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Comparing libev/ev.c (file contents):
Revision 1.334 by root, Tue Mar 9 09:00:59 2010 UTC vs.
Revision 1.418 by root, Mon Apr 2 23:14:41 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 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
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
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>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
171 181
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# 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
176#endif 197#endif
177 198
178#ifndef _WIN32 199#ifndef _WIN32
179# include <sys/time.h> 200# include <sys/time.h>
180# include <sys/wait.h> 201# include <sys/wait.h>
… …
187# define EV_SELECT_IS_WINSOCKET 1 208# define EV_SELECT_IS_WINSOCKET 1
188# endif 209# endif
189# undef EV_AVOID_STDIO 210# undef EV_AVOID_STDIO
190#endif 211#endif
191 212
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
220
192/* 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 */
193 222
194/* try to deduce the maximum number of signals on this platform */ 223/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 224#if defined EV_NSIG
196/* use what's provided */ 225/* use what's provided */
197#elif defined (NSIG) 226#elif defined NSIG
198# define EV_NSIG (NSIG) 227# define EV_NSIG (NSIG)
199#elif defined(_NSIG) 228#elif defined _NSIG
200# define EV_NSIG (_NSIG) 229# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX) 230#elif defined SIGMAX
202# define EV_NSIG (SIGMAX+1) 231# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX) 232#elif defined SIG_MAX
204# define EV_NSIG (SIG_MAX+1) 233# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX) 234#elif defined _SIG_MAX
206# define EV_NSIG (_SIG_MAX+1) 235# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG) 236#elif defined MAXSIG
208# define EV_NSIG (MAXSIG+1) 237# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 238#elif defined MAX_SIG
210# define EV_NSIG (MAX_SIG+1) 239# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 240#elif defined SIGARRAYSIZE
212# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 242#elif defined _sys_nsig
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 244#else
216# error "unable to find value for NSIG, please report" 245# error "unable to find value for NSIG, please report"
217/* 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! :) */
218# define EV_NSIG 65 248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
219#endif 253#endif
220 254
221#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
222# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
223# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
224# else 258# else
225# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
226# endif 260# endif
227#endif 261#endif
228 262
229#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
230# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
231# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
232# else 266# else
233# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
234# endif 268# endif
235#endif 269#endif
236 270
… …
238# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239#endif 273#endif
240 274
241#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
242# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
243# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
244# else 278# else
245# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
246# endif 280# endif
247#endif 281#endif
248 282
249#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
250# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
251#endif 285#endif
252 286
253#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
254# ifdef _WIN32 288# ifdef _WIN32
255# define EV_USE_POLL 0 289# define EV_USE_POLL 0
256# else 290# else
257# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
258# endif 292# endif
259#endif 293#endif
260 294
261#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264# else 298# else
265# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
266# endif 300# endif
267#endif 301#endif
268 302
… …
274# define EV_USE_PORT 0 308# define EV_USE_PORT 0
275#endif 309#endif
276 310
277#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
280# else 314# else
281# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
282# endif 316# endif
283#endif 317#endif
284 318
285#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
286# if EV_MINIMAL 320# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
287# define EV_PID_HASHSIZE 1
288# else
289# define EV_PID_HASHSIZE 16
290# endif
291#endif 321#endif
292 322
293#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
294# if EV_MINIMAL 324# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
295# define EV_INOTIFY_HASHSIZE 1
296# else
297# define EV_INOTIFY_HASHSIZE 16
298# endif
299#endif 325#endif
300 326
301#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
302# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
304# else 330# else
305# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
306# endif 332# endif
307#endif 333#endif
308 334
309#ifndef EV_USE_SIGNALFD 335#ifndef EV_USE_SIGNALFD
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311# define EV_USE_SIGNALFD 1 337# define EV_USE_SIGNALFD EV_FEATURE_OS
312# else 338# else
313# define EV_USE_SIGNALFD 0 339# define EV_USE_SIGNALFD 0
314# endif 340# endif
315#endif 341#endif
316 342
… …
319# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
320# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
321#endif 347#endif
322 348
323#ifndef EV_VERIFY 349#ifndef EV_VERIFY
324# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325#endif 351#endif
326 352
327#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
328# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
329#endif 355#endif
330 356
331#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
332# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
333#endif 359#endif
334 360
335/* 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, */
336/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
337#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
… …
368# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
369# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
370#endif 396#endif
371 397
372#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
373# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
374# include <sys/select.h> 401# include <sys/select.h>
375# endif 402# endif
376#endif 403#endif
377 404
378#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
379# include <sys/utsname.h>
380# include <sys/statfs.h> 406# include <sys/statfs.h>
381# include <sys/inotify.h> 407# include <sys/inotify.h>
382/* 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 */
383# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
384# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
401# define EFD_CLOEXEC O_CLOEXEC 427# define EFD_CLOEXEC O_CLOEXEC
402# else 428# else
403# define EFD_CLOEXEC 02000000 429# define EFD_CLOEXEC 02000000
404# endif 430# endif
405# endif 431# endif
406# ifdef __cplusplus
407extern "C" {
408# endif
409int (eventfd) (unsigned int initval, int flags); 432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410# ifdef __cplusplus
411}
412# endif
413#endif 433#endif
414 434
415#if EV_USE_SIGNALFD 435#if EV_USE_SIGNALFD
416/* 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 */
417# include <stdint.h> 437# include <stdint.h>
… …
423# define SFD_CLOEXEC O_CLOEXEC 443# define SFD_CLOEXEC O_CLOEXEC
424# else 444# else
425# define SFD_CLOEXEC 02000000 445# define SFD_CLOEXEC 02000000
426# endif 446# endif
427# endif 447# endif
428# ifdef __cplusplus
429extern "C" {
430# endif
431int signalfd (int fd, const sigset_t *mask, int flags); 448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
432 449
433struct signalfd_siginfo 450struct signalfd_siginfo
434{ 451{
435 uint32_t ssi_signo; 452 uint32_t ssi_signo;
436 char pad[128 - sizeof (uint32_t)]; 453 char pad[128 - sizeof (uint32_t)];
437}; 454};
438# ifdef __cplusplus
439}
440# endif 455#endif
441#endif
442
443 456
444/**/ 457/**/
445 458
446#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
447# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
448#else 461#else
449# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
450#endif 463#endif
451 464
452/* 465/*
453 * This is used to avoid floating point rounding problems. 466 * This is used to work around floating point rounding problems.
454 * It is added to ev_rt_now when scheduling periodics
455 * to ensure progress, time-wise, even when rounding
456 * errors are against us.
457 * This value is good at least till the year 4000. 467 * This value is good at least till the year 4000.
458 * Better solutions welcome.
459 */ 468 */
460#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 */
461 471
462#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) */
463#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) */
464 474
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;
465#if __GNUC__ >= 4 519 #if __GNUC__
466# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
467# 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
468#else 526#else
469# define expect(expr,value) (expr) 527 #include <inttypes.h>
470# define noinline
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
472# define inline
473# 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)))
474#endif 542 #endif
543#endif
475 544
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 #endif
585 #endif
586#endif
587
588#ifndef ECB_MEMORY_FENCE
589 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize ()
591 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
592 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
593 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598 #elif defined _WIN32
599 #include <WinNT.h>
600 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602 #include <mbarrier.h>
603 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
604 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
605 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
606 #elif __xlC__
607 #define ECB_MEMORY_FENCE __sync ()
608 #endif
609#endif
610
611#ifndef ECB_MEMORY_FENCE
612 #if !ECB_AVOID_PTHREADS
613 /*
614 * if you get undefined symbol references to pthread_mutex_lock,
615 * or failure to find pthread.h, then you should implement
616 * the ECB_MEMORY_FENCE operations for your cpu/compiler
617 * OR provide pthread.h and link against the posix thread library
618 * of your system.
619 */
620 #include <pthread.h>
621 #define ECB_NEEDS_PTHREADS 1
622 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
623
624 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
625 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
626 #endif
627#endif
628
629#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
630 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
631#endif
632
633#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
634 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
635#endif
636
637/*****************************************************************************/
638
639#define ECB_C99 (__STDC_VERSION__ >= 199901L)
640
641#if __cplusplus
642 #define ecb_inline static inline
643#elif ECB_GCC_VERSION(2,5)
644 #define ecb_inline static __inline__
645#elif ECB_C99
646 #define ecb_inline static inline
647#else
648 #define ecb_inline static
649#endif
650
651#if ECB_GCC_VERSION(3,3)
652 #define ecb_restrict __restrict__
653#elif ECB_C99
654 #define ecb_restrict restrict
655#else
656 #define ecb_restrict
657#endif
658
659typedef int ecb_bool;
660
661#define ECB_CONCAT_(a, b) a ## b
662#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
663#define ECB_STRINGIFY_(a) # a
664#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
665
666#define ecb_function_ ecb_inline
667
668#if ECB_GCC_VERSION(3,1)
669 #define ecb_attribute(attrlist) __attribute__(attrlist)
670 #define ecb_is_constant(expr) __builtin_constant_p (expr)
671 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
672 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
673#else
674 #define ecb_attribute(attrlist)
675 #define ecb_is_constant(expr) 0
676 #define ecb_expect(expr,value) (expr)
677 #define ecb_prefetch(addr,rw,locality)
678#endif
679
680/* no emulation for ecb_decltype */
681#if ECB_GCC_VERSION(4,5)
682 #define ecb_decltype(x) __decltype(x)
683#elif ECB_GCC_VERSION(3,0)
684 #define ecb_decltype(x) __typeof(x)
685#endif
686
687#define ecb_noinline ecb_attribute ((__noinline__))
688#define ecb_noreturn ecb_attribute ((__noreturn__))
689#define ecb_unused ecb_attribute ((__unused__))
690#define ecb_const ecb_attribute ((__const__))
691#define ecb_pure ecb_attribute ((__pure__))
692
693#if ECB_GCC_VERSION(4,3)
694 #define ecb_artificial ecb_attribute ((__artificial__))
695 #define ecb_hot ecb_attribute ((__hot__))
696 #define ecb_cold ecb_attribute ((__cold__))
697#else
698 #define ecb_artificial
699 #define ecb_hot
700 #define ecb_cold
701#endif
702
703/* put around conditional expressions if you are very sure that the */
704/* expression is mostly true or mostly false. note that these return */
705/* booleans, not the expression. */
476#define expect_false(expr) expect ((expr) != 0, 0) 706#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 707#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
708/* for compatibility to the rest of the world */
709#define ecb_likely(expr) ecb_expect_true (expr)
710#define ecb_unlikely(expr) ecb_expect_false (expr)
711
712/* count trailing zero bits and count # of one bits */
713#if ECB_GCC_VERSION(3,4)
714 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
715 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
716 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
717 #define ecb_ctz32(x) __builtin_ctz (x)
718 #define ecb_ctz64(x) __builtin_ctzll (x)
719 #define ecb_popcount32(x) __builtin_popcount (x)
720 /* no popcountll */
721#else
722 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
723 ecb_function_ int
724 ecb_ctz32 (uint32_t x)
725 {
726 int r = 0;
727
728 x &= ~x + 1; /* this isolates the lowest bit */
729
730#if ECB_branchless_on_i386
731 r += !!(x & 0xaaaaaaaa) << 0;
732 r += !!(x & 0xcccccccc) << 1;
733 r += !!(x & 0xf0f0f0f0) << 2;
734 r += !!(x & 0xff00ff00) << 3;
735 r += !!(x & 0xffff0000) << 4;
736#else
737 if (x & 0xaaaaaaaa) r += 1;
738 if (x & 0xcccccccc) r += 2;
739 if (x & 0xf0f0f0f0) r += 4;
740 if (x & 0xff00ff00) r += 8;
741 if (x & 0xffff0000) r += 16;
742#endif
743
744 return r;
745 }
746
747 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
748 ecb_function_ int
749 ecb_ctz64 (uint64_t x)
750 {
751 int shift = x & 0xffffffffU ? 0 : 32;
752 return ecb_ctz32 (x >> shift) + shift;
753 }
754
755 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
756 ecb_function_ int
757 ecb_popcount32 (uint32_t x)
758 {
759 x -= (x >> 1) & 0x55555555;
760 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
761 x = ((x >> 4) + x) & 0x0f0f0f0f;
762 x *= 0x01010101;
763
764 return x >> 24;
765 }
766
767 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
768 ecb_function_ int ecb_ld32 (uint32_t x)
769 {
770 int r = 0;
771
772 if (x >> 16) { x >>= 16; r += 16; }
773 if (x >> 8) { x >>= 8; r += 8; }
774 if (x >> 4) { x >>= 4; r += 4; }
775 if (x >> 2) { x >>= 2; r += 2; }
776 if (x >> 1) { r += 1; }
777
778 return r;
779 }
780
781 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
782 ecb_function_ int ecb_ld64 (uint64_t x)
783 {
784 int r = 0;
785
786 if (x >> 32) { x >>= 32; r += 32; }
787
788 return r + ecb_ld32 (x);
789 }
790#endif
791
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
793ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
794{
795 return ( (x * 0x0802U & 0x22110U)
796 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
797}
798
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
800ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
801{
802 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
803 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
804 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
805 x = ( x >> 8 ) | ( x << 8);
806
807 return x;
808}
809
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
811ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
812{
813 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
814 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
815 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
816 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
817 x = ( x >> 16 ) | ( x << 16);
818
819 return x;
820}
821
822/* popcount64 is only available on 64 bit cpus as gcc builtin */
823/* so for this version we are lazy */
824ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
825ecb_function_ int
826ecb_popcount64 (uint64_t x)
827{
828 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
829}
830
831ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
832ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
833ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
834ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
835ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
836ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
837ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
838ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
839
840ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
841ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
842ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
843ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
844ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
845ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
846ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
847ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
848
849#if ECB_GCC_VERSION(4,3)
850 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
851 #define ecb_bswap32(x) __builtin_bswap32 (x)
852 #define ecb_bswap64(x) __builtin_bswap64 (x)
853#else
854 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
855 ecb_function_ uint16_t
856 ecb_bswap16 (uint16_t x)
857 {
858 return ecb_rotl16 (x, 8);
859 }
860
861 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
862 ecb_function_ uint32_t
863 ecb_bswap32 (uint32_t x)
864 {
865 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
866 }
867
868 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
869 ecb_function_ uint64_t
870 ecb_bswap64 (uint64_t x)
871 {
872 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
873 }
874#endif
875
876#if ECB_GCC_VERSION(4,5)
877 #define ecb_unreachable() __builtin_unreachable ()
878#else
879 /* this seems to work fine, but gcc always emits a warning for it :/ */
880 ecb_inline void ecb_unreachable (void) ecb_noreturn;
881 ecb_inline void ecb_unreachable (void) { }
882#endif
883
884/* try to tell the compiler that some condition is definitely true */
885#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
886
887ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
888ecb_inline unsigned char
889ecb_byteorder_helper (void)
890{
891 const uint32_t u = 0x11223344;
892 return *(unsigned char *)&u;
893}
894
895ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
896ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
897ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
898ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
899
900#if ECB_GCC_VERSION(3,0) || ECB_C99
901 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
902#else
903 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
904#endif
905
906#if __cplusplus
907 template<typename T>
908 static inline T ecb_div_rd (T val, T div)
909 {
910 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
911 }
912 template<typename T>
913 static inline T ecb_div_ru (T val, T div)
914 {
915 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
916 }
917#else
918 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
919 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
920#endif
921
922#if ecb_cplusplus_does_not_suck
923 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
924 template<typename T, int N>
925 static inline int ecb_array_length (const T (&arr)[N])
926 {
927 return N;
928 }
929#else
930 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
931#endif
932
933#endif
934
935/* ECB.H END */
936
937#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
938/* if your architecture doesn't need memory fences, e.g. because it is
939 * single-cpu/core, or if you use libev in a project that doesn't use libev
940 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
941 * libev, in which cases the memory fences become nops.
942 * alternatively, you can remove this #error and link against libpthread,
943 * which will then provide the memory fences.
944 */
945# error "memory fences not defined for your architecture, please report"
946#endif
947
948#ifndef ECB_MEMORY_FENCE
949# define ECB_MEMORY_FENCE do { } while (0)
950# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
951# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
952#endif
953
954#define expect_false(cond) ecb_expect_false (cond)
955#define expect_true(cond) ecb_expect_true (cond)
956#define noinline ecb_noinline
957
478#define inline_size static inline 958#define inline_size ecb_inline
479 959
480#if EV_MINIMAL 960#if EV_FEATURE_CODE
961# define inline_speed ecb_inline
962#else
481# define inline_speed static noinline 963# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 964#endif
485 965
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 966#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 967
488#if EV_MINPRI == EV_MAXPRI 968#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 981#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 982#define ev_at(w) ((WT)(w))->at
503 983
504#if EV_USE_REALTIME 984#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 985/* sig_atomic_t is used to avoid per-thread variables or locking but still */
506/* giving it a reasonably high chance of working on typical architetcures */ 986/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 987static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 988#endif
509 989
510#if EV_USE_MONOTONIC 990#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 991static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 1005# include "ev_win32.c"
526#endif 1006#endif
527 1007
528/*****************************************************************************/ 1008/*****************************************************************************/
529 1009
1010/* define a suitable floor function (only used by periodics atm) */
1011
1012#if EV_USE_FLOOR
1013# include <math.h>
1014# define ev_floor(v) floor (v)
1015#else
1016
1017#include <float.h>
1018
1019/* a floor() replacement function, should be independent of ev_tstamp type */
1020static ev_tstamp noinline
1021ev_floor (ev_tstamp v)
1022{
1023 /* the choice of shift factor is not terribly important */
1024#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1025 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1026#else
1027 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1028#endif
1029
1030 /* argument too large for an unsigned long? */
1031 if (expect_false (v >= shift))
1032 {
1033 ev_tstamp f;
1034
1035 if (v == v - 1.)
1036 return v; /* very large number */
1037
1038 f = shift * ev_floor (v * (1. / shift));
1039 return f + ev_floor (v - f);
1040 }
1041
1042 /* special treatment for negative args? */
1043 if (expect_false (v < 0.))
1044 {
1045 ev_tstamp f = -ev_floor (-v);
1046
1047 return f - (f == v ? 0 : 1);
1048 }
1049
1050 /* fits into an unsigned long */
1051 return (unsigned long)v;
1052}
1053
1054#endif
1055
1056/*****************************************************************************/
1057
1058#ifdef __linux
1059# include <sys/utsname.h>
1060#endif
1061
1062static unsigned int noinline ecb_cold
1063ev_linux_version (void)
1064{
1065#ifdef __linux
1066 unsigned int v = 0;
1067 struct utsname buf;
1068 int i;
1069 char *p = buf.release;
1070
1071 if (uname (&buf))
1072 return 0;
1073
1074 for (i = 3+1; --i; )
1075 {
1076 unsigned int c = 0;
1077
1078 for (;;)
1079 {
1080 if (*p >= '0' && *p <= '9')
1081 c = c * 10 + *p++ - '0';
1082 else
1083 {
1084 p += *p == '.';
1085 break;
1086 }
1087 }
1088
1089 v = (v << 8) | c;
1090 }
1091
1092 return v;
1093#else
1094 return 0;
1095#endif
1096}
1097
1098/*****************************************************************************/
1099
530#if EV_AVOID_STDIO 1100#if EV_AVOID_STDIO
531static void noinline 1101static void noinline ecb_cold
532ev_printerr (const char *msg) 1102ev_printerr (const char *msg)
533{ 1103{
534 write (STDERR_FILENO, msg, strlen (msg)); 1104 write (STDERR_FILENO, msg, strlen (msg));
535} 1105}
536#endif 1106#endif
537 1107
538static void (*syserr_cb)(const char *msg); 1108static void (*syserr_cb)(const char *msg);
539 1109
540void 1110void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 1111ev_set_syserr_cb (void (*cb)(const char *msg))
542{ 1112{
543 syserr_cb = cb; 1113 syserr_cb = cb;
544} 1114}
545 1115
546static void noinline 1116static void noinline ecb_cold
547ev_syserr (const char *msg) 1117ev_syserr (const char *msg)
548{ 1118{
549 if (!msg) 1119 if (!msg)
550 msg = "(libev) system error"; 1120 msg = "(libev) system error";
551 1121
552 if (syserr_cb) 1122 if (syserr_cb)
553 syserr_cb (msg); 1123 syserr_cb (msg);
554 else 1124 else
555 { 1125 {
556#if EV_AVOID_STDIO 1126#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 1127 ev_printerr (msg);
560 ev_printerr (": "); 1128 ev_printerr (": ");
561 ev_printerr (err); 1129 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 1130 ev_printerr ("\n");
563#else 1131#else
564 perror (msg); 1132 perror (msg);
565#endif 1133#endif
566 abort (); 1134 abort ();
… …
572{ 1140{
573#if __GLIBC__ 1141#if __GLIBC__
574 return realloc (ptr, size); 1142 return realloc (ptr, size);
575#else 1143#else
576 /* some systems, notably openbsd and darwin, fail to properly 1144 /* some systems, notably openbsd and darwin, fail to properly
577 * implement realloc (x, 0) (as required by both ansi c-98 and 1145 * implement realloc (x, 0) (as required by both ansi c-89 and
578 * the single unix specification, so work around them here. 1146 * the single unix specification, so work around them here.
579 */ 1147 */
580 1148
581 if (size) 1149 if (size)
582 return realloc (ptr, size); 1150 return realloc (ptr, size);
… …
586#endif 1154#endif
587} 1155}
588 1156
589static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1157static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
590 1158
591void 1159void ecb_cold
592ev_set_allocator (void *(*cb)(void *ptr, long size)) 1160ev_set_allocator (void *(*cb)(void *ptr, long size))
593{ 1161{
594 alloc = cb; 1162 alloc = cb;
595} 1163}
596 1164
… …
600 ptr = alloc (ptr, size); 1168 ptr = alloc (ptr, size);
601 1169
602 if (!ptr && size) 1170 if (!ptr && size)
603 { 1171 {
604#if EV_AVOID_STDIO 1172#if EV_AVOID_STDIO
605 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1173 ev_printerr ("(libev) memory allocation failed, aborting.\n");
606#else 1174#else
607 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1175 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
608#endif 1176#endif
609 abort (); 1177 abort ();
610 } 1178 }
611 1179
612 return ptr; 1180 return ptr;
… …
629 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1197 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
630 unsigned char unused; 1198 unsigned char unused;
631#if EV_USE_EPOLL 1199#if EV_USE_EPOLL
632 unsigned int egen; /* generation counter to counter epoll bugs */ 1200 unsigned int egen; /* generation counter to counter epoll bugs */
633#endif 1201#endif
634#if EV_SELECT_IS_WINSOCKET 1202#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
635 SOCKET handle; 1203 SOCKET handle;
1204#endif
1205#if EV_USE_IOCP
1206 OVERLAPPED or, ow;
636#endif 1207#endif
637} ANFD; 1208} ANFD;
638 1209
639/* stores the pending event set for a given watcher */ 1210/* stores the pending event set for a given watcher */
640typedef struct 1211typedef struct
… …
682 #undef VAR 1253 #undef VAR
683 }; 1254 };
684 #include "ev_wrap.h" 1255 #include "ev_wrap.h"
685 1256
686 static struct ev_loop default_loop_struct; 1257 static struct ev_loop default_loop_struct;
687 struct ev_loop *ev_default_loop_ptr; 1258 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
688 1259
689#else 1260#else
690 1261
691 ev_tstamp ev_rt_now; 1262 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
692 #define VAR(name,decl) static decl; 1263 #define VAR(name,decl) static decl;
693 #include "ev_vars.h" 1264 #include "ev_vars.h"
694 #undef VAR 1265 #undef VAR
695 1266
696 static int ev_default_loop_ptr; 1267 static int ev_default_loop_ptr;
697 1268
698#endif 1269#endif
699 1270
700#if EV_MINIMAL < 2 1271#if EV_FEATURE_API
701# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1272# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
702# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1273# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
703# define EV_INVOKE_PENDING invoke_cb (EV_A) 1274# define EV_INVOKE_PENDING invoke_cb (EV_A)
704#else 1275#else
705# define EV_RELEASE_CB (void)0 1276# define EV_RELEASE_CB (void)0
706# define EV_ACQUIRE_CB (void)0 1277# define EV_ACQUIRE_CB (void)0
707# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1278# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
708#endif 1279#endif
709 1280
710#define EVUNLOOP_RECURSE 0x80 1281#define EVBREAK_RECURSE 0x80
711 1282
712/*****************************************************************************/ 1283/*****************************************************************************/
713 1284
714#ifndef EV_HAVE_EV_TIME 1285#ifndef EV_HAVE_EV_TIME
715ev_tstamp 1286ev_tstamp
… …
759 if (delay > 0.) 1330 if (delay > 0.)
760 { 1331 {
761#if EV_USE_NANOSLEEP 1332#if EV_USE_NANOSLEEP
762 struct timespec ts; 1333 struct timespec ts;
763 1334
764 ts.tv_sec = (time_t)delay; 1335 EV_TS_SET (ts, delay);
765 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
766
767 nanosleep (&ts, 0); 1336 nanosleep (&ts, 0);
768#elif defined(_WIN32) 1337#elif defined _WIN32
769 Sleep ((unsigned long)(delay * 1e3)); 1338 Sleep ((unsigned long)(delay * 1e3));
770#else 1339#else
771 struct timeval tv; 1340 struct timeval tv;
772 1341
773 tv.tv_sec = (time_t)delay;
774 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
775
776 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1342 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
777 /* something not guaranteed by newer posix versions, but guaranteed */ 1343 /* something not guaranteed by newer posix versions, but guaranteed */
778 /* by older ones */ 1344 /* by older ones */
1345 EV_TV_SET (tv, delay);
779 select (0, 0, 0, 0, &tv); 1346 select (0, 0, 0, 0, &tv);
780#endif 1347#endif
781 } 1348 }
782} 1349}
783 1350
784/*****************************************************************************/ 1351/*****************************************************************************/
785 1352
786#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1353#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
787 1354
788/* find a suitable new size for the given array, */ 1355/* find a suitable new size for the given array, */
789/* hopefully by rounding to a ncie-to-malloc size */ 1356/* hopefully by rounding to a nice-to-malloc size */
790inline_size int 1357inline_size int
791array_nextsize (int elem, int cur, int cnt) 1358array_nextsize (int elem, int cur, int cnt)
792{ 1359{
793 int ncur = cur + 1; 1360 int ncur = cur + 1;
794 1361
795 do 1362 do
796 ncur <<= 1; 1363 ncur <<= 1;
797 while (cnt > ncur); 1364 while (cnt > ncur);
798 1365
799 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1366 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
800 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1367 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
801 { 1368 {
802 ncur *= elem; 1369 ncur *= elem;
803 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1370 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
804 ncur = ncur - sizeof (void *) * 4; 1371 ncur = ncur - sizeof (void *) * 4;
… …
806 } 1373 }
807 1374
808 return ncur; 1375 return ncur;
809} 1376}
810 1377
811static noinline void * 1378static void * noinline ecb_cold
812array_realloc (int elem, void *base, int *cur, int cnt) 1379array_realloc (int elem, void *base, int *cur, int cnt)
813{ 1380{
814 *cur = array_nextsize (elem, *cur, cnt); 1381 *cur = array_nextsize (elem, *cur, cnt);
815 return ev_realloc (base, elem * *cur); 1382 return ev_realloc (base, elem * *cur);
816} 1383}
… …
819 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1386 memset ((void *)(base), 0, sizeof (*(base)) * (count))
820 1387
821#define array_needsize(type,base,cur,cnt,init) \ 1388#define array_needsize(type,base,cur,cnt,init) \
822 if (expect_false ((cnt) > (cur))) \ 1389 if (expect_false ((cnt) > (cur))) \
823 { \ 1390 { \
824 int ocur_ = (cur); \ 1391 int ecb_unused ocur_ = (cur); \
825 (base) = (type *)array_realloc \ 1392 (base) = (type *)array_realloc \
826 (sizeof (type), (base), &(cur), (cnt)); \ 1393 (sizeof (type), (base), &(cur), (cnt)); \
827 init ((base) + (ocur_), (cur) - ocur_); \ 1394 init ((base) + (ocur_), (cur) - ocur_); \
828 } 1395 }
829 1396
… …
890} 1457}
891 1458
892/*****************************************************************************/ 1459/*****************************************************************************/
893 1460
894inline_speed void 1461inline_speed void
895fd_event_nc (EV_P_ int fd, int revents) 1462fd_event_nocheck (EV_P_ int fd, int revents)
896{ 1463{
897 ANFD *anfd = anfds + fd; 1464 ANFD *anfd = anfds + fd;
898 ev_io *w; 1465 ev_io *w;
899 1466
900 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1467 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
912fd_event (EV_P_ int fd, int revents) 1479fd_event (EV_P_ int fd, int revents)
913{ 1480{
914 ANFD *anfd = anfds + fd; 1481 ANFD *anfd = anfds + fd;
915 1482
916 if (expect_true (!anfd->reify)) 1483 if (expect_true (!anfd->reify))
917 fd_event_nc (EV_A_ fd, revents); 1484 fd_event_nocheck (EV_A_ fd, revents);
918} 1485}
919 1486
920void 1487void
921ev_feed_fd_event (EV_P_ int fd, int revents) 1488ev_feed_fd_event (EV_P_ int fd, int revents)
922{ 1489{
923 if (fd >= 0 && fd < anfdmax) 1490 if (fd >= 0 && fd < anfdmax)
924 fd_event_nc (EV_A_ fd, revents); 1491 fd_event_nocheck (EV_A_ fd, revents);
925} 1492}
926 1493
927/* make sure the external fd watch events are in-sync */ 1494/* make sure the external fd watch events are in-sync */
928/* with the kernel/libev internal state */ 1495/* with the kernel/libev internal state */
929inline_size void 1496inline_size void
930fd_reify (EV_P) 1497fd_reify (EV_P)
931{ 1498{
932 int i; 1499 int i;
933 1500
1501#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1502 for (i = 0; i < fdchangecnt; ++i)
1503 {
1504 int fd = fdchanges [i];
1505 ANFD *anfd = anfds + fd;
1506
1507 if (anfd->reify & EV__IOFDSET && anfd->head)
1508 {
1509 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1510
1511 if (handle != anfd->handle)
1512 {
1513 unsigned long arg;
1514
1515 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1516
1517 /* handle changed, but fd didn't - we need to do it in two steps */
1518 backend_modify (EV_A_ fd, anfd->events, 0);
1519 anfd->events = 0;
1520 anfd->handle = handle;
1521 }
1522 }
1523 }
1524#endif
1525
934 for (i = 0; i < fdchangecnt; ++i) 1526 for (i = 0; i < fdchangecnt; ++i)
935 { 1527 {
936 int fd = fdchanges [i]; 1528 int fd = fdchanges [i];
937 ANFD *anfd = anfds + fd; 1529 ANFD *anfd = anfds + fd;
938 ev_io *w; 1530 ev_io *w;
939 1531
940 unsigned char events = 0; 1532 unsigned char o_events = anfd->events;
1533 unsigned char o_reify = anfd->reify;
941 1534
942 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1535 anfd->reify = 0;
943 events |= (unsigned char)w->events;
944 1536
945#if EV_SELECT_IS_WINSOCKET 1537 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
946 if (events)
947 { 1538 {
948 unsigned long arg; 1539 anfd->events = 0;
949 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1540
950 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1541 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1542 anfd->events |= (unsigned char)w->events;
1543
1544 if (o_events != anfd->events)
1545 o_reify = EV__IOFDSET; /* actually |= */
951 } 1546 }
952#endif
953 1547
954 { 1548 if (o_reify & EV__IOFDSET)
955 unsigned char o_events = anfd->events;
956 unsigned char o_reify = anfd->reify;
957
958 anfd->reify = 0;
959 anfd->events = events;
960
961 if (o_events != events || o_reify & EV__IOFDSET)
962 backend_modify (EV_A_ fd, o_events, events); 1549 backend_modify (EV_A_ fd, o_events, anfd->events);
963 }
964 } 1550 }
965 1551
966 fdchangecnt = 0; 1552 fdchangecnt = 0;
967} 1553}
968 1554
… …
980 fdchanges [fdchangecnt - 1] = fd; 1566 fdchanges [fdchangecnt - 1] = fd;
981 } 1567 }
982} 1568}
983 1569
984/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1570/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
985inline_speed void 1571inline_speed void ecb_cold
986fd_kill (EV_P_ int fd) 1572fd_kill (EV_P_ int fd)
987{ 1573{
988 ev_io *w; 1574 ev_io *w;
989 1575
990 while ((w = (ev_io *)anfds [fd].head)) 1576 while ((w = (ev_io *)anfds [fd].head))
… …
992 ev_io_stop (EV_A_ w); 1578 ev_io_stop (EV_A_ w);
993 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1579 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
994 } 1580 }
995} 1581}
996 1582
997/* check whether the given fd is atcually valid, for error recovery */ 1583/* check whether the given fd is actually valid, for error recovery */
998inline_size int 1584inline_size int ecb_cold
999fd_valid (int fd) 1585fd_valid (int fd)
1000{ 1586{
1001#ifdef _WIN32 1587#ifdef _WIN32
1002 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1588 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1003#else 1589#else
1004 return fcntl (fd, F_GETFD) != -1; 1590 return fcntl (fd, F_GETFD) != -1;
1005#endif 1591#endif
1006} 1592}
1007 1593
1008/* called on EBADF to verify fds */ 1594/* called on EBADF to verify fds */
1009static void noinline 1595static void noinline ecb_cold
1010fd_ebadf (EV_P) 1596fd_ebadf (EV_P)
1011{ 1597{
1012 int fd; 1598 int fd;
1013 1599
1014 for (fd = 0; fd < anfdmax; ++fd) 1600 for (fd = 0; fd < anfdmax; ++fd)
… …
1016 if (!fd_valid (fd) && errno == EBADF) 1602 if (!fd_valid (fd) && errno == EBADF)
1017 fd_kill (EV_A_ fd); 1603 fd_kill (EV_A_ fd);
1018} 1604}
1019 1605
1020/* called on ENOMEM in select/poll to kill some fds and retry */ 1606/* called on ENOMEM in select/poll to kill some fds and retry */
1021static void noinline 1607static void noinline ecb_cold
1022fd_enomem (EV_P) 1608fd_enomem (EV_P)
1023{ 1609{
1024 int fd; 1610 int fd;
1025 1611
1026 for (fd = anfdmax; fd--; ) 1612 for (fd = anfdmax; fd--; )
… …
1044 anfds [fd].emask = 0; 1630 anfds [fd].emask = 0;
1045 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1631 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1046 } 1632 }
1047} 1633}
1048 1634
1635/* used to prepare libev internal fd's */
1636/* this is not fork-safe */
1637inline_speed void
1638fd_intern (int fd)
1639{
1640#ifdef _WIN32
1641 unsigned long arg = 1;
1642 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1643#else
1644 fcntl (fd, F_SETFD, FD_CLOEXEC);
1645 fcntl (fd, F_SETFL, O_NONBLOCK);
1646#endif
1647}
1648
1049/*****************************************************************************/ 1649/*****************************************************************************/
1050 1650
1051/* 1651/*
1052 * the heap functions want a real array index. array index 0 uis guaranteed to not 1652 * the heap functions want a real array index. array index 0 is guaranteed to not
1053 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1653 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1054 * the branching factor of the d-tree. 1654 * the branching factor of the d-tree.
1055 */ 1655 */
1056 1656
1057/* 1657/*
… …
1205 1805
1206static ANSIG signals [EV_NSIG - 1]; 1806static ANSIG signals [EV_NSIG - 1];
1207 1807
1208/*****************************************************************************/ 1808/*****************************************************************************/
1209 1809
1210/* used to prepare libev internal fd's */ 1810#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1211/* this is not fork-safe */
1212inline_speed void
1213fd_intern (int fd)
1214{
1215#ifdef _WIN32
1216 unsigned long arg = 1;
1217 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1218#else
1219 fcntl (fd, F_SETFD, FD_CLOEXEC);
1220 fcntl (fd, F_SETFL, O_NONBLOCK);
1221#endif
1222}
1223 1811
1224static void noinline 1812static void noinline ecb_cold
1225evpipe_init (EV_P) 1813evpipe_init (EV_P)
1226{ 1814{
1227 if (!ev_is_active (&pipe_w)) 1815 if (!ev_is_active (&pipe_w))
1228 { 1816 {
1229#if EV_USE_EVENTFD 1817# if EV_USE_EVENTFD
1230 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1818 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1231 if (evfd < 0 && errno == EINVAL) 1819 if (evfd < 0 && errno == EINVAL)
1232 evfd = eventfd (0, 0); 1820 evfd = eventfd (0, 0);
1233 1821
1234 if (evfd >= 0) 1822 if (evfd >= 0)
… …
1236 evpipe [0] = -1; 1824 evpipe [0] = -1;
1237 fd_intern (evfd); /* doing it twice doesn't hurt */ 1825 fd_intern (evfd); /* doing it twice doesn't hurt */
1238 ev_io_set (&pipe_w, evfd, EV_READ); 1826 ev_io_set (&pipe_w, evfd, EV_READ);
1239 } 1827 }
1240 else 1828 else
1241#endif 1829# endif
1242 { 1830 {
1243 while (pipe (evpipe)) 1831 while (pipe (evpipe))
1244 ev_syserr ("(libev) error creating signal/async pipe"); 1832 ev_syserr ("(libev) error creating signal/async pipe");
1245 1833
1246 fd_intern (evpipe [0]); 1834 fd_intern (evpipe [0]);
… …
1251 ev_io_start (EV_A_ &pipe_w); 1839 ev_io_start (EV_A_ &pipe_w);
1252 ev_unref (EV_A); /* watcher should not keep loop alive */ 1840 ev_unref (EV_A); /* watcher should not keep loop alive */
1253 } 1841 }
1254} 1842}
1255 1843
1256inline_size void 1844inline_speed void
1257evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1845evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1258{ 1846{
1259 if (!*flag) 1847 if (expect_true (*flag))
1848 return;
1849
1850 *flag = 1;
1851
1852 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1853
1854 pipe_write_skipped = 1;
1855
1856 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1857
1858 if (pipe_write_wanted)
1260 { 1859 {
1860 int old_errno;
1861
1862 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1863
1261 int old_errno = errno; /* save errno because write might clobber it */ 1864 old_errno = errno; /* save errno because write will clobber it */
1262
1263 *flag = 1;
1264 1865
1265#if EV_USE_EVENTFD 1866#if EV_USE_EVENTFD
1266 if (evfd >= 0) 1867 if (evfd >= 0)
1267 { 1868 {
1268 uint64_t counter = 1; 1869 uint64_t counter = 1;
1269 write (evfd, &counter, sizeof (uint64_t)); 1870 write (evfd, &counter, sizeof (uint64_t));
1270 } 1871 }
1271 else 1872 else
1272#endif 1873#endif
1874 {
1875 /* win32 people keep sending patches that change this write() to send() */
1876 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1877 /* so when you think this write should be a send instead, please find out */
1878 /* where your send() is from - it's definitely not the microsoft send, and */
1879 /* tell me. thank you. */
1880 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1881 /* check the ev documentation on how to use this flag */
1273 write (evpipe [1], &old_errno, 1); 1882 write (evpipe [1], &(evpipe [1]), 1);
1883 }
1274 1884
1275 errno = old_errno; 1885 errno = old_errno;
1276 } 1886 }
1277} 1887}
1278 1888
… …
1281static void 1891static void
1282pipecb (EV_P_ ev_io *iow, int revents) 1892pipecb (EV_P_ ev_io *iow, int revents)
1283{ 1893{
1284 int i; 1894 int i;
1285 1895
1896 if (revents & EV_READ)
1897 {
1286#if EV_USE_EVENTFD 1898#if EV_USE_EVENTFD
1287 if (evfd >= 0) 1899 if (evfd >= 0)
1288 { 1900 {
1289 uint64_t counter; 1901 uint64_t counter;
1290 read (evfd, &counter, sizeof (uint64_t)); 1902 read (evfd, &counter, sizeof (uint64_t));
1291 } 1903 }
1292 else 1904 else
1293#endif 1905#endif
1294 { 1906 {
1295 char dummy; 1907 char dummy;
1908 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1296 read (evpipe [0], &dummy, 1); 1909 read (evpipe [0], &dummy, 1);
1910 }
1297 } 1911 }
1298 1912
1913 pipe_write_skipped = 0;
1914
1915#if EV_SIGNAL_ENABLE
1299 if (sig_pending) 1916 if (sig_pending)
1300 { 1917 {
1301 sig_pending = 0; 1918 sig_pending = 0;
1302 1919
1303 for (i = EV_NSIG - 1; i--; ) 1920 for (i = EV_NSIG - 1; i--; )
1304 if (expect_false (signals [i].pending)) 1921 if (expect_false (signals [i].pending))
1305 ev_feed_signal_event (EV_A_ i + 1); 1922 ev_feed_signal_event (EV_A_ i + 1);
1306 } 1923 }
1924#endif
1307 1925
1308#if EV_ASYNC_ENABLE 1926#if EV_ASYNC_ENABLE
1309 if (async_pending) 1927 if (async_pending)
1310 { 1928 {
1311 async_pending = 0; 1929 async_pending = 0;
… …
1320#endif 1938#endif
1321} 1939}
1322 1940
1323/*****************************************************************************/ 1941/*****************************************************************************/
1324 1942
1943void
1944ev_feed_signal (int signum)
1945{
1946#if EV_MULTIPLICITY
1947 EV_P = signals [signum - 1].loop;
1948
1949 if (!EV_A)
1950 return;
1951#endif
1952
1953 if (!ev_active (&pipe_w))
1954 return;
1955
1956 signals [signum - 1].pending = 1;
1957 evpipe_write (EV_A_ &sig_pending);
1958}
1959
1325static void 1960static void
1326ev_sighandler (int signum) 1961ev_sighandler (int signum)
1327{ 1962{
1328#if EV_MULTIPLICITY
1329 EV_P = signals [signum - 1].loop;
1330#endif
1331
1332#ifdef _WIN32 1963#ifdef _WIN32
1333 signal (signum, ev_sighandler); 1964 signal (signum, ev_sighandler);
1334#endif 1965#endif
1335 1966
1336 signals [signum - 1].pending = 1; 1967 ev_feed_signal (signum);
1337 evpipe_write (EV_A_ &sig_pending);
1338} 1968}
1339 1969
1340void noinline 1970void noinline
1341ev_feed_signal_event (EV_P_ int signum) 1971ev_feed_signal_event (EV_P_ int signum)
1342{ 1972{
… …
1379 break; 2009 break;
1380 } 2010 }
1381} 2011}
1382#endif 2012#endif
1383 2013
2014#endif
2015
1384/*****************************************************************************/ 2016/*****************************************************************************/
1385 2017
2018#if EV_CHILD_ENABLE
1386static WL childs [EV_PID_HASHSIZE]; 2019static WL childs [EV_PID_HASHSIZE];
1387
1388#ifndef _WIN32
1389 2020
1390static ev_signal childev; 2021static ev_signal childev;
1391 2022
1392#ifndef WIFCONTINUED 2023#ifndef WIFCONTINUED
1393# define WIFCONTINUED(status) 0 2024# define WIFCONTINUED(status) 0
… …
1398child_reap (EV_P_ int chain, int pid, int status) 2029child_reap (EV_P_ int chain, int pid, int status)
1399{ 2030{
1400 ev_child *w; 2031 ev_child *w;
1401 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2032 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1402 2033
1403 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2034 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1404 { 2035 {
1405 if ((w->pid == pid || !w->pid) 2036 if ((w->pid == pid || !w->pid)
1406 && (!traced || (w->flags & 1))) 2037 && (!traced || (w->flags & 1)))
1407 { 2038 {
1408 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2039 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1433 /* make sure we are called again until all children have been reaped */ 2064 /* make sure we are called again until all children have been reaped */
1434 /* we need to do it this way so that the callback gets called before we continue */ 2065 /* we need to do it this way so that the callback gets called before we continue */
1435 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2066 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1436 2067
1437 child_reap (EV_A_ pid, pid, status); 2068 child_reap (EV_A_ pid, pid, status);
1438 if (EV_PID_HASHSIZE > 1) 2069 if ((EV_PID_HASHSIZE) > 1)
1439 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2070 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1440} 2071}
1441 2072
1442#endif 2073#endif
1443 2074
1444/*****************************************************************************/ 2075/*****************************************************************************/
1445 2076
2077#if EV_USE_IOCP
2078# include "ev_iocp.c"
2079#endif
1446#if EV_USE_PORT 2080#if EV_USE_PORT
1447# include "ev_port.c" 2081# include "ev_port.c"
1448#endif 2082#endif
1449#if EV_USE_KQUEUE 2083#if EV_USE_KQUEUE
1450# include "ev_kqueue.c" 2084# include "ev_kqueue.c"
… …
1457#endif 2091#endif
1458#if EV_USE_SELECT 2092#if EV_USE_SELECT
1459# include "ev_select.c" 2093# include "ev_select.c"
1460#endif 2094#endif
1461 2095
1462int 2096int ecb_cold
1463ev_version_major (void) 2097ev_version_major (void)
1464{ 2098{
1465 return EV_VERSION_MAJOR; 2099 return EV_VERSION_MAJOR;
1466} 2100}
1467 2101
1468int 2102int ecb_cold
1469ev_version_minor (void) 2103ev_version_minor (void)
1470{ 2104{
1471 return EV_VERSION_MINOR; 2105 return EV_VERSION_MINOR;
1472} 2106}
1473 2107
1474/* return true if we are running with elevated privileges and should ignore env variables */ 2108/* return true if we are running with elevated privileges and should ignore env variables */
1475int inline_size 2109int inline_size ecb_cold
1476enable_secure (void) 2110enable_secure (void)
1477{ 2111{
1478#ifdef _WIN32 2112#ifdef _WIN32
1479 return 0; 2113 return 0;
1480#else 2114#else
1481 return getuid () != geteuid () 2115 return getuid () != geteuid ()
1482 || getgid () != getegid (); 2116 || getgid () != getegid ();
1483#endif 2117#endif
1484} 2118}
1485 2119
1486unsigned int 2120unsigned int ecb_cold
1487ev_supported_backends (void) 2121ev_supported_backends (void)
1488{ 2122{
1489 unsigned int flags = 0; 2123 unsigned int flags = 0;
1490 2124
1491 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2125 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1495 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2129 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1496 2130
1497 return flags; 2131 return flags;
1498} 2132}
1499 2133
1500unsigned int 2134unsigned int ecb_cold
1501ev_recommended_backends (void) 2135ev_recommended_backends (void)
1502{ 2136{
1503 unsigned int flags = ev_supported_backends (); 2137 unsigned int flags = ev_supported_backends ();
1504 2138
1505#ifndef __NetBSD__ 2139#ifndef __NetBSD__
… …
1510#ifdef __APPLE__ 2144#ifdef __APPLE__
1511 /* only select works correctly on that "unix-certified" platform */ 2145 /* only select works correctly on that "unix-certified" platform */
1512 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2146 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1513 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2147 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1514#endif 2148#endif
2149#ifdef __FreeBSD__
2150 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2151#endif
1515 2152
1516 return flags; 2153 return flags;
1517} 2154}
1518 2155
1519unsigned int 2156unsigned int ecb_cold
1520ev_embeddable_backends (void) 2157ev_embeddable_backends (void)
1521{ 2158{
1522 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2159 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1523 2160
1524 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2161 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1525 /* please fix it and tell me how to detect the fix */ 2162 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1526 flags &= ~EVBACKEND_EPOLL; 2163 flags &= ~EVBACKEND_EPOLL;
1527 2164
1528 return flags; 2165 return flags;
1529} 2166}
1530 2167
1531unsigned int 2168unsigned int
1532ev_backend (EV_P) 2169ev_backend (EV_P)
1533{ 2170{
1534 return backend; 2171 return backend;
1535} 2172}
1536 2173
1537#if EV_MINIMAL < 2 2174#if EV_FEATURE_API
1538unsigned int 2175unsigned int
1539ev_loop_count (EV_P) 2176ev_iteration (EV_P)
1540{ 2177{
1541 return loop_count; 2178 return loop_count;
1542} 2179}
1543 2180
1544unsigned int 2181unsigned int
1545ev_loop_depth (EV_P) 2182ev_depth (EV_P)
1546{ 2183{
1547 return loop_depth; 2184 return loop_depth;
1548} 2185}
1549 2186
1550void 2187void
… …
1569ev_userdata (EV_P) 2206ev_userdata (EV_P)
1570{ 2207{
1571 return userdata; 2208 return userdata;
1572} 2209}
1573 2210
2211void
1574void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2212ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1575{ 2213{
1576 invoke_cb = invoke_pending_cb; 2214 invoke_cb = invoke_pending_cb;
1577} 2215}
1578 2216
2217void
1579void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2218ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1580{ 2219{
1581 release_cb = release; 2220 release_cb = release;
1582 acquire_cb = acquire; 2221 acquire_cb = acquire;
1583} 2222}
1584#endif 2223#endif
1585 2224
1586/* initialise a loop structure, must be zero-initialised */ 2225/* initialise a loop structure, must be zero-initialised */
1587static void noinline 2226static void noinline ecb_cold
1588loop_init (EV_P_ unsigned int flags) 2227loop_init (EV_P_ unsigned int flags)
1589{ 2228{
1590 if (!backend) 2229 if (!backend)
1591 { 2230 {
2231 origflags = flags;
2232
1592#if EV_USE_REALTIME 2233#if EV_USE_REALTIME
1593 if (!have_realtime) 2234 if (!have_realtime)
1594 { 2235 {
1595 struct timespec ts; 2236 struct timespec ts;
1596 2237
… …
1618 if (!(flags & EVFLAG_NOENV) 2259 if (!(flags & EVFLAG_NOENV)
1619 && !enable_secure () 2260 && !enable_secure ()
1620 && getenv ("LIBEV_FLAGS")) 2261 && getenv ("LIBEV_FLAGS"))
1621 flags = atoi (getenv ("LIBEV_FLAGS")); 2262 flags = atoi (getenv ("LIBEV_FLAGS"));
1622 2263
1623 ev_rt_now = ev_time (); 2264 ev_rt_now = ev_time ();
1624 mn_now = get_clock (); 2265 mn_now = get_clock ();
1625 now_floor = mn_now; 2266 now_floor = mn_now;
1626 rtmn_diff = ev_rt_now - mn_now; 2267 rtmn_diff = ev_rt_now - mn_now;
1627#if EV_MINIMAL < 2 2268#if EV_FEATURE_API
1628 invoke_cb = ev_invoke_pending; 2269 invoke_cb = ev_invoke_pending;
1629#endif 2270#endif
1630 2271
1631 io_blocktime = 0.; 2272 io_blocktime = 0.;
1632 timeout_blocktime = 0.; 2273 timeout_blocktime = 0.;
1633 backend = 0; 2274 backend = 0;
1634 backend_fd = -1; 2275 backend_fd = -1;
1635 sig_pending = 0; 2276 sig_pending = 0;
1636#if EV_ASYNC_ENABLE 2277#if EV_ASYNC_ENABLE
1637 async_pending = 0; 2278 async_pending = 0;
1638#endif 2279#endif
2280 pipe_write_skipped = 0;
2281 pipe_write_wanted = 0;
1639#if EV_USE_INOTIFY 2282#if EV_USE_INOTIFY
1640 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2283 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1641#endif 2284#endif
1642#if EV_USE_SIGNALFD 2285#if EV_USE_SIGNALFD
1643 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2286 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1644#endif 2287#endif
1645 2288
1646 if (!(flags & 0x0000ffffU)) 2289 if (!(flags & EVBACKEND_MASK))
1647 flags |= ev_recommended_backends (); 2290 flags |= ev_recommended_backends ();
1648 2291
2292#if EV_USE_IOCP
2293 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2294#endif
1649#if EV_USE_PORT 2295#if EV_USE_PORT
1650 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2296 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1651#endif 2297#endif
1652#if EV_USE_KQUEUE 2298#if EV_USE_KQUEUE
1653 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2299 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1662 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2308 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1663#endif 2309#endif
1664 2310
1665 ev_prepare_init (&pending_w, pendingcb); 2311 ev_prepare_init (&pending_w, pendingcb);
1666 2312
2313#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1667 ev_init (&pipe_w, pipecb); 2314 ev_init (&pipe_w, pipecb);
1668 ev_set_priority (&pipe_w, EV_MAXPRI); 2315 ev_set_priority (&pipe_w, EV_MAXPRI);
2316#endif
1669 } 2317 }
1670} 2318}
1671 2319
1672/* free up a loop structure */ 2320/* free up a loop structure */
1673static void noinline 2321void ecb_cold
1674loop_destroy (EV_P) 2322ev_loop_destroy (EV_P)
1675{ 2323{
1676 int i; 2324 int i;
2325
2326#if EV_MULTIPLICITY
2327 /* mimic free (0) */
2328 if (!EV_A)
2329 return;
2330#endif
2331
2332#if EV_CLEANUP_ENABLE
2333 /* queue cleanup watchers (and execute them) */
2334 if (expect_false (cleanupcnt))
2335 {
2336 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2337 EV_INVOKE_PENDING;
2338 }
2339#endif
2340
2341#if EV_CHILD_ENABLE
2342 if (ev_is_active (&childev))
2343 {
2344 ev_ref (EV_A); /* child watcher */
2345 ev_signal_stop (EV_A_ &childev);
2346 }
2347#endif
1677 2348
1678 if (ev_is_active (&pipe_w)) 2349 if (ev_is_active (&pipe_w))
1679 { 2350 {
1680 /*ev_ref (EV_A);*/ 2351 /*ev_ref (EV_A);*/
1681 /*ev_io_stop (EV_A_ &pipe_w);*/ 2352 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1703#endif 2374#endif
1704 2375
1705 if (backend_fd >= 0) 2376 if (backend_fd >= 0)
1706 close (backend_fd); 2377 close (backend_fd);
1707 2378
2379#if EV_USE_IOCP
2380 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2381#endif
1708#if EV_USE_PORT 2382#if EV_USE_PORT
1709 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2383 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1710#endif 2384#endif
1711#if EV_USE_KQUEUE 2385#if EV_USE_KQUEUE
1712 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2386 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1739 array_free (periodic, EMPTY); 2413 array_free (periodic, EMPTY);
1740#endif 2414#endif
1741#if EV_FORK_ENABLE 2415#if EV_FORK_ENABLE
1742 array_free (fork, EMPTY); 2416 array_free (fork, EMPTY);
1743#endif 2417#endif
2418#if EV_CLEANUP_ENABLE
2419 array_free (cleanup, EMPTY);
2420#endif
1744 array_free (prepare, EMPTY); 2421 array_free (prepare, EMPTY);
1745 array_free (check, EMPTY); 2422 array_free (check, EMPTY);
1746#if EV_ASYNC_ENABLE 2423#if EV_ASYNC_ENABLE
1747 array_free (async, EMPTY); 2424 array_free (async, EMPTY);
1748#endif 2425#endif
1749 2426
1750 backend = 0; 2427 backend = 0;
2428
2429#if EV_MULTIPLICITY
2430 if (ev_is_default_loop (EV_A))
2431#endif
2432 ev_default_loop_ptr = 0;
2433#if EV_MULTIPLICITY
2434 else
2435 ev_free (EV_A);
2436#endif
1751} 2437}
1752 2438
1753#if EV_USE_INOTIFY 2439#if EV_USE_INOTIFY
1754inline_size void infy_fork (EV_P); 2440inline_size void infy_fork (EV_P);
1755#endif 2441#endif
… …
1770 infy_fork (EV_A); 2456 infy_fork (EV_A);
1771#endif 2457#endif
1772 2458
1773 if (ev_is_active (&pipe_w)) 2459 if (ev_is_active (&pipe_w))
1774 { 2460 {
1775 /* this "locks" the handlers against writing to the pipe */ 2461 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1776 /* while we modify the fd vars */
1777 sig_pending = 1;
1778#if EV_ASYNC_ENABLE
1779 async_pending = 1;
1780#endif
1781 2462
1782 ev_ref (EV_A); 2463 ev_ref (EV_A);
1783 ev_io_stop (EV_A_ &pipe_w); 2464 ev_io_stop (EV_A_ &pipe_w);
1784 2465
1785#if EV_USE_EVENTFD 2466#if EV_USE_EVENTFD
… …
1791 { 2472 {
1792 EV_WIN32_CLOSE_FD (evpipe [0]); 2473 EV_WIN32_CLOSE_FD (evpipe [0]);
1793 EV_WIN32_CLOSE_FD (evpipe [1]); 2474 EV_WIN32_CLOSE_FD (evpipe [1]);
1794 } 2475 }
1795 2476
2477#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1796 evpipe_init (EV_A); 2478 evpipe_init (EV_A);
1797 /* now iterate over everything, in case we missed something */ 2479 /* now iterate over everything, in case we missed something */
1798 pipecb (EV_A_ &pipe_w, EV_READ); 2480 pipecb (EV_A_ &pipe_w, EV_READ);
2481#endif
1799 } 2482 }
1800 2483
1801 postfork = 0; 2484 postfork = 0;
1802} 2485}
1803 2486
1804#if EV_MULTIPLICITY 2487#if EV_MULTIPLICITY
1805 2488
1806struct ev_loop * 2489struct ev_loop * ecb_cold
1807ev_loop_new (unsigned int flags) 2490ev_loop_new (unsigned int flags)
1808{ 2491{
1809 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2492 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1810 2493
1811 memset (EV_A, 0, sizeof (struct ev_loop)); 2494 memset (EV_A, 0, sizeof (struct ev_loop));
1812 loop_init (EV_A_ flags); 2495 loop_init (EV_A_ flags);
1813 2496
1814 if (ev_backend (EV_A)) 2497 if (ev_backend (EV_A))
1815 return EV_A; 2498 return EV_A;
1816 2499
2500 ev_free (EV_A);
1817 return 0; 2501 return 0;
1818} 2502}
1819 2503
1820void
1821ev_loop_destroy (EV_P)
1822{
1823 loop_destroy (EV_A);
1824 ev_free (loop);
1825}
1826
1827void
1828ev_loop_fork (EV_P)
1829{
1830 postfork = 1; /* must be in line with ev_default_fork */
1831}
1832#endif /* multiplicity */ 2504#endif /* multiplicity */
1833 2505
1834#if EV_VERIFY 2506#if EV_VERIFY
1835static void noinline 2507static void noinline ecb_cold
1836verify_watcher (EV_P_ W w) 2508verify_watcher (EV_P_ W w)
1837{ 2509{
1838 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2510 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1839 2511
1840 if (w->pending) 2512 if (w->pending)
1841 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2513 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1842} 2514}
1843 2515
1844static void noinline 2516static void noinline ecb_cold
1845verify_heap (EV_P_ ANHE *heap, int N) 2517verify_heap (EV_P_ ANHE *heap, int N)
1846{ 2518{
1847 int i; 2519 int i;
1848 2520
1849 for (i = HEAP0; i < N + HEAP0; ++i) 2521 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1854 2526
1855 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2527 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1856 } 2528 }
1857} 2529}
1858 2530
1859static void noinline 2531static void noinline ecb_cold
1860array_verify (EV_P_ W *ws, int cnt) 2532array_verify (EV_P_ W *ws, int cnt)
1861{ 2533{
1862 while (cnt--) 2534 while (cnt--)
1863 { 2535 {
1864 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2536 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1865 verify_watcher (EV_A_ ws [cnt]); 2537 verify_watcher (EV_A_ ws [cnt]);
1866 } 2538 }
1867} 2539}
1868#endif 2540#endif
1869 2541
1870#if EV_MINIMAL < 2 2542#if EV_FEATURE_API
1871void 2543void ecb_cold
1872ev_loop_verify (EV_P) 2544ev_verify (EV_P)
1873{ 2545{
1874#if EV_VERIFY 2546#if EV_VERIFY
1875 int i; 2547 int i;
1876 WL w; 2548 WL w;
1877 2549
… …
1911#if EV_FORK_ENABLE 2583#if EV_FORK_ENABLE
1912 assert (forkmax >= forkcnt); 2584 assert (forkmax >= forkcnt);
1913 array_verify (EV_A_ (W *)forks, forkcnt); 2585 array_verify (EV_A_ (W *)forks, forkcnt);
1914#endif 2586#endif
1915 2587
2588#if EV_CLEANUP_ENABLE
2589 assert (cleanupmax >= cleanupcnt);
2590 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2591#endif
2592
1916#if EV_ASYNC_ENABLE 2593#if EV_ASYNC_ENABLE
1917 assert (asyncmax >= asynccnt); 2594 assert (asyncmax >= asynccnt);
1918 array_verify (EV_A_ (W *)asyncs, asynccnt); 2595 array_verify (EV_A_ (W *)asyncs, asynccnt);
1919#endif 2596#endif
1920 2597
2598#if EV_PREPARE_ENABLE
1921 assert (preparemax >= preparecnt); 2599 assert (preparemax >= preparecnt);
1922 array_verify (EV_A_ (W *)prepares, preparecnt); 2600 array_verify (EV_A_ (W *)prepares, preparecnt);
2601#endif
1923 2602
2603#if EV_CHECK_ENABLE
1924 assert (checkmax >= checkcnt); 2604 assert (checkmax >= checkcnt);
1925 array_verify (EV_A_ (W *)checks, checkcnt); 2605 array_verify (EV_A_ (W *)checks, checkcnt);
2606#endif
1926 2607
1927# if 0 2608# if 0
2609#if EV_CHILD_ENABLE
1928 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2610 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1929 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2611 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2612#endif
1930# endif 2613# endif
1931#endif 2614#endif
1932} 2615}
1933#endif 2616#endif
1934 2617
1935#if EV_MULTIPLICITY 2618#if EV_MULTIPLICITY
1936struct ev_loop * 2619struct ev_loop * ecb_cold
1937ev_default_loop_init (unsigned int flags)
1938#else 2620#else
1939int 2621int
2622#endif
1940ev_default_loop (unsigned int flags) 2623ev_default_loop (unsigned int flags)
1941#endif
1942{ 2624{
1943 if (!ev_default_loop_ptr) 2625 if (!ev_default_loop_ptr)
1944 { 2626 {
1945#if EV_MULTIPLICITY 2627#if EV_MULTIPLICITY
1946 EV_P = ev_default_loop_ptr = &default_loop_struct; 2628 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1950 2632
1951 loop_init (EV_A_ flags); 2633 loop_init (EV_A_ flags);
1952 2634
1953 if (ev_backend (EV_A)) 2635 if (ev_backend (EV_A))
1954 { 2636 {
1955#ifndef _WIN32 2637#if EV_CHILD_ENABLE
1956 ev_signal_init (&childev, childcb, SIGCHLD); 2638 ev_signal_init (&childev, childcb, SIGCHLD);
1957 ev_set_priority (&childev, EV_MAXPRI); 2639 ev_set_priority (&childev, EV_MAXPRI);
1958 ev_signal_start (EV_A_ &childev); 2640 ev_signal_start (EV_A_ &childev);
1959 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2641 ev_unref (EV_A); /* child watcher should not keep loop alive */
1960#endif 2642#endif
… …
1965 2647
1966 return ev_default_loop_ptr; 2648 return ev_default_loop_ptr;
1967} 2649}
1968 2650
1969void 2651void
1970ev_default_destroy (void) 2652ev_loop_fork (EV_P)
1971{ 2653{
1972#if EV_MULTIPLICITY
1973 EV_P = ev_default_loop_ptr;
1974#endif
1975
1976 ev_default_loop_ptr = 0;
1977
1978#ifndef _WIN32
1979 ev_ref (EV_A); /* child watcher */
1980 ev_signal_stop (EV_A_ &childev);
1981#endif
1982
1983 loop_destroy (EV_A);
1984}
1985
1986void
1987ev_default_fork (void)
1988{
1989#if EV_MULTIPLICITY
1990 EV_P = ev_default_loop_ptr;
1991#endif
1992
1993 postfork = 1; /* must be in line with ev_loop_fork */ 2654 postfork = 1; /* must be in line with ev_default_fork */
1994} 2655}
1995 2656
1996/*****************************************************************************/ 2657/*****************************************************************************/
1997 2658
1998void 2659void
… …
2020 2681
2021 for (pri = NUMPRI; pri--; ) 2682 for (pri = NUMPRI; pri--; )
2022 while (pendingcnt [pri]) 2683 while (pendingcnt [pri])
2023 { 2684 {
2024 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2685 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2025
2026 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2027 /* ^ this is no longer true, as pending_w could be here */
2028 2686
2029 p->w->pending = 0; 2687 p->w->pending = 0;
2030 EV_CB_INVOKE (p->w, p->events); 2688 EV_CB_INVOKE (p->w, p->events);
2031 EV_FREQUENT_CHECK; 2689 EV_FREQUENT_CHECK;
2032 } 2690 }
… …
2089 EV_FREQUENT_CHECK; 2747 EV_FREQUENT_CHECK;
2090 feed_reverse (EV_A_ (W)w); 2748 feed_reverse (EV_A_ (W)w);
2091 } 2749 }
2092 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2750 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2093 2751
2094 feed_reverse_done (EV_A_ EV_TIMEOUT); 2752 feed_reverse_done (EV_A_ EV_TIMER);
2095 } 2753 }
2096} 2754}
2097 2755
2098#if EV_PERIODIC_ENABLE 2756#if EV_PERIODIC_ENABLE
2757
2758static void noinline
2759periodic_recalc (EV_P_ ev_periodic *w)
2760{
2761 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2762 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2763
2764 /* the above almost always errs on the low side */
2765 while (at <= ev_rt_now)
2766 {
2767 ev_tstamp nat = at + w->interval;
2768
2769 /* when resolution fails us, we use ev_rt_now */
2770 if (expect_false (nat == at))
2771 {
2772 at = ev_rt_now;
2773 break;
2774 }
2775
2776 at = nat;
2777 }
2778
2779 ev_at (w) = at;
2780}
2781
2099/* make periodics pending */ 2782/* make periodics pending */
2100inline_size void 2783inline_size void
2101periodics_reify (EV_P) 2784periodics_reify (EV_P)
2102{ 2785{
2103 EV_FREQUENT_CHECK; 2786 EV_FREQUENT_CHECK;
… …
2122 ANHE_at_cache (periodics [HEAP0]); 2805 ANHE_at_cache (periodics [HEAP0]);
2123 downheap (periodics, periodiccnt, HEAP0); 2806 downheap (periodics, periodiccnt, HEAP0);
2124 } 2807 }
2125 else if (w->interval) 2808 else if (w->interval)
2126 { 2809 {
2127 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2810 periodic_recalc (EV_A_ w);
2128 /* if next trigger time is not sufficiently in the future, put it there */
2129 /* this might happen because of floating point inexactness */
2130 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2131 {
2132 ev_at (w) += w->interval;
2133
2134 /* if interval is unreasonably low we might still have a time in the past */
2135 /* so correct this. this will make the periodic very inexact, but the user */
2136 /* has effectively asked to get triggered more often than possible */
2137 if (ev_at (w) < ev_rt_now)
2138 ev_at (w) = ev_rt_now;
2139 }
2140
2141 ANHE_at_cache (periodics [HEAP0]); 2811 ANHE_at_cache (periodics [HEAP0]);
2142 downheap (periodics, periodiccnt, HEAP0); 2812 downheap (periodics, periodiccnt, HEAP0);
2143 } 2813 }
2144 else 2814 else
2145 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2815 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2152 feed_reverse_done (EV_A_ EV_PERIODIC); 2822 feed_reverse_done (EV_A_ EV_PERIODIC);
2153 } 2823 }
2154} 2824}
2155 2825
2156/* simply recalculate all periodics */ 2826/* simply recalculate all periodics */
2157/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2827/* TODO: maybe ensure that at least one event happens when jumping forward? */
2158static void noinline 2828static void noinline ecb_cold
2159periodics_reschedule (EV_P) 2829periodics_reschedule (EV_P)
2160{ 2830{
2161 int i; 2831 int i;
2162 2832
2163 /* adjust periodics after time jump */ 2833 /* adjust periodics after time jump */
… …
2166 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2836 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2167 2837
2168 if (w->reschedule_cb) 2838 if (w->reschedule_cb)
2169 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2839 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2170 else if (w->interval) 2840 else if (w->interval)
2171 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2841 periodic_recalc (EV_A_ w);
2172 2842
2173 ANHE_at_cache (periodics [i]); 2843 ANHE_at_cache (periodics [i]);
2174 } 2844 }
2175 2845
2176 reheap (periodics, periodiccnt); 2846 reheap (periodics, periodiccnt);
2177} 2847}
2178#endif 2848#endif
2179 2849
2180/* adjust all timers by a given offset */ 2850/* adjust all timers by a given offset */
2181static void noinline 2851static void noinline ecb_cold
2182timers_reschedule (EV_P_ ev_tstamp adjust) 2852timers_reschedule (EV_P_ ev_tstamp adjust)
2183{ 2853{
2184 int i; 2854 int i;
2185 2855
2186 for (i = 0; i < timercnt; ++i) 2856 for (i = 0; i < timercnt; ++i)
… …
2223 * doesn't hurt either as we only do this on time-jumps or 2893 * doesn't hurt either as we only do this on time-jumps or
2224 * in the unlikely event of having been preempted here. 2894 * in the unlikely event of having been preempted here.
2225 */ 2895 */
2226 for (i = 4; --i; ) 2896 for (i = 4; --i; )
2227 { 2897 {
2898 ev_tstamp diff;
2228 rtmn_diff = ev_rt_now - mn_now; 2899 rtmn_diff = ev_rt_now - mn_now;
2229 2900
2901 diff = odiff - rtmn_diff;
2902
2230 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2903 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2231 return; /* all is well */ 2904 return; /* all is well */
2232 2905
2233 ev_rt_now = ev_time (); 2906 ev_rt_now = ev_time ();
2234 mn_now = get_clock (); 2907 mn_now = get_clock ();
2235 now_floor = mn_now; 2908 now_floor = mn_now;
… …
2257 2930
2258 mn_now = ev_rt_now; 2931 mn_now = ev_rt_now;
2259 } 2932 }
2260} 2933}
2261 2934
2262void 2935int
2263ev_loop (EV_P_ int flags) 2936ev_run (EV_P_ int flags)
2264{ 2937{
2265#if EV_MINIMAL < 2 2938#if EV_FEATURE_API
2266 ++loop_depth; 2939 ++loop_depth;
2267#endif 2940#endif
2268 2941
2269 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2942 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2270 2943
2271 loop_done = EVUNLOOP_CANCEL; 2944 loop_done = EVBREAK_CANCEL;
2272 2945
2273 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2946 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2274 2947
2275 do 2948 do
2276 { 2949 {
2277#if EV_VERIFY >= 2 2950#if EV_VERIFY >= 2
2278 ev_loop_verify (EV_A); 2951 ev_verify (EV_A);
2279#endif 2952#endif
2280 2953
2281#ifndef _WIN32 2954#ifndef _WIN32
2282 if (expect_false (curpid)) /* penalise the forking check even more */ 2955 if (expect_false (curpid)) /* penalise the forking check even more */
2283 if (expect_false (getpid () != curpid)) 2956 if (expect_false (getpid () != curpid))
… …
2295 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2968 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2296 EV_INVOKE_PENDING; 2969 EV_INVOKE_PENDING;
2297 } 2970 }
2298#endif 2971#endif
2299 2972
2973#if EV_PREPARE_ENABLE
2300 /* queue prepare watchers (and execute them) */ 2974 /* queue prepare watchers (and execute them) */
2301 if (expect_false (preparecnt)) 2975 if (expect_false (preparecnt))
2302 { 2976 {
2303 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2977 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2304 EV_INVOKE_PENDING; 2978 EV_INVOKE_PENDING;
2305 } 2979 }
2980#endif
2306 2981
2307 if (expect_false (loop_done)) 2982 if (expect_false (loop_done))
2308 break; 2983 break;
2309 2984
2310 /* we might have forked, so reify kernel state if necessary */ 2985 /* we might have forked, so reify kernel state if necessary */
… …
2317 /* calculate blocking time */ 2992 /* calculate blocking time */
2318 { 2993 {
2319 ev_tstamp waittime = 0.; 2994 ev_tstamp waittime = 0.;
2320 ev_tstamp sleeptime = 0.; 2995 ev_tstamp sleeptime = 0.;
2321 2996
2997 /* remember old timestamp for io_blocktime calculation */
2998 ev_tstamp prev_mn_now = mn_now;
2999
3000 /* update time to cancel out callback processing overhead */
3001 time_update (EV_A_ 1e100);
3002
3003 /* from now on, we want a pipe-wake-up */
3004 pipe_write_wanted = 1;
3005
3006 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3007
2322 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3008 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2323 { 3009 {
2324 /* remember old timestamp for io_blocktime calculation */
2325 ev_tstamp prev_mn_now = mn_now;
2326
2327 /* update time to cancel out callback processing overhead */
2328 time_update (EV_A_ 1e100);
2329
2330 waittime = MAX_BLOCKTIME; 3010 waittime = MAX_BLOCKTIME;
2331 3011
2332 if (timercnt) 3012 if (timercnt)
2333 { 3013 {
2334 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3014 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2335 if (waittime > to) waittime = to; 3015 if (waittime > to) waittime = to;
2336 } 3016 }
2337 3017
2338#if EV_PERIODIC_ENABLE 3018#if EV_PERIODIC_ENABLE
2339 if (periodiccnt) 3019 if (periodiccnt)
2340 { 3020 {
2341 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3021 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2342 if (waittime > to) waittime = to; 3022 if (waittime > to) waittime = to;
2343 } 3023 }
2344#endif 3024#endif
2345 3025
2346 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3026 /* don't let timeouts decrease the waittime below timeout_blocktime */
2347 if (expect_false (waittime < timeout_blocktime)) 3027 if (expect_false (waittime < timeout_blocktime))
2348 waittime = timeout_blocktime; 3028 waittime = timeout_blocktime;
3029
3030 /* at this point, we NEED to wait, so we have to ensure */
3031 /* to pass a minimum nonzero value to the backend */
3032 if (expect_false (waittime < backend_mintime))
3033 waittime = backend_mintime;
2349 3034
2350 /* extra check because io_blocktime is commonly 0 */ 3035 /* extra check because io_blocktime is commonly 0 */
2351 if (expect_false (io_blocktime)) 3036 if (expect_false (io_blocktime))
2352 { 3037 {
2353 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3038 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2354 3039
2355 if (sleeptime > waittime - backend_fudge) 3040 if (sleeptime > waittime - backend_mintime)
2356 sleeptime = waittime - backend_fudge; 3041 sleeptime = waittime - backend_mintime;
2357 3042
2358 if (expect_true (sleeptime > 0.)) 3043 if (expect_true (sleeptime > 0.))
2359 { 3044 {
2360 ev_sleep (sleeptime); 3045 ev_sleep (sleeptime);
2361 waittime -= sleeptime; 3046 waittime -= sleeptime;
2362 } 3047 }
2363 } 3048 }
2364 } 3049 }
2365 3050
2366#if EV_MINIMAL < 2 3051#if EV_FEATURE_API
2367 ++loop_count; 3052 ++loop_count;
2368#endif 3053#endif
2369 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3054 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2370 backend_poll (EV_A_ waittime); 3055 backend_poll (EV_A_ waittime);
2371 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3056 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3057
3058 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3059
3060 if (pipe_write_skipped)
3061 {
3062 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3063 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3064 }
3065
2372 3066
2373 /* update ev_rt_now, do magic */ 3067 /* update ev_rt_now, do magic */
2374 time_update (EV_A_ waittime + sleeptime); 3068 time_update (EV_A_ waittime + sleeptime);
2375 } 3069 }
2376 3070
… …
2383#if EV_IDLE_ENABLE 3077#if EV_IDLE_ENABLE
2384 /* queue idle watchers unless other events are pending */ 3078 /* queue idle watchers unless other events are pending */
2385 idle_reify (EV_A); 3079 idle_reify (EV_A);
2386#endif 3080#endif
2387 3081
3082#if EV_CHECK_ENABLE
2388 /* queue check watchers, to be executed first */ 3083 /* queue check watchers, to be executed first */
2389 if (expect_false (checkcnt)) 3084 if (expect_false (checkcnt))
2390 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3085 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3086#endif
2391 3087
2392 EV_INVOKE_PENDING; 3088 EV_INVOKE_PENDING;
2393 } 3089 }
2394 while (expect_true ( 3090 while (expect_true (
2395 activecnt 3091 activecnt
2396 && !loop_done 3092 && !loop_done
2397 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3093 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2398 )); 3094 ));
2399 3095
2400 if (loop_done == EVUNLOOP_ONE) 3096 if (loop_done == EVBREAK_ONE)
2401 loop_done = EVUNLOOP_CANCEL; 3097 loop_done = EVBREAK_CANCEL;
2402 3098
2403#if EV_MINIMAL < 2 3099#if EV_FEATURE_API
2404 --loop_depth; 3100 --loop_depth;
2405#endif 3101#endif
3102
3103 return activecnt;
2406} 3104}
2407 3105
2408void 3106void
2409ev_unloop (EV_P_ int how) 3107ev_break (EV_P_ int how)
2410{ 3108{
2411 loop_done = how; 3109 loop_done = how;
2412} 3110}
2413 3111
2414void 3112void
… …
2562 EV_FREQUENT_CHECK; 3260 EV_FREQUENT_CHECK;
2563 3261
2564 wlist_del (&anfds[w->fd].head, (WL)w); 3262 wlist_del (&anfds[w->fd].head, (WL)w);
2565 ev_stop (EV_A_ (W)w); 3263 ev_stop (EV_A_ (W)w);
2566 3264
2567 fd_change (EV_A_ w->fd, 1); 3265 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2568 3266
2569 EV_FREQUENT_CHECK; 3267 EV_FREQUENT_CHECK;
2570} 3268}
2571 3269
2572void noinline 3270void noinline
… …
2625 3323
2626void noinline 3324void noinline
2627ev_timer_again (EV_P_ ev_timer *w) 3325ev_timer_again (EV_P_ ev_timer *w)
2628{ 3326{
2629 EV_FREQUENT_CHECK; 3327 EV_FREQUENT_CHECK;
3328
3329 clear_pending (EV_A_ (W)w);
2630 3330
2631 if (ev_is_active (w)) 3331 if (ev_is_active (w))
2632 { 3332 {
2633 if (w->repeat) 3333 if (w->repeat)
2634 { 3334 {
… …
2664 if (w->reschedule_cb) 3364 if (w->reschedule_cb)
2665 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3365 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2666 else if (w->interval) 3366 else if (w->interval)
2667 { 3367 {
2668 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3368 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2669 /* this formula differs from the one in periodic_reify because we do not always round up */ 3369 periodic_recalc (EV_A_ w);
2670 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2671 } 3370 }
2672 else 3371 else
2673 ev_at (w) = w->offset; 3372 ev_at (w) = w->offset;
2674 3373
2675 EV_FREQUENT_CHECK; 3374 EV_FREQUENT_CHECK;
… …
2724#endif 3423#endif
2725 3424
2726#ifndef SA_RESTART 3425#ifndef SA_RESTART
2727# define SA_RESTART 0 3426# define SA_RESTART 0
2728#endif 3427#endif
3428
3429#if EV_SIGNAL_ENABLE
2729 3430
2730void noinline 3431void noinline
2731ev_signal_start (EV_P_ ev_signal *w) 3432ev_signal_start (EV_P_ ev_signal *w)
2732{ 3433{
2733 if (expect_false (ev_is_active (w))) 3434 if (expect_false (ev_is_active (w)))
… …
2794 sa.sa_handler = ev_sighandler; 3495 sa.sa_handler = ev_sighandler;
2795 sigfillset (&sa.sa_mask); 3496 sigfillset (&sa.sa_mask);
2796 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3497 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2797 sigaction (w->signum, &sa, 0); 3498 sigaction (w->signum, &sa, 0);
2798 3499
3500 if (origflags & EVFLAG_NOSIGMASK)
3501 {
2799 sigemptyset (&sa.sa_mask); 3502 sigemptyset (&sa.sa_mask);
2800 sigaddset (&sa.sa_mask, w->signum); 3503 sigaddset (&sa.sa_mask, w->signum);
2801 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3504 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3505 }
2802#endif 3506#endif
2803 } 3507 }
2804 3508
2805 EV_FREQUENT_CHECK; 3509 EV_FREQUENT_CHECK;
2806} 3510}
… …
2840 } 3544 }
2841 3545
2842 EV_FREQUENT_CHECK; 3546 EV_FREQUENT_CHECK;
2843} 3547}
2844 3548
3549#endif
3550
3551#if EV_CHILD_ENABLE
3552
2845void 3553void
2846ev_child_start (EV_P_ ev_child *w) 3554ev_child_start (EV_P_ ev_child *w)
2847{ 3555{
2848#if EV_MULTIPLICITY 3556#if EV_MULTIPLICITY
2849 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3557 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2852 return; 3560 return;
2853 3561
2854 EV_FREQUENT_CHECK; 3562 EV_FREQUENT_CHECK;
2855 3563
2856 ev_start (EV_A_ (W)w, 1); 3564 ev_start (EV_A_ (W)w, 1);
2857 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3565 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2858 3566
2859 EV_FREQUENT_CHECK; 3567 EV_FREQUENT_CHECK;
2860} 3568}
2861 3569
2862void 3570void
… …
2866 if (expect_false (!ev_is_active (w))) 3574 if (expect_false (!ev_is_active (w)))
2867 return; 3575 return;
2868 3576
2869 EV_FREQUENT_CHECK; 3577 EV_FREQUENT_CHECK;
2870 3578
2871 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3579 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2872 ev_stop (EV_A_ (W)w); 3580 ev_stop (EV_A_ (W)w);
2873 3581
2874 EV_FREQUENT_CHECK; 3582 EV_FREQUENT_CHECK;
2875} 3583}
3584
3585#endif
2876 3586
2877#if EV_STAT_ENABLE 3587#if EV_STAT_ENABLE
2878 3588
2879# ifdef _WIN32 3589# ifdef _WIN32
2880# undef lstat 3590# undef lstat
… …
2941 if (!pend || pend == path) 3651 if (!pend || pend == path)
2942 break; 3652 break;
2943 3653
2944 *pend = 0; 3654 *pend = 0;
2945 w->wd = inotify_add_watch (fs_fd, path, mask); 3655 w->wd = inotify_add_watch (fs_fd, path, mask);
2946 } 3656 }
2947 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3657 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2948 } 3658 }
2949 } 3659 }
2950 3660
2951 if (w->wd >= 0) 3661 if (w->wd >= 0)
2952 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3662 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2953 3663
2954 /* now re-arm timer, if required */ 3664 /* now re-arm timer, if required */
2955 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3665 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2956 ev_timer_again (EV_A_ &w->timer); 3666 ev_timer_again (EV_A_ &w->timer);
2957 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3667 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2965 3675
2966 if (wd < 0) 3676 if (wd < 0)
2967 return; 3677 return;
2968 3678
2969 w->wd = -2; 3679 w->wd = -2;
2970 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3680 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2971 wlist_del (&fs_hash [slot].head, (WL)w); 3681 wlist_del (&fs_hash [slot].head, (WL)w);
2972 3682
2973 /* remove this watcher, if others are watching it, they will rearm */ 3683 /* remove this watcher, if others are watching it, they will rearm */
2974 inotify_rm_watch (fs_fd, wd); 3684 inotify_rm_watch (fs_fd, wd);
2975} 3685}
… …
2977static void noinline 3687static void noinline
2978infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3688infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2979{ 3689{
2980 if (slot < 0) 3690 if (slot < 0)
2981 /* overflow, need to check for all hash slots */ 3691 /* overflow, need to check for all hash slots */
2982 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3692 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2983 infy_wd (EV_A_ slot, wd, ev); 3693 infy_wd (EV_A_ slot, wd, ev);
2984 else 3694 else
2985 { 3695 {
2986 WL w_; 3696 WL w_;
2987 3697
2988 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3698 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2989 { 3699 {
2990 ev_stat *w = (ev_stat *)w_; 3700 ev_stat *w = (ev_stat *)w_;
2991 w_ = w_->next; /* lets us remove this watcher and all before it */ 3701 w_ = w_->next; /* lets us remove this watcher and all before it */
2992 3702
2993 if (w->wd == wd || wd == -1) 3703 if (w->wd == wd || wd == -1)
2994 { 3704 {
2995 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3705 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2996 { 3706 {
2997 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3707 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2998 w->wd = -1; 3708 w->wd = -1;
2999 infy_add (EV_A_ w); /* re-add, no matter what */ 3709 infy_add (EV_A_ w); /* re-add, no matter what */
3000 } 3710 }
3001 3711
3002 stat_timer_cb (EV_A_ &w->timer, 0); 3712 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3018 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3728 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3019 ofs += sizeof (struct inotify_event) + ev->len; 3729 ofs += sizeof (struct inotify_event) + ev->len;
3020 } 3730 }
3021} 3731}
3022 3732
3023inline_size unsigned int
3024ev_linux_version (void)
3025{
3026 struct utsname buf;
3027 unsigned int v;
3028 int i;
3029 char *p = buf.release;
3030
3031 if (uname (&buf))
3032 return 0;
3033
3034 for (i = 3+1; --i; )
3035 {
3036 unsigned int c = 0;
3037
3038 for (;;)
3039 {
3040 if (*p >= '0' && *p <= '9')
3041 c = c * 10 + *p++ - '0';
3042 else
3043 {
3044 p += *p == '.';
3045 break;
3046 }
3047 }
3048
3049 v = (v << 8) | c;
3050 }
3051
3052 return v;
3053}
3054
3055inline_size void 3733inline_size void ecb_cold
3056ev_check_2625 (EV_P) 3734ev_check_2625 (EV_P)
3057{ 3735{
3058 /* kernels < 2.6.25 are borked 3736 /* kernels < 2.6.25 are borked
3059 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3737 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3060 */ 3738 */
… …
3065} 3743}
3066 3744
3067inline_size int 3745inline_size int
3068infy_newfd (void) 3746infy_newfd (void)
3069{ 3747{
3070#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3748#if defined IN_CLOEXEC && defined IN_NONBLOCK
3071 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3749 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3072 if (fd >= 0) 3750 if (fd >= 0)
3073 return fd; 3751 return fd;
3074#endif 3752#endif
3075 return inotify_init (); 3753 return inotify_init ();
… …
3116 ev_io_set (&fs_w, fs_fd, EV_READ); 3794 ev_io_set (&fs_w, fs_fd, EV_READ);
3117 ev_io_start (EV_A_ &fs_w); 3795 ev_io_start (EV_A_ &fs_w);
3118 ev_unref (EV_A); 3796 ev_unref (EV_A);
3119 } 3797 }
3120 3798
3121 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3799 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3122 { 3800 {
3123 WL w_ = fs_hash [slot].head; 3801 WL w_ = fs_hash [slot].head;
3124 fs_hash [slot].head = 0; 3802 fs_hash [slot].head = 0;
3125 3803
3126 while (w_) 3804 while (w_)
… …
3301 3979
3302 EV_FREQUENT_CHECK; 3980 EV_FREQUENT_CHECK;
3303} 3981}
3304#endif 3982#endif
3305 3983
3984#if EV_PREPARE_ENABLE
3306void 3985void
3307ev_prepare_start (EV_P_ ev_prepare *w) 3986ev_prepare_start (EV_P_ ev_prepare *w)
3308{ 3987{
3309 if (expect_false (ev_is_active (w))) 3988 if (expect_false (ev_is_active (w)))
3310 return; 3989 return;
… …
3336 4015
3337 ev_stop (EV_A_ (W)w); 4016 ev_stop (EV_A_ (W)w);
3338 4017
3339 EV_FREQUENT_CHECK; 4018 EV_FREQUENT_CHECK;
3340} 4019}
4020#endif
3341 4021
4022#if EV_CHECK_ENABLE
3342void 4023void
3343ev_check_start (EV_P_ ev_check *w) 4024ev_check_start (EV_P_ ev_check *w)
3344{ 4025{
3345 if (expect_false (ev_is_active (w))) 4026 if (expect_false (ev_is_active (w)))
3346 return; 4027 return;
… …
3372 4053
3373 ev_stop (EV_A_ (W)w); 4054 ev_stop (EV_A_ (W)w);
3374 4055
3375 EV_FREQUENT_CHECK; 4056 EV_FREQUENT_CHECK;
3376} 4057}
4058#endif
3377 4059
3378#if EV_EMBED_ENABLE 4060#if EV_EMBED_ENABLE
3379void noinline 4061void noinline
3380ev_embed_sweep (EV_P_ ev_embed *w) 4062ev_embed_sweep (EV_P_ ev_embed *w)
3381{ 4063{
3382 ev_loop (w->other, EVLOOP_NONBLOCK); 4064 ev_run (w->other, EVRUN_NOWAIT);
3383} 4065}
3384 4066
3385static void 4067static void
3386embed_io_cb (EV_P_ ev_io *io, int revents) 4068embed_io_cb (EV_P_ ev_io *io, int revents)
3387{ 4069{
3388 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4070 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3389 4071
3390 if (ev_cb (w)) 4072 if (ev_cb (w))
3391 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4073 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3392 else 4074 else
3393 ev_loop (w->other, EVLOOP_NONBLOCK); 4075 ev_run (w->other, EVRUN_NOWAIT);
3394} 4076}
3395 4077
3396static void 4078static void
3397embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4079embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3398{ 4080{
… …
3402 EV_P = w->other; 4084 EV_P = w->other;
3403 4085
3404 while (fdchangecnt) 4086 while (fdchangecnt)
3405 { 4087 {
3406 fd_reify (EV_A); 4088 fd_reify (EV_A);
3407 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4089 ev_run (EV_A_ EVRUN_NOWAIT);
3408 } 4090 }
3409 } 4091 }
3410} 4092}
3411 4093
3412static void 4094static void
… …
3418 4100
3419 { 4101 {
3420 EV_P = w->other; 4102 EV_P = w->other;
3421 4103
3422 ev_loop_fork (EV_A); 4104 ev_loop_fork (EV_A);
3423 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4105 ev_run (EV_A_ EVRUN_NOWAIT);
3424 } 4106 }
3425 4107
3426 ev_embed_start (EV_A_ w); 4108 ev_embed_start (EV_A_ w);
3427} 4109}
3428 4110
… …
3520 4202
3521 EV_FREQUENT_CHECK; 4203 EV_FREQUENT_CHECK;
3522} 4204}
3523#endif 4205#endif
3524 4206
4207#if EV_CLEANUP_ENABLE
4208void
4209ev_cleanup_start (EV_P_ ev_cleanup *w)
4210{
4211 if (expect_false (ev_is_active (w)))
4212 return;
4213
4214 EV_FREQUENT_CHECK;
4215
4216 ev_start (EV_A_ (W)w, ++cleanupcnt);
4217 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4218 cleanups [cleanupcnt - 1] = w;
4219
4220 /* cleanup watchers should never keep a refcount on the loop */
4221 ev_unref (EV_A);
4222 EV_FREQUENT_CHECK;
4223}
4224
4225void
4226ev_cleanup_stop (EV_P_ ev_cleanup *w)
4227{
4228 clear_pending (EV_A_ (W)w);
4229 if (expect_false (!ev_is_active (w)))
4230 return;
4231
4232 EV_FREQUENT_CHECK;
4233 ev_ref (EV_A);
4234
4235 {
4236 int active = ev_active (w);
4237
4238 cleanups [active - 1] = cleanups [--cleanupcnt];
4239 ev_active (cleanups [active - 1]) = active;
4240 }
4241
4242 ev_stop (EV_A_ (W)w);
4243
4244 EV_FREQUENT_CHECK;
4245}
4246#endif
4247
3525#if EV_ASYNC_ENABLE 4248#if EV_ASYNC_ENABLE
3526void 4249void
3527ev_async_start (EV_P_ ev_async *w) 4250ev_async_start (EV_P_ ev_async *w)
3528{ 4251{
3529 if (expect_false (ev_is_active (w))) 4252 if (expect_false (ev_is_active (w)))
3530 return; 4253 return;
4254
4255 w->sent = 0;
3531 4256
3532 evpipe_init (EV_A); 4257 evpipe_init (EV_A);
3533 4258
3534 EV_FREQUENT_CHECK; 4259 EV_FREQUENT_CHECK;
3535 4260
… …
3613{ 4338{
3614 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4339 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3615 4340
3616 if (expect_false (!once)) 4341 if (expect_false (!once))
3617 { 4342 {
3618 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4343 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3619 return; 4344 return;
3620 } 4345 }
3621 4346
3622 once->cb = cb; 4347 once->cb = cb;
3623 once->arg = arg; 4348 once->arg = arg;
… …
3638} 4363}
3639 4364
3640/*****************************************************************************/ 4365/*****************************************************************************/
3641 4366
3642#if EV_WALK_ENABLE 4367#if EV_WALK_ENABLE
3643void 4368void ecb_cold
3644ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4369ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3645{ 4370{
3646 int i, j; 4371 int i, j;
3647 ev_watcher_list *wl, *wn; 4372 ev_watcher_list *wl, *wn;
3648 4373
… …
3692 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4417 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3693#endif 4418#endif
3694 4419
3695#if EV_IDLE_ENABLE 4420#if EV_IDLE_ENABLE
3696 if (types & EV_IDLE) 4421 if (types & EV_IDLE)
3697 for (j = NUMPRI; i--; ) 4422 for (j = NUMPRI; j--; )
3698 for (i = idlecnt [j]; i--; ) 4423 for (i = idlecnt [j]; i--; )
3699 cb (EV_A_ EV_IDLE, idles [j][i]); 4424 cb (EV_A_ EV_IDLE, idles [j][i]);
3700#endif 4425#endif
3701 4426
3702#if EV_FORK_ENABLE 4427#if EV_FORK_ENABLE
… …
3710 if (types & EV_ASYNC) 4435 if (types & EV_ASYNC)
3711 for (i = asynccnt; i--; ) 4436 for (i = asynccnt; i--; )
3712 cb (EV_A_ EV_ASYNC, asyncs [i]); 4437 cb (EV_A_ EV_ASYNC, asyncs [i]);
3713#endif 4438#endif
3714 4439
4440#if EV_PREPARE_ENABLE
3715 if (types & EV_PREPARE) 4441 if (types & EV_PREPARE)
3716 for (i = preparecnt; i--; ) 4442 for (i = preparecnt; i--; )
3717#if EV_EMBED_ENABLE 4443# if EV_EMBED_ENABLE
3718 if (ev_cb (prepares [i]) != embed_prepare_cb) 4444 if (ev_cb (prepares [i]) != embed_prepare_cb)
3719#endif 4445# endif
3720 cb (EV_A_ EV_PREPARE, prepares [i]); 4446 cb (EV_A_ EV_PREPARE, prepares [i]);
4447#endif
3721 4448
4449#if EV_CHECK_ENABLE
3722 if (types & EV_CHECK) 4450 if (types & EV_CHECK)
3723 for (i = checkcnt; i--; ) 4451 for (i = checkcnt; i--; )
3724 cb (EV_A_ EV_CHECK, checks [i]); 4452 cb (EV_A_ EV_CHECK, checks [i]);
4453#endif
3725 4454
4455#if EV_SIGNAL_ENABLE
3726 if (types & EV_SIGNAL) 4456 if (types & EV_SIGNAL)
3727 for (i = 0; i < EV_NSIG - 1; ++i) 4457 for (i = 0; i < EV_NSIG - 1; ++i)
3728 for (wl = signals [i].head; wl; ) 4458 for (wl = signals [i].head; wl; )
3729 { 4459 {
3730 wn = wl->next; 4460 wn = wl->next;
3731 cb (EV_A_ EV_SIGNAL, wl); 4461 cb (EV_A_ EV_SIGNAL, wl);
3732 wl = wn; 4462 wl = wn;
3733 } 4463 }
4464#endif
3734 4465
4466#if EV_CHILD_ENABLE
3735 if (types & EV_CHILD) 4467 if (types & EV_CHILD)
3736 for (i = EV_PID_HASHSIZE; i--; ) 4468 for (i = (EV_PID_HASHSIZE); i--; )
3737 for (wl = childs [i]; wl; ) 4469 for (wl = childs [i]; wl; )
3738 { 4470 {
3739 wn = wl->next; 4471 wn = wl->next;
3740 cb (EV_A_ EV_CHILD, wl); 4472 cb (EV_A_ EV_CHILD, wl);
3741 wl = wn; 4473 wl = wn;
3742 } 4474 }
4475#endif
3743/* EV_STAT 0x00001000 /* stat data changed */ 4476/* EV_STAT 0x00001000 /* stat data changed */
3744/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4477/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3745} 4478}
3746#endif 4479#endif
3747 4480
3748#if EV_MULTIPLICITY 4481#if EV_MULTIPLICITY
3749 #include "ev_wrap.h" 4482 #include "ev_wrap.h"
3750#endif 4483#endif
3751 4484
3752#ifdef __cplusplus
3753}
3754#endif
3755

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