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Comparing libev/ev.c (file contents):
Revision 1.332 by root, Tue Mar 9 08:58:17 2010 UTC vs.
Revision 1.441 by root, Wed May 30 15:45:40 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/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
465#if __GNUC__ >= 4 519 #if __GNUC__
466# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
467# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
526 #ifdef _WIN64
527 #define ECB_PTRSIZE 8
528 typedef uint64_t uintptr_t;
529 typedef int64_t intptr_t;
530 #else
531 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t;
534 #endif
535 typedef intptr_t ptrdiff_t;
468#else 536#else
469# define expect(expr,value) (expr) 537 #include <inttypes.h>
470# define noinline 538 #if UINTMAX_MAX > 0xffffffffU
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 539 #define ECB_PTRSIZE 8
472# define inline 540 #else
541 #define ECB_PTRSIZE 4
542 #endif
473# endif 543#endif
544
545/* many compilers define _GNUC_ to some versions but then only implement
546 * what their idiot authors think are the "more important" extensions,
547 * causing enormous grief in return for some better fake benchmark numbers.
548 * or so.
549 * we try to detect these and simply assume they are not gcc - if they have
550 * an issue with that they should have done it right in the first place.
551 */
552#ifndef ECB_GCC_VERSION
553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
554 #define ECB_GCC_VERSION(major,minor) 0
555 #else
556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
474#endif 557 #endif
558#endif
475 559
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
561#define ECB_C99 (__STDC_VERSION__ >= 199901L)
562#define ECB_C11 (__STDC_VERSION__ >= 201112L)
563#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP98 (__cplusplus >= 199711L)
565#define ECB_CPP11 (__cplusplus >= 201103L)
566
567/*****************************************************************************/
568
569/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
570/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
571
572#if ECB_NO_THREADS
573 #define ECB_NO_SMP 1
574#endif
575
576#if ECB_NO_SMP
577 #define ECB_MEMORY_FENCE do { } while (0)
578#endif
579
580#ifndef ECB_MEMORY_FENCE
581 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
582 #if __i386 || __i386__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
584 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
585 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
586 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
587 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
588 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
589 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
590 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
591 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
592 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
593 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
594 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
595 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
596 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
597 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
598 #elif __sparc || __sparc__
599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
601 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
602 #elif defined __s390__ || defined __s390x__
603 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
604 #elif defined __mips__
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
606 #elif defined __alpha__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
608 #elif defined __hppa__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
610 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
611 #elif defined __ia64__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
613 #endif
614 #endif
615#endif
616
617#ifndef ECB_MEMORY_FENCE
618 #if ECB_GCC_VERSION(4,7)
619 /* see comment below about the C11 memory model. in short - avoid */
620 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
621 #elif defined __clang && __has_feature (cxx_atomic)
622 /* see above */
623 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
624 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
625 #define ECB_MEMORY_FENCE __sync_synchronize ()
626 #elif _MSC_VER >= 1400 /* VC++ 2005 */
627 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
628 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
629 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
630 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
631 #elif defined _WIN32
632 #include <WinNT.h>
633 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
634 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
635 #include <mbarrier.h>
636 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
637 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
638 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
639 #elif __xlC__
640 #define ECB_MEMORY_FENCE __sync ()
641 #endif
642#endif
643
644#ifndef ECB_MEMORY_FENCE
645 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
646 /* we assume that these memory fences work on all variables/all memory accesses, */
647 /* not just C11 atomics and atomic accesses */
648 #include <stdatomic.h>
649 /* unfortunately, the C11 memory model seems to be very limited, and unable to express */
650 /* simple barrier semantics. That means we need to take out thor's hammer. */
651 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
652 #endif
653#endif
654
655#ifndef ECB_MEMORY_FENCE
656 #if !ECB_AVOID_PTHREADS
657 /*
658 * if you get undefined symbol references to pthread_mutex_lock,
659 * or failure to find pthread.h, then you should implement
660 * the ECB_MEMORY_FENCE operations for your cpu/compiler
661 * OR provide pthread.h and link against the posix thread library
662 * of your system.
663 */
664 #include <pthread.h>
665 #define ECB_NEEDS_PTHREADS 1
666 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
667
668 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
669 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
670 #endif
671#endif
672
673#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
674 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
675#endif
676
677#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
678 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
679#endif
680
681/*****************************************************************************/
682
683#if __cplusplus
684 #define ecb_inline static inline
685#elif ECB_GCC_VERSION(2,5)
686 #define ecb_inline static __inline__
687#elif ECB_C99
688 #define ecb_inline static inline
689#else
690 #define ecb_inline static
691#endif
692
693#if ECB_GCC_VERSION(3,3)
694 #define ecb_restrict __restrict__
695#elif ECB_C99
696 #define ecb_restrict restrict
697#else
698 #define ecb_restrict
699#endif
700
701typedef int ecb_bool;
702
703#define ECB_CONCAT_(a, b) a ## b
704#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
705#define ECB_STRINGIFY_(a) # a
706#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
707
708#define ecb_function_ ecb_inline
709
710#if ECB_GCC_VERSION(3,1)
711 #define ecb_attribute(attrlist) __attribute__(attrlist)
712 #define ecb_is_constant(expr) __builtin_constant_p (expr)
713 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
714 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
715#else
716 #define ecb_attribute(attrlist)
717 #define ecb_is_constant(expr) 0
718 #define ecb_expect(expr,value) (expr)
719 #define ecb_prefetch(addr,rw,locality)
720#endif
721
722/* no emulation for ecb_decltype */
723#if ECB_GCC_VERSION(4,5)
724 #define ecb_decltype(x) __decltype(x)
725#elif ECB_GCC_VERSION(3,0)
726 #define ecb_decltype(x) __typeof(x)
727#endif
728
729#define ecb_noinline ecb_attribute ((__noinline__))
730#define ecb_unused ecb_attribute ((__unused__))
731#define ecb_const ecb_attribute ((__const__))
732#define ecb_pure ecb_attribute ((__pure__))
733
734#if ECB_C11
735 #define ecb_noreturn _Noreturn
736#else
737 #define ecb_noreturn ecb_attribute ((__noreturn__))
738#endif
739
740#if ECB_GCC_VERSION(4,3)
741 #define ecb_artificial ecb_attribute ((__artificial__))
742 #define ecb_hot ecb_attribute ((__hot__))
743 #define ecb_cold ecb_attribute ((__cold__))
744#else
745 #define ecb_artificial
746 #define ecb_hot
747 #define ecb_cold
748#endif
749
750/* put around conditional expressions if you are very sure that the */
751/* expression is mostly true or mostly false. note that these return */
752/* booleans, not the expression. */
476#define expect_false(expr) expect ((expr) != 0, 0) 753#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 754#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
755/* for compatibility to the rest of the world */
756#define ecb_likely(expr) ecb_expect_true (expr)
757#define ecb_unlikely(expr) ecb_expect_false (expr)
758
759/* count trailing zero bits and count # of one bits */
760#if ECB_GCC_VERSION(3,4)
761 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
762 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
763 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
764 #define ecb_ctz32(x) __builtin_ctz (x)
765 #define ecb_ctz64(x) __builtin_ctzll (x)
766 #define ecb_popcount32(x) __builtin_popcount (x)
767 /* no popcountll */
768#else
769 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
770 ecb_function_ int
771 ecb_ctz32 (uint32_t x)
772 {
773 int r = 0;
774
775 x &= ~x + 1; /* this isolates the lowest bit */
776
777#if ECB_branchless_on_i386
778 r += !!(x & 0xaaaaaaaa) << 0;
779 r += !!(x & 0xcccccccc) << 1;
780 r += !!(x & 0xf0f0f0f0) << 2;
781 r += !!(x & 0xff00ff00) << 3;
782 r += !!(x & 0xffff0000) << 4;
783#else
784 if (x & 0xaaaaaaaa) r += 1;
785 if (x & 0xcccccccc) r += 2;
786 if (x & 0xf0f0f0f0) r += 4;
787 if (x & 0xff00ff00) r += 8;
788 if (x & 0xffff0000) r += 16;
789#endif
790
791 return r;
792 }
793
794 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
795 ecb_function_ int
796 ecb_ctz64 (uint64_t x)
797 {
798 int shift = x & 0xffffffffU ? 0 : 32;
799 return ecb_ctz32 (x >> shift) + shift;
800 }
801
802 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
803 ecb_function_ int
804 ecb_popcount32 (uint32_t x)
805 {
806 x -= (x >> 1) & 0x55555555;
807 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
808 x = ((x >> 4) + x) & 0x0f0f0f0f;
809 x *= 0x01010101;
810
811 return x >> 24;
812 }
813
814 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
815 ecb_function_ int ecb_ld32 (uint32_t x)
816 {
817 int r = 0;
818
819 if (x >> 16) { x >>= 16; r += 16; }
820 if (x >> 8) { x >>= 8; r += 8; }
821 if (x >> 4) { x >>= 4; r += 4; }
822 if (x >> 2) { x >>= 2; r += 2; }
823 if (x >> 1) { r += 1; }
824
825 return r;
826 }
827
828 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
829 ecb_function_ int ecb_ld64 (uint64_t x)
830 {
831 int r = 0;
832
833 if (x >> 32) { x >>= 32; r += 32; }
834
835 return r + ecb_ld32 (x);
836 }
837#endif
838
839ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
840ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
841ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
842ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
843
844ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
845ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
846{
847 return ( (x * 0x0802U & 0x22110U)
848 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
849}
850
851ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
852ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
853{
854 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
855 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
856 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
857 x = ( x >> 8 ) | ( x << 8);
858
859 return x;
860}
861
862ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
863ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
864{
865 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
866 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
867 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
868 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
869 x = ( x >> 16 ) | ( x << 16);
870
871 return x;
872}
873
874/* popcount64 is only available on 64 bit cpus as gcc builtin */
875/* so for this version we are lazy */
876ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
877ecb_function_ int
878ecb_popcount64 (uint64_t x)
879{
880 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
881}
882
883ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
884ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
885ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
886ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
887ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
888ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
889ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
890ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
891
892ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
893ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
894ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
895ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
896ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
897ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
898ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
899ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
900
901#if ECB_GCC_VERSION(4,3)
902 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
903 #define ecb_bswap32(x) __builtin_bswap32 (x)
904 #define ecb_bswap64(x) __builtin_bswap64 (x)
905#else
906 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
907 ecb_function_ uint16_t
908 ecb_bswap16 (uint16_t x)
909 {
910 return ecb_rotl16 (x, 8);
911 }
912
913 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
914 ecb_function_ uint32_t
915 ecb_bswap32 (uint32_t x)
916 {
917 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
918 }
919
920 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
921 ecb_function_ uint64_t
922 ecb_bswap64 (uint64_t x)
923 {
924 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
925 }
926#endif
927
928#if ECB_GCC_VERSION(4,5)
929 #define ecb_unreachable() __builtin_unreachable ()
930#else
931 /* this seems to work fine, but gcc always emits a warning for it :/ */
932 ecb_inline void ecb_unreachable (void) ecb_noreturn;
933 ecb_inline void ecb_unreachable (void) { }
934#endif
935
936/* try to tell the compiler that some condition is definitely true */
937#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
938
939ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
940ecb_inline unsigned char
941ecb_byteorder_helper (void)
942{
943 const uint32_t u = 0x11223344;
944 return *(unsigned char *)&u;
945}
946
947ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
948ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
949ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
950ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
951
952#if ECB_GCC_VERSION(3,0) || ECB_C99
953 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
954#else
955 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
956#endif
957
958#if __cplusplus
959 template<typename T>
960 static inline T ecb_div_rd (T val, T div)
961 {
962 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
963 }
964 template<typename T>
965 static inline T ecb_div_ru (T val, T div)
966 {
967 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
968 }
969#else
970 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
971 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
972#endif
973
974#if ecb_cplusplus_does_not_suck
975 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
976 template<typename T, int N>
977 static inline int ecb_array_length (const T (&arr)[N])
978 {
979 return N;
980 }
981#else
982 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
983#endif
984
985#endif
986
987/* ECB.H END */
988
989#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
990/* if your architecture doesn't need memory fences, e.g. because it is
991 * single-cpu/core, or if you use libev in a project that doesn't use libev
992 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
993 * libev, in which cases the memory fences become nops.
994 * alternatively, you can remove this #error and link against libpthread,
995 * which will then provide the memory fences.
996 */
997# error "memory fences not defined for your architecture, please report"
998#endif
999
1000#ifndef ECB_MEMORY_FENCE
1001# define ECB_MEMORY_FENCE do { } while (0)
1002# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1003# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1004#endif
1005
1006#define expect_false(cond) ecb_expect_false (cond)
1007#define expect_true(cond) ecb_expect_true (cond)
1008#define noinline ecb_noinline
1009
478#define inline_size static inline 1010#define inline_size ecb_inline
479 1011
480#if EV_MINIMAL 1012#if EV_FEATURE_CODE
1013# define inline_speed ecb_inline
1014#else
481# define inline_speed static noinline 1015# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 1016#endif
485 1017
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1018#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 1019
488#if EV_MINPRI == EV_MAXPRI 1020#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 1033#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 1034#define ev_at(w) ((WT)(w))->at
503 1035
504#if EV_USE_REALTIME 1036#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1037/* 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 */ 1038/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1039static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 1040#endif
509 1041
510#if EV_USE_MONOTONIC 1042#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1043static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 1057# include "ev_win32.c"
526#endif 1058#endif
527 1059
528/*****************************************************************************/ 1060/*****************************************************************************/
529 1061
1062/* define a suitable floor function (only used by periodics atm) */
1063
1064#if EV_USE_FLOOR
1065# include <math.h>
1066# define ev_floor(v) floor (v)
1067#else
1068
1069#include <float.h>
1070
1071/* a floor() replacement function, should be independent of ev_tstamp type */
1072static ev_tstamp noinline
1073ev_floor (ev_tstamp v)
1074{
1075 /* the choice of shift factor is not terribly important */
1076#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1077 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1078#else
1079 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1080#endif
1081
1082 /* argument too large for an unsigned long? */
1083 if (expect_false (v >= shift))
1084 {
1085 ev_tstamp f;
1086
1087 if (v == v - 1.)
1088 return v; /* very large number */
1089
1090 f = shift * ev_floor (v * (1. / shift));
1091 return f + ev_floor (v - f);
1092 }
1093
1094 /* special treatment for negative args? */
1095 if (expect_false (v < 0.))
1096 {
1097 ev_tstamp f = -ev_floor (-v);
1098
1099 return f - (f == v ? 0 : 1);
1100 }
1101
1102 /* fits into an unsigned long */
1103 return (unsigned long)v;
1104}
1105
1106#endif
1107
1108/*****************************************************************************/
1109
1110#ifdef __linux
1111# include <sys/utsname.h>
1112#endif
1113
1114static unsigned int noinline ecb_cold
1115ev_linux_version (void)
1116{
1117#ifdef __linux
1118 unsigned int v = 0;
1119 struct utsname buf;
1120 int i;
1121 char *p = buf.release;
1122
1123 if (uname (&buf))
1124 return 0;
1125
1126 for (i = 3+1; --i; )
1127 {
1128 unsigned int c = 0;
1129
1130 for (;;)
1131 {
1132 if (*p >= '0' && *p <= '9')
1133 c = c * 10 + *p++ - '0';
1134 else
1135 {
1136 p += *p == '.';
1137 break;
1138 }
1139 }
1140
1141 v = (v << 8) | c;
1142 }
1143
1144 return v;
1145#else
1146 return 0;
1147#endif
1148}
1149
1150/*****************************************************************************/
1151
530#if EV_AVOID_STDIO 1152#if EV_AVOID_STDIO
531static void noinline 1153static void noinline ecb_cold
532ev_printerr (const char *msg) 1154ev_printerr (const char *msg)
533{ 1155{
534 write (STDERR_FILENO, msg, strlen (msg)); 1156 write (STDERR_FILENO, msg, strlen (msg));
535} 1157}
536#endif 1158#endif
537 1159
538static void (*syserr_cb)(const char *msg); 1160static void (*syserr_cb)(const char *msg) EV_THROW;
539 1161
540void 1162void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 1163ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
542{ 1164{
543 syserr_cb = cb; 1165 syserr_cb = cb;
544} 1166}
545 1167
546static void noinline 1168static void noinline ecb_cold
547ev_syserr (const char *msg) 1169ev_syserr (const char *msg)
548{ 1170{
549 if (!msg) 1171 if (!msg)
550 msg = "(libev) system error"; 1172 msg = "(libev) system error";
551 1173
552 if (syserr_cb) 1174 if (syserr_cb)
553 syserr_cb (msg); 1175 syserr_cb (msg);
554 else 1176 else
555 { 1177 {
556#if EV_AVOID_STDIO 1178#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 1179 ev_printerr (msg);
560 ev_printerr (": "); 1180 ev_printerr (": ");
561 ev_printerr (err); 1181 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 1182 ev_printerr ("\n");
563#else 1183#else
564 perror (msg); 1184 perror (msg);
565#endif 1185#endif
566 abort (); 1186 abort ();
567 } 1187 }
568} 1188}
569 1189
570static void * 1190static void *
571ev_realloc_emul (void *ptr, long size) 1191ev_realloc_emul (void *ptr, long size) EV_THROW
572{ 1192{
1193#if __GLIBC__
1194 return realloc (ptr, size);
1195#else
573 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
574 * implement realloc (x, 0) (as required by both ansi c-98 and 1197 * implement realloc (x, 0) (as required by both ansi c-89 and
575 * the single unix specification, so work around them here. 1198 * the single unix specification, so work around them here.
576 */ 1199 */
1200
577 if (size) 1201 if (size)
578 return realloc (ptr, size); 1202 return realloc (ptr, size);
579 1203
580 free (ptr); 1204 free (ptr);
581 return 0; 1205 return 0;
1206#endif
582} 1207}
583 1208
584static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1209static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
585 1210
586void 1211void ecb_cold
587ev_set_allocator (void *(*cb)(void *ptr, long size)) 1212ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
588{ 1213{
589 alloc = cb; 1214 alloc = cb;
590} 1215}
591 1216
592inline_speed void * 1217inline_speed void *
… …
595 ptr = alloc (ptr, size); 1220 ptr = alloc (ptr, size);
596 1221
597 if (!ptr && size) 1222 if (!ptr && size)
598 { 1223 {
599#if EV_AVOID_STDIO 1224#if EV_AVOID_STDIO
600 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1225 ev_printerr ("(libev) memory allocation failed, aborting.\n");
601#else 1226#else
602 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1227 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
603#endif 1228#endif
604 abort (); 1229 abort ();
605 } 1230 }
606 1231
607 return ptr; 1232 return ptr;
… …
624 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1249 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
625 unsigned char unused; 1250 unsigned char unused;
626#if EV_USE_EPOLL 1251#if EV_USE_EPOLL
627 unsigned int egen; /* generation counter to counter epoll bugs */ 1252 unsigned int egen; /* generation counter to counter epoll bugs */
628#endif 1253#endif
629#if EV_SELECT_IS_WINSOCKET 1254#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
630 SOCKET handle; 1255 SOCKET handle;
1256#endif
1257#if EV_USE_IOCP
1258 OVERLAPPED or, ow;
631#endif 1259#endif
632} ANFD; 1260} ANFD;
633 1261
634/* stores the pending event set for a given watcher */ 1262/* stores the pending event set for a given watcher */
635typedef struct 1263typedef struct
… …
677 #undef VAR 1305 #undef VAR
678 }; 1306 };
679 #include "ev_wrap.h" 1307 #include "ev_wrap.h"
680 1308
681 static struct ev_loop default_loop_struct; 1309 static struct ev_loop default_loop_struct;
682 struct ev_loop *ev_default_loop_ptr; 1310 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
683 1311
684#else 1312#else
685 1313
686 ev_tstamp ev_rt_now; 1314 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
687 #define VAR(name,decl) static decl; 1315 #define VAR(name,decl) static decl;
688 #include "ev_vars.h" 1316 #include "ev_vars.h"
689 #undef VAR 1317 #undef VAR
690 1318
691 static int ev_default_loop_ptr; 1319 static int ev_default_loop_ptr;
692 1320
693#endif 1321#endif
694 1322
695#if EV_MINIMAL < 2 1323#if EV_FEATURE_API
696# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1324# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
697# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1325# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
698# define EV_INVOKE_PENDING invoke_cb (EV_A) 1326# define EV_INVOKE_PENDING invoke_cb (EV_A)
699#else 1327#else
700# define EV_RELEASE_CB (void)0 1328# define EV_RELEASE_CB (void)0
701# define EV_ACQUIRE_CB (void)0 1329# define EV_ACQUIRE_CB (void)0
702# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1330# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
703#endif 1331#endif
704 1332
705#define EVUNLOOP_RECURSE 0x80 1333#define EVBREAK_RECURSE 0x80
706 1334
707/*****************************************************************************/ 1335/*****************************************************************************/
708 1336
709#ifndef EV_HAVE_EV_TIME 1337#ifndef EV_HAVE_EV_TIME
710ev_tstamp 1338ev_tstamp
711ev_time (void) 1339ev_time (void) EV_THROW
712{ 1340{
713#if EV_USE_REALTIME 1341#if EV_USE_REALTIME
714 if (expect_true (have_realtime)) 1342 if (expect_true (have_realtime))
715 { 1343 {
716 struct timespec ts; 1344 struct timespec ts;
… …
740 return ev_time (); 1368 return ev_time ();
741} 1369}
742 1370
743#if EV_MULTIPLICITY 1371#if EV_MULTIPLICITY
744ev_tstamp 1372ev_tstamp
745ev_now (EV_P) 1373ev_now (EV_P) EV_THROW
746{ 1374{
747 return ev_rt_now; 1375 return ev_rt_now;
748} 1376}
749#endif 1377#endif
750 1378
751void 1379void
752ev_sleep (ev_tstamp delay) 1380ev_sleep (ev_tstamp delay) EV_THROW
753{ 1381{
754 if (delay > 0.) 1382 if (delay > 0.)
755 { 1383 {
756#if EV_USE_NANOSLEEP 1384#if EV_USE_NANOSLEEP
757 struct timespec ts; 1385 struct timespec ts;
758 1386
759 ts.tv_sec = (time_t)delay; 1387 EV_TS_SET (ts, delay);
760 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
761
762 nanosleep (&ts, 0); 1388 nanosleep (&ts, 0);
763#elif defined(_WIN32) 1389#elif defined _WIN32
764 Sleep ((unsigned long)(delay * 1e3)); 1390 Sleep ((unsigned long)(delay * 1e3));
765#else 1391#else
766 struct timeval tv; 1392 struct timeval tv;
767 1393
768 tv.tv_sec = (time_t)delay;
769 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
770
771 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1394 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
772 /* something not guaranteed by newer posix versions, but guaranteed */ 1395 /* something not guaranteed by newer posix versions, but guaranteed */
773 /* by older ones */ 1396 /* by older ones */
1397 EV_TV_SET (tv, delay);
774 select (0, 0, 0, 0, &tv); 1398 select (0, 0, 0, 0, &tv);
775#endif 1399#endif
776 } 1400 }
777} 1401}
778 1402
779/*****************************************************************************/ 1403/*****************************************************************************/
780 1404
781#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1405#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
782 1406
783/* find a suitable new size for the given array, */ 1407/* find a suitable new size for the given array, */
784/* hopefully by rounding to a ncie-to-malloc size */ 1408/* hopefully by rounding to a nice-to-malloc size */
785inline_size int 1409inline_size int
786array_nextsize (int elem, int cur, int cnt) 1410array_nextsize (int elem, int cur, int cnt)
787{ 1411{
788 int ncur = cur + 1; 1412 int ncur = cur + 1;
789 1413
790 do 1414 do
791 ncur <<= 1; 1415 ncur <<= 1;
792 while (cnt > ncur); 1416 while (cnt > ncur);
793 1417
794 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1418 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
795 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1419 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
796 { 1420 {
797 ncur *= elem; 1421 ncur *= elem;
798 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1422 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
799 ncur = ncur - sizeof (void *) * 4; 1423 ncur = ncur - sizeof (void *) * 4;
… …
801 } 1425 }
802 1426
803 return ncur; 1427 return ncur;
804} 1428}
805 1429
806static noinline void * 1430static void * noinline ecb_cold
807array_realloc (int elem, void *base, int *cur, int cnt) 1431array_realloc (int elem, void *base, int *cur, int cnt)
808{ 1432{
809 *cur = array_nextsize (elem, *cur, cnt); 1433 *cur = array_nextsize (elem, *cur, cnt);
810 return ev_realloc (base, elem * *cur); 1434 return ev_realloc (base, elem * *cur);
811} 1435}
… …
814 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1438 memset ((void *)(base), 0, sizeof (*(base)) * (count))
815 1439
816#define array_needsize(type,base,cur,cnt,init) \ 1440#define array_needsize(type,base,cur,cnt,init) \
817 if (expect_false ((cnt) > (cur))) \ 1441 if (expect_false ((cnt) > (cur))) \
818 { \ 1442 { \
819 int ocur_ = (cur); \ 1443 int ecb_unused ocur_ = (cur); \
820 (base) = (type *)array_realloc \ 1444 (base) = (type *)array_realloc \
821 (sizeof (type), (base), &(cur), (cnt)); \ 1445 (sizeof (type), (base), &(cur), (cnt)); \
822 init ((base) + (ocur_), (cur) - ocur_); \ 1446 init ((base) + (ocur_), (cur) - ocur_); \
823 } 1447 }
824 1448
… …
842pendingcb (EV_P_ ev_prepare *w, int revents) 1466pendingcb (EV_P_ ev_prepare *w, int revents)
843{ 1467{
844} 1468}
845 1469
846void noinline 1470void noinline
847ev_feed_event (EV_P_ void *w, int revents) 1471ev_feed_event (EV_P_ void *w, int revents) EV_THROW
848{ 1472{
849 W w_ = (W)w; 1473 W w_ = (W)w;
850 int pri = ABSPRI (w_); 1474 int pri = ABSPRI (w_);
851 1475
852 if (expect_false (w_->pending)) 1476 if (expect_false (w_->pending))
… …
856 w_->pending = ++pendingcnt [pri]; 1480 w_->pending = ++pendingcnt [pri];
857 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1481 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
858 pendings [pri][w_->pending - 1].w = w_; 1482 pendings [pri][w_->pending - 1].w = w_;
859 pendings [pri][w_->pending - 1].events = revents; 1483 pendings [pri][w_->pending - 1].events = revents;
860 } 1484 }
1485
1486 pendingpri = NUMPRI - 1;
861} 1487}
862 1488
863inline_speed void 1489inline_speed void
864feed_reverse (EV_P_ W w) 1490feed_reverse (EV_P_ W w)
865{ 1491{
… …
885} 1511}
886 1512
887/*****************************************************************************/ 1513/*****************************************************************************/
888 1514
889inline_speed void 1515inline_speed void
890fd_event_nc (EV_P_ int fd, int revents) 1516fd_event_nocheck (EV_P_ int fd, int revents)
891{ 1517{
892 ANFD *anfd = anfds + fd; 1518 ANFD *anfd = anfds + fd;
893 ev_io *w; 1519 ev_io *w;
894 1520
895 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1521 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
907fd_event (EV_P_ int fd, int revents) 1533fd_event (EV_P_ int fd, int revents)
908{ 1534{
909 ANFD *anfd = anfds + fd; 1535 ANFD *anfd = anfds + fd;
910 1536
911 if (expect_true (!anfd->reify)) 1537 if (expect_true (!anfd->reify))
912 fd_event_nc (EV_A_ fd, revents); 1538 fd_event_nocheck (EV_A_ fd, revents);
913} 1539}
914 1540
915void 1541void
916ev_feed_fd_event (EV_P_ int fd, int revents) 1542ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
917{ 1543{
918 if (fd >= 0 && fd < anfdmax) 1544 if (fd >= 0 && fd < anfdmax)
919 fd_event_nc (EV_A_ fd, revents); 1545 fd_event_nocheck (EV_A_ fd, revents);
920} 1546}
921 1547
922/* make sure the external fd watch events are in-sync */ 1548/* make sure the external fd watch events are in-sync */
923/* with the kernel/libev internal state */ 1549/* with the kernel/libev internal state */
924inline_size void 1550inline_size void
925fd_reify (EV_P) 1551fd_reify (EV_P)
926{ 1552{
927 int i; 1553 int i;
928 1554
1555#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1556 for (i = 0; i < fdchangecnt; ++i)
1557 {
1558 int fd = fdchanges [i];
1559 ANFD *anfd = anfds + fd;
1560
1561 if (anfd->reify & EV__IOFDSET && anfd->head)
1562 {
1563 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1564
1565 if (handle != anfd->handle)
1566 {
1567 unsigned long arg;
1568
1569 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1570
1571 /* handle changed, but fd didn't - we need to do it in two steps */
1572 backend_modify (EV_A_ fd, anfd->events, 0);
1573 anfd->events = 0;
1574 anfd->handle = handle;
1575 }
1576 }
1577 }
1578#endif
1579
929 for (i = 0; i < fdchangecnt; ++i) 1580 for (i = 0; i < fdchangecnt; ++i)
930 { 1581 {
931 int fd = fdchanges [i]; 1582 int fd = fdchanges [i];
932 ANFD *anfd = anfds + fd; 1583 ANFD *anfd = anfds + fd;
933 ev_io *w; 1584 ev_io *w;
934 1585
935 unsigned char events = 0; 1586 unsigned char o_events = anfd->events;
1587 unsigned char o_reify = anfd->reify;
936 1588
937 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1589 anfd->reify = 0;
938 events |= (unsigned char)w->events;
939 1590
940#if EV_SELECT_IS_WINSOCKET 1591 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
941 if (events)
942 { 1592 {
943 unsigned long arg; 1593 anfd->events = 0;
944 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1594
945 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1595 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1596 anfd->events |= (unsigned char)w->events;
1597
1598 if (o_events != anfd->events)
1599 o_reify = EV__IOFDSET; /* actually |= */
946 } 1600 }
947#endif
948 1601
949 { 1602 if (o_reify & EV__IOFDSET)
950 unsigned char o_events = anfd->events;
951 unsigned char o_reify = anfd->reify;
952
953 anfd->reify = 0;
954 anfd->events = events;
955
956 if (o_events != events || o_reify & EV__IOFDSET)
957 backend_modify (EV_A_ fd, o_events, events); 1603 backend_modify (EV_A_ fd, o_events, anfd->events);
958 }
959 } 1604 }
960 1605
961 fdchangecnt = 0; 1606 fdchangecnt = 0;
962} 1607}
963 1608
… …
975 fdchanges [fdchangecnt - 1] = fd; 1620 fdchanges [fdchangecnt - 1] = fd;
976 } 1621 }
977} 1622}
978 1623
979/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1624/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
980inline_speed void 1625inline_speed void ecb_cold
981fd_kill (EV_P_ int fd) 1626fd_kill (EV_P_ int fd)
982{ 1627{
983 ev_io *w; 1628 ev_io *w;
984 1629
985 while ((w = (ev_io *)anfds [fd].head)) 1630 while ((w = (ev_io *)anfds [fd].head))
… …
987 ev_io_stop (EV_A_ w); 1632 ev_io_stop (EV_A_ w);
988 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1633 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
989 } 1634 }
990} 1635}
991 1636
992/* check whether the given fd is atcually valid, for error recovery */ 1637/* check whether the given fd is actually valid, for error recovery */
993inline_size int 1638inline_size int ecb_cold
994fd_valid (int fd) 1639fd_valid (int fd)
995{ 1640{
996#ifdef _WIN32 1641#ifdef _WIN32
997 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1642 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
998#else 1643#else
999 return fcntl (fd, F_GETFD) != -1; 1644 return fcntl (fd, F_GETFD) != -1;
1000#endif 1645#endif
1001} 1646}
1002 1647
1003/* called on EBADF to verify fds */ 1648/* called on EBADF to verify fds */
1004static void noinline 1649static void noinline ecb_cold
1005fd_ebadf (EV_P) 1650fd_ebadf (EV_P)
1006{ 1651{
1007 int fd; 1652 int fd;
1008 1653
1009 for (fd = 0; fd < anfdmax; ++fd) 1654 for (fd = 0; fd < anfdmax; ++fd)
… …
1011 if (!fd_valid (fd) && errno == EBADF) 1656 if (!fd_valid (fd) && errno == EBADF)
1012 fd_kill (EV_A_ fd); 1657 fd_kill (EV_A_ fd);
1013} 1658}
1014 1659
1015/* called on ENOMEM in select/poll to kill some fds and retry */ 1660/* called on ENOMEM in select/poll to kill some fds and retry */
1016static void noinline 1661static void noinline ecb_cold
1017fd_enomem (EV_P) 1662fd_enomem (EV_P)
1018{ 1663{
1019 int fd; 1664 int fd;
1020 1665
1021 for (fd = anfdmax; fd--; ) 1666 for (fd = anfdmax; fd--; )
… …
1039 anfds [fd].emask = 0; 1684 anfds [fd].emask = 0;
1040 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1685 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1041 } 1686 }
1042} 1687}
1043 1688
1689/* used to prepare libev internal fd's */
1690/* this is not fork-safe */
1691inline_speed void
1692fd_intern (int fd)
1693{
1694#ifdef _WIN32
1695 unsigned long arg = 1;
1696 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1697#else
1698 fcntl (fd, F_SETFD, FD_CLOEXEC);
1699 fcntl (fd, F_SETFL, O_NONBLOCK);
1700#endif
1701}
1702
1044/*****************************************************************************/ 1703/*****************************************************************************/
1045 1704
1046/* 1705/*
1047 * the heap functions want a real array index. array index 0 uis guaranteed to not 1706 * the heap functions want a real array index. array index 0 is guaranteed to not
1048 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1707 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1049 * the branching factor of the d-tree. 1708 * the branching factor of the d-tree.
1050 */ 1709 */
1051 1710
1052/* 1711/*
… …
1200 1859
1201static ANSIG signals [EV_NSIG - 1]; 1860static ANSIG signals [EV_NSIG - 1];
1202 1861
1203/*****************************************************************************/ 1862/*****************************************************************************/
1204 1863
1205/* used to prepare libev internal fd's */ 1864#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1206/* this is not fork-safe */
1207inline_speed void
1208fd_intern (int fd)
1209{
1210#ifdef _WIN32
1211 unsigned long arg = 1;
1212 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1213#else
1214 fcntl (fd, F_SETFD, FD_CLOEXEC);
1215 fcntl (fd, F_SETFL, O_NONBLOCK);
1216#endif
1217}
1218 1865
1219static void noinline 1866static void noinline ecb_cold
1220evpipe_init (EV_P) 1867evpipe_init (EV_P)
1221{ 1868{
1222 if (!ev_is_active (&pipe_w)) 1869 if (!ev_is_active (&pipe_w))
1223 { 1870 {
1224#if EV_USE_EVENTFD 1871# if EV_USE_EVENTFD
1225 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1872 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1226 if (evfd < 0 && errno == EINVAL) 1873 if (evfd < 0 && errno == EINVAL)
1227 evfd = eventfd (0, 0); 1874 evfd = eventfd (0, 0);
1228 1875
1229 if (evfd >= 0) 1876 if (evfd >= 0)
… …
1231 evpipe [0] = -1; 1878 evpipe [0] = -1;
1232 fd_intern (evfd); /* doing it twice doesn't hurt */ 1879 fd_intern (evfd); /* doing it twice doesn't hurt */
1233 ev_io_set (&pipe_w, evfd, EV_READ); 1880 ev_io_set (&pipe_w, evfd, EV_READ);
1234 } 1881 }
1235 else 1882 else
1236#endif 1883# endif
1237 { 1884 {
1238 while (pipe (evpipe)) 1885 while (pipe (evpipe))
1239 ev_syserr ("(libev) error creating signal/async pipe"); 1886 ev_syserr ("(libev) error creating signal/async pipe");
1240 1887
1241 fd_intern (evpipe [0]); 1888 fd_intern (evpipe [0]);
… …
1246 ev_io_start (EV_A_ &pipe_w); 1893 ev_io_start (EV_A_ &pipe_w);
1247 ev_unref (EV_A); /* watcher should not keep loop alive */ 1894 ev_unref (EV_A); /* watcher should not keep loop alive */
1248 } 1895 }
1249} 1896}
1250 1897
1251inline_size void 1898inline_speed void
1252evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1899evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1253{ 1900{
1254 if (!*flag) 1901 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1902
1903 if (expect_true (*flag))
1904 return;
1905
1906 *flag = 1;
1907 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1908
1909 pipe_write_skipped = 1;
1910
1911 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1912
1913 if (pipe_write_wanted)
1255 { 1914 {
1915 int old_errno;
1916
1917 pipe_write_skipped = 0;
1918 ECB_MEMORY_FENCE_RELEASE;
1919
1256 int old_errno = errno; /* save errno because write might clobber it */ 1920 old_errno = errno; /* save errno because write will clobber it */
1257
1258 *flag = 1;
1259 1921
1260#if EV_USE_EVENTFD 1922#if EV_USE_EVENTFD
1261 if (evfd >= 0) 1923 if (evfd >= 0)
1262 { 1924 {
1263 uint64_t counter = 1; 1925 uint64_t counter = 1;
1264 write (evfd, &counter, sizeof (uint64_t)); 1926 write (evfd, &counter, sizeof (uint64_t));
1265 } 1927 }
1266 else 1928 else
1267#endif 1929#endif
1930 {
1931#ifdef _WIN32
1932 WSABUF buf;
1933 DWORD sent;
1934 buf.buf = &buf;
1935 buf.len = 1;
1936 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1937#else
1268 write (evpipe [1], &old_errno, 1); 1938 write (evpipe [1], &(evpipe [1]), 1);
1939#endif
1940 }
1269 1941
1270 errno = old_errno; 1942 errno = old_errno;
1271 } 1943 }
1272} 1944}
1273 1945
… …
1276static void 1948static void
1277pipecb (EV_P_ ev_io *iow, int revents) 1949pipecb (EV_P_ ev_io *iow, int revents)
1278{ 1950{
1279 int i; 1951 int i;
1280 1952
1953 if (revents & EV_READ)
1954 {
1281#if EV_USE_EVENTFD 1955#if EV_USE_EVENTFD
1282 if (evfd >= 0) 1956 if (evfd >= 0)
1283 { 1957 {
1284 uint64_t counter; 1958 uint64_t counter;
1285 read (evfd, &counter, sizeof (uint64_t)); 1959 read (evfd, &counter, sizeof (uint64_t));
1286 } 1960 }
1287 else 1961 else
1288#endif 1962#endif
1289 { 1963 {
1290 char dummy; 1964 char dummy[4];
1965#ifdef _WIN32
1966 WSABUF buf;
1967 DWORD recvd;
1968 DWORD flags = 0;
1969 buf.buf = dummy;
1970 buf.len = sizeof (dummy);
1971 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1972#else
1291 read (evpipe [0], &dummy, 1); 1973 read (evpipe [0], &dummy, sizeof (dummy));
1974#endif
1975 }
1292 } 1976 }
1293 1977
1978 pipe_write_skipped = 0;
1979
1980 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1981
1982#if EV_SIGNAL_ENABLE
1294 if (sig_pending) 1983 if (sig_pending)
1295 { 1984 {
1296 sig_pending = 0; 1985 sig_pending = 0;
1986
1987 ECB_MEMORY_FENCE;
1297 1988
1298 for (i = EV_NSIG - 1; i--; ) 1989 for (i = EV_NSIG - 1; i--; )
1299 if (expect_false (signals [i].pending)) 1990 if (expect_false (signals [i].pending))
1300 ev_feed_signal_event (EV_A_ i + 1); 1991 ev_feed_signal_event (EV_A_ i + 1);
1301 } 1992 }
1993#endif
1302 1994
1303#if EV_ASYNC_ENABLE 1995#if EV_ASYNC_ENABLE
1304 if (async_pending) 1996 if (async_pending)
1305 { 1997 {
1306 async_pending = 0; 1998 async_pending = 0;
1999
2000 ECB_MEMORY_FENCE;
1307 2001
1308 for (i = asynccnt; i--; ) 2002 for (i = asynccnt; i--; )
1309 if (asyncs [i]->sent) 2003 if (asyncs [i]->sent)
1310 { 2004 {
1311 asyncs [i]->sent = 0; 2005 asyncs [i]->sent = 0;
2006 ECB_MEMORY_FENCE_RELEASE;
1312 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2007 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1313 } 2008 }
1314 } 2009 }
1315#endif 2010#endif
1316} 2011}
1317 2012
1318/*****************************************************************************/ 2013/*****************************************************************************/
1319 2014
2015void
2016ev_feed_signal (int signum) EV_THROW
2017{
2018#if EV_MULTIPLICITY
2019 EV_P = signals [signum - 1].loop;
2020
2021 if (!EV_A)
2022 return;
2023#endif
2024
2025 if (!ev_active (&pipe_w))
2026 return;
2027
2028 signals [signum - 1].pending = 1;
2029 evpipe_write (EV_A_ &sig_pending);
2030}
2031
1320static void 2032static void
1321ev_sighandler (int signum) 2033ev_sighandler (int signum)
1322{ 2034{
1323#if EV_MULTIPLICITY
1324 EV_P = signals [signum - 1].loop;
1325#endif
1326
1327#ifdef _WIN32 2035#ifdef _WIN32
1328 signal (signum, ev_sighandler); 2036 signal (signum, ev_sighandler);
1329#endif 2037#endif
1330 2038
1331 signals [signum - 1].pending = 1; 2039 ev_feed_signal (signum);
1332 evpipe_write (EV_A_ &sig_pending);
1333} 2040}
1334 2041
1335void noinline 2042void noinline
1336ev_feed_signal_event (EV_P_ int signum) 2043ev_feed_signal_event (EV_P_ int signum) EV_THROW
1337{ 2044{
1338 WL w; 2045 WL w;
1339 2046
1340 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2047 if (expect_false (signum <= 0 || signum > EV_NSIG))
1341 return; 2048 return;
… …
1349 if (expect_false (signals [signum].loop != EV_A)) 2056 if (expect_false (signals [signum].loop != EV_A))
1350 return; 2057 return;
1351#endif 2058#endif
1352 2059
1353 signals [signum].pending = 0; 2060 signals [signum].pending = 0;
2061 ECB_MEMORY_FENCE_RELEASE;
1354 2062
1355 for (w = signals [signum].head; w; w = w->next) 2063 for (w = signals [signum].head; w; w = w->next)
1356 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2064 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1357} 2065}
1358 2066
… …
1374 break; 2082 break;
1375 } 2083 }
1376} 2084}
1377#endif 2085#endif
1378 2086
2087#endif
2088
1379/*****************************************************************************/ 2089/*****************************************************************************/
1380 2090
2091#if EV_CHILD_ENABLE
1381static WL childs [EV_PID_HASHSIZE]; 2092static WL childs [EV_PID_HASHSIZE];
1382
1383#ifndef _WIN32
1384 2093
1385static ev_signal childev; 2094static ev_signal childev;
1386 2095
1387#ifndef WIFCONTINUED 2096#ifndef WIFCONTINUED
1388# define WIFCONTINUED(status) 0 2097# define WIFCONTINUED(status) 0
… …
1393child_reap (EV_P_ int chain, int pid, int status) 2102child_reap (EV_P_ int chain, int pid, int status)
1394{ 2103{
1395 ev_child *w; 2104 ev_child *w;
1396 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2105 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1397 2106
1398 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2107 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1399 { 2108 {
1400 if ((w->pid == pid || !w->pid) 2109 if ((w->pid == pid || !w->pid)
1401 && (!traced || (w->flags & 1))) 2110 && (!traced || (w->flags & 1)))
1402 { 2111 {
1403 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2112 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1428 /* make sure we are called again until all children have been reaped */ 2137 /* make sure we are called again until all children have been reaped */
1429 /* we need to do it this way so that the callback gets called before we continue */ 2138 /* we need to do it this way so that the callback gets called before we continue */
1430 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2139 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1431 2140
1432 child_reap (EV_A_ pid, pid, status); 2141 child_reap (EV_A_ pid, pid, status);
1433 if (EV_PID_HASHSIZE > 1) 2142 if ((EV_PID_HASHSIZE) > 1)
1434 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2143 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1435} 2144}
1436 2145
1437#endif 2146#endif
1438 2147
1439/*****************************************************************************/ 2148/*****************************************************************************/
1440 2149
2150#if EV_USE_IOCP
2151# include "ev_iocp.c"
2152#endif
1441#if EV_USE_PORT 2153#if EV_USE_PORT
1442# include "ev_port.c" 2154# include "ev_port.c"
1443#endif 2155#endif
1444#if EV_USE_KQUEUE 2156#if EV_USE_KQUEUE
1445# include "ev_kqueue.c" 2157# include "ev_kqueue.c"
… …
1452#endif 2164#endif
1453#if EV_USE_SELECT 2165#if EV_USE_SELECT
1454# include "ev_select.c" 2166# include "ev_select.c"
1455#endif 2167#endif
1456 2168
1457int 2169int ecb_cold
1458ev_version_major (void) 2170ev_version_major (void) EV_THROW
1459{ 2171{
1460 return EV_VERSION_MAJOR; 2172 return EV_VERSION_MAJOR;
1461} 2173}
1462 2174
1463int 2175int ecb_cold
1464ev_version_minor (void) 2176ev_version_minor (void) EV_THROW
1465{ 2177{
1466 return EV_VERSION_MINOR; 2178 return EV_VERSION_MINOR;
1467} 2179}
1468 2180
1469/* return true if we are running with elevated privileges and should ignore env variables */ 2181/* return true if we are running with elevated privileges and should ignore env variables */
1470int inline_size 2182int inline_size ecb_cold
1471enable_secure (void) 2183enable_secure (void)
1472{ 2184{
1473#ifdef _WIN32 2185#ifdef _WIN32
1474 return 0; 2186 return 0;
1475#else 2187#else
1476 return getuid () != geteuid () 2188 return getuid () != geteuid ()
1477 || getgid () != getegid (); 2189 || getgid () != getegid ();
1478#endif 2190#endif
1479} 2191}
1480 2192
1481unsigned int 2193unsigned int ecb_cold
1482ev_supported_backends (void) 2194ev_supported_backends (void) EV_THROW
1483{ 2195{
1484 unsigned int flags = 0; 2196 unsigned int flags = 0;
1485 2197
1486 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2198 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1487 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2199 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1490 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2202 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1491 2203
1492 return flags; 2204 return flags;
1493} 2205}
1494 2206
1495unsigned int 2207unsigned int ecb_cold
1496ev_recommended_backends (void) 2208ev_recommended_backends (void) EV_THROW
1497{ 2209{
1498 unsigned int flags = ev_supported_backends (); 2210 unsigned int flags = ev_supported_backends ();
1499 2211
1500#ifndef __NetBSD__ 2212#ifndef __NetBSD__
1501 /* kqueue is borked on everything but netbsd apparently */ 2213 /* kqueue is borked on everything but netbsd apparently */
… …
1505#ifdef __APPLE__ 2217#ifdef __APPLE__
1506 /* only select works correctly on that "unix-certified" platform */ 2218 /* only select works correctly on that "unix-certified" platform */
1507 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2219 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1508 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2220 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1509#endif 2221#endif
2222#ifdef __FreeBSD__
2223 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2224#endif
1510 2225
1511 return flags; 2226 return flags;
1512} 2227}
1513 2228
2229unsigned int ecb_cold
2230ev_embeddable_backends (void) EV_THROW
2231{
2232 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2233
2234 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2235 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2236 flags &= ~EVBACKEND_EPOLL;
2237
2238 return flags;
2239}
2240
1514unsigned int 2241unsigned int
1515ev_embeddable_backends (void) 2242ev_backend (EV_P) EV_THROW
1516{ 2243{
1517 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2244 return backend;
1518
1519 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1520 /* please fix it and tell me how to detect the fix */
1521 flags &= ~EVBACKEND_EPOLL;
1522
1523 return flags;
1524} 2245}
1525 2246
2247#if EV_FEATURE_API
1526unsigned int 2248unsigned int
1527ev_backend (EV_P) 2249ev_iteration (EV_P) EV_THROW
1528{ 2250{
1529 return backend; 2251 return loop_count;
1530} 2252}
1531 2253
1532#if EV_MINIMAL < 2
1533unsigned int 2254unsigned int
1534ev_loop_count (EV_P) 2255ev_depth (EV_P) EV_THROW
1535{
1536 return loop_count;
1537}
1538
1539unsigned int
1540ev_loop_depth (EV_P)
1541{ 2256{
1542 return loop_depth; 2257 return loop_depth;
1543} 2258}
1544 2259
1545void 2260void
1546ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2261ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1547{ 2262{
1548 io_blocktime = interval; 2263 io_blocktime = interval;
1549} 2264}
1550 2265
1551void 2266void
1552ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2267ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1553{ 2268{
1554 timeout_blocktime = interval; 2269 timeout_blocktime = interval;
1555} 2270}
1556 2271
1557void 2272void
1558ev_set_userdata (EV_P_ void *data) 2273ev_set_userdata (EV_P_ void *data) EV_THROW
1559{ 2274{
1560 userdata = data; 2275 userdata = data;
1561} 2276}
1562 2277
1563void * 2278void *
1564ev_userdata (EV_P) 2279ev_userdata (EV_P) EV_THROW
1565{ 2280{
1566 return userdata; 2281 return userdata;
1567} 2282}
1568 2283
2284void
1569void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2285ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1570{ 2286{
1571 invoke_cb = invoke_pending_cb; 2287 invoke_cb = invoke_pending_cb;
1572} 2288}
1573 2289
2290void
1574void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2291ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1575{ 2292{
1576 release_cb = release; 2293 release_cb = release;
1577 acquire_cb = acquire; 2294 acquire_cb = acquire;
1578} 2295}
1579#endif 2296#endif
1580 2297
1581/* initialise a loop structure, must be zero-initialised */ 2298/* initialise a loop structure, must be zero-initialised */
1582static void noinline 2299static void noinline ecb_cold
1583loop_init (EV_P_ unsigned int flags) 2300loop_init (EV_P_ unsigned int flags) EV_THROW
1584{ 2301{
1585 if (!backend) 2302 if (!backend)
1586 { 2303 {
2304 origflags = flags;
2305
1587#if EV_USE_REALTIME 2306#if EV_USE_REALTIME
1588 if (!have_realtime) 2307 if (!have_realtime)
1589 { 2308 {
1590 struct timespec ts; 2309 struct timespec ts;
1591 2310
… …
1613 if (!(flags & EVFLAG_NOENV) 2332 if (!(flags & EVFLAG_NOENV)
1614 && !enable_secure () 2333 && !enable_secure ()
1615 && getenv ("LIBEV_FLAGS")) 2334 && getenv ("LIBEV_FLAGS"))
1616 flags = atoi (getenv ("LIBEV_FLAGS")); 2335 flags = atoi (getenv ("LIBEV_FLAGS"));
1617 2336
1618 ev_rt_now = ev_time (); 2337 ev_rt_now = ev_time ();
1619 mn_now = get_clock (); 2338 mn_now = get_clock ();
1620 now_floor = mn_now; 2339 now_floor = mn_now;
1621 rtmn_diff = ev_rt_now - mn_now; 2340 rtmn_diff = ev_rt_now - mn_now;
1622#if EV_MINIMAL < 2 2341#if EV_FEATURE_API
1623 invoke_cb = ev_invoke_pending; 2342 invoke_cb = ev_invoke_pending;
1624#endif 2343#endif
1625 2344
1626 io_blocktime = 0.; 2345 io_blocktime = 0.;
1627 timeout_blocktime = 0.; 2346 timeout_blocktime = 0.;
1628 backend = 0; 2347 backend = 0;
1629 backend_fd = -1; 2348 backend_fd = -1;
1630 sig_pending = 0; 2349 sig_pending = 0;
1631#if EV_ASYNC_ENABLE 2350#if EV_ASYNC_ENABLE
1632 async_pending = 0; 2351 async_pending = 0;
1633#endif 2352#endif
2353 pipe_write_skipped = 0;
2354 pipe_write_wanted = 0;
1634#if EV_USE_INOTIFY 2355#if EV_USE_INOTIFY
1635 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2356 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1636#endif 2357#endif
1637#if EV_USE_SIGNALFD 2358#if EV_USE_SIGNALFD
1638 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2359 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1639#endif 2360#endif
1640 2361
1641 if (!(flags & 0x0000ffffU)) 2362 if (!(flags & EVBACKEND_MASK))
1642 flags |= ev_recommended_backends (); 2363 flags |= ev_recommended_backends ();
1643 2364
2365#if EV_USE_IOCP
2366 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2367#endif
1644#if EV_USE_PORT 2368#if EV_USE_PORT
1645 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2369 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1646#endif 2370#endif
1647#if EV_USE_KQUEUE 2371#if EV_USE_KQUEUE
1648 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2372 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1657 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2381 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1658#endif 2382#endif
1659 2383
1660 ev_prepare_init (&pending_w, pendingcb); 2384 ev_prepare_init (&pending_w, pendingcb);
1661 2385
2386#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1662 ev_init (&pipe_w, pipecb); 2387 ev_init (&pipe_w, pipecb);
1663 ev_set_priority (&pipe_w, EV_MAXPRI); 2388 ev_set_priority (&pipe_w, EV_MAXPRI);
2389#endif
1664 } 2390 }
1665} 2391}
1666 2392
1667/* free up a loop structure */ 2393/* free up a loop structure */
1668static void noinline 2394void ecb_cold
1669loop_destroy (EV_P) 2395ev_loop_destroy (EV_P)
1670{ 2396{
1671 int i; 2397 int i;
2398
2399#if EV_MULTIPLICITY
2400 /* mimic free (0) */
2401 if (!EV_A)
2402 return;
2403#endif
2404
2405#if EV_CLEANUP_ENABLE
2406 /* queue cleanup watchers (and execute them) */
2407 if (expect_false (cleanupcnt))
2408 {
2409 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2410 EV_INVOKE_PENDING;
2411 }
2412#endif
2413
2414#if EV_CHILD_ENABLE
2415 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2416 {
2417 ev_ref (EV_A); /* child watcher */
2418 ev_signal_stop (EV_A_ &childev);
2419 }
2420#endif
1672 2421
1673 if (ev_is_active (&pipe_w)) 2422 if (ev_is_active (&pipe_w))
1674 { 2423 {
1675 /*ev_ref (EV_A);*/ 2424 /*ev_ref (EV_A);*/
1676 /*ev_io_stop (EV_A_ &pipe_w);*/ 2425 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1698#endif 2447#endif
1699 2448
1700 if (backend_fd >= 0) 2449 if (backend_fd >= 0)
1701 close (backend_fd); 2450 close (backend_fd);
1702 2451
2452#if EV_USE_IOCP
2453 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2454#endif
1703#if EV_USE_PORT 2455#if EV_USE_PORT
1704 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2456 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1705#endif 2457#endif
1706#if EV_USE_KQUEUE 2458#if EV_USE_KQUEUE
1707 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2459 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1734 array_free (periodic, EMPTY); 2486 array_free (periodic, EMPTY);
1735#endif 2487#endif
1736#if EV_FORK_ENABLE 2488#if EV_FORK_ENABLE
1737 array_free (fork, EMPTY); 2489 array_free (fork, EMPTY);
1738#endif 2490#endif
2491#if EV_CLEANUP_ENABLE
2492 array_free (cleanup, EMPTY);
2493#endif
1739 array_free (prepare, EMPTY); 2494 array_free (prepare, EMPTY);
1740 array_free (check, EMPTY); 2495 array_free (check, EMPTY);
1741#if EV_ASYNC_ENABLE 2496#if EV_ASYNC_ENABLE
1742 array_free (async, EMPTY); 2497 array_free (async, EMPTY);
1743#endif 2498#endif
1744 2499
1745 backend = 0; 2500 backend = 0;
2501
2502#if EV_MULTIPLICITY
2503 if (ev_is_default_loop (EV_A))
2504#endif
2505 ev_default_loop_ptr = 0;
2506#if EV_MULTIPLICITY
2507 else
2508 ev_free (EV_A);
2509#endif
1746} 2510}
1747 2511
1748#if EV_USE_INOTIFY 2512#if EV_USE_INOTIFY
1749inline_size void infy_fork (EV_P); 2513inline_size void infy_fork (EV_P);
1750#endif 2514#endif
… …
1765 infy_fork (EV_A); 2529 infy_fork (EV_A);
1766#endif 2530#endif
1767 2531
1768 if (ev_is_active (&pipe_w)) 2532 if (ev_is_active (&pipe_w))
1769 { 2533 {
1770 /* this "locks" the handlers against writing to the pipe */ 2534 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1771 /* while we modify the fd vars */
1772 sig_pending = 1;
1773#if EV_ASYNC_ENABLE
1774 async_pending = 1;
1775#endif
1776 2535
1777 ev_ref (EV_A); 2536 ev_ref (EV_A);
1778 ev_io_stop (EV_A_ &pipe_w); 2537 ev_io_stop (EV_A_ &pipe_w);
1779 2538
1780#if EV_USE_EVENTFD 2539#if EV_USE_EVENTFD
… …
1786 { 2545 {
1787 EV_WIN32_CLOSE_FD (evpipe [0]); 2546 EV_WIN32_CLOSE_FD (evpipe [0]);
1788 EV_WIN32_CLOSE_FD (evpipe [1]); 2547 EV_WIN32_CLOSE_FD (evpipe [1]);
1789 } 2548 }
1790 2549
2550#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1791 evpipe_init (EV_A); 2551 evpipe_init (EV_A);
1792 /* now iterate over everything, in case we missed something */ 2552 /* now iterate over everything, in case we missed something */
1793 pipecb (EV_A_ &pipe_w, EV_READ); 2553 pipecb (EV_A_ &pipe_w, EV_READ);
2554#endif
1794 } 2555 }
1795 2556
1796 postfork = 0; 2557 postfork = 0;
1797} 2558}
1798 2559
1799#if EV_MULTIPLICITY 2560#if EV_MULTIPLICITY
1800 2561
1801struct ev_loop * 2562struct ev_loop * ecb_cold
1802ev_loop_new (unsigned int flags) 2563ev_loop_new (unsigned int flags) EV_THROW
1803{ 2564{
1804 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2565 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1805 2566
1806 memset (EV_A, 0, sizeof (struct ev_loop)); 2567 memset (EV_A, 0, sizeof (struct ev_loop));
1807 loop_init (EV_A_ flags); 2568 loop_init (EV_A_ flags);
1808 2569
1809 if (ev_backend (EV_A)) 2570 if (ev_backend (EV_A))
1810 return EV_A; 2571 return EV_A;
1811 2572
2573 ev_free (EV_A);
1812 return 0; 2574 return 0;
1813} 2575}
1814 2576
1815void
1816ev_loop_destroy (EV_P)
1817{
1818 loop_destroy (EV_A);
1819 ev_free (loop);
1820}
1821
1822void
1823ev_loop_fork (EV_P)
1824{
1825 postfork = 1; /* must be in line with ev_default_fork */
1826}
1827#endif /* multiplicity */ 2577#endif /* multiplicity */
1828 2578
1829#if EV_VERIFY 2579#if EV_VERIFY
1830static void noinline 2580static void noinline ecb_cold
1831verify_watcher (EV_P_ W w) 2581verify_watcher (EV_P_ W w)
1832{ 2582{
1833 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2583 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1834 2584
1835 if (w->pending) 2585 if (w->pending)
1836 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2586 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1837} 2587}
1838 2588
1839static void noinline 2589static void noinline ecb_cold
1840verify_heap (EV_P_ ANHE *heap, int N) 2590verify_heap (EV_P_ ANHE *heap, int N)
1841{ 2591{
1842 int i; 2592 int i;
1843 2593
1844 for (i = HEAP0; i < N + HEAP0; ++i) 2594 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1849 2599
1850 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2600 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1851 } 2601 }
1852} 2602}
1853 2603
1854static void noinline 2604static void noinline ecb_cold
1855array_verify (EV_P_ W *ws, int cnt) 2605array_verify (EV_P_ W *ws, int cnt)
1856{ 2606{
1857 while (cnt--) 2607 while (cnt--)
1858 { 2608 {
1859 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2609 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1860 verify_watcher (EV_A_ ws [cnt]); 2610 verify_watcher (EV_A_ ws [cnt]);
1861 } 2611 }
1862} 2612}
1863#endif 2613#endif
1864 2614
1865#if EV_MINIMAL < 2 2615#if EV_FEATURE_API
1866void 2616void ecb_cold
1867ev_loop_verify (EV_P) 2617ev_verify (EV_P) EV_THROW
1868{ 2618{
1869#if EV_VERIFY 2619#if EV_VERIFY
1870 int i; 2620 int i;
1871 WL w; 2621 WL w, w2;
1872 2622
1873 assert (activecnt >= -1); 2623 assert (activecnt >= -1);
1874 2624
1875 assert (fdchangemax >= fdchangecnt); 2625 assert (fdchangemax >= fdchangecnt);
1876 for (i = 0; i < fdchangecnt; ++i) 2626 for (i = 0; i < fdchangecnt; ++i)
1877 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2627 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1878 2628
1879 assert (anfdmax >= 0); 2629 assert (anfdmax >= 0);
1880 for (i = 0; i < anfdmax; ++i) 2630 for (i = 0; i < anfdmax; ++i)
2631 {
2632 int j = 0;
2633
1881 for (w = anfds [i].head; w; w = w->next) 2634 for (w = w2 = anfds [i].head; w; w = w->next)
1882 { 2635 {
1883 verify_watcher (EV_A_ (W)w); 2636 verify_watcher (EV_A_ (W)w);
2637
2638 if (j++ & 1)
2639 {
2640 assert (("libev: io watcher list contains a loop", w != w2));
2641 w2 = w2->next;
2642 }
2643
1884 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2644 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1885 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2645 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1886 } 2646 }
2647 }
1887 2648
1888 assert (timermax >= timercnt); 2649 assert (timermax >= timercnt);
1889 verify_heap (EV_A_ timers, timercnt); 2650 verify_heap (EV_A_ timers, timercnt);
1890 2651
1891#if EV_PERIODIC_ENABLE 2652#if EV_PERIODIC_ENABLE
… …
1906#if EV_FORK_ENABLE 2667#if EV_FORK_ENABLE
1907 assert (forkmax >= forkcnt); 2668 assert (forkmax >= forkcnt);
1908 array_verify (EV_A_ (W *)forks, forkcnt); 2669 array_verify (EV_A_ (W *)forks, forkcnt);
1909#endif 2670#endif
1910 2671
2672#if EV_CLEANUP_ENABLE
2673 assert (cleanupmax >= cleanupcnt);
2674 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2675#endif
2676
1911#if EV_ASYNC_ENABLE 2677#if EV_ASYNC_ENABLE
1912 assert (asyncmax >= asynccnt); 2678 assert (asyncmax >= asynccnt);
1913 array_verify (EV_A_ (W *)asyncs, asynccnt); 2679 array_verify (EV_A_ (W *)asyncs, asynccnt);
1914#endif 2680#endif
1915 2681
2682#if EV_PREPARE_ENABLE
1916 assert (preparemax >= preparecnt); 2683 assert (preparemax >= preparecnt);
1917 array_verify (EV_A_ (W *)prepares, preparecnt); 2684 array_verify (EV_A_ (W *)prepares, preparecnt);
2685#endif
1918 2686
2687#if EV_CHECK_ENABLE
1919 assert (checkmax >= checkcnt); 2688 assert (checkmax >= checkcnt);
1920 array_verify (EV_A_ (W *)checks, checkcnt); 2689 array_verify (EV_A_ (W *)checks, checkcnt);
2690#endif
1921 2691
1922# if 0 2692# if 0
2693#if EV_CHILD_ENABLE
1923 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2694 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1924 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2695 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2696#endif
1925# endif 2697# endif
1926#endif 2698#endif
1927} 2699}
1928#endif 2700#endif
1929 2701
1930#if EV_MULTIPLICITY 2702#if EV_MULTIPLICITY
1931struct ev_loop * 2703struct ev_loop * ecb_cold
1932ev_default_loop_init (unsigned int flags)
1933#else 2704#else
1934int 2705int
2706#endif
1935ev_default_loop (unsigned int flags) 2707ev_default_loop (unsigned int flags) EV_THROW
1936#endif
1937{ 2708{
1938 if (!ev_default_loop_ptr) 2709 if (!ev_default_loop_ptr)
1939 { 2710 {
1940#if EV_MULTIPLICITY 2711#if EV_MULTIPLICITY
1941 EV_P = ev_default_loop_ptr = &default_loop_struct; 2712 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1945 2716
1946 loop_init (EV_A_ flags); 2717 loop_init (EV_A_ flags);
1947 2718
1948 if (ev_backend (EV_A)) 2719 if (ev_backend (EV_A))
1949 { 2720 {
1950#ifndef _WIN32 2721#if EV_CHILD_ENABLE
1951 ev_signal_init (&childev, childcb, SIGCHLD); 2722 ev_signal_init (&childev, childcb, SIGCHLD);
1952 ev_set_priority (&childev, EV_MAXPRI); 2723 ev_set_priority (&childev, EV_MAXPRI);
1953 ev_signal_start (EV_A_ &childev); 2724 ev_signal_start (EV_A_ &childev);
1954 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2725 ev_unref (EV_A); /* child watcher should not keep loop alive */
1955#endif 2726#endif
… …
1960 2731
1961 return ev_default_loop_ptr; 2732 return ev_default_loop_ptr;
1962} 2733}
1963 2734
1964void 2735void
1965ev_default_destroy (void) 2736ev_loop_fork (EV_P) EV_THROW
1966{ 2737{
1967#if EV_MULTIPLICITY 2738 postfork = 1;
1968 EV_P = ev_default_loop_ptr;
1969#endif
1970
1971 ev_default_loop_ptr = 0;
1972
1973#ifndef _WIN32
1974 ev_ref (EV_A); /* child watcher */
1975 ev_signal_stop (EV_A_ &childev);
1976#endif
1977
1978 loop_destroy (EV_A);
1979}
1980
1981void
1982ev_default_fork (void)
1983{
1984#if EV_MULTIPLICITY
1985 EV_P = ev_default_loop_ptr;
1986#endif
1987
1988 postfork = 1; /* must be in line with ev_loop_fork */
1989} 2739}
1990 2740
1991/*****************************************************************************/ 2741/*****************************************************************************/
1992 2742
1993void 2743void
… …
1995{ 2745{
1996 EV_CB_INVOKE ((W)w, revents); 2746 EV_CB_INVOKE ((W)w, revents);
1997} 2747}
1998 2748
1999unsigned int 2749unsigned int
2000ev_pending_count (EV_P) 2750ev_pending_count (EV_P) EV_THROW
2001{ 2751{
2002 int pri; 2752 int pri;
2003 unsigned int count = 0; 2753 unsigned int count = 0;
2004 2754
2005 for (pri = NUMPRI; pri--; ) 2755 for (pri = NUMPRI; pri--; )
… …
2009} 2759}
2010 2760
2011void noinline 2761void noinline
2012ev_invoke_pending (EV_P) 2762ev_invoke_pending (EV_P)
2013{ 2763{
2014 int pri; 2764 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2015
2016 for (pri = NUMPRI; pri--; )
2017 while (pendingcnt [pri]) 2765 while (pendingcnt [pendingpri])
2018 { 2766 {
2019 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2767 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2020
2021 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2022 /* ^ this is no longer true, as pending_w could be here */
2023 2768
2024 p->w->pending = 0; 2769 p->w->pending = 0;
2025 EV_CB_INVOKE (p->w, p->events); 2770 EV_CB_INVOKE (p->w, p->events);
2026 EV_FREQUENT_CHECK; 2771 EV_FREQUENT_CHECK;
2027 } 2772 }
… …
2084 EV_FREQUENT_CHECK; 2829 EV_FREQUENT_CHECK;
2085 feed_reverse (EV_A_ (W)w); 2830 feed_reverse (EV_A_ (W)w);
2086 } 2831 }
2087 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2832 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2088 2833
2089 feed_reverse_done (EV_A_ EV_TIMEOUT); 2834 feed_reverse_done (EV_A_ EV_TIMER);
2090 } 2835 }
2091} 2836}
2092 2837
2093#if EV_PERIODIC_ENABLE 2838#if EV_PERIODIC_ENABLE
2839
2840static void noinline
2841periodic_recalc (EV_P_ ev_periodic *w)
2842{
2843 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2844 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2845
2846 /* the above almost always errs on the low side */
2847 while (at <= ev_rt_now)
2848 {
2849 ev_tstamp nat = at + w->interval;
2850
2851 /* when resolution fails us, we use ev_rt_now */
2852 if (expect_false (nat == at))
2853 {
2854 at = ev_rt_now;
2855 break;
2856 }
2857
2858 at = nat;
2859 }
2860
2861 ev_at (w) = at;
2862}
2863
2094/* make periodics pending */ 2864/* make periodics pending */
2095inline_size void 2865inline_size void
2096periodics_reify (EV_P) 2866periodics_reify (EV_P)
2097{ 2867{
2098 EV_FREQUENT_CHECK; 2868 EV_FREQUENT_CHECK;
2099 2869
2100 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2870 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2101 { 2871 {
2102 int feed_count = 0;
2103
2104 do 2872 do
2105 { 2873 {
2106 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2874 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2107 2875
2108 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2876 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2117 ANHE_at_cache (periodics [HEAP0]); 2885 ANHE_at_cache (periodics [HEAP0]);
2118 downheap (periodics, periodiccnt, HEAP0); 2886 downheap (periodics, periodiccnt, HEAP0);
2119 } 2887 }
2120 else if (w->interval) 2888 else if (w->interval)
2121 { 2889 {
2122 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2890 periodic_recalc (EV_A_ w);
2123 /* if next trigger time is not sufficiently in the future, put it there */
2124 /* this might happen because of floating point inexactness */
2125 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2126 {
2127 ev_at (w) += w->interval;
2128
2129 /* if interval is unreasonably low we might still have a time in the past */
2130 /* so correct this. this will make the periodic very inexact, but the user */
2131 /* has effectively asked to get triggered more often than possible */
2132 if (ev_at (w) < ev_rt_now)
2133 ev_at (w) = ev_rt_now;
2134 }
2135
2136 ANHE_at_cache (periodics [HEAP0]); 2891 ANHE_at_cache (periodics [HEAP0]);
2137 downheap (periodics, periodiccnt, HEAP0); 2892 downheap (periodics, periodiccnt, HEAP0);
2138 } 2893 }
2139 else 2894 else
2140 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2895 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2147 feed_reverse_done (EV_A_ EV_PERIODIC); 2902 feed_reverse_done (EV_A_ EV_PERIODIC);
2148 } 2903 }
2149} 2904}
2150 2905
2151/* simply recalculate all periodics */ 2906/* simply recalculate all periodics */
2152/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2907/* TODO: maybe ensure that at least one event happens when jumping forward? */
2153static void noinline 2908static void noinline ecb_cold
2154periodics_reschedule (EV_P) 2909periodics_reschedule (EV_P)
2155{ 2910{
2156 int i; 2911 int i;
2157 2912
2158 /* adjust periodics after time jump */ 2913 /* adjust periodics after time jump */
… …
2161 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2916 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2162 2917
2163 if (w->reschedule_cb) 2918 if (w->reschedule_cb)
2164 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2919 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2165 else if (w->interval) 2920 else if (w->interval)
2166 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2921 periodic_recalc (EV_A_ w);
2167 2922
2168 ANHE_at_cache (periodics [i]); 2923 ANHE_at_cache (periodics [i]);
2169 } 2924 }
2170 2925
2171 reheap (periodics, periodiccnt); 2926 reheap (periodics, periodiccnt);
2172} 2927}
2173#endif 2928#endif
2174 2929
2175/* adjust all timers by a given offset */ 2930/* adjust all timers by a given offset */
2176static void noinline 2931static void noinline ecb_cold
2177timers_reschedule (EV_P_ ev_tstamp adjust) 2932timers_reschedule (EV_P_ ev_tstamp adjust)
2178{ 2933{
2179 int i; 2934 int i;
2180 2935
2181 for (i = 0; i < timercnt; ++i) 2936 for (i = 0; i < timercnt; ++i)
… …
2218 * doesn't hurt either as we only do this on time-jumps or 2973 * doesn't hurt either as we only do this on time-jumps or
2219 * in the unlikely event of having been preempted here. 2974 * in the unlikely event of having been preempted here.
2220 */ 2975 */
2221 for (i = 4; --i; ) 2976 for (i = 4; --i; )
2222 { 2977 {
2978 ev_tstamp diff;
2223 rtmn_diff = ev_rt_now - mn_now; 2979 rtmn_diff = ev_rt_now - mn_now;
2224 2980
2981 diff = odiff - rtmn_diff;
2982
2225 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2983 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2226 return; /* all is well */ 2984 return; /* all is well */
2227 2985
2228 ev_rt_now = ev_time (); 2986 ev_rt_now = ev_time ();
2229 mn_now = get_clock (); 2987 mn_now = get_clock ();
2230 now_floor = mn_now; 2988 now_floor = mn_now;
… …
2252 3010
2253 mn_now = ev_rt_now; 3011 mn_now = ev_rt_now;
2254 } 3012 }
2255} 3013}
2256 3014
2257void 3015int
2258ev_loop (EV_P_ int flags) 3016ev_run (EV_P_ int flags)
2259{ 3017{
2260#if EV_MINIMAL < 2 3018#if EV_FEATURE_API
2261 ++loop_depth; 3019 ++loop_depth;
2262#endif 3020#endif
2263 3021
2264 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3022 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2265 3023
2266 loop_done = EVUNLOOP_CANCEL; 3024 loop_done = EVBREAK_CANCEL;
2267 3025
2268 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3026 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2269 3027
2270 do 3028 do
2271 { 3029 {
2272#if EV_VERIFY >= 2 3030#if EV_VERIFY >= 2
2273 ev_loop_verify (EV_A); 3031 ev_verify (EV_A);
2274#endif 3032#endif
2275 3033
2276#ifndef _WIN32 3034#ifndef _WIN32
2277 if (expect_false (curpid)) /* penalise the forking check even more */ 3035 if (expect_false (curpid)) /* penalise the forking check even more */
2278 if (expect_false (getpid () != curpid)) 3036 if (expect_false (getpid () != curpid))
… …
2290 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3048 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2291 EV_INVOKE_PENDING; 3049 EV_INVOKE_PENDING;
2292 } 3050 }
2293#endif 3051#endif
2294 3052
3053#if EV_PREPARE_ENABLE
2295 /* queue prepare watchers (and execute them) */ 3054 /* queue prepare watchers (and execute them) */
2296 if (expect_false (preparecnt)) 3055 if (expect_false (preparecnt))
2297 { 3056 {
2298 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3057 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2299 EV_INVOKE_PENDING; 3058 EV_INVOKE_PENDING;
2300 } 3059 }
3060#endif
2301 3061
2302 if (expect_false (loop_done)) 3062 if (expect_false (loop_done))
2303 break; 3063 break;
2304 3064
2305 /* we might have forked, so reify kernel state if necessary */ 3065 /* we might have forked, so reify kernel state if necessary */
… …
2312 /* calculate blocking time */ 3072 /* calculate blocking time */
2313 { 3073 {
2314 ev_tstamp waittime = 0.; 3074 ev_tstamp waittime = 0.;
2315 ev_tstamp sleeptime = 0.; 3075 ev_tstamp sleeptime = 0.;
2316 3076
3077 /* remember old timestamp for io_blocktime calculation */
3078 ev_tstamp prev_mn_now = mn_now;
3079
3080 /* update time to cancel out callback processing overhead */
3081 time_update (EV_A_ 1e100);
3082
3083 /* from now on, we want a pipe-wake-up */
3084 pipe_write_wanted = 1;
3085
3086 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3087
2317 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3088 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2318 { 3089 {
2319 /* remember old timestamp for io_blocktime calculation */
2320 ev_tstamp prev_mn_now = mn_now;
2321
2322 /* update time to cancel out callback processing overhead */
2323 time_update (EV_A_ 1e100);
2324
2325 waittime = MAX_BLOCKTIME; 3090 waittime = MAX_BLOCKTIME;
2326 3091
2327 if (timercnt) 3092 if (timercnt)
2328 { 3093 {
2329 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3094 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2330 if (waittime > to) waittime = to; 3095 if (waittime > to) waittime = to;
2331 } 3096 }
2332 3097
2333#if EV_PERIODIC_ENABLE 3098#if EV_PERIODIC_ENABLE
2334 if (periodiccnt) 3099 if (periodiccnt)
2335 { 3100 {
2336 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3101 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2337 if (waittime > to) waittime = to; 3102 if (waittime > to) waittime = to;
2338 } 3103 }
2339#endif 3104#endif
2340 3105
2341 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3106 /* don't let timeouts decrease the waittime below timeout_blocktime */
2342 if (expect_false (waittime < timeout_blocktime)) 3107 if (expect_false (waittime < timeout_blocktime))
2343 waittime = timeout_blocktime; 3108 waittime = timeout_blocktime;
3109
3110 /* at this point, we NEED to wait, so we have to ensure */
3111 /* to pass a minimum nonzero value to the backend */
3112 if (expect_false (waittime < backend_mintime))
3113 waittime = backend_mintime;
2344 3114
2345 /* extra check because io_blocktime is commonly 0 */ 3115 /* extra check because io_blocktime is commonly 0 */
2346 if (expect_false (io_blocktime)) 3116 if (expect_false (io_blocktime))
2347 { 3117 {
2348 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3118 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2349 3119
2350 if (sleeptime > waittime - backend_fudge) 3120 if (sleeptime > waittime - backend_mintime)
2351 sleeptime = waittime - backend_fudge; 3121 sleeptime = waittime - backend_mintime;
2352 3122
2353 if (expect_true (sleeptime > 0.)) 3123 if (expect_true (sleeptime > 0.))
2354 { 3124 {
2355 ev_sleep (sleeptime); 3125 ev_sleep (sleeptime);
2356 waittime -= sleeptime; 3126 waittime -= sleeptime;
2357 } 3127 }
2358 } 3128 }
2359 } 3129 }
2360 3130
2361#if EV_MINIMAL < 2 3131#if EV_FEATURE_API
2362 ++loop_count; 3132 ++loop_count;
2363#endif 3133#endif
2364 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3134 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2365 backend_poll (EV_A_ waittime); 3135 backend_poll (EV_A_ waittime);
2366 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3136 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3137
3138 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3139
3140 MEMORY_FENCE_ACQUIRE;
3141 if (pipe_write_skipped)
3142 {
3143 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3144 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3145 }
3146
2367 3147
2368 /* update ev_rt_now, do magic */ 3148 /* update ev_rt_now, do magic */
2369 time_update (EV_A_ waittime + sleeptime); 3149 time_update (EV_A_ waittime + sleeptime);
2370 } 3150 }
2371 3151
… …
2378#if EV_IDLE_ENABLE 3158#if EV_IDLE_ENABLE
2379 /* queue idle watchers unless other events are pending */ 3159 /* queue idle watchers unless other events are pending */
2380 idle_reify (EV_A); 3160 idle_reify (EV_A);
2381#endif 3161#endif
2382 3162
3163#if EV_CHECK_ENABLE
2383 /* queue check watchers, to be executed first */ 3164 /* queue check watchers, to be executed first */
2384 if (expect_false (checkcnt)) 3165 if (expect_false (checkcnt))
2385 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3166 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3167#endif
2386 3168
2387 EV_INVOKE_PENDING; 3169 EV_INVOKE_PENDING;
2388 } 3170 }
2389 while (expect_true ( 3171 while (expect_true (
2390 activecnt 3172 activecnt
2391 && !loop_done 3173 && !loop_done
2392 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3174 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2393 )); 3175 ));
2394 3176
2395 if (loop_done == EVUNLOOP_ONE) 3177 if (loop_done == EVBREAK_ONE)
2396 loop_done = EVUNLOOP_CANCEL; 3178 loop_done = EVBREAK_CANCEL;
2397 3179
2398#if EV_MINIMAL < 2 3180#if EV_FEATURE_API
2399 --loop_depth; 3181 --loop_depth;
2400#endif 3182#endif
3183
3184 return activecnt;
2401} 3185}
2402 3186
2403void 3187void
2404ev_unloop (EV_P_ int how) 3188ev_break (EV_P_ int how) EV_THROW
2405{ 3189{
2406 loop_done = how; 3190 loop_done = how;
2407} 3191}
2408 3192
2409void 3193void
2410ev_ref (EV_P) 3194ev_ref (EV_P) EV_THROW
2411{ 3195{
2412 ++activecnt; 3196 ++activecnt;
2413} 3197}
2414 3198
2415void 3199void
2416ev_unref (EV_P) 3200ev_unref (EV_P) EV_THROW
2417{ 3201{
2418 --activecnt; 3202 --activecnt;
2419} 3203}
2420 3204
2421void 3205void
2422ev_now_update (EV_P) 3206ev_now_update (EV_P) EV_THROW
2423{ 3207{
2424 time_update (EV_A_ 1e100); 3208 time_update (EV_A_ 1e100);
2425} 3209}
2426 3210
2427void 3211void
2428ev_suspend (EV_P) 3212ev_suspend (EV_P) EV_THROW
2429{ 3213{
2430 ev_now_update (EV_A); 3214 ev_now_update (EV_A);
2431} 3215}
2432 3216
2433void 3217void
2434ev_resume (EV_P) 3218ev_resume (EV_P) EV_THROW
2435{ 3219{
2436 ev_tstamp mn_prev = mn_now; 3220 ev_tstamp mn_prev = mn_now;
2437 3221
2438 ev_now_update (EV_A); 3222 ev_now_update (EV_A);
2439 timers_reschedule (EV_A_ mn_now - mn_prev); 3223 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2478 w->pending = 0; 3262 w->pending = 0;
2479 } 3263 }
2480} 3264}
2481 3265
2482int 3266int
2483ev_clear_pending (EV_P_ void *w) 3267ev_clear_pending (EV_P_ void *w) EV_THROW
2484{ 3268{
2485 W w_ = (W)w; 3269 W w_ = (W)w;
2486 int pending = w_->pending; 3270 int pending = w_->pending;
2487 3271
2488 if (expect_true (pending)) 3272 if (expect_true (pending))
… …
2521} 3305}
2522 3306
2523/*****************************************************************************/ 3307/*****************************************************************************/
2524 3308
2525void noinline 3309void noinline
2526ev_io_start (EV_P_ ev_io *w) 3310ev_io_start (EV_P_ ev_io *w) EV_THROW
2527{ 3311{
2528 int fd = w->fd; 3312 int fd = w->fd;
2529 3313
2530 if (expect_false (ev_is_active (w))) 3314 if (expect_false (ev_is_active (w)))
2531 return; 3315 return;
… …
2537 3321
2538 ev_start (EV_A_ (W)w, 1); 3322 ev_start (EV_A_ (W)w, 1);
2539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3323 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2540 wlist_add (&anfds[fd].head, (WL)w); 3324 wlist_add (&anfds[fd].head, (WL)w);
2541 3325
3326 /* common bug, apparently */
3327 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3328
2542 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3329 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2543 w->events &= ~EV__IOFDSET; 3330 w->events &= ~EV__IOFDSET;
2544 3331
2545 EV_FREQUENT_CHECK; 3332 EV_FREQUENT_CHECK;
2546} 3333}
2547 3334
2548void noinline 3335void noinline
2549ev_io_stop (EV_P_ ev_io *w) 3336ev_io_stop (EV_P_ ev_io *w) EV_THROW
2550{ 3337{
2551 clear_pending (EV_A_ (W)w); 3338 clear_pending (EV_A_ (W)w);
2552 if (expect_false (!ev_is_active (w))) 3339 if (expect_false (!ev_is_active (w)))
2553 return; 3340 return;
2554 3341
… …
2557 EV_FREQUENT_CHECK; 3344 EV_FREQUENT_CHECK;
2558 3345
2559 wlist_del (&anfds[w->fd].head, (WL)w); 3346 wlist_del (&anfds[w->fd].head, (WL)w);
2560 ev_stop (EV_A_ (W)w); 3347 ev_stop (EV_A_ (W)w);
2561 3348
2562 fd_change (EV_A_ w->fd, 1); 3349 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2563 3350
2564 EV_FREQUENT_CHECK; 3351 EV_FREQUENT_CHECK;
2565} 3352}
2566 3353
2567void noinline 3354void noinline
2568ev_timer_start (EV_P_ ev_timer *w) 3355ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2569{ 3356{
2570 if (expect_false (ev_is_active (w))) 3357 if (expect_false (ev_is_active (w)))
2571 return; 3358 return;
2572 3359
2573 ev_at (w) += mn_now; 3360 ev_at (w) += mn_now;
… …
2587 3374
2588 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3375 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2589} 3376}
2590 3377
2591void noinline 3378void noinline
2592ev_timer_stop (EV_P_ ev_timer *w) 3379ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2593{ 3380{
2594 clear_pending (EV_A_ (W)w); 3381 clear_pending (EV_A_ (W)w);
2595 if (expect_false (!ev_is_active (w))) 3382 if (expect_false (!ev_is_active (w)))
2596 return; 3383 return;
2597 3384
… …
2617 3404
2618 EV_FREQUENT_CHECK; 3405 EV_FREQUENT_CHECK;
2619} 3406}
2620 3407
2621void noinline 3408void noinline
2622ev_timer_again (EV_P_ ev_timer *w) 3409ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2623{ 3410{
2624 EV_FREQUENT_CHECK; 3411 EV_FREQUENT_CHECK;
3412
3413 clear_pending (EV_A_ (W)w);
2625 3414
2626 if (ev_is_active (w)) 3415 if (ev_is_active (w))
2627 { 3416 {
2628 if (w->repeat) 3417 if (w->repeat)
2629 { 3418 {
… …
2642 3431
2643 EV_FREQUENT_CHECK; 3432 EV_FREQUENT_CHECK;
2644} 3433}
2645 3434
2646ev_tstamp 3435ev_tstamp
2647ev_timer_remaining (EV_P_ ev_timer *w) 3436ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2648{ 3437{
2649 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3438 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2650} 3439}
2651 3440
2652#if EV_PERIODIC_ENABLE 3441#if EV_PERIODIC_ENABLE
2653void noinline 3442void noinline
2654ev_periodic_start (EV_P_ ev_periodic *w) 3443ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2655{ 3444{
2656 if (expect_false (ev_is_active (w))) 3445 if (expect_false (ev_is_active (w)))
2657 return; 3446 return;
2658 3447
2659 if (w->reschedule_cb) 3448 if (w->reschedule_cb)
2660 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3449 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2661 else if (w->interval) 3450 else if (w->interval)
2662 { 3451 {
2663 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3452 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2664 /* this formula differs from the one in periodic_reify because we do not always round up */ 3453 periodic_recalc (EV_A_ w);
2665 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2666 } 3454 }
2667 else 3455 else
2668 ev_at (w) = w->offset; 3456 ev_at (w) = w->offset;
2669 3457
2670 EV_FREQUENT_CHECK; 3458 EV_FREQUENT_CHECK;
… …
2680 3468
2681 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3469 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2682} 3470}
2683 3471
2684void noinline 3472void noinline
2685ev_periodic_stop (EV_P_ ev_periodic *w) 3473ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2686{ 3474{
2687 clear_pending (EV_A_ (W)w); 3475 clear_pending (EV_A_ (W)w);
2688 if (expect_false (!ev_is_active (w))) 3476 if (expect_false (!ev_is_active (w)))
2689 return; 3477 return;
2690 3478
… …
2708 3496
2709 EV_FREQUENT_CHECK; 3497 EV_FREQUENT_CHECK;
2710} 3498}
2711 3499
2712void noinline 3500void noinline
2713ev_periodic_again (EV_P_ ev_periodic *w) 3501ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2714{ 3502{
2715 /* TODO: use adjustheap and recalculation */ 3503 /* TODO: use adjustheap and recalculation */
2716 ev_periodic_stop (EV_A_ w); 3504 ev_periodic_stop (EV_A_ w);
2717 ev_periodic_start (EV_A_ w); 3505 ev_periodic_start (EV_A_ w);
2718} 3506}
… …
2720 3508
2721#ifndef SA_RESTART 3509#ifndef SA_RESTART
2722# define SA_RESTART 0 3510# define SA_RESTART 0
2723#endif 3511#endif
2724 3512
3513#if EV_SIGNAL_ENABLE
3514
2725void noinline 3515void noinline
2726ev_signal_start (EV_P_ ev_signal *w) 3516ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2727{ 3517{
2728 if (expect_false (ev_is_active (w))) 3518 if (expect_false (ev_is_active (w)))
2729 return; 3519 return;
2730 3520
2731 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3521 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2789 sa.sa_handler = ev_sighandler; 3579 sa.sa_handler = ev_sighandler;
2790 sigfillset (&sa.sa_mask); 3580 sigfillset (&sa.sa_mask);
2791 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3581 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2792 sigaction (w->signum, &sa, 0); 3582 sigaction (w->signum, &sa, 0);
2793 3583
3584 if (origflags & EVFLAG_NOSIGMASK)
3585 {
2794 sigemptyset (&sa.sa_mask); 3586 sigemptyset (&sa.sa_mask);
2795 sigaddset (&sa.sa_mask, w->signum); 3587 sigaddset (&sa.sa_mask, w->signum);
2796 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3588 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3589 }
2797#endif 3590#endif
2798 } 3591 }
2799 3592
2800 EV_FREQUENT_CHECK; 3593 EV_FREQUENT_CHECK;
2801} 3594}
2802 3595
2803void noinline 3596void noinline
2804ev_signal_stop (EV_P_ ev_signal *w) 3597ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2805{ 3598{
2806 clear_pending (EV_A_ (W)w); 3599 clear_pending (EV_A_ (W)w);
2807 if (expect_false (!ev_is_active (w))) 3600 if (expect_false (!ev_is_active (w)))
2808 return; 3601 return;
2809 3602
… …
2835 } 3628 }
2836 3629
2837 EV_FREQUENT_CHECK; 3630 EV_FREQUENT_CHECK;
2838} 3631}
2839 3632
3633#endif
3634
3635#if EV_CHILD_ENABLE
3636
2840void 3637void
2841ev_child_start (EV_P_ ev_child *w) 3638ev_child_start (EV_P_ ev_child *w) EV_THROW
2842{ 3639{
2843#if EV_MULTIPLICITY 3640#if EV_MULTIPLICITY
2844 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3641 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2845#endif 3642#endif
2846 if (expect_false (ev_is_active (w))) 3643 if (expect_false (ev_is_active (w)))
2847 return; 3644 return;
2848 3645
2849 EV_FREQUENT_CHECK; 3646 EV_FREQUENT_CHECK;
2850 3647
2851 ev_start (EV_A_ (W)w, 1); 3648 ev_start (EV_A_ (W)w, 1);
2852 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3649 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2853 3650
2854 EV_FREQUENT_CHECK; 3651 EV_FREQUENT_CHECK;
2855} 3652}
2856 3653
2857void 3654void
2858ev_child_stop (EV_P_ ev_child *w) 3655ev_child_stop (EV_P_ ev_child *w) EV_THROW
2859{ 3656{
2860 clear_pending (EV_A_ (W)w); 3657 clear_pending (EV_A_ (W)w);
2861 if (expect_false (!ev_is_active (w))) 3658 if (expect_false (!ev_is_active (w)))
2862 return; 3659 return;
2863 3660
2864 EV_FREQUENT_CHECK; 3661 EV_FREQUENT_CHECK;
2865 3662
2866 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3663 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2867 ev_stop (EV_A_ (W)w); 3664 ev_stop (EV_A_ (W)w);
2868 3665
2869 EV_FREQUENT_CHECK; 3666 EV_FREQUENT_CHECK;
2870} 3667}
3668
3669#endif
2871 3670
2872#if EV_STAT_ENABLE 3671#if EV_STAT_ENABLE
2873 3672
2874# ifdef _WIN32 3673# ifdef _WIN32
2875# undef lstat 3674# undef lstat
… …
2936 if (!pend || pend == path) 3735 if (!pend || pend == path)
2937 break; 3736 break;
2938 3737
2939 *pend = 0; 3738 *pend = 0;
2940 w->wd = inotify_add_watch (fs_fd, path, mask); 3739 w->wd = inotify_add_watch (fs_fd, path, mask);
2941 } 3740 }
2942 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3741 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2943 } 3742 }
2944 } 3743 }
2945 3744
2946 if (w->wd >= 0) 3745 if (w->wd >= 0)
2947 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3746 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2948 3747
2949 /* now re-arm timer, if required */ 3748 /* now re-arm timer, if required */
2950 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3749 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2951 ev_timer_again (EV_A_ &w->timer); 3750 ev_timer_again (EV_A_ &w->timer);
2952 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3751 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2960 3759
2961 if (wd < 0) 3760 if (wd < 0)
2962 return; 3761 return;
2963 3762
2964 w->wd = -2; 3763 w->wd = -2;
2965 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3764 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2966 wlist_del (&fs_hash [slot].head, (WL)w); 3765 wlist_del (&fs_hash [slot].head, (WL)w);
2967 3766
2968 /* remove this watcher, if others are watching it, they will rearm */ 3767 /* remove this watcher, if others are watching it, they will rearm */
2969 inotify_rm_watch (fs_fd, wd); 3768 inotify_rm_watch (fs_fd, wd);
2970} 3769}
… …
2972static void noinline 3771static void noinline
2973infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3772infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2974{ 3773{
2975 if (slot < 0) 3774 if (slot < 0)
2976 /* overflow, need to check for all hash slots */ 3775 /* overflow, need to check for all hash slots */
2977 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3776 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2978 infy_wd (EV_A_ slot, wd, ev); 3777 infy_wd (EV_A_ slot, wd, ev);
2979 else 3778 else
2980 { 3779 {
2981 WL w_; 3780 WL w_;
2982 3781
2983 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3782 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2984 { 3783 {
2985 ev_stat *w = (ev_stat *)w_; 3784 ev_stat *w = (ev_stat *)w_;
2986 w_ = w_->next; /* lets us remove this watcher and all before it */ 3785 w_ = w_->next; /* lets us remove this watcher and all before it */
2987 3786
2988 if (w->wd == wd || wd == -1) 3787 if (w->wd == wd || wd == -1)
2989 { 3788 {
2990 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3789 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2991 { 3790 {
2992 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3791 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2993 w->wd = -1; 3792 w->wd = -1;
2994 infy_add (EV_A_ w); /* re-add, no matter what */ 3793 infy_add (EV_A_ w); /* re-add, no matter what */
2995 } 3794 }
2996 3795
2997 stat_timer_cb (EV_A_ &w->timer, 0); 3796 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3013 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3812 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3014 ofs += sizeof (struct inotify_event) + ev->len; 3813 ofs += sizeof (struct inotify_event) + ev->len;
3015 } 3814 }
3016} 3815}
3017 3816
3018inline_size unsigned int
3019ev_linux_version (void)
3020{
3021 struct utsname buf;
3022 unsigned int v;
3023 int i;
3024 char *p = buf.release;
3025
3026 if (uname (&buf))
3027 return 0;
3028
3029 for (i = 3+1; --i; )
3030 {
3031 unsigned int c = 0;
3032
3033 for (;;)
3034 {
3035 if (*p >= '0' && *p <= '9')
3036 c = c * 10 + *p++ - '0';
3037 else
3038 {
3039 p += *p == '.';
3040 break;
3041 }
3042 }
3043
3044 v = (v << 8) | c;
3045 }
3046
3047 return v;
3048}
3049
3050inline_size void 3817inline_size void ecb_cold
3051ev_check_2625 (EV_P) 3818ev_check_2625 (EV_P)
3052{ 3819{
3053 /* kernels < 2.6.25 are borked 3820 /* kernels < 2.6.25 are borked
3054 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3821 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3055 */ 3822 */
… …
3060} 3827}
3061 3828
3062inline_size int 3829inline_size int
3063infy_newfd (void) 3830infy_newfd (void)
3064{ 3831{
3065#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3832#if defined IN_CLOEXEC && defined IN_NONBLOCK
3066 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3833 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3067 if (fd >= 0) 3834 if (fd >= 0)
3068 return fd; 3835 return fd;
3069#endif 3836#endif
3070 return inotify_init (); 3837 return inotify_init ();
… …
3111 ev_io_set (&fs_w, fs_fd, EV_READ); 3878 ev_io_set (&fs_w, fs_fd, EV_READ);
3112 ev_io_start (EV_A_ &fs_w); 3879 ev_io_start (EV_A_ &fs_w);
3113 ev_unref (EV_A); 3880 ev_unref (EV_A);
3114 } 3881 }
3115 3882
3116 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3883 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3117 { 3884 {
3118 WL w_ = fs_hash [slot].head; 3885 WL w_ = fs_hash [slot].head;
3119 fs_hash [slot].head = 0; 3886 fs_hash [slot].head = 0;
3120 3887
3121 while (w_) 3888 while (w_)
… …
3145#else 3912#else
3146# define EV_LSTAT(p,b) lstat (p, b) 3913# define EV_LSTAT(p,b) lstat (p, b)
3147#endif 3914#endif
3148 3915
3149void 3916void
3150ev_stat_stat (EV_P_ ev_stat *w) 3917ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3151{ 3918{
3152 if (lstat (w->path, &w->attr) < 0) 3919 if (lstat (w->path, &w->attr) < 0)
3153 w->attr.st_nlink = 0; 3920 w->attr.st_nlink = 0;
3154 else if (!w->attr.st_nlink) 3921 else if (!w->attr.st_nlink)
3155 w->attr.st_nlink = 1; 3922 w->attr.st_nlink = 1;
… …
3194 ev_feed_event (EV_A_ w, EV_STAT); 3961 ev_feed_event (EV_A_ w, EV_STAT);
3195 } 3962 }
3196} 3963}
3197 3964
3198void 3965void
3199ev_stat_start (EV_P_ ev_stat *w) 3966ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3200{ 3967{
3201 if (expect_false (ev_is_active (w))) 3968 if (expect_false (ev_is_active (w)))
3202 return; 3969 return;
3203 3970
3204 ev_stat_stat (EV_A_ w); 3971 ev_stat_stat (EV_A_ w);
… …
3225 3992
3226 EV_FREQUENT_CHECK; 3993 EV_FREQUENT_CHECK;
3227} 3994}
3228 3995
3229void 3996void
3230ev_stat_stop (EV_P_ ev_stat *w) 3997ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3231{ 3998{
3232 clear_pending (EV_A_ (W)w); 3999 clear_pending (EV_A_ (W)w);
3233 if (expect_false (!ev_is_active (w))) 4000 if (expect_false (!ev_is_active (w)))
3234 return; 4001 return;
3235 4002
… …
3251} 4018}
3252#endif 4019#endif
3253 4020
3254#if EV_IDLE_ENABLE 4021#if EV_IDLE_ENABLE
3255void 4022void
3256ev_idle_start (EV_P_ ev_idle *w) 4023ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3257{ 4024{
3258 if (expect_false (ev_is_active (w))) 4025 if (expect_false (ev_is_active (w)))
3259 return; 4026 return;
3260 4027
3261 pri_adjust (EV_A_ (W)w); 4028 pri_adjust (EV_A_ (W)w);
… …
3274 4041
3275 EV_FREQUENT_CHECK; 4042 EV_FREQUENT_CHECK;
3276} 4043}
3277 4044
3278void 4045void
3279ev_idle_stop (EV_P_ ev_idle *w) 4046ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3280{ 4047{
3281 clear_pending (EV_A_ (W)w); 4048 clear_pending (EV_A_ (W)w);
3282 if (expect_false (!ev_is_active (w))) 4049 if (expect_false (!ev_is_active (w)))
3283 return; 4050 return;
3284 4051
… …
3296 4063
3297 EV_FREQUENT_CHECK; 4064 EV_FREQUENT_CHECK;
3298} 4065}
3299#endif 4066#endif
3300 4067
4068#if EV_PREPARE_ENABLE
3301void 4069void
3302ev_prepare_start (EV_P_ ev_prepare *w) 4070ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3303{ 4071{
3304 if (expect_false (ev_is_active (w))) 4072 if (expect_false (ev_is_active (w)))
3305 return; 4073 return;
3306 4074
3307 EV_FREQUENT_CHECK; 4075 EV_FREQUENT_CHECK;
… …
3312 4080
3313 EV_FREQUENT_CHECK; 4081 EV_FREQUENT_CHECK;
3314} 4082}
3315 4083
3316void 4084void
3317ev_prepare_stop (EV_P_ ev_prepare *w) 4085ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3318{ 4086{
3319 clear_pending (EV_A_ (W)w); 4087 clear_pending (EV_A_ (W)w);
3320 if (expect_false (!ev_is_active (w))) 4088 if (expect_false (!ev_is_active (w)))
3321 return; 4089 return;
3322 4090
… …
3331 4099
3332 ev_stop (EV_A_ (W)w); 4100 ev_stop (EV_A_ (W)w);
3333 4101
3334 EV_FREQUENT_CHECK; 4102 EV_FREQUENT_CHECK;
3335} 4103}
4104#endif
3336 4105
4106#if EV_CHECK_ENABLE
3337void 4107void
3338ev_check_start (EV_P_ ev_check *w) 4108ev_check_start (EV_P_ ev_check *w) EV_THROW
3339{ 4109{
3340 if (expect_false (ev_is_active (w))) 4110 if (expect_false (ev_is_active (w)))
3341 return; 4111 return;
3342 4112
3343 EV_FREQUENT_CHECK; 4113 EV_FREQUENT_CHECK;
… …
3348 4118
3349 EV_FREQUENT_CHECK; 4119 EV_FREQUENT_CHECK;
3350} 4120}
3351 4121
3352void 4122void
3353ev_check_stop (EV_P_ ev_check *w) 4123ev_check_stop (EV_P_ ev_check *w) EV_THROW
3354{ 4124{
3355 clear_pending (EV_A_ (W)w); 4125 clear_pending (EV_A_ (W)w);
3356 if (expect_false (!ev_is_active (w))) 4126 if (expect_false (!ev_is_active (w)))
3357 return; 4127 return;
3358 4128
… …
3367 4137
3368 ev_stop (EV_A_ (W)w); 4138 ev_stop (EV_A_ (W)w);
3369 4139
3370 EV_FREQUENT_CHECK; 4140 EV_FREQUENT_CHECK;
3371} 4141}
4142#endif
3372 4143
3373#if EV_EMBED_ENABLE 4144#if EV_EMBED_ENABLE
3374void noinline 4145void noinline
3375ev_embed_sweep (EV_P_ ev_embed *w) 4146ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3376{ 4147{
3377 ev_loop (w->other, EVLOOP_NONBLOCK); 4148 ev_run (w->other, EVRUN_NOWAIT);
3378} 4149}
3379 4150
3380static void 4151static void
3381embed_io_cb (EV_P_ ev_io *io, int revents) 4152embed_io_cb (EV_P_ ev_io *io, int revents)
3382{ 4153{
3383 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4154 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3384 4155
3385 if (ev_cb (w)) 4156 if (ev_cb (w))
3386 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4157 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3387 else 4158 else
3388 ev_loop (w->other, EVLOOP_NONBLOCK); 4159 ev_run (w->other, EVRUN_NOWAIT);
3389} 4160}
3390 4161
3391static void 4162static void
3392embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4163embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3393{ 4164{
… …
3397 EV_P = w->other; 4168 EV_P = w->other;
3398 4169
3399 while (fdchangecnt) 4170 while (fdchangecnt)
3400 { 4171 {
3401 fd_reify (EV_A); 4172 fd_reify (EV_A);
3402 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4173 ev_run (EV_A_ EVRUN_NOWAIT);
3403 } 4174 }
3404 } 4175 }
3405} 4176}
3406 4177
3407static void 4178static void
… …
3413 4184
3414 { 4185 {
3415 EV_P = w->other; 4186 EV_P = w->other;
3416 4187
3417 ev_loop_fork (EV_A); 4188 ev_loop_fork (EV_A);
3418 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4189 ev_run (EV_A_ EVRUN_NOWAIT);
3419 } 4190 }
3420 4191
3421 ev_embed_start (EV_A_ w); 4192 ev_embed_start (EV_A_ w);
3422} 4193}
3423 4194
… …
3428 ev_idle_stop (EV_A_ idle); 4199 ev_idle_stop (EV_A_ idle);
3429} 4200}
3430#endif 4201#endif
3431 4202
3432void 4203void
3433ev_embed_start (EV_P_ ev_embed *w) 4204ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3434{ 4205{
3435 if (expect_false (ev_is_active (w))) 4206 if (expect_false (ev_is_active (w)))
3436 return; 4207 return;
3437 4208
3438 { 4209 {
… …
3459 4230
3460 EV_FREQUENT_CHECK; 4231 EV_FREQUENT_CHECK;
3461} 4232}
3462 4233
3463void 4234void
3464ev_embed_stop (EV_P_ ev_embed *w) 4235ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3465{ 4236{
3466 clear_pending (EV_A_ (W)w); 4237 clear_pending (EV_A_ (W)w);
3467 if (expect_false (!ev_is_active (w))) 4238 if (expect_false (!ev_is_active (w)))
3468 return; 4239 return;
3469 4240
… …
3479} 4250}
3480#endif 4251#endif
3481 4252
3482#if EV_FORK_ENABLE 4253#if EV_FORK_ENABLE
3483void 4254void
3484ev_fork_start (EV_P_ ev_fork *w) 4255ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3485{ 4256{
3486 if (expect_false (ev_is_active (w))) 4257 if (expect_false (ev_is_active (w)))
3487 return; 4258 return;
3488 4259
3489 EV_FREQUENT_CHECK; 4260 EV_FREQUENT_CHECK;
… …
3494 4265
3495 EV_FREQUENT_CHECK; 4266 EV_FREQUENT_CHECK;
3496} 4267}
3497 4268
3498void 4269void
3499ev_fork_stop (EV_P_ ev_fork *w) 4270ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3500{ 4271{
3501 clear_pending (EV_A_ (W)w); 4272 clear_pending (EV_A_ (W)w);
3502 if (expect_false (!ev_is_active (w))) 4273 if (expect_false (!ev_is_active (w)))
3503 return; 4274 return;
3504 4275
… …
3515 4286
3516 EV_FREQUENT_CHECK; 4287 EV_FREQUENT_CHECK;
3517} 4288}
3518#endif 4289#endif
3519 4290
4291#if EV_CLEANUP_ENABLE
4292void
4293ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4294{
4295 if (expect_false (ev_is_active (w)))
4296 return;
4297
4298 EV_FREQUENT_CHECK;
4299
4300 ev_start (EV_A_ (W)w, ++cleanupcnt);
4301 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4302 cleanups [cleanupcnt - 1] = w;
4303
4304 /* cleanup watchers should never keep a refcount on the loop */
4305 ev_unref (EV_A);
4306 EV_FREQUENT_CHECK;
4307}
4308
4309void
4310ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4311{
4312 clear_pending (EV_A_ (W)w);
4313 if (expect_false (!ev_is_active (w)))
4314 return;
4315
4316 EV_FREQUENT_CHECK;
4317 ev_ref (EV_A);
4318
4319 {
4320 int active = ev_active (w);
4321
4322 cleanups [active - 1] = cleanups [--cleanupcnt];
4323 ev_active (cleanups [active - 1]) = active;
4324 }
4325
4326 ev_stop (EV_A_ (W)w);
4327
4328 EV_FREQUENT_CHECK;
4329}
4330#endif
4331
3520#if EV_ASYNC_ENABLE 4332#if EV_ASYNC_ENABLE
3521void 4333void
3522ev_async_start (EV_P_ ev_async *w) 4334ev_async_start (EV_P_ ev_async *w) EV_THROW
3523{ 4335{
3524 if (expect_false (ev_is_active (w))) 4336 if (expect_false (ev_is_active (w)))
3525 return; 4337 return;
4338
4339 w->sent = 0;
3526 4340
3527 evpipe_init (EV_A); 4341 evpipe_init (EV_A);
3528 4342
3529 EV_FREQUENT_CHECK; 4343 EV_FREQUENT_CHECK;
3530 4344
… …
3534 4348
3535 EV_FREQUENT_CHECK; 4349 EV_FREQUENT_CHECK;
3536} 4350}
3537 4351
3538void 4352void
3539ev_async_stop (EV_P_ ev_async *w) 4353ev_async_stop (EV_P_ ev_async *w) EV_THROW
3540{ 4354{
3541 clear_pending (EV_A_ (W)w); 4355 clear_pending (EV_A_ (W)w);
3542 if (expect_false (!ev_is_active (w))) 4356 if (expect_false (!ev_is_active (w)))
3543 return; 4357 return;
3544 4358
… …
3555 4369
3556 EV_FREQUENT_CHECK; 4370 EV_FREQUENT_CHECK;
3557} 4371}
3558 4372
3559void 4373void
3560ev_async_send (EV_P_ ev_async *w) 4374ev_async_send (EV_P_ ev_async *w) EV_THROW
3561{ 4375{
3562 w->sent = 1; 4376 w->sent = 1;
3563 evpipe_write (EV_A_ &async_pending); 4377 evpipe_write (EV_A_ &async_pending);
3564} 4378}
3565#endif 4379#endif
… …
3602 4416
3603 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4417 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3604} 4418}
3605 4419
3606void 4420void
3607ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4421ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3608{ 4422{
3609 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4423 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3610 4424
3611 if (expect_false (!once)) 4425 if (expect_false (!once))
3612 { 4426 {
3613 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4427 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3614 return; 4428 return;
3615 } 4429 }
3616 4430
3617 once->cb = cb; 4431 once->cb = cb;
3618 once->arg = arg; 4432 once->arg = arg;
… …
3633} 4447}
3634 4448
3635/*****************************************************************************/ 4449/*****************************************************************************/
3636 4450
3637#if EV_WALK_ENABLE 4451#if EV_WALK_ENABLE
3638void 4452void ecb_cold
3639ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4453ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3640{ 4454{
3641 int i, j; 4455 int i, j;
3642 ev_watcher_list *wl, *wn; 4456 ev_watcher_list *wl, *wn;
3643 4457
3644 if (types & (EV_IO | EV_EMBED)) 4458 if (types & (EV_IO | EV_EMBED))
… …
3687 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4501 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3688#endif 4502#endif
3689 4503
3690#if EV_IDLE_ENABLE 4504#if EV_IDLE_ENABLE
3691 if (types & EV_IDLE) 4505 if (types & EV_IDLE)
3692 for (j = NUMPRI; i--; ) 4506 for (j = NUMPRI; j--; )
3693 for (i = idlecnt [j]; i--; ) 4507 for (i = idlecnt [j]; i--; )
3694 cb (EV_A_ EV_IDLE, idles [j][i]); 4508 cb (EV_A_ EV_IDLE, idles [j][i]);
3695#endif 4509#endif
3696 4510
3697#if EV_FORK_ENABLE 4511#if EV_FORK_ENABLE
… …
3705 if (types & EV_ASYNC) 4519 if (types & EV_ASYNC)
3706 for (i = asynccnt; i--; ) 4520 for (i = asynccnt; i--; )
3707 cb (EV_A_ EV_ASYNC, asyncs [i]); 4521 cb (EV_A_ EV_ASYNC, asyncs [i]);
3708#endif 4522#endif
3709 4523
4524#if EV_PREPARE_ENABLE
3710 if (types & EV_PREPARE) 4525 if (types & EV_PREPARE)
3711 for (i = preparecnt; i--; ) 4526 for (i = preparecnt; i--; )
3712#if EV_EMBED_ENABLE 4527# if EV_EMBED_ENABLE
3713 if (ev_cb (prepares [i]) != embed_prepare_cb) 4528 if (ev_cb (prepares [i]) != embed_prepare_cb)
3714#endif 4529# endif
3715 cb (EV_A_ EV_PREPARE, prepares [i]); 4530 cb (EV_A_ EV_PREPARE, prepares [i]);
4531#endif
3716 4532
4533#if EV_CHECK_ENABLE
3717 if (types & EV_CHECK) 4534 if (types & EV_CHECK)
3718 for (i = checkcnt; i--; ) 4535 for (i = checkcnt; i--; )
3719 cb (EV_A_ EV_CHECK, checks [i]); 4536 cb (EV_A_ EV_CHECK, checks [i]);
4537#endif
3720 4538
4539#if EV_SIGNAL_ENABLE
3721 if (types & EV_SIGNAL) 4540 if (types & EV_SIGNAL)
3722 for (i = 0; i < EV_NSIG - 1; ++i) 4541 for (i = 0; i < EV_NSIG - 1; ++i)
3723 for (wl = signals [i].head; wl; ) 4542 for (wl = signals [i].head; wl; )
3724 { 4543 {
3725 wn = wl->next; 4544 wn = wl->next;
3726 cb (EV_A_ EV_SIGNAL, wl); 4545 cb (EV_A_ EV_SIGNAL, wl);
3727 wl = wn; 4546 wl = wn;
3728 } 4547 }
4548#endif
3729 4549
4550#if EV_CHILD_ENABLE
3730 if (types & EV_CHILD) 4551 if (types & EV_CHILD)
3731 for (i = EV_PID_HASHSIZE; i--; ) 4552 for (i = (EV_PID_HASHSIZE); i--; )
3732 for (wl = childs [i]; wl; ) 4553 for (wl = childs [i]; wl; )
3733 { 4554 {
3734 wn = wl->next; 4555 wn = wl->next;
3735 cb (EV_A_ EV_CHILD, wl); 4556 cb (EV_A_ EV_CHILD, wl);
3736 wl = wn; 4557 wl = wn;
3737 } 4558 }
4559#endif
3738/* EV_STAT 0x00001000 /* stat data changed */ 4560/* EV_STAT 0x00001000 /* stat data changed */
3739/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4561/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3740} 4562}
3741#endif 4563#endif
3742 4564
3743#if EV_MULTIPLICITY 4565#if EV_MULTIPLICITY
3744 #include "ev_wrap.h" 4566 #include "ev_wrap.h"
3745#endif 4567#endif
3746 4568
3747#ifdef __cplusplus
3748}
3749#endif
3750

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