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Comparing libev/ev.c (file contents):
Revision 1.326 by root, Tue Jan 26 04:19:37 2010 UTC vs.
Revision 1.411 by root, Tue Feb 21 04:34:02 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 #endif
583 #endif
584#endif
585
586#ifndef ECB_MEMORY_FENCE
587 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)
588 #define ECB_MEMORY_FENCE __sync_synchronize ()
589 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
590 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
591 #elif _MSC_VER >= 1400 /* VC++ 2005 */
592 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
593 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
594 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
595 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
596 #elif defined(_WIN32)
597 #include <WinNT.h>
598 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
599 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600 #include <mbarrier.h>
601 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
602 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
603 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
604 #endif
605#endif
606
607#ifndef ECB_MEMORY_FENCE
608 #if !ECB_AVOID_PTHREADS
609 /*
610 * if you get undefined symbol references to pthread_mutex_lock,
611 * or failure to find pthread.h, then you should implement
612 * the ECB_MEMORY_FENCE operations for your cpu/compiler
613 * OR provide pthread.h and link against the posix thread library
614 * of your system.
615 */
616 #include <pthread.h>
617 #define ECB_NEEDS_PTHREADS 1
618 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
619
620 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
621 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
622 #endif
623#endif
624
625#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
626 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
627#endif
628
629#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
630 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
631#endif
632
633/*****************************************************************************/
634
635#define ECB_C99 (__STDC_VERSION__ >= 199901L)
636
637#if __cplusplus
638 #define ecb_inline static inline
639#elif ECB_GCC_VERSION(2,5)
640 #define ecb_inline static __inline__
641#elif ECB_C99
642 #define ecb_inline static inline
643#else
644 #define ecb_inline static
645#endif
646
647#if ECB_GCC_VERSION(3,3)
648 #define ecb_restrict __restrict__
649#elif ECB_C99
650 #define ecb_restrict restrict
651#else
652 #define ecb_restrict
653#endif
654
655typedef int ecb_bool;
656
657#define ECB_CONCAT_(a, b) a ## b
658#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
659#define ECB_STRINGIFY_(a) # a
660#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
661
662#define ecb_function_ ecb_inline
663
664#if ECB_GCC_VERSION(3,1)
665 #define ecb_attribute(attrlist) __attribute__(attrlist)
666 #define ecb_is_constant(expr) __builtin_constant_p (expr)
667 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
668 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
669#else
670 #define ecb_attribute(attrlist)
671 #define ecb_is_constant(expr) 0
672 #define ecb_expect(expr,value) (expr)
673 #define ecb_prefetch(addr,rw,locality)
674#endif
675
676/* no emulation for ecb_decltype */
677#if ECB_GCC_VERSION(4,5)
678 #define ecb_decltype(x) __decltype(x)
679#elif ECB_GCC_VERSION(3,0)
680 #define ecb_decltype(x) __typeof(x)
681#endif
682
683#define ecb_noinline ecb_attribute ((__noinline__))
684#define ecb_noreturn ecb_attribute ((__noreturn__))
685#define ecb_unused ecb_attribute ((__unused__))
686#define ecb_const ecb_attribute ((__const__))
687#define ecb_pure ecb_attribute ((__pure__))
688
689#if ECB_GCC_VERSION(4,3)
690 #define ecb_artificial ecb_attribute ((__artificial__))
691 #define ecb_hot ecb_attribute ((__hot__))
692 #define ecb_cold ecb_attribute ((__cold__))
693#else
694 #define ecb_artificial
695 #define ecb_hot
696 #define ecb_cold
697#endif
698
699/* put around conditional expressions if you are very sure that the */
700/* expression is mostly true or mostly false. note that these return */
701/* booleans, not the expression. */
475#define expect_false(expr) expect ((expr) != 0, 0) 702#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
476#define expect_true(expr) expect ((expr) != 0, 1) 703#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
704/* for compatibility to the rest of the world */
705#define ecb_likely(expr) ecb_expect_true (expr)
706#define ecb_unlikely(expr) ecb_expect_false (expr)
707
708/* count trailing zero bits and count # of one bits */
709#if ECB_GCC_VERSION(3,4)
710 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
711 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
712 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
713 #define ecb_ctz32(x) __builtin_ctz (x)
714 #define ecb_ctz64(x) __builtin_ctzll (x)
715 #define ecb_popcount32(x) __builtin_popcount (x)
716 /* no popcountll */
717#else
718 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
719 ecb_function_ int
720 ecb_ctz32 (uint32_t x)
721 {
722 int r = 0;
723
724 x &= ~x + 1; /* this isolates the lowest bit */
725
726#if ECB_branchless_on_i386
727 r += !!(x & 0xaaaaaaaa) << 0;
728 r += !!(x & 0xcccccccc) << 1;
729 r += !!(x & 0xf0f0f0f0) << 2;
730 r += !!(x & 0xff00ff00) << 3;
731 r += !!(x & 0xffff0000) << 4;
732#else
733 if (x & 0xaaaaaaaa) r += 1;
734 if (x & 0xcccccccc) r += 2;
735 if (x & 0xf0f0f0f0) r += 4;
736 if (x & 0xff00ff00) r += 8;
737 if (x & 0xffff0000) r += 16;
738#endif
739
740 return r;
741 }
742
743 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
744 ecb_function_ int
745 ecb_ctz64 (uint64_t x)
746 {
747 int shift = x & 0xffffffffU ? 0 : 32;
748 return ecb_ctz32 (x >> shift) + shift;
749 }
750
751 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
752 ecb_function_ int
753 ecb_popcount32 (uint32_t x)
754 {
755 x -= (x >> 1) & 0x55555555;
756 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
757 x = ((x >> 4) + x) & 0x0f0f0f0f;
758 x *= 0x01010101;
759
760 return x >> 24;
761 }
762
763 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
764 ecb_function_ int ecb_ld32 (uint32_t x)
765 {
766 int r = 0;
767
768 if (x >> 16) { x >>= 16; r += 16; }
769 if (x >> 8) { x >>= 8; r += 8; }
770 if (x >> 4) { x >>= 4; r += 4; }
771 if (x >> 2) { x >>= 2; r += 2; }
772 if (x >> 1) { r += 1; }
773
774 return r;
775 }
776
777 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
778 ecb_function_ int ecb_ld64 (uint64_t x)
779 {
780 int r = 0;
781
782 if (x >> 32) { x >>= 32; r += 32; }
783
784 return r + ecb_ld32 (x);
785 }
786#endif
787
788ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
789ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
790{
791 return ( (x * 0x0802U & 0x22110U)
792 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
793}
794
795ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
796ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
797{
798 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
799 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
800 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
801 x = ( x >> 8 ) | ( x << 8);
802
803 return x;
804}
805
806ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
807ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
808{
809 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
810 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
811 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
812 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
813 x = ( x >> 16 ) | ( x << 16);
814
815 return x;
816}
817
818/* popcount64 is only available on 64 bit cpus as gcc builtin */
819/* so for this version we are lazy */
820ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
821ecb_function_ int
822ecb_popcount64 (uint64_t x)
823{
824 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
825}
826
827ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
828ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
829ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
830ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
831ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
832ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
833ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
834ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
835
836ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
837ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
838ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
839ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
840ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
841ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
842ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
843ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
844
845#if ECB_GCC_VERSION(4,3)
846 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
847 #define ecb_bswap32(x) __builtin_bswap32 (x)
848 #define ecb_bswap64(x) __builtin_bswap64 (x)
849#else
850 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
851 ecb_function_ uint16_t
852 ecb_bswap16 (uint16_t x)
853 {
854 return ecb_rotl16 (x, 8);
855 }
856
857 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
858 ecb_function_ uint32_t
859 ecb_bswap32 (uint32_t x)
860 {
861 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
862 }
863
864 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
865 ecb_function_ uint64_t
866 ecb_bswap64 (uint64_t x)
867 {
868 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
869 }
870#endif
871
872#if ECB_GCC_VERSION(4,5)
873 #define ecb_unreachable() __builtin_unreachable ()
874#else
875 /* this seems to work fine, but gcc always emits a warning for it :/ */
876 ecb_inline void ecb_unreachable (void) ecb_noreturn;
877 ecb_inline void ecb_unreachable (void) { }
878#endif
879
880/* try to tell the compiler that some condition is definitely true */
881#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
882
883ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
884ecb_inline unsigned char
885ecb_byteorder_helper (void)
886{
887 const uint32_t u = 0x11223344;
888 return *(unsigned char *)&u;
889}
890
891ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
892ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
893ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
894ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
895
896#if ECB_GCC_VERSION(3,0) || ECB_C99
897 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
898#else
899 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
900#endif
901
902#if __cplusplus
903 template<typename T>
904 static inline T ecb_div_rd (T val, T div)
905 {
906 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
907 }
908 template<typename T>
909 static inline T ecb_div_ru (T val, T div)
910 {
911 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
912 }
913#else
914 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
915 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
916#endif
917
918#if ecb_cplusplus_does_not_suck
919 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
920 template<typename T, int N>
921 static inline int ecb_array_length (const T (&arr)[N])
922 {
923 return N;
924 }
925#else
926 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
927#endif
928
929#endif
930
931/* ECB.H END */
932
933#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
934/* if your architecture doesn't need memory fences, e.g. because it is
935 * single-cpu/core, or if you use libev in a project that doesn't use libev
936 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
937 * libev, in which cases the memory fences become nops.
938 * alternatively, you can remove this #error and link against libpthread,
939 * which will then provide the memory fences.
940 */
941# error "memory fences not defined for your architecture, please report"
942#endif
943
944#ifndef ECB_MEMORY_FENCE
945# define ECB_MEMORY_FENCE do { } while (0)
946# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
947# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
948#endif
949
950#define expect_false(cond) ecb_expect_false (cond)
951#define expect_true(cond) ecb_expect_true (cond)
952#define noinline ecb_noinline
953
477#define inline_size static inline 954#define inline_size ecb_inline
478 955
479#if EV_MINIMAL 956#if EV_FEATURE_CODE
957# define inline_speed ecb_inline
958#else
480# define inline_speed static noinline 959# define inline_speed static noinline
481#else
482# define inline_speed static inline
483#endif 960#endif
484 961
485#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 962#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
486 963
487#if EV_MINPRI == EV_MAXPRI 964#if EV_MINPRI == EV_MAXPRI
… …
500#define ev_active(w) ((W)(w))->active 977#define ev_active(w) ((W)(w))->active
501#define ev_at(w) ((WT)(w))->at 978#define ev_at(w) ((WT)(w))->at
502 979
503#if EV_USE_REALTIME 980#if EV_USE_REALTIME
504/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 981/* 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 */ 982/* giving it a reasonably high chance of working on typical architectures */
506static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 983static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
507#endif 984#endif
508 985
509#if EV_USE_MONOTONIC 986#if EV_USE_MONOTONIC
510static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 987static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
524# include "ev_win32.c" 1001# include "ev_win32.c"
525#endif 1002#endif
526 1003
527/*****************************************************************************/ 1004/*****************************************************************************/
528 1005
1006/* define a suitable floor function (only used by periodics atm) */
1007
1008#if EV_USE_FLOOR
1009# include <math.h>
1010# define ev_floor(v) floor (v)
1011#else
1012
1013#include <float.h>
1014
1015/* a floor() replacement function, should be independent of ev_tstamp type */
1016static ev_tstamp noinline
1017ev_floor (ev_tstamp v)
1018{
1019 /* the choice of shift factor is not terribly important */
1020#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1021 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1022#else
1023 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1024#endif
1025
1026 /* argument too large for an unsigned long? */
1027 if (expect_false (v >= shift))
1028 {
1029 ev_tstamp f;
1030
1031 if (v == v - 1.)
1032 return v; /* very large number */
1033
1034 f = shift * ev_floor (v * (1. / shift));
1035 return f + ev_floor (v - f);
1036 }
1037
1038 /* special treatment for negative args? */
1039 if (expect_false (v < 0.))
1040 {
1041 ev_tstamp f = -ev_floor (-v);
1042
1043 return f - (f == v ? 0 : 1);
1044 }
1045
1046 /* fits into an unsigned long */
1047 return (unsigned long)v;
1048}
1049
1050#endif
1051
1052/*****************************************************************************/
1053
1054#ifdef __linux
1055# include <sys/utsname.h>
1056#endif
1057
1058static unsigned int noinline ecb_cold
1059ev_linux_version (void)
1060{
1061#ifdef __linux
1062 unsigned int v = 0;
1063 struct utsname buf;
1064 int i;
1065 char *p = buf.release;
1066
1067 if (uname (&buf))
1068 return 0;
1069
1070 for (i = 3+1; --i; )
1071 {
1072 unsigned int c = 0;
1073
1074 for (;;)
1075 {
1076 if (*p >= '0' && *p <= '9')
1077 c = c * 10 + *p++ - '0';
1078 else
1079 {
1080 p += *p == '.';
1081 break;
1082 }
1083 }
1084
1085 v = (v << 8) | c;
1086 }
1087
1088 return v;
1089#else
1090 return 0;
1091#endif
1092}
1093
1094/*****************************************************************************/
1095
1096#if EV_AVOID_STDIO
1097static void noinline ecb_cold
1098ev_printerr (const char *msg)
1099{
1100 write (STDERR_FILENO, msg, strlen (msg));
1101}
1102#endif
1103
529static void (*syserr_cb)(const char *msg); 1104static void (*syserr_cb)(const char *msg);
530 1105
531void 1106void ecb_cold
532ev_set_syserr_cb (void (*cb)(const char *msg)) 1107ev_set_syserr_cb (void (*cb)(const char *msg))
533{ 1108{
534 syserr_cb = cb; 1109 syserr_cb = cb;
535} 1110}
536 1111
537static void noinline 1112static void noinline ecb_cold
538ev_syserr (const char *msg) 1113ev_syserr (const char *msg)
539{ 1114{
540 if (!msg) 1115 if (!msg)
541 msg = "(libev) system error"; 1116 msg = "(libev) system error";
542 1117
543 if (syserr_cb) 1118 if (syserr_cb)
544 syserr_cb (msg); 1119 syserr_cb (msg);
545 else 1120 else
546 { 1121 {
1122#if EV_AVOID_STDIO
1123 ev_printerr (msg);
1124 ev_printerr (": ");
1125 ev_printerr (strerror (errno));
1126 ev_printerr ("\n");
1127#else
547 perror (msg); 1128 perror (msg);
1129#endif
548 abort (); 1130 abort ();
549 } 1131 }
550} 1132}
551 1133
552static void * 1134static void *
553ev_realloc_emul (void *ptr, long size) 1135ev_realloc_emul (void *ptr, long size)
554{ 1136{
1137#if __GLIBC__
1138 return realloc (ptr, size);
1139#else
555 /* some systems, notably openbsd and darwin, fail to properly 1140 /* some systems, notably openbsd and darwin, fail to properly
556 * implement realloc (x, 0) (as required by both ansi c-98 and 1141 * implement realloc (x, 0) (as required by both ansi c-89 and
557 * the single unix specification, so work around them here. 1142 * the single unix specification, so work around them here.
558 */ 1143 */
559 1144
560 if (size) 1145 if (size)
561 return realloc (ptr, size); 1146 return realloc (ptr, size);
562 1147
563 free (ptr); 1148 free (ptr);
564 return 0; 1149 return 0;
1150#endif
565} 1151}
566 1152
567static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1153static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
568 1154
569void 1155void ecb_cold
570ev_set_allocator (void *(*cb)(void *ptr, long size)) 1156ev_set_allocator (void *(*cb)(void *ptr, long size))
571{ 1157{
572 alloc = cb; 1158 alloc = cb;
573} 1159}
574 1160
… …
577{ 1163{
578 ptr = alloc (ptr, size); 1164 ptr = alloc (ptr, size);
579 1165
580 if (!ptr && size) 1166 if (!ptr && size)
581 { 1167 {
1168#if EV_AVOID_STDIO
1169 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1170#else
582 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1171 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1172#endif
583 abort (); 1173 abort ();
584 } 1174 }
585 1175
586 return ptr; 1176 return ptr;
587} 1177}
… …
603 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1193 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
604 unsigned char unused; 1194 unsigned char unused;
605#if EV_USE_EPOLL 1195#if EV_USE_EPOLL
606 unsigned int egen; /* generation counter to counter epoll bugs */ 1196 unsigned int egen; /* generation counter to counter epoll bugs */
607#endif 1197#endif
608#if EV_SELECT_IS_WINSOCKET 1198#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
609 SOCKET handle; 1199 SOCKET handle;
1200#endif
1201#if EV_USE_IOCP
1202 OVERLAPPED or, ow;
610#endif 1203#endif
611} ANFD; 1204} ANFD;
612 1205
613/* stores the pending event set for a given watcher */ 1206/* stores the pending event set for a given watcher */
614typedef struct 1207typedef struct
… …
656 #undef VAR 1249 #undef VAR
657 }; 1250 };
658 #include "ev_wrap.h" 1251 #include "ev_wrap.h"
659 1252
660 static struct ev_loop default_loop_struct; 1253 static struct ev_loop default_loop_struct;
661 struct ev_loop *ev_default_loop_ptr; 1254 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
662 1255
663#else 1256#else
664 1257
665 ev_tstamp ev_rt_now; 1258 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
666 #define VAR(name,decl) static decl; 1259 #define VAR(name,decl) static decl;
667 #include "ev_vars.h" 1260 #include "ev_vars.h"
668 #undef VAR 1261 #undef VAR
669 1262
670 static int ev_default_loop_ptr; 1263 static int ev_default_loop_ptr;
671 1264
672#endif 1265#endif
673 1266
674#if EV_MINIMAL < 2 1267#if EV_FEATURE_API
675# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1268# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
676# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1269# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
677# define EV_INVOKE_PENDING invoke_cb (EV_A) 1270# define EV_INVOKE_PENDING invoke_cb (EV_A)
678#else 1271#else
679# define EV_RELEASE_CB (void)0 1272# define EV_RELEASE_CB (void)0
680# define EV_ACQUIRE_CB (void)0 1273# define EV_ACQUIRE_CB (void)0
681# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1274# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
682#endif 1275#endif
683 1276
684#define EVUNLOOP_RECURSE 0x80 1277#define EVBREAK_RECURSE 0x80
685 1278
686/*****************************************************************************/ 1279/*****************************************************************************/
687 1280
688#ifndef EV_HAVE_EV_TIME 1281#ifndef EV_HAVE_EV_TIME
689ev_tstamp 1282ev_tstamp
… …
733 if (delay > 0.) 1326 if (delay > 0.)
734 { 1327 {
735#if EV_USE_NANOSLEEP 1328#if EV_USE_NANOSLEEP
736 struct timespec ts; 1329 struct timespec ts;
737 1330
738 ts.tv_sec = (time_t)delay; 1331 EV_TS_SET (ts, delay);
739 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
740
741 nanosleep (&ts, 0); 1332 nanosleep (&ts, 0);
742#elif defined(_WIN32) 1333#elif defined(_WIN32)
743 Sleep ((unsigned long)(delay * 1e3)); 1334 Sleep ((unsigned long)(delay * 1e3));
744#else 1335#else
745 struct timeval tv; 1336 struct timeval tv;
746 1337
747 tv.tv_sec = (time_t)delay;
748 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
749
750 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1338 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
751 /* something not guaranteed by newer posix versions, but guaranteed */ 1339 /* something not guaranteed by newer posix versions, but guaranteed */
752 /* by older ones */ 1340 /* by older ones */
1341 EV_TV_SET (tv, delay);
753 select (0, 0, 0, 0, &tv); 1342 select (0, 0, 0, 0, &tv);
754#endif 1343#endif
755 } 1344 }
756} 1345}
757 1346
758/*****************************************************************************/ 1347/*****************************************************************************/
759 1348
760#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1349#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
761 1350
762/* find a suitable new size for the given array, */ 1351/* find a suitable new size for the given array, */
763/* hopefully by rounding to a ncie-to-malloc size */ 1352/* hopefully by rounding to a nice-to-malloc size */
764inline_size int 1353inline_size int
765array_nextsize (int elem, int cur, int cnt) 1354array_nextsize (int elem, int cur, int cnt)
766{ 1355{
767 int ncur = cur + 1; 1356 int ncur = cur + 1;
768 1357
769 do 1358 do
770 ncur <<= 1; 1359 ncur <<= 1;
771 while (cnt > ncur); 1360 while (cnt > ncur);
772 1361
773 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1362 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
774 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1363 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
775 { 1364 {
776 ncur *= elem; 1365 ncur *= elem;
777 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1366 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
778 ncur = ncur - sizeof (void *) * 4; 1367 ncur = ncur - sizeof (void *) * 4;
… …
780 } 1369 }
781 1370
782 return ncur; 1371 return ncur;
783} 1372}
784 1373
785static noinline void * 1374static void * noinline ecb_cold
786array_realloc (int elem, void *base, int *cur, int cnt) 1375array_realloc (int elem, void *base, int *cur, int cnt)
787{ 1376{
788 *cur = array_nextsize (elem, *cur, cnt); 1377 *cur = array_nextsize (elem, *cur, cnt);
789 return ev_realloc (base, elem * *cur); 1378 return ev_realloc (base, elem * *cur);
790} 1379}
… …
793 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1382 memset ((void *)(base), 0, sizeof (*(base)) * (count))
794 1383
795#define array_needsize(type,base,cur,cnt,init) \ 1384#define array_needsize(type,base,cur,cnt,init) \
796 if (expect_false ((cnt) > (cur))) \ 1385 if (expect_false ((cnt) > (cur))) \
797 { \ 1386 { \
798 int ocur_ = (cur); \ 1387 int ecb_unused ocur_ = (cur); \
799 (base) = (type *)array_realloc \ 1388 (base) = (type *)array_realloc \
800 (sizeof (type), (base), &(cur), (cnt)); \ 1389 (sizeof (type), (base), &(cur), (cnt)); \
801 init ((base) + (ocur_), (cur) - ocur_); \ 1390 init ((base) + (ocur_), (cur) - ocur_); \
802 } 1391 }
803 1392
… …
864} 1453}
865 1454
866/*****************************************************************************/ 1455/*****************************************************************************/
867 1456
868inline_speed void 1457inline_speed void
869fd_event_nc (EV_P_ int fd, int revents) 1458fd_event_nocheck (EV_P_ int fd, int revents)
870{ 1459{
871 ANFD *anfd = anfds + fd; 1460 ANFD *anfd = anfds + fd;
872 ev_io *w; 1461 ev_io *w;
873 1462
874 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1463 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
886fd_event (EV_P_ int fd, int revents) 1475fd_event (EV_P_ int fd, int revents)
887{ 1476{
888 ANFD *anfd = anfds + fd; 1477 ANFD *anfd = anfds + fd;
889 1478
890 if (expect_true (!anfd->reify)) 1479 if (expect_true (!anfd->reify))
891 fd_event_nc (EV_A_ fd, revents); 1480 fd_event_nocheck (EV_A_ fd, revents);
892} 1481}
893 1482
894void 1483void
895ev_feed_fd_event (EV_P_ int fd, int revents) 1484ev_feed_fd_event (EV_P_ int fd, int revents)
896{ 1485{
897 if (fd >= 0 && fd < anfdmax) 1486 if (fd >= 0 && fd < anfdmax)
898 fd_event_nc (EV_A_ fd, revents); 1487 fd_event_nocheck (EV_A_ fd, revents);
899} 1488}
900 1489
901/* make sure the external fd watch events are in-sync */ 1490/* make sure the external fd watch events are in-sync */
902/* with the kernel/libev internal state */ 1491/* with the kernel/libev internal state */
903inline_size void 1492inline_size void
904fd_reify (EV_P) 1493fd_reify (EV_P)
905{ 1494{
906 int i; 1495 int i;
907 1496
1497#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1498 for (i = 0; i < fdchangecnt; ++i)
1499 {
1500 int fd = fdchanges [i];
1501 ANFD *anfd = anfds + fd;
1502
1503 if (anfd->reify & EV__IOFDSET && anfd->head)
1504 {
1505 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1506
1507 if (handle != anfd->handle)
1508 {
1509 unsigned long arg;
1510
1511 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1512
1513 /* handle changed, but fd didn't - we need to do it in two steps */
1514 backend_modify (EV_A_ fd, anfd->events, 0);
1515 anfd->events = 0;
1516 anfd->handle = handle;
1517 }
1518 }
1519 }
1520#endif
1521
908 for (i = 0; i < fdchangecnt; ++i) 1522 for (i = 0; i < fdchangecnt; ++i)
909 { 1523 {
910 int fd = fdchanges [i]; 1524 int fd = fdchanges [i];
911 ANFD *anfd = anfds + fd; 1525 ANFD *anfd = anfds + fd;
912 ev_io *w; 1526 ev_io *w;
913 1527
914 unsigned char events = 0; 1528 unsigned char o_events = anfd->events;
1529 unsigned char o_reify = anfd->reify;
915 1530
916 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1531 anfd->reify = 0;
917 events |= (unsigned char)w->events;
918 1532
919#if EV_SELECT_IS_WINSOCKET 1533 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
920 if (events)
921 { 1534 {
922 unsigned long arg; 1535 anfd->events = 0;
923 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1536
924 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1537 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1538 anfd->events |= (unsigned char)w->events;
1539
1540 if (o_events != anfd->events)
1541 o_reify = EV__IOFDSET; /* actually |= */
925 } 1542 }
926#endif
927 1543
928 { 1544 if (o_reify & EV__IOFDSET)
929 unsigned char o_events = anfd->events;
930 unsigned char o_reify = anfd->reify;
931
932 anfd->reify = 0;
933 anfd->events = events;
934
935 if (o_events != events || o_reify & EV__IOFDSET)
936 backend_modify (EV_A_ fd, o_events, events); 1545 backend_modify (EV_A_ fd, o_events, anfd->events);
937 }
938 } 1546 }
939 1547
940 fdchangecnt = 0; 1548 fdchangecnt = 0;
941} 1549}
942 1550
… …
954 fdchanges [fdchangecnt - 1] = fd; 1562 fdchanges [fdchangecnt - 1] = fd;
955 } 1563 }
956} 1564}
957 1565
958/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1566/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
959inline_speed void 1567inline_speed void ecb_cold
960fd_kill (EV_P_ int fd) 1568fd_kill (EV_P_ int fd)
961{ 1569{
962 ev_io *w; 1570 ev_io *w;
963 1571
964 while ((w = (ev_io *)anfds [fd].head)) 1572 while ((w = (ev_io *)anfds [fd].head))
… …
966 ev_io_stop (EV_A_ w); 1574 ev_io_stop (EV_A_ w);
967 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1575 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
968 } 1576 }
969} 1577}
970 1578
971/* check whether the given fd is atcually valid, for error recovery */ 1579/* check whether the given fd is actually valid, for error recovery */
972inline_size int 1580inline_size int ecb_cold
973fd_valid (int fd) 1581fd_valid (int fd)
974{ 1582{
975#ifdef _WIN32 1583#ifdef _WIN32
976 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1584 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
977#else 1585#else
978 return fcntl (fd, F_GETFD) != -1; 1586 return fcntl (fd, F_GETFD) != -1;
979#endif 1587#endif
980} 1588}
981 1589
982/* called on EBADF to verify fds */ 1590/* called on EBADF to verify fds */
983static void noinline 1591static void noinline ecb_cold
984fd_ebadf (EV_P) 1592fd_ebadf (EV_P)
985{ 1593{
986 int fd; 1594 int fd;
987 1595
988 for (fd = 0; fd < anfdmax; ++fd) 1596 for (fd = 0; fd < anfdmax; ++fd)
… …
990 if (!fd_valid (fd) && errno == EBADF) 1598 if (!fd_valid (fd) && errno == EBADF)
991 fd_kill (EV_A_ fd); 1599 fd_kill (EV_A_ fd);
992} 1600}
993 1601
994/* called on ENOMEM in select/poll to kill some fds and retry */ 1602/* called on ENOMEM in select/poll to kill some fds and retry */
995static void noinline 1603static void noinline ecb_cold
996fd_enomem (EV_P) 1604fd_enomem (EV_P)
997{ 1605{
998 int fd; 1606 int fd;
999 1607
1000 for (fd = anfdmax; fd--; ) 1608 for (fd = anfdmax; fd--; )
… …
1018 anfds [fd].emask = 0; 1626 anfds [fd].emask = 0;
1019 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1627 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1020 } 1628 }
1021} 1629}
1022 1630
1631/* used to prepare libev internal fd's */
1632/* this is not fork-safe */
1633inline_speed void
1634fd_intern (int fd)
1635{
1636#ifdef _WIN32
1637 unsigned long arg = 1;
1638 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1639#else
1640 fcntl (fd, F_SETFD, FD_CLOEXEC);
1641 fcntl (fd, F_SETFL, O_NONBLOCK);
1642#endif
1643}
1644
1023/*****************************************************************************/ 1645/*****************************************************************************/
1024 1646
1025/* 1647/*
1026 * the heap functions want a real array index. array index 0 uis guaranteed to not 1648 * the heap functions want a real array index. array index 0 is guaranteed to not
1027 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1649 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1028 * the branching factor of the d-tree. 1650 * the branching factor of the d-tree.
1029 */ 1651 */
1030 1652
1031/* 1653/*
… …
1179 1801
1180static ANSIG signals [EV_NSIG - 1]; 1802static ANSIG signals [EV_NSIG - 1];
1181 1803
1182/*****************************************************************************/ 1804/*****************************************************************************/
1183 1805
1184/* used to prepare libev internal fd's */ 1806#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1185/* this is not fork-safe */
1186inline_speed void
1187fd_intern (int fd)
1188{
1189#ifdef _WIN32
1190 unsigned long arg = 1;
1191 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1192#else
1193 fcntl (fd, F_SETFD, FD_CLOEXEC);
1194 fcntl (fd, F_SETFL, O_NONBLOCK);
1195#endif
1196}
1197 1807
1198static void noinline 1808static void noinline ecb_cold
1199evpipe_init (EV_P) 1809evpipe_init (EV_P)
1200{ 1810{
1201 if (!ev_is_active (&pipe_w)) 1811 if (!ev_is_active (&pipe_w))
1202 { 1812 {
1203#if EV_USE_EVENTFD 1813# if EV_USE_EVENTFD
1204 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1814 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1205 if (evfd < 0 && errno == EINVAL) 1815 if (evfd < 0 && errno == EINVAL)
1206 evfd = eventfd (0, 0); 1816 evfd = eventfd (0, 0);
1207 1817
1208 if (evfd >= 0) 1818 if (evfd >= 0)
… …
1210 evpipe [0] = -1; 1820 evpipe [0] = -1;
1211 fd_intern (evfd); /* doing it twice doesn't hurt */ 1821 fd_intern (evfd); /* doing it twice doesn't hurt */
1212 ev_io_set (&pipe_w, evfd, EV_READ); 1822 ev_io_set (&pipe_w, evfd, EV_READ);
1213 } 1823 }
1214 else 1824 else
1215#endif 1825# endif
1216 { 1826 {
1217 while (pipe (evpipe)) 1827 while (pipe (evpipe))
1218 ev_syserr ("(libev) error creating signal/async pipe"); 1828 ev_syserr ("(libev) error creating signal/async pipe");
1219 1829
1220 fd_intern (evpipe [0]); 1830 fd_intern (evpipe [0]);
… …
1225 ev_io_start (EV_A_ &pipe_w); 1835 ev_io_start (EV_A_ &pipe_w);
1226 ev_unref (EV_A); /* watcher should not keep loop alive */ 1836 ev_unref (EV_A); /* watcher should not keep loop alive */
1227 } 1837 }
1228} 1838}
1229 1839
1230inline_size void 1840inline_speed void
1231evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1841evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1232{ 1842{
1233 if (!*flag) 1843 if (expect_true (*flag))
1844 return;
1845
1846 *flag = 1;
1847
1848 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1849
1850 pipe_write_skipped = 1;
1851
1852 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1853
1854 if (pipe_write_wanted)
1234 { 1855 {
1856 int old_errno;
1857
1858 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1859
1235 int old_errno = errno; /* save errno because write might clobber it */ 1860 old_errno = errno; /* save errno because write will clobber it */
1236
1237 *flag = 1;
1238 1861
1239#if EV_USE_EVENTFD 1862#if EV_USE_EVENTFD
1240 if (evfd >= 0) 1863 if (evfd >= 0)
1241 { 1864 {
1242 uint64_t counter = 1; 1865 uint64_t counter = 1;
1243 write (evfd, &counter, sizeof (uint64_t)); 1866 write (evfd, &counter, sizeof (uint64_t));
1244 } 1867 }
1245 else 1868 else
1246#endif 1869#endif
1870 {
1871 /* win32 people keep sending patches that change this write() to send() */
1872 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1873 /* so when you think this write should be a send instead, please find out */
1874 /* where your send() is from - it's definitely not the microsoft send, and */
1875 /* tell me. thank you. */
1876 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1877 /* check the ev documentation on how to use this flag */
1247 write (evpipe [1], &old_errno, 1); 1878 write (evpipe [1], &(evpipe [1]), 1);
1879 }
1248 1880
1249 errno = old_errno; 1881 errno = old_errno;
1250 } 1882 }
1251} 1883}
1252 1884
… …
1255static void 1887static void
1256pipecb (EV_P_ ev_io *iow, int revents) 1888pipecb (EV_P_ ev_io *iow, int revents)
1257{ 1889{
1258 int i; 1890 int i;
1259 1891
1892 if (revents & EV_READ)
1893 {
1260#if EV_USE_EVENTFD 1894#if EV_USE_EVENTFD
1261 if (evfd >= 0) 1895 if (evfd >= 0)
1262 { 1896 {
1263 uint64_t counter; 1897 uint64_t counter;
1264 read (evfd, &counter, sizeof (uint64_t)); 1898 read (evfd, &counter, sizeof (uint64_t));
1265 } 1899 }
1266 else 1900 else
1267#endif 1901#endif
1268 { 1902 {
1269 char dummy; 1903 char dummy;
1904 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1270 read (evpipe [0], &dummy, 1); 1905 read (evpipe [0], &dummy, 1);
1906 }
1271 } 1907 }
1272 1908
1909 pipe_write_skipped = 0;
1910
1911#if EV_SIGNAL_ENABLE
1273 if (sig_pending) 1912 if (sig_pending)
1274 { 1913 {
1275 sig_pending = 0; 1914 sig_pending = 0;
1276 1915
1277 for (i = EV_NSIG - 1; i--; ) 1916 for (i = EV_NSIG - 1; i--; )
1278 if (expect_false (signals [i].pending)) 1917 if (expect_false (signals [i].pending))
1279 ev_feed_signal_event (EV_A_ i + 1); 1918 ev_feed_signal_event (EV_A_ i + 1);
1280 } 1919 }
1920#endif
1281 1921
1282#if EV_ASYNC_ENABLE 1922#if EV_ASYNC_ENABLE
1283 if (async_pending) 1923 if (async_pending)
1284 { 1924 {
1285 async_pending = 0; 1925 async_pending = 0;
… …
1294#endif 1934#endif
1295} 1935}
1296 1936
1297/*****************************************************************************/ 1937/*****************************************************************************/
1298 1938
1939void
1940ev_feed_signal (int signum)
1941{
1942#if EV_MULTIPLICITY
1943 EV_P = signals [signum - 1].loop;
1944
1945 if (!EV_A)
1946 return;
1947#endif
1948
1949 if (!ev_active (&pipe_w))
1950 return;
1951
1952 signals [signum - 1].pending = 1;
1953 evpipe_write (EV_A_ &sig_pending);
1954}
1955
1299static void 1956static void
1300ev_sighandler (int signum) 1957ev_sighandler (int signum)
1301{ 1958{
1302#if EV_MULTIPLICITY
1303 EV_P = signals [signum - 1].loop;
1304#endif
1305
1306#ifdef _WIN32 1959#ifdef _WIN32
1307 signal (signum, ev_sighandler); 1960 signal (signum, ev_sighandler);
1308#endif 1961#endif
1309 1962
1310 signals [signum - 1].pending = 1; 1963 ev_feed_signal (signum);
1311 evpipe_write (EV_A_ &sig_pending);
1312} 1964}
1313 1965
1314void noinline 1966void noinline
1315ev_feed_signal_event (EV_P_ int signum) 1967ev_feed_signal_event (EV_P_ int signum)
1316{ 1968{
… …
1353 break; 2005 break;
1354 } 2006 }
1355} 2007}
1356#endif 2008#endif
1357 2009
2010#endif
2011
1358/*****************************************************************************/ 2012/*****************************************************************************/
1359 2013
2014#if EV_CHILD_ENABLE
1360static WL childs [EV_PID_HASHSIZE]; 2015static WL childs [EV_PID_HASHSIZE];
1361
1362#ifndef _WIN32
1363 2016
1364static ev_signal childev; 2017static ev_signal childev;
1365 2018
1366#ifndef WIFCONTINUED 2019#ifndef WIFCONTINUED
1367# define WIFCONTINUED(status) 0 2020# define WIFCONTINUED(status) 0
… …
1372child_reap (EV_P_ int chain, int pid, int status) 2025child_reap (EV_P_ int chain, int pid, int status)
1373{ 2026{
1374 ev_child *w; 2027 ev_child *w;
1375 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2028 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1376 2029
1377 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2030 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1378 { 2031 {
1379 if ((w->pid == pid || !w->pid) 2032 if ((w->pid == pid || !w->pid)
1380 && (!traced || (w->flags & 1))) 2033 && (!traced || (w->flags & 1)))
1381 { 2034 {
1382 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2035 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1407 /* make sure we are called again until all children have been reaped */ 2060 /* make sure we are called again until all children have been reaped */
1408 /* we need to do it this way so that the callback gets called before we continue */ 2061 /* we need to do it this way so that the callback gets called before we continue */
1409 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2062 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1410 2063
1411 child_reap (EV_A_ pid, pid, status); 2064 child_reap (EV_A_ pid, pid, status);
1412 if (EV_PID_HASHSIZE > 1) 2065 if ((EV_PID_HASHSIZE) > 1)
1413 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2066 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1414} 2067}
1415 2068
1416#endif 2069#endif
1417 2070
1418/*****************************************************************************/ 2071/*****************************************************************************/
1419 2072
2073#if EV_USE_IOCP
2074# include "ev_iocp.c"
2075#endif
1420#if EV_USE_PORT 2076#if EV_USE_PORT
1421# include "ev_port.c" 2077# include "ev_port.c"
1422#endif 2078#endif
1423#if EV_USE_KQUEUE 2079#if EV_USE_KQUEUE
1424# include "ev_kqueue.c" 2080# include "ev_kqueue.c"
… …
1431#endif 2087#endif
1432#if EV_USE_SELECT 2088#if EV_USE_SELECT
1433# include "ev_select.c" 2089# include "ev_select.c"
1434#endif 2090#endif
1435 2091
1436int 2092int ecb_cold
1437ev_version_major (void) 2093ev_version_major (void)
1438{ 2094{
1439 return EV_VERSION_MAJOR; 2095 return EV_VERSION_MAJOR;
1440} 2096}
1441 2097
1442int 2098int ecb_cold
1443ev_version_minor (void) 2099ev_version_minor (void)
1444{ 2100{
1445 return EV_VERSION_MINOR; 2101 return EV_VERSION_MINOR;
1446} 2102}
1447 2103
1448/* return true if we are running with elevated privileges and should ignore env variables */ 2104/* return true if we are running with elevated privileges and should ignore env variables */
1449int inline_size 2105int inline_size ecb_cold
1450enable_secure (void) 2106enable_secure (void)
1451{ 2107{
1452#ifdef _WIN32 2108#ifdef _WIN32
1453 return 0; 2109 return 0;
1454#else 2110#else
1455 return getuid () != geteuid () 2111 return getuid () != geteuid ()
1456 || getgid () != getegid (); 2112 || getgid () != getegid ();
1457#endif 2113#endif
1458} 2114}
1459 2115
1460unsigned int 2116unsigned int ecb_cold
1461ev_supported_backends (void) 2117ev_supported_backends (void)
1462{ 2118{
1463 unsigned int flags = 0; 2119 unsigned int flags = 0;
1464 2120
1465 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2121 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1469 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2125 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1470 2126
1471 return flags; 2127 return flags;
1472} 2128}
1473 2129
1474unsigned int 2130unsigned int ecb_cold
1475ev_recommended_backends (void) 2131ev_recommended_backends (void)
1476{ 2132{
1477 unsigned int flags = ev_supported_backends (); 2133 unsigned int flags = ev_supported_backends ();
1478 2134
1479#ifndef __NetBSD__ 2135#ifndef __NetBSD__
… …
1484#ifdef __APPLE__ 2140#ifdef __APPLE__
1485 /* only select works correctly on that "unix-certified" platform */ 2141 /* only select works correctly on that "unix-certified" platform */
1486 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2142 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1487 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2143 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1488#endif 2144#endif
2145#ifdef __FreeBSD__
2146 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2147#endif
1489 2148
1490 return flags; 2149 return flags;
1491} 2150}
1492 2151
1493unsigned int 2152unsigned int ecb_cold
1494ev_embeddable_backends (void) 2153ev_embeddable_backends (void)
1495{ 2154{
1496 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2155 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1497 2156
1498 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2157 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1499 /* please fix it and tell me how to detect the fix */ 2158 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1500 flags &= ~EVBACKEND_EPOLL; 2159 flags &= ~EVBACKEND_EPOLL;
1501 2160
1502 return flags; 2161 return flags;
1503} 2162}
1504 2163
1505unsigned int 2164unsigned int
1506ev_backend (EV_P) 2165ev_backend (EV_P)
1507{ 2166{
1508 return backend; 2167 return backend;
1509} 2168}
1510 2169
1511#if EV_MINIMAL < 2 2170#if EV_FEATURE_API
1512unsigned int 2171unsigned int
1513ev_loop_count (EV_P) 2172ev_iteration (EV_P)
1514{ 2173{
1515 return loop_count; 2174 return loop_count;
1516} 2175}
1517 2176
1518unsigned int 2177unsigned int
1519ev_loop_depth (EV_P) 2178ev_depth (EV_P)
1520{ 2179{
1521 return loop_depth; 2180 return loop_depth;
1522} 2181}
1523 2182
1524void 2183void
… …
1543ev_userdata (EV_P) 2202ev_userdata (EV_P)
1544{ 2203{
1545 return userdata; 2204 return userdata;
1546} 2205}
1547 2206
2207void
1548void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2208ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1549{ 2209{
1550 invoke_cb = invoke_pending_cb; 2210 invoke_cb = invoke_pending_cb;
1551} 2211}
1552 2212
2213void
1553void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2214ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1554{ 2215{
1555 release_cb = release; 2216 release_cb = release;
1556 acquire_cb = acquire; 2217 acquire_cb = acquire;
1557} 2218}
1558#endif 2219#endif
1559 2220
1560/* initialise a loop structure, must be zero-initialised */ 2221/* initialise a loop structure, must be zero-initialised */
1561static void noinline 2222static void noinline ecb_cold
1562loop_init (EV_P_ unsigned int flags) 2223loop_init (EV_P_ unsigned int flags)
1563{ 2224{
1564 if (!backend) 2225 if (!backend)
1565 { 2226 {
2227 origflags = flags;
2228
1566#if EV_USE_REALTIME 2229#if EV_USE_REALTIME
1567 if (!have_realtime) 2230 if (!have_realtime)
1568 { 2231 {
1569 struct timespec ts; 2232 struct timespec ts;
1570 2233
… …
1592 if (!(flags & EVFLAG_NOENV) 2255 if (!(flags & EVFLAG_NOENV)
1593 && !enable_secure () 2256 && !enable_secure ()
1594 && getenv ("LIBEV_FLAGS")) 2257 && getenv ("LIBEV_FLAGS"))
1595 flags = atoi (getenv ("LIBEV_FLAGS")); 2258 flags = atoi (getenv ("LIBEV_FLAGS"));
1596 2259
1597 ev_rt_now = ev_time (); 2260 ev_rt_now = ev_time ();
1598 mn_now = get_clock (); 2261 mn_now = get_clock ();
1599 now_floor = mn_now; 2262 now_floor = mn_now;
1600 rtmn_diff = ev_rt_now - mn_now; 2263 rtmn_diff = ev_rt_now - mn_now;
1601#if EV_MINIMAL < 2 2264#if EV_FEATURE_API
1602 invoke_cb = ev_invoke_pending; 2265 invoke_cb = ev_invoke_pending;
1603#endif 2266#endif
1604 2267
1605 io_blocktime = 0.; 2268 io_blocktime = 0.;
1606 timeout_blocktime = 0.; 2269 timeout_blocktime = 0.;
1607 backend = 0; 2270 backend = 0;
1608 backend_fd = -1; 2271 backend_fd = -1;
1609 sig_pending = 0; 2272 sig_pending = 0;
1610#if EV_ASYNC_ENABLE 2273#if EV_ASYNC_ENABLE
1611 async_pending = 0; 2274 async_pending = 0;
1612#endif 2275#endif
2276 pipe_write_skipped = 0;
2277 pipe_write_wanted = 0;
1613#if EV_USE_INOTIFY 2278#if EV_USE_INOTIFY
1614 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2279 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1615#endif 2280#endif
1616#if EV_USE_SIGNALFD 2281#if EV_USE_SIGNALFD
1617 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2282 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1618#endif 2283#endif
1619 2284
1620 if (!(flags & 0x0000ffffU)) 2285 if (!(flags & EVBACKEND_MASK))
1621 flags |= ev_recommended_backends (); 2286 flags |= ev_recommended_backends ();
1622 2287
2288#if EV_USE_IOCP
2289 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2290#endif
1623#if EV_USE_PORT 2291#if EV_USE_PORT
1624 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2292 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1625#endif 2293#endif
1626#if EV_USE_KQUEUE 2294#if EV_USE_KQUEUE
1627 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2295 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1636 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2304 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1637#endif 2305#endif
1638 2306
1639 ev_prepare_init (&pending_w, pendingcb); 2307 ev_prepare_init (&pending_w, pendingcb);
1640 2308
2309#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1641 ev_init (&pipe_w, pipecb); 2310 ev_init (&pipe_w, pipecb);
1642 ev_set_priority (&pipe_w, EV_MAXPRI); 2311 ev_set_priority (&pipe_w, EV_MAXPRI);
2312#endif
1643 } 2313 }
1644} 2314}
1645 2315
1646/* free up a loop structure */ 2316/* free up a loop structure */
1647static void noinline 2317void ecb_cold
1648loop_destroy (EV_P) 2318ev_loop_destroy (EV_P)
1649{ 2319{
1650 int i; 2320 int i;
2321
2322#if EV_MULTIPLICITY
2323 /* mimic free (0) */
2324 if (!EV_A)
2325 return;
2326#endif
2327
2328#if EV_CLEANUP_ENABLE
2329 /* queue cleanup watchers (and execute them) */
2330 if (expect_false (cleanupcnt))
2331 {
2332 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2333 EV_INVOKE_PENDING;
2334 }
2335#endif
2336
2337#if EV_CHILD_ENABLE
2338 if (ev_is_active (&childev))
2339 {
2340 ev_ref (EV_A); /* child watcher */
2341 ev_signal_stop (EV_A_ &childev);
2342 }
2343#endif
1651 2344
1652 if (ev_is_active (&pipe_w)) 2345 if (ev_is_active (&pipe_w))
1653 { 2346 {
1654 /*ev_ref (EV_A);*/ 2347 /*ev_ref (EV_A);*/
1655 /*ev_io_stop (EV_A_ &pipe_w);*/ 2348 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1677#endif 2370#endif
1678 2371
1679 if (backend_fd >= 0) 2372 if (backend_fd >= 0)
1680 close (backend_fd); 2373 close (backend_fd);
1681 2374
2375#if EV_USE_IOCP
2376 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2377#endif
1682#if EV_USE_PORT 2378#if EV_USE_PORT
1683 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2379 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1684#endif 2380#endif
1685#if EV_USE_KQUEUE 2381#if EV_USE_KQUEUE
1686 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2382 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1713 array_free (periodic, EMPTY); 2409 array_free (periodic, EMPTY);
1714#endif 2410#endif
1715#if EV_FORK_ENABLE 2411#if EV_FORK_ENABLE
1716 array_free (fork, EMPTY); 2412 array_free (fork, EMPTY);
1717#endif 2413#endif
2414#if EV_CLEANUP_ENABLE
2415 array_free (cleanup, EMPTY);
2416#endif
1718 array_free (prepare, EMPTY); 2417 array_free (prepare, EMPTY);
1719 array_free (check, EMPTY); 2418 array_free (check, EMPTY);
1720#if EV_ASYNC_ENABLE 2419#if EV_ASYNC_ENABLE
1721 array_free (async, EMPTY); 2420 array_free (async, EMPTY);
1722#endif 2421#endif
1723 2422
1724 backend = 0; 2423 backend = 0;
2424
2425#if EV_MULTIPLICITY
2426 if (ev_is_default_loop (EV_A))
2427#endif
2428 ev_default_loop_ptr = 0;
2429#if EV_MULTIPLICITY
2430 else
2431 ev_free (EV_A);
2432#endif
1725} 2433}
1726 2434
1727#if EV_USE_INOTIFY 2435#if EV_USE_INOTIFY
1728inline_size void infy_fork (EV_P); 2436inline_size void infy_fork (EV_P);
1729#endif 2437#endif
… …
1744 infy_fork (EV_A); 2452 infy_fork (EV_A);
1745#endif 2453#endif
1746 2454
1747 if (ev_is_active (&pipe_w)) 2455 if (ev_is_active (&pipe_w))
1748 { 2456 {
1749 /* this "locks" the handlers against writing to the pipe */ 2457 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1750 /* while we modify the fd vars */
1751 sig_pending = 1;
1752#if EV_ASYNC_ENABLE
1753 async_pending = 1;
1754#endif
1755 2458
1756 ev_ref (EV_A); 2459 ev_ref (EV_A);
1757 ev_io_stop (EV_A_ &pipe_w); 2460 ev_io_stop (EV_A_ &pipe_w);
1758 2461
1759#if EV_USE_EVENTFD 2462#if EV_USE_EVENTFD
… …
1765 { 2468 {
1766 EV_WIN32_CLOSE_FD (evpipe [0]); 2469 EV_WIN32_CLOSE_FD (evpipe [0]);
1767 EV_WIN32_CLOSE_FD (evpipe [1]); 2470 EV_WIN32_CLOSE_FD (evpipe [1]);
1768 } 2471 }
1769 2472
2473#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1770 evpipe_init (EV_A); 2474 evpipe_init (EV_A);
1771 /* now iterate over everything, in case we missed something */ 2475 /* now iterate over everything, in case we missed something */
1772 pipecb (EV_A_ &pipe_w, EV_READ); 2476 pipecb (EV_A_ &pipe_w, EV_READ);
2477#endif
1773 } 2478 }
1774 2479
1775 postfork = 0; 2480 postfork = 0;
1776} 2481}
1777 2482
1778#if EV_MULTIPLICITY 2483#if EV_MULTIPLICITY
1779 2484
1780struct ev_loop * 2485struct ev_loop * ecb_cold
1781ev_loop_new (unsigned int flags) 2486ev_loop_new (unsigned int flags)
1782{ 2487{
1783 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2488 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1784 2489
1785 memset (EV_A, 0, sizeof (struct ev_loop)); 2490 memset (EV_A, 0, sizeof (struct ev_loop));
1786 loop_init (EV_A_ flags); 2491 loop_init (EV_A_ flags);
1787 2492
1788 if (ev_backend (EV_A)) 2493 if (ev_backend (EV_A))
1789 return EV_A; 2494 return EV_A;
1790 2495
2496 ev_free (EV_A);
1791 return 0; 2497 return 0;
1792} 2498}
1793 2499
1794void
1795ev_loop_destroy (EV_P)
1796{
1797 loop_destroy (EV_A);
1798 ev_free (loop);
1799}
1800
1801void
1802ev_loop_fork (EV_P)
1803{
1804 postfork = 1; /* must be in line with ev_default_fork */
1805}
1806#endif /* multiplicity */ 2500#endif /* multiplicity */
1807 2501
1808#if EV_VERIFY 2502#if EV_VERIFY
1809static void noinline 2503static void noinline ecb_cold
1810verify_watcher (EV_P_ W w) 2504verify_watcher (EV_P_ W w)
1811{ 2505{
1812 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2506 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1813 2507
1814 if (w->pending) 2508 if (w->pending)
1815 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2509 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1816} 2510}
1817 2511
1818static void noinline 2512static void noinline ecb_cold
1819verify_heap (EV_P_ ANHE *heap, int N) 2513verify_heap (EV_P_ ANHE *heap, int N)
1820{ 2514{
1821 int i; 2515 int i;
1822 2516
1823 for (i = HEAP0; i < N + HEAP0; ++i) 2517 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1828 2522
1829 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2523 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1830 } 2524 }
1831} 2525}
1832 2526
1833static void noinline 2527static void noinline ecb_cold
1834array_verify (EV_P_ W *ws, int cnt) 2528array_verify (EV_P_ W *ws, int cnt)
1835{ 2529{
1836 while (cnt--) 2530 while (cnt--)
1837 { 2531 {
1838 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2532 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1839 verify_watcher (EV_A_ ws [cnt]); 2533 verify_watcher (EV_A_ ws [cnt]);
1840 } 2534 }
1841} 2535}
1842#endif 2536#endif
1843 2537
1844#if EV_MINIMAL < 2 2538#if EV_FEATURE_API
1845void 2539void ecb_cold
1846ev_loop_verify (EV_P) 2540ev_verify (EV_P)
1847{ 2541{
1848#if EV_VERIFY 2542#if EV_VERIFY
1849 int i; 2543 int i;
1850 WL w; 2544 WL w;
1851 2545
… …
1885#if EV_FORK_ENABLE 2579#if EV_FORK_ENABLE
1886 assert (forkmax >= forkcnt); 2580 assert (forkmax >= forkcnt);
1887 array_verify (EV_A_ (W *)forks, forkcnt); 2581 array_verify (EV_A_ (W *)forks, forkcnt);
1888#endif 2582#endif
1889 2583
2584#if EV_CLEANUP_ENABLE
2585 assert (cleanupmax >= cleanupcnt);
2586 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2587#endif
2588
1890#if EV_ASYNC_ENABLE 2589#if EV_ASYNC_ENABLE
1891 assert (asyncmax >= asynccnt); 2590 assert (asyncmax >= asynccnt);
1892 array_verify (EV_A_ (W *)asyncs, asynccnt); 2591 array_verify (EV_A_ (W *)asyncs, asynccnt);
1893#endif 2592#endif
1894 2593
2594#if EV_PREPARE_ENABLE
1895 assert (preparemax >= preparecnt); 2595 assert (preparemax >= preparecnt);
1896 array_verify (EV_A_ (W *)prepares, preparecnt); 2596 array_verify (EV_A_ (W *)prepares, preparecnt);
2597#endif
1897 2598
2599#if EV_CHECK_ENABLE
1898 assert (checkmax >= checkcnt); 2600 assert (checkmax >= checkcnt);
1899 array_verify (EV_A_ (W *)checks, checkcnt); 2601 array_verify (EV_A_ (W *)checks, checkcnt);
2602#endif
1900 2603
1901# if 0 2604# if 0
2605#if EV_CHILD_ENABLE
1902 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2606 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1903 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2607 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2608#endif
1904# endif 2609# endif
1905#endif 2610#endif
1906} 2611}
1907#endif 2612#endif
1908 2613
1909#if EV_MULTIPLICITY 2614#if EV_MULTIPLICITY
1910struct ev_loop * 2615struct ev_loop * ecb_cold
1911ev_default_loop_init (unsigned int flags)
1912#else 2616#else
1913int 2617int
2618#endif
1914ev_default_loop (unsigned int flags) 2619ev_default_loop (unsigned int flags)
1915#endif
1916{ 2620{
1917 if (!ev_default_loop_ptr) 2621 if (!ev_default_loop_ptr)
1918 { 2622 {
1919#if EV_MULTIPLICITY 2623#if EV_MULTIPLICITY
1920 EV_P = ev_default_loop_ptr = &default_loop_struct; 2624 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1924 2628
1925 loop_init (EV_A_ flags); 2629 loop_init (EV_A_ flags);
1926 2630
1927 if (ev_backend (EV_A)) 2631 if (ev_backend (EV_A))
1928 { 2632 {
1929#ifndef _WIN32 2633#if EV_CHILD_ENABLE
1930 ev_signal_init (&childev, childcb, SIGCHLD); 2634 ev_signal_init (&childev, childcb, SIGCHLD);
1931 ev_set_priority (&childev, EV_MAXPRI); 2635 ev_set_priority (&childev, EV_MAXPRI);
1932 ev_signal_start (EV_A_ &childev); 2636 ev_signal_start (EV_A_ &childev);
1933 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2637 ev_unref (EV_A); /* child watcher should not keep loop alive */
1934#endif 2638#endif
… …
1939 2643
1940 return ev_default_loop_ptr; 2644 return ev_default_loop_ptr;
1941} 2645}
1942 2646
1943void 2647void
1944ev_default_destroy (void) 2648ev_loop_fork (EV_P)
1945{ 2649{
1946#if EV_MULTIPLICITY
1947 EV_P = ev_default_loop_ptr;
1948#endif
1949
1950 ev_default_loop_ptr = 0;
1951
1952#ifndef _WIN32
1953 ev_ref (EV_A); /* child watcher */
1954 ev_signal_stop (EV_A_ &childev);
1955#endif
1956
1957 loop_destroy (EV_A);
1958}
1959
1960void
1961ev_default_fork (void)
1962{
1963#if EV_MULTIPLICITY
1964 EV_P = ev_default_loop_ptr;
1965#endif
1966
1967 postfork = 1; /* must be in line with ev_loop_fork */ 2650 postfork = 1; /* must be in line with ev_default_fork */
1968} 2651}
1969 2652
1970/*****************************************************************************/ 2653/*****************************************************************************/
1971 2654
1972void 2655void
… …
1994 2677
1995 for (pri = NUMPRI; pri--; ) 2678 for (pri = NUMPRI; pri--; )
1996 while (pendingcnt [pri]) 2679 while (pendingcnt [pri])
1997 { 2680 {
1998 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2681 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1999
2000 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2001 /* ^ this is no longer true, as pending_w could be here */
2002 2682
2003 p->w->pending = 0; 2683 p->w->pending = 0;
2004 EV_CB_INVOKE (p->w, p->events); 2684 EV_CB_INVOKE (p->w, p->events);
2005 EV_FREQUENT_CHECK; 2685 EV_FREQUENT_CHECK;
2006 } 2686 }
… …
2063 EV_FREQUENT_CHECK; 2743 EV_FREQUENT_CHECK;
2064 feed_reverse (EV_A_ (W)w); 2744 feed_reverse (EV_A_ (W)w);
2065 } 2745 }
2066 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2746 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2067 2747
2068 feed_reverse_done (EV_A_ EV_TIMEOUT); 2748 feed_reverse_done (EV_A_ EV_TIMER);
2069 } 2749 }
2070} 2750}
2071 2751
2072#if EV_PERIODIC_ENABLE 2752#if EV_PERIODIC_ENABLE
2753
2754static void noinline
2755periodic_recalc (EV_P_ ev_periodic *w)
2756{
2757 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2758 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2759
2760 /* the above almost always errs on the low side */
2761 while (at <= ev_rt_now)
2762 {
2763 ev_tstamp nat = at + w->interval;
2764
2765 /* when resolution fails us, we use ev_rt_now */
2766 if (expect_false (nat == at))
2767 {
2768 at = ev_rt_now;
2769 break;
2770 }
2771
2772 at = nat;
2773 }
2774
2775 ev_at (w) = at;
2776}
2777
2073/* make periodics pending */ 2778/* make periodics pending */
2074inline_size void 2779inline_size void
2075periodics_reify (EV_P) 2780periodics_reify (EV_P)
2076{ 2781{
2077 EV_FREQUENT_CHECK; 2782 EV_FREQUENT_CHECK;
… …
2096 ANHE_at_cache (periodics [HEAP0]); 2801 ANHE_at_cache (periodics [HEAP0]);
2097 downheap (periodics, periodiccnt, HEAP0); 2802 downheap (periodics, periodiccnt, HEAP0);
2098 } 2803 }
2099 else if (w->interval) 2804 else if (w->interval)
2100 { 2805 {
2101 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2806 periodic_recalc (EV_A_ w);
2102 /* if next trigger time is not sufficiently in the future, put it there */
2103 /* this might happen because of floating point inexactness */
2104 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2105 {
2106 ev_at (w) += w->interval;
2107
2108 /* if interval is unreasonably low we might still have a time in the past */
2109 /* so correct this. this will make the periodic very inexact, but the user */
2110 /* has effectively asked to get triggered more often than possible */
2111 if (ev_at (w) < ev_rt_now)
2112 ev_at (w) = ev_rt_now;
2113 }
2114
2115 ANHE_at_cache (periodics [HEAP0]); 2807 ANHE_at_cache (periodics [HEAP0]);
2116 downheap (periodics, periodiccnt, HEAP0); 2808 downheap (periodics, periodiccnt, HEAP0);
2117 } 2809 }
2118 else 2810 else
2119 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2811 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2126 feed_reverse_done (EV_A_ EV_PERIODIC); 2818 feed_reverse_done (EV_A_ EV_PERIODIC);
2127 } 2819 }
2128} 2820}
2129 2821
2130/* simply recalculate all periodics */ 2822/* simply recalculate all periodics */
2131/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2823/* TODO: maybe ensure that at least one event happens when jumping forward? */
2132static void noinline 2824static void noinline ecb_cold
2133periodics_reschedule (EV_P) 2825periodics_reschedule (EV_P)
2134{ 2826{
2135 int i; 2827 int i;
2136 2828
2137 /* adjust periodics after time jump */ 2829 /* adjust periodics after time jump */
… …
2140 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2832 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2141 2833
2142 if (w->reschedule_cb) 2834 if (w->reschedule_cb)
2143 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2835 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2144 else if (w->interval) 2836 else if (w->interval)
2145 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2837 periodic_recalc (EV_A_ w);
2146 2838
2147 ANHE_at_cache (periodics [i]); 2839 ANHE_at_cache (periodics [i]);
2148 } 2840 }
2149 2841
2150 reheap (periodics, periodiccnt); 2842 reheap (periodics, periodiccnt);
2151} 2843}
2152#endif 2844#endif
2153 2845
2154/* adjust all timers by a given offset */ 2846/* adjust all timers by a given offset */
2155static void noinline 2847static void noinline ecb_cold
2156timers_reschedule (EV_P_ ev_tstamp adjust) 2848timers_reschedule (EV_P_ ev_tstamp adjust)
2157{ 2849{
2158 int i; 2850 int i;
2159 2851
2160 for (i = 0; i < timercnt; ++i) 2852 for (i = 0; i < timercnt; ++i)
… …
2197 * doesn't hurt either as we only do this on time-jumps or 2889 * doesn't hurt either as we only do this on time-jumps or
2198 * in the unlikely event of having been preempted here. 2890 * in the unlikely event of having been preempted here.
2199 */ 2891 */
2200 for (i = 4; --i; ) 2892 for (i = 4; --i; )
2201 { 2893 {
2894 ev_tstamp diff;
2202 rtmn_diff = ev_rt_now - mn_now; 2895 rtmn_diff = ev_rt_now - mn_now;
2203 2896
2897 diff = odiff - rtmn_diff;
2898
2204 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2899 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2205 return; /* all is well */ 2900 return; /* all is well */
2206 2901
2207 ev_rt_now = ev_time (); 2902 ev_rt_now = ev_time ();
2208 mn_now = get_clock (); 2903 mn_now = get_clock ();
2209 now_floor = mn_now; 2904 now_floor = mn_now;
… …
2232 mn_now = ev_rt_now; 2927 mn_now = ev_rt_now;
2233 } 2928 }
2234} 2929}
2235 2930
2236void 2931void
2237ev_loop (EV_P_ int flags) 2932ev_run (EV_P_ int flags)
2238{ 2933{
2239#if EV_MINIMAL < 2 2934#if EV_FEATURE_API
2240 ++loop_depth; 2935 ++loop_depth;
2241#endif 2936#endif
2242 2937
2243 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2938 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2244 2939
2245 loop_done = EVUNLOOP_CANCEL; 2940 loop_done = EVBREAK_CANCEL;
2246 2941
2247 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2942 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2248 2943
2249 do 2944 do
2250 { 2945 {
2251#if EV_VERIFY >= 2 2946#if EV_VERIFY >= 2
2252 ev_loop_verify (EV_A); 2947 ev_verify (EV_A);
2253#endif 2948#endif
2254 2949
2255#ifndef _WIN32 2950#ifndef _WIN32
2256 if (expect_false (curpid)) /* penalise the forking check even more */ 2951 if (expect_false (curpid)) /* penalise the forking check even more */
2257 if (expect_false (getpid () != curpid)) 2952 if (expect_false (getpid () != curpid))
… …
2269 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2964 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2270 EV_INVOKE_PENDING; 2965 EV_INVOKE_PENDING;
2271 } 2966 }
2272#endif 2967#endif
2273 2968
2969#if EV_PREPARE_ENABLE
2274 /* queue prepare watchers (and execute them) */ 2970 /* queue prepare watchers (and execute them) */
2275 if (expect_false (preparecnt)) 2971 if (expect_false (preparecnt))
2276 { 2972 {
2277 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2973 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2278 EV_INVOKE_PENDING; 2974 EV_INVOKE_PENDING;
2279 } 2975 }
2976#endif
2280 2977
2281 if (expect_false (loop_done)) 2978 if (expect_false (loop_done))
2282 break; 2979 break;
2283 2980
2284 /* we might have forked, so reify kernel state if necessary */ 2981 /* we might have forked, so reify kernel state if necessary */
… …
2291 /* calculate blocking time */ 2988 /* calculate blocking time */
2292 { 2989 {
2293 ev_tstamp waittime = 0.; 2990 ev_tstamp waittime = 0.;
2294 ev_tstamp sleeptime = 0.; 2991 ev_tstamp sleeptime = 0.;
2295 2992
2993 /* remember old timestamp for io_blocktime calculation */
2994 ev_tstamp prev_mn_now = mn_now;
2995
2996 /* update time to cancel out callback processing overhead */
2997 time_update (EV_A_ 1e100);
2998
2999 /* from now on, we want a pipe-wake-up */
3000 pipe_write_wanted = 1;
3001
3002 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3003
2296 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3004 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2297 { 3005 {
2298 /* remember old timestamp for io_blocktime calculation */
2299 ev_tstamp prev_mn_now = mn_now;
2300
2301 /* update time to cancel out callback processing overhead */
2302 time_update (EV_A_ 1e100);
2303
2304 waittime = MAX_BLOCKTIME; 3006 waittime = MAX_BLOCKTIME;
2305 3007
2306 if (timercnt) 3008 if (timercnt)
2307 { 3009 {
2308 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3010 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2309 if (waittime > to) waittime = to; 3011 if (waittime > to) waittime = to;
2310 } 3012 }
2311 3013
2312#if EV_PERIODIC_ENABLE 3014#if EV_PERIODIC_ENABLE
2313 if (periodiccnt) 3015 if (periodiccnt)
2314 { 3016 {
2315 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3017 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2316 if (waittime > to) waittime = to; 3018 if (waittime > to) waittime = to;
2317 } 3019 }
2318#endif 3020#endif
2319 3021
2320 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3022 /* don't let timeouts decrease the waittime below timeout_blocktime */
2321 if (expect_false (waittime < timeout_blocktime)) 3023 if (expect_false (waittime < timeout_blocktime))
2322 waittime = timeout_blocktime; 3024 waittime = timeout_blocktime;
3025
3026 /* at this point, we NEED to wait, so we have to ensure */
3027 /* to pass a minimum nonzero value to the backend */
3028 if (expect_false (waittime < backend_mintime))
3029 waittime = backend_mintime;
2323 3030
2324 /* extra check because io_blocktime is commonly 0 */ 3031 /* extra check because io_blocktime is commonly 0 */
2325 if (expect_false (io_blocktime)) 3032 if (expect_false (io_blocktime))
2326 { 3033 {
2327 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3034 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2328 3035
2329 if (sleeptime > waittime - backend_fudge) 3036 if (sleeptime > waittime - backend_mintime)
2330 sleeptime = waittime - backend_fudge; 3037 sleeptime = waittime - backend_mintime;
2331 3038
2332 if (expect_true (sleeptime > 0.)) 3039 if (expect_true (sleeptime > 0.))
2333 { 3040 {
2334 ev_sleep (sleeptime); 3041 ev_sleep (sleeptime);
2335 waittime -= sleeptime; 3042 waittime -= sleeptime;
2336 } 3043 }
2337 } 3044 }
2338 } 3045 }
2339 3046
2340#if EV_MINIMAL < 2 3047#if EV_FEATURE_API
2341 ++loop_count; 3048 ++loop_count;
2342#endif 3049#endif
2343 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3050 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2344 backend_poll (EV_A_ waittime); 3051 backend_poll (EV_A_ waittime);
2345 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3052 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3053
3054 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3055
3056 if (pipe_write_skipped)
3057 {
3058 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3059 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3060 }
3061
2346 3062
2347 /* update ev_rt_now, do magic */ 3063 /* update ev_rt_now, do magic */
2348 time_update (EV_A_ waittime + sleeptime); 3064 time_update (EV_A_ waittime + sleeptime);
2349 } 3065 }
2350 3066
… …
2357#if EV_IDLE_ENABLE 3073#if EV_IDLE_ENABLE
2358 /* queue idle watchers unless other events are pending */ 3074 /* queue idle watchers unless other events are pending */
2359 idle_reify (EV_A); 3075 idle_reify (EV_A);
2360#endif 3076#endif
2361 3077
3078#if EV_CHECK_ENABLE
2362 /* queue check watchers, to be executed first */ 3079 /* queue check watchers, to be executed first */
2363 if (expect_false (checkcnt)) 3080 if (expect_false (checkcnt))
2364 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3081 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3082#endif
2365 3083
2366 EV_INVOKE_PENDING; 3084 EV_INVOKE_PENDING;
2367 } 3085 }
2368 while (expect_true ( 3086 while (expect_true (
2369 activecnt 3087 activecnt
2370 && !loop_done 3088 && !loop_done
2371 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3089 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2372 )); 3090 ));
2373 3091
2374 if (loop_done == EVUNLOOP_ONE) 3092 if (loop_done == EVBREAK_ONE)
2375 loop_done = EVUNLOOP_CANCEL; 3093 loop_done = EVBREAK_CANCEL;
2376 3094
2377#if EV_MINIMAL < 2 3095#if EV_FEATURE_API
2378 --loop_depth; 3096 --loop_depth;
2379#endif 3097#endif
2380} 3098}
2381 3099
2382void 3100void
2383ev_unloop (EV_P_ int how) 3101ev_break (EV_P_ int how)
2384{ 3102{
2385 loop_done = how; 3103 loop_done = how;
2386} 3104}
2387 3105
2388void 3106void
… …
2508 3226
2509 if (expect_false (ev_is_active (w))) 3227 if (expect_false (ev_is_active (w)))
2510 return; 3228 return;
2511 3229
2512 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3230 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2513 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3231 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2514 3232
2515 EV_FREQUENT_CHECK; 3233 EV_FREQUENT_CHECK;
2516 3234
2517 ev_start (EV_A_ (W)w, 1); 3235 ev_start (EV_A_ (W)w, 1);
2518 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3236 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2536 EV_FREQUENT_CHECK; 3254 EV_FREQUENT_CHECK;
2537 3255
2538 wlist_del (&anfds[w->fd].head, (WL)w); 3256 wlist_del (&anfds[w->fd].head, (WL)w);
2539 ev_stop (EV_A_ (W)w); 3257 ev_stop (EV_A_ (W)w);
2540 3258
2541 fd_change (EV_A_ w->fd, 1); 3259 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2542 3260
2543 EV_FREQUENT_CHECK; 3261 EV_FREQUENT_CHECK;
2544} 3262}
2545 3263
2546void noinline 3264void noinline
… …
2588 timers [active] = timers [timercnt + HEAP0]; 3306 timers [active] = timers [timercnt + HEAP0];
2589 adjustheap (timers, timercnt, active); 3307 adjustheap (timers, timercnt, active);
2590 } 3308 }
2591 } 3309 }
2592 3310
2593 EV_FREQUENT_CHECK;
2594
2595 ev_at (w) -= mn_now; 3311 ev_at (w) -= mn_now;
2596 3312
2597 ev_stop (EV_A_ (W)w); 3313 ev_stop (EV_A_ (W)w);
3314
3315 EV_FREQUENT_CHECK;
2598} 3316}
2599 3317
2600void noinline 3318void noinline
2601ev_timer_again (EV_P_ ev_timer *w) 3319ev_timer_again (EV_P_ ev_timer *w)
2602{ 3320{
2603 EV_FREQUENT_CHECK; 3321 EV_FREQUENT_CHECK;
3322
3323 clear_pending (EV_A_ (W)w);
2604 3324
2605 if (ev_is_active (w)) 3325 if (ev_is_active (w))
2606 { 3326 {
2607 if (w->repeat) 3327 if (w->repeat)
2608 { 3328 {
… …
2638 if (w->reschedule_cb) 3358 if (w->reschedule_cb)
2639 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3359 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2640 else if (w->interval) 3360 else if (w->interval)
2641 { 3361 {
2642 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3362 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2643 /* this formula differs from the one in periodic_reify because we do not always round up */ 3363 periodic_recalc (EV_A_ w);
2644 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2645 } 3364 }
2646 else 3365 else
2647 ev_at (w) = w->offset; 3366 ev_at (w) = w->offset;
2648 3367
2649 EV_FREQUENT_CHECK; 3368 EV_FREQUENT_CHECK;
… …
2681 periodics [active] = periodics [periodiccnt + HEAP0]; 3400 periodics [active] = periodics [periodiccnt + HEAP0];
2682 adjustheap (periodics, periodiccnt, active); 3401 adjustheap (periodics, periodiccnt, active);
2683 } 3402 }
2684 } 3403 }
2685 3404
2686 EV_FREQUENT_CHECK;
2687
2688 ev_stop (EV_A_ (W)w); 3405 ev_stop (EV_A_ (W)w);
3406
3407 EV_FREQUENT_CHECK;
2689} 3408}
2690 3409
2691void noinline 3410void noinline
2692ev_periodic_again (EV_P_ ev_periodic *w) 3411ev_periodic_again (EV_P_ ev_periodic *w)
2693{ 3412{
… …
2698#endif 3417#endif
2699 3418
2700#ifndef SA_RESTART 3419#ifndef SA_RESTART
2701# define SA_RESTART 0 3420# define SA_RESTART 0
2702#endif 3421#endif
3422
3423#if EV_SIGNAL_ENABLE
2703 3424
2704void noinline 3425void noinline
2705ev_signal_start (EV_P_ ev_signal *w) 3426ev_signal_start (EV_P_ ev_signal *w)
2706{ 3427{
2707 if (expect_false (ev_is_active (w))) 3428 if (expect_false (ev_is_active (w)))
… …
2768 sa.sa_handler = ev_sighandler; 3489 sa.sa_handler = ev_sighandler;
2769 sigfillset (&sa.sa_mask); 3490 sigfillset (&sa.sa_mask);
2770 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3491 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2771 sigaction (w->signum, &sa, 0); 3492 sigaction (w->signum, &sa, 0);
2772 3493
3494 if (origflags & EVFLAG_NOSIGMASK)
3495 {
2773 sigemptyset (&sa.sa_mask); 3496 sigemptyset (&sa.sa_mask);
2774 sigaddset (&sa.sa_mask, w->signum); 3497 sigaddset (&sa.sa_mask, w->signum);
2775 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3498 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3499 }
2776#endif 3500#endif
2777 } 3501 }
2778 3502
2779 EV_FREQUENT_CHECK; 3503 EV_FREQUENT_CHECK;
2780} 3504}
… …
2814 } 3538 }
2815 3539
2816 EV_FREQUENT_CHECK; 3540 EV_FREQUENT_CHECK;
2817} 3541}
2818 3542
3543#endif
3544
3545#if EV_CHILD_ENABLE
3546
2819void 3547void
2820ev_child_start (EV_P_ ev_child *w) 3548ev_child_start (EV_P_ ev_child *w)
2821{ 3549{
2822#if EV_MULTIPLICITY 3550#if EV_MULTIPLICITY
2823 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3551 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2826 return; 3554 return;
2827 3555
2828 EV_FREQUENT_CHECK; 3556 EV_FREQUENT_CHECK;
2829 3557
2830 ev_start (EV_A_ (W)w, 1); 3558 ev_start (EV_A_ (W)w, 1);
2831 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3559 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2832 3560
2833 EV_FREQUENT_CHECK; 3561 EV_FREQUENT_CHECK;
2834} 3562}
2835 3563
2836void 3564void
… …
2840 if (expect_false (!ev_is_active (w))) 3568 if (expect_false (!ev_is_active (w)))
2841 return; 3569 return;
2842 3570
2843 EV_FREQUENT_CHECK; 3571 EV_FREQUENT_CHECK;
2844 3572
2845 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3573 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2846 ev_stop (EV_A_ (W)w); 3574 ev_stop (EV_A_ (W)w);
2847 3575
2848 EV_FREQUENT_CHECK; 3576 EV_FREQUENT_CHECK;
2849} 3577}
3578
3579#endif
2850 3580
2851#if EV_STAT_ENABLE 3581#if EV_STAT_ENABLE
2852 3582
2853# ifdef _WIN32 3583# ifdef _WIN32
2854# undef lstat 3584# undef lstat
… …
2915 if (!pend || pend == path) 3645 if (!pend || pend == path)
2916 break; 3646 break;
2917 3647
2918 *pend = 0; 3648 *pend = 0;
2919 w->wd = inotify_add_watch (fs_fd, path, mask); 3649 w->wd = inotify_add_watch (fs_fd, path, mask);
2920 } 3650 }
2921 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3651 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2922 } 3652 }
2923 } 3653 }
2924 3654
2925 if (w->wd >= 0) 3655 if (w->wd >= 0)
2926 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3656 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2927 3657
2928 /* now re-arm timer, if required */ 3658 /* now re-arm timer, if required */
2929 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3659 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2930 ev_timer_again (EV_A_ &w->timer); 3660 ev_timer_again (EV_A_ &w->timer);
2931 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3661 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2939 3669
2940 if (wd < 0) 3670 if (wd < 0)
2941 return; 3671 return;
2942 3672
2943 w->wd = -2; 3673 w->wd = -2;
2944 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3674 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2945 wlist_del (&fs_hash [slot].head, (WL)w); 3675 wlist_del (&fs_hash [slot].head, (WL)w);
2946 3676
2947 /* remove this watcher, if others are watching it, they will rearm */ 3677 /* remove this watcher, if others are watching it, they will rearm */
2948 inotify_rm_watch (fs_fd, wd); 3678 inotify_rm_watch (fs_fd, wd);
2949} 3679}
… …
2951static void noinline 3681static void noinline
2952infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3682infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2953{ 3683{
2954 if (slot < 0) 3684 if (slot < 0)
2955 /* overflow, need to check for all hash slots */ 3685 /* overflow, need to check for all hash slots */
2956 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3686 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2957 infy_wd (EV_A_ slot, wd, ev); 3687 infy_wd (EV_A_ slot, wd, ev);
2958 else 3688 else
2959 { 3689 {
2960 WL w_; 3690 WL w_;
2961 3691
2962 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3692 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2963 { 3693 {
2964 ev_stat *w = (ev_stat *)w_; 3694 ev_stat *w = (ev_stat *)w_;
2965 w_ = w_->next; /* lets us remove this watcher and all before it */ 3695 w_ = w_->next; /* lets us remove this watcher and all before it */
2966 3696
2967 if (w->wd == wd || wd == -1) 3697 if (w->wd == wd || wd == -1)
2968 { 3698 {
2969 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3699 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2970 { 3700 {
2971 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3701 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2972 w->wd = -1; 3702 w->wd = -1;
2973 infy_add (EV_A_ w); /* re-add, no matter what */ 3703 infy_add (EV_A_ w); /* re-add, no matter what */
2974 } 3704 }
2975 3705
2976 stat_timer_cb (EV_A_ &w->timer, 0); 3706 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2992 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3722 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2993 ofs += sizeof (struct inotify_event) + ev->len; 3723 ofs += sizeof (struct inotify_event) + ev->len;
2994 } 3724 }
2995} 3725}
2996 3726
2997inline_size void 3727inline_size void ecb_cold
2998check_2625 (EV_P) 3728ev_check_2625 (EV_P)
2999{ 3729{
3000 /* kernels < 2.6.25 are borked 3730 /* kernels < 2.6.25 are borked
3001 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3731 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3002 */ 3732 */
3003 struct utsname buf; 3733 if (ev_linux_version () < 0x020619)
3004 int major, minor, micro;
3005
3006 if (uname (&buf))
3007 return;
3008
3009 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
3010 return;
3011
3012 if (major < 2
3013 || (major == 2 && minor < 6)
3014 || (major == 2 && minor == 6 && micro < 25))
3015 return; 3734 return;
3016 3735
3017 fs_2625 = 1; 3736 fs_2625 = 1;
3018} 3737}
3019 3738
… …
3034 if (fs_fd != -2) 3753 if (fs_fd != -2)
3035 return; 3754 return;
3036 3755
3037 fs_fd = -1; 3756 fs_fd = -1;
3038 3757
3039 check_2625 (EV_A); 3758 ev_check_2625 (EV_A);
3040 3759
3041 fs_fd = infy_newfd (); 3760 fs_fd = infy_newfd ();
3042 3761
3043 if (fs_fd >= 0) 3762 if (fs_fd >= 0)
3044 { 3763 {
… …
3069 ev_io_set (&fs_w, fs_fd, EV_READ); 3788 ev_io_set (&fs_w, fs_fd, EV_READ);
3070 ev_io_start (EV_A_ &fs_w); 3789 ev_io_start (EV_A_ &fs_w);
3071 ev_unref (EV_A); 3790 ev_unref (EV_A);
3072 } 3791 }
3073 3792
3074 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3793 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3075 { 3794 {
3076 WL w_ = fs_hash [slot].head; 3795 WL w_ = fs_hash [slot].head;
3077 fs_hash [slot].head = 0; 3796 fs_hash [slot].head = 0;
3078 3797
3079 while (w_) 3798 while (w_)
… …
3254 3973
3255 EV_FREQUENT_CHECK; 3974 EV_FREQUENT_CHECK;
3256} 3975}
3257#endif 3976#endif
3258 3977
3978#if EV_PREPARE_ENABLE
3259void 3979void
3260ev_prepare_start (EV_P_ ev_prepare *w) 3980ev_prepare_start (EV_P_ ev_prepare *w)
3261{ 3981{
3262 if (expect_false (ev_is_active (w))) 3982 if (expect_false (ev_is_active (w)))
3263 return; 3983 return;
… …
3289 4009
3290 ev_stop (EV_A_ (W)w); 4010 ev_stop (EV_A_ (W)w);
3291 4011
3292 EV_FREQUENT_CHECK; 4012 EV_FREQUENT_CHECK;
3293} 4013}
4014#endif
3294 4015
4016#if EV_CHECK_ENABLE
3295void 4017void
3296ev_check_start (EV_P_ ev_check *w) 4018ev_check_start (EV_P_ ev_check *w)
3297{ 4019{
3298 if (expect_false (ev_is_active (w))) 4020 if (expect_false (ev_is_active (w)))
3299 return; 4021 return;
… …
3325 4047
3326 ev_stop (EV_A_ (W)w); 4048 ev_stop (EV_A_ (W)w);
3327 4049
3328 EV_FREQUENT_CHECK; 4050 EV_FREQUENT_CHECK;
3329} 4051}
4052#endif
3330 4053
3331#if EV_EMBED_ENABLE 4054#if EV_EMBED_ENABLE
3332void noinline 4055void noinline
3333ev_embed_sweep (EV_P_ ev_embed *w) 4056ev_embed_sweep (EV_P_ ev_embed *w)
3334{ 4057{
3335 ev_loop (w->other, EVLOOP_NONBLOCK); 4058 ev_run (w->other, EVRUN_NOWAIT);
3336} 4059}
3337 4060
3338static void 4061static void
3339embed_io_cb (EV_P_ ev_io *io, int revents) 4062embed_io_cb (EV_P_ ev_io *io, int revents)
3340{ 4063{
3341 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4064 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3342 4065
3343 if (ev_cb (w)) 4066 if (ev_cb (w))
3344 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4067 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3345 else 4068 else
3346 ev_loop (w->other, EVLOOP_NONBLOCK); 4069 ev_run (w->other, EVRUN_NOWAIT);
3347} 4070}
3348 4071
3349static void 4072static void
3350embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4073embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3351{ 4074{
… …
3355 EV_P = w->other; 4078 EV_P = w->other;
3356 4079
3357 while (fdchangecnt) 4080 while (fdchangecnt)
3358 { 4081 {
3359 fd_reify (EV_A); 4082 fd_reify (EV_A);
3360 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4083 ev_run (EV_A_ EVRUN_NOWAIT);
3361 } 4084 }
3362 } 4085 }
3363} 4086}
3364 4087
3365static void 4088static void
… …
3371 4094
3372 { 4095 {
3373 EV_P = w->other; 4096 EV_P = w->other;
3374 4097
3375 ev_loop_fork (EV_A); 4098 ev_loop_fork (EV_A);
3376 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4099 ev_run (EV_A_ EVRUN_NOWAIT);
3377 } 4100 }
3378 4101
3379 ev_embed_start (EV_A_ w); 4102 ev_embed_start (EV_A_ w);
3380} 4103}
3381 4104
… …
3429 4152
3430 ev_io_stop (EV_A_ &w->io); 4153 ev_io_stop (EV_A_ &w->io);
3431 ev_prepare_stop (EV_A_ &w->prepare); 4154 ev_prepare_stop (EV_A_ &w->prepare);
3432 ev_fork_stop (EV_A_ &w->fork); 4155 ev_fork_stop (EV_A_ &w->fork);
3433 4156
4157 ev_stop (EV_A_ (W)w);
4158
3434 EV_FREQUENT_CHECK; 4159 EV_FREQUENT_CHECK;
3435} 4160}
3436#endif 4161#endif
3437 4162
3438#if EV_FORK_ENABLE 4163#if EV_FORK_ENABLE
… …
3471 4196
3472 EV_FREQUENT_CHECK; 4197 EV_FREQUENT_CHECK;
3473} 4198}
3474#endif 4199#endif
3475 4200
4201#if EV_CLEANUP_ENABLE
4202void
4203ev_cleanup_start (EV_P_ ev_cleanup *w)
4204{
4205 if (expect_false (ev_is_active (w)))
4206 return;
4207
4208 EV_FREQUENT_CHECK;
4209
4210 ev_start (EV_A_ (W)w, ++cleanupcnt);
4211 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4212 cleanups [cleanupcnt - 1] = w;
4213
4214 /* cleanup watchers should never keep a refcount on the loop */
4215 ev_unref (EV_A);
4216 EV_FREQUENT_CHECK;
4217}
4218
4219void
4220ev_cleanup_stop (EV_P_ ev_cleanup *w)
4221{
4222 clear_pending (EV_A_ (W)w);
4223 if (expect_false (!ev_is_active (w)))
4224 return;
4225
4226 EV_FREQUENT_CHECK;
4227 ev_ref (EV_A);
4228
4229 {
4230 int active = ev_active (w);
4231
4232 cleanups [active - 1] = cleanups [--cleanupcnt];
4233 ev_active (cleanups [active - 1]) = active;
4234 }
4235
4236 ev_stop (EV_A_ (W)w);
4237
4238 EV_FREQUENT_CHECK;
4239}
4240#endif
4241
3476#if EV_ASYNC_ENABLE 4242#if EV_ASYNC_ENABLE
3477void 4243void
3478ev_async_start (EV_P_ ev_async *w) 4244ev_async_start (EV_P_ ev_async *w)
3479{ 4245{
3480 if (expect_false (ev_is_active (w))) 4246 if (expect_false (ev_is_active (w)))
3481 return; 4247 return;
4248
4249 w->sent = 0;
3482 4250
3483 evpipe_init (EV_A); 4251 evpipe_init (EV_A);
3484 4252
3485 EV_FREQUENT_CHECK; 4253 EV_FREQUENT_CHECK;
3486 4254
… …
3564{ 4332{
3565 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4333 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3566 4334
3567 if (expect_false (!once)) 4335 if (expect_false (!once))
3568 { 4336 {
3569 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4337 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3570 return; 4338 return;
3571 } 4339 }
3572 4340
3573 once->cb = cb; 4341 once->cb = cb;
3574 once->arg = arg; 4342 once->arg = arg;
… …
3589} 4357}
3590 4358
3591/*****************************************************************************/ 4359/*****************************************************************************/
3592 4360
3593#if EV_WALK_ENABLE 4361#if EV_WALK_ENABLE
3594void 4362void ecb_cold
3595ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4363ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3596{ 4364{
3597 int i, j; 4365 int i, j;
3598 ev_watcher_list *wl, *wn; 4366 ev_watcher_list *wl, *wn;
3599 4367
… …
3643 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4411 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3644#endif 4412#endif
3645 4413
3646#if EV_IDLE_ENABLE 4414#if EV_IDLE_ENABLE
3647 if (types & EV_IDLE) 4415 if (types & EV_IDLE)
3648 for (j = NUMPRI; i--; ) 4416 for (j = NUMPRI; j--; )
3649 for (i = idlecnt [j]; i--; ) 4417 for (i = idlecnt [j]; i--; )
3650 cb (EV_A_ EV_IDLE, idles [j][i]); 4418 cb (EV_A_ EV_IDLE, idles [j][i]);
3651#endif 4419#endif
3652 4420
3653#if EV_FORK_ENABLE 4421#if EV_FORK_ENABLE
… …
3661 if (types & EV_ASYNC) 4429 if (types & EV_ASYNC)
3662 for (i = asynccnt; i--; ) 4430 for (i = asynccnt; i--; )
3663 cb (EV_A_ EV_ASYNC, asyncs [i]); 4431 cb (EV_A_ EV_ASYNC, asyncs [i]);
3664#endif 4432#endif
3665 4433
4434#if EV_PREPARE_ENABLE
3666 if (types & EV_PREPARE) 4435 if (types & EV_PREPARE)
3667 for (i = preparecnt; i--; ) 4436 for (i = preparecnt; i--; )
3668#if EV_EMBED_ENABLE 4437# if EV_EMBED_ENABLE
3669 if (ev_cb (prepares [i]) != embed_prepare_cb) 4438 if (ev_cb (prepares [i]) != embed_prepare_cb)
3670#endif 4439# endif
3671 cb (EV_A_ EV_PREPARE, prepares [i]); 4440 cb (EV_A_ EV_PREPARE, prepares [i]);
4441#endif
3672 4442
4443#if EV_CHECK_ENABLE
3673 if (types & EV_CHECK) 4444 if (types & EV_CHECK)
3674 for (i = checkcnt; i--; ) 4445 for (i = checkcnt; i--; )
3675 cb (EV_A_ EV_CHECK, checks [i]); 4446 cb (EV_A_ EV_CHECK, checks [i]);
4447#endif
3676 4448
4449#if EV_SIGNAL_ENABLE
3677 if (types & EV_SIGNAL) 4450 if (types & EV_SIGNAL)
3678 for (i = 0; i < EV_NSIG - 1; ++i) 4451 for (i = 0; i < EV_NSIG - 1; ++i)
3679 for (wl = signals [i].head; wl; ) 4452 for (wl = signals [i].head; wl; )
3680 { 4453 {
3681 wn = wl->next; 4454 wn = wl->next;
3682 cb (EV_A_ EV_SIGNAL, wl); 4455 cb (EV_A_ EV_SIGNAL, wl);
3683 wl = wn; 4456 wl = wn;
3684 } 4457 }
4458#endif
3685 4459
4460#if EV_CHILD_ENABLE
3686 if (types & EV_CHILD) 4461 if (types & EV_CHILD)
3687 for (i = EV_PID_HASHSIZE; i--; ) 4462 for (i = (EV_PID_HASHSIZE); i--; )
3688 for (wl = childs [i]; wl; ) 4463 for (wl = childs [i]; wl; )
3689 { 4464 {
3690 wn = wl->next; 4465 wn = wl->next;
3691 cb (EV_A_ EV_CHILD, wl); 4466 cb (EV_A_ EV_CHILD, wl);
3692 wl = wn; 4467 wl = wn;
3693 } 4468 }
4469#endif
3694/* EV_STAT 0x00001000 /* stat data changed */ 4470/* EV_STAT 0x00001000 /* stat data changed */
3695/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4471/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3696} 4472}
3697#endif 4473#endif
3698 4474
3699#if EV_MULTIPLICITY 4475#if EV_MULTIPLICITY
3700 #include "ev_wrap.h" 4476 #include "ev_wrap.h"
3701#endif 4477#endif
3702 4478
3703#ifdef __cplusplus
3704}
3705#endif
3706

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