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Comparing libev/ev.c (file contents):
Revision 1.332 by root, Tue Mar 9 08:58:17 2010 UTC vs.
Revision 1.409 by root, Sat Feb 4 15:17:34 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
… …
186# ifndef EV_SELECT_IS_WINSOCKET 196# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 197# define EV_SELECT_IS_WINSOCKET 1
188# endif 198# endif
189# undef EV_AVOID_STDIO 199# undef EV_AVOID_STDIO
190#endif 200#endif
201
202/* OS X, in its infinite idiocy, actually HARDCODES
203 * a limit of 1024 into their select. Where people have brains,
204 * OS X engineers apparently have a vacuum. Or maybe they were
205 * ordered to have a vacuum, or they do anything for money.
206 * This might help. Or not.
207 */
208#define _DARWIN_UNLIMITED_SELECT 1
191 209
192/* this block tries to deduce configuration from header-defined symbols and defaults */ 210/* this block tries to deduce configuration from header-defined symbols and defaults */
193 211
194/* try to deduce the maximum number of signals on this platform */ 212/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 213#if defined (EV_NSIG)
… …
207#elif defined (MAXSIG) 225#elif defined (MAXSIG)
208# define EV_NSIG (MAXSIG+1) 226# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 227#elif defined (MAX_SIG)
210# define EV_NSIG (MAX_SIG+1) 228# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 229#elif defined (SIGARRAYSIZE)
212# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 230# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 231#elif defined (_sys_nsig)
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 232# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 233#else
216# error "unable to find value for NSIG, please report" 234# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line */ 235/* to make it compile regardless, just remove the above line, */
236/* but consider reporting it, too! :) */
218# define EV_NSIG 65 237# define EV_NSIG 65
238#endif
239
240#ifndef EV_USE_FLOOR
241# define EV_USE_FLOOR 0
219#endif 242#endif
220 243
221#ifndef EV_USE_CLOCK_SYSCALL 244#ifndef EV_USE_CLOCK_SYSCALL
222# if __linux && __GLIBC__ >= 2 245# if __linux && __GLIBC__ >= 2
223# define EV_USE_CLOCK_SYSCALL 1 246# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
224# else 247# else
225# define EV_USE_CLOCK_SYSCALL 0 248# define EV_USE_CLOCK_SYSCALL 0
226# endif 249# endif
227#endif 250#endif
228 251
229#ifndef EV_USE_MONOTONIC 252#ifndef EV_USE_MONOTONIC
230# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 253# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
231# define EV_USE_MONOTONIC 1 254# define EV_USE_MONOTONIC EV_FEATURE_OS
232# else 255# else
233# define EV_USE_MONOTONIC 0 256# define EV_USE_MONOTONIC 0
234# endif 257# endif
235#endif 258#endif
236 259
… …
238# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 261# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239#endif 262#endif
240 263
241#ifndef EV_USE_NANOSLEEP 264#ifndef EV_USE_NANOSLEEP
242# if _POSIX_C_SOURCE >= 199309L 265# if _POSIX_C_SOURCE >= 199309L
243# define EV_USE_NANOSLEEP 1 266# define EV_USE_NANOSLEEP EV_FEATURE_OS
244# else 267# else
245# define EV_USE_NANOSLEEP 0 268# define EV_USE_NANOSLEEP 0
246# endif 269# endif
247#endif 270#endif
248 271
249#ifndef EV_USE_SELECT 272#ifndef EV_USE_SELECT
250# define EV_USE_SELECT 1 273# define EV_USE_SELECT EV_FEATURE_BACKENDS
251#endif 274#endif
252 275
253#ifndef EV_USE_POLL 276#ifndef EV_USE_POLL
254# ifdef _WIN32 277# ifdef _WIN32
255# define EV_USE_POLL 0 278# define EV_USE_POLL 0
256# else 279# else
257# define EV_USE_POLL 1 280# define EV_USE_POLL EV_FEATURE_BACKENDS
258# endif 281# endif
259#endif 282#endif
260 283
261#ifndef EV_USE_EPOLL 284#ifndef EV_USE_EPOLL
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 285# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263# define EV_USE_EPOLL 1 286# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264# else 287# else
265# define EV_USE_EPOLL 0 288# define EV_USE_EPOLL 0
266# endif 289# endif
267#endif 290#endif
268 291
… …
274# define EV_USE_PORT 0 297# define EV_USE_PORT 0
275#endif 298#endif
276 299
277#ifndef EV_USE_INOTIFY 300#ifndef EV_USE_INOTIFY
278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 301# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279# define EV_USE_INOTIFY 1 302# define EV_USE_INOTIFY EV_FEATURE_OS
280# else 303# else
281# define EV_USE_INOTIFY 0 304# define EV_USE_INOTIFY 0
282# endif 305# endif
283#endif 306#endif
284 307
285#ifndef EV_PID_HASHSIZE 308#ifndef EV_PID_HASHSIZE
286# if EV_MINIMAL 309# 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 310#endif
292 311
293#ifndef EV_INOTIFY_HASHSIZE 312#ifndef EV_INOTIFY_HASHSIZE
294# if EV_MINIMAL 313# 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 314#endif
300 315
301#ifndef EV_USE_EVENTFD 316#ifndef EV_USE_EVENTFD
302# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 317# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303# define EV_USE_EVENTFD 1 318# define EV_USE_EVENTFD EV_FEATURE_OS
304# else 319# else
305# define EV_USE_EVENTFD 0 320# define EV_USE_EVENTFD 0
306# endif 321# endif
307#endif 322#endif
308 323
309#ifndef EV_USE_SIGNALFD 324#ifndef EV_USE_SIGNALFD
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 325# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311# define EV_USE_SIGNALFD 1 326# define EV_USE_SIGNALFD EV_FEATURE_OS
312# else 327# else
313# define EV_USE_SIGNALFD 0 328# define EV_USE_SIGNALFD 0
314# endif 329# endif
315#endif 330#endif
316 331
… …
319# define EV_USE_4HEAP 1 334# define EV_USE_4HEAP 1
320# define EV_HEAP_CACHE_AT 1 335# define EV_HEAP_CACHE_AT 1
321#endif 336#endif
322 337
323#ifndef EV_VERIFY 338#ifndef EV_VERIFY
324# define EV_VERIFY !EV_MINIMAL 339# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325#endif 340#endif
326 341
327#ifndef EV_USE_4HEAP 342#ifndef EV_USE_4HEAP
328# define EV_USE_4HEAP !EV_MINIMAL 343# define EV_USE_4HEAP EV_FEATURE_DATA
329#endif 344#endif
330 345
331#ifndef EV_HEAP_CACHE_AT 346#ifndef EV_HEAP_CACHE_AT
332# define EV_HEAP_CACHE_AT !EV_MINIMAL 347# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
333#endif 348#endif
334 349
335/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 350/* 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. */ 351/* which makes programs even slower. might work on other unices, too. */
337#if EV_USE_CLOCK_SYSCALL 352#if EV_USE_CLOCK_SYSCALL
… …
368# undef EV_USE_INOTIFY 383# undef EV_USE_INOTIFY
369# define EV_USE_INOTIFY 0 384# define EV_USE_INOTIFY 0
370#endif 385#endif
371 386
372#if !EV_USE_NANOSLEEP 387#if !EV_USE_NANOSLEEP
373# ifndef _WIN32 388/* hp-ux has it in sys/time.h, which we unconditionally include above */
389# if !defined(_WIN32) && !defined(__hpux)
374# include <sys/select.h> 390# include <sys/select.h>
375# endif 391# endif
376#endif 392#endif
377 393
378#if EV_USE_INOTIFY 394#if EV_USE_INOTIFY
379# include <sys/utsname.h>
380# include <sys/statfs.h> 395# include <sys/statfs.h>
381# include <sys/inotify.h> 396# include <sys/inotify.h>
382/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 397/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
383# ifndef IN_DONT_FOLLOW 398# ifndef IN_DONT_FOLLOW
384# undef EV_USE_INOTIFY 399# undef EV_USE_INOTIFY
… …
401# define EFD_CLOEXEC O_CLOEXEC 416# define EFD_CLOEXEC O_CLOEXEC
402# else 417# else
403# define EFD_CLOEXEC 02000000 418# define EFD_CLOEXEC 02000000
404# endif 419# endif
405# endif 420# endif
406# ifdef __cplusplus
407extern "C" {
408# endif
409int (eventfd) (unsigned int initval, int flags); 421EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410# ifdef __cplusplus
411}
412# endif
413#endif 422#endif
414 423
415#if EV_USE_SIGNALFD 424#if EV_USE_SIGNALFD
416/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 425/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
417# include <stdint.h> 426# include <stdint.h>
… …
423# define SFD_CLOEXEC O_CLOEXEC 432# define SFD_CLOEXEC O_CLOEXEC
424# else 433# else
425# define SFD_CLOEXEC 02000000 434# define SFD_CLOEXEC 02000000
426# endif 435# endif
427# endif 436# endif
428# ifdef __cplusplus
429extern "C" {
430# endif
431int signalfd (int fd, const sigset_t *mask, int flags); 437EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
432 438
433struct signalfd_siginfo 439struct signalfd_siginfo
434{ 440{
435 uint32_t ssi_signo; 441 uint32_t ssi_signo;
436 char pad[128 - sizeof (uint32_t)]; 442 char pad[128 - sizeof (uint32_t)];
437}; 443};
438# ifdef __cplusplus
439}
440# endif 444#endif
441#endif
442
443 445
444/**/ 446/**/
445 447
446#if EV_VERIFY >= 3 448#if EV_VERIFY >= 3
447# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 449# define EV_FREQUENT_CHECK ev_verify (EV_A)
448#else 450#else
449# define EV_FREQUENT_CHECK do { } while (0) 451# define EV_FREQUENT_CHECK do { } while (0)
450#endif 452#endif
451 453
452/* 454/*
453 * This is used to avoid floating point rounding problems. 455 * 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. 456 * This value is good at least till the year 4000.
458 * Better solutions welcome.
459 */ 457 */
460#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 458#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
459/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
461 460
462#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 461#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) */ 462#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
464 463
464#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
465#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
466
467/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
468/* ECB.H BEGIN */
469/*
470 * libecb - http://software.schmorp.de/pkg/libecb
471 *
472 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
473 * Copyright (©) 2011 Emanuele Giaquinta
474 * All rights reserved.
475 *
476 * Redistribution and use in source and binary forms, with or without modifica-
477 * tion, are permitted provided that the following conditions are met:
478 *
479 * 1. Redistributions of source code must retain the above copyright notice,
480 * this list of conditions and the following disclaimer.
481 *
482 * 2. Redistributions in binary form must reproduce the above copyright
483 * notice, this list of conditions and the following disclaimer in the
484 * documentation and/or other materials provided with the distribution.
485 *
486 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
487 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
488 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
489 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
490 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
491 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
492 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
493 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
494 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
495 * OF THE POSSIBILITY OF SUCH DAMAGE.
496 */
497
498#ifndef ECB_H
499#define ECB_H
500
501#ifdef _WIN32
502 typedef signed char int8_t;
503 typedef unsigned char uint8_t;
504 typedef signed short int16_t;
505 typedef unsigned short uint16_t;
506 typedef signed int int32_t;
507 typedef unsigned int uint32_t;
465#if __GNUC__ >= 4 508 #if __GNUC__
466# define expect(expr,value) __builtin_expect ((expr),(value)) 509 typedef signed long long int64_t;
467# define noinline __attribute__ ((noinline)) 510 typedef unsigned long long uint64_t;
511 #else /* _MSC_VER || __BORLANDC__ */
512 typedef signed __int64 int64_t;
513 typedef unsigned __int64 uint64_t;
514 #endif
468#else 515#else
469# define expect(expr,value) (expr) 516 #include <inttypes.h>
470# define noinline
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
472# define inline
473# endif 517#endif
518
519/* many compilers define _GNUC_ to some versions but then only implement
520 * what their idiot authors think are the "more important" extensions,
521 * causing enormous grief in return for some better fake benchmark numbers.
522 * or so.
523 * we try to detect these and simply assume they are not gcc - if they have
524 * an issue with that they should have done it right in the first place.
525 */
526#ifndef ECB_GCC_VERSION
527 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
528 #define ECB_GCC_VERSION(major,minor) 0
529 #else
530 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
474#endif 531 #endif
532#endif
475 533
534/*****************************************************************************/
535
536/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
537/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
538
539#if ECB_NO_THREADS || ECB_NO_SMP
540 #define ECB_MEMORY_FENCE do { } while (0)
541#endif
542
543#ifndef ECB_MEMORY_FENCE
544 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
545 #if __i386 || __i386__
546 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
547 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
548 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
549 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
550 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
551 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
552 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
553 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
555 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
556 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)
557 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
558 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
559 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
560 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
561 #elif __sparc || __sparc__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
565 #elif defined(__s390__) || defined(__s390x__)
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
567 #endif
568 #endif
569#endif
570
571#ifndef ECB_MEMORY_FENCE
572 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)
573 #define ECB_MEMORY_FENCE __sync_synchronize ()
574 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
575 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
576 #elif _MSC_VER >= 1400 /* VC++ 2005 */
577 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
578 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
579 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
580 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
581 #elif defined(_WIN32)
582 #include <WinNT.h>
583 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
584 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
585 #include <mbarrier.h>
586 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
587 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
588 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
589 #endif
590#endif
591
592#ifndef ECB_MEMORY_FENCE
593 #if !ECB_AVOID_PTHREADS
594 /*
595 * if you get undefined symbol references to pthread_mutex_lock,
596 * or failure to find pthread.h, then you should implement
597 * the ECB_MEMORY_FENCE operations for your cpu/compiler
598 * OR provide pthread.h and link against the posix thread library
599 * of your system.
600 */
601 #include <pthread.h>
602 #define ECB_NEEDS_PTHREADS 1
603 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
604
605 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
606 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
607 #endif
608#endif
609
610#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
611 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
612#endif
613
614#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
615 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
616#endif
617
618/*****************************************************************************/
619
620#define ECB_C99 (__STDC_VERSION__ >= 199901L)
621
622#if __cplusplus
623 #define ecb_inline static inline
624#elif ECB_GCC_VERSION(2,5)
625 #define ecb_inline static __inline__
626#elif ECB_C99
627 #define ecb_inline static inline
628#else
629 #define ecb_inline static
630#endif
631
632#if ECB_GCC_VERSION(3,3)
633 #define ecb_restrict __restrict__
634#elif ECB_C99
635 #define ecb_restrict restrict
636#else
637 #define ecb_restrict
638#endif
639
640typedef int ecb_bool;
641
642#define ECB_CONCAT_(a, b) a ## b
643#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
644#define ECB_STRINGIFY_(a) # a
645#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
646
647#define ecb_function_ ecb_inline
648
649#if ECB_GCC_VERSION(3,1)
650 #define ecb_attribute(attrlist) __attribute__(attrlist)
651 #define ecb_is_constant(expr) __builtin_constant_p (expr)
652 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
653 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
654#else
655 #define ecb_attribute(attrlist)
656 #define ecb_is_constant(expr) 0
657 #define ecb_expect(expr,value) (expr)
658 #define ecb_prefetch(addr,rw,locality)
659#endif
660
661/* no emulation for ecb_decltype */
662#if ECB_GCC_VERSION(4,5)
663 #define ecb_decltype(x) __decltype(x)
664#elif ECB_GCC_VERSION(3,0)
665 #define ecb_decltype(x) __typeof(x)
666#endif
667
668#define ecb_noinline ecb_attribute ((__noinline__))
669#define ecb_noreturn ecb_attribute ((__noreturn__))
670#define ecb_unused ecb_attribute ((__unused__))
671#define ecb_const ecb_attribute ((__const__))
672#define ecb_pure ecb_attribute ((__pure__))
673
674#if ECB_GCC_VERSION(4,3)
675 #define ecb_artificial ecb_attribute ((__artificial__))
676 #define ecb_hot ecb_attribute ((__hot__))
677 #define ecb_cold ecb_attribute ((__cold__))
678#else
679 #define ecb_artificial
680 #define ecb_hot
681 #define ecb_cold
682#endif
683
684/* put around conditional expressions if you are very sure that the */
685/* expression is mostly true or mostly false. note that these return */
686/* booleans, not the expression. */
476#define expect_false(expr) expect ((expr) != 0, 0) 687#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 688#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
689/* for compatibility to the rest of the world */
690#define ecb_likely(expr) ecb_expect_true (expr)
691#define ecb_unlikely(expr) ecb_expect_false (expr)
692
693/* count trailing zero bits and count # of one bits */
694#if ECB_GCC_VERSION(3,4)
695 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
696 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
697 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
698 #define ecb_ctz32(x) __builtin_ctz (x)
699 #define ecb_ctz64(x) __builtin_ctzll (x)
700 #define ecb_popcount32(x) __builtin_popcount (x)
701 /* no popcountll */
702#else
703 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
704 ecb_function_ int
705 ecb_ctz32 (uint32_t x)
706 {
707 int r = 0;
708
709 x &= ~x + 1; /* this isolates the lowest bit */
710
711#if ECB_branchless_on_i386
712 r += !!(x & 0xaaaaaaaa) << 0;
713 r += !!(x & 0xcccccccc) << 1;
714 r += !!(x & 0xf0f0f0f0) << 2;
715 r += !!(x & 0xff00ff00) << 3;
716 r += !!(x & 0xffff0000) << 4;
717#else
718 if (x & 0xaaaaaaaa) r += 1;
719 if (x & 0xcccccccc) r += 2;
720 if (x & 0xf0f0f0f0) r += 4;
721 if (x & 0xff00ff00) r += 8;
722 if (x & 0xffff0000) r += 16;
723#endif
724
725 return r;
726 }
727
728 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
729 ecb_function_ int
730 ecb_ctz64 (uint64_t x)
731 {
732 int shift = x & 0xffffffffU ? 0 : 32;
733 return ecb_ctz32 (x >> shift) + shift;
734 }
735
736 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
737 ecb_function_ int
738 ecb_popcount32 (uint32_t x)
739 {
740 x -= (x >> 1) & 0x55555555;
741 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
742 x = ((x >> 4) + x) & 0x0f0f0f0f;
743 x *= 0x01010101;
744
745 return x >> 24;
746 }
747
748 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
749 ecb_function_ int ecb_ld32 (uint32_t x)
750 {
751 int r = 0;
752
753 if (x >> 16) { x >>= 16; r += 16; }
754 if (x >> 8) { x >>= 8; r += 8; }
755 if (x >> 4) { x >>= 4; r += 4; }
756 if (x >> 2) { x >>= 2; r += 2; }
757 if (x >> 1) { r += 1; }
758
759 return r;
760 }
761
762 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
763 ecb_function_ int ecb_ld64 (uint64_t x)
764 {
765 int r = 0;
766
767 if (x >> 32) { x >>= 32; r += 32; }
768
769 return r + ecb_ld32 (x);
770 }
771#endif
772
773ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
774ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
775{
776 return ( (x * 0x0802U & 0x22110U)
777 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
778}
779
780ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
781ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
782{
783 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
784 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
785 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
786 x = ( x >> 8 ) | ( x << 8);
787
788 return x;
789}
790
791ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
792ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
793{
794 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
795 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
796 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
797 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
798 x = ( x >> 16 ) | ( x << 16);
799
800 return x;
801}
802
803/* popcount64 is only available on 64 bit cpus as gcc builtin */
804/* so for this version we are lazy */
805ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
806ecb_function_ int
807ecb_popcount64 (uint64_t x)
808{
809 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
810}
811
812ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
813ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
814ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
815ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
816ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
817ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
818ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
819ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
820
821ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
822ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
823ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
824ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
825ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
826ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
827ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
828ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
829
830#if ECB_GCC_VERSION(4,3)
831 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
832 #define ecb_bswap32(x) __builtin_bswap32 (x)
833 #define ecb_bswap64(x) __builtin_bswap64 (x)
834#else
835 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
836 ecb_function_ uint16_t
837 ecb_bswap16 (uint16_t x)
838 {
839 return ecb_rotl16 (x, 8);
840 }
841
842 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
843 ecb_function_ uint32_t
844 ecb_bswap32 (uint32_t x)
845 {
846 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
847 }
848
849 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
850 ecb_function_ uint64_t
851 ecb_bswap64 (uint64_t x)
852 {
853 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
854 }
855#endif
856
857#if ECB_GCC_VERSION(4,5)
858 #define ecb_unreachable() __builtin_unreachable ()
859#else
860 /* this seems to work fine, but gcc always emits a warning for it :/ */
861 ecb_inline void ecb_unreachable (void) ecb_noreturn;
862 ecb_inline void ecb_unreachable (void) { }
863#endif
864
865/* try to tell the compiler that some condition is definitely true */
866#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
867
868ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
869ecb_inline unsigned char
870ecb_byteorder_helper (void)
871{
872 const uint32_t u = 0x11223344;
873 return *(unsigned char *)&u;
874}
875
876ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
877ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
878ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
879ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
880
881#if ECB_GCC_VERSION(3,0) || ECB_C99
882 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
883#else
884 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
885#endif
886
887#if __cplusplus
888 template<typename T>
889 static inline T ecb_div_rd (T val, T div)
890 {
891 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
892 }
893 template<typename T>
894 static inline T ecb_div_ru (T val, T div)
895 {
896 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
897 }
898#else
899 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
900 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
901#endif
902
903#if ecb_cplusplus_does_not_suck
904 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
905 template<typename T, int N>
906 static inline int ecb_array_length (const T (&arr)[N])
907 {
908 return N;
909 }
910#else
911 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
912#endif
913
914#endif
915
916/* ECB.H END */
917
918#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
919/* if your architecture doesn't need memory fences, e.g. because it is
920 * single-cpu/core, or if you use libev in a project that doesn't use libev
921 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
922 * libev, in which cases the memory fences become nops.
923 * alternatively, you can remove this #error and link against libpthread,
924 * which will then provide the memory fences.
925 */
926# error "memory fences not defined for your architecture, please report"
927#endif
928
929#ifndef ECB_MEMORY_FENCE
930# define ECB_MEMORY_FENCE do { } while (0)
931# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
932# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
933#endif
934
935#define expect_false(cond) ecb_expect_false (cond)
936#define expect_true(cond) ecb_expect_true (cond)
937#define noinline ecb_noinline
938
478#define inline_size static inline 939#define inline_size ecb_inline
479 940
480#if EV_MINIMAL 941#if EV_FEATURE_CODE
942# define inline_speed ecb_inline
943#else
481# define inline_speed static noinline 944# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 945#endif
485 946
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 947#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 948
488#if EV_MINPRI == EV_MAXPRI 949#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 962#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 963#define ev_at(w) ((WT)(w))->at
503 964
504#if EV_USE_REALTIME 965#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 966/* 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 */ 967/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 968static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 969#endif
509 970
510#if EV_USE_MONOTONIC 971#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 972static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 986# include "ev_win32.c"
526#endif 987#endif
527 988
528/*****************************************************************************/ 989/*****************************************************************************/
529 990
991/* define a suitable floor function (only used by periodics atm) */
992
993#if EV_USE_FLOOR
994# include <math.h>
995# define ev_floor(v) floor (v)
996#else
997
998#include <float.h>
999
1000/* a floor() replacement function, should be independent of ev_tstamp type */
1001static ev_tstamp noinline
1002ev_floor (ev_tstamp v)
1003{
1004 /* the choice of shift factor is not terribly important */
1005#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1006 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1007#else
1008 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1009#endif
1010
1011 /* argument too large for an unsigned long? */
1012 if (expect_false (v >= shift))
1013 {
1014 ev_tstamp f;
1015
1016 if (v == v - 1.)
1017 return v; /* very large number */
1018
1019 f = shift * ev_floor (v * (1. / shift));
1020 return f + ev_floor (v - f);
1021 }
1022
1023 /* special treatment for negative args? */
1024 if (expect_false (v < 0.))
1025 {
1026 ev_tstamp f = -ev_floor (-v);
1027
1028 return f - (f == v ? 0 : 1);
1029 }
1030
1031 /* fits into an unsigned long */
1032 return (unsigned long)v;
1033}
1034
1035#endif
1036
1037/*****************************************************************************/
1038
1039#ifdef __linux
1040# include <sys/utsname.h>
1041#endif
1042
1043static unsigned int noinline ecb_cold
1044ev_linux_version (void)
1045{
1046#ifdef __linux
1047 unsigned int v = 0;
1048 struct utsname buf;
1049 int i;
1050 char *p = buf.release;
1051
1052 if (uname (&buf))
1053 return 0;
1054
1055 for (i = 3+1; --i; )
1056 {
1057 unsigned int c = 0;
1058
1059 for (;;)
1060 {
1061 if (*p >= '0' && *p <= '9')
1062 c = c * 10 + *p++ - '0';
1063 else
1064 {
1065 p += *p == '.';
1066 break;
1067 }
1068 }
1069
1070 v = (v << 8) | c;
1071 }
1072
1073 return v;
1074#else
1075 return 0;
1076#endif
1077}
1078
1079/*****************************************************************************/
1080
530#if EV_AVOID_STDIO 1081#if EV_AVOID_STDIO
531static void noinline 1082static void noinline ecb_cold
532ev_printerr (const char *msg) 1083ev_printerr (const char *msg)
533{ 1084{
534 write (STDERR_FILENO, msg, strlen (msg)); 1085 write (STDERR_FILENO, msg, strlen (msg));
535} 1086}
536#endif 1087#endif
537 1088
538static void (*syserr_cb)(const char *msg); 1089static void (*syserr_cb)(const char *msg);
539 1090
540void 1091void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 1092ev_set_syserr_cb (void (*cb)(const char *msg))
542{ 1093{
543 syserr_cb = cb; 1094 syserr_cb = cb;
544} 1095}
545 1096
546static void noinline 1097static void noinline ecb_cold
547ev_syserr (const char *msg) 1098ev_syserr (const char *msg)
548{ 1099{
549 if (!msg) 1100 if (!msg)
550 msg = "(libev) system error"; 1101 msg = "(libev) system error";
551 1102
552 if (syserr_cb) 1103 if (syserr_cb)
553 syserr_cb (msg); 1104 syserr_cb (msg);
554 else 1105 else
555 { 1106 {
556#if EV_AVOID_STDIO 1107#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 1108 ev_printerr (msg);
560 ev_printerr (": "); 1109 ev_printerr (": ");
561 ev_printerr (err); 1110 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 1111 ev_printerr ("\n");
563#else 1112#else
564 perror (msg); 1113 perror (msg);
565#endif 1114#endif
566 abort (); 1115 abort ();
… …
568} 1117}
569 1118
570static void * 1119static void *
571ev_realloc_emul (void *ptr, long size) 1120ev_realloc_emul (void *ptr, long size)
572{ 1121{
1122#if __GLIBC__
1123 return realloc (ptr, size);
1124#else
573 /* some systems, notably openbsd and darwin, fail to properly 1125 /* some systems, notably openbsd and darwin, fail to properly
574 * implement realloc (x, 0) (as required by both ansi c-98 and 1126 * implement realloc (x, 0) (as required by both ansi c-89 and
575 * the single unix specification, so work around them here. 1127 * the single unix specification, so work around them here.
576 */ 1128 */
1129
577 if (size) 1130 if (size)
578 return realloc (ptr, size); 1131 return realloc (ptr, size);
579 1132
580 free (ptr); 1133 free (ptr);
581 return 0; 1134 return 0;
1135#endif
582} 1136}
583 1137
584static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1138static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
585 1139
586void 1140void ecb_cold
587ev_set_allocator (void *(*cb)(void *ptr, long size)) 1141ev_set_allocator (void *(*cb)(void *ptr, long size))
588{ 1142{
589 alloc = cb; 1143 alloc = cb;
590} 1144}
591 1145
… …
595 ptr = alloc (ptr, size); 1149 ptr = alloc (ptr, size);
596 1150
597 if (!ptr && size) 1151 if (!ptr && size)
598 { 1152 {
599#if EV_AVOID_STDIO 1153#if EV_AVOID_STDIO
600 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1154 ev_printerr ("(libev) memory allocation failed, aborting.\n");
601#else 1155#else
602 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1156 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
603#endif 1157#endif
604 abort (); 1158 abort ();
605 } 1159 }
606 1160
607 return ptr; 1161 return ptr;
… …
624 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1178 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
625 unsigned char unused; 1179 unsigned char unused;
626#if EV_USE_EPOLL 1180#if EV_USE_EPOLL
627 unsigned int egen; /* generation counter to counter epoll bugs */ 1181 unsigned int egen; /* generation counter to counter epoll bugs */
628#endif 1182#endif
629#if EV_SELECT_IS_WINSOCKET 1183#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
630 SOCKET handle; 1184 SOCKET handle;
1185#endif
1186#if EV_USE_IOCP
1187 OVERLAPPED or, ow;
631#endif 1188#endif
632} ANFD; 1189} ANFD;
633 1190
634/* stores the pending event set for a given watcher */ 1191/* stores the pending event set for a given watcher */
635typedef struct 1192typedef struct
… …
677 #undef VAR 1234 #undef VAR
678 }; 1235 };
679 #include "ev_wrap.h" 1236 #include "ev_wrap.h"
680 1237
681 static struct ev_loop default_loop_struct; 1238 static struct ev_loop default_loop_struct;
682 struct ev_loop *ev_default_loop_ptr; 1239 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
683 1240
684#else 1241#else
685 1242
686 ev_tstamp ev_rt_now; 1243 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
687 #define VAR(name,decl) static decl; 1244 #define VAR(name,decl) static decl;
688 #include "ev_vars.h" 1245 #include "ev_vars.h"
689 #undef VAR 1246 #undef VAR
690 1247
691 static int ev_default_loop_ptr; 1248 static int ev_default_loop_ptr;
692 1249
693#endif 1250#endif
694 1251
695#if EV_MINIMAL < 2 1252#if EV_FEATURE_API
696# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1253# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
697# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1254# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
698# define EV_INVOKE_PENDING invoke_cb (EV_A) 1255# define EV_INVOKE_PENDING invoke_cb (EV_A)
699#else 1256#else
700# define EV_RELEASE_CB (void)0 1257# define EV_RELEASE_CB (void)0
701# define EV_ACQUIRE_CB (void)0 1258# define EV_ACQUIRE_CB (void)0
702# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1259# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
703#endif 1260#endif
704 1261
705#define EVUNLOOP_RECURSE 0x80 1262#define EVBREAK_RECURSE 0x80
706 1263
707/*****************************************************************************/ 1264/*****************************************************************************/
708 1265
709#ifndef EV_HAVE_EV_TIME 1266#ifndef EV_HAVE_EV_TIME
710ev_tstamp 1267ev_tstamp
… …
754 if (delay > 0.) 1311 if (delay > 0.)
755 { 1312 {
756#if EV_USE_NANOSLEEP 1313#if EV_USE_NANOSLEEP
757 struct timespec ts; 1314 struct timespec ts;
758 1315
759 ts.tv_sec = (time_t)delay; 1316 EV_TS_SET (ts, delay);
760 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
761
762 nanosleep (&ts, 0); 1317 nanosleep (&ts, 0);
763#elif defined(_WIN32) 1318#elif defined(_WIN32)
764 Sleep ((unsigned long)(delay * 1e3)); 1319 Sleep ((unsigned long)(delay * 1e3));
765#else 1320#else
766 struct timeval tv; 1321 struct timeval tv;
767 1322
768 tv.tv_sec = (time_t)delay;
769 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
770
771 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1323 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
772 /* something not guaranteed by newer posix versions, but guaranteed */ 1324 /* something not guaranteed by newer posix versions, but guaranteed */
773 /* by older ones */ 1325 /* by older ones */
1326 EV_TV_SET (tv, delay);
774 select (0, 0, 0, 0, &tv); 1327 select (0, 0, 0, 0, &tv);
775#endif 1328#endif
776 } 1329 }
777} 1330}
778 1331
779/*****************************************************************************/ 1332/*****************************************************************************/
780 1333
781#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1334#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
782 1335
783/* find a suitable new size for the given array, */ 1336/* find a suitable new size for the given array, */
784/* hopefully by rounding to a ncie-to-malloc size */ 1337/* hopefully by rounding to a nice-to-malloc size */
785inline_size int 1338inline_size int
786array_nextsize (int elem, int cur, int cnt) 1339array_nextsize (int elem, int cur, int cnt)
787{ 1340{
788 int ncur = cur + 1; 1341 int ncur = cur + 1;
789 1342
790 do 1343 do
791 ncur <<= 1; 1344 ncur <<= 1;
792 while (cnt > ncur); 1345 while (cnt > ncur);
793 1346
794 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1347 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
795 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1348 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
796 { 1349 {
797 ncur *= elem; 1350 ncur *= elem;
798 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1351 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
799 ncur = ncur - sizeof (void *) * 4; 1352 ncur = ncur - sizeof (void *) * 4;
… …
801 } 1354 }
802 1355
803 return ncur; 1356 return ncur;
804} 1357}
805 1358
806static noinline void * 1359static void * noinline ecb_cold
807array_realloc (int elem, void *base, int *cur, int cnt) 1360array_realloc (int elem, void *base, int *cur, int cnt)
808{ 1361{
809 *cur = array_nextsize (elem, *cur, cnt); 1362 *cur = array_nextsize (elem, *cur, cnt);
810 return ev_realloc (base, elem * *cur); 1363 return ev_realloc (base, elem * *cur);
811} 1364}
… …
814 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1367 memset ((void *)(base), 0, sizeof (*(base)) * (count))
815 1368
816#define array_needsize(type,base,cur,cnt,init) \ 1369#define array_needsize(type,base,cur,cnt,init) \
817 if (expect_false ((cnt) > (cur))) \ 1370 if (expect_false ((cnt) > (cur))) \
818 { \ 1371 { \
819 int ocur_ = (cur); \ 1372 int ecb_unused ocur_ = (cur); \
820 (base) = (type *)array_realloc \ 1373 (base) = (type *)array_realloc \
821 (sizeof (type), (base), &(cur), (cnt)); \ 1374 (sizeof (type), (base), &(cur), (cnt)); \
822 init ((base) + (ocur_), (cur) - ocur_); \ 1375 init ((base) + (ocur_), (cur) - ocur_); \
823 } 1376 }
824 1377
… …
885} 1438}
886 1439
887/*****************************************************************************/ 1440/*****************************************************************************/
888 1441
889inline_speed void 1442inline_speed void
890fd_event_nc (EV_P_ int fd, int revents) 1443fd_event_nocheck (EV_P_ int fd, int revents)
891{ 1444{
892 ANFD *anfd = anfds + fd; 1445 ANFD *anfd = anfds + fd;
893 ev_io *w; 1446 ev_io *w;
894 1447
895 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1448 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
907fd_event (EV_P_ int fd, int revents) 1460fd_event (EV_P_ int fd, int revents)
908{ 1461{
909 ANFD *anfd = anfds + fd; 1462 ANFD *anfd = anfds + fd;
910 1463
911 if (expect_true (!anfd->reify)) 1464 if (expect_true (!anfd->reify))
912 fd_event_nc (EV_A_ fd, revents); 1465 fd_event_nocheck (EV_A_ fd, revents);
913} 1466}
914 1467
915void 1468void
916ev_feed_fd_event (EV_P_ int fd, int revents) 1469ev_feed_fd_event (EV_P_ int fd, int revents)
917{ 1470{
918 if (fd >= 0 && fd < anfdmax) 1471 if (fd >= 0 && fd < anfdmax)
919 fd_event_nc (EV_A_ fd, revents); 1472 fd_event_nocheck (EV_A_ fd, revents);
920} 1473}
921 1474
922/* make sure the external fd watch events are in-sync */ 1475/* make sure the external fd watch events are in-sync */
923/* with the kernel/libev internal state */ 1476/* with the kernel/libev internal state */
924inline_size void 1477inline_size void
925fd_reify (EV_P) 1478fd_reify (EV_P)
926{ 1479{
927 int i; 1480 int i;
928 1481
1482#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1483 for (i = 0; i < fdchangecnt; ++i)
1484 {
1485 int fd = fdchanges [i];
1486 ANFD *anfd = anfds + fd;
1487
1488 if (anfd->reify & EV__IOFDSET && anfd->head)
1489 {
1490 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1491
1492 if (handle != anfd->handle)
1493 {
1494 unsigned long arg;
1495
1496 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1497
1498 /* handle changed, but fd didn't - we need to do it in two steps */
1499 backend_modify (EV_A_ fd, anfd->events, 0);
1500 anfd->events = 0;
1501 anfd->handle = handle;
1502 }
1503 }
1504 }
1505#endif
1506
929 for (i = 0; i < fdchangecnt; ++i) 1507 for (i = 0; i < fdchangecnt; ++i)
930 { 1508 {
931 int fd = fdchanges [i]; 1509 int fd = fdchanges [i];
932 ANFD *anfd = anfds + fd; 1510 ANFD *anfd = anfds + fd;
933 ev_io *w; 1511 ev_io *w;
934 1512
935 unsigned char events = 0; 1513 unsigned char o_events = anfd->events;
1514 unsigned char o_reify = anfd->reify;
936 1515
937 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1516 anfd->reify = 0;
938 events |= (unsigned char)w->events;
939 1517
940#if EV_SELECT_IS_WINSOCKET 1518 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
941 if (events)
942 { 1519 {
943 unsigned long arg; 1520 anfd->events = 0;
944 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1521
945 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1522 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1523 anfd->events |= (unsigned char)w->events;
1524
1525 if (o_events != anfd->events)
1526 o_reify = EV__IOFDSET; /* actually |= */
946 } 1527 }
947#endif
948 1528
949 { 1529 if (o_reify & EV__IOFDSET)
950 unsigned char o_events = anfd->events;
951 unsigned char o_reify = anfd->reify;
952
953 anfd->reify = 0;
954 anfd->events = events;
955
956 if (o_events != events || o_reify & EV__IOFDSET)
957 backend_modify (EV_A_ fd, o_events, events); 1530 backend_modify (EV_A_ fd, o_events, anfd->events);
958 }
959 } 1531 }
960 1532
961 fdchangecnt = 0; 1533 fdchangecnt = 0;
962} 1534}
963 1535
… …
975 fdchanges [fdchangecnt - 1] = fd; 1547 fdchanges [fdchangecnt - 1] = fd;
976 } 1548 }
977} 1549}
978 1550
979/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1551/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
980inline_speed void 1552inline_speed void ecb_cold
981fd_kill (EV_P_ int fd) 1553fd_kill (EV_P_ int fd)
982{ 1554{
983 ev_io *w; 1555 ev_io *w;
984 1556
985 while ((w = (ev_io *)anfds [fd].head)) 1557 while ((w = (ev_io *)anfds [fd].head))
… …
987 ev_io_stop (EV_A_ w); 1559 ev_io_stop (EV_A_ w);
988 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1560 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
989 } 1561 }
990} 1562}
991 1563
992/* check whether the given fd is atcually valid, for error recovery */ 1564/* check whether the given fd is actually valid, for error recovery */
993inline_size int 1565inline_size int ecb_cold
994fd_valid (int fd) 1566fd_valid (int fd)
995{ 1567{
996#ifdef _WIN32 1568#ifdef _WIN32
997 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1569 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
998#else 1570#else
999 return fcntl (fd, F_GETFD) != -1; 1571 return fcntl (fd, F_GETFD) != -1;
1000#endif 1572#endif
1001} 1573}
1002 1574
1003/* called on EBADF to verify fds */ 1575/* called on EBADF to verify fds */
1004static void noinline 1576static void noinline ecb_cold
1005fd_ebadf (EV_P) 1577fd_ebadf (EV_P)
1006{ 1578{
1007 int fd; 1579 int fd;
1008 1580
1009 for (fd = 0; fd < anfdmax; ++fd) 1581 for (fd = 0; fd < anfdmax; ++fd)
… …
1011 if (!fd_valid (fd) && errno == EBADF) 1583 if (!fd_valid (fd) && errno == EBADF)
1012 fd_kill (EV_A_ fd); 1584 fd_kill (EV_A_ fd);
1013} 1585}
1014 1586
1015/* called on ENOMEM in select/poll to kill some fds and retry */ 1587/* called on ENOMEM in select/poll to kill some fds and retry */
1016static void noinline 1588static void noinline ecb_cold
1017fd_enomem (EV_P) 1589fd_enomem (EV_P)
1018{ 1590{
1019 int fd; 1591 int fd;
1020 1592
1021 for (fd = anfdmax; fd--; ) 1593 for (fd = anfdmax; fd--; )
… …
1039 anfds [fd].emask = 0; 1611 anfds [fd].emask = 0;
1040 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1612 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1041 } 1613 }
1042} 1614}
1043 1615
1616/* used to prepare libev internal fd's */
1617/* this is not fork-safe */
1618inline_speed void
1619fd_intern (int fd)
1620{
1621#ifdef _WIN32
1622 unsigned long arg = 1;
1623 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1624#else
1625 fcntl (fd, F_SETFD, FD_CLOEXEC);
1626 fcntl (fd, F_SETFL, O_NONBLOCK);
1627#endif
1628}
1629
1044/*****************************************************************************/ 1630/*****************************************************************************/
1045 1631
1046/* 1632/*
1047 * the heap functions want a real array index. array index 0 uis guaranteed to not 1633 * the heap functions want a real array index. array index 0 is guaranteed to not
1048 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1634 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1049 * the branching factor of the d-tree. 1635 * the branching factor of the d-tree.
1050 */ 1636 */
1051 1637
1052/* 1638/*
… …
1200 1786
1201static ANSIG signals [EV_NSIG - 1]; 1787static ANSIG signals [EV_NSIG - 1];
1202 1788
1203/*****************************************************************************/ 1789/*****************************************************************************/
1204 1790
1205/* used to prepare libev internal fd's */ 1791#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1206/* this is not fork-safe */
1207inline_speed void
1208fd_intern (int fd)
1209{
1210#ifdef _WIN32
1211 unsigned long arg = 1;
1212 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1213#else
1214 fcntl (fd, F_SETFD, FD_CLOEXEC);
1215 fcntl (fd, F_SETFL, O_NONBLOCK);
1216#endif
1217}
1218 1792
1219static void noinline 1793static void noinline ecb_cold
1220evpipe_init (EV_P) 1794evpipe_init (EV_P)
1221{ 1795{
1222 if (!ev_is_active (&pipe_w)) 1796 if (!ev_is_active (&pipe_w))
1223 { 1797 {
1224#if EV_USE_EVENTFD 1798# if EV_USE_EVENTFD
1225 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1799 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1226 if (evfd < 0 && errno == EINVAL) 1800 if (evfd < 0 && errno == EINVAL)
1227 evfd = eventfd (0, 0); 1801 evfd = eventfd (0, 0);
1228 1802
1229 if (evfd >= 0) 1803 if (evfd >= 0)
… …
1231 evpipe [0] = -1; 1805 evpipe [0] = -1;
1232 fd_intern (evfd); /* doing it twice doesn't hurt */ 1806 fd_intern (evfd); /* doing it twice doesn't hurt */
1233 ev_io_set (&pipe_w, evfd, EV_READ); 1807 ev_io_set (&pipe_w, evfd, EV_READ);
1234 } 1808 }
1235 else 1809 else
1236#endif 1810# endif
1237 { 1811 {
1238 while (pipe (evpipe)) 1812 while (pipe (evpipe))
1239 ev_syserr ("(libev) error creating signal/async pipe"); 1813 ev_syserr ("(libev) error creating signal/async pipe");
1240 1814
1241 fd_intern (evpipe [0]); 1815 fd_intern (evpipe [0]);
… …
1246 ev_io_start (EV_A_ &pipe_w); 1820 ev_io_start (EV_A_ &pipe_w);
1247 ev_unref (EV_A); /* watcher should not keep loop alive */ 1821 ev_unref (EV_A); /* watcher should not keep loop alive */
1248 } 1822 }
1249} 1823}
1250 1824
1251inline_size void 1825inline_speed void
1252evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1826evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1253{ 1827{
1254 if (!*flag) 1828 if (expect_true (*flag))
1829 return;
1830
1831 *flag = 1;
1832
1833 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1834
1835 pipe_write_skipped = 1;
1836
1837 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1838
1839 if (pipe_write_wanted)
1255 { 1840 {
1841 int old_errno;
1842
1843 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1844
1256 int old_errno = errno; /* save errno because write might clobber it */ 1845 old_errno = errno; /* save errno because write will clobber it */
1257
1258 *flag = 1;
1259 1846
1260#if EV_USE_EVENTFD 1847#if EV_USE_EVENTFD
1261 if (evfd >= 0) 1848 if (evfd >= 0)
1262 { 1849 {
1263 uint64_t counter = 1; 1850 uint64_t counter = 1;
1264 write (evfd, &counter, sizeof (uint64_t)); 1851 write (evfd, &counter, sizeof (uint64_t));
1265 } 1852 }
1266 else 1853 else
1267#endif 1854#endif
1855 {
1856 /* win32 people keep sending patches that change this write() to send() */
1857 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1858 /* so when you think this write should be a send instead, please find out */
1859 /* where your send() is from - it's definitely not the microsoft send, and */
1860 /* tell me. thank you. */
1268 write (evpipe [1], &old_errno, 1); 1861 write (evpipe [1], &(evpipe [1]), 1);
1862 }
1269 1863
1270 errno = old_errno; 1864 errno = old_errno;
1271 } 1865 }
1272} 1866}
1273 1867
… …
1276static void 1870static void
1277pipecb (EV_P_ ev_io *iow, int revents) 1871pipecb (EV_P_ ev_io *iow, int revents)
1278{ 1872{
1279 int i; 1873 int i;
1280 1874
1875 if (revents & EV_READ)
1876 {
1281#if EV_USE_EVENTFD 1877#if EV_USE_EVENTFD
1282 if (evfd >= 0) 1878 if (evfd >= 0)
1283 { 1879 {
1284 uint64_t counter; 1880 uint64_t counter;
1285 read (evfd, &counter, sizeof (uint64_t)); 1881 read (evfd, &counter, sizeof (uint64_t));
1286 } 1882 }
1287 else 1883 else
1288#endif 1884#endif
1289 { 1885 {
1290 char dummy; 1886 char dummy;
1887 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1291 read (evpipe [0], &dummy, 1); 1888 read (evpipe [0], &dummy, 1);
1889 }
1292 } 1890 }
1293 1891
1892 pipe_write_skipped = 0;
1893
1894#if EV_SIGNAL_ENABLE
1294 if (sig_pending) 1895 if (sig_pending)
1295 { 1896 {
1296 sig_pending = 0; 1897 sig_pending = 0;
1297 1898
1298 for (i = EV_NSIG - 1; i--; ) 1899 for (i = EV_NSIG - 1; i--; )
1299 if (expect_false (signals [i].pending)) 1900 if (expect_false (signals [i].pending))
1300 ev_feed_signal_event (EV_A_ i + 1); 1901 ev_feed_signal_event (EV_A_ i + 1);
1301 } 1902 }
1903#endif
1302 1904
1303#if EV_ASYNC_ENABLE 1905#if EV_ASYNC_ENABLE
1304 if (async_pending) 1906 if (async_pending)
1305 { 1907 {
1306 async_pending = 0; 1908 async_pending = 0;
… …
1315#endif 1917#endif
1316} 1918}
1317 1919
1318/*****************************************************************************/ 1920/*****************************************************************************/
1319 1921
1922void
1923ev_feed_signal (int signum)
1924{
1925#if EV_MULTIPLICITY
1926 EV_P = signals [signum - 1].loop;
1927
1928 if (!EV_A)
1929 return;
1930#endif
1931
1932 if (!ev_active (&pipe_w))
1933 return;
1934
1935 signals [signum - 1].pending = 1;
1936 evpipe_write (EV_A_ &sig_pending);
1937}
1938
1320static void 1939static void
1321ev_sighandler (int signum) 1940ev_sighandler (int signum)
1322{ 1941{
1323#if EV_MULTIPLICITY
1324 EV_P = signals [signum - 1].loop;
1325#endif
1326
1327#ifdef _WIN32 1942#ifdef _WIN32
1328 signal (signum, ev_sighandler); 1943 signal (signum, ev_sighandler);
1329#endif 1944#endif
1330 1945
1331 signals [signum - 1].pending = 1; 1946 ev_feed_signal (signum);
1332 evpipe_write (EV_A_ &sig_pending);
1333} 1947}
1334 1948
1335void noinline 1949void noinline
1336ev_feed_signal_event (EV_P_ int signum) 1950ev_feed_signal_event (EV_P_ int signum)
1337{ 1951{
… …
1374 break; 1988 break;
1375 } 1989 }
1376} 1990}
1377#endif 1991#endif
1378 1992
1993#endif
1994
1379/*****************************************************************************/ 1995/*****************************************************************************/
1380 1996
1997#if EV_CHILD_ENABLE
1381static WL childs [EV_PID_HASHSIZE]; 1998static WL childs [EV_PID_HASHSIZE];
1382
1383#ifndef _WIN32
1384 1999
1385static ev_signal childev; 2000static ev_signal childev;
1386 2001
1387#ifndef WIFCONTINUED 2002#ifndef WIFCONTINUED
1388# define WIFCONTINUED(status) 0 2003# define WIFCONTINUED(status) 0
… …
1393child_reap (EV_P_ int chain, int pid, int status) 2008child_reap (EV_P_ int chain, int pid, int status)
1394{ 2009{
1395 ev_child *w; 2010 ev_child *w;
1396 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2011 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1397 2012
1398 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2013 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1399 { 2014 {
1400 if ((w->pid == pid || !w->pid) 2015 if ((w->pid == pid || !w->pid)
1401 && (!traced || (w->flags & 1))) 2016 && (!traced || (w->flags & 1)))
1402 { 2017 {
1403 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2018 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1428 /* make sure we are called again until all children have been reaped */ 2043 /* make sure we are called again until all children have been reaped */
1429 /* we need to do it this way so that the callback gets called before we continue */ 2044 /* we need to do it this way so that the callback gets called before we continue */
1430 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2045 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1431 2046
1432 child_reap (EV_A_ pid, pid, status); 2047 child_reap (EV_A_ pid, pid, status);
1433 if (EV_PID_HASHSIZE > 1) 2048 if ((EV_PID_HASHSIZE) > 1)
1434 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2049 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1435} 2050}
1436 2051
1437#endif 2052#endif
1438 2053
1439/*****************************************************************************/ 2054/*****************************************************************************/
1440 2055
2056#if EV_USE_IOCP
2057# include "ev_iocp.c"
2058#endif
1441#if EV_USE_PORT 2059#if EV_USE_PORT
1442# include "ev_port.c" 2060# include "ev_port.c"
1443#endif 2061#endif
1444#if EV_USE_KQUEUE 2062#if EV_USE_KQUEUE
1445# include "ev_kqueue.c" 2063# include "ev_kqueue.c"
… …
1452#endif 2070#endif
1453#if EV_USE_SELECT 2071#if EV_USE_SELECT
1454# include "ev_select.c" 2072# include "ev_select.c"
1455#endif 2073#endif
1456 2074
1457int 2075int ecb_cold
1458ev_version_major (void) 2076ev_version_major (void)
1459{ 2077{
1460 return EV_VERSION_MAJOR; 2078 return EV_VERSION_MAJOR;
1461} 2079}
1462 2080
1463int 2081int ecb_cold
1464ev_version_minor (void) 2082ev_version_minor (void)
1465{ 2083{
1466 return EV_VERSION_MINOR; 2084 return EV_VERSION_MINOR;
1467} 2085}
1468 2086
1469/* return true if we are running with elevated privileges and should ignore env variables */ 2087/* return true if we are running with elevated privileges and should ignore env variables */
1470int inline_size 2088int inline_size ecb_cold
1471enable_secure (void) 2089enable_secure (void)
1472{ 2090{
1473#ifdef _WIN32 2091#ifdef _WIN32
1474 return 0; 2092 return 0;
1475#else 2093#else
1476 return getuid () != geteuid () 2094 return getuid () != geteuid ()
1477 || getgid () != getegid (); 2095 || getgid () != getegid ();
1478#endif 2096#endif
1479} 2097}
1480 2098
1481unsigned int 2099unsigned int ecb_cold
1482ev_supported_backends (void) 2100ev_supported_backends (void)
1483{ 2101{
1484 unsigned int flags = 0; 2102 unsigned int flags = 0;
1485 2103
1486 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2104 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1490 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2108 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1491 2109
1492 return flags; 2110 return flags;
1493} 2111}
1494 2112
1495unsigned int 2113unsigned int ecb_cold
1496ev_recommended_backends (void) 2114ev_recommended_backends (void)
1497{ 2115{
1498 unsigned int flags = ev_supported_backends (); 2116 unsigned int flags = ev_supported_backends ();
1499 2117
1500#ifndef __NetBSD__ 2118#ifndef __NetBSD__
… …
1505#ifdef __APPLE__ 2123#ifdef __APPLE__
1506 /* only select works correctly on that "unix-certified" platform */ 2124 /* only select works correctly on that "unix-certified" platform */
1507 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2125 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1508 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2126 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1509#endif 2127#endif
2128#ifdef __FreeBSD__
2129 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2130#endif
1510 2131
1511 return flags; 2132 return flags;
1512} 2133}
1513 2134
1514unsigned int 2135unsigned int ecb_cold
1515ev_embeddable_backends (void) 2136ev_embeddable_backends (void)
1516{ 2137{
1517 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2138 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1518 2139
1519 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2140 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1520 /* please fix it and tell me how to detect the fix */ 2141 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1521 flags &= ~EVBACKEND_EPOLL; 2142 flags &= ~EVBACKEND_EPOLL;
1522 2143
1523 return flags; 2144 return flags;
1524} 2145}
1525 2146
1526unsigned int 2147unsigned int
1527ev_backend (EV_P) 2148ev_backend (EV_P)
1528{ 2149{
1529 return backend; 2150 return backend;
1530} 2151}
1531 2152
1532#if EV_MINIMAL < 2 2153#if EV_FEATURE_API
1533unsigned int 2154unsigned int
1534ev_loop_count (EV_P) 2155ev_iteration (EV_P)
1535{ 2156{
1536 return loop_count; 2157 return loop_count;
1537} 2158}
1538 2159
1539unsigned int 2160unsigned int
1540ev_loop_depth (EV_P) 2161ev_depth (EV_P)
1541{ 2162{
1542 return loop_depth; 2163 return loop_depth;
1543} 2164}
1544 2165
1545void 2166void
… …
1564ev_userdata (EV_P) 2185ev_userdata (EV_P)
1565{ 2186{
1566 return userdata; 2187 return userdata;
1567} 2188}
1568 2189
2190void
1569void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2191ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1570{ 2192{
1571 invoke_cb = invoke_pending_cb; 2193 invoke_cb = invoke_pending_cb;
1572} 2194}
1573 2195
2196void
1574void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2197ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1575{ 2198{
1576 release_cb = release; 2199 release_cb = release;
1577 acquire_cb = acquire; 2200 acquire_cb = acquire;
1578} 2201}
1579#endif 2202#endif
1580 2203
1581/* initialise a loop structure, must be zero-initialised */ 2204/* initialise a loop structure, must be zero-initialised */
1582static void noinline 2205static void noinline ecb_cold
1583loop_init (EV_P_ unsigned int flags) 2206loop_init (EV_P_ unsigned int flags)
1584{ 2207{
1585 if (!backend) 2208 if (!backend)
1586 { 2209 {
2210 origflags = flags;
2211
1587#if EV_USE_REALTIME 2212#if EV_USE_REALTIME
1588 if (!have_realtime) 2213 if (!have_realtime)
1589 { 2214 {
1590 struct timespec ts; 2215 struct timespec ts;
1591 2216
… …
1613 if (!(flags & EVFLAG_NOENV) 2238 if (!(flags & EVFLAG_NOENV)
1614 && !enable_secure () 2239 && !enable_secure ()
1615 && getenv ("LIBEV_FLAGS")) 2240 && getenv ("LIBEV_FLAGS"))
1616 flags = atoi (getenv ("LIBEV_FLAGS")); 2241 flags = atoi (getenv ("LIBEV_FLAGS"));
1617 2242
1618 ev_rt_now = ev_time (); 2243 ev_rt_now = ev_time ();
1619 mn_now = get_clock (); 2244 mn_now = get_clock ();
1620 now_floor = mn_now; 2245 now_floor = mn_now;
1621 rtmn_diff = ev_rt_now - mn_now; 2246 rtmn_diff = ev_rt_now - mn_now;
1622#if EV_MINIMAL < 2 2247#if EV_FEATURE_API
1623 invoke_cb = ev_invoke_pending; 2248 invoke_cb = ev_invoke_pending;
1624#endif 2249#endif
1625 2250
1626 io_blocktime = 0.; 2251 io_blocktime = 0.;
1627 timeout_blocktime = 0.; 2252 timeout_blocktime = 0.;
1628 backend = 0; 2253 backend = 0;
1629 backend_fd = -1; 2254 backend_fd = -1;
1630 sig_pending = 0; 2255 sig_pending = 0;
1631#if EV_ASYNC_ENABLE 2256#if EV_ASYNC_ENABLE
1632 async_pending = 0; 2257 async_pending = 0;
1633#endif 2258#endif
2259 pipe_write_skipped = 0;
2260 pipe_write_wanted = 0;
1634#if EV_USE_INOTIFY 2261#if EV_USE_INOTIFY
1635 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2262 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1636#endif 2263#endif
1637#if EV_USE_SIGNALFD 2264#if EV_USE_SIGNALFD
1638 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2265 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1639#endif 2266#endif
1640 2267
1641 if (!(flags & 0x0000ffffU)) 2268 if (!(flags & EVBACKEND_MASK))
1642 flags |= ev_recommended_backends (); 2269 flags |= ev_recommended_backends ();
1643 2270
2271#if EV_USE_IOCP
2272 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2273#endif
1644#if EV_USE_PORT 2274#if EV_USE_PORT
1645 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2275 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1646#endif 2276#endif
1647#if EV_USE_KQUEUE 2277#if EV_USE_KQUEUE
1648 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2278 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1657 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2287 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1658#endif 2288#endif
1659 2289
1660 ev_prepare_init (&pending_w, pendingcb); 2290 ev_prepare_init (&pending_w, pendingcb);
1661 2291
2292#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1662 ev_init (&pipe_w, pipecb); 2293 ev_init (&pipe_w, pipecb);
1663 ev_set_priority (&pipe_w, EV_MAXPRI); 2294 ev_set_priority (&pipe_w, EV_MAXPRI);
2295#endif
1664 } 2296 }
1665} 2297}
1666 2298
1667/* free up a loop structure */ 2299/* free up a loop structure */
1668static void noinline 2300void ecb_cold
1669loop_destroy (EV_P) 2301ev_loop_destroy (EV_P)
1670{ 2302{
1671 int i; 2303 int i;
2304
2305#if EV_MULTIPLICITY
2306 /* mimic free (0) */
2307 if (!EV_A)
2308 return;
2309#endif
2310
2311#if EV_CLEANUP_ENABLE
2312 /* queue cleanup watchers (and execute them) */
2313 if (expect_false (cleanupcnt))
2314 {
2315 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2316 EV_INVOKE_PENDING;
2317 }
2318#endif
2319
2320#if EV_CHILD_ENABLE
2321 if (ev_is_active (&childev))
2322 {
2323 ev_ref (EV_A); /* child watcher */
2324 ev_signal_stop (EV_A_ &childev);
2325 }
2326#endif
1672 2327
1673 if (ev_is_active (&pipe_w)) 2328 if (ev_is_active (&pipe_w))
1674 { 2329 {
1675 /*ev_ref (EV_A);*/ 2330 /*ev_ref (EV_A);*/
1676 /*ev_io_stop (EV_A_ &pipe_w);*/ 2331 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1698#endif 2353#endif
1699 2354
1700 if (backend_fd >= 0) 2355 if (backend_fd >= 0)
1701 close (backend_fd); 2356 close (backend_fd);
1702 2357
2358#if EV_USE_IOCP
2359 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2360#endif
1703#if EV_USE_PORT 2361#if EV_USE_PORT
1704 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2362 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1705#endif 2363#endif
1706#if EV_USE_KQUEUE 2364#if EV_USE_KQUEUE
1707 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2365 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1734 array_free (periodic, EMPTY); 2392 array_free (periodic, EMPTY);
1735#endif 2393#endif
1736#if EV_FORK_ENABLE 2394#if EV_FORK_ENABLE
1737 array_free (fork, EMPTY); 2395 array_free (fork, EMPTY);
1738#endif 2396#endif
2397#if EV_CLEANUP_ENABLE
2398 array_free (cleanup, EMPTY);
2399#endif
1739 array_free (prepare, EMPTY); 2400 array_free (prepare, EMPTY);
1740 array_free (check, EMPTY); 2401 array_free (check, EMPTY);
1741#if EV_ASYNC_ENABLE 2402#if EV_ASYNC_ENABLE
1742 array_free (async, EMPTY); 2403 array_free (async, EMPTY);
1743#endif 2404#endif
1744 2405
1745 backend = 0; 2406 backend = 0;
2407
2408#if EV_MULTIPLICITY
2409 if (ev_is_default_loop (EV_A))
2410#endif
2411 ev_default_loop_ptr = 0;
2412#if EV_MULTIPLICITY
2413 else
2414 ev_free (EV_A);
2415#endif
1746} 2416}
1747 2417
1748#if EV_USE_INOTIFY 2418#if EV_USE_INOTIFY
1749inline_size void infy_fork (EV_P); 2419inline_size void infy_fork (EV_P);
1750#endif 2420#endif
… …
1765 infy_fork (EV_A); 2435 infy_fork (EV_A);
1766#endif 2436#endif
1767 2437
1768 if (ev_is_active (&pipe_w)) 2438 if (ev_is_active (&pipe_w))
1769 { 2439 {
1770 /* this "locks" the handlers against writing to the pipe */ 2440 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1771 /* while we modify the fd vars */
1772 sig_pending = 1;
1773#if EV_ASYNC_ENABLE
1774 async_pending = 1;
1775#endif
1776 2441
1777 ev_ref (EV_A); 2442 ev_ref (EV_A);
1778 ev_io_stop (EV_A_ &pipe_w); 2443 ev_io_stop (EV_A_ &pipe_w);
1779 2444
1780#if EV_USE_EVENTFD 2445#if EV_USE_EVENTFD
… …
1786 { 2451 {
1787 EV_WIN32_CLOSE_FD (evpipe [0]); 2452 EV_WIN32_CLOSE_FD (evpipe [0]);
1788 EV_WIN32_CLOSE_FD (evpipe [1]); 2453 EV_WIN32_CLOSE_FD (evpipe [1]);
1789 } 2454 }
1790 2455
2456#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1791 evpipe_init (EV_A); 2457 evpipe_init (EV_A);
1792 /* now iterate over everything, in case we missed something */ 2458 /* now iterate over everything, in case we missed something */
1793 pipecb (EV_A_ &pipe_w, EV_READ); 2459 pipecb (EV_A_ &pipe_w, EV_READ);
2460#endif
1794 } 2461 }
1795 2462
1796 postfork = 0; 2463 postfork = 0;
1797} 2464}
1798 2465
1799#if EV_MULTIPLICITY 2466#if EV_MULTIPLICITY
1800 2467
1801struct ev_loop * 2468struct ev_loop * ecb_cold
1802ev_loop_new (unsigned int flags) 2469ev_loop_new (unsigned int flags)
1803{ 2470{
1804 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2471 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1805 2472
1806 memset (EV_A, 0, sizeof (struct ev_loop)); 2473 memset (EV_A, 0, sizeof (struct ev_loop));
1807 loop_init (EV_A_ flags); 2474 loop_init (EV_A_ flags);
1808 2475
1809 if (ev_backend (EV_A)) 2476 if (ev_backend (EV_A))
1810 return EV_A; 2477 return EV_A;
1811 2478
2479 ev_free (EV_A);
1812 return 0; 2480 return 0;
1813} 2481}
1814 2482
1815void
1816ev_loop_destroy (EV_P)
1817{
1818 loop_destroy (EV_A);
1819 ev_free (loop);
1820}
1821
1822void
1823ev_loop_fork (EV_P)
1824{
1825 postfork = 1; /* must be in line with ev_default_fork */
1826}
1827#endif /* multiplicity */ 2483#endif /* multiplicity */
1828 2484
1829#if EV_VERIFY 2485#if EV_VERIFY
1830static void noinline 2486static void noinline ecb_cold
1831verify_watcher (EV_P_ W w) 2487verify_watcher (EV_P_ W w)
1832{ 2488{
1833 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2489 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1834 2490
1835 if (w->pending) 2491 if (w->pending)
1836 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2492 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1837} 2493}
1838 2494
1839static void noinline 2495static void noinline ecb_cold
1840verify_heap (EV_P_ ANHE *heap, int N) 2496verify_heap (EV_P_ ANHE *heap, int N)
1841{ 2497{
1842 int i; 2498 int i;
1843 2499
1844 for (i = HEAP0; i < N + HEAP0; ++i) 2500 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1849 2505
1850 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2506 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1851 } 2507 }
1852} 2508}
1853 2509
1854static void noinline 2510static void noinline ecb_cold
1855array_verify (EV_P_ W *ws, int cnt) 2511array_verify (EV_P_ W *ws, int cnt)
1856{ 2512{
1857 while (cnt--) 2513 while (cnt--)
1858 { 2514 {
1859 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2515 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1860 verify_watcher (EV_A_ ws [cnt]); 2516 verify_watcher (EV_A_ ws [cnt]);
1861 } 2517 }
1862} 2518}
1863#endif 2519#endif
1864 2520
1865#if EV_MINIMAL < 2 2521#if EV_FEATURE_API
1866void 2522void ecb_cold
1867ev_loop_verify (EV_P) 2523ev_verify (EV_P)
1868{ 2524{
1869#if EV_VERIFY 2525#if EV_VERIFY
1870 int i; 2526 int i;
1871 WL w; 2527 WL w;
1872 2528
… …
1906#if EV_FORK_ENABLE 2562#if EV_FORK_ENABLE
1907 assert (forkmax >= forkcnt); 2563 assert (forkmax >= forkcnt);
1908 array_verify (EV_A_ (W *)forks, forkcnt); 2564 array_verify (EV_A_ (W *)forks, forkcnt);
1909#endif 2565#endif
1910 2566
2567#if EV_CLEANUP_ENABLE
2568 assert (cleanupmax >= cleanupcnt);
2569 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2570#endif
2571
1911#if EV_ASYNC_ENABLE 2572#if EV_ASYNC_ENABLE
1912 assert (asyncmax >= asynccnt); 2573 assert (asyncmax >= asynccnt);
1913 array_verify (EV_A_ (W *)asyncs, asynccnt); 2574 array_verify (EV_A_ (W *)asyncs, asynccnt);
1914#endif 2575#endif
1915 2576
2577#if EV_PREPARE_ENABLE
1916 assert (preparemax >= preparecnt); 2578 assert (preparemax >= preparecnt);
1917 array_verify (EV_A_ (W *)prepares, preparecnt); 2579 array_verify (EV_A_ (W *)prepares, preparecnt);
2580#endif
1918 2581
2582#if EV_CHECK_ENABLE
1919 assert (checkmax >= checkcnt); 2583 assert (checkmax >= checkcnt);
1920 array_verify (EV_A_ (W *)checks, checkcnt); 2584 array_verify (EV_A_ (W *)checks, checkcnt);
2585#endif
1921 2586
1922# if 0 2587# if 0
2588#if EV_CHILD_ENABLE
1923 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2589 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1924 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2590 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2591#endif
1925# endif 2592# endif
1926#endif 2593#endif
1927} 2594}
1928#endif 2595#endif
1929 2596
1930#if EV_MULTIPLICITY 2597#if EV_MULTIPLICITY
1931struct ev_loop * 2598struct ev_loop * ecb_cold
1932ev_default_loop_init (unsigned int flags)
1933#else 2599#else
1934int 2600int
2601#endif
1935ev_default_loop (unsigned int flags) 2602ev_default_loop (unsigned int flags)
1936#endif
1937{ 2603{
1938 if (!ev_default_loop_ptr) 2604 if (!ev_default_loop_ptr)
1939 { 2605 {
1940#if EV_MULTIPLICITY 2606#if EV_MULTIPLICITY
1941 EV_P = ev_default_loop_ptr = &default_loop_struct; 2607 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1945 2611
1946 loop_init (EV_A_ flags); 2612 loop_init (EV_A_ flags);
1947 2613
1948 if (ev_backend (EV_A)) 2614 if (ev_backend (EV_A))
1949 { 2615 {
1950#ifndef _WIN32 2616#if EV_CHILD_ENABLE
1951 ev_signal_init (&childev, childcb, SIGCHLD); 2617 ev_signal_init (&childev, childcb, SIGCHLD);
1952 ev_set_priority (&childev, EV_MAXPRI); 2618 ev_set_priority (&childev, EV_MAXPRI);
1953 ev_signal_start (EV_A_ &childev); 2619 ev_signal_start (EV_A_ &childev);
1954 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2620 ev_unref (EV_A); /* child watcher should not keep loop alive */
1955#endif 2621#endif
… …
1960 2626
1961 return ev_default_loop_ptr; 2627 return ev_default_loop_ptr;
1962} 2628}
1963 2629
1964void 2630void
1965ev_default_destroy (void) 2631ev_loop_fork (EV_P)
1966{ 2632{
1967#if EV_MULTIPLICITY
1968 EV_P = ev_default_loop_ptr;
1969#endif
1970
1971 ev_default_loop_ptr = 0;
1972
1973#ifndef _WIN32
1974 ev_ref (EV_A); /* child watcher */
1975 ev_signal_stop (EV_A_ &childev);
1976#endif
1977
1978 loop_destroy (EV_A);
1979}
1980
1981void
1982ev_default_fork (void)
1983{
1984#if EV_MULTIPLICITY
1985 EV_P = ev_default_loop_ptr;
1986#endif
1987
1988 postfork = 1; /* must be in line with ev_loop_fork */ 2633 postfork = 1; /* must be in line with ev_default_fork */
1989} 2634}
1990 2635
1991/*****************************************************************************/ 2636/*****************************************************************************/
1992 2637
1993void 2638void
… …
2015 2660
2016 for (pri = NUMPRI; pri--; ) 2661 for (pri = NUMPRI; pri--; )
2017 while (pendingcnt [pri]) 2662 while (pendingcnt [pri])
2018 { 2663 {
2019 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2664 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2020
2021 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2022 /* ^ this is no longer true, as pending_w could be here */
2023 2665
2024 p->w->pending = 0; 2666 p->w->pending = 0;
2025 EV_CB_INVOKE (p->w, p->events); 2667 EV_CB_INVOKE (p->w, p->events);
2026 EV_FREQUENT_CHECK; 2668 EV_FREQUENT_CHECK;
2027 } 2669 }
… …
2084 EV_FREQUENT_CHECK; 2726 EV_FREQUENT_CHECK;
2085 feed_reverse (EV_A_ (W)w); 2727 feed_reverse (EV_A_ (W)w);
2086 } 2728 }
2087 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2729 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2088 2730
2089 feed_reverse_done (EV_A_ EV_TIMEOUT); 2731 feed_reverse_done (EV_A_ EV_TIMER);
2090 } 2732 }
2091} 2733}
2092 2734
2093#if EV_PERIODIC_ENABLE 2735#if EV_PERIODIC_ENABLE
2736
2737static void noinline
2738periodic_recalc (EV_P_ ev_periodic *w)
2739{
2740 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2741 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2742
2743 /* the above almost always errs on the low side */
2744 while (at <= ev_rt_now)
2745 {
2746 ev_tstamp nat = at + w->interval;
2747
2748 /* when resolution fails us, we use ev_rt_now */
2749 if (expect_false (nat == at))
2750 {
2751 at = ev_rt_now;
2752 break;
2753 }
2754
2755 at = nat;
2756 }
2757
2758 ev_at (w) = at;
2759}
2760
2094/* make periodics pending */ 2761/* make periodics pending */
2095inline_size void 2762inline_size void
2096periodics_reify (EV_P) 2763periodics_reify (EV_P)
2097{ 2764{
2098 EV_FREQUENT_CHECK; 2765 EV_FREQUENT_CHECK;
… …
2117 ANHE_at_cache (periodics [HEAP0]); 2784 ANHE_at_cache (periodics [HEAP0]);
2118 downheap (periodics, periodiccnt, HEAP0); 2785 downheap (periodics, periodiccnt, HEAP0);
2119 } 2786 }
2120 else if (w->interval) 2787 else if (w->interval)
2121 { 2788 {
2122 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2789 periodic_recalc (EV_A_ w);
2123 /* if next trigger time is not sufficiently in the future, put it there */
2124 /* this might happen because of floating point inexactness */
2125 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2126 {
2127 ev_at (w) += w->interval;
2128
2129 /* if interval is unreasonably low we might still have a time in the past */
2130 /* so correct this. this will make the periodic very inexact, but the user */
2131 /* has effectively asked to get triggered more often than possible */
2132 if (ev_at (w) < ev_rt_now)
2133 ev_at (w) = ev_rt_now;
2134 }
2135
2136 ANHE_at_cache (periodics [HEAP0]); 2790 ANHE_at_cache (periodics [HEAP0]);
2137 downheap (periodics, periodiccnt, HEAP0); 2791 downheap (periodics, periodiccnt, HEAP0);
2138 } 2792 }
2139 else 2793 else
2140 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2794 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2147 feed_reverse_done (EV_A_ EV_PERIODIC); 2801 feed_reverse_done (EV_A_ EV_PERIODIC);
2148 } 2802 }
2149} 2803}
2150 2804
2151/* simply recalculate all periodics */ 2805/* simply recalculate all periodics */
2152/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2806/* TODO: maybe ensure that at least one event happens when jumping forward? */
2153static void noinline 2807static void noinline ecb_cold
2154periodics_reschedule (EV_P) 2808periodics_reschedule (EV_P)
2155{ 2809{
2156 int i; 2810 int i;
2157 2811
2158 /* adjust periodics after time jump */ 2812 /* adjust periodics after time jump */
… …
2161 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2815 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2162 2816
2163 if (w->reschedule_cb) 2817 if (w->reschedule_cb)
2164 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2818 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2165 else if (w->interval) 2819 else if (w->interval)
2166 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2820 periodic_recalc (EV_A_ w);
2167 2821
2168 ANHE_at_cache (periodics [i]); 2822 ANHE_at_cache (periodics [i]);
2169 } 2823 }
2170 2824
2171 reheap (periodics, periodiccnt); 2825 reheap (periodics, periodiccnt);
2172} 2826}
2173#endif 2827#endif
2174 2828
2175/* adjust all timers by a given offset */ 2829/* adjust all timers by a given offset */
2176static void noinline 2830static void noinline ecb_cold
2177timers_reschedule (EV_P_ ev_tstamp adjust) 2831timers_reschedule (EV_P_ ev_tstamp adjust)
2178{ 2832{
2179 int i; 2833 int i;
2180 2834
2181 for (i = 0; i < timercnt; ++i) 2835 for (i = 0; i < timercnt; ++i)
… …
2218 * doesn't hurt either as we only do this on time-jumps or 2872 * doesn't hurt either as we only do this on time-jumps or
2219 * in the unlikely event of having been preempted here. 2873 * in the unlikely event of having been preempted here.
2220 */ 2874 */
2221 for (i = 4; --i; ) 2875 for (i = 4; --i; )
2222 { 2876 {
2877 ev_tstamp diff;
2223 rtmn_diff = ev_rt_now - mn_now; 2878 rtmn_diff = ev_rt_now - mn_now;
2224 2879
2880 diff = odiff - rtmn_diff;
2881
2225 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2882 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2226 return; /* all is well */ 2883 return; /* all is well */
2227 2884
2228 ev_rt_now = ev_time (); 2885 ev_rt_now = ev_time ();
2229 mn_now = get_clock (); 2886 mn_now = get_clock ();
2230 now_floor = mn_now; 2887 now_floor = mn_now;
… …
2253 mn_now = ev_rt_now; 2910 mn_now = ev_rt_now;
2254 } 2911 }
2255} 2912}
2256 2913
2257void 2914void
2258ev_loop (EV_P_ int flags) 2915ev_run (EV_P_ int flags)
2259{ 2916{
2260#if EV_MINIMAL < 2 2917#if EV_FEATURE_API
2261 ++loop_depth; 2918 ++loop_depth;
2262#endif 2919#endif
2263 2920
2264 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2921 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2265 2922
2266 loop_done = EVUNLOOP_CANCEL; 2923 loop_done = EVBREAK_CANCEL;
2267 2924
2268 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2925 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2269 2926
2270 do 2927 do
2271 { 2928 {
2272#if EV_VERIFY >= 2 2929#if EV_VERIFY >= 2
2273 ev_loop_verify (EV_A); 2930 ev_verify (EV_A);
2274#endif 2931#endif
2275 2932
2276#ifndef _WIN32 2933#ifndef _WIN32
2277 if (expect_false (curpid)) /* penalise the forking check even more */ 2934 if (expect_false (curpid)) /* penalise the forking check even more */
2278 if (expect_false (getpid () != curpid)) 2935 if (expect_false (getpid () != curpid))
… …
2290 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2947 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2291 EV_INVOKE_PENDING; 2948 EV_INVOKE_PENDING;
2292 } 2949 }
2293#endif 2950#endif
2294 2951
2952#if EV_PREPARE_ENABLE
2295 /* queue prepare watchers (and execute them) */ 2953 /* queue prepare watchers (and execute them) */
2296 if (expect_false (preparecnt)) 2954 if (expect_false (preparecnt))
2297 { 2955 {
2298 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2956 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2299 EV_INVOKE_PENDING; 2957 EV_INVOKE_PENDING;
2300 } 2958 }
2959#endif
2301 2960
2302 if (expect_false (loop_done)) 2961 if (expect_false (loop_done))
2303 break; 2962 break;
2304 2963
2305 /* we might have forked, so reify kernel state if necessary */ 2964 /* we might have forked, so reify kernel state if necessary */
… …
2312 /* calculate blocking time */ 2971 /* calculate blocking time */
2313 { 2972 {
2314 ev_tstamp waittime = 0.; 2973 ev_tstamp waittime = 0.;
2315 ev_tstamp sleeptime = 0.; 2974 ev_tstamp sleeptime = 0.;
2316 2975
2976 /* remember old timestamp for io_blocktime calculation */
2977 ev_tstamp prev_mn_now = mn_now;
2978
2979 /* update time to cancel out callback processing overhead */
2980 time_update (EV_A_ 1e100);
2981
2982 /* from now on, we want a pipe-wake-up */
2983 pipe_write_wanted = 1;
2984
2985 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2986
2317 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2987 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2318 { 2988 {
2319 /* remember old timestamp for io_blocktime calculation */
2320 ev_tstamp prev_mn_now = mn_now;
2321
2322 /* update time to cancel out callback processing overhead */
2323 time_update (EV_A_ 1e100);
2324
2325 waittime = MAX_BLOCKTIME; 2989 waittime = MAX_BLOCKTIME;
2326 2990
2327 if (timercnt) 2991 if (timercnt)
2328 { 2992 {
2329 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2993 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2330 if (waittime > to) waittime = to; 2994 if (waittime > to) waittime = to;
2331 } 2995 }
2332 2996
2333#if EV_PERIODIC_ENABLE 2997#if EV_PERIODIC_ENABLE
2334 if (periodiccnt) 2998 if (periodiccnt)
2335 { 2999 {
2336 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3000 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2337 if (waittime > to) waittime = to; 3001 if (waittime > to) waittime = to;
2338 } 3002 }
2339#endif 3003#endif
2340 3004
2341 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3005 /* don't let timeouts decrease the waittime below timeout_blocktime */
2342 if (expect_false (waittime < timeout_blocktime)) 3006 if (expect_false (waittime < timeout_blocktime))
2343 waittime = timeout_blocktime; 3007 waittime = timeout_blocktime;
3008
3009 /* at this point, we NEED to wait, so we have to ensure */
3010 /* to pass a minimum nonzero value to the backend */
3011 if (expect_false (waittime < backend_mintime))
3012 waittime = backend_mintime;
2344 3013
2345 /* extra check because io_blocktime is commonly 0 */ 3014 /* extra check because io_blocktime is commonly 0 */
2346 if (expect_false (io_blocktime)) 3015 if (expect_false (io_blocktime))
2347 { 3016 {
2348 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3017 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2349 3018
2350 if (sleeptime > waittime - backend_fudge) 3019 if (sleeptime > waittime - backend_mintime)
2351 sleeptime = waittime - backend_fudge; 3020 sleeptime = waittime - backend_mintime;
2352 3021
2353 if (expect_true (sleeptime > 0.)) 3022 if (expect_true (sleeptime > 0.))
2354 { 3023 {
2355 ev_sleep (sleeptime); 3024 ev_sleep (sleeptime);
2356 waittime -= sleeptime; 3025 waittime -= sleeptime;
2357 } 3026 }
2358 } 3027 }
2359 } 3028 }
2360 3029
2361#if EV_MINIMAL < 2 3030#if EV_FEATURE_API
2362 ++loop_count; 3031 ++loop_count;
2363#endif 3032#endif
2364 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3033 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2365 backend_poll (EV_A_ waittime); 3034 backend_poll (EV_A_ waittime);
2366 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3035 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3036
3037 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3038
3039 if (pipe_write_skipped)
3040 {
3041 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3042 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3043 }
3044
2367 3045
2368 /* update ev_rt_now, do magic */ 3046 /* update ev_rt_now, do magic */
2369 time_update (EV_A_ waittime + sleeptime); 3047 time_update (EV_A_ waittime + sleeptime);
2370 } 3048 }
2371 3049
… …
2378#if EV_IDLE_ENABLE 3056#if EV_IDLE_ENABLE
2379 /* queue idle watchers unless other events are pending */ 3057 /* queue idle watchers unless other events are pending */
2380 idle_reify (EV_A); 3058 idle_reify (EV_A);
2381#endif 3059#endif
2382 3060
3061#if EV_CHECK_ENABLE
2383 /* queue check watchers, to be executed first */ 3062 /* queue check watchers, to be executed first */
2384 if (expect_false (checkcnt)) 3063 if (expect_false (checkcnt))
2385 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3064 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3065#endif
2386 3066
2387 EV_INVOKE_PENDING; 3067 EV_INVOKE_PENDING;
2388 } 3068 }
2389 while (expect_true ( 3069 while (expect_true (
2390 activecnt 3070 activecnt
2391 && !loop_done 3071 && !loop_done
2392 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3072 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2393 )); 3073 ));
2394 3074
2395 if (loop_done == EVUNLOOP_ONE) 3075 if (loop_done == EVBREAK_ONE)
2396 loop_done = EVUNLOOP_CANCEL; 3076 loop_done = EVBREAK_CANCEL;
2397 3077
2398#if EV_MINIMAL < 2 3078#if EV_FEATURE_API
2399 --loop_depth; 3079 --loop_depth;
2400#endif 3080#endif
2401} 3081}
2402 3082
2403void 3083void
2404ev_unloop (EV_P_ int how) 3084ev_break (EV_P_ int how)
2405{ 3085{
2406 loop_done = how; 3086 loop_done = how;
2407} 3087}
2408 3088
2409void 3089void
… …
2557 EV_FREQUENT_CHECK; 3237 EV_FREQUENT_CHECK;
2558 3238
2559 wlist_del (&anfds[w->fd].head, (WL)w); 3239 wlist_del (&anfds[w->fd].head, (WL)w);
2560 ev_stop (EV_A_ (W)w); 3240 ev_stop (EV_A_ (W)w);
2561 3241
2562 fd_change (EV_A_ w->fd, 1); 3242 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2563 3243
2564 EV_FREQUENT_CHECK; 3244 EV_FREQUENT_CHECK;
2565} 3245}
2566 3246
2567void noinline 3247void noinline
… …
2620 3300
2621void noinline 3301void noinline
2622ev_timer_again (EV_P_ ev_timer *w) 3302ev_timer_again (EV_P_ ev_timer *w)
2623{ 3303{
2624 EV_FREQUENT_CHECK; 3304 EV_FREQUENT_CHECK;
3305
3306 clear_pending (EV_A_ (W)w);
2625 3307
2626 if (ev_is_active (w)) 3308 if (ev_is_active (w))
2627 { 3309 {
2628 if (w->repeat) 3310 if (w->repeat)
2629 { 3311 {
… …
2659 if (w->reschedule_cb) 3341 if (w->reschedule_cb)
2660 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3342 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2661 else if (w->interval) 3343 else if (w->interval)
2662 { 3344 {
2663 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3345 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2664 /* this formula differs from the one in periodic_reify because we do not always round up */ 3346 periodic_recalc (EV_A_ w);
2665 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2666 } 3347 }
2667 else 3348 else
2668 ev_at (w) = w->offset; 3349 ev_at (w) = w->offset;
2669 3350
2670 EV_FREQUENT_CHECK; 3351 EV_FREQUENT_CHECK;
… …
2719#endif 3400#endif
2720 3401
2721#ifndef SA_RESTART 3402#ifndef SA_RESTART
2722# define SA_RESTART 0 3403# define SA_RESTART 0
2723#endif 3404#endif
3405
3406#if EV_SIGNAL_ENABLE
2724 3407
2725void noinline 3408void noinline
2726ev_signal_start (EV_P_ ev_signal *w) 3409ev_signal_start (EV_P_ ev_signal *w)
2727{ 3410{
2728 if (expect_false (ev_is_active (w))) 3411 if (expect_false (ev_is_active (w)))
… …
2789 sa.sa_handler = ev_sighandler; 3472 sa.sa_handler = ev_sighandler;
2790 sigfillset (&sa.sa_mask); 3473 sigfillset (&sa.sa_mask);
2791 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3474 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2792 sigaction (w->signum, &sa, 0); 3475 sigaction (w->signum, &sa, 0);
2793 3476
3477 if (origflags & EVFLAG_NOSIGMASK)
3478 {
2794 sigemptyset (&sa.sa_mask); 3479 sigemptyset (&sa.sa_mask);
2795 sigaddset (&sa.sa_mask, w->signum); 3480 sigaddset (&sa.sa_mask, w->signum);
2796 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3481 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3482 }
2797#endif 3483#endif
2798 } 3484 }
2799 3485
2800 EV_FREQUENT_CHECK; 3486 EV_FREQUENT_CHECK;
2801} 3487}
… …
2835 } 3521 }
2836 3522
2837 EV_FREQUENT_CHECK; 3523 EV_FREQUENT_CHECK;
2838} 3524}
2839 3525
3526#endif
3527
3528#if EV_CHILD_ENABLE
3529
2840void 3530void
2841ev_child_start (EV_P_ ev_child *w) 3531ev_child_start (EV_P_ ev_child *w)
2842{ 3532{
2843#if EV_MULTIPLICITY 3533#if EV_MULTIPLICITY
2844 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3534 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2847 return; 3537 return;
2848 3538
2849 EV_FREQUENT_CHECK; 3539 EV_FREQUENT_CHECK;
2850 3540
2851 ev_start (EV_A_ (W)w, 1); 3541 ev_start (EV_A_ (W)w, 1);
2852 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3542 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2853 3543
2854 EV_FREQUENT_CHECK; 3544 EV_FREQUENT_CHECK;
2855} 3545}
2856 3546
2857void 3547void
… …
2861 if (expect_false (!ev_is_active (w))) 3551 if (expect_false (!ev_is_active (w)))
2862 return; 3552 return;
2863 3553
2864 EV_FREQUENT_CHECK; 3554 EV_FREQUENT_CHECK;
2865 3555
2866 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3556 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2867 ev_stop (EV_A_ (W)w); 3557 ev_stop (EV_A_ (W)w);
2868 3558
2869 EV_FREQUENT_CHECK; 3559 EV_FREQUENT_CHECK;
2870} 3560}
3561
3562#endif
2871 3563
2872#if EV_STAT_ENABLE 3564#if EV_STAT_ENABLE
2873 3565
2874# ifdef _WIN32 3566# ifdef _WIN32
2875# undef lstat 3567# undef lstat
… …
2936 if (!pend || pend == path) 3628 if (!pend || pend == path)
2937 break; 3629 break;
2938 3630
2939 *pend = 0; 3631 *pend = 0;
2940 w->wd = inotify_add_watch (fs_fd, path, mask); 3632 w->wd = inotify_add_watch (fs_fd, path, mask);
2941 } 3633 }
2942 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3634 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2943 } 3635 }
2944 } 3636 }
2945 3637
2946 if (w->wd >= 0) 3638 if (w->wd >= 0)
2947 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3639 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2948 3640
2949 /* now re-arm timer, if required */ 3641 /* now re-arm timer, if required */
2950 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3642 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2951 ev_timer_again (EV_A_ &w->timer); 3643 ev_timer_again (EV_A_ &w->timer);
2952 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3644 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2960 3652
2961 if (wd < 0) 3653 if (wd < 0)
2962 return; 3654 return;
2963 3655
2964 w->wd = -2; 3656 w->wd = -2;
2965 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3657 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2966 wlist_del (&fs_hash [slot].head, (WL)w); 3658 wlist_del (&fs_hash [slot].head, (WL)w);
2967 3659
2968 /* remove this watcher, if others are watching it, they will rearm */ 3660 /* remove this watcher, if others are watching it, they will rearm */
2969 inotify_rm_watch (fs_fd, wd); 3661 inotify_rm_watch (fs_fd, wd);
2970} 3662}
… …
2972static void noinline 3664static void noinline
2973infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3665infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2974{ 3666{
2975 if (slot < 0) 3667 if (slot < 0)
2976 /* overflow, need to check for all hash slots */ 3668 /* overflow, need to check for all hash slots */
2977 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3669 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2978 infy_wd (EV_A_ slot, wd, ev); 3670 infy_wd (EV_A_ slot, wd, ev);
2979 else 3671 else
2980 { 3672 {
2981 WL w_; 3673 WL w_;
2982 3674
2983 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3675 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2984 { 3676 {
2985 ev_stat *w = (ev_stat *)w_; 3677 ev_stat *w = (ev_stat *)w_;
2986 w_ = w_->next; /* lets us remove this watcher and all before it */ 3678 w_ = w_->next; /* lets us remove this watcher and all before it */
2987 3679
2988 if (w->wd == wd || wd == -1) 3680 if (w->wd == wd || wd == -1)
2989 { 3681 {
2990 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3682 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2991 { 3683 {
2992 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3684 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2993 w->wd = -1; 3685 w->wd = -1;
2994 infy_add (EV_A_ w); /* re-add, no matter what */ 3686 infy_add (EV_A_ w); /* re-add, no matter what */
2995 } 3687 }
2996 3688
2997 stat_timer_cb (EV_A_ &w->timer, 0); 3689 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3013 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3705 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3014 ofs += sizeof (struct inotify_event) + ev->len; 3706 ofs += sizeof (struct inotify_event) + ev->len;
3015 } 3707 }
3016} 3708}
3017 3709
3018inline_size unsigned int
3019ev_linux_version (void)
3020{
3021 struct utsname buf;
3022 unsigned int v;
3023 int i;
3024 char *p = buf.release;
3025
3026 if (uname (&buf))
3027 return 0;
3028
3029 for (i = 3+1; --i; )
3030 {
3031 unsigned int c = 0;
3032
3033 for (;;)
3034 {
3035 if (*p >= '0' && *p <= '9')
3036 c = c * 10 + *p++ - '0';
3037 else
3038 {
3039 p += *p == '.';
3040 break;
3041 }
3042 }
3043
3044 v = (v << 8) | c;
3045 }
3046
3047 return v;
3048}
3049
3050inline_size void 3710inline_size void ecb_cold
3051ev_check_2625 (EV_P) 3711ev_check_2625 (EV_P)
3052{ 3712{
3053 /* kernels < 2.6.25 are borked 3713 /* kernels < 2.6.25 are borked
3054 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3714 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3055 */ 3715 */
… …
3111 ev_io_set (&fs_w, fs_fd, EV_READ); 3771 ev_io_set (&fs_w, fs_fd, EV_READ);
3112 ev_io_start (EV_A_ &fs_w); 3772 ev_io_start (EV_A_ &fs_w);
3113 ev_unref (EV_A); 3773 ev_unref (EV_A);
3114 } 3774 }
3115 3775
3116 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3776 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3117 { 3777 {
3118 WL w_ = fs_hash [slot].head; 3778 WL w_ = fs_hash [slot].head;
3119 fs_hash [slot].head = 0; 3779 fs_hash [slot].head = 0;
3120 3780
3121 while (w_) 3781 while (w_)
… …
3296 3956
3297 EV_FREQUENT_CHECK; 3957 EV_FREQUENT_CHECK;
3298} 3958}
3299#endif 3959#endif
3300 3960
3961#if EV_PREPARE_ENABLE
3301void 3962void
3302ev_prepare_start (EV_P_ ev_prepare *w) 3963ev_prepare_start (EV_P_ ev_prepare *w)
3303{ 3964{
3304 if (expect_false (ev_is_active (w))) 3965 if (expect_false (ev_is_active (w)))
3305 return; 3966 return;
… …
3331 3992
3332 ev_stop (EV_A_ (W)w); 3993 ev_stop (EV_A_ (W)w);
3333 3994
3334 EV_FREQUENT_CHECK; 3995 EV_FREQUENT_CHECK;
3335} 3996}
3997#endif
3336 3998
3999#if EV_CHECK_ENABLE
3337void 4000void
3338ev_check_start (EV_P_ ev_check *w) 4001ev_check_start (EV_P_ ev_check *w)
3339{ 4002{
3340 if (expect_false (ev_is_active (w))) 4003 if (expect_false (ev_is_active (w)))
3341 return; 4004 return;
… …
3367 4030
3368 ev_stop (EV_A_ (W)w); 4031 ev_stop (EV_A_ (W)w);
3369 4032
3370 EV_FREQUENT_CHECK; 4033 EV_FREQUENT_CHECK;
3371} 4034}
4035#endif
3372 4036
3373#if EV_EMBED_ENABLE 4037#if EV_EMBED_ENABLE
3374void noinline 4038void noinline
3375ev_embed_sweep (EV_P_ ev_embed *w) 4039ev_embed_sweep (EV_P_ ev_embed *w)
3376{ 4040{
3377 ev_loop (w->other, EVLOOP_NONBLOCK); 4041 ev_run (w->other, EVRUN_NOWAIT);
3378} 4042}
3379 4043
3380static void 4044static void
3381embed_io_cb (EV_P_ ev_io *io, int revents) 4045embed_io_cb (EV_P_ ev_io *io, int revents)
3382{ 4046{
3383 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4047 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3384 4048
3385 if (ev_cb (w)) 4049 if (ev_cb (w))
3386 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4050 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3387 else 4051 else
3388 ev_loop (w->other, EVLOOP_NONBLOCK); 4052 ev_run (w->other, EVRUN_NOWAIT);
3389} 4053}
3390 4054
3391static void 4055static void
3392embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4056embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3393{ 4057{
… …
3397 EV_P = w->other; 4061 EV_P = w->other;
3398 4062
3399 while (fdchangecnt) 4063 while (fdchangecnt)
3400 { 4064 {
3401 fd_reify (EV_A); 4065 fd_reify (EV_A);
3402 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4066 ev_run (EV_A_ EVRUN_NOWAIT);
3403 } 4067 }
3404 } 4068 }
3405} 4069}
3406 4070
3407static void 4071static void
… …
3413 4077
3414 { 4078 {
3415 EV_P = w->other; 4079 EV_P = w->other;
3416 4080
3417 ev_loop_fork (EV_A); 4081 ev_loop_fork (EV_A);
3418 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4082 ev_run (EV_A_ EVRUN_NOWAIT);
3419 } 4083 }
3420 4084
3421 ev_embed_start (EV_A_ w); 4085 ev_embed_start (EV_A_ w);
3422} 4086}
3423 4087
… …
3515 4179
3516 EV_FREQUENT_CHECK; 4180 EV_FREQUENT_CHECK;
3517} 4181}
3518#endif 4182#endif
3519 4183
4184#if EV_CLEANUP_ENABLE
4185void
4186ev_cleanup_start (EV_P_ ev_cleanup *w)
4187{
4188 if (expect_false (ev_is_active (w)))
4189 return;
4190
4191 EV_FREQUENT_CHECK;
4192
4193 ev_start (EV_A_ (W)w, ++cleanupcnt);
4194 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4195 cleanups [cleanupcnt - 1] = w;
4196
4197 /* cleanup watchers should never keep a refcount on the loop */
4198 ev_unref (EV_A);
4199 EV_FREQUENT_CHECK;
4200}
4201
4202void
4203ev_cleanup_stop (EV_P_ ev_cleanup *w)
4204{
4205 clear_pending (EV_A_ (W)w);
4206 if (expect_false (!ev_is_active (w)))
4207 return;
4208
4209 EV_FREQUENT_CHECK;
4210 ev_ref (EV_A);
4211
4212 {
4213 int active = ev_active (w);
4214
4215 cleanups [active - 1] = cleanups [--cleanupcnt];
4216 ev_active (cleanups [active - 1]) = active;
4217 }
4218
4219 ev_stop (EV_A_ (W)w);
4220
4221 EV_FREQUENT_CHECK;
4222}
4223#endif
4224
3520#if EV_ASYNC_ENABLE 4225#if EV_ASYNC_ENABLE
3521void 4226void
3522ev_async_start (EV_P_ ev_async *w) 4227ev_async_start (EV_P_ ev_async *w)
3523{ 4228{
3524 if (expect_false (ev_is_active (w))) 4229 if (expect_false (ev_is_active (w)))
3525 return; 4230 return;
4231
4232 w->sent = 0;
3526 4233
3527 evpipe_init (EV_A); 4234 evpipe_init (EV_A);
3528 4235
3529 EV_FREQUENT_CHECK; 4236 EV_FREQUENT_CHECK;
3530 4237
… …
3608{ 4315{
3609 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4316 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3610 4317
3611 if (expect_false (!once)) 4318 if (expect_false (!once))
3612 { 4319 {
3613 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4320 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3614 return; 4321 return;
3615 } 4322 }
3616 4323
3617 once->cb = cb; 4324 once->cb = cb;
3618 once->arg = arg; 4325 once->arg = arg;
… …
3633} 4340}
3634 4341
3635/*****************************************************************************/ 4342/*****************************************************************************/
3636 4343
3637#if EV_WALK_ENABLE 4344#if EV_WALK_ENABLE
3638void 4345void ecb_cold
3639ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4346ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3640{ 4347{
3641 int i, j; 4348 int i, j;
3642 ev_watcher_list *wl, *wn; 4349 ev_watcher_list *wl, *wn;
3643 4350
… …
3687 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4394 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3688#endif 4395#endif
3689 4396
3690#if EV_IDLE_ENABLE 4397#if EV_IDLE_ENABLE
3691 if (types & EV_IDLE) 4398 if (types & EV_IDLE)
3692 for (j = NUMPRI; i--; ) 4399 for (j = NUMPRI; j--; )
3693 for (i = idlecnt [j]; i--; ) 4400 for (i = idlecnt [j]; i--; )
3694 cb (EV_A_ EV_IDLE, idles [j][i]); 4401 cb (EV_A_ EV_IDLE, idles [j][i]);
3695#endif 4402#endif
3696 4403
3697#if EV_FORK_ENABLE 4404#if EV_FORK_ENABLE
… …
3705 if (types & EV_ASYNC) 4412 if (types & EV_ASYNC)
3706 for (i = asynccnt; i--; ) 4413 for (i = asynccnt; i--; )
3707 cb (EV_A_ EV_ASYNC, asyncs [i]); 4414 cb (EV_A_ EV_ASYNC, asyncs [i]);
3708#endif 4415#endif
3709 4416
4417#if EV_PREPARE_ENABLE
3710 if (types & EV_PREPARE) 4418 if (types & EV_PREPARE)
3711 for (i = preparecnt; i--; ) 4419 for (i = preparecnt; i--; )
3712#if EV_EMBED_ENABLE 4420# if EV_EMBED_ENABLE
3713 if (ev_cb (prepares [i]) != embed_prepare_cb) 4421 if (ev_cb (prepares [i]) != embed_prepare_cb)
3714#endif 4422# endif
3715 cb (EV_A_ EV_PREPARE, prepares [i]); 4423 cb (EV_A_ EV_PREPARE, prepares [i]);
4424#endif
3716 4425
4426#if EV_CHECK_ENABLE
3717 if (types & EV_CHECK) 4427 if (types & EV_CHECK)
3718 for (i = checkcnt; i--; ) 4428 for (i = checkcnt; i--; )
3719 cb (EV_A_ EV_CHECK, checks [i]); 4429 cb (EV_A_ EV_CHECK, checks [i]);
4430#endif
3720 4431
4432#if EV_SIGNAL_ENABLE
3721 if (types & EV_SIGNAL) 4433 if (types & EV_SIGNAL)
3722 for (i = 0; i < EV_NSIG - 1; ++i) 4434 for (i = 0; i < EV_NSIG - 1; ++i)
3723 for (wl = signals [i].head; wl; ) 4435 for (wl = signals [i].head; wl; )
3724 { 4436 {
3725 wn = wl->next; 4437 wn = wl->next;
3726 cb (EV_A_ EV_SIGNAL, wl); 4438 cb (EV_A_ EV_SIGNAL, wl);
3727 wl = wn; 4439 wl = wn;
3728 } 4440 }
4441#endif
3729 4442
4443#if EV_CHILD_ENABLE
3730 if (types & EV_CHILD) 4444 if (types & EV_CHILD)
3731 for (i = EV_PID_HASHSIZE; i--; ) 4445 for (i = (EV_PID_HASHSIZE); i--; )
3732 for (wl = childs [i]; wl; ) 4446 for (wl = childs [i]; wl; )
3733 { 4447 {
3734 wn = wl->next; 4448 wn = wl->next;
3735 cb (EV_A_ EV_CHILD, wl); 4449 cb (EV_A_ EV_CHILD, wl);
3736 wl = wn; 4450 wl = wn;
3737 } 4451 }
4452#endif
3738/* EV_STAT 0x00001000 /* stat data changed */ 4453/* EV_STAT 0x00001000 /* stat data changed */
3739/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4454/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3740} 4455}
3741#endif 4456#endif
3742 4457
3743#if EV_MULTIPLICITY 4458#if EV_MULTIPLICITY
3744 #include "ev_wrap.h" 4459 #include "ev_wrap.h"
3745#endif 4460#endif
3746 4461
3747#ifdef __cplusplus
3748}
3749#endif
3750

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