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Comparing libev/ev.c (file contents):
Revision 1.330 by root, Tue Mar 9 08:46:17 2010 UTC vs.
Revision 1.435 by root, Sat May 26 08:52:09 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
171 181
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# include "ev.h" 185# include "ev.h"
186#endif
187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
176#endif 197#endif
177 198
178#ifndef _WIN32 199#ifndef _WIN32
179# include <sys/time.h> 200# include <sys/time.h>
180# include <sys/wait.h> 201# include <sys/wait.h>
181# include <unistd.h> 202# include <unistd.h>
182#else 203#else
183# include <io.h> 204# include <io.h>
184# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
185# include <windows.h> 207# include <windows.h>
186# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
188# endif 210# endif
211# undef EV_AVOID_STDIO
189#endif 212#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
190 221
191/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
192 223
193/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
194#if defined (EV_NSIG) 225#if defined EV_NSIG
195/* use what's provided */ 226/* use what's provided */
196#elif defined (NSIG) 227#elif defined NSIG
197# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
198#elif defined(_NSIG) 229#elif defined _NSIG
199# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
200#elif defined (SIGMAX) 231#elif defined SIGMAX
201# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
202#elif defined (SIG_MAX) 233#elif defined SIG_MAX
203# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
204#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
205# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
206#elif defined (MAXSIG) 237#elif defined MAXSIG
207# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
208#elif defined (MAX_SIG) 239#elif defined MAX_SIG
209# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
210#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
211# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
212#elif defined (_sys_nsig) 243#elif defined _sys_nsig
213# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
214#else 245#else
215# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
216/* to make it compile regardless, just remove the above line */ 247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
217# define EV_NSIG 65 249# define EV_NSIG 65
250#endif
251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
218#endif 254#endif
219 255
220#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
221# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
222# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
223# else 259# else
224# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
225# endif 261# endif
226#endif 262#endif
227 263
228#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
229# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
230# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
231# else 267# else
232# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
233# endif 269# endif
234#endif 270#endif
235 271
… …
237# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
238#endif 274#endif
239 275
240#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
241# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
242# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
243# else 279# else
244# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
245# endif 281# endif
246#endif 282#endif
247 283
248#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
249# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
250#endif 286#endif
251 287
252#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
253# ifdef _WIN32 289# ifdef _WIN32
254# define EV_USE_POLL 0 290# define EV_USE_POLL 0
255# else 291# else
256# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
257# endif 293# endif
258#endif 294#endif
259 295
260#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
261# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
262# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
263# else 299# else
264# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
265# endif 301# endif
266#endif 302#endif
267 303
… …
273# define EV_USE_PORT 0 309# define EV_USE_PORT 0
274#endif 310#endif
275 311
276#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
277# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
278# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
279# else 315# else
280# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
281# endif 317# endif
282#endif 318#endif
283 319
284#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
285# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
286# define EV_PID_HASHSIZE 1
287# else
288# define EV_PID_HASHSIZE 16
289# endif
290#endif 322#endif
291 323
292#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
293# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
294# define EV_INOTIFY_HASHSIZE 1
295# else
296# define EV_INOTIFY_HASHSIZE 16
297# endif
298#endif 326#endif
299 327
300#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
301# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
302# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
303# else 331# else
304# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
305# endif 333# endif
306#endif 334#endif
307 335
308#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
309# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
310# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
311# else 339# else
312# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
313# endif 341# endif
314#endif 342#endif
315 343
… …
318# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
319# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
320#endif 348#endif
321 349
322#ifndef EV_VERIFY 350#ifndef EV_VERIFY
323# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
324#endif 352#endif
325 353
326#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
327# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
328#endif 356#endif
329 357
330#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
331# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
332#endif 360#endif
333 361
334/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
335/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
336#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
337# include <syscall.h> 365# include <sys/syscall.h>
338# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
339# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
340# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
341# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
342# else 370# else
… …
367# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
368# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
369#endif 397#endif
370 398
371#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
372# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
373# include <sys/select.h> 402# include <sys/select.h>
374# endif 403# endif
375#endif 404#endif
376 405
377#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
378# include <sys/utsname.h>
379# include <sys/statfs.h> 407# include <sys/statfs.h>
380# include <sys/inotify.h> 408# include <sys/inotify.h>
381/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
382# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
383# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
384# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
385# endif 413# endif
386#endif
387
388#if EV_SELECT_IS_WINSOCKET
389# include <winsock.h>
390#endif 414#endif
391 415
392#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
393/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
394# include <stdint.h> 418# include <stdint.h>
… …
400# define EFD_CLOEXEC O_CLOEXEC 424# define EFD_CLOEXEC O_CLOEXEC
401# else 425# else
402# define EFD_CLOEXEC 02000000 426# define EFD_CLOEXEC 02000000
403# endif 427# endif
404# endif 428# endif
405# ifdef __cplusplus
406extern "C" {
407# endif
408int (eventfd) (unsigned int initval, int flags); 429EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
409# ifdef __cplusplus
410}
411# endif
412#endif 430#endif
413 431
414#if EV_USE_SIGNALFD 432#if EV_USE_SIGNALFD
415/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
416# include <stdint.h> 434# include <stdint.h>
… …
422# define SFD_CLOEXEC O_CLOEXEC 440# define SFD_CLOEXEC O_CLOEXEC
423# else 441# else
424# define SFD_CLOEXEC 02000000 442# define SFD_CLOEXEC 02000000
425# endif 443# endif
426# endif 444# endif
427# ifdef __cplusplus
428extern "C" {
429# endif
430int signalfd (int fd, const sigset_t *mask, int flags); 445EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
431 446
432struct signalfd_siginfo 447struct signalfd_siginfo
433{ 448{
434 uint32_t ssi_signo; 449 uint32_t ssi_signo;
435 char pad[128 - sizeof (uint32_t)]; 450 char pad[128 - sizeof (uint32_t)];
436}; 451};
437# ifdef __cplusplus
438}
439# endif 452#endif
440#endif
441
442 453
443/**/ 454/**/
444 455
445#if EV_VERIFY >= 3 456#if EV_VERIFY >= 3
446# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 457# define EV_FREQUENT_CHECK ev_verify (EV_A)
447#else 458#else
448# define EV_FREQUENT_CHECK do { } while (0) 459# define EV_FREQUENT_CHECK do { } while (0)
449#endif 460#endif
450 461
451/* 462/*
452 * This is used to avoid floating point rounding problems. 463 * This is used to work around floating point rounding problems.
453 * It is added to ev_rt_now when scheduling periodics
454 * to ensure progress, time-wise, even when rounding
455 * errors are against us.
456 * This value is good at least till the year 4000. 464 * This value is good at least till the year 4000.
457 * Better solutions welcome.
458 */ 465 */
459#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
460 468
461#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
462#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
463 471
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
474
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */
477/*
478 * libecb - http://software.schmorp.de/pkg/libecb
479 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved.
483 *
484 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met:
486 *
487 * 1. Redistributions of source code must retain the above copyright notice,
488 * this list of conditions and the following disclaimer.
489 *
490 * 2. Redistributions in binary form must reproduce the above copyright
491 * notice, this list of conditions and the following disclaimer in the
492 * documentation and/or other materials provided with the distribution.
493 *
494 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
495 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
496 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
497 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
498 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE.
504 */
505
506#ifndef ECB_H
507#define ECB_H
508
509#ifdef _WIN32
510 typedef signed char int8_t;
511 typedef unsigned char uint8_t;
512 typedef signed short int16_t;
513 typedef unsigned short uint16_t;
514 typedef signed int int32_t;
515 typedef unsigned int uint32_t;
464#if __GNUC__ >= 4 516 #if __GNUC__
465# define expect(expr,value) __builtin_expect ((expr),(value)) 517 typedef signed long long int64_t;
466# define noinline __attribute__ ((noinline)) 518 typedef unsigned long long uint64_t;
519 #else /* _MSC_VER || __BORLANDC__ */
520 typedef signed __int64 int64_t;
521 typedef unsigned __int64 uint64_t;
522 #endif
467#else 523#else
468# define expect(expr,value) (expr) 524 #include <inttypes.h>
469# define noinline
470# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
471# define inline
472# endif 525#endif
526
527/* many compilers define _GNUC_ to some versions but then only implement
528 * what their idiot authors think are the "more important" extensions,
529 * causing enormous grief in return for some better fake benchmark numbers.
530 * or so.
531 * we try to detect these and simply assume they are not gcc - if they have
532 * an issue with that they should have done it right in the first place.
533 */
534#ifndef ECB_GCC_VERSION
535 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
536 #define ECB_GCC_VERSION(major,minor) 0
537 #else
538 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
473#endif 539 #endif
540#endif
474 541
542/*****************************************************************************/
543
544/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
545/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
546
547#if ECB_NO_THREADS
548# define ECB_NO_SMP 1
549#endif
550
551#if ECB_NO_THREADS || ECB_NO_SMP
552 #define ECB_MEMORY_FENCE do { } while (0)
553#endif
554
555#ifndef ECB_MEMORY_FENCE
556 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
557 #if __i386 || __i386__
558 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
559 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
560 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
561 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
565 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
567 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
568 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
570 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
571 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
573 #elif __sparc || __sparc__
574 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
575 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
576 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
577 #elif defined __s390__ || defined __s390x__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
579 #elif defined __mips__
580 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
581 #elif defined __alpha__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
583 #endif
584 #endif
585#endif
586
587#ifndef ECB_MEMORY_FENCE
588 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
589 #define ECB_MEMORY_FENCE __sync_synchronize ()
590 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
591 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
592 #elif _MSC_VER >= 1400 /* VC++ 2005 */
593 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
594 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
595 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
596 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
597 #elif defined _WIN32
598 #include <WinNT.h>
599 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
600 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
601 #include <mbarrier.h>
602 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
603 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
604 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
605 #elif __xlC__
606 #define ECB_MEMORY_FENCE __sync ()
607 #endif
608#endif
609
610#ifndef ECB_MEMORY_FENCE
611 #if !ECB_AVOID_PTHREADS
612 /*
613 * if you get undefined symbol references to pthread_mutex_lock,
614 * or failure to find pthread.h, then you should implement
615 * the ECB_MEMORY_FENCE operations for your cpu/compiler
616 * OR provide pthread.h and link against the posix thread library
617 * of your system.
618 */
619 #include <pthread.h>
620 #define ECB_NEEDS_PTHREADS 1
621 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
622
623 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
624 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
625 #endif
626#endif
627
628#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
629 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
630#endif
631
632#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
633 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
634#endif
635
636/*****************************************************************************/
637
638#define ECB_C99 (__STDC_VERSION__ >= 199901L)
639
640#if __cplusplus
641 #define ecb_inline static inline
642#elif ECB_GCC_VERSION(2,5)
643 #define ecb_inline static __inline__
644#elif ECB_C99
645 #define ecb_inline static inline
646#else
647 #define ecb_inline static
648#endif
649
650#if ECB_GCC_VERSION(3,3)
651 #define ecb_restrict __restrict__
652#elif ECB_C99
653 #define ecb_restrict restrict
654#else
655 #define ecb_restrict
656#endif
657
658typedef int ecb_bool;
659
660#define ECB_CONCAT_(a, b) a ## b
661#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
662#define ECB_STRINGIFY_(a) # a
663#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
664
665#define ecb_function_ ecb_inline
666
667#if ECB_GCC_VERSION(3,1)
668 #define ecb_attribute(attrlist) __attribute__(attrlist)
669 #define ecb_is_constant(expr) __builtin_constant_p (expr)
670 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
671 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
672#else
673 #define ecb_attribute(attrlist)
674 #define ecb_is_constant(expr) 0
675 #define ecb_expect(expr,value) (expr)
676 #define ecb_prefetch(addr,rw,locality)
677#endif
678
679/* no emulation for ecb_decltype */
680#if ECB_GCC_VERSION(4,5)
681 #define ecb_decltype(x) __decltype(x)
682#elif ECB_GCC_VERSION(3,0)
683 #define ecb_decltype(x) __typeof(x)
684#endif
685
686#define ecb_noinline ecb_attribute ((__noinline__))
687#define ecb_noreturn ecb_attribute ((__noreturn__))
688#define ecb_unused ecb_attribute ((__unused__))
689#define ecb_const ecb_attribute ((__const__))
690#define ecb_pure ecb_attribute ((__pure__))
691
692#if ECB_GCC_VERSION(4,3)
693 #define ecb_artificial ecb_attribute ((__artificial__))
694 #define ecb_hot ecb_attribute ((__hot__))
695 #define ecb_cold ecb_attribute ((__cold__))
696#else
697 #define ecb_artificial
698 #define ecb_hot
699 #define ecb_cold
700#endif
701
702/* put around conditional expressions if you are very sure that the */
703/* expression is mostly true or mostly false. note that these return */
704/* booleans, not the expression. */
475#define expect_false(expr) expect ((expr) != 0, 0) 705#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
476#define expect_true(expr) expect ((expr) != 0, 1) 706#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
707/* for compatibility to the rest of the world */
708#define ecb_likely(expr) ecb_expect_true (expr)
709#define ecb_unlikely(expr) ecb_expect_false (expr)
710
711/* count trailing zero bits and count # of one bits */
712#if ECB_GCC_VERSION(3,4)
713 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
714 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
715 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
716 #define ecb_ctz32(x) __builtin_ctz (x)
717 #define ecb_ctz64(x) __builtin_ctzll (x)
718 #define ecb_popcount32(x) __builtin_popcount (x)
719 /* no popcountll */
720#else
721 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
722 ecb_function_ int
723 ecb_ctz32 (uint32_t x)
724 {
725 int r = 0;
726
727 x &= ~x + 1; /* this isolates the lowest bit */
728
729#if ECB_branchless_on_i386
730 r += !!(x & 0xaaaaaaaa) << 0;
731 r += !!(x & 0xcccccccc) << 1;
732 r += !!(x & 0xf0f0f0f0) << 2;
733 r += !!(x & 0xff00ff00) << 3;
734 r += !!(x & 0xffff0000) << 4;
735#else
736 if (x & 0xaaaaaaaa) r += 1;
737 if (x & 0xcccccccc) r += 2;
738 if (x & 0xf0f0f0f0) r += 4;
739 if (x & 0xff00ff00) r += 8;
740 if (x & 0xffff0000) r += 16;
741#endif
742
743 return r;
744 }
745
746 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
747 ecb_function_ int
748 ecb_ctz64 (uint64_t x)
749 {
750 int shift = x & 0xffffffffU ? 0 : 32;
751 return ecb_ctz32 (x >> shift) + shift;
752 }
753
754 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
755 ecb_function_ int
756 ecb_popcount32 (uint32_t x)
757 {
758 x -= (x >> 1) & 0x55555555;
759 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
760 x = ((x >> 4) + x) & 0x0f0f0f0f;
761 x *= 0x01010101;
762
763 return x >> 24;
764 }
765
766 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
767 ecb_function_ int ecb_ld32 (uint32_t x)
768 {
769 int r = 0;
770
771 if (x >> 16) { x >>= 16; r += 16; }
772 if (x >> 8) { x >>= 8; r += 8; }
773 if (x >> 4) { x >>= 4; r += 4; }
774 if (x >> 2) { x >>= 2; r += 2; }
775 if (x >> 1) { r += 1; }
776
777 return r;
778 }
779
780 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
781 ecb_function_ int ecb_ld64 (uint64_t x)
782 {
783 int r = 0;
784
785 if (x >> 32) { x >>= 32; r += 32; }
786
787 return r + ecb_ld32 (x);
788 }
789#endif
790
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
793{
794 return ( (x * 0x0802U & 0x22110U)
795 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
796}
797
798ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
800{
801 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
802 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
803 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
804 x = ( x >> 8 ) | ( x << 8);
805
806 return x;
807}
808
809ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
811{
812 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
813 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
814 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
815 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
816 x = ( x >> 16 ) | ( x << 16);
817
818 return x;
819}
820
821/* popcount64 is only available on 64 bit cpus as gcc builtin */
822/* so for this version we are lazy */
823ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
824ecb_function_ int
825ecb_popcount64 (uint64_t x)
826{
827 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
828}
829
830ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
831ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
832ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
833ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
834ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
835ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
836ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
837ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
838
839ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
840ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
841ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
842ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
843ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
844ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
845ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
846ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
847
848#if ECB_GCC_VERSION(4,3)
849 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
850 #define ecb_bswap32(x) __builtin_bswap32 (x)
851 #define ecb_bswap64(x) __builtin_bswap64 (x)
852#else
853 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
854 ecb_function_ uint16_t
855 ecb_bswap16 (uint16_t x)
856 {
857 return ecb_rotl16 (x, 8);
858 }
859
860 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
861 ecb_function_ uint32_t
862 ecb_bswap32 (uint32_t x)
863 {
864 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
865 }
866
867 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
868 ecb_function_ uint64_t
869 ecb_bswap64 (uint64_t x)
870 {
871 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
872 }
873#endif
874
875#if ECB_GCC_VERSION(4,5)
876 #define ecb_unreachable() __builtin_unreachable ()
877#else
878 /* this seems to work fine, but gcc always emits a warning for it :/ */
879 ecb_inline void ecb_unreachable (void) ecb_noreturn;
880 ecb_inline void ecb_unreachable (void) { }
881#endif
882
883/* try to tell the compiler that some condition is definitely true */
884#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
885
886ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
887ecb_inline unsigned char
888ecb_byteorder_helper (void)
889{
890 const uint32_t u = 0x11223344;
891 return *(unsigned char *)&u;
892}
893
894ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
895ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
896ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
897ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
898
899#if ECB_GCC_VERSION(3,0) || ECB_C99
900 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
901#else
902 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
903#endif
904
905#if __cplusplus
906 template<typename T>
907 static inline T ecb_div_rd (T val, T div)
908 {
909 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
910 }
911 template<typename T>
912 static inline T ecb_div_ru (T val, T div)
913 {
914 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
915 }
916#else
917 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
918 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
919#endif
920
921#if ecb_cplusplus_does_not_suck
922 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
923 template<typename T, int N>
924 static inline int ecb_array_length (const T (&arr)[N])
925 {
926 return N;
927 }
928#else
929 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
930#endif
931
932#endif
933
934/* ECB.H END */
935
936#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
937/* if your architecture doesn't need memory fences, e.g. because it is
938 * single-cpu/core, or if you use libev in a project that doesn't use libev
939 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
940 * libev, in which cases the memory fences become nops.
941 * alternatively, you can remove this #error and link against libpthread,
942 * which will then provide the memory fences.
943 */
944# error "memory fences not defined for your architecture, please report"
945#endif
946
947#ifndef ECB_MEMORY_FENCE
948# define ECB_MEMORY_FENCE do { } while (0)
949# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
950# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
951#endif
952
953#define expect_false(cond) ecb_expect_false (cond)
954#define expect_true(cond) ecb_expect_true (cond)
955#define noinline ecb_noinline
956
477#define inline_size static inline 957#define inline_size ecb_inline
478 958
479#if EV_MINIMAL 959#if EV_FEATURE_CODE
960# define inline_speed ecb_inline
961#else
480# define inline_speed static noinline 962# define inline_speed static noinline
481#else
482# define inline_speed static inline
483#endif 963#endif
484 964
485#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 965#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
486 966
487#if EV_MINPRI == EV_MAXPRI 967#if EV_MINPRI == EV_MAXPRI
… …
500#define ev_active(w) ((W)(w))->active 980#define ev_active(w) ((W)(w))->active
501#define ev_at(w) ((WT)(w))->at 981#define ev_at(w) ((WT)(w))->at
502 982
503#if EV_USE_REALTIME 983#if EV_USE_REALTIME
504/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 984/* sig_atomic_t is used to avoid per-thread variables or locking but still */
505/* giving it a reasonably high chance of working on typical architetcures */ 985/* giving it a reasonably high chance of working on typical architectures */
506static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 986static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
507#endif 987#endif
508 988
509#if EV_USE_MONOTONIC 989#if EV_USE_MONOTONIC
510static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 990static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
524# include "ev_win32.c" 1004# include "ev_win32.c"
525#endif 1005#endif
526 1006
527/*****************************************************************************/ 1007/*****************************************************************************/
528 1008
1009/* define a suitable floor function (only used by periodics atm) */
1010
1011#if EV_USE_FLOOR
1012# include <math.h>
1013# define ev_floor(v) floor (v)
1014#else
1015
1016#include <float.h>
1017
1018/* a floor() replacement function, should be independent of ev_tstamp type */
1019static ev_tstamp noinline
1020ev_floor (ev_tstamp v)
1021{
1022 /* the choice of shift factor is not terribly important */
1023#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1024 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1025#else
1026 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1027#endif
1028
1029 /* argument too large for an unsigned long? */
1030 if (expect_false (v >= shift))
1031 {
1032 ev_tstamp f;
1033
1034 if (v == v - 1.)
1035 return v; /* very large number */
1036
1037 f = shift * ev_floor (v * (1. / shift));
1038 return f + ev_floor (v - f);
1039 }
1040
1041 /* special treatment for negative args? */
1042 if (expect_false (v < 0.))
1043 {
1044 ev_tstamp f = -ev_floor (-v);
1045
1046 return f - (f == v ? 0 : 1);
1047 }
1048
1049 /* fits into an unsigned long */
1050 return (unsigned long)v;
1051}
1052
1053#endif
1054
1055/*****************************************************************************/
1056
1057#ifdef __linux
1058# include <sys/utsname.h>
1059#endif
1060
1061static unsigned int noinline ecb_cold
1062ev_linux_version (void)
1063{
1064#ifdef __linux
1065 unsigned int v = 0;
1066 struct utsname buf;
1067 int i;
1068 char *p = buf.release;
1069
1070 if (uname (&buf))
1071 return 0;
1072
1073 for (i = 3+1; --i; )
1074 {
1075 unsigned int c = 0;
1076
1077 for (;;)
1078 {
1079 if (*p >= '0' && *p <= '9')
1080 c = c * 10 + *p++ - '0';
1081 else
1082 {
1083 p += *p == '.';
1084 break;
1085 }
1086 }
1087
1088 v = (v << 8) | c;
1089 }
1090
1091 return v;
1092#else
1093 return 0;
1094#endif
1095}
1096
1097/*****************************************************************************/
1098
1099#if EV_AVOID_STDIO
1100static void noinline ecb_cold
1101ev_printerr (const char *msg)
1102{
1103 write (STDERR_FILENO, msg, strlen (msg));
1104}
1105#endif
1106
529static void (*syserr_cb)(const char *msg); 1107static void (*syserr_cb)(const char *msg) EV_THROW;
530 1108
531void 1109void ecb_cold
532ev_set_syserr_cb (void (*cb)(const char *msg)) 1110ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
533{ 1111{
534 syserr_cb = cb; 1112 syserr_cb = cb;
535} 1113}
536 1114
537static void noinline 1115static void noinline ecb_cold
538ev_syserr (const char *msg) 1116ev_syserr (const char *msg)
539{ 1117{
540 if (!msg) 1118 if (!msg)
541 msg = "(libev) system error"; 1119 msg = "(libev) system error";
542 1120
543 if (syserr_cb) 1121 if (syserr_cb)
544 syserr_cb (msg); 1122 syserr_cb (msg);
545 else 1123 else
546 { 1124 {
547#if EV_AVOID_STDIO 1125#if EV_AVOID_STDIO
548 write (STDERR_FILENO, msg, strlen (msg)); 1126 ev_printerr (msg);
549 write (STDERR_FILENO, ": ", 2); 1127 ev_printerr (": ");
550 msg = strerror (errno); 1128 ev_printerr (strerror (errno));
551 write (STDERR_FILENO, msg, strlen (msg)); 1129 ev_printerr ("\n");
552 write (STDERR_FILENO, "\n", 1);
553#else 1130#else
554 perror (msg); 1131 perror (msg);
555#endif 1132#endif
556 abort (); 1133 abort ();
557 } 1134 }
558} 1135}
559 1136
560static void * 1137static void *
561ev_realloc_emul (void *ptr, long size) 1138ev_realloc_emul (void *ptr, long size) EV_THROW
562{ 1139{
1140#if __GLIBC__
1141 return realloc (ptr, size);
1142#else
563 /* some systems, notably openbsd and darwin, fail to properly 1143 /* some systems, notably openbsd and darwin, fail to properly
564 * implement realloc (x, 0) (as required by both ansi c-98 and 1144 * implement realloc (x, 0) (as required by both ansi c-89 and
565 * the single unix specification, so work around them here. 1145 * the single unix specification, so work around them here.
566 */ 1146 */
567 1147
568 if (size) 1148 if (size)
569 return realloc (ptr, size); 1149 return realloc (ptr, size);
570 1150
571 free (ptr); 1151 free (ptr);
572 return 0; 1152 return 0;
1153#endif
573} 1154}
574 1155
575static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1156static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
576 1157
577void 1158void ecb_cold
578ev_set_allocator (void *(*cb)(void *ptr, long size)) 1159ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
579{ 1160{
580 alloc = cb; 1161 alloc = cb;
581} 1162}
582 1163
583inline_speed void * 1164inline_speed void *
… …
586 ptr = alloc (ptr, size); 1167 ptr = alloc (ptr, size);
587 1168
588 if (!ptr && size) 1169 if (!ptr && size)
589 { 1170 {
590#if EV_AVOID_STDIO 1171#if EV_AVOID_STDIO
591 write (STDERR_FILENO, "libev: memory allocation failed, aborting.", 1172 ev_printerr ("(libev) memory allocation failed, aborting.\n");
592 sizeof ("libev: memory allocation failed, aborting.") - 1);
593#else 1173#else
594 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1174 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
595#endif 1175#endif
596 abort (); 1176 abort ();
597 } 1177 }
598 1178
599 return ptr; 1179 return ptr;
… …
616 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1196 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
617 unsigned char unused; 1197 unsigned char unused;
618#if EV_USE_EPOLL 1198#if EV_USE_EPOLL
619 unsigned int egen; /* generation counter to counter epoll bugs */ 1199 unsigned int egen; /* generation counter to counter epoll bugs */
620#endif 1200#endif
621#if EV_SELECT_IS_WINSOCKET 1201#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
622 SOCKET handle; 1202 SOCKET handle;
1203#endif
1204#if EV_USE_IOCP
1205 OVERLAPPED or, ow;
623#endif 1206#endif
624} ANFD; 1207} ANFD;
625 1208
626/* stores the pending event set for a given watcher */ 1209/* stores the pending event set for a given watcher */
627typedef struct 1210typedef struct
… …
669 #undef VAR 1252 #undef VAR
670 }; 1253 };
671 #include "ev_wrap.h" 1254 #include "ev_wrap.h"
672 1255
673 static struct ev_loop default_loop_struct; 1256 static struct ev_loop default_loop_struct;
674 struct ev_loop *ev_default_loop_ptr; 1257 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
675 1258
676#else 1259#else
677 1260
678 ev_tstamp ev_rt_now; 1261 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
679 #define VAR(name,decl) static decl; 1262 #define VAR(name,decl) static decl;
680 #include "ev_vars.h" 1263 #include "ev_vars.h"
681 #undef VAR 1264 #undef VAR
682 1265
683 static int ev_default_loop_ptr; 1266 static int ev_default_loop_ptr;
684 1267
685#endif 1268#endif
686 1269
687#if EV_MINIMAL < 2 1270#if EV_FEATURE_API
688# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1271# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
689# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1272# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
690# define EV_INVOKE_PENDING invoke_cb (EV_A) 1273# define EV_INVOKE_PENDING invoke_cb (EV_A)
691#else 1274#else
692# define EV_RELEASE_CB (void)0 1275# define EV_RELEASE_CB (void)0
693# define EV_ACQUIRE_CB (void)0 1276# define EV_ACQUIRE_CB (void)0
694# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1277# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
695#endif 1278#endif
696 1279
697#define EVUNLOOP_RECURSE 0x80 1280#define EVBREAK_RECURSE 0x80
698 1281
699/*****************************************************************************/ 1282/*****************************************************************************/
700 1283
701#ifndef EV_HAVE_EV_TIME 1284#ifndef EV_HAVE_EV_TIME
702ev_tstamp 1285ev_tstamp
703ev_time (void) 1286ev_time (void) EV_THROW
704{ 1287{
705#if EV_USE_REALTIME 1288#if EV_USE_REALTIME
706 if (expect_true (have_realtime)) 1289 if (expect_true (have_realtime))
707 { 1290 {
708 struct timespec ts; 1291 struct timespec ts;
… …
732 return ev_time (); 1315 return ev_time ();
733} 1316}
734 1317
735#if EV_MULTIPLICITY 1318#if EV_MULTIPLICITY
736ev_tstamp 1319ev_tstamp
737ev_now (EV_P) 1320ev_now (EV_P) EV_THROW
738{ 1321{
739 return ev_rt_now; 1322 return ev_rt_now;
740} 1323}
741#endif 1324#endif
742 1325
743void 1326void
744ev_sleep (ev_tstamp delay) 1327ev_sleep (ev_tstamp delay) EV_THROW
745{ 1328{
746 if (delay > 0.) 1329 if (delay > 0.)
747 { 1330 {
748#if EV_USE_NANOSLEEP 1331#if EV_USE_NANOSLEEP
749 struct timespec ts; 1332 struct timespec ts;
750 1333
751 ts.tv_sec = (time_t)delay; 1334 EV_TS_SET (ts, delay);
752 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
753
754 nanosleep (&ts, 0); 1335 nanosleep (&ts, 0);
755#elif defined(_WIN32) 1336#elif defined _WIN32
756 Sleep ((unsigned long)(delay * 1e3)); 1337 Sleep ((unsigned long)(delay * 1e3));
757#else 1338#else
758 struct timeval tv; 1339 struct timeval tv;
759 1340
760 tv.tv_sec = (time_t)delay;
761 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
762
763 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1341 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
764 /* something not guaranteed by newer posix versions, but guaranteed */ 1342 /* something not guaranteed by newer posix versions, but guaranteed */
765 /* by older ones */ 1343 /* by older ones */
1344 EV_TV_SET (tv, delay);
766 select (0, 0, 0, 0, &tv); 1345 select (0, 0, 0, 0, &tv);
767#endif 1346#endif
768 } 1347 }
769} 1348}
770 1349
771/*****************************************************************************/ 1350/*****************************************************************************/
772 1351
773#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1352#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
774 1353
775/* find a suitable new size for the given array, */ 1354/* find a suitable new size for the given array, */
776/* hopefully by rounding to a ncie-to-malloc size */ 1355/* hopefully by rounding to a nice-to-malloc size */
777inline_size int 1356inline_size int
778array_nextsize (int elem, int cur, int cnt) 1357array_nextsize (int elem, int cur, int cnt)
779{ 1358{
780 int ncur = cur + 1; 1359 int ncur = cur + 1;
781 1360
782 do 1361 do
783 ncur <<= 1; 1362 ncur <<= 1;
784 while (cnt > ncur); 1363 while (cnt > ncur);
785 1364
786 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1365 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
787 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1366 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
788 { 1367 {
789 ncur *= elem; 1368 ncur *= elem;
790 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1369 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
791 ncur = ncur - sizeof (void *) * 4; 1370 ncur = ncur - sizeof (void *) * 4;
… …
793 } 1372 }
794 1373
795 return ncur; 1374 return ncur;
796} 1375}
797 1376
798static noinline void * 1377static void * noinline ecb_cold
799array_realloc (int elem, void *base, int *cur, int cnt) 1378array_realloc (int elem, void *base, int *cur, int cnt)
800{ 1379{
801 *cur = array_nextsize (elem, *cur, cnt); 1380 *cur = array_nextsize (elem, *cur, cnt);
802 return ev_realloc (base, elem * *cur); 1381 return ev_realloc (base, elem * *cur);
803} 1382}
… …
806 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1385 memset ((void *)(base), 0, sizeof (*(base)) * (count))
807 1386
808#define array_needsize(type,base,cur,cnt,init) \ 1387#define array_needsize(type,base,cur,cnt,init) \
809 if (expect_false ((cnt) > (cur))) \ 1388 if (expect_false ((cnt) > (cur))) \
810 { \ 1389 { \
811 int ocur_ = (cur); \ 1390 int ecb_unused ocur_ = (cur); \
812 (base) = (type *)array_realloc \ 1391 (base) = (type *)array_realloc \
813 (sizeof (type), (base), &(cur), (cnt)); \ 1392 (sizeof (type), (base), &(cur), (cnt)); \
814 init ((base) + (ocur_), (cur) - ocur_); \ 1393 init ((base) + (ocur_), (cur) - ocur_); \
815 } 1394 }
816 1395
… …
834pendingcb (EV_P_ ev_prepare *w, int revents) 1413pendingcb (EV_P_ ev_prepare *w, int revents)
835{ 1414{
836} 1415}
837 1416
838void noinline 1417void noinline
839ev_feed_event (EV_P_ void *w, int revents) 1418ev_feed_event (EV_P_ void *w, int revents) EV_THROW
840{ 1419{
841 W w_ = (W)w; 1420 W w_ = (W)w;
842 int pri = ABSPRI (w_); 1421 int pri = ABSPRI (w_);
843 1422
844 if (expect_false (w_->pending)) 1423 if (expect_false (w_->pending))
… …
848 w_->pending = ++pendingcnt [pri]; 1427 w_->pending = ++pendingcnt [pri];
849 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1428 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
850 pendings [pri][w_->pending - 1].w = w_; 1429 pendings [pri][w_->pending - 1].w = w_;
851 pendings [pri][w_->pending - 1].events = revents; 1430 pendings [pri][w_->pending - 1].events = revents;
852 } 1431 }
1432
1433 pendingpri = NUMPRI - 1;
853} 1434}
854 1435
855inline_speed void 1436inline_speed void
856feed_reverse (EV_P_ W w) 1437feed_reverse (EV_P_ W w)
857{ 1438{
… …
877} 1458}
878 1459
879/*****************************************************************************/ 1460/*****************************************************************************/
880 1461
881inline_speed void 1462inline_speed void
882fd_event_nc (EV_P_ int fd, int revents) 1463fd_event_nocheck (EV_P_ int fd, int revents)
883{ 1464{
884 ANFD *anfd = anfds + fd; 1465 ANFD *anfd = anfds + fd;
885 ev_io *w; 1466 ev_io *w;
886 1467
887 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1468 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
899fd_event (EV_P_ int fd, int revents) 1480fd_event (EV_P_ int fd, int revents)
900{ 1481{
901 ANFD *anfd = anfds + fd; 1482 ANFD *anfd = anfds + fd;
902 1483
903 if (expect_true (!anfd->reify)) 1484 if (expect_true (!anfd->reify))
904 fd_event_nc (EV_A_ fd, revents); 1485 fd_event_nocheck (EV_A_ fd, revents);
905} 1486}
906 1487
907void 1488void
908ev_feed_fd_event (EV_P_ int fd, int revents) 1489ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
909{ 1490{
910 if (fd >= 0 && fd < anfdmax) 1491 if (fd >= 0 && fd < anfdmax)
911 fd_event_nc (EV_A_ fd, revents); 1492 fd_event_nocheck (EV_A_ fd, revents);
912} 1493}
913 1494
914/* make sure the external fd watch events are in-sync */ 1495/* make sure the external fd watch events are in-sync */
915/* with the kernel/libev internal state */ 1496/* with the kernel/libev internal state */
916inline_size void 1497inline_size void
917fd_reify (EV_P) 1498fd_reify (EV_P)
918{ 1499{
919 int i; 1500 int i;
920 1501
1502#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1503 for (i = 0; i < fdchangecnt; ++i)
1504 {
1505 int fd = fdchanges [i];
1506 ANFD *anfd = anfds + fd;
1507
1508 if (anfd->reify & EV__IOFDSET && anfd->head)
1509 {
1510 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1511
1512 if (handle != anfd->handle)
1513 {
1514 unsigned long arg;
1515
1516 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1517
1518 /* handle changed, but fd didn't - we need to do it in two steps */
1519 backend_modify (EV_A_ fd, anfd->events, 0);
1520 anfd->events = 0;
1521 anfd->handle = handle;
1522 }
1523 }
1524 }
1525#endif
1526
921 for (i = 0; i < fdchangecnt; ++i) 1527 for (i = 0; i < fdchangecnt; ++i)
922 { 1528 {
923 int fd = fdchanges [i]; 1529 int fd = fdchanges [i];
924 ANFD *anfd = anfds + fd; 1530 ANFD *anfd = anfds + fd;
925 ev_io *w; 1531 ev_io *w;
926 1532
927 unsigned char events = 0; 1533 unsigned char o_events = anfd->events;
1534 unsigned char o_reify = anfd->reify;
928 1535
929 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1536 anfd->reify = 0;
930 events |= (unsigned char)w->events;
931 1537
932#if EV_SELECT_IS_WINSOCKET 1538 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
933 if (events)
934 { 1539 {
935 unsigned long arg; 1540 anfd->events = 0;
936 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1541
937 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1542 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1543 anfd->events |= (unsigned char)w->events;
1544
1545 if (o_events != anfd->events)
1546 o_reify = EV__IOFDSET; /* actually |= */
938 } 1547 }
939#endif
940 1548
941 { 1549 if (o_reify & EV__IOFDSET)
942 unsigned char o_events = anfd->events;
943 unsigned char o_reify = anfd->reify;
944
945 anfd->reify = 0;
946 anfd->events = events;
947
948 if (o_events != events || o_reify & EV__IOFDSET)
949 backend_modify (EV_A_ fd, o_events, events); 1550 backend_modify (EV_A_ fd, o_events, anfd->events);
950 }
951 } 1551 }
952 1552
953 fdchangecnt = 0; 1553 fdchangecnt = 0;
954} 1554}
955 1555
… …
967 fdchanges [fdchangecnt - 1] = fd; 1567 fdchanges [fdchangecnt - 1] = fd;
968 } 1568 }
969} 1569}
970 1570
971/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1571/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
972inline_speed void 1572inline_speed void ecb_cold
973fd_kill (EV_P_ int fd) 1573fd_kill (EV_P_ int fd)
974{ 1574{
975 ev_io *w; 1575 ev_io *w;
976 1576
977 while ((w = (ev_io *)anfds [fd].head)) 1577 while ((w = (ev_io *)anfds [fd].head))
… …
979 ev_io_stop (EV_A_ w); 1579 ev_io_stop (EV_A_ w);
980 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1580 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
981 } 1581 }
982} 1582}
983 1583
984/* check whether the given fd is atcually valid, for error recovery */ 1584/* check whether the given fd is actually valid, for error recovery */
985inline_size int 1585inline_size int ecb_cold
986fd_valid (int fd) 1586fd_valid (int fd)
987{ 1587{
988#ifdef _WIN32 1588#ifdef _WIN32
989 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1589 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
990#else 1590#else
991 return fcntl (fd, F_GETFD) != -1; 1591 return fcntl (fd, F_GETFD) != -1;
992#endif 1592#endif
993} 1593}
994 1594
995/* called on EBADF to verify fds */ 1595/* called on EBADF to verify fds */
996static void noinline 1596static void noinline ecb_cold
997fd_ebadf (EV_P) 1597fd_ebadf (EV_P)
998{ 1598{
999 int fd; 1599 int fd;
1000 1600
1001 for (fd = 0; fd < anfdmax; ++fd) 1601 for (fd = 0; fd < anfdmax; ++fd)
… …
1003 if (!fd_valid (fd) && errno == EBADF) 1603 if (!fd_valid (fd) && errno == EBADF)
1004 fd_kill (EV_A_ fd); 1604 fd_kill (EV_A_ fd);
1005} 1605}
1006 1606
1007/* called on ENOMEM in select/poll to kill some fds and retry */ 1607/* called on ENOMEM in select/poll to kill some fds and retry */
1008static void noinline 1608static void noinline ecb_cold
1009fd_enomem (EV_P) 1609fd_enomem (EV_P)
1010{ 1610{
1011 int fd; 1611 int fd;
1012 1612
1013 for (fd = anfdmax; fd--; ) 1613 for (fd = anfdmax; fd--; )
… …
1031 anfds [fd].emask = 0; 1631 anfds [fd].emask = 0;
1032 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1632 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1033 } 1633 }
1034} 1634}
1035 1635
1636/* used to prepare libev internal fd's */
1637/* this is not fork-safe */
1638inline_speed void
1639fd_intern (int fd)
1640{
1641#ifdef _WIN32
1642 unsigned long arg = 1;
1643 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1644#else
1645 fcntl (fd, F_SETFD, FD_CLOEXEC);
1646 fcntl (fd, F_SETFL, O_NONBLOCK);
1647#endif
1648}
1649
1036/*****************************************************************************/ 1650/*****************************************************************************/
1037 1651
1038/* 1652/*
1039 * the heap functions want a real array index. array index 0 uis guaranteed to not 1653 * the heap functions want a real array index. array index 0 is guaranteed to not
1040 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1654 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1041 * the branching factor of the d-tree. 1655 * the branching factor of the d-tree.
1042 */ 1656 */
1043 1657
1044/* 1658/*
… …
1192 1806
1193static ANSIG signals [EV_NSIG - 1]; 1807static ANSIG signals [EV_NSIG - 1];
1194 1808
1195/*****************************************************************************/ 1809/*****************************************************************************/
1196 1810
1197/* used to prepare libev internal fd's */ 1811#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1198/* this is not fork-safe */
1199inline_speed void
1200fd_intern (int fd)
1201{
1202#ifdef _WIN32
1203 unsigned long arg = 1;
1204 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1205#else
1206 fcntl (fd, F_SETFD, FD_CLOEXEC);
1207 fcntl (fd, F_SETFL, O_NONBLOCK);
1208#endif
1209}
1210 1812
1211static void noinline 1813static void noinline ecb_cold
1212evpipe_init (EV_P) 1814evpipe_init (EV_P)
1213{ 1815{
1214 if (!ev_is_active (&pipe_w)) 1816 if (!ev_is_active (&pipe_w))
1215 { 1817 {
1216#if EV_USE_EVENTFD 1818# if EV_USE_EVENTFD
1217 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1819 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1218 if (evfd < 0 && errno == EINVAL) 1820 if (evfd < 0 && errno == EINVAL)
1219 evfd = eventfd (0, 0); 1821 evfd = eventfd (0, 0);
1220 1822
1221 if (evfd >= 0) 1823 if (evfd >= 0)
… …
1223 evpipe [0] = -1; 1825 evpipe [0] = -1;
1224 fd_intern (evfd); /* doing it twice doesn't hurt */ 1826 fd_intern (evfd); /* doing it twice doesn't hurt */
1225 ev_io_set (&pipe_w, evfd, EV_READ); 1827 ev_io_set (&pipe_w, evfd, EV_READ);
1226 } 1828 }
1227 else 1829 else
1228#endif 1830# endif
1229 { 1831 {
1230 while (pipe (evpipe)) 1832 while (pipe (evpipe))
1231 ev_syserr ("(libev) error creating signal/async pipe"); 1833 ev_syserr ("(libev) error creating signal/async pipe");
1232 1834
1233 fd_intern (evpipe [0]); 1835 fd_intern (evpipe [0]);
… …
1238 ev_io_start (EV_A_ &pipe_w); 1840 ev_io_start (EV_A_ &pipe_w);
1239 ev_unref (EV_A); /* watcher should not keep loop alive */ 1841 ev_unref (EV_A); /* watcher should not keep loop alive */
1240 } 1842 }
1241} 1843}
1242 1844
1243inline_size void 1845inline_speed void
1244evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1846evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1245{ 1847{
1246 if (!*flag) 1848 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1849
1850 if (expect_true (*flag))
1851 return;
1852
1853 *flag = 1;
1854
1855 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1856
1857 pipe_write_skipped = 1;
1858
1859 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1860
1861 if (pipe_write_wanted)
1247 { 1862 {
1863 int old_errno;
1864
1865 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1866
1248 int old_errno = errno; /* save errno because write might clobber it */ 1867 old_errno = errno; /* save errno because write will clobber it */
1249
1250 *flag = 1;
1251 1868
1252#if EV_USE_EVENTFD 1869#if EV_USE_EVENTFD
1253 if (evfd >= 0) 1870 if (evfd >= 0)
1254 { 1871 {
1255 uint64_t counter = 1; 1872 uint64_t counter = 1;
1256 write (evfd, &counter, sizeof (uint64_t)); 1873 write (evfd, &counter, sizeof (uint64_t));
1257 } 1874 }
1258 else 1875 else
1259#endif 1876#endif
1877 {
1878#ifdef _WIN32
1879 WSABUF buf;
1880 DWORD sent;
1881 buf.buf = &buf;
1882 buf.len = 1;
1883 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1884#else
1260 write (evpipe [1], &old_errno, 1); 1885 write (evpipe [1], &(evpipe [1]), 1);
1886#endif
1887 }
1261 1888
1262 errno = old_errno; 1889 errno = old_errno;
1263 } 1890 }
1264} 1891}
1265 1892
… …
1268static void 1895static void
1269pipecb (EV_P_ ev_io *iow, int revents) 1896pipecb (EV_P_ ev_io *iow, int revents)
1270{ 1897{
1271 int i; 1898 int i;
1272 1899
1900 if (revents & EV_READ)
1901 {
1273#if EV_USE_EVENTFD 1902#if EV_USE_EVENTFD
1274 if (evfd >= 0) 1903 if (evfd >= 0)
1275 { 1904 {
1276 uint64_t counter; 1905 uint64_t counter;
1277 read (evfd, &counter, sizeof (uint64_t)); 1906 read (evfd, &counter, sizeof (uint64_t));
1278 } 1907 }
1279 else 1908 else
1280#endif 1909#endif
1281 { 1910 {
1282 char dummy; 1911 char dummy[4];
1912#ifdef _WIN32
1913 WSABUF buf;
1914 DWORD recvd;
1915 DWORD flags = 0;
1916 buf.buf = dummy;
1917 buf.len = sizeof (dummy);
1918 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1919#else
1283 read (evpipe [0], &dummy, 1); 1920 read (evpipe [0], &dummy, sizeof (dummy));
1921#endif
1922 }
1284 } 1923 }
1285 1924
1925 pipe_write_skipped = 0;
1926
1927 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1928
1929#if EV_SIGNAL_ENABLE
1286 if (sig_pending) 1930 if (sig_pending)
1287 { 1931 {
1288 sig_pending = 0; 1932 sig_pending = 0;
1933
1934 ECB_MEMORY_FENCE_RELEASE;
1289 1935
1290 for (i = EV_NSIG - 1; i--; ) 1936 for (i = EV_NSIG - 1; i--; )
1291 if (expect_false (signals [i].pending)) 1937 if (expect_false (signals [i].pending))
1292 ev_feed_signal_event (EV_A_ i + 1); 1938 ev_feed_signal_event (EV_A_ i + 1);
1293 } 1939 }
1940#endif
1294 1941
1295#if EV_ASYNC_ENABLE 1942#if EV_ASYNC_ENABLE
1296 if (async_pending) 1943 if (async_pending)
1297 { 1944 {
1298 async_pending = 0; 1945 async_pending = 0;
1946
1947 ECB_MEMORY_FENCE_RELEASE;
1299 1948
1300 for (i = asynccnt; i--; ) 1949 for (i = asynccnt; i--; )
1301 if (asyncs [i]->sent) 1950 if (asyncs [i]->sent)
1302 { 1951 {
1303 asyncs [i]->sent = 0; 1952 asyncs [i]->sent = 0;
… …
1307#endif 1956#endif
1308} 1957}
1309 1958
1310/*****************************************************************************/ 1959/*****************************************************************************/
1311 1960
1961void
1962ev_feed_signal (int signum) EV_THROW
1963{
1964#if EV_MULTIPLICITY
1965 EV_P = signals [signum - 1].loop;
1966
1967 if (!EV_A)
1968 return;
1969#endif
1970
1971 if (!ev_active (&pipe_w))
1972 return;
1973
1974 signals [signum - 1].pending = 1;
1975 evpipe_write (EV_A_ &sig_pending);
1976}
1977
1312static void 1978static void
1313ev_sighandler (int signum) 1979ev_sighandler (int signum)
1314{ 1980{
1315#if EV_MULTIPLICITY
1316 EV_P = signals [signum - 1].loop;
1317#endif
1318
1319#ifdef _WIN32 1981#ifdef _WIN32
1320 signal (signum, ev_sighandler); 1982 signal (signum, ev_sighandler);
1321#endif 1983#endif
1322 1984
1323 signals [signum - 1].pending = 1; 1985 ev_feed_signal (signum);
1324 evpipe_write (EV_A_ &sig_pending);
1325} 1986}
1326 1987
1327void noinline 1988void noinline
1328ev_feed_signal_event (EV_P_ int signum) 1989ev_feed_signal_event (EV_P_ int signum) EV_THROW
1329{ 1990{
1330 WL w; 1991 WL w;
1331 1992
1332 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1993 if (expect_false (signum <= 0 || signum > EV_NSIG))
1333 return; 1994 return;
… …
1366 break; 2027 break;
1367 } 2028 }
1368} 2029}
1369#endif 2030#endif
1370 2031
2032#endif
2033
1371/*****************************************************************************/ 2034/*****************************************************************************/
1372 2035
2036#if EV_CHILD_ENABLE
1373static WL childs [EV_PID_HASHSIZE]; 2037static WL childs [EV_PID_HASHSIZE];
1374
1375#ifndef _WIN32
1376 2038
1377static ev_signal childev; 2039static ev_signal childev;
1378 2040
1379#ifndef WIFCONTINUED 2041#ifndef WIFCONTINUED
1380# define WIFCONTINUED(status) 0 2042# define WIFCONTINUED(status) 0
… …
1385child_reap (EV_P_ int chain, int pid, int status) 2047child_reap (EV_P_ int chain, int pid, int status)
1386{ 2048{
1387 ev_child *w; 2049 ev_child *w;
1388 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2050 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1389 2051
1390 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2052 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1391 { 2053 {
1392 if ((w->pid == pid || !w->pid) 2054 if ((w->pid == pid || !w->pid)
1393 && (!traced || (w->flags & 1))) 2055 && (!traced || (w->flags & 1)))
1394 { 2056 {
1395 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2057 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1420 /* make sure we are called again until all children have been reaped */ 2082 /* make sure we are called again until all children have been reaped */
1421 /* we need to do it this way so that the callback gets called before we continue */ 2083 /* we need to do it this way so that the callback gets called before we continue */
1422 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2084 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1423 2085
1424 child_reap (EV_A_ pid, pid, status); 2086 child_reap (EV_A_ pid, pid, status);
1425 if (EV_PID_HASHSIZE > 1) 2087 if ((EV_PID_HASHSIZE) > 1)
1426 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2088 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1427} 2089}
1428 2090
1429#endif 2091#endif
1430 2092
1431/*****************************************************************************/ 2093/*****************************************************************************/
1432 2094
2095#if EV_USE_IOCP
2096# include "ev_iocp.c"
2097#endif
1433#if EV_USE_PORT 2098#if EV_USE_PORT
1434# include "ev_port.c" 2099# include "ev_port.c"
1435#endif 2100#endif
1436#if EV_USE_KQUEUE 2101#if EV_USE_KQUEUE
1437# include "ev_kqueue.c" 2102# include "ev_kqueue.c"
… …
1444#endif 2109#endif
1445#if EV_USE_SELECT 2110#if EV_USE_SELECT
1446# include "ev_select.c" 2111# include "ev_select.c"
1447#endif 2112#endif
1448 2113
1449int 2114int ecb_cold
1450ev_version_major (void) 2115ev_version_major (void) EV_THROW
1451{ 2116{
1452 return EV_VERSION_MAJOR; 2117 return EV_VERSION_MAJOR;
1453} 2118}
1454 2119
1455int 2120int ecb_cold
1456ev_version_minor (void) 2121ev_version_minor (void) EV_THROW
1457{ 2122{
1458 return EV_VERSION_MINOR; 2123 return EV_VERSION_MINOR;
1459} 2124}
1460 2125
1461/* return true if we are running with elevated privileges and should ignore env variables */ 2126/* return true if we are running with elevated privileges and should ignore env variables */
1462int inline_size 2127int inline_size ecb_cold
1463enable_secure (void) 2128enable_secure (void)
1464{ 2129{
1465#ifdef _WIN32 2130#ifdef _WIN32
1466 return 0; 2131 return 0;
1467#else 2132#else
1468 return getuid () != geteuid () 2133 return getuid () != geteuid ()
1469 || getgid () != getegid (); 2134 || getgid () != getegid ();
1470#endif 2135#endif
1471} 2136}
1472 2137
1473unsigned int 2138unsigned int ecb_cold
1474ev_supported_backends (void) 2139ev_supported_backends (void) EV_THROW
1475{ 2140{
1476 unsigned int flags = 0; 2141 unsigned int flags = 0;
1477 2142
1478 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2143 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1479 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2144 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1482 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2147 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1483 2148
1484 return flags; 2149 return flags;
1485} 2150}
1486 2151
1487unsigned int 2152unsigned int ecb_cold
1488ev_recommended_backends (void) 2153ev_recommended_backends (void) EV_THROW
1489{ 2154{
1490 unsigned int flags = ev_supported_backends (); 2155 unsigned int flags = ev_supported_backends ();
1491 2156
1492#ifndef __NetBSD__ 2157#ifndef __NetBSD__
1493 /* kqueue is borked on everything but netbsd apparently */ 2158 /* kqueue is borked on everything but netbsd apparently */
… …
1497#ifdef __APPLE__ 2162#ifdef __APPLE__
1498 /* only select works correctly on that "unix-certified" platform */ 2163 /* only select works correctly on that "unix-certified" platform */
1499 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2164 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1500 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2165 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1501#endif 2166#endif
2167#ifdef __FreeBSD__
2168 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2169#endif
1502 2170
1503 return flags; 2171 return flags;
1504} 2172}
1505 2173
2174unsigned int ecb_cold
2175ev_embeddable_backends (void) EV_THROW
2176{
2177 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2178
2179 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2180 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2181 flags &= ~EVBACKEND_EPOLL;
2182
2183 return flags;
2184}
2185
1506unsigned int 2186unsigned int
1507ev_embeddable_backends (void) 2187ev_backend (EV_P) EV_THROW
1508{ 2188{
1509 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2189 return backend;
1510
1511 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1512 /* please fix it and tell me how to detect the fix */
1513 flags &= ~EVBACKEND_EPOLL;
1514
1515 return flags;
1516} 2190}
1517 2191
2192#if EV_FEATURE_API
1518unsigned int 2193unsigned int
1519ev_backend (EV_P) 2194ev_iteration (EV_P) EV_THROW
1520{ 2195{
1521 return backend; 2196 return loop_count;
1522} 2197}
1523 2198
1524#if EV_MINIMAL < 2
1525unsigned int 2199unsigned int
1526ev_loop_count (EV_P) 2200ev_depth (EV_P) EV_THROW
1527{
1528 return loop_count;
1529}
1530
1531unsigned int
1532ev_loop_depth (EV_P)
1533{ 2201{
1534 return loop_depth; 2202 return loop_depth;
1535} 2203}
1536 2204
1537void 2205void
1538ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1539{ 2207{
1540 io_blocktime = interval; 2208 io_blocktime = interval;
1541} 2209}
1542 2210
1543void 2211void
1544ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2212ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1545{ 2213{
1546 timeout_blocktime = interval; 2214 timeout_blocktime = interval;
1547} 2215}
1548 2216
1549void 2217void
1550ev_set_userdata (EV_P_ void *data) 2218ev_set_userdata (EV_P_ void *data) EV_THROW
1551{ 2219{
1552 userdata = data; 2220 userdata = data;
1553} 2221}
1554 2222
1555void * 2223void *
1556ev_userdata (EV_P) 2224ev_userdata (EV_P) EV_THROW
1557{ 2225{
1558 return userdata; 2226 return userdata;
1559} 2227}
1560 2228
2229void
1561void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2230ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1562{ 2231{
1563 invoke_cb = invoke_pending_cb; 2232 invoke_cb = invoke_pending_cb;
1564} 2233}
1565 2234
2235void
1566void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2236ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1567{ 2237{
1568 release_cb = release; 2238 release_cb = release;
1569 acquire_cb = acquire; 2239 acquire_cb = acquire;
1570} 2240}
1571#endif 2241#endif
1572 2242
1573/* initialise a loop structure, must be zero-initialised */ 2243/* initialise a loop structure, must be zero-initialised */
1574static void noinline 2244static void noinline ecb_cold
1575loop_init (EV_P_ unsigned int flags) 2245loop_init (EV_P_ unsigned int flags) EV_THROW
1576{ 2246{
1577 if (!backend) 2247 if (!backend)
1578 { 2248 {
2249 origflags = flags;
2250
1579#if EV_USE_REALTIME 2251#if EV_USE_REALTIME
1580 if (!have_realtime) 2252 if (!have_realtime)
1581 { 2253 {
1582 struct timespec ts; 2254 struct timespec ts;
1583 2255
… …
1605 if (!(flags & EVFLAG_NOENV) 2277 if (!(flags & EVFLAG_NOENV)
1606 && !enable_secure () 2278 && !enable_secure ()
1607 && getenv ("LIBEV_FLAGS")) 2279 && getenv ("LIBEV_FLAGS"))
1608 flags = atoi (getenv ("LIBEV_FLAGS")); 2280 flags = atoi (getenv ("LIBEV_FLAGS"));
1609 2281
1610 ev_rt_now = ev_time (); 2282 ev_rt_now = ev_time ();
1611 mn_now = get_clock (); 2283 mn_now = get_clock ();
1612 now_floor = mn_now; 2284 now_floor = mn_now;
1613 rtmn_diff = ev_rt_now - mn_now; 2285 rtmn_diff = ev_rt_now - mn_now;
1614#if EV_MINIMAL < 2 2286#if EV_FEATURE_API
1615 invoke_cb = ev_invoke_pending; 2287 invoke_cb = ev_invoke_pending;
1616#endif 2288#endif
1617 2289
1618 io_blocktime = 0.; 2290 io_blocktime = 0.;
1619 timeout_blocktime = 0.; 2291 timeout_blocktime = 0.;
1620 backend = 0; 2292 backend = 0;
1621 backend_fd = -1; 2293 backend_fd = -1;
1622 sig_pending = 0; 2294 sig_pending = 0;
1623#if EV_ASYNC_ENABLE 2295#if EV_ASYNC_ENABLE
1624 async_pending = 0; 2296 async_pending = 0;
1625#endif 2297#endif
2298 pipe_write_skipped = 0;
2299 pipe_write_wanted = 0;
1626#if EV_USE_INOTIFY 2300#if EV_USE_INOTIFY
1627 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2301 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1628#endif 2302#endif
1629#if EV_USE_SIGNALFD 2303#if EV_USE_SIGNALFD
1630 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2304 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1631#endif 2305#endif
1632 2306
1633 if (!(flags & 0x0000ffffU)) 2307 if (!(flags & EVBACKEND_MASK))
1634 flags |= ev_recommended_backends (); 2308 flags |= ev_recommended_backends ();
1635 2309
2310#if EV_USE_IOCP
2311 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2312#endif
1636#if EV_USE_PORT 2313#if EV_USE_PORT
1637 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2314 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1638#endif 2315#endif
1639#if EV_USE_KQUEUE 2316#if EV_USE_KQUEUE
1640 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1649 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2326 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1650#endif 2327#endif
1651 2328
1652 ev_prepare_init (&pending_w, pendingcb); 2329 ev_prepare_init (&pending_w, pendingcb);
1653 2330
2331#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1654 ev_init (&pipe_w, pipecb); 2332 ev_init (&pipe_w, pipecb);
1655 ev_set_priority (&pipe_w, EV_MAXPRI); 2333 ev_set_priority (&pipe_w, EV_MAXPRI);
2334#endif
1656 } 2335 }
1657} 2336}
1658 2337
1659/* free up a loop structure */ 2338/* free up a loop structure */
1660static void noinline 2339void ecb_cold
1661loop_destroy (EV_P) 2340ev_loop_destroy (EV_P)
1662{ 2341{
1663 int i; 2342 int i;
2343
2344#if EV_MULTIPLICITY
2345 /* mimic free (0) */
2346 if (!EV_A)
2347 return;
2348#endif
2349
2350#if EV_CLEANUP_ENABLE
2351 /* queue cleanup watchers (and execute them) */
2352 if (expect_false (cleanupcnt))
2353 {
2354 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2355 EV_INVOKE_PENDING;
2356 }
2357#endif
2358
2359#if EV_CHILD_ENABLE
2360 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2361 {
2362 ev_ref (EV_A); /* child watcher */
2363 ev_signal_stop (EV_A_ &childev);
2364 }
2365#endif
1664 2366
1665 if (ev_is_active (&pipe_w)) 2367 if (ev_is_active (&pipe_w))
1666 { 2368 {
1667 /*ev_ref (EV_A);*/ 2369 /*ev_ref (EV_A);*/
1668 /*ev_io_stop (EV_A_ &pipe_w);*/ 2370 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1690#endif 2392#endif
1691 2393
1692 if (backend_fd >= 0) 2394 if (backend_fd >= 0)
1693 close (backend_fd); 2395 close (backend_fd);
1694 2396
2397#if EV_USE_IOCP
2398 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2399#endif
1695#if EV_USE_PORT 2400#if EV_USE_PORT
1696 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2401 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1697#endif 2402#endif
1698#if EV_USE_KQUEUE 2403#if EV_USE_KQUEUE
1699 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2404 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1726 array_free (periodic, EMPTY); 2431 array_free (periodic, EMPTY);
1727#endif 2432#endif
1728#if EV_FORK_ENABLE 2433#if EV_FORK_ENABLE
1729 array_free (fork, EMPTY); 2434 array_free (fork, EMPTY);
1730#endif 2435#endif
2436#if EV_CLEANUP_ENABLE
2437 array_free (cleanup, EMPTY);
2438#endif
1731 array_free (prepare, EMPTY); 2439 array_free (prepare, EMPTY);
1732 array_free (check, EMPTY); 2440 array_free (check, EMPTY);
1733#if EV_ASYNC_ENABLE 2441#if EV_ASYNC_ENABLE
1734 array_free (async, EMPTY); 2442 array_free (async, EMPTY);
1735#endif 2443#endif
1736 2444
1737 backend = 0; 2445 backend = 0;
2446
2447#if EV_MULTIPLICITY
2448 if (ev_is_default_loop (EV_A))
2449#endif
2450 ev_default_loop_ptr = 0;
2451#if EV_MULTIPLICITY
2452 else
2453 ev_free (EV_A);
2454#endif
1738} 2455}
1739 2456
1740#if EV_USE_INOTIFY 2457#if EV_USE_INOTIFY
1741inline_size void infy_fork (EV_P); 2458inline_size void infy_fork (EV_P);
1742#endif 2459#endif
… …
1757 infy_fork (EV_A); 2474 infy_fork (EV_A);
1758#endif 2475#endif
1759 2476
1760 if (ev_is_active (&pipe_w)) 2477 if (ev_is_active (&pipe_w))
1761 { 2478 {
1762 /* this "locks" the handlers against writing to the pipe */ 2479 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1763 /* while we modify the fd vars */
1764 sig_pending = 1;
1765#if EV_ASYNC_ENABLE
1766 async_pending = 1;
1767#endif
1768 2480
1769 ev_ref (EV_A); 2481 ev_ref (EV_A);
1770 ev_io_stop (EV_A_ &pipe_w); 2482 ev_io_stop (EV_A_ &pipe_w);
1771 2483
1772#if EV_USE_EVENTFD 2484#if EV_USE_EVENTFD
… …
1778 { 2490 {
1779 EV_WIN32_CLOSE_FD (evpipe [0]); 2491 EV_WIN32_CLOSE_FD (evpipe [0]);
1780 EV_WIN32_CLOSE_FD (evpipe [1]); 2492 EV_WIN32_CLOSE_FD (evpipe [1]);
1781 } 2493 }
1782 2494
2495#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1783 evpipe_init (EV_A); 2496 evpipe_init (EV_A);
1784 /* now iterate over everything, in case we missed something */ 2497 /* now iterate over everything, in case we missed something */
1785 pipecb (EV_A_ &pipe_w, EV_READ); 2498 pipecb (EV_A_ &pipe_w, EV_READ);
2499#endif
1786 } 2500 }
1787 2501
1788 postfork = 0; 2502 postfork = 0;
1789} 2503}
1790 2504
1791#if EV_MULTIPLICITY 2505#if EV_MULTIPLICITY
1792 2506
1793struct ev_loop * 2507struct ev_loop * ecb_cold
1794ev_loop_new (unsigned int flags) 2508ev_loop_new (unsigned int flags) EV_THROW
1795{ 2509{
1796 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2510 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1797 2511
1798 memset (EV_A, 0, sizeof (struct ev_loop)); 2512 memset (EV_A, 0, sizeof (struct ev_loop));
1799 loop_init (EV_A_ flags); 2513 loop_init (EV_A_ flags);
1800 2514
1801 if (ev_backend (EV_A)) 2515 if (ev_backend (EV_A))
1802 return EV_A; 2516 return EV_A;
1803 2517
2518 ev_free (EV_A);
1804 return 0; 2519 return 0;
1805} 2520}
1806 2521
1807void
1808ev_loop_destroy (EV_P)
1809{
1810 loop_destroy (EV_A);
1811 ev_free (loop);
1812}
1813
1814void
1815ev_loop_fork (EV_P)
1816{
1817 postfork = 1; /* must be in line with ev_default_fork */
1818}
1819#endif /* multiplicity */ 2522#endif /* multiplicity */
1820 2523
1821#if EV_VERIFY 2524#if EV_VERIFY
1822static void noinline 2525static void noinline ecb_cold
1823verify_watcher (EV_P_ W w) 2526verify_watcher (EV_P_ W w)
1824{ 2527{
1825 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2528 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1826 2529
1827 if (w->pending) 2530 if (w->pending)
1828 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2531 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1829} 2532}
1830 2533
1831static void noinline 2534static void noinline ecb_cold
1832verify_heap (EV_P_ ANHE *heap, int N) 2535verify_heap (EV_P_ ANHE *heap, int N)
1833{ 2536{
1834 int i; 2537 int i;
1835 2538
1836 for (i = HEAP0; i < N + HEAP0; ++i) 2539 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1841 2544
1842 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2545 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1843 } 2546 }
1844} 2547}
1845 2548
1846static void noinline 2549static void noinline ecb_cold
1847array_verify (EV_P_ W *ws, int cnt) 2550array_verify (EV_P_ W *ws, int cnt)
1848{ 2551{
1849 while (cnt--) 2552 while (cnt--)
1850 { 2553 {
1851 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2554 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1852 verify_watcher (EV_A_ ws [cnt]); 2555 verify_watcher (EV_A_ ws [cnt]);
1853 } 2556 }
1854} 2557}
1855#endif 2558#endif
1856 2559
1857#if EV_MINIMAL < 2 2560#if EV_FEATURE_API
1858void 2561void ecb_cold
1859ev_loop_verify (EV_P) 2562ev_verify (EV_P) EV_THROW
1860{ 2563{
1861#if EV_VERIFY 2564#if EV_VERIFY
1862 int i; 2565 int i;
1863 WL w; 2566 WL w, w2;
1864 2567
1865 assert (activecnt >= -1); 2568 assert (activecnt >= -1);
1866 2569
1867 assert (fdchangemax >= fdchangecnt); 2570 assert (fdchangemax >= fdchangecnt);
1868 for (i = 0; i < fdchangecnt; ++i) 2571 for (i = 0; i < fdchangecnt; ++i)
1869 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2572 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1870 2573
1871 assert (anfdmax >= 0); 2574 assert (anfdmax >= 0);
1872 for (i = 0; i < anfdmax; ++i) 2575 for (i = 0; i < anfdmax; ++i)
2576 {
2577 int j = 0;
2578
1873 for (w = anfds [i].head; w; w = w->next) 2579 for (w = w2 = anfds [i].head; w; w = w->next)
1874 { 2580 {
1875 verify_watcher (EV_A_ (W)w); 2581 verify_watcher (EV_A_ (W)w);
2582
2583 if (j++ & 1)
2584 {
2585 assert (("libev: io watcher list contains a loop", w != w2));
2586 w2 = w2->next;
2587 }
2588
1876 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2589 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1877 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2590 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1878 } 2591 }
2592 }
1879 2593
1880 assert (timermax >= timercnt); 2594 assert (timermax >= timercnt);
1881 verify_heap (EV_A_ timers, timercnt); 2595 verify_heap (EV_A_ timers, timercnt);
1882 2596
1883#if EV_PERIODIC_ENABLE 2597#if EV_PERIODIC_ENABLE
… …
1898#if EV_FORK_ENABLE 2612#if EV_FORK_ENABLE
1899 assert (forkmax >= forkcnt); 2613 assert (forkmax >= forkcnt);
1900 array_verify (EV_A_ (W *)forks, forkcnt); 2614 array_verify (EV_A_ (W *)forks, forkcnt);
1901#endif 2615#endif
1902 2616
2617#if EV_CLEANUP_ENABLE
2618 assert (cleanupmax >= cleanupcnt);
2619 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2620#endif
2621
1903#if EV_ASYNC_ENABLE 2622#if EV_ASYNC_ENABLE
1904 assert (asyncmax >= asynccnt); 2623 assert (asyncmax >= asynccnt);
1905 array_verify (EV_A_ (W *)asyncs, asynccnt); 2624 array_verify (EV_A_ (W *)asyncs, asynccnt);
1906#endif 2625#endif
1907 2626
2627#if EV_PREPARE_ENABLE
1908 assert (preparemax >= preparecnt); 2628 assert (preparemax >= preparecnt);
1909 array_verify (EV_A_ (W *)prepares, preparecnt); 2629 array_verify (EV_A_ (W *)prepares, preparecnt);
2630#endif
1910 2631
2632#if EV_CHECK_ENABLE
1911 assert (checkmax >= checkcnt); 2633 assert (checkmax >= checkcnt);
1912 array_verify (EV_A_ (W *)checks, checkcnt); 2634 array_verify (EV_A_ (W *)checks, checkcnt);
2635#endif
1913 2636
1914# if 0 2637# if 0
2638#if EV_CHILD_ENABLE
1915 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2639 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1916 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2640 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2641#endif
1917# endif 2642# endif
1918#endif 2643#endif
1919} 2644}
1920#endif 2645#endif
1921 2646
1922#if EV_MULTIPLICITY 2647#if EV_MULTIPLICITY
1923struct ev_loop * 2648struct ev_loop * ecb_cold
1924ev_default_loop_init (unsigned int flags)
1925#else 2649#else
1926int 2650int
2651#endif
1927ev_default_loop (unsigned int flags) 2652ev_default_loop (unsigned int flags) EV_THROW
1928#endif
1929{ 2653{
1930 if (!ev_default_loop_ptr) 2654 if (!ev_default_loop_ptr)
1931 { 2655 {
1932#if EV_MULTIPLICITY 2656#if EV_MULTIPLICITY
1933 EV_P = ev_default_loop_ptr = &default_loop_struct; 2657 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1937 2661
1938 loop_init (EV_A_ flags); 2662 loop_init (EV_A_ flags);
1939 2663
1940 if (ev_backend (EV_A)) 2664 if (ev_backend (EV_A))
1941 { 2665 {
1942#ifndef _WIN32 2666#if EV_CHILD_ENABLE
1943 ev_signal_init (&childev, childcb, SIGCHLD); 2667 ev_signal_init (&childev, childcb, SIGCHLD);
1944 ev_set_priority (&childev, EV_MAXPRI); 2668 ev_set_priority (&childev, EV_MAXPRI);
1945 ev_signal_start (EV_A_ &childev); 2669 ev_signal_start (EV_A_ &childev);
1946 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2670 ev_unref (EV_A); /* child watcher should not keep loop alive */
1947#endif 2671#endif
… …
1952 2676
1953 return ev_default_loop_ptr; 2677 return ev_default_loop_ptr;
1954} 2678}
1955 2679
1956void 2680void
1957ev_default_destroy (void) 2681ev_loop_fork (EV_P) EV_THROW
1958{ 2682{
1959#if EV_MULTIPLICITY
1960 EV_P = ev_default_loop_ptr;
1961#endif
1962
1963 ev_default_loop_ptr = 0;
1964
1965#ifndef _WIN32
1966 ev_ref (EV_A); /* child watcher */
1967 ev_signal_stop (EV_A_ &childev);
1968#endif
1969
1970 loop_destroy (EV_A);
1971}
1972
1973void
1974ev_default_fork (void)
1975{
1976#if EV_MULTIPLICITY
1977 EV_P = ev_default_loop_ptr;
1978#endif
1979
1980 postfork = 1; /* must be in line with ev_loop_fork */ 2683 postfork = 1; /* must be in line with ev_default_fork */
1981} 2684}
1982 2685
1983/*****************************************************************************/ 2686/*****************************************************************************/
1984 2687
1985void 2688void
… …
1987{ 2690{
1988 EV_CB_INVOKE ((W)w, revents); 2691 EV_CB_INVOKE ((W)w, revents);
1989} 2692}
1990 2693
1991unsigned int 2694unsigned int
1992ev_pending_count (EV_P) 2695ev_pending_count (EV_P) EV_THROW
1993{ 2696{
1994 int pri; 2697 int pri;
1995 unsigned int count = 0; 2698 unsigned int count = 0;
1996 2699
1997 for (pri = NUMPRI; pri--; ) 2700 for (pri = NUMPRI; pri--; )
… …
2001} 2704}
2002 2705
2003void noinline 2706void noinline
2004ev_invoke_pending (EV_P) 2707ev_invoke_pending (EV_P)
2005{ 2708{
2006 int pri; 2709 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2007
2008 for (pri = NUMPRI; pri--; )
2009 while (pendingcnt [pri]) 2710 while (pendingcnt [pendingpri])
2010 { 2711 {
2011 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2712 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2012
2013 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2014 /* ^ this is no longer true, as pending_w could be here */
2015 2713
2016 p->w->pending = 0; 2714 p->w->pending = 0;
2017 EV_CB_INVOKE (p->w, p->events); 2715 EV_CB_INVOKE (p->w, p->events);
2018 EV_FREQUENT_CHECK; 2716 EV_FREQUENT_CHECK;
2019 } 2717 }
… …
2076 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2077 feed_reverse (EV_A_ (W)w); 2775 feed_reverse (EV_A_ (W)w);
2078 } 2776 }
2079 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2777 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2080 2778
2081 feed_reverse_done (EV_A_ EV_TIMEOUT); 2779 feed_reverse_done (EV_A_ EV_TIMER);
2082 } 2780 }
2083} 2781}
2084 2782
2085#if EV_PERIODIC_ENABLE 2783#if EV_PERIODIC_ENABLE
2784
2785static void noinline
2786periodic_recalc (EV_P_ ev_periodic *w)
2787{
2788 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2789 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2790
2791 /* the above almost always errs on the low side */
2792 while (at <= ev_rt_now)
2793 {
2794 ev_tstamp nat = at + w->interval;
2795
2796 /* when resolution fails us, we use ev_rt_now */
2797 if (expect_false (nat == at))
2798 {
2799 at = ev_rt_now;
2800 break;
2801 }
2802
2803 at = nat;
2804 }
2805
2806 ev_at (w) = at;
2807}
2808
2086/* make periodics pending */ 2809/* make periodics pending */
2087inline_size void 2810inline_size void
2088periodics_reify (EV_P) 2811periodics_reify (EV_P)
2089{ 2812{
2090 EV_FREQUENT_CHECK; 2813 EV_FREQUENT_CHECK;
2091 2814
2092 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2815 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2093 { 2816 {
2094 int feed_count = 0;
2095
2096 do 2817 do
2097 { 2818 {
2098 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2819 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2099 2820
2100 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2821 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2109 ANHE_at_cache (periodics [HEAP0]); 2830 ANHE_at_cache (periodics [HEAP0]);
2110 downheap (periodics, periodiccnt, HEAP0); 2831 downheap (periodics, periodiccnt, HEAP0);
2111 } 2832 }
2112 else if (w->interval) 2833 else if (w->interval)
2113 { 2834 {
2114 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2835 periodic_recalc (EV_A_ w);
2115 /* if next trigger time is not sufficiently in the future, put it there */
2116 /* this might happen because of floating point inexactness */
2117 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2118 {
2119 ev_at (w) += w->interval;
2120
2121 /* if interval is unreasonably low we might still have a time in the past */
2122 /* so correct this. this will make the periodic very inexact, but the user */
2123 /* has effectively asked to get triggered more often than possible */
2124 if (ev_at (w) < ev_rt_now)
2125 ev_at (w) = ev_rt_now;
2126 }
2127
2128 ANHE_at_cache (periodics [HEAP0]); 2836 ANHE_at_cache (periodics [HEAP0]);
2129 downheap (periodics, periodiccnt, HEAP0); 2837 downheap (periodics, periodiccnt, HEAP0);
2130 } 2838 }
2131 else 2839 else
2132 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2840 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2139 feed_reverse_done (EV_A_ EV_PERIODIC); 2847 feed_reverse_done (EV_A_ EV_PERIODIC);
2140 } 2848 }
2141} 2849}
2142 2850
2143/* simply recalculate all periodics */ 2851/* simply recalculate all periodics */
2144/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2852/* TODO: maybe ensure that at least one event happens when jumping forward? */
2145static void noinline 2853static void noinline ecb_cold
2146periodics_reschedule (EV_P) 2854periodics_reschedule (EV_P)
2147{ 2855{
2148 int i; 2856 int i;
2149 2857
2150 /* adjust periodics after time jump */ 2858 /* adjust periodics after time jump */
… …
2153 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2861 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2154 2862
2155 if (w->reschedule_cb) 2863 if (w->reschedule_cb)
2156 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2864 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2157 else if (w->interval) 2865 else if (w->interval)
2158 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2866 periodic_recalc (EV_A_ w);
2159 2867
2160 ANHE_at_cache (periodics [i]); 2868 ANHE_at_cache (periodics [i]);
2161 } 2869 }
2162 2870
2163 reheap (periodics, periodiccnt); 2871 reheap (periodics, periodiccnt);
2164} 2872}
2165#endif 2873#endif
2166 2874
2167/* adjust all timers by a given offset */ 2875/* adjust all timers by a given offset */
2168static void noinline 2876static void noinline ecb_cold
2169timers_reschedule (EV_P_ ev_tstamp adjust) 2877timers_reschedule (EV_P_ ev_tstamp adjust)
2170{ 2878{
2171 int i; 2879 int i;
2172 2880
2173 for (i = 0; i < timercnt; ++i) 2881 for (i = 0; i < timercnt; ++i)
… …
2210 * doesn't hurt either as we only do this on time-jumps or 2918 * doesn't hurt either as we only do this on time-jumps or
2211 * in the unlikely event of having been preempted here. 2919 * in the unlikely event of having been preempted here.
2212 */ 2920 */
2213 for (i = 4; --i; ) 2921 for (i = 4; --i; )
2214 { 2922 {
2923 ev_tstamp diff;
2215 rtmn_diff = ev_rt_now - mn_now; 2924 rtmn_diff = ev_rt_now - mn_now;
2216 2925
2926 diff = odiff - rtmn_diff;
2927
2217 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2928 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2218 return; /* all is well */ 2929 return; /* all is well */
2219 2930
2220 ev_rt_now = ev_time (); 2931 ev_rt_now = ev_time ();
2221 mn_now = get_clock (); 2932 mn_now = get_clock ();
2222 now_floor = mn_now; 2933 now_floor = mn_now;
… …
2244 2955
2245 mn_now = ev_rt_now; 2956 mn_now = ev_rt_now;
2246 } 2957 }
2247} 2958}
2248 2959
2249void 2960int
2250ev_loop (EV_P_ int flags) 2961ev_run (EV_P_ int flags)
2251{ 2962{
2252#if EV_MINIMAL < 2 2963#if EV_FEATURE_API
2253 ++loop_depth; 2964 ++loop_depth;
2254#endif 2965#endif
2255 2966
2256 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2967 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2257 2968
2258 loop_done = EVUNLOOP_CANCEL; 2969 loop_done = EVBREAK_CANCEL;
2259 2970
2260 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2971 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2261 2972
2262 do 2973 do
2263 { 2974 {
2264#if EV_VERIFY >= 2 2975#if EV_VERIFY >= 2
2265 ev_loop_verify (EV_A); 2976 ev_verify (EV_A);
2266#endif 2977#endif
2267 2978
2268#ifndef _WIN32 2979#ifndef _WIN32
2269 if (expect_false (curpid)) /* penalise the forking check even more */ 2980 if (expect_false (curpid)) /* penalise the forking check even more */
2270 if (expect_false (getpid () != curpid)) 2981 if (expect_false (getpid () != curpid))
… …
2282 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2993 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2283 EV_INVOKE_PENDING; 2994 EV_INVOKE_PENDING;
2284 } 2995 }
2285#endif 2996#endif
2286 2997
2998#if EV_PREPARE_ENABLE
2287 /* queue prepare watchers (and execute them) */ 2999 /* queue prepare watchers (and execute them) */
2288 if (expect_false (preparecnt)) 3000 if (expect_false (preparecnt))
2289 { 3001 {
2290 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3002 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2291 EV_INVOKE_PENDING; 3003 EV_INVOKE_PENDING;
2292 } 3004 }
3005#endif
2293 3006
2294 if (expect_false (loop_done)) 3007 if (expect_false (loop_done))
2295 break; 3008 break;
2296 3009
2297 /* we might have forked, so reify kernel state if necessary */ 3010 /* we might have forked, so reify kernel state if necessary */
… …
2304 /* calculate blocking time */ 3017 /* calculate blocking time */
2305 { 3018 {
2306 ev_tstamp waittime = 0.; 3019 ev_tstamp waittime = 0.;
2307 ev_tstamp sleeptime = 0.; 3020 ev_tstamp sleeptime = 0.;
2308 3021
3022 /* remember old timestamp for io_blocktime calculation */
3023 ev_tstamp prev_mn_now = mn_now;
3024
3025 /* update time to cancel out callback processing overhead */
3026 time_update (EV_A_ 1e100);
3027
3028 /* from now on, we want a pipe-wake-up */
3029 pipe_write_wanted = 1;
3030
3031 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3032
2309 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3033 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2310 { 3034 {
2311 /* remember old timestamp for io_blocktime calculation */
2312 ev_tstamp prev_mn_now = mn_now;
2313
2314 /* update time to cancel out callback processing overhead */
2315 time_update (EV_A_ 1e100);
2316
2317 waittime = MAX_BLOCKTIME; 3035 waittime = MAX_BLOCKTIME;
2318 3036
2319 if (timercnt) 3037 if (timercnt)
2320 { 3038 {
2321 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3039 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2322 if (waittime > to) waittime = to; 3040 if (waittime > to) waittime = to;
2323 } 3041 }
2324 3042
2325#if EV_PERIODIC_ENABLE 3043#if EV_PERIODIC_ENABLE
2326 if (periodiccnt) 3044 if (periodiccnt)
2327 { 3045 {
2328 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3046 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2329 if (waittime > to) waittime = to; 3047 if (waittime > to) waittime = to;
2330 } 3048 }
2331#endif 3049#endif
2332 3050
2333 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3051 /* don't let timeouts decrease the waittime below timeout_blocktime */
2334 if (expect_false (waittime < timeout_blocktime)) 3052 if (expect_false (waittime < timeout_blocktime))
2335 waittime = timeout_blocktime; 3053 waittime = timeout_blocktime;
3054
3055 /* at this point, we NEED to wait, so we have to ensure */
3056 /* to pass a minimum nonzero value to the backend */
3057 if (expect_false (waittime < backend_mintime))
3058 waittime = backend_mintime;
2336 3059
2337 /* extra check because io_blocktime is commonly 0 */ 3060 /* extra check because io_blocktime is commonly 0 */
2338 if (expect_false (io_blocktime)) 3061 if (expect_false (io_blocktime))
2339 { 3062 {
2340 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3063 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2341 3064
2342 if (sleeptime > waittime - backend_fudge) 3065 if (sleeptime > waittime - backend_mintime)
2343 sleeptime = waittime - backend_fudge; 3066 sleeptime = waittime - backend_mintime;
2344 3067
2345 if (expect_true (sleeptime > 0.)) 3068 if (expect_true (sleeptime > 0.))
2346 { 3069 {
2347 ev_sleep (sleeptime); 3070 ev_sleep (sleeptime);
2348 waittime -= sleeptime; 3071 waittime -= sleeptime;
2349 } 3072 }
2350 } 3073 }
2351 } 3074 }
2352 3075
2353#if EV_MINIMAL < 2 3076#if EV_FEATURE_API
2354 ++loop_count; 3077 ++loop_count;
2355#endif 3078#endif
2356 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3079 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2357 backend_poll (EV_A_ waittime); 3080 backend_poll (EV_A_ waittime);
2358 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3081 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3082
3083 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3084
3085 if (pipe_write_skipped)
3086 {
3087 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3088 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3089 }
3090
2359 3091
2360 /* update ev_rt_now, do magic */ 3092 /* update ev_rt_now, do magic */
2361 time_update (EV_A_ waittime + sleeptime); 3093 time_update (EV_A_ waittime + sleeptime);
2362 } 3094 }
2363 3095
… …
2370#if EV_IDLE_ENABLE 3102#if EV_IDLE_ENABLE
2371 /* queue idle watchers unless other events are pending */ 3103 /* queue idle watchers unless other events are pending */
2372 idle_reify (EV_A); 3104 idle_reify (EV_A);
2373#endif 3105#endif
2374 3106
3107#if EV_CHECK_ENABLE
2375 /* queue check watchers, to be executed first */ 3108 /* queue check watchers, to be executed first */
2376 if (expect_false (checkcnt)) 3109 if (expect_false (checkcnt))
2377 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3110 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3111#endif
2378 3112
2379 EV_INVOKE_PENDING; 3113 EV_INVOKE_PENDING;
2380 } 3114 }
2381 while (expect_true ( 3115 while (expect_true (
2382 activecnt 3116 activecnt
2383 && !loop_done 3117 && !loop_done
2384 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3118 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2385 )); 3119 ));
2386 3120
2387 if (loop_done == EVUNLOOP_ONE) 3121 if (loop_done == EVBREAK_ONE)
2388 loop_done = EVUNLOOP_CANCEL; 3122 loop_done = EVBREAK_CANCEL;
2389 3123
2390#if EV_MINIMAL < 2 3124#if EV_FEATURE_API
2391 --loop_depth; 3125 --loop_depth;
2392#endif 3126#endif
3127
3128 return activecnt;
2393} 3129}
2394 3130
2395void 3131void
2396ev_unloop (EV_P_ int how) 3132ev_break (EV_P_ int how) EV_THROW
2397{ 3133{
2398 loop_done = how; 3134 loop_done = how;
2399} 3135}
2400 3136
2401void 3137void
2402ev_ref (EV_P) 3138ev_ref (EV_P) EV_THROW
2403{ 3139{
2404 ++activecnt; 3140 ++activecnt;
2405} 3141}
2406 3142
2407void 3143void
2408ev_unref (EV_P) 3144ev_unref (EV_P) EV_THROW
2409{ 3145{
2410 --activecnt; 3146 --activecnt;
2411} 3147}
2412 3148
2413void 3149void
2414ev_now_update (EV_P) 3150ev_now_update (EV_P) EV_THROW
2415{ 3151{
2416 time_update (EV_A_ 1e100); 3152 time_update (EV_A_ 1e100);
2417} 3153}
2418 3154
2419void 3155void
2420ev_suspend (EV_P) 3156ev_suspend (EV_P) EV_THROW
2421{ 3157{
2422 ev_now_update (EV_A); 3158 ev_now_update (EV_A);
2423} 3159}
2424 3160
2425void 3161void
2426ev_resume (EV_P) 3162ev_resume (EV_P) EV_THROW
2427{ 3163{
2428 ev_tstamp mn_prev = mn_now; 3164 ev_tstamp mn_prev = mn_now;
2429 3165
2430 ev_now_update (EV_A); 3166 ev_now_update (EV_A);
2431 timers_reschedule (EV_A_ mn_now - mn_prev); 3167 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2470 w->pending = 0; 3206 w->pending = 0;
2471 } 3207 }
2472} 3208}
2473 3209
2474int 3210int
2475ev_clear_pending (EV_P_ void *w) 3211ev_clear_pending (EV_P_ void *w) EV_THROW
2476{ 3212{
2477 W w_ = (W)w; 3213 W w_ = (W)w;
2478 int pending = w_->pending; 3214 int pending = w_->pending;
2479 3215
2480 if (expect_true (pending)) 3216 if (expect_true (pending))
… …
2513} 3249}
2514 3250
2515/*****************************************************************************/ 3251/*****************************************************************************/
2516 3252
2517void noinline 3253void noinline
2518ev_io_start (EV_P_ ev_io *w) 3254ev_io_start (EV_P_ ev_io *w) EV_THROW
2519{ 3255{
2520 int fd = w->fd; 3256 int fd = w->fd;
2521 3257
2522 if (expect_false (ev_is_active (w))) 3258 if (expect_false (ev_is_active (w)))
2523 return; 3259 return;
… …
2529 3265
2530 ev_start (EV_A_ (W)w, 1); 3266 ev_start (EV_A_ (W)w, 1);
2531 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3267 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2532 wlist_add (&anfds[fd].head, (WL)w); 3268 wlist_add (&anfds[fd].head, (WL)w);
2533 3269
3270 /* common bug, apparently */
3271 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3272
2534 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3273 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2535 w->events &= ~EV__IOFDSET; 3274 w->events &= ~EV__IOFDSET;
2536 3275
2537 EV_FREQUENT_CHECK; 3276 EV_FREQUENT_CHECK;
2538} 3277}
2539 3278
2540void noinline 3279void noinline
2541ev_io_stop (EV_P_ ev_io *w) 3280ev_io_stop (EV_P_ ev_io *w) EV_THROW
2542{ 3281{
2543 clear_pending (EV_A_ (W)w); 3282 clear_pending (EV_A_ (W)w);
2544 if (expect_false (!ev_is_active (w))) 3283 if (expect_false (!ev_is_active (w)))
2545 return; 3284 return;
2546 3285
… …
2549 EV_FREQUENT_CHECK; 3288 EV_FREQUENT_CHECK;
2550 3289
2551 wlist_del (&anfds[w->fd].head, (WL)w); 3290 wlist_del (&anfds[w->fd].head, (WL)w);
2552 ev_stop (EV_A_ (W)w); 3291 ev_stop (EV_A_ (W)w);
2553 3292
2554 fd_change (EV_A_ w->fd, 1); 3293 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2555 3294
2556 EV_FREQUENT_CHECK; 3295 EV_FREQUENT_CHECK;
2557} 3296}
2558 3297
2559void noinline 3298void noinline
2560ev_timer_start (EV_P_ ev_timer *w) 3299ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2561{ 3300{
2562 if (expect_false (ev_is_active (w))) 3301 if (expect_false (ev_is_active (w)))
2563 return; 3302 return;
2564 3303
2565 ev_at (w) += mn_now; 3304 ev_at (w) += mn_now;
… …
2579 3318
2580 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3319 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2581} 3320}
2582 3321
2583void noinline 3322void noinline
2584ev_timer_stop (EV_P_ ev_timer *w) 3323ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2585{ 3324{
2586 clear_pending (EV_A_ (W)w); 3325 clear_pending (EV_A_ (W)w);
2587 if (expect_false (!ev_is_active (w))) 3326 if (expect_false (!ev_is_active (w)))
2588 return; 3327 return;
2589 3328
… …
2609 3348
2610 EV_FREQUENT_CHECK; 3349 EV_FREQUENT_CHECK;
2611} 3350}
2612 3351
2613void noinline 3352void noinline
2614ev_timer_again (EV_P_ ev_timer *w) 3353ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2615{ 3354{
2616 EV_FREQUENT_CHECK; 3355 EV_FREQUENT_CHECK;
3356
3357 clear_pending (EV_A_ (W)w);
2617 3358
2618 if (ev_is_active (w)) 3359 if (ev_is_active (w))
2619 { 3360 {
2620 if (w->repeat) 3361 if (w->repeat)
2621 { 3362 {
… …
2634 3375
2635 EV_FREQUENT_CHECK; 3376 EV_FREQUENT_CHECK;
2636} 3377}
2637 3378
2638ev_tstamp 3379ev_tstamp
2639ev_timer_remaining (EV_P_ ev_timer *w) 3380ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2640{ 3381{
2641 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3382 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2642} 3383}
2643 3384
2644#if EV_PERIODIC_ENABLE 3385#if EV_PERIODIC_ENABLE
2645void noinline 3386void noinline
2646ev_periodic_start (EV_P_ ev_periodic *w) 3387ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2647{ 3388{
2648 if (expect_false (ev_is_active (w))) 3389 if (expect_false (ev_is_active (w)))
2649 return; 3390 return;
2650 3391
2651 if (w->reschedule_cb) 3392 if (w->reschedule_cb)
2652 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3393 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2653 else if (w->interval) 3394 else if (w->interval)
2654 { 3395 {
2655 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3396 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2656 /* this formula differs from the one in periodic_reify because we do not always round up */ 3397 periodic_recalc (EV_A_ w);
2657 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2658 } 3398 }
2659 else 3399 else
2660 ev_at (w) = w->offset; 3400 ev_at (w) = w->offset;
2661 3401
2662 EV_FREQUENT_CHECK; 3402 EV_FREQUENT_CHECK;
… …
2672 3412
2673 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3413 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2674} 3414}
2675 3415
2676void noinline 3416void noinline
2677ev_periodic_stop (EV_P_ ev_periodic *w) 3417ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2678{ 3418{
2679 clear_pending (EV_A_ (W)w); 3419 clear_pending (EV_A_ (W)w);
2680 if (expect_false (!ev_is_active (w))) 3420 if (expect_false (!ev_is_active (w)))
2681 return; 3421 return;
2682 3422
… …
2700 3440
2701 EV_FREQUENT_CHECK; 3441 EV_FREQUENT_CHECK;
2702} 3442}
2703 3443
2704void noinline 3444void noinline
2705ev_periodic_again (EV_P_ ev_periodic *w) 3445ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2706{ 3446{
2707 /* TODO: use adjustheap and recalculation */ 3447 /* TODO: use adjustheap and recalculation */
2708 ev_periodic_stop (EV_A_ w); 3448 ev_periodic_stop (EV_A_ w);
2709 ev_periodic_start (EV_A_ w); 3449 ev_periodic_start (EV_A_ w);
2710} 3450}
… …
2712 3452
2713#ifndef SA_RESTART 3453#ifndef SA_RESTART
2714# define SA_RESTART 0 3454# define SA_RESTART 0
2715#endif 3455#endif
2716 3456
3457#if EV_SIGNAL_ENABLE
3458
2717void noinline 3459void noinline
2718ev_signal_start (EV_P_ ev_signal *w) 3460ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2719{ 3461{
2720 if (expect_false (ev_is_active (w))) 3462 if (expect_false (ev_is_active (w)))
2721 return; 3463 return;
2722 3464
2723 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3465 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2781 sa.sa_handler = ev_sighandler; 3523 sa.sa_handler = ev_sighandler;
2782 sigfillset (&sa.sa_mask); 3524 sigfillset (&sa.sa_mask);
2783 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3525 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2784 sigaction (w->signum, &sa, 0); 3526 sigaction (w->signum, &sa, 0);
2785 3527
3528 if (origflags & EVFLAG_NOSIGMASK)
3529 {
2786 sigemptyset (&sa.sa_mask); 3530 sigemptyset (&sa.sa_mask);
2787 sigaddset (&sa.sa_mask, w->signum); 3531 sigaddset (&sa.sa_mask, w->signum);
2788 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3532 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3533 }
2789#endif 3534#endif
2790 } 3535 }
2791 3536
2792 EV_FREQUENT_CHECK; 3537 EV_FREQUENT_CHECK;
2793} 3538}
2794 3539
2795void noinline 3540void noinline
2796ev_signal_stop (EV_P_ ev_signal *w) 3541ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2797{ 3542{
2798 clear_pending (EV_A_ (W)w); 3543 clear_pending (EV_A_ (W)w);
2799 if (expect_false (!ev_is_active (w))) 3544 if (expect_false (!ev_is_active (w)))
2800 return; 3545 return;
2801 3546
… …
2827 } 3572 }
2828 3573
2829 EV_FREQUENT_CHECK; 3574 EV_FREQUENT_CHECK;
2830} 3575}
2831 3576
3577#endif
3578
3579#if EV_CHILD_ENABLE
3580
2832void 3581void
2833ev_child_start (EV_P_ ev_child *w) 3582ev_child_start (EV_P_ ev_child *w) EV_THROW
2834{ 3583{
2835#if EV_MULTIPLICITY 3584#if EV_MULTIPLICITY
2836 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3585 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2837#endif 3586#endif
2838 if (expect_false (ev_is_active (w))) 3587 if (expect_false (ev_is_active (w)))
2839 return; 3588 return;
2840 3589
2841 EV_FREQUENT_CHECK; 3590 EV_FREQUENT_CHECK;
2842 3591
2843 ev_start (EV_A_ (W)w, 1); 3592 ev_start (EV_A_ (W)w, 1);
2844 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3593 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845 3594
2846 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
2847} 3596}
2848 3597
2849void 3598void
2850ev_child_stop (EV_P_ ev_child *w) 3599ev_child_stop (EV_P_ ev_child *w) EV_THROW
2851{ 3600{
2852 clear_pending (EV_A_ (W)w); 3601 clear_pending (EV_A_ (W)w);
2853 if (expect_false (!ev_is_active (w))) 3602 if (expect_false (!ev_is_active (w)))
2854 return; 3603 return;
2855 3604
2856 EV_FREQUENT_CHECK; 3605 EV_FREQUENT_CHECK;
2857 3606
2858 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3607 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2859 ev_stop (EV_A_ (W)w); 3608 ev_stop (EV_A_ (W)w);
2860 3609
2861 EV_FREQUENT_CHECK; 3610 EV_FREQUENT_CHECK;
2862} 3611}
3612
3613#endif
2863 3614
2864#if EV_STAT_ENABLE 3615#if EV_STAT_ENABLE
2865 3616
2866# ifdef _WIN32 3617# ifdef _WIN32
2867# undef lstat 3618# undef lstat
… …
2928 if (!pend || pend == path) 3679 if (!pend || pend == path)
2929 break; 3680 break;
2930 3681
2931 *pend = 0; 3682 *pend = 0;
2932 w->wd = inotify_add_watch (fs_fd, path, mask); 3683 w->wd = inotify_add_watch (fs_fd, path, mask);
2933 } 3684 }
2934 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3685 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2935 } 3686 }
2936 } 3687 }
2937 3688
2938 if (w->wd >= 0) 3689 if (w->wd >= 0)
2939 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3690 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2940 3691
2941 /* now re-arm timer, if required */ 3692 /* now re-arm timer, if required */
2942 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3693 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2943 ev_timer_again (EV_A_ &w->timer); 3694 ev_timer_again (EV_A_ &w->timer);
2944 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3695 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2952 3703
2953 if (wd < 0) 3704 if (wd < 0)
2954 return; 3705 return;
2955 3706
2956 w->wd = -2; 3707 w->wd = -2;
2957 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3708 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2958 wlist_del (&fs_hash [slot].head, (WL)w); 3709 wlist_del (&fs_hash [slot].head, (WL)w);
2959 3710
2960 /* remove this watcher, if others are watching it, they will rearm */ 3711 /* remove this watcher, if others are watching it, they will rearm */
2961 inotify_rm_watch (fs_fd, wd); 3712 inotify_rm_watch (fs_fd, wd);
2962} 3713}
… …
2964static void noinline 3715static void noinline
2965infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3716infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2966{ 3717{
2967 if (slot < 0) 3718 if (slot < 0)
2968 /* overflow, need to check for all hash slots */ 3719 /* overflow, need to check for all hash slots */
2969 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3720 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2970 infy_wd (EV_A_ slot, wd, ev); 3721 infy_wd (EV_A_ slot, wd, ev);
2971 else 3722 else
2972 { 3723 {
2973 WL w_; 3724 WL w_;
2974 3725
2975 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3726 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2976 { 3727 {
2977 ev_stat *w = (ev_stat *)w_; 3728 ev_stat *w = (ev_stat *)w_;
2978 w_ = w_->next; /* lets us remove this watcher and all before it */ 3729 w_ = w_->next; /* lets us remove this watcher and all before it */
2979 3730
2980 if (w->wd == wd || wd == -1) 3731 if (w->wd == wd || wd == -1)
2981 { 3732 {
2982 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3733 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2983 { 3734 {
2984 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3735 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2985 w->wd = -1; 3736 w->wd = -1;
2986 infy_add (EV_A_ w); /* re-add, no matter what */ 3737 infy_add (EV_A_ w); /* re-add, no matter what */
2987 } 3738 }
2988 3739
2989 stat_timer_cb (EV_A_ &w->timer, 0); 3740 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3005 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3756 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3006 ofs += sizeof (struct inotify_event) + ev->len; 3757 ofs += sizeof (struct inotify_event) + ev->len;
3007 } 3758 }
3008} 3759}
3009 3760
3010inline_size unsigned int
3011ev_linux_version (void)
3012{
3013 struct utsname buf;
3014 unsigned int v;
3015 int i;
3016 char *p = buf.release;
3017
3018 if (uname (&buf))
3019 return 0;
3020
3021 for (i = 3+1; --i; )
3022 {
3023 unsigned int c = 0;
3024
3025 for (;;)
3026 {
3027 if (*p >= '0' && *p <= '9')
3028 c = c * 10 + *p++ - '0';
3029 else
3030 {
3031 p += *p == '.';
3032 break;
3033 }
3034 }
3035
3036 v = (v << 8) | c;
3037 }
3038
3039 return v;
3040}
3041
3042inline_size void 3761inline_size void ecb_cold
3043ev_check_2625 (EV_P) 3762ev_check_2625 (EV_P)
3044{ 3763{
3045 /* kernels < 2.6.25 are borked 3764 /* kernels < 2.6.25 are borked
3046 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3765 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3047 */ 3766 */
… …
3052} 3771}
3053 3772
3054inline_size int 3773inline_size int
3055infy_newfd (void) 3774infy_newfd (void)
3056{ 3775{
3057#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3776#if defined IN_CLOEXEC && defined IN_NONBLOCK
3058 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3777 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3059 if (fd >= 0) 3778 if (fd >= 0)
3060 return fd; 3779 return fd;
3061#endif 3780#endif
3062 return inotify_init (); 3781 return inotify_init ();
… …
3103 ev_io_set (&fs_w, fs_fd, EV_READ); 3822 ev_io_set (&fs_w, fs_fd, EV_READ);
3104 ev_io_start (EV_A_ &fs_w); 3823 ev_io_start (EV_A_ &fs_w);
3105 ev_unref (EV_A); 3824 ev_unref (EV_A);
3106 } 3825 }
3107 3826
3108 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3827 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3109 { 3828 {
3110 WL w_ = fs_hash [slot].head; 3829 WL w_ = fs_hash [slot].head;
3111 fs_hash [slot].head = 0; 3830 fs_hash [slot].head = 0;
3112 3831
3113 while (w_) 3832 while (w_)
… …
3137#else 3856#else
3138# define EV_LSTAT(p,b) lstat (p, b) 3857# define EV_LSTAT(p,b) lstat (p, b)
3139#endif 3858#endif
3140 3859
3141void 3860void
3142ev_stat_stat (EV_P_ ev_stat *w) 3861ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3143{ 3862{
3144 if (lstat (w->path, &w->attr) < 0) 3863 if (lstat (w->path, &w->attr) < 0)
3145 w->attr.st_nlink = 0; 3864 w->attr.st_nlink = 0;
3146 else if (!w->attr.st_nlink) 3865 else if (!w->attr.st_nlink)
3147 w->attr.st_nlink = 1; 3866 w->attr.st_nlink = 1;
… …
3186 ev_feed_event (EV_A_ w, EV_STAT); 3905 ev_feed_event (EV_A_ w, EV_STAT);
3187 } 3906 }
3188} 3907}
3189 3908
3190void 3909void
3191ev_stat_start (EV_P_ ev_stat *w) 3910ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3192{ 3911{
3193 if (expect_false (ev_is_active (w))) 3912 if (expect_false (ev_is_active (w)))
3194 return; 3913 return;
3195 3914
3196 ev_stat_stat (EV_A_ w); 3915 ev_stat_stat (EV_A_ w);
… …
3217 3936
3218 EV_FREQUENT_CHECK; 3937 EV_FREQUENT_CHECK;
3219} 3938}
3220 3939
3221void 3940void
3222ev_stat_stop (EV_P_ ev_stat *w) 3941ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3223{ 3942{
3224 clear_pending (EV_A_ (W)w); 3943 clear_pending (EV_A_ (W)w);
3225 if (expect_false (!ev_is_active (w))) 3944 if (expect_false (!ev_is_active (w)))
3226 return; 3945 return;
3227 3946
… …
3243} 3962}
3244#endif 3963#endif
3245 3964
3246#if EV_IDLE_ENABLE 3965#if EV_IDLE_ENABLE
3247void 3966void
3248ev_idle_start (EV_P_ ev_idle *w) 3967ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3249{ 3968{
3250 if (expect_false (ev_is_active (w))) 3969 if (expect_false (ev_is_active (w)))
3251 return; 3970 return;
3252 3971
3253 pri_adjust (EV_A_ (W)w); 3972 pri_adjust (EV_A_ (W)w);
… …
3266 3985
3267 EV_FREQUENT_CHECK; 3986 EV_FREQUENT_CHECK;
3268} 3987}
3269 3988
3270void 3989void
3271ev_idle_stop (EV_P_ ev_idle *w) 3990ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3272{ 3991{
3273 clear_pending (EV_A_ (W)w); 3992 clear_pending (EV_A_ (W)w);
3274 if (expect_false (!ev_is_active (w))) 3993 if (expect_false (!ev_is_active (w)))
3275 return; 3994 return;
3276 3995
… …
3288 4007
3289 EV_FREQUENT_CHECK; 4008 EV_FREQUENT_CHECK;
3290} 4009}
3291#endif 4010#endif
3292 4011
4012#if EV_PREPARE_ENABLE
3293void 4013void
3294ev_prepare_start (EV_P_ ev_prepare *w) 4014ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3295{ 4015{
3296 if (expect_false (ev_is_active (w))) 4016 if (expect_false (ev_is_active (w)))
3297 return; 4017 return;
3298 4018
3299 EV_FREQUENT_CHECK; 4019 EV_FREQUENT_CHECK;
… …
3304 4024
3305 EV_FREQUENT_CHECK; 4025 EV_FREQUENT_CHECK;
3306} 4026}
3307 4027
3308void 4028void
3309ev_prepare_stop (EV_P_ ev_prepare *w) 4029ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3310{ 4030{
3311 clear_pending (EV_A_ (W)w); 4031 clear_pending (EV_A_ (W)w);
3312 if (expect_false (!ev_is_active (w))) 4032 if (expect_false (!ev_is_active (w)))
3313 return; 4033 return;
3314 4034
… …
3323 4043
3324 ev_stop (EV_A_ (W)w); 4044 ev_stop (EV_A_ (W)w);
3325 4045
3326 EV_FREQUENT_CHECK; 4046 EV_FREQUENT_CHECK;
3327} 4047}
4048#endif
3328 4049
4050#if EV_CHECK_ENABLE
3329void 4051void
3330ev_check_start (EV_P_ ev_check *w) 4052ev_check_start (EV_P_ ev_check *w) EV_THROW
3331{ 4053{
3332 if (expect_false (ev_is_active (w))) 4054 if (expect_false (ev_is_active (w)))
3333 return; 4055 return;
3334 4056
3335 EV_FREQUENT_CHECK; 4057 EV_FREQUENT_CHECK;
… …
3340 4062
3341 EV_FREQUENT_CHECK; 4063 EV_FREQUENT_CHECK;
3342} 4064}
3343 4065
3344void 4066void
3345ev_check_stop (EV_P_ ev_check *w) 4067ev_check_stop (EV_P_ ev_check *w) EV_THROW
3346{ 4068{
3347 clear_pending (EV_A_ (W)w); 4069 clear_pending (EV_A_ (W)w);
3348 if (expect_false (!ev_is_active (w))) 4070 if (expect_false (!ev_is_active (w)))
3349 return; 4071 return;
3350 4072
… …
3359 4081
3360 ev_stop (EV_A_ (W)w); 4082 ev_stop (EV_A_ (W)w);
3361 4083
3362 EV_FREQUENT_CHECK; 4084 EV_FREQUENT_CHECK;
3363} 4085}
4086#endif
3364 4087
3365#if EV_EMBED_ENABLE 4088#if EV_EMBED_ENABLE
3366void noinline 4089void noinline
3367ev_embed_sweep (EV_P_ ev_embed *w) 4090ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3368{ 4091{
3369 ev_loop (w->other, EVLOOP_NONBLOCK); 4092 ev_run (w->other, EVRUN_NOWAIT);
3370} 4093}
3371 4094
3372static void 4095static void
3373embed_io_cb (EV_P_ ev_io *io, int revents) 4096embed_io_cb (EV_P_ ev_io *io, int revents)
3374{ 4097{
3375 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4098 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3376 4099
3377 if (ev_cb (w)) 4100 if (ev_cb (w))
3378 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4101 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3379 else 4102 else
3380 ev_loop (w->other, EVLOOP_NONBLOCK); 4103 ev_run (w->other, EVRUN_NOWAIT);
3381} 4104}
3382 4105
3383static void 4106static void
3384embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4107embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3385{ 4108{
… …
3389 EV_P = w->other; 4112 EV_P = w->other;
3390 4113
3391 while (fdchangecnt) 4114 while (fdchangecnt)
3392 { 4115 {
3393 fd_reify (EV_A); 4116 fd_reify (EV_A);
3394 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4117 ev_run (EV_A_ EVRUN_NOWAIT);
3395 } 4118 }
3396 } 4119 }
3397} 4120}
3398 4121
3399static void 4122static void
… …
3405 4128
3406 { 4129 {
3407 EV_P = w->other; 4130 EV_P = w->other;
3408 4131
3409 ev_loop_fork (EV_A); 4132 ev_loop_fork (EV_A);
3410 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4133 ev_run (EV_A_ EVRUN_NOWAIT);
3411 } 4134 }
3412 4135
3413 ev_embed_start (EV_A_ w); 4136 ev_embed_start (EV_A_ w);
3414} 4137}
3415 4138
… …
3420 ev_idle_stop (EV_A_ idle); 4143 ev_idle_stop (EV_A_ idle);
3421} 4144}
3422#endif 4145#endif
3423 4146
3424void 4147void
3425ev_embed_start (EV_P_ ev_embed *w) 4148ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3426{ 4149{
3427 if (expect_false (ev_is_active (w))) 4150 if (expect_false (ev_is_active (w)))
3428 return; 4151 return;
3429 4152
3430 { 4153 {
… …
3451 4174
3452 EV_FREQUENT_CHECK; 4175 EV_FREQUENT_CHECK;
3453} 4176}
3454 4177
3455void 4178void
3456ev_embed_stop (EV_P_ ev_embed *w) 4179ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3457{ 4180{
3458 clear_pending (EV_A_ (W)w); 4181 clear_pending (EV_A_ (W)w);
3459 if (expect_false (!ev_is_active (w))) 4182 if (expect_false (!ev_is_active (w)))
3460 return; 4183 return;
3461 4184
… …
3471} 4194}
3472#endif 4195#endif
3473 4196
3474#if EV_FORK_ENABLE 4197#if EV_FORK_ENABLE
3475void 4198void
3476ev_fork_start (EV_P_ ev_fork *w) 4199ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3477{ 4200{
3478 if (expect_false (ev_is_active (w))) 4201 if (expect_false (ev_is_active (w)))
3479 return; 4202 return;
3480 4203
3481 EV_FREQUENT_CHECK; 4204 EV_FREQUENT_CHECK;
… …
3486 4209
3487 EV_FREQUENT_CHECK; 4210 EV_FREQUENT_CHECK;
3488} 4211}
3489 4212
3490void 4213void
3491ev_fork_stop (EV_P_ ev_fork *w) 4214ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3492{ 4215{
3493 clear_pending (EV_A_ (W)w); 4216 clear_pending (EV_A_ (W)w);
3494 if (expect_false (!ev_is_active (w))) 4217 if (expect_false (!ev_is_active (w)))
3495 return; 4218 return;
3496 4219
… …
3507 4230
3508 EV_FREQUENT_CHECK; 4231 EV_FREQUENT_CHECK;
3509} 4232}
3510#endif 4233#endif
3511 4234
4235#if EV_CLEANUP_ENABLE
4236void
4237ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4238{
4239 if (expect_false (ev_is_active (w)))
4240 return;
4241
4242 EV_FREQUENT_CHECK;
4243
4244 ev_start (EV_A_ (W)w, ++cleanupcnt);
4245 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4246 cleanups [cleanupcnt - 1] = w;
4247
4248 /* cleanup watchers should never keep a refcount on the loop */
4249 ev_unref (EV_A);
4250 EV_FREQUENT_CHECK;
4251}
4252
4253void
4254ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4255{
4256 clear_pending (EV_A_ (W)w);
4257 if (expect_false (!ev_is_active (w)))
4258 return;
4259
4260 EV_FREQUENT_CHECK;
4261 ev_ref (EV_A);
4262
4263 {
4264 int active = ev_active (w);
4265
4266 cleanups [active - 1] = cleanups [--cleanupcnt];
4267 ev_active (cleanups [active - 1]) = active;
4268 }
4269
4270 ev_stop (EV_A_ (W)w);
4271
4272 EV_FREQUENT_CHECK;
4273}
4274#endif
4275
3512#if EV_ASYNC_ENABLE 4276#if EV_ASYNC_ENABLE
3513void 4277void
3514ev_async_start (EV_P_ ev_async *w) 4278ev_async_start (EV_P_ ev_async *w) EV_THROW
3515{ 4279{
3516 if (expect_false (ev_is_active (w))) 4280 if (expect_false (ev_is_active (w)))
3517 return; 4281 return;
4282
4283 w->sent = 0;
3518 4284
3519 evpipe_init (EV_A); 4285 evpipe_init (EV_A);
3520 4286
3521 EV_FREQUENT_CHECK; 4287 EV_FREQUENT_CHECK;
3522 4288
… …
3526 4292
3527 EV_FREQUENT_CHECK; 4293 EV_FREQUENT_CHECK;
3528} 4294}
3529 4295
3530void 4296void
3531ev_async_stop (EV_P_ ev_async *w) 4297ev_async_stop (EV_P_ ev_async *w) EV_THROW
3532{ 4298{
3533 clear_pending (EV_A_ (W)w); 4299 clear_pending (EV_A_ (W)w);
3534 if (expect_false (!ev_is_active (w))) 4300 if (expect_false (!ev_is_active (w)))
3535 return; 4301 return;
3536 4302
… …
3547 4313
3548 EV_FREQUENT_CHECK; 4314 EV_FREQUENT_CHECK;
3549} 4315}
3550 4316
3551void 4317void
3552ev_async_send (EV_P_ ev_async *w) 4318ev_async_send (EV_P_ ev_async *w) EV_THROW
3553{ 4319{
3554 w->sent = 1; 4320 w->sent = 1;
3555 evpipe_write (EV_A_ &async_pending); 4321 evpipe_write (EV_A_ &async_pending);
3556} 4322}
3557#endif 4323#endif
… …
3594 4360
3595 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4361 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3596} 4362}
3597 4363
3598void 4364void
3599ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4365ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3600{ 4366{
3601 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4367 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3602 4368
3603 if (expect_false (!once)) 4369 if (expect_false (!once))
3604 { 4370 {
3605 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4371 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3606 return; 4372 return;
3607 } 4373 }
3608 4374
3609 once->cb = cb; 4375 once->cb = cb;
3610 once->arg = arg; 4376 once->arg = arg;
… …
3625} 4391}
3626 4392
3627/*****************************************************************************/ 4393/*****************************************************************************/
3628 4394
3629#if EV_WALK_ENABLE 4395#if EV_WALK_ENABLE
3630void 4396void ecb_cold
3631ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4397ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3632{ 4398{
3633 int i, j; 4399 int i, j;
3634 ev_watcher_list *wl, *wn; 4400 ev_watcher_list *wl, *wn;
3635 4401
3636 if (types & (EV_IO | EV_EMBED)) 4402 if (types & (EV_IO | EV_EMBED))
… …
3679 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4445 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3680#endif 4446#endif
3681 4447
3682#if EV_IDLE_ENABLE 4448#if EV_IDLE_ENABLE
3683 if (types & EV_IDLE) 4449 if (types & EV_IDLE)
3684 for (j = NUMPRI; i--; ) 4450 for (j = NUMPRI; j--; )
3685 for (i = idlecnt [j]; i--; ) 4451 for (i = idlecnt [j]; i--; )
3686 cb (EV_A_ EV_IDLE, idles [j][i]); 4452 cb (EV_A_ EV_IDLE, idles [j][i]);
3687#endif 4453#endif
3688 4454
3689#if EV_FORK_ENABLE 4455#if EV_FORK_ENABLE
… …
3697 if (types & EV_ASYNC) 4463 if (types & EV_ASYNC)
3698 for (i = asynccnt; i--; ) 4464 for (i = asynccnt; i--; )
3699 cb (EV_A_ EV_ASYNC, asyncs [i]); 4465 cb (EV_A_ EV_ASYNC, asyncs [i]);
3700#endif 4466#endif
3701 4467
4468#if EV_PREPARE_ENABLE
3702 if (types & EV_PREPARE) 4469 if (types & EV_PREPARE)
3703 for (i = preparecnt; i--; ) 4470 for (i = preparecnt; i--; )
3704#if EV_EMBED_ENABLE 4471# if EV_EMBED_ENABLE
3705 if (ev_cb (prepares [i]) != embed_prepare_cb) 4472 if (ev_cb (prepares [i]) != embed_prepare_cb)
3706#endif 4473# endif
3707 cb (EV_A_ EV_PREPARE, prepares [i]); 4474 cb (EV_A_ EV_PREPARE, prepares [i]);
4475#endif
3708 4476
4477#if EV_CHECK_ENABLE
3709 if (types & EV_CHECK) 4478 if (types & EV_CHECK)
3710 for (i = checkcnt; i--; ) 4479 for (i = checkcnt; i--; )
3711 cb (EV_A_ EV_CHECK, checks [i]); 4480 cb (EV_A_ EV_CHECK, checks [i]);
4481#endif
3712 4482
4483#if EV_SIGNAL_ENABLE
3713 if (types & EV_SIGNAL) 4484 if (types & EV_SIGNAL)
3714 for (i = 0; i < EV_NSIG - 1; ++i) 4485 for (i = 0; i < EV_NSIG - 1; ++i)
3715 for (wl = signals [i].head; wl; ) 4486 for (wl = signals [i].head; wl; )
3716 { 4487 {
3717 wn = wl->next; 4488 wn = wl->next;
3718 cb (EV_A_ EV_SIGNAL, wl); 4489 cb (EV_A_ EV_SIGNAL, wl);
3719 wl = wn; 4490 wl = wn;
3720 } 4491 }
4492#endif
3721 4493
4494#if EV_CHILD_ENABLE
3722 if (types & EV_CHILD) 4495 if (types & EV_CHILD)
3723 for (i = EV_PID_HASHSIZE; i--; ) 4496 for (i = (EV_PID_HASHSIZE); i--; )
3724 for (wl = childs [i]; wl; ) 4497 for (wl = childs [i]; wl; )
3725 { 4498 {
3726 wn = wl->next; 4499 wn = wl->next;
3727 cb (EV_A_ EV_CHILD, wl); 4500 cb (EV_A_ EV_CHILD, wl);
3728 wl = wn; 4501 wl = wn;
3729 } 4502 }
4503#endif
3730/* EV_STAT 0x00001000 /* stat data changed */ 4504/* EV_STAT 0x00001000 /* stat data changed */
3731/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4505/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3732} 4506}
3733#endif 4507#endif
3734 4508
3735#if EV_MULTIPLICITY 4509#if EV_MULTIPLICITY
3736 #include "ev_wrap.h" 4510 #include "ev_wrap.h"
3737#endif 4511#endif
3738 4512
3739#ifdef __cplusplus
3740}
3741#endif
3742

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