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Comparing libev/ev.c (file contents):
Revision 1.330 by root, Tue Mar 9 08:46:17 2010 UTC vs.
Revision 1.413 by root, Fri Mar 23 19:06:08 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
… …
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>
… …
184# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
185# include <windows.h> 206# include <windows.h>
186# ifndef EV_SELECT_IS_WINSOCKET 207# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 208# define EV_SELECT_IS_WINSOCKET 1
188# endif 209# endif
210# undef EV_AVOID_STDIO
189#endif 211#endif
212
213/* OS X, in its infinite idiocy, actually HARDCODES
214 * a limit of 1024 into their select. Where people have brains,
215 * OS X engineers apparently have a vacuum. Or maybe they were
216 * ordered to have a vacuum, or they do anything for money.
217 * This might help. Or not.
218 */
219#define _DARWIN_UNLIMITED_SELECT 1
190 220
191/* 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 */
192 222
193/* try to deduce the maximum number of signals on this platform */ 223/* try to deduce the maximum number of signals on this platform */
194#if defined (EV_NSIG) 224#if defined (EV_NSIG)
… …
206#elif defined (MAXSIG) 236#elif defined (MAXSIG)
207# define EV_NSIG (MAXSIG+1) 237# define EV_NSIG (MAXSIG+1)
208#elif defined (MAX_SIG) 238#elif defined (MAX_SIG)
209# define EV_NSIG (MAX_SIG+1) 239# define EV_NSIG (MAX_SIG+1)
210#elif defined (SIGARRAYSIZE) 240#elif defined (SIGARRAYSIZE)
211# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
212#elif defined (_sys_nsig) 242#elif defined (_sys_nsig)
213# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
214#else 244#else
215# error "unable to find value for NSIG, please report" 245# error "unable to find value for NSIG, please report"
216/* 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! :) */
217# define EV_NSIG 65 248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
218#endif 253#endif
219 254
220#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
221# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
222# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
223# else 258# else
224# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
225# endif 260# endif
226#endif 261#endif
227 262
228#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
229# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
230# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
231# else 266# else
232# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
233# endif 268# endif
234#endif 269#endif
235 270
… …
237# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
238#endif 273#endif
239 274
240#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
241# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
242# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
243# else 278# else
244# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
245# endif 280# endif
246#endif 281#endif
247 282
248#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
249# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
250#endif 285#endif
251 286
252#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
253# ifdef _WIN32 288# ifdef _WIN32
254# define EV_USE_POLL 0 289# define EV_USE_POLL 0
255# else 290# else
256# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
257# endif 292# endif
258#endif 293#endif
259 294
260#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
261# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
262# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
263# else 298# else
264# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
265# endif 300# endif
266#endif 301#endif
267 302
… …
273# define EV_USE_PORT 0 308# define EV_USE_PORT 0
274#endif 309#endif
275 310
276#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
277# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
278# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
279# else 314# else
280# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
281# endif 316# endif
282#endif 317#endif
283 318
284#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
285# if EV_MINIMAL 320# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
286# define EV_PID_HASHSIZE 1
287# else
288# define EV_PID_HASHSIZE 16
289# endif
290#endif 321#endif
291 322
292#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
293# if EV_MINIMAL 324# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
294# define EV_INOTIFY_HASHSIZE 1
295# else
296# define EV_INOTIFY_HASHSIZE 16
297# endif
298#endif 325#endif
299 326
300#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
301# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
302# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
303# else 330# else
304# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
305# endif 332# endif
306#endif 333#endif
307 334
308#ifndef EV_USE_SIGNALFD 335#ifndef EV_USE_SIGNALFD
309# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
310# define EV_USE_SIGNALFD 1 337# define EV_USE_SIGNALFD EV_FEATURE_OS
311# else 338# else
312# define EV_USE_SIGNALFD 0 339# define EV_USE_SIGNALFD 0
313# endif 340# endif
314#endif 341#endif
315 342
… …
318# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
319# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
320#endif 347#endif
321 348
322#ifndef EV_VERIFY 349#ifndef EV_VERIFY
323# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
324#endif 351#endif
325 352
326#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
327# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
328#endif 355#endif
329 356
330#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
331# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
332#endif 359#endif
333 360
334/* 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, */
335/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
336#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
… …
367# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
368# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
369#endif 396#endif
370 397
371#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
372# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined(_WIN32) && !defined(__hpux)
373# include <sys/select.h> 401# include <sys/select.h>
374# endif 402# endif
375#endif 403#endif
376 404
377#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
378# include <sys/utsname.h>
379# include <sys/statfs.h> 406# include <sys/statfs.h>
380# include <sys/inotify.h> 407# include <sys/inotify.h>
381/* 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 */
382# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
383# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
400# define EFD_CLOEXEC O_CLOEXEC 427# define EFD_CLOEXEC O_CLOEXEC
401# else 428# else
402# define EFD_CLOEXEC 02000000 429# define EFD_CLOEXEC 02000000
403# endif 430# endif
404# endif 431# endif
405# ifdef __cplusplus
406extern "C" {
407# endif
408int (eventfd) (unsigned int initval, int flags); 432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
409# ifdef __cplusplus
410}
411# endif
412#endif 433#endif
413 434
414#if EV_USE_SIGNALFD 435#if EV_USE_SIGNALFD
415/* 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 */
416# include <stdint.h> 437# include <stdint.h>
… …
422# define SFD_CLOEXEC O_CLOEXEC 443# define SFD_CLOEXEC O_CLOEXEC
423# else 444# else
424# define SFD_CLOEXEC 02000000 445# define SFD_CLOEXEC 02000000
425# endif 446# endif
426# endif 447# endif
427# ifdef __cplusplus
428extern "C" {
429# endif
430int signalfd (int fd, const sigset_t *mask, int flags); 448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
431 449
432struct signalfd_siginfo 450struct signalfd_siginfo
433{ 451{
434 uint32_t ssi_signo; 452 uint32_t ssi_signo;
435 char pad[128 - sizeof (uint32_t)]; 453 char pad[128 - sizeof (uint32_t)];
436}; 454};
437# ifdef __cplusplus
438}
439# endif 455#endif
440#endif
441
442 456
443/**/ 457/**/
444 458
445#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
446# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
447#else 461#else
448# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
449#endif 463#endif
450 464
451/* 465/*
452 * This is used to avoid floating point rounding problems. 466 * This is used to work around floating point rounding problems.
453 * It is added to ev_rt_now when scheduling periodics
454 * to ensure progress, time-wise, even when rounding
455 * errors are against us.
456 * This value is good at least till the year 4000. 467 * This value is good at least till the year 4000.
457 * Better solutions welcome.
458 */ 468 */
459#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 */
460 471
461#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) */
462#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) */
463 474
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;
464#if __GNUC__ >= 4 519 #if __GNUC__
465# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
466# 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
467#else 526#else
468# define expect(expr,value) (expr) 527 #include <inttypes.h>
469# define noinline
470# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
471# define inline
472# 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)))
473#endif 542 #endif
543#endif
474 544
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 __lwsync ()
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. */
475#define expect_false(expr) expect ((expr) != 0, 0) 706#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
476#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
477#define inline_size static inline 958#define inline_size ecb_inline
478 959
479#if EV_MINIMAL 960#if EV_FEATURE_CODE
961# define inline_speed ecb_inline
962#else
480# define inline_speed static noinline 963# define inline_speed static noinline
481#else
482# define inline_speed static inline
483#endif 964#endif
484 965
485#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 966#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
486 967
487#if EV_MINPRI == EV_MAXPRI 968#if EV_MINPRI == EV_MAXPRI
… …
500#define ev_active(w) ((W)(w))->active 981#define ev_active(w) ((W)(w))->active
501#define ev_at(w) ((WT)(w))->at 982#define ev_at(w) ((WT)(w))->at
502 983
503#if EV_USE_REALTIME 984#if EV_USE_REALTIME
504/* 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 */
505/* giving it a reasonably high chance of working on typical architetcures */ 986/* giving it a reasonably high chance of working on typical architectures */
506static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 987static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
507#endif 988#endif
508 989
509#if EV_USE_MONOTONIC 990#if EV_USE_MONOTONIC
510static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 991static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
524# include "ev_win32.c" 1005# include "ev_win32.c"
525#endif 1006#endif
526 1007
527/*****************************************************************************/ 1008/*****************************************************************************/
528 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
1100#if EV_AVOID_STDIO
1101static void noinline ecb_cold
1102ev_printerr (const char *msg)
1103{
1104 write (STDERR_FILENO, msg, strlen (msg));
1105}
1106#endif
1107
529static void (*syserr_cb)(const char *msg); 1108static void (*syserr_cb)(const char *msg);
530 1109
531void 1110void ecb_cold
532ev_set_syserr_cb (void (*cb)(const char *msg)) 1111ev_set_syserr_cb (void (*cb)(const char *msg))
533{ 1112{
534 syserr_cb = cb; 1113 syserr_cb = cb;
535} 1114}
536 1115
537static void noinline 1116static void noinline ecb_cold
538ev_syserr (const char *msg) 1117ev_syserr (const char *msg)
539{ 1118{
540 if (!msg) 1119 if (!msg)
541 msg = "(libev) system error"; 1120 msg = "(libev) system error";
542 1121
543 if (syserr_cb) 1122 if (syserr_cb)
544 syserr_cb (msg); 1123 syserr_cb (msg);
545 else 1124 else
546 { 1125 {
547#if EV_AVOID_STDIO 1126#if EV_AVOID_STDIO
548 write (STDERR_FILENO, msg, strlen (msg)); 1127 ev_printerr (msg);
549 write (STDERR_FILENO, ": ", 2); 1128 ev_printerr (": ");
550 msg = strerror (errno); 1129 ev_printerr (strerror (errno));
551 write (STDERR_FILENO, msg, strlen (msg)); 1130 ev_printerr ("\n");
552 write (STDERR_FILENO, "\n", 1);
553#else 1131#else
554 perror (msg); 1132 perror (msg);
555#endif 1133#endif
556 abort (); 1134 abort ();
557 } 1135 }
558} 1136}
559 1137
560static void * 1138static void *
561ev_realloc_emul (void *ptr, long size) 1139ev_realloc_emul (void *ptr, long size)
562{ 1140{
1141#if __GLIBC__
1142 return realloc (ptr, size);
1143#else
563 /* some systems, notably openbsd and darwin, fail to properly 1144 /* some systems, notably openbsd and darwin, fail to properly
564 * 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
565 * the single unix specification, so work around them here. 1146 * the single unix specification, so work around them here.
566 */ 1147 */
567 1148
568 if (size) 1149 if (size)
569 return realloc (ptr, size); 1150 return realloc (ptr, size);
570 1151
571 free (ptr); 1152 free (ptr);
572 return 0; 1153 return 0;
1154#endif
573} 1155}
574 1156
575static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1157static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
576 1158
577void 1159void ecb_cold
578ev_set_allocator (void *(*cb)(void *ptr, long size)) 1160ev_set_allocator (void *(*cb)(void *ptr, long size))
579{ 1161{
580 alloc = cb; 1162 alloc = cb;
581} 1163}
582 1164
… …
586 ptr = alloc (ptr, size); 1168 ptr = alloc (ptr, size);
587 1169
588 if (!ptr && size) 1170 if (!ptr && size)
589 { 1171 {
590#if EV_AVOID_STDIO 1172#if EV_AVOID_STDIO
591 write (STDERR_FILENO, "libev: memory allocation failed, aborting.", 1173 ev_printerr ("(libev) memory allocation failed, aborting.\n");
592 sizeof ("libev: memory allocation failed, aborting.") - 1);
593#else 1174#else
594 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1175 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
595#endif 1176#endif
596 abort (); 1177 abort ();
597 } 1178 }
598 1179
599 return ptr; 1180 return ptr;
… …
616 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 */
617 unsigned char unused; 1198 unsigned char unused;
618#if EV_USE_EPOLL 1199#if EV_USE_EPOLL
619 unsigned int egen; /* generation counter to counter epoll bugs */ 1200 unsigned int egen; /* generation counter to counter epoll bugs */
620#endif 1201#endif
621#if EV_SELECT_IS_WINSOCKET 1202#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
622 SOCKET handle; 1203 SOCKET handle;
1204#endif
1205#if EV_USE_IOCP
1206 OVERLAPPED or, ow;
623#endif 1207#endif
624} ANFD; 1208} ANFD;
625 1209
626/* stores the pending event set for a given watcher */ 1210/* stores the pending event set for a given watcher */
627typedef struct 1211typedef struct
… …
669 #undef VAR 1253 #undef VAR
670 }; 1254 };
671 #include "ev_wrap.h" 1255 #include "ev_wrap.h"
672 1256
673 static struct ev_loop default_loop_struct; 1257 static struct ev_loop default_loop_struct;
674 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 */
675 1259
676#else 1260#else
677 1261
678 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 */
679 #define VAR(name,decl) static decl; 1263 #define VAR(name,decl) static decl;
680 #include "ev_vars.h" 1264 #include "ev_vars.h"
681 #undef VAR 1265 #undef VAR
682 1266
683 static int ev_default_loop_ptr; 1267 static int ev_default_loop_ptr;
684 1268
685#endif 1269#endif
686 1270
687#if EV_MINIMAL < 2 1271#if EV_FEATURE_API
688# 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)
689# 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)
690# define EV_INVOKE_PENDING invoke_cb (EV_A) 1274# define EV_INVOKE_PENDING invoke_cb (EV_A)
691#else 1275#else
692# define EV_RELEASE_CB (void)0 1276# define EV_RELEASE_CB (void)0
693# define EV_ACQUIRE_CB (void)0 1277# define EV_ACQUIRE_CB (void)0
694# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1278# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
695#endif 1279#endif
696 1280
697#define EVUNLOOP_RECURSE 0x80 1281#define EVBREAK_RECURSE 0x80
698 1282
699/*****************************************************************************/ 1283/*****************************************************************************/
700 1284
701#ifndef EV_HAVE_EV_TIME 1285#ifndef EV_HAVE_EV_TIME
702ev_tstamp 1286ev_tstamp
… …
746 if (delay > 0.) 1330 if (delay > 0.)
747 { 1331 {
748#if EV_USE_NANOSLEEP 1332#if EV_USE_NANOSLEEP
749 struct timespec ts; 1333 struct timespec ts;
750 1334
751 ts.tv_sec = (time_t)delay; 1335 EV_TS_SET (ts, delay);
752 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
753
754 nanosleep (&ts, 0); 1336 nanosleep (&ts, 0);
755#elif defined(_WIN32) 1337#elif defined(_WIN32)
756 Sleep ((unsigned long)(delay * 1e3)); 1338 Sleep ((unsigned long)(delay * 1e3));
757#else 1339#else
758 struct timeval tv; 1340 struct timeval tv;
759 1341
760 tv.tv_sec = (time_t)delay;
761 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
762
763 /* 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 */
764 /* something not guaranteed by newer posix versions, but guaranteed */ 1343 /* something not guaranteed by newer posix versions, but guaranteed */
765 /* by older ones */ 1344 /* by older ones */
1345 EV_TV_SET (tv, delay);
766 select (0, 0, 0, 0, &tv); 1346 select (0, 0, 0, 0, &tv);
767#endif 1347#endif
768 } 1348 }
769} 1349}
770 1350
771/*****************************************************************************/ 1351/*****************************************************************************/
772 1352
773#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 */
774 1354
775/* find a suitable new size for the given array, */ 1355/* find a suitable new size for the given array, */
776/* hopefully by rounding to a ncie-to-malloc size */ 1356/* hopefully by rounding to a nice-to-malloc size */
777inline_size int 1357inline_size int
778array_nextsize (int elem, int cur, int cnt) 1358array_nextsize (int elem, int cur, int cnt)
779{ 1359{
780 int ncur = cur + 1; 1360 int ncur = cur + 1;
781 1361
782 do 1362 do
783 ncur <<= 1; 1363 ncur <<= 1;
784 while (cnt > ncur); 1364 while (cnt > ncur);
785 1365
786 /* 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 */
787 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1367 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
788 { 1368 {
789 ncur *= elem; 1369 ncur *= elem;
790 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);
791 ncur = ncur - sizeof (void *) * 4; 1371 ncur = ncur - sizeof (void *) * 4;
… …
793 } 1373 }
794 1374
795 return ncur; 1375 return ncur;
796} 1376}
797 1377
798static noinline void * 1378static void * noinline ecb_cold
799array_realloc (int elem, void *base, int *cur, int cnt) 1379array_realloc (int elem, void *base, int *cur, int cnt)
800{ 1380{
801 *cur = array_nextsize (elem, *cur, cnt); 1381 *cur = array_nextsize (elem, *cur, cnt);
802 return ev_realloc (base, elem * *cur); 1382 return ev_realloc (base, elem * *cur);
803} 1383}
… …
806 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1386 memset ((void *)(base), 0, sizeof (*(base)) * (count))
807 1387
808#define array_needsize(type,base,cur,cnt,init) \ 1388#define array_needsize(type,base,cur,cnt,init) \
809 if (expect_false ((cnt) > (cur))) \ 1389 if (expect_false ((cnt) > (cur))) \
810 { \ 1390 { \
811 int ocur_ = (cur); \ 1391 int ecb_unused ocur_ = (cur); \
812 (base) = (type *)array_realloc \ 1392 (base) = (type *)array_realloc \
813 (sizeof (type), (base), &(cur), (cnt)); \ 1393 (sizeof (type), (base), &(cur), (cnt)); \
814 init ((base) + (ocur_), (cur) - ocur_); \ 1394 init ((base) + (ocur_), (cur) - ocur_); \
815 } 1395 }
816 1396
… …
877} 1457}
878 1458
879/*****************************************************************************/ 1459/*****************************************************************************/
880 1460
881inline_speed void 1461inline_speed void
882fd_event_nc (EV_P_ int fd, int revents) 1462fd_event_nocheck (EV_P_ int fd, int revents)
883{ 1463{
884 ANFD *anfd = anfds + fd; 1464 ANFD *anfd = anfds + fd;
885 ev_io *w; 1465 ev_io *w;
886 1466
887 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)
… …
899fd_event (EV_P_ int fd, int revents) 1479fd_event (EV_P_ int fd, int revents)
900{ 1480{
901 ANFD *anfd = anfds + fd; 1481 ANFD *anfd = anfds + fd;
902 1482
903 if (expect_true (!anfd->reify)) 1483 if (expect_true (!anfd->reify))
904 fd_event_nc (EV_A_ fd, revents); 1484 fd_event_nocheck (EV_A_ fd, revents);
905} 1485}
906 1486
907void 1487void
908ev_feed_fd_event (EV_P_ int fd, int revents) 1488ev_feed_fd_event (EV_P_ int fd, int revents)
909{ 1489{
910 if (fd >= 0 && fd < anfdmax) 1490 if (fd >= 0 && fd < anfdmax)
911 fd_event_nc (EV_A_ fd, revents); 1491 fd_event_nocheck (EV_A_ fd, revents);
912} 1492}
913 1493
914/* make sure the external fd watch events are in-sync */ 1494/* make sure the external fd watch events are in-sync */
915/* with the kernel/libev internal state */ 1495/* with the kernel/libev internal state */
916inline_size void 1496inline_size void
917fd_reify (EV_P) 1497fd_reify (EV_P)
918{ 1498{
919 int i; 1499 int i;
920 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
921 for (i = 0; i < fdchangecnt; ++i) 1526 for (i = 0; i < fdchangecnt; ++i)
922 { 1527 {
923 int fd = fdchanges [i]; 1528 int fd = fdchanges [i];
924 ANFD *anfd = anfds + fd; 1529 ANFD *anfd = anfds + fd;
925 ev_io *w; 1530 ev_io *w;
926 1531
927 unsigned char events = 0; 1532 unsigned char o_events = anfd->events;
1533 unsigned char o_reify = anfd->reify;
928 1534
929 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1535 anfd->reify = 0;
930 events |= (unsigned char)w->events;
931 1536
932#if EV_SELECT_IS_WINSOCKET 1537 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
933 if (events)
934 { 1538 {
935 unsigned long arg; 1539 anfd->events = 0;
936 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1540
937 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 |= */
938 } 1546 }
939#endif
940 1547
941 { 1548 if (o_reify & EV__IOFDSET)
942 unsigned char o_events = anfd->events;
943 unsigned char o_reify = anfd->reify;
944
945 anfd->reify = 0;
946 anfd->events = events;
947
948 if (o_events != events || o_reify & EV__IOFDSET)
949 backend_modify (EV_A_ fd, o_events, events); 1549 backend_modify (EV_A_ fd, o_events, anfd->events);
950 }
951 } 1550 }
952 1551
953 fdchangecnt = 0; 1552 fdchangecnt = 0;
954} 1553}
955 1554
… …
967 fdchanges [fdchangecnt - 1] = fd; 1566 fdchanges [fdchangecnt - 1] = fd;
968 } 1567 }
969} 1568}
970 1569
971/* 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 */
972inline_speed void 1571inline_speed void ecb_cold
973fd_kill (EV_P_ int fd) 1572fd_kill (EV_P_ int fd)
974{ 1573{
975 ev_io *w; 1574 ev_io *w;
976 1575
977 while ((w = (ev_io *)anfds [fd].head)) 1576 while ((w = (ev_io *)anfds [fd].head))
… …
979 ev_io_stop (EV_A_ w); 1578 ev_io_stop (EV_A_ w);
980 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);
981 } 1580 }
982} 1581}
983 1582
984/* check whether the given fd is atcually valid, for error recovery */ 1583/* check whether the given fd is actually valid, for error recovery */
985inline_size int 1584inline_size int ecb_cold
986fd_valid (int fd) 1585fd_valid (int fd)
987{ 1586{
988#ifdef _WIN32 1587#ifdef _WIN32
989 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1588 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
990#else 1589#else
991 return fcntl (fd, F_GETFD) != -1; 1590 return fcntl (fd, F_GETFD) != -1;
992#endif 1591#endif
993} 1592}
994 1593
995/* called on EBADF to verify fds */ 1594/* called on EBADF to verify fds */
996static void noinline 1595static void noinline ecb_cold
997fd_ebadf (EV_P) 1596fd_ebadf (EV_P)
998{ 1597{
999 int fd; 1598 int fd;
1000 1599
1001 for (fd = 0; fd < anfdmax; ++fd) 1600 for (fd = 0; fd < anfdmax; ++fd)
… …
1003 if (!fd_valid (fd) && errno == EBADF) 1602 if (!fd_valid (fd) && errno == EBADF)
1004 fd_kill (EV_A_ fd); 1603 fd_kill (EV_A_ fd);
1005} 1604}
1006 1605
1007/* 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 */
1008static void noinline 1607static void noinline ecb_cold
1009fd_enomem (EV_P) 1608fd_enomem (EV_P)
1010{ 1609{
1011 int fd; 1610 int fd;
1012 1611
1013 for (fd = anfdmax; fd--; ) 1612 for (fd = anfdmax; fd--; )
… …
1031 anfds [fd].emask = 0; 1630 anfds [fd].emask = 0;
1032 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1631 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1033 } 1632 }
1034} 1633}
1035 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
1036/*****************************************************************************/ 1649/*****************************************************************************/
1037 1650
1038/* 1651/*
1039 * 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
1040 * 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
1041 * the branching factor of the d-tree. 1654 * the branching factor of the d-tree.
1042 */ 1655 */
1043 1656
1044/* 1657/*
… …
1192 1805
1193static ANSIG signals [EV_NSIG - 1]; 1806static ANSIG signals [EV_NSIG - 1];
1194 1807
1195/*****************************************************************************/ 1808/*****************************************************************************/
1196 1809
1197/* used to prepare libev internal fd's */ 1810#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1198/* this is not fork-safe */
1199inline_speed void
1200fd_intern (int fd)
1201{
1202#ifdef _WIN32
1203 unsigned long arg = 1;
1204 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1205#else
1206 fcntl (fd, F_SETFD, FD_CLOEXEC);
1207 fcntl (fd, F_SETFL, O_NONBLOCK);
1208#endif
1209}
1210 1811
1211static void noinline 1812static void noinline ecb_cold
1212evpipe_init (EV_P) 1813evpipe_init (EV_P)
1213{ 1814{
1214 if (!ev_is_active (&pipe_w)) 1815 if (!ev_is_active (&pipe_w))
1215 { 1816 {
1216#if EV_USE_EVENTFD 1817# if EV_USE_EVENTFD
1217 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1818 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1218 if (evfd < 0 && errno == EINVAL) 1819 if (evfd < 0 && errno == EINVAL)
1219 evfd = eventfd (0, 0); 1820 evfd = eventfd (0, 0);
1220 1821
1221 if (evfd >= 0) 1822 if (evfd >= 0)
… …
1223 evpipe [0] = -1; 1824 evpipe [0] = -1;
1224 fd_intern (evfd); /* doing it twice doesn't hurt */ 1825 fd_intern (evfd); /* doing it twice doesn't hurt */
1225 ev_io_set (&pipe_w, evfd, EV_READ); 1826 ev_io_set (&pipe_w, evfd, EV_READ);
1226 } 1827 }
1227 else 1828 else
1228#endif 1829# endif
1229 { 1830 {
1230 while (pipe (evpipe)) 1831 while (pipe (evpipe))
1231 ev_syserr ("(libev) error creating signal/async pipe"); 1832 ev_syserr ("(libev) error creating signal/async pipe");
1232 1833
1233 fd_intern (evpipe [0]); 1834 fd_intern (evpipe [0]);
… …
1238 ev_io_start (EV_A_ &pipe_w); 1839 ev_io_start (EV_A_ &pipe_w);
1239 ev_unref (EV_A); /* watcher should not keep loop alive */ 1840 ev_unref (EV_A); /* watcher should not keep loop alive */
1240 } 1841 }
1241} 1842}
1242 1843
1243inline_size void 1844inline_speed void
1244evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1845evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1245{ 1846{
1246 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)
1247 { 1859 {
1860 int old_errno;
1861
1862 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1863
1248 int old_errno = errno; /* save errno because write might clobber it */ 1864 old_errno = errno; /* save errno because write will clobber it */
1249
1250 *flag = 1;
1251 1865
1252#if EV_USE_EVENTFD 1866#if EV_USE_EVENTFD
1253 if (evfd >= 0) 1867 if (evfd >= 0)
1254 { 1868 {
1255 uint64_t counter = 1; 1869 uint64_t counter = 1;
1256 write (evfd, &counter, sizeof (uint64_t)); 1870 write (evfd, &counter, sizeof (uint64_t));
1257 } 1871 }
1258 else 1872 else
1259#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 */
1260 write (evpipe [1], &old_errno, 1); 1882 write (evpipe [1], &(evpipe [1]), 1);
1883 }
1261 1884
1262 errno = old_errno; 1885 errno = old_errno;
1263 } 1886 }
1264} 1887}
1265 1888
… …
1268static void 1891static void
1269pipecb (EV_P_ ev_io *iow, int revents) 1892pipecb (EV_P_ ev_io *iow, int revents)
1270{ 1893{
1271 int i; 1894 int i;
1272 1895
1896 if (revents & EV_READ)
1897 {
1273#if EV_USE_EVENTFD 1898#if EV_USE_EVENTFD
1274 if (evfd >= 0) 1899 if (evfd >= 0)
1275 { 1900 {
1276 uint64_t counter; 1901 uint64_t counter;
1277 read (evfd, &counter, sizeof (uint64_t)); 1902 read (evfd, &counter, sizeof (uint64_t));
1278 } 1903 }
1279 else 1904 else
1280#endif 1905#endif
1281 { 1906 {
1282 char dummy; 1907 char dummy;
1908 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1283 read (evpipe [0], &dummy, 1); 1909 read (evpipe [0], &dummy, 1);
1910 }
1284 } 1911 }
1285 1912
1913 pipe_write_skipped = 0;
1914
1915#if EV_SIGNAL_ENABLE
1286 if (sig_pending) 1916 if (sig_pending)
1287 { 1917 {
1288 sig_pending = 0; 1918 sig_pending = 0;
1289 1919
1290 for (i = EV_NSIG - 1; i--; ) 1920 for (i = EV_NSIG - 1; i--; )
1291 if (expect_false (signals [i].pending)) 1921 if (expect_false (signals [i].pending))
1292 ev_feed_signal_event (EV_A_ i + 1); 1922 ev_feed_signal_event (EV_A_ i + 1);
1293 } 1923 }
1924#endif
1294 1925
1295#if EV_ASYNC_ENABLE 1926#if EV_ASYNC_ENABLE
1296 if (async_pending) 1927 if (async_pending)
1297 { 1928 {
1298 async_pending = 0; 1929 async_pending = 0;
… …
1307#endif 1938#endif
1308} 1939}
1309 1940
1310/*****************************************************************************/ 1941/*****************************************************************************/
1311 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
1312static void 1960static void
1313ev_sighandler (int signum) 1961ev_sighandler (int signum)
1314{ 1962{
1315#if EV_MULTIPLICITY
1316 EV_P = signals [signum - 1].loop;
1317#endif
1318
1319#ifdef _WIN32 1963#ifdef _WIN32
1320 signal (signum, ev_sighandler); 1964 signal (signum, ev_sighandler);
1321#endif 1965#endif
1322 1966
1323 signals [signum - 1].pending = 1; 1967 ev_feed_signal (signum);
1324 evpipe_write (EV_A_ &sig_pending);
1325} 1968}
1326 1969
1327void noinline 1970void noinline
1328ev_feed_signal_event (EV_P_ int signum) 1971ev_feed_signal_event (EV_P_ int signum)
1329{ 1972{
… …
1366 break; 2009 break;
1367 } 2010 }
1368} 2011}
1369#endif 2012#endif
1370 2013
2014#endif
2015
1371/*****************************************************************************/ 2016/*****************************************************************************/
1372 2017
2018#if EV_CHILD_ENABLE
1373static WL childs [EV_PID_HASHSIZE]; 2019static WL childs [EV_PID_HASHSIZE];
1374
1375#ifndef _WIN32
1376 2020
1377static ev_signal childev; 2021static ev_signal childev;
1378 2022
1379#ifndef WIFCONTINUED 2023#ifndef WIFCONTINUED
1380# define WIFCONTINUED(status) 0 2024# define WIFCONTINUED(status) 0
… …
1385child_reap (EV_P_ int chain, int pid, int status) 2029child_reap (EV_P_ int chain, int pid, int status)
1386{ 2030{
1387 ev_child *w; 2031 ev_child *w;
1388 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2032 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1389 2033
1390 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)
1391 { 2035 {
1392 if ((w->pid == pid || !w->pid) 2036 if ((w->pid == pid || !w->pid)
1393 && (!traced || (w->flags & 1))) 2037 && (!traced || (w->flags & 1)))
1394 { 2038 {
1395 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 */
… …
1420 /* 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 */
1421 /* 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 */
1422 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2066 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1423 2067
1424 child_reap (EV_A_ pid, pid, status); 2068 child_reap (EV_A_ pid, pid, status);
1425 if (EV_PID_HASHSIZE > 1) 2069 if ((EV_PID_HASHSIZE) > 1)
1426 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 */
1427} 2071}
1428 2072
1429#endif 2073#endif
1430 2074
1431/*****************************************************************************/ 2075/*****************************************************************************/
1432 2076
2077#if EV_USE_IOCP
2078# include "ev_iocp.c"
2079#endif
1433#if EV_USE_PORT 2080#if EV_USE_PORT
1434# include "ev_port.c" 2081# include "ev_port.c"
1435#endif 2082#endif
1436#if EV_USE_KQUEUE 2083#if EV_USE_KQUEUE
1437# include "ev_kqueue.c" 2084# include "ev_kqueue.c"
… …
1444#endif 2091#endif
1445#if EV_USE_SELECT 2092#if EV_USE_SELECT
1446# include "ev_select.c" 2093# include "ev_select.c"
1447#endif 2094#endif
1448 2095
1449int 2096int ecb_cold
1450ev_version_major (void) 2097ev_version_major (void)
1451{ 2098{
1452 return EV_VERSION_MAJOR; 2099 return EV_VERSION_MAJOR;
1453} 2100}
1454 2101
1455int 2102int ecb_cold
1456ev_version_minor (void) 2103ev_version_minor (void)
1457{ 2104{
1458 return EV_VERSION_MINOR; 2105 return EV_VERSION_MINOR;
1459} 2106}
1460 2107
1461/* 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 */
1462int inline_size 2109int inline_size ecb_cold
1463enable_secure (void) 2110enable_secure (void)
1464{ 2111{
1465#ifdef _WIN32 2112#ifdef _WIN32
1466 return 0; 2113 return 0;
1467#else 2114#else
1468 return getuid () != geteuid () 2115 return getuid () != geteuid ()
1469 || getgid () != getegid (); 2116 || getgid () != getegid ();
1470#endif 2117#endif
1471} 2118}
1472 2119
1473unsigned int 2120unsigned int ecb_cold
1474ev_supported_backends (void) 2121ev_supported_backends (void)
1475{ 2122{
1476 unsigned int flags = 0; 2123 unsigned int flags = 0;
1477 2124
1478 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2125 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1482 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2129 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1483 2130
1484 return flags; 2131 return flags;
1485} 2132}
1486 2133
1487unsigned int 2134unsigned int ecb_cold
1488ev_recommended_backends (void) 2135ev_recommended_backends (void)
1489{ 2136{
1490 unsigned int flags = ev_supported_backends (); 2137 unsigned int flags = ev_supported_backends ();
1491 2138
1492#ifndef __NetBSD__ 2139#ifndef __NetBSD__
… …
1497#ifdef __APPLE__ 2144#ifdef __APPLE__
1498 /* only select works correctly on that "unix-certified" platform */ 2145 /* only select works correctly on that "unix-certified" platform */
1499 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2146 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1500 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 */
1501#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
1502 2152
1503 return flags; 2153 return flags;
1504} 2154}
1505 2155
1506unsigned int 2156unsigned int ecb_cold
1507ev_embeddable_backends (void) 2157ev_embeddable_backends (void)
1508{ 2158{
1509 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2159 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1510 2160
1511 /* 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 */
1512 /* please fix it and tell me how to detect the fix */ 2162 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1513 flags &= ~EVBACKEND_EPOLL; 2163 flags &= ~EVBACKEND_EPOLL;
1514 2164
1515 return flags; 2165 return flags;
1516} 2166}
1517 2167
1518unsigned int 2168unsigned int
1519ev_backend (EV_P) 2169ev_backend (EV_P)
1520{ 2170{
1521 return backend; 2171 return backend;
1522} 2172}
1523 2173
1524#if EV_MINIMAL < 2 2174#if EV_FEATURE_API
1525unsigned int 2175unsigned int
1526ev_loop_count (EV_P) 2176ev_iteration (EV_P)
1527{ 2177{
1528 return loop_count; 2178 return loop_count;
1529} 2179}
1530 2180
1531unsigned int 2181unsigned int
1532ev_loop_depth (EV_P) 2182ev_depth (EV_P)
1533{ 2183{
1534 return loop_depth; 2184 return loop_depth;
1535} 2185}
1536 2186
1537void 2187void
… …
1556ev_userdata (EV_P) 2206ev_userdata (EV_P)
1557{ 2207{
1558 return userdata; 2208 return userdata;
1559} 2209}
1560 2210
2211void
1561void 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))
1562{ 2213{
1563 invoke_cb = invoke_pending_cb; 2214 invoke_cb = invoke_pending_cb;
1564} 2215}
1565 2216
2217void
1566void 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))
1567{ 2219{
1568 release_cb = release; 2220 release_cb = release;
1569 acquire_cb = acquire; 2221 acquire_cb = acquire;
1570} 2222}
1571#endif 2223#endif
1572 2224
1573/* initialise a loop structure, must be zero-initialised */ 2225/* initialise a loop structure, must be zero-initialised */
1574static void noinline 2226static void noinline ecb_cold
1575loop_init (EV_P_ unsigned int flags) 2227loop_init (EV_P_ unsigned int flags)
1576{ 2228{
1577 if (!backend) 2229 if (!backend)
1578 { 2230 {
2231 origflags = flags;
2232
1579#if EV_USE_REALTIME 2233#if EV_USE_REALTIME
1580 if (!have_realtime) 2234 if (!have_realtime)
1581 { 2235 {
1582 struct timespec ts; 2236 struct timespec ts;
1583 2237
… …
1605 if (!(flags & EVFLAG_NOENV) 2259 if (!(flags & EVFLAG_NOENV)
1606 && !enable_secure () 2260 && !enable_secure ()
1607 && getenv ("LIBEV_FLAGS")) 2261 && getenv ("LIBEV_FLAGS"))
1608 flags = atoi (getenv ("LIBEV_FLAGS")); 2262 flags = atoi (getenv ("LIBEV_FLAGS"));
1609 2263
1610 ev_rt_now = ev_time (); 2264 ev_rt_now = ev_time ();
1611 mn_now = get_clock (); 2265 mn_now = get_clock ();
1612 now_floor = mn_now; 2266 now_floor = mn_now;
1613 rtmn_diff = ev_rt_now - mn_now; 2267 rtmn_diff = ev_rt_now - mn_now;
1614#if EV_MINIMAL < 2 2268#if EV_FEATURE_API
1615 invoke_cb = ev_invoke_pending; 2269 invoke_cb = ev_invoke_pending;
1616#endif 2270#endif
1617 2271
1618 io_blocktime = 0.; 2272 io_blocktime = 0.;
1619 timeout_blocktime = 0.; 2273 timeout_blocktime = 0.;
1620 backend = 0; 2274 backend = 0;
1621 backend_fd = -1; 2275 backend_fd = -1;
1622 sig_pending = 0; 2276 sig_pending = 0;
1623#if EV_ASYNC_ENABLE 2277#if EV_ASYNC_ENABLE
1624 async_pending = 0; 2278 async_pending = 0;
1625#endif 2279#endif
2280 pipe_write_skipped = 0;
2281 pipe_write_wanted = 0;
1626#if EV_USE_INOTIFY 2282#if EV_USE_INOTIFY
1627 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2283 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1628#endif 2284#endif
1629#if EV_USE_SIGNALFD 2285#if EV_USE_SIGNALFD
1630 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2286 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1631#endif 2287#endif
1632 2288
1633 if (!(flags & 0x0000ffffU)) 2289 if (!(flags & EVBACKEND_MASK))
1634 flags |= ev_recommended_backends (); 2290 flags |= ev_recommended_backends ();
1635 2291
2292#if EV_USE_IOCP
2293 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2294#endif
1636#if EV_USE_PORT 2295#if EV_USE_PORT
1637 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2296 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1638#endif 2297#endif
1639#if EV_USE_KQUEUE 2298#if EV_USE_KQUEUE
1640 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2299 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1649 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2308 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1650#endif 2309#endif
1651 2310
1652 ev_prepare_init (&pending_w, pendingcb); 2311 ev_prepare_init (&pending_w, pendingcb);
1653 2312
2313#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1654 ev_init (&pipe_w, pipecb); 2314 ev_init (&pipe_w, pipecb);
1655 ev_set_priority (&pipe_w, EV_MAXPRI); 2315 ev_set_priority (&pipe_w, EV_MAXPRI);
2316#endif
1656 } 2317 }
1657} 2318}
1658 2319
1659/* free up a loop structure */ 2320/* free up a loop structure */
1660static void noinline 2321void ecb_cold
1661loop_destroy (EV_P) 2322ev_loop_destroy (EV_P)
1662{ 2323{
1663 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
1664 2348
1665 if (ev_is_active (&pipe_w)) 2349 if (ev_is_active (&pipe_w))
1666 { 2350 {
1667 /*ev_ref (EV_A);*/ 2351 /*ev_ref (EV_A);*/
1668 /*ev_io_stop (EV_A_ &pipe_w);*/ 2352 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1690#endif 2374#endif
1691 2375
1692 if (backend_fd >= 0) 2376 if (backend_fd >= 0)
1693 close (backend_fd); 2377 close (backend_fd);
1694 2378
2379#if EV_USE_IOCP
2380 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2381#endif
1695#if EV_USE_PORT 2382#if EV_USE_PORT
1696 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2383 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1697#endif 2384#endif
1698#if EV_USE_KQUEUE 2385#if EV_USE_KQUEUE
1699 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2386 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1726 array_free (periodic, EMPTY); 2413 array_free (periodic, EMPTY);
1727#endif 2414#endif
1728#if EV_FORK_ENABLE 2415#if EV_FORK_ENABLE
1729 array_free (fork, EMPTY); 2416 array_free (fork, EMPTY);
1730#endif 2417#endif
2418#if EV_CLEANUP_ENABLE
2419 array_free (cleanup, EMPTY);
2420#endif
1731 array_free (prepare, EMPTY); 2421 array_free (prepare, EMPTY);
1732 array_free (check, EMPTY); 2422 array_free (check, EMPTY);
1733#if EV_ASYNC_ENABLE 2423#if EV_ASYNC_ENABLE
1734 array_free (async, EMPTY); 2424 array_free (async, EMPTY);
1735#endif 2425#endif
1736 2426
1737 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
1738} 2437}
1739 2438
1740#if EV_USE_INOTIFY 2439#if EV_USE_INOTIFY
1741inline_size void infy_fork (EV_P); 2440inline_size void infy_fork (EV_P);
1742#endif 2441#endif
… …
1757 infy_fork (EV_A); 2456 infy_fork (EV_A);
1758#endif 2457#endif
1759 2458
1760 if (ev_is_active (&pipe_w)) 2459 if (ev_is_active (&pipe_w))
1761 { 2460 {
1762 /* this "locks" the handlers against writing to the pipe */ 2461 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1763 /* while we modify the fd vars */
1764 sig_pending = 1;
1765#if EV_ASYNC_ENABLE
1766 async_pending = 1;
1767#endif
1768 2462
1769 ev_ref (EV_A); 2463 ev_ref (EV_A);
1770 ev_io_stop (EV_A_ &pipe_w); 2464 ev_io_stop (EV_A_ &pipe_w);
1771 2465
1772#if EV_USE_EVENTFD 2466#if EV_USE_EVENTFD
… …
1778 { 2472 {
1779 EV_WIN32_CLOSE_FD (evpipe [0]); 2473 EV_WIN32_CLOSE_FD (evpipe [0]);
1780 EV_WIN32_CLOSE_FD (evpipe [1]); 2474 EV_WIN32_CLOSE_FD (evpipe [1]);
1781 } 2475 }
1782 2476
2477#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1783 evpipe_init (EV_A); 2478 evpipe_init (EV_A);
1784 /* now iterate over everything, in case we missed something */ 2479 /* now iterate over everything, in case we missed something */
1785 pipecb (EV_A_ &pipe_w, EV_READ); 2480 pipecb (EV_A_ &pipe_w, EV_READ);
2481#endif
1786 } 2482 }
1787 2483
1788 postfork = 0; 2484 postfork = 0;
1789} 2485}
1790 2486
1791#if EV_MULTIPLICITY 2487#if EV_MULTIPLICITY
1792 2488
1793struct ev_loop * 2489struct ev_loop * ecb_cold
1794ev_loop_new (unsigned int flags) 2490ev_loop_new (unsigned int flags)
1795{ 2491{
1796 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2492 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1797 2493
1798 memset (EV_A, 0, sizeof (struct ev_loop)); 2494 memset (EV_A, 0, sizeof (struct ev_loop));
1799 loop_init (EV_A_ flags); 2495 loop_init (EV_A_ flags);
1800 2496
1801 if (ev_backend (EV_A)) 2497 if (ev_backend (EV_A))
1802 return EV_A; 2498 return EV_A;
1803 2499
2500 ev_free (EV_A);
1804 return 0; 2501 return 0;
1805} 2502}
1806 2503
1807void
1808ev_loop_destroy (EV_P)
1809{
1810 loop_destroy (EV_A);
1811 ev_free (loop);
1812}
1813
1814void
1815ev_loop_fork (EV_P)
1816{
1817 postfork = 1; /* must be in line with ev_default_fork */
1818}
1819#endif /* multiplicity */ 2504#endif /* multiplicity */
1820 2505
1821#if EV_VERIFY 2506#if EV_VERIFY
1822static void noinline 2507static void noinline ecb_cold
1823verify_watcher (EV_P_ W w) 2508verify_watcher (EV_P_ W w)
1824{ 2509{
1825 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));
1826 2511
1827 if (w->pending) 2512 if (w->pending)
1828 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));
1829} 2514}
1830 2515
1831static void noinline 2516static void noinline ecb_cold
1832verify_heap (EV_P_ ANHE *heap, int N) 2517verify_heap (EV_P_ ANHE *heap, int N)
1833{ 2518{
1834 int i; 2519 int i;
1835 2520
1836 for (i = HEAP0; i < N + HEAP0; ++i) 2521 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1841 2526
1842 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2527 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1843 } 2528 }
1844} 2529}
1845 2530
1846static void noinline 2531static void noinline ecb_cold
1847array_verify (EV_P_ W *ws, int cnt) 2532array_verify (EV_P_ W *ws, int cnt)
1848{ 2533{
1849 while (cnt--) 2534 while (cnt--)
1850 { 2535 {
1851 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2536 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1852 verify_watcher (EV_A_ ws [cnt]); 2537 verify_watcher (EV_A_ ws [cnt]);
1853 } 2538 }
1854} 2539}
1855#endif 2540#endif
1856 2541
1857#if EV_MINIMAL < 2 2542#if EV_FEATURE_API
1858void 2543void ecb_cold
1859ev_loop_verify (EV_P) 2544ev_verify (EV_P)
1860{ 2545{
1861#if EV_VERIFY 2546#if EV_VERIFY
1862 int i; 2547 int i;
1863 WL w; 2548 WL w;
1864 2549
… …
1898#if EV_FORK_ENABLE 2583#if EV_FORK_ENABLE
1899 assert (forkmax >= forkcnt); 2584 assert (forkmax >= forkcnt);
1900 array_verify (EV_A_ (W *)forks, forkcnt); 2585 array_verify (EV_A_ (W *)forks, forkcnt);
1901#endif 2586#endif
1902 2587
2588#if EV_CLEANUP_ENABLE
2589 assert (cleanupmax >= cleanupcnt);
2590 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2591#endif
2592
1903#if EV_ASYNC_ENABLE 2593#if EV_ASYNC_ENABLE
1904 assert (asyncmax >= asynccnt); 2594 assert (asyncmax >= asynccnt);
1905 array_verify (EV_A_ (W *)asyncs, asynccnt); 2595 array_verify (EV_A_ (W *)asyncs, asynccnt);
1906#endif 2596#endif
1907 2597
2598#if EV_PREPARE_ENABLE
1908 assert (preparemax >= preparecnt); 2599 assert (preparemax >= preparecnt);
1909 array_verify (EV_A_ (W *)prepares, preparecnt); 2600 array_verify (EV_A_ (W *)prepares, preparecnt);
2601#endif
1910 2602
2603#if EV_CHECK_ENABLE
1911 assert (checkmax >= checkcnt); 2604 assert (checkmax >= checkcnt);
1912 array_verify (EV_A_ (W *)checks, checkcnt); 2605 array_verify (EV_A_ (W *)checks, checkcnt);
2606#endif
1913 2607
1914# if 0 2608# if 0
2609#if EV_CHILD_ENABLE
1915 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)
1916 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2611 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2612#endif
1917# endif 2613# endif
1918#endif 2614#endif
1919} 2615}
1920#endif 2616#endif
1921 2617
1922#if EV_MULTIPLICITY 2618#if EV_MULTIPLICITY
1923struct ev_loop * 2619struct ev_loop * ecb_cold
1924ev_default_loop_init (unsigned int flags)
1925#else 2620#else
1926int 2621int
2622#endif
1927ev_default_loop (unsigned int flags) 2623ev_default_loop (unsigned int flags)
1928#endif
1929{ 2624{
1930 if (!ev_default_loop_ptr) 2625 if (!ev_default_loop_ptr)
1931 { 2626 {
1932#if EV_MULTIPLICITY 2627#if EV_MULTIPLICITY
1933 EV_P = ev_default_loop_ptr = &default_loop_struct; 2628 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1937 2632
1938 loop_init (EV_A_ flags); 2633 loop_init (EV_A_ flags);
1939 2634
1940 if (ev_backend (EV_A)) 2635 if (ev_backend (EV_A))
1941 { 2636 {
1942#ifndef _WIN32 2637#if EV_CHILD_ENABLE
1943 ev_signal_init (&childev, childcb, SIGCHLD); 2638 ev_signal_init (&childev, childcb, SIGCHLD);
1944 ev_set_priority (&childev, EV_MAXPRI); 2639 ev_set_priority (&childev, EV_MAXPRI);
1945 ev_signal_start (EV_A_ &childev); 2640 ev_signal_start (EV_A_ &childev);
1946 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2641 ev_unref (EV_A); /* child watcher should not keep loop alive */
1947#endif 2642#endif
… …
1952 2647
1953 return ev_default_loop_ptr; 2648 return ev_default_loop_ptr;
1954} 2649}
1955 2650
1956void 2651void
1957ev_default_destroy (void) 2652ev_loop_fork (EV_P)
1958{ 2653{
1959#if EV_MULTIPLICITY
1960 EV_P = ev_default_loop_ptr;
1961#endif
1962
1963 ev_default_loop_ptr = 0;
1964
1965#ifndef _WIN32
1966 ev_ref (EV_A); /* child watcher */
1967 ev_signal_stop (EV_A_ &childev);
1968#endif
1969
1970 loop_destroy (EV_A);
1971}
1972
1973void
1974ev_default_fork (void)
1975{
1976#if EV_MULTIPLICITY
1977 EV_P = ev_default_loop_ptr;
1978#endif
1979
1980 postfork = 1; /* must be in line with ev_loop_fork */ 2654 postfork = 1; /* must be in line with ev_default_fork */
1981} 2655}
1982 2656
1983/*****************************************************************************/ 2657/*****************************************************************************/
1984 2658
1985void 2659void
… …
2007 2681
2008 for (pri = NUMPRI; pri--; ) 2682 for (pri = NUMPRI; pri--; )
2009 while (pendingcnt [pri]) 2683 while (pendingcnt [pri])
2010 { 2684 {
2011 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2685 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2012
2013 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2014 /* ^ this is no longer true, as pending_w could be here */
2015 2686
2016 p->w->pending = 0; 2687 p->w->pending = 0;
2017 EV_CB_INVOKE (p->w, p->events); 2688 EV_CB_INVOKE (p->w, p->events);
2018 EV_FREQUENT_CHECK; 2689 EV_FREQUENT_CHECK;
2019 } 2690 }
… …
2076 EV_FREQUENT_CHECK; 2747 EV_FREQUENT_CHECK;
2077 feed_reverse (EV_A_ (W)w); 2748 feed_reverse (EV_A_ (W)w);
2078 } 2749 }
2079 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2750 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2080 2751
2081 feed_reverse_done (EV_A_ EV_TIMEOUT); 2752 feed_reverse_done (EV_A_ EV_TIMER);
2082 } 2753 }
2083} 2754}
2084 2755
2085#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
2086/* make periodics pending */ 2782/* make periodics pending */
2087inline_size void 2783inline_size void
2088periodics_reify (EV_P) 2784periodics_reify (EV_P)
2089{ 2785{
2090 EV_FREQUENT_CHECK; 2786 EV_FREQUENT_CHECK;
… …
2109 ANHE_at_cache (periodics [HEAP0]); 2805 ANHE_at_cache (periodics [HEAP0]);
2110 downheap (periodics, periodiccnt, HEAP0); 2806 downheap (periodics, periodiccnt, HEAP0);
2111 } 2807 }
2112 else if (w->interval) 2808 else if (w->interval)
2113 { 2809 {
2114 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2810 periodic_recalc (EV_A_ w);
2115 /* if next trigger time is not sufficiently in the future, put it there */
2116 /* this might happen because of floating point inexactness */
2117 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2118 {
2119 ev_at (w) += w->interval;
2120
2121 /* if interval is unreasonably low we might still have a time in the past */
2122 /* so correct this. this will make the periodic very inexact, but the user */
2123 /* has effectively asked to get triggered more often than possible */
2124 if (ev_at (w) < ev_rt_now)
2125 ev_at (w) = ev_rt_now;
2126 }
2127
2128 ANHE_at_cache (periodics [HEAP0]); 2811 ANHE_at_cache (periodics [HEAP0]);
2129 downheap (periodics, periodiccnt, HEAP0); 2812 downheap (periodics, periodiccnt, HEAP0);
2130 } 2813 }
2131 else 2814 else
2132 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2815 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2139 feed_reverse_done (EV_A_ EV_PERIODIC); 2822 feed_reverse_done (EV_A_ EV_PERIODIC);
2140 } 2823 }
2141} 2824}
2142 2825
2143/* simply recalculate all periodics */ 2826/* simply recalculate all periodics */
2144/* 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? */
2145static void noinline 2828static void noinline ecb_cold
2146periodics_reschedule (EV_P) 2829periodics_reschedule (EV_P)
2147{ 2830{
2148 int i; 2831 int i;
2149 2832
2150 /* adjust periodics after time jump */ 2833 /* adjust periodics after time jump */
… …
2153 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2836 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2154 2837
2155 if (w->reschedule_cb) 2838 if (w->reschedule_cb)
2156 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2839 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2157 else if (w->interval) 2840 else if (w->interval)
2158 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2841 periodic_recalc (EV_A_ w);
2159 2842
2160 ANHE_at_cache (periodics [i]); 2843 ANHE_at_cache (periodics [i]);
2161 } 2844 }
2162 2845
2163 reheap (periodics, periodiccnt); 2846 reheap (periodics, periodiccnt);
2164} 2847}
2165#endif 2848#endif
2166 2849
2167/* adjust all timers by a given offset */ 2850/* adjust all timers by a given offset */
2168static void noinline 2851static void noinline ecb_cold
2169timers_reschedule (EV_P_ ev_tstamp adjust) 2852timers_reschedule (EV_P_ ev_tstamp adjust)
2170{ 2853{
2171 int i; 2854 int i;
2172 2855
2173 for (i = 0; i < timercnt; ++i) 2856 for (i = 0; i < timercnt; ++i)
… …
2210 * 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
2211 * in the unlikely event of having been preempted here. 2894 * in the unlikely event of having been preempted here.
2212 */ 2895 */
2213 for (i = 4; --i; ) 2896 for (i = 4; --i; )
2214 { 2897 {
2898 ev_tstamp diff;
2215 rtmn_diff = ev_rt_now - mn_now; 2899 rtmn_diff = ev_rt_now - mn_now;
2216 2900
2901 diff = odiff - rtmn_diff;
2902
2217 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2903 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2218 return; /* all is well */ 2904 return; /* all is well */
2219 2905
2220 ev_rt_now = ev_time (); 2906 ev_rt_now = ev_time ();
2221 mn_now = get_clock (); 2907 mn_now = get_clock ();
2222 now_floor = mn_now; 2908 now_floor = mn_now;
… …
2245 mn_now = ev_rt_now; 2931 mn_now = ev_rt_now;
2246 } 2932 }
2247} 2933}
2248 2934
2249void 2935void
2250ev_loop (EV_P_ int flags) 2936ev_run (EV_P_ int flags)
2251{ 2937{
2252#if EV_MINIMAL < 2 2938#if EV_FEATURE_API
2253 ++loop_depth; 2939 ++loop_depth;
2254#endif 2940#endif
2255 2941
2256 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));
2257 2943
2258 loop_done = EVUNLOOP_CANCEL; 2944 loop_done = EVBREAK_CANCEL;
2259 2945
2260 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 */
2261 2947
2262 do 2948 do
2263 { 2949 {
2264#if EV_VERIFY >= 2 2950#if EV_VERIFY >= 2
2265 ev_loop_verify (EV_A); 2951 ev_verify (EV_A);
2266#endif 2952#endif
2267 2953
2268#ifndef _WIN32 2954#ifndef _WIN32
2269 if (expect_false (curpid)) /* penalise the forking check even more */ 2955 if (expect_false (curpid)) /* penalise the forking check even more */
2270 if (expect_false (getpid () != curpid)) 2956 if (expect_false (getpid () != curpid))
… …
2282 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2968 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2283 EV_INVOKE_PENDING; 2969 EV_INVOKE_PENDING;
2284 } 2970 }
2285#endif 2971#endif
2286 2972
2973#if EV_PREPARE_ENABLE
2287 /* queue prepare watchers (and execute them) */ 2974 /* queue prepare watchers (and execute them) */
2288 if (expect_false (preparecnt)) 2975 if (expect_false (preparecnt))
2289 { 2976 {
2290 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2977 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2291 EV_INVOKE_PENDING; 2978 EV_INVOKE_PENDING;
2292 } 2979 }
2980#endif
2293 2981
2294 if (expect_false (loop_done)) 2982 if (expect_false (loop_done))
2295 break; 2983 break;
2296 2984
2297 /* we might have forked, so reify kernel state if necessary */ 2985 /* we might have forked, so reify kernel state if necessary */
… …
2304 /* calculate blocking time */ 2992 /* calculate blocking time */
2305 { 2993 {
2306 ev_tstamp waittime = 0.; 2994 ev_tstamp waittime = 0.;
2307 ev_tstamp sleeptime = 0.; 2995 ev_tstamp sleeptime = 0.;
2308 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
2309 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3008 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2310 { 3009 {
2311 /* remember old timestamp for io_blocktime calculation */
2312 ev_tstamp prev_mn_now = mn_now;
2313
2314 /* update time to cancel out callback processing overhead */
2315 time_update (EV_A_ 1e100);
2316
2317 waittime = MAX_BLOCKTIME; 3010 waittime = MAX_BLOCKTIME;
2318 3011
2319 if (timercnt) 3012 if (timercnt)
2320 { 3013 {
2321 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3014 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2322 if (waittime > to) waittime = to; 3015 if (waittime > to) waittime = to;
2323 } 3016 }
2324 3017
2325#if EV_PERIODIC_ENABLE 3018#if EV_PERIODIC_ENABLE
2326 if (periodiccnt) 3019 if (periodiccnt)
2327 { 3020 {
2328 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3021 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2329 if (waittime > to) waittime = to; 3022 if (waittime > to) waittime = to;
2330 } 3023 }
2331#endif 3024#endif
2332 3025
2333 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3026 /* don't let timeouts decrease the waittime below timeout_blocktime */
2334 if (expect_false (waittime < timeout_blocktime)) 3027 if (expect_false (waittime < timeout_blocktime))
2335 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;
2336 3034
2337 /* extra check because io_blocktime is commonly 0 */ 3035 /* extra check because io_blocktime is commonly 0 */
2338 if (expect_false (io_blocktime)) 3036 if (expect_false (io_blocktime))
2339 { 3037 {
2340 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3038 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2341 3039
2342 if (sleeptime > waittime - backend_fudge) 3040 if (sleeptime > waittime - backend_mintime)
2343 sleeptime = waittime - backend_fudge; 3041 sleeptime = waittime - backend_mintime;
2344 3042
2345 if (expect_true (sleeptime > 0.)) 3043 if (expect_true (sleeptime > 0.))
2346 { 3044 {
2347 ev_sleep (sleeptime); 3045 ev_sleep (sleeptime);
2348 waittime -= sleeptime; 3046 waittime -= sleeptime;
2349 } 3047 }
2350 } 3048 }
2351 } 3049 }
2352 3050
2353#if EV_MINIMAL < 2 3051#if EV_FEATURE_API
2354 ++loop_count; 3052 ++loop_count;
2355#endif 3053#endif
2356 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3054 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2357 backend_poll (EV_A_ waittime); 3055 backend_poll (EV_A_ waittime);
2358 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
2359 3066
2360 /* update ev_rt_now, do magic */ 3067 /* update ev_rt_now, do magic */
2361 time_update (EV_A_ waittime + sleeptime); 3068 time_update (EV_A_ waittime + sleeptime);
2362 } 3069 }
2363 3070
… …
2370#if EV_IDLE_ENABLE 3077#if EV_IDLE_ENABLE
2371 /* queue idle watchers unless other events are pending */ 3078 /* queue idle watchers unless other events are pending */
2372 idle_reify (EV_A); 3079 idle_reify (EV_A);
2373#endif 3080#endif
2374 3081
3082#if EV_CHECK_ENABLE
2375 /* queue check watchers, to be executed first */ 3083 /* queue check watchers, to be executed first */
2376 if (expect_false (checkcnt)) 3084 if (expect_false (checkcnt))
2377 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3085 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3086#endif
2378 3087
2379 EV_INVOKE_PENDING; 3088 EV_INVOKE_PENDING;
2380 } 3089 }
2381 while (expect_true ( 3090 while (expect_true (
2382 activecnt 3091 activecnt
2383 && !loop_done 3092 && !loop_done
2384 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3093 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2385 )); 3094 ));
2386 3095
2387 if (loop_done == EVUNLOOP_ONE) 3096 if (loop_done == EVBREAK_ONE)
2388 loop_done = EVUNLOOP_CANCEL; 3097 loop_done = EVBREAK_CANCEL;
2389 3098
2390#if EV_MINIMAL < 2 3099#if EV_FEATURE_API
2391 --loop_depth; 3100 --loop_depth;
2392#endif 3101#endif
2393} 3102}
2394 3103
2395void 3104void
2396ev_unloop (EV_P_ int how) 3105ev_break (EV_P_ int how)
2397{ 3106{
2398 loop_done = how; 3107 loop_done = how;
2399} 3108}
2400 3109
2401void 3110void
… …
2549 EV_FREQUENT_CHECK; 3258 EV_FREQUENT_CHECK;
2550 3259
2551 wlist_del (&anfds[w->fd].head, (WL)w); 3260 wlist_del (&anfds[w->fd].head, (WL)w);
2552 ev_stop (EV_A_ (W)w); 3261 ev_stop (EV_A_ (W)w);
2553 3262
2554 fd_change (EV_A_ w->fd, 1); 3263 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2555 3264
2556 EV_FREQUENT_CHECK; 3265 EV_FREQUENT_CHECK;
2557} 3266}
2558 3267
2559void noinline 3268void noinline
… …
2612 3321
2613void noinline 3322void noinline
2614ev_timer_again (EV_P_ ev_timer *w) 3323ev_timer_again (EV_P_ ev_timer *w)
2615{ 3324{
2616 EV_FREQUENT_CHECK; 3325 EV_FREQUENT_CHECK;
3326
3327 clear_pending (EV_A_ (W)w);
2617 3328
2618 if (ev_is_active (w)) 3329 if (ev_is_active (w))
2619 { 3330 {
2620 if (w->repeat) 3331 if (w->repeat)
2621 { 3332 {
… …
2651 if (w->reschedule_cb) 3362 if (w->reschedule_cb)
2652 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3363 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2653 else if (w->interval) 3364 else if (w->interval)
2654 { 3365 {
2655 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.));
2656 /* this formula differs from the one in periodic_reify because we do not always round up */ 3367 periodic_recalc (EV_A_ w);
2657 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2658 } 3368 }
2659 else 3369 else
2660 ev_at (w) = w->offset; 3370 ev_at (w) = w->offset;
2661 3371
2662 EV_FREQUENT_CHECK; 3372 EV_FREQUENT_CHECK;
… …
2711#endif 3421#endif
2712 3422
2713#ifndef SA_RESTART 3423#ifndef SA_RESTART
2714# define SA_RESTART 0 3424# define SA_RESTART 0
2715#endif 3425#endif
3426
3427#if EV_SIGNAL_ENABLE
2716 3428
2717void noinline 3429void noinline
2718ev_signal_start (EV_P_ ev_signal *w) 3430ev_signal_start (EV_P_ ev_signal *w)
2719{ 3431{
2720 if (expect_false (ev_is_active (w))) 3432 if (expect_false (ev_is_active (w)))
… …
2781 sa.sa_handler = ev_sighandler; 3493 sa.sa_handler = ev_sighandler;
2782 sigfillset (&sa.sa_mask); 3494 sigfillset (&sa.sa_mask);
2783 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 */
2784 sigaction (w->signum, &sa, 0); 3496 sigaction (w->signum, &sa, 0);
2785 3497
3498 if (origflags & EVFLAG_NOSIGMASK)
3499 {
2786 sigemptyset (&sa.sa_mask); 3500 sigemptyset (&sa.sa_mask);
2787 sigaddset (&sa.sa_mask, w->signum); 3501 sigaddset (&sa.sa_mask, w->signum);
2788 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3502 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3503 }
2789#endif 3504#endif
2790 } 3505 }
2791 3506
2792 EV_FREQUENT_CHECK; 3507 EV_FREQUENT_CHECK;
2793} 3508}
… …
2827 } 3542 }
2828 3543
2829 EV_FREQUENT_CHECK; 3544 EV_FREQUENT_CHECK;
2830} 3545}
2831 3546
3547#endif
3548
3549#if EV_CHILD_ENABLE
3550
2832void 3551void
2833ev_child_start (EV_P_ ev_child *w) 3552ev_child_start (EV_P_ ev_child *w)
2834{ 3553{
2835#if EV_MULTIPLICITY 3554#if EV_MULTIPLICITY
2836 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));
… …
2839 return; 3558 return;
2840 3559
2841 EV_FREQUENT_CHECK; 3560 EV_FREQUENT_CHECK;
2842 3561
2843 ev_start (EV_A_ (W)w, 1); 3562 ev_start (EV_A_ (W)w, 1);
2844 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3563 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845 3564
2846 EV_FREQUENT_CHECK; 3565 EV_FREQUENT_CHECK;
2847} 3566}
2848 3567
2849void 3568void
… …
2853 if (expect_false (!ev_is_active (w))) 3572 if (expect_false (!ev_is_active (w)))
2854 return; 3573 return;
2855 3574
2856 EV_FREQUENT_CHECK; 3575 EV_FREQUENT_CHECK;
2857 3576
2858 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3577 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2859 ev_stop (EV_A_ (W)w); 3578 ev_stop (EV_A_ (W)w);
2860 3579
2861 EV_FREQUENT_CHECK; 3580 EV_FREQUENT_CHECK;
2862} 3581}
3582
3583#endif
2863 3584
2864#if EV_STAT_ENABLE 3585#if EV_STAT_ENABLE
2865 3586
2866# ifdef _WIN32 3587# ifdef _WIN32
2867# undef lstat 3588# undef lstat
… …
2928 if (!pend || pend == path) 3649 if (!pend || pend == path)
2929 break; 3650 break;
2930 3651
2931 *pend = 0; 3652 *pend = 0;
2932 w->wd = inotify_add_watch (fs_fd, path, mask); 3653 w->wd = inotify_add_watch (fs_fd, path, mask);
2933 } 3654 }
2934 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3655 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2935 } 3656 }
2936 } 3657 }
2937 3658
2938 if (w->wd >= 0) 3659 if (w->wd >= 0)
2939 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);
2940 3661
2941 /* now re-arm timer, if required */ 3662 /* now re-arm timer, if required */
2942 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3663 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2943 ev_timer_again (EV_A_ &w->timer); 3664 ev_timer_again (EV_A_ &w->timer);
2944 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3665 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2952 3673
2953 if (wd < 0) 3674 if (wd < 0)
2954 return; 3675 return;
2955 3676
2956 w->wd = -2; 3677 w->wd = -2;
2957 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3678 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2958 wlist_del (&fs_hash [slot].head, (WL)w); 3679 wlist_del (&fs_hash [slot].head, (WL)w);
2959 3680
2960 /* remove this watcher, if others are watching it, they will rearm */ 3681 /* remove this watcher, if others are watching it, they will rearm */
2961 inotify_rm_watch (fs_fd, wd); 3682 inotify_rm_watch (fs_fd, wd);
2962} 3683}
… …
2964static void noinline 3685static void noinline
2965infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3686infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2966{ 3687{
2967 if (slot < 0) 3688 if (slot < 0)
2968 /* overflow, need to check for all hash slots */ 3689 /* overflow, need to check for all hash slots */
2969 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3690 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2970 infy_wd (EV_A_ slot, wd, ev); 3691 infy_wd (EV_A_ slot, wd, ev);
2971 else 3692 else
2972 { 3693 {
2973 WL w_; 3694 WL w_;
2974 3695
2975 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3696 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2976 { 3697 {
2977 ev_stat *w = (ev_stat *)w_; 3698 ev_stat *w = (ev_stat *)w_;
2978 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 */
2979 3700
2980 if (w->wd == wd || wd == -1) 3701 if (w->wd == wd || wd == -1)
2981 { 3702 {
2982 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3703 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2983 { 3704 {
2984 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);
2985 w->wd = -1; 3706 w->wd = -1;
2986 infy_add (EV_A_ w); /* re-add, no matter what */ 3707 infy_add (EV_A_ w); /* re-add, no matter what */
2987 } 3708 }
2988 3709
2989 stat_timer_cb (EV_A_ &w->timer, 0); 3710 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3005 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3726 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3006 ofs += sizeof (struct inotify_event) + ev->len; 3727 ofs += sizeof (struct inotify_event) + ev->len;
3007 } 3728 }
3008} 3729}
3009 3730
3010inline_size unsigned int
3011ev_linux_version (void)
3012{
3013 struct utsname buf;
3014 unsigned int v;
3015 int i;
3016 char *p = buf.release;
3017
3018 if (uname (&buf))
3019 return 0;
3020
3021 for (i = 3+1; --i; )
3022 {
3023 unsigned int c = 0;
3024
3025 for (;;)
3026 {
3027 if (*p >= '0' && *p <= '9')
3028 c = c * 10 + *p++ - '0';
3029 else
3030 {
3031 p += *p == '.';
3032 break;
3033 }
3034 }
3035
3036 v = (v << 8) | c;
3037 }
3038
3039 return v;
3040}
3041
3042inline_size void 3731inline_size void ecb_cold
3043ev_check_2625 (EV_P) 3732ev_check_2625 (EV_P)
3044{ 3733{
3045 /* kernels < 2.6.25 are borked 3734 /* kernels < 2.6.25 are borked
3046 * 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
3047 */ 3736 */
… …
3103 ev_io_set (&fs_w, fs_fd, EV_READ); 3792 ev_io_set (&fs_w, fs_fd, EV_READ);
3104 ev_io_start (EV_A_ &fs_w); 3793 ev_io_start (EV_A_ &fs_w);
3105 ev_unref (EV_A); 3794 ev_unref (EV_A);
3106 } 3795 }
3107 3796
3108 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3797 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3109 { 3798 {
3110 WL w_ = fs_hash [slot].head; 3799 WL w_ = fs_hash [slot].head;
3111 fs_hash [slot].head = 0; 3800 fs_hash [slot].head = 0;
3112 3801
3113 while (w_) 3802 while (w_)
… …
3288 3977
3289 EV_FREQUENT_CHECK; 3978 EV_FREQUENT_CHECK;
3290} 3979}
3291#endif 3980#endif
3292 3981
3982#if EV_PREPARE_ENABLE
3293void 3983void
3294ev_prepare_start (EV_P_ ev_prepare *w) 3984ev_prepare_start (EV_P_ ev_prepare *w)
3295{ 3985{
3296 if (expect_false (ev_is_active (w))) 3986 if (expect_false (ev_is_active (w)))
3297 return; 3987 return;
… …
3323 4013
3324 ev_stop (EV_A_ (W)w); 4014 ev_stop (EV_A_ (W)w);
3325 4015
3326 EV_FREQUENT_CHECK; 4016 EV_FREQUENT_CHECK;
3327} 4017}
4018#endif
3328 4019
4020#if EV_CHECK_ENABLE
3329void 4021void
3330ev_check_start (EV_P_ ev_check *w) 4022ev_check_start (EV_P_ ev_check *w)
3331{ 4023{
3332 if (expect_false (ev_is_active (w))) 4024 if (expect_false (ev_is_active (w)))
3333 return; 4025 return;
… …
3359 4051
3360 ev_stop (EV_A_ (W)w); 4052 ev_stop (EV_A_ (W)w);
3361 4053
3362 EV_FREQUENT_CHECK; 4054 EV_FREQUENT_CHECK;
3363} 4055}
4056#endif
3364 4057
3365#if EV_EMBED_ENABLE 4058#if EV_EMBED_ENABLE
3366void noinline 4059void noinline
3367ev_embed_sweep (EV_P_ ev_embed *w) 4060ev_embed_sweep (EV_P_ ev_embed *w)
3368{ 4061{
3369 ev_loop (w->other, EVLOOP_NONBLOCK); 4062 ev_run (w->other, EVRUN_NOWAIT);
3370} 4063}
3371 4064
3372static void 4065static void
3373embed_io_cb (EV_P_ ev_io *io, int revents) 4066embed_io_cb (EV_P_ ev_io *io, int revents)
3374{ 4067{
3375 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4068 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3376 4069
3377 if (ev_cb (w)) 4070 if (ev_cb (w))
3378 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4071 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3379 else 4072 else
3380 ev_loop (w->other, EVLOOP_NONBLOCK); 4073 ev_run (w->other, EVRUN_NOWAIT);
3381} 4074}
3382 4075
3383static void 4076static void
3384embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4077embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3385{ 4078{
… …
3389 EV_P = w->other; 4082 EV_P = w->other;
3390 4083
3391 while (fdchangecnt) 4084 while (fdchangecnt)
3392 { 4085 {
3393 fd_reify (EV_A); 4086 fd_reify (EV_A);
3394 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4087 ev_run (EV_A_ EVRUN_NOWAIT);
3395 } 4088 }
3396 } 4089 }
3397} 4090}
3398 4091
3399static void 4092static void
… …
3405 4098
3406 { 4099 {
3407 EV_P = w->other; 4100 EV_P = w->other;
3408 4101
3409 ev_loop_fork (EV_A); 4102 ev_loop_fork (EV_A);
3410 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4103 ev_run (EV_A_ EVRUN_NOWAIT);
3411 } 4104 }
3412 4105
3413 ev_embed_start (EV_A_ w); 4106 ev_embed_start (EV_A_ w);
3414} 4107}
3415 4108
… …
3507 4200
3508 EV_FREQUENT_CHECK; 4201 EV_FREQUENT_CHECK;
3509} 4202}
3510#endif 4203#endif
3511 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
3512#if EV_ASYNC_ENABLE 4246#if EV_ASYNC_ENABLE
3513void 4247void
3514ev_async_start (EV_P_ ev_async *w) 4248ev_async_start (EV_P_ ev_async *w)
3515{ 4249{
3516 if (expect_false (ev_is_active (w))) 4250 if (expect_false (ev_is_active (w)))
3517 return; 4251 return;
4252
4253 w->sent = 0;
3518 4254
3519 evpipe_init (EV_A); 4255 evpipe_init (EV_A);
3520 4256
3521 EV_FREQUENT_CHECK; 4257 EV_FREQUENT_CHECK;
3522 4258
… …
3600{ 4336{
3601 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));
3602 4338
3603 if (expect_false (!once)) 4339 if (expect_false (!once))
3604 { 4340 {
3605 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4341 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3606 return; 4342 return;
3607 } 4343 }
3608 4344
3609 once->cb = cb; 4345 once->cb = cb;
3610 once->arg = arg; 4346 once->arg = arg;
… …
3625} 4361}
3626 4362
3627/*****************************************************************************/ 4363/*****************************************************************************/
3628 4364
3629#if EV_WALK_ENABLE 4365#if EV_WALK_ENABLE
3630void 4366void ecb_cold
3631ev_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))
3632{ 4368{
3633 int i, j; 4369 int i, j;
3634 ev_watcher_list *wl, *wn; 4370 ev_watcher_list *wl, *wn;
3635 4371
… …
3679 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4415 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3680#endif 4416#endif
3681 4417
3682#if EV_IDLE_ENABLE 4418#if EV_IDLE_ENABLE
3683 if (types & EV_IDLE) 4419 if (types & EV_IDLE)
3684 for (j = NUMPRI; i--; ) 4420 for (j = NUMPRI; j--; )
3685 for (i = idlecnt [j]; i--; ) 4421 for (i = idlecnt [j]; i--; )
3686 cb (EV_A_ EV_IDLE, idles [j][i]); 4422 cb (EV_A_ EV_IDLE, idles [j][i]);
3687#endif 4423#endif
3688 4424
3689#if EV_FORK_ENABLE 4425#if EV_FORK_ENABLE
… …
3697 if (types & EV_ASYNC) 4433 if (types & EV_ASYNC)
3698 for (i = asynccnt; i--; ) 4434 for (i = asynccnt; i--; )
3699 cb (EV_A_ EV_ASYNC, asyncs [i]); 4435 cb (EV_A_ EV_ASYNC, asyncs [i]);
3700#endif 4436#endif
3701 4437
4438#if EV_PREPARE_ENABLE
3702 if (types & EV_PREPARE) 4439 if (types & EV_PREPARE)
3703 for (i = preparecnt; i--; ) 4440 for (i = preparecnt; i--; )
3704#if EV_EMBED_ENABLE 4441# if EV_EMBED_ENABLE
3705 if (ev_cb (prepares [i]) != embed_prepare_cb) 4442 if (ev_cb (prepares [i]) != embed_prepare_cb)
3706#endif 4443# endif
3707 cb (EV_A_ EV_PREPARE, prepares [i]); 4444 cb (EV_A_ EV_PREPARE, prepares [i]);
4445#endif
3708 4446
4447#if EV_CHECK_ENABLE
3709 if (types & EV_CHECK) 4448 if (types & EV_CHECK)
3710 for (i = checkcnt; i--; ) 4449 for (i = checkcnt; i--; )
3711 cb (EV_A_ EV_CHECK, checks [i]); 4450 cb (EV_A_ EV_CHECK, checks [i]);
4451#endif
3712 4452
4453#if EV_SIGNAL_ENABLE
3713 if (types & EV_SIGNAL) 4454 if (types & EV_SIGNAL)
3714 for (i = 0; i < EV_NSIG - 1; ++i) 4455 for (i = 0; i < EV_NSIG - 1; ++i)
3715 for (wl = signals [i].head; wl; ) 4456 for (wl = signals [i].head; wl; )
3716 { 4457 {
3717 wn = wl->next; 4458 wn = wl->next;
3718 cb (EV_A_ EV_SIGNAL, wl); 4459 cb (EV_A_ EV_SIGNAL, wl);
3719 wl = wn; 4460 wl = wn;
3720 } 4461 }
4462#endif
3721 4463
4464#if EV_CHILD_ENABLE
3722 if (types & EV_CHILD) 4465 if (types & EV_CHILD)
3723 for (i = EV_PID_HASHSIZE; i--; ) 4466 for (i = (EV_PID_HASHSIZE); i--; )
3724 for (wl = childs [i]; wl; ) 4467 for (wl = childs [i]; wl; )
3725 { 4468 {
3726 wn = wl->next; 4469 wn = wl->next;
3727 cb (EV_A_ EV_CHILD, wl); 4470 cb (EV_A_ EV_CHILD, wl);
3728 wl = wn; 4471 wl = wn;
3729 } 4472 }
4473#endif
3730/* EV_STAT 0x00001000 /* stat data changed */ 4474/* EV_STAT 0x00001000 /* stat data changed */
3731/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4475/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3732} 4476}
3733#endif 4477#endif
3734 4478
3735#if EV_MULTIPLICITY 4479#if EV_MULTIPLICITY
3736 #include "ev_wrap.h" 4480 #include "ev_wrap.h"
3737#endif 4481#endif
3738 4482
3739#ifdef __cplusplus
3740}
3741#endif
3742

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