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Comparing libev/ev.c (file contents):
Revision 1.332 by root, Tue Mar 9 08:58:17 2010 UTC vs.
Revision 1.427 by root, Sun May 6 19:29:59 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 ();
… …
568} 1138}
569 1139
570static void * 1140static void *
571ev_realloc_emul (void *ptr, long size) 1141ev_realloc_emul (void *ptr, long size)
572{ 1142{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
573 /* some systems, notably openbsd and darwin, fail to properly 1146 /* some systems, notably openbsd and darwin, fail to properly
574 * 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
575 * the single unix specification, so work around them here. 1148 * the single unix specification, so work around them here.
576 */ 1149 */
1150
577 if (size) 1151 if (size)
578 return realloc (ptr, size); 1152 return realloc (ptr, size);
579 1153
580 free (ptr); 1154 free (ptr);
581 return 0; 1155 return 0;
1156#endif
582} 1157}
583 1158
584static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
585 1160
586void 1161void ecb_cold
587ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
588{ 1163{
589 alloc = cb; 1164 alloc = cb;
590} 1165}
591 1166
592inline_speed void * 1167inline_speed void *
… …
595 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
596 1171
597 if (!ptr && size) 1172 if (!ptr && size)
598 { 1173 {
599#if EV_AVOID_STDIO 1174#if EV_AVOID_STDIO
600 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
601#else 1176#else
602 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
603#endif 1178#endif
604 abort (); 1179 abort ();
605 } 1180 }
606 1181
607 return ptr; 1182 return ptr;
… …
624 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 */
625 unsigned char unused; 1200 unsigned char unused;
626#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
627 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
628#endif 1203#endif
629#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
630 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
631#endif 1209#endif
632} ANFD; 1210} ANFD;
633 1211
634/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
635typedef struct 1213typedef struct
… …
677 #undef VAR 1255 #undef VAR
678 }; 1256 };
679 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
680 1258
681 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
682 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 */
683 1261
684#else 1262#else
685 1263
686 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 */
687 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
688 #include "ev_vars.h" 1266 #include "ev_vars.h"
689 #undef VAR 1267 #undef VAR
690 1268
691 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
692 1270
693#endif 1271#endif
694 1272
695#if EV_MINIMAL < 2 1273#if EV_FEATURE_API
696# 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)
697# 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)
698# define EV_INVOKE_PENDING invoke_cb (EV_A) 1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
699#else 1277#else
700# define EV_RELEASE_CB (void)0 1278# define EV_RELEASE_CB (void)0
701# define EV_ACQUIRE_CB (void)0 1279# define EV_ACQUIRE_CB (void)0
702# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
703#endif 1281#endif
704 1282
705#define EVUNLOOP_RECURSE 0x80 1283#define EVBREAK_RECURSE 0x80
706 1284
707/*****************************************************************************/ 1285/*****************************************************************************/
708 1286
709#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
710ev_tstamp 1288ev_tstamp
711ev_time (void) 1289ev_time (void) EV_THROW
712{ 1290{
713#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
714 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
715 { 1293 {
716 struct timespec ts; 1294 struct timespec ts;
… …
740 return ev_time (); 1318 return ev_time ();
741} 1319}
742 1320
743#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
744ev_tstamp 1322ev_tstamp
745ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
746{ 1324{
747 return ev_rt_now; 1325 return ev_rt_now;
748} 1326}
749#endif 1327#endif
750 1328
751void 1329void
752ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
753{ 1331{
754 if (delay > 0.) 1332 if (delay > 0.)
755 { 1333 {
756#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
757 struct timespec ts; 1335 struct timespec ts;
758 1336
759 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
760 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
761
762 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
763#elif defined(_WIN32) 1339#elif defined _WIN32
764 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
765#else 1341#else
766 struct timeval tv; 1342 struct timeval tv;
767 1343
768 tv.tv_sec = (time_t)delay;
769 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
770
771 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
772 /* something not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
773 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
774 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
775#endif 1349#endif
776 } 1350 }
777} 1351}
778 1352
779/*****************************************************************************/ 1353/*****************************************************************************/
780 1354
781#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 */
782 1356
783/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
784/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
785inline_size int 1359inline_size int
786array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
787{ 1361{
788 int ncur = cur + 1; 1362 int ncur = cur + 1;
789 1363
790 do 1364 do
791 ncur <<= 1; 1365 ncur <<= 1;
792 while (cnt > ncur); 1366 while (cnt > ncur);
793 1367
794 /* 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 */
795 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
796 { 1370 {
797 ncur *= elem; 1371 ncur *= elem;
798 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);
799 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
801 } 1375 }
802 1376
803 return ncur; 1377 return ncur;
804} 1378}
805 1379
806static noinline void * 1380static void * noinline ecb_cold
807array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
808{ 1382{
809 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
810 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
811} 1385}
… …
814 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
815 1389
816#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
817 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
818 { \ 1392 { \
819 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
820 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
821 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
822 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
823 } 1397 }
824 1398
… …
842pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
843{ 1417{
844} 1418}
845 1419
846void noinline 1420void noinline
847ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
848{ 1422{
849 W w_ = (W)w; 1423 W w_ = (W)w;
850 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
851 1425
852 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
856 w_->pending = ++pendingcnt [pri]; 1430 w_->pending = ++pendingcnt [pri];
857 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1431 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
858 pendings [pri][w_->pending - 1].w = w_; 1432 pendings [pri][w_->pending - 1].w = w_;
859 pendings [pri][w_->pending - 1].events = revents; 1433 pendings [pri][w_->pending - 1].events = revents;
860 } 1434 }
1435
1436 pendingpri = NUMPRI - 1;
861} 1437}
862 1438
863inline_speed void 1439inline_speed void
864feed_reverse (EV_P_ W w) 1440feed_reverse (EV_P_ W w)
865{ 1441{
… …
885} 1461}
886 1462
887/*****************************************************************************/ 1463/*****************************************************************************/
888 1464
889inline_speed void 1465inline_speed void
890fd_event_nc (EV_P_ int fd, int revents) 1466fd_event_nocheck (EV_P_ int fd, int revents)
891{ 1467{
892 ANFD *anfd = anfds + fd; 1468 ANFD *anfd = anfds + fd;
893 ev_io *w; 1469 ev_io *w;
894 1470
895 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)
… …
907fd_event (EV_P_ int fd, int revents) 1483fd_event (EV_P_ int fd, int revents)
908{ 1484{
909 ANFD *anfd = anfds + fd; 1485 ANFD *anfd = anfds + fd;
910 1486
911 if (expect_true (!anfd->reify)) 1487 if (expect_true (!anfd->reify))
912 fd_event_nc (EV_A_ fd, revents); 1488 fd_event_nocheck (EV_A_ fd, revents);
913} 1489}
914 1490
915void 1491void
916ev_feed_fd_event (EV_P_ int fd, int revents) 1492ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
917{ 1493{
918 if (fd >= 0 && fd < anfdmax) 1494 if (fd >= 0 && fd < anfdmax)
919 fd_event_nc (EV_A_ fd, revents); 1495 fd_event_nocheck (EV_A_ fd, revents);
920} 1496}
921 1497
922/* make sure the external fd watch events are in-sync */ 1498/* make sure the external fd watch events are in-sync */
923/* with the kernel/libev internal state */ 1499/* with the kernel/libev internal state */
924inline_size void 1500inline_size void
925fd_reify (EV_P) 1501fd_reify (EV_P)
926{ 1502{
927 int i; 1503 int i;
928 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
929 for (i = 0; i < fdchangecnt; ++i) 1530 for (i = 0; i < fdchangecnt; ++i)
930 { 1531 {
931 int fd = fdchanges [i]; 1532 int fd = fdchanges [i];
932 ANFD *anfd = anfds + fd; 1533 ANFD *anfd = anfds + fd;
933 ev_io *w; 1534 ev_io *w;
934 1535
935 unsigned char events = 0; 1536 unsigned char o_events = anfd->events;
1537 unsigned char o_reify = anfd->reify;
936 1538
937 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1539 anfd->reify = 0;
938 events |= (unsigned char)w->events;
939 1540
940#if EV_SELECT_IS_WINSOCKET 1541 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
941 if (events)
942 { 1542 {
943 unsigned long arg; 1543 anfd->events = 0;
944 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1544
945 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 |= */
946 } 1550 }
947#endif
948 1551
949 { 1552 if (o_reify & EV__IOFDSET)
950 unsigned char o_events = anfd->events;
951 unsigned char o_reify = anfd->reify;
952
953 anfd->reify = 0;
954 anfd->events = events;
955
956 if (o_events != events || o_reify & EV__IOFDSET)
957 backend_modify (EV_A_ fd, o_events, events); 1553 backend_modify (EV_A_ fd, o_events, anfd->events);
958 }
959 } 1554 }
960 1555
961 fdchangecnt = 0; 1556 fdchangecnt = 0;
962} 1557}
963 1558
… …
975 fdchanges [fdchangecnt - 1] = fd; 1570 fdchanges [fdchangecnt - 1] = fd;
976 } 1571 }
977} 1572}
978 1573
979/* 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 */
980inline_speed void 1575inline_speed void ecb_cold
981fd_kill (EV_P_ int fd) 1576fd_kill (EV_P_ int fd)
982{ 1577{
983 ev_io *w; 1578 ev_io *w;
984 1579
985 while ((w = (ev_io *)anfds [fd].head)) 1580 while ((w = (ev_io *)anfds [fd].head))
… …
987 ev_io_stop (EV_A_ w); 1582 ev_io_stop (EV_A_ w);
988 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);
989 } 1584 }
990} 1585}
991 1586
992/* check whether the given fd is atcually valid, for error recovery */ 1587/* check whether the given fd is actually valid, for error recovery */
993inline_size int 1588inline_size int ecb_cold
994fd_valid (int fd) 1589fd_valid (int fd)
995{ 1590{
996#ifdef _WIN32 1591#ifdef _WIN32
997 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1592 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
998#else 1593#else
999 return fcntl (fd, F_GETFD) != -1; 1594 return fcntl (fd, F_GETFD) != -1;
1000#endif 1595#endif
1001} 1596}
1002 1597
1003/* called on EBADF to verify fds */ 1598/* called on EBADF to verify fds */
1004static void noinline 1599static void noinline ecb_cold
1005fd_ebadf (EV_P) 1600fd_ebadf (EV_P)
1006{ 1601{
1007 int fd; 1602 int fd;
1008 1603
1009 for (fd = 0; fd < anfdmax; ++fd) 1604 for (fd = 0; fd < anfdmax; ++fd)
… …
1011 if (!fd_valid (fd) && errno == EBADF) 1606 if (!fd_valid (fd) && errno == EBADF)
1012 fd_kill (EV_A_ fd); 1607 fd_kill (EV_A_ fd);
1013} 1608}
1014 1609
1015/* 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 */
1016static void noinline 1611static void noinline ecb_cold
1017fd_enomem (EV_P) 1612fd_enomem (EV_P)
1018{ 1613{
1019 int fd; 1614 int fd;
1020 1615
1021 for (fd = anfdmax; fd--; ) 1616 for (fd = anfdmax; fd--; )
… …
1039 anfds [fd].emask = 0; 1634 anfds [fd].emask = 0;
1040 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1635 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1041 } 1636 }
1042} 1637}
1043 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
1044/*****************************************************************************/ 1653/*****************************************************************************/
1045 1654
1046/* 1655/*
1047 * 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
1048 * 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
1049 * the branching factor of the d-tree. 1658 * the branching factor of the d-tree.
1050 */ 1659 */
1051 1660
1052/* 1661/*
… …
1200 1809
1201static ANSIG signals [EV_NSIG - 1]; 1810static ANSIG signals [EV_NSIG - 1];
1202 1811
1203/*****************************************************************************/ 1812/*****************************************************************************/
1204 1813
1205/* used to prepare libev internal fd's */ 1814#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1206/* this is not fork-safe */
1207inline_speed void
1208fd_intern (int fd)
1209{
1210#ifdef _WIN32
1211 unsigned long arg = 1;
1212 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1213#else
1214 fcntl (fd, F_SETFD, FD_CLOEXEC);
1215 fcntl (fd, F_SETFL, O_NONBLOCK);
1216#endif
1217}
1218 1815
1219static void noinline 1816static void noinline ecb_cold
1220evpipe_init (EV_P) 1817evpipe_init (EV_P)
1221{ 1818{
1222 if (!ev_is_active (&pipe_w)) 1819 if (!ev_is_active (&pipe_w))
1223 { 1820 {
1224#if EV_USE_EVENTFD 1821# if EV_USE_EVENTFD
1225 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1822 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1226 if (evfd < 0 && errno == EINVAL) 1823 if (evfd < 0 && errno == EINVAL)
1227 evfd = eventfd (0, 0); 1824 evfd = eventfd (0, 0);
1228 1825
1229 if (evfd >= 0) 1826 if (evfd >= 0)
… …
1231 evpipe [0] = -1; 1828 evpipe [0] = -1;
1232 fd_intern (evfd); /* doing it twice doesn't hurt */ 1829 fd_intern (evfd); /* doing it twice doesn't hurt */
1233 ev_io_set (&pipe_w, evfd, EV_READ); 1830 ev_io_set (&pipe_w, evfd, EV_READ);
1234 } 1831 }
1235 else 1832 else
1236#endif 1833# endif
1237 { 1834 {
1238 while (pipe (evpipe)) 1835 while (pipe (evpipe))
1239 ev_syserr ("(libev) error creating signal/async pipe"); 1836 ev_syserr ("(libev) error creating signal/async pipe");
1240 1837
1241 fd_intern (evpipe [0]); 1838 fd_intern (evpipe [0]);
… …
1246 ev_io_start (EV_A_ &pipe_w); 1843 ev_io_start (EV_A_ &pipe_w);
1247 ev_unref (EV_A); /* watcher should not keep loop alive */ 1844 ev_unref (EV_A); /* watcher should not keep loop alive */
1248 } 1845 }
1249} 1846}
1250 1847
1251inline_size void 1848inline_speed void
1252evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1849evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1253{ 1850{
1254 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)
1255 { 1865 {
1866 int old_errno;
1867
1868 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1869
1256 int old_errno = errno; /* save errno because write might clobber it */ 1870 old_errno = errno; /* save errno because write will clobber it */
1257
1258 *flag = 1;
1259 1871
1260#if EV_USE_EVENTFD 1872#if EV_USE_EVENTFD
1261 if (evfd >= 0) 1873 if (evfd >= 0)
1262 { 1874 {
1263 uint64_t counter = 1; 1875 uint64_t counter = 1;
1264 write (evfd, &counter, sizeof (uint64_t)); 1876 write (evfd, &counter, sizeof (uint64_t));
1265 } 1877 }
1266 else 1878 else
1267#endif 1879#endif
1880 {
1881#ifdef _WIN32
1882 WSABUF buf;
1883 DWORD sent;
1884 buf.buf = &buf;
1885 buf.len = 1;
1886 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1887#else
1268 write (evpipe [1], &old_errno, 1); 1888 write (evpipe [1], &(evpipe [1]), 1);
1889#endif
1890 }
1269 1891
1270 errno = old_errno; 1892 errno = old_errno;
1271 } 1893 }
1272} 1894}
1273 1895
… …
1276static void 1898static void
1277pipecb (EV_P_ ev_io *iow, int revents) 1899pipecb (EV_P_ ev_io *iow, int revents)
1278{ 1900{
1279 int i; 1901 int i;
1280 1902
1903 if (revents & EV_READ)
1904 {
1281#if EV_USE_EVENTFD 1905#if EV_USE_EVENTFD
1282 if (evfd >= 0) 1906 if (evfd >= 0)
1283 { 1907 {
1284 uint64_t counter; 1908 uint64_t counter;
1285 read (evfd, &counter, sizeof (uint64_t)); 1909 read (evfd, &counter, sizeof (uint64_t));
1286 } 1910 }
1287 else 1911 else
1288#endif 1912#endif
1289 { 1913 {
1290 char dummy; 1914 char dummy[4];
1915#ifdef _WIN32
1916 WSABUF buf;
1917 DWORD recvd;
1918 buf.buf = dummy;
1919 buf.len = sizeof (dummy);
1920 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0);
1921#else
1291 read (evpipe [0], &dummy, 1); 1922 read (evpipe [0], &dummy, sizeof (dummy));
1923#endif
1924 }
1292 } 1925 }
1293 1926
1927 pipe_write_skipped = 0;
1928
1929 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1930
1931#if EV_SIGNAL_ENABLE
1294 if (sig_pending) 1932 if (sig_pending)
1295 { 1933 {
1296 sig_pending = 0; 1934 sig_pending = 0;
1935
1936 ECB_MEMORY_FENCE_RELEASE;
1297 1937
1298 for (i = EV_NSIG - 1; i--; ) 1938 for (i = EV_NSIG - 1; i--; )
1299 if (expect_false (signals [i].pending)) 1939 if (expect_false (signals [i].pending))
1300 ev_feed_signal_event (EV_A_ i + 1); 1940 ev_feed_signal_event (EV_A_ i + 1);
1301 } 1941 }
1942#endif
1302 1943
1303#if EV_ASYNC_ENABLE 1944#if EV_ASYNC_ENABLE
1304 if (async_pending) 1945 if (async_pending)
1305 { 1946 {
1306 async_pending = 0; 1947 async_pending = 0;
1948
1949 ECB_MEMORY_FENCE_RELEASE;
1307 1950
1308 for (i = asynccnt; i--; ) 1951 for (i = asynccnt; i--; )
1309 if (asyncs [i]->sent) 1952 if (asyncs [i]->sent)
1310 { 1953 {
1311 asyncs [i]->sent = 0; 1954 asyncs [i]->sent = 0;
… …
1315#endif 1958#endif
1316} 1959}
1317 1960
1318/*****************************************************************************/ 1961/*****************************************************************************/
1319 1962
1963void
1964ev_feed_signal (int signum) EV_THROW
1965{
1966#if EV_MULTIPLICITY
1967 EV_P = signals [signum - 1].loop;
1968
1969 if (!EV_A)
1970 return;
1971#endif
1972
1973 if (!ev_active (&pipe_w))
1974 return;
1975
1976 signals [signum - 1].pending = 1;
1977 evpipe_write (EV_A_ &sig_pending);
1978}
1979
1320static void 1980static void
1321ev_sighandler (int signum) 1981ev_sighandler (int signum)
1322{ 1982{
1323#if EV_MULTIPLICITY
1324 EV_P = signals [signum - 1].loop;
1325#endif
1326
1327#ifdef _WIN32 1983#ifdef _WIN32
1328 signal (signum, ev_sighandler); 1984 signal (signum, ev_sighandler);
1329#endif 1985#endif
1330 1986
1331 signals [signum - 1].pending = 1; 1987 ev_feed_signal (signum);
1332 evpipe_write (EV_A_ &sig_pending);
1333} 1988}
1334 1989
1335void noinline 1990void noinline
1336ev_feed_signal_event (EV_P_ int signum) 1991ev_feed_signal_event (EV_P_ int signum) EV_THROW
1337{ 1992{
1338 WL w; 1993 WL w;
1339 1994
1340 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1995 if (expect_false (signum <= 0 || signum > EV_NSIG))
1341 return; 1996 return;
… …
1374 break; 2029 break;
1375 } 2030 }
1376} 2031}
1377#endif 2032#endif
1378 2033
2034#endif
2035
1379/*****************************************************************************/ 2036/*****************************************************************************/
1380 2037
2038#if EV_CHILD_ENABLE
1381static WL childs [EV_PID_HASHSIZE]; 2039static WL childs [EV_PID_HASHSIZE];
1382
1383#ifndef _WIN32
1384 2040
1385static ev_signal childev; 2041static ev_signal childev;
1386 2042
1387#ifndef WIFCONTINUED 2043#ifndef WIFCONTINUED
1388# define WIFCONTINUED(status) 0 2044# define WIFCONTINUED(status) 0
… …
1393child_reap (EV_P_ int chain, int pid, int status) 2049child_reap (EV_P_ int chain, int pid, int status)
1394{ 2050{
1395 ev_child *w; 2051 ev_child *w;
1396 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2052 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1397 2053
1398 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2054 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1399 { 2055 {
1400 if ((w->pid == pid || !w->pid) 2056 if ((w->pid == pid || !w->pid)
1401 && (!traced || (w->flags & 1))) 2057 && (!traced || (w->flags & 1)))
1402 { 2058 {
1403 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2059 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1428 /* make sure we are called again until all children have been reaped */ 2084 /* make sure we are called again until all children have been reaped */
1429 /* we need to do it this way so that the callback gets called before we continue */ 2085 /* we need to do it this way so that the callback gets called before we continue */
1430 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2086 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1431 2087
1432 child_reap (EV_A_ pid, pid, status); 2088 child_reap (EV_A_ pid, pid, status);
1433 if (EV_PID_HASHSIZE > 1) 2089 if ((EV_PID_HASHSIZE) > 1)
1434 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2090 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1435} 2091}
1436 2092
1437#endif 2093#endif
1438 2094
1439/*****************************************************************************/ 2095/*****************************************************************************/
1440 2096
2097#if EV_USE_IOCP
2098# include "ev_iocp.c"
2099#endif
1441#if EV_USE_PORT 2100#if EV_USE_PORT
1442# include "ev_port.c" 2101# include "ev_port.c"
1443#endif 2102#endif
1444#if EV_USE_KQUEUE 2103#if EV_USE_KQUEUE
1445# include "ev_kqueue.c" 2104# include "ev_kqueue.c"
… …
1452#endif 2111#endif
1453#if EV_USE_SELECT 2112#if EV_USE_SELECT
1454# include "ev_select.c" 2113# include "ev_select.c"
1455#endif 2114#endif
1456 2115
1457int 2116int ecb_cold
1458ev_version_major (void) 2117ev_version_major (void) EV_THROW
1459{ 2118{
1460 return EV_VERSION_MAJOR; 2119 return EV_VERSION_MAJOR;
1461} 2120}
1462 2121
1463int 2122int ecb_cold
1464ev_version_minor (void) 2123ev_version_minor (void) EV_THROW
1465{ 2124{
1466 return EV_VERSION_MINOR; 2125 return EV_VERSION_MINOR;
1467} 2126}
1468 2127
1469/* return true if we are running with elevated privileges and should ignore env variables */ 2128/* return true if we are running with elevated privileges and should ignore env variables */
1470int inline_size 2129int inline_size ecb_cold
1471enable_secure (void) 2130enable_secure (void)
1472{ 2131{
1473#ifdef _WIN32 2132#ifdef _WIN32
1474 return 0; 2133 return 0;
1475#else 2134#else
1476 return getuid () != geteuid () 2135 return getuid () != geteuid ()
1477 || getgid () != getegid (); 2136 || getgid () != getegid ();
1478#endif 2137#endif
1479} 2138}
1480 2139
1481unsigned int 2140unsigned int ecb_cold
1482ev_supported_backends (void) 2141ev_supported_backends (void) EV_THROW
1483{ 2142{
1484 unsigned int flags = 0; 2143 unsigned int flags = 0;
1485 2144
1486 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2145 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1487 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2146 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1490 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2149 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1491 2150
1492 return flags; 2151 return flags;
1493} 2152}
1494 2153
1495unsigned int 2154unsigned int ecb_cold
1496ev_recommended_backends (void) 2155ev_recommended_backends (void) EV_THROW
1497{ 2156{
1498 unsigned int flags = ev_supported_backends (); 2157 unsigned int flags = ev_supported_backends ();
1499 2158
1500#ifndef __NetBSD__ 2159#ifndef __NetBSD__
1501 /* kqueue is borked on everything but netbsd apparently */ 2160 /* kqueue is borked on everything but netbsd apparently */
… …
1505#ifdef __APPLE__ 2164#ifdef __APPLE__
1506 /* only select works correctly on that "unix-certified" platform */ 2165 /* only select works correctly on that "unix-certified" platform */
1507 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2166 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1508 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2167 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1509#endif 2168#endif
2169#ifdef __FreeBSD__
2170 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2171#endif
1510 2172
1511 return flags; 2173 return flags;
1512} 2174}
1513 2175
2176unsigned int ecb_cold
2177ev_embeddable_backends (void) EV_THROW
2178{
2179 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2180
2181 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2182 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2183 flags &= ~EVBACKEND_EPOLL;
2184
2185 return flags;
2186}
2187
1514unsigned int 2188unsigned int
1515ev_embeddable_backends (void) 2189ev_backend (EV_P) EV_THROW
1516{ 2190{
1517 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2191 return backend;
1518
1519 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1520 /* please fix it and tell me how to detect the fix */
1521 flags &= ~EVBACKEND_EPOLL;
1522
1523 return flags;
1524} 2192}
1525 2193
2194#if EV_FEATURE_API
1526unsigned int 2195unsigned int
1527ev_backend (EV_P) 2196ev_iteration (EV_P) EV_THROW
1528{ 2197{
1529 return backend; 2198 return loop_count;
1530} 2199}
1531 2200
1532#if EV_MINIMAL < 2
1533unsigned int 2201unsigned int
1534ev_loop_count (EV_P) 2202ev_depth (EV_P) EV_THROW
1535{
1536 return loop_count;
1537}
1538
1539unsigned int
1540ev_loop_depth (EV_P)
1541{ 2203{
1542 return loop_depth; 2204 return loop_depth;
1543} 2205}
1544 2206
1545void 2207void
1546ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2208ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1547{ 2209{
1548 io_blocktime = interval; 2210 io_blocktime = interval;
1549} 2211}
1550 2212
1551void 2213void
1552ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2214ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1553{ 2215{
1554 timeout_blocktime = interval; 2216 timeout_blocktime = interval;
1555} 2217}
1556 2218
1557void 2219void
1558ev_set_userdata (EV_P_ void *data) 2220ev_set_userdata (EV_P_ void *data) EV_THROW
1559{ 2221{
1560 userdata = data; 2222 userdata = data;
1561} 2223}
1562 2224
1563void * 2225void *
1564ev_userdata (EV_P) 2226ev_userdata (EV_P) EV_THROW
1565{ 2227{
1566 return userdata; 2228 return userdata;
1567} 2229}
1568 2230
2231void
1569void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2232ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1570{ 2233{
1571 invoke_cb = invoke_pending_cb; 2234 invoke_cb = invoke_pending_cb;
1572} 2235}
1573 2236
2237void
1574void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2238ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1575{ 2239{
1576 release_cb = release; 2240 release_cb = release;
1577 acquire_cb = acquire; 2241 acquire_cb = acquire;
1578} 2242}
1579#endif 2243#endif
1580 2244
1581/* initialise a loop structure, must be zero-initialised */ 2245/* initialise a loop structure, must be zero-initialised */
1582static void noinline 2246static void noinline ecb_cold
1583loop_init (EV_P_ unsigned int flags) 2247loop_init (EV_P_ unsigned int flags) EV_THROW
1584{ 2248{
1585 if (!backend) 2249 if (!backend)
1586 { 2250 {
2251 origflags = flags;
2252
1587#if EV_USE_REALTIME 2253#if EV_USE_REALTIME
1588 if (!have_realtime) 2254 if (!have_realtime)
1589 { 2255 {
1590 struct timespec ts; 2256 struct timespec ts;
1591 2257
… …
1613 if (!(flags & EVFLAG_NOENV) 2279 if (!(flags & EVFLAG_NOENV)
1614 && !enable_secure () 2280 && !enable_secure ()
1615 && getenv ("LIBEV_FLAGS")) 2281 && getenv ("LIBEV_FLAGS"))
1616 flags = atoi (getenv ("LIBEV_FLAGS")); 2282 flags = atoi (getenv ("LIBEV_FLAGS"));
1617 2283
1618 ev_rt_now = ev_time (); 2284 ev_rt_now = ev_time ();
1619 mn_now = get_clock (); 2285 mn_now = get_clock ();
1620 now_floor = mn_now; 2286 now_floor = mn_now;
1621 rtmn_diff = ev_rt_now - mn_now; 2287 rtmn_diff = ev_rt_now - mn_now;
1622#if EV_MINIMAL < 2 2288#if EV_FEATURE_API
1623 invoke_cb = ev_invoke_pending; 2289 invoke_cb = ev_invoke_pending;
1624#endif 2290#endif
1625 2291
1626 io_blocktime = 0.; 2292 io_blocktime = 0.;
1627 timeout_blocktime = 0.; 2293 timeout_blocktime = 0.;
1628 backend = 0; 2294 backend = 0;
1629 backend_fd = -1; 2295 backend_fd = -1;
1630 sig_pending = 0; 2296 sig_pending = 0;
1631#if EV_ASYNC_ENABLE 2297#if EV_ASYNC_ENABLE
1632 async_pending = 0; 2298 async_pending = 0;
1633#endif 2299#endif
2300 pipe_write_skipped = 0;
2301 pipe_write_wanted = 0;
1634#if EV_USE_INOTIFY 2302#if EV_USE_INOTIFY
1635 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2303 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1636#endif 2304#endif
1637#if EV_USE_SIGNALFD 2305#if EV_USE_SIGNALFD
1638 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2306 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1639#endif 2307#endif
1640 2308
1641 if (!(flags & 0x0000ffffU)) 2309 if (!(flags & EVBACKEND_MASK))
1642 flags |= ev_recommended_backends (); 2310 flags |= ev_recommended_backends ();
1643 2311
2312#if EV_USE_IOCP
2313 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2314#endif
1644#if EV_USE_PORT 2315#if EV_USE_PORT
1645 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2316 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1646#endif 2317#endif
1647#if EV_USE_KQUEUE 2318#if EV_USE_KQUEUE
1648 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2319 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1657 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2328 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1658#endif 2329#endif
1659 2330
1660 ev_prepare_init (&pending_w, pendingcb); 2331 ev_prepare_init (&pending_w, pendingcb);
1661 2332
2333#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1662 ev_init (&pipe_w, pipecb); 2334 ev_init (&pipe_w, pipecb);
1663 ev_set_priority (&pipe_w, EV_MAXPRI); 2335 ev_set_priority (&pipe_w, EV_MAXPRI);
2336#endif
1664 } 2337 }
1665} 2338}
1666 2339
1667/* free up a loop structure */ 2340/* free up a loop structure */
1668static void noinline 2341void ecb_cold
1669loop_destroy (EV_P) 2342ev_loop_destroy (EV_P)
1670{ 2343{
1671 int i; 2344 int i;
2345
2346#if EV_MULTIPLICITY
2347 /* mimic free (0) */
2348 if (!EV_A)
2349 return;
2350#endif
2351
2352#if EV_CLEANUP_ENABLE
2353 /* queue cleanup watchers (and execute them) */
2354 if (expect_false (cleanupcnt))
2355 {
2356 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2357 EV_INVOKE_PENDING;
2358 }
2359#endif
2360
2361#if EV_CHILD_ENABLE
2362 if (ev_is_active (&childev))
2363 {
2364 ev_ref (EV_A); /* child watcher */
2365 ev_signal_stop (EV_A_ &childev);
2366 }
2367#endif
1672 2368
1673 if (ev_is_active (&pipe_w)) 2369 if (ev_is_active (&pipe_w))
1674 { 2370 {
1675 /*ev_ref (EV_A);*/ 2371 /*ev_ref (EV_A);*/
1676 /*ev_io_stop (EV_A_ &pipe_w);*/ 2372 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1698#endif 2394#endif
1699 2395
1700 if (backend_fd >= 0) 2396 if (backend_fd >= 0)
1701 close (backend_fd); 2397 close (backend_fd);
1702 2398
2399#if EV_USE_IOCP
2400 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2401#endif
1703#if EV_USE_PORT 2402#if EV_USE_PORT
1704 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2403 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1705#endif 2404#endif
1706#if EV_USE_KQUEUE 2405#if EV_USE_KQUEUE
1707 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2406 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1734 array_free (periodic, EMPTY); 2433 array_free (periodic, EMPTY);
1735#endif 2434#endif
1736#if EV_FORK_ENABLE 2435#if EV_FORK_ENABLE
1737 array_free (fork, EMPTY); 2436 array_free (fork, EMPTY);
1738#endif 2437#endif
2438#if EV_CLEANUP_ENABLE
2439 array_free (cleanup, EMPTY);
2440#endif
1739 array_free (prepare, EMPTY); 2441 array_free (prepare, EMPTY);
1740 array_free (check, EMPTY); 2442 array_free (check, EMPTY);
1741#if EV_ASYNC_ENABLE 2443#if EV_ASYNC_ENABLE
1742 array_free (async, EMPTY); 2444 array_free (async, EMPTY);
1743#endif 2445#endif
1744 2446
1745 backend = 0; 2447 backend = 0;
2448
2449#if EV_MULTIPLICITY
2450 if (ev_is_default_loop (EV_A))
2451#endif
2452 ev_default_loop_ptr = 0;
2453#if EV_MULTIPLICITY
2454 else
2455 ev_free (EV_A);
2456#endif
1746} 2457}
1747 2458
1748#if EV_USE_INOTIFY 2459#if EV_USE_INOTIFY
1749inline_size void infy_fork (EV_P); 2460inline_size void infy_fork (EV_P);
1750#endif 2461#endif
… …
1765 infy_fork (EV_A); 2476 infy_fork (EV_A);
1766#endif 2477#endif
1767 2478
1768 if (ev_is_active (&pipe_w)) 2479 if (ev_is_active (&pipe_w))
1769 { 2480 {
1770 /* this "locks" the handlers against writing to the pipe */ 2481 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1771 /* while we modify the fd vars */
1772 sig_pending = 1;
1773#if EV_ASYNC_ENABLE
1774 async_pending = 1;
1775#endif
1776 2482
1777 ev_ref (EV_A); 2483 ev_ref (EV_A);
1778 ev_io_stop (EV_A_ &pipe_w); 2484 ev_io_stop (EV_A_ &pipe_w);
1779 2485
1780#if EV_USE_EVENTFD 2486#if EV_USE_EVENTFD
… …
1786 { 2492 {
1787 EV_WIN32_CLOSE_FD (evpipe [0]); 2493 EV_WIN32_CLOSE_FD (evpipe [0]);
1788 EV_WIN32_CLOSE_FD (evpipe [1]); 2494 EV_WIN32_CLOSE_FD (evpipe [1]);
1789 } 2495 }
1790 2496
2497#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1791 evpipe_init (EV_A); 2498 evpipe_init (EV_A);
1792 /* now iterate over everything, in case we missed something */ 2499 /* now iterate over everything, in case we missed something */
1793 pipecb (EV_A_ &pipe_w, EV_READ); 2500 pipecb (EV_A_ &pipe_w, EV_READ);
2501#endif
1794 } 2502 }
1795 2503
1796 postfork = 0; 2504 postfork = 0;
1797} 2505}
1798 2506
1799#if EV_MULTIPLICITY 2507#if EV_MULTIPLICITY
1800 2508
1801struct ev_loop * 2509struct ev_loop * ecb_cold
1802ev_loop_new (unsigned int flags) 2510ev_loop_new (unsigned int flags) EV_THROW
1803{ 2511{
1804 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2512 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1805 2513
1806 memset (EV_A, 0, sizeof (struct ev_loop)); 2514 memset (EV_A, 0, sizeof (struct ev_loop));
1807 loop_init (EV_A_ flags); 2515 loop_init (EV_A_ flags);
1808 2516
1809 if (ev_backend (EV_A)) 2517 if (ev_backend (EV_A))
1810 return EV_A; 2518 return EV_A;
1811 2519
2520 ev_free (EV_A);
1812 return 0; 2521 return 0;
1813} 2522}
1814 2523
1815void
1816ev_loop_destroy (EV_P)
1817{
1818 loop_destroy (EV_A);
1819 ev_free (loop);
1820}
1821
1822void
1823ev_loop_fork (EV_P)
1824{
1825 postfork = 1; /* must be in line with ev_default_fork */
1826}
1827#endif /* multiplicity */ 2524#endif /* multiplicity */
1828 2525
1829#if EV_VERIFY 2526#if EV_VERIFY
1830static void noinline 2527static void noinline ecb_cold
1831verify_watcher (EV_P_ W w) 2528verify_watcher (EV_P_ W w)
1832{ 2529{
1833 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2530 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1834 2531
1835 if (w->pending) 2532 if (w->pending)
1836 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2533 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1837} 2534}
1838 2535
1839static void noinline 2536static void noinline ecb_cold
1840verify_heap (EV_P_ ANHE *heap, int N) 2537verify_heap (EV_P_ ANHE *heap, int N)
1841{ 2538{
1842 int i; 2539 int i;
1843 2540
1844 for (i = HEAP0; i < N + HEAP0; ++i) 2541 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1849 2546
1850 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2547 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1851 } 2548 }
1852} 2549}
1853 2550
1854static void noinline 2551static void noinline ecb_cold
1855array_verify (EV_P_ W *ws, int cnt) 2552array_verify (EV_P_ W *ws, int cnt)
1856{ 2553{
1857 while (cnt--) 2554 while (cnt--)
1858 { 2555 {
1859 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2556 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1860 verify_watcher (EV_A_ ws [cnt]); 2557 verify_watcher (EV_A_ ws [cnt]);
1861 } 2558 }
1862} 2559}
1863#endif 2560#endif
1864 2561
1865#if EV_MINIMAL < 2 2562#if EV_FEATURE_API
1866void 2563void ecb_cold
1867ev_loop_verify (EV_P) 2564ev_verify (EV_P) EV_THROW
1868{ 2565{
1869#if EV_VERIFY 2566#if EV_VERIFY
1870 int i; 2567 int i, j;
1871 WL w; 2568 WL w, w2;
1872 2569
1873 assert (activecnt >= -1); 2570 assert (activecnt >= -1);
1874 2571
1875 assert (fdchangemax >= fdchangecnt); 2572 assert (fdchangemax >= fdchangecnt);
1876 for (i = 0; i < fdchangecnt; ++i) 2573 for (i = 0; i < fdchangecnt; ++i)
1877 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2574 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1878 2575
1879 assert (anfdmax >= 0); 2576 assert (anfdmax >= 0);
1880 for (i = 0; i < anfdmax; ++i) 2577 for (i = j = 0; i < anfdmax; ++i)
1881 for (w = anfds [i].head; w; w = w->next) 2578 for (w = w2 = anfds [i].head; w; w = w->next)
1882 { 2579 {
1883 verify_watcher (EV_A_ (W)w); 2580 verify_watcher (EV_A_ (W)w);
2581
2582 if (++j & 1)
2583 w2 = w2->next;
2584
2585 assert (("libev: io watcher list contains a loop", w != w2));
1884 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2586 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1885 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2587 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1886 } 2588 }
1887 2589
1888 assert (timermax >= timercnt); 2590 assert (timermax >= timercnt);
… …
1906#if EV_FORK_ENABLE 2608#if EV_FORK_ENABLE
1907 assert (forkmax >= forkcnt); 2609 assert (forkmax >= forkcnt);
1908 array_verify (EV_A_ (W *)forks, forkcnt); 2610 array_verify (EV_A_ (W *)forks, forkcnt);
1909#endif 2611#endif
1910 2612
2613#if EV_CLEANUP_ENABLE
2614 assert (cleanupmax >= cleanupcnt);
2615 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2616#endif
2617
1911#if EV_ASYNC_ENABLE 2618#if EV_ASYNC_ENABLE
1912 assert (asyncmax >= asynccnt); 2619 assert (asyncmax >= asynccnt);
1913 array_verify (EV_A_ (W *)asyncs, asynccnt); 2620 array_verify (EV_A_ (W *)asyncs, asynccnt);
1914#endif 2621#endif
1915 2622
2623#if EV_PREPARE_ENABLE
1916 assert (preparemax >= preparecnt); 2624 assert (preparemax >= preparecnt);
1917 array_verify (EV_A_ (W *)prepares, preparecnt); 2625 array_verify (EV_A_ (W *)prepares, preparecnt);
2626#endif
1918 2627
2628#if EV_CHECK_ENABLE
1919 assert (checkmax >= checkcnt); 2629 assert (checkmax >= checkcnt);
1920 array_verify (EV_A_ (W *)checks, checkcnt); 2630 array_verify (EV_A_ (W *)checks, checkcnt);
2631#endif
1921 2632
1922# if 0 2633# if 0
2634#if EV_CHILD_ENABLE
1923 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2635 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1924 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2636 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2637#endif
1925# endif 2638# endif
1926#endif 2639#endif
1927} 2640}
1928#endif 2641#endif
1929 2642
1930#if EV_MULTIPLICITY 2643#if EV_MULTIPLICITY
1931struct ev_loop * 2644struct ev_loop * ecb_cold
1932ev_default_loop_init (unsigned int flags)
1933#else 2645#else
1934int 2646int
2647#endif
1935ev_default_loop (unsigned int flags) 2648ev_default_loop (unsigned int flags) EV_THROW
1936#endif
1937{ 2649{
1938 if (!ev_default_loop_ptr) 2650 if (!ev_default_loop_ptr)
1939 { 2651 {
1940#if EV_MULTIPLICITY 2652#if EV_MULTIPLICITY
1941 EV_P = ev_default_loop_ptr = &default_loop_struct; 2653 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1945 2657
1946 loop_init (EV_A_ flags); 2658 loop_init (EV_A_ flags);
1947 2659
1948 if (ev_backend (EV_A)) 2660 if (ev_backend (EV_A))
1949 { 2661 {
1950#ifndef _WIN32 2662#if EV_CHILD_ENABLE
1951 ev_signal_init (&childev, childcb, SIGCHLD); 2663 ev_signal_init (&childev, childcb, SIGCHLD);
1952 ev_set_priority (&childev, EV_MAXPRI); 2664 ev_set_priority (&childev, EV_MAXPRI);
1953 ev_signal_start (EV_A_ &childev); 2665 ev_signal_start (EV_A_ &childev);
1954 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2666 ev_unref (EV_A); /* child watcher should not keep loop alive */
1955#endif 2667#endif
… …
1960 2672
1961 return ev_default_loop_ptr; 2673 return ev_default_loop_ptr;
1962} 2674}
1963 2675
1964void 2676void
1965ev_default_destroy (void) 2677ev_loop_fork (EV_P) EV_THROW
1966{ 2678{
1967#if EV_MULTIPLICITY
1968 EV_P = ev_default_loop_ptr;
1969#endif
1970
1971 ev_default_loop_ptr = 0;
1972
1973#ifndef _WIN32
1974 ev_ref (EV_A); /* child watcher */
1975 ev_signal_stop (EV_A_ &childev);
1976#endif
1977
1978 loop_destroy (EV_A);
1979}
1980
1981void
1982ev_default_fork (void)
1983{
1984#if EV_MULTIPLICITY
1985 EV_P = ev_default_loop_ptr;
1986#endif
1987
1988 postfork = 1; /* must be in line with ev_loop_fork */ 2679 postfork = 1; /* must be in line with ev_default_fork */
1989} 2680}
1990 2681
1991/*****************************************************************************/ 2682/*****************************************************************************/
1992 2683
1993void 2684void
… …
1995{ 2686{
1996 EV_CB_INVOKE ((W)w, revents); 2687 EV_CB_INVOKE ((W)w, revents);
1997} 2688}
1998 2689
1999unsigned int 2690unsigned int
2000ev_pending_count (EV_P) 2691ev_pending_count (EV_P) EV_THROW
2001{ 2692{
2002 int pri; 2693 int pri;
2003 unsigned int count = 0; 2694 unsigned int count = 0;
2004 2695
2005 for (pri = NUMPRI; pri--; ) 2696 for (pri = NUMPRI; pri--; )
… …
2009} 2700}
2010 2701
2011void noinline 2702void noinline
2012ev_invoke_pending (EV_P) 2703ev_invoke_pending (EV_P)
2013{ 2704{
2014 int pri; 2705 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2015
2016 for (pri = NUMPRI; pri--; )
2017 while (pendingcnt [pri]) 2706 while (pendingcnt [pendingpri])
2018 { 2707 {
2019 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2708 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2020
2021 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2022 /* ^ this is no longer true, as pending_w could be here */
2023 2709
2024 p->w->pending = 0; 2710 p->w->pending = 0;
2025 EV_CB_INVOKE (p->w, p->events); 2711 EV_CB_INVOKE (p->w, p->events);
2026 EV_FREQUENT_CHECK; 2712 EV_FREQUENT_CHECK;
2027 } 2713 }
… …
2084 EV_FREQUENT_CHECK; 2770 EV_FREQUENT_CHECK;
2085 feed_reverse (EV_A_ (W)w); 2771 feed_reverse (EV_A_ (W)w);
2086 } 2772 }
2087 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2773 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2088 2774
2089 feed_reverse_done (EV_A_ EV_TIMEOUT); 2775 feed_reverse_done (EV_A_ EV_TIMER);
2090 } 2776 }
2091} 2777}
2092 2778
2093#if EV_PERIODIC_ENABLE 2779#if EV_PERIODIC_ENABLE
2780
2781static void noinline
2782periodic_recalc (EV_P_ ev_periodic *w)
2783{
2784 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2785 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2786
2787 /* the above almost always errs on the low side */
2788 while (at <= ev_rt_now)
2789 {
2790 ev_tstamp nat = at + w->interval;
2791
2792 /* when resolution fails us, we use ev_rt_now */
2793 if (expect_false (nat == at))
2794 {
2795 at = ev_rt_now;
2796 break;
2797 }
2798
2799 at = nat;
2800 }
2801
2802 ev_at (w) = at;
2803}
2804
2094/* make periodics pending */ 2805/* make periodics pending */
2095inline_size void 2806inline_size void
2096periodics_reify (EV_P) 2807periodics_reify (EV_P)
2097{ 2808{
2098 EV_FREQUENT_CHECK; 2809 EV_FREQUENT_CHECK;
… …
2117 ANHE_at_cache (periodics [HEAP0]); 2828 ANHE_at_cache (periodics [HEAP0]);
2118 downheap (periodics, periodiccnt, HEAP0); 2829 downheap (periodics, periodiccnt, HEAP0);
2119 } 2830 }
2120 else if (w->interval) 2831 else if (w->interval)
2121 { 2832 {
2122 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2833 periodic_recalc (EV_A_ w);
2123 /* if next trigger time is not sufficiently in the future, put it there */
2124 /* this might happen because of floating point inexactness */
2125 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2126 {
2127 ev_at (w) += w->interval;
2128
2129 /* if interval is unreasonably low we might still have a time in the past */
2130 /* so correct this. this will make the periodic very inexact, but the user */
2131 /* has effectively asked to get triggered more often than possible */
2132 if (ev_at (w) < ev_rt_now)
2133 ev_at (w) = ev_rt_now;
2134 }
2135
2136 ANHE_at_cache (periodics [HEAP0]); 2834 ANHE_at_cache (periodics [HEAP0]);
2137 downheap (periodics, periodiccnt, HEAP0); 2835 downheap (periodics, periodiccnt, HEAP0);
2138 } 2836 }
2139 else 2837 else
2140 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2838 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2147 feed_reverse_done (EV_A_ EV_PERIODIC); 2845 feed_reverse_done (EV_A_ EV_PERIODIC);
2148 } 2846 }
2149} 2847}
2150 2848
2151/* simply recalculate all periodics */ 2849/* simply recalculate all periodics */
2152/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2850/* TODO: maybe ensure that at least one event happens when jumping forward? */
2153static void noinline 2851static void noinline ecb_cold
2154periodics_reschedule (EV_P) 2852periodics_reschedule (EV_P)
2155{ 2853{
2156 int i; 2854 int i;
2157 2855
2158 /* adjust periodics after time jump */ 2856 /* adjust periodics after time jump */
… …
2161 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2859 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2162 2860
2163 if (w->reschedule_cb) 2861 if (w->reschedule_cb)
2164 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2862 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2165 else if (w->interval) 2863 else if (w->interval)
2166 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2864 periodic_recalc (EV_A_ w);
2167 2865
2168 ANHE_at_cache (periodics [i]); 2866 ANHE_at_cache (periodics [i]);
2169 } 2867 }
2170 2868
2171 reheap (periodics, periodiccnt); 2869 reheap (periodics, periodiccnt);
2172} 2870}
2173#endif 2871#endif
2174 2872
2175/* adjust all timers by a given offset */ 2873/* adjust all timers by a given offset */
2176static void noinline 2874static void noinline ecb_cold
2177timers_reschedule (EV_P_ ev_tstamp adjust) 2875timers_reschedule (EV_P_ ev_tstamp adjust)
2178{ 2876{
2179 int i; 2877 int i;
2180 2878
2181 for (i = 0; i < timercnt; ++i) 2879 for (i = 0; i < timercnt; ++i)
… …
2218 * doesn't hurt either as we only do this on time-jumps or 2916 * doesn't hurt either as we only do this on time-jumps or
2219 * in the unlikely event of having been preempted here. 2917 * in the unlikely event of having been preempted here.
2220 */ 2918 */
2221 for (i = 4; --i; ) 2919 for (i = 4; --i; )
2222 { 2920 {
2921 ev_tstamp diff;
2223 rtmn_diff = ev_rt_now - mn_now; 2922 rtmn_diff = ev_rt_now - mn_now;
2224 2923
2924 diff = odiff - rtmn_diff;
2925
2225 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2926 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2226 return; /* all is well */ 2927 return; /* all is well */
2227 2928
2228 ev_rt_now = ev_time (); 2929 ev_rt_now = ev_time ();
2229 mn_now = get_clock (); 2930 mn_now = get_clock ();
2230 now_floor = mn_now; 2931 now_floor = mn_now;
… …
2252 2953
2253 mn_now = ev_rt_now; 2954 mn_now = ev_rt_now;
2254 } 2955 }
2255} 2956}
2256 2957
2257void 2958int
2258ev_loop (EV_P_ int flags) 2959ev_run (EV_P_ int flags)
2259{ 2960{
2260#if EV_MINIMAL < 2 2961#if EV_FEATURE_API
2261 ++loop_depth; 2962 ++loop_depth;
2262#endif 2963#endif
2263 2964
2264 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2965 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2265 2966
2266 loop_done = EVUNLOOP_CANCEL; 2967 loop_done = EVBREAK_CANCEL;
2267 2968
2268 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2969 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2269 2970
2270 do 2971 do
2271 { 2972 {
2272#if EV_VERIFY >= 2 2973#if EV_VERIFY >= 2
2273 ev_loop_verify (EV_A); 2974 ev_verify (EV_A);
2274#endif 2975#endif
2275 2976
2276#ifndef _WIN32 2977#ifndef _WIN32
2277 if (expect_false (curpid)) /* penalise the forking check even more */ 2978 if (expect_false (curpid)) /* penalise the forking check even more */
2278 if (expect_false (getpid () != curpid)) 2979 if (expect_false (getpid () != curpid))
… …
2290 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2991 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2291 EV_INVOKE_PENDING; 2992 EV_INVOKE_PENDING;
2292 } 2993 }
2293#endif 2994#endif
2294 2995
2996#if EV_PREPARE_ENABLE
2295 /* queue prepare watchers (and execute them) */ 2997 /* queue prepare watchers (and execute them) */
2296 if (expect_false (preparecnt)) 2998 if (expect_false (preparecnt))
2297 { 2999 {
2298 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3000 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2299 EV_INVOKE_PENDING; 3001 EV_INVOKE_PENDING;
2300 } 3002 }
3003#endif
2301 3004
2302 if (expect_false (loop_done)) 3005 if (expect_false (loop_done))
2303 break; 3006 break;
2304 3007
2305 /* we might have forked, so reify kernel state if necessary */ 3008 /* we might have forked, so reify kernel state if necessary */
… …
2312 /* calculate blocking time */ 3015 /* calculate blocking time */
2313 { 3016 {
2314 ev_tstamp waittime = 0.; 3017 ev_tstamp waittime = 0.;
2315 ev_tstamp sleeptime = 0.; 3018 ev_tstamp sleeptime = 0.;
2316 3019
3020 /* remember old timestamp for io_blocktime calculation */
3021 ev_tstamp prev_mn_now = mn_now;
3022
3023 /* update time to cancel out callback processing overhead */
3024 time_update (EV_A_ 1e100);
3025
3026 /* from now on, we want a pipe-wake-up */
3027 pipe_write_wanted = 1;
3028
3029 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3030
2317 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3031 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2318 { 3032 {
2319 /* remember old timestamp for io_blocktime calculation */
2320 ev_tstamp prev_mn_now = mn_now;
2321
2322 /* update time to cancel out callback processing overhead */
2323 time_update (EV_A_ 1e100);
2324
2325 waittime = MAX_BLOCKTIME; 3033 waittime = MAX_BLOCKTIME;
2326 3034
2327 if (timercnt) 3035 if (timercnt)
2328 { 3036 {
2329 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3037 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2330 if (waittime > to) waittime = to; 3038 if (waittime > to) waittime = to;
2331 } 3039 }
2332 3040
2333#if EV_PERIODIC_ENABLE 3041#if EV_PERIODIC_ENABLE
2334 if (periodiccnt) 3042 if (periodiccnt)
2335 { 3043 {
2336 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3044 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2337 if (waittime > to) waittime = to; 3045 if (waittime > to) waittime = to;
2338 } 3046 }
2339#endif 3047#endif
2340 3048
2341 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3049 /* don't let timeouts decrease the waittime below timeout_blocktime */
2342 if (expect_false (waittime < timeout_blocktime)) 3050 if (expect_false (waittime < timeout_blocktime))
2343 waittime = timeout_blocktime; 3051 waittime = timeout_blocktime;
3052
3053 /* at this point, we NEED to wait, so we have to ensure */
3054 /* to pass a minimum nonzero value to the backend */
3055 if (expect_false (waittime < backend_mintime))
3056 waittime = backend_mintime;
2344 3057
2345 /* extra check because io_blocktime is commonly 0 */ 3058 /* extra check because io_blocktime is commonly 0 */
2346 if (expect_false (io_blocktime)) 3059 if (expect_false (io_blocktime))
2347 { 3060 {
2348 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3061 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2349 3062
2350 if (sleeptime > waittime - backend_fudge) 3063 if (sleeptime > waittime - backend_mintime)
2351 sleeptime = waittime - backend_fudge; 3064 sleeptime = waittime - backend_mintime;
2352 3065
2353 if (expect_true (sleeptime > 0.)) 3066 if (expect_true (sleeptime > 0.))
2354 { 3067 {
2355 ev_sleep (sleeptime); 3068 ev_sleep (sleeptime);
2356 waittime -= sleeptime; 3069 waittime -= sleeptime;
2357 } 3070 }
2358 } 3071 }
2359 } 3072 }
2360 3073
2361#if EV_MINIMAL < 2 3074#if EV_FEATURE_API
2362 ++loop_count; 3075 ++loop_count;
2363#endif 3076#endif
2364 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3077 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2365 backend_poll (EV_A_ waittime); 3078 backend_poll (EV_A_ waittime);
2366 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3079 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3080
3081 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3082
3083 if (pipe_write_skipped)
3084 {
3085 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3086 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3087 }
3088
2367 3089
2368 /* update ev_rt_now, do magic */ 3090 /* update ev_rt_now, do magic */
2369 time_update (EV_A_ waittime + sleeptime); 3091 time_update (EV_A_ waittime + sleeptime);
2370 } 3092 }
2371 3093
… …
2378#if EV_IDLE_ENABLE 3100#if EV_IDLE_ENABLE
2379 /* queue idle watchers unless other events are pending */ 3101 /* queue idle watchers unless other events are pending */
2380 idle_reify (EV_A); 3102 idle_reify (EV_A);
2381#endif 3103#endif
2382 3104
3105#if EV_CHECK_ENABLE
2383 /* queue check watchers, to be executed first */ 3106 /* queue check watchers, to be executed first */
2384 if (expect_false (checkcnt)) 3107 if (expect_false (checkcnt))
2385 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3108 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3109#endif
2386 3110
2387 EV_INVOKE_PENDING; 3111 EV_INVOKE_PENDING;
2388 } 3112 }
2389 while (expect_true ( 3113 while (expect_true (
2390 activecnt 3114 activecnt
2391 && !loop_done 3115 && !loop_done
2392 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3116 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2393 )); 3117 ));
2394 3118
2395 if (loop_done == EVUNLOOP_ONE) 3119 if (loop_done == EVBREAK_ONE)
2396 loop_done = EVUNLOOP_CANCEL; 3120 loop_done = EVBREAK_CANCEL;
2397 3121
2398#if EV_MINIMAL < 2 3122#if EV_FEATURE_API
2399 --loop_depth; 3123 --loop_depth;
2400#endif 3124#endif
3125
3126 return activecnt;
2401} 3127}
2402 3128
2403void 3129void
2404ev_unloop (EV_P_ int how) 3130ev_break (EV_P_ int how) EV_THROW
2405{ 3131{
2406 loop_done = how; 3132 loop_done = how;
2407} 3133}
2408 3134
2409void 3135void
2410ev_ref (EV_P) 3136ev_ref (EV_P) EV_THROW
2411{ 3137{
2412 ++activecnt; 3138 ++activecnt;
2413} 3139}
2414 3140
2415void 3141void
2416ev_unref (EV_P) 3142ev_unref (EV_P) EV_THROW
2417{ 3143{
2418 --activecnt; 3144 --activecnt;
2419} 3145}
2420 3146
2421void 3147void
2422ev_now_update (EV_P) 3148ev_now_update (EV_P) EV_THROW
2423{ 3149{
2424 time_update (EV_A_ 1e100); 3150 time_update (EV_A_ 1e100);
2425} 3151}
2426 3152
2427void 3153void
2428ev_suspend (EV_P) 3154ev_suspend (EV_P) EV_THROW
2429{ 3155{
2430 ev_now_update (EV_A); 3156 ev_now_update (EV_A);
2431} 3157}
2432 3158
2433void 3159void
2434ev_resume (EV_P) 3160ev_resume (EV_P) EV_THROW
2435{ 3161{
2436 ev_tstamp mn_prev = mn_now; 3162 ev_tstamp mn_prev = mn_now;
2437 3163
2438 ev_now_update (EV_A); 3164 ev_now_update (EV_A);
2439 timers_reschedule (EV_A_ mn_now - mn_prev); 3165 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2478 w->pending = 0; 3204 w->pending = 0;
2479 } 3205 }
2480} 3206}
2481 3207
2482int 3208int
2483ev_clear_pending (EV_P_ void *w) 3209ev_clear_pending (EV_P_ void *w) EV_THROW
2484{ 3210{
2485 W w_ = (W)w; 3211 W w_ = (W)w;
2486 int pending = w_->pending; 3212 int pending = w_->pending;
2487 3213
2488 if (expect_true (pending)) 3214 if (expect_true (pending))
… …
2521} 3247}
2522 3248
2523/*****************************************************************************/ 3249/*****************************************************************************/
2524 3250
2525void noinline 3251void noinline
2526ev_io_start (EV_P_ ev_io *w) 3252ev_io_start (EV_P_ ev_io *w) EV_THROW
2527{ 3253{
2528 int fd = w->fd; 3254 int fd = w->fd;
2529 3255
2530 if (expect_false (ev_is_active (w))) 3256 if (expect_false (ev_is_active (w)))
2531 return; 3257 return;
… …
2537 3263
2538 ev_start (EV_A_ (W)w, 1); 3264 ev_start (EV_A_ (W)w, 1);
2539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3265 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2540 wlist_add (&anfds[fd].head, (WL)w); 3266 wlist_add (&anfds[fd].head, (WL)w);
2541 3267
3268 /* common bug, apparently */
3269 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3270
2542 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3271 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2543 w->events &= ~EV__IOFDSET; 3272 w->events &= ~EV__IOFDSET;
2544 3273
2545 EV_FREQUENT_CHECK; 3274 EV_FREQUENT_CHECK;
2546} 3275}
2547 3276
2548void noinline 3277void noinline
2549ev_io_stop (EV_P_ ev_io *w) 3278ev_io_stop (EV_P_ ev_io *w) EV_THROW
2550{ 3279{
2551 clear_pending (EV_A_ (W)w); 3280 clear_pending (EV_A_ (W)w);
2552 if (expect_false (!ev_is_active (w))) 3281 if (expect_false (!ev_is_active (w)))
2553 return; 3282 return;
2554 3283
… …
2557 EV_FREQUENT_CHECK; 3286 EV_FREQUENT_CHECK;
2558 3287
2559 wlist_del (&anfds[w->fd].head, (WL)w); 3288 wlist_del (&anfds[w->fd].head, (WL)w);
2560 ev_stop (EV_A_ (W)w); 3289 ev_stop (EV_A_ (W)w);
2561 3290
2562 fd_change (EV_A_ w->fd, 1); 3291 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2563 3292
2564 EV_FREQUENT_CHECK; 3293 EV_FREQUENT_CHECK;
2565} 3294}
2566 3295
2567void noinline 3296void noinline
2568ev_timer_start (EV_P_ ev_timer *w) 3297ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2569{ 3298{
2570 if (expect_false (ev_is_active (w))) 3299 if (expect_false (ev_is_active (w)))
2571 return; 3300 return;
2572 3301
2573 ev_at (w) += mn_now; 3302 ev_at (w) += mn_now;
… …
2587 3316
2588 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3317 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2589} 3318}
2590 3319
2591void noinline 3320void noinline
2592ev_timer_stop (EV_P_ ev_timer *w) 3321ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2593{ 3322{
2594 clear_pending (EV_A_ (W)w); 3323 clear_pending (EV_A_ (W)w);
2595 if (expect_false (!ev_is_active (w))) 3324 if (expect_false (!ev_is_active (w)))
2596 return; 3325 return;
2597 3326
… …
2617 3346
2618 EV_FREQUENT_CHECK; 3347 EV_FREQUENT_CHECK;
2619} 3348}
2620 3349
2621void noinline 3350void noinline
2622ev_timer_again (EV_P_ ev_timer *w) 3351ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2623{ 3352{
2624 EV_FREQUENT_CHECK; 3353 EV_FREQUENT_CHECK;
3354
3355 clear_pending (EV_A_ (W)w);
2625 3356
2626 if (ev_is_active (w)) 3357 if (ev_is_active (w))
2627 { 3358 {
2628 if (w->repeat) 3359 if (w->repeat)
2629 { 3360 {
… …
2642 3373
2643 EV_FREQUENT_CHECK; 3374 EV_FREQUENT_CHECK;
2644} 3375}
2645 3376
2646ev_tstamp 3377ev_tstamp
2647ev_timer_remaining (EV_P_ ev_timer *w) 3378ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2648{ 3379{
2649 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3380 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2650} 3381}
2651 3382
2652#if EV_PERIODIC_ENABLE 3383#if EV_PERIODIC_ENABLE
2653void noinline 3384void noinline
2654ev_periodic_start (EV_P_ ev_periodic *w) 3385ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2655{ 3386{
2656 if (expect_false (ev_is_active (w))) 3387 if (expect_false (ev_is_active (w)))
2657 return; 3388 return;
2658 3389
2659 if (w->reschedule_cb) 3390 if (w->reschedule_cb)
2660 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3391 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2661 else if (w->interval) 3392 else if (w->interval)
2662 { 3393 {
2663 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3394 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2664 /* this formula differs from the one in periodic_reify because we do not always round up */ 3395 periodic_recalc (EV_A_ w);
2665 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2666 } 3396 }
2667 else 3397 else
2668 ev_at (w) = w->offset; 3398 ev_at (w) = w->offset;
2669 3399
2670 EV_FREQUENT_CHECK; 3400 EV_FREQUENT_CHECK;
… …
2680 3410
2681 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3411 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2682} 3412}
2683 3413
2684void noinline 3414void noinline
2685ev_periodic_stop (EV_P_ ev_periodic *w) 3415ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2686{ 3416{
2687 clear_pending (EV_A_ (W)w); 3417 clear_pending (EV_A_ (W)w);
2688 if (expect_false (!ev_is_active (w))) 3418 if (expect_false (!ev_is_active (w)))
2689 return; 3419 return;
2690 3420
… …
2708 3438
2709 EV_FREQUENT_CHECK; 3439 EV_FREQUENT_CHECK;
2710} 3440}
2711 3441
2712void noinline 3442void noinline
2713ev_periodic_again (EV_P_ ev_periodic *w) 3443ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2714{ 3444{
2715 /* TODO: use adjustheap and recalculation */ 3445 /* TODO: use adjustheap and recalculation */
2716 ev_periodic_stop (EV_A_ w); 3446 ev_periodic_stop (EV_A_ w);
2717 ev_periodic_start (EV_A_ w); 3447 ev_periodic_start (EV_A_ w);
2718} 3448}
… …
2720 3450
2721#ifndef SA_RESTART 3451#ifndef SA_RESTART
2722# define SA_RESTART 0 3452# define SA_RESTART 0
2723#endif 3453#endif
2724 3454
3455#if EV_SIGNAL_ENABLE
3456
2725void noinline 3457void noinline
2726ev_signal_start (EV_P_ ev_signal *w) 3458ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2727{ 3459{
2728 if (expect_false (ev_is_active (w))) 3460 if (expect_false (ev_is_active (w)))
2729 return; 3461 return;
2730 3462
2731 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3463 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2789 sa.sa_handler = ev_sighandler; 3521 sa.sa_handler = ev_sighandler;
2790 sigfillset (&sa.sa_mask); 3522 sigfillset (&sa.sa_mask);
2791 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3523 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2792 sigaction (w->signum, &sa, 0); 3524 sigaction (w->signum, &sa, 0);
2793 3525
3526 if (origflags & EVFLAG_NOSIGMASK)
3527 {
2794 sigemptyset (&sa.sa_mask); 3528 sigemptyset (&sa.sa_mask);
2795 sigaddset (&sa.sa_mask, w->signum); 3529 sigaddset (&sa.sa_mask, w->signum);
2796 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3530 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3531 }
2797#endif 3532#endif
2798 } 3533 }
2799 3534
2800 EV_FREQUENT_CHECK; 3535 EV_FREQUENT_CHECK;
2801} 3536}
2802 3537
2803void noinline 3538void noinline
2804ev_signal_stop (EV_P_ ev_signal *w) 3539ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2805{ 3540{
2806 clear_pending (EV_A_ (W)w); 3541 clear_pending (EV_A_ (W)w);
2807 if (expect_false (!ev_is_active (w))) 3542 if (expect_false (!ev_is_active (w)))
2808 return; 3543 return;
2809 3544
… …
2835 } 3570 }
2836 3571
2837 EV_FREQUENT_CHECK; 3572 EV_FREQUENT_CHECK;
2838} 3573}
2839 3574
3575#endif
3576
3577#if EV_CHILD_ENABLE
3578
2840void 3579void
2841ev_child_start (EV_P_ ev_child *w) 3580ev_child_start (EV_P_ ev_child *w) EV_THROW
2842{ 3581{
2843#if EV_MULTIPLICITY 3582#if EV_MULTIPLICITY
2844 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3583 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2845#endif 3584#endif
2846 if (expect_false (ev_is_active (w))) 3585 if (expect_false (ev_is_active (w)))
2847 return; 3586 return;
2848 3587
2849 EV_FREQUENT_CHECK; 3588 EV_FREQUENT_CHECK;
2850 3589
2851 ev_start (EV_A_ (W)w, 1); 3590 ev_start (EV_A_ (W)w, 1);
2852 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3591 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2853 3592
2854 EV_FREQUENT_CHECK; 3593 EV_FREQUENT_CHECK;
2855} 3594}
2856 3595
2857void 3596void
2858ev_child_stop (EV_P_ ev_child *w) 3597ev_child_stop (EV_P_ ev_child *w) EV_THROW
2859{ 3598{
2860 clear_pending (EV_A_ (W)w); 3599 clear_pending (EV_A_ (W)w);
2861 if (expect_false (!ev_is_active (w))) 3600 if (expect_false (!ev_is_active (w)))
2862 return; 3601 return;
2863 3602
2864 EV_FREQUENT_CHECK; 3603 EV_FREQUENT_CHECK;
2865 3604
2866 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3605 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2867 ev_stop (EV_A_ (W)w); 3606 ev_stop (EV_A_ (W)w);
2868 3607
2869 EV_FREQUENT_CHECK; 3608 EV_FREQUENT_CHECK;
2870} 3609}
3610
3611#endif
2871 3612
2872#if EV_STAT_ENABLE 3613#if EV_STAT_ENABLE
2873 3614
2874# ifdef _WIN32 3615# ifdef _WIN32
2875# undef lstat 3616# undef lstat
… …
2936 if (!pend || pend == path) 3677 if (!pend || pend == path)
2937 break; 3678 break;
2938 3679
2939 *pend = 0; 3680 *pend = 0;
2940 w->wd = inotify_add_watch (fs_fd, path, mask); 3681 w->wd = inotify_add_watch (fs_fd, path, mask);
2941 } 3682 }
2942 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3683 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2943 } 3684 }
2944 } 3685 }
2945 3686
2946 if (w->wd >= 0) 3687 if (w->wd >= 0)
2947 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3688 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2948 3689
2949 /* now re-arm timer, if required */ 3690 /* now re-arm timer, if required */
2950 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3691 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2951 ev_timer_again (EV_A_ &w->timer); 3692 ev_timer_again (EV_A_ &w->timer);
2952 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3693 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2960 3701
2961 if (wd < 0) 3702 if (wd < 0)
2962 return; 3703 return;
2963 3704
2964 w->wd = -2; 3705 w->wd = -2;
2965 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3706 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2966 wlist_del (&fs_hash [slot].head, (WL)w); 3707 wlist_del (&fs_hash [slot].head, (WL)w);
2967 3708
2968 /* remove this watcher, if others are watching it, they will rearm */ 3709 /* remove this watcher, if others are watching it, they will rearm */
2969 inotify_rm_watch (fs_fd, wd); 3710 inotify_rm_watch (fs_fd, wd);
2970} 3711}
… …
2972static void noinline 3713static void noinline
2973infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3714infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2974{ 3715{
2975 if (slot < 0) 3716 if (slot < 0)
2976 /* overflow, need to check for all hash slots */ 3717 /* overflow, need to check for all hash slots */
2977 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3718 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2978 infy_wd (EV_A_ slot, wd, ev); 3719 infy_wd (EV_A_ slot, wd, ev);
2979 else 3720 else
2980 { 3721 {
2981 WL w_; 3722 WL w_;
2982 3723
2983 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3724 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2984 { 3725 {
2985 ev_stat *w = (ev_stat *)w_; 3726 ev_stat *w = (ev_stat *)w_;
2986 w_ = w_->next; /* lets us remove this watcher and all before it */ 3727 w_ = w_->next; /* lets us remove this watcher and all before it */
2987 3728
2988 if (w->wd == wd || wd == -1) 3729 if (w->wd == wd || wd == -1)
2989 { 3730 {
2990 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3731 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2991 { 3732 {
2992 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3733 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2993 w->wd = -1; 3734 w->wd = -1;
2994 infy_add (EV_A_ w); /* re-add, no matter what */ 3735 infy_add (EV_A_ w); /* re-add, no matter what */
2995 } 3736 }
2996 3737
2997 stat_timer_cb (EV_A_ &w->timer, 0); 3738 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3013 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3754 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3014 ofs += sizeof (struct inotify_event) + ev->len; 3755 ofs += sizeof (struct inotify_event) + ev->len;
3015 } 3756 }
3016} 3757}
3017 3758
3018inline_size unsigned int
3019ev_linux_version (void)
3020{
3021 struct utsname buf;
3022 unsigned int v;
3023 int i;
3024 char *p = buf.release;
3025
3026 if (uname (&buf))
3027 return 0;
3028
3029 for (i = 3+1; --i; )
3030 {
3031 unsigned int c = 0;
3032
3033 for (;;)
3034 {
3035 if (*p >= '0' && *p <= '9')
3036 c = c * 10 + *p++ - '0';
3037 else
3038 {
3039 p += *p == '.';
3040 break;
3041 }
3042 }
3043
3044 v = (v << 8) | c;
3045 }
3046
3047 return v;
3048}
3049
3050inline_size void 3759inline_size void ecb_cold
3051ev_check_2625 (EV_P) 3760ev_check_2625 (EV_P)
3052{ 3761{
3053 /* kernels < 2.6.25 are borked 3762 /* kernels < 2.6.25 are borked
3054 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3763 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3055 */ 3764 */
… …
3060} 3769}
3061 3770
3062inline_size int 3771inline_size int
3063infy_newfd (void) 3772infy_newfd (void)
3064{ 3773{
3065#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3774#if defined IN_CLOEXEC && defined IN_NONBLOCK
3066 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3775 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3067 if (fd >= 0) 3776 if (fd >= 0)
3068 return fd; 3777 return fd;
3069#endif 3778#endif
3070 return inotify_init (); 3779 return inotify_init ();
… …
3111 ev_io_set (&fs_w, fs_fd, EV_READ); 3820 ev_io_set (&fs_w, fs_fd, EV_READ);
3112 ev_io_start (EV_A_ &fs_w); 3821 ev_io_start (EV_A_ &fs_w);
3113 ev_unref (EV_A); 3822 ev_unref (EV_A);
3114 } 3823 }
3115 3824
3116 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3825 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3117 { 3826 {
3118 WL w_ = fs_hash [slot].head; 3827 WL w_ = fs_hash [slot].head;
3119 fs_hash [slot].head = 0; 3828 fs_hash [slot].head = 0;
3120 3829
3121 while (w_) 3830 while (w_)
… …
3145#else 3854#else
3146# define EV_LSTAT(p,b) lstat (p, b) 3855# define EV_LSTAT(p,b) lstat (p, b)
3147#endif 3856#endif
3148 3857
3149void 3858void
3150ev_stat_stat (EV_P_ ev_stat *w) 3859ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3151{ 3860{
3152 if (lstat (w->path, &w->attr) < 0) 3861 if (lstat (w->path, &w->attr) < 0)
3153 w->attr.st_nlink = 0; 3862 w->attr.st_nlink = 0;
3154 else if (!w->attr.st_nlink) 3863 else if (!w->attr.st_nlink)
3155 w->attr.st_nlink = 1; 3864 w->attr.st_nlink = 1;
… …
3194 ev_feed_event (EV_A_ w, EV_STAT); 3903 ev_feed_event (EV_A_ w, EV_STAT);
3195 } 3904 }
3196} 3905}
3197 3906
3198void 3907void
3199ev_stat_start (EV_P_ ev_stat *w) 3908ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3200{ 3909{
3201 if (expect_false (ev_is_active (w))) 3910 if (expect_false (ev_is_active (w)))
3202 return; 3911 return;
3203 3912
3204 ev_stat_stat (EV_A_ w); 3913 ev_stat_stat (EV_A_ w);
… …
3225 3934
3226 EV_FREQUENT_CHECK; 3935 EV_FREQUENT_CHECK;
3227} 3936}
3228 3937
3229void 3938void
3230ev_stat_stop (EV_P_ ev_stat *w) 3939ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3231{ 3940{
3232 clear_pending (EV_A_ (W)w); 3941 clear_pending (EV_A_ (W)w);
3233 if (expect_false (!ev_is_active (w))) 3942 if (expect_false (!ev_is_active (w)))
3234 return; 3943 return;
3235 3944
… …
3251} 3960}
3252#endif 3961#endif
3253 3962
3254#if EV_IDLE_ENABLE 3963#if EV_IDLE_ENABLE
3255void 3964void
3256ev_idle_start (EV_P_ ev_idle *w) 3965ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3257{ 3966{
3258 if (expect_false (ev_is_active (w))) 3967 if (expect_false (ev_is_active (w)))
3259 return; 3968 return;
3260 3969
3261 pri_adjust (EV_A_ (W)w); 3970 pri_adjust (EV_A_ (W)w);
… …
3274 3983
3275 EV_FREQUENT_CHECK; 3984 EV_FREQUENT_CHECK;
3276} 3985}
3277 3986
3278void 3987void
3279ev_idle_stop (EV_P_ ev_idle *w) 3988ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3280{ 3989{
3281 clear_pending (EV_A_ (W)w); 3990 clear_pending (EV_A_ (W)w);
3282 if (expect_false (!ev_is_active (w))) 3991 if (expect_false (!ev_is_active (w)))
3283 return; 3992 return;
3284 3993
… …
3296 4005
3297 EV_FREQUENT_CHECK; 4006 EV_FREQUENT_CHECK;
3298} 4007}
3299#endif 4008#endif
3300 4009
4010#if EV_PREPARE_ENABLE
3301void 4011void
3302ev_prepare_start (EV_P_ ev_prepare *w) 4012ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3303{ 4013{
3304 if (expect_false (ev_is_active (w))) 4014 if (expect_false (ev_is_active (w)))
3305 return; 4015 return;
3306 4016
3307 EV_FREQUENT_CHECK; 4017 EV_FREQUENT_CHECK;
… …
3312 4022
3313 EV_FREQUENT_CHECK; 4023 EV_FREQUENT_CHECK;
3314} 4024}
3315 4025
3316void 4026void
3317ev_prepare_stop (EV_P_ ev_prepare *w) 4027ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3318{ 4028{
3319 clear_pending (EV_A_ (W)w); 4029 clear_pending (EV_A_ (W)w);
3320 if (expect_false (!ev_is_active (w))) 4030 if (expect_false (!ev_is_active (w)))
3321 return; 4031 return;
3322 4032
… …
3331 4041
3332 ev_stop (EV_A_ (W)w); 4042 ev_stop (EV_A_ (W)w);
3333 4043
3334 EV_FREQUENT_CHECK; 4044 EV_FREQUENT_CHECK;
3335} 4045}
4046#endif
3336 4047
4048#if EV_CHECK_ENABLE
3337void 4049void
3338ev_check_start (EV_P_ ev_check *w) 4050ev_check_start (EV_P_ ev_check *w) EV_THROW
3339{ 4051{
3340 if (expect_false (ev_is_active (w))) 4052 if (expect_false (ev_is_active (w)))
3341 return; 4053 return;
3342 4054
3343 EV_FREQUENT_CHECK; 4055 EV_FREQUENT_CHECK;
… …
3348 4060
3349 EV_FREQUENT_CHECK; 4061 EV_FREQUENT_CHECK;
3350} 4062}
3351 4063
3352void 4064void
3353ev_check_stop (EV_P_ ev_check *w) 4065ev_check_stop (EV_P_ ev_check *w) EV_THROW
3354{ 4066{
3355 clear_pending (EV_A_ (W)w); 4067 clear_pending (EV_A_ (W)w);
3356 if (expect_false (!ev_is_active (w))) 4068 if (expect_false (!ev_is_active (w)))
3357 return; 4069 return;
3358 4070
… …
3367 4079
3368 ev_stop (EV_A_ (W)w); 4080 ev_stop (EV_A_ (W)w);
3369 4081
3370 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
3371} 4083}
4084#endif
3372 4085
3373#if EV_EMBED_ENABLE 4086#if EV_EMBED_ENABLE
3374void noinline 4087void noinline
3375ev_embed_sweep (EV_P_ ev_embed *w) 4088ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3376{ 4089{
3377 ev_loop (w->other, EVLOOP_NONBLOCK); 4090 ev_run (w->other, EVRUN_NOWAIT);
3378} 4091}
3379 4092
3380static void 4093static void
3381embed_io_cb (EV_P_ ev_io *io, int revents) 4094embed_io_cb (EV_P_ ev_io *io, int revents)
3382{ 4095{
3383 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4096 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3384 4097
3385 if (ev_cb (w)) 4098 if (ev_cb (w))
3386 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4099 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3387 else 4100 else
3388 ev_loop (w->other, EVLOOP_NONBLOCK); 4101 ev_run (w->other, EVRUN_NOWAIT);
3389} 4102}
3390 4103
3391static void 4104static void
3392embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4105embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3393{ 4106{
… …
3397 EV_P = w->other; 4110 EV_P = w->other;
3398 4111
3399 while (fdchangecnt) 4112 while (fdchangecnt)
3400 { 4113 {
3401 fd_reify (EV_A); 4114 fd_reify (EV_A);
3402 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4115 ev_run (EV_A_ EVRUN_NOWAIT);
3403 } 4116 }
3404 } 4117 }
3405} 4118}
3406 4119
3407static void 4120static void
… …
3413 4126
3414 { 4127 {
3415 EV_P = w->other; 4128 EV_P = w->other;
3416 4129
3417 ev_loop_fork (EV_A); 4130 ev_loop_fork (EV_A);
3418 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4131 ev_run (EV_A_ EVRUN_NOWAIT);
3419 } 4132 }
3420 4133
3421 ev_embed_start (EV_A_ w); 4134 ev_embed_start (EV_A_ w);
3422} 4135}
3423 4136
… …
3428 ev_idle_stop (EV_A_ idle); 4141 ev_idle_stop (EV_A_ idle);
3429} 4142}
3430#endif 4143#endif
3431 4144
3432void 4145void
3433ev_embed_start (EV_P_ ev_embed *w) 4146ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3434{ 4147{
3435 if (expect_false (ev_is_active (w))) 4148 if (expect_false (ev_is_active (w)))
3436 return; 4149 return;
3437 4150
3438 { 4151 {
… …
3459 4172
3460 EV_FREQUENT_CHECK; 4173 EV_FREQUENT_CHECK;
3461} 4174}
3462 4175
3463void 4176void
3464ev_embed_stop (EV_P_ ev_embed *w) 4177ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3465{ 4178{
3466 clear_pending (EV_A_ (W)w); 4179 clear_pending (EV_A_ (W)w);
3467 if (expect_false (!ev_is_active (w))) 4180 if (expect_false (!ev_is_active (w)))
3468 return; 4181 return;
3469 4182
… …
3479} 4192}
3480#endif 4193#endif
3481 4194
3482#if EV_FORK_ENABLE 4195#if EV_FORK_ENABLE
3483void 4196void
3484ev_fork_start (EV_P_ ev_fork *w) 4197ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3485{ 4198{
3486 if (expect_false (ev_is_active (w))) 4199 if (expect_false (ev_is_active (w)))
3487 return; 4200 return;
3488 4201
3489 EV_FREQUENT_CHECK; 4202 EV_FREQUENT_CHECK;
… …
3494 4207
3495 EV_FREQUENT_CHECK; 4208 EV_FREQUENT_CHECK;
3496} 4209}
3497 4210
3498void 4211void
3499ev_fork_stop (EV_P_ ev_fork *w) 4212ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3500{ 4213{
3501 clear_pending (EV_A_ (W)w); 4214 clear_pending (EV_A_ (W)w);
3502 if (expect_false (!ev_is_active (w))) 4215 if (expect_false (!ev_is_active (w)))
3503 return; 4216 return;
3504 4217
… …
3515 4228
3516 EV_FREQUENT_CHECK; 4229 EV_FREQUENT_CHECK;
3517} 4230}
3518#endif 4231#endif
3519 4232
4233#if EV_CLEANUP_ENABLE
4234void
4235ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4236{
4237 if (expect_false (ev_is_active (w)))
4238 return;
4239
4240 EV_FREQUENT_CHECK;
4241
4242 ev_start (EV_A_ (W)w, ++cleanupcnt);
4243 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4244 cleanups [cleanupcnt - 1] = w;
4245
4246 /* cleanup watchers should never keep a refcount on the loop */
4247 ev_unref (EV_A);
4248 EV_FREQUENT_CHECK;
4249}
4250
4251void
4252ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4253{
4254 clear_pending (EV_A_ (W)w);
4255 if (expect_false (!ev_is_active (w)))
4256 return;
4257
4258 EV_FREQUENT_CHECK;
4259 ev_ref (EV_A);
4260
4261 {
4262 int active = ev_active (w);
4263
4264 cleanups [active - 1] = cleanups [--cleanupcnt];
4265 ev_active (cleanups [active - 1]) = active;
4266 }
4267
4268 ev_stop (EV_A_ (W)w);
4269
4270 EV_FREQUENT_CHECK;
4271}
4272#endif
4273
3520#if EV_ASYNC_ENABLE 4274#if EV_ASYNC_ENABLE
3521void 4275void
3522ev_async_start (EV_P_ ev_async *w) 4276ev_async_start (EV_P_ ev_async *w) EV_THROW
3523{ 4277{
3524 if (expect_false (ev_is_active (w))) 4278 if (expect_false (ev_is_active (w)))
3525 return; 4279 return;
4280
4281 w->sent = 0;
3526 4282
3527 evpipe_init (EV_A); 4283 evpipe_init (EV_A);
3528 4284
3529 EV_FREQUENT_CHECK; 4285 EV_FREQUENT_CHECK;
3530 4286
… …
3534 4290
3535 EV_FREQUENT_CHECK; 4291 EV_FREQUENT_CHECK;
3536} 4292}
3537 4293
3538void 4294void
3539ev_async_stop (EV_P_ ev_async *w) 4295ev_async_stop (EV_P_ ev_async *w) EV_THROW
3540{ 4296{
3541 clear_pending (EV_A_ (W)w); 4297 clear_pending (EV_A_ (W)w);
3542 if (expect_false (!ev_is_active (w))) 4298 if (expect_false (!ev_is_active (w)))
3543 return; 4299 return;
3544 4300
… …
3555 4311
3556 EV_FREQUENT_CHECK; 4312 EV_FREQUENT_CHECK;
3557} 4313}
3558 4314
3559void 4315void
3560ev_async_send (EV_P_ ev_async *w) 4316ev_async_send (EV_P_ ev_async *w) EV_THROW
3561{ 4317{
3562 w->sent = 1; 4318 w->sent = 1;
3563 evpipe_write (EV_A_ &async_pending); 4319 evpipe_write (EV_A_ &async_pending);
3564} 4320}
3565#endif 4321#endif
… …
3602 4358
3603 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4359 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3604} 4360}
3605 4361
3606void 4362void
3607ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4363ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3608{ 4364{
3609 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4365 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3610 4366
3611 if (expect_false (!once)) 4367 if (expect_false (!once))
3612 { 4368 {
3613 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4369 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3614 return; 4370 return;
3615 } 4371 }
3616 4372
3617 once->cb = cb; 4373 once->cb = cb;
3618 once->arg = arg; 4374 once->arg = arg;
… …
3633} 4389}
3634 4390
3635/*****************************************************************************/ 4391/*****************************************************************************/
3636 4392
3637#if EV_WALK_ENABLE 4393#if EV_WALK_ENABLE
3638void 4394void ecb_cold
3639ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4395ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3640{ 4396{
3641 int i, j; 4397 int i, j;
3642 ev_watcher_list *wl, *wn; 4398 ev_watcher_list *wl, *wn;
3643 4399
3644 if (types & (EV_IO | EV_EMBED)) 4400 if (types & (EV_IO | EV_EMBED))
… …
3687 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4443 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3688#endif 4444#endif
3689 4445
3690#if EV_IDLE_ENABLE 4446#if EV_IDLE_ENABLE
3691 if (types & EV_IDLE) 4447 if (types & EV_IDLE)
3692 for (j = NUMPRI; i--; ) 4448 for (j = NUMPRI; j--; )
3693 for (i = idlecnt [j]; i--; ) 4449 for (i = idlecnt [j]; i--; )
3694 cb (EV_A_ EV_IDLE, idles [j][i]); 4450 cb (EV_A_ EV_IDLE, idles [j][i]);
3695#endif 4451#endif
3696 4452
3697#if EV_FORK_ENABLE 4453#if EV_FORK_ENABLE
… …
3705 if (types & EV_ASYNC) 4461 if (types & EV_ASYNC)
3706 for (i = asynccnt; i--; ) 4462 for (i = asynccnt; i--; )
3707 cb (EV_A_ EV_ASYNC, asyncs [i]); 4463 cb (EV_A_ EV_ASYNC, asyncs [i]);
3708#endif 4464#endif
3709 4465
4466#if EV_PREPARE_ENABLE
3710 if (types & EV_PREPARE) 4467 if (types & EV_PREPARE)
3711 for (i = preparecnt; i--; ) 4468 for (i = preparecnt; i--; )
3712#if EV_EMBED_ENABLE 4469# if EV_EMBED_ENABLE
3713 if (ev_cb (prepares [i]) != embed_prepare_cb) 4470 if (ev_cb (prepares [i]) != embed_prepare_cb)
3714#endif 4471# endif
3715 cb (EV_A_ EV_PREPARE, prepares [i]); 4472 cb (EV_A_ EV_PREPARE, prepares [i]);
4473#endif
3716 4474
4475#if EV_CHECK_ENABLE
3717 if (types & EV_CHECK) 4476 if (types & EV_CHECK)
3718 for (i = checkcnt; i--; ) 4477 for (i = checkcnt; i--; )
3719 cb (EV_A_ EV_CHECK, checks [i]); 4478 cb (EV_A_ EV_CHECK, checks [i]);
4479#endif
3720 4480
4481#if EV_SIGNAL_ENABLE
3721 if (types & EV_SIGNAL) 4482 if (types & EV_SIGNAL)
3722 for (i = 0; i < EV_NSIG - 1; ++i) 4483 for (i = 0; i < EV_NSIG - 1; ++i)
3723 for (wl = signals [i].head; wl; ) 4484 for (wl = signals [i].head; wl; )
3724 { 4485 {
3725 wn = wl->next; 4486 wn = wl->next;
3726 cb (EV_A_ EV_SIGNAL, wl); 4487 cb (EV_A_ EV_SIGNAL, wl);
3727 wl = wn; 4488 wl = wn;
3728 } 4489 }
4490#endif
3729 4491
4492#if EV_CHILD_ENABLE
3730 if (types & EV_CHILD) 4493 if (types & EV_CHILD)
3731 for (i = EV_PID_HASHSIZE; i--; ) 4494 for (i = (EV_PID_HASHSIZE); i--; )
3732 for (wl = childs [i]; wl; ) 4495 for (wl = childs [i]; wl; )
3733 { 4496 {
3734 wn = wl->next; 4497 wn = wl->next;
3735 cb (EV_A_ EV_CHILD, wl); 4498 cb (EV_A_ EV_CHILD, wl);
3736 wl = wn; 4499 wl = wn;
3737 } 4500 }
4501#endif
3738/* EV_STAT 0x00001000 /* stat data changed */ 4502/* EV_STAT 0x00001000 /* stat data changed */
3739/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4503/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3740} 4504}
3741#endif 4505#endif
3742 4506
3743#if EV_MULTIPLICITY 4507#if EV_MULTIPLICITY
3744 #include "ev_wrap.h" 4508 #include "ev_wrap.h"
3745#endif 4509#endif
3746 4510
3747#ifdef __cplusplus
3748}
3749#endif
3750

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