #endif
629#endif
630
631#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
633#endif
634
635#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
636 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
637#endif
638
639/*****************************************************************************/
640
641#define ECB_C99 (__STDC_VERSION__ >= 199901L)
642
643#if __cplusplus
644 #define ecb_inline static inline
645#elif ECB_GCC_VERSION(2,5)
646 #define ecb_inline static __inline__
647#elif ECB_C99
648 #define ecb_inline static inline
649#else
650 #define ecb_inline static
651#endif
652
653#if ECB_GCC_VERSION(3,3)
654 #define ecb_restrict __restrict__
655#elif ECB_C99
656 #define ecb_restrict restrict
657#else
658 #define ecb_restrict
659#endif
660
661typedef int ecb_bool;
662
663#define ECB_CONCAT_(a, b) a ## b
664#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
665#define ECB_STRINGIFY_(a) # a
666#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
667
668#define ecb_function_ ecb_inline
669
670#if ECB_GCC_VERSION(3,1)
671 #define ecb_attribute(attrlist) __attribute__(attrlist)
672 #define ecb_is_constant(expr) __builtin_constant_p (expr)
673 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
674 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
675#else
676 #define ecb_attribute(attrlist)
677 #define ecb_is_constant(expr) 0
678 #define ecb_expect(expr,value) (expr)
679 #define ecb_prefetch(addr,rw,locality)
680#endif
681
682/* no emulation for ecb_decltype */
683#if ECB_GCC_VERSION(4,5)
684 #define ecb_decltype(x) __decltype(x)
685#elif ECB_GCC_VERSION(3,0)
686 #define ecb_decltype(x) __typeof(x)
687#endif
688
689#define ecb_noinline ecb_attribute ((__noinline__))
690#define ecb_noreturn ecb_attribute ((__noreturn__))
691#define ecb_unused ecb_attribute ((__unused__))
692#define ecb_const ecb_attribute ((__const__))
693#define ecb_pure ecb_attribute ((__pure__))
694
695#if ECB_GCC_VERSION(4,3)
696 #define ecb_artificial ecb_attribute ((__artificial__))
697 #define ecb_hot ecb_attribute ((__hot__))
698 #define ecb_cold ecb_attribute ((__cold__))
699#else
700 #define ecb_artificial
701 #define ecb_hot
702 #define ecb_cold
703#endif
704
705/* put around conditional expressions if you are very sure that the */
706/* expression is mostly true or mostly false. note that these return */
707/* booleans, not the expression. */
386#define expect_false(expr) expect ((expr) != 0, 0) 708#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 709#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
710/* for compatibility to the rest of the world */
711#define ecb_likely(expr) ecb_expect_true (expr)
712#define ecb_unlikely(expr) ecb_expect_false (expr)
713
714/* count trailing zero bits and count # of one bits */
715#if ECB_GCC_VERSION(3,4)
716 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
717 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
718 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
719 #define ecb_ctz32(x) __builtin_ctz (x)
720 #define ecb_ctz64(x) __builtin_ctzll (x)
721 #define ecb_popcount32(x) __builtin_popcount (x)
722 /* no popcountll */
723#else
724 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
725 ecb_function_ int
726 ecb_ctz32 (uint32_t x)
727 {
728 int r = 0;
729
730 x &= ~x + 1; /* this isolates the lowest bit */
731
732#if ECB_branchless_on_i386
733 r += !!(x & 0xaaaaaaaa) << 0;
734 r += !!(x & 0xcccccccc) << 1;
735 r += !!(x & 0xf0f0f0f0) << 2;
736 r += !!(x & 0xff00ff00) << 3;
737 r += !!(x & 0xffff0000) << 4;
738#else
739 if (x & 0xaaaaaaaa) r += 1;
740 if (x & 0xcccccccc) r += 2;
741 if (x & 0xf0f0f0f0) r += 4;
742 if (x & 0xff00ff00) r += 8;
743 if (x & 0xffff0000) r += 16;
744#endif
745
746 return r;
747 }
748
749 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
750 ecb_function_ int
751 ecb_ctz64 (uint64_t x)
752 {
753 int shift = x & 0xffffffffU ? 0 : 32;
754 return ecb_ctz32 (x >> shift) + shift;
755 }
756
757 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
758 ecb_function_ int
759 ecb_popcount32 (uint32_t x)
760 {
761 x -= (x >> 1) & 0x55555555;
762 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
763 x = ((x >> 4) + x) & 0x0f0f0f0f;
764 x *= 0x01010101;
765
766 return x >> 24;
767 }
768
769 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
770 ecb_function_ int ecb_ld32 (uint32_t x)
771 {
772 int r = 0;
773
774 if (x >> 16) { x >>= 16; r += 16; }
775 if (x >> 8) { x >>= 8; r += 8; }
776 if (x >> 4) { x >>= 4; r += 4; }
777 if (x >> 2) { x >>= 2; r += 2; }
778 if (x >> 1) { r += 1; }
779
780 return r;
781 }
782
783 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
784 ecb_function_ int ecb_ld64 (uint64_t x)
785 {
786 int r = 0;
787
788 if (x >> 32) { x >>= 32; r += 32; }
789
790 return r + ecb_ld32 (x);
791 }
792#endif
793
794ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796{
797 return ( (x * 0x0802U & 0x22110U)
798 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
799}
800
801ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
803{
804 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
805 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
806 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
807 x = ( x >> 8 ) | ( x << 8);
808
809 return x;
810}
811
812ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
814{
815 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
816 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
817 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
818 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
819 x = ( x >> 16 ) | ( x << 16);
820
821 return x;
822}
823
824/* popcount64 is only available on 64 bit cpus as gcc builtin */
825/* so for this version we are lazy */
826ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
827ecb_function_ int
828ecb_popcount64 (uint64_t x)
829{
830 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
831}
832
833ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
834ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
841
842ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
843ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
844ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
845ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
846ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
847ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
848ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
849ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
850
851#if ECB_GCC_VERSION(4,3)
852 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
853 #define ecb_bswap32(x) __builtin_bswap32 (x)
854 #define ecb_bswap64(x) __builtin_bswap64 (x)
855#else
856 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
857 ecb_function_ uint16_t
858 ecb_bswap16 (uint16_t x)
859 {
860 return ecb_rotl16 (x, 8);
861 }
862
863 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
864 ecb_function_ uint32_t
865 ecb_bswap32 (uint32_t x)
866 {
867 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
868 }
869
870 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
871 ecb_function_ uint64_t
872 ecb_bswap64 (uint64_t x)
873 {
874 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
875 }
876#endif
877
878#if ECB_GCC_VERSION(4,5)
879 #define ecb_unreachable() __builtin_unreachable ()
880#else
881 /* this seems to work fine, but gcc always emits a warning for it :/ */
882 ecb_inline void ecb_unreachable (void) ecb_noreturn;
883 ecb_inline void ecb_unreachable (void) { }
884#endif
885
886/* try to tell the compiler that some condition is definitely true */
887#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
888
889ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
890ecb_inline unsigned char
891ecb_byteorder_helper (void)
892{
893 const uint32_t u = 0x11223344;
894 return *(unsigned char *)&u;
895}
896
897ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
898ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
899ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
900ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
901
902#if ECB_GCC_VERSION(3,0) || ECB_C99
903 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
904#else
905 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
906#endif
907
908#if __cplusplus
909 template<typename T>
910 static inline T ecb_div_rd (T val, T div)
911 {
912 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
913 }
914 template<typename T>
915 static inline T ecb_div_ru (T val, T div)
916 {
917 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
918 }
919#else
920 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
921 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
922#endif
923
924#if ecb_cplusplus_does_not_suck
925 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
926 template<typename T, int N>
927 static inline int ecb_array_length (const T (&arr)[N])
928 {
929 return N;
930 }
931#else
932 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
933#endif
934
935#endif
936
937/* ECB.H END */
938
939#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
940/* if your architecture doesn't need memory fences, e.g. because it is
941 * single-cpu/core, or if you use libev in a project that doesn't use libev
942 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
943 * libev, in which cases the memory fences become nops.
944 * alternatively, you can remove this #error and link against libpthread,
945 * which will then provide the memory fences.
946 */
947# error "memory fences not defined for your architecture, please report"
948#endif
949
950#ifndef ECB_MEMORY_FENCE
951# define ECB_MEMORY_FENCE do { } while (0)
952# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
953# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
954#endif
955
956#define expect_false(cond) ecb_expect_false (cond)
957#define expect_true(cond) ecb_expect_true (cond)
958#define noinline ecb_noinline
959
388#define inline_size static inline 960#define inline_size ecb_inline
389 961
390#if EV_MINIMAL 962#if EV_FEATURE_CODE
963# define inline_speed ecb_inline
964#else
391# define inline_speed static noinline 965# define inline_speed static noinline
392#else
393# define inline_speed static inline
394#endif 966#endif
395 967
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397 969
398#if EV_MINPRI == EV_MAXPRI 970#if EV_MINPRI == EV_MAXPRI
… …
411#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
412#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
413 985
414#if EV_USE_REALTIME 986#if EV_USE_REALTIME
415/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 987/* sig_atomic_t is used to avoid per-thread variables or locking but still */
416/* giving it a reasonably high chance of working on typical architetcures */ 988/* giving it a reasonably high chance of working on typical architectures */
417static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
418#endif 990#endif
419 991
420#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
421static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422#endif 994#endif
423 995
996#ifndef EV_FD_TO_WIN32_HANDLE
997# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
998#endif
999#ifndef EV_WIN32_HANDLE_TO_FD
1000# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
1001#endif
1002#ifndef EV_WIN32_CLOSE_FD
1003# define EV_WIN32_CLOSE_FD(fd) close (fd)
1004#endif
1005
424#ifdef _WIN32 1006#ifdef _WIN32
425# include "ev_win32.c" 1007# include "ev_win32.c"
426#endif 1008#endif
427 1009
428/*****************************************************************************/ 1010/*****************************************************************************/
429 1011
1012/* define a suitable floor function (only used by periodics atm) */
1013
1014#if EV_USE_FLOOR
1015# include <math.h>
1016# define ev_floor(v) floor (v)
1017#else
1018
1019#include <float.h>
1020
1021/* a floor() replacement function, should be independent of ev_tstamp type */
1022static ev_tstamp noinline
1023ev_floor (ev_tstamp v)
1024{
1025 /* the choice of shift factor is not terribly important */
1026#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1027 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1028#else
1029 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1030#endif
1031
1032 /* argument too large for an unsigned long? */
1033 if (expect_false (v >= shift))
1034 {
1035 ev_tstamp f;
1036
1037 if (v == v - 1.)
1038 return v; /* very large number */
1039
1040 f = shift * ev_floor (v * (1. / shift));
1041 return f + ev_floor (v - f);
1042 }
1043
1044 /* special treatment for negative args? */
1045 if (expect_false (v < 0.))
1046 {
1047 ev_tstamp f = -ev_floor (-v);
1048
1049 return f - (f == v ? 0 : 1);
1050 }
1051
1052 /* fits into an unsigned long */
1053 return (unsigned long)v;
1054}
1055
1056#endif
1057
1058/*****************************************************************************/
1059
1060#ifdef __linux
1061# include <sys/utsname.h>
1062#endif
1063
1064static unsigned int noinline ecb_cold
1065ev_linux_version (void)
1066{
1067#ifdef __linux
1068 unsigned int v = 0;
1069 struct utsname buf;
1070 int i;
1071 char *p = buf.release;
1072
1073 if (uname (&buf))
1074 return 0;
1075
1076 for (i = 3+1; --i; )
1077 {
1078 unsigned int c = 0;
1079
1080 for (;;)
1081 {
1082 if (*p >= '0' && *p <= '9')
1083 c = c * 10 + *p++ - '0';
1084 else
1085 {
1086 p += *p == '.';
1087 break;
1088 }
1089 }
1090
1091 v = (v << 8) | c;
1092 }
1093
1094 return v;
1095#else
1096 return 0;
1097#endif
1098}
1099
1100/*****************************************************************************/
1101
1102#if EV_AVOID_STDIO
1103static void noinline ecb_cold
1104ev_printerr (const char *msg)
1105{
1106 write (STDERR_FILENO, msg, strlen (msg));
1107}
1108#endif
1109
430static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
431 1111
432void 1112void ecb_cold
433ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
434{ 1114{
435 syserr_cb = cb; 1115 syserr_cb = cb;
436} 1116}
437 1117
438static void noinline 1118static void noinline ecb_cold
439ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
440{ 1120{
441 if (!msg) 1121 if (!msg)
442 msg = "(libev) system error"; 1122 msg = "(libev) system error";
443 1123
444 if (syserr_cb) 1124 if (syserr_cb)
445 syserr_cb (msg); 1125 syserr_cb (msg);
446 else 1126 else
447 { 1127 {
1128#if EV_AVOID_STDIO
1129 ev_printerr (msg);
1130 ev_printerr (": ");
1131 ev_printerr (strerror (errno));
1132 ev_printerr ("\n");
1133#else
448 perror (msg); 1134 perror (msg);
1135#endif
449 abort (); 1136 abort ();
450 } 1137 }
451} 1138}
452 1139
453static void * 1140static void *
454ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
455{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
456 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
457 * implement realloc (x, 0) (as required by both ansi c-98 and 1147 * implement realloc (x, 0) (as required by both ansi c-89 and
458 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
459 */ 1149 */
460 1150
461 if (size) 1151 if (size)
462 return realloc (ptr, size); 1152 return realloc (ptr, size);
463 1153
464 free (ptr); 1154 free (ptr);
465 return 0; 1155 return 0;
1156#endif
466} 1157}
467 1158
468static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
469 1160
470void 1161void ecb_cold
471ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
472{ 1163{
473 alloc = cb; 1164 alloc = cb;
474} 1165}
475 1166
476inline_speed void * 1167inline_speed void *
… …
478{ 1169{
479 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
480 1171
481 if (!ptr && size) 1172 if (!ptr && size)
482 { 1173 {
1174#if EV_AVOID_STDIO
1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1176#else
483 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1178#endif
484 abort (); 1179 abort ();
485 } 1180 }
486 1181
487 return ptr; 1182 return ptr;
488} 1183}
… …
490#define ev_malloc(size) ev_realloc (0, (size)) 1185#define ev_malloc(size) ev_realloc (0, (size))
491#define ev_free(ptr) ev_realloc ((ptr), 0) 1186#define ev_free(ptr) ev_realloc ((ptr), 0)
492 1187
493/*****************************************************************************/ 1188/*****************************************************************************/
494 1189
1190/* set in reify when reification needed */
1191#define EV_ANFD_REIFY 1
1192
495/* file descriptor info structure */ 1193/* file descriptor info structure */
496typedef struct 1194typedef struct
497{ 1195{
498 WL head; 1196 WL head;
499 unsigned char events; /* the events watched for */ 1197 unsigned char events; /* the events watched for */
500 unsigned char reify; /* flag set when this ANFD needs reification */ 1198 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
501 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1199 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
502 unsigned char unused; 1200 unsigned char unused;
503#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
504 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
505#endif 1203#endif
506#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
507 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
508#endif 1209#endif
509} ANFD; 1210} ANFD;
510 1211
511/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
512typedef struct 1213typedef struct
… …
554 #undef VAR 1255 #undef VAR
555 }; 1256 };
556 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
557 1258
558 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
559 struct ev_loop *ev_default_loop_ptr; 1260 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
560 1261
561#else 1262#else
562 1263
563 ev_tstamp ev_rt_now; 1264 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
564 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
565 #include "ev_vars.h" 1266 #include "ev_vars.h"
566 #undef VAR 1267 #undef VAR
567 1268
568 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
569 1270
570#endif 1271#endif
571 1272
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
572/*****************************************************************************/ 1285/*****************************************************************************/
573 1286
574#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
575ev_tstamp 1288ev_tstamp
576ev_time (void) 1289ev_time (void) EV_THROW
577{ 1290{
578#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
579 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
580 { 1293 {
581 struct timespec ts; 1294 struct timespec ts;
… …
605 return ev_time (); 1318 return ev_time ();
606} 1319}
607 1320
608#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
609ev_tstamp 1322ev_tstamp
610ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
611{ 1324{
612 return ev_rt_now; 1325 return ev_rt_now;
613} 1326}
614#endif 1327#endif
615 1328
616void 1329void
617ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
618{ 1331{
619 if (delay > 0.) 1332 if (delay > 0.)
620 { 1333 {
621#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
622 struct timespec ts; 1335 struct timespec ts;
623 1336
624 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
625 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
626
627 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
628#elif defined(_WIN32) 1339#elif defined _WIN32
629 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
630#else 1341#else
631 struct timeval tv; 1342 struct timeval tv;
632 1343
633 tv.tv_sec = (time_t)delay;
634 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
635
636 /* 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 */
637 /* somehting not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
638 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
639 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
640#endif 1349#endif
641 } 1350 }
642} 1351}
643 1352
644/*****************************************************************************/ 1353/*****************************************************************************/
645 1354
646#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 */
647 1356
648/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
649/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
650inline_size int 1359inline_size int
651array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
652{ 1361{
653 int ncur = cur + 1; 1362 int ncur = cur + 1;
654 1363
655 do 1364 do
656 ncur <<= 1; 1365 ncur <<= 1;
657 while (cnt > ncur); 1366 while (cnt > ncur);
658 1367
659 /* 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 */
660 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
661 { 1370 {
662 ncur *= elem; 1371 ncur *= elem;
663 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);
664 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
666 } 1375 }
667 1376
668 return ncur; 1377 return ncur;
669} 1378}
670 1379
671static noinline void * 1380static void * noinline ecb_cold
672array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
673{ 1382{
674 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
675 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
676} 1385}
… …
679 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
680 1389
681#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
682 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
683 { \ 1392 { \
684 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
685 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
686 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
687 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
688 } 1397 }
689 1398
… …
707pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
708{ 1417{
709} 1418}
710 1419
711void noinline 1420void noinline
712ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
713{ 1422{
714 W w_ = (W)w; 1423 W w_ = (W)w;
715 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
716 1425
717 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
721 w_->pending = ++pendingcnt [pri]; 1430 w_->pending = ++pendingcnt [pri];
722 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1431 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
723 pendings [pri][w_->pending - 1].w = w_; 1432 pendings [pri][w_->pending - 1].w = w_;
724 pendings [pri][w_->pending - 1].events = revents; 1433 pendings [pri][w_->pending - 1].events = revents;
725 } 1434 }
1435
1436 pendingpri = NUMPRI - 1;
726} 1437}
727 1438
728inline_speed void 1439inline_speed void
729feed_reverse (EV_P_ W w) 1440feed_reverse (EV_P_ W w)
730{ 1441{
… …
750} 1461}
751 1462
752/*****************************************************************************/ 1463/*****************************************************************************/
753 1464
754inline_speed void 1465inline_speed void
755fd_event (EV_P_ int fd, int revents) 1466fd_event_nocheck (EV_P_ int fd, int revents)
756{ 1467{
757 ANFD *anfd = anfds + fd; 1468 ANFD *anfd = anfds + fd;
758 ev_io *w; 1469 ev_io *w;
759 1470
760 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1471 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
764 if (ev) 1475 if (ev)
765 ev_feed_event (EV_A_ (W)w, ev); 1476 ev_feed_event (EV_A_ (W)w, ev);
766 } 1477 }
767} 1478}
768 1479
1480/* do not submit kernel events for fds that have reify set */
1481/* because that means they changed while we were polling for new events */
1482inline_speed void
1483fd_event (EV_P_ int fd, int revents)
1484{
1485 ANFD *anfd = anfds + fd;
1486
1487 if (expect_true (!anfd->reify))
1488 fd_event_nocheck (EV_A_ fd, revents);
1489}
1490
769void 1491void
770ev_feed_fd_event (EV_P_ int fd, int revents) 1492ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
771{ 1493{
772 if (fd >= 0 && fd < anfdmax) 1494 if (fd >= 0 && fd < anfdmax)
773 fd_event (EV_A_ fd, revents); 1495 fd_event_nocheck (EV_A_ fd, revents);
774} 1496}
775 1497
776/* make sure the external fd watch events are in-sync */ 1498/* make sure the external fd watch events are in-sync */
777/* with the kernel/libev internal state */ 1499/* with the kernel/libev internal state */
778inline_size void 1500inline_size void
779fd_reify (EV_P) 1501fd_reify (EV_P)
780{ 1502{
781 int i; 1503 int i;
782 1504
1505#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1506 for (i = 0; i < fdchangecnt; ++i)
1507 {
1508 int fd = fdchanges [i];
1509 ANFD *anfd = anfds + fd;
1510
1511 if (anfd->reify & EV__IOFDSET && anfd->head)
1512 {
1513 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1514
1515 if (handle != anfd->handle)
1516 {
1517 unsigned long arg;
1518
1519 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1520
1521 /* handle changed, but fd didn't - we need to do it in two steps */
1522 backend_modify (EV_A_ fd, anfd->events, 0);
1523 anfd->events = 0;
1524 anfd->handle = handle;
1525 }
1526 }
1527 }
1528#endif
1529
783 for (i = 0; i < fdchangecnt; ++i) 1530 for (i = 0; i < fdchangecnt; ++i)
784 { 1531 {
785 int fd = fdchanges [i]; 1532 int fd = fdchanges [i];
786 ANFD *anfd = anfds + fd; 1533 ANFD *anfd = anfds + fd;
787 ev_io *w; 1534 ev_io *w;
788 1535
789 unsigned char events = 0; 1536 unsigned char o_events = anfd->events;
1537 unsigned char o_reify = anfd->reify;
790 1538
791 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1539 anfd->reify = 0;
792 events |= (unsigned char)w->events;
793 1540
794#if EV_SELECT_IS_WINSOCKET 1541 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
795 if (events)
796 { 1542 {
797 unsigned long arg; 1543 anfd->events = 0;
798 #ifdef EV_FD_TO_WIN32_HANDLE 1544
799 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1545 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
800 #else 1546 anfd->events |= (unsigned char)w->events;
801 anfd->handle = _get_osfhandle (fd); 1547
802 #endif 1548 if (o_events != anfd->events)
803 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1549 o_reify = EV__IOFDSET; /* actually |= */
804 } 1550 }
805#endif
806 1551
807 { 1552 if (o_reify & EV__IOFDSET)
808 unsigned char o_events = anfd->events;
809 unsigned char o_reify = anfd->reify;
810
811 anfd->reify = 0;
812 anfd->events = events;
813
814 if (o_events != events || o_reify & EV__IOFDSET)
815 backend_modify (EV_A_ fd, o_events, events); 1553 backend_modify (EV_A_ fd, o_events, anfd->events);
816 }
817 } 1554 }
818 1555
819 fdchangecnt = 0; 1556 fdchangecnt = 0;
820} 1557}
821 1558
… …
833 fdchanges [fdchangecnt - 1] = fd; 1570 fdchanges [fdchangecnt - 1] = fd;
834 } 1571 }
835} 1572}
836 1573
837/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1574/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
838inline_speed void 1575inline_speed void ecb_cold
839fd_kill (EV_P_ int fd) 1576fd_kill (EV_P_ int fd)
840{ 1577{
841 ev_io *w; 1578 ev_io *w;
842 1579
843 while ((w = (ev_io *)anfds [fd].head)) 1580 while ((w = (ev_io *)anfds [fd].head))
… …
845 ev_io_stop (EV_A_ w); 1582 ev_io_stop (EV_A_ w);
846 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1583 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
847 } 1584 }
848} 1585}
849 1586
850/* check whether the given fd is atcually valid, for error recovery */ 1587/* check whether the given fd is actually valid, for error recovery */
851inline_size int 1588inline_size int ecb_cold
852fd_valid (int fd) 1589fd_valid (int fd)
853{ 1590{
854#ifdef _WIN32 1591#ifdef _WIN32
855 return _get_osfhandle (fd) != -1; 1592 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
856#else 1593#else
857 return fcntl (fd, F_GETFD) != -1; 1594 return fcntl (fd, F_GETFD) != -1;
858#endif 1595#endif
859} 1596}
860 1597
861/* called on EBADF to verify fds */ 1598/* called on EBADF to verify fds */
862static void noinline 1599static void noinline ecb_cold
863fd_ebadf (EV_P) 1600fd_ebadf (EV_P)
864{ 1601{
865 int fd; 1602 int fd;
866 1603
867 for (fd = 0; fd < anfdmax; ++fd) 1604 for (fd = 0; fd < anfdmax; ++fd)
… …
869 if (!fd_valid (fd) && errno == EBADF) 1606 if (!fd_valid (fd) && errno == EBADF)
870 fd_kill (EV_A_ fd); 1607 fd_kill (EV_A_ fd);
871} 1608}
872 1609
873/* called on ENOMEM in select/poll to kill some fds and retry */ 1610/* called on ENOMEM in select/poll to kill some fds and retry */
874static void noinline 1611static void noinline ecb_cold
875fd_enomem (EV_P) 1612fd_enomem (EV_P)
876{ 1613{
877 int fd; 1614 int fd;
878 1615
879 for (fd = anfdmax; fd--; ) 1616 for (fd = anfdmax; fd--; )
880 if (anfds [fd].events) 1617 if (anfds [fd].events)
881 { 1618 {
882 fd_kill (EV_A_ fd); 1619 fd_kill (EV_A_ fd);
883 return; 1620 break;
884 } 1621 }
885} 1622}
886 1623
887/* usually called after fork if backend needs to re-arm all fds from scratch */ 1624/* usually called after fork if backend needs to re-arm all fds from scratch */
888static void noinline 1625static void noinline
… …
893 for (fd = 0; fd < anfdmax; ++fd) 1630 for (fd = 0; fd < anfdmax; ++fd)
894 if (anfds [fd].events) 1631 if (anfds [fd].events)
895 { 1632 {
896 anfds [fd].events = 0; 1633 anfds [fd].events = 0;
897 anfds [fd].emask = 0; 1634 anfds [fd].emask = 0;
898 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1635 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
899 } 1636 }
900} 1637}
901 1638
1639/* used to prepare libev internal fd's */
1640/* this is not fork-safe */
1641inline_speed void
1642fd_intern (int fd)
1643{
1644#ifdef _WIN32
1645 unsigned long arg = 1;
1646 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1647#else
1648 fcntl (fd, F_SETFD, FD_CLOEXEC);
1649 fcntl (fd, F_SETFL, O_NONBLOCK);
1650#endif
1651}
1652
902/*****************************************************************************/ 1653/*****************************************************************************/
903 1654
904/* 1655/*
905 * the heap functions want a real array index. array index 0 uis guaranteed to not 1656 * the heap functions want a real array index. array index 0 is guaranteed to not
906 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1657 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
907 * the branching factor of the d-tree. 1658 * the branching factor of the d-tree.
908 */ 1659 */
909 1660
910/* 1661/*
… …
978 1729
979 for (;;) 1730 for (;;)
980 { 1731 {
981 int c = k << 1; 1732 int c = k << 1;
982 1733
983 if (c > N + HEAP0 - 1) 1734 if (c >= N + HEAP0)
984 break; 1735 break;
985 1736
986 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1737 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
987 ? 1 : 0; 1738 ? 1 : 0;
988 1739
… …
1024 1775
1025/* move an element suitably so it is in a correct place */ 1776/* move an element suitably so it is in a correct place */
1026inline_size void 1777inline_size void
1027adjustheap (ANHE *heap, int N, int k) 1778adjustheap (ANHE *heap, int N, int k)
1028{ 1779{
1029 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1780 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1030 upheap (heap, k); 1781 upheap (heap, k);
1031 else 1782 else
1032 downheap (heap, N, k); 1783 downheap (heap, N, k);
1033} 1784}
1034 1785
… …
1047/*****************************************************************************/ 1798/*****************************************************************************/
1048 1799
1049/* associate signal watchers to a signal signal */ 1800/* associate signal watchers to a signal signal */
1050typedef struct 1801typedef struct
1051{ 1802{
1803 EV_ATOMIC_T pending;
1804#if EV_MULTIPLICITY
1805 EV_P;
1806#endif
1052 WL head; 1807 WL head;
1053 EV_ATOMIC_T gotsig;
1054} ANSIG; 1808} ANSIG;
1055 1809
1056static ANSIG *signals; 1810static ANSIG signals [EV_NSIG - 1];
1057static int signalmax;
1058
1059static EV_ATOMIC_T gotsig;
1060 1811
1061/*****************************************************************************/ 1812/*****************************************************************************/
1062 1813
1063/* used to prepare libev internal fd's */ 1814#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1064/* this is not fork-safe */
1065inline_speed void
1066fd_intern (int fd)
1067{
1068#ifdef _WIN32
1069 unsigned long arg = 1;
1070 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1071#else
1072 fcntl (fd, F_SETFD, FD_CLOEXEC);
1073 fcntl (fd, F_SETFL, O_NONBLOCK);
1074#endif
1075}
1076 1815
1077static void noinline 1816static void noinline ecb_cold
1078evpipe_init (EV_P) 1817evpipe_init (EV_P)
1079{ 1818{
1080 if (!ev_is_active (&pipe_w)) 1819 if (!ev_is_active (&pipe_w))
1081 { 1820 {
1082#if EV_USE_EVENTFD 1821# if EV_USE_EVENTFD
1822 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1823 if (evfd < 0 && errno == EINVAL)
1083 if ((evfd = eventfd (0, 0)) >= 0) 1824 evfd = eventfd (0, 0);
1825
1826 if (evfd >= 0)
1084 { 1827 {
1085 evpipe [0] = -1; 1828 evpipe [0] = -1;
1086 fd_intern (evfd); 1829 fd_intern (evfd); /* doing it twice doesn't hurt */
1087 ev_io_set (&pipe_w, evfd, EV_READ); 1830 ev_io_set (&pipe_w, evfd, EV_READ);
1088 } 1831 }
1089 else 1832 else
1090#endif 1833# endif
1091 { 1834 {
1092 while (pipe (evpipe)) 1835 while (pipe (evpipe))
1093 ev_syserr ("(libev) error creating signal/async pipe"); 1836 ev_syserr ("(libev) error creating signal/async pipe");
1094 1837
1095 fd_intern (evpipe [0]); 1838 fd_intern (evpipe [0]);
… …
1100 ev_io_start (EV_A_ &pipe_w); 1843 ev_io_start (EV_A_ &pipe_w);
1101 ev_unref (EV_A); /* watcher should not keep loop alive */ 1844 ev_unref (EV_A); /* watcher should not keep loop alive */
1102 } 1845 }
1103} 1846}
1104 1847
1105inline_size void 1848inline_speed void
1106evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1849evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1107{ 1850{
1108 if (!*flag) 1851 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1852
1853 if (expect_true (*flag))
1854 return;
1855
1856 *flag = 1;
1857
1858 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1859
1860 pipe_write_skipped = 1;
1861
1862 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1863
1864 if (pipe_write_wanted)
1109 { 1865 {
1866 int old_errno;
1867
1868 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1869
1110 int old_errno = errno; /* save errno because write might clobber it */ 1870 old_errno = errno; /* save errno because write will clobber it */
1111
1112 *flag = 1;
1113 1871
1114#if EV_USE_EVENTFD 1872#if EV_USE_EVENTFD
1115 if (evfd >= 0) 1873 if (evfd >= 0)
1116 { 1874 {
1117 uint64_t counter = 1; 1875 uint64_t counter = 1;
1118 write (evfd, &counter, sizeof (uint64_t)); 1876 write (evfd, &counter, sizeof (uint64_t));
1119 } 1877 }
1120 else 1878 else
1121#endif 1879#endif
1880 {
1881#ifdef _WIN32
1882 WSABUF buf;
1883 DWORD sent;
1884 buf.buf = &buf;
1885 buf.len = 1;
1886 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1887#else
1122 write (evpipe [1], &old_errno, 1); 1888 write (evpipe [1], &(evpipe [1]), 1);
1889#endif
1890 }
1123 1891
1124 errno = old_errno; 1892 errno = old_errno;
1125 } 1893 }
1126} 1894}
1127 1895
1128/* called whenever the libev signal pipe */ 1896/* called whenever the libev signal pipe */
1129/* got some events (signal, async) */ 1897/* got some events (signal, async) */
1130static void 1898static void
1131pipecb (EV_P_ ev_io *iow, int revents) 1899pipecb (EV_P_ ev_io *iow, int revents)
1132{ 1900{
1901 int i;
1902
1903 if (revents & EV_READ)
1904 {
1133#if EV_USE_EVENTFD 1905#if EV_USE_EVENTFD
1134 if (evfd >= 0) 1906 if (evfd >= 0)
1135 { 1907 {
1136 uint64_t counter; 1908 uint64_t counter;
1137 read (evfd, &counter, sizeof (uint64_t)); 1909 read (evfd, &counter, sizeof (uint64_t));
1138 } 1910 }
1139 else 1911 else
1140#endif 1912#endif
1141 { 1913 {
1142 char dummy; 1914 char dummy[4];
1915#ifdef _WIN32
1916 WSABUF buf;
1917 DWORD recvd;
1918 buf.buf = dummy;
1919 buf.len = sizeof (dummy);
1920 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0);
1921#else
1143 read (evpipe [0], &dummy, 1); 1922 read (evpipe [0], &dummy, sizeof (dummy));
1923#endif
1924 }
1925 }
1926
1927 pipe_write_skipped = 0;
1928
1929 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1930
1931#if EV_SIGNAL_ENABLE
1932 if (sig_pending)
1144 } 1933 {
1934 sig_pending = 0;
1145 1935
1146 if (gotsig && ev_is_default_loop (EV_A)) 1936 ECB_MEMORY_FENCE_RELEASE;
1147 {
1148 int signum;
1149 gotsig = 0;
1150 1937
1151 for (signum = signalmax; signum--; ) 1938 for (i = EV_NSIG - 1; i--; )
1152 if (signals [signum].gotsig) 1939 if (expect_false (signals [i].pending))
1153 ev_feed_signal_event (EV_A_ signum + 1); 1940 ev_feed_signal_event (EV_A_ i + 1);
1154 } 1941 }
1942#endif
1155 1943
1156#if EV_ASYNC_ENABLE 1944#if EV_ASYNC_ENABLE
1157 if (gotasync) 1945 if (async_pending)
1158 { 1946 {
1159 int i; 1947 async_pending = 0;
1160 gotasync = 0; 1948
1949 ECB_MEMORY_FENCE_RELEASE;
1161 1950
1162 for (i = asynccnt; i--; ) 1951 for (i = asynccnt; i--; )
1163 if (asyncs [i]->sent) 1952 if (asyncs [i]->sent)
1164 { 1953 {
1165 asyncs [i]->sent = 0; 1954 asyncs [i]->sent = 0;
… …
1169#endif 1958#endif
1170} 1959}
1171 1960
1172/*****************************************************************************/ 1961/*****************************************************************************/
1173 1962
1963void
1964ev_feed_signal (int signum) EV_THROW
1965{
1966#if EV_MULTIPLICITY
1967 EV_P = signals [signum - 1].loop;
1968
1969 if (!EV_A)
1970 return;
1971#endif
1972
1973 if (!ev_active (&pipe_w))
1974 return;
1975
1976 signals [signum - 1].pending = 1;
1977 evpipe_write (EV_A_ &sig_pending);
1978}
1979
1174static void 1980static void
1175ev_sighandler (int signum) 1981ev_sighandler (int signum)
1176{ 1982{
1983#ifdef _WIN32
1984 signal (signum, ev_sighandler);
1985#endif
1986
1987 ev_feed_signal (signum);
1988}
1989
1990void noinline
1991ev_feed_signal_event (EV_P_ int signum) EV_THROW
1992{
1993 WL w;
1994
1995 if (expect_false (signum <= 0 || signum > EV_NSIG))
1996 return;
1997
1998 --signum;
1999
1177#if EV_MULTIPLICITY 2000#if EV_MULTIPLICITY
1178 struct ev_loop *loop = &default_loop_struct; 2001 /* it is permissible to try to feed a signal to the wrong loop */
1179#endif 2002 /* or, likely more useful, feeding a signal nobody is waiting for */
1180 2003
1181#if _WIN32 2004 if (expect_false (signals [signum].loop != EV_A))
1182 signal (signum, ev_sighandler);
1183#endif
1184
1185 signals [signum - 1].gotsig = 1;
1186 evpipe_write (EV_A_ &gotsig);
1187}
1188
1189void noinline
1190ev_feed_signal_event (EV_P_ int signum)
1191{
1192 WL w;
1193
1194#if EV_MULTIPLICITY
1195 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1196#endif
1197
1198 --signum;
1199
1200 if (signum < 0 || signum >= signalmax)
1201 return; 2005 return;
2006#endif
1202 2007
1203 signals [signum].gotsig = 0; 2008 signals [signum].pending = 0;
1204 2009
1205 for (w = signals [signum].head; w; w = w->next) 2010 for (w = signals [signum].head; w; w = w->next)
1206 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2011 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1207} 2012}
1208 2013
2014#if EV_USE_SIGNALFD
2015static void
2016sigfdcb (EV_P_ ev_io *iow, int revents)
2017{
2018 struct signalfd_siginfo si[2], *sip; /* these structs are big */
2019
2020 for (;;)
2021 {
2022 ssize_t res = read (sigfd, si, sizeof (si));
2023
2024 /* not ISO-C, as res might be -1, but works with SuS */
2025 for (sip = si; (char *)sip < (char *)si + res; ++sip)
2026 ev_feed_signal_event (EV_A_ sip->ssi_signo);
2027
2028 if (res < (ssize_t)sizeof (si))
2029 break;
2030 }
2031}
2032#endif
2033
2034#endif
2035
1209/*****************************************************************************/ 2036/*****************************************************************************/
1210 2037
2038#if EV_CHILD_ENABLE
1211static WL childs [EV_PID_HASHSIZE]; 2039static WL childs [EV_PID_HASHSIZE];
1212
1213#ifndef _WIN32
1214 2040
1215static ev_signal childev; 2041static ev_signal childev;
1216 2042
1217#ifndef WIFCONTINUED 2043#ifndef WIFCONTINUED
1218# define WIFCONTINUED(status) 0 2044# define WIFCONTINUED(status) 0
… …
1223child_reap (EV_P_ int chain, int pid, int status) 2049child_reap (EV_P_ int chain, int pid, int status)
1224{ 2050{
1225 ev_child *w; 2051 ev_child *w;
1226 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2052 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1227 2053
1228 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2054 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1229 { 2055 {
1230 if ((w->pid == pid || !w->pid) 2056 if ((w->pid == pid || !w->pid)
1231 && (!traced || (w->flags & 1))) 2057 && (!traced || (w->flags & 1)))
1232 { 2058 {
1233 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2059 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1258 /* make sure we are called again until all children have been reaped */ 2084 /* make sure we are called again until all children have been reaped */
1259 /* we need to do it this way so that the callback gets called before we continue */ 2085 /* we need to do it this way so that the callback gets called before we continue */
1260 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2086 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1261 2087
1262 child_reap (EV_A_ pid, pid, status); 2088 child_reap (EV_A_ pid, pid, status);
1263 if (EV_PID_HASHSIZE > 1) 2089 if ((EV_PID_HASHSIZE) > 1)
1264 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2090 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1265} 2091}
1266 2092
1267#endif 2093#endif
1268 2094
1269/*****************************************************************************/ 2095/*****************************************************************************/
1270 2096
2097#if EV_USE_IOCP
2098# include "ev_iocp.c"
2099#endif
1271#if EV_USE_PORT 2100#if EV_USE_PORT
1272# include "ev_port.c" 2101# include "ev_port.c"
1273#endif 2102#endif
1274#if EV_USE_KQUEUE 2103#if EV_USE_KQUEUE
1275# include "ev_kqueue.c" 2104# include "ev_kqueue.c"
… …
1282#endif 2111#endif
1283#if EV_USE_SELECT 2112#if EV_USE_SELECT
1284# include "ev_select.c" 2113# include "ev_select.c"
1285#endif 2114#endif
1286 2115
1287int 2116int ecb_cold
1288ev_version_major (void) 2117ev_version_major (void) EV_THROW
1289{ 2118{
1290 return EV_VERSION_MAJOR; 2119 return EV_VERSION_MAJOR;
1291} 2120}
1292 2121
1293int 2122int ecb_cold
1294ev_version_minor (void) 2123ev_version_minor (void) EV_THROW
1295{ 2124{
1296 return EV_VERSION_MINOR; 2125 return EV_VERSION_MINOR;
1297} 2126}
1298 2127
1299/* return true if we are running with elevated privileges and should ignore env variables */ 2128/* return true if we are running with elevated privileges and should ignore env variables */
1300int inline_size 2129int inline_size ecb_cold
1301enable_secure (void) 2130enable_secure (void)
1302{ 2131{
1303#ifdef _WIN32 2132#ifdef _WIN32
1304 return 0; 2133 return 0;
1305#else 2134#else
1306 return getuid () != geteuid () 2135 return getuid () != geteuid ()
1307 || getgid () != getegid (); 2136 || getgid () != getegid ();
1308#endif 2137#endif
1309} 2138}
1310 2139
1311unsigned int 2140unsigned int ecb_cold
1312ev_supported_backends (void) 2141ev_supported_backends (void) EV_THROW
1313{ 2142{
1314 unsigned int flags = 0; 2143 unsigned int flags = 0;
1315 2144
1316 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2145 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1317 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2146 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1320 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2149 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1321 2150
1322 return flags; 2151 return flags;
1323} 2152}
1324 2153
1325unsigned int 2154unsigned int ecb_cold
1326ev_recommended_backends (void) 2155ev_recommended_backends (void) EV_THROW
1327{ 2156{
1328 unsigned int flags = ev_supported_backends (); 2157 unsigned int flags = ev_supported_backends ();
1329 2158
1330#ifndef __NetBSD__ 2159#ifndef __NetBSD__
1331 /* kqueue is borked on everything but netbsd apparently */ 2160 /* kqueue is borked on everything but netbsd apparently */
… …
1335#ifdef __APPLE__ 2164#ifdef __APPLE__
1336 /* only select works correctly on that "unix-certified" platform */ 2165 /* only select works correctly on that "unix-certified" platform */
1337 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2166 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1338 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2167 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1339#endif 2168#endif
2169#ifdef __FreeBSD__
2170 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2171#endif
1340 2172
1341 return flags; 2173 return flags;
1342} 2174}
1343 2175
2176unsigned int ecb_cold
2177ev_embeddable_backends (void) EV_THROW
2178{
2179 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2180
2181 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2182 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2183 flags &= ~EVBACKEND_EPOLL;
2184
2185 return flags;
2186}
2187
1344unsigned int 2188unsigned int
1345ev_embeddable_backends (void) 2189ev_backend (EV_P) EV_THROW
1346{ 2190{
1347 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2191 return backend;
1348
1349 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1350 /* please fix it and tell me how to detect the fix */
1351 flags &= ~EVBACKEND_EPOLL;
1352
1353 return flags;
1354} 2192}
1355 2193
2194#if EV_FEATURE_API
1356unsigned int 2195unsigned int
1357ev_backend (EV_P) 2196ev_iteration (EV_P) EV_THROW
1358{ 2197{
1359 return backend; 2198 return loop_count;
1360} 2199}
1361 2200
1362unsigned int 2201unsigned int
1363ev_loop_count (EV_P) 2202ev_depth (EV_P) EV_THROW
1364{
1365 return loop_count;
1366}
1367
1368unsigned int
1369ev_loop_depth (EV_P)
1370{ 2203{
1371 return loop_depth; 2204 return loop_depth;
1372} 2205}
1373 2206
1374void 2207void
1375ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2208ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1376{ 2209{
1377 io_blocktime = interval; 2210 io_blocktime = interval;
1378} 2211}
1379 2212
1380void 2213void
1381ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2214ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1382{ 2215{
1383 timeout_blocktime = interval; 2216 timeout_blocktime = interval;
1384} 2217}
1385 2218
2219void
2220ev_set_userdata (EV_P_ void *data) EV_THROW
2221{
2222 userdata = data;
2223}
2224
2225void *
2226ev_userdata (EV_P) EV_THROW
2227{
2228 return userdata;
2229}
2230
2231void
2232ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2233{
2234 invoke_cb = invoke_pending_cb;
2235}
2236
2237void
2238ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2239{
2240 release_cb = release;
2241 acquire_cb = acquire;
2242}
2243#endif
2244
1386/* initialise a loop structure, must be zero-initialised */ 2245/* initialise a loop structure, must be zero-initialised */
1387static void noinline 2246static void noinline ecb_cold
1388loop_init (EV_P_ unsigned int flags) 2247loop_init (EV_P_ unsigned int flags) EV_THROW
1389{ 2248{
1390 if (!backend) 2249 if (!backend)
1391 { 2250 {
2251 origflags = flags;
2252
1392#if EV_USE_REALTIME 2253#if EV_USE_REALTIME
1393 if (!have_realtime) 2254 if (!have_realtime)
1394 { 2255 {
1395 struct timespec ts; 2256 struct timespec ts;
1396 2257
… …
1407 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2268 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1408 have_monotonic = 1; 2269 have_monotonic = 1;
1409 } 2270 }
1410#endif 2271#endif
1411 2272
1412 ev_rt_now = ev_time ();
1413 mn_now = get_clock ();
1414 now_floor = mn_now;
1415 rtmn_diff = ev_rt_now - mn_now;
1416
1417 io_blocktime = 0.;
1418 timeout_blocktime = 0.;
1419 backend = 0;
1420 backend_fd = -1;
1421 gotasync = 0;
1422#if EV_USE_INOTIFY
1423 fs_fd = -2;
1424#endif
1425
1426 /* pid check not overridable via env */ 2273 /* pid check not overridable via env */
1427#ifndef _WIN32 2274#ifndef _WIN32
1428 if (flags & EVFLAG_FORKCHECK) 2275 if (flags & EVFLAG_FORKCHECK)
1429 curpid = getpid (); 2276 curpid = getpid ();
1430#endif 2277#endif
… …
1432 if (!(flags & EVFLAG_NOENV) 2279 if (!(flags & EVFLAG_NOENV)
1433 && !enable_secure () 2280 && !enable_secure ()
1434 && getenv ("LIBEV_FLAGS")) 2281 && getenv ("LIBEV_FLAGS"))
1435 flags = atoi (getenv ("LIBEV_FLAGS")); 2282 flags = atoi (getenv ("LIBEV_FLAGS"));
1436 2283
1437 if (!(flags & 0x0000ffffU)) 2284 ev_rt_now = ev_time ();
2285 mn_now = get_clock ();
2286 now_floor = mn_now;
2287 rtmn_diff = ev_rt_now - mn_now;
2288#if EV_FEATURE_API
2289 invoke_cb = ev_invoke_pending;
2290#endif
2291
2292 io_blocktime = 0.;
2293 timeout_blocktime = 0.;
2294 backend = 0;
2295 backend_fd = -1;
2296 sig_pending = 0;
2297#if EV_ASYNC_ENABLE
2298 async_pending = 0;
2299#endif
2300 pipe_write_skipped = 0;
2301 pipe_write_wanted = 0;
2302#if EV_USE_INOTIFY
2303 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2304#endif
2305#if EV_USE_SIGNALFD
2306 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2307#endif
2308
2309 if (!(flags & EVBACKEND_MASK))
1438 flags |= ev_recommended_backends (); 2310 flags |= ev_recommended_backends ();
1439 2311
2312#if EV_USE_IOCP
2313 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2314#endif
1440#if EV_USE_PORT 2315#if EV_USE_PORT
1441 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2316 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1442#endif 2317#endif
1443#if EV_USE_KQUEUE 2318#if EV_USE_KQUEUE
1444 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2319 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1453 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2328 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1454#endif 2329#endif
1455 2330
1456 ev_prepare_init (&pending_w, pendingcb); 2331 ev_prepare_init (&pending_w, pendingcb);
1457 2332
2333#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1458 ev_init (&pipe_w, pipecb); 2334 ev_init (&pipe_w, pipecb);
1459 ev_set_priority (&pipe_w, EV_MAXPRI); 2335 ev_set_priority (&pipe_w, EV_MAXPRI);
2336#endif
1460 } 2337 }
1461} 2338}
1462 2339
1463/* free up a loop structure */ 2340/* free up a loop structure */
1464static void noinline 2341void ecb_cold
1465loop_destroy (EV_P) 2342ev_loop_destroy (EV_P)
1466{ 2343{
1467 int i; 2344 int i;
1468 2345
2346#if EV_MULTIPLICITY
2347 /* mimic free (0) */
2348 if (!EV_A)
2349 return;
2350#endif
2351
2352#if EV_CLEANUP_ENABLE
2353 /* queue cleanup watchers (and execute them) */
2354 if (expect_false (cleanupcnt))
2355 {
2356 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2357 EV_INVOKE_PENDING;
2358 }
2359#endif
2360
2361#if EV_CHILD_ENABLE
2362 if (ev_is_active (&childev))
2363 {
2364 ev_ref (EV_A); /* child watcher */
2365 ev_signal_stop (EV_A_ &childev);
2366 }
2367#endif
2368
1469 if (ev_is_active (&pipe_w)) 2369 if (ev_is_active (&pipe_w))
1470 { 2370 {
1471 ev_ref (EV_A); /* signal watcher */ 2371 /*ev_ref (EV_A);*/
1472 ev_io_stop (EV_A_ &pipe_w); 2372 /*ev_io_stop (EV_A_ &pipe_w);*/
1473 2373
1474#if EV_USE_EVENTFD 2374#if EV_USE_EVENTFD
1475 if (evfd >= 0) 2375 if (evfd >= 0)
1476 close (evfd); 2376 close (evfd);
1477#endif 2377#endif
1478 2378
1479 if (evpipe [0] >= 0) 2379 if (evpipe [0] >= 0)
1480 { 2380 {
1481 close (evpipe [0]); 2381 EV_WIN32_CLOSE_FD (evpipe [0]);
1482 close (evpipe [1]); 2382 EV_WIN32_CLOSE_FD (evpipe [1]);
1483 } 2383 }
1484 } 2384 }
2385
2386#if EV_USE_SIGNALFD
2387 if (ev_is_active (&sigfd_w))
2388 close (sigfd);
2389#endif
1485 2390
1486#if EV_USE_INOTIFY 2391#if EV_USE_INOTIFY
1487 if (fs_fd >= 0) 2392 if (fs_fd >= 0)
1488 close (fs_fd); 2393 close (fs_fd);
1489#endif 2394#endif
1490 2395
1491 if (backend_fd >= 0) 2396 if (backend_fd >= 0)
1492 close (backend_fd); 2397 close (backend_fd);
1493 2398
2399#if EV_USE_IOCP
2400 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2401#endif
1494#if EV_USE_PORT 2402#if EV_USE_PORT
1495 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2403 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1496#endif 2404#endif
1497#if EV_USE_KQUEUE 2405#if EV_USE_KQUEUE
1498 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2406 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1513#if EV_IDLE_ENABLE 2421#if EV_IDLE_ENABLE
1514 array_free (idle, [i]); 2422 array_free (idle, [i]);
1515#endif 2423#endif
1516 } 2424 }
1517 2425
1518 ev_free (anfds); anfdmax = 0; 2426 ev_free (anfds); anfds = 0; anfdmax = 0;
1519 2427
1520 /* have to use the microsoft-never-gets-it-right macro */ 2428 /* have to use the microsoft-never-gets-it-right macro */
1521 array_free (rfeed, EMPTY); 2429 array_free (rfeed, EMPTY);
1522 array_free (fdchange, EMPTY); 2430 array_free (fdchange, EMPTY);
1523 array_free (timer, EMPTY); 2431 array_free (timer, EMPTY);
… …
1525 array_free (periodic, EMPTY); 2433 array_free (periodic, EMPTY);
1526#endif 2434#endif
1527#if EV_FORK_ENABLE 2435#if EV_FORK_ENABLE
1528 array_free (fork, EMPTY); 2436 array_free (fork, EMPTY);
1529#endif 2437#endif
2438#if EV_CLEANUP_ENABLE
2439 array_free (cleanup, EMPTY);
2440#endif
1530 array_free (prepare, EMPTY); 2441 array_free (prepare, EMPTY);
1531 array_free (check, EMPTY); 2442 array_free (check, EMPTY);
1532#if EV_ASYNC_ENABLE 2443#if EV_ASYNC_ENABLE
1533 array_free (async, EMPTY); 2444 array_free (async, EMPTY);
1534#endif 2445#endif
1535 2446
1536 backend = 0; 2447 backend = 0;
2448
2449#if EV_MULTIPLICITY
2450 if (ev_is_default_loop (EV_A))
2451#endif
2452 ev_default_loop_ptr = 0;
2453#if EV_MULTIPLICITY
2454 else
2455 ev_free (EV_A);
2456#endif
1537} 2457}
1538 2458
1539#if EV_USE_INOTIFY 2459#if EV_USE_INOTIFY
1540inline_size void infy_fork (EV_P); 2460inline_size void infy_fork (EV_P);
1541#endif 2461#endif
… …
1556 infy_fork (EV_A); 2476 infy_fork (EV_A);
1557#endif 2477#endif
1558 2478
1559 if (ev_is_active (&pipe_w)) 2479 if (ev_is_active (&pipe_w))
1560 { 2480 {
1561 /* this "locks" the handlers against writing to the pipe */ 2481 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1562 /* while we modify the fd vars */
1563 gotsig = 1;
1564#if EV_ASYNC_ENABLE
1565 gotasync = 1;
1566#endif
1567 2482
1568 ev_ref (EV_A); 2483 ev_ref (EV_A);
1569 ev_io_stop (EV_A_ &pipe_w); 2484 ev_io_stop (EV_A_ &pipe_w);
1570 2485
1571#if EV_USE_EVENTFD 2486#if EV_USE_EVENTFD
… …
1573 close (evfd); 2488 close (evfd);
1574#endif 2489#endif
1575 2490
1576 if (evpipe [0] >= 0) 2491 if (evpipe [0] >= 0)
1577 { 2492 {
1578 close (evpipe [0]); 2493 EV_WIN32_CLOSE_FD (evpipe [0]);
1579 close (evpipe [1]); 2494 EV_WIN32_CLOSE_FD (evpipe [1]);
1580 } 2495 }
1581 2496
2497#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1582 evpipe_init (EV_A); 2498 evpipe_init (EV_A);
1583 /* now iterate over everything, in case we missed something */ 2499 /* now iterate over everything, in case we missed something */
1584 pipecb (EV_A_ &pipe_w, EV_READ); 2500 pipecb (EV_A_ &pipe_w, EV_READ);
2501#endif
1585 } 2502 }
1586 2503
1587 postfork = 0; 2504 postfork = 0;
1588} 2505}
1589 2506
1590#if EV_MULTIPLICITY 2507#if EV_MULTIPLICITY
1591 2508
1592struct ev_loop * 2509struct ev_loop * ecb_cold
1593ev_loop_new (unsigned int flags) 2510ev_loop_new (unsigned int flags) EV_THROW
1594{ 2511{
1595 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2512 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1596 2513
1597 memset (loop, 0, sizeof (struct ev_loop)); 2514 memset (EV_A, 0, sizeof (struct ev_loop));
1598
1599 loop_init (EV_A_ flags); 2515 loop_init (EV_A_ flags);
1600 2516
1601 if (ev_backend (EV_A)) 2517 if (ev_backend (EV_A))
1602 return loop; 2518 return EV_A;
1603 2519
2520 ev_free (EV_A);
1604 return 0; 2521 return 0;
1605} 2522}
1606 2523
1607void 2524#endif /* multiplicity */
1608ev_loop_destroy (EV_P)
1609{
1610 loop_destroy (EV_A);
1611 ev_free (loop);
1612}
1613
1614void
1615ev_loop_fork (EV_P)
1616{
1617 postfork = 1; /* must be in line with ev_default_fork */
1618}
1619 2525
1620#if EV_VERIFY 2526#if EV_VERIFY
1621static void noinline 2527static void noinline ecb_cold
1622verify_watcher (EV_P_ W w) 2528verify_watcher (EV_P_ W w)
1623{ 2529{
1624 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2530 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1625 2531
1626 if (w->pending) 2532 if (w->pending)
1627 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2533 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1628} 2534}
1629 2535
1630static void noinline 2536static void noinline ecb_cold
1631verify_heap (EV_P_ ANHE *heap, int N) 2537verify_heap (EV_P_ ANHE *heap, int N)
1632{ 2538{
1633 int i; 2539 int i;
1634 2540
1635 for (i = HEAP0; i < N + HEAP0; ++i) 2541 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1640 2546
1641 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2547 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1642 } 2548 }
1643} 2549}
1644 2550
1645static void noinline 2551static void noinline ecb_cold
1646array_verify (EV_P_ W *ws, int cnt) 2552array_verify (EV_P_ W *ws, int cnt)
1647{ 2553{
1648 while (cnt--) 2554 while (cnt--)
1649 { 2555 {
1650 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2556 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1651 verify_watcher (EV_A_ ws [cnt]); 2557 verify_watcher (EV_A_ ws [cnt]);
1652 } 2558 }
1653} 2559}
1654#endif 2560#endif
1655 2561
1656void 2562#if EV_FEATURE_API
1657ev_loop_verify (EV_P) 2563void ecb_cold
2564ev_verify (EV_P) EV_THROW
1658{ 2565{
1659#if EV_VERIFY 2566#if EV_VERIFY
1660 int i; 2567 int i, j;
1661 WL w; 2568 WL w, w2;
1662 2569
1663 assert (activecnt >= -1); 2570 assert (activecnt >= -1);
1664 2571
1665 assert (fdchangemax >= fdchangecnt); 2572 assert (fdchangemax >= fdchangecnt);
1666 for (i = 0; i < fdchangecnt; ++i) 2573 for (i = 0; i < fdchangecnt; ++i)
1667 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2574 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1668 2575
1669 assert (anfdmax >= 0); 2576 assert (anfdmax >= 0);
1670 for (i = 0; i < anfdmax; ++i) 2577 for (i = j = 0; i < anfdmax; ++i)
1671 for (w = anfds [i].head; w; w = w->next) 2578 for (w = w2 = anfds [i].head; w; w = w->next)
1672 { 2579 {
1673 verify_watcher (EV_A_ (W)w); 2580 verify_watcher (EV_A_ (W)w);
2581
2582 if (++j & 1)
2583 w2 = w2->next;
2584
2585 assert (("libev: io watcher list contains a loop", w != w2));
1674 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2586 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1675 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2587 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1676 } 2588 }
1677 2589
1678 assert (timermax >= timercnt); 2590 assert (timermax >= timercnt);
… …
1696#if EV_FORK_ENABLE 2608#if EV_FORK_ENABLE
1697 assert (forkmax >= forkcnt); 2609 assert (forkmax >= forkcnt);
1698 array_verify (EV_A_ (W *)forks, forkcnt); 2610 array_verify (EV_A_ (W *)forks, forkcnt);
1699#endif 2611#endif
1700 2612
2613#if EV_CLEANUP_ENABLE
2614 assert (cleanupmax >= cleanupcnt);
2615 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2616#endif
2617
1701#if EV_ASYNC_ENABLE 2618#if EV_ASYNC_ENABLE
1702 assert (asyncmax >= asynccnt); 2619 assert (asyncmax >= asynccnt);
1703 array_verify (EV_A_ (W *)asyncs, asynccnt); 2620 array_verify (EV_A_ (W *)asyncs, asynccnt);
1704#endif 2621#endif
1705 2622
2623#if EV_PREPARE_ENABLE
1706 assert (preparemax >= preparecnt); 2624 assert (preparemax >= preparecnt);
1707 array_verify (EV_A_ (W *)prepares, preparecnt); 2625 array_verify (EV_A_ (W *)prepares, preparecnt);
2626#endif
1708 2627
2628#if EV_CHECK_ENABLE
1709 assert (checkmax >= checkcnt); 2629 assert (checkmax >= checkcnt);
1710 array_verify (EV_A_ (W *)checks, checkcnt); 2630 array_verify (EV_A_ (W *)checks, checkcnt);
2631#endif
1711 2632
1712# if 0 2633# if 0
2634#if EV_CHILD_ENABLE
1713 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2635 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1714 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2636 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2637#endif
1715# endif 2638# endif
1716#endif 2639#endif
1717} 2640}
1718 2641#endif
1719#endif /* multiplicity */
1720 2642
1721#if EV_MULTIPLICITY 2643#if EV_MULTIPLICITY
1722struct ev_loop * 2644struct ev_loop * ecb_cold
1723ev_default_loop_init (unsigned int flags)
1724#else 2645#else
1725int 2646int
2647#endif
1726ev_default_loop (unsigned int flags) 2648ev_default_loop (unsigned int flags) EV_THROW
1727#endif
1728{ 2649{
1729 if (!ev_default_loop_ptr) 2650 if (!ev_default_loop_ptr)
1730 { 2651 {
1731#if EV_MULTIPLICITY 2652#if EV_MULTIPLICITY
1732 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2653 EV_P = ev_default_loop_ptr = &default_loop_struct;
1733#else 2654#else
1734 ev_default_loop_ptr = 1; 2655 ev_default_loop_ptr = 1;
1735#endif 2656#endif
1736 2657
1737 loop_init (EV_A_ flags); 2658 loop_init (EV_A_ flags);
1738 2659
1739 if (ev_backend (EV_A)) 2660 if (ev_backend (EV_A))
1740 { 2661 {
1741#ifndef _WIN32 2662#if EV_CHILD_ENABLE
1742 ev_signal_init (&childev, childcb, SIGCHLD); 2663 ev_signal_init (&childev, childcb, SIGCHLD);
1743 ev_set_priority (&childev, EV_MAXPRI); 2664 ev_set_priority (&childev, EV_MAXPRI);
1744 ev_signal_start (EV_A_ &childev); 2665 ev_signal_start (EV_A_ &childev);
1745 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2666 ev_unref (EV_A); /* child watcher should not keep loop alive */
1746#endif 2667#endif
… …
1751 2672
1752 return ev_default_loop_ptr; 2673 return ev_default_loop_ptr;
1753} 2674}
1754 2675
1755void 2676void
1756ev_default_destroy (void) 2677ev_loop_fork (EV_P) EV_THROW
1757{ 2678{
1758#if EV_MULTIPLICITY
1759 struct ev_loop *loop = ev_default_loop_ptr;
1760#endif
1761
1762 ev_default_loop_ptr = 0;
1763
1764#ifndef _WIN32
1765 ev_ref (EV_A); /* child watcher */
1766 ev_signal_stop (EV_A_ &childev);
1767#endif
1768
1769 loop_destroy (EV_A);
1770}
1771
1772void
1773ev_default_fork (void)
1774{
1775#if EV_MULTIPLICITY
1776 struct ev_loop *loop = ev_default_loop_ptr;
1777#endif
1778
1779 postfork = 1; /* must be in line with ev_loop_fork */ 2679 postfork = 1; /* must be in line with ev_default_fork */
1780} 2680}
1781 2681
1782/*****************************************************************************/ 2682/*****************************************************************************/
1783 2683
1784void 2684void
1785ev_invoke (EV_P_ void *w, int revents) 2685ev_invoke (EV_P_ void *w, int revents)
1786{ 2686{
1787 EV_CB_INVOKE ((W)w, revents); 2687 EV_CB_INVOKE ((W)w, revents);
1788} 2688}
1789 2689
1790inline_speed void 2690unsigned int
1791call_pending (EV_P) 2691ev_pending_count (EV_P) EV_THROW
1792{ 2692{
1793 int pri; 2693 int pri;
2694 unsigned int count = 0;
1794 2695
1795 for (pri = NUMPRI; pri--; ) 2696 for (pri = NUMPRI; pri--; )
2697 count += pendingcnt [pri];
2698
2699 return count;
2700}
2701
2702void noinline
2703ev_invoke_pending (EV_P)
2704{
2705 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1796 while (pendingcnt [pri]) 2706 while (pendingcnt [pendingpri])
1797 { 2707 {
1798 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2708 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1799
1800 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1801 /* ^ this is no longer true, as pending_w could be here */
1802 2709
1803 p->w->pending = 0; 2710 p->w->pending = 0;
1804 EV_CB_INVOKE (p->w, p->events); 2711 EV_CB_INVOKE (p->w, p->events);
1805 EV_FREQUENT_CHECK; 2712 EV_FREQUENT_CHECK;
1806 } 2713 }
… …
1863 EV_FREQUENT_CHECK; 2770 EV_FREQUENT_CHECK;
1864 feed_reverse (EV_A_ (W)w); 2771 feed_reverse (EV_A_ (W)w);
1865 } 2772 }
1866 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2773 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1867 2774
1868 feed_reverse_done (EV_A_ EV_TIMEOUT); 2775 feed_reverse_done (EV_A_ EV_TIMER);
1869 } 2776 }
1870} 2777}
1871 2778
1872#if EV_PERIODIC_ENABLE 2779#if EV_PERIODIC_ENABLE
2780
2781static void noinline
2782periodic_recalc (EV_P_ ev_periodic *w)
2783{
2784 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2785 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2786
2787 /* the above almost always errs on the low side */
2788 while (at <= ev_rt_now)
2789 {
2790 ev_tstamp nat = at + w->interval;
2791
2792 /* when resolution fails us, we use ev_rt_now */
2793 if (expect_false (nat == at))
2794 {
2795 at = ev_rt_now;
2796 break;
2797 }
2798
2799 at = nat;
2800 }
2801
2802 ev_at (w) = at;
2803}
2804
1873/* make periodics pending */ 2805/* make periodics pending */
1874inline_size void 2806inline_size void
1875periodics_reify (EV_P) 2807periodics_reify (EV_P)
1876{ 2808{
1877 EV_FREQUENT_CHECK; 2809 EV_FREQUENT_CHECK;
… …
1896 ANHE_at_cache (periodics [HEAP0]); 2828 ANHE_at_cache (periodics [HEAP0]);
1897 downheap (periodics, periodiccnt, HEAP0); 2829 downheap (periodics, periodiccnt, HEAP0);
1898 } 2830 }
1899 else if (w->interval) 2831 else if (w->interval)
1900 { 2832 {
1901 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2833 periodic_recalc (EV_A_ w);
1902 /* if next trigger time is not sufficiently in the future, put it there */
1903 /* this might happen because of floating point inexactness */
1904 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1905 {
1906 ev_at (w) += w->interval;
1907
1908 /* if interval is unreasonably low we might still have a time in the past */
1909 /* so correct this. this will make the periodic very inexact, but the user */
1910 /* has effectively asked to get triggered more often than possible */
1911 if (ev_at (w) < ev_rt_now)
1912 ev_at (w) = ev_rt_now;
1913 }
1914
1915 ANHE_at_cache (periodics [HEAP0]); 2834 ANHE_at_cache (periodics [HEAP0]);
1916 downheap (periodics, periodiccnt, HEAP0); 2835 downheap (periodics, periodiccnt, HEAP0);
1917 } 2836 }
1918 else 2837 else
1919 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2838 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1926 feed_reverse_done (EV_A_ EV_PERIODIC); 2845 feed_reverse_done (EV_A_ EV_PERIODIC);
1927 } 2846 }
1928} 2847}
1929 2848
1930/* simply recalculate all periodics */ 2849/* simply recalculate all periodics */
1931/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2850/* TODO: maybe ensure that at least one event happens when jumping forward? */
1932static void noinline 2851static void noinline ecb_cold
1933periodics_reschedule (EV_P) 2852periodics_reschedule (EV_P)
1934{ 2853{
1935 int i; 2854 int i;
1936 2855
1937 /* adjust periodics after time jump */ 2856 /* adjust periodics after time jump */
… …
1940 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2859 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1941 2860
1942 if (w->reschedule_cb) 2861 if (w->reschedule_cb)
1943 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2862 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1944 else if (w->interval) 2863 else if (w->interval)
1945 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2864 periodic_recalc (EV_A_ w);
1946 2865
1947 ANHE_at_cache (periodics [i]); 2866 ANHE_at_cache (periodics [i]);
1948 } 2867 }
1949 2868
1950 reheap (periodics, periodiccnt); 2869 reheap (periodics, periodiccnt);
1951} 2870}
1952#endif 2871#endif
1953 2872
1954/* adjust all timers by a given offset */ 2873/* adjust all timers by a given offset */
1955static void noinline 2874static void noinline ecb_cold
1956timers_reschedule (EV_P_ ev_tstamp adjust) 2875timers_reschedule (EV_P_ ev_tstamp adjust)
1957{ 2876{
1958 int i; 2877 int i;
1959 2878
1960 for (i = 0; i < timercnt; ++i) 2879 for (i = 0; i < timercnt; ++i)
… …
1964 ANHE_at_cache (*he); 2883 ANHE_at_cache (*he);
1965 } 2884 }
1966} 2885}
1967 2886
1968/* fetch new monotonic and realtime times from the kernel */ 2887/* fetch new monotonic and realtime times from the kernel */
1969/* also detetc if there was a timejump, and act accordingly */ 2888/* also detect if there was a timejump, and act accordingly */
1970inline_speed void 2889inline_speed void
1971time_update (EV_P_ ev_tstamp max_block) 2890time_update (EV_P_ ev_tstamp max_block)
1972{ 2891{
1973#if EV_USE_MONOTONIC 2892#if EV_USE_MONOTONIC
1974 if (expect_true (have_monotonic)) 2893 if (expect_true (have_monotonic))
… …
1997 * doesn't hurt either as we only do this on time-jumps or 2916 * doesn't hurt either as we only do this on time-jumps or
1998 * in the unlikely event of having been preempted here. 2917 * in the unlikely event of having been preempted here.
1999 */ 2918 */
2000 for (i = 4; --i; ) 2919 for (i = 4; --i; )
2001 { 2920 {
2921 ev_tstamp diff;
2002 rtmn_diff = ev_rt_now - mn_now; 2922 rtmn_diff = ev_rt_now - mn_now;
2003 2923
2924 diff = odiff - rtmn_diff;
2925
2004 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2926 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2005 return; /* all is well */ 2927 return; /* all is well */
2006 2928
2007 ev_rt_now = ev_time (); 2929 ev_rt_now = ev_time ();
2008 mn_now = get_clock (); 2930 mn_now = get_clock ();
2009 now_floor = mn_now; 2931 now_floor = mn_now;
… …
2031 2953
2032 mn_now = ev_rt_now; 2954 mn_now = ev_rt_now;
2033 } 2955 }
2034} 2956}
2035 2957
2036void 2958int
2037ev_loop (EV_P_ int flags) 2959ev_run (EV_P_ int flags)
2038{ 2960{
2961#if EV_FEATURE_API
2039 ++loop_depth; 2962 ++loop_depth;
2963#endif
2040 2964
2965 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2966
2041 loop_done = EVUNLOOP_CANCEL; 2967 loop_done = EVBREAK_CANCEL;
2042 2968
2043 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2969 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2044 2970
2045 do 2971 do
2046 { 2972 {
2047#if EV_VERIFY >= 2 2973#if EV_VERIFY >= 2
2048 ev_loop_verify (EV_A); 2974 ev_verify (EV_A);
2049#endif 2975#endif
2050 2976
2051#ifndef _WIN32 2977#ifndef _WIN32
2052 if (expect_false (curpid)) /* penalise the forking check even more */ 2978 if (expect_false (curpid)) /* penalise the forking check even more */
2053 if (expect_false (getpid () != curpid)) 2979 if (expect_false (getpid () != curpid))
… …
2061 /* we might have forked, so queue fork handlers */ 2987 /* we might have forked, so queue fork handlers */
2062 if (expect_false (postfork)) 2988 if (expect_false (postfork))
2063 if (forkcnt) 2989 if (forkcnt)
2064 { 2990 {
2065 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2991 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2066 call_pending (EV_A); 2992 EV_INVOKE_PENDING;
2067 } 2993 }
2068#endif 2994#endif
2069 2995
2996#if EV_PREPARE_ENABLE
2070 /* queue prepare watchers (and execute them) */ 2997 /* queue prepare watchers (and execute them) */
2071 if (expect_false (preparecnt)) 2998 if (expect_false (preparecnt))
2072 { 2999 {
2073 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3000 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2074 call_pending (EV_A); 3001 EV_INVOKE_PENDING;
2075 } 3002 }
3003#endif
3004
3005 if (expect_false (loop_done))
3006 break;
2076 3007
2077 /* we might have forked, so reify kernel state if necessary */ 3008 /* we might have forked, so reify kernel state if necessary */
2078 if (expect_false (postfork)) 3009 if (expect_false (postfork))
2079 loop_fork (EV_A); 3010 loop_fork (EV_A);
2080 3011
… …
2084 /* calculate blocking time */ 3015 /* calculate blocking time */
2085 { 3016 {
2086 ev_tstamp waittime = 0.; 3017 ev_tstamp waittime = 0.;
2087 ev_tstamp sleeptime = 0.; 3018 ev_tstamp sleeptime = 0.;
2088 3019
3020 /* remember old timestamp for io_blocktime calculation */
3021 ev_tstamp prev_mn_now = mn_now;
3022
3023 /* update time to cancel out callback processing overhead */
3024 time_update (EV_A_ 1e100);
3025
3026 /* from now on, we want a pipe-wake-up */
3027 pipe_write_wanted = 1;
3028
3029 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3030
2089 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3031 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2090 { 3032 {
2091 /* remember old timestamp for io_blocktime calculation */
2092 ev_tstamp prev_mn_now = mn_now;
2093
2094 /* update time to cancel out callback processing overhead */
2095 time_update (EV_A_ 1e100);
2096
2097 waittime = MAX_BLOCKTIME; 3033 waittime = MAX_BLOCKTIME;
2098 3034
2099 if (timercnt) 3035 if (timercnt)
2100 { 3036 {
2101 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3037 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2102 if (waittime > to) waittime = to; 3038 if (waittime > to) waittime = to;
2103 } 3039 }
2104 3040
2105#if EV_PERIODIC_ENABLE 3041#if EV_PERIODIC_ENABLE
2106 if (periodiccnt) 3042 if (periodiccnt)
2107 { 3043 {
2108 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3044 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2109 if (waittime > to) waittime = to; 3045 if (waittime > to) waittime = to;
2110 } 3046 }
2111#endif 3047#endif
2112 3048
2113 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3049 /* don't let timeouts decrease the waittime below timeout_blocktime */
2114 if (expect_false (waittime < timeout_blocktime)) 3050 if (expect_false (waittime < timeout_blocktime))
2115 waittime = timeout_blocktime; 3051 waittime = timeout_blocktime;
3052
3053 /* at this point, we NEED to wait, so we have to ensure */
3054 /* to pass a minimum nonzero value to the backend */
3055 if (expect_false (waittime < backend_mintime))
3056 waittime = backend_mintime;
2116 3057
2117 /* extra check because io_blocktime is commonly 0 */ 3058 /* extra check because io_blocktime is commonly 0 */
2118 if (expect_false (io_blocktime)) 3059 if (expect_false (io_blocktime))
2119 { 3060 {
2120 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3061 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2121 3062
2122 if (sleeptime > waittime - backend_fudge) 3063 if (sleeptime > waittime - backend_mintime)
2123 sleeptime = waittime - backend_fudge; 3064 sleeptime = waittime - backend_mintime;
2124 3065
2125 if (expect_true (sleeptime > 0.)) 3066 if (expect_true (sleeptime > 0.))
2126 { 3067 {
2127 ev_sleep (sleeptime); 3068 ev_sleep (sleeptime);
2128 waittime -= sleeptime; 3069 waittime -= sleeptime;
2129 } 3070 }
2130 } 3071 }
2131 } 3072 }
2132 3073
3074#if EV_FEATURE_API
2133 ++loop_count; 3075 ++loop_count;
3076#endif
3077 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2134 backend_poll (EV_A_ waittime); 3078 backend_poll (EV_A_ waittime);
3079 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3080
3081 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3082
3083 if (pipe_write_skipped)
3084 {
3085 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3086 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3087 }
3088
2135 3089
2136 /* update ev_rt_now, do magic */ 3090 /* update ev_rt_now, do magic */
2137 time_update (EV_A_ waittime + sleeptime); 3091 time_update (EV_A_ waittime + sleeptime);
2138 } 3092 }
2139 3093
… …
2146#if EV_IDLE_ENABLE 3100#if EV_IDLE_ENABLE
2147 /* queue idle watchers unless other events are pending */ 3101 /* queue idle watchers unless other events are pending */
2148 idle_reify (EV_A); 3102 idle_reify (EV_A);
2149#endif 3103#endif
2150 3104
3105#if EV_CHECK_ENABLE
2151 /* queue check watchers, to be executed first */ 3106 /* queue check watchers, to be executed first */
2152 if (expect_false (checkcnt)) 3107 if (expect_false (checkcnt))
2153 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3108 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3109#endif
2154 3110
2155 call_pending (EV_A); 3111 EV_INVOKE_PENDING;
2156 } 3112 }
2157 while (expect_true ( 3113 while (expect_true (
2158 activecnt 3114 activecnt
2159 && !loop_done 3115 && !loop_done
2160 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3116 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2161 )); 3117 ));
2162 3118
2163 if (loop_done == EVUNLOOP_ONE) 3119 if (loop_done == EVBREAK_ONE)
2164 loop_done = EVUNLOOP_CANCEL; 3120 loop_done = EVBREAK_CANCEL;
2165 3121
3122#if EV_FEATURE_API
2166 --loop_depth; 3123 --loop_depth;
3124#endif
3125
3126 return activecnt;
2167} 3127}
2168 3128
2169void 3129void
2170ev_unloop (EV_P_ int how) 3130ev_break (EV_P_ int how) EV_THROW
2171{ 3131{
2172 loop_done = how; 3132 loop_done = how;
2173} 3133}
2174 3134
2175void 3135void
2176ev_ref (EV_P) 3136ev_ref (EV_P) EV_THROW
2177{ 3137{
2178 ++activecnt; 3138 ++activecnt;
2179} 3139}
2180 3140
2181void 3141void
2182ev_unref (EV_P) 3142ev_unref (EV_P) EV_THROW
2183{ 3143{
2184 --activecnt; 3144 --activecnt;
2185} 3145}
2186 3146
2187void 3147void
2188ev_now_update (EV_P) 3148ev_now_update (EV_P) EV_THROW
2189{ 3149{
2190 time_update (EV_A_ 1e100); 3150 time_update (EV_A_ 1e100);
2191} 3151}
2192 3152
2193void 3153void
2194ev_suspend (EV_P) 3154ev_suspend (EV_P) EV_THROW
2195{ 3155{
2196 ev_now_update (EV_A); 3156 ev_now_update (EV_A);
2197} 3157}
2198 3158
2199void 3159void
2200ev_resume (EV_P) 3160ev_resume (EV_P) EV_THROW
2201{ 3161{
2202 ev_tstamp mn_prev = mn_now; 3162 ev_tstamp mn_prev = mn_now;
2203 3163
2204 ev_now_update (EV_A); 3164 ev_now_update (EV_A);
2205 timers_reschedule (EV_A_ mn_now - mn_prev); 3165 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2222inline_size void 3182inline_size void
2223wlist_del (WL *head, WL elem) 3183wlist_del (WL *head, WL elem)
2224{ 3184{
2225 while (*head) 3185 while (*head)
2226 { 3186 {
2227 if (*head == elem) 3187 if (expect_true (*head == elem))
2228 { 3188 {
2229 *head = elem->next; 3189 *head = elem->next;
2230 return; 3190 break;
2231 } 3191 }
2232 3192
2233 head = &(*head)->next; 3193 head = &(*head)->next;
2234 } 3194 }
2235} 3195}
… …
2244 w->pending = 0; 3204 w->pending = 0;
2245 } 3205 }
2246} 3206}
2247 3207
2248int 3208int
2249ev_clear_pending (EV_P_ void *w) 3209ev_clear_pending (EV_P_ void *w) EV_THROW
2250{ 3210{
2251 W w_ = (W)w; 3211 W w_ = (W)w;
2252 int pending = w_->pending; 3212 int pending = w_->pending;
2253 3213
2254 if (expect_true (pending)) 3214 if (expect_true (pending))
… …
2287} 3247}
2288 3248
2289/*****************************************************************************/ 3249/*****************************************************************************/
2290 3250
2291void noinline 3251void noinline
2292ev_io_start (EV_P_ ev_io *w) 3252ev_io_start (EV_P_ ev_io *w) EV_THROW
2293{ 3253{
2294 int fd = w->fd; 3254 int fd = w->fd;
2295 3255
2296 if (expect_false (ev_is_active (w))) 3256 if (expect_false (ev_is_active (w)))
2297 return; 3257 return;
2298 3258
2299 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3259 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2300 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3260 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2301 3261
2302 EV_FREQUENT_CHECK; 3262 EV_FREQUENT_CHECK;
2303 3263
2304 ev_start (EV_A_ (W)w, 1); 3264 ev_start (EV_A_ (W)w, 1);
2305 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3265 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2306 wlist_add (&anfds[fd].head, (WL)w); 3266 wlist_add (&anfds[fd].head, (WL)w);
2307 3267
3268 /* common bug, apparently */
3269 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3270
2308 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 3271 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2309 w->events &= ~EV__IOFDSET; 3272 w->events &= ~EV__IOFDSET;
2310 3273
2311 EV_FREQUENT_CHECK; 3274 EV_FREQUENT_CHECK;
2312} 3275}
2313 3276
2314void noinline 3277void noinline
2315ev_io_stop (EV_P_ ev_io *w) 3278ev_io_stop (EV_P_ ev_io *w) EV_THROW
2316{ 3279{
2317 clear_pending (EV_A_ (W)w); 3280 clear_pending (EV_A_ (W)w);
2318 if (expect_false (!ev_is_active (w))) 3281 if (expect_false (!ev_is_active (w)))
2319 return; 3282 return;
2320 3283
… …
2323 EV_FREQUENT_CHECK; 3286 EV_FREQUENT_CHECK;
2324 3287
2325 wlist_del (&anfds[w->fd].head, (WL)w); 3288 wlist_del (&anfds[w->fd].head, (WL)w);
2326 ev_stop (EV_A_ (W)w); 3289 ev_stop (EV_A_ (W)w);
2327 3290
2328 fd_change (EV_A_ w->fd, 1); 3291 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2329 3292
2330 EV_FREQUENT_CHECK; 3293 EV_FREQUENT_CHECK;
2331} 3294}
2332 3295
2333void noinline 3296void noinline
2334ev_timer_start (EV_P_ ev_timer *w) 3297ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2335{ 3298{
2336 if (expect_false (ev_is_active (w))) 3299 if (expect_false (ev_is_active (w)))
2337 return; 3300 return;
2338 3301
2339 ev_at (w) += mn_now; 3302 ev_at (w) += mn_now;
… …
2353 3316
2354 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3317 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2355} 3318}
2356 3319
2357void noinline 3320void noinline
2358ev_timer_stop (EV_P_ ev_timer *w) 3321ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2359{ 3322{
2360 clear_pending (EV_A_ (W)w); 3323 clear_pending (EV_A_ (W)w);
2361 if (expect_false (!ev_is_active (w))) 3324 if (expect_false (!ev_is_active (w)))
2362 return; 3325 return;
2363 3326
… …
2375 timers [active] = timers [timercnt + HEAP0]; 3338 timers [active] = timers [timercnt + HEAP0];
2376 adjustheap (timers, timercnt, active); 3339 adjustheap (timers, timercnt, active);
2377 } 3340 }
2378 } 3341 }
2379 3342
2380 EV_FREQUENT_CHECK;
2381
2382 ev_at (w) -= mn_now; 3343 ev_at (w) -= mn_now;
2383 3344
2384 ev_stop (EV_A_ (W)w); 3345 ev_stop (EV_A_ (W)w);
3346
3347 EV_FREQUENT_CHECK;
2385} 3348}
2386 3349
2387void noinline 3350void noinline
2388ev_timer_again (EV_P_ ev_timer *w) 3351ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2389{ 3352{
2390 EV_FREQUENT_CHECK; 3353 EV_FREQUENT_CHECK;
3354
3355 clear_pending (EV_A_ (W)w);
2391 3356
2392 if (ev_is_active (w)) 3357 if (ev_is_active (w))
2393 { 3358 {
2394 if (w->repeat) 3359 if (w->repeat)
2395 { 3360 {
… …
2407 } 3372 }
2408 3373
2409 EV_FREQUENT_CHECK; 3374 EV_FREQUENT_CHECK;
2410} 3375}
2411 3376
3377ev_tstamp
3378ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3379{
3380 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3381}
3382
2412#if EV_PERIODIC_ENABLE 3383#if EV_PERIODIC_ENABLE
2413void noinline 3384void noinline
2414ev_periodic_start (EV_P_ ev_periodic *w) 3385ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2415{ 3386{
2416 if (expect_false (ev_is_active (w))) 3387 if (expect_false (ev_is_active (w)))
2417 return; 3388 return;
2418 3389
2419 if (w->reschedule_cb) 3390 if (w->reschedule_cb)
2420 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3391 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2421 else if (w->interval) 3392 else if (w->interval)
2422 { 3393 {
2423 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3394 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2424 /* this formula differs from the one in periodic_reify because we do not always round up */ 3395 periodic_recalc (EV_A_ w);
2425 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2426 } 3396 }
2427 else 3397 else
2428 ev_at (w) = w->offset; 3398 ev_at (w) = w->offset;
2429 3399
2430 EV_FREQUENT_CHECK; 3400 EV_FREQUENT_CHECK;
… …
2440 3410
2441 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3411 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2442} 3412}
2443 3413
2444void noinline 3414void noinline
2445ev_periodic_stop (EV_P_ ev_periodic *w) 3415ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2446{ 3416{
2447 clear_pending (EV_A_ (W)w); 3417 clear_pending (EV_A_ (W)w);
2448 if (expect_false (!ev_is_active (w))) 3418 if (expect_false (!ev_is_active (w)))
2449 return; 3419 return;
2450 3420
… …
2462 periodics [active] = periodics [periodiccnt + HEAP0]; 3432 periodics [active] = periodics [periodiccnt + HEAP0];
2463 adjustheap (periodics, periodiccnt, active); 3433 adjustheap (periodics, periodiccnt, active);
2464 } 3434 }
2465 } 3435 }
2466 3436
2467 EV_FREQUENT_CHECK;
2468
2469 ev_stop (EV_A_ (W)w); 3437 ev_stop (EV_A_ (W)w);
3438
3439 EV_FREQUENT_CHECK;
2470} 3440}
2471 3441
2472void noinline 3442void noinline
2473ev_periodic_again (EV_P_ ev_periodic *w) 3443ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2474{ 3444{
2475 /* TODO: use adjustheap and recalculation */ 3445 /* TODO: use adjustheap and recalculation */
2476 ev_periodic_stop (EV_A_ w); 3446 ev_periodic_stop (EV_A_ w);
2477 ev_periodic_start (EV_A_ w); 3447 ev_periodic_start (EV_A_ w);
2478} 3448}
… …
2480 3450
2481#ifndef SA_RESTART 3451#ifndef SA_RESTART
2482# define SA_RESTART 0 3452# define SA_RESTART 0
2483#endif 3453#endif
2484 3454
3455#if EV_SIGNAL_ENABLE
3456
2485void noinline 3457void noinline
2486ev_signal_start (EV_P_ ev_signal *w) 3458ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2487{ 3459{
2488#if EV_MULTIPLICITY
2489 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2490#endif
2491 if (expect_false (ev_is_active (w))) 3460 if (expect_false (ev_is_active (w)))
2492 return; 3461 return;
2493 3462
2494 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3463 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2495 3464
2496 evpipe_init (EV_A); 3465#if EV_MULTIPLICITY
3466 assert (("libev: a signal must not be attached to two different loops",
3467 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2497 3468
2498 EV_FREQUENT_CHECK; 3469 signals [w->signum - 1].loop = EV_A;
3470#endif
2499 3471
3472 EV_FREQUENT_CHECK;
3473
3474#if EV_USE_SIGNALFD
3475 if (sigfd == -2)
2500 { 3476 {
2501#ifndef _WIN32 3477 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2502 sigset_t full, prev; 3478 if (sigfd < 0 && errno == EINVAL)
2503 sigfillset (&full); 3479 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2504 sigprocmask (SIG_SETMASK, &full, &prev);
2505#endif
2506 3480
2507 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3481 if (sigfd >= 0)
3482 {
3483 fd_intern (sigfd); /* doing it twice will not hurt */
2508 3484
2509#ifndef _WIN32 3485 sigemptyset (&sigfd_set);
2510 sigprocmask (SIG_SETMASK, &prev, 0); 3486
2511#endif 3487 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3488 ev_set_priority (&sigfd_w, EV_MAXPRI);
3489 ev_io_start (EV_A_ &sigfd_w);
3490 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3491 }
2512 } 3492 }
3493
3494 if (sigfd >= 0)
3495 {
3496 /* TODO: check .head */
3497 sigaddset (&sigfd_set, w->signum);
3498 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3499
3500 signalfd (sigfd, &sigfd_set, 0);
3501 }
3502#endif
2513 3503
2514 ev_start (EV_A_ (W)w, 1); 3504 ev_start (EV_A_ (W)w, 1);
2515 wlist_add (&signals [w->signum - 1].head, (WL)w); 3505 wlist_add (&signals [w->signum - 1].head, (WL)w);
2516 3506
2517 if (!((WL)w)->next) 3507 if (!((WL)w)->next)
3508# if EV_USE_SIGNALFD
3509 if (sigfd < 0) /*TODO*/
3510# endif
2518 { 3511 {
2519#if _WIN32 3512# ifdef _WIN32
3513 evpipe_init (EV_A);
3514
2520 signal (w->signum, ev_sighandler); 3515 signal (w->signum, ev_sighandler);
2521#else 3516# else
2522 struct sigaction sa; 3517 struct sigaction sa;
3518
3519 evpipe_init (EV_A);
3520
2523 sa.sa_handler = ev_sighandler; 3521 sa.sa_handler = ev_sighandler;
2524 sigfillset (&sa.sa_mask); 3522 sigfillset (&sa.sa_mask);
2525 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3523 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2526 sigaction (w->signum, &sa, 0); 3524 sigaction (w->signum, &sa, 0);
3525
3526 if (origflags & EVFLAG_NOSIGMASK)
3527 {
3528 sigemptyset (&sa.sa_mask);
3529 sigaddset (&sa.sa_mask, w->signum);
3530 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3531 }
2527#endif 3532#endif
2528 } 3533 }
2529 3534
2530 EV_FREQUENT_CHECK; 3535 EV_FREQUENT_CHECK;
2531} 3536}
2532 3537
2533void noinline 3538void noinline
2534ev_signal_stop (EV_P_ ev_signal *w) 3539ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2535{ 3540{
2536 clear_pending (EV_A_ (W)w); 3541 clear_pending (EV_A_ (W)w);
2537 if (expect_false (!ev_is_active (w))) 3542 if (expect_false (!ev_is_active (w)))
2538 return; 3543 return;
2539 3544
… …
2541 3546
2542 wlist_del (&signals [w->signum - 1].head, (WL)w); 3547 wlist_del (&signals [w->signum - 1].head, (WL)w);
2543 ev_stop (EV_A_ (W)w); 3548 ev_stop (EV_A_ (W)w);
2544 3549
2545 if (!signals [w->signum - 1].head) 3550 if (!signals [w->signum - 1].head)
3551 {
3552#if EV_MULTIPLICITY
3553 signals [w->signum - 1].loop = 0; /* unattach from signal */
3554#endif
3555#if EV_USE_SIGNALFD
3556 if (sigfd >= 0)
3557 {
3558 sigset_t ss;
3559
3560 sigemptyset (&ss);
3561 sigaddset (&ss, w->signum);
3562 sigdelset (&sigfd_set, w->signum);
3563
3564 signalfd (sigfd, &sigfd_set, 0);
3565 sigprocmask (SIG_UNBLOCK, &ss, 0);
3566 }
3567 else
3568#endif
2546 signal (w->signum, SIG_DFL); 3569 signal (w->signum, SIG_DFL);
3570 }
2547 3571
2548 EV_FREQUENT_CHECK; 3572 EV_FREQUENT_CHECK;
2549} 3573}
3574
3575#endif
3576
3577#if EV_CHILD_ENABLE
2550 3578
2551void 3579void
2552ev_child_start (EV_P_ ev_child *w) 3580ev_child_start (EV_P_ ev_child *w) EV_THROW
2553{ 3581{
2554#if EV_MULTIPLICITY 3582#if EV_MULTIPLICITY
2555 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3583 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2556#endif 3584#endif
2557 if (expect_false (ev_is_active (w))) 3585 if (expect_false (ev_is_active (w)))
2558 return; 3586 return;
2559 3587
2560 EV_FREQUENT_CHECK; 3588 EV_FREQUENT_CHECK;
2561 3589
2562 ev_start (EV_A_ (W)w, 1); 3590 ev_start (EV_A_ (W)w, 1);
2563 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3591 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2564 3592
2565 EV_FREQUENT_CHECK; 3593 EV_FREQUENT_CHECK;
2566} 3594}
2567 3595
2568void 3596void
2569ev_child_stop (EV_P_ ev_child *w) 3597ev_child_stop (EV_P_ ev_child *w) EV_THROW
2570{ 3598{
2571 clear_pending (EV_A_ (W)w); 3599 clear_pending (EV_A_ (W)w);
2572 if (expect_false (!ev_is_active (w))) 3600 if (expect_false (!ev_is_active (w)))
2573 return; 3601 return;
2574 3602
2575 EV_FREQUENT_CHECK; 3603 EV_FREQUENT_CHECK;
2576 3604
2577 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3605 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2578 ev_stop (EV_A_ (W)w); 3606 ev_stop (EV_A_ (W)w);
2579 3607
2580 EV_FREQUENT_CHECK; 3608 EV_FREQUENT_CHECK;
2581} 3609}
3610
3611#endif
2582 3612
2583#if EV_STAT_ENABLE 3613#if EV_STAT_ENABLE
2584 3614
2585# ifdef _WIN32 3615# ifdef _WIN32
2586# undef lstat 3616# undef lstat
… …
2592#define MIN_STAT_INTERVAL 0.1074891 3622#define MIN_STAT_INTERVAL 0.1074891
2593 3623
2594static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3624static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2595 3625
2596#if EV_USE_INOTIFY 3626#if EV_USE_INOTIFY
2597# define EV_INOTIFY_BUFSIZE 8192 3627
3628/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3629# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2598 3630
2599static void noinline 3631static void noinline
2600infy_add (EV_P_ ev_stat *w) 3632infy_add (EV_P_ ev_stat *w)
2601{ 3633{
2602 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); 3634 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);
2603 3635
2604 if (w->wd < 0) 3636 if (w->wd >= 0)
3637 {
3638 struct statfs sfs;
3639
3640 /* now local changes will be tracked by inotify, but remote changes won't */
3641 /* unless the filesystem is known to be local, we therefore still poll */
3642 /* also do poll on <2.6.25, but with normal frequency */
3643
3644 if (!fs_2625)
3645 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3646 else if (!statfs (w->path, &sfs)
3647 && (sfs.f_type == 0x1373 /* devfs */
3648 || sfs.f_type == 0xEF53 /* ext2/3 */
3649 || sfs.f_type == 0x3153464a /* jfs */
3650 || sfs.f_type == 0x52654973 /* reiser3 */
3651 || sfs.f_type == 0x01021994 /* tempfs */
3652 || sfs.f_type == 0x58465342 /* xfs */))
3653 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3654 else
3655 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2605 { 3656 }
3657 else
3658 {
3659 /* can't use inotify, continue to stat */
2606 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3660 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2607 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2608 3661
2609 /* monitor some parent directory for speedup hints */ 3662 /* if path is not there, monitor some parent directory for speedup hints */
2610 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3663 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2611 /* but an efficiency issue only */ 3664 /* but an efficiency issue only */
2612 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3665 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2613 { 3666 {
2614 char path [4096]; 3667 char path [4096];
… …
2624 if (!pend || pend == path) 3677 if (!pend || pend == path)
2625 break; 3678 break;
2626 3679
2627 *pend = 0; 3680 *pend = 0;
2628 w->wd = inotify_add_watch (fs_fd, path, mask); 3681 w->wd = inotify_add_watch (fs_fd, path, mask);
2629 } 3682 }
2630 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3683 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2631 } 3684 }
2632 } 3685 }
2633 3686
2634 if (w->wd >= 0) 3687 if (w->wd >= 0)
2635 {
2636 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3688 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2637 3689
2638 /* now local changes will be tracked by inotify, but remote changes won't */ 3690 /* now re-arm timer, if required */
2639 /* unless the filesystem it known to be local, we therefore still poll */ 3691 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2640 /* also do poll on <2.6.25, but with normal frequency */
2641 struct statfs sfs;
2642
2643 if (fs_2625 && !statfs (w->path, &sfs))
2644 if (sfs.f_type == 0x1373 /* devfs */
2645 || sfs.f_type == 0xEF53 /* ext2/3 */
2646 || sfs.f_type == 0x3153464a /* jfs */
2647 || sfs.f_type == 0x52654973 /* reiser3 */
2648 || sfs.f_type == 0x01021994 /* tempfs */
2649 || sfs.f_type == 0x58465342 /* xfs */)
2650 return;
2651
2652 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2653 ev_timer_again (EV_A_ &w->timer); 3692 ev_timer_again (EV_A_ &w->timer);
2654 } 3693 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2655} 3694}
2656 3695
2657static void noinline 3696static void noinline
2658infy_del (EV_P_ ev_stat *w) 3697infy_del (EV_P_ ev_stat *w)
2659{ 3698{
… …
2662 3701
2663 if (wd < 0) 3702 if (wd < 0)
2664 return; 3703 return;
2665 3704
2666 w->wd = -2; 3705 w->wd = -2;
2667 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3706 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2668 wlist_del (&fs_hash [slot].head, (WL)w); 3707 wlist_del (&fs_hash [slot].head, (WL)w);
2669 3708
2670 /* remove this watcher, if others are watching it, they will rearm */ 3709 /* remove this watcher, if others are watching it, they will rearm */
2671 inotify_rm_watch (fs_fd, wd); 3710 inotify_rm_watch (fs_fd, wd);
2672} 3711}
… …
2674static void noinline 3713static void noinline
2675infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3714infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2676{ 3715{
2677 if (slot < 0) 3716 if (slot < 0)
2678 /* overflow, need to check for all hash slots */ 3717 /* overflow, need to check for all hash slots */
2679 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3718 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2680 infy_wd (EV_A_ slot, wd, ev); 3719 infy_wd (EV_A_ slot, wd, ev);
2681 else 3720 else
2682 { 3721 {
2683 WL w_; 3722 WL w_;
2684 3723
2685 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3724 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2686 { 3725 {
2687 ev_stat *w = (ev_stat *)w_; 3726 ev_stat *w = (ev_stat *)w_;
2688 w_ = w_->next; /* lets us remove this watcher and all before it */ 3727 w_ = w_->next; /* lets us remove this watcher and all before it */
2689 3728
2690 if (w->wd == wd || wd == -1) 3729 if (w->wd == wd || wd == -1)
2691 { 3730 {
2692 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3731 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2693 { 3732 {
2694 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3733 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2695 w->wd = -1; 3734 w->wd = -1;
2696 infy_add (EV_A_ w); /* re-add, no matter what */ 3735 infy_add (EV_A_ w); /* re-add, no matter what */
2697 } 3736 }
2698 3737
2699 stat_timer_cb (EV_A_ &w->timer, 0); 3738 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2704 3743
2705static void 3744static void
2706infy_cb (EV_P_ ev_io *w, int revents) 3745infy_cb (EV_P_ ev_io *w, int revents)
2707{ 3746{
2708 char buf [EV_INOTIFY_BUFSIZE]; 3747 char buf [EV_INOTIFY_BUFSIZE];
2709 struct inotify_event *ev = (struct inotify_event *)buf;
2710 int ofs; 3748 int ofs;
2711 int len = read (fs_fd, buf, sizeof (buf)); 3749 int len = read (fs_fd, buf, sizeof (buf));
2712 3750
2713 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3751 for (ofs = 0; ofs < len; )
3752 {
3753 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2714 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3754 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3755 ofs += sizeof (struct inotify_event) + ev->len;
3756 }
2715} 3757}
2716 3758
2717inline_size void 3759inline_size void ecb_cold
2718check_2625 (EV_P) 3760ev_check_2625 (EV_P)
2719{ 3761{
2720 /* kernels < 2.6.25 are borked 3762 /* kernels < 2.6.25 are borked
2721 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3763 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2722 */ 3764 */
2723 struct utsname buf; 3765 if (ev_linux_version () < 0x020619)
2724 int major, minor, micro;
2725
2726 if (uname (&buf))
2727 return; 3766 return;
2728 3767
2729 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2730 return;
2731
2732 if (major < 2
2733 || (major == 2 && minor < 6)
2734 || (major == 2 && minor == 6 && micro < 25))
2735 return;
2736
2737 fs_2625 = 1; 3768 fs_2625 = 1;
3769}
3770
3771inline_size int
3772infy_newfd (void)
3773{
3774#if defined IN_CLOEXEC && defined IN_NONBLOCK
3775 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3776 if (fd >= 0)
3777 return fd;
3778#endif
3779 return inotify_init ();
2738} 3780}
2739 3781
2740inline_size void 3782inline_size void
2741infy_init (EV_P) 3783infy_init (EV_P)
2742{ 3784{
2743 if (fs_fd != -2) 3785 if (fs_fd != -2)
2744 return; 3786 return;
2745 3787
2746 fs_fd = -1; 3788 fs_fd = -1;
2747 3789
2748 check_2625 (EV_A); 3790 ev_check_2625 (EV_A);
2749 3791
2750 fs_fd = inotify_init (); 3792 fs_fd = infy_newfd ();
2751 3793
2752 if (fs_fd >= 0) 3794 if (fs_fd >= 0)
2753 { 3795 {
3796 fd_intern (fs_fd);
2754 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3797 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2755 ev_set_priority (&fs_w, EV_MAXPRI); 3798 ev_set_priority (&fs_w, EV_MAXPRI);
2756 ev_io_start (EV_A_ &fs_w); 3799 ev_io_start (EV_A_ &fs_w);
3800 ev_unref (EV_A);
2757 } 3801 }
2758} 3802}
2759 3803
2760inline_size void 3804inline_size void
2761infy_fork (EV_P) 3805infy_fork (EV_P)
… …
2763 int slot; 3807 int slot;
2764 3808
2765 if (fs_fd < 0) 3809 if (fs_fd < 0)
2766 return; 3810 return;
2767 3811
3812 ev_ref (EV_A);
3813 ev_io_stop (EV_A_ &fs_w);
2768 close (fs_fd); 3814 close (fs_fd);
2769 fs_fd = inotify_init (); 3815 fs_fd = infy_newfd ();
2770 3816
3817 if (fs_fd >= 0)
3818 {
3819 fd_intern (fs_fd);
3820 ev_io_set (&fs_w, fs_fd, EV_READ);
3821 ev_io_start (EV_A_ &fs_w);
3822 ev_unref (EV_A);
3823 }
3824
2771 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3825 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2772 { 3826 {
2773 WL w_ = fs_hash [slot].head; 3827 WL w_ = fs_hash [slot].head;
2774 fs_hash [slot].head = 0; 3828 fs_hash [slot].head = 0;
2775 3829
2776 while (w_) 3830 while (w_)
… …
2781 w->wd = -1; 3835 w->wd = -1;
2782 3836
2783 if (fs_fd >= 0) 3837 if (fs_fd >= 0)
2784 infy_add (EV_A_ w); /* re-add, no matter what */ 3838 infy_add (EV_A_ w); /* re-add, no matter what */
2785 else 3839 else
3840 {
3841 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3842 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2786 ev_timer_again (EV_A_ &w->timer); 3843 ev_timer_again (EV_A_ &w->timer);
3844 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3845 }
2787 } 3846 }
2788 } 3847 }
2789} 3848}
2790 3849
2791#endif 3850#endif
… …
2795#else 3854#else
2796# define EV_LSTAT(p,b) lstat (p, b) 3855# define EV_LSTAT(p,b) lstat (p, b)
2797#endif 3856#endif
2798 3857
2799void 3858void
2800ev_stat_stat (EV_P_ ev_stat *w) 3859ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2801{ 3860{
2802 if (lstat (w->path, &w->attr) < 0) 3861 if (lstat (w->path, &w->attr) < 0)
2803 w->attr.st_nlink = 0; 3862 w->attr.st_nlink = 0;
2804 else if (!w->attr.st_nlink) 3863 else if (!w->attr.st_nlink)
2805 w->attr.st_nlink = 1; 3864 w->attr.st_nlink = 1;
… …
2808static void noinline 3867static void noinline
2809stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3868stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2810{ 3869{
2811 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3870 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2812 3871
2813 /* we copy this here each the time so that */ 3872 ev_statdata prev = w->attr;
2814 /* prev has the old value when the callback gets invoked */
2815 w->prev = w->attr;
2816 ev_stat_stat (EV_A_ w); 3873 ev_stat_stat (EV_A_ w);
2817 3874
2818 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3875 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2819 if ( 3876 if (
2820 w->prev.st_dev != w->attr.st_dev 3877 prev.st_dev != w->attr.st_dev
2821 || w->prev.st_ino != w->attr.st_ino 3878 || prev.st_ino != w->attr.st_ino
2822 || w->prev.st_mode != w->attr.st_mode 3879 || prev.st_mode != w->attr.st_mode
2823 || w->prev.st_nlink != w->attr.st_nlink 3880 || prev.st_nlink != w->attr.st_nlink
2824 || w->prev.st_uid != w->attr.st_uid 3881 || prev.st_uid != w->attr.st_uid
2825 || w->prev.st_gid != w->attr.st_gid 3882 || prev.st_gid != w->attr.st_gid
2826 || w->prev.st_rdev != w->attr.st_rdev 3883 || prev.st_rdev != w->attr.st_rdev
2827 || w->prev.st_size != w->attr.st_size 3884 || prev.st_size != w->attr.st_size
2828 || w->prev.st_atime != w->attr.st_atime 3885 || prev.st_atime != w->attr.st_atime
2829 || w->prev.st_mtime != w->attr.st_mtime 3886 || prev.st_mtime != w->attr.st_mtime
2830 || w->prev.st_ctime != w->attr.st_ctime 3887 || prev.st_ctime != w->attr.st_ctime
2831 ) { 3888 ) {
3889 /* we only update w->prev on actual differences */
3890 /* in case we test more often than invoke the callback, */
3891 /* to ensure that prev is always different to attr */
3892 w->prev = prev;
3893
2832 #if EV_USE_INOTIFY 3894 #if EV_USE_INOTIFY
2833 if (fs_fd >= 0) 3895 if (fs_fd >= 0)
2834 { 3896 {
2835 infy_del (EV_A_ w); 3897 infy_del (EV_A_ w);
2836 infy_add (EV_A_ w); 3898 infy_add (EV_A_ w);
… …
2841 ev_feed_event (EV_A_ w, EV_STAT); 3903 ev_feed_event (EV_A_ w, EV_STAT);
2842 } 3904 }
2843} 3905}
2844 3906
2845void 3907void
2846ev_stat_start (EV_P_ ev_stat *w) 3908ev_stat_start (EV_P_ ev_stat *w) EV_THROW
2847{ 3909{
2848 if (expect_false (ev_is_active (w))) 3910 if (expect_false (ev_is_active (w)))
2849 return; 3911 return;
2850 3912
2851 ev_stat_stat (EV_A_ w); 3913 ev_stat_stat (EV_A_ w);
… …
2861 3923
2862 if (fs_fd >= 0) 3924 if (fs_fd >= 0)
2863 infy_add (EV_A_ w); 3925 infy_add (EV_A_ w);
2864 else 3926 else
2865#endif 3927#endif
3928 {
2866 ev_timer_again (EV_A_ &w->timer); 3929 ev_timer_again (EV_A_ &w->timer);
3930 ev_unref (EV_A);
3931 }
2867 3932
2868 ev_start (EV_A_ (W)w, 1); 3933 ev_start (EV_A_ (W)w, 1);
2869 3934
2870 EV_FREQUENT_CHECK; 3935 EV_FREQUENT_CHECK;
2871} 3936}
2872 3937
2873void 3938void
2874ev_stat_stop (EV_P_ ev_stat *w) 3939ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
2875{ 3940{
2876 clear_pending (EV_A_ (W)w); 3941 clear_pending (EV_A_ (W)w);
2877 if (expect_false (!ev_is_active (w))) 3942 if (expect_false (!ev_is_active (w)))
2878 return; 3943 return;
2879 3944
2880 EV_FREQUENT_CHECK; 3945 EV_FREQUENT_CHECK;
2881 3946
2882#if EV_USE_INOTIFY 3947#if EV_USE_INOTIFY
2883 infy_del (EV_A_ w); 3948 infy_del (EV_A_ w);
2884#endif 3949#endif
3950
3951 if (ev_is_active (&w->timer))
3952 {
3953 ev_ref (EV_A);
2885 ev_timer_stop (EV_A_ &w->timer); 3954 ev_timer_stop (EV_A_ &w->timer);
3955 }
2886 3956
2887 ev_stop (EV_A_ (W)w); 3957 ev_stop (EV_A_ (W)w);
2888 3958
2889 EV_FREQUENT_CHECK; 3959 EV_FREQUENT_CHECK;
2890} 3960}
2891#endif 3961#endif
2892 3962
2893#if EV_IDLE_ENABLE 3963#if EV_IDLE_ENABLE
2894void 3964void
2895ev_idle_start (EV_P_ ev_idle *w) 3965ev_idle_start (EV_P_ ev_idle *w) EV_THROW
2896{ 3966{
2897 if (expect_false (ev_is_active (w))) 3967 if (expect_false (ev_is_active (w)))
2898 return; 3968 return;
2899 3969
2900 pri_adjust (EV_A_ (W)w); 3970 pri_adjust (EV_A_ (W)w);
… …
2913 3983
2914 EV_FREQUENT_CHECK; 3984 EV_FREQUENT_CHECK;
2915} 3985}
2916 3986
2917void 3987void
2918ev_idle_stop (EV_P_ ev_idle *w) 3988ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
2919{ 3989{
2920 clear_pending (EV_A_ (W)w); 3990 clear_pending (EV_A_ (W)w);
2921 if (expect_false (!ev_is_active (w))) 3991 if (expect_false (!ev_is_active (w)))
2922 return; 3992 return;
2923 3993
… …
2935 4005
2936 EV_FREQUENT_CHECK; 4006 EV_FREQUENT_CHECK;
2937} 4007}
2938#endif 4008#endif
2939 4009
4010#if EV_PREPARE_ENABLE
2940void 4011void
2941ev_prepare_start (EV_P_ ev_prepare *w) 4012ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
2942{ 4013{
2943 if (expect_false (ev_is_active (w))) 4014 if (expect_false (ev_is_active (w)))
2944 return; 4015 return;
2945 4016
2946 EV_FREQUENT_CHECK; 4017 EV_FREQUENT_CHECK;
… …
2951 4022
2952 EV_FREQUENT_CHECK; 4023 EV_FREQUENT_CHECK;
2953} 4024}
2954 4025
2955void 4026void
2956ev_prepare_stop (EV_P_ ev_prepare *w) 4027ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
2957{ 4028{
2958 clear_pending (EV_A_ (W)w); 4029 clear_pending (EV_A_ (W)w);
2959 if (expect_false (!ev_is_active (w))) 4030 if (expect_false (!ev_is_active (w)))
2960 return; 4031 return;
2961 4032
… …
2970 4041
2971 ev_stop (EV_A_ (W)w); 4042 ev_stop (EV_A_ (W)w);
2972 4043
2973 EV_FREQUENT_CHECK; 4044 EV_FREQUENT_CHECK;
2974} 4045}
4046#endif
2975 4047
4048#if EV_CHECK_ENABLE
2976void 4049void
2977ev_check_start (EV_P_ ev_check *w) 4050ev_check_start (EV_P_ ev_check *w) EV_THROW
2978{ 4051{
2979 if (expect_false (ev_is_active (w))) 4052 if (expect_false (ev_is_active (w)))
2980 return; 4053 return;
2981 4054
2982 EV_FREQUENT_CHECK; 4055 EV_FREQUENT_CHECK;
… …
2987 4060
2988 EV_FREQUENT_CHECK; 4061 EV_FREQUENT_CHECK;
2989} 4062}
2990 4063
2991void 4064void
2992ev_check_stop (EV_P_ ev_check *w) 4065ev_check_stop (EV_P_ ev_check *w) EV_THROW
2993{ 4066{
2994 clear_pending (EV_A_ (W)w); 4067 clear_pending (EV_A_ (W)w);
2995 if (expect_false (!ev_is_active (w))) 4068 if (expect_false (!ev_is_active (w)))
2996 return; 4069 return;
2997 4070
… …
3006 4079
3007 ev_stop (EV_A_ (W)w); 4080 ev_stop (EV_A_ (W)w);
3008 4081
3009 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
3010} 4083}
4084#endif
3011 4085
3012#if EV_EMBED_ENABLE 4086#if EV_EMBED_ENABLE
3013void noinline 4087void noinline
3014ev_embed_sweep (EV_P_ ev_embed *w) 4088ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3015{ 4089{
3016 ev_loop (w->other, EVLOOP_NONBLOCK); 4090 ev_run (w->other, EVRUN_NOWAIT);
3017} 4091}
3018 4092
3019static void 4093static void
3020embed_io_cb (EV_P_ ev_io *io, int revents) 4094embed_io_cb (EV_P_ ev_io *io, int revents)
3021{ 4095{
3022 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4096 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3023 4097
3024 if (ev_cb (w)) 4098 if (ev_cb (w))
3025 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4099 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3026 else 4100 else
3027 ev_loop (w->other, EVLOOP_NONBLOCK); 4101 ev_run (w->other, EVRUN_NOWAIT);
3028} 4102}
3029 4103
3030static void 4104static void
3031embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4105embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3032{ 4106{
3033 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4107 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3034 4108
3035 { 4109 {
3036 struct ev_loop *loop = w->other; 4110 EV_P = w->other;
3037 4111
3038 while (fdchangecnt) 4112 while (fdchangecnt)
3039 { 4113 {
3040 fd_reify (EV_A); 4114 fd_reify (EV_A);
3041 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4115 ev_run (EV_A_ EVRUN_NOWAIT);
3042 } 4116 }
3043 } 4117 }
3044} 4118}
3045 4119
3046static void 4120static void
… …
3049 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4123 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3050 4124
3051 ev_embed_stop (EV_A_ w); 4125 ev_embed_stop (EV_A_ w);
3052 4126
3053 { 4127 {
3054 struct ev_loop *loop = w->other; 4128 EV_P = w->other;
3055 4129
3056 ev_loop_fork (EV_A); 4130 ev_loop_fork (EV_A);
3057 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4131 ev_run (EV_A_ EVRUN_NOWAIT);
3058 } 4132 }
3059 4133
3060 ev_embed_start (EV_A_ w); 4134 ev_embed_start (EV_A_ w);
3061} 4135}
3062 4136
… …
3067 ev_idle_stop (EV_A_ idle); 4141 ev_idle_stop (EV_A_ idle);
3068} 4142}
3069#endif 4143#endif
3070 4144
3071void 4145void
3072ev_embed_start (EV_P_ ev_embed *w) 4146ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3073{ 4147{
3074 if (expect_false (ev_is_active (w))) 4148 if (expect_false (ev_is_active (w)))
3075 return; 4149 return;
3076 4150
3077 { 4151 {
3078 struct ev_loop *loop = w->other; 4152 EV_P = w->other;
3079 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4153 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3080 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4154 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3081 } 4155 }
3082 4156
3083 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
… …
3098 4172
3099 EV_FREQUENT_CHECK; 4173 EV_FREQUENT_CHECK;
3100} 4174}
3101 4175
3102void 4176void
3103ev_embed_stop (EV_P_ ev_embed *w) 4177ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3104{ 4178{
3105 clear_pending (EV_A_ (W)w); 4179 clear_pending (EV_A_ (W)w);
3106 if (expect_false (!ev_is_active (w))) 4180 if (expect_false (!ev_is_active (w)))
3107 return; 4181 return;
3108 4182
… …
3110 4184
3111 ev_io_stop (EV_A_ &w->io); 4185 ev_io_stop (EV_A_ &w->io);
3112 ev_prepare_stop (EV_A_ &w->prepare); 4186 ev_prepare_stop (EV_A_ &w->prepare);
3113 ev_fork_stop (EV_A_ &w->fork); 4187 ev_fork_stop (EV_A_ &w->fork);
3114 4188
4189 ev_stop (EV_A_ (W)w);
4190
3115 EV_FREQUENT_CHECK; 4191 EV_FREQUENT_CHECK;
3116} 4192}
3117#endif 4193#endif
3118 4194
3119#if EV_FORK_ENABLE 4195#if EV_FORK_ENABLE
3120void 4196void
3121ev_fork_start (EV_P_ ev_fork *w) 4197ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3122{ 4198{
3123 if (expect_false (ev_is_active (w))) 4199 if (expect_false (ev_is_active (w)))
3124 return; 4200 return;
3125 4201
3126 EV_FREQUENT_CHECK; 4202 EV_FREQUENT_CHECK;
… …
3131 4207
3132 EV_FREQUENT_CHECK; 4208 EV_FREQUENT_CHECK;
3133} 4209}
3134 4210
3135void 4211void
3136ev_fork_stop (EV_P_ ev_fork *w) 4212ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3137{ 4213{
3138 clear_pending (EV_A_ (W)w); 4214 clear_pending (EV_A_ (W)w);
3139 if (expect_false (!ev_is_active (w))) 4215 if (expect_false (!ev_is_active (w)))
3140 return; 4216 return;
3141 4217
… …
3152 4228
3153 EV_FREQUENT_CHECK; 4229 EV_FREQUENT_CHECK;
3154} 4230}
3155#endif 4231#endif
3156 4232
4233#if EV_CLEANUP_ENABLE
4234void
4235ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4236{
4237 if (expect_false (ev_is_active (w)))
4238 return;
4239
4240 EV_FREQUENT_CHECK;
4241
4242 ev_start (EV_A_ (W)w, ++cleanupcnt);
4243 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4244 cleanups [cleanupcnt - 1] = w;
4245
4246 /* cleanup watchers should never keep a refcount on the loop */
4247 ev_unref (EV_A);
4248 EV_FREQUENT_CHECK;
4249}
4250
4251void
4252ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4253{
4254 clear_pending (EV_A_ (W)w);
4255 if (expect_false (!ev_is_active (w)))
4256 return;
4257
4258 EV_FREQUENT_CHECK;
4259 ev_ref (EV_A);
4260
4261 {
4262 int active = ev_active (w);
4263
4264 cleanups [active - 1] = cleanups [--cleanupcnt];
4265 ev_active (cleanups [active - 1]) = active;
4266 }
4267
4268 ev_stop (EV_A_ (W)w);
4269
4270 EV_FREQUENT_CHECK;
4271}
4272#endif
4273
3157#if EV_ASYNC_ENABLE 4274#if EV_ASYNC_ENABLE
3158void 4275void
3159ev_async_start (EV_P_ ev_async *w) 4276ev_async_start (EV_P_ ev_async *w) EV_THROW
3160{ 4277{
3161 if (expect_false (ev_is_active (w))) 4278 if (expect_false (ev_is_active (w)))
3162 return; 4279 return;
4280
4281 w->sent = 0;
3163 4282
3164 evpipe_init (EV_A); 4283 evpipe_init (EV_A);
3165 4284
3166 EV_FREQUENT_CHECK; 4285 EV_FREQUENT_CHECK;
3167 4286
… …
3171 4290
3172 EV_FREQUENT_CHECK; 4291 EV_FREQUENT_CHECK;
3173} 4292}
3174 4293
3175void 4294void
3176ev_async_stop (EV_P_ ev_async *w) 4295ev_async_stop (EV_P_ ev_async *w) EV_THROW
3177{ 4296{
3178 clear_pending (EV_A_ (W)w); 4297 clear_pending (EV_A_ (W)w);
3179 if (expect_false (!ev_is_active (w))) 4298 if (expect_false (!ev_is_active (w)))
3180 return; 4299 return;
3181 4300
… …
3192 4311
3193 EV_FREQUENT_CHECK; 4312 EV_FREQUENT_CHECK;
3194} 4313}
3195 4314
3196void 4315void
3197ev_async_send (EV_P_ ev_async *w) 4316ev_async_send (EV_P_ ev_async *w) EV_THROW
3198{ 4317{
3199 w->sent = 1; 4318 w->sent = 1;
3200 evpipe_write (EV_A_ &gotasync); 4319 evpipe_write (EV_A_ &async_pending);
3201} 4320}
3202#endif 4321#endif
3203 4322
3204/*****************************************************************************/ 4323/*****************************************************************************/
3205 4324
… …
3239 4358
3240 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4359 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3241} 4360}
3242 4361
3243void 4362void
3244ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4363ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3245{ 4364{
3246 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4365 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3247 4366
3248 if (expect_false (!once)) 4367 if (expect_false (!once))
3249 { 4368 {
3250 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4369 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3251 return; 4370 return;
3252 } 4371 }
3253 4372
3254 once->cb = cb; 4373 once->cb = cb;
3255 once->arg = arg; 4374 once->arg = arg;
… …
3270} 4389}
3271 4390
3272/*****************************************************************************/ 4391/*****************************************************************************/
3273 4392
3274#if EV_WALK_ENABLE 4393#if EV_WALK_ENABLE
3275void 4394void ecb_cold
3276ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4395ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3277{ 4396{
3278 int i, j; 4397 int i, j;
3279 ev_watcher_list *wl, *wn; 4398 ev_watcher_list *wl, *wn;
3280 4399
3281 if (types & (EV_IO | EV_EMBED)) 4400 if (types & (EV_IO | EV_EMBED))
… …
3324 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4443 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3325#endif 4444#endif
3326 4445
3327#if EV_IDLE_ENABLE 4446#if EV_IDLE_ENABLE
3328 if (types & EV_IDLE) 4447 if (types & EV_IDLE)
3329 for (j = NUMPRI; i--; ) 4448 for (j = NUMPRI; j--; )
3330 for (i = idlecnt [j]; i--; ) 4449 for (i = idlecnt [j]; i--; )
3331 cb (EV_A_ EV_IDLE, idles [j][i]); 4450 cb (EV_A_ EV_IDLE, idles [j][i]);
3332#endif 4451#endif
3333 4452
3334#if EV_FORK_ENABLE 4453#if EV_FORK_ENABLE
… …
3342 if (types & EV_ASYNC) 4461 if (types & EV_ASYNC)
3343 for (i = asynccnt; i--; ) 4462 for (i = asynccnt; i--; )
3344 cb (EV_A_ EV_ASYNC, asyncs [i]); 4463 cb (EV_A_ EV_ASYNC, asyncs [i]);
3345#endif 4464#endif
3346 4465
4466#if EV_PREPARE_ENABLE
3347 if (types & EV_PREPARE) 4467 if (types & EV_PREPARE)
3348 for (i = preparecnt; i--; ) 4468 for (i = preparecnt; i--; )
3349#if EV_EMBED_ENABLE 4469# if EV_EMBED_ENABLE
3350 if (ev_cb (prepares [i]) != embed_prepare_cb) 4470 if (ev_cb (prepares [i]) != embed_prepare_cb)
3351#endif 4471# endif
3352 cb (EV_A_ EV_PREPARE, prepares [i]); 4472 cb (EV_A_ EV_PREPARE, prepares [i]);
4473#endif
3353 4474
4475#if EV_CHECK_ENABLE
3354 if (types & EV_CHECK) 4476 if (types & EV_CHECK)
3355 for (i = checkcnt; i--; ) 4477 for (i = checkcnt; i--; )
3356 cb (EV_A_ EV_CHECK, checks [i]); 4478 cb (EV_A_ EV_CHECK, checks [i]);
4479#endif
3357 4480
4481#if EV_SIGNAL_ENABLE
3358 if (types & EV_SIGNAL) 4482 if (types & EV_SIGNAL)
3359 for (i = 0; i < signalmax; ++i) 4483 for (i = 0; i < EV_NSIG - 1; ++i)
3360 for (wl = signals [i].head; wl; ) 4484 for (wl = signals [i].head; wl; )
3361 { 4485 {
3362 wn = wl->next; 4486 wn = wl->next;
3363 cb (EV_A_ EV_SIGNAL, wl); 4487 cb (EV_A_ EV_SIGNAL, wl);
3364 wl = wn; 4488 wl = wn;
3365 } 4489 }
4490#endif
3366 4491
4492#if EV_CHILD_ENABLE
3367 if (types & EV_CHILD) 4493 if (types & EV_CHILD)
3368 for (i = EV_PID_HASHSIZE; i--; ) 4494 for (i = (EV_PID_HASHSIZE); i--; )
3369 for (wl = childs [i]; wl; ) 4495 for (wl = childs [i]; wl; )
3370 { 4496 {
3371 wn = wl->next; 4497 wn = wl->next;
3372 cb (EV_A_ EV_CHILD, wl); 4498 cb (EV_A_ EV_CHILD, wl);
3373 wl = wn; 4499 wl = wn;
3374 } 4500 }
4501#endif
3375/* EV_STAT 0x00001000 /* stat data changed */ 4502/* EV_STAT 0x00001000 /* stat data changed */
3376/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4503/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3377} 4504}
3378#endif 4505#endif
3379 4506
3380#if EV_MULTIPLICITY 4507#if EV_MULTIPLICITY
3381 #include "ev_wrap.h" 4508 #include "ev_wrap.h"
3382#endif 4509#endif
3383 4510
3384#ifdef __cplusplus
3385}
3386#endif
3387

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