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Comparing libev/ev.c (file contents):
Revision 1.318 by root, Tue Nov 17 00:22:28 2009 UTC vs.
Revision 1.432 by root, Mon May 14 19:09:58 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
158#include <fcntl.h> 169#include <fcntl.h>
159#include <stddef.h> 170#include <stddef.h>
160 171
161#include <stdio.h> 172#include <stdio.h>
162 173
163#include <assert.h> 174#include <assert.h>
164#include <errno.h> 175#include <errno.h>
165#include <sys/types.h> 176#include <sys/types.h>
166#include <time.h> 177#include <time.h>
178#include <limits.h>
167 179
168#include <signal.h> 180#include <signal.h>
169 181
170#ifdef EV_H 182#ifdef EV_H
171# include EV_H 183# include EV_H
172#else 184#else
173# 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
174#endif 197#endif
175 198
176#ifndef _WIN32 199#ifndef _WIN32
177# include <sys/time.h> 200# include <sys/time.h>
178# include <sys/wait.h> 201# include <sys/wait.h>
179# include <unistd.h> 202# include <unistd.h>
180#else 203#else
181# include <io.h> 204# include <io.h>
182# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
183# include <windows.h> 207# include <windows.h>
184# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
186# endif 210# endif
211# undef EV_AVOID_STDIO
187#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
188 221
189/* 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 */
190 223
191/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG) 225#if defined EV_NSIG
193/* use what's provided */ 226/* use what's provided */
194#elif defined (NSIG) 227#elif defined NSIG
195# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
196#elif defined(_NSIG) 229#elif defined _NSIG
197# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
198#elif defined (SIGMAX) 231#elif defined SIGMAX
199# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
200#elif defined (SIG_MAX) 233#elif defined SIG_MAX
201# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
202#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
203# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
204#elif defined (MAXSIG) 237#elif defined MAXSIG
205# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG) 239#elif defined MAX_SIG
207# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig) 243#elif defined _sys_nsig
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else 245#else
213# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */ 247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
215# define EV_NSIG 65 249# define EV_NSIG 65
250#endif
251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
216#endif 254#endif
217 255
218#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221# else 259# else
222# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
223# endif 261# endif
224#endif 262#endif
225 263
226#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
229# else 267# else
230# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
231# endif 269# endif
232#endif 270#endif
233 271
… …
235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236#endif 274#endif
237 275
238#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
241# else 279# else
242# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
243# endif 281# endif
244#endif 282#endif
245 283
246#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
247# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
248#endif 286#endif
249 287
250#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
251# ifdef _WIN32 289# ifdef _WIN32
252# define EV_USE_POLL 0 290# define EV_USE_POLL 0
253# else 291# else
254# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
255# endif 293# endif
256#endif 294#endif
257 295
258#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
259# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261# else 299# else
262# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
263# endif 301# endif
264#endif 302#endif
265 303
… …
271# define EV_USE_PORT 0 309# define EV_USE_PORT 0
272#endif 310#endif
273 311
274#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
275# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
277# else 315# else
278# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
279# endif 317# endif
280#endif 318#endif
281 319
282#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
283# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
284# define EV_PID_HASHSIZE 1
285# else
286# define EV_PID_HASHSIZE 16
287# endif
288#endif 322#endif
289 323
290#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
291# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
292# define EV_INOTIFY_HASHSIZE 1
293# else
294# define EV_INOTIFY_HASHSIZE 16
295# endif
296#endif 326#endif
297 327
298#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
299# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
301# else 331# else
302# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
303# endif 333# endif
304#endif 334#endif
305 335
306#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
309# else 339# else
310# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
311# endif 341# endif
312#endif 342#endif
313 343
… …
316# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
317# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
318#endif 348#endif
319 349
320#ifndef EV_VERIFY 350#ifndef EV_VERIFY
321# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322#endif 352#endif
323 353
324#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
325# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
326#endif 356#endif
327 357
328#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
329# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330#endif 360#endif
331 361
332/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
335# include <syscall.h> 365# include <sys/syscall.h>
336# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
337# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
338# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
339# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
340# else 370# else
… …
343# endif 373# endif
344#endif 374#endif
345 375
346/* 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 */
347 377
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
348#ifndef CLOCK_MONOTONIC 384#ifndef CLOCK_MONOTONIC
349# undef EV_USE_MONOTONIC 385# undef EV_USE_MONOTONIC
350# define EV_USE_MONOTONIC 0 386# define EV_USE_MONOTONIC 0
351#endif 387#endif
352 388
… …
359# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
360# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
361#endif 397#endif
362 398
363#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
364# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
365# include <sys/select.h> 402# include <sys/select.h>
366# endif 403# endif
367#endif 404#endif
368 405
369#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h> 407# include <sys/statfs.h>
372# include <sys/inotify.h> 408# include <sys/inotify.h>
373/* 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 */
374# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
375# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
376# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
377# endif 413# endif
378#endif
379
380#if EV_SELECT_IS_WINSOCKET
381# include <winsock.h>
382#endif 414#endif
383 415
384#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
385/* 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 */
386# include <stdint.h> 418# include <stdint.h>
… …
392# define EFD_CLOEXEC O_CLOEXEC 424# define EFD_CLOEXEC O_CLOEXEC
393# else 425# else
394# define EFD_CLOEXEC 02000000 426# define EFD_CLOEXEC 02000000
395# endif 427# endif
396# endif 428# endif
397# ifdef __cplusplus
398extern "C" {
399# endif
400int eventfd (unsigned int initval, int flags); 429EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
401# ifdef __cplusplus
402}
403# endif
404#endif 430#endif
405 431
406#if EV_USE_SIGNALFD 432#if EV_USE_SIGNALFD
407/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
408# include <stdint.h> 434# include <stdint.h>
… …
414# define SFD_CLOEXEC O_CLOEXEC 440# define SFD_CLOEXEC O_CLOEXEC
415# else 441# else
416# define SFD_CLOEXEC 02000000 442# define SFD_CLOEXEC 02000000
417# endif 443# endif
418# endif 444# endif
419# ifdef __cplusplus
420extern "C" {
421# endif
422int signalfd (int fd, const sigset_t *mask, int flags); 445EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
423 446
424struct signalfd_siginfo 447struct signalfd_siginfo
425{ 448{
426 uint32_t ssi_signo; 449 uint32_t ssi_signo;
427 char pad[128 - sizeof (uint32_t)]; 450 char pad[128 - sizeof (uint32_t)];
428}; 451};
429# ifdef __cplusplus
430}
431# endif 452#endif
432#endif
433
434 453
435/**/ 454/**/
436 455
437#if EV_VERIFY >= 3 456#if EV_VERIFY >= 3
438# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 457# define EV_FREQUENT_CHECK ev_verify (EV_A)
439#else 458#else
440# define EV_FREQUENT_CHECK do { } while (0) 459# define EV_FREQUENT_CHECK do { } while (0)
441#endif 460#endif
442 461
443/* 462/*
444 * This is used to avoid floating point rounding problems. 463 * This is used to work around floating point rounding problems.
445 * It is added to ev_rt_now when scheduling periodics
446 * to ensure progress, time-wise, even when rounding
447 * errors are against us.
448 * This value is good at least till the year 4000. 464 * This value is good at least till the year 4000.
449 * Better solutions welcome.
450 */ 465 */
451#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 */
452 468
453#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) */
454#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) */
455 471
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;
456#if __GNUC__ >= 4 516 #if __GNUC__
457# define expect(expr,value) __builtin_expect ((expr),(value)) 517 typedef signed long long int64_t;
458# 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
459#else 523#else
460# define expect(expr,value) (expr) 524 #include <inttypes.h>
461# define noinline
462# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
463# define inline
464# 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)))
465#endif 539 #endif
540#endif
466 541
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. */
467#define expect_false(expr) expect ((expr) != 0, 0) 705#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
468#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
469#define inline_size static inline 957#define inline_size ecb_inline
470 958
471#if EV_MINIMAL 959#if EV_FEATURE_CODE
960# define inline_speed ecb_inline
961#else
472# define inline_speed static noinline 962# define inline_speed static noinline
473#else
474# define inline_speed static inline
475#endif 963#endif
476 964
477#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 965#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
478 966
479#if EV_MINPRI == EV_MAXPRI 967#if EV_MINPRI == EV_MAXPRI
… …
492#define ev_active(w) ((W)(w))->active 980#define ev_active(w) ((W)(w))->active
493#define ev_at(w) ((WT)(w))->at 981#define ev_at(w) ((WT)(w))->at
494 982
495#if EV_USE_REALTIME 983#if EV_USE_REALTIME
496/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 984/* sig_atomic_t is used to avoid per-thread variables or locking but still */
497/* giving it a reasonably high chance of working on typical architetcures */ 985/* giving it a reasonably high chance of working on typical architectures */
498static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 986static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
499#endif 987#endif
500 988
501#if EV_USE_MONOTONIC 989#if EV_USE_MONOTONIC
502static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 990static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
504 992
505#ifndef EV_FD_TO_WIN32_HANDLE 993#ifndef EV_FD_TO_WIN32_HANDLE
506# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) 994# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
507#endif 995#endif
508#ifndef EV_WIN32_HANDLE_TO_FD 996#ifndef EV_WIN32_HANDLE_TO_FD
509# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) 997# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
510#endif 998#endif
511#ifndef EV_WIN32_CLOSE_FD 999#ifndef EV_WIN32_CLOSE_FD
512# define EV_WIN32_CLOSE_FD(fd) close (fd) 1000# define EV_WIN32_CLOSE_FD(fd) close (fd)
513#endif 1001#endif
514 1002
… …
516# include "ev_win32.c" 1004# include "ev_win32.c"
517#endif 1005#endif
518 1006
519/*****************************************************************************/ 1007/*****************************************************************************/
520 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
521static void (*syserr_cb)(const char *msg); 1107static void (*syserr_cb)(const char *msg) EV_THROW;
522 1108
523void 1109void ecb_cold
524ev_set_syserr_cb (void (*cb)(const char *msg)) 1110ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
525{ 1111{
526 syserr_cb = cb; 1112 syserr_cb = cb;
527} 1113}
528 1114
529static void noinline 1115static void noinline ecb_cold
530ev_syserr (const char *msg) 1116ev_syserr (const char *msg)
531{ 1117{
532 if (!msg) 1118 if (!msg)
533 msg = "(libev) system error"; 1119 msg = "(libev) system error";
534 1120
535 if (syserr_cb) 1121 if (syserr_cb)
536 syserr_cb (msg); 1122 syserr_cb (msg);
537 else 1123 else
538 { 1124 {
1125#if EV_AVOID_STDIO
1126 ev_printerr (msg);
1127 ev_printerr (": ");
1128 ev_printerr (strerror (errno));
1129 ev_printerr ("\n");
1130#else
539 perror (msg); 1131 perror (msg);
1132#endif
540 abort (); 1133 abort ();
541 } 1134 }
542} 1135}
543 1136
544static void * 1137static void *
545ev_realloc_emul (void *ptr, long size) 1138ev_realloc_emul (void *ptr, long size)
546{ 1139{
1140#if __GLIBC__
1141 return realloc (ptr, size);
1142#else
547 /* some systems, notably openbsd and darwin, fail to properly 1143 /* some systems, notably openbsd and darwin, fail to properly
548 * 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
549 * the single unix specification, so work around them here. 1145 * the single unix specification, so work around them here.
550 */ 1146 */
551 1147
552 if (size) 1148 if (size)
553 return realloc (ptr, size); 1149 return realloc (ptr, size);
554 1150
555 free (ptr); 1151 free (ptr);
556 return 0; 1152 return 0;
1153#endif
557} 1154}
558 1155
559static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1156static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
560 1157
561void 1158void ecb_cold
562ev_set_allocator (void *(*cb)(void *ptr, long size)) 1159ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
563{ 1160{
564 alloc = cb; 1161 alloc = cb;
565} 1162}
566 1163
567inline_speed void * 1164inline_speed void *
… …
569{ 1166{
570 ptr = alloc (ptr, size); 1167 ptr = alloc (ptr, size);
571 1168
572 if (!ptr && size) 1169 if (!ptr && size)
573 { 1170 {
1171#if EV_AVOID_STDIO
1172 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1173#else
574 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1174 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1175#endif
575 abort (); 1176 abort ();
576 } 1177 }
577 1178
578 return ptr; 1179 return ptr;
579} 1180}
… …
595 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 */
596 unsigned char unused; 1197 unsigned char unused;
597#if EV_USE_EPOLL 1198#if EV_USE_EPOLL
598 unsigned int egen; /* generation counter to counter epoll bugs */ 1199 unsigned int egen; /* generation counter to counter epoll bugs */
599#endif 1200#endif
600#if EV_SELECT_IS_WINSOCKET 1201#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
601 SOCKET handle; 1202 SOCKET handle;
1203#endif
1204#if EV_USE_IOCP
1205 OVERLAPPED or, ow;
602#endif 1206#endif
603} ANFD; 1207} ANFD;
604 1208
605/* stores the pending event set for a given watcher */ 1209/* stores the pending event set for a given watcher */
606typedef struct 1210typedef struct
… …
648 #undef VAR 1252 #undef VAR
649 }; 1253 };
650 #include "ev_wrap.h" 1254 #include "ev_wrap.h"
651 1255
652 static struct ev_loop default_loop_struct; 1256 static struct ev_loop default_loop_struct;
653 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 */
654 1258
655#else 1259#else
656 1260
657 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 */
658 #define VAR(name,decl) static decl; 1262 #define VAR(name,decl) static decl;
659 #include "ev_vars.h" 1263 #include "ev_vars.h"
660 #undef VAR 1264 #undef VAR
661 1265
662 static int ev_default_loop_ptr; 1266 static int ev_default_loop_ptr;
663 1267
664#endif 1268#endif
665 1269
666#if EV_MINIMAL < 2 1270#if EV_FEATURE_API
667# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1271# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
668# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1272# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
669# define EV_INVOKE_PENDING invoke_cb (EV_A) 1273# define EV_INVOKE_PENDING invoke_cb (EV_A)
670#else 1274#else
671# define EV_RELEASE_CB (void)0 1275# define EV_RELEASE_CB (void)0
672# define EV_ACQUIRE_CB (void)0 1276# define EV_ACQUIRE_CB (void)0
673# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1277# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
674#endif 1278#endif
675 1279
676#define EVUNLOOP_RECURSE 0x80 1280#define EVBREAK_RECURSE 0x80
677 1281
678/*****************************************************************************/ 1282/*****************************************************************************/
679 1283
680#ifndef EV_HAVE_EV_TIME 1284#ifndef EV_HAVE_EV_TIME
681ev_tstamp 1285ev_tstamp
682ev_time (void) 1286ev_time (void) EV_THROW
683{ 1287{
684#if EV_USE_REALTIME 1288#if EV_USE_REALTIME
685 if (expect_true (have_realtime)) 1289 if (expect_true (have_realtime))
686 { 1290 {
687 struct timespec ts; 1291 struct timespec ts;
… …
711 return ev_time (); 1315 return ev_time ();
712} 1316}
713 1317
714#if EV_MULTIPLICITY 1318#if EV_MULTIPLICITY
715ev_tstamp 1319ev_tstamp
716ev_now (EV_P) 1320ev_now (EV_P) EV_THROW
717{ 1321{
718 return ev_rt_now; 1322 return ev_rt_now;
719} 1323}
720#endif 1324#endif
721 1325
722void 1326void
723ev_sleep (ev_tstamp delay) 1327ev_sleep (ev_tstamp delay) EV_THROW
724{ 1328{
725 if (delay > 0.) 1329 if (delay > 0.)
726 { 1330 {
727#if EV_USE_NANOSLEEP 1331#if EV_USE_NANOSLEEP
728 struct timespec ts; 1332 struct timespec ts;
729 1333
730 ts.tv_sec = (time_t)delay; 1334 EV_TS_SET (ts, delay);
731 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
732
733 nanosleep (&ts, 0); 1335 nanosleep (&ts, 0);
734#elif defined(_WIN32) 1336#elif defined _WIN32
735 Sleep ((unsigned long)(delay * 1e3)); 1337 Sleep ((unsigned long)(delay * 1e3));
736#else 1338#else
737 struct timeval tv; 1339 struct timeval tv;
738 1340
739 tv.tv_sec = (time_t)delay;
740 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
741
742 /* 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 */
743 /* something not guaranteed by newer posix versions, but guaranteed */ 1342 /* something not guaranteed by newer posix versions, but guaranteed */
744 /* by older ones */ 1343 /* by older ones */
1344 EV_TV_SET (tv, delay);
745 select (0, 0, 0, 0, &tv); 1345 select (0, 0, 0, 0, &tv);
746#endif 1346#endif
747 } 1347 }
748} 1348}
749 1349
750/*****************************************************************************/ 1350/*****************************************************************************/
751 1351
752#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 */
753 1353
754/* find a suitable new size for the given array, */ 1354/* find a suitable new size for the given array, */
755/* hopefully by rounding to a ncie-to-malloc size */ 1355/* hopefully by rounding to a nice-to-malloc size */
756inline_size int 1356inline_size int
757array_nextsize (int elem, int cur, int cnt) 1357array_nextsize (int elem, int cur, int cnt)
758{ 1358{
759 int ncur = cur + 1; 1359 int ncur = cur + 1;
760 1360
761 do 1361 do
762 ncur <<= 1; 1362 ncur <<= 1;
763 while (cnt > ncur); 1363 while (cnt > ncur);
764 1364
765 /* 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 */
766 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1366 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
767 { 1367 {
768 ncur *= elem; 1368 ncur *= elem;
769 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);
770 ncur = ncur - sizeof (void *) * 4; 1370 ncur = ncur - sizeof (void *) * 4;
… …
772 } 1372 }
773 1373
774 return ncur; 1374 return ncur;
775} 1375}
776 1376
777static noinline void * 1377static void * noinline ecb_cold
778array_realloc (int elem, void *base, int *cur, int cnt) 1378array_realloc (int elem, void *base, int *cur, int cnt)
779{ 1379{
780 *cur = array_nextsize (elem, *cur, cnt); 1380 *cur = array_nextsize (elem, *cur, cnt);
781 return ev_realloc (base, elem * *cur); 1381 return ev_realloc (base, elem * *cur);
782} 1382}
… …
785 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1385 memset ((void *)(base), 0, sizeof (*(base)) * (count))
786 1386
787#define array_needsize(type,base,cur,cnt,init) \ 1387#define array_needsize(type,base,cur,cnt,init) \
788 if (expect_false ((cnt) > (cur))) \ 1388 if (expect_false ((cnt) > (cur))) \
789 { \ 1389 { \
790 int ocur_ = (cur); \ 1390 int ecb_unused ocur_ = (cur); \
791 (base) = (type *)array_realloc \ 1391 (base) = (type *)array_realloc \
792 (sizeof (type), (base), &(cur), (cnt)); \ 1392 (sizeof (type), (base), &(cur), (cnt)); \
793 init ((base) + (ocur_), (cur) - ocur_); \ 1393 init ((base) + (ocur_), (cur) - ocur_); \
794 } 1394 }
795 1395
… …
813pendingcb (EV_P_ ev_prepare *w, int revents) 1413pendingcb (EV_P_ ev_prepare *w, int revents)
814{ 1414{
815} 1415}
816 1416
817void noinline 1417void noinline
818ev_feed_event (EV_P_ void *w, int revents) 1418ev_feed_event (EV_P_ void *w, int revents) EV_THROW
819{ 1419{
820 W w_ = (W)w; 1420 W w_ = (W)w;
821 int pri = ABSPRI (w_); 1421 int pri = ABSPRI (w_);
822 1422
823 if (expect_false (w_->pending)) 1423 if (expect_false (w_->pending))
… …
827 w_->pending = ++pendingcnt [pri]; 1427 w_->pending = ++pendingcnt [pri];
828 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1428 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
829 pendings [pri][w_->pending - 1].w = w_; 1429 pendings [pri][w_->pending - 1].w = w_;
830 pendings [pri][w_->pending - 1].events = revents; 1430 pendings [pri][w_->pending - 1].events = revents;
831 } 1431 }
1432
1433 pendingpri = NUMPRI - 1;
832} 1434}
833 1435
834inline_speed void 1436inline_speed void
835feed_reverse (EV_P_ W w) 1437feed_reverse (EV_P_ W w)
836{ 1438{
… …
856} 1458}
857 1459
858/*****************************************************************************/ 1460/*****************************************************************************/
859 1461
860inline_speed void 1462inline_speed void
861fd_event_nc (EV_P_ int fd, int revents) 1463fd_event_nocheck (EV_P_ int fd, int revents)
862{ 1464{
863 ANFD *anfd = anfds + fd; 1465 ANFD *anfd = anfds + fd;
864 ev_io *w; 1466 ev_io *w;
865 1467
866 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)
… …
878fd_event (EV_P_ int fd, int revents) 1480fd_event (EV_P_ int fd, int revents)
879{ 1481{
880 ANFD *anfd = anfds + fd; 1482 ANFD *anfd = anfds + fd;
881 1483
882 if (expect_true (!anfd->reify)) 1484 if (expect_true (!anfd->reify))
883 fd_event_nc (EV_A_ fd, revents); 1485 fd_event_nocheck (EV_A_ fd, revents);
884} 1486}
885 1487
886void 1488void
887ev_feed_fd_event (EV_P_ int fd, int revents) 1489ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
888{ 1490{
889 if (fd >= 0 && fd < anfdmax) 1491 if (fd >= 0 && fd < anfdmax)
890 fd_event_nc (EV_A_ fd, revents); 1492 fd_event_nocheck (EV_A_ fd, revents);
891} 1493}
892 1494
893/* make sure the external fd watch events are in-sync */ 1495/* make sure the external fd watch events are in-sync */
894/* with the kernel/libev internal state */ 1496/* with the kernel/libev internal state */
895inline_size void 1497inline_size void
896fd_reify (EV_P) 1498fd_reify (EV_P)
897{ 1499{
898 int i; 1500 int i;
899 1501
1502#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1503 for (i = 0; i < fdchangecnt; ++i)
1504 {
1505 int fd = fdchanges [i];
1506 ANFD *anfd = anfds + fd;
1507
1508 if (anfd->reify & EV__IOFDSET && anfd->head)
1509 {
1510 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1511
1512 if (handle != anfd->handle)
1513 {
1514 unsigned long arg;
1515
1516 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1517
1518 /* handle changed, but fd didn't - we need to do it in two steps */
1519 backend_modify (EV_A_ fd, anfd->events, 0);
1520 anfd->events = 0;
1521 anfd->handle = handle;
1522 }
1523 }
1524 }
1525#endif
1526
900 for (i = 0; i < fdchangecnt; ++i) 1527 for (i = 0; i < fdchangecnt; ++i)
901 { 1528 {
902 int fd = fdchanges [i]; 1529 int fd = fdchanges [i];
903 ANFD *anfd = anfds + fd; 1530 ANFD *anfd = anfds + fd;
904 ev_io *w; 1531 ev_io *w;
905 1532
906 unsigned char events = 0; 1533 unsigned char o_events = anfd->events;
1534 unsigned char o_reify = anfd->reify;
907 1535
908 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1536 anfd->reify = 0;
909 events |= (unsigned char)w->events;
910 1537
911#if EV_SELECT_IS_WINSOCKET 1538 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
912 if (events)
913 { 1539 {
914 unsigned long arg; 1540 anfd->events = 0;
915 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1541
916 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1542 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1543 anfd->events |= (unsigned char)w->events;
1544
1545 if (o_events != anfd->events)
1546 o_reify = EV__IOFDSET; /* actually |= */
917 } 1547 }
918#endif
919 1548
920 { 1549 if (o_reify & EV__IOFDSET)
921 unsigned char o_events = anfd->events;
922 unsigned char o_reify = anfd->reify;
923
924 anfd->reify = 0;
925 anfd->events = events;
926
927 if (o_events != events || o_reify & EV__IOFDSET)
928 backend_modify (EV_A_ fd, o_events, events); 1550 backend_modify (EV_A_ fd, o_events, anfd->events);
929 }
930 } 1551 }
931 1552
932 fdchangecnt = 0; 1553 fdchangecnt = 0;
933} 1554}
934 1555
… …
946 fdchanges [fdchangecnt - 1] = fd; 1567 fdchanges [fdchangecnt - 1] = fd;
947 } 1568 }
948} 1569}
949 1570
950/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1571/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
951inline_speed void 1572inline_speed void ecb_cold
952fd_kill (EV_P_ int fd) 1573fd_kill (EV_P_ int fd)
953{ 1574{
954 ev_io *w; 1575 ev_io *w;
955 1576
956 while ((w = (ev_io *)anfds [fd].head)) 1577 while ((w = (ev_io *)anfds [fd].head))
… …
958 ev_io_stop (EV_A_ w); 1579 ev_io_stop (EV_A_ w);
959 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);
960 } 1581 }
961} 1582}
962 1583
963/* check whether the given fd is atcually valid, for error recovery */ 1584/* check whether the given fd is actually valid, for error recovery */
964inline_size int 1585inline_size int ecb_cold
965fd_valid (int fd) 1586fd_valid (int fd)
966{ 1587{
967#ifdef _WIN32 1588#ifdef _WIN32
968 return _get_osfhandle (fd) != -1; 1589 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
969#else 1590#else
970 return fcntl (fd, F_GETFD) != -1; 1591 return fcntl (fd, F_GETFD) != -1;
971#endif 1592#endif
972} 1593}
973 1594
974/* called on EBADF to verify fds */ 1595/* called on EBADF to verify fds */
975static void noinline 1596static void noinline ecb_cold
976fd_ebadf (EV_P) 1597fd_ebadf (EV_P)
977{ 1598{
978 int fd; 1599 int fd;
979 1600
980 for (fd = 0; fd < anfdmax; ++fd) 1601 for (fd = 0; fd < anfdmax; ++fd)
… …
982 if (!fd_valid (fd) && errno == EBADF) 1603 if (!fd_valid (fd) && errno == EBADF)
983 fd_kill (EV_A_ fd); 1604 fd_kill (EV_A_ fd);
984} 1605}
985 1606
986/* 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 */
987static void noinline 1608static void noinline ecb_cold
988fd_enomem (EV_P) 1609fd_enomem (EV_P)
989{ 1610{
990 int fd; 1611 int fd;
991 1612
992 for (fd = anfdmax; fd--; ) 1613 for (fd = anfdmax; fd--; )
… …
1010 anfds [fd].emask = 0; 1631 anfds [fd].emask = 0;
1011 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1632 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1012 } 1633 }
1013} 1634}
1014 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
1015/*****************************************************************************/ 1650/*****************************************************************************/
1016 1651
1017/* 1652/*
1018 * 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
1019 * 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
1020 * the branching factor of the d-tree. 1655 * the branching factor of the d-tree.
1021 */ 1656 */
1022 1657
1023/* 1658/*
… …
1171 1806
1172static ANSIG signals [EV_NSIG - 1]; 1807static ANSIG signals [EV_NSIG - 1];
1173 1808
1174/*****************************************************************************/ 1809/*****************************************************************************/
1175 1810
1176/* used to prepare libev internal fd's */ 1811#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1177/* this is not fork-safe */
1178inline_speed void
1179fd_intern (int fd)
1180{
1181#ifdef _WIN32
1182 unsigned long arg = 1;
1183 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1184#else
1185 fcntl (fd, F_SETFD, FD_CLOEXEC);
1186 fcntl (fd, F_SETFL, O_NONBLOCK);
1187#endif
1188}
1189 1812
1190static void noinline 1813static void noinline ecb_cold
1191evpipe_init (EV_P) 1814evpipe_init (EV_P)
1192{ 1815{
1193 if (!ev_is_active (&pipe_w)) 1816 if (!ev_is_active (&pipe_w))
1194 { 1817 {
1195#if EV_USE_EVENTFD 1818# if EV_USE_EVENTFD
1196 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1819 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1197 if (evfd < 0 && errno == EINVAL) 1820 if (evfd < 0 && errno == EINVAL)
1198 evfd = eventfd (0, 0); 1821 evfd = eventfd (0, 0);
1199 1822
1200 if (evfd >= 0) 1823 if (evfd >= 0)
… …
1202 evpipe [0] = -1; 1825 evpipe [0] = -1;
1203 fd_intern (evfd); /* doing it twice doesn't hurt */ 1826 fd_intern (evfd); /* doing it twice doesn't hurt */
1204 ev_io_set (&pipe_w, evfd, EV_READ); 1827 ev_io_set (&pipe_w, evfd, EV_READ);
1205 } 1828 }
1206 else 1829 else
1207#endif 1830# endif
1208 { 1831 {
1209 while (pipe (evpipe)) 1832 while (pipe (evpipe))
1210 ev_syserr ("(libev) error creating signal/async pipe"); 1833 ev_syserr ("(libev) error creating signal/async pipe");
1211 1834
1212 fd_intern (evpipe [0]); 1835 fd_intern (evpipe [0]);
… …
1217 ev_io_start (EV_A_ &pipe_w); 1840 ev_io_start (EV_A_ &pipe_w);
1218 ev_unref (EV_A); /* watcher should not keep loop alive */ 1841 ev_unref (EV_A); /* watcher should not keep loop alive */
1219 } 1842 }
1220} 1843}
1221 1844
1222inline_size void 1845inline_speed void
1223evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1846evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1224{ 1847{
1225 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)
1226 { 1862 {
1863 int old_errno;
1864
1865 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1866
1227 int old_errno = errno; /* save errno because write might clobber it */ 1867 old_errno = errno; /* save errno because write will clobber it */
1228
1229 *flag = 1;
1230 1868
1231#if EV_USE_EVENTFD 1869#if EV_USE_EVENTFD
1232 if (evfd >= 0) 1870 if (evfd >= 0)
1233 { 1871 {
1234 uint64_t counter = 1; 1872 uint64_t counter = 1;
1235 write (evfd, &counter, sizeof (uint64_t)); 1873 write (evfd, &counter, sizeof (uint64_t));
1236 } 1874 }
1237 else 1875 else
1238#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
1239 write (evpipe [1], &old_errno, 1); 1885 write (evpipe [1], &(evpipe [1]), 1);
1886#endif
1887 }
1240 1888
1241 errno = old_errno; 1889 errno = old_errno;
1242 } 1890 }
1243} 1891}
1244 1892
… …
1247static void 1895static void
1248pipecb (EV_P_ ev_io *iow, int revents) 1896pipecb (EV_P_ ev_io *iow, int revents)
1249{ 1897{
1250 int i; 1898 int i;
1251 1899
1900 if (revents & EV_READ)
1901 {
1252#if EV_USE_EVENTFD 1902#if EV_USE_EVENTFD
1253 if (evfd >= 0) 1903 if (evfd >= 0)
1254 { 1904 {
1255 uint64_t counter; 1905 uint64_t counter;
1256 read (evfd, &counter, sizeof (uint64_t)); 1906 read (evfd, &counter, sizeof (uint64_t));
1257 } 1907 }
1258 else 1908 else
1259#endif 1909#endif
1260 { 1910 {
1261 char dummy; 1911 char dummy[4];
1912#ifdef _WIN32
1913 WSABUF buf;
1914 DWORD recvd;
1915 DWORD flags = 0;
1916 buf.buf = dummy;
1917 buf.len = sizeof (dummy);
1918 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1919#else
1262 read (evpipe [0], &dummy, 1); 1920 read (evpipe [0], &dummy, sizeof (dummy));
1921#endif
1922 }
1263 } 1923 }
1264 1924
1925 pipe_write_skipped = 0;
1926
1927 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1928
1929#if EV_SIGNAL_ENABLE
1265 if (sig_pending) 1930 if (sig_pending)
1266 { 1931 {
1267 sig_pending = 0; 1932 sig_pending = 0;
1933
1934 ECB_MEMORY_FENCE_RELEASE;
1268 1935
1269 for (i = EV_NSIG - 1; i--; ) 1936 for (i = EV_NSIG - 1; i--; )
1270 if (expect_false (signals [i].pending)) 1937 if (expect_false (signals [i].pending))
1271 ev_feed_signal_event (EV_A_ i + 1); 1938 ev_feed_signal_event (EV_A_ i + 1);
1272 } 1939 }
1940#endif
1273 1941
1274#if EV_ASYNC_ENABLE 1942#if EV_ASYNC_ENABLE
1275 if (async_pending) 1943 if (async_pending)
1276 { 1944 {
1277 async_pending = 0; 1945 async_pending = 0;
1946
1947 ECB_MEMORY_FENCE_RELEASE;
1278 1948
1279 for (i = asynccnt; i--; ) 1949 for (i = asynccnt; i--; )
1280 if (asyncs [i]->sent) 1950 if (asyncs [i]->sent)
1281 { 1951 {
1282 asyncs [i]->sent = 0; 1952 asyncs [i]->sent = 0;
… …
1286#endif 1956#endif
1287} 1957}
1288 1958
1289/*****************************************************************************/ 1959/*****************************************************************************/
1290 1960
1961void
1962ev_feed_signal (int signum) EV_THROW
1963{
1964#if EV_MULTIPLICITY
1965 EV_P = signals [signum - 1].loop;
1966
1967 if (!EV_A)
1968 return;
1969#endif
1970
1971 if (!ev_active (&pipe_w))
1972 return;
1973
1974 signals [signum - 1].pending = 1;
1975 evpipe_write (EV_A_ &sig_pending);
1976}
1977
1291static void 1978static void
1292ev_sighandler (int signum) 1979ev_sighandler (int signum)
1293{ 1980{
1294#if EV_MULTIPLICITY
1295 EV_P = signals [signum - 1].loop;
1296#endif
1297
1298#if _WIN32 1981#ifdef _WIN32
1299 signal (signum, ev_sighandler); 1982 signal (signum, ev_sighandler);
1300#endif 1983#endif
1301 1984
1302 signals [signum - 1].pending = 1; 1985 ev_feed_signal (signum);
1303 evpipe_write (EV_A_ &sig_pending);
1304} 1986}
1305 1987
1306void noinline 1988void noinline
1307ev_feed_signal_event (EV_P_ int signum) 1989ev_feed_signal_event (EV_P_ int signum) EV_THROW
1308{ 1990{
1309 WL w; 1991 WL w;
1310 1992
1311 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1993 if (expect_false (signum <= 0 || signum > EV_NSIG))
1312 return; 1994 return;
… …
1345 break; 2027 break;
1346 } 2028 }
1347} 2029}
1348#endif 2030#endif
1349 2031
2032#endif
2033
1350/*****************************************************************************/ 2034/*****************************************************************************/
1351 2035
2036#if EV_CHILD_ENABLE
1352static WL childs [EV_PID_HASHSIZE]; 2037static WL childs [EV_PID_HASHSIZE];
1353
1354#ifndef _WIN32
1355 2038
1356static ev_signal childev; 2039static ev_signal childev;
1357 2040
1358#ifndef WIFCONTINUED 2041#ifndef WIFCONTINUED
1359# define WIFCONTINUED(status) 0 2042# define WIFCONTINUED(status) 0
… …
1364child_reap (EV_P_ int chain, int pid, int status) 2047child_reap (EV_P_ int chain, int pid, int status)
1365{ 2048{
1366 ev_child *w; 2049 ev_child *w;
1367 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2050 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1368 2051
1369 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2052 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1370 { 2053 {
1371 if ((w->pid == pid || !w->pid) 2054 if ((w->pid == pid || !w->pid)
1372 && (!traced || (w->flags & 1))) 2055 && (!traced || (w->flags & 1)))
1373 { 2056 {
1374 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2057 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1399 /* make sure we are called again until all children have been reaped */ 2082 /* make sure we are called again until all children have been reaped */
1400 /* we need to do it this way so that the callback gets called before we continue */ 2083 /* we need to do it this way so that the callback gets called before we continue */
1401 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2084 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1402 2085
1403 child_reap (EV_A_ pid, pid, status); 2086 child_reap (EV_A_ pid, pid, status);
1404 if (EV_PID_HASHSIZE > 1) 2087 if ((EV_PID_HASHSIZE) > 1)
1405 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2088 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1406} 2089}
1407 2090
1408#endif 2091#endif
1409 2092
1410/*****************************************************************************/ 2093/*****************************************************************************/
1411 2094
2095#if EV_USE_IOCP
2096# include "ev_iocp.c"
2097#endif
1412#if EV_USE_PORT 2098#if EV_USE_PORT
1413# include "ev_port.c" 2099# include "ev_port.c"
1414#endif 2100#endif
1415#if EV_USE_KQUEUE 2101#if EV_USE_KQUEUE
1416# include "ev_kqueue.c" 2102# include "ev_kqueue.c"
… …
1423#endif 2109#endif
1424#if EV_USE_SELECT 2110#if EV_USE_SELECT
1425# include "ev_select.c" 2111# include "ev_select.c"
1426#endif 2112#endif
1427 2113
1428int 2114int ecb_cold
1429ev_version_major (void) 2115ev_version_major (void) EV_THROW
1430{ 2116{
1431 return EV_VERSION_MAJOR; 2117 return EV_VERSION_MAJOR;
1432} 2118}
1433 2119
1434int 2120int ecb_cold
1435ev_version_minor (void) 2121ev_version_minor (void) EV_THROW
1436{ 2122{
1437 return EV_VERSION_MINOR; 2123 return EV_VERSION_MINOR;
1438} 2124}
1439 2125
1440/* return true if we are running with elevated privileges and should ignore env variables */ 2126/* return true if we are running with elevated privileges and should ignore env variables */
1441int inline_size 2127int inline_size ecb_cold
1442enable_secure (void) 2128enable_secure (void)
1443{ 2129{
1444#ifdef _WIN32 2130#ifdef _WIN32
1445 return 0; 2131 return 0;
1446#else 2132#else
1447 return getuid () != geteuid () 2133 return getuid () != geteuid ()
1448 || getgid () != getegid (); 2134 || getgid () != getegid ();
1449#endif 2135#endif
1450} 2136}
1451 2137
1452unsigned int 2138unsigned int ecb_cold
1453ev_supported_backends (void) 2139ev_supported_backends (void) EV_THROW
1454{ 2140{
1455 unsigned int flags = 0; 2141 unsigned int flags = 0;
1456 2142
1457 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2143 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1458 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2144 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1461 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2147 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1462 2148
1463 return flags; 2149 return flags;
1464} 2150}
1465 2151
1466unsigned int 2152unsigned int ecb_cold
1467ev_recommended_backends (void) 2153ev_recommended_backends (void) EV_THROW
1468{ 2154{
1469 unsigned int flags = ev_supported_backends (); 2155 unsigned int flags = ev_supported_backends ();
1470 2156
1471#ifndef __NetBSD__ 2157#ifndef __NetBSD__
1472 /* kqueue is borked on everything but netbsd apparently */ 2158 /* kqueue is borked on everything but netbsd apparently */
… …
1476#ifdef __APPLE__ 2162#ifdef __APPLE__
1477 /* only select works correctly on that "unix-certified" platform */ 2163 /* only select works correctly on that "unix-certified" platform */
1478 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2164 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1479 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2165 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1480#endif 2166#endif
2167#ifdef __FreeBSD__
2168 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2169#endif
1481 2170
1482 return flags; 2171 return flags;
1483} 2172}
1484 2173
2174unsigned int ecb_cold
2175ev_embeddable_backends (void) EV_THROW
2176{
2177 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2178
2179 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2180 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2181 flags &= ~EVBACKEND_EPOLL;
2182
2183 return flags;
2184}
2185
1485unsigned int 2186unsigned int
1486ev_embeddable_backends (void) 2187ev_backend (EV_P) EV_THROW
1487{ 2188{
1488 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2189 return backend;
1489
1490 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1491 /* please fix it and tell me how to detect the fix */
1492 flags &= ~EVBACKEND_EPOLL;
1493
1494 return flags;
1495} 2190}
1496 2191
2192#if EV_FEATURE_API
1497unsigned int 2193unsigned int
1498ev_backend (EV_P) 2194ev_iteration (EV_P) EV_THROW
1499{ 2195{
1500 return backend; 2196 return loop_count;
1501} 2197}
1502 2198
1503#if EV_MINIMAL < 2
1504unsigned int 2199unsigned int
1505ev_loop_count (EV_P) 2200ev_depth (EV_P) EV_THROW
1506{
1507 return loop_count;
1508}
1509
1510unsigned int
1511ev_loop_depth (EV_P)
1512{ 2201{
1513 return loop_depth; 2202 return loop_depth;
1514} 2203}
1515 2204
1516void 2205void
1517ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1518{ 2207{
1519 io_blocktime = interval; 2208 io_blocktime = interval;
1520} 2209}
1521 2210
1522void 2211void
1523ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2212ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1524{ 2213{
1525 timeout_blocktime = interval; 2214 timeout_blocktime = interval;
1526} 2215}
1527 2216
1528void 2217void
1529ev_set_userdata (EV_P_ void *data) 2218ev_set_userdata (EV_P_ void *data) EV_THROW
1530{ 2219{
1531 userdata = data; 2220 userdata = data;
1532} 2221}
1533 2222
1534void * 2223void *
1535ev_userdata (EV_P) 2224ev_userdata (EV_P) EV_THROW
1536{ 2225{
1537 return userdata; 2226 return userdata;
1538} 2227}
1539 2228
2229void
1540void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2230ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1541{ 2231{
1542 invoke_cb = invoke_pending_cb; 2232 invoke_cb = invoke_pending_cb;
1543} 2233}
1544 2234
2235void
1545void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2236ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1546{ 2237{
1547 release_cb = release; 2238 release_cb = release;
1548 acquire_cb = acquire; 2239 acquire_cb = acquire;
1549} 2240}
1550#endif 2241#endif
1551 2242
1552/* initialise a loop structure, must be zero-initialised */ 2243/* initialise a loop structure, must be zero-initialised */
1553static void noinline 2244static void noinline ecb_cold
1554loop_init (EV_P_ unsigned int flags) 2245loop_init (EV_P_ unsigned int flags) EV_THROW
1555{ 2246{
1556 if (!backend) 2247 if (!backend)
1557 { 2248 {
2249 origflags = flags;
2250
1558#if EV_USE_REALTIME 2251#if EV_USE_REALTIME
1559 if (!have_realtime) 2252 if (!have_realtime)
1560 { 2253 {
1561 struct timespec ts; 2254 struct timespec ts;
1562 2255
… …
1584 if (!(flags & EVFLAG_NOENV) 2277 if (!(flags & EVFLAG_NOENV)
1585 && !enable_secure () 2278 && !enable_secure ()
1586 && getenv ("LIBEV_FLAGS")) 2279 && getenv ("LIBEV_FLAGS"))
1587 flags = atoi (getenv ("LIBEV_FLAGS")); 2280 flags = atoi (getenv ("LIBEV_FLAGS"));
1588 2281
1589 ev_rt_now = ev_time (); 2282 ev_rt_now = ev_time ();
1590 mn_now = get_clock (); 2283 mn_now = get_clock ();
1591 now_floor = mn_now; 2284 now_floor = mn_now;
1592 rtmn_diff = ev_rt_now - mn_now; 2285 rtmn_diff = ev_rt_now - mn_now;
1593#if EV_MINIMAL < 2 2286#if EV_FEATURE_API
1594 invoke_cb = ev_invoke_pending; 2287 invoke_cb = ev_invoke_pending;
1595#endif 2288#endif
1596 2289
1597 io_blocktime = 0.; 2290 io_blocktime = 0.;
1598 timeout_blocktime = 0.; 2291 timeout_blocktime = 0.;
1599 backend = 0; 2292 backend = 0;
1600 backend_fd = -1; 2293 backend_fd = -1;
1601 sig_pending = 0; 2294 sig_pending = 0;
1602#if EV_ASYNC_ENABLE 2295#if EV_ASYNC_ENABLE
1603 async_pending = 0; 2296 async_pending = 0;
1604#endif 2297#endif
2298 pipe_write_skipped = 0;
2299 pipe_write_wanted = 0;
1605#if EV_USE_INOTIFY 2300#if EV_USE_INOTIFY
1606 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2301 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1607#endif 2302#endif
1608#if EV_USE_SIGNALFD 2303#if EV_USE_SIGNALFD
1609 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; 2304 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1610#endif 2305#endif
1611 2306
1612 if (!(flags & 0x0000ffffU)) 2307 if (!(flags & EVBACKEND_MASK))
1613 flags |= ev_recommended_backends (); 2308 flags |= ev_recommended_backends ();
1614 2309
2310#if EV_USE_IOCP
2311 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2312#endif
1615#if EV_USE_PORT 2313#if EV_USE_PORT
1616 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2314 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1617#endif 2315#endif
1618#if EV_USE_KQUEUE 2316#if EV_USE_KQUEUE
1619 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1628 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2326 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1629#endif 2327#endif
1630 2328
1631 ev_prepare_init (&pending_w, pendingcb); 2329 ev_prepare_init (&pending_w, pendingcb);
1632 2330
2331#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1633 ev_init (&pipe_w, pipecb); 2332 ev_init (&pipe_w, pipecb);
1634 ev_set_priority (&pipe_w, EV_MAXPRI); 2333 ev_set_priority (&pipe_w, EV_MAXPRI);
2334#endif
1635 } 2335 }
1636} 2336}
1637 2337
1638/* free up a loop structure */ 2338/* free up a loop structure */
1639static void noinline 2339void ecb_cold
1640loop_destroy (EV_P) 2340ev_loop_destroy (EV_P)
1641{ 2341{
1642 int i; 2342 int i;
2343
2344#if EV_MULTIPLICITY
2345 /* mimic free (0) */
2346 if (!EV_A)
2347 return;
2348#endif
2349
2350#if EV_CLEANUP_ENABLE
2351 /* queue cleanup watchers (and execute them) */
2352 if (expect_false (cleanupcnt))
2353 {
2354 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2355 EV_INVOKE_PENDING;
2356 }
2357#endif
2358
2359#if EV_CHILD_ENABLE
2360 if (ev_is_active (&childev))
2361 {
2362 ev_ref (EV_A); /* child watcher */
2363 ev_signal_stop (EV_A_ &childev);
2364 }
2365#endif
1643 2366
1644 if (ev_is_active (&pipe_w)) 2367 if (ev_is_active (&pipe_w))
1645 { 2368 {
1646 /*ev_ref (EV_A);*/ 2369 /*ev_ref (EV_A);*/
1647 /*ev_io_stop (EV_A_ &pipe_w);*/ 2370 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1669#endif 2392#endif
1670 2393
1671 if (backend_fd >= 0) 2394 if (backend_fd >= 0)
1672 close (backend_fd); 2395 close (backend_fd);
1673 2396
2397#if EV_USE_IOCP
2398 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2399#endif
1674#if EV_USE_PORT 2400#if EV_USE_PORT
1675 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2401 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1676#endif 2402#endif
1677#if EV_USE_KQUEUE 2403#if EV_USE_KQUEUE
1678 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2404 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1705 array_free (periodic, EMPTY); 2431 array_free (periodic, EMPTY);
1706#endif 2432#endif
1707#if EV_FORK_ENABLE 2433#if EV_FORK_ENABLE
1708 array_free (fork, EMPTY); 2434 array_free (fork, EMPTY);
1709#endif 2435#endif
2436#if EV_CLEANUP_ENABLE
2437 array_free (cleanup, EMPTY);
2438#endif
1710 array_free (prepare, EMPTY); 2439 array_free (prepare, EMPTY);
1711 array_free (check, EMPTY); 2440 array_free (check, EMPTY);
1712#if EV_ASYNC_ENABLE 2441#if EV_ASYNC_ENABLE
1713 array_free (async, EMPTY); 2442 array_free (async, EMPTY);
1714#endif 2443#endif
1715 2444
1716 backend = 0; 2445 backend = 0;
2446
2447#if EV_MULTIPLICITY
2448 if (ev_is_default_loop (EV_A))
2449#endif
2450 ev_default_loop_ptr = 0;
2451#if EV_MULTIPLICITY
2452 else
2453 ev_free (EV_A);
2454#endif
1717} 2455}
1718 2456
1719#if EV_USE_INOTIFY 2457#if EV_USE_INOTIFY
1720inline_size void infy_fork (EV_P); 2458inline_size void infy_fork (EV_P);
1721#endif 2459#endif
… …
1736 infy_fork (EV_A); 2474 infy_fork (EV_A);
1737#endif 2475#endif
1738 2476
1739 if (ev_is_active (&pipe_w)) 2477 if (ev_is_active (&pipe_w))
1740 { 2478 {
1741 /* this "locks" the handlers against writing to the pipe */ 2479 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1742 /* while we modify the fd vars */
1743 sig_pending = 1;
1744#if EV_ASYNC_ENABLE
1745 async_pending = 1;
1746#endif
1747 2480
1748 ev_ref (EV_A); 2481 ev_ref (EV_A);
1749 ev_io_stop (EV_A_ &pipe_w); 2482 ev_io_stop (EV_A_ &pipe_w);
1750 2483
1751#if EV_USE_EVENTFD 2484#if EV_USE_EVENTFD
… …
1757 { 2490 {
1758 EV_WIN32_CLOSE_FD (evpipe [0]); 2491 EV_WIN32_CLOSE_FD (evpipe [0]);
1759 EV_WIN32_CLOSE_FD (evpipe [1]); 2492 EV_WIN32_CLOSE_FD (evpipe [1]);
1760 } 2493 }
1761 2494
2495#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1762 evpipe_init (EV_A); 2496 evpipe_init (EV_A);
1763 /* now iterate over everything, in case we missed something */ 2497 /* now iterate over everything, in case we missed something */
1764 pipecb (EV_A_ &pipe_w, EV_READ); 2498 pipecb (EV_A_ &pipe_w, EV_READ);
2499#endif
1765 } 2500 }
1766 2501
1767 postfork = 0; 2502 postfork = 0;
1768} 2503}
1769 2504
1770#if EV_MULTIPLICITY 2505#if EV_MULTIPLICITY
1771 2506
1772struct ev_loop * 2507struct ev_loop * ecb_cold
1773ev_loop_new (unsigned int flags) 2508ev_loop_new (unsigned int flags) EV_THROW
1774{ 2509{
1775 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2510 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1776 2511
1777 memset (EV_A, 0, sizeof (struct ev_loop)); 2512 memset (EV_A, 0, sizeof (struct ev_loop));
1778 loop_init (EV_A_ flags); 2513 loop_init (EV_A_ flags);
1779 2514
1780 if (ev_backend (EV_A)) 2515 if (ev_backend (EV_A))
1781 return EV_A; 2516 return EV_A;
1782 2517
2518 ev_free (EV_A);
1783 return 0; 2519 return 0;
1784} 2520}
1785 2521
1786void
1787ev_loop_destroy (EV_P)
1788{
1789 loop_destroy (EV_A);
1790 ev_free (loop);
1791}
1792
1793void
1794ev_loop_fork (EV_P)
1795{
1796 postfork = 1; /* must be in line with ev_default_fork */
1797}
1798#endif /* multiplicity */ 2522#endif /* multiplicity */
1799 2523
1800#if EV_VERIFY 2524#if EV_VERIFY
1801static void noinline 2525static void noinline ecb_cold
1802verify_watcher (EV_P_ W w) 2526verify_watcher (EV_P_ W w)
1803{ 2527{
1804 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2528 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1805 2529
1806 if (w->pending) 2530 if (w->pending)
1807 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2531 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1808} 2532}
1809 2533
1810static void noinline 2534static void noinline ecb_cold
1811verify_heap (EV_P_ ANHE *heap, int N) 2535verify_heap (EV_P_ ANHE *heap, int N)
1812{ 2536{
1813 int i; 2537 int i;
1814 2538
1815 for (i = HEAP0; i < N + HEAP0; ++i) 2539 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1820 2544
1821 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2545 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1822 } 2546 }
1823} 2547}
1824 2548
1825static void noinline 2549static void noinline ecb_cold
1826array_verify (EV_P_ W *ws, int cnt) 2550array_verify (EV_P_ W *ws, int cnt)
1827{ 2551{
1828 while (cnt--) 2552 while (cnt--)
1829 { 2553 {
1830 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2554 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1831 verify_watcher (EV_A_ ws [cnt]); 2555 verify_watcher (EV_A_ ws [cnt]);
1832 } 2556 }
1833} 2557}
1834#endif 2558#endif
1835 2559
1836#if EV_MINIMAL < 2 2560#if EV_FEATURE_API
1837void 2561void ecb_cold
1838ev_loop_verify (EV_P) 2562ev_verify (EV_P) EV_THROW
1839{ 2563{
1840#if EV_VERIFY 2564#if EV_VERIFY
1841 int i; 2565 int i;
1842 WL w; 2566 WL w, w2;
1843 2567
1844 assert (activecnt >= -1); 2568 assert (activecnt >= -1);
1845 2569
1846 assert (fdchangemax >= fdchangecnt); 2570 assert (fdchangemax >= fdchangecnt);
1847 for (i = 0; i < fdchangecnt; ++i) 2571 for (i = 0; i < fdchangecnt; ++i)
1848 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2572 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1849 2573
1850 assert (anfdmax >= 0); 2574 assert (anfdmax >= 0);
1851 for (i = 0; i < anfdmax; ++i) 2575 for (i = 0; i < anfdmax; ++i)
2576 {
2577 int j = 0;
2578
1852 for (w = anfds [i].head; w; w = w->next) 2579 for (w = w2 = anfds [i].head; w; w = w->next)
1853 { 2580 {
1854 verify_watcher (EV_A_ (W)w); 2581 verify_watcher (EV_A_ (W)w);
2582
2583 if (j++ & 1)
2584 {
2585 assert (("libev: io watcher list contains a loop", w != w2));
2586 w2 = w2->next;
2587 }
2588
1855 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2589 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1856 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2590 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1857 } 2591 }
2592 }
1858 2593
1859 assert (timermax >= timercnt); 2594 assert (timermax >= timercnt);
1860 verify_heap (EV_A_ timers, timercnt); 2595 verify_heap (EV_A_ timers, timercnt);
1861 2596
1862#if EV_PERIODIC_ENABLE 2597#if EV_PERIODIC_ENABLE
… …
1877#if EV_FORK_ENABLE 2612#if EV_FORK_ENABLE
1878 assert (forkmax >= forkcnt); 2613 assert (forkmax >= forkcnt);
1879 array_verify (EV_A_ (W *)forks, forkcnt); 2614 array_verify (EV_A_ (W *)forks, forkcnt);
1880#endif 2615#endif
1881 2616
2617#if EV_CLEANUP_ENABLE
2618 assert (cleanupmax >= cleanupcnt);
2619 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2620#endif
2621
1882#if EV_ASYNC_ENABLE 2622#if EV_ASYNC_ENABLE
1883 assert (asyncmax >= asynccnt); 2623 assert (asyncmax >= asynccnt);
1884 array_verify (EV_A_ (W *)asyncs, asynccnt); 2624 array_verify (EV_A_ (W *)asyncs, asynccnt);
1885#endif 2625#endif
1886 2626
2627#if EV_PREPARE_ENABLE
1887 assert (preparemax >= preparecnt); 2628 assert (preparemax >= preparecnt);
1888 array_verify (EV_A_ (W *)prepares, preparecnt); 2629 array_verify (EV_A_ (W *)prepares, preparecnt);
2630#endif
1889 2631
2632#if EV_CHECK_ENABLE
1890 assert (checkmax >= checkcnt); 2633 assert (checkmax >= checkcnt);
1891 array_verify (EV_A_ (W *)checks, checkcnt); 2634 array_verify (EV_A_ (W *)checks, checkcnt);
2635#endif
1892 2636
1893# if 0 2637# if 0
2638#if EV_CHILD_ENABLE
1894 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2639 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1895 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2640 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2641#endif
1896# endif 2642# endif
1897#endif 2643#endif
1898} 2644}
1899#endif 2645#endif
1900 2646
1901#if EV_MULTIPLICITY 2647#if EV_MULTIPLICITY
1902struct ev_loop * 2648struct ev_loop * ecb_cold
1903ev_default_loop_init (unsigned int flags)
1904#else 2649#else
1905int 2650int
2651#endif
1906ev_default_loop (unsigned int flags) 2652ev_default_loop (unsigned int flags) EV_THROW
1907#endif
1908{ 2653{
1909 if (!ev_default_loop_ptr) 2654 if (!ev_default_loop_ptr)
1910 { 2655 {
1911#if EV_MULTIPLICITY 2656#if EV_MULTIPLICITY
1912 EV_P = ev_default_loop_ptr = &default_loop_struct; 2657 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1916 2661
1917 loop_init (EV_A_ flags); 2662 loop_init (EV_A_ flags);
1918 2663
1919 if (ev_backend (EV_A)) 2664 if (ev_backend (EV_A))
1920 { 2665 {
1921#ifndef _WIN32 2666#if EV_CHILD_ENABLE
1922 ev_signal_init (&childev, childcb, SIGCHLD); 2667 ev_signal_init (&childev, childcb, SIGCHLD);
1923 ev_set_priority (&childev, EV_MAXPRI); 2668 ev_set_priority (&childev, EV_MAXPRI);
1924 ev_signal_start (EV_A_ &childev); 2669 ev_signal_start (EV_A_ &childev);
1925 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2670 ev_unref (EV_A); /* child watcher should not keep loop alive */
1926#endif 2671#endif
… …
1931 2676
1932 return ev_default_loop_ptr; 2677 return ev_default_loop_ptr;
1933} 2678}
1934 2679
1935void 2680void
1936ev_default_destroy (void) 2681ev_loop_fork (EV_P) EV_THROW
1937{ 2682{
1938#if EV_MULTIPLICITY
1939 EV_P = ev_default_loop_ptr;
1940#endif
1941
1942 ev_default_loop_ptr = 0;
1943
1944#ifndef _WIN32
1945 ev_ref (EV_A); /* child watcher */
1946 ev_signal_stop (EV_A_ &childev);
1947#endif
1948
1949 loop_destroy (EV_A);
1950}
1951
1952void
1953ev_default_fork (void)
1954{
1955#if EV_MULTIPLICITY
1956 EV_P = ev_default_loop_ptr;
1957#endif
1958
1959 postfork = 1; /* must be in line with ev_loop_fork */ 2683 postfork = 1; /* must be in line with ev_default_fork */
1960} 2684}
1961 2685
1962/*****************************************************************************/ 2686/*****************************************************************************/
1963 2687
1964void 2688void
… …
1966{ 2690{
1967 EV_CB_INVOKE ((W)w, revents); 2691 EV_CB_INVOKE ((W)w, revents);
1968} 2692}
1969 2693
1970unsigned int 2694unsigned int
1971ev_pending_count (EV_P) 2695ev_pending_count (EV_P) EV_THROW
1972{ 2696{
1973 int pri; 2697 int pri;
1974 unsigned int count = 0; 2698 unsigned int count = 0;
1975 2699
1976 for (pri = NUMPRI; pri--; ) 2700 for (pri = NUMPRI; pri--; )
… …
1980} 2704}
1981 2705
1982void noinline 2706void noinline
1983ev_invoke_pending (EV_P) 2707ev_invoke_pending (EV_P)
1984{ 2708{
1985 int pri; 2709 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1986
1987 for (pri = NUMPRI; pri--; )
1988 while (pendingcnt [pri]) 2710 while (pendingcnt [pendingpri])
1989 { 2711 {
1990 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2712 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1991
1992 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1993 /* ^ this is no longer true, as pending_w could be here */
1994 2713
1995 p->w->pending = 0; 2714 p->w->pending = 0;
1996 EV_CB_INVOKE (p->w, p->events); 2715 EV_CB_INVOKE (p->w, p->events);
1997 EV_FREQUENT_CHECK; 2716 EV_FREQUENT_CHECK;
1998 } 2717 }
… …
2055 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2056 feed_reverse (EV_A_ (W)w); 2775 feed_reverse (EV_A_ (W)w);
2057 } 2776 }
2058 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2777 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2059 2778
2060 feed_reverse_done (EV_A_ EV_TIMEOUT); 2779 feed_reverse_done (EV_A_ EV_TIMER);
2061 } 2780 }
2062} 2781}
2063 2782
2064#if EV_PERIODIC_ENABLE 2783#if EV_PERIODIC_ENABLE
2784
2785static void noinline
2786periodic_recalc (EV_P_ ev_periodic *w)
2787{
2788 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2789 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2790
2791 /* the above almost always errs on the low side */
2792 while (at <= ev_rt_now)
2793 {
2794 ev_tstamp nat = at + w->interval;
2795
2796 /* when resolution fails us, we use ev_rt_now */
2797 if (expect_false (nat == at))
2798 {
2799 at = ev_rt_now;
2800 break;
2801 }
2802
2803 at = nat;
2804 }
2805
2806 ev_at (w) = at;
2807}
2808
2065/* make periodics pending */ 2809/* make periodics pending */
2066inline_size void 2810inline_size void
2067periodics_reify (EV_P) 2811periodics_reify (EV_P)
2068{ 2812{
2069 EV_FREQUENT_CHECK; 2813 EV_FREQUENT_CHECK;
… …
2088 ANHE_at_cache (periodics [HEAP0]); 2832 ANHE_at_cache (periodics [HEAP0]);
2089 downheap (periodics, periodiccnt, HEAP0); 2833 downheap (periodics, periodiccnt, HEAP0);
2090 } 2834 }
2091 else if (w->interval) 2835 else if (w->interval)
2092 { 2836 {
2093 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2837 periodic_recalc (EV_A_ w);
2094 /* if next trigger time is not sufficiently in the future, put it there */
2095 /* this might happen because of floating point inexactness */
2096 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2097 {
2098 ev_at (w) += w->interval;
2099
2100 /* if interval is unreasonably low we might still have a time in the past */
2101 /* so correct this. this will make the periodic very inexact, but the user */
2102 /* has effectively asked to get triggered more often than possible */
2103 if (ev_at (w) < ev_rt_now)
2104 ev_at (w) = ev_rt_now;
2105 }
2106
2107 ANHE_at_cache (periodics [HEAP0]); 2838 ANHE_at_cache (periodics [HEAP0]);
2108 downheap (periodics, periodiccnt, HEAP0); 2839 downheap (periodics, periodiccnt, HEAP0);
2109 } 2840 }
2110 else 2841 else
2111 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2842 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2118 feed_reverse_done (EV_A_ EV_PERIODIC); 2849 feed_reverse_done (EV_A_ EV_PERIODIC);
2119 } 2850 }
2120} 2851}
2121 2852
2122/* simply recalculate all periodics */ 2853/* simply recalculate all periodics */
2123/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2854/* TODO: maybe ensure that at least one event happens when jumping forward? */
2124static void noinline 2855static void noinline ecb_cold
2125periodics_reschedule (EV_P) 2856periodics_reschedule (EV_P)
2126{ 2857{
2127 int i; 2858 int i;
2128 2859
2129 /* adjust periodics after time jump */ 2860 /* adjust periodics after time jump */
… …
2132 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2863 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2133 2864
2134 if (w->reschedule_cb) 2865 if (w->reschedule_cb)
2135 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2866 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2136 else if (w->interval) 2867 else if (w->interval)
2137 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2868 periodic_recalc (EV_A_ w);
2138 2869
2139 ANHE_at_cache (periodics [i]); 2870 ANHE_at_cache (periodics [i]);
2140 } 2871 }
2141 2872
2142 reheap (periodics, periodiccnt); 2873 reheap (periodics, periodiccnt);
2143} 2874}
2144#endif 2875#endif
2145 2876
2146/* adjust all timers by a given offset */ 2877/* adjust all timers by a given offset */
2147static void noinline 2878static void noinline ecb_cold
2148timers_reschedule (EV_P_ ev_tstamp adjust) 2879timers_reschedule (EV_P_ ev_tstamp adjust)
2149{ 2880{
2150 int i; 2881 int i;
2151 2882
2152 for (i = 0; i < timercnt; ++i) 2883 for (i = 0; i < timercnt; ++i)
… …
2156 ANHE_at_cache (*he); 2887 ANHE_at_cache (*he);
2157 } 2888 }
2158} 2889}
2159 2890
2160/* fetch new monotonic and realtime times from the kernel */ 2891/* fetch new monotonic and realtime times from the kernel */
2161/* also detetc if there was a timejump, and act accordingly */ 2892/* also detect if there was a timejump, and act accordingly */
2162inline_speed void 2893inline_speed void
2163time_update (EV_P_ ev_tstamp max_block) 2894time_update (EV_P_ ev_tstamp max_block)
2164{ 2895{
2165#if EV_USE_MONOTONIC 2896#if EV_USE_MONOTONIC
2166 if (expect_true (have_monotonic)) 2897 if (expect_true (have_monotonic))
… …
2189 * doesn't hurt either as we only do this on time-jumps or 2920 * doesn't hurt either as we only do this on time-jumps or
2190 * in the unlikely event of having been preempted here. 2921 * in the unlikely event of having been preempted here.
2191 */ 2922 */
2192 for (i = 4; --i; ) 2923 for (i = 4; --i; )
2193 { 2924 {
2925 ev_tstamp diff;
2194 rtmn_diff = ev_rt_now - mn_now; 2926 rtmn_diff = ev_rt_now - mn_now;
2195 2927
2928 diff = odiff - rtmn_diff;
2929
2196 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2930 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2197 return; /* all is well */ 2931 return; /* all is well */
2198 2932
2199 ev_rt_now = ev_time (); 2933 ev_rt_now = ev_time ();
2200 mn_now = get_clock (); 2934 mn_now = get_clock ();
2201 now_floor = mn_now; 2935 now_floor = mn_now;
… …
2223 2957
2224 mn_now = ev_rt_now; 2958 mn_now = ev_rt_now;
2225 } 2959 }
2226} 2960}
2227 2961
2228void 2962int
2229ev_loop (EV_P_ int flags) 2963ev_run (EV_P_ int flags)
2230{ 2964{
2231#if EV_MINIMAL < 2 2965#if EV_FEATURE_API
2232 ++loop_depth; 2966 ++loop_depth;
2233#endif 2967#endif
2234 2968
2235 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2969 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2236 2970
2237 loop_done = EVUNLOOP_CANCEL; 2971 loop_done = EVBREAK_CANCEL;
2238 2972
2239 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2973 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2240 2974
2241 do 2975 do
2242 { 2976 {
2243#if EV_VERIFY >= 2 2977#if EV_VERIFY >= 2
2244 ev_loop_verify (EV_A); 2978 ev_verify (EV_A);
2245#endif 2979#endif
2246 2980
2247#ifndef _WIN32 2981#ifndef _WIN32
2248 if (expect_false (curpid)) /* penalise the forking check even more */ 2982 if (expect_false (curpid)) /* penalise the forking check even more */
2249 if (expect_false (getpid () != curpid)) 2983 if (expect_false (getpid () != curpid))
… …
2261 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2995 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2262 EV_INVOKE_PENDING; 2996 EV_INVOKE_PENDING;
2263 } 2997 }
2264#endif 2998#endif
2265 2999
3000#if EV_PREPARE_ENABLE
2266 /* queue prepare watchers (and execute them) */ 3001 /* queue prepare watchers (and execute them) */
2267 if (expect_false (preparecnt)) 3002 if (expect_false (preparecnt))
2268 { 3003 {
2269 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3004 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2270 EV_INVOKE_PENDING; 3005 EV_INVOKE_PENDING;
2271 } 3006 }
3007#endif
2272 3008
2273 if (expect_false (loop_done)) 3009 if (expect_false (loop_done))
2274 break; 3010 break;
2275 3011
2276 /* we might have forked, so reify kernel state if necessary */ 3012 /* we might have forked, so reify kernel state if necessary */
… …
2283 /* calculate blocking time */ 3019 /* calculate blocking time */
2284 { 3020 {
2285 ev_tstamp waittime = 0.; 3021 ev_tstamp waittime = 0.;
2286 ev_tstamp sleeptime = 0.; 3022 ev_tstamp sleeptime = 0.;
2287 3023
3024 /* remember old timestamp for io_blocktime calculation */
3025 ev_tstamp prev_mn_now = mn_now;
3026
3027 /* update time to cancel out callback processing overhead */
3028 time_update (EV_A_ 1e100);
3029
3030 /* from now on, we want a pipe-wake-up */
3031 pipe_write_wanted = 1;
3032
3033 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3034
2288 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3035 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2289 { 3036 {
2290 /* remember old timestamp for io_blocktime calculation */
2291 ev_tstamp prev_mn_now = mn_now;
2292
2293 /* update time to cancel out callback processing overhead */
2294 time_update (EV_A_ 1e100);
2295
2296 waittime = MAX_BLOCKTIME; 3037 waittime = MAX_BLOCKTIME;
2297 3038
2298 if (timercnt) 3039 if (timercnt)
2299 { 3040 {
2300 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3041 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2301 if (waittime > to) waittime = to; 3042 if (waittime > to) waittime = to;
2302 } 3043 }
2303 3044
2304#if EV_PERIODIC_ENABLE 3045#if EV_PERIODIC_ENABLE
2305 if (periodiccnt) 3046 if (periodiccnt)
2306 { 3047 {
2307 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3048 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2308 if (waittime > to) waittime = to; 3049 if (waittime > to) waittime = to;
2309 } 3050 }
2310#endif 3051#endif
2311 3052
2312 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3053 /* don't let timeouts decrease the waittime below timeout_blocktime */
2313 if (expect_false (waittime < timeout_blocktime)) 3054 if (expect_false (waittime < timeout_blocktime))
2314 waittime = timeout_blocktime; 3055 waittime = timeout_blocktime;
3056
3057 /* at this point, we NEED to wait, so we have to ensure */
3058 /* to pass a minimum nonzero value to the backend */
3059 if (expect_false (waittime < backend_mintime))
3060 waittime = backend_mintime;
2315 3061
2316 /* extra check because io_blocktime is commonly 0 */ 3062 /* extra check because io_blocktime is commonly 0 */
2317 if (expect_false (io_blocktime)) 3063 if (expect_false (io_blocktime))
2318 { 3064 {
2319 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3065 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2320 3066
2321 if (sleeptime > waittime - backend_fudge) 3067 if (sleeptime > waittime - backend_mintime)
2322 sleeptime = waittime - backend_fudge; 3068 sleeptime = waittime - backend_mintime;
2323 3069
2324 if (expect_true (sleeptime > 0.)) 3070 if (expect_true (sleeptime > 0.))
2325 { 3071 {
2326 ev_sleep (sleeptime); 3072 ev_sleep (sleeptime);
2327 waittime -= sleeptime; 3073 waittime -= sleeptime;
2328 } 3074 }
2329 } 3075 }
2330 } 3076 }
2331 3077
2332#if EV_MINIMAL < 2 3078#if EV_FEATURE_API
2333 ++loop_count; 3079 ++loop_count;
2334#endif 3080#endif
2335 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3081 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2336 backend_poll (EV_A_ waittime); 3082 backend_poll (EV_A_ waittime);
2337 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3083 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3084
3085 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3086
3087 if (pipe_write_skipped)
3088 {
3089 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3090 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3091 }
3092
2338 3093
2339 /* update ev_rt_now, do magic */ 3094 /* update ev_rt_now, do magic */
2340 time_update (EV_A_ waittime + sleeptime); 3095 time_update (EV_A_ waittime + sleeptime);
2341 } 3096 }
2342 3097
… …
2349#if EV_IDLE_ENABLE 3104#if EV_IDLE_ENABLE
2350 /* queue idle watchers unless other events are pending */ 3105 /* queue idle watchers unless other events are pending */
2351 idle_reify (EV_A); 3106 idle_reify (EV_A);
2352#endif 3107#endif
2353 3108
3109#if EV_CHECK_ENABLE
2354 /* queue check watchers, to be executed first */ 3110 /* queue check watchers, to be executed first */
2355 if (expect_false (checkcnt)) 3111 if (expect_false (checkcnt))
2356 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3112 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3113#endif
2357 3114
2358 EV_INVOKE_PENDING; 3115 EV_INVOKE_PENDING;
2359 } 3116 }
2360 while (expect_true ( 3117 while (expect_true (
2361 activecnt 3118 activecnt
2362 && !loop_done 3119 && !loop_done
2363 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3120 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2364 )); 3121 ));
2365 3122
2366 if (loop_done == EVUNLOOP_ONE) 3123 if (loop_done == EVBREAK_ONE)
2367 loop_done = EVUNLOOP_CANCEL; 3124 loop_done = EVBREAK_CANCEL;
2368 3125
2369#if EV_MINIMAL < 2 3126#if EV_FEATURE_API
2370 --loop_depth; 3127 --loop_depth;
2371#endif 3128#endif
3129
3130 return activecnt;
2372} 3131}
2373 3132
2374void 3133void
2375ev_unloop (EV_P_ int how) 3134ev_break (EV_P_ int how) EV_THROW
2376{ 3135{
2377 loop_done = how; 3136 loop_done = how;
2378} 3137}
2379 3138
2380void 3139void
2381ev_ref (EV_P) 3140ev_ref (EV_P) EV_THROW
2382{ 3141{
2383 ++activecnt; 3142 ++activecnt;
2384} 3143}
2385 3144
2386void 3145void
2387ev_unref (EV_P) 3146ev_unref (EV_P) EV_THROW
2388{ 3147{
2389 --activecnt; 3148 --activecnt;
2390} 3149}
2391 3150
2392void 3151void
2393ev_now_update (EV_P) 3152ev_now_update (EV_P) EV_THROW
2394{ 3153{
2395 time_update (EV_A_ 1e100); 3154 time_update (EV_A_ 1e100);
2396} 3155}
2397 3156
2398void 3157void
2399ev_suspend (EV_P) 3158ev_suspend (EV_P) EV_THROW
2400{ 3159{
2401 ev_now_update (EV_A); 3160 ev_now_update (EV_A);
2402} 3161}
2403 3162
2404void 3163void
2405ev_resume (EV_P) 3164ev_resume (EV_P) EV_THROW
2406{ 3165{
2407 ev_tstamp mn_prev = mn_now; 3166 ev_tstamp mn_prev = mn_now;
2408 3167
2409 ev_now_update (EV_A); 3168 ev_now_update (EV_A);
2410 timers_reschedule (EV_A_ mn_now - mn_prev); 3169 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2449 w->pending = 0; 3208 w->pending = 0;
2450 } 3209 }
2451} 3210}
2452 3211
2453int 3212int
2454ev_clear_pending (EV_P_ void *w) 3213ev_clear_pending (EV_P_ void *w) EV_THROW
2455{ 3214{
2456 W w_ = (W)w; 3215 W w_ = (W)w;
2457 int pending = w_->pending; 3216 int pending = w_->pending;
2458 3217
2459 if (expect_true (pending)) 3218 if (expect_true (pending))
… …
2492} 3251}
2493 3252
2494/*****************************************************************************/ 3253/*****************************************************************************/
2495 3254
2496void noinline 3255void noinline
2497ev_io_start (EV_P_ ev_io *w) 3256ev_io_start (EV_P_ ev_io *w) EV_THROW
2498{ 3257{
2499 int fd = w->fd; 3258 int fd = w->fd;
2500 3259
2501 if (expect_false (ev_is_active (w))) 3260 if (expect_false (ev_is_active (w)))
2502 return; 3261 return;
2503 3262
2504 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3263 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2505 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3264 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2506 3265
2507 EV_FREQUENT_CHECK; 3266 EV_FREQUENT_CHECK;
2508 3267
2509 ev_start (EV_A_ (W)w, 1); 3268 ev_start (EV_A_ (W)w, 1);
2510 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3269 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2511 wlist_add (&anfds[fd].head, (WL)w); 3270 wlist_add (&anfds[fd].head, (WL)w);
2512 3271
3272 /* common bug, apparently */
3273 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3274
2513 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3275 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2514 w->events &= ~EV__IOFDSET; 3276 w->events &= ~EV__IOFDSET;
2515 3277
2516 EV_FREQUENT_CHECK; 3278 EV_FREQUENT_CHECK;
2517} 3279}
2518 3280
2519void noinline 3281void noinline
2520ev_io_stop (EV_P_ ev_io *w) 3282ev_io_stop (EV_P_ ev_io *w) EV_THROW
2521{ 3283{
2522 clear_pending (EV_A_ (W)w); 3284 clear_pending (EV_A_ (W)w);
2523 if (expect_false (!ev_is_active (w))) 3285 if (expect_false (!ev_is_active (w)))
2524 return; 3286 return;
2525 3287
… …
2528 EV_FREQUENT_CHECK; 3290 EV_FREQUENT_CHECK;
2529 3291
2530 wlist_del (&anfds[w->fd].head, (WL)w); 3292 wlist_del (&anfds[w->fd].head, (WL)w);
2531 ev_stop (EV_A_ (W)w); 3293 ev_stop (EV_A_ (W)w);
2532 3294
2533 fd_change (EV_A_ w->fd, 1); 3295 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2534 3296
2535 EV_FREQUENT_CHECK; 3297 EV_FREQUENT_CHECK;
2536} 3298}
2537 3299
2538void noinline 3300void noinline
2539ev_timer_start (EV_P_ ev_timer *w) 3301ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2540{ 3302{
2541 if (expect_false (ev_is_active (w))) 3303 if (expect_false (ev_is_active (w)))
2542 return; 3304 return;
2543 3305
2544 ev_at (w) += mn_now; 3306 ev_at (w) += mn_now;
… …
2558 3320
2559 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3321 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2560} 3322}
2561 3323
2562void noinline 3324void noinline
2563ev_timer_stop (EV_P_ ev_timer *w) 3325ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2564{ 3326{
2565 clear_pending (EV_A_ (W)w); 3327 clear_pending (EV_A_ (W)w);
2566 if (expect_false (!ev_is_active (w))) 3328 if (expect_false (!ev_is_active (w)))
2567 return; 3329 return;
2568 3330
… …
2580 timers [active] = timers [timercnt + HEAP0]; 3342 timers [active] = timers [timercnt + HEAP0];
2581 adjustheap (timers, timercnt, active); 3343 adjustheap (timers, timercnt, active);
2582 } 3344 }
2583 } 3345 }
2584 3346
2585 EV_FREQUENT_CHECK;
2586
2587 ev_at (w) -= mn_now; 3347 ev_at (w) -= mn_now;
2588 3348
2589 ev_stop (EV_A_ (W)w); 3349 ev_stop (EV_A_ (W)w);
3350
3351 EV_FREQUENT_CHECK;
2590} 3352}
2591 3353
2592void noinline 3354void noinline
2593ev_timer_again (EV_P_ ev_timer *w) 3355ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2594{ 3356{
2595 EV_FREQUENT_CHECK; 3357 EV_FREQUENT_CHECK;
3358
3359 clear_pending (EV_A_ (W)w);
2596 3360
2597 if (ev_is_active (w)) 3361 if (ev_is_active (w))
2598 { 3362 {
2599 if (w->repeat) 3363 if (w->repeat)
2600 { 3364 {
… …
2613 3377
2614 EV_FREQUENT_CHECK; 3378 EV_FREQUENT_CHECK;
2615} 3379}
2616 3380
2617ev_tstamp 3381ev_tstamp
2618ev_timer_remaining (EV_P_ ev_timer *w) 3382ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2619{ 3383{
2620 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3384 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2621} 3385}
2622 3386
2623#if EV_PERIODIC_ENABLE 3387#if EV_PERIODIC_ENABLE
2624void noinline 3388void noinline
2625ev_periodic_start (EV_P_ ev_periodic *w) 3389ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2626{ 3390{
2627 if (expect_false (ev_is_active (w))) 3391 if (expect_false (ev_is_active (w)))
2628 return; 3392 return;
2629 3393
2630 if (w->reschedule_cb) 3394 if (w->reschedule_cb)
2631 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3395 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2632 else if (w->interval) 3396 else if (w->interval)
2633 { 3397 {
2634 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3398 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2635 /* this formula differs from the one in periodic_reify because we do not always round up */ 3399 periodic_recalc (EV_A_ w);
2636 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2637 } 3400 }
2638 else 3401 else
2639 ev_at (w) = w->offset; 3402 ev_at (w) = w->offset;
2640 3403
2641 EV_FREQUENT_CHECK; 3404 EV_FREQUENT_CHECK;
… …
2651 3414
2652 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3415 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2653} 3416}
2654 3417
2655void noinline 3418void noinline
2656ev_periodic_stop (EV_P_ ev_periodic *w) 3419ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2657{ 3420{
2658 clear_pending (EV_A_ (W)w); 3421 clear_pending (EV_A_ (W)w);
2659 if (expect_false (!ev_is_active (w))) 3422 if (expect_false (!ev_is_active (w)))
2660 return; 3423 return;
2661 3424
… …
2673 periodics [active] = periodics [periodiccnt + HEAP0]; 3436 periodics [active] = periodics [periodiccnt + HEAP0];
2674 adjustheap (periodics, periodiccnt, active); 3437 adjustheap (periodics, periodiccnt, active);
2675 } 3438 }
2676 } 3439 }
2677 3440
2678 EV_FREQUENT_CHECK;
2679
2680 ev_stop (EV_A_ (W)w); 3441 ev_stop (EV_A_ (W)w);
3442
3443 EV_FREQUENT_CHECK;
2681} 3444}
2682 3445
2683void noinline 3446void noinline
2684ev_periodic_again (EV_P_ ev_periodic *w) 3447ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2685{ 3448{
2686 /* TODO: use adjustheap and recalculation */ 3449 /* TODO: use adjustheap and recalculation */
2687 ev_periodic_stop (EV_A_ w); 3450 ev_periodic_stop (EV_A_ w);
2688 ev_periodic_start (EV_A_ w); 3451 ev_periodic_start (EV_A_ w);
2689} 3452}
… …
2691 3454
2692#ifndef SA_RESTART 3455#ifndef SA_RESTART
2693# define SA_RESTART 0 3456# define SA_RESTART 0
2694#endif 3457#endif
2695 3458
3459#if EV_SIGNAL_ENABLE
3460
2696void noinline 3461void noinline
2697ev_signal_start (EV_P_ ev_signal *w) 3462ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2698{ 3463{
2699 if (expect_false (ev_is_active (w))) 3464 if (expect_false (ev_is_active (w)))
2700 return; 3465 return;
2701 3466
2702 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3467 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2746 if (!((WL)w)->next) 3511 if (!((WL)w)->next)
2747# if EV_USE_SIGNALFD 3512# if EV_USE_SIGNALFD
2748 if (sigfd < 0) /*TODO*/ 3513 if (sigfd < 0) /*TODO*/
2749# endif 3514# endif
2750 { 3515 {
2751# if _WIN32 3516# ifdef _WIN32
2752 evpipe_init (EV_A); 3517 evpipe_init (EV_A);
2753 3518
2754 signal (w->signum, ev_sighandler); 3519 signal (w->signum, ev_sighandler);
2755# else 3520# else
2756 struct sigaction sa; 3521 struct sigaction sa;
… …
2760 sa.sa_handler = ev_sighandler; 3525 sa.sa_handler = ev_sighandler;
2761 sigfillset (&sa.sa_mask); 3526 sigfillset (&sa.sa_mask);
2762 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3527 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2763 sigaction (w->signum, &sa, 0); 3528 sigaction (w->signum, &sa, 0);
2764 3529
3530 if (origflags & EVFLAG_NOSIGMASK)
3531 {
2765 sigemptyset (&sa.sa_mask); 3532 sigemptyset (&sa.sa_mask);
2766 sigaddset (&sa.sa_mask, w->signum); 3533 sigaddset (&sa.sa_mask, w->signum);
2767 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3534 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3535 }
2768#endif 3536#endif
2769 } 3537 }
2770 3538
2771 EV_FREQUENT_CHECK; 3539 EV_FREQUENT_CHECK;
2772} 3540}
2773 3541
2774void noinline 3542void noinline
2775ev_signal_stop (EV_P_ ev_signal *w) 3543ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2776{ 3544{
2777 clear_pending (EV_A_ (W)w); 3545 clear_pending (EV_A_ (W)w);
2778 if (expect_false (!ev_is_active (w))) 3546 if (expect_false (!ev_is_active (w)))
2779 return; 3547 return;
2780 3548
… …
2789 signals [w->signum - 1].loop = 0; /* unattach from signal */ 3557 signals [w->signum - 1].loop = 0; /* unattach from signal */
2790#endif 3558#endif
2791#if EV_USE_SIGNALFD 3559#if EV_USE_SIGNALFD
2792 if (sigfd >= 0) 3560 if (sigfd >= 0)
2793 { 3561 {
2794 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3562 sigset_t ss;
3563
3564 sigemptyset (&ss);
3565 sigaddset (&ss, w->signum);
2795 sigdelset (&sigfd_set, w->signum); 3566 sigdelset (&sigfd_set, w->signum);
3567
2796 signalfd (sigfd, &sigfd_set, 0); 3568 signalfd (sigfd, &sigfd_set, 0);
2797 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3569 sigprocmask (SIG_UNBLOCK, &ss, 0);
2798 /*TODO: maybe unblock signal? */
2799 } 3570 }
2800 else 3571 else
2801#endif 3572#endif
2802 signal (w->signum, SIG_DFL); 3573 signal (w->signum, SIG_DFL);
2803 } 3574 }
2804 3575
2805 EV_FREQUENT_CHECK; 3576 EV_FREQUENT_CHECK;
2806} 3577}
2807 3578
3579#endif
3580
3581#if EV_CHILD_ENABLE
3582
2808void 3583void
2809ev_child_start (EV_P_ ev_child *w) 3584ev_child_start (EV_P_ ev_child *w) EV_THROW
2810{ 3585{
2811#if EV_MULTIPLICITY 3586#if EV_MULTIPLICITY
2812 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3587 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2813#endif 3588#endif
2814 if (expect_false (ev_is_active (w))) 3589 if (expect_false (ev_is_active (w)))
2815 return; 3590 return;
2816 3591
2817 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
2818 3593
2819 ev_start (EV_A_ (W)w, 1); 3594 ev_start (EV_A_ (W)w, 1);
2820 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3595 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2821 3596
2822 EV_FREQUENT_CHECK; 3597 EV_FREQUENT_CHECK;
2823} 3598}
2824 3599
2825void 3600void
2826ev_child_stop (EV_P_ ev_child *w) 3601ev_child_stop (EV_P_ ev_child *w) EV_THROW
2827{ 3602{
2828 clear_pending (EV_A_ (W)w); 3603 clear_pending (EV_A_ (W)w);
2829 if (expect_false (!ev_is_active (w))) 3604 if (expect_false (!ev_is_active (w)))
2830 return; 3605 return;
2831 3606
2832 EV_FREQUENT_CHECK; 3607 EV_FREQUENT_CHECK;
2833 3608
2834 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3609 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2835 ev_stop (EV_A_ (W)w); 3610 ev_stop (EV_A_ (W)w);
2836 3611
2837 EV_FREQUENT_CHECK; 3612 EV_FREQUENT_CHECK;
2838} 3613}
3614
3615#endif
2839 3616
2840#if EV_STAT_ENABLE 3617#if EV_STAT_ENABLE
2841 3618
2842# ifdef _WIN32 3619# ifdef _WIN32
2843# undef lstat 3620# undef lstat
… …
2849#define MIN_STAT_INTERVAL 0.1074891 3626#define MIN_STAT_INTERVAL 0.1074891
2850 3627
2851static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3628static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2852 3629
2853#if EV_USE_INOTIFY 3630#if EV_USE_INOTIFY
2854# define EV_INOTIFY_BUFSIZE 8192 3631
3632/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3633# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2855 3634
2856static void noinline 3635static void noinline
2857infy_add (EV_P_ ev_stat *w) 3636infy_add (EV_P_ ev_stat *w)
2858{ 3637{
2859 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); 3638 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);
… …
2902 if (!pend || pend == path) 3681 if (!pend || pend == path)
2903 break; 3682 break;
2904 3683
2905 *pend = 0; 3684 *pend = 0;
2906 w->wd = inotify_add_watch (fs_fd, path, mask); 3685 w->wd = inotify_add_watch (fs_fd, path, mask);
2907 } 3686 }
2908 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3687 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2909 } 3688 }
2910 } 3689 }
2911 3690
2912 if (w->wd >= 0) 3691 if (w->wd >= 0)
2913 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3692 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2914 3693
2915 /* now re-arm timer, if required */ 3694 /* now re-arm timer, if required */
2916 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3695 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2917 ev_timer_again (EV_A_ &w->timer); 3696 ev_timer_again (EV_A_ &w->timer);
2918 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3697 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2926 3705
2927 if (wd < 0) 3706 if (wd < 0)
2928 return; 3707 return;
2929 3708
2930 w->wd = -2; 3709 w->wd = -2;
2931 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3710 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2932 wlist_del (&fs_hash [slot].head, (WL)w); 3711 wlist_del (&fs_hash [slot].head, (WL)w);
2933 3712
2934 /* remove this watcher, if others are watching it, they will rearm */ 3713 /* remove this watcher, if others are watching it, they will rearm */
2935 inotify_rm_watch (fs_fd, wd); 3714 inotify_rm_watch (fs_fd, wd);
2936} 3715}
… …
2938static void noinline 3717static void noinline
2939infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3718infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2940{ 3719{
2941 if (slot < 0) 3720 if (slot < 0)
2942 /* overflow, need to check for all hash slots */ 3721 /* overflow, need to check for all hash slots */
2943 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3722 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2944 infy_wd (EV_A_ slot, wd, ev); 3723 infy_wd (EV_A_ slot, wd, ev);
2945 else 3724 else
2946 { 3725 {
2947 WL w_; 3726 WL w_;
2948 3727
2949 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3728 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2950 { 3729 {
2951 ev_stat *w = (ev_stat *)w_; 3730 ev_stat *w = (ev_stat *)w_;
2952 w_ = w_->next; /* lets us remove this watcher and all before it */ 3731 w_ = w_->next; /* lets us remove this watcher and all before it */
2953 3732
2954 if (w->wd == wd || wd == -1) 3733 if (w->wd == wd || wd == -1)
2955 { 3734 {
2956 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3735 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2957 { 3736 {
2958 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3737 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2959 w->wd = -1; 3738 w->wd = -1;
2960 infy_add (EV_A_ w); /* re-add, no matter what */ 3739 infy_add (EV_A_ w); /* re-add, no matter what */
2961 } 3740 }
2962 3741
2963 stat_timer_cb (EV_A_ &w->timer, 0); 3742 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2968 3747
2969static void 3748static void
2970infy_cb (EV_P_ ev_io *w, int revents) 3749infy_cb (EV_P_ ev_io *w, int revents)
2971{ 3750{
2972 char buf [EV_INOTIFY_BUFSIZE]; 3751 char buf [EV_INOTIFY_BUFSIZE];
2973 struct inotify_event *ev = (struct inotify_event *)buf;
2974 int ofs; 3752 int ofs;
2975 int len = read (fs_fd, buf, sizeof (buf)); 3753 int len = read (fs_fd, buf, sizeof (buf));
2976 3754
2977 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3755 for (ofs = 0; ofs < len; )
3756 {
3757 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2978 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3758 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3759 ofs += sizeof (struct inotify_event) + ev->len;
3760 }
2979} 3761}
2980 3762
2981inline_size void 3763inline_size void ecb_cold
2982check_2625 (EV_P) 3764ev_check_2625 (EV_P)
2983{ 3765{
2984 /* kernels < 2.6.25 are borked 3766 /* kernels < 2.6.25 are borked
2985 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3767 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2986 */ 3768 */
2987 struct utsname buf; 3769 if (ev_linux_version () < 0x020619)
2988 int major, minor, micro;
2989
2990 if (uname (&buf))
2991 return;
2992
2993 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2994 return;
2995
2996 if (major < 2
2997 || (major == 2 && minor < 6)
2998 || (major == 2 && minor == 6 && micro < 25))
2999 return; 3770 return;
3000 3771
3001 fs_2625 = 1; 3772 fs_2625 = 1;
3002} 3773}
3003 3774
3004inline_size int 3775inline_size int
3005infy_newfd (void) 3776infy_newfd (void)
3006{ 3777{
3007#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3778#if defined IN_CLOEXEC && defined IN_NONBLOCK
3008 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3779 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3009 if (fd >= 0) 3780 if (fd >= 0)
3010 return fd; 3781 return fd;
3011#endif 3782#endif
3012 return inotify_init (); 3783 return inotify_init ();
… …
3018 if (fs_fd != -2) 3789 if (fs_fd != -2)
3019 return; 3790 return;
3020 3791
3021 fs_fd = -1; 3792 fs_fd = -1;
3022 3793
3023 check_2625 (EV_A); 3794 ev_check_2625 (EV_A);
3024 3795
3025 fs_fd = infy_newfd (); 3796 fs_fd = infy_newfd ();
3026 3797
3027 if (fs_fd >= 0) 3798 if (fs_fd >= 0)
3028 { 3799 {
… …
3053 ev_io_set (&fs_w, fs_fd, EV_READ); 3824 ev_io_set (&fs_w, fs_fd, EV_READ);
3054 ev_io_start (EV_A_ &fs_w); 3825 ev_io_start (EV_A_ &fs_w);
3055 ev_unref (EV_A); 3826 ev_unref (EV_A);
3056 } 3827 }
3057 3828
3058 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3829 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3059 { 3830 {
3060 WL w_ = fs_hash [slot].head; 3831 WL w_ = fs_hash [slot].head;
3061 fs_hash [slot].head = 0; 3832 fs_hash [slot].head = 0;
3062 3833
3063 while (w_) 3834 while (w_)
… …
3087#else 3858#else
3088# define EV_LSTAT(p,b) lstat (p, b) 3859# define EV_LSTAT(p,b) lstat (p, b)
3089#endif 3860#endif
3090 3861
3091void 3862void
3092ev_stat_stat (EV_P_ ev_stat *w) 3863ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3093{ 3864{
3094 if (lstat (w->path, &w->attr) < 0) 3865 if (lstat (w->path, &w->attr) < 0)
3095 w->attr.st_nlink = 0; 3866 w->attr.st_nlink = 0;
3096 else if (!w->attr.st_nlink) 3867 else if (!w->attr.st_nlink)
3097 w->attr.st_nlink = 1; 3868 w->attr.st_nlink = 1;
… …
3100static void noinline 3871static void noinline
3101stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3872stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3102{ 3873{
3103 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3874 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3104 3875
3105 /* we copy this here each the time so that */ 3876 ev_statdata prev = w->attr;
3106 /* prev has the old value when the callback gets invoked */
3107 w->prev = w->attr;
3108 ev_stat_stat (EV_A_ w); 3877 ev_stat_stat (EV_A_ w);
3109 3878
3110 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3879 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3111 if ( 3880 if (
3112 w->prev.st_dev != w->attr.st_dev 3881 prev.st_dev != w->attr.st_dev
3113 || w->prev.st_ino != w->attr.st_ino 3882 || prev.st_ino != w->attr.st_ino
3114 || w->prev.st_mode != w->attr.st_mode 3883 || prev.st_mode != w->attr.st_mode
3115 || w->prev.st_nlink != w->attr.st_nlink 3884 || prev.st_nlink != w->attr.st_nlink
3116 || w->prev.st_uid != w->attr.st_uid 3885 || prev.st_uid != w->attr.st_uid
3117 || w->prev.st_gid != w->attr.st_gid 3886 || prev.st_gid != w->attr.st_gid
3118 || w->prev.st_rdev != w->attr.st_rdev 3887 || prev.st_rdev != w->attr.st_rdev
3119 || w->prev.st_size != w->attr.st_size 3888 || prev.st_size != w->attr.st_size
3120 || w->prev.st_atime != w->attr.st_atime 3889 || prev.st_atime != w->attr.st_atime
3121 || w->prev.st_mtime != w->attr.st_mtime 3890 || prev.st_mtime != w->attr.st_mtime
3122 || w->prev.st_ctime != w->attr.st_ctime 3891 || prev.st_ctime != w->attr.st_ctime
3123 ) { 3892 ) {
3893 /* we only update w->prev on actual differences */
3894 /* in case we test more often than invoke the callback, */
3895 /* to ensure that prev is always different to attr */
3896 w->prev = prev;
3897
3124 #if EV_USE_INOTIFY 3898 #if EV_USE_INOTIFY
3125 if (fs_fd >= 0) 3899 if (fs_fd >= 0)
3126 { 3900 {
3127 infy_del (EV_A_ w); 3901 infy_del (EV_A_ w);
3128 infy_add (EV_A_ w); 3902 infy_add (EV_A_ w);
… …
3133 ev_feed_event (EV_A_ w, EV_STAT); 3907 ev_feed_event (EV_A_ w, EV_STAT);
3134 } 3908 }
3135} 3909}
3136 3910
3137void 3911void
3138ev_stat_start (EV_P_ ev_stat *w) 3912ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3139{ 3913{
3140 if (expect_false (ev_is_active (w))) 3914 if (expect_false (ev_is_active (w)))
3141 return; 3915 return;
3142 3916
3143 ev_stat_stat (EV_A_ w); 3917 ev_stat_stat (EV_A_ w);
… …
3164 3938
3165 EV_FREQUENT_CHECK; 3939 EV_FREQUENT_CHECK;
3166} 3940}
3167 3941
3168void 3942void
3169ev_stat_stop (EV_P_ ev_stat *w) 3943ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3170{ 3944{
3171 clear_pending (EV_A_ (W)w); 3945 clear_pending (EV_A_ (W)w);
3172 if (expect_false (!ev_is_active (w))) 3946 if (expect_false (!ev_is_active (w)))
3173 return; 3947 return;
3174 3948
… …
3190} 3964}
3191#endif 3965#endif
3192 3966
3193#if EV_IDLE_ENABLE 3967#if EV_IDLE_ENABLE
3194void 3968void
3195ev_idle_start (EV_P_ ev_idle *w) 3969ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3196{ 3970{
3197 if (expect_false (ev_is_active (w))) 3971 if (expect_false (ev_is_active (w)))
3198 return; 3972 return;
3199 3973
3200 pri_adjust (EV_A_ (W)w); 3974 pri_adjust (EV_A_ (W)w);
… …
3213 3987
3214 EV_FREQUENT_CHECK; 3988 EV_FREQUENT_CHECK;
3215} 3989}
3216 3990
3217void 3991void
3218ev_idle_stop (EV_P_ ev_idle *w) 3992ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3219{ 3993{
3220 clear_pending (EV_A_ (W)w); 3994 clear_pending (EV_A_ (W)w);
3221 if (expect_false (!ev_is_active (w))) 3995 if (expect_false (!ev_is_active (w)))
3222 return; 3996 return;
3223 3997
… …
3235 4009
3236 EV_FREQUENT_CHECK; 4010 EV_FREQUENT_CHECK;
3237} 4011}
3238#endif 4012#endif
3239 4013
4014#if EV_PREPARE_ENABLE
3240void 4015void
3241ev_prepare_start (EV_P_ ev_prepare *w) 4016ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3242{ 4017{
3243 if (expect_false (ev_is_active (w))) 4018 if (expect_false (ev_is_active (w)))
3244 return; 4019 return;
3245 4020
3246 EV_FREQUENT_CHECK; 4021 EV_FREQUENT_CHECK;
… …
3251 4026
3252 EV_FREQUENT_CHECK; 4027 EV_FREQUENT_CHECK;
3253} 4028}
3254 4029
3255void 4030void
3256ev_prepare_stop (EV_P_ ev_prepare *w) 4031ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3257{ 4032{
3258 clear_pending (EV_A_ (W)w); 4033 clear_pending (EV_A_ (W)w);
3259 if (expect_false (!ev_is_active (w))) 4034 if (expect_false (!ev_is_active (w)))
3260 return; 4035 return;
3261 4036
… …
3270 4045
3271 ev_stop (EV_A_ (W)w); 4046 ev_stop (EV_A_ (W)w);
3272 4047
3273 EV_FREQUENT_CHECK; 4048 EV_FREQUENT_CHECK;
3274} 4049}
4050#endif
3275 4051
4052#if EV_CHECK_ENABLE
3276void 4053void
3277ev_check_start (EV_P_ ev_check *w) 4054ev_check_start (EV_P_ ev_check *w) EV_THROW
3278{ 4055{
3279 if (expect_false (ev_is_active (w))) 4056 if (expect_false (ev_is_active (w)))
3280 return; 4057 return;
3281 4058
3282 EV_FREQUENT_CHECK; 4059 EV_FREQUENT_CHECK;
… …
3287 4064
3288 EV_FREQUENT_CHECK; 4065 EV_FREQUENT_CHECK;
3289} 4066}
3290 4067
3291void 4068void
3292ev_check_stop (EV_P_ ev_check *w) 4069ev_check_stop (EV_P_ ev_check *w) EV_THROW
3293{ 4070{
3294 clear_pending (EV_A_ (W)w); 4071 clear_pending (EV_A_ (W)w);
3295 if (expect_false (!ev_is_active (w))) 4072 if (expect_false (!ev_is_active (w)))
3296 return; 4073 return;
3297 4074
… …
3306 4083
3307 ev_stop (EV_A_ (W)w); 4084 ev_stop (EV_A_ (W)w);
3308 4085
3309 EV_FREQUENT_CHECK; 4086 EV_FREQUENT_CHECK;
3310} 4087}
4088#endif
3311 4089
3312#if EV_EMBED_ENABLE 4090#if EV_EMBED_ENABLE
3313void noinline 4091void noinline
3314ev_embed_sweep (EV_P_ ev_embed *w) 4092ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3315{ 4093{
3316 ev_loop (w->other, EVLOOP_NONBLOCK); 4094 ev_run (w->other, EVRUN_NOWAIT);
3317} 4095}
3318 4096
3319static void 4097static void
3320embed_io_cb (EV_P_ ev_io *io, int revents) 4098embed_io_cb (EV_P_ ev_io *io, int revents)
3321{ 4099{
3322 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4100 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3323 4101
3324 if (ev_cb (w)) 4102 if (ev_cb (w))
3325 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4103 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3326 else 4104 else
3327 ev_loop (w->other, EVLOOP_NONBLOCK); 4105 ev_run (w->other, EVRUN_NOWAIT);
3328} 4106}
3329 4107
3330static void 4108static void
3331embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4109embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3332{ 4110{
… …
3336 EV_P = w->other; 4114 EV_P = w->other;
3337 4115
3338 while (fdchangecnt) 4116 while (fdchangecnt)
3339 { 4117 {
3340 fd_reify (EV_A); 4118 fd_reify (EV_A);
3341 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4119 ev_run (EV_A_ EVRUN_NOWAIT);
3342 } 4120 }
3343 } 4121 }
3344} 4122}
3345 4123
3346static void 4124static void
… …
3352 4130
3353 { 4131 {
3354 EV_P = w->other; 4132 EV_P = w->other;
3355 4133
3356 ev_loop_fork (EV_A); 4134 ev_loop_fork (EV_A);
3357 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4135 ev_run (EV_A_ EVRUN_NOWAIT);
3358 } 4136 }
3359 4137
3360 ev_embed_start (EV_A_ w); 4138 ev_embed_start (EV_A_ w);
3361} 4139}
3362 4140
… …
3367 ev_idle_stop (EV_A_ idle); 4145 ev_idle_stop (EV_A_ idle);
3368} 4146}
3369#endif 4147#endif
3370 4148
3371void 4149void
3372ev_embed_start (EV_P_ ev_embed *w) 4150ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3373{ 4151{
3374 if (expect_false (ev_is_active (w))) 4152 if (expect_false (ev_is_active (w)))
3375 return; 4153 return;
3376 4154
3377 { 4155 {
… …
3398 4176
3399 EV_FREQUENT_CHECK; 4177 EV_FREQUENT_CHECK;
3400} 4178}
3401 4179
3402void 4180void
3403ev_embed_stop (EV_P_ ev_embed *w) 4181ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3404{ 4182{
3405 clear_pending (EV_A_ (W)w); 4183 clear_pending (EV_A_ (W)w);
3406 if (expect_false (!ev_is_active (w))) 4184 if (expect_false (!ev_is_active (w)))
3407 return; 4185 return;
3408 4186
… …
3410 4188
3411 ev_io_stop (EV_A_ &w->io); 4189 ev_io_stop (EV_A_ &w->io);
3412 ev_prepare_stop (EV_A_ &w->prepare); 4190 ev_prepare_stop (EV_A_ &w->prepare);
3413 ev_fork_stop (EV_A_ &w->fork); 4191 ev_fork_stop (EV_A_ &w->fork);
3414 4192
4193 ev_stop (EV_A_ (W)w);
4194
3415 EV_FREQUENT_CHECK; 4195 EV_FREQUENT_CHECK;
3416} 4196}
3417#endif 4197#endif
3418 4198
3419#if EV_FORK_ENABLE 4199#if EV_FORK_ENABLE
3420void 4200void
3421ev_fork_start (EV_P_ ev_fork *w) 4201ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3422{ 4202{
3423 if (expect_false (ev_is_active (w))) 4203 if (expect_false (ev_is_active (w)))
3424 return; 4204 return;
3425 4205
3426 EV_FREQUENT_CHECK; 4206 EV_FREQUENT_CHECK;
… …
3431 4211
3432 EV_FREQUENT_CHECK; 4212 EV_FREQUENT_CHECK;
3433} 4213}
3434 4214
3435void 4215void
3436ev_fork_stop (EV_P_ ev_fork *w) 4216ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3437{ 4217{
3438 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
3439 if (expect_false (!ev_is_active (w))) 4219 if (expect_false (!ev_is_active (w)))
3440 return; 4220 return;
3441 4221
… …
3452 4232
3453 EV_FREQUENT_CHECK; 4233 EV_FREQUENT_CHECK;
3454} 4234}
3455#endif 4235#endif
3456 4236
4237#if EV_CLEANUP_ENABLE
4238void
4239ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4240{
4241 if (expect_false (ev_is_active (w)))
4242 return;
4243
4244 EV_FREQUENT_CHECK;
4245
4246 ev_start (EV_A_ (W)w, ++cleanupcnt);
4247 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4248 cleanups [cleanupcnt - 1] = w;
4249
4250 /* cleanup watchers should never keep a refcount on the loop */
4251 ev_unref (EV_A);
4252 EV_FREQUENT_CHECK;
4253}
4254
4255void
4256ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4257{
4258 clear_pending (EV_A_ (W)w);
4259 if (expect_false (!ev_is_active (w)))
4260 return;
4261
4262 EV_FREQUENT_CHECK;
4263 ev_ref (EV_A);
4264
4265 {
4266 int active = ev_active (w);
4267
4268 cleanups [active - 1] = cleanups [--cleanupcnt];
4269 ev_active (cleanups [active - 1]) = active;
4270 }
4271
4272 ev_stop (EV_A_ (W)w);
4273
4274 EV_FREQUENT_CHECK;
4275}
4276#endif
4277
3457#if EV_ASYNC_ENABLE 4278#if EV_ASYNC_ENABLE
3458void 4279void
3459ev_async_start (EV_P_ ev_async *w) 4280ev_async_start (EV_P_ ev_async *w) EV_THROW
3460{ 4281{
3461 if (expect_false (ev_is_active (w))) 4282 if (expect_false (ev_is_active (w)))
3462 return; 4283 return;
4284
4285 w->sent = 0;
3463 4286
3464 evpipe_init (EV_A); 4287 evpipe_init (EV_A);
3465 4288
3466 EV_FREQUENT_CHECK; 4289 EV_FREQUENT_CHECK;
3467 4290
… …
3471 4294
3472 EV_FREQUENT_CHECK; 4295 EV_FREQUENT_CHECK;
3473} 4296}
3474 4297
3475void 4298void
3476ev_async_stop (EV_P_ ev_async *w) 4299ev_async_stop (EV_P_ ev_async *w) EV_THROW
3477{ 4300{
3478 clear_pending (EV_A_ (W)w); 4301 clear_pending (EV_A_ (W)w);
3479 if (expect_false (!ev_is_active (w))) 4302 if (expect_false (!ev_is_active (w)))
3480 return; 4303 return;
3481 4304
… …
3492 4315
3493 EV_FREQUENT_CHECK; 4316 EV_FREQUENT_CHECK;
3494} 4317}
3495 4318
3496void 4319void
3497ev_async_send (EV_P_ ev_async *w) 4320ev_async_send (EV_P_ ev_async *w) EV_THROW
3498{ 4321{
3499 w->sent = 1; 4322 w->sent = 1;
3500 evpipe_write (EV_A_ &async_pending); 4323 evpipe_write (EV_A_ &async_pending);
3501} 4324}
3502#endif 4325#endif
… …
3539 4362
3540 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4363 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3541} 4364}
3542 4365
3543void 4366void
3544ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4367ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3545{ 4368{
3546 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4369 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3547 4370
3548 if (expect_false (!once)) 4371 if (expect_false (!once))
3549 { 4372 {
3550 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4373 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3551 return; 4374 return;
3552 } 4375 }
3553 4376
3554 once->cb = cb; 4377 once->cb = cb;
3555 once->arg = arg; 4378 once->arg = arg;
… …
3570} 4393}
3571 4394
3572/*****************************************************************************/ 4395/*****************************************************************************/
3573 4396
3574#if EV_WALK_ENABLE 4397#if EV_WALK_ENABLE
3575void 4398void ecb_cold
3576ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4399ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3577{ 4400{
3578 int i, j; 4401 int i, j;
3579 ev_watcher_list *wl, *wn; 4402 ev_watcher_list *wl, *wn;
3580 4403
3581 if (types & (EV_IO | EV_EMBED)) 4404 if (types & (EV_IO | EV_EMBED))
… …
3624 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4447 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3625#endif 4448#endif
3626 4449
3627#if EV_IDLE_ENABLE 4450#if EV_IDLE_ENABLE
3628 if (types & EV_IDLE) 4451 if (types & EV_IDLE)
3629 for (j = NUMPRI; i--; ) 4452 for (j = NUMPRI; j--; )
3630 for (i = idlecnt [j]; i--; ) 4453 for (i = idlecnt [j]; i--; )
3631 cb (EV_A_ EV_IDLE, idles [j][i]); 4454 cb (EV_A_ EV_IDLE, idles [j][i]);
3632#endif 4455#endif
3633 4456
3634#if EV_FORK_ENABLE 4457#if EV_FORK_ENABLE
… …
3642 if (types & EV_ASYNC) 4465 if (types & EV_ASYNC)
3643 for (i = asynccnt; i--; ) 4466 for (i = asynccnt; i--; )
3644 cb (EV_A_ EV_ASYNC, asyncs [i]); 4467 cb (EV_A_ EV_ASYNC, asyncs [i]);
3645#endif 4468#endif
3646 4469
4470#if EV_PREPARE_ENABLE
3647 if (types & EV_PREPARE) 4471 if (types & EV_PREPARE)
3648 for (i = preparecnt; i--; ) 4472 for (i = preparecnt; i--; )
3649#if EV_EMBED_ENABLE 4473# if EV_EMBED_ENABLE
3650 if (ev_cb (prepares [i]) != embed_prepare_cb) 4474 if (ev_cb (prepares [i]) != embed_prepare_cb)
3651#endif 4475# endif
3652 cb (EV_A_ EV_PREPARE, prepares [i]); 4476 cb (EV_A_ EV_PREPARE, prepares [i]);
4477#endif
3653 4478
4479#if EV_CHECK_ENABLE
3654 if (types & EV_CHECK) 4480 if (types & EV_CHECK)
3655 for (i = checkcnt; i--; ) 4481 for (i = checkcnt; i--; )
3656 cb (EV_A_ EV_CHECK, checks [i]); 4482 cb (EV_A_ EV_CHECK, checks [i]);
4483#endif
3657 4484
4485#if EV_SIGNAL_ENABLE
3658 if (types & EV_SIGNAL) 4486 if (types & EV_SIGNAL)
3659 for (i = 0; i < EV_NSIG - 1; ++i) 4487 for (i = 0; i < EV_NSIG - 1; ++i)
3660 for (wl = signals [i].head; wl; ) 4488 for (wl = signals [i].head; wl; )
3661 { 4489 {
3662 wn = wl->next; 4490 wn = wl->next;
3663 cb (EV_A_ EV_SIGNAL, wl); 4491 cb (EV_A_ EV_SIGNAL, wl);
3664 wl = wn; 4492 wl = wn;
3665 } 4493 }
4494#endif
3666 4495
4496#if EV_CHILD_ENABLE
3667 if (types & EV_CHILD) 4497 if (types & EV_CHILD)
3668 for (i = EV_PID_HASHSIZE; i--; ) 4498 for (i = (EV_PID_HASHSIZE); i--; )
3669 for (wl = childs [i]; wl; ) 4499 for (wl = childs [i]; wl; )
3670 { 4500 {
3671 wn = wl->next; 4501 wn = wl->next;
3672 cb (EV_A_ EV_CHILD, wl); 4502 cb (EV_A_ EV_CHILD, wl);
3673 wl = wn; 4503 wl = wn;
3674 } 4504 }
4505#endif
3675/* EV_STAT 0x00001000 /* stat data changed */ 4506/* EV_STAT 0x00001000 /* stat data changed */
3676/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4507/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3677} 4508}
3678#endif 4509#endif
3679 4510
3680#if EV_MULTIPLICITY 4511#if EV_MULTIPLICITY
3681 #include "ev_wrap.h" 4512 #include "ev_wrap.h"
3682#endif 4513#endif
3683 4514
3684#ifdef __cplusplus
3685}
3686#endif
3687

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