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Comparing libev/ev.c (file contents):
Revision 1.316 by root, Fri Sep 18 21:02:12 2009 UTC vs.
Revision 1.420 by root, Wed Apr 18 05:44:42 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
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
158#include <fcntl.h> 169#include <fcntl.h>
159#include <stddef.h> 170#include <stddef.h>
160 171
161#include <stdio.h> 172#include <stdio.h>
162 173
163#include <assert.h> 174#include <assert.h>
164#include <errno.h> 175#include <errno.h>
165#include <sys/types.h> 176#include <sys/types.h>
166#include <time.h> 177#include <time.h>
178#include <limits.h>
167 179
168#include <signal.h> 180#include <signal.h>
169 181
170#ifdef EV_H 182#ifdef EV_H
171# include EV_H 183# include EV_H
172#else 184#else
173# 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
174#endif 197#endif
175 198
176#ifndef _WIN32 199#ifndef _WIN32
177# include <sys/time.h> 200# include <sys/time.h>
178# include <sys/wait.h> 201# include <sys/wait.h>
… …
182# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
183# include <windows.h> 206# include <windows.h>
184# ifndef EV_SELECT_IS_WINSOCKET 207# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 208# define EV_SELECT_IS_WINSOCKET 1
186# endif 209# endif
210# undef EV_AVOID_STDIO
187#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
188 220
189/* 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 */
190 222
191/* try to deduce the maximum number of signals on this platform */ 223/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG) 224#if defined EV_NSIG
193/* use what's provided */ 225/* use what's provided */
194#elif defined (NSIG) 226#elif defined NSIG
195# define EV_NSIG (NSIG) 227# define EV_NSIG (NSIG)
196#elif defined(_NSIG) 228#elif defined _NSIG
197# define EV_NSIG (_NSIG) 229# define EV_NSIG (_NSIG)
198#elif defined (SIGMAX) 230#elif defined SIGMAX
199# define EV_NSIG (SIGMAX+1) 231# define EV_NSIG (SIGMAX+1)
200#elif defined (SIG_MAX) 232#elif defined SIG_MAX
201# define EV_NSIG (SIG_MAX+1) 233# define EV_NSIG (SIG_MAX+1)
202#elif defined (_SIG_MAX) 234#elif defined _SIG_MAX
203# define EV_NSIG (_SIG_MAX+1) 235# define EV_NSIG (_SIG_MAX+1)
204#elif defined (MAXSIG) 236#elif defined MAXSIG
205# define EV_NSIG (MAXSIG+1) 237# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG) 238#elif defined MAX_SIG
207# define EV_NSIG (MAX_SIG+1) 239# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE) 240#elif defined SIGARRAYSIZE
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig) 242#elif defined _sys_nsig
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else 244#else
213# error "unable to find value for NSIG, please report" 245# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */ 246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
215# define EV_NSIG 65 248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
216#endif 253#endif
217 254
218#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221# else 258# else
222# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
223# endif 260# endif
224#endif 261#endif
225 262
226#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
229# else 266# else
230# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
231# endif 268# endif
232#endif 269#endif
233 270
… …
235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236#endif 273#endif
237 274
238#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
241# else 278# else
242# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
243# endif 280# endif
244#endif 281#endif
245 282
246#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
247# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
248#endif 285#endif
249 286
250#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
251# ifdef _WIN32 288# ifdef _WIN32
252# define EV_USE_POLL 0 289# define EV_USE_POLL 0
253# else 290# else
254# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
255# endif 292# endif
256#endif 293#endif
257 294
258#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
259# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261# else 298# else
262# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
263# endif 300# endif
264#endif 301#endif
265 302
… …
271# define EV_USE_PORT 0 308# define EV_USE_PORT 0
272#endif 309#endif
273 310
274#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
275# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
277# else 314# else
278# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
279# endif 316# endif
280#endif 317#endif
281 318
282#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
283# if EV_MINIMAL 320# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
284# define EV_PID_HASHSIZE 1
285# else
286# define EV_PID_HASHSIZE 16
287# endif
288#endif 321#endif
289 322
290#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
291# if EV_MINIMAL 324# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
292# define EV_INOTIFY_HASHSIZE 1
293# else
294# define EV_INOTIFY_HASHSIZE 16
295# endif
296#endif 325#endif
297 326
298#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
299# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
301# else 330# else
302# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
303# endif 332# endif
304#endif 333#endif
305 334
306#ifndef EV_USE_SIGNALFD 335#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308# define EV_USE_SIGNALFD 1 337# define EV_USE_SIGNALFD EV_FEATURE_OS
309# else 338# else
310# define EV_USE_SIGNALFD 0 339# define EV_USE_SIGNALFD 0
311# endif 340# endif
312#endif 341#endif
313 342
… …
316# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
317# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
318#endif 347#endif
319 348
320#ifndef EV_VERIFY 349#ifndef EV_VERIFY
321# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322#endif 351#endif
323 352
324#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
325# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
326#endif 355#endif
327 356
328#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
329# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330#endif 359#endif
331 360
332/* 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, */
333/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
… …
343# endif 372# endif
344#endif 373#endif
345 374
346/* 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 */
347 376
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
348#ifndef CLOCK_MONOTONIC 383#ifndef CLOCK_MONOTONIC
349# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
350# define EV_USE_MONOTONIC 0 385# define EV_USE_MONOTONIC 0
351#endif 386#endif
352 387
… …
359# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
360# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
361#endif 396#endif
362 397
363#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
364# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
365# include <sys/select.h> 401# include <sys/select.h>
366# endif 402# endif
367#endif 403#endif
368 404
369#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h> 406# include <sys/statfs.h>
372# include <sys/inotify.h> 407# include <sys/inotify.h>
373/* 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 */
374# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
375# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
392# define EFD_CLOEXEC O_CLOEXEC 427# define EFD_CLOEXEC O_CLOEXEC
393# else 428# else
394# define EFD_CLOEXEC 02000000 429# define EFD_CLOEXEC 02000000
395# endif 430# endif
396# endif 431# endif
397# ifdef __cplusplus
398extern "C" {
399# endif
400int eventfd (unsigned int initval, int flags); 432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
401# ifdef __cplusplus
402}
403# endif
404#endif 433#endif
405 434
406#if EV_USE_SIGNALFD 435#if EV_USE_SIGNALFD
407/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 436/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
408# include <stdint.h> 437# include <stdint.h>
… …
414# define SFD_CLOEXEC O_CLOEXEC 443# define SFD_CLOEXEC O_CLOEXEC
415# else 444# else
416# define SFD_CLOEXEC 02000000 445# define SFD_CLOEXEC 02000000
417# endif 446# endif
418# endif 447# endif
419# ifdef __cplusplus
420extern "C" {
421# endif
422int signalfd (int fd, const sigset_t *mask, int flags); 448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
423 449
424struct signalfd_siginfo 450struct signalfd_siginfo
425{ 451{
426 uint32_t ssi_signo; 452 uint32_t ssi_signo;
427 char pad[128 - sizeof (uint32_t)]; 453 char pad[128 - sizeof (uint32_t)];
428}; 454};
429# ifdef __cplusplus
430}
431# endif 455#endif
432#endif
433
434 456
435/**/ 457/**/
436 458
437#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
438# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
439#else 461#else
440# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
441#endif 463#endif
442 464
443/* 465/*
444 * This is used to avoid floating point rounding problems. 466 * This is used to work around floating point rounding problems.
445 * It is added to ev_rt_now when scheduling periodics
446 * to ensure progress, time-wise, even when rounding
447 * errors are against us.
448 * This value is good at least till the year 4000. 467 * This value is good at least till the year 4000.
449 * Better solutions welcome.
450 */ 468 */
451#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 */
452 471
453#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) */
454#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) */
455 474
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;
456#if __GNUC__ >= 4 519 #if __GNUC__
457# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
458# 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
459#else 526#else
460# define expect(expr,value) (expr) 527 #include <inttypes.h>
461# define noinline
462# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
463# define inline
464# 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)))
465#endif 542 #endif
543#endif
466 544
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. */
467#define expect_false(expr) expect ((expr) != 0, 0) 708#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
468#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
469#define inline_size static inline 960#define inline_size ecb_inline
470 961
471#if EV_MINIMAL 962#if EV_FEATURE_CODE
963# define inline_speed ecb_inline
964#else
472# define inline_speed static noinline 965# define inline_speed static noinline
473#else
474# define inline_speed static inline
475#endif 966#endif
476 967
477#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
478 969
479#if EV_MINPRI == EV_MAXPRI 970#if EV_MINPRI == EV_MAXPRI
… …
492#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
493#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
494 985
495#if EV_USE_REALTIME 986#if EV_USE_REALTIME
496/* 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 */
497/* giving it a reasonably high chance of working on typical architetcures */ 988/* giving it a reasonably high chance of working on typical architectures */
498static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
499#endif 990#endif
500 991
501#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
502static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
504 995
505#ifndef EV_FD_TO_WIN32_HANDLE 996#ifndef EV_FD_TO_WIN32_HANDLE
506# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) 997# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
507#endif 998#endif
508#ifndef EV_WIN32_HANDLE_TO_FD 999#ifndef EV_WIN32_HANDLE_TO_FD
509# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) 1000# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
510#endif 1001#endif
511#ifndef EV_WIN32_CLOSE_FD 1002#ifndef EV_WIN32_CLOSE_FD
512# define EV_WIN32_CLOSE_FD(fd) close (fd) 1003# define EV_WIN32_CLOSE_FD(fd) close (fd)
513#endif 1004#endif
514 1005
… …
516# include "ev_win32.c" 1007# include "ev_win32.c"
517#endif 1008#endif
518 1009
519/*****************************************************************************/ 1010/*****************************************************************************/
520 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
521static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
522 1111
523void 1112void ecb_cold
524ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
525{ 1114{
526 syserr_cb = cb; 1115 syserr_cb = cb;
527} 1116}
528 1117
529static void noinline 1118static void noinline ecb_cold
530ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
531{ 1120{
532 if (!msg) 1121 if (!msg)
533 msg = "(libev) system error"; 1122 msg = "(libev) system error";
534 1123
535 if (syserr_cb) 1124 if (syserr_cb)
536 syserr_cb (msg); 1125 syserr_cb (msg);
537 else 1126 else
538 { 1127 {
1128#if EV_AVOID_STDIO
1129 ev_printerr (msg);
1130 ev_printerr (": ");
1131 ev_printerr (strerror (errno));
1132 ev_printerr ("\n");
1133#else
539 perror (msg); 1134 perror (msg);
1135#endif
540 abort (); 1136 abort ();
541 } 1137 }
542} 1138}
543 1139
544static void * 1140static void *
545ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
546{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
547 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
548 * 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
549 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
550 */ 1149 */
551 1150
552 if (size) 1151 if (size)
553 return realloc (ptr, size); 1152 return realloc (ptr, size);
554 1153
555 free (ptr); 1154 free (ptr);
556 return 0; 1155 return 0;
1156#endif
557} 1157}
558 1158
559static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
560 1160
561void 1161void ecb_cold
562ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
563{ 1163{
564 alloc = cb; 1164 alloc = cb;
565} 1165}
566 1166
567inline_speed void * 1167inline_speed void *
… …
569{ 1169{
570 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
571 1171
572 if (!ptr && size) 1172 if (!ptr && size)
573 { 1173 {
1174#if EV_AVOID_STDIO
1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1176#else
574 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1178#endif
575 abort (); 1179 abort ();
576 } 1180 }
577 1181
578 return ptr; 1182 return ptr;
579} 1183}
… …
595 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 */
596 unsigned char unused; 1200 unsigned char unused;
597#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
598 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
599#endif 1203#endif
600#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
601 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
602#endif 1209#endif
603} ANFD; 1210} ANFD;
604 1211
605/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
606typedef struct 1213typedef struct
… …
648 #undef VAR 1255 #undef VAR
649 }; 1256 };
650 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
651 1258
652 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
653 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 */
654 1261
655#else 1262#else
656 1263
657 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 */
658 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
659 #include "ev_vars.h" 1266 #include "ev_vars.h"
660 #undef VAR 1267 #undef VAR
661 1268
662 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
663 1270
664#endif 1271#endif
665 1272
666#if EV_MINIMAL < 2 1273#if EV_FEATURE_API
667# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1274# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
668# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1275# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
669# define EV_INVOKE_PENDING invoke_cb (EV_A) 1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
670#else 1277#else
671# define EV_RELEASE_CB (void)0 1278# define EV_RELEASE_CB (void)0
672# define EV_ACQUIRE_CB (void)0 1279# define EV_ACQUIRE_CB (void)0
673# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
674#endif 1281#endif
675 1282
676#define EVUNLOOP_RECURSE 0x80 1283#define EVBREAK_RECURSE 0x80
677 1284
678/*****************************************************************************/ 1285/*****************************************************************************/
679 1286
680#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
681ev_tstamp 1288ev_tstamp
682ev_time (void) 1289ev_time (void) EV_THROW
683{ 1290{
684#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
685 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
686 { 1293 {
687 struct timespec ts; 1294 struct timespec ts;
… …
711 return ev_time (); 1318 return ev_time ();
712} 1319}
713 1320
714#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
715ev_tstamp 1322ev_tstamp
716ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
717{ 1324{
718 return ev_rt_now; 1325 return ev_rt_now;
719} 1326}
720#endif 1327#endif
721 1328
722void 1329void
723ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
724{ 1331{
725 if (delay > 0.) 1332 if (delay > 0.)
726 { 1333 {
727#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
728 struct timespec ts; 1335 struct timespec ts;
729 1336
730 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
731 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
732
733 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
734#elif defined(_WIN32) 1339#elif defined _WIN32
735 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
736#else 1341#else
737 struct timeval tv; 1342 struct timeval tv;
738 1343
739 tv.tv_sec = (time_t)delay;
740 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
741
742 /* 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 */
743 /* something not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
744 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
745 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
746#endif 1349#endif
747 } 1350 }
748} 1351}
749 1352
750/*****************************************************************************/ 1353/*****************************************************************************/
751 1354
752#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 */
753 1356
754/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
755/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
756inline_size int 1359inline_size int
757array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
758{ 1361{
759 int ncur = cur + 1; 1362 int ncur = cur + 1;
760 1363
761 do 1364 do
762 ncur <<= 1; 1365 ncur <<= 1;
763 while (cnt > ncur); 1366 while (cnt > ncur);
764 1367
765 /* 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 */
766 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
767 { 1370 {
768 ncur *= elem; 1371 ncur *= elem;
769 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);
770 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
772 } 1375 }
773 1376
774 return ncur; 1377 return ncur;
775} 1378}
776 1379
777static noinline void * 1380static void * noinline ecb_cold
778array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
779{ 1382{
780 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
781 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
782} 1385}
… …
785 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
786 1389
787#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
788 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
789 { \ 1392 { \
790 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
791 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
792 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
793 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
794 } 1397 }
795 1398
… …
813pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
814{ 1417{
815} 1418}
816 1419
817void noinline 1420void noinline
818ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
819{ 1422{
820 W w_ = (W)w; 1423 W w_ = (W)w;
821 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
822 1425
823 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
856} 1459}
857 1460
858/*****************************************************************************/ 1461/*****************************************************************************/
859 1462
860inline_speed void 1463inline_speed void
861fd_event_nc (EV_P_ int fd, int revents) 1464fd_event_nocheck (EV_P_ int fd, int revents)
862{ 1465{
863 ANFD *anfd = anfds + fd; 1466 ANFD *anfd = anfds + fd;
864 ev_io *w; 1467 ev_io *w;
865 1468
866 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1469 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
878fd_event (EV_P_ int fd, int revents) 1481fd_event (EV_P_ int fd, int revents)
879{ 1482{
880 ANFD *anfd = anfds + fd; 1483 ANFD *anfd = anfds + fd;
881 1484
882 if (expect_true (!anfd->reify)) 1485 if (expect_true (!anfd->reify))
883 fd_event_nc (EV_A_ fd, revents); 1486 fd_event_nocheck (EV_A_ fd, revents);
884} 1487}
885 1488
886void 1489void
887ev_feed_fd_event (EV_P_ int fd, int revents) 1490ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
888{ 1491{
889 if (fd >= 0 && fd < anfdmax) 1492 if (fd >= 0 && fd < anfdmax)
890 fd_event_nc (EV_A_ fd, revents); 1493 fd_event_nocheck (EV_A_ fd, revents);
891} 1494}
892 1495
893/* make sure the external fd watch events are in-sync */ 1496/* make sure the external fd watch events are in-sync */
894/* with the kernel/libev internal state */ 1497/* with the kernel/libev internal state */
895inline_size void 1498inline_size void
896fd_reify (EV_P) 1499fd_reify (EV_P)
897{ 1500{
898 int i; 1501 int i;
899 1502
1503#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1504 for (i = 0; i < fdchangecnt; ++i)
1505 {
1506 int fd = fdchanges [i];
1507 ANFD *anfd = anfds + fd;
1508
1509 if (anfd->reify & EV__IOFDSET && anfd->head)
1510 {
1511 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1512
1513 if (handle != anfd->handle)
1514 {
1515 unsigned long arg;
1516
1517 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1518
1519 /* handle changed, but fd didn't - we need to do it in two steps */
1520 backend_modify (EV_A_ fd, anfd->events, 0);
1521 anfd->events = 0;
1522 anfd->handle = handle;
1523 }
1524 }
1525 }
1526#endif
1527
900 for (i = 0; i < fdchangecnt; ++i) 1528 for (i = 0; i < fdchangecnt; ++i)
901 { 1529 {
902 int fd = fdchanges [i]; 1530 int fd = fdchanges [i];
903 ANFD *anfd = anfds + fd; 1531 ANFD *anfd = anfds + fd;
904 ev_io *w; 1532 ev_io *w;
905 1533
906 unsigned char events = 0; 1534 unsigned char o_events = anfd->events;
1535 unsigned char o_reify = anfd->reify;
907 1536
908 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1537 anfd->reify = 0;
909 events |= (unsigned char)w->events;
910 1538
911#if EV_SELECT_IS_WINSOCKET 1539 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
912 if (events)
913 { 1540 {
914 unsigned long arg; 1541 anfd->events = 0;
915 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1542
916 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1543 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1544 anfd->events |= (unsigned char)w->events;
1545
1546 if (o_events != anfd->events)
1547 o_reify = EV__IOFDSET; /* actually |= */
917 } 1548 }
918#endif
919 1549
920 { 1550 if (o_reify & EV__IOFDSET)
921 unsigned char o_events = anfd->events;
922 unsigned char o_reify = anfd->reify;
923
924 anfd->reify = 0;
925 anfd->events = events;
926
927 if (o_events != events || o_reify & EV__IOFDSET)
928 backend_modify (EV_A_ fd, o_events, events); 1551 backend_modify (EV_A_ fd, o_events, anfd->events);
929 }
930 } 1552 }
931 1553
932 fdchangecnt = 0; 1554 fdchangecnt = 0;
933} 1555}
934 1556
… …
946 fdchanges [fdchangecnt - 1] = fd; 1568 fdchanges [fdchangecnt - 1] = fd;
947 } 1569 }
948} 1570}
949 1571
950/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1572/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
951inline_speed void 1573inline_speed void ecb_cold
952fd_kill (EV_P_ int fd) 1574fd_kill (EV_P_ int fd)
953{ 1575{
954 ev_io *w; 1576 ev_io *w;
955 1577
956 while ((w = (ev_io *)anfds [fd].head)) 1578 while ((w = (ev_io *)anfds [fd].head))
… …
958 ev_io_stop (EV_A_ w); 1580 ev_io_stop (EV_A_ w);
959 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1581 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
960 } 1582 }
961} 1583}
962 1584
963/* check whether the given fd is atcually valid, for error recovery */ 1585/* check whether the given fd is actually valid, for error recovery */
964inline_size int 1586inline_size int ecb_cold
965fd_valid (int fd) 1587fd_valid (int fd)
966{ 1588{
967#ifdef _WIN32 1589#ifdef _WIN32
968 return _get_osfhandle (fd) != -1; 1590 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
969#else 1591#else
970 return fcntl (fd, F_GETFD) != -1; 1592 return fcntl (fd, F_GETFD) != -1;
971#endif 1593#endif
972} 1594}
973 1595
974/* called on EBADF to verify fds */ 1596/* called on EBADF to verify fds */
975static void noinline 1597static void noinline ecb_cold
976fd_ebadf (EV_P) 1598fd_ebadf (EV_P)
977{ 1599{
978 int fd; 1600 int fd;
979 1601
980 for (fd = 0; fd < anfdmax; ++fd) 1602 for (fd = 0; fd < anfdmax; ++fd)
… …
982 if (!fd_valid (fd) && errno == EBADF) 1604 if (!fd_valid (fd) && errno == EBADF)
983 fd_kill (EV_A_ fd); 1605 fd_kill (EV_A_ fd);
984} 1606}
985 1607
986/* called on ENOMEM in select/poll to kill some fds and retry */ 1608/* called on ENOMEM in select/poll to kill some fds and retry */
987static void noinline 1609static void noinline ecb_cold
988fd_enomem (EV_P) 1610fd_enomem (EV_P)
989{ 1611{
990 int fd; 1612 int fd;
991 1613
992 for (fd = anfdmax; fd--; ) 1614 for (fd = anfdmax; fd--; )
… …
1010 anfds [fd].emask = 0; 1632 anfds [fd].emask = 0;
1011 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1633 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1012 } 1634 }
1013} 1635}
1014 1636
1637/* used to prepare libev internal fd's */
1638/* this is not fork-safe */
1639inline_speed void
1640fd_intern (int fd)
1641{
1642#ifdef _WIN32
1643 unsigned long arg = 1;
1644 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1645#else
1646 fcntl (fd, F_SETFD, FD_CLOEXEC);
1647 fcntl (fd, F_SETFL, O_NONBLOCK);
1648#endif
1649}
1650
1015/*****************************************************************************/ 1651/*****************************************************************************/
1016 1652
1017/* 1653/*
1018 * the heap functions want a real array index. array index 0 uis guaranteed to not 1654 * the heap functions want a real array index. array index 0 is guaranteed to not
1019 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1655 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1020 * the branching factor of the d-tree. 1656 * the branching factor of the d-tree.
1021 */ 1657 */
1022 1658
1023/* 1659/*
… …
1171 1807
1172static ANSIG signals [EV_NSIG - 1]; 1808static ANSIG signals [EV_NSIG - 1];
1173 1809
1174/*****************************************************************************/ 1810/*****************************************************************************/
1175 1811
1176/* used to prepare libev internal fd's */ 1812#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1177/* this is not fork-safe */
1178inline_speed void
1179fd_intern (int fd)
1180{
1181#ifdef _WIN32
1182 unsigned long arg = 1;
1183 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1184#else
1185 fcntl (fd, F_SETFD, FD_CLOEXEC);
1186 fcntl (fd, F_SETFL, O_NONBLOCK);
1187#endif
1188}
1189 1813
1190static void noinline 1814static void noinline ecb_cold
1191evpipe_init (EV_P) 1815evpipe_init (EV_P)
1192{ 1816{
1193 if (!ev_is_active (&pipe_w)) 1817 if (!ev_is_active (&pipe_w))
1194 { 1818 {
1195#if EV_USE_EVENTFD 1819# if EV_USE_EVENTFD
1196 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1820 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1197 if (evfd < 0 && errno == EINVAL) 1821 if (evfd < 0 && errno == EINVAL)
1198 evfd = eventfd (0, 0); 1822 evfd = eventfd (0, 0);
1199 1823
1200 if (evfd >= 0) 1824 if (evfd >= 0)
… …
1202 evpipe [0] = -1; 1826 evpipe [0] = -1;
1203 fd_intern (evfd); /* doing it twice doesn't hurt */ 1827 fd_intern (evfd); /* doing it twice doesn't hurt */
1204 ev_io_set (&pipe_w, evfd, EV_READ); 1828 ev_io_set (&pipe_w, evfd, EV_READ);
1205 } 1829 }
1206 else 1830 else
1207#endif 1831# endif
1208 { 1832 {
1209 while (pipe (evpipe)) 1833 while (pipe (evpipe))
1210 ev_syserr ("(libev) error creating signal/async pipe"); 1834 ev_syserr ("(libev) error creating signal/async pipe");
1211 1835
1212 fd_intern (evpipe [0]); 1836 fd_intern (evpipe [0]);
… …
1217 ev_io_start (EV_A_ &pipe_w); 1841 ev_io_start (EV_A_ &pipe_w);
1218 ev_unref (EV_A); /* watcher should not keep loop alive */ 1842 ev_unref (EV_A); /* watcher should not keep loop alive */
1219 } 1843 }
1220} 1844}
1221 1845
1222inline_size void 1846inline_speed void
1223evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1847evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1224{ 1848{
1225 if (!*flag) 1849 if (expect_true (*flag))
1850 return;
1851
1852 *flag = 1;
1853
1854 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1855
1856 pipe_write_skipped = 1;
1857
1858 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1859
1860 if (pipe_write_wanted)
1226 { 1861 {
1862 int old_errno;
1863
1864 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1865
1227 int old_errno = errno; /* save errno because write might clobber it */ 1866 old_errno = errno; /* save errno because write will clobber it */
1228
1229 *flag = 1;
1230 1867
1231#if EV_USE_EVENTFD 1868#if EV_USE_EVENTFD
1232 if (evfd >= 0) 1869 if (evfd >= 0)
1233 { 1870 {
1234 uint64_t counter = 1; 1871 uint64_t counter = 1;
1235 write (evfd, &counter, sizeof (uint64_t)); 1872 write (evfd, &counter, sizeof (uint64_t));
1236 } 1873 }
1237 else 1874 else
1238#endif 1875#endif
1876 {
1877 /* win32 people keep sending patches that change this write() to send() */
1878 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1879 /* so when you think this write should be a send instead, please find out */
1880 /* where your send() is from - it's definitely not the microsoft send, and */
1881 /* tell me. thank you. */
1882 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1883 /* check the ev documentation on how to use this flag */
1239 write (evpipe [1], &old_errno, 1); 1884 write (evpipe [1], &(evpipe [1]), 1);
1885 }
1240 1886
1241 errno = old_errno; 1887 errno = old_errno;
1242 } 1888 }
1243} 1889}
1244 1890
… …
1247static void 1893static void
1248pipecb (EV_P_ ev_io *iow, int revents) 1894pipecb (EV_P_ ev_io *iow, int revents)
1249{ 1895{
1250 int i; 1896 int i;
1251 1897
1898 if (revents & EV_READ)
1899 {
1252#if EV_USE_EVENTFD 1900#if EV_USE_EVENTFD
1253 if (evfd >= 0) 1901 if (evfd >= 0)
1254 { 1902 {
1255 uint64_t counter; 1903 uint64_t counter;
1256 read (evfd, &counter, sizeof (uint64_t)); 1904 read (evfd, &counter, sizeof (uint64_t));
1257 } 1905 }
1258 else 1906 else
1259#endif 1907#endif
1260 { 1908 {
1261 char dummy; 1909 char dummy;
1910 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1262 read (evpipe [0], &dummy, 1); 1911 read (evpipe [0], &dummy, 1);
1912 }
1263 } 1913 }
1264 1914
1915 pipe_write_skipped = 0;
1916
1917#if EV_SIGNAL_ENABLE
1265 if (sig_pending) 1918 if (sig_pending)
1266 { 1919 {
1267 sig_pending = 0; 1920 sig_pending = 0;
1268 1921
1269 for (i = EV_NSIG - 1; i--; ) 1922 for (i = EV_NSIG - 1; i--; )
1270 if (expect_false (signals [i].pending)) 1923 if (expect_false (signals [i].pending))
1271 ev_feed_signal_event (EV_A_ i + 1); 1924 ev_feed_signal_event (EV_A_ i + 1);
1272 } 1925 }
1926#endif
1273 1927
1274#if EV_ASYNC_ENABLE 1928#if EV_ASYNC_ENABLE
1275 if (async_pending) 1929 if (async_pending)
1276 { 1930 {
1277 async_pending = 0; 1931 async_pending = 0;
… …
1286#endif 1940#endif
1287} 1941}
1288 1942
1289/*****************************************************************************/ 1943/*****************************************************************************/
1290 1944
1945void
1946ev_feed_signal (int signum) EV_THROW
1947{
1948#if EV_MULTIPLICITY
1949 EV_P = signals [signum - 1].loop;
1950
1951 if (!EV_A)
1952 return;
1953#endif
1954
1955 if (!ev_active (&pipe_w))
1956 return;
1957
1958 signals [signum - 1].pending = 1;
1959 evpipe_write (EV_A_ &sig_pending);
1960}
1961
1291static void 1962static void
1292ev_sighandler (int signum) 1963ev_sighandler (int signum)
1293{ 1964{
1294#if EV_MULTIPLICITY
1295 EV_P = signals [signum - 1].loop;
1296#endif
1297
1298#if _WIN32 1965#ifdef _WIN32
1299 signal (signum, ev_sighandler); 1966 signal (signum, ev_sighandler);
1300#endif 1967#endif
1301 1968
1302 signals [signum - 1].pending = 1; 1969 ev_feed_signal (signum);
1303 evpipe_write (EV_A_ &sig_pending);
1304} 1970}
1305 1971
1306void noinline 1972void noinline
1307ev_feed_signal_event (EV_P_ int signum) 1973ev_feed_signal_event (EV_P_ int signum) EV_THROW
1308{ 1974{
1309 WL w; 1975 WL w;
1310 1976
1311 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1977 if (expect_false (signum <= 0 || signum > EV_NSIG))
1312 return; 1978 return;
… …
1345 break; 2011 break;
1346 } 2012 }
1347} 2013}
1348#endif 2014#endif
1349 2015
2016#endif
2017
1350/*****************************************************************************/ 2018/*****************************************************************************/
1351 2019
2020#if EV_CHILD_ENABLE
1352static WL childs [EV_PID_HASHSIZE]; 2021static WL childs [EV_PID_HASHSIZE];
1353
1354#ifndef _WIN32
1355 2022
1356static ev_signal childev; 2023static ev_signal childev;
1357 2024
1358#ifndef WIFCONTINUED 2025#ifndef WIFCONTINUED
1359# define WIFCONTINUED(status) 0 2026# define WIFCONTINUED(status) 0
… …
1364child_reap (EV_P_ int chain, int pid, int status) 2031child_reap (EV_P_ int chain, int pid, int status)
1365{ 2032{
1366 ev_child *w; 2033 ev_child *w;
1367 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2034 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1368 2035
1369 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2036 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1370 { 2037 {
1371 if ((w->pid == pid || !w->pid) 2038 if ((w->pid == pid || !w->pid)
1372 && (!traced || (w->flags & 1))) 2039 && (!traced || (w->flags & 1)))
1373 { 2040 {
1374 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2041 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1399 /* make sure we are called again until all children have been reaped */ 2066 /* make sure we are called again until all children have been reaped */
1400 /* we need to do it this way so that the callback gets called before we continue */ 2067 /* we need to do it this way so that the callback gets called before we continue */
1401 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2068 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1402 2069
1403 child_reap (EV_A_ pid, pid, status); 2070 child_reap (EV_A_ pid, pid, status);
1404 if (EV_PID_HASHSIZE > 1) 2071 if ((EV_PID_HASHSIZE) > 1)
1405 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2072 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1406} 2073}
1407 2074
1408#endif 2075#endif
1409 2076
1410/*****************************************************************************/ 2077/*****************************************************************************/
1411 2078
2079#if EV_USE_IOCP
2080# include "ev_iocp.c"
2081#endif
1412#if EV_USE_PORT 2082#if EV_USE_PORT
1413# include "ev_port.c" 2083# include "ev_port.c"
1414#endif 2084#endif
1415#if EV_USE_KQUEUE 2085#if EV_USE_KQUEUE
1416# include "ev_kqueue.c" 2086# include "ev_kqueue.c"
… …
1423#endif 2093#endif
1424#if EV_USE_SELECT 2094#if EV_USE_SELECT
1425# include "ev_select.c" 2095# include "ev_select.c"
1426#endif 2096#endif
1427 2097
1428int 2098int ecb_cold
1429ev_version_major (void) 2099ev_version_major (void) EV_THROW
1430{ 2100{
1431 return EV_VERSION_MAJOR; 2101 return EV_VERSION_MAJOR;
1432} 2102}
1433 2103
1434int 2104int ecb_cold
1435ev_version_minor (void) 2105ev_version_minor (void) EV_THROW
1436{ 2106{
1437 return EV_VERSION_MINOR; 2107 return EV_VERSION_MINOR;
1438} 2108}
1439 2109
1440/* return true if we are running with elevated privileges and should ignore env variables */ 2110/* return true if we are running with elevated privileges and should ignore env variables */
1441int inline_size 2111int inline_size ecb_cold
1442enable_secure (void) 2112enable_secure (void)
1443{ 2113{
1444#ifdef _WIN32 2114#ifdef _WIN32
1445 return 0; 2115 return 0;
1446#else 2116#else
1447 return getuid () != geteuid () 2117 return getuid () != geteuid ()
1448 || getgid () != getegid (); 2118 || getgid () != getegid ();
1449#endif 2119#endif
1450} 2120}
1451 2121
1452unsigned int 2122unsigned int ecb_cold
1453ev_supported_backends (void) 2123ev_supported_backends (void) EV_THROW
1454{ 2124{
1455 unsigned int flags = 0; 2125 unsigned int flags = 0;
1456 2126
1457 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2127 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1458 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2128 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1461 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2131 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1462 2132
1463 return flags; 2133 return flags;
1464} 2134}
1465 2135
1466unsigned int 2136unsigned int ecb_cold
1467ev_recommended_backends (void) 2137ev_recommended_backends (void) EV_THROW
1468{ 2138{
1469 unsigned int flags = ev_supported_backends (); 2139 unsigned int flags = ev_supported_backends ();
1470 2140
1471#ifndef __NetBSD__ 2141#ifndef __NetBSD__
1472 /* kqueue is borked on everything but netbsd apparently */ 2142 /* kqueue is borked on everything but netbsd apparently */
… …
1476#ifdef __APPLE__ 2146#ifdef __APPLE__
1477 /* only select works correctly on that "unix-certified" platform */ 2147 /* only select works correctly on that "unix-certified" platform */
1478 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2148 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1479 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2149 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1480#endif 2150#endif
2151#ifdef __FreeBSD__
2152 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2153#endif
1481 2154
1482 return flags; 2155 return flags;
1483} 2156}
1484 2157
2158unsigned int ecb_cold
2159ev_embeddable_backends (void) EV_THROW
2160{
2161 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2162
2163 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2164 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2165 flags &= ~EVBACKEND_EPOLL;
2166
2167 return flags;
2168}
2169
1485unsigned int 2170unsigned int
1486ev_embeddable_backends (void) 2171ev_backend (EV_P) EV_THROW
1487{ 2172{
1488 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2173 return backend;
1489
1490 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1491 /* please fix it and tell me how to detect the fix */
1492 flags &= ~EVBACKEND_EPOLL;
1493
1494 return flags;
1495} 2174}
1496 2175
2176#if EV_FEATURE_API
1497unsigned int 2177unsigned int
1498ev_backend (EV_P) 2178ev_iteration (EV_P) EV_THROW
1499{ 2179{
1500 return backend; 2180 return loop_count;
1501} 2181}
1502 2182
1503#if EV_MINIMAL < 2
1504unsigned int 2183unsigned int
1505ev_loop_count (EV_P) 2184ev_depth (EV_P) EV_THROW
1506{
1507 return loop_count;
1508}
1509
1510unsigned int
1511ev_loop_depth (EV_P)
1512{ 2185{
1513 return loop_depth; 2186 return loop_depth;
1514} 2187}
1515 2188
1516void 2189void
1517ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2190ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1518{ 2191{
1519 io_blocktime = interval; 2192 io_blocktime = interval;
1520} 2193}
1521 2194
1522void 2195void
1523ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2196ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1524{ 2197{
1525 timeout_blocktime = interval; 2198 timeout_blocktime = interval;
1526} 2199}
1527 2200
1528void 2201void
1529ev_set_userdata (EV_P_ void *data) 2202ev_set_userdata (EV_P_ void *data) EV_THROW
1530{ 2203{
1531 userdata = data; 2204 userdata = data;
1532} 2205}
1533 2206
1534void * 2207void *
1535ev_userdata (EV_P) 2208ev_userdata (EV_P) EV_THROW
1536{ 2209{
1537 return userdata; 2210 return userdata;
1538} 2211}
1539 2212
2213void
1540void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2214ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1541{ 2215{
1542 invoke_cb = invoke_pending_cb; 2216 invoke_cb = invoke_pending_cb;
1543} 2217}
1544 2218
2219void
1545void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2220ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) EV_THROW
1546{ 2221{
1547 release_cb = release; 2222 release_cb = release;
1548 acquire_cb = acquire; 2223 acquire_cb = acquire;
1549} 2224}
1550#endif 2225#endif
1551 2226
1552/* initialise a loop structure, must be zero-initialised */ 2227/* initialise a loop structure, must be zero-initialised */
1553static void noinline 2228static void noinline ecb_cold
1554loop_init (EV_P_ unsigned int flags) 2229loop_init (EV_P_ unsigned int flags) EV_THROW
1555{ 2230{
1556 if (!backend) 2231 if (!backend)
1557 { 2232 {
2233 origflags = flags;
2234
1558#if EV_USE_REALTIME 2235#if EV_USE_REALTIME
1559 if (!have_realtime) 2236 if (!have_realtime)
1560 { 2237 {
1561 struct timespec ts; 2238 struct timespec ts;
1562 2239
… …
1584 if (!(flags & EVFLAG_NOENV) 2261 if (!(flags & EVFLAG_NOENV)
1585 && !enable_secure () 2262 && !enable_secure ()
1586 && getenv ("LIBEV_FLAGS")) 2263 && getenv ("LIBEV_FLAGS"))
1587 flags = atoi (getenv ("LIBEV_FLAGS")); 2264 flags = atoi (getenv ("LIBEV_FLAGS"));
1588 2265
1589 ev_rt_now = ev_time (); 2266 ev_rt_now = ev_time ();
1590 mn_now = get_clock (); 2267 mn_now = get_clock ();
1591 now_floor = mn_now; 2268 now_floor = mn_now;
1592 rtmn_diff = ev_rt_now - mn_now; 2269 rtmn_diff = ev_rt_now - mn_now;
1593#if EV_MINIMAL < 2 2270#if EV_FEATURE_API
1594 invoke_cb = ev_invoke_pending; 2271 invoke_cb = ev_invoke_pending;
1595#endif 2272#endif
1596 2273
1597 io_blocktime = 0.; 2274 io_blocktime = 0.;
1598 timeout_blocktime = 0.; 2275 timeout_blocktime = 0.;
1599 backend = 0; 2276 backend = 0;
1600 backend_fd = -1; 2277 backend_fd = -1;
1601 sig_pending = 0; 2278 sig_pending = 0;
1602#if EV_ASYNC_ENABLE 2279#if EV_ASYNC_ENABLE
1603 async_pending = 0; 2280 async_pending = 0;
1604#endif 2281#endif
2282 pipe_write_skipped = 0;
2283 pipe_write_wanted = 0;
1605#if EV_USE_INOTIFY 2284#if EV_USE_INOTIFY
1606 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2285 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1607#endif 2286#endif
1608#if EV_USE_SIGNALFD 2287#if EV_USE_SIGNALFD
1609 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; 2288 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1610#endif 2289#endif
1611 2290
1612 if (!(flags & 0x0000ffffU)) 2291 if (!(flags & EVBACKEND_MASK))
1613 flags |= ev_recommended_backends (); 2292 flags |= ev_recommended_backends ();
1614 2293
2294#if EV_USE_IOCP
2295 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2296#endif
1615#if EV_USE_PORT 2297#if EV_USE_PORT
1616 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2298 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1617#endif 2299#endif
1618#if EV_USE_KQUEUE 2300#if EV_USE_KQUEUE
1619 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2301 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1628 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2310 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1629#endif 2311#endif
1630 2312
1631 ev_prepare_init (&pending_w, pendingcb); 2313 ev_prepare_init (&pending_w, pendingcb);
1632 2314
2315#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1633 ev_init (&pipe_w, pipecb); 2316 ev_init (&pipe_w, pipecb);
1634 ev_set_priority (&pipe_w, EV_MAXPRI); 2317 ev_set_priority (&pipe_w, EV_MAXPRI);
2318#endif
1635 } 2319 }
1636} 2320}
1637 2321
1638/* free up a loop structure */ 2322/* free up a loop structure */
1639static void noinline 2323void ecb_cold
1640loop_destroy (EV_P) 2324ev_loop_destroy (EV_P) EV_THROW
1641{ 2325{
1642 int i; 2326 int i;
2327
2328#if EV_MULTIPLICITY
2329 /* mimic free (0) */
2330 if (!EV_A)
2331 return;
2332#endif
2333
2334#if EV_CLEANUP_ENABLE
2335 /* queue cleanup watchers (and execute them) */
2336 if (expect_false (cleanupcnt))
2337 {
2338 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2339 EV_INVOKE_PENDING;
2340 }
2341#endif
2342
2343#if EV_CHILD_ENABLE
2344 if (ev_is_active (&childev))
2345 {
2346 ev_ref (EV_A); /* child watcher */
2347 ev_signal_stop (EV_A_ &childev);
2348 }
2349#endif
1643 2350
1644 if (ev_is_active (&pipe_w)) 2351 if (ev_is_active (&pipe_w))
1645 { 2352 {
1646 /*ev_ref (EV_A);*/ 2353 /*ev_ref (EV_A);*/
1647 /*ev_io_stop (EV_A_ &pipe_w);*/ 2354 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1658 } 2365 }
1659 } 2366 }
1660 2367
1661#if EV_USE_SIGNALFD 2368#if EV_USE_SIGNALFD
1662 if (ev_is_active (&sigfd_w)) 2369 if (ev_is_active (&sigfd_w))
1663 {
1664 /*ev_ref (EV_A);*/
1665 /*ev_io_stop (EV_A_ &sigfd_w);*/
1666
1667 close (sigfd); 2370 close (sigfd);
1668 }
1669#endif 2371#endif
1670 2372
1671#if EV_USE_INOTIFY 2373#if EV_USE_INOTIFY
1672 if (fs_fd >= 0) 2374 if (fs_fd >= 0)
1673 close (fs_fd); 2375 close (fs_fd);
1674#endif 2376#endif
1675 2377
1676 if (backend_fd >= 0) 2378 if (backend_fd >= 0)
1677 close (backend_fd); 2379 close (backend_fd);
1678 2380
2381#if EV_USE_IOCP
2382 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2383#endif
1679#if EV_USE_PORT 2384#if EV_USE_PORT
1680 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2385 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1681#endif 2386#endif
1682#if EV_USE_KQUEUE 2387#if EV_USE_KQUEUE
1683 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2388 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1710 array_free (periodic, EMPTY); 2415 array_free (periodic, EMPTY);
1711#endif 2416#endif
1712#if EV_FORK_ENABLE 2417#if EV_FORK_ENABLE
1713 array_free (fork, EMPTY); 2418 array_free (fork, EMPTY);
1714#endif 2419#endif
2420#if EV_CLEANUP_ENABLE
2421 array_free (cleanup, EMPTY);
2422#endif
1715 array_free (prepare, EMPTY); 2423 array_free (prepare, EMPTY);
1716 array_free (check, EMPTY); 2424 array_free (check, EMPTY);
1717#if EV_ASYNC_ENABLE 2425#if EV_ASYNC_ENABLE
1718 array_free (async, EMPTY); 2426 array_free (async, EMPTY);
1719#endif 2427#endif
1720 2428
1721 backend = 0; 2429 backend = 0;
2430
2431#if EV_MULTIPLICITY
2432 if (ev_is_default_loop (EV_A))
2433#endif
2434 ev_default_loop_ptr = 0;
2435#if EV_MULTIPLICITY
2436 else
2437 ev_free (EV_A);
2438#endif
1722} 2439}
1723 2440
1724#if EV_USE_INOTIFY 2441#if EV_USE_INOTIFY
1725inline_size void infy_fork (EV_P); 2442inline_size void infy_fork (EV_P);
1726#endif 2443#endif
… …
1741 infy_fork (EV_A); 2458 infy_fork (EV_A);
1742#endif 2459#endif
1743 2460
1744 if (ev_is_active (&pipe_w)) 2461 if (ev_is_active (&pipe_w))
1745 { 2462 {
1746 /* this "locks" the handlers against writing to the pipe */ 2463 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1747 /* while we modify the fd vars */
1748 sig_pending = 1;
1749#if EV_ASYNC_ENABLE
1750 async_pending = 1;
1751#endif
1752 2464
1753 ev_ref (EV_A); 2465 ev_ref (EV_A);
1754 ev_io_stop (EV_A_ &pipe_w); 2466 ev_io_stop (EV_A_ &pipe_w);
1755 2467
1756#if EV_USE_EVENTFD 2468#if EV_USE_EVENTFD
… …
1762 { 2474 {
1763 EV_WIN32_CLOSE_FD (evpipe [0]); 2475 EV_WIN32_CLOSE_FD (evpipe [0]);
1764 EV_WIN32_CLOSE_FD (evpipe [1]); 2476 EV_WIN32_CLOSE_FD (evpipe [1]);
1765 } 2477 }
1766 2478
2479#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1767 evpipe_init (EV_A); 2480 evpipe_init (EV_A);
1768 /* now iterate over everything, in case we missed something */ 2481 /* now iterate over everything, in case we missed something */
1769 pipecb (EV_A_ &pipe_w, EV_READ); 2482 pipecb (EV_A_ &pipe_w, EV_READ);
2483#endif
1770 } 2484 }
1771 2485
1772 postfork = 0; 2486 postfork = 0;
1773} 2487}
1774 2488
1775#if EV_MULTIPLICITY 2489#if EV_MULTIPLICITY
1776 2490
1777struct ev_loop * 2491struct ev_loop * ecb_cold
1778ev_loop_new (unsigned int flags) 2492ev_loop_new (unsigned int flags) EV_THROW
1779{ 2493{
1780 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2494 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1781 2495
1782 memset (EV_A, 0, sizeof (struct ev_loop)); 2496 memset (EV_A, 0, sizeof (struct ev_loop));
1783 loop_init (EV_A_ flags); 2497 loop_init (EV_A_ flags);
1784 2498
1785 if (ev_backend (EV_A)) 2499 if (ev_backend (EV_A))
1786 return EV_A; 2500 return EV_A;
1787 2501
2502 ev_free (EV_A);
1788 return 0; 2503 return 0;
1789} 2504}
1790 2505
1791void
1792ev_loop_destroy (EV_P)
1793{
1794 loop_destroy (EV_A);
1795 ev_free (loop);
1796}
1797
1798void
1799ev_loop_fork (EV_P)
1800{
1801 postfork = 1; /* must be in line with ev_default_fork */
1802}
1803#endif /* multiplicity */ 2506#endif /* multiplicity */
1804 2507
1805#if EV_VERIFY 2508#if EV_VERIFY
1806static void noinline 2509static void noinline ecb_cold
1807verify_watcher (EV_P_ W w) 2510verify_watcher (EV_P_ W w)
1808{ 2511{
1809 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2512 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1810 2513
1811 if (w->pending) 2514 if (w->pending)
1812 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2515 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1813} 2516}
1814 2517
1815static void noinline 2518static void noinline ecb_cold
1816verify_heap (EV_P_ ANHE *heap, int N) 2519verify_heap (EV_P_ ANHE *heap, int N)
1817{ 2520{
1818 int i; 2521 int i;
1819 2522
1820 for (i = HEAP0; i < N + HEAP0; ++i) 2523 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1825 2528
1826 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2529 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1827 } 2530 }
1828} 2531}
1829 2532
1830static void noinline 2533static void noinline ecb_cold
1831array_verify (EV_P_ W *ws, int cnt) 2534array_verify (EV_P_ W *ws, int cnt)
1832{ 2535{
1833 while (cnt--) 2536 while (cnt--)
1834 { 2537 {
1835 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2538 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1836 verify_watcher (EV_A_ ws [cnt]); 2539 verify_watcher (EV_A_ ws [cnt]);
1837 } 2540 }
1838} 2541}
1839#endif 2542#endif
1840 2543
1841#if EV_MINIMAL < 2 2544#if EV_FEATURE_API
1842void 2545void ecb_cold
1843ev_loop_verify (EV_P) 2546ev_verify (EV_P) EV_THROW
1844{ 2547{
1845#if EV_VERIFY 2548#if EV_VERIFY
1846 int i; 2549 int i;
1847 WL w; 2550 WL w;
1848 2551
… …
1882#if EV_FORK_ENABLE 2585#if EV_FORK_ENABLE
1883 assert (forkmax >= forkcnt); 2586 assert (forkmax >= forkcnt);
1884 array_verify (EV_A_ (W *)forks, forkcnt); 2587 array_verify (EV_A_ (W *)forks, forkcnt);
1885#endif 2588#endif
1886 2589
2590#if EV_CLEANUP_ENABLE
2591 assert (cleanupmax >= cleanupcnt);
2592 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2593#endif
2594
1887#if EV_ASYNC_ENABLE 2595#if EV_ASYNC_ENABLE
1888 assert (asyncmax >= asynccnt); 2596 assert (asyncmax >= asynccnt);
1889 array_verify (EV_A_ (W *)asyncs, asynccnt); 2597 array_verify (EV_A_ (W *)asyncs, asynccnt);
1890#endif 2598#endif
1891 2599
2600#if EV_PREPARE_ENABLE
1892 assert (preparemax >= preparecnt); 2601 assert (preparemax >= preparecnt);
1893 array_verify (EV_A_ (W *)prepares, preparecnt); 2602 array_verify (EV_A_ (W *)prepares, preparecnt);
2603#endif
1894 2604
2605#if EV_CHECK_ENABLE
1895 assert (checkmax >= checkcnt); 2606 assert (checkmax >= checkcnt);
1896 array_verify (EV_A_ (W *)checks, checkcnt); 2607 array_verify (EV_A_ (W *)checks, checkcnt);
2608#endif
1897 2609
1898# if 0 2610# if 0
2611#if EV_CHILD_ENABLE
1899 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2612 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1900 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2613 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2614#endif
1901# endif 2615# endif
1902#endif 2616#endif
1903} 2617}
1904#endif 2618#endif
1905 2619
1906#if EV_MULTIPLICITY 2620#if EV_MULTIPLICITY
1907struct ev_loop * 2621struct ev_loop * ecb_cold
1908ev_default_loop_init (unsigned int flags)
1909#else 2622#else
1910int 2623int
2624#endif
1911ev_default_loop (unsigned int flags) 2625ev_default_loop (unsigned int flags) EV_THROW
1912#endif
1913{ 2626{
1914 if (!ev_default_loop_ptr) 2627 if (!ev_default_loop_ptr)
1915 { 2628 {
1916#if EV_MULTIPLICITY 2629#if EV_MULTIPLICITY
1917 EV_P = ev_default_loop_ptr = &default_loop_struct; 2630 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1921 2634
1922 loop_init (EV_A_ flags); 2635 loop_init (EV_A_ flags);
1923 2636
1924 if (ev_backend (EV_A)) 2637 if (ev_backend (EV_A))
1925 { 2638 {
1926#ifndef _WIN32 2639#if EV_CHILD_ENABLE
1927 ev_signal_init (&childev, childcb, SIGCHLD); 2640 ev_signal_init (&childev, childcb, SIGCHLD);
1928 ev_set_priority (&childev, EV_MAXPRI); 2641 ev_set_priority (&childev, EV_MAXPRI);
1929 ev_signal_start (EV_A_ &childev); 2642 ev_signal_start (EV_A_ &childev);
1930 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2643 ev_unref (EV_A); /* child watcher should not keep loop alive */
1931#endif 2644#endif
… …
1936 2649
1937 return ev_default_loop_ptr; 2650 return ev_default_loop_ptr;
1938} 2651}
1939 2652
1940void 2653void
1941ev_default_destroy (void) 2654ev_loop_fork (EV_P) EV_THROW
1942{ 2655{
1943#if EV_MULTIPLICITY
1944 EV_P = ev_default_loop_ptr;
1945#endif
1946
1947 ev_default_loop_ptr = 0;
1948
1949#ifndef _WIN32
1950 ev_ref (EV_A); /* child watcher */
1951 ev_signal_stop (EV_A_ &childev);
1952#endif
1953
1954 loop_destroy (EV_A);
1955}
1956
1957void
1958ev_default_fork (void)
1959{
1960#if EV_MULTIPLICITY
1961 EV_P = ev_default_loop_ptr;
1962#endif
1963
1964 postfork = 1; /* must be in line with ev_loop_fork */ 2656 postfork = 1; /* must be in line with ev_default_fork */
1965} 2657}
1966 2658
1967/*****************************************************************************/ 2659/*****************************************************************************/
1968 2660
1969void 2661void
… …
1971{ 2663{
1972 EV_CB_INVOKE ((W)w, revents); 2664 EV_CB_INVOKE ((W)w, revents);
1973} 2665}
1974 2666
1975unsigned int 2667unsigned int
1976ev_pending_count (EV_P) 2668ev_pending_count (EV_P) EV_THROW
1977{ 2669{
1978 int pri; 2670 int pri;
1979 unsigned int count = 0; 2671 unsigned int count = 0;
1980 2672
1981 for (pri = NUMPRI; pri--; ) 2673 for (pri = NUMPRI; pri--; )
… …
1991 2683
1992 for (pri = NUMPRI; pri--; ) 2684 for (pri = NUMPRI; pri--; )
1993 while (pendingcnt [pri]) 2685 while (pendingcnt [pri])
1994 { 2686 {
1995 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2687 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1996
1997 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1998 /* ^ this is no longer true, as pending_w could be here */
1999 2688
2000 p->w->pending = 0; 2689 p->w->pending = 0;
2001 EV_CB_INVOKE (p->w, p->events); 2690 EV_CB_INVOKE (p->w, p->events);
2002 EV_FREQUENT_CHECK; 2691 EV_FREQUENT_CHECK;
2003 } 2692 }
… …
2060 EV_FREQUENT_CHECK; 2749 EV_FREQUENT_CHECK;
2061 feed_reverse (EV_A_ (W)w); 2750 feed_reverse (EV_A_ (W)w);
2062 } 2751 }
2063 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2752 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2064 2753
2065 feed_reverse_done (EV_A_ EV_TIMEOUT); 2754 feed_reverse_done (EV_A_ EV_TIMER);
2066 } 2755 }
2067} 2756}
2068 2757
2069#if EV_PERIODIC_ENABLE 2758#if EV_PERIODIC_ENABLE
2759
2760static void noinline
2761periodic_recalc (EV_P_ ev_periodic *w)
2762{
2763 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2764 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2765
2766 /* the above almost always errs on the low side */
2767 while (at <= ev_rt_now)
2768 {
2769 ev_tstamp nat = at + w->interval;
2770
2771 /* when resolution fails us, we use ev_rt_now */
2772 if (expect_false (nat == at))
2773 {
2774 at = ev_rt_now;
2775 break;
2776 }
2777
2778 at = nat;
2779 }
2780
2781 ev_at (w) = at;
2782}
2783
2070/* make periodics pending */ 2784/* make periodics pending */
2071inline_size void 2785inline_size void
2072periodics_reify (EV_P) 2786periodics_reify (EV_P)
2073{ 2787{
2074 EV_FREQUENT_CHECK; 2788 EV_FREQUENT_CHECK;
… …
2093 ANHE_at_cache (periodics [HEAP0]); 2807 ANHE_at_cache (periodics [HEAP0]);
2094 downheap (periodics, periodiccnt, HEAP0); 2808 downheap (periodics, periodiccnt, HEAP0);
2095 } 2809 }
2096 else if (w->interval) 2810 else if (w->interval)
2097 { 2811 {
2098 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2812 periodic_recalc (EV_A_ w);
2099 /* if next trigger time is not sufficiently in the future, put it there */
2100 /* this might happen because of floating point inexactness */
2101 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2102 {
2103 ev_at (w) += w->interval;
2104
2105 /* if interval is unreasonably low we might still have a time in the past */
2106 /* so correct this. this will make the periodic very inexact, but the user */
2107 /* has effectively asked to get triggered more often than possible */
2108 if (ev_at (w) < ev_rt_now)
2109 ev_at (w) = ev_rt_now;
2110 }
2111
2112 ANHE_at_cache (periodics [HEAP0]); 2813 ANHE_at_cache (periodics [HEAP0]);
2113 downheap (periodics, periodiccnt, HEAP0); 2814 downheap (periodics, periodiccnt, HEAP0);
2114 } 2815 }
2115 else 2816 else
2116 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2817 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2123 feed_reverse_done (EV_A_ EV_PERIODIC); 2824 feed_reverse_done (EV_A_ EV_PERIODIC);
2124 } 2825 }
2125} 2826}
2126 2827
2127/* simply recalculate all periodics */ 2828/* simply recalculate all periodics */
2128/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2829/* TODO: maybe ensure that at least one event happens when jumping forward? */
2129static void noinline 2830static void noinline ecb_cold
2130periodics_reschedule (EV_P) 2831periodics_reschedule (EV_P)
2131{ 2832{
2132 int i; 2833 int i;
2133 2834
2134 /* adjust periodics after time jump */ 2835 /* adjust periodics after time jump */
… …
2137 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2838 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2138 2839
2139 if (w->reschedule_cb) 2840 if (w->reschedule_cb)
2140 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2841 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2141 else if (w->interval) 2842 else if (w->interval)
2142 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2843 periodic_recalc (EV_A_ w);
2143 2844
2144 ANHE_at_cache (periodics [i]); 2845 ANHE_at_cache (periodics [i]);
2145 } 2846 }
2146 2847
2147 reheap (periodics, periodiccnt); 2848 reheap (periodics, periodiccnt);
2148} 2849}
2149#endif 2850#endif
2150 2851
2151/* adjust all timers by a given offset */ 2852/* adjust all timers by a given offset */
2152static void noinline 2853static void noinline ecb_cold
2153timers_reschedule (EV_P_ ev_tstamp adjust) 2854timers_reschedule (EV_P_ ev_tstamp adjust)
2154{ 2855{
2155 int i; 2856 int i;
2156 2857
2157 for (i = 0; i < timercnt; ++i) 2858 for (i = 0; i < timercnt; ++i)
… …
2161 ANHE_at_cache (*he); 2862 ANHE_at_cache (*he);
2162 } 2863 }
2163} 2864}
2164 2865
2165/* fetch new monotonic and realtime times from the kernel */ 2866/* fetch new monotonic and realtime times from the kernel */
2166/* also detetc if there was a timejump, and act accordingly */ 2867/* also detect if there was a timejump, and act accordingly */
2167inline_speed void 2868inline_speed void
2168time_update (EV_P_ ev_tstamp max_block) 2869time_update (EV_P_ ev_tstamp max_block)
2169{ 2870{
2170#if EV_USE_MONOTONIC 2871#if EV_USE_MONOTONIC
2171 if (expect_true (have_monotonic)) 2872 if (expect_true (have_monotonic))
… …
2194 * doesn't hurt either as we only do this on time-jumps or 2895 * doesn't hurt either as we only do this on time-jumps or
2195 * in the unlikely event of having been preempted here. 2896 * in the unlikely event of having been preempted here.
2196 */ 2897 */
2197 for (i = 4; --i; ) 2898 for (i = 4; --i; )
2198 { 2899 {
2900 ev_tstamp diff;
2199 rtmn_diff = ev_rt_now - mn_now; 2901 rtmn_diff = ev_rt_now - mn_now;
2200 2902
2903 diff = odiff - rtmn_diff;
2904
2201 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2905 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2202 return; /* all is well */ 2906 return; /* all is well */
2203 2907
2204 ev_rt_now = ev_time (); 2908 ev_rt_now = ev_time ();
2205 mn_now = get_clock (); 2909 mn_now = get_clock ();
2206 now_floor = mn_now; 2910 now_floor = mn_now;
… …
2228 2932
2229 mn_now = ev_rt_now; 2933 mn_now = ev_rt_now;
2230 } 2934 }
2231} 2935}
2232 2936
2233void 2937int
2234ev_loop (EV_P_ int flags) 2938ev_run (EV_P_ int flags)
2235{ 2939{
2236#if EV_MINIMAL < 2 2940#if EV_FEATURE_API
2237 ++loop_depth; 2941 ++loop_depth;
2238#endif 2942#endif
2239 2943
2240 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2944 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2241 2945
2242 loop_done = EVUNLOOP_CANCEL; 2946 loop_done = EVBREAK_CANCEL;
2243 2947
2244 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2948 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2245 2949
2246 do 2950 do
2247 { 2951 {
2248#if EV_VERIFY >= 2 2952#if EV_VERIFY >= 2
2249 ev_loop_verify (EV_A); 2953 ev_verify (EV_A);
2250#endif 2954#endif
2251 2955
2252#ifndef _WIN32 2956#ifndef _WIN32
2253 if (expect_false (curpid)) /* penalise the forking check even more */ 2957 if (expect_false (curpid)) /* penalise the forking check even more */
2254 if (expect_false (getpid () != curpid)) 2958 if (expect_false (getpid () != curpid))
… …
2266 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2970 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2267 EV_INVOKE_PENDING; 2971 EV_INVOKE_PENDING;
2268 } 2972 }
2269#endif 2973#endif
2270 2974
2975#if EV_PREPARE_ENABLE
2271 /* queue prepare watchers (and execute them) */ 2976 /* queue prepare watchers (and execute them) */
2272 if (expect_false (preparecnt)) 2977 if (expect_false (preparecnt))
2273 { 2978 {
2274 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2979 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2275 EV_INVOKE_PENDING; 2980 EV_INVOKE_PENDING;
2276 } 2981 }
2982#endif
2277 2983
2278 if (expect_false (loop_done)) 2984 if (expect_false (loop_done))
2279 break; 2985 break;
2280 2986
2281 /* we might have forked, so reify kernel state if necessary */ 2987 /* we might have forked, so reify kernel state if necessary */
… …
2288 /* calculate blocking time */ 2994 /* calculate blocking time */
2289 { 2995 {
2290 ev_tstamp waittime = 0.; 2996 ev_tstamp waittime = 0.;
2291 ev_tstamp sleeptime = 0.; 2997 ev_tstamp sleeptime = 0.;
2292 2998
2999 /* remember old timestamp for io_blocktime calculation */
3000 ev_tstamp prev_mn_now = mn_now;
3001
3002 /* update time to cancel out callback processing overhead */
3003 time_update (EV_A_ 1e100);
3004
3005 /* from now on, we want a pipe-wake-up */
3006 pipe_write_wanted = 1;
3007
3008 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3009
2293 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3010 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2294 { 3011 {
2295 /* remember old timestamp for io_blocktime calculation */
2296 ev_tstamp prev_mn_now = mn_now;
2297
2298 /* update time to cancel out callback processing overhead */
2299 time_update (EV_A_ 1e100);
2300
2301 waittime = MAX_BLOCKTIME; 3012 waittime = MAX_BLOCKTIME;
2302 3013
2303 if (timercnt) 3014 if (timercnt)
2304 { 3015 {
2305 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3016 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2306 if (waittime > to) waittime = to; 3017 if (waittime > to) waittime = to;
2307 } 3018 }
2308 3019
2309#if EV_PERIODIC_ENABLE 3020#if EV_PERIODIC_ENABLE
2310 if (periodiccnt) 3021 if (periodiccnt)
2311 { 3022 {
2312 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3023 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2313 if (waittime > to) waittime = to; 3024 if (waittime > to) waittime = to;
2314 } 3025 }
2315#endif 3026#endif
2316 3027
2317 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3028 /* don't let timeouts decrease the waittime below timeout_blocktime */
2318 if (expect_false (waittime < timeout_blocktime)) 3029 if (expect_false (waittime < timeout_blocktime))
2319 waittime = timeout_blocktime; 3030 waittime = timeout_blocktime;
3031
3032 /* at this point, we NEED to wait, so we have to ensure */
3033 /* to pass a minimum nonzero value to the backend */
3034 if (expect_false (waittime < backend_mintime))
3035 waittime = backend_mintime;
2320 3036
2321 /* extra check because io_blocktime is commonly 0 */ 3037 /* extra check because io_blocktime is commonly 0 */
2322 if (expect_false (io_blocktime)) 3038 if (expect_false (io_blocktime))
2323 { 3039 {
2324 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3040 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2325 3041
2326 if (sleeptime > waittime - backend_fudge) 3042 if (sleeptime > waittime - backend_mintime)
2327 sleeptime = waittime - backend_fudge; 3043 sleeptime = waittime - backend_mintime;
2328 3044
2329 if (expect_true (sleeptime > 0.)) 3045 if (expect_true (sleeptime > 0.))
2330 { 3046 {
2331 ev_sleep (sleeptime); 3047 ev_sleep (sleeptime);
2332 waittime -= sleeptime; 3048 waittime -= sleeptime;
2333 } 3049 }
2334 } 3050 }
2335 } 3051 }
2336 3052
2337#if EV_MINIMAL < 2 3053#if EV_FEATURE_API
2338 ++loop_count; 3054 ++loop_count;
2339#endif 3055#endif
2340 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3056 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2341 backend_poll (EV_A_ waittime); 3057 backend_poll (EV_A_ waittime);
2342 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3058 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3059
3060 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3061
3062 if (pipe_write_skipped)
3063 {
3064 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3065 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3066 }
3067
2343 3068
2344 /* update ev_rt_now, do magic */ 3069 /* update ev_rt_now, do magic */
2345 time_update (EV_A_ waittime + sleeptime); 3070 time_update (EV_A_ waittime + sleeptime);
2346 } 3071 }
2347 3072
… …
2354#if EV_IDLE_ENABLE 3079#if EV_IDLE_ENABLE
2355 /* queue idle watchers unless other events are pending */ 3080 /* queue idle watchers unless other events are pending */
2356 idle_reify (EV_A); 3081 idle_reify (EV_A);
2357#endif 3082#endif
2358 3083
3084#if EV_CHECK_ENABLE
2359 /* queue check watchers, to be executed first */ 3085 /* queue check watchers, to be executed first */
2360 if (expect_false (checkcnt)) 3086 if (expect_false (checkcnt))
2361 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3087 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3088#endif
2362 3089
2363 EV_INVOKE_PENDING; 3090 EV_INVOKE_PENDING;
2364 } 3091 }
2365 while (expect_true ( 3092 while (expect_true (
2366 activecnt 3093 activecnt
2367 && !loop_done 3094 && !loop_done
2368 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3095 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2369 )); 3096 ));
2370 3097
2371 if (loop_done == EVUNLOOP_ONE) 3098 if (loop_done == EVBREAK_ONE)
2372 loop_done = EVUNLOOP_CANCEL; 3099 loop_done = EVBREAK_CANCEL;
2373 3100
2374#if EV_MINIMAL < 2 3101#if EV_FEATURE_API
2375 --loop_depth; 3102 --loop_depth;
2376#endif 3103#endif
3104
3105 return activecnt;
2377} 3106}
2378 3107
2379void 3108void
2380ev_unloop (EV_P_ int how) 3109ev_break (EV_P_ int how) EV_THROW
2381{ 3110{
2382 loop_done = how; 3111 loop_done = how;
2383} 3112}
2384 3113
2385void 3114void
2386ev_ref (EV_P) 3115ev_ref (EV_P) EV_THROW
2387{ 3116{
2388 ++activecnt; 3117 ++activecnt;
2389} 3118}
2390 3119
2391void 3120void
2392ev_unref (EV_P) 3121ev_unref (EV_P) EV_THROW
2393{ 3122{
2394 --activecnt; 3123 --activecnt;
2395} 3124}
2396 3125
2397void 3126void
2398ev_now_update (EV_P) 3127ev_now_update (EV_P) EV_THROW
2399{ 3128{
2400 time_update (EV_A_ 1e100); 3129 time_update (EV_A_ 1e100);
2401} 3130}
2402 3131
2403void 3132void
2404ev_suspend (EV_P) 3133ev_suspend (EV_P) EV_THROW
2405{ 3134{
2406 ev_now_update (EV_A); 3135 ev_now_update (EV_A);
2407} 3136}
2408 3137
2409void 3138void
2410ev_resume (EV_P) 3139ev_resume (EV_P) EV_THROW
2411{ 3140{
2412 ev_tstamp mn_prev = mn_now; 3141 ev_tstamp mn_prev = mn_now;
2413 3142
2414 ev_now_update (EV_A); 3143 ev_now_update (EV_A);
2415 timers_reschedule (EV_A_ mn_now - mn_prev); 3144 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2454 w->pending = 0; 3183 w->pending = 0;
2455 } 3184 }
2456} 3185}
2457 3186
2458int 3187int
2459ev_clear_pending (EV_P_ void *w) 3188ev_clear_pending (EV_P_ void *w) EV_THROW
2460{ 3189{
2461 W w_ = (W)w; 3190 W w_ = (W)w;
2462 int pending = w_->pending; 3191 int pending = w_->pending;
2463 3192
2464 if (expect_true (pending)) 3193 if (expect_true (pending))
… …
2497} 3226}
2498 3227
2499/*****************************************************************************/ 3228/*****************************************************************************/
2500 3229
2501void noinline 3230void noinline
2502ev_io_start (EV_P_ ev_io *w) 3231ev_io_start (EV_P_ ev_io *w) EV_THROW
2503{ 3232{
2504 int fd = w->fd; 3233 int fd = w->fd;
2505 3234
2506 if (expect_false (ev_is_active (w))) 3235 if (expect_false (ev_is_active (w)))
2507 return; 3236 return;
2508 3237
2509 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3238 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2510 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3239 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2511 3240
2512 EV_FREQUENT_CHECK; 3241 EV_FREQUENT_CHECK;
2513 3242
2514 ev_start (EV_A_ (W)w, 1); 3243 ev_start (EV_A_ (W)w, 1);
2515 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3244 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2520 3249
2521 EV_FREQUENT_CHECK; 3250 EV_FREQUENT_CHECK;
2522} 3251}
2523 3252
2524void noinline 3253void noinline
2525ev_io_stop (EV_P_ ev_io *w) 3254ev_io_stop (EV_P_ ev_io *w) EV_THROW
2526{ 3255{
2527 clear_pending (EV_A_ (W)w); 3256 clear_pending (EV_A_ (W)w);
2528 if (expect_false (!ev_is_active (w))) 3257 if (expect_false (!ev_is_active (w)))
2529 return; 3258 return;
2530 3259
… …
2533 EV_FREQUENT_CHECK; 3262 EV_FREQUENT_CHECK;
2534 3263
2535 wlist_del (&anfds[w->fd].head, (WL)w); 3264 wlist_del (&anfds[w->fd].head, (WL)w);
2536 ev_stop (EV_A_ (W)w); 3265 ev_stop (EV_A_ (W)w);
2537 3266
2538 fd_change (EV_A_ w->fd, 1); 3267 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2539 3268
2540 EV_FREQUENT_CHECK; 3269 EV_FREQUENT_CHECK;
2541} 3270}
2542 3271
2543void noinline 3272void noinline
2544ev_timer_start (EV_P_ ev_timer *w) 3273ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2545{ 3274{
2546 if (expect_false (ev_is_active (w))) 3275 if (expect_false (ev_is_active (w)))
2547 return; 3276 return;
2548 3277
2549 ev_at (w) += mn_now; 3278 ev_at (w) += mn_now;
… …
2563 3292
2564 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3293 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2565} 3294}
2566 3295
2567void noinline 3296void noinline
2568ev_timer_stop (EV_P_ ev_timer *w) 3297ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2569{ 3298{
2570 clear_pending (EV_A_ (W)w); 3299 clear_pending (EV_A_ (W)w);
2571 if (expect_false (!ev_is_active (w))) 3300 if (expect_false (!ev_is_active (w)))
2572 return; 3301 return;
2573 3302
… …
2585 timers [active] = timers [timercnt + HEAP0]; 3314 timers [active] = timers [timercnt + HEAP0];
2586 adjustheap (timers, timercnt, active); 3315 adjustheap (timers, timercnt, active);
2587 } 3316 }
2588 } 3317 }
2589 3318
2590 EV_FREQUENT_CHECK;
2591
2592 ev_at (w) -= mn_now; 3319 ev_at (w) -= mn_now;
2593 3320
2594 ev_stop (EV_A_ (W)w); 3321 ev_stop (EV_A_ (W)w);
3322
3323 EV_FREQUENT_CHECK;
2595} 3324}
2596 3325
2597void noinline 3326void noinline
2598ev_timer_again (EV_P_ ev_timer *w) 3327ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2599{ 3328{
2600 EV_FREQUENT_CHECK; 3329 EV_FREQUENT_CHECK;
3330
3331 clear_pending (EV_A_ (W)w);
2601 3332
2602 if (ev_is_active (w)) 3333 if (ev_is_active (w))
2603 { 3334 {
2604 if (w->repeat) 3335 if (w->repeat)
2605 { 3336 {
… …
2618 3349
2619 EV_FREQUENT_CHECK; 3350 EV_FREQUENT_CHECK;
2620} 3351}
2621 3352
2622ev_tstamp 3353ev_tstamp
2623ev_timer_remaining (EV_P_ ev_timer *w) 3354ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2624{ 3355{
2625 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3356 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2626} 3357}
2627 3358
2628#if EV_PERIODIC_ENABLE 3359#if EV_PERIODIC_ENABLE
2629void noinline 3360void noinline
2630ev_periodic_start (EV_P_ ev_periodic *w) 3361ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2631{ 3362{
2632 if (expect_false (ev_is_active (w))) 3363 if (expect_false (ev_is_active (w)))
2633 return; 3364 return;
2634 3365
2635 if (w->reschedule_cb) 3366 if (w->reschedule_cb)
2636 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3367 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2637 else if (w->interval) 3368 else if (w->interval)
2638 { 3369 {
2639 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3370 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2640 /* this formula differs from the one in periodic_reify because we do not always round up */ 3371 periodic_recalc (EV_A_ w);
2641 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2642 } 3372 }
2643 else 3373 else
2644 ev_at (w) = w->offset; 3374 ev_at (w) = w->offset;
2645 3375
2646 EV_FREQUENT_CHECK; 3376 EV_FREQUENT_CHECK;
… …
2656 3386
2657 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3387 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2658} 3388}
2659 3389
2660void noinline 3390void noinline
2661ev_periodic_stop (EV_P_ ev_periodic *w) 3391ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2662{ 3392{
2663 clear_pending (EV_A_ (W)w); 3393 clear_pending (EV_A_ (W)w);
2664 if (expect_false (!ev_is_active (w))) 3394 if (expect_false (!ev_is_active (w)))
2665 return; 3395 return;
2666 3396
… …
2678 periodics [active] = periodics [periodiccnt + HEAP0]; 3408 periodics [active] = periodics [periodiccnt + HEAP0];
2679 adjustheap (periodics, periodiccnt, active); 3409 adjustheap (periodics, periodiccnt, active);
2680 } 3410 }
2681 } 3411 }
2682 3412
2683 EV_FREQUENT_CHECK;
2684
2685 ev_stop (EV_A_ (W)w); 3413 ev_stop (EV_A_ (W)w);
3414
3415 EV_FREQUENT_CHECK;
2686} 3416}
2687 3417
2688void noinline 3418void noinline
2689ev_periodic_again (EV_P_ ev_periodic *w) 3419ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2690{ 3420{
2691 /* TODO: use adjustheap and recalculation */ 3421 /* TODO: use adjustheap and recalculation */
2692 ev_periodic_stop (EV_A_ w); 3422 ev_periodic_stop (EV_A_ w);
2693 ev_periodic_start (EV_A_ w); 3423 ev_periodic_start (EV_A_ w);
2694} 3424}
… …
2696 3426
2697#ifndef SA_RESTART 3427#ifndef SA_RESTART
2698# define SA_RESTART 0 3428# define SA_RESTART 0
2699#endif 3429#endif
2700 3430
3431#if EV_SIGNAL_ENABLE
3432
2701void noinline 3433void noinline
2702ev_signal_start (EV_P_ ev_signal *w) 3434ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2703{ 3435{
2704 if (expect_false (ev_is_active (w))) 3436 if (expect_false (ev_is_active (w)))
2705 return; 3437 return;
2706 3438
2707 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3439 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2751 if (!((WL)w)->next) 3483 if (!((WL)w)->next)
2752# if EV_USE_SIGNALFD 3484# if EV_USE_SIGNALFD
2753 if (sigfd < 0) /*TODO*/ 3485 if (sigfd < 0) /*TODO*/
2754# endif 3486# endif
2755 { 3487 {
2756# if _WIN32 3488# ifdef _WIN32
3489 evpipe_init (EV_A);
3490
2757 signal (w->signum, ev_sighandler); 3491 signal (w->signum, ev_sighandler);
2758# else 3492# else
2759 struct sigaction sa; 3493 struct sigaction sa;
2760 3494
2761 evpipe_init (EV_A); 3495 evpipe_init (EV_A);
… …
2763 sa.sa_handler = ev_sighandler; 3497 sa.sa_handler = ev_sighandler;
2764 sigfillset (&sa.sa_mask); 3498 sigfillset (&sa.sa_mask);
2765 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3499 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2766 sigaction (w->signum, &sa, 0); 3500 sigaction (w->signum, &sa, 0);
2767 3501
3502 if (origflags & EVFLAG_NOSIGMASK)
3503 {
2768 sigemptyset (&sa.sa_mask); 3504 sigemptyset (&sa.sa_mask);
2769 sigaddset (&sa.sa_mask, w->signum); 3505 sigaddset (&sa.sa_mask, w->signum);
2770 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3506 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3507 }
2771#endif 3508#endif
2772 } 3509 }
2773 3510
2774 EV_FREQUENT_CHECK; 3511 EV_FREQUENT_CHECK;
2775} 3512}
2776 3513
2777void noinline 3514void noinline
2778ev_signal_stop (EV_P_ ev_signal *w) 3515ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2779{ 3516{
2780 clear_pending (EV_A_ (W)w); 3517 clear_pending (EV_A_ (W)w);
2781 if (expect_false (!ev_is_active (w))) 3518 if (expect_false (!ev_is_active (w)))
2782 return; 3519 return;
2783 3520
… …
2792 signals [w->signum - 1].loop = 0; /* unattach from signal */ 3529 signals [w->signum - 1].loop = 0; /* unattach from signal */
2793#endif 3530#endif
2794#if EV_USE_SIGNALFD 3531#if EV_USE_SIGNALFD
2795 if (sigfd >= 0) 3532 if (sigfd >= 0)
2796 { 3533 {
2797 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3534 sigset_t ss;
3535
3536 sigemptyset (&ss);
3537 sigaddset (&ss, w->signum);
2798 sigdelset (&sigfd_set, w->signum); 3538 sigdelset (&sigfd_set, w->signum);
3539
2799 signalfd (sigfd, &sigfd_set, 0); 3540 signalfd (sigfd, &sigfd_set, 0);
2800 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3541 sigprocmask (SIG_UNBLOCK, &ss, 0);
2801 /*TODO: maybe unblock signal? */
2802 } 3542 }
2803 else 3543 else
2804#endif 3544#endif
2805 signal (w->signum, SIG_DFL); 3545 signal (w->signum, SIG_DFL);
2806 } 3546 }
2807 3547
2808 EV_FREQUENT_CHECK; 3548 EV_FREQUENT_CHECK;
2809} 3549}
2810 3550
3551#endif
3552
3553#if EV_CHILD_ENABLE
3554
2811void 3555void
2812ev_child_start (EV_P_ ev_child *w) 3556ev_child_start (EV_P_ ev_child *w) EV_THROW
2813{ 3557{
2814#if EV_MULTIPLICITY 3558#if EV_MULTIPLICITY
2815 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3559 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2816#endif 3560#endif
2817 if (expect_false (ev_is_active (w))) 3561 if (expect_false (ev_is_active (w)))
2818 return; 3562 return;
2819 3563
2820 EV_FREQUENT_CHECK; 3564 EV_FREQUENT_CHECK;
2821 3565
2822 ev_start (EV_A_ (W)w, 1); 3566 ev_start (EV_A_ (W)w, 1);
2823 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3567 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2824 3568
2825 EV_FREQUENT_CHECK; 3569 EV_FREQUENT_CHECK;
2826} 3570}
2827 3571
2828void 3572void
2829ev_child_stop (EV_P_ ev_child *w) 3573ev_child_stop (EV_P_ ev_child *w) EV_THROW
2830{ 3574{
2831 clear_pending (EV_A_ (W)w); 3575 clear_pending (EV_A_ (W)w);
2832 if (expect_false (!ev_is_active (w))) 3576 if (expect_false (!ev_is_active (w)))
2833 return; 3577 return;
2834 3578
2835 EV_FREQUENT_CHECK; 3579 EV_FREQUENT_CHECK;
2836 3580
2837 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3581 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2838 ev_stop (EV_A_ (W)w); 3582 ev_stop (EV_A_ (W)w);
2839 3583
2840 EV_FREQUENT_CHECK; 3584 EV_FREQUENT_CHECK;
2841} 3585}
3586
3587#endif
2842 3588
2843#if EV_STAT_ENABLE 3589#if EV_STAT_ENABLE
2844 3590
2845# ifdef _WIN32 3591# ifdef _WIN32
2846# undef lstat 3592# undef lstat
… …
2852#define MIN_STAT_INTERVAL 0.1074891 3598#define MIN_STAT_INTERVAL 0.1074891
2853 3599
2854static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3600static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2855 3601
2856#if EV_USE_INOTIFY 3602#if EV_USE_INOTIFY
2857# define EV_INOTIFY_BUFSIZE 8192 3603
3604/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3605# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2858 3606
2859static void noinline 3607static void noinline
2860infy_add (EV_P_ ev_stat *w) 3608infy_add (EV_P_ ev_stat *w)
2861{ 3609{
2862 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); 3610 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);
2863 3611
2864 if (w->wd < 0) 3612 if (w->wd >= 0)
3613 {
3614 struct statfs sfs;
3615
3616 /* now local changes will be tracked by inotify, but remote changes won't */
3617 /* unless the filesystem is known to be local, we therefore still poll */
3618 /* also do poll on <2.6.25, but with normal frequency */
3619
3620 if (!fs_2625)
3621 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3622 else if (!statfs (w->path, &sfs)
3623 && (sfs.f_type == 0x1373 /* devfs */
3624 || sfs.f_type == 0xEF53 /* ext2/3 */
3625 || sfs.f_type == 0x3153464a /* jfs */
3626 || sfs.f_type == 0x52654973 /* reiser3 */
3627 || sfs.f_type == 0x01021994 /* tempfs */
3628 || sfs.f_type == 0x58465342 /* xfs */))
3629 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3630 else
3631 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2865 { 3632 }
3633 else
3634 {
3635 /* can't use inotify, continue to stat */
2866 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3636 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2867 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2868 3637
2869 /* monitor some parent directory for speedup hints */ 3638 /* if path is not there, monitor some parent directory for speedup hints */
2870 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3639 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2871 /* but an efficiency issue only */ 3640 /* but an efficiency issue only */
2872 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3641 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2873 { 3642 {
2874 char path [4096]; 3643 char path [4096];
… …
2884 if (!pend || pend == path) 3653 if (!pend || pend == path)
2885 break; 3654 break;
2886 3655
2887 *pend = 0; 3656 *pend = 0;
2888 w->wd = inotify_add_watch (fs_fd, path, mask); 3657 w->wd = inotify_add_watch (fs_fd, path, mask);
2889 } 3658 }
2890 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3659 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2891 } 3660 }
2892 } 3661 }
2893 3662
2894 if (w->wd >= 0) 3663 if (w->wd >= 0)
2895 {
2896 struct statfs sfs;
2897
2898 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3664 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2899 3665
2900 /* now local changes will be tracked by inotify, but remote changes won't */ 3666 /* now re-arm timer, if required */
2901 /* unless the filesystem it known to be local, we therefore still poll */ 3667 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2902 /* also do poll on <2.6.25, but with normal frequency */
2903
2904 if (fs_2625 && !statfs (w->path, &sfs))
2905 if (sfs.f_type == 0x1373 /* devfs */
2906 || sfs.f_type == 0xEF53 /* ext2/3 */
2907 || sfs.f_type == 0x3153464a /* jfs */
2908 || sfs.f_type == 0x52654973 /* reiser3 */
2909 || sfs.f_type == 0x01021994 /* tempfs */
2910 || sfs.f_type == 0x58465342 /* xfs */)
2911 return;
2912
2913 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2914 ev_timer_again (EV_A_ &w->timer); 3668 ev_timer_again (EV_A_ &w->timer);
2915 } 3669 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2916} 3670}
2917 3671
2918static void noinline 3672static void noinline
2919infy_del (EV_P_ ev_stat *w) 3673infy_del (EV_P_ ev_stat *w)
2920{ 3674{
… …
2923 3677
2924 if (wd < 0) 3678 if (wd < 0)
2925 return; 3679 return;
2926 3680
2927 w->wd = -2; 3681 w->wd = -2;
2928 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3682 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2929 wlist_del (&fs_hash [slot].head, (WL)w); 3683 wlist_del (&fs_hash [slot].head, (WL)w);
2930 3684
2931 /* remove this watcher, if others are watching it, they will rearm */ 3685 /* remove this watcher, if others are watching it, they will rearm */
2932 inotify_rm_watch (fs_fd, wd); 3686 inotify_rm_watch (fs_fd, wd);
2933} 3687}
… …
2935static void noinline 3689static void noinline
2936infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3690infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2937{ 3691{
2938 if (slot < 0) 3692 if (slot < 0)
2939 /* overflow, need to check for all hash slots */ 3693 /* overflow, need to check for all hash slots */
2940 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3694 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2941 infy_wd (EV_A_ slot, wd, ev); 3695 infy_wd (EV_A_ slot, wd, ev);
2942 else 3696 else
2943 { 3697 {
2944 WL w_; 3698 WL w_;
2945 3699
2946 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3700 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2947 { 3701 {
2948 ev_stat *w = (ev_stat *)w_; 3702 ev_stat *w = (ev_stat *)w_;
2949 w_ = w_->next; /* lets us remove this watcher and all before it */ 3703 w_ = w_->next; /* lets us remove this watcher and all before it */
2950 3704
2951 if (w->wd == wd || wd == -1) 3705 if (w->wd == wd || wd == -1)
2952 { 3706 {
2953 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3707 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2954 { 3708 {
2955 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3709 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2956 w->wd = -1; 3710 w->wd = -1;
2957 infy_add (EV_A_ w); /* re-add, no matter what */ 3711 infy_add (EV_A_ w); /* re-add, no matter what */
2958 } 3712 }
2959 3713
2960 stat_timer_cb (EV_A_ &w->timer, 0); 3714 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2965 3719
2966static void 3720static void
2967infy_cb (EV_P_ ev_io *w, int revents) 3721infy_cb (EV_P_ ev_io *w, int revents)
2968{ 3722{
2969 char buf [EV_INOTIFY_BUFSIZE]; 3723 char buf [EV_INOTIFY_BUFSIZE];
2970 struct inotify_event *ev = (struct inotify_event *)buf;
2971 int ofs; 3724 int ofs;
2972 int len = read (fs_fd, buf, sizeof (buf)); 3725 int len = read (fs_fd, buf, sizeof (buf));
2973 3726
2974 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3727 for (ofs = 0; ofs < len; )
3728 {
3729 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2975 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3730 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3731 ofs += sizeof (struct inotify_event) + ev->len;
3732 }
2976} 3733}
2977 3734
2978inline_size void 3735inline_size void ecb_cold
2979check_2625 (EV_P) 3736ev_check_2625 (EV_P)
2980{ 3737{
2981 /* kernels < 2.6.25 are borked 3738 /* kernels < 2.6.25 are borked
2982 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3739 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2983 */ 3740 */
2984 struct utsname buf; 3741 if (ev_linux_version () < 0x020619)
2985 int major, minor, micro;
2986
2987 if (uname (&buf))
2988 return;
2989
2990 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2991 return;
2992
2993 if (major < 2
2994 || (major == 2 && minor < 6)
2995 || (major == 2 && minor == 6 && micro < 25))
2996 return; 3742 return;
2997 3743
2998 fs_2625 = 1; 3744 fs_2625 = 1;
2999} 3745}
3000 3746
3001inline_size int 3747inline_size int
3002infy_newfd (void) 3748infy_newfd (void)
3003{ 3749{
3004#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3750#if defined IN_CLOEXEC && defined IN_NONBLOCK
3005 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3751 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3006 if (fd >= 0) 3752 if (fd >= 0)
3007 return fd; 3753 return fd;
3008#endif 3754#endif
3009 return inotify_init (); 3755 return inotify_init ();
… …
3015 if (fs_fd != -2) 3761 if (fs_fd != -2)
3016 return; 3762 return;
3017 3763
3018 fs_fd = -1; 3764 fs_fd = -1;
3019 3765
3020 check_2625 (EV_A); 3766 ev_check_2625 (EV_A);
3021 3767
3022 fs_fd = infy_newfd (); 3768 fs_fd = infy_newfd ();
3023 3769
3024 if (fs_fd >= 0) 3770 if (fs_fd >= 0)
3025 { 3771 {
3026 fd_intern (fs_fd); 3772 fd_intern (fs_fd);
3027 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3773 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
3028 ev_set_priority (&fs_w, EV_MAXPRI); 3774 ev_set_priority (&fs_w, EV_MAXPRI);
3029 ev_io_start (EV_A_ &fs_w); 3775 ev_io_start (EV_A_ &fs_w);
3776 ev_unref (EV_A);
3030 } 3777 }
3031} 3778}
3032 3779
3033inline_size void 3780inline_size void
3034infy_fork (EV_P) 3781infy_fork (EV_P)
… …
3036 int slot; 3783 int slot;
3037 3784
3038 if (fs_fd < 0) 3785 if (fs_fd < 0)
3039 return; 3786 return;
3040 3787
3788 ev_ref (EV_A);
3041 ev_io_stop (EV_A_ &fs_w); 3789 ev_io_stop (EV_A_ &fs_w);
3042 close (fs_fd); 3790 close (fs_fd);
3043 fs_fd = infy_newfd (); 3791 fs_fd = infy_newfd ();
3044 3792
3045 if (fs_fd >= 0) 3793 if (fs_fd >= 0)
3046 { 3794 {
3047 fd_intern (fs_fd); 3795 fd_intern (fs_fd);
3048 ev_io_set (&fs_w, fs_fd, EV_READ); 3796 ev_io_set (&fs_w, fs_fd, EV_READ);
3049 ev_io_start (EV_A_ &fs_w); 3797 ev_io_start (EV_A_ &fs_w);
3798 ev_unref (EV_A);
3050 } 3799 }
3051 3800
3052 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3801 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3053 { 3802 {
3054 WL w_ = fs_hash [slot].head; 3803 WL w_ = fs_hash [slot].head;
3055 fs_hash [slot].head = 0; 3804 fs_hash [slot].head = 0;
3056 3805
3057 while (w_) 3806 while (w_)
… …
3062 w->wd = -1; 3811 w->wd = -1;
3063 3812
3064 if (fs_fd >= 0) 3813 if (fs_fd >= 0)
3065 infy_add (EV_A_ w); /* re-add, no matter what */ 3814 infy_add (EV_A_ w); /* re-add, no matter what */
3066 else 3815 else
3816 {
3817 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3818 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3067 ev_timer_again (EV_A_ &w->timer); 3819 ev_timer_again (EV_A_ &w->timer);
3820 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3821 }
3068 } 3822 }
3069 } 3823 }
3070} 3824}
3071 3825
3072#endif 3826#endif
… …
3076#else 3830#else
3077# define EV_LSTAT(p,b) lstat (p, b) 3831# define EV_LSTAT(p,b) lstat (p, b)
3078#endif 3832#endif
3079 3833
3080void 3834void
3081ev_stat_stat (EV_P_ ev_stat *w) 3835ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3082{ 3836{
3083 if (lstat (w->path, &w->attr) < 0) 3837 if (lstat (w->path, &w->attr) < 0)
3084 w->attr.st_nlink = 0; 3838 w->attr.st_nlink = 0;
3085 else if (!w->attr.st_nlink) 3839 else if (!w->attr.st_nlink)
3086 w->attr.st_nlink = 1; 3840 w->attr.st_nlink = 1;
… …
3089static void noinline 3843static void noinline
3090stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3844stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3091{ 3845{
3092 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3846 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3093 3847
3094 /* we copy this here each the time so that */ 3848 ev_statdata prev = w->attr;
3095 /* prev has the old value when the callback gets invoked */
3096 w->prev = w->attr;
3097 ev_stat_stat (EV_A_ w); 3849 ev_stat_stat (EV_A_ w);
3098 3850
3099 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3851 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3100 if ( 3852 if (
3101 w->prev.st_dev != w->attr.st_dev 3853 prev.st_dev != w->attr.st_dev
3102 || w->prev.st_ino != w->attr.st_ino 3854 || prev.st_ino != w->attr.st_ino
3103 || w->prev.st_mode != w->attr.st_mode 3855 || prev.st_mode != w->attr.st_mode
3104 || w->prev.st_nlink != w->attr.st_nlink 3856 || prev.st_nlink != w->attr.st_nlink
3105 || w->prev.st_uid != w->attr.st_uid 3857 || prev.st_uid != w->attr.st_uid
3106 || w->prev.st_gid != w->attr.st_gid 3858 || prev.st_gid != w->attr.st_gid
3107 || w->prev.st_rdev != w->attr.st_rdev 3859 || prev.st_rdev != w->attr.st_rdev
3108 || w->prev.st_size != w->attr.st_size 3860 || prev.st_size != w->attr.st_size
3109 || w->prev.st_atime != w->attr.st_atime 3861 || prev.st_atime != w->attr.st_atime
3110 || w->prev.st_mtime != w->attr.st_mtime 3862 || prev.st_mtime != w->attr.st_mtime
3111 || w->prev.st_ctime != w->attr.st_ctime 3863 || prev.st_ctime != w->attr.st_ctime
3112 ) { 3864 ) {
3865 /* we only update w->prev on actual differences */
3866 /* in case we test more often than invoke the callback, */
3867 /* to ensure that prev is always different to attr */
3868 w->prev = prev;
3869
3113 #if EV_USE_INOTIFY 3870 #if EV_USE_INOTIFY
3114 if (fs_fd >= 0) 3871 if (fs_fd >= 0)
3115 { 3872 {
3116 infy_del (EV_A_ w); 3873 infy_del (EV_A_ w);
3117 infy_add (EV_A_ w); 3874 infy_add (EV_A_ w);
… …
3122 ev_feed_event (EV_A_ w, EV_STAT); 3879 ev_feed_event (EV_A_ w, EV_STAT);
3123 } 3880 }
3124} 3881}
3125 3882
3126void 3883void
3127ev_stat_start (EV_P_ ev_stat *w) 3884ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3128{ 3885{
3129 if (expect_false (ev_is_active (w))) 3886 if (expect_false (ev_is_active (w)))
3130 return; 3887 return;
3131 3888
3132 ev_stat_stat (EV_A_ w); 3889 ev_stat_stat (EV_A_ w);
… …
3142 3899
3143 if (fs_fd >= 0) 3900 if (fs_fd >= 0)
3144 infy_add (EV_A_ w); 3901 infy_add (EV_A_ w);
3145 else 3902 else
3146#endif 3903#endif
3904 {
3147 ev_timer_again (EV_A_ &w->timer); 3905 ev_timer_again (EV_A_ &w->timer);
3906 ev_unref (EV_A);
3907 }
3148 3908
3149 ev_start (EV_A_ (W)w, 1); 3909 ev_start (EV_A_ (W)w, 1);
3150 3910
3151 EV_FREQUENT_CHECK; 3911 EV_FREQUENT_CHECK;
3152} 3912}
3153 3913
3154void 3914void
3155ev_stat_stop (EV_P_ ev_stat *w) 3915ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3156{ 3916{
3157 clear_pending (EV_A_ (W)w); 3917 clear_pending (EV_A_ (W)w);
3158 if (expect_false (!ev_is_active (w))) 3918 if (expect_false (!ev_is_active (w)))
3159 return; 3919 return;
3160 3920
3161 EV_FREQUENT_CHECK; 3921 EV_FREQUENT_CHECK;
3162 3922
3163#if EV_USE_INOTIFY 3923#if EV_USE_INOTIFY
3164 infy_del (EV_A_ w); 3924 infy_del (EV_A_ w);
3165#endif 3925#endif
3926
3927 if (ev_is_active (&w->timer))
3928 {
3929 ev_ref (EV_A);
3166 ev_timer_stop (EV_A_ &w->timer); 3930 ev_timer_stop (EV_A_ &w->timer);
3931 }
3167 3932
3168 ev_stop (EV_A_ (W)w); 3933 ev_stop (EV_A_ (W)w);
3169 3934
3170 EV_FREQUENT_CHECK; 3935 EV_FREQUENT_CHECK;
3171} 3936}
3172#endif 3937#endif
3173 3938
3174#if EV_IDLE_ENABLE 3939#if EV_IDLE_ENABLE
3175void 3940void
3176ev_idle_start (EV_P_ ev_idle *w) 3941ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3177{ 3942{
3178 if (expect_false (ev_is_active (w))) 3943 if (expect_false (ev_is_active (w)))
3179 return; 3944 return;
3180 3945
3181 pri_adjust (EV_A_ (W)w); 3946 pri_adjust (EV_A_ (W)w);
… …
3194 3959
3195 EV_FREQUENT_CHECK; 3960 EV_FREQUENT_CHECK;
3196} 3961}
3197 3962
3198void 3963void
3199ev_idle_stop (EV_P_ ev_idle *w) 3964ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3200{ 3965{
3201 clear_pending (EV_A_ (W)w); 3966 clear_pending (EV_A_ (W)w);
3202 if (expect_false (!ev_is_active (w))) 3967 if (expect_false (!ev_is_active (w)))
3203 return; 3968 return;
3204 3969
… …
3216 3981
3217 EV_FREQUENT_CHECK; 3982 EV_FREQUENT_CHECK;
3218} 3983}
3219#endif 3984#endif
3220 3985
3986#if EV_PREPARE_ENABLE
3221void 3987void
3222ev_prepare_start (EV_P_ ev_prepare *w) 3988ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3223{ 3989{
3224 if (expect_false (ev_is_active (w))) 3990 if (expect_false (ev_is_active (w)))
3225 return; 3991 return;
3226 3992
3227 EV_FREQUENT_CHECK; 3993 EV_FREQUENT_CHECK;
… …
3232 3998
3233 EV_FREQUENT_CHECK; 3999 EV_FREQUENT_CHECK;
3234} 4000}
3235 4001
3236void 4002void
3237ev_prepare_stop (EV_P_ ev_prepare *w) 4003ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3238{ 4004{
3239 clear_pending (EV_A_ (W)w); 4005 clear_pending (EV_A_ (W)w);
3240 if (expect_false (!ev_is_active (w))) 4006 if (expect_false (!ev_is_active (w)))
3241 return; 4007 return;
3242 4008
… …
3251 4017
3252 ev_stop (EV_A_ (W)w); 4018 ev_stop (EV_A_ (W)w);
3253 4019
3254 EV_FREQUENT_CHECK; 4020 EV_FREQUENT_CHECK;
3255} 4021}
4022#endif
3256 4023
4024#if EV_CHECK_ENABLE
3257void 4025void
3258ev_check_start (EV_P_ ev_check *w) 4026ev_check_start (EV_P_ ev_check *w) EV_THROW
3259{ 4027{
3260 if (expect_false (ev_is_active (w))) 4028 if (expect_false (ev_is_active (w)))
3261 return; 4029 return;
3262 4030
3263 EV_FREQUENT_CHECK; 4031 EV_FREQUENT_CHECK;
… …
3268 4036
3269 EV_FREQUENT_CHECK; 4037 EV_FREQUENT_CHECK;
3270} 4038}
3271 4039
3272void 4040void
3273ev_check_stop (EV_P_ ev_check *w) 4041ev_check_stop (EV_P_ ev_check *w) EV_THROW
3274{ 4042{
3275 clear_pending (EV_A_ (W)w); 4043 clear_pending (EV_A_ (W)w);
3276 if (expect_false (!ev_is_active (w))) 4044 if (expect_false (!ev_is_active (w)))
3277 return; 4045 return;
3278 4046
… …
3287 4055
3288 ev_stop (EV_A_ (W)w); 4056 ev_stop (EV_A_ (W)w);
3289 4057
3290 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
3291} 4059}
4060#endif
3292 4061
3293#if EV_EMBED_ENABLE 4062#if EV_EMBED_ENABLE
3294void noinline 4063void noinline
3295ev_embed_sweep (EV_P_ ev_embed *w) 4064ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3296{ 4065{
3297 ev_loop (w->other, EVLOOP_NONBLOCK); 4066 ev_run (w->other, EVRUN_NOWAIT);
3298} 4067}
3299 4068
3300static void 4069static void
3301embed_io_cb (EV_P_ ev_io *io, int revents) 4070embed_io_cb (EV_P_ ev_io *io, int revents)
3302{ 4071{
3303 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4072 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3304 4073
3305 if (ev_cb (w)) 4074 if (ev_cb (w))
3306 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4075 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3307 else 4076 else
3308 ev_loop (w->other, EVLOOP_NONBLOCK); 4077 ev_run (w->other, EVRUN_NOWAIT);
3309} 4078}
3310 4079
3311static void 4080static void
3312embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4081embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3313{ 4082{
… …
3317 EV_P = w->other; 4086 EV_P = w->other;
3318 4087
3319 while (fdchangecnt) 4088 while (fdchangecnt)
3320 { 4089 {
3321 fd_reify (EV_A); 4090 fd_reify (EV_A);
3322 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4091 ev_run (EV_A_ EVRUN_NOWAIT);
3323 } 4092 }
3324 } 4093 }
3325} 4094}
3326 4095
3327static void 4096static void
… …
3333 4102
3334 { 4103 {
3335 EV_P = w->other; 4104 EV_P = w->other;
3336 4105
3337 ev_loop_fork (EV_A); 4106 ev_loop_fork (EV_A);
3338 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4107 ev_run (EV_A_ EVRUN_NOWAIT);
3339 } 4108 }
3340 4109
3341 ev_embed_start (EV_A_ w); 4110 ev_embed_start (EV_A_ w);
3342} 4111}
3343 4112
… …
3348 ev_idle_stop (EV_A_ idle); 4117 ev_idle_stop (EV_A_ idle);
3349} 4118}
3350#endif 4119#endif
3351 4120
3352void 4121void
3353ev_embed_start (EV_P_ ev_embed *w) 4122ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3354{ 4123{
3355 if (expect_false (ev_is_active (w))) 4124 if (expect_false (ev_is_active (w)))
3356 return; 4125 return;
3357 4126
3358 { 4127 {
… …
3379 4148
3380 EV_FREQUENT_CHECK; 4149 EV_FREQUENT_CHECK;
3381} 4150}
3382 4151
3383void 4152void
3384ev_embed_stop (EV_P_ ev_embed *w) 4153ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3385{ 4154{
3386 clear_pending (EV_A_ (W)w); 4155 clear_pending (EV_A_ (W)w);
3387 if (expect_false (!ev_is_active (w))) 4156 if (expect_false (!ev_is_active (w)))
3388 return; 4157 return;
3389 4158
… …
3391 4160
3392 ev_io_stop (EV_A_ &w->io); 4161 ev_io_stop (EV_A_ &w->io);
3393 ev_prepare_stop (EV_A_ &w->prepare); 4162 ev_prepare_stop (EV_A_ &w->prepare);
3394 ev_fork_stop (EV_A_ &w->fork); 4163 ev_fork_stop (EV_A_ &w->fork);
3395 4164
4165 ev_stop (EV_A_ (W)w);
4166
3396 EV_FREQUENT_CHECK; 4167 EV_FREQUENT_CHECK;
3397} 4168}
3398#endif 4169#endif
3399 4170
3400#if EV_FORK_ENABLE 4171#if EV_FORK_ENABLE
3401void 4172void
3402ev_fork_start (EV_P_ ev_fork *w) 4173ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3403{ 4174{
3404 if (expect_false (ev_is_active (w))) 4175 if (expect_false (ev_is_active (w)))
3405 return; 4176 return;
3406 4177
3407 EV_FREQUENT_CHECK; 4178 EV_FREQUENT_CHECK;
… …
3412 4183
3413 EV_FREQUENT_CHECK; 4184 EV_FREQUENT_CHECK;
3414} 4185}
3415 4186
3416void 4187void
3417ev_fork_stop (EV_P_ ev_fork *w) 4188ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3418{ 4189{
3419 clear_pending (EV_A_ (W)w); 4190 clear_pending (EV_A_ (W)w);
3420 if (expect_false (!ev_is_active (w))) 4191 if (expect_false (!ev_is_active (w)))
3421 return; 4192 return;
3422 4193
… …
3433 4204
3434 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
3435} 4206}
3436#endif 4207#endif
3437 4208
4209#if EV_CLEANUP_ENABLE
4210void
4211ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4212{
4213 if (expect_false (ev_is_active (w)))
4214 return;
4215
4216 EV_FREQUENT_CHECK;
4217
4218 ev_start (EV_A_ (W)w, ++cleanupcnt);
4219 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4220 cleanups [cleanupcnt - 1] = w;
4221
4222 /* cleanup watchers should never keep a refcount on the loop */
4223 ev_unref (EV_A);
4224 EV_FREQUENT_CHECK;
4225}
4226
4227void
4228ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4229{
4230 clear_pending (EV_A_ (W)w);
4231 if (expect_false (!ev_is_active (w)))
4232 return;
4233
4234 EV_FREQUENT_CHECK;
4235 ev_ref (EV_A);
4236
4237 {
4238 int active = ev_active (w);
4239
4240 cleanups [active - 1] = cleanups [--cleanupcnt];
4241 ev_active (cleanups [active - 1]) = active;
4242 }
4243
4244 ev_stop (EV_A_ (W)w);
4245
4246 EV_FREQUENT_CHECK;
4247}
4248#endif
4249
3438#if EV_ASYNC_ENABLE 4250#if EV_ASYNC_ENABLE
3439void 4251void
3440ev_async_start (EV_P_ ev_async *w) 4252ev_async_start (EV_P_ ev_async *w) EV_THROW
3441{ 4253{
3442 if (expect_false (ev_is_active (w))) 4254 if (expect_false (ev_is_active (w)))
3443 return; 4255 return;
4256
4257 w->sent = 0;
3444 4258
3445 evpipe_init (EV_A); 4259 evpipe_init (EV_A);
3446 4260
3447 EV_FREQUENT_CHECK; 4261 EV_FREQUENT_CHECK;
3448 4262
… …
3452 4266
3453 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3454} 4268}
3455 4269
3456void 4270void
3457ev_async_stop (EV_P_ ev_async *w) 4271ev_async_stop (EV_P_ ev_async *w) EV_THROW
3458{ 4272{
3459 clear_pending (EV_A_ (W)w); 4273 clear_pending (EV_A_ (W)w);
3460 if (expect_false (!ev_is_active (w))) 4274 if (expect_false (!ev_is_active (w)))
3461 return; 4275 return;
3462 4276
… …
3473 4287
3474 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3475} 4289}
3476 4290
3477void 4291void
3478ev_async_send (EV_P_ ev_async *w) 4292ev_async_send (EV_P_ ev_async *w) EV_THROW
3479{ 4293{
3480 w->sent = 1; 4294 w->sent = 1;
3481 evpipe_write (EV_A_ &async_pending); 4295 evpipe_write (EV_A_ &async_pending);
3482} 4296}
3483#endif 4297#endif
… …
3520 4334
3521 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4335 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3522} 4336}
3523 4337
3524void 4338void
3525ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4339ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3526{ 4340{
3527 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4341 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3528 4342
3529 if (expect_false (!once)) 4343 if (expect_false (!once))
3530 { 4344 {
3531 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4345 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3532 return; 4346 return;
3533 } 4347 }
3534 4348
3535 once->cb = cb; 4349 once->cb = cb;
3536 once->arg = arg; 4350 once->arg = arg;
… …
3551} 4365}
3552 4366
3553/*****************************************************************************/ 4367/*****************************************************************************/
3554 4368
3555#if EV_WALK_ENABLE 4369#if EV_WALK_ENABLE
3556void 4370void ecb_cold
3557ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4371ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3558{ 4372{
3559 int i, j; 4373 int i, j;
3560 ev_watcher_list *wl, *wn; 4374 ev_watcher_list *wl, *wn;
3561 4375
3562 if (types & (EV_IO | EV_EMBED)) 4376 if (types & (EV_IO | EV_EMBED))
… …
3605 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4419 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3606#endif 4420#endif
3607 4421
3608#if EV_IDLE_ENABLE 4422#if EV_IDLE_ENABLE
3609 if (types & EV_IDLE) 4423 if (types & EV_IDLE)
3610 for (j = NUMPRI; i--; ) 4424 for (j = NUMPRI; j--; )
3611 for (i = idlecnt [j]; i--; ) 4425 for (i = idlecnt [j]; i--; )
3612 cb (EV_A_ EV_IDLE, idles [j][i]); 4426 cb (EV_A_ EV_IDLE, idles [j][i]);
3613#endif 4427#endif
3614 4428
3615#if EV_FORK_ENABLE 4429#if EV_FORK_ENABLE
… …
3623 if (types & EV_ASYNC) 4437 if (types & EV_ASYNC)
3624 for (i = asynccnt; i--; ) 4438 for (i = asynccnt; i--; )
3625 cb (EV_A_ EV_ASYNC, asyncs [i]); 4439 cb (EV_A_ EV_ASYNC, asyncs [i]);
3626#endif 4440#endif
3627 4441
4442#if EV_PREPARE_ENABLE
3628 if (types & EV_PREPARE) 4443 if (types & EV_PREPARE)
3629 for (i = preparecnt; i--; ) 4444 for (i = preparecnt; i--; )
3630#if EV_EMBED_ENABLE 4445# if EV_EMBED_ENABLE
3631 if (ev_cb (prepares [i]) != embed_prepare_cb) 4446 if (ev_cb (prepares [i]) != embed_prepare_cb)
3632#endif 4447# endif
3633 cb (EV_A_ EV_PREPARE, prepares [i]); 4448 cb (EV_A_ EV_PREPARE, prepares [i]);
4449#endif
3634 4450
4451#if EV_CHECK_ENABLE
3635 if (types & EV_CHECK) 4452 if (types & EV_CHECK)
3636 for (i = checkcnt; i--; ) 4453 for (i = checkcnt; i--; )
3637 cb (EV_A_ EV_CHECK, checks [i]); 4454 cb (EV_A_ EV_CHECK, checks [i]);
4455#endif
3638 4456
4457#if EV_SIGNAL_ENABLE
3639 if (types & EV_SIGNAL) 4458 if (types & EV_SIGNAL)
3640 for (i = 0; i < EV_NSIG - 1; ++i) 4459 for (i = 0; i < EV_NSIG - 1; ++i)
3641 for (wl = signals [i].head; wl; ) 4460 for (wl = signals [i].head; wl; )
3642 { 4461 {
3643 wn = wl->next; 4462 wn = wl->next;
3644 cb (EV_A_ EV_SIGNAL, wl); 4463 cb (EV_A_ EV_SIGNAL, wl);
3645 wl = wn; 4464 wl = wn;
3646 } 4465 }
4466#endif
3647 4467
4468#if EV_CHILD_ENABLE
3648 if (types & EV_CHILD) 4469 if (types & EV_CHILD)
3649 for (i = EV_PID_HASHSIZE; i--; ) 4470 for (i = (EV_PID_HASHSIZE); i--; )
3650 for (wl = childs [i]; wl; ) 4471 for (wl = childs [i]; wl; )
3651 { 4472 {
3652 wn = wl->next; 4473 wn = wl->next;
3653 cb (EV_A_ EV_CHILD, wl); 4474 cb (EV_A_ EV_CHILD, wl);
3654 wl = wn; 4475 wl = wn;
3655 } 4476 }
4477#endif
3656/* EV_STAT 0x00001000 /* stat data changed */ 4478/* EV_STAT 0x00001000 /* stat data changed */
3657/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4479/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3658} 4480}
3659#endif 4481#endif
3660 4482
3661#if EV_MULTIPLICITY 4483#if EV_MULTIPLICITY
3662 #include "ev_wrap.h" 4484 #include "ev_wrap.h"
3663#endif 4485#endif
3664 4486
3665#ifdef __cplusplus
3666}
3667#endif
3668

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