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Comparing libev/ev.c (file contents):
Revision 1.335 by root, Tue Mar 9 09:02:03 2010 UTC vs.
Revision 1.440 by root, Tue May 29 21:37:14 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{
573#if __GLIBC__ 1193#if __GLIBC__
574 return realloc (ptr, size); 1194 return realloc (ptr, size);
575#else 1195#else
576 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
… …
584 free (ptr); 1204 free (ptr);
585 return 0; 1205 return 0;
586#endif 1206#endif
587} 1207}
588 1208
589static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1209static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
590 1210
591void 1211void ecb_cold
592ev_set_allocator (void *(*cb)(void *ptr, long size)) 1212ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
593{ 1213{
594 alloc = cb; 1214 alloc = cb;
595} 1215}
596 1216
597inline_speed void * 1217inline_speed void *
… …
600 ptr = alloc (ptr, size); 1220 ptr = alloc (ptr, size);
601 1221
602 if (!ptr && size) 1222 if (!ptr && size)
603 { 1223 {
604#if EV_AVOID_STDIO 1224#if EV_AVOID_STDIO
605 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1225 ev_printerr ("(libev) memory allocation failed, aborting.\n");
606#else 1226#else
607 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1227 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
608#endif 1228#endif
609 abort (); 1229 abort ();
610 } 1230 }
611 1231
612 return ptr; 1232 return ptr;
… …
629 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 */
630 unsigned char unused; 1250 unsigned char unused;
631#if EV_USE_EPOLL 1251#if EV_USE_EPOLL
632 unsigned int egen; /* generation counter to counter epoll bugs */ 1252 unsigned int egen; /* generation counter to counter epoll bugs */
633#endif 1253#endif
634#if EV_SELECT_IS_WINSOCKET 1254#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
635 SOCKET handle; 1255 SOCKET handle;
1256#endif
1257#if EV_USE_IOCP
1258 OVERLAPPED or, ow;
636#endif 1259#endif
637} ANFD; 1260} ANFD;
638 1261
639/* stores the pending event set for a given watcher */ 1262/* stores the pending event set for a given watcher */
640typedef struct 1263typedef struct
… …
682 #undef VAR 1305 #undef VAR
683 }; 1306 };
684 #include "ev_wrap.h" 1307 #include "ev_wrap.h"
685 1308
686 static struct ev_loop default_loop_struct; 1309 static struct ev_loop default_loop_struct;
687 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 */
688 1311
689#else 1312#else
690 1313
691 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 */
692 #define VAR(name,decl) static decl; 1315 #define VAR(name,decl) static decl;
693 #include "ev_vars.h" 1316 #include "ev_vars.h"
694 #undef VAR 1317 #undef VAR
695 1318
696 static int ev_default_loop_ptr; 1319 static int ev_default_loop_ptr;
697 1320
698#endif 1321#endif
699 1322
700#if EV_MINIMAL < 2 1323#if EV_FEATURE_API
701# 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)
702# 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)
703# define EV_INVOKE_PENDING invoke_cb (EV_A) 1326# define EV_INVOKE_PENDING invoke_cb (EV_A)
704#else 1327#else
705# define EV_RELEASE_CB (void)0 1328# define EV_RELEASE_CB (void)0
706# define EV_ACQUIRE_CB (void)0 1329# define EV_ACQUIRE_CB (void)0
707# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1330# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
708#endif 1331#endif
709 1332
710#define EVUNLOOP_RECURSE 0x80 1333#define EVBREAK_RECURSE 0x80
711 1334
712/*****************************************************************************/ 1335/*****************************************************************************/
713 1336
714#ifndef EV_HAVE_EV_TIME 1337#ifndef EV_HAVE_EV_TIME
715ev_tstamp 1338ev_tstamp
716ev_time (void) 1339ev_time (void) EV_THROW
717{ 1340{
718#if EV_USE_REALTIME 1341#if EV_USE_REALTIME
719 if (expect_true (have_realtime)) 1342 if (expect_true (have_realtime))
720 { 1343 {
721 struct timespec ts; 1344 struct timespec ts;
… …
745 return ev_time (); 1368 return ev_time ();
746} 1369}
747 1370
748#if EV_MULTIPLICITY 1371#if EV_MULTIPLICITY
749ev_tstamp 1372ev_tstamp
750ev_now (EV_P) 1373ev_now (EV_P) EV_THROW
751{ 1374{
752 return ev_rt_now; 1375 return ev_rt_now;
753} 1376}
754#endif 1377#endif
755 1378
756void 1379void
757ev_sleep (ev_tstamp delay) 1380ev_sleep (ev_tstamp delay) EV_THROW
758{ 1381{
759 if (delay > 0.) 1382 if (delay > 0.)
760 { 1383 {
761#if EV_USE_NANOSLEEP 1384#if EV_USE_NANOSLEEP
762 struct timespec ts; 1385 struct timespec ts;
763 1386
764 ts.tv_sec = (time_t)delay; 1387 EV_TS_SET (ts, delay);
765 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
766
767 nanosleep (&ts, 0); 1388 nanosleep (&ts, 0);
768#elif defined(_WIN32) 1389#elif defined _WIN32
769 Sleep ((unsigned long)(delay * 1e3)); 1390 Sleep ((unsigned long)(delay * 1e3));
770#else 1391#else
771 struct timeval tv; 1392 struct timeval tv;
772 1393
773 tv.tv_sec = (time_t)delay;
774 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
775
776 /* 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 */
777 /* something not guaranteed by newer posix versions, but guaranteed */ 1395 /* something not guaranteed by newer posix versions, but guaranteed */
778 /* by older ones */ 1396 /* by older ones */
1397 EV_TV_SET (tv, delay);
779 select (0, 0, 0, 0, &tv); 1398 select (0, 0, 0, 0, &tv);
780#endif 1399#endif
781 } 1400 }
782} 1401}
783 1402
784/*****************************************************************************/ 1403/*****************************************************************************/
785 1404
786#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 */
787 1406
788/* find a suitable new size for the given array, */ 1407/* find a suitable new size for the given array, */
789/* hopefully by rounding to a ncie-to-malloc size */ 1408/* hopefully by rounding to a nice-to-malloc size */
790inline_size int 1409inline_size int
791array_nextsize (int elem, int cur, int cnt) 1410array_nextsize (int elem, int cur, int cnt)
792{ 1411{
793 int ncur = cur + 1; 1412 int ncur = cur + 1;
794 1413
795 do 1414 do
796 ncur <<= 1; 1415 ncur <<= 1;
797 while (cnt > ncur); 1416 while (cnt > ncur);
798 1417
799 /* 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 */
800 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1419 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
801 { 1420 {
802 ncur *= elem; 1421 ncur *= elem;
803 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);
804 ncur = ncur - sizeof (void *) * 4; 1423 ncur = ncur - sizeof (void *) * 4;
… …
806 } 1425 }
807 1426
808 return ncur; 1427 return ncur;
809} 1428}
810 1429
811static noinline void * 1430static void * noinline ecb_cold
812array_realloc (int elem, void *base, int *cur, int cnt) 1431array_realloc (int elem, void *base, int *cur, int cnt)
813{ 1432{
814 *cur = array_nextsize (elem, *cur, cnt); 1433 *cur = array_nextsize (elem, *cur, cnt);
815 return ev_realloc (base, elem * *cur); 1434 return ev_realloc (base, elem * *cur);
816} 1435}
… …
819 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1438 memset ((void *)(base), 0, sizeof (*(base)) * (count))
820 1439
821#define array_needsize(type,base,cur,cnt,init) \ 1440#define array_needsize(type,base,cur,cnt,init) \
822 if (expect_false ((cnt) > (cur))) \ 1441 if (expect_false ((cnt) > (cur))) \
823 { \ 1442 { \
824 int ocur_ = (cur); \ 1443 int ecb_unused ocur_ = (cur); \
825 (base) = (type *)array_realloc \ 1444 (base) = (type *)array_realloc \
826 (sizeof (type), (base), &(cur), (cnt)); \ 1445 (sizeof (type), (base), &(cur), (cnt)); \
827 init ((base) + (ocur_), (cur) - ocur_); \ 1446 init ((base) + (ocur_), (cur) - ocur_); \
828 } 1447 }
829 1448
… …
847pendingcb (EV_P_ ev_prepare *w, int revents) 1466pendingcb (EV_P_ ev_prepare *w, int revents)
848{ 1467{
849} 1468}
850 1469
851void noinline 1470void noinline
852ev_feed_event (EV_P_ void *w, int revents) 1471ev_feed_event (EV_P_ void *w, int revents) EV_THROW
853{ 1472{
854 W w_ = (W)w; 1473 W w_ = (W)w;
855 int pri = ABSPRI (w_); 1474 int pri = ABSPRI (w_);
856 1475
857 if (expect_false (w_->pending)) 1476 if (expect_false (w_->pending))
… …
861 w_->pending = ++pendingcnt [pri]; 1480 w_->pending = ++pendingcnt [pri];
862 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1481 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
863 pendings [pri][w_->pending - 1].w = w_; 1482 pendings [pri][w_->pending - 1].w = w_;
864 pendings [pri][w_->pending - 1].events = revents; 1483 pendings [pri][w_->pending - 1].events = revents;
865 } 1484 }
1485
1486 pendingpri = NUMPRI - 1;
866} 1487}
867 1488
868inline_speed void 1489inline_speed void
869feed_reverse (EV_P_ W w) 1490feed_reverse (EV_P_ W w)
870{ 1491{
… …
890} 1511}
891 1512
892/*****************************************************************************/ 1513/*****************************************************************************/
893 1514
894inline_speed void 1515inline_speed void
895fd_event_nc (EV_P_ int fd, int revents) 1516fd_event_nocheck (EV_P_ int fd, int revents)
896{ 1517{
897 ANFD *anfd = anfds + fd; 1518 ANFD *anfd = anfds + fd;
898 ev_io *w; 1519 ev_io *w;
899 1520
900 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)
… …
912fd_event (EV_P_ int fd, int revents) 1533fd_event (EV_P_ int fd, int revents)
913{ 1534{
914 ANFD *anfd = anfds + fd; 1535 ANFD *anfd = anfds + fd;
915 1536
916 if (expect_true (!anfd->reify)) 1537 if (expect_true (!anfd->reify))
917 fd_event_nc (EV_A_ fd, revents); 1538 fd_event_nocheck (EV_A_ fd, revents);
918} 1539}
919 1540
920void 1541void
921ev_feed_fd_event (EV_P_ int fd, int revents) 1542ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
922{ 1543{
923 if (fd >= 0 && fd < anfdmax) 1544 if (fd >= 0 && fd < anfdmax)
924 fd_event_nc (EV_A_ fd, revents); 1545 fd_event_nocheck (EV_A_ fd, revents);
925} 1546}
926 1547
927/* make sure the external fd watch events are in-sync */ 1548/* make sure the external fd watch events are in-sync */
928/* with the kernel/libev internal state */ 1549/* with the kernel/libev internal state */
929inline_size void 1550inline_size void
930fd_reify (EV_P) 1551fd_reify (EV_P)
931{ 1552{
932 int i; 1553 int i;
933 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
934 for (i = 0; i < fdchangecnt; ++i) 1580 for (i = 0; i < fdchangecnt; ++i)
935 { 1581 {
936 int fd = fdchanges [i]; 1582 int fd = fdchanges [i];
937 ANFD *anfd = anfds + fd; 1583 ANFD *anfd = anfds + fd;
938 ev_io *w; 1584 ev_io *w;
939 1585
940 unsigned char events = 0; 1586 unsigned char o_events = anfd->events;
1587 unsigned char o_reify = anfd->reify;
941 1588
942 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1589 anfd->reify = 0;
943 events |= (unsigned char)w->events;
944 1590
945#if EV_SELECT_IS_WINSOCKET 1591 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
946 if (events)
947 { 1592 {
948 unsigned long arg; 1593 anfd->events = 0;
949 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1594
950 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 |= */
951 } 1600 }
952#endif
953 1601
954 { 1602 if (o_reify & EV__IOFDSET)
955 unsigned char o_events = anfd->events;
956 unsigned char o_reify = anfd->reify;
957
958 anfd->reify = 0;
959 anfd->events = events;
960
961 if (o_events != events || o_reify & EV__IOFDSET)
962 backend_modify (EV_A_ fd, o_events, events); 1603 backend_modify (EV_A_ fd, o_events, anfd->events);
963 }
964 } 1604 }
965 1605
966 fdchangecnt = 0; 1606 fdchangecnt = 0;
967} 1607}
968 1608
… …
980 fdchanges [fdchangecnt - 1] = fd; 1620 fdchanges [fdchangecnt - 1] = fd;
981 } 1621 }
982} 1622}
983 1623
984/* 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 */
985inline_speed void 1625inline_speed void ecb_cold
986fd_kill (EV_P_ int fd) 1626fd_kill (EV_P_ int fd)
987{ 1627{
988 ev_io *w; 1628 ev_io *w;
989 1629
990 while ((w = (ev_io *)anfds [fd].head)) 1630 while ((w = (ev_io *)anfds [fd].head))
… …
992 ev_io_stop (EV_A_ w); 1632 ev_io_stop (EV_A_ w);
993 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);
994 } 1634 }
995} 1635}
996 1636
997/* check whether the given fd is atcually valid, for error recovery */ 1637/* check whether the given fd is actually valid, for error recovery */
998inline_size int 1638inline_size int ecb_cold
999fd_valid (int fd) 1639fd_valid (int fd)
1000{ 1640{
1001#ifdef _WIN32 1641#ifdef _WIN32
1002 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1642 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1003#else 1643#else
1004 return fcntl (fd, F_GETFD) != -1; 1644 return fcntl (fd, F_GETFD) != -1;
1005#endif 1645#endif
1006} 1646}
1007 1647
1008/* called on EBADF to verify fds */ 1648/* called on EBADF to verify fds */
1009static void noinline 1649static void noinline ecb_cold
1010fd_ebadf (EV_P) 1650fd_ebadf (EV_P)
1011{ 1651{
1012 int fd; 1652 int fd;
1013 1653
1014 for (fd = 0; fd < anfdmax; ++fd) 1654 for (fd = 0; fd < anfdmax; ++fd)
… …
1016 if (!fd_valid (fd) && errno == EBADF) 1656 if (!fd_valid (fd) && errno == EBADF)
1017 fd_kill (EV_A_ fd); 1657 fd_kill (EV_A_ fd);
1018} 1658}
1019 1659
1020/* 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 */
1021static void noinline 1661static void noinline ecb_cold
1022fd_enomem (EV_P) 1662fd_enomem (EV_P)
1023{ 1663{
1024 int fd; 1664 int fd;
1025 1665
1026 for (fd = anfdmax; fd--; ) 1666 for (fd = anfdmax; fd--; )
… …
1044 anfds [fd].emask = 0; 1684 anfds [fd].emask = 0;
1045 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1685 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1046 } 1686 }
1047} 1687}
1048 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
1049/*****************************************************************************/ 1703/*****************************************************************************/
1050 1704
1051/* 1705/*
1052 * 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
1053 * 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
1054 * the branching factor of the d-tree. 1708 * the branching factor of the d-tree.
1055 */ 1709 */
1056 1710
1057/* 1711/*
… …
1205 1859
1206static ANSIG signals [EV_NSIG - 1]; 1860static ANSIG signals [EV_NSIG - 1];
1207 1861
1208/*****************************************************************************/ 1862/*****************************************************************************/
1209 1863
1210/* used to prepare libev internal fd's */ 1864#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1211/* this is not fork-safe */
1212inline_speed void
1213fd_intern (int fd)
1214{
1215#ifdef _WIN32
1216 unsigned long arg = 1;
1217 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1218#else
1219 fcntl (fd, F_SETFD, FD_CLOEXEC);
1220 fcntl (fd, F_SETFL, O_NONBLOCK);
1221#endif
1222}
1223 1865
1224static void noinline 1866static void noinline ecb_cold
1225evpipe_init (EV_P) 1867evpipe_init (EV_P)
1226{ 1868{
1227 if (!ev_is_active (&pipe_w)) 1869 if (!ev_is_active (&pipe_w))
1228 { 1870 {
1229#if EV_USE_EVENTFD 1871# if EV_USE_EVENTFD
1230 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1872 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1231 if (evfd < 0 && errno == EINVAL) 1873 if (evfd < 0 && errno == EINVAL)
1232 evfd = eventfd (0, 0); 1874 evfd = eventfd (0, 0);
1233 1875
1234 if (evfd >= 0) 1876 if (evfd >= 0)
… …
1236 evpipe [0] = -1; 1878 evpipe [0] = -1;
1237 fd_intern (evfd); /* doing it twice doesn't hurt */ 1879 fd_intern (evfd); /* doing it twice doesn't hurt */
1238 ev_io_set (&pipe_w, evfd, EV_READ); 1880 ev_io_set (&pipe_w, evfd, EV_READ);
1239 } 1881 }
1240 else 1882 else
1241#endif 1883# endif
1242 { 1884 {
1243 while (pipe (evpipe)) 1885 while (pipe (evpipe))
1244 ev_syserr ("(libev) error creating signal/async pipe"); 1886 ev_syserr ("(libev) error creating signal/async pipe");
1245 1887
1246 fd_intern (evpipe [0]); 1888 fd_intern (evpipe [0]);
… …
1251 ev_io_start (EV_A_ &pipe_w); 1893 ev_io_start (EV_A_ &pipe_w);
1252 ev_unref (EV_A); /* watcher should not keep loop alive */ 1894 ev_unref (EV_A); /* watcher should not keep loop alive */
1253 } 1895 }
1254} 1896}
1255 1897
1256inline_size void 1898inline_speed void
1257evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1899evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1258{ 1900{
1259 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)
1260 { 1914 {
1915 int old_errno;
1916
1917 pipe_write_skipped = 0;
1918 ECB_MEMORY_FENCE_RELEASE;
1919
1261 int old_errno = errno; /* save errno because write might clobber it */ 1920 old_errno = errno; /* save errno because write will clobber it */
1262
1263 *flag = 1;
1264 1921
1265#if EV_USE_EVENTFD 1922#if EV_USE_EVENTFD
1266 if (evfd >= 0) 1923 if (evfd >= 0)
1267 { 1924 {
1268 uint64_t counter = 1; 1925 uint64_t counter = 1;
1269 write (evfd, &counter, sizeof (uint64_t)); 1926 write (evfd, &counter, sizeof (uint64_t));
1270 } 1927 }
1271 else 1928 else
1272#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
1273 write (evpipe [1], &old_errno, 1); 1938 write (evpipe [1], &(evpipe [1]), 1);
1939#endif
1940 }
1274 1941
1275 errno = old_errno; 1942 errno = old_errno;
1276 } 1943 }
1277} 1944}
1278 1945
… …
1281static void 1948static void
1282pipecb (EV_P_ ev_io *iow, int revents) 1949pipecb (EV_P_ ev_io *iow, int revents)
1283{ 1950{
1284 int i; 1951 int i;
1285 1952
1953 if (revents & EV_READ)
1954 {
1286#if EV_USE_EVENTFD 1955#if EV_USE_EVENTFD
1287 if (evfd >= 0) 1956 if (evfd >= 0)
1288 { 1957 {
1289 uint64_t counter; 1958 uint64_t counter;
1290 read (evfd, &counter, sizeof (uint64_t)); 1959 read (evfd, &counter, sizeof (uint64_t));
1291 } 1960 }
1292 else 1961 else
1293#endif 1962#endif
1294 { 1963 {
1295 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
1296 read (evpipe [0], &dummy, 1); 1973 read (evpipe [0], &dummy, sizeof (dummy));
1974#endif
1975 }
1297 } 1976 }
1298 1977
1978 pipe_write_skipped = 0;
1979
1980 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1981
1982#if EV_SIGNAL_ENABLE
1299 if (sig_pending) 1983 if (sig_pending)
1300 { 1984 {
1301 sig_pending = 0; 1985 sig_pending = 0;
1986
1987 ECB_MEMORY_FENCE;
1302 1988
1303 for (i = EV_NSIG - 1; i--; ) 1989 for (i = EV_NSIG - 1; i--; )
1304 if (expect_false (signals [i].pending)) 1990 if (expect_false (signals [i].pending))
1305 ev_feed_signal_event (EV_A_ i + 1); 1991 ev_feed_signal_event (EV_A_ i + 1);
1306 } 1992 }
1993#endif
1307 1994
1308#if EV_ASYNC_ENABLE 1995#if EV_ASYNC_ENABLE
1309 if (async_pending) 1996 if (async_pending)
1310 { 1997 {
1311 async_pending = 0; 1998 async_pending = 0;
1999
2000 ECB_MEMORY_FENCE;
1312 2001
1313 for (i = asynccnt; i--; ) 2002 for (i = asynccnt; i--; )
1314 if (asyncs [i]->sent) 2003 if (asyncs [i]->sent)
1315 { 2004 {
1316 asyncs [i]->sent = 0; 2005 asyncs [i]->sent = 0;
2006 ECB_MEMORY_FENCE_RELEASE;
1317 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2007 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1318 } 2008 }
1319 } 2009 }
1320#endif 2010#endif
1321} 2011}
1322 2012
1323/*****************************************************************************/ 2013/*****************************************************************************/
1324 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
1325static void 2032static void
1326ev_sighandler (int signum) 2033ev_sighandler (int signum)
1327{ 2034{
1328#if EV_MULTIPLICITY
1329 EV_P = signals [signum - 1].loop;
1330#endif
1331
1332#ifdef _WIN32 2035#ifdef _WIN32
1333 signal (signum, ev_sighandler); 2036 signal (signum, ev_sighandler);
1334#endif 2037#endif
1335 2038
1336 signals [signum - 1].pending = 1; 2039 ev_feed_signal (signum);
1337 evpipe_write (EV_A_ &sig_pending);
1338} 2040}
1339 2041
1340void noinline 2042void noinline
1341ev_feed_signal_event (EV_P_ int signum) 2043ev_feed_signal_event (EV_P_ int signum) EV_THROW
1342{ 2044{
1343 WL w; 2045 WL w;
1344 2046
1345 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2047 if (expect_false (signum <= 0 || signum > EV_NSIG))
1346 return; 2048 return;
… …
1354 if (expect_false (signals [signum].loop != EV_A)) 2056 if (expect_false (signals [signum].loop != EV_A))
1355 return; 2057 return;
1356#endif 2058#endif
1357 2059
1358 signals [signum].pending = 0; 2060 signals [signum].pending = 0;
2061 ECB_MEMORY_FENCE_RELEASE;
1359 2062
1360 for (w = signals [signum].head; w; w = w->next) 2063 for (w = signals [signum].head; w; w = w->next)
1361 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2064 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1362} 2065}
1363 2066
… …
1379 break; 2082 break;
1380 } 2083 }
1381} 2084}
1382#endif 2085#endif
1383 2086
2087#endif
2088
1384/*****************************************************************************/ 2089/*****************************************************************************/
1385 2090
2091#if EV_CHILD_ENABLE
1386static WL childs [EV_PID_HASHSIZE]; 2092static WL childs [EV_PID_HASHSIZE];
1387
1388#ifndef _WIN32
1389 2093
1390static ev_signal childev; 2094static ev_signal childev;
1391 2095
1392#ifndef WIFCONTINUED 2096#ifndef WIFCONTINUED
1393# define WIFCONTINUED(status) 0 2097# define WIFCONTINUED(status) 0
… …
1398child_reap (EV_P_ int chain, int pid, int status) 2102child_reap (EV_P_ int chain, int pid, int status)
1399{ 2103{
1400 ev_child *w; 2104 ev_child *w;
1401 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2105 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1402 2106
1403 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)
1404 { 2108 {
1405 if ((w->pid == pid || !w->pid) 2109 if ((w->pid == pid || !w->pid)
1406 && (!traced || (w->flags & 1))) 2110 && (!traced || (w->flags & 1)))
1407 { 2111 {
1408 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 */
… …
1433 /* 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 */
1434 /* 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 */
1435 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2139 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1436 2140
1437 child_reap (EV_A_ pid, pid, status); 2141 child_reap (EV_A_ pid, pid, status);
1438 if (EV_PID_HASHSIZE > 1) 2142 if ((EV_PID_HASHSIZE) > 1)
1439 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 */
1440} 2144}
1441 2145
1442#endif 2146#endif
1443 2147
1444/*****************************************************************************/ 2148/*****************************************************************************/
1445 2149
2150#if EV_USE_IOCP
2151# include "ev_iocp.c"
2152#endif
1446#if EV_USE_PORT 2153#if EV_USE_PORT
1447# include "ev_port.c" 2154# include "ev_port.c"
1448#endif 2155#endif
1449#if EV_USE_KQUEUE 2156#if EV_USE_KQUEUE
1450# include "ev_kqueue.c" 2157# include "ev_kqueue.c"
… …
1457#endif 2164#endif
1458#if EV_USE_SELECT 2165#if EV_USE_SELECT
1459# include "ev_select.c" 2166# include "ev_select.c"
1460#endif 2167#endif
1461 2168
1462int 2169int ecb_cold
1463ev_version_major (void) 2170ev_version_major (void) EV_THROW
1464{ 2171{
1465 return EV_VERSION_MAJOR; 2172 return EV_VERSION_MAJOR;
1466} 2173}
1467 2174
1468int 2175int ecb_cold
1469ev_version_minor (void) 2176ev_version_minor (void) EV_THROW
1470{ 2177{
1471 return EV_VERSION_MINOR; 2178 return EV_VERSION_MINOR;
1472} 2179}
1473 2180
1474/* 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 */
1475int inline_size 2182int inline_size ecb_cold
1476enable_secure (void) 2183enable_secure (void)
1477{ 2184{
1478#ifdef _WIN32 2185#ifdef _WIN32
1479 return 0; 2186 return 0;
1480#else 2187#else
1481 return getuid () != geteuid () 2188 return getuid () != geteuid ()
1482 || getgid () != getegid (); 2189 || getgid () != getegid ();
1483#endif 2190#endif
1484} 2191}
1485 2192
1486unsigned int 2193unsigned int ecb_cold
1487ev_supported_backends (void) 2194ev_supported_backends (void) EV_THROW
1488{ 2195{
1489 unsigned int flags = 0; 2196 unsigned int flags = 0;
1490 2197
1491 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2198 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1492 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2199 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1495 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2202 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1496 2203
1497 return flags; 2204 return flags;
1498} 2205}
1499 2206
1500unsigned int 2207unsigned int ecb_cold
1501ev_recommended_backends (void) 2208ev_recommended_backends (void) EV_THROW
1502{ 2209{
1503 unsigned int flags = ev_supported_backends (); 2210 unsigned int flags = ev_supported_backends ();
1504 2211
1505#ifndef __NetBSD__ 2212#ifndef __NetBSD__
1506 /* kqueue is borked on everything but netbsd apparently */ 2213 /* kqueue is borked on everything but netbsd apparently */
… …
1510#ifdef __APPLE__ 2217#ifdef __APPLE__
1511 /* only select works correctly on that "unix-certified" platform */ 2218 /* only select works correctly on that "unix-certified" platform */
1512 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2219 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1513 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 */
1514#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
1515 2225
1516 return flags; 2226 return flags;
1517} 2227}
1518 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
1519unsigned int 2241unsigned int
1520ev_embeddable_backends (void) 2242ev_backend (EV_P) EV_THROW
1521{ 2243{
1522 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2244 return backend;
1523
1524 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1525 /* please fix it and tell me how to detect the fix */
1526 flags &= ~EVBACKEND_EPOLL;
1527
1528 return flags;
1529} 2245}
1530 2246
2247#if EV_FEATURE_API
1531unsigned int 2248unsigned int
1532ev_backend (EV_P) 2249ev_iteration (EV_P) EV_THROW
1533{ 2250{
1534 return backend; 2251 return loop_count;
1535} 2252}
1536 2253
1537#if EV_MINIMAL < 2
1538unsigned int 2254unsigned int
1539ev_loop_count (EV_P) 2255ev_depth (EV_P) EV_THROW
1540{
1541 return loop_count;
1542}
1543
1544unsigned int
1545ev_loop_depth (EV_P)
1546{ 2256{
1547 return loop_depth; 2257 return loop_depth;
1548} 2258}
1549 2259
1550void 2260void
1551ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2261ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1552{ 2262{
1553 io_blocktime = interval; 2263 io_blocktime = interval;
1554} 2264}
1555 2265
1556void 2266void
1557ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2267ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1558{ 2268{
1559 timeout_blocktime = interval; 2269 timeout_blocktime = interval;
1560} 2270}
1561 2271
1562void 2272void
1563ev_set_userdata (EV_P_ void *data) 2273ev_set_userdata (EV_P_ void *data) EV_THROW
1564{ 2274{
1565 userdata = data; 2275 userdata = data;
1566} 2276}
1567 2277
1568void * 2278void *
1569ev_userdata (EV_P) 2279ev_userdata (EV_P) EV_THROW
1570{ 2280{
1571 return userdata; 2281 return userdata;
1572} 2282}
1573 2283
2284void
1574void 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
1575{ 2286{
1576 invoke_cb = invoke_pending_cb; 2287 invoke_cb = invoke_pending_cb;
1577} 2288}
1578 2289
2290void
1579void 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
1580{ 2292{
1581 release_cb = release; 2293 release_cb = release;
1582 acquire_cb = acquire; 2294 acquire_cb = acquire;
1583} 2295}
1584#endif 2296#endif
1585 2297
1586/* initialise a loop structure, must be zero-initialised */ 2298/* initialise a loop structure, must be zero-initialised */
1587static void noinline 2299static void noinline ecb_cold
1588loop_init (EV_P_ unsigned int flags) 2300loop_init (EV_P_ unsigned int flags) EV_THROW
1589{ 2301{
1590 if (!backend) 2302 if (!backend)
1591 { 2303 {
2304 origflags = flags;
2305
1592#if EV_USE_REALTIME 2306#if EV_USE_REALTIME
1593 if (!have_realtime) 2307 if (!have_realtime)
1594 { 2308 {
1595 struct timespec ts; 2309 struct timespec ts;
1596 2310
… …
1618 if (!(flags & EVFLAG_NOENV) 2332 if (!(flags & EVFLAG_NOENV)
1619 && !enable_secure () 2333 && !enable_secure ()
1620 && getenv ("LIBEV_FLAGS")) 2334 && getenv ("LIBEV_FLAGS"))
1621 flags = atoi (getenv ("LIBEV_FLAGS")); 2335 flags = atoi (getenv ("LIBEV_FLAGS"));
1622 2336
1623 ev_rt_now = ev_time (); 2337 ev_rt_now = ev_time ();
1624 mn_now = get_clock (); 2338 mn_now = get_clock ();
1625 now_floor = mn_now; 2339 now_floor = mn_now;
1626 rtmn_diff = ev_rt_now - mn_now; 2340 rtmn_diff = ev_rt_now - mn_now;
1627#if EV_MINIMAL < 2 2341#if EV_FEATURE_API
1628 invoke_cb = ev_invoke_pending; 2342 invoke_cb = ev_invoke_pending;
1629#endif 2343#endif
1630 2344
1631 io_blocktime = 0.; 2345 io_blocktime = 0.;
1632 timeout_blocktime = 0.; 2346 timeout_blocktime = 0.;
1633 backend = 0; 2347 backend = 0;
1634 backend_fd = -1; 2348 backend_fd = -1;
1635 sig_pending = 0; 2349 sig_pending = 0;
1636#if EV_ASYNC_ENABLE 2350#if EV_ASYNC_ENABLE
1637 async_pending = 0; 2351 async_pending = 0;
1638#endif 2352#endif
2353 pipe_write_skipped = 0;
2354 pipe_write_wanted = 0;
1639#if EV_USE_INOTIFY 2355#if EV_USE_INOTIFY
1640 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2356 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1641#endif 2357#endif
1642#if EV_USE_SIGNALFD 2358#if EV_USE_SIGNALFD
1643 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2359 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1644#endif 2360#endif
1645 2361
1646 if (!(flags & 0x0000ffffU)) 2362 if (!(flags & EVBACKEND_MASK))
1647 flags |= ev_recommended_backends (); 2363 flags |= ev_recommended_backends ();
1648 2364
2365#if EV_USE_IOCP
2366 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2367#endif
1649#if EV_USE_PORT 2368#if EV_USE_PORT
1650 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2369 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1651#endif 2370#endif
1652#if EV_USE_KQUEUE 2371#if EV_USE_KQUEUE
1653 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2372 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1662 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2381 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1663#endif 2382#endif
1664 2383
1665 ev_prepare_init (&pending_w, pendingcb); 2384 ev_prepare_init (&pending_w, pendingcb);
1666 2385
2386#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1667 ev_init (&pipe_w, pipecb); 2387 ev_init (&pipe_w, pipecb);
1668 ev_set_priority (&pipe_w, EV_MAXPRI); 2388 ev_set_priority (&pipe_w, EV_MAXPRI);
2389#endif
1669 } 2390 }
1670} 2391}
1671 2392
1672/* free up a loop structure */ 2393/* free up a loop structure */
1673static void noinline 2394void ecb_cold
1674loop_destroy (EV_P) 2395ev_loop_destroy (EV_P)
1675{ 2396{
1676 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
1677 2421
1678 if (ev_is_active (&pipe_w)) 2422 if (ev_is_active (&pipe_w))
1679 { 2423 {
1680 /*ev_ref (EV_A);*/ 2424 /*ev_ref (EV_A);*/
1681 /*ev_io_stop (EV_A_ &pipe_w);*/ 2425 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1703#endif 2447#endif
1704 2448
1705 if (backend_fd >= 0) 2449 if (backend_fd >= 0)
1706 close (backend_fd); 2450 close (backend_fd);
1707 2451
2452#if EV_USE_IOCP
2453 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2454#endif
1708#if EV_USE_PORT 2455#if EV_USE_PORT
1709 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2456 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1710#endif 2457#endif
1711#if EV_USE_KQUEUE 2458#if EV_USE_KQUEUE
1712 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2459 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1739 array_free (periodic, EMPTY); 2486 array_free (periodic, EMPTY);
1740#endif 2487#endif
1741#if EV_FORK_ENABLE 2488#if EV_FORK_ENABLE
1742 array_free (fork, EMPTY); 2489 array_free (fork, EMPTY);
1743#endif 2490#endif
2491#if EV_CLEANUP_ENABLE
2492 array_free (cleanup, EMPTY);
2493#endif
1744 array_free (prepare, EMPTY); 2494 array_free (prepare, EMPTY);
1745 array_free (check, EMPTY); 2495 array_free (check, EMPTY);
1746#if EV_ASYNC_ENABLE 2496#if EV_ASYNC_ENABLE
1747 array_free (async, EMPTY); 2497 array_free (async, EMPTY);
1748#endif 2498#endif
1749 2499
1750 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
1751} 2510}
1752 2511
1753#if EV_USE_INOTIFY 2512#if EV_USE_INOTIFY
1754inline_size void infy_fork (EV_P); 2513inline_size void infy_fork (EV_P);
1755#endif 2514#endif
… …
1770 infy_fork (EV_A); 2529 infy_fork (EV_A);
1771#endif 2530#endif
1772 2531
1773 if (ev_is_active (&pipe_w)) 2532 if (ev_is_active (&pipe_w))
1774 { 2533 {
1775 /* this "locks" the handlers against writing to the pipe */ 2534 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1776 /* while we modify the fd vars */
1777 sig_pending = 1;
1778#if EV_ASYNC_ENABLE
1779 async_pending = 1;
1780#endif
1781 2535
1782 ev_ref (EV_A); 2536 ev_ref (EV_A);
1783 ev_io_stop (EV_A_ &pipe_w); 2537 ev_io_stop (EV_A_ &pipe_w);
1784 2538
1785#if EV_USE_EVENTFD 2539#if EV_USE_EVENTFD
… …
1791 { 2545 {
1792 EV_WIN32_CLOSE_FD (evpipe [0]); 2546 EV_WIN32_CLOSE_FD (evpipe [0]);
1793 EV_WIN32_CLOSE_FD (evpipe [1]); 2547 EV_WIN32_CLOSE_FD (evpipe [1]);
1794 } 2548 }
1795 2549
2550#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1796 evpipe_init (EV_A); 2551 evpipe_init (EV_A);
1797 /* now iterate over everything, in case we missed something */ 2552 /* now iterate over everything, in case we missed something */
1798 pipecb (EV_A_ &pipe_w, EV_READ); 2553 pipecb (EV_A_ &pipe_w, EV_READ);
2554#endif
1799 } 2555 }
1800 2556
1801 postfork = 0; 2557 postfork = 0;
1802} 2558}
1803 2559
1804#if EV_MULTIPLICITY 2560#if EV_MULTIPLICITY
1805 2561
1806struct ev_loop * 2562struct ev_loop * ecb_cold
1807ev_loop_new (unsigned int flags) 2563ev_loop_new (unsigned int flags) EV_THROW
1808{ 2564{
1809 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2565 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1810 2566
1811 memset (EV_A, 0, sizeof (struct ev_loop)); 2567 memset (EV_A, 0, sizeof (struct ev_loop));
1812 loop_init (EV_A_ flags); 2568 loop_init (EV_A_ flags);
1813 2569
1814 if (ev_backend (EV_A)) 2570 if (ev_backend (EV_A))
1815 return EV_A; 2571 return EV_A;
1816 2572
2573 ev_free (EV_A);
1817 return 0; 2574 return 0;
1818} 2575}
1819 2576
1820void
1821ev_loop_destroy (EV_P)
1822{
1823 loop_destroy (EV_A);
1824 ev_free (loop);
1825}
1826
1827void
1828ev_loop_fork (EV_P)
1829{
1830 postfork = 1; /* must be in line with ev_default_fork */
1831}
1832#endif /* multiplicity */ 2577#endif /* multiplicity */
1833 2578
1834#if EV_VERIFY 2579#if EV_VERIFY
1835static void noinline 2580static void noinline ecb_cold
1836verify_watcher (EV_P_ W w) 2581verify_watcher (EV_P_ W w)
1837{ 2582{
1838 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));
1839 2584
1840 if (w->pending) 2585 if (w->pending)
1841 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));
1842} 2587}
1843 2588
1844static void noinline 2589static void noinline ecb_cold
1845verify_heap (EV_P_ ANHE *heap, int N) 2590verify_heap (EV_P_ ANHE *heap, int N)
1846{ 2591{
1847 int i; 2592 int i;
1848 2593
1849 for (i = HEAP0; i < N + HEAP0; ++i) 2594 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1854 2599
1855 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2600 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1856 } 2601 }
1857} 2602}
1858 2603
1859static void noinline 2604static void noinline ecb_cold
1860array_verify (EV_P_ W *ws, int cnt) 2605array_verify (EV_P_ W *ws, int cnt)
1861{ 2606{
1862 while (cnt--) 2607 while (cnt--)
1863 { 2608 {
1864 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2609 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1865 verify_watcher (EV_A_ ws [cnt]); 2610 verify_watcher (EV_A_ ws [cnt]);
1866 } 2611 }
1867} 2612}
1868#endif 2613#endif
1869 2614
1870#if EV_MINIMAL < 2 2615#if EV_FEATURE_API
1871void 2616void ecb_cold
1872ev_loop_verify (EV_P) 2617ev_verify (EV_P) EV_THROW
1873{ 2618{
1874#if EV_VERIFY 2619#if EV_VERIFY
1875 int i; 2620 int i;
1876 WL w; 2621 WL w, w2;
1877 2622
1878 assert (activecnt >= -1); 2623 assert (activecnt >= -1);
1879 2624
1880 assert (fdchangemax >= fdchangecnt); 2625 assert (fdchangemax >= fdchangecnt);
1881 for (i = 0; i < fdchangecnt; ++i) 2626 for (i = 0; i < fdchangecnt; ++i)
1882 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2627 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1883 2628
1884 assert (anfdmax >= 0); 2629 assert (anfdmax >= 0);
1885 for (i = 0; i < anfdmax; ++i) 2630 for (i = 0; i < anfdmax; ++i)
2631 {
2632 int j = 0;
2633
1886 for (w = anfds [i].head; w; w = w->next) 2634 for (w = w2 = anfds [i].head; w; w = w->next)
1887 { 2635 {
1888 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
1889 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));
1890 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));
1891 } 2646 }
2647 }
1892 2648
1893 assert (timermax >= timercnt); 2649 assert (timermax >= timercnt);
1894 verify_heap (EV_A_ timers, timercnt); 2650 verify_heap (EV_A_ timers, timercnt);
1895 2651
1896#if EV_PERIODIC_ENABLE 2652#if EV_PERIODIC_ENABLE
… …
1911#if EV_FORK_ENABLE 2667#if EV_FORK_ENABLE
1912 assert (forkmax >= forkcnt); 2668 assert (forkmax >= forkcnt);
1913 array_verify (EV_A_ (W *)forks, forkcnt); 2669 array_verify (EV_A_ (W *)forks, forkcnt);
1914#endif 2670#endif
1915 2671
2672#if EV_CLEANUP_ENABLE
2673 assert (cleanupmax >= cleanupcnt);
2674 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2675#endif
2676
1916#if EV_ASYNC_ENABLE 2677#if EV_ASYNC_ENABLE
1917 assert (asyncmax >= asynccnt); 2678 assert (asyncmax >= asynccnt);
1918 array_verify (EV_A_ (W *)asyncs, asynccnt); 2679 array_verify (EV_A_ (W *)asyncs, asynccnt);
1919#endif 2680#endif
1920 2681
2682#if EV_PREPARE_ENABLE
1921 assert (preparemax >= preparecnt); 2683 assert (preparemax >= preparecnt);
1922 array_verify (EV_A_ (W *)prepares, preparecnt); 2684 array_verify (EV_A_ (W *)prepares, preparecnt);
2685#endif
1923 2686
2687#if EV_CHECK_ENABLE
1924 assert (checkmax >= checkcnt); 2688 assert (checkmax >= checkcnt);
1925 array_verify (EV_A_ (W *)checks, checkcnt); 2689 array_verify (EV_A_ (W *)checks, checkcnt);
2690#endif
1926 2691
1927# if 0 2692# if 0
2693#if EV_CHILD_ENABLE
1928 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)
1929 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2695 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2696#endif
1930# endif 2697# endif
1931#endif 2698#endif
1932} 2699}
1933#endif 2700#endif
1934 2701
1935#if EV_MULTIPLICITY 2702#if EV_MULTIPLICITY
1936struct ev_loop * 2703struct ev_loop * ecb_cold
1937ev_default_loop_init (unsigned int flags)
1938#else 2704#else
1939int 2705int
2706#endif
1940ev_default_loop (unsigned int flags) 2707ev_default_loop (unsigned int flags) EV_THROW
1941#endif
1942{ 2708{
1943 if (!ev_default_loop_ptr) 2709 if (!ev_default_loop_ptr)
1944 { 2710 {
1945#if EV_MULTIPLICITY 2711#if EV_MULTIPLICITY
1946 EV_P = ev_default_loop_ptr = &default_loop_struct; 2712 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1950 2716
1951 loop_init (EV_A_ flags); 2717 loop_init (EV_A_ flags);
1952 2718
1953 if (ev_backend (EV_A)) 2719 if (ev_backend (EV_A))
1954 { 2720 {
1955#ifndef _WIN32 2721#if EV_CHILD_ENABLE
1956 ev_signal_init (&childev, childcb, SIGCHLD); 2722 ev_signal_init (&childev, childcb, SIGCHLD);
1957 ev_set_priority (&childev, EV_MAXPRI); 2723 ev_set_priority (&childev, EV_MAXPRI);
1958 ev_signal_start (EV_A_ &childev); 2724 ev_signal_start (EV_A_ &childev);
1959 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2725 ev_unref (EV_A); /* child watcher should not keep loop alive */
1960#endif 2726#endif
… …
1965 2731
1966 return ev_default_loop_ptr; 2732 return ev_default_loop_ptr;
1967} 2733}
1968 2734
1969void 2735void
1970ev_default_destroy (void) 2736ev_loop_fork (EV_P) EV_THROW
1971{ 2737{
1972#if EV_MULTIPLICITY 2738 postfork = 1;
1973 EV_P = ev_default_loop_ptr;
1974#endif
1975
1976 ev_default_loop_ptr = 0;
1977
1978#ifndef _WIN32
1979 ev_ref (EV_A); /* child watcher */
1980 ev_signal_stop (EV_A_ &childev);
1981#endif
1982
1983 loop_destroy (EV_A);
1984}
1985
1986void
1987ev_default_fork (void)
1988{
1989#if EV_MULTIPLICITY
1990 EV_P = ev_default_loop_ptr;
1991#endif
1992
1993 postfork = 1; /* must be in line with ev_loop_fork */
1994} 2739}
1995 2740
1996/*****************************************************************************/ 2741/*****************************************************************************/
1997 2742
1998void 2743void
… …
2000{ 2745{
2001 EV_CB_INVOKE ((W)w, revents); 2746 EV_CB_INVOKE ((W)w, revents);
2002} 2747}
2003 2748
2004unsigned int 2749unsigned int
2005ev_pending_count (EV_P) 2750ev_pending_count (EV_P) EV_THROW
2006{ 2751{
2007 int pri; 2752 int pri;
2008 unsigned int count = 0; 2753 unsigned int count = 0;
2009 2754
2010 for (pri = NUMPRI; pri--; ) 2755 for (pri = NUMPRI; pri--; )
… …
2014} 2759}
2015 2760
2016void noinline 2761void noinline
2017ev_invoke_pending (EV_P) 2762ev_invoke_pending (EV_P)
2018{ 2763{
2019 int pri; 2764 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2020
2021 for (pri = NUMPRI; pri--; )
2022 while (pendingcnt [pri]) 2765 while (pendingcnt [pendingpri])
2023 { 2766 {
2024 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2767 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2025
2026 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2027 /* ^ this is no longer true, as pending_w could be here */
2028 2768
2029 p->w->pending = 0; 2769 p->w->pending = 0;
2030 EV_CB_INVOKE (p->w, p->events); 2770 EV_CB_INVOKE (p->w, p->events);
2031 EV_FREQUENT_CHECK; 2771 EV_FREQUENT_CHECK;
2032 } 2772 }
… …
2089 EV_FREQUENT_CHECK; 2829 EV_FREQUENT_CHECK;
2090 feed_reverse (EV_A_ (W)w); 2830 feed_reverse (EV_A_ (W)w);
2091 } 2831 }
2092 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2832 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2093 2833
2094 feed_reverse_done (EV_A_ EV_TIMEOUT); 2834 feed_reverse_done (EV_A_ EV_TIMER);
2095 } 2835 }
2096} 2836}
2097 2837
2098#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
2099/* make periodics pending */ 2864/* make periodics pending */
2100inline_size void 2865inline_size void
2101periodics_reify (EV_P) 2866periodics_reify (EV_P)
2102{ 2867{
2103 EV_FREQUENT_CHECK; 2868 EV_FREQUENT_CHECK;
2104 2869
2105 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2870 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2106 { 2871 {
2107 int feed_count = 0;
2108
2109 do 2872 do
2110 { 2873 {
2111 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2874 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2112 2875
2113 /*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)));*/
… …
2122 ANHE_at_cache (periodics [HEAP0]); 2885 ANHE_at_cache (periodics [HEAP0]);
2123 downheap (periodics, periodiccnt, HEAP0); 2886 downheap (periodics, periodiccnt, HEAP0);
2124 } 2887 }
2125 else if (w->interval) 2888 else if (w->interval)
2126 { 2889 {
2127 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2890 periodic_recalc (EV_A_ w);
2128 /* if next trigger time is not sufficiently in the future, put it there */
2129 /* this might happen because of floating point inexactness */
2130 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2131 {
2132 ev_at (w) += w->interval;
2133
2134 /* if interval is unreasonably low we might still have a time in the past */
2135 /* so correct this. this will make the periodic very inexact, but the user */
2136 /* has effectively asked to get triggered more often than possible */
2137 if (ev_at (w) < ev_rt_now)
2138 ev_at (w) = ev_rt_now;
2139 }
2140
2141 ANHE_at_cache (periodics [HEAP0]); 2891 ANHE_at_cache (periodics [HEAP0]);
2142 downheap (periodics, periodiccnt, HEAP0); 2892 downheap (periodics, periodiccnt, HEAP0);
2143 } 2893 }
2144 else 2894 else
2145 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2895 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2152 feed_reverse_done (EV_A_ EV_PERIODIC); 2902 feed_reverse_done (EV_A_ EV_PERIODIC);
2153 } 2903 }
2154} 2904}
2155 2905
2156/* simply recalculate all periodics */ 2906/* simply recalculate all periodics */
2157/* 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? */
2158static void noinline 2908static void noinline ecb_cold
2159periodics_reschedule (EV_P) 2909periodics_reschedule (EV_P)
2160{ 2910{
2161 int i; 2911 int i;
2162 2912
2163 /* adjust periodics after time jump */ 2913 /* adjust periodics after time jump */
… …
2166 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2916 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2167 2917
2168 if (w->reschedule_cb) 2918 if (w->reschedule_cb)
2169 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2919 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2170 else if (w->interval) 2920 else if (w->interval)
2171 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2921 periodic_recalc (EV_A_ w);
2172 2922
2173 ANHE_at_cache (periodics [i]); 2923 ANHE_at_cache (periodics [i]);
2174 } 2924 }
2175 2925
2176 reheap (periodics, periodiccnt); 2926 reheap (periodics, periodiccnt);
2177} 2927}
2178#endif 2928#endif
2179 2929
2180/* adjust all timers by a given offset */ 2930/* adjust all timers by a given offset */
2181static void noinline 2931static void noinline ecb_cold
2182timers_reschedule (EV_P_ ev_tstamp adjust) 2932timers_reschedule (EV_P_ ev_tstamp adjust)
2183{ 2933{
2184 int i; 2934 int i;
2185 2935
2186 for (i = 0; i < timercnt; ++i) 2936 for (i = 0; i < timercnt; ++i)
… …
2223 * 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
2224 * in the unlikely event of having been preempted here. 2974 * in the unlikely event of having been preempted here.
2225 */ 2975 */
2226 for (i = 4; --i; ) 2976 for (i = 4; --i; )
2227 { 2977 {
2978 ev_tstamp diff;
2228 rtmn_diff = ev_rt_now - mn_now; 2979 rtmn_diff = ev_rt_now - mn_now;
2229 2980
2981 diff = odiff - rtmn_diff;
2982
2230 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2983 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2231 return; /* all is well */ 2984 return; /* all is well */
2232 2985
2233 ev_rt_now = ev_time (); 2986 ev_rt_now = ev_time ();
2234 mn_now = get_clock (); 2987 mn_now = get_clock ();
2235 now_floor = mn_now; 2988 now_floor = mn_now;
… …
2257 3010
2258 mn_now = ev_rt_now; 3011 mn_now = ev_rt_now;
2259 } 3012 }
2260} 3013}
2261 3014
2262void 3015int
2263ev_loop (EV_P_ int flags) 3016ev_run (EV_P_ int flags)
2264{ 3017{
2265#if EV_MINIMAL < 2 3018#if EV_FEATURE_API
2266 ++loop_depth; 3019 ++loop_depth;
2267#endif 3020#endif
2268 3021
2269 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));
2270 3023
2271 loop_done = EVUNLOOP_CANCEL; 3024 loop_done = EVBREAK_CANCEL;
2272 3025
2273 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 */
2274 3027
2275 do 3028 do
2276 { 3029 {
2277#if EV_VERIFY >= 2 3030#if EV_VERIFY >= 2
2278 ev_loop_verify (EV_A); 3031 ev_verify (EV_A);
2279#endif 3032#endif
2280 3033
2281#ifndef _WIN32 3034#ifndef _WIN32
2282 if (expect_false (curpid)) /* penalise the forking check even more */ 3035 if (expect_false (curpid)) /* penalise the forking check even more */
2283 if (expect_false (getpid () != curpid)) 3036 if (expect_false (getpid () != curpid))
… …
2295 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3048 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2296 EV_INVOKE_PENDING; 3049 EV_INVOKE_PENDING;
2297 } 3050 }
2298#endif 3051#endif
2299 3052
3053#if EV_PREPARE_ENABLE
2300 /* queue prepare watchers (and execute them) */ 3054 /* queue prepare watchers (and execute them) */
2301 if (expect_false (preparecnt)) 3055 if (expect_false (preparecnt))
2302 { 3056 {
2303 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3057 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2304 EV_INVOKE_PENDING; 3058 EV_INVOKE_PENDING;
2305 } 3059 }
3060#endif
2306 3061
2307 if (expect_false (loop_done)) 3062 if (expect_false (loop_done))
2308 break; 3063 break;
2309 3064
2310 /* we might have forked, so reify kernel state if necessary */ 3065 /* we might have forked, so reify kernel state if necessary */
… …
2317 /* calculate blocking time */ 3072 /* calculate blocking time */
2318 { 3073 {
2319 ev_tstamp waittime = 0.; 3074 ev_tstamp waittime = 0.;
2320 ev_tstamp sleeptime = 0.; 3075 ev_tstamp sleeptime = 0.;
2321 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
2322 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3088 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2323 { 3089 {
2324 /* remember old timestamp for io_blocktime calculation */
2325 ev_tstamp prev_mn_now = mn_now;
2326
2327 /* update time to cancel out callback processing overhead */
2328 time_update (EV_A_ 1e100);
2329
2330 waittime = MAX_BLOCKTIME; 3090 waittime = MAX_BLOCKTIME;
2331 3091
2332 if (timercnt) 3092 if (timercnt)
2333 { 3093 {
2334 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3094 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2335 if (waittime > to) waittime = to; 3095 if (waittime > to) waittime = to;
2336 } 3096 }
2337 3097
2338#if EV_PERIODIC_ENABLE 3098#if EV_PERIODIC_ENABLE
2339 if (periodiccnt) 3099 if (periodiccnt)
2340 { 3100 {
2341 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3101 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2342 if (waittime > to) waittime = to; 3102 if (waittime > to) waittime = to;
2343 } 3103 }
2344#endif 3104#endif
2345 3105
2346 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3106 /* don't let timeouts decrease the waittime below timeout_blocktime */
2347 if (expect_false (waittime < timeout_blocktime)) 3107 if (expect_false (waittime < timeout_blocktime))
2348 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;
2349 3114
2350 /* extra check because io_blocktime is commonly 0 */ 3115 /* extra check because io_blocktime is commonly 0 */
2351 if (expect_false (io_blocktime)) 3116 if (expect_false (io_blocktime))
2352 { 3117 {
2353 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3118 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2354 3119
2355 if (sleeptime > waittime - backend_fudge) 3120 if (sleeptime > waittime - backend_mintime)
2356 sleeptime = waittime - backend_fudge; 3121 sleeptime = waittime - backend_mintime;
2357 3122
2358 if (expect_true (sleeptime > 0.)) 3123 if (expect_true (sleeptime > 0.))
2359 { 3124 {
2360 ev_sleep (sleeptime); 3125 ev_sleep (sleeptime);
2361 waittime -= sleeptime; 3126 waittime -= sleeptime;
2362 } 3127 }
2363 } 3128 }
2364 } 3129 }
2365 3130
2366#if EV_MINIMAL < 2 3131#if EV_FEATURE_API
2367 ++loop_count; 3132 ++loop_count;
2368#endif 3133#endif
2369 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3134 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2370 backend_poll (EV_A_ waittime); 3135 backend_poll (EV_A_ waittime);
2371 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 if (pipe_write_skipped)
3141 {
3142 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3143 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3144 }
3145
2372 3146
2373 /* update ev_rt_now, do magic */ 3147 /* update ev_rt_now, do magic */
2374 time_update (EV_A_ waittime + sleeptime); 3148 time_update (EV_A_ waittime + sleeptime);
2375 } 3149 }
2376 3150
… …
2383#if EV_IDLE_ENABLE 3157#if EV_IDLE_ENABLE
2384 /* queue idle watchers unless other events are pending */ 3158 /* queue idle watchers unless other events are pending */
2385 idle_reify (EV_A); 3159 idle_reify (EV_A);
2386#endif 3160#endif
2387 3161
3162#if EV_CHECK_ENABLE
2388 /* queue check watchers, to be executed first */ 3163 /* queue check watchers, to be executed first */
2389 if (expect_false (checkcnt)) 3164 if (expect_false (checkcnt))
2390 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3165 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3166#endif
2391 3167
2392 EV_INVOKE_PENDING; 3168 EV_INVOKE_PENDING;
2393 } 3169 }
2394 while (expect_true ( 3170 while (expect_true (
2395 activecnt 3171 activecnt
2396 && !loop_done 3172 && !loop_done
2397 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3173 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2398 )); 3174 ));
2399 3175
2400 if (loop_done == EVUNLOOP_ONE) 3176 if (loop_done == EVBREAK_ONE)
2401 loop_done = EVUNLOOP_CANCEL; 3177 loop_done = EVBREAK_CANCEL;
2402 3178
2403#if EV_MINIMAL < 2 3179#if EV_FEATURE_API
2404 --loop_depth; 3180 --loop_depth;
2405#endif 3181#endif
3182
3183 return activecnt;
2406} 3184}
2407 3185
2408void 3186void
2409ev_unloop (EV_P_ int how) 3187ev_break (EV_P_ int how) EV_THROW
2410{ 3188{
2411 loop_done = how; 3189 loop_done = how;
2412} 3190}
2413 3191
2414void 3192void
2415ev_ref (EV_P) 3193ev_ref (EV_P) EV_THROW
2416{ 3194{
2417 ++activecnt; 3195 ++activecnt;
2418} 3196}
2419 3197
2420void 3198void
2421ev_unref (EV_P) 3199ev_unref (EV_P) EV_THROW
2422{ 3200{
2423 --activecnt; 3201 --activecnt;
2424} 3202}
2425 3203
2426void 3204void
2427ev_now_update (EV_P) 3205ev_now_update (EV_P) EV_THROW
2428{ 3206{
2429 time_update (EV_A_ 1e100); 3207 time_update (EV_A_ 1e100);
2430} 3208}
2431 3209
2432void 3210void
2433ev_suspend (EV_P) 3211ev_suspend (EV_P) EV_THROW
2434{ 3212{
2435 ev_now_update (EV_A); 3213 ev_now_update (EV_A);
2436} 3214}
2437 3215
2438void 3216void
2439ev_resume (EV_P) 3217ev_resume (EV_P) EV_THROW
2440{ 3218{
2441 ev_tstamp mn_prev = mn_now; 3219 ev_tstamp mn_prev = mn_now;
2442 3220
2443 ev_now_update (EV_A); 3221 ev_now_update (EV_A);
2444 timers_reschedule (EV_A_ mn_now - mn_prev); 3222 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2483 w->pending = 0; 3261 w->pending = 0;
2484 } 3262 }
2485} 3263}
2486 3264
2487int 3265int
2488ev_clear_pending (EV_P_ void *w) 3266ev_clear_pending (EV_P_ void *w) EV_THROW
2489{ 3267{
2490 W w_ = (W)w; 3268 W w_ = (W)w;
2491 int pending = w_->pending; 3269 int pending = w_->pending;
2492 3270
2493 if (expect_true (pending)) 3271 if (expect_true (pending))
… …
2526} 3304}
2527 3305
2528/*****************************************************************************/ 3306/*****************************************************************************/
2529 3307
2530void noinline 3308void noinline
2531ev_io_start (EV_P_ ev_io *w) 3309ev_io_start (EV_P_ ev_io *w) EV_THROW
2532{ 3310{
2533 int fd = w->fd; 3311 int fd = w->fd;
2534 3312
2535 if (expect_false (ev_is_active (w))) 3313 if (expect_false (ev_is_active (w)))
2536 return; 3314 return;
… …
2542 3320
2543 ev_start (EV_A_ (W)w, 1); 3321 ev_start (EV_A_ (W)w, 1);
2544 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3322 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2545 wlist_add (&anfds[fd].head, (WL)w); 3323 wlist_add (&anfds[fd].head, (WL)w);
2546 3324
3325 /* common bug, apparently */
3326 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3327
2547 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3328 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2548 w->events &= ~EV__IOFDSET; 3329 w->events &= ~EV__IOFDSET;
2549 3330
2550 EV_FREQUENT_CHECK; 3331 EV_FREQUENT_CHECK;
2551} 3332}
2552 3333
2553void noinline 3334void noinline
2554ev_io_stop (EV_P_ ev_io *w) 3335ev_io_stop (EV_P_ ev_io *w) EV_THROW
2555{ 3336{
2556 clear_pending (EV_A_ (W)w); 3337 clear_pending (EV_A_ (W)w);
2557 if (expect_false (!ev_is_active (w))) 3338 if (expect_false (!ev_is_active (w)))
2558 return; 3339 return;
2559 3340
… …
2562 EV_FREQUENT_CHECK; 3343 EV_FREQUENT_CHECK;
2563 3344
2564 wlist_del (&anfds[w->fd].head, (WL)w); 3345 wlist_del (&anfds[w->fd].head, (WL)w);
2565 ev_stop (EV_A_ (W)w); 3346 ev_stop (EV_A_ (W)w);
2566 3347
2567 fd_change (EV_A_ w->fd, 1); 3348 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2568 3349
2569 EV_FREQUENT_CHECK; 3350 EV_FREQUENT_CHECK;
2570} 3351}
2571 3352
2572void noinline 3353void noinline
2573ev_timer_start (EV_P_ ev_timer *w) 3354ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2574{ 3355{
2575 if (expect_false (ev_is_active (w))) 3356 if (expect_false (ev_is_active (w)))
2576 return; 3357 return;
2577 3358
2578 ev_at (w) += mn_now; 3359 ev_at (w) += mn_now;
… …
2592 3373
2593 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3374 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2594} 3375}
2595 3376
2596void noinline 3377void noinline
2597ev_timer_stop (EV_P_ ev_timer *w) 3378ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2598{ 3379{
2599 clear_pending (EV_A_ (W)w); 3380 clear_pending (EV_A_ (W)w);
2600 if (expect_false (!ev_is_active (w))) 3381 if (expect_false (!ev_is_active (w)))
2601 return; 3382 return;
2602 3383
… …
2622 3403
2623 EV_FREQUENT_CHECK; 3404 EV_FREQUENT_CHECK;
2624} 3405}
2625 3406
2626void noinline 3407void noinline
2627ev_timer_again (EV_P_ ev_timer *w) 3408ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2628{ 3409{
2629 EV_FREQUENT_CHECK; 3410 EV_FREQUENT_CHECK;
3411
3412 clear_pending (EV_A_ (W)w);
2630 3413
2631 if (ev_is_active (w)) 3414 if (ev_is_active (w))
2632 { 3415 {
2633 if (w->repeat) 3416 if (w->repeat)
2634 { 3417 {
… …
2647 3430
2648 EV_FREQUENT_CHECK; 3431 EV_FREQUENT_CHECK;
2649} 3432}
2650 3433
2651ev_tstamp 3434ev_tstamp
2652ev_timer_remaining (EV_P_ ev_timer *w) 3435ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2653{ 3436{
2654 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3437 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2655} 3438}
2656 3439
2657#if EV_PERIODIC_ENABLE 3440#if EV_PERIODIC_ENABLE
2658void noinline 3441void noinline
2659ev_periodic_start (EV_P_ ev_periodic *w) 3442ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2660{ 3443{
2661 if (expect_false (ev_is_active (w))) 3444 if (expect_false (ev_is_active (w)))
2662 return; 3445 return;
2663 3446
2664 if (w->reschedule_cb) 3447 if (w->reschedule_cb)
2665 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3448 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2666 else if (w->interval) 3449 else if (w->interval)
2667 { 3450 {
2668 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3451 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2669 /* this formula differs from the one in periodic_reify because we do not always round up */ 3452 periodic_recalc (EV_A_ w);
2670 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2671 } 3453 }
2672 else 3454 else
2673 ev_at (w) = w->offset; 3455 ev_at (w) = w->offset;
2674 3456
2675 EV_FREQUENT_CHECK; 3457 EV_FREQUENT_CHECK;
… …
2685 3467
2686 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3468 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2687} 3469}
2688 3470
2689void noinline 3471void noinline
2690ev_periodic_stop (EV_P_ ev_periodic *w) 3472ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2691{ 3473{
2692 clear_pending (EV_A_ (W)w); 3474 clear_pending (EV_A_ (W)w);
2693 if (expect_false (!ev_is_active (w))) 3475 if (expect_false (!ev_is_active (w)))
2694 return; 3476 return;
2695 3477
… …
2713 3495
2714 EV_FREQUENT_CHECK; 3496 EV_FREQUENT_CHECK;
2715} 3497}
2716 3498
2717void noinline 3499void noinline
2718ev_periodic_again (EV_P_ ev_periodic *w) 3500ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2719{ 3501{
2720 /* TODO: use adjustheap and recalculation */ 3502 /* TODO: use adjustheap and recalculation */
2721 ev_periodic_stop (EV_A_ w); 3503 ev_periodic_stop (EV_A_ w);
2722 ev_periodic_start (EV_A_ w); 3504 ev_periodic_start (EV_A_ w);
2723} 3505}
… …
2725 3507
2726#ifndef SA_RESTART 3508#ifndef SA_RESTART
2727# define SA_RESTART 0 3509# define SA_RESTART 0
2728#endif 3510#endif
2729 3511
3512#if EV_SIGNAL_ENABLE
3513
2730void noinline 3514void noinline
2731ev_signal_start (EV_P_ ev_signal *w) 3515ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2732{ 3516{
2733 if (expect_false (ev_is_active (w))) 3517 if (expect_false (ev_is_active (w)))
2734 return; 3518 return;
2735 3519
2736 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3520 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2794 sa.sa_handler = ev_sighandler; 3578 sa.sa_handler = ev_sighandler;
2795 sigfillset (&sa.sa_mask); 3579 sigfillset (&sa.sa_mask);
2796 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3580 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2797 sigaction (w->signum, &sa, 0); 3581 sigaction (w->signum, &sa, 0);
2798 3582
3583 if (origflags & EVFLAG_NOSIGMASK)
3584 {
2799 sigemptyset (&sa.sa_mask); 3585 sigemptyset (&sa.sa_mask);
2800 sigaddset (&sa.sa_mask, w->signum); 3586 sigaddset (&sa.sa_mask, w->signum);
2801 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3587 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3588 }
2802#endif 3589#endif
2803 } 3590 }
2804 3591
2805 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
2806} 3593}
2807 3594
2808void noinline 3595void noinline
2809ev_signal_stop (EV_P_ ev_signal *w) 3596ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2810{ 3597{
2811 clear_pending (EV_A_ (W)w); 3598 clear_pending (EV_A_ (W)w);
2812 if (expect_false (!ev_is_active (w))) 3599 if (expect_false (!ev_is_active (w)))
2813 return; 3600 return;
2814 3601
… …
2840 } 3627 }
2841 3628
2842 EV_FREQUENT_CHECK; 3629 EV_FREQUENT_CHECK;
2843} 3630}
2844 3631
3632#endif
3633
3634#if EV_CHILD_ENABLE
3635
2845void 3636void
2846ev_child_start (EV_P_ ev_child *w) 3637ev_child_start (EV_P_ ev_child *w) EV_THROW
2847{ 3638{
2848#if EV_MULTIPLICITY 3639#if EV_MULTIPLICITY
2849 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3640 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2850#endif 3641#endif
2851 if (expect_false (ev_is_active (w))) 3642 if (expect_false (ev_is_active (w)))
2852 return; 3643 return;
2853 3644
2854 EV_FREQUENT_CHECK; 3645 EV_FREQUENT_CHECK;
2855 3646
2856 ev_start (EV_A_ (W)w, 1); 3647 ev_start (EV_A_ (W)w, 1);
2857 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3648 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2858 3649
2859 EV_FREQUENT_CHECK; 3650 EV_FREQUENT_CHECK;
2860} 3651}
2861 3652
2862void 3653void
2863ev_child_stop (EV_P_ ev_child *w) 3654ev_child_stop (EV_P_ ev_child *w) EV_THROW
2864{ 3655{
2865 clear_pending (EV_A_ (W)w); 3656 clear_pending (EV_A_ (W)w);
2866 if (expect_false (!ev_is_active (w))) 3657 if (expect_false (!ev_is_active (w)))
2867 return; 3658 return;
2868 3659
2869 EV_FREQUENT_CHECK; 3660 EV_FREQUENT_CHECK;
2870 3661
2871 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3662 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2872 ev_stop (EV_A_ (W)w); 3663 ev_stop (EV_A_ (W)w);
2873 3664
2874 EV_FREQUENT_CHECK; 3665 EV_FREQUENT_CHECK;
2875} 3666}
3667
3668#endif
2876 3669
2877#if EV_STAT_ENABLE 3670#if EV_STAT_ENABLE
2878 3671
2879# ifdef _WIN32 3672# ifdef _WIN32
2880# undef lstat 3673# undef lstat
… …
2941 if (!pend || pend == path) 3734 if (!pend || pend == path)
2942 break; 3735 break;
2943 3736
2944 *pend = 0; 3737 *pend = 0;
2945 w->wd = inotify_add_watch (fs_fd, path, mask); 3738 w->wd = inotify_add_watch (fs_fd, path, mask);
2946 } 3739 }
2947 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3740 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2948 } 3741 }
2949 } 3742 }
2950 3743
2951 if (w->wd >= 0) 3744 if (w->wd >= 0)
2952 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3745 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2953 3746
2954 /* now re-arm timer, if required */ 3747 /* now re-arm timer, if required */
2955 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3748 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2956 ev_timer_again (EV_A_ &w->timer); 3749 ev_timer_again (EV_A_ &w->timer);
2957 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3750 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2965 3758
2966 if (wd < 0) 3759 if (wd < 0)
2967 return; 3760 return;
2968 3761
2969 w->wd = -2; 3762 w->wd = -2;
2970 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3763 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2971 wlist_del (&fs_hash [slot].head, (WL)w); 3764 wlist_del (&fs_hash [slot].head, (WL)w);
2972 3765
2973 /* remove this watcher, if others are watching it, they will rearm */ 3766 /* remove this watcher, if others are watching it, they will rearm */
2974 inotify_rm_watch (fs_fd, wd); 3767 inotify_rm_watch (fs_fd, wd);
2975} 3768}
… …
2977static void noinline 3770static void noinline
2978infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3771infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2979{ 3772{
2980 if (slot < 0) 3773 if (slot < 0)
2981 /* overflow, need to check for all hash slots */ 3774 /* overflow, need to check for all hash slots */
2982 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3775 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2983 infy_wd (EV_A_ slot, wd, ev); 3776 infy_wd (EV_A_ slot, wd, ev);
2984 else 3777 else
2985 { 3778 {
2986 WL w_; 3779 WL w_;
2987 3780
2988 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3781 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2989 { 3782 {
2990 ev_stat *w = (ev_stat *)w_; 3783 ev_stat *w = (ev_stat *)w_;
2991 w_ = w_->next; /* lets us remove this watcher and all before it */ 3784 w_ = w_->next; /* lets us remove this watcher and all before it */
2992 3785
2993 if (w->wd == wd || wd == -1) 3786 if (w->wd == wd || wd == -1)
2994 { 3787 {
2995 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3788 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2996 { 3789 {
2997 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3790 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2998 w->wd = -1; 3791 w->wd = -1;
2999 infy_add (EV_A_ w); /* re-add, no matter what */ 3792 infy_add (EV_A_ w); /* re-add, no matter what */
3000 } 3793 }
3001 3794
3002 stat_timer_cb (EV_A_ &w->timer, 0); 3795 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3018 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3811 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3019 ofs += sizeof (struct inotify_event) + ev->len; 3812 ofs += sizeof (struct inotify_event) + ev->len;
3020 } 3813 }
3021} 3814}
3022 3815
3023inline_size unsigned int
3024ev_linux_version (void)
3025{
3026 struct utsname buf;
3027 unsigned int v;
3028 int i;
3029 char *p = buf.release;
3030
3031 if (uname (&buf))
3032 return 0;
3033
3034 for (i = 3+1; --i; )
3035 {
3036 unsigned int c = 0;
3037
3038 for (;;)
3039 {
3040 if (*p >= '0' && *p <= '9')
3041 c = c * 10 + *p++ - '0';
3042 else
3043 {
3044 p += *p == '.';
3045 break;
3046 }
3047 }
3048
3049 v = (v << 8) | c;
3050 }
3051
3052 return v;
3053}
3054
3055inline_size void 3816inline_size void ecb_cold
3056ev_check_2625 (EV_P) 3817ev_check_2625 (EV_P)
3057{ 3818{
3058 /* kernels < 2.6.25 are borked 3819 /* kernels < 2.6.25 are borked
3059 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3820 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3060 */ 3821 */
… …
3065} 3826}
3066 3827
3067inline_size int 3828inline_size int
3068infy_newfd (void) 3829infy_newfd (void)
3069{ 3830{
3070#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3831#if defined IN_CLOEXEC && defined IN_NONBLOCK
3071 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3832 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3072 if (fd >= 0) 3833 if (fd >= 0)
3073 return fd; 3834 return fd;
3074#endif 3835#endif
3075 return inotify_init (); 3836 return inotify_init ();
… …
3116 ev_io_set (&fs_w, fs_fd, EV_READ); 3877 ev_io_set (&fs_w, fs_fd, EV_READ);
3117 ev_io_start (EV_A_ &fs_w); 3878 ev_io_start (EV_A_ &fs_w);
3118 ev_unref (EV_A); 3879 ev_unref (EV_A);
3119 } 3880 }
3120 3881
3121 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3882 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3122 { 3883 {
3123 WL w_ = fs_hash [slot].head; 3884 WL w_ = fs_hash [slot].head;
3124 fs_hash [slot].head = 0; 3885 fs_hash [slot].head = 0;
3125 3886
3126 while (w_) 3887 while (w_)
… …
3150#else 3911#else
3151# define EV_LSTAT(p,b) lstat (p, b) 3912# define EV_LSTAT(p,b) lstat (p, b)
3152#endif 3913#endif
3153 3914
3154void 3915void
3155ev_stat_stat (EV_P_ ev_stat *w) 3916ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3156{ 3917{
3157 if (lstat (w->path, &w->attr) < 0) 3918 if (lstat (w->path, &w->attr) < 0)
3158 w->attr.st_nlink = 0; 3919 w->attr.st_nlink = 0;
3159 else if (!w->attr.st_nlink) 3920 else if (!w->attr.st_nlink)
3160 w->attr.st_nlink = 1; 3921 w->attr.st_nlink = 1;
… …
3199 ev_feed_event (EV_A_ w, EV_STAT); 3960 ev_feed_event (EV_A_ w, EV_STAT);
3200 } 3961 }
3201} 3962}
3202 3963
3203void 3964void
3204ev_stat_start (EV_P_ ev_stat *w) 3965ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3205{ 3966{
3206 if (expect_false (ev_is_active (w))) 3967 if (expect_false (ev_is_active (w)))
3207 return; 3968 return;
3208 3969
3209 ev_stat_stat (EV_A_ w); 3970 ev_stat_stat (EV_A_ w);
… …
3230 3991
3231 EV_FREQUENT_CHECK; 3992 EV_FREQUENT_CHECK;
3232} 3993}
3233 3994
3234void 3995void
3235ev_stat_stop (EV_P_ ev_stat *w) 3996ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3236{ 3997{
3237 clear_pending (EV_A_ (W)w); 3998 clear_pending (EV_A_ (W)w);
3238 if (expect_false (!ev_is_active (w))) 3999 if (expect_false (!ev_is_active (w)))
3239 return; 4000 return;
3240 4001
… …
3256} 4017}
3257#endif 4018#endif
3258 4019
3259#if EV_IDLE_ENABLE 4020#if EV_IDLE_ENABLE
3260void 4021void
3261ev_idle_start (EV_P_ ev_idle *w) 4022ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3262{ 4023{
3263 if (expect_false (ev_is_active (w))) 4024 if (expect_false (ev_is_active (w)))
3264 return; 4025 return;
3265 4026
3266 pri_adjust (EV_A_ (W)w); 4027 pri_adjust (EV_A_ (W)w);
… …
3279 4040
3280 EV_FREQUENT_CHECK; 4041 EV_FREQUENT_CHECK;
3281} 4042}
3282 4043
3283void 4044void
3284ev_idle_stop (EV_P_ ev_idle *w) 4045ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3285{ 4046{
3286 clear_pending (EV_A_ (W)w); 4047 clear_pending (EV_A_ (W)w);
3287 if (expect_false (!ev_is_active (w))) 4048 if (expect_false (!ev_is_active (w)))
3288 return; 4049 return;
3289 4050
… …
3301 4062
3302 EV_FREQUENT_CHECK; 4063 EV_FREQUENT_CHECK;
3303} 4064}
3304#endif 4065#endif
3305 4066
4067#if EV_PREPARE_ENABLE
3306void 4068void
3307ev_prepare_start (EV_P_ ev_prepare *w) 4069ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3308{ 4070{
3309 if (expect_false (ev_is_active (w))) 4071 if (expect_false (ev_is_active (w)))
3310 return; 4072 return;
3311 4073
3312 EV_FREQUENT_CHECK; 4074 EV_FREQUENT_CHECK;
… …
3317 4079
3318 EV_FREQUENT_CHECK; 4080 EV_FREQUENT_CHECK;
3319} 4081}
3320 4082
3321void 4083void
3322ev_prepare_stop (EV_P_ ev_prepare *w) 4084ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3323{ 4085{
3324 clear_pending (EV_A_ (W)w); 4086 clear_pending (EV_A_ (W)w);
3325 if (expect_false (!ev_is_active (w))) 4087 if (expect_false (!ev_is_active (w)))
3326 return; 4088 return;
3327 4089
… …
3336 4098
3337 ev_stop (EV_A_ (W)w); 4099 ev_stop (EV_A_ (W)w);
3338 4100
3339 EV_FREQUENT_CHECK; 4101 EV_FREQUENT_CHECK;
3340} 4102}
4103#endif
3341 4104
4105#if EV_CHECK_ENABLE
3342void 4106void
3343ev_check_start (EV_P_ ev_check *w) 4107ev_check_start (EV_P_ ev_check *w) EV_THROW
3344{ 4108{
3345 if (expect_false (ev_is_active (w))) 4109 if (expect_false (ev_is_active (w)))
3346 return; 4110 return;
3347 4111
3348 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
… …
3353 4117
3354 EV_FREQUENT_CHECK; 4118 EV_FREQUENT_CHECK;
3355} 4119}
3356 4120
3357void 4121void
3358ev_check_stop (EV_P_ ev_check *w) 4122ev_check_stop (EV_P_ ev_check *w) EV_THROW
3359{ 4123{
3360 clear_pending (EV_A_ (W)w); 4124 clear_pending (EV_A_ (W)w);
3361 if (expect_false (!ev_is_active (w))) 4125 if (expect_false (!ev_is_active (w)))
3362 return; 4126 return;
3363 4127
… …
3372 4136
3373 ev_stop (EV_A_ (W)w); 4137 ev_stop (EV_A_ (W)w);
3374 4138
3375 EV_FREQUENT_CHECK; 4139 EV_FREQUENT_CHECK;
3376} 4140}
4141#endif
3377 4142
3378#if EV_EMBED_ENABLE 4143#if EV_EMBED_ENABLE
3379void noinline 4144void noinline
3380ev_embed_sweep (EV_P_ ev_embed *w) 4145ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3381{ 4146{
3382 ev_loop (w->other, EVLOOP_NONBLOCK); 4147 ev_run (w->other, EVRUN_NOWAIT);
3383} 4148}
3384 4149
3385static void 4150static void
3386embed_io_cb (EV_P_ ev_io *io, int revents) 4151embed_io_cb (EV_P_ ev_io *io, int revents)
3387{ 4152{
3388 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4153 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3389 4154
3390 if (ev_cb (w)) 4155 if (ev_cb (w))
3391 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4156 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3392 else 4157 else
3393 ev_loop (w->other, EVLOOP_NONBLOCK); 4158 ev_run (w->other, EVRUN_NOWAIT);
3394} 4159}
3395 4160
3396static void 4161static void
3397embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4162embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3398{ 4163{
… …
3402 EV_P = w->other; 4167 EV_P = w->other;
3403 4168
3404 while (fdchangecnt) 4169 while (fdchangecnt)
3405 { 4170 {
3406 fd_reify (EV_A); 4171 fd_reify (EV_A);
3407 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4172 ev_run (EV_A_ EVRUN_NOWAIT);
3408 } 4173 }
3409 } 4174 }
3410} 4175}
3411 4176
3412static void 4177static void
… …
3418 4183
3419 { 4184 {
3420 EV_P = w->other; 4185 EV_P = w->other;
3421 4186
3422 ev_loop_fork (EV_A); 4187 ev_loop_fork (EV_A);
3423 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4188 ev_run (EV_A_ EVRUN_NOWAIT);
3424 } 4189 }
3425 4190
3426 ev_embed_start (EV_A_ w); 4191 ev_embed_start (EV_A_ w);
3427} 4192}
3428 4193
… …
3433 ev_idle_stop (EV_A_ idle); 4198 ev_idle_stop (EV_A_ idle);
3434} 4199}
3435#endif 4200#endif
3436 4201
3437void 4202void
3438ev_embed_start (EV_P_ ev_embed *w) 4203ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3439{ 4204{
3440 if (expect_false (ev_is_active (w))) 4205 if (expect_false (ev_is_active (w)))
3441 return; 4206 return;
3442 4207
3443 { 4208 {
… …
3464 4229
3465 EV_FREQUENT_CHECK; 4230 EV_FREQUENT_CHECK;
3466} 4231}
3467 4232
3468void 4233void
3469ev_embed_stop (EV_P_ ev_embed *w) 4234ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3470{ 4235{
3471 clear_pending (EV_A_ (W)w); 4236 clear_pending (EV_A_ (W)w);
3472 if (expect_false (!ev_is_active (w))) 4237 if (expect_false (!ev_is_active (w)))
3473 return; 4238 return;
3474 4239
… …
3484} 4249}
3485#endif 4250#endif
3486 4251
3487#if EV_FORK_ENABLE 4252#if EV_FORK_ENABLE
3488void 4253void
3489ev_fork_start (EV_P_ ev_fork *w) 4254ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3490{ 4255{
3491 if (expect_false (ev_is_active (w))) 4256 if (expect_false (ev_is_active (w)))
3492 return; 4257 return;
3493 4258
3494 EV_FREQUENT_CHECK; 4259 EV_FREQUENT_CHECK;
… …
3499 4264
3500 EV_FREQUENT_CHECK; 4265 EV_FREQUENT_CHECK;
3501} 4266}
3502 4267
3503void 4268void
3504ev_fork_stop (EV_P_ ev_fork *w) 4269ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3505{ 4270{
3506 clear_pending (EV_A_ (W)w); 4271 clear_pending (EV_A_ (W)w);
3507 if (expect_false (!ev_is_active (w))) 4272 if (expect_false (!ev_is_active (w)))
3508 return; 4273 return;
3509 4274
… …
3520 4285
3521 EV_FREQUENT_CHECK; 4286 EV_FREQUENT_CHECK;
3522} 4287}
3523#endif 4288#endif
3524 4289
4290#if EV_CLEANUP_ENABLE
4291void
4292ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4293{
4294 if (expect_false (ev_is_active (w)))
4295 return;
4296
4297 EV_FREQUENT_CHECK;
4298
4299 ev_start (EV_A_ (W)w, ++cleanupcnt);
4300 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4301 cleanups [cleanupcnt - 1] = w;
4302
4303 /* cleanup watchers should never keep a refcount on the loop */
4304 ev_unref (EV_A);
4305 EV_FREQUENT_CHECK;
4306}
4307
4308void
4309ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4310{
4311 clear_pending (EV_A_ (W)w);
4312 if (expect_false (!ev_is_active (w)))
4313 return;
4314
4315 EV_FREQUENT_CHECK;
4316 ev_ref (EV_A);
4317
4318 {
4319 int active = ev_active (w);
4320
4321 cleanups [active - 1] = cleanups [--cleanupcnt];
4322 ev_active (cleanups [active - 1]) = active;
4323 }
4324
4325 ev_stop (EV_A_ (W)w);
4326
4327 EV_FREQUENT_CHECK;
4328}
4329#endif
4330
3525#if EV_ASYNC_ENABLE 4331#if EV_ASYNC_ENABLE
3526void 4332void
3527ev_async_start (EV_P_ ev_async *w) 4333ev_async_start (EV_P_ ev_async *w) EV_THROW
3528{ 4334{
3529 if (expect_false (ev_is_active (w))) 4335 if (expect_false (ev_is_active (w)))
3530 return; 4336 return;
4337
4338 w->sent = 0;
3531 4339
3532 evpipe_init (EV_A); 4340 evpipe_init (EV_A);
3533 4341
3534 EV_FREQUENT_CHECK; 4342 EV_FREQUENT_CHECK;
3535 4343
… …
3539 4347
3540 EV_FREQUENT_CHECK; 4348 EV_FREQUENT_CHECK;
3541} 4349}
3542 4350
3543void 4351void
3544ev_async_stop (EV_P_ ev_async *w) 4352ev_async_stop (EV_P_ ev_async *w) EV_THROW
3545{ 4353{
3546 clear_pending (EV_A_ (W)w); 4354 clear_pending (EV_A_ (W)w);
3547 if (expect_false (!ev_is_active (w))) 4355 if (expect_false (!ev_is_active (w)))
3548 return; 4356 return;
3549 4357
… …
3560 4368
3561 EV_FREQUENT_CHECK; 4369 EV_FREQUENT_CHECK;
3562} 4370}
3563 4371
3564void 4372void
3565ev_async_send (EV_P_ ev_async *w) 4373ev_async_send (EV_P_ ev_async *w) EV_THROW
3566{ 4374{
3567 w->sent = 1; 4375 w->sent = 1;
3568 evpipe_write (EV_A_ &async_pending); 4376 evpipe_write (EV_A_ &async_pending);
3569} 4377}
3570#endif 4378#endif
… …
3607 4415
3608 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4416 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3609} 4417}
3610 4418
3611void 4419void
3612ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4420ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3613{ 4421{
3614 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4422 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3615 4423
3616 if (expect_false (!once)) 4424 if (expect_false (!once))
3617 { 4425 {
3618 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4426 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3619 return; 4427 return;
3620 } 4428 }
3621 4429
3622 once->cb = cb; 4430 once->cb = cb;
3623 once->arg = arg; 4431 once->arg = arg;
… …
3638} 4446}
3639 4447
3640/*****************************************************************************/ 4448/*****************************************************************************/
3641 4449
3642#if EV_WALK_ENABLE 4450#if EV_WALK_ENABLE
3643void 4451void ecb_cold
3644ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4452ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3645{ 4453{
3646 int i, j; 4454 int i, j;
3647 ev_watcher_list *wl, *wn; 4455 ev_watcher_list *wl, *wn;
3648 4456
3649 if (types & (EV_IO | EV_EMBED)) 4457 if (types & (EV_IO | EV_EMBED))
… …
3692 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4500 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3693#endif 4501#endif
3694 4502
3695#if EV_IDLE_ENABLE 4503#if EV_IDLE_ENABLE
3696 if (types & EV_IDLE) 4504 if (types & EV_IDLE)
3697 for (j = NUMPRI; i--; ) 4505 for (j = NUMPRI; j--; )
3698 for (i = idlecnt [j]; i--; ) 4506 for (i = idlecnt [j]; i--; )
3699 cb (EV_A_ EV_IDLE, idles [j][i]); 4507 cb (EV_A_ EV_IDLE, idles [j][i]);
3700#endif 4508#endif
3701 4509
3702#if EV_FORK_ENABLE 4510#if EV_FORK_ENABLE
… …
3710 if (types & EV_ASYNC) 4518 if (types & EV_ASYNC)
3711 for (i = asynccnt; i--; ) 4519 for (i = asynccnt; i--; )
3712 cb (EV_A_ EV_ASYNC, asyncs [i]); 4520 cb (EV_A_ EV_ASYNC, asyncs [i]);
3713#endif 4521#endif
3714 4522
4523#if EV_PREPARE_ENABLE
3715 if (types & EV_PREPARE) 4524 if (types & EV_PREPARE)
3716 for (i = preparecnt; i--; ) 4525 for (i = preparecnt; i--; )
3717#if EV_EMBED_ENABLE 4526# if EV_EMBED_ENABLE
3718 if (ev_cb (prepares [i]) != embed_prepare_cb) 4527 if (ev_cb (prepares [i]) != embed_prepare_cb)
3719#endif 4528# endif
3720 cb (EV_A_ EV_PREPARE, prepares [i]); 4529 cb (EV_A_ EV_PREPARE, prepares [i]);
4530#endif
3721 4531
4532#if EV_CHECK_ENABLE
3722 if (types & EV_CHECK) 4533 if (types & EV_CHECK)
3723 for (i = checkcnt; i--; ) 4534 for (i = checkcnt; i--; )
3724 cb (EV_A_ EV_CHECK, checks [i]); 4535 cb (EV_A_ EV_CHECK, checks [i]);
4536#endif
3725 4537
4538#if EV_SIGNAL_ENABLE
3726 if (types & EV_SIGNAL) 4539 if (types & EV_SIGNAL)
3727 for (i = 0; i < EV_NSIG - 1; ++i) 4540 for (i = 0; i < EV_NSIG - 1; ++i)
3728 for (wl = signals [i].head; wl; ) 4541 for (wl = signals [i].head; wl; )
3729 { 4542 {
3730 wn = wl->next; 4543 wn = wl->next;
3731 cb (EV_A_ EV_SIGNAL, wl); 4544 cb (EV_A_ EV_SIGNAL, wl);
3732 wl = wn; 4545 wl = wn;
3733 } 4546 }
4547#endif
3734 4548
4549#if EV_CHILD_ENABLE
3735 if (types & EV_CHILD) 4550 if (types & EV_CHILD)
3736 for (i = EV_PID_HASHSIZE; i--; ) 4551 for (i = (EV_PID_HASHSIZE); i--; )
3737 for (wl = childs [i]; wl; ) 4552 for (wl = childs [i]; wl; )
3738 { 4553 {
3739 wn = wl->next; 4554 wn = wl->next;
3740 cb (EV_A_ EV_CHILD, wl); 4555 cb (EV_A_ EV_CHILD, wl);
3741 wl = wn; 4556 wl = wn;
3742 } 4557 }
4558#endif
3743/* EV_STAT 0x00001000 /* stat data changed */ 4559/* EV_STAT 0x00001000 /* stat data changed */
3744/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4560/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3745} 4561}
3746#endif 4562#endif
3747 4563
3748#if EV_MULTIPLICITY 4564#if EV_MULTIPLICITY
3749 #include "ev_wrap.h" 4565 #include "ev_wrap.h"
3750#endif 4566#endif
3751 4567
3752#ifdef __cplusplus
3753}
3754#endif
3755

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