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Comparing libev/ev.c (file contents):
Revision 1.318 by root, Tue Nov 17 00:22:28 2009 UTC vs.
Revision 1.428 by root, Tue May 8 15:44:09 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 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
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
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>
168#include <string.h>
158#include <fcntl.h> 169#include <fcntl.h>
159#include <stddef.h> 170#include <stddef.h>
160 171
161#include <stdio.h> 172#include <stdio.h>
162 173
163#include <assert.h> 174#include <assert.h>
164#include <errno.h> 175#include <errno.h>
165#include <sys/types.h> 176#include <sys/types.h>
166#include <time.h> 177#include <time.h>
178#include <limits.h>
167 179
168#include <signal.h> 180#include <signal.h>
169 181
170#ifdef EV_H 182#ifdef EV_H
171# include EV_H 183# include EV_H
172#else 184#else
173# 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
174#endif 197#endif
175 198
176#ifndef _WIN32 199#ifndef _WIN32
177# include <sys/time.h> 200# include <sys/time.h>
178# include <sys/wait.h> 201# include <sys/wait.h>
179# include <unistd.h> 202# include <unistd.h>
180#else 203#else
181# include <io.h> 204# include <io.h>
182# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
183# include <windows.h> 206# include <windows.h>
207# include <winsock2.h>
184# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
186# endif 210# endif
211# undef EV_AVOID_STDIO
187#endif 212#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
188 221
189/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
190 223
191/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG) 225#if defined EV_NSIG
193/* use what's provided */ 226/* use what's provided */
194#elif defined (NSIG) 227#elif defined NSIG
195# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
196#elif defined(_NSIG) 229#elif defined _NSIG
197# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
198#elif defined (SIGMAX) 231#elif defined SIGMAX
199# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
200#elif defined (SIG_MAX) 233#elif defined SIG_MAX
201# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
202#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
203# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
204#elif defined (MAXSIG) 237#elif defined MAXSIG
205# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG) 239#elif defined MAX_SIG
207# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig) 243#elif defined _sys_nsig
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else 245#else
213# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */ 247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
215# define EV_NSIG 65 249# define EV_NSIG 65
250#endif
251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
216#endif 254#endif
217 255
218#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221# else 259# else
222# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
223# endif 261# endif
224#endif 262#endif
225 263
226#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
229# else 267# else
230# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
231# endif 269# endif
232#endif 270#endif
233 271
… …
235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236#endif 274#endif
237 275
238#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
241# else 279# else
242# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
243# endif 281# endif
244#endif 282#endif
245 283
246#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
247# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
248#endif 286#endif
249 287
250#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
251# ifdef _WIN32 289# ifdef _WIN32
252# define EV_USE_POLL 0 290# define EV_USE_POLL 0
253# else 291# else
254# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
255# endif 293# endif
256#endif 294#endif
257 295
258#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
259# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261# else 299# else
262# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
263# endif 301# endif
264#endif 302#endif
265 303
… …
271# define EV_USE_PORT 0 309# define EV_USE_PORT 0
272#endif 310#endif
273 311
274#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
275# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
277# else 315# else
278# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
279# endif 317# endif
280#endif 318#endif
281 319
282#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
283# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
284# define EV_PID_HASHSIZE 1
285# else
286# define EV_PID_HASHSIZE 16
287# endif
288#endif 322#endif
289 323
290#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
291# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
292# define EV_INOTIFY_HASHSIZE 1
293# else
294# define EV_INOTIFY_HASHSIZE 16
295# endif
296#endif 326#endif
297 327
298#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
299# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
301# else 331# else
302# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
303# endif 333# endif
304#endif 334#endif
305 335
306#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
309# else 339# else
310# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
311# endif 341# endif
312#endif 342#endif
313 343
… …
316# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
317# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
318#endif 348#endif
319 349
320#ifndef EV_VERIFY 350#ifndef EV_VERIFY
321# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322#endif 352#endif
323 353
324#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
325# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
326#endif 356#endif
327 357
328#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
329# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330#endif 360#endif
331 361
332/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
335# include <syscall.h> 365# include <sys/syscall.h>
336# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
337# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
338# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
339# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
340# else 370# else
… …
343# endif 373# endif
344#endif 374#endif
345 375
346/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 376/* this block fixes any misconfiguration where we know we run into trouble otherwise */
347 377
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
348#ifndef CLOCK_MONOTONIC 384#ifndef CLOCK_MONOTONIC
349# undef EV_USE_MONOTONIC 385# undef EV_USE_MONOTONIC
350# define EV_USE_MONOTONIC 0 386# define EV_USE_MONOTONIC 0
351#endif 387#endif
352 388
… …
359# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
360# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
361#endif 397#endif
362 398
363#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
364# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
365# include <sys/select.h> 402# include <sys/select.h>
366# endif 403# endif
367#endif 404#endif
368 405
369#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h> 407# include <sys/statfs.h>
372# include <sys/inotify.h> 408# include <sys/inotify.h>
373/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
374# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
375# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
… …
392# define EFD_CLOEXEC O_CLOEXEC 428# define EFD_CLOEXEC O_CLOEXEC
393# else 429# else
394# define EFD_CLOEXEC 02000000 430# define EFD_CLOEXEC 02000000
395# endif 431# endif
396# endif 432# endif
397# ifdef __cplusplus
398extern "C" {
399# endif
400int eventfd (unsigned int initval, int flags); 433EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
401# ifdef __cplusplus
402}
403# endif
404#endif 434#endif
405 435
406#if EV_USE_SIGNALFD 436#if EV_USE_SIGNALFD
407/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 437/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
408# include <stdint.h> 438# include <stdint.h>
… …
414# define SFD_CLOEXEC O_CLOEXEC 444# define SFD_CLOEXEC O_CLOEXEC
415# else 445# else
416# define SFD_CLOEXEC 02000000 446# define SFD_CLOEXEC 02000000
417# endif 447# endif
418# endif 448# endif
419# ifdef __cplusplus
420extern "C" {
421# endif
422int signalfd (int fd, const sigset_t *mask, int flags); 449EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
423 450
424struct signalfd_siginfo 451struct signalfd_siginfo
425{ 452{
426 uint32_t ssi_signo; 453 uint32_t ssi_signo;
427 char pad[128 - sizeof (uint32_t)]; 454 char pad[128 - sizeof (uint32_t)];
428}; 455};
429# ifdef __cplusplus
430}
431# endif 456#endif
432#endif
433
434 457
435/**/ 458/**/
436 459
437#if EV_VERIFY >= 3 460#if EV_VERIFY >= 3
438# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 461# define EV_FREQUENT_CHECK ev_verify (EV_A)
439#else 462#else
440# define EV_FREQUENT_CHECK do { } while (0) 463# define EV_FREQUENT_CHECK do { } while (0)
441#endif 464#endif
442 465
443/* 466/*
444 * This is used to avoid floating point rounding problems. 467 * This is used to work around floating point rounding problems.
445 * It is added to ev_rt_now when scheduling periodics
446 * to ensure progress, time-wise, even when rounding
447 * errors are against us.
448 * This value is good at least till the year 4000. 468 * This value is good at least till the year 4000.
449 * Better solutions welcome.
450 */ 469 */
451#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 470#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
471/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
452 472
453#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 473#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
454#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 474#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
455 475
476#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
477#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
478
479/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
480/* ECB.H BEGIN */
481/*
482 * libecb - http://software.schmorp.de/pkg/libecb
483 *
484 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
485 * Copyright (©) 2011 Emanuele Giaquinta
486 * All rights reserved.
487 *
488 * Redistribution and use in source and binary forms, with or without modifica-
489 * tion, are permitted provided that the following conditions are met:
490 *
491 * 1. Redistributions of source code must retain the above copyright notice,
492 * this list of conditions and the following disclaimer.
493 *
494 * 2. Redistributions in binary form must reproduce the above copyright
495 * notice, this list of conditions and the following disclaimer in the
496 * documentation and/or other materials provided with the distribution.
497 *
498 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
499 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
500 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
501 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
502 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
503 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
504 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
505 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
506 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
507 * OF THE POSSIBILITY OF SUCH DAMAGE.
508 */
509
510#ifndef ECB_H
511#define ECB_H
512
513#ifdef _WIN32
514 typedef signed char int8_t;
515 typedef unsigned char uint8_t;
516 typedef signed short int16_t;
517 typedef unsigned short uint16_t;
518 typedef signed int int32_t;
519 typedef unsigned int uint32_t;
456#if __GNUC__ >= 4 520 #if __GNUC__
457# define expect(expr,value) __builtin_expect ((expr),(value)) 521 typedef signed long long int64_t;
458# define noinline __attribute__ ((noinline)) 522 typedef unsigned long long uint64_t;
523 #else /* _MSC_VER || __BORLANDC__ */
524 typedef signed __int64 int64_t;
525 typedef unsigned __int64 uint64_t;
526 #endif
459#else 527#else
460# define expect(expr,value) (expr) 528 #include <inttypes.h>
461# define noinline
462# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
463# define inline
464# endif 529#endif
530
531/* many compilers define _GNUC_ to some versions but then only implement
532 * what their idiot authors think are the "more important" extensions,
533 * causing enormous grief in return for some better fake benchmark numbers.
534 * or so.
535 * we try to detect these and simply assume they are not gcc - if they have
536 * an issue with that they should have done it right in the first place.
537 */
538#ifndef ECB_GCC_VERSION
539 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
540 #define ECB_GCC_VERSION(major,minor) 0
541 #else
542 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
465#endif 543 #endif
544#endif
466 545
546/*****************************************************************************/
547
548/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
549/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
550
551#if ECB_NO_THREADS
552# define ECB_NO_SMP 1
553#endif
554
555#if ECB_NO_THREADS || ECB_NO_SMP
556 #define ECB_MEMORY_FENCE do { } while (0)
557#endif
558
559#ifndef ECB_MEMORY_FENCE
560 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
561 #if __i386 || __i386__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
564 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
565 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
568 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
569 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
570 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
571 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
572 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
573 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
574 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
575 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
576 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
577 #elif __sparc || __sparc__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
579 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
580 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
581 #elif defined __s390__ || defined __s390x__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
583 #elif defined __mips__
584 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
585 #elif defined __alpha__
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
587 #endif
588 #endif
589#endif
590
591#ifndef ECB_MEMORY_FENCE
592 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
593 #define ECB_MEMORY_FENCE __sync_synchronize ()
594 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
595 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
596 #elif _MSC_VER >= 1400 /* VC++ 2005 */
597 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
598 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
599 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
600 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
601 #elif defined _WIN32
602 #include <WinNT.h>
603 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
604 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
605 #include <mbarrier.h>
606 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
607 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
608 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
609 #elif __xlC__
610 #define ECB_MEMORY_FENCE __sync ()
611 #endif
612#endif
613
614#ifndef ECB_MEMORY_FENCE
615 #if !ECB_AVOID_PTHREADS
616 /*
617 * if you get undefined symbol references to pthread_mutex_lock,
618 * or failure to find pthread.h, then you should implement
619 * the ECB_MEMORY_FENCE operations for your cpu/compiler
620 * OR provide pthread.h and link against the posix thread library
621 * of your system.
622 */
623 #include <pthread.h>
624 #define ECB_NEEDS_PTHREADS 1
625 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
626
627 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
628 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
629 #endif
630#endif
631
632#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
633 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
634#endif
635
636#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
637 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
638#endif
639
640/*****************************************************************************/
641
642#define ECB_C99 (__STDC_VERSION__ >= 199901L)
643
644#if __cplusplus
645 #define ecb_inline static inline
646#elif ECB_GCC_VERSION(2,5)
647 #define ecb_inline static __inline__
648#elif ECB_C99
649 #define ecb_inline static inline
650#else
651 #define ecb_inline static
652#endif
653
654#if ECB_GCC_VERSION(3,3)
655 #define ecb_restrict __restrict__
656#elif ECB_C99
657 #define ecb_restrict restrict
658#else
659 #define ecb_restrict
660#endif
661
662typedef int ecb_bool;
663
664#define ECB_CONCAT_(a, b) a ## b
665#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
666#define ECB_STRINGIFY_(a) # a
667#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
668
669#define ecb_function_ ecb_inline
670
671#if ECB_GCC_VERSION(3,1)
672 #define ecb_attribute(attrlist) __attribute__(attrlist)
673 #define ecb_is_constant(expr) __builtin_constant_p (expr)
674 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
675 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
676#else
677 #define ecb_attribute(attrlist)
678 #define ecb_is_constant(expr) 0
679 #define ecb_expect(expr,value) (expr)
680 #define ecb_prefetch(addr,rw,locality)
681#endif
682
683/* no emulation for ecb_decltype */
684#if ECB_GCC_VERSION(4,5)
685 #define ecb_decltype(x) __decltype(x)
686#elif ECB_GCC_VERSION(3,0)
687 #define ecb_decltype(x) __typeof(x)
688#endif
689
690#define ecb_noinline ecb_attribute ((__noinline__))
691#define ecb_noreturn ecb_attribute ((__noreturn__))
692#define ecb_unused ecb_attribute ((__unused__))
693#define ecb_const ecb_attribute ((__const__))
694#define ecb_pure ecb_attribute ((__pure__))
695
696#if ECB_GCC_VERSION(4,3)
697 #define ecb_artificial ecb_attribute ((__artificial__))
698 #define ecb_hot ecb_attribute ((__hot__))
699 #define ecb_cold ecb_attribute ((__cold__))
700#else
701 #define ecb_artificial
702 #define ecb_hot
703 #define ecb_cold
704#endif
705
706/* put around conditional expressions if you are very sure that the */
707/* expression is mostly true or mostly false. note that these return */
708/* booleans, not the expression. */
467#define expect_false(expr) expect ((expr) != 0, 0) 709#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
468#define expect_true(expr) expect ((expr) != 0, 1) 710#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
711/* for compatibility to the rest of the world */
712#define ecb_likely(expr) ecb_expect_true (expr)
713#define ecb_unlikely(expr) ecb_expect_false (expr)
714
715/* count trailing zero bits and count # of one bits */
716#if ECB_GCC_VERSION(3,4)
717 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
718 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
719 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
720 #define ecb_ctz32(x) __builtin_ctz (x)
721 #define ecb_ctz64(x) __builtin_ctzll (x)
722 #define ecb_popcount32(x) __builtin_popcount (x)
723 /* no popcountll */
724#else
725 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
726 ecb_function_ int
727 ecb_ctz32 (uint32_t x)
728 {
729 int r = 0;
730
731 x &= ~x + 1; /* this isolates the lowest bit */
732
733#if ECB_branchless_on_i386
734 r += !!(x & 0xaaaaaaaa) << 0;
735 r += !!(x & 0xcccccccc) << 1;
736 r += !!(x & 0xf0f0f0f0) << 2;
737 r += !!(x & 0xff00ff00) << 3;
738 r += !!(x & 0xffff0000) << 4;
739#else
740 if (x & 0xaaaaaaaa) r += 1;
741 if (x & 0xcccccccc) r += 2;
742 if (x & 0xf0f0f0f0) r += 4;
743 if (x & 0xff00ff00) r += 8;
744 if (x & 0xffff0000) r += 16;
745#endif
746
747 return r;
748 }
749
750 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
751 ecb_function_ int
752 ecb_ctz64 (uint64_t x)
753 {
754 int shift = x & 0xffffffffU ? 0 : 32;
755 return ecb_ctz32 (x >> shift) + shift;
756 }
757
758 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
759 ecb_function_ int
760 ecb_popcount32 (uint32_t x)
761 {
762 x -= (x >> 1) & 0x55555555;
763 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
764 x = ((x >> 4) + x) & 0x0f0f0f0f;
765 x *= 0x01010101;
766
767 return x >> 24;
768 }
769
770 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
771 ecb_function_ int ecb_ld32 (uint32_t x)
772 {
773 int r = 0;
774
775 if (x >> 16) { x >>= 16; r += 16; }
776 if (x >> 8) { x >>= 8; r += 8; }
777 if (x >> 4) { x >>= 4; r += 4; }
778 if (x >> 2) { x >>= 2; r += 2; }
779 if (x >> 1) { r += 1; }
780
781 return r;
782 }
783
784 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
785 ecb_function_ int ecb_ld64 (uint64_t x)
786 {
787 int r = 0;
788
789 if (x >> 32) { x >>= 32; r += 32; }
790
791 return r + ecb_ld32 (x);
792 }
793#endif
794
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
796ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
797{
798 return ( (x * 0x0802U & 0x22110U)
799 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
800}
801
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
803ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
804{
805 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
806 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
807 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
808 x = ( x >> 8 ) | ( x << 8);
809
810 return x;
811}
812
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
814ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
815{
816 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
817 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
818 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
819 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
820 x = ( x >> 16 ) | ( x << 16);
821
822 return x;
823}
824
825/* popcount64 is only available on 64 bit cpus as gcc builtin */
826/* so for this version we are lazy */
827ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
828ecb_function_ int
829ecb_popcount64 (uint64_t x)
830{
831 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
832}
833
834ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
841ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
842
843ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
844ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
845ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
846ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
847ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
848ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
849ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
850ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
851
852#if ECB_GCC_VERSION(4,3)
853 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
854 #define ecb_bswap32(x) __builtin_bswap32 (x)
855 #define ecb_bswap64(x) __builtin_bswap64 (x)
856#else
857 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
858 ecb_function_ uint16_t
859 ecb_bswap16 (uint16_t x)
860 {
861 return ecb_rotl16 (x, 8);
862 }
863
864 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
865 ecb_function_ uint32_t
866 ecb_bswap32 (uint32_t x)
867 {
868 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
869 }
870
871 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
872 ecb_function_ uint64_t
873 ecb_bswap64 (uint64_t x)
874 {
875 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
876 }
877#endif
878
879#if ECB_GCC_VERSION(4,5)
880 #define ecb_unreachable() __builtin_unreachable ()
881#else
882 /* this seems to work fine, but gcc always emits a warning for it :/ */
883 ecb_inline void ecb_unreachable (void) ecb_noreturn;
884 ecb_inline void ecb_unreachable (void) { }
885#endif
886
887/* try to tell the compiler that some condition is definitely true */
888#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
889
890ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
891ecb_inline unsigned char
892ecb_byteorder_helper (void)
893{
894 const uint32_t u = 0x11223344;
895 return *(unsigned char *)&u;
896}
897
898ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
899ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
900ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
901ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
902
903#if ECB_GCC_VERSION(3,0) || ECB_C99
904 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
905#else
906 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
907#endif
908
909#if __cplusplus
910 template<typename T>
911 static inline T ecb_div_rd (T val, T div)
912 {
913 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
914 }
915 template<typename T>
916 static inline T ecb_div_ru (T val, T div)
917 {
918 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
919 }
920#else
921 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
922 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
923#endif
924
925#if ecb_cplusplus_does_not_suck
926 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
927 template<typename T, int N>
928 static inline int ecb_array_length (const T (&arr)[N])
929 {
930 return N;
931 }
932#else
933 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
934#endif
935
936#endif
937
938/* ECB.H END */
939
940#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
941/* if your architecture doesn't need memory fences, e.g. because it is
942 * single-cpu/core, or if you use libev in a project that doesn't use libev
943 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
944 * libev, in which cases the memory fences become nops.
945 * alternatively, you can remove this #error and link against libpthread,
946 * which will then provide the memory fences.
947 */
948# error "memory fences not defined for your architecture, please report"
949#endif
950
951#ifndef ECB_MEMORY_FENCE
952# define ECB_MEMORY_FENCE do { } while (0)
953# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
954# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
955#endif
956
957#define expect_false(cond) ecb_expect_false (cond)
958#define expect_true(cond) ecb_expect_true (cond)
959#define noinline ecb_noinline
960
469#define inline_size static inline 961#define inline_size ecb_inline
470 962
471#if EV_MINIMAL 963#if EV_FEATURE_CODE
964# define inline_speed ecb_inline
965#else
472# define inline_speed static noinline 966# define inline_speed static noinline
473#else
474# define inline_speed static inline
475#endif 967#endif
476 968
477#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 969#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
478 970
479#if EV_MINPRI == EV_MAXPRI 971#if EV_MINPRI == EV_MAXPRI
… …
492#define ev_active(w) ((W)(w))->active 984#define ev_active(w) ((W)(w))->active
493#define ev_at(w) ((WT)(w))->at 985#define ev_at(w) ((WT)(w))->at
494 986
495#if EV_USE_REALTIME 987#if EV_USE_REALTIME
496/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 988/* sig_atomic_t is used to avoid per-thread variables or locking but still */
497/* giving it a reasonably high chance of working on typical architetcures */ 989/* giving it a reasonably high chance of working on typical architectures */
498static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 990static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
499#endif 991#endif
500 992
501#if EV_USE_MONOTONIC 993#if EV_USE_MONOTONIC
502static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 994static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
504 996
505#ifndef EV_FD_TO_WIN32_HANDLE 997#ifndef EV_FD_TO_WIN32_HANDLE
506# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) 998# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
507#endif 999#endif
508#ifndef EV_WIN32_HANDLE_TO_FD 1000#ifndef EV_WIN32_HANDLE_TO_FD
509# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) 1001# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
510#endif 1002#endif
511#ifndef EV_WIN32_CLOSE_FD 1003#ifndef EV_WIN32_CLOSE_FD
512# define EV_WIN32_CLOSE_FD(fd) close (fd) 1004# define EV_WIN32_CLOSE_FD(fd) close (fd)
513#endif 1005#endif
514 1006
… …
516# include "ev_win32.c" 1008# include "ev_win32.c"
517#endif 1009#endif
518 1010
519/*****************************************************************************/ 1011/*****************************************************************************/
520 1012
1013/* define a suitable floor function (only used by periodics atm) */
1014
1015#if EV_USE_FLOOR
1016# include <math.h>
1017# define ev_floor(v) floor (v)
1018#else
1019
1020#include <float.h>
1021
1022/* a floor() replacement function, should be independent of ev_tstamp type */
1023static ev_tstamp noinline
1024ev_floor (ev_tstamp v)
1025{
1026 /* the choice of shift factor is not terribly important */
1027#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1028 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1029#else
1030 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1031#endif
1032
1033 /* argument too large for an unsigned long? */
1034 if (expect_false (v >= shift))
1035 {
1036 ev_tstamp f;
1037
1038 if (v == v - 1.)
1039 return v; /* very large number */
1040
1041 f = shift * ev_floor (v * (1. / shift));
1042 return f + ev_floor (v - f);
1043 }
1044
1045 /* special treatment for negative args? */
1046 if (expect_false (v < 0.))
1047 {
1048 ev_tstamp f = -ev_floor (-v);
1049
1050 return f - (f == v ? 0 : 1);
1051 }
1052
1053 /* fits into an unsigned long */
1054 return (unsigned long)v;
1055}
1056
1057#endif
1058
1059/*****************************************************************************/
1060
1061#ifdef __linux
1062# include <sys/utsname.h>
1063#endif
1064
1065static unsigned int noinline ecb_cold
1066ev_linux_version (void)
1067{
1068#ifdef __linux
1069 unsigned int v = 0;
1070 struct utsname buf;
1071 int i;
1072 char *p = buf.release;
1073
1074 if (uname (&buf))
1075 return 0;
1076
1077 for (i = 3+1; --i; )
1078 {
1079 unsigned int c = 0;
1080
1081 for (;;)
1082 {
1083 if (*p >= '0' && *p <= '9')
1084 c = c * 10 + *p++ - '0';
1085 else
1086 {
1087 p += *p == '.';
1088 break;
1089 }
1090 }
1091
1092 v = (v << 8) | c;
1093 }
1094
1095 return v;
1096#else
1097 return 0;
1098#endif
1099}
1100
1101/*****************************************************************************/
1102
1103#if EV_AVOID_STDIO
1104static void noinline ecb_cold
1105ev_printerr (const char *msg)
1106{
1107 write (STDERR_FILENO, msg, strlen (msg));
1108}
1109#endif
1110
521static void (*syserr_cb)(const char *msg); 1111static void (*syserr_cb)(const char *msg) EV_THROW;
522 1112
523void 1113void ecb_cold
524ev_set_syserr_cb (void (*cb)(const char *msg)) 1114ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
525{ 1115{
526 syserr_cb = cb; 1116 syserr_cb = cb;
527} 1117}
528 1118
529static void noinline 1119static void noinline ecb_cold
530ev_syserr (const char *msg) 1120ev_syserr (const char *msg)
531{ 1121{
532 if (!msg) 1122 if (!msg)
533 msg = "(libev) system error"; 1123 msg = "(libev) system error";
534 1124
535 if (syserr_cb) 1125 if (syserr_cb)
536 syserr_cb (msg); 1126 syserr_cb (msg);
537 else 1127 else
538 { 1128 {
1129#if EV_AVOID_STDIO
1130 ev_printerr (msg);
1131 ev_printerr (": ");
1132 ev_printerr (strerror (errno));
1133 ev_printerr ("\n");
1134#else
539 perror (msg); 1135 perror (msg);
1136#endif
540 abort (); 1137 abort ();
541 } 1138 }
542} 1139}
543 1140
544static void * 1141static void *
545ev_realloc_emul (void *ptr, long size) 1142ev_realloc_emul (void *ptr, long size)
546{ 1143{
1144#if __GLIBC__
1145 return realloc (ptr, size);
1146#else
547 /* some systems, notably openbsd and darwin, fail to properly 1147 /* some systems, notably openbsd and darwin, fail to properly
548 * implement realloc (x, 0) (as required by both ansi c-98 and 1148 * implement realloc (x, 0) (as required by both ansi c-89 and
549 * the single unix specification, so work around them here. 1149 * the single unix specification, so work around them here.
550 */ 1150 */
551 1151
552 if (size) 1152 if (size)
553 return realloc (ptr, size); 1153 return realloc (ptr, size);
554 1154
555 free (ptr); 1155 free (ptr);
556 return 0; 1156 return 0;
1157#endif
557} 1158}
558 1159
559static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1160static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
560 1161
561void 1162void ecb_cold
562ev_set_allocator (void *(*cb)(void *ptr, long size)) 1163ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
563{ 1164{
564 alloc = cb; 1165 alloc = cb;
565} 1166}
566 1167
567inline_speed void * 1168inline_speed void *
… …
569{ 1170{
570 ptr = alloc (ptr, size); 1171 ptr = alloc (ptr, size);
571 1172
572 if (!ptr && size) 1173 if (!ptr && size)
573 { 1174 {
1175#if EV_AVOID_STDIO
1176 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1177#else
574 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1178 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1179#endif
575 abort (); 1180 abort ();
576 } 1181 }
577 1182
578 return ptr; 1183 return ptr;
579} 1184}
… …
595 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1200 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
596 unsigned char unused; 1201 unsigned char unused;
597#if EV_USE_EPOLL 1202#if EV_USE_EPOLL
598 unsigned int egen; /* generation counter to counter epoll bugs */ 1203 unsigned int egen; /* generation counter to counter epoll bugs */
599#endif 1204#endif
600#if EV_SELECT_IS_WINSOCKET 1205#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
601 SOCKET handle; 1206 SOCKET handle;
1207#endif
1208#if EV_USE_IOCP
1209 OVERLAPPED or, ow;
602#endif 1210#endif
603} ANFD; 1211} ANFD;
604 1212
605/* stores the pending event set for a given watcher */ 1213/* stores the pending event set for a given watcher */
606typedef struct 1214typedef struct
… …
648 #undef VAR 1256 #undef VAR
649 }; 1257 };
650 #include "ev_wrap.h" 1258 #include "ev_wrap.h"
651 1259
652 static struct ev_loop default_loop_struct; 1260 static struct ev_loop default_loop_struct;
653 struct ev_loop *ev_default_loop_ptr; 1261 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
654 1262
655#else 1263#else
656 1264
657 ev_tstamp ev_rt_now; 1265 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
658 #define VAR(name,decl) static decl; 1266 #define VAR(name,decl) static decl;
659 #include "ev_vars.h" 1267 #include "ev_vars.h"
660 #undef VAR 1268 #undef VAR
661 1269
662 static int ev_default_loop_ptr; 1270 static int ev_default_loop_ptr;
663 1271
664#endif 1272#endif
665 1273
666#if EV_MINIMAL < 2 1274#if EV_FEATURE_API
667# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1275# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
668# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1276# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
669# define EV_INVOKE_PENDING invoke_cb (EV_A) 1277# define EV_INVOKE_PENDING invoke_cb (EV_A)
670#else 1278#else
671# define EV_RELEASE_CB (void)0 1279# define EV_RELEASE_CB (void)0
672# define EV_ACQUIRE_CB (void)0 1280# define EV_ACQUIRE_CB (void)0
673# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1281# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
674#endif 1282#endif
675 1283
676#define EVUNLOOP_RECURSE 0x80 1284#define EVBREAK_RECURSE 0x80
677 1285
678/*****************************************************************************/ 1286/*****************************************************************************/
679 1287
680#ifndef EV_HAVE_EV_TIME 1288#ifndef EV_HAVE_EV_TIME
681ev_tstamp 1289ev_tstamp
682ev_time (void) 1290ev_time (void) EV_THROW
683{ 1291{
684#if EV_USE_REALTIME 1292#if EV_USE_REALTIME
685 if (expect_true (have_realtime)) 1293 if (expect_true (have_realtime))
686 { 1294 {
687 struct timespec ts; 1295 struct timespec ts;
… …
711 return ev_time (); 1319 return ev_time ();
712} 1320}
713 1321
714#if EV_MULTIPLICITY 1322#if EV_MULTIPLICITY
715ev_tstamp 1323ev_tstamp
716ev_now (EV_P) 1324ev_now (EV_P) EV_THROW
717{ 1325{
718 return ev_rt_now; 1326 return ev_rt_now;
719} 1327}
720#endif 1328#endif
721 1329
722void 1330void
723ev_sleep (ev_tstamp delay) 1331ev_sleep (ev_tstamp delay) EV_THROW
724{ 1332{
725 if (delay > 0.) 1333 if (delay > 0.)
726 { 1334 {
727#if EV_USE_NANOSLEEP 1335#if EV_USE_NANOSLEEP
728 struct timespec ts; 1336 struct timespec ts;
729 1337
730 ts.tv_sec = (time_t)delay; 1338 EV_TS_SET (ts, delay);
731 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
732
733 nanosleep (&ts, 0); 1339 nanosleep (&ts, 0);
734#elif defined(_WIN32) 1340#elif defined _WIN32
735 Sleep ((unsigned long)(delay * 1e3)); 1341 Sleep ((unsigned long)(delay * 1e3));
736#else 1342#else
737 struct timeval tv; 1343 struct timeval tv;
738 1344
739 tv.tv_sec = (time_t)delay;
740 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
741
742 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1345 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
743 /* something not guaranteed by newer posix versions, but guaranteed */ 1346 /* something not guaranteed by newer posix versions, but guaranteed */
744 /* by older ones */ 1347 /* by older ones */
1348 EV_TV_SET (tv, delay);
745 select (0, 0, 0, 0, &tv); 1349 select (0, 0, 0, 0, &tv);
746#endif 1350#endif
747 } 1351 }
748} 1352}
749 1353
750/*****************************************************************************/ 1354/*****************************************************************************/
751 1355
752#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1356#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
753 1357
754/* find a suitable new size for the given array, */ 1358/* find a suitable new size for the given array, */
755/* hopefully by rounding to a ncie-to-malloc size */ 1359/* hopefully by rounding to a nice-to-malloc size */
756inline_size int 1360inline_size int
757array_nextsize (int elem, int cur, int cnt) 1361array_nextsize (int elem, int cur, int cnt)
758{ 1362{
759 int ncur = cur + 1; 1363 int ncur = cur + 1;
760 1364
761 do 1365 do
762 ncur <<= 1; 1366 ncur <<= 1;
763 while (cnt > ncur); 1367 while (cnt > ncur);
764 1368
765 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1369 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
766 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1370 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
767 { 1371 {
768 ncur *= elem; 1372 ncur *= elem;
769 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1373 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
770 ncur = ncur - sizeof (void *) * 4; 1374 ncur = ncur - sizeof (void *) * 4;
… …
772 } 1376 }
773 1377
774 return ncur; 1378 return ncur;
775} 1379}
776 1380
777static noinline void * 1381static void * noinline ecb_cold
778array_realloc (int elem, void *base, int *cur, int cnt) 1382array_realloc (int elem, void *base, int *cur, int cnt)
779{ 1383{
780 *cur = array_nextsize (elem, *cur, cnt); 1384 *cur = array_nextsize (elem, *cur, cnt);
781 return ev_realloc (base, elem * *cur); 1385 return ev_realloc (base, elem * *cur);
782} 1386}
… …
785 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1389 memset ((void *)(base), 0, sizeof (*(base)) * (count))
786 1390
787#define array_needsize(type,base,cur,cnt,init) \ 1391#define array_needsize(type,base,cur,cnt,init) \
788 if (expect_false ((cnt) > (cur))) \ 1392 if (expect_false ((cnt) > (cur))) \
789 { \ 1393 { \
790 int ocur_ = (cur); \ 1394 int ecb_unused ocur_ = (cur); \
791 (base) = (type *)array_realloc \ 1395 (base) = (type *)array_realloc \
792 (sizeof (type), (base), &(cur), (cnt)); \ 1396 (sizeof (type), (base), &(cur), (cnt)); \
793 init ((base) + (ocur_), (cur) - ocur_); \ 1397 init ((base) + (ocur_), (cur) - ocur_); \
794 } 1398 }
795 1399
… …
813pendingcb (EV_P_ ev_prepare *w, int revents) 1417pendingcb (EV_P_ ev_prepare *w, int revents)
814{ 1418{
815} 1419}
816 1420
817void noinline 1421void noinline
818ev_feed_event (EV_P_ void *w, int revents) 1422ev_feed_event (EV_P_ void *w, int revents) EV_THROW
819{ 1423{
820 W w_ = (W)w; 1424 W w_ = (W)w;
821 int pri = ABSPRI (w_); 1425 int pri = ABSPRI (w_);
822 1426
823 if (expect_false (w_->pending)) 1427 if (expect_false (w_->pending))
… …
827 w_->pending = ++pendingcnt [pri]; 1431 w_->pending = ++pendingcnt [pri];
828 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1432 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
829 pendings [pri][w_->pending - 1].w = w_; 1433 pendings [pri][w_->pending - 1].w = w_;
830 pendings [pri][w_->pending - 1].events = revents; 1434 pendings [pri][w_->pending - 1].events = revents;
831 } 1435 }
1436
1437 pendingpri = NUMPRI - 1;
832} 1438}
833 1439
834inline_speed void 1440inline_speed void
835feed_reverse (EV_P_ W w) 1441feed_reverse (EV_P_ W w)
836{ 1442{
… …
856} 1462}
857 1463
858/*****************************************************************************/ 1464/*****************************************************************************/
859 1465
860inline_speed void 1466inline_speed void
861fd_event_nc (EV_P_ int fd, int revents) 1467fd_event_nocheck (EV_P_ int fd, int revents)
862{ 1468{
863 ANFD *anfd = anfds + fd; 1469 ANFD *anfd = anfds + fd;
864 ev_io *w; 1470 ev_io *w;
865 1471
866 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1472 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
878fd_event (EV_P_ int fd, int revents) 1484fd_event (EV_P_ int fd, int revents)
879{ 1485{
880 ANFD *anfd = anfds + fd; 1486 ANFD *anfd = anfds + fd;
881 1487
882 if (expect_true (!anfd->reify)) 1488 if (expect_true (!anfd->reify))
883 fd_event_nc (EV_A_ fd, revents); 1489 fd_event_nocheck (EV_A_ fd, revents);
884} 1490}
885 1491
886void 1492void
887ev_feed_fd_event (EV_P_ int fd, int revents) 1493ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
888{ 1494{
889 if (fd >= 0 && fd < anfdmax) 1495 if (fd >= 0 && fd < anfdmax)
890 fd_event_nc (EV_A_ fd, revents); 1496 fd_event_nocheck (EV_A_ fd, revents);
891} 1497}
892 1498
893/* make sure the external fd watch events are in-sync */ 1499/* make sure the external fd watch events are in-sync */
894/* with the kernel/libev internal state */ 1500/* with the kernel/libev internal state */
895inline_size void 1501inline_size void
896fd_reify (EV_P) 1502fd_reify (EV_P)
897{ 1503{
898 int i; 1504 int i;
899 1505
1506#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1507 for (i = 0; i < fdchangecnt; ++i)
1508 {
1509 int fd = fdchanges [i];
1510 ANFD *anfd = anfds + fd;
1511
1512 if (anfd->reify & EV__IOFDSET && anfd->head)
1513 {
1514 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1515
1516 if (handle != anfd->handle)
1517 {
1518 unsigned long arg;
1519
1520 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1521
1522 /* handle changed, but fd didn't - we need to do it in two steps */
1523 backend_modify (EV_A_ fd, anfd->events, 0);
1524 anfd->events = 0;
1525 anfd->handle = handle;
1526 }
1527 }
1528 }
1529#endif
1530
900 for (i = 0; i < fdchangecnt; ++i) 1531 for (i = 0; i < fdchangecnt; ++i)
901 { 1532 {
902 int fd = fdchanges [i]; 1533 int fd = fdchanges [i];
903 ANFD *anfd = anfds + fd; 1534 ANFD *anfd = anfds + fd;
904 ev_io *w; 1535 ev_io *w;
905 1536
906 unsigned char events = 0; 1537 unsigned char o_events = anfd->events;
1538 unsigned char o_reify = anfd->reify;
907 1539
908 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1540 anfd->reify = 0;
909 events |= (unsigned char)w->events;
910 1541
911#if EV_SELECT_IS_WINSOCKET 1542 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
912 if (events)
913 { 1543 {
914 unsigned long arg; 1544 anfd->events = 0;
915 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1545
916 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1546 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1547 anfd->events |= (unsigned char)w->events;
1548
1549 if (o_events != anfd->events)
1550 o_reify = EV__IOFDSET; /* actually |= */
917 } 1551 }
918#endif
919 1552
920 { 1553 if (o_reify & EV__IOFDSET)
921 unsigned char o_events = anfd->events;
922 unsigned char o_reify = anfd->reify;
923
924 anfd->reify = 0;
925 anfd->events = events;
926
927 if (o_events != events || o_reify & EV__IOFDSET)
928 backend_modify (EV_A_ fd, o_events, events); 1554 backend_modify (EV_A_ fd, o_events, anfd->events);
929 }
930 } 1555 }
931 1556
932 fdchangecnt = 0; 1557 fdchangecnt = 0;
933} 1558}
934 1559
… …
946 fdchanges [fdchangecnt - 1] = fd; 1571 fdchanges [fdchangecnt - 1] = fd;
947 } 1572 }
948} 1573}
949 1574
950/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1575/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
951inline_speed void 1576inline_speed void ecb_cold
952fd_kill (EV_P_ int fd) 1577fd_kill (EV_P_ int fd)
953{ 1578{
954 ev_io *w; 1579 ev_io *w;
955 1580
956 while ((w = (ev_io *)anfds [fd].head)) 1581 while ((w = (ev_io *)anfds [fd].head))
… …
958 ev_io_stop (EV_A_ w); 1583 ev_io_stop (EV_A_ w);
959 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1584 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
960 } 1585 }
961} 1586}
962 1587
963/* check whether the given fd is atcually valid, for error recovery */ 1588/* check whether the given fd is actually valid, for error recovery */
964inline_size int 1589inline_size int ecb_cold
965fd_valid (int fd) 1590fd_valid (int fd)
966{ 1591{
967#ifdef _WIN32 1592#ifdef _WIN32
968 return _get_osfhandle (fd) != -1; 1593 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
969#else 1594#else
970 return fcntl (fd, F_GETFD) != -1; 1595 return fcntl (fd, F_GETFD) != -1;
971#endif 1596#endif
972} 1597}
973 1598
974/* called on EBADF to verify fds */ 1599/* called on EBADF to verify fds */
975static void noinline 1600static void noinline ecb_cold
976fd_ebadf (EV_P) 1601fd_ebadf (EV_P)
977{ 1602{
978 int fd; 1603 int fd;
979 1604
980 for (fd = 0; fd < anfdmax; ++fd) 1605 for (fd = 0; fd < anfdmax; ++fd)
… …
982 if (!fd_valid (fd) && errno == EBADF) 1607 if (!fd_valid (fd) && errno == EBADF)
983 fd_kill (EV_A_ fd); 1608 fd_kill (EV_A_ fd);
984} 1609}
985 1610
986/* called on ENOMEM in select/poll to kill some fds and retry */ 1611/* called on ENOMEM in select/poll to kill some fds and retry */
987static void noinline 1612static void noinline ecb_cold
988fd_enomem (EV_P) 1613fd_enomem (EV_P)
989{ 1614{
990 int fd; 1615 int fd;
991 1616
992 for (fd = anfdmax; fd--; ) 1617 for (fd = anfdmax; fd--; )
… …
1010 anfds [fd].emask = 0; 1635 anfds [fd].emask = 0;
1011 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1636 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1012 } 1637 }
1013} 1638}
1014 1639
1640/* used to prepare libev internal fd's */
1641/* this is not fork-safe */
1642inline_speed void
1643fd_intern (int fd)
1644{
1645#ifdef _WIN32
1646 unsigned long arg = 1;
1647 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1648#else
1649 fcntl (fd, F_SETFD, FD_CLOEXEC);
1650 fcntl (fd, F_SETFL, O_NONBLOCK);
1651#endif
1652}
1653
1015/*****************************************************************************/ 1654/*****************************************************************************/
1016 1655
1017/* 1656/*
1018 * the heap functions want a real array index. array index 0 uis guaranteed to not 1657 * the heap functions want a real array index. array index 0 is guaranteed to not
1019 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1658 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1020 * the branching factor of the d-tree. 1659 * the branching factor of the d-tree.
1021 */ 1660 */
1022 1661
1023/* 1662/*
… …
1171 1810
1172static ANSIG signals [EV_NSIG - 1]; 1811static ANSIG signals [EV_NSIG - 1];
1173 1812
1174/*****************************************************************************/ 1813/*****************************************************************************/
1175 1814
1176/* used to prepare libev internal fd's */ 1815#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1177/* this is not fork-safe */
1178inline_speed void
1179fd_intern (int fd)
1180{
1181#ifdef _WIN32
1182 unsigned long arg = 1;
1183 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1184#else
1185 fcntl (fd, F_SETFD, FD_CLOEXEC);
1186 fcntl (fd, F_SETFL, O_NONBLOCK);
1187#endif
1188}
1189 1816
1190static void noinline 1817static void noinline ecb_cold
1191evpipe_init (EV_P) 1818evpipe_init (EV_P)
1192{ 1819{
1193 if (!ev_is_active (&pipe_w)) 1820 if (!ev_is_active (&pipe_w))
1194 { 1821 {
1195#if EV_USE_EVENTFD 1822# if EV_USE_EVENTFD
1196 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1823 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1197 if (evfd < 0 && errno == EINVAL) 1824 if (evfd < 0 && errno == EINVAL)
1198 evfd = eventfd (0, 0); 1825 evfd = eventfd (0, 0);
1199 1826
1200 if (evfd >= 0) 1827 if (evfd >= 0)
… …
1202 evpipe [0] = -1; 1829 evpipe [0] = -1;
1203 fd_intern (evfd); /* doing it twice doesn't hurt */ 1830 fd_intern (evfd); /* doing it twice doesn't hurt */
1204 ev_io_set (&pipe_w, evfd, EV_READ); 1831 ev_io_set (&pipe_w, evfd, EV_READ);
1205 } 1832 }
1206 else 1833 else
1207#endif 1834# endif
1208 { 1835 {
1209 while (pipe (evpipe)) 1836 while (pipe (evpipe))
1210 ev_syserr ("(libev) error creating signal/async pipe"); 1837 ev_syserr ("(libev) error creating signal/async pipe");
1211 1838
1212 fd_intern (evpipe [0]); 1839 fd_intern (evpipe [0]);
… …
1217 ev_io_start (EV_A_ &pipe_w); 1844 ev_io_start (EV_A_ &pipe_w);
1218 ev_unref (EV_A); /* watcher should not keep loop alive */ 1845 ev_unref (EV_A); /* watcher should not keep loop alive */
1219 } 1846 }
1220} 1847}
1221 1848
1222inline_size void 1849inline_speed void
1223evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1850evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1224{ 1851{
1225 if (!*flag) 1852 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1853
1854 if (expect_true (*flag))
1855 return;
1856
1857 *flag = 1;
1858
1859 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1860
1861 pipe_write_skipped = 1;
1862
1863 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1864
1865 if (pipe_write_wanted)
1226 { 1866 {
1867 int old_errno;
1868
1869 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1870
1227 int old_errno = errno; /* save errno because write might clobber it */ 1871 old_errno = errno; /* save errno because write will clobber it */
1228
1229 *flag = 1;
1230 1872
1231#if EV_USE_EVENTFD 1873#if EV_USE_EVENTFD
1232 if (evfd >= 0) 1874 if (evfd >= 0)
1233 { 1875 {
1234 uint64_t counter = 1; 1876 uint64_t counter = 1;
1235 write (evfd, &counter, sizeof (uint64_t)); 1877 write (evfd, &counter, sizeof (uint64_t));
1236 } 1878 }
1237 else 1879 else
1238#endif 1880#endif
1881 {
1882#ifdef _WIN32
1883 WSABUF buf;
1884 DWORD sent;
1885 buf.buf = &buf;
1886 buf.len = 1;
1887 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1888#else
1239 write (evpipe [1], &old_errno, 1); 1889 write (evpipe [1], &(evpipe [1]), 1);
1890#endif
1891 }
1240 1892
1241 errno = old_errno; 1893 errno = old_errno;
1242 } 1894 }
1243} 1895}
1244 1896
… …
1247static void 1899static void
1248pipecb (EV_P_ ev_io *iow, int revents) 1900pipecb (EV_P_ ev_io *iow, int revents)
1249{ 1901{
1250 int i; 1902 int i;
1251 1903
1904 if (revents & EV_READ)
1905 {
1252#if EV_USE_EVENTFD 1906#if EV_USE_EVENTFD
1253 if (evfd >= 0) 1907 if (evfd >= 0)
1254 { 1908 {
1255 uint64_t counter; 1909 uint64_t counter;
1256 read (evfd, &counter, sizeof (uint64_t)); 1910 read (evfd, &counter, sizeof (uint64_t));
1257 } 1911 }
1258 else 1912 else
1259#endif 1913#endif
1260 { 1914 {
1261 char dummy; 1915 char dummy[4];
1916#ifdef _WIN32
1917 WSABUF buf;
1918 DWORD recvd;
1919 buf.buf = dummy;
1920 buf.len = sizeof (dummy);
1921 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0);
1922#else
1262 read (evpipe [0], &dummy, 1); 1923 read (evpipe [0], &dummy, sizeof (dummy));
1924#endif
1925 }
1263 } 1926 }
1264 1927
1928 pipe_write_skipped = 0;
1929
1930 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1931
1932#if EV_SIGNAL_ENABLE
1265 if (sig_pending) 1933 if (sig_pending)
1266 { 1934 {
1267 sig_pending = 0; 1935 sig_pending = 0;
1936
1937 ECB_MEMORY_FENCE_RELEASE;
1268 1938
1269 for (i = EV_NSIG - 1; i--; ) 1939 for (i = EV_NSIG - 1; i--; )
1270 if (expect_false (signals [i].pending)) 1940 if (expect_false (signals [i].pending))
1271 ev_feed_signal_event (EV_A_ i + 1); 1941 ev_feed_signal_event (EV_A_ i + 1);
1272 } 1942 }
1943#endif
1273 1944
1274#if EV_ASYNC_ENABLE 1945#if EV_ASYNC_ENABLE
1275 if (async_pending) 1946 if (async_pending)
1276 { 1947 {
1277 async_pending = 0; 1948 async_pending = 0;
1949
1950 ECB_MEMORY_FENCE_RELEASE;
1278 1951
1279 for (i = asynccnt; i--; ) 1952 for (i = asynccnt; i--; )
1280 if (asyncs [i]->sent) 1953 if (asyncs [i]->sent)
1281 { 1954 {
1282 asyncs [i]->sent = 0; 1955 asyncs [i]->sent = 0;
… …
1286#endif 1959#endif
1287} 1960}
1288 1961
1289/*****************************************************************************/ 1962/*****************************************************************************/
1290 1963
1964void
1965ev_feed_signal (int signum) EV_THROW
1966{
1967#if EV_MULTIPLICITY
1968 EV_P = signals [signum - 1].loop;
1969
1970 if (!EV_A)
1971 return;
1972#endif
1973
1974 if (!ev_active (&pipe_w))
1975 return;
1976
1977 signals [signum - 1].pending = 1;
1978 evpipe_write (EV_A_ &sig_pending);
1979}
1980
1291static void 1981static void
1292ev_sighandler (int signum) 1982ev_sighandler (int signum)
1293{ 1983{
1294#if EV_MULTIPLICITY
1295 EV_P = signals [signum - 1].loop;
1296#endif
1297
1298#if _WIN32 1984#ifdef _WIN32
1299 signal (signum, ev_sighandler); 1985 signal (signum, ev_sighandler);
1300#endif 1986#endif
1301 1987
1302 signals [signum - 1].pending = 1; 1988 ev_feed_signal (signum);
1303 evpipe_write (EV_A_ &sig_pending);
1304} 1989}
1305 1990
1306void noinline 1991void noinline
1307ev_feed_signal_event (EV_P_ int signum) 1992ev_feed_signal_event (EV_P_ int signum) EV_THROW
1308{ 1993{
1309 WL w; 1994 WL w;
1310 1995
1311 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1996 if (expect_false (signum <= 0 || signum > EV_NSIG))
1312 return; 1997 return;
… …
1345 break; 2030 break;
1346 } 2031 }
1347} 2032}
1348#endif 2033#endif
1349 2034
2035#endif
2036
1350/*****************************************************************************/ 2037/*****************************************************************************/
1351 2038
2039#if EV_CHILD_ENABLE
1352static WL childs [EV_PID_HASHSIZE]; 2040static WL childs [EV_PID_HASHSIZE];
1353
1354#ifndef _WIN32
1355 2041
1356static ev_signal childev; 2042static ev_signal childev;
1357 2043
1358#ifndef WIFCONTINUED 2044#ifndef WIFCONTINUED
1359# define WIFCONTINUED(status) 0 2045# define WIFCONTINUED(status) 0
… …
1364child_reap (EV_P_ int chain, int pid, int status) 2050child_reap (EV_P_ int chain, int pid, int status)
1365{ 2051{
1366 ev_child *w; 2052 ev_child *w;
1367 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2053 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1368 2054
1369 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2055 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1370 { 2056 {
1371 if ((w->pid == pid || !w->pid) 2057 if ((w->pid == pid || !w->pid)
1372 && (!traced || (w->flags & 1))) 2058 && (!traced || (w->flags & 1)))
1373 { 2059 {
1374 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2060 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1399 /* make sure we are called again until all children have been reaped */ 2085 /* make sure we are called again until all children have been reaped */
1400 /* we need to do it this way so that the callback gets called before we continue */ 2086 /* we need to do it this way so that the callback gets called before we continue */
1401 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2087 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1402 2088
1403 child_reap (EV_A_ pid, pid, status); 2089 child_reap (EV_A_ pid, pid, status);
1404 if (EV_PID_HASHSIZE > 1) 2090 if ((EV_PID_HASHSIZE) > 1)
1405 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2091 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1406} 2092}
1407 2093
1408#endif 2094#endif
1409 2095
1410/*****************************************************************************/ 2096/*****************************************************************************/
1411 2097
2098#if EV_USE_IOCP
2099# include "ev_iocp.c"
2100#endif
1412#if EV_USE_PORT 2101#if EV_USE_PORT
1413# include "ev_port.c" 2102# include "ev_port.c"
1414#endif 2103#endif
1415#if EV_USE_KQUEUE 2104#if EV_USE_KQUEUE
1416# include "ev_kqueue.c" 2105# include "ev_kqueue.c"
… …
1423#endif 2112#endif
1424#if EV_USE_SELECT 2113#if EV_USE_SELECT
1425# include "ev_select.c" 2114# include "ev_select.c"
1426#endif 2115#endif
1427 2116
1428int 2117int ecb_cold
1429ev_version_major (void) 2118ev_version_major (void) EV_THROW
1430{ 2119{
1431 return EV_VERSION_MAJOR; 2120 return EV_VERSION_MAJOR;
1432} 2121}
1433 2122
1434int 2123int ecb_cold
1435ev_version_minor (void) 2124ev_version_minor (void) EV_THROW
1436{ 2125{
1437 return EV_VERSION_MINOR; 2126 return EV_VERSION_MINOR;
1438} 2127}
1439 2128
1440/* return true if we are running with elevated privileges and should ignore env variables */ 2129/* return true if we are running with elevated privileges and should ignore env variables */
1441int inline_size 2130int inline_size ecb_cold
1442enable_secure (void) 2131enable_secure (void)
1443{ 2132{
1444#ifdef _WIN32 2133#ifdef _WIN32
1445 return 0; 2134 return 0;
1446#else 2135#else
1447 return getuid () != geteuid () 2136 return getuid () != geteuid ()
1448 || getgid () != getegid (); 2137 || getgid () != getegid ();
1449#endif 2138#endif
1450} 2139}
1451 2140
1452unsigned int 2141unsigned int ecb_cold
1453ev_supported_backends (void) 2142ev_supported_backends (void) EV_THROW
1454{ 2143{
1455 unsigned int flags = 0; 2144 unsigned int flags = 0;
1456 2145
1457 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2146 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1458 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2147 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1461 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2150 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1462 2151
1463 return flags; 2152 return flags;
1464} 2153}
1465 2154
1466unsigned int 2155unsigned int ecb_cold
1467ev_recommended_backends (void) 2156ev_recommended_backends (void) EV_THROW
1468{ 2157{
1469 unsigned int flags = ev_supported_backends (); 2158 unsigned int flags = ev_supported_backends ();
1470 2159
1471#ifndef __NetBSD__ 2160#ifndef __NetBSD__
1472 /* kqueue is borked on everything but netbsd apparently */ 2161 /* kqueue is borked on everything but netbsd apparently */
… …
1476#ifdef __APPLE__ 2165#ifdef __APPLE__
1477 /* only select works correctly on that "unix-certified" platform */ 2166 /* only select works correctly on that "unix-certified" platform */
1478 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2167 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1479 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2168 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1480#endif 2169#endif
2170#ifdef __FreeBSD__
2171 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2172#endif
1481 2173
1482 return flags; 2174 return flags;
1483} 2175}
1484 2176
2177unsigned int ecb_cold
2178ev_embeddable_backends (void) EV_THROW
2179{
2180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2181
2182 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2183 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2184 flags &= ~EVBACKEND_EPOLL;
2185
2186 return flags;
2187}
2188
1485unsigned int 2189unsigned int
1486ev_embeddable_backends (void) 2190ev_backend (EV_P) EV_THROW
1487{ 2191{
1488 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2192 return backend;
1489
1490 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1491 /* please fix it and tell me how to detect the fix */
1492 flags &= ~EVBACKEND_EPOLL;
1493
1494 return flags;
1495} 2193}
1496 2194
2195#if EV_FEATURE_API
1497unsigned int 2196unsigned int
1498ev_backend (EV_P) 2197ev_iteration (EV_P) EV_THROW
1499{ 2198{
1500 return backend; 2199 return loop_count;
1501} 2200}
1502 2201
1503#if EV_MINIMAL < 2
1504unsigned int 2202unsigned int
1505ev_loop_count (EV_P) 2203ev_depth (EV_P) EV_THROW
1506{
1507 return loop_count;
1508}
1509
1510unsigned int
1511ev_loop_depth (EV_P)
1512{ 2204{
1513 return loop_depth; 2205 return loop_depth;
1514} 2206}
1515 2207
1516void 2208void
1517ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2209ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1518{ 2210{
1519 io_blocktime = interval; 2211 io_blocktime = interval;
1520} 2212}
1521 2213
1522void 2214void
1523ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2215ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1524{ 2216{
1525 timeout_blocktime = interval; 2217 timeout_blocktime = interval;
1526} 2218}
1527 2219
1528void 2220void
1529ev_set_userdata (EV_P_ void *data) 2221ev_set_userdata (EV_P_ void *data) EV_THROW
1530{ 2222{
1531 userdata = data; 2223 userdata = data;
1532} 2224}
1533 2225
1534void * 2226void *
1535ev_userdata (EV_P) 2227ev_userdata (EV_P) EV_THROW
1536{ 2228{
1537 return userdata; 2229 return userdata;
1538} 2230}
1539 2231
2232void
1540void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2233ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1541{ 2234{
1542 invoke_cb = invoke_pending_cb; 2235 invoke_cb = invoke_pending_cb;
1543} 2236}
1544 2237
2238void
1545void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2239ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1546{ 2240{
1547 release_cb = release; 2241 release_cb = release;
1548 acquire_cb = acquire; 2242 acquire_cb = acquire;
1549} 2243}
1550#endif 2244#endif
1551 2245
1552/* initialise a loop structure, must be zero-initialised */ 2246/* initialise a loop structure, must be zero-initialised */
1553static void noinline 2247static void noinline ecb_cold
1554loop_init (EV_P_ unsigned int flags) 2248loop_init (EV_P_ unsigned int flags) EV_THROW
1555{ 2249{
1556 if (!backend) 2250 if (!backend)
1557 { 2251 {
2252 origflags = flags;
2253
1558#if EV_USE_REALTIME 2254#if EV_USE_REALTIME
1559 if (!have_realtime) 2255 if (!have_realtime)
1560 { 2256 {
1561 struct timespec ts; 2257 struct timespec ts;
1562 2258
… …
1584 if (!(flags & EVFLAG_NOENV) 2280 if (!(flags & EVFLAG_NOENV)
1585 && !enable_secure () 2281 && !enable_secure ()
1586 && getenv ("LIBEV_FLAGS")) 2282 && getenv ("LIBEV_FLAGS"))
1587 flags = atoi (getenv ("LIBEV_FLAGS")); 2283 flags = atoi (getenv ("LIBEV_FLAGS"));
1588 2284
1589 ev_rt_now = ev_time (); 2285 ev_rt_now = ev_time ();
1590 mn_now = get_clock (); 2286 mn_now = get_clock ();
1591 now_floor = mn_now; 2287 now_floor = mn_now;
1592 rtmn_diff = ev_rt_now - mn_now; 2288 rtmn_diff = ev_rt_now - mn_now;
1593#if EV_MINIMAL < 2 2289#if EV_FEATURE_API
1594 invoke_cb = ev_invoke_pending; 2290 invoke_cb = ev_invoke_pending;
1595#endif 2291#endif
1596 2292
1597 io_blocktime = 0.; 2293 io_blocktime = 0.;
1598 timeout_blocktime = 0.; 2294 timeout_blocktime = 0.;
1599 backend = 0; 2295 backend = 0;
1600 backend_fd = -1; 2296 backend_fd = -1;
1601 sig_pending = 0; 2297 sig_pending = 0;
1602#if EV_ASYNC_ENABLE 2298#if EV_ASYNC_ENABLE
1603 async_pending = 0; 2299 async_pending = 0;
1604#endif 2300#endif
2301 pipe_write_skipped = 0;
2302 pipe_write_wanted = 0;
1605#if EV_USE_INOTIFY 2303#if EV_USE_INOTIFY
1606 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2304 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1607#endif 2305#endif
1608#if EV_USE_SIGNALFD 2306#if EV_USE_SIGNALFD
1609 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; 2307 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1610#endif 2308#endif
1611 2309
1612 if (!(flags & 0x0000ffffU)) 2310 if (!(flags & EVBACKEND_MASK))
1613 flags |= ev_recommended_backends (); 2311 flags |= ev_recommended_backends ();
1614 2312
2313#if EV_USE_IOCP
2314 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2315#endif
1615#if EV_USE_PORT 2316#if EV_USE_PORT
1616 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1617#endif 2318#endif
1618#if EV_USE_KQUEUE 2319#if EV_USE_KQUEUE
1619 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1628 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2329 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1629#endif 2330#endif
1630 2331
1631 ev_prepare_init (&pending_w, pendingcb); 2332 ev_prepare_init (&pending_w, pendingcb);
1632 2333
2334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1633 ev_init (&pipe_w, pipecb); 2335 ev_init (&pipe_w, pipecb);
1634 ev_set_priority (&pipe_w, EV_MAXPRI); 2336 ev_set_priority (&pipe_w, EV_MAXPRI);
2337#endif
1635 } 2338 }
1636} 2339}
1637 2340
1638/* free up a loop structure */ 2341/* free up a loop structure */
1639static void noinline 2342void ecb_cold
1640loop_destroy (EV_P) 2343ev_loop_destroy (EV_P)
1641{ 2344{
1642 int i; 2345 int i;
2346
2347#if EV_MULTIPLICITY
2348 /* mimic free (0) */
2349 if (!EV_A)
2350 return;
2351#endif
2352
2353#if EV_CLEANUP_ENABLE
2354 /* queue cleanup watchers (and execute them) */
2355 if (expect_false (cleanupcnt))
2356 {
2357 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2358 EV_INVOKE_PENDING;
2359 }
2360#endif
2361
2362#if EV_CHILD_ENABLE
2363 if (ev_is_active (&childev))
2364 {
2365 ev_ref (EV_A); /* child watcher */
2366 ev_signal_stop (EV_A_ &childev);
2367 }
2368#endif
1643 2369
1644 if (ev_is_active (&pipe_w)) 2370 if (ev_is_active (&pipe_w))
1645 { 2371 {
1646 /*ev_ref (EV_A);*/ 2372 /*ev_ref (EV_A);*/
1647 /*ev_io_stop (EV_A_ &pipe_w);*/ 2373 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1669#endif 2395#endif
1670 2396
1671 if (backend_fd >= 0) 2397 if (backend_fd >= 0)
1672 close (backend_fd); 2398 close (backend_fd);
1673 2399
2400#if EV_USE_IOCP
2401 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2402#endif
1674#if EV_USE_PORT 2403#if EV_USE_PORT
1675 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2404 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1676#endif 2405#endif
1677#if EV_USE_KQUEUE 2406#if EV_USE_KQUEUE
1678 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2407 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1705 array_free (periodic, EMPTY); 2434 array_free (periodic, EMPTY);
1706#endif 2435#endif
1707#if EV_FORK_ENABLE 2436#if EV_FORK_ENABLE
1708 array_free (fork, EMPTY); 2437 array_free (fork, EMPTY);
1709#endif 2438#endif
2439#if EV_CLEANUP_ENABLE
2440 array_free (cleanup, EMPTY);
2441#endif
1710 array_free (prepare, EMPTY); 2442 array_free (prepare, EMPTY);
1711 array_free (check, EMPTY); 2443 array_free (check, EMPTY);
1712#if EV_ASYNC_ENABLE 2444#if EV_ASYNC_ENABLE
1713 array_free (async, EMPTY); 2445 array_free (async, EMPTY);
1714#endif 2446#endif
1715 2447
1716 backend = 0; 2448 backend = 0;
2449
2450#if EV_MULTIPLICITY
2451 if (ev_is_default_loop (EV_A))
2452#endif
2453 ev_default_loop_ptr = 0;
2454#if EV_MULTIPLICITY
2455 else
2456 ev_free (EV_A);
2457#endif
1717} 2458}
1718 2459
1719#if EV_USE_INOTIFY 2460#if EV_USE_INOTIFY
1720inline_size void infy_fork (EV_P); 2461inline_size void infy_fork (EV_P);
1721#endif 2462#endif
… …
1736 infy_fork (EV_A); 2477 infy_fork (EV_A);
1737#endif 2478#endif
1738 2479
1739 if (ev_is_active (&pipe_w)) 2480 if (ev_is_active (&pipe_w))
1740 { 2481 {
1741 /* this "locks" the handlers against writing to the pipe */ 2482 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1742 /* while we modify the fd vars */
1743 sig_pending = 1;
1744#if EV_ASYNC_ENABLE
1745 async_pending = 1;
1746#endif
1747 2483
1748 ev_ref (EV_A); 2484 ev_ref (EV_A);
1749 ev_io_stop (EV_A_ &pipe_w); 2485 ev_io_stop (EV_A_ &pipe_w);
1750 2486
1751#if EV_USE_EVENTFD 2487#if EV_USE_EVENTFD
… …
1757 { 2493 {
1758 EV_WIN32_CLOSE_FD (evpipe [0]); 2494 EV_WIN32_CLOSE_FD (evpipe [0]);
1759 EV_WIN32_CLOSE_FD (evpipe [1]); 2495 EV_WIN32_CLOSE_FD (evpipe [1]);
1760 } 2496 }
1761 2497
2498#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1762 evpipe_init (EV_A); 2499 evpipe_init (EV_A);
1763 /* now iterate over everything, in case we missed something */ 2500 /* now iterate over everything, in case we missed something */
1764 pipecb (EV_A_ &pipe_w, EV_READ); 2501 pipecb (EV_A_ &pipe_w, EV_READ);
2502#endif
1765 } 2503 }
1766 2504
1767 postfork = 0; 2505 postfork = 0;
1768} 2506}
1769 2507
1770#if EV_MULTIPLICITY 2508#if EV_MULTIPLICITY
1771 2509
1772struct ev_loop * 2510struct ev_loop * ecb_cold
1773ev_loop_new (unsigned int flags) 2511ev_loop_new (unsigned int flags) EV_THROW
1774{ 2512{
1775 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2513 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1776 2514
1777 memset (EV_A, 0, sizeof (struct ev_loop)); 2515 memset (EV_A, 0, sizeof (struct ev_loop));
1778 loop_init (EV_A_ flags); 2516 loop_init (EV_A_ flags);
1779 2517
1780 if (ev_backend (EV_A)) 2518 if (ev_backend (EV_A))
1781 return EV_A; 2519 return EV_A;
1782 2520
2521 ev_free (EV_A);
1783 return 0; 2522 return 0;
1784} 2523}
1785 2524
1786void
1787ev_loop_destroy (EV_P)
1788{
1789 loop_destroy (EV_A);
1790 ev_free (loop);
1791}
1792
1793void
1794ev_loop_fork (EV_P)
1795{
1796 postfork = 1; /* must be in line with ev_default_fork */
1797}
1798#endif /* multiplicity */ 2525#endif /* multiplicity */
1799 2526
1800#if EV_VERIFY 2527#if EV_VERIFY
1801static void noinline 2528static void noinline ecb_cold
1802verify_watcher (EV_P_ W w) 2529verify_watcher (EV_P_ W w)
1803{ 2530{
1804 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2531 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1805 2532
1806 if (w->pending) 2533 if (w->pending)
1807 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2534 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1808} 2535}
1809 2536
1810static void noinline 2537static void noinline ecb_cold
1811verify_heap (EV_P_ ANHE *heap, int N) 2538verify_heap (EV_P_ ANHE *heap, int N)
1812{ 2539{
1813 int i; 2540 int i;
1814 2541
1815 for (i = HEAP0; i < N + HEAP0; ++i) 2542 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1820 2547
1821 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2548 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1822 } 2549 }
1823} 2550}
1824 2551
1825static void noinline 2552static void noinline ecb_cold
1826array_verify (EV_P_ W *ws, int cnt) 2553array_verify (EV_P_ W *ws, int cnt)
1827{ 2554{
1828 while (cnt--) 2555 while (cnt--)
1829 { 2556 {
1830 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2557 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1831 verify_watcher (EV_A_ ws [cnt]); 2558 verify_watcher (EV_A_ ws [cnt]);
1832 } 2559 }
1833} 2560}
1834#endif 2561#endif
1835 2562
1836#if EV_MINIMAL < 2 2563#if EV_FEATURE_API
1837void 2564void ecb_cold
1838ev_loop_verify (EV_P) 2565ev_verify (EV_P) EV_THROW
1839{ 2566{
1840#if EV_VERIFY 2567#if EV_VERIFY
1841 int i; 2568 int i, j;
1842 WL w; 2569 WL w, w2;
1843 2570
1844 assert (activecnt >= -1); 2571 assert (activecnt >= -1);
1845 2572
1846 assert (fdchangemax >= fdchangecnt); 2573 assert (fdchangemax >= fdchangecnt);
1847 for (i = 0; i < fdchangecnt; ++i) 2574 for (i = 0; i < fdchangecnt; ++i)
1848 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2575 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1849 2576
1850 assert (anfdmax >= 0); 2577 assert (anfdmax >= 0);
1851 for (i = 0; i < anfdmax; ++i) 2578 for (i = j = 0; i < anfdmax; ++i)
1852 for (w = anfds [i].head; w; w = w->next) 2579 for (w = w2 = anfds [i].head; w; w = w->next)
1853 { 2580 {
1854 verify_watcher (EV_A_ (W)w); 2581 verify_watcher (EV_A_ (W)w);
2582
2583 if (j++ & 1)
2584 {
2585 assert (("libev: io watcher list contains a loop", w != w2));
2586 w2 = w2->next;
2587 }
2588
1855 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2589 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1856 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2590 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1857 } 2591 }
1858 2592
1859 assert (timermax >= timercnt); 2593 assert (timermax >= timercnt);
… …
1877#if EV_FORK_ENABLE 2611#if EV_FORK_ENABLE
1878 assert (forkmax >= forkcnt); 2612 assert (forkmax >= forkcnt);
1879 array_verify (EV_A_ (W *)forks, forkcnt); 2613 array_verify (EV_A_ (W *)forks, forkcnt);
1880#endif 2614#endif
1881 2615
2616#if EV_CLEANUP_ENABLE
2617 assert (cleanupmax >= cleanupcnt);
2618 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2619#endif
2620
1882#if EV_ASYNC_ENABLE 2621#if EV_ASYNC_ENABLE
1883 assert (asyncmax >= asynccnt); 2622 assert (asyncmax >= asynccnt);
1884 array_verify (EV_A_ (W *)asyncs, asynccnt); 2623 array_verify (EV_A_ (W *)asyncs, asynccnt);
1885#endif 2624#endif
1886 2625
2626#if EV_PREPARE_ENABLE
1887 assert (preparemax >= preparecnt); 2627 assert (preparemax >= preparecnt);
1888 array_verify (EV_A_ (W *)prepares, preparecnt); 2628 array_verify (EV_A_ (W *)prepares, preparecnt);
2629#endif
1889 2630
2631#if EV_CHECK_ENABLE
1890 assert (checkmax >= checkcnt); 2632 assert (checkmax >= checkcnt);
1891 array_verify (EV_A_ (W *)checks, checkcnt); 2633 array_verify (EV_A_ (W *)checks, checkcnt);
2634#endif
1892 2635
1893# if 0 2636# if 0
2637#if EV_CHILD_ENABLE
1894 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2638 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1895 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2639 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2640#endif
1896# endif 2641# endif
1897#endif 2642#endif
1898} 2643}
1899#endif 2644#endif
1900 2645
1901#if EV_MULTIPLICITY 2646#if EV_MULTIPLICITY
1902struct ev_loop * 2647struct ev_loop * ecb_cold
1903ev_default_loop_init (unsigned int flags)
1904#else 2648#else
1905int 2649int
2650#endif
1906ev_default_loop (unsigned int flags) 2651ev_default_loop (unsigned int flags) EV_THROW
1907#endif
1908{ 2652{
1909 if (!ev_default_loop_ptr) 2653 if (!ev_default_loop_ptr)
1910 { 2654 {
1911#if EV_MULTIPLICITY 2655#if EV_MULTIPLICITY
1912 EV_P = ev_default_loop_ptr = &default_loop_struct; 2656 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1916 2660
1917 loop_init (EV_A_ flags); 2661 loop_init (EV_A_ flags);
1918 2662
1919 if (ev_backend (EV_A)) 2663 if (ev_backend (EV_A))
1920 { 2664 {
1921#ifndef _WIN32 2665#if EV_CHILD_ENABLE
1922 ev_signal_init (&childev, childcb, SIGCHLD); 2666 ev_signal_init (&childev, childcb, SIGCHLD);
1923 ev_set_priority (&childev, EV_MAXPRI); 2667 ev_set_priority (&childev, EV_MAXPRI);
1924 ev_signal_start (EV_A_ &childev); 2668 ev_signal_start (EV_A_ &childev);
1925 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2669 ev_unref (EV_A); /* child watcher should not keep loop alive */
1926#endif 2670#endif
… …
1931 2675
1932 return ev_default_loop_ptr; 2676 return ev_default_loop_ptr;
1933} 2677}
1934 2678
1935void 2679void
1936ev_default_destroy (void) 2680ev_loop_fork (EV_P) EV_THROW
1937{ 2681{
1938#if EV_MULTIPLICITY
1939 EV_P = ev_default_loop_ptr;
1940#endif
1941
1942 ev_default_loop_ptr = 0;
1943
1944#ifndef _WIN32
1945 ev_ref (EV_A); /* child watcher */
1946 ev_signal_stop (EV_A_ &childev);
1947#endif
1948
1949 loop_destroy (EV_A);
1950}
1951
1952void
1953ev_default_fork (void)
1954{
1955#if EV_MULTIPLICITY
1956 EV_P = ev_default_loop_ptr;
1957#endif
1958
1959 postfork = 1; /* must be in line with ev_loop_fork */ 2682 postfork = 1; /* must be in line with ev_default_fork */
1960} 2683}
1961 2684
1962/*****************************************************************************/ 2685/*****************************************************************************/
1963 2686
1964void 2687void
… …
1966{ 2689{
1967 EV_CB_INVOKE ((W)w, revents); 2690 EV_CB_INVOKE ((W)w, revents);
1968} 2691}
1969 2692
1970unsigned int 2693unsigned int
1971ev_pending_count (EV_P) 2694ev_pending_count (EV_P) EV_THROW
1972{ 2695{
1973 int pri; 2696 int pri;
1974 unsigned int count = 0; 2697 unsigned int count = 0;
1975 2698
1976 for (pri = NUMPRI; pri--; ) 2699 for (pri = NUMPRI; pri--; )
… …
1980} 2703}
1981 2704
1982void noinline 2705void noinline
1983ev_invoke_pending (EV_P) 2706ev_invoke_pending (EV_P)
1984{ 2707{
1985 int pri; 2708 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1986
1987 for (pri = NUMPRI; pri--; )
1988 while (pendingcnt [pri]) 2709 while (pendingcnt [pendingpri])
1989 { 2710 {
1990 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2711 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1991
1992 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1993 /* ^ this is no longer true, as pending_w could be here */
1994 2712
1995 p->w->pending = 0; 2713 p->w->pending = 0;
1996 EV_CB_INVOKE (p->w, p->events); 2714 EV_CB_INVOKE (p->w, p->events);
1997 EV_FREQUENT_CHECK; 2715 EV_FREQUENT_CHECK;
1998 } 2716 }
… …
2055 EV_FREQUENT_CHECK; 2773 EV_FREQUENT_CHECK;
2056 feed_reverse (EV_A_ (W)w); 2774 feed_reverse (EV_A_ (W)w);
2057 } 2775 }
2058 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2776 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2059 2777
2060 feed_reverse_done (EV_A_ EV_TIMEOUT); 2778 feed_reverse_done (EV_A_ EV_TIMER);
2061 } 2779 }
2062} 2780}
2063 2781
2064#if EV_PERIODIC_ENABLE 2782#if EV_PERIODIC_ENABLE
2783
2784static void noinline
2785periodic_recalc (EV_P_ ev_periodic *w)
2786{
2787 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2788 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2789
2790 /* the above almost always errs on the low side */
2791 while (at <= ev_rt_now)
2792 {
2793 ev_tstamp nat = at + w->interval;
2794
2795 /* when resolution fails us, we use ev_rt_now */
2796 if (expect_false (nat == at))
2797 {
2798 at = ev_rt_now;
2799 break;
2800 }
2801
2802 at = nat;
2803 }
2804
2805 ev_at (w) = at;
2806}
2807
2065/* make periodics pending */ 2808/* make periodics pending */
2066inline_size void 2809inline_size void
2067periodics_reify (EV_P) 2810periodics_reify (EV_P)
2068{ 2811{
2069 EV_FREQUENT_CHECK; 2812 EV_FREQUENT_CHECK;
… …
2088 ANHE_at_cache (periodics [HEAP0]); 2831 ANHE_at_cache (periodics [HEAP0]);
2089 downheap (periodics, periodiccnt, HEAP0); 2832 downheap (periodics, periodiccnt, HEAP0);
2090 } 2833 }
2091 else if (w->interval) 2834 else if (w->interval)
2092 { 2835 {
2093 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2836 periodic_recalc (EV_A_ w);
2094 /* if next trigger time is not sufficiently in the future, put it there */
2095 /* this might happen because of floating point inexactness */
2096 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2097 {
2098 ev_at (w) += w->interval;
2099
2100 /* if interval is unreasonably low we might still have a time in the past */
2101 /* so correct this. this will make the periodic very inexact, but the user */
2102 /* has effectively asked to get triggered more often than possible */
2103 if (ev_at (w) < ev_rt_now)
2104 ev_at (w) = ev_rt_now;
2105 }
2106
2107 ANHE_at_cache (periodics [HEAP0]); 2837 ANHE_at_cache (periodics [HEAP0]);
2108 downheap (periodics, periodiccnt, HEAP0); 2838 downheap (periodics, periodiccnt, HEAP0);
2109 } 2839 }
2110 else 2840 else
2111 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2841 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2118 feed_reverse_done (EV_A_ EV_PERIODIC); 2848 feed_reverse_done (EV_A_ EV_PERIODIC);
2119 } 2849 }
2120} 2850}
2121 2851
2122/* simply recalculate all periodics */ 2852/* simply recalculate all periodics */
2123/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2853/* TODO: maybe ensure that at least one event happens when jumping forward? */
2124static void noinline 2854static void noinline ecb_cold
2125periodics_reschedule (EV_P) 2855periodics_reschedule (EV_P)
2126{ 2856{
2127 int i; 2857 int i;
2128 2858
2129 /* adjust periodics after time jump */ 2859 /* adjust periodics after time jump */
… …
2132 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2862 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2133 2863
2134 if (w->reschedule_cb) 2864 if (w->reschedule_cb)
2135 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2865 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2136 else if (w->interval) 2866 else if (w->interval)
2137 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2867 periodic_recalc (EV_A_ w);
2138 2868
2139 ANHE_at_cache (periodics [i]); 2869 ANHE_at_cache (periodics [i]);
2140 } 2870 }
2141 2871
2142 reheap (periodics, periodiccnt); 2872 reheap (periodics, periodiccnt);
2143} 2873}
2144#endif 2874#endif
2145 2875
2146/* adjust all timers by a given offset */ 2876/* adjust all timers by a given offset */
2147static void noinline 2877static void noinline ecb_cold
2148timers_reschedule (EV_P_ ev_tstamp adjust) 2878timers_reschedule (EV_P_ ev_tstamp adjust)
2149{ 2879{
2150 int i; 2880 int i;
2151 2881
2152 for (i = 0; i < timercnt; ++i) 2882 for (i = 0; i < timercnt; ++i)
… …
2156 ANHE_at_cache (*he); 2886 ANHE_at_cache (*he);
2157 } 2887 }
2158} 2888}
2159 2889
2160/* fetch new monotonic and realtime times from the kernel */ 2890/* fetch new monotonic and realtime times from the kernel */
2161/* also detetc if there was a timejump, and act accordingly */ 2891/* also detect if there was a timejump, and act accordingly */
2162inline_speed void 2892inline_speed void
2163time_update (EV_P_ ev_tstamp max_block) 2893time_update (EV_P_ ev_tstamp max_block)
2164{ 2894{
2165#if EV_USE_MONOTONIC 2895#if EV_USE_MONOTONIC
2166 if (expect_true (have_monotonic)) 2896 if (expect_true (have_monotonic))
… …
2189 * doesn't hurt either as we only do this on time-jumps or 2919 * doesn't hurt either as we only do this on time-jumps or
2190 * in the unlikely event of having been preempted here. 2920 * in the unlikely event of having been preempted here.
2191 */ 2921 */
2192 for (i = 4; --i; ) 2922 for (i = 4; --i; )
2193 { 2923 {
2924 ev_tstamp diff;
2194 rtmn_diff = ev_rt_now - mn_now; 2925 rtmn_diff = ev_rt_now - mn_now;
2195 2926
2927 diff = odiff - rtmn_diff;
2928
2196 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2929 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2197 return; /* all is well */ 2930 return; /* all is well */
2198 2931
2199 ev_rt_now = ev_time (); 2932 ev_rt_now = ev_time ();
2200 mn_now = get_clock (); 2933 mn_now = get_clock ();
2201 now_floor = mn_now; 2934 now_floor = mn_now;
… …
2223 2956
2224 mn_now = ev_rt_now; 2957 mn_now = ev_rt_now;
2225 } 2958 }
2226} 2959}
2227 2960
2228void 2961int
2229ev_loop (EV_P_ int flags) 2962ev_run (EV_P_ int flags)
2230{ 2963{
2231#if EV_MINIMAL < 2 2964#if EV_FEATURE_API
2232 ++loop_depth; 2965 ++loop_depth;
2233#endif 2966#endif
2234 2967
2235 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2968 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2236 2969
2237 loop_done = EVUNLOOP_CANCEL; 2970 loop_done = EVBREAK_CANCEL;
2238 2971
2239 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2972 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2240 2973
2241 do 2974 do
2242 { 2975 {
2243#if EV_VERIFY >= 2 2976#if EV_VERIFY >= 2
2244 ev_loop_verify (EV_A); 2977 ev_verify (EV_A);
2245#endif 2978#endif
2246 2979
2247#ifndef _WIN32 2980#ifndef _WIN32
2248 if (expect_false (curpid)) /* penalise the forking check even more */ 2981 if (expect_false (curpid)) /* penalise the forking check even more */
2249 if (expect_false (getpid () != curpid)) 2982 if (expect_false (getpid () != curpid))
… …
2261 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2994 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2262 EV_INVOKE_PENDING; 2995 EV_INVOKE_PENDING;
2263 } 2996 }
2264#endif 2997#endif
2265 2998
2999#if EV_PREPARE_ENABLE
2266 /* queue prepare watchers (and execute them) */ 3000 /* queue prepare watchers (and execute them) */
2267 if (expect_false (preparecnt)) 3001 if (expect_false (preparecnt))
2268 { 3002 {
2269 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3003 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2270 EV_INVOKE_PENDING; 3004 EV_INVOKE_PENDING;
2271 } 3005 }
3006#endif
2272 3007
2273 if (expect_false (loop_done)) 3008 if (expect_false (loop_done))
2274 break; 3009 break;
2275 3010
2276 /* we might have forked, so reify kernel state if necessary */ 3011 /* we might have forked, so reify kernel state if necessary */
… …
2283 /* calculate blocking time */ 3018 /* calculate blocking time */
2284 { 3019 {
2285 ev_tstamp waittime = 0.; 3020 ev_tstamp waittime = 0.;
2286 ev_tstamp sleeptime = 0.; 3021 ev_tstamp sleeptime = 0.;
2287 3022
3023 /* remember old timestamp for io_blocktime calculation */
3024 ev_tstamp prev_mn_now = mn_now;
3025
3026 /* update time to cancel out callback processing overhead */
3027 time_update (EV_A_ 1e100);
3028
3029 /* from now on, we want a pipe-wake-up */
3030 pipe_write_wanted = 1;
3031
3032 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3033
2288 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3034 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2289 { 3035 {
2290 /* remember old timestamp for io_blocktime calculation */
2291 ev_tstamp prev_mn_now = mn_now;
2292
2293 /* update time to cancel out callback processing overhead */
2294 time_update (EV_A_ 1e100);
2295
2296 waittime = MAX_BLOCKTIME; 3036 waittime = MAX_BLOCKTIME;
2297 3037
2298 if (timercnt) 3038 if (timercnt)
2299 { 3039 {
2300 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3040 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2301 if (waittime > to) waittime = to; 3041 if (waittime > to) waittime = to;
2302 } 3042 }
2303 3043
2304#if EV_PERIODIC_ENABLE 3044#if EV_PERIODIC_ENABLE
2305 if (periodiccnt) 3045 if (periodiccnt)
2306 { 3046 {
2307 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3047 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2308 if (waittime > to) waittime = to; 3048 if (waittime > to) waittime = to;
2309 } 3049 }
2310#endif 3050#endif
2311 3051
2312 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3052 /* don't let timeouts decrease the waittime below timeout_blocktime */
2313 if (expect_false (waittime < timeout_blocktime)) 3053 if (expect_false (waittime < timeout_blocktime))
2314 waittime = timeout_blocktime; 3054 waittime = timeout_blocktime;
3055
3056 /* at this point, we NEED to wait, so we have to ensure */
3057 /* to pass a minimum nonzero value to the backend */
3058 if (expect_false (waittime < backend_mintime))
3059 waittime = backend_mintime;
2315 3060
2316 /* extra check because io_blocktime is commonly 0 */ 3061 /* extra check because io_blocktime is commonly 0 */
2317 if (expect_false (io_blocktime)) 3062 if (expect_false (io_blocktime))
2318 { 3063 {
2319 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3064 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2320 3065
2321 if (sleeptime > waittime - backend_fudge) 3066 if (sleeptime > waittime - backend_mintime)
2322 sleeptime = waittime - backend_fudge; 3067 sleeptime = waittime - backend_mintime;
2323 3068
2324 if (expect_true (sleeptime > 0.)) 3069 if (expect_true (sleeptime > 0.))
2325 { 3070 {
2326 ev_sleep (sleeptime); 3071 ev_sleep (sleeptime);
2327 waittime -= sleeptime; 3072 waittime -= sleeptime;
2328 } 3073 }
2329 } 3074 }
2330 } 3075 }
2331 3076
2332#if EV_MINIMAL < 2 3077#if EV_FEATURE_API
2333 ++loop_count; 3078 ++loop_count;
2334#endif 3079#endif
2335 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3080 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2336 backend_poll (EV_A_ waittime); 3081 backend_poll (EV_A_ waittime);
2337 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3082 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3083
3084 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3085
3086 if (pipe_write_skipped)
3087 {
3088 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3089 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3090 }
3091
2338 3092
2339 /* update ev_rt_now, do magic */ 3093 /* update ev_rt_now, do magic */
2340 time_update (EV_A_ waittime + sleeptime); 3094 time_update (EV_A_ waittime + sleeptime);
2341 } 3095 }
2342 3096
… …
2349#if EV_IDLE_ENABLE 3103#if EV_IDLE_ENABLE
2350 /* queue idle watchers unless other events are pending */ 3104 /* queue idle watchers unless other events are pending */
2351 idle_reify (EV_A); 3105 idle_reify (EV_A);
2352#endif 3106#endif
2353 3107
3108#if EV_CHECK_ENABLE
2354 /* queue check watchers, to be executed first */ 3109 /* queue check watchers, to be executed first */
2355 if (expect_false (checkcnt)) 3110 if (expect_false (checkcnt))
2356 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3111 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3112#endif
2357 3113
2358 EV_INVOKE_PENDING; 3114 EV_INVOKE_PENDING;
2359 } 3115 }
2360 while (expect_true ( 3116 while (expect_true (
2361 activecnt 3117 activecnt
2362 && !loop_done 3118 && !loop_done
2363 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3119 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2364 )); 3120 ));
2365 3121
2366 if (loop_done == EVUNLOOP_ONE) 3122 if (loop_done == EVBREAK_ONE)
2367 loop_done = EVUNLOOP_CANCEL; 3123 loop_done = EVBREAK_CANCEL;
2368 3124
2369#if EV_MINIMAL < 2 3125#if EV_FEATURE_API
2370 --loop_depth; 3126 --loop_depth;
2371#endif 3127#endif
3128
3129 return activecnt;
2372} 3130}
2373 3131
2374void 3132void
2375ev_unloop (EV_P_ int how) 3133ev_break (EV_P_ int how) EV_THROW
2376{ 3134{
2377 loop_done = how; 3135 loop_done = how;
2378} 3136}
2379 3137
2380void 3138void
2381ev_ref (EV_P) 3139ev_ref (EV_P) EV_THROW
2382{ 3140{
2383 ++activecnt; 3141 ++activecnt;
2384} 3142}
2385 3143
2386void 3144void
2387ev_unref (EV_P) 3145ev_unref (EV_P) EV_THROW
2388{ 3146{
2389 --activecnt; 3147 --activecnt;
2390} 3148}
2391 3149
2392void 3150void
2393ev_now_update (EV_P) 3151ev_now_update (EV_P) EV_THROW
2394{ 3152{
2395 time_update (EV_A_ 1e100); 3153 time_update (EV_A_ 1e100);
2396} 3154}
2397 3155
2398void 3156void
2399ev_suspend (EV_P) 3157ev_suspend (EV_P) EV_THROW
2400{ 3158{
2401 ev_now_update (EV_A); 3159 ev_now_update (EV_A);
2402} 3160}
2403 3161
2404void 3162void
2405ev_resume (EV_P) 3163ev_resume (EV_P) EV_THROW
2406{ 3164{
2407 ev_tstamp mn_prev = mn_now; 3165 ev_tstamp mn_prev = mn_now;
2408 3166
2409 ev_now_update (EV_A); 3167 ev_now_update (EV_A);
2410 timers_reschedule (EV_A_ mn_now - mn_prev); 3168 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2449 w->pending = 0; 3207 w->pending = 0;
2450 } 3208 }
2451} 3209}
2452 3210
2453int 3211int
2454ev_clear_pending (EV_P_ void *w) 3212ev_clear_pending (EV_P_ void *w) EV_THROW
2455{ 3213{
2456 W w_ = (W)w; 3214 W w_ = (W)w;
2457 int pending = w_->pending; 3215 int pending = w_->pending;
2458 3216
2459 if (expect_true (pending)) 3217 if (expect_true (pending))
… …
2492} 3250}
2493 3251
2494/*****************************************************************************/ 3252/*****************************************************************************/
2495 3253
2496void noinline 3254void noinline
2497ev_io_start (EV_P_ ev_io *w) 3255ev_io_start (EV_P_ ev_io *w) EV_THROW
2498{ 3256{
2499 int fd = w->fd; 3257 int fd = w->fd;
2500 3258
2501 if (expect_false (ev_is_active (w))) 3259 if (expect_false (ev_is_active (w)))
2502 return; 3260 return;
2503 3261
2504 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3262 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2505 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3263 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2506 3264
2507 EV_FREQUENT_CHECK; 3265 EV_FREQUENT_CHECK;
2508 3266
2509 ev_start (EV_A_ (W)w, 1); 3267 ev_start (EV_A_ (W)w, 1);
2510 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3268 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2511 wlist_add (&anfds[fd].head, (WL)w); 3269 wlist_add (&anfds[fd].head, (WL)w);
2512 3270
3271 /* common bug, apparently */
3272 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3273
2513 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3274 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2514 w->events &= ~EV__IOFDSET; 3275 w->events &= ~EV__IOFDSET;
2515 3276
2516 EV_FREQUENT_CHECK; 3277 EV_FREQUENT_CHECK;
2517} 3278}
2518 3279
2519void noinline 3280void noinline
2520ev_io_stop (EV_P_ ev_io *w) 3281ev_io_stop (EV_P_ ev_io *w) EV_THROW
2521{ 3282{
2522 clear_pending (EV_A_ (W)w); 3283 clear_pending (EV_A_ (W)w);
2523 if (expect_false (!ev_is_active (w))) 3284 if (expect_false (!ev_is_active (w)))
2524 return; 3285 return;
2525 3286
… …
2528 EV_FREQUENT_CHECK; 3289 EV_FREQUENT_CHECK;
2529 3290
2530 wlist_del (&anfds[w->fd].head, (WL)w); 3291 wlist_del (&anfds[w->fd].head, (WL)w);
2531 ev_stop (EV_A_ (W)w); 3292 ev_stop (EV_A_ (W)w);
2532 3293
2533 fd_change (EV_A_ w->fd, 1); 3294 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2534 3295
2535 EV_FREQUENT_CHECK; 3296 EV_FREQUENT_CHECK;
2536} 3297}
2537 3298
2538void noinline 3299void noinline
2539ev_timer_start (EV_P_ ev_timer *w) 3300ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2540{ 3301{
2541 if (expect_false (ev_is_active (w))) 3302 if (expect_false (ev_is_active (w)))
2542 return; 3303 return;
2543 3304
2544 ev_at (w) += mn_now; 3305 ev_at (w) += mn_now;
… …
2558 3319
2559 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3320 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2560} 3321}
2561 3322
2562void noinline 3323void noinline
2563ev_timer_stop (EV_P_ ev_timer *w) 3324ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2564{ 3325{
2565 clear_pending (EV_A_ (W)w); 3326 clear_pending (EV_A_ (W)w);
2566 if (expect_false (!ev_is_active (w))) 3327 if (expect_false (!ev_is_active (w)))
2567 return; 3328 return;
2568 3329
… …
2580 timers [active] = timers [timercnt + HEAP0]; 3341 timers [active] = timers [timercnt + HEAP0];
2581 adjustheap (timers, timercnt, active); 3342 adjustheap (timers, timercnt, active);
2582 } 3343 }
2583 } 3344 }
2584 3345
2585 EV_FREQUENT_CHECK;
2586
2587 ev_at (w) -= mn_now; 3346 ev_at (w) -= mn_now;
2588 3347
2589 ev_stop (EV_A_ (W)w); 3348 ev_stop (EV_A_ (W)w);
3349
3350 EV_FREQUENT_CHECK;
2590} 3351}
2591 3352
2592void noinline 3353void noinline
2593ev_timer_again (EV_P_ ev_timer *w) 3354ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2594{ 3355{
2595 EV_FREQUENT_CHECK; 3356 EV_FREQUENT_CHECK;
3357
3358 clear_pending (EV_A_ (W)w);
2596 3359
2597 if (ev_is_active (w)) 3360 if (ev_is_active (w))
2598 { 3361 {
2599 if (w->repeat) 3362 if (w->repeat)
2600 { 3363 {
… …
2613 3376
2614 EV_FREQUENT_CHECK; 3377 EV_FREQUENT_CHECK;
2615} 3378}
2616 3379
2617ev_tstamp 3380ev_tstamp
2618ev_timer_remaining (EV_P_ ev_timer *w) 3381ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2619{ 3382{
2620 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3383 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2621} 3384}
2622 3385
2623#if EV_PERIODIC_ENABLE 3386#if EV_PERIODIC_ENABLE
2624void noinline 3387void noinline
2625ev_periodic_start (EV_P_ ev_periodic *w) 3388ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2626{ 3389{
2627 if (expect_false (ev_is_active (w))) 3390 if (expect_false (ev_is_active (w)))
2628 return; 3391 return;
2629 3392
2630 if (w->reschedule_cb) 3393 if (w->reschedule_cb)
2631 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3394 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2632 else if (w->interval) 3395 else if (w->interval)
2633 { 3396 {
2634 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3397 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2635 /* this formula differs from the one in periodic_reify because we do not always round up */ 3398 periodic_recalc (EV_A_ w);
2636 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2637 } 3399 }
2638 else 3400 else
2639 ev_at (w) = w->offset; 3401 ev_at (w) = w->offset;
2640 3402
2641 EV_FREQUENT_CHECK; 3403 EV_FREQUENT_CHECK;
… …
2651 3413
2652 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3414 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2653} 3415}
2654 3416
2655void noinline 3417void noinline
2656ev_periodic_stop (EV_P_ ev_periodic *w) 3418ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2657{ 3419{
2658 clear_pending (EV_A_ (W)w); 3420 clear_pending (EV_A_ (W)w);
2659 if (expect_false (!ev_is_active (w))) 3421 if (expect_false (!ev_is_active (w)))
2660 return; 3422 return;
2661 3423
… …
2673 periodics [active] = periodics [periodiccnt + HEAP0]; 3435 periodics [active] = periodics [periodiccnt + HEAP0];
2674 adjustheap (periodics, periodiccnt, active); 3436 adjustheap (periodics, periodiccnt, active);
2675 } 3437 }
2676 } 3438 }
2677 3439
2678 EV_FREQUENT_CHECK;
2679
2680 ev_stop (EV_A_ (W)w); 3440 ev_stop (EV_A_ (W)w);
3441
3442 EV_FREQUENT_CHECK;
2681} 3443}
2682 3444
2683void noinline 3445void noinline
2684ev_periodic_again (EV_P_ ev_periodic *w) 3446ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2685{ 3447{
2686 /* TODO: use adjustheap and recalculation */ 3448 /* TODO: use adjustheap and recalculation */
2687 ev_periodic_stop (EV_A_ w); 3449 ev_periodic_stop (EV_A_ w);
2688 ev_periodic_start (EV_A_ w); 3450 ev_periodic_start (EV_A_ w);
2689} 3451}
… …
2691 3453
2692#ifndef SA_RESTART 3454#ifndef SA_RESTART
2693# define SA_RESTART 0 3455# define SA_RESTART 0
2694#endif 3456#endif
2695 3457
3458#if EV_SIGNAL_ENABLE
3459
2696void noinline 3460void noinline
2697ev_signal_start (EV_P_ ev_signal *w) 3461ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2698{ 3462{
2699 if (expect_false (ev_is_active (w))) 3463 if (expect_false (ev_is_active (w)))
2700 return; 3464 return;
2701 3465
2702 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3466 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2746 if (!((WL)w)->next) 3510 if (!((WL)w)->next)
2747# if EV_USE_SIGNALFD 3511# if EV_USE_SIGNALFD
2748 if (sigfd < 0) /*TODO*/ 3512 if (sigfd < 0) /*TODO*/
2749# endif 3513# endif
2750 { 3514 {
2751# if _WIN32 3515# ifdef _WIN32
2752 evpipe_init (EV_A); 3516 evpipe_init (EV_A);
2753 3517
2754 signal (w->signum, ev_sighandler); 3518 signal (w->signum, ev_sighandler);
2755# else 3519# else
2756 struct sigaction sa; 3520 struct sigaction sa;
… …
2760 sa.sa_handler = ev_sighandler; 3524 sa.sa_handler = ev_sighandler;
2761 sigfillset (&sa.sa_mask); 3525 sigfillset (&sa.sa_mask);
2762 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3526 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2763 sigaction (w->signum, &sa, 0); 3527 sigaction (w->signum, &sa, 0);
2764 3528
3529 if (origflags & EVFLAG_NOSIGMASK)
3530 {
2765 sigemptyset (&sa.sa_mask); 3531 sigemptyset (&sa.sa_mask);
2766 sigaddset (&sa.sa_mask, w->signum); 3532 sigaddset (&sa.sa_mask, w->signum);
2767 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3533 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3534 }
2768#endif 3535#endif
2769 } 3536 }
2770 3537
2771 EV_FREQUENT_CHECK; 3538 EV_FREQUENT_CHECK;
2772} 3539}
2773 3540
2774void noinline 3541void noinline
2775ev_signal_stop (EV_P_ ev_signal *w) 3542ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2776{ 3543{
2777 clear_pending (EV_A_ (W)w); 3544 clear_pending (EV_A_ (W)w);
2778 if (expect_false (!ev_is_active (w))) 3545 if (expect_false (!ev_is_active (w)))
2779 return; 3546 return;
2780 3547
… …
2789 signals [w->signum - 1].loop = 0; /* unattach from signal */ 3556 signals [w->signum - 1].loop = 0; /* unattach from signal */
2790#endif 3557#endif
2791#if EV_USE_SIGNALFD 3558#if EV_USE_SIGNALFD
2792 if (sigfd >= 0) 3559 if (sigfd >= 0)
2793 { 3560 {
2794 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3561 sigset_t ss;
3562
3563 sigemptyset (&ss);
3564 sigaddset (&ss, w->signum);
2795 sigdelset (&sigfd_set, w->signum); 3565 sigdelset (&sigfd_set, w->signum);
3566
2796 signalfd (sigfd, &sigfd_set, 0); 3567 signalfd (sigfd, &sigfd_set, 0);
2797 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3568 sigprocmask (SIG_UNBLOCK, &ss, 0);
2798 /*TODO: maybe unblock signal? */
2799 } 3569 }
2800 else 3570 else
2801#endif 3571#endif
2802 signal (w->signum, SIG_DFL); 3572 signal (w->signum, SIG_DFL);
2803 } 3573 }
2804 3574
2805 EV_FREQUENT_CHECK; 3575 EV_FREQUENT_CHECK;
2806} 3576}
2807 3577
3578#endif
3579
3580#if EV_CHILD_ENABLE
3581
2808void 3582void
2809ev_child_start (EV_P_ ev_child *w) 3583ev_child_start (EV_P_ ev_child *w) EV_THROW
2810{ 3584{
2811#if EV_MULTIPLICITY 3585#if EV_MULTIPLICITY
2812 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3586 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2813#endif 3587#endif
2814 if (expect_false (ev_is_active (w))) 3588 if (expect_false (ev_is_active (w)))
2815 return; 3589 return;
2816 3590
2817 EV_FREQUENT_CHECK; 3591 EV_FREQUENT_CHECK;
2818 3592
2819 ev_start (EV_A_ (W)w, 1); 3593 ev_start (EV_A_ (W)w, 1);
2820 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3594 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2821 3595
2822 EV_FREQUENT_CHECK; 3596 EV_FREQUENT_CHECK;
2823} 3597}
2824 3598
2825void 3599void
2826ev_child_stop (EV_P_ ev_child *w) 3600ev_child_stop (EV_P_ ev_child *w) EV_THROW
2827{ 3601{
2828 clear_pending (EV_A_ (W)w); 3602 clear_pending (EV_A_ (W)w);
2829 if (expect_false (!ev_is_active (w))) 3603 if (expect_false (!ev_is_active (w)))
2830 return; 3604 return;
2831 3605
2832 EV_FREQUENT_CHECK; 3606 EV_FREQUENT_CHECK;
2833 3607
2834 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3608 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2835 ev_stop (EV_A_ (W)w); 3609 ev_stop (EV_A_ (W)w);
2836 3610
2837 EV_FREQUENT_CHECK; 3611 EV_FREQUENT_CHECK;
2838} 3612}
3613
3614#endif
2839 3615
2840#if EV_STAT_ENABLE 3616#if EV_STAT_ENABLE
2841 3617
2842# ifdef _WIN32 3618# ifdef _WIN32
2843# undef lstat 3619# undef lstat
… …
2849#define MIN_STAT_INTERVAL 0.1074891 3625#define MIN_STAT_INTERVAL 0.1074891
2850 3626
2851static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3627static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2852 3628
2853#if EV_USE_INOTIFY 3629#if EV_USE_INOTIFY
2854# define EV_INOTIFY_BUFSIZE 8192 3630
3631/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3632# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2855 3633
2856static void noinline 3634static void noinline
2857infy_add (EV_P_ ev_stat *w) 3635infy_add (EV_P_ ev_stat *w)
2858{ 3636{
2859 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3637 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
… …
2902 if (!pend || pend == path) 3680 if (!pend || pend == path)
2903 break; 3681 break;
2904 3682
2905 *pend = 0; 3683 *pend = 0;
2906 w->wd = inotify_add_watch (fs_fd, path, mask); 3684 w->wd = inotify_add_watch (fs_fd, path, mask);
2907 } 3685 }
2908 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3686 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2909 } 3687 }
2910 } 3688 }
2911 3689
2912 if (w->wd >= 0) 3690 if (w->wd >= 0)
2913 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3691 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2914 3692
2915 /* now re-arm timer, if required */ 3693 /* now re-arm timer, if required */
2916 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3694 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2917 ev_timer_again (EV_A_ &w->timer); 3695 ev_timer_again (EV_A_ &w->timer);
2918 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3696 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2926 3704
2927 if (wd < 0) 3705 if (wd < 0)
2928 return; 3706 return;
2929 3707
2930 w->wd = -2; 3708 w->wd = -2;
2931 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3709 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2932 wlist_del (&fs_hash [slot].head, (WL)w); 3710 wlist_del (&fs_hash [slot].head, (WL)w);
2933 3711
2934 /* remove this watcher, if others are watching it, they will rearm */ 3712 /* remove this watcher, if others are watching it, they will rearm */
2935 inotify_rm_watch (fs_fd, wd); 3713 inotify_rm_watch (fs_fd, wd);
2936} 3714}
… …
2938static void noinline 3716static void noinline
2939infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3717infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2940{ 3718{
2941 if (slot < 0) 3719 if (slot < 0)
2942 /* overflow, need to check for all hash slots */ 3720 /* overflow, need to check for all hash slots */
2943 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3721 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2944 infy_wd (EV_A_ slot, wd, ev); 3722 infy_wd (EV_A_ slot, wd, ev);
2945 else 3723 else
2946 { 3724 {
2947 WL w_; 3725 WL w_;
2948 3726
2949 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3727 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2950 { 3728 {
2951 ev_stat *w = (ev_stat *)w_; 3729 ev_stat *w = (ev_stat *)w_;
2952 w_ = w_->next; /* lets us remove this watcher and all before it */ 3730 w_ = w_->next; /* lets us remove this watcher and all before it */
2953 3731
2954 if (w->wd == wd || wd == -1) 3732 if (w->wd == wd || wd == -1)
2955 { 3733 {
2956 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3734 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2957 { 3735 {
2958 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3736 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2959 w->wd = -1; 3737 w->wd = -1;
2960 infy_add (EV_A_ w); /* re-add, no matter what */ 3738 infy_add (EV_A_ w); /* re-add, no matter what */
2961 } 3739 }
2962 3740
2963 stat_timer_cb (EV_A_ &w->timer, 0); 3741 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2968 3746
2969static void 3747static void
2970infy_cb (EV_P_ ev_io *w, int revents) 3748infy_cb (EV_P_ ev_io *w, int revents)
2971{ 3749{
2972 char buf [EV_INOTIFY_BUFSIZE]; 3750 char buf [EV_INOTIFY_BUFSIZE];
2973 struct inotify_event *ev = (struct inotify_event *)buf;
2974 int ofs; 3751 int ofs;
2975 int len = read (fs_fd, buf, sizeof (buf)); 3752 int len = read (fs_fd, buf, sizeof (buf));
2976 3753
2977 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3754 for (ofs = 0; ofs < len; )
3755 {
3756 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2978 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3757 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3758 ofs += sizeof (struct inotify_event) + ev->len;
3759 }
2979} 3760}
2980 3761
2981inline_size void 3762inline_size void ecb_cold
2982check_2625 (EV_P) 3763ev_check_2625 (EV_P)
2983{ 3764{
2984 /* kernels < 2.6.25 are borked 3765 /* kernels < 2.6.25 are borked
2985 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3766 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2986 */ 3767 */
2987 struct utsname buf; 3768 if (ev_linux_version () < 0x020619)
2988 int major, minor, micro;
2989
2990 if (uname (&buf))
2991 return;
2992
2993 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2994 return;
2995
2996 if (major < 2
2997 || (major == 2 && minor < 6)
2998 || (major == 2 && minor == 6 && micro < 25))
2999 return; 3769 return;
3000 3770
3001 fs_2625 = 1; 3771 fs_2625 = 1;
3002} 3772}
3003 3773
3004inline_size int 3774inline_size int
3005infy_newfd (void) 3775infy_newfd (void)
3006{ 3776{
3007#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3777#if defined IN_CLOEXEC && defined IN_NONBLOCK
3008 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3778 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3009 if (fd >= 0) 3779 if (fd >= 0)
3010 return fd; 3780 return fd;
3011#endif 3781#endif
3012 return inotify_init (); 3782 return inotify_init ();
… …
3018 if (fs_fd != -2) 3788 if (fs_fd != -2)
3019 return; 3789 return;
3020 3790
3021 fs_fd = -1; 3791 fs_fd = -1;
3022 3792
3023 check_2625 (EV_A); 3793 ev_check_2625 (EV_A);
3024 3794
3025 fs_fd = infy_newfd (); 3795 fs_fd = infy_newfd ();
3026 3796
3027 if (fs_fd >= 0) 3797 if (fs_fd >= 0)
3028 { 3798 {
… …
3053 ev_io_set (&fs_w, fs_fd, EV_READ); 3823 ev_io_set (&fs_w, fs_fd, EV_READ);
3054 ev_io_start (EV_A_ &fs_w); 3824 ev_io_start (EV_A_ &fs_w);
3055 ev_unref (EV_A); 3825 ev_unref (EV_A);
3056 } 3826 }
3057 3827
3058 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3828 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3059 { 3829 {
3060 WL w_ = fs_hash [slot].head; 3830 WL w_ = fs_hash [slot].head;
3061 fs_hash [slot].head = 0; 3831 fs_hash [slot].head = 0;
3062 3832
3063 while (w_) 3833 while (w_)
… …
3087#else 3857#else
3088# define EV_LSTAT(p,b) lstat (p, b) 3858# define EV_LSTAT(p,b) lstat (p, b)
3089#endif 3859#endif
3090 3860
3091void 3861void
3092ev_stat_stat (EV_P_ ev_stat *w) 3862ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3093{ 3863{
3094 if (lstat (w->path, &w->attr) < 0) 3864 if (lstat (w->path, &w->attr) < 0)
3095 w->attr.st_nlink = 0; 3865 w->attr.st_nlink = 0;
3096 else if (!w->attr.st_nlink) 3866 else if (!w->attr.st_nlink)
3097 w->attr.st_nlink = 1; 3867 w->attr.st_nlink = 1;
… …
3100static void noinline 3870static void noinline
3101stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3871stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3102{ 3872{
3103 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3873 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3104 3874
3105 /* we copy this here each the time so that */ 3875 ev_statdata prev = w->attr;
3106 /* prev has the old value when the callback gets invoked */
3107 w->prev = w->attr;
3108 ev_stat_stat (EV_A_ w); 3876 ev_stat_stat (EV_A_ w);
3109 3877
3110 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3878 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3111 if ( 3879 if (
3112 w->prev.st_dev != w->attr.st_dev 3880 prev.st_dev != w->attr.st_dev
3113 || w->prev.st_ino != w->attr.st_ino 3881 || prev.st_ino != w->attr.st_ino
3114 || w->prev.st_mode != w->attr.st_mode 3882 || prev.st_mode != w->attr.st_mode
3115 || w->prev.st_nlink != w->attr.st_nlink 3883 || prev.st_nlink != w->attr.st_nlink
3116 || w->prev.st_uid != w->attr.st_uid 3884 || prev.st_uid != w->attr.st_uid
3117 || w->prev.st_gid != w->attr.st_gid 3885 || prev.st_gid != w->attr.st_gid
3118 || w->prev.st_rdev != w->attr.st_rdev 3886 || prev.st_rdev != w->attr.st_rdev
3119 || w->prev.st_size != w->attr.st_size 3887 || prev.st_size != w->attr.st_size
3120 || w->prev.st_atime != w->attr.st_atime 3888 || prev.st_atime != w->attr.st_atime
3121 || w->prev.st_mtime != w->attr.st_mtime 3889 || prev.st_mtime != w->attr.st_mtime
3122 || w->prev.st_ctime != w->attr.st_ctime 3890 || prev.st_ctime != w->attr.st_ctime
3123 ) { 3891 ) {
3892 /* we only update w->prev on actual differences */
3893 /* in case we test more often than invoke the callback, */
3894 /* to ensure that prev is always different to attr */
3895 w->prev = prev;
3896
3124 #if EV_USE_INOTIFY 3897 #if EV_USE_INOTIFY
3125 if (fs_fd >= 0) 3898 if (fs_fd >= 0)
3126 { 3899 {
3127 infy_del (EV_A_ w); 3900 infy_del (EV_A_ w);
3128 infy_add (EV_A_ w); 3901 infy_add (EV_A_ w);
… …
3133 ev_feed_event (EV_A_ w, EV_STAT); 3906 ev_feed_event (EV_A_ w, EV_STAT);
3134 } 3907 }
3135} 3908}
3136 3909
3137void 3910void
3138ev_stat_start (EV_P_ ev_stat *w) 3911ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3139{ 3912{
3140 if (expect_false (ev_is_active (w))) 3913 if (expect_false (ev_is_active (w)))
3141 return; 3914 return;
3142 3915
3143 ev_stat_stat (EV_A_ w); 3916 ev_stat_stat (EV_A_ w);
… …
3164 3937
3165 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
3166} 3939}
3167 3940
3168void 3941void
3169ev_stat_stop (EV_P_ ev_stat *w) 3942ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3170{ 3943{
3171 clear_pending (EV_A_ (W)w); 3944 clear_pending (EV_A_ (W)w);
3172 if (expect_false (!ev_is_active (w))) 3945 if (expect_false (!ev_is_active (w)))
3173 return; 3946 return;
3174 3947
… …
3190} 3963}
3191#endif 3964#endif
3192 3965
3193#if EV_IDLE_ENABLE 3966#if EV_IDLE_ENABLE
3194void 3967void
3195ev_idle_start (EV_P_ ev_idle *w) 3968ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3196{ 3969{
3197 if (expect_false (ev_is_active (w))) 3970 if (expect_false (ev_is_active (w)))
3198 return; 3971 return;
3199 3972
3200 pri_adjust (EV_A_ (W)w); 3973 pri_adjust (EV_A_ (W)w);
… …
3213 3986
3214 EV_FREQUENT_CHECK; 3987 EV_FREQUENT_CHECK;
3215} 3988}
3216 3989
3217void 3990void
3218ev_idle_stop (EV_P_ ev_idle *w) 3991ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3219{ 3992{
3220 clear_pending (EV_A_ (W)w); 3993 clear_pending (EV_A_ (W)w);
3221 if (expect_false (!ev_is_active (w))) 3994 if (expect_false (!ev_is_active (w)))
3222 return; 3995 return;
3223 3996
… …
3235 4008
3236 EV_FREQUENT_CHECK; 4009 EV_FREQUENT_CHECK;
3237} 4010}
3238#endif 4011#endif
3239 4012
4013#if EV_PREPARE_ENABLE
3240void 4014void
3241ev_prepare_start (EV_P_ ev_prepare *w) 4015ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3242{ 4016{
3243 if (expect_false (ev_is_active (w))) 4017 if (expect_false (ev_is_active (w)))
3244 return; 4018 return;
3245 4019
3246 EV_FREQUENT_CHECK; 4020 EV_FREQUENT_CHECK;
… …
3251 4025
3252 EV_FREQUENT_CHECK; 4026 EV_FREQUENT_CHECK;
3253} 4027}
3254 4028
3255void 4029void
3256ev_prepare_stop (EV_P_ ev_prepare *w) 4030ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3257{ 4031{
3258 clear_pending (EV_A_ (W)w); 4032 clear_pending (EV_A_ (W)w);
3259 if (expect_false (!ev_is_active (w))) 4033 if (expect_false (!ev_is_active (w)))
3260 return; 4034 return;
3261 4035
… …
3270 4044
3271 ev_stop (EV_A_ (W)w); 4045 ev_stop (EV_A_ (W)w);
3272 4046
3273 EV_FREQUENT_CHECK; 4047 EV_FREQUENT_CHECK;
3274} 4048}
4049#endif
3275 4050
4051#if EV_CHECK_ENABLE
3276void 4052void
3277ev_check_start (EV_P_ ev_check *w) 4053ev_check_start (EV_P_ ev_check *w) EV_THROW
3278{ 4054{
3279 if (expect_false (ev_is_active (w))) 4055 if (expect_false (ev_is_active (w)))
3280 return; 4056 return;
3281 4057
3282 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
… …
3287 4063
3288 EV_FREQUENT_CHECK; 4064 EV_FREQUENT_CHECK;
3289} 4065}
3290 4066
3291void 4067void
3292ev_check_stop (EV_P_ ev_check *w) 4068ev_check_stop (EV_P_ ev_check *w) EV_THROW
3293{ 4069{
3294 clear_pending (EV_A_ (W)w); 4070 clear_pending (EV_A_ (W)w);
3295 if (expect_false (!ev_is_active (w))) 4071 if (expect_false (!ev_is_active (w)))
3296 return; 4072 return;
3297 4073
… …
3306 4082
3307 ev_stop (EV_A_ (W)w); 4083 ev_stop (EV_A_ (W)w);
3308 4084
3309 EV_FREQUENT_CHECK; 4085 EV_FREQUENT_CHECK;
3310} 4086}
4087#endif
3311 4088
3312#if EV_EMBED_ENABLE 4089#if EV_EMBED_ENABLE
3313void noinline 4090void noinline
3314ev_embed_sweep (EV_P_ ev_embed *w) 4091ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3315{ 4092{
3316 ev_loop (w->other, EVLOOP_NONBLOCK); 4093 ev_run (w->other, EVRUN_NOWAIT);
3317} 4094}
3318 4095
3319static void 4096static void
3320embed_io_cb (EV_P_ ev_io *io, int revents) 4097embed_io_cb (EV_P_ ev_io *io, int revents)
3321{ 4098{
3322 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4099 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3323 4100
3324 if (ev_cb (w)) 4101 if (ev_cb (w))
3325 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4102 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3326 else 4103 else
3327 ev_loop (w->other, EVLOOP_NONBLOCK); 4104 ev_run (w->other, EVRUN_NOWAIT);
3328} 4105}
3329 4106
3330static void 4107static void
3331embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4108embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3332{ 4109{
… …
3336 EV_P = w->other; 4113 EV_P = w->other;
3337 4114
3338 while (fdchangecnt) 4115 while (fdchangecnt)
3339 { 4116 {
3340 fd_reify (EV_A); 4117 fd_reify (EV_A);
3341 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4118 ev_run (EV_A_ EVRUN_NOWAIT);
3342 } 4119 }
3343 } 4120 }
3344} 4121}
3345 4122
3346static void 4123static void
… …
3352 4129
3353 { 4130 {
3354 EV_P = w->other; 4131 EV_P = w->other;
3355 4132
3356 ev_loop_fork (EV_A); 4133 ev_loop_fork (EV_A);
3357 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4134 ev_run (EV_A_ EVRUN_NOWAIT);
3358 } 4135 }
3359 4136
3360 ev_embed_start (EV_A_ w); 4137 ev_embed_start (EV_A_ w);
3361} 4138}
3362 4139
… …
3367 ev_idle_stop (EV_A_ idle); 4144 ev_idle_stop (EV_A_ idle);
3368} 4145}
3369#endif 4146#endif
3370 4147
3371void 4148void
3372ev_embed_start (EV_P_ ev_embed *w) 4149ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3373{ 4150{
3374 if (expect_false (ev_is_active (w))) 4151 if (expect_false (ev_is_active (w)))
3375 return; 4152 return;
3376 4153
3377 { 4154 {
… …
3398 4175
3399 EV_FREQUENT_CHECK; 4176 EV_FREQUENT_CHECK;
3400} 4177}
3401 4178
3402void 4179void
3403ev_embed_stop (EV_P_ ev_embed *w) 4180ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3404{ 4181{
3405 clear_pending (EV_A_ (W)w); 4182 clear_pending (EV_A_ (W)w);
3406 if (expect_false (!ev_is_active (w))) 4183 if (expect_false (!ev_is_active (w)))
3407 return; 4184 return;
3408 4185
… …
3410 4187
3411 ev_io_stop (EV_A_ &w->io); 4188 ev_io_stop (EV_A_ &w->io);
3412 ev_prepare_stop (EV_A_ &w->prepare); 4189 ev_prepare_stop (EV_A_ &w->prepare);
3413 ev_fork_stop (EV_A_ &w->fork); 4190 ev_fork_stop (EV_A_ &w->fork);
3414 4191
4192 ev_stop (EV_A_ (W)w);
4193
3415 EV_FREQUENT_CHECK; 4194 EV_FREQUENT_CHECK;
3416} 4195}
3417#endif 4196#endif
3418 4197
3419#if EV_FORK_ENABLE 4198#if EV_FORK_ENABLE
3420void 4199void
3421ev_fork_start (EV_P_ ev_fork *w) 4200ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3422{ 4201{
3423 if (expect_false (ev_is_active (w))) 4202 if (expect_false (ev_is_active (w)))
3424 return; 4203 return;
3425 4204
3426 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
… …
3431 4210
3432 EV_FREQUENT_CHECK; 4211 EV_FREQUENT_CHECK;
3433} 4212}
3434 4213
3435void 4214void
3436ev_fork_stop (EV_P_ ev_fork *w) 4215ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3437{ 4216{
3438 clear_pending (EV_A_ (W)w); 4217 clear_pending (EV_A_ (W)w);
3439 if (expect_false (!ev_is_active (w))) 4218 if (expect_false (!ev_is_active (w)))
3440 return; 4219 return;
3441 4220
… …
3452 4231
3453 EV_FREQUENT_CHECK; 4232 EV_FREQUENT_CHECK;
3454} 4233}
3455#endif 4234#endif
3456 4235
4236#if EV_CLEANUP_ENABLE
4237void
4238ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4239{
4240 if (expect_false (ev_is_active (w)))
4241 return;
4242
4243 EV_FREQUENT_CHECK;
4244
4245 ev_start (EV_A_ (W)w, ++cleanupcnt);
4246 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4247 cleanups [cleanupcnt - 1] = w;
4248
4249 /* cleanup watchers should never keep a refcount on the loop */
4250 ev_unref (EV_A);
4251 EV_FREQUENT_CHECK;
4252}
4253
4254void
4255ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4256{
4257 clear_pending (EV_A_ (W)w);
4258 if (expect_false (!ev_is_active (w)))
4259 return;
4260
4261 EV_FREQUENT_CHECK;
4262 ev_ref (EV_A);
4263
4264 {
4265 int active = ev_active (w);
4266
4267 cleanups [active - 1] = cleanups [--cleanupcnt];
4268 ev_active (cleanups [active - 1]) = active;
4269 }
4270
4271 ev_stop (EV_A_ (W)w);
4272
4273 EV_FREQUENT_CHECK;
4274}
4275#endif
4276
3457#if EV_ASYNC_ENABLE 4277#if EV_ASYNC_ENABLE
3458void 4278void
3459ev_async_start (EV_P_ ev_async *w) 4279ev_async_start (EV_P_ ev_async *w) EV_THROW
3460{ 4280{
3461 if (expect_false (ev_is_active (w))) 4281 if (expect_false (ev_is_active (w)))
3462 return; 4282 return;
4283
4284 w->sent = 0;
3463 4285
3464 evpipe_init (EV_A); 4286 evpipe_init (EV_A);
3465 4287
3466 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3467 4289
… …
3471 4293
3472 EV_FREQUENT_CHECK; 4294 EV_FREQUENT_CHECK;
3473} 4295}
3474 4296
3475void 4297void
3476ev_async_stop (EV_P_ ev_async *w) 4298ev_async_stop (EV_P_ ev_async *w) EV_THROW
3477{ 4299{
3478 clear_pending (EV_A_ (W)w); 4300 clear_pending (EV_A_ (W)w);
3479 if (expect_false (!ev_is_active (w))) 4301 if (expect_false (!ev_is_active (w)))
3480 return; 4302 return;
3481 4303
… …
3492 4314
3493 EV_FREQUENT_CHECK; 4315 EV_FREQUENT_CHECK;
3494} 4316}
3495 4317
3496void 4318void
3497ev_async_send (EV_P_ ev_async *w) 4319ev_async_send (EV_P_ ev_async *w) EV_THROW
3498{ 4320{
3499 w->sent = 1; 4321 w->sent = 1;
3500 evpipe_write (EV_A_ &async_pending); 4322 evpipe_write (EV_A_ &async_pending);
3501} 4323}
3502#endif 4324#endif
… …
3539 4361
3540 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4362 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3541} 4363}
3542 4364
3543void 4365void
3544ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4366ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3545{ 4367{
3546 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4368 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3547 4369
3548 if (expect_false (!once)) 4370 if (expect_false (!once))
3549 { 4371 {
3550 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4372 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3551 return; 4373 return;
3552 } 4374 }
3553 4375
3554 once->cb = cb; 4376 once->cb = cb;
3555 once->arg = arg; 4377 once->arg = arg;
… …
3570} 4392}
3571 4393
3572/*****************************************************************************/ 4394/*****************************************************************************/
3573 4395
3574#if EV_WALK_ENABLE 4396#if EV_WALK_ENABLE
3575void 4397void ecb_cold
3576ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4398ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3577{ 4399{
3578 int i, j; 4400 int i, j;
3579 ev_watcher_list *wl, *wn; 4401 ev_watcher_list *wl, *wn;
3580 4402
3581 if (types & (EV_IO | EV_EMBED)) 4403 if (types & (EV_IO | EV_EMBED))
… …
3624 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4446 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3625#endif 4447#endif
3626 4448
3627#if EV_IDLE_ENABLE 4449#if EV_IDLE_ENABLE
3628 if (types & EV_IDLE) 4450 if (types & EV_IDLE)
3629 for (j = NUMPRI; i--; ) 4451 for (j = NUMPRI; j--; )
3630 for (i = idlecnt [j]; i--; ) 4452 for (i = idlecnt [j]; i--; )
3631 cb (EV_A_ EV_IDLE, idles [j][i]); 4453 cb (EV_A_ EV_IDLE, idles [j][i]);
3632#endif 4454#endif
3633 4455
3634#if EV_FORK_ENABLE 4456#if EV_FORK_ENABLE
… …
3642 if (types & EV_ASYNC) 4464 if (types & EV_ASYNC)
3643 for (i = asynccnt; i--; ) 4465 for (i = asynccnt; i--; )
3644 cb (EV_A_ EV_ASYNC, asyncs [i]); 4466 cb (EV_A_ EV_ASYNC, asyncs [i]);
3645#endif 4467#endif
3646 4468
4469#if EV_PREPARE_ENABLE
3647 if (types & EV_PREPARE) 4470 if (types & EV_PREPARE)
3648 for (i = preparecnt; i--; ) 4471 for (i = preparecnt; i--; )
3649#if EV_EMBED_ENABLE 4472# if EV_EMBED_ENABLE
3650 if (ev_cb (prepares [i]) != embed_prepare_cb) 4473 if (ev_cb (prepares [i]) != embed_prepare_cb)
3651#endif 4474# endif
3652 cb (EV_A_ EV_PREPARE, prepares [i]); 4475 cb (EV_A_ EV_PREPARE, prepares [i]);
4476#endif
3653 4477
4478#if EV_CHECK_ENABLE
3654 if (types & EV_CHECK) 4479 if (types & EV_CHECK)
3655 for (i = checkcnt; i--; ) 4480 for (i = checkcnt; i--; )
3656 cb (EV_A_ EV_CHECK, checks [i]); 4481 cb (EV_A_ EV_CHECK, checks [i]);
4482#endif
3657 4483
4484#if EV_SIGNAL_ENABLE
3658 if (types & EV_SIGNAL) 4485 if (types & EV_SIGNAL)
3659 for (i = 0; i < EV_NSIG - 1; ++i) 4486 for (i = 0; i < EV_NSIG - 1; ++i)
3660 for (wl = signals [i].head; wl; ) 4487 for (wl = signals [i].head; wl; )
3661 { 4488 {
3662 wn = wl->next; 4489 wn = wl->next;
3663 cb (EV_A_ EV_SIGNAL, wl); 4490 cb (EV_A_ EV_SIGNAL, wl);
3664 wl = wn; 4491 wl = wn;
3665 } 4492 }
4493#endif
3666 4494
4495#if EV_CHILD_ENABLE
3667 if (types & EV_CHILD) 4496 if (types & EV_CHILD)
3668 for (i = EV_PID_HASHSIZE; i--; ) 4497 for (i = (EV_PID_HASHSIZE); i--; )
3669 for (wl = childs [i]; wl; ) 4498 for (wl = childs [i]; wl; )
3670 { 4499 {
3671 wn = wl->next; 4500 wn = wl->next;
3672 cb (EV_A_ EV_CHILD, wl); 4501 cb (EV_A_ EV_CHILD, wl);
3673 wl = wn; 4502 wl = wn;
3674 } 4503 }
4504#endif
3675/* EV_STAT 0x00001000 /* stat data changed */ 4505/* EV_STAT 0x00001000 /* stat data changed */
3676/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4506/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3677} 4507}
3678#endif 4508#endif
3679 4509
3680#if EV_MULTIPLICITY 4510#if EV_MULTIPLICITY
3681 #include "ev_wrap.h" 4511 #include "ev_wrap.h"
3682#endif 4512#endif
3683 4513
3684#ifdef __cplusplus
3685}
3686#endif
3687

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