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Comparing libev/ev.c (file contents):
Revision 1.331 by root, Tue Mar 9 08:55:03 2010 UTC vs.
Revision 1.410 by root, Sat Feb 4 17:57:55 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>
… …
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
189# undef EV_AVOID_STDIO 210# undef EV_AVOID_STDIO
190#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
191 220
192/* this block tries to deduce configuration from header-defined symbols and defaults */ 221/* this block tries to deduce configuration from header-defined symbols and defaults */
193 222
194/* try to deduce the maximum number of signals on this platform */ 223/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 224#if defined (EV_NSIG)
… …
207#elif defined (MAXSIG) 236#elif defined (MAXSIG)
208# define EV_NSIG (MAXSIG+1) 237# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 238#elif defined (MAX_SIG)
210# define EV_NSIG (MAX_SIG+1) 239# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 240#elif defined (SIGARRAYSIZE)
212# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 242#elif defined (_sys_nsig)
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 244#else
216# error "unable to find value for NSIG, please report" 245# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line */ 246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
218# define EV_NSIG 65 248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
219#endif 253#endif
220 254
221#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
222# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
223# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
224# else 258# else
225# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
226# endif 260# endif
227#endif 261#endif
228 262
229#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
230# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
231# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
232# else 266# else
233# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
234# endif 268# endif
235#endif 269#endif
236 270
… …
238# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239#endif 273#endif
240 274
241#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
242# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
243# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
244# else 278# else
245# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
246# endif 280# endif
247#endif 281#endif
248 282
249#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
250# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
251#endif 285#endif
252 286
253#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
254# ifdef _WIN32 288# ifdef _WIN32
255# define EV_USE_POLL 0 289# define EV_USE_POLL 0
256# else 290# else
257# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
258# endif 292# endif
259#endif 293#endif
260 294
261#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264# else 298# else
265# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
266# endif 300# endif
267#endif 301#endif
268 302
… …
274# define EV_USE_PORT 0 308# define EV_USE_PORT 0
275#endif 309#endif
276 310
277#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
280# else 314# else
281# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
282# endif 316# endif
283#endif 317#endif
284 318
285#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
286# if EV_MINIMAL 320# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
287# define EV_PID_HASHSIZE 1
288# else
289# define EV_PID_HASHSIZE 16
290# endif
291#endif 321#endif
292 322
293#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
294# if EV_MINIMAL 324# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
295# define EV_INOTIFY_HASHSIZE 1
296# else
297# define EV_INOTIFY_HASHSIZE 16
298# endif
299#endif 325#endif
300 326
301#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
302# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
304# else 330# else
305# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
306# endif 332# endif
307#endif 333#endif
308 334
309#ifndef EV_USE_SIGNALFD 335#ifndef EV_USE_SIGNALFD
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311# define EV_USE_SIGNALFD 1 337# define EV_USE_SIGNALFD EV_FEATURE_OS
312# else 338# else
313# define EV_USE_SIGNALFD 0 339# define EV_USE_SIGNALFD 0
314# endif 340# endif
315#endif 341#endif
316 342
… …
319# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
320# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
321#endif 347#endif
322 348
323#ifndef EV_VERIFY 349#ifndef EV_VERIFY
324# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325#endif 351#endif
326 352
327#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
328# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
329#endif 355#endif
330 356
331#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
332# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
333#endif 359#endif
334 360
335/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
336/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
337#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
… …
368# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
369# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
370#endif 396#endif
371 397
372#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
373# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined(_WIN32) && !defined(__hpux)
374# include <sys/select.h> 401# include <sys/select.h>
375# endif 402# endif
376#endif 403#endif
377 404
378#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
379# include <sys/utsname.h>
380# include <sys/statfs.h> 406# include <sys/statfs.h>
381# include <sys/inotify.h> 407# include <sys/inotify.h>
382/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
383# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
384# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
401# define EFD_CLOEXEC O_CLOEXEC 427# define EFD_CLOEXEC O_CLOEXEC
402# else 428# else
403# define EFD_CLOEXEC 02000000 429# define EFD_CLOEXEC 02000000
404# endif 430# endif
405# endif 431# endif
406# ifdef __cplusplus
407extern "C" {
408# endif
409int (eventfd) (unsigned int initval, int flags); 432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410# ifdef __cplusplus
411}
412# endif
413#endif 433#endif
414 434
415#if EV_USE_SIGNALFD 435#if EV_USE_SIGNALFD
416/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 436/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
417# include <stdint.h> 437# include <stdint.h>
… …
423# define SFD_CLOEXEC O_CLOEXEC 443# define SFD_CLOEXEC O_CLOEXEC
424# else 444# else
425# define SFD_CLOEXEC 02000000 445# define SFD_CLOEXEC 02000000
426# endif 446# endif
427# endif 447# endif
428# ifdef __cplusplus
429extern "C" {
430# endif
431int signalfd (int fd, const sigset_t *mask, int flags); 448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
432 449
433struct signalfd_siginfo 450struct signalfd_siginfo
434{ 451{
435 uint32_t ssi_signo; 452 uint32_t ssi_signo;
436 char pad[128 - sizeof (uint32_t)]; 453 char pad[128 - sizeof (uint32_t)];
437}; 454};
438# ifdef __cplusplus
439}
440# endif 455#endif
441#endif
442
443 456
444/**/ 457/**/
445 458
446#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
447# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
448#else 461#else
449# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
450#endif 463#endif
451 464
452/* 465/*
453 * This is used to avoid floating point rounding problems. 466 * This is used to work around floating point rounding problems.
454 * It is added to ev_rt_now when scheduling periodics
455 * to ensure progress, time-wise, even when rounding
456 * errors are against us.
457 * This value is good at least till the year 4000. 467 * This value is good at least till the year 4000.
458 * Better solutions welcome.
459 */ 468 */
460#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
470/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
461 471
462#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 472#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
463#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 473#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
464 474
475#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
476#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
477
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */
480/*
481 * libecb - http://software.schmorp.de/pkg/libecb
482 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved.
486 *
487 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met:
489 *
490 * 1. Redistributions of source code must retain the above copyright notice,
491 * this list of conditions and the following disclaimer.
492 *
493 * 2. Redistributions in binary form must reproduce the above copyright
494 * notice, this list of conditions and the following disclaimer in the
495 * documentation and/or other materials provided with the distribution.
496 *
497 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
498 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
499 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
500 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
501 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE.
507 */
508
509#ifndef ECB_H
510#define ECB_H
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
465#if __GNUC__ >= 4 519 #if __GNUC__
466# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
467# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
468#else 526#else
469# define expect(expr,value) (expr) 527 #include <inttypes.h>
470# define noinline
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
472# define inline
473# endif 528#endif
529
530/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place.
536 */
537#ifndef ECB_GCC_VERSION
538 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
539 #define ECB_GCC_VERSION(major,minor) 0
540 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
474#endif 542 #endif
543#endif
475 544
545/*****************************************************************************/
546
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549
550#if ECB_NO_THREADS
551# define ECB_NO_SMP 1
552#endif
553
554#if ECB_NO_THREADS || ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0)
556#endif
557
558#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__)
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #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. */
476#define expect_false(expr) expect ((expr) != 0, 0) 702#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#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
478#define inline_size static inline 954#define inline_size ecb_inline
479 955
480#if EV_MINIMAL 956#if EV_FEATURE_CODE
957# define inline_speed ecb_inline
958#else
481# define inline_speed static noinline 959# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 960#endif
485 961
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 962#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 963
488#if EV_MINPRI == EV_MAXPRI 964#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 977#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 978#define ev_at(w) ((WT)(w))->at
503 979
504#if EV_USE_REALTIME 980#if EV_USE_REALTIME
505/* 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 */
506/* giving it a reasonably high chance of working on typical architetcures */ 982/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 983static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 984#endif
509 985
510#if EV_USE_MONOTONIC 986#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 987static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 1001# include "ev_win32.c"
526#endif 1002#endif
527 1003
528/*****************************************************************************/ 1004/*****************************************************************************/
529 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
530#if EV_AVOID_STDIO 1096#if EV_AVOID_STDIO
531static void noinline 1097static void noinline ecb_cold
532ev_printerr (const char *msg) 1098ev_printerr (const char *msg)
533{ 1099{
534 write (STDERR_FILENO, msg, strlen (msg)); 1100 write (STDERR_FILENO, msg, strlen (msg));
535} 1101}
536#endif 1102#endif
537 1103
538static void (*syserr_cb)(const char *msg); 1104static void (*syserr_cb)(const char *msg);
539 1105
540void 1106void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 1107ev_set_syserr_cb (void (*cb)(const char *msg))
542{ 1108{
543 syserr_cb = cb; 1109 syserr_cb = cb;
544} 1110}
545 1111
546static void noinline 1112static void noinline ecb_cold
547ev_syserr (const char *msg) 1113ev_syserr (const char *msg)
548{ 1114{
549 if (!msg) 1115 if (!msg)
550 msg = "(libev) system error"; 1116 msg = "(libev) system error";
551 1117
552 if (syserr_cb) 1118 if (syserr_cb)
553 syserr_cb (msg); 1119 syserr_cb (msg);
554 else 1120 else
555 { 1121 {
556#if EV_AVOID_STDIO 1122#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 1123 ev_printerr (msg);
560 ev_printerr (": "); 1124 ev_printerr (": ");
561 ev_printerr (err); 1125 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 1126 ev_printerr ("\n");
563#else 1127#else
564 perror (msg); 1128 perror (msg);
565#endif 1129#endif
566 abort (); 1130 abort ();
… …
568} 1132}
569 1133
570static void * 1134static void *
571ev_realloc_emul (void *ptr, long size) 1135ev_realloc_emul (void *ptr, long size)
572{ 1136{
1137#if __GLIBC__
1138 return realloc (ptr, size);
1139#else
573 /* some systems, notably openbsd and darwin, fail to properly 1140 /* some systems, notably openbsd and darwin, fail to properly
574 * 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
575 * the single unix specification, so work around them here. 1142 * the single unix specification, so work around them here.
576 */ 1143 */
577 1144
578 if (size) 1145 if (size)
579 return realloc (ptr, size); 1146 return realloc (ptr, size);
580 1147
581 free (ptr); 1148 free (ptr);
582 return 0; 1149 return 0;
1150#endif
583} 1151}
584 1152
585static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1153static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
586 1154
587void 1155void ecb_cold
588ev_set_allocator (void *(*cb)(void *ptr, long size)) 1156ev_set_allocator (void *(*cb)(void *ptr, long size))
589{ 1157{
590 alloc = cb; 1158 alloc = cb;
591} 1159}
592 1160
… …
596 ptr = alloc (ptr, size); 1164 ptr = alloc (ptr, size);
597 1165
598 if (!ptr && size) 1166 if (!ptr && size)
599 { 1167 {
600#if EV_AVOID_STDIO 1168#if EV_AVOID_STDIO
601 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1169 ev_printerr ("(libev) memory allocation failed, aborting.\n");
602#else 1170#else
603 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1171 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
604#endif 1172#endif
605 abort (); 1173 abort ();
606 } 1174 }
607 1175
608 return ptr; 1176 return ptr;
… …
625 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 */
626 unsigned char unused; 1194 unsigned char unused;
627#if EV_USE_EPOLL 1195#if EV_USE_EPOLL
628 unsigned int egen; /* generation counter to counter epoll bugs */ 1196 unsigned int egen; /* generation counter to counter epoll bugs */
629#endif 1197#endif
630#if EV_SELECT_IS_WINSOCKET 1198#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
631 SOCKET handle; 1199 SOCKET handle;
1200#endif
1201#if EV_USE_IOCP
1202 OVERLAPPED or, ow;
632#endif 1203#endif
633} ANFD; 1204} ANFD;
634 1205
635/* stores the pending event set for a given watcher */ 1206/* stores the pending event set for a given watcher */
636typedef struct 1207typedef struct
… …
678 #undef VAR 1249 #undef VAR
679 }; 1250 };
680 #include "ev_wrap.h" 1251 #include "ev_wrap.h"
681 1252
682 static struct ev_loop default_loop_struct; 1253 static struct ev_loop default_loop_struct;
683 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 */
684 1255
685#else 1256#else
686 1257
687 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 */
688 #define VAR(name,decl) static decl; 1259 #define VAR(name,decl) static decl;
689 #include "ev_vars.h" 1260 #include "ev_vars.h"
690 #undef VAR 1261 #undef VAR
691 1262
692 static int ev_default_loop_ptr; 1263 static int ev_default_loop_ptr;
693 1264
694#endif 1265#endif
695 1266
696#if EV_MINIMAL < 2 1267#if EV_FEATURE_API
697# 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)
698# 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)
699# define EV_INVOKE_PENDING invoke_cb (EV_A) 1270# define EV_INVOKE_PENDING invoke_cb (EV_A)
700#else 1271#else
701# define EV_RELEASE_CB (void)0 1272# define EV_RELEASE_CB (void)0
702# define EV_ACQUIRE_CB (void)0 1273# define EV_ACQUIRE_CB (void)0
703# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1274# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
704#endif 1275#endif
705 1276
706#define EVUNLOOP_RECURSE 0x80 1277#define EVBREAK_RECURSE 0x80
707 1278
708/*****************************************************************************/ 1279/*****************************************************************************/
709 1280
710#ifndef EV_HAVE_EV_TIME 1281#ifndef EV_HAVE_EV_TIME
711ev_tstamp 1282ev_tstamp
… …
755 if (delay > 0.) 1326 if (delay > 0.)
756 { 1327 {
757#if EV_USE_NANOSLEEP 1328#if EV_USE_NANOSLEEP
758 struct timespec ts; 1329 struct timespec ts;
759 1330
760 ts.tv_sec = (time_t)delay; 1331 EV_TS_SET (ts, delay);
761 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
762
763 nanosleep (&ts, 0); 1332 nanosleep (&ts, 0);
764#elif defined(_WIN32) 1333#elif defined(_WIN32)
765 Sleep ((unsigned long)(delay * 1e3)); 1334 Sleep ((unsigned long)(delay * 1e3));
766#else 1335#else
767 struct timeval tv; 1336 struct timeval tv;
768 1337
769 tv.tv_sec = (time_t)delay;
770 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
771
772 /* 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 */
773 /* something not guaranteed by newer posix versions, but guaranteed */ 1339 /* something not guaranteed by newer posix versions, but guaranteed */
774 /* by older ones */ 1340 /* by older ones */
1341 EV_TV_SET (tv, delay);
775 select (0, 0, 0, 0, &tv); 1342 select (0, 0, 0, 0, &tv);
776#endif 1343#endif
777 } 1344 }
778} 1345}
779 1346
780/*****************************************************************************/ 1347/*****************************************************************************/
781 1348
782#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 */
783 1350
784/* find a suitable new size for the given array, */ 1351/* find a suitable new size for the given array, */
785/* hopefully by rounding to a ncie-to-malloc size */ 1352/* hopefully by rounding to a nice-to-malloc size */
786inline_size int 1353inline_size int
787array_nextsize (int elem, int cur, int cnt) 1354array_nextsize (int elem, int cur, int cnt)
788{ 1355{
789 int ncur = cur + 1; 1356 int ncur = cur + 1;
790 1357
791 do 1358 do
792 ncur <<= 1; 1359 ncur <<= 1;
793 while (cnt > ncur); 1360 while (cnt > ncur);
794 1361
795 /* 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 */
796 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1363 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
797 { 1364 {
798 ncur *= elem; 1365 ncur *= elem;
799 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);
800 ncur = ncur - sizeof (void *) * 4; 1367 ncur = ncur - sizeof (void *) * 4;
… …
802 } 1369 }
803 1370
804 return ncur; 1371 return ncur;
805} 1372}
806 1373
807static noinline void * 1374static void * noinline ecb_cold
808array_realloc (int elem, void *base, int *cur, int cnt) 1375array_realloc (int elem, void *base, int *cur, int cnt)
809{ 1376{
810 *cur = array_nextsize (elem, *cur, cnt); 1377 *cur = array_nextsize (elem, *cur, cnt);
811 return ev_realloc (base, elem * *cur); 1378 return ev_realloc (base, elem * *cur);
812} 1379}
… …
815 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1382 memset ((void *)(base), 0, sizeof (*(base)) * (count))
816 1383
817#define array_needsize(type,base,cur,cnt,init) \ 1384#define array_needsize(type,base,cur,cnt,init) \
818 if (expect_false ((cnt) > (cur))) \ 1385 if (expect_false ((cnt) > (cur))) \
819 { \ 1386 { \
820 int ocur_ = (cur); \ 1387 int ecb_unused ocur_ = (cur); \
821 (base) = (type *)array_realloc \ 1388 (base) = (type *)array_realloc \
822 (sizeof (type), (base), &(cur), (cnt)); \ 1389 (sizeof (type), (base), &(cur), (cnt)); \
823 init ((base) + (ocur_), (cur) - ocur_); \ 1390 init ((base) + (ocur_), (cur) - ocur_); \
824 } 1391 }
825 1392
… …
886} 1453}
887 1454
888/*****************************************************************************/ 1455/*****************************************************************************/
889 1456
890inline_speed void 1457inline_speed void
891fd_event_nc (EV_P_ int fd, int revents) 1458fd_event_nocheck (EV_P_ int fd, int revents)
892{ 1459{
893 ANFD *anfd = anfds + fd; 1460 ANFD *anfd = anfds + fd;
894 ev_io *w; 1461 ev_io *w;
895 1462
896 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)
… …
908fd_event (EV_P_ int fd, int revents) 1475fd_event (EV_P_ int fd, int revents)
909{ 1476{
910 ANFD *anfd = anfds + fd; 1477 ANFD *anfd = anfds + fd;
911 1478
912 if (expect_true (!anfd->reify)) 1479 if (expect_true (!anfd->reify))
913 fd_event_nc (EV_A_ fd, revents); 1480 fd_event_nocheck (EV_A_ fd, revents);
914} 1481}
915 1482
916void 1483void
917ev_feed_fd_event (EV_P_ int fd, int revents) 1484ev_feed_fd_event (EV_P_ int fd, int revents)
918{ 1485{
919 if (fd >= 0 && fd < anfdmax) 1486 if (fd >= 0 && fd < anfdmax)
920 fd_event_nc (EV_A_ fd, revents); 1487 fd_event_nocheck (EV_A_ fd, revents);
921} 1488}
922 1489
923/* make sure the external fd watch events are in-sync */ 1490/* make sure the external fd watch events are in-sync */
924/* with the kernel/libev internal state */ 1491/* with the kernel/libev internal state */
925inline_size void 1492inline_size void
926fd_reify (EV_P) 1493fd_reify (EV_P)
927{ 1494{
928 int i; 1495 int i;
929 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
930 for (i = 0; i < fdchangecnt; ++i) 1522 for (i = 0; i < fdchangecnt; ++i)
931 { 1523 {
932 int fd = fdchanges [i]; 1524 int fd = fdchanges [i];
933 ANFD *anfd = anfds + fd; 1525 ANFD *anfd = anfds + fd;
934 ev_io *w; 1526 ev_io *w;
935 1527
936 unsigned char events = 0; 1528 unsigned char o_events = anfd->events;
1529 unsigned char o_reify = anfd->reify;
937 1530
938 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1531 anfd->reify = 0;
939 events |= (unsigned char)w->events;
940 1532
941#if EV_SELECT_IS_WINSOCKET 1533 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
942 if (events)
943 { 1534 {
944 unsigned long arg; 1535 anfd->events = 0;
945 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1536
946 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 |= */
947 } 1542 }
948#endif
949 1543
950 { 1544 if (o_reify & EV__IOFDSET)
951 unsigned char o_events = anfd->events;
952 unsigned char o_reify = anfd->reify;
953
954 anfd->reify = 0;
955 anfd->events = events;
956
957 if (o_events != events || o_reify & EV__IOFDSET)
958 backend_modify (EV_A_ fd, o_events, events); 1545 backend_modify (EV_A_ fd, o_events, anfd->events);
959 }
960 } 1546 }
961 1547
962 fdchangecnt = 0; 1548 fdchangecnt = 0;
963} 1549}
964 1550
… …
976 fdchanges [fdchangecnt - 1] = fd; 1562 fdchanges [fdchangecnt - 1] = fd;
977 } 1563 }
978} 1564}
979 1565
980/* 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 */
981inline_speed void 1567inline_speed void ecb_cold
982fd_kill (EV_P_ int fd) 1568fd_kill (EV_P_ int fd)
983{ 1569{
984 ev_io *w; 1570 ev_io *w;
985 1571
986 while ((w = (ev_io *)anfds [fd].head)) 1572 while ((w = (ev_io *)anfds [fd].head))
… …
988 ev_io_stop (EV_A_ w); 1574 ev_io_stop (EV_A_ w);
989 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);
990 } 1576 }
991} 1577}
992 1578
993/* check whether the given fd is atcually valid, for error recovery */ 1579/* check whether the given fd is actually valid, for error recovery */
994inline_size int 1580inline_size int ecb_cold
995fd_valid (int fd) 1581fd_valid (int fd)
996{ 1582{
997#ifdef _WIN32 1583#ifdef _WIN32
998 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1584 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
999#else 1585#else
1000 return fcntl (fd, F_GETFD) != -1; 1586 return fcntl (fd, F_GETFD) != -1;
1001#endif 1587#endif
1002} 1588}
1003 1589
1004/* called on EBADF to verify fds */ 1590/* called on EBADF to verify fds */
1005static void noinline 1591static void noinline ecb_cold
1006fd_ebadf (EV_P) 1592fd_ebadf (EV_P)
1007{ 1593{
1008 int fd; 1594 int fd;
1009 1595
1010 for (fd = 0; fd < anfdmax; ++fd) 1596 for (fd = 0; fd < anfdmax; ++fd)
… …
1012 if (!fd_valid (fd) && errno == EBADF) 1598 if (!fd_valid (fd) && errno == EBADF)
1013 fd_kill (EV_A_ fd); 1599 fd_kill (EV_A_ fd);
1014} 1600}
1015 1601
1016/* 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 */
1017static void noinline 1603static void noinline ecb_cold
1018fd_enomem (EV_P) 1604fd_enomem (EV_P)
1019{ 1605{
1020 int fd; 1606 int fd;
1021 1607
1022 for (fd = anfdmax; fd--; ) 1608 for (fd = anfdmax; fd--; )
… …
1040 anfds [fd].emask = 0; 1626 anfds [fd].emask = 0;
1041 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1627 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1042 } 1628 }
1043} 1629}
1044 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
1045/*****************************************************************************/ 1645/*****************************************************************************/
1046 1646
1047/* 1647/*
1048 * 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
1049 * 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
1050 * the branching factor of the d-tree. 1650 * the branching factor of the d-tree.
1051 */ 1651 */
1052 1652
1053/* 1653/*
… …
1201 1801
1202static ANSIG signals [EV_NSIG - 1]; 1802static ANSIG signals [EV_NSIG - 1];
1203 1803
1204/*****************************************************************************/ 1804/*****************************************************************************/
1205 1805
1206/* used to prepare libev internal fd's */ 1806#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1207/* this is not fork-safe */
1208inline_speed void
1209fd_intern (int fd)
1210{
1211#ifdef _WIN32
1212 unsigned long arg = 1;
1213 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1214#else
1215 fcntl (fd, F_SETFD, FD_CLOEXEC);
1216 fcntl (fd, F_SETFL, O_NONBLOCK);
1217#endif
1218}
1219 1807
1220static void noinline 1808static void noinline ecb_cold
1221evpipe_init (EV_P) 1809evpipe_init (EV_P)
1222{ 1810{
1223 if (!ev_is_active (&pipe_w)) 1811 if (!ev_is_active (&pipe_w))
1224 { 1812 {
1225#if EV_USE_EVENTFD 1813# if EV_USE_EVENTFD
1226 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1814 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1227 if (evfd < 0 && errno == EINVAL) 1815 if (evfd < 0 && errno == EINVAL)
1228 evfd = eventfd (0, 0); 1816 evfd = eventfd (0, 0);
1229 1817
1230 if (evfd >= 0) 1818 if (evfd >= 0)
… …
1232 evpipe [0] = -1; 1820 evpipe [0] = -1;
1233 fd_intern (evfd); /* doing it twice doesn't hurt */ 1821 fd_intern (evfd); /* doing it twice doesn't hurt */
1234 ev_io_set (&pipe_w, evfd, EV_READ); 1822 ev_io_set (&pipe_w, evfd, EV_READ);
1235 } 1823 }
1236 else 1824 else
1237#endif 1825# endif
1238 { 1826 {
1239 while (pipe (evpipe)) 1827 while (pipe (evpipe))
1240 ev_syserr ("(libev) error creating signal/async pipe"); 1828 ev_syserr ("(libev) error creating signal/async pipe");
1241 1829
1242 fd_intern (evpipe [0]); 1830 fd_intern (evpipe [0]);
… …
1247 ev_io_start (EV_A_ &pipe_w); 1835 ev_io_start (EV_A_ &pipe_w);
1248 ev_unref (EV_A); /* watcher should not keep loop alive */ 1836 ev_unref (EV_A); /* watcher should not keep loop alive */
1249 } 1837 }
1250} 1838}
1251 1839
1252inline_size void 1840inline_speed void
1253evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1841evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1254{ 1842{
1255 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)
1256 { 1855 {
1856 int old_errno;
1857
1858 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1859
1257 int old_errno = errno; /* save errno because write might clobber it */ 1860 old_errno = errno; /* save errno because write will clobber it */
1258
1259 *flag = 1;
1260 1861
1261#if EV_USE_EVENTFD 1862#if EV_USE_EVENTFD
1262 if (evfd >= 0) 1863 if (evfd >= 0)
1263 { 1864 {
1264 uint64_t counter = 1; 1865 uint64_t counter = 1;
1265 write (evfd, &counter, sizeof (uint64_t)); 1866 write (evfd, &counter, sizeof (uint64_t));
1266 } 1867 }
1267 else 1868 else
1268#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. */
1269 write (evpipe [1], &old_errno, 1); 1876 write (evpipe [1], &(evpipe [1]), 1);
1877 }
1270 1878
1271 errno = old_errno; 1879 errno = old_errno;
1272 } 1880 }
1273} 1881}
1274 1882
… …
1277static void 1885static void
1278pipecb (EV_P_ ev_io *iow, int revents) 1886pipecb (EV_P_ ev_io *iow, int revents)
1279{ 1887{
1280 int i; 1888 int i;
1281 1889
1890 if (revents & EV_READ)
1891 {
1282#if EV_USE_EVENTFD 1892#if EV_USE_EVENTFD
1283 if (evfd >= 0) 1893 if (evfd >= 0)
1284 { 1894 {
1285 uint64_t counter; 1895 uint64_t counter;
1286 read (evfd, &counter, sizeof (uint64_t)); 1896 read (evfd, &counter, sizeof (uint64_t));
1287 } 1897 }
1288 else 1898 else
1289#endif 1899#endif
1290 { 1900 {
1291 char dummy; 1901 char dummy;
1902 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1292 read (evpipe [0], &dummy, 1); 1903 read (evpipe [0], &dummy, 1);
1904 }
1293 } 1905 }
1294 1906
1907 pipe_write_skipped = 0;
1908
1909#if EV_SIGNAL_ENABLE
1295 if (sig_pending) 1910 if (sig_pending)
1296 { 1911 {
1297 sig_pending = 0; 1912 sig_pending = 0;
1298 1913
1299 for (i = EV_NSIG - 1; i--; ) 1914 for (i = EV_NSIG - 1; i--; )
1300 if (expect_false (signals [i].pending)) 1915 if (expect_false (signals [i].pending))
1301 ev_feed_signal_event (EV_A_ i + 1); 1916 ev_feed_signal_event (EV_A_ i + 1);
1302 } 1917 }
1918#endif
1303 1919
1304#if EV_ASYNC_ENABLE 1920#if EV_ASYNC_ENABLE
1305 if (async_pending) 1921 if (async_pending)
1306 { 1922 {
1307 async_pending = 0; 1923 async_pending = 0;
… …
1316#endif 1932#endif
1317} 1933}
1318 1934
1319/*****************************************************************************/ 1935/*****************************************************************************/
1320 1936
1937void
1938ev_feed_signal (int signum)
1939{
1940#if EV_MULTIPLICITY
1941 EV_P = signals [signum - 1].loop;
1942
1943 if (!EV_A)
1944 return;
1945#endif
1946
1947 if (!ev_active (&pipe_w))
1948 return;
1949
1950 signals [signum - 1].pending = 1;
1951 evpipe_write (EV_A_ &sig_pending);
1952}
1953
1321static void 1954static void
1322ev_sighandler (int signum) 1955ev_sighandler (int signum)
1323{ 1956{
1324#if EV_MULTIPLICITY
1325 EV_P = signals [signum - 1].loop;
1326#endif
1327
1328#ifdef _WIN32 1957#ifdef _WIN32
1329 signal (signum, ev_sighandler); 1958 signal (signum, ev_sighandler);
1330#endif 1959#endif
1331 1960
1332 signals [signum - 1].pending = 1; 1961 ev_feed_signal (signum);
1333 evpipe_write (EV_A_ &sig_pending);
1334} 1962}
1335 1963
1336void noinline 1964void noinline
1337ev_feed_signal_event (EV_P_ int signum) 1965ev_feed_signal_event (EV_P_ int signum)
1338{ 1966{
… …
1375 break; 2003 break;
1376 } 2004 }
1377} 2005}
1378#endif 2006#endif
1379 2007
2008#endif
2009
1380/*****************************************************************************/ 2010/*****************************************************************************/
1381 2011
2012#if EV_CHILD_ENABLE
1382static WL childs [EV_PID_HASHSIZE]; 2013static WL childs [EV_PID_HASHSIZE];
1383
1384#ifndef _WIN32
1385 2014
1386static ev_signal childev; 2015static ev_signal childev;
1387 2016
1388#ifndef WIFCONTINUED 2017#ifndef WIFCONTINUED
1389# define WIFCONTINUED(status) 0 2018# define WIFCONTINUED(status) 0
… …
1394child_reap (EV_P_ int chain, int pid, int status) 2023child_reap (EV_P_ int chain, int pid, int status)
1395{ 2024{
1396 ev_child *w; 2025 ev_child *w;
1397 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2026 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1398 2027
1399 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2028 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1400 { 2029 {
1401 if ((w->pid == pid || !w->pid) 2030 if ((w->pid == pid || !w->pid)
1402 && (!traced || (w->flags & 1))) 2031 && (!traced || (w->flags & 1)))
1403 { 2032 {
1404 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2033 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1429 /* make sure we are called again until all children have been reaped */ 2058 /* make sure we are called again until all children have been reaped */
1430 /* we need to do it this way so that the callback gets called before we continue */ 2059 /* we need to do it this way so that the callback gets called before we continue */
1431 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2060 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1432 2061
1433 child_reap (EV_A_ pid, pid, status); 2062 child_reap (EV_A_ pid, pid, status);
1434 if (EV_PID_HASHSIZE > 1) 2063 if ((EV_PID_HASHSIZE) > 1)
1435 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2064 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1436} 2065}
1437 2066
1438#endif 2067#endif
1439 2068
1440/*****************************************************************************/ 2069/*****************************************************************************/
1441 2070
2071#if EV_USE_IOCP
2072# include "ev_iocp.c"
2073#endif
1442#if EV_USE_PORT 2074#if EV_USE_PORT
1443# include "ev_port.c" 2075# include "ev_port.c"
1444#endif 2076#endif
1445#if EV_USE_KQUEUE 2077#if EV_USE_KQUEUE
1446# include "ev_kqueue.c" 2078# include "ev_kqueue.c"
… …
1453#endif 2085#endif
1454#if EV_USE_SELECT 2086#if EV_USE_SELECT
1455# include "ev_select.c" 2087# include "ev_select.c"
1456#endif 2088#endif
1457 2089
1458int 2090int ecb_cold
1459ev_version_major (void) 2091ev_version_major (void)
1460{ 2092{
1461 return EV_VERSION_MAJOR; 2093 return EV_VERSION_MAJOR;
1462} 2094}
1463 2095
1464int 2096int ecb_cold
1465ev_version_minor (void) 2097ev_version_minor (void)
1466{ 2098{
1467 return EV_VERSION_MINOR; 2099 return EV_VERSION_MINOR;
1468} 2100}
1469 2101
1470/* return true if we are running with elevated privileges and should ignore env variables */ 2102/* return true if we are running with elevated privileges and should ignore env variables */
1471int inline_size 2103int inline_size ecb_cold
1472enable_secure (void) 2104enable_secure (void)
1473{ 2105{
1474#ifdef _WIN32 2106#ifdef _WIN32
1475 return 0; 2107 return 0;
1476#else 2108#else
1477 return getuid () != geteuid () 2109 return getuid () != geteuid ()
1478 || getgid () != getegid (); 2110 || getgid () != getegid ();
1479#endif 2111#endif
1480} 2112}
1481 2113
1482unsigned int 2114unsigned int ecb_cold
1483ev_supported_backends (void) 2115ev_supported_backends (void)
1484{ 2116{
1485 unsigned int flags = 0; 2117 unsigned int flags = 0;
1486 2118
1487 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2119 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1491 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2123 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1492 2124
1493 return flags; 2125 return flags;
1494} 2126}
1495 2127
1496unsigned int 2128unsigned int ecb_cold
1497ev_recommended_backends (void) 2129ev_recommended_backends (void)
1498{ 2130{
1499 unsigned int flags = ev_supported_backends (); 2131 unsigned int flags = ev_supported_backends ();
1500 2132
1501#ifndef __NetBSD__ 2133#ifndef __NetBSD__
… …
1506#ifdef __APPLE__ 2138#ifdef __APPLE__
1507 /* only select works correctly on that "unix-certified" platform */ 2139 /* only select works correctly on that "unix-certified" platform */
1508 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2140 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1509 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2141 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1510#endif 2142#endif
2143#ifdef __FreeBSD__
2144 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2145#endif
1511 2146
1512 return flags; 2147 return flags;
1513} 2148}
1514 2149
1515unsigned int 2150unsigned int ecb_cold
1516ev_embeddable_backends (void) 2151ev_embeddable_backends (void)
1517{ 2152{
1518 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2153 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1519 2154
1520 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2155 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1521 /* please fix it and tell me how to detect the fix */ 2156 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1522 flags &= ~EVBACKEND_EPOLL; 2157 flags &= ~EVBACKEND_EPOLL;
1523 2158
1524 return flags; 2159 return flags;
1525} 2160}
1526 2161
1527unsigned int 2162unsigned int
1528ev_backend (EV_P) 2163ev_backend (EV_P)
1529{ 2164{
1530 return backend; 2165 return backend;
1531} 2166}
1532 2167
1533#if EV_MINIMAL < 2 2168#if EV_FEATURE_API
1534unsigned int 2169unsigned int
1535ev_loop_count (EV_P) 2170ev_iteration (EV_P)
1536{ 2171{
1537 return loop_count; 2172 return loop_count;
1538} 2173}
1539 2174
1540unsigned int 2175unsigned int
1541ev_loop_depth (EV_P) 2176ev_depth (EV_P)
1542{ 2177{
1543 return loop_depth; 2178 return loop_depth;
1544} 2179}
1545 2180
1546void 2181void
… …
1565ev_userdata (EV_P) 2200ev_userdata (EV_P)
1566{ 2201{
1567 return userdata; 2202 return userdata;
1568} 2203}
1569 2204
2205void
1570void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2206ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1571{ 2207{
1572 invoke_cb = invoke_pending_cb; 2208 invoke_cb = invoke_pending_cb;
1573} 2209}
1574 2210
2211void
1575void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2212ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1576{ 2213{
1577 release_cb = release; 2214 release_cb = release;
1578 acquire_cb = acquire; 2215 acquire_cb = acquire;
1579} 2216}
1580#endif 2217#endif
1581 2218
1582/* initialise a loop structure, must be zero-initialised */ 2219/* initialise a loop structure, must be zero-initialised */
1583static void noinline 2220static void noinline ecb_cold
1584loop_init (EV_P_ unsigned int flags) 2221loop_init (EV_P_ unsigned int flags)
1585{ 2222{
1586 if (!backend) 2223 if (!backend)
1587 { 2224 {
2225 origflags = flags;
2226
1588#if EV_USE_REALTIME 2227#if EV_USE_REALTIME
1589 if (!have_realtime) 2228 if (!have_realtime)
1590 { 2229 {
1591 struct timespec ts; 2230 struct timespec ts;
1592 2231
… …
1614 if (!(flags & EVFLAG_NOENV) 2253 if (!(flags & EVFLAG_NOENV)
1615 && !enable_secure () 2254 && !enable_secure ()
1616 && getenv ("LIBEV_FLAGS")) 2255 && getenv ("LIBEV_FLAGS"))
1617 flags = atoi (getenv ("LIBEV_FLAGS")); 2256 flags = atoi (getenv ("LIBEV_FLAGS"));
1618 2257
1619 ev_rt_now = ev_time (); 2258 ev_rt_now = ev_time ();
1620 mn_now = get_clock (); 2259 mn_now = get_clock ();
1621 now_floor = mn_now; 2260 now_floor = mn_now;
1622 rtmn_diff = ev_rt_now - mn_now; 2261 rtmn_diff = ev_rt_now - mn_now;
1623#if EV_MINIMAL < 2 2262#if EV_FEATURE_API
1624 invoke_cb = ev_invoke_pending; 2263 invoke_cb = ev_invoke_pending;
1625#endif 2264#endif
1626 2265
1627 io_blocktime = 0.; 2266 io_blocktime = 0.;
1628 timeout_blocktime = 0.; 2267 timeout_blocktime = 0.;
1629 backend = 0; 2268 backend = 0;
1630 backend_fd = -1; 2269 backend_fd = -1;
1631 sig_pending = 0; 2270 sig_pending = 0;
1632#if EV_ASYNC_ENABLE 2271#if EV_ASYNC_ENABLE
1633 async_pending = 0; 2272 async_pending = 0;
1634#endif 2273#endif
2274 pipe_write_skipped = 0;
2275 pipe_write_wanted = 0;
1635#if EV_USE_INOTIFY 2276#if EV_USE_INOTIFY
1636 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2277 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1637#endif 2278#endif
1638#if EV_USE_SIGNALFD 2279#if EV_USE_SIGNALFD
1639 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2280 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1640#endif 2281#endif
1641 2282
1642 if (!(flags & 0x0000ffffU)) 2283 if (!(flags & EVBACKEND_MASK))
1643 flags |= ev_recommended_backends (); 2284 flags |= ev_recommended_backends ();
1644 2285
2286#if EV_USE_IOCP
2287 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2288#endif
1645#if EV_USE_PORT 2289#if EV_USE_PORT
1646 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2290 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1647#endif 2291#endif
1648#if EV_USE_KQUEUE 2292#if EV_USE_KQUEUE
1649 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2293 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1658 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2302 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1659#endif 2303#endif
1660 2304
1661 ev_prepare_init (&pending_w, pendingcb); 2305 ev_prepare_init (&pending_w, pendingcb);
1662 2306
2307#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1663 ev_init (&pipe_w, pipecb); 2308 ev_init (&pipe_w, pipecb);
1664 ev_set_priority (&pipe_w, EV_MAXPRI); 2309 ev_set_priority (&pipe_w, EV_MAXPRI);
2310#endif
1665 } 2311 }
1666} 2312}
1667 2313
1668/* free up a loop structure */ 2314/* free up a loop structure */
1669static void noinline 2315void ecb_cold
1670loop_destroy (EV_P) 2316ev_loop_destroy (EV_P)
1671{ 2317{
1672 int i; 2318 int i;
2319
2320#if EV_MULTIPLICITY
2321 /* mimic free (0) */
2322 if (!EV_A)
2323 return;
2324#endif
2325
2326#if EV_CLEANUP_ENABLE
2327 /* queue cleanup watchers (and execute them) */
2328 if (expect_false (cleanupcnt))
2329 {
2330 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2331 EV_INVOKE_PENDING;
2332 }
2333#endif
2334
2335#if EV_CHILD_ENABLE
2336 if (ev_is_active (&childev))
2337 {
2338 ev_ref (EV_A); /* child watcher */
2339 ev_signal_stop (EV_A_ &childev);
2340 }
2341#endif
1673 2342
1674 if (ev_is_active (&pipe_w)) 2343 if (ev_is_active (&pipe_w))
1675 { 2344 {
1676 /*ev_ref (EV_A);*/ 2345 /*ev_ref (EV_A);*/
1677 /*ev_io_stop (EV_A_ &pipe_w);*/ 2346 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1699#endif 2368#endif
1700 2369
1701 if (backend_fd >= 0) 2370 if (backend_fd >= 0)
1702 close (backend_fd); 2371 close (backend_fd);
1703 2372
2373#if EV_USE_IOCP
2374 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2375#endif
1704#if EV_USE_PORT 2376#if EV_USE_PORT
1705 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2377 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1706#endif 2378#endif
1707#if EV_USE_KQUEUE 2379#if EV_USE_KQUEUE
1708 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2380 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1735 array_free (periodic, EMPTY); 2407 array_free (periodic, EMPTY);
1736#endif 2408#endif
1737#if EV_FORK_ENABLE 2409#if EV_FORK_ENABLE
1738 array_free (fork, EMPTY); 2410 array_free (fork, EMPTY);
1739#endif 2411#endif
2412#if EV_CLEANUP_ENABLE
2413 array_free (cleanup, EMPTY);
2414#endif
1740 array_free (prepare, EMPTY); 2415 array_free (prepare, EMPTY);
1741 array_free (check, EMPTY); 2416 array_free (check, EMPTY);
1742#if EV_ASYNC_ENABLE 2417#if EV_ASYNC_ENABLE
1743 array_free (async, EMPTY); 2418 array_free (async, EMPTY);
1744#endif 2419#endif
1745 2420
1746 backend = 0; 2421 backend = 0;
2422
2423#if EV_MULTIPLICITY
2424 if (ev_is_default_loop (EV_A))
2425#endif
2426 ev_default_loop_ptr = 0;
2427#if EV_MULTIPLICITY
2428 else
2429 ev_free (EV_A);
2430#endif
1747} 2431}
1748 2432
1749#if EV_USE_INOTIFY 2433#if EV_USE_INOTIFY
1750inline_size void infy_fork (EV_P); 2434inline_size void infy_fork (EV_P);
1751#endif 2435#endif
… …
1766 infy_fork (EV_A); 2450 infy_fork (EV_A);
1767#endif 2451#endif
1768 2452
1769 if (ev_is_active (&pipe_w)) 2453 if (ev_is_active (&pipe_w))
1770 { 2454 {
1771 /* this "locks" the handlers against writing to the pipe */ 2455 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1772 /* while we modify the fd vars */
1773 sig_pending = 1;
1774#if EV_ASYNC_ENABLE
1775 async_pending = 1;
1776#endif
1777 2456
1778 ev_ref (EV_A); 2457 ev_ref (EV_A);
1779 ev_io_stop (EV_A_ &pipe_w); 2458 ev_io_stop (EV_A_ &pipe_w);
1780 2459
1781#if EV_USE_EVENTFD 2460#if EV_USE_EVENTFD
… …
1787 { 2466 {
1788 EV_WIN32_CLOSE_FD (evpipe [0]); 2467 EV_WIN32_CLOSE_FD (evpipe [0]);
1789 EV_WIN32_CLOSE_FD (evpipe [1]); 2468 EV_WIN32_CLOSE_FD (evpipe [1]);
1790 } 2469 }
1791 2470
2471#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1792 evpipe_init (EV_A); 2472 evpipe_init (EV_A);
1793 /* now iterate over everything, in case we missed something */ 2473 /* now iterate over everything, in case we missed something */
1794 pipecb (EV_A_ &pipe_w, EV_READ); 2474 pipecb (EV_A_ &pipe_w, EV_READ);
2475#endif
1795 } 2476 }
1796 2477
1797 postfork = 0; 2478 postfork = 0;
1798} 2479}
1799 2480
1800#if EV_MULTIPLICITY 2481#if EV_MULTIPLICITY
1801 2482
1802struct ev_loop * 2483struct ev_loop * ecb_cold
1803ev_loop_new (unsigned int flags) 2484ev_loop_new (unsigned int flags)
1804{ 2485{
1805 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2486 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1806 2487
1807 memset (EV_A, 0, sizeof (struct ev_loop)); 2488 memset (EV_A, 0, sizeof (struct ev_loop));
1808 loop_init (EV_A_ flags); 2489 loop_init (EV_A_ flags);
1809 2490
1810 if (ev_backend (EV_A)) 2491 if (ev_backend (EV_A))
1811 return EV_A; 2492 return EV_A;
1812 2493
2494 ev_free (EV_A);
1813 return 0; 2495 return 0;
1814} 2496}
1815 2497
1816void
1817ev_loop_destroy (EV_P)
1818{
1819 loop_destroy (EV_A);
1820 ev_free (loop);
1821}
1822
1823void
1824ev_loop_fork (EV_P)
1825{
1826 postfork = 1; /* must be in line with ev_default_fork */
1827}
1828#endif /* multiplicity */ 2498#endif /* multiplicity */
1829 2499
1830#if EV_VERIFY 2500#if EV_VERIFY
1831static void noinline 2501static void noinline ecb_cold
1832verify_watcher (EV_P_ W w) 2502verify_watcher (EV_P_ W w)
1833{ 2503{
1834 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2504 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1835 2505
1836 if (w->pending) 2506 if (w->pending)
1837 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2507 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1838} 2508}
1839 2509
1840static void noinline 2510static void noinline ecb_cold
1841verify_heap (EV_P_ ANHE *heap, int N) 2511verify_heap (EV_P_ ANHE *heap, int N)
1842{ 2512{
1843 int i; 2513 int i;
1844 2514
1845 for (i = HEAP0; i < N + HEAP0; ++i) 2515 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1850 2520
1851 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2521 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1852 } 2522 }
1853} 2523}
1854 2524
1855static void noinline 2525static void noinline ecb_cold
1856array_verify (EV_P_ W *ws, int cnt) 2526array_verify (EV_P_ W *ws, int cnt)
1857{ 2527{
1858 while (cnt--) 2528 while (cnt--)
1859 { 2529 {
1860 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2530 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1861 verify_watcher (EV_A_ ws [cnt]); 2531 verify_watcher (EV_A_ ws [cnt]);
1862 } 2532 }
1863} 2533}
1864#endif 2534#endif
1865 2535
1866#if EV_MINIMAL < 2 2536#if EV_FEATURE_API
1867void 2537void ecb_cold
1868ev_loop_verify (EV_P) 2538ev_verify (EV_P)
1869{ 2539{
1870#if EV_VERIFY 2540#if EV_VERIFY
1871 int i; 2541 int i;
1872 WL w; 2542 WL w;
1873 2543
… …
1907#if EV_FORK_ENABLE 2577#if EV_FORK_ENABLE
1908 assert (forkmax >= forkcnt); 2578 assert (forkmax >= forkcnt);
1909 array_verify (EV_A_ (W *)forks, forkcnt); 2579 array_verify (EV_A_ (W *)forks, forkcnt);
1910#endif 2580#endif
1911 2581
2582#if EV_CLEANUP_ENABLE
2583 assert (cleanupmax >= cleanupcnt);
2584 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2585#endif
2586
1912#if EV_ASYNC_ENABLE 2587#if EV_ASYNC_ENABLE
1913 assert (asyncmax >= asynccnt); 2588 assert (asyncmax >= asynccnt);
1914 array_verify (EV_A_ (W *)asyncs, asynccnt); 2589 array_verify (EV_A_ (W *)asyncs, asynccnt);
1915#endif 2590#endif
1916 2591
2592#if EV_PREPARE_ENABLE
1917 assert (preparemax >= preparecnt); 2593 assert (preparemax >= preparecnt);
1918 array_verify (EV_A_ (W *)prepares, preparecnt); 2594 array_verify (EV_A_ (W *)prepares, preparecnt);
2595#endif
1919 2596
2597#if EV_CHECK_ENABLE
1920 assert (checkmax >= checkcnt); 2598 assert (checkmax >= checkcnt);
1921 array_verify (EV_A_ (W *)checks, checkcnt); 2599 array_verify (EV_A_ (W *)checks, checkcnt);
2600#endif
1922 2601
1923# if 0 2602# if 0
2603#if EV_CHILD_ENABLE
1924 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2604 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1925 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2605 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2606#endif
1926# endif 2607# endif
1927#endif 2608#endif
1928} 2609}
1929#endif 2610#endif
1930 2611
1931#if EV_MULTIPLICITY 2612#if EV_MULTIPLICITY
1932struct ev_loop * 2613struct ev_loop * ecb_cold
1933ev_default_loop_init (unsigned int flags)
1934#else 2614#else
1935int 2615int
2616#endif
1936ev_default_loop (unsigned int flags) 2617ev_default_loop (unsigned int flags)
1937#endif
1938{ 2618{
1939 if (!ev_default_loop_ptr) 2619 if (!ev_default_loop_ptr)
1940 { 2620 {
1941#if EV_MULTIPLICITY 2621#if EV_MULTIPLICITY
1942 EV_P = ev_default_loop_ptr = &default_loop_struct; 2622 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1946 2626
1947 loop_init (EV_A_ flags); 2627 loop_init (EV_A_ flags);
1948 2628
1949 if (ev_backend (EV_A)) 2629 if (ev_backend (EV_A))
1950 { 2630 {
1951#ifndef _WIN32 2631#if EV_CHILD_ENABLE
1952 ev_signal_init (&childev, childcb, SIGCHLD); 2632 ev_signal_init (&childev, childcb, SIGCHLD);
1953 ev_set_priority (&childev, EV_MAXPRI); 2633 ev_set_priority (&childev, EV_MAXPRI);
1954 ev_signal_start (EV_A_ &childev); 2634 ev_signal_start (EV_A_ &childev);
1955 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2635 ev_unref (EV_A); /* child watcher should not keep loop alive */
1956#endif 2636#endif
… …
1961 2641
1962 return ev_default_loop_ptr; 2642 return ev_default_loop_ptr;
1963} 2643}
1964 2644
1965void 2645void
1966ev_default_destroy (void) 2646ev_loop_fork (EV_P)
1967{ 2647{
1968#if EV_MULTIPLICITY
1969 EV_P = ev_default_loop_ptr;
1970#endif
1971
1972 ev_default_loop_ptr = 0;
1973
1974#ifndef _WIN32
1975 ev_ref (EV_A); /* child watcher */
1976 ev_signal_stop (EV_A_ &childev);
1977#endif
1978
1979 loop_destroy (EV_A);
1980}
1981
1982void
1983ev_default_fork (void)
1984{
1985#if EV_MULTIPLICITY
1986 EV_P = ev_default_loop_ptr;
1987#endif
1988
1989 postfork = 1; /* must be in line with ev_loop_fork */ 2648 postfork = 1; /* must be in line with ev_default_fork */
1990} 2649}
1991 2650
1992/*****************************************************************************/ 2651/*****************************************************************************/
1993 2652
1994void 2653void
… …
2016 2675
2017 for (pri = NUMPRI; pri--; ) 2676 for (pri = NUMPRI; pri--; )
2018 while (pendingcnt [pri]) 2677 while (pendingcnt [pri])
2019 { 2678 {
2020 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2679 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2021
2022 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2023 /* ^ this is no longer true, as pending_w could be here */
2024 2680
2025 p->w->pending = 0; 2681 p->w->pending = 0;
2026 EV_CB_INVOKE (p->w, p->events); 2682 EV_CB_INVOKE (p->w, p->events);
2027 EV_FREQUENT_CHECK; 2683 EV_FREQUENT_CHECK;
2028 } 2684 }
… …
2085 EV_FREQUENT_CHECK; 2741 EV_FREQUENT_CHECK;
2086 feed_reverse (EV_A_ (W)w); 2742 feed_reverse (EV_A_ (W)w);
2087 } 2743 }
2088 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2744 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2089 2745
2090 feed_reverse_done (EV_A_ EV_TIMEOUT); 2746 feed_reverse_done (EV_A_ EV_TIMER);
2091 } 2747 }
2092} 2748}
2093 2749
2094#if EV_PERIODIC_ENABLE 2750#if EV_PERIODIC_ENABLE
2751
2752static void noinline
2753periodic_recalc (EV_P_ ev_periodic *w)
2754{
2755 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2756 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2757
2758 /* the above almost always errs on the low side */
2759 while (at <= ev_rt_now)
2760 {
2761 ev_tstamp nat = at + w->interval;
2762
2763 /* when resolution fails us, we use ev_rt_now */
2764 if (expect_false (nat == at))
2765 {
2766 at = ev_rt_now;
2767 break;
2768 }
2769
2770 at = nat;
2771 }
2772
2773 ev_at (w) = at;
2774}
2775
2095/* make periodics pending */ 2776/* make periodics pending */
2096inline_size void 2777inline_size void
2097periodics_reify (EV_P) 2778periodics_reify (EV_P)
2098{ 2779{
2099 EV_FREQUENT_CHECK; 2780 EV_FREQUENT_CHECK;
… …
2118 ANHE_at_cache (periodics [HEAP0]); 2799 ANHE_at_cache (periodics [HEAP0]);
2119 downheap (periodics, periodiccnt, HEAP0); 2800 downheap (periodics, periodiccnt, HEAP0);
2120 } 2801 }
2121 else if (w->interval) 2802 else if (w->interval)
2122 { 2803 {
2123 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2804 periodic_recalc (EV_A_ w);
2124 /* if next trigger time is not sufficiently in the future, put it there */
2125 /* this might happen because of floating point inexactness */
2126 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2127 {
2128 ev_at (w) += w->interval;
2129
2130 /* if interval is unreasonably low we might still have a time in the past */
2131 /* so correct this. this will make the periodic very inexact, but the user */
2132 /* has effectively asked to get triggered more often than possible */
2133 if (ev_at (w) < ev_rt_now)
2134 ev_at (w) = ev_rt_now;
2135 }
2136
2137 ANHE_at_cache (periodics [HEAP0]); 2805 ANHE_at_cache (periodics [HEAP0]);
2138 downheap (periodics, periodiccnt, HEAP0); 2806 downheap (periodics, periodiccnt, HEAP0);
2139 } 2807 }
2140 else 2808 else
2141 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2809 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2148 feed_reverse_done (EV_A_ EV_PERIODIC); 2816 feed_reverse_done (EV_A_ EV_PERIODIC);
2149 } 2817 }
2150} 2818}
2151 2819
2152/* simply recalculate all periodics */ 2820/* simply recalculate all periodics */
2153/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2821/* TODO: maybe ensure that at least one event happens when jumping forward? */
2154static void noinline 2822static void noinline ecb_cold
2155periodics_reschedule (EV_P) 2823periodics_reschedule (EV_P)
2156{ 2824{
2157 int i; 2825 int i;
2158 2826
2159 /* adjust periodics after time jump */ 2827 /* adjust periodics after time jump */
… …
2162 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2830 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2163 2831
2164 if (w->reschedule_cb) 2832 if (w->reschedule_cb)
2165 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2833 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2166 else if (w->interval) 2834 else if (w->interval)
2167 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2835 periodic_recalc (EV_A_ w);
2168 2836
2169 ANHE_at_cache (periodics [i]); 2837 ANHE_at_cache (periodics [i]);
2170 } 2838 }
2171 2839
2172 reheap (periodics, periodiccnt); 2840 reheap (periodics, periodiccnt);
2173} 2841}
2174#endif 2842#endif
2175 2843
2176/* adjust all timers by a given offset */ 2844/* adjust all timers by a given offset */
2177static void noinline 2845static void noinline ecb_cold
2178timers_reschedule (EV_P_ ev_tstamp adjust) 2846timers_reschedule (EV_P_ ev_tstamp adjust)
2179{ 2847{
2180 int i; 2848 int i;
2181 2849
2182 for (i = 0; i < timercnt; ++i) 2850 for (i = 0; i < timercnt; ++i)
… …
2219 * doesn't hurt either as we only do this on time-jumps or 2887 * doesn't hurt either as we only do this on time-jumps or
2220 * in the unlikely event of having been preempted here. 2888 * in the unlikely event of having been preempted here.
2221 */ 2889 */
2222 for (i = 4; --i; ) 2890 for (i = 4; --i; )
2223 { 2891 {
2892 ev_tstamp diff;
2224 rtmn_diff = ev_rt_now - mn_now; 2893 rtmn_diff = ev_rt_now - mn_now;
2225 2894
2895 diff = odiff - rtmn_diff;
2896
2226 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2897 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2227 return; /* all is well */ 2898 return; /* all is well */
2228 2899
2229 ev_rt_now = ev_time (); 2900 ev_rt_now = ev_time ();
2230 mn_now = get_clock (); 2901 mn_now = get_clock ();
2231 now_floor = mn_now; 2902 now_floor = mn_now;
… …
2254 mn_now = ev_rt_now; 2925 mn_now = ev_rt_now;
2255 } 2926 }
2256} 2927}
2257 2928
2258void 2929void
2259ev_loop (EV_P_ int flags) 2930ev_run (EV_P_ int flags)
2260{ 2931{
2261#if EV_MINIMAL < 2 2932#if EV_FEATURE_API
2262 ++loop_depth; 2933 ++loop_depth;
2263#endif 2934#endif
2264 2935
2265 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2936 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2266 2937
2267 loop_done = EVUNLOOP_CANCEL; 2938 loop_done = EVBREAK_CANCEL;
2268 2939
2269 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2940 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2270 2941
2271 do 2942 do
2272 { 2943 {
2273#if EV_VERIFY >= 2 2944#if EV_VERIFY >= 2
2274 ev_loop_verify (EV_A); 2945 ev_verify (EV_A);
2275#endif 2946#endif
2276 2947
2277#ifndef _WIN32 2948#ifndef _WIN32
2278 if (expect_false (curpid)) /* penalise the forking check even more */ 2949 if (expect_false (curpid)) /* penalise the forking check even more */
2279 if (expect_false (getpid () != curpid)) 2950 if (expect_false (getpid () != curpid))
… …
2291 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2962 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2292 EV_INVOKE_PENDING; 2963 EV_INVOKE_PENDING;
2293 } 2964 }
2294#endif 2965#endif
2295 2966
2967#if EV_PREPARE_ENABLE
2296 /* queue prepare watchers (and execute them) */ 2968 /* queue prepare watchers (and execute them) */
2297 if (expect_false (preparecnt)) 2969 if (expect_false (preparecnt))
2298 { 2970 {
2299 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2971 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2300 EV_INVOKE_PENDING; 2972 EV_INVOKE_PENDING;
2301 } 2973 }
2974#endif
2302 2975
2303 if (expect_false (loop_done)) 2976 if (expect_false (loop_done))
2304 break; 2977 break;
2305 2978
2306 /* we might have forked, so reify kernel state if necessary */ 2979 /* we might have forked, so reify kernel state if necessary */
… …
2313 /* calculate blocking time */ 2986 /* calculate blocking time */
2314 { 2987 {
2315 ev_tstamp waittime = 0.; 2988 ev_tstamp waittime = 0.;
2316 ev_tstamp sleeptime = 0.; 2989 ev_tstamp sleeptime = 0.;
2317 2990
2991 /* remember old timestamp for io_blocktime calculation */
2992 ev_tstamp prev_mn_now = mn_now;
2993
2994 /* update time to cancel out callback processing overhead */
2995 time_update (EV_A_ 1e100);
2996
2997 /* from now on, we want a pipe-wake-up */
2998 pipe_write_wanted = 1;
2999
3000 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3001
2318 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3002 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2319 { 3003 {
2320 /* remember old timestamp for io_blocktime calculation */
2321 ev_tstamp prev_mn_now = mn_now;
2322
2323 /* update time to cancel out callback processing overhead */
2324 time_update (EV_A_ 1e100);
2325
2326 waittime = MAX_BLOCKTIME; 3004 waittime = MAX_BLOCKTIME;
2327 3005
2328 if (timercnt) 3006 if (timercnt)
2329 { 3007 {
2330 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3008 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2331 if (waittime > to) waittime = to; 3009 if (waittime > to) waittime = to;
2332 } 3010 }
2333 3011
2334#if EV_PERIODIC_ENABLE 3012#if EV_PERIODIC_ENABLE
2335 if (periodiccnt) 3013 if (periodiccnt)
2336 { 3014 {
2337 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3015 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2338 if (waittime > to) waittime = to; 3016 if (waittime > to) waittime = to;
2339 } 3017 }
2340#endif 3018#endif
2341 3019
2342 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3020 /* don't let timeouts decrease the waittime below timeout_blocktime */
2343 if (expect_false (waittime < timeout_blocktime)) 3021 if (expect_false (waittime < timeout_blocktime))
2344 waittime = timeout_blocktime; 3022 waittime = timeout_blocktime;
3023
3024 /* at this point, we NEED to wait, so we have to ensure */
3025 /* to pass a minimum nonzero value to the backend */
3026 if (expect_false (waittime < backend_mintime))
3027 waittime = backend_mintime;
2345 3028
2346 /* extra check because io_blocktime is commonly 0 */ 3029 /* extra check because io_blocktime is commonly 0 */
2347 if (expect_false (io_blocktime)) 3030 if (expect_false (io_blocktime))
2348 { 3031 {
2349 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3032 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2350 3033
2351 if (sleeptime > waittime - backend_fudge) 3034 if (sleeptime > waittime - backend_mintime)
2352 sleeptime = waittime - backend_fudge; 3035 sleeptime = waittime - backend_mintime;
2353 3036
2354 if (expect_true (sleeptime > 0.)) 3037 if (expect_true (sleeptime > 0.))
2355 { 3038 {
2356 ev_sleep (sleeptime); 3039 ev_sleep (sleeptime);
2357 waittime -= sleeptime; 3040 waittime -= sleeptime;
2358 } 3041 }
2359 } 3042 }
2360 } 3043 }
2361 3044
2362#if EV_MINIMAL < 2 3045#if EV_FEATURE_API
2363 ++loop_count; 3046 ++loop_count;
2364#endif 3047#endif
2365 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3048 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2366 backend_poll (EV_A_ waittime); 3049 backend_poll (EV_A_ waittime);
2367 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3050 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3051
3052 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3053
3054 if (pipe_write_skipped)
3055 {
3056 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3057 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3058 }
3059
2368 3060
2369 /* update ev_rt_now, do magic */ 3061 /* update ev_rt_now, do magic */
2370 time_update (EV_A_ waittime + sleeptime); 3062 time_update (EV_A_ waittime + sleeptime);
2371 } 3063 }
2372 3064
… …
2379#if EV_IDLE_ENABLE 3071#if EV_IDLE_ENABLE
2380 /* queue idle watchers unless other events are pending */ 3072 /* queue idle watchers unless other events are pending */
2381 idle_reify (EV_A); 3073 idle_reify (EV_A);
2382#endif 3074#endif
2383 3075
3076#if EV_CHECK_ENABLE
2384 /* queue check watchers, to be executed first */ 3077 /* queue check watchers, to be executed first */
2385 if (expect_false (checkcnt)) 3078 if (expect_false (checkcnt))
2386 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3079 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3080#endif
2387 3081
2388 EV_INVOKE_PENDING; 3082 EV_INVOKE_PENDING;
2389 } 3083 }
2390 while (expect_true ( 3084 while (expect_true (
2391 activecnt 3085 activecnt
2392 && !loop_done 3086 && !loop_done
2393 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3087 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2394 )); 3088 ));
2395 3089
2396 if (loop_done == EVUNLOOP_ONE) 3090 if (loop_done == EVBREAK_ONE)
2397 loop_done = EVUNLOOP_CANCEL; 3091 loop_done = EVBREAK_CANCEL;
2398 3092
2399#if EV_MINIMAL < 2 3093#if EV_FEATURE_API
2400 --loop_depth; 3094 --loop_depth;
2401#endif 3095#endif
2402} 3096}
2403 3097
2404void 3098void
2405ev_unloop (EV_P_ int how) 3099ev_break (EV_P_ int how)
2406{ 3100{
2407 loop_done = how; 3101 loop_done = how;
2408} 3102}
2409 3103
2410void 3104void
… …
2558 EV_FREQUENT_CHECK; 3252 EV_FREQUENT_CHECK;
2559 3253
2560 wlist_del (&anfds[w->fd].head, (WL)w); 3254 wlist_del (&anfds[w->fd].head, (WL)w);
2561 ev_stop (EV_A_ (W)w); 3255 ev_stop (EV_A_ (W)w);
2562 3256
2563 fd_change (EV_A_ w->fd, 1); 3257 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2564 3258
2565 EV_FREQUENT_CHECK; 3259 EV_FREQUENT_CHECK;
2566} 3260}
2567 3261
2568void noinline 3262void noinline
… …
2621 3315
2622void noinline 3316void noinline
2623ev_timer_again (EV_P_ ev_timer *w) 3317ev_timer_again (EV_P_ ev_timer *w)
2624{ 3318{
2625 EV_FREQUENT_CHECK; 3319 EV_FREQUENT_CHECK;
3320
3321 clear_pending (EV_A_ (W)w);
2626 3322
2627 if (ev_is_active (w)) 3323 if (ev_is_active (w))
2628 { 3324 {
2629 if (w->repeat) 3325 if (w->repeat)
2630 { 3326 {
… …
2660 if (w->reschedule_cb) 3356 if (w->reschedule_cb)
2661 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3357 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2662 else if (w->interval) 3358 else if (w->interval)
2663 { 3359 {
2664 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3360 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2665 /* this formula differs from the one in periodic_reify because we do not always round up */ 3361 periodic_recalc (EV_A_ w);
2666 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2667 } 3362 }
2668 else 3363 else
2669 ev_at (w) = w->offset; 3364 ev_at (w) = w->offset;
2670 3365
2671 EV_FREQUENT_CHECK; 3366 EV_FREQUENT_CHECK;
… …
2720#endif 3415#endif
2721 3416
2722#ifndef SA_RESTART 3417#ifndef SA_RESTART
2723# define SA_RESTART 0 3418# define SA_RESTART 0
2724#endif 3419#endif
3420
3421#if EV_SIGNAL_ENABLE
2725 3422
2726void noinline 3423void noinline
2727ev_signal_start (EV_P_ ev_signal *w) 3424ev_signal_start (EV_P_ ev_signal *w)
2728{ 3425{
2729 if (expect_false (ev_is_active (w))) 3426 if (expect_false (ev_is_active (w)))
… …
2790 sa.sa_handler = ev_sighandler; 3487 sa.sa_handler = ev_sighandler;
2791 sigfillset (&sa.sa_mask); 3488 sigfillset (&sa.sa_mask);
2792 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3489 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2793 sigaction (w->signum, &sa, 0); 3490 sigaction (w->signum, &sa, 0);
2794 3491
3492 if (origflags & EVFLAG_NOSIGMASK)
3493 {
2795 sigemptyset (&sa.sa_mask); 3494 sigemptyset (&sa.sa_mask);
2796 sigaddset (&sa.sa_mask, w->signum); 3495 sigaddset (&sa.sa_mask, w->signum);
2797 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3496 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3497 }
2798#endif 3498#endif
2799 } 3499 }
2800 3500
2801 EV_FREQUENT_CHECK; 3501 EV_FREQUENT_CHECK;
2802} 3502}
… …
2836 } 3536 }
2837 3537
2838 EV_FREQUENT_CHECK; 3538 EV_FREQUENT_CHECK;
2839} 3539}
2840 3540
3541#endif
3542
3543#if EV_CHILD_ENABLE
3544
2841void 3545void
2842ev_child_start (EV_P_ ev_child *w) 3546ev_child_start (EV_P_ ev_child *w)
2843{ 3547{
2844#if EV_MULTIPLICITY 3548#if EV_MULTIPLICITY
2845 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3549 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2848 return; 3552 return;
2849 3553
2850 EV_FREQUENT_CHECK; 3554 EV_FREQUENT_CHECK;
2851 3555
2852 ev_start (EV_A_ (W)w, 1); 3556 ev_start (EV_A_ (W)w, 1);
2853 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3557 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2854 3558
2855 EV_FREQUENT_CHECK; 3559 EV_FREQUENT_CHECK;
2856} 3560}
2857 3561
2858void 3562void
… …
2862 if (expect_false (!ev_is_active (w))) 3566 if (expect_false (!ev_is_active (w)))
2863 return; 3567 return;
2864 3568
2865 EV_FREQUENT_CHECK; 3569 EV_FREQUENT_CHECK;
2866 3570
2867 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3571 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2868 ev_stop (EV_A_ (W)w); 3572 ev_stop (EV_A_ (W)w);
2869 3573
2870 EV_FREQUENT_CHECK; 3574 EV_FREQUENT_CHECK;
2871} 3575}
3576
3577#endif
2872 3578
2873#if EV_STAT_ENABLE 3579#if EV_STAT_ENABLE
2874 3580
2875# ifdef _WIN32 3581# ifdef _WIN32
2876# undef lstat 3582# undef lstat
… …
2937 if (!pend || pend == path) 3643 if (!pend || pend == path)
2938 break; 3644 break;
2939 3645
2940 *pend = 0; 3646 *pend = 0;
2941 w->wd = inotify_add_watch (fs_fd, path, mask); 3647 w->wd = inotify_add_watch (fs_fd, path, mask);
2942 } 3648 }
2943 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3649 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2944 } 3650 }
2945 } 3651 }
2946 3652
2947 if (w->wd >= 0) 3653 if (w->wd >= 0)
2948 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3654 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2949 3655
2950 /* now re-arm timer, if required */ 3656 /* now re-arm timer, if required */
2951 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3657 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2952 ev_timer_again (EV_A_ &w->timer); 3658 ev_timer_again (EV_A_ &w->timer);
2953 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3659 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2961 3667
2962 if (wd < 0) 3668 if (wd < 0)
2963 return; 3669 return;
2964 3670
2965 w->wd = -2; 3671 w->wd = -2;
2966 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3672 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2967 wlist_del (&fs_hash [slot].head, (WL)w); 3673 wlist_del (&fs_hash [slot].head, (WL)w);
2968 3674
2969 /* remove this watcher, if others are watching it, they will rearm */ 3675 /* remove this watcher, if others are watching it, they will rearm */
2970 inotify_rm_watch (fs_fd, wd); 3676 inotify_rm_watch (fs_fd, wd);
2971} 3677}
… …
2973static void noinline 3679static void noinline
2974infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3680infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2975{ 3681{
2976 if (slot < 0) 3682 if (slot < 0)
2977 /* overflow, need to check for all hash slots */ 3683 /* overflow, need to check for all hash slots */
2978 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3684 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2979 infy_wd (EV_A_ slot, wd, ev); 3685 infy_wd (EV_A_ slot, wd, ev);
2980 else 3686 else
2981 { 3687 {
2982 WL w_; 3688 WL w_;
2983 3689
2984 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3690 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2985 { 3691 {
2986 ev_stat *w = (ev_stat *)w_; 3692 ev_stat *w = (ev_stat *)w_;
2987 w_ = w_->next; /* lets us remove this watcher and all before it */ 3693 w_ = w_->next; /* lets us remove this watcher and all before it */
2988 3694
2989 if (w->wd == wd || wd == -1) 3695 if (w->wd == wd || wd == -1)
2990 { 3696 {
2991 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3697 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2992 { 3698 {
2993 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3699 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2994 w->wd = -1; 3700 w->wd = -1;
2995 infy_add (EV_A_ w); /* re-add, no matter what */ 3701 infy_add (EV_A_ w); /* re-add, no matter what */
2996 } 3702 }
2997 3703
2998 stat_timer_cb (EV_A_ &w->timer, 0); 3704 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3014 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3720 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3015 ofs += sizeof (struct inotify_event) + ev->len; 3721 ofs += sizeof (struct inotify_event) + ev->len;
3016 } 3722 }
3017} 3723}
3018 3724
3019inline_size unsigned int
3020ev_linux_version (void)
3021{
3022 struct utsname buf;
3023 unsigned int v;
3024 int i;
3025 char *p = buf.release;
3026
3027 if (uname (&buf))
3028 return 0;
3029
3030 for (i = 3+1; --i; )
3031 {
3032 unsigned int c = 0;
3033
3034 for (;;)
3035 {
3036 if (*p >= '0' && *p <= '9')
3037 c = c * 10 + *p++ - '0';
3038 else
3039 {
3040 p += *p == '.';
3041 break;
3042 }
3043 }
3044
3045 v = (v << 8) | c;
3046 }
3047
3048 return v;
3049}
3050
3051inline_size void 3725inline_size void ecb_cold
3052ev_check_2625 (EV_P) 3726ev_check_2625 (EV_P)
3053{ 3727{
3054 /* kernels < 2.6.25 are borked 3728 /* kernels < 2.6.25 are borked
3055 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3729 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3056 */ 3730 */
… …
3112 ev_io_set (&fs_w, fs_fd, EV_READ); 3786 ev_io_set (&fs_w, fs_fd, EV_READ);
3113 ev_io_start (EV_A_ &fs_w); 3787 ev_io_start (EV_A_ &fs_w);
3114 ev_unref (EV_A); 3788 ev_unref (EV_A);
3115 } 3789 }
3116 3790
3117 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3791 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3118 { 3792 {
3119 WL w_ = fs_hash [slot].head; 3793 WL w_ = fs_hash [slot].head;
3120 fs_hash [slot].head = 0; 3794 fs_hash [slot].head = 0;
3121 3795
3122 while (w_) 3796 while (w_)
… …
3297 3971
3298 EV_FREQUENT_CHECK; 3972 EV_FREQUENT_CHECK;
3299} 3973}
3300#endif 3974#endif
3301 3975
3976#if EV_PREPARE_ENABLE
3302void 3977void
3303ev_prepare_start (EV_P_ ev_prepare *w) 3978ev_prepare_start (EV_P_ ev_prepare *w)
3304{ 3979{
3305 if (expect_false (ev_is_active (w))) 3980 if (expect_false (ev_is_active (w)))
3306 return; 3981 return;
… …
3332 4007
3333 ev_stop (EV_A_ (W)w); 4008 ev_stop (EV_A_ (W)w);
3334 4009
3335 EV_FREQUENT_CHECK; 4010 EV_FREQUENT_CHECK;
3336} 4011}
4012#endif
3337 4013
4014#if EV_CHECK_ENABLE
3338void 4015void
3339ev_check_start (EV_P_ ev_check *w) 4016ev_check_start (EV_P_ ev_check *w)
3340{ 4017{
3341 if (expect_false (ev_is_active (w))) 4018 if (expect_false (ev_is_active (w)))
3342 return; 4019 return;
… …
3368 4045
3369 ev_stop (EV_A_ (W)w); 4046 ev_stop (EV_A_ (W)w);
3370 4047
3371 EV_FREQUENT_CHECK; 4048 EV_FREQUENT_CHECK;
3372} 4049}
4050#endif
3373 4051
3374#if EV_EMBED_ENABLE 4052#if EV_EMBED_ENABLE
3375void noinline 4053void noinline
3376ev_embed_sweep (EV_P_ ev_embed *w) 4054ev_embed_sweep (EV_P_ ev_embed *w)
3377{ 4055{
3378 ev_loop (w->other, EVLOOP_NONBLOCK); 4056 ev_run (w->other, EVRUN_NOWAIT);
3379} 4057}
3380 4058
3381static void 4059static void
3382embed_io_cb (EV_P_ ev_io *io, int revents) 4060embed_io_cb (EV_P_ ev_io *io, int revents)
3383{ 4061{
3384 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4062 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3385 4063
3386 if (ev_cb (w)) 4064 if (ev_cb (w))
3387 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4065 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3388 else 4066 else
3389 ev_loop (w->other, EVLOOP_NONBLOCK); 4067 ev_run (w->other, EVRUN_NOWAIT);
3390} 4068}
3391 4069
3392static void 4070static void
3393embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4071embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3394{ 4072{
… …
3398 EV_P = w->other; 4076 EV_P = w->other;
3399 4077
3400 while (fdchangecnt) 4078 while (fdchangecnt)
3401 { 4079 {
3402 fd_reify (EV_A); 4080 fd_reify (EV_A);
3403 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4081 ev_run (EV_A_ EVRUN_NOWAIT);
3404 } 4082 }
3405 } 4083 }
3406} 4084}
3407 4085
3408static void 4086static void
… …
3414 4092
3415 { 4093 {
3416 EV_P = w->other; 4094 EV_P = w->other;
3417 4095
3418 ev_loop_fork (EV_A); 4096 ev_loop_fork (EV_A);
3419 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4097 ev_run (EV_A_ EVRUN_NOWAIT);
3420 } 4098 }
3421 4099
3422 ev_embed_start (EV_A_ w); 4100 ev_embed_start (EV_A_ w);
3423} 4101}
3424 4102
… …
3516 4194
3517 EV_FREQUENT_CHECK; 4195 EV_FREQUENT_CHECK;
3518} 4196}
3519#endif 4197#endif
3520 4198
4199#if EV_CLEANUP_ENABLE
4200void
4201ev_cleanup_start (EV_P_ ev_cleanup *w)
4202{
4203 if (expect_false (ev_is_active (w)))
4204 return;
4205
4206 EV_FREQUENT_CHECK;
4207
4208 ev_start (EV_A_ (W)w, ++cleanupcnt);
4209 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4210 cleanups [cleanupcnt - 1] = w;
4211
4212 /* cleanup watchers should never keep a refcount on the loop */
4213 ev_unref (EV_A);
4214 EV_FREQUENT_CHECK;
4215}
4216
4217void
4218ev_cleanup_stop (EV_P_ ev_cleanup *w)
4219{
4220 clear_pending (EV_A_ (W)w);
4221 if (expect_false (!ev_is_active (w)))
4222 return;
4223
4224 EV_FREQUENT_CHECK;
4225 ev_ref (EV_A);
4226
4227 {
4228 int active = ev_active (w);
4229
4230 cleanups [active - 1] = cleanups [--cleanupcnt];
4231 ev_active (cleanups [active - 1]) = active;
4232 }
4233
4234 ev_stop (EV_A_ (W)w);
4235
4236 EV_FREQUENT_CHECK;
4237}
4238#endif
4239
3521#if EV_ASYNC_ENABLE 4240#if EV_ASYNC_ENABLE
3522void 4241void
3523ev_async_start (EV_P_ ev_async *w) 4242ev_async_start (EV_P_ ev_async *w)
3524{ 4243{
3525 if (expect_false (ev_is_active (w))) 4244 if (expect_false (ev_is_active (w)))
3526 return; 4245 return;
4246
4247 w->sent = 0;
3527 4248
3528 evpipe_init (EV_A); 4249 evpipe_init (EV_A);
3529 4250
3530 EV_FREQUENT_CHECK; 4251 EV_FREQUENT_CHECK;
3531 4252
… …
3609{ 4330{
3610 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4331 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3611 4332
3612 if (expect_false (!once)) 4333 if (expect_false (!once))
3613 { 4334 {
3614 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4335 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3615 return; 4336 return;
3616 } 4337 }
3617 4338
3618 once->cb = cb; 4339 once->cb = cb;
3619 once->arg = arg; 4340 once->arg = arg;
… …
3634} 4355}
3635 4356
3636/*****************************************************************************/ 4357/*****************************************************************************/
3637 4358
3638#if EV_WALK_ENABLE 4359#if EV_WALK_ENABLE
3639void 4360void ecb_cold
3640ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4361ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3641{ 4362{
3642 int i, j; 4363 int i, j;
3643 ev_watcher_list *wl, *wn; 4364 ev_watcher_list *wl, *wn;
3644 4365
… …
3688 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4409 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3689#endif 4410#endif
3690 4411
3691#if EV_IDLE_ENABLE 4412#if EV_IDLE_ENABLE
3692 if (types & EV_IDLE) 4413 if (types & EV_IDLE)
3693 for (j = NUMPRI; i--; ) 4414 for (j = NUMPRI; j--; )
3694 for (i = idlecnt [j]; i--; ) 4415 for (i = idlecnt [j]; i--; )
3695 cb (EV_A_ EV_IDLE, idles [j][i]); 4416 cb (EV_A_ EV_IDLE, idles [j][i]);
3696#endif 4417#endif
3697 4418
3698#if EV_FORK_ENABLE 4419#if EV_FORK_ENABLE
… …
3706 if (types & EV_ASYNC) 4427 if (types & EV_ASYNC)
3707 for (i = asynccnt; i--; ) 4428 for (i = asynccnt; i--; )
3708 cb (EV_A_ EV_ASYNC, asyncs [i]); 4429 cb (EV_A_ EV_ASYNC, asyncs [i]);
3709#endif 4430#endif
3710 4431
4432#if EV_PREPARE_ENABLE
3711 if (types & EV_PREPARE) 4433 if (types & EV_PREPARE)
3712 for (i = preparecnt; i--; ) 4434 for (i = preparecnt; i--; )
3713#if EV_EMBED_ENABLE 4435# if EV_EMBED_ENABLE
3714 if (ev_cb (prepares [i]) != embed_prepare_cb) 4436 if (ev_cb (prepares [i]) != embed_prepare_cb)
3715#endif 4437# endif
3716 cb (EV_A_ EV_PREPARE, prepares [i]); 4438 cb (EV_A_ EV_PREPARE, prepares [i]);
4439#endif
3717 4440
4441#if EV_CHECK_ENABLE
3718 if (types & EV_CHECK) 4442 if (types & EV_CHECK)
3719 for (i = checkcnt; i--; ) 4443 for (i = checkcnt; i--; )
3720 cb (EV_A_ EV_CHECK, checks [i]); 4444 cb (EV_A_ EV_CHECK, checks [i]);
4445#endif
3721 4446
4447#if EV_SIGNAL_ENABLE
3722 if (types & EV_SIGNAL) 4448 if (types & EV_SIGNAL)
3723 for (i = 0; i < EV_NSIG - 1; ++i) 4449 for (i = 0; i < EV_NSIG - 1; ++i)
3724 for (wl = signals [i].head; wl; ) 4450 for (wl = signals [i].head; wl; )
3725 { 4451 {
3726 wn = wl->next; 4452 wn = wl->next;
3727 cb (EV_A_ EV_SIGNAL, wl); 4453 cb (EV_A_ EV_SIGNAL, wl);
3728 wl = wn; 4454 wl = wn;
3729 } 4455 }
4456#endif
3730 4457
4458#if EV_CHILD_ENABLE
3731 if (types & EV_CHILD) 4459 if (types & EV_CHILD)
3732 for (i = EV_PID_HASHSIZE; i--; ) 4460 for (i = (EV_PID_HASHSIZE); i--; )
3733 for (wl = childs [i]; wl; ) 4461 for (wl = childs [i]; wl; )
3734 { 4462 {
3735 wn = wl->next; 4463 wn = wl->next;
3736 cb (EV_A_ EV_CHILD, wl); 4464 cb (EV_A_ EV_CHILD, wl);
3737 wl = wn; 4465 wl = wn;
3738 } 4466 }
4467#endif
3739/* EV_STAT 0x00001000 /* stat data changed */ 4468/* EV_STAT 0x00001000 /* stat data changed */
3740/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4469/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3741} 4470}
3742#endif 4471#endif
3743 4472
3744#if EV_MULTIPLICITY 4473#if EV_MULTIPLICITY
3745 #include "ev_wrap.h" 4474 #include "ev_wrap.h"
3746#endif 4475#endif
3747 4476
3748#ifdef __cplusplus
3749}
3750#endif
3751

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