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Comparing libev/ev.c (file contents):
Revision 1.330 by root, Tue Mar 9 08:46:17 2010 UTC vs.
Revision 1.422 by root, Wed Apr 18 06:09:29 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) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
171 181
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# include "ev.h" 185# include "ev.h"
186#endif
187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
176#endif 197#endif
177 198
178#ifndef _WIN32 199#ifndef _WIN32
179# include <sys/time.h> 200# include <sys/time.h>
180# include <sys/wait.h> 201# include <sys/wait.h>
… …
184# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
185# include <windows.h> 206# include <windows.h>
186# ifndef EV_SELECT_IS_WINSOCKET 207# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 208# define EV_SELECT_IS_WINSOCKET 1
188# endif 209# endif
210# undef EV_AVOID_STDIO
189#endif 211#endif
212
213/* OS X, in its infinite idiocy, actually HARDCODES
214 * a limit of 1024 into their select. Where people have brains,
215 * OS X engineers apparently have a vacuum. Or maybe they were
216 * ordered to have a vacuum, or they do anything for money.
217 * This might help. Or not.
218 */
219#define _DARWIN_UNLIMITED_SELECT 1
190 220
191/* this block tries to deduce configuration from header-defined symbols and defaults */ 221/* this block tries to deduce configuration from header-defined symbols and defaults */
192 222
193/* try to deduce the maximum number of signals on this platform */ 223/* try to deduce the maximum number of signals on this platform */
194#if defined (EV_NSIG) 224#if defined EV_NSIG
195/* use what's provided */ 225/* use what's provided */
196#elif defined (NSIG) 226#elif defined NSIG
197# define EV_NSIG (NSIG) 227# define EV_NSIG (NSIG)
198#elif defined(_NSIG) 228#elif defined _NSIG
199# define EV_NSIG (_NSIG) 229# define EV_NSIG (_NSIG)
200#elif defined (SIGMAX) 230#elif defined SIGMAX
201# define EV_NSIG (SIGMAX+1) 231# define EV_NSIG (SIGMAX+1)
202#elif defined (SIG_MAX) 232#elif defined SIG_MAX
203# define EV_NSIG (SIG_MAX+1) 233# define EV_NSIG (SIG_MAX+1)
204#elif defined (_SIG_MAX) 234#elif defined _SIG_MAX
205# define EV_NSIG (_SIG_MAX+1) 235# define EV_NSIG (_SIG_MAX+1)
206#elif defined (MAXSIG) 236#elif defined MAXSIG
207# define EV_NSIG (MAXSIG+1) 237# define EV_NSIG (MAXSIG+1)
208#elif defined (MAX_SIG) 238#elif defined MAX_SIG
209# define EV_NSIG (MAX_SIG+1) 239# define EV_NSIG (MAX_SIG+1)
210#elif defined (SIGARRAYSIZE) 240#elif defined SIGARRAYSIZE
211# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
212#elif defined (_sys_nsig) 242#elif defined _sys_nsig
213# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
214#else 244#else
215# error "unable to find value for NSIG, please report" 245# error "unable to find value for NSIG, please report"
216/* to make it compile regardless, just remove the above line */ 246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
217# define EV_NSIG 65 248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
218#endif 253#endif
219 254
220#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
221# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
222# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
223# else 258# else
224# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
225# endif 260# endif
226#endif 261#endif
227 262
228#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
229# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
230# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
231# else 266# else
232# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
233# endif 268# endif
234#endif 269#endif
235 270
… …
237# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
238#endif 273#endif
239 274
240#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
241# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
242# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
243# else 278# else
244# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
245# endif 280# endif
246#endif 281#endif
247 282
248#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
249# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
250#endif 285#endif
251 286
252#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
253# ifdef _WIN32 288# ifdef _WIN32
254# define EV_USE_POLL 0 289# define EV_USE_POLL 0
255# else 290# else
256# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
257# endif 292# endif
258#endif 293#endif
259 294
260#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
261# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
262# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
263# else 298# else
264# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
265# endif 300# endif
266#endif 301#endif
267 302
… …
273# define EV_USE_PORT 0 308# define EV_USE_PORT 0
274#endif 309#endif
275 310
276#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
277# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
278# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
279# else 314# else
280# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
281# endif 316# endif
282#endif 317#endif
283 318
284#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
285# if EV_MINIMAL 320# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
286# define EV_PID_HASHSIZE 1
287# else
288# define EV_PID_HASHSIZE 16
289# endif
290#endif 321#endif
291 322
292#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
293# if EV_MINIMAL 324# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
294# define EV_INOTIFY_HASHSIZE 1
295# else
296# define EV_INOTIFY_HASHSIZE 16
297# endif
298#endif 325#endif
299 326
300#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
301# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
302# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
303# else 330# else
304# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
305# endif 332# endif
306#endif 333#endif
307 334
308#ifndef EV_USE_SIGNALFD 335#ifndef EV_USE_SIGNALFD
309# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
310# define EV_USE_SIGNALFD 1 337# define EV_USE_SIGNALFD EV_FEATURE_OS
311# else 338# else
312# define EV_USE_SIGNALFD 0 339# define EV_USE_SIGNALFD 0
313# endif 340# endif
314#endif 341#endif
315 342
… …
318# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
319# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
320#endif 347#endif
321 348
322#ifndef EV_VERIFY 349#ifndef EV_VERIFY
323# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
324#endif 351#endif
325 352
326#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
327# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
328#endif 355#endif
329 356
330#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
331# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
332#endif 359#endif
333 360
334/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
335/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
336#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
… …
367# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
368# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
369#endif 396#endif
370 397
371#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
372# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
373# include <sys/select.h> 401# include <sys/select.h>
374# endif 402# endif
375#endif 403#endif
376 404
377#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
378# include <sys/utsname.h>
379# include <sys/statfs.h> 406# include <sys/statfs.h>
380# include <sys/inotify.h> 407# include <sys/inotify.h>
381/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
382# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
383# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
400# define EFD_CLOEXEC O_CLOEXEC 427# define EFD_CLOEXEC O_CLOEXEC
401# else 428# else
402# define EFD_CLOEXEC 02000000 429# define EFD_CLOEXEC 02000000
403# endif 430# endif
404# endif 431# endif
405# ifdef __cplusplus
406extern "C" {
407# endif
408int (eventfd) (unsigned int initval, int flags); 432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
409# ifdef __cplusplus
410}
411# endif
412#endif 433#endif
413 434
414#if EV_USE_SIGNALFD 435#if EV_USE_SIGNALFD
415/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 436/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
416# include <stdint.h> 437# include <stdint.h>
… …
422# define SFD_CLOEXEC O_CLOEXEC 443# define SFD_CLOEXEC O_CLOEXEC
423# else 444# else
424# define SFD_CLOEXEC 02000000 445# define SFD_CLOEXEC 02000000
425# endif 446# endif
426# endif 447# endif
427# ifdef __cplusplus
428extern "C" {
429# endif
430int signalfd (int fd, const sigset_t *mask, int flags); 448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
431 449
432struct signalfd_siginfo 450struct signalfd_siginfo
433{ 451{
434 uint32_t ssi_signo; 452 uint32_t ssi_signo;
435 char pad[128 - sizeof (uint32_t)]; 453 char pad[128 - sizeof (uint32_t)];
436}; 454};
437# ifdef __cplusplus
438}
439# endif 455#endif
440#endif
441
442 456
443/**/ 457/**/
444 458
445#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
446# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
447#else 461#else
448# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
449#endif 463#endif
450 464
451/* 465/*
452 * This is used to avoid floating point rounding problems. 466 * This is used to work around floating point rounding problems.
453 * It is added to ev_rt_now when scheduling periodics
454 * to ensure progress, time-wise, even when rounding
455 * errors are against us.
456 * This value is good at least till the year 4000. 467 * This value is good at least till the year 4000.
457 * Better solutions welcome.
458 */ 468 */
459#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
470/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
460 471
461#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 472#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
462#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 473#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
463 474
475#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
476#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
477
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */
480/*
481 * libecb - http://software.schmorp.de/pkg/libecb
482 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved.
486 *
487 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met:
489 *
490 * 1. Redistributions of source code must retain the above copyright notice,
491 * this list of conditions and the following disclaimer.
492 *
493 * 2. Redistributions in binary form must reproduce the above copyright
494 * notice, this list of conditions and the following disclaimer in the
495 * documentation and/or other materials provided with the distribution.
496 *
497 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
498 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
499 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
500 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
501 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE.
507 */
508
509#ifndef ECB_H
510#define ECB_H
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
464#if __GNUC__ >= 4 519 #if __GNUC__
465# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
466# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
467#else 526#else
468# define expect(expr,value) (expr) 527 #include <inttypes.h>
469# define noinline
470# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
471# define inline
472# endif 528#endif
529
530/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place.
536 */
537#ifndef ECB_GCC_VERSION
538 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0
540 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
473#endif 542 #endif
543#endif
474 544
545/*****************************************************************************/
546
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549
550#if ECB_NO_THREADS
551# define ECB_NO_SMP 1
552#endif
553
554#if ECB_NO_THREADS || ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0)
556#endif
557
558#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined __mips__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
584 #elif defined __alpha__
585 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
586 #endif
587 #endif
588#endif
589
590#ifndef ECB_MEMORY_FENCE
591 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
592 #define ECB_MEMORY_FENCE __sync_synchronize ()
593 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
594 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
595 #elif _MSC_VER >= 1400 /* VC++ 2005 */
596 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
597 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
598 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
599 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
600 #elif defined _WIN32
601 #include <WinNT.h>
602 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
603 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
604 #include <mbarrier.h>
605 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
606 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
607 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
608 #elif __xlC__
609 #define ECB_MEMORY_FENCE __sync ()
610 #endif
611#endif
612
613#ifndef ECB_MEMORY_FENCE
614 #if !ECB_AVOID_PTHREADS
615 /*
616 * if you get undefined symbol references to pthread_mutex_lock,
617 * or failure to find pthread.h, then you should implement
618 * the ECB_MEMORY_FENCE operations for your cpu/compiler
619 * OR provide pthread.h and link against the posix thread library
620 * of your system.
621 */
622 #include <pthread.h>
623 #define ECB_NEEDS_PTHREADS 1
624 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
625
626 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
627 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
628 #endif
629#endif
630
631#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
633#endif
634
635#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
636 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
637#endif
638
639/*****************************************************************************/
640
641#define ECB_C99 (__STDC_VERSION__ >= 199901L)
642
643#if __cplusplus
644 #define ecb_inline static inline
645#elif ECB_GCC_VERSION(2,5)
646 #define ecb_inline static __inline__
647#elif ECB_C99
648 #define ecb_inline static inline
649#else
650 #define ecb_inline static
651#endif
652
653#if ECB_GCC_VERSION(3,3)
654 #define ecb_restrict __restrict__
655#elif ECB_C99
656 #define ecb_restrict restrict
657#else
658 #define ecb_restrict
659#endif
660
661typedef int ecb_bool;
662
663#define ECB_CONCAT_(a, b) a ## b
664#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
665#define ECB_STRINGIFY_(a) # a
666#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
667
668#define ecb_function_ ecb_inline
669
670#if ECB_GCC_VERSION(3,1)
671 #define ecb_attribute(attrlist) __attribute__(attrlist)
672 #define ecb_is_constant(expr) __builtin_constant_p (expr)
673 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
674 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
675#else
676 #define ecb_attribute(attrlist)
677 #define ecb_is_constant(expr) 0
678 #define ecb_expect(expr,value) (expr)
679 #define ecb_prefetch(addr,rw,locality)
680#endif
681
682/* no emulation for ecb_decltype */
683#if ECB_GCC_VERSION(4,5)
684 #define ecb_decltype(x) __decltype(x)
685#elif ECB_GCC_VERSION(3,0)
686 #define ecb_decltype(x) __typeof(x)
687#endif
688
689#define ecb_noinline ecb_attribute ((__noinline__))
690#define ecb_noreturn ecb_attribute ((__noreturn__))
691#define ecb_unused ecb_attribute ((__unused__))
692#define ecb_const ecb_attribute ((__const__))
693#define ecb_pure ecb_attribute ((__pure__))
694
695#if ECB_GCC_VERSION(4,3)
696 #define ecb_artificial ecb_attribute ((__artificial__))
697 #define ecb_hot ecb_attribute ((__hot__))
698 #define ecb_cold ecb_attribute ((__cold__))
699#else
700 #define ecb_artificial
701 #define ecb_hot
702 #define ecb_cold
703#endif
704
705/* put around conditional expressions if you are very sure that the */
706/* expression is mostly true or mostly false. note that these return */
707/* booleans, not the expression. */
475#define expect_false(expr) expect ((expr) != 0, 0) 708#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
476#define expect_true(expr) expect ((expr) != 0, 1) 709#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
710/* for compatibility to the rest of the world */
711#define ecb_likely(expr) ecb_expect_true (expr)
712#define ecb_unlikely(expr) ecb_expect_false (expr)
713
714/* count trailing zero bits and count # of one bits */
715#if ECB_GCC_VERSION(3,4)
716 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
717 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
718 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
719 #define ecb_ctz32(x) __builtin_ctz (x)
720 #define ecb_ctz64(x) __builtin_ctzll (x)
721 #define ecb_popcount32(x) __builtin_popcount (x)
722 /* no popcountll */
723#else
724 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
725 ecb_function_ int
726 ecb_ctz32 (uint32_t x)
727 {
728 int r = 0;
729
730 x &= ~x + 1; /* this isolates the lowest bit */
731
732#if ECB_branchless_on_i386
733 r += !!(x & 0xaaaaaaaa) << 0;
734 r += !!(x & 0xcccccccc) << 1;
735 r += !!(x & 0xf0f0f0f0) << 2;
736 r += !!(x & 0xff00ff00) << 3;
737 r += !!(x & 0xffff0000) << 4;
738#else
739 if (x & 0xaaaaaaaa) r += 1;
740 if (x & 0xcccccccc) r += 2;
741 if (x & 0xf0f0f0f0) r += 4;
742 if (x & 0xff00ff00) r += 8;
743 if (x & 0xffff0000) r += 16;
744#endif
745
746 return r;
747 }
748
749 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
750 ecb_function_ int
751 ecb_ctz64 (uint64_t x)
752 {
753 int shift = x & 0xffffffffU ? 0 : 32;
754 return ecb_ctz32 (x >> shift) + shift;
755 }
756
757 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
758 ecb_function_ int
759 ecb_popcount32 (uint32_t x)
760 {
761 x -= (x >> 1) & 0x55555555;
762 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
763 x = ((x >> 4) + x) & 0x0f0f0f0f;
764 x *= 0x01010101;
765
766 return x >> 24;
767 }
768
769 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
770 ecb_function_ int ecb_ld32 (uint32_t x)
771 {
772 int r = 0;
773
774 if (x >> 16) { x >>= 16; r += 16; }
775 if (x >> 8) { x >>= 8; r += 8; }
776 if (x >> 4) { x >>= 4; r += 4; }
777 if (x >> 2) { x >>= 2; r += 2; }
778 if (x >> 1) { r += 1; }
779
780 return r;
781 }
782
783 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
784 ecb_function_ int ecb_ld64 (uint64_t x)
785 {
786 int r = 0;
787
788 if (x >> 32) { x >>= 32; r += 32; }
789
790 return r + ecb_ld32 (x);
791 }
792#endif
793
794ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796{
797 return ( (x * 0x0802U & 0x22110U)
798 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
799}
800
801ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
803{
804 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
805 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
806 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
807 x = ( x >> 8 ) | ( x << 8);
808
809 return x;
810}
811
812ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
814{
815 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
816 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
817 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
818 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
819 x = ( x >> 16 ) | ( x << 16);
820
821 return x;
822}
823
824/* popcount64 is only available on 64 bit cpus as gcc builtin */
825/* so for this version we are lazy */
826ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
827ecb_function_ int
828ecb_popcount64 (uint64_t x)
829{
830 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
831}
832
833ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
834ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
841
842ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
843ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
844ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
845ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
846ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
847ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
848ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
849ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
850
851#if ECB_GCC_VERSION(4,3)
852 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
853 #define ecb_bswap32(x) __builtin_bswap32 (x)
854 #define ecb_bswap64(x) __builtin_bswap64 (x)
855#else
856 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
857 ecb_function_ uint16_t
858 ecb_bswap16 (uint16_t x)
859 {
860 return ecb_rotl16 (x, 8);
861 }
862
863 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
864 ecb_function_ uint32_t
865 ecb_bswap32 (uint32_t x)
866 {
867 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
868 }
869
870 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
871 ecb_function_ uint64_t
872 ecb_bswap64 (uint64_t x)
873 {
874 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
875 }
876#endif
877
878#if ECB_GCC_VERSION(4,5)
879 #define ecb_unreachable() __builtin_unreachable ()
880#else
881 /* this seems to work fine, but gcc always emits a warning for it :/ */
882 ecb_inline void ecb_unreachable (void) ecb_noreturn;
883 ecb_inline void ecb_unreachable (void) { }
884#endif
885
886/* try to tell the compiler that some condition is definitely true */
887#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
888
889ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
890ecb_inline unsigned char
891ecb_byteorder_helper (void)
892{
893 const uint32_t u = 0x11223344;
894 return *(unsigned char *)&u;
895}
896
897ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
898ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
899ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
900ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
901
902#if ECB_GCC_VERSION(3,0) || ECB_C99
903 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
904#else
905 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
906#endif
907
908#if __cplusplus
909 template<typename T>
910 static inline T ecb_div_rd (T val, T div)
911 {
912 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
913 }
914 template<typename T>
915 static inline T ecb_div_ru (T val, T div)
916 {
917 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
918 }
919#else
920 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
921 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
922#endif
923
924#if ecb_cplusplus_does_not_suck
925 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
926 template<typename T, int N>
927 static inline int ecb_array_length (const T (&arr)[N])
928 {
929 return N;
930 }
931#else
932 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
933#endif
934
935#endif
936
937/* ECB.H END */
938
939#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
940/* if your architecture doesn't need memory fences, e.g. because it is
941 * single-cpu/core, or if you use libev in a project that doesn't use libev
942 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
943 * libev, in which cases the memory fences become nops.
944 * alternatively, you can remove this #error and link against libpthread,
945 * which will then provide the memory fences.
946 */
947# error "memory fences not defined for your architecture, please report"
948#endif
949
950#ifndef ECB_MEMORY_FENCE
951# define ECB_MEMORY_FENCE do { } while (0)
952# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
953# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
954#endif
955
956#define expect_false(cond) ecb_expect_false (cond)
957#define expect_true(cond) ecb_expect_true (cond)
958#define noinline ecb_noinline
959
477#define inline_size static inline 960#define inline_size ecb_inline
478 961
479#if EV_MINIMAL 962#if EV_FEATURE_CODE
963# define inline_speed ecb_inline
964#else
480# define inline_speed static noinline 965# define inline_speed static noinline
481#else
482# define inline_speed static inline
483#endif 966#endif
484 967
485#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
486 969
487#if EV_MINPRI == EV_MAXPRI 970#if EV_MINPRI == EV_MAXPRI
… …
500#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
501#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
502 985
503#if EV_USE_REALTIME 986#if EV_USE_REALTIME
504/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 987/* sig_atomic_t is used to avoid per-thread variables or locking but still */
505/* giving it a reasonably high chance of working on typical architetcures */ 988/* giving it a reasonably high chance of working on typical architectures */
506static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
507#endif 990#endif
508 991
509#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
510static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
524# include "ev_win32.c" 1007# include "ev_win32.c"
525#endif 1008#endif
526 1009
527/*****************************************************************************/ 1010/*****************************************************************************/
528 1011
1012/* define a suitable floor function (only used by periodics atm) */
1013
1014#if EV_USE_FLOOR
1015# include <math.h>
1016# define ev_floor(v) floor (v)
1017#else
1018
1019#include <float.h>
1020
1021/* a floor() replacement function, should be independent of ev_tstamp type */
1022static ev_tstamp noinline
1023ev_floor (ev_tstamp v)
1024{
1025 /* the choice of shift factor is not terribly important */
1026#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1027 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1028#else
1029 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1030#endif
1031
1032 /* argument too large for an unsigned long? */
1033 if (expect_false (v >= shift))
1034 {
1035 ev_tstamp f;
1036
1037 if (v == v - 1.)
1038 return v; /* very large number */
1039
1040 f = shift * ev_floor (v * (1. / shift));
1041 return f + ev_floor (v - f);
1042 }
1043
1044 /* special treatment for negative args? */
1045 if (expect_false (v < 0.))
1046 {
1047 ev_tstamp f = -ev_floor (-v);
1048
1049 return f - (f == v ? 0 : 1);
1050 }
1051
1052 /* fits into an unsigned long */
1053 return (unsigned long)v;
1054}
1055
1056#endif
1057
1058/*****************************************************************************/
1059
1060#ifdef __linux
1061# include <sys/utsname.h>
1062#endif
1063
1064static unsigned int noinline ecb_cold
1065ev_linux_version (void)
1066{
1067#ifdef __linux
1068 unsigned int v = 0;
1069 struct utsname buf;
1070 int i;
1071 char *p = buf.release;
1072
1073 if (uname (&buf))
1074 return 0;
1075
1076 for (i = 3+1; --i; )
1077 {
1078 unsigned int c = 0;
1079
1080 for (;;)
1081 {
1082 if (*p >= '0' && *p <= '9')
1083 c = c * 10 + *p++ - '0';
1084 else
1085 {
1086 p += *p == '.';
1087 break;
1088 }
1089 }
1090
1091 v = (v << 8) | c;
1092 }
1093
1094 return v;
1095#else
1096 return 0;
1097#endif
1098}
1099
1100/*****************************************************************************/
1101
1102#if EV_AVOID_STDIO
1103static void noinline ecb_cold
1104ev_printerr (const char *msg)
1105{
1106 write (STDERR_FILENO, msg, strlen (msg));
1107}
1108#endif
1109
529static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
530 1111
531void 1112void ecb_cold
532ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
533{ 1114{
534 syserr_cb = cb; 1115 syserr_cb = cb;
535} 1116}
536 1117
537static void noinline 1118static void noinline ecb_cold
538ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
539{ 1120{
540 if (!msg) 1121 if (!msg)
541 msg = "(libev) system error"; 1122 msg = "(libev) system error";
542 1123
543 if (syserr_cb) 1124 if (syserr_cb)
544 syserr_cb (msg); 1125 syserr_cb (msg);
545 else 1126 else
546 { 1127 {
547#if EV_AVOID_STDIO 1128#if EV_AVOID_STDIO
548 write (STDERR_FILENO, msg, strlen (msg)); 1129 ev_printerr (msg);
549 write (STDERR_FILENO, ": ", 2); 1130 ev_printerr (": ");
550 msg = strerror (errno); 1131 ev_printerr (strerror (errno));
551 write (STDERR_FILENO, msg, strlen (msg)); 1132 ev_printerr ("\n");
552 write (STDERR_FILENO, "\n", 1);
553#else 1133#else
554 perror (msg); 1134 perror (msg);
555#endif 1135#endif
556 abort (); 1136 abort ();
557 } 1137 }
558} 1138}
559 1139
560static void * 1140static void *
561ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
562{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
563 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
564 * implement realloc (x, 0) (as required by both ansi c-98 and 1147 * implement realloc (x, 0) (as required by both ansi c-89 and
565 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
566 */ 1149 */
567 1150
568 if (size) 1151 if (size)
569 return realloc (ptr, size); 1152 return realloc (ptr, size);
570 1153
571 free (ptr); 1154 free (ptr);
572 return 0; 1155 return 0;
1156#endif
573} 1157}
574 1158
575static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
576 1160
577void 1161void ecb_cold
578ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
579{ 1163{
580 alloc = cb; 1164 alloc = cb;
581} 1165}
582 1166
583inline_speed void * 1167inline_speed void *
… …
586 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
587 1171
588 if (!ptr && size) 1172 if (!ptr && size)
589 { 1173 {
590#if EV_AVOID_STDIO 1174#if EV_AVOID_STDIO
591 write (STDERR_FILENO, "libev: memory allocation failed, aborting.", 1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
592 sizeof ("libev: memory allocation failed, aborting.") - 1);
593#else 1176#else
594 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
595#endif 1178#endif
596 abort (); 1179 abort ();
597 } 1180 }
598 1181
599 return ptr; 1182 return ptr;
… …
616 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1199 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
617 unsigned char unused; 1200 unsigned char unused;
618#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
619 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
620#endif 1203#endif
621#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
622 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
623#endif 1209#endif
624} ANFD; 1210} ANFD;
625 1211
626/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
627typedef struct 1213typedef struct
… …
669 #undef VAR 1255 #undef VAR
670 }; 1256 };
671 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
672 1258
673 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
674 struct ev_loop *ev_default_loop_ptr; 1260 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
675 1261
676#else 1262#else
677 1263
678 ev_tstamp ev_rt_now; 1264 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
679 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
680 #include "ev_vars.h" 1266 #include "ev_vars.h"
681 #undef VAR 1267 #undef VAR
682 1268
683 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
684 1270
685#endif 1271#endif
686 1272
687#if EV_MINIMAL < 2 1273#if EV_FEATURE_API
688# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1274# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
689# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1275# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
690# define EV_INVOKE_PENDING invoke_cb (EV_A) 1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
691#else 1277#else
692# define EV_RELEASE_CB (void)0 1278# define EV_RELEASE_CB (void)0
693# define EV_ACQUIRE_CB (void)0 1279# define EV_ACQUIRE_CB (void)0
694# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
695#endif 1281#endif
696 1282
697#define EVUNLOOP_RECURSE 0x80 1283#define EVBREAK_RECURSE 0x80
698 1284
699/*****************************************************************************/ 1285/*****************************************************************************/
700 1286
701#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
702ev_tstamp 1288ev_tstamp
703ev_time (void) 1289ev_time (void) EV_THROW
704{ 1290{
705#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
706 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
707 { 1293 {
708 struct timespec ts; 1294 struct timespec ts;
… …
732 return ev_time (); 1318 return ev_time ();
733} 1319}
734 1320
735#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
736ev_tstamp 1322ev_tstamp
737ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
738{ 1324{
739 return ev_rt_now; 1325 return ev_rt_now;
740} 1326}
741#endif 1327#endif
742 1328
743void 1329void
744ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
745{ 1331{
746 if (delay > 0.) 1332 if (delay > 0.)
747 { 1333 {
748#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
749 struct timespec ts; 1335 struct timespec ts;
750 1336
751 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
752 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
753
754 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
755#elif defined(_WIN32) 1339#elif defined _WIN32
756 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
757#else 1341#else
758 struct timeval tv; 1342 struct timeval tv;
759 1343
760 tv.tv_sec = (time_t)delay;
761 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
762
763 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
764 /* something not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
765 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
766 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
767#endif 1349#endif
768 } 1350 }
769} 1351}
770 1352
771/*****************************************************************************/ 1353/*****************************************************************************/
772 1354
773#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1355#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
774 1356
775/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
776/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
777inline_size int 1359inline_size int
778array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
779{ 1361{
780 int ncur = cur + 1; 1362 int ncur = cur + 1;
781 1363
782 do 1364 do
783 ncur <<= 1; 1365 ncur <<= 1;
784 while (cnt > ncur); 1366 while (cnt > ncur);
785 1367
786 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1368 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
787 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
788 { 1370 {
789 ncur *= elem; 1371 ncur *= elem;
790 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1372 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
791 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
793 } 1375 }
794 1376
795 return ncur; 1377 return ncur;
796} 1378}
797 1379
798static noinline void * 1380static void * noinline ecb_cold
799array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
800{ 1382{
801 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
802 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
803} 1385}
… …
806 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
807 1389
808#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
809 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
810 { \ 1392 { \
811 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
812 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
813 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
814 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
815 } 1397 }
816 1398
… …
834pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
835{ 1417{
836} 1418}
837 1419
838void noinline 1420void noinline
839ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
840{ 1422{
841 W w_ = (W)w; 1423 W w_ = (W)w;
842 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
843 1425
844 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
877} 1459}
878 1460
879/*****************************************************************************/ 1461/*****************************************************************************/
880 1462
881inline_speed void 1463inline_speed void
882fd_event_nc (EV_P_ int fd, int revents) 1464fd_event_nocheck (EV_P_ int fd, int revents)
883{ 1465{
884 ANFD *anfd = anfds + fd; 1466 ANFD *anfd = anfds + fd;
885 ev_io *w; 1467 ev_io *w;
886 1468
887 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1469 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
899fd_event (EV_P_ int fd, int revents) 1481fd_event (EV_P_ int fd, int revents)
900{ 1482{
901 ANFD *anfd = anfds + fd; 1483 ANFD *anfd = anfds + fd;
902 1484
903 if (expect_true (!anfd->reify)) 1485 if (expect_true (!anfd->reify))
904 fd_event_nc (EV_A_ fd, revents); 1486 fd_event_nocheck (EV_A_ fd, revents);
905} 1487}
906 1488
907void 1489void
908ev_feed_fd_event (EV_P_ int fd, int revents) 1490ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
909{ 1491{
910 if (fd >= 0 && fd < anfdmax) 1492 if (fd >= 0 && fd < anfdmax)
911 fd_event_nc (EV_A_ fd, revents); 1493 fd_event_nocheck (EV_A_ fd, revents);
912} 1494}
913 1495
914/* make sure the external fd watch events are in-sync */ 1496/* make sure the external fd watch events are in-sync */
915/* with the kernel/libev internal state */ 1497/* with the kernel/libev internal state */
916inline_size void 1498inline_size void
917fd_reify (EV_P) 1499fd_reify (EV_P)
918{ 1500{
919 int i; 1501 int i;
920 1502
1503#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1504 for (i = 0; i < fdchangecnt; ++i)
1505 {
1506 int fd = fdchanges [i];
1507 ANFD *anfd = anfds + fd;
1508
1509 if (anfd->reify & EV__IOFDSET && anfd->head)
1510 {
1511 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1512
1513 if (handle != anfd->handle)
1514 {
1515 unsigned long arg;
1516
1517 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1518
1519 /* handle changed, but fd didn't - we need to do it in two steps */
1520 backend_modify (EV_A_ fd, anfd->events, 0);
1521 anfd->events = 0;
1522 anfd->handle = handle;
1523 }
1524 }
1525 }
1526#endif
1527
921 for (i = 0; i < fdchangecnt; ++i) 1528 for (i = 0; i < fdchangecnt; ++i)
922 { 1529 {
923 int fd = fdchanges [i]; 1530 int fd = fdchanges [i];
924 ANFD *anfd = anfds + fd; 1531 ANFD *anfd = anfds + fd;
925 ev_io *w; 1532 ev_io *w;
926 1533
927 unsigned char events = 0; 1534 unsigned char o_events = anfd->events;
1535 unsigned char o_reify = anfd->reify;
928 1536
929 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1537 anfd->reify = 0;
930 events |= (unsigned char)w->events;
931 1538
932#if EV_SELECT_IS_WINSOCKET 1539 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
933 if (events)
934 { 1540 {
935 unsigned long arg; 1541 anfd->events = 0;
936 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1542
937 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1543 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1544 anfd->events |= (unsigned char)w->events;
1545
1546 if (o_events != anfd->events)
1547 o_reify = EV__IOFDSET; /* actually |= */
938 } 1548 }
939#endif
940 1549
941 { 1550 if (o_reify & EV__IOFDSET)
942 unsigned char o_events = anfd->events;
943 unsigned char o_reify = anfd->reify;
944
945 anfd->reify = 0;
946 anfd->events = events;
947
948 if (o_events != events || o_reify & EV__IOFDSET)
949 backend_modify (EV_A_ fd, o_events, events); 1551 backend_modify (EV_A_ fd, o_events, anfd->events);
950 }
951 } 1552 }
952 1553
953 fdchangecnt = 0; 1554 fdchangecnt = 0;
954} 1555}
955 1556
… …
967 fdchanges [fdchangecnt - 1] = fd; 1568 fdchanges [fdchangecnt - 1] = fd;
968 } 1569 }
969} 1570}
970 1571
971/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1572/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
972inline_speed void 1573inline_speed void ecb_cold
973fd_kill (EV_P_ int fd) 1574fd_kill (EV_P_ int fd)
974{ 1575{
975 ev_io *w; 1576 ev_io *w;
976 1577
977 while ((w = (ev_io *)anfds [fd].head)) 1578 while ((w = (ev_io *)anfds [fd].head))
… …
979 ev_io_stop (EV_A_ w); 1580 ev_io_stop (EV_A_ w);
980 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1581 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
981 } 1582 }
982} 1583}
983 1584
984/* check whether the given fd is atcually valid, for error recovery */ 1585/* check whether the given fd is actually valid, for error recovery */
985inline_size int 1586inline_size int ecb_cold
986fd_valid (int fd) 1587fd_valid (int fd)
987{ 1588{
988#ifdef _WIN32 1589#ifdef _WIN32
989 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1590 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
990#else 1591#else
991 return fcntl (fd, F_GETFD) != -1; 1592 return fcntl (fd, F_GETFD) != -1;
992#endif 1593#endif
993} 1594}
994 1595
995/* called on EBADF to verify fds */ 1596/* called on EBADF to verify fds */
996static void noinline 1597static void noinline ecb_cold
997fd_ebadf (EV_P) 1598fd_ebadf (EV_P)
998{ 1599{
999 int fd; 1600 int fd;
1000 1601
1001 for (fd = 0; fd < anfdmax; ++fd) 1602 for (fd = 0; fd < anfdmax; ++fd)
… …
1003 if (!fd_valid (fd) && errno == EBADF) 1604 if (!fd_valid (fd) && errno == EBADF)
1004 fd_kill (EV_A_ fd); 1605 fd_kill (EV_A_ fd);
1005} 1606}
1006 1607
1007/* called on ENOMEM in select/poll to kill some fds and retry */ 1608/* called on ENOMEM in select/poll to kill some fds and retry */
1008static void noinline 1609static void noinline ecb_cold
1009fd_enomem (EV_P) 1610fd_enomem (EV_P)
1010{ 1611{
1011 int fd; 1612 int fd;
1012 1613
1013 for (fd = anfdmax; fd--; ) 1614 for (fd = anfdmax; fd--; )
… …
1031 anfds [fd].emask = 0; 1632 anfds [fd].emask = 0;
1032 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1633 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1033 } 1634 }
1034} 1635}
1035 1636
1637/* used to prepare libev internal fd's */
1638/* this is not fork-safe */
1639inline_speed void
1640fd_intern (int fd)
1641{
1642#ifdef _WIN32
1643 unsigned long arg = 1;
1644 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1645#else
1646 fcntl (fd, F_SETFD, FD_CLOEXEC);
1647 fcntl (fd, F_SETFL, O_NONBLOCK);
1648#endif
1649}
1650
1036/*****************************************************************************/ 1651/*****************************************************************************/
1037 1652
1038/* 1653/*
1039 * the heap functions want a real array index. array index 0 uis guaranteed to not 1654 * the heap functions want a real array index. array index 0 is guaranteed to not
1040 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1655 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1041 * the branching factor of the d-tree. 1656 * the branching factor of the d-tree.
1042 */ 1657 */
1043 1658
1044/* 1659/*
… …
1192 1807
1193static ANSIG signals [EV_NSIG - 1]; 1808static ANSIG signals [EV_NSIG - 1];
1194 1809
1195/*****************************************************************************/ 1810/*****************************************************************************/
1196 1811
1197/* used to prepare libev internal fd's */ 1812#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1198/* this is not fork-safe */
1199inline_speed void
1200fd_intern (int fd)
1201{
1202#ifdef _WIN32
1203 unsigned long arg = 1;
1204 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1205#else
1206 fcntl (fd, F_SETFD, FD_CLOEXEC);
1207 fcntl (fd, F_SETFL, O_NONBLOCK);
1208#endif
1209}
1210 1813
1211static void noinline 1814static void noinline ecb_cold
1212evpipe_init (EV_P) 1815evpipe_init (EV_P)
1213{ 1816{
1214 if (!ev_is_active (&pipe_w)) 1817 if (!ev_is_active (&pipe_w))
1215 { 1818 {
1216#if EV_USE_EVENTFD 1819# if EV_USE_EVENTFD
1217 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1820 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1218 if (evfd < 0 && errno == EINVAL) 1821 if (evfd < 0 && errno == EINVAL)
1219 evfd = eventfd (0, 0); 1822 evfd = eventfd (0, 0);
1220 1823
1221 if (evfd >= 0) 1824 if (evfd >= 0)
… …
1223 evpipe [0] = -1; 1826 evpipe [0] = -1;
1224 fd_intern (evfd); /* doing it twice doesn't hurt */ 1827 fd_intern (evfd); /* doing it twice doesn't hurt */
1225 ev_io_set (&pipe_w, evfd, EV_READ); 1828 ev_io_set (&pipe_w, evfd, EV_READ);
1226 } 1829 }
1227 else 1830 else
1228#endif 1831# endif
1229 { 1832 {
1230 while (pipe (evpipe)) 1833 while (pipe (evpipe))
1231 ev_syserr ("(libev) error creating signal/async pipe"); 1834 ev_syserr ("(libev) error creating signal/async pipe");
1232 1835
1233 fd_intern (evpipe [0]); 1836 fd_intern (evpipe [0]);
… …
1238 ev_io_start (EV_A_ &pipe_w); 1841 ev_io_start (EV_A_ &pipe_w);
1239 ev_unref (EV_A); /* watcher should not keep loop alive */ 1842 ev_unref (EV_A); /* watcher should not keep loop alive */
1240 } 1843 }
1241} 1844}
1242 1845
1243inline_size void 1846inline_speed void
1244evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1847evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1245{ 1848{
1246 if (!*flag) 1849 if (expect_true (*flag))
1850 return;
1851
1852 *flag = 1;
1853
1854 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1855
1856 pipe_write_skipped = 1;
1857
1858 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1859
1860 if (pipe_write_wanted)
1247 { 1861 {
1862 int old_errno;
1863
1864 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1865
1248 int old_errno = errno; /* save errno because write might clobber it */ 1866 old_errno = errno; /* save errno because write will clobber it */
1249
1250 *flag = 1;
1251 1867
1252#if EV_USE_EVENTFD 1868#if EV_USE_EVENTFD
1253 if (evfd >= 0) 1869 if (evfd >= 0)
1254 { 1870 {
1255 uint64_t counter = 1; 1871 uint64_t counter = 1;
1256 write (evfd, &counter, sizeof (uint64_t)); 1872 write (evfd, &counter, sizeof (uint64_t));
1257 } 1873 }
1258 else 1874 else
1259#endif 1875#endif
1876 {
1877 /* win32 people keep sending patches that change this write() to send() */
1878 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1879 /* so when you think this write should be a send instead, please find out */
1880 /* where your send() is from - it's definitely not the microsoft send, and */
1881 /* tell me. thank you. */
1882 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1883 /* check the ev documentation on how to use this flag */
1260 write (evpipe [1], &old_errno, 1); 1884 write (evpipe [1], &(evpipe [1]), 1);
1885 }
1261 1886
1262 errno = old_errno; 1887 errno = old_errno;
1263 } 1888 }
1264} 1889}
1265 1890
… …
1268static void 1893static void
1269pipecb (EV_P_ ev_io *iow, int revents) 1894pipecb (EV_P_ ev_io *iow, int revents)
1270{ 1895{
1271 int i; 1896 int i;
1272 1897
1898 if (revents & EV_READ)
1899 {
1273#if EV_USE_EVENTFD 1900#if EV_USE_EVENTFD
1274 if (evfd >= 0) 1901 if (evfd >= 0)
1275 { 1902 {
1276 uint64_t counter; 1903 uint64_t counter;
1277 read (evfd, &counter, sizeof (uint64_t)); 1904 read (evfd, &counter, sizeof (uint64_t));
1278 } 1905 }
1279 else 1906 else
1280#endif 1907#endif
1281 { 1908 {
1282 char dummy; 1909 char dummy;
1910 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1283 read (evpipe [0], &dummy, 1); 1911 read (evpipe [0], &dummy, 1);
1912 }
1284 } 1913 }
1285 1914
1915 pipe_write_skipped = 0;
1916
1917#if EV_SIGNAL_ENABLE
1286 if (sig_pending) 1918 if (sig_pending)
1287 { 1919 {
1288 sig_pending = 0; 1920 sig_pending = 0;
1289 1921
1290 for (i = EV_NSIG - 1; i--; ) 1922 for (i = EV_NSIG - 1; i--; )
1291 if (expect_false (signals [i].pending)) 1923 if (expect_false (signals [i].pending))
1292 ev_feed_signal_event (EV_A_ i + 1); 1924 ev_feed_signal_event (EV_A_ i + 1);
1293 } 1925 }
1926#endif
1294 1927
1295#if EV_ASYNC_ENABLE 1928#if EV_ASYNC_ENABLE
1296 if (async_pending) 1929 if (async_pending)
1297 { 1930 {
1298 async_pending = 0; 1931 async_pending = 0;
… …
1307#endif 1940#endif
1308} 1941}
1309 1942
1310/*****************************************************************************/ 1943/*****************************************************************************/
1311 1944
1945void
1946ev_feed_signal (int signum) EV_THROW
1947{
1948#if EV_MULTIPLICITY
1949 EV_P = signals [signum - 1].loop;
1950
1951 if (!EV_A)
1952 return;
1953#endif
1954
1955 if (!ev_active (&pipe_w))
1956 return;
1957
1958 signals [signum - 1].pending = 1;
1959 evpipe_write (EV_A_ &sig_pending);
1960}
1961
1312static void 1962static void
1313ev_sighandler (int signum) 1963ev_sighandler (int signum)
1314{ 1964{
1315#if EV_MULTIPLICITY
1316 EV_P = signals [signum - 1].loop;
1317#endif
1318
1319#ifdef _WIN32 1965#ifdef _WIN32
1320 signal (signum, ev_sighandler); 1966 signal (signum, ev_sighandler);
1321#endif 1967#endif
1322 1968
1323 signals [signum - 1].pending = 1; 1969 ev_feed_signal (signum);
1324 evpipe_write (EV_A_ &sig_pending);
1325} 1970}
1326 1971
1327void noinline 1972void noinline
1328ev_feed_signal_event (EV_P_ int signum) 1973ev_feed_signal_event (EV_P_ int signum) EV_THROW
1329{ 1974{
1330 WL w; 1975 WL w;
1331 1976
1332 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1977 if (expect_false (signum <= 0 || signum > EV_NSIG))
1333 return; 1978 return;
… …
1366 break; 2011 break;
1367 } 2012 }
1368} 2013}
1369#endif 2014#endif
1370 2015
2016#endif
2017
1371/*****************************************************************************/ 2018/*****************************************************************************/
1372 2019
2020#if EV_CHILD_ENABLE
1373static WL childs [EV_PID_HASHSIZE]; 2021static WL childs [EV_PID_HASHSIZE];
1374
1375#ifndef _WIN32
1376 2022
1377static ev_signal childev; 2023static ev_signal childev;
1378 2024
1379#ifndef WIFCONTINUED 2025#ifndef WIFCONTINUED
1380# define WIFCONTINUED(status) 0 2026# define WIFCONTINUED(status) 0
… …
1385child_reap (EV_P_ int chain, int pid, int status) 2031child_reap (EV_P_ int chain, int pid, int status)
1386{ 2032{
1387 ev_child *w; 2033 ev_child *w;
1388 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2034 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1389 2035
1390 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2036 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1391 { 2037 {
1392 if ((w->pid == pid || !w->pid) 2038 if ((w->pid == pid || !w->pid)
1393 && (!traced || (w->flags & 1))) 2039 && (!traced || (w->flags & 1)))
1394 { 2040 {
1395 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2041 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1420 /* make sure we are called again until all children have been reaped */ 2066 /* make sure we are called again until all children have been reaped */
1421 /* we need to do it this way so that the callback gets called before we continue */ 2067 /* we need to do it this way so that the callback gets called before we continue */
1422 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2068 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1423 2069
1424 child_reap (EV_A_ pid, pid, status); 2070 child_reap (EV_A_ pid, pid, status);
1425 if (EV_PID_HASHSIZE > 1) 2071 if ((EV_PID_HASHSIZE) > 1)
1426 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2072 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1427} 2073}
1428 2074
1429#endif 2075#endif
1430 2076
1431/*****************************************************************************/ 2077/*****************************************************************************/
1432 2078
2079#if EV_USE_IOCP
2080# include "ev_iocp.c"
2081#endif
1433#if EV_USE_PORT 2082#if EV_USE_PORT
1434# include "ev_port.c" 2083# include "ev_port.c"
1435#endif 2084#endif
1436#if EV_USE_KQUEUE 2085#if EV_USE_KQUEUE
1437# include "ev_kqueue.c" 2086# include "ev_kqueue.c"
… …
1444#endif 2093#endif
1445#if EV_USE_SELECT 2094#if EV_USE_SELECT
1446# include "ev_select.c" 2095# include "ev_select.c"
1447#endif 2096#endif
1448 2097
1449int 2098int ecb_cold
1450ev_version_major (void) 2099ev_version_major (void) EV_THROW
1451{ 2100{
1452 return EV_VERSION_MAJOR; 2101 return EV_VERSION_MAJOR;
1453} 2102}
1454 2103
1455int 2104int ecb_cold
1456ev_version_minor (void) 2105ev_version_minor (void) EV_THROW
1457{ 2106{
1458 return EV_VERSION_MINOR; 2107 return EV_VERSION_MINOR;
1459} 2108}
1460 2109
1461/* return true if we are running with elevated privileges and should ignore env variables */ 2110/* return true if we are running with elevated privileges and should ignore env variables */
1462int inline_size 2111int inline_size ecb_cold
1463enable_secure (void) 2112enable_secure (void)
1464{ 2113{
1465#ifdef _WIN32 2114#ifdef _WIN32
1466 return 0; 2115 return 0;
1467#else 2116#else
1468 return getuid () != geteuid () 2117 return getuid () != geteuid ()
1469 || getgid () != getegid (); 2118 || getgid () != getegid ();
1470#endif 2119#endif
1471} 2120}
1472 2121
1473unsigned int 2122unsigned int ecb_cold
1474ev_supported_backends (void) 2123ev_supported_backends (void) EV_THROW
1475{ 2124{
1476 unsigned int flags = 0; 2125 unsigned int flags = 0;
1477 2126
1478 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2127 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1479 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2128 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1482 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2131 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1483 2132
1484 return flags; 2133 return flags;
1485} 2134}
1486 2135
1487unsigned int 2136unsigned int ecb_cold
1488ev_recommended_backends (void) 2137ev_recommended_backends (void) EV_THROW
1489{ 2138{
1490 unsigned int flags = ev_supported_backends (); 2139 unsigned int flags = ev_supported_backends ();
1491 2140
1492#ifndef __NetBSD__ 2141#ifndef __NetBSD__
1493 /* kqueue is borked on everything but netbsd apparently */ 2142 /* kqueue is borked on everything but netbsd apparently */
… …
1497#ifdef __APPLE__ 2146#ifdef __APPLE__
1498 /* only select works correctly on that "unix-certified" platform */ 2147 /* only select works correctly on that "unix-certified" platform */
1499 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2148 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1500 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2149 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1501#endif 2150#endif
2151#ifdef __FreeBSD__
2152 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2153#endif
1502 2154
1503 return flags; 2155 return flags;
1504} 2156}
1505 2157
2158unsigned int ecb_cold
2159ev_embeddable_backends (void) EV_THROW
2160{
2161 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2162
2163 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2164 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2165 flags &= ~EVBACKEND_EPOLL;
2166
2167 return flags;
2168}
2169
1506unsigned int 2170unsigned int
1507ev_embeddable_backends (void) 2171ev_backend (EV_P) EV_THROW
1508{ 2172{
1509 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2173 return backend;
1510
1511 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1512 /* please fix it and tell me how to detect the fix */
1513 flags &= ~EVBACKEND_EPOLL;
1514
1515 return flags;
1516} 2174}
1517 2175
2176#if EV_FEATURE_API
1518unsigned int 2177unsigned int
1519ev_backend (EV_P) 2178ev_iteration (EV_P) EV_THROW
1520{ 2179{
1521 return backend; 2180 return loop_count;
1522} 2181}
1523 2182
1524#if EV_MINIMAL < 2
1525unsigned int 2183unsigned int
1526ev_loop_count (EV_P) 2184ev_depth (EV_P) EV_THROW
1527{
1528 return loop_count;
1529}
1530
1531unsigned int
1532ev_loop_depth (EV_P)
1533{ 2185{
1534 return loop_depth; 2186 return loop_depth;
1535} 2187}
1536 2188
1537void 2189void
1538ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2190ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1539{ 2191{
1540 io_blocktime = interval; 2192 io_blocktime = interval;
1541} 2193}
1542 2194
1543void 2195void
1544ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2196ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1545{ 2197{
1546 timeout_blocktime = interval; 2198 timeout_blocktime = interval;
1547} 2199}
1548 2200
1549void 2201void
1550ev_set_userdata (EV_P_ void *data) 2202ev_set_userdata (EV_P_ void *data) EV_THROW
1551{ 2203{
1552 userdata = data; 2204 userdata = data;
1553} 2205}
1554 2206
1555void * 2207void *
1556ev_userdata (EV_P) 2208ev_userdata (EV_P) EV_THROW
1557{ 2209{
1558 return userdata; 2210 return userdata;
1559} 2211}
1560 2212
2213void
1561void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2214ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1562{ 2215{
1563 invoke_cb = invoke_pending_cb; 2216 invoke_cb = invoke_pending_cb;
1564} 2217}
1565 2218
2219void
1566void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2220ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1567{ 2221{
1568 release_cb = release; 2222 release_cb = release;
1569 acquire_cb = acquire; 2223 acquire_cb = acquire;
1570} 2224}
1571#endif 2225#endif
1572 2226
1573/* initialise a loop structure, must be zero-initialised */ 2227/* initialise a loop structure, must be zero-initialised */
1574static void noinline 2228static void noinline ecb_cold
1575loop_init (EV_P_ unsigned int flags) 2229loop_init (EV_P_ unsigned int flags) EV_THROW
1576{ 2230{
1577 if (!backend) 2231 if (!backend)
1578 { 2232 {
2233 origflags = flags;
2234
1579#if EV_USE_REALTIME 2235#if EV_USE_REALTIME
1580 if (!have_realtime) 2236 if (!have_realtime)
1581 { 2237 {
1582 struct timespec ts; 2238 struct timespec ts;
1583 2239
… …
1605 if (!(flags & EVFLAG_NOENV) 2261 if (!(flags & EVFLAG_NOENV)
1606 && !enable_secure () 2262 && !enable_secure ()
1607 && getenv ("LIBEV_FLAGS")) 2263 && getenv ("LIBEV_FLAGS"))
1608 flags = atoi (getenv ("LIBEV_FLAGS")); 2264 flags = atoi (getenv ("LIBEV_FLAGS"));
1609 2265
1610 ev_rt_now = ev_time (); 2266 ev_rt_now = ev_time ();
1611 mn_now = get_clock (); 2267 mn_now = get_clock ();
1612 now_floor = mn_now; 2268 now_floor = mn_now;
1613 rtmn_diff = ev_rt_now - mn_now; 2269 rtmn_diff = ev_rt_now - mn_now;
1614#if EV_MINIMAL < 2 2270#if EV_FEATURE_API
1615 invoke_cb = ev_invoke_pending; 2271 invoke_cb = ev_invoke_pending;
1616#endif 2272#endif
1617 2273
1618 io_blocktime = 0.; 2274 io_blocktime = 0.;
1619 timeout_blocktime = 0.; 2275 timeout_blocktime = 0.;
1620 backend = 0; 2276 backend = 0;
1621 backend_fd = -1; 2277 backend_fd = -1;
1622 sig_pending = 0; 2278 sig_pending = 0;
1623#if EV_ASYNC_ENABLE 2279#if EV_ASYNC_ENABLE
1624 async_pending = 0; 2280 async_pending = 0;
1625#endif 2281#endif
2282 pipe_write_skipped = 0;
2283 pipe_write_wanted = 0;
1626#if EV_USE_INOTIFY 2284#if EV_USE_INOTIFY
1627 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2285 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1628#endif 2286#endif
1629#if EV_USE_SIGNALFD 2287#if EV_USE_SIGNALFD
1630 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2288 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1631#endif 2289#endif
1632 2290
1633 if (!(flags & 0x0000ffffU)) 2291 if (!(flags & EVBACKEND_MASK))
1634 flags |= ev_recommended_backends (); 2292 flags |= ev_recommended_backends ();
1635 2293
2294#if EV_USE_IOCP
2295 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2296#endif
1636#if EV_USE_PORT 2297#if EV_USE_PORT
1637 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2298 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1638#endif 2299#endif
1639#if EV_USE_KQUEUE 2300#if EV_USE_KQUEUE
1640 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2301 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1649 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2310 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1650#endif 2311#endif
1651 2312
1652 ev_prepare_init (&pending_w, pendingcb); 2313 ev_prepare_init (&pending_w, pendingcb);
1653 2314
2315#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1654 ev_init (&pipe_w, pipecb); 2316 ev_init (&pipe_w, pipecb);
1655 ev_set_priority (&pipe_w, EV_MAXPRI); 2317 ev_set_priority (&pipe_w, EV_MAXPRI);
2318#endif
1656 } 2319 }
1657} 2320}
1658 2321
1659/* free up a loop structure */ 2322/* free up a loop structure */
1660static void noinline 2323void ecb_cold
1661loop_destroy (EV_P) 2324ev_loop_destroy (EV_P)
1662{ 2325{
1663 int i; 2326 int i;
2327
2328#if EV_MULTIPLICITY
2329 /* mimic free (0) */
2330 if (!EV_A)
2331 return;
2332#endif
2333
2334#if EV_CLEANUP_ENABLE
2335 /* queue cleanup watchers (and execute them) */
2336 if (expect_false (cleanupcnt))
2337 {
2338 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2339 EV_INVOKE_PENDING;
2340 }
2341#endif
2342
2343#if EV_CHILD_ENABLE
2344 if (ev_is_active (&childev))
2345 {
2346 ev_ref (EV_A); /* child watcher */
2347 ev_signal_stop (EV_A_ &childev);
2348 }
2349#endif
1664 2350
1665 if (ev_is_active (&pipe_w)) 2351 if (ev_is_active (&pipe_w))
1666 { 2352 {
1667 /*ev_ref (EV_A);*/ 2353 /*ev_ref (EV_A);*/
1668 /*ev_io_stop (EV_A_ &pipe_w);*/ 2354 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1690#endif 2376#endif
1691 2377
1692 if (backend_fd >= 0) 2378 if (backend_fd >= 0)
1693 close (backend_fd); 2379 close (backend_fd);
1694 2380
2381#if EV_USE_IOCP
2382 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2383#endif
1695#if EV_USE_PORT 2384#if EV_USE_PORT
1696 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2385 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1697#endif 2386#endif
1698#if EV_USE_KQUEUE 2387#if EV_USE_KQUEUE
1699 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2388 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1726 array_free (periodic, EMPTY); 2415 array_free (periodic, EMPTY);
1727#endif 2416#endif
1728#if EV_FORK_ENABLE 2417#if EV_FORK_ENABLE
1729 array_free (fork, EMPTY); 2418 array_free (fork, EMPTY);
1730#endif 2419#endif
2420#if EV_CLEANUP_ENABLE
2421 array_free (cleanup, EMPTY);
2422#endif
1731 array_free (prepare, EMPTY); 2423 array_free (prepare, EMPTY);
1732 array_free (check, EMPTY); 2424 array_free (check, EMPTY);
1733#if EV_ASYNC_ENABLE 2425#if EV_ASYNC_ENABLE
1734 array_free (async, EMPTY); 2426 array_free (async, EMPTY);
1735#endif 2427#endif
1736 2428
1737 backend = 0; 2429 backend = 0;
2430
2431#if EV_MULTIPLICITY
2432 if (ev_is_default_loop (EV_A))
2433#endif
2434 ev_default_loop_ptr = 0;
2435#if EV_MULTIPLICITY
2436 else
2437 ev_free (EV_A);
2438#endif
1738} 2439}
1739 2440
1740#if EV_USE_INOTIFY 2441#if EV_USE_INOTIFY
1741inline_size void infy_fork (EV_P); 2442inline_size void infy_fork (EV_P);
1742#endif 2443#endif
… …
1757 infy_fork (EV_A); 2458 infy_fork (EV_A);
1758#endif 2459#endif
1759 2460
1760 if (ev_is_active (&pipe_w)) 2461 if (ev_is_active (&pipe_w))
1761 { 2462 {
1762 /* this "locks" the handlers against writing to the pipe */ 2463 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1763 /* while we modify the fd vars */
1764 sig_pending = 1;
1765#if EV_ASYNC_ENABLE
1766 async_pending = 1;
1767#endif
1768 2464
1769 ev_ref (EV_A); 2465 ev_ref (EV_A);
1770 ev_io_stop (EV_A_ &pipe_w); 2466 ev_io_stop (EV_A_ &pipe_w);
1771 2467
1772#if EV_USE_EVENTFD 2468#if EV_USE_EVENTFD
… …
1778 { 2474 {
1779 EV_WIN32_CLOSE_FD (evpipe [0]); 2475 EV_WIN32_CLOSE_FD (evpipe [0]);
1780 EV_WIN32_CLOSE_FD (evpipe [1]); 2476 EV_WIN32_CLOSE_FD (evpipe [1]);
1781 } 2477 }
1782 2478
2479#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1783 evpipe_init (EV_A); 2480 evpipe_init (EV_A);
1784 /* now iterate over everything, in case we missed something */ 2481 /* now iterate over everything, in case we missed something */
1785 pipecb (EV_A_ &pipe_w, EV_READ); 2482 pipecb (EV_A_ &pipe_w, EV_READ);
2483#endif
1786 } 2484 }
1787 2485
1788 postfork = 0; 2486 postfork = 0;
1789} 2487}
1790 2488
1791#if EV_MULTIPLICITY 2489#if EV_MULTIPLICITY
1792 2490
1793struct ev_loop * 2491struct ev_loop * ecb_cold
1794ev_loop_new (unsigned int flags) 2492ev_loop_new (unsigned int flags) EV_THROW
1795{ 2493{
1796 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2494 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1797 2495
1798 memset (EV_A, 0, sizeof (struct ev_loop)); 2496 memset (EV_A, 0, sizeof (struct ev_loop));
1799 loop_init (EV_A_ flags); 2497 loop_init (EV_A_ flags);
1800 2498
1801 if (ev_backend (EV_A)) 2499 if (ev_backend (EV_A))
1802 return EV_A; 2500 return EV_A;
1803 2501
2502 ev_free (EV_A);
1804 return 0; 2503 return 0;
1805} 2504}
1806 2505
1807void
1808ev_loop_destroy (EV_P)
1809{
1810 loop_destroy (EV_A);
1811 ev_free (loop);
1812}
1813
1814void
1815ev_loop_fork (EV_P)
1816{
1817 postfork = 1; /* must be in line with ev_default_fork */
1818}
1819#endif /* multiplicity */ 2506#endif /* multiplicity */
1820 2507
1821#if EV_VERIFY 2508#if EV_VERIFY
1822static void noinline 2509static void noinline ecb_cold
1823verify_watcher (EV_P_ W w) 2510verify_watcher (EV_P_ W w)
1824{ 2511{
1825 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2512 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1826 2513
1827 if (w->pending) 2514 if (w->pending)
1828 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2515 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1829} 2516}
1830 2517
1831static void noinline 2518static void noinline ecb_cold
1832verify_heap (EV_P_ ANHE *heap, int N) 2519verify_heap (EV_P_ ANHE *heap, int N)
1833{ 2520{
1834 int i; 2521 int i;
1835 2522
1836 for (i = HEAP0; i < N + HEAP0; ++i) 2523 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1841 2528
1842 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2529 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1843 } 2530 }
1844} 2531}
1845 2532
1846static void noinline 2533static void noinline ecb_cold
1847array_verify (EV_P_ W *ws, int cnt) 2534array_verify (EV_P_ W *ws, int cnt)
1848{ 2535{
1849 while (cnt--) 2536 while (cnt--)
1850 { 2537 {
1851 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2538 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1852 verify_watcher (EV_A_ ws [cnt]); 2539 verify_watcher (EV_A_ ws [cnt]);
1853 } 2540 }
1854} 2541}
1855#endif 2542#endif
1856 2543
1857#if EV_MINIMAL < 2 2544#if EV_FEATURE_API
1858void 2545void ecb_cold
1859ev_loop_verify (EV_P) 2546ev_verify (EV_P) EV_THROW
1860{ 2547{
1861#if EV_VERIFY 2548#if EV_VERIFY
1862 int i; 2549 int i;
1863 WL w; 2550 WL w;
1864 2551
… …
1898#if EV_FORK_ENABLE 2585#if EV_FORK_ENABLE
1899 assert (forkmax >= forkcnt); 2586 assert (forkmax >= forkcnt);
1900 array_verify (EV_A_ (W *)forks, forkcnt); 2587 array_verify (EV_A_ (W *)forks, forkcnt);
1901#endif 2588#endif
1902 2589
2590#if EV_CLEANUP_ENABLE
2591 assert (cleanupmax >= cleanupcnt);
2592 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2593#endif
2594
1903#if EV_ASYNC_ENABLE 2595#if EV_ASYNC_ENABLE
1904 assert (asyncmax >= asynccnt); 2596 assert (asyncmax >= asynccnt);
1905 array_verify (EV_A_ (W *)asyncs, asynccnt); 2597 array_verify (EV_A_ (W *)asyncs, asynccnt);
1906#endif 2598#endif
1907 2599
2600#if EV_PREPARE_ENABLE
1908 assert (preparemax >= preparecnt); 2601 assert (preparemax >= preparecnt);
1909 array_verify (EV_A_ (W *)prepares, preparecnt); 2602 array_verify (EV_A_ (W *)prepares, preparecnt);
2603#endif
1910 2604
2605#if EV_CHECK_ENABLE
1911 assert (checkmax >= checkcnt); 2606 assert (checkmax >= checkcnt);
1912 array_verify (EV_A_ (W *)checks, checkcnt); 2607 array_verify (EV_A_ (W *)checks, checkcnt);
2608#endif
1913 2609
1914# if 0 2610# if 0
2611#if EV_CHILD_ENABLE
1915 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2612 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1916 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2613 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2614#endif
1917# endif 2615# endif
1918#endif 2616#endif
1919} 2617}
1920#endif 2618#endif
1921 2619
1922#if EV_MULTIPLICITY 2620#if EV_MULTIPLICITY
1923struct ev_loop * 2621struct ev_loop * ecb_cold
1924ev_default_loop_init (unsigned int flags)
1925#else 2622#else
1926int 2623int
2624#endif
1927ev_default_loop (unsigned int flags) 2625ev_default_loop (unsigned int flags) EV_THROW
1928#endif
1929{ 2626{
1930 if (!ev_default_loop_ptr) 2627 if (!ev_default_loop_ptr)
1931 { 2628 {
1932#if EV_MULTIPLICITY 2629#if EV_MULTIPLICITY
1933 EV_P = ev_default_loop_ptr = &default_loop_struct; 2630 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1937 2634
1938 loop_init (EV_A_ flags); 2635 loop_init (EV_A_ flags);
1939 2636
1940 if (ev_backend (EV_A)) 2637 if (ev_backend (EV_A))
1941 { 2638 {
1942#ifndef _WIN32 2639#if EV_CHILD_ENABLE
1943 ev_signal_init (&childev, childcb, SIGCHLD); 2640 ev_signal_init (&childev, childcb, SIGCHLD);
1944 ev_set_priority (&childev, EV_MAXPRI); 2641 ev_set_priority (&childev, EV_MAXPRI);
1945 ev_signal_start (EV_A_ &childev); 2642 ev_signal_start (EV_A_ &childev);
1946 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2643 ev_unref (EV_A); /* child watcher should not keep loop alive */
1947#endif 2644#endif
… …
1952 2649
1953 return ev_default_loop_ptr; 2650 return ev_default_loop_ptr;
1954} 2651}
1955 2652
1956void 2653void
1957ev_default_destroy (void) 2654ev_loop_fork (EV_P) EV_THROW
1958{ 2655{
1959#if EV_MULTIPLICITY
1960 EV_P = ev_default_loop_ptr;
1961#endif
1962
1963 ev_default_loop_ptr = 0;
1964
1965#ifndef _WIN32
1966 ev_ref (EV_A); /* child watcher */
1967 ev_signal_stop (EV_A_ &childev);
1968#endif
1969
1970 loop_destroy (EV_A);
1971}
1972
1973void
1974ev_default_fork (void)
1975{
1976#if EV_MULTIPLICITY
1977 EV_P = ev_default_loop_ptr;
1978#endif
1979
1980 postfork = 1; /* must be in line with ev_loop_fork */ 2656 postfork = 1; /* must be in line with ev_default_fork */
1981} 2657}
1982 2658
1983/*****************************************************************************/ 2659/*****************************************************************************/
1984 2660
1985void 2661void
… …
1987{ 2663{
1988 EV_CB_INVOKE ((W)w, revents); 2664 EV_CB_INVOKE ((W)w, revents);
1989} 2665}
1990 2666
1991unsigned int 2667unsigned int
1992ev_pending_count (EV_P) 2668ev_pending_count (EV_P) EV_THROW
1993{ 2669{
1994 int pri; 2670 int pri;
1995 unsigned int count = 0; 2671 unsigned int count = 0;
1996 2672
1997 for (pri = NUMPRI; pri--; ) 2673 for (pri = NUMPRI; pri--; )
… …
2007 2683
2008 for (pri = NUMPRI; pri--; ) 2684 for (pri = NUMPRI; pri--; )
2009 while (pendingcnt [pri]) 2685 while (pendingcnt [pri])
2010 { 2686 {
2011 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2687 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2012
2013 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2014 /* ^ this is no longer true, as pending_w could be here */
2015 2688
2016 p->w->pending = 0; 2689 p->w->pending = 0;
2017 EV_CB_INVOKE (p->w, p->events); 2690 EV_CB_INVOKE (p->w, p->events);
2018 EV_FREQUENT_CHECK; 2691 EV_FREQUENT_CHECK;
2019 } 2692 }
… …
2076 EV_FREQUENT_CHECK; 2749 EV_FREQUENT_CHECK;
2077 feed_reverse (EV_A_ (W)w); 2750 feed_reverse (EV_A_ (W)w);
2078 } 2751 }
2079 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2752 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2080 2753
2081 feed_reverse_done (EV_A_ EV_TIMEOUT); 2754 feed_reverse_done (EV_A_ EV_TIMER);
2082 } 2755 }
2083} 2756}
2084 2757
2085#if EV_PERIODIC_ENABLE 2758#if EV_PERIODIC_ENABLE
2759
2760static void noinline
2761periodic_recalc (EV_P_ ev_periodic *w)
2762{
2763 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2764 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2765
2766 /* the above almost always errs on the low side */
2767 while (at <= ev_rt_now)
2768 {
2769 ev_tstamp nat = at + w->interval;
2770
2771 /* when resolution fails us, we use ev_rt_now */
2772 if (expect_false (nat == at))
2773 {
2774 at = ev_rt_now;
2775 break;
2776 }
2777
2778 at = nat;
2779 }
2780
2781 ev_at (w) = at;
2782}
2783
2086/* make periodics pending */ 2784/* make periodics pending */
2087inline_size void 2785inline_size void
2088periodics_reify (EV_P) 2786periodics_reify (EV_P)
2089{ 2787{
2090 EV_FREQUENT_CHECK; 2788 EV_FREQUENT_CHECK;
… …
2109 ANHE_at_cache (periodics [HEAP0]); 2807 ANHE_at_cache (periodics [HEAP0]);
2110 downheap (periodics, periodiccnt, HEAP0); 2808 downheap (periodics, periodiccnt, HEAP0);
2111 } 2809 }
2112 else if (w->interval) 2810 else if (w->interval)
2113 { 2811 {
2114 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2812 periodic_recalc (EV_A_ w);
2115 /* if next trigger time is not sufficiently in the future, put it there */
2116 /* this might happen because of floating point inexactness */
2117 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2118 {
2119 ev_at (w) += w->interval;
2120
2121 /* if interval is unreasonably low we might still have a time in the past */
2122 /* so correct this. this will make the periodic very inexact, but the user */
2123 /* has effectively asked to get triggered more often than possible */
2124 if (ev_at (w) < ev_rt_now)
2125 ev_at (w) = ev_rt_now;
2126 }
2127
2128 ANHE_at_cache (periodics [HEAP0]); 2813 ANHE_at_cache (periodics [HEAP0]);
2129 downheap (periodics, periodiccnt, HEAP0); 2814 downheap (periodics, periodiccnt, HEAP0);
2130 } 2815 }
2131 else 2816 else
2132 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2817 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2139 feed_reverse_done (EV_A_ EV_PERIODIC); 2824 feed_reverse_done (EV_A_ EV_PERIODIC);
2140 } 2825 }
2141} 2826}
2142 2827
2143/* simply recalculate all periodics */ 2828/* simply recalculate all periodics */
2144/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2829/* TODO: maybe ensure that at least one event happens when jumping forward? */
2145static void noinline 2830static void noinline ecb_cold
2146periodics_reschedule (EV_P) 2831periodics_reschedule (EV_P)
2147{ 2832{
2148 int i; 2833 int i;
2149 2834
2150 /* adjust periodics after time jump */ 2835 /* adjust periodics after time jump */
… …
2153 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2838 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2154 2839
2155 if (w->reschedule_cb) 2840 if (w->reschedule_cb)
2156 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2841 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2157 else if (w->interval) 2842 else if (w->interval)
2158 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2843 periodic_recalc (EV_A_ w);
2159 2844
2160 ANHE_at_cache (periodics [i]); 2845 ANHE_at_cache (periodics [i]);
2161 } 2846 }
2162 2847
2163 reheap (periodics, periodiccnt); 2848 reheap (periodics, periodiccnt);
2164} 2849}
2165#endif 2850#endif
2166 2851
2167/* adjust all timers by a given offset */ 2852/* adjust all timers by a given offset */
2168static void noinline 2853static void noinline ecb_cold
2169timers_reschedule (EV_P_ ev_tstamp adjust) 2854timers_reschedule (EV_P_ ev_tstamp adjust)
2170{ 2855{
2171 int i; 2856 int i;
2172 2857
2173 for (i = 0; i < timercnt; ++i) 2858 for (i = 0; i < timercnt; ++i)
… …
2210 * doesn't hurt either as we only do this on time-jumps or 2895 * doesn't hurt either as we only do this on time-jumps or
2211 * in the unlikely event of having been preempted here. 2896 * in the unlikely event of having been preempted here.
2212 */ 2897 */
2213 for (i = 4; --i; ) 2898 for (i = 4; --i; )
2214 { 2899 {
2900 ev_tstamp diff;
2215 rtmn_diff = ev_rt_now - mn_now; 2901 rtmn_diff = ev_rt_now - mn_now;
2216 2902
2903 diff = odiff - rtmn_diff;
2904
2217 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2905 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2218 return; /* all is well */ 2906 return; /* all is well */
2219 2907
2220 ev_rt_now = ev_time (); 2908 ev_rt_now = ev_time ();
2221 mn_now = get_clock (); 2909 mn_now = get_clock ();
2222 now_floor = mn_now; 2910 now_floor = mn_now;
… …
2244 2932
2245 mn_now = ev_rt_now; 2933 mn_now = ev_rt_now;
2246 } 2934 }
2247} 2935}
2248 2936
2249void 2937int
2250ev_loop (EV_P_ int flags) 2938ev_run (EV_P_ int flags)
2251{ 2939{
2252#if EV_MINIMAL < 2 2940#if EV_FEATURE_API
2253 ++loop_depth; 2941 ++loop_depth;
2254#endif 2942#endif
2255 2943
2256 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2944 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2257 2945
2258 loop_done = EVUNLOOP_CANCEL; 2946 loop_done = EVBREAK_CANCEL;
2259 2947
2260 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2948 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2261 2949
2262 do 2950 do
2263 { 2951 {
2264#if EV_VERIFY >= 2 2952#if EV_VERIFY >= 2
2265 ev_loop_verify (EV_A); 2953 ev_verify (EV_A);
2266#endif 2954#endif
2267 2955
2268#ifndef _WIN32 2956#ifndef _WIN32
2269 if (expect_false (curpid)) /* penalise the forking check even more */ 2957 if (expect_false (curpid)) /* penalise the forking check even more */
2270 if (expect_false (getpid () != curpid)) 2958 if (expect_false (getpid () != curpid))
… …
2282 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2970 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2283 EV_INVOKE_PENDING; 2971 EV_INVOKE_PENDING;
2284 } 2972 }
2285#endif 2973#endif
2286 2974
2975#if EV_PREPARE_ENABLE
2287 /* queue prepare watchers (and execute them) */ 2976 /* queue prepare watchers (and execute them) */
2288 if (expect_false (preparecnt)) 2977 if (expect_false (preparecnt))
2289 { 2978 {
2290 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2979 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2291 EV_INVOKE_PENDING; 2980 EV_INVOKE_PENDING;
2292 } 2981 }
2982#endif
2293 2983
2294 if (expect_false (loop_done)) 2984 if (expect_false (loop_done))
2295 break; 2985 break;
2296 2986
2297 /* we might have forked, so reify kernel state if necessary */ 2987 /* we might have forked, so reify kernel state if necessary */
… …
2304 /* calculate blocking time */ 2994 /* calculate blocking time */
2305 { 2995 {
2306 ev_tstamp waittime = 0.; 2996 ev_tstamp waittime = 0.;
2307 ev_tstamp sleeptime = 0.; 2997 ev_tstamp sleeptime = 0.;
2308 2998
2999 /* remember old timestamp for io_blocktime calculation */
3000 ev_tstamp prev_mn_now = mn_now;
3001
3002 /* update time to cancel out callback processing overhead */
3003 time_update (EV_A_ 1e100);
3004
3005 /* from now on, we want a pipe-wake-up */
3006 pipe_write_wanted = 1;
3007
3008 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3009
2309 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3010 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2310 { 3011 {
2311 /* remember old timestamp for io_blocktime calculation */
2312 ev_tstamp prev_mn_now = mn_now;
2313
2314 /* update time to cancel out callback processing overhead */
2315 time_update (EV_A_ 1e100);
2316
2317 waittime = MAX_BLOCKTIME; 3012 waittime = MAX_BLOCKTIME;
2318 3013
2319 if (timercnt) 3014 if (timercnt)
2320 { 3015 {
2321 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3016 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2322 if (waittime > to) waittime = to; 3017 if (waittime > to) waittime = to;
2323 } 3018 }
2324 3019
2325#if EV_PERIODIC_ENABLE 3020#if EV_PERIODIC_ENABLE
2326 if (periodiccnt) 3021 if (periodiccnt)
2327 { 3022 {
2328 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3023 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2329 if (waittime > to) waittime = to; 3024 if (waittime > to) waittime = to;
2330 } 3025 }
2331#endif 3026#endif
2332 3027
2333 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3028 /* don't let timeouts decrease the waittime below timeout_blocktime */
2334 if (expect_false (waittime < timeout_blocktime)) 3029 if (expect_false (waittime < timeout_blocktime))
2335 waittime = timeout_blocktime; 3030 waittime = timeout_blocktime;
3031
3032 /* at this point, we NEED to wait, so we have to ensure */
3033 /* to pass a minimum nonzero value to the backend */
3034 if (expect_false (waittime < backend_mintime))
3035 waittime = backend_mintime;
2336 3036
2337 /* extra check because io_blocktime is commonly 0 */ 3037 /* extra check because io_blocktime is commonly 0 */
2338 if (expect_false (io_blocktime)) 3038 if (expect_false (io_blocktime))
2339 { 3039 {
2340 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3040 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2341 3041
2342 if (sleeptime > waittime - backend_fudge) 3042 if (sleeptime > waittime - backend_mintime)
2343 sleeptime = waittime - backend_fudge; 3043 sleeptime = waittime - backend_mintime;
2344 3044
2345 if (expect_true (sleeptime > 0.)) 3045 if (expect_true (sleeptime > 0.))
2346 { 3046 {
2347 ev_sleep (sleeptime); 3047 ev_sleep (sleeptime);
2348 waittime -= sleeptime; 3048 waittime -= sleeptime;
2349 } 3049 }
2350 } 3050 }
2351 } 3051 }
2352 3052
2353#if EV_MINIMAL < 2 3053#if EV_FEATURE_API
2354 ++loop_count; 3054 ++loop_count;
2355#endif 3055#endif
2356 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3056 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2357 backend_poll (EV_A_ waittime); 3057 backend_poll (EV_A_ waittime);
2358 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3058 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3059
3060 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3061
3062 if (pipe_write_skipped)
3063 {
3064 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3065 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3066 }
3067
2359 3068
2360 /* update ev_rt_now, do magic */ 3069 /* update ev_rt_now, do magic */
2361 time_update (EV_A_ waittime + sleeptime); 3070 time_update (EV_A_ waittime + sleeptime);
2362 } 3071 }
2363 3072
… …
2370#if EV_IDLE_ENABLE 3079#if EV_IDLE_ENABLE
2371 /* queue idle watchers unless other events are pending */ 3080 /* queue idle watchers unless other events are pending */
2372 idle_reify (EV_A); 3081 idle_reify (EV_A);
2373#endif 3082#endif
2374 3083
3084#if EV_CHECK_ENABLE
2375 /* queue check watchers, to be executed first */ 3085 /* queue check watchers, to be executed first */
2376 if (expect_false (checkcnt)) 3086 if (expect_false (checkcnt))
2377 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3087 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3088#endif
2378 3089
2379 EV_INVOKE_PENDING; 3090 EV_INVOKE_PENDING;
2380 } 3091 }
2381 while (expect_true ( 3092 while (expect_true (
2382 activecnt 3093 activecnt
2383 && !loop_done 3094 && !loop_done
2384 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3095 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2385 )); 3096 ));
2386 3097
2387 if (loop_done == EVUNLOOP_ONE) 3098 if (loop_done == EVBREAK_ONE)
2388 loop_done = EVUNLOOP_CANCEL; 3099 loop_done = EVBREAK_CANCEL;
2389 3100
2390#if EV_MINIMAL < 2 3101#if EV_FEATURE_API
2391 --loop_depth; 3102 --loop_depth;
2392#endif 3103#endif
3104
3105 return activecnt;
2393} 3106}
2394 3107
2395void 3108void
2396ev_unloop (EV_P_ int how) 3109ev_break (EV_P_ int how) EV_THROW
2397{ 3110{
2398 loop_done = how; 3111 loop_done = how;
2399} 3112}
2400 3113
2401void 3114void
2402ev_ref (EV_P) 3115ev_ref (EV_P) EV_THROW
2403{ 3116{
2404 ++activecnt; 3117 ++activecnt;
2405} 3118}
2406 3119
2407void 3120void
2408ev_unref (EV_P) 3121ev_unref (EV_P) EV_THROW
2409{ 3122{
2410 --activecnt; 3123 --activecnt;
2411} 3124}
2412 3125
2413void 3126void
2414ev_now_update (EV_P) 3127ev_now_update (EV_P) EV_THROW
2415{ 3128{
2416 time_update (EV_A_ 1e100); 3129 time_update (EV_A_ 1e100);
2417} 3130}
2418 3131
2419void 3132void
2420ev_suspend (EV_P) 3133ev_suspend (EV_P) EV_THROW
2421{ 3134{
2422 ev_now_update (EV_A); 3135 ev_now_update (EV_A);
2423} 3136}
2424 3137
2425void 3138void
2426ev_resume (EV_P) 3139ev_resume (EV_P) EV_THROW
2427{ 3140{
2428 ev_tstamp mn_prev = mn_now; 3141 ev_tstamp mn_prev = mn_now;
2429 3142
2430 ev_now_update (EV_A); 3143 ev_now_update (EV_A);
2431 timers_reschedule (EV_A_ mn_now - mn_prev); 3144 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2470 w->pending = 0; 3183 w->pending = 0;
2471 } 3184 }
2472} 3185}
2473 3186
2474int 3187int
2475ev_clear_pending (EV_P_ void *w) 3188ev_clear_pending (EV_P_ void *w) EV_THROW
2476{ 3189{
2477 W w_ = (W)w; 3190 W w_ = (W)w;
2478 int pending = w_->pending; 3191 int pending = w_->pending;
2479 3192
2480 if (expect_true (pending)) 3193 if (expect_true (pending))
… …
2513} 3226}
2514 3227
2515/*****************************************************************************/ 3228/*****************************************************************************/
2516 3229
2517void noinline 3230void noinline
2518ev_io_start (EV_P_ ev_io *w) 3231ev_io_start (EV_P_ ev_io *w) EV_THROW
2519{ 3232{
2520 int fd = w->fd; 3233 int fd = w->fd;
2521 3234
2522 if (expect_false (ev_is_active (w))) 3235 if (expect_false (ev_is_active (w)))
2523 return; 3236 return;
… …
2536 3249
2537 EV_FREQUENT_CHECK; 3250 EV_FREQUENT_CHECK;
2538} 3251}
2539 3252
2540void noinline 3253void noinline
2541ev_io_stop (EV_P_ ev_io *w) 3254ev_io_stop (EV_P_ ev_io *w) EV_THROW
2542{ 3255{
2543 clear_pending (EV_A_ (W)w); 3256 clear_pending (EV_A_ (W)w);
2544 if (expect_false (!ev_is_active (w))) 3257 if (expect_false (!ev_is_active (w)))
2545 return; 3258 return;
2546 3259
… …
2549 EV_FREQUENT_CHECK; 3262 EV_FREQUENT_CHECK;
2550 3263
2551 wlist_del (&anfds[w->fd].head, (WL)w); 3264 wlist_del (&anfds[w->fd].head, (WL)w);
2552 ev_stop (EV_A_ (W)w); 3265 ev_stop (EV_A_ (W)w);
2553 3266
2554 fd_change (EV_A_ w->fd, 1); 3267 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2555 3268
2556 EV_FREQUENT_CHECK; 3269 EV_FREQUENT_CHECK;
2557} 3270}
2558 3271
2559void noinline 3272void noinline
2560ev_timer_start (EV_P_ ev_timer *w) 3273ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2561{ 3274{
2562 if (expect_false (ev_is_active (w))) 3275 if (expect_false (ev_is_active (w)))
2563 return; 3276 return;
2564 3277
2565 ev_at (w) += mn_now; 3278 ev_at (w) += mn_now;
… …
2579 3292
2580 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3293 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2581} 3294}
2582 3295
2583void noinline 3296void noinline
2584ev_timer_stop (EV_P_ ev_timer *w) 3297ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2585{ 3298{
2586 clear_pending (EV_A_ (W)w); 3299 clear_pending (EV_A_ (W)w);
2587 if (expect_false (!ev_is_active (w))) 3300 if (expect_false (!ev_is_active (w)))
2588 return; 3301 return;
2589 3302
… …
2609 3322
2610 EV_FREQUENT_CHECK; 3323 EV_FREQUENT_CHECK;
2611} 3324}
2612 3325
2613void noinline 3326void noinline
2614ev_timer_again (EV_P_ ev_timer *w) 3327ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2615{ 3328{
2616 EV_FREQUENT_CHECK; 3329 EV_FREQUENT_CHECK;
3330
3331 clear_pending (EV_A_ (W)w);
2617 3332
2618 if (ev_is_active (w)) 3333 if (ev_is_active (w))
2619 { 3334 {
2620 if (w->repeat) 3335 if (w->repeat)
2621 { 3336 {
… …
2634 3349
2635 EV_FREQUENT_CHECK; 3350 EV_FREQUENT_CHECK;
2636} 3351}
2637 3352
2638ev_tstamp 3353ev_tstamp
2639ev_timer_remaining (EV_P_ ev_timer *w) 3354ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2640{ 3355{
2641 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3356 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2642} 3357}
2643 3358
2644#if EV_PERIODIC_ENABLE 3359#if EV_PERIODIC_ENABLE
2645void noinline 3360void noinline
2646ev_periodic_start (EV_P_ ev_periodic *w) 3361ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2647{ 3362{
2648 if (expect_false (ev_is_active (w))) 3363 if (expect_false (ev_is_active (w)))
2649 return; 3364 return;
2650 3365
2651 if (w->reschedule_cb) 3366 if (w->reschedule_cb)
2652 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3367 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2653 else if (w->interval) 3368 else if (w->interval)
2654 { 3369 {
2655 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3370 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2656 /* this formula differs from the one in periodic_reify because we do not always round up */ 3371 periodic_recalc (EV_A_ w);
2657 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2658 } 3372 }
2659 else 3373 else
2660 ev_at (w) = w->offset; 3374 ev_at (w) = w->offset;
2661 3375
2662 EV_FREQUENT_CHECK; 3376 EV_FREQUENT_CHECK;
… …
2672 3386
2673 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3387 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2674} 3388}
2675 3389
2676void noinline 3390void noinline
2677ev_periodic_stop (EV_P_ ev_periodic *w) 3391ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2678{ 3392{
2679 clear_pending (EV_A_ (W)w); 3393 clear_pending (EV_A_ (W)w);
2680 if (expect_false (!ev_is_active (w))) 3394 if (expect_false (!ev_is_active (w)))
2681 return; 3395 return;
2682 3396
… …
2700 3414
2701 EV_FREQUENT_CHECK; 3415 EV_FREQUENT_CHECK;
2702} 3416}
2703 3417
2704void noinline 3418void noinline
2705ev_periodic_again (EV_P_ ev_periodic *w) 3419ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2706{ 3420{
2707 /* TODO: use adjustheap and recalculation */ 3421 /* TODO: use adjustheap and recalculation */
2708 ev_periodic_stop (EV_A_ w); 3422 ev_periodic_stop (EV_A_ w);
2709 ev_periodic_start (EV_A_ w); 3423 ev_periodic_start (EV_A_ w);
2710} 3424}
… …
2712 3426
2713#ifndef SA_RESTART 3427#ifndef SA_RESTART
2714# define SA_RESTART 0 3428# define SA_RESTART 0
2715#endif 3429#endif
2716 3430
3431#if EV_SIGNAL_ENABLE
3432
2717void noinline 3433void noinline
2718ev_signal_start (EV_P_ ev_signal *w) 3434ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2719{ 3435{
2720 if (expect_false (ev_is_active (w))) 3436 if (expect_false (ev_is_active (w)))
2721 return; 3437 return;
2722 3438
2723 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3439 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2781 sa.sa_handler = ev_sighandler; 3497 sa.sa_handler = ev_sighandler;
2782 sigfillset (&sa.sa_mask); 3498 sigfillset (&sa.sa_mask);
2783 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3499 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2784 sigaction (w->signum, &sa, 0); 3500 sigaction (w->signum, &sa, 0);
2785 3501
3502 if (origflags & EVFLAG_NOSIGMASK)
3503 {
2786 sigemptyset (&sa.sa_mask); 3504 sigemptyset (&sa.sa_mask);
2787 sigaddset (&sa.sa_mask, w->signum); 3505 sigaddset (&sa.sa_mask, w->signum);
2788 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3506 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3507 }
2789#endif 3508#endif
2790 } 3509 }
2791 3510
2792 EV_FREQUENT_CHECK; 3511 EV_FREQUENT_CHECK;
2793} 3512}
2794 3513
2795void noinline 3514void noinline
2796ev_signal_stop (EV_P_ ev_signal *w) 3515ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2797{ 3516{
2798 clear_pending (EV_A_ (W)w); 3517 clear_pending (EV_A_ (W)w);
2799 if (expect_false (!ev_is_active (w))) 3518 if (expect_false (!ev_is_active (w)))
2800 return; 3519 return;
2801 3520
… …
2827 } 3546 }
2828 3547
2829 EV_FREQUENT_CHECK; 3548 EV_FREQUENT_CHECK;
2830} 3549}
2831 3550
3551#endif
3552
3553#if EV_CHILD_ENABLE
3554
2832void 3555void
2833ev_child_start (EV_P_ ev_child *w) 3556ev_child_start (EV_P_ ev_child *w) EV_THROW
2834{ 3557{
2835#if EV_MULTIPLICITY 3558#if EV_MULTIPLICITY
2836 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3559 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2837#endif 3560#endif
2838 if (expect_false (ev_is_active (w))) 3561 if (expect_false (ev_is_active (w)))
2839 return; 3562 return;
2840 3563
2841 EV_FREQUENT_CHECK; 3564 EV_FREQUENT_CHECK;
2842 3565
2843 ev_start (EV_A_ (W)w, 1); 3566 ev_start (EV_A_ (W)w, 1);
2844 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3567 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845 3568
2846 EV_FREQUENT_CHECK; 3569 EV_FREQUENT_CHECK;
2847} 3570}
2848 3571
2849void 3572void
2850ev_child_stop (EV_P_ ev_child *w) 3573ev_child_stop (EV_P_ ev_child *w) EV_THROW
2851{ 3574{
2852 clear_pending (EV_A_ (W)w); 3575 clear_pending (EV_A_ (W)w);
2853 if (expect_false (!ev_is_active (w))) 3576 if (expect_false (!ev_is_active (w)))
2854 return; 3577 return;
2855 3578
2856 EV_FREQUENT_CHECK; 3579 EV_FREQUENT_CHECK;
2857 3580
2858 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3581 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2859 ev_stop (EV_A_ (W)w); 3582 ev_stop (EV_A_ (W)w);
2860 3583
2861 EV_FREQUENT_CHECK; 3584 EV_FREQUENT_CHECK;
2862} 3585}
3586
3587#endif
2863 3588
2864#if EV_STAT_ENABLE 3589#if EV_STAT_ENABLE
2865 3590
2866# ifdef _WIN32 3591# ifdef _WIN32
2867# undef lstat 3592# undef lstat
… …
2928 if (!pend || pend == path) 3653 if (!pend || pend == path)
2929 break; 3654 break;
2930 3655
2931 *pend = 0; 3656 *pend = 0;
2932 w->wd = inotify_add_watch (fs_fd, path, mask); 3657 w->wd = inotify_add_watch (fs_fd, path, mask);
2933 } 3658 }
2934 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3659 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2935 } 3660 }
2936 } 3661 }
2937 3662
2938 if (w->wd >= 0) 3663 if (w->wd >= 0)
2939 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3664 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2940 3665
2941 /* now re-arm timer, if required */ 3666 /* now re-arm timer, if required */
2942 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3667 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2943 ev_timer_again (EV_A_ &w->timer); 3668 ev_timer_again (EV_A_ &w->timer);
2944 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3669 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2952 3677
2953 if (wd < 0) 3678 if (wd < 0)
2954 return; 3679 return;
2955 3680
2956 w->wd = -2; 3681 w->wd = -2;
2957 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3682 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2958 wlist_del (&fs_hash [slot].head, (WL)w); 3683 wlist_del (&fs_hash [slot].head, (WL)w);
2959 3684
2960 /* remove this watcher, if others are watching it, they will rearm */ 3685 /* remove this watcher, if others are watching it, they will rearm */
2961 inotify_rm_watch (fs_fd, wd); 3686 inotify_rm_watch (fs_fd, wd);
2962} 3687}
… …
2964static void noinline 3689static void noinline
2965infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3690infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2966{ 3691{
2967 if (slot < 0) 3692 if (slot < 0)
2968 /* overflow, need to check for all hash slots */ 3693 /* overflow, need to check for all hash slots */
2969 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3694 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2970 infy_wd (EV_A_ slot, wd, ev); 3695 infy_wd (EV_A_ slot, wd, ev);
2971 else 3696 else
2972 { 3697 {
2973 WL w_; 3698 WL w_;
2974 3699
2975 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3700 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2976 { 3701 {
2977 ev_stat *w = (ev_stat *)w_; 3702 ev_stat *w = (ev_stat *)w_;
2978 w_ = w_->next; /* lets us remove this watcher and all before it */ 3703 w_ = w_->next; /* lets us remove this watcher and all before it */
2979 3704
2980 if (w->wd == wd || wd == -1) 3705 if (w->wd == wd || wd == -1)
2981 { 3706 {
2982 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3707 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2983 { 3708 {
2984 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3709 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2985 w->wd = -1; 3710 w->wd = -1;
2986 infy_add (EV_A_ w); /* re-add, no matter what */ 3711 infy_add (EV_A_ w); /* re-add, no matter what */
2987 } 3712 }
2988 3713
2989 stat_timer_cb (EV_A_ &w->timer, 0); 3714 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3005 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3730 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3006 ofs += sizeof (struct inotify_event) + ev->len; 3731 ofs += sizeof (struct inotify_event) + ev->len;
3007 } 3732 }
3008} 3733}
3009 3734
3010inline_size unsigned int
3011ev_linux_version (void)
3012{
3013 struct utsname buf;
3014 unsigned int v;
3015 int i;
3016 char *p = buf.release;
3017
3018 if (uname (&buf))
3019 return 0;
3020
3021 for (i = 3+1; --i; )
3022 {
3023 unsigned int c = 0;
3024
3025 for (;;)
3026 {
3027 if (*p >= '0' && *p <= '9')
3028 c = c * 10 + *p++ - '0';
3029 else
3030 {
3031 p += *p == '.';
3032 break;
3033 }
3034 }
3035
3036 v = (v << 8) | c;
3037 }
3038
3039 return v;
3040}
3041
3042inline_size void 3735inline_size void ecb_cold
3043ev_check_2625 (EV_P) 3736ev_check_2625 (EV_P)
3044{ 3737{
3045 /* kernels < 2.6.25 are borked 3738 /* kernels < 2.6.25 are borked
3046 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3739 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3047 */ 3740 */
… …
3052} 3745}
3053 3746
3054inline_size int 3747inline_size int
3055infy_newfd (void) 3748infy_newfd (void)
3056{ 3749{
3057#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3750#if defined IN_CLOEXEC && defined IN_NONBLOCK
3058 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3751 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3059 if (fd >= 0) 3752 if (fd >= 0)
3060 return fd; 3753 return fd;
3061#endif 3754#endif
3062 return inotify_init (); 3755 return inotify_init ();
… …
3103 ev_io_set (&fs_w, fs_fd, EV_READ); 3796 ev_io_set (&fs_w, fs_fd, EV_READ);
3104 ev_io_start (EV_A_ &fs_w); 3797 ev_io_start (EV_A_ &fs_w);
3105 ev_unref (EV_A); 3798 ev_unref (EV_A);
3106 } 3799 }
3107 3800
3108 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3801 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3109 { 3802 {
3110 WL w_ = fs_hash [slot].head; 3803 WL w_ = fs_hash [slot].head;
3111 fs_hash [slot].head = 0; 3804 fs_hash [slot].head = 0;
3112 3805
3113 while (w_) 3806 while (w_)
… …
3137#else 3830#else
3138# define EV_LSTAT(p,b) lstat (p, b) 3831# define EV_LSTAT(p,b) lstat (p, b)
3139#endif 3832#endif
3140 3833
3141void 3834void
3142ev_stat_stat (EV_P_ ev_stat *w) 3835ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3143{ 3836{
3144 if (lstat (w->path, &w->attr) < 0) 3837 if (lstat (w->path, &w->attr) < 0)
3145 w->attr.st_nlink = 0; 3838 w->attr.st_nlink = 0;
3146 else if (!w->attr.st_nlink) 3839 else if (!w->attr.st_nlink)
3147 w->attr.st_nlink = 1; 3840 w->attr.st_nlink = 1;
… …
3186 ev_feed_event (EV_A_ w, EV_STAT); 3879 ev_feed_event (EV_A_ w, EV_STAT);
3187 } 3880 }
3188} 3881}
3189 3882
3190void 3883void
3191ev_stat_start (EV_P_ ev_stat *w) 3884ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3192{ 3885{
3193 if (expect_false (ev_is_active (w))) 3886 if (expect_false (ev_is_active (w)))
3194 return; 3887 return;
3195 3888
3196 ev_stat_stat (EV_A_ w); 3889 ev_stat_stat (EV_A_ w);
… …
3217 3910
3218 EV_FREQUENT_CHECK; 3911 EV_FREQUENT_CHECK;
3219} 3912}
3220 3913
3221void 3914void
3222ev_stat_stop (EV_P_ ev_stat *w) 3915ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3223{ 3916{
3224 clear_pending (EV_A_ (W)w); 3917 clear_pending (EV_A_ (W)w);
3225 if (expect_false (!ev_is_active (w))) 3918 if (expect_false (!ev_is_active (w)))
3226 return; 3919 return;
3227 3920
… …
3243} 3936}
3244#endif 3937#endif
3245 3938
3246#if EV_IDLE_ENABLE 3939#if EV_IDLE_ENABLE
3247void 3940void
3248ev_idle_start (EV_P_ ev_idle *w) 3941ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3249{ 3942{
3250 if (expect_false (ev_is_active (w))) 3943 if (expect_false (ev_is_active (w)))
3251 return; 3944 return;
3252 3945
3253 pri_adjust (EV_A_ (W)w); 3946 pri_adjust (EV_A_ (W)w);
… …
3266 3959
3267 EV_FREQUENT_CHECK; 3960 EV_FREQUENT_CHECK;
3268} 3961}
3269 3962
3270void 3963void
3271ev_idle_stop (EV_P_ ev_idle *w) 3964ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3272{ 3965{
3273 clear_pending (EV_A_ (W)w); 3966 clear_pending (EV_A_ (W)w);
3274 if (expect_false (!ev_is_active (w))) 3967 if (expect_false (!ev_is_active (w)))
3275 return; 3968 return;
3276 3969
… …
3288 3981
3289 EV_FREQUENT_CHECK; 3982 EV_FREQUENT_CHECK;
3290} 3983}
3291#endif 3984#endif
3292 3985
3986#if EV_PREPARE_ENABLE
3293void 3987void
3294ev_prepare_start (EV_P_ ev_prepare *w) 3988ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3295{ 3989{
3296 if (expect_false (ev_is_active (w))) 3990 if (expect_false (ev_is_active (w)))
3297 return; 3991 return;
3298 3992
3299 EV_FREQUENT_CHECK; 3993 EV_FREQUENT_CHECK;
… …
3304 3998
3305 EV_FREQUENT_CHECK; 3999 EV_FREQUENT_CHECK;
3306} 4000}
3307 4001
3308void 4002void
3309ev_prepare_stop (EV_P_ ev_prepare *w) 4003ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3310{ 4004{
3311 clear_pending (EV_A_ (W)w); 4005 clear_pending (EV_A_ (W)w);
3312 if (expect_false (!ev_is_active (w))) 4006 if (expect_false (!ev_is_active (w)))
3313 return; 4007 return;
3314 4008
… …
3323 4017
3324 ev_stop (EV_A_ (W)w); 4018 ev_stop (EV_A_ (W)w);
3325 4019
3326 EV_FREQUENT_CHECK; 4020 EV_FREQUENT_CHECK;
3327} 4021}
4022#endif
3328 4023
4024#if EV_CHECK_ENABLE
3329void 4025void
3330ev_check_start (EV_P_ ev_check *w) 4026ev_check_start (EV_P_ ev_check *w) EV_THROW
3331{ 4027{
3332 if (expect_false (ev_is_active (w))) 4028 if (expect_false (ev_is_active (w)))
3333 return; 4029 return;
3334 4030
3335 EV_FREQUENT_CHECK; 4031 EV_FREQUENT_CHECK;
… …
3340 4036
3341 EV_FREQUENT_CHECK; 4037 EV_FREQUENT_CHECK;
3342} 4038}
3343 4039
3344void 4040void
3345ev_check_stop (EV_P_ ev_check *w) 4041ev_check_stop (EV_P_ ev_check *w) EV_THROW
3346{ 4042{
3347 clear_pending (EV_A_ (W)w); 4043 clear_pending (EV_A_ (W)w);
3348 if (expect_false (!ev_is_active (w))) 4044 if (expect_false (!ev_is_active (w)))
3349 return; 4045 return;
3350 4046
… …
3359 4055
3360 ev_stop (EV_A_ (W)w); 4056 ev_stop (EV_A_ (W)w);
3361 4057
3362 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
3363} 4059}
4060#endif
3364 4061
3365#if EV_EMBED_ENABLE 4062#if EV_EMBED_ENABLE
3366void noinline 4063void noinline
3367ev_embed_sweep (EV_P_ ev_embed *w) 4064ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3368{ 4065{
3369 ev_loop (w->other, EVLOOP_NONBLOCK); 4066 ev_run (w->other, EVRUN_NOWAIT);
3370} 4067}
3371 4068
3372static void 4069static void
3373embed_io_cb (EV_P_ ev_io *io, int revents) 4070embed_io_cb (EV_P_ ev_io *io, int revents)
3374{ 4071{
3375 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4072 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3376 4073
3377 if (ev_cb (w)) 4074 if (ev_cb (w))
3378 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4075 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3379 else 4076 else
3380 ev_loop (w->other, EVLOOP_NONBLOCK); 4077 ev_run (w->other, EVRUN_NOWAIT);
3381} 4078}
3382 4079
3383static void 4080static void
3384embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4081embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3385{ 4082{
… …
3389 EV_P = w->other; 4086 EV_P = w->other;
3390 4087
3391 while (fdchangecnt) 4088 while (fdchangecnt)
3392 { 4089 {
3393 fd_reify (EV_A); 4090 fd_reify (EV_A);
3394 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4091 ev_run (EV_A_ EVRUN_NOWAIT);
3395 } 4092 }
3396 } 4093 }
3397} 4094}
3398 4095
3399static void 4096static void
… …
3405 4102
3406 { 4103 {
3407 EV_P = w->other; 4104 EV_P = w->other;
3408 4105
3409 ev_loop_fork (EV_A); 4106 ev_loop_fork (EV_A);
3410 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4107 ev_run (EV_A_ EVRUN_NOWAIT);
3411 } 4108 }
3412 4109
3413 ev_embed_start (EV_A_ w); 4110 ev_embed_start (EV_A_ w);
3414} 4111}
3415 4112
… …
3420 ev_idle_stop (EV_A_ idle); 4117 ev_idle_stop (EV_A_ idle);
3421} 4118}
3422#endif 4119#endif
3423 4120
3424void 4121void
3425ev_embed_start (EV_P_ ev_embed *w) 4122ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3426{ 4123{
3427 if (expect_false (ev_is_active (w))) 4124 if (expect_false (ev_is_active (w)))
3428 return; 4125 return;
3429 4126
3430 { 4127 {
… …
3451 4148
3452 EV_FREQUENT_CHECK; 4149 EV_FREQUENT_CHECK;
3453} 4150}
3454 4151
3455void 4152void
3456ev_embed_stop (EV_P_ ev_embed *w) 4153ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3457{ 4154{
3458 clear_pending (EV_A_ (W)w); 4155 clear_pending (EV_A_ (W)w);
3459 if (expect_false (!ev_is_active (w))) 4156 if (expect_false (!ev_is_active (w)))
3460 return; 4157 return;
3461 4158
… …
3471} 4168}
3472#endif 4169#endif
3473 4170
3474#if EV_FORK_ENABLE 4171#if EV_FORK_ENABLE
3475void 4172void
3476ev_fork_start (EV_P_ ev_fork *w) 4173ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3477{ 4174{
3478 if (expect_false (ev_is_active (w))) 4175 if (expect_false (ev_is_active (w)))
3479 return; 4176 return;
3480 4177
3481 EV_FREQUENT_CHECK; 4178 EV_FREQUENT_CHECK;
… …
3486 4183
3487 EV_FREQUENT_CHECK; 4184 EV_FREQUENT_CHECK;
3488} 4185}
3489 4186
3490void 4187void
3491ev_fork_stop (EV_P_ ev_fork *w) 4188ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3492{ 4189{
3493 clear_pending (EV_A_ (W)w); 4190 clear_pending (EV_A_ (W)w);
3494 if (expect_false (!ev_is_active (w))) 4191 if (expect_false (!ev_is_active (w)))
3495 return; 4192 return;
3496 4193
… …
3507 4204
3508 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
3509} 4206}
3510#endif 4207#endif
3511 4208
4209#if EV_CLEANUP_ENABLE
4210void
4211ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4212{
4213 if (expect_false (ev_is_active (w)))
4214 return;
4215
4216 EV_FREQUENT_CHECK;
4217
4218 ev_start (EV_A_ (W)w, ++cleanupcnt);
4219 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4220 cleanups [cleanupcnt - 1] = w;
4221
4222 /* cleanup watchers should never keep a refcount on the loop */
4223 ev_unref (EV_A);
4224 EV_FREQUENT_CHECK;
4225}
4226
4227void
4228ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4229{
4230 clear_pending (EV_A_ (W)w);
4231 if (expect_false (!ev_is_active (w)))
4232 return;
4233
4234 EV_FREQUENT_CHECK;
4235 ev_ref (EV_A);
4236
4237 {
4238 int active = ev_active (w);
4239
4240 cleanups [active - 1] = cleanups [--cleanupcnt];
4241 ev_active (cleanups [active - 1]) = active;
4242 }
4243
4244 ev_stop (EV_A_ (W)w);
4245
4246 EV_FREQUENT_CHECK;
4247}
4248#endif
4249
3512#if EV_ASYNC_ENABLE 4250#if EV_ASYNC_ENABLE
3513void 4251void
3514ev_async_start (EV_P_ ev_async *w) 4252ev_async_start (EV_P_ ev_async *w) EV_THROW
3515{ 4253{
3516 if (expect_false (ev_is_active (w))) 4254 if (expect_false (ev_is_active (w)))
3517 return; 4255 return;
4256
4257 w->sent = 0;
3518 4258
3519 evpipe_init (EV_A); 4259 evpipe_init (EV_A);
3520 4260
3521 EV_FREQUENT_CHECK; 4261 EV_FREQUENT_CHECK;
3522 4262
… …
3526 4266
3527 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3528} 4268}
3529 4269
3530void 4270void
3531ev_async_stop (EV_P_ ev_async *w) 4271ev_async_stop (EV_P_ ev_async *w) EV_THROW
3532{ 4272{
3533 clear_pending (EV_A_ (W)w); 4273 clear_pending (EV_A_ (W)w);
3534 if (expect_false (!ev_is_active (w))) 4274 if (expect_false (!ev_is_active (w)))
3535 return; 4275 return;
3536 4276
… …
3547 4287
3548 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3549} 4289}
3550 4290
3551void 4291void
3552ev_async_send (EV_P_ ev_async *w) 4292ev_async_send (EV_P_ ev_async *w) EV_THROW
3553{ 4293{
3554 w->sent = 1; 4294 w->sent = 1;
3555 evpipe_write (EV_A_ &async_pending); 4295 evpipe_write (EV_A_ &async_pending);
3556} 4296}
3557#endif 4297#endif
… …
3594 4334
3595 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4335 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3596} 4336}
3597 4337
3598void 4338void
3599ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4339ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3600{ 4340{
3601 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4341 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3602 4342
3603 if (expect_false (!once)) 4343 if (expect_false (!once))
3604 { 4344 {
3605 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4345 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3606 return; 4346 return;
3607 } 4347 }
3608 4348
3609 once->cb = cb; 4349 once->cb = cb;
3610 once->arg = arg; 4350 once->arg = arg;
… …
3625} 4365}
3626 4366
3627/*****************************************************************************/ 4367/*****************************************************************************/
3628 4368
3629#if EV_WALK_ENABLE 4369#if EV_WALK_ENABLE
3630void 4370void ecb_cold
3631ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4371ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3632{ 4372{
3633 int i, j; 4373 int i, j;
3634 ev_watcher_list *wl, *wn; 4374 ev_watcher_list *wl, *wn;
3635 4375
3636 if (types & (EV_IO | EV_EMBED)) 4376 if (types & (EV_IO | EV_EMBED))
… …
3679 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4419 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3680#endif 4420#endif
3681 4421
3682#if EV_IDLE_ENABLE 4422#if EV_IDLE_ENABLE
3683 if (types & EV_IDLE) 4423 if (types & EV_IDLE)
3684 for (j = NUMPRI; i--; ) 4424 for (j = NUMPRI; j--; )
3685 for (i = idlecnt [j]; i--; ) 4425 for (i = idlecnt [j]; i--; )
3686 cb (EV_A_ EV_IDLE, idles [j][i]); 4426 cb (EV_A_ EV_IDLE, idles [j][i]);
3687#endif 4427#endif
3688 4428
3689#if EV_FORK_ENABLE 4429#if EV_FORK_ENABLE
… …
3697 if (types & EV_ASYNC) 4437 if (types & EV_ASYNC)
3698 for (i = asynccnt; i--; ) 4438 for (i = asynccnt; i--; )
3699 cb (EV_A_ EV_ASYNC, asyncs [i]); 4439 cb (EV_A_ EV_ASYNC, asyncs [i]);
3700#endif 4440#endif
3701 4441
4442#if EV_PREPARE_ENABLE
3702 if (types & EV_PREPARE) 4443 if (types & EV_PREPARE)
3703 for (i = preparecnt; i--; ) 4444 for (i = preparecnt; i--; )
3704#if EV_EMBED_ENABLE 4445# if EV_EMBED_ENABLE
3705 if (ev_cb (prepares [i]) != embed_prepare_cb) 4446 if (ev_cb (prepares [i]) != embed_prepare_cb)
3706#endif 4447# endif
3707 cb (EV_A_ EV_PREPARE, prepares [i]); 4448 cb (EV_A_ EV_PREPARE, prepares [i]);
4449#endif
3708 4450
4451#if EV_CHECK_ENABLE
3709 if (types & EV_CHECK) 4452 if (types & EV_CHECK)
3710 for (i = checkcnt; i--; ) 4453 for (i = checkcnt; i--; )
3711 cb (EV_A_ EV_CHECK, checks [i]); 4454 cb (EV_A_ EV_CHECK, checks [i]);
4455#endif
3712 4456
4457#if EV_SIGNAL_ENABLE
3713 if (types & EV_SIGNAL) 4458 if (types & EV_SIGNAL)
3714 for (i = 0; i < EV_NSIG - 1; ++i) 4459 for (i = 0; i < EV_NSIG - 1; ++i)
3715 for (wl = signals [i].head; wl; ) 4460 for (wl = signals [i].head; wl; )
3716 { 4461 {
3717 wn = wl->next; 4462 wn = wl->next;
3718 cb (EV_A_ EV_SIGNAL, wl); 4463 cb (EV_A_ EV_SIGNAL, wl);
3719 wl = wn; 4464 wl = wn;
3720 } 4465 }
4466#endif
3721 4467
4468#if EV_CHILD_ENABLE
3722 if (types & EV_CHILD) 4469 if (types & EV_CHILD)
3723 for (i = EV_PID_HASHSIZE; i--; ) 4470 for (i = (EV_PID_HASHSIZE); i--; )
3724 for (wl = childs [i]; wl; ) 4471 for (wl = childs [i]; wl; )
3725 { 4472 {
3726 wn = wl->next; 4473 wn = wl->next;
3727 cb (EV_A_ EV_CHILD, wl); 4474 cb (EV_A_ EV_CHILD, wl);
3728 wl = wn; 4475 wl = wn;
3729 } 4476 }
4477#endif
3730/* EV_STAT 0x00001000 /* stat data changed */ 4478/* EV_STAT 0x00001000 /* stat data changed */
3731/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4479/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3732} 4480}
3733#endif 4481#endif
3734 4482
3735#if EV_MULTIPLICITY 4483#if EV_MULTIPLICITY
3736 #include "ev_wrap.h" 4484 #include "ev_wrap.h"
3737#endif 4485#endif
3738 4486
3739#ifdef __cplusplus
3740}
3741#endif
3742

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