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Comparing libev/ev.c (file contents):
Revision 1.334 by root, Tue Mar 9 09:00:59 2010 UTC vs.
Revision 1.426 by root, Sun May 6 13:42:10 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>
… …
187# define EV_SELECT_IS_WINSOCKET 1 208# define EV_SELECT_IS_WINSOCKET 1
188# endif 209# endif
189# undef EV_AVOID_STDIO 210# undef EV_AVOID_STDIO
190#endif 211#endif
191 212
213/* OS X, in its infinite idiocy, actually HARDCODES
214 * a limit of 1024 into their select. Where people have brains,
215 * OS X engineers apparently have a vacuum. Or maybe they were
216 * ordered to have a vacuum, or they do anything for money.
217 * This might help. Or not.
218 */
219#define _DARWIN_UNLIMITED_SELECT 1
220
192/* this block tries to deduce configuration from header-defined symbols and defaults */ 221/* this block tries to deduce configuration from header-defined symbols and defaults */
193 222
194/* try to deduce the maximum number of signals on this platform */ 223/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 224#if defined EV_NSIG
196/* use what's provided */ 225/* use what's provided */
197#elif defined (NSIG) 226#elif defined NSIG
198# define EV_NSIG (NSIG) 227# define EV_NSIG (NSIG)
199#elif defined(_NSIG) 228#elif defined _NSIG
200# define EV_NSIG (_NSIG) 229# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX) 230#elif defined SIGMAX
202# define EV_NSIG (SIGMAX+1) 231# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX) 232#elif defined SIG_MAX
204# define EV_NSIG (SIG_MAX+1) 233# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX) 234#elif defined _SIG_MAX
206# define EV_NSIG (_SIG_MAX+1) 235# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG) 236#elif defined MAXSIG
208# define EV_NSIG (MAXSIG+1) 237# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 238#elif defined MAX_SIG
210# define EV_NSIG (MAX_SIG+1) 239# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 240#elif defined SIGARRAYSIZE
212# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 242#elif defined _sys_nsig
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 244#else
216# error "unable to find value for NSIG, please report" 245# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line */ 246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
218# define EV_NSIG 65 248# define EV_NSIG 65
249#endif
250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
219#endif 253#endif
220 254
221#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
222# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
223# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
224# else 258# else
225# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
226# endif 260# endif
227#endif 261#endif
228 262
229#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
230# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
231# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
232# else 266# else
233# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
234# endif 268# endif
235#endif 269#endif
236 270
… …
238# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239#endif 273#endif
240 274
241#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
242# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
243# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
244# else 278# else
245# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
246# endif 280# endif
247#endif 281#endif
248 282
249#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
250# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
251#endif 285#endif
252 286
253#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
254# ifdef _WIN32 288# ifdef _WIN32
255# define EV_USE_POLL 0 289# define EV_USE_POLL 0
256# else 290# else
257# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
258# endif 292# endif
259#endif 293#endif
260 294
261#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264# else 298# else
265# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
266# endif 300# endif
267#endif 301#endif
268 302
… …
274# define EV_USE_PORT 0 308# define EV_USE_PORT 0
275#endif 309#endif
276 310
277#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
280# else 314# else
281# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
282# endif 316# endif
283#endif 317#endif
284 318
285#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
286# if EV_MINIMAL 320# 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 321#endif
292 322
293#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
294# if EV_MINIMAL 324# 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 325#endif
300 326
301#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
302# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
304# else 330# else
305# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
306# endif 332# endif
307#endif 333#endif
308 334
309#ifndef EV_USE_SIGNALFD 335#ifndef EV_USE_SIGNALFD
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311# define EV_USE_SIGNALFD 1 337# define EV_USE_SIGNALFD EV_FEATURE_OS
312# else 338# else
313# define EV_USE_SIGNALFD 0 339# define EV_USE_SIGNALFD 0
314# endif 340# endif
315#endif 341#endif
316 342
… …
319# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
320# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
321#endif 347#endif
322 348
323#ifndef EV_VERIFY 349#ifndef EV_VERIFY
324# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325#endif 351#endif
326 352
327#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
328# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
329#endif 355#endif
330 356
331#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
332# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
333#endif 359#endif
334 360
335/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 361/* 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. */ 362/* which makes programs even slower. might work on other unices, too. */
337#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
338# include <syscall.h> 364# include <sys/syscall.h>
339# ifdef SYS_clock_gettime 365# ifdef SYS_clock_gettime
340# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
341# undef EV_USE_MONOTONIC 367# undef EV_USE_MONOTONIC
342# define EV_USE_MONOTONIC 1 368# define EV_USE_MONOTONIC 1
343# else 369# else
… …
368# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
369# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
370#endif 396#endif
371 397
372#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
373# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
374# include <sys/select.h> 401# include <sys/select.h>
375# endif 402# endif
376#endif 403#endif
377 404
378#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
379# include <sys/utsname.h>
380# include <sys/statfs.h> 406# include <sys/statfs.h>
381# include <sys/inotify.h> 407# include <sys/inotify.h>
382/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
383# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
384# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
401# define EFD_CLOEXEC O_CLOEXEC 427# define EFD_CLOEXEC O_CLOEXEC
402# else 428# else
403# define EFD_CLOEXEC 02000000 429# define EFD_CLOEXEC 02000000
404# endif 430# endif
405# endif 431# endif
406# ifdef __cplusplus
407extern "C" {
408# endif
409int (eventfd) (unsigned int initval, int flags); 432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410# ifdef __cplusplus
411}
412# endif
413#endif 433#endif
414 434
415#if EV_USE_SIGNALFD 435#if EV_USE_SIGNALFD
416/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 436/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
417# include <stdint.h> 437# include <stdint.h>
… …
423# define SFD_CLOEXEC O_CLOEXEC 443# define SFD_CLOEXEC O_CLOEXEC
424# else 444# else
425# define SFD_CLOEXEC 02000000 445# define SFD_CLOEXEC 02000000
426# endif 446# endif
427# endif 447# endif
428# ifdef __cplusplus
429extern "C" {
430# endif
431int signalfd (int fd, const sigset_t *mask, int flags); 448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
432 449
433struct signalfd_siginfo 450struct signalfd_siginfo
434{ 451{
435 uint32_t ssi_signo; 452 uint32_t ssi_signo;
436 char pad[128 - sizeof (uint32_t)]; 453 char pad[128 - sizeof (uint32_t)];
437}; 454};
438# ifdef __cplusplus
439}
440# endif 455#endif
441#endif
442
443 456
444/**/ 457/**/
445 458
446#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
447# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
448#else 461#else
449# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
450#endif 463#endif
451 464
452/* 465/*
453 * This is used to avoid floating point rounding problems. 466 * 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. 467 * This value is good at least till the year 4000.
458 * Better solutions welcome.
459 */ 468 */
460#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
470/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
461 471
462#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 472#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) */ 473#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
464 474
475#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
476#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
477
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */
480/*
481 * libecb - http://software.schmorp.de/pkg/libecb
482 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved.
486 *
487 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met:
489 *
490 * 1. Redistributions of source code must retain the above copyright notice,
491 * this list of conditions and the following disclaimer.
492 *
493 * 2. Redistributions in binary form must reproduce the above copyright
494 * notice, this list of conditions and the following disclaimer in the
495 * documentation and/or other materials provided with the distribution.
496 *
497 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
498 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
499 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
500 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
501 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE.
507 */
508
509#ifndef ECB_H
510#define ECB_H
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
468#else 526#else
469# define expect(expr,value) (expr) 527 #include <inttypes.h>
470# define noinline
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
472# define inline
473# endif 528#endif
529
530/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place.
536 */
537#ifndef ECB_GCC_VERSION
538 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0
540 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
474#endif 542 #endif
543#endif
475 544
545/*****************************************************************************/
546
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549
550#if ECB_NO_THREADS
551# define ECB_NO_SMP 1
552#endif
553
554#if ECB_NO_THREADS || ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0)
556#endif
557
558#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined __mips__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
584 #elif defined __alpha__
585 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
586 #endif
587 #endif
588#endif
589
590#ifndef ECB_MEMORY_FENCE
591 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
592 #define ECB_MEMORY_FENCE __sync_synchronize ()
593 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
594 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
595 #elif _MSC_VER >= 1400 /* VC++ 2005 */
596 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
597 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
598 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
599 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
600 #elif defined _WIN32
601 #include <WinNT.h>
602 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
603 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
604 #include <mbarrier.h>
605 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
606 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
607 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
608 #elif __xlC__
609 #define ECB_MEMORY_FENCE __sync ()
610 #endif
611#endif
612
613#ifndef ECB_MEMORY_FENCE
614 #if !ECB_AVOID_PTHREADS
615 /*
616 * if you get undefined symbol references to pthread_mutex_lock,
617 * or failure to find pthread.h, then you should implement
618 * the ECB_MEMORY_FENCE operations for your cpu/compiler
619 * OR provide pthread.h and link against the posix thread library
620 * of your system.
621 */
622 #include <pthread.h>
623 #define ECB_NEEDS_PTHREADS 1
624 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
625
626 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
627 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
628 #endif
629#endif
630
631#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
633#endif
634
635#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
636 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
637#endif
638
639/*****************************************************************************/
640
641#define ECB_C99 (__STDC_VERSION__ >= 199901L)
642
643#if __cplusplus
644 #define ecb_inline static inline
645#elif ECB_GCC_VERSION(2,5)
646 #define ecb_inline static __inline__
647#elif ECB_C99
648 #define ecb_inline static inline
649#else
650 #define ecb_inline static
651#endif
652
653#if ECB_GCC_VERSION(3,3)
654 #define ecb_restrict __restrict__
655#elif ECB_C99
656 #define ecb_restrict restrict
657#else
658 #define ecb_restrict
659#endif
660
661typedef int ecb_bool;
662
663#define ECB_CONCAT_(a, b) a ## b
664#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
665#define ECB_STRINGIFY_(a) # a
666#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
667
668#define ecb_function_ ecb_inline
669
670#if ECB_GCC_VERSION(3,1)
671 #define ecb_attribute(attrlist) __attribute__(attrlist)
672 #define ecb_is_constant(expr) __builtin_constant_p (expr)
673 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
674 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
675#else
676 #define ecb_attribute(attrlist)
677 #define ecb_is_constant(expr) 0
678 #define ecb_expect(expr,value) (expr)
679 #define ecb_prefetch(addr,rw,locality)
680#endif
681
682/* no emulation for ecb_decltype */
683#if ECB_GCC_VERSION(4,5)
684 #define ecb_decltype(x) __decltype(x)
685#elif ECB_GCC_VERSION(3,0)
686 #define ecb_decltype(x) __typeof(x)
687#endif
688
689#define ecb_noinline ecb_attribute ((__noinline__))
690#define ecb_noreturn ecb_attribute ((__noreturn__))
691#define ecb_unused ecb_attribute ((__unused__))
692#define ecb_const ecb_attribute ((__const__))
693#define ecb_pure ecb_attribute ((__pure__))
694
695#if ECB_GCC_VERSION(4,3)
696 #define ecb_artificial ecb_attribute ((__artificial__))
697 #define ecb_hot ecb_attribute ((__hot__))
698 #define ecb_cold ecb_attribute ((__cold__))
699#else
700 #define ecb_artificial
701 #define ecb_hot
702 #define ecb_cold
703#endif
704
705/* put around conditional expressions if you are very sure that the */
706/* expression is mostly true or mostly false. note that these return */
707/* booleans, not the expression. */
476#define expect_false(expr) expect ((expr) != 0, 0) 708#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 709#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
710/* for compatibility to the rest of the world */
711#define ecb_likely(expr) ecb_expect_true (expr)
712#define ecb_unlikely(expr) ecb_expect_false (expr)
713
714/* count trailing zero bits and count # of one bits */
715#if ECB_GCC_VERSION(3,4)
716 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
717 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
718 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
719 #define ecb_ctz32(x) __builtin_ctz (x)
720 #define ecb_ctz64(x) __builtin_ctzll (x)
721 #define ecb_popcount32(x) __builtin_popcount (x)
722 /* no popcountll */
723#else
724 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
725 ecb_function_ int
726 ecb_ctz32 (uint32_t x)
727 {
728 int r = 0;
729
730 x &= ~x + 1; /* this isolates the lowest bit */
731
732#if ECB_branchless_on_i386
733 r += !!(x & 0xaaaaaaaa) << 0;
734 r += !!(x & 0xcccccccc) << 1;
735 r += !!(x & 0xf0f0f0f0) << 2;
736 r += !!(x & 0xff00ff00) << 3;
737 r += !!(x & 0xffff0000) << 4;
738#else
739 if (x & 0xaaaaaaaa) r += 1;
740 if (x & 0xcccccccc) r += 2;
741 if (x & 0xf0f0f0f0) r += 4;
742 if (x & 0xff00ff00) r += 8;
743 if (x & 0xffff0000) r += 16;
744#endif
745
746 return r;
747 }
748
749 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
750 ecb_function_ int
751 ecb_ctz64 (uint64_t x)
752 {
753 int shift = x & 0xffffffffU ? 0 : 32;
754 return ecb_ctz32 (x >> shift) + shift;
755 }
756
757 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
758 ecb_function_ int
759 ecb_popcount32 (uint32_t x)
760 {
761 x -= (x >> 1) & 0x55555555;
762 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
763 x = ((x >> 4) + x) & 0x0f0f0f0f;
764 x *= 0x01010101;
765
766 return x >> 24;
767 }
768
769 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
770 ecb_function_ int ecb_ld32 (uint32_t x)
771 {
772 int r = 0;
773
774 if (x >> 16) { x >>= 16; r += 16; }
775 if (x >> 8) { x >>= 8; r += 8; }
776 if (x >> 4) { x >>= 4; r += 4; }
777 if (x >> 2) { x >>= 2; r += 2; }
778 if (x >> 1) { r += 1; }
779
780 return r;
781 }
782
783 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
784 ecb_function_ int ecb_ld64 (uint64_t x)
785 {
786 int r = 0;
787
788 if (x >> 32) { x >>= 32; r += 32; }
789
790 return r + ecb_ld32 (x);
791 }
792#endif
793
794ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796{
797 return ( (x * 0x0802U & 0x22110U)
798 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
799}
800
801ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
803{
804 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
805 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
806 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
807 x = ( x >> 8 ) | ( x << 8);
808
809 return x;
810}
811
812ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
814{
815 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
816 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
817 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
818 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
819 x = ( x >> 16 ) | ( x << 16);
820
821 return x;
822}
823
824/* popcount64 is only available on 64 bit cpus as gcc builtin */
825/* so for this version we are lazy */
826ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
827ecb_function_ int
828ecb_popcount64 (uint64_t x)
829{
830 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
831}
832
833ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
834ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
841
842ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
843ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
844ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
845ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
846ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
847ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
848ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
849ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
850
851#if ECB_GCC_VERSION(4,3)
852 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
853 #define ecb_bswap32(x) __builtin_bswap32 (x)
854 #define ecb_bswap64(x) __builtin_bswap64 (x)
855#else
856 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
857 ecb_function_ uint16_t
858 ecb_bswap16 (uint16_t x)
859 {
860 return ecb_rotl16 (x, 8);
861 }
862
863 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
864 ecb_function_ uint32_t
865 ecb_bswap32 (uint32_t x)
866 {
867 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
868 }
869
870 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
871 ecb_function_ uint64_t
872 ecb_bswap64 (uint64_t x)
873 {
874 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
875 }
876#endif
877
878#if ECB_GCC_VERSION(4,5)
879 #define ecb_unreachable() __builtin_unreachable ()
880#else
881 /* this seems to work fine, but gcc always emits a warning for it :/ */
882 ecb_inline void ecb_unreachable (void) ecb_noreturn;
883 ecb_inline void ecb_unreachable (void) { }
884#endif
885
886/* try to tell the compiler that some condition is definitely true */
887#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
888
889ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
890ecb_inline unsigned char
891ecb_byteorder_helper (void)
892{
893 const uint32_t u = 0x11223344;
894 return *(unsigned char *)&u;
895}
896
897ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
898ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
899ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
900ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
901
902#if ECB_GCC_VERSION(3,0) || ECB_C99
903 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
904#else
905 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
906#endif
907
908#if __cplusplus
909 template<typename T>
910 static inline T ecb_div_rd (T val, T div)
911 {
912 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
913 }
914 template<typename T>
915 static inline T ecb_div_ru (T val, T div)
916 {
917 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
918 }
919#else
920 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
921 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
922#endif
923
924#if ecb_cplusplus_does_not_suck
925 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
926 template<typename T, int N>
927 static inline int ecb_array_length (const T (&arr)[N])
928 {
929 return N;
930 }
931#else
932 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
933#endif
934
935#endif
936
937/* ECB.H END */
938
939#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
940/* if your architecture doesn't need memory fences, e.g. because it is
941 * single-cpu/core, or if you use libev in a project that doesn't use libev
942 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
943 * libev, in which cases the memory fences become nops.
944 * alternatively, you can remove this #error and link against libpthread,
945 * which will then provide the memory fences.
946 */
947# error "memory fences not defined for your architecture, please report"
948#endif
949
950#ifndef ECB_MEMORY_FENCE
951# define ECB_MEMORY_FENCE do { } while (0)
952# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
953# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
954#endif
955
956#define expect_false(cond) ecb_expect_false (cond)
957#define expect_true(cond) ecb_expect_true (cond)
958#define noinline ecb_noinline
959
478#define inline_size static inline 960#define inline_size ecb_inline
479 961
480#if EV_MINIMAL 962#if EV_FEATURE_CODE
963# define inline_speed ecb_inline
964#else
481# define inline_speed static noinline 965# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 966#endif
485 967
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 969
488#if EV_MINPRI == EV_MAXPRI 970#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
503 985
504#if EV_USE_REALTIME 986#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 987/* 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 */ 988/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 990#endif
509 991
510#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 1007# include "ev_win32.c"
526#endif 1008#endif
527 1009
528/*****************************************************************************/ 1010/*****************************************************************************/
529 1011
1012/* define a suitable floor function (only used by periodics atm) */
1013
1014#if EV_USE_FLOOR
1015# include <math.h>
1016# define ev_floor(v) floor (v)
1017#else
1018
1019#include <float.h>
1020
1021/* a floor() replacement function, should be independent of ev_tstamp type */
1022static ev_tstamp noinline
1023ev_floor (ev_tstamp v)
1024{
1025 /* the choice of shift factor is not terribly important */
1026#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1027 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1028#else
1029 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1030#endif
1031
1032 /* argument too large for an unsigned long? */
1033 if (expect_false (v >= shift))
1034 {
1035 ev_tstamp f;
1036
1037 if (v == v - 1.)
1038 return v; /* very large number */
1039
1040 f = shift * ev_floor (v * (1. / shift));
1041 return f + ev_floor (v - f);
1042 }
1043
1044 /* special treatment for negative args? */
1045 if (expect_false (v < 0.))
1046 {
1047 ev_tstamp f = -ev_floor (-v);
1048
1049 return f - (f == v ? 0 : 1);
1050 }
1051
1052 /* fits into an unsigned long */
1053 return (unsigned long)v;
1054}
1055
1056#endif
1057
1058/*****************************************************************************/
1059
1060#ifdef __linux
1061# include <sys/utsname.h>
1062#endif
1063
1064static unsigned int noinline ecb_cold
1065ev_linux_version (void)
1066{
1067#ifdef __linux
1068 unsigned int v = 0;
1069 struct utsname buf;
1070 int i;
1071 char *p = buf.release;
1072
1073 if (uname (&buf))
1074 return 0;
1075
1076 for (i = 3+1; --i; )
1077 {
1078 unsigned int c = 0;
1079
1080 for (;;)
1081 {
1082 if (*p >= '0' && *p <= '9')
1083 c = c * 10 + *p++ - '0';
1084 else
1085 {
1086 p += *p == '.';
1087 break;
1088 }
1089 }
1090
1091 v = (v << 8) | c;
1092 }
1093
1094 return v;
1095#else
1096 return 0;
1097#endif
1098}
1099
1100/*****************************************************************************/
1101
530#if EV_AVOID_STDIO 1102#if EV_AVOID_STDIO
531static void noinline 1103static void noinline ecb_cold
532ev_printerr (const char *msg) 1104ev_printerr (const char *msg)
533{ 1105{
534 write (STDERR_FILENO, msg, strlen (msg)); 1106 write (STDERR_FILENO, msg, strlen (msg));
535} 1107}
536#endif 1108#endif
537 1109
538static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
539 1111
540void 1112void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
542{ 1114{
543 syserr_cb = cb; 1115 syserr_cb = cb;
544} 1116}
545 1117
546static void noinline 1118static void noinline ecb_cold
547ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
548{ 1120{
549 if (!msg) 1121 if (!msg)
550 msg = "(libev) system error"; 1122 msg = "(libev) system error";
551 1123
552 if (syserr_cb) 1124 if (syserr_cb)
553 syserr_cb (msg); 1125 syserr_cb (msg);
554 else 1126 else
555 { 1127 {
556#if EV_AVOID_STDIO 1128#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 1129 ev_printerr (msg);
560 ev_printerr (": "); 1130 ev_printerr (": ");
561 ev_printerr (err); 1131 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 1132 ev_printerr ("\n");
563#else 1133#else
564 perror (msg); 1134 perror (msg);
565#endif 1135#endif
566 abort (); 1136 abort ();
… …
572{ 1142{
573#if __GLIBC__ 1143#if __GLIBC__
574 return realloc (ptr, size); 1144 return realloc (ptr, size);
575#else 1145#else
576 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
577 * implement realloc (x, 0) (as required by both ansi c-98 and 1147 * implement realloc (x, 0) (as required by both ansi c-89 and
578 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
579 */ 1149 */
580 1150
581 if (size) 1151 if (size)
582 return realloc (ptr, size); 1152 return realloc (ptr, size);
… …
584 free (ptr); 1154 free (ptr);
585 return 0; 1155 return 0;
586#endif 1156#endif
587} 1157}
588 1158
589static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
590 1160
591void 1161void ecb_cold
592ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
593{ 1163{
594 alloc = cb; 1164 alloc = cb;
595} 1165}
596 1166
597inline_speed void * 1167inline_speed void *
… …
600 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
601 1171
602 if (!ptr && size) 1172 if (!ptr && size)
603 { 1173 {
604#if EV_AVOID_STDIO 1174#if EV_AVOID_STDIO
605 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
606#else 1176#else
607 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
608#endif 1178#endif
609 abort (); 1179 abort ();
610 } 1180 }
611 1181
612 return ptr; 1182 return ptr;
… …
629 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1199 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
630 unsigned char unused; 1200 unsigned char unused;
631#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
632 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
633#endif 1203#endif
634#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
635 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
636#endif 1209#endif
637} ANFD; 1210} ANFD;
638 1211
639/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
640typedef struct 1213typedef struct
… …
682 #undef VAR 1255 #undef VAR
683 }; 1256 };
684 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
685 1258
686 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
687 struct ev_loop *ev_default_loop_ptr; 1260 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
688 1261
689#else 1262#else
690 1263
691 ev_tstamp ev_rt_now; 1264 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; 1265 #define VAR(name,decl) static decl;
693 #include "ev_vars.h" 1266 #include "ev_vars.h"
694 #undef VAR 1267 #undef VAR
695 1268
696 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
697 1270
698#endif 1271#endif
699 1272
700#if EV_MINIMAL < 2 1273#if EV_FEATURE_API
701# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1274# 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) 1275# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
703# define EV_INVOKE_PENDING invoke_cb (EV_A) 1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
704#else 1277#else
705# define EV_RELEASE_CB (void)0 1278# define EV_RELEASE_CB (void)0
706# define EV_ACQUIRE_CB (void)0 1279# define EV_ACQUIRE_CB (void)0
707# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
708#endif 1281#endif
709 1282
710#define EVUNLOOP_RECURSE 0x80 1283#define EVBREAK_RECURSE 0x80
711 1284
712/*****************************************************************************/ 1285/*****************************************************************************/
713 1286
714#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
715ev_tstamp 1288ev_tstamp
716ev_time (void) 1289ev_time (void) EV_THROW
717{ 1290{
718#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
719 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
720 { 1293 {
721 struct timespec ts; 1294 struct timespec ts;
… …
745 return ev_time (); 1318 return ev_time ();
746} 1319}
747 1320
748#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
749ev_tstamp 1322ev_tstamp
750ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
751{ 1324{
752 return ev_rt_now; 1325 return ev_rt_now;
753} 1326}
754#endif 1327#endif
755 1328
756void 1329void
757ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
758{ 1331{
759 if (delay > 0.) 1332 if (delay > 0.)
760 { 1333 {
761#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
762 struct timespec ts; 1335 struct timespec ts;
763 1336
764 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
765 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
766
767 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
768#elif defined(_WIN32) 1339#elif defined _WIN32
769 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
770#else 1341#else
771 struct timeval tv; 1342 struct timeval tv;
772 1343
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 */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
777 /* something not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
778 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
779 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
780#endif 1349#endif
781 } 1350 }
782} 1351}
783 1352
784/*****************************************************************************/ 1353/*****************************************************************************/
785 1354
786#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1355#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
787 1356
788/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
789/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
790inline_size int 1359inline_size int
791array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
792{ 1361{
793 int ncur = cur + 1; 1362 int ncur = cur + 1;
794 1363
795 do 1364 do
796 ncur <<= 1; 1365 ncur <<= 1;
797 while (cnt > ncur); 1366 while (cnt > ncur);
798 1367
799 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1368 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
800 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
801 { 1370 {
802 ncur *= elem; 1371 ncur *= elem;
803 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1372 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
804 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
806 } 1375 }
807 1376
808 return ncur; 1377 return ncur;
809} 1378}
810 1379
811static noinline void * 1380static void * noinline ecb_cold
812array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
813{ 1382{
814 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
815 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
816} 1385}
… …
819 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
820 1389
821#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
822 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
823 { \ 1392 { \
824 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
825 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
826 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
827 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
828 } 1397 }
829 1398
… …
847pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
848{ 1417{
849} 1418}
850 1419
851void noinline 1420void noinline
852ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
853{ 1422{
854 W w_ = (W)w; 1423 W w_ = (W)w;
855 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
856 1425
857 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
861 w_->pending = ++pendingcnt [pri]; 1430 w_->pending = ++pendingcnt [pri];
862 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1431 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
863 pendings [pri][w_->pending - 1].w = w_; 1432 pendings [pri][w_->pending - 1].w = w_;
864 pendings [pri][w_->pending - 1].events = revents; 1433 pendings [pri][w_->pending - 1].events = revents;
865 } 1434 }
1435
1436 pendingpri = NUMPRI - 1;
866} 1437}
867 1438
868inline_speed void 1439inline_speed void
869feed_reverse (EV_P_ W w) 1440feed_reverse (EV_P_ W w)
870{ 1441{
… …
890} 1461}
891 1462
892/*****************************************************************************/ 1463/*****************************************************************************/
893 1464
894inline_speed void 1465inline_speed void
895fd_event_nc (EV_P_ int fd, int revents) 1466fd_event_nocheck (EV_P_ int fd, int revents)
896{ 1467{
897 ANFD *anfd = anfds + fd; 1468 ANFD *anfd = anfds + fd;
898 ev_io *w; 1469 ev_io *w;
899 1470
900 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1471 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
912fd_event (EV_P_ int fd, int revents) 1483fd_event (EV_P_ int fd, int revents)
913{ 1484{
914 ANFD *anfd = anfds + fd; 1485 ANFD *anfd = anfds + fd;
915 1486
916 if (expect_true (!anfd->reify)) 1487 if (expect_true (!anfd->reify))
917 fd_event_nc (EV_A_ fd, revents); 1488 fd_event_nocheck (EV_A_ fd, revents);
918} 1489}
919 1490
920void 1491void
921ev_feed_fd_event (EV_P_ int fd, int revents) 1492ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
922{ 1493{
923 if (fd >= 0 && fd < anfdmax) 1494 if (fd >= 0 && fd < anfdmax)
924 fd_event_nc (EV_A_ fd, revents); 1495 fd_event_nocheck (EV_A_ fd, revents);
925} 1496}
926 1497
927/* make sure the external fd watch events are in-sync */ 1498/* make sure the external fd watch events are in-sync */
928/* with the kernel/libev internal state */ 1499/* with the kernel/libev internal state */
929inline_size void 1500inline_size void
930fd_reify (EV_P) 1501fd_reify (EV_P)
931{ 1502{
932 int i; 1503 int i;
933 1504
1505#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1506 for (i = 0; i < fdchangecnt; ++i)
1507 {
1508 int fd = fdchanges [i];
1509 ANFD *anfd = anfds + fd;
1510
1511 if (anfd->reify & EV__IOFDSET && anfd->head)
1512 {
1513 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1514
1515 if (handle != anfd->handle)
1516 {
1517 unsigned long arg;
1518
1519 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1520
1521 /* handle changed, but fd didn't - we need to do it in two steps */
1522 backend_modify (EV_A_ fd, anfd->events, 0);
1523 anfd->events = 0;
1524 anfd->handle = handle;
1525 }
1526 }
1527 }
1528#endif
1529
934 for (i = 0; i < fdchangecnt; ++i) 1530 for (i = 0; i < fdchangecnt; ++i)
935 { 1531 {
936 int fd = fdchanges [i]; 1532 int fd = fdchanges [i];
937 ANFD *anfd = anfds + fd; 1533 ANFD *anfd = anfds + fd;
938 ev_io *w; 1534 ev_io *w;
939 1535
940 unsigned char events = 0; 1536 unsigned char o_events = anfd->events;
1537 unsigned char o_reify = anfd->reify;
941 1538
942 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1539 anfd->reify = 0;
943 events |= (unsigned char)w->events;
944 1540
945#if EV_SELECT_IS_WINSOCKET 1541 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
946 if (events)
947 { 1542 {
948 unsigned long arg; 1543 anfd->events = 0;
949 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1544
950 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1545 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1546 anfd->events |= (unsigned char)w->events;
1547
1548 if (o_events != anfd->events)
1549 o_reify = EV__IOFDSET; /* actually |= */
951 } 1550 }
952#endif
953 1551
954 { 1552 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); 1553 backend_modify (EV_A_ fd, o_events, anfd->events);
963 }
964 } 1554 }
965 1555
966 fdchangecnt = 0; 1556 fdchangecnt = 0;
967} 1557}
968 1558
… …
980 fdchanges [fdchangecnt - 1] = fd; 1570 fdchanges [fdchangecnt - 1] = fd;
981 } 1571 }
982} 1572}
983 1573
984/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1574/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
985inline_speed void 1575inline_speed void ecb_cold
986fd_kill (EV_P_ int fd) 1576fd_kill (EV_P_ int fd)
987{ 1577{
988 ev_io *w; 1578 ev_io *w;
989 1579
990 while ((w = (ev_io *)anfds [fd].head)) 1580 while ((w = (ev_io *)anfds [fd].head))
… …
992 ev_io_stop (EV_A_ w); 1582 ev_io_stop (EV_A_ w);
993 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1583 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
994 } 1584 }
995} 1585}
996 1586
997/* check whether the given fd is atcually valid, for error recovery */ 1587/* check whether the given fd is actually valid, for error recovery */
998inline_size int 1588inline_size int ecb_cold
999fd_valid (int fd) 1589fd_valid (int fd)
1000{ 1590{
1001#ifdef _WIN32 1591#ifdef _WIN32
1002 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1592 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1003#else 1593#else
1004 return fcntl (fd, F_GETFD) != -1; 1594 return fcntl (fd, F_GETFD) != -1;
1005#endif 1595#endif
1006} 1596}
1007 1597
1008/* called on EBADF to verify fds */ 1598/* called on EBADF to verify fds */
1009static void noinline 1599static void noinline ecb_cold
1010fd_ebadf (EV_P) 1600fd_ebadf (EV_P)
1011{ 1601{
1012 int fd; 1602 int fd;
1013 1603
1014 for (fd = 0; fd < anfdmax; ++fd) 1604 for (fd = 0; fd < anfdmax; ++fd)
… …
1016 if (!fd_valid (fd) && errno == EBADF) 1606 if (!fd_valid (fd) && errno == EBADF)
1017 fd_kill (EV_A_ fd); 1607 fd_kill (EV_A_ fd);
1018} 1608}
1019 1609
1020/* called on ENOMEM in select/poll to kill some fds and retry */ 1610/* called on ENOMEM in select/poll to kill some fds and retry */
1021static void noinline 1611static void noinline ecb_cold
1022fd_enomem (EV_P) 1612fd_enomem (EV_P)
1023{ 1613{
1024 int fd; 1614 int fd;
1025 1615
1026 for (fd = anfdmax; fd--; ) 1616 for (fd = anfdmax; fd--; )
… …
1044 anfds [fd].emask = 0; 1634 anfds [fd].emask = 0;
1045 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1635 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1046 } 1636 }
1047} 1637}
1048 1638
1639/* used to prepare libev internal fd's */
1640/* this is not fork-safe */
1641inline_speed void
1642fd_intern (int fd)
1643{
1644#ifdef _WIN32
1645 unsigned long arg = 1;
1646 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1647#else
1648 fcntl (fd, F_SETFD, FD_CLOEXEC);
1649 fcntl (fd, F_SETFL, O_NONBLOCK);
1650#endif
1651}
1652
1049/*****************************************************************************/ 1653/*****************************************************************************/
1050 1654
1051/* 1655/*
1052 * the heap functions want a real array index. array index 0 uis guaranteed to not 1656 * 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 1657 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1054 * the branching factor of the d-tree. 1658 * the branching factor of the d-tree.
1055 */ 1659 */
1056 1660
1057/* 1661/*
… …
1205 1809
1206static ANSIG signals [EV_NSIG - 1]; 1810static ANSIG signals [EV_NSIG - 1];
1207 1811
1208/*****************************************************************************/ 1812/*****************************************************************************/
1209 1813
1210/* used to prepare libev internal fd's */ 1814#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 1815
1224static void noinline 1816static void noinline ecb_cold
1225evpipe_init (EV_P) 1817evpipe_init (EV_P)
1226{ 1818{
1227 if (!ev_is_active (&pipe_w)) 1819 if (!ev_is_active (&pipe_w))
1228 { 1820 {
1229#if EV_USE_EVENTFD 1821# if EV_USE_EVENTFD
1230 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1822 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1231 if (evfd < 0 && errno == EINVAL) 1823 if (evfd < 0 && errno == EINVAL)
1232 evfd = eventfd (0, 0); 1824 evfd = eventfd (0, 0);
1233 1825
1234 if (evfd >= 0) 1826 if (evfd >= 0)
… …
1236 evpipe [0] = -1; 1828 evpipe [0] = -1;
1237 fd_intern (evfd); /* doing it twice doesn't hurt */ 1829 fd_intern (evfd); /* doing it twice doesn't hurt */
1238 ev_io_set (&pipe_w, evfd, EV_READ); 1830 ev_io_set (&pipe_w, evfd, EV_READ);
1239 } 1831 }
1240 else 1832 else
1241#endif 1833# endif
1242 { 1834 {
1243 while (pipe (evpipe)) 1835 while (pipe (evpipe))
1244 ev_syserr ("(libev) error creating signal/async pipe"); 1836 ev_syserr ("(libev) error creating signal/async pipe");
1245 1837
1246 fd_intern (evpipe [0]); 1838 fd_intern (evpipe [0]);
… …
1251 ev_io_start (EV_A_ &pipe_w); 1843 ev_io_start (EV_A_ &pipe_w);
1252 ev_unref (EV_A); /* watcher should not keep loop alive */ 1844 ev_unref (EV_A); /* watcher should not keep loop alive */
1253 } 1845 }
1254} 1846}
1255 1847
1256inline_size void 1848inline_speed void
1257evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1849evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1258{ 1850{
1259 if (!*flag) 1851 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1852
1853 if (expect_true (*flag))
1854 return;
1855
1856 *flag = 1;
1857
1858 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1859
1860 pipe_write_skipped = 1;
1861
1862 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1863
1864 if (pipe_write_wanted)
1260 { 1865 {
1866 int old_errno;
1867
1868 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1869
1261 int old_errno = errno; /* save errno because write might clobber it */ 1870 old_errno = errno; /* save errno because write will clobber it */
1262
1263 *flag = 1;
1264 1871
1265#if EV_USE_EVENTFD 1872#if EV_USE_EVENTFD
1266 if (evfd >= 0) 1873 if (evfd >= 0)
1267 { 1874 {
1268 uint64_t counter = 1; 1875 uint64_t counter = 1;
1269 write (evfd, &counter, sizeof (uint64_t)); 1876 write (evfd, &counter, sizeof (uint64_t));
1270 } 1877 }
1271 else 1878 else
1272#endif 1879#endif
1880 {
1881 /* win32 people keep sending patches that change this write() to send() */
1882 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1883 /* so when you think this write should be a send instead, please find out */
1884 /* where your send() is from - it's definitely not the microsoft send, and */
1885 /* tell me. thank you. */
1886 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1887 /* check the ev documentation on how to use this flag */
1273 write (evpipe [1], &old_errno, 1); 1888 write (evpipe [1], &(evpipe [1]), 1);
1889 }
1274 1890
1275 errno = old_errno; 1891 errno = old_errno;
1276 } 1892 }
1277} 1893}
1278 1894
… …
1281static void 1897static void
1282pipecb (EV_P_ ev_io *iow, int revents) 1898pipecb (EV_P_ ev_io *iow, int revents)
1283{ 1899{
1284 int i; 1900 int i;
1285 1901
1902 if (revents & EV_READ)
1903 {
1286#if EV_USE_EVENTFD 1904#if EV_USE_EVENTFD
1287 if (evfd >= 0) 1905 if (evfd >= 0)
1288 { 1906 {
1289 uint64_t counter; 1907 uint64_t counter;
1290 read (evfd, &counter, sizeof (uint64_t)); 1908 read (evfd, &counter, sizeof (uint64_t));
1291 } 1909 }
1292 else 1910 else
1293#endif 1911#endif
1294 { 1912 {
1295 char dummy; 1913 char dummy;
1914 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1296 read (evpipe [0], &dummy, 1); 1915 read (evpipe [0], &dummy, 1);
1916 }
1297 } 1917 }
1298 1918
1919 pipe_write_skipped = 0;
1920
1921 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1922
1923#if EV_SIGNAL_ENABLE
1299 if (sig_pending) 1924 if (sig_pending)
1300 { 1925 {
1301 sig_pending = 0; 1926 sig_pending = 0;
1927
1928 ECB_MEMORY_FENCE_RELEASE;
1302 1929
1303 for (i = EV_NSIG - 1; i--; ) 1930 for (i = EV_NSIG - 1; i--; )
1304 if (expect_false (signals [i].pending)) 1931 if (expect_false (signals [i].pending))
1305 ev_feed_signal_event (EV_A_ i + 1); 1932 ev_feed_signal_event (EV_A_ i + 1);
1306 } 1933 }
1934#endif
1307 1935
1308#if EV_ASYNC_ENABLE 1936#if EV_ASYNC_ENABLE
1309 if (async_pending) 1937 if (async_pending)
1310 { 1938 {
1311 async_pending = 0; 1939 async_pending = 0;
1940
1941 ECB_MEMORY_FENCE_RELEASE;
1312 1942
1313 for (i = asynccnt; i--; ) 1943 for (i = asynccnt; i--; )
1314 if (asyncs [i]->sent) 1944 if (asyncs [i]->sent)
1315 { 1945 {
1316 asyncs [i]->sent = 0; 1946 asyncs [i]->sent = 0;
… …
1320#endif 1950#endif
1321} 1951}
1322 1952
1323/*****************************************************************************/ 1953/*****************************************************************************/
1324 1954
1955void
1956ev_feed_signal (int signum) EV_THROW
1957{
1958#if EV_MULTIPLICITY
1959 EV_P = signals [signum - 1].loop;
1960
1961 if (!EV_A)
1962 return;
1963#endif
1964
1965 if (!ev_active (&pipe_w))
1966 return;
1967
1968 signals [signum - 1].pending = 1;
1969 evpipe_write (EV_A_ &sig_pending);
1970}
1971
1325static void 1972static void
1326ev_sighandler (int signum) 1973ev_sighandler (int signum)
1327{ 1974{
1328#if EV_MULTIPLICITY
1329 EV_P = signals [signum - 1].loop;
1330#endif
1331
1332#ifdef _WIN32 1975#ifdef _WIN32
1333 signal (signum, ev_sighandler); 1976 signal (signum, ev_sighandler);
1334#endif 1977#endif
1335 1978
1336 signals [signum - 1].pending = 1; 1979 ev_feed_signal (signum);
1337 evpipe_write (EV_A_ &sig_pending);
1338} 1980}
1339 1981
1340void noinline 1982void noinline
1341ev_feed_signal_event (EV_P_ int signum) 1983ev_feed_signal_event (EV_P_ int signum) EV_THROW
1342{ 1984{
1343 WL w; 1985 WL w;
1344 1986
1345 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1987 if (expect_false (signum <= 0 || signum > EV_NSIG))
1346 return; 1988 return;
… …
1379 break; 2021 break;
1380 } 2022 }
1381} 2023}
1382#endif 2024#endif
1383 2025
2026#endif
2027
1384/*****************************************************************************/ 2028/*****************************************************************************/
1385 2029
2030#if EV_CHILD_ENABLE
1386static WL childs [EV_PID_HASHSIZE]; 2031static WL childs [EV_PID_HASHSIZE];
1387
1388#ifndef _WIN32
1389 2032
1390static ev_signal childev; 2033static ev_signal childev;
1391 2034
1392#ifndef WIFCONTINUED 2035#ifndef WIFCONTINUED
1393# define WIFCONTINUED(status) 0 2036# define WIFCONTINUED(status) 0
… …
1398child_reap (EV_P_ int chain, int pid, int status) 2041child_reap (EV_P_ int chain, int pid, int status)
1399{ 2042{
1400 ev_child *w; 2043 ev_child *w;
1401 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2044 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1402 2045
1403 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2046 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1404 { 2047 {
1405 if ((w->pid == pid || !w->pid) 2048 if ((w->pid == pid || !w->pid)
1406 && (!traced || (w->flags & 1))) 2049 && (!traced || (w->flags & 1)))
1407 { 2050 {
1408 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2051 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 */ 2076 /* 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 */ 2077 /* 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); 2078 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1436 2079
1437 child_reap (EV_A_ pid, pid, status); 2080 child_reap (EV_A_ pid, pid, status);
1438 if (EV_PID_HASHSIZE > 1) 2081 if ((EV_PID_HASHSIZE) > 1)
1439 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2082 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1440} 2083}
1441 2084
1442#endif 2085#endif
1443 2086
1444/*****************************************************************************/ 2087/*****************************************************************************/
1445 2088
2089#if EV_USE_IOCP
2090# include "ev_iocp.c"
2091#endif
1446#if EV_USE_PORT 2092#if EV_USE_PORT
1447# include "ev_port.c" 2093# include "ev_port.c"
1448#endif 2094#endif
1449#if EV_USE_KQUEUE 2095#if EV_USE_KQUEUE
1450# include "ev_kqueue.c" 2096# include "ev_kqueue.c"
… …
1457#endif 2103#endif
1458#if EV_USE_SELECT 2104#if EV_USE_SELECT
1459# include "ev_select.c" 2105# include "ev_select.c"
1460#endif 2106#endif
1461 2107
1462int 2108int ecb_cold
1463ev_version_major (void) 2109ev_version_major (void) EV_THROW
1464{ 2110{
1465 return EV_VERSION_MAJOR; 2111 return EV_VERSION_MAJOR;
1466} 2112}
1467 2113
1468int 2114int ecb_cold
1469ev_version_minor (void) 2115ev_version_minor (void) EV_THROW
1470{ 2116{
1471 return EV_VERSION_MINOR; 2117 return EV_VERSION_MINOR;
1472} 2118}
1473 2119
1474/* return true if we are running with elevated privileges and should ignore env variables */ 2120/* return true if we are running with elevated privileges and should ignore env variables */
1475int inline_size 2121int inline_size ecb_cold
1476enable_secure (void) 2122enable_secure (void)
1477{ 2123{
1478#ifdef _WIN32 2124#ifdef _WIN32
1479 return 0; 2125 return 0;
1480#else 2126#else
1481 return getuid () != geteuid () 2127 return getuid () != geteuid ()
1482 || getgid () != getegid (); 2128 || getgid () != getegid ();
1483#endif 2129#endif
1484} 2130}
1485 2131
1486unsigned int 2132unsigned int ecb_cold
1487ev_supported_backends (void) 2133ev_supported_backends (void) EV_THROW
1488{ 2134{
1489 unsigned int flags = 0; 2135 unsigned int flags = 0;
1490 2136
1491 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2137 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1492 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2138 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1495 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2141 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1496 2142
1497 return flags; 2143 return flags;
1498} 2144}
1499 2145
1500unsigned int 2146unsigned int ecb_cold
1501ev_recommended_backends (void) 2147ev_recommended_backends (void) EV_THROW
1502{ 2148{
1503 unsigned int flags = ev_supported_backends (); 2149 unsigned int flags = ev_supported_backends ();
1504 2150
1505#ifndef __NetBSD__ 2151#ifndef __NetBSD__
1506 /* kqueue is borked on everything but netbsd apparently */ 2152 /* kqueue is borked on everything but netbsd apparently */
… …
1510#ifdef __APPLE__ 2156#ifdef __APPLE__
1511 /* only select works correctly on that "unix-certified" platform */ 2157 /* only select works correctly on that "unix-certified" platform */
1512 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2158 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1513 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2159 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1514#endif 2160#endif
2161#ifdef __FreeBSD__
2162 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2163#endif
1515 2164
1516 return flags; 2165 return flags;
1517} 2166}
1518 2167
2168unsigned int ecb_cold
2169ev_embeddable_backends (void) EV_THROW
2170{
2171 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2172
2173 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2174 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2175 flags &= ~EVBACKEND_EPOLL;
2176
2177 return flags;
2178}
2179
1519unsigned int 2180unsigned int
1520ev_embeddable_backends (void) 2181ev_backend (EV_P) EV_THROW
1521{ 2182{
1522 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2183 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} 2184}
1530 2185
2186#if EV_FEATURE_API
1531unsigned int 2187unsigned int
1532ev_backend (EV_P) 2188ev_iteration (EV_P) EV_THROW
1533{ 2189{
1534 return backend; 2190 return loop_count;
1535} 2191}
1536 2192
1537#if EV_MINIMAL < 2
1538unsigned int 2193unsigned int
1539ev_loop_count (EV_P) 2194ev_depth (EV_P) EV_THROW
1540{
1541 return loop_count;
1542}
1543
1544unsigned int
1545ev_loop_depth (EV_P)
1546{ 2195{
1547 return loop_depth; 2196 return loop_depth;
1548} 2197}
1549 2198
1550void 2199void
1551ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2200ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1552{ 2201{
1553 io_blocktime = interval; 2202 io_blocktime = interval;
1554} 2203}
1555 2204
1556void 2205void
1557ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1558{ 2207{
1559 timeout_blocktime = interval; 2208 timeout_blocktime = interval;
1560} 2209}
1561 2210
1562void 2211void
1563ev_set_userdata (EV_P_ void *data) 2212ev_set_userdata (EV_P_ void *data) EV_THROW
1564{ 2213{
1565 userdata = data; 2214 userdata = data;
1566} 2215}
1567 2216
1568void * 2217void *
1569ev_userdata (EV_P) 2218ev_userdata (EV_P) EV_THROW
1570{ 2219{
1571 return userdata; 2220 return userdata;
1572} 2221}
1573 2222
2223void
1574void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2224ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1575{ 2225{
1576 invoke_cb = invoke_pending_cb; 2226 invoke_cb = invoke_pending_cb;
1577} 2227}
1578 2228
2229void
1579void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2230ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1580{ 2231{
1581 release_cb = release; 2232 release_cb = release;
1582 acquire_cb = acquire; 2233 acquire_cb = acquire;
1583} 2234}
1584#endif 2235#endif
1585 2236
1586/* initialise a loop structure, must be zero-initialised */ 2237/* initialise a loop structure, must be zero-initialised */
1587static void noinline 2238static void noinline ecb_cold
1588loop_init (EV_P_ unsigned int flags) 2239loop_init (EV_P_ unsigned int flags) EV_THROW
1589{ 2240{
1590 if (!backend) 2241 if (!backend)
1591 { 2242 {
2243 origflags = flags;
2244
1592#if EV_USE_REALTIME 2245#if EV_USE_REALTIME
1593 if (!have_realtime) 2246 if (!have_realtime)
1594 { 2247 {
1595 struct timespec ts; 2248 struct timespec ts;
1596 2249
… …
1618 if (!(flags & EVFLAG_NOENV) 2271 if (!(flags & EVFLAG_NOENV)
1619 && !enable_secure () 2272 && !enable_secure ()
1620 && getenv ("LIBEV_FLAGS")) 2273 && getenv ("LIBEV_FLAGS"))
1621 flags = atoi (getenv ("LIBEV_FLAGS")); 2274 flags = atoi (getenv ("LIBEV_FLAGS"));
1622 2275
1623 ev_rt_now = ev_time (); 2276 ev_rt_now = ev_time ();
1624 mn_now = get_clock (); 2277 mn_now = get_clock ();
1625 now_floor = mn_now; 2278 now_floor = mn_now;
1626 rtmn_diff = ev_rt_now - mn_now; 2279 rtmn_diff = ev_rt_now - mn_now;
1627#if EV_MINIMAL < 2 2280#if EV_FEATURE_API
1628 invoke_cb = ev_invoke_pending; 2281 invoke_cb = ev_invoke_pending;
1629#endif 2282#endif
1630 2283
1631 io_blocktime = 0.; 2284 io_blocktime = 0.;
1632 timeout_blocktime = 0.; 2285 timeout_blocktime = 0.;
1633 backend = 0; 2286 backend = 0;
1634 backend_fd = -1; 2287 backend_fd = -1;
1635 sig_pending = 0; 2288 sig_pending = 0;
1636#if EV_ASYNC_ENABLE 2289#if EV_ASYNC_ENABLE
1637 async_pending = 0; 2290 async_pending = 0;
1638#endif 2291#endif
2292 pipe_write_skipped = 0;
2293 pipe_write_wanted = 0;
1639#if EV_USE_INOTIFY 2294#if EV_USE_INOTIFY
1640 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2295 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1641#endif 2296#endif
1642#if EV_USE_SIGNALFD 2297#if EV_USE_SIGNALFD
1643 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2298 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1644#endif 2299#endif
1645 2300
1646 if (!(flags & 0x0000ffffU)) 2301 if (!(flags & EVBACKEND_MASK))
1647 flags |= ev_recommended_backends (); 2302 flags |= ev_recommended_backends ();
1648 2303
2304#if EV_USE_IOCP
2305 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2306#endif
1649#if EV_USE_PORT 2307#if EV_USE_PORT
1650 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2308 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1651#endif 2309#endif
1652#if EV_USE_KQUEUE 2310#if EV_USE_KQUEUE
1653 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2311 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1662 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1663#endif 2321#endif
1664 2322
1665 ev_prepare_init (&pending_w, pendingcb); 2323 ev_prepare_init (&pending_w, pendingcb);
1666 2324
2325#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1667 ev_init (&pipe_w, pipecb); 2326 ev_init (&pipe_w, pipecb);
1668 ev_set_priority (&pipe_w, EV_MAXPRI); 2327 ev_set_priority (&pipe_w, EV_MAXPRI);
2328#endif
1669 } 2329 }
1670} 2330}
1671 2331
1672/* free up a loop structure */ 2332/* free up a loop structure */
1673static void noinline 2333void ecb_cold
1674loop_destroy (EV_P) 2334ev_loop_destroy (EV_P)
1675{ 2335{
1676 int i; 2336 int i;
2337
2338#if EV_MULTIPLICITY
2339 /* mimic free (0) */
2340 if (!EV_A)
2341 return;
2342#endif
2343
2344#if EV_CLEANUP_ENABLE
2345 /* queue cleanup watchers (and execute them) */
2346 if (expect_false (cleanupcnt))
2347 {
2348 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2349 EV_INVOKE_PENDING;
2350 }
2351#endif
2352
2353#if EV_CHILD_ENABLE
2354 if (ev_is_active (&childev))
2355 {
2356 ev_ref (EV_A); /* child watcher */
2357 ev_signal_stop (EV_A_ &childev);
2358 }
2359#endif
1677 2360
1678 if (ev_is_active (&pipe_w)) 2361 if (ev_is_active (&pipe_w))
1679 { 2362 {
1680 /*ev_ref (EV_A);*/ 2363 /*ev_ref (EV_A);*/
1681 /*ev_io_stop (EV_A_ &pipe_w);*/ 2364 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1703#endif 2386#endif
1704 2387
1705 if (backend_fd >= 0) 2388 if (backend_fd >= 0)
1706 close (backend_fd); 2389 close (backend_fd);
1707 2390
2391#if EV_USE_IOCP
2392 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2393#endif
1708#if EV_USE_PORT 2394#if EV_USE_PORT
1709 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2395 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1710#endif 2396#endif
1711#if EV_USE_KQUEUE 2397#if EV_USE_KQUEUE
1712 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2398 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1739 array_free (periodic, EMPTY); 2425 array_free (periodic, EMPTY);
1740#endif 2426#endif
1741#if EV_FORK_ENABLE 2427#if EV_FORK_ENABLE
1742 array_free (fork, EMPTY); 2428 array_free (fork, EMPTY);
1743#endif 2429#endif
2430#if EV_CLEANUP_ENABLE
2431 array_free (cleanup, EMPTY);
2432#endif
1744 array_free (prepare, EMPTY); 2433 array_free (prepare, EMPTY);
1745 array_free (check, EMPTY); 2434 array_free (check, EMPTY);
1746#if EV_ASYNC_ENABLE 2435#if EV_ASYNC_ENABLE
1747 array_free (async, EMPTY); 2436 array_free (async, EMPTY);
1748#endif 2437#endif
1749 2438
1750 backend = 0; 2439 backend = 0;
2440
2441#if EV_MULTIPLICITY
2442 if (ev_is_default_loop (EV_A))
2443#endif
2444 ev_default_loop_ptr = 0;
2445#if EV_MULTIPLICITY
2446 else
2447 ev_free (EV_A);
2448#endif
1751} 2449}
1752 2450
1753#if EV_USE_INOTIFY 2451#if EV_USE_INOTIFY
1754inline_size void infy_fork (EV_P); 2452inline_size void infy_fork (EV_P);
1755#endif 2453#endif
… …
1770 infy_fork (EV_A); 2468 infy_fork (EV_A);
1771#endif 2469#endif
1772 2470
1773 if (ev_is_active (&pipe_w)) 2471 if (ev_is_active (&pipe_w))
1774 { 2472 {
1775 /* this "locks" the handlers against writing to the pipe */ 2473 /* 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 2474
1782 ev_ref (EV_A); 2475 ev_ref (EV_A);
1783 ev_io_stop (EV_A_ &pipe_w); 2476 ev_io_stop (EV_A_ &pipe_w);
1784 2477
1785#if EV_USE_EVENTFD 2478#if EV_USE_EVENTFD
… …
1791 { 2484 {
1792 EV_WIN32_CLOSE_FD (evpipe [0]); 2485 EV_WIN32_CLOSE_FD (evpipe [0]);
1793 EV_WIN32_CLOSE_FD (evpipe [1]); 2486 EV_WIN32_CLOSE_FD (evpipe [1]);
1794 } 2487 }
1795 2488
2489#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1796 evpipe_init (EV_A); 2490 evpipe_init (EV_A);
1797 /* now iterate over everything, in case we missed something */ 2491 /* now iterate over everything, in case we missed something */
1798 pipecb (EV_A_ &pipe_w, EV_READ); 2492 pipecb (EV_A_ &pipe_w, EV_READ);
2493#endif
1799 } 2494 }
1800 2495
1801 postfork = 0; 2496 postfork = 0;
1802} 2497}
1803 2498
1804#if EV_MULTIPLICITY 2499#if EV_MULTIPLICITY
1805 2500
1806struct ev_loop * 2501struct ev_loop * ecb_cold
1807ev_loop_new (unsigned int flags) 2502ev_loop_new (unsigned int flags) EV_THROW
1808{ 2503{
1809 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2504 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1810 2505
1811 memset (EV_A, 0, sizeof (struct ev_loop)); 2506 memset (EV_A, 0, sizeof (struct ev_loop));
1812 loop_init (EV_A_ flags); 2507 loop_init (EV_A_ flags);
1813 2508
1814 if (ev_backend (EV_A)) 2509 if (ev_backend (EV_A))
1815 return EV_A; 2510 return EV_A;
1816 2511
2512 ev_free (EV_A);
1817 return 0; 2513 return 0;
1818} 2514}
1819 2515
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 */ 2516#endif /* multiplicity */
1833 2517
1834#if EV_VERIFY 2518#if EV_VERIFY
1835static void noinline 2519static void noinline ecb_cold
1836verify_watcher (EV_P_ W w) 2520verify_watcher (EV_P_ W w)
1837{ 2521{
1838 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2522 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1839 2523
1840 if (w->pending) 2524 if (w->pending)
1841 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2525 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1842} 2526}
1843 2527
1844static void noinline 2528static void noinline ecb_cold
1845verify_heap (EV_P_ ANHE *heap, int N) 2529verify_heap (EV_P_ ANHE *heap, int N)
1846{ 2530{
1847 int i; 2531 int i;
1848 2532
1849 for (i = HEAP0; i < N + HEAP0; ++i) 2533 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1854 2538
1855 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2539 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1856 } 2540 }
1857} 2541}
1858 2542
1859static void noinline 2543static void noinline ecb_cold
1860array_verify (EV_P_ W *ws, int cnt) 2544array_verify (EV_P_ W *ws, int cnt)
1861{ 2545{
1862 while (cnt--) 2546 while (cnt--)
1863 { 2547 {
1864 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2548 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1865 verify_watcher (EV_A_ ws [cnt]); 2549 verify_watcher (EV_A_ ws [cnt]);
1866 } 2550 }
1867} 2551}
1868#endif 2552#endif
1869 2553
1870#if EV_MINIMAL < 2 2554#if EV_FEATURE_API
1871void 2555void ecb_cold
1872ev_loop_verify (EV_P) 2556ev_verify (EV_P) EV_THROW
1873{ 2557{
1874#if EV_VERIFY 2558#if EV_VERIFY
1875 int i; 2559 int i, j;
1876 WL w; 2560 WL w, w2;
1877 2561
1878 assert (activecnt >= -1); 2562 assert (activecnt >= -1);
1879 2563
1880 assert (fdchangemax >= fdchangecnt); 2564 assert (fdchangemax >= fdchangecnt);
1881 for (i = 0; i < fdchangecnt; ++i) 2565 for (i = 0; i < fdchangecnt; ++i)
1882 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2566 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1883 2567
1884 assert (anfdmax >= 0); 2568 assert (anfdmax >= 0);
1885 for (i = 0; i < anfdmax; ++i) 2569 for (i = j = 0; i < anfdmax; ++i)
1886 for (w = anfds [i].head; w; w = w->next) 2570 for (w = w2 = anfds [i].head; w; w = w->next)
1887 { 2571 {
1888 verify_watcher (EV_A_ (W)w); 2572 verify_watcher (EV_A_ (W)w);
2573
2574 if (++j & 1)
2575 w2 = w2->next;
2576
2577 assert (("libev: io watcher list contains a loop", w != w2));
1889 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2578 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)); 2579 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1891 } 2580 }
1892 2581
1893 assert (timermax >= timercnt); 2582 assert (timermax >= timercnt);
… …
1911#if EV_FORK_ENABLE 2600#if EV_FORK_ENABLE
1912 assert (forkmax >= forkcnt); 2601 assert (forkmax >= forkcnt);
1913 array_verify (EV_A_ (W *)forks, forkcnt); 2602 array_verify (EV_A_ (W *)forks, forkcnt);
1914#endif 2603#endif
1915 2604
2605#if EV_CLEANUP_ENABLE
2606 assert (cleanupmax >= cleanupcnt);
2607 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2608#endif
2609
1916#if EV_ASYNC_ENABLE 2610#if EV_ASYNC_ENABLE
1917 assert (asyncmax >= asynccnt); 2611 assert (asyncmax >= asynccnt);
1918 array_verify (EV_A_ (W *)asyncs, asynccnt); 2612 array_verify (EV_A_ (W *)asyncs, asynccnt);
1919#endif 2613#endif
1920 2614
2615#if EV_PREPARE_ENABLE
1921 assert (preparemax >= preparecnt); 2616 assert (preparemax >= preparecnt);
1922 array_verify (EV_A_ (W *)prepares, preparecnt); 2617 array_verify (EV_A_ (W *)prepares, preparecnt);
2618#endif
1923 2619
2620#if EV_CHECK_ENABLE
1924 assert (checkmax >= checkcnt); 2621 assert (checkmax >= checkcnt);
1925 array_verify (EV_A_ (W *)checks, checkcnt); 2622 array_verify (EV_A_ (W *)checks, checkcnt);
2623#endif
1926 2624
1927# if 0 2625# if 0
2626#if EV_CHILD_ENABLE
1928 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2627 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) 2628 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2629#endif
1930# endif 2630# endif
1931#endif 2631#endif
1932} 2632}
1933#endif 2633#endif
1934 2634
1935#if EV_MULTIPLICITY 2635#if EV_MULTIPLICITY
1936struct ev_loop * 2636struct ev_loop * ecb_cold
1937ev_default_loop_init (unsigned int flags)
1938#else 2637#else
1939int 2638int
2639#endif
1940ev_default_loop (unsigned int flags) 2640ev_default_loop (unsigned int flags) EV_THROW
1941#endif
1942{ 2641{
1943 if (!ev_default_loop_ptr) 2642 if (!ev_default_loop_ptr)
1944 { 2643 {
1945#if EV_MULTIPLICITY 2644#if EV_MULTIPLICITY
1946 EV_P = ev_default_loop_ptr = &default_loop_struct; 2645 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1950 2649
1951 loop_init (EV_A_ flags); 2650 loop_init (EV_A_ flags);
1952 2651
1953 if (ev_backend (EV_A)) 2652 if (ev_backend (EV_A))
1954 { 2653 {
1955#ifndef _WIN32 2654#if EV_CHILD_ENABLE
1956 ev_signal_init (&childev, childcb, SIGCHLD); 2655 ev_signal_init (&childev, childcb, SIGCHLD);
1957 ev_set_priority (&childev, EV_MAXPRI); 2656 ev_set_priority (&childev, EV_MAXPRI);
1958 ev_signal_start (EV_A_ &childev); 2657 ev_signal_start (EV_A_ &childev);
1959 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2658 ev_unref (EV_A); /* child watcher should not keep loop alive */
1960#endif 2659#endif
… …
1965 2664
1966 return ev_default_loop_ptr; 2665 return ev_default_loop_ptr;
1967} 2666}
1968 2667
1969void 2668void
1970ev_default_destroy (void) 2669ev_loop_fork (EV_P) EV_THROW
1971{ 2670{
1972#if EV_MULTIPLICITY
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 */ 2671 postfork = 1; /* must be in line with ev_default_fork */
1994} 2672}
1995 2673
1996/*****************************************************************************/ 2674/*****************************************************************************/
1997 2675
1998void 2676void
… …
2000{ 2678{
2001 EV_CB_INVOKE ((W)w, revents); 2679 EV_CB_INVOKE ((W)w, revents);
2002} 2680}
2003 2681
2004unsigned int 2682unsigned int
2005ev_pending_count (EV_P) 2683ev_pending_count (EV_P) EV_THROW
2006{ 2684{
2007 int pri; 2685 int pri;
2008 unsigned int count = 0; 2686 unsigned int count = 0;
2009 2687
2010 for (pri = NUMPRI; pri--; ) 2688 for (pri = NUMPRI; pri--; )
… …
2014} 2692}
2015 2693
2016void noinline 2694void noinline
2017ev_invoke_pending (EV_P) 2695ev_invoke_pending (EV_P)
2018{ 2696{
2019 int pri; 2697 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2020
2021 for (pri = NUMPRI; pri--; )
2022 while (pendingcnt [pri]) 2698 while (pendingcnt [pendingpri])
2023 { 2699 {
2024 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2700 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 2701
2029 p->w->pending = 0; 2702 p->w->pending = 0;
2030 EV_CB_INVOKE (p->w, p->events); 2703 EV_CB_INVOKE (p->w, p->events);
2031 EV_FREQUENT_CHECK; 2704 EV_FREQUENT_CHECK;
2032 } 2705 }
… …
2089 EV_FREQUENT_CHECK; 2762 EV_FREQUENT_CHECK;
2090 feed_reverse (EV_A_ (W)w); 2763 feed_reverse (EV_A_ (W)w);
2091 } 2764 }
2092 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2765 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2093 2766
2094 feed_reverse_done (EV_A_ EV_TIMEOUT); 2767 feed_reverse_done (EV_A_ EV_TIMER);
2095 } 2768 }
2096} 2769}
2097 2770
2098#if EV_PERIODIC_ENABLE 2771#if EV_PERIODIC_ENABLE
2772
2773static void noinline
2774periodic_recalc (EV_P_ ev_periodic *w)
2775{
2776 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2777 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2778
2779 /* the above almost always errs on the low side */
2780 while (at <= ev_rt_now)
2781 {
2782 ev_tstamp nat = at + w->interval;
2783
2784 /* when resolution fails us, we use ev_rt_now */
2785 if (expect_false (nat == at))
2786 {
2787 at = ev_rt_now;
2788 break;
2789 }
2790
2791 at = nat;
2792 }
2793
2794 ev_at (w) = at;
2795}
2796
2099/* make periodics pending */ 2797/* make periodics pending */
2100inline_size void 2798inline_size void
2101periodics_reify (EV_P) 2799periodics_reify (EV_P)
2102{ 2800{
2103 EV_FREQUENT_CHECK; 2801 EV_FREQUENT_CHECK;
… …
2122 ANHE_at_cache (periodics [HEAP0]); 2820 ANHE_at_cache (periodics [HEAP0]);
2123 downheap (periodics, periodiccnt, HEAP0); 2821 downheap (periodics, periodiccnt, HEAP0);
2124 } 2822 }
2125 else if (w->interval) 2823 else if (w->interval)
2126 { 2824 {
2127 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2825 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]); 2826 ANHE_at_cache (periodics [HEAP0]);
2142 downheap (periodics, periodiccnt, HEAP0); 2827 downheap (periodics, periodiccnt, HEAP0);
2143 } 2828 }
2144 else 2829 else
2145 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2830 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2152 feed_reverse_done (EV_A_ EV_PERIODIC); 2837 feed_reverse_done (EV_A_ EV_PERIODIC);
2153 } 2838 }
2154} 2839}
2155 2840
2156/* simply recalculate all periodics */ 2841/* simply recalculate all periodics */
2157/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2842/* TODO: maybe ensure that at least one event happens when jumping forward? */
2158static void noinline 2843static void noinline ecb_cold
2159periodics_reschedule (EV_P) 2844periodics_reschedule (EV_P)
2160{ 2845{
2161 int i; 2846 int i;
2162 2847
2163 /* adjust periodics after time jump */ 2848 /* adjust periodics after time jump */
… …
2166 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2851 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2167 2852
2168 if (w->reschedule_cb) 2853 if (w->reschedule_cb)
2169 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2854 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2170 else if (w->interval) 2855 else if (w->interval)
2171 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2856 periodic_recalc (EV_A_ w);
2172 2857
2173 ANHE_at_cache (periodics [i]); 2858 ANHE_at_cache (periodics [i]);
2174 } 2859 }
2175 2860
2176 reheap (periodics, periodiccnt); 2861 reheap (periodics, periodiccnt);
2177} 2862}
2178#endif 2863#endif
2179 2864
2180/* adjust all timers by a given offset */ 2865/* adjust all timers by a given offset */
2181static void noinline 2866static void noinline ecb_cold
2182timers_reschedule (EV_P_ ev_tstamp adjust) 2867timers_reschedule (EV_P_ ev_tstamp adjust)
2183{ 2868{
2184 int i; 2869 int i;
2185 2870
2186 for (i = 0; i < timercnt; ++i) 2871 for (i = 0; i < timercnt; ++i)
… …
2223 * doesn't hurt either as we only do this on time-jumps or 2908 * doesn't hurt either as we only do this on time-jumps or
2224 * in the unlikely event of having been preempted here. 2909 * in the unlikely event of having been preempted here.
2225 */ 2910 */
2226 for (i = 4; --i; ) 2911 for (i = 4; --i; )
2227 { 2912 {
2913 ev_tstamp diff;
2228 rtmn_diff = ev_rt_now - mn_now; 2914 rtmn_diff = ev_rt_now - mn_now;
2229 2915
2916 diff = odiff - rtmn_diff;
2917
2230 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2918 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2231 return; /* all is well */ 2919 return; /* all is well */
2232 2920
2233 ev_rt_now = ev_time (); 2921 ev_rt_now = ev_time ();
2234 mn_now = get_clock (); 2922 mn_now = get_clock ();
2235 now_floor = mn_now; 2923 now_floor = mn_now;
… …
2257 2945
2258 mn_now = ev_rt_now; 2946 mn_now = ev_rt_now;
2259 } 2947 }
2260} 2948}
2261 2949
2262void 2950int
2263ev_loop (EV_P_ int flags) 2951ev_run (EV_P_ int flags)
2264{ 2952{
2265#if EV_MINIMAL < 2 2953#if EV_FEATURE_API
2266 ++loop_depth; 2954 ++loop_depth;
2267#endif 2955#endif
2268 2956
2269 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2957 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2270 2958
2271 loop_done = EVUNLOOP_CANCEL; 2959 loop_done = EVBREAK_CANCEL;
2272 2960
2273 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2961 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2274 2962
2275 do 2963 do
2276 { 2964 {
2277#if EV_VERIFY >= 2 2965#if EV_VERIFY >= 2
2278 ev_loop_verify (EV_A); 2966 ev_verify (EV_A);
2279#endif 2967#endif
2280 2968
2281#ifndef _WIN32 2969#ifndef _WIN32
2282 if (expect_false (curpid)) /* penalise the forking check even more */ 2970 if (expect_false (curpid)) /* penalise the forking check even more */
2283 if (expect_false (getpid () != curpid)) 2971 if (expect_false (getpid () != curpid))
… …
2295 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2983 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2296 EV_INVOKE_PENDING; 2984 EV_INVOKE_PENDING;
2297 } 2985 }
2298#endif 2986#endif
2299 2987
2988#if EV_PREPARE_ENABLE
2300 /* queue prepare watchers (and execute them) */ 2989 /* queue prepare watchers (and execute them) */
2301 if (expect_false (preparecnt)) 2990 if (expect_false (preparecnt))
2302 { 2991 {
2303 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2992 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2304 EV_INVOKE_PENDING; 2993 EV_INVOKE_PENDING;
2305 } 2994 }
2995#endif
2306 2996
2307 if (expect_false (loop_done)) 2997 if (expect_false (loop_done))
2308 break; 2998 break;
2309 2999
2310 /* we might have forked, so reify kernel state if necessary */ 3000 /* we might have forked, so reify kernel state if necessary */
… …
2317 /* calculate blocking time */ 3007 /* calculate blocking time */
2318 { 3008 {
2319 ev_tstamp waittime = 0.; 3009 ev_tstamp waittime = 0.;
2320 ev_tstamp sleeptime = 0.; 3010 ev_tstamp sleeptime = 0.;
2321 3011
3012 /* remember old timestamp for io_blocktime calculation */
3013 ev_tstamp prev_mn_now = mn_now;
3014
3015 /* update time to cancel out callback processing overhead */
3016 time_update (EV_A_ 1e100);
3017
3018 /* from now on, we want a pipe-wake-up */
3019 pipe_write_wanted = 1;
3020
3021 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3022
2322 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3023 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2323 { 3024 {
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; 3025 waittime = MAX_BLOCKTIME;
2331 3026
2332 if (timercnt) 3027 if (timercnt)
2333 { 3028 {
2334 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3029 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2335 if (waittime > to) waittime = to; 3030 if (waittime > to) waittime = to;
2336 } 3031 }
2337 3032
2338#if EV_PERIODIC_ENABLE 3033#if EV_PERIODIC_ENABLE
2339 if (periodiccnt) 3034 if (periodiccnt)
2340 { 3035 {
2341 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3036 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2342 if (waittime > to) waittime = to; 3037 if (waittime > to) waittime = to;
2343 } 3038 }
2344#endif 3039#endif
2345 3040
2346 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3041 /* don't let timeouts decrease the waittime below timeout_blocktime */
2347 if (expect_false (waittime < timeout_blocktime)) 3042 if (expect_false (waittime < timeout_blocktime))
2348 waittime = timeout_blocktime; 3043 waittime = timeout_blocktime;
3044
3045 /* at this point, we NEED to wait, so we have to ensure */
3046 /* to pass a minimum nonzero value to the backend */
3047 if (expect_false (waittime < backend_mintime))
3048 waittime = backend_mintime;
2349 3049
2350 /* extra check because io_blocktime is commonly 0 */ 3050 /* extra check because io_blocktime is commonly 0 */
2351 if (expect_false (io_blocktime)) 3051 if (expect_false (io_blocktime))
2352 { 3052 {
2353 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3053 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2354 3054
2355 if (sleeptime > waittime - backend_fudge) 3055 if (sleeptime > waittime - backend_mintime)
2356 sleeptime = waittime - backend_fudge; 3056 sleeptime = waittime - backend_mintime;
2357 3057
2358 if (expect_true (sleeptime > 0.)) 3058 if (expect_true (sleeptime > 0.))
2359 { 3059 {
2360 ev_sleep (sleeptime); 3060 ev_sleep (sleeptime);
2361 waittime -= sleeptime; 3061 waittime -= sleeptime;
2362 } 3062 }
2363 } 3063 }
2364 } 3064 }
2365 3065
2366#if EV_MINIMAL < 2 3066#if EV_FEATURE_API
2367 ++loop_count; 3067 ++loop_count;
2368#endif 3068#endif
2369 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3069 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2370 backend_poll (EV_A_ waittime); 3070 backend_poll (EV_A_ waittime);
2371 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3071 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3072
3073 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3074
3075 if (pipe_write_skipped)
3076 {
3077 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3078 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3079 }
3080
2372 3081
2373 /* update ev_rt_now, do magic */ 3082 /* update ev_rt_now, do magic */
2374 time_update (EV_A_ waittime + sleeptime); 3083 time_update (EV_A_ waittime + sleeptime);
2375 } 3084 }
2376 3085
… …
2383#if EV_IDLE_ENABLE 3092#if EV_IDLE_ENABLE
2384 /* queue idle watchers unless other events are pending */ 3093 /* queue idle watchers unless other events are pending */
2385 idle_reify (EV_A); 3094 idle_reify (EV_A);
2386#endif 3095#endif
2387 3096
3097#if EV_CHECK_ENABLE
2388 /* queue check watchers, to be executed first */ 3098 /* queue check watchers, to be executed first */
2389 if (expect_false (checkcnt)) 3099 if (expect_false (checkcnt))
2390 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3100 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3101#endif
2391 3102
2392 EV_INVOKE_PENDING; 3103 EV_INVOKE_PENDING;
2393 } 3104 }
2394 while (expect_true ( 3105 while (expect_true (
2395 activecnt 3106 activecnt
2396 && !loop_done 3107 && !loop_done
2397 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3108 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2398 )); 3109 ));
2399 3110
2400 if (loop_done == EVUNLOOP_ONE) 3111 if (loop_done == EVBREAK_ONE)
2401 loop_done = EVUNLOOP_CANCEL; 3112 loop_done = EVBREAK_CANCEL;
2402 3113
2403#if EV_MINIMAL < 2 3114#if EV_FEATURE_API
2404 --loop_depth; 3115 --loop_depth;
2405#endif 3116#endif
3117
3118 return activecnt;
2406} 3119}
2407 3120
2408void 3121void
2409ev_unloop (EV_P_ int how) 3122ev_break (EV_P_ int how) EV_THROW
2410{ 3123{
2411 loop_done = how; 3124 loop_done = how;
2412} 3125}
2413 3126
2414void 3127void
2415ev_ref (EV_P) 3128ev_ref (EV_P) EV_THROW
2416{ 3129{
2417 ++activecnt; 3130 ++activecnt;
2418} 3131}
2419 3132
2420void 3133void
2421ev_unref (EV_P) 3134ev_unref (EV_P) EV_THROW
2422{ 3135{
2423 --activecnt; 3136 --activecnt;
2424} 3137}
2425 3138
2426void 3139void
2427ev_now_update (EV_P) 3140ev_now_update (EV_P) EV_THROW
2428{ 3141{
2429 time_update (EV_A_ 1e100); 3142 time_update (EV_A_ 1e100);
2430} 3143}
2431 3144
2432void 3145void
2433ev_suspend (EV_P) 3146ev_suspend (EV_P) EV_THROW
2434{ 3147{
2435 ev_now_update (EV_A); 3148 ev_now_update (EV_A);
2436} 3149}
2437 3150
2438void 3151void
2439ev_resume (EV_P) 3152ev_resume (EV_P) EV_THROW
2440{ 3153{
2441 ev_tstamp mn_prev = mn_now; 3154 ev_tstamp mn_prev = mn_now;
2442 3155
2443 ev_now_update (EV_A); 3156 ev_now_update (EV_A);
2444 timers_reschedule (EV_A_ mn_now - mn_prev); 3157 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2483 w->pending = 0; 3196 w->pending = 0;
2484 } 3197 }
2485} 3198}
2486 3199
2487int 3200int
2488ev_clear_pending (EV_P_ void *w) 3201ev_clear_pending (EV_P_ void *w) EV_THROW
2489{ 3202{
2490 W w_ = (W)w; 3203 W w_ = (W)w;
2491 int pending = w_->pending; 3204 int pending = w_->pending;
2492 3205
2493 if (expect_true (pending)) 3206 if (expect_true (pending))
… …
2526} 3239}
2527 3240
2528/*****************************************************************************/ 3241/*****************************************************************************/
2529 3242
2530void noinline 3243void noinline
2531ev_io_start (EV_P_ ev_io *w) 3244ev_io_start (EV_P_ ev_io *w) EV_THROW
2532{ 3245{
2533 int fd = w->fd; 3246 int fd = w->fd;
2534 3247
2535 if (expect_false (ev_is_active (w))) 3248 if (expect_false (ev_is_active (w)))
2536 return; 3249 return;
… …
2542 3255
2543 ev_start (EV_A_ (W)w, 1); 3256 ev_start (EV_A_ (W)w, 1);
2544 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3257 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2545 wlist_add (&anfds[fd].head, (WL)w); 3258 wlist_add (&anfds[fd].head, (WL)w);
2546 3259
3260 /* common bug, apparently */
3261 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3262
2547 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3263 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2548 w->events &= ~EV__IOFDSET; 3264 w->events &= ~EV__IOFDSET;
2549 3265
2550 EV_FREQUENT_CHECK; 3266 EV_FREQUENT_CHECK;
2551} 3267}
2552 3268
2553void noinline 3269void noinline
2554ev_io_stop (EV_P_ ev_io *w) 3270ev_io_stop (EV_P_ ev_io *w) EV_THROW
2555{ 3271{
2556 clear_pending (EV_A_ (W)w); 3272 clear_pending (EV_A_ (W)w);
2557 if (expect_false (!ev_is_active (w))) 3273 if (expect_false (!ev_is_active (w)))
2558 return; 3274 return;
2559 3275
… …
2562 EV_FREQUENT_CHECK; 3278 EV_FREQUENT_CHECK;
2563 3279
2564 wlist_del (&anfds[w->fd].head, (WL)w); 3280 wlist_del (&anfds[w->fd].head, (WL)w);
2565 ev_stop (EV_A_ (W)w); 3281 ev_stop (EV_A_ (W)w);
2566 3282
2567 fd_change (EV_A_ w->fd, 1); 3283 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2568 3284
2569 EV_FREQUENT_CHECK; 3285 EV_FREQUENT_CHECK;
2570} 3286}
2571 3287
2572void noinline 3288void noinline
2573ev_timer_start (EV_P_ ev_timer *w) 3289ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2574{ 3290{
2575 if (expect_false (ev_is_active (w))) 3291 if (expect_false (ev_is_active (w)))
2576 return; 3292 return;
2577 3293
2578 ev_at (w) += mn_now; 3294 ev_at (w) += mn_now;
… …
2592 3308
2593 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3309 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2594} 3310}
2595 3311
2596void noinline 3312void noinline
2597ev_timer_stop (EV_P_ ev_timer *w) 3313ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2598{ 3314{
2599 clear_pending (EV_A_ (W)w); 3315 clear_pending (EV_A_ (W)w);
2600 if (expect_false (!ev_is_active (w))) 3316 if (expect_false (!ev_is_active (w)))
2601 return; 3317 return;
2602 3318
… …
2622 3338
2623 EV_FREQUENT_CHECK; 3339 EV_FREQUENT_CHECK;
2624} 3340}
2625 3341
2626void noinline 3342void noinline
2627ev_timer_again (EV_P_ ev_timer *w) 3343ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2628{ 3344{
2629 EV_FREQUENT_CHECK; 3345 EV_FREQUENT_CHECK;
3346
3347 clear_pending (EV_A_ (W)w);
2630 3348
2631 if (ev_is_active (w)) 3349 if (ev_is_active (w))
2632 { 3350 {
2633 if (w->repeat) 3351 if (w->repeat)
2634 { 3352 {
… …
2647 3365
2648 EV_FREQUENT_CHECK; 3366 EV_FREQUENT_CHECK;
2649} 3367}
2650 3368
2651ev_tstamp 3369ev_tstamp
2652ev_timer_remaining (EV_P_ ev_timer *w) 3370ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2653{ 3371{
2654 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3372 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2655} 3373}
2656 3374
2657#if EV_PERIODIC_ENABLE 3375#if EV_PERIODIC_ENABLE
2658void noinline 3376void noinline
2659ev_periodic_start (EV_P_ ev_periodic *w) 3377ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2660{ 3378{
2661 if (expect_false (ev_is_active (w))) 3379 if (expect_false (ev_is_active (w)))
2662 return; 3380 return;
2663 3381
2664 if (w->reschedule_cb) 3382 if (w->reschedule_cb)
2665 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3383 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2666 else if (w->interval) 3384 else if (w->interval)
2667 { 3385 {
2668 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3386 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 */ 3387 periodic_recalc (EV_A_ w);
2670 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2671 } 3388 }
2672 else 3389 else
2673 ev_at (w) = w->offset; 3390 ev_at (w) = w->offset;
2674 3391
2675 EV_FREQUENT_CHECK; 3392 EV_FREQUENT_CHECK;
… …
2685 3402
2686 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3403 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2687} 3404}
2688 3405
2689void noinline 3406void noinline
2690ev_periodic_stop (EV_P_ ev_periodic *w) 3407ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2691{ 3408{
2692 clear_pending (EV_A_ (W)w); 3409 clear_pending (EV_A_ (W)w);
2693 if (expect_false (!ev_is_active (w))) 3410 if (expect_false (!ev_is_active (w)))
2694 return; 3411 return;
2695 3412
… …
2713 3430
2714 EV_FREQUENT_CHECK; 3431 EV_FREQUENT_CHECK;
2715} 3432}
2716 3433
2717void noinline 3434void noinline
2718ev_periodic_again (EV_P_ ev_periodic *w) 3435ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2719{ 3436{
2720 /* TODO: use adjustheap and recalculation */ 3437 /* TODO: use adjustheap and recalculation */
2721 ev_periodic_stop (EV_A_ w); 3438 ev_periodic_stop (EV_A_ w);
2722 ev_periodic_start (EV_A_ w); 3439 ev_periodic_start (EV_A_ w);
2723} 3440}
… …
2725 3442
2726#ifndef SA_RESTART 3443#ifndef SA_RESTART
2727# define SA_RESTART 0 3444# define SA_RESTART 0
2728#endif 3445#endif
2729 3446
3447#if EV_SIGNAL_ENABLE
3448
2730void noinline 3449void noinline
2731ev_signal_start (EV_P_ ev_signal *w) 3450ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2732{ 3451{
2733 if (expect_false (ev_is_active (w))) 3452 if (expect_false (ev_is_active (w)))
2734 return; 3453 return;
2735 3454
2736 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3455 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2794 sa.sa_handler = ev_sighandler; 3513 sa.sa_handler = ev_sighandler;
2795 sigfillset (&sa.sa_mask); 3514 sigfillset (&sa.sa_mask);
2796 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3515 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2797 sigaction (w->signum, &sa, 0); 3516 sigaction (w->signum, &sa, 0);
2798 3517
3518 if (origflags & EVFLAG_NOSIGMASK)
3519 {
2799 sigemptyset (&sa.sa_mask); 3520 sigemptyset (&sa.sa_mask);
2800 sigaddset (&sa.sa_mask, w->signum); 3521 sigaddset (&sa.sa_mask, w->signum);
2801 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3522 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3523 }
2802#endif 3524#endif
2803 } 3525 }
2804 3526
2805 EV_FREQUENT_CHECK; 3527 EV_FREQUENT_CHECK;
2806} 3528}
2807 3529
2808void noinline 3530void noinline
2809ev_signal_stop (EV_P_ ev_signal *w) 3531ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2810{ 3532{
2811 clear_pending (EV_A_ (W)w); 3533 clear_pending (EV_A_ (W)w);
2812 if (expect_false (!ev_is_active (w))) 3534 if (expect_false (!ev_is_active (w)))
2813 return; 3535 return;
2814 3536
… …
2840 } 3562 }
2841 3563
2842 EV_FREQUENT_CHECK; 3564 EV_FREQUENT_CHECK;
2843} 3565}
2844 3566
3567#endif
3568
3569#if EV_CHILD_ENABLE
3570
2845void 3571void
2846ev_child_start (EV_P_ ev_child *w) 3572ev_child_start (EV_P_ ev_child *w) EV_THROW
2847{ 3573{
2848#if EV_MULTIPLICITY 3574#if EV_MULTIPLICITY
2849 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3575 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2850#endif 3576#endif
2851 if (expect_false (ev_is_active (w))) 3577 if (expect_false (ev_is_active (w)))
2852 return; 3578 return;
2853 3579
2854 EV_FREQUENT_CHECK; 3580 EV_FREQUENT_CHECK;
2855 3581
2856 ev_start (EV_A_ (W)w, 1); 3582 ev_start (EV_A_ (W)w, 1);
2857 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3583 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2858 3584
2859 EV_FREQUENT_CHECK; 3585 EV_FREQUENT_CHECK;
2860} 3586}
2861 3587
2862void 3588void
2863ev_child_stop (EV_P_ ev_child *w) 3589ev_child_stop (EV_P_ ev_child *w) EV_THROW
2864{ 3590{
2865 clear_pending (EV_A_ (W)w); 3591 clear_pending (EV_A_ (W)w);
2866 if (expect_false (!ev_is_active (w))) 3592 if (expect_false (!ev_is_active (w)))
2867 return; 3593 return;
2868 3594
2869 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
2870 3596
2871 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3597 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2872 ev_stop (EV_A_ (W)w); 3598 ev_stop (EV_A_ (W)w);
2873 3599
2874 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
2875} 3601}
3602
3603#endif
2876 3604
2877#if EV_STAT_ENABLE 3605#if EV_STAT_ENABLE
2878 3606
2879# ifdef _WIN32 3607# ifdef _WIN32
2880# undef lstat 3608# undef lstat
… …
2941 if (!pend || pend == path) 3669 if (!pend || pend == path)
2942 break; 3670 break;
2943 3671
2944 *pend = 0; 3672 *pend = 0;
2945 w->wd = inotify_add_watch (fs_fd, path, mask); 3673 w->wd = inotify_add_watch (fs_fd, path, mask);
2946 } 3674 }
2947 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3675 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2948 } 3676 }
2949 } 3677 }
2950 3678
2951 if (w->wd >= 0) 3679 if (w->wd >= 0)
2952 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3680 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2953 3681
2954 /* now re-arm timer, if required */ 3682 /* now re-arm timer, if required */
2955 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3683 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2956 ev_timer_again (EV_A_ &w->timer); 3684 ev_timer_again (EV_A_ &w->timer);
2957 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3685 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2965 3693
2966 if (wd < 0) 3694 if (wd < 0)
2967 return; 3695 return;
2968 3696
2969 w->wd = -2; 3697 w->wd = -2;
2970 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3698 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2971 wlist_del (&fs_hash [slot].head, (WL)w); 3699 wlist_del (&fs_hash [slot].head, (WL)w);
2972 3700
2973 /* remove this watcher, if others are watching it, they will rearm */ 3701 /* remove this watcher, if others are watching it, they will rearm */
2974 inotify_rm_watch (fs_fd, wd); 3702 inotify_rm_watch (fs_fd, wd);
2975} 3703}
… …
2977static void noinline 3705static void noinline
2978infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3706infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2979{ 3707{
2980 if (slot < 0) 3708 if (slot < 0)
2981 /* overflow, need to check for all hash slots */ 3709 /* overflow, need to check for all hash slots */
2982 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3710 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2983 infy_wd (EV_A_ slot, wd, ev); 3711 infy_wd (EV_A_ slot, wd, ev);
2984 else 3712 else
2985 { 3713 {
2986 WL w_; 3714 WL w_;
2987 3715
2988 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3716 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2989 { 3717 {
2990 ev_stat *w = (ev_stat *)w_; 3718 ev_stat *w = (ev_stat *)w_;
2991 w_ = w_->next; /* lets us remove this watcher and all before it */ 3719 w_ = w_->next; /* lets us remove this watcher and all before it */
2992 3720
2993 if (w->wd == wd || wd == -1) 3721 if (w->wd == wd || wd == -1)
2994 { 3722 {
2995 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3723 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2996 { 3724 {
2997 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3725 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2998 w->wd = -1; 3726 w->wd = -1;
2999 infy_add (EV_A_ w); /* re-add, no matter what */ 3727 infy_add (EV_A_ w); /* re-add, no matter what */
3000 } 3728 }
3001 3729
3002 stat_timer_cb (EV_A_ &w->timer, 0); 3730 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3018 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3746 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3019 ofs += sizeof (struct inotify_event) + ev->len; 3747 ofs += sizeof (struct inotify_event) + ev->len;
3020 } 3748 }
3021} 3749}
3022 3750
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 3751inline_size void ecb_cold
3056ev_check_2625 (EV_P) 3752ev_check_2625 (EV_P)
3057{ 3753{
3058 /* kernels < 2.6.25 are borked 3754 /* kernels < 2.6.25 are borked
3059 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3755 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3060 */ 3756 */
… …
3065} 3761}
3066 3762
3067inline_size int 3763inline_size int
3068infy_newfd (void) 3764infy_newfd (void)
3069{ 3765{
3070#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3766#if defined IN_CLOEXEC && defined IN_NONBLOCK
3071 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3767 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3072 if (fd >= 0) 3768 if (fd >= 0)
3073 return fd; 3769 return fd;
3074#endif 3770#endif
3075 return inotify_init (); 3771 return inotify_init ();
… …
3116 ev_io_set (&fs_w, fs_fd, EV_READ); 3812 ev_io_set (&fs_w, fs_fd, EV_READ);
3117 ev_io_start (EV_A_ &fs_w); 3813 ev_io_start (EV_A_ &fs_w);
3118 ev_unref (EV_A); 3814 ev_unref (EV_A);
3119 } 3815 }
3120 3816
3121 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3817 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3122 { 3818 {
3123 WL w_ = fs_hash [slot].head; 3819 WL w_ = fs_hash [slot].head;
3124 fs_hash [slot].head = 0; 3820 fs_hash [slot].head = 0;
3125 3821
3126 while (w_) 3822 while (w_)
… …
3150#else 3846#else
3151# define EV_LSTAT(p,b) lstat (p, b) 3847# define EV_LSTAT(p,b) lstat (p, b)
3152#endif 3848#endif
3153 3849
3154void 3850void
3155ev_stat_stat (EV_P_ ev_stat *w) 3851ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3156{ 3852{
3157 if (lstat (w->path, &w->attr) < 0) 3853 if (lstat (w->path, &w->attr) < 0)
3158 w->attr.st_nlink = 0; 3854 w->attr.st_nlink = 0;
3159 else if (!w->attr.st_nlink) 3855 else if (!w->attr.st_nlink)
3160 w->attr.st_nlink = 1; 3856 w->attr.st_nlink = 1;
… …
3199 ev_feed_event (EV_A_ w, EV_STAT); 3895 ev_feed_event (EV_A_ w, EV_STAT);
3200 } 3896 }
3201} 3897}
3202 3898
3203void 3899void
3204ev_stat_start (EV_P_ ev_stat *w) 3900ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3205{ 3901{
3206 if (expect_false (ev_is_active (w))) 3902 if (expect_false (ev_is_active (w)))
3207 return; 3903 return;
3208 3904
3209 ev_stat_stat (EV_A_ w); 3905 ev_stat_stat (EV_A_ w);
… …
3230 3926
3231 EV_FREQUENT_CHECK; 3927 EV_FREQUENT_CHECK;
3232} 3928}
3233 3929
3234void 3930void
3235ev_stat_stop (EV_P_ ev_stat *w) 3931ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3236{ 3932{
3237 clear_pending (EV_A_ (W)w); 3933 clear_pending (EV_A_ (W)w);
3238 if (expect_false (!ev_is_active (w))) 3934 if (expect_false (!ev_is_active (w)))
3239 return; 3935 return;
3240 3936
… …
3256} 3952}
3257#endif 3953#endif
3258 3954
3259#if EV_IDLE_ENABLE 3955#if EV_IDLE_ENABLE
3260void 3956void
3261ev_idle_start (EV_P_ ev_idle *w) 3957ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3262{ 3958{
3263 if (expect_false (ev_is_active (w))) 3959 if (expect_false (ev_is_active (w)))
3264 return; 3960 return;
3265 3961
3266 pri_adjust (EV_A_ (W)w); 3962 pri_adjust (EV_A_ (W)w);
… …
3279 3975
3280 EV_FREQUENT_CHECK; 3976 EV_FREQUENT_CHECK;
3281} 3977}
3282 3978
3283void 3979void
3284ev_idle_stop (EV_P_ ev_idle *w) 3980ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3285{ 3981{
3286 clear_pending (EV_A_ (W)w); 3982 clear_pending (EV_A_ (W)w);
3287 if (expect_false (!ev_is_active (w))) 3983 if (expect_false (!ev_is_active (w)))
3288 return; 3984 return;
3289 3985
… …
3301 3997
3302 EV_FREQUENT_CHECK; 3998 EV_FREQUENT_CHECK;
3303} 3999}
3304#endif 4000#endif
3305 4001
4002#if EV_PREPARE_ENABLE
3306void 4003void
3307ev_prepare_start (EV_P_ ev_prepare *w) 4004ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3308{ 4005{
3309 if (expect_false (ev_is_active (w))) 4006 if (expect_false (ev_is_active (w)))
3310 return; 4007 return;
3311 4008
3312 EV_FREQUENT_CHECK; 4009 EV_FREQUENT_CHECK;
… …
3317 4014
3318 EV_FREQUENT_CHECK; 4015 EV_FREQUENT_CHECK;
3319} 4016}
3320 4017
3321void 4018void
3322ev_prepare_stop (EV_P_ ev_prepare *w) 4019ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3323{ 4020{
3324 clear_pending (EV_A_ (W)w); 4021 clear_pending (EV_A_ (W)w);
3325 if (expect_false (!ev_is_active (w))) 4022 if (expect_false (!ev_is_active (w)))
3326 return; 4023 return;
3327 4024
… …
3336 4033
3337 ev_stop (EV_A_ (W)w); 4034 ev_stop (EV_A_ (W)w);
3338 4035
3339 EV_FREQUENT_CHECK; 4036 EV_FREQUENT_CHECK;
3340} 4037}
4038#endif
3341 4039
4040#if EV_CHECK_ENABLE
3342void 4041void
3343ev_check_start (EV_P_ ev_check *w) 4042ev_check_start (EV_P_ ev_check *w) EV_THROW
3344{ 4043{
3345 if (expect_false (ev_is_active (w))) 4044 if (expect_false (ev_is_active (w)))
3346 return; 4045 return;
3347 4046
3348 EV_FREQUENT_CHECK; 4047 EV_FREQUENT_CHECK;
… …
3353 4052
3354 EV_FREQUENT_CHECK; 4053 EV_FREQUENT_CHECK;
3355} 4054}
3356 4055
3357void 4056void
3358ev_check_stop (EV_P_ ev_check *w) 4057ev_check_stop (EV_P_ ev_check *w) EV_THROW
3359{ 4058{
3360 clear_pending (EV_A_ (W)w); 4059 clear_pending (EV_A_ (W)w);
3361 if (expect_false (!ev_is_active (w))) 4060 if (expect_false (!ev_is_active (w)))
3362 return; 4061 return;
3363 4062
… …
3372 4071
3373 ev_stop (EV_A_ (W)w); 4072 ev_stop (EV_A_ (W)w);
3374 4073
3375 EV_FREQUENT_CHECK; 4074 EV_FREQUENT_CHECK;
3376} 4075}
4076#endif
3377 4077
3378#if EV_EMBED_ENABLE 4078#if EV_EMBED_ENABLE
3379void noinline 4079void noinline
3380ev_embed_sweep (EV_P_ ev_embed *w) 4080ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3381{ 4081{
3382 ev_loop (w->other, EVLOOP_NONBLOCK); 4082 ev_run (w->other, EVRUN_NOWAIT);
3383} 4083}
3384 4084
3385static void 4085static void
3386embed_io_cb (EV_P_ ev_io *io, int revents) 4086embed_io_cb (EV_P_ ev_io *io, int revents)
3387{ 4087{
3388 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4088 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3389 4089
3390 if (ev_cb (w)) 4090 if (ev_cb (w))
3391 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4091 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3392 else 4092 else
3393 ev_loop (w->other, EVLOOP_NONBLOCK); 4093 ev_run (w->other, EVRUN_NOWAIT);
3394} 4094}
3395 4095
3396static void 4096static void
3397embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4097embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3398{ 4098{
… …
3402 EV_P = w->other; 4102 EV_P = w->other;
3403 4103
3404 while (fdchangecnt) 4104 while (fdchangecnt)
3405 { 4105 {
3406 fd_reify (EV_A); 4106 fd_reify (EV_A);
3407 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4107 ev_run (EV_A_ EVRUN_NOWAIT);
3408 } 4108 }
3409 } 4109 }
3410} 4110}
3411 4111
3412static void 4112static void
… …
3418 4118
3419 { 4119 {
3420 EV_P = w->other; 4120 EV_P = w->other;
3421 4121
3422 ev_loop_fork (EV_A); 4122 ev_loop_fork (EV_A);
3423 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4123 ev_run (EV_A_ EVRUN_NOWAIT);
3424 } 4124 }
3425 4125
3426 ev_embed_start (EV_A_ w); 4126 ev_embed_start (EV_A_ w);
3427} 4127}
3428 4128
… …
3433 ev_idle_stop (EV_A_ idle); 4133 ev_idle_stop (EV_A_ idle);
3434} 4134}
3435#endif 4135#endif
3436 4136
3437void 4137void
3438ev_embed_start (EV_P_ ev_embed *w) 4138ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3439{ 4139{
3440 if (expect_false (ev_is_active (w))) 4140 if (expect_false (ev_is_active (w)))
3441 return; 4141 return;
3442 4142
3443 { 4143 {
… …
3464 4164
3465 EV_FREQUENT_CHECK; 4165 EV_FREQUENT_CHECK;
3466} 4166}
3467 4167
3468void 4168void
3469ev_embed_stop (EV_P_ ev_embed *w) 4169ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3470{ 4170{
3471 clear_pending (EV_A_ (W)w); 4171 clear_pending (EV_A_ (W)w);
3472 if (expect_false (!ev_is_active (w))) 4172 if (expect_false (!ev_is_active (w)))
3473 return; 4173 return;
3474 4174
… …
3484} 4184}
3485#endif 4185#endif
3486 4186
3487#if EV_FORK_ENABLE 4187#if EV_FORK_ENABLE
3488void 4188void
3489ev_fork_start (EV_P_ ev_fork *w) 4189ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3490{ 4190{
3491 if (expect_false (ev_is_active (w))) 4191 if (expect_false (ev_is_active (w)))
3492 return; 4192 return;
3493 4193
3494 EV_FREQUENT_CHECK; 4194 EV_FREQUENT_CHECK;
… …
3499 4199
3500 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3501} 4201}
3502 4202
3503void 4203void
3504ev_fork_stop (EV_P_ ev_fork *w) 4204ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3505{ 4205{
3506 clear_pending (EV_A_ (W)w); 4206 clear_pending (EV_A_ (W)w);
3507 if (expect_false (!ev_is_active (w))) 4207 if (expect_false (!ev_is_active (w)))
3508 return; 4208 return;
3509 4209
… …
3520 4220
3521 EV_FREQUENT_CHECK; 4221 EV_FREQUENT_CHECK;
3522} 4222}
3523#endif 4223#endif
3524 4224
4225#if EV_CLEANUP_ENABLE
4226void
4227ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4228{
4229 if (expect_false (ev_is_active (w)))
4230 return;
4231
4232 EV_FREQUENT_CHECK;
4233
4234 ev_start (EV_A_ (W)w, ++cleanupcnt);
4235 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4236 cleanups [cleanupcnt - 1] = w;
4237
4238 /* cleanup watchers should never keep a refcount on the loop */
4239 ev_unref (EV_A);
4240 EV_FREQUENT_CHECK;
4241}
4242
4243void
4244ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4245{
4246 clear_pending (EV_A_ (W)w);
4247 if (expect_false (!ev_is_active (w)))
4248 return;
4249
4250 EV_FREQUENT_CHECK;
4251 ev_ref (EV_A);
4252
4253 {
4254 int active = ev_active (w);
4255
4256 cleanups [active - 1] = cleanups [--cleanupcnt];
4257 ev_active (cleanups [active - 1]) = active;
4258 }
4259
4260 ev_stop (EV_A_ (W)w);
4261
4262 EV_FREQUENT_CHECK;
4263}
4264#endif
4265
3525#if EV_ASYNC_ENABLE 4266#if EV_ASYNC_ENABLE
3526void 4267void
3527ev_async_start (EV_P_ ev_async *w) 4268ev_async_start (EV_P_ ev_async *w) EV_THROW
3528{ 4269{
3529 if (expect_false (ev_is_active (w))) 4270 if (expect_false (ev_is_active (w)))
3530 return; 4271 return;
4272
4273 w->sent = 0;
3531 4274
3532 evpipe_init (EV_A); 4275 evpipe_init (EV_A);
3533 4276
3534 EV_FREQUENT_CHECK; 4277 EV_FREQUENT_CHECK;
3535 4278
… …
3539 4282
3540 EV_FREQUENT_CHECK; 4283 EV_FREQUENT_CHECK;
3541} 4284}
3542 4285
3543void 4286void
3544ev_async_stop (EV_P_ ev_async *w) 4287ev_async_stop (EV_P_ ev_async *w) EV_THROW
3545{ 4288{
3546 clear_pending (EV_A_ (W)w); 4289 clear_pending (EV_A_ (W)w);
3547 if (expect_false (!ev_is_active (w))) 4290 if (expect_false (!ev_is_active (w)))
3548 return; 4291 return;
3549 4292
… …
3560 4303
3561 EV_FREQUENT_CHECK; 4304 EV_FREQUENT_CHECK;
3562} 4305}
3563 4306
3564void 4307void
3565ev_async_send (EV_P_ ev_async *w) 4308ev_async_send (EV_P_ ev_async *w) EV_THROW
3566{ 4309{
3567 w->sent = 1; 4310 w->sent = 1;
3568 evpipe_write (EV_A_ &async_pending); 4311 evpipe_write (EV_A_ &async_pending);
3569} 4312}
3570#endif 4313#endif
… …
3607 4350
3608 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4351 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3609} 4352}
3610 4353
3611void 4354void
3612ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4355ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3613{ 4356{
3614 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4357 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3615 4358
3616 if (expect_false (!once)) 4359 if (expect_false (!once))
3617 { 4360 {
3618 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4361 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3619 return; 4362 return;
3620 } 4363 }
3621 4364
3622 once->cb = cb; 4365 once->cb = cb;
3623 once->arg = arg; 4366 once->arg = arg;
… …
3638} 4381}
3639 4382
3640/*****************************************************************************/ 4383/*****************************************************************************/
3641 4384
3642#if EV_WALK_ENABLE 4385#if EV_WALK_ENABLE
3643void 4386void ecb_cold
3644ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4387ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3645{ 4388{
3646 int i, j; 4389 int i, j;
3647 ev_watcher_list *wl, *wn; 4390 ev_watcher_list *wl, *wn;
3648 4391
3649 if (types & (EV_IO | EV_EMBED)) 4392 if (types & (EV_IO | EV_EMBED))
… …
3692 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4435 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3693#endif 4436#endif
3694 4437
3695#if EV_IDLE_ENABLE 4438#if EV_IDLE_ENABLE
3696 if (types & EV_IDLE) 4439 if (types & EV_IDLE)
3697 for (j = NUMPRI; i--; ) 4440 for (j = NUMPRI; j--; )
3698 for (i = idlecnt [j]; i--; ) 4441 for (i = idlecnt [j]; i--; )
3699 cb (EV_A_ EV_IDLE, idles [j][i]); 4442 cb (EV_A_ EV_IDLE, idles [j][i]);
3700#endif 4443#endif
3701 4444
3702#if EV_FORK_ENABLE 4445#if EV_FORK_ENABLE
… …
3710 if (types & EV_ASYNC) 4453 if (types & EV_ASYNC)
3711 for (i = asynccnt; i--; ) 4454 for (i = asynccnt; i--; )
3712 cb (EV_A_ EV_ASYNC, asyncs [i]); 4455 cb (EV_A_ EV_ASYNC, asyncs [i]);
3713#endif 4456#endif
3714 4457
4458#if EV_PREPARE_ENABLE
3715 if (types & EV_PREPARE) 4459 if (types & EV_PREPARE)
3716 for (i = preparecnt; i--; ) 4460 for (i = preparecnt; i--; )
3717#if EV_EMBED_ENABLE 4461# if EV_EMBED_ENABLE
3718 if (ev_cb (prepares [i]) != embed_prepare_cb) 4462 if (ev_cb (prepares [i]) != embed_prepare_cb)
3719#endif 4463# endif
3720 cb (EV_A_ EV_PREPARE, prepares [i]); 4464 cb (EV_A_ EV_PREPARE, prepares [i]);
4465#endif
3721 4466
4467#if EV_CHECK_ENABLE
3722 if (types & EV_CHECK) 4468 if (types & EV_CHECK)
3723 for (i = checkcnt; i--; ) 4469 for (i = checkcnt; i--; )
3724 cb (EV_A_ EV_CHECK, checks [i]); 4470 cb (EV_A_ EV_CHECK, checks [i]);
4471#endif
3725 4472
4473#if EV_SIGNAL_ENABLE
3726 if (types & EV_SIGNAL) 4474 if (types & EV_SIGNAL)
3727 for (i = 0; i < EV_NSIG - 1; ++i) 4475 for (i = 0; i < EV_NSIG - 1; ++i)
3728 for (wl = signals [i].head; wl; ) 4476 for (wl = signals [i].head; wl; )
3729 { 4477 {
3730 wn = wl->next; 4478 wn = wl->next;
3731 cb (EV_A_ EV_SIGNAL, wl); 4479 cb (EV_A_ EV_SIGNAL, wl);
3732 wl = wn; 4480 wl = wn;
3733 } 4481 }
4482#endif
3734 4483
4484#if EV_CHILD_ENABLE
3735 if (types & EV_CHILD) 4485 if (types & EV_CHILD)
3736 for (i = EV_PID_HASHSIZE; i--; ) 4486 for (i = (EV_PID_HASHSIZE); i--; )
3737 for (wl = childs [i]; wl; ) 4487 for (wl = childs [i]; wl; )
3738 { 4488 {
3739 wn = wl->next; 4489 wn = wl->next;
3740 cb (EV_A_ EV_CHILD, wl); 4490 cb (EV_A_ EV_CHILD, wl);
3741 wl = wn; 4491 wl = wn;
3742 } 4492 }
4493#endif
3743/* EV_STAT 0x00001000 /* stat data changed */ 4494/* EV_STAT 0x00001000 /* stat data changed */
3744/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4495/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3745} 4496}
3746#endif 4497#endif
3747 4498
3748#if EV_MULTIPLICITY 4499#if EV_MULTIPLICITY
3749 #include "ev_wrap.h" 4500 #include "ev_wrap.h"
3750#endif 4501#endif
3751 4502
3752#ifdef __cplusplus
3753}
3754#endif
3755

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