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Comparing libev/ev.c (file contents):
Revision 1.331 by root, Tue Mar 9 08:55:03 2010 UTC vs.
Revision 1.433 by root, Tue May 15 13:03:20 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
171 181
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# include "ev.h" 185# include "ev.h"
186#endif
187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
176#endif 197#endif
177 198
178#ifndef _WIN32 199#ifndef _WIN32
179# include <sys/time.h> 200# include <sys/time.h>
180# include <sys/wait.h> 201# include <sys/wait.h>
181# include <unistd.h> 202# include <unistd.h>
182#else 203#else
183# include <io.h> 204# include <io.h>
184# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
185# include <windows.h> 207# include <windows.h>
186# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
188# endif 210# endif
189# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
190#endif 212#endif
191 213
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
221
192/* 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 */
193 223
194/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 225#if defined EV_NSIG
196/* use what's provided */ 226/* use what's provided */
197#elif defined (NSIG) 227#elif defined NSIG
198# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
199#elif defined(_NSIG) 229#elif defined _NSIG
200# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX) 231#elif defined SIGMAX
202# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX) 233#elif defined SIG_MAX
204# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
206# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG) 237#elif defined MAXSIG
208# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 239#elif defined MAX_SIG
210# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
212# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 243#elif defined _sys_nsig
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 245#else
216# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
217/* 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! :) */
218# define EV_NSIG 65 249# define EV_NSIG 65
250#endif
251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
219#endif 254#endif
220 255
221#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
222# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
223# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
224# else 259# else
225# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
226# endif 261# endif
227#endif 262#endif
228 263
229#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
230# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
231# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
232# else 267# else
233# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
234# endif 269# endif
235#endif 270#endif
236 271
… …
238# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239#endif 274#endif
240 275
241#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
242# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
243# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
244# else 279# else
245# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
246# endif 281# endif
247#endif 282#endif
248 283
249#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
250# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
251#endif 286#endif
252 287
253#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
254# ifdef _WIN32 289# ifdef _WIN32
255# define EV_USE_POLL 0 290# define EV_USE_POLL 0
256# else 291# else
257# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
258# endif 293# endif
259#endif 294#endif
260 295
261#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264# else 299# else
265# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
266# endif 301# endif
267#endif 302#endif
268 303
… …
274# define EV_USE_PORT 0 309# define EV_USE_PORT 0
275#endif 310#endif
276 311
277#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
280# else 315# else
281# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
282# endif 317# endif
283#endif 318#endif
284 319
285#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
286# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
287# define EV_PID_HASHSIZE 1
288# else
289# define EV_PID_HASHSIZE 16
290# endif
291#endif 322#endif
292 323
293#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
294# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
295# define EV_INOTIFY_HASHSIZE 1
296# else
297# define EV_INOTIFY_HASHSIZE 16
298# endif
299#endif 326#endif
300 327
301#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
302# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
304# else 331# else
305# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
306# endif 333# endif
307#endif 334#endif
308 335
309#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
312# else 339# else
313# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
314# endif 341# endif
315#endif 342#endif
316 343
… …
319# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
320# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
321#endif 348#endif
322 349
323#ifndef EV_VERIFY 350#ifndef EV_VERIFY
324# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325#endif 352#endif
326 353
327#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
328# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
329#endif 356#endif
330 357
331#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
332# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
333#endif 360#endif
334 361
335/* 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, */
336/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
337#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
338# include <syscall.h> 365# include <sys/syscall.h>
339# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
340# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
341# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
342# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
343# else 370# else
… …
368# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
369# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
370#endif 397#endif
371 398
372#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
373# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
374# include <sys/select.h> 402# include <sys/select.h>
375# endif 403# endif
376#endif 404#endif
377 405
378#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
379# include <sys/utsname.h>
380# include <sys/statfs.h> 407# include <sys/statfs.h>
381# include <sys/inotify.h> 408# include <sys/inotify.h>
382/* 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 */
383# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
384# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
385# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
386# endif 413# endif
387#endif
388
389#if EV_SELECT_IS_WINSOCKET
390# include <winsock.h>
391#endif 414#endif
392 415
393#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
394/* 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 */
395# include <stdint.h> 418# include <stdint.h>
… …
401# define EFD_CLOEXEC O_CLOEXEC 424# define EFD_CLOEXEC O_CLOEXEC
402# else 425# else
403# define EFD_CLOEXEC 02000000 426# define EFD_CLOEXEC 02000000
404# endif 427# endif
405# endif 428# endif
406# ifdef __cplusplus
407extern "C" {
408# endif
409int (eventfd) (unsigned int initval, int flags); 429EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410# ifdef __cplusplus
411}
412# endif
413#endif 430#endif
414 431
415#if EV_USE_SIGNALFD 432#if EV_USE_SIGNALFD
416/* 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 */
417# include <stdint.h> 434# include <stdint.h>
… …
423# define SFD_CLOEXEC O_CLOEXEC 440# define SFD_CLOEXEC O_CLOEXEC
424# else 441# else
425# define SFD_CLOEXEC 02000000 442# define SFD_CLOEXEC 02000000
426# endif 443# endif
427# endif 444# endif
428# ifdef __cplusplus
429extern "C" {
430# endif
431int signalfd (int fd, const sigset_t *mask, int flags); 445EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
432 446
433struct signalfd_siginfo 447struct signalfd_siginfo
434{ 448{
435 uint32_t ssi_signo; 449 uint32_t ssi_signo;
436 char pad[128 - sizeof (uint32_t)]; 450 char pad[128 - sizeof (uint32_t)];
437}; 451};
438# ifdef __cplusplus
439}
440# endif 452#endif
441#endif
442
443 453
444/**/ 454/**/
445 455
446#if EV_VERIFY >= 3 456#if EV_VERIFY >= 3
447# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 457# define EV_FREQUENT_CHECK ev_verify (EV_A)
448#else 458#else
449# define EV_FREQUENT_CHECK do { } while (0) 459# define EV_FREQUENT_CHECK do { } while (0)
450#endif 460#endif
451 461
452/* 462/*
453 * This is used to avoid floating point rounding problems. 463 * This is used to work around floating point rounding problems.
454 * It is added to ev_rt_now when scheduling periodics
455 * to ensure progress, time-wise, even when rounding
456 * errors are against us.
457 * This value is good at least till the year 4000. 464 * This value is good at least till the year 4000.
458 * Better solutions welcome.
459 */ 465 */
460#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 */
461 468
462#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) */
463#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) */
464 471
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;
465#if __GNUC__ >= 4 516 #if __GNUC__
466# define expect(expr,value) __builtin_expect ((expr),(value)) 517 typedef signed long long int64_t;
467# 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
468#else 523#else
469# define expect(expr,value) (expr) 524 #include <inttypes.h>
470# define noinline
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
472# define inline
473# 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)))
474#endif 539 #endif
540#endif
475 541
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. */
476#define expect_false(expr) expect ((expr) != 0, 0) 705#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#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
478#define inline_size static inline 957#define inline_size ecb_inline
479 958
480#if EV_MINIMAL 959#if EV_FEATURE_CODE
960# define inline_speed ecb_inline
961#else
481# define inline_speed static noinline 962# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 963#endif
485 964
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 965#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 966
488#if EV_MINPRI == EV_MAXPRI 967#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 980#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 981#define ev_at(w) ((WT)(w))->at
503 982
504#if EV_USE_REALTIME 983#if EV_USE_REALTIME
505/* 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 */
506/* giving it a reasonably high chance of working on typical architetcures */ 985/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 986static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 987#endif
509 988
510#if EV_USE_MONOTONIC 989#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 990static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 1004# include "ev_win32.c"
526#endif 1005#endif
527 1006
528/*****************************************************************************/ 1007/*****************************************************************************/
529 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
530#if EV_AVOID_STDIO 1099#if EV_AVOID_STDIO
531static void noinline 1100static void noinline ecb_cold
532ev_printerr (const char *msg) 1101ev_printerr (const char *msg)
533{ 1102{
534 write (STDERR_FILENO, msg, strlen (msg)); 1103 write (STDERR_FILENO, msg, strlen (msg));
535} 1104}
536#endif 1105#endif
537 1106
538static void (*syserr_cb)(const char *msg); 1107static void (*syserr_cb)(const char *msg) EV_THROW;
539 1108
540void 1109void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 1110ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
542{ 1111{
543 syserr_cb = cb; 1112 syserr_cb = cb;
544} 1113}
545 1114
546static void noinline 1115static void noinline ecb_cold
547ev_syserr (const char *msg) 1116ev_syserr (const char *msg)
548{ 1117{
549 if (!msg) 1118 if (!msg)
550 msg = "(libev) system error"; 1119 msg = "(libev) system error";
551 1120
552 if (syserr_cb) 1121 if (syserr_cb)
553 syserr_cb (msg); 1122 syserr_cb (msg);
554 else 1123 else
555 { 1124 {
556#if EV_AVOID_STDIO 1125#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 1126 ev_printerr (msg);
560 ev_printerr (": "); 1127 ev_printerr (": ");
561 ev_printerr (err); 1128 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 1129 ev_printerr ("\n");
563#else 1130#else
564 perror (msg); 1131 perror (msg);
565#endif 1132#endif
566 abort (); 1133 abort ();
… …
568} 1135}
569 1136
570static void * 1137static void *
571ev_realloc_emul (void *ptr, long size) 1138ev_realloc_emul (void *ptr, long size)
572{ 1139{
1140#if __GLIBC__
1141 return realloc (ptr, size);
1142#else
573 /* some systems, notably openbsd and darwin, fail to properly 1143 /* some systems, notably openbsd and darwin, fail to properly
574 * 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
575 * the single unix specification, so work around them here. 1145 * the single unix specification, so work around them here.
576 */ 1146 */
577 1147
578 if (size) 1148 if (size)
579 return realloc (ptr, size); 1149 return realloc (ptr, size);
580 1150
581 free (ptr); 1151 free (ptr);
582 return 0; 1152 return 0;
1153#endif
583} 1154}
584 1155
585static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1156static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
586 1157
587void 1158void ecb_cold
588ev_set_allocator (void *(*cb)(void *ptr, long size)) 1159ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
589{ 1160{
590 alloc = cb; 1161 alloc = cb;
591} 1162}
592 1163
593inline_speed void * 1164inline_speed void *
… …
596 ptr = alloc (ptr, size); 1167 ptr = alloc (ptr, size);
597 1168
598 if (!ptr && size) 1169 if (!ptr && size)
599 { 1170 {
600#if EV_AVOID_STDIO 1171#if EV_AVOID_STDIO
601 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1172 ev_printerr ("(libev) memory allocation failed, aborting.\n");
602#else 1173#else
603 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1174 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
604#endif 1175#endif
605 abort (); 1176 abort ();
606 } 1177 }
607 1178
608 return ptr; 1179 return ptr;
… …
625 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 */
626 unsigned char unused; 1197 unsigned char unused;
627#if EV_USE_EPOLL 1198#if EV_USE_EPOLL
628 unsigned int egen; /* generation counter to counter epoll bugs */ 1199 unsigned int egen; /* generation counter to counter epoll bugs */
629#endif 1200#endif
630#if EV_SELECT_IS_WINSOCKET 1201#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
631 SOCKET handle; 1202 SOCKET handle;
1203#endif
1204#if EV_USE_IOCP
1205 OVERLAPPED or, ow;
632#endif 1206#endif
633} ANFD; 1207} ANFD;
634 1208
635/* stores the pending event set for a given watcher */ 1209/* stores the pending event set for a given watcher */
636typedef struct 1210typedef struct
… …
678 #undef VAR 1252 #undef VAR
679 }; 1253 };
680 #include "ev_wrap.h" 1254 #include "ev_wrap.h"
681 1255
682 static struct ev_loop default_loop_struct; 1256 static struct ev_loop default_loop_struct;
683 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 */
684 1258
685#else 1259#else
686 1260
687 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 */
688 #define VAR(name,decl) static decl; 1262 #define VAR(name,decl) static decl;
689 #include "ev_vars.h" 1263 #include "ev_vars.h"
690 #undef VAR 1264 #undef VAR
691 1265
692 static int ev_default_loop_ptr; 1266 static int ev_default_loop_ptr;
693 1267
694#endif 1268#endif
695 1269
696#if EV_MINIMAL < 2 1270#if EV_FEATURE_API
697# 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)
698# 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)
699# define EV_INVOKE_PENDING invoke_cb (EV_A) 1273# define EV_INVOKE_PENDING invoke_cb (EV_A)
700#else 1274#else
701# define EV_RELEASE_CB (void)0 1275# define EV_RELEASE_CB (void)0
702# define EV_ACQUIRE_CB (void)0 1276# define EV_ACQUIRE_CB (void)0
703# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1277# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
704#endif 1278#endif
705 1279
706#define EVUNLOOP_RECURSE 0x80 1280#define EVBREAK_RECURSE 0x80
707 1281
708/*****************************************************************************/ 1282/*****************************************************************************/
709 1283
710#ifndef EV_HAVE_EV_TIME 1284#ifndef EV_HAVE_EV_TIME
711ev_tstamp 1285ev_tstamp
712ev_time (void) 1286ev_time (void) EV_THROW
713{ 1287{
714#if EV_USE_REALTIME 1288#if EV_USE_REALTIME
715 if (expect_true (have_realtime)) 1289 if (expect_true (have_realtime))
716 { 1290 {
717 struct timespec ts; 1291 struct timespec ts;
… …
741 return ev_time (); 1315 return ev_time ();
742} 1316}
743 1317
744#if EV_MULTIPLICITY 1318#if EV_MULTIPLICITY
745ev_tstamp 1319ev_tstamp
746ev_now (EV_P) 1320ev_now (EV_P) EV_THROW
747{ 1321{
748 return ev_rt_now; 1322 return ev_rt_now;
749} 1323}
750#endif 1324#endif
751 1325
752void 1326void
753ev_sleep (ev_tstamp delay) 1327ev_sleep (ev_tstamp delay) EV_THROW
754{ 1328{
755 if (delay > 0.) 1329 if (delay > 0.)
756 { 1330 {
757#if EV_USE_NANOSLEEP 1331#if EV_USE_NANOSLEEP
758 struct timespec ts; 1332 struct timespec ts;
759 1333
760 ts.tv_sec = (time_t)delay; 1334 EV_TS_SET (ts, delay);
761 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
762
763 nanosleep (&ts, 0); 1335 nanosleep (&ts, 0);
764#elif defined(_WIN32) 1336#elif defined _WIN32
765 Sleep ((unsigned long)(delay * 1e3)); 1337 Sleep ((unsigned long)(delay * 1e3));
766#else 1338#else
767 struct timeval tv; 1339 struct timeval tv;
768 1340
769 tv.tv_sec = (time_t)delay;
770 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
771
772 /* 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 */
773 /* something not guaranteed by newer posix versions, but guaranteed */ 1342 /* something not guaranteed by newer posix versions, but guaranteed */
774 /* by older ones */ 1343 /* by older ones */
1344 EV_TV_SET (tv, delay);
775 select (0, 0, 0, 0, &tv); 1345 select (0, 0, 0, 0, &tv);
776#endif 1346#endif
777 } 1347 }
778} 1348}
779 1349
780/*****************************************************************************/ 1350/*****************************************************************************/
781 1351
782#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 */
783 1353
784/* find a suitable new size for the given array, */ 1354/* find a suitable new size for the given array, */
785/* hopefully by rounding to a ncie-to-malloc size */ 1355/* hopefully by rounding to a nice-to-malloc size */
786inline_size int 1356inline_size int
787array_nextsize (int elem, int cur, int cnt) 1357array_nextsize (int elem, int cur, int cnt)
788{ 1358{
789 int ncur = cur + 1; 1359 int ncur = cur + 1;
790 1360
791 do 1361 do
792 ncur <<= 1; 1362 ncur <<= 1;
793 while (cnt > ncur); 1363 while (cnt > ncur);
794 1364
795 /* 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 */
796 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1366 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
797 { 1367 {
798 ncur *= elem; 1368 ncur *= elem;
799 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);
800 ncur = ncur - sizeof (void *) * 4; 1370 ncur = ncur - sizeof (void *) * 4;
… …
802 } 1372 }
803 1373
804 return ncur; 1374 return ncur;
805} 1375}
806 1376
807static noinline void * 1377static void * noinline ecb_cold
808array_realloc (int elem, void *base, int *cur, int cnt) 1378array_realloc (int elem, void *base, int *cur, int cnt)
809{ 1379{
810 *cur = array_nextsize (elem, *cur, cnt); 1380 *cur = array_nextsize (elem, *cur, cnt);
811 return ev_realloc (base, elem * *cur); 1381 return ev_realloc (base, elem * *cur);
812} 1382}
… …
815 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1385 memset ((void *)(base), 0, sizeof (*(base)) * (count))
816 1386
817#define array_needsize(type,base,cur,cnt,init) \ 1387#define array_needsize(type,base,cur,cnt,init) \
818 if (expect_false ((cnt) > (cur))) \ 1388 if (expect_false ((cnt) > (cur))) \
819 { \ 1389 { \
820 int ocur_ = (cur); \ 1390 int ecb_unused ocur_ = (cur); \
821 (base) = (type *)array_realloc \ 1391 (base) = (type *)array_realloc \
822 (sizeof (type), (base), &(cur), (cnt)); \ 1392 (sizeof (type), (base), &(cur), (cnt)); \
823 init ((base) + (ocur_), (cur) - ocur_); \ 1393 init ((base) + (ocur_), (cur) - ocur_); \
824 } 1394 }
825 1395
… …
843pendingcb (EV_P_ ev_prepare *w, int revents) 1413pendingcb (EV_P_ ev_prepare *w, int revents)
844{ 1414{
845} 1415}
846 1416
847void noinline 1417void noinline
848ev_feed_event (EV_P_ void *w, int revents) 1418ev_feed_event (EV_P_ void *w, int revents) EV_THROW
849{ 1419{
850 W w_ = (W)w; 1420 W w_ = (W)w;
851 int pri = ABSPRI (w_); 1421 int pri = ABSPRI (w_);
852 1422
853 if (expect_false (w_->pending)) 1423 if (expect_false (w_->pending))
… …
857 w_->pending = ++pendingcnt [pri]; 1427 w_->pending = ++pendingcnt [pri];
858 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1428 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
859 pendings [pri][w_->pending - 1].w = w_; 1429 pendings [pri][w_->pending - 1].w = w_;
860 pendings [pri][w_->pending - 1].events = revents; 1430 pendings [pri][w_->pending - 1].events = revents;
861 } 1431 }
1432
1433 pendingpri = NUMPRI - 1;
862} 1434}
863 1435
864inline_speed void 1436inline_speed void
865feed_reverse (EV_P_ W w) 1437feed_reverse (EV_P_ W w)
866{ 1438{
… …
886} 1458}
887 1459
888/*****************************************************************************/ 1460/*****************************************************************************/
889 1461
890inline_speed void 1462inline_speed void
891fd_event_nc (EV_P_ int fd, int revents) 1463fd_event_nocheck (EV_P_ int fd, int revents)
892{ 1464{
893 ANFD *anfd = anfds + fd; 1465 ANFD *anfd = anfds + fd;
894 ev_io *w; 1466 ev_io *w;
895 1467
896 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)
… …
908fd_event (EV_P_ int fd, int revents) 1480fd_event (EV_P_ int fd, int revents)
909{ 1481{
910 ANFD *anfd = anfds + fd; 1482 ANFD *anfd = anfds + fd;
911 1483
912 if (expect_true (!anfd->reify)) 1484 if (expect_true (!anfd->reify))
913 fd_event_nc (EV_A_ fd, revents); 1485 fd_event_nocheck (EV_A_ fd, revents);
914} 1486}
915 1487
916void 1488void
917ev_feed_fd_event (EV_P_ int fd, int revents) 1489ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
918{ 1490{
919 if (fd >= 0 && fd < anfdmax) 1491 if (fd >= 0 && fd < anfdmax)
920 fd_event_nc (EV_A_ fd, revents); 1492 fd_event_nocheck (EV_A_ fd, revents);
921} 1493}
922 1494
923/* make sure the external fd watch events are in-sync */ 1495/* make sure the external fd watch events are in-sync */
924/* with the kernel/libev internal state */ 1496/* with the kernel/libev internal state */
925inline_size void 1497inline_size void
926fd_reify (EV_P) 1498fd_reify (EV_P)
927{ 1499{
928 int i; 1500 int i;
929 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
930 for (i = 0; i < fdchangecnt; ++i) 1527 for (i = 0; i < fdchangecnt; ++i)
931 { 1528 {
932 int fd = fdchanges [i]; 1529 int fd = fdchanges [i];
933 ANFD *anfd = anfds + fd; 1530 ANFD *anfd = anfds + fd;
934 ev_io *w; 1531 ev_io *w;
935 1532
936 unsigned char events = 0; 1533 unsigned char o_events = anfd->events;
1534 unsigned char o_reify = anfd->reify;
937 1535
938 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1536 anfd->reify = 0;
939 events |= (unsigned char)w->events;
940 1537
941#if EV_SELECT_IS_WINSOCKET 1538 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
942 if (events)
943 { 1539 {
944 unsigned long arg; 1540 anfd->events = 0;
945 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1541
946 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 |= */
947 } 1547 }
948#endif
949 1548
950 { 1549 if (o_reify & EV__IOFDSET)
951 unsigned char o_events = anfd->events;
952 unsigned char o_reify = anfd->reify;
953
954 anfd->reify = 0;
955 anfd->events = events;
956
957 if (o_events != events || o_reify & EV__IOFDSET)
958 backend_modify (EV_A_ fd, o_events, events); 1550 backend_modify (EV_A_ fd, o_events, anfd->events);
959 }
960 } 1551 }
961 1552
962 fdchangecnt = 0; 1553 fdchangecnt = 0;
963} 1554}
964 1555
… …
976 fdchanges [fdchangecnt - 1] = fd; 1567 fdchanges [fdchangecnt - 1] = fd;
977 } 1568 }
978} 1569}
979 1570
980/* 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 */
981inline_speed void 1572inline_speed void ecb_cold
982fd_kill (EV_P_ int fd) 1573fd_kill (EV_P_ int fd)
983{ 1574{
984 ev_io *w; 1575 ev_io *w;
985 1576
986 while ((w = (ev_io *)anfds [fd].head)) 1577 while ((w = (ev_io *)anfds [fd].head))
… …
988 ev_io_stop (EV_A_ w); 1579 ev_io_stop (EV_A_ w);
989 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);
990 } 1581 }
991} 1582}
992 1583
993/* check whether the given fd is atcually valid, for error recovery */ 1584/* check whether the given fd is actually valid, for error recovery */
994inline_size int 1585inline_size int ecb_cold
995fd_valid (int fd) 1586fd_valid (int fd)
996{ 1587{
997#ifdef _WIN32 1588#ifdef _WIN32
998 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1589 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
999#else 1590#else
1000 return fcntl (fd, F_GETFD) != -1; 1591 return fcntl (fd, F_GETFD) != -1;
1001#endif 1592#endif
1002} 1593}
1003 1594
1004/* called on EBADF to verify fds */ 1595/* called on EBADF to verify fds */
1005static void noinline 1596static void noinline ecb_cold
1006fd_ebadf (EV_P) 1597fd_ebadf (EV_P)
1007{ 1598{
1008 int fd; 1599 int fd;
1009 1600
1010 for (fd = 0; fd < anfdmax; ++fd) 1601 for (fd = 0; fd < anfdmax; ++fd)
… …
1012 if (!fd_valid (fd) && errno == EBADF) 1603 if (!fd_valid (fd) && errno == EBADF)
1013 fd_kill (EV_A_ fd); 1604 fd_kill (EV_A_ fd);
1014} 1605}
1015 1606
1016/* 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 */
1017static void noinline 1608static void noinline ecb_cold
1018fd_enomem (EV_P) 1609fd_enomem (EV_P)
1019{ 1610{
1020 int fd; 1611 int fd;
1021 1612
1022 for (fd = anfdmax; fd--; ) 1613 for (fd = anfdmax; fd--; )
… …
1040 anfds [fd].emask = 0; 1631 anfds [fd].emask = 0;
1041 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1632 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1042 } 1633 }
1043} 1634}
1044 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
1045/*****************************************************************************/ 1650/*****************************************************************************/
1046 1651
1047/* 1652/*
1048 * 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
1049 * 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
1050 * the branching factor of the d-tree. 1655 * the branching factor of the d-tree.
1051 */ 1656 */
1052 1657
1053/* 1658/*
… …
1201 1806
1202static ANSIG signals [EV_NSIG - 1]; 1807static ANSIG signals [EV_NSIG - 1];
1203 1808
1204/*****************************************************************************/ 1809/*****************************************************************************/
1205 1810
1206/* used to prepare libev internal fd's */ 1811#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1207/* this is not fork-safe */
1208inline_speed void
1209fd_intern (int fd)
1210{
1211#ifdef _WIN32
1212 unsigned long arg = 1;
1213 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1214#else
1215 fcntl (fd, F_SETFD, FD_CLOEXEC);
1216 fcntl (fd, F_SETFL, O_NONBLOCK);
1217#endif
1218}
1219 1812
1220static void noinline 1813static void noinline ecb_cold
1221evpipe_init (EV_P) 1814evpipe_init (EV_P)
1222{ 1815{
1223 if (!ev_is_active (&pipe_w)) 1816 if (!ev_is_active (&pipe_w))
1224 { 1817 {
1225#if EV_USE_EVENTFD 1818# if EV_USE_EVENTFD
1226 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1819 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1227 if (evfd < 0 && errno == EINVAL) 1820 if (evfd < 0 && errno == EINVAL)
1228 evfd = eventfd (0, 0); 1821 evfd = eventfd (0, 0);
1229 1822
1230 if (evfd >= 0) 1823 if (evfd >= 0)
… …
1232 evpipe [0] = -1; 1825 evpipe [0] = -1;
1233 fd_intern (evfd); /* doing it twice doesn't hurt */ 1826 fd_intern (evfd); /* doing it twice doesn't hurt */
1234 ev_io_set (&pipe_w, evfd, EV_READ); 1827 ev_io_set (&pipe_w, evfd, EV_READ);
1235 } 1828 }
1236 else 1829 else
1237#endif 1830# endif
1238 { 1831 {
1239 while (pipe (evpipe)) 1832 while (pipe (evpipe))
1240 ev_syserr ("(libev) error creating signal/async pipe"); 1833 ev_syserr ("(libev) error creating signal/async pipe");
1241 1834
1242 fd_intern (evpipe [0]); 1835 fd_intern (evpipe [0]);
… …
1247 ev_io_start (EV_A_ &pipe_w); 1840 ev_io_start (EV_A_ &pipe_w);
1248 ev_unref (EV_A); /* watcher should not keep loop alive */ 1841 ev_unref (EV_A); /* watcher should not keep loop alive */
1249 } 1842 }
1250} 1843}
1251 1844
1252inline_size void 1845inline_speed void
1253evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1846evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1254{ 1847{
1255 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)
1256 { 1862 {
1863 int old_errno;
1864
1865 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1866
1257 int old_errno = errno; /* save errno because write might clobber it */ 1867 old_errno = errno; /* save errno because write will clobber it */
1258
1259 *flag = 1;
1260 1868
1261#if EV_USE_EVENTFD 1869#if EV_USE_EVENTFD
1262 if (evfd >= 0) 1870 if (evfd >= 0)
1263 { 1871 {
1264 uint64_t counter = 1; 1872 uint64_t counter = 1;
1265 write (evfd, &counter, sizeof (uint64_t)); 1873 write (evfd, &counter, sizeof (uint64_t));
1266 } 1874 }
1267 else 1875 else
1268#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
1269 write (evpipe [1], &old_errno, 1); 1885 write (evpipe [1], &(evpipe [1]), 1);
1886#endif
1887 }
1270 1888
1271 errno = old_errno; 1889 errno = old_errno;
1272 } 1890 }
1273} 1891}
1274 1892
… …
1277static void 1895static void
1278pipecb (EV_P_ ev_io *iow, int revents) 1896pipecb (EV_P_ ev_io *iow, int revents)
1279{ 1897{
1280 int i; 1898 int i;
1281 1899
1900 if (revents & EV_READ)
1901 {
1282#if EV_USE_EVENTFD 1902#if EV_USE_EVENTFD
1283 if (evfd >= 0) 1903 if (evfd >= 0)
1284 { 1904 {
1285 uint64_t counter; 1905 uint64_t counter;
1286 read (evfd, &counter, sizeof (uint64_t)); 1906 read (evfd, &counter, sizeof (uint64_t));
1287 } 1907 }
1288 else 1908 else
1289#endif 1909#endif
1290 { 1910 {
1291 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
1292 read (evpipe [0], &dummy, 1); 1920 read (evpipe [0], &dummy, sizeof (dummy));
1921#endif
1922 }
1293 } 1923 }
1294 1924
1925 pipe_write_skipped = 0;
1926
1927 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1928
1929#if EV_SIGNAL_ENABLE
1295 if (sig_pending) 1930 if (sig_pending)
1296 { 1931 {
1297 sig_pending = 0; 1932 sig_pending = 0;
1933
1934 ECB_MEMORY_FENCE_RELEASE;
1298 1935
1299 for (i = EV_NSIG - 1; i--; ) 1936 for (i = EV_NSIG - 1; i--; )
1300 if (expect_false (signals [i].pending)) 1937 if (expect_false (signals [i].pending))
1301 ev_feed_signal_event (EV_A_ i + 1); 1938 ev_feed_signal_event (EV_A_ i + 1);
1302 } 1939 }
1940#endif
1303 1941
1304#if EV_ASYNC_ENABLE 1942#if EV_ASYNC_ENABLE
1305 if (async_pending) 1943 if (async_pending)
1306 { 1944 {
1307 async_pending = 0; 1945 async_pending = 0;
1946
1947 ECB_MEMORY_FENCE_RELEASE;
1308 1948
1309 for (i = asynccnt; i--; ) 1949 for (i = asynccnt; i--; )
1310 if (asyncs [i]->sent) 1950 if (asyncs [i]->sent)
1311 { 1951 {
1312 asyncs [i]->sent = 0; 1952 asyncs [i]->sent = 0;
… …
1316#endif 1956#endif
1317} 1957}
1318 1958
1319/*****************************************************************************/ 1959/*****************************************************************************/
1320 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
1321static void 1978static void
1322ev_sighandler (int signum) 1979ev_sighandler (int signum)
1323{ 1980{
1324#if EV_MULTIPLICITY
1325 EV_P = signals [signum - 1].loop;
1326#endif
1327
1328#ifdef _WIN32 1981#ifdef _WIN32
1329 signal (signum, ev_sighandler); 1982 signal (signum, ev_sighandler);
1330#endif 1983#endif
1331 1984
1332 signals [signum - 1].pending = 1; 1985 ev_feed_signal (signum);
1333 evpipe_write (EV_A_ &sig_pending);
1334} 1986}
1335 1987
1336void noinline 1988void noinline
1337ev_feed_signal_event (EV_P_ int signum) 1989ev_feed_signal_event (EV_P_ int signum) EV_THROW
1338{ 1990{
1339 WL w; 1991 WL w;
1340 1992
1341 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1993 if (expect_false (signum <= 0 || signum > EV_NSIG))
1342 return; 1994 return;
… …
1375 break; 2027 break;
1376 } 2028 }
1377} 2029}
1378#endif 2030#endif
1379 2031
2032#endif
2033
1380/*****************************************************************************/ 2034/*****************************************************************************/
1381 2035
2036#if EV_CHILD_ENABLE
1382static WL childs [EV_PID_HASHSIZE]; 2037static WL childs [EV_PID_HASHSIZE];
1383
1384#ifndef _WIN32
1385 2038
1386static ev_signal childev; 2039static ev_signal childev;
1387 2040
1388#ifndef WIFCONTINUED 2041#ifndef WIFCONTINUED
1389# define WIFCONTINUED(status) 0 2042# define WIFCONTINUED(status) 0
… …
1394child_reap (EV_P_ int chain, int pid, int status) 2047child_reap (EV_P_ int chain, int pid, int status)
1395{ 2048{
1396 ev_child *w; 2049 ev_child *w;
1397 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2050 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1398 2051
1399 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)
1400 { 2053 {
1401 if ((w->pid == pid || !w->pid) 2054 if ((w->pid == pid || !w->pid)
1402 && (!traced || (w->flags & 1))) 2055 && (!traced || (w->flags & 1)))
1403 { 2056 {
1404 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 */
… …
1429 /* 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 */
1430 /* 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 */
1431 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2084 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1432 2085
1433 child_reap (EV_A_ pid, pid, status); 2086 child_reap (EV_A_ pid, pid, status);
1434 if (EV_PID_HASHSIZE > 1) 2087 if ((EV_PID_HASHSIZE) > 1)
1435 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 */
1436} 2089}
1437 2090
1438#endif 2091#endif
1439 2092
1440/*****************************************************************************/ 2093/*****************************************************************************/
1441 2094
2095#if EV_USE_IOCP
2096# include "ev_iocp.c"
2097#endif
1442#if EV_USE_PORT 2098#if EV_USE_PORT
1443# include "ev_port.c" 2099# include "ev_port.c"
1444#endif 2100#endif
1445#if EV_USE_KQUEUE 2101#if EV_USE_KQUEUE
1446# include "ev_kqueue.c" 2102# include "ev_kqueue.c"
… …
1453#endif 2109#endif
1454#if EV_USE_SELECT 2110#if EV_USE_SELECT
1455# include "ev_select.c" 2111# include "ev_select.c"
1456#endif 2112#endif
1457 2113
1458int 2114int ecb_cold
1459ev_version_major (void) 2115ev_version_major (void) EV_THROW
1460{ 2116{
1461 return EV_VERSION_MAJOR; 2117 return EV_VERSION_MAJOR;
1462} 2118}
1463 2119
1464int 2120int ecb_cold
1465ev_version_minor (void) 2121ev_version_minor (void) EV_THROW
1466{ 2122{
1467 return EV_VERSION_MINOR; 2123 return EV_VERSION_MINOR;
1468} 2124}
1469 2125
1470/* 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 */
1471int inline_size 2127int inline_size ecb_cold
1472enable_secure (void) 2128enable_secure (void)
1473{ 2129{
1474#ifdef _WIN32 2130#ifdef _WIN32
1475 return 0; 2131 return 0;
1476#else 2132#else
1477 return getuid () != geteuid () 2133 return getuid () != geteuid ()
1478 || getgid () != getegid (); 2134 || getgid () != getegid ();
1479#endif 2135#endif
1480} 2136}
1481 2137
1482unsigned int 2138unsigned int ecb_cold
1483ev_supported_backends (void) 2139ev_supported_backends (void) EV_THROW
1484{ 2140{
1485 unsigned int flags = 0; 2141 unsigned int flags = 0;
1486 2142
1487 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2143 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1488 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2144 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1491 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2147 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1492 2148
1493 return flags; 2149 return flags;
1494} 2150}
1495 2151
1496unsigned int 2152unsigned int ecb_cold
1497ev_recommended_backends (void) 2153ev_recommended_backends (void) EV_THROW
1498{ 2154{
1499 unsigned int flags = ev_supported_backends (); 2155 unsigned int flags = ev_supported_backends ();
1500 2156
1501#ifndef __NetBSD__ 2157#ifndef __NetBSD__
1502 /* kqueue is borked on everything but netbsd apparently */ 2158 /* kqueue is borked on everything but netbsd apparently */
… …
1506#ifdef __APPLE__ 2162#ifdef __APPLE__
1507 /* only select works correctly on that "unix-certified" platform */ 2163 /* only select works correctly on that "unix-certified" platform */
1508 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2164 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1509 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 */
1510#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
1511 2170
1512 return flags; 2171 return flags;
1513} 2172}
1514 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
1515unsigned int 2186unsigned int
1516ev_embeddable_backends (void) 2187ev_backend (EV_P) EV_THROW
1517{ 2188{
1518 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2189 return backend;
1519
1520 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1521 /* please fix it and tell me how to detect the fix */
1522 flags &= ~EVBACKEND_EPOLL;
1523
1524 return flags;
1525} 2190}
1526 2191
2192#if EV_FEATURE_API
1527unsigned int 2193unsigned int
1528ev_backend (EV_P) 2194ev_iteration (EV_P) EV_THROW
1529{ 2195{
1530 return backend; 2196 return loop_count;
1531} 2197}
1532 2198
1533#if EV_MINIMAL < 2
1534unsigned int 2199unsigned int
1535ev_loop_count (EV_P) 2200ev_depth (EV_P) EV_THROW
1536{
1537 return loop_count;
1538}
1539
1540unsigned int
1541ev_loop_depth (EV_P)
1542{ 2201{
1543 return loop_depth; 2202 return loop_depth;
1544} 2203}
1545 2204
1546void 2205void
1547ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1548{ 2207{
1549 io_blocktime = interval; 2208 io_blocktime = interval;
1550} 2209}
1551 2210
1552void 2211void
1553ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2212ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1554{ 2213{
1555 timeout_blocktime = interval; 2214 timeout_blocktime = interval;
1556} 2215}
1557 2216
1558void 2217void
1559ev_set_userdata (EV_P_ void *data) 2218ev_set_userdata (EV_P_ void *data) EV_THROW
1560{ 2219{
1561 userdata = data; 2220 userdata = data;
1562} 2221}
1563 2222
1564void * 2223void *
1565ev_userdata (EV_P) 2224ev_userdata (EV_P) EV_THROW
1566{ 2225{
1567 return userdata; 2226 return userdata;
1568} 2227}
1569 2228
2229void
1570void 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
1571{ 2231{
1572 invoke_cb = invoke_pending_cb; 2232 invoke_cb = invoke_pending_cb;
1573} 2233}
1574 2234
2235void
1575void 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
1576{ 2237{
1577 release_cb = release; 2238 release_cb = release;
1578 acquire_cb = acquire; 2239 acquire_cb = acquire;
1579} 2240}
1580#endif 2241#endif
1581 2242
1582/* initialise a loop structure, must be zero-initialised */ 2243/* initialise a loop structure, must be zero-initialised */
1583static void noinline 2244static void noinline ecb_cold
1584loop_init (EV_P_ unsigned int flags) 2245loop_init (EV_P_ unsigned int flags) EV_THROW
1585{ 2246{
1586 if (!backend) 2247 if (!backend)
1587 { 2248 {
2249 origflags = flags;
2250
1588#if EV_USE_REALTIME 2251#if EV_USE_REALTIME
1589 if (!have_realtime) 2252 if (!have_realtime)
1590 { 2253 {
1591 struct timespec ts; 2254 struct timespec ts;
1592 2255
… …
1614 if (!(flags & EVFLAG_NOENV) 2277 if (!(flags & EVFLAG_NOENV)
1615 && !enable_secure () 2278 && !enable_secure ()
1616 && getenv ("LIBEV_FLAGS")) 2279 && getenv ("LIBEV_FLAGS"))
1617 flags = atoi (getenv ("LIBEV_FLAGS")); 2280 flags = atoi (getenv ("LIBEV_FLAGS"));
1618 2281
1619 ev_rt_now = ev_time (); 2282 ev_rt_now = ev_time ();
1620 mn_now = get_clock (); 2283 mn_now = get_clock ();
1621 now_floor = mn_now; 2284 now_floor = mn_now;
1622 rtmn_diff = ev_rt_now - mn_now; 2285 rtmn_diff = ev_rt_now - mn_now;
1623#if EV_MINIMAL < 2 2286#if EV_FEATURE_API
1624 invoke_cb = ev_invoke_pending; 2287 invoke_cb = ev_invoke_pending;
1625#endif 2288#endif
1626 2289
1627 io_blocktime = 0.; 2290 io_blocktime = 0.;
1628 timeout_blocktime = 0.; 2291 timeout_blocktime = 0.;
1629 backend = 0; 2292 backend = 0;
1630 backend_fd = -1; 2293 backend_fd = -1;
1631 sig_pending = 0; 2294 sig_pending = 0;
1632#if EV_ASYNC_ENABLE 2295#if EV_ASYNC_ENABLE
1633 async_pending = 0; 2296 async_pending = 0;
1634#endif 2297#endif
2298 pipe_write_skipped = 0;
2299 pipe_write_wanted = 0;
1635#if EV_USE_INOTIFY 2300#if EV_USE_INOTIFY
1636 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2301 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1637#endif 2302#endif
1638#if EV_USE_SIGNALFD 2303#if EV_USE_SIGNALFD
1639 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2304 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1640#endif 2305#endif
1641 2306
1642 if (!(flags & 0x0000ffffU)) 2307 if (!(flags & EVBACKEND_MASK))
1643 flags |= ev_recommended_backends (); 2308 flags |= ev_recommended_backends ();
1644 2309
2310#if EV_USE_IOCP
2311 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2312#endif
1645#if EV_USE_PORT 2313#if EV_USE_PORT
1646 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2314 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1647#endif 2315#endif
1648#if EV_USE_KQUEUE 2316#if EV_USE_KQUEUE
1649 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1658 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2326 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1659#endif 2327#endif
1660 2328
1661 ev_prepare_init (&pending_w, pendingcb); 2329 ev_prepare_init (&pending_w, pendingcb);
1662 2330
2331#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1663 ev_init (&pipe_w, pipecb); 2332 ev_init (&pipe_w, pipecb);
1664 ev_set_priority (&pipe_w, EV_MAXPRI); 2333 ev_set_priority (&pipe_w, EV_MAXPRI);
2334#endif
1665 } 2335 }
1666} 2336}
1667 2337
1668/* free up a loop structure */ 2338/* free up a loop structure */
1669static void noinline 2339void ecb_cold
1670loop_destroy (EV_P) 2340ev_loop_destroy (EV_P)
1671{ 2341{
1672 int i; 2342 int i;
2343
2344#if EV_MULTIPLICITY
2345 /* mimic free (0) */
2346 if (!EV_A)
2347 return;
2348#endif
2349
2350#if EV_CLEANUP_ENABLE
2351 /* queue cleanup watchers (and execute them) */
2352 if (expect_false (cleanupcnt))
2353 {
2354 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2355 EV_INVOKE_PENDING;
2356 }
2357#endif
2358
2359#if EV_CHILD_ENABLE
2360 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2361 {
2362 ev_ref (EV_A); /* child watcher */
2363 ev_signal_stop (EV_A_ &childev);
2364 }
2365#endif
1673 2366
1674 if (ev_is_active (&pipe_w)) 2367 if (ev_is_active (&pipe_w))
1675 { 2368 {
1676 /*ev_ref (EV_A);*/ 2369 /*ev_ref (EV_A);*/
1677 /*ev_io_stop (EV_A_ &pipe_w);*/ 2370 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1699#endif 2392#endif
1700 2393
1701 if (backend_fd >= 0) 2394 if (backend_fd >= 0)
1702 close (backend_fd); 2395 close (backend_fd);
1703 2396
2397#if EV_USE_IOCP
2398 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2399#endif
1704#if EV_USE_PORT 2400#if EV_USE_PORT
1705 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2401 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1706#endif 2402#endif
1707#if EV_USE_KQUEUE 2403#if EV_USE_KQUEUE
1708 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2404 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1735 array_free (periodic, EMPTY); 2431 array_free (periodic, EMPTY);
1736#endif 2432#endif
1737#if EV_FORK_ENABLE 2433#if EV_FORK_ENABLE
1738 array_free (fork, EMPTY); 2434 array_free (fork, EMPTY);
1739#endif 2435#endif
2436#if EV_CLEANUP_ENABLE
2437 array_free (cleanup, EMPTY);
2438#endif
1740 array_free (prepare, EMPTY); 2439 array_free (prepare, EMPTY);
1741 array_free (check, EMPTY); 2440 array_free (check, EMPTY);
1742#if EV_ASYNC_ENABLE 2441#if EV_ASYNC_ENABLE
1743 array_free (async, EMPTY); 2442 array_free (async, EMPTY);
1744#endif 2443#endif
1745 2444
1746 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
1747} 2455}
1748 2456
1749#if EV_USE_INOTIFY 2457#if EV_USE_INOTIFY
1750inline_size void infy_fork (EV_P); 2458inline_size void infy_fork (EV_P);
1751#endif 2459#endif
… …
1766 infy_fork (EV_A); 2474 infy_fork (EV_A);
1767#endif 2475#endif
1768 2476
1769 if (ev_is_active (&pipe_w)) 2477 if (ev_is_active (&pipe_w))
1770 { 2478 {
1771 /* this "locks" the handlers against writing to the pipe */ 2479 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1772 /* while we modify the fd vars */
1773 sig_pending = 1;
1774#if EV_ASYNC_ENABLE
1775 async_pending = 1;
1776#endif
1777 2480
1778 ev_ref (EV_A); 2481 ev_ref (EV_A);
1779 ev_io_stop (EV_A_ &pipe_w); 2482 ev_io_stop (EV_A_ &pipe_w);
1780 2483
1781#if EV_USE_EVENTFD 2484#if EV_USE_EVENTFD
… …
1787 { 2490 {
1788 EV_WIN32_CLOSE_FD (evpipe [0]); 2491 EV_WIN32_CLOSE_FD (evpipe [0]);
1789 EV_WIN32_CLOSE_FD (evpipe [1]); 2492 EV_WIN32_CLOSE_FD (evpipe [1]);
1790 } 2493 }
1791 2494
2495#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1792 evpipe_init (EV_A); 2496 evpipe_init (EV_A);
1793 /* now iterate over everything, in case we missed something */ 2497 /* now iterate over everything, in case we missed something */
1794 pipecb (EV_A_ &pipe_w, EV_READ); 2498 pipecb (EV_A_ &pipe_w, EV_READ);
2499#endif
1795 } 2500 }
1796 2501
1797 postfork = 0; 2502 postfork = 0;
1798} 2503}
1799 2504
1800#if EV_MULTIPLICITY 2505#if EV_MULTIPLICITY
1801 2506
1802struct ev_loop * 2507struct ev_loop * ecb_cold
1803ev_loop_new (unsigned int flags) 2508ev_loop_new (unsigned int flags) EV_THROW
1804{ 2509{
1805 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2510 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1806 2511
1807 memset (EV_A, 0, sizeof (struct ev_loop)); 2512 memset (EV_A, 0, sizeof (struct ev_loop));
1808 loop_init (EV_A_ flags); 2513 loop_init (EV_A_ flags);
1809 2514
1810 if (ev_backend (EV_A)) 2515 if (ev_backend (EV_A))
1811 return EV_A; 2516 return EV_A;
1812 2517
2518 ev_free (EV_A);
1813 return 0; 2519 return 0;
1814} 2520}
1815 2521
1816void
1817ev_loop_destroy (EV_P)
1818{
1819 loop_destroy (EV_A);
1820 ev_free (loop);
1821}
1822
1823void
1824ev_loop_fork (EV_P)
1825{
1826 postfork = 1; /* must be in line with ev_default_fork */
1827}
1828#endif /* multiplicity */ 2522#endif /* multiplicity */
1829 2523
1830#if EV_VERIFY 2524#if EV_VERIFY
1831static void noinline 2525static void noinline ecb_cold
1832verify_watcher (EV_P_ W w) 2526verify_watcher (EV_P_ W w)
1833{ 2527{
1834 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));
1835 2529
1836 if (w->pending) 2530 if (w->pending)
1837 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));
1838} 2532}
1839 2533
1840static void noinline 2534static void noinline ecb_cold
1841verify_heap (EV_P_ ANHE *heap, int N) 2535verify_heap (EV_P_ ANHE *heap, int N)
1842{ 2536{
1843 int i; 2537 int i;
1844 2538
1845 for (i = HEAP0; i < N + HEAP0; ++i) 2539 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1850 2544
1851 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2545 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1852 } 2546 }
1853} 2547}
1854 2548
1855static void noinline 2549static void noinline ecb_cold
1856array_verify (EV_P_ W *ws, int cnt) 2550array_verify (EV_P_ W *ws, int cnt)
1857{ 2551{
1858 while (cnt--) 2552 while (cnt--)
1859 { 2553 {
1860 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2554 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1861 verify_watcher (EV_A_ ws [cnt]); 2555 verify_watcher (EV_A_ ws [cnt]);
1862 } 2556 }
1863} 2557}
1864#endif 2558#endif
1865 2559
1866#if EV_MINIMAL < 2 2560#if EV_FEATURE_API
1867void 2561void ecb_cold
1868ev_loop_verify (EV_P) 2562ev_verify (EV_P) EV_THROW
1869{ 2563{
1870#if EV_VERIFY 2564#if EV_VERIFY
1871 int i; 2565 int i;
1872 WL w; 2566 WL w, w2;
1873 2567
1874 assert (activecnt >= -1); 2568 assert (activecnt >= -1);
1875 2569
1876 assert (fdchangemax >= fdchangecnt); 2570 assert (fdchangemax >= fdchangecnt);
1877 for (i = 0; i < fdchangecnt; ++i) 2571 for (i = 0; i < fdchangecnt; ++i)
1878 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2572 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1879 2573
1880 assert (anfdmax >= 0); 2574 assert (anfdmax >= 0);
1881 for (i = 0; i < anfdmax; ++i) 2575 for (i = 0; i < anfdmax; ++i)
2576 {
2577 int j = 0;
2578
1882 for (w = anfds [i].head; w; w = w->next) 2579 for (w = w2 = anfds [i].head; w; w = w->next)
1883 { 2580 {
1884 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
1885 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));
1886 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));
1887 } 2591 }
2592 }
1888 2593
1889 assert (timermax >= timercnt); 2594 assert (timermax >= timercnt);
1890 verify_heap (EV_A_ timers, timercnt); 2595 verify_heap (EV_A_ timers, timercnt);
1891 2596
1892#if EV_PERIODIC_ENABLE 2597#if EV_PERIODIC_ENABLE
… …
1907#if EV_FORK_ENABLE 2612#if EV_FORK_ENABLE
1908 assert (forkmax >= forkcnt); 2613 assert (forkmax >= forkcnt);
1909 array_verify (EV_A_ (W *)forks, forkcnt); 2614 array_verify (EV_A_ (W *)forks, forkcnt);
1910#endif 2615#endif
1911 2616
2617#if EV_CLEANUP_ENABLE
2618 assert (cleanupmax >= cleanupcnt);
2619 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2620#endif
2621
1912#if EV_ASYNC_ENABLE 2622#if EV_ASYNC_ENABLE
1913 assert (asyncmax >= asynccnt); 2623 assert (asyncmax >= asynccnt);
1914 array_verify (EV_A_ (W *)asyncs, asynccnt); 2624 array_verify (EV_A_ (W *)asyncs, asynccnt);
1915#endif 2625#endif
1916 2626
2627#if EV_PREPARE_ENABLE
1917 assert (preparemax >= preparecnt); 2628 assert (preparemax >= preparecnt);
1918 array_verify (EV_A_ (W *)prepares, preparecnt); 2629 array_verify (EV_A_ (W *)prepares, preparecnt);
2630#endif
1919 2631
2632#if EV_CHECK_ENABLE
1920 assert (checkmax >= checkcnt); 2633 assert (checkmax >= checkcnt);
1921 array_verify (EV_A_ (W *)checks, checkcnt); 2634 array_verify (EV_A_ (W *)checks, checkcnt);
2635#endif
1922 2636
1923# if 0 2637# if 0
2638#if EV_CHILD_ENABLE
1924 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)
1925 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2640 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2641#endif
1926# endif 2642# endif
1927#endif 2643#endif
1928} 2644}
1929#endif 2645#endif
1930 2646
1931#if EV_MULTIPLICITY 2647#if EV_MULTIPLICITY
1932struct ev_loop * 2648struct ev_loop * ecb_cold
1933ev_default_loop_init (unsigned int flags)
1934#else 2649#else
1935int 2650int
2651#endif
1936ev_default_loop (unsigned int flags) 2652ev_default_loop (unsigned int flags) EV_THROW
1937#endif
1938{ 2653{
1939 if (!ev_default_loop_ptr) 2654 if (!ev_default_loop_ptr)
1940 { 2655 {
1941#if EV_MULTIPLICITY 2656#if EV_MULTIPLICITY
1942 EV_P = ev_default_loop_ptr = &default_loop_struct; 2657 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1946 2661
1947 loop_init (EV_A_ flags); 2662 loop_init (EV_A_ flags);
1948 2663
1949 if (ev_backend (EV_A)) 2664 if (ev_backend (EV_A))
1950 { 2665 {
1951#ifndef _WIN32 2666#if EV_CHILD_ENABLE
1952 ev_signal_init (&childev, childcb, SIGCHLD); 2667 ev_signal_init (&childev, childcb, SIGCHLD);
1953 ev_set_priority (&childev, EV_MAXPRI); 2668 ev_set_priority (&childev, EV_MAXPRI);
1954 ev_signal_start (EV_A_ &childev); 2669 ev_signal_start (EV_A_ &childev);
1955 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2670 ev_unref (EV_A); /* child watcher should not keep loop alive */
1956#endif 2671#endif
… …
1961 2676
1962 return ev_default_loop_ptr; 2677 return ev_default_loop_ptr;
1963} 2678}
1964 2679
1965void 2680void
1966ev_default_destroy (void) 2681ev_loop_fork (EV_P) EV_THROW
1967{ 2682{
1968#if EV_MULTIPLICITY
1969 EV_P = ev_default_loop_ptr;
1970#endif
1971
1972 ev_default_loop_ptr = 0;
1973
1974#ifndef _WIN32
1975 ev_ref (EV_A); /* child watcher */
1976 ev_signal_stop (EV_A_ &childev);
1977#endif
1978
1979 loop_destroy (EV_A);
1980}
1981
1982void
1983ev_default_fork (void)
1984{
1985#if EV_MULTIPLICITY
1986 EV_P = ev_default_loop_ptr;
1987#endif
1988
1989 postfork = 1; /* must be in line with ev_loop_fork */ 2683 postfork = 1; /* must be in line with ev_default_fork */
1990} 2684}
1991 2685
1992/*****************************************************************************/ 2686/*****************************************************************************/
1993 2687
1994void 2688void
… …
1996{ 2690{
1997 EV_CB_INVOKE ((W)w, revents); 2691 EV_CB_INVOKE ((W)w, revents);
1998} 2692}
1999 2693
2000unsigned int 2694unsigned int
2001ev_pending_count (EV_P) 2695ev_pending_count (EV_P) EV_THROW
2002{ 2696{
2003 int pri; 2697 int pri;
2004 unsigned int count = 0; 2698 unsigned int count = 0;
2005 2699
2006 for (pri = NUMPRI; pri--; ) 2700 for (pri = NUMPRI; pri--; )
… …
2010} 2704}
2011 2705
2012void noinline 2706void noinline
2013ev_invoke_pending (EV_P) 2707ev_invoke_pending (EV_P)
2014{ 2708{
2015 int pri; 2709 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2016
2017 for (pri = NUMPRI; pri--; )
2018 while (pendingcnt [pri]) 2710 while (pendingcnt [pendingpri])
2019 { 2711 {
2020 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2712 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2021
2022 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2023 /* ^ this is no longer true, as pending_w could be here */
2024 2713
2025 p->w->pending = 0; 2714 p->w->pending = 0;
2026 EV_CB_INVOKE (p->w, p->events); 2715 EV_CB_INVOKE (p->w, p->events);
2027 EV_FREQUENT_CHECK; 2716 EV_FREQUENT_CHECK;
2028 } 2717 }
… …
2085 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2086 feed_reverse (EV_A_ (W)w); 2775 feed_reverse (EV_A_ (W)w);
2087 } 2776 }
2088 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2777 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2089 2778
2090 feed_reverse_done (EV_A_ EV_TIMEOUT); 2779 feed_reverse_done (EV_A_ EV_TIMER);
2091 } 2780 }
2092} 2781}
2093 2782
2094#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
2095/* make periodics pending */ 2809/* make periodics pending */
2096inline_size void 2810inline_size void
2097periodics_reify (EV_P) 2811periodics_reify (EV_P)
2098{ 2812{
2099 EV_FREQUENT_CHECK; 2813 EV_FREQUENT_CHECK;
… …
2118 ANHE_at_cache (periodics [HEAP0]); 2832 ANHE_at_cache (periodics [HEAP0]);
2119 downheap (periodics, periodiccnt, HEAP0); 2833 downheap (periodics, periodiccnt, HEAP0);
2120 } 2834 }
2121 else if (w->interval) 2835 else if (w->interval)
2122 { 2836 {
2123 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2837 periodic_recalc (EV_A_ w);
2124 /* if next trigger time is not sufficiently in the future, put it there */
2125 /* this might happen because of floating point inexactness */
2126 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2127 {
2128 ev_at (w) += w->interval;
2129
2130 /* if interval is unreasonably low we might still have a time in the past */
2131 /* so correct this. this will make the periodic very inexact, but the user */
2132 /* has effectively asked to get triggered more often than possible */
2133 if (ev_at (w) < ev_rt_now)
2134 ev_at (w) = ev_rt_now;
2135 }
2136
2137 ANHE_at_cache (periodics [HEAP0]); 2838 ANHE_at_cache (periodics [HEAP0]);
2138 downheap (periodics, periodiccnt, HEAP0); 2839 downheap (periodics, periodiccnt, HEAP0);
2139 } 2840 }
2140 else 2841 else
2141 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2842 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2148 feed_reverse_done (EV_A_ EV_PERIODIC); 2849 feed_reverse_done (EV_A_ EV_PERIODIC);
2149 } 2850 }
2150} 2851}
2151 2852
2152/* simply recalculate all periodics */ 2853/* simply recalculate all periodics */
2153/* 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? */
2154static void noinline 2855static void noinline ecb_cold
2155periodics_reschedule (EV_P) 2856periodics_reschedule (EV_P)
2156{ 2857{
2157 int i; 2858 int i;
2158 2859
2159 /* adjust periodics after time jump */ 2860 /* adjust periodics after time jump */
… …
2162 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2863 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2163 2864
2164 if (w->reschedule_cb) 2865 if (w->reschedule_cb)
2165 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2866 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2166 else if (w->interval) 2867 else if (w->interval)
2167 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2868 periodic_recalc (EV_A_ w);
2168 2869
2169 ANHE_at_cache (periodics [i]); 2870 ANHE_at_cache (periodics [i]);
2170 } 2871 }
2171 2872
2172 reheap (periodics, periodiccnt); 2873 reheap (periodics, periodiccnt);
2173} 2874}
2174#endif 2875#endif
2175 2876
2176/* adjust all timers by a given offset */ 2877/* adjust all timers by a given offset */
2177static void noinline 2878static void noinline ecb_cold
2178timers_reschedule (EV_P_ ev_tstamp adjust) 2879timers_reschedule (EV_P_ ev_tstamp adjust)
2179{ 2880{
2180 int i; 2881 int i;
2181 2882
2182 for (i = 0; i < timercnt; ++i) 2883 for (i = 0; i < timercnt; ++i)
… …
2219 * 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
2220 * in the unlikely event of having been preempted here. 2921 * in the unlikely event of having been preempted here.
2221 */ 2922 */
2222 for (i = 4; --i; ) 2923 for (i = 4; --i; )
2223 { 2924 {
2925 ev_tstamp diff;
2224 rtmn_diff = ev_rt_now - mn_now; 2926 rtmn_diff = ev_rt_now - mn_now;
2225 2927
2928 diff = odiff - rtmn_diff;
2929
2226 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2930 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2227 return; /* all is well */ 2931 return; /* all is well */
2228 2932
2229 ev_rt_now = ev_time (); 2933 ev_rt_now = ev_time ();
2230 mn_now = get_clock (); 2934 mn_now = get_clock ();
2231 now_floor = mn_now; 2935 now_floor = mn_now;
… …
2253 2957
2254 mn_now = ev_rt_now; 2958 mn_now = ev_rt_now;
2255 } 2959 }
2256} 2960}
2257 2961
2258void 2962int
2259ev_loop (EV_P_ int flags) 2963ev_run (EV_P_ int flags)
2260{ 2964{
2261#if EV_MINIMAL < 2 2965#if EV_FEATURE_API
2262 ++loop_depth; 2966 ++loop_depth;
2263#endif 2967#endif
2264 2968
2265 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));
2266 2970
2267 loop_done = EVUNLOOP_CANCEL; 2971 loop_done = EVBREAK_CANCEL;
2268 2972
2269 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 */
2270 2974
2271 do 2975 do
2272 { 2976 {
2273#if EV_VERIFY >= 2 2977#if EV_VERIFY >= 2
2274 ev_loop_verify (EV_A); 2978 ev_verify (EV_A);
2275#endif 2979#endif
2276 2980
2277#ifndef _WIN32 2981#ifndef _WIN32
2278 if (expect_false (curpid)) /* penalise the forking check even more */ 2982 if (expect_false (curpid)) /* penalise the forking check even more */
2279 if (expect_false (getpid () != curpid)) 2983 if (expect_false (getpid () != curpid))
… …
2291 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2995 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2292 EV_INVOKE_PENDING; 2996 EV_INVOKE_PENDING;
2293 } 2997 }
2294#endif 2998#endif
2295 2999
3000#if EV_PREPARE_ENABLE
2296 /* queue prepare watchers (and execute them) */ 3001 /* queue prepare watchers (and execute them) */
2297 if (expect_false (preparecnt)) 3002 if (expect_false (preparecnt))
2298 { 3003 {
2299 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3004 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2300 EV_INVOKE_PENDING; 3005 EV_INVOKE_PENDING;
2301 } 3006 }
3007#endif
2302 3008
2303 if (expect_false (loop_done)) 3009 if (expect_false (loop_done))
2304 break; 3010 break;
2305 3011
2306 /* we might have forked, so reify kernel state if necessary */ 3012 /* we might have forked, so reify kernel state if necessary */
… …
2313 /* calculate blocking time */ 3019 /* calculate blocking time */
2314 { 3020 {
2315 ev_tstamp waittime = 0.; 3021 ev_tstamp waittime = 0.;
2316 ev_tstamp sleeptime = 0.; 3022 ev_tstamp sleeptime = 0.;
2317 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
2318 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3035 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2319 { 3036 {
2320 /* remember old timestamp for io_blocktime calculation */
2321 ev_tstamp prev_mn_now = mn_now;
2322
2323 /* update time to cancel out callback processing overhead */
2324 time_update (EV_A_ 1e100);
2325
2326 waittime = MAX_BLOCKTIME; 3037 waittime = MAX_BLOCKTIME;
2327 3038
2328 if (timercnt) 3039 if (timercnt)
2329 { 3040 {
2330 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3041 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2331 if (waittime > to) waittime = to; 3042 if (waittime > to) waittime = to;
2332 } 3043 }
2333 3044
2334#if EV_PERIODIC_ENABLE 3045#if EV_PERIODIC_ENABLE
2335 if (periodiccnt) 3046 if (periodiccnt)
2336 { 3047 {
2337 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3048 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2338 if (waittime > to) waittime = to; 3049 if (waittime > to) waittime = to;
2339 } 3050 }
2340#endif 3051#endif
2341 3052
2342 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3053 /* don't let timeouts decrease the waittime below timeout_blocktime */
2343 if (expect_false (waittime < timeout_blocktime)) 3054 if (expect_false (waittime < timeout_blocktime))
2344 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;
2345 3061
2346 /* extra check because io_blocktime is commonly 0 */ 3062 /* extra check because io_blocktime is commonly 0 */
2347 if (expect_false (io_blocktime)) 3063 if (expect_false (io_blocktime))
2348 { 3064 {
2349 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3065 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2350 3066
2351 if (sleeptime > waittime - backend_fudge) 3067 if (sleeptime > waittime - backend_mintime)
2352 sleeptime = waittime - backend_fudge; 3068 sleeptime = waittime - backend_mintime;
2353 3069
2354 if (expect_true (sleeptime > 0.)) 3070 if (expect_true (sleeptime > 0.))
2355 { 3071 {
2356 ev_sleep (sleeptime); 3072 ev_sleep (sleeptime);
2357 waittime -= sleeptime; 3073 waittime -= sleeptime;
2358 } 3074 }
2359 } 3075 }
2360 } 3076 }
2361 3077
2362#if EV_MINIMAL < 2 3078#if EV_FEATURE_API
2363 ++loop_count; 3079 ++loop_count;
2364#endif 3080#endif
2365 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3081 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2366 backend_poll (EV_A_ waittime); 3082 backend_poll (EV_A_ waittime);
2367 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
2368 3093
2369 /* update ev_rt_now, do magic */ 3094 /* update ev_rt_now, do magic */
2370 time_update (EV_A_ waittime + sleeptime); 3095 time_update (EV_A_ waittime + sleeptime);
2371 } 3096 }
2372 3097
… …
2379#if EV_IDLE_ENABLE 3104#if EV_IDLE_ENABLE
2380 /* queue idle watchers unless other events are pending */ 3105 /* queue idle watchers unless other events are pending */
2381 idle_reify (EV_A); 3106 idle_reify (EV_A);
2382#endif 3107#endif
2383 3108
3109#if EV_CHECK_ENABLE
2384 /* queue check watchers, to be executed first */ 3110 /* queue check watchers, to be executed first */
2385 if (expect_false (checkcnt)) 3111 if (expect_false (checkcnt))
2386 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3112 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3113#endif
2387 3114
2388 EV_INVOKE_PENDING; 3115 EV_INVOKE_PENDING;
2389 } 3116 }
2390 while (expect_true ( 3117 while (expect_true (
2391 activecnt 3118 activecnt
2392 && !loop_done 3119 && !loop_done
2393 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3120 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2394 )); 3121 ));
2395 3122
2396 if (loop_done == EVUNLOOP_ONE) 3123 if (loop_done == EVBREAK_ONE)
2397 loop_done = EVUNLOOP_CANCEL; 3124 loop_done = EVBREAK_CANCEL;
2398 3125
2399#if EV_MINIMAL < 2 3126#if EV_FEATURE_API
2400 --loop_depth; 3127 --loop_depth;
2401#endif 3128#endif
3129
3130 return activecnt;
2402} 3131}
2403 3132
2404void 3133void
2405ev_unloop (EV_P_ int how) 3134ev_break (EV_P_ int how) EV_THROW
2406{ 3135{
2407 loop_done = how; 3136 loop_done = how;
2408} 3137}
2409 3138
2410void 3139void
2411ev_ref (EV_P) 3140ev_ref (EV_P) EV_THROW
2412{ 3141{
2413 ++activecnt; 3142 ++activecnt;
2414} 3143}
2415 3144
2416void 3145void
2417ev_unref (EV_P) 3146ev_unref (EV_P) EV_THROW
2418{ 3147{
2419 --activecnt; 3148 --activecnt;
2420} 3149}
2421 3150
2422void 3151void
2423ev_now_update (EV_P) 3152ev_now_update (EV_P) EV_THROW
2424{ 3153{
2425 time_update (EV_A_ 1e100); 3154 time_update (EV_A_ 1e100);
2426} 3155}
2427 3156
2428void 3157void
2429ev_suspend (EV_P) 3158ev_suspend (EV_P) EV_THROW
2430{ 3159{
2431 ev_now_update (EV_A); 3160 ev_now_update (EV_A);
2432} 3161}
2433 3162
2434void 3163void
2435ev_resume (EV_P) 3164ev_resume (EV_P) EV_THROW
2436{ 3165{
2437 ev_tstamp mn_prev = mn_now; 3166 ev_tstamp mn_prev = mn_now;
2438 3167
2439 ev_now_update (EV_A); 3168 ev_now_update (EV_A);
2440 timers_reschedule (EV_A_ mn_now - mn_prev); 3169 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2479 w->pending = 0; 3208 w->pending = 0;
2480 } 3209 }
2481} 3210}
2482 3211
2483int 3212int
2484ev_clear_pending (EV_P_ void *w) 3213ev_clear_pending (EV_P_ void *w) EV_THROW
2485{ 3214{
2486 W w_ = (W)w; 3215 W w_ = (W)w;
2487 int pending = w_->pending; 3216 int pending = w_->pending;
2488 3217
2489 if (expect_true (pending)) 3218 if (expect_true (pending))
… …
2522} 3251}
2523 3252
2524/*****************************************************************************/ 3253/*****************************************************************************/
2525 3254
2526void noinline 3255void noinline
2527ev_io_start (EV_P_ ev_io *w) 3256ev_io_start (EV_P_ ev_io *w) EV_THROW
2528{ 3257{
2529 int fd = w->fd; 3258 int fd = w->fd;
2530 3259
2531 if (expect_false (ev_is_active (w))) 3260 if (expect_false (ev_is_active (w)))
2532 return; 3261 return;
… …
2538 3267
2539 ev_start (EV_A_ (W)w, 1); 3268 ev_start (EV_A_ (W)w, 1);
2540 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3269 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2541 wlist_add (&anfds[fd].head, (WL)w); 3270 wlist_add (&anfds[fd].head, (WL)w);
2542 3271
3272 /* common bug, apparently */
3273 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3274
2543 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);
2544 w->events &= ~EV__IOFDSET; 3276 w->events &= ~EV__IOFDSET;
2545 3277
2546 EV_FREQUENT_CHECK; 3278 EV_FREQUENT_CHECK;
2547} 3279}
2548 3280
2549void noinline 3281void noinline
2550ev_io_stop (EV_P_ ev_io *w) 3282ev_io_stop (EV_P_ ev_io *w) EV_THROW
2551{ 3283{
2552 clear_pending (EV_A_ (W)w); 3284 clear_pending (EV_A_ (W)w);
2553 if (expect_false (!ev_is_active (w))) 3285 if (expect_false (!ev_is_active (w)))
2554 return; 3286 return;
2555 3287
… …
2558 EV_FREQUENT_CHECK; 3290 EV_FREQUENT_CHECK;
2559 3291
2560 wlist_del (&anfds[w->fd].head, (WL)w); 3292 wlist_del (&anfds[w->fd].head, (WL)w);
2561 ev_stop (EV_A_ (W)w); 3293 ev_stop (EV_A_ (W)w);
2562 3294
2563 fd_change (EV_A_ w->fd, 1); 3295 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2564 3296
2565 EV_FREQUENT_CHECK; 3297 EV_FREQUENT_CHECK;
2566} 3298}
2567 3299
2568void noinline 3300void noinline
2569ev_timer_start (EV_P_ ev_timer *w) 3301ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2570{ 3302{
2571 if (expect_false (ev_is_active (w))) 3303 if (expect_false (ev_is_active (w)))
2572 return; 3304 return;
2573 3305
2574 ev_at (w) += mn_now; 3306 ev_at (w) += mn_now;
… …
2588 3320
2589 /*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));*/
2590} 3322}
2591 3323
2592void noinline 3324void noinline
2593ev_timer_stop (EV_P_ ev_timer *w) 3325ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2594{ 3326{
2595 clear_pending (EV_A_ (W)w); 3327 clear_pending (EV_A_ (W)w);
2596 if (expect_false (!ev_is_active (w))) 3328 if (expect_false (!ev_is_active (w)))
2597 return; 3329 return;
2598 3330
… …
2618 3350
2619 EV_FREQUENT_CHECK; 3351 EV_FREQUENT_CHECK;
2620} 3352}
2621 3353
2622void noinline 3354void noinline
2623ev_timer_again (EV_P_ ev_timer *w) 3355ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2624{ 3356{
2625 EV_FREQUENT_CHECK; 3357 EV_FREQUENT_CHECK;
3358
3359 clear_pending (EV_A_ (W)w);
2626 3360
2627 if (ev_is_active (w)) 3361 if (ev_is_active (w))
2628 { 3362 {
2629 if (w->repeat) 3363 if (w->repeat)
2630 { 3364 {
… …
2643 3377
2644 EV_FREQUENT_CHECK; 3378 EV_FREQUENT_CHECK;
2645} 3379}
2646 3380
2647ev_tstamp 3381ev_tstamp
2648ev_timer_remaining (EV_P_ ev_timer *w) 3382ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2649{ 3383{
2650 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3384 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2651} 3385}
2652 3386
2653#if EV_PERIODIC_ENABLE 3387#if EV_PERIODIC_ENABLE
2654void noinline 3388void noinline
2655ev_periodic_start (EV_P_ ev_periodic *w) 3389ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2656{ 3390{
2657 if (expect_false (ev_is_active (w))) 3391 if (expect_false (ev_is_active (w)))
2658 return; 3392 return;
2659 3393
2660 if (w->reschedule_cb) 3394 if (w->reschedule_cb)
2661 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3395 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2662 else if (w->interval) 3396 else if (w->interval)
2663 { 3397 {
2664 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.));
2665 /* this formula differs from the one in periodic_reify because we do not always round up */ 3399 periodic_recalc (EV_A_ w);
2666 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2667 } 3400 }
2668 else 3401 else
2669 ev_at (w) = w->offset; 3402 ev_at (w) = w->offset;
2670 3403
2671 EV_FREQUENT_CHECK; 3404 EV_FREQUENT_CHECK;
… …
2681 3414
2682 /*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));*/
2683} 3416}
2684 3417
2685void noinline 3418void noinline
2686ev_periodic_stop (EV_P_ ev_periodic *w) 3419ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2687{ 3420{
2688 clear_pending (EV_A_ (W)w); 3421 clear_pending (EV_A_ (W)w);
2689 if (expect_false (!ev_is_active (w))) 3422 if (expect_false (!ev_is_active (w)))
2690 return; 3423 return;
2691 3424
… …
2709 3442
2710 EV_FREQUENT_CHECK; 3443 EV_FREQUENT_CHECK;
2711} 3444}
2712 3445
2713void noinline 3446void noinline
2714ev_periodic_again (EV_P_ ev_periodic *w) 3447ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2715{ 3448{
2716 /* TODO: use adjustheap and recalculation */ 3449 /* TODO: use adjustheap and recalculation */
2717 ev_periodic_stop (EV_A_ w); 3450 ev_periodic_stop (EV_A_ w);
2718 ev_periodic_start (EV_A_ w); 3451 ev_periodic_start (EV_A_ w);
2719} 3452}
… …
2721 3454
2722#ifndef SA_RESTART 3455#ifndef SA_RESTART
2723# define SA_RESTART 0 3456# define SA_RESTART 0
2724#endif 3457#endif
2725 3458
3459#if EV_SIGNAL_ENABLE
3460
2726void noinline 3461void noinline
2727ev_signal_start (EV_P_ ev_signal *w) 3462ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2728{ 3463{
2729 if (expect_false (ev_is_active (w))) 3464 if (expect_false (ev_is_active (w)))
2730 return; 3465 return;
2731 3466
2732 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));
… …
2790 sa.sa_handler = ev_sighandler; 3525 sa.sa_handler = ev_sighandler;
2791 sigfillset (&sa.sa_mask); 3526 sigfillset (&sa.sa_mask);
2792 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 */
2793 sigaction (w->signum, &sa, 0); 3528 sigaction (w->signum, &sa, 0);
2794 3529
3530 if (origflags & EVFLAG_NOSIGMASK)
3531 {
2795 sigemptyset (&sa.sa_mask); 3532 sigemptyset (&sa.sa_mask);
2796 sigaddset (&sa.sa_mask, w->signum); 3533 sigaddset (&sa.sa_mask, w->signum);
2797 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3534 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3535 }
2798#endif 3536#endif
2799 } 3537 }
2800 3538
2801 EV_FREQUENT_CHECK; 3539 EV_FREQUENT_CHECK;
2802} 3540}
2803 3541
2804void noinline 3542void noinline
2805ev_signal_stop (EV_P_ ev_signal *w) 3543ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2806{ 3544{
2807 clear_pending (EV_A_ (W)w); 3545 clear_pending (EV_A_ (W)w);
2808 if (expect_false (!ev_is_active (w))) 3546 if (expect_false (!ev_is_active (w)))
2809 return; 3547 return;
2810 3548
… …
2836 } 3574 }
2837 3575
2838 EV_FREQUENT_CHECK; 3576 EV_FREQUENT_CHECK;
2839} 3577}
2840 3578
3579#endif
3580
3581#if EV_CHILD_ENABLE
3582
2841void 3583void
2842ev_child_start (EV_P_ ev_child *w) 3584ev_child_start (EV_P_ ev_child *w) EV_THROW
2843{ 3585{
2844#if EV_MULTIPLICITY 3586#if EV_MULTIPLICITY
2845 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));
2846#endif 3588#endif
2847 if (expect_false (ev_is_active (w))) 3589 if (expect_false (ev_is_active (w)))
2848 return; 3590 return;
2849 3591
2850 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
2851 3593
2852 ev_start (EV_A_ (W)w, 1); 3594 ev_start (EV_A_ (W)w, 1);
2853 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3595 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2854 3596
2855 EV_FREQUENT_CHECK; 3597 EV_FREQUENT_CHECK;
2856} 3598}
2857 3599
2858void 3600void
2859ev_child_stop (EV_P_ ev_child *w) 3601ev_child_stop (EV_P_ ev_child *w) EV_THROW
2860{ 3602{
2861 clear_pending (EV_A_ (W)w); 3603 clear_pending (EV_A_ (W)w);
2862 if (expect_false (!ev_is_active (w))) 3604 if (expect_false (!ev_is_active (w)))
2863 return; 3605 return;
2864 3606
2865 EV_FREQUENT_CHECK; 3607 EV_FREQUENT_CHECK;
2866 3608
2867 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3609 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2868 ev_stop (EV_A_ (W)w); 3610 ev_stop (EV_A_ (W)w);
2869 3611
2870 EV_FREQUENT_CHECK; 3612 EV_FREQUENT_CHECK;
2871} 3613}
3614
3615#endif
2872 3616
2873#if EV_STAT_ENABLE 3617#if EV_STAT_ENABLE
2874 3618
2875# ifdef _WIN32 3619# ifdef _WIN32
2876# undef lstat 3620# undef lstat
… …
2937 if (!pend || pend == path) 3681 if (!pend || pend == path)
2938 break; 3682 break;
2939 3683
2940 *pend = 0; 3684 *pend = 0;
2941 w->wd = inotify_add_watch (fs_fd, path, mask); 3685 w->wd = inotify_add_watch (fs_fd, path, mask);
2942 } 3686 }
2943 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3687 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2944 } 3688 }
2945 } 3689 }
2946 3690
2947 if (w->wd >= 0) 3691 if (w->wd >= 0)
2948 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);
2949 3693
2950 /* now re-arm timer, if required */ 3694 /* now re-arm timer, if required */
2951 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3695 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2952 ev_timer_again (EV_A_ &w->timer); 3696 ev_timer_again (EV_A_ &w->timer);
2953 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3697 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2961 3705
2962 if (wd < 0) 3706 if (wd < 0)
2963 return; 3707 return;
2964 3708
2965 w->wd = -2; 3709 w->wd = -2;
2966 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3710 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2967 wlist_del (&fs_hash [slot].head, (WL)w); 3711 wlist_del (&fs_hash [slot].head, (WL)w);
2968 3712
2969 /* remove this watcher, if others are watching it, they will rearm */ 3713 /* remove this watcher, if others are watching it, they will rearm */
2970 inotify_rm_watch (fs_fd, wd); 3714 inotify_rm_watch (fs_fd, wd);
2971} 3715}
… …
2973static void noinline 3717static void noinline
2974infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3718infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2975{ 3719{
2976 if (slot < 0) 3720 if (slot < 0)
2977 /* overflow, need to check for all hash slots */ 3721 /* overflow, need to check for all hash slots */
2978 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3722 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2979 infy_wd (EV_A_ slot, wd, ev); 3723 infy_wd (EV_A_ slot, wd, ev);
2980 else 3724 else
2981 { 3725 {
2982 WL w_; 3726 WL w_;
2983 3727
2984 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3728 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2985 { 3729 {
2986 ev_stat *w = (ev_stat *)w_; 3730 ev_stat *w = (ev_stat *)w_;
2987 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 */
2988 3732
2989 if (w->wd == wd || wd == -1) 3733 if (w->wd == wd || wd == -1)
2990 { 3734 {
2991 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3735 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2992 { 3736 {
2993 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);
2994 w->wd = -1; 3738 w->wd = -1;
2995 infy_add (EV_A_ w); /* re-add, no matter what */ 3739 infy_add (EV_A_ w); /* re-add, no matter what */
2996 } 3740 }
2997 3741
2998 stat_timer_cb (EV_A_ &w->timer, 0); 3742 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3014 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3758 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3015 ofs += sizeof (struct inotify_event) + ev->len; 3759 ofs += sizeof (struct inotify_event) + ev->len;
3016 } 3760 }
3017} 3761}
3018 3762
3019inline_size unsigned int
3020ev_linux_version (void)
3021{
3022 struct utsname buf;
3023 unsigned int v;
3024 int i;
3025 char *p = buf.release;
3026
3027 if (uname (&buf))
3028 return 0;
3029
3030 for (i = 3+1; --i; )
3031 {
3032 unsigned int c = 0;
3033
3034 for (;;)
3035 {
3036 if (*p >= '0' && *p <= '9')
3037 c = c * 10 + *p++ - '0';
3038 else
3039 {
3040 p += *p == '.';
3041 break;
3042 }
3043 }
3044
3045 v = (v << 8) | c;
3046 }
3047
3048 return v;
3049}
3050
3051inline_size void 3763inline_size void ecb_cold
3052ev_check_2625 (EV_P) 3764ev_check_2625 (EV_P)
3053{ 3765{
3054 /* kernels < 2.6.25 are borked 3766 /* kernels < 2.6.25 are borked
3055 * 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
3056 */ 3768 */
… …
3061} 3773}
3062 3774
3063inline_size int 3775inline_size int
3064infy_newfd (void) 3776infy_newfd (void)
3065{ 3777{
3066#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3778#if defined IN_CLOEXEC && defined IN_NONBLOCK
3067 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3779 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3068 if (fd >= 0) 3780 if (fd >= 0)
3069 return fd; 3781 return fd;
3070#endif 3782#endif
3071 return inotify_init (); 3783 return inotify_init ();
… …
3112 ev_io_set (&fs_w, fs_fd, EV_READ); 3824 ev_io_set (&fs_w, fs_fd, EV_READ);
3113 ev_io_start (EV_A_ &fs_w); 3825 ev_io_start (EV_A_ &fs_w);
3114 ev_unref (EV_A); 3826 ev_unref (EV_A);
3115 } 3827 }
3116 3828
3117 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3829 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3118 { 3830 {
3119 WL w_ = fs_hash [slot].head; 3831 WL w_ = fs_hash [slot].head;
3120 fs_hash [slot].head = 0; 3832 fs_hash [slot].head = 0;
3121 3833
3122 while (w_) 3834 while (w_)
… …
3146#else 3858#else
3147# define EV_LSTAT(p,b) lstat (p, b) 3859# define EV_LSTAT(p,b) lstat (p, b)
3148#endif 3860#endif
3149 3861
3150void 3862void
3151ev_stat_stat (EV_P_ ev_stat *w) 3863ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3152{ 3864{
3153 if (lstat (w->path, &w->attr) < 0) 3865 if (lstat (w->path, &w->attr) < 0)
3154 w->attr.st_nlink = 0; 3866 w->attr.st_nlink = 0;
3155 else if (!w->attr.st_nlink) 3867 else if (!w->attr.st_nlink)
3156 w->attr.st_nlink = 1; 3868 w->attr.st_nlink = 1;
… …
3195 ev_feed_event (EV_A_ w, EV_STAT); 3907 ev_feed_event (EV_A_ w, EV_STAT);
3196 } 3908 }
3197} 3909}
3198 3910
3199void 3911void
3200ev_stat_start (EV_P_ ev_stat *w) 3912ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3201{ 3913{
3202 if (expect_false (ev_is_active (w))) 3914 if (expect_false (ev_is_active (w)))
3203 return; 3915 return;
3204 3916
3205 ev_stat_stat (EV_A_ w); 3917 ev_stat_stat (EV_A_ w);
… …
3226 3938
3227 EV_FREQUENT_CHECK; 3939 EV_FREQUENT_CHECK;
3228} 3940}
3229 3941
3230void 3942void
3231ev_stat_stop (EV_P_ ev_stat *w) 3943ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3232{ 3944{
3233 clear_pending (EV_A_ (W)w); 3945 clear_pending (EV_A_ (W)w);
3234 if (expect_false (!ev_is_active (w))) 3946 if (expect_false (!ev_is_active (w)))
3235 return; 3947 return;
3236 3948
… …
3252} 3964}
3253#endif 3965#endif
3254 3966
3255#if EV_IDLE_ENABLE 3967#if EV_IDLE_ENABLE
3256void 3968void
3257ev_idle_start (EV_P_ ev_idle *w) 3969ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3258{ 3970{
3259 if (expect_false (ev_is_active (w))) 3971 if (expect_false (ev_is_active (w)))
3260 return; 3972 return;
3261 3973
3262 pri_adjust (EV_A_ (W)w); 3974 pri_adjust (EV_A_ (W)w);
… …
3275 3987
3276 EV_FREQUENT_CHECK; 3988 EV_FREQUENT_CHECK;
3277} 3989}
3278 3990
3279void 3991void
3280ev_idle_stop (EV_P_ ev_idle *w) 3992ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3281{ 3993{
3282 clear_pending (EV_A_ (W)w); 3994 clear_pending (EV_A_ (W)w);
3283 if (expect_false (!ev_is_active (w))) 3995 if (expect_false (!ev_is_active (w)))
3284 return; 3996 return;
3285 3997
… …
3297 4009
3298 EV_FREQUENT_CHECK; 4010 EV_FREQUENT_CHECK;
3299} 4011}
3300#endif 4012#endif
3301 4013
4014#if EV_PREPARE_ENABLE
3302void 4015void
3303ev_prepare_start (EV_P_ ev_prepare *w) 4016ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3304{ 4017{
3305 if (expect_false (ev_is_active (w))) 4018 if (expect_false (ev_is_active (w)))
3306 return; 4019 return;
3307 4020
3308 EV_FREQUENT_CHECK; 4021 EV_FREQUENT_CHECK;
… …
3313 4026
3314 EV_FREQUENT_CHECK; 4027 EV_FREQUENT_CHECK;
3315} 4028}
3316 4029
3317void 4030void
3318ev_prepare_stop (EV_P_ ev_prepare *w) 4031ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3319{ 4032{
3320 clear_pending (EV_A_ (W)w); 4033 clear_pending (EV_A_ (W)w);
3321 if (expect_false (!ev_is_active (w))) 4034 if (expect_false (!ev_is_active (w)))
3322 return; 4035 return;
3323 4036
… …
3332 4045
3333 ev_stop (EV_A_ (W)w); 4046 ev_stop (EV_A_ (W)w);
3334 4047
3335 EV_FREQUENT_CHECK; 4048 EV_FREQUENT_CHECK;
3336} 4049}
4050#endif
3337 4051
4052#if EV_CHECK_ENABLE
3338void 4053void
3339ev_check_start (EV_P_ ev_check *w) 4054ev_check_start (EV_P_ ev_check *w) EV_THROW
3340{ 4055{
3341 if (expect_false (ev_is_active (w))) 4056 if (expect_false (ev_is_active (w)))
3342 return; 4057 return;
3343 4058
3344 EV_FREQUENT_CHECK; 4059 EV_FREQUENT_CHECK;
… …
3349 4064
3350 EV_FREQUENT_CHECK; 4065 EV_FREQUENT_CHECK;
3351} 4066}
3352 4067
3353void 4068void
3354ev_check_stop (EV_P_ ev_check *w) 4069ev_check_stop (EV_P_ ev_check *w) EV_THROW
3355{ 4070{
3356 clear_pending (EV_A_ (W)w); 4071 clear_pending (EV_A_ (W)w);
3357 if (expect_false (!ev_is_active (w))) 4072 if (expect_false (!ev_is_active (w)))
3358 return; 4073 return;
3359 4074
… …
3368 4083
3369 ev_stop (EV_A_ (W)w); 4084 ev_stop (EV_A_ (W)w);
3370 4085
3371 EV_FREQUENT_CHECK; 4086 EV_FREQUENT_CHECK;
3372} 4087}
4088#endif
3373 4089
3374#if EV_EMBED_ENABLE 4090#if EV_EMBED_ENABLE
3375void noinline 4091void noinline
3376ev_embed_sweep (EV_P_ ev_embed *w) 4092ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3377{ 4093{
3378 ev_loop (w->other, EVLOOP_NONBLOCK); 4094 ev_run (w->other, EVRUN_NOWAIT);
3379} 4095}
3380 4096
3381static void 4097static void
3382embed_io_cb (EV_P_ ev_io *io, int revents) 4098embed_io_cb (EV_P_ ev_io *io, int revents)
3383{ 4099{
3384 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4100 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3385 4101
3386 if (ev_cb (w)) 4102 if (ev_cb (w))
3387 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4103 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3388 else 4104 else
3389 ev_loop (w->other, EVLOOP_NONBLOCK); 4105 ev_run (w->other, EVRUN_NOWAIT);
3390} 4106}
3391 4107
3392static void 4108static void
3393embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4109embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3394{ 4110{
… …
3398 EV_P = w->other; 4114 EV_P = w->other;
3399 4115
3400 while (fdchangecnt) 4116 while (fdchangecnt)
3401 { 4117 {
3402 fd_reify (EV_A); 4118 fd_reify (EV_A);
3403 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4119 ev_run (EV_A_ EVRUN_NOWAIT);
3404 } 4120 }
3405 } 4121 }
3406} 4122}
3407 4123
3408static void 4124static void
… …
3414 4130
3415 { 4131 {
3416 EV_P = w->other; 4132 EV_P = w->other;
3417 4133
3418 ev_loop_fork (EV_A); 4134 ev_loop_fork (EV_A);
3419 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4135 ev_run (EV_A_ EVRUN_NOWAIT);
3420 } 4136 }
3421 4137
3422 ev_embed_start (EV_A_ w); 4138 ev_embed_start (EV_A_ w);
3423} 4139}
3424 4140
… …
3429 ev_idle_stop (EV_A_ idle); 4145 ev_idle_stop (EV_A_ idle);
3430} 4146}
3431#endif 4147#endif
3432 4148
3433void 4149void
3434ev_embed_start (EV_P_ ev_embed *w) 4150ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3435{ 4151{
3436 if (expect_false (ev_is_active (w))) 4152 if (expect_false (ev_is_active (w)))
3437 return; 4153 return;
3438 4154
3439 { 4155 {
… …
3460 4176
3461 EV_FREQUENT_CHECK; 4177 EV_FREQUENT_CHECK;
3462} 4178}
3463 4179
3464void 4180void
3465ev_embed_stop (EV_P_ ev_embed *w) 4181ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3466{ 4182{
3467 clear_pending (EV_A_ (W)w); 4183 clear_pending (EV_A_ (W)w);
3468 if (expect_false (!ev_is_active (w))) 4184 if (expect_false (!ev_is_active (w)))
3469 return; 4185 return;
3470 4186
… …
3480} 4196}
3481#endif 4197#endif
3482 4198
3483#if EV_FORK_ENABLE 4199#if EV_FORK_ENABLE
3484void 4200void
3485ev_fork_start (EV_P_ ev_fork *w) 4201ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3486{ 4202{
3487 if (expect_false (ev_is_active (w))) 4203 if (expect_false (ev_is_active (w)))
3488 return; 4204 return;
3489 4205
3490 EV_FREQUENT_CHECK; 4206 EV_FREQUENT_CHECK;
… …
3495 4211
3496 EV_FREQUENT_CHECK; 4212 EV_FREQUENT_CHECK;
3497} 4213}
3498 4214
3499void 4215void
3500ev_fork_stop (EV_P_ ev_fork *w) 4216ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3501{ 4217{
3502 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
3503 if (expect_false (!ev_is_active (w))) 4219 if (expect_false (!ev_is_active (w)))
3504 return; 4220 return;
3505 4221
… …
3516 4232
3517 EV_FREQUENT_CHECK; 4233 EV_FREQUENT_CHECK;
3518} 4234}
3519#endif 4235#endif
3520 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
3521#if EV_ASYNC_ENABLE 4278#if EV_ASYNC_ENABLE
3522void 4279void
3523ev_async_start (EV_P_ ev_async *w) 4280ev_async_start (EV_P_ ev_async *w) EV_THROW
3524{ 4281{
3525 if (expect_false (ev_is_active (w))) 4282 if (expect_false (ev_is_active (w)))
3526 return; 4283 return;
4284
4285 w->sent = 0;
3527 4286
3528 evpipe_init (EV_A); 4287 evpipe_init (EV_A);
3529 4288
3530 EV_FREQUENT_CHECK; 4289 EV_FREQUENT_CHECK;
3531 4290
… …
3535 4294
3536 EV_FREQUENT_CHECK; 4295 EV_FREQUENT_CHECK;
3537} 4296}
3538 4297
3539void 4298void
3540ev_async_stop (EV_P_ ev_async *w) 4299ev_async_stop (EV_P_ ev_async *w) EV_THROW
3541{ 4300{
3542 clear_pending (EV_A_ (W)w); 4301 clear_pending (EV_A_ (W)w);
3543 if (expect_false (!ev_is_active (w))) 4302 if (expect_false (!ev_is_active (w)))
3544 return; 4303 return;
3545 4304
… …
3556 4315
3557 EV_FREQUENT_CHECK; 4316 EV_FREQUENT_CHECK;
3558} 4317}
3559 4318
3560void 4319void
3561ev_async_send (EV_P_ ev_async *w) 4320ev_async_send (EV_P_ ev_async *w) EV_THROW
3562{ 4321{
3563 w->sent = 1; 4322 w->sent = 1;
3564 evpipe_write (EV_A_ &async_pending); 4323 evpipe_write (EV_A_ &async_pending);
3565} 4324}
3566#endif 4325#endif
… …
3603 4362
3604 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));
3605} 4364}
3606 4365
3607void 4366void
3608ev_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
3609{ 4368{
3610 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));
3611 4370
3612 if (expect_false (!once)) 4371 if (expect_false (!once))
3613 { 4372 {
3614 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4373 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3615 return; 4374 return;
3616 } 4375 }
3617 4376
3618 once->cb = cb; 4377 once->cb = cb;
3619 once->arg = arg; 4378 once->arg = arg;
… …
3634} 4393}
3635 4394
3636/*****************************************************************************/ 4395/*****************************************************************************/
3637 4396
3638#if EV_WALK_ENABLE 4397#if EV_WALK_ENABLE
3639void 4398void ecb_cold
3640ev_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
3641{ 4400{
3642 int i, j; 4401 int i, j;
3643 ev_watcher_list *wl, *wn; 4402 ev_watcher_list *wl, *wn;
3644 4403
3645 if (types & (EV_IO | EV_EMBED)) 4404 if (types & (EV_IO | EV_EMBED))
… …
3688 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4447 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3689#endif 4448#endif
3690 4449
3691#if EV_IDLE_ENABLE 4450#if EV_IDLE_ENABLE
3692 if (types & EV_IDLE) 4451 if (types & EV_IDLE)
3693 for (j = NUMPRI; i--; ) 4452 for (j = NUMPRI; j--; )
3694 for (i = idlecnt [j]; i--; ) 4453 for (i = idlecnt [j]; i--; )
3695 cb (EV_A_ EV_IDLE, idles [j][i]); 4454 cb (EV_A_ EV_IDLE, idles [j][i]);
3696#endif 4455#endif
3697 4456
3698#if EV_FORK_ENABLE 4457#if EV_FORK_ENABLE
… …
3706 if (types & EV_ASYNC) 4465 if (types & EV_ASYNC)
3707 for (i = asynccnt; i--; ) 4466 for (i = asynccnt; i--; )
3708 cb (EV_A_ EV_ASYNC, asyncs [i]); 4467 cb (EV_A_ EV_ASYNC, asyncs [i]);
3709#endif 4468#endif
3710 4469
4470#if EV_PREPARE_ENABLE
3711 if (types & EV_PREPARE) 4471 if (types & EV_PREPARE)
3712 for (i = preparecnt; i--; ) 4472 for (i = preparecnt; i--; )
3713#if EV_EMBED_ENABLE 4473# if EV_EMBED_ENABLE
3714 if (ev_cb (prepares [i]) != embed_prepare_cb) 4474 if (ev_cb (prepares [i]) != embed_prepare_cb)
3715#endif 4475# endif
3716 cb (EV_A_ EV_PREPARE, prepares [i]); 4476 cb (EV_A_ EV_PREPARE, prepares [i]);
4477#endif
3717 4478
4479#if EV_CHECK_ENABLE
3718 if (types & EV_CHECK) 4480 if (types & EV_CHECK)
3719 for (i = checkcnt; i--; ) 4481 for (i = checkcnt; i--; )
3720 cb (EV_A_ EV_CHECK, checks [i]); 4482 cb (EV_A_ EV_CHECK, checks [i]);
4483#endif
3721 4484
4485#if EV_SIGNAL_ENABLE
3722 if (types & EV_SIGNAL) 4486 if (types & EV_SIGNAL)
3723 for (i = 0; i < EV_NSIG - 1; ++i) 4487 for (i = 0; i < EV_NSIG - 1; ++i)
3724 for (wl = signals [i].head; wl; ) 4488 for (wl = signals [i].head; wl; )
3725 { 4489 {
3726 wn = wl->next; 4490 wn = wl->next;
3727 cb (EV_A_ EV_SIGNAL, wl); 4491 cb (EV_A_ EV_SIGNAL, wl);
3728 wl = wn; 4492 wl = wn;
3729 } 4493 }
4494#endif
3730 4495
4496#if EV_CHILD_ENABLE
3731 if (types & EV_CHILD) 4497 if (types & EV_CHILD)
3732 for (i = EV_PID_HASHSIZE; i--; ) 4498 for (i = (EV_PID_HASHSIZE); i--; )
3733 for (wl = childs [i]; wl; ) 4499 for (wl = childs [i]; wl; )
3734 { 4500 {
3735 wn = wl->next; 4501 wn = wl->next;
3736 cb (EV_A_ EV_CHILD, wl); 4502 cb (EV_A_ EV_CHILD, wl);
3737 wl = wn; 4503 wl = wn;
3738 } 4504 }
4505#endif
3739/* EV_STAT 0x00001000 /* stat data changed */ 4506/* EV_STAT 0x00001000 /* stat data changed */
3740/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4507/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3741} 4508}
3742#endif 4509#endif
3743 4510
3744#if EV_MULTIPLICITY 4511#if EV_MULTIPLICITY
3745 #include "ev_wrap.h" 4512 #include "ev_wrap.h"
3746#endif 4513#endif
3747 4514
3748#ifdef __cplusplus
3749}
3750#endif
3751

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