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Comparing libev/ev.c (file contents):
Revision 1.326 by root, Tue Jan 26 04:19:37 2010 UTC vs.
Revision 1.426 by root, Sun May 6 13:42:10 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
337# include <syscall.h> 364# include <sys/syscall.h>
338# ifdef SYS_clock_gettime 365# ifdef SYS_clock_gettime
339# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
340# undef EV_USE_MONOTONIC 367# undef EV_USE_MONOTONIC
341# define EV_USE_MONOTONIC 1 368# define EV_USE_MONOTONIC 1
342# else 369# else
… …
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 {
1128#if EV_AVOID_STDIO
1129 ev_printerr (msg);
1130 ev_printerr (": ");
1131 ev_printerr (strerror (errno));
1132 ev_printerr ("\n");
1133#else
547 perror (msg); 1134 perror (msg);
1135#endif
548 abort (); 1136 abort ();
549 } 1137 }
550} 1138}
551 1139
552static void * 1140static void *
553ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
554{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
555 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
556 * 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
557 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
558 */ 1149 */
559 1150
560 if (size) 1151 if (size)
561 return realloc (ptr, size); 1152 return realloc (ptr, size);
562 1153
563 free (ptr); 1154 free (ptr);
564 return 0; 1155 return 0;
1156#endif
565} 1157}
566 1158
567static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
568 1160
569void 1161void ecb_cold
570ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
571{ 1163{
572 alloc = cb; 1164 alloc = cb;
573} 1165}
574 1166
575inline_speed void * 1167inline_speed void *
… …
577{ 1169{
578 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
579 1171
580 if (!ptr && size) 1172 if (!ptr && size)
581 { 1173 {
1174#if EV_AVOID_STDIO
1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1176#else
582 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1178#endif
583 abort (); 1179 abort ();
584 } 1180 }
585 1181
586 return ptr; 1182 return ptr;
587} 1183}
… …
603 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 */
604 unsigned char unused; 1200 unsigned char unused;
605#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
606 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
607#endif 1203#endif
608#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
609 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
610#endif 1209#endif
611} ANFD; 1210} ANFD;
612 1211
613/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
614typedef struct 1213typedef struct
… …
656 #undef VAR 1255 #undef VAR
657 }; 1256 };
658 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
659 1258
660 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
661 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 */
662 1261
663#else 1262#else
664 1263
665 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 */
666 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
667 #include "ev_vars.h" 1266 #include "ev_vars.h"
668 #undef VAR 1267 #undef VAR
669 1268
670 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
671 1270
672#endif 1271#endif
673 1272
674#if EV_MINIMAL < 2 1273#if EV_FEATURE_API
675# 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)
676# 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)
677# define EV_INVOKE_PENDING invoke_cb (EV_A) 1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
678#else 1277#else
679# define EV_RELEASE_CB (void)0 1278# define EV_RELEASE_CB (void)0
680# define EV_ACQUIRE_CB (void)0 1279# define EV_ACQUIRE_CB (void)0
681# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
682#endif 1281#endif
683 1282
684#define EVUNLOOP_RECURSE 0x80 1283#define EVBREAK_RECURSE 0x80
685 1284
686/*****************************************************************************/ 1285/*****************************************************************************/
687 1286
688#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
689ev_tstamp 1288ev_tstamp
690ev_time (void) 1289ev_time (void) EV_THROW
691{ 1290{
692#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
693 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
694 { 1293 {
695 struct timespec ts; 1294 struct timespec ts;
… …
719 return ev_time (); 1318 return ev_time ();
720} 1319}
721 1320
722#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
723ev_tstamp 1322ev_tstamp
724ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
725{ 1324{
726 return ev_rt_now; 1325 return ev_rt_now;
727} 1326}
728#endif 1327#endif
729 1328
730void 1329void
731ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
732{ 1331{
733 if (delay > 0.) 1332 if (delay > 0.)
734 { 1333 {
735#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
736 struct timespec ts; 1335 struct timespec ts;
737 1336
738 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
739 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
740
741 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
742#elif defined(_WIN32) 1339#elif defined _WIN32
743 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
744#else 1341#else
745 struct timeval tv; 1342 struct timeval tv;
746 1343
747 tv.tv_sec = (time_t)delay;
748 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
749
750 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
751 /* something not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
752 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
753 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
754#endif 1349#endif
755 } 1350 }
756} 1351}
757 1352
758/*****************************************************************************/ 1353/*****************************************************************************/
759 1354
760#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 */
761 1356
762/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
763/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
764inline_size int 1359inline_size int
765array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
766{ 1361{
767 int ncur = cur + 1; 1362 int ncur = cur + 1;
768 1363
769 do 1364 do
770 ncur <<= 1; 1365 ncur <<= 1;
771 while (cnt > ncur); 1366 while (cnt > ncur);
772 1367
773 /* 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 */
774 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
775 { 1370 {
776 ncur *= elem; 1371 ncur *= elem;
777 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);
778 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
780 } 1375 }
781 1376
782 return ncur; 1377 return ncur;
783} 1378}
784 1379
785static noinline void * 1380static void * noinline ecb_cold
786array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
787{ 1382{
788 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
789 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
790} 1385}
… …
793 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
794 1389
795#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
796 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
797 { \ 1392 { \
798 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
799 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
800 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
801 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
802 } 1397 }
803 1398
… …
821pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
822{ 1417{
823} 1418}
824 1419
825void noinline 1420void noinline
826ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
827{ 1422{
828 W w_ = (W)w; 1423 W w_ = (W)w;
829 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
830 1425
831 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
835 w_->pending = ++pendingcnt [pri]; 1430 w_->pending = ++pendingcnt [pri];
836 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1431 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
837 pendings [pri][w_->pending - 1].w = w_; 1432 pendings [pri][w_->pending - 1].w = w_;
838 pendings [pri][w_->pending - 1].events = revents; 1433 pendings [pri][w_->pending - 1].events = revents;
839 } 1434 }
1435
1436 pendingpri = NUMPRI - 1;
840} 1437}
841 1438
842inline_speed void 1439inline_speed void
843feed_reverse (EV_P_ W w) 1440feed_reverse (EV_P_ W w)
844{ 1441{
… …
864} 1461}
865 1462
866/*****************************************************************************/ 1463/*****************************************************************************/
867 1464
868inline_speed void 1465inline_speed void
869fd_event_nc (EV_P_ int fd, int revents) 1466fd_event_nocheck (EV_P_ int fd, int revents)
870{ 1467{
871 ANFD *anfd = anfds + fd; 1468 ANFD *anfd = anfds + fd;
872 ev_io *w; 1469 ev_io *w;
873 1470
874 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1471 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
886fd_event (EV_P_ int fd, int revents) 1483fd_event (EV_P_ int fd, int revents)
887{ 1484{
888 ANFD *anfd = anfds + fd; 1485 ANFD *anfd = anfds + fd;
889 1486
890 if (expect_true (!anfd->reify)) 1487 if (expect_true (!anfd->reify))
891 fd_event_nc (EV_A_ fd, revents); 1488 fd_event_nocheck (EV_A_ fd, revents);
892} 1489}
893 1490
894void 1491void
895ev_feed_fd_event (EV_P_ int fd, int revents) 1492ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
896{ 1493{
897 if (fd >= 0 && fd < anfdmax) 1494 if (fd >= 0 && fd < anfdmax)
898 fd_event_nc (EV_A_ fd, revents); 1495 fd_event_nocheck (EV_A_ fd, revents);
899} 1496}
900 1497
901/* make sure the external fd watch events are in-sync */ 1498/* make sure the external fd watch events are in-sync */
902/* with the kernel/libev internal state */ 1499/* with the kernel/libev internal state */
903inline_size void 1500inline_size void
904fd_reify (EV_P) 1501fd_reify (EV_P)
905{ 1502{
906 int i; 1503 int i;
907 1504
1505#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1506 for (i = 0; i < fdchangecnt; ++i)
1507 {
1508 int fd = fdchanges [i];
1509 ANFD *anfd = anfds + fd;
1510
1511 if (anfd->reify & EV__IOFDSET && anfd->head)
1512 {
1513 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1514
1515 if (handle != anfd->handle)
1516 {
1517 unsigned long arg;
1518
1519 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1520
1521 /* handle changed, but fd didn't - we need to do it in two steps */
1522 backend_modify (EV_A_ fd, anfd->events, 0);
1523 anfd->events = 0;
1524 anfd->handle = handle;
1525 }
1526 }
1527 }
1528#endif
1529
908 for (i = 0; i < fdchangecnt; ++i) 1530 for (i = 0; i < fdchangecnt; ++i)
909 { 1531 {
910 int fd = fdchanges [i]; 1532 int fd = fdchanges [i];
911 ANFD *anfd = anfds + fd; 1533 ANFD *anfd = anfds + fd;
912 ev_io *w; 1534 ev_io *w;
913 1535
914 unsigned char events = 0; 1536 unsigned char o_events = anfd->events;
1537 unsigned char o_reify = anfd->reify;
915 1538
916 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1539 anfd->reify = 0;
917 events |= (unsigned char)w->events;
918 1540
919#if EV_SELECT_IS_WINSOCKET 1541 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
920 if (events)
921 { 1542 {
922 unsigned long arg; 1543 anfd->events = 0;
923 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1544
924 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1545 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1546 anfd->events |= (unsigned char)w->events;
1547
1548 if (o_events != anfd->events)
1549 o_reify = EV__IOFDSET; /* actually |= */
925 } 1550 }
926#endif
927 1551
928 { 1552 if (o_reify & EV__IOFDSET)
929 unsigned char o_events = anfd->events;
930 unsigned char o_reify = anfd->reify;
931
932 anfd->reify = 0;
933 anfd->events = events;
934
935 if (o_events != events || o_reify & EV__IOFDSET)
936 backend_modify (EV_A_ fd, o_events, events); 1553 backend_modify (EV_A_ fd, o_events, anfd->events);
937 }
938 } 1554 }
939 1555
940 fdchangecnt = 0; 1556 fdchangecnt = 0;
941} 1557}
942 1558
… …
954 fdchanges [fdchangecnt - 1] = fd; 1570 fdchanges [fdchangecnt - 1] = fd;
955 } 1571 }
956} 1572}
957 1573
958/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1574/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
959inline_speed void 1575inline_speed void ecb_cold
960fd_kill (EV_P_ int fd) 1576fd_kill (EV_P_ int fd)
961{ 1577{
962 ev_io *w; 1578 ev_io *w;
963 1579
964 while ((w = (ev_io *)anfds [fd].head)) 1580 while ((w = (ev_io *)anfds [fd].head))
… …
966 ev_io_stop (EV_A_ w); 1582 ev_io_stop (EV_A_ w);
967 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1583 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
968 } 1584 }
969} 1585}
970 1586
971/* check whether the given fd is atcually valid, for error recovery */ 1587/* check whether the given fd is actually valid, for error recovery */
972inline_size int 1588inline_size int ecb_cold
973fd_valid (int fd) 1589fd_valid (int fd)
974{ 1590{
975#ifdef _WIN32 1591#ifdef _WIN32
976 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1592 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
977#else 1593#else
978 return fcntl (fd, F_GETFD) != -1; 1594 return fcntl (fd, F_GETFD) != -1;
979#endif 1595#endif
980} 1596}
981 1597
982/* called on EBADF to verify fds */ 1598/* called on EBADF to verify fds */
983static void noinline 1599static void noinline ecb_cold
984fd_ebadf (EV_P) 1600fd_ebadf (EV_P)
985{ 1601{
986 int fd; 1602 int fd;
987 1603
988 for (fd = 0; fd < anfdmax; ++fd) 1604 for (fd = 0; fd < anfdmax; ++fd)
… …
990 if (!fd_valid (fd) && errno == EBADF) 1606 if (!fd_valid (fd) && errno == EBADF)
991 fd_kill (EV_A_ fd); 1607 fd_kill (EV_A_ fd);
992} 1608}
993 1609
994/* called on ENOMEM in select/poll to kill some fds and retry */ 1610/* called on ENOMEM in select/poll to kill some fds and retry */
995static void noinline 1611static void noinline ecb_cold
996fd_enomem (EV_P) 1612fd_enomem (EV_P)
997{ 1613{
998 int fd; 1614 int fd;
999 1615
1000 for (fd = anfdmax; fd--; ) 1616 for (fd = anfdmax; fd--; )
… …
1018 anfds [fd].emask = 0; 1634 anfds [fd].emask = 0;
1019 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1635 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1020 } 1636 }
1021} 1637}
1022 1638
1639/* used to prepare libev internal fd's */
1640/* this is not fork-safe */
1641inline_speed void
1642fd_intern (int fd)
1643{
1644#ifdef _WIN32
1645 unsigned long arg = 1;
1646 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1647#else
1648 fcntl (fd, F_SETFD, FD_CLOEXEC);
1649 fcntl (fd, F_SETFL, O_NONBLOCK);
1650#endif
1651}
1652
1023/*****************************************************************************/ 1653/*****************************************************************************/
1024 1654
1025/* 1655/*
1026 * the heap functions want a real array index. array index 0 uis guaranteed to not 1656 * the heap functions want a real array index. array index 0 is guaranteed to not
1027 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1657 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1028 * the branching factor of the d-tree. 1658 * the branching factor of the d-tree.
1029 */ 1659 */
1030 1660
1031/* 1661/*
… …
1179 1809
1180static ANSIG signals [EV_NSIG - 1]; 1810static ANSIG signals [EV_NSIG - 1];
1181 1811
1182/*****************************************************************************/ 1812/*****************************************************************************/
1183 1813
1184/* used to prepare libev internal fd's */ 1814#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1185/* this is not fork-safe */
1186inline_speed void
1187fd_intern (int fd)
1188{
1189#ifdef _WIN32
1190 unsigned long arg = 1;
1191 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1192#else
1193 fcntl (fd, F_SETFD, FD_CLOEXEC);
1194 fcntl (fd, F_SETFL, O_NONBLOCK);
1195#endif
1196}
1197 1815
1198static void noinline 1816static void noinline ecb_cold
1199evpipe_init (EV_P) 1817evpipe_init (EV_P)
1200{ 1818{
1201 if (!ev_is_active (&pipe_w)) 1819 if (!ev_is_active (&pipe_w))
1202 { 1820 {
1203#if EV_USE_EVENTFD 1821# if EV_USE_EVENTFD
1204 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1822 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1205 if (evfd < 0 && errno == EINVAL) 1823 if (evfd < 0 && errno == EINVAL)
1206 evfd = eventfd (0, 0); 1824 evfd = eventfd (0, 0);
1207 1825
1208 if (evfd >= 0) 1826 if (evfd >= 0)
… …
1210 evpipe [0] = -1; 1828 evpipe [0] = -1;
1211 fd_intern (evfd); /* doing it twice doesn't hurt */ 1829 fd_intern (evfd); /* doing it twice doesn't hurt */
1212 ev_io_set (&pipe_w, evfd, EV_READ); 1830 ev_io_set (&pipe_w, evfd, EV_READ);
1213 } 1831 }
1214 else 1832 else
1215#endif 1833# endif
1216 { 1834 {
1217 while (pipe (evpipe)) 1835 while (pipe (evpipe))
1218 ev_syserr ("(libev) error creating signal/async pipe"); 1836 ev_syserr ("(libev) error creating signal/async pipe");
1219 1837
1220 fd_intern (evpipe [0]); 1838 fd_intern (evpipe [0]);
… …
1225 ev_io_start (EV_A_ &pipe_w); 1843 ev_io_start (EV_A_ &pipe_w);
1226 ev_unref (EV_A); /* watcher should not keep loop alive */ 1844 ev_unref (EV_A); /* watcher should not keep loop alive */
1227 } 1845 }
1228} 1846}
1229 1847
1230inline_size void 1848inline_speed void
1231evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1849evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1232{ 1850{
1233 if (!*flag) 1851 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1852
1853 if (expect_true (*flag))
1854 return;
1855
1856 *flag = 1;
1857
1858 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1859
1860 pipe_write_skipped = 1;
1861
1862 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1863
1864 if (pipe_write_wanted)
1234 { 1865 {
1866 int old_errno;
1867
1868 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1869
1235 int old_errno = errno; /* save errno because write might clobber it */ 1870 old_errno = errno; /* save errno because write will clobber it */
1236
1237 *flag = 1;
1238 1871
1239#if EV_USE_EVENTFD 1872#if EV_USE_EVENTFD
1240 if (evfd >= 0) 1873 if (evfd >= 0)
1241 { 1874 {
1242 uint64_t counter = 1; 1875 uint64_t counter = 1;
1243 write (evfd, &counter, sizeof (uint64_t)); 1876 write (evfd, &counter, sizeof (uint64_t));
1244 } 1877 }
1245 else 1878 else
1246#endif 1879#endif
1880 {
1881 /* win32 people keep sending patches that change this write() to send() */
1882 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1883 /* so when you think this write should be a send instead, please find out */
1884 /* where your send() is from - it's definitely not the microsoft send, and */
1885 /* tell me. thank you. */
1886 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1887 /* check the ev documentation on how to use this flag */
1247 write (evpipe [1], &old_errno, 1); 1888 write (evpipe [1], &(evpipe [1]), 1);
1889 }
1248 1890
1249 errno = old_errno; 1891 errno = old_errno;
1250 } 1892 }
1251} 1893}
1252 1894
… …
1255static void 1897static void
1256pipecb (EV_P_ ev_io *iow, int revents) 1898pipecb (EV_P_ ev_io *iow, int revents)
1257{ 1899{
1258 int i; 1900 int i;
1259 1901
1902 if (revents & EV_READ)
1903 {
1260#if EV_USE_EVENTFD 1904#if EV_USE_EVENTFD
1261 if (evfd >= 0) 1905 if (evfd >= 0)
1262 { 1906 {
1263 uint64_t counter; 1907 uint64_t counter;
1264 read (evfd, &counter, sizeof (uint64_t)); 1908 read (evfd, &counter, sizeof (uint64_t));
1265 } 1909 }
1266 else 1910 else
1267#endif 1911#endif
1268 { 1912 {
1269 char dummy; 1913 char dummy;
1914 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1270 read (evpipe [0], &dummy, 1); 1915 read (evpipe [0], &dummy, 1);
1916 }
1271 } 1917 }
1272 1918
1919 pipe_write_skipped = 0;
1920
1921 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1922
1923#if EV_SIGNAL_ENABLE
1273 if (sig_pending) 1924 if (sig_pending)
1274 { 1925 {
1275 sig_pending = 0; 1926 sig_pending = 0;
1927
1928 ECB_MEMORY_FENCE_RELEASE;
1276 1929
1277 for (i = EV_NSIG - 1; i--; ) 1930 for (i = EV_NSIG - 1; i--; )
1278 if (expect_false (signals [i].pending)) 1931 if (expect_false (signals [i].pending))
1279 ev_feed_signal_event (EV_A_ i + 1); 1932 ev_feed_signal_event (EV_A_ i + 1);
1280 } 1933 }
1934#endif
1281 1935
1282#if EV_ASYNC_ENABLE 1936#if EV_ASYNC_ENABLE
1283 if (async_pending) 1937 if (async_pending)
1284 { 1938 {
1285 async_pending = 0; 1939 async_pending = 0;
1940
1941 ECB_MEMORY_FENCE_RELEASE;
1286 1942
1287 for (i = asynccnt; i--; ) 1943 for (i = asynccnt; i--; )
1288 if (asyncs [i]->sent) 1944 if (asyncs [i]->sent)
1289 { 1945 {
1290 asyncs [i]->sent = 0; 1946 asyncs [i]->sent = 0;
… …
1294#endif 1950#endif
1295} 1951}
1296 1952
1297/*****************************************************************************/ 1953/*****************************************************************************/
1298 1954
1955void
1956ev_feed_signal (int signum) EV_THROW
1957{
1958#if EV_MULTIPLICITY
1959 EV_P = signals [signum - 1].loop;
1960
1961 if (!EV_A)
1962 return;
1963#endif
1964
1965 if (!ev_active (&pipe_w))
1966 return;
1967
1968 signals [signum - 1].pending = 1;
1969 evpipe_write (EV_A_ &sig_pending);
1970}
1971
1299static void 1972static void
1300ev_sighandler (int signum) 1973ev_sighandler (int signum)
1301{ 1974{
1302#if EV_MULTIPLICITY
1303 EV_P = signals [signum - 1].loop;
1304#endif
1305
1306#ifdef _WIN32 1975#ifdef _WIN32
1307 signal (signum, ev_sighandler); 1976 signal (signum, ev_sighandler);
1308#endif 1977#endif
1309 1978
1310 signals [signum - 1].pending = 1; 1979 ev_feed_signal (signum);
1311 evpipe_write (EV_A_ &sig_pending);
1312} 1980}
1313 1981
1314void noinline 1982void noinline
1315ev_feed_signal_event (EV_P_ int signum) 1983ev_feed_signal_event (EV_P_ int signum) EV_THROW
1316{ 1984{
1317 WL w; 1985 WL w;
1318 1986
1319 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1987 if (expect_false (signum <= 0 || signum > EV_NSIG))
1320 return; 1988 return;
… …
1353 break; 2021 break;
1354 } 2022 }
1355} 2023}
1356#endif 2024#endif
1357 2025
2026#endif
2027
1358/*****************************************************************************/ 2028/*****************************************************************************/
1359 2029
2030#if EV_CHILD_ENABLE
1360static WL childs [EV_PID_HASHSIZE]; 2031static WL childs [EV_PID_HASHSIZE];
1361
1362#ifndef _WIN32
1363 2032
1364static ev_signal childev; 2033static ev_signal childev;
1365 2034
1366#ifndef WIFCONTINUED 2035#ifndef WIFCONTINUED
1367# define WIFCONTINUED(status) 0 2036# define WIFCONTINUED(status) 0
… …
1372child_reap (EV_P_ int chain, int pid, int status) 2041child_reap (EV_P_ int chain, int pid, int status)
1373{ 2042{
1374 ev_child *w; 2043 ev_child *w;
1375 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2044 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1376 2045
1377 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2046 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1378 { 2047 {
1379 if ((w->pid == pid || !w->pid) 2048 if ((w->pid == pid || !w->pid)
1380 && (!traced || (w->flags & 1))) 2049 && (!traced || (w->flags & 1)))
1381 { 2050 {
1382 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2051 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1407 /* make sure we are called again until all children have been reaped */ 2076 /* make sure we are called again until all children have been reaped */
1408 /* we need to do it this way so that the callback gets called before we continue */ 2077 /* we need to do it this way so that the callback gets called before we continue */
1409 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2078 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1410 2079
1411 child_reap (EV_A_ pid, pid, status); 2080 child_reap (EV_A_ pid, pid, status);
1412 if (EV_PID_HASHSIZE > 1) 2081 if ((EV_PID_HASHSIZE) > 1)
1413 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2082 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1414} 2083}
1415 2084
1416#endif 2085#endif
1417 2086
1418/*****************************************************************************/ 2087/*****************************************************************************/
1419 2088
2089#if EV_USE_IOCP
2090# include "ev_iocp.c"
2091#endif
1420#if EV_USE_PORT 2092#if EV_USE_PORT
1421# include "ev_port.c" 2093# include "ev_port.c"
1422#endif 2094#endif
1423#if EV_USE_KQUEUE 2095#if EV_USE_KQUEUE
1424# include "ev_kqueue.c" 2096# include "ev_kqueue.c"
… …
1431#endif 2103#endif
1432#if EV_USE_SELECT 2104#if EV_USE_SELECT
1433# include "ev_select.c" 2105# include "ev_select.c"
1434#endif 2106#endif
1435 2107
1436int 2108int ecb_cold
1437ev_version_major (void) 2109ev_version_major (void) EV_THROW
1438{ 2110{
1439 return EV_VERSION_MAJOR; 2111 return EV_VERSION_MAJOR;
1440} 2112}
1441 2113
1442int 2114int ecb_cold
1443ev_version_minor (void) 2115ev_version_minor (void) EV_THROW
1444{ 2116{
1445 return EV_VERSION_MINOR; 2117 return EV_VERSION_MINOR;
1446} 2118}
1447 2119
1448/* return true if we are running with elevated privileges and should ignore env variables */ 2120/* return true if we are running with elevated privileges and should ignore env variables */
1449int inline_size 2121int inline_size ecb_cold
1450enable_secure (void) 2122enable_secure (void)
1451{ 2123{
1452#ifdef _WIN32 2124#ifdef _WIN32
1453 return 0; 2125 return 0;
1454#else 2126#else
1455 return getuid () != geteuid () 2127 return getuid () != geteuid ()
1456 || getgid () != getegid (); 2128 || getgid () != getegid ();
1457#endif 2129#endif
1458} 2130}
1459 2131
1460unsigned int 2132unsigned int ecb_cold
1461ev_supported_backends (void) 2133ev_supported_backends (void) EV_THROW
1462{ 2134{
1463 unsigned int flags = 0; 2135 unsigned int flags = 0;
1464 2136
1465 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2137 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1466 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2138 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1469 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2141 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1470 2142
1471 return flags; 2143 return flags;
1472} 2144}
1473 2145
1474unsigned int 2146unsigned int ecb_cold
1475ev_recommended_backends (void) 2147ev_recommended_backends (void) EV_THROW
1476{ 2148{
1477 unsigned int flags = ev_supported_backends (); 2149 unsigned int flags = ev_supported_backends ();
1478 2150
1479#ifndef __NetBSD__ 2151#ifndef __NetBSD__
1480 /* kqueue is borked on everything but netbsd apparently */ 2152 /* kqueue is borked on everything but netbsd apparently */
… …
1484#ifdef __APPLE__ 2156#ifdef __APPLE__
1485 /* only select works correctly on that "unix-certified" platform */ 2157 /* only select works correctly on that "unix-certified" platform */
1486 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2158 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1487 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2159 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1488#endif 2160#endif
2161#ifdef __FreeBSD__
2162 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2163#endif
1489 2164
1490 return flags; 2165 return flags;
1491} 2166}
1492 2167
2168unsigned int ecb_cold
2169ev_embeddable_backends (void) EV_THROW
2170{
2171 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2172
2173 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2174 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2175 flags &= ~EVBACKEND_EPOLL;
2176
2177 return flags;
2178}
2179
1493unsigned int 2180unsigned int
1494ev_embeddable_backends (void) 2181ev_backend (EV_P) EV_THROW
1495{ 2182{
1496 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2183 return backend;
1497
1498 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1499 /* please fix it and tell me how to detect the fix */
1500 flags &= ~EVBACKEND_EPOLL;
1501
1502 return flags;
1503} 2184}
1504 2185
2186#if EV_FEATURE_API
1505unsigned int 2187unsigned int
1506ev_backend (EV_P) 2188ev_iteration (EV_P) EV_THROW
1507{ 2189{
1508 return backend; 2190 return loop_count;
1509} 2191}
1510 2192
1511#if EV_MINIMAL < 2
1512unsigned int 2193unsigned int
1513ev_loop_count (EV_P) 2194ev_depth (EV_P) EV_THROW
1514{
1515 return loop_count;
1516}
1517
1518unsigned int
1519ev_loop_depth (EV_P)
1520{ 2195{
1521 return loop_depth; 2196 return loop_depth;
1522} 2197}
1523 2198
1524void 2199void
1525ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2200ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1526{ 2201{
1527 io_blocktime = interval; 2202 io_blocktime = interval;
1528} 2203}
1529 2204
1530void 2205void
1531ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1532{ 2207{
1533 timeout_blocktime = interval; 2208 timeout_blocktime = interval;
1534} 2209}
1535 2210
1536void 2211void
1537ev_set_userdata (EV_P_ void *data) 2212ev_set_userdata (EV_P_ void *data) EV_THROW
1538{ 2213{
1539 userdata = data; 2214 userdata = data;
1540} 2215}
1541 2216
1542void * 2217void *
1543ev_userdata (EV_P) 2218ev_userdata (EV_P) EV_THROW
1544{ 2219{
1545 return userdata; 2220 return userdata;
1546} 2221}
1547 2222
2223void
1548void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2224ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1549{ 2225{
1550 invoke_cb = invoke_pending_cb; 2226 invoke_cb = invoke_pending_cb;
1551} 2227}
1552 2228
2229void
1553void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2230ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1554{ 2231{
1555 release_cb = release; 2232 release_cb = release;
1556 acquire_cb = acquire; 2233 acquire_cb = acquire;
1557} 2234}
1558#endif 2235#endif
1559 2236
1560/* initialise a loop structure, must be zero-initialised */ 2237/* initialise a loop structure, must be zero-initialised */
1561static void noinline 2238static void noinline ecb_cold
1562loop_init (EV_P_ unsigned int flags) 2239loop_init (EV_P_ unsigned int flags) EV_THROW
1563{ 2240{
1564 if (!backend) 2241 if (!backend)
1565 { 2242 {
2243 origflags = flags;
2244
1566#if EV_USE_REALTIME 2245#if EV_USE_REALTIME
1567 if (!have_realtime) 2246 if (!have_realtime)
1568 { 2247 {
1569 struct timespec ts; 2248 struct timespec ts;
1570 2249
… …
1592 if (!(flags & EVFLAG_NOENV) 2271 if (!(flags & EVFLAG_NOENV)
1593 && !enable_secure () 2272 && !enable_secure ()
1594 && getenv ("LIBEV_FLAGS")) 2273 && getenv ("LIBEV_FLAGS"))
1595 flags = atoi (getenv ("LIBEV_FLAGS")); 2274 flags = atoi (getenv ("LIBEV_FLAGS"));
1596 2275
1597 ev_rt_now = ev_time (); 2276 ev_rt_now = ev_time ();
1598 mn_now = get_clock (); 2277 mn_now = get_clock ();
1599 now_floor = mn_now; 2278 now_floor = mn_now;
1600 rtmn_diff = ev_rt_now - mn_now; 2279 rtmn_diff = ev_rt_now - mn_now;
1601#if EV_MINIMAL < 2 2280#if EV_FEATURE_API
1602 invoke_cb = ev_invoke_pending; 2281 invoke_cb = ev_invoke_pending;
1603#endif 2282#endif
1604 2283
1605 io_blocktime = 0.; 2284 io_blocktime = 0.;
1606 timeout_blocktime = 0.; 2285 timeout_blocktime = 0.;
1607 backend = 0; 2286 backend = 0;
1608 backend_fd = -1; 2287 backend_fd = -1;
1609 sig_pending = 0; 2288 sig_pending = 0;
1610#if EV_ASYNC_ENABLE 2289#if EV_ASYNC_ENABLE
1611 async_pending = 0; 2290 async_pending = 0;
1612#endif 2291#endif
2292 pipe_write_skipped = 0;
2293 pipe_write_wanted = 0;
1613#if EV_USE_INOTIFY 2294#if EV_USE_INOTIFY
1614 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2295 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1615#endif 2296#endif
1616#if EV_USE_SIGNALFD 2297#if EV_USE_SIGNALFD
1617 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2298 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1618#endif 2299#endif
1619 2300
1620 if (!(flags & 0x0000ffffU)) 2301 if (!(flags & EVBACKEND_MASK))
1621 flags |= ev_recommended_backends (); 2302 flags |= ev_recommended_backends ();
1622 2303
2304#if EV_USE_IOCP
2305 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2306#endif
1623#if EV_USE_PORT 2307#if EV_USE_PORT
1624 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2308 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1625#endif 2309#endif
1626#if EV_USE_KQUEUE 2310#if EV_USE_KQUEUE
1627 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2311 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1636 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1637#endif 2321#endif
1638 2322
1639 ev_prepare_init (&pending_w, pendingcb); 2323 ev_prepare_init (&pending_w, pendingcb);
1640 2324
2325#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1641 ev_init (&pipe_w, pipecb); 2326 ev_init (&pipe_w, pipecb);
1642 ev_set_priority (&pipe_w, EV_MAXPRI); 2327 ev_set_priority (&pipe_w, EV_MAXPRI);
2328#endif
1643 } 2329 }
1644} 2330}
1645 2331
1646/* free up a loop structure */ 2332/* free up a loop structure */
1647static void noinline 2333void ecb_cold
1648loop_destroy (EV_P) 2334ev_loop_destroy (EV_P)
1649{ 2335{
1650 int i; 2336 int i;
2337
2338#if EV_MULTIPLICITY
2339 /* mimic free (0) */
2340 if (!EV_A)
2341 return;
2342#endif
2343
2344#if EV_CLEANUP_ENABLE
2345 /* queue cleanup watchers (and execute them) */
2346 if (expect_false (cleanupcnt))
2347 {
2348 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2349 EV_INVOKE_PENDING;
2350 }
2351#endif
2352
2353#if EV_CHILD_ENABLE
2354 if (ev_is_active (&childev))
2355 {
2356 ev_ref (EV_A); /* child watcher */
2357 ev_signal_stop (EV_A_ &childev);
2358 }
2359#endif
1651 2360
1652 if (ev_is_active (&pipe_w)) 2361 if (ev_is_active (&pipe_w))
1653 { 2362 {
1654 /*ev_ref (EV_A);*/ 2363 /*ev_ref (EV_A);*/
1655 /*ev_io_stop (EV_A_ &pipe_w);*/ 2364 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1677#endif 2386#endif
1678 2387
1679 if (backend_fd >= 0) 2388 if (backend_fd >= 0)
1680 close (backend_fd); 2389 close (backend_fd);
1681 2390
2391#if EV_USE_IOCP
2392 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2393#endif
1682#if EV_USE_PORT 2394#if EV_USE_PORT
1683 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2395 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1684#endif 2396#endif
1685#if EV_USE_KQUEUE 2397#if EV_USE_KQUEUE
1686 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2398 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1713 array_free (periodic, EMPTY); 2425 array_free (periodic, EMPTY);
1714#endif 2426#endif
1715#if EV_FORK_ENABLE 2427#if EV_FORK_ENABLE
1716 array_free (fork, EMPTY); 2428 array_free (fork, EMPTY);
1717#endif 2429#endif
2430#if EV_CLEANUP_ENABLE
2431 array_free (cleanup, EMPTY);
2432#endif
1718 array_free (prepare, EMPTY); 2433 array_free (prepare, EMPTY);
1719 array_free (check, EMPTY); 2434 array_free (check, EMPTY);
1720#if EV_ASYNC_ENABLE 2435#if EV_ASYNC_ENABLE
1721 array_free (async, EMPTY); 2436 array_free (async, EMPTY);
1722#endif 2437#endif
1723 2438
1724 backend = 0; 2439 backend = 0;
2440
2441#if EV_MULTIPLICITY
2442 if (ev_is_default_loop (EV_A))
2443#endif
2444 ev_default_loop_ptr = 0;
2445#if EV_MULTIPLICITY
2446 else
2447 ev_free (EV_A);
2448#endif
1725} 2449}
1726 2450
1727#if EV_USE_INOTIFY 2451#if EV_USE_INOTIFY
1728inline_size void infy_fork (EV_P); 2452inline_size void infy_fork (EV_P);
1729#endif 2453#endif
… …
1744 infy_fork (EV_A); 2468 infy_fork (EV_A);
1745#endif 2469#endif
1746 2470
1747 if (ev_is_active (&pipe_w)) 2471 if (ev_is_active (&pipe_w))
1748 { 2472 {
1749 /* this "locks" the handlers against writing to the pipe */ 2473 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1750 /* while we modify the fd vars */
1751 sig_pending = 1;
1752#if EV_ASYNC_ENABLE
1753 async_pending = 1;
1754#endif
1755 2474
1756 ev_ref (EV_A); 2475 ev_ref (EV_A);
1757 ev_io_stop (EV_A_ &pipe_w); 2476 ev_io_stop (EV_A_ &pipe_w);
1758 2477
1759#if EV_USE_EVENTFD 2478#if EV_USE_EVENTFD
… …
1765 { 2484 {
1766 EV_WIN32_CLOSE_FD (evpipe [0]); 2485 EV_WIN32_CLOSE_FD (evpipe [0]);
1767 EV_WIN32_CLOSE_FD (evpipe [1]); 2486 EV_WIN32_CLOSE_FD (evpipe [1]);
1768 } 2487 }
1769 2488
2489#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1770 evpipe_init (EV_A); 2490 evpipe_init (EV_A);
1771 /* now iterate over everything, in case we missed something */ 2491 /* now iterate over everything, in case we missed something */
1772 pipecb (EV_A_ &pipe_w, EV_READ); 2492 pipecb (EV_A_ &pipe_w, EV_READ);
2493#endif
1773 } 2494 }
1774 2495
1775 postfork = 0; 2496 postfork = 0;
1776} 2497}
1777 2498
1778#if EV_MULTIPLICITY 2499#if EV_MULTIPLICITY
1779 2500
1780struct ev_loop * 2501struct ev_loop * ecb_cold
1781ev_loop_new (unsigned int flags) 2502ev_loop_new (unsigned int flags) EV_THROW
1782{ 2503{
1783 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2504 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1784 2505
1785 memset (EV_A, 0, sizeof (struct ev_loop)); 2506 memset (EV_A, 0, sizeof (struct ev_loop));
1786 loop_init (EV_A_ flags); 2507 loop_init (EV_A_ flags);
1787 2508
1788 if (ev_backend (EV_A)) 2509 if (ev_backend (EV_A))
1789 return EV_A; 2510 return EV_A;
1790 2511
2512 ev_free (EV_A);
1791 return 0; 2513 return 0;
1792} 2514}
1793 2515
1794void
1795ev_loop_destroy (EV_P)
1796{
1797 loop_destroy (EV_A);
1798 ev_free (loop);
1799}
1800
1801void
1802ev_loop_fork (EV_P)
1803{
1804 postfork = 1; /* must be in line with ev_default_fork */
1805}
1806#endif /* multiplicity */ 2516#endif /* multiplicity */
1807 2517
1808#if EV_VERIFY 2518#if EV_VERIFY
1809static void noinline 2519static void noinline ecb_cold
1810verify_watcher (EV_P_ W w) 2520verify_watcher (EV_P_ W w)
1811{ 2521{
1812 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2522 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1813 2523
1814 if (w->pending) 2524 if (w->pending)
1815 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2525 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1816} 2526}
1817 2527
1818static void noinline 2528static void noinline ecb_cold
1819verify_heap (EV_P_ ANHE *heap, int N) 2529verify_heap (EV_P_ ANHE *heap, int N)
1820{ 2530{
1821 int i; 2531 int i;
1822 2532
1823 for (i = HEAP0; i < N + HEAP0; ++i) 2533 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1828 2538
1829 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2539 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1830 } 2540 }
1831} 2541}
1832 2542
1833static void noinline 2543static void noinline ecb_cold
1834array_verify (EV_P_ W *ws, int cnt) 2544array_verify (EV_P_ W *ws, int cnt)
1835{ 2545{
1836 while (cnt--) 2546 while (cnt--)
1837 { 2547 {
1838 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2548 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1839 verify_watcher (EV_A_ ws [cnt]); 2549 verify_watcher (EV_A_ ws [cnt]);
1840 } 2550 }
1841} 2551}
1842#endif 2552#endif
1843 2553
1844#if EV_MINIMAL < 2 2554#if EV_FEATURE_API
1845void 2555void ecb_cold
1846ev_loop_verify (EV_P) 2556ev_verify (EV_P) EV_THROW
1847{ 2557{
1848#if EV_VERIFY 2558#if EV_VERIFY
1849 int i; 2559 int i, j;
1850 WL w; 2560 WL w, w2;
1851 2561
1852 assert (activecnt >= -1); 2562 assert (activecnt >= -1);
1853 2563
1854 assert (fdchangemax >= fdchangecnt); 2564 assert (fdchangemax >= fdchangecnt);
1855 for (i = 0; i < fdchangecnt; ++i) 2565 for (i = 0; i < fdchangecnt; ++i)
1856 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2566 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1857 2567
1858 assert (anfdmax >= 0); 2568 assert (anfdmax >= 0);
1859 for (i = 0; i < anfdmax; ++i) 2569 for (i = j = 0; i < anfdmax; ++i)
1860 for (w = anfds [i].head; w; w = w->next) 2570 for (w = w2 = anfds [i].head; w; w = w->next)
1861 { 2571 {
1862 verify_watcher (EV_A_ (W)w); 2572 verify_watcher (EV_A_ (W)w);
2573
2574 if (++j & 1)
2575 w2 = w2->next;
2576
2577 assert (("libev: io watcher list contains a loop", w != w2));
1863 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2578 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1864 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2579 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1865 } 2580 }
1866 2581
1867 assert (timermax >= timercnt); 2582 assert (timermax >= timercnt);
… …
1885#if EV_FORK_ENABLE 2600#if EV_FORK_ENABLE
1886 assert (forkmax >= forkcnt); 2601 assert (forkmax >= forkcnt);
1887 array_verify (EV_A_ (W *)forks, forkcnt); 2602 array_verify (EV_A_ (W *)forks, forkcnt);
1888#endif 2603#endif
1889 2604
2605#if EV_CLEANUP_ENABLE
2606 assert (cleanupmax >= cleanupcnt);
2607 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2608#endif
2609
1890#if EV_ASYNC_ENABLE 2610#if EV_ASYNC_ENABLE
1891 assert (asyncmax >= asynccnt); 2611 assert (asyncmax >= asynccnt);
1892 array_verify (EV_A_ (W *)asyncs, asynccnt); 2612 array_verify (EV_A_ (W *)asyncs, asynccnt);
1893#endif 2613#endif
1894 2614
2615#if EV_PREPARE_ENABLE
1895 assert (preparemax >= preparecnt); 2616 assert (preparemax >= preparecnt);
1896 array_verify (EV_A_ (W *)prepares, preparecnt); 2617 array_verify (EV_A_ (W *)prepares, preparecnt);
2618#endif
1897 2619
2620#if EV_CHECK_ENABLE
1898 assert (checkmax >= checkcnt); 2621 assert (checkmax >= checkcnt);
1899 array_verify (EV_A_ (W *)checks, checkcnt); 2622 array_verify (EV_A_ (W *)checks, checkcnt);
2623#endif
1900 2624
1901# if 0 2625# if 0
2626#if EV_CHILD_ENABLE
1902 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2627 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1903 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2628 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2629#endif
1904# endif 2630# endif
1905#endif 2631#endif
1906} 2632}
1907#endif 2633#endif
1908 2634
1909#if EV_MULTIPLICITY 2635#if EV_MULTIPLICITY
1910struct ev_loop * 2636struct ev_loop * ecb_cold
1911ev_default_loop_init (unsigned int flags)
1912#else 2637#else
1913int 2638int
2639#endif
1914ev_default_loop (unsigned int flags) 2640ev_default_loop (unsigned int flags) EV_THROW
1915#endif
1916{ 2641{
1917 if (!ev_default_loop_ptr) 2642 if (!ev_default_loop_ptr)
1918 { 2643 {
1919#if EV_MULTIPLICITY 2644#if EV_MULTIPLICITY
1920 EV_P = ev_default_loop_ptr = &default_loop_struct; 2645 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1924 2649
1925 loop_init (EV_A_ flags); 2650 loop_init (EV_A_ flags);
1926 2651
1927 if (ev_backend (EV_A)) 2652 if (ev_backend (EV_A))
1928 { 2653 {
1929#ifndef _WIN32 2654#if EV_CHILD_ENABLE
1930 ev_signal_init (&childev, childcb, SIGCHLD); 2655 ev_signal_init (&childev, childcb, SIGCHLD);
1931 ev_set_priority (&childev, EV_MAXPRI); 2656 ev_set_priority (&childev, EV_MAXPRI);
1932 ev_signal_start (EV_A_ &childev); 2657 ev_signal_start (EV_A_ &childev);
1933 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2658 ev_unref (EV_A); /* child watcher should not keep loop alive */
1934#endif 2659#endif
… …
1939 2664
1940 return ev_default_loop_ptr; 2665 return ev_default_loop_ptr;
1941} 2666}
1942 2667
1943void 2668void
1944ev_default_destroy (void) 2669ev_loop_fork (EV_P) EV_THROW
1945{ 2670{
1946#if EV_MULTIPLICITY
1947 EV_P = ev_default_loop_ptr;
1948#endif
1949
1950 ev_default_loop_ptr = 0;
1951
1952#ifndef _WIN32
1953 ev_ref (EV_A); /* child watcher */
1954 ev_signal_stop (EV_A_ &childev);
1955#endif
1956
1957 loop_destroy (EV_A);
1958}
1959
1960void
1961ev_default_fork (void)
1962{
1963#if EV_MULTIPLICITY
1964 EV_P = ev_default_loop_ptr;
1965#endif
1966
1967 postfork = 1; /* must be in line with ev_loop_fork */ 2671 postfork = 1; /* must be in line with ev_default_fork */
1968} 2672}
1969 2673
1970/*****************************************************************************/ 2674/*****************************************************************************/
1971 2675
1972void 2676void
… …
1974{ 2678{
1975 EV_CB_INVOKE ((W)w, revents); 2679 EV_CB_INVOKE ((W)w, revents);
1976} 2680}
1977 2681
1978unsigned int 2682unsigned int
1979ev_pending_count (EV_P) 2683ev_pending_count (EV_P) EV_THROW
1980{ 2684{
1981 int pri; 2685 int pri;
1982 unsigned int count = 0; 2686 unsigned int count = 0;
1983 2687
1984 for (pri = NUMPRI; pri--; ) 2688 for (pri = NUMPRI; pri--; )
… …
1988} 2692}
1989 2693
1990void noinline 2694void noinline
1991ev_invoke_pending (EV_P) 2695ev_invoke_pending (EV_P)
1992{ 2696{
1993 int pri; 2697 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1994
1995 for (pri = NUMPRI; pri--; )
1996 while (pendingcnt [pri]) 2698 while (pendingcnt [pendingpri])
1997 { 2699 {
1998 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2700 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1999
2000 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2001 /* ^ this is no longer true, as pending_w could be here */
2002 2701
2003 p->w->pending = 0; 2702 p->w->pending = 0;
2004 EV_CB_INVOKE (p->w, p->events); 2703 EV_CB_INVOKE (p->w, p->events);
2005 EV_FREQUENT_CHECK; 2704 EV_FREQUENT_CHECK;
2006 } 2705 }
… …
2063 EV_FREQUENT_CHECK; 2762 EV_FREQUENT_CHECK;
2064 feed_reverse (EV_A_ (W)w); 2763 feed_reverse (EV_A_ (W)w);
2065 } 2764 }
2066 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2765 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2067 2766
2068 feed_reverse_done (EV_A_ EV_TIMEOUT); 2767 feed_reverse_done (EV_A_ EV_TIMER);
2069 } 2768 }
2070} 2769}
2071 2770
2072#if EV_PERIODIC_ENABLE 2771#if EV_PERIODIC_ENABLE
2772
2773static void noinline
2774periodic_recalc (EV_P_ ev_periodic *w)
2775{
2776 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2777 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2778
2779 /* the above almost always errs on the low side */
2780 while (at <= ev_rt_now)
2781 {
2782 ev_tstamp nat = at + w->interval;
2783
2784 /* when resolution fails us, we use ev_rt_now */
2785 if (expect_false (nat == at))
2786 {
2787 at = ev_rt_now;
2788 break;
2789 }
2790
2791 at = nat;
2792 }
2793
2794 ev_at (w) = at;
2795}
2796
2073/* make periodics pending */ 2797/* make periodics pending */
2074inline_size void 2798inline_size void
2075periodics_reify (EV_P) 2799periodics_reify (EV_P)
2076{ 2800{
2077 EV_FREQUENT_CHECK; 2801 EV_FREQUENT_CHECK;
… …
2096 ANHE_at_cache (periodics [HEAP0]); 2820 ANHE_at_cache (periodics [HEAP0]);
2097 downheap (periodics, periodiccnt, HEAP0); 2821 downheap (periodics, periodiccnt, HEAP0);
2098 } 2822 }
2099 else if (w->interval) 2823 else if (w->interval)
2100 { 2824 {
2101 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2825 periodic_recalc (EV_A_ w);
2102 /* if next trigger time is not sufficiently in the future, put it there */
2103 /* this might happen because of floating point inexactness */
2104 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2105 {
2106 ev_at (w) += w->interval;
2107
2108 /* if interval is unreasonably low we might still have a time in the past */
2109 /* so correct this. this will make the periodic very inexact, but the user */
2110 /* has effectively asked to get triggered more often than possible */
2111 if (ev_at (w) < ev_rt_now)
2112 ev_at (w) = ev_rt_now;
2113 }
2114
2115 ANHE_at_cache (periodics [HEAP0]); 2826 ANHE_at_cache (periodics [HEAP0]);
2116 downheap (periodics, periodiccnt, HEAP0); 2827 downheap (periodics, periodiccnt, HEAP0);
2117 } 2828 }
2118 else 2829 else
2119 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2830 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2126 feed_reverse_done (EV_A_ EV_PERIODIC); 2837 feed_reverse_done (EV_A_ EV_PERIODIC);
2127 } 2838 }
2128} 2839}
2129 2840
2130/* simply recalculate all periodics */ 2841/* simply recalculate all periodics */
2131/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2842/* TODO: maybe ensure that at least one event happens when jumping forward? */
2132static void noinline 2843static void noinline ecb_cold
2133periodics_reschedule (EV_P) 2844periodics_reschedule (EV_P)
2134{ 2845{
2135 int i; 2846 int i;
2136 2847
2137 /* adjust periodics after time jump */ 2848 /* adjust periodics after time jump */
… …
2140 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2851 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2141 2852
2142 if (w->reschedule_cb) 2853 if (w->reschedule_cb)
2143 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2854 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2144 else if (w->interval) 2855 else if (w->interval)
2145 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2856 periodic_recalc (EV_A_ w);
2146 2857
2147 ANHE_at_cache (periodics [i]); 2858 ANHE_at_cache (periodics [i]);
2148 } 2859 }
2149 2860
2150 reheap (periodics, periodiccnt); 2861 reheap (periodics, periodiccnt);
2151} 2862}
2152#endif 2863#endif
2153 2864
2154/* adjust all timers by a given offset */ 2865/* adjust all timers by a given offset */
2155static void noinline 2866static void noinline ecb_cold
2156timers_reschedule (EV_P_ ev_tstamp adjust) 2867timers_reschedule (EV_P_ ev_tstamp adjust)
2157{ 2868{
2158 int i; 2869 int i;
2159 2870
2160 for (i = 0; i < timercnt; ++i) 2871 for (i = 0; i < timercnt; ++i)
… …
2197 * doesn't hurt either as we only do this on time-jumps or 2908 * doesn't hurt either as we only do this on time-jumps or
2198 * in the unlikely event of having been preempted here. 2909 * in the unlikely event of having been preempted here.
2199 */ 2910 */
2200 for (i = 4; --i; ) 2911 for (i = 4; --i; )
2201 { 2912 {
2913 ev_tstamp diff;
2202 rtmn_diff = ev_rt_now - mn_now; 2914 rtmn_diff = ev_rt_now - mn_now;
2203 2915
2916 diff = odiff - rtmn_diff;
2917
2204 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2918 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2205 return; /* all is well */ 2919 return; /* all is well */
2206 2920
2207 ev_rt_now = ev_time (); 2921 ev_rt_now = ev_time ();
2208 mn_now = get_clock (); 2922 mn_now = get_clock ();
2209 now_floor = mn_now; 2923 now_floor = mn_now;
… …
2231 2945
2232 mn_now = ev_rt_now; 2946 mn_now = ev_rt_now;
2233 } 2947 }
2234} 2948}
2235 2949
2236void 2950int
2237ev_loop (EV_P_ int flags) 2951ev_run (EV_P_ int flags)
2238{ 2952{
2239#if EV_MINIMAL < 2 2953#if EV_FEATURE_API
2240 ++loop_depth; 2954 ++loop_depth;
2241#endif 2955#endif
2242 2956
2243 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2957 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2244 2958
2245 loop_done = EVUNLOOP_CANCEL; 2959 loop_done = EVBREAK_CANCEL;
2246 2960
2247 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2961 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2248 2962
2249 do 2963 do
2250 { 2964 {
2251#if EV_VERIFY >= 2 2965#if EV_VERIFY >= 2
2252 ev_loop_verify (EV_A); 2966 ev_verify (EV_A);
2253#endif 2967#endif
2254 2968
2255#ifndef _WIN32 2969#ifndef _WIN32
2256 if (expect_false (curpid)) /* penalise the forking check even more */ 2970 if (expect_false (curpid)) /* penalise the forking check even more */
2257 if (expect_false (getpid () != curpid)) 2971 if (expect_false (getpid () != curpid))
… …
2269 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2983 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2270 EV_INVOKE_PENDING; 2984 EV_INVOKE_PENDING;
2271 } 2985 }
2272#endif 2986#endif
2273 2987
2988#if EV_PREPARE_ENABLE
2274 /* queue prepare watchers (and execute them) */ 2989 /* queue prepare watchers (and execute them) */
2275 if (expect_false (preparecnt)) 2990 if (expect_false (preparecnt))
2276 { 2991 {
2277 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2992 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2278 EV_INVOKE_PENDING; 2993 EV_INVOKE_PENDING;
2279 } 2994 }
2995#endif
2280 2996
2281 if (expect_false (loop_done)) 2997 if (expect_false (loop_done))
2282 break; 2998 break;
2283 2999
2284 /* we might have forked, so reify kernel state if necessary */ 3000 /* we might have forked, so reify kernel state if necessary */
… …
2291 /* calculate blocking time */ 3007 /* calculate blocking time */
2292 { 3008 {
2293 ev_tstamp waittime = 0.; 3009 ev_tstamp waittime = 0.;
2294 ev_tstamp sleeptime = 0.; 3010 ev_tstamp sleeptime = 0.;
2295 3011
3012 /* remember old timestamp for io_blocktime calculation */
3013 ev_tstamp prev_mn_now = mn_now;
3014
3015 /* update time to cancel out callback processing overhead */
3016 time_update (EV_A_ 1e100);
3017
3018 /* from now on, we want a pipe-wake-up */
3019 pipe_write_wanted = 1;
3020
3021 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3022
2296 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3023 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2297 { 3024 {
2298 /* remember old timestamp for io_blocktime calculation */
2299 ev_tstamp prev_mn_now = mn_now;
2300
2301 /* update time to cancel out callback processing overhead */
2302 time_update (EV_A_ 1e100);
2303
2304 waittime = MAX_BLOCKTIME; 3025 waittime = MAX_BLOCKTIME;
2305 3026
2306 if (timercnt) 3027 if (timercnt)
2307 { 3028 {
2308 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3029 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2309 if (waittime > to) waittime = to; 3030 if (waittime > to) waittime = to;
2310 } 3031 }
2311 3032
2312#if EV_PERIODIC_ENABLE 3033#if EV_PERIODIC_ENABLE
2313 if (periodiccnt) 3034 if (periodiccnt)
2314 { 3035 {
2315 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3036 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2316 if (waittime > to) waittime = to; 3037 if (waittime > to) waittime = to;
2317 } 3038 }
2318#endif 3039#endif
2319 3040
2320 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3041 /* don't let timeouts decrease the waittime below timeout_blocktime */
2321 if (expect_false (waittime < timeout_blocktime)) 3042 if (expect_false (waittime < timeout_blocktime))
2322 waittime = timeout_blocktime; 3043 waittime = timeout_blocktime;
3044
3045 /* at this point, we NEED to wait, so we have to ensure */
3046 /* to pass a minimum nonzero value to the backend */
3047 if (expect_false (waittime < backend_mintime))
3048 waittime = backend_mintime;
2323 3049
2324 /* extra check because io_blocktime is commonly 0 */ 3050 /* extra check because io_blocktime is commonly 0 */
2325 if (expect_false (io_blocktime)) 3051 if (expect_false (io_blocktime))
2326 { 3052 {
2327 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3053 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2328 3054
2329 if (sleeptime > waittime - backend_fudge) 3055 if (sleeptime > waittime - backend_mintime)
2330 sleeptime = waittime - backend_fudge; 3056 sleeptime = waittime - backend_mintime;
2331 3057
2332 if (expect_true (sleeptime > 0.)) 3058 if (expect_true (sleeptime > 0.))
2333 { 3059 {
2334 ev_sleep (sleeptime); 3060 ev_sleep (sleeptime);
2335 waittime -= sleeptime; 3061 waittime -= sleeptime;
2336 } 3062 }
2337 } 3063 }
2338 } 3064 }
2339 3065
2340#if EV_MINIMAL < 2 3066#if EV_FEATURE_API
2341 ++loop_count; 3067 ++loop_count;
2342#endif 3068#endif
2343 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3069 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2344 backend_poll (EV_A_ waittime); 3070 backend_poll (EV_A_ waittime);
2345 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3071 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3072
3073 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3074
3075 if (pipe_write_skipped)
3076 {
3077 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3078 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3079 }
3080
2346 3081
2347 /* update ev_rt_now, do magic */ 3082 /* update ev_rt_now, do magic */
2348 time_update (EV_A_ waittime + sleeptime); 3083 time_update (EV_A_ waittime + sleeptime);
2349 } 3084 }
2350 3085
… …
2357#if EV_IDLE_ENABLE 3092#if EV_IDLE_ENABLE
2358 /* queue idle watchers unless other events are pending */ 3093 /* queue idle watchers unless other events are pending */
2359 idle_reify (EV_A); 3094 idle_reify (EV_A);
2360#endif 3095#endif
2361 3096
3097#if EV_CHECK_ENABLE
2362 /* queue check watchers, to be executed first */ 3098 /* queue check watchers, to be executed first */
2363 if (expect_false (checkcnt)) 3099 if (expect_false (checkcnt))
2364 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3100 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3101#endif
2365 3102
2366 EV_INVOKE_PENDING; 3103 EV_INVOKE_PENDING;
2367 } 3104 }
2368 while (expect_true ( 3105 while (expect_true (
2369 activecnt 3106 activecnt
2370 && !loop_done 3107 && !loop_done
2371 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3108 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2372 )); 3109 ));
2373 3110
2374 if (loop_done == EVUNLOOP_ONE) 3111 if (loop_done == EVBREAK_ONE)
2375 loop_done = EVUNLOOP_CANCEL; 3112 loop_done = EVBREAK_CANCEL;
2376 3113
2377#if EV_MINIMAL < 2 3114#if EV_FEATURE_API
2378 --loop_depth; 3115 --loop_depth;
2379#endif 3116#endif
3117
3118 return activecnt;
2380} 3119}
2381 3120
2382void 3121void
2383ev_unloop (EV_P_ int how) 3122ev_break (EV_P_ int how) EV_THROW
2384{ 3123{
2385 loop_done = how; 3124 loop_done = how;
2386} 3125}
2387 3126
2388void 3127void
2389ev_ref (EV_P) 3128ev_ref (EV_P) EV_THROW
2390{ 3129{
2391 ++activecnt; 3130 ++activecnt;
2392} 3131}
2393 3132
2394void 3133void
2395ev_unref (EV_P) 3134ev_unref (EV_P) EV_THROW
2396{ 3135{
2397 --activecnt; 3136 --activecnt;
2398} 3137}
2399 3138
2400void 3139void
2401ev_now_update (EV_P) 3140ev_now_update (EV_P) EV_THROW
2402{ 3141{
2403 time_update (EV_A_ 1e100); 3142 time_update (EV_A_ 1e100);
2404} 3143}
2405 3144
2406void 3145void
2407ev_suspend (EV_P) 3146ev_suspend (EV_P) EV_THROW
2408{ 3147{
2409 ev_now_update (EV_A); 3148 ev_now_update (EV_A);
2410} 3149}
2411 3150
2412void 3151void
2413ev_resume (EV_P) 3152ev_resume (EV_P) EV_THROW
2414{ 3153{
2415 ev_tstamp mn_prev = mn_now; 3154 ev_tstamp mn_prev = mn_now;
2416 3155
2417 ev_now_update (EV_A); 3156 ev_now_update (EV_A);
2418 timers_reschedule (EV_A_ mn_now - mn_prev); 3157 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2457 w->pending = 0; 3196 w->pending = 0;
2458 } 3197 }
2459} 3198}
2460 3199
2461int 3200int
2462ev_clear_pending (EV_P_ void *w) 3201ev_clear_pending (EV_P_ void *w) EV_THROW
2463{ 3202{
2464 W w_ = (W)w; 3203 W w_ = (W)w;
2465 int pending = w_->pending; 3204 int pending = w_->pending;
2466 3205
2467 if (expect_true (pending)) 3206 if (expect_true (pending))
… …
2500} 3239}
2501 3240
2502/*****************************************************************************/ 3241/*****************************************************************************/
2503 3242
2504void noinline 3243void noinline
2505ev_io_start (EV_P_ ev_io *w) 3244ev_io_start (EV_P_ ev_io *w) EV_THROW
2506{ 3245{
2507 int fd = w->fd; 3246 int fd = w->fd;
2508 3247
2509 if (expect_false (ev_is_active (w))) 3248 if (expect_false (ev_is_active (w)))
2510 return; 3249 return;
2511 3250
2512 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3251 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2513 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3252 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2514 3253
2515 EV_FREQUENT_CHECK; 3254 EV_FREQUENT_CHECK;
2516 3255
2517 ev_start (EV_A_ (W)w, 1); 3256 ev_start (EV_A_ (W)w, 1);
2518 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3257 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2519 wlist_add (&anfds[fd].head, (WL)w); 3258 wlist_add (&anfds[fd].head, (WL)w);
2520 3259
3260 /* common bug, apparently */
3261 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3262
2521 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3263 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2522 w->events &= ~EV__IOFDSET; 3264 w->events &= ~EV__IOFDSET;
2523 3265
2524 EV_FREQUENT_CHECK; 3266 EV_FREQUENT_CHECK;
2525} 3267}
2526 3268
2527void noinline 3269void noinline
2528ev_io_stop (EV_P_ ev_io *w) 3270ev_io_stop (EV_P_ ev_io *w) EV_THROW
2529{ 3271{
2530 clear_pending (EV_A_ (W)w); 3272 clear_pending (EV_A_ (W)w);
2531 if (expect_false (!ev_is_active (w))) 3273 if (expect_false (!ev_is_active (w)))
2532 return; 3274 return;
2533 3275
… …
2536 EV_FREQUENT_CHECK; 3278 EV_FREQUENT_CHECK;
2537 3279
2538 wlist_del (&anfds[w->fd].head, (WL)w); 3280 wlist_del (&anfds[w->fd].head, (WL)w);
2539 ev_stop (EV_A_ (W)w); 3281 ev_stop (EV_A_ (W)w);
2540 3282
2541 fd_change (EV_A_ w->fd, 1); 3283 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2542 3284
2543 EV_FREQUENT_CHECK; 3285 EV_FREQUENT_CHECK;
2544} 3286}
2545 3287
2546void noinline 3288void noinline
2547ev_timer_start (EV_P_ ev_timer *w) 3289ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2548{ 3290{
2549 if (expect_false (ev_is_active (w))) 3291 if (expect_false (ev_is_active (w)))
2550 return; 3292 return;
2551 3293
2552 ev_at (w) += mn_now; 3294 ev_at (w) += mn_now;
… …
2566 3308
2567 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3309 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2568} 3310}
2569 3311
2570void noinline 3312void noinline
2571ev_timer_stop (EV_P_ ev_timer *w) 3313ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2572{ 3314{
2573 clear_pending (EV_A_ (W)w); 3315 clear_pending (EV_A_ (W)w);
2574 if (expect_false (!ev_is_active (w))) 3316 if (expect_false (!ev_is_active (w)))
2575 return; 3317 return;
2576 3318
… …
2588 timers [active] = timers [timercnt + HEAP0]; 3330 timers [active] = timers [timercnt + HEAP0];
2589 adjustheap (timers, timercnt, active); 3331 adjustheap (timers, timercnt, active);
2590 } 3332 }
2591 } 3333 }
2592 3334
2593 EV_FREQUENT_CHECK;
2594
2595 ev_at (w) -= mn_now; 3335 ev_at (w) -= mn_now;
2596 3336
2597 ev_stop (EV_A_ (W)w); 3337 ev_stop (EV_A_ (W)w);
3338
3339 EV_FREQUENT_CHECK;
2598} 3340}
2599 3341
2600void noinline 3342void noinline
2601ev_timer_again (EV_P_ ev_timer *w) 3343ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2602{ 3344{
2603 EV_FREQUENT_CHECK; 3345 EV_FREQUENT_CHECK;
3346
3347 clear_pending (EV_A_ (W)w);
2604 3348
2605 if (ev_is_active (w)) 3349 if (ev_is_active (w))
2606 { 3350 {
2607 if (w->repeat) 3351 if (w->repeat)
2608 { 3352 {
… …
2621 3365
2622 EV_FREQUENT_CHECK; 3366 EV_FREQUENT_CHECK;
2623} 3367}
2624 3368
2625ev_tstamp 3369ev_tstamp
2626ev_timer_remaining (EV_P_ ev_timer *w) 3370ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2627{ 3371{
2628 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3372 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2629} 3373}
2630 3374
2631#if EV_PERIODIC_ENABLE 3375#if EV_PERIODIC_ENABLE
2632void noinline 3376void noinline
2633ev_periodic_start (EV_P_ ev_periodic *w) 3377ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2634{ 3378{
2635 if (expect_false (ev_is_active (w))) 3379 if (expect_false (ev_is_active (w)))
2636 return; 3380 return;
2637 3381
2638 if (w->reschedule_cb) 3382 if (w->reschedule_cb)
2639 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3383 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2640 else if (w->interval) 3384 else if (w->interval)
2641 { 3385 {
2642 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3386 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2643 /* this formula differs from the one in periodic_reify because we do not always round up */ 3387 periodic_recalc (EV_A_ w);
2644 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2645 } 3388 }
2646 else 3389 else
2647 ev_at (w) = w->offset; 3390 ev_at (w) = w->offset;
2648 3391
2649 EV_FREQUENT_CHECK; 3392 EV_FREQUENT_CHECK;
… …
2659 3402
2660 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3403 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2661} 3404}
2662 3405
2663void noinline 3406void noinline
2664ev_periodic_stop (EV_P_ ev_periodic *w) 3407ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2665{ 3408{
2666 clear_pending (EV_A_ (W)w); 3409 clear_pending (EV_A_ (W)w);
2667 if (expect_false (!ev_is_active (w))) 3410 if (expect_false (!ev_is_active (w)))
2668 return; 3411 return;
2669 3412
… …
2681 periodics [active] = periodics [periodiccnt + HEAP0]; 3424 periodics [active] = periodics [periodiccnt + HEAP0];
2682 adjustheap (periodics, periodiccnt, active); 3425 adjustheap (periodics, periodiccnt, active);
2683 } 3426 }
2684 } 3427 }
2685 3428
2686 EV_FREQUENT_CHECK;
2687
2688 ev_stop (EV_A_ (W)w); 3429 ev_stop (EV_A_ (W)w);
3430
3431 EV_FREQUENT_CHECK;
2689} 3432}
2690 3433
2691void noinline 3434void noinline
2692ev_periodic_again (EV_P_ ev_periodic *w) 3435ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2693{ 3436{
2694 /* TODO: use adjustheap and recalculation */ 3437 /* TODO: use adjustheap and recalculation */
2695 ev_periodic_stop (EV_A_ w); 3438 ev_periodic_stop (EV_A_ w);
2696 ev_periodic_start (EV_A_ w); 3439 ev_periodic_start (EV_A_ w);
2697} 3440}
… …
2699 3442
2700#ifndef SA_RESTART 3443#ifndef SA_RESTART
2701# define SA_RESTART 0 3444# define SA_RESTART 0
2702#endif 3445#endif
2703 3446
3447#if EV_SIGNAL_ENABLE
3448
2704void noinline 3449void noinline
2705ev_signal_start (EV_P_ ev_signal *w) 3450ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2706{ 3451{
2707 if (expect_false (ev_is_active (w))) 3452 if (expect_false (ev_is_active (w)))
2708 return; 3453 return;
2709 3454
2710 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3455 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2768 sa.sa_handler = ev_sighandler; 3513 sa.sa_handler = ev_sighandler;
2769 sigfillset (&sa.sa_mask); 3514 sigfillset (&sa.sa_mask);
2770 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3515 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2771 sigaction (w->signum, &sa, 0); 3516 sigaction (w->signum, &sa, 0);
2772 3517
3518 if (origflags & EVFLAG_NOSIGMASK)
3519 {
2773 sigemptyset (&sa.sa_mask); 3520 sigemptyset (&sa.sa_mask);
2774 sigaddset (&sa.sa_mask, w->signum); 3521 sigaddset (&sa.sa_mask, w->signum);
2775 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3522 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3523 }
2776#endif 3524#endif
2777 } 3525 }
2778 3526
2779 EV_FREQUENT_CHECK; 3527 EV_FREQUENT_CHECK;
2780} 3528}
2781 3529
2782void noinline 3530void noinline
2783ev_signal_stop (EV_P_ ev_signal *w) 3531ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2784{ 3532{
2785 clear_pending (EV_A_ (W)w); 3533 clear_pending (EV_A_ (W)w);
2786 if (expect_false (!ev_is_active (w))) 3534 if (expect_false (!ev_is_active (w)))
2787 return; 3535 return;
2788 3536
… …
2814 } 3562 }
2815 3563
2816 EV_FREQUENT_CHECK; 3564 EV_FREQUENT_CHECK;
2817} 3565}
2818 3566
3567#endif
3568
3569#if EV_CHILD_ENABLE
3570
2819void 3571void
2820ev_child_start (EV_P_ ev_child *w) 3572ev_child_start (EV_P_ ev_child *w) EV_THROW
2821{ 3573{
2822#if EV_MULTIPLICITY 3574#if EV_MULTIPLICITY
2823 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3575 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2824#endif 3576#endif
2825 if (expect_false (ev_is_active (w))) 3577 if (expect_false (ev_is_active (w)))
2826 return; 3578 return;
2827 3579
2828 EV_FREQUENT_CHECK; 3580 EV_FREQUENT_CHECK;
2829 3581
2830 ev_start (EV_A_ (W)w, 1); 3582 ev_start (EV_A_ (W)w, 1);
2831 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3583 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2832 3584
2833 EV_FREQUENT_CHECK; 3585 EV_FREQUENT_CHECK;
2834} 3586}
2835 3587
2836void 3588void
2837ev_child_stop (EV_P_ ev_child *w) 3589ev_child_stop (EV_P_ ev_child *w) EV_THROW
2838{ 3590{
2839 clear_pending (EV_A_ (W)w); 3591 clear_pending (EV_A_ (W)w);
2840 if (expect_false (!ev_is_active (w))) 3592 if (expect_false (!ev_is_active (w)))
2841 return; 3593 return;
2842 3594
2843 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
2844 3596
2845 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3597 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2846 ev_stop (EV_A_ (W)w); 3598 ev_stop (EV_A_ (W)w);
2847 3599
2848 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
2849} 3601}
3602
3603#endif
2850 3604
2851#if EV_STAT_ENABLE 3605#if EV_STAT_ENABLE
2852 3606
2853# ifdef _WIN32 3607# ifdef _WIN32
2854# undef lstat 3608# undef lstat
… …
2915 if (!pend || pend == path) 3669 if (!pend || pend == path)
2916 break; 3670 break;
2917 3671
2918 *pend = 0; 3672 *pend = 0;
2919 w->wd = inotify_add_watch (fs_fd, path, mask); 3673 w->wd = inotify_add_watch (fs_fd, path, mask);
2920 } 3674 }
2921 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3675 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2922 } 3676 }
2923 } 3677 }
2924 3678
2925 if (w->wd >= 0) 3679 if (w->wd >= 0)
2926 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3680 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2927 3681
2928 /* now re-arm timer, if required */ 3682 /* now re-arm timer, if required */
2929 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3683 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2930 ev_timer_again (EV_A_ &w->timer); 3684 ev_timer_again (EV_A_ &w->timer);
2931 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3685 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2939 3693
2940 if (wd < 0) 3694 if (wd < 0)
2941 return; 3695 return;
2942 3696
2943 w->wd = -2; 3697 w->wd = -2;
2944 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3698 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2945 wlist_del (&fs_hash [slot].head, (WL)w); 3699 wlist_del (&fs_hash [slot].head, (WL)w);
2946 3700
2947 /* remove this watcher, if others are watching it, they will rearm */ 3701 /* remove this watcher, if others are watching it, they will rearm */
2948 inotify_rm_watch (fs_fd, wd); 3702 inotify_rm_watch (fs_fd, wd);
2949} 3703}
… …
2951static void noinline 3705static void noinline
2952infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3706infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2953{ 3707{
2954 if (slot < 0) 3708 if (slot < 0)
2955 /* overflow, need to check for all hash slots */ 3709 /* overflow, need to check for all hash slots */
2956 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3710 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2957 infy_wd (EV_A_ slot, wd, ev); 3711 infy_wd (EV_A_ slot, wd, ev);
2958 else 3712 else
2959 { 3713 {
2960 WL w_; 3714 WL w_;
2961 3715
2962 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3716 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2963 { 3717 {
2964 ev_stat *w = (ev_stat *)w_; 3718 ev_stat *w = (ev_stat *)w_;
2965 w_ = w_->next; /* lets us remove this watcher and all before it */ 3719 w_ = w_->next; /* lets us remove this watcher and all before it */
2966 3720
2967 if (w->wd == wd || wd == -1) 3721 if (w->wd == wd || wd == -1)
2968 { 3722 {
2969 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3723 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2970 { 3724 {
2971 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3725 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2972 w->wd = -1; 3726 w->wd = -1;
2973 infy_add (EV_A_ w); /* re-add, no matter what */ 3727 infy_add (EV_A_ w); /* re-add, no matter what */
2974 } 3728 }
2975 3729
2976 stat_timer_cb (EV_A_ &w->timer, 0); 3730 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2992 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3746 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2993 ofs += sizeof (struct inotify_event) + ev->len; 3747 ofs += sizeof (struct inotify_event) + ev->len;
2994 } 3748 }
2995} 3749}
2996 3750
2997inline_size void 3751inline_size void ecb_cold
2998check_2625 (EV_P) 3752ev_check_2625 (EV_P)
2999{ 3753{
3000 /* kernels < 2.6.25 are borked 3754 /* kernels < 2.6.25 are borked
3001 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3755 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3002 */ 3756 */
3003 struct utsname buf; 3757 if (ev_linux_version () < 0x020619)
3004 int major, minor, micro;
3005
3006 if (uname (&buf))
3007 return;
3008
3009 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
3010 return;
3011
3012 if (major < 2
3013 || (major == 2 && minor < 6)
3014 || (major == 2 && minor == 6 && micro < 25))
3015 return; 3758 return;
3016 3759
3017 fs_2625 = 1; 3760 fs_2625 = 1;
3018} 3761}
3019 3762
3020inline_size int 3763inline_size int
3021infy_newfd (void) 3764infy_newfd (void)
3022{ 3765{
3023#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3766#if defined IN_CLOEXEC && defined IN_NONBLOCK
3024 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3767 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3025 if (fd >= 0) 3768 if (fd >= 0)
3026 return fd; 3769 return fd;
3027#endif 3770#endif
3028 return inotify_init (); 3771 return inotify_init ();
… …
3034 if (fs_fd != -2) 3777 if (fs_fd != -2)
3035 return; 3778 return;
3036 3779
3037 fs_fd = -1; 3780 fs_fd = -1;
3038 3781
3039 check_2625 (EV_A); 3782 ev_check_2625 (EV_A);
3040 3783
3041 fs_fd = infy_newfd (); 3784 fs_fd = infy_newfd ();
3042 3785
3043 if (fs_fd >= 0) 3786 if (fs_fd >= 0)
3044 { 3787 {
… …
3069 ev_io_set (&fs_w, fs_fd, EV_READ); 3812 ev_io_set (&fs_w, fs_fd, EV_READ);
3070 ev_io_start (EV_A_ &fs_w); 3813 ev_io_start (EV_A_ &fs_w);
3071 ev_unref (EV_A); 3814 ev_unref (EV_A);
3072 } 3815 }
3073 3816
3074 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3817 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3075 { 3818 {
3076 WL w_ = fs_hash [slot].head; 3819 WL w_ = fs_hash [slot].head;
3077 fs_hash [slot].head = 0; 3820 fs_hash [slot].head = 0;
3078 3821
3079 while (w_) 3822 while (w_)
… …
3103#else 3846#else
3104# define EV_LSTAT(p,b) lstat (p, b) 3847# define EV_LSTAT(p,b) lstat (p, b)
3105#endif 3848#endif
3106 3849
3107void 3850void
3108ev_stat_stat (EV_P_ ev_stat *w) 3851ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3109{ 3852{
3110 if (lstat (w->path, &w->attr) < 0) 3853 if (lstat (w->path, &w->attr) < 0)
3111 w->attr.st_nlink = 0; 3854 w->attr.st_nlink = 0;
3112 else if (!w->attr.st_nlink) 3855 else if (!w->attr.st_nlink)
3113 w->attr.st_nlink = 1; 3856 w->attr.st_nlink = 1;
… …
3152 ev_feed_event (EV_A_ w, EV_STAT); 3895 ev_feed_event (EV_A_ w, EV_STAT);
3153 } 3896 }
3154} 3897}
3155 3898
3156void 3899void
3157ev_stat_start (EV_P_ ev_stat *w) 3900ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3158{ 3901{
3159 if (expect_false (ev_is_active (w))) 3902 if (expect_false (ev_is_active (w)))
3160 return; 3903 return;
3161 3904
3162 ev_stat_stat (EV_A_ w); 3905 ev_stat_stat (EV_A_ w);
… …
3183 3926
3184 EV_FREQUENT_CHECK; 3927 EV_FREQUENT_CHECK;
3185} 3928}
3186 3929
3187void 3930void
3188ev_stat_stop (EV_P_ ev_stat *w) 3931ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3189{ 3932{
3190 clear_pending (EV_A_ (W)w); 3933 clear_pending (EV_A_ (W)w);
3191 if (expect_false (!ev_is_active (w))) 3934 if (expect_false (!ev_is_active (w)))
3192 return; 3935 return;
3193 3936
… …
3209} 3952}
3210#endif 3953#endif
3211 3954
3212#if EV_IDLE_ENABLE 3955#if EV_IDLE_ENABLE
3213void 3956void
3214ev_idle_start (EV_P_ ev_idle *w) 3957ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3215{ 3958{
3216 if (expect_false (ev_is_active (w))) 3959 if (expect_false (ev_is_active (w)))
3217 return; 3960 return;
3218 3961
3219 pri_adjust (EV_A_ (W)w); 3962 pri_adjust (EV_A_ (W)w);
… …
3232 3975
3233 EV_FREQUENT_CHECK; 3976 EV_FREQUENT_CHECK;
3234} 3977}
3235 3978
3236void 3979void
3237ev_idle_stop (EV_P_ ev_idle *w) 3980ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3238{ 3981{
3239 clear_pending (EV_A_ (W)w); 3982 clear_pending (EV_A_ (W)w);
3240 if (expect_false (!ev_is_active (w))) 3983 if (expect_false (!ev_is_active (w)))
3241 return; 3984 return;
3242 3985
… …
3254 3997
3255 EV_FREQUENT_CHECK; 3998 EV_FREQUENT_CHECK;
3256} 3999}
3257#endif 4000#endif
3258 4001
4002#if EV_PREPARE_ENABLE
3259void 4003void
3260ev_prepare_start (EV_P_ ev_prepare *w) 4004ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3261{ 4005{
3262 if (expect_false (ev_is_active (w))) 4006 if (expect_false (ev_is_active (w)))
3263 return; 4007 return;
3264 4008
3265 EV_FREQUENT_CHECK; 4009 EV_FREQUENT_CHECK;
… …
3270 4014
3271 EV_FREQUENT_CHECK; 4015 EV_FREQUENT_CHECK;
3272} 4016}
3273 4017
3274void 4018void
3275ev_prepare_stop (EV_P_ ev_prepare *w) 4019ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3276{ 4020{
3277 clear_pending (EV_A_ (W)w); 4021 clear_pending (EV_A_ (W)w);
3278 if (expect_false (!ev_is_active (w))) 4022 if (expect_false (!ev_is_active (w)))
3279 return; 4023 return;
3280 4024
… …
3289 4033
3290 ev_stop (EV_A_ (W)w); 4034 ev_stop (EV_A_ (W)w);
3291 4035
3292 EV_FREQUENT_CHECK; 4036 EV_FREQUENT_CHECK;
3293} 4037}
4038#endif
3294 4039
4040#if EV_CHECK_ENABLE
3295void 4041void
3296ev_check_start (EV_P_ ev_check *w) 4042ev_check_start (EV_P_ ev_check *w) EV_THROW
3297{ 4043{
3298 if (expect_false (ev_is_active (w))) 4044 if (expect_false (ev_is_active (w)))
3299 return; 4045 return;
3300 4046
3301 EV_FREQUENT_CHECK; 4047 EV_FREQUENT_CHECK;
… …
3306 4052
3307 EV_FREQUENT_CHECK; 4053 EV_FREQUENT_CHECK;
3308} 4054}
3309 4055
3310void 4056void
3311ev_check_stop (EV_P_ ev_check *w) 4057ev_check_stop (EV_P_ ev_check *w) EV_THROW
3312{ 4058{
3313 clear_pending (EV_A_ (W)w); 4059 clear_pending (EV_A_ (W)w);
3314 if (expect_false (!ev_is_active (w))) 4060 if (expect_false (!ev_is_active (w)))
3315 return; 4061 return;
3316 4062
… …
3325 4071
3326 ev_stop (EV_A_ (W)w); 4072 ev_stop (EV_A_ (W)w);
3327 4073
3328 EV_FREQUENT_CHECK; 4074 EV_FREQUENT_CHECK;
3329} 4075}
4076#endif
3330 4077
3331#if EV_EMBED_ENABLE 4078#if EV_EMBED_ENABLE
3332void noinline 4079void noinline
3333ev_embed_sweep (EV_P_ ev_embed *w) 4080ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3334{ 4081{
3335 ev_loop (w->other, EVLOOP_NONBLOCK); 4082 ev_run (w->other, EVRUN_NOWAIT);
3336} 4083}
3337 4084
3338static void 4085static void
3339embed_io_cb (EV_P_ ev_io *io, int revents) 4086embed_io_cb (EV_P_ ev_io *io, int revents)
3340{ 4087{
3341 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4088 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3342 4089
3343 if (ev_cb (w)) 4090 if (ev_cb (w))
3344 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4091 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3345 else 4092 else
3346 ev_loop (w->other, EVLOOP_NONBLOCK); 4093 ev_run (w->other, EVRUN_NOWAIT);
3347} 4094}
3348 4095
3349static void 4096static void
3350embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4097embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3351{ 4098{
… …
3355 EV_P = w->other; 4102 EV_P = w->other;
3356 4103
3357 while (fdchangecnt) 4104 while (fdchangecnt)
3358 { 4105 {
3359 fd_reify (EV_A); 4106 fd_reify (EV_A);
3360 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4107 ev_run (EV_A_ EVRUN_NOWAIT);
3361 } 4108 }
3362 } 4109 }
3363} 4110}
3364 4111
3365static void 4112static void
… …
3371 4118
3372 { 4119 {
3373 EV_P = w->other; 4120 EV_P = w->other;
3374 4121
3375 ev_loop_fork (EV_A); 4122 ev_loop_fork (EV_A);
3376 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4123 ev_run (EV_A_ EVRUN_NOWAIT);
3377 } 4124 }
3378 4125
3379 ev_embed_start (EV_A_ w); 4126 ev_embed_start (EV_A_ w);
3380} 4127}
3381 4128
… …
3386 ev_idle_stop (EV_A_ idle); 4133 ev_idle_stop (EV_A_ idle);
3387} 4134}
3388#endif 4135#endif
3389 4136
3390void 4137void
3391ev_embed_start (EV_P_ ev_embed *w) 4138ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3392{ 4139{
3393 if (expect_false (ev_is_active (w))) 4140 if (expect_false (ev_is_active (w)))
3394 return; 4141 return;
3395 4142
3396 { 4143 {
… …
3417 4164
3418 EV_FREQUENT_CHECK; 4165 EV_FREQUENT_CHECK;
3419} 4166}
3420 4167
3421void 4168void
3422ev_embed_stop (EV_P_ ev_embed *w) 4169ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3423{ 4170{
3424 clear_pending (EV_A_ (W)w); 4171 clear_pending (EV_A_ (W)w);
3425 if (expect_false (!ev_is_active (w))) 4172 if (expect_false (!ev_is_active (w)))
3426 return; 4173 return;
3427 4174
… …
3429 4176
3430 ev_io_stop (EV_A_ &w->io); 4177 ev_io_stop (EV_A_ &w->io);
3431 ev_prepare_stop (EV_A_ &w->prepare); 4178 ev_prepare_stop (EV_A_ &w->prepare);
3432 ev_fork_stop (EV_A_ &w->fork); 4179 ev_fork_stop (EV_A_ &w->fork);
3433 4180
4181 ev_stop (EV_A_ (W)w);
4182
3434 EV_FREQUENT_CHECK; 4183 EV_FREQUENT_CHECK;
3435} 4184}
3436#endif 4185#endif
3437 4186
3438#if EV_FORK_ENABLE 4187#if EV_FORK_ENABLE
3439void 4188void
3440ev_fork_start (EV_P_ ev_fork *w) 4189ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3441{ 4190{
3442 if (expect_false (ev_is_active (w))) 4191 if (expect_false (ev_is_active (w)))
3443 return; 4192 return;
3444 4193
3445 EV_FREQUENT_CHECK; 4194 EV_FREQUENT_CHECK;
… …
3450 4199
3451 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3452} 4201}
3453 4202
3454void 4203void
3455ev_fork_stop (EV_P_ ev_fork *w) 4204ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3456{ 4205{
3457 clear_pending (EV_A_ (W)w); 4206 clear_pending (EV_A_ (W)w);
3458 if (expect_false (!ev_is_active (w))) 4207 if (expect_false (!ev_is_active (w)))
3459 return; 4208 return;
3460 4209
… …
3471 4220
3472 EV_FREQUENT_CHECK; 4221 EV_FREQUENT_CHECK;
3473} 4222}
3474#endif 4223#endif
3475 4224
4225#if EV_CLEANUP_ENABLE
4226void
4227ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4228{
4229 if (expect_false (ev_is_active (w)))
4230 return;
4231
4232 EV_FREQUENT_CHECK;
4233
4234 ev_start (EV_A_ (W)w, ++cleanupcnt);
4235 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4236 cleanups [cleanupcnt - 1] = w;
4237
4238 /* cleanup watchers should never keep a refcount on the loop */
4239 ev_unref (EV_A);
4240 EV_FREQUENT_CHECK;
4241}
4242
4243void
4244ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4245{
4246 clear_pending (EV_A_ (W)w);
4247 if (expect_false (!ev_is_active (w)))
4248 return;
4249
4250 EV_FREQUENT_CHECK;
4251 ev_ref (EV_A);
4252
4253 {
4254 int active = ev_active (w);
4255
4256 cleanups [active - 1] = cleanups [--cleanupcnt];
4257 ev_active (cleanups [active - 1]) = active;
4258 }
4259
4260 ev_stop (EV_A_ (W)w);
4261
4262 EV_FREQUENT_CHECK;
4263}
4264#endif
4265
3476#if EV_ASYNC_ENABLE 4266#if EV_ASYNC_ENABLE
3477void 4267void
3478ev_async_start (EV_P_ ev_async *w) 4268ev_async_start (EV_P_ ev_async *w) EV_THROW
3479{ 4269{
3480 if (expect_false (ev_is_active (w))) 4270 if (expect_false (ev_is_active (w)))
3481 return; 4271 return;
4272
4273 w->sent = 0;
3482 4274
3483 evpipe_init (EV_A); 4275 evpipe_init (EV_A);
3484 4276
3485 EV_FREQUENT_CHECK; 4277 EV_FREQUENT_CHECK;
3486 4278
… …
3490 4282
3491 EV_FREQUENT_CHECK; 4283 EV_FREQUENT_CHECK;
3492} 4284}
3493 4285
3494void 4286void
3495ev_async_stop (EV_P_ ev_async *w) 4287ev_async_stop (EV_P_ ev_async *w) EV_THROW
3496{ 4288{
3497 clear_pending (EV_A_ (W)w); 4289 clear_pending (EV_A_ (W)w);
3498 if (expect_false (!ev_is_active (w))) 4290 if (expect_false (!ev_is_active (w)))
3499 return; 4291 return;
3500 4292
… …
3511 4303
3512 EV_FREQUENT_CHECK; 4304 EV_FREQUENT_CHECK;
3513} 4305}
3514 4306
3515void 4307void
3516ev_async_send (EV_P_ ev_async *w) 4308ev_async_send (EV_P_ ev_async *w) EV_THROW
3517{ 4309{
3518 w->sent = 1; 4310 w->sent = 1;
3519 evpipe_write (EV_A_ &async_pending); 4311 evpipe_write (EV_A_ &async_pending);
3520} 4312}
3521#endif 4313#endif
… …
3558 4350
3559 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4351 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3560} 4352}
3561 4353
3562void 4354void
3563ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4355ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3564{ 4356{
3565 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4357 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3566 4358
3567 if (expect_false (!once)) 4359 if (expect_false (!once))
3568 { 4360 {
3569 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4361 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3570 return; 4362 return;
3571 } 4363 }
3572 4364
3573 once->cb = cb; 4365 once->cb = cb;
3574 once->arg = arg; 4366 once->arg = arg;
… …
3589} 4381}
3590 4382
3591/*****************************************************************************/ 4383/*****************************************************************************/
3592 4384
3593#if EV_WALK_ENABLE 4385#if EV_WALK_ENABLE
3594void 4386void ecb_cold
3595ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4387ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3596{ 4388{
3597 int i, j; 4389 int i, j;
3598 ev_watcher_list *wl, *wn; 4390 ev_watcher_list *wl, *wn;
3599 4391
3600 if (types & (EV_IO | EV_EMBED)) 4392 if (types & (EV_IO | EV_EMBED))
… …
3643 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4435 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3644#endif 4436#endif
3645 4437
3646#if EV_IDLE_ENABLE 4438#if EV_IDLE_ENABLE
3647 if (types & EV_IDLE) 4439 if (types & EV_IDLE)
3648 for (j = NUMPRI; i--; ) 4440 for (j = NUMPRI; j--; )
3649 for (i = idlecnt [j]; i--; ) 4441 for (i = idlecnt [j]; i--; )
3650 cb (EV_A_ EV_IDLE, idles [j][i]); 4442 cb (EV_A_ EV_IDLE, idles [j][i]);
3651#endif 4443#endif
3652 4444
3653#if EV_FORK_ENABLE 4445#if EV_FORK_ENABLE
… …
3661 if (types & EV_ASYNC) 4453 if (types & EV_ASYNC)
3662 for (i = asynccnt; i--; ) 4454 for (i = asynccnt; i--; )
3663 cb (EV_A_ EV_ASYNC, asyncs [i]); 4455 cb (EV_A_ EV_ASYNC, asyncs [i]);
3664#endif 4456#endif
3665 4457
4458#if EV_PREPARE_ENABLE
3666 if (types & EV_PREPARE) 4459 if (types & EV_PREPARE)
3667 for (i = preparecnt; i--; ) 4460 for (i = preparecnt; i--; )
3668#if EV_EMBED_ENABLE 4461# if EV_EMBED_ENABLE
3669 if (ev_cb (prepares [i]) != embed_prepare_cb) 4462 if (ev_cb (prepares [i]) != embed_prepare_cb)
3670#endif 4463# endif
3671 cb (EV_A_ EV_PREPARE, prepares [i]); 4464 cb (EV_A_ EV_PREPARE, prepares [i]);
4465#endif
3672 4466
4467#if EV_CHECK_ENABLE
3673 if (types & EV_CHECK) 4468 if (types & EV_CHECK)
3674 for (i = checkcnt; i--; ) 4469 for (i = checkcnt; i--; )
3675 cb (EV_A_ EV_CHECK, checks [i]); 4470 cb (EV_A_ EV_CHECK, checks [i]);
4471#endif
3676 4472
4473#if EV_SIGNAL_ENABLE
3677 if (types & EV_SIGNAL) 4474 if (types & EV_SIGNAL)
3678 for (i = 0; i < EV_NSIG - 1; ++i) 4475 for (i = 0; i < EV_NSIG - 1; ++i)
3679 for (wl = signals [i].head; wl; ) 4476 for (wl = signals [i].head; wl; )
3680 { 4477 {
3681 wn = wl->next; 4478 wn = wl->next;
3682 cb (EV_A_ EV_SIGNAL, wl); 4479 cb (EV_A_ EV_SIGNAL, wl);
3683 wl = wn; 4480 wl = wn;
3684 } 4481 }
4482#endif
3685 4483
4484#if EV_CHILD_ENABLE
3686 if (types & EV_CHILD) 4485 if (types & EV_CHILD)
3687 for (i = EV_PID_HASHSIZE; i--; ) 4486 for (i = (EV_PID_HASHSIZE); i--; )
3688 for (wl = childs [i]; wl; ) 4487 for (wl = childs [i]; wl; )
3689 { 4488 {
3690 wn = wl->next; 4489 wn = wl->next;
3691 cb (EV_A_ EV_CHILD, wl); 4490 cb (EV_A_ EV_CHILD, wl);
3692 wl = wn; 4491 wl = wn;
3693 } 4492 }
4493#endif
3694/* EV_STAT 0x00001000 /* stat data changed */ 4494/* EV_STAT 0x00001000 /* stat data changed */
3695/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4495/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3696} 4496}
3697#endif 4497#endif
3698 4498
3699#if EV_MULTIPLICITY 4499#if EV_MULTIPLICITY
3700 #include "ev_wrap.h" 4500 #include "ev_wrap.h"
3701#endif 4501#endif
3702 4502
3703#ifdef __cplusplus
3704}
3705#endif
3706

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