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Comparing libev/ev.c (file contents):
Revision 1.332 by root, Tue Mar 9 08:58:17 2010 UTC vs.
Revision 1.417 by root, Mon Apr 2 20:22:30 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 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 ();
… …
568} 1136}
569 1137
570static void * 1138static void *
571ev_realloc_emul (void *ptr, long size) 1139ev_realloc_emul (void *ptr, long size)
572{ 1140{
1141#if __GLIBC__
1142 return realloc (ptr, size);
1143#else
573 /* some systems, notably openbsd and darwin, fail to properly 1144 /* some systems, notably openbsd and darwin, fail to properly
574 * 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
575 * the single unix specification, so work around them here. 1146 * the single unix specification, so work around them here.
576 */ 1147 */
1148
577 if (size) 1149 if (size)
578 return realloc (ptr, size); 1150 return realloc (ptr, size);
579 1151
580 free (ptr); 1152 free (ptr);
581 return 0; 1153 return 0;
1154#endif
582} 1155}
583 1156
584static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1157static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
585 1158
586void 1159void ecb_cold
587ev_set_allocator (void *(*cb)(void *ptr, long size)) 1160ev_set_allocator (void *(*cb)(void *ptr, long size))
588{ 1161{
589 alloc = cb; 1162 alloc = cb;
590} 1163}
591 1164
… …
595 ptr = alloc (ptr, size); 1168 ptr = alloc (ptr, size);
596 1169
597 if (!ptr && size) 1170 if (!ptr && size)
598 { 1171 {
599#if EV_AVOID_STDIO 1172#if EV_AVOID_STDIO
600 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1173 ev_printerr ("(libev) memory allocation failed, aborting.\n");
601#else 1174#else
602 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1175 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
603#endif 1176#endif
604 abort (); 1177 abort ();
605 } 1178 }
606 1179
607 return ptr; 1180 return ptr;
… …
624 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 */
625 unsigned char unused; 1198 unsigned char unused;
626#if EV_USE_EPOLL 1199#if EV_USE_EPOLL
627 unsigned int egen; /* generation counter to counter epoll bugs */ 1200 unsigned int egen; /* generation counter to counter epoll bugs */
628#endif 1201#endif
629#if EV_SELECT_IS_WINSOCKET 1202#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
630 SOCKET handle; 1203 SOCKET handle;
1204#endif
1205#if EV_USE_IOCP
1206 OVERLAPPED or, ow;
631#endif 1207#endif
632} ANFD; 1208} ANFD;
633 1209
634/* stores the pending event set for a given watcher */ 1210/* stores the pending event set for a given watcher */
635typedef struct 1211typedef struct
… …
677 #undef VAR 1253 #undef VAR
678 }; 1254 };
679 #include "ev_wrap.h" 1255 #include "ev_wrap.h"
680 1256
681 static struct ev_loop default_loop_struct; 1257 static struct ev_loop default_loop_struct;
682 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 */
683 1259
684#else 1260#else
685 1261
686 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 */
687 #define VAR(name,decl) static decl; 1263 #define VAR(name,decl) static decl;
688 #include "ev_vars.h" 1264 #include "ev_vars.h"
689 #undef VAR 1265 #undef VAR
690 1266
691 static int ev_default_loop_ptr; 1267 static int ev_default_loop_ptr;
692 1268
693#endif 1269#endif
694 1270
695#if EV_MINIMAL < 2 1271#if EV_FEATURE_API
696# 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)
697# 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)
698# define EV_INVOKE_PENDING invoke_cb (EV_A) 1274# define EV_INVOKE_PENDING invoke_cb (EV_A)
699#else 1275#else
700# define EV_RELEASE_CB (void)0 1276# define EV_RELEASE_CB (void)0
701# define EV_ACQUIRE_CB (void)0 1277# define EV_ACQUIRE_CB (void)0
702# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1278# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
703#endif 1279#endif
704 1280
705#define EVUNLOOP_RECURSE 0x80 1281#define EVBREAK_RECURSE 0x80
706 1282
707/*****************************************************************************/ 1283/*****************************************************************************/
708 1284
709#ifndef EV_HAVE_EV_TIME 1285#ifndef EV_HAVE_EV_TIME
710ev_tstamp 1286ev_tstamp
… …
754 if (delay > 0.) 1330 if (delay > 0.)
755 { 1331 {
756#if EV_USE_NANOSLEEP 1332#if EV_USE_NANOSLEEP
757 struct timespec ts; 1333 struct timespec ts;
758 1334
759 ts.tv_sec = (time_t)delay; 1335 EV_TS_SET (ts, delay);
760 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
761
762 nanosleep (&ts, 0); 1336 nanosleep (&ts, 0);
763#elif defined(_WIN32) 1337#elif defined _WIN32
764 Sleep ((unsigned long)(delay * 1e3)); 1338 Sleep ((unsigned long)(delay * 1e3));
765#else 1339#else
766 struct timeval tv; 1340 struct timeval tv;
767 1341
768 tv.tv_sec = (time_t)delay;
769 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
770
771 /* 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 */
772 /* something not guaranteed by newer posix versions, but guaranteed */ 1343 /* something not guaranteed by newer posix versions, but guaranteed */
773 /* by older ones */ 1344 /* by older ones */
1345 EV_TV_SET (tv, delay);
774 select (0, 0, 0, 0, &tv); 1346 select (0, 0, 0, 0, &tv);
775#endif 1347#endif
776 } 1348 }
777} 1349}
778 1350
779/*****************************************************************************/ 1351/*****************************************************************************/
780 1352
781#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 */
782 1354
783/* find a suitable new size for the given array, */ 1355/* find a suitable new size for the given array, */
784/* hopefully by rounding to a ncie-to-malloc size */ 1356/* hopefully by rounding to a nice-to-malloc size */
785inline_size int 1357inline_size int
786array_nextsize (int elem, int cur, int cnt) 1358array_nextsize (int elem, int cur, int cnt)
787{ 1359{
788 int ncur = cur + 1; 1360 int ncur = cur + 1;
789 1361
790 do 1362 do
791 ncur <<= 1; 1363 ncur <<= 1;
792 while (cnt > ncur); 1364 while (cnt > ncur);
793 1365
794 /* 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 */
795 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1367 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
796 { 1368 {
797 ncur *= elem; 1369 ncur *= elem;
798 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);
799 ncur = ncur - sizeof (void *) * 4; 1371 ncur = ncur - sizeof (void *) * 4;
… …
801 } 1373 }
802 1374
803 return ncur; 1375 return ncur;
804} 1376}
805 1377
806static noinline void * 1378static void * noinline ecb_cold
807array_realloc (int elem, void *base, int *cur, int cnt) 1379array_realloc (int elem, void *base, int *cur, int cnt)
808{ 1380{
809 *cur = array_nextsize (elem, *cur, cnt); 1381 *cur = array_nextsize (elem, *cur, cnt);
810 return ev_realloc (base, elem * *cur); 1382 return ev_realloc (base, elem * *cur);
811} 1383}
… …
814 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1386 memset ((void *)(base), 0, sizeof (*(base)) * (count))
815 1387
816#define array_needsize(type,base,cur,cnt,init) \ 1388#define array_needsize(type,base,cur,cnt,init) \
817 if (expect_false ((cnt) > (cur))) \ 1389 if (expect_false ((cnt) > (cur))) \
818 { \ 1390 { \
819 int ocur_ = (cur); \ 1391 int ecb_unused ocur_ = (cur); \
820 (base) = (type *)array_realloc \ 1392 (base) = (type *)array_realloc \
821 (sizeof (type), (base), &(cur), (cnt)); \ 1393 (sizeof (type), (base), &(cur), (cnt)); \
822 init ((base) + (ocur_), (cur) - ocur_); \ 1394 init ((base) + (ocur_), (cur) - ocur_); \
823 } 1395 }
824 1396
… …
885} 1457}
886 1458
887/*****************************************************************************/ 1459/*****************************************************************************/
888 1460
889inline_speed void 1461inline_speed void
890fd_event_nc (EV_P_ int fd, int revents) 1462fd_event_nocheck (EV_P_ int fd, int revents)
891{ 1463{
892 ANFD *anfd = anfds + fd; 1464 ANFD *anfd = anfds + fd;
893 ev_io *w; 1465 ev_io *w;
894 1466
895 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)
… …
907fd_event (EV_P_ int fd, int revents) 1479fd_event (EV_P_ int fd, int revents)
908{ 1480{
909 ANFD *anfd = anfds + fd; 1481 ANFD *anfd = anfds + fd;
910 1482
911 if (expect_true (!anfd->reify)) 1483 if (expect_true (!anfd->reify))
912 fd_event_nc (EV_A_ fd, revents); 1484 fd_event_nocheck (EV_A_ fd, revents);
913} 1485}
914 1486
915void 1487void
916ev_feed_fd_event (EV_P_ int fd, int revents) 1488ev_feed_fd_event (EV_P_ int fd, int revents)
917{ 1489{
918 if (fd >= 0 && fd < anfdmax) 1490 if (fd >= 0 && fd < anfdmax)
919 fd_event_nc (EV_A_ fd, revents); 1491 fd_event_nocheck (EV_A_ fd, revents);
920} 1492}
921 1493
922/* make sure the external fd watch events are in-sync */ 1494/* make sure the external fd watch events are in-sync */
923/* with the kernel/libev internal state */ 1495/* with the kernel/libev internal state */
924inline_size void 1496inline_size void
925fd_reify (EV_P) 1497fd_reify (EV_P)
926{ 1498{
927 int i; 1499 int i;
928 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
929 for (i = 0; i < fdchangecnt; ++i) 1526 for (i = 0; i < fdchangecnt; ++i)
930 { 1527 {
931 int fd = fdchanges [i]; 1528 int fd = fdchanges [i];
932 ANFD *anfd = anfds + fd; 1529 ANFD *anfd = anfds + fd;
933 ev_io *w; 1530 ev_io *w;
934 1531
935 unsigned char events = 0; 1532 unsigned char o_events = anfd->events;
1533 unsigned char o_reify = anfd->reify;
936 1534
937 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1535 anfd->reify = 0;
938 events |= (unsigned char)w->events;
939 1536
940#if EV_SELECT_IS_WINSOCKET 1537 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
941 if (events)
942 { 1538 {
943 unsigned long arg; 1539 anfd->events = 0;
944 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1540
945 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 |= */
946 } 1546 }
947#endif
948 1547
949 { 1548 if (o_reify & EV__IOFDSET)
950 unsigned char o_events = anfd->events;
951 unsigned char o_reify = anfd->reify;
952
953 anfd->reify = 0;
954 anfd->events = events;
955
956 if (o_events != events || o_reify & EV__IOFDSET)
957 backend_modify (EV_A_ fd, o_events, events); 1549 backend_modify (EV_A_ fd, o_events, anfd->events);
958 }
959 } 1550 }
960 1551
961 fdchangecnt = 0; 1552 fdchangecnt = 0;
962} 1553}
963 1554
… …
975 fdchanges [fdchangecnt - 1] = fd; 1566 fdchanges [fdchangecnt - 1] = fd;
976 } 1567 }
977} 1568}
978 1569
979/* 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 */
980inline_speed void 1571inline_speed void ecb_cold
981fd_kill (EV_P_ int fd) 1572fd_kill (EV_P_ int fd)
982{ 1573{
983 ev_io *w; 1574 ev_io *w;
984 1575
985 while ((w = (ev_io *)anfds [fd].head)) 1576 while ((w = (ev_io *)anfds [fd].head))
… …
987 ev_io_stop (EV_A_ w); 1578 ev_io_stop (EV_A_ w);
988 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);
989 } 1580 }
990} 1581}
991 1582
992/* check whether the given fd is atcually valid, for error recovery */ 1583/* check whether the given fd is actually valid, for error recovery */
993inline_size int 1584inline_size int ecb_cold
994fd_valid (int fd) 1585fd_valid (int fd)
995{ 1586{
996#ifdef _WIN32 1587#ifdef _WIN32
997 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1588 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
998#else 1589#else
999 return fcntl (fd, F_GETFD) != -1; 1590 return fcntl (fd, F_GETFD) != -1;
1000#endif 1591#endif
1001} 1592}
1002 1593
1003/* called on EBADF to verify fds */ 1594/* called on EBADF to verify fds */
1004static void noinline 1595static void noinline ecb_cold
1005fd_ebadf (EV_P) 1596fd_ebadf (EV_P)
1006{ 1597{
1007 int fd; 1598 int fd;
1008 1599
1009 for (fd = 0; fd < anfdmax; ++fd) 1600 for (fd = 0; fd < anfdmax; ++fd)
… …
1011 if (!fd_valid (fd) && errno == EBADF) 1602 if (!fd_valid (fd) && errno == EBADF)
1012 fd_kill (EV_A_ fd); 1603 fd_kill (EV_A_ fd);
1013} 1604}
1014 1605
1015/* 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 */
1016static void noinline 1607static void noinline ecb_cold
1017fd_enomem (EV_P) 1608fd_enomem (EV_P)
1018{ 1609{
1019 int fd; 1610 int fd;
1020 1611
1021 for (fd = anfdmax; fd--; ) 1612 for (fd = anfdmax; fd--; )
… …
1039 anfds [fd].emask = 0; 1630 anfds [fd].emask = 0;
1040 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1631 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1041 } 1632 }
1042} 1633}
1043 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
1044/*****************************************************************************/ 1649/*****************************************************************************/
1045 1650
1046/* 1651/*
1047 * 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
1048 * 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
1049 * the branching factor of the d-tree. 1654 * the branching factor of the d-tree.
1050 */ 1655 */
1051 1656
1052/* 1657/*
… …
1200 1805
1201static ANSIG signals [EV_NSIG - 1]; 1806static ANSIG signals [EV_NSIG - 1];
1202 1807
1203/*****************************************************************************/ 1808/*****************************************************************************/
1204 1809
1205/* used to prepare libev internal fd's */ 1810#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1206/* this is not fork-safe */
1207inline_speed void
1208fd_intern (int fd)
1209{
1210#ifdef _WIN32
1211 unsigned long arg = 1;
1212 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1213#else
1214 fcntl (fd, F_SETFD, FD_CLOEXEC);
1215 fcntl (fd, F_SETFL, O_NONBLOCK);
1216#endif
1217}
1218 1811
1219static void noinline 1812static void noinline ecb_cold
1220evpipe_init (EV_P) 1813evpipe_init (EV_P)
1221{ 1814{
1222 if (!ev_is_active (&pipe_w)) 1815 if (!ev_is_active (&pipe_w))
1223 { 1816 {
1224#if EV_USE_EVENTFD 1817# if EV_USE_EVENTFD
1225 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1818 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1226 if (evfd < 0 && errno == EINVAL) 1819 if (evfd < 0 && errno == EINVAL)
1227 evfd = eventfd (0, 0); 1820 evfd = eventfd (0, 0);
1228 1821
1229 if (evfd >= 0) 1822 if (evfd >= 0)
… …
1231 evpipe [0] = -1; 1824 evpipe [0] = -1;
1232 fd_intern (evfd); /* doing it twice doesn't hurt */ 1825 fd_intern (evfd); /* doing it twice doesn't hurt */
1233 ev_io_set (&pipe_w, evfd, EV_READ); 1826 ev_io_set (&pipe_w, evfd, EV_READ);
1234 } 1827 }
1235 else 1828 else
1236#endif 1829# endif
1237 { 1830 {
1238 while (pipe (evpipe)) 1831 while (pipe (evpipe))
1239 ev_syserr ("(libev) error creating signal/async pipe"); 1832 ev_syserr ("(libev) error creating signal/async pipe");
1240 1833
1241 fd_intern (evpipe [0]); 1834 fd_intern (evpipe [0]);
… …
1246 ev_io_start (EV_A_ &pipe_w); 1839 ev_io_start (EV_A_ &pipe_w);
1247 ev_unref (EV_A); /* watcher should not keep loop alive */ 1840 ev_unref (EV_A); /* watcher should not keep loop alive */
1248 } 1841 }
1249} 1842}
1250 1843
1251inline_size void 1844inline_speed void
1252evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1845evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1253{ 1846{
1254 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)
1255 { 1859 {
1860 int old_errno;
1861
1862 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1863
1256 int old_errno = errno; /* save errno because write might clobber it */ 1864 old_errno = errno; /* save errno because write will clobber it */
1257
1258 *flag = 1;
1259 1865
1260#if EV_USE_EVENTFD 1866#if EV_USE_EVENTFD
1261 if (evfd >= 0) 1867 if (evfd >= 0)
1262 { 1868 {
1263 uint64_t counter = 1; 1869 uint64_t counter = 1;
1264 write (evfd, &counter, sizeof (uint64_t)); 1870 write (evfd, &counter, sizeof (uint64_t));
1265 } 1871 }
1266 else 1872 else
1267#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 */
1268 write (evpipe [1], &old_errno, 1); 1882 write (evpipe [1], &(evpipe [1]), 1);
1883 }
1269 1884
1270 errno = old_errno; 1885 errno = old_errno;
1271 } 1886 }
1272} 1887}
1273 1888
… …
1276static void 1891static void
1277pipecb (EV_P_ ev_io *iow, int revents) 1892pipecb (EV_P_ ev_io *iow, int revents)
1278{ 1893{
1279 int i; 1894 int i;
1280 1895
1896 if (revents & EV_READ)
1897 {
1281#if EV_USE_EVENTFD 1898#if EV_USE_EVENTFD
1282 if (evfd >= 0) 1899 if (evfd >= 0)
1283 { 1900 {
1284 uint64_t counter; 1901 uint64_t counter;
1285 read (evfd, &counter, sizeof (uint64_t)); 1902 read (evfd, &counter, sizeof (uint64_t));
1286 } 1903 }
1287 else 1904 else
1288#endif 1905#endif
1289 { 1906 {
1290 char dummy; 1907 char dummy;
1908 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1291 read (evpipe [0], &dummy, 1); 1909 read (evpipe [0], &dummy, 1);
1910 }
1292 } 1911 }
1293 1912
1913 pipe_write_skipped = 0;
1914
1915#if EV_SIGNAL_ENABLE
1294 if (sig_pending) 1916 if (sig_pending)
1295 { 1917 {
1296 sig_pending = 0; 1918 sig_pending = 0;
1297 1919
1298 for (i = EV_NSIG - 1; i--; ) 1920 for (i = EV_NSIG - 1; i--; )
1299 if (expect_false (signals [i].pending)) 1921 if (expect_false (signals [i].pending))
1300 ev_feed_signal_event (EV_A_ i + 1); 1922 ev_feed_signal_event (EV_A_ i + 1);
1301 } 1923 }
1924#endif
1302 1925
1303#if EV_ASYNC_ENABLE 1926#if EV_ASYNC_ENABLE
1304 if (async_pending) 1927 if (async_pending)
1305 { 1928 {
1306 async_pending = 0; 1929 async_pending = 0;
… …
1315#endif 1938#endif
1316} 1939}
1317 1940
1318/*****************************************************************************/ 1941/*****************************************************************************/
1319 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
1320static void 1960static void
1321ev_sighandler (int signum) 1961ev_sighandler (int signum)
1322{ 1962{
1323#if EV_MULTIPLICITY
1324 EV_P = signals [signum - 1].loop;
1325#endif
1326
1327#ifdef _WIN32 1963#ifdef _WIN32
1328 signal (signum, ev_sighandler); 1964 signal (signum, ev_sighandler);
1329#endif 1965#endif
1330 1966
1331 signals [signum - 1].pending = 1; 1967 ev_feed_signal (signum);
1332 evpipe_write (EV_A_ &sig_pending);
1333} 1968}
1334 1969
1335void noinline 1970void noinline
1336ev_feed_signal_event (EV_P_ int signum) 1971ev_feed_signal_event (EV_P_ int signum)
1337{ 1972{
… …
1374 break; 2009 break;
1375 } 2010 }
1376} 2011}
1377#endif 2012#endif
1378 2013
2014#endif
2015
1379/*****************************************************************************/ 2016/*****************************************************************************/
1380 2017
2018#if EV_CHILD_ENABLE
1381static WL childs [EV_PID_HASHSIZE]; 2019static WL childs [EV_PID_HASHSIZE];
1382
1383#ifndef _WIN32
1384 2020
1385static ev_signal childev; 2021static ev_signal childev;
1386 2022
1387#ifndef WIFCONTINUED 2023#ifndef WIFCONTINUED
1388# define WIFCONTINUED(status) 0 2024# define WIFCONTINUED(status) 0
… …
1393child_reap (EV_P_ int chain, int pid, int status) 2029child_reap (EV_P_ int chain, int pid, int status)
1394{ 2030{
1395 ev_child *w; 2031 ev_child *w;
1396 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2032 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1397 2033
1398 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)
1399 { 2035 {
1400 if ((w->pid == pid || !w->pid) 2036 if ((w->pid == pid || !w->pid)
1401 && (!traced || (w->flags & 1))) 2037 && (!traced || (w->flags & 1)))
1402 { 2038 {
1403 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 */
… …
1428 /* 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 */
1429 /* 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 */
1430 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2066 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1431 2067
1432 child_reap (EV_A_ pid, pid, status); 2068 child_reap (EV_A_ pid, pid, status);
1433 if (EV_PID_HASHSIZE > 1) 2069 if ((EV_PID_HASHSIZE) > 1)
1434 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 */
1435} 2071}
1436 2072
1437#endif 2073#endif
1438 2074
1439/*****************************************************************************/ 2075/*****************************************************************************/
1440 2076
2077#if EV_USE_IOCP
2078# include "ev_iocp.c"
2079#endif
1441#if EV_USE_PORT 2080#if EV_USE_PORT
1442# include "ev_port.c" 2081# include "ev_port.c"
1443#endif 2082#endif
1444#if EV_USE_KQUEUE 2083#if EV_USE_KQUEUE
1445# include "ev_kqueue.c" 2084# include "ev_kqueue.c"
… …
1452#endif 2091#endif
1453#if EV_USE_SELECT 2092#if EV_USE_SELECT
1454# include "ev_select.c" 2093# include "ev_select.c"
1455#endif 2094#endif
1456 2095
1457int 2096int ecb_cold
1458ev_version_major (void) 2097ev_version_major (void)
1459{ 2098{
1460 return EV_VERSION_MAJOR; 2099 return EV_VERSION_MAJOR;
1461} 2100}
1462 2101
1463int 2102int ecb_cold
1464ev_version_minor (void) 2103ev_version_minor (void)
1465{ 2104{
1466 return EV_VERSION_MINOR; 2105 return EV_VERSION_MINOR;
1467} 2106}
1468 2107
1469/* 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 */
1470int inline_size 2109int inline_size ecb_cold
1471enable_secure (void) 2110enable_secure (void)
1472{ 2111{
1473#ifdef _WIN32 2112#ifdef _WIN32
1474 return 0; 2113 return 0;
1475#else 2114#else
1476 return getuid () != geteuid () 2115 return getuid () != geteuid ()
1477 || getgid () != getegid (); 2116 || getgid () != getegid ();
1478#endif 2117#endif
1479} 2118}
1480 2119
1481unsigned int 2120unsigned int ecb_cold
1482ev_supported_backends (void) 2121ev_supported_backends (void)
1483{ 2122{
1484 unsigned int flags = 0; 2123 unsigned int flags = 0;
1485 2124
1486 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2125 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1490 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2129 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1491 2130
1492 return flags; 2131 return flags;
1493} 2132}
1494 2133
1495unsigned int 2134unsigned int ecb_cold
1496ev_recommended_backends (void) 2135ev_recommended_backends (void)
1497{ 2136{
1498 unsigned int flags = ev_supported_backends (); 2137 unsigned int flags = ev_supported_backends ();
1499 2138
1500#ifndef __NetBSD__ 2139#ifndef __NetBSD__
… …
1505#ifdef __APPLE__ 2144#ifdef __APPLE__
1506 /* only select works correctly on that "unix-certified" platform */ 2145 /* only select works correctly on that "unix-certified" platform */
1507 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2146 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1508 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 */
1509#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
1510 2152
1511 return flags; 2153 return flags;
1512} 2154}
1513 2155
1514unsigned int 2156unsigned int ecb_cold
1515ev_embeddable_backends (void) 2157ev_embeddable_backends (void)
1516{ 2158{
1517 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2159 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1518 2160
1519 /* 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 */
1520 /* please fix it and tell me how to detect the fix */ 2162 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1521 flags &= ~EVBACKEND_EPOLL; 2163 flags &= ~EVBACKEND_EPOLL;
1522 2164
1523 return flags; 2165 return flags;
1524} 2166}
1525 2167
1526unsigned int 2168unsigned int
1527ev_backend (EV_P) 2169ev_backend (EV_P)
1528{ 2170{
1529 return backend; 2171 return backend;
1530} 2172}
1531 2173
1532#if EV_MINIMAL < 2 2174#if EV_FEATURE_API
1533unsigned int 2175unsigned int
1534ev_loop_count (EV_P) 2176ev_iteration (EV_P)
1535{ 2177{
1536 return loop_count; 2178 return loop_count;
1537} 2179}
1538 2180
1539unsigned int 2181unsigned int
1540ev_loop_depth (EV_P) 2182ev_depth (EV_P)
1541{ 2183{
1542 return loop_depth; 2184 return loop_depth;
1543} 2185}
1544 2186
1545void 2187void
… …
1564ev_userdata (EV_P) 2206ev_userdata (EV_P)
1565{ 2207{
1566 return userdata; 2208 return userdata;
1567} 2209}
1568 2210
2211void
1569void 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))
1570{ 2213{
1571 invoke_cb = invoke_pending_cb; 2214 invoke_cb = invoke_pending_cb;
1572} 2215}
1573 2216
2217void
1574void 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))
1575{ 2219{
1576 release_cb = release; 2220 release_cb = release;
1577 acquire_cb = acquire; 2221 acquire_cb = acquire;
1578} 2222}
1579#endif 2223#endif
1580 2224
1581/* initialise a loop structure, must be zero-initialised */ 2225/* initialise a loop structure, must be zero-initialised */
1582static void noinline 2226static void noinline ecb_cold
1583loop_init (EV_P_ unsigned int flags) 2227loop_init (EV_P_ unsigned int flags)
1584{ 2228{
1585 if (!backend) 2229 if (!backend)
1586 { 2230 {
2231 origflags = flags;
2232
1587#if EV_USE_REALTIME 2233#if EV_USE_REALTIME
1588 if (!have_realtime) 2234 if (!have_realtime)
1589 { 2235 {
1590 struct timespec ts; 2236 struct timespec ts;
1591 2237
… …
1613 if (!(flags & EVFLAG_NOENV) 2259 if (!(flags & EVFLAG_NOENV)
1614 && !enable_secure () 2260 && !enable_secure ()
1615 && getenv ("LIBEV_FLAGS")) 2261 && getenv ("LIBEV_FLAGS"))
1616 flags = atoi (getenv ("LIBEV_FLAGS")); 2262 flags = atoi (getenv ("LIBEV_FLAGS"));
1617 2263
1618 ev_rt_now = ev_time (); 2264 ev_rt_now = ev_time ();
1619 mn_now = get_clock (); 2265 mn_now = get_clock ();
1620 now_floor = mn_now; 2266 now_floor = mn_now;
1621 rtmn_diff = ev_rt_now - mn_now; 2267 rtmn_diff = ev_rt_now - mn_now;
1622#if EV_MINIMAL < 2 2268#if EV_FEATURE_API
1623 invoke_cb = ev_invoke_pending; 2269 invoke_cb = ev_invoke_pending;
1624#endif 2270#endif
1625 2271
1626 io_blocktime = 0.; 2272 io_blocktime = 0.;
1627 timeout_blocktime = 0.; 2273 timeout_blocktime = 0.;
1628 backend = 0; 2274 backend = 0;
1629 backend_fd = -1; 2275 backend_fd = -1;
1630 sig_pending = 0; 2276 sig_pending = 0;
1631#if EV_ASYNC_ENABLE 2277#if EV_ASYNC_ENABLE
1632 async_pending = 0; 2278 async_pending = 0;
1633#endif 2279#endif
2280 pipe_write_skipped = 0;
2281 pipe_write_wanted = 0;
1634#if EV_USE_INOTIFY 2282#if EV_USE_INOTIFY
1635 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2283 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1636#endif 2284#endif
1637#if EV_USE_SIGNALFD 2285#if EV_USE_SIGNALFD
1638 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2286 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1639#endif 2287#endif
1640 2288
1641 if (!(flags & 0x0000ffffU)) 2289 if (!(flags & EVBACKEND_MASK))
1642 flags |= ev_recommended_backends (); 2290 flags |= ev_recommended_backends ();
1643 2291
2292#if EV_USE_IOCP
2293 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2294#endif
1644#if EV_USE_PORT 2295#if EV_USE_PORT
1645 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2296 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1646#endif 2297#endif
1647#if EV_USE_KQUEUE 2298#if EV_USE_KQUEUE
1648 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2299 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1657 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2308 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1658#endif 2309#endif
1659 2310
1660 ev_prepare_init (&pending_w, pendingcb); 2311 ev_prepare_init (&pending_w, pendingcb);
1661 2312
2313#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1662 ev_init (&pipe_w, pipecb); 2314 ev_init (&pipe_w, pipecb);
1663 ev_set_priority (&pipe_w, EV_MAXPRI); 2315 ev_set_priority (&pipe_w, EV_MAXPRI);
2316#endif
1664 } 2317 }
1665} 2318}
1666 2319
1667/* free up a loop structure */ 2320/* free up a loop structure */
1668static void noinline 2321void ecb_cold
1669loop_destroy (EV_P) 2322ev_loop_destroy (EV_P)
1670{ 2323{
1671 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
1672 2348
1673 if (ev_is_active (&pipe_w)) 2349 if (ev_is_active (&pipe_w))
1674 { 2350 {
1675 /*ev_ref (EV_A);*/ 2351 /*ev_ref (EV_A);*/
1676 /*ev_io_stop (EV_A_ &pipe_w);*/ 2352 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1698#endif 2374#endif
1699 2375
1700 if (backend_fd >= 0) 2376 if (backend_fd >= 0)
1701 close (backend_fd); 2377 close (backend_fd);
1702 2378
2379#if EV_USE_IOCP
2380 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2381#endif
1703#if EV_USE_PORT 2382#if EV_USE_PORT
1704 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2383 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1705#endif 2384#endif
1706#if EV_USE_KQUEUE 2385#if EV_USE_KQUEUE
1707 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2386 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1734 array_free (periodic, EMPTY); 2413 array_free (periodic, EMPTY);
1735#endif 2414#endif
1736#if EV_FORK_ENABLE 2415#if EV_FORK_ENABLE
1737 array_free (fork, EMPTY); 2416 array_free (fork, EMPTY);
1738#endif 2417#endif
2418#if EV_CLEANUP_ENABLE
2419 array_free (cleanup, EMPTY);
2420#endif
1739 array_free (prepare, EMPTY); 2421 array_free (prepare, EMPTY);
1740 array_free (check, EMPTY); 2422 array_free (check, EMPTY);
1741#if EV_ASYNC_ENABLE 2423#if EV_ASYNC_ENABLE
1742 array_free (async, EMPTY); 2424 array_free (async, EMPTY);
1743#endif 2425#endif
1744 2426
1745 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
1746} 2437}
1747 2438
1748#if EV_USE_INOTIFY 2439#if EV_USE_INOTIFY
1749inline_size void infy_fork (EV_P); 2440inline_size void infy_fork (EV_P);
1750#endif 2441#endif
… …
1765 infy_fork (EV_A); 2456 infy_fork (EV_A);
1766#endif 2457#endif
1767 2458
1768 if (ev_is_active (&pipe_w)) 2459 if (ev_is_active (&pipe_w))
1769 { 2460 {
1770 /* this "locks" the handlers against writing to the pipe */ 2461 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1771 /* while we modify the fd vars */
1772 sig_pending = 1;
1773#if EV_ASYNC_ENABLE
1774 async_pending = 1;
1775#endif
1776 2462
1777 ev_ref (EV_A); 2463 ev_ref (EV_A);
1778 ev_io_stop (EV_A_ &pipe_w); 2464 ev_io_stop (EV_A_ &pipe_w);
1779 2465
1780#if EV_USE_EVENTFD 2466#if EV_USE_EVENTFD
… …
1786 { 2472 {
1787 EV_WIN32_CLOSE_FD (evpipe [0]); 2473 EV_WIN32_CLOSE_FD (evpipe [0]);
1788 EV_WIN32_CLOSE_FD (evpipe [1]); 2474 EV_WIN32_CLOSE_FD (evpipe [1]);
1789 } 2475 }
1790 2476
2477#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1791 evpipe_init (EV_A); 2478 evpipe_init (EV_A);
1792 /* now iterate over everything, in case we missed something */ 2479 /* now iterate over everything, in case we missed something */
1793 pipecb (EV_A_ &pipe_w, EV_READ); 2480 pipecb (EV_A_ &pipe_w, EV_READ);
2481#endif
1794 } 2482 }
1795 2483
1796 postfork = 0; 2484 postfork = 0;
1797} 2485}
1798 2486
1799#if EV_MULTIPLICITY 2487#if EV_MULTIPLICITY
1800 2488
1801struct ev_loop * 2489struct ev_loop * ecb_cold
1802ev_loop_new (unsigned int flags) 2490ev_loop_new (unsigned int flags)
1803{ 2491{
1804 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2492 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1805 2493
1806 memset (EV_A, 0, sizeof (struct ev_loop)); 2494 memset (EV_A, 0, sizeof (struct ev_loop));
1807 loop_init (EV_A_ flags); 2495 loop_init (EV_A_ flags);
1808 2496
1809 if (ev_backend (EV_A)) 2497 if (ev_backend (EV_A))
1810 return EV_A; 2498 return EV_A;
1811 2499
2500 ev_free (EV_A);
1812 return 0; 2501 return 0;
1813} 2502}
1814 2503
1815void
1816ev_loop_destroy (EV_P)
1817{
1818 loop_destroy (EV_A);
1819 ev_free (loop);
1820}
1821
1822void
1823ev_loop_fork (EV_P)
1824{
1825 postfork = 1; /* must be in line with ev_default_fork */
1826}
1827#endif /* multiplicity */ 2504#endif /* multiplicity */
1828 2505
1829#if EV_VERIFY 2506#if EV_VERIFY
1830static void noinline 2507static void noinline ecb_cold
1831verify_watcher (EV_P_ W w) 2508verify_watcher (EV_P_ W w)
1832{ 2509{
1833 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));
1834 2511
1835 if (w->pending) 2512 if (w->pending)
1836 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));
1837} 2514}
1838 2515
1839static void noinline 2516static void noinline ecb_cold
1840verify_heap (EV_P_ ANHE *heap, int N) 2517verify_heap (EV_P_ ANHE *heap, int N)
1841{ 2518{
1842 int i; 2519 int i;
1843 2520
1844 for (i = HEAP0; i < N + HEAP0; ++i) 2521 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1849 2526
1850 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2527 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1851 } 2528 }
1852} 2529}
1853 2530
1854static void noinline 2531static void noinline ecb_cold
1855array_verify (EV_P_ W *ws, int cnt) 2532array_verify (EV_P_ W *ws, int cnt)
1856{ 2533{
1857 while (cnt--) 2534 while (cnt--)
1858 { 2535 {
1859 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2536 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1860 verify_watcher (EV_A_ ws [cnt]); 2537 verify_watcher (EV_A_ ws [cnt]);
1861 } 2538 }
1862} 2539}
1863#endif 2540#endif
1864 2541
1865#if EV_MINIMAL < 2 2542#if EV_FEATURE_API
1866void 2543void ecb_cold
1867ev_loop_verify (EV_P) 2544ev_verify (EV_P)
1868{ 2545{
1869#if EV_VERIFY 2546#if EV_VERIFY
1870 int i; 2547 int i;
1871 WL w; 2548 WL w;
1872 2549
… …
1906#if EV_FORK_ENABLE 2583#if EV_FORK_ENABLE
1907 assert (forkmax >= forkcnt); 2584 assert (forkmax >= forkcnt);
1908 array_verify (EV_A_ (W *)forks, forkcnt); 2585 array_verify (EV_A_ (W *)forks, forkcnt);
1909#endif 2586#endif
1910 2587
2588#if EV_CLEANUP_ENABLE
2589 assert (cleanupmax >= cleanupcnt);
2590 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2591#endif
2592
1911#if EV_ASYNC_ENABLE 2593#if EV_ASYNC_ENABLE
1912 assert (asyncmax >= asynccnt); 2594 assert (asyncmax >= asynccnt);
1913 array_verify (EV_A_ (W *)asyncs, asynccnt); 2595 array_verify (EV_A_ (W *)asyncs, asynccnt);
1914#endif 2596#endif
1915 2597
2598#if EV_PREPARE_ENABLE
1916 assert (preparemax >= preparecnt); 2599 assert (preparemax >= preparecnt);
1917 array_verify (EV_A_ (W *)prepares, preparecnt); 2600 array_verify (EV_A_ (W *)prepares, preparecnt);
2601#endif
1918 2602
2603#if EV_CHECK_ENABLE
1919 assert (checkmax >= checkcnt); 2604 assert (checkmax >= checkcnt);
1920 array_verify (EV_A_ (W *)checks, checkcnt); 2605 array_verify (EV_A_ (W *)checks, checkcnt);
2606#endif
1921 2607
1922# if 0 2608# if 0
2609#if EV_CHILD_ENABLE
1923 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)
1924 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2611 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2612#endif
1925# endif 2613# endif
1926#endif 2614#endif
1927} 2615}
1928#endif 2616#endif
1929 2617
1930#if EV_MULTIPLICITY 2618#if EV_MULTIPLICITY
1931struct ev_loop * 2619struct ev_loop * ecb_cold
1932ev_default_loop_init (unsigned int flags)
1933#else 2620#else
1934int 2621int
2622#endif
1935ev_default_loop (unsigned int flags) 2623ev_default_loop (unsigned int flags)
1936#endif
1937{ 2624{
1938 if (!ev_default_loop_ptr) 2625 if (!ev_default_loop_ptr)
1939 { 2626 {
1940#if EV_MULTIPLICITY 2627#if EV_MULTIPLICITY
1941 EV_P = ev_default_loop_ptr = &default_loop_struct; 2628 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1945 2632
1946 loop_init (EV_A_ flags); 2633 loop_init (EV_A_ flags);
1947 2634
1948 if (ev_backend (EV_A)) 2635 if (ev_backend (EV_A))
1949 { 2636 {
1950#ifndef _WIN32 2637#if EV_CHILD_ENABLE
1951 ev_signal_init (&childev, childcb, SIGCHLD); 2638 ev_signal_init (&childev, childcb, SIGCHLD);
1952 ev_set_priority (&childev, EV_MAXPRI); 2639 ev_set_priority (&childev, EV_MAXPRI);
1953 ev_signal_start (EV_A_ &childev); 2640 ev_signal_start (EV_A_ &childev);
1954 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2641 ev_unref (EV_A); /* child watcher should not keep loop alive */
1955#endif 2642#endif
… …
1960 2647
1961 return ev_default_loop_ptr; 2648 return ev_default_loop_ptr;
1962} 2649}
1963 2650
1964void 2651void
1965ev_default_destroy (void) 2652ev_loop_fork (EV_P)
1966{ 2653{
1967#if EV_MULTIPLICITY
1968 EV_P = ev_default_loop_ptr;
1969#endif
1970
1971 ev_default_loop_ptr = 0;
1972
1973#ifndef _WIN32
1974 ev_ref (EV_A); /* child watcher */
1975 ev_signal_stop (EV_A_ &childev);
1976#endif
1977
1978 loop_destroy (EV_A);
1979}
1980
1981void
1982ev_default_fork (void)
1983{
1984#if EV_MULTIPLICITY
1985 EV_P = ev_default_loop_ptr;
1986#endif
1987
1988 postfork = 1; /* must be in line with ev_loop_fork */ 2654 postfork = 1; /* must be in line with ev_default_fork */
1989} 2655}
1990 2656
1991/*****************************************************************************/ 2657/*****************************************************************************/
1992 2658
1993void 2659void
… …
2015 2681
2016 for (pri = NUMPRI; pri--; ) 2682 for (pri = NUMPRI; pri--; )
2017 while (pendingcnt [pri]) 2683 while (pendingcnt [pri])
2018 { 2684 {
2019 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2685 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2020
2021 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2022 /* ^ this is no longer true, as pending_w could be here */
2023 2686
2024 p->w->pending = 0; 2687 p->w->pending = 0;
2025 EV_CB_INVOKE (p->w, p->events); 2688 EV_CB_INVOKE (p->w, p->events);
2026 EV_FREQUENT_CHECK; 2689 EV_FREQUENT_CHECK;
2027 } 2690 }
… …
2084 EV_FREQUENT_CHECK; 2747 EV_FREQUENT_CHECK;
2085 feed_reverse (EV_A_ (W)w); 2748 feed_reverse (EV_A_ (W)w);
2086 } 2749 }
2087 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2750 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2088 2751
2089 feed_reverse_done (EV_A_ EV_TIMEOUT); 2752 feed_reverse_done (EV_A_ EV_TIMER);
2090 } 2753 }
2091} 2754}
2092 2755
2093#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
2094/* make periodics pending */ 2782/* make periodics pending */
2095inline_size void 2783inline_size void
2096periodics_reify (EV_P) 2784periodics_reify (EV_P)
2097{ 2785{
2098 EV_FREQUENT_CHECK; 2786 EV_FREQUENT_CHECK;
… …
2117 ANHE_at_cache (periodics [HEAP0]); 2805 ANHE_at_cache (periodics [HEAP0]);
2118 downheap (periodics, periodiccnt, HEAP0); 2806 downheap (periodics, periodiccnt, HEAP0);
2119 } 2807 }
2120 else if (w->interval) 2808 else if (w->interval)
2121 { 2809 {
2122 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2810 periodic_recalc (EV_A_ w);
2123 /* if next trigger time is not sufficiently in the future, put it there */
2124 /* this might happen because of floating point inexactness */
2125 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2126 {
2127 ev_at (w) += w->interval;
2128
2129 /* if interval is unreasonably low we might still have a time in the past */
2130 /* so correct this. this will make the periodic very inexact, but the user */
2131 /* has effectively asked to get triggered more often than possible */
2132 if (ev_at (w) < ev_rt_now)
2133 ev_at (w) = ev_rt_now;
2134 }
2135
2136 ANHE_at_cache (periodics [HEAP0]); 2811 ANHE_at_cache (periodics [HEAP0]);
2137 downheap (periodics, periodiccnt, HEAP0); 2812 downheap (periodics, periodiccnt, HEAP0);
2138 } 2813 }
2139 else 2814 else
2140 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2815 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2147 feed_reverse_done (EV_A_ EV_PERIODIC); 2822 feed_reverse_done (EV_A_ EV_PERIODIC);
2148 } 2823 }
2149} 2824}
2150 2825
2151/* simply recalculate all periodics */ 2826/* simply recalculate all periodics */
2152/* 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? */
2153static void noinline 2828static void noinline ecb_cold
2154periodics_reschedule (EV_P) 2829periodics_reschedule (EV_P)
2155{ 2830{
2156 int i; 2831 int i;
2157 2832
2158 /* adjust periodics after time jump */ 2833 /* adjust periodics after time jump */
… …
2161 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2836 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2162 2837
2163 if (w->reschedule_cb) 2838 if (w->reschedule_cb)
2164 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2839 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2165 else if (w->interval) 2840 else if (w->interval)
2166 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2841 periodic_recalc (EV_A_ w);
2167 2842
2168 ANHE_at_cache (periodics [i]); 2843 ANHE_at_cache (periodics [i]);
2169 } 2844 }
2170 2845
2171 reheap (periodics, periodiccnt); 2846 reheap (periodics, periodiccnt);
2172} 2847}
2173#endif 2848#endif
2174 2849
2175/* adjust all timers by a given offset */ 2850/* adjust all timers by a given offset */
2176static void noinline 2851static void noinline ecb_cold
2177timers_reschedule (EV_P_ ev_tstamp adjust) 2852timers_reschedule (EV_P_ ev_tstamp adjust)
2178{ 2853{
2179 int i; 2854 int i;
2180 2855
2181 for (i = 0; i < timercnt; ++i) 2856 for (i = 0; i < timercnt; ++i)
… …
2218 * 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
2219 * in the unlikely event of having been preempted here. 2894 * in the unlikely event of having been preempted here.
2220 */ 2895 */
2221 for (i = 4; --i; ) 2896 for (i = 4; --i; )
2222 { 2897 {
2898 ev_tstamp diff;
2223 rtmn_diff = ev_rt_now - mn_now; 2899 rtmn_diff = ev_rt_now - mn_now;
2224 2900
2901 diff = odiff - rtmn_diff;
2902
2225 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2903 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2226 return; /* all is well */ 2904 return; /* all is well */
2227 2905
2228 ev_rt_now = ev_time (); 2906 ev_rt_now = ev_time ();
2229 mn_now = get_clock (); 2907 mn_now = get_clock ();
2230 now_floor = mn_now; 2908 now_floor = mn_now;
… …
2253 mn_now = ev_rt_now; 2931 mn_now = ev_rt_now;
2254 } 2932 }
2255} 2933}
2256 2934
2257void 2935void
2258ev_loop (EV_P_ int flags) 2936ev_run (EV_P_ int flags)
2259{ 2937{
2260#if EV_MINIMAL < 2 2938#if EV_FEATURE_API
2261 ++loop_depth; 2939 ++loop_depth;
2262#endif 2940#endif
2263 2941
2264 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));
2265 2943
2266 loop_done = EVUNLOOP_CANCEL; 2944 loop_done = EVBREAK_CANCEL;
2267 2945
2268 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 */
2269 2947
2270 do 2948 do
2271 { 2949 {
2272#if EV_VERIFY >= 2 2950#if EV_VERIFY >= 2
2273 ev_loop_verify (EV_A); 2951 ev_verify (EV_A);
2274#endif 2952#endif
2275 2953
2276#ifndef _WIN32 2954#ifndef _WIN32
2277 if (expect_false (curpid)) /* penalise the forking check even more */ 2955 if (expect_false (curpid)) /* penalise the forking check even more */
2278 if (expect_false (getpid () != curpid)) 2956 if (expect_false (getpid () != curpid))
… …
2290 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2968 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2291 EV_INVOKE_PENDING; 2969 EV_INVOKE_PENDING;
2292 } 2970 }
2293#endif 2971#endif
2294 2972
2973#if EV_PREPARE_ENABLE
2295 /* queue prepare watchers (and execute them) */ 2974 /* queue prepare watchers (and execute them) */
2296 if (expect_false (preparecnt)) 2975 if (expect_false (preparecnt))
2297 { 2976 {
2298 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2977 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2299 EV_INVOKE_PENDING; 2978 EV_INVOKE_PENDING;
2300 } 2979 }
2980#endif
2301 2981
2302 if (expect_false (loop_done)) 2982 if (expect_false (loop_done))
2303 break; 2983 break;
2304 2984
2305 /* we might have forked, so reify kernel state if necessary */ 2985 /* we might have forked, so reify kernel state if necessary */
… …
2312 /* calculate blocking time */ 2992 /* calculate blocking time */
2313 { 2993 {
2314 ev_tstamp waittime = 0.; 2994 ev_tstamp waittime = 0.;
2315 ev_tstamp sleeptime = 0.; 2995 ev_tstamp sleeptime = 0.;
2316 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
2317 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3008 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2318 { 3009 {
2319 /* remember old timestamp for io_blocktime calculation */
2320 ev_tstamp prev_mn_now = mn_now;
2321
2322 /* update time to cancel out callback processing overhead */
2323 time_update (EV_A_ 1e100);
2324
2325 waittime = MAX_BLOCKTIME; 3010 waittime = MAX_BLOCKTIME;
2326 3011
2327 if (timercnt) 3012 if (timercnt)
2328 { 3013 {
2329 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3014 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2330 if (waittime > to) waittime = to; 3015 if (waittime > to) waittime = to;
2331 } 3016 }
2332 3017
2333#if EV_PERIODIC_ENABLE 3018#if EV_PERIODIC_ENABLE
2334 if (periodiccnt) 3019 if (periodiccnt)
2335 { 3020 {
2336 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3021 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2337 if (waittime > to) waittime = to; 3022 if (waittime > to) waittime = to;
2338 } 3023 }
2339#endif 3024#endif
2340 3025
2341 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3026 /* don't let timeouts decrease the waittime below timeout_blocktime */
2342 if (expect_false (waittime < timeout_blocktime)) 3027 if (expect_false (waittime < timeout_blocktime))
2343 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;
2344 3034
2345 /* extra check because io_blocktime is commonly 0 */ 3035 /* extra check because io_blocktime is commonly 0 */
2346 if (expect_false (io_blocktime)) 3036 if (expect_false (io_blocktime))
2347 { 3037 {
2348 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3038 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2349 3039
2350 if (sleeptime > waittime - backend_fudge) 3040 if (sleeptime > waittime - backend_mintime)
2351 sleeptime = waittime - backend_fudge; 3041 sleeptime = waittime - backend_mintime;
2352 3042
2353 if (expect_true (sleeptime > 0.)) 3043 if (expect_true (sleeptime > 0.))
2354 { 3044 {
2355 ev_sleep (sleeptime); 3045 ev_sleep (sleeptime);
2356 waittime -= sleeptime; 3046 waittime -= sleeptime;
2357 } 3047 }
2358 } 3048 }
2359 } 3049 }
2360 3050
2361#if EV_MINIMAL < 2 3051#if EV_FEATURE_API
2362 ++loop_count; 3052 ++loop_count;
2363#endif 3053#endif
2364 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3054 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2365 backend_poll (EV_A_ waittime); 3055 backend_poll (EV_A_ waittime);
2366 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
2367 3066
2368 /* update ev_rt_now, do magic */ 3067 /* update ev_rt_now, do magic */
2369 time_update (EV_A_ waittime + sleeptime); 3068 time_update (EV_A_ waittime + sleeptime);
2370 } 3069 }
2371 3070
… …
2378#if EV_IDLE_ENABLE 3077#if EV_IDLE_ENABLE
2379 /* queue idle watchers unless other events are pending */ 3078 /* queue idle watchers unless other events are pending */
2380 idle_reify (EV_A); 3079 idle_reify (EV_A);
2381#endif 3080#endif
2382 3081
3082#if EV_CHECK_ENABLE
2383 /* queue check watchers, to be executed first */ 3083 /* queue check watchers, to be executed first */
2384 if (expect_false (checkcnt)) 3084 if (expect_false (checkcnt))
2385 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3085 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3086#endif
2386 3087
2387 EV_INVOKE_PENDING; 3088 EV_INVOKE_PENDING;
2388 } 3089 }
2389 while (expect_true ( 3090 while (expect_true (
2390 activecnt 3091 activecnt
2391 && !loop_done 3092 && !loop_done
2392 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3093 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2393 )); 3094 ));
2394 3095
2395 if (loop_done == EVUNLOOP_ONE) 3096 if (loop_done == EVBREAK_ONE)
2396 loop_done = EVUNLOOP_CANCEL; 3097 loop_done = EVBREAK_CANCEL;
2397 3098
2398#if EV_MINIMAL < 2 3099#if EV_FEATURE_API
2399 --loop_depth; 3100 --loop_depth;
2400#endif 3101#endif
2401} 3102}
2402 3103
2403void 3104void
2404ev_unloop (EV_P_ int how) 3105ev_break (EV_P_ int how)
2405{ 3106{
2406 loop_done = how; 3107 loop_done = how;
2407} 3108}
2408 3109
2409void 3110void
… …
2557 EV_FREQUENT_CHECK; 3258 EV_FREQUENT_CHECK;
2558 3259
2559 wlist_del (&anfds[w->fd].head, (WL)w); 3260 wlist_del (&anfds[w->fd].head, (WL)w);
2560 ev_stop (EV_A_ (W)w); 3261 ev_stop (EV_A_ (W)w);
2561 3262
2562 fd_change (EV_A_ w->fd, 1); 3263 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2563 3264
2564 EV_FREQUENT_CHECK; 3265 EV_FREQUENT_CHECK;
2565} 3266}
2566 3267
2567void noinline 3268void noinline
… …
2620 3321
2621void noinline 3322void noinline
2622ev_timer_again (EV_P_ ev_timer *w) 3323ev_timer_again (EV_P_ ev_timer *w)
2623{ 3324{
2624 EV_FREQUENT_CHECK; 3325 EV_FREQUENT_CHECK;
3326
3327 clear_pending (EV_A_ (W)w);
2625 3328
2626 if (ev_is_active (w)) 3329 if (ev_is_active (w))
2627 { 3330 {
2628 if (w->repeat) 3331 if (w->repeat)
2629 { 3332 {
… …
2659 if (w->reschedule_cb) 3362 if (w->reschedule_cb)
2660 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3363 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2661 else if (w->interval) 3364 else if (w->interval)
2662 { 3365 {
2663 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3366 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2664 /* this formula differs from the one in periodic_reify because we do not always round up */ 3367 periodic_recalc (EV_A_ w);
2665 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2666 } 3368 }
2667 else 3369 else
2668 ev_at (w) = w->offset; 3370 ev_at (w) = w->offset;
2669 3371
2670 EV_FREQUENT_CHECK; 3372 EV_FREQUENT_CHECK;
… …
2719#endif 3421#endif
2720 3422
2721#ifndef SA_RESTART 3423#ifndef SA_RESTART
2722# define SA_RESTART 0 3424# define SA_RESTART 0
2723#endif 3425#endif
3426
3427#if EV_SIGNAL_ENABLE
2724 3428
2725void noinline 3429void noinline
2726ev_signal_start (EV_P_ ev_signal *w) 3430ev_signal_start (EV_P_ ev_signal *w)
2727{ 3431{
2728 if (expect_false (ev_is_active (w))) 3432 if (expect_false (ev_is_active (w)))
… …
2789 sa.sa_handler = ev_sighandler; 3493 sa.sa_handler = ev_sighandler;
2790 sigfillset (&sa.sa_mask); 3494 sigfillset (&sa.sa_mask);
2791 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3495 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2792 sigaction (w->signum, &sa, 0); 3496 sigaction (w->signum, &sa, 0);
2793 3497
3498 if (origflags & EVFLAG_NOSIGMASK)
3499 {
2794 sigemptyset (&sa.sa_mask); 3500 sigemptyset (&sa.sa_mask);
2795 sigaddset (&sa.sa_mask, w->signum); 3501 sigaddset (&sa.sa_mask, w->signum);
2796 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3502 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3503 }
2797#endif 3504#endif
2798 } 3505 }
2799 3506
2800 EV_FREQUENT_CHECK; 3507 EV_FREQUENT_CHECK;
2801} 3508}
… …
2835 } 3542 }
2836 3543
2837 EV_FREQUENT_CHECK; 3544 EV_FREQUENT_CHECK;
2838} 3545}
2839 3546
3547#endif
3548
3549#if EV_CHILD_ENABLE
3550
2840void 3551void
2841ev_child_start (EV_P_ ev_child *w) 3552ev_child_start (EV_P_ ev_child *w)
2842{ 3553{
2843#if EV_MULTIPLICITY 3554#if EV_MULTIPLICITY
2844 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3555 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2847 return; 3558 return;
2848 3559
2849 EV_FREQUENT_CHECK; 3560 EV_FREQUENT_CHECK;
2850 3561
2851 ev_start (EV_A_ (W)w, 1); 3562 ev_start (EV_A_ (W)w, 1);
2852 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3563 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2853 3564
2854 EV_FREQUENT_CHECK; 3565 EV_FREQUENT_CHECK;
2855} 3566}
2856 3567
2857void 3568void
… …
2861 if (expect_false (!ev_is_active (w))) 3572 if (expect_false (!ev_is_active (w)))
2862 return; 3573 return;
2863 3574
2864 EV_FREQUENT_CHECK; 3575 EV_FREQUENT_CHECK;
2865 3576
2866 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3577 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2867 ev_stop (EV_A_ (W)w); 3578 ev_stop (EV_A_ (W)w);
2868 3579
2869 EV_FREQUENT_CHECK; 3580 EV_FREQUENT_CHECK;
2870} 3581}
3582
3583#endif
2871 3584
2872#if EV_STAT_ENABLE 3585#if EV_STAT_ENABLE
2873 3586
2874# ifdef _WIN32 3587# ifdef _WIN32
2875# undef lstat 3588# undef lstat
… …
2936 if (!pend || pend == path) 3649 if (!pend || pend == path)
2937 break; 3650 break;
2938 3651
2939 *pend = 0; 3652 *pend = 0;
2940 w->wd = inotify_add_watch (fs_fd, path, mask); 3653 w->wd = inotify_add_watch (fs_fd, path, mask);
2941 } 3654 }
2942 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3655 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2943 } 3656 }
2944 } 3657 }
2945 3658
2946 if (w->wd >= 0) 3659 if (w->wd >= 0)
2947 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3660 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2948 3661
2949 /* now re-arm timer, if required */ 3662 /* now re-arm timer, if required */
2950 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3663 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2951 ev_timer_again (EV_A_ &w->timer); 3664 ev_timer_again (EV_A_ &w->timer);
2952 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3665 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2960 3673
2961 if (wd < 0) 3674 if (wd < 0)
2962 return; 3675 return;
2963 3676
2964 w->wd = -2; 3677 w->wd = -2;
2965 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3678 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2966 wlist_del (&fs_hash [slot].head, (WL)w); 3679 wlist_del (&fs_hash [slot].head, (WL)w);
2967 3680
2968 /* remove this watcher, if others are watching it, they will rearm */ 3681 /* remove this watcher, if others are watching it, they will rearm */
2969 inotify_rm_watch (fs_fd, wd); 3682 inotify_rm_watch (fs_fd, wd);
2970} 3683}
… …
2972static void noinline 3685static void noinline
2973infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3686infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2974{ 3687{
2975 if (slot < 0) 3688 if (slot < 0)
2976 /* overflow, need to check for all hash slots */ 3689 /* overflow, need to check for all hash slots */
2977 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3690 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2978 infy_wd (EV_A_ slot, wd, ev); 3691 infy_wd (EV_A_ slot, wd, ev);
2979 else 3692 else
2980 { 3693 {
2981 WL w_; 3694 WL w_;
2982 3695
2983 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3696 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2984 { 3697 {
2985 ev_stat *w = (ev_stat *)w_; 3698 ev_stat *w = (ev_stat *)w_;
2986 w_ = w_->next; /* lets us remove this watcher and all before it */ 3699 w_ = w_->next; /* lets us remove this watcher and all before it */
2987 3700
2988 if (w->wd == wd || wd == -1) 3701 if (w->wd == wd || wd == -1)
2989 { 3702 {
2990 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3703 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2991 { 3704 {
2992 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3705 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2993 w->wd = -1; 3706 w->wd = -1;
2994 infy_add (EV_A_ w); /* re-add, no matter what */ 3707 infy_add (EV_A_ w); /* re-add, no matter what */
2995 } 3708 }
2996 3709
2997 stat_timer_cb (EV_A_ &w->timer, 0); 3710 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3013 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3726 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3014 ofs += sizeof (struct inotify_event) + ev->len; 3727 ofs += sizeof (struct inotify_event) + ev->len;
3015 } 3728 }
3016} 3729}
3017 3730
3018inline_size unsigned int
3019ev_linux_version (void)
3020{
3021 struct utsname buf;
3022 unsigned int v;
3023 int i;
3024 char *p = buf.release;
3025
3026 if (uname (&buf))
3027 return 0;
3028
3029 for (i = 3+1; --i; )
3030 {
3031 unsigned int c = 0;
3032
3033 for (;;)
3034 {
3035 if (*p >= '0' && *p <= '9')
3036 c = c * 10 + *p++ - '0';
3037 else
3038 {
3039 p += *p == '.';
3040 break;
3041 }
3042 }
3043
3044 v = (v << 8) | c;
3045 }
3046
3047 return v;
3048}
3049
3050inline_size void 3731inline_size void ecb_cold
3051ev_check_2625 (EV_P) 3732ev_check_2625 (EV_P)
3052{ 3733{
3053 /* kernels < 2.6.25 are borked 3734 /* kernels < 2.6.25 are borked
3054 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3735 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3055 */ 3736 */
… …
3060} 3741}
3061 3742
3062inline_size int 3743inline_size int
3063infy_newfd (void) 3744infy_newfd (void)
3064{ 3745{
3065#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3746#if defined IN_CLOEXEC && defined IN_NONBLOCK
3066 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3747 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3067 if (fd >= 0) 3748 if (fd >= 0)
3068 return fd; 3749 return fd;
3069#endif 3750#endif
3070 return inotify_init (); 3751 return inotify_init ();
… …
3111 ev_io_set (&fs_w, fs_fd, EV_READ); 3792 ev_io_set (&fs_w, fs_fd, EV_READ);
3112 ev_io_start (EV_A_ &fs_w); 3793 ev_io_start (EV_A_ &fs_w);
3113 ev_unref (EV_A); 3794 ev_unref (EV_A);
3114 } 3795 }
3115 3796
3116 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3797 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3117 { 3798 {
3118 WL w_ = fs_hash [slot].head; 3799 WL w_ = fs_hash [slot].head;
3119 fs_hash [slot].head = 0; 3800 fs_hash [slot].head = 0;
3120 3801
3121 while (w_) 3802 while (w_)
… …
3296 3977
3297 EV_FREQUENT_CHECK; 3978 EV_FREQUENT_CHECK;
3298} 3979}
3299#endif 3980#endif
3300 3981
3982#if EV_PREPARE_ENABLE
3301void 3983void
3302ev_prepare_start (EV_P_ ev_prepare *w) 3984ev_prepare_start (EV_P_ ev_prepare *w)
3303{ 3985{
3304 if (expect_false (ev_is_active (w))) 3986 if (expect_false (ev_is_active (w)))
3305 return; 3987 return;
… …
3331 4013
3332 ev_stop (EV_A_ (W)w); 4014 ev_stop (EV_A_ (W)w);
3333 4015
3334 EV_FREQUENT_CHECK; 4016 EV_FREQUENT_CHECK;
3335} 4017}
4018#endif
3336 4019
4020#if EV_CHECK_ENABLE
3337void 4021void
3338ev_check_start (EV_P_ ev_check *w) 4022ev_check_start (EV_P_ ev_check *w)
3339{ 4023{
3340 if (expect_false (ev_is_active (w))) 4024 if (expect_false (ev_is_active (w)))
3341 return; 4025 return;
… …
3367 4051
3368 ev_stop (EV_A_ (W)w); 4052 ev_stop (EV_A_ (W)w);
3369 4053
3370 EV_FREQUENT_CHECK; 4054 EV_FREQUENT_CHECK;
3371} 4055}
4056#endif
3372 4057
3373#if EV_EMBED_ENABLE 4058#if EV_EMBED_ENABLE
3374void noinline 4059void noinline
3375ev_embed_sweep (EV_P_ ev_embed *w) 4060ev_embed_sweep (EV_P_ ev_embed *w)
3376{ 4061{
3377 ev_loop (w->other, EVLOOP_NONBLOCK); 4062 ev_run (w->other, EVRUN_NOWAIT);
3378} 4063}
3379 4064
3380static void 4065static void
3381embed_io_cb (EV_P_ ev_io *io, int revents) 4066embed_io_cb (EV_P_ ev_io *io, int revents)
3382{ 4067{
3383 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4068 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3384 4069
3385 if (ev_cb (w)) 4070 if (ev_cb (w))
3386 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4071 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3387 else 4072 else
3388 ev_loop (w->other, EVLOOP_NONBLOCK); 4073 ev_run (w->other, EVRUN_NOWAIT);
3389} 4074}
3390 4075
3391static void 4076static void
3392embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4077embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3393{ 4078{
… …
3397 EV_P = w->other; 4082 EV_P = w->other;
3398 4083
3399 while (fdchangecnt) 4084 while (fdchangecnt)
3400 { 4085 {
3401 fd_reify (EV_A); 4086 fd_reify (EV_A);
3402 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4087 ev_run (EV_A_ EVRUN_NOWAIT);
3403 } 4088 }
3404 } 4089 }
3405} 4090}
3406 4091
3407static void 4092static void
… …
3413 4098
3414 { 4099 {
3415 EV_P = w->other; 4100 EV_P = w->other;
3416 4101
3417 ev_loop_fork (EV_A); 4102 ev_loop_fork (EV_A);
3418 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4103 ev_run (EV_A_ EVRUN_NOWAIT);
3419 } 4104 }
3420 4105
3421 ev_embed_start (EV_A_ w); 4106 ev_embed_start (EV_A_ w);
3422} 4107}
3423 4108
… …
3515 4200
3516 EV_FREQUENT_CHECK; 4201 EV_FREQUENT_CHECK;
3517} 4202}
3518#endif 4203#endif
3519 4204
4205#if EV_CLEANUP_ENABLE
4206void
4207ev_cleanup_start (EV_P_ ev_cleanup *w)
4208{
4209 if (expect_false (ev_is_active (w)))
4210 return;
4211
4212 EV_FREQUENT_CHECK;
4213
4214 ev_start (EV_A_ (W)w, ++cleanupcnt);
4215 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4216 cleanups [cleanupcnt - 1] = w;
4217
4218 /* cleanup watchers should never keep a refcount on the loop */
4219 ev_unref (EV_A);
4220 EV_FREQUENT_CHECK;
4221}
4222
4223void
4224ev_cleanup_stop (EV_P_ ev_cleanup *w)
4225{
4226 clear_pending (EV_A_ (W)w);
4227 if (expect_false (!ev_is_active (w)))
4228 return;
4229
4230 EV_FREQUENT_CHECK;
4231 ev_ref (EV_A);
4232
4233 {
4234 int active = ev_active (w);
4235
4236 cleanups [active - 1] = cleanups [--cleanupcnt];
4237 ev_active (cleanups [active - 1]) = active;
4238 }
4239
4240 ev_stop (EV_A_ (W)w);
4241
4242 EV_FREQUENT_CHECK;
4243}
4244#endif
4245
3520#if EV_ASYNC_ENABLE 4246#if EV_ASYNC_ENABLE
3521void 4247void
3522ev_async_start (EV_P_ ev_async *w) 4248ev_async_start (EV_P_ ev_async *w)
3523{ 4249{
3524 if (expect_false (ev_is_active (w))) 4250 if (expect_false (ev_is_active (w)))
3525 return; 4251 return;
4252
4253 w->sent = 0;
3526 4254
3527 evpipe_init (EV_A); 4255 evpipe_init (EV_A);
3528 4256
3529 EV_FREQUENT_CHECK; 4257 EV_FREQUENT_CHECK;
3530 4258
… …
3608{ 4336{
3609 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4337 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3610 4338
3611 if (expect_false (!once)) 4339 if (expect_false (!once))
3612 { 4340 {
3613 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4341 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3614 return; 4342 return;
3615 } 4343 }
3616 4344
3617 once->cb = cb; 4345 once->cb = cb;
3618 once->arg = arg; 4346 once->arg = arg;
… …
3633} 4361}
3634 4362
3635/*****************************************************************************/ 4363/*****************************************************************************/
3636 4364
3637#if EV_WALK_ENABLE 4365#if EV_WALK_ENABLE
3638void 4366void ecb_cold
3639ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4367ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3640{ 4368{
3641 int i, j; 4369 int i, j;
3642 ev_watcher_list *wl, *wn; 4370 ev_watcher_list *wl, *wn;
3643 4371
… …
3687 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4415 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3688#endif 4416#endif
3689 4417
3690#if EV_IDLE_ENABLE 4418#if EV_IDLE_ENABLE
3691 if (types & EV_IDLE) 4419 if (types & EV_IDLE)
3692 for (j = NUMPRI; i--; ) 4420 for (j = NUMPRI; j--; )
3693 for (i = idlecnt [j]; i--; ) 4421 for (i = idlecnt [j]; i--; )
3694 cb (EV_A_ EV_IDLE, idles [j][i]); 4422 cb (EV_A_ EV_IDLE, idles [j][i]);
3695#endif 4423#endif
3696 4424
3697#if EV_FORK_ENABLE 4425#if EV_FORK_ENABLE
… …
3705 if (types & EV_ASYNC) 4433 if (types & EV_ASYNC)
3706 for (i = asynccnt; i--; ) 4434 for (i = asynccnt; i--; )
3707 cb (EV_A_ EV_ASYNC, asyncs [i]); 4435 cb (EV_A_ EV_ASYNC, asyncs [i]);
3708#endif 4436#endif
3709 4437
4438#if EV_PREPARE_ENABLE
3710 if (types & EV_PREPARE) 4439 if (types & EV_PREPARE)
3711 for (i = preparecnt; i--; ) 4440 for (i = preparecnt; i--; )
3712#if EV_EMBED_ENABLE 4441# if EV_EMBED_ENABLE
3713 if (ev_cb (prepares [i]) != embed_prepare_cb) 4442 if (ev_cb (prepares [i]) != embed_prepare_cb)
3714#endif 4443# endif
3715 cb (EV_A_ EV_PREPARE, prepares [i]); 4444 cb (EV_A_ EV_PREPARE, prepares [i]);
4445#endif
3716 4446
4447#if EV_CHECK_ENABLE
3717 if (types & EV_CHECK) 4448 if (types & EV_CHECK)
3718 for (i = checkcnt; i--; ) 4449 for (i = checkcnt; i--; )
3719 cb (EV_A_ EV_CHECK, checks [i]); 4450 cb (EV_A_ EV_CHECK, checks [i]);
4451#endif
3720 4452
4453#if EV_SIGNAL_ENABLE
3721 if (types & EV_SIGNAL) 4454 if (types & EV_SIGNAL)
3722 for (i = 0; i < EV_NSIG - 1; ++i) 4455 for (i = 0; i < EV_NSIG - 1; ++i)
3723 for (wl = signals [i].head; wl; ) 4456 for (wl = signals [i].head; wl; )
3724 { 4457 {
3725 wn = wl->next; 4458 wn = wl->next;
3726 cb (EV_A_ EV_SIGNAL, wl); 4459 cb (EV_A_ EV_SIGNAL, wl);
3727 wl = wn; 4460 wl = wn;
3728 } 4461 }
4462#endif
3729 4463
4464#if EV_CHILD_ENABLE
3730 if (types & EV_CHILD) 4465 if (types & EV_CHILD)
3731 for (i = EV_PID_HASHSIZE; i--; ) 4466 for (i = (EV_PID_HASHSIZE); i--; )
3732 for (wl = childs [i]; wl; ) 4467 for (wl = childs [i]; wl; )
3733 { 4468 {
3734 wn = wl->next; 4469 wn = wl->next;
3735 cb (EV_A_ EV_CHILD, wl); 4470 cb (EV_A_ EV_CHILD, wl);
3736 wl = wn; 4471 wl = wn;
3737 } 4472 }
4473#endif
3738/* EV_STAT 0x00001000 /* stat data changed */ 4474/* EV_STAT 0x00001000 /* stat data changed */
3739/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4475/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3740} 4476}
3741#endif 4477#endif
3742 4478
3743#if EV_MULTIPLICITY 4479#if EV_MULTIPLICITY
3744 #include "ev_wrap.h" 4480 #include "ev_wrap.h"
3745#endif 4481#endif
3746 4482
3747#ifdef __cplusplus
3748}
3749#endif
3750

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