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Comparing libev/ev.c (file contents):
Revision 1.290 by root, Mon Jun 29 04:41:34 2009 UTC vs.
Revision 1.429 by root, Tue May 8 15:50:49 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138# ifndef EV_USE_EVENTFD 148# ifndef EV_USE_SIGNALFD
139# if HAVE_EVENTFD 149# define EV_USE_SIGNALFD EV_FEATURE_OS
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
154# endif
155
156# if HAVE_EVENTFD
157# ifndef EV_USE_EVENTFD
158# define EV_USE_EVENTFD EV_FEATURE_OS
159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
144# endif 163# endif
145 164
146#endif 165#endif
147 166
148#include <math.h>
149#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
150#include <fcntl.h> 169#include <fcntl.h>
151#include <stddef.h> 170#include <stddef.h>
152 171
153#include <stdio.h> 172#include <stdio.h>
154 173
155#include <assert.h> 174#include <assert.h>
156#include <errno.h> 175#include <errno.h>
157#include <sys/types.h> 176#include <sys/types.h>
158#include <time.h> 177#include <time.h>
178#include <limits.h>
159 179
160#include <signal.h> 180#include <signal.h>
161 181
162#ifdef EV_H 182#ifdef EV_H
163# include EV_H 183# include EV_H
164#else 184#else
165# 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
166#endif 197#endif
167 198
168#ifndef _WIN32 199#ifndef _WIN32
169# include <sys/time.h> 200# include <sys/time.h>
170# include <sys/wait.h> 201# include <sys/wait.h>
171# include <unistd.h> 202# include <unistd.h>
172#else 203#else
173# include <io.h> 204# include <io.h>
174# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 206# include <windows.h>
207# include <winsock2.h>
176# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
178# endif 210# endif
211# undef EV_AVOID_STDIO
179#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
180 221
181/* 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 */
223
224/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG
226/* use what's provided */
227#elif defined NSIG
228# define EV_NSIG (NSIG)
229#elif defined _NSIG
230# define EV_NSIG (_NSIG)
231#elif defined SIGMAX
232# define EV_NSIG (SIGMAX+1)
233#elif defined SIG_MAX
234# define EV_NSIG (SIG_MAX+1)
235#elif defined _SIG_MAX
236# define EV_NSIG (_SIG_MAX+1)
237#elif defined MAXSIG
238# define EV_NSIG (MAXSIG+1)
239#elif defined MAX_SIG
240# define EV_NSIG (MAX_SIG+1)
241#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else
246# error "unable to find value for NSIG, please report"
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif
251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
254#endif
182 255
183#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 259# else
187# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
188# endif 261# endif
189#endif 262#endif
190 263
191#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 267# else
195# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
196# endif 269# endif
197#endif 270#endif
198 271
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 274#endif
202 275
203#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 279# else
207# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
208# endif 281# endif
209#endif 282#endif
210 283
211#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 286#endif
214 287
215#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
216# ifdef _WIN32 289# ifdef _WIN32
217# define EV_USE_POLL 0 290# define EV_USE_POLL 0
218# else 291# else
219# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 293# endif
221#endif 294#endif
222 295
223#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 299# else
227# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
228# endif 301# endif
229#endif 302#endif
230 303
… …
236# define EV_USE_PORT 0 309# define EV_USE_PORT 0
237#endif 310#endif
238 311
239#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 315# else
243# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
244# endif 317# endif
245#endif 318#endif
246 319
247#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249# define EV_PID_HASHSIZE 1
250# else
251# define EV_PID_HASHSIZE 16
252# endif
253#endif 322#endif
254 323
255#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_INOTIFY_HASHSIZE 1
258# else
259# define EV_INOTIFY_HASHSIZE 16
260# endif
261#endif 326#endif
262 327
263#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 331# else
267# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
333# endif
334#endif
335
336#ifndef EV_USE_SIGNALFD
337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
338# define EV_USE_SIGNALFD EV_FEATURE_OS
339# else
340# define EV_USE_SIGNALFD 0
268# endif 341# endif
269#endif 342#endif
270 343
271#if 0 /* debugging */ 344#if 0 /* debugging */
272# define EV_VERIFY 3 345# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
275#endif 348#endif
276 349
277#ifndef EV_VERIFY 350#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 352#endif
280 353
281#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 356#endif
284 357
285#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif
288
289/* this block fixes any misconfiguration where we know we run into trouble otherwise */
290
291#ifndef CLOCK_MONOTONIC
292# undef EV_USE_MONOTONIC
293# define EV_USE_MONOTONIC 0
294#endif
295
296#ifndef CLOCK_REALTIME
297# undef EV_USE_REALTIME
298# define EV_USE_REALTIME 0
299#endif
300
301#if !EV_STAT_ENABLE
302# undef EV_USE_INOTIFY
303# define EV_USE_INOTIFY 0
304#endif
305
306#if !EV_USE_NANOSLEEP
307# ifndef _WIN32
308# include <sys/select.h>
309# endif
310#endif
311
312#if EV_USE_INOTIFY
313# include <sys/utsname.h>
314# include <sys/statfs.h>
315# include <sys/inotify.h>
316/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
317# ifndef IN_DONT_FOLLOW
318# undef EV_USE_INOTIFY
319# define EV_USE_INOTIFY 0
320# endif
321#endif
322
323#if EV_SELECT_IS_WINSOCKET
324# include <winsock.h>
325#endif 360#endif
326 361
327/* 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, */
328/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
329#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
330# include <syscall.h> 365# include <sys/syscall.h>
331# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
332# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
333# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
334# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
335# else 370# else
336# undef EV_USE_CLOCK_SYSCALL 371# undef EV_USE_CLOCK_SYSCALL
337# define EV_USE_CLOCK_SYSCALL 0 372# define EV_USE_CLOCK_SYSCALL 0
338# endif 373# endif
339#endif 374#endif
340 375
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
384#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0
387#endif
388
389#ifndef CLOCK_REALTIME
390# undef EV_USE_REALTIME
391# define EV_USE_REALTIME 0
392#endif
393
394#if !EV_STAT_ENABLE
395# undef EV_USE_INOTIFY
396# define EV_USE_INOTIFY 0
397#endif
398
399#if !EV_USE_NANOSLEEP
400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
402# include <sys/select.h>
403# endif
404#endif
405
406#if EV_USE_INOTIFY
407# include <sys/statfs.h>
408# include <sys/inotify.h>
409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
410# ifndef IN_DONT_FOLLOW
411# undef EV_USE_INOTIFY
412# define EV_USE_INOTIFY 0
413# endif
414#endif
415
416#if EV_SELECT_IS_WINSOCKET
417# include <winsock.h>
418#endif
419
341#if EV_USE_EVENTFD 420#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 421/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 422# include <stdint.h>
344# ifdef __cplusplus 423# ifndef EFD_NONBLOCK
345extern "C" { 424# define EFD_NONBLOCK O_NONBLOCK
346# endif 425# endif
347int eventfd (unsigned int initval, int flags); 426# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 427# ifdef O_CLOEXEC
349} 428# define EFD_CLOEXEC O_CLOEXEC
429# else
430# define EFD_CLOEXEC 02000000
431# endif
350# endif 432# endif
433EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
434#endif
435
436#if EV_USE_SIGNALFD
437/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
438# include <stdint.h>
439# ifndef SFD_NONBLOCK
440# define SFD_NONBLOCK O_NONBLOCK
441# endif
442# ifndef SFD_CLOEXEC
443# ifdef O_CLOEXEC
444# define SFD_CLOEXEC O_CLOEXEC
445# else
446# define SFD_CLOEXEC 02000000
447# endif
448# endif
449EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
450
451struct signalfd_siginfo
452{
453 uint32_t ssi_signo;
454 char pad[128 - sizeof (uint32_t)];
455};
351#endif 456#endif
352 457
353/**/ 458/**/
354 459
355#if EV_VERIFY >= 3 460#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 461# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 462#else
358# define EV_FREQUENT_CHECK do { } while (0) 463# define EV_FREQUENT_CHECK do { } while (0)
359#endif 464#endif
360 465
361/* 466/*
362 * This is used to avoid floating point rounding problems. 467 * This is used to work around floating point rounding problems.
363 * It is added to ev_rt_now when scheduling periodics
364 * to ensure progress, time-wise, even when rounding
365 * errors are against us.
366 * This value is good at least till the year 4000. 468 * This value is good at least till the year 4000.
367 * Better solutions welcome.
368 */ 469 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 470#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
471/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
370 472
371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 473#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
372#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 474#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
373/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
374 475
476#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
477#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
478
479/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
480/* ECB.H BEGIN */
481/*
482 * libecb - http://software.schmorp.de/pkg/libecb
483 *
484 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
485 * Copyright (©) 2011 Emanuele Giaquinta
486 * All rights reserved.
487 *
488 * Redistribution and use in source and binary forms, with or without modifica-
489 * tion, are permitted provided that the following conditions are met:
490 *
491 * 1. Redistributions of source code must retain the above copyright notice,
492 * this list of conditions and the following disclaimer.
493 *
494 * 2. Redistributions in binary form must reproduce the above copyright
495 * notice, this list of conditions and the following disclaimer in the
496 * documentation and/or other materials provided with the distribution.
497 *
498 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
499 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
500 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
501 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
502 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
503 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
504 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
505 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
506 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
507 * OF THE POSSIBILITY OF SUCH DAMAGE.
508 */
509
510#ifndef ECB_H
511#define ECB_H
512
513#ifdef _WIN32
514 typedef signed char int8_t;
515 typedef unsigned char uint8_t;
516 typedef signed short int16_t;
517 typedef unsigned short uint16_t;
518 typedef signed int int32_t;
519 typedef unsigned int uint32_t;
375#if __GNUC__ >= 4 520 #if __GNUC__
376# define expect(expr,value) __builtin_expect ((expr),(value)) 521 typedef signed long long int64_t;
377# define noinline __attribute__ ((noinline)) 522 typedef unsigned long long uint64_t;
523 #else /* _MSC_VER || __BORLANDC__ */
524 typedef signed __int64 int64_t;
525 typedef unsigned __int64 uint64_t;
526 #endif
378#else 527#else
379# define expect(expr,value) (expr) 528 #include <inttypes.h>
380# define noinline
381# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
382# define inline
383# endif 529#endif
530
531/* many compilers define _GNUC_ to some versions but then only implement
532 * what their idiot authors think are the "more important" extensions,
533 * causing enormous grief in return for some better fake benchmark numbers.
534 * or so.
535 * we try to detect these and simply assume they are not gcc - if they have
536 * an issue with that they should have done it right in the first place.
537 */
538#ifndef ECB_GCC_VERSION
539 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
540 #define ECB_GCC_VERSION(major,minor) 0
541 #else
542 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
384#endif 543 #endif
544#endif
385 545
546/*****************************************************************************/
547
548/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
549/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
550
551#if ECB_NO_THREADS
552# define ECB_NO_SMP 1
553#endif
554
555#if ECB_NO_THREADS || ECB_NO_SMP
556 #define ECB_MEMORY_FENCE do { } while (0)
557#endif
558
559#ifndef ECB_MEMORY_FENCE
560 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
561 #if __i386 || __i386__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
564 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
565 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
568 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
569 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
570 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
571 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
572 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
573 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
574 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
575 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
576 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
577 #elif __sparc || __sparc__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
579 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
580 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
581 #elif defined __s390__ || defined __s390x__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
583 #elif defined __mips__
584 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
585 #elif defined __alpha__
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
587 #endif
588 #endif
589#endif
590
591#ifndef ECB_MEMORY_FENCE
592 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
593 #define ECB_MEMORY_FENCE __sync_synchronize ()
594 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
595 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
596 #elif _MSC_VER >= 1400 /* VC++ 2005 */
597 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
598 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
599 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
600 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
601 #elif defined _WIN32
602 #include <WinNT.h>
603 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
604 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
605 #include <mbarrier.h>
606 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
607 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
608 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
609 #elif __xlC__
610 #define ECB_MEMORY_FENCE __sync ()
611 #endif
612#endif
613
614#ifndef ECB_MEMORY_FENCE
615 #if !ECB_AVOID_PTHREADS
616 /*
617 * if you get undefined symbol references to pthread_mutex_lock,
618 * or failure to find pthread.h, then you should implement
619 * the ECB_MEMORY_FENCE operations for your cpu/compiler
620 * OR provide pthread.h and link against the posix thread library
621 * of your system.
622 */
623 #include <pthread.h>
624 #define ECB_NEEDS_PTHREADS 1
625 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
626
627 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
628 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
629 #endif
630#endif
631
632#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
633 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
634#endif
635
636#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
637 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
638#endif
639
640/*****************************************************************************/
641
642#define ECB_C99 (__STDC_VERSION__ >= 199901L)
643
644#if __cplusplus
645 #define ecb_inline static inline
646#elif ECB_GCC_VERSION(2,5)
647 #define ecb_inline static __inline__
648#elif ECB_C99
649 #define ecb_inline static inline
650#else
651 #define ecb_inline static
652#endif
653
654#if ECB_GCC_VERSION(3,3)
655 #define ecb_restrict __restrict__
656#elif ECB_C99
657 #define ecb_restrict restrict
658#else
659 #define ecb_restrict
660#endif
661
662typedef int ecb_bool;
663
664#define ECB_CONCAT_(a, b) a ## b
665#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
666#define ECB_STRINGIFY_(a) # a
667#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
668
669#define ecb_function_ ecb_inline
670
671#if ECB_GCC_VERSION(3,1)
672 #define ecb_attribute(attrlist) __attribute__(attrlist)
673 #define ecb_is_constant(expr) __builtin_constant_p (expr)
674 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
675 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
676#else
677 #define ecb_attribute(attrlist)
678 #define ecb_is_constant(expr) 0
679 #define ecb_expect(expr,value) (expr)
680 #define ecb_prefetch(addr,rw,locality)
681#endif
682
683/* no emulation for ecb_decltype */
684#if ECB_GCC_VERSION(4,5)
685 #define ecb_decltype(x) __decltype(x)
686#elif ECB_GCC_VERSION(3,0)
687 #define ecb_decltype(x) __typeof(x)
688#endif
689
690#define ecb_noinline ecb_attribute ((__noinline__))
691#define ecb_noreturn ecb_attribute ((__noreturn__))
692#define ecb_unused ecb_attribute ((__unused__))
693#define ecb_const ecb_attribute ((__const__))
694#define ecb_pure ecb_attribute ((__pure__))
695
696#if ECB_GCC_VERSION(4,3)
697 #define ecb_artificial ecb_attribute ((__artificial__))
698 #define ecb_hot ecb_attribute ((__hot__))
699 #define ecb_cold ecb_attribute ((__cold__))
700#else
701 #define ecb_artificial
702 #define ecb_hot
703 #define ecb_cold
704#endif
705
706/* put around conditional expressions if you are very sure that the */
707/* expression is mostly true or mostly false. note that these return */
708/* booleans, not the expression. */
386#define expect_false(expr) expect ((expr) != 0, 0) 709#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 710#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
711/* for compatibility to the rest of the world */
712#define ecb_likely(expr) ecb_expect_true (expr)
713#define ecb_unlikely(expr) ecb_expect_false (expr)
714
715/* count trailing zero bits and count # of one bits */
716#if ECB_GCC_VERSION(3,4)
717 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
718 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
719 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
720 #define ecb_ctz32(x) __builtin_ctz (x)
721 #define ecb_ctz64(x) __builtin_ctzll (x)
722 #define ecb_popcount32(x) __builtin_popcount (x)
723 /* no popcountll */
724#else
725 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
726 ecb_function_ int
727 ecb_ctz32 (uint32_t x)
728 {
729 int r = 0;
730
731 x &= ~x + 1; /* this isolates the lowest bit */
732
733#if ECB_branchless_on_i386
734 r += !!(x & 0xaaaaaaaa) << 0;
735 r += !!(x & 0xcccccccc) << 1;
736 r += !!(x & 0xf0f0f0f0) << 2;
737 r += !!(x & 0xff00ff00) << 3;
738 r += !!(x & 0xffff0000) << 4;
739#else
740 if (x & 0xaaaaaaaa) r += 1;
741 if (x & 0xcccccccc) r += 2;
742 if (x & 0xf0f0f0f0) r += 4;
743 if (x & 0xff00ff00) r += 8;
744 if (x & 0xffff0000) r += 16;
745#endif
746
747 return r;
748 }
749
750 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
751 ecb_function_ int
752 ecb_ctz64 (uint64_t x)
753 {
754 int shift = x & 0xffffffffU ? 0 : 32;
755 return ecb_ctz32 (x >> shift) + shift;
756 }
757
758 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
759 ecb_function_ int
760 ecb_popcount32 (uint32_t x)
761 {
762 x -= (x >> 1) & 0x55555555;
763 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
764 x = ((x >> 4) + x) & 0x0f0f0f0f;
765 x *= 0x01010101;
766
767 return x >> 24;
768 }
769
770 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
771 ecb_function_ int ecb_ld32 (uint32_t x)
772 {
773 int r = 0;
774
775 if (x >> 16) { x >>= 16; r += 16; }
776 if (x >> 8) { x >>= 8; r += 8; }
777 if (x >> 4) { x >>= 4; r += 4; }
778 if (x >> 2) { x >>= 2; r += 2; }
779 if (x >> 1) { r += 1; }
780
781 return r;
782 }
783
784 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
785 ecb_function_ int ecb_ld64 (uint64_t x)
786 {
787 int r = 0;
788
789 if (x >> 32) { x >>= 32; r += 32; }
790
791 return r + ecb_ld32 (x);
792 }
793#endif
794
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
796ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
797{
798 return ( (x * 0x0802U & 0x22110U)
799 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
800}
801
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
803ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
804{
805 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
806 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
807 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
808 x = ( x >> 8 ) | ( x << 8);
809
810 return x;
811}
812
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
814ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
815{
816 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
817 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
818 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
819 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
820 x = ( x >> 16 ) | ( x << 16);
821
822 return x;
823}
824
825/* popcount64 is only available on 64 bit cpus as gcc builtin */
826/* so for this version we are lazy */
827ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
828ecb_function_ int
829ecb_popcount64 (uint64_t x)
830{
831 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
832}
833
834ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
841ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
842
843ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
844ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
845ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
846ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
847ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
848ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
849ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
850ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
851
852#if ECB_GCC_VERSION(4,3)
853 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
854 #define ecb_bswap32(x) __builtin_bswap32 (x)
855 #define ecb_bswap64(x) __builtin_bswap64 (x)
856#else
857 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
858 ecb_function_ uint16_t
859 ecb_bswap16 (uint16_t x)
860 {
861 return ecb_rotl16 (x, 8);
862 }
863
864 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
865 ecb_function_ uint32_t
866 ecb_bswap32 (uint32_t x)
867 {
868 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
869 }
870
871 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
872 ecb_function_ uint64_t
873 ecb_bswap64 (uint64_t x)
874 {
875 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
876 }
877#endif
878
879#if ECB_GCC_VERSION(4,5)
880 #define ecb_unreachable() __builtin_unreachable ()
881#else
882 /* this seems to work fine, but gcc always emits a warning for it :/ */
883 ecb_inline void ecb_unreachable (void) ecb_noreturn;
884 ecb_inline void ecb_unreachable (void) { }
885#endif
886
887/* try to tell the compiler that some condition is definitely true */
888#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
889
890ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
891ecb_inline unsigned char
892ecb_byteorder_helper (void)
893{
894 const uint32_t u = 0x11223344;
895 return *(unsigned char *)&u;
896}
897
898ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
899ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
900ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
901ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
902
903#if ECB_GCC_VERSION(3,0) || ECB_C99
904 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
905#else
906 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
907#endif
908
909#if __cplusplus
910 template<typename T>
911 static inline T ecb_div_rd (T val, T div)
912 {
913 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
914 }
915 template<typename T>
916 static inline T ecb_div_ru (T val, T div)
917 {
918 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
919 }
920#else
921 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
922 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
923#endif
924
925#if ecb_cplusplus_does_not_suck
926 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
927 template<typename T, int N>
928 static inline int ecb_array_length (const T (&arr)[N])
929 {
930 return N;
931 }
932#else
933 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
934#endif
935
936#endif
937
938/* ECB.H END */
939
940#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
941/* if your architecture doesn't need memory fences, e.g. because it is
942 * single-cpu/core, or if you use libev in a project that doesn't use libev
943 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
944 * libev, in which cases the memory fences become nops.
945 * alternatively, you can remove this #error and link against libpthread,
946 * which will then provide the memory fences.
947 */
948# error "memory fences not defined for your architecture, please report"
949#endif
950
951#ifndef ECB_MEMORY_FENCE
952# define ECB_MEMORY_FENCE do { } while (0)
953# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
954# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
955#endif
956
957#define expect_false(cond) ecb_expect_false (cond)
958#define expect_true(cond) ecb_expect_true (cond)
959#define noinline ecb_noinline
960
388#define inline_size static inline 961#define inline_size ecb_inline
389 962
390#if EV_MINIMAL 963#if EV_FEATURE_CODE
964# define inline_speed ecb_inline
965#else
391# define inline_speed static noinline 966# define inline_speed static noinline
967#endif
968
969#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
970
971#if EV_MINPRI == EV_MAXPRI
972# define ABSPRI(w) (((W)w), 0)
392#else 973#else
393# define inline_speed static inline
394#endif
395
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 974# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
975#endif
398 976
399#define EMPTY /* required for microsofts broken pseudo-c compiler */ 977#define EMPTY /* required for microsofts broken pseudo-c compiler */
400#define EMPTY2(a,b) /* used to suppress some warnings */ 978#define EMPTY2(a,b) /* used to suppress some warnings */
401 979
402typedef ev_watcher *W; 980typedef ev_watcher *W;
… …
406#define ev_active(w) ((W)(w))->active 984#define ev_active(w) ((W)(w))->active
407#define ev_at(w) ((WT)(w))->at 985#define ev_at(w) ((WT)(w))->at
408 986
409#if EV_USE_REALTIME 987#if EV_USE_REALTIME
410/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 988/* sig_atomic_t is used to avoid per-thread variables or locking but still */
411/* giving it a reasonably high chance of working on typical architetcures */ 989/* giving it a reasonably high chance of working on typical architectures */
412static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 990static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
413#endif 991#endif
414 992
415#if EV_USE_MONOTONIC 993#if EV_USE_MONOTONIC
416static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 994static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
417#endif 995#endif
418 996
997#ifndef EV_FD_TO_WIN32_HANDLE
998# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
999#endif
1000#ifndef EV_WIN32_HANDLE_TO_FD
1001# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
1002#endif
1003#ifndef EV_WIN32_CLOSE_FD
1004# define EV_WIN32_CLOSE_FD(fd) close (fd)
1005#endif
1006
419#ifdef _WIN32 1007#ifdef _WIN32
420# include "ev_win32.c" 1008# include "ev_win32.c"
421#endif 1009#endif
422 1010
423/*****************************************************************************/ 1011/*****************************************************************************/
424 1012
1013/* define a suitable floor function (only used by periodics atm) */
1014
1015#if EV_USE_FLOOR
1016# include <math.h>
1017# define ev_floor(v) floor (v)
1018#else
1019
1020#include <float.h>
1021
1022/* a floor() replacement function, should be independent of ev_tstamp type */
1023static ev_tstamp noinline
1024ev_floor (ev_tstamp v)
1025{
1026 /* the choice of shift factor is not terribly important */
1027#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1028 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1029#else
1030 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1031#endif
1032
1033 /* argument too large for an unsigned long? */
1034 if (expect_false (v >= shift))
1035 {
1036 ev_tstamp f;
1037
1038 if (v == v - 1.)
1039 return v; /* very large number */
1040
1041 f = shift * ev_floor (v * (1. / shift));
1042 return f + ev_floor (v - f);
1043 }
1044
1045 /* special treatment for negative args? */
1046 if (expect_false (v < 0.))
1047 {
1048 ev_tstamp f = -ev_floor (-v);
1049
1050 return f - (f == v ? 0 : 1);
1051 }
1052
1053 /* fits into an unsigned long */
1054 return (unsigned long)v;
1055}
1056
1057#endif
1058
1059/*****************************************************************************/
1060
1061#ifdef __linux
1062# include <sys/utsname.h>
1063#endif
1064
1065static unsigned int noinline ecb_cold
1066ev_linux_version (void)
1067{
1068#ifdef __linux
1069 unsigned int v = 0;
1070 struct utsname buf;
1071 int i;
1072 char *p = buf.release;
1073
1074 if (uname (&buf))
1075 return 0;
1076
1077 for (i = 3+1; --i; )
1078 {
1079 unsigned int c = 0;
1080
1081 for (;;)
1082 {
1083 if (*p >= '0' && *p <= '9')
1084 c = c * 10 + *p++ - '0';
1085 else
1086 {
1087 p += *p == '.';
1088 break;
1089 }
1090 }
1091
1092 v = (v << 8) | c;
1093 }
1094
1095 return v;
1096#else
1097 return 0;
1098#endif
1099}
1100
1101/*****************************************************************************/
1102
1103#if EV_AVOID_STDIO
1104static void noinline ecb_cold
1105ev_printerr (const char *msg)
1106{
1107 write (STDERR_FILENO, msg, strlen (msg));
1108}
1109#endif
1110
425static void (*syserr_cb)(const char *msg); 1111static void (*syserr_cb)(const char *msg) EV_THROW;
426 1112
427void 1113void ecb_cold
428ev_set_syserr_cb (void (*cb)(const char *msg)) 1114ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
429{ 1115{
430 syserr_cb = cb; 1116 syserr_cb = cb;
431} 1117}
432 1118
433static void noinline 1119static void noinline ecb_cold
434ev_syserr (const char *msg) 1120ev_syserr (const char *msg)
435{ 1121{
436 if (!msg) 1122 if (!msg)
437 msg = "(libev) system error"; 1123 msg = "(libev) system error";
438 1124
439 if (syserr_cb) 1125 if (syserr_cb)
440 syserr_cb (msg); 1126 syserr_cb (msg);
441 else 1127 else
442 { 1128 {
1129#if EV_AVOID_STDIO
1130 ev_printerr (msg);
1131 ev_printerr (": ");
1132 ev_printerr (strerror (errno));
1133 ev_printerr ("\n");
1134#else
443 perror (msg); 1135 perror (msg);
1136#endif
444 abort (); 1137 abort ();
445 } 1138 }
446} 1139}
447 1140
448static void * 1141static void *
449ev_realloc_emul (void *ptr, long size) 1142ev_realloc_emul (void *ptr, long size)
450{ 1143{
1144#if __GLIBC__
1145 return realloc (ptr, size);
1146#else
451 /* some systems, notably openbsd and darwin, fail to properly 1147 /* some systems, notably openbsd and darwin, fail to properly
452 * implement realloc (x, 0) (as required by both ansi c-98 and 1148 * implement realloc (x, 0) (as required by both ansi c-89 and
453 * the single unix specification, so work around them here. 1149 * the single unix specification, so work around them here.
454 */ 1150 */
455 1151
456 if (size) 1152 if (size)
457 return realloc (ptr, size); 1153 return realloc (ptr, size);
458 1154
459 free (ptr); 1155 free (ptr);
460 return 0; 1156 return 0;
1157#endif
461} 1158}
462 1159
463static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1160static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
464 1161
465void 1162void ecb_cold
466ev_set_allocator (void *(*cb)(void *ptr, long size)) 1163ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
467{ 1164{
468 alloc = cb; 1165 alloc = cb;
469} 1166}
470 1167
471inline_speed void * 1168inline_speed void *
… …
473{ 1170{
474 ptr = alloc (ptr, size); 1171 ptr = alloc (ptr, size);
475 1172
476 if (!ptr && size) 1173 if (!ptr && size)
477 { 1174 {
1175#if EV_AVOID_STDIO
1176 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1177#else
478 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1178 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1179#endif
479 abort (); 1180 abort ();
480 } 1181 }
481 1182
482 return ptr; 1183 return ptr;
483} 1184}
… …
485#define ev_malloc(size) ev_realloc (0, (size)) 1186#define ev_malloc(size) ev_realloc (0, (size))
486#define ev_free(ptr) ev_realloc ((ptr), 0) 1187#define ev_free(ptr) ev_realloc ((ptr), 0)
487 1188
488/*****************************************************************************/ 1189/*****************************************************************************/
489 1190
1191/* set in reify when reification needed */
1192#define EV_ANFD_REIFY 1
1193
490/* file descriptor info structure */ 1194/* file descriptor info structure */
491typedef struct 1195typedef struct
492{ 1196{
493 WL head; 1197 WL head;
494 unsigned char events; /* the events watched for */ 1198 unsigned char events; /* the events watched for */
495 unsigned char reify; /* flag set when this ANFD needs reification */ 1199 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
496 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1200 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
497 unsigned char unused; 1201 unsigned char unused;
498#if EV_USE_EPOLL 1202#if EV_USE_EPOLL
499 unsigned int egen; /* generation counter to counter epoll bugs */ 1203 unsigned int egen; /* generation counter to counter epoll bugs */
500#endif 1204#endif
501#if EV_SELECT_IS_WINSOCKET 1205#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
502 SOCKET handle; 1206 SOCKET handle;
1207#endif
1208#if EV_USE_IOCP
1209 OVERLAPPED or, ow;
503#endif 1210#endif
504} ANFD; 1211} ANFD;
505 1212
506/* stores the pending event set for a given watcher */ 1213/* stores the pending event set for a given watcher */
507typedef struct 1214typedef struct
… …
549 #undef VAR 1256 #undef VAR
550 }; 1257 };
551 #include "ev_wrap.h" 1258 #include "ev_wrap.h"
552 1259
553 static struct ev_loop default_loop_struct; 1260 static struct ev_loop default_loop_struct;
554 struct ev_loop *ev_default_loop_ptr; 1261 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
555 1262
556#else 1263#else
557 1264
558 ev_tstamp ev_rt_now; 1265 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
559 #define VAR(name,decl) static decl; 1266 #define VAR(name,decl) static decl;
560 #include "ev_vars.h" 1267 #include "ev_vars.h"
561 #undef VAR 1268 #undef VAR
562 1269
563 static int ev_default_loop_ptr; 1270 static int ev_default_loop_ptr;
564 1271
565#endif 1272#endif
566 1273
1274#if EV_FEATURE_API
1275# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
1276# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
1277# define EV_INVOKE_PENDING invoke_cb (EV_A)
1278#else
1279# define EV_RELEASE_CB (void)0
1280# define EV_ACQUIRE_CB (void)0
1281# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
1282#endif
1283
1284#define EVBREAK_RECURSE 0x80
1285
567/*****************************************************************************/ 1286/*****************************************************************************/
568 1287
1288#ifndef EV_HAVE_EV_TIME
569ev_tstamp 1289ev_tstamp
570ev_time (void) 1290ev_time (void) EV_THROW
571{ 1291{
572#if EV_USE_REALTIME 1292#if EV_USE_REALTIME
573 if (expect_true (have_realtime)) 1293 if (expect_true (have_realtime))
574 { 1294 {
575 struct timespec ts; 1295 struct timespec ts;
… …
580 1300
581 struct timeval tv; 1301 struct timeval tv;
582 gettimeofday (&tv, 0); 1302 gettimeofday (&tv, 0);
583 return tv.tv_sec + tv.tv_usec * 1e-6; 1303 return tv.tv_sec + tv.tv_usec * 1e-6;
584} 1304}
1305#endif
585 1306
586inline_size ev_tstamp 1307inline_size ev_tstamp
587get_clock (void) 1308get_clock (void)
588{ 1309{
589#if EV_USE_MONOTONIC 1310#if EV_USE_MONOTONIC
… …
598 return ev_time (); 1319 return ev_time ();
599} 1320}
600 1321
601#if EV_MULTIPLICITY 1322#if EV_MULTIPLICITY
602ev_tstamp 1323ev_tstamp
603ev_now (EV_P) 1324ev_now (EV_P) EV_THROW
604{ 1325{
605 return ev_rt_now; 1326 return ev_rt_now;
606} 1327}
607#endif 1328#endif
608 1329
609void 1330void
610ev_sleep (ev_tstamp delay) 1331ev_sleep (ev_tstamp delay) EV_THROW
611{ 1332{
612 if (delay > 0.) 1333 if (delay > 0.)
613 { 1334 {
614#if EV_USE_NANOSLEEP 1335#if EV_USE_NANOSLEEP
615 struct timespec ts; 1336 struct timespec ts;
616 1337
617 ts.tv_sec = (time_t)delay; 1338 EV_TS_SET (ts, delay);
618 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
619
620 nanosleep (&ts, 0); 1339 nanosleep (&ts, 0);
621#elif defined(_WIN32) 1340#elif defined _WIN32
622 Sleep ((unsigned long)(delay * 1e3)); 1341 Sleep ((unsigned long)(delay * 1e3));
623#else 1342#else
624 struct timeval tv; 1343 struct timeval tv;
625 1344
626 tv.tv_sec = (time_t)delay;
627 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
628
629 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1345 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
630 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 1346 /* something not guaranteed by newer posix versions, but guaranteed */
631 /* by older ones */ 1347 /* by older ones */
1348 EV_TV_SET (tv, delay);
632 select (0, 0, 0, 0, &tv); 1349 select (0, 0, 0, 0, &tv);
633#endif 1350#endif
634 } 1351 }
635} 1352}
636 1353
637/*****************************************************************************/ 1354/*****************************************************************************/
638 1355
639#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1356#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
640 1357
641/* find a suitable new size for the given array, */ 1358/* find a suitable new size for the given array, */
642/* hopefully by rounding to a ncie-to-malloc size */ 1359/* hopefully by rounding to a nice-to-malloc size */
643inline_size int 1360inline_size int
644array_nextsize (int elem, int cur, int cnt) 1361array_nextsize (int elem, int cur, int cnt)
645{ 1362{
646 int ncur = cur + 1; 1363 int ncur = cur + 1;
647 1364
648 do 1365 do
649 ncur <<= 1; 1366 ncur <<= 1;
650 while (cnt > ncur); 1367 while (cnt > ncur);
651 1368
652 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1369 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
653 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1370 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
654 { 1371 {
655 ncur *= elem; 1372 ncur *= elem;
656 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1373 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
657 ncur = ncur - sizeof (void *) * 4; 1374 ncur = ncur - sizeof (void *) * 4;
… …
659 } 1376 }
660 1377
661 return ncur; 1378 return ncur;
662} 1379}
663 1380
664static noinline void * 1381static void * noinline ecb_cold
665array_realloc (int elem, void *base, int *cur, int cnt) 1382array_realloc (int elem, void *base, int *cur, int cnt)
666{ 1383{
667 *cur = array_nextsize (elem, *cur, cnt); 1384 *cur = array_nextsize (elem, *cur, cnt);
668 return ev_realloc (base, elem * *cur); 1385 return ev_realloc (base, elem * *cur);
669} 1386}
… …
672 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1389 memset ((void *)(base), 0, sizeof (*(base)) * (count))
673 1390
674#define array_needsize(type,base,cur,cnt,init) \ 1391#define array_needsize(type,base,cur,cnt,init) \
675 if (expect_false ((cnt) > (cur))) \ 1392 if (expect_false ((cnt) > (cur))) \
676 { \ 1393 { \
677 int ocur_ = (cur); \ 1394 int ecb_unused ocur_ = (cur); \
678 (base) = (type *)array_realloc \ 1395 (base) = (type *)array_realloc \
679 (sizeof (type), (base), &(cur), (cnt)); \ 1396 (sizeof (type), (base), &(cur), (cnt)); \
680 init ((base) + (ocur_), (cur) - ocur_); \ 1397 init ((base) + (ocur_), (cur) - ocur_); \
681 } 1398 }
682 1399
… …
700pendingcb (EV_P_ ev_prepare *w, int revents) 1417pendingcb (EV_P_ ev_prepare *w, int revents)
701{ 1418{
702} 1419}
703 1420
704void noinline 1421void noinline
705ev_feed_event (EV_P_ void *w, int revents) 1422ev_feed_event (EV_P_ void *w, int revents) EV_THROW
706{ 1423{
707 W w_ = (W)w; 1424 W w_ = (W)w;
708 int pri = ABSPRI (w_); 1425 int pri = ABSPRI (w_);
709 1426
710 if (expect_false (w_->pending)) 1427 if (expect_false (w_->pending))
… …
714 w_->pending = ++pendingcnt [pri]; 1431 w_->pending = ++pendingcnt [pri];
715 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1432 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
716 pendings [pri][w_->pending - 1].w = w_; 1433 pendings [pri][w_->pending - 1].w = w_;
717 pendings [pri][w_->pending - 1].events = revents; 1434 pendings [pri][w_->pending - 1].events = revents;
718 } 1435 }
1436
1437 pendingpri = NUMPRI - 1;
719} 1438}
720 1439
721inline_speed void 1440inline_speed void
722feed_reverse (EV_P_ W w) 1441feed_reverse (EV_P_ W w)
723{ 1442{
… …
743} 1462}
744 1463
745/*****************************************************************************/ 1464/*****************************************************************************/
746 1465
747inline_speed void 1466inline_speed void
748fd_event (EV_P_ int fd, int revents) 1467fd_event_nocheck (EV_P_ int fd, int revents)
749{ 1468{
750 ANFD *anfd = anfds + fd; 1469 ANFD *anfd = anfds + fd;
751 ev_io *w; 1470 ev_io *w;
752 1471
753 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1472 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
757 if (ev) 1476 if (ev)
758 ev_feed_event (EV_A_ (W)w, ev); 1477 ev_feed_event (EV_A_ (W)w, ev);
759 } 1478 }
760} 1479}
761 1480
1481/* do not submit kernel events for fds that have reify set */
1482/* because that means they changed while we were polling for new events */
1483inline_speed void
1484fd_event (EV_P_ int fd, int revents)
1485{
1486 ANFD *anfd = anfds + fd;
1487
1488 if (expect_true (!anfd->reify))
1489 fd_event_nocheck (EV_A_ fd, revents);
1490}
1491
762void 1492void
763ev_feed_fd_event (EV_P_ int fd, int revents) 1493ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
764{ 1494{
765 if (fd >= 0 && fd < anfdmax) 1495 if (fd >= 0 && fd < anfdmax)
766 fd_event (EV_A_ fd, revents); 1496 fd_event_nocheck (EV_A_ fd, revents);
767} 1497}
768 1498
769/* make sure the external fd watch events are in-sync */ 1499/* make sure the external fd watch events are in-sync */
770/* with the kernel/libev internal state */ 1500/* with the kernel/libev internal state */
771inline_size void 1501inline_size void
772fd_reify (EV_P) 1502fd_reify (EV_P)
773{ 1503{
774 int i; 1504 int i;
775 1505
1506#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1507 for (i = 0; i < fdchangecnt; ++i)
1508 {
1509 int fd = fdchanges [i];
1510 ANFD *anfd = anfds + fd;
1511
1512 if (anfd->reify & EV__IOFDSET && anfd->head)
1513 {
1514 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1515
1516 if (handle != anfd->handle)
1517 {
1518 unsigned long arg;
1519
1520 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1521
1522 /* handle changed, but fd didn't - we need to do it in two steps */
1523 backend_modify (EV_A_ fd, anfd->events, 0);
1524 anfd->events = 0;
1525 anfd->handle = handle;
1526 }
1527 }
1528 }
1529#endif
1530
776 for (i = 0; i < fdchangecnt; ++i) 1531 for (i = 0; i < fdchangecnt; ++i)
777 { 1532 {
778 int fd = fdchanges [i]; 1533 int fd = fdchanges [i];
779 ANFD *anfd = anfds + fd; 1534 ANFD *anfd = anfds + fd;
780 ev_io *w; 1535 ev_io *w;
781 1536
782 unsigned char events = 0; 1537 unsigned char o_events = anfd->events;
1538 unsigned char o_reify = anfd->reify;
783 1539
784 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1540 anfd->reify = 0;
785 events |= (unsigned char)w->events;
786 1541
787#if EV_SELECT_IS_WINSOCKET 1542 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
788 if (events)
789 { 1543 {
790 unsigned long arg; 1544 anfd->events = 0;
791 #ifdef EV_FD_TO_WIN32_HANDLE 1545
792 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1546 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
793 #else 1547 anfd->events |= (unsigned char)w->events;
794 anfd->handle = _get_osfhandle (fd); 1548
795 #endif 1549 if (o_events != anfd->events)
796 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1550 o_reify = EV__IOFDSET; /* actually |= */
797 } 1551 }
798#endif
799 1552
800 { 1553 if (o_reify & EV__IOFDSET)
801 unsigned char o_events = anfd->events;
802 unsigned char o_reify = anfd->reify;
803
804 anfd->reify = 0;
805 anfd->events = events;
806
807 if (o_events != events || o_reify & EV__IOFDSET)
808 backend_modify (EV_A_ fd, o_events, events); 1554 backend_modify (EV_A_ fd, o_events, anfd->events);
809 }
810 } 1555 }
811 1556
812 fdchangecnt = 0; 1557 fdchangecnt = 0;
813} 1558}
814 1559
… …
826 fdchanges [fdchangecnt - 1] = fd; 1571 fdchanges [fdchangecnt - 1] = fd;
827 } 1572 }
828} 1573}
829 1574
830/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1575/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
831inline_speed void 1576inline_speed void ecb_cold
832fd_kill (EV_P_ int fd) 1577fd_kill (EV_P_ int fd)
833{ 1578{
834 ev_io *w; 1579 ev_io *w;
835 1580
836 while ((w = (ev_io *)anfds [fd].head)) 1581 while ((w = (ev_io *)anfds [fd].head))
… …
838 ev_io_stop (EV_A_ w); 1583 ev_io_stop (EV_A_ w);
839 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1584 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
840 } 1585 }
841} 1586}
842 1587
843/* check whether the given fd is atcually valid, for error recovery */ 1588/* check whether the given fd is actually valid, for error recovery */
844inline_size int 1589inline_size int ecb_cold
845fd_valid (int fd) 1590fd_valid (int fd)
846{ 1591{
847#ifdef _WIN32 1592#ifdef _WIN32
848 return _get_osfhandle (fd) != -1; 1593 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
849#else 1594#else
850 return fcntl (fd, F_GETFD) != -1; 1595 return fcntl (fd, F_GETFD) != -1;
851#endif 1596#endif
852} 1597}
853 1598
854/* called on EBADF to verify fds */ 1599/* called on EBADF to verify fds */
855static void noinline 1600static void noinline ecb_cold
856fd_ebadf (EV_P) 1601fd_ebadf (EV_P)
857{ 1602{
858 int fd; 1603 int fd;
859 1604
860 for (fd = 0; fd < anfdmax; ++fd) 1605 for (fd = 0; fd < anfdmax; ++fd)
… …
862 if (!fd_valid (fd) && errno == EBADF) 1607 if (!fd_valid (fd) && errno == EBADF)
863 fd_kill (EV_A_ fd); 1608 fd_kill (EV_A_ fd);
864} 1609}
865 1610
866/* called on ENOMEM in select/poll to kill some fds and retry */ 1611/* called on ENOMEM in select/poll to kill some fds and retry */
867static void noinline 1612static void noinline ecb_cold
868fd_enomem (EV_P) 1613fd_enomem (EV_P)
869{ 1614{
870 int fd; 1615 int fd;
871 1616
872 for (fd = anfdmax; fd--; ) 1617 for (fd = anfdmax; fd--; )
873 if (anfds [fd].events) 1618 if (anfds [fd].events)
874 { 1619 {
875 fd_kill (EV_A_ fd); 1620 fd_kill (EV_A_ fd);
876 return; 1621 break;
877 } 1622 }
878} 1623}
879 1624
880/* usually called after fork if backend needs to re-arm all fds from scratch */ 1625/* usually called after fork if backend needs to re-arm all fds from scratch */
881static void noinline 1626static void noinline
… …
886 for (fd = 0; fd < anfdmax; ++fd) 1631 for (fd = 0; fd < anfdmax; ++fd)
887 if (anfds [fd].events) 1632 if (anfds [fd].events)
888 { 1633 {
889 anfds [fd].events = 0; 1634 anfds [fd].events = 0;
890 anfds [fd].emask = 0; 1635 anfds [fd].emask = 0;
891 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1636 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
892 } 1637 }
893} 1638}
894 1639
1640/* used to prepare libev internal fd's */
1641/* this is not fork-safe */
1642inline_speed void
1643fd_intern (int fd)
1644{
1645#ifdef _WIN32
1646 unsigned long arg = 1;
1647 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1648#else
1649 fcntl (fd, F_SETFD, FD_CLOEXEC);
1650 fcntl (fd, F_SETFL, O_NONBLOCK);
1651#endif
1652}
1653
895/*****************************************************************************/ 1654/*****************************************************************************/
896 1655
897/* 1656/*
898 * the heap functions want a real array index. array index 0 uis guaranteed to not 1657 * the heap functions want a real array index. array index 0 is guaranteed to not
899 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1658 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
900 * the branching factor of the d-tree. 1659 * the branching factor of the d-tree.
901 */ 1660 */
902 1661
903/* 1662/*
… …
971 1730
972 for (;;) 1731 for (;;)
973 { 1732 {
974 int c = k << 1; 1733 int c = k << 1;
975 1734
976 if (c > N + HEAP0 - 1) 1735 if (c >= N + HEAP0)
977 break; 1736 break;
978 1737
979 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1738 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
980 ? 1 : 0; 1739 ? 1 : 0;
981 1740
… …
1017 1776
1018/* move an element suitably so it is in a correct place */ 1777/* move an element suitably so it is in a correct place */
1019inline_size void 1778inline_size void
1020adjustheap (ANHE *heap, int N, int k) 1779adjustheap (ANHE *heap, int N, int k)
1021{ 1780{
1022 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1781 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1023 upheap (heap, k); 1782 upheap (heap, k);
1024 else 1783 else
1025 downheap (heap, N, k); 1784 downheap (heap, N, k);
1026} 1785}
1027 1786
… …
1040/*****************************************************************************/ 1799/*****************************************************************************/
1041 1800
1042/* associate signal watchers to a signal signal */ 1801/* associate signal watchers to a signal signal */
1043typedef struct 1802typedef struct
1044{ 1803{
1804 EV_ATOMIC_T pending;
1805#if EV_MULTIPLICITY
1806 EV_P;
1807#endif
1045 WL head; 1808 WL head;
1046 EV_ATOMIC_T gotsig;
1047} ANSIG; 1809} ANSIG;
1048 1810
1049static ANSIG *signals; 1811static ANSIG signals [EV_NSIG - 1];
1050static int signalmax;
1051
1052static EV_ATOMIC_T gotsig;
1053 1812
1054/*****************************************************************************/ 1813/*****************************************************************************/
1055 1814
1056/* used to prepare libev internal fd's */ 1815#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1057/* this is not fork-safe */
1058inline_speed void
1059fd_intern (int fd)
1060{
1061#ifdef _WIN32
1062 unsigned long arg = 1;
1063 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1064#else
1065 fcntl (fd, F_SETFD, FD_CLOEXEC);
1066 fcntl (fd, F_SETFL, O_NONBLOCK);
1067#endif
1068}
1069 1816
1070static void noinline 1817static void noinline ecb_cold
1071evpipe_init (EV_P) 1818evpipe_init (EV_P)
1072{ 1819{
1073 if (!ev_is_active (&pipe_w)) 1820 if (!ev_is_active (&pipe_w))
1074 { 1821 {
1075#if EV_USE_EVENTFD 1822# if EV_USE_EVENTFD
1823 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1824 if (evfd < 0 && errno == EINVAL)
1076 if ((evfd = eventfd (0, 0)) >= 0) 1825 evfd = eventfd (0, 0);
1826
1827 if (evfd >= 0)
1077 { 1828 {
1078 evpipe [0] = -1; 1829 evpipe [0] = -1;
1079 fd_intern (evfd); 1830 fd_intern (evfd); /* doing it twice doesn't hurt */
1080 ev_io_set (&pipe_w, evfd, EV_READ); 1831 ev_io_set (&pipe_w, evfd, EV_READ);
1081 } 1832 }
1082 else 1833 else
1083#endif 1834# endif
1084 { 1835 {
1085 while (pipe (evpipe)) 1836 while (pipe (evpipe))
1086 ev_syserr ("(libev) error creating signal/async pipe"); 1837 ev_syserr ("(libev) error creating signal/async pipe");
1087 1838
1088 fd_intern (evpipe [0]); 1839 fd_intern (evpipe [0]);
… …
1093 ev_io_start (EV_A_ &pipe_w); 1844 ev_io_start (EV_A_ &pipe_w);
1094 ev_unref (EV_A); /* watcher should not keep loop alive */ 1845 ev_unref (EV_A); /* watcher should not keep loop alive */
1095 } 1846 }
1096} 1847}
1097 1848
1098inline_size void 1849inline_speed void
1099evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1850evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1100{ 1851{
1101 if (!*flag) 1852 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1853
1854 if (expect_true (*flag))
1855 return;
1856
1857 *flag = 1;
1858
1859 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1860
1861 pipe_write_skipped = 1;
1862
1863 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1864
1865 if (pipe_write_wanted)
1102 { 1866 {
1867 int old_errno;
1868
1869 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1870
1103 int old_errno = errno; /* save errno because write might clobber it */ 1871 old_errno = errno; /* save errno because write will clobber it */
1104
1105 *flag = 1;
1106 1872
1107#if EV_USE_EVENTFD 1873#if EV_USE_EVENTFD
1108 if (evfd >= 0) 1874 if (evfd >= 0)
1109 { 1875 {
1110 uint64_t counter = 1; 1876 uint64_t counter = 1;
1111 write (evfd, &counter, sizeof (uint64_t)); 1877 write (evfd, &counter, sizeof (uint64_t));
1112 } 1878 }
1113 else 1879 else
1114#endif 1880#endif
1881 {
1882#ifdef _WIN32
1883 WSABUF buf;
1884 DWORD sent;
1885 buf.buf = &buf;
1886 buf.len = 1;
1887 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1888#else
1115 write (evpipe [1], &old_errno, 1); 1889 write (evpipe [1], &(evpipe [1]), 1);
1890#endif
1891 }
1116 1892
1117 errno = old_errno; 1893 errno = old_errno;
1118 } 1894 }
1119} 1895}
1120 1896
1121/* called whenever the libev signal pipe */ 1897/* called whenever the libev signal pipe */
1122/* got some events (signal, async) */ 1898/* got some events (signal, async) */
1123static void 1899static void
1124pipecb (EV_P_ ev_io *iow, int revents) 1900pipecb (EV_P_ ev_io *iow, int revents)
1125{ 1901{
1902 int i;
1903
1904 if (revents & EV_READ)
1905 {
1126#if EV_USE_EVENTFD 1906#if EV_USE_EVENTFD
1127 if (evfd >= 0) 1907 if (evfd >= 0)
1128 { 1908 {
1129 uint64_t counter; 1909 uint64_t counter;
1130 read (evfd, &counter, sizeof (uint64_t)); 1910 read (evfd, &counter, sizeof (uint64_t));
1131 } 1911 }
1132 else 1912 else
1133#endif 1913#endif
1134 { 1914 {
1135 char dummy; 1915 char dummy[4];
1916#ifdef _WIN32
1917 WSABUF buf;
1918 DWORD recvd;
1919 buf.buf = dummy;
1920 buf.len = sizeof (dummy);
1921 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0);
1922#else
1136 read (evpipe [0], &dummy, 1); 1923 read (evpipe [0], &dummy, sizeof (dummy));
1924#endif
1925 }
1926 }
1927
1928 pipe_write_skipped = 0;
1929
1930 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1931
1932#if EV_SIGNAL_ENABLE
1933 if (sig_pending)
1137 } 1934 {
1935 sig_pending = 0;
1138 1936
1139 if (gotsig && ev_is_default_loop (EV_A)) 1937 ECB_MEMORY_FENCE_RELEASE;
1140 {
1141 int signum;
1142 gotsig = 0;
1143 1938
1144 for (signum = signalmax; signum--; ) 1939 for (i = EV_NSIG - 1; i--; )
1145 if (signals [signum].gotsig) 1940 if (expect_false (signals [i].pending))
1146 ev_feed_signal_event (EV_A_ signum + 1); 1941 ev_feed_signal_event (EV_A_ i + 1);
1147 } 1942 }
1943#endif
1148 1944
1149#if EV_ASYNC_ENABLE 1945#if EV_ASYNC_ENABLE
1150 if (gotasync) 1946 if (async_pending)
1151 { 1947 {
1152 int i; 1948 async_pending = 0;
1153 gotasync = 0; 1949
1950 ECB_MEMORY_FENCE_RELEASE;
1154 1951
1155 for (i = asynccnt; i--; ) 1952 for (i = asynccnt; i--; )
1156 if (asyncs [i]->sent) 1953 if (asyncs [i]->sent)
1157 { 1954 {
1158 asyncs [i]->sent = 0; 1955 asyncs [i]->sent = 0;
… …
1162#endif 1959#endif
1163} 1960}
1164 1961
1165/*****************************************************************************/ 1962/*****************************************************************************/
1166 1963
1964void
1965ev_feed_signal (int signum) EV_THROW
1966{
1967#if EV_MULTIPLICITY
1968 EV_P = signals [signum - 1].loop;
1969
1970 if (!EV_A)
1971 return;
1972#endif
1973
1974 if (!ev_active (&pipe_w))
1975 return;
1976
1977 signals [signum - 1].pending = 1;
1978 evpipe_write (EV_A_ &sig_pending);
1979}
1980
1167static void 1981static void
1168ev_sighandler (int signum) 1982ev_sighandler (int signum)
1169{ 1983{
1984#ifdef _WIN32
1985 signal (signum, ev_sighandler);
1986#endif
1987
1988 ev_feed_signal (signum);
1989}
1990
1991void noinline
1992ev_feed_signal_event (EV_P_ int signum) EV_THROW
1993{
1994 WL w;
1995
1996 if (expect_false (signum <= 0 || signum > EV_NSIG))
1997 return;
1998
1999 --signum;
2000
1170#if EV_MULTIPLICITY 2001#if EV_MULTIPLICITY
1171 struct ev_loop *loop = &default_loop_struct; 2002 /* it is permissible to try to feed a signal to the wrong loop */
1172#endif 2003 /* or, likely more useful, feeding a signal nobody is waiting for */
1173 2004
1174#if _WIN32 2005 if (expect_false (signals [signum].loop != EV_A))
1175 signal (signum, ev_sighandler);
1176#endif
1177
1178 signals [signum - 1].gotsig = 1;
1179 evpipe_write (EV_A_ &gotsig);
1180}
1181
1182void noinline
1183ev_feed_signal_event (EV_P_ int signum)
1184{
1185 WL w;
1186
1187#if EV_MULTIPLICITY
1188 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1189#endif
1190
1191 --signum;
1192
1193 if (signum < 0 || signum >= signalmax)
1194 return; 2006 return;
2007#endif
1195 2008
1196 signals [signum].gotsig = 0; 2009 signals [signum].pending = 0;
1197 2010
1198 for (w = signals [signum].head; w; w = w->next) 2011 for (w = signals [signum].head; w; w = w->next)
1199 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2012 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1200} 2013}
1201 2014
2015#if EV_USE_SIGNALFD
2016static void
2017sigfdcb (EV_P_ ev_io *iow, int revents)
2018{
2019 struct signalfd_siginfo si[2], *sip; /* these structs are big */
2020
2021 for (;;)
2022 {
2023 ssize_t res = read (sigfd, si, sizeof (si));
2024
2025 /* not ISO-C, as res might be -1, but works with SuS */
2026 for (sip = si; (char *)sip < (char *)si + res; ++sip)
2027 ev_feed_signal_event (EV_A_ sip->ssi_signo);
2028
2029 if (res < (ssize_t)sizeof (si))
2030 break;
2031 }
2032}
2033#endif
2034
2035#endif
2036
1202/*****************************************************************************/ 2037/*****************************************************************************/
1203 2038
2039#if EV_CHILD_ENABLE
1204static WL childs [EV_PID_HASHSIZE]; 2040static WL childs [EV_PID_HASHSIZE];
1205
1206#ifndef _WIN32
1207 2041
1208static ev_signal childev; 2042static ev_signal childev;
1209 2043
1210#ifndef WIFCONTINUED 2044#ifndef WIFCONTINUED
1211# define WIFCONTINUED(status) 0 2045# define WIFCONTINUED(status) 0
… …
1216child_reap (EV_P_ int chain, int pid, int status) 2050child_reap (EV_P_ int chain, int pid, int status)
1217{ 2051{
1218 ev_child *w; 2052 ev_child *w;
1219 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2053 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1220 2054
1221 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2055 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1222 { 2056 {
1223 if ((w->pid == pid || !w->pid) 2057 if ((w->pid == pid || !w->pid)
1224 && (!traced || (w->flags & 1))) 2058 && (!traced || (w->flags & 1)))
1225 { 2059 {
1226 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2060 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1251 /* make sure we are called again until all children have been reaped */ 2085 /* make sure we are called again until all children have been reaped */
1252 /* we need to do it this way so that the callback gets called before we continue */ 2086 /* we need to do it this way so that the callback gets called before we continue */
1253 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2087 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1254 2088
1255 child_reap (EV_A_ pid, pid, status); 2089 child_reap (EV_A_ pid, pid, status);
1256 if (EV_PID_HASHSIZE > 1) 2090 if ((EV_PID_HASHSIZE) > 1)
1257 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2091 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1258} 2092}
1259 2093
1260#endif 2094#endif
1261 2095
1262/*****************************************************************************/ 2096/*****************************************************************************/
1263 2097
2098#if EV_USE_IOCP
2099# include "ev_iocp.c"
2100#endif
1264#if EV_USE_PORT 2101#if EV_USE_PORT
1265# include "ev_port.c" 2102# include "ev_port.c"
1266#endif 2103#endif
1267#if EV_USE_KQUEUE 2104#if EV_USE_KQUEUE
1268# include "ev_kqueue.c" 2105# include "ev_kqueue.c"
… …
1275#endif 2112#endif
1276#if EV_USE_SELECT 2113#if EV_USE_SELECT
1277# include "ev_select.c" 2114# include "ev_select.c"
1278#endif 2115#endif
1279 2116
1280int 2117int ecb_cold
1281ev_version_major (void) 2118ev_version_major (void) EV_THROW
1282{ 2119{
1283 return EV_VERSION_MAJOR; 2120 return EV_VERSION_MAJOR;
1284} 2121}
1285 2122
1286int 2123int ecb_cold
1287ev_version_minor (void) 2124ev_version_minor (void) EV_THROW
1288{ 2125{
1289 return EV_VERSION_MINOR; 2126 return EV_VERSION_MINOR;
1290} 2127}
1291 2128
1292/* return true if we are running with elevated privileges and should ignore env variables */ 2129/* return true if we are running with elevated privileges and should ignore env variables */
1293int inline_size 2130int inline_size ecb_cold
1294enable_secure (void) 2131enable_secure (void)
1295{ 2132{
1296#ifdef _WIN32 2133#ifdef _WIN32
1297 return 0; 2134 return 0;
1298#else 2135#else
1299 return getuid () != geteuid () 2136 return getuid () != geteuid ()
1300 || getgid () != getegid (); 2137 || getgid () != getegid ();
1301#endif 2138#endif
1302} 2139}
1303 2140
1304unsigned int 2141unsigned int ecb_cold
1305ev_supported_backends (void) 2142ev_supported_backends (void) EV_THROW
1306{ 2143{
1307 unsigned int flags = 0; 2144 unsigned int flags = 0;
1308 2145
1309 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2146 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1310 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2147 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1313 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2150 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1314 2151
1315 return flags; 2152 return flags;
1316} 2153}
1317 2154
1318unsigned int 2155unsigned int ecb_cold
1319ev_recommended_backends (void) 2156ev_recommended_backends (void) EV_THROW
1320{ 2157{
1321 unsigned int flags = ev_supported_backends (); 2158 unsigned int flags = ev_supported_backends ();
1322 2159
1323#ifndef __NetBSD__ 2160#ifndef __NetBSD__
1324 /* kqueue is borked on everything but netbsd apparently */ 2161 /* kqueue is borked on everything but netbsd apparently */
… …
1328#ifdef __APPLE__ 2165#ifdef __APPLE__
1329 /* only select works correctly on that "unix-certified" platform */ 2166 /* only select works correctly on that "unix-certified" platform */
1330 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2167 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1331 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2168 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1332#endif 2169#endif
2170#ifdef __FreeBSD__
2171 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2172#endif
1333 2173
1334 return flags; 2174 return flags;
1335} 2175}
1336 2176
2177unsigned int ecb_cold
2178ev_embeddable_backends (void) EV_THROW
2179{
2180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2181
2182 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2183 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2184 flags &= ~EVBACKEND_EPOLL;
2185
2186 return flags;
2187}
2188
1337unsigned int 2189unsigned int
1338ev_embeddable_backends (void) 2190ev_backend (EV_P) EV_THROW
1339{ 2191{
1340 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2192 return backend;
1341
1342 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1343 /* please fix it and tell me how to detect the fix */
1344 flags &= ~EVBACKEND_EPOLL;
1345
1346 return flags;
1347} 2193}
1348 2194
2195#if EV_FEATURE_API
1349unsigned int 2196unsigned int
1350ev_backend (EV_P) 2197ev_iteration (EV_P) EV_THROW
1351{ 2198{
1352 return backend; 2199 return loop_count;
1353} 2200}
1354 2201
1355unsigned int 2202unsigned int
1356ev_loop_count (EV_P) 2203ev_depth (EV_P) EV_THROW
1357{ 2204{
1358 return loop_count; 2205 return loop_depth;
1359} 2206}
1360 2207
1361void 2208void
1362ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2209ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1363{ 2210{
1364 io_blocktime = interval; 2211 io_blocktime = interval;
1365} 2212}
1366 2213
1367void 2214void
1368ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2215ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1369{ 2216{
1370 timeout_blocktime = interval; 2217 timeout_blocktime = interval;
1371} 2218}
1372 2219
2220void
2221ev_set_userdata (EV_P_ void *data) EV_THROW
2222{
2223 userdata = data;
2224}
2225
2226void *
2227ev_userdata (EV_P) EV_THROW
2228{
2229 return userdata;
2230}
2231
2232void
2233ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2234{
2235 invoke_cb = invoke_pending_cb;
2236}
2237
2238void
2239ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2240{
2241 release_cb = release;
2242 acquire_cb = acquire;
2243}
2244#endif
2245
1373/* initialise a loop structure, must be zero-initialised */ 2246/* initialise a loop structure, must be zero-initialised */
1374static void noinline 2247static void noinline ecb_cold
1375loop_init (EV_P_ unsigned int flags) 2248loop_init (EV_P_ unsigned int flags) EV_THROW
1376{ 2249{
1377 if (!backend) 2250 if (!backend)
1378 { 2251 {
2252 origflags = flags;
2253
1379#if EV_USE_REALTIME 2254#if EV_USE_REALTIME
1380 if (!have_realtime) 2255 if (!have_realtime)
1381 { 2256 {
1382 struct timespec ts; 2257 struct timespec ts;
1383 2258
… …
1394 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2269 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1395 have_monotonic = 1; 2270 have_monotonic = 1;
1396 } 2271 }
1397#endif 2272#endif
1398 2273
1399 ev_rt_now = ev_time ();
1400 mn_now = get_clock ();
1401 now_floor = mn_now;
1402 rtmn_diff = ev_rt_now - mn_now;
1403
1404 io_blocktime = 0.;
1405 timeout_blocktime = 0.;
1406 backend = 0;
1407 backend_fd = -1;
1408 gotasync = 0;
1409#if EV_USE_INOTIFY
1410 fs_fd = -2;
1411#endif
1412
1413 /* pid check not overridable via env */ 2274 /* pid check not overridable via env */
1414#ifndef _WIN32 2275#ifndef _WIN32
1415 if (flags & EVFLAG_FORKCHECK) 2276 if (flags & EVFLAG_FORKCHECK)
1416 curpid = getpid (); 2277 curpid = getpid ();
1417#endif 2278#endif
… …
1419 if (!(flags & EVFLAG_NOENV) 2280 if (!(flags & EVFLAG_NOENV)
1420 && !enable_secure () 2281 && !enable_secure ()
1421 && getenv ("LIBEV_FLAGS")) 2282 && getenv ("LIBEV_FLAGS"))
1422 flags = atoi (getenv ("LIBEV_FLAGS")); 2283 flags = atoi (getenv ("LIBEV_FLAGS"));
1423 2284
1424 if (!(flags & 0x0000ffffU)) 2285 ev_rt_now = ev_time ();
2286 mn_now = get_clock ();
2287 now_floor = mn_now;
2288 rtmn_diff = ev_rt_now - mn_now;
2289#if EV_FEATURE_API
2290 invoke_cb = ev_invoke_pending;
2291#endif
2292
2293 io_blocktime = 0.;
2294 timeout_blocktime = 0.;
2295 backend = 0;
2296 backend_fd = -1;
2297 sig_pending = 0;
2298#if EV_ASYNC_ENABLE
2299 async_pending = 0;
2300#endif
2301 pipe_write_skipped = 0;
2302 pipe_write_wanted = 0;
2303#if EV_USE_INOTIFY
2304 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2305#endif
2306#if EV_USE_SIGNALFD
2307 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2308#endif
2309
2310 if (!(flags & EVBACKEND_MASK))
1425 flags |= ev_recommended_backends (); 2311 flags |= ev_recommended_backends ();
1426 2312
2313#if EV_USE_IOCP
2314 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2315#endif
1427#if EV_USE_PORT 2316#if EV_USE_PORT
1428 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1429#endif 2318#endif
1430#if EV_USE_KQUEUE 2319#if EV_USE_KQUEUE
1431 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1440 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2329 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1441#endif 2330#endif
1442 2331
1443 ev_prepare_init (&pending_w, pendingcb); 2332 ev_prepare_init (&pending_w, pendingcb);
1444 2333
2334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1445 ev_init (&pipe_w, pipecb); 2335 ev_init (&pipe_w, pipecb);
1446 ev_set_priority (&pipe_w, EV_MAXPRI); 2336 ev_set_priority (&pipe_w, EV_MAXPRI);
2337#endif
1447 } 2338 }
1448} 2339}
1449 2340
1450/* free up a loop structure */ 2341/* free up a loop structure */
1451static void noinline 2342void ecb_cold
1452loop_destroy (EV_P) 2343ev_loop_destroy (EV_P)
1453{ 2344{
1454 int i; 2345 int i;
1455 2346
2347#if EV_MULTIPLICITY
2348 /* mimic free (0) */
2349 if (!EV_A)
2350 return;
2351#endif
2352
2353#if EV_CLEANUP_ENABLE
2354 /* queue cleanup watchers (and execute them) */
2355 if (expect_false (cleanupcnt))
2356 {
2357 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2358 EV_INVOKE_PENDING;
2359 }
2360#endif
2361
2362#if EV_CHILD_ENABLE
2363 if (ev_is_active (&childev))
2364 {
2365 ev_ref (EV_A); /* child watcher */
2366 ev_signal_stop (EV_A_ &childev);
2367 }
2368#endif
2369
1456 if (ev_is_active (&pipe_w)) 2370 if (ev_is_active (&pipe_w))
1457 { 2371 {
1458 ev_ref (EV_A); /* signal watcher */ 2372 /*ev_ref (EV_A);*/
1459 ev_io_stop (EV_A_ &pipe_w); 2373 /*ev_io_stop (EV_A_ &pipe_w);*/
1460 2374
1461#if EV_USE_EVENTFD 2375#if EV_USE_EVENTFD
1462 if (evfd >= 0) 2376 if (evfd >= 0)
1463 close (evfd); 2377 close (evfd);
1464#endif 2378#endif
1465 2379
1466 if (evpipe [0] >= 0) 2380 if (evpipe [0] >= 0)
1467 { 2381 {
1468 close (evpipe [0]); 2382 EV_WIN32_CLOSE_FD (evpipe [0]);
1469 close (evpipe [1]); 2383 EV_WIN32_CLOSE_FD (evpipe [1]);
1470 } 2384 }
1471 } 2385 }
2386
2387#if EV_USE_SIGNALFD
2388 if (ev_is_active (&sigfd_w))
2389 close (sigfd);
2390#endif
1472 2391
1473#if EV_USE_INOTIFY 2392#if EV_USE_INOTIFY
1474 if (fs_fd >= 0) 2393 if (fs_fd >= 0)
1475 close (fs_fd); 2394 close (fs_fd);
1476#endif 2395#endif
1477 2396
1478 if (backend_fd >= 0) 2397 if (backend_fd >= 0)
1479 close (backend_fd); 2398 close (backend_fd);
1480 2399
2400#if EV_USE_IOCP
2401 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2402#endif
1481#if EV_USE_PORT 2403#if EV_USE_PORT
1482 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2404 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1483#endif 2405#endif
1484#if EV_USE_KQUEUE 2406#if EV_USE_KQUEUE
1485 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2407 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1500#if EV_IDLE_ENABLE 2422#if EV_IDLE_ENABLE
1501 array_free (idle, [i]); 2423 array_free (idle, [i]);
1502#endif 2424#endif
1503 } 2425 }
1504 2426
1505 ev_free (anfds); anfdmax = 0; 2427 ev_free (anfds); anfds = 0; anfdmax = 0;
1506 2428
1507 /* have to use the microsoft-never-gets-it-right macro */ 2429 /* have to use the microsoft-never-gets-it-right macro */
1508 array_free (rfeed, EMPTY); 2430 array_free (rfeed, EMPTY);
1509 array_free (fdchange, EMPTY); 2431 array_free (fdchange, EMPTY);
1510 array_free (timer, EMPTY); 2432 array_free (timer, EMPTY);
… …
1512 array_free (periodic, EMPTY); 2434 array_free (periodic, EMPTY);
1513#endif 2435#endif
1514#if EV_FORK_ENABLE 2436#if EV_FORK_ENABLE
1515 array_free (fork, EMPTY); 2437 array_free (fork, EMPTY);
1516#endif 2438#endif
2439#if EV_CLEANUP_ENABLE
2440 array_free (cleanup, EMPTY);
2441#endif
1517 array_free (prepare, EMPTY); 2442 array_free (prepare, EMPTY);
1518 array_free (check, EMPTY); 2443 array_free (check, EMPTY);
1519#if EV_ASYNC_ENABLE 2444#if EV_ASYNC_ENABLE
1520 array_free (async, EMPTY); 2445 array_free (async, EMPTY);
1521#endif 2446#endif
1522 2447
1523 backend = 0; 2448 backend = 0;
2449
2450#if EV_MULTIPLICITY
2451 if (ev_is_default_loop (EV_A))
2452#endif
2453 ev_default_loop_ptr = 0;
2454#if EV_MULTIPLICITY
2455 else
2456 ev_free (EV_A);
2457#endif
1524} 2458}
1525 2459
1526#if EV_USE_INOTIFY 2460#if EV_USE_INOTIFY
1527inline_size void infy_fork (EV_P); 2461inline_size void infy_fork (EV_P);
1528#endif 2462#endif
… …
1543 infy_fork (EV_A); 2477 infy_fork (EV_A);
1544#endif 2478#endif
1545 2479
1546 if (ev_is_active (&pipe_w)) 2480 if (ev_is_active (&pipe_w))
1547 { 2481 {
1548 /* this "locks" the handlers against writing to the pipe */ 2482 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1549 /* while we modify the fd vars */
1550 gotsig = 1;
1551#if EV_ASYNC_ENABLE
1552 gotasync = 1;
1553#endif
1554 2483
1555 ev_ref (EV_A); 2484 ev_ref (EV_A);
1556 ev_io_stop (EV_A_ &pipe_w); 2485 ev_io_stop (EV_A_ &pipe_w);
1557 2486
1558#if EV_USE_EVENTFD 2487#if EV_USE_EVENTFD
… …
1560 close (evfd); 2489 close (evfd);
1561#endif 2490#endif
1562 2491
1563 if (evpipe [0] >= 0) 2492 if (evpipe [0] >= 0)
1564 { 2493 {
1565 close (evpipe [0]); 2494 EV_WIN32_CLOSE_FD (evpipe [0]);
1566 close (evpipe [1]); 2495 EV_WIN32_CLOSE_FD (evpipe [1]);
1567 } 2496 }
1568 2497
2498#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1569 evpipe_init (EV_A); 2499 evpipe_init (EV_A);
1570 /* now iterate over everything, in case we missed something */ 2500 /* now iterate over everything, in case we missed something */
1571 pipecb (EV_A_ &pipe_w, EV_READ); 2501 pipecb (EV_A_ &pipe_w, EV_READ);
2502#endif
1572 } 2503 }
1573 2504
1574 postfork = 0; 2505 postfork = 0;
1575} 2506}
1576 2507
1577#if EV_MULTIPLICITY 2508#if EV_MULTIPLICITY
1578 2509
1579struct ev_loop * 2510struct ev_loop * ecb_cold
1580ev_loop_new (unsigned int flags) 2511ev_loop_new (unsigned int flags) EV_THROW
1581{ 2512{
1582 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2513 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1583 2514
1584 memset (loop, 0, sizeof (struct ev_loop)); 2515 memset (EV_A, 0, sizeof (struct ev_loop));
1585
1586 loop_init (EV_A_ flags); 2516 loop_init (EV_A_ flags);
1587 2517
1588 if (ev_backend (EV_A)) 2518 if (ev_backend (EV_A))
1589 return loop; 2519 return EV_A;
1590 2520
2521 ev_free (EV_A);
1591 return 0; 2522 return 0;
1592} 2523}
1593 2524
1594void 2525#endif /* multiplicity */
1595ev_loop_destroy (EV_P)
1596{
1597 loop_destroy (EV_A);
1598 ev_free (loop);
1599}
1600
1601void
1602ev_loop_fork (EV_P)
1603{
1604 postfork = 1; /* must be in line with ev_default_fork */
1605}
1606 2526
1607#if EV_VERIFY 2527#if EV_VERIFY
1608static void noinline 2528static void noinline ecb_cold
1609verify_watcher (EV_P_ W w) 2529verify_watcher (EV_P_ W w)
1610{ 2530{
1611 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2531 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1612 2532
1613 if (w->pending) 2533 if (w->pending)
1614 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2534 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1615} 2535}
1616 2536
1617static void noinline 2537static void noinline ecb_cold
1618verify_heap (EV_P_ ANHE *heap, int N) 2538verify_heap (EV_P_ ANHE *heap, int N)
1619{ 2539{
1620 int i; 2540 int i;
1621 2541
1622 for (i = HEAP0; i < N + HEAP0; ++i) 2542 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1627 2547
1628 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2548 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1629 } 2549 }
1630} 2550}
1631 2551
1632static void noinline 2552static void noinline ecb_cold
1633array_verify (EV_P_ W *ws, int cnt) 2553array_verify (EV_P_ W *ws, int cnt)
1634{ 2554{
1635 while (cnt--) 2555 while (cnt--)
1636 { 2556 {
1637 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2557 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1638 verify_watcher (EV_A_ ws [cnt]); 2558 verify_watcher (EV_A_ ws [cnt]);
1639 } 2559 }
1640} 2560}
1641#endif 2561#endif
1642 2562
1643void 2563#if EV_FEATURE_API
1644ev_loop_verify (EV_P) 2564void ecb_cold
2565ev_verify (EV_P) EV_THROW
1645{ 2566{
1646#if EV_VERIFY 2567#if EV_VERIFY
1647 int i; 2568 int i;
1648 WL w; 2569 WL w, w2;
1649 2570
1650 assert (activecnt >= -1); 2571 assert (activecnt >= -1);
1651 2572
1652 assert (fdchangemax >= fdchangecnt); 2573 assert (fdchangemax >= fdchangecnt);
1653 for (i = 0; i < fdchangecnt; ++i) 2574 for (i = 0; i < fdchangecnt; ++i)
1654 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2575 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1655 2576
1656 assert (anfdmax >= 0); 2577 assert (anfdmax >= 0);
1657 for (i = 0; i < anfdmax; ++i) 2578 for (i = 0; i < anfdmax; ++i)
2579 {
2580 int j = 0;
2581
1658 for (w = anfds [i].head; w; w = w->next) 2582 for (w = w2 = anfds [i].head; w; w = w->next)
1659 { 2583 {
1660 verify_watcher (EV_A_ (W)w); 2584 verify_watcher (EV_A_ (W)w);
2585
2586 if (j++ & 1)
2587 {
2588 assert (("libev: io watcher list contains a loop", w != w2));
2589 w2 = w2->next;
2590 }
2591
1661 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2592 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1662 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2593 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1663 } 2594 }
2595 }
1664 2596
1665 assert (timermax >= timercnt); 2597 assert (timermax >= timercnt);
1666 verify_heap (EV_A_ timers, timercnt); 2598 verify_heap (EV_A_ timers, timercnt);
1667 2599
1668#if EV_PERIODIC_ENABLE 2600#if EV_PERIODIC_ENABLE
… …
1683#if EV_FORK_ENABLE 2615#if EV_FORK_ENABLE
1684 assert (forkmax >= forkcnt); 2616 assert (forkmax >= forkcnt);
1685 array_verify (EV_A_ (W *)forks, forkcnt); 2617 array_verify (EV_A_ (W *)forks, forkcnt);
1686#endif 2618#endif
1687 2619
2620#if EV_CLEANUP_ENABLE
2621 assert (cleanupmax >= cleanupcnt);
2622 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2623#endif
2624
1688#if EV_ASYNC_ENABLE 2625#if EV_ASYNC_ENABLE
1689 assert (asyncmax >= asynccnt); 2626 assert (asyncmax >= asynccnt);
1690 array_verify (EV_A_ (W *)asyncs, asynccnt); 2627 array_verify (EV_A_ (W *)asyncs, asynccnt);
1691#endif 2628#endif
1692 2629
2630#if EV_PREPARE_ENABLE
1693 assert (preparemax >= preparecnt); 2631 assert (preparemax >= preparecnt);
1694 array_verify (EV_A_ (W *)prepares, preparecnt); 2632 array_verify (EV_A_ (W *)prepares, preparecnt);
2633#endif
1695 2634
2635#if EV_CHECK_ENABLE
1696 assert (checkmax >= checkcnt); 2636 assert (checkmax >= checkcnt);
1697 array_verify (EV_A_ (W *)checks, checkcnt); 2637 array_verify (EV_A_ (W *)checks, checkcnt);
2638#endif
1698 2639
1699# if 0 2640# if 0
2641#if EV_CHILD_ENABLE
1700 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2642 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1701 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2643 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2644#endif
1702# endif 2645# endif
1703#endif 2646#endif
1704} 2647}
1705 2648#endif
1706#endif /* multiplicity */
1707 2649
1708#if EV_MULTIPLICITY 2650#if EV_MULTIPLICITY
1709struct ev_loop * 2651struct ev_loop * ecb_cold
1710ev_default_loop_init (unsigned int flags)
1711#else 2652#else
1712int 2653int
2654#endif
1713ev_default_loop (unsigned int flags) 2655ev_default_loop (unsigned int flags) EV_THROW
1714#endif
1715{ 2656{
1716 if (!ev_default_loop_ptr) 2657 if (!ev_default_loop_ptr)
1717 { 2658 {
1718#if EV_MULTIPLICITY 2659#if EV_MULTIPLICITY
1719 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2660 EV_P = ev_default_loop_ptr = &default_loop_struct;
1720#else 2661#else
1721 ev_default_loop_ptr = 1; 2662 ev_default_loop_ptr = 1;
1722#endif 2663#endif
1723 2664
1724 loop_init (EV_A_ flags); 2665 loop_init (EV_A_ flags);
1725 2666
1726 if (ev_backend (EV_A)) 2667 if (ev_backend (EV_A))
1727 { 2668 {
1728#ifndef _WIN32 2669#if EV_CHILD_ENABLE
1729 ev_signal_init (&childev, childcb, SIGCHLD); 2670 ev_signal_init (&childev, childcb, SIGCHLD);
1730 ev_set_priority (&childev, EV_MAXPRI); 2671 ev_set_priority (&childev, EV_MAXPRI);
1731 ev_signal_start (EV_A_ &childev); 2672 ev_signal_start (EV_A_ &childev);
1732 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2673 ev_unref (EV_A); /* child watcher should not keep loop alive */
1733#endif 2674#endif
… …
1738 2679
1739 return ev_default_loop_ptr; 2680 return ev_default_loop_ptr;
1740} 2681}
1741 2682
1742void 2683void
1743ev_default_destroy (void) 2684ev_loop_fork (EV_P) EV_THROW
1744{ 2685{
1745#if EV_MULTIPLICITY
1746 struct ev_loop *loop = ev_default_loop_ptr;
1747#endif
1748
1749 ev_default_loop_ptr = 0;
1750
1751#ifndef _WIN32
1752 ev_ref (EV_A); /* child watcher */
1753 ev_signal_stop (EV_A_ &childev);
1754#endif
1755
1756 loop_destroy (EV_A);
1757}
1758
1759void
1760ev_default_fork (void)
1761{
1762#if EV_MULTIPLICITY
1763 struct ev_loop *loop = ev_default_loop_ptr;
1764#endif
1765
1766 postfork = 1; /* must be in line with ev_loop_fork */ 2686 postfork = 1; /* must be in line with ev_default_fork */
1767} 2687}
1768 2688
1769/*****************************************************************************/ 2689/*****************************************************************************/
1770 2690
1771void 2691void
1772ev_invoke (EV_P_ void *w, int revents) 2692ev_invoke (EV_P_ void *w, int revents)
1773{ 2693{
1774 EV_CB_INVOKE ((W)w, revents); 2694 EV_CB_INVOKE ((W)w, revents);
1775} 2695}
1776 2696
1777inline_speed void 2697unsigned int
1778call_pending (EV_P) 2698ev_pending_count (EV_P) EV_THROW
1779{ 2699{
1780 int pri; 2700 int pri;
2701 unsigned int count = 0;
1781 2702
1782 for (pri = NUMPRI; pri--; ) 2703 for (pri = NUMPRI; pri--; )
2704 count += pendingcnt [pri];
2705
2706 return count;
2707}
2708
2709void noinline
2710ev_invoke_pending (EV_P)
2711{
2712 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1783 while (pendingcnt [pri]) 2713 while (pendingcnt [pendingpri])
1784 { 2714 {
1785 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2715 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1786
1787 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1788 /* ^ this is no longer true, as pending_w could be here */
1789 2716
1790 p->w->pending = 0; 2717 p->w->pending = 0;
1791 EV_CB_INVOKE (p->w, p->events); 2718 EV_CB_INVOKE (p->w, p->events);
1792 EV_FREQUENT_CHECK; 2719 EV_FREQUENT_CHECK;
1793 } 2720 }
… …
1850 EV_FREQUENT_CHECK; 2777 EV_FREQUENT_CHECK;
1851 feed_reverse (EV_A_ (W)w); 2778 feed_reverse (EV_A_ (W)w);
1852 } 2779 }
1853 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2780 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1854 2781
1855 feed_reverse_done (EV_A_ EV_TIMEOUT); 2782 feed_reverse_done (EV_A_ EV_TIMER);
1856 } 2783 }
1857} 2784}
1858 2785
1859#if EV_PERIODIC_ENABLE 2786#if EV_PERIODIC_ENABLE
2787
2788static void noinline
2789periodic_recalc (EV_P_ ev_periodic *w)
2790{
2791 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2792 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2793
2794 /* the above almost always errs on the low side */
2795 while (at <= ev_rt_now)
2796 {
2797 ev_tstamp nat = at + w->interval;
2798
2799 /* when resolution fails us, we use ev_rt_now */
2800 if (expect_false (nat == at))
2801 {
2802 at = ev_rt_now;
2803 break;
2804 }
2805
2806 at = nat;
2807 }
2808
2809 ev_at (w) = at;
2810}
2811
1860/* make periodics pending */ 2812/* make periodics pending */
1861inline_size void 2813inline_size void
1862periodics_reify (EV_P) 2814periodics_reify (EV_P)
1863{ 2815{
1864 EV_FREQUENT_CHECK; 2816 EV_FREQUENT_CHECK;
… …
1883 ANHE_at_cache (periodics [HEAP0]); 2835 ANHE_at_cache (periodics [HEAP0]);
1884 downheap (periodics, periodiccnt, HEAP0); 2836 downheap (periodics, periodiccnt, HEAP0);
1885 } 2837 }
1886 else if (w->interval) 2838 else if (w->interval)
1887 { 2839 {
1888 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2840 periodic_recalc (EV_A_ w);
1889 /* if next trigger time is not sufficiently in the future, put it there */
1890 /* this might happen because of floating point inexactness */
1891 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1892 {
1893 ev_at (w) += w->interval;
1894
1895 /* if interval is unreasonably low we might still have a time in the past */
1896 /* so correct this. this will make the periodic very inexact, but the user */
1897 /* has effectively asked to get triggered more often than possible */
1898 if (ev_at (w) < ev_rt_now)
1899 ev_at (w) = ev_rt_now;
1900 }
1901
1902 ANHE_at_cache (periodics [HEAP0]); 2841 ANHE_at_cache (periodics [HEAP0]);
1903 downheap (periodics, periodiccnt, HEAP0); 2842 downheap (periodics, periodiccnt, HEAP0);
1904 } 2843 }
1905 else 2844 else
1906 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2845 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1913 feed_reverse_done (EV_A_ EV_PERIODIC); 2852 feed_reverse_done (EV_A_ EV_PERIODIC);
1914 } 2853 }
1915} 2854}
1916 2855
1917/* simply recalculate all periodics */ 2856/* simply recalculate all periodics */
1918/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2857/* TODO: maybe ensure that at least one event happens when jumping forward? */
1919static void noinline 2858static void noinline ecb_cold
1920periodics_reschedule (EV_P) 2859periodics_reschedule (EV_P)
1921{ 2860{
1922 int i; 2861 int i;
1923 2862
1924 /* adjust periodics after time jump */ 2863 /* adjust periodics after time jump */
… …
1927 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2866 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1928 2867
1929 if (w->reschedule_cb) 2868 if (w->reschedule_cb)
1930 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2869 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1931 else if (w->interval) 2870 else if (w->interval)
1932 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2871 periodic_recalc (EV_A_ w);
1933 2872
1934 ANHE_at_cache (periodics [i]); 2873 ANHE_at_cache (periodics [i]);
1935 } 2874 }
1936 2875
1937 reheap (periodics, periodiccnt); 2876 reheap (periodics, periodiccnt);
1938} 2877}
1939#endif 2878#endif
1940 2879
1941/* adjust all timers by a given offset */ 2880/* adjust all timers by a given offset */
1942static void noinline 2881static void noinline ecb_cold
1943timers_reschedule (EV_P_ ev_tstamp adjust) 2882timers_reschedule (EV_P_ ev_tstamp adjust)
1944{ 2883{
1945 int i; 2884 int i;
1946 2885
1947 for (i = 0; i < timercnt; ++i) 2886 for (i = 0; i < timercnt; ++i)
… …
1951 ANHE_at_cache (*he); 2890 ANHE_at_cache (*he);
1952 } 2891 }
1953} 2892}
1954 2893
1955/* fetch new monotonic and realtime times from the kernel */ 2894/* fetch new monotonic and realtime times from the kernel */
1956/* also detetc if there was a timejump, and act accordingly */ 2895/* also detect if there was a timejump, and act accordingly */
1957inline_speed void 2896inline_speed void
1958time_update (EV_P_ ev_tstamp max_block) 2897time_update (EV_P_ ev_tstamp max_block)
1959{ 2898{
1960#if EV_USE_MONOTONIC 2899#if EV_USE_MONOTONIC
1961 if (expect_true (have_monotonic)) 2900 if (expect_true (have_monotonic))
… …
1984 * doesn't hurt either as we only do this on time-jumps or 2923 * doesn't hurt either as we only do this on time-jumps or
1985 * in the unlikely event of having been preempted here. 2924 * in the unlikely event of having been preempted here.
1986 */ 2925 */
1987 for (i = 4; --i; ) 2926 for (i = 4; --i; )
1988 { 2927 {
2928 ev_tstamp diff;
1989 rtmn_diff = ev_rt_now - mn_now; 2929 rtmn_diff = ev_rt_now - mn_now;
1990 2930
2931 diff = odiff - rtmn_diff;
2932
1991 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2933 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
1992 return; /* all is well */ 2934 return; /* all is well */
1993 2935
1994 ev_rt_now = ev_time (); 2936 ev_rt_now = ev_time ();
1995 mn_now = get_clock (); 2937 mn_now = get_clock ();
1996 now_floor = mn_now; 2938 now_floor = mn_now;
… …
2018 2960
2019 mn_now = ev_rt_now; 2961 mn_now = ev_rt_now;
2020 } 2962 }
2021} 2963}
2022 2964
2023static int loop_done; 2965int
2024
2025void
2026ev_loop (EV_P_ int flags) 2966ev_run (EV_P_ int flags)
2027{ 2967{
2968#if EV_FEATURE_API
2969 ++loop_depth;
2970#endif
2971
2972 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2973
2028 loop_done = EVUNLOOP_CANCEL; 2974 loop_done = EVBREAK_CANCEL;
2029 2975
2030 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2976 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2031 2977
2032 do 2978 do
2033 { 2979 {
2034#if EV_VERIFY >= 2 2980#if EV_VERIFY >= 2
2035 ev_loop_verify (EV_A); 2981 ev_verify (EV_A);
2036#endif 2982#endif
2037 2983
2038#ifndef _WIN32 2984#ifndef _WIN32
2039 if (expect_false (curpid)) /* penalise the forking check even more */ 2985 if (expect_false (curpid)) /* penalise the forking check even more */
2040 if (expect_false (getpid () != curpid)) 2986 if (expect_false (getpid () != curpid))
… …
2048 /* we might have forked, so queue fork handlers */ 2994 /* we might have forked, so queue fork handlers */
2049 if (expect_false (postfork)) 2995 if (expect_false (postfork))
2050 if (forkcnt) 2996 if (forkcnt)
2051 { 2997 {
2052 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2998 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2053 call_pending (EV_A); 2999 EV_INVOKE_PENDING;
2054 } 3000 }
2055#endif 3001#endif
2056 3002
3003#if EV_PREPARE_ENABLE
2057 /* queue prepare watchers (and execute them) */ 3004 /* queue prepare watchers (and execute them) */
2058 if (expect_false (preparecnt)) 3005 if (expect_false (preparecnt))
2059 { 3006 {
2060 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3007 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2061 call_pending (EV_A); 3008 EV_INVOKE_PENDING;
2062 } 3009 }
3010#endif
3011
3012 if (expect_false (loop_done))
3013 break;
2063 3014
2064 /* we might have forked, so reify kernel state if necessary */ 3015 /* we might have forked, so reify kernel state if necessary */
2065 if (expect_false (postfork)) 3016 if (expect_false (postfork))
2066 loop_fork (EV_A); 3017 loop_fork (EV_A);
2067 3018
… …
2071 /* calculate blocking time */ 3022 /* calculate blocking time */
2072 { 3023 {
2073 ev_tstamp waittime = 0.; 3024 ev_tstamp waittime = 0.;
2074 ev_tstamp sleeptime = 0.; 3025 ev_tstamp sleeptime = 0.;
2075 3026
3027 /* remember old timestamp for io_blocktime calculation */
3028 ev_tstamp prev_mn_now = mn_now;
3029
3030 /* update time to cancel out callback processing overhead */
3031 time_update (EV_A_ 1e100);
3032
3033 /* from now on, we want a pipe-wake-up */
3034 pipe_write_wanted = 1;
3035
3036 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3037
2076 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3038 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2077 { 3039 {
2078 /* update time to cancel out callback processing overhead */
2079 time_update (EV_A_ 1e100);
2080
2081 waittime = MAX_BLOCKTIME; 3040 waittime = MAX_BLOCKTIME;
2082 3041
2083 if (timercnt) 3042 if (timercnt)
2084 { 3043 {
2085 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3044 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2086 if (waittime > to) waittime = to; 3045 if (waittime > to) waittime = to;
2087 } 3046 }
2088 3047
2089#if EV_PERIODIC_ENABLE 3048#if EV_PERIODIC_ENABLE
2090 if (periodiccnt) 3049 if (periodiccnt)
2091 { 3050 {
2092 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3051 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2093 if (waittime > to) waittime = to; 3052 if (waittime > to) waittime = to;
2094 } 3053 }
2095#endif 3054#endif
2096 3055
3056 /* don't let timeouts decrease the waittime below timeout_blocktime */
2097 if (expect_false (waittime < timeout_blocktime)) 3057 if (expect_false (waittime < timeout_blocktime))
2098 waittime = timeout_blocktime; 3058 waittime = timeout_blocktime;
2099 3059
2100 sleeptime = waittime - backend_fudge; 3060 /* at this point, we NEED to wait, so we have to ensure */
3061 /* to pass a minimum nonzero value to the backend */
3062 if (expect_false (waittime < backend_mintime))
3063 waittime = backend_mintime;
2101 3064
3065 /* extra check because io_blocktime is commonly 0 */
2102 if (expect_true (sleeptime > io_blocktime)) 3066 if (expect_false (io_blocktime))
2103 sleeptime = io_blocktime;
2104
2105 if (sleeptime)
2106 { 3067 {
3068 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3069
3070 if (sleeptime > waittime - backend_mintime)
3071 sleeptime = waittime - backend_mintime;
3072
3073 if (expect_true (sleeptime > 0.))
3074 {
2107 ev_sleep (sleeptime); 3075 ev_sleep (sleeptime);
2108 waittime -= sleeptime; 3076 waittime -= sleeptime;
3077 }
2109 } 3078 }
2110 } 3079 }
2111 3080
3081#if EV_FEATURE_API
2112 ++loop_count; 3082 ++loop_count;
3083#endif
3084 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2113 backend_poll (EV_A_ waittime); 3085 backend_poll (EV_A_ waittime);
3086 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3087
3088 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3089
3090 if (pipe_write_skipped)
3091 {
3092 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3093 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3094 }
3095
2114 3096
2115 /* update ev_rt_now, do magic */ 3097 /* update ev_rt_now, do magic */
2116 time_update (EV_A_ waittime + sleeptime); 3098 time_update (EV_A_ waittime + sleeptime);
2117 } 3099 }
2118 3100
… …
2125#if EV_IDLE_ENABLE 3107#if EV_IDLE_ENABLE
2126 /* queue idle watchers unless other events are pending */ 3108 /* queue idle watchers unless other events are pending */
2127 idle_reify (EV_A); 3109 idle_reify (EV_A);
2128#endif 3110#endif
2129 3111
3112#if EV_CHECK_ENABLE
2130 /* queue check watchers, to be executed first */ 3113 /* queue check watchers, to be executed first */
2131 if (expect_false (checkcnt)) 3114 if (expect_false (checkcnt))
2132 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3115 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3116#endif
2133 3117
2134 call_pending (EV_A); 3118 EV_INVOKE_PENDING;
2135 } 3119 }
2136 while (expect_true ( 3120 while (expect_true (
2137 activecnt 3121 activecnt
2138 && !loop_done 3122 && !loop_done
2139 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3123 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2140 )); 3124 ));
2141 3125
2142 if (loop_done == EVUNLOOP_ONE) 3126 if (loop_done == EVBREAK_ONE)
2143 loop_done = EVUNLOOP_CANCEL; 3127 loop_done = EVBREAK_CANCEL;
3128
3129#if EV_FEATURE_API
3130 --loop_depth;
3131#endif
3132
3133 return activecnt;
2144} 3134}
2145 3135
2146void 3136void
2147ev_unloop (EV_P_ int how) 3137ev_break (EV_P_ int how) EV_THROW
2148{ 3138{
2149 loop_done = how; 3139 loop_done = how;
2150} 3140}
2151 3141
2152void 3142void
2153ev_ref (EV_P) 3143ev_ref (EV_P) EV_THROW
2154{ 3144{
2155 ++activecnt; 3145 ++activecnt;
2156} 3146}
2157 3147
2158void 3148void
2159ev_unref (EV_P) 3149ev_unref (EV_P) EV_THROW
2160{ 3150{
2161 --activecnt; 3151 --activecnt;
2162} 3152}
2163 3153
2164void 3154void
2165ev_now_update (EV_P) 3155ev_now_update (EV_P) EV_THROW
2166{ 3156{
2167 time_update (EV_A_ 1e100); 3157 time_update (EV_A_ 1e100);
2168} 3158}
2169 3159
2170void 3160void
2171ev_suspend (EV_P) 3161ev_suspend (EV_P) EV_THROW
2172{ 3162{
2173 ev_now_update (EV_A); 3163 ev_now_update (EV_A);
2174} 3164}
2175 3165
2176void 3166void
2177ev_resume (EV_P) 3167ev_resume (EV_P) EV_THROW
2178{ 3168{
2179 ev_tstamp mn_prev = mn_now; 3169 ev_tstamp mn_prev = mn_now;
2180 3170
2181 ev_now_update (EV_A); 3171 ev_now_update (EV_A);
2182 timers_reschedule (EV_A_ mn_now - mn_prev); 3172 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2199inline_size void 3189inline_size void
2200wlist_del (WL *head, WL elem) 3190wlist_del (WL *head, WL elem)
2201{ 3191{
2202 while (*head) 3192 while (*head)
2203 { 3193 {
2204 if (*head == elem) 3194 if (expect_true (*head == elem))
2205 { 3195 {
2206 *head = elem->next; 3196 *head = elem->next;
2207 return; 3197 break;
2208 } 3198 }
2209 3199
2210 head = &(*head)->next; 3200 head = &(*head)->next;
2211 } 3201 }
2212} 3202}
… …
2221 w->pending = 0; 3211 w->pending = 0;
2222 } 3212 }
2223} 3213}
2224 3214
2225int 3215int
2226ev_clear_pending (EV_P_ void *w) 3216ev_clear_pending (EV_P_ void *w) EV_THROW
2227{ 3217{
2228 W w_ = (W)w; 3218 W w_ = (W)w;
2229 int pending = w_->pending; 3219 int pending = w_->pending;
2230 3220
2231 if (expect_true (pending)) 3221 if (expect_true (pending))
… …
2240} 3230}
2241 3231
2242inline_size void 3232inline_size void
2243pri_adjust (EV_P_ W w) 3233pri_adjust (EV_P_ W w)
2244{ 3234{
2245 int pri = w->priority; 3235 int pri = ev_priority (w);
2246 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 3236 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2247 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 3237 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2248 w->priority = pri; 3238 ev_set_priority (w, pri);
2249} 3239}
2250 3240
2251inline_speed void 3241inline_speed void
2252ev_start (EV_P_ W w, int active) 3242ev_start (EV_P_ W w, int active)
2253{ 3243{
… …
2264} 3254}
2265 3255
2266/*****************************************************************************/ 3256/*****************************************************************************/
2267 3257
2268void noinline 3258void noinline
2269ev_io_start (EV_P_ ev_io *w) 3259ev_io_start (EV_P_ ev_io *w) EV_THROW
2270{ 3260{
2271 int fd = w->fd; 3261 int fd = w->fd;
2272 3262
2273 if (expect_false (ev_is_active (w))) 3263 if (expect_false (ev_is_active (w)))
2274 return; 3264 return;
2275 3265
2276 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3266 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2277 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3267 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2278 3268
2279 EV_FREQUENT_CHECK; 3269 EV_FREQUENT_CHECK;
2280 3270
2281 ev_start (EV_A_ (W)w, 1); 3271 ev_start (EV_A_ (W)w, 1);
2282 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3272 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2283 wlist_add (&anfds[fd].head, (WL)w); 3273 wlist_add (&anfds[fd].head, (WL)w);
2284 3274
3275 /* common bug, apparently */
3276 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3277
2285 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 3278 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2286 w->events &= ~EV__IOFDSET; 3279 w->events &= ~EV__IOFDSET;
2287 3280
2288 EV_FREQUENT_CHECK; 3281 EV_FREQUENT_CHECK;
2289} 3282}
2290 3283
2291void noinline 3284void noinline
2292ev_io_stop (EV_P_ ev_io *w) 3285ev_io_stop (EV_P_ ev_io *w) EV_THROW
2293{ 3286{
2294 clear_pending (EV_A_ (W)w); 3287 clear_pending (EV_A_ (W)w);
2295 if (expect_false (!ev_is_active (w))) 3288 if (expect_false (!ev_is_active (w)))
2296 return; 3289 return;
2297 3290
… …
2300 EV_FREQUENT_CHECK; 3293 EV_FREQUENT_CHECK;
2301 3294
2302 wlist_del (&anfds[w->fd].head, (WL)w); 3295 wlist_del (&anfds[w->fd].head, (WL)w);
2303 ev_stop (EV_A_ (W)w); 3296 ev_stop (EV_A_ (W)w);
2304 3297
2305 fd_change (EV_A_ w->fd, 1); 3298 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2306 3299
2307 EV_FREQUENT_CHECK; 3300 EV_FREQUENT_CHECK;
2308} 3301}
2309 3302
2310void noinline 3303void noinline
2311ev_timer_start (EV_P_ ev_timer *w) 3304ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2312{ 3305{
2313 if (expect_false (ev_is_active (w))) 3306 if (expect_false (ev_is_active (w)))
2314 return; 3307 return;
2315 3308
2316 ev_at (w) += mn_now; 3309 ev_at (w) += mn_now;
… …
2330 3323
2331 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3324 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2332} 3325}
2333 3326
2334void noinline 3327void noinline
2335ev_timer_stop (EV_P_ ev_timer *w) 3328ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2336{ 3329{
2337 clear_pending (EV_A_ (W)w); 3330 clear_pending (EV_A_ (W)w);
2338 if (expect_false (!ev_is_active (w))) 3331 if (expect_false (!ev_is_active (w)))
2339 return; 3332 return;
2340 3333
… …
2352 timers [active] = timers [timercnt + HEAP0]; 3345 timers [active] = timers [timercnt + HEAP0];
2353 adjustheap (timers, timercnt, active); 3346 adjustheap (timers, timercnt, active);
2354 } 3347 }
2355 } 3348 }
2356 3349
2357 EV_FREQUENT_CHECK;
2358
2359 ev_at (w) -= mn_now; 3350 ev_at (w) -= mn_now;
2360 3351
2361 ev_stop (EV_A_ (W)w); 3352 ev_stop (EV_A_ (W)w);
3353
3354 EV_FREQUENT_CHECK;
2362} 3355}
2363 3356
2364void noinline 3357void noinline
2365ev_timer_again (EV_P_ ev_timer *w) 3358ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2366{ 3359{
2367 EV_FREQUENT_CHECK; 3360 EV_FREQUENT_CHECK;
3361
3362 clear_pending (EV_A_ (W)w);
2368 3363
2369 if (ev_is_active (w)) 3364 if (ev_is_active (w))
2370 { 3365 {
2371 if (w->repeat) 3366 if (w->repeat)
2372 { 3367 {
… …
2384 } 3379 }
2385 3380
2386 EV_FREQUENT_CHECK; 3381 EV_FREQUENT_CHECK;
2387} 3382}
2388 3383
3384ev_tstamp
3385ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3386{
3387 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3388}
3389
2389#if EV_PERIODIC_ENABLE 3390#if EV_PERIODIC_ENABLE
2390void noinline 3391void noinline
2391ev_periodic_start (EV_P_ ev_periodic *w) 3392ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2392{ 3393{
2393 if (expect_false (ev_is_active (w))) 3394 if (expect_false (ev_is_active (w)))
2394 return; 3395 return;
2395 3396
2396 if (w->reschedule_cb) 3397 if (w->reschedule_cb)
2397 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3398 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2398 else if (w->interval) 3399 else if (w->interval)
2399 { 3400 {
2400 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3401 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2401 /* this formula differs from the one in periodic_reify because we do not always round up */ 3402 periodic_recalc (EV_A_ w);
2402 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2403 } 3403 }
2404 else 3404 else
2405 ev_at (w) = w->offset; 3405 ev_at (w) = w->offset;
2406 3406
2407 EV_FREQUENT_CHECK; 3407 EV_FREQUENT_CHECK;
… …
2417 3417
2418 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3418 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2419} 3419}
2420 3420
2421void noinline 3421void noinline
2422ev_periodic_stop (EV_P_ ev_periodic *w) 3422ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2423{ 3423{
2424 clear_pending (EV_A_ (W)w); 3424 clear_pending (EV_A_ (W)w);
2425 if (expect_false (!ev_is_active (w))) 3425 if (expect_false (!ev_is_active (w)))
2426 return; 3426 return;
2427 3427
… …
2439 periodics [active] = periodics [periodiccnt + HEAP0]; 3439 periodics [active] = periodics [periodiccnt + HEAP0];
2440 adjustheap (periodics, periodiccnt, active); 3440 adjustheap (periodics, periodiccnt, active);
2441 } 3441 }
2442 } 3442 }
2443 3443
2444 EV_FREQUENT_CHECK;
2445
2446 ev_stop (EV_A_ (W)w); 3444 ev_stop (EV_A_ (W)w);
3445
3446 EV_FREQUENT_CHECK;
2447} 3447}
2448 3448
2449void noinline 3449void noinline
2450ev_periodic_again (EV_P_ ev_periodic *w) 3450ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2451{ 3451{
2452 /* TODO: use adjustheap and recalculation */ 3452 /* TODO: use adjustheap and recalculation */
2453 ev_periodic_stop (EV_A_ w); 3453 ev_periodic_stop (EV_A_ w);
2454 ev_periodic_start (EV_A_ w); 3454 ev_periodic_start (EV_A_ w);
2455} 3455}
… …
2457 3457
2458#ifndef SA_RESTART 3458#ifndef SA_RESTART
2459# define SA_RESTART 0 3459# define SA_RESTART 0
2460#endif 3460#endif
2461 3461
3462#if EV_SIGNAL_ENABLE
3463
2462void noinline 3464void noinline
2463ev_signal_start (EV_P_ ev_signal *w) 3465ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2464{ 3466{
2465#if EV_MULTIPLICITY
2466 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2467#endif
2468 if (expect_false (ev_is_active (w))) 3467 if (expect_false (ev_is_active (w)))
2469 return; 3468 return;
2470 3469
2471 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3470 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2472 3471
2473 evpipe_init (EV_A); 3472#if EV_MULTIPLICITY
3473 assert (("libev: a signal must not be attached to two different loops",
3474 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2474 3475
2475 EV_FREQUENT_CHECK; 3476 signals [w->signum - 1].loop = EV_A;
3477#endif
2476 3478
3479 EV_FREQUENT_CHECK;
3480
3481#if EV_USE_SIGNALFD
3482 if (sigfd == -2)
2477 { 3483 {
2478#ifndef _WIN32 3484 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2479 sigset_t full, prev; 3485 if (sigfd < 0 && errno == EINVAL)
2480 sigfillset (&full); 3486 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2481 sigprocmask (SIG_SETMASK, &full, &prev);
2482#endif
2483 3487
2484 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3488 if (sigfd >= 0)
3489 {
3490 fd_intern (sigfd); /* doing it twice will not hurt */
2485 3491
2486#ifndef _WIN32 3492 sigemptyset (&sigfd_set);
2487 sigprocmask (SIG_SETMASK, &prev, 0); 3493
2488#endif 3494 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3495 ev_set_priority (&sigfd_w, EV_MAXPRI);
3496 ev_io_start (EV_A_ &sigfd_w);
3497 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3498 }
2489 } 3499 }
3500
3501 if (sigfd >= 0)
3502 {
3503 /* TODO: check .head */
3504 sigaddset (&sigfd_set, w->signum);
3505 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3506
3507 signalfd (sigfd, &sigfd_set, 0);
3508 }
3509#endif
2490 3510
2491 ev_start (EV_A_ (W)w, 1); 3511 ev_start (EV_A_ (W)w, 1);
2492 wlist_add (&signals [w->signum - 1].head, (WL)w); 3512 wlist_add (&signals [w->signum - 1].head, (WL)w);
2493 3513
2494 if (!((WL)w)->next) 3514 if (!((WL)w)->next)
3515# if EV_USE_SIGNALFD
3516 if (sigfd < 0) /*TODO*/
3517# endif
2495 { 3518 {
2496#if _WIN32 3519# ifdef _WIN32
3520 evpipe_init (EV_A);
3521
2497 signal (w->signum, ev_sighandler); 3522 signal (w->signum, ev_sighandler);
2498#else 3523# else
2499 struct sigaction sa; 3524 struct sigaction sa;
3525
3526 evpipe_init (EV_A);
3527
2500 sa.sa_handler = ev_sighandler; 3528 sa.sa_handler = ev_sighandler;
2501 sigfillset (&sa.sa_mask); 3529 sigfillset (&sa.sa_mask);
2502 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3530 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2503 sigaction (w->signum, &sa, 0); 3531 sigaction (w->signum, &sa, 0);
3532
3533 if (origflags & EVFLAG_NOSIGMASK)
3534 {
3535 sigemptyset (&sa.sa_mask);
3536 sigaddset (&sa.sa_mask, w->signum);
3537 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3538 }
2504#endif 3539#endif
2505 } 3540 }
2506 3541
2507 EV_FREQUENT_CHECK; 3542 EV_FREQUENT_CHECK;
2508} 3543}
2509 3544
2510void noinline 3545void noinline
2511ev_signal_stop (EV_P_ ev_signal *w) 3546ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2512{ 3547{
2513 clear_pending (EV_A_ (W)w); 3548 clear_pending (EV_A_ (W)w);
2514 if (expect_false (!ev_is_active (w))) 3549 if (expect_false (!ev_is_active (w)))
2515 return; 3550 return;
2516 3551
… …
2518 3553
2519 wlist_del (&signals [w->signum - 1].head, (WL)w); 3554 wlist_del (&signals [w->signum - 1].head, (WL)w);
2520 ev_stop (EV_A_ (W)w); 3555 ev_stop (EV_A_ (W)w);
2521 3556
2522 if (!signals [w->signum - 1].head) 3557 if (!signals [w->signum - 1].head)
3558 {
3559#if EV_MULTIPLICITY
3560 signals [w->signum - 1].loop = 0; /* unattach from signal */
3561#endif
3562#if EV_USE_SIGNALFD
3563 if (sigfd >= 0)
3564 {
3565 sigset_t ss;
3566
3567 sigemptyset (&ss);
3568 sigaddset (&ss, w->signum);
3569 sigdelset (&sigfd_set, w->signum);
3570
3571 signalfd (sigfd, &sigfd_set, 0);
3572 sigprocmask (SIG_UNBLOCK, &ss, 0);
3573 }
3574 else
3575#endif
2523 signal (w->signum, SIG_DFL); 3576 signal (w->signum, SIG_DFL);
3577 }
2524 3578
2525 EV_FREQUENT_CHECK; 3579 EV_FREQUENT_CHECK;
2526} 3580}
3581
3582#endif
3583
3584#if EV_CHILD_ENABLE
2527 3585
2528void 3586void
2529ev_child_start (EV_P_ ev_child *w) 3587ev_child_start (EV_P_ ev_child *w) EV_THROW
2530{ 3588{
2531#if EV_MULTIPLICITY 3589#if EV_MULTIPLICITY
2532 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3590 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2533#endif 3591#endif
2534 if (expect_false (ev_is_active (w))) 3592 if (expect_false (ev_is_active (w)))
2535 return; 3593 return;
2536 3594
2537 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
2538 3596
2539 ev_start (EV_A_ (W)w, 1); 3597 ev_start (EV_A_ (W)w, 1);
2540 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3598 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2541 3599
2542 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
2543} 3601}
2544 3602
2545void 3603void
2546ev_child_stop (EV_P_ ev_child *w) 3604ev_child_stop (EV_P_ ev_child *w) EV_THROW
2547{ 3605{
2548 clear_pending (EV_A_ (W)w); 3606 clear_pending (EV_A_ (W)w);
2549 if (expect_false (!ev_is_active (w))) 3607 if (expect_false (!ev_is_active (w)))
2550 return; 3608 return;
2551 3609
2552 EV_FREQUENT_CHECK; 3610 EV_FREQUENT_CHECK;
2553 3611
2554 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3612 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2555 ev_stop (EV_A_ (W)w); 3613 ev_stop (EV_A_ (W)w);
2556 3614
2557 EV_FREQUENT_CHECK; 3615 EV_FREQUENT_CHECK;
2558} 3616}
3617
3618#endif
2559 3619
2560#if EV_STAT_ENABLE 3620#if EV_STAT_ENABLE
2561 3621
2562# ifdef _WIN32 3622# ifdef _WIN32
2563# undef lstat 3623# undef lstat
… …
2569#define MIN_STAT_INTERVAL 0.1074891 3629#define MIN_STAT_INTERVAL 0.1074891
2570 3630
2571static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3631static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2572 3632
2573#if EV_USE_INOTIFY 3633#if EV_USE_INOTIFY
2574# define EV_INOTIFY_BUFSIZE 8192 3634
3635/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3636# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2575 3637
2576static void noinline 3638static void noinline
2577infy_add (EV_P_ ev_stat *w) 3639infy_add (EV_P_ ev_stat *w)
2578{ 3640{
2579 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3641 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2580 3642
2581 if (w->wd < 0) 3643 if (w->wd >= 0)
3644 {
3645 struct statfs sfs;
3646
3647 /* now local changes will be tracked by inotify, but remote changes won't */
3648 /* unless the filesystem is known to be local, we therefore still poll */
3649 /* also do poll on <2.6.25, but with normal frequency */
3650
3651 if (!fs_2625)
3652 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3653 else if (!statfs (w->path, &sfs)
3654 && (sfs.f_type == 0x1373 /* devfs */
3655 || sfs.f_type == 0xEF53 /* ext2/3 */
3656 || sfs.f_type == 0x3153464a /* jfs */
3657 || sfs.f_type == 0x52654973 /* reiser3 */
3658 || sfs.f_type == 0x01021994 /* tempfs */
3659 || sfs.f_type == 0x58465342 /* xfs */))
3660 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3661 else
3662 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2582 { 3663 }
3664 else
3665 {
3666 /* can't use inotify, continue to stat */
2583 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3667 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2584 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2585 3668
2586 /* monitor some parent directory for speedup hints */ 3669 /* if path is not there, monitor some parent directory for speedup hints */
2587 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3670 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2588 /* but an efficiency issue only */ 3671 /* but an efficiency issue only */
2589 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3672 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2590 { 3673 {
2591 char path [4096]; 3674 char path [4096];
… …
2601 if (!pend || pend == path) 3684 if (!pend || pend == path)
2602 break; 3685 break;
2603 3686
2604 *pend = 0; 3687 *pend = 0;
2605 w->wd = inotify_add_watch (fs_fd, path, mask); 3688 w->wd = inotify_add_watch (fs_fd, path, mask);
2606 } 3689 }
2607 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3690 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2608 } 3691 }
2609 } 3692 }
2610 3693
2611 if (w->wd >= 0) 3694 if (w->wd >= 0)
2612 {
2613 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3695 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2614 3696
2615 /* now local changes will be tracked by inotify, but remote changes won't */ 3697 /* now re-arm timer, if required */
2616 /* unless the filesystem it known to be local, we therefore still poll */ 3698 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2617 /* also do poll on <2.6.25, but with normal frequency */
2618 struct statfs sfs;
2619
2620 if (fs_2625 && !statfs (w->path, &sfs))
2621 if (sfs.f_type == 0x1373 /* devfs */
2622 || sfs.f_type == 0xEF53 /* ext2/3 */
2623 || sfs.f_type == 0x3153464a /* jfs */
2624 || sfs.f_type == 0x52654973 /* reiser3 */
2625 || sfs.f_type == 0x01021994 /* tempfs */
2626 || sfs.f_type == 0x58465342 /* xfs */)
2627 return;
2628
2629 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2630 ev_timer_again (EV_A_ &w->timer); 3699 ev_timer_again (EV_A_ &w->timer);
2631 } 3700 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2632} 3701}
2633 3702
2634static void noinline 3703static void noinline
2635infy_del (EV_P_ ev_stat *w) 3704infy_del (EV_P_ ev_stat *w)
2636{ 3705{
… …
2639 3708
2640 if (wd < 0) 3709 if (wd < 0)
2641 return; 3710 return;
2642 3711
2643 w->wd = -2; 3712 w->wd = -2;
2644 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3713 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2645 wlist_del (&fs_hash [slot].head, (WL)w); 3714 wlist_del (&fs_hash [slot].head, (WL)w);
2646 3715
2647 /* remove this watcher, if others are watching it, they will rearm */ 3716 /* remove this watcher, if others are watching it, they will rearm */
2648 inotify_rm_watch (fs_fd, wd); 3717 inotify_rm_watch (fs_fd, wd);
2649} 3718}
… …
2651static void noinline 3720static void noinline
2652infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3721infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2653{ 3722{
2654 if (slot < 0) 3723 if (slot < 0)
2655 /* overflow, need to check for all hash slots */ 3724 /* overflow, need to check for all hash slots */
2656 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3725 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2657 infy_wd (EV_A_ slot, wd, ev); 3726 infy_wd (EV_A_ slot, wd, ev);
2658 else 3727 else
2659 { 3728 {
2660 WL w_; 3729 WL w_;
2661 3730
2662 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3731 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2663 { 3732 {
2664 ev_stat *w = (ev_stat *)w_; 3733 ev_stat *w = (ev_stat *)w_;
2665 w_ = w_->next; /* lets us remove this watcher and all before it */ 3734 w_ = w_->next; /* lets us remove this watcher and all before it */
2666 3735
2667 if (w->wd == wd || wd == -1) 3736 if (w->wd == wd || wd == -1)
2668 { 3737 {
2669 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3738 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2670 { 3739 {
2671 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3740 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2672 w->wd = -1; 3741 w->wd = -1;
2673 infy_add (EV_A_ w); /* re-add, no matter what */ 3742 infy_add (EV_A_ w); /* re-add, no matter what */
2674 } 3743 }
2675 3744
2676 stat_timer_cb (EV_A_ &w->timer, 0); 3745 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2681 3750
2682static void 3751static void
2683infy_cb (EV_P_ ev_io *w, int revents) 3752infy_cb (EV_P_ ev_io *w, int revents)
2684{ 3753{
2685 char buf [EV_INOTIFY_BUFSIZE]; 3754 char buf [EV_INOTIFY_BUFSIZE];
2686 struct inotify_event *ev = (struct inotify_event *)buf;
2687 int ofs; 3755 int ofs;
2688 int len = read (fs_fd, buf, sizeof (buf)); 3756 int len = read (fs_fd, buf, sizeof (buf));
2689 3757
2690 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3758 for (ofs = 0; ofs < len; )
3759 {
3760 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2691 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3761 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3762 ofs += sizeof (struct inotify_event) + ev->len;
3763 }
2692} 3764}
2693 3765
2694inline_size void 3766inline_size void ecb_cold
2695check_2625 (EV_P) 3767ev_check_2625 (EV_P)
2696{ 3768{
2697 /* kernels < 2.6.25 are borked 3769 /* kernels < 2.6.25 are borked
2698 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3770 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2699 */ 3771 */
2700 struct utsname buf; 3772 if (ev_linux_version () < 0x020619)
2701 int major, minor, micro;
2702
2703 if (uname (&buf))
2704 return; 3773 return;
2705 3774
2706 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2707 return;
2708
2709 if (major < 2
2710 || (major == 2 && minor < 6)
2711 || (major == 2 && minor == 6 && micro < 25))
2712 return;
2713
2714 fs_2625 = 1; 3775 fs_2625 = 1;
3776}
3777
3778inline_size int
3779infy_newfd (void)
3780{
3781#if defined IN_CLOEXEC && defined IN_NONBLOCK
3782 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3783 if (fd >= 0)
3784 return fd;
3785#endif
3786 return inotify_init ();
2715} 3787}
2716 3788
2717inline_size void 3789inline_size void
2718infy_init (EV_P) 3790infy_init (EV_P)
2719{ 3791{
2720 if (fs_fd != -2) 3792 if (fs_fd != -2)
2721 return; 3793 return;
2722 3794
2723 fs_fd = -1; 3795 fs_fd = -1;
2724 3796
2725 check_2625 (EV_A); 3797 ev_check_2625 (EV_A);
2726 3798
2727 fs_fd = inotify_init (); 3799 fs_fd = infy_newfd ();
2728 3800
2729 if (fs_fd >= 0) 3801 if (fs_fd >= 0)
2730 { 3802 {
3803 fd_intern (fs_fd);
2731 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3804 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2732 ev_set_priority (&fs_w, EV_MAXPRI); 3805 ev_set_priority (&fs_w, EV_MAXPRI);
2733 ev_io_start (EV_A_ &fs_w); 3806 ev_io_start (EV_A_ &fs_w);
3807 ev_unref (EV_A);
2734 } 3808 }
2735} 3809}
2736 3810
2737inline_size void 3811inline_size void
2738infy_fork (EV_P) 3812infy_fork (EV_P)
… …
2740 int slot; 3814 int slot;
2741 3815
2742 if (fs_fd < 0) 3816 if (fs_fd < 0)
2743 return; 3817 return;
2744 3818
3819 ev_ref (EV_A);
3820 ev_io_stop (EV_A_ &fs_w);
2745 close (fs_fd); 3821 close (fs_fd);
2746 fs_fd = inotify_init (); 3822 fs_fd = infy_newfd ();
2747 3823
3824 if (fs_fd >= 0)
3825 {
3826 fd_intern (fs_fd);
3827 ev_io_set (&fs_w, fs_fd, EV_READ);
3828 ev_io_start (EV_A_ &fs_w);
3829 ev_unref (EV_A);
3830 }
3831
2748 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3832 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2749 { 3833 {
2750 WL w_ = fs_hash [slot].head; 3834 WL w_ = fs_hash [slot].head;
2751 fs_hash [slot].head = 0; 3835 fs_hash [slot].head = 0;
2752 3836
2753 while (w_) 3837 while (w_)
… …
2758 w->wd = -1; 3842 w->wd = -1;
2759 3843
2760 if (fs_fd >= 0) 3844 if (fs_fd >= 0)
2761 infy_add (EV_A_ w); /* re-add, no matter what */ 3845 infy_add (EV_A_ w); /* re-add, no matter what */
2762 else 3846 else
3847 {
3848 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3849 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2763 ev_timer_again (EV_A_ &w->timer); 3850 ev_timer_again (EV_A_ &w->timer);
3851 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3852 }
2764 } 3853 }
2765 } 3854 }
2766} 3855}
2767 3856
2768#endif 3857#endif
… …
2772#else 3861#else
2773# define EV_LSTAT(p,b) lstat (p, b) 3862# define EV_LSTAT(p,b) lstat (p, b)
2774#endif 3863#endif
2775 3864
2776void 3865void
2777ev_stat_stat (EV_P_ ev_stat *w) 3866ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2778{ 3867{
2779 if (lstat (w->path, &w->attr) < 0) 3868 if (lstat (w->path, &w->attr) < 0)
2780 w->attr.st_nlink = 0; 3869 w->attr.st_nlink = 0;
2781 else if (!w->attr.st_nlink) 3870 else if (!w->attr.st_nlink)
2782 w->attr.st_nlink = 1; 3871 w->attr.st_nlink = 1;
… …
2785static void noinline 3874static void noinline
2786stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3875stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2787{ 3876{
2788 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3877 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2789 3878
2790 /* we copy this here each the time so that */ 3879 ev_statdata prev = w->attr;
2791 /* prev has the old value when the callback gets invoked */
2792 w->prev = w->attr;
2793 ev_stat_stat (EV_A_ w); 3880 ev_stat_stat (EV_A_ w);
2794 3881
2795 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3882 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2796 if ( 3883 if (
2797 w->prev.st_dev != w->attr.st_dev 3884 prev.st_dev != w->attr.st_dev
2798 || w->prev.st_ino != w->attr.st_ino 3885 || prev.st_ino != w->attr.st_ino
2799 || w->prev.st_mode != w->attr.st_mode 3886 || prev.st_mode != w->attr.st_mode
2800 || w->prev.st_nlink != w->attr.st_nlink 3887 || prev.st_nlink != w->attr.st_nlink
2801 || w->prev.st_uid != w->attr.st_uid 3888 || prev.st_uid != w->attr.st_uid
2802 || w->prev.st_gid != w->attr.st_gid 3889 || prev.st_gid != w->attr.st_gid
2803 || w->prev.st_rdev != w->attr.st_rdev 3890 || prev.st_rdev != w->attr.st_rdev
2804 || w->prev.st_size != w->attr.st_size 3891 || prev.st_size != w->attr.st_size
2805 || w->prev.st_atime != w->attr.st_atime 3892 || prev.st_atime != w->attr.st_atime
2806 || w->prev.st_mtime != w->attr.st_mtime 3893 || prev.st_mtime != w->attr.st_mtime
2807 || w->prev.st_ctime != w->attr.st_ctime 3894 || prev.st_ctime != w->attr.st_ctime
2808 ) { 3895 ) {
3896 /* we only update w->prev on actual differences */
3897 /* in case we test more often than invoke the callback, */
3898 /* to ensure that prev is always different to attr */
3899 w->prev = prev;
3900
2809 #if EV_USE_INOTIFY 3901 #if EV_USE_INOTIFY
2810 if (fs_fd >= 0) 3902 if (fs_fd >= 0)
2811 { 3903 {
2812 infy_del (EV_A_ w); 3904 infy_del (EV_A_ w);
2813 infy_add (EV_A_ w); 3905 infy_add (EV_A_ w);
… …
2818 ev_feed_event (EV_A_ w, EV_STAT); 3910 ev_feed_event (EV_A_ w, EV_STAT);
2819 } 3911 }
2820} 3912}
2821 3913
2822void 3914void
2823ev_stat_start (EV_P_ ev_stat *w) 3915ev_stat_start (EV_P_ ev_stat *w) EV_THROW
2824{ 3916{
2825 if (expect_false (ev_is_active (w))) 3917 if (expect_false (ev_is_active (w)))
2826 return; 3918 return;
2827 3919
2828 ev_stat_stat (EV_A_ w); 3920 ev_stat_stat (EV_A_ w);
… …
2838 3930
2839 if (fs_fd >= 0) 3931 if (fs_fd >= 0)
2840 infy_add (EV_A_ w); 3932 infy_add (EV_A_ w);
2841 else 3933 else
2842#endif 3934#endif
3935 {
2843 ev_timer_again (EV_A_ &w->timer); 3936 ev_timer_again (EV_A_ &w->timer);
3937 ev_unref (EV_A);
3938 }
2844 3939
2845 ev_start (EV_A_ (W)w, 1); 3940 ev_start (EV_A_ (W)w, 1);
2846 3941
2847 EV_FREQUENT_CHECK; 3942 EV_FREQUENT_CHECK;
2848} 3943}
2849 3944
2850void 3945void
2851ev_stat_stop (EV_P_ ev_stat *w) 3946ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
2852{ 3947{
2853 clear_pending (EV_A_ (W)w); 3948 clear_pending (EV_A_ (W)w);
2854 if (expect_false (!ev_is_active (w))) 3949 if (expect_false (!ev_is_active (w)))
2855 return; 3950 return;
2856 3951
2857 EV_FREQUENT_CHECK; 3952 EV_FREQUENT_CHECK;
2858 3953
2859#if EV_USE_INOTIFY 3954#if EV_USE_INOTIFY
2860 infy_del (EV_A_ w); 3955 infy_del (EV_A_ w);
2861#endif 3956#endif
3957
3958 if (ev_is_active (&w->timer))
3959 {
3960 ev_ref (EV_A);
2862 ev_timer_stop (EV_A_ &w->timer); 3961 ev_timer_stop (EV_A_ &w->timer);
3962 }
2863 3963
2864 ev_stop (EV_A_ (W)w); 3964 ev_stop (EV_A_ (W)w);
2865 3965
2866 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
2867} 3967}
2868#endif 3968#endif
2869 3969
2870#if EV_IDLE_ENABLE 3970#if EV_IDLE_ENABLE
2871void 3971void
2872ev_idle_start (EV_P_ ev_idle *w) 3972ev_idle_start (EV_P_ ev_idle *w) EV_THROW
2873{ 3973{
2874 if (expect_false (ev_is_active (w))) 3974 if (expect_false (ev_is_active (w)))
2875 return; 3975 return;
2876 3976
2877 pri_adjust (EV_A_ (W)w); 3977 pri_adjust (EV_A_ (W)w);
… …
2890 3990
2891 EV_FREQUENT_CHECK; 3991 EV_FREQUENT_CHECK;
2892} 3992}
2893 3993
2894void 3994void
2895ev_idle_stop (EV_P_ ev_idle *w) 3995ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
2896{ 3996{
2897 clear_pending (EV_A_ (W)w); 3997 clear_pending (EV_A_ (W)w);
2898 if (expect_false (!ev_is_active (w))) 3998 if (expect_false (!ev_is_active (w)))
2899 return; 3999 return;
2900 4000
… …
2912 4012
2913 EV_FREQUENT_CHECK; 4013 EV_FREQUENT_CHECK;
2914} 4014}
2915#endif 4015#endif
2916 4016
4017#if EV_PREPARE_ENABLE
2917void 4018void
2918ev_prepare_start (EV_P_ ev_prepare *w) 4019ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
2919{ 4020{
2920 if (expect_false (ev_is_active (w))) 4021 if (expect_false (ev_is_active (w)))
2921 return; 4022 return;
2922 4023
2923 EV_FREQUENT_CHECK; 4024 EV_FREQUENT_CHECK;
… …
2928 4029
2929 EV_FREQUENT_CHECK; 4030 EV_FREQUENT_CHECK;
2930} 4031}
2931 4032
2932void 4033void
2933ev_prepare_stop (EV_P_ ev_prepare *w) 4034ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
2934{ 4035{
2935 clear_pending (EV_A_ (W)w); 4036 clear_pending (EV_A_ (W)w);
2936 if (expect_false (!ev_is_active (w))) 4037 if (expect_false (!ev_is_active (w)))
2937 return; 4038 return;
2938 4039
… …
2947 4048
2948 ev_stop (EV_A_ (W)w); 4049 ev_stop (EV_A_ (W)w);
2949 4050
2950 EV_FREQUENT_CHECK; 4051 EV_FREQUENT_CHECK;
2951} 4052}
4053#endif
2952 4054
4055#if EV_CHECK_ENABLE
2953void 4056void
2954ev_check_start (EV_P_ ev_check *w) 4057ev_check_start (EV_P_ ev_check *w) EV_THROW
2955{ 4058{
2956 if (expect_false (ev_is_active (w))) 4059 if (expect_false (ev_is_active (w)))
2957 return; 4060 return;
2958 4061
2959 EV_FREQUENT_CHECK; 4062 EV_FREQUENT_CHECK;
… …
2964 4067
2965 EV_FREQUENT_CHECK; 4068 EV_FREQUENT_CHECK;
2966} 4069}
2967 4070
2968void 4071void
2969ev_check_stop (EV_P_ ev_check *w) 4072ev_check_stop (EV_P_ ev_check *w) EV_THROW
2970{ 4073{
2971 clear_pending (EV_A_ (W)w); 4074 clear_pending (EV_A_ (W)w);
2972 if (expect_false (!ev_is_active (w))) 4075 if (expect_false (!ev_is_active (w)))
2973 return; 4076 return;
2974 4077
… …
2983 4086
2984 ev_stop (EV_A_ (W)w); 4087 ev_stop (EV_A_ (W)w);
2985 4088
2986 EV_FREQUENT_CHECK; 4089 EV_FREQUENT_CHECK;
2987} 4090}
4091#endif
2988 4092
2989#if EV_EMBED_ENABLE 4093#if EV_EMBED_ENABLE
2990void noinline 4094void noinline
2991ev_embed_sweep (EV_P_ ev_embed *w) 4095ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
2992{ 4096{
2993 ev_loop (w->other, EVLOOP_NONBLOCK); 4097 ev_run (w->other, EVRUN_NOWAIT);
2994} 4098}
2995 4099
2996static void 4100static void
2997embed_io_cb (EV_P_ ev_io *io, int revents) 4101embed_io_cb (EV_P_ ev_io *io, int revents)
2998{ 4102{
2999 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4103 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3000 4104
3001 if (ev_cb (w)) 4105 if (ev_cb (w))
3002 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4106 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3003 else 4107 else
3004 ev_loop (w->other, EVLOOP_NONBLOCK); 4108 ev_run (w->other, EVRUN_NOWAIT);
3005} 4109}
3006 4110
3007static void 4111static void
3008embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4112embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3009{ 4113{
3010 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4114 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3011 4115
3012 { 4116 {
3013 struct ev_loop *loop = w->other; 4117 EV_P = w->other;
3014 4118
3015 while (fdchangecnt) 4119 while (fdchangecnt)
3016 { 4120 {
3017 fd_reify (EV_A); 4121 fd_reify (EV_A);
3018 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4122 ev_run (EV_A_ EVRUN_NOWAIT);
3019 } 4123 }
3020 } 4124 }
3021} 4125}
3022 4126
3023static void 4127static void
… …
3026 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4130 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3027 4131
3028 ev_embed_stop (EV_A_ w); 4132 ev_embed_stop (EV_A_ w);
3029 4133
3030 { 4134 {
3031 struct ev_loop *loop = w->other; 4135 EV_P = w->other;
3032 4136
3033 ev_loop_fork (EV_A); 4137 ev_loop_fork (EV_A);
3034 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4138 ev_run (EV_A_ EVRUN_NOWAIT);
3035 } 4139 }
3036 4140
3037 ev_embed_start (EV_A_ w); 4141 ev_embed_start (EV_A_ w);
3038} 4142}
3039 4143
… …
3044 ev_idle_stop (EV_A_ idle); 4148 ev_idle_stop (EV_A_ idle);
3045} 4149}
3046#endif 4150#endif
3047 4151
3048void 4152void
3049ev_embed_start (EV_P_ ev_embed *w) 4153ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3050{ 4154{
3051 if (expect_false (ev_is_active (w))) 4155 if (expect_false (ev_is_active (w)))
3052 return; 4156 return;
3053 4157
3054 { 4158 {
3055 struct ev_loop *loop = w->other; 4159 EV_P = w->other;
3056 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4160 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3057 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4161 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3058 } 4162 }
3059 4163
3060 EV_FREQUENT_CHECK; 4164 EV_FREQUENT_CHECK;
… …
3075 4179
3076 EV_FREQUENT_CHECK; 4180 EV_FREQUENT_CHECK;
3077} 4181}
3078 4182
3079void 4183void
3080ev_embed_stop (EV_P_ ev_embed *w) 4184ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3081{ 4185{
3082 clear_pending (EV_A_ (W)w); 4186 clear_pending (EV_A_ (W)w);
3083 if (expect_false (!ev_is_active (w))) 4187 if (expect_false (!ev_is_active (w)))
3084 return; 4188 return;
3085 4189
… …
3087 4191
3088 ev_io_stop (EV_A_ &w->io); 4192 ev_io_stop (EV_A_ &w->io);
3089 ev_prepare_stop (EV_A_ &w->prepare); 4193 ev_prepare_stop (EV_A_ &w->prepare);
3090 ev_fork_stop (EV_A_ &w->fork); 4194 ev_fork_stop (EV_A_ &w->fork);
3091 4195
4196 ev_stop (EV_A_ (W)w);
4197
3092 EV_FREQUENT_CHECK; 4198 EV_FREQUENT_CHECK;
3093} 4199}
3094#endif 4200#endif
3095 4201
3096#if EV_FORK_ENABLE 4202#if EV_FORK_ENABLE
3097void 4203void
3098ev_fork_start (EV_P_ ev_fork *w) 4204ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3099{ 4205{
3100 if (expect_false (ev_is_active (w))) 4206 if (expect_false (ev_is_active (w)))
3101 return; 4207 return;
3102 4208
3103 EV_FREQUENT_CHECK; 4209 EV_FREQUENT_CHECK;
… …
3108 4214
3109 EV_FREQUENT_CHECK; 4215 EV_FREQUENT_CHECK;
3110} 4216}
3111 4217
3112void 4218void
3113ev_fork_stop (EV_P_ ev_fork *w) 4219ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3114{ 4220{
3115 clear_pending (EV_A_ (W)w); 4221 clear_pending (EV_A_ (W)w);
3116 if (expect_false (!ev_is_active (w))) 4222 if (expect_false (!ev_is_active (w)))
3117 return; 4223 return;
3118 4224
… …
3129 4235
3130 EV_FREQUENT_CHECK; 4236 EV_FREQUENT_CHECK;
3131} 4237}
3132#endif 4238#endif
3133 4239
4240#if EV_CLEANUP_ENABLE
4241void
4242ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4243{
4244 if (expect_false (ev_is_active (w)))
4245 return;
4246
4247 EV_FREQUENT_CHECK;
4248
4249 ev_start (EV_A_ (W)w, ++cleanupcnt);
4250 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4251 cleanups [cleanupcnt - 1] = w;
4252
4253 /* cleanup watchers should never keep a refcount on the loop */
4254 ev_unref (EV_A);
4255 EV_FREQUENT_CHECK;
4256}
4257
4258void
4259ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4260{
4261 clear_pending (EV_A_ (W)w);
4262 if (expect_false (!ev_is_active (w)))
4263 return;
4264
4265 EV_FREQUENT_CHECK;
4266 ev_ref (EV_A);
4267
4268 {
4269 int active = ev_active (w);
4270
4271 cleanups [active - 1] = cleanups [--cleanupcnt];
4272 ev_active (cleanups [active - 1]) = active;
4273 }
4274
4275 ev_stop (EV_A_ (W)w);
4276
4277 EV_FREQUENT_CHECK;
4278}
4279#endif
4280
3134#if EV_ASYNC_ENABLE 4281#if EV_ASYNC_ENABLE
3135void 4282void
3136ev_async_start (EV_P_ ev_async *w) 4283ev_async_start (EV_P_ ev_async *w) EV_THROW
3137{ 4284{
3138 if (expect_false (ev_is_active (w))) 4285 if (expect_false (ev_is_active (w)))
3139 return; 4286 return;
4287
4288 w->sent = 0;
3140 4289
3141 evpipe_init (EV_A); 4290 evpipe_init (EV_A);
3142 4291
3143 EV_FREQUENT_CHECK; 4292 EV_FREQUENT_CHECK;
3144 4293
… …
3148 4297
3149 EV_FREQUENT_CHECK; 4298 EV_FREQUENT_CHECK;
3150} 4299}
3151 4300
3152void 4301void
3153ev_async_stop (EV_P_ ev_async *w) 4302ev_async_stop (EV_P_ ev_async *w) EV_THROW
3154{ 4303{
3155 clear_pending (EV_A_ (W)w); 4304 clear_pending (EV_A_ (W)w);
3156 if (expect_false (!ev_is_active (w))) 4305 if (expect_false (!ev_is_active (w)))
3157 return; 4306 return;
3158 4307
… …
3169 4318
3170 EV_FREQUENT_CHECK; 4319 EV_FREQUENT_CHECK;
3171} 4320}
3172 4321
3173void 4322void
3174ev_async_send (EV_P_ ev_async *w) 4323ev_async_send (EV_P_ ev_async *w) EV_THROW
3175{ 4324{
3176 w->sent = 1; 4325 w->sent = 1;
3177 evpipe_write (EV_A_ &gotasync); 4326 evpipe_write (EV_A_ &async_pending);
3178} 4327}
3179#endif 4328#endif
3180 4329
3181/*****************************************************************************/ 4330/*****************************************************************************/
3182 4331
… …
3216 4365
3217 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4366 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3218} 4367}
3219 4368
3220void 4369void
3221ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4370ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3222{ 4371{
3223 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4372 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3224 4373
3225 if (expect_false (!once)) 4374 if (expect_false (!once))
3226 { 4375 {
3227 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4376 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3228 return; 4377 return;
3229 } 4378 }
3230 4379
3231 once->cb = cb; 4380 once->cb = cb;
3232 once->arg = arg; 4381 once->arg = arg;
… …
3247} 4396}
3248 4397
3249/*****************************************************************************/ 4398/*****************************************************************************/
3250 4399
3251#if EV_WALK_ENABLE 4400#if EV_WALK_ENABLE
3252void 4401void ecb_cold
3253ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4402ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3254{ 4403{
3255 int i, j; 4404 int i, j;
3256 ev_watcher_list *wl, *wn; 4405 ev_watcher_list *wl, *wn;
3257 4406
3258 if (types & (EV_IO | EV_EMBED)) 4407 if (types & (EV_IO | EV_EMBED))
… …
3301 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4450 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3302#endif 4451#endif
3303 4452
3304#if EV_IDLE_ENABLE 4453#if EV_IDLE_ENABLE
3305 if (types & EV_IDLE) 4454 if (types & EV_IDLE)
3306 for (j = NUMPRI; i--; ) 4455 for (j = NUMPRI; j--; )
3307 for (i = idlecnt [j]; i--; ) 4456 for (i = idlecnt [j]; i--; )
3308 cb (EV_A_ EV_IDLE, idles [j][i]); 4457 cb (EV_A_ EV_IDLE, idles [j][i]);
3309#endif 4458#endif
3310 4459
3311#if EV_FORK_ENABLE 4460#if EV_FORK_ENABLE
… …
3319 if (types & EV_ASYNC) 4468 if (types & EV_ASYNC)
3320 for (i = asynccnt; i--; ) 4469 for (i = asynccnt; i--; )
3321 cb (EV_A_ EV_ASYNC, asyncs [i]); 4470 cb (EV_A_ EV_ASYNC, asyncs [i]);
3322#endif 4471#endif
3323 4472
4473#if EV_PREPARE_ENABLE
3324 if (types & EV_PREPARE) 4474 if (types & EV_PREPARE)
3325 for (i = preparecnt; i--; ) 4475 for (i = preparecnt; i--; )
3326#if EV_EMBED_ENABLE 4476# if EV_EMBED_ENABLE
3327 if (ev_cb (prepares [i]) != embed_prepare_cb) 4477 if (ev_cb (prepares [i]) != embed_prepare_cb)
3328#endif 4478# endif
3329 cb (EV_A_ EV_PREPARE, prepares [i]); 4479 cb (EV_A_ EV_PREPARE, prepares [i]);
4480#endif
3330 4481
4482#if EV_CHECK_ENABLE
3331 if (types & EV_CHECK) 4483 if (types & EV_CHECK)
3332 for (i = checkcnt; i--; ) 4484 for (i = checkcnt; i--; )
3333 cb (EV_A_ EV_CHECK, checks [i]); 4485 cb (EV_A_ EV_CHECK, checks [i]);
4486#endif
3334 4487
4488#if EV_SIGNAL_ENABLE
3335 if (types & EV_SIGNAL) 4489 if (types & EV_SIGNAL)
3336 for (i = 0; i < signalmax; ++i) 4490 for (i = 0; i < EV_NSIG - 1; ++i)
3337 for (wl = signals [i].head; wl; ) 4491 for (wl = signals [i].head; wl; )
3338 { 4492 {
3339 wn = wl->next; 4493 wn = wl->next;
3340 cb (EV_A_ EV_SIGNAL, wl); 4494 cb (EV_A_ EV_SIGNAL, wl);
3341 wl = wn; 4495 wl = wn;
3342 } 4496 }
4497#endif
3343 4498
4499#if EV_CHILD_ENABLE
3344 if (types & EV_CHILD) 4500 if (types & EV_CHILD)
3345 for (i = EV_PID_HASHSIZE; i--; ) 4501 for (i = (EV_PID_HASHSIZE); i--; )
3346 for (wl = childs [i]; wl; ) 4502 for (wl = childs [i]; wl; )
3347 { 4503 {
3348 wn = wl->next; 4504 wn = wl->next;
3349 cb (EV_A_ EV_CHILD, wl); 4505 cb (EV_A_ EV_CHILD, wl);
3350 wl = wn; 4506 wl = wn;
3351 } 4507 }
4508#endif
3352/* EV_STAT 0x00001000 /* stat data changed */ 4509/* EV_STAT 0x00001000 /* stat data changed */
3353/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4510/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3354} 4511}
3355#endif 4512#endif
3356 4513
3357#if EV_MULTIPLICITY 4514#if EV_MULTIPLICITY
3358 #include "ev_wrap.h" 4515 #include "ev_wrap.h"
3359#endif 4516#endif
3360 4517
3361#ifdef __cplusplus
3362}
3363#endif
3364

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