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Comparing libev/ev.c (file contents):
Revision 1.293 by root, Mon Jun 29 18:46:52 2009 UTC vs.
Revision 1.426 by root, Sun May 6 13:42:10 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
966#endif
967
968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
969
970#if EV_MINPRI == EV_MAXPRI
971# define ABSPRI(w) (((W)w), 0)
392#else 972#else
393# define inline_speed static inline
394#endif
395
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 973# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
974#endif
398 975
399#define EMPTY /* required for microsofts broken pseudo-c compiler */ 976#define EMPTY /* required for microsofts broken pseudo-c compiler */
400#define EMPTY2(a,b) /* used to suppress some warnings */ 977#define EMPTY2(a,b) /* used to suppress some warnings */
401 978
402typedef ev_watcher *W; 979typedef ev_watcher *W;
… …
406#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
407#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
408 985
409#if EV_USE_REALTIME 986#if EV_USE_REALTIME
410/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 987/* sig_atomic_t is used to avoid per-thread variables or locking but still */
411/* giving it a reasonably high chance of working on typical architetcures */ 988/* giving it a reasonably high chance of working on typical architectures */
412static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
413#endif 990#endif
414 991
415#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
416static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
417#endif 994#endif
418 995
996#ifndef EV_FD_TO_WIN32_HANDLE
997# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
998#endif
999#ifndef EV_WIN32_HANDLE_TO_FD
1000# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
1001#endif
1002#ifndef EV_WIN32_CLOSE_FD
1003# define EV_WIN32_CLOSE_FD(fd) close (fd)
1004#endif
1005
419#ifdef _WIN32 1006#ifdef _WIN32
420# include "ev_win32.c" 1007# include "ev_win32.c"
421#endif 1008#endif
422 1009
423/*****************************************************************************/ 1010/*****************************************************************************/
424 1011
1012/* define a suitable floor function (only used by periodics atm) */
1013
1014#if EV_USE_FLOOR
1015# include <math.h>
1016# define ev_floor(v) floor (v)
1017#else
1018
1019#include <float.h>
1020
1021/* a floor() replacement function, should be independent of ev_tstamp type */
1022static ev_tstamp noinline
1023ev_floor (ev_tstamp v)
1024{
1025 /* the choice of shift factor is not terribly important */
1026#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1027 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1028#else
1029 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1030#endif
1031
1032 /* argument too large for an unsigned long? */
1033 if (expect_false (v >= shift))
1034 {
1035 ev_tstamp f;
1036
1037 if (v == v - 1.)
1038 return v; /* very large number */
1039
1040 f = shift * ev_floor (v * (1. / shift));
1041 return f + ev_floor (v - f);
1042 }
1043
1044 /* special treatment for negative args? */
1045 if (expect_false (v < 0.))
1046 {
1047 ev_tstamp f = -ev_floor (-v);
1048
1049 return f - (f == v ? 0 : 1);
1050 }
1051
1052 /* fits into an unsigned long */
1053 return (unsigned long)v;
1054}
1055
1056#endif
1057
1058/*****************************************************************************/
1059
1060#ifdef __linux
1061# include <sys/utsname.h>
1062#endif
1063
1064static unsigned int noinline ecb_cold
1065ev_linux_version (void)
1066{
1067#ifdef __linux
1068 unsigned int v = 0;
1069 struct utsname buf;
1070 int i;
1071 char *p = buf.release;
1072
1073 if (uname (&buf))
1074 return 0;
1075
1076 for (i = 3+1; --i; )
1077 {
1078 unsigned int c = 0;
1079
1080 for (;;)
1081 {
1082 if (*p >= '0' && *p <= '9')
1083 c = c * 10 + *p++ - '0';
1084 else
1085 {
1086 p += *p == '.';
1087 break;
1088 }
1089 }
1090
1091 v = (v << 8) | c;
1092 }
1093
1094 return v;
1095#else
1096 return 0;
1097#endif
1098}
1099
1100/*****************************************************************************/
1101
1102#if EV_AVOID_STDIO
1103static void noinline ecb_cold
1104ev_printerr (const char *msg)
1105{
1106 write (STDERR_FILENO, msg, strlen (msg));
1107}
1108#endif
1109
425static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
426 1111
427void 1112void ecb_cold
428ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
429{ 1114{
430 syserr_cb = cb; 1115 syserr_cb = cb;
431} 1116}
432 1117
433static void noinline 1118static void noinline ecb_cold
434ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
435{ 1120{
436 if (!msg) 1121 if (!msg)
437 msg = "(libev) system error"; 1122 msg = "(libev) system error";
438 1123
439 if (syserr_cb) 1124 if (syserr_cb)
440 syserr_cb (msg); 1125 syserr_cb (msg);
441 else 1126 else
442 { 1127 {
1128#if EV_AVOID_STDIO
1129 ev_printerr (msg);
1130 ev_printerr (": ");
1131 ev_printerr (strerror (errno));
1132 ev_printerr ("\n");
1133#else
443 perror (msg); 1134 perror (msg);
1135#endif
444 abort (); 1136 abort ();
445 } 1137 }
446} 1138}
447 1139
448static void * 1140static void *
449ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
450{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
451 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
452 * implement realloc (x, 0) (as required by both ansi c-98 and 1147 * implement realloc (x, 0) (as required by both ansi c-89 and
453 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
454 */ 1149 */
455 1150
456 if (size) 1151 if (size)
457 return realloc (ptr, size); 1152 return realloc (ptr, size);
458 1153
459 free (ptr); 1154 free (ptr);
460 return 0; 1155 return 0;
1156#endif
461} 1157}
462 1158
463static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
464 1160
465void 1161void ecb_cold
466ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
467{ 1163{
468 alloc = cb; 1164 alloc = cb;
469} 1165}
470 1166
471inline_speed void * 1167inline_speed void *
… …
473{ 1169{
474 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
475 1171
476 if (!ptr && size) 1172 if (!ptr && size)
477 { 1173 {
1174#if EV_AVOID_STDIO
1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1176#else
478 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1178#endif
479 abort (); 1179 abort ();
480 } 1180 }
481 1181
482 return ptr; 1182 return ptr;
483} 1183}
… …
485#define ev_malloc(size) ev_realloc (0, (size)) 1185#define ev_malloc(size) ev_realloc (0, (size))
486#define ev_free(ptr) ev_realloc ((ptr), 0) 1186#define ev_free(ptr) ev_realloc ((ptr), 0)
487 1187
488/*****************************************************************************/ 1188/*****************************************************************************/
489 1189
1190/* set in reify when reification needed */
1191#define EV_ANFD_REIFY 1
1192
490/* file descriptor info structure */ 1193/* file descriptor info structure */
491typedef struct 1194typedef struct
492{ 1195{
493 WL head; 1196 WL head;
494 unsigned char events; /* the events watched for */ 1197 unsigned char events; /* the events watched for */
495 unsigned char reify; /* flag set when this ANFD needs reification */ 1198 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
496 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1199 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
497 unsigned char unused; 1200 unsigned char unused;
498#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
499 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
500#endif 1203#endif
501#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
502 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
503#endif 1209#endif
504} ANFD; 1210} ANFD;
505 1211
506/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
507typedef struct 1213typedef struct
… …
549 #undef VAR 1255 #undef VAR
550 }; 1256 };
551 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
552 1258
553 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
554 struct ev_loop *ev_default_loop_ptr; 1260 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
555 1261
556#else 1262#else
557 1263
558 ev_tstamp ev_rt_now; 1264 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
559 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
560 #include "ev_vars.h" 1266 #include "ev_vars.h"
561 #undef VAR 1267 #undef VAR
562 1268
563 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
564 1270
565#endif 1271#endif
566 1272
1273#if EV_FEATURE_API
1274# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
1275# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
1277#else
1278# define EV_RELEASE_CB (void)0
1279# define EV_ACQUIRE_CB (void)0
1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
1281#endif
1282
1283#define EVBREAK_RECURSE 0x80
1284
567/*****************************************************************************/ 1285/*****************************************************************************/
568 1286
569#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
570ev_tstamp 1288ev_tstamp
571ev_time (void) 1289ev_time (void) EV_THROW
572{ 1290{
573#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
574 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
575 { 1293 {
576 struct timespec ts; 1294 struct timespec ts;
… …
600 return ev_time (); 1318 return ev_time ();
601} 1319}
602 1320
603#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
604ev_tstamp 1322ev_tstamp
605ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
606{ 1324{
607 return ev_rt_now; 1325 return ev_rt_now;
608} 1326}
609#endif 1327#endif
610 1328
611void 1329void
612ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
613{ 1331{
614 if (delay > 0.) 1332 if (delay > 0.)
615 { 1333 {
616#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
617 struct timespec ts; 1335 struct timespec ts;
618 1336
619 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
620 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
621
622 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
623#elif defined(_WIN32) 1339#elif defined _WIN32
624 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
625#else 1341#else
626 struct timeval tv; 1342 struct timeval tv;
627 1343
628 tv.tv_sec = (time_t)delay;
629 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
630
631 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
632 /* somehting not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
633 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
634 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
635#endif 1349#endif
636 } 1350 }
637} 1351}
638 1352
639/*****************************************************************************/ 1353/*****************************************************************************/
640 1354
641#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 */
642 1356
643/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
644/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
645inline_size int 1359inline_size int
646array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
647{ 1361{
648 int ncur = cur + 1; 1362 int ncur = cur + 1;
649 1363
650 do 1364 do
651 ncur <<= 1; 1365 ncur <<= 1;
652 while (cnt > ncur); 1366 while (cnt > ncur);
653 1367
654 /* 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 */
655 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
656 { 1370 {
657 ncur *= elem; 1371 ncur *= elem;
658 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);
659 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
661 } 1375 }
662 1376
663 return ncur; 1377 return ncur;
664} 1378}
665 1379
666static noinline void * 1380static void * noinline ecb_cold
667array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
668{ 1382{
669 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
670 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
671} 1385}
… …
674 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
675 1389
676#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
677 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
678 { \ 1392 { \
679 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
680 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
681 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
682 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
683 } 1397 }
684 1398
… …
702pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
703{ 1417{
704} 1418}
705 1419
706void noinline 1420void noinline
707ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
708{ 1422{
709 W w_ = (W)w; 1423 W w_ = (W)w;
710 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
711 1425
712 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
716 w_->pending = ++pendingcnt [pri]; 1430 w_->pending = ++pendingcnt [pri];
717 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1431 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
718 pendings [pri][w_->pending - 1].w = w_; 1432 pendings [pri][w_->pending - 1].w = w_;
719 pendings [pri][w_->pending - 1].events = revents; 1433 pendings [pri][w_->pending - 1].events = revents;
720 } 1434 }
1435
1436 pendingpri = NUMPRI - 1;
721} 1437}
722 1438
723inline_speed void 1439inline_speed void
724feed_reverse (EV_P_ W w) 1440feed_reverse (EV_P_ W w)
725{ 1441{
… …
745} 1461}
746 1462
747/*****************************************************************************/ 1463/*****************************************************************************/
748 1464
749inline_speed void 1465inline_speed void
750fd_event (EV_P_ int fd, int revents) 1466fd_event_nocheck (EV_P_ int fd, int revents)
751{ 1467{
752 ANFD *anfd = anfds + fd; 1468 ANFD *anfd = anfds + fd;
753 ev_io *w; 1469 ev_io *w;
754 1470
755 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)
… …
759 if (ev) 1475 if (ev)
760 ev_feed_event (EV_A_ (W)w, ev); 1476 ev_feed_event (EV_A_ (W)w, ev);
761 } 1477 }
762} 1478}
763 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
764void 1491void
765ev_feed_fd_event (EV_P_ int fd, int revents) 1492ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
766{ 1493{
767 if (fd >= 0 && fd < anfdmax) 1494 if (fd >= 0 && fd < anfdmax)
768 fd_event (EV_A_ fd, revents); 1495 fd_event_nocheck (EV_A_ fd, revents);
769} 1496}
770 1497
771/* make sure the external fd watch events are in-sync */ 1498/* make sure the external fd watch events are in-sync */
772/* with the kernel/libev internal state */ 1499/* with the kernel/libev internal state */
773inline_size void 1500inline_size void
774fd_reify (EV_P) 1501fd_reify (EV_P)
775{ 1502{
776 int i; 1503 int i;
777 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
778 for (i = 0; i < fdchangecnt; ++i) 1530 for (i = 0; i < fdchangecnt; ++i)
779 { 1531 {
780 int fd = fdchanges [i]; 1532 int fd = fdchanges [i];
781 ANFD *anfd = anfds + fd; 1533 ANFD *anfd = anfds + fd;
782 ev_io *w; 1534 ev_io *w;
783 1535
784 unsigned char events = 0; 1536 unsigned char o_events = anfd->events;
1537 unsigned char o_reify = anfd->reify;
785 1538
786 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1539 anfd->reify = 0;
787 events |= (unsigned char)w->events;
788 1540
789#if EV_SELECT_IS_WINSOCKET 1541 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
790 if (events)
791 { 1542 {
792 unsigned long arg; 1543 anfd->events = 0;
793 #ifdef EV_FD_TO_WIN32_HANDLE 1544
794 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1545 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
795 #else 1546 anfd->events |= (unsigned char)w->events;
796 anfd->handle = _get_osfhandle (fd); 1547
797 #endif 1548 if (o_events != anfd->events)
798 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1549 o_reify = EV__IOFDSET; /* actually |= */
799 } 1550 }
800#endif
801 1551
802 { 1552 if (o_reify & EV__IOFDSET)
803 unsigned char o_events = anfd->events;
804 unsigned char o_reify = anfd->reify;
805
806 anfd->reify = 0;
807 anfd->events = events;
808
809 if (o_events != events || o_reify & EV__IOFDSET)
810 backend_modify (EV_A_ fd, o_events, events); 1553 backend_modify (EV_A_ fd, o_events, anfd->events);
811 }
812 } 1554 }
813 1555
814 fdchangecnt = 0; 1556 fdchangecnt = 0;
815} 1557}
816 1558
… …
828 fdchanges [fdchangecnt - 1] = fd; 1570 fdchanges [fdchangecnt - 1] = fd;
829 } 1571 }
830} 1572}
831 1573
832/* 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 */
833inline_speed void 1575inline_speed void ecb_cold
834fd_kill (EV_P_ int fd) 1576fd_kill (EV_P_ int fd)
835{ 1577{
836 ev_io *w; 1578 ev_io *w;
837 1579
838 while ((w = (ev_io *)anfds [fd].head)) 1580 while ((w = (ev_io *)anfds [fd].head))
… …
840 ev_io_stop (EV_A_ w); 1582 ev_io_stop (EV_A_ w);
841 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);
842 } 1584 }
843} 1585}
844 1586
845/* check whether the given fd is atcually valid, for error recovery */ 1587/* check whether the given fd is actually valid, for error recovery */
846inline_size int 1588inline_size int ecb_cold
847fd_valid (int fd) 1589fd_valid (int fd)
848{ 1590{
849#ifdef _WIN32 1591#ifdef _WIN32
850 return _get_osfhandle (fd) != -1; 1592 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
851#else 1593#else
852 return fcntl (fd, F_GETFD) != -1; 1594 return fcntl (fd, F_GETFD) != -1;
853#endif 1595#endif
854} 1596}
855 1597
856/* called on EBADF to verify fds */ 1598/* called on EBADF to verify fds */
857static void noinline 1599static void noinline ecb_cold
858fd_ebadf (EV_P) 1600fd_ebadf (EV_P)
859{ 1601{
860 int fd; 1602 int fd;
861 1603
862 for (fd = 0; fd < anfdmax; ++fd) 1604 for (fd = 0; fd < anfdmax; ++fd)
… …
864 if (!fd_valid (fd) && errno == EBADF) 1606 if (!fd_valid (fd) && errno == EBADF)
865 fd_kill (EV_A_ fd); 1607 fd_kill (EV_A_ fd);
866} 1608}
867 1609
868/* 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 */
869static void noinline 1611static void noinline ecb_cold
870fd_enomem (EV_P) 1612fd_enomem (EV_P)
871{ 1613{
872 int fd; 1614 int fd;
873 1615
874 for (fd = anfdmax; fd--; ) 1616 for (fd = anfdmax; fd--; )
875 if (anfds [fd].events) 1617 if (anfds [fd].events)
876 { 1618 {
877 fd_kill (EV_A_ fd); 1619 fd_kill (EV_A_ fd);
878 return; 1620 break;
879 } 1621 }
880} 1622}
881 1623
882/* 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 */
883static void noinline 1625static void noinline
… …
888 for (fd = 0; fd < anfdmax; ++fd) 1630 for (fd = 0; fd < anfdmax; ++fd)
889 if (anfds [fd].events) 1631 if (anfds [fd].events)
890 { 1632 {
891 anfds [fd].events = 0; 1633 anfds [fd].events = 0;
892 anfds [fd].emask = 0; 1634 anfds [fd].emask = 0;
893 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1635 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
894 } 1636 }
895} 1637}
896 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
897/*****************************************************************************/ 1653/*****************************************************************************/
898 1654
899/* 1655/*
900 * 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
901 * 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
902 * the branching factor of the d-tree. 1658 * the branching factor of the d-tree.
903 */ 1659 */
904 1660
905/* 1661/*
… …
973 1729
974 for (;;) 1730 for (;;)
975 { 1731 {
976 int c = k << 1; 1732 int c = k << 1;
977 1733
978 if (c > N + HEAP0 - 1) 1734 if (c >= N + HEAP0)
979 break; 1735 break;
980 1736
981 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])
982 ? 1 : 0; 1738 ? 1 : 0;
983 1739
… …
1019 1775
1020/* move an element suitably so it is in a correct place */ 1776/* move an element suitably so it is in a correct place */
1021inline_size void 1777inline_size void
1022adjustheap (ANHE *heap, int N, int k) 1778adjustheap (ANHE *heap, int N, int k)
1023{ 1779{
1024 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)]))
1025 upheap (heap, k); 1781 upheap (heap, k);
1026 else 1782 else
1027 downheap (heap, N, k); 1783 downheap (heap, N, k);
1028} 1784}
1029 1785
… …
1042/*****************************************************************************/ 1798/*****************************************************************************/
1043 1799
1044/* associate signal watchers to a signal signal */ 1800/* associate signal watchers to a signal signal */
1045typedef struct 1801typedef struct
1046{ 1802{
1803 EV_ATOMIC_T pending;
1804#if EV_MULTIPLICITY
1805 EV_P;
1806#endif
1047 WL head; 1807 WL head;
1048 EV_ATOMIC_T gotsig;
1049} ANSIG; 1808} ANSIG;
1050 1809
1051static ANSIG *signals; 1810static ANSIG signals [EV_NSIG - 1];
1052static int signalmax;
1053
1054static EV_ATOMIC_T gotsig;
1055 1811
1056/*****************************************************************************/ 1812/*****************************************************************************/
1057 1813
1058/* used to prepare libev internal fd's */ 1814#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1059/* this is not fork-safe */
1060inline_speed void
1061fd_intern (int fd)
1062{
1063#ifdef _WIN32
1064 unsigned long arg = 1;
1065 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1066#else
1067 fcntl (fd, F_SETFD, FD_CLOEXEC);
1068 fcntl (fd, F_SETFL, O_NONBLOCK);
1069#endif
1070}
1071 1815
1072static void noinline 1816static void noinline ecb_cold
1073evpipe_init (EV_P) 1817evpipe_init (EV_P)
1074{ 1818{
1075 if (!ev_is_active (&pipe_w)) 1819 if (!ev_is_active (&pipe_w))
1076 { 1820 {
1077#if EV_USE_EVENTFD 1821# if EV_USE_EVENTFD
1822 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1823 if (evfd < 0 && errno == EINVAL)
1078 if ((evfd = eventfd (0, 0)) >= 0) 1824 evfd = eventfd (0, 0);
1825
1826 if (evfd >= 0)
1079 { 1827 {
1080 evpipe [0] = -1; 1828 evpipe [0] = -1;
1081 fd_intern (evfd); 1829 fd_intern (evfd); /* doing it twice doesn't hurt */
1082 ev_io_set (&pipe_w, evfd, EV_READ); 1830 ev_io_set (&pipe_w, evfd, EV_READ);
1083 } 1831 }
1084 else 1832 else
1085#endif 1833# endif
1086 { 1834 {
1087 while (pipe (evpipe)) 1835 while (pipe (evpipe))
1088 ev_syserr ("(libev) error creating signal/async pipe"); 1836 ev_syserr ("(libev) error creating signal/async pipe");
1089 1837
1090 fd_intern (evpipe [0]); 1838 fd_intern (evpipe [0]);
… …
1095 ev_io_start (EV_A_ &pipe_w); 1843 ev_io_start (EV_A_ &pipe_w);
1096 ev_unref (EV_A); /* watcher should not keep loop alive */ 1844 ev_unref (EV_A); /* watcher should not keep loop alive */
1097 } 1845 }
1098} 1846}
1099 1847
1100inline_size void 1848inline_speed void
1101evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1849evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1102{ 1850{
1103 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)
1104 { 1865 {
1866 int old_errno;
1867
1868 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1869
1105 int old_errno = errno; /* save errno because write might clobber it */ 1870 old_errno = errno; /* save errno because write will clobber it */
1106
1107 *flag = 1;
1108 1871
1109#if EV_USE_EVENTFD 1872#if EV_USE_EVENTFD
1110 if (evfd >= 0) 1873 if (evfd >= 0)
1111 { 1874 {
1112 uint64_t counter = 1; 1875 uint64_t counter = 1;
1113 write (evfd, &counter, sizeof (uint64_t)); 1876 write (evfd, &counter, sizeof (uint64_t));
1114 } 1877 }
1115 else 1878 else
1116#endif 1879#endif
1880 {
1881 /* win32 people keep sending patches that change this write() to send() */
1882 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1883 /* so when you think this write should be a send instead, please find out */
1884 /* where your send() is from - it's definitely not the microsoft send, and */
1885 /* tell me. thank you. */
1886 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1887 /* check the ev documentation on how to use this flag */
1117 write (evpipe [1], &old_errno, 1); 1888 write (evpipe [1], &(evpipe [1]), 1);
1889 }
1118 1890
1119 errno = old_errno; 1891 errno = old_errno;
1120 } 1892 }
1121} 1893}
1122 1894
1123/* called whenever the libev signal pipe */ 1895/* called whenever the libev signal pipe */
1124/* got some events (signal, async) */ 1896/* got some events (signal, async) */
1125static void 1897static void
1126pipecb (EV_P_ ev_io *iow, int revents) 1898pipecb (EV_P_ ev_io *iow, int revents)
1127{ 1899{
1900 int i;
1901
1902 if (revents & EV_READ)
1903 {
1128#if EV_USE_EVENTFD 1904#if EV_USE_EVENTFD
1129 if (evfd >= 0) 1905 if (evfd >= 0)
1130 { 1906 {
1131 uint64_t counter; 1907 uint64_t counter;
1132 read (evfd, &counter, sizeof (uint64_t)); 1908 read (evfd, &counter, sizeof (uint64_t));
1133 } 1909 }
1134 else 1910 else
1135#endif 1911#endif
1136 { 1912 {
1137 char dummy; 1913 char dummy;
1914 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1138 read (evpipe [0], &dummy, 1); 1915 read (evpipe [0], &dummy, 1);
1916 }
1917 }
1918
1919 pipe_write_skipped = 0;
1920
1921 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1922
1923#if EV_SIGNAL_ENABLE
1924 if (sig_pending)
1139 } 1925 {
1926 sig_pending = 0;
1140 1927
1141 if (gotsig && ev_is_default_loop (EV_A)) 1928 ECB_MEMORY_FENCE_RELEASE;
1142 {
1143 int signum;
1144 gotsig = 0;
1145 1929
1146 for (signum = signalmax; signum--; ) 1930 for (i = EV_NSIG - 1; i--; )
1147 if (signals [signum].gotsig) 1931 if (expect_false (signals [i].pending))
1148 ev_feed_signal_event (EV_A_ signum + 1); 1932 ev_feed_signal_event (EV_A_ i + 1);
1149 } 1933 }
1934#endif
1150 1935
1151#if EV_ASYNC_ENABLE 1936#if EV_ASYNC_ENABLE
1152 if (gotasync) 1937 if (async_pending)
1153 { 1938 {
1154 int i; 1939 async_pending = 0;
1155 gotasync = 0; 1940
1941 ECB_MEMORY_FENCE_RELEASE;
1156 1942
1157 for (i = asynccnt; i--; ) 1943 for (i = asynccnt; i--; )
1158 if (asyncs [i]->sent) 1944 if (asyncs [i]->sent)
1159 { 1945 {
1160 asyncs [i]->sent = 0; 1946 asyncs [i]->sent = 0;
… …
1164#endif 1950#endif
1165} 1951}
1166 1952
1167/*****************************************************************************/ 1953/*****************************************************************************/
1168 1954
1955void
1956ev_feed_signal (int signum) EV_THROW
1957{
1958#if EV_MULTIPLICITY
1959 EV_P = signals [signum - 1].loop;
1960
1961 if (!EV_A)
1962 return;
1963#endif
1964
1965 if (!ev_active (&pipe_w))
1966 return;
1967
1968 signals [signum - 1].pending = 1;
1969 evpipe_write (EV_A_ &sig_pending);
1970}
1971
1169static void 1972static void
1170ev_sighandler (int signum) 1973ev_sighandler (int signum)
1171{ 1974{
1975#ifdef _WIN32
1976 signal (signum, ev_sighandler);
1977#endif
1978
1979 ev_feed_signal (signum);
1980}
1981
1982void noinline
1983ev_feed_signal_event (EV_P_ int signum) EV_THROW
1984{
1985 WL w;
1986
1987 if (expect_false (signum <= 0 || signum > EV_NSIG))
1988 return;
1989
1990 --signum;
1991
1172#if EV_MULTIPLICITY 1992#if EV_MULTIPLICITY
1173 struct ev_loop *loop = &default_loop_struct; 1993 /* it is permissible to try to feed a signal to the wrong loop */
1174#endif 1994 /* or, likely more useful, feeding a signal nobody is waiting for */
1175 1995
1176#if _WIN32 1996 if (expect_false (signals [signum].loop != EV_A))
1177 signal (signum, ev_sighandler);
1178#endif
1179
1180 signals [signum - 1].gotsig = 1;
1181 evpipe_write (EV_A_ &gotsig);
1182}
1183
1184void noinline
1185ev_feed_signal_event (EV_P_ int signum)
1186{
1187 WL w;
1188
1189#if EV_MULTIPLICITY
1190 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1191#endif
1192
1193 --signum;
1194
1195 if (signum < 0 || signum >= signalmax)
1196 return; 1997 return;
1998#endif
1197 1999
1198 signals [signum].gotsig = 0; 2000 signals [signum].pending = 0;
1199 2001
1200 for (w = signals [signum].head; w; w = w->next) 2002 for (w = signals [signum].head; w; w = w->next)
1201 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2003 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1202} 2004}
1203 2005
2006#if EV_USE_SIGNALFD
2007static void
2008sigfdcb (EV_P_ ev_io *iow, int revents)
2009{
2010 struct signalfd_siginfo si[2], *sip; /* these structs are big */
2011
2012 for (;;)
2013 {
2014 ssize_t res = read (sigfd, si, sizeof (si));
2015
2016 /* not ISO-C, as res might be -1, but works with SuS */
2017 for (sip = si; (char *)sip < (char *)si + res; ++sip)
2018 ev_feed_signal_event (EV_A_ sip->ssi_signo);
2019
2020 if (res < (ssize_t)sizeof (si))
2021 break;
2022 }
2023}
2024#endif
2025
2026#endif
2027
1204/*****************************************************************************/ 2028/*****************************************************************************/
1205 2029
2030#if EV_CHILD_ENABLE
1206static WL childs [EV_PID_HASHSIZE]; 2031static WL childs [EV_PID_HASHSIZE];
1207
1208#ifndef _WIN32
1209 2032
1210static ev_signal childev; 2033static ev_signal childev;
1211 2034
1212#ifndef WIFCONTINUED 2035#ifndef WIFCONTINUED
1213# define WIFCONTINUED(status) 0 2036# define WIFCONTINUED(status) 0
… …
1218child_reap (EV_P_ int chain, int pid, int status) 2041child_reap (EV_P_ int chain, int pid, int status)
1219{ 2042{
1220 ev_child *w; 2043 ev_child *w;
1221 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2044 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1222 2045
1223 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2046 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1224 { 2047 {
1225 if ((w->pid == pid || !w->pid) 2048 if ((w->pid == pid || !w->pid)
1226 && (!traced || (w->flags & 1))) 2049 && (!traced || (w->flags & 1)))
1227 { 2050 {
1228 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2051 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1253 /* make sure we are called again until all children have been reaped */ 2076 /* make sure we are called again until all children have been reaped */
1254 /* we need to do it this way so that the callback gets called before we continue */ 2077 /* we need to do it this way so that the callback gets called before we continue */
1255 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2078 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1256 2079
1257 child_reap (EV_A_ pid, pid, status); 2080 child_reap (EV_A_ pid, pid, status);
1258 if (EV_PID_HASHSIZE > 1) 2081 if ((EV_PID_HASHSIZE) > 1)
1259 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2082 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1260} 2083}
1261 2084
1262#endif 2085#endif
1263 2086
1264/*****************************************************************************/ 2087/*****************************************************************************/
1265 2088
2089#if EV_USE_IOCP
2090# include "ev_iocp.c"
2091#endif
1266#if EV_USE_PORT 2092#if EV_USE_PORT
1267# include "ev_port.c" 2093# include "ev_port.c"
1268#endif 2094#endif
1269#if EV_USE_KQUEUE 2095#if EV_USE_KQUEUE
1270# include "ev_kqueue.c" 2096# include "ev_kqueue.c"
… …
1277#endif 2103#endif
1278#if EV_USE_SELECT 2104#if EV_USE_SELECT
1279# include "ev_select.c" 2105# include "ev_select.c"
1280#endif 2106#endif
1281 2107
1282int 2108int ecb_cold
1283ev_version_major (void) 2109ev_version_major (void) EV_THROW
1284{ 2110{
1285 return EV_VERSION_MAJOR; 2111 return EV_VERSION_MAJOR;
1286} 2112}
1287 2113
1288int 2114int ecb_cold
1289ev_version_minor (void) 2115ev_version_minor (void) EV_THROW
1290{ 2116{
1291 return EV_VERSION_MINOR; 2117 return EV_VERSION_MINOR;
1292} 2118}
1293 2119
1294/* return true if we are running with elevated privileges and should ignore env variables */ 2120/* return true if we are running with elevated privileges and should ignore env variables */
1295int inline_size 2121int inline_size ecb_cold
1296enable_secure (void) 2122enable_secure (void)
1297{ 2123{
1298#ifdef _WIN32 2124#ifdef _WIN32
1299 return 0; 2125 return 0;
1300#else 2126#else
1301 return getuid () != geteuid () 2127 return getuid () != geteuid ()
1302 || getgid () != getegid (); 2128 || getgid () != getegid ();
1303#endif 2129#endif
1304} 2130}
1305 2131
1306unsigned int 2132unsigned int ecb_cold
1307ev_supported_backends (void) 2133ev_supported_backends (void) EV_THROW
1308{ 2134{
1309 unsigned int flags = 0; 2135 unsigned int flags = 0;
1310 2136
1311 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2137 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1312 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2138 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1315 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2141 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1316 2142
1317 return flags; 2143 return flags;
1318} 2144}
1319 2145
1320unsigned int 2146unsigned int ecb_cold
1321ev_recommended_backends (void) 2147ev_recommended_backends (void) EV_THROW
1322{ 2148{
1323 unsigned int flags = ev_supported_backends (); 2149 unsigned int flags = ev_supported_backends ();
1324 2150
1325#ifndef __NetBSD__ 2151#ifndef __NetBSD__
1326 /* kqueue is borked on everything but netbsd apparently */ 2152 /* kqueue is borked on everything but netbsd apparently */
… …
1330#ifdef __APPLE__ 2156#ifdef __APPLE__
1331 /* only select works correctly on that "unix-certified" platform */ 2157 /* only select works correctly on that "unix-certified" platform */
1332 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2158 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1333 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2159 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1334#endif 2160#endif
2161#ifdef __FreeBSD__
2162 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2163#endif
1335 2164
1336 return flags; 2165 return flags;
1337} 2166}
1338 2167
2168unsigned int ecb_cold
2169ev_embeddable_backends (void) EV_THROW
2170{
2171 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2172
2173 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2174 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2175 flags &= ~EVBACKEND_EPOLL;
2176
2177 return flags;
2178}
2179
1339unsigned int 2180unsigned int
1340ev_embeddable_backends (void) 2181ev_backend (EV_P) EV_THROW
1341{ 2182{
1342 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2183 return backend;
1343
1344 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1345 /* please fix it and tell me how to detect the fix */
1346 flags &= ~EVBACKEND_EPOLL;
1347
1348 return flags;
1349} 2184}
1350 2185
2186#if EV_FEATURE_API
1351unsigned int 2187unsigned int
1352ev_backend (EV_P) 2188ev_iteration (EV_P) EV_THROW
1353{ 2189{
1354 return backend; 2190 return loop_count;
1355} 2191}
1356 2192
1357unsigned int 2193unsigned int
1358ev_loop_count (EV_P) 2194ev_depth (EV_P) EV_THROW
1359{ 2195{
1360 return loop_count; 2196 return loop_depth;
1361} 2197}
1362 2198
1363void 2199void
1364ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2200ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1365{ 2201{
1366 io_blocktime = interval; 2202 io_blocktime = interval;
1367} 2203}
1368 2204
1369void 2205void
1370ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1371{ 2207{
1372 timeout_blocktime = interval; 2208 timeout_blocktime = interval;
1373} 2209}
1374 2210
2211void
2212ev_set_userdata (EV_P_ void *data) EV_THROW
2213{
2214 userdata = data;
2215}
2216
2217void *
2218ev_userdata (EV_P) EV_THROW
2219{
2220 return userdata;
2221}
2222
2223void
2224ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2225{
2226 invoke_cb = invoke_pending_cb;
2227}
2228
2229void
2230ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2231{
2232 release_cb = release;
2233 acquire_cb = acquire;
2234}
2235#endif
2236
1375/* initialise a loop structure, must be zero-initialised */ 2237/* initialise a loop structure, must be zero-initialised */
1376static void noinline 2238static void noinline ecb_cold
1377loop_init (EV_P_ unsigned int flags) 2239loop_init (EV_P_ unsigned int flags) EV_THROW
1378{ 2240{
1379 if (!backend) 2241 if (!backend)
1380 { 2242 {
2243 origflags = flags;
2244
1381#if EV_USE_REALTIME 2245#if EV_USE_REALTIME
1382 if (!have_realtime) 2246 if (!have_realtime)
1383 { 2247 {
1384 struct timespec ts; 2248 struct timespec ts;
1385 2249
… …
1396 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2260 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1397 have_monotonic = 1; 2261 have_monotonic = 1;
1398 } 2262 }
1399#endif 2263#endif
1400 2264
1401 ev_rt_now = ev_time ();
1402 mn_now = get_clock ();
1403 now_floor = mn_now;
1404 rtmn_diff = ev_rt_now - mn_now;
1405
1406 io_blocktime = 0.;
1407 timeout_blocktime = 0.;
1408 backend = 0;
1409 backend_fd = -1;
1410 gotasync = 0;
1411#if EV_USE_INOTIFY
1412 fs_fd = -2;
1413#endif
1414
1415 /* pid check not overridable via env */ 2265 /* pid check not overridable via env */
1416#ifndef _WIN32 2266#ifndef _WIN32
1417 if (flags & EVFLAG_FORKCHECK) 2267 if (flags & EVFLAG_FORKCHECK)
1418 curpid = getpid (); 2268 curpid = getpid ();
1419#endif 2269#endif
… …
1421 if (!(flags & EVFLAG_NOENV) 2271 if (!(flags & EVFLAG_NOENV)
1422 && !enable_secure () 2272 && !enable_secure ()
1423 && getenv ("LIBEV_FLAGS")) 2273 && getenv ("LIBEV_FLAGS"))
1424 flags = atoi (getenv ("LIBEV_FLAGS")); 2274 flags = atoi (getenv ("LIBEV_FLAGS"));
1425 2275
1426 if (!(flags & 0x0000ffffU)) 2276 ev_rt_now = ev_time ();
2277 mn_now = get_clock ();
2278 now_floor = mn_now;
2279 rtmn_diff = ev_rt_now - mn_now;
2280#if EV_FEATURE_API
2281 invoke_cb = ev_invoke_pending;
2282#endif
2283
2284 io_blocktime = 0.;
2285 timeout_blocktime = 0.;
2286 backend = 0;
2287 backend_fd = -1;
2288 sig_pending = 0;
2289#if EV_ASYNC_ENABLE
2290 async_pending = 0;
2291#endif
2292 pipe_write_skipped = 0;
2293 pipe_write_wanted = 0;
2294#if EV_USE_INOTIFY
2295 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2296#endif
2297#if EV_USE_SIGNALFD
2298 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2299#endif
2300
2301 if (!(flags & EVBACKEND_MASK))
1427 flags |= ev_recommended_backends (); 2302 flags |= ev_recommended_backends ();
1428 2303
2304#if EV_USE_IOCP
2305 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2306#endif
1429#if EV_USE_PORT 2307#if EV_USE_PORT
1430 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2308 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1431#endif 2309#endif
1432#if EV_USE_KQUEUE 2310#if EV_USE_KQUEUE
1433 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2311 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1442 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1443#endif 2321#endif
1444 2322
1445 ev_prepare_init (&pending_w, pendingcb); 2323 ev_prepare_init (&pending_w, pendingcb);
1446 2324
2325#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1447 ev_init (&pipe_w, pipecb); 2326 ev_init (&pipe_w, pipecb);
1448 ev_set_priority (&pipe_w, EV_MAXPRI); 2327 ev_set_priority (&pipe_w, EV_MAXPRI);
2328#endif
1449 } 2329 }
1450} 2330}
1451 2331
1452/* free up a loop structure */ 2332/* free up a loop structure */
1453static void noinline 2333void ecb_cold
1454loop_destroy (EV_P) 2334ev_loop_destroy (EV_P)
1455{ 2335{
1456 int i; 2336 int i;
1457 2337
2338#if EV_MULTIPLICITY
2339 /* mimic free (0) */
2340 if (!EV_A)
2341 return;
2342#endif
2343
2344#if EV_CLEANUP_ENABLE
2345 /* queue cleanup watchers (and execute them) */
2346 if (expect_false (cleanupcnt))
2347 {
2348 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2349 EV_INVOKE_PENDING;
2350 }
2351#endif
2352
2353#if EV_CHILD_ENABLE
2354 if (ev_is_active (&childev))
2355 {
2356 ev_ref (EV_A); /* child watcher */
2357 ev_signal_stop (EV_A_ &childev);
2358 }
2359#endif
2360
1458 if (ev_is_active (&pipe_w)) 2361 if (ev_is_active (&pipe_w))
1459 { 2362 {
1460 ev_ref (EV_A); /* signal watcher */ 2363 /*ev_ref (EV_A);*/
1461 ev_io_stop (EV_A_ &pipe_w); 2364 /*ev_io_stop (EV_A_ &pipe_w);*/
1462 2365
1463#if EV_USE_EVENTFD 2366#if EV_USE_EVENTFD
1464 if (evfd >= 0) 2367 if (evfd >= 0)
1465 close (evfd); 2368 close (evfd);
1466#endif 2369#endif
1467 2370
1468 if (evpipe [0] >= 0) 2371 if (evpipe [0] >= 0)
1469 { 2372 {
1470 close (evpipe [0]); 2373 EV_WIN32_CLOSE_FD (evpipe [0]);
1471 close (evpipe [1]); 2374 EV_WIN32_CLOSE_FD (evpipe [1]);
1472 } 2375 }
1473 } 2376 }
2377
2378#if EV_USE_SIGNALFD
2379 if (ev_is_active (&sigfd_w))
2380 close (sigfd);
2381#endif
1474 2382
1475#if EV_USE_INOTIFY 2383#if EV_USE_INOTIFY
1476 if (fs_fd >= 0) 2384 if (fs_fd >= 0)
1477 close (fs_fd); 2385 close (fs_fd);
1478#endif 2386#endif
1479 2387
1480 if (backend_fd >= 0) 2388 if (backend_fd >= 0)
1481 close (backend_fd); 2389 close (backend_fd);
1482 2390
2391#if EV_USE_IOCP
2392 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2393#endif
1483#if EV_USE_PORT 2394#if EV_USE_PORT
1484 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2395 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1485#endif 2396#endif
1486#if EV_USE_KQUEUE 2397#if EV_USE_KQUEUE
1487 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2398 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1502#if EV_IDLE_ENABLE 2413#if EV_IDLE_ENABLE
1503 array_free (idle, [i]); 2414 array_free (idle, [i]);
1504#endif 2415#endif
1505 } 2416 }
1506 2417
1507 ev_free (anfds); anfdmax = 0; 2418 ev_free (anfds); anfds = 0; anfdmax = 0;
1508 2419
1509 /* have to use the microsoft-never-gets-it-right macro */ 2420 /* have to use the microsoft-never-gets-it-right macro */
1510 array_free (rfeed, EMPTY); 2421 array_free (rfeed, EMPTY);
1511 array_free (fdchange, EMPTY); 2422 array_free (fdchange, EMPTY);
1512 array_free (timer, EMPTY); 2423 array_free (timer, EMPTY);
… …
1514 array_free (periodic, EMPTY); 2425 array_free (periodic, EMPTY);
1515#endif 2426#endif
1516#if EV_FORK_ENABLE 2427#if EV_FORK_ENABLE
1517 array_free (fork, EMPTY); 2428 array_free (fork, EMPTY);
1518#endif 2429#endif
2430#if EV_CLEANUP_ENABLE
2431 array_free (cleanup, EMPTY);
2432#endif
1519 array_free (prepare, EMPTY); 2433 array_free (prepare, EMPTY);
1520 array_free (check, EMPTY); 2434 array_free (check, EMPTY);
1521#if EV_ASYNC_ENABLE 2435#if EV_ASYNC_ENABLE
1522 array_free (async, EMPTY); 2436 array_free (async, EMPTY);
1523#endif 2437#endif
1524 2438
1525 backend = 0; 2439 backend = 0;
2440
2441#if EV_MULTIPLICITY
2442 if (ev_is_default_loop (EV_A))
2443#endif
2444 ev_default_loop_ptr = 0;
2445#if EV_MULTIPLICITY
2446 else
2447 ev_free (EV_A);
2448#endif
1526} 2449}
1527 2450
1528#if EV_USE_INOTIFY 2451#if EV_USE_INOTIFY
1529inline_size void infy_fork (EV_P); 2452inline_size void infy_fork (EV_P);
1530#endif 2453#endif
… …
1545 infy_fork (EV_A); 2468 infy_fork (EV_A);
1546#endif 2469#endif
1547 2470
1548 if (ev_is_active (&pipe_w)) 2471 if (ev_is_active (&pipe_w))
1549 { 2472 {
1550 /* this "locks" the handlers against writing to the pipe */ 2473 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1551 /* while we modify the fd vars */
1552 gotsig = 1;
1553#if EV_ASYNC_ENABLE
1554 gotasync = 1;
1555#endif
1556 2474
1557 ev_ref (EV_A); 2475 ev_ref (EV_A);
1558 ev_io_stop (EV_A_ &pipe_w); 2476 ev_io_stop (EV_A_ &pipe_w);
1559 2477
1560#if EV_USE_EVENTFD 2478#if EV_USE_EVENTFD
… …
1562 close (evfd); 2480 close (evfd);
1563#endif 2481#endif
1564 2482
1565 if (evpipe [0] >= 0) 2483 if (evpipe [0] >= 0)
1566 { 2484 {
1567 close (evpipe [0]); 2485 EV_WIN32_CLOSE_FD (evpipe [0]);
1568 close (evpipe [1]); 2486 EV_WIN32_CLOSE_FD (evpipe [1]);
1569 } 2487 }
1570 2488
2489#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1571 evpipe_init (EV_A); 2490 evpipe_init (EV_A);
1572 /* now iterate over everything, in case we missed something */ 2491 /* now iterate over everything, in case we missed something */
1573 pipecb (EV_A_ &pipe_w, EV_READ); 2492 pipecb (EV_A_ &pipe_w, EV_READ);
2493#endif
1574 } 2494 }
1575 2495
1576 postfork = 0; 2496 postfork = 0;
1577} 2497}
1578 2498
1579#if EV_MULTIPLICITY 2499#if EV_MULTIPLICITY
1580 2500
1581struct ev_loop * 2501struct ev_loop * ecb_cold
1582ev_loop_new (unsigned int flags) 2502ev_loop_new (unsigned int flags) EV_THROW
1583{ 2503{
1584 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2504 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1585 2505
1586 memset (loop, 0, sizeof (struct ev_loop)); 2506 memset (EV_A, 0, sizeof (struct ev_loop));
1587
1588 loop_init (EV_A_ flags); 2507 loop_init (EV_A_ flags);
1589 2508
1590 if (ev_backend (EV_A)) 2509 if (ev_backend (EV_A))
1591 return loop; 2510 return EV_A;
1592 2511
2512 ev_free (EV_A);
1593 return 0; 2513 return 0;
1594} 2514}
1595 2515
1596void 2516#endif /* multiplicity */
1597ev_loop_destroy (EV_P)
1598{
1599 loop_destroy (EV_A);
1600 ev_free (loop);
1601}
1602
1603void
1604ev_loop_fork (EV_P)
1605{
1606 postfork = 1; /* must be in line with ev_default_fork */
1607}
1608 2517
1609#if EV_VERIFY 2518#if EV_VERIFY
1610static void noinline 2519static void noinline ecb_cold
1611verify_watcher (EV_P_ W w) 2520verify_watcher (EV_P_ W w)
1612{ 2521{
1613 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2522 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1614 2523
1615 if (w->pending) 2524 if (w->pending)
1616 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2525 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1617} 2526}
1618 2527
1619static void noinline 2528static void noinline ecb_cold
1620verify_heap (EV_P_ ANHE *heap, int N) 2529verify_heap (EV_P_ ANHE *heap, int N)
1621{ 2530{
1622 int i; 2531 int i;
1623 2532
1624 for (i = HEAP0; i < N + HEAP0; ++i) 2533 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1629 2538
1630 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2539 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1631 } 2540 }
1632} 2541}
1633 2542
1634static void noinline 2543static void noinline ecb_cold
1635array_verify (EV_P_ W *ws, int cnt) 2544array_verify (EV_P_ W *ws, int cnt)
1636{ 2545{
1637 while (cnt--) 2546 while (cnt--)
1638 { 2547 {
1639 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2548 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1640 verify_watcher (EV_A_ ws [cnt]); 2549 verify_watcher (EV_A_ ws [cnt]);
1641 } 2550 }
1642} 2551}
1643#endif 2552#endif
1644 2553
1645void 2554#if EV_FEATURE_API
1646ev_loop_verify (EV_P) 2555void ecb_cold
2556ev_verify (EV_P) EV_THROW
1647{ 2557{
1648#if EV_VERIFY 2558#if EV_VERIFY
1649 int i; 2559 int i, j;
1650 WL w; 2560 WL w, w2;
1651 2561
1652 assert (activecnt >= -1); 2562 assert (activecnt >= -1);
1653 2563
1654 assert (fdchangemax >= fdchangecnt); 2564 assert (fdchangemax >= fdchangecnt);
1655 for (i = 0; i < fdchangecnt; ++i) 2565 for (i = 0; i < fdchangecnt; ++i)
1656 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2566 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1657 2567
1658 assert (anfdmax >= 0); 2568 assert (anfdmax >= 0);
1659 for (i = 0; i < anfdmax; ++i) 2569 for (i = j = 0; i < anfdmax; ++i)
1660 for (w = anfds [i].head; w; w = w->next) 2570 for (w = w2 = anfds [i].head; w; w = w->next)
1661 { 2571 {
1662 verify_watcher (EV_A_ (W)w); 2572 verify_watcher (EV_A_ (W)w);
2573
2574 if (++j & 1)
2575 w2 = w2->next;
2576
2577 assert (("libev: io watcher list contains a loop", w != w2));
1663 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2578 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1664 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2579 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1665 } 2580 }
1666 2581
1667 assert (timermax >= timercnt); 2582 assert (timermax >= timercnt);
… …
1685#if EV_FORK_ENABLE 2600#if EV_FORK_ENABLE
1686 assert (forkmax >= forkcnt); 2601 assert (forkmax >= forkcnt);
1687 array_verify (EV_A_ (W *)forks, forkcnt); 2602 array_verify (EV_A_ (W *)forks, forkcnt);
1688#endif 2603#endif
1689 2604
2605#if EV_CLEANUP_ENABLE
2606 assert (cleanupmax >= cleanupcnt);
2607 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2608#endif
2609
1690#if EV_ASYNC_ENABLE 2610#if EV_ASYNC_ENABLE
1691 assert (asyncmax >= asynccnt); 2611 assert (asyncmax >= asynccnt);
1692 array_verify (EV_A_ (W *)asyncs, asynccnt); 2612 array_verify (EV_A_ (W *)asyncs, asynccnt);
1693#endif 2613#endif
1694 2614
2615#if EV_PREPARE_ENABLE
1695 assert (preparemax >= preparecnt); 2616 assert (preparemax >= preparecnt);
1696 array_verify (EV_A_ (W *)prepares, preparecnt); 2617 array_verify (EV_A_ (W *)prepares, preparecnt);
2618#endif
1697 2619
2620#if EV_CHECK_ENABLE
1698 assert (checkmax >= checkcnt); 2621 assert (checkmax >= checkcnt);
1699 array_verify (EV_A_ (W *)checks, checkcnt); 2622 array_verify (EV_A_ (W *)checks, checkcnt);
2623#endif
1700 2624
1701# if 0 2625# if 0
2626#if EV_CHILD_ENABLE
1702 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2627 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1703 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2628 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2629#endif
1704# endif 2630# endif
1705#endif 2631#endif
1706} 2632}
1707 2633#endif
1708#endif /* multiplicity */
1709 2634
1710#if EV_MULTIPLICITY 2635#if EV_MULTIPLICITY
1711struct ev_loop * 2636struct ev_loop * ecb_cold
1712ev_default_loop_init (unsigned int flags)
1713#else 2637#else
1714int 2638int
2639#endif
1715ev_default_loop (unsigned int flags) 2640ev_default_loop (unsigned int flags) EV_THROW
1716#endif
1717{ 2641{
1718 if (!ev_default_loop_ptr) 2642 if (!ev_default_loop_ptr)
1719 { 2643 {
1720#if EV_MULTIPLICITY 2644#if EV_MULTIPLICITY
1721 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2645 EV_P = ev_default_loop_ptr = &default_loop_struct;
1722#else 2646#else
1723 ev_default_loop_ptr = 1; 2647 ev_default_loop_ptr = 1;
1724#endif 2648#endif
1725 2649
1726 loop_init (EV_A_ flags); 2650 loop_init (EV_A_ flags);
1727 2651
1728 if (ev_backend (EV_A)) 2652 if (ev_backend (EV_A))
1729 { 2653 {
1730#ifndef _WIN32 2654#if EV_CHILD_ENABLE
1731 ev_signal_init (&childev, childcb, SIGCHLD); 2655 ev_signal_init (&childev, childcb, SIGCHLD);
1732 ev_set_priority (&childev, EV_MAXPRI); 2656 ev_set_priority (&childev, EV_MAXPRI);
1733 ev_signal_start (EV_A_ &childev); 2657 ev_signal_start (EV_A_ &childev);
1734 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2658 ev_unref (EV_A); /* child watcher should not keep loop alive */
1735#endif 2659#endif
… …
1740 2664
1741 return ev_default_loop_ptr; 2665 return ev_default_loop_ptr;
1742} 2666}
1743 2667
1744void 2668void
1745ev_default_destroy (void) 2669ev_loop_fork (EV_P) EV_THROW
1746{ 2670{
1747#if EV_MULTIPLICITY
1748 struct ev_loop *loop = ev_default_loop_ptr;
1749#endif
1750
1751 ev_default_loop_ptr = 0;
1752
1753#ifndef _WIN32
1754 ev_ref (EV_A); /* child watcher */
1755 ev_signal_stop (EV_A_ &childev);
1756#endif
1757
1758 loop_destroy (EV_A);
1759}
1760
1761void
1762ev_default_fork (void)
1763{
1764#if EV_MULTIPLICITY
1765 struct ev_loop *loop = ev_default_loop_ptr;
1766#endif
1767
1768 postfork = 1; /* must be in line with ev_loop_fork */ 2671 postfork = 1; /* must be in line with ev_default_fork */
1769} 2672}
1770 2673
1771/*****************************************************************************/ 2674/*****************************************************************************/
1772 2675
1773void 2676void
1774ev_invoke (EV_P_ void *w, int revents) 2677ev_invoke (EV_P_ void *w, int revents)
1775{ 2678{
1776 EV_CB_INVOKE ((W)w, revents); 2679 EV_CB_INVOKE ((W)w, revents);
1777} 2680}
1778 2681
1779inline_speed void 2682unsigned int
1780call_pending (EV_P) 2683ev_pending_count (EV_P) EV_THROW
1781{ 2684{
1782 int pri; 2685 int pri;
2686 unsigned int count = 0;
1783 2687
1784 for (pri = NUMPRI; pri--; ) 2688 for (pri = NUMPRI; pri--; )
2689 count += pendingcnt [pri];
2690
2691 return count;
2692}
2693
2694void noinline
2695ev_invoke_pending (EV_P)
2696{
2697 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1785 while (pendingcnt [pri]) 2698 while (pendingcnt [pendingpri])
1786 { 2699 {
1787 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2700 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1788
1789 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1790 /* ^ this is no longer true, as pending_w could be here */
1791 2701
1792 p->w->pending = 0; 2702 p->w->pending = 0;
1793 EV_CB_INVOKE (p->w, p->events); 2703 EV_CB_INVOKE (p->w, p->events);
1794 EV_FREQUENT_CHECK; 2704 EV_FREQUENT_CHECK;
1795 } 2705 }
… …
1852 EV_FREQUENT_CHECK; 2762 EV_FREQUENT_CHECK;
1853 feed_reverse (EV_A_ (W)w); 2763 feed_reverse (EV_A_ (W)w);
1854 } 2764 }
1855 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2765 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1856 2766
1857 feed_reverse_done (EV_A_ EV_TIMEOUT); 2767 feed_reverse_done (EV_A_ EV_TIMER);
1858 } 2768 }
1859} 2769}
1860 2770
1861#if EV_PERIODIC_ENABLE 2771#if EV_PERIODIC_ENABLE
2772
2773static void noinline
2774periodic_recalc (EV_P_ ev_periodic *w)
2775{
2776 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2777 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2778
2779 /* the above almost always errs on the low side */
2780 while (at <= ev_rt_now)
2781 {
2782 ev_tstamp nat = at + w->interval;
2783
2784 /* when resolution fails us, we use ev_rt_now */
2785 if (expect_false (nat == at))
2786 {
2787 at = ev_rt_now;
2788 break;
2789 }
2790
2791 at = nat;
2792 }
2793
2794 ev_at (w) = at;
2795}
2796
1862/* make periodics pending */ 2797/* make periodics pending */
1863inline_size void 2798inline_size void
1864periodics_reify (EV_P) 2799periodics_reify (EV_P)
1865{ 2800{
1866 EV_FREQUENT_CHECK; 2801 EV_FREQUENT_CHECK;
… …
1885 ANHE_at_cache (periodics [HEAP0]); 2820 ANHE_at_cache (periodics [HEAP0]);
1886 downheap (periodics, periodiccnt, HEAP0); 2821 downheap (periodics, periodiccnt, HEAP0);
1887 } 2822 }
1888 else if (w->interval) 2823 else if (w->interval)
1889 { 2824 {
1890 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2825 periodic_recalc (EV_A_ w);
1891 /* if next trigger time is not sufficiently in the future, put it there */
1892 /* this might happen because of floating point inexactness */
1893 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1894 {
1895 ev_at (w) += w->interval;
1896
1897 /* if interval is unreasonably low we might still have a time in the past */
1898 /* so correct this. this will make the periodic very inexact, but the user */
1899 /* has effectively asked to get triggered more often than possible */
1900 if (ev_at (w) < ev_rt_now)
1901 ev_at (w) = ev_rt_now;
1902 }
1903
1904 ANHE_at_cache (periodics [HEAP0]); 2826 ANHE_at_cache (periodics [HEAP0]);
1905 downheap (periodics, periodiccnt, HEAP0); 2827 downheap (periodics, periodiccnt, HEAP0);
1906 } 2828 }
1907 else 2829 else
1908 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2830 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1915 feed_reverse_done (EV_A_ EV_PERIODIC); 2837 feed_reverse_done (EV_A_ EV_PERIODIC);
1916 } 2838 }
1917} 2839}
1918 2840
1919/* simply recalculate all periodics */ 2841/* simply recalculate all periodics */
1920/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2842/* TODO: maybe ensure that at least one event happens when jumping forward? */
1921static void noinline 2843static void noinline ecb_cold
1922periodics_reschedule (EV_P) 2844periodics_reschedule (EV_P)
1923{ 2845{
1924 int i; 2846 int i;
1925 2847
1926 /* adjust periodics after time jump */ 2848 /* adjust periodics after time jump */
… …
1929 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2851 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1930 2852
1931 if (w->reschedule_cb) 2853 if (w->reschedule_cb)
1932 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2854 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1933 else if (w->interval) 2855 else if (w->interval)
1934 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2856 periodic_recalc (EV_A_ w);
1935 2857
1936 ANHE_at_cache (periodics [i]); 2858 ANHE_at_cache (periodics [i]);
1937 } 2859 }
1938 2860
1939 reheap (periodics, periodiccnt); 2861 reheap (periodics, periodiccnt);
1940} 2862}
1941#endif 2863#endif
1942 2864
1943/* adjust all timers by a given offset */ 2865/* adjust all timers by a given offset */
1944static void noinline 2866static void noinline ecb_cold
1945timers_reschedule (EV_P_ ev_tstamp adjust) 2867timers_reschedule (EV_P_ ev_tstamp adjust)
1946{ 2868{
1947 int i; 2869 int i;
1948 2870
1949 for (i = 0; i < timercnt; ++i) 2871 for (i = 0; i < timercnt; ++i)
… …
1953 ANHE_at_cache (*he); 2875 ANHE_at_cache (*he);
1954 } 2876 }
1955} 2877}
1956 2878
1957/* fetch new monotonic and realtime times from the kernel */ 2879/* fetch new monotonic and realtime times from the kernel */
1958/* also detetc if there was a timejump, and act accordingly */ 2880/* also detect if there was a timejump, and act accordingly */
1959inline_speed void 2881inline_speed void
1960time_update (EV_P_ ev_tstamp max_block) 2882time_update (EV_P_ ev_tstamp max_block)
1961{ 2883{
1962#if EV_USE_MONOTONIC 2884#if EV_USE_MONOTONIC
1963 if (expect_true (have_monotonic)) 2885 if (expect_true (have_monotonic))
… …
1986 * doesn't hurt either as we only do this on time-jumps or 2908 * doesn't hurt either as we only do this on time-jumps or
1987 * in the unlikely event of having been preempted here. 2909 * in the unlikely event of having been preempted here.
1988 */ 2910 */
1989 for (i = 4; --i; ) 2911 for (i = 4; --i; )
1990 { 2912 {
2913 ev_tstamp diff;
1991 rtmn_diff = ev_rt_now - mn_now; 2914 rtmn_diff = ev_rt_now - mn_now;
1992 2915
2916 diff = odiff - rtmn_diff;
2917
1993 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2918 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
1994 return; /* all is well */ 2919 return; /* all is well */
1995 2920
1996 ev_rt_now = ev_time (); 2921 ev_rt_now = ev_time ();
1997 mn_now = get_clock (); 2922 mn_now = get_clock ();
1998 now_floor = mn_now; 2923 now_floor = mn_now;
… …
2020 2945
2021 mn_now = ev_rt_now; 2946 mn_now = ev_rt_now;
2022 } 2947 }
2023} 2948}
2024 2949
2025static int loop_done; 2950int
2026
2027void
2028ev_loop (EV_P_ int flags) 2951ev_run (EV_P_ int flags)
2029{ 2952{
2953#if EV_FEATURE_API
2954 ++loop_depth;
2955#endif
2956
2957 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2958
2030 loop_done = EVUNLOOP_CANCEL; 2959 loop_done = EVBREAK_CANCEL;
2031 2960
2032 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2961 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2033 2962
2034 do 2963 do
2035 { 2964 {
2036#if EV_VERIFY >= 2 2965#if EV_VERIFY >= 2
2037 ev_loop_verify (EV_A); 2966 ev_verify (EV_A);
2038#endif 2967#endif
2039 2968
2040#ifndef _WIN32 2969#ifndef _WIN32
2041 if (expect_false (curpid)) /* penalise the forking check even more */ 2970 if (expect_false (curpid)) /* penalise the forking check even more */
2042 if (expect_false (getpid () != curpid)) 2971 if (expect_false (getpid () != curpid))
… …
2050 /* we might have forked, so queue fork handlers */ 2979 /* we might have forked, so queue fork handlers */
2051 if (expect_false (postfork)) 2980 if (expect_false (postfork))
2052 if (forkcnt) 2981 if (forkcnt)
2053 { 2982 {
2054 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2983 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2055 call_pending (EV_A); 2984 EV_INVOKE_PENDING;
2056 } 2985 }
2057#endif 2986#endif
2058 2987
2988#if EV_PREPARE_ENABLE
2059 /* queue prepare watchers (and execute them) */ 2989 /* queue prepare watchers (and execute them) */
2060 if (expect_false (preparecnt)) 2990 if (expect_false (preparecnt))
2061 { 2991 {
2062 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2992 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2063 call_pending (EV_A); 2993 EV_INVOKE_PENDING;
2064 } 2994 }
2995#endif
2996
2997 if (expect_false (loop_done))
2998 break;
2065 2999
2066 /* we might have forked, so reify kernel state if necessary */ 3000 /* we might have forked, so reify kernel state if necessary */
2067 if (expect_false (postfork)) 3001 if (expect_false (postfork))
2068 loop_fork (EV_A); 3002 loop_fork (EV_A);
2069 3003
… …
2073 /* calculate blocking time */ 3007 /* calculate blocking time */
2074 { 3008 {
2075 ev_tstamp waittime = 0.; 3009 ev_tstamp waittime = 0.;
2076 ev_tstamp sleeptime = 0.; 3010 ev_tstamp sleeptime = 0.;
2077 3011
3012 /* remember old timestamp for io_blocktime calculation */
3013 ev_tstamp prev_mn_now = mn_now;
3014
3015 /* update time to cancel out callback processing overhead */
3016 time_update (EV_A_ 1e100);
3017
3018 /* from now on, we want a pipe-wake-up */
3019 pipe_write_wanted = 1;
3020
3021 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3022
2078 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3023 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2079 { 3024 {
2080 /* remember old timestamp for io_blocktime calculation */
2081 ev_tstamp prev_mn_now = mn_now;
2082
2083 /* update time to cancel out callback processing overhead */
2084 time_update (EV_A_ 1e100);
2085
2086 waittime = MAX_BLOCKTIME; 3025 waittime = MAX_BLOCKTIME;
2087 3026
2088 if (timercnt) 3027 if (timercnt)
2089 { 3028 {
2090 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3029 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2091 if (waittime > to) waittime = to; 3030 if (waittime > to) waittime = to;
2092 } 3031 }
2093 3032
2094#if EV_PERIODIC_ENABLE 3033#if EV_PERIODIC_ENABLE
2095 if (periodiccnt) 3034 if (periodiccnt)
2096 { 3035 {
2097 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3036 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2098 if (waittime > to) waittime = to; 3037 if (waittime > to) waittime = to;
2099 } 3038 }
2100#endif 3039#endif
2101 3040
2102 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3041 /* don't let timeouts decrease the waittime below timeout_blocktime */
2103 if (expect_false (waittime < timeout_blocktime)) 3042 if (expect_false (waittime < timeout_blocktime))
2104 waittime = timeout_blocktime; 3043 waittime = timeout_blocktime;
3044
3045 /* at this point, we NEED to wait, so we have to ensure */
3046 /* to pass a minimum nonzero value to the backend */
3047 if (expect_false (waittime < backend_mintime))
3048 waittime = backend_mintime;
2105 3049
2106 /* extra check because io_blocktime is commonly 0 */ 3050 /* extra check because io_blocktime is commonly 0 */
2107 if (expect_false (io_blocktime)) 3051 if (expect_false (io_blocktime))
2108 { 3052 {
2109 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3053 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2110 3054
2111 if (sleeptime > waittime - backend_fudge) 3055 if (sleeptime > waittime - backend_mintime)
2112 sleeptime = waittime - backend_fudge; 3056 sleeptime = waittime - backend_mintime;
2113 3057
2114 if (expect_true (sleeptime > 0.)) 3058 if (expect_true (sleeptime > 0.))
2115 { 3059 {
2116 ev_sleep (sleeptime); 3060 ev_sleep (sleeptime);
2117 waittime -= sleeptime; 3061 waittime -= sleeptime;
2118 } 3062 }
2119 } 3063 }
2120 } 3064 }
2121 3065
3066#if EV_FEATURE_API
2122 ++loop_count; 3067 ++loop_count;
3068#endif
3069 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2123 backend_poll (EV_A_ waittime); 3070 backend_poll (EV_A_ waittime);
3071 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3072
3073 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3074
3075 if (pipe_write_skipped)
3076 {
3077 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3078 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3079 }
3080
2124 3081
2125 /* update ev_rt_now, do magic */ 3082 /* update ev_rt_now, do magic */
2126 time_update (EV_A_ waittime + sleeptime); 3083 time_update (EV_A_ waittime + sleeptime);
2127 } 3084 }
2128 3085
… …
2135#if EV_IDLE_ENABLE 3092#if EV_IDLE_ENABLE
2136 /* queue idle watchers unless other events are pending */ 3093 /* queue idle watchers unless other events are pending */
2137 idle_reify (EV_A); 3094 idle_reify (EV_A);
2138#endif 3095#endif
2139 3096
3097#if EV_CHECK_ENABLE
2140 /* queue check watchers, to be executed first */ 3098 /* queue check watchers, to be executed first */
2141 if (expect_false (checkcnt)) 3099 if (expect_false (checkcnt))
2142 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3100 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3101#endif
2143 3102
2144 call_pending (EV_A); 3103 EV_INVOKE_PENDING;
2145 } 3104 }
2146 while (expect_true ( 3105 while (expect_true (
2147 activecnt 3106 activecnt
2148 && !loop_done 3107 && !loop_done
2149 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3108 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2150 )); 3109 ));
2151 3110
2152 if (loop_done == EVUNLOOP_ONE) 3111 if (loop_done == EVBREAK_ONE)
2153 loop_done = EVUNLOOP_CANCEL; 3112 loop_done = EVBREAK_CANCEL;
3113
3114#if EV_FEATURE_API
3115 --loop_depth;
3116#endif
3117
3118 return activecnt;
2154} 3119}
2155 3120
2156void 3121void
2157ev_unloop (EV_P_ int how) 3122ev_break (EV_P_ int how) EV_THROW
2158{ 3123{
2159 loop_done = how; 3124 loop_done = how;
2160} 3125}
2161 3126
2162void 3127void
2163ev_ref (EV_P) 3128ev_ref (EV_P) EV_THROW
2164{ 3129{
2165 ++activecnt; 3130 ++activecnt;
2166} 3131}
2167 3132
2168void 3133void
2169ev_unref (EV_P) 3134ev_unref (EV_P) EV_THROW
2170{ 3135{
2171 --activecnt; 3136 --activecnt;
2172} 3137}
2173 3138
2174void 3139void
2175ev_now_update (EV_P) 3140ev_now_update (EV_P) EV_THROW
2176{ 3141{
2177 time_update (EV_A_ 1e100); 3142 time_update (EV_A_ 1e100);
2178} 3143}
2179 3144
2180void 3145void
2181ev_suspend (EV_P) 3146ev_suspend (EV_P) EV_THROW
2182{ 3147{
2183 ev_now_update (EV_A); 3148 ev_now_update (EV_A);
2184} 3149}
2185 3150
2186void 3151void
2187ev_resume (EV_P) 3152ev_resume (EV_P) EV_THROW
2188{ 3153{
2189 ev_tstamp mn_prev = mn_now; 3154 ev_tstamp mn_prev = mn_now;
2190 3155
2191 ev_now_update (EV_A); 3156 ev_now_update (EV_A);
2192 timers_reschedule (EV_A_ mn_now - mn_prev); 3157 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2209inline_size void 3174inline_size void
2210wlist_del (WL *head, WL elem) 3175wlist_del (WL *head, WL elem)
2211{ 3176{
2212 while (*head) 3177 while (*head)
2213 { 3178 {
2214 if (*head == elem) 3179 if (expect_true (*head == elem))
2215 { 3180 {
2216 *head = elem->next; 3181 *head = elem->next;
2217 return; 3182 break;
2218 } 3183 }
2219 3184
2220 head = &(*head)->next; 3185 head = &(*head)->next;
2221 } 3186 }
2222} 3187}
… …
2231 w->pending = 0; 3196 w->pending = 0;
2232 } 3197 }
2233} 3198}
2234 3199
2235int 3200int
2236ev_clear_pending (EV_P_ void *w) 3201ev_clear_pending (EV_P_ void *w) EV_THROW
2237{ 3202{
2238 W w_ = (W)w; 3203 W w_ = (W)w;
2239 int pending = w_->pending; 3204 int pending = w_->pending;
2240 3205
2241 if (expect_true (pending)) 3206 if (expect_true (pending))
… …
2250} 3215}
2251 3216
2252inline_size void 3217inline_size void
2253pri_adjust (EV_P_ W w) 3218pri_adjust (EV_P_ W w)
2254{ 3219{
2255 int pri = w->priority; 3220 int pri = ev_priority (w);
2256 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 3221 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2257 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 3222 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2258 w->priority = pri; 3223 ev_set_priority (w, pri);
2259} 3224}
2260 3225
2261inline_speed void 3226inline_speed void
2262ev_start (EV_P_ W w, int active) 3227ev_start (EV_P_ W w, int active)
2263{ 3228{
… …
2274} 3239}
2275 3240
2276/*****************************************************************************/ 3241/*****************************************************************************/
2277 3242
2278void noinline 3243void noinline
2279ev_io_start (EV_P_ ev_io *w) 3244ev_io_start (EV_P_ ev_io *w) EV_THROW
2280{ 3245{
2281 int fd = w->fd; 3246 int fd = w->fd;
2282 3247
2283 if (expect_false (ev_is_active (w))) 3248 if (expect_false (ev_is_active (w)))
2284 return; 3249 return;
2285 3250
2286 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3251 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2287 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3252 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2288 3253
2289 EV_FREQUENT_CHECK; 3254 EV_FREQUENT_CHECK;
2290 3255
2291 ev_start (EV_A_ (W)w, 1); 3256 ev_start (EV_A_ (W)w, 1);
2292 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3257 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2293 wlist_add (&anfds[fd].head, (WL)w); 3258 wlist_add (&anfds[fd].head, (WL)w);
2294 3259
3260 /* common bug, apparently */
3261 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3262
2295 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 3263 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2296 w->events &= ~EV__IOFDSET; 3264 w->events &= ~EV__IOFDSET;
2297 3265
2298 EV_FREQUENT_CHECK; 3266 EV_FREQUENT_CHECK;
2299} 3267}
2300 3268
2301void noinline 3269void noinline
2302ev_io_stop (EV_P_ ev_io *w) 3270ev_io_stop (EV_P_ ev_io *w) EV_THROW
2303{ 3271{
2304 clear_pending (EV_A_ (W)w); 3272 clear_pending (EV_A_ (W)w);
2305 if (expect_false (!ev_is_active (w))) 3273 if (expect_false (!ev_is_active (w)))
2306 return; 3274 return;
2307 3275
… …
2310 EV_FREQUENT_CHECK; 3278 EV_FREQUENT_CHECK;
2311 3279
2312 wlist_del (&anfds[w->fd].head, (WL)w); 3280 wlist_del (&anfds[w->fd].head, (WL)w);
2313 ev_stop (EV_A_ (W)w); 3281 ev_stop (EV_A_ (W)w);
2314 3282
2315 fd_change (EV_A_ w->fd, 1); 3283 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2316 3284
2317 EV_FREQUENT_CHECK; 3285 EV_FREQUENT_CHECK;
2318} 3286}
2319 3287
2320void noinline 3288void noinline
2321ev_timer_start (EV_P_ ev_timer *w) 3289ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2322{ 3290{
2323 if (expect_false (ev_is_active (w))) 3291 if (expect_false (ev_is_active (w)))
2324 return; 3292 return;
2325 3293
2326 ev_at (w) += mn_now; 3294 ev_at (w) += mn_now;
… …
2340 3308
2341 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3309 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2342} 3310}
2343 3311
2344void noinline 3312void noinline
2345ev_timer_stop (EV_P_ ev_timer *w) 3313ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2346{ 3314{
2347 clear_pending (EV_A_ (W)w); 3315 clear_pending (EV_A_ (W)w);
2348 if (expect_false (!ev_is_active (w))) 3316 if (expect_false (!ev_is_active (w)))
2349 return; 3317 return;
2350 3318
… …
2362 timers [active] = timers [timercnt + HEAP0]; 3330 timers [active] = timers [timercnt + HEAP0];
2363 adjustheap (timers, timercnt, active); 3331 adjustheap (timers, timercnt, active);
2364 } 3332 }
2365 } 3333 }
2366 3334
2367 EV_FREQUENT_CHECK;
2368
2369 ev_at (w) -= mn_now; 3335 ev_at (w) -= mn_now;
2370 3336
2371 ev_stop (EV_A_ (W)w); 3337 ev_stop (EV_A_ (W)w);
3338
3339 EV_FREQUENT_CHECK;
2372} 3340}
2373 3341
2374void noinline 3342void noinline
2375ev_timer_again (EV_P_ ev_timer *w) 3343ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2376{ 3344{
2377 EV_FREQUENT_CHECK; 3345 EV_FREQUENT_CHECK;
3346
3347 clear_pending (EV_A_ (W)w);
2378 3348
2379 if (ev_is_active (w)) 3349 if (ev_is_active (w))
2380 { 3350 {
2381 if (w->repeat) 3351 if (w->repeat)
2382 { 3352 {
… …
2394 } 3364 }
2395 3365
2396 EV_FREQUENT_CHECK; 3366 EV_FREQUENT_CHECK;
2397} 3367}
2398 3368
3369ev_tstamp
3370ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3371{
3372 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3373}
3374
2399#if EV_PERIODIC_ENABLE 3375#if EV_PERIODIC_ENABLE
2400void noinline 3376void noinline
2401ev_periodic_start (EV_P_ ev_periodic *w) 3377ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2402{ 3378{
2403 if (expect_false (ev_is_active (w))) 3379 if (expect_false (ev_is_active (w)))
2404 return; 3380 return;
2405 3381
2406 if (w->reschedule_cb) 3382 if (w->reschedule_cb)
2407 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3383 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2408 else if (w->interval) 3384 else if (w->interval)
2409 { 3385 {
2410 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3386 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2411 /* this formula differs from the one in periodic_reify because we do not always round up */ 3387 periodic_recalc (EV_A_ w);
2412 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2413 } 3388 }
2414 else 3389 else
2415 ev_at (w) = w->offset; 3390 ev_at (w) = w->offset;
2416 3391
2417 EV_FREQUENT_CHECK; 3392 EV_FREQUENT_CHECK;
… …
2427 3402
2428 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3403 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2429} 3404}
2430 3405
2431void noinline 3406void noinline
2432ev_periodic_stop (EV_P_ ev_periodic *w) 3407ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2433{ 3408{
2434 clear_pending (EV_A_ (W)w); 3409 clear_pending (EV_A_ (W)w);
2435 if (expect_false (!ev_is_active (w))) 3410 if (expect_false (!ev_is_active (w)))
2436 return; 3411 return;
2437 3412
… …
2449 periodics [active] = periodics [periodiccnt + HEAP0]; 3424 periodics [active] = periodics [periodiccnt + HEAP0];
2450 adjustheap (periodics, periodiccnt, active); 3425 adjustheap (periodics, periodiccnt, active);
2451 } 3426 }
2452 } 3427 }
2453 3428
2454 EV_FREQUENT_CHECK;
2455
2456 ev_stop (EV_A_ (W)w); 3429 ev_stop (EV_A_ (W)w);
3430
3431 EV_FREQUENT_CHECK;
2457} 3432}
2458 3433
2459void noinline 3434void noinline
2460ev_periodic_again (EV_P_ ev_periodic *w) 3435ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2461{ 3436{
2462 /* TODO: use adjustheap and recalculation */ 3437 /* TODO: use adjustheap and recalculation */
2463 ev_periodic_stop (EV_A_ w); 3438 ev_periodic_stop (EV_A_ w);
2464 ev_periodic_start (EV_A_ w); 3439 ev_periodic_start (EV_A_ w);
2465} 3440}
… …
2467 3442
2468#ifndef SA_RESTART 3443#ifndef SA_RESTART
2469# define SA_RESTART 0 3444# define SA_RESTART 0
2470#endif 3445#endif
2471 3446
3447#if EV_SIGNAL_ENABLE
3448
2472void noinline 3449void noinline
2473ev_signal_start (EV_P_ ev_signal *w) 3450ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2474{ 3451{
2475#if EV_MULTIPLICITY
2476 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2477#endif
2478 if (expect_false (ev_is_active (w))) 3452 if (expect_false (ev_is_active (w)))
2479 return; 3453 return;
2480 3454
2481 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3455 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2482 3456
2483 evpipe_init (EV_A); 3457#if EV_MULTIPLICITY
3458 assert (("libev: a signal must not be attached to two different loops",
3459 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2484 3460
2485 EV_FREQUENT_CHECK; 3461 signals [w->signum - 1].loop = EV_A;
3462#endif
2486 3463
3464 EV_FREQUENT_CHECK;
3465
3466#if EV_USE_SIGNALFD
3467 if (sigfd == -2)
2487 { 3468 {
2488#ifndef _WIN32 3469 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2489 sigset_t full, prev; 3470 if (sigfd < 0 && errno == EINVAL)
2490 sigfillset (&full); 3471 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2491 sigprocmask (SIG_SETMASK, &full, &prev);
2492#endif
2493 3472
2494 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3473 if (sigfd >= 0)
3474 {
3475 fd_intern (sigfd); /* doing it twice will not hurt */
2495 3476
2496#ifndef _WIN32 3477 sigemptyset (&sigfd_set);
2497 sigprocmask (SIG_SETMASK, &prev, 0); 3478
2498#endif 3479 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3480 ev_set_priority (&sigfd_w, EV_MAXPRI);
3481 ev_io_start (EV_A_ &sigfd_w);
3482 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3483 }
2499 } 3484 }
3485
3486 if (sigfd >= 0)
3487 {
3488 /* TODO: check .head */
3489 sigaddset (&sigfd_set, w->signum);
3490 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3491
3492 signalfd (sigfd, &sigfd_set, 0);
3493 }
3494#endif
2500 3495
2501 ev_start (EV_A_ (W)w, 1); 3496 ev_start (EV_A_ (W)w, 1);
2502 wlist_add (&signals [w->signum - 1].head, (WL)w); 3497 wlist_add (&signals [w->signum - 1].head, (WL)w);
2503 3498
2504 if (!((WL)w)->next) 3499 if (!((WL)w)->next)
3500# if EV_USE_SIGNALFD
3501 if (sigfd < 0) /*TODO*/
3502# endif
2505 { 3503 {
2506#if _WIN32 3504# ifdef _WIN32
3505 evpipe_init (EV_A);
3506
2507 signal (w->signum, ev_sighandler); 3507 signal (w->signum, ev_sighandler);
2508#else 3508# else
2509 struct sigaction sa; 3509 struct sigaction sa;
3510
3511 evpipe_init (EV_A);
3512
2510 sa.sa_handler = ev_sighandler; 3513 sa.sa_handler = ev_sighandler;
2511 sigfillset (&sa.sa_mask); 3514 sigfillset (&sa.sa_mask);
2512 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3515 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2513 sigaction (w->signum, &sa, 0); 3516 sigaction (w->signum, &sa, 0);
3517
3518 if (origflags & EVFLAG_NOSIGMASK)
3519 {
3520 sigemptyset (&sa.sa_mask);
3521 sigaddset (&sa.sa_mask, w->signum);
3522 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3523 }
2514#endif 3524#endif
2515 } 3525 }
2516 3526
2517 EV_FREQUENT_CHECK; 3527 EV_FREQUENT_CHECK;
2518} 3528}
2519 3529
2520void noinline 3530void noinline
2521ev_signal_stop (EV_P_ ev_signal *w) 3531ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2522{ 3532{
2523 clear_pending (EV_A_ (W)w); 3533 clear_pending (EV_A_ (W)w);
2524 if (expect_false (!ev_is_active (w))) 3534 if (expect_false (!ev_is_active (w)))
2525 return; 3535 return;
2526 3536
… …
2528 3538
2529 wlist_del (&signals [w->signum - 1].head, (WL)w); 3539 wlist_del (&signals [w->signum - 1].head, (WL)w);
2530 ev_stop (EV_A_ (W)w); 3540 ev_stop (EV_A_ (W)w);
2531 3541
2532 if (!signals [w->signum - 1].head) 3542 if (!signals [w->signum - 1].head)
3543 {
3544#if EV_MULTIPLICITY
3545 signals [w->signum - 1].loop = 0; /* unattach from signal */
3546#endif
3547#if EV_USE_SIGNALFD
3548 if (sigfd >= 0)
3549 {
3550 sigset_t ss;
3551
3552 sigemptyset (&ss);
3553 sigaddset (&ss, w->signum);
3554 sigdelset (&sigfd_set, w->signum);
3555
3556 signalfd (sigfd, &sigfd_set, 0);
3557 sigprocmask (SIG_UNBLOCK, &ss, 0);
3558 }
3559 else
3560#endif
2533 signal (w->signum, SIG_DFL); 3561 signal (w->signum, SIG_DFL);
3562 }
2534 3563
2535 EV_FREQUENT_CHECK; 3564 EV_FREQUENT_CHECK;
2536} 3565}
3566
3567#endif
3568
3569#if EV_CHILD_ENABLE
2537 3570
2538void 3571void
2539ev_child_start (EV_P_ ev_child *w) 3572ev_child_start (EV_P_ ev_child *w) EV_THROW
2540{ 3573{
2541#if EV_MULTIPLICITY 3574#if EV_MULTIPLICITY
2542 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3575 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2543#endif 3576#endif
2544 if (expect_false (ev_is_active (w))) 3577 if (expect_false (ev_is_active (w)))
2545 return; 3578 return;
2546 3579
2547 EV_FREQUENT_CHECK; 3580 EV_FREQUENT_CHECK;
2548 3581
2549 ev_start (EV_A_ (W)w, 1); 3582 ev_start (EV_A_ (W)w, 1);
2550 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3583 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2551 3584
2552 EV_FREQUENT_CHECK; 3585 EV_FREQUENT_CHECK;
2553} 3586}
2554 3587
2555void 3588void
2556ev_child_stop (EV_P_ ev_child *w) 3589ev_child_stop (EV_P_ ev_child *w) EV_THROW
2557{ 3590{
2558 clear_pending (EV_A_ (W)w); 3591 clear_pending (EV_A_ (W)w);
2559 if (expect_false (!ev_is_active (w))) 3592 if (expect_false (!ev_is_active (w)))
2560 return; 3593 return;
2561 3594
2562 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
2563 3596
2564 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3597 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2565 ev_stop (EV_A_ (W)w); 3598 ev_stop (EV_A_ (W)w);
2566 3599
2567 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
2568} 3601}
3602
3603#endif
2569 3604
2570#if EV_STAT_ENABLE 3605#if EV_STAT_ENABLE
2571 3606
2572# ifdef _WIN32 3607# ifdef _WIN32
2573# undef lstat 3608# undef lstat
… …
2579#define MIN_STAT_INTERVAL 0.1074891 3614#define MIN_STAT_INTERVAL 0.1074891
2580 3615
2581static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3616static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2582 3617
2583#if EV_USE_INOTIFY 3618#if EV_USE_INOTIFY
2584# define EV_INOTIFY_BUFSIZE 8192 3619
3620/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3621# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2585 3622
2586static void noinline 3623static void noinline
2587infy_add (EV_P_ ev_stat *w) 3624infy_add (EV_P_ ev_stat *w)
2588{ 3625{
2589 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3626 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);
2590 3627
2591 if (w->wd < 0) 3628 if (w->wd >= 0)
3629 {
3630 struct statfs sfs;
3631
3632 /* now local changes will be tracked by inotify, but remote changes won't */
3633 /* unless the filesystem is known to be local, we therefore still poll */
3634 /* also do poll on <2.6.25, but with normal frequency */
3635
3636 if (!fs_2625)
3637 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3638 else if (!statfs (w->path, &sfs)
3639 && (sfs.f_type == 0x1373 /* devfs */
3640 || sfs.f_type == 0xEF53 /* ext2/3 */
3641 || sfs.f_type == 0x3153464a /* jfs */
3642 || sfs.f_type == 0x52654973 /* reiser3 */
3643 || sfs.f_type == 0x01021994 /* tempfs */
3644 || sfs.f_type == 0x58465342 /* xfs */))
3645 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3646 else
3647 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2592 { 3648 }
3649 else
3650 {
3651 /* can't use inotify, continue to stat */
2593 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3652 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2594 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2595 3653
2596 /* monitor some parent directory for speedup hints */ 3654 /* if path is not there, monitor some parent directory for speedup hints */
2597 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3655 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2598 /* but an efficiency issue only */ 3656 /* but an efficiency issue only */
2599 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3657 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2600 { 3658 {
2601 char path [4096]; 3659 char path [4096];
… …
2611 if (!pend || pend == path) 3669 if (!pend || pend == path)
2612 break; 3670 break;
2613 3671
2614 *pend = 0; 3672 *pend = 0;
2615 w->wd = inotify_add_watch (fs_fd, path, mask); 3673 w->wd = inotify_add_watch (fs_fd, path, mask);
2616 } 3674 }
2617 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3675 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2618 } 3676 }
2619 } 3677 }
2620 3678
2621 if (w->wd >= 0) 3679 if (w->wd >= 0)
2622 {
2623 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3680 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2624 3681
2625 /* now local changes will be tracked by inotify, but remote changes won't */ 3682 /* now re-arm timer, if required */
2626 /* unless the filesystem it known to be local, we therefore still poll */ 3683 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2627 /* also do poll on <2.6.25, but with normal frequency */
2628 struct statfs sfs;
2629
2630 if (fs_2625 && !statfs (w->path, &sfs))
2631 if (sfs.f_type == 0x1373 /* devfs */
2632 || sfs.f_type == 0xEF53 /* ext2/3 */
2633 || sfs.f_type == 0x3153464a /* jfs */
2634 || sfs.f_type == 0x52654973 /* reiser3 */
2635 || sfs.f_type == 0x01021994 /* tempfs */
2636 || sfs.f_type == 0x58465342 /* xfs */)
2637 return;
2638
2639 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2640 ev_timer_again (EV_A_ &w->timer); 3684 ev_timer_again (EV_A_ &w->timer);
2641 } 3685 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2642} 3686}
2643 3687
2644static void noinline 3688static void noinline
2645infy_del (EV_P_ ev_stat *w) 3689infy_del (EV_P_ ev_stat *w)
2646{ 3690{
… …
2649 3693
2650 if (wd < 0) 3694 if (wd < 0)
2651 return; 3695 return;
2652 3696
2653 w->wd = -2; 3697 w->wd = -2;
2654 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3698 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2655 wlist_del (&fs_hash [slot].head, (WL)w); 3699 wlist_del (&fs_hash [slot].head, (WL)w);
2656 3700
2657 /* remove this watcher, if others are watching it, they will rearm */ 3701 /* remove this watcher, if others are watching it, they will rearm */
2658 inotify_rm_watch (fs_fd, wd); 3702 inotify_rm_watch (fs_fd, wd);
2659} 3703}
… …
2661static void noinline 3705static void noinline
2662infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3706infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2663{ 3707{
2664 if (slot < 0) 3708 if (slot < 0)
2665 /* overflow, need to check for all hash slots */ 3709 /* overflow, need to check for all hash slots */
2666 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3710 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2667 infy_wd (EV_A_ slot, wd, ev); 3711 infy_wd (EV_A_ slot, wd, ev);
2668 else 3712 else
2669 { 3713 {
2670 WL w_; 3714 WL w_;
2671 3715
2672 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3716 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2673 { 3717 {
2674 ev_stat *w = (ev_stat *)w_; 3718 ev_stat *w = (ev_stat *)w_;
2675 w_ = w_->next; /* lets us remove this watcher and all before it */ 3719 w_ = w_->next; /* lets us remove this watcher and all before it */
2676 3720
2677 if (w->wd == wd || wd == -1) 3721 if (w->wd == wd || wd == -1)
2678 { 3722 {
2679 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3723 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2680 { 3724 {
2681 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3725 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2682 w->wd = -1; 3726 w->wd = -1;
2683 infy_add (EV_A_ w); /* re-add, no matter what */ 3727 infy_add (EV_A_ w); /* re-add, no matter what */
2684 } 3728 }
2685 3729
2686 stat_timer_cb (EV_A_ &w->timer, 0); 3730 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2691 3735
2692static void 3736static void
2693infy_cb (EV_P_ ev_io *w, int revents) 3737infy_cb (EV_P_ ev_io *w, int revents)
2694{ 3738{
2695 char buf [EV_INOTIFY_BUFSIZE]; 3739 char buf [EV_INOTIFY_BUFSIZE];
2696 struct inotify_event *ev = (struct inotify_event *)buf;
2697 int ofs; 3740 int ofs;
2698 int len = read (fs_fd, buf, sizeof (buf)); 3741 int len = read (fs_fd, buf, sizeof (buf));
2699 3742
2700 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3743 for (ofs = 0; ofs < len; )
3744 {
3745 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2701 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3746 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3747 ofs += sizeof (struct inotify_event) + ev->len;
3748 }
2702} 3749}
2703 3750
2704inline_size void 3751inline_size void ecb_cold
2705check_2625 (EV_P) 3752ev_check_2625 (EV_P)
2706{ 3753{
2707 /* kernels < 2.6.25 are borked 3754 /* kernels < 2.6.25 are borked
2708 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3755 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2709 */ 3756 */
2710 struct utsname buf; 3757 if (ev_linux_version () < 0x020619)
2711 int major, minor, micro;
2712
2713 if (uname (&buf))
2714 return; 3758 return;
2715 3759
2716 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2717 return;
2718
2719 if (major < 2
2720 || (major == 2 && minor < 6)
2721 || (major == 2 && minor == 6 && micro < 25))
2722 return;
2723
2724 fs_2625 = 1; 3760 fs_2625 = 1;
3761}
3762
3763inline_size int
3764infy_newfd (void)
3765{
3766#if defined IN_CLOEXEC && defined IN_NONBLOCK
3767 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3768 if (fd >= 0)
3769 return fd;
3770#endif
3771 return inotify_init ();
2725} 3772}
2726 3773
2727inline_size void 3774inline_size void
2728infy_init (EV_P) 3775infy_init (EV_P)
2729{ 3776{
2730 if (fs_fd != -2) 3777 if (fs_fd != -2)
2731 return; 3778 return;
2732 3779
2733 fs_fd = -1; 3780 fs_fd = -1;
2734 3781
2735 check_2625 (EV_A); 3782 ev_check_2625 (EV_A);
2736 3783
2737 fs_fd = inotify_init (); 3784 fs_fd = infy_newfd ();
2738 3785
2739 if (fs_fd >= 0) 3786 if (fs_fd >= 0)
2740 { 3787 {
3788 fd_intern (fs_fd);
2741 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3789 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2742 ev_set_priority (&fs_w, EV_MAXPRI); 3790 ev_set_priority (&fs_w, EV_MAXPRI);
2743 ev_io_start (EV_A_ &fs_w); 3791 ev_io_start (EV_A_ &fs_w);
3792 ev_unref (EV_A);
2744 } 3793 }
2745} 3794}
2746 3795
2747inline_size void 3796inline_size void
2748infy_fork (EV_P) 3797infy_fork (EV_P)
… …
2750 int slot; 3799 int slot;
2751 3800
2752 if (fs_fd < 0) 3801 if (fs_fd < 0)
2753 return; 3802 return;
2754 3803
3804 ev_ref (EV_A);
3805 ev_io_stop (EV_A_ &fs_w);
2755 close (fs_fd); 3806 close (fs_fd);
2756 fs_fd = inotify_init (); 3807 fs_fd = infy_newfd ();
2757 3808
3809 if (fs_fd >= 0)
3810 {
3811 fd_intern (fs_fd);
3812 ev_io_set (&fs_w, fs_fd, EV_READ);
3813 ev_io_start (EV_A_ &fs_w);
3814 ev_unref (EV_A);
3815 }
3816
2758 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3817 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2759 { 3818 {
2760 WL w_ = fs_hash [slot].head; 3819 WL w_ = fs_hash [slot].head;
2761 fs_hash [slot].head = 0; 3820 fs_hash [slot].head = 0;
2762 3821
2763 while (w_) 3822 while (w_)
… …
2768 w->wd = -1; 3827 w->wd = -1;
2769 3828
2770 if (fs_fd >= 0) 3829 if (fs_fd >= 0)
2771 infy_add (EV_A_ w); /* re-add, no matter what */ 3830 infy_add (EV_A_ w); /* re-add, no matter what */
2772 else 3831 else
3832 {
3833 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3834 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2773 ev_timer_again (EV_A_ &w->timer); 3835 ev_timer_again (EV_A_ &w->timer);
3836 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3837 }
2774 } 3838 }
2775 } 3839 }
2776} 3840}
2777 3841
2778#endif 3842#endif
… …
2782#else 3846#else
2783# define EV_LSTAT(p,b) lstat (p, b) 3847# define EV_LSTAT(p,b) lstat (p, b)
2784#endif 3848#endif
2785 3849
2786void 3850void
2787ev_stat_stat (EV_P_ ev_stat *w) 3851ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2788{ 3852{
2789 if (lstat (w->path, &w->attr) < 0) 3853 if (lstat (w->path, &w->attr) < 0)
2790 w->attr.st_nlink = 0; 3854 w->attr.st_nlink = 0;
2791 else if (!w->attr.st_nlink) 3855 else if (!w->attr.st_nlink)
2792 w->attr.st_nlink = 1; 3856 w->attr.st_nlink = 1;
… …
2795static void noinline 3859static void noinline
2796stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3860stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2797{ 3861{
2798 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3862 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2799 3863
2800 /* we copy this here each the time so that */ 3864 ev_statdata prev = w->attr;
2801 /* prev has the old value when the callback gets invoked */
2802 w->prev = w->attr;
2803 ev_stat_stat (EV_A_ w); 3865 ev_stat_stat (EV_A_ w);
2804 3866
2805 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3867 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2806 if ( 3868 if (
2807 w->prev.st_dev != w->attr.st_dev 3869 prev.st_dev != w->attr.st_dev
2808 || w->prev.st_ino != w->attr.st_ino 3870 || prev.st_ino != w->attr.st_ino
2809 || w->prev.st_mode != w->attr.st_mode 3871 || prev.st_mode != w->attr.st_mode
2810 || w->prev.st_nlink != w->attr.st_nlink 3872 || prev.st_nlink != w->attr.st_nlink
2811 || w->prev.st_uid != w->attr.st_uid 3873 || prev.st_uid != w->attr.st_uid
2812 || w->prev.st_gid != w->attr.st_gid 3874 || prev.st_gid != w->attr.st_gid
2813 || w->prev.st_rdev != w->attr.st_rdev 3875 || prev.st_rdev != w->attr.st_rdev
2814 || w->prev.st_size != w->attr.st_size 3876 || prev.st_size != w->attr.st_size
2815 || w->prev.st_atime != w->attr.st_atime 3877 || prev.st_atime != w->attr.st_atime
2816 || w->prev.st_mtime != w->attr.st_mtime 3878 || prev.st_mtime != w->attr.st_mtime
2817 || w->prev.st_ctime != w->attr.st_ctime 3879 || prev.st_ctime != w->attr.st_ctime
2818 ) { 3880 ) {
3881 /* we only update w->prev on actual differences */
3882 /* in case we test more often than invoke the callback, */
3883 /* to ensure that prev is always different to attr */
3884 w->prev = prev;
3885
2819 #if EV_USE_INOTIFY 3886 #if EV_USE_INOTIFY
2820 if (fs_fd >= 0) 3887 if (fs_fd >= 0)
2821 { 3888 {
2822 infy_del (EV_A_ w); 3889 infy_del (EV_A_ w);
2823 infy_add (EV_A_ w); 3890 infy_add (EV_A_ w);
… …
2828 ev_feed_event (EV_A_ w, EV_STAT); 3895 ev_feed_event (EV_A_ w, EV_STAT);
2829 } 3896 }
2830} 3897}
2831 3898
2832void 3899void
2833ev_stat_start (EV_P_ ev_stat *w) 3900ev_stat_start (EV_P_ ev_stat *w) EV_THROW
2834{ 3901{
2835 if (expect_false (ev_is_active (w))) 3902 if (expect_false (ev_is_active (w)))
2836 return; 3903 return;
2837 3904
2838 ev_stat_stat (EV_A_ w); 3905 ev_stat_stat (EV_A_ w);
… …
2848 3915
2849 if (fs_fd >= 0) 3916 if (fs_fd >= 0)
2850 infy_add (EV_A_ w); 3917 infy_add (EV_A_ w);
2851 else 3918 else
2852#endif 3919#endif
3920 {
2853 ev_timer_again (EV_A_ &w->timer); 3921 ev_timer_again (EV_A_ &w->timer);
3922 ev_unref (EV_A);
3923 }
2854 3924
2855 ev_start (EV_A_ (W)w, 1); 3925 ev_start (EV_A_ (W)w, 1);
2856 3926
2857 EV_FREQUENT_CHECK; 3927 EV_FREQUENT_CHECK;
2858} 3928}
2859 3929
2860void 3930void
2861ev_stat_stop (EV_P_ ev_stat *w) 3931ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
2862{ 3932{
2863 clear_pending (EV_A_ (W)w); 3933 clear_pending (EV_A_ (W)w);
2864 if (expect_false (!ev_is_active (w))) 3934 if (expect_false (!ev_is_active (w)))
2865 return; 3935 return;
2866 3936
2867 EV_FREQUENT_CHECK; 3937 EV_FREQUENT_CHECK;
2868 3938
2869#if EV_USE_INOTIFY 3939#if EV_USE_INOTIFY
2870 infy_del (EV_A_ w); 3940 infy_del (EV_A_ w);
2871#endif 3941#endif
3942
3943 if (ev_is_active (&w->timer))
3944 {
3945 ev_ref (EV_A);
2872 ev_timer_stop (EV_A_ &w->timer); 3946 ev_timer_stop (EV_A_ &w->timer);
3947 }
2873 3948
2874 ev_stop (EV_A_ (W)w); 3949 ev_stop (EV_A_ (W)w);
2875 3950
2876 EV_FREQUENT_CHECK; 3951 EV_FREQUENT_CHECK;
2877} 3952}
2878#endif 3953#endif
2879 3954
2880#if EV_IDLE_ENABLE 3955#if EV_IDLE_ENABLE
2881void 3956void
2882ev_idle_start (EV_P_ ev_idle *w) 3957ev_idle_start (EV_P_ ev_idle *w) EV_THROW
2883{ 3958{
2884 if (expect_false (ev_is_active (w))) 3959 if (expect_false (ev_is_active (w)))
2885 return; 3960 return;
2886 3961
2887 pri_adjust (EV_A_ (W)w); 3962 pri_adjust (EV_A_ (W)w);
… …
2900 3975
2901 EV_FREQUENT_CHECK; 3976 EV_FREQUENT_CHECK;
2902} 3977}
2903 3978
2904void 3979void
2905ev_idle_stop (EV_P_ ev_idle *w) 3980ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
2906{ 3981{
2907 clear_pending (EV_A_ (W)w); 3982 clear_pending (EV_A_ (W)w);
2908 if (expect_false (!ev_is_active (w))) 3983 if (expect_false (!ev_is_active (w)))
2909 return; 3984 return;
2910 3985
… …
2922 3997
2923 EV_FREQUENT_CHECK; 3998 EV_FREQUENT_CHECK;
2924} 3999}
2925#endif 4000#endif
2926 4001
4002#if EV_PREPARE_ENABLE
2927void 4003void
2928ev_prepare_start (EV_P_ ev_prepare *w) 4004ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
2929{ 4005{
2930 if (expect_false (ev_is_active (w))) 4006 if (expect_false (ev_is_active (w)))
2931 return; 4007 return;
2932 4008
2933 EV_FREQUENT_CHECK; 4009 EV_FREQUENT_CHECK;
… …
2938 4014
2939 EV_FREQUENT_CHECK; 4015 EV_FREQUENT_CHECK;
2940} 4016}
2941 4017
2942void 4018void
2943ev_prepare_stop (EV_P_ ev_prepare *w) 4019ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
2944{ 4020{
2945 clear_pending (EV_A_ (W)w); 4021 clear_pending (EV_A_ (W)w);
2946 if (expect_false (!ev_is_active (w))) 4022 if (expect_false (!ev_is_active (w)))
2947 return; 4023 return;
2948 4024
… …
2957 4033
2958 ev_stop (EV_A_ (W)w); 4034 ev_stop (EV_A_ (W)w);
2959 4035
2960 EV_FREQUENT_CHECK; 4036 EV_FREQUENT_CHECK;
2961} 4037}
4038#endif
2962 4039
4040#if EV_CHECK_ENABLE
2963void 4041void
2964ev_check_start (EV_P_ ev_check *w) 4042ev_check_start (EV_P_ ev_check *w) EV_THROW
2965{ 4043{
2966 if (expect_false (ev_is_active (w))) 4044 if (expect_false (ev_is_active (w)))
2967 return; 4045 return;
2968 4046
2969 EV_FREQUENT_CHECK; 4047 EV_FREQUENT_CHECK;
… …
2974 4052
2975 EV_FREQUENT_CHECK; 4053 EV_FREQUENT_CHECK;
2976} 4054}
2977 4055
2978void 4056void
2979ev_check_stop (EV_P_ ev_check *w) 4057ev_check_stop (EV_P_ ev_check *w) EV_THROW
2980{ 4058{
2981 clear_pending (EV_A_ (W)w); 4059 clear_pending (EV_A_ (W)w);
2982 if (expect_false (!ev_is_active (w))) 4060 if (expect_false (!ev_is_active (w)))
2983 return; 4061 return;
2984 4062
… …
2993 4071
2994 ev_stop (EV_A_ (W)w); 4072 ev_stop (EV_A_ (W)w);
2995 4073
2996 EV_FREQUENT_CHECK; 4074 EV_FREQUENT_CHECK;
2997} 4075}
4076#endif
2998 4077
2999#if EV_EMBED_ENABLE 4078#if EV_EMBED_ENABLE
3000void noinline 4079void noinline
3001ev_embed_sweep (EV_P_ ev_embed *w) 4080ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3002{ 4081{
3003 ev_loop (w->other, EVLOOP_NONBLOCK); 4082 ev_run (w->other, EVRUN_NOWAIT);
3004} 4083}
3005 4084
3006static void 4085static void
3007embed_io_cb (EV_P_ ev_io *io, int revents) 4086embed_io_cb (EV_P_ ev_io *io, int revents)
3008{ 4087{
3009 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4088 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3010 4089
3011 if (ev_cb (w)) 4090 if (ev_cb (w))
3012 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4091 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3013 else 4092 else
3014 ev_loop (w->other, EVLOOP_NONBLOCK); 4093 ev_run (w->other, EVRUN_NOWAIT);
3015} 4094}
3016 4095
3017static void 4096static void
3018embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4097embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3019{ 4098{
3020 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4099 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3021 4100
3022 { 4101 {
3023 struct ev_loop *loop = w->other; 4102 EV_P = w->other;
3024 4103
3025 while (fdchangecnt) 4104 while (fdchangecnt)
3026 { 4105 {
3027 fd_reify (EV_A); 4106 fd_reify (EV_A);
3028 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4107 ev_run (EV_A_ EVRUN_NOWAIT);
3029 } 4108 }
3030 } 4109 }
3031} 4110}
3032 4111
3033static void 4112static void
… …
3036 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4115 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3037 4116
3038 ev_embed_stop (EV_A_ w); 4117 ev_embed_stop (EV_A_ w);
3039 4118
3040 { 4119 {
3041 struct ev_loop *loop = w->other; 4120 EV_P = w->other;
3042 4121
3043 ev_loop_fork (EV_A); 4122 ev_loop_fork (EV_A);
3044 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4123 ev_run (EV_A_ EVRUN_NOWAIT);
3045 } 4124 }
3046 4125
3047 ev_embed_start (EV_A_ w); 4126 ev_embed_start (EV_A_ w);
3048} 4127}
3049 4128
… …
3054 ev_idle_stop (EV_A_ idle); 4133 ev_idle_stop (EV_A_ idle);
3055} 4134}
3056#endif 4135#endif
3057 4136
3058void 4137void
3059ev_embed_start (EV_P_ ev_embed *w) 4138ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3060{ 4139{
3061 if (expect_false (ev_is_active (w))) 4140 if (expect_false (ev_is_active (w)))
3062 return; 4141 return;
3063 4142
3064 { 4143 {
3065 struct ev_loop *loop = w->other; 4144 EV_P = w->other;
3066 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4145 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3067 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4146 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3068 } 4147 }
3069 4148
3070 EV_FREQUENT_CHECK; 4149 EV_FREQUENT_CHECK;
… …
3085 4164
3086 EV_FREQUENT_CHECK; 4165 EV_FREQUENT_CHECK;
3087} 4166}
3088 4167
3089void 4168void
3090ev_embed_stop (EV_P_ ev_embed *w) 4169ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3091{ 4170{
3092 clear_pending (EV_A_ (W)w); 4171 clear_pending (EV_A_ (W)w);
3093 if (expect_false (!ev_is_active (w))) 4172 if (expect_false (!ev_is_active (w)))
3094 return; 4173 return;
3095 4174
… …
3097 4176
3098 ev_io_stop (EV_A_ &w->io); 4177 ev_io_stop (EV_A_ &w->io);
3099 ev_prepare_stop (EV_A_ &w->prepare); 4178 ev_prepare_stop (EV_A_ &w->prepare);
3100 ev_fork_stop (EV_A_ &w->fork); 4179 ev_fork_stop (EV_A_ &w->fork);
3101 4180
4181 ev_stop (EV_A_ (W)w);
4182
3102 EV_FREQUENT_CHECK; 4183 EV_FREQUENT_CHECK;
3103} 4184}
3104#endif 4185#endif
3105 4186
3106#if EV_FORK_ENABLE 4187#if EV_FORK_ENABLE
3107void 4188void
3108ev_fork_start (EV_P_ ev_fork *w) 4189ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3109{ 4190{
3110 if (expect_false (ev_is_active (w))) 4191 if (expect_false (ev_is_active (w)))
3111 return; 4192 return;
3112 4193
3113 EV_FREQUENT_CHECK; 4194 EV_FREQUENT_CHECK;
… …
3118 4199
3119 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3120} 4201}
3121 4202
3122void 4203void
3123ev_fork_stop (EV_P_ ev_fork *w) 4204ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3124{ 4205{
3125 clear_pending (EV_A_ (W)w); 4206 clear_pending (EV_A_ (W)w);
3126 if (expect_false (!ev_is_active (w))) 4207 if (expect_false (!ev_is_active (w)))
3127 return; 4208 return;
3128 4209
… …
3139 4220
3140 EV_FREQUENT_CHECK; 4221 EV_FREQUENT_CHECK;
3141} 4222}
3142#endif 4223#endif
3143 4224
4225#if EV_CLEANUP_ENABLE
4226void
4227ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4228{
4229 if (expect_false (ev_is_active (w)))
4230 return;
4231
4232 EV_FREQUENT_CHECK;
4233
4234 ev_start (EV_A_ (W)w, ++cleanupcnt);
4235 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4236 cleanups [cleanupcnt - 1] = w;
4237
4238 /* cleanup watchers should never keep a refcount on the loop */
4239 ev_unref (EV_A);
4240 EV_FREQUENT_CHECK;
4241}
4242
4243void
4244ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4245{
4246 clear_pending (EV_A_ (W)w);
4247 if (expect_false (!ev_is_active (w)))
4248 return;
4249
4250 EV_FREQUENT_CHECK;
4251 ev_ref (EV_A);
4252
4253 {
4254 int active = ev_active (w);
4255
4256 cleanups [active - 1] = cleanups [--cleanupcnt];
4257 ev_active (cleanups [active - 1]) = active;
4258 }
4259
4260 ev_stop (EV_A_ (W)w);
4261
4262 EV_FREQUENT_CHECK;
4263}
4264#endif
4265
3144#if EV_ASYNC_ENABLE 4266#if EV_ASYNC_ENABLE
3145void 4267void
3146ev_async_start (EV_P_ ev_async *w) 4268ev_async_start (EV_P_ ev_async *w) EV_THROW
3147{ 4269{
3148 if (expect_false (ev_is_active (w))) 4270 if (expect_false (ev_is_active (w)))
3149 return; 4271 return;
4272
4273 w->sent = 0;
3150 4274
3151 evpipe_init (EV_A); 4275 evpipe_init (EV_A);
3152 4276
3153 EV_FREQUENT_CHECK; 4277 EV_FREQUENT_CHECK;
3154 4278
… …
3158 4282
3159 EV_FREQUENT_CHECK; 4283 EV_FREQUENT_CHECK;
3160} 4284}
3161 4285
3162void 4286void
3163ev_async_stop (EV_P_ ev_async *w) 4287ev_async_stop (EV_P_ ev_async *w) EV_THROW
3164{ 4288{
3165 clear_pending (EV_A_ (W)w); 4289 clear_pending (EV_A_ (W)w);
3166 if (expect_false (!ev_is_active (w))) 4290 if (expect_false (!ev_is_active (w)))
3167 return; 4291 return;
3168 4292
… …
3179 4303
3180 EV_FREQUENT_CHECK; 4304 EV_FREQUENT_CHECK;
3181} 4305}
3182 4306
3183void 4307void
3184ev_async_send (EV_P_ ev_async *w) 4308ev_async_send (EV_P_ ev_async *w) EV_THROW
3185{ 4309{
3186 w->sent = 1; 4310 w->sent = 1;
3187 evpipe_write (EV_A_ &gotasync); 4311 evpipe_write (EV_A_ &async_pending);
3188} 4312}
3189#endif 4313#endif
3190 4314
3191/*****************************************************************************/ 4315/*****************************************************************************/
3192 4316
… …
3226 4350
3227 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4351 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3228} 4352}
3229 4353
3230void 4354void
3231ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4355ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3232{ 4356{
3233 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4357 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3234 4358
3235 if (expect_false (!once)) 4359 if (expect_false (!once))
3236 { 4360 {
3237 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4361 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3238 return; 4362 return;
3239 } 4363 }
3240 4364
3241 once->cb = cb; 4365 once->cb = cb;
3242 once->arg = arg; 4366 once->arg = arg;
… …
3257} 4381}
3258 4382
3259/*****************************************************************************/ 4383/*****************************************************************************/
3260 4384
3261#if EV_WALK_ENABLE 4385#if EV_WALK_ENABLE
3262void 4386void ecb_cold
3263ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4387ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3264{ 4388{
3265 int i, j; 4389 int i, j;
3266 ev_watcher_list *wl, *wn; 4390 ev_watcher_list *wl, *wn;
3267 4391
3268 if (types & (EV_IO | EV_EMBED)) 4392 if (types & (EV_IO | EV_EMBED))
… …
3311 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4435 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3312#endif 4436#endif
3313 4437
3314#if EV_IDLE_ENABLE 4438#if EV_IDLE_ENABLE
3315 if (types & EV_IDLE) 4439 if (types & EV_IDLE)
3316 for (j = NUMPRI; i--; ) 4440 for (j = NUMPRI; j--; )
3317 for (i = idlecnt [j]; i--; ) 4441 for (i = idlecnt [j]; i--; )
3318 cb (EV_A_ EV_IDLE, idles [j][i]); 4442 cb (EV_A_ EV_IDLE, idles [j][i]);
3319#endif 4443#endif
3320 4444
3321#if EV_FORK_ENABLE 4445#if EV_FORK_ENABLE
… …
3329 if (types & EV_ASYNC) 4453 if (types & EV_ASYNC)
3330 for (i = asynccnt; i--; ) 4454 for (i = asynccnt; i--; )
3331 cb (EV_A_ EV_ASYNC, asyncs [i]); 4455 cb (EV_A_ EV_ASYNC, asyncs [i]);
3332#endif 4456#endif
3333 4457
4458#if EV_PREPARE_ENABLE
3334 if (types & EV_PREPARE) 4459 if (types & EV_PREPARE)
3335 for (i = preparecnt; i--; ) 4460 for (i = preparecnt; i--; )
3336#if EV_EMBED_ENABLE 4461# if EV_EMBED_ENABLE
3337 if (ev_cb (prepares [i]) != embed_prepare_cb) 4462 if (ev_cb (prepares [i]) != embed_prepare_cb)
3338#endif 4463# endif
3339 cb (EV_A_ EV_PREPARE, prepares [i]); 4464 cb (EV_A_ EV_PREPARE, prepares [i]);
4465#endif
3340 4466
4467#if EV_CHECK_ENABLE
3341 if (types & EV_CHECK) 4468 if (types & EV_CHECK)
3342 for (i = checkcnt; i--; ) 4469 for (i = checkcnt; i--; )
3343 cb (EV_A_ EV_CHECK, checks [i]); 4470 cb (EV_A_ EV_CHECK, checks [i]);
4471#endif
3344 4472
4473#if EV_SIGNAL_ENABLE
3345 if (types & EV_SIGNAL) 4474 if (types & EV_SIGNAL)
3346 for (i = 0; i < signalmax; ++i) 4475 for (i = 0; i < EV_NSIG - 1; ++i)
3347 for (wl = signals [i].head; wl; ) 4476 for (wl = signals [i].head; wl; )
3348 { 4477 {
3349 wn = wl->next; 4478 wn = wl->next;
3350 cb (EV_A_ EV_SIGNAL, wl); 4479 cb (EV_A_ EV_SIGNAL, wl);
3351 wl = wn; 4480 wl = wn;
3352 } 4481 }
4482#endif
3353 4483
4484#if EV_CHILD_ENABLE
3354 if (types & EV_CHILD) 4485 if (types & EV_CHILD)
3355 for (i = EV_PID_HASHSIZE; i--; ) 4486 for (i = (EV_PID_HASHSIZE); i--; )
3356 for (wl = childs [i]; wl; ) 4487 for (wl = childs [i]; wl; )
3357 { 4488 {
3358 wn = wl->next; 4489 wn = wl->next;
3359 cb (EV_A_ EV_CHILD, wl); 4490 cb (EV_A_ EV_CHILD, wl);
3360 wl = wn; 4491 wl = wn;
3361 } 4492 }
4493#endif
3362/* EV_STAT 0x00001000 /* stat data changed */ 4494/* EV_STAT 0x00001000 /* stat data changed */
3363/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4495/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3364} 4496}
3365#endif 4497#endif
3366 4498
3367#if EV_MULTIPLICITY 4499#if EV_MULTIPLICITY
3368 #include "ev_wrap.h" 4500 #include "ev_wrap.h"
3369#endif 4501#endif
3370 4502
3371#ifdef __cplusplus
3372}
3373#endif
3374

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