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Comparing libev/ev.c (file contents):
Revision 1.274 by root, Thu Nov 20 00:35:10 2008 UTC vs.
Revision 1.431 by root, Wed May 9 16:51:33 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 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
64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0
62# endif 66# endif
63 67
64# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
65# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
66# define EV_USE_MONOTONIC 1 70# define EV_USE_MONOTONIC 1
67# endif 71# endif
68# ifndef EV_USE_REALTIME 72# ifndef EV_USE_REALTIME
69# define EV_USE_REALTIME 1 73# define EV_USE_REALTIME 0
70# endif 74# endif
71# else 75# else
72# ifndef EV_USE_MONOTONIC 76# ifndef EV_USE_MONOTONIC
73# define EV_USE_MONOTONIC 0 77# define EV_USE_MONOTONIC 0
74# endif 78# endif
75# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
76# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
77# endif 81# endif
78# endif 82# endif
79 83
84# if HAVE_NANOSLEEP
80# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
81# if HAVE_NANOSLEEP
82# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
83# else 88# else
89# undef EV_USE_NANOSLEEP
84# 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
85# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
86# endif 100# endif
87 101
102# if HAVE_POLL && HAVE_POLL_H
88# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
89# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
90# define EV_USE_SELECT 1
91# else
92# define EV_USE_SELECT 0
93# endif 105# endif
94# endif
95
96# ifndef EV_USE_POLL
97# if HAVE_POLL && HAVE_POLL_H
98# define EV_USE_POLL 1
99# else 106# else
107# undef EV_USE_POLL
100# define EV_USE_POLL 0 108# define EV_USE_POLL 0
101# endif
102# endif 109# endif
103 110
104# ifndef EV_USE_EPOLL
105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
106# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
107# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
108# define EV_USE_EPOLL 0
109# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
110# endif 118# endif
111 119
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
112# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
113# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
114# define EV_USE_KQUEUE 1
115# else
116# define EV_USE_KQUEUE 0
117# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
118# endif 127# endif
119 128
120# ifndef EV_USE_PORT
121# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
122# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
123# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
124# define EV_USE_PORT 0
125# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
126# endif 136# endif
127 137
128# ifndef EV_USE_INOTIFY
129# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
130# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
131# else
132# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
133# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
134# endif 145# endif
135 146
147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
136# ifndef EV_USE_EVENTFD 148# ifndef EV_USE_SIGNALFD
137# if HAVE_EVENTFD 149# define EV_USE_SIGNALFD EV_FEATURE_OS
138# define EV_USE_EVENTFD 1
139# else
140# define EV_USE_EVENTFD 0
141# 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
142# endif 163# endif
143 164
144#endif 165#endif
145 166
146#include <math.h>
147#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
148#include <fcntl.h> 169#include <fcntl.h>
149#include <stddef.h> 170#include <stddef.h>
150 171
151#include <stdio.h> 172#include <stdio.h>
152 173
153#include <assert.h> 174#include <assert.h>
154#include <errno.h> 175#include <errno.h>
155#include <sys/types.h> 176#include <sys/types.h>
156#include <time.h> 177#include <time.h>
178#include <limits.h>
157 179
158#include <signal.h> 180#include <signal.h>
159 181
160#ifdef EV_H 182#ifdef EV_H
161# include EV_H 183# include EV_H
162#else 184#else
163# 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
164#endif 197#endif
165 198
166#ifndef _WIN32 199#ifndef _WIN32
167# include <sys/time.h> 200# include <sys/time.h>
168# include <sys/wait.h> 201# include <sys/wait.h>
169# include <unistd.h> 202# include <unistd.h>
170#else 203#else
171# include <io.h> 204# include <io.h>
172# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
173# include <windows.h> 207# include <windows.h>
174# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
175# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
176# endif 210# endif
211# undef EV_AVOID_STDIO
177#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
178 221
179/* 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
180 255
181#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
182# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
183# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
184# else 259# else
185# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
186# endif 261# endif
187#endif 262#endif
188 263
189#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
190# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
191# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
192# else 267# else
193# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
194# endif 269# endif
195#endif 270#endif
196 271
197#ifndef EV_USE_REALTIME 272#ifndef EV_USE_REALTIME
198# define EV_USE_REALTIME 0 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
199#endif 274#endif
200 275
201#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
202# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
203# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
204# else 279# else
205# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
206# endif 281# endif
207#endif 282#endif
208 283
209#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
210# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
211#endif 286#endif
212 287
213#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
214# ifdef _WIN32 289# ifdef _WIN32
215# define EV_USE_POLL 0 290# define EV_USE_POLL 0
216# else 291# else
217# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
218# endif 293# endif
219#endif 294#endif
220 295
221#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
222# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
223# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
224# else 299# else
225# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
226# endif 301# endif
227#endif 302#endif
228 303
… …
234# define EV_USE_PORT 0 309# define EV_USE_PORT 0
235#endif 310#endif
236 311
237#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
238# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
239# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
240# else 315# else
241# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
242# endif 317# endif
243#endif 318#endif
244 319
245#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
246# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
247# define EV_PID_HASHSIZE 1
248# else
249# define EV_PID_HASHSIZE 16
250# endif
251#endif 322#endif
252 323
253#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
254# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
255# define EV_INOTIFY_HASHSIZE 1
256# else
257# define EV_INOTIFY_HASHSIZE 16
258# endif
259#endif 326#endif
260 327
261#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
263# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
264# else 331# else
265# 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
266# endif 341# endif
267#endif 342#endif
268 343
269#if 0 /* debugging */ 344#if 0 /* debugging */
270# define EV_VERIFY 3 345# define EV_VERIFY 3
271# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
272# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
273#endif 348#endif
274 349
275#ifndef EV_VERIFY 350#ifndef EV_VERIFY
276# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
277#endif 352#endif
278 353
279#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
280# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
281#endif 356#endif
282 357
283#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
284# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif
361
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL
365# include <sys/syscall.h>
366# ifdef SYS_clock_gettime
367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
368# undef EV_USE_MONOTONIC
369# define EV_USE_MONOTONIC 1
370# else
371# undef EV_USE_CLOCK_SYSCALL
372# define EV_USE_CLOCK_SYSCALL 0
373# endif
285#endif 374#endif
286 375
287/* 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 */
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
288 383
289#ifndef CLOCK_MONOTONIC 384#ifndef CLOCK_MONOTONIC
290# undef EV_USE_MONOTONIC 385# undef EV_USE_MONOTONIC
291# define EV_USE_MONOTONIC 0 386# define EV_USE_MONOTONIC 0
292#endif 387#endif
… …
300# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
301# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
302#endif 397#endif
303 398
304#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
305# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
306# include <sys/select.h> 402# include <sys/select.h>
307# endif 403# endif
308#endif 404#endif
309 405
310#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
311# include <sys/utsname.h>
312# include <sys/statfs.h> 407# include <sys/statfs.h>
313# include <sys/inotify.h> 408# include <sys/inotify.h>
314/* 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 */
315# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
316# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
318# endif 413# endif
319#endif 414#endif
320 415
321#if EV_SELECT_IS_WINSOCKET
322# include <winsock.h>
323#endif
324
325/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
326/* which makes programs even slower. might work on other unices, too. */
327#if EV_USE_CLOCK_SYSCALL
328# include <syscall.h>
329# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
330# undef EV_USE_MONOTONIC
331# define EV_USE_MONOTONIC 1
332#endif
333
334#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
335/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336# include <stdint.h> 418# include <stdint.h>
337# ifdef __cplusplus 419# ifndef EFD_NONBLOCK
338extern "C" { 420# define EFD_NONBLOCK O_NONBLOCK
339# endif 421# endif
340int eventfd (unsigned int initval, int flags); 422# ifndef EFD_CLOEXEC
341# ifdef __cplusplus 423# ifdef O_CLOEXEC
342} 424# define EFD_CLOEXEC O_CLOEXEC
425# else
426# define EFD_CLOEXEC 02000000
427# endif
343# endif 428# endif
429EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
430#endif
431
432#if EV_USE_SIGNALFD
433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
434# include <stdint.h>
435# ifndef SFD_NONBLOCK
436# define SFD_NONBLOCK O_NONBLOCK
437# endif
438# ifndef SFD_CLOEXEC
439# ifdef O_CLOEXEC
440# define SFD_CLOEXEC O_CLOEXEC
441# else
442# define SFD_CLOEXEC 02000000
443# endif
444# endif
445EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
446
447struct signalfd_siginfo
448{
449 uint32_t ssi_signo;
450 char pad[128 - sizeof (uint32_t)];
451};
344#endif 452#endif
345 453
346/**/ 454/**/
347 455
348#if EV_VERIFY >= 3 456#if EV_VERIFY >= 3
349# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 457# define EV_FREQUENT_CHECK ev_verify (EV_A)
350#else 458#else
351# define EV_FREQUENT_CHECK do { } while (0) 459# define EV_FREQUENT_CHECK do { } while (0)
352#endif 460#endif
353 461
354/* 462/*
355 * This is used to avoid floating point rounding problems. 463 * This is used to work around floating point rounding problems.
356 * It is added to ev_rt_now when scheduling periodics
357 * to ensure progress, time-wise, even when rounding
358 * errors are against us.
359 * This value is good at least till the year 4000. 464 * This value is good at least till the year 4000.
360 * Better solutions welcome.
361 */ 465 */
362#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
363 468
364#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
365#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
366/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
367 471
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
474
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */
477/*
478 * libecb - http://software.schmorp.de/pkg/libecb
479 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved.
483 *
484 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met:
486 *
487 * 1. Redistributions of source code must retain the above copyright notice,
488 * this list of conditions and the following disclaimer.
489 *
490 * 2. Redistributions in binary form must reproduce the above copyright
491 * notice, this list of conditions and the following disclaimer in the
492 * documentation and/or other materials provided with the distribution.
493 *
494 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
495 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
496 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
497 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
498 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE.
504 */
505
506#ifndef ECB_H
507#define ECB_H
508
509#ifdef _WIN32
510 typedef signed char int8_t;
511 typedef unsigned char uint8_t;
512 typedef signed short int16_t;
513 typedef unsigned short uint16_t;
514 typedef signed int int32_t;
515 typedef unsigned int uint32_t;
368#if __GNUC__ >= 4 516 #if __GNUC__
369# define expect(expr,value) __builtin_expect ((expr),(value)) 517 typedef signed long long int64_t;
370# define noinline __attribute__ ((noinline)) 518 typedef unsigned long long uint64_t;
519 #else /* _MSC_VER || __BORLANDC__ */
520 typedef signed __int64 int64_t;
521 typedef unsigned __int64 uint64_t;
522 #endif
371#else 523#else
372# define expect(expr,value) (expr) 524 #include <inttypes.h>
373# define noinline
374# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
375# define inline
376# endif 525#endif
526
527/* many compilers define _GNUC_ to some versions but then only implement
528 * what their idiot authors think are the "more important" extensions,
529 * causing enormous grief in return for some better fake benchmark numbers.
530 * or so.
531 * we try to detect these and simply assume they are not gcc - if they have
532 * an issue with that they should have done it right in the first place.
533 */
534#ifndef ECB_GCC_VERSION
535 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
536 #define ECB_GCC_VERSION(major,minor) 0
537 #else
538 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
377#endif 539 #endif
540#endif
378 541
542/*****************************************************************************/
543
544/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
545/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
546
547#if ECB_NO_THREADS
548# define ECB_NO_SMP 1
549#endif
550
551#if ECB_NO_THREADS || ECB_NO_SMP
552 #define ECB_MEMORY_FENCE do { } while (0)
553#endif
554
555#ifndef ECB_MEMORY_FENCE
556 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
557 #if __i386 || __i386__
558 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
559 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
560 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
561 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
565 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
567 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
568 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
570 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
571 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
573 #elif __sparc || __sparc__
574 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
575 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
576 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
577 #elif defined __s390__ || defined __s390x__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
579 #elif defined __mips__
580 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
581 #elif defined __alpha__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
583 #endif
584 #endif
585#endif
586
587#ifndef ECB_MEMORY_FENCE
588 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
589 #define ECB_MEMORY_FENCE __sync_synchronize ()
590 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
591 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
592 #elif _MSC_VER >= 1400 /* VC++ 2005 */
593 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
594 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
595 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
596 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
597 #elif defined _WIN32
598 #include <WinNT.h>
599 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
600 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
601 #include <mbarrier.h>
602 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
603 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
604 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
605 #elif __xlC__
606 #define ECB_MEMORY_FENCE __sync ()
607 #endif
608#endif
609
610#ifndef ECB_MEMORY_FENCE
611 #if !ECB_AVOID_PTHREADS
612 /*
613 * if you get undefined symbol references to pthread_mutex_lock,
614 * or failure to find pthread.h, then you should implement
615 * the ECB_MEMORY_FENCE operations for your cpu/compiler
616 * OR provide pthread.h and link against the posix thread library
617 * of your system.
618 */
619 #include <pthread.h>
620 #define ECB_NEEDS_PTHREADS 1
621 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
622
623 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
624 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
625 #endif
626#endif
627
628#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
629 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
630#endif
631
632#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
633 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
634#endif
635
636/*****************************************************************************/
637
638#define ECB_C99 (__STDC_VERSION__ >= 199901L)
639
640#if __cplusplus
641 #define ecb_inline static inline
642#elif ECB_GCC_VERSION(2,5)
643 #define ecb_inline static __inline__
644#elif ECB_C99
645 #define ecb_inline static inline
646#else
647 #define ecb_inline static
648#endif
649
650#if ECB_GCC_VERSION(3,3)
651 #define ecb_restrict __restrict__
652#elif ECB_C99
653 #define ecb_restrict restrict
654#else
655 #define ecb_restrict
656#endif
657
658typedef int ecb_bool;
659
660#define ECB_CONCAT_(a, b) a ## b
661#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
662#define ECB_STRINGIFY_(a) # a
663#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
664
665#define ecb_function_ ecb_inline
666
667#if ECB_GCC_VERSION(3,1)
668 #define ecb_attribute(attrlist) __attribute__(attrlist)
669 #define ecb_is_constant(expr) __builtin_constant_p (expr)
670 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
671 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
672#else
673 #define ecb_attribute(attrlist)
674 #define ecb_is_constant(expr) 0
675 #define ecb_expect(expr,value) (expr)
676 #define ecb_prefetch(addr,rw,locality)
677#endif
678
679/* no emulation for ecb_decltype */
680#if ECB_GCC_VERSION(4,5)
681 #define ecb_decltype(x) __decltype(x)
682#elif ECB_GCC_VERSION(3,0)
683 #define ecb_decltype(x) __typeof(x)
684#endif
685
686#define ecb_noinline ecb_attribute ((__noinline__))
687#define ecb_noreturn ecb_attribute ((__noreturn__))
688#define ecb_unused ecb_attribute ((__unused__))
689#define ecb_const ecb_attribute ((__const__))
690#define ecb_pure ecb_attribute ((__pure__))
691
692#if ECB_GCC_VERSION(4,3)
693 #define ecb_artificial ecb_attribute ((__artificial__))
694 #define ecb_hot ecb_attribute ((__hot__))
695 #define ecb_cold ecb_attribute ((__cold__))
696#else
697 #define ecb_artificial
698 #define ecb_hot
699 #define ecb_cold
700#endif
701
702/* put around conditional expressions if you are very sure that the */
703/* expression is mostly true or mostly false. note that these return */
704/* booleans, not the expression. */
379#define expect_false(expr) expect ((expr) != 0, 0) 705#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
380#define expect_true(expr) expect ((expr) != 0, 1) 706#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
707/* for compatibility to the rest of the world */
708#define ecb_likely(expr) ecb_expect_true (expr)
709#define ecb_unlikely(expr) ecb_expect_false (expr)
710
711/* count trailing zero bits and count # of one bits */
712#if ECB_GCC_VERSION(3,4)
713 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
714 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
715 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
716 #define ecb_ctz32(x) __builtin_ctz (x)
717 #define ecb_ctz64(x) __builtin_ctzll (x)
718 #define ecb_popcount32(x) __builtin_popcount (x)
719 /* no popcountll */
720#else
721 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
722 ecb_function_ int
723 ecb_ctz32 (uint32_t x)
724 {
725 int r = 0;
726
727 x &= ~x + 1; /* this isolates the lowest bit */
728
729#if ECB_branchless_on_i386
730 r += !!(x & 0xaaaaaaaa) << 0;
731 r += !!(x & 0xcccccccc) << 1;
732 r += !!(x & 0xf0f0f0f0) << 2;
733 r += !!(x & 0xff00ff00) << 3;
734 r += !!(x & 0xffff0000) << 4;
735#else
736 if (x & 0xaaaaaaaa) r += 1;
737 if (x & 0xcccccccc) r += 2;
738 if (x & 0xf0f0f0f0) r += 4;
739 if (x & 0xff00ff00) r += 8;
740 if (x & 0xffff0000) r += 16;
741#endif
742
743 return r;
744 }
745
746 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
747 ecb_function_ int
748 ecb_ctz64 (uint64_t x)
749 {
750 int shift = x & 0xffffffffU ? 0 : 32;
751 return ecb_ctz32 (x >> shift) + shift;
752 }
753
754 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
755 ecb_function_ int
756 ecb_popcount32 (uint32_t x)
757 {
758 x -= (x >> 1) & 0x55555555;
759 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
760 x = ((x >> 4) + x) & 0x0f0f0f0f;
761 x *= 0x01010101;
762
763 return x >> 24;
764 }
765
766 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
767 ecb_function_ int ecb_ld32 (uint32_t x)
768 {
769 int r = 0;
770
771 if (x >> 16) { x >>= 16; r += 16; }
772 if (x >> 8) { x >>= 8; r += 8; }
773 if (x >> 4) { x >>= 4; r += 4; }
774 if (x >> 2) { x >>= 2; r += 2; }
775 if (x >> 1) { r += 1; }
776
777 return r;
778 }
779
780 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
781 ecb_function_ int ecb_ld64 (uint64_t x)
782 {
783 int r = 0;
784
785 if (x >> 32) { x >>= 32; r += 32; }
786
787 return r + ecb_ld32 (x);
788 }
789#endif
790
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
793{
794 return ( (x * 0x0802U & 0x22110U)
795 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
796}
797
798ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
800{
801 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
802 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
803 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
804 x = ( x >> 8 ) | ( x << 8);
805
806 return x;
807}
808
809ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
811{
812 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
813 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
814 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
815 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
816 x = ( x >> 16 ) | ( x << 16);
817
818 return x;
819}
820
821/* popcount64 is only available on 64 bit cpus as gcc builtin */
822/* so for this version we are lazy */
823ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
824ecb_function_ int
825ecb_popcount64 (uint64_t x)
826{
827 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
828}
829
830ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
831ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
832ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
833ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
834ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
835ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
836ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
837ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
838
839ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
840ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
841ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
842ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
843ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
844ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
845ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
846ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
847
848#if ECB_GCC_VERSION(4,3)
849 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
850 #define ecb_bswap32(x) __builtin_bswap32 (x)
851 #define ecb_bswap64(x) __builtin_bswap64 (x)
852#else
853 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
854 ecb_function_ uint16_t
855 ecb_bswap16 (uint16_t x)
856 {
857 return ecb_rotl16 (x, 8);
858 }
859
860 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
861 ecb_function_ uint32_t
862 ecb_bswap32 (uint32_t x)
863 {
864 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
865 }
866
867 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
868 ecb_function_ uint64_t
869 ecb_bswap64 (uint64_t x)
870 {
871 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
872 }
873#endif
874
875#if ECB_GCC_VERSION(4,5)
876 #define ecb_unreachable() __builtin_unreachable ()
877#else
878 /* this seems to work fine, but gcc always emits a warning for it :/ */
879 ecb_inline void ecb_unreachable (void) ecb_noreturn;
880 ecb_inline void ecb_unreachable (void) { }
881#endif
882
883/* try to tell the compiler that some condition is definitely true */
884#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
885
886ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
887ecb_inline unsigned char
888ecb_byteorder_helper (void)
889{
890 const uint32_t u = 0x11223344;
891 return *(unsigned char *)&u;
892}
893
894ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
895ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
896ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
897ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
898
899#if ECB_GCC_VERSION(3,0) || ECB_C99
900 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
901#else
902 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
903#endif
904
905#if __cplusplus
906 template<typename T>
907 static inline T ecb_div_rd (T val, T div)
908 {
909 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
910 }
911 template<typename T>
912 static inline T ecb_div_ru (T val, T div)
913 {
914 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
915 }
916#else
917 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
918 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
919#endif
920
921#if ecb_cplusplus_does_not_suck
922 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
923 template<typename T, int N>
924 static inline int ecb_array_length (const T (&arr)[N])
925 {
926 return N;
927 }
928#else
929 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
930#endif
931
932#endif
933
934/* ECB.H END */
935
936#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
937/* if your architecture doesn't need memory fences, e.g. because it is
938 * single-cpu/core, or if you use libev in a project that doesn't use libev
939 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
940 * libev, in which cases the memory fences become nops.
941 * alternatively, you can remove this #error and link against libpthread,
942 * which will then provide the memory fences.
943 */
944# error "memory fences not defined for your architecture, please report"
945#endif
946
947#ifndef ECB_MEMORY_FENCE
948# define ECB_MEMORY_FENCE do { } while (0)
949# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
950# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
951#endif
952
953#define expect_false(cond) ecb_expect_false (cond)
954#define expect_true(cond) ecb_expect_true (cond)
955#define noinline ecb_noinline
956
381#define inline_size static inline 957#define inline_size ecb_inline
382 958
383#if EV_MINIMAL 959#if EV_FEATURE_CODE
960# define inline_speed ecb_inline
961#else
384# define inline_speed static noinline 962# define inline_speed static noinline
963#endif
964
965#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
966
967#if EV_MINPRI == EV_MAXPRI
968# define ABSPRI(w) (((W)w), 0)
385#else 969#else
386# define inline_speed static inline
387#endif
388
389#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
390#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 970# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
971#endif
391 972
392#define EMPTY /* required for microsofts broken pseudo-c compiler */ 973#define EMPTY /* required for microsofts broken pseudo-c compiler */
393#define EMPTY2(a,b) /* used to suppress some warnings */ 974#define EMPTY2(a,b) /* used to suppress some warnings */
394 975
395typedef ev_watcher *W; 976typedef ev_watcher *W;
… …
397typedef ev_watcher_time *WT; 978typedef ev_watcher_time *WT;
398 979
399#define ev_active(w) ((W)(w))->active 980#define ev_active(w) ((W)(w))->active
400#define ev_at(w) ((WT)(w))->at 981#define ev_at(w) ((WT)(w))->at
401 982
983#if EV_USE_REALTIME
984/* sig_atomic_t is used to avoid per-thread variables or locking but still */
985/* giving it a reasonably high chance of working on typical architectures */
986static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
987#endif
988
402#if EV_USE_MONOTONIC 989#if EV_USE_MONOTONIC
403/* sig_atomic_t is used to avoid per-thread variables or locking but still */
404/* giving it a reasonably high chance of working on typical architetcures */
405static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 990static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
991#endif
992
993#ifndef EV_FD_TO_WIN32_HANDLE
994# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
995#endif
996#ifndef EV_WIN32_HANDLE_TO_FD
997# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
998#endif
999#ifndef EV_WIN32_CLOSE_FD
1000# define EV_WIN32_CLOSE_FD(fd) close (fd)
406#endif 1001#endif
407 1002
408#ifdef _WIN32 1003#ifdef _WIN32
409# include "ev_win32.c" 1004# include "ev_win32.c"
410#endif 1005#endif
411 1006
412/*****************************************************************************/ 1007/*****************************************************************************/
413 1008
1009/* define a suitable floor function (only used by periodics atm) */
1010
1011#if EV_USE_FLOOR
1012# include <math.h>
1013# define ev_floor(v) floor (v)
1014#else
1015
1016#include <float.h>
1017
1018/* a floor() replacement function, should be independent of ev_tstamp type */
1019static ev_tstamp noinline
1020ev_floor (ev_tstamp v)
1021{
1022 /* the choice of shift factor is not terribly important */
1023#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1024 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1025#else
1026 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1027#endif
1028
1029 /* argument too large for an unsigned long? */
1030 if (expect_false (v >= shift))
1031 {
1032 ev_tstamp f;
1033
1034 if (v == v - 1.)
1035 return v; /* very large number */
1036
1037 f = shift * ev_floor (v * (1. / shift));
1038 return f + ev_floor (v - f);
1039 }
1040
1041 /* special treatment for negative args? */
1042 if (expect_false (v < 0.))
1043 {
1044 ev_tstamp f = -ev_floor (-v);
1045
1046 return f - (f == v ? 0 : 1);
1047 }
1048
1049 /* fits into an unsigned long */
1050 return (unsigned long)v;
1051}
1052
1053#endif
1054
1055/*****************************************************************************/
1056
1057#ifdef __linux
1058# include <sys/utsname.h>
1059#endif
1060
1061static unsigned int noinline ecb_cold
1062ev_linux_version (void)
1063{
1064#ifdef __linux
1065 unsigned int v = 0;
1066 struct utsname buf;
1067 int i;
1068 char *p = buf.release;
1069
1070 if (uname (&buf))
1071 return 0;
1072
1073 for (i = 3+1; --i; )
1074 {
1075 unsigned int c = 0;
1076
1077 for (;;)
1078 {
1079 if (*p >= '0' && *p <= '9')
1080 c = c * 10 + *p++ - '0';
1081 else
1082 {
1083 p += *p == '.';
1084 break;
1085 }
1086 }
1087
1088 v = (v << 8) | c;
1089 }
1090
1091 return v;
1092#else
1093 return 0;
1094#endif
1095}
1096
1097/*****************************************************************************/
1098
1099#if EV_AVOID_STDIO
1100static void noinline ecb_cold
1101ev_printerr (const char *msg)
1102{
1103 write (STDERR_FILENO, msg, strlen (msg));
1104}
1105#endif
1106
414static void (*syserr_cb)(const char *msg); 1107static void (*syserr_cb)(const char *msg) EV_THROW;
415 1108
416void 1109void ecb_cold
417ev_set_syserr_cb (void (*cb)(const char *msg)) 1110ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
418{ 1111{
419 syserr_cb = cb; 1112 syserr_cb = cb;
420} 1113}
421 1114
422static void noinline 1115static void noinline ecb_cold
423ev_syserr (const char *msg) 1116ev_syserr (const char *msg)
424{ 1117{
425 if (!msg) 1118 if (!msg)
426 msg = "(libev) system error"; 1119 msg = "(libev) system error";
427 1120
428 if (syserr_cb) 1121 if (syserr_cb)
429 syserr_cb (msg); 1122 syserr_cb (msg);
430 else 1123 else
431 { 1124 {
1125#if EV_AVOID_STDIO
1126 ev_printerr (msg);
1127 ev_printerr (": ");
1128 ev_printerr (strerror (errno));
1129 ev_printerr ("\n");
1130#else
432 perror (msg); 1131 perror (msg);
1132#endif
433 abort (); 1133 abort ();
434 } 1134 }
435} 1135}
436 1136
437static void * 1137static void *
438ev_realloc_emul (void *ptr, long size) 1138ev_realloc_emul (void *ptr, long size)
439{ 1139{
1140#if __GLIBC__
1141 return realloc (ptr, size);
1142#else
440 /* some systems, notably openbsd and darwin, fail to properly 1143 /* some systems, notably openbsd and darwin, fail to properly
441 * implement realloc (x, 0) (as required by both ansi c-98 and 1144 * implement realloc (x, 0) (as required by both ansi c-89 and
442 * the single unix specification, so work around them here. 1145 * the single unix specification, so work around them here.
443 */ 1146 */
444 1147
445 if (size) 1148 if (size)
446 return realloc (ptr, size); 1149 return realloc (ptr, size);
447 1150
448 free (ptr); 1151 free (ptr);
449 return 0; 1152 return 0;
1153#endif
450} 1154}
451 1155
452static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1156static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
453 1157
454void 1158void ecb_cold
455ev_set_allocator (void *(*cb)(void *ptr, long size)) 1159ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
456{ 1160{
457 alloc = cb; 1161 alloc = cb;
458} 1162}
459 1163
460inline_speed void * 1164inline_speed void *
… …
462{ 1166{
463 ptr = alloc (ptr, size); 1167 ptr = alloc (ptr, size);
464 1168
465 if (!ptr && size) 1169 if (!ptr && size)
466 { 1170 {
1171#if EV_AVOID_STDIO
1172 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1173#else
467 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1174 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1175#endif
468 abort (); 1176 abort ();
469 } 1177 }
470 1178
471 return ptr; 1179 return ptr;
472} 1180}
… …
474#define ev_malloc(size) ev_realloc (0, (size)) 1182#define ev_malloc(size) ev_realloc (0, (size))
475#define ev_free(ptr) ev_realloc ((ptr), 0) 1183#define ev_free(ptr) ev_realloc ((ptr), 0)
476 1184
477/*****************************************************************************/ 1185/*****************************************************************************/
478 1186
1187/* set in reify when reification needed */
1188#define EV_ANFD_REIFY 1
1189
1190/* file descriptor info structure */
479typedef struct 1191typedef struct
480{ 1192{
481 WL head; 1193 WL head;
482 unsigned char events; 1194 unsigned char events; /* the events watched for */
483 unsigned char reify; 1195 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
484 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1196 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
485 unsigned char unused; 1197 unsigned char unused;
486#if EV_USE_EPOLL 1198#if EV_USE_EPOLL
487 unsigned int egen; /* generation counter to counter epoll bugs */ 1199 unsigned int egen; /* generation counter to counter epoll bugs */
488#endif 1200#endif
489#if EV_SELECT_IS_WINSOCKET 1201#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
490 SOCKET handle; 1202 SOCKET handle;
491#endif 1203#endif
1204#if EV_USE_IOCP
1205 OVERLAPPED or, ow;
1206#endif
492} ANFD; 1207} ANFD;
493 1208
1209/* stores the pending event set for a given watcher */
494typedef struct 1210typedef struct
495{ 1211{
496 W w; 1212 W w;
497 int events; 1213 int events; /* the pending event set for the given watcher */
498} ANPENDING; 1214} ANPENDING;
499 1215
500#if EV_USE_INOTIFY 1216#if EV_USE_INOTIFY
501/* hash table entry per inotify-id */ 1217/* hash table entry per inotify-id */
502typedef struct 1218typedef struct
… …
505} ANFS; 1221} ANFS;
506#endif 1222#endif
507 1223
508/* Heap Entry */ 1224/* Heap Entry */
509#if EV_HEAP_CACHE_AT 1225#if EV_HEAP_CACHE_AT
1226 /* a heap element */
510 typedef struct { 1227 typedef struct {
511 ev_tstamp at; 1228 ev_tstamp at;
512 WT w; 1229 WT w;
513 } ANHE; 1230 } ANHE;
514 1231
515 #define ANHE_w(he) (he).w /* access watcher, read-write */ 1232 #define ANHE_w(he) (he).w /* access watcher, read-write */
516 #define ANHE_at(he) (he).at /* access cached at, read-only */ 1233 #define ANHE_at(he) (he).at /* access cached at, read-only */
517 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ 1234 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
518#else 1235#else
1236 /* a heap element */
519 typedef WT ANHE; 1237 typedef WT ANHE;
520 1238
521 #define ANHE_w(he) (he) 1239 #define ANHE_w(he) (he)
522 #define ANHE_at(he) (he)->at 1240 #define ANHE_at(he) (he)->at
523 #define ANHE_at_cache(he) 1241 #define ANHE_at_cache(he)
… …
534 #undef VAR 1252 #undef VAR
535 }; 1253 };
536 #include "ev_wrap.h" 1254 #include "ev_wrap.h"
537 1255
538 static struct ev_loop default_loop_struct; 1256 static struct ev_loop default_loop_struct;
539 struct ev_loop *ev_default_loop_ptr; 1257 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
540 1258
541#else 1259#else
542 1260
543 ev_tstamp ev_rt_now; 1261 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
544 #define VAR(name,decl) static decl; 1262 #define VAR(name,decl) static decl;
545 #include "ev_vars.h" 1263 #include "ev_vars.h"
546 #undef VAR 1264 #undef VAR
547 1265
548 static int ev_default_loop_ptr; 1266 static int ev_default_loop_ptr;
549 1267
550#endif 1268#endif
551 1269
1270#if EV_FEATURE_API
1271# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
1272# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
1273# define EV_INVOKE_PENDING invoke_cb (EV_A)
1274#else
1275# define EV_RELEASE_CB (void)0
1276# define EV_ACQUIRE_CB (void)0
1277# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
1278#endif
1279
1280#define EVBREAK_RECURSE 0x80
1281
552/*****************************************************************************/ 1282/*****************************************************************************/
553 1283
1284#ifndef EV_HAVE_EV_TIME
554ev_tstamp 1285ev_tstamp
555ev_time (void) 1286ev_time (void) EV_THROW
556{ 1287{
557#if EV_USE_REALTIME 1288#if EV_USE_REALTIME
1289 if (expect_true (have_realtime))
1290 {
558 struct timespec ts; 1291 struct timespec ts;
559 clock_gettime (CLOCK_REALTIME, &ts); 1292 clock_gettime (CLOCK_REALTIME, &ts);
560 return ts.tv_sec + ts.tv_nsec * 1e-9; 1293 return ts.tv_sec + ts.tv_nsec * 1e-9;
561#else 1294 }
1295#endif
1296
562 struct timeval tv; 1297 struct timeval tv;
563 gettimeofday (&tv, 0); 1298 gettimeofday (&tv, 0);
564 return tv.tv_sec + tv.tv_usec * 1e-6; 1299 return tv.tv_sec + tv.tv_usec * 1e-6;
565#endif
566} 1300}
1301#endif
567 1302
568ev_tstamp inline_size 1303inline_size ev_tstamp
569get_clock (void) 1304get_clock (void)
570{ 1305{
571#if EV_USE_MONOTONIC 1306#if EV_USE_MONOTONIC
572 if (expect_true (have_monotonic)) 1307 if (expect_true (have_monotonic))
573 { 1308 {
… …
580 return ev_time (); 1315 return ev_time ();
581} 1316}
582 1317
583#if EV_MULTIPLICITY 1318#if EV_MULTIPLICITY
584ev_tstamp 1319ev_tstamp
585ev_now (EV_P) 1320ev_now (EV_P) EV_THROW
586{ 1321{
587 return ev_rt_now; 1322 return ev_rt_now;
588} 1323}
589#endif 1324#endif
590 1325
591void 1326void
592ev_sleep (ev_tstamp delay) 1327ev_sleep (ev_tstamp delay) EV_THROW
593{ 1328{
594 if (delay > 0.) 1329 if (delay > 0.)
595 { 1330 {
596#if EV_USE_NANOSLEEP 1331#if EV_USE_NANOSLEEP
597 struct timespec ts; 1332 struct timespec ts;
598 1333
599 ts.tv_sec = (time_t)delay; 1334 EV_TS_SET (ts, delay);
600 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
601
602 nanosleep (&ts, 0); 1335 nanosleep (&ts, 0);
603#elif defined(_WIN32) 1336#elif defined _WIN32
604 Sleep ((unsigned long)(delay * 1e3)); 1337 Sleep ((unsigned long)(delay * 1e3));
605#else 1338#else
606 struct timeval tv; 1339 struct timeval tv;
607 1340
608 tv.tv_sec = (time_t)delay;
609 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
610
611 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1341 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
612 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 1342 /* something not guaranteed by newer posix versions, but guaranteed */
613 /* by older ones */ 1343 /* by older ones */
1344 EV_TV_SET (tv, delay);
614 select (0, 0, 0, 0, &tv); 1345 select (0, 0, 0, 0, &tv);
615#endif 1346#endif
616 } 1347 }
617} 1348}
618 1349
619/*****************************************************************************/ 1350/*****************************************************************************/
620 1351
621#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1352#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
622 1353
623int inline_size 1354/* find a suitable new size for the given array, */
1355/* hopefully by rounding to a nice-to-malloc size */
1356inline_size int
624array_nextsize (int elem, int cur, int cnt) 1357array_nextsize (int elem, int cur, int cnt)
625{ 1358{
626 int ncur = cur + 1; 1359 int ncur = cur + 1;
627 1360
628 do 1361 do
629 ncur <<= 1; 1362 ncur <<= 1;
630 while (cnt > ncur); 1363 while (cnt > ncur);
631 1364
632 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1365 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
633 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1366 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
634 { 1367 {
635 ncur *= elem; 1368 ncur *= elem;
636 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1369 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
637 ncur = ncur - sizeof (void *) * 4; 1370 ncur = ncur - sizeof (void *) * 4;
… …
639 } 1372 }
640 1373
641 return ncur; 1374 return ncur;
642} 1375}
643 1376
644static noinline void * 1377static void * noinline ecb_cold
645array_realloc (int elem, void *base, int *cur, int cnt) 1378array_realloc (int elem, void *base, int *cur, int cnt)
646{ 1379{
647 *cur = array_nextsize (elem, *cur, cnt); 1380 *cur = array_nextsize (elem, *cur, cnt);
648 return ev_realloc (base, elem * *cur); 1381 return ev_realloc (base, elem * *cur);
649} 1382}
… …
652 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1385 memset ((void *)(base), 0, sizeof (*(base)) * (count))
653 1386
654#define array_needsize(type,base,cur,cnt,init) \ 1387#define array_needsize(type,base,cur,cnt,init) \
655 if (expect_false ((cnt) > (cur))) \ 1388 if (expect_false ((cnt) > (cur))) \
656 { \ 1389 { \
657 int ocur_ = (cur); \ 1390 int ecb_unused ocur_ = (cur); \
658 (base) = (type *)array_realloc \ 1391 (base) = (type *)array_realloc \
659 (sizeof (type), (base), &(cur), (cnt)); \ 1392 (sizeof (type), (base), &(cur), (cnt)); \
660 init ((base) + (ocur_), (cur) - ocur_); \ 1393 init ((base) + (ocur_), (cur) - ocur_); \
661 } 1394 }
662 1395
… …
669 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 1402 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
670 } 1403 }
671#endif 1404#endif
672 1405
673#define array_free(stem, idx) \ 1406#define array_free(stem, idx) \
674 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 1407 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
675 1408
676/*****************************************************************************/ 1409/*****************************************************************************/
677 1410
1411/* dummy callback for pending events */
1412static void noinline
1413pendingcb (EV_P_ ev_prepare *w, int revents)
1414{
1415}
1416
678void noinline 1417void noinline
679ev_feed_event (EV_P_ void *w, int revents) 1418ev_feed_event (EV_P_ void *w, int revents) EV_THROW
680{ 1419{
681 W w_ = (W)w; 1420 W w_ = (W)w;
682 int pri = ABSPRI (w_); 1421 int pri = ABSPRI (w_);
683 1422
684 if (expect_false (w_->pending)) 1423 if (expect_false (w_->pending))
… …
688 w_->pending = ++pendingcnt [pri]; 1427 w_->pending = ++pendingcnt [pri];
689 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1428 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
690 pendings [pri][w_->pending - 1].w = w_; 1429 pendings [pri][w_->pending - 1].w = w_;
691 pendings [pri][w_->pending - 1].events = revents; 1430 pendings [pri][w_->pending - 1].events = revents;
692 } 1431 }
693}
694 1432
695void inline_speed 1433 pendingpri = NUMPRI - 1;
1434}
1435
1436inline_speed void
1437feed_reverse (EV_P_ W w)
1438{
1439 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
1440 rfeeds [rfeedcnt++] = w;
1441}
1442
1443inline_size void
1444feed_reverse_done (EV_P_ int revents)
1445{
1446 do
1447 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
1448 while (rfeedcnt);
1449}
1450
1451inline_speed void
696queue_events (EV_P_ W *events, int eventcnt, int type) 1452queue_events (EV_P_ W *events, int eventcnt, int type)
697{ 1453{
698 int i; 1454 int i;
699 1455
700 for (i = 0; i < eventcnt; ++i) 1456 for (i = 0; i < eventcnt; ++i)
701 ev_feed_event (EV_A_ events [i], type); 1457 ev_feed_event (EV_A_ events [i], type);
702} 1458}
703 1459
704/*****************************************************************************/ 1460/*****************************************************************************/
705 1461
706void inline_speed 1462inline_speed void
707fd_event (EV_P_ int fd, int revents) 1463fd_event_nocheck (EV_P_ int fd, int revents)
708{ 1464{
709 ANFD *anfd = anfds + fd; 1465 ANFD *anfd = anfds + fd;
710 ev_io *w; 1466 ev_io *w;
711 1467
712 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1468 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
716 if (ev) 1472 if (ev)
717 ev_feed_event (EV_A_ (W)w, ev); 1473 ev_feed_event (EV_A_ (W)w, ev);
718 } 1474 }
719} 1475}
720 1476
1477/* do not submit kernel events for fds that have reify set */
1478/* because that means they changed while we were polling for new events */
1479inline_speed void
1480fd_event (EV_P_ int fd, int revents)
1481{
1482 ANFD *anfd = anfds + fd;
1483
1484 if (expect_true (!anfd->reify))
1485 fd_event_nocheck (EV_A_ fd, revents);
1486}
1487
721void 1488void
722ev_feed_fd_event (EV_P_ int fd, int revents) 1489ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
723{ 1490{
724 if (fd >= 0 && fd < anfdmax) 1491 if (fd >= 0 && fd < anfdmax)
725 fd_event (EV_A_ fd, revents); 1492 fd_event_nocheck (EV_A_ fd, revents);
726} 1493}
727 1494
728void inline_size 1495/* make sure the external fd watch events are in-sync */
1496/* with the kernel/libev internal state */
1497inline_size void
729fd_reify (EV_P) 1498fd_reify (EV_P)
730{ 1499{
731 int i; 1500 int i;
1501
1502#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1503 for (i = 0; i < fdchangecnt; ++i)
1504 {
1505 int fd = fdchanges [i];
1506 ANFD *anfd = anfds + fd;
1507
1508 if (anfd->reify & EV__IOFDSET && anfd->head)
1509 {
1510 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1511
1512 if (handle != anfd->handle)
1513 {
1514 unsigned long arg;
1515
1516 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1517
1518 /* handle changed, but fd didn't - we need to do it in two steps */
1519 backend_modify (EV_A_ fd, anfd->events, 0);
1520 anfd->events = 0;
1521 anfd->handle = handle;
1522 }
1523 }
1524 }
1525#endif
732 1526
733 for (i = 0; i < fdchangecnt; ++i) 1527 for (i = 0; i < fdchangecnt; ++i)
734 { 1528 {
735 int fd = fdchanges [i]; 1529 int fd = fdchanges [i];
736 ANFD *anfd = anfds + fd; 1530 ANFD *anfd = anfds + fd;
737 ev_io *w; 1531 ev_io *w;
738 1532
739 unsigned char events = 0; 1533 unsigned char o_events = anfd->events;
1534 unsigned char o_reify = anfd->reify;
740 1535
741 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1536 anfd->reify = 0;
742 events |= (unsigned char)w->events;
743 1537
744#if EV_SELECT_IS_WINSOCKET 1538 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
745 if (events)
746 { 1539 {
747 unsigned long arg; 1540 anfd->events = 0;
748 #ifdef EV_FD_TO_WIN32_HANDLE 1541
749 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1542 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
750 #else 1543 anfd->events |= (unsigned char)w->events;
751 anfd->handle = _get_osfhandle (fd); 1544
752 #endif 1545 if (o_events != anfd->events)
753 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1546 o_reify = EV__IOFDSET; /* actually |= */
754 } 1547 }
755#endif
756 1548
757 { 1549 if (o_reify & EV__IOFDSET)
758 unsigned char o_events = anfd->events;
759 unsigned char o_reify = anfd->reify;
760
761 anfd->reify = 0;
762 anfd->events = events;
763
764 if (o_events != events || o_reify & EV_IOFDSET)
765 backend_modify (EV_A_ fd, o_events, events); 1550 backend_modify (EV_A_ fd, o_events, anfd->events);
766 }
767 } 1551 }
768 1552
769 fdchangecnt = 0; 1553 fdchangecnt = 0;
770} 1554}
771 1555
772void inline_size 1556/* something about the given fd changed */
1557inline_size void
773fd_change (EV_P_ int fd, int flags) 1558fd_change (EV_P_ int fd, int flags)
774{ 1559{
775 unsigned char reify = anfds [fd].reify; 1560 unsigned char reify = anfds [fd].reify;
776 anfds [fd].reify |= flags; 1561 anfds [fd].reify |= flags;
777 1562
… …
781 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 1566 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
782 fdchanges [fdchangecnt - 1] = fd; 1567 fdchanges [fdchangecnt - 1] = fd;
783 } 1568 }
784} 1569}
785 1570
786void inline_speed 1571/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1572inline_speed void ecb_cold
787fd_kill (EV_P_ int fd) 1573fd_kill (EV_P_ int fd)
788{ 1574{
789 ev_io *w; 1575 ev_io *w;
790 1576
791 while ((w = (ev_io *)anfds [fd].head)) 1577 while ((w = (ev_io *)anfds [fd].head))
… …
793 ev_io_stop (EV_A_ w); 1579 ev_io_stop (EV_A_ w);
794 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1580 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
795 } 1581 }
796} 1582}
797 1583
798int inline_size 1584/* check whether the given fd is actually valid, for error recovery */
1585inline_size int ecb_cold
799fd_valid (int fd) 1586fd_valid (int fd)
800{ 1587{
801#ifdef _WIN32 1588#ifdef _WIN32
802 return _get_osfhandle (fd) != -1; 1589 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
803#else 1590#else
804 return fcntl (fd, F_GETFD) != -1; 1591 return fcntl (fd, F_GETFD) != -1;
805#endif 1592#endif
806} 1593}
807 1594
808/* called on EBADF to verify fds */ 1595/* called on EBADF to verify fds */
809static void noinline 1596static void noinline ecb_cold
810fd_ebadf (EV_P) 1597fd_ebadf (EV_P)
811{ 1598{
812 int fd; 1599 int fd;
813 1600
814 for (fd = 0; fd < anfdmax; ++fd) 1601 for (fd = 0; fd < anfdmax; ++fd)
… …
816 if (!fd_valid (fd) && errno == EBADF) 1603 if (!fd_valid (fd) && errno == EBADF)
817 fd_kill (EV_A_ fd); 1604 fd_kill (EV_A_ fd);
818} 1605}
819 1606
820/* called on ENOMEM in select/poll to kill some fds and retry */ 1607/* called on ENOMEM in select/poll to kill some fds and retry */
821static void noinline 1608static void noinline ecb_cold
822fd_enomem (EV_P) 1609fd_enomem (EV_P)
823{ 1610{
824 int fd; 1611 int fd;
825 1612
826 for (fd = anfdmax; fd--; ) 1613 for (fd = anfdmax; fd--; )
827 if (anfds [fd].events) 1614 if (anfds [fd].events)
828 { 1615 {
829 fd_kill (EV_A_ fd); 1616 fd_kill (EV_A_ fd);
830 return; 1617 break;
831 } 1618 }
832} 1619}
833 1620
834/* usually called after fork if backend needs to re-arm all fds from scratch */ 1621/* usually called after fork if backend needs to re-arm all fds from scratch */
835static void noinline 1622static void noinline
… …
840 for (fd = 0; fd < anfdmax; ++fd) 1627 for (fd = 0; fd < anfdmax; ++fd)
841 if (anfds [fd].events) 1628 if (anfds [fd].events)
842 { 1629 {
843 anfds [fd].events = 0; 1630 anfds [fd].events = 0;
844 anfds [fd].emask = 0; 1631 anfds [fd].emask = 0;
845 fd_change (EV_A_ fd, EV_IOFDSET | 1); 1632 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
846 } 1633 }
847} 1634}
848 1635
1636/* used to prepare libev internal fd's */
1637/* this is not fork-safe */
1638inline_speed void
1639fd_intern (int fd)
1640{
1641#ifdef _WIN32
1642 unsigned long arg = 1;
1643 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1644#else
1645 fcntl (fd, F_SETFD, FD_CLOEXEC);
1646 fcntl (fd, F_SETFL, O_NONBLOCK);
1647#endif
1648}
1649
849/*****************************************************************************/ 1650/*****************************************************************************/
850 1651
851/* 1652/*
852 * the heap functions want a real array index. array index 0 uis guaranteed to not 1653 * the heap functions want a real array index. array index 0 is guaranteed to not
853 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1654 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
854 * the branching factor of the d-tree. 1655 * the branching factor of the d-tree.
855 */ 1656 */
856 1657
857/* 1658/*
… …
866#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 1667#define HEAP0 (DHEAP - 1) /* index of first element in heap */
867#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 1668#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
868#define UPHEAP_DONE(p,k) ((p) == (k)) 1669#define UPHEAP_DONE(p,k) ((p) == (k))
869 1670
870/* away from the root */ 1671/* away from the root */
871void inline_speed 1672inline_speed void
872downheap (ANHE *heap, int N, int k) 1673downheap (ANHE *heap, int N, int k)
873{ 1674{
874 ANHE he = heap [k]; 1675 ANHE he = heap [k];
875 ANHE *E = heap + N + HEAP0; 1676 ANHE *E = heap + N + HEAP0;
876 1677
… …
916#define HEAP0 1 1717#define HEAP0 1
917#define HPARENT(k) ((k) >> 1) 1718#define HPARENT(k) ((k) >> 1)
918#define UPHEAP_DONE(p,k) (!(p)) 1719#define UPHEAP_DONE(p,k) (!(p))
919 1720
920/* away from the root */ 1721/* away from the root */
921void inline_speed 1722inline_speed void
922downheap (ANHE *heap, int N, int k) 1723downheap (ANHE *heap, int N, int k)
923{ 1724{
924 ANHE he = heap [k]; 1725 ANHE he = heap [k];
925 1726
926 for (;;) 1727 for (;;)
927 { 1728 {
928 int c = k << 1; 1729 int c = k << 1;
929 1730
930 if (c > N + HEAP0 - 1) 1731 if (c >= N + HEAP0)
931 break; 1732 break;
932 1733
933 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1734 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
934 ? 1 : 0; 1735 ? 1 : 0;
935 1736
… …
946 ev_active (ANHE_w (he)) = k; 1747 ev_active (ANHE_w (he)) = k;
947} 1748}
948#endif 1749#endif
949 1750
950/* towards the root */ 1751/* towards the root */
951void inline_speed 1752inline_speed void
952upheap (ANHE *heap, int k) 1753upheap (ANHE *heap, int k)
953{ 1754{
954 ANHE he = heap [k]; 1755 ANHE he = heap [k];
955 1756
956 for (;;) 1757 for (;;)
… …
967 1768
968 heap [k] = he; 1769 heap [k] = he;
969 ev_active (ANHE_w (he)) = k; 1770 ev_active (ANHE_w (he)) = k;
970} 1771}
971 1772
972void inline_size 1773/* move an element suitably so it is in a correct place */
1774inline_size void
973adjustheap (ANHE *heap, int N, int k) 1775adjustheap (ANHE *heap, int N, int k)
974{ 1776{
975 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1777 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
976 upheap (heap, k); 1778 upheap (heap, k);
977 else 1779 else
978 downheap (heap, N, k); 1780 downheap (heap, N, k);
979} 1781}
980 1782
981/* rebuild the heap: this function is used only once and executed rarely */ 1783/* rebuild the heap: this function is used only once and executed rarely */
982void inline_size 1784inline_size void
983reheap (ANHE *heap, int N) 1785reheap (ANHE *heap, int N)
984{ 1786{
985 int i; 1787 int i;
986 1788
987 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ 1789 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
… …
990 upheap (heap, i + HEAP0); 1792 upheap (heap, i + HEAP0);
991} 1793}
992 1794
993/*****************************************************************************/ 1795/*****************************************************************************/
994 1796
1797/* associate signal watchers to a signal signal */
995typedef struct 1798typedef struct
996{ 1799{
1800 EV_ATOMIC_T pending;
1801#if EV_MULTIPLICITY
1802 EV_P;
1803#endif
997 WL head; 1804 WL head;
998 EV_ATOMIC_T gotsig;
999} ANSIG; 1805} ANSIG;
1000 1806
1001static ANSIG *signals; 1807static ANSIG signals [EV_NSIG - 1];
1002static int signalmax;
1003
1004static EV_ATOMIC_T gotsig;
1005 1808
1006/*****************************************************************************/ 1809/*****************************************************************************/
1007 1810
1008void inline_speed 1811#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1009fd_intern (int fd)
1010{
1011#ifdef _WIN32
1012 unsigned long arg = 1;
1013 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1014#else
1015 fcntl (fd, F_SETFD, FD_CLOEXEC);
1016 fcntl (fd, F_SETFL, O_NONBLOCK);
1017#endif
1018}
1019 1812
1020static void noinline 1813static void noinline ecb_cold
1021evpipe_init (EV_P) 1814evpipe_init (EV_P)
1022{ 1815{
1023 if (!ev_is_active (&pipeev)) 1816 if (!ev_is_active (&pipe_w))
1024 { 1817 {
1025#if EV_USE_EVENTFD 1818# if EV_USE_EVENTFD
1819 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1820 if (evfd < 0 && errno == EINVAL)
1026 if ((evfd = eventfd (0, 0)) >= 0) 1821 evfd = eventfd (0, 0);
1822
1823 if (evfd >= 0)
1027 { 1824 {
1028 evpipe [0] = -1; 1825 evpipe [0] = -1;
1029 fd_intern (evfd); 1826 fd_intern (evfd); /* doing it twice doesn't hurt */
1030 ev_io_set (&pipeev, evfd, EV_READ); 1827 ev_io_set (&pipe_w, evfd, EV_READ);
1031 } 1828 }
1032 else 1829 else
1033#endif 1830# endif
1034 { 1831 {
1035 while (pipe (evpipe)) 1832 while (pipe (evpipe))
1036 ev_syserr ("(libev) error creating signal/async pipe"); 1833 ev_syserr ("(libev) error creating signal/async pipe");
1037 1834
1038 fd_intern (evpipe [0]); 1835 fd_intern (evpipe [0]);
1039 fd_intern (evpipe [1]); 1836 fd_intern (evpipe [1]);
1040 ev_io_set (&pipeev, evpipe [0], EV_READ); 1837 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1041 } 1838 }
1042 1839
1043 ev_io_start (EV_A_ &pipeev); 1840 ev_io_start (EV_A_ &pipe_w);
1044 ev_unref (EV_A); /* watcher should not keep loop alive */ 1841 ev_unref (EV_A); /* watcher should not keep loop alive */
1045 } 1842 }
1046} 1843}
1047 1844
1048void inline_size 1845inline_speed void
1049evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1846evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1050{ 1847{
1051 if (!*flag) 1848 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1849
1850 if (expect_true (*flag))
1851 return;
1852
1853 *flag = 1;
1854
1855 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1856
1857 pipe_write_skipped = 1;
1858
1859 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1860
1861 if (pipe_write_wanted)
1052 { 1862 {
1863 int old_errno;
1864
1865 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1866
1053 int old_errno = errno; /* save errno because write might clobber it */ 1867 old_errno = errno; /* save errno because write will clobber it */
1054
1055 *flag = 1;
1056 1868
1057#if EV_USE_EVENTFD 1869#if EV_USE_EVENTFD
1058 if (evfd >= 0) 1870 if (evfd >= 0)
1059 { 1871 {
1060 uint64_t counter = 1; 1872 uint64_t counter = 1;
1061 write (evfd, &counter, sizeof (uint64_t)); 1873 write (evfd, &counter, sizeof (uint64_t));
1062 } 1874 }
1063 else 1875 else
1064#endif 1876#endif
1877 {
1878#ifdef _WIN32
1879 WSABUF buf;
1880 DWORD sent;
1881 buf.buf = &buf;
1882 buf.len = 1;
1883 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1884#else
1065 write (evpipe [1], &old_errno, 1); 1885 write (evpipe [1], &(evpipe [1]), 1);
1886#endif
1887 }
1066 1888
1067 errno = old_errno; 1889 errno = old_errno;
1068 } 1890 }
1069} 1891}
1070 1892
1893/* called whenever the libev signal pipe */
1894/* got some events (signal, async) */
1071static void 1895static void
1072pipecb (EV_P_ ev_io *iow, int revents) 1896pipecb (EV_P_ ev_io *iow, int revents)
1073{ 1897{
1898 int i;
1899
1900 if (revents & EV_READ)
1901 {
1074#if EV_USE_EVENTFD 1902#if EV_USE_EVENTFD
1075 if (evfd >= 0) 1903 if (evfd >= 0)
1076 { 1904 {
1077 uint64_t counter; 1905 uint64_t counter;
1078 read (evfd, &counter, sizeof (uint64_t)); 1906 read (evfd, &counter, sizeof (uint64_t));
1079 } 1907 }
1080 else 1908 else
1081#endif 1909#endif
1082 { 1910 {
1083 char dummy; 1911 char dummy[4];
1912#ifdef _WIN32
1913 WSABUF buf;
1914 DWORD recvd;
1915 buf.buf = dummy;
1916 buf.len = sizeof (dummy);
1917 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0);
1918#else
1084 read (evpipe [0], &dummy, 1); 1919 read (evpipe [0], &dummy, sizeof (dummy));
1920#endif
1921 }
1922 }
1923
1924 pipe_write_skipped = 0;
1925
1926 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1927
1928#if EV_SIGNAL_ENABLE
1929 if (sig_pending)
1085 } 1930 {
1931 sig_pending = 0;
1086 1932
1087 if (gotsig && ev_is_default_loop (EV_A)) 1933 ECB_MEMORY_FENCE_RELEASE;
1088 {
1089 int signum;
1090 gotsig = 0;
1091 1934
1092 for (signum = signalmax; signum--; ) 1935 for (i = EV_NSIG - 1; i--; )
1093 if (signals [signum].gotsig) 1936 if (expect_false (signals [i].pending))
1094 ev_feed_signal_event (EV_A_ signum + 1); 1937 ev_feed_signal_event (EV_A_ i + 1);
1095 } 1938 }
1939#endif
1096 1940
1097#if EV_ASYNC_ENABLE 1941#if EV_ASYNC_ENABLE
1098 if (gotasync) 1942 if (async_pending)
1099 { 1943 {
1100 int i; 1944 async_pending = 0;
1101 gotasync = 0; 1945
1946 ECB_MEMORY_FENCE_RELEASE;
1102 1947
1103 for (i = asynccnt; i--; ) 1948 for (i = asynccnt; i--; )
1104 if (asyncs [i]->sent) 1949 if (asyncs [i]->sent)
1105 { 1950 {
1106 asyncs [i]->sent = 0; 1951 asyncs [i]->sent = 0;
… …
1110#endif 1955#endif
1111} 1956}
1112 1957
1113/*****************************************************************************/ 1958/*****************************************************************************/
1114 1959
1960void
1961ev_feed_signal (int signum) EV_THROW
1962{
1963#if EV_MULTIPLICITY
1964 EV_P = signals [signum - 1].loop;
1965
1966 if (!EV_A)
1967 return;
1968#endif
1969
1970 if (!ev_active (&pipe_w))
1971 return;
1972
1973 signals [signum - 1].pending = 1;
1974 evpipe_write (EV_A_ &sig_pending);
1975}
1976
1115static void 1977static void
1116ev_sighandler (int signum) 1978ev_sighandler (int signum)
1117{ 1979{
1980#ifdef _WIN32
1981 signal (signum, ev_sighandler);
1982#endif
1983
1984 ev_feed_signal (signum);
1985}
1986
1987void noinline
1988ev_feed_signal_event (EV_P_ int signum) EV_THROW
1989{
1990 WL w;
1991
1992 if (expect_false (signum <= 0 || signum > EV_NSIG))
1993 return;
1994
1995 --signum;
1996
1118#if EV_MULTIPLICITY 1997#if EV_MULTIPLICITY
1119 struct ev_loop *loop = &default_loop_struct; 1998 /* it is permissible to try to feed a signal to the wrong loop */
1120#endif 1999 /* or, likely more useful, feeding a signal nobody is waiting for */
1121 2000
1122#if _WIN32 2001 if (expect_false (signals [signum].loop != EV_A))
1123 signal (signum, ev_sighandler);
1124#endif
1125
1126 signals [signum - 1].gotsig = 1;
1127 evpipe_write (EV_A_ &gotsig);
1128}
1129
1130void noinline
1131ev_feed_signal_event (EV_P_ int signum)
1132{
1133 WL w;
1134
1135#if EV_MULTIPLICITY
1136 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1137#endif
1138
1139 --signum;
1140
1141 if (signum < 0 || signum >= signalmax)
1142 return; 2002 return;
2003#endif
1143 2004
1144 signals [signum].gotsig = 0; 2005 signals [signum].pending = 0;
1145 2006
1146 for (w = signals [signum].head; w; w = w->next) 2007 for (w = signals [signum].head; w; w = w->next)
1147 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2008 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1148} 2009}
1149 2010
2011#if EV_USE_SIGNALFD
2012static void
2013sigfdcb (EV_P_ ev_io *iow, int revents)
2014{
2015 struct signalfd_siginfo si[2], *sip; /* these structs are big */
2016
2017 for (;;)
2018 {
2019 ssize_t res = read (sigfd, si, sizeof (si));
2020
2021 /* not ISO-C, as res might be -1, but works with SuS */
2022 for (sip = si; (char *)sip < (char *)si + res; ++sip)
2023 ev_feed_signal_event (EV_A_ sip->ssi_signo);
2024
2025 if (res < (ssize_t)sizeof (si))
2026 break;
2027 }
2028}
2029#endif
2030
2031#endif
2032
1150/*****************************************************************************/ 2033/*****************************************************************************/
1151 2034
2035#if EV_CHILD_ENABLE
1152static WL childs [EV_PID_HASHSIZE]; 2036static WL childs [EV_PID_HASHSIZE];
1153
1154#ifndef _WIN32
1155 2037
1156static ev_signal childev; 2038static ev_signal childev;
1157 2039
1158#ifndef WIFCONTINUED 2040#ifndef WIFCONTINUED
1159# define WIFCONTINUED(status) 0 2041# define WIFCONTINUED(status) 0
1160#endif 2042#endif
1161 2043
1162void inline_speed 2044/* handle a single child status event */
2045inline_speed void
1163child_reap (EV_P_ int chain, int pid, int status) 2046child_reap (EV_P_ int chain, int pid, int status)
1164{ 2047{
1165 ev_child *w; 2048 ev_child *w;
1166 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2049 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1167 2050
1168 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2051 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1169 { 2052 {
1170 if ((w->pid == pid || !w->pid) 2053 if ((w->pid == pid || !w->pid)
1171 && (!traced || (w->flags & 1))) 2054 && (!traced || (w->flags & 1)))
1172 { 2055 {
1173 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2056 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1180 2063
1181#ifndef WCONTINUED 2064#ifndef WCONTINUED
1182# define WCONTINUED 0 2065# define WCONTINUED 0
1183#endif 2066#endif
1184 2067
2068/* called on sigchld etc., calls waitpid */
1185static void 2069static void
1186childcb (EV_P_ ev_signal *sw, int revents) 2070childcb (EV_P_ ev_signal *sw, int revents)
1187{ 2071{
1188 int pid, status; 2072 int pid, status;
1189 2073
… …
1197 /* make sure we are called again until all children have been reaped */ 2081 /* make sure we are called again until all children have been reaped */
1198 /* we need to do it this way so that the callback gets called before we continue */ 2082 /* we need to do it this way so that the callback gets called before we continue */
1199 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2083 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1200 2084
1201 child_reap (EV_A_ pid, pid, status); 2085 child_reap (EV_A_ pid, pid, status);
1202 if (EV_PID_HASHSIZE > 1) 2086 if ((EV_PID_HASHSIZE) > 1)
1203 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2087 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1204} 2088}
1205 2089
1206#endif 2090#endif
1207 2091
1208/*****************************************************************************/ 2092/*****************************************************************************/
1209 2093
2094#if EV_USE_IOCP
2095# include "ev_iocp.c"
2096#endif
1210#if EV_USE_PORT 2097#if EV_USE_PORT
1211# include "ev_port.c" 2098# include "ev_port.c"
1212#endif 2099#endif
1213#if EV_USE_KQUEUE 2100#if EV_USE_KQUEUE
1214# include "ev_kqueue.c" 2101# include "ev_kqueue.c"
… …
1221#endif 2108#endif
1222#if EV_USE_SELECT 2109#if EV_USE_SELECT
1223# include "ev_select.c" 2110# include "ev_select.c"
1224#endif 2111#endif
1225 2112
1226int 2113int ecb_cold
1227ev_version_major (void) 2114ev_version_major (void) EV_THROW
1228{ 2115{
1229 return EV_VERSION_MAJOR; 2116 return EV_VERSION_MAJOR;
1230} 2117}
1231 2118
1232int 2119int ecb_cold
1233ev_version_minor (void) 2120ev_version_minor (void) EV_THROW
1234{ 2121{
1235 return EV_VERSION_MINOR; 2122 return EV_VERSION_MINOR;
1236} 2123}
1237 2124
1238/* return true if we are running with elevated privileges and should ignore env variables */ 2125/* return true if we are running with elevated privileges and should ignore env variables */
1239int inline_size 2126int inline_size ecb_cold
1240enable_secure (void) 2127enable_secure (void)
1241{ 2128{
1242#ifdef _WIN32 2129#ifdef _WIN32
1243 return 0; 2130 return 0;
1244#else 2131#else
1245 return getuid () != geteuid () 2132 return getuid () != geteuid ()
1246 || getgid () != getegid (); 2133 || getgid () != getegid ();
1247#endif 2134#endif
1248} 2135}
1249 2136
1250unsigned int 2137unsigned int ecb_cold
1251ev_supported_backends (void) 2138ev_supported_backends (void) EV_THROW
1252{ 2139{
1253 unsigned int flags = 0; 2140 unsigned int flags = 0;
1254 2141
1255 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2142 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1256 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2143 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1259 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2146 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1260 2147
1261 return flags; 2148 return flags;
1262} 2149}
1263 2150
1264unsigned int 2151unsigned int ecb_cold
1265ev_recommended_backends (void) 2152ev_recommended_backends (void) EV_THROW
1266{ 2153{
1267 unsigned int flags = ev_supported_backends (); 2154 unsigned int flags = ev_supported_backends ();
1268 2155
1269#ifndef __NetBSD__ 2156#ifndef __NetBSD__
1270 /* kqueue is borked on everything but netbsd apparently */ 2157 /* kqueue is borked on everything but netbsd apparently */
1271 /* it usually doesn't work correctly on anything but sockets and pipes */ 2158 /* it usually doesn't work correctly on anything but sockets and pipes */
1272 flags &= ~EVBACKEND_KQUEUE; 2159 flags &= ~EVBACKEND_KQUEUE;
1273#endif 2160#endif
1274#ifdef __APPLE__ 2161#ifdef __APPLE__
1275 // flags &= ~EVBACKEND_KQUEUE; for documentation 2162 /* only select works correctly on that "unix-certified" platform */
1276 flags &= ~EVBACKEND_POLL; 2163 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
2164 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
2165#endif
2166#ifdef __FreeBSD__
2167 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1277#endif 2168#endif
1278 2169
1279 return flags; 2170 return flags;
1280} 2171}
1281 2172
2173unsigned int ecb_cold
2174ev_embeddable_backends (void) EV_THROW
2175{
2176 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2177
2178 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2179 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2180 flags &= ~EVBACKEND_EPOLL;
2181
2182 return flags;
2183}
2184
1282unsigned int 2185unsigned int
1283ev_embeddable_backends (void) 2186ev_backend (EV_P) EV_THROW
1284{ 2187{
1285 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2188 return backend;
1286
1287 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1288 /* please fix it and tell me how to detect the fix */
1289 flags &= ~EVBACKEND_EPOLL;
1290
1291 return flags;
1292} 2189}
1293 2190
2191#if EV_FEATURE_API
1294unsigned int 2192unsigned int
1295ev_backend (EV_P) 2193ev_iteration (EV_P) EV_THROW
1296{ 2194{
1297 return backend; 2195 return loop_count;
1298} 2196}
1299 2197
1300unsigned int 2198unsigned int
1301ev_loop_count (EV_P) 2199ev_depth (EV_P) EV_THROW
1302{ 2200{
1303 return loop_count; 2201 return loop_depth;
1304} 2202}
1305 2203
1306void 2204void
1307ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2205ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1308{ 2206{
1309 io_blocktime = interval; 2207 io_blocktime = interval;
1310} 2208}
1311 2209
1312void 2210void
1313ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2211ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1314{ 2212{
1315 timeout_blocktime = interval; 2213 timeout_blocktime = interval;
1316} 2214}
1317 2215
2216void
2217ev_set_userdata (EV_P_ void *data) EV_THROW
2218{
2219 userdata = data;
2220}
2221
2222void *
2223ev_userdata (EV_P) EV_THROW
2224{
2225 return userdata;
2226}
2227
2228void
2229ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2230{
2231 invoke_cb = invoke_pending_cb;
2232}
2233
2234void
2235ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2236{
2237 release_cb = release;
2238 acquire_cb = acquire;
2239}
2240#endif
2241
2242/* initialise a loop structure, must be zero-initialised */
1318static void noinline 2243static void noinline ecb_cold
1319loop_init (EV_P_ unsigned int flags) 2244loop_init (EV_P_ unsigned int flags) EV_THROW
1320{ 2245{
1321 if (!backend) 2246 if (!backend)
1322 { 2247 {
2248 origflags = flags;
2249
2250#if EV_USE_REALTIME
2251 if (!have_realtime)
2252 {
2253 struct timespec ts;
2254
2255 if (!clock_gettime (CLOCK_REALTIME, &ts))
2256 have_realtime = 1;
2257 }
2258#endif
2259
1323#if EV_USE_MONOTONIC 2260#if EV_USE_MONOTONIC
2261 if (!have_monotonic)
1324 { 2262 {
1325 struct timespec ts; 2263 struct timespec ts;
2264
1326 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 2265 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1327 have_monotonic = 1; 2266 have_monotonic = 1;
1328 } 2267 }
1329#endif
1330
1331 ev_rt_now = ev_time ();
1332 mn_now = get_clock ();
1333 now_floor = mn_now;
1334 rtmn_diff = ev_rt_now - mn_now;
1335
1336 io_blocktime = 0.;
1337 timeout_blocktime = 0.;
1338 backend = 0;
1339 backend_fd = -1;
1340 gotasync = 0;
1341#if EV_USE_INOTIFY
1342 fs_fd = -2;
1343#endif 2268#endif
1344 2269
1345 /* pid check not overridable via env */ 2270 /* pid check not overridable via env */
1346#ifndef _WIN32 2271#ifndef _WIN32
1347 if (flags & EVFLAG_FORKCHECK) 2272 if (flags & EVFLAG_FORKCHECK)
… …
1351 if (!(flags & EVFLAG_NOENV) 2276 if (!(flags & EVFLAG_NOENV)
1352 && !enable_secure () 2277 && !enable_secure ()
1353 && getenv ("LIBEV_FLAGS")) 2278 && getenv ("LIBEV_FLAGS"))
1354 flags = atoi (getenv ("LIBEV_FLAGS")); 2279 flags = atoi (getenv ("LIBEV_FLAGS"));
1355 2280
1356 if (!(flags & 0x0000ffffU)) 2281 ev_rt_now = ev_time ();
2282 mn_now = get_clock ();
2283 now_floor = mn_now;
2284 rtmn_diff = ev_rt_now - mn_now;
2285#if EV_FEATURE_API
2286 invoke_cb = ev_invoke_pending;
2287#endif
2288
2289 io_blocktime = 0.;
2290 timeout_blocktime = 0.;
2291 backend = 0;
2292 backend_fd = -1;
2293 sig_pending = 0;
2294#if EV_ASYNC_ENABLE
2295 async_pending = 0;
2296#endif
2297 pipe_write_skipped = 0;
2298 pipe_write_wanted = 0;
2299#if EV_USE_INOTIFY
2300 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2301#endif
2302#if EV_USE_SIGNALFD
2303 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2304#endif
2305
2306 if (!(flags & EVBACKEND_MASK))
1357 flags |= ev_recommended_backends (); 2307 flags |= ev_recommended_backends ();
1358 2308
2309#if EV_USE_IOCP
2310 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2311#endif
1359#if EV_USE_PORT 2312#if EV_USE_PORT
1360 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2313 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1361#endif 2314#endif
1362#if EV_USE_KQUEUE 2315#if EV_USE_KQUEUE
1363 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2316 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1370#endif 2323#endif
1371#if EV_USE_SELECT 2324#if EV_USE_SELECT
1372 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2325 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1373#endif 2326#endif
1374 2327
2328 ev_prepare_init (&pending_w, pendingcb);
2329
2330#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1375 ev_init (&pipeev, pipecb); 2331 ev_init (&pipe_w, pipecb);
1376 ev_set_priority (&pipeev, EV_MAXPRI); 2332 ev_set_priority (&pipe_w, EV_MAXPRI);
2333#endif
1377 } 2334 }
1378} 2335}
1379 2336
1380static void noinline 2337/* free up a loop structure */
2338void ecb_cold
1381loop_destroy (EV_P) 2339ev_loop_destroy (EV_P)
1382{ 2340{
1383 int i; 2341 int i;
1384 2342
2343#if EV_MULTIPLICITY
2344 /* mimic free (0) */
2345 if (!EV_A)
2346 return;
2347#endif
2348
2349#if EV_CLEANUP_ENABLE
2350 /* queue cleanup watchers (and execute them) */
2351 if (expect_false (cleanupcnt))
2352 {
2353 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2354 EV_INVOKE_PENDING;
2355 }
2356#endif
2357
2358#if EV_CHILD_ENABLE
2359 if (ev_is_active (&childev))
2360 {
2361 ev_ref (EV_A); /* child watcher */
2362 ev_signal_stop (EV_A_ &childev);
2363 }
2364#endif
2365
1385 if (ev_is_active (&pipeev)) 2366 if (ev_is_active (&pipe_w))
1386 { 2367 {
1387 ev_ref (EV_A); /* signal watcher */ 2368 /*ev_ref (EV_A);*/
1388 ev_io_stop (EV_A_ &pipeev); 2369 /*ev_io_stop (EV_A_ &pipe_w);*/
1389 2370
1390#if EV_USE_EVENTFD 2371#if EV_USE_EVENTFD
1391 if (evfd >= 0) 2372 if (evfd >= 0)
1392 close (evfd); 2373 close (evfd);
1393#endif 2374#endif
1394 2375
1395 if (evpipe [0] >= 0) 2376 if (evpipe [0] >= 0)
1396 { 2377 {
1397 close (evpipe [0]); 2378 EV_WIN32_CLOSE_FD (evpipe [0]);
1398 close (evpipe [1]); 2379 EV_WIN32_CLOSE_FD (evpipe [1]);
1399 } 2380 }
1400 } 2381 }
2382
2383#if EV_USE_SIGNALFD
2384 if (ev_is_active (&sigfd_w))
2385 close (sigfd);
2386#endif
1401 2387
1402#if EV_USE_INOTIFY 2388#if EV_USE_INOTIFY
1403 if (fs_fd >= 0) 2389 if (fs_fd >= 0)
1404 close (fs_fd); 2390 close (fs_fd);
1405#endif 2391#endif
1406 2392
1407 if (backend_fd >= 0) 2393 if (backend_fd >= 0)
1408 close (backend_fd); 2394 close (backend_fd);
1409 2395
2396#if EV_USE_IOCP
2397 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2398#endif
1410#if EV_USE_PORT 2399#if EV_USE_PORT
1411 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2400 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1412#endif 2401#endif
1413#if EV_USE_KQUEUE 2402#if EV_USE_KQUEUE
1414 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2403 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1429#if EV_IDLE_ENABLE 2418#if EV_IDLE_ENABLE
1430 array_free (idle, [i]); 2419 array_free (idle, [i]);
1431#endif 2420#endif
1432 } 2421 }
1433 2422
1434 ev_free (anfds); anfdmax = 0; 2423 ev_free (anfds); anfds = 0; anfdmax = 0;
1435 2424
1436 /* have to use the microsoft-never-gets-it-right macro */ 2425 /* have to use the microsoft-never-gets-it-right macro */
2426 array_free (rfeed, EMPTY);
1437 array_free (fdchange, EMPTY); 2427 array_free (fdchange, EMPTY);
1438 array_free (timer, EMPTY); 2428 array_free (timer, EMPTY);
1439#if EV_PERIODIC_ENABLE 2429#if EV_PERIODIC_ENABLE
1440 array_free (periodic, EMPTY); 2430 array_free (periodic, EMPTY);
1441#endif 2431#endif
1442#if EV_FORK_ENABLE 2432#if EV_FORK_ENABLE
1443 array_free (fork, EMPTY); 2433 array_free (fork, EMPTY);
1444#endif 2434#endif
2435#if EV_CLEANUP_ENABLE
2436 array_free (cleanup, EMPTY);
2437#endif
1445 array_free (prepare, EMPTY); 2438 array_free (prepare, EMPTY);
1446 array_free (check, EMPTY); 2439 array_free (check, EMPTY);
1447#if EV_ASYNC_ENABLE 2440#if EV_ASYNC_ENABLE
1448 array_free (async, EMPTY); 2441 array_free (async, EMPTY);
1449#endif 2442#endif
1450 2443
1451 backend = 0; 2444 backend = 0;
2445
2446#if EV_MULTIPLICITY
2447 if (ev_is_default_loop (EV_A))
2448#endif
2449 ev_default_loop_ptr = 0;
2450#if EV_MULTIPLICITY
2451 else
2452 ev_free (EV_A);
2453#endif
1452} 2454}
1453 2455
1454#if EV_USE_INOTIFY 2456#if EV_USE_INOTIFY
1455void inline_size infy_fork (EV_P); 2457inline_size void infy_fork (EV_P);
1456#endif 2458#endif
1457 2459
1458void inline_size 2460inline_size void
1459loop_fork (EV_P) 2461loop_fork (EV_P)
1460{ 2462{
1461#if EV_USE_PORT 2463#if EV_USE_PORT
1462 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 2464 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1463#endif 2465#endif
… …
1469#endif 2471#endif
1470#if EV_USE_INOTIFY 2472#if EV_USE_INOTIFY
1471 infy_fork (EV_A); 2473 infy_fork (EV_A);
1472#endif 2474#endif
1473 2475
1474 if (ev_is_active (&pipeev)) 2476 if (ev_is_active (&pipe_w))
1475 { 2477 {
1476 /* this "locks" the handlers against writing to the pipe */ 2478 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1477 /* while we modify the fd vars */
1478 gotsig = 1;
1479#if EV_ASYNC_ENABLE
1480 gotasync = 1;
1481#endif
1482 2479
1483 ev_ref (EV_A); 2480 ev_ref (EV_A);
1484 ev_io_stop (EV_A_ &pipeev); 2481 ev_io_stop (EV_A_ &pipe_w);
1485 2482
1486#if EV_USE_EVENTFD 2483#if EV_USE_EVENTFD
1487 if (evfd >= 0) 2484 if (evfd >= 0)
1488 close (evfd); 2485 close (evfd);
1489#endif 2486#endif
1490 2487
1491 if (evpipe [0] >= 0) 2488 if (evpipe [0] >= 0)
1492 { 2489 {
1493 close (evpipe [0]); 2490 EV_WIN32_CLOSE_FD (evpipe [0]);
1494 close (evpipe [1]); 2491 EV_WIN32_CLOSE_FD (evpipe [1]);
1495 } 2492 }
1496 2493
2494#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1497 evpipe_init (EV_A); 2495 evpipe_init (EV_A);
1498 /* now iterate over everything, in case we missed something */ 2496 /* now iterate over everything, in case we missed something */
1499 pipecb (EV_A_ &pipeev, EV_READ); 2497 pipecb (EV_A_ &pipe_w, EV_READ);
2498#endif
1500 } 2499 }
1501 2500
1502 postfork = 0; 2501 postfork = 0;
1503} 2502}
1504 2503
1505#if EV_MULTIPLICITY 2504#if EV_MULTIPLICITY
1506 2505
1507struct ev_loop * 2506struct ev_loop * ecb_cold
1508ev_loop_new (unsigned int flags) 2507ev_loop_new (unsigned int flags) EV_THROW
1509{ 2508{
1510 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2509 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1511 2510
1512 memset (loop, 0, sizeof (struct ev_loop)); 2511 memset (EV_A, 0, sizeof (struct ev_loop));
1513
1514 loop_init (EV_A_ flags); 2512 loop_init (EV_A_ flags);
1515 2513
1516 if (ev_backend (EV_A)) 2514 if (ev_backend (EV_A))
1517 return loop; 2515 return EV_A;
1518 2516
2517 ev_free (EV_A);
1519 return 0; 2518 return 0;
1520} 2519}
1521 2520
1522void 2521#endif /* multiplicity */
1523ev_loop_destroy (EV_P)
1524{
1525 loop_destroy (EV_A);
1526 ev_free (loop);
1527}
1528
1529void
1530ev_loop_fork (EV_P)
1531{
1532 postfork = 1; /* must be in line with ev_default_fork */
1533}
1534 2522
1535#if EV_VERIFY 2523#if EV_VERIFY
1536static void noinline 2524static void noinline ecb_cold
1537verify_watcher (EV_P_ W w) 2525verify_watcher (EV_P_ W w)
1538{ 2526{
1539 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2527 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1540 2528
1541 if (w->pending) 2529 if (w->pending)
1542 assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2530 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1543} 2531}
1544 2532
1545static void noinline 2533static void noinline ecb_cold
1546verify_heap (EV_P_ ANHE *heap, int N) 2534verify_heap (EV_P_ ANHE *heap, int N)
1547{ 2535{
1548 int i; 2536 int i;
1549 2537
1550 for (i = HEAP0; i < N + HEAP0; ++i) 2538 for (i = HEAP0; i < N + HEAP0; ++i)
1551 { 2539 {
1552 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); 2540 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1553 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); 2541 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1554 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); 2542 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1555 2543
1556 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2544 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1557 } 2545 }
1558} 2546}
1559 2547
1560static void noinline 2548static void noinline ecb_cold
1561array_verify (EV_P_ W *ws, int cnt) 2549array_verify (EV_P_ W *ws, int cnt)
1562{ 2550{
1563 while (cnt--) 2551 while (cnt--)
1564 { 2552 {
1565 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2553 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1566 verify_watcher (EV_A_ ws [cnt]); 2554 verify_watcher (EV_A_ ws [cnt]);
1567 } 2555 }
1568} 2556}
1569#endif 2557#endif
1570 2558
1571void 2559#if EV_FEATURE_API
1572ev_loop_verify (EV_P) 2560void ecb_cold
2561ev_verify (EV_P) EV_THROW
1573{ 2562{
1574#if EV_VERIFY 2563#if EV_VERIFY
1575 int i; 2564 int i;
1576 WL w; 2565 WL w, w2;
1577 2566
1578 assert (activecnt >= -1); 2567 assert (activecnt >= -1);
1579 2568
1580 assert (fdchangemax >= fdchangecnt); 2569 assert (fdchangemax >= fdchangecnt);
1581 for (i = 0; i < fdchangecnt; ++i) 2570 for (i = 0; i < fdchangecnt; ++i)
1582 assert (("negative fd in fdchanges", fdchanges [i] >= 0)); 2571 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1583 2572
1584 assert (anfdmax >= 0); 2573 assert (anfdmax >= 0);
1585 for (i = 0; i < anfdmax; ++i) 2574 for (i = 0; i < anfdmax; ++i)
2575 {
2576 int j = 0;
2577
1586 for (w = anfds [i].head; w; w = w->next) 2578 for (w = w2 = anfds [i].head; w; w = w->next)
1587 { 2579 {
1588 verify_watcher (EV_A_ (W)w); 2580 verify_watcher (EV_A_ (W)w);
2581
2582 if (j++ & 1)
2583 {
2584 assert (("libev: io watcher list contains a loop", w != w2));
2585 w2 = w2->next;
2586 }
2587
1589 assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); 2588 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1590 assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2589 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1591 } 2590 }
2591 }
1592 2592
1593 assert (timermax >= timercnt); 2593 assert (timermax >= timercnt);
1594 verify_heap (EV_A_ timers, timercnt); 2594 verify_heap (EV_A_ timers, timercnt);
1595 2595
1596#if EV_PERIODIC_ENABLE 2596#if EV_PERIODIC_ENABLE
… …
1611#if EV_FORK_ENABLE 2611#if EV_FORK_ENABLE
1612 assert (forkmax >= forkcnt); 2612 assert (forkmax >= forkcnt);
1613 array_verify (EV_A_ (W *)forks, forkcnt); 2613 array_verify (EV_A_ (W *)forks, forkcnt);
1614#endif 2614#endif
1615 2615
2616#if EV_CLEANUP_ENABLE
2617 assert (cleanupmax >= cleanupcnt);
2618 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2619#endif
2620
1616#if EV_ASYNC_ENABLE 2621#if EV_ASYNC_ENABLE
1617 assert (asyncmax >= asynccnt); 2622 assert (asyncmax >= asynccnt);
1618 array_verify (EV_A_ (W *)asyncs, asynccnt); 2623 array_verify (EV_A_ (W *)asyncs, asynccnt);
1619#endif 2624#endif
1620 2625
2626#if EV_PREPARE_ENABLE
1621 assert (preparemax >= preparecnt); 2627 assert (preparemax >= preparecnt);
1622 array_verify (EV_A_ (W *)prepares, preparecnt); 2628 array_verify (EV_A_ (W *)prepares, preparecnt);
2629#endif
1623 2630
2631#if EV_CHECK_ENABLE
1624 assert (checkmax >= checkcnt); 2632 assert (checkmax >= checkcnt);
1625 array_verify (EV_A_ (W *)checks, checkcnt); 2633 array_verify (EV_A_ (W *)checks, checkcnt);
2634#endif
1626 2635
1627# if 0 2636# if 0
2637#if EV_CHILD_ENABLE
1628 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)
1629 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2639 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2640#endif
1630# endif 2641# endif
1631#endif 2642#endif
1632} 2643}
1633 2644#endif
1634#endif /* multiplicity */
1635 2645
1636#if EV_MULTIPLICITY 2646#if EV_MULTIPLICITY
1637struct ev_loop * 2647struct ev_loop * ecb_cold
1638ev_default_loop_init (unsigned int flags)
1639#else 2648#else
1640int 2649int
2650#endif
1641ev_default_loop (unsigned int flags) 2651ev_default_loop (unsigned int flags) EV_THROW
1642#endif
1643{ 2652{
1644 if (!ev_default_loop_ptr) 2653 if (!ev_default_loop_ptr)
1645 { 2654 {
1646#if EV_MULTIPLICITY 2655#if EV_MULTIPLICITY
1647 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2656 EV_P = ev_default_loop_ptr = &default_loop_struct;
1648#else 2657#else
1649 ev_default_loop_ptr = 1; 2658 ev_default_loop_ptr = 1;
1650#endif 2659#endif
1651 2660
1652 loop_init (EV_A_ flags); 2661 loop_init (EV_A_ flags);
1653 2662
1654 if (ev_backend (EV_A)) 2663 if (ev_backend (EV_A))
1655 { 2664 {
1656#ifndef _WIN32 2665#if EV_CHILD_ENABLE
1657 ev_signal_init (&childev, childcb, SIGCHLD); 2666 ev_signal_init (&childev, childcb, SIGCHLD);
1658 ev_set_priority (&childev, EV_MAXPRI); 2667 ev_set_priority (&childev, EV_MAXPRI);
1659 ev_signal_start (EV_A_ &childev); 2668 ev_signal_start (EV_A_ &childev);
1660 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2669 ev_unref (EV_A); /* child watcher should not keep loop alive */
1661#endif 2670#endif
… …
1666 2675
1667 return ev_default_loop_ptr; 2676 return ev_default_loop_ptr;
1668} 2677}
1669 2678
1670void 2679void
1671ev_default_destroy (void) 2680ev_loop_fork (EV_P) EV_THROW
1672{ 2681{
1673#if EV_MULTIPLICITY
1674 struct ev_loop *loop = ev_default_loop_ptr;
1675#endif
1676
1677 ev_default_loop_ptr = 0;
1678
1679#ifndef _WIN32
1680 ev_ref (EV_A); /* child watcher */
1681 ev_signal_stop (EV_A_ &childev);
1682#endif
1683
1684 loop_destroy (EV_A);
1685}
1686
1687void
1688ev_default_fork (void)
1689{
1690#if EV_MULTIPLICITY
1691 struct ev_loop *loop = ev_default_loop_ptr;
1692#endif
1693
1694 postfork = 1; /* must be in line with ev_loop_fork */ 2682 postfork = 1; /* must be in line with ev_default_fork */
1695} 2683}
1696 2684
1697/*****************************************************************************/ 2685/*****************************************************************************/
1698 2686
1699void 2687void
1700ev_invoke (EV_P_ void *w, int revents) 2688ev_invoke (EV_P_ void *w, int revents)
1701{ 2689{
1702 EV_CB_INVOKE ((W)w, revents); 2690 EV_CB_INVOKE ((W)w, revents);
1703} 2691}
1704 2692
1705void inline_speed 2693unsigned int
1706call_pending (EV_P) 2694ev_pending_count (EV_P) EV_THROW
1707{ 2695{
1708 int pri; 2696 int pri;
2697 unsigned int count = 0;
1709 2698
1710 for (pri = NUMPRI; pri--; ) 2699 for (pri = NUMPRI; pri--; )
2700 count += pendingcnt [pri];
2701
2702 return count;
2703}
2704
2705void noinline
2706ev_invoke_pending (EV_P)
2707{
2708 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1711 while (pendingcnt [pri]) 2709 while (pendingcnt [pendingpri])
1712 { 2710 {
1713 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2711 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1714 2712
1715 if (expect_true (p->w))
1716 {
1717 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1718
1719 p->w->pending = 0; 2713 p->w->pending = 0;
1720 EV_CB_INVOKE (p->w, p->events); 2714 EV_CB_INVOKE (p->w, p->events);
1721 EV_FREQUENT_CHECK; 2715 EV_FREQUENT_CHECK;
1722 }
1723 } 2716 }
1724} 2717}
1725 2718
1726#if EV_IDLE_ENABLE 2719#if EV_IDLE_ENABLE
1727void inline_size 2720/* make idle watchers pending. this handles the "call-idle */
2721/* only when higher priorities are idle" logic */
2722inline_size void
1728idle_reify (EV_P) 2723idle_reify (EV_P)
1729{ 2724{
1730 if (expect_false (idleall)) 2725 if (expect_false (idleall))
1731 { 2726 {
1732 int pri; 2727 int pri;
… …
1744 } 2739 }
1745 } 2740 }
1746} 2741}
1747#endif 2742#endif
1748 2743
1749void inline_size 2744/* make timers pending */
2745inline_size void
1750timers_reify (EV_P) 2746timers_reify (EV_P)
1751{ 2747{
1752 EV_FREQUENT_CHECK; 2748 EV_FREQUENT_CHECK;
1753 2749
1754 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2750 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1755 { 2751 {
1756 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2752 do
1757
1758 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1759
1760 /* first reschedule or stop timer */
1761 if (w->repeat)
1762 { 2753 {
2754 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2755
2756 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2757
2758 /* first reschedule or stop timer */
2759 if (w->repeat)
2760 {
1763 ev_at (w) += w->repeat; 2761 ev_at (w) += w->repeat;
1764 if (ev_at (w) < mn_now) 2762 if (ev_at (w) < mn_now)
1765 ev_at (w) = mn_now; 2763 ev_at (w) = mn_now;
1766 2764
1767 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 2765 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1768 2766
1769 ANHE_at_cache (timers [HEAP0]); 2767 ANHE_at_cache (timers [HEAP0]);
1770 downheap (timers, timercnt, HEAP0); 2768 downheap (timers, timercnt, HEAP0);
2769 }
2770 else
2771 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2772
2773 EV_FREQUENT_CHECK;
2774 feed_reverse (EV_A_ (W)w);
1771 } 2775 }
1772 else 2776 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1773 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1774 2777
1775 EV_FREQUENT_CHECK; 2778 feed_reverse_done (EV_A_ EV_TIMER);
1776 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1777 } 2779 }
1778} 2780}
1779 2781
1780#if EV_PERIODIC_ENABLE 2782#if EV_PERIODIC_ENABLE
1781void inline_size 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
2808/* make periodics pending */
2809inline_size void
1782periodics_reify (EV_P) 2810periodics_reify (EV_P)
1783{ 2811{
1784 EV_FREQUENT_CHECK; 2812 EV_FREQUENT_CHECK;
1785 2813
1786 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2814 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1787 { 2815 {
1788 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2816 int feed_count = 0;
1789 2817
1790 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2818 do
1791
1792 /* first reschedule or stop timer */
1793 if (w->reschedule_cb)
1794 { 2819 {
2820 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2821
2822 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2823
2824 /* first reschedule or stop timer */
2825 if (w->reschedule_cb)
2826 {
1795 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2827 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1796 2828
1797 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 2829 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1798 2830
1799 ANHE_at_cache (periodics [HEAP0]); 2831 ANHE_at_cache (periodics [HEAP0]);
1800 downheap (periodics, periodiccnt, HEAP0); 2832 downheap (periodics, periodiccnt, HEAP0);
2833 }
2834 else if (w->interval)
2835 {
2836 periodic_recalc (EV_A_ w);
2837 ANHE_at_cache (periodics [HEAP0]);
2838 downheap (periodics, periodiccnt, HEAP0);
2839 }
2840 else
2841 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2842
2843 EV_FREQUENT_CHECK;
2844 feed_reverse (EV_A_ (W)w);
1801 } 2845 }
1802 else if (w->interval) 2846 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1803 {
1804 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1805 /* if next trigger time is not sufficiently in the future, put it there */
1806 /* this might happen because of floating point inexactness */
1807 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1808 {
1809 ev_at (w) += w->interval;
1810 2847
1811 /* if interval is unreasonably low we might still have a time in the past */
1812 /* so correct this. this will make the periodic very inexact, but the user */
1813 /* has effectively asked to get triggered more often than possible */
1814 if (ev_at (w) < ev_rt_now)
1815 ev_at (w) = ev_rt_now;
1816 }
1817
1818 ANHE_at_cache (periodics [HEAP0]);
1819 downheap (periodics, periodiccnt, HEAP0);
1820 }
1821 else
1822 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1823
1824 EV_FREQUENT_CHECK;
1825 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2848 feed_reverse_done (EV_A_ EV_PERIODIC);
1826 } 2849 }
1827} 2850}
1828 2851
2852/* simply recalculate all periodics */
2853/* TODO: maybe ensure that at least one event happens when jumping forward? */
1829static void noinline 2854static void noinline ecb_cold
1830periodics_reschedule (EV_P) 2855periodics_reschedule (EV_P)
1831{ 2856{
1832 int i; 2857 int i;
1833 2858
1834 /* adjust periodics after time jump */ 2859 /* adjust periodics after time jump */
… …
1837 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2862 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1838 2863
1839 if (w->reschedule_cb) 2864 if (w->reschedule_cb)
1840 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2865 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1841 else if (w->interval) 2866 else if (w->interval)
1842 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2867 periodic_recalc (EV_A_ w);
1843 2868
1844 ANHE_at_cache (periodics [i]); 2869 ANHE_at_cache (periodics [i]);
1845 } 2870 }
1846 2871
1847 reheap (periodics, periodiccnt); 2872 reheap (periodics, periodiccnt);
1848} 2873}
1849#endif 2874#endif
1850 2875
1851void inline_speed 2876/* adjust all timers by a given offset */
2877static void noinline ecb_cold
2878timers_reschedule (EV_P_ ev_tstamp adjust)
2879{
2880 int i;
2881
2882 for (i = 0; i < timercnt; ++i)
2883 {
2884 ANHE *he = timers + i + HEAP0;
2885 ANHE_w (*he)->at += adjust;
2886 ANHE_at_cache (*he);
2887 }
2888}
2889
2890/* fetch new monotonic and realtime times from the kernel */
2891/* also detect if there was a timejump, and act accordingly */
2892inline_speed void
1852time_update (EV_P_ ev_tstamp max_block) 2893time_update (EV_P_ ev_tstamp max_block)
1853{ 2894{
1854 int i;
1855
1856#if EV_USE_MONOTONIC 2895#if EV_USE_MONOTONIC
1857 if (expect_true (have_monotonic)) 2896 if (expect_true (have_monotonic))
1858 { 2897 {
2898 int i;
1859 ev_tstamp odiff = rtmn_diff; 2899 ev_tstamp odiff = rtmn_diff;
1860 2900
1861 mn_now = get_clock (); 2901 mn_now = get_clock ();
1862 2902
1863 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2903 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1879 * 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
1880 * in the unlikely event of having been preempted here. 2920 * in the unlikely event of having been preempted here.
1881 */ 2921 */
1882 for (i = 4; --i; ) 2922 for (i = 4; --i; )
1883 { 2923 {
2924 ev_tstamp diff;
1884 rtmn_diff = ev_rt_now - mn_now; 2925 rtmn_diff = ev_rt_now - mn_now;
1885 2926
2927 diff = odiff - rtmn_diff;
2928
1886 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2929 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
1887 return; /* all is well */ 2930 return; /* all is well */
1888 2931
1889 ev_rt_now = ev_time (); 2932 ev_rt_now = ev_time ();
1890 mn_now = get_clock (); 2933 mn_now = get_clock ();
1891 now_floor = mn_now; 2934 now_floor = mn_now;
1892 } 2935 }
1893 2936
2937 /* no timer adjustment, as the monotonic clock doesn't jump */
2938 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1894# if EV_PERIODIC_ENABLE 2939# if EV_PERIODIC_ENABLE
1895 periodics_reschedule (EV_A); 2940 periodics_reschedule (EV_A);
1896# endif 2941# endif
1897 /* no timer adjustment, as the monotonic clock doesn't jump */
1898 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1899 } 2942 }
1900 else 2943 else
1901#endif 2944#endif
1902 { 2945 {
1903 ev_rt_now = ev_time (); 2946 ev_rt_now = ev_time ();
1904 2947
1905 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2948 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1906 { 2949 {
2950 /* adjust timers. this is easy, as the offset is the same for all of them */
2951 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1907#if EV_PERIODIC_ENABLE 2952#if EV_PERIODIC_ENABLE
1908 periodics_reschedule (EV_A); 2953 periodics_reschedule (EV_A);
1909#endif 2954#endif
1910 /* adjust timers. this is easy, as the offset is the same for all of them */
1911 for (i = 0; i < timercnt; ++i)
1912 {
1913 ANHE *he = timers + i + HEAP0;
1914 ANHE_w (*he)->at += ev_rt_now - mn_now;
1915 ANHE_at_cache (*he);
1916 }
1917 } 2955 }
1918 2956
1919 mn_now = ev_rt_now; 2957 mn_now = ev_rt_now;
1920 } 2958 }
1921} 2959}
1922 2960
1923void 2961int
1924ev_ref (EV_P)
1925{
1926 ++activecnt;
1927}
1928
1929void
1930ev_unref (EV_P)
1931{
1932 --activecnt;
1933}
1934
1935void
1936ev_now_update (EV_P)
1937{
1938 time_update (EV_A_ 1e100);
1939}
1940
1941static int loop_done;
1942
1943void
1944ev_loop (EV_P_ int flags) 2962ev_run (EV_P_ int flags)
1945{ 2963{
2964#if EV_FEATURE_API
2965 ++loop_depth;
2966#endif
2967
2968 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2969
1946 loop_done = EVUNLOOP_CANCEL; 2970 loop_done = EVBREAK_CANCEL;
1947 2971
1948 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2972 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1949 2973
1950 do 2974 do
1951 { 2975 {
1952#if EV_VERIFY >= 2 2976#if EV_VERIFY >= 2
1953 ev_loop_verify (EV_A); 2977 ev_verify (EV_A);
1954#endif 2978#endif
1955 2979
1956#ifndef _WIN32 2980#ifndef _WIN32
1957 if (expect_false (curpid)) /* penalise the forking check even more */ 2981 if (expect_false (curpid)) /* penalise the forking check even more */
1958 if (expect_false (getpid () != curpid)) 2982 if (expect_false (getpid () != curpid))
… …
1966 /* we might have forked, so queue fork handlers */ 2990 /* we might have forked, so queue fork handlers */
1967 if (expect_false (postfork)) 2991 if (expect_false (postfork))
1968 if (forkcnt) 2992 if (forkcnt)
1969 { 2993 {
1970 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2994 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1971 call_pending (EV_A); 2995 EV_INVOKE_PENDING;
1972 } 2996 }
1973#endif 2997#endif
1974 2998
2999#if EV_PREPARE_ENABLE
1975 /* queue prepare watchers (and execute them) */ 3000 /* queue prepare watchers (and execute them) */
1976 if (expect_false (preparecnt)) 3001 if (expect_false (preparecnt))
1977 { 3002 {
1978 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3003 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1979 call_pending (EV_A); 3004 EV_INVOKE_PENDING;
1980 } 3005 }
3006#endif
1981 3007
1982 if (expect_false (!activecnt)) 3008 if (expect_false (loop_done))
1983 break; 3009 break;
1984 3010
1985 /* we might have forked, so reify kernel state if necessary */ 3011 /* we might have forked, so reify kernel state if necessary */
1986 if (expect_false (postfork)) 3012 if (expect_false (postfork))
1987 loop_fork (EV_A); 3013 loop_fork (EV_A);
… …
1992 /* calculate blocking time */ 3018 /* calculate blocking time */
1993 { 3019 {
1994 ev_tstamp waittime = 0.; 3020 ev_tstamp waittime = 0.;
1995 ev_tstamp sleeptime = 0.; 3021 ev_tstamp sleeptime = 0.;
1996 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
1997 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3034 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
1998 { 3035 {
1999 /* update time to cancel out callback processing overhead */
2000 time_update (EV_A_ 1e100);
2001
2002 waittime = MAX_BLOCKTIME; 3036 waittime = MAX_BLOCKTIME;
2003 3037
2004 if (timercnt) 3038 if (timercnt)
2005 { 3039 {
2006 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3040 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2007 if (waittime > to) waittime = to; 3041 if (waittime > to) waittime = to;
2008 } 3042 }
2009 3043
2010#if EV_PERIODIC_ENABLE 3044#if EV_PERIODIC_ENABLE
2011 if (periodiccnt) 3045 if (periodiccnt)
2012 { 3046 {
2013 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3047 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2014 if (waittime > to) waittime = to; 3048 if (waittime > to) waittime = to;
2015 } 3049 }
2016#endif 3050#endif
2017 3051
3052 /* don't let timeouts decrease the waittime below timeout_blocktime */
2018 if (expect_false (waittime < timeout_blocktime)) 3053 if (expect_false (waittime < timeout_blocktime))
2019 waittime = timeout_blocktime; 3054 waittime = timeout_blocktime;
2020 3055
2021 sleeptime = waittime - backend_fudge; 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;
2022 3060
3061 /* extra check because io_blocktime is commonly 0 */
2023 if (expect_true (sleeptime > io_blocktime)) 3062 if (expect_false (io_blocktime))
2024 sleeptime = io_blocktime;
2025
2026 if (sleeptime)
2027 { 3063 {
3064 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3065
3066 if (sleeptime > waittime - backend_mintime)
3067 sleeptime = waittime - backend_mintime;
3068
3069 if (expect_true (sleeptime > 0.))
3070 {
2028 ev_sleep (sleeptime); 3071 ev_sleep (sleeptime);
2029 waittime -= sleeptime; 3072 waittime -= sleeptime;
3073 }
2030 } 3074 }
2031 } 3075 }
2032 3076
3077#if EV_FEATURE_API
2033 ++loop_count; 3078 ++loop_count;
3079#endif
3080 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2034 backend_poll (EV_A_ waittime); 3081 backend_poll (EV_A_ waittime);
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
2035 3092
2036 /* update ev_rt_now, do magic */ 3093 /* update ev_rt_now, do magic */
2037 time_update (EV_A_ waittime + sleeptime); 3094 time_update (EV_A_ waittime + sleeptime);
2038 } 3095 }
2039 3096
… …
2046#if EV_IDLE_ENABLE 3103#if EV_IDLE_ENABLE
2047 /* queue idle watchers unless other events are pending */ 3104 /* queue idle watchers unless other events are pending */
2048 idle_reify (EV_A); 3105 idle_reify (EV_A);
2049#endif 3106#endif
2050 3107
3108#if EV_CHECK_ENABLE
2051 /* queue check watchers, to be executed first */ 3109 /* queue check watchers, to be executed first */
2052 if (expect_false (checkcnt)) 3110 if (expect_false (checkcnt))
2053 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3111 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3112#endif
2054 3113
2055 call_pending (EV_A); 3114 EV_INVOKE_PENDING;
2056 } 3115 }
2057 while (expect_true ( 3116 while (expect_true (
2058 activecnt 3117 activecnt
2059 && !loop_done 3118 && !loop_done
2060 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3119 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2061 )); 3120 ));
2062 3121
2063 if (loop_done == EVUNLOOP_ONE) 3122 if (loop_done == EVBREAK_ONE)
2064 loop_done = EVUNLOOP_CANCEL; 3123 loop_done = EVBREAK_CANCEL;
3124
3125#if EV_FEATURE_API
3126 --loop_depth;
3127#endif
3128
3129 return activecnt;
2065} 3130}
2066 3131
2067void 3132void
2068ev_unloop (EV_P_ int how) 3133ev_break (EV_P_ int how) EV_THROW
2069{ 3134{
2070 loop_done = how; 3135 loop_done = how;
2071} 3136}
2072 3137
3138void
3139ev_ref (EV_P) EV_THROW
3140{
3141 ++activecnt;
3142}
3143
3144void
3145ev_unref (EV_P) EV_THROW
3146{
3147 --activecnt;
3148}
3149
3150void
3151ev_now_update (EV_P) EV_THROW
3152{
3153 time_update (EV_A_ 1e100);
3154}
3155
3156void
3157ev_suspend (EV_P) EV_THROW
3158{
3159 ev_now_update (EV_A);
3160}
3161
3162void
3163ev_resume (EV_P) EV_THROW
3164{
3165 ev_tstamp mn_prev = mn_now;
3166
3167 ev_now_update (EV_A);
3168 timers_reschedule (EV_A_ mn_now - mn_prev);
3169#if EV_PERIODIC_ENABLE
3170 /* TODO: really do this? */
3171 periodics_reschedule (EV_A);
3172#endif
3173}
3174
2073/*****************************************************************************/ 3175/*****************************************************************************/
3176/* singly-linked list management, used when the expected list length is short */
2074 3177
2075void inline_size 3178inline_size void
2076wlist_add (WL *head, WL elem) 3179wlist_add (WL *head, WL elem)
2077{ 3180{
2078 elem->next = *head; 3181 elem->next = *head;
2079 *head = elem; 3182 *head = elem;
2080} 3183}
2081 3184
2082void inline_size 3185inline_size void
2083wlist_del (WL *head, WL elem) 3186wlist_del (WL *head, WL elem)
2084{ 3187{
2085 while (*head) 3188 while (*head)
2086 { 3189 {
2087 if (*head == elem) 3190 if (expect_true (*head == elem))
2088 { 3191 {
2089 *head = elem->next; 3192 *head = elem->next;
2090 return; 3193 break;
2091 } 3194 }
2092 3195
2093 head = &(*head)->next; 3196 head = &(*head)->next;
2094 } 3197 }
2095} 3198}
2096 3199
2097void inline_speed 3200/* internal, faster, version of ev_clear_pending */
3201inline_speed void
2098clear_pending (EV_P_ W w) 3202clear_pending (EV_P_ W w)
2099{ 3203{
2100 if (w->pending) 3204 if (w->pending)
2101 { 3205 {
2102 pendings [ABSPRI (w)][w->pending - 1].w = 0; 3206 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2103 w->pending = 0; 3207 w->pending = 0;
2104 } 3208 }
2105} 3209}
2106 3210
2107int 3211int
2108ev_clear_pending (EV_P_ void *w) 3212ev_clear_pending (EV_P_ void *w) EV_THROW
2109{ 3213{
2110 W w_ = (W)w; 3214 W w_ = (W)w;
2111 int pending = w_->pending; 3215 int pending = w_->pending;
2112 3216
2113 if (expect_true (pending)) 3217 if (expect_true (pending))
2114 { 3218 {
2115 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 3219 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3220 p->w = (W)&pending_w;
2116 w_->pending = 0; 3221 w_->pending = 0;
2117 p->w = 0;
2118 return p->events; 3222 return p->events;
2119 } 3223 }
2120 else 3224 else
2121 return 0; 3225 return 0;
2122} 3226}
2123 3227
2124void inline_size 3228inline_size void
2125pri_adjust (EV_P_ W w) 3229pri_adjust (EV_P_ W w)
2126{ 3230{
2127 int pri = w->priority; 3231 int pri = ev_priority (w);
2128 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 3232 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2129 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 3233 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2130 w->priority = pri; 3234 ev_set_priority (w, pri);
2131} 3235}
2132 3236
2133void inline_speed 3237inline_speed void
2134ev_start (EV_P_ W w, int active) 3238ev_start (EV_P_ W w, int active)
2135{ 3239{
2136 pri_adjust (EV_A_ w); 3240 pri_adjust (EV_A_ w);
2137 w->active = active; 3241 w->active = active;
2138 ev_ref (EV_A); 3242 ev_ref (EV_A);
2139} 3243}
2140 3244
2141void inline_size 3245inline_size void
2142ev_stop (EV_P_ W w) 3246ev_stop (EV_P_ W w)
2143{ 3247{
2144 ev_unref (EV_A); 3248 ev_unref (EV_A);
2145 w->active = 0; 3249 w->active = 0;
2146} 3250}
2147 3251
2148/*****************************************************************************/ 3252/*****************************************************************************/
2149 3253
2150void noinline 3254void noinline
2151ev_io_start (EV_P_ ev_io *w) 3255ev_io_start (EV_P_ ev_io *w) EV_THROW
2152{ 3256{
2153 int fd = w->fd; 3257 int fd = w->fd;
2154 3258
2155 if (expect_false (ev_is_active (w))) 3259 if (expect_false (ev_is_active (w)))
2156 return; 3260 return;
2157 3261
2158 assert (("ev_io_start called with negative fd", fd >= 0)); 3262 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2159 assert (("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))));
2160 3264
2161 EV_FREQUENT_CHECK; 3265 EV_FREQUENT_CHECK;
2162 3266
2163 ev_start (EV_A_ (W)w, 1); 3267 ev_start (EV_A_ (W)w, 1);
2164 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3268 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2165 wlist_add (&anfds[fd].head, (WL)w); 3269 wlist_add (&anfds[fd].head, (WL)w);
2166 3270
3271 /* common bug, apparently */
3272 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3273
2167 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 3274 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2168 w->events &= ~EV_IOFDSET; 3275 w->events &= ~EV__IOFDSET;
2169 3276
2170 EV_FREQUENT_CHECK; 3277 EV_FREQUENT_CHECK;
2171} 3278}
2172 3279
2173void noinline 3280void noinline
2174ev_io_stop (EV_P_ ev_io *w) 3281ev_io_stop (EV_P_ ev_io *w) EV_THROW
2175{ 3282{
2176 clear_pending (EV_A_ (W)w); 3283 clear_pending (EV_A_ (W)w);
2177 if (expect_false (!ev_is_active (w))) 3284 if (expect_false (!ev_is_active (w)))
2178 return; 3285 return;
2179 3286
2180 assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 3287 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2181 3288
2182 EV_FREQUENT_CHECK; 3289 EV_FREQUENT_CHECK;
2183 3290
2184 wlist_del (&anfds[w->fd].head, (WL)w); 3291 wlist_del (&anfds[w->fd].head, (WL)w);
2185 ev_stop (EV_A_ (W)w); 3292 ev_stop (EV_A_ (W)w);
2186 3293
2187 fd_change (EV_A_ w->fd, 1); 3294 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2188 3295
2189 EV_FREQUENT_CHECK; 3296 EV_FREQUENT_CHECK;
2190} 3297}
2191 3298
2192void noinline 3299void noinline
2193ev_timer_start (EV_P_ ev_timer *w) 3300ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2194{ 3301{
2195 if (expect_false (ev_is_active (w))) 3302 if (expect_false (ev_is_active (w)))
2196 return; 3303 return;
2197 3304
2198 ev_at (w) += mn_now; 3305 ev_at (w) += mn_now;
2199 3306
2200 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 3307 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2201 3308
2202 EV_FREQUENT_CHECK; 3309 EV_FREQUENT_CHECK;
2203 3310
2204 ++timercnt; 3311 ++timercnt;
2205 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3312 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
… …
2208 ANHE_at_cache (timers [ev_active (w)]); 3315 ANHE_at_cache (timers [ev_active (w)]);
2209 upheap (timers, ev_active (w)); 3316 upheap (timers, ev_active (w));
2210 3317
2211 EV_FREQUENT_CHECK; 3318 EV_FREQUENT_CHECK;
2212 3319
2213 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3320 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2214} 3321}
2215 3322
2216void noinline 3323void noinline
2217ev_timer_stop (EV_P_ ev_timer *w) 3324ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2218{ 3325{
2219 clear_pending (EV_A_ (W)w); 3326 clear_pending (EV_A_ (W)w);
2220 if (expect_false (!ev_is_active (w))) 3327 if (expect_false (!ev_is_active (w)))
2221 return; 3328 return;
2222 3329
2223 EV_FREQUENT_CHECK; 3330 EV_FREQUENT_CHECK;
2224 3331
2225 { 3332 {
2226 int active = ev_active (w); 3333 int active = ev_active (w);
2227 3334
2228 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 3335 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2229 3336
2230 --timercnt; 3337 --timercnt;
2231 3338
2232 if (expect_true (active < timercnt + HEAP0)) 3339 if (expect_true (active < timercnt + HEAP0))
2233 { 3340 {
2234 timers [active] = timers [timercnt + HEAP0]; 3341 timers [active] = timers [timercnt + HEAP0];
2235 adjustheap (timers, timercnt, active); 3342 adjustheap (timers, timercnt, active);
2236 } 3343 }
2237 } 3344 }
2238 3345
2239 EV_FREQUENT_CHECK;
2240
2241 ev_at (w) -= mn_now; 3346 ev_at (w) -= mn_now;
2242 3347
2243 ev_stop (EV_A_ (W)w); 3348 ev_stop (EV_A_ (W)w);
3349
3350 EV_FREQUENT_CHECK;
2244} 3351}
2245 3352
2246void noinline 3353void noinline
2247ev_timer_again (EV_P_ ev_timer *w) 3354ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2248{ 3355{
2249 EV_FREQUENT_CHECK; 3356 EV_FREQUENT_CHECK;
3357
3358 clear_pending (EV_A_ (W)w);
2250 3359
2251 if (ev_is_active (w)) 3360 if (ev_is_active (w))
2252 { 3361 {
2253 if (w->repeat) 3362 if (w->repeat)
2254 { 3363 {
… …
2266 } 3375 }
2267 3376
2268 EV_FREQUENT_CHECK; 3377 EV_FREQUENT_CHECK;
2269} 3378}
2270 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
2271#if EV_PERIODIC_ENABLE 3386#if EV_PERIODIC_ENABLE
2272void noinline 3387void noinline
2273ev_periodic_start (EV_P_ ev_periodic *w) 3388ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2274{ 3389{
2275 if (expect_false (ev_is_active (w))) 3390 if (expect_false (ev_is_active (w)))
2276 return; 3391 return;
2277 3392
2278 if (w->reschedule_cb) 3393 if (w->reschedule_cb)
2279 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3394 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2280 else if (w->interval) 3395 else if (w->interval)
2281 { 3396 {
2282 assert (("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.));
2283 /* this formula differs from the one in periodic_reify because we do not always round up */ 3398 periodic_recalc (EV_A_ w);
2284 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2285 } 3399 }
2286 else 3400 else
2287 ev_at (w) = w->offset; 3401 ev_at (w) = w->offset;
2288 3402
2289 EV_FREQUENT_CHECK; 3403 EV_FREQUENT_CHECK;
… …
2295 ANHE_at_cache (periodics [ev_active (w)]); 3409 ANHE_at_cache (periodics [ev_active (w)]);
2296 upheap (periodics, ev_active (w)); 3410 upheap (periodics, ev_active (w));
2297 3411
2298 EV_FREQUENT_CHECK; 3412 EV_FREQUENT_CHECK;
2299 3413
2300 /*assert (("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));*/
2301} 3415}
2302 3416
2303void noinline 3417void noinline
2304ev_periodic_stop (EV_P_ ev_periodic *w) 3418ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2305{ 3419{
2306 clear_pending (EV_A_ (W)w); 3420 clear_pending (EV_A_ (W)w);
2307 if (expect_false (!ev_is_active (w))) 3421 if (expect_false (!ev_is_active (w)))
2308 return; 3422 return;
2309 3423
2310 EV_FREQUENT_CHECK; 3424 EV_FREQUENT_CHECK;
2311 3425
2312 { 3426 {
2313 int active = ev_active (w); 3427 int active = ev_active (w);
2314 3428
2315 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 3429 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2316 3430
2317 --periodiccnt; 3431 --periodiccnt;
2318 3432
2319 if (expect_true (active < periodiccnt + HEAP0)) 3433 if (expect_true (active < periodiccnt + HEAP0))
2320 { 3434 {
2321 periodics [active] = periodics [periodiccnt + HEAP0]; 3435 periodics [active] = periodics [periodiccnt + HEAP0];
2322 adjustheap (periodics, periodiccnt, active); 3436 adjustheap (periodics, periodiccnt, active);
2323 } 3437 }
2324 } 3438 }
2325 3439
2326 EV_FREQUENT_CHECK;
2327
2328 ev_stop (EV_A_ (W)w); 3440 ev_stop (EV_A_ (W)w);
3441
3442 EV_FREQUENT_CHECK;
2329} 3443}
2330 3444
2331void noinline 3445void noinline
2332ev_periodic_again (EV_P_ ev_periodic *w) 3446ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2333{ 3447{
2334 /* TODO: use adjustheap and recalculation */ 3448 /* TODO: use adjustheap and recalculation */
2335 ev_periodic_stop (EV_A_ w); 3449 ev_periodic_stop (EV_A_ w);
2336 ev_periodic_start (EV_A_ w); 3450 ev_periodic_start (EV_A_ w);
2337} 3451}
… …
2339 3453
2340#ifndef SA_RESTART 3454#ifndef SA_RESTART
2341# define SA_RESTART 0 3455# define SA_RESTART 0
2342#endif 3456#endif
2343 3457
3458#if EV_SIGNAL_ENABLE
3459
2344void noinline 3460void noinline
2345ev_signal_start (EV_P_ ev_signal *w) 3461ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2346{ 3462{
2347#if EV_MULTIPLICITY
2348 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2349#endif
2350 if (expect_false (ev_is_active (w))) 3463 if (expect_false (ev_is_active (w)))
2351 return; 3464 return;
2352 3465
2353 assert (("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));
2354 3467
2355 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));
2356 3471
2357 EV_FREQUENT_CHECK; 3472 signals [w->signum - 1].loop = EV_A;
3473#endif
2358 3474
3475 EV_FREQUENT_CHECK;
3476
3477#if EV_USE_SIGNALFD
3478 if (sigfd == -2)
2359 { 3479 {
2360#ifndef _WIN32 3480 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2361 sigset_t full, prev; 3481 if (sigfd < 0 && errno == EINVAL)
2362 sigfillset (&full); 3482 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2363 sigprocmask (SIG_SETMASK, &full, &prev);
2364#endif
2365 3483
2366 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 */
2367 3487
2368#ifndef _WIN32 3488 sigemptyset (&sigfd_set);
2369 sigprocmask (SIG_SETMASK, &prev, 0); 3489
2370#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 }
2371 } 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
2372 3506
2373 ev_start (EV_A_ (W)w, 1); 3507 ev_start (EV_A_ (W)w, 1);
2374 wlist_add (&signals [w->signum - 1].head, (WL)w); 3508 wlist_add (&signals [w->signum - 1].head, (WL)w);
2375 3509
2376 if (!((WL)w)->next) 3510 if (!((WL)w)->next)
3511# if EV_USE_SIGNALFD
3512 if (sigfd < 0) /*TODO*/
3513# endif
2377 { 3514 {
2378#if _WIN32 3515# ifdef _WIN32
3516 evpipe_init (EV_A);
3517
2379 signal (w->signum, ev_sighandler); 3518 signal (w->signum, ev_sighandler);
2380#else 3519# else
2381 struct sigaction sa; 3520 struct sigaction sa;
3521
3522 evpipe_init (EV_A);
3523
2382 sa.sa_handler = ev_sighandler; 3524 sa.sa_handler = ev_sighandler;
2383 sigfillset (&sa.sa_mask); 3525 sigfillset (&sa.sa_mask);
2384 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 */
2385 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 }
2386#endif 3535#endif
2387 } 3536 }
2388 3537
2389 EV_FREQUENT_CHECK; 3538 EV_FREQUENT_CHECK;
2390} 3539}
2391 3540
2392void noinline 3541void noinline
2393ev_signal_stop (EV_P_ ev_signal *w) 3542ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2394{ 3543{
2395 clear_pending (EV_A_ (W)w); 3544 clear_pending (EV_A_ (W)w);
2396 if (expect_false (!ev_is_active (w))) 3545 if (expect_false (!ev_is_active (w)))
2397 return; 3546 return;
2398 3547
… …
2400 3549
2401 wlist_del (&signals [w->signum - 1].head, (WL)w); 3550 wlist_del (&signals [w->signum - 1].head, (WL)w);
2402 ev_stop (EV_A_ (W)w); 3551 ev_stop (EV_A_ (W)w);
2403 3552
2404 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
2405 signal (w->signum, SIG_DFL); 3572 signal (w->signum, SIG_DFL);
3573 }
2406 3574
2407 EV_FREQUENT_CHECK; 3575 EV_FREQUENT_CHECK;
2408} 3576}
3577
3578#endif
3579
3580#if EV_CHILD_ENABLE
2409 3581
2410void 3582void
2411ev_child_start (EV_P_ ev_child *w) 3583ev_child_start (EV_P_ ev_child *w) EV_THROW
2412{ 3584{
2413#if EV_MULTIPLICITY 3585#if EV_MULTIPLICITY
2414 assert (("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));
2415#endif 3587#endif
2416 if (expect_false (ev_is_active (w))) 3588 if (expect_false (ev_is_active (w)))
2417 return; 3589 return;
2418 3590
2419 EV_FREQUENT_CHECK; 3591 EV_FREQUENT_CHECK;
2420 3592
2421 ev_start (EV_A_ (W)w, 1); 3593 ev_start (EV_A_ (W)w, 1);
2422 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3594 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2423 3595
2424 EV_FREQUENT_CHECK; 3596 EV_FREQUENT_CHECK;
2425} 3597}
2426 3598
2427void 3599void
2428ev_child_stop (EV_P_ ev_child *w) 3600ev_child_stop (EV_P_ ev_child *w) EV_THROW
2429{ 3601{
2430 clear_pending (EV_A_ (W)w); 3602 clear_pending (EV_A_ (W)w);
2431 if (expect_false (!ev_is_active (w))) 3603 if (expect_false (!ev_is_active (w)))
2432 return; 3604 return;
2433 3605
2434 EV_FREQUENT_CHECK; 3606 EV_FREQUENT_CHECK;
2435 3607
2436 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3608 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2437 ev_stop (EV_A_ (W)w); 3609 ev_stop (EV_A_ (W)w);
2438 3610
2439 EV_FREQUENT_CHECK; 3611 EV_FREQUENT_CHECK;
2440} 3612}
3613
3614#endif
2441 3615
2442#if EV_STAT_ENABLE 3616#if EV_STAT_ENABLE
2443 3617
2444# ifdef _WIN32 3618# ifdef _WIN32
2445# undef lstat 3619# undef lstat
… …
2451#define MIN_STAT_INTERVAL 0.1074891 3625#define MIN_STAT_INTERVAL 0.1074891
2452 3626
2453static 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);
2454 3628
2455#if EV_USE_INOTIFY 3629#if EV_USE_INOTIFY
2456# 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)
2457 3633
2458static void noinline 3634static void noinline
2459infy_add (EV_P_ ev_stat *w) 3635infy_add (EV_P_ ev_stat *w)
2460{ 3636{
2461 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);
2462 3638
2463 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 */
2464 { 3659 }
3660 else
3661 {
3662 /* can't use inotify, continue to stat */
2465 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3663 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2466 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2467 3664
2468 /* monitor some parent directory for speedup hints */ 3665 /* if path is not there, monitor some parent directory for speedup hints */
2469 /* 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, */
2470 /* but an efficiency issue only */ 3667 /* but an efficiency issue only */
2471 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3668 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2472 { 3669 {
2473 char path [4096]; 3670 char path [4096];
… …
2478 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 3675 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2479 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 3676 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2480 3677
2481 char *pend = strrchr (path, '/'); 3678 char *pend = strrchr (path, '/');
2482 3679
2483 if (!pend) 3680 if (!pend || pend == path)
2484 break; /* whoops, no '/', complain to your admin */ 3681 break;
2485 3682
2486 *pend = 0; 3683 *pend = 0;
2487 w->wd = inotify_add_watch (fs_fd, path, mask); 3684 w->wd = inotify_add_watch (fs_fd, path, mask);
2488 } 3685 }
2489 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3686 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2490 } 3687 }
2491 } 3688 }
2492 else 3689
2493 { 3690 if (w->wd >= 0)
2494 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);
2495 3692
2496 /* now local changes will be tracked by inotify, but remote changes won't */ 3693 /* now re-arm timer, if required */
2497 /* unless the filesystem it known to be local, we therefore still poll */ 3694 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2498 /* also do poll on <2.6.25, but with normal frequency */
2499 struct statfs sfs;
2500
2501 if (fs_2625 && !statfs (w->path, &sfs))
2502 if (sfs.f_type == 0x1373 /* devfs */
2503 || sfs.f_type == 0xEF53 /* ext2/3 */
2504 || sfs.f_type == 0x3153464a /* jfs */
2505 || sfs.f_type == 0x52654973 /* reiser3 */
2506 || sfs.f_type == 0x01021994 /* tempfs */
2507 || sfs.f_type == 0x58465342 /* xfs */)
2508 return;
2509
2510 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2511 ev_timer_again (EV_A_ &w->timer); 3695 ev_timer_again (EV_A_ &w->timer);
2512 } 3696 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2513} 3697}
2514 3698
2515static void noinline 3699static void noinline
2516infy_del (EV_P_ ev_stat *w) 3700infy_del (EV_P_ ev_stat *w)
2517{ 3701{
… …
2520 3704
2521 if (wd < 0) 3705 if (wd < 0)
2522 return; 3706 return;
2523 3707
2524 w->wd = -2; 3708 w->wd = -2;
2525 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3709 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2526 wlist_del (&fs_hash [slot].head, (WL)w); 3710 wlist_del (&fs_hash [slot].head, (WL)w);
2527 3711
2528 /* remove this watcher, if others are watching it, they will rearm */ 3712 /* remove this watcher, if others are watching it, they will rearm */
2529 inotify_rm_watch (fs_fd, wd); 3713 inotify_rm_watch (fs_fd, wd);
2530} 3714}
… …
2532static void noinline 3716static void noinline
2533infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3717infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2534{ 3718{
2535 if (slot < 0) 3719 if (slot < 0)
2536 /* overflow, need to check for all hash slots */ 3720 /* overflow, need to check for all hash slots */
2537 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3721 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2538 infy_wd (EV_A_ slot, wd, ev); 3722 infy_wd (EV_A_ slot, wd, ev);
2539 else 3723 else
2540 { 3724 {
2541 WL w_; 3725 WL w_;
2542 3726
2543 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3727 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2544 { 3728 {
2545 ev_stat *w = (ev_stat *)w_; 3729 ev_stat *w = (ev_stat *)w_;
2546 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 */
2547 3731
2548 if (w->wd == wd || wd == -1) 3732 if (w->wd == wd || wd == -1)
2549 { 3733 {
2550 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3734 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2551 { 3735 {
3736 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2552 w->wd = -1; 3737 w->wd = -1;
2553 infy_add (EV_A_ w); /* re-add, no matter what */ 3738 infy_add (EV_A_ w); /* re-add, no matter what */
2554 } 3739 }
2555 3740
2556 stat_timer_cb (EV_A_ &w->timer, 0); 3741 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2561 3746
2562static void 3747static void
2563infy_cb (EV_P_ ev_io *w, int revents) 3748infy_cb (EV_P_ ev_io *w, int revents)
2564{ 3749{
2565 char buf [EV_INOTIFY_BUFSIZE]; 3750 char buf [EV_INOTIFY_BUFSIZE];
2566 struct inotify_event *ev = (struct inotify_event *)buf;
2567 int ofs; 3751 int ofs;
2568 int len = read (fs_fd, buf, sizeof (buf)); 3752 int len = read (fs_fd, buf, sizeof (buf));
2569 3753
2570 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);
2571 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 }
2572} 3760}
2573 3761
2574void inline_size 3762inline_size void ecb_cold
2575check_2625 (EV_P) 3763ev_check_2625 (EV_P)
2576{ 3764{
2577 /* kernels < 2.6.25 are borked 3765 /* kernels < 2.6.25 are borked
2578 * 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
2579 */ 3767 */
2580 struct utsname buf; 3768 if (ev_linux_version () < 0x020619)
2581 int major, minor, micro;
2582
2583 if (uname (&buf))
2584 return; 3769 return;
2585 3770
2586 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2587 return;
2588
2589 if (major < 2
2590 || (major == 2 && minor < 6)
2591 || (major == 2 && minor == 6 && micro < 25))
2592 return;
2593
2594 fs_2625 = 1; 3771 fs_2625 = 1;
2595} 3772}
2596 3773
2597void inline_size 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 ();
3783}
3784
3785inline_size void
2598infy_init (EV_P) 3786infy_init (EV_P)
2599{ 3787{
2600 if (fs_fd != -2) 3788 if (fs_fd != -2)
2601 return; 3789 return;
2602 3790
2603 fs_fd = -1; 3791 fs_fd = -1;
2604 3792
2605 check_2625 (EV_A); 3793 ev_check_2625 (EV_A);
2606 3794
2607 fs_fd = inotify_init (); 3795 fs_fd = infy_newfd ();
2608 3796
2609 if (fs_fd >= 0) 3797 if (fs_fd >= 0)
2610 { 3798 {
3799 fd_intern (fs_fd);
2611 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3800 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2612 ev_set_priority (&fs_w, EV_MAXPRI); 3801 ev_set_priority (&fs_w, EV_MAXPRI);
2613 ev_io_start (EV_A_ &fs_w); 3802 ev_io_start (EV_A_ &fs_w);
3803 ev_unref (EV_A);
2614 } 3804 }
2615} 3805}
2616 3806
2617void inline_size 3807inline_size void
2618infy_fork (EV_P) 3808infy_fork (EV_P)
2619{ 3809{
2620 int slot; 3810 int slot;
2621 3811
2622 if (fs_fd < 0) 3812 if (fs_fd < 0)
2623 return; 3813 return;
2624 3814
3815 ev_ref (EV_A);
3816 ev_io_stop (EV_A_ &fs_w);
2625 close (fs_fd); 3817 close (fs_fd);
2626 fs_fd = inotify_init (); 3818 fs_fd = infy_newfd ();
2627 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
2628 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3828 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2629 { 3829 {
2630 WL w_ = fs_hash [slot].head; 3830 WL w_ = fs_hash [slot].head;
2631 fs_hash [slot].head = 0; 3831 fs_hash [slot].head = 0;
2632 3832
2633 while (w_) 3833 while (w_)
… …
2638 w->wd = -1; 3838 w->wd = -1;
2639 3839
2640 if (fs_fd >= 0) 3840 if (fs_fd >= 0)
2641 infy_add (EV_A_ w); /* re-add, no matter what */ 3841 infy_add (EV_A_ w); /* re-add, no matter what */
2642 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);
2643 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 }
2644 } 3849 }
2645 } 3850 }
2646} 3851}
2647 3852
2648#endif 3853#endif
… …
2652#else 3857#else
2653# define EV_LSTAT(p,b) lstat (p, b) 3858# define EV_LSTAT(p,b) lstat (p, b)
2654#endif 3859#endif
2655 3860
2656void 3861void
2657ev_stat_stat (EV_P_ ev_stat *w) 3862ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
2658{ 3863{
2659 if (lstat (w->path, &w->attr) < 0) 3864 if (lstat (w->path, &w->attr) < 0)
2660 w->attr.st_nlink = 0; 3865 w->attr.st_nlink = 0;
2661 else if (!w->attr.st_nlink) 3866 else if (!w->attr.st_nlink)
2662 w->attr.st_nlink = 1; 3867 w->attr.st_nlink = 1;
… …
2665static void noinline 3870static void noinline
2666stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3871stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2667{ 3872{
2668 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3873 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2669 3874
2670 /* we copy this here each the time so that */ 3875 ev_statdata prev = w->attr;
2671 /* prev has the old value when the callback gets invoked */
2672 w->prev = w->attr;
2673 ev_stat_stat (EV_A_ w); 3876 ev_stat_stat (EV_A_ w);
2674 3877
2675 /* 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 */
2676 if ( 3879 if (
2677 w->prev.st_dev != w->attr.st_dev 3880 prev.st_dev != w->attr.st_dev
2678 || w->prev.st_ino != w->attr.st_ino 3881 || prev.st_ino != w->attr.st_ino
2679 || w->prev.st_mode != w->attr.st_mode 3882 || prev.st_mode != w->attr.st_mode
2680 || w->prev.st_nlink != w->attr.st_nlink 3883 || prev.st_nlink != w->attr.st_nlink
2681 || w->prev.st_uid != w->attr.st_uid 3884 || prev.st_uid != w->attr.st_uid
2682 || w->prev.st_gid != w->attr.st_gid 3885 || prev.st_gid != w->attr.st_gid
2683 || w->prev.st_rdev != w->attr.st_rdev 3886 || prev.st_rdev != w->attr.st_rdev
2684 || w->prev.st_size != w->attr.st_size 3887 || prev.st_size != w->attr.st_size
2685 || w->prev.st_atime != w->attr.st_atime 3888 || prev.st_atime != w->attr.st_atime
2686 || w->prev.st_mtime != w->attr.st_mtime 3889 || prev.st_mtime != w->attr.st_mtime
2687 || w->prev.st_ctime != w->attr.st_ctime 3890 || prev.st_ctime != w->attr.st_ctime
2688 ) { 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
2689 #if EV_USE_INOTIFY 3897 #if EV_USE_INOTIFY
2690 if (fs_fd >= 0) 3898 if (fs_fd >= 0)
2691 { 3899 {
2692 infy_del (EV_A_ w); 3900 infy_del (EV_A_ w);
2693 infy_add (EV_A_ w); 3901 infy_add (EV_A_ w);
… …
2698 ev_feed_event (EV_A_ w, EV_STAT); 3906 ev_feed_event (EV_A_ w, EV_STAT);
2699 } 3907 }
2700} 3908}
2701 3909
2702void 3910void
2703ev_stat_start (EV_P_ ev_stat *w) 3911ev_stat_start (EV_P_ ev_stat *w) EV_THROW
2704{ 3912{
2705 if (expect_false (ev_is_active (w))) 3913 if (expect_false (ev_is_active (w)))
2706 return; 3914 return;
2707 3915
2708 ev_stat_stat (EV_A_ w); 3916 ev_stat_stat (EV_A_ w);
… …
2718 3926
2719 if (fs_fd >= 0) 3927 if (fs_fd >= 0)
2720 infy_add (EV_A_ w); 3928 infy_add (EV_A_ w);
2721 else 3929 else
2722#endif 3930#endif
3931 {
2723 ev_timer_again (EV_A_ &w->timer); 3932 ev_timer_again (EV_A_ &w->timer);
3933 ev_unref (EV_A);
3934 }
2724 3935
2725 ev_start (EV_A_ (W)w, 1); 3936 ev_start (EV_A_ (W)w, 1);
2726 3937
2727 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
2728} 3939}
2729 3940
2730void 3941void
2731ev_stat_stop (EV_P_ ev_stat *w) 3942ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
2732{ 3943{
2733 clear_pending (EV_A_ (W)w); 3944 clear_pending (EV_A_ (W)w);
2734 if (expect_false (!ev_is_active (w))) 3945 if (expect_false (!ev_is_active (w)))
2735 return; 3946 return;
2736 3947
2737 EV_FREQUENT_CHECK; 3948 EV_FREQUENT_CHECK;
2738 3949
2739#if EV_USE_INOTIFY 3950#if EV_USE_INOTIFY
2740 infy_del (EV_A_ w); 3951 infy_del (EV_A_ w);
2741#endif 3952#endif
3953
3954 if (ev_is_active (&w->timer))
3955 {
3956 ev_ref (EV_A);
2742 ev_timer_stop (EV_A_ &w->timer); 3957 ev_timer_stop (EV_A_ &w->timer);
3958 }
2743 3959
2744 ev_stop (EV_A_ (W)w); 3960 ev_stop (EV_A_ (W)w);
2745 3961
2746 EV_FREQUENT_CHECK; 3962 EV_FREQUENT_CHECK;
2747} 3963}
2748#endif 3964#endif
2749 3965
2750#if EV_IDLE_ENABLE 3966#if EV_IDLE_ENABLE
2751void 3967void
2752ev_idle_start (EV_P_ ev_idle *w) 3968ev_idle_start (EV_P_ ev_idle *w) EV_THROW
2753{ 3969{
2754 if (expect_false (ev_is_active (w))) 3970 if (expect_false (ev_is_active (w)))
2755 return; 3971 return;
2756 3972
2757 pri_adjust (EV_A_ (W)w); 3973 pri_adjust (EV_A_ (W)w);
… …
2770 3986
2771 EV_FREQUENT_CHECK; 3987 EV_FREQUENT_CHECK;
2772} 3988}
2773 3989
2774void 3990void
2775ev_idle_stop (EV_P_ ev_idle *w) 3991ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
2776{ 3992{
2777 clear_pending (EV_A_ (W)w); 3993 clear_pending (EV_A_ (W)w);
2778 if (expect_false (!ev_is_active (w))) 3994 if (expect_false (!ev_is_active (w)))
2779 return; 3995 return;
2780 3996
… …
2792 4008
2793 EV_FREQUENT_CHECK; 4009 EV_FREQUENT_CHECK;
2794} 4010}
2795#endif 4011#endif
2796 4012
4013#if EV_PREPARE_ENABLE
2797void 4014void
2798ev_prepare_start (EV_P_ ev_prepare *w) 4015ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
2799{ 4016{
2800 if (expect_false (ev_is_active (w))) 4017 if (expect_false (ev_is_active (w)))
2801 return; 4018 return;
2802 4019
2803 EV_FREQUENT_CHECK; 4020 EV_FREQUENT_CHECK;
… …
2808 4025
2809 EV_FREQUENT_CHECK; 4026 EV_FREQUENT_CHECK;
2810} 4027}
2811 4028
2812void 4029void
2813ev_prepare_stop (EV_P_ ev_prepare *w) 4030ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
2814{ 4031{
2815 clear_pending (EV_A_ (W)w); 4032 clear_pending (EV_A_ (W)w);
2816 if (expect_false (!ev_is_active (w))) 4033 if (expect_false (!ev_is_active (w)))
2817 return; 4034 return;
2818 4035
… …
2827 4044
2828 ev_stop (EV_A_ (W)w); 4045 ev_stop (EV_A_ (W)w);
2829 4046
2830 EV_FREQUENT_CHECK; 4047 EV_FREQUENT_CHECK;
2831} 4048}
4049#endif
2832 4050
4051#if EV_CHECK_ENABLE
2833void 4052void
2834ev_check_start (EV_P_ ev_check *w) 4053ev_check_start (EV_P_ ev_check *w) EV_THROW
2835{ 4054{
2836 if (expect_false (ev_is_active (w))) 4055 if (expect_false (ev_is_active (w)))
2837 return; 4056 return;
2838 4057
2839 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
… …
2844 4063
2845 EV_FREQUENT_CHECK; 4064 EV_FREQUENT_CHECK;
2846} 4065}
2847 4066
2848void 4067void
2849ev_check_stop (EV_P_ ev_check *w) 4068ev_check_stop (EV_P_ ev_check *w) EV_THROW
2850{ 4069{
2851 clear_pending (EV_A_ (W)w); 4070 clear_pending (EV_A_ (W)w);
2852 if (expect_false (!ev_is_active (w))) 4071 if (expect_false (!ev_is_active (w)))
2853 return; 4072 return;
2854 4073
… …
2863 4082
2864 ev_stop (EV_A_ (W)w); 4083 ev_stop (EV_A_ (W)w);
2865 4084
2866 EV_FREQUENT_CHECK; 4085 EV_FREQUENT_CHECK;
2867} 4086}
4087#endif
2868 4088
2869#if EV_EMBED_ENABLE 4089#if EV_EMBED_ENABLE
2870void noinline 4090void noinline
2871ev_embed_sweep (EV_P_ ev_embed *w) 4091ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
2872{ 4092{
2873 ev_loop (w->other, EVLOOP_NONBLOCK); 4093 ev_run (w->other, EVRUN_NOWAIT);
2874} 4094}
2875 4095
2876static void 4096static void
2877embed_io_cb (EV_P_ ev_io *io, int revents) 4097embed_io_cb (EV_P_ ev_io *io, int revents)
2878{ 4098{
2879 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4099 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2880 4100
2881 if (ev_cb (w)) 4101 if (ev_cb (w))
2882 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4102 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2883 else 4103 else
2884 ev_loop (w->other, EVLOOP_NONBLOCK); 4104 ev_run (w->other, EVRUN_NOWAIT);
2885} 4105}
2886 4106
2887static void 4107static void
2888embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4108embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2889{ 4109{
2890 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 4110 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2891 4111
2892 { 4112 {
2893 struct ev_loop *loop = w->other; 4113 EV_P = w->other;
2894 4114
2895 while (fdchangecnt) 4115 while (fdchangecnt)
2896 { 4116 {
2897 fd_reify (EV_A); 4117 fd_reify (EV_A);
2898 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4118 ev_run (EV_A_ EVRUN_NOWAIT);
2899 } 4119 }
2900 } 4120 }
2901} 4121}
2902 4122
2903static void 4123static void
2904embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 4124embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
2905{ 4125{
2906 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));
2907 4127
4128 ev_embed_stop (EV_A_ w);
4129
2908 { 4130 {
2909 struct ev_loop *loop = w->other; 4131 EV_P = w->other;
2910 4132
2911 ev_loop_fork (EV_A); 4133 ev_loop_fork (EV_A);
4134 ev_run (EV_A_ EVRUN_NOWAIT);
2912 } 4135 }
4136
4137 ev_embed_start (EV_A_ w);
2913} 4138}
2914 4139
2915#if 0 4140#if 0
2916static void 4141static void
2917embed_idle_cb (EV_P_ ev_idle *idle, int revents) 4142embed_idle_cb (EV_P_ ev_idle *idle, int revents)
… …
2919 ev_idle_stop (EV_A_ idle); 4144 ev_idle_stop (EV_A_ idle);
2920} 4145}
2921#endif 4146#endif
2922 4147
2923void 4148void
2924ev_embed_start (EV_P_ ev_embed *w) 4149ev_embed_start (EV_P_ ev_embed *w) EV_THROW
2925{ 4150{
2926 if (expect_false (ev_is_active (w))) 4151 if (expect_false (ev_is_active (w)))
2927 return; 4152 return;
2928 4153
2929 { 4154 {
2930 struct ev_loop *loop = w->other; 4155 EV_P = w->other;
2931 assert (("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 ()));
2932 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);
2933 } 4158 }
2934 4159
2935 EV_FREQUENT_CHECK; 4160 EV_FREQUENT_CHECK;
2936 4161
… …
2950 4175
2951 EV_FREQUENT_CHECK; 4176 EV_FREQUENT_CHECK;
2952} 4177}
2953 4178
2954void 4179void
2955ev_embed_stop (EV_P_ ev_embed *w) 4180ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
2956{ 4181{
2957 clear_pending (EV_A_ (W)w); 4182 clear_pending (EV_A_ (W)w);
2958 if (expect_false (!ev_is_active (w))) 4183 if (expect_false (!ev_is_active (w)))
2959 return; 4184 return;
2960 4185
… …
2962 4187
2963 ev_io_stop (EV_A_ &w->io); 4188 ev_io_stop (EV_A_ &w->io);
2964 ev_prepare_stop (EV_A_ &w->prepare); 4189 ev_prepare_stop (EV_A_ &w->prepare);
2965 ev_fork_stop (EV_A_ &w->fork); 4190 ev_fork_stop (EV_A_ &w->fork);
2966 4191
4192 ev_stop (EV_A_ (W)w);
4193
2967 EV_FREQUENT_CHECK; 4194 EV_FREQUENT_CHECK;
2968} 4195}
2969#endif 4196#endif
2970 4197
2971#if EV_FORK_ENABLE 4198#if EV_FORK_ENABLE
2972void 4199void
2973ev_fork_start (EV_P_ ev_fork *w) 4200ev_fork_start (EV_P_ ev_fork *w) EV_THROW
2974{ 4201{
2975 if (expect_false (ev_is_active (w))) 4202 if (expect_false (ev_is_active (w)))
2976 return; 4203 return;
2977 4204
2978 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
… …
2983 4210
2984 EV_FREQUENT_CHECK; 4211 EV_FREQUENT_CHECK;
2985} 4212}
2986 4213
2987void 4214void
2988ev_fork_stop (EV_P_ ev_fork *w) 4215ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
2989{ 4216{
2990 clear_pending (EV_A_ (W)w); 4217 clear_pending (EV_A_ (W)w);
2991 if (expect_false (!ev_is_active (w))) 4218 if (expect_false (!ev_is_active (w)))
2992 return; 4219 return;
2993 4220
… …
3004 4231
3005 EV_FREQUENT_CHECK; 4232 EV_FREQUENT_CHECK;
3006} 4233}
3007#endif 4234#endif
3008 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
3009#if EV_ASYNC_ENABLE 4277#if EV_ASYNC_ENABLE
3010void 4278void
3011ev_async_start (EV_P_ ev_async *w) 4279ev_async_start (EV_P_ ev_async *w) EV_THROW
3012{ 4280{
3013 if (expect_false (ev_is_active (w))) 4281 if (expect_false (ev_is_active (w)))
3014 return; 4282 return;
4283
4284 w->sent = 0;
3015 4285
3016 evpipe_init (EV_A); 4286 evpipe_init (EV_A);
3017 4287
3018 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3019 4289
… …
3023 4293
3024 EV_FREQUENT_CHECK; 4294 EV_FREQUENT_CHECK;
3025} 4295}
3026 4296
3027void 4297void
3028ev_async_stop (EV_P_ ev_async *w) 4298ev_async_stop (EV_P_ ev_async *w) EV_THROW
3029{ 4299{
3030 clear_pending (EV_A_ (W)w); 4300 clear_pending (EV_A_ (W)w);
3031 if (expect_false (!ev_is_active (w))) 4301 if (expect_false (!ev_is_active (w)))
3032 return; 4302 return;
3033 4303
… …
3044 4314
3045 EV_FREQUENT_CHECK; 4315 EV_FREQUENT_CHECK;
3046} 4316}
3047 4317
3048void 4318void
3049ev_async_send (EV_P_ ev_async *w) 4319ev_async_send (EV_P_ ev_async *w) EV_THROW
3050{ 4320{
3051 w->sent = 1; 4321 w->sent = 1;
3052 evpipe_write (EV_A_ &gotasync); 4322 evpipe_write (EV_A_ &async_pending);
3053} 4323}
3054#endif 4324#endif
3055 4325
3056/*****************************************************************************/ 4326/*****************************************************************************/
3057 4327
… …
3091 4361
3092 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));
3093} 4363}
3094 4364
3095void 4365void
3096ev_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
3097{ 4367{
3098 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));
3099 4369
3100 if (expect_false (!once)) 4370 if (expect_false (!once))
3101 { 4371 {
3102 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4372 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3103 return; 4373 return;
3104 } 4374 }
3105 4375
3106 once->cb = cb; 4376 once->cb = cb;
3107 once->arg = arg; 4377 once->arg = arg;
… …
3119 ev_timer_set (&once->to, timeout, 0.); 4389 ev_timer_set (&once->to, timeout, 0.);
3120 ev_timer_start (EV_A_ &once->to); 4390 ev_timer_start (EV_A_ &once->to);
3121 } 4391 }
3122} 4392}
3123 4393
4394/*****************************************************************************/
4395
4396#if EV_WALK_ENABLE
4397void ecb_cold
4398ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4399{
4400 int i, j;
4401 ev_watcher_list *wl, *wn;
4402
4403 if (types & (EV_IO | EV_EMBED))
4404 for (i = 0; i < anfdmax; ++i)
4405 for (wl = anfds [i].head; wl; )
4406 {
4407 wn = wl->next;
4408
4409#if EV_EMBED_ENABLE
4410 if (ev_cb ((ev_io *)wl) == embed_io_cb)
4411 {
4412 if (types & EV_EMBED)
4413 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
4414 }
4415 else
4416#endif
4417#if EV_USE_INOTIFY
4418 if (ev_cb ((ev_io *)wl) == infy_cb)
4419 ;
4420 else
4421#endif
4422 if ((ev_io *)wl != &pipe_w)
4423 if (types & EV_IO)
4424 cb (EV_A_ EV_IO, wl);
4425
4426 wl = wn;
4427 }
4428
4429 if (types & (EV_TIMER | EV_STAT))
4430 for (i = timercnt + HEAP0; i-- > HEAP0; )
4431#if EV_STAT_ENABLE
4432 /*TODO: timer is not always active*/
4433 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
4434 {
4435 if (types & EV_STAT)
4436 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
4437 }
4438 else
4439#endif
4440 if (types & EV_TIMER)
4441 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
4442
4443#if EV_PERIODIC_ENABLE
4444 if (types & EV_PERIODIC)
4445 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
4446 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
4447#endif
4448
4449#if EV_IDLE_ENABLE
4450 if (types & EV_IDLE)
4451 for (j = NUMPRI; j--; )
4452 for (i = idlecnt [j]; i--; )
4453 cb (EV_A_ EV_IDLE, idles [j][i]);
4454#endif
4455
4456#if EV_FORK_ENABLE
4457 if (types & EV_FORK)
4458 for (i = forkcnt; i--; )
4459 if (ev_cb (forks [i]) != embed_fork_cb)
4460 cb (EV_A_ EV_FORK, forks [i]);
4461#endif
4462
4463#if EV_ASYNC_ENABLE
4464 if (types & EV_ASYNC)
4465 for (i = asynccnt; i--; )
4466 cb (EV_A_ EV_ASYNC, asyncs [i]);
4467#endif
4468
4469#if EV_PREPARE_ENABLE
4470 if (types & EV_PREPARE)
4471 for (i = preparecnt; i--; )
4472# if EV_EMBED_ENABLE
4473 if (ev_cb (prepares [i]) != embed_prepare_cb)
4474# endif
4475 cb (EV_A_ EV_PREPARE, prepares [i]);
4476#endif
4477
4478#if EV_CHECK_ENABLE
4479 if (types & EV_CHECK)
4480 for (i = checkcnt; i--; )
4481 cb (EV_A_ EV_CHECK, checks [i]);
4482#endif
4483
4484#if EV_SIGNAL_ENABLE
4485 if (types & EV_SIGNAL)
4486 for (i = 0; i < EV_NSIG - 1; ++i)
4487 for (wl = signals [i].head; wl; )
4488 {
4489 wn = wl->next;
4490 cb (EV_A_ EV_SIGNAL, wl);
4491 wl = wn;
4492 }
4493#endif
4494
4495#if EV_CHILD_ENABLE
4496 if (types & EV_CHILD)
4497 for (i = (EV_PID_HASHSIZE); i--; )
4498 for (wl = childs [i]; wl; )
4499 {
4500 wn = wl->next;
4501 cb (EV_A_ EV_CHILD, wl);
4502 wl = wn;
4503 }
4504#endif
4505/* EV_STAT 0x00001000 /* stat data changed */
4506/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
4507}
4508#endif
4509
3124#if EV_MULTIPLICITY 4510#if EV_MULTIPLICITY
3125 #include "ev_wrap.h" 4511 #include "ev_wrap.h"
3126#endif 4512#endif
3127 4513
3128#ifdef __cplusplus
3129}
3130#endif
3131

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