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Comparing libev/ev.c (file contents):
Revision 1.322 by root, Thu Jan 7 06:49:31 2010 UTC vs.
Revision 1.425 by root, Sun May 6 13:09:35 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>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
163 173
164#include <assert.h> 174#include <assert.h>
165#include <errno.h> 175#include <errno.h>
166#include <sys/types.h> 176#include <sys/types.h>
167#include <time.h> 177#include <time.h>
178#include <limits.h>
168 179
169#include <signal.h> 180#include <signal.h>
170 181
171#ifdef EV_H 182#ifdef EV_H
172# include EV_H 183# include EV_H
173#else 184#else
174# 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
175#endif 197#endif
176 198
177#ifndef _WIN32 199#ifndef _WIN32
178# include <sys/time.h> 200# include <sys/time.h>
179# include <sys/wait.h> 201# include <sys/wait.h>
… …
183# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
184# include <windows.h> 206# include <windows.h>
185# ifndef EV_SELECT_IS_WINSOCKET 207# ifndef EV_SELECT_IS_WINSOCKET
186# define EV_SELECT_IS_WINSOCKET 1 208# define EV_SELECT_IS_WINSOCKET 1
187# endif 209# endif
210# undef EV_AVOID_STDIO
188#endif 211#endif
212
213/* OS X, in its infinite idiocy, actually HARDCODES
214 * a limit of 1024 into their select. Where people have brains,
215 * OS X engineers apparently have a vacuum. Or maybe they were
216 * ordered to have a vacuum, or they do anything for money.
217 * This might help. Or not.
218 */
219#define _DARWIN_UNLIMITED_SELECT 1
189 220
190/* this block tries to deduce configuration from header-defined symbols and defaults */ 221/* this block tries to deduce configuration from header-defined symbols and defaults */
191 222
192/* try to deduce the maximum number of signals on this platform */ 223/* try to deduce the maximum number of signals on this platform */
193#if defined (EV_NSIG) 224#if defined EV_NSIG
194/* use what's provided */ 225/* use what's provided */
195#elif defined (NSIG) 226#elif defined NSIG
196# define EV_NSIG (NSIG) 227# define EV_NSIG (NSIG)
197#elif defined(_NSIG) 228#elif defined _NSIG
198# define EV_NSIG (_NSIG) 229# define EV_NSIG (_NSIG)
199#elif defined (SIGMAX) 230#elif defined SIGMAX
200# define EV_NSIG (SIGMAX+1) 231# define EV_NSIG (SIGMAX+1)
201#elif defined (SIG_MAX) 232#elif defined SIG_MAX
202# define EV_NSIG (SIG_MAX+1) 233# define EV_NSIG (SIG_MAX+1)
203#elif defined (_SIG_MAX) 234#elif defined _SIG_MAX
204# define EV_NSIG (_SIG_MAX+1) 235# define EV_NSIG (_SIG_MAX+1)
205#elif defined (MAXSIG) 236#elif defined MAXSIG
206# define EV_NSIG (MAXSIG+1) 237# define EV_NSIG (MAXSIG+1)
207#elif defined (MAX_SIG) 238#elif defined MAX_SIG
208# define EV_NSIG (MAX_SIG+1) 239# define EV_NSIG (MAX_SIG+1)
209#elif defined (SIGARRAYSIZE) 240#elif defined SIGARRAYSIZE
210# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
211#elif defined (_sys_nsig) 242#elif defined _sys_nsig
212# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
213#else 244#else
214# error "unable to find value for NSIG, please report" 245# error "unable to find value for NSIG, please report"
215/* to make it compile regardless, just remove the above line */ 246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
216# define EV_NSIG 65 248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
217#endif 253#endif
218 254
219#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
220# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
221# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
222# else 258# else
223# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
224# endif 260# endif
225#endif 261#endif
226 262
227#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
228# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
229# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
230# else 266# else
231# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
232# endif 268# endif
233#endif 269#endif
234 270
… …
236# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
237#endif 273#endif
238 274
239#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
240# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
241# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
242# else 278# else
243# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
244# endif 280# endif
245#endif 281#endif
246 282
247#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
248# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
249#endif 285#endif
250 286
251#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
252# ifdef _WIN32 288# ifdef _WIN32
253# define EV_USE_POLL 0 289# define EV_USE_POLL 0
254# else 290# else
255# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
256# endif 292# endif
257#endif 293#endif
258 294
259#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
260# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
261# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
262# else 298# else
263# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
264# endif 300# endif
265#endif 301#endif
266 302
… …
272# define EV_USE_PORT 0 308# define EV_USE_PORT 0
273#endif 309#endif
274 310
275#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
276# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
277# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
278# else 314# else
279# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
280# endif 316# endif
281#endif 317#endif
282 318
283#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
284# if EV_MINIMAL 320# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
285# define EV_PID_HASHSIZE 1
286# else
287# define EV_PID_HASHSIZE 16
288# endif
289#endif 321#endif
290 322
291#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
292# if EV_MINIMAL 324# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
293# define EV_INOTIFY_HASHSIZE 1
294# else
295# define EV_INOTIFY_HASHSIZE 16
296# endif
297#endif 325#endif
298 326
299#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
300# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
301# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
302# else 330# else
303# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
304# endif 332# endif
305#endif 333#endif
306 334
307#ifndef EV_USE_SIGNALFD 335#ifndef EV_USE_SIGNALFD
308# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
309# define EV_USE_SIGNALFD 1 337# define EV_USE_SIGNALFD EV_FEATURE_OS
310# else 338# else
311# define EV_USE_SIGNALFD 0 339# define EV_USE_SIGNALFD 0
312# endif 340# endif
313#endif 341#endif
314 342
… …
317# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
318# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
319#endif 347#endif
320 348
321#ifndef EV_VERIFY 349#ifndef EV_VERIFY
322# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
323#endif 351#endif
324 352
325#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
326# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
327#endif 355#endif
328 356
329#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
330# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
331#endif 359#endif
332 360
333/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
334/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
335#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
336# include <syscall.h> 364# include <sys/syscall.h>
337# ifdef SYS_clock_gettime 365# ifdef SYS_clock_gettime
338# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
339# undef EV_USE_MONOTONIC 367# undef EV_USE_MONOTONIC
340# define EV_USE_MONOTONIC 1 368# define EV_USE_MONOTONIC 1
341# else 369# else
… …
344# endif 372# endif
345#endif 373#endif
346 374
347/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 375/* this block fixes any misconfiguration where we know we run into trouble otherwise */
348 376
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
349#ifndef CLOCK_MONOTONIC 383#ifndef CLOCK_MONOTONIC
350# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
351# define EV_USE_MONOTONIC 0 385# define EV_USE_MONOTONIC 0
352#endif 386#endif
353 387
… …
360# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
361# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
362#endif 396#endif
363 397
364#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
365# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
366# include <sys/select.h> 401# include <sys/select.h>
367# endif 402# endif
368#endif 403#endif
369 404
370#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
371# include <sys/utsname.h>
372# include <sys/statfs.h> 406# include <sys/statfs.h>
373# include <sys/inotify.h> 407# include <sys/inotify.h>
374/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
375# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
376# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
393# define EFD_CLOEXEC O_CLOEXEC 427# define EFD_CLOEXEC O_CLOEXEC
394# else 428# else
395# define EFD_CLOEXEC 02000000 429# define EFD_CLOEXEC 02000000
396# endif 430# endif
397# endif 431# endif
398# ifdef __cplusplus
399extern "C" {
400# endif
401int eventfd (unsigned int initval, int flags); 432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
402# ifdef __cplusplus
403}
404# endif
405#endif 433#endif
406 434
407#if EV_USE_SIGNALFD 435#if EV_USE_SIGNALFD
408/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 436/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
409# include <stdint.h> 437# include <stdint.h>
… …
415# define SFD_CLOEXEC O_CLOEXEC 443# define SFD_CLOEXEC O_CLOEXEC
416# else 444# else
417# define SFD_CLOEXEC 02000000 445# define SFD_CLOEXEC 02000000
418# endif 446# endif
419# endif 447# endif
420# ifdef __cplusplus
421extern "C" {
422# endif
423int signalfd (int fd, const sigset_t *mask, int flags); 448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
424 449
425struct signalfd_siginfo 450struct signalfd_siginfo
426{ 451{
427 uint32_t ssi_signo; 452 uint32_t ssi_signo;
428 char pad[128 - sizeof (uint32_t)]; 453 char pad[128 - sizeof (uint32_t)];
429}; 454};
430# ifdef __cplusplus
431}
432# endif 455#endif
433#endif
434
435 456
436/**/ 457/**/
437 458
438#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
439# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
440#else 461#else
441# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
442#endif 463#endif
443 464
444/* 465/*
445 * This is used to avoid floating point rounding problems. 466 * This is used to work around floating point rounding problems.
446 * It is added to ev_rt_now when scheduling periodics
447 * to ensure progress, time-wise, even when rounding
448 * errors are against us.
449 * This value is good at least till the year 4000. 467 * This value is good at least till the year 4000.
450 * Better solutions welcome.
451 */ 468 */
452#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
470/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
453 471
454#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 472#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
455#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 473#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
456 474
475#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
476#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
477
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */
480/*
481 * libecb - http://software.schmorp.de/pkg/libecb
482 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved.
486 *
487 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met:
489 *
490 * 1. Redistributions of source code must retain the above copyright notice,
491 * this list of conditions and the following disclaimer.
492 *
493 * 2. Redistributions in binary form must reproduce the above copyright
494 * notice, this list of conditions and the following disclaimer in the
495 * documentation and/or other materials provided with the distribution.
496 *
497 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
498 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
499 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
500 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
501 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE.
507 */
508
509#ifndef ECB_H
510#define ECB_H
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
457#if __GNUC__ >= 4 519 #if __GNUC__
458# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
459# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
460#else 526#else
461# define expect(expr,value) (expr) 527 #include <inttypes.h>
462# define noinline
463# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
464# define inline
465# endif 528#endif
529
530/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place.
536 */
537#ifndef ECB_GCC_VERSION
538 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0
540 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
466#endif 542 #endif
543#endif
467 544
545/*****************************************************************************/
546
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549
550#if ECB_NO_THREADS
551# define ECB_NO_SMP 1
552#endif
553
554#if ECB_NO_THREADS || ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0)
556#endif
557
558#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined __mips__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
584 #elif defined __alpha__
585 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
586 #endif
587 #endif
588#endif
589
590#ifndef ECB_MEMORY_FENCE
591 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
592 #define ECB_MEMORY_FENCE __sync_synchronize ()
593 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
594 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
595 #elif _MSC_VER >= 1400 /* VC++ 2005 */
596 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
597 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
598 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
599 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
600 #elif defined _WIN32
601 #include <WinNT.h>
602 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
603 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
604 #include <mbarrier.h>
605 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
606 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
607 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
608 #elif __xlC__
609 #define ECB_MEMORY_FENCE __sync ()
610 #endif
611#endif
612
613#ifndef ECB_MEMORY_FENCE
614 #if !ECB_AVOID_PTHREADS
615 /*
616 * if you get undefined symbol references to pthread_mutex_lock,
617 * or failure to find pthread.h, then you should implement
618 * the ECB_MEMORY_FENCE operations for your cpu/compiler
619 * OR provide pthread.h and link against the posix thread library
620 * of your system.
621 */
622 #include <pthread.h>
623 #define ECB_NEEDS_PTHREADS 1
624 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
625
626 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
627 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
628 #endif
629#endif
630
631#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
633#endif
634
635#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
636 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
637#endif
638
639/*****************************************************************************/
640
641#define ECB_C99 (__STDC_VERSION__ >= 199901L)
642
643#if __cplusplus
644 #define ecb_inline static inline
645#elif ECB_GCC_VERSION(2,5)
646 #define ecb_inline static __inline__
647#elif ECB_C99
648 #define ecb_inline static inline
649#else
650 #define ecb_inline static
651#endif
652
653#if ECB_GCC_VERSION(3,3)
654 #define ecb_restrict __restrict__
655#elif ECB_C99
656 #define ecb_restrict restrict
657#else
658 #define ecb_restrict
659#endif
660
661typedef int ecb_bool;
662
663#define ECB_CONCAT_(a, b) a ## b
664#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
665#define ECB_STRINGIFY_(a) # a
666#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
667
668#define ecb_function_ ecb_inline
669
670#if ECB_GCC_VERSION(3,1)
671 #define ecb_attribute(attrlist) __attribute__(attrlist)
672 #define ecb_is_constant(expr) __builtin_constant_p (expr)
673 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
674 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
675#else
676 #define ecb_attribute(attrlist)
677 #define ecb_is_constant(expr) 0
678 #define ecb_expect(expr,value) (expr)
679 #define ecb_prefetch(addr,rw,locality)
680#endif
681
682/* no emulation for ecb_decltype */
683#if ECB_GCC_VERSION(4,5)
684 #define ecb_decltype(x) __decltype(x)
685#elif ECB_GCC_VERSION(3,0)
686 #define ecb_decltype(x) __typeof(x)
687#endif
688
689#define ecb_noinline ecb_attribute ((__noinline__))
690#define ecb_noreturn ecb_attribute ((__noreturn__))
691#define ecb_unused ecb_attribute ((__unused__))
692#define ecb_const ecb_attribute ((__const__))
693#define ecb_pure ecb_attribute ((__pure__))
694
695#if ECB_GCC_VERSION(4,3)
696 #define ecb_artificial ecb_attribute ((__artificial__))
697 #define ecb_hot ecb_attribute ((__hot__))
698 #define ecb_cold ecb_attribute ((__cold__))
699#else
700 #define ecb_artificial
701 #define ecb_hot
702 #define ecb_cold
703#endif
704
705/* put around conditional expressions if you are very sure that the */
706/* expression is mostly true or mostly false. note that these return */
707/* booleans, not the expression. */
468#define expect_false(expr) expect ((expr) != 0, 0) 708#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
469#define expect_true(expr) expect ((expr) != 0, 1) 709#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
710/* for compatibility to the rest of the world */
711#define ecb_likely(expr) ecb_expect_true (expr)
712#define ecb_unlikely(expr) ecb_expect_false (expr)
713
714/* count trailing zero bits and count # of one bits */
715#if ECB_GCC_VERSION(3,4)
716 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
717 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
718 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
719 #define ecb_ctz32(x) __builtin_ctz (x)
720 #define ecb_ctz64(x) __builtin_ctzll (x)
721 #define ecb_popcount32(x) __builtin_popcount (x)
722 /* no popcountll */
723#else
724 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
725 ecb_function_ int
726 ecb_ctz32 (uint32_t x)
727 {
728 int r = 0;
729
730 x &= ~x + 1; /* this isolates the lowest bit */
731
732#if ECB_branchless_on_i386
733 r += !!(x & 0xaaaaaaaa) << 0;
734 r += !!(x & 0xcccccccc) << 1;
735 r += !!(x & 0xf0f0f0f0) << 2;
736 r += !!(x & 0xff00ff00) << 3;
737 r += !!(x & 0xffff0000) << 4;
738#else
739 if (x & 0xaaaaaaaa) r += 1;
740 if (x & 0xcccccccc) r += 2;
741 if (x & 0xf0f0f0f0) r += 4;
742 if (x & 0xff00ff00) r += 8;
743 if (x & 0xffff0000) r += 16;
744#endif
745
746 return r;
747 }
748
749 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
750 ecb_function_ int
751 ecb_ctz64 (uint64_t x)
752 {
753 int shift = x & 0xffffffffU ? 0 : 32;
754 return ecb_ctz32 (x >> shift) + shift;
755 }
756
757 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
758 ecb_function_ int
759 ecb_popcount32 (uint32_t x)
760 {
761 x -= (x >> 1) & 0x55555555;
762 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
763 x = ((x >> 4) + x) & 0x0f0f0f0f;
764 x *= 0x01010101;
765
766 return x >> 24;
767 }
768
769 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
770 ecb_function_ int ecb_ld32 (uint32_t x)
771 {
772 int r = 0;
773
774 if (x >> 16) { x >>= 16; r += 16; }
775 if (x >> 8) { x >>= 8; r += 8; }
776 if (x >> 4) { x >>= 4; r += 4; }
777 if (x >> 2) { x >>= 2; r += 2; }
778 if (x >> 1) { r += 1; }
779
780 return r;
781 }
782
783 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
784 ecb_function_ int ecb_ld64 (uint64_t x)
785 {
786 int r = 0;
787
788 if (x >> 32) { x >>= 32; r += 32; }
789
790 return r + ecb_ld32 (x);
791 }
792#endif
793
794ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796{
797 return ( (x * 0x0802U & 0x22110U)
798 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
799}
800
801ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
803{
804 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
805 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
806 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
807 x = ( x >> 8 ) | ( x << 8);
808
809 return x;
810}
811
812ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
814{
815 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
816 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
817 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
818 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
819 x = ( x >> 16 ) | ( x << 16);
820
821 return x;
822}
823
824/* popcount64 is only available on 64 bit cpus as gcc builtin */
825/* so for this version we are lazy */
826ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
827ecb_function_ int
828ecb_popcount64 (uint64_t x)
829{
830 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
831}
832
833ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
834ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
841
842ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
843ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
844ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
845ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
846ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
847ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
848ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
849ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
850
851#if ECB_GCC_VERSION(4,3)
852 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
853 #define ecb_bswap32(x) __builtin_bswap32 (x)
854 #define ecb_bswap64(x) __builtin_bswap64 (x)
855#else
856 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
857 ecb_function_ uint16_t
858 ecb_bswap16 (uint16_t x)
859 {
860 return ecb_rotl16 (x, 8);
861 }
862
863 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
864 ecb_function_ uint32_t
865 ecb_bswap32 (uint32_t x)
866 {
867 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
868 }
869
870 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
871 ecb_function_ uint64_t
872 ecb_bswap64 (uint64_t x)
873 {
874 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
875 }
876#endif
877
878#if ECB_GCC_VERSION(4,5)
879 #define ecb_unreachable() __builtin_unreachable ()
880#else
881 /* this seems to work fine, but gcc always emits a warning for it :/ */
882 ecb_inline void ecb_unreachable (void) ecb_noreturn;
883 ecb_inline void ecb_unreachable (void) { }
884#endif
885
886/* try to tell the compiler that some condition is definitely true */
887#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
888
889ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
890ecb_inline unsigned char
891ecb_byteorder_helper (void)
892{
893 const uint32_t u = 0x11223344;
894 return *(unsigned char *)&u;
895}
896
897ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
898ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
899ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
900ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
901
902#if ECB_GCC_VERSION(3,0) || ECB_C99
903 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
904#else
905 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
906#endif
907
908#if __cplusplus
909 template<typename T>
910 static inline T ecb_div_rd (T val, T div)
911 {
912 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
913 }
914 template<typename T>
915 static inline T ecb_div_ru (T val, T div)
916 {
917 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
918 }
919#else
920 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
921 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
922#endif
923
924#if ecb_cplusplus_does_not_suck
925 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
926 template<typename T, int N>
927 static inline int ecb_array_length (const T (&arr)[N])
928 {
929 return N;
930 }
931#else
932 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
933#endif
934
935#endif
936
937/* ECB.H END */
938
939#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
940/* if your architecture doesn't need memory fences, e.g. because it is
941 * single-cpu/core, or if you use libev in a project that doesn't use libev
942 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
943 * libev, in which cases the memory fences become nops.
944 * alternatively, you can remove this #error and link against libpthread,
945 * which will then provide the memory fences.
946 */
947# error "memory fences not defined for your architecture, please report"
948#endif
949
950#ifndef ECB_MEMORY_FENCE
951# define ECB_MEMORY_FENCE do { } while (0)
952# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
953# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
954#endif
955
956#define expect_false(cond) ecb_expect_false (cond)
957#define expect_true(cond) ecb_expect_true (cond)
958#define noinline ecb_noinline
959
470#define inline_size static inline 960#define inline_size ecb_inline
471 961
472#if EV_MINIMAL 962#if EV_FEATURE_CODE
963# define inline_speed ecb_inline
964#else
473# define inline_speed static noinline 965# define inline_speed static noinline
474#else
475# define inline_speed static inline
476#endif 966#endif
477 967
478#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
479 969
480#if EV_MINPRI == EV_MAXPRI 970#if EV_MINPRI == EV_MAXPRI
… …
493#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
494#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
495 985
496#if EV_USE_REALTIME 986#if EV_USE_REALTIME
497/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 987/* sig_atomic_t is used to avoid per-thread variables or locking but still */
498/* giving it a reasonably high chance of working on typical architetcures */ 988/* giving it a reasonably high chance of working on typical architectures */
499static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
500#endif 990#endif
501 991
502#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
503static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
517# include "ev_win32.c" 1007# include "ev_win32.c"
518#endif 1008#endif
519 1009
520/*****************************************************************************/ 1010/*****************************************************************************/
521 1011
1012/* define a suitable floor function (only used by periodics atm) */
1013
1014#if EV_USE_FLOOR
1015# include <math.h>
1016# define ev_floor(v) floor (v)
1017#else
1018
1019#include <float.h>
1020
1021/* a floor() replacement function, should be independent of ev_tstamp type */
1022static ev_tstamp noinline
1023ev_floor (ev_tstamp v)
1024{
1025 /* the choice of shift factor is not terribly important */
1026#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1027 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1028#else
1029 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1030#endif
1031
1032 /* argument too large for an unsigned long? */
1033 if (expect_false (v >= shift))
1034 {
1035 ev_tstamp f;
1036
1037 if (v == v - 1.)
1038 return v; /* very large number */
1039
1040 f = shift * ev_floor (v * (1. / shift));
1041 return f + ev_floor (v - f);
1042 }
1043
1044 /* special treatment for negative args? */
1045 if (expect_false (v < 0.))
1046 {
1047 ev_tstamp f = -ev_floor (-v);
1048
1049 return f - (f == v ? 0 : 1);
1050 }
1051
1052 /* fits into an unsigned long */
1053 return (unsigned long)v;
1054}
1055
1056#endif
1057
1058/*****************************************************************************/
1059
1060#ifdef __linux
1061# include <sys/utsname.h>
1062#endif
1063
1064static unsigned int noinline ecb_cold
1065ev_linux_version (void)
1066{
1067#ifdef __linux
1068 unsigned int v = 0;
1069 struct utsname buf;
1070 int i;
1071 char *p = buf.release;
1072
1073 if (uname (&buf))
1074 return 0;
1075
1076 for (i = 3+1; --i; )
1077 {
1078 unsigned int c = 0;
1079
1080 for (;;)
1081 {
1082 if (*p >= '0' && *p <= '9')
1083 c = c * 10 + *p++ - '0';
1084 else
1085 {
1086 p += *p == '.';
1087 break;
1088 }
1089 }
1090
1091 v = (v << 8) | c;
1092 }
1093
1094 return v;
1095#else
1096 return 0;
1097#endif
1098}
1099
1100/*****************************************************************************/
1101
1102#if EV_AVOID_STDIO
1103static void noinline ecb_cold
1104ev_printerr (const char *msg)
1105{
1106 write (STDERR_FILENO, msg, strlen (msg));
1107}
1108#endif
1109
522static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
523 1111
524void 1112void ecb_cold
525ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
526{ 1114{
527 syserr_cb = cb; 1115 syserr_cb = cb;
528} 1116}
529 1117
530static void noinline 1118static void noinline ecb_cold
531ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
532{ 1120{
533 if (!msg) 1121 if (!msg)
534 msg = "(libev) system error"; 1122 msg = "(libev) system error";
535 1123
536 if (syserr_cb) 1124 if (syserr_cb)
537 syserr_cb (msg); 1125 syserr_cb (msg);
538 else 1126 else
539 { 1127 {
1128#if EV_AVOID_STDIO
1129 ev_printerr (msg);
1130 ev_printerr (": ");
1131 ev_printerr (strerror (errno));
1132 ev_printerr ("\n");
1133#else
540 perror (msg); 1134 perror (msg);
1135#endif
541 abort (); 1136 abort ();
542 } 1137 }
543} 1138}
544 1139
545static void * 1140static void *
546ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
547{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
548 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
549 * implement realloc (x, 0) (as required by both ansi c-98 and 1147 * implement realloc (x, 0) (as required by both ansi c-89 and
550 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
551 */ 1149 */
552 1150
553 if (size) 1151 if (size)
554 return realloc (ptr, size); 1152 return realloc (ptr, size);
555 1153
556 free (ptr); 1154 free (ptr);
557 return 0; 1155 return 0;
1156#endif
558} 1157}
559 1158
560static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
561 1160
562void 1161void ecb_cold
563ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
564{ 1163{
565 alloc = cb; 1164 alloc = cb;
566} 1165}
567 1166
568inline_speed void * 1167inline_speed void *
… …
570{ 1169{
571 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
572 1171
573 if (!ptr && size) 1172 if (!ptr && size)
574 { 1173 {
1174#if EV_AVOID_STDIO
1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1176#else
575 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1178#endif
576 abort (); 1179 abort ();
577 } 1180 }
578 1181
579 return ptr; 1182 return ptr;
580} 1183}
… …
596 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1199 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
597 unsigned char unused; 1200 unsigned char unused;
598#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
599 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
600#endif 1203#endif
601#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
602 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
603#endif 1209#endif
604} ANFD; 1210} ANFD;
605 1211
606/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
607typedef struct 1213typedef struct
… …
649 #undef VAR 1255 #undef VAR
650 }; 1256 };
651 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
652 1258
653 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
654 struct ev_loop *ev_default_loop_ptr; 1260 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
655 1261
656#else 1262#else
657 1263
658 ev_tstamp ev_rt_now; 1264 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
659 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
660 #include "ev_vars.h" 1266 #include "ev_vars.h"
661 #undef VAR 1267 #undef VAR
662 1268
663 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
664 1270
665#endif 1271#endif
666 1272
667#if EV_MINIMAL < 2 1273#if EV_FEATURE_API
668# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1274# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
669# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1275# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
670# define EV_INVOKE_PENDING invoke_cb (EV_A) 1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
671#else 1277#else
672# define EV_RELEASE_CB (void)0 1278# define EV_RELEASE_CB (void)0
673# define EV_ACQUIRE_CB (void)0 1279# define EV_ACQUIRE_CB (void)0
674# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
675#endif 1281#endif
676 1282
677#define EVUNLOOP_RECURSE 0x80 1283#define EVBREAK_RECURSE 0x80
678 1284
679/*****************************************************************************/ 1285/*****************************************************************************/
680 1286
681#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
682ev_tstamp 1288ev_tstamp
683ev_time (void) 1289ev_time (void) EV_THROW
684{ 1290{
685#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
686 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
687 { 1293 {
688 struct timespec ts; 1294 struct timespec ts;
… …
712 return ev_time (); 1318 return ev_time ();
713} 1319}
714 1320
715#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
716ev_tstamp 1322ev_tstamp
717ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
718{ 1324{
719 return ev_rt_now; 1325 return ev_rt_now;
720} 1326}
721#endif 1327#endif
722 1328
723void 1329void
724ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
725{ 1331{
726 if (delay > 0.) 1332 if (delay > 0.)
727 { 1333 {
728#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
729 struct timespec ts; 1335 struct timespec ts;
730 1336
731 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
732 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
733
734 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
735#elif defined(_WIN32) 1339#elif defined _WIN32
736 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
737#else 1341#else
738 struct timeval tv; 1342 struct timeval tv;
739 1343
740 tv.tv_sec = (time_t)delay;
741 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
742
743 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
744 /* something not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
745 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
746 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
747#endif 1349#endif
748 } 1350 }
749} 1351}
750 1352
751/*****************************************************************************/ 1353/*****************************************************************************/
752 1354
753#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1355#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
754 1356
755/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
756/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
757inline_size int 1359inline_size int
758array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
759{ 1361{
760 int ncur = cur + 1; 1362 int ncur = cur + 1;
761 1363
762 do 1364 do
763 ncur <<= 1; 1365 ncur <<= 1;
764 while (cnt > ncur); 1366 while (cnt > ncur);
765 1367
766 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1368 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
767 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
768 { 1370 {
769 ncur *= elem; 1371 ncur *= elem;
770 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1372 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
771 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
773 } 1375 }
774 1376
775 return ncur; 1377 return ncur;
776} 1378}
777 1379
778static noinline void * 1380static void * noinline ecb_cold
779array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
780{ 1382{
781 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
782 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
783} 1385}
… …
786 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
787 1389
788#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
789 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
790 { \ 1392 { \
791 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
792 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
793 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
794 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
795 } 1397 }
796 1398
… …
814pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
815{ 1417{
816} 1418}
817 1419
818void noinline 1420void noinline
819ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
820{ 1422{
821 W w_ = (W)w; 1423 W w_ = (W)w;
822 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
823 1425
824 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
828 w_->pending = ++pendingcnt [pri]; 1430 w_->pending = ++pendingcnt [pri];
829 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1431 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
830 pendings [pri][w_->pending - 1].w = w_; 1432 pendings [pri][w_->pending - 1].w = w_;
831 pendings [pri][w_->pending - 1].events = revents; 1433 pendings [pri][w_->pending - 1].events = revents;
832 } 1434 }
1435
1436 pendingpri = NUMPRI - 1;
833} 1437}
834 1438
835inline_speed void 1439inline_speed void
836feed_reverse (EV_P_ W w) 1440feed_reverse (EV_P_ W w)
837{ 1441{
… …
857} 1461}
858 1462
859/*****************************************************************************/ 1463/*****************************************************************************/
860 1464
861inline_speed void 1465inline_speed void
862fd_event_nc (EV_P_ int fd, int revents) 1466fd_event_nocheck (EV_P_ int fd, int revents)
863{ 1467{
864 ANFD *anfd = anfds + fd; 1468 ANFD *anfd = anfds + fd;
865 ev_io *w; 1469 ev_io *w;
866 1470
867 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1471 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
879fd_event (EV_P_ int fd, int revents) 1483fd_event (EV_P_ int fd, int revents)
880{ 1484{
881 ANFD *anfd = anfds + fd; 1485 ANFD *anfd = anfds + fd;
882 1486
883 if (expect_true (!anfd->reify)) 1487 if (expect_true (!anfd->reify))
884 fd_event_nc (EV_A_ fd, revents); 1488 fd_event_nocheck (EV_A_ fd, revents);
885} 1489}
886 1490
887void 1491void
888ev_feed_fd_event (EV_P_ int fd, int revents) 1492ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
889{ 1493{
890 if (fd >= 0 && fd < anfdmax) 1494 if (fd >= 0 && fd < anfdmax)
891 fd_event_nc (EV_A_ fd, revents); 1495 fd_event_nocheck (EV_A_ fd, revents);
892} 1496}
893 1497
894/* make sure the external fd watch events are in-sync */ 1498/* make sure the external fd watch events are in-sync */
895/* with the kernel/libev internal state */ 1499/* with the kernel/libev internal state */
896inline_size void 1500inline_size void
897fd_reify (EV_P) 1501fd_reify (EV_P)
898{ 1502{
899 int i; 1503 int i;
900 1504
1505#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1506 for (i = 0; i < fdchangecnt; ++i)
1507 {
1508 int fd = fdchanges [i];
1509 ANFD *anfd = anfds + fd;
1510
1511 if (anfd->reify & EV__IOFDSET && anfd->head)
1512 {
1513 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1514
1515 if (handle != anfd->handle)
1516 {
1517 unsigned long arg;
1518
1519 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1520
1521 /* handle changed, but fd didn't - we need to do it in two steps */
1522 backend_modify (EV_A_ fd, anfd->events, 0);
1523 anfd->events = 0;
1524 anfd->handle = handle;
1525 }
1526 }
1527 }
1528#endif
1529
901 for (i = 0; i < fdchangecnt; ++i) 1530 for (i = 0; i < fdchangecnt; ++i)
902 { 1531 {
903 int fd = fdchanges [i]; 1532 int fd = fdchanges [i];
904 ANFD *anfd = anfds + fd; 1533 ANFD *anfd = anfds + fd;
905 ev_io *w; 1534 ev_io *w;
906 1535
907 unsigned char events = 0; 1536 unsigned char o_events = anfd->events;
1537 unsigned char o_reify = anfd->reify;
908 1538
909 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1539 anfd->reify = 0;
910 events |= (unsigned char)w->events;
911 1540
912#if EV_SELECT_IS_WINSOCKET 1541 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
913 if (events)
914 { 1542 {
915 unsigned long arg; 1543 anfd->events = 0;
916 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1544
917 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1545 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1546 anfd->events |= (unsigned char)w->events;
1547
1548 if (o_events != anfd->events)
1549 o_reify = EV__IOFDSET; /* actually |= */
918 } 1550 }
919#endif
920 1551
921 { 1552 if (o_reify & EV__IOFDSET)
922 unsigned char o_events = anfd->events;
923 unsigned char o_reify = anfd->reify;
924
925 anfd->reify = 0;
926 anfd->events = events;
927
928 if (o_events != events || o_reify & EV__IOFDSET)
929 backend_modify (EV_A_ fd, o_events, events); 1553 backend_modify (EV_A_ fd, o_events, anfd->events);
930 }
931 } 1554 }
932 1555
933 fdchangecnt = 0; 1556 fdchangecnt = 0;
934} 1557}
935 1558
… …
947 fdchanges [fdchangecnt - 1] = fd; 1570 fdchanges [fdchangecnt - 1] = fd;
948 } 1571 }
949} 1572}
950 1573
951/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1574/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
952inline_speed void 1575inline_speed void ecb_cold
953fd_kill (EV_P_ int fd) 1576fd_kill (EV_P_ int fd)
954{ 1577{
955 ev_io *w; 1578 ev_io *w;
956 1579
957 while ((w = (ev_io *)anfds [fd].head)) 1580 while ((w = (ev_io *)anfds [fd].head))
… …
959 ev_io_stop (EV_A_ w); 1582 ev_io_stop (EV_A_ w);
960 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1583 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
961 } 1584 }
962} 1585}
963 1586
964/* check whether the given fd is atcually valid, for error recovery */ 1587/* check whether the given fd is actually valid, for error recovery */
965inline_size int 1588inline_size int ecb_cold
966fd_valid (int fd) 1589fd_valid (int fd)
967{ 1590{
968#ifdef _WIN32 1591#ifdef _WIN32
969 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1592 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
970#else 1593#else
971 return fcntl (fd, F_GETFD) != -1; 1594 return fcntl (fd, F_GETFD) != -1;
972#endif 1595#endif
973} 1596}
974 1597
975/* called on EBADF to verify fds */ 1598/* called on EBADF to verify fds */
976static void noinline 1599static void noinline ecb_cold
977fd_ebadf (EV_P) 1600fd_ebadf (EV_P)
978{ 1601{
979 int fd; 1602 int fd;
980 1603
981 for (fd = 0; fd < anfdmax; ++fd) 1604 for (fd = 0; fd < anfdmax; ++fd)
… …
983 if (!fd_valid (fd) && errno == EBADF) 1606 if (!fd_valid (fd) && errno == EBADF)
984 fd_kill (EV_A_ fd); 1607 fd_kill (EV_A_ fd);
985} 1608}
986 1609
987/* called on ENOMEM in select/poll to kill some fds and retry */ 1610/* called on ENOMEM in select/poll to kill some fds and retry */
988static void noinline 1611static void noinline ecb_cold
989fd_enomem (EV_P) 1612fd_enomem (EV_P)
990{ 1613{
991 int fd; 1614 int fd;
992 1615
993 for (fd = anfdmax; fd--; ) 1616 for (fd = anfdmax; fd--; )
… …
1011 anfds [fd].emask = 0; 1634 anfds [fd].emask = 0;
1012 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1635 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1013 } 1636 }
1014} 1637}
1015 1638
1639/* used to prepare libev internal fd's */
1640/* this is not fork-safe */
1641inline_speed void
1642fd_intern (int fd)
1643{
1644#ifdef _WIN32
1645 unsigned long arg = 1;
1646 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1647#else
1648 fcntl (fd, F_SETFD, FD_CLOEXEC);
1649 fcntl (fd, F_SETFL, O_NONBLOCK);
1650#endif
1651}
1652
1016/*****************************************************************************/ 1653/*****************************************************************************/
1017 1654
1018/* 1655/*
1019 * the heap functions want a real array index. array index 0 uis guaranteed to not 1656 * the heap functions want a real array index. array index 0 is guaranteed to not
1020 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1657 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1021 * the branching factor of the d-tree. 1658 * the branching factor of the d-tree.
1022 */ 1659 */
1023 1660
1024/* 1661/*
… …
1172 1809
1173static ANSIG signals [EV_NSIG - 1]; 1810static ANSIG signals [EV_NSIG - 1];
1174 1811
1175/*****************************************************************************/ 1812/*****************************************************************************/
1176 1813
1177/* used to prepare libev internal fd's */ 1814#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1178/* this is not fork-safe */
1179inline_speed void
1180fd_intern (int fd)
1181{
1182#ifdef _WIN32
1183 unsigned long arg = 1;
1184 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1185#else
1186 fcntl (fd, F_SETFD, FD_CLOEXEC);
1187 fcntl (fd, F_SETFL, O_NONBLOCK);
1188#endif
1189}
1190 1815
1191static void noinline 1816static void noinline ecb_cold
1192evpipe_init (EV_P) 1817evpipe_init (EV_P)
1193{ 1818{
1194 if (!ev_is_active (&pipe_w)) 1819 if (!ev_is_active (&pipe_w))
1195 { 1820 {
1196#if EV_USE_EVENTFD 1821# if EV_USE_EVENTFD
1197 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1822 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1198 if (evfd < 0 && errno == EINVAL) 1823 if (evfd < 0 && errno == EINVAL)
1199 evfd = eventfd (0, 0); 1824 evfd = eventfd (0, 0);
1200 1825
1201 if (evfd >= 0) 1826 if (evfd >= 0)
… …
1203 evpipe [0] = -1; 1828 evpipe [0] = -1;
1204 fd_intern (evfd); /* doing it twice doesn't hurt */ 1829 fd_intern (evfd); /* doing it twice doesn't hurt */
1205 ev_io_set (&pipe_w, evfd, EV_READ); 1830 ev_io_set (&pipe_w, evfd, EV_READ);
1206 } 1831 }
1207 else 1832 else
1208#endif 1833# endif
1209 { 1834 {
1210 while (pipe (evpipe)) 1835 while (pipe (evpipe))
1211 ev_syserr ("(libev) error creating signal/async pipe"); 1836 ev_syserr ("(libev) error creating signal/async pipe");
1212 1837
1213 fd_intern (evpipe [0]); 1838 fd_intern (evpipe [0]);
… …
1218 ev_io_start (EV_A_ &pipe_w); 1843 ev_io_start (EV_A_ &pipe_w);
1219 ev_unref (EV_A); /* watcher should not keep loop alive */ 1844 ev_unref (EV_A); /* watcher should not keep loop alive */
1220 } 1845 }
1221} 1846}
1222 1847
1223inline_size void 1848inline_speed void
1224evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1849evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1225{ 1850{
1226 if (!*flag) 1851 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1852
1853 if (expect_true (*flag))
1854 return;
1855
1856 *flag = 1;
1857
1858 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1859
1860 pipe_write_skipped = 1;
1861
1862 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1863
1864 if (pipe_write_wanted)
1227 { 1865 {
1866 int old_errno;
1867
1868 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1869
1228 int old_errno = errno; /* save errno because write might clobber it */ 1870 old_errno = errno; /* save errno because write will clobber it */
1229
1230 *flag = 1;
1231 1871
1232#if EV_USE_EVENTFD 1872#if EV_USE_EVENTFD
1233 if (evfd >= 0) 1873 if (evfd >= 0)
1234 { 1874 {
1235 uint64_t counter = 1; 1875 uint64_t counter = 1;
1236 write (evfd, &counter, sizeof (uint64_t)); 1876 write (evfd, &counter, sizeof (uint64_t));
1237 } 1877 }
1238 else 1878 else
1239#endif 1879#endif
1880 {
1881 /* win32 people keep sending patches that change this write() to send() */
1882 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1883 /* so when you think this write should be a send instead, please find out */
1884 /* where your send() is from - it's definitely not the microsoft send, and */
1885 /* tell me. thank you. */
1886 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1887 /* check the ev documentation on how to use this flag */
1240 write (evpipe [1], &old_errno, 1); 1888 write (evpipe [1], &(evpipe [1]), 1);
1889 }
1241 1890
1242 errno = old_errno; 1891 errno = old_errno;
1243 } 1892 }
1244} 1893}
1245 1894
… …
1248static void 1897static void
1249pipecb (EV_P_ ev_io *iow, int revents) 1898pipecb (EV_P_ ev_io *iow, int revents)
1250{ 1899{
1251 int i; 1900 int i;
1252 1901
1902 if (revents & EV_READ)
1903 {
1253#if EV_USE_EVENTFD 1904#if EV_USE_EVENTFD
1254 if (evfd >= 0) 1905 if (evfd >= 0)
1255 { 1906 {
1256 uint64_t counter; 1907 uint64_t counter;
1257 read (evfd, &counter, sizeof (uint64_t)); 1908 read (evfd, &counter, sizeof (uint64_t));
1258 } 1909 }
1259 else 1910 else
1260#endif 1911#endif
1261 { 1912 {
1262 char dummy; 1913 char dummy;
1914 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1263 read (evpipe [0], &dummy, 1); 1915 read (evpipe [0], &dummy, 1);
1916 }
1264 } 1917 }
1265 1918
1919 pipe_write_skipped = 0;
1920
1921 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1922
1923#if EV_SIGNAL_ENABLE
1266 if (sig_pending) 1924 if (sig_pending)
1267 { 1925 {
1268 sig_pending = 0; 1926 sig_pending = 0;
1927
1928 ECB_MEMORY_FENCE_RELEASE;
1269 1929
1270 for (i = EV_NSIG - 1; i--; ) 1930 for (i = EV_NSIG - 1; i--; )
1271 if (expect_false (signals [i].pending)) 1931 if (expect_false (signals [i].pending))
1272 ev_feed_signal_event (EV_A_ i + 1); 1932 ev_feed_signal_event (EV_A_ i + 1);
1273 } 1933 }
1934#endif
1274 1935
1275#if EV_ASYNC_ENABLE 1936#if EV_ASYNC_ENABLE
1276 if (async_pending) 1937 if (async_pending)
1277 { 1938 {
1278 async_pending = 0; 1939 async_pending = 0;
1940
1941 ECB_MEMORY_FENCE_RELEASE;
1279 1942
1280 for (i = asynccnt; i--; ) 1943 for (i = asynccnt; i--; )
1281 if (asyncs [i]->sent) 1944 if (asyncs [i]->sent)
1282 { 1945 {
1283 asyncs [i]->sent = 0; 1946 asyncs [i]->sent = 0;
… …
1287#endif 1950#endif
1288} 1951}
1289 1952
1290/*****************************************************************************/ 1953/*****************************************************************************/
1291 1954
1955void
1956ev_feed_signal (int signum) EV_THROW
1957{
1958#if EV_MULTIPLICITY
1959 EV_P = signals [signum - 1].loop;
1960
1961 if (!EV_A)
1962 return;
1963#endif
1964
1965 if (!ev_active (&pipe_w))
1966 return;
1967
1968 signals [signum - 1].pending = 1;
1969 evpipe_write (EV_A_ &sig_pending);
1970}
1971
1292static void 1972static void
1293ev_sighandler (int signum) 1973ev_sighandler (int signum)
1294{ 1974{
1295#if EV_MULTIPLICITY
1296 EV_P = signals [signum - 1].loop;
1297#endif
1298
1299#ifdef _WIN32 1975#ifdef _WIN32
1300 signal (signum, ev_sighandler); 1976 signal (signum, ev_sighandler);
1301#endif 1977#endif
1302 1978
1303 signals [signum - 1].pending = 1; 1979 ev_feed_signal (signum);
1304 evpipe_write (EV_A_ &sig_pending);
1305} 1980}
1306 1981
1307void noinline 1982void noinline
1308ev_feed_signal_event (EV_P_ int signum) 1983ev_feed_signal_event (EV_P_ int signum) EV_THROW
1309{ 1984{
1310 WL w; 1985 WL w;
1311 1986
1312 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1987 if (expect_false (signum <= 0 || signum > EV_NSIG))
1313 return; 1988 return;
… …
1346 break; 2021 break;
1347 } 2022 }
1348} 2023}
1349#endif 2024#endif
1350 2025
2026#endif
2027
1351/*****************************************************************************/ 2028/*****************************************************************************/
1352 2029
2030#if EV_CHILD_ENABLE
1353static WL childs [EV_PID_HASHSIZE]; 2031static WL childs [EV_PID_HASHSIZE];
1354
1355#ifndef _WIN32
1356 2032
1357static ev_signal childev; 2033static ev_signal childev;
1358 2034
1359#ifndef WIFCONTINUED 2035#ifndef WIFCONTINUED
1360# define WIFCONTINUED(status) 0 2036# define WIFCONTINUED(status) 0
… …
1365child_reap (EV_P_ int chain, int pid, int status) 2041child_reap (EV_P_ int chain, int pid, int status)
1366{ 2042{
1367 ev_child *w; 2043 ev_child *w;
1368 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2044 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1369 2045
1370 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2046 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1371 { 2047 {
1372 if ((w->pid == pid || !w->pid) 2048 if ((w->pid == pid || !w->pid)
1373 && (!traced || (w->flags & 1))) 2049 && (!traced || (w->flags & 1)))
1374 { 2050 {
1375 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2051 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1400 /* make sure we are called again until all children have been reaped */ 2076 /* make sure we are called again until all children have been reaped */
1401 /* we need to do it this way so that the callback gets called before we continue */ 2077 /* we need to do it this way so that the callback gets called before we continue */
1402 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2078 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1403 2079
1404 child_reap (EV_A_ pid, pid, status); 2080 child_reap (EV_A_ pid, pid, status);
1405 if (EV_PID_HASHSIZE > 1) 2081 if ((EV_PID_HASHSIZE) > 1)
1406 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2082 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1407} 2083}
1408 2084
1409#endif 2085#endif
1410 2086
1411/*****************************************************************************/ 2087/*****************************************************************************/
1412 2088
2089#if EV_USE_IOCP
2090# include "ev_iocp.c"
2091#endif
1413#if EV_USE_PORT 2092#if EV_USE_PORT
1414# include "ev_port.c" 2093# include "ev_port.c"
1415#endif 2094#endif
1416#if EV_USE_KQUEUE 2095#if EV_USE_KQUEUE
1417# include "ev_kqueue.c" 2096# include "ev_kqueue.c"
… …
1424#endif 2103#endif
1425#if EV_USE_SELECT 2104#if EV_USE_SELECT
1426# include "ev_select.c" 2105# include "ev_select.c"
1427#endif 2106#endif
1428 2107
1429int 2108int ecb_cold
1430ev_version_major (void) 2109ev_version_major (void) EV_THROW
1431{ 2110{
1432 return EV_VERSION_MAJOR; 2111 return EV_VERSION_MAJOR;
1433} 2112}
1434 2113
1435int 2114int ecb_cold
1436ev_version_minor (void) 2115ev_version_minor (void) EV_THROW
1437{ 2116{
1438 return EV_VERSION_MINOR; 2117 return EV_VERSION_MINOR;
1439} 2118}
1440 2119
1441/* return true if we are running with elevated privileges and should ignore env variables */ 2120/* return true if we are running with elevated privileges and should ignore env variables */
1442int inline_size 2121int inline_size ecb_cold
1443enable_secure (void) 2122enable_secure (void)
1444{ 2123{
1445#ifdef _WIN32 2124#ifdef _WIN32
1446 return 0; 2125 return 0;
1447#else 2126#else
1448 return getuid () != geteuid () 2127 return getuid () != geteuid ()
1449 || getgid () != getegid (); 2128 || getgid () != getegid ();
1450#endif 2129#endif
1451} 2130}
1452 2131
1453unsigned int 2132unsigned int ecb_cold
1454ev_supported_backends (void) 2133ev_supported_backends (void) EV_THROW
1455{ 2134{
1456 unsigned int flags = 0; 2135 unsigned int flags = 0;
1457 2136
1458 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2137 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1459 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2138 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1462 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2141 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1463 2142
1464 return flags; 2143 return flags;
1465} 2144}
1466 2145
1467unsigned int 2146unsigned int ecb_cold
1468ev_recommended_backends (void) 2147ev_recommended_backends (void) EV_THROW
1469{ 2148{
1470 unsigned int flags = ev_supported_backends (); 2149 unsigned int flags = ev_supported_backends ();
1471 2150
1472#ifndef __NetBSD__ 2151#ifndef __NetBSD__
1473 /* kqueue is borked on everything but netbsd apparently */ 2152 /* kqueue is borked on everything but netbsd apparently */
… …
1477#ifdef __APPLE__ 2156#ifdef __APPLE__
1478 /* only select works correctly on that "unix-certified" platform */ 2157 /* only select works correctly on that "unix-certified" platform */
1479 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2158 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1480 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2159 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1481#endif 2160#endif
2161#ifdef __FreeBSD__
2162 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2163#endif
1482 2164
1483 return flags; 2165 return flags;
1484} 2166}
1485 2167
2168unsigned int ecb_cold
2169ev_embeddable_backends (void) EV_THROW
2170{
2171 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2172
2173 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2174 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2175 flags &= ~EVBACKEND_EPOLL;
2176
2177 return flags;
2178}
2179
1486unsigned int 2180unsigned int
1487ev_embeddable_backends (void) 2181ev_backend (EV_P) EV_THROW
1488{ 2182{
1489 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2183 return backend;
1490
1491 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1492 /* please fix it and tell me how to detect the fix */
1493 flags &= ~EVBACKEND_EPOLL;
1494
1495 return flags;
1496} 2184}
1497 2185
2186#if EV_FEATURE_API
1498unsigned int 2187unsigned int
1499ev_backend (EV_P) 2188ev_iteration (EV_P) EV_THROW
1500{ 2189{
1501 return backend; 2190 return loop_count;
1502} 2191}
1503 2192
1504#if EV_MINIMAL < 2
1505unsigned int 2193unsigned int
1506ev_loop_count (EV_P) 2194ev_depth (EV_P) EV_THROW
1507{
1508 return loop_count;
1509}
1510
1511unsigned int
1512ev_loop_depth (EV_P)
1513{ 2195{
1514 return loop_depth; 2196 return loop_depth;
1515} 2197}
1516 2198
1517void 2199void
1518ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2200ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1519{ 2201{
1520 io_blocktime = interval; 2202 io_blocktime = interval;
1521} 2203}
1522 2204
1523void 2205void
1524ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1525{ 2207{
1526 timeout_blocktime = interval; 2208 timeout_blocktime = interval;
1527} 2209}
1528 2210
1529void 2211void
1530ev_set_userdata (EV_P_ void *data) 2212ev_set_userdata (EV_P_ void *data) EV_THROW
1531{ 2213{
1532 userdata = data; 2214 userdata = data;
1533} 2215}
1534 2216
1535void * 2217void *
1536ev_userdata (EV_P) 2218ev_userdata (EV_P) EV_THROW
1537{ 2219{
1538 return userdata; 2220 return userdata;
1539} 2221}
1540 2222
2223void
1541void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2224ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1542{ 2225{
1543 invoke_cb = invoke_pending_cb; 2226 invoke_cb = invoke_pending_cb;
1544} 2227}
1545 2228
2229void
1546void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2230ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1547{ 2231{
1548 release_cb = release; 2232 release_cb = release;
1549 acquire_cb = acquire; 2233 acquire_cb = acquire;
1550} 2234}
1551#endif 2235#endif
1552 2236
1553/* initialise a loop structure, must be zero-initialised */ 2237/* initialise a loop structure, must be zero-initialised */
1554static void noinline 2238static void noinline ecb_cold
1555loop_init (EV_P_ unsigned int flags) 2239loop_init (EV_P_ unsigned int flags) EV_THROW
1556{ 2240{
1557 if (!backend) 2241 if (!backend)
1558 { 2242 {
2243 origflags = flags;
2244
1559#if EV_USE_REALTIME 2245#if EV_USE_REALTIME
1560 if (!have_realtime) 2246 if (!have_realtime)
1561 { 2247 {
1562 struct timespec ts; 2248 struct timespec ts;
1563 2249
… …
1585 if (!(flags & EVFLAG_NOENV) 2271 if (!(flags & EVFLAG_NOENV)
1586 && !enable_secure () 2272 && !enable_secure ()
1587 && getenv ("LIBEV_FLAGS")) 2273 && getenv ("LIBEV_FLAGS"))
1588 flags = atoi (getenv ("LIBEV_FLAGS")); 2274 flags = atoi (getenv ("LIBEV_FLAGS"));
1589 2275
1590 ev_rt_now = ev_time (); 2276 ev_rt_now = ev_time ();
1591 mn_now = get_clock (); 2277 mn_now = get_clock ();
1592 now_floor = mn_now; 2278 now_floor = mn_now;
1593 rtmn_diff = ev_rt_now - mn_now; 2279 rtmn_diff = ev_rt_now - mn_now;
1594#if EV_MINIMAL < 2 2280#if EV_FEATURE_API
1595 invoke_cb = ev_invoke_pending; 2281 invoke_cb = ev_invoke_pending;
1596#endif 2282#endif
1597 2283
1598 io_blocktime = 0.; 2284 io_blocktime = 0.;
1599 timeout_blocktime = 0.; 2285 timeout_blocktime = 0.;
1600 backend = 0; 2286 backend = 0;
1601 backend_fd = -1; 2287 backend_fd = -1;
1602 sig_pending = 0; 2288 sig_pending = 0;
1603#if EV_ASYNC_ENABLE 2289#if EV_ASYNC_ENABLE
1604 async_pending = 0; 2290 async_pending = 0;
1605#endif 2291#endif
2292 pipe_write_skipped = 0;
2293 pipe_write_wanted = 0;
1606#if EV_USE_INOTIFY 2294#if EV_USE_INOTIFY
1607 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2295 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1608#endif 2296#endif
1609#if EV_USE_SIGNALFD 2297#if EV_USE_SIGNALFD
1610 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2298 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1611#endif 2299#endif
1612 2300
1613 if (!(flags & 0x0000ffffU)) 2301 if (!(flags & EVBACKEND_MASK))
1614 flags |= ev_recommended_backends (); 2302 flags |= ev_recommended_backends ();
1615 2303
2304#if EV_USE_IOCP
2305 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2306#endif
1616#if EV_USE_PORT 2307#if EV_USE_PORT
1617 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2308 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1618#endif 2309#endif
1619#if EV_USE_KQUEUE 2310#if EV_USE_KQUEUE
1620 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2311 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1629 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1630#endif 2321#endif
1631 2322
1632 ev_prepare_init (&pending_w, pendingcb); 2323 ev_prepare_init (&pending_w, pendingcb);
1633 2324
2325#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1634 ev_init (&pipe_w, pipecb); 2326 ev_init (&pipe_w, pipecb);
1635 ev_set_priority (&pipe_w, EV_MAXPRI); 2327 ev_set_priority (&pipe_w, EV_MAXPRI);
2328#endif
1636 } 2329 }
1637} 2330}
1638 2331
1639/* free up a loop structure */ 2332/* free up a loop structure */
1640static void noinline 2333void ecb_cold
1641loop_destroy (EV_P) 2334ev_loop_destroy (EV_P)
1642{ 2335{
1643 int i; 2336 int i;
2337
2338#if EV_MULTIPLICITY
2339 /* mimic free (0) */
2340 if (!EV_A)
2341 return;
2342#endif
2343
2344#if EV_CLEANUP_ENABLE
2345 /* queue cleanup watchers (and execute them) */
2346 if (expect_false (cleanupcnt))
2347 {
2348 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2349 EV_INVOKE_PENDING;
2350 }
2351#endif
2352
2353#if EV_CHILD_ENABLE
2354 if (ev_is_active (&childev))
2355 {
2356 ev_ref (EV_A); /* child watcher */
2357 ev_signal_stop (EV_A_ &childev);
2358 }
2359#endif
1644 2360
1645 if (ev_is_active (&pipe_w)) 2361 if (ev_is_active (&pipe_w))
1646 { 2362 {
1647 /*ev_ref (EV_A);*/ 2363 /*ev_ref (EV_A);*/
1648 /*ev_io_stop (EV_A_ &pipe_w);*/ 2364 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1670#endif 2386#endif
1671 2387
1672 if (backend_fd >= 0) 2388 if (backend_fd >= 0)
1673 close (backend_fd); 2389 close (backend_fd);
1674 2390
2391#if EV_USE_IOCP
2392 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2393#endif
1675#if EV_USE_PORT 2394#if EV_USE_PORT
1676 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2395 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1677#endif 2396#endif
1678#if EV_USE_KQUEUE 2397#if EV_USE_KQUEUE
1679 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2398 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1706 array_free (periodic, EMPTY); 2425 array_free (periodic, EMPTY);
1707#endif 2426#endif
1708#if EV_FORK_ENABLE 2427#if EV_FORK_ENABLE
1709 array_free (fork, EMPTY); 2428 array_free (fork, EMPTY);
1710#endif 2429#endif
2430#if EV_CLEANUP_ENABLE
2431 array_free (cleanup, EMPTY);
2432#endif
1711 array_free (prepare, EMPTY); 2433 array_free (prepare, EMPTY);
1712 array_free (check, EMPTY); 2434 array_free (check, EMPTY);
1713#if EV_ASYNC_ENABLE 2435#if EV_ASYNC_ENABLE
1714 array_free (async, EMPTY); 2436 array_free (async, EMPTY);
1715#endif 2437#endif
1716 2438
1717 backend = 0; 2439 backend = 0;
2440
2441#if EV_MULTIPLICITY
2442 if (ev_is_default_loop (EV_A))
2443#endif
2444 ev_default_loop_ptr = 0;
2445#if EV_MULTIPLICITY
2446 else
2447 ev_free (EV_A);
2448#endif
1718} 2449}
1719 2450
1720#if EV_USE_INOTIFY 2451#if EV_USE_INOTIFY
1721inline_size void infy_fork (EV_P); 2452inline_size void infy_fork (EV_P);
1722#endif 2453#endif
… …
1737 infy_fork (EV_A); 2468 infy_fork (EV_A);
1738#endif 2469#endif
1739 2470
1740 if (ev_is_active (&pipe_w)) 2471 if (ev_is_active (&pipe_w))
1741 { 2472 {
1742 /* this "locks" the handlers against writing to the pipe */ 2473 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1743 /* while we modify the fd vars */
1744 sig_pending = 1;
1745#if EV_ASYNC_ENABLE
1746 async_pending = 1;
1747#endif
1748 2474
1749 ev_ref (EV_A); 2475 ev_ref (EV_A);
1750 ev_io_stop (EV_A_ &pipe_w); 2476 ev_io_stop (EV_A_ &pipe_w);
1751 2477
1752#if EV_USE_EVENTFD 2478#if EV_USE_EVENTFD
… …
1758 { 2484 {
1759 EV_WIN32_CLOSE_FD (evpipe [0]); 2485 EV_WIN32_CLOSE_FD (evpipe [0]);
1760 EV_WIN32_CLOSE_FD (evpipe [1]); 2486 EV_WIN32_CLOSE_FD (evpipe [1]);
1761 } 2487 }
1762 2488
2489#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1763 evpipe_init (EV_A); 2490 evpipe_init (EV_A);
1764 /* now iterate over everything, in case we missed something */ 2491 /* now iterate over everything, in case we missed something */
1765 pipecb (EV_A_ &pipe_w, EV_READ); 2492 pipecb (EV_A_ &pipe_w, EV_READ);
2493#endif
1766 } 2494 }
1767 2495
1768 postfork = 0; 2496 postfork = 0;
1769} 2497}
1770 2498
1771#if EV_MULTIPLICITY 2499#if EV_MULTIPLICITY
1772 2500
1773struct ev_loop * 2501struct ev_loop * ecb_cold
1774ev_loop_new (unsigned int flags) 2502ev_loop_new (unsigned int flags) EV_THROW
1775{ 2503{
1776 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2504 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1777 2505
1778 memset (EV_A, 0, sizeof (struct ev_loop)); 2506 memset (EV_A, 0, sizeof (struct ev_loop));
1779 loop_init (EV_A_ flags); 2507 loop_init (EV_A_ flags);
1780 2508
1781 if (ev_backend (EV_A)) 2509 if (ev_backend (EV_A))
1782 return EV_A; 2510 return EV_A;
1783 2511
2512 ev_free (EV_A);
1784 return 0; 2513 return 0;
1785} 2514}
1786 2515
1787void
1788ev_loop_destroy (EV_P)
1789{
1790 loop_destroy (EV_A);
1791 ev_free (loop);
1792}
1793
1794void
1795ev_loop_fork (EV_P)
1796{
1797 postfork = 1; /* must be in line with ev_default_fork */
1798}
1799#endif /* multiplicity */ 2516#endif /* multiplicity */
1800 2517
1801#if EV_VERIFY 2518#if EV_VERIFY
1802static void noinline 2519static void noinline ecb_cold
1803verify_watcher (EV_P_ W w) 2520verify_watcher (EV_P_ W w)
1804{ 2521{
1805 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2522 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1806 2523
1807 if (w->pending) 2524 if (w->pending)
1808 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2525 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1809} 2526}
1810 2527
1811static void noinline 2528static void noinline ecb_cold
1812verify_heap (EV_P_ ANHE *heap, int N) 2529verify_heap (EV_P_ ANHE *heap, int N)
1813{ 2530{
1814 int i; 2531 int i;
1815 2532
1816 for (i = HEAP0; i < N + HEAP0; ++i) 2533 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1821 2538
1822 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2539 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1823 } 2540 }
1824} 2541}
1825 2542
1826static void noinline 2543static void noinline ecb_cold
1827array_verify (EV_P_ W *ws, int cnt) 2544array_verify (EV_P_ W *ws, int cnt)
1828{ 2545{
1829 while (cnt--) 2546 while (cnt--)
1830 { 2547 {
1831 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2548 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1832 verify_watcher (EV_A_ ws [cnt]); 2549 verify_watcher (EV_A_ ws [cnt]);
1833 } 2550 }
1834} 2551}
1835#endif 2552#endif
1836 2553
1837#if EV_MINIMAL < 2 2554#if EV_FEATURE_API
1838void 2555void ecb_cold
1839ev_loop_verify (EV_P) 2556ev_verify (EV_P) EV_THROW
1840{ 2557{
1841#if EV_VERIFY 2558#if EV_VERIFY
1842 int i; 2559 int i;
1843 WL w; 2560 WL w;
1844 2561
… …
1878#if EV_FORK_ENABLE 2595#if EV_FORK_ENABLE
1879 assert (forkmax >= forkcnt); 2596 assert (forkmax >= forkcnt);
1880 array_verify (EV_A_ (W *)forks, forkcnt); 2597 array_verify (EV_A_ (W *)forks, forkcnt);
1881#endif 2598#endif
1882 2599
2600#if EV_CLEANUP_ENABLE
2601 assert (cleanupmax >= cleanupcnt);
2602 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2603#endif
2604
1883#if EV_ASYNC_ENABLE 2605#if EV_ASYNC_ENABLE
1884 assert (asyncmax >= asynccnt); 2606 assert (asyncmax >= asynccnt);
1885 array_verify (EV_A_ (W *)asyncs, asynccnt); 2607 array_verify (EV_A_ (W *)asyncs, asynccnt);
1886#endif 2608#endif
1887 2609
2610#if EV_PREPARE_ENABLE
1888 assert (preparemax >= preparecnt); 2611 assert (preparemax >= preparecnt);
1889 array_verify (EV_A_ (W *)prepares, preparecnt); 2612 array_verify (EV_A_ (W *)prepares, preparecnt);
2613#endif
1890 2614
2615#if EV_CHECK_ENABLE
1891 assert (checkmax >= checkcnt); 2616 assert (checkmax >= checkcnt);
1892 array_verify (EV_A_ (W *)checks, checkcnt); 2617 array_verify (EV_A_ (W *)checks, checkcnt);
2618#endif
1893 2619
1894# if 0 2620# if 0
2621#if EV_CHILD_ENABLE
1895 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2622 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1896 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2623 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2624#endif
1897# endif 2625# endif
1898#endif 2626#endif
1899} 2627}
1900#endif 2628#endif
1901 2629
1902#if EV_MULTIPLICITY 2630#if EV_MULTIPLICITY
1903struct ev_loop * 2631struct ev_loop * ecb_cold
1904ev_default_loop_init (unsigned int flags)
1905#else 2632#else
1906int 2633int
2634#endif
1907ev_default_loop (unsigned int flags) 2635ev_default_loop (unsigned int flags) EV_THROW
1908#endif
1909{ 2636{
1910 if (!ev_default_loop_ptr) 2637 if (!ev_default_loop_ptr)
1911 { 2638 {
1912#if EV_MULTIPLICITY 2639#if EV_MULTIPLICITY
1913 EV_P = ev_default_loop_ptr = &default_loop_struct; 2640 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1917 2644
1918 loop_init (EV_A_ flags); 2645 loop_init (EV_A_ flags);
1919 2646
1920 if (ev_backend (EV_A)) 2647 if (ev_backend (EV_A))
1921 { 2648 {
1922#ifndef _WIN32 2649#if EV_CHILD_ENABLE
1923 ev_signal_init (&childev, childcb, SIGCHLD); 2650 ev_signal_init (&childev, childcb, SIGCHLD);
1924 ev_set_priority (&childev, EV_MAXPRI); 2651 ev_set_priority (&childev, EV_MAXPRI);
1925 ev_signal_start (EV_A_ &childev); 2652 ev_signal_start (EV_A_ &childev);
1926 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2653 ev_unref (EV_A); /* child watcher should not keep loop alive */
1927#endif 2654#endif
… …
1932 2659
1933 return ev_default_loop_ptr; 2660 return ev_default_loop_ptr;
1934} 2661}
1935 2662
1936void 2663void
1937ev_default_destroy (void) 2664ev_loop_fork (EV_P) EV_THROW
1938{ 2665{
1939#if EV_MULTIPLICITY
1940 EV_P = ev_default_loop_ptr;
1941#endif
1942
1943 ev_default_loop_ptr = 0;
1944
1945#ifndef _WIN32
1946 ev_ref (EV_A); /* child watcher */
1947 ev_signal_stop (EV_A_ &childev);
1948#endif
1949
1950 loop_destroy (EV_A);
1951}
1952
1953void
1954ev_default_fork (void)
1955{
1956#if EV_MULTIPLICITY
1957 EV_P = ev_default_loop_ptr;
1958#endif
1959
1960 postfork = 1; /* must be in line with ev_loop_fork */ 2666 postfork = 1; /* must be in line with ev_default_fork */
1961} 2667}
1962 2668
1963/*****************************************************************************/ 2669/*****************************************************************************/
1964 2670
1965void 2671void
… …
1967{ 2673{
1968 EV_CB_INVOKE ((W)w, revents); 2674 EV_CB_INVOKE ((W)w, revents);
1969} 2675}
1970 2676
1971unsigned int 2677unsigned int
1972ev_pending_count (EV_P) 2678ev_pending_count (EV_P) EV_THROW
1973{ 2679{
1974 int pri; 2680 int pri;
1975 unsigned int count = 0; 2681 unsigned int count = 0;
1976 2682
1977 for (pri = NUMPRI; pri--; ) 2683 for (pri = NUMPRI; pri--; )
… …
1981} 2687}
1982 2688
1983void noinline 2689void noinline
1984ev_invoke_pending (EV_P) 2690ev_invoke_pending (EV_P)
1985{ 2691{
1986 int pri; 2692 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1987
1988 for (pri = NUMPRI; pri--; )
1989 while (pendingcnt [pri]) 2693 while (pendingcnt [pendingpri])
1990 { 2694 {
1991 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2695 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1992
1993 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1994 /* ^ this is no longer true, as pending_w could be here */
1995 2696
1996 p->w->pending = 0; 2697 p->w->pending = 0;
1997 EV_CB_INVOKE (p->w, p->events); 2698 EV_CB_INVOKE (p->w, p->events);
1998 EV_FREQUENT_CHECK; 2699 EV_FREQUENT_CHECK;
1999 } 2700 }
… …
2056 EV_FREQUENT_CHECK; 2757 EV_FREQUENT_CHECK;
2057 feed_reverse (EV_A_ (W)w); 2758 feed_reverse (EV_A_ (W)w);
2058 } 2759 }
2059 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2760 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2060 2761
2061 feed_reverse_done (EV_A_ EV_TIMEOUT); 2762 feed_reverse_done (EV_A_ EV_TIMER);
2062 } 2763 }
2063} 2764}
2064 2765
2065#if EV_PERIODIC_ENABLE 2766#if EV_PERIODIC_ENABLE
2767
2768static void noinline
2769periodic_recalc (EV_P_ ev_periodic *w)
2770{
2771 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2772 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2773
2774 /* the above almost always errs on the low side */
2775 while (at <= ev_rt_now)
2776 {
2777 ev_tstamp nat = at + w->interval;
2778
2779 /* when resolution fails us, we use ev_rt_now */
2780 if (expect_false (nat == at))
2781 {
2782 at = ev_rt_now;
2783 break;
2784 }
2785
2786 at = nat;
2787 }
2788
2789 ev_at (w) = at;
2790}
2791
2066/* make periodics pending */ 2792/* make periodics pending */
2067inline_size void 2793inline_size void
2068periodics_reify (EV_P) 2794periodics_reify (EV_P)
2069{ 2795{
2070 EV_FREQUENT_CHECK; 2796 EV_FREQUENT_CHECK;
… …
2089 ANHE_at_cache (periodics [HEAP0]); 2815 ANHE_at_cache (periodics [HEAP0]);
2090 downheap (periodics, periodiccnt, HEAP0); 2816 downheap (periodics, periodiccnt, HEAP0);
2091 } 2817 }
2092 else if (w->interval) 2818 else if (w->interval)
2093 { 2819 {
2094 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2820 periodic_recalc (EV_A_ w);
2095 /* if next trigger time is not sufficiently in the future, put it there */
2096 /* this might happen because of floating point inexactness */
2097 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2098 {
2099 ev_at (w) += w->interval;
2100
2101 /* if interval is unreasonably low we might still have a time in the past */
2102 /* so correct this. this will make the periodic very inexact, but the user */
2103 /* has effectively asked to get triggered more often than possible */
2104 if (ev_at (w) < ev_rt_now)
2105 ev_at (w) = ev_rt_now;
2106 }
2107
2108 ANHE_at_cache (periodics [HEAP0]); 2821 ANHE_at_cache (periodics [HEAP0]);
2109 downheap (periodics, periodiccnt, HEAP0); 2822 downheap (periodics, periodiccnt, HEAP0);
2110 } 2823 }
2111 else 2824 else
2112 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2825 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2119 feed_reverse_done (EV_A_ EV_PERIODIC); 2832 feed_reverse_done (EV_A_ EV_PERIODIC);
2120 } 2833 }
2121} 2834}
2122 2835
2123/* simply recalculate all periodics */ 2836/* simply recalculate all periodics */
2124/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2837/* TODO: maybe ensure that at least one event happens when jumping forward? */
2125static void noinline 2838static void noinline ecb_cold
2126periodics_reschedule (EV_P) 2839periodics_reschedule (EV_P)
2127{ 2840{
2128 int i; 2841 int i;
2129 2842
2130 /* adjust periodics after time jump */ 2843 /* adjust periodics after time jump */
… …
2133 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2846 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2134 2847
2135 if (w->reschedule_cb) 2848 if (w->reschedule_cb)
2136 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2849 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2137 else if (w->interval) 2850 else if (w->interval)
2138 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2851 periodic_recalc (EV_A_ w);
2139 2852
2140 ANHE_at_cache (periodics [i]); 2853 ANHE_at_cache (periodics [i]);
2141 } 2854 }
2142 2855
2143 reheap (periodics, periodiccnt); 2856 reheap (periodics, periodiccnt);
2144} 2857}
2145#endif 2858#endif
2146 2859
2147/* adjust all timers by a given offset */ 2860/* adjust all timers by a given offset */
2148static void noinline 2861static void noinline ecb_cold
2149timers_reschedule (EV_P_ ev_tstamp adjust) 2862timers_reschedule (EV_P_ ev_tstamp adjust)
2150{ 2863{
2151 int i; 2864 int i;
2152 2865
2153 for (i = 0; i < timercnt; ++i) 2866 for (i = 0; i < timercnt; ++i)
… …
2157 ANHE_at_cache (*he); 2870 ANHE_at_cache (*he);
2158 } 2871 }
2159} 2872}
2160 2873
2161/* fetch new monotonic and realtime times from the kernel */ 2874/* fetch new monotonic and realtime times from the kernel */
2162/* also detetc if there was a timejump, and act accordingly */ 2875/* also detect if there was a timejump, and act accordingly */
2163inline_speed void 2876inline_speed void
2164time_update (EV_P_ ev_tstamp max_block) 2877time_update (EV_P_ ev_tstamp max_block)
2165{ 2878{
2166#if EV_USE_MONOTONIC 2879#if EV_USE_MONOTONIC
2167 if (expect_true (have_monotonic)) 2880 if (expect_true (have_monotonic))
… …
2190 * doesn't hurt either as we only do this on time-jumps or 2903 * doesn't hurt either as we only do this on time-jumps or
2191 * in the unlikely event of having been preempted here. 2904 * in the unlikely event of having been preempted here.
2192 */ 2905 */
2193 for (i = 4; --i; ) 2906 for (i = 4; --i; )
2194 { 2907 {
2908 ev_tstamp diff;
2195 rtmn_diff = ev_rt_now - mn_now; 2909 rtmn_diff = ev_rt_now - mn_now;
2196 2910
2911 diff = odiff - rtmn_diff;
2912
2197 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2913 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2198 return; /* all is well */ 2914 return; /* all is well */
2199 2915
2200 ev_rt_now = ev_time (); 2916 ev_rt_now = ev_time ();
2201 mn_now = get_clock (); 2917 mn_now = get_clock ();
2202 now_floor = mn_now; 2918 now_floor = mn_now;
… …
2224 2940
2225 mn_now = ev_rt_now; 2941 mn_now = ev_rt_now;
2226 } 2942 }
2227} 2943}
2228 2944
2229void 2945int
2230ev_loop (EV_P_ int flags) 2946ev_run (EV_P_ int flags)
2231{ 2947{
2232#if EV_MINIMAL < 2 2948#if EV_FEATURE_API
2233 ++loop_depth; 2949 ++loop_depth;
2234#endif 2950#endif
2235 2951
2236 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2952 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2237 2953
2238 loop_done = EVUNLOOP_CANCEL; 2954 loop_done = EVBREAK_CANCEL;
2239 2955
2240 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2956 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2241 2957
2242 do 2958 do
2243 { 2959 {
2244#if EV_VERIFY >= 2 2960#if EV_VERIFY >= 2
2245 ev_loop_verify (EV_A); 2961 ev_verify (EV_A);
2246#endif 2962#endif
2247 2963
2248#ifndef _WIN32 2964#ifndef _WIN32
2249 if (expect_false (curpid)) /* penalise the forking check even more */ 2965 if (expect_false (curpid)) /* penalise the forking check even more */
2250 if (expect_false (getpid () != curpid)) 2966 if (expect_false (getpid () != curpid))
… …
2262 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2978 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2263 EV_INVOKE_PENDING; 2979 EV_INVOKE_PENDING;
2264 } 2980 }
2265#endif 2981#endif
2266 2982
2983#if EV_PREPARE_ENABLE
2267 /* queue prepare watchers (and execute them) */ 2984 /* queue prepare watchers (and execute them) */
2268 if (expect_false (preparecnt)) 2985 if (expect_false (preparecnt))
2269 { 2986 {
2270 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2987 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2271 EV_INVOKE_PENDING; 2988 EV_INVOKE_PENDING;
2272 } 2989 }
2990#endif
2273 2991
2274 if (expect_false (loop_done)) 2992 if (expect_false (loop_done))
2275 break; 2993 break;
2276 2994
2277 /* we might have forked, so reify kernel state if necessary */ 2995 /* we might have forked, so reify kernel state if necessary */
… …
2284 /* calculate blocking time */ 3002 /* calculate blocking time */
2285 { 3003 {
2286 ev_tstamp waittime = 0.; 3004 ev_tstamp waittime = 0.;
2287 ev_tstamp sleeptime = 0.; 3005 ev_tstamp sleeptime = 0.;
2288 3006
3007 /* remember old timestamp for io_blocktime calculation */
3008 ev_tstamp prev_mn_now = mn_now;
3009
3010 /* update time to cancel out callback processing overhead */
3011 time_update (EV_A_ 1e100);
3012
3013 /* from now on, we want a pipe-wake-up */
3014 pipe_write_wanted = 1;
3015
3016 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3017
2289 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3018 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2290 { 3019 {
2291 /* remember old timestamp for io_blocktime calculation */
2292 ev_tstamp prev_mn_now = mn_now;
2293
2294 /* update time to cancel out callback processing overhead */
2295 time_update (EV_A_ 1e100);
2296
2297 waittime = MAX_BLOCKTIME; 3020 waittime = MAX_BLOCKTIME;
2298 3021
2299 if (timercnt) 3022 if (timercnt)
2300 { 3023 {
2301 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3024 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2302 if (waittime > to) waittime = to; 3025 if (waittime > to) waittime = to;
2303 } 3026 }
2304 3027
2305#if EV_PERIODIC_ENABLE 3028#if EV_PERIODIC_ENABLE
2306 if (periodiccnt) 3029 if (periodiccnt)
2307 { 3030 {
2308 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3031 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2309 if (waittime > to) waittime = to; 3032 if (waittime > to) waittime = to;
2310 } 3033 }
2311#endif 3034#endif
2312 3035
2313 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3036 /* don't let timeouts decrease the waittime below timeout_blocktime */
2314 if (expect_false (waittime < timeout_blocktime)) 3037 if (expect_false (waittime < timeout_blocktime))
2315 waittime = timeout_blocktime; 3038 waittime = timeout_blocktime;
3039
3040 /* at this point, we NEED to wait, so we have to ensure */
3041 /* to pass a minimum nonzero value to the backend */
3042 if (expect_false (waittime < backend_mintime))
3043 waittime = backend_mintime;
2316 3044
2317 /* extra check because io_blocktime is commonly 0 */ 3045 /* extra check because io_blocktime is commonly 0 */
2318 if (expect_false (io_blocktime)) 3046 if (expect_false (io_blocktime))
2319 { 3047 {
2320 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3048 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2321 3049
2322 if (sleeptime > waittime - backend_fudge) 3050 if (sleeptime > waittime - backend_mintime)
2323 sleeptime = waittime - backend_fudge; 3051 sleeptime = waittime - backend_mintime;
2324 3052
2325 if (expect_true (sleeptime > 0.)) 3053 if (expect_true (sleeptime > 0.))
2326 { 3054 {
2327 ev_sleep (sleeptime); 3055 ev_sleep (sleeptime);
2328 waittime -= sleeptime; 3056 waittime -= sleeptime;
2329 } 3057 }
2330 } 3058 }
2331 } 3059 }
2332 3060
2333#if EV_MINIMAL < 2 3061#if EV_FEATURE_API
2334 ++loop_count; 3062 ++loop_count;
2335#endif 3063#endif
2336 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3064 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2337 backend_poll (EV_A_ waittime); 3065 backend_poll (EV_A_ waittime);
2338 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3066 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3067
3068 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3069
3070 if (pipe_write_skipped)
3071 {
3072 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3073 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3074 }
3075
2339 3076
2340 /* update ev_rt_now, do magic */ 3077 /* update ev_rt_now, do magic */
2341 time_update (EV_A_ waittime + sleeptime); 3078 time_update (EV_A_ waittime + sleeptime);
2342 } 3079 }
2343 3080
… …
2350#if EV_IDLE_ENABLE 3087#if EV_IDLE_ENABLE
2351 /* queue idle watchers unless other events are pending */ 3088 /* queue idle watchers unless other events are pending */
2352 idle_reify (EV_A); 3089 idle_reify (EV_A);
2353#endif 3090#endif
2354 3091
3092#if EV_CHECK_ENABLE
2355 /* queue check watchers, to be executed first */ 3093 /* queue check watchers, to be executed first */
2356 if (expect_false (checkcnt)) 3094 if (expect_false (checkcnt))
2357 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3095 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3096#endif
2358 3097
2359 EV_INVOKE_PENDING; 3098 EV_INVOKE_PENDING;
2360 } 3099 }
2361 while (expect_true ( 3100 while (expect_true (
2362 activecnt 3101 activecnt
2363 && !loop_done 3102 && !loop_done
2364 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3103 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2365 )); 3104 ));
2366 3105
2367 if (loop_done == EVUNLOOP_ONE) 3106 if (loop_done == EVBREAK_ONE)
2368 loop_done = EVUNLOOP_CANCEL; 3107 loop_done = EVBREAK_CANCEL;
2369 3108
2370#if EV_MINIMAL < 2 3109#if EV_FEATURE_API
2371 --loop_depth; 3110 --loop_depth;
2372#endif 3111#endif
3112
3113 return activecnt;
2373} 3114}
2374 3115
2375void 3116void
2376ev_unloop (EV_P_ int how) 3117ev_break (EV_P_ int how) EV_THROW
2377{ 3118{
2378 loop_done = how; 3119 loop_done = how;
2379} 3120}
2380 3121
2381void 3122void
2382ev_ref (EV_P) 3123ev_ref (EV_P) EV_THROW
2383{ 3124{
2384 ++activecnt; 3125 ++activecnt;
2385} 3126}
2386 3127
2387void 3128void
2388ev_unref (EV_P) 3129ev_unref (EV_P) EV_THROW
2389{ 3130{
2390 --activecnt; 3131 --activecnt;
2391} 3132}
2392 3133
2393void 3134void
2394ev_now_update (EV_P) 3135ev_now_update (EV_P) EV_THROW
2395{ 3136{
2396 time_update (EV_A_ 1e100); 3137 time_update (EV_A_ 1e100);
2397} 3138}
2398 3139
2399void 3140void
2400ev_suspend (EV_P) 3141ev_suspend (EV_P) EV_THROW
2401{ 3142{
2402 ev_now_update (EV_A); 3143 ev_now_update (EV_A);
2403} 3144}
2404 3145
2405void 3146void
2406ev_resume (EV_P) 3147ev_resume (EV_P) EV_THROW
2407{ 3148{
2408 ev_tstamp mn_prev = mn_now; 3149 ev_tstamp mn_prev = mn_now;
2409 3150
2410 ev_now_update (EV_A); 3151 ev_now_update (EV_A);
2411 timers_reschedule (EV_A_ mn_now - mn_prev); 3152 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2450 w->pending = 0; 3191 w->pending = 0;
2451 } 3192 }
2452} 3193}
2453 3194
2454int 3195int
2455ev_clear_pending (EV_P_ void *w) 3196ev_clear_pending (EV_P_ void *w) EV_THROW
2456{ 3197{
2457 W w_ = (W)w; 3198 W w_ = (W)w;
2458 int pending = w_->pending; 3199 int pending = w_->pending;
2459 3200
2460 if (expect_true (pending)) 3201 if (expect_true (pending))
… …
2493} 3234}
2494 3235
2495/*****************************************************************************/ 3236/*****************************************************************************/
2496 3237
2497void noinline 3238void noinline
2498ev_io_start (EV_P_ ev_io *w) 3239ev_io_start (EV_P_ ev_io *w) EV_THROW
2499{ 3240{
2500 int fd = w->fd; 3241 int fd = w->fd;
2501 3242
2502 if (expect_false (ev_is_active (w))) 3243 if (expect_false (ev_is_active (w)))
2503 return; 3244 return;
2504 3245
2505 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3246 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2506 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3247 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2507 3248
2508 EV_FREQUENT_CHECK; 3249 EV_FREQUENT_CHECK;
2509 3250
2510 ev_start (EV_A_ (W)w, 1); 3251 ev_start (EV_A_ (W)w, 1);
2511 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3252 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2516 3257
2517 EV_FREQUENT_CHECK; 3258 EV_FREQUENT_CHECK;
2518} 3259}
2519 3260
2520void noinline 3261void noinline
2521ev_io_stop (EV_P_ ev_io *w) 3262ev_io_stop (EV_P_ ev_io *w) EV_THROW
2522{ 3263{
2523 clear_pending (EV_A_ (W)w); 3264 clear_pending (EV_A_ (W)w);
2524 if (expect_false (!ev_is_active (w))) 3265 if (expect_false (!ev_is_active (w)))
2525 return; 3266 return;
2526 3267
… …
2529 EV_FREQUENT_CHECK; 3270 EV_FREQUENT_CHECK;
2530 3271
2531 wlist_del (&anfds[w->fd].head, (WL)w); 3272 wlist_del (&anfds[w->fd].head, (WL)w);
2532 ev_stop (EV_A_ (W)w); 3273 ev_stop (EV_A_ (W)w);
2533 3274
2534 fd_change (EV_A_ w->fd, 1); 3275 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2535 3276
2536 EV_FREQUENT_CHECK; 3277 EV_FREQUENT_CHECK;
2537} 3278}
2538 3279
2539void noinline 3280void noinline
2540ev_timer_start (EV_P_ ev_timer *w) 3281ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2541{ 3282{
2542 if (expect_false (ev_is_active (w))) 3283 if (expect_false (ev_is_active (w)))
2543 return; 3284 return;
2544 3285
2545 ev_at (w) += mn_now; 3286 ev_at (w) += mn_now;
… …
2559 3300
2560 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3301 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2561} 3302}
2562 3303
2563void noinline 3304void noinline
2564ev_timer_stop (EV_P_ ev_timer *w) 3305ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2565{ 3306{
2566 clear_pending (EV_A_ (W)w); 3307 clear_pending (EV_A_ (W)w);
2567 if (expect_false (!ev_is_active (w))) 3308 if (expect_false (!ev_is_active (w)))
2568 return; 3309 return;
2569 3310
… …
2581 timers [active] = timers [timercnt + HEAP0]; 3322 timers [active] = timers [timercnt + HEAP0];
2582 adjustheap (timers, timercnt, active); 3323 adjustheap (timers, timercnt, active);
2583 } 3324 }
2584 } 3325 }
2585 3326
2586 EV_FREQUENT_CHECK;
2587
2588 ev_at (w) -= mn_now; 3327 ev_at (w) -= mn_now;
2589 3328
2590 ev_stop (EV_A_ (W)w); 3329 ev_stop (EV_A_ (W)w);
3330
3331 EV_FREQUENT_CHECK;
2591} 3332}
2592 3333
2593void noinline 3334void noinline
2594ev_timer_again (EV_P_ ev_timer *w) 3335ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2595{ 3336{
2596 EV_FREQUENT_CHECK; 3337 EV_FREQUENT_CHECK;
3338
3339 clear_pending (EV_A_ (W)w);
2597 3340
2598 if (ev_is_active (w)) 3341 if (ev_is_active (w))
2599 { 3342 {
2600 if (w->repeat) 3343 if (w->repeat)
2601 { 3344 {
… …
2614 3357
2615 EV_FREQUENT_CHECK; 3358 EV_FREQUENT_CHECK;
2616} 3359}
2617 3360
2618ev_tstamp 3361ev_tstamp
2619ev_timer_remaining (EV_P_ ev_timer *w) 3362ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2620{ 3363{
2621 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3364 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2622} 3365}
2623 3366
2624#if EV_PERIODIC_ENABLE 3367#if EV_PERIODIC_ENABLE
2625void noinline 3368void noinline
2626ev_periodic_start (EV_P_ ev_periodic *w) 3369ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2627{ 3370{
2628 if (expect_false (ev_is_active (w))) 3371 if (expect_false (ev_is_active (w)))
2629 return; 3372 return;
2630 3373
2631 if (w->reschedule_cb) 3374 if (w->reschedule_cb)
2632 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3375 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2633 else if (w->interval) 3376 else if (w->interval)
2634 { 3377 {
2635 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3378 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2636 /* this formula differs from the one in periodic_reify because we do not always round up */ 3379 periodic_recalc (EV_A_ w);
2637 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2638 } 3380 }
2639 else 3381 else
2640 ev_at (w) = w->offset; 3382 ev_at (w) = w->offset;
2641 3383
2642 EV_FREQUENT_CHECK; 3384 EV_FREQUENT_CHECK;
… …
2652 3394
2653 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3395 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2654} 3396}
2655 3397
2656void noinline 3398void noinline
2657ev_periodic_stop (EV_P_ ev_periodic *w) 3399ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2658{ 3400{
2659 clear_pending (EV_A_ (W)w); 3401 clear_pending (EV_A_ (W)w);
2660 if (expect_false (!ev_is_active (w))) 3402 if (expect_false (!ev_is_active (w)))
2661 return; 3403 return;
2662 3404
… …
2674 periodics [active] = periodics [periodiccnt + HEAP0]; 3416 periodics [active] = periodics [periodiccnt + HEAP0];
2675 adjustheap (periodics, periodiccnt, active); 3417 adjustheap (periodics, periodiccnt, active);
2676 } 3418 }
2677 } 3419 }
2678 3420
2679 EV_FREQUENT_CHECK;
2680
2681 ev_stop (EV_A_ (W)w); 3421 ev_stop (EV_A_ (W)w);
3422
3423 EV_FREQUENT_CHECK;
2682} 3424}
2683 3425
2684void noinline 3426void noinline
2685ev_periodic_again (EV_P_ ev_periodic *w) 3427ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2686{ 3428{
2687 /* TODO: use adjustheap and recalculation */ 3429 /* TODO: use adjustheap and recalculation */
2688 ev_periodic_stop (EV_A_ w); 3430 ev_periodic_stop (EV_A_ w);
2689 ev_periodic_start (EV_A_ w); 3431 ev_periodic_start (EV_A_ w);
2690} 3432}
… …
2692 3434
2693#ifndef SA_RESTART 3435#ifndef SA_RESTART
2694# define SA_RESTART 0 3436# define SA_RESTART 0
2695#endif 3437#endif
2696 3438
3439#if EV_SIGNAL_ENABLE
3440
2697void noinline 3441void noinline
2698ev_signal_start (EV_P_ ev_signal *w) 3442ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2699{ 3443{
2700 if (expect_false (ev_is_active (w))) 3444 if (expect_false (ev_is_active (w)))
2701 return; 3445 return;
2702 3446
2703 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3447 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2761 sa.sa_handler = ev_sighandler; 3505 sa.sa_handler = ev_sighandler;
2762 sigfillset (&sa.sa_mask); 3506 sigfillset (&sa.sa_mask);
2763 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3507 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2764 sigaction (w->signum, &sa, 0); 3508 sigaction (w->signum, &sa, 0);
2765 3509
3510 if (origflags & EVFLAG_NOSIGMASK)
3511 {
2766 sigemptyset (&sa.sa_mask); 3512 sigemptyset (&sa.sa_mask);
2767 sigaddset (&sa.sa_mask, w->signum); 3513 sigaddset (&sa.sa_mask, w->signum);
2768 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3514 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3515 }
2769#endif 3516#endif
2770 } 3517 }
2771 3518
2772 EV_FREQUENT_CHECK; 3519 EV_FREQUENT_CHECK;
2773} 3520}
2774 3521
2775void noinline 3522void noinline
2776ev_signal_stop (EV_P_ ev_signal *w) 3523ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2777{ 3524{
2778 clear_pending (EV_A_ (W)w); 3525 clear_pending (EV_A_ (W)w);
2779 if (expect_false (!ev_is_active (w))) 3526 if (expect_false (!ev_is_active (w)))
2780 return; 3527 return;
2781 3528
… …
2807 } 3554 }
2808 3555
2809 EV_FREQUENT_CHECK; 3556 EV_FREQUENT_CHECK;
2810} 3557}
2811 3558
3559#endif
3560
3561#if EV_CHILD_ENABLE
3562
2812void 3563void
2813ev_child_start (EV_P_ ev_child *w) 3564ev_child_start (EV_P_ ev_child *w) EV_THROW
2814{ 3565{
2815#if EV_MULTIPLICITY 3566#if EV_MULTIPLICITY
2816 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3567 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2817#endif 3568#endif
2818 if (expect_false (ev_is_active (w))) 3569 if (expect_false (ev_is_active (w)))
2819 return; 3570 return;
2820 3571
2821 EV_FREQUENT_CHECK; 3572 EV_FREQUENT_CHECK;
2822 3573
2823 ev_start (EV_A_ (W)w, 1); 3574 ev_start (EV_A_ (W)w, 1);
2824 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3575 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2825 3576
2826 EV_FREQUENT_CHECK; 3577 EV_FREQUENT_CHECK;
2827} 3578}
2828 3579
2829void 3580void
2830ev_child_stop (EV_P_ ev_child *w) 3581ev_child_stop (EV_P_ ev_child *w) EV_THROW
2831{ 3582{
2832 clear_pending (EV_A_ (W)w); 3583 clear_pending (EV_A_ (W)w);
2833 if (expect_false (!ev_is_active (w))) 3584 if (expect_false (!ev_is_active (w)))
2834 return; 3585 return;
2835 3586
2836 EV_FREQUENT_CHECK; 3587 EV_FREQUENT_CHECK;
2837 3588
2838 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3589 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2839 ev_stop (EV_A_ (W)w); 3590 ev_stop (EV_A_ (W)w);
2840 3591
2841 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
2842} 3593}
3594
3595#endif
2843 3596
2844#if EV_STAT_ENABLE 3597#if EV_STAT_ENABLE
2845 3598
2846# ifdef _WIN32 3599# ifdef _WIN32
2847# undef lstat 3600# undef lstat
… …
2853#define MIN_STAT_INTERVAL 0.1074891 3606#define MIN_STAT_INTERVAL 0.1074891
2854 3607
2855static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3608static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2856 3609
2857#if EV_USE_INOTIFY 3610#if EV_USE_INOTIFY
2858# define EV_INOTIFY_BUFSIZE 8192 3611
3612/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3613# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2859 3614
2860static void noinline 3615static void noinline
2861infy_add (EV_P_ ev_stat *w) 3616infy_add (EV_P_ ev_stat *w)
2862{ 3617{
2863 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); 3618 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);
… …
2906 if (!pend || pend == path) 3661 if (!pend || pend == path)
2907 break; 3662 break;
2908 3663
2909 *pend = 0; 3664 *pend = 0;
2910 w->wd = inotify_add_watch (fs_fd, path, mask); 3665 w->wd = inotify_add_watch (fs_fd, path, mask);
2911 } 3666 }
2912 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3667 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2913 } 3668 }
2914 } 3669 }
2915 3670
2916 if (w->wd >= 0) 3671 if (w->wd >= 0)
2917 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3672 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2918 3673
2919 /* now re-arm timer, if required */ 3674 /* now re-arm timer, if required */
2920 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3675 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2921 ev_timer_again (EV_A_ &w->timer); 3676 ev_timer_again (EV_A_ &w->timer);
2922 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3677 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2930 3685
2931 if (wd < 0) 3686 if (wd < 0)
2932 return; 3687 return;
2933 3688
2934 w->wd = -2; 3689 w->wd = -2;
2935 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3690 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2936 wlist_del (&fs_hash [slot].head, (WL)w); 3691 wlist_del (&fs_hash [slot].head, (WL)w);
2937 3692
2938 /* remove this watcher, if others are watching it, they will rearm */ 3693 /* remove this watcher, if others are watching it, they will rearm */
2939 inotify_rm_watch (fs_fd, wd); 3694 inotify_rm_watch (fs_fd, wd);
2940} 3695}
… …
2942static void noinline 3697static void noinline
2943infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3698infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2944{ 3699{
2945 if (slot < 0) 3700 if (slot < 0)
2946 /* overflow, need to check for all hash slots */ 3701 /* overflow, need to check for all hash slots */
2947 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3702 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2948 infy_wd (EV_A_ slot, wd, ev); 3703 infy_wd (EV_A_ slot, wd, ev);
2949 else 3704 else
2950 { 3705 {
2951 WL w_; 3706 WL w_;
2952 3707
2953 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3708 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2954 { 3709 {
2955 ev_stat *w = (ev_stat *)w_; 3710 ev_stat *w = (ev_stat *)w_;
2956 w_ = w_->next; /* lets us remove this watcher and all before it */ 3711 w_ = w_->next; /* lets us remove this watcher and all before it */
2957 3712
2958 if (w->wd == wd || wd == -1) 3713 if (w->wd == wd || wd == -1)
2959 { 3714 {
2960 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3715 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2961 { 3716 {
2962 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3717 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2963 w->wd = -1; 3718 w->wd = -1;
2964 infy_add (EV_A_ w); /* re-add, no matter what */ 3719 infy_add (EV_A_ w); /* re-add, no matter what */
2965 } 3720 }
2966 3721
2967 stat_timer_cb (EV_A_ &w->timer, 0); 3722 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2972 3727
2973static void 3728static void
2974infy_cb (EV_P_ ev_io *w, int revents) 3729infy_cb (EV_P_ ev_io *w, int revents)
2975{ 3730{
2976 char buf [EV_INOTIFY_BUFSIZE]; 3731 char buf [EV_INOTIFY_BUFSIZE];
2977 struct inotify_event *ev = (struct inotify_event *)buf;
2978 int ofs; 3732 int ofs;
2979 int len = read (fs_fd, buf, sizeof (buf)); 3733 int len = read (fs_fd, buf, sizeof (buf));
2980 3734
2981 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3735 for (ofs = 0; ofs < len; )
3736 {
3737 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2982 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3738 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3739 ofs += sizeof (struct inotify_event) + ev->len;
3740 }
2983} 3741}
2984 3742
2985inline_size void 3743inline_size void ecb_cold
2986check_2625 (EV_P) 3744ev_check_2625 (EV_P)
2987{ 3745{
2988 /* kernels < 2.6.25 are borked 3746 /* kernels < 2.6.25 are borked
2989 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3747 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2990 */ 3748 */
2991 struct utsname buf; 3749 if (ev_linux_version () < 0x020619)
2992 int major, minor, micro;
2993
2994 if (uname (&buf))
2995 return;
2996
2997 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2998 return;
2999
3000 if (major < 2
3001 || (major == 2 && minor < 6)
3002 || (major == 2 && minor == 6 && micro < 25))
3003 return; 3750 return;
3004 3751
3005 fs_2625 = 1; 3752 fs_2625 = 1;
3006} 3753}
3007 3754
3008inline_size int 3755inline_size int
3009infy_newfd (void) 3756infy_newfd (void)
3010{ 3757{
3011#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3758#if defined IN_CLOEXEC && defined IN_NONBLOCK
3012 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3759 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3013 if (fd >= 0) 3760 if (fd >= 0)
3014 return fd; 3761 return fd;
3015#endif 3762#endif
3016 return inotify_init (); 3763 return inotify_init ();
… …
3022 if (fs_fd != -2) 3769 if (fs_fd != -2)
3023 return; 3770 return;
3024 3771
3025 fs_fd = -1; 3772 fs_fd = -1;
3026 3773
3027 check_2625 (EV_A); 3774 ev_check_2625 (EV_A);
3028 3775
3029 fs_fd = infy_newfd (); 3776 fs_fd = infy_newfd ();
3030 3777
3031 if (fs_fd >= 0) 3778 if (fs_fd >= 0)
3032 { 3779 {
… …
3057 ev_io_set (&fs_w, fs_fd, EV_READ); 3804 ev_io_set (&fs_w, fs_fd, EV_READ);
3058 ev_io_start (EV_A_ &fs_w); 3805 ev_io_start (EV_A_ &fs_w);
3059 ev_unref (EV_A); 3806 ev_unref (EV_A);
3060 } 3807 }
3061 3808
3062 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3809 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3063 { 3810 {
3064 WL w_ = fs_hash [slot].head; 3811 WL w_ = fs_hash [slot].head;
3065 fs_hash [slot].head = 0; 3812 fs_hash [slot].head = 0;
3066 3813
3067 while (w_) 3814 while (w_)
… …
3091#else 3838#else
3092# define EV_LSTAT(p,b) lstat (p, b) 3839# define EV_LSTAT(p,b) lstat (p, b)
3093#endif 3840#endif
3094 3841
3095void 3842void
3096ev_stat_stat (EV_P_ ev_stat *w) 3843ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3097{ 3844{
3098 if (lstat (w->path, &w->attr) < 0) 3845 if (lstat (w->path, &w->attr) < 0)
3099 w->attr.st_nlink = 0; 3846 w->attr.st_nlink = 0;
3100 else if (!w->attr.st_nlink) 3847 else if (!w->attr.st_nlink)
3101 w->attr.st_nlink = 1; 3848 w->attr.st_nlink = 1;
… …
3140 ev_feed_event (EV_A_ w, EV_STAT); 3887 ev_feed_event (EV_A_ w, EV_STAT);
3141 } 3888 }
3142} 3889}
3143 3890
3144void 3891void
3145ev_stat_start (EV_P_ ev_stat *w) 3892ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3146{ 3893{
3147 if (expect_false (ev_is_active (w))) 3894 if (expect_false (ev_is_active (w)))
3148 return; 3895 return;
3149 3896
3150 ev_stat_stat (EV_A_ w); 3897 ev_stat_stat (EV_A_ w);
… …
3171 3918
3172 EV_FREQUENT_CHECK; 3919 EV_FREQUENT_CHECK;
3173} 3920}
3174 3921
3175void 3922void
3176ev_stat_stop (EV_P_ ev_stat *w) 3923ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3177{ 3924{
3178 clear_pending (EV_A_ (W)w); 3925 clear_pending (EV_A_ (W)w);
3179 if (expect_false (!ev_is_active (w))) 3926 if (expect_false (!ev_is_active (w)))
3180 return; 3927 return;
3181 3928
… …
3197} 3944}
3198#endif 3945#endif
3199 3946
3200#if EV_IDLE_ENABLE 3947#if EV_IDLE_ENABLE
3201void 3948void
3202ev_idle_start (EV_P_ ev_idle *w) 3949ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3203{ 3950{
3204 if (expect_false (ev_is_active (w))) 3951 if (expect_false (ev_is_active (w)))
3205 return; 3952 return;
3206 3953
3207 pri_adjust (EV_A_ (W)w); 3954 pri_adjust (EV_A_ (W)w);
… …
3220 3967
3221 EV_FREQUENT_CHECK; 3968 EV_FREQUENT_CHECK;
3222} 3969}
3223 3970
3224void 3971void
3225ev_idle_stop (EV_P_ ev_idle *w) 3972ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3226{ 3973{
3227 clear_pending (EV_A_ (W)w); 3974 clear_pending (EV_A_ (W)w);
3228 if (expect_false (!ev_is_active (w))) 3975 if (expect_false (!ev_is_active (w)))
3229 return; 3976 return;
3230 3977
… …
3242 3989
3243 EV_FREQUENT_CHECK; 3990 EV_FREQUENT_CHECK;
3244} 3991}
3245#endif 3992#endif
3246 3993
3994#if EV_PREPARE_ENABLE
3247void 3995void
3248ev_prepare_start (EV_P_ ev_prepare *w) 3996ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3249{ 3997{
3250 if (expect_false (ev_is_active (w))) 3998 if (expect_false (ev_is_active (w)))
3251 return; 3999 return;
3252 4000
3253 EV_FREQUENT_CHECK; 4001 EV_FREQUENT_CHECK;
… …
3258 4006
3259 EV_FREQUENT_CHECK; 4007 EV_FREQUENT_CHECK;
3260} 4008}
3261 4009
3262void 4010void
3263ev_prepare_stop (EV_P_ ev_prepare *w) 4011ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3264{ 4012{
3265 clear_pending (EV_A_ (W)w); 4013 clear_pending (EV_A_ (W)w);
3266 if (expect_false (!ev_is_active (w))) 4014 if (expect_false (!ev_is_active (w)))
3267 return; 4015 return;
3268 4016
… …
3277 4025
3278 ev_stop (EV_A_ (W)w); 4026 ev_stop (EV_A_ (W)w);
3279 4027
3280 EV_FREQUENT_CHECK; 4028 EV_FREQUENT_CHECK;
3281} 4029}
4030#endif
3282 4031
4032#if EV_CHECK_ENABLE
3283void 4033void
3284ev_check_start (EV_P_ ev_check *w) 4034ev_check_start (EV_P_ ev_check *w) EV_THROW
3285{ 4035{
3286 if (expect_false (ev_is_active (w))) 4036 if (expect_false (ev_is_active (w)))
3287 return; 4037 return;
3288 4038
3289 EV_FREQUENT_CHECK; 4039 EV_FREQUENT_CHECK;
… …
3294 4044
3295 EV_FREQUENT_CHECK; 4045 EV_FREQUENT_CHECK;
3296} 4046}
3297 4047
3298void 4048void
3299ev_check_stop (EV_P_ ev_check *w) 4049ev_check_stop (EV_P_ ev_check *w) EV_THROW
3300{ 4050{
3301 clear_pending (EV_A_ (W)w); 4051 clear_pending (EV_A_ (W)w);
3302 if (expect_false (!ev_is_active (w))) 4052 if (expect_false (!ev_is_active (w)))
3303 return; 4053 return;
3304 4054
… …
3313 4063
3314 ev_stop (EV_A_ (W)w); 4064 ev_stop (EV_A_ (W)w);
3315 4065
3316 EV_FREQUENT_CHECK; 4066 EV_FREQUENT_CHECK;
3317} 4067}
4068#endif
3318 4069
3319#if EV_EMBED_ENABLE 4070#if EV_EMBED_ENABLE
3320void noinline 4071void noinline
3321ev_embed_sweep (EV_P_ ev_embed *w) 4072ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3322{ 4073{
3323 ev_loop (w->other, EVLOOP_NONBLOCK); 4074 ev_run (w->other, EVRUN_NOWAIT);
3324} 4075}
3325 4076
3326static void 4077static void
3327embed_io_cb (EV_P_ ev_io *io, int revents) 4078embed_io_cb (EV_P_ ev_io *io, int revents)
3328{ 4079{
3329 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4080 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3330 4081
3331 if (ev_cb (w)) 4082 if (ev_cb (w))
3332 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4083 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3333 else 4084 else
3334 ev_loop (w->other, EVLOOP_NONBLOCK); 4085 ev_run (w->other, EVRUN_NOWAIT);
3335} 4086}
3336 4087
3337static void 4088static void
3338embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4089embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3339{ 4090{
… …
3343 EV_P = w->other; 4094 EV_P = w->other;
3344 4095
3345 while (fdchangecnt) 4096 while (fdchangecnt)
3346 { 4097 {
3347 fd_reify (EV_A); 4098 fd_reify (EV_A);
3348 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4099 ev_run (EV_A_ EVRUN_NOWAIT);
3349 } 4100 }
3350 } 4101 }
3351} 4102}
3352 4103
3353static void 4104static void
… …
3359 4110
3360 { 4111 {
3361 EV_P = w->other; 4112 EV_P = w->other;
3362 4113
3363 ev_loop_fork (EV_A); 4114 ev_loop_fork (EV_A);
3364 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4115 ev_run (EV_A_ EVRUN_NOWAIT);
3365 } 4116 }
3366 4117
3367 ev_embed_start (EV_A_ w); 4118 ev_embed_start (EV_A_ w);
3368} 4119}
3369 4120
… …
3374 ev_idle_stop (EV_A_ idle); 4125 ev_idle_stop (EV_A_ idle);
3375} 4126}
3376#endif 4127#endif
3377 4128
3378void 4129void
3379ev_embed_start (EV_P_ ev_embed *w) 4130ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3380{ 4131{
3381 if (expect_false (ev_is_active (w))) 4132 if (expect_false (ev_is_active (w)))
3382 return; 4133 return;
3383 4134
3384 { 4135 {
… …
3405 4156
3406 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3407} 4158}
3408 4159
3409void 4160void
3410ev_embed_stop (EV_P_ ev_embed *w) 4161ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3411{ 4162{
3412 clear_pending (EV_A_ (W)w); 4163 clear_pending (EV_A_ (W)w);
3413 if (expect_false (!ev_is_active (w))) 4164 if (expect_false (!ev_is_active (w)))
3414 return; 4165 return;
3415 4166
… …
3417 4168
3418 ev_io_stop (EV_A_ &w->io); 4169 ev_io_stop (EV_A_ &w->io);
3419 ev_prepare_stop (EV_A_ &w->prepare); 4170 ev_prepare_stop (EV_A_ &w->prepare);
3420 ev_fork_stop (EV_A_ &w->fork); 4171 ev_fork_stop (EV_A_ &w->fork);
3421 4172
4173 ev_stop (EV_A_ (W)w);
4174
3422 EV_FREQUENT_CHECK; 4175 EV_FREQUENT_CHECK;
3423} 4176}
3424#endif 4177#endif
3425 4178
3426#if EV_FORK_ENABLE 4179#if EV_FORK_ENABLE
3427void 4180void
3428ev_fork_start (EV_P_ ev_fork *w) 4181ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3429{ 4182{
3430 if (expect_false (ev_is_active (w))) 4183 if (expect_false (ev_is_active (w)))
3431 return; 4184 return;
3432 4185
3433 EV_FREQUENT_CHECK; 4186 EV_FREQUENT_CHECK;
… …
3438 4191
3439 EV_FREQUENT_CHECK; 4192 EV_FREQUENT_CHECK;
3440} 4193}
3441 4194
3442void 4195void
3443ev_fork_stop (EV_P_ ev_fork *w) 4196ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3444{ 4197{
3445 clear_pending (EV_A_ (W)w); 4198 clear_pending (EV_A_ (W)w);
3446 if (expect_false (!ev_is_active (w))) 4199 if (expect_false (!ev_is_active (w)))
3447 return; 4200 return;
3448 4201
… …
3459 4212
3460 EV_FREQUENT_CHECK; 4213 EV_FREQUENT_CHECK;
3461} 4214}
3462#endif 4215#endif
3463 4216
4217#if EV_CLEANUP_ENABLE
4218void
4219ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4220{
4221 if (expect_false (ev_is_active (w)))
4222 return;
4223
4224 EV_FREQUENT_CHECK;
4225
4226 ev_start (EV_A_ (W)w, ++cleanupcnt);
4227 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4228 cleanups [cleanupcnt - 1] = w;
4229
4230 /* cleanup watchers should never keep a refcount on the loop */
4231 ev_unref (EV_A);
4232 EV_FREQUENT_CHECK;
4233}
4234
4235void
4236ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4237{
4238 clear_pending (EV_A_ (W)w);
4239 if (expect_false (!ev_is_active (w)))
4240 return;
4241
4242 EV_FREQUENT_CHECK;
4243 ev_ref (EV_A);
4244
4245 {
4246 int active = ev_active (w);
4247
4248 cleanups [active - 1] = cleanups [--cleanupcnt];
4249 ev_active (cleanups [active - 1]) = active;
4250 }
4251
4252 ev_stop (EV_A_ (W)w);
4253
4254 EV_FREQUENT_CHECK;
4255}
4256#endif
4257
3464#if EV_ASYNC_ENABLE 4258#if EV_ASYNC_ENABLE
3465void 4259void
3466ev_async_start (EV_P_ ev_async *w) 4260ev_async_start (EV_P_ ev_async *w) EV_THROW
3467{ 4261{
3468 if (expect_false (ev_is_active (w))) 4262 if (expect_false (ev_is_active (w)))
3469 return; 4263 return;
4264
4265 w->sent = 0;
3470 4266
3471 evpipe_init (EV_A); 4267 evpipe_init (EV_A);
3472 4268
3473 EV_FREQUENT_CHECK; 4269 EV_FREQUENT_CHECK;
3474 4270
… …
3478 4274
3479 EV_FREQUENT_CHECK; 4275 EV_FREQUENT_CHECK;
3480} 4276}
3481 4277
3482void 4278void
3483ev_async_stop (EV_P_ ev_async *w) 4279ev_async_stop (EV_P_ ev_async *w) EV_THROW
3484{ 4280{
3485 clear_pending (EV_A_ (W)w); 4281 clear_pending (EV_A_ (W)w);
3486 if (expect_false (!ev_is_active (w))) 4282 if (expect_false (!ev_is_active (w)))
3487 return; 4283 return;
3488 4284
… …
3499 4295
3500 EV_FREQUENT_CHECK; 4296 EV_FREQUENT_CHECK;
3501} 4297}
3502 4298
3503void 4299void
3504ev_async_send (EV_P_ ev_async *w) 4300ev_async_send (EV_P_ ev_async *w) EV_THROW
3505{ 4301{
3506 w->sent = 1; 4302 w->sent = 1;
3507 evpipe_write (EV_A_ &async_pending); 4303 evpipe_write (EV_A_ &async_pending);
3508} 4304}
3509#endif 4305#endif
… …
3546 4342
3547 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4343 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3548} 4344}
3549 4345
3550void 4346void
3551ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4347ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3552{ 4348{
3553 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4349 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3554 4350
3555 if (expect_false (!once)) 4351 if (expect_false (!once))
3556 { 4352 {
3557 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4353 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3558 return; 4354 return;
3559 } 4355 }
3560 4356
3561 once->cb = cb; 4357 once->cb = cb;
3562 once->arg = arg; 4358 once->arg = arg;
… …
3577} 4373}
3578 4374
3579/*****************************************************************************/ 4375/*****************************************************************************/
3580 4376
3581#if EV_WALK_ENABLE 4377#if EV_WALK_ENABLE
3582void 4378void ecb_cold
3583ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4379ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3584{ 4380{
3585 int i, j; 4381 int i, j;
3586 ev_watcher_list *wl, *wn; 4382 ev_watcher_list *wl, *wn;
3587 4383
3588 if (types & (EV_IO | EV_EMBED)) 4384 if (types & (EV_IO | EV_EMBED))
… …
3631 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4427 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3632#endif 4428#endif
3633 4429
3634#if EV_IDLE_ENABLE 4430#if EV_IDLE_ENABLE
3635 if (types & EV_IDLE) 4431 if (types & EV_IDLE)
3636 for (j = NUMPRI; i--; ) 4432 for (j = NUMPRI; j--; )
3637 for (i = idlecnt [j]; i--; ) 4433 for (i = idlecnt [j]; i--; )
3638 cb (EV_A_ EV_IDLE, idles [j][i]); 4434 cb (EV_A_ EV_IDLE, idles [j][i]);
3639#endif 4435#endif
3640 4436
3641#if EV_FORK_ENABLE 4437#if EV_FORK_ENABLE
… …
3649 if (types & EV_ASYNC) 4445 if (types & EV_ASYNC)
3650 for (i = asynccnt; i--; ) 4446 for (i = asynccnt; i--; )
3651 cb (EV_A_ EV_ASYNC, asyncs [i]); 4447 cb (EV_A_ EV_ASYNC, asyncs [i]);
3652#endif 4448#endif
3653 4449
4450#if EV_PREPARE_ENABLE
3654 if (types & EV_PREPARE) 4451 if (types & EV_PREPARE)
3655 for (i = preparecnt; i--; ) 4452 for (i = preparecnt; i--; )
3656#if EV_EMBED_ENABLE 4453# if EV_EMBED_ENABLE
3657 if (ev_cb (prepares [i]) != embed_prepare_cb) 4454 if (ev_cb (prepares [i]) != embed_prepare_cb)
3658#endif 4455# endif
3659 cb (EV_A_ EV_PREPARE, prepares [i]); 4456 cb (EV_A_ EV_PREPARE, prepares [i]);
4457#endif
3660 4458
4459#if EV_CHECK_ENABLE
3661 if (types & EV_CHECK) 4460 if (types & EV_CHECK)
3662 for (i = checkcnt; i--; ) 4461 for (i = checkcnt; i--; )
3663 cb (EV_A_ EV_CHECK, checks [i]); 4462 cb (EV_A_ EV_CHECK, checks [i]);
4463#endif
3664 4464
4465#if EV_SIGNAL_ENABLE
3665 if (types & EV_SIGNAL) 4466 if (types & EV_SIGNAL)
3666 for (i = 0; i < EV_NSIG - 1; ++i) 4467 for (i = 0; i < EV_NSIG - 1; ++i)
3667 for (wl = signals [i].head; wl; ) 4468 for (wl = signals [i].head; wl; )
3668 { 4469 {
3669 wn = wl->next; 4470 wn = wl->next;
3670 cb (EV_A_ EV_SIGNAL, wl); 4471 cb (EV_A_ EV_SIGNAL, wl);
3671 wl = wn; 4472 wl = wn;
3672 } 4473 }
4474#endif
3673 4475
4476#if EV_CHILD_ENABLE
3674 if (types & EV_CHILD) 4477 if (types & EV_CHILD)
3675 for (i = EV_PID_HASHSIZE; i--; ) 4478 for (i = (EV_PID_HASHSIZE); i--; )
3676 for (wl = childs [i]; wl; ) 4479 for (wl = childs [i]; wl; )
3677 { 4480 {
3678 wn = wl->next; 4481 wn = wl->next;
3679 cb (EV_A_ EV_CHILD, wl); 4482 cb (EV_A_ EV_CHILD, wl);
3680 wl = wn; 4483 wl = wn;
3681 } 4484 }
4485#endif
3682/* EV_STAT 0x00001000 /* stat data changed */ 4486/* EV_STAT 0x00001000 /* stat data changed */
3683/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4487/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3684} 4488}
3685#endif 4489#endif
3686 4490
3687#if EV_MULTIPLICITY 4491#if EV_MULTIPLICITY
3688 #include "ev_wrap.h" 4492 #include "ev_wrap.h"
3689#endif 4493#endif
3690 4494
3691#ifdef __cplusplus
3692}
3693#endif
3694

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