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Comparing libev/ev.c (file contents):
Revision 1.298 by root, Fri Jul 10 19:10:19 2009 UTC vs.
Revision 1.428 by root, Tue May 8 15:44:09 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
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 360#endif
288 361
289/* 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, */
290/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
292# include <syscall.h> 365# include <sys/syscall.h>
293# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
294# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
295# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
296# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
297# else 370# else
… …
300# endif 373# endif
301#endif 374#endif
302 375
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 376/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304 377
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
305#ifndef CLOCK_MONOTONIC 384#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 385# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 386# define EV_USE_MONOTONIC 0
308#endif 387#endif
309 388
… …
316# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
318#endif 397#endif
319 398
320#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
321# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
322# include <sys/select.h> 402# include <sys/select.h>
323# endif 403# endif
324#endif 404#endif
325 405
326#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 407# include <sys/statfs.h>
329# include <sys/inotify.h> 408# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
… …
339#endif 418#endif
340 419
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
392#else
393# define inline_speed static inline
394#endif 967#endif
395 968
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 969#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397 970
398#if EV_MINPRI == EV_MAXPRI 971#if EV_MINPRI == EV_MAXPRI
… …
411#define ev_active(w) ((W)(w))->active 984#define ev_active(w) ((W)(w))->active
412#define ev_at(w) ((WT)(w))->at 985#define ev_at(w) ((WT)(w))->at
413 986
414#if EV_USE_REALTIME 987#if EV_USE_REALTIME
415/* 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 */
416/* giving it a reasonably high chance of working on typical architetcures */ 989/* giving it a reasonably high chance of working on typical architectures */
417static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 990static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
418#endif 991#endif
419 992
420#if EV_USE_MONOTONIC 993#if EV_USE_MONOTONIC
421static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 994static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422#endif 995#endif
423 996
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
424#ifdef _WIN32 1007#ifdef _WIN32
425# include "ev_win32.c" 1008# include "ev_win32.c"
426#endif 1009#endif
427 1010
428/*****************************************************************************/ 1011/*****************************************************************************/
429 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
430static void (*syserr_cb)(const char *msg); 1111static void (*syserr_cb)(const char *msg) EV_THROW;
431 1112
432void 1113void ecb_cold
433ev_set_syserr_cb (void (*cb)(const char *msg)) 1114ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
434{ 1115{
435 syserr_cb = cb; 1116 syserr_cb = cb;
436} 1117}
437 1118
438static void noinline 1119static void noinline ecb_cold
439ev_syserr (const char *msg) 1120ev_syserr (const char *msg)
440{ 1121{
441 if (!msg) 1122 if (!msg)
442 msg = "(libev) system error"; 1123 msg = "(libev) system error";
443 1124
444 if (syserr_cb) 1125 if (syserr_cb)
445 syserr_cb (msg); 1126 syserr_cb (msg);
446 else 1127 else
447 { 1128 {
1129#if EV_AVOID_STDIO
1130 ev_printerr (msg);
1131 ev_printerr (": ");
1132 ev_printerr (strerror (errno));
1133 ev_printerr ("\n");
1134#else
448 perror (msg); 1135 perror (msg);
1136#endif
449 abort (); 1137 abort ();
450 } 1138 }
451} 1139}
452 1140
453static void * 1141static void *
454ev_realloc_emul (void *ptr, long size) 1142ev_realloc_emul (void *ptr, long size)
455{ 1143{
1144#if __GLIBC__
1145 return realloc (ptr, size);
1146#else
456 /* some systems, notably openbsd and darwin, fail to properly 1147 /* some systems, notably openbsd and darwin, fail to properly
457 * 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
458 * the single unix specification, so work around them here. 1149 * the single unix specification, so work around them here.
459 */ 1150 */
460 1151
461 if (size) 1152 if (size)
462 return realloc (ptr, size); 1153 return realloc (ptr, size);
463 1154
464 free (ptr); 1155 free (ptr);
465 return 0; 1156 return 0;
1157#endif
466} 1158}
467 1159
468static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1160static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
469 1161
470void 1162void ecb_cold
471ev_set_allocator (void *(*cb)(void *ptr, long size)) 1163ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
472{ 1164{
473 alloc = cb; 1165 alloc = cb;
474} 1166}
475 1167
476inline_speed void * 1168inline_speed void *
… …
478{ 1170{
479 ptr = alloc (ptr, size); 1171 ptr = alloc (ptr, size);
480 1172
481 if (!ptr && size) 1173 if (!ptr && size)
482 { 1174 {
1175#if EV_AVOID_STDIO
1176 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1177#else
483 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1178 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1179#endif
484 abort (); 1180 abort ();
485 } 1181 }
486 1182
487 return ptr; 1183 return ptr;
488} 1184}
… …
504 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 */
505 unsigned char unused; 1201 unsigned char unused;
506#if EV_USE_EPOLL 1202#if EV_USE_EPOLL
507 unsigned int egen; /* generation counter to counter epoll bugs */ 1203 unsigned int egen; /* generation counter to counter epoll bugs */
508#endif 1204#endif
509#if EV_SELECT_IS_WINSOCKET 1205#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
510 SOCKET handle; 1206 SOCKET handle;
1207#endif
1208#if EV_USE_IOCP
1209 OVERLAPPED or, ow;
511#endif 1210#endif
512} ANFD; 1211} ANFD;
513 1212
514/* stores the pending event set for a given watcher */ 1213/* stores the pending event set for a given watcher */
515typedef struct 1214typedef struct
… …
557 #undef VAR 1256 #undef VAR
558 }; 1257 };
559 #include "ev_wrap.h" 1258 #include "ev_wrap.h"
560 1259
561 static struct ev_loop default_loop_struct; 1260 static struct ev_loop default_loop_struct;
562 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 */
563 1262
564#else 1263#else
565 1264
566 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 */
567 #define VAR(name,decl) static decl; 1266 #define VAR(name,decl) static decl;
568 #include "ev_vars.h" 1267 #include "ev_vars.h"
569 #undef VAR 1268 #undef VAR
570 1269
571 static int ev_default_loop_ptr; 1270 static int ev_default_loop_ptr;
572 1271
573#endif 1272#endif
574 1273
575#if EV_MINIMAL < 2 1274#if EV_FEATURE_API
576# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1275# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
577# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1276# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
578# define EV_INVOKE_PENDING invoke_cb (EV_A) 1277# define EV_INVOKE_PENDING invoke_cb (EV_A)
579#else 1278#else
580# define EV_RELEASE_CB (void)0 1279# define EV_RELEASE_CB (void)0
581# define EV_ACQUIRE_CB (void)0 1280# define EV_ACQUIRE_CB (void)0
582# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1281# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
583#endif 1282#endif
584 1283
585#define EVUNLOOP_RECURSE 0x80 1284#define EVBREAK_RECURSE 0x80
586 1285
587/*****************************************************************************/ 1286/*****************************************************************************/
588 1287
589#ifndef EV_HAVE_EV_TIME 1288#ifndef EV_HAVE_EV_TIME
590ev_tstamp 1289ev_tstamp
591ev_time (void) 1290ev_time (void) EV_THROW
592{ 1291{
593#if EV_USE_REALTIME 1292#if EV_USE_REALTIME
594 if (expect_true (have_realtime)) 1293 if (expect_true (have_realtime))
595 { 1294 {
596 struct timespec ts; 1295 struct timespec ts;
… …
620 return ev_time (); 1319 return ev_time ();
621} 1320}
622 1321
623#if EV_MULTIPLICITY 1322#if EV_MULTIPLICITY
624ev_tstamp 1323ev_tstamp
625ev_now (EV_P) 1324ev_now (EV_P) EV_THROW
626{ 1325{
627 return ev_rt_now; 1326 return ev_rt_now;
628} 1327}
629#endif 1328#endif
630 1329
631void 1330void
632ev_sleep (ev_tstamp delay) 1331ev_sleep (ev_tstamp delay) EV_THROW
633{ 1332{
634 if (delay > 0.) 1333 if (delay > 0.)
635 { 1334 {
636#if EV_USE_NANOSLEEP 1335#if EV_USE_NANOSLEEP
637 struct timespec ts; 1336 struct timespec ts;
638 1337
639 ts.tv_sec = (time_t)delay; 1338 EV_TS_SET (ts, delay);
640 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
641
642 nanosleep (&ts, 0); 1339 nanosleep (&ts, 0);
643#elif defined(_WIN32) 1340#elif defined _WIN32
644 Sleep ((unsigned long)(delay * 1e3)); 1341 Sleep ((unsigned long)(delay * 1e3));
645#else 1342#else
646 struct timeval tv; 1343 struct timeval tv;
647 1344
648 tv.tv_sec = (time_t)delay;
649 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
650
651 /* 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 */
652 /* somehting not guaranteed by newer posix versions, but guaranteed */ 1346 /* something not guaranteed by newer posix versions, but guaranteed */
653 /* by older ones */ 1347 /* by older ones */
1348 EV_TV_SET (tv, delay);
654 select (0, 0, 0, 0, &tv); 1349 select (0, 0, 0, 0, &tv);
655#endif 1350#endif
656 } 1351 }
657} 1352}
658 1353
659/*****************************************************************************/ 1354/*****************************************************************************/
660 1355
661#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 */
662 1357
663/* find a suitable new size for the given array, */ 1358/* find a suitable new size for the given array, */
664/* hopefully by rounding to a ncie-to-malloc size */ 1359/* hopefully by rounding to a nice-to-malloc size */
665inline_size int 1360inline_size int
666array_nextsize (int elem, int cur, int cnt) 1361array_nextsize (int elem, int cur, int cnt)
667{ 1362{
668 int ncur = cur + 1; 1363 int ncur = cur + 1;
669 1364
670 do 1365 do
671 ncur <<= 1; 1366 ncur <<= 1;
672 while (cnt > ncur); 1367 while (cnt > ncur);
673 1368
674 /* 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 */
675 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1370 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
676 { 1371 {
677 ncur *= elem; 1372 ncur *= elem;
678 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);
679 ncur = ncur - sizeof (void *) * 4; 1374 ncur = ncur - sizeof (void *) * 4;
… …
681 } 1376 }
682 1377
683 return ncur; 1378 return ncur;
684} 1379}
685 1380
686static noinline void * 1381static void * noinline ecb_cold
687array_realloc (int elem, void *base, int *cur, int cnt) 1382array_realloc (int elem, void *base, int *cur, int cnt)
688{ 1383{
689 *cur = array_nextsize (elem, *cur, cnt); 1384 *cur = array_nextsize (elem, *cur, cnt);
690 return ev_realloc (base, elem * *cur); 1385 return ev_realloc (base, elem * *cur);
691} 1386}
… …
694 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1389 memset ((void *)(base), 0, sizeof (*(base)) * (count))
695 1390
696#define array_needsize(type,base,cur,cnt,init) \ 1391#define array_needsize(type,base,cur,cnt,init) \
697 if (expect_false ((cnt) > (cur))) \ 1392 if (expect_false ((cnt) > (cur))) \
698 { \ 1393 { \
699 int ocur_ = (cur); \ 1394 int ecb_unused ocur_ = (cur); \
700 (base) = (type *)array_realloc \ 1395 (base) = (type *)array_realloc \
701 (sizeof (type), (base), &(cur), (cnt)); \ 1396 (sizeof (type), (base), &(cur), (cnt)); \
702 init ((base) + (ocur_), (cur) - ocur_); \ 1397 init ((base) + (ocur_), (cur) - ocur_); \
703 } 1398 }
704 1399
… …
722pendingcb (EV_P_ ev_prepare *w, int revents) 1417pendingcb (EV_P_ ev_prepare *w, int revents)
723{ 1418{
724} 1419}
725 1420
726void noinline 1421void noinline
727ev_feed_event (EV_P_ void *w, int revents) 1422ev_feed_event (EV_P_ void *w, int revents) EV_THROW
728{ 1423{
729 W w_ = (W)w; 1424 W w_ = (W)w;
730 int pri = ABSPRI (w_); 1425 int pri = ABSPRI (w_);
731 1426
732 if (expect_false (w_->pending)) 1427 if (expect_false (w_->pending))
… …
736 w_->pending = ++pendingcnt [pri]; 1431 w_->pending = ++pendingcnt [pri];
737 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1432 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
738 pendings [pri][w_->pending - 1].w = w_; 1433 pendings [pri][w_->pending - 1].w = w_;
739 pendings [pri][w_->pending - 1].events = revents; 1434 pendings [pri][w_->pending - 1].events = revents;
740 } 1435 }
1436
1437 pendingpri = NUMPRI - 1;
741} 1438}
742 1439
743inline_speed void 1440inline_speed void
744feed_reverse (EV_P_ W w) 1441feed_reverse (EV_P_ W w)
745{ 1442{
… …
765} 1462}
766 1463
767/*****************************************************************************/ 1464/*****************************************************************************/
768 1465
769inline_speed void 1466inline_speed void
770fd_event_nc (EV_P_ int fd, int revents) 1467fd_event_nocheck (EV_P_ int fd, int revents)
771{ 1468{
772 ANFD *anfd = anfds + fd; 1469 ANFD *anfd = anfds + fd;
773 ev_io *w; 1470 ev_io *w;
774 1471
775 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)
… …
787fd_event (EV_P_ int fd, int revents) 1484fd_event (EV_P_ int fd, int revents)
788{ 1485{
789 ANFD *anfd = anfds + fd; 1486 ANFD *anfd = anfds + fd;
790 1487
791 if (expect_true (!anfd->reify)) 1488 if (expect_true (!anfd->reify))
792 fd_event_nc (EV_A_ fd, revents); 1489 fd_event_nocheck (EV_A_ fd, revents);
793} 1490}
794 1491
795void 1492void
796ev_feed_fd_event (EV_P_ int fd, int revents) 1493ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
797{ 1494{
798 if (fd >= 0 && fd < anfdmax) 1495 if (fd >= 0 && fd < anfdmax)
799 fd_event_nc (EV_A_ fd, revents); 1496 fd_event_nocheck (EV_A_ fd, revents);
800} 1497}
801 1498
802/* make sure the external fd watch events are in-sync */ 1499/* make sure the external fd watch events are in-sync */
803/* with the kernel/libev internal state */ 1500/* with the kernel/libev internal state */
804inline_size void 1501inline_size void
805fd_reify (EV_P) 1502fd_reify (EV_P)
806{ 1503{
807 int i; 1504 int i;
808 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
809 for (i = 0; i < fdchangecnt; ++i) 1531 for (i = 0; i < fdchangecnt; ++i)
810 { 1532 {
811 int fd = fdchanges [i]; 1533 int fd = fdchanges [i];
812 ANFD *anfd = anfds + fd; 1534 ANFD *anfd = anfds + fd;
813 ev_io *w; 1535 ev_io *w;
814 1536
815 unsigned char events = 0; 1537 unsigned char o_events = anfd->events;
1538 unsigned char o_reify = anfd->reify;
816 1539
817 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1540 anfd->reify = 0;
818 events |= (unsigned char)w->events;
819 1541
820#if EV_SELECT_IS_WINSOCKET 1542 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
821 if (events)
822 { 1543 {
823 unsigned long arg; 1544 anfd->events = 0;
824 #ifdef EV_FD_TO_WIN32_HANDLE 1545
825 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1546 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
826 #else 1547 anfd->events |= (unsigned char)w->events;
827 anfd->handle = _get_osfhandle (fd); 1548
828 #endif 1549 if (o_events != anfd->events)
829 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1550 o_reify = EV__IOFDSET; /* actually |= */
830 } 1551 }
831#endif
832 1552
833 { 1553 if (o_reify & EV__IOFDSET)
834 unsigned char o_events = anfd->events;
835 unsigned char o_reify = anfd->reify;
836
837 anfd->reify = 0;
838 anfd->events = events;
839
840 if (o_events != events || o_reify & EV__IOFDSET)
841 backend_modify (EV_A_ fd, o_events, events); 1554 backend_modify (EV_A_ fd, o_events, anfd->events);
842 }
843 } 1555 }
844 1556
845 fdchangecnt = 0; 1557 fdchangecnt = 0;
846} 1558}
847 1559
… …
859 fdchanges [fdchangecnt - 1] = fd; 1571 fdchanges [fdchangecnt - 1] = fd;
860 } 1572 }
861} 1573}
862 1574
863/* 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 */
864inline_speed void 1576inline_speed void ecb_cold
865fd_kill (EV_P_ int fd) 1577fd_kill (EV_P_ int fd)
866{ 1578{
867 ev_io *w; 1579 ev_io *w;
868 1580
869 while ((w = (ev_io *)anfds [fd].head)) 1581 while ((w = (ev_io *)anfds [fd].head))
… …
871 ev_io_stop (EV_A_ w); 1583 ev_io_stop (EV_A_ w);
872 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);
873 } 1585 }
874} 1586}
875 1587
876/* check whether the given fd is atcually valid, for error recovery */ 1588/* check whether the given fd is actually valid, for error recovery */
877inline_size int 1589inline_size int ecb_cold
878fd_valid (int fd) 1590fd_valid (int fd)
879{ 1591{
880#ifdef _WIN32 1592#ifdef _WIN32
881 return _get_osfhandle (fd) != -1; 1593 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
882#else 1594#else
883 return fcntl (fd, F_GETFD) != -1; 1595 return fcntl (fd, F_GETFD) != -1;
884#endif 1596#endif
885} 1597}
886 1598
887/* called on EBADF to verify fds */ 1599/* called on EBADF to verify fds */
888static void noinline 1600static void noinline ecb_cold
889fd_ebadf (EV_P) 1601fd_ebadf (EV_P)
890{ 1602{
891 int fd; 1603 int fd;
892 1604
893 for (fd = 0; fd < anfdmax; ++fd) 1605 for (fd = 0; fd < anfdmax; ++fd)
… …
895 if (!fd_valid (fd) && errno == EBADF) 1607 if (!fd_valid (fd) && errno == EBADF)
896 fd_kill (EV_A_ fd); 1608 fd_kill (EV_A_ fd);
897} 1609}
898 1610
899/* 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 */
900static void noinline 1612static void noinline ecb_cold
901fd_enomem (EV_P) 1613fd_enomem (EV_P)
902{ 1614{
903 int fd; 1615 int fd;
904 1616
905 for (fd = anfdmax; fd--; ) 1617 for (fd = anfdmax; fd--; )
906 if (anfds [fd].events) 1618 if (anfds [fd].events)
907 { 1619 {
908 fd_kill (EV_A_ fd); 1620 fd_kill (EV_A_ fd);
909 return; 1621 break;
910 } 1622 }
911} 1623}
912 1624
913/* 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 */
914static void noinline 1626static void noinline
… …
923 anfds [fd].emask = 0; 1635 anfds [fd].emask = 0;
924 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1636 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
925 } 1637 }
926} 1638}
927 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
928/*****************************************************************************/ 1654/*****************************************************************************/
929 1655
930/* 1656/*
931 * 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
932 * 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
933 * the branching factor of the d-tree. 1659 * the branching factor of the d-tree.
934 */ 1660 */
935 1661
936/* 1662/*
… …
1004 1730
1005 for (;;) 1731 for (;;)
1006 { 1732 {
1007 int c = k << 1; 1733 int c = k << 1;
1008 1734
1009 if (c > N + HEAP0 - 1) 1735 if (c >= N + HEAP0)
1010 break; 1736 break;
1011 1737
1012 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])
1013 ? 1 : 0; 1739 ? 1 : 0;
1014 1740
… …
1050 1776
1051/* move an element suitably so it is in a correct place */ 1777/* move an element suitably so it is in a correct place */
1052inline_size void 1778inline_size void
1053adjustheap (ANHE *heap, int N, int k) 1779adjustheap (ANHE *heap, int N, int k)
1054{ 1780{
1055 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)]))
1056 upheap (heap, k); 1782 upheap (heap, k);
1057 else 1783 else
1058 downheap (heap, N, k); 1784 downheap (heap, N, k);
1059} 1785}
1060 1786
… …
1073/*****************************************************************************/ 1799/*****************************************************************************/
1074 1800
1075/* associate signal watchers to a signal signal */ 1801/* associate signal watchers to a signal signal */
1076typedef struct 1802typedef struct
1077{ 1803{
1804 EV_ATOMIC_T pending;
1805#if EV_MULTIPLICITY
1806 EV_P;
1807#endif
1078 WL head; 1808 WL head;
1079 EV_ATOMIC_T gotsig;
1080} ANSIG; 1809} ANSIG;
1081 1810
1082static ANSIG *signals; 1811static ANSIG signals [EV_NSIG - 1];
1083static int signalmax;
1084
1085static EV_ATOMIC_T gotsig;
1086 1812
1087/*****************************************************************************/ 1813/*****************************************************************************/
1088 1814
1089/* used to prepare libev internal fd's */ 1815#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1090/* this is not fork-safe */
1091inline_speed void
1092fd_intern (int fd)
1093{
1094#ifdef _WIN32
1095 unsigned long arg = 1;
1096 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1097#else
1098 fcntl (fd, F_SETFD, FD_CLOEXEC);
1099 fcntl (fd, F_SETFL, O_NONBLOCK);
1100#endif
1101}
1102 1816
1103static void noinline 1817static void noinline ecb_cold
1104evpipe_init (EV_P) 1818evpipe_init (EV_P)
1105{ 1819{
1106 if (!ev_is_active (&pipe_w)) 1820 if (!ev_is_active (&pipe_w))
1107 { 1821 {
1108#if EV_USE_EVENTFD 1822# if EV_USE_EVENTFD
1823 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1824 if (evfd < 0 && errno == EINVAL)
1109 if ((evfd = eventfd (0, 0)) >= 0) 1825 evfd = eventfd (0, 0);
1826
1827 if (evfd >= 0)
1110 { 1828 {
1111 evpipe [0] = -1; 1829 evpipe [0] = -1;
1112 fd_intern (evfd); 1830 fd_intern (evfd); /* doing it twice doesn't hurt */
1113 ev_io_set (&pipe_w, evfd, EV_READ); 1831 ev_io_set (&pipe_w, evfd, EV_READ);
1114 } 1832 }
1115 else 1833 else
1116#endif 1834# endif
1117 { 1835 {
1118 while (pipe (evpipe)) 1836 while (pipe (evpipe))
1119 ev_syserr ("(libev) error creating signal/async pipe"); 1837 ev_syserr ("(libev) error creating signal/async pipe");
1120 1838
1121 fd_intern (evpipe [0]); 1839 fd_intern (evpipe [0]);
… …
1126 ev_io_start (EV_A_ &pipe_w); 1844 ev_io_start (EV_A_ &pipe_w);
1127 ev_unref (EV_A); /* watcher should not keep loop alive */ 1845 ev_unref (EV_A); /* watcher should not keep loop alive */
1128 } 1846 }
1129} 1847}
1130 1848
1131inline_size void 1849inline_speed void
1132evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1850evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1133{ 1851{
1134 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)
1135 { 1866 {
1867 int old_errno;
1868
1869 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1870
1136 int old_errno = errno; /* save errno because write might clobber it */ 1871 old_errno = errno; /* save errno because write will clobber it */
1137
1138 *flag = 1;
1139 1872
1140#if EV_USE_EVENTFD 1873#if EV_USE_EVENTFD
1141 if (evfd >= 0) 1874 if (evfd >= 0)
1142 { 1875 {
1143 uint64_t counter = 1; 1876 uint64_t counter = 1;
1144 write (evfd, &counter, sizeof (uint64_t)); 1877 write (evfd, &counter, sizeof (uint64_t));
1145 } 1878 }
1146 else 1879 else
1147#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
1148 write (evpipe [1], &old_errno, 1); 1889 write (evpipe [1], &(evpipe [1]), 1);
1890#endif
1891 }
1149 1892
1150 errno = old_errno; 1893 errno = old_errno;
1151 } 1894 }
1152} 1895}
1153 1896
1154/* called whenever the libev signal pipe */ 1897/* called whenever the libev signal pipe */
1155/* got some events (signal, async) */ 1898/* got some events (signal, async) */
1156static void 1899static void
1157pipecb (EV_P_ ev_io *iow, int revents) 1900pipecb (EV_P_ ev_io *iow, int revents)
1158{ 1901{
1902 int i;
1903
1904 if (revents & EV_READ)
1905 {
1159#if EV_USE_EVENTFD 1906#if EV_USE_EVENTFD
1160 if (evfd >= 0) 1907 if (evfd >= 0)
1161 { 1908 {
1162 uint64_t counter; 1909 uint64_t counter;
1163 read (evfd, &counter, sizeof (uint64_t)); 1910 read (evfd, &counter, sizeof (uint64_t));
1164 } 1911 }
1165 else 1912 else
1166#endif 1913#endif
1167 { 1914 {
1168 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
1169 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)
1170 } 1934 {
1935 sig_pending = 0;
1171 1936
1172 if (gotsig && ev_is_default_loop (EV_A)) 1937 ECB_MEMORY_FENCE_RELEASE;
1173 {
1174 int signum;
1175 gotsig = 0;
1176 1938
1177 for (signum = signalmax; signum--; ) 1939 for (i = EV_NSIG - 1; i--; )
1178 if (signals [signum].gotsig) 1940 if (expect_false (signals [i].pending))
1179 ev_feed_signal_event (EV_A_ signum + 1); 1941 ev_feed_signal_event (EV_A_ i + 1);
1180 } 1942 }
1943#endif
1181 1944
1182#if EV_ASYNC_ENABLE 1945#if EV_ASYNC_ENABLE
1183 if (gotasync) 1946 if (async_pending)
1184 { 1947 {
1185 int i; 1948 async_pending = 0;
1186 gotasync = 0; 1949
1950 ECB_MEMORY_FENCE_RELEASE;
1187 1951
1188 for (i = asynccnt; i--; ) 1952 for (i = asynccnt; i--; )
1189 if (asyncs [i]->sent) 1953 if (asyncs [i]->sent)
1190 { 1954 {
1191 asyncs [i]->sent = 0; 1955 asyncs [i]->sent = 0;
… …
1195#endif 1959#endif
1196} 1960}
1197 1961
1198/*****************************************************************************/ 1962/*****************************************************************************/
1199 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
1200static void 1981static void
1201ev_sighandler (int signum) 1982ev_sighandler (int signum)
1202{ 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
1203#if EV_MULTIPLICITY 2001#if EV_MULTIPLICITY
1204 struct ev_loop *loop = &default_loop_struct; 2002 /* it is permissible to try to feed a signal to the wrong loop */
1205#endif 2003 /* or, likely more useful, feeding a signal nobody is waiting for */
1206 2004
1207#if _WIN32 2005 if (expect_false (signals [signum].loop != EV_A))
1208 signal (signum, ev_sighandler);
1209#endif
1210
1211 signals [signum - 1].gotsig = 1;
1212 evpipe_write (EV_A_ &gotsig);
1213}
1214
1215void noinline
1216ev_feed_signal_event (EV_P_ int signum)
1217{
1218 WL w;
1219
1220#if EV_MULTIPLICITY
1221 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1222#endif
1223
1224 --signum;
1225
1226 if (signum < 0 || signum >= signalmax)
1227 return; 2006 return;
2007#endif
1228 2008
1229 signals [signum].gotsig = 0; 2009 signals [signum].pending = 0;
1230 2010
1231 for (w = signals [signum].head; w; w = w->next) 2011 for (w = signals [signum].head; w; w = w->next)
1232 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2012 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1233} 2013}
1234 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
1235/*****************************************************************************/ 2037/*****************************************************************************/
1236 2038
2039#if EV_CHILD_ENABLE
1237static WL childs [EV_PID_HASHSIZE]; 2040static WL childs [EV_PID_HASHSIZE];
1238
1239#ifndef _WIN32
1240 2041
1241static ev_signal childev; 2042static ev_signal childev;
1242 2043
1243#ifndef WIFCONTINUED 2044#ifndef WIFCONTINUED
1244# define WIFCONTINUED(status) 0 2045# define WIFCONTINUED(status) 0
… …
1249child_reap (EV_P_ int chain, int pid, int status) 2050child_reap (EV_P_ int chain, int pid, int status)
1250{ 2051{
1251 ev_child *w; 2052 ev_child *w;
1252 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2053 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1253 2054
1254 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)
1255 { 2056 {
1256 if ((w->pid == pid || !w->pid) 2057 if ((w->pid == pid || !w->pid)
1257 && (!traced || (w->flags & 1))) 2058 && (!traced || (w->flags & 1)))
1258 { 2059 {
1259 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 */
… …
1284 /* 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 */
1285 /* 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 */
1286 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2087 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1287 2088
1288 child_reap (EV_A_ pid, pid, status); 2089 child_reap (EV_A_ pid, pid, status);
1289 if (EV_PID_HASHSIZE > 1) 2090 if ((EV_PID_HASHSIZE) > 1)
1290 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 */
1291} 2092}
1292 2093
1293#endif 2094#endif
1294 2095
1295/*****************************************************************************/ 2096/*****************************************************************************/
1296 2097
2098#if EV_USE_IOCP
2099# include "ev_iocp.c"
2100#endif
1297#if EV_USE_PORT 2101#if EV_USE_PORT
1298# include "ev_port.c" 2102# include "ev_port.c"
1299#endif 2103#endif
1300#if EV_USE_KQUEUE 2104#if EV_USE_KQUEUE
1301# include "ev_kqueue.c" 2105# include "ev_kqueue.c"
… …
1308#endif 2112#endif
1309#if EV_USE_SELECT 2113#if EV_USE_SELECT
1310# include "ev_select.c" 2114# include "ev_select.c"
1311#endif 2115#endif
1312 2116
1313int 2117int ecb_cold
1314ev_version_major (void) 2118ev_version_major (void) EV_THROW
1315{ 2119{
1316 return EV_VERSION_MAJOR; 2120 return EV_VERSION_MAJOR;
1317} 2121}
1318 2122
1319int 2123int ecb_cold
1320ev_version_minor (void) 2124ev_version_minor (void) EV_THROW
1321{ 2125{
1322 return EV_VERSION_MINOR; 2126 return EV_VERSION_MINOR;
1323} 2127}
1324 2128
1325/* 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 */
1326int inline_size 2130int inline_size ecb_cold
1327enable_secure (void) 2131enable_secure (void)
1328{ 2132{
1329#ifdef _WIN32 2133#ifdef _WIN32
1330 return 0; 2134 return 0;
1331#else 2135#else
1332 return getuid () != geteuid () 2136 return getuid () != geteuid ()
1333 || getgid () != getegid (); 2137 || getgid () != getegid ();
1334#endif 2138#endif
1335} 2139}
1336 2140
1337unsigned int 2141unsigned int ecb_cold
1338ev_supported_backends (void) 2142ev_supported_backends (void) EV_THROW
1339{ 2143{
1340 unsigned int flags = 0; 2144 unsigned int flags = 0;
1341 2145
1342 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2146 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1343 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2147 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1346 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2150 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1347 2151
1348 return flags; 2152 return flags;
1349} 2153}
1350 2154
1351unsigned int 2155unsigned int ecb_cold
1352ev_recommended_backends (void) 2156ev_recommended_backends (void) EV_THROW
1353{ 2157{
1354 unsigned int flags = ev_supported_backends (); 2158 unsigned int flags = ev_supported_backends ();
1355 2159
1356#ifndef __NetBSD__ 2160#ifndef __NetBSD__
1357 /* kqueue is borked on everything but netbsd apparently */ 2161 /* kqueue is borked on everything but netbsd apparently */
… …
1361#ifdef __APPLE__ 2165#ifdef __APPLE__
1362 /* only select works correctly on that "unix-certified" platform */ 2166 /* only select works correctly on that "unix-certified" platform */
1363 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2167 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1364 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 */
1365#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
1366 2173
1367 return flags; 2174 return flags;
1368} 2175}
1369 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
1370unsigned int 2189unsigned int
1371ev_embeddable_backends (void) 2190ev_backend (EV_P) EV_THROW
1372{ 2191{
1373 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2192 return backend;
1374
1375 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1376 /* please fix it and tell me how to detect the fix */
1377 flags &= ~EVBACKEND_EPOLL;
1378
1379 return flags;
1380} 2193}
1381 2194
2195#if EV_FEATURE_API
1382unsigned int 2196unsigned int
1383ev_backend (EV_P) 2197ev_iteration (EV_P) EV_THROW
1384{ 2198{
1385 return backend; 2199 return loop_count;
1386} 2200}
1387 2201
1388#if EV_MINIMAL < 2
1389unsigned int 2202unsigned int
1390ev_loop_count (EV_P) 2203ev_depth (EV_P) EV_THROW
1391{
1392 return loop_count;
1393}
1394
1395unsigned int
1396ev_loop_depth (EV_P)
1397{ 2204{
1398 return loop_depth; 2205 return loop_depth;
1399} 2206}
1400 2207
1401void 2208void
1402ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2209ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1403{ 2210{
1404 io_blocktime = interval; 2211 io_blocktime = interval;
1405} 2212}
1406 2213
1407void 2214void
1408ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2215ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1409{ 2216{
1410 timeout_blocktime = interval; 2217 timeout_blocktime = interval;
1411} 2218}
1412 2219
1413void 2220void
1414ev_set_userdata (EV_P_ void *data) 2221ev_set_userdata (EV_P_ void *data) EV_THROW
1415{ 2222{
1416 userdata = data; 2223 userdata = data;
1417} 2224}
1418 2225
1419void * 2226void *
1420ev_userdata (EV_P) 2227ev_userdata (EV_P) EV_THROW
1421{ 2228{
1422 return userdata; 2229 return userdata;
1423} 2230}
1424 2231
2232void
1425void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2233ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1426{ 2234{
1427 invoke_cb = invoke_pending_cb; 2235 invoke_cb = invoke_pending_cb;
1428} 2236}
1429 2237
2238void
1430void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2239ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1431{ 2240{
1432 release_cb = release; 2241 release_cb = release;
1433 acquire_cb = acquire; 2242 acquire_cb = acquire;
1434} 2243}
1435#endif 2244#endif
1436 2245
1437/* initialise a loop structure, must be zero-initialised */ 2246/* initialise a loop structure, must be zero-initialised */
1438static void noinline 2247static void noinline ecb_cold
1439loop_init (EV_P_ unsigned int flags) 2248loop_init (EV_P_ unsigned int flags) EV_THROW
1440{ 2249{
1441 if (!backend) 2250 if (!backend)
1442 { 2251 {
2252 origflags = flags;
2253
1443#if EV_USE_REALTIME 2254#if EV_USE_REALTIME
1444 if (!have_realtime) 2255 if (!have_realtime)
1445 { 2256 {
1446 struct timespec ts; 2257 struct timespec ts;
1447 2258
… …
1458 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2269 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1459 have_monotonic = 1; 2270 have_monotonic = 1;
1460 } 2271 }
1461#endif 2272#endif
1462 2273
1463 ev_rt_now = ev_time ();
1464 mn_now = get_clock ();
1465 now_floor = mn_now;
1466 rtmn_diff = ev_rt_now - mn_now;
1467#if EV_MINIMAL < 2
1468 invoke_cb = ev_invoke_pending;
1469#endif
1470
1471 io_blocktime = 0.;
1472 timeout_blocktime = 0.;
1473 backend = 0;
1474 backend_fd = -1;
1475 gotasync = 0;
1476#if EV_USE_INOTIFY
1477 fs_fd = -2;
1478#endif
1479
1480 /* pid check not overridable via env */ 2274 /* pid check not overridable via env */
1481#ifndef _WIN32 2275#ifndef _WIN32
1482 if (flags & EVFLAG_FORKCHECK) 2276 if (flags & EVFLAG_FORKCHECK)
1483 curpid = getpid (); 2277 curpid = getpid ();
1484#endif 2278#endif
… …
1486 if (!(flags & EVFLAG_NOENV) 2280 if (!(flags & EVFLAG_NOENV)
1487 && !enable_secure () 2281 && !enable_secure ()
1488 && getenv ("LIBEV_FLAGS")) 2282 && getenv ("LIBEV_FLAGS"))
1489 flags = atoi (getenv ("LIBEV_FLAGS")); 2283 flags = atoi (getenv ("LIBEV_FLAGS"));
1490 2284
1491 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))
1492 flags |= ev_recommended_backends (); 2311 flags |= ev_recommended_backends ();
1493 2312
2313#if EV_USE_IOCP
2314 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2315#endif
1494#if EV_USE_PORT 2316#if EV_USE_PORT
1495 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1496#endif 2318#endif
1497#if EV_USE_KQUEUE 2319#if EV_USE_KQUEUE
1498 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1507 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2329 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1508#endif 2330#endif
1509 2331
1510 ev_prepare_init (&pending_w, pendingcb); 2332 ev_prepare_init (&pending_w, pendingcb);
1511 2333
2334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1512 ev_init (&pipe_w, pipecb); 2335 ev_init (&pipe_w, pipecb);
1513 ev_set_priority (&pipe_w, EV_MAXPRI); 2336 ev_set_priority (&pipe_w, EV_MAXPRI);
2337#endif
1514 } 2338 }
1515} 2339}
1516 2340
1517/* free up a loop structure */ 2341/* free up a loop structure */
1518static void noinline 2342void ecb_cold
1519loop_destroy (EV_P) 2343ev_loop_destroy (EV_P)
1520{ 2344{
1521 int i; 2345 int i;
1522 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
1523 if (ev_is_active (&pipe_w)) 2370 if (ev_is_active (&pipe_w))
1524 { 2371 {
1525 ev_ref (EV_A); /* signal watcher */ 2372 /*ev_ref (EV_A);*/
1526 ev_io_stop (EV_A_ &pipe_w); 2373 /*ev_io_stop (EV_A_ &pipe_w);*/
1527 2374
1528#if EV_USE_EVENTFD 2375#if EV_USE_EVENTFD
1529 if (evfd >= 0) 2376 if (evfd >= 0)
1530 close (evfd); 2377 close (evfd);
1531#endif 2378#endif
1532 2379
1533 if (evpipe [0] >= 0) 2380 if (evpipe [0] >= 0)
1534 { 2381 {
1535 close (evpipe [0]); 2382 EV_WIN32_CLOSE_FD (evpipe [0]);
1536 close (evpipe [1]); 2383 EV_WIN32_CLOSE_FD (evpipe [1]);
1537 } 2384 }
1538 } 2385 }
2386
2387#if EV_USE_SIGNALFD
2388 if (ev_is_active (&sigfd_w))
2389 close (sigfd);
2390#endif
1539 2391
1540#if EV_USE_INOTIFY 2392#if EV_USE_INOTIFY
1541 if (fs_fd >= 0) 2393 if (fs_fd >= 0)
1542 close (fs_fd); 2394 close (fs_fd);
1543#endif 2395#endif
1544 2396
1545 if (backend_fd >= 0) 2397 if (backend_fd >= 0)
1546 close (backend_fd); 2398 close (backend_fd);
1547 2399
2400#if EV_USE_IOCP
2401 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2402#endif
1548#if EV_USE_PORT 2403#if EV_USE_PORT
1549 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2404 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1550#endif 2405#endif
1551#if EV_USE_KQUEUE 2406#if EV_USE_KQUEUE
1552 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2407 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1567#if EV_IDLE_ENABLE 2422#if EV_IDLE_ENABLE
1568 array_free (idle, [i]); 2423 array_free (idle, [i]);
1569#endif 2424#endif
1570 } 2425 }
1571 2426
1572 ev_free (anfds); anfdmax = 0; 2427 ev_free (anfds); anfds = 0; anfdmax = 0;
1573 2428
1574 /* have to use the microsoft-never-gets-it-right macro */ 2429 /* have to use the microsoft-never-gets-it-right macro */
1575 array_free (rfeed, EMPTY); 2430 array_free (rfeed, EMPTY);
1576 array_free (fdchange, EMPTY); 2431 array_free (fdchange, EMPTY);
1577 array_free (timer, EMPTY); 2432 array_free (timer, EMPTY);
… …
1579 array_free (periodic, EMPTY); 2434 array_free (periodic, EMPTY);
1580#endif 2435#endif
1581#if EV_FORK_ENABLE 2436#if EV_FORK_ENABLE
1582 array_free (fork, EMPTY); 2437 array_free (fork, EMPTY);
1583#endif 2438#endif
2439#if EV_CLEANUP_ENABLE
2440 array_free (cleanup, EMPTY);
2441#endif
1584 array_free (prepare, EMPTY); 2442 array_free (prepare, EMPTY);
1585 array_free (check, EMPTY); 2443 array_free (check, EMPTY);
1586#if EV_ASYNC_ENABLE 2444#if EV_ASYNC_ENABLE
1587 array_free (async, EMPTY); 2445 array_free (async, EMPTY);
1588#endif 2446#endif
1589 2447
1590 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
1591} 2458}
1592 2459
1593#if EV_USE_INOTIFY 2460#if EV_USE_INOTIFY
1594inline_size void infy_fork (EV_P); 2461inline_size void infy_fork (EV_P);
1595#endif 2462#endif
… …
1610 infy_fork (EV_A); 2477 infy_fork (EV_A);
1611#endif 2478#endif
1612 2479
1613 if (ev_is_active (&pipe_w)) 2480 if (ev_is_active (&pipe_w))
1614 { 2481 {
1615 /* this "locks" the handlers against writing to the pipe */ 2482 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1616 /* while we modify the fd vars */
1617 gotsig = 1;
1618#if EV_ASYNC_ENABLE
1619 gotasync = 1;
1620#endif
1621 2483
1622 ev_ref (EV_A); 2484 ev_ref (EV_A);
1623 ev_io_stop (EV_A_ &pipe_w); 2485 ev_io_stop (EV_A_ &pipe_w);
1624 2486
1625#if EV_USE_EVENTFD 2487#if EV_USE_EVENTFD
… …
1627 close (evfd); 2489 close (evfd);
1628#endif 2490#endif
1629 2491
1630 if (evpipe [0] >= 0) 2492 if (evpipe [0] >= 0)
1631 { 2493 {
1632 close (evpipe [0]); 2494 EV_WIN32_CLOSE_FD (evpipe [0]);
1633 close (evpipe [1]); 2495 EV_WIN32_CLOSE_FD (evpipe [1]);
1634 } 2496 }
1635 2497
2498#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1636 evpipe_init (EV_A); 2499 evpipe_init (EV_A);
1637 /* now iterate over everything, in case we missed something */ 2500 /* now iterate over everything, in case we missed something */
1638 pipecb (EV_A_ &pipe_w, EV_READ); 2501 pipecb (EV_A_ &pipe_w, EV_READ);
2502#endif
1639 } 2503 }
1640 2504
1641 postfork = 0; 2505 postfork = 0;
1642} 2506}
1643 2507
1644#if EV_MULTIPLICITY 2508#if EV_MULTIPLICITY
1645 2509
1646struct ev_loop * 2510struct ev_loop * ecb_cold
1647ev_loop_new (unsigned int flags) 2511ev_loop_new (unsigned int flags) EV_THROW
1648{ 2512{
1649 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));
1650 2514
1651 memset (loop, 0, sizeof (struct ev_loop)); 2515 memset (EV_A, 0, sizeof (struct ev_loop));
1652
1653 loop_init (EV_A_ flags); 2516 loop_init (EV_A_ flags);
1654 2517
1655 if (ev_backend (EV_A)) 2518 if (ev_backend (EV_A))
1656 return loop; 2519 return EV_A;
1657 2520
2521 ev_free (EV_A);
1658 return 0; 2522 return 0;
1659} 2523}
1660 2524
1661void
1662ev_loop_destroy (EV_P)
1663{
1664 loop_destroy (EV_A);
1665 ev_free (loop);
1666}
1667
1668void
1669ev_loop_fork (EV_P)
1670{
1671 postfork = 1; /* must be in line with ev_default_fork */
1672}
1673#endif /* multiplicity */ 2525#endif /* multiplicity */
1674 2526
1675#if EV_VERIFY 2527#if EV_VERIFY
1676static void noinline 2528static void noinline ecb_cold
1677verify_watcher (EV_P_ W w) 2529verify_watcher (EV_P_ W w)
1678{ 2530{
1679 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));
1680 2532
1681 if (w->pending) 2533 if (w->pending)
1682 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));
1683} 2535}
1684 2536
1685static void noinline 2537static void noinline ecb_cold
1686verify_heap (EV_P_ ANHE *heap, int N) 2538verify_heap (EV_P_ ANHE *heap, int N)
1687{ 2539{
1688 int i; 2540 int i;
1689 2541
1690 for (i = HEAP0; i < N + HEAP0; ++i) 2542 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1695 2547
1696 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2548 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1697 } 2549 }
1698} 2550}
1699 2551
1700static void noinline 2552static void noinline ecb_cold
1701array_verify (EV_P_ W *ws, int cnt) 2553array_verify (EV_P_ W *ws, int cnt)
1702{ 2554{
1703 while (cnt--) 2555 while (cnt--)
1704 { 2556 {
1705 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2557 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1706 verify_watcher (EV_A_ ws [cnt]); 2558 verify_watcher (EV_A_ ws [cnt]);
1707 } 2559 }
1708} 2560}
1709#endif 2561#endif
1710 2562
1711#if EV_MINIMAL < 2 2563#if EV_FEATURE_API
1712void 2564void ecb_cold
1713ev_loop_verify (EV_P) 2565ev_verify (EV_P) EV_THROW
1714{ 2566{
1715#if EV_VERIFY 2567#if EV_VERIFY
1716 int i; 2568 int i, j;
1717 WL w; 2569 WL w, w2;
1718 2570
1719 assert (activecnt >= -1); 2571 assert (activecnt >= -1);
1720 2572
1721 assert (fdchangemax >= fdchangecnt); 2573 assert (fdchangemax >= fdchangecnt);
1722 for (i = 0; i < fdchangecnt; ++i) 2574 for (i = 0; i < fdchangecnt; ++i)
1723 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2575 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1724 2576
1725 assert (anfdmax >= 0); 2577 assert (anfdmax >= 0);
1726 for (i = 0; i < anfdmax; ++i) 2578 for (i = j = 0; i < anfdmax; ++i)
1727 for (w = anfds [i].head; w; w = w->next) 2579 for (w = w2 = anfds [i].head; w; w = w->next)
1728 { 2580 {
1729 verify_watcher (EV_A_ (W)w); 2581 verify_watcher (EV_A_ (W)w);
2582
2583 if (j++ & 1)
2584 {
2585 assert (("libev: io watcher list contains a loop", w != w2));
2586 w2 = w2->next;
2587 }
2588
1730 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2589 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1731 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2590 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1732 } 2591 }
1733 2592
1734 assert (timermax >= timercnt); 2593 assert (timermax >= timercnt);
… …
1752#if EV_FORK_ENABLE 2611#if EV_FORK_ENABLE
1753 assert (forkmax >= forkcnt); 2612 assert (forkmax >= forkcnt);
1754 array_verify (EV_A_ (W *)forks, forkcnt); 2613 array_verify (EV_A_ (W *)forks, forkcnt);
1755#endif 2614#endif
1756 2615
2616#if EV_CLEANUP_ENABLE
2617 assert (cleanupmax >= cleanupcnt);
2618 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2619#endif
2620
1757#if EV_ASYNC_ENABLE 2621#if EV_ASYNC_ENABLE
1758 assert (asyncmax >= asynccnt); 2622 assert (asyncmax >= asynccnt);
1759 array_verify (EV_A_ (W *)asyncs, asynccnt); 2623 array_verify (EV_A_ (W *)asyncs, asynccnt);
1760#endif 2624#endif
1761 2625
2626#if EV_PREPARE_ENABLE
1762 assert (preparemax >= preparecnt); 2627 assert (preparemax >= preparecnt);
1763 array_verify (EV_A_ (W *)prepares, preparecnt); 2628 array_verify (EV_A_ (W *)prepares, preparecnt);
2629#endif
1764 2630
2631#if EV_CHECK_ENABLE
1765 assert (checkmax >= checkcnt); 2632 assert (checkmax >= checkcnt);
1766 array_verify (EV_A_ (W *)checks, checkcnt); 2633 array_verify (EV_A_ (W *)checks, checkcnt);
2634#endif
1767 2635
1768# if 0 2636# if 0
2637#if EV_CHILD_ENABLE
1769 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2638 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1770 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2639 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2640#endif
1771# endif 2641# endif
1772#endif 2642#endif
1773} 2643}
1774#endif 2644#endif
1775 2645
1776#if EV_MULTIPLICITY 2646#if EV_MULTIPLICITY
1777struct ev_loop * 2647struct ev_loop * ecb_cold
1778ev_default_loop_init (unsigned int flags)
1779#else 2648#else
1780int 2649int
2650#endif
1781ev_default_loop (unsigned int flags) 2651ev_default_loop (unsigned int flags) EV_THROW
1782#endif
1783{ 2652{
1784 if (!ev_default_loop_ptr) 2653 if (!ev_default_loop_ptr)
1785 { 2654 {
1786#if EV_MULTIPLICITY 2655#if EV_MULTIPLICITY
1787 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2656 EV_P = ev_default_loop_ptr = &default_loop_struct;
1788#else 2657#else
1789 ev_default_loop_ptr = 1; 2658 ev_default_loop_ptr = 1;
1790#endif 2659#endif
1791 2660
1792 loop_init (EV_A_ flags); 2661 loop_init (EV_A_ flags);
1793 2662
1794 if (ev_backend (EV_A)) 2663 if (ev_backend (EV_A))
1795 { 2664 {
1796#ifndef _WIN32 2665#if EV_CHILD_ENABLE
1797 ev_signal_init (&childev, childcb, SIGCHLD); 2666 ev_signal_init (&childev, childcb, SIGCHLD);
1798 ev_set_priority (&childev, EV_MAXPRI); 2667 ev_set_priority (&childev, EV_MAXPRI);
1799 ev_signal_start (EV_A_ &childev); 2668 ev_signal_start (EV_A_ &childev);
1800 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2669 ev_unref (EV_A); /* child watcher should not keep loop alive */
1801#endif 2670#endif
… …
1806 2675
1807 return ev_default_loop_ptr; 2676 return ev_default_loop_ptr;
1808} 2677}
1809 2678
1810void 2679void
1811ev_default_destroy (void) 2680ev_loop_fork (EV_P) EV_THROW
1812{ 2681{
1813#if EV_MULTIPLICITY
1814 struct ev_loop *loop = ev_default_loop_ptr;
1815#endif
1816
1817 ev_default_loop_ptr = 0;
1818
1819#ifndef _WIN32
1820 ev_ref (EV_A); /* child watcher */
1821 ev_signal_stop (EV_A_ &childev);
1822#endif
1823
1824 loop_destroy (EV_A);
1825}
1826
1827void
1828ev_default_fork (void)
1829{
1830#if EV_MULTIPLICITY
1831 struct ev_loop *loop = ev_default_loop_ptr;
1832#endif
1833
1834 postfork = 1; /* must be in line with ev_loop_fork */ 2682 postfork = 1; /* must be in line with ev_default_fork */
1835} 2683}
1836 2684
1837/*****************************************************************************/ 2685/*****************************************************************************/
1838 2686
1839void 2687void
1840ev_invoke (EV_P_ void *w, int revents) 2688ev_invoke (EV_P_ void *w, int revents)
1841{ 2689{
1842 EV_CB_INVOKE ((W)w, revents); 2690 EV_CB_INVOKE ((W)w, revents);
1843} 2691}
1844 2692
2693unsigned int
2694ev_pending_count (EV_P) EV_THROW
2695{
2696 int pri;
2697 unsigned int count = 0;
2698
2699 for (pri = NUMPRI; pri--; )
2700 count += pendingcnt [pri];
2701
2702 return count;
2703}
2704
1845void noinline 2705void noinline
1846ev_invoke_pending (EV_P) 2706ev_invoke_pending (EV_P)
1847{ 2707{
1848 int pri; 2708 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1849
1850 for (pri = NUMPRI; pri--; )
1851 while (pendingcnt [pri]) 2709 while (pendingcnt [pendingpri])
1852 { 2710 {
1853 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2711 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1854
1855 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1856 /* ^ this is no longer true, as pending_w could be here */
1857 2712
1858 p->w->pending = 0; 2713 p->w->pending = 0;
1859 EV_CB_INVOKE (p->w, p->events); 2714 EV_CB_INVOKE (p->w, p->events);
1860 EV_FREQUENT_CHECK; 2715 EV_FREQUENT_CHECK;
1861 } 2716 }
… …
1918 EV_FREQUENT_CHECK; 2773 EV_FREQUENT_CHECK;
1919 feed_reverse (EV_A_ (W)w); 2774 feed_reverse (EV_A_ (W)w);
1920 } 2775 }
1921 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2776 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1922 2777
1923 feed_reverse_done (EV_A_ EV_TIMEOUT); 2778 feed_reverse_done (EV_A_ EV_TIMER);
1924 } 2779 }
1925} 2780}
1926 2781
1927#if EV_PERIODIC_ENABLE 2782#if EV_PERIODIC_ENABLE
2783
2784static void noinline
2785periodic_recalc (EV_P_ ev_periodic *w)
2786{
2787 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2788 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2789
2790 /* the above almost always errs on the low side */
2791 while (at <= ev_rt_now)
2792 {
2793 ev_tstamp nat = at + w->interval;
2794
2795 /* when resolution fails us, we use ev_rt_now */
2796 if (expect_false (nat == at))
2797 {
2798 at = ev_rt_now;
2799 break;
2800 }
2801
2802 at = nat;
2803 }
2804
2805 ev_at (w) = at;
2806}
2807
1928/* make periodics pending */ 2808/* make periodics pending */
1929inline_size void 2809inline_size void
1930periodics_reify (EV_P) 2810periodics_reify (EV_P)
1931{ 2811{
1932 EV_FREQUENT_CHECK; 2812 EV_FREQUENT_CHECK;
… …
1951 ANHE_at_cache (periodics [HEAP0]); 2831 ANHE_at_cache (periodics [HEAP0]);
1952 downheap (periodics, periodiccnt, HEAP0); 2832 downheap (periodics, periodiccnt, HEAP0);
1953 } 2833 }
1954 else if (w->interval) 2834 else if (w->interval)
1955 { 2835 {
1956 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2836 periodic_recalc (EV_A_ w);
1957 /* if next trigger time is not sufficiently in the future, put it there */
1958 /* this might happen because of floating point inexactness */
1959 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1960 {
1961 ev_at (w) += w->interval;
1962
1963 /* if interval is unreasonably low we might still have a time in the past */
1964 /* so correct this. this will make the periodic very inexact, but the user */
1965 /* has effectively asked to get triggered more often than possible */
1966 if (ev_at (w) < ev_rt_now)
1967 ev_at (w) = ev_rt_now;
1968 }
1969
1970 ANHE_at_cache (periodics [HEAP0]); 2837 ANHE_at_cache (periodics [HEAP0]);
1971 downheap (periodics, periodiccnt, HEAP0); 2838 downheap (periodics, periodiccnt, HEAP0);
1972 } 2839 }
1973 else 2840 else
1974 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2841 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1981 feed_reverse_done (EV_A_ EV_PERIODIC); 2848 feed_reverse_done (EV_A_ EV_PERIODIC);
1982 } 2849 }
1983} 2850}
1984 2851
1985/* simply recalculate all periodics */ 2852/* simply recalculate all periodics */
1986/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2853/* TODO: maybe ensure that at least one event happens when jumping forward? */
1987static void noinline 2854static void noinline ecb_cold
1988periodics_reschedule (EV_P) 2855periodics_reschedule (EV_P)
1989{ 2856{
1990 int i; 2857 int i;
1991 2858
1992 /* adjust periodics after time jump */ 2859 /* adjust periodics after time jump */
… …
1995 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2862 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1996 2863
1997 if (w->reschedule_cb) 2864 if (w->reschedule_cb)
1998 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2865 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1999 else if (w->interval) 2866 else if (w->interval)
2000 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2867 periodic_recalc (EV_A_ w);
2001 2868
2002 ANHE_at_cache (periodics [i]); 2869 ANHE_at_cache (periodics [i]);
2003 } 2870 }
2004 2871
2005 reheap (periodics, periodiccnt); 2872 reheap (periodics, periodiccnt);
2006} 2873}
2007#endif 2874#endif
2008 2875
2009/* adjust all timers by a given offset */ 2876/* adjust all timers by a given offset */
2010static void noinline 2877static void noinline ecb_cold
2011timers_reschedule (EV_P_ ev_tstamp adjust) 2878timers_reschedule (EV_P_ ev_tstamp adjust)
2012{ 2879{
2013 int i; 2880 int i;
2014 2881
2015 for (i = 0; i < timercnt; ++i) 2882 for (i = 0; i < timercnt; ++i)
… …
2019 ANHE_at_cache (*he); 2886 ANHE_at_cache (*he);
2020 } 2887 }
2021} 2888}
2022 2889
2023/* fetch new monotonic and realtime times from the kernel */ 2890/* fetch new monotonic and realtime times from the kernel */
2024/* also detetc if there was a timejump, and act accordingly */ 2891/* also detect if there was a timejump, and act accordingly */
2025inline_speed void 2892inline_speed void
2026time_update (EV_P_ ev_tstamp max_block) 2893time_update (EV_P_ ev_tstamp max_block)
2027{ 2894{
2028#if EV_USE_MONOTONIC 2895#if EV_USE_MONOTONIC
2029 if (expect_true (have_monotonic)) 2896 if (expect_true (have_monotonic))
… …
2052 * doesn't hurt either as we only do this on time-jumps or 2919 * doesn't hurt either as we only do this on time-jumps or
2053 * in the unlikely event of having been preempted here. 2920 * in the unlikely event of having been preempted here.
2054 */ 2921 */
2055 for (i = 4; --i; ) 2922 for (i = 4; --i; )
2056 { 2923 {
2924 ev_tstamp diff;
2057 rtmn_diff = ev_rt_now - mn_now; 2925 rtmn_diff = ev_rt_now - mn_now;
2058 2926
2927 diff = odiff - rtmn_diff;
2928
2059 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2929 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2060 return; /* all is well */ 2930 return; /* all is well */
2061 2931
2062 ev_rt_now = ev_time (); 2932 ev_rt_now = ev_time ();
2063 mn_now = get_clock (); 2933 mn_now = get_clock ();
2064 now_floor = mn_now; 2934 now_floor = mn_now;
… …
2086 2956
2087 mn_now = ev_rt_now; 2957 mn_now = ev_rt_now;
2088 } 2958 }
2089} 2959}
2090 2960
2091void 2961int
2092ev_loop (EV_P_ int flags) 2962ev_run (EV_P_ int flags)
2093{ 2963{
2094#if EV_MINIMAL < 2 2964#if EV_FEATURE_API
2095 ++loop_depth; 2965 ++loop_depth;
2096#endif 2966#endif
2097 2967
2098 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2968 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2099 2969
2100 loop_done = EVUNLOOP_CANCEL; 2970 loop_done = EVBREAK_CANCEL;
2101 2971
2102 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2972 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2103 2973
2104 do 2974 do
2105 { 2975 {
2106#if EV_VERIFY >= 2 2976#if EV_VERIFY >= 2
2107 ev_loop_verify (EV_A); 2977 ev_verify (EV_A);
2108#endif 2978#endif
2109 2979
2110#ifndef _WIN32 2980#ifndef _WIN32
2111 if (expect_false (curpid)) /* penalise the forking check even more */ 2981 if (expect_false (curpid)) /* penalise the forking check even more */
2112 if (expect_false (getpid () != curpid)) 2982 if (expect_false (getpid () != curpid))
… …
2124 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2994 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2125 EV_INVOKE_PENDING; 2995 EV_INVOKE_PENDING;
2126 } 2996 }
2127#endif 2997#endif
2128 2998
2999#if EV_PREPARE_ENABLE
2129 /* queue prepare watchers (and execute them) */ 3000 /* queue prepare watchers (and execute them) */
2130 if (expect_false (preparecnt)) 3001 if (expect_false (preparecnt))
2131 { 3002 {
2132 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3003 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2133 EV_INVOKE_PENDING; 3004 EV_INVOKE_PENDING;
2134 } 3005 }
3006#endif
2135 3007
2136 if (expect_false (loop_done)) 3008 if (expect_false (loop_done))
2137 break; 3009 break;
2138 3010
2139 /* we might have forked, so reify kernel state if necessary */ 3011 /* we might have forked, so reify kernel state if necessary */
… …
2146 /* calculate blocking time */ 3018 /* calculate blocking time */
2147 { 3019 {
2148 ev_tstamp waittime = 0.; 3020 ev_tstamp waittime = 0.;
2149 ev_tstamp sleeptime = 0.; 3021 ev_tstamp sleeptime = 0.;
2150 3022
3023 /* remember old timestamp for io_blocktime calculation */
3024 ev_tstamp prev_mn_now = mn_now;
3025
3026 /* update time to cancel out callback processing overhead */
3027 time_update (EV_A_ 1e100);
3028
3029 /* from now on, we want a pipe-wake-up */
3030 pipe_write_wanted = 1;
3031
3032 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3033
2151 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3034 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2152 { 3035 {
2153 /* remember old timestamp for io_blocktime calculation */
2154 ev_tstamp prev_mn_now = mn_now;
2155
2156 /* update time to cancel out callback processing overhead */
2157 time_update (EV_A_ 1e100);
2158
2159 waittime = MAX_BLOCKTIME; 3036 waittime = MAX_BLOCKTIME;
2160 3037
2161 if (timercnt) 3038 if (timercnt)
2162 { 3039 {
2163 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3040 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2164 if (waittime > to) waittime = to; 3041 if (waittime > to) waittime = to;
2165 } 3042 }
2166 3043
2167#if EV_PERIODIC_ENABLE 3044#if EV_PERIODIC_ENABLE
2168 if (periodiccnt) 3045 if (periodiccnt)
2169 { 3046 {
2170 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3047 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2171 if (waittime > to) waittime = to; 3048 if (waittime > to) waittime = to;
2172 } 3049 }
2173#endif 3050#endif
2174 3051
2175 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3052 /* don't let timeouts decrease the waittime below timeout_blocktime */
2176 if (expect_false (waittime < timeout_blocktime)) 3053 if (expect_false (waittime < timeout_blocktime))
2177 waittime = timeout_blocktime; 3054 waittime = timeout_blocktime;
3055
3056 /* at this point, we NEED to wait, so we have to ensure */
3057 /* to pass a minimum nonzero value to the backend */
3058 if (expect_false (waittime < backend_mintime))
3059 waittime = backend_mintime;
2178 3060
2179 /* extra check because io_blocktime is commonly 0 */ 3061 /* extra check because io_blocktime is commonly 0 */
2180 if (expect_false (io_blocktime)) 3062 if (expect_false (io_blocktime))
2181 { 3063 {
2182 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3064 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2183 3065
2184 if (sleeptime > waittime - backend_fudge) 3066 if (sleeptime > waittime - backend_mintime)
2185 sleeptime = waittime - backend_fudge; 3067 sleeptime = waittime - backend_mintime;
2186 3068
2187 if (expect_true (sleeptime > 0.)) 3069 if (expect_true (sleeptime > 0.))
2188 { 3070 {
2189 ev_sleep (sleeptime); 3071 ev_sleep (sleeptime);
2190 waittime -= sleeptime; 3072 waittime -= sleeptime;
2191 } 3073 }
2192 } 3074 }
2193 } 3075 }
2194 3076
2195#if EV_MINIMAL < 2 3077#if EV_FEATURE_API
2196 ++loop_count; 3078 ++loop_count;
2197#endif 3079#endif
2198 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3080 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2199 backend_poll (EV_A_ waittime); 3081 backend_poll (EV_A_ waittime);
2200 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3082 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3083
3084 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3085
3086 if (pipe_write_skipped)
3087 {
3088 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3089 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3090 }
3091
2201 3092
2202 /* update ev_rt_now, do magic */ 3093 /* update ev_rt_now, do magic */
2203 time_update (EV_A_ waittime + sleeptime); 3094 time_update (EV_A_ waittime + sleeptime);
2204 } 3095 }
2205 3096
… …
2212#if EV_IDLE_ENABLE 3103#if EV_IDLE_ENABLE
2213 /* queue idle watchers unless other events are pending */ 3104 /* queue idle watchers unless other events are pending */
2214 idle_reify (EV_A); 3105 idle_reify (EV_A);
2215#endif 3106#endif
2216 3107
3108#if EV_CHECK_ENABLE
2217 /* queue check watchers, to be executed first */ 3109 /* queue check watchers, to be executed first */
2218 if (expect_false (checkcnt)) 3110 if (expect_false (checkcnt))
2219 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3111 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3112#endif
2220 3113
2221 EV_INVOKE_PENDING; 3114 EV_INVOKE_PENDING;
2222 } 3115 }
2223 while (expect_true ( 3116 while (expect_true (
2224 activecnt 3117 activecnt
2225 && !loop_done 3118 && !loop_done
2226 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3119 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2227 )); 3120 ));
2228 3121
2229 if (loop_done == EVUNLOOP_ONE) 3122 if (loop_done == EVBREAK_ONE)
2230 loop_done = EVUNLOOP_CANCEL; 3123 loop_done = EVBREAK_CANCEL;
2231 3124
2232#if EV_MINIMAL < 2 3125#if EV_FEATURE_API
2233 --loop_depth; 3126 --loop_depth;
2234#endif 3127#endif
3128
3129 return activecnt;
2235} 3130}
2236 3131
2237void 3132void
2238ev_unloop (EV_P_ int how) 3133ev_break (EV_P_ int how) EV_THROW
2239{ 3134{
2240 loop_done = how; 3135 loop_done = how;
2241} 3136}
2242 3137
2243void 3138void
2244ev_ref (EV_P) 3139ev_ref (EV_P) EV_THROW
2245{ 3140{
2246 ++activecnt; 3141 ++activecnt;
2247} 3142}
2248 3143
2249void 3144void
2250ev_unref (EV_P) 3145ev_unref (EV_P) EV_THROW
2251{ 3146{
2252 --activecnt; 3147 --activecnt;
2253} 3148}
2254 3149
2255void 3150void
2256ev_now_update (EV_P) 3151ev_now_update (EV_P) EV_THROW
2257{ 3152{
2258 time_update (EV_A_ 1e100); 3153 time_update (EV_A_ 1e100);
2259} 3154}
2260 3155
2261void 3156void
2262ev_suspend (EV_P) 3157ev_suspend (EV_P) EV_THROW
2263{ 3158{
2264 ev_now_update (EV_A); 3159 ev_now_update (EV_A);
2265} 3160}
2266 3161
2267void 3162void
2268ev_resume (EV_P) 3163ev_resume (EV_P) EV_THROW
2269{ 3164{
2270 ev_tstamp mn_prev = mn_now; 3165 ev_tstamp mn_prev = mn_now;
2271 3166
2272 ev_now_update (EV_A); 3167 ev_now_update (EV_A);
2273 timers_reschedule (EV_A_ mn_now - mn_prev); 3168 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2290inline_size void 3185inline_size void
2291wlist_del (WL *head, WL elem) 3186wlist_del (WL *head, WL elem)
2292{ 3187{
2293 while (*head) 3188 while (*head)
2294 { 3189 {
2295 if (*head == elem) 3190 if (expect_true (*head == elem))
2296 { 3191 {
2297 *head = elem->next; 3192 *head = elem->next;
2298 return; 3193 break;
2299 } 3194 }
2300 3195
2301 head = &(*head)->next; 3196 head = &(*head)->next;
2302 } 3197 }
2303} 3198}
… …
2312 w->pending = 0; 3207 w->pending = 0;
2313 } 3208 }
2314} 3209}
2315 3210
2316int 3211int
2317ev_clear_pending (EV_P_ void *w) 3212ev_clear_pending (EV_P_ void *w) EV_THROW
2318{ 3213{
2319 W w_ = (W)w; 3214 W w_ = (W)w;
2320 int pending = w_->pending; 3215 int pending = w_->pending;
2321 3216
2322 if (expect_true (pending)) 3217 if (expect_true (pending))
… …
2355} 3250}
2356 3251
2357/*****************************************************************************/ 3252/*****************************************************************************/
2358 3253
2359void noinline 3254void noinline
2360ev_io_start (EV_P_ ev_io *w) 3255ev_io_start (EV_P_ ev_io *w) EV_THROW
2361{ 3256{
2362 int fd = w->fd; 3257 int fd = w->fd;
2363 3258
2364 if (expect_false (ev_is_active (w))) 3259 if (expect_false (ev_is_active (w)))
2365 return; 3260 return;
2366 3261
2367 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3262 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2368 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3263 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2369 3264
2370 EV_FREQUENT_CHECK; 3265 EV_FREQUENT_CHECK;
2371 3266
2372 ev_start (EV_A_ (W)w, 1); 3267 ev_start (EV_A_ (W)w, 1);
2373 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3268 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2374 wlist_add (&anfds[fd].head, (WL)w); 3269 wlist_add (&anfds[fd].head, (WL)w);
2375 3270
3271 /* common bug, apparently */
3272 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3273
2376 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3274 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2377 w->events &= ~EV__IOFDSET; 3275 w->events &= ~EV__IOFDSET;
2378 3276
2379 EV_FREQUENT_CHECK; 3277 EV_FREQUENT_CHECK;
2380} 3278}
2381 3279
2382void noinline 3280void noinline
2383ev_io_stop (EV_P_ ev_io *w) 3281ev_io_stop (EV_P_ ev_io *w) EV_THROW
2384{ 3282{
2385 clear_pending (EV_A_ (W)w); 3283 clear_pending (EV_A_ (W)w);
2386 if (expect_false (!ev_is_active (w))) 3284 if (expect_false (!ev_is_active (w)))
2387 return; 3285 return;
2388 3286
… …
2391 EV_FREQUENT_CHECK; 3289 EV_FREQUENT_CHECK;
2392 3290
2393 wlist_del (&anfds[w->fd].head, (WL)w); 3291 wlist_del (&anfds[w->fd].head, (WL)w);
2394 ev_stop (EV_A_ (W)w); 3292 ev_stop (EV_A_ (W)w);
2395 3293
2396 fd_change (EV_A_ w->fd, 1); 3294 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2397 3295
2398 EV_FREQUENT_CHECK; 3296 EV_FREQUENT_CHECK;
2399} 3297}
2400 3298
2401void noinline 3299void noinline
2402ev_timer_start (EV_P_ ev_timer *w) 3300ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2403{ 3301{
2404 if (expect_false (ev_is_active (w))) 3302 if (expect_false (ev_is_active (w)))
2405 return; 3303 return;
2406 3304
2407 ev_at (w) += mn_now; 3305 ev_at (w) += mn_now;
… …
2421 3319
2422 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3320 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2423} 3321}
2424 3322
2425void noinline 3323void noinline
2426ev_timer_stop (EV_P_ ev_timer *w) 3324ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2427{ 3325{
2428 clear_pending (EV_A_ (W)w); 3326 clear_pending (EV_A_ (W)w);
2429 if (expect_false (!ev_is_active (w))) 3327 if (expect_false (!ev_is_active (w)))
2430 return; 3328 return;
2431 3329
… …
2443 timers [active] = timers [timercnt + HEAP0]; 3341 timers [active] = timers [timercnt + HEAP0];
2444 adjustheap (timers, timercnt, active); 3342 adjustheap (timers, timercnt, active);
2445 } 3343 }
2446 } 3344 }
2447 3345
2448 EV_FREQUENT_CHECK;
2449
2450 ev_at (w) -= mn_now; 3346 ev_at (w) -= mn_now;
2451 3347
2452 ev_stop (EV_A_ (W)w); 3348 ev_stop (EV_A_ (W)w);
3349
3350 EV_FREQUENT_CHECK;
2453} 3351}
2454 3352
2455void noinline 3353void noinline
2456ev_timer_again (EV_P_ ev_timer *w) 3354ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2457{ 3355{
2458 EV_FREQUENT_CHECK; 3356 EV_FREQUENT_CHECK;
3357
3358 clear_pending (EV_A_ (W)w);
2459 3359
2460 if (ev_is_active (w)) 3360 if (ev_is_active (w))
2461 { 3361 {
2462 if (w->repeat) 3362 if (w->repeat)
2463 { 3363 {
… …
2475 } 3375 }
2476 3376
2477 EV_FREQUENT_CHECK; 3377 EV_FREQUENT_CHECK;
2478} 3378}
2479 3379
3380ev_tstamp
3381ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3382{
3383 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3384}
3385
2480#if EV_PERIODIC_ENABLE 3386#if EV_PERIODIC_ENABLE
2481void noinline 3387void noinline
2482ev_periodic_start (EV_P_ ev_periodic *w) 3388ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2483{ 3389{
2484 if (expect_false (ev_is_active (w))) 3390 if (expect_false (ev_is_active (w)))
2485 return; 3391 return;
2486 3392
2487 if (w->reschedule_cb) 3393 if (w->reschedule_cb)
2488 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3394 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2489 else if (w->interval) 3395 else if (w->interval)
2490 { 3396 {
2491 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3397 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2492 /* this formula differs from the one in periodic_reify because we do not always round up */ 3398 periodic_recalc (EV_A_ w);
2493 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2494 } 3399 }
2495 else 3400 else
2496 ev_at (w) = w->offset; 3401 ev_at (w) = w->offset;
2497 3402
2498 EV_FREQUENT_CHECK; 3403 EV_FREQUENT_CHECK;
… …
2508 3413
2509 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3414 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2510} 3415}
2511 3416
2512void noinline 3417void noinline
2513ev_periodic_stop (EV_P_ ev_periodic *w) 3418ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2514{ 3419{
2515 clear_pending (EV_A_ (W)w); 3420 clear_pending (EV_A_ (W)w);
2516 if (expect_false (!ev_is_active (w))) 3421 if (expect_false (!ev_is_active (w)))
2517 return; 3422 return;
2518 3423
… …
2530 periodics [active] = periodics [periodiccnt + HEAP0]; 3435 periodics [active] = periodics [periodiccnt + HEAP0];
2531 adjustheap (periodics, periodiccnt, active); 3436 adjustheap (periodics, periodiccnt, active);
2532 } 3437 }
2533 } 3438 }
2534 3439
2535 EV_FREQUENT_CHECK;
2536
2537 ev_stop (EV_A_ (W)w); 3440 ev_stop (EV_A_ (W)w);
3441
3442 EV_FREQUENT_CHECK;
2538} 3443}
2539 3444
2540void noinline 3445void noinline
2541ev_periodic_again (EV_P_ ev_periodic *w) 3446ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2542{ 3447{
2543 /* TODO: use adjustheap and recalculation */ 3448 /* TODO: use adjustheap and recalculation */
2544 ev_periodic_stop (EV_A_ w); 3449 ev_periodic_stop (EV_A_ w);
2545 ev_periodic_start (EV_A_ w); 3450 ev_periodic_start (EV_A_ w);
2546} 3451}
… …
2548 3453
2549#ifndef SA_RESTART 3454#ifndef SA_RESTART
2550# define SA_RESTART 0 3455# define SA_RESTART 0
2551#endif 3456#endif
2552 3457
3458#if EV_SIGNAL_ENABLE
3459
2553void noinline 3460void noinline
2554ev_signal_start (EV_P_ ev_signal *w) 3461ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2555{ 3462{
2556#if EV_MULTIPLICITY
2557 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2558#endif
2559 if (expect_false (ev_is_active (w))) 3463 if (expect_false (ev_is_active (w)))
2560 return; 3464 return;
2561 3465
2562 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3466 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2563 3467
2564 evpipe_init (EV_A); 3468#if EV_MULTIPLICITY
3469 assert (("libev: a signal must not be attached to two different loops",
3470 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2565 3471
2566 EV_FREQUENT_CHECK; 3472 signals [w->signum - 1].loop = EV_A;
3473#endif
2567 3474
3475 EV_FREQUENT_CHECK;
3476
3477#if EV_USE_SIGNALFD
3478 if (sigfd == -2)
2568 { 3479 {
2569#ifndef _WIN32 3480 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2570 sigset_t full, prev; 3481 if (sigfd < 0 && errno == EINVAL)
2571 sigfillset (&full); 3482 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2572 sigprocmask (SIG_SETMASK, &full, &prev);
2573#endif
2574 3483
2575 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3484 if (sigfd >= 0)
3485 {
3486 fd_intern (sigfd); /* doing it twice will not hurt */
2576 3487
2577#ifndef _WIN32 3488 sigemptyset (&sigfd_set);
2578 sigprocmask (SIG_SETMASK, &prev, 0); 3489
2579#endif 3490 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3491 ev_set_priority (&sigfd_w, EV_MAXPRI);
3492 ev_io_start (EV_A_ &sigfd_w);
3493 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3494 }
2580 } 3495 }
3496
3497 if (sigfd >= 0)
3498 {
3499 /* TODO: check .head */
3500 sigaddset (&sigfd_set, w->signum);
3501 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3502
3503 signalfd (sigfd, &sigfd_set, 0);
3504 }
3505#endif
2581 3506
2582 ev_start (EV_A_ (W)w, 1); 3507 ev_start (EV_A_ (W)w, 1);
2583 wlist_add (&signals [w->signum - 1].head, (WL)w); 3508 wlist_add (&signals [w->signum - 1].head, (WL)w);
2584 3509
2585 if (!((WL)w)->next) 3510 if (!((WL)w)->next)
3511# if EV_USE_SIGNALFD
3512 if (sigfd < 0) /*TODO*/
3513# endif
2586 { 3514 {
2587#if _WIN32 3515# ifdef _WIN32
3516 evpipe_init (EV_A);
3517
2588 signal (w->signum, ev_sighandler); 3518 signal (w->signum, ev_sighandler);
2589#else 3519# else
2590 struct sigaction sa; 3520 struct sigaction sa;
3521
3522 evpipe_init (EV_A);
3523
2591 sa.sa_handler = ev_sighandler; 3524 sa.sa_handler = ev_sighandler;
2592 sigfillset (&sa.sa_mask); 3525 sigfillset (&sa.sa_mask);
2593 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3526 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2594 sigaction (w->signum, &sa, 0); 3527 sigaction (w->signum, &sa, 0);
3528
3529 if (origflags & EVFLAG_NOSIGMASK)
3530 {
3531 sigemptyset (&sa.sa_mask);
3532 sigaddset (&sa.sa_mask, w->signum);
3533 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3534 }
2595#endif 3535#endif
2596 } 3536 }
2597 3537
2598 EV_FREQUENT_CHECK; 3538 EV_FREQUENT_CHECK;
2599} 3539}
2600 3540
2601void noinline 3541void noinline
2602ev_signal_stop (EV_P_ ev_signal *w) 3542ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2603{ 3543{
2604 clear_pending (EV_A_ (W)w); 3544 clear_pending (EV_A_ (W)w);
2605 if (expect_false (!ev_is_active (w))) 3545 if (expect_false (!ev_is_active (w)))
2606 return; 3546 return;
2607 3547
… …
2609 3549
2610 wlist_del (&signals [w->signum - 1].head, (WL)w); 3550 wlist_del (&signals [w->signum - 1].head, (WL)w);
2611 ev_stop (EV_A_ (W)w); 3551 ev_stop (EV_A_ (W)w);
2612 3552
2613 if (!signals [w->signum - 1].head) 3553 if (!signals [w->signum - 1].head)
3554 {
3555#if EV_MULTIPLICITY
3556 signals [w->signum - 1].loop = 0; /* unattach from signal */
3557#endif
3558#if EV_USE_SIGNALFD
3559 if (sigfd >= 0)
3560 {
3561 sigset_t ss;
3562
3563 sigemptyset (&ss);
3564 sigaddset (&ss, w->signum);
3565 sigdelset (&sigfd_set, w->signum);
3566
3567 signalfd (sigfd, &sigfd_set, 0);
3568 sigprocmask (SIG_UNBLOCK, &ss, 0);
3569 }
3570 else
3571#endif
2614 signal (w->signum, SIG_DFL); 3572 signal (w->signum, SIG_DFL);
3573 }
2615 3574
2616 EV_FREQUENT_CHECK; 3575 EV_FREQUENT_CHECK;
2617} 3576}
3577
3578#endif
3579
3580#if EV_CHILD_ENABLE
2618 3581
2619void 3582void
2620ev_child_start (EV_P_ ev_child *w) 3583ev_child_start (EV_P_ ev_child *w) EV_THROW
2621{ 3584{
2622#if EV_MULTIPLICITY 3585#if EV_MULTIPLICITY
2623 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3586 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2624#endif 3587#endif
2625 if (expect_false (ev_is_active (w))) 3588 if (expect_false (ev_is_active (w)))
2626 return; 3589 return;
2627 3590
2628 EV_FREQUENT_CHECK; 3591 EV_FREQUENT_CHECK;
2629 3592
2630 ev_start (EV_A_ (W)w, 1); 3593 ev_start (EV_A_ (W)w, 1);
2631 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3594 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2632 3595
2633 EV_FREQUENT_CHECK; 3596 EV_FREQUENT_CHECK;
2634} 3597}
2635 3598
2636void 3599void
2637ev_child_stop (EV_P_ ev_child *w) 3600ev_child_stop (EV_P_ ev_child *w) EV_THROW
2638{ 3601{
2639 clear_pending (EV_A_ (W)w); 3602 clear_pending (EV_A_ (W)w);
2640 if (expect_false (!ev_is_active (w))) 3603 if (expect_false (!ev_is_active (w)))
2641 return; 3604 return;
2642 3605
2643 EV_FREQUENT_CHECK; 3606 EV_FREQUENT_CHECK;
2644 3607
2645 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3608 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2646 ev_stop (EV_A_ (W)w); 3609 ev_stop (EV_A_ (W)w);
2647 3610
2648 EV_FREQUENT_CHECK; 3611 EV_FREQUENT_CHECK;
2649} 3612}
3613
3614#endif
2650 3615
2651#if EV_STAT_ENABLE 3616#if EV_STAT_ENABLE
2652 3617
2653# ifdef _WIN32 3618# ifdef _WIN32
2654# undef lstat 3619# undef lstat
… …
2660#define MIN_STAT_INTERVAL 0.1074891 3625#define MIN_STAT_INTERVAL 0.1074891
2661 3626
2662static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3627static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2663 3628
2664#if EV_USE_INOTIFY 3629#if EV_USE_INOTIFY
2665# define EV_INOTIFY_BUFSIZE 8192 3630
3631/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3632# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2666 3633
2667static void noinline 3634static void noinline
2668infy_add (EV_P_ ev_stat *w) 3635infy_add (EV_P_ ev_stat *w)
2669{ 3636{
2670 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3637 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2671 3638
2672 if (w->wd < 0) 3639 if (w->wd >= 0)
3640 {
3641 struct statfs sfs;
3642
3643 /* now local changes will be tracked by inotify, but remote changes won't */
3644 /* unless the filesystem is known to be local, we therefore still poll */
3645 /* also do poll on <2.6.25, but with normal frequency */
3646
3647 if (!fs_2625)
3648 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3649 else if (!statfs (w->path, &sfs)
3650 && (sfs.f_type == 0x1373 /* devfs */
3651 || sfs.f_type == 0xEF53 /* ext2/3 */
3652 || sfs.f_type == 0x3153464a /* jfs */
3653 || sfs.f_type == 0x52654973 /* reiser3 */
3654 || sfs.f_type == 0x01021994 /* tempfs */
3655 || sfs.f_type == 0x58465342 /* xfs */))
3656 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3657 else
3658 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2673 { 3659 }
3660 else
3661 {
3662 /* can't use inotify, continue to stat */
2674 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3663 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2675 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2676 3664
2677 /* monitor some parent directory for speedup hints */ 3665 /* if path is not there, monitor some parent directory for speedup hints */
2678 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3666 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2679 /* but an efficiency issue only */ 3667 /* but an efficiency issue only */
2680 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3668 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2681 { 3669 {
2682 char path [4096]; 3670 char path [4096];
… …
2692 if (!pend || pend == path) 3680 if (!pend || pend == path)
2693 break; 3681 break;
2694 3682
2695 *pend = 0; 3683 *pend = 0;
2696 w->wd = inotify_add_watch (fs_fd, path, mask); 3684 w->wd = inotify_add_watch (fs_fd, path, mask);
2697 } 3685 }
2698 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3686 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2699 } 3687 }
2700 } 3688 }
2701 3689
2702 if (w->wd >= 0) 3690 if (w->wd >= 0)
2703 {
2704 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3691 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2705 3692
2706 /* now local changes will be tracked by inotify, but remote changes won't */ 3693 /* now re-arm timer, if required */
2707 /* unless the filesystem it known to be local, we therefore still poll */ 3694 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2708 /* also do poll on <2.6.25, but with normal frequency */
2709 struct statfs sfs;
2710
2711 if (fs_2625 && !statfs (w->path, &sfs))
2712 if (sfs.f_type == 0x1373 /* devfs */
2713 || sfs.f_type == 0xEF53 /* ext2/3 */
2714 || sfs.f_type == 0x3153464a /* jfs */
2715 || sfs.f_type == 0x52654973 /* reiser3 */
2716 || sfs.f_type == 0x01021994 /* tempfs */
2717 || sfs.f_type == 0x58465342 /* xfs */)
2718 return;
2719
2720 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2721 ev_timer_again (EV_A_ &w->timer); 3695 ev_timer_again (EV_A_ &w->timer);
2722 } 3696 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2723} 3697}
2724 3698
2725static void noinline 3699static void noinline
2726infy_del (EV_P_ ev_stat *w) 3700infy_del (EV_P_ ev_stat *w)
2727{ 3701{
… …
2730 3704
2731 if (wd < 0) 3705 if (wd < 0)
2732 return; 3706 return;
2733 3707
2734 w->wd = -2; 3708 w->wd = -2;
2735 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3709 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2736 wlist_del (&fs_hash [slot].head, (WL)w); 3710 wlist_del (&fs_hash [slot].head, (WL)w);
2737 3711
2738 /* remove this watcher, if others are watching it, they will rearm */ 3712 /* remove this watcher, if others are watching it, they will rearm */
2739 inotify_rm_watch (fs_fd, wd); 3713 inotify_rm_watch (fs_fd, wd);
2740} 3714}
… …
2742static void noinline 3716static void noinline
2743infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3717infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2744{ 3718{
2745 if (slot < 0) 3719 if (slot < 0)
2746 /* overflow, need to check for all hash slots */ 3720 /* overflow, need to check for all hash slots */
2747 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3721 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2748 infy_wd (EV_A_ slot, wd, ev); 3722 infy_wd (EV_A_ slot, wd, ev);
2749 else 3723 else
2750 { 3724 {
2751 WL w_; 3725 WL w_;
2752 3726
2753 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3727 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2754 { 3728 {
2755 ev_stat *w = (ev_stat *)w_; 3729 ev_stat *w = (ev_stat *)w_;
2756 w_ = w_->next; /* lets us remove this watcher and all before it */ 3730 w_ = w_->next; /* lets us remove this watcher and all before it */
2757 3731
2758 if (w->wd == wd || wd == -1) 3732 if (w->wd == wd || wd == -1)
2759 { 3733 {
2760 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3734 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2761 { 3735 {
2762 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3736 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2763 w->wd = -1; 3737 w->wd = -1;
2764 infy_add (EV_A_ w); /* re-add, no matter what */ 3738 infy_add (EV_A_ w); /* re-add, no matter what */
2765 } 3739 }
2766 3740
2767 stat_timer_cb (EV_A_ &w->timer, 0); 3741 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2772 3746
2773static void 3747static void
2774infy_cb (EV_P_ ev_io *w, int revents) 3748infy_cb (EV_P_ ev_io *w, int revents)
2775{ 3749{
2776 char buf [EV_INOTIFY_BUFSIZE]; 3750 char buf [EV_INOTIFY_BUFSIZE];
2777 struct inotify_event *ev = (struct inotify_event *)buf;
2778 int ofs; 3751 int ofs;
2779 int len = read (fs_fd, buf, sizeof (buf)); 3752 int len = read (fs_fd, buf, sizeof (buf));
2780 3753
2781 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3754 for (ofs = 0; ofs < len; )
3755 {
3756 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2782 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3757 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3758 ofs += sizeof (struct inotify_event) + ev->len;
3759 }
2783} 3760}
2784 3761
2785inline_size void 3762inline_size void ecb_cold
2786check_2625 (EV_P) 3763ev_check_2625 (EV_P)
2787{ 3764{
2788 /* kernels < 2.6.25 are borked 3765 /* kernels < 2.6.25 are borked
2789 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3766 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2790 */ 3767 */
2791 struct utsname buf; 3768 if (ev_linux_version () < 0x020619)
2792 int major, minor, micro;
2793
2794 if (uname (&buf))
2795 return; 3769 return;
2796 3770
2797 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2798 return;
2799
2800 if (major < 2
2801 || (major == 2 && minor < 6)
2802 || (major == 2 && minor == 6 && micro < 25))
2803 return;
2804
2805 fs_2625 = 1; 3771 fs_2625 = 1;
3772}
3773
3774inline_size int
3775infy_newfd (void)
3776{
3777#if defined IN_CLOEXEC && defined IN_NONBLOCK
3778 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3779 if (fd >= 0)
3780 return fd;
3781#endif
3782 return inotify_init ();
2806} 3783}
2807 3784
2808inline_size void 3785inline_size void
2809infy_init (EV_P) 3786infy_init (EV_P)
2810{ 3787{
2811 if (fs_fd != -2) 3788 if (fs_fd != -2)
2812 return; 3789 return;
2813 3790
2814 fs_fd = -1; 3791 fs_fd = -1;
2815 3792
2816 check_2625 (EV_A); 3793 ev_check_2625 (EV_A);
2817 3794
2818 fs_fd = inotify_init (); 3795 fs_fd = infy_newfd ();
2819 3796
2820 if (fs_fd >= 0) 3797 if (fs_fd >= 0)
2821 { 3798 {
3799 fd_intern (fs_fd);
2822 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3800 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2823 ev_set_priority (&fs_w, EV_MAXPRI); 3801 ev_set_priority (&fs_w, EV_MAXPRI);
2824 ev_io_start (EV_A_ &fs_w); 3802 ev_io_start (EV_A_ &fs_w);
3803 ev_unref (EV_A);
2825 } 3804 }
2826} 3805}
2827 3806
2828inline_size void 3807inline_size void
2829infy_fork (EV_P) 3808infy_fork (EV_P)
… …
2831 int slot; 3810 int slot;
2832 3811
2833 if (fs_fd < 0) 3812 if (fs_fd < 0)
2834 return; 3813 return;
2835 3814
3815 ev_ref (EV_A);
3816 ev_io_stop (EV_A_ &fs_w);
2836 close (fs_fd); 3817 close (fs_fd);
2837 fs_fd = inotify_init (); 3818 fs_fd = infy_newfd ();
2838 3819
3820 if (fs_fd >= 0)
3821 {
3822 fd_intern (fs_fd);
3823 ev_io_set (&fs_w, fs_fd, EV_READ);
3824 ev_io_start (EV_A_ &fs_w);
3825 ev_unref (EV_A);
3826 }
3827
2839 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3828 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2840 { 3829 {
2841 WL w_ = fs_hash [slot].head; 3830 WL w_ = fs_hash [slot].head;
2842 fs_hash [slot].head = 0; 3831 fs_hash [slot].head = 0;
2843 3832
2844 while (w_) 3833 while (w_)
… …
2849 w->wd = -1; 3838 w->wd = -1;
2850 3839
2851 if (fs_fd >= 0) 3840 if (fs_fd >= 0)
2852 infy_add (EV_A_ w); /* re-add, no matter what */ 3841 infy_add (EV_A_ w); /* re-add, no matter what */
2853 else 3842 else
3843 {
3844 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3845 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2854 ev_timer_again (EV_A_ &w->timer); 3846 ev_timer_again (EV_A_ &w->timer);
3847 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3848 }
2855 } 3849 }
2856 } 3850 }
2857} 3851}
2858 3852
2859#endif 3853#endif
… …
2863#else 3857#else
2864# define EV_LSTAT(p,b) lstat (p, b) 3858# define EV_LSTAT(p,b) lstat (p, b)
2865#endif 3859#endif
2866 3860
2867void 3861void
2868ev_stat_stat (EV_P_ ev_stat *w) 3862ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2869{ 3863{
2870 if (lstat (w->path, &w->attr) < 0) 3864 if (lstat (w->path, &w->attr) < 0)
2871 w->attr.st_nlink = 0; 3865 w->attr.st_nlink = 0;
2872 else if (!w->attr.st_nlink) 3866 else if (!w->attr.st_nlink)
2873 w->attr.st_nlink = 1; 3867 w->attr.st_nlink = 1;
… …
2876static void noinline 3870static void noinline
2877stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3871stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2878{ 3872{
2879 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3873 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2880 3874
2881 /* we copy this here each the time so that */ 3875 ev_statdata prev = w->attr;
2882 /* prev has the old value when the callback gets invoked */
2883 w->prev = w->attr;
2884 ev_stat_stat (EV_A_ w); 3876 ev_stat_stat (EV_A_ w);
2885 3877
2886 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3878 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2887 if ( 3879 if (
2888 w->prev.st_dev != w->attr.st_dev 3880 prev.st_dev != w->attr.st_dev
2889 || w->prev.st_ino != w->attr.st_ino 3881 || prev.st_ino != w->attr.st_ino
2890 || w->prev.st_mode != w->attr.st_mode 3882 || prev.st_mode != w->attr.st_mode
2891 || w->prev.st_nlink != w->attr.st_nlink 3883 || prev.st_nlink != w->attr.st_nlink
2892 || w->prev.st_uid != w->attr.st_uid 3884 || prev.st_uid != w->attr.st_uid
2893 || w->prev.st_gid != w->attr.st_gid 3885 || prev.st_gid != w->attr.st_gid
2894 || w->prev.st_rdev != w->attr.st_rdev 3886 || prev.st_rdev != w->attr.st_rdev
2895 || w->prev.st_size != w->attr.st_size 3887 || prev.st_size != w->attr.st_size
2896 || w->prev.st_atime != w->attr.st_atime 3888 || prev.st_atime != w->attr.st_atime
2897 || w->prev.st_mtime != w->attr.st_mtime 3889 || prev.st_mtime != w->attr.st_mtime
2898 || w->prev.st_ctime != w->attr.st_ctime 3890 || prev.st_ctime != w->attr.st_ctime
2899 ) { 3891 ) {
3892 /* we only update w->prev on actual differences */
3893 /* in case we test more often than invoke the callback, */
3894 /* to ensure that prev is always different to attr */
3895 w->prev = prev;
3896
2900 #if EV_USE_INOTIFY 3897 #if EV_USE_INOTIFY
2901 if (fs_fd >= 0) 3898 if (fs_fd >= 0)
2902 { 3899 {
2903 infy_del (EV_A_ w); 3900 infy_del (EV_A_ w);
2904 infy_add (EV_A_ w); 3901 infy_add (EV_A_ w);
… …
2909 ev_feed_event (EV_A_ w, EV_STAT); 3906 ev_feed_event (EV_A_ w, EV_STAT);
2910 } 3907 }
2911} 3908}
2912 3909
2913void 3910void
2914ev_stat_start (EV_P_ ev_stat *w) 3911ev_stat_start (EV_P_ ev_stat *w) EV_THROW
2915{ 3912{
2916 if (expect_false (ev_is_active (w))) 3913 if (expect_false (ev_is_active (w)))
2917 return; 3914 return;
2918 3915
2919 ev_stat_stat (EV_A_ w); 3916 ev_stat_stat (EV_A_ w);
… …
2929 3926
2930 if (fs_fd >= 0) 3927 if (fs_fd >= 0)
2931 infy_add (EV_A_ w); 3928 infy_add (EV_A_ w);
2932 else 3929 else
2933#endif 3930#endif
3931 {
2934 ev_timer_again (EV_A_ &w->timer); 3932 ev_timer_again (EV_A_ &w->timer);
3933 ev_unref (EV_A);
3934 }
2935 3935
2936 ev_start (EV_A_ (W)w, 1); 3936 ev_start (EV_A_ (W)w, 1);
2937 3937
2938 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
2939} 3939}
2940 3940
2941void 3941void
2942ev_stat_stop (EV_P_ ev_stat *w) 3942ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
2943{ 3943{
2944 clear_pending (EV_A_ (W)w); 3944 clear_pending (EV_A_ (W)w);
2945 if (expect_false (!ev_is_active (w))) 3945 if (expect_false (!ev_is_active (w)))
2946 return; 3946 return;
2947 3947
2948 EV_FREQUENT_CHECK; 3948 EV_FREQUENT_CHECK;
2949 3949
2950#if EV_USE_INOTIFY 3950#if EV_USE_INOTIFY
2951 infy_del (EV_A_ w); 3951 infy_del (EV_A_ w);
2952#endif 3952#endif
3953
3954 if (ev_is_active (&w->timer))
3955 {
3956 ev_ref (EV_A);
2953 ev_timer_stop (EV_A_ &w->timer); 3957 ev_timer_stop (EV_A_ &w->timer);
3958 }
2954 3959
2955 ev_stop (EV_A_ (W)w); 3960 ev_stop (EV_A_ (W)w);
2956 3961
2957 EV_FREQUENT_CHECK; 3962 EV_FREQUENT_CHECK;
2958} 3963}
2959#endif 3964#endif
2960 3965
2961#if EV_IDLE_ENABLE 3966#if EV_IDLE_ENABLE
2962void 3967void
2963ev_idle_start (EV_P_ ev_idle *w) 3968ev_idle_start (EV_P_ ev_idle *w) EV_THROW
2964{ 3969{
2965 if (expect_false (ev_is_active (w))) 3970 if (expect_false (ev_is_active (w)))
2966 return; 3971 return;
2967 3972
2968 pri_adjust (EV_A_ (W)w); 3973 pri_adjust (EV_A_ (W)w);
… …
2981 3986
2982 EV_FREQUENT_CHECK; 3987 EV_FREQUENT_CHECK;
2983} 3988}
2984 3989
2985void 3990void
2986ev_idle_stop (EV_P_ ev_idle *w) 3991ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
2987{ 3992{
2988 clear_pending (EV_A_ (W)w); 3993 clear_pending (EV_A_ (W)w);
2989 if (expect_false (!ev_is_active (w))) 3994 if (expect_false (!ev_is_active (w)))
2990 return; 3995 return;
2991 3996
… …
3003 4008
3004 EV_FREQUENT_CHECK; 4009 EV_FREQUENT_CHECK;
3005} 4010}
3006#endif 4011#endif
3007 4012
4013#if EV_PREPARE_ENABLE
3008void 4014void
3009ev_prepare_start (EV_P_ ev_prepare *w) 4015ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3010{ 4016{
3011 if (expect_false (ev_is_active (w))) 4017 if (expect_false (ev_is_active (w)))
3012 return; 4018 return;
3013 4019
3014 EV_FREQUENT_CHECK; 4020 EV_FREQUENT_CHECK;
… …
3019 4025
3020 EV_FREQUENT_CHECK; 4026 EV_FREQUENT_CHECK;
3021} 4027}
3022 4028
3023void 4029void
3024ev_prepare_stop (EV_P_ ev_prepare *w) 4030ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3025{ 4031{
3026 clear_pending (EV_A_ (W)w); 4032 clear_pending (EV_A_ (W)w);
3027 if (expect_false (!ev_is_active (w))) 4033 if (expect_false (!ev_is_active (w)))
3028 return; 4034 return;
3029 4035
… …
3038 4044
3039 ev_stop (EV_A_ (W)w); 4045 ev_stop (EV_A_ (W)w);
3040 4046
3041 EV_FREQUENT_CHECK; 4047 EV_FREQUENT_CHECK;
3042} 4048}
4049#endif
3043 4050
4051#if EV_CHECK_ENABLE
3044void 4052void
3045ev_check_start (EV_P_ ev_check *w) 4053ev_check_start (EV_P_ ev_check *w) EV_THROW
3046{ 4054{
3047 if (expect_false (ev_is_active (w))) 4055 if (expect_false (ev_is_active (w)))
3048 return; 4056 return;
3049 4057
3050 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
… …
3055 4063
3056 EV_FREQUENT_CHECK; 4064 EV_FREQUENT_CHECK;
3057} 4065}
3058 4066
3059void 4067void
3060ev_check_stop (EV_P_ ev_check *w) 4068ev_check_stop (EV_P_ ev_check *w) EV_THROW
3061{ 4069{
3062 clear_pending (EV_A_ (W)w); 4070 clear_pending (EV_A_ (W)w);
3063 if (expect_false (!ev_is_active (w))) 4071 if (expect_false (!ev_is_active (w)))
3064 return; 4072 return;
3065 4073
… …
3074 4082
3075 ev_stop (EV_A_ (W)w); 4083 ev_stop (EV_A_ (W)w);
3076 4084
3077 EV_FREQUENT_CHECK; 4085 EV_FREQUENT_CHECK;
3078} 4086}
4087#endif
3079 4088
3080#if EV_EMBED_ENABLE 4089#if EV_EMBED_ENABLE
3081void noinline 4090void noinline
3082ev_embed_sweep (EV_P_ ev_embed *w) 4091ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3083{ 4092{
3084 ev_loop (w->other, EVLOOP_NONBLOCK); 4093 ev_run (w->other, EVRUN_NOWAIT);
3085} 4094}
3086 4095
3087static void 4096static void
3088embed_io_cb (EV_P_ ev_io *io, int revents) 4097embed_io_cb (EV_P_ ev_io *io, int revents)
3089{ 4098{
3090 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4099 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3091 4100
3092 if (ev_cb (w)) 4101 if (ev_cb (w))
3093 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4102 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3094 else 4103 else
3095 ev_loop (w->other, EVLOOP_NONBLOCK); 4104 ev_run (w->other, EVRUN_NOWAIT);
3096} 4105}
3097 4106
3098static void 4107static void
3099embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4108embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3100{ 4109{
3101 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4110 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3102 4111
3103 { 4112 {
3104 struct ev_loop *loop = w->other; 4113 EV_P = w->other;
3105 4114
3106 while (fdchangecnt) 4115 while (fdchangecnt)
3107 { 4116 {
3108 fd_reify (EV_A); 4117 fd_reify (EV_A);
3109 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4118 ev_run (EV_A_ EVRUN_NOWAIT);
3110 } 4119 }
3111 } 4120 }
3112} 4121}
3113 4122
3114static void 4123static void
… …
3117 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 4126 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3118 4127
3119 ev_embed_stop (EV_A_ w); 4128 ev_embed_stop (EV_A_ w);
3120 4129
3121 { 4130 {
3122 struct ev_loop *loop = w->other; 4131 EV_P = w->other;
3123 4132
3124 ev_loop_fork (EV_A); 4133 ev_loop_fork (EV_A);
3125 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4134 ev_run (EV_A_ EVRUN_NOWAIT);
3126 } 4135 }
3127 4136
3128 ev_embed_start (EV_A_ w); 4137 ev_embed_start (EV_A_ w);
3129} 4138}
3130 4139
… …
3135 ev_idle_stop (EV_A_ idle); 4144 ev_idle_stop (EV_A_ idle);
3136} 4145}
3137#endif 4146#endif
3138 4147
3139void 4148void
3140ev_embed_start (EV_P_ ev_embed *w) 4149ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3141{ 4150{
3142 if (expect_false (ev_is_active (w))) 4151 if (expect_false (ev_is_active (w)))
3143 return; 4152 return;
3144 4153
3145 { 4154 {
3146 struct ev_loop *loop = w->other; 4155 EV_P = w->other;
3147 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4156 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3148 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 4157 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3149 } 4158 }
3150 4159
3151 EV_FREQUENT_CHECK; 4160 EV_FREQUENT_CHECK;
… …
3166 4175
3167 EV_FREQUENT_CHECK; 4176 EV_FREQUENT_CHECK;
3168} 4177}
3169 4178
3170void 4179void
3171ev_embed_stop (EV_P_ ev_embed *w) 4180ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3172{ 4181{
3173 clear_pending (EV_A_ (W)w); 4182 clear_pending (EV_A_ (W)w);
3174 if (expect_false (!ev_is_active (w))) 4183 if (expect_false (!ev_is_active (w)))
3175 return; 4184 return;
3176 4185
… …
3178 4187
3179 ev_io_stop (EV_A_ &w->io); 4188 ev_io_stop (EV_A_ &w->io);
3180 ev_prepare_stop (EV_A_ &w->prepare); 4189 ev_prepare_stop (EV_A_ &w->prepare);
3181 ev_fork_stop (EV_A_ &w->fork); 4190 ev_fork_stop (EV_A_ &w->fork);
3182 4191
4192 ev_stop (EV_A_ (W)w);
4193
3183 EV_FREQUENT_CHECK; 4194 EV_FREQUENT_CHECK;
3184} 4195}
3185#endif 4196#endif
3186 4197
3187#if EV_FORK_ENABLE 4198#if EV_FORK_ENABLE
3188void 4199void
3189ev_fork_start (EV_P_ ev_fork *w) 4200ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3190{ 4201{
3191 if (expect_false (ev_is_active (w))) 4202 if (expect_false (ev_is_active (w)))
3192 return; 4203 return;
3193 4204
3194 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
… …
3199 4210
3200 EV_FREQUENT_CHECK; 4211 EV_FREQUENT_CHECK;
3201} 4212}
3202 4213
3203void 4214void
3204ev_fork_stop (EV_P_ ev_fork *w) 4215ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3205{ 4216{
3206 clear_pending (EV_A_ (W)w); 4217 clear_pending (EV_A_ (W)w);
3207 if (expect_false (!ev_is_active (w))) 4218 if (expect_false (!ev_is_active (w)))
3208 return; 4219 return;
3209 4220
… …
3220 4231
3221 EV_FREQUENT_CHECK; 4232 EV_FREQUENT_CHECK;
3222} 4233}
3223#endif 4234#endif
3224 4235
4236#if EV_CLEANUP_ENABLE
4237void
4238ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4239{
4240 if (expect_false (ev_is_active (w)))
4241 return;
4242
4243 EV_FREQUENT_CHECK;
4244
4245 ev_start (EV_A_ (W)w, ++cleanupcnt);
4246 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4247 cleanups [cleanupcnt - 1] = w;
4248
4249 /* cleanup watchers should never keep a refcount on the loop */
4250 ev_unref (EV_A);
4251 EV_FREQUENT_CHECK;
4252}
4253
4254void
4255ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4256{
4257 clear_pending (EV_A_ (W)w);
4258 if (expect_false (!ev_is_active (w)))
4259 return;
4260
4261 EV_FREQUENT_CHECK;
4262 ev_ref (EV_A);
4263
4264 {
4265 int active = ev_active (w);
4266
4267 cleanups [active - 1] = cleanups [--cleanupcnt];
4268 ev_active (cleanups [active - 1]) = active;
4269 }
4270
4271 ev_stop (EV_A_ (W)w);
4272
4273 EV_FREQUENT_CHECK;
4274}
4275#endif
4276
3225#if EV_ASYNC_ENABLE 4277#if EV_ASYNC_ENABLE
3226void 4278void
3227ev_async_start (EV_P_ ev_async *w) 4279ev_async_start (EV_P_ ev_async *w) EV_THROW
3228{ 4280{
3229 if (expect_false (ev_is_active (w))) 4281 if (expect_false (ev_is_active (w)))
3230 return; 4282 return;
4283
4284 w->sent = 0;
3231 4285
3232 evpipe_init (EV_A); 4286 evpipe_init (EV_A);
3233 4287
3234 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3235 4289
… …
3239 4293
3240 EV_FREQUENT_CHECK; 4294 EV_FREQUENT_CHECK;
3241} 4295}
3242 4296
3243void 4297void
3244ev_async_stop (EV_P_ ev_async *w) 4298ev_async_stop (EV_P_ ev_async *w) EV_THROW
3245{ 4299{
3246 clear_pending (EV_A_ (W)w); 4300 clear_pending (EV_A_ (W)w);
3247 if (expect_false (!ev_is_active (w))) 4301 if (expect_false (!ev_is_active (w)))
3248 return; 4302 return;
3249 4303
… …
3260 4314
3261 EV_FREQUENT_CHECK; 4315 EV_FREQUENT_CHECK;
3262} 4316}
3263 4317
3264void 4318void
3265ev_async_send (EV_P_ ev_async *w) 4319ev_async_send (EV_P_ ev_async *w) EV_THROW
3266{ 4320{
3267 w->sent = 1; 4321 w->sent = 1;
3268 evpipe_write (EV_A_ &gotasync); 4322 evpipe_write (EV_A_ &async_pending);
3269} 4323}
3270#endif 4324#endif
3271 4325
3272/*****************************************************************************/ 4326/*****************************************************************************/
3273 4327
… …
3307 4361
3308 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4362 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3309} 4363}
3310 4364
3311void 4365void
3312ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4366ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3313{ 4367{
3314 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4368 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3315 4369
3316 if (expect_false (!once)) 4370 if (expect_false (!once))
3317 { 4371 {
3318 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4372 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3319 return; 4373 return;
3320 } 4374 }
3321 4375
3322 once->cb = cb; 4376 once->cb = cb;
3323 once->arg = arg; 4377 once->arg = arg;
… …
3338} 4392}
3339 4393
3340/*****************************************************************************/ 4394/*****************************************************************************/
3341 4395
3342#if EV_WALK_ENABLE 4396#if EV_WALK_ENABLE
3343void 4397void ecb_cold
3344ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4398ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3345{ 4399{
3346 int i, j; 4400 int i, j;
3347 ev_watcher_list *wl, *wn; 4401 ev_watcher_list *wl, *wn;
3348 4402
3349 if (types & (EV_IO | EV_EMBED)) 4403 if (types & (EV_IO | EV_EMBED))
… …
3392 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4446 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3393#endif 4447#endif
3394 4448
3395#if EV_IDLE_ENABLE 4449#if EV_IDLE_ENABLE
3396 if (types & EV_IDLE) 4450 if (types & EV_IDLE)
3397 for (j = NUMPRI; i--; ) 4451 for (j = NUMPRI; j--; )
3398 for (i = idlecnt [j]; i--; ) 4452 for (i = idlecnt [j]; i--; )
3399 cb (EV_A_ EV_IDLE, idles [j][i]); 4453 cb (EV_A_ EV_IDLE, idles [j][i]);
3400#endif 4454#endif
3401 4455
3402#if EV_FORK_ENABLE 4456#if EV_FORK_ENABLE
… …
3410 if (types & EV_ASYNC) 4464 if (types & EV_ASYNC)
3411 for (i = asynccnt; i--; ) 4465 for (i = asynccnt; i--; )
3412 cb (EV_A_ EV_ASYNC, asyncs [i]); 4466 cb (EV_A_ EV_ASYNC, asyncs [i]);
3413#endif 4467#endif
3414 4468
4469#if EV_PREPARE_ENABLE
3415 if (types & EV_PREPARE) 4470 if (types & EV_PREPARE)
3416 for (i = preparecnt; i--; ) 4471 for (i = preparecnt; i--; )
3417#if EV_EMBED_ENABLE 4472# if EV_EMBED_ENABLE
3418 if (ev_cb (prepares [i]) != embed_prepare_cb) 4473 if (ev_cb (prepares [i]) != embed_prepare_cb)
3419#endif 4474# endif
3420 cb (EV_A_ EV_PREPARE, prepares [i]); 4475 cb (EV_A_ EV_PREPARE, prepares [i]);
4476#endif
3421 4477
4478#if EV_CHECK_ENABLE
3422 if (types & EV_CHECK) 4479 if (types & EV_CHECK)
3423 for (i = checkcnt; i--; ) 4480 for (i = checkcnt; i--; )
3424 cb (EV_A_ EV_CHECK, checks [i]); 4481 cb (EV_A_ EV_CHECK, checks [i]);
4482#endif
3425 4483
4484#if EV_SIGNAL_ENABLE
3426 if (types & EV_SIGNAL) 4485 if (types & EV_SIGNAL)
3427 for (i = 0; i < signalmax; ++i) 4486 for (i = 0; i < EV_NSIG - 1; ++i)
3428 for (wl = signals [i].head; wl; ) 4487 for (wl = signals [i].head; wl; )
3429 { 4488 {
3430 wn = wl->next; 4489 wn = wl->next;
3431 cb (EV_A_ EV_SIGNAL, wl); 4490 cb (EV_A_ EV_SIGNAL, wl);
3432 wl = wn; 4491 wl = wn;
3433 } 4492 }
4493#endif
3434 4494
4495#if EV_CHILD_ENABLE
3435 if (types & EV_CHILD) 4496 if (types & EV_CHILD)
3436 for (i = EV_PID_HASHSIZE; i--; ) 4497 for (i = (EV_PID_HASHSIZE); i--; )
3437 for (wl = childs [i]; wl; ) 4498 for (wl = childs [i]; wl; )
3438 { 4499 {
3439 wn = wl->next; 4500 wn = wl->next;
3440 cb (EV_A_ EV_CHILD, wl); 4501 cb (EV_A_ EV_CHILD, wl);
3441 wl = wn; 4502 wl = wn;
3442 } 4503 }
4504#endif
3443/* EV_STAT 0x00001000 /* stat data changed */ 4505/* EV_STAT 0x00001000 /* stat data changed */
3444/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4506/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3445} 4507}
3446#endif 4508#endif
3447 4509
3448#if EV_MULTIPLICITY 4510#if EV_MULTIPLICITY
3449 #include "ev_wrap.h" 4511 #include "ev_wrap.h"
3450#endif 4512#endif
3451 4513
3452#ifdef __cplusplus
3453}
3454#endif
3455

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