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Comparing libev/ev.c (file contents):
Revision 1.336 by root, Wed Mar 10 08:19:38 2010 UTC vs.
Revision 1.420 by root, Wed Apr 18 05:44:42 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, */
218/* but consider reporting it, too! :) */ 247/* but consider reporting it, too! :) */
219# define EV_NSIG 65 248# define EV_NSIG 65
220#endif 249#endif
221 250
251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
253#endif
254
222#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
223# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ >= 2
224# define EV_USE_CLOCK_SYSCALL 1 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
225# else 258# else
226# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
227# endif 260# endif
228#endif 261#endif
229 262
230#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
231# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
232# define EV_USE_MONOTONIC 1 265# define EV_USE_MONOTONIC EV_FEATURE_OS
233# else 266# else
234# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
235# endif 268# endif
236#endif 269#endif
237 270
… …
239# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 272# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
240#endif 273#endif
241 274
242#ifndef EV_USE_NANOSLEEP 275#ifndef EV_USE_NANOSLEEP
243# if _POSIX_C_SOURCE >= 199309L 276# if _POSIX_C_SOURCE >= 199309L
244# define EV_USE_NANOSLEEP 1 277# define EV_USE_NANOSLEEP EV_FEATURE_OS
245# else 278# else
246# define EV_USE_NANOSLEEP 0 279# define EV_USE_NANOSLEEP 0
247# endif 280# endif
248#endif 281#endif
249 282
250#ifndef EV_USE_SELECT 283#ifndef EV_USE_SELECT
251# define EV_USE_SELECT 1 284# define EV_USE_SELECT EV_FEATURE_BACKENDS
252#endif 285#endif
253 286
254#ifndef EV_USE_POLL 287#ifndef EV_USE_POLL
255# ifdef _WIN32 288# ifdef _WIN32
256# define EV_USE_POLL 0 289# define EV_USE_POLL 0
257# else 290# else
258# define EV_USE_POLL 1 291# define EV_USE_POLL EV_FEATURE_BACKENDS
259# endif 292# endif
260#endif 293#endif
261 294
262#ifndef EV_USE_EPOLL 295#ifndef EV_USE_EPOLL
263# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 296# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
264# define EV_USE_EPOLL 1 297# define EV_USE_EPOLL EV_FEATURE_BACKENDS
265# else 298# else
266# define EV_USE_EPOLL 0 299# define EV_USE_EPOLL 0
267# endif 300# endif
268#endif 301#endif
269 302
… …
275# define EV_USE_PORT 0 308# define EV_USE_PORT 0
276#endif 309#endif
277 310
278#ifndef EV_USE_INOTIFY 311#ifndef EV_USE_INOTIFY
279# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
280# define EV_USE_INOTIFY 1 313# define EV_USE_INOTIFY EV_FEATURE_OS
281# else 314# else
282# define EV_USE_INOTIFY 0 315# define EV_USE_INOTIFY 0
283# endif 316# endif
284#endif 317#endif
285 318
286#ifndef EV_PID_HASHSIZE 319#ifndef EV_PID_HASHSIZE
287# if EV_MINIMAL 320# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
288# define EV_PID_HASHSIZE 1
289# else
290# define EV_PID_HASHSIZE 16
291# endif
292#endif 321#endif
293 322
294#ifndef EV_INOTIFY_HASHSIZE 323#ifndef EV_INOTIFY_HASHSIZE
295# if EV_MINIMAL 324# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
296# define EV_INOTIFY_HASHSIZE 1
297# else
298# define EV_INOTIFY_HASHSIZE 16
299# endif
300#endif 325#endif
301 326
302#ifndef EV_USE_EVENTFD 327#ifndef EV_USE_EVENTFD
303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 328# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
304# define EV_USE_EVENTFD 1 329# define EV_USE_EVENTFD EV_FEATURE_OS
305# else 330# else
306# define EV_USE_EVENTFD 0 331# define EV_USE_EVENTFD 0
307# endif 332# endif
308#endif 333#endif
309 334
310#ifndef EV_USE_SIGNALFD 335#ifndef EV_USE_SIGNALFD
311# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 336# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
312# define EV_USE_SIGNALFD 1 337# define EV_USE_SIGNALFD EV_FEATURE_OS
313# else 338# else
314# define EV_USE_SIGNALFD 0 339# define EV_USE_SIGNALFD 0
315# endif 340# endif
316#endif 341#endif
317 342
… …
320# define EV_USE_4HEAP 1 345# define EV_USE_4HEAP 1
321# define EV_HEAP_CACHE_AT 1 346# define EV_HEAP_CACHE_AT 1
322#endif 347#endif
323 348
324#ifndef EV_VERIFY 349#ifndef EV_VERIFY
325# define EV_VERIFY !EV_MINIMAL 350# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
326#endif 351#endif
327 352
328#ifndef EV_USE_4HEAP 353#ifndef EV_USE_4HEAP
329# define EV_USE_4HEAP !EV_MINIMAL 354# define EV_USE_4HEAP EV_FEATURE_DATA
330#endif 355#endif
331 356
332#ifndef EV_HEAP_CACHE_AT 357#ifndef EV_HEAP_CACHE_AT
333# define EV_HEAP_CACHE_AT !EV_MINIMAL 358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
334#endif 359#endif
335 360
336/* 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, */
337/* which makes programs even slower. might work on other unices, too. */ 362/* which makes programs even slower. might work on other unices, too. */
338#if EV_USE_CLOCK_SYSCALL 363#if EV_USE_CLOCK_SYSCALL
… …
369# undef EV_USE_INOTIFY 394# undef EV_USE_INOTIFY
370# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
371#endif 396#endif
372 397
373#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
374# ifndef _WIN32 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined _WIN32 && !defined __hpux
375# include <sys/select.h> 401# include <sys/select.h>
376# endif 402# endif
377#endif 403#endif
378 404
379#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
380# include <sys/utsname.h>
381# include <sys/statfs.h> 406# include <sys/statfs.h>
382# include <sys/inotify.h> 407# include <sys/inotify.h>
383/* 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 */
384# ifndef IN_DONT_FOLLOW 409# ifndef IN_DONT_FOLLOW
385# undef EV_USE_INOTIFY 410# undef EV_USE_INOTIFY
… …
402# define EFD_CLOEXEC O_CLOEXEC 427# define EFD_CLOEXEC O_CLOEXEC
403# else 428# else
404# define EFD_CLOEXEC 02000000 429# define EFD_CLOEXEC 02000000
405# endif 430# endif
406# endif 431# endif
407# ifdef __cplusplus
408extern "C" {
409# endif
410int (eventfd) (unsigned int initval, int flags); 432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
411# ifdef __cplusplus
412}
413# endif
414#endif 433#endif
415 434
416#if EV_USE_SIGNALFD 435#if EV_USE_SIGNALFD
417/* 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 */
418# include <stdint.h> 437# include <stdint.h>
… …
424# define SFD_CLOEXEC O_CLOEXEC 443# define SFD_CLOEXEC O_CLOEXEC
425# else 444# else
426# define SFD_CLOEXEC 02000000 445# define SFD_CLOEXEC 02000000
427# endif 446# endif
428# endif 447# endif
429# ifdef __cplusplus
430extern "C" {
431# endif
432int signalfd (int fd, const sigset_t *mask, int flags); 448EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
433 449
434struct signalfd_siginfo 450struct signalfd_siginfo
435{ 451{
436 uint32_t ssi_signo; 452 uint32_t ssi_signo;
437 char pad[128 - sizeof (uint32_t)]; 453 char pad[128 - sizeof (uint32_t)];
438}; 454};
439# ifdef __cplusplus
440}
441# endif 455#endif
442#endif
443
444 456
445/**/ 457/**/
446 458
447#if EV_VERIFY >= 3 459#if EV_VERIFY >= 3
448# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 460# define EV_FREQUENT_CHECK ev_verify (EV_A)
449#else 461#else
450# define EV_FREQUENT_CHECK do { } while (0) 462# define EV_FREQUENT_CHECK do { } while (0)
451#endif 463#endif
452 464
453/* 465/*
454 * This is used to avoid floating point rounding problems. 466 * This is used to work around floating point rounding problems.
455 * It is added to ev_rt_now when scheduling periodics
456 * to ensure progress, time-wise, even when rounding
457 * errors are against us.
458 * This value is good at least till the year 4000. 467 * This value is good at least till the year 4000.
459 * Better solutions welcome.
460 */ 468 */
461#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 */
462 471
463#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) */
464#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) */
465 474
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;
466#if __GNUC__ >= 4 519 #if __GNUC__
467# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
468# 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
469#else 526#else
470# define expect(expr,value) (expr) 527 #include <inttypes.h>
471# define noinline
472# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
473# define inline
474# 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)))
475#endif 542 #endif
543#endif
476 544
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. */
477#define expect_false(expr) expect ((expr) != 0, 0) 708#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
478#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
479#define inline_size static inline 960#define inline_size ecb_inline
480 961
481#if EV_MINIMAL 962#if EV_FEATURE_CODE
963# define inline_speed ecb_inline
964#else
482# define inline_speed static noinline 965# define inline_speed static noinline
483#else
484# define inline_speed static inline
485#endif 966#endif
486 967
487#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 968#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
488 969
489#if EV_MINPRI == EV_MAXPRI 970#if EV_MINPRI == EV_MAXPRI
… …
502#define ev_active(w) ((W)(w))->active 983#define ev_active(w) ((W)(w))->active
503#define ev_at(w) ((WT)(w))->at 984#define ev_at(w) ((WT)(w))->at
504 985
505#if EV_USE_REALTIME 986#if EV_USE_REALTIME
506/* 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 */
507/* giving it a reasonably high chance of working on typical architetcures */ 988/* giving it a reasonably high chance of working on typical architectures */
508static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 989static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
509#endif 990#endif
510 991
511#if EV_USE_MONOTONIC 992#if EV_USE_MONOTONIC
512static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 993static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
526# include "ev_win32.c" 1007# include "ev_win32.c"
527#endif 1008#endif
528 1009
529/*****************************************************************************/ 1010/*****************************************************************************/
530 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
531#if EV_AVOID_STDIO 1102#if EV_AVOID_STDIO
532static void noinline 1103static void noinline ecb_cold
533ev_printerr (const char *msg) 1104ev_printerr (const char *msg)
534{ 1105{
535 write (STDERR_FILENO, msg, strlen (msg)); 1106 write (STDERR_FILENO, msg, strlen (msg));
536} 1107}
537#endif 1108#endif
538 1109
539static void (*syserr_cb)(const char *msg); 1110static void (*syserr_cb)(const char *msg) EV_THROW;
540 1111
541void 1112void ecb_cold
542ev_set_syserr_cb (void (*cb)(const char *msg)) 1113ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
543{ 1114{
544 syserr_cb = cb; 1115 syserr_cb = cb;
545} 1116}
546 1117
547static void noinline 1118static void noinline ecb_cold
548ev_syserr (const char *msg) 1119ev_syserr (const char *msg)
549{ 1120{
550 if (!msg) 1121 if (!msg)
551 msg = "(libev) system error"; 1122 msg = "(libev) system error";
552 1123
553 if (syserr_cb) 1124 if (syserr_cb)
554 syserr_cb (msg); 1125 syserr_cb (msg);
555 else 1126 else
556 { 1127 {
557#if EV_AVOID_STDIO 1128#if EV_AVOID_STDIO
558 const char *err = strerror (errno);
559
560 ev_printerr (msg); 1129 ev_printerr (msg);
561 ev_printerr (": "); 1130 ev_printerr (": ");
562 ev_printerr (err); 1131 ev_printerr (strerror (errno));
563 ev_printerr ("\n"); 1132 ev_printerr ("\n");
564#else 1133#else
565 perror (msg); 1134 perror (msg);
566#endif 1135#endif
567 abort (); 1136 abort ();
… …
585 free (ptr); 1154 free (ptr);
586 return 0; 1155 return 0;
587#endif 1156#endif
588} 1157}
589 1158
590static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1159static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
591 1160
592void 1161void ecb_cold
593ev_set_allocator (void *(*cb)(void *ptr, long size)) 1162ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
594{ 1163{
595 alloc = cb; 1164 alloc = cb;
596} 1165}
597 1166
598inline_speed void * 1167inline_speed void *
… …
601 ptr = alloc (ptr, size); 1170 ptr = alloc (ptr, size);
602 1171
603 if (!ptr && size) 1172 if (!ptr && size)
604 { 1173 {
605#if EV_AVOID_STDIO 1174#if EV_AVOID_STDIO
606 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1175 ev_printerr ("(libev) memory allocation failed, aborting.\n");
607#else 1176#else
608 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1177 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
609#endif 1178#endif
610 abort (); 1179 abort ();
611 } 1180 }
612 1181
613 return ptr; 1182 return ptr;
… …
630 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 */
631 unsigned char unused; 1200 unsigned char unused;
632#if EV_USE_EPOLL 1201#if EV_USE_EPOLL
633 unsigned int egen; /* generation counter to counter epoll bugs */ 1202 unsigned int egen; /* generation counter to counter epoll bugs */
634#endif 1203#endif
635#if EV_SELECT_IS_WINSOCKET 1204#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
636 SOCKET handle; 1205 SOCKET handle;
1206#endif
1207#if EV_USE_IOCP
1208 OVERLAPPED or, ow;
637#endif 1209#endif
638} ANFD; 1210} ANFD;
639 1211
640/* stores the pending event set for a given watcher */ 1212/* stores the pending event set for a given watcher */
641typedef struct 1213typedef struct
… …
683 #undef VAR 1255 #undef VAR
684 }; 1256 };
685 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
686 1258
687 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
688 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 */
689 1261
690#else 1262#else
691 1263
692 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 */
693 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
694 #include "ev_vars.h" 1266 #include "ev_vars.h"
695 #undef VAR 1267 #undef VAR
696 1268
697 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
698 1270
699#endif 1271#endif
700 1272
701#if EV_MINIMAL < 2 1273#if EV_FEATURE_API
702# 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)
703# 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)
704# define EV_INVOKE_PENDING invoke_cb (EV_A) 1276# define EV_INVOKE_PENDING invoke_cb (EV_A)
705#else 1277#else
706# define EV_RELEASE_CB (void)0 1278# define EV_RELEASE_CB (void)0
707# define EV_ACQUIRE_CB (void)0 1279# define EV_ACQUIRE_CB (void)0
708# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1280# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
709#endif 1281#endif
710 1282
711#define EVUNLOOP_RECURSE 0x80 1283#define EVBREAK_RECURSE 0x80
712 1284
713/*****************************************************************************/ 1285/*****************************************************************************/
714 1286
715#ifndef EV_HAVE_EV_TIME 1287#ifndef EV_HAVE_EV_TIME
716ev_tstamp 1288ev_tstamp
717ev_time (void) 1289ev_time (void) EV_THROW
718{ 1290{
719#if EV_USE_REALTIME 1291#if EV_USE_REALTIME
720 if (expect_true (have_realtime)) 1292 if (expect_true (have_realtime))
721 { 1293 {
722 struct timespec ts; 1294 struct timespec ts;
… …
746 return ev_time (); 1318 return ev_time ();
747} 1319}
748 1320
749#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
750ev_tstamp 1322ev_tstamp
751ev_now (EV_P) 1323ev_now (EV_P) EV_THROW
752{ 1324{
753 return ev_rt_now; 1325 return ev_rt_now;
754} 1326}
755#endif 1327#endif
756 1328
757void 1329void
758ev_sleep (ev_tstamp delay) 1330ev_sleep (ev_tstamp delay) EV_THROW
759{ 1331{
760 if (delay > 0.) 1332 if (delay > 0.)
761 { 1333 {
762#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
763 struct timespec ts; 1335 struct timespec ts;
764 1336
765 ts.tv_sec = (time_t)delay; 1337 EV_TS_SET (ts, delay);
766 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
767
768 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
769#elif defined(_WIN32) 1339#elif defined _WIN32
770 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
771#else 1341#else
772 struct timeval tv; 1342 struct timeval tv;
773 1343
774 tv.tv_sec = (time_t)delay;
775 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
776
777 /* 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 */
778 /* something not guaranteed by newer posix versions, but guaranteed */ 1345 /* something not guaranteed by newer posix versions, but guaranteed */
779 /* by older ones */ 1346 /* by older ones */
1347 EV_TV_SET (tv, delay);
780 select (0, 0, 0, 0, &tv); 1348 select (0, 0, 0, 0, &tv);
781#endif 1349#endif
782 } 1350 }
783} 1351}
784 1352
785/*****************************************************************************/ 1353/*****************************************************************************/
786 1354
787#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 */
788 1356
789/* find a suitable new size for the given array, */ 1357/* find a suitable new size for the given array, */
790/* hopefully by rounding to a ncie-to-malloc size */ 1358/* hopefully by rounding to a nice-to-malloc size */
791inline_size int 1359inline_size int
792array_nextsize (int elem, int cur, int cnt) 1360array_nextsize (int elem, int cur, int cnt)
793{ 1361{
794 int ncur = cur + 1; 1362 int ncur = cur + 1;
795 1363
796 do 1364 do
797 ncur <<= 1; 1365 ncur <<= 1;
798 while (cnt > ncur); 1366 while (cnt > ncur);
799 1367
800 /* 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 */
801 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
802 { 1370 {
803 ncur *= elem; 1371 ncur *= elem;
804 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);
805 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
807 } 1375 }
808 1376
809 return ncur; 1377 return ncur;
810} 1378}
811 1379
812static noinline void * 1380static void * noinline ecb_cold
813array_realloc (int elem, void *base, int *cur, int cnt) 1381array_realloc (int elem, void *base, int *cur, int cnt)
814{ 1382{
815 *cur = array_nextsize (elem, *cur, cnt); 1383 *cur = array_nextsize (elem, *cur, cnt);
816 return ev_realloc (base, elem * *cur); 1384 return ev_realloc (base, elem * *cur);
817} 1385}
… …
820 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1388 memset ((void *)(base), 0, sizeof (*(base)) * (count))
821 1389
822#define array_needsize(type,base,cur,cnt,init) \ 1390#define array_needsize(type,base,cur,cnt,init) \
823 if (expect_false ((cnt) > (cur))) \ 1391 if (expect_false ((cnt) > (cur))) \
824 { \ 1392 { \
825 int ocur_ = (cur); \ 1393 int ecb_unused ocur_ = (cur); \
826 (base) = (type *)array_realloc \ 1394 (base) = (type *)array_realloc \
827 (sizeof (type), (base), &(cur), (cnt)); \ 1395 (sizeof (type), (base), &(cur), (cnt)); \
828 init ((base) + (ocur_), (cur) - ocur_); \ 1396 init ((base) + (ocur_), (cur) - ocur_); \
829 } 1397 }
830 1398
… …
848pendingcb (EV_P_ ev_prepare *w, int revents) 1416pendingcb (EV_P_ ev_prepare *w, int revents)
849{ 1417{
850} 1418}
851 1419
852void noinline 1420void noinline
853ev_feed_event (EV_P_ void *w, int revents) 1421ev_feed_event (EV_P_ void *w, int revents) EV_THROW
854{ 1422{
855 W w_ = (W)w; 1423 W w_ = (W)w;
856 int pri = ABSPRI (w_); 1424 int pri = ABSPRI (w_);
857 1425
858 if (expect_false (w_->pending)) 1426 if (expect_false (w_->pending))
… …
891} 1459}
892 1460
893/*****************************************************************************/ 1461/*****************************************************************************/
894 1462
895inline_speed void 1463inline_speed void
896fd_event_nc (EV_P_ int fd, int revents) 1464fd_event_nocheck (EV_P_ int fd, int revents)
897{ 1465{
898 ANFD *anfd = anfds + fd; 1466 ANFD *anfd = anfds + fd;
899 ev_io *w; 1467 ev_io *w;
900 1468
901 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1469 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
913fd_event (EV_P_ int fd, int revents) 1481fd_event (EV_P_ int fd, int revents)
914{ 1482{
915 ANFD *anfd = anfds + fd; 1483 ANFD *anfd = anfds + fd;
916 1484
917 if (expect_true (!anfd->reify)) 1485 if (expect_true (!anfd->reify))
918 fd_event_nc (EV_A_ fd, revents); 1486 fd_event_nocheck (EV_A_ fd, revents);
919} 1487}
920 1488
921void 1489void
922ev_feed_fd_event (EV_P_ int fd, int revents) 1490ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
923{ 1491{
924 if (fd >= 0 && fd < anfdmax) 1492 if (fd >= 0 && fd < anfdmax)
925 fd_event_nc (EV_A_ fd, revents); 1493 fd_event_nocheck (EV_A_ fd, revents);
926} 1494}
927 1495
928/* make sure the external fd watch events are in-sync */ 1496/* make sure the external fd watch events are in-sync */
929/* with the kernel/libev internal state */ 1497/* with the kernel/libev internal state */
930inline_size void 1498inline_size void
931fd_reify (EV_P) 1499fd_reify (EV_P)
932{ 1500{
933 int i; 1501 int i;
934 1502
1503#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1504 for (i = 0; i < fdchangecnt; ++i)
1505 {
1506 int fd = fdchanges [i];
1507 ANFD *anfd = anfds + fd;
1508
1509 if (anfd->reify & EV__IOFDSET && anfd->head)
1510 {
1511 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1512
1513 if (handle != anfd->handle)
1514 {
1515 unsigned long arg;
1516
1517 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1518
1519 /* handle changed, but fd didn't - we need to do it in two steps */
1520 backend_modify (EV_A_ fd, anfd->events, 0);
1521 anfd->events = 0;
1522 anfd->handle = handle;
1523 }
1524 }
1525 }
1526#endif
1527
935 for (i = 0; i < fdchangecnt; ++i) 1528 for (i = 0; i < fdchangecnt; ++i)
936 { 1529 {
937 int fd = fdchanges [i]; 1530 int fd = fdchanges [i];
938 ANFD *anfd = anfds + fd; 1531 ANFD *anfd = anfds + fd;
939 ev_io *w; 1532 ev_io *w;
940 1533
941 unsigned char events = 0; 1534 unsigned char o_events = anfd->events;
1535 unsigned char o_reify = anfd->reify;
942 1536
943 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1537 anfd->reify = 0;
944 events |= (unsigned char)w->events;
945 1538
946#if EV_SELECT_IS_WINSOCKET 1539 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
947 if (events)
948 { 1540 {
949 unsigned long arg; 1541 anfd->events = 0;
950 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1542
951 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1543 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1544 anfd->events |= (unsigned char)w->events;
1545
1546 if (o_events != anfd->events)
1547 o_reify = EV__IOFDSET; /* actually |= */
952 } 1548 }
953#endif
954 1549
955 { 1550 if (o_reify & EV__IOFDSET)
956 unsigned char o_events = anfd->events;
957 unsigned char o_reify = anfd->reify;
958
959 anfd->reify = 0;
960 anfd->events = events;
961
962 if (o_events != events || o_reify & EV__IOFDSET)
963 backend_modify (EV_A_ fd, o_events, events); 1551 backend_modify (EV_A_ fd, o_events, anfd->events);
964 }
965 } 1552 }
966 1553
967 fdchangecnt = 0; 1554 fdchangecnt = 0;
968} 1555}
969 1556
… …
981 fdchanges [fdchangecnt - 1] = fd; 1568 fdchanges [fdchangecnt - 1] = fd;
982 } 1569 }
983} 1570}
984 1571
985/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1572/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
986inline_speed void 1573inline_speed void ecb_cold
987fd_kill (EV_P_ int fd) 1574fd_kill (EV_P_ int fd)
988{ 1575{
989 ev_io *w; 1576 ev_io *w;
990 1577
991 while ((w = (ev_io *)anfds [fd].head)) 1578 while ((w = (ev_io *)anfds [fd].head))
… …
994 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1581 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
995 } 1582 }
996} 1583}
997 1584
998/* check whether the given fd is actually valid, for error recovery */ 1585/* check whether the given fd is actually valid, for error recovery */
999inline_size int 1586inline_size int ecb_cold
1000fd_valid (int fd) 1587fd_valid (int fd)
1001{ 1588{
1002#ifdef _WIN32 1589#ifdef _WIN32
1003 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1590 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1004#else 1591#else
1005 return fcntl (fd, F_GETFD) != -1; 1592 return fcntl (fd, F_GETFD) != -1;
1006#endif 1593#endif
1007} 1594}
1008 1595
1009/* called on EBADF to verify fds */ 1596/* called on EBADF to verify fds */
1010static void noinline 1597static void noinline ecb_cold
1011fd_ebadf (EV_P) 1598fd_ebadf (EV_P)
1012{ 1599{
1013 int fd; 1600 int fd;
1014 1601
1015 for (fd = 0; fd < anfdmax; ++fd) 1602 for (fd = 0; fd < anfdmax; ++fd)
… …
1017 if (!fd_valid (fd) && errno == EBADF) 1604 if (!fd_valid (fd) && errno == EBADF)
1018 fd_kill (EV_A_ fd); 1605 fd_kill (EV_A_ fd);
1019} 1606}
1020 1607
1021/* called on ENOMEM in select/poll to kill some fds and retry */ 1608/* called on ENOMEM in select/poll to kill some fds and retry */
1022static void noinline 1609static void noinline ecb_cold
1023fd_enomem (EV_P) 1610fd_enomem (EV_P)
1024{ 1611{
1025 int fd; 1612 int fd;
1026 1613
1027 for (fd = anfdmax; fd--; ) 1614 for (fd = anfdmax; fd--; )
… …
1062} 1649}
1063 1650
1064/*****************************************************************************/ 1651/*****************************************************************************/
1065 1652
1066/* 1653/*
1067 * the heap functions want a real array index. array index 0 uis guaranteed to not 1654 * the heap functions want a real array index. array index 0 is guaranteed to not
1068 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1655 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1069 * the branching factor of the d-tree. 1656 * the branching factor of the d-tree.
1070 */ 1657 */
1071 1658
1072/* 1659/*
… …
1222 1809
1223/*****************************************************************************/ 1810/*****************************************************************************/
1224 1811
1225#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 1812#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1226 1813
1227static void noinline 1814static void noinline ecb_cold
1228evpipe_init (EV_P) 1815evpipe_init (EV_P)
1229{ 1816{
1230 if (!ev_is_active (&pipe_w)) 1817 if (!ev_is_active (&pipe_w))
1231 { 1818 {
1232# if EV_USE_EVENTFD 1819# if EV_USE_EVENTFD
… …
1254 ev_io_start (EV_A_ &pipe_w); 1841 ev_io_start (EV_A_ &pipe_w);
1255 ev_unref (EV_A); /* watcher should not keep loop alive */ 1842 ev_unref (EV_A); /* watcher should not keep loop alive */
1256 } 1843 }
1257} 1844}
1258 1845
1259inline_size void 1846inline_speed void
1260evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1847evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1261{ 1848{
1262 if (!*flag) 1849 if (expect_true (*flag))
1850 return;
1851
1852 *flag = 1;
1853
1854 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1855
1856 pipe_write_skipped = 1;
1857
1858 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1859
1860 if (pipe_write_wanted)
1263 { 1861 {
1862 int old_errno;
1863
1864 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1865
1264 int old_errno = errno; /* save errno because write might clobber it */ 1866 old_errno = errno; /* save errno because write will clobber it */
1265 char dummy;
1266
1267 *flag = 1;
1268 1867
1269#if EV_USE_EVENTFD 1868#if EV_USE_EVENTFD
1270 if (evfd >= 0) 1869 if (evfd >= 0)
1271 { 1870 {
1272 uint64_t counter = 1; 1871 uint64_t counter = 1;
1273 write (evfd, &counter, sizeof (uint64_t)); 1872 write (evfd, &counter, sizeof (uint64_t));
1274 } 1873 }
1275 else 1874 else
1276#endif 1875#endif
1876 {
1877 /* win32 people keep sending patches that change this write() to send() */
1878 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1879 /* so when you think this write should be a send instead, please find out */
1880 /* where your send() is from - it's definitely not the microsoft send, and */
1881 /* tell me. thank you. */
1882 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1883 /* check the ev documentation on how to use this flag */
1277 write (evpipe [1], &dummy, 1); 1884 write (evpipe [1], &(evpipe [1]), 1);
1885 }
1278 1886
1279 errno = old_errno; 1887 errno = old_errno;
1280 } 1888 }
1281} 1889}
1282 1890
… …
1285static void 1893static void
1286pipecb (EV_P_ ev_io *iow, int revents) 1894pipecb (EV_P_ ev_io *iow, int revents)
1287{ 1895{
1288 int i; 1896 int i;
1289 1897
1898 if (revents & EV_READ)
1899 {
1290#if EV_USE_EVENTFD 1900#if EV_USE_EVENTFD
1291 if (evfd >= 0) 1901 if (evfd >= 0)
1292 { 1902 {
1293 uint64_t counter; 1903 uint64_t counter;
1294 read (evfd, &counter, sizeof (uint64_t)); 1904 read (evfd, &counter, sizeof (uint64_t));
1295 } 1905 }
1296 else 1906 else
1297#endif 1907#endif
1298 { 1908 {
1299 char dummy; 1909 char dummy;
1910 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1300 read (evpipe [0], &dummy, 1); 1911 read (evpipe [0], &dummy, 1);
1912 }
1301 } 1913 }
1302 1914
1915 pipe_write_skipped = 0;
1916
1917#if EV_SIGNAL_ENABLE
1303 if (sig_pending) 1918 if (sig_pending)
1304 { 1919 {
1305 sig_pending = 0; 1920 sig_pending = 0;
1306 1921
1307 for (i = EV_NSIG - 1; i--; ) 1922 for (i = EV_NSIG - 1; i--; )
1308 if (expect_false (signals [i].pending)) 1923 if (expect_false (signals [i].pending))
1309 ev_feed_signal_event (EV_A_ i + 1); 1924 ev_feed_signal_event (EV_A_ i + 1);
1310 } 1925 }
1926#endif
1311 1927
1312#if EV_ASYNC_ENABLE 1928#if EV_ASYNC_ENABLE
1313 if (async_pending) 1929 if (async_pending)
1314 { 1930 {
1315 async_pending = 0; 1931 async_pending = 0;
… …
1324#endif 1940#endif
1325} 1941}
1326 1942
1327/*****************************************************************************/ 1943/*****************************************************************************/
1328 1944
1945void
1946ev_feed_signal (int signum) EV_THROW
1947{
1948#if EV_MULTIPLICITY
1949 EV_P = signals [signum - 1].loop;
1950
1951 if (!EV_A)
1952 return;
1953#endif
1954
1955 if (!ev_active (&pipe_w))
1956 return;
1957
1958 signals [signum - 1].pending = 1;
1959 evpipe_write (EV_A_ &sig_pending);
1960}
1961
1329static void 1962static void
1330ev_sighandler (int signum) 1963ev_sighandler (int signum)
1331{ 1964{
1332#if EV_MULTIPLICITY
1333 EV_P = signals [signum - 1].loop;
1334#endif
1335
1336#ifdef _WIN32 1965#ifdef _WIN32
1337 signal (signum, ev_sighandler); 1966 signal (signum, ev_sighandler);
1338#endif 1967#endif
1339 1968
1340 signals [signum - 1].pending = 1; 1969 ev_feed_signal (signum);
1341 evpipe_write (EV_A_ &sig_pending);
1342} 1970}
1343 1971
1344void noinline 1972void noinline
1345ev_feed_signal_event (EV_P_ int signum) 1973ev_feed_signal_event (EV_P_ int signum) EV_THROW
1346{ 1974{
1347 WL w; 1975 WL w;
1348 1976
1349 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1977 if (expect_false (signum <= 0 || signum > EV_NSIG))
1350 return; 1978 return;
… …
1403child_reap (EV_P_ int chain, int pid, int status) 2031child_reap (EV_P_ int chain, int pid, int status)
1404{ 2032{
1405 ev_child *w; 2033 ev_child *w;
1406 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2034 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1407 2035
1408 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2036 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1409 { 2037 {
1410 if ((w->pid == pid || !w->pid) 2038 if ((w->pid == pid || !w->pid)
1411 && (!traced || (w->flags & 1))) 2039 && (!traced || (w->flags & 1)))
1412 { 2040 {
1413 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2041 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1438 /* make sure we are called again until all children have been reaped */ 2066 /* make sure we are called again until all children have been reaped */
1439 /* we need to do it this way so that the callback gets called before we continue */ 2067 /* we need to do it this way so that the callback gets called before we continue */
1440 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2068 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1441 2069
1442 child_reap (EV_A_ pid, pid, status); 2070 child_reap (EV_A_ pid, pid, status);
1443 if (EV_PID_HASHSIZE > 1) 2071 if ((EV_PID_HASHSIZE) > 1)
1444 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2072 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1445} 2073}
1446 2074
1447#endif 2075#endif
1448 2076
1449/*****************************************************************************/ 2077/*****************************************************************************/
1450 2078
2079#if EV_USE_IOCP
2080# include "ev_iocp.c"
2081#endif
1451#if EV_USE_PORT 2082#if EV_USE_PORT
1452# include "ev_port.c" 2083# include "ev_port.c"
1453#endif 2084#endif
1454#if EV_USE_KQUEUE 2085#if EV_USE_KQUEUE
1455# include "ev_kqueue.c" 2086# include "ev_kqueue.c"
… …
1462#endif 2093#endif
1463#if EV_USE_SELECT 2094#if EV_USE_SELECT
1464# include "ev_select.c" 2095# include "ev_select.c"
1465#endif 2096#endif
1466 2097
1467int 2098int ecb_cold
1468ev_version_major (void) 2099ev_version_major (void) EV_THROW
1469{ 2100{
1470 return EV_VERSION_MAJOR; 2101 return EV_VERSION_MAJOR;
1471} 2102}
1472 2103
1473int 2104int ecb_cold
1474ev_version_minor (void) 2105ev_version_minor (void) EV_THROW
1475{ 2106{
1476 return EV_VERSION_MINOR; 2107 return EV_VERSION_MINOR;
1477} 2108}
1478 2109
1479/* return true if we are running with elevated privileges and should ignore env variables */ 2110/* return true if we are running with elevated privileges and should ignore env variables */
1480int inline_size 2111int inline_size ecb_cold
1481enable_secure (void) 2112enable_secure (void)
1482{ 2113{
1483#ifdef _WIN32 2114#ifdef _WIN32
1484 return 0; 2115 return 0;
1485#else 2116#else
1486 return getuid () != geteuid () 2117 return getuid () != geteuid ()
1487 || getgid () != getegid (); 2118 || getgid () != getegid ();
1488#endif 2119#endif
1489} 2120}
1490 2121
1491unsigned int 2122unsigned int ecb_cold
1492ev_supported_backends (void) 2123ev_supported_backends (void) EV_THROW
1493{ 2124{
1494 unsigned int flags = 0; 2125 unsigned int flags = 0;
1495 2126
1496 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2127 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1497 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2128 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1500 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2131 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1501 2132
1502 return flags; 2133 return flags;
1503} 2134}
1504 2135
1505unsigned int 2136unsigned int ecb_cold
1506ev_recommended_backends (void) 2137ev_recommended_backends (void) EV_THROW
1507{ 2138{
1508 unsigned int flags = ev_supported_backends (); 2139 unsigned int flags = ev_supported_backends ();
1509 2140
1510#ifndef __NetBSD__ 2141#ifndef __NetBSD__
1511 /* kqueue is borked on everything but netbsd apparently */ 2142 /* kqueue is borked on everything but netbsd apparently */
… …
1515#ifdef __APPLE__ 2146#ifdef __APPLE__
1516 /* only select works correctly on that "unix-certified" platform */ 2147 /* only select works correctly on that "unix-certified" platform */
1517 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2148 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1518 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2149 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1519#endif 2150#endif
2151#ifdef __FreeBSD__
2152 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2153#endif
1520 2154
1521 return flags; 2155 return flags;
1522} 2156}
1523 2157
2158unsigned int ecb_cold
2159ev_embeddable_backends (void) EV_THROW
2160{
2161 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2162
2163 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2164 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2165 flags &= ~EVBACKEND_EPOLL;
2166
2167 return flags;
2168}
2169
1524unsigned int 2170unsigned int
1525ev_embeddable_backends (void) 2171ev_backend (EV_P) EV_THROW
1526{ 2172{
1527 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2173 return backend;
1528
1529 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1530 /* please fix it and tell me how to detect the fix */
1531 flags &= ~EVBACKEND_EPOLL;
1532
1533 return flags;
1534} 2174}
1535 2175
2176#if EV_FEATURE_API
1536unsigned int 2177unsigned int
1537ev_backend (EV_P) 2178ev_iteration (EV_P) EV_THROW
1538{ 2179{
1539 return backend; 2180 return loop_count;
1540} 2181}
1541 2182
1542#if EV_MINIMAL < 2
1543unsigned int 2183unsigned int
1544ev_loop_count (EV_P) 2184ev_depth (EV_P) EV_THROW
1545{
1546 return loop_count;
1547}
1548
1549unsigned int
1550ev_loop_depth (EV_P)
1551{ 2185{
1552 return loop_depth; 2186 return loop_depth;
1553} 2187}
1554 2188
1555void 2189void
1556ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2190ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1557{ 2191{
1558 io_blocktime = interval; 2192 io_blocktime = interval;
1559} 2193}
1560 2194
1561void 2195void
1562ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2196ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1563{ 2197{
1564 timeout_blocktime = interval; 2198 timeout_blocktime = interval;
1565} 2199}
1566 2200
1567void 2201void
1568ev_set_userdata (EV_P_ void *data) 2202ev_set_userdata (EV_P_ void *data) EV_THROW
1569{ 2203{
1570 userdata = data; 2204 userdata = data;
1571} 2205}
1572 2206
1573void * 2207void *
1574ev_userdata (EV_P) 2208ev_userdata (EV_P) EV_THROW
1575{ 2209{
1576 return userdata; 2210 return userdata;
1577} 2211}
1578 2212
2213void
1579void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2214ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1580{ 2215{
1581 invoke_cb = invoke_pending_cb; 2216 invoke_cb = invoke_pending_cb;
1582} 2217}
1583 2218
2219void
1584void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2220ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) EV_THROW
1585{ 2221{
1586 release_cb = release; 2222 release_cb = release;
1587 acquire_cb = acquire; 2223 acquire_cb = acquire;
1588} 2224}
1589#endif 2225#endif
1590 2226
1591/* initialise a loop structure, must be zero-initialised */ 2227/* initialise a loop structure, must be zero-initialised */
1592static void noinline 2228static void noinline ecb_cold
1593loop_init (EV_P_ unsigned int flags) 2229loop_init (EV_P_ unsigned int flags) EV_THROW
1594{ 2230{
1595 if (!backend) 2231 if (!backend)
1596 { 2232 {
2233 origflags = flags;
2234
1597#if EV_USE_REALTIME 2235#if EV_USE_REALTIME
1598 if (!have_realtime) 2236 if (!have_realtime)
1599 { 2237 {
1600 struct timespec ts; 2238 struct timespec ts;
1601 2239
… …
1623 if (!(flags & EVFLAG_NOENV) 2261 if (!(flags & EVFLAG_NOENV)
1624 && !enable_secure () 2262 && !enable_secure ()
1625 && getenv ("LIBEV_FLAGS")) 2263 && getenv ("LIBEV_FLAGS"))
1626 flags = atoi (getenv ("LIBEV_FLAGS")); 2264 flags = atoi (getenv ("LIBEV_FLAGS"));
1627 2265
1628 ev_rt_now = ev_time (); 2266 ev_rt_now = ev_time ();
1629 mn_now = get_clock (); 2267 mn_now = get_clock ();
1630 now_floor = mn_now; 2268 now_floor = mn_now;
1631 rtmn_diff = ev_rt_now - mn_now; 2269 rtmn_diff = ev_rt_now - mn_now;
1632#if EV_MINIMAL < 2 2270#if EV_FEATURE_API
1633 invoke_cb = ev_invoke_pending; 2271 invoke_cb = ev_invoke_pending;
1634#endif 2272#endif
1635 2273
1636 io_blocktime = 0.; 2274 io_blocktime = 0.;
1637 timeout_blocktime = 0.; 2275 timeout_blocktime = 0.;
1638 backend = 0; 2276 backend = 0;
1639 backend_fd = -1; 2277 backend_fd = -1;
1640 sig_pending = 0; 2278 sig_pending = 0;
1641#if EV_ASYNC_ENABLE 2279#if EV_ASYNC_ENABLE
1642 async_pending = 0; 2280 async_pending = 0;
1643#endif 2281#endif
2282 pipe_write_skipped = 0;
2283 pipe_write_wanted = 0;
1644#if EV_USE_INOTIFY 2284#if EV_USE_INOTIFY
1645 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2285 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1646#endif 2286#endif
1647#if EV_USE_SIGNALFD 2287#if EV_USE_SIGNALFD
1648 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2288 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1649#endif 2289#endif
1650 2290
1651 if (!(flags & 0x0000ffffU)) 2291 if (!(flags & EVBACKEND_MASK))
1652 flags |= ev_recommended_backends (); 2292 flags |= ev_recommended_backends ();
1653 2293
2294#if EV_USE_IOCP
2295 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2296#endif
1654#if EV_USE_PORT 2297#if EV_USE_PORT
1655 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2298 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1656#endif 2299#endif
1657#if EV_USE_KQUEUE 2300#if EV_USE_KQUEUE
1658 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2301 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1675#endif 2318#endif
1676 } 2319 }
1677} 2320}
1678 2321
1679/* free up a loop structure */ 2322/* free up a loop structure */
1680static void noinline 2323void ecb_cold
1681loop_destroy (EV_P) 2324ev_loop_destroy (EV_P) EV_THROW
1682{ 2325{
1683 int i; 2326 int i;
2327
2328#if EV_MULTIPLICITY
2329 /* mimic free (0) */
2330 if (!EV_A)
2331 return;
2332#endif
2333
2334#if EV_CLEANUP_ENABLE
2335 /* queue cleanup watchers (and execute them) */
2336 if (expect_false (cleanupcnt))
2337 {
2338 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2339 EV_INVOKE_PENDING;
2340 }
2341#endif
2342
2343#if EV_CHILD_ENABLE
2344 if (ev_is_active (&childev))
2345 {
2346 ev_ref (EV_A); /* child watcher */
2347 ev_signal_stop (EV_A_ &childev);
2348 }
2349#endif
1684 2350
1685 if (ev_is_active (&pipe_w)) 2351 if (ev_is_active (&pipe_w))
1686 { 2352 {
1687 /*ev_ref (EV_A);*/ 2353 /*ev_ref (EV_A);*/
1688 /*ev_io_stop (EV_A_ &pipe_w);*/ 2354 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1710#endif 2376#endif
1711 2377
1712 if (backend_fd >= 0) 2378 if (backend_fd >= 0)
1713 close (backend_fd); 2379 close (backend_fd);
1714 2380
2381#if EV_USE_IOCP
2382 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2383#endif
1715#if EV_USE_PORT 2384#if EV_USE_PORT
1716 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2385 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1717#endif 2386#endif
1718#if EV_USE_KQUEUE 2387#if EV_USE_KQUEUE
1719 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2388 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1746 array_free (periodic, EMPTY); 2415 array_free (periodic, EMPTY);
1747#endif 2416#endif
1748#if EV_FORK_ENABLE 2417#if EV_FORK_ENABLE
1749 array_free (fork, EMPTY); 2418 array_free (fork, EMPTY);
1750#endif 2419#endif
2420#if EV_CLEANUP_ENABLE
2421 array_free (cleanup, EMPTY);
2422#endif
1751 array_free (prepare, EMPTY); 2423 array_free (prepare, EMPTY);
1752 array_free (check, EMPTY); 2424 array_free (check, EMPTY);
1753#if EV_ASYNC_ENABLE 2425#if EV_ASYNC_ENABLE
1754 array_free (async, EMPTY); 2426 array_free (async, EMPTY);
1755#endif 2427#endif
1756 2428
1757 backend = 0; 2429 backend = 0;
2430
2431#if EV_MULTIPLICITY
2432 if (ev_is_default_loop (EV_A))
2433#endif
2434 ev_default_loop_ptr = 0;
2435#if EV_MULTIPLICITY
2436 else
2437 ev_free (EV_A);
2438#endif
1758} 2439}
1759 2440
1760#if EV_USE_INOTIFY 2441#if EV_USE_INOTIFY
1761inline_size void infy_fork (EV_P); 2442inline_size void infy_fork (EV_P);
1762#endif 2443#endif
… …
1777 infy_fork (EV_A); 2458 infy_fork (EV_A);
1778#endif 2459#endif
1779 2460
1780 if (ev_is_active (&pipe_w)) 2461 if (ev_is_active (&pipe_w))
1781 { 2462 {
1782 /* this "locks" the handlers against writing to the pipe */ 2463 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1783 /* while we modify the fd vars */
1784 sig_pending = 1;
1785#if EV_ASYNC_ENABLE
1786 async_pending = 1;
1787#endif
1788 2464
1789 ev_ref (EV_A); 2465 ev_ref (EV_A);
1790 ev_io_stop (EV_A_ &pipe_w); 2466 ev_io_stop (EV_A_ &pipe_w);
1791 2467
1792#if EV_USE_EVENTFD 2468#if EV_USE_EVENTFD
… …
1798 { 2474 {
1799 EV_WIN32_CLOSE_FD (evpipe [0]); 2475 EV_WIN32_CLOSE_FD (evpipe [0]);
1800 EV_WIN32_CLOSE_FD (evpipe [1]); 2476 EV_WIN32_CLOSE_FD (evpipe [1]);
1801 } 2477 }
1802 2478
2479#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1803 evpipe_init (EV_A); 2480 evpipe_init (EV_A);
1804 /* now iterate over everything, in case we missed something */ 2481 /* now iterate over everything, in case we missed something */
1805 pipecb (EV_A_ &pipe_w, EV_READ); 2482 pipecb (EV_A_ &pipe_w, EV_READ);
2483#endif
1806 } 2484 }
1807 2485
1808 postfork = 0; 2486 postfork = 0;
1809} 2487}
1810 2488
1811#if EV_MULTIPLICITY 2489#if EV_MULTIPLICITY
1812 2490
1813struct ev_loop * 2491struct ev_loop * ecb_cold
1814ev_loop_new (unsigned int flags) 2492ev_loop_new (unsigned int flags) EV_THROW
1815{ 2493{
1816 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2494 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1817 2495
1818 memset (EV_A, 0, sizeof (struct ev_loop)); 2496 memset (EV_A, 0, sizeof (struct ev_loop));
1819 loop_init (EV_A_ flags); 2497 loop_init (EV_A_ flags);
1820 2498
1821 if (ev_backend (EV_A)) 2499 if (ev_backend (EV_A))
1822 return EV_A; 2500 return EV_A;
1823 2501
2502 ev_free (EV_A);
1824 return 0; 2503 return 0;
1825} 2504}
1826 2505
1827void
1828ev_loop_destroy (EV_P)
1829{
1830 loop_destroy (EV_A);
1831 ev_free (loop);
1832}
1833
1834void
1835ev_loop_fork (EV_P)
1836{
1837 postfork = 1; /* must be in line with ev_default_fork */
1838}
1839#endif /* multiplicity */ 2506#endif /* multiplicity */
1840 2507
1841#if EV_VERIFY 2508#if EV_VERIFY
1842static void noinline 2509static void noinline ecb_cold
1843verify_watcher (EV_P_ W w) 2510verify_watcher (EV_P_ W w)
1844{ 2511{
1845 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2512 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1846 2513
1847 if (w->pending) 2514 if (w->pending)
1848 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2515 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1849} 2516}
1850 2517
1851static void noinline 2518static void noinline ecb_cold
1852verify_heap (EV_P_ ANHE *heap, int N) 2519verify_heap (EV_P_ ANHE *heap, int N)
1853{ 2520{
1854 int i; 2521 int i;
1855 2522
1856 for (i = HEAP0; i < N + HEAP0; ++i) 2523 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1861 2528
1862 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2529 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1863 } 2530 }
1864} 2531}
1865 2532
1866static void noinline 2533static void noinline ecb_cold
1867array_verify (EV_P_ W *ws, int cnt) 2534array_verify (EV_P_ W *ws, int cnt)
1868{ 2535{
1869 while (cnt--) 2536 while (cnt--)
1870 { 2537 {
1871 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2538 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1872 verify_watcher (EV_A_ ws [cnt]); 2539 verify_watcher (EV_A_ ws [cnt]);
1873 } 2540 }
1874} 2541}
1875#endif 2542#endif
1876 2543
1877#if EV_MINIMAL < 2 2544#if EV_FEATURE_API
1878void 2545void ecb_cold
1879ev_loop_verify (EV_P) 2546ev_verify (EV_P) EV_THROW
1880{ 2547{
1881#if EV_VERIFY 2548#if EV_VERIFY
1882 int i; 2549 int i;
1883 WL w; 2550 WL w;
1884 2551
… …
1918#if EV_FORK_ENABLE 2585#if EV_FORK_ENABLE
1919 assert (forkmax >= forkcnt); 2586 assert (forkmax >= forkcnt);
1920 array_verify (EV_A_ (W *)forks, forkcnt); 2587 array_verify (EV_A_ (W *)forks, forkcnt);
1921#endif 2588#endif
1922 2589
2590#if EV_CLEANUP_ENABLE
2591 assert (cleanupmax >= cleanupcnt);
2592 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2593#endif
2594
1923#if EV_ASYNC_ENABLE 2595#if EV_ASYNC_ENABLE
1924 assert (asyncmax >= asynccnt); 2596 assert (asyncmax >= asynccnt);
1925 array_verify (EV_A_ (W *)asyncs, asynccnt); 2597 array_verify (EV_A_ (W *)asyncs, asynccnt);
1926#endif 2598#endif
1927 2599
2600#if EV_PREPARE_ENABLE
1928 assert (preparemax >= preparecnt); 2601 assert (preparemax >= preparecnt);
1929 array_verify (EV_A_ (W *)prepares, preparecnt); 2602 array_verify (EV_A_ (W *)prepares, preparecnt);
2603#endif
1930 2604
2605#if EV_CHECK_ENABLE
1931 assert (checkmax >= checkcnt); 2606 assert (checkmax >= checkcnt);
1932 array_verify (EV_A_ (W *)checks, checkcnt); 2607 array_verify (EV_A_ (W *)checks, checkcnt);
2608#endif
1933 2609
1934# if 0 2610# if 0
1935#if EV_CHILD_ENABLE 2611#if EV_CHILD_ENABLE
1936 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2612 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1937 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2613 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1938#endif 2614#endif
1939# endif 2615# endif
1940#endif 2616#endif
1941} 2617}
1942#endif 2618#endif
1943 2619
1944#if EV_MULTIPLICITY 2620#if EV_MULTIPLICITY
1945struct ev_loop * 2621struct ev_loop * ecb_cold
1946ev_default_loop_init (unsigned int flags)
1947#else 2622#else
1948int 2623int
2624#endif
1949ev_default_loop (unsigned int flags) 2625ev_default_loop (unsigned int flags) EV_THROW
1950#endif
1951{ 2626{
1952 if (!ev_default_loop_ptr) 2627 if (!ev_default_loop_ptr)
1953 { 2628 {
1954#if EV_MULTIPLICITY 2629#if EV_MULTIPLICITY
1955 EV_P = ev_default_loop_ptr = &default_loop_struct; 2630 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1974 2649
1975 return ev_default_loop_ptr; 2650 return ev_default_loop_ptr;
1976} 2651}
1977 2652
1978void 2653void
1979ev_default_destroy (void) 2654ev_loop_fork (EV_P) EV_THROW
1980{ 2655{
1981#if EV_MULTIPLICITY
1982 EV_P = ev_default_loop_ptr;
1983#endif
1984
1985 ev_default_loop_ptr = 0;
1986
1987#if EV_CHILD_ENABLE
1988 ev_ref (EV_A); /* child watcher */
1989 ev_signal_stop (EV_A_ &childev);
1990#endif
1991
1992 loop_destroy (EV_A);
1993}
1994
1995void
1996ev_default_fork (void)
1997{
1998#if EV_MULTIPLICITY
1999 EV_P = ev_default_loop_ptr;
2000#endif
2001
2002 postfork = 1; /* must be in line with ev_loop_fork */ 2656 postfork = 1; /* must be in line with ev_default_fork */
2003} 2657}
2004 2658
2005/*****************************************************************************/ 2659/*****************************************************************************/
2006 2660
2007void 2661void
… …
2009{ 2663{
2010 EV_CB_INVOKE ((W)w, revents); 2664 EV_CB_INVOKE ((W)w, revents);
2011} 2665}
2012 2666
2013unsigned int 2667unsigned int
2014ev_pending_count (EV_P) 2668ev_pending_count (EV_P) EV_THROW
2015{ 2669{
2016 int pri; 2670 int pri;
2017 unsigned int count = 0; 2671 unsigned int count = 0;
2018 2672
2019 for (pri = NUMPRI; pri--; ) 2673 for (pri = NUMPRI; pri--; )
… …
2029 2683
2030 for (pri = NUMPRI; pri--; ) 2684 for (pri = NUMPRI; pri--; )
2031 while (pendingcnt [pri]) 2685 while (pendingcnt [pri])
2032 { 2686 {
2033 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2687 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2034
2035 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2036 /* ^ this is no longer true, as pending_w could be here */
2037 2688
2038 p->w->pending = 0; 2689 p->w->pending = 0;
2039 EV_CB_INVOKE (p->w, p->events); 2690 EV_CB_INVOKE (p->w, p->events);
2040 EV_FREQUENT_CHECK; 2691 EV_FREQUENT_CHECK;
2041 } 2692 }
… …
2098 EV_FREQUENT_CHECK; 2749 EV_FREQUENT_CHECK;
2099 feed_reverse (EV_A_ (W)w); 2750 feed_reverse (EV_A_ (W)w);
2100 } 2751 }
2101 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2752 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2102 2753
2103 feed_reverse_done (EV_A_ EV_TIMEOUT); 2754 feed_reverse_done (EV_A_ EV_TIMER);
2104 } 2755 }
2105} 2756}
2106 2757
2107#if EV_PERIODIC_ENABLE 2758#if EV_PERIODIC_ENABLE
2759
2760static void noinline
2761periodic_recalc (EV_P_ ev_periodic *w)
2762{
2763 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2764 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2765
2766 /* the above almost always errs on the low side */
2767 while (at <= ev_rt_now)
2768 {
2769 ev_tstamp nat = at + w->interval;
2770
2771 /* when resolution fails us, we use ev_rt_now */
2772 if (expect_false (nat == at))
2773 {
2774 at = ev_rt_now;
2775 break;
2776 }
2777
2778 at = nat;
2779 }
2780
2781 ev_at (w) = at;
2782}
2783
2108/* make periodics pending */ 2784/* make periodics pending */
2109inline_size void 2785inline_size void
2110periodics_reify (EV_P) 2786periodics_reify (EV_P)
2111{ 2787{
2112 EV_FREQUENT_CHECK; 2788 EV_FREQUENT_CHECK;
… …
2131 ANHE_at_cache (periodics [HEAP0]); 2807 ANHE_at_cache (periodics [HEAP0]);
2132 downheap (periodics, periodiccnt, HEAP0); 2808 downheap (periodics, periodiccnt, HEAP0);
2133 } 2809 }
2134 else if (w->interval) 2810 else if (w->interval)
2135 { 2811 {
2136 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2812 periodic_recalc (EV_A_ w);
2137 /* if next trigger time is not sufficiently in the future, put it there */
2138 /* this might happen because of floating point inexactness */
2139 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2140 {
2141 ev_at (w) += w->interval;
2142
2143 /* if interval is unreasonably low we might still have a time in the past */
2144 /* so correct this. this will make the periodic very inexact, but the user */
2145 /* has effectively asked to get triggered more often than possible */
2146 if (ev_at (w) < ev_rt_now)
2147 ev_at (w) = ev_rt_now;
2148 }
2149
2150 ANHE_at_cache (periodics [HEAP0]); 2813 ANHE_at_cache (periodics [HEAP0]);
2151 downheap (periodics, periodiccnt, HEAP0); 2814 downheap (periodics, periodiccnt, HEAP0);
2152 } 2815 }
2153 else 2816 else
2154 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2817 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2161 feed_reverse_done (EV_A_ EV_PERIODIC); 2824 feed_reverse_done (EV_A_ EV_PERIODIC);
2162 } 2825 }
2163} 2826}
2164 2827
2165/* simply recalculate all periodics */ 2828/* simply recalculate all periodics */
2166/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2829/* TODO: maybe ensure that at least one event happens when jumping forward? */
2167static void noinline 2830static void noinline ecb_cold
2168periodics_reschedule (EV_P) 2831periodics_reschedule (EV_P)
2169{ 2832{
2170 int i; 2833 int i;
2171 2834
2172 /* adjust periodics after time jump */ 2835 /* adjust periodics after time jump */
… …
2175 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2838 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2176 2839
2177 if (w->reschedule_cb) 2840 if (w->reschedule_cb)
2178 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2841 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2179 else if (w->interval) 2842 else if (w->interval)
2180 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2843 periodic_recalc (EV_A_ w);
2181 2844
2182 ANHE_at_cache (periodics [i]); 2845 ANHE_at_cache (periodics [i]);
2183 } 2846 }
2184 2847
2185 reheap (periodics, periodiccnt); 2848 reheap (periodics, periodiccnt);
2186} 2849}
2187#endif 2850#endif
2188 2851
2189/* adjust all timers by a given offset */ 2852/* adjust all timers by a given offset */
2190static void noinline 2853static void noinline ecb_cold
2191timers_reschedule (EV_P_ ev_tstamp adjust) 2854timers_reschedule (EV_P_ ev_tstamp adjust)
2192{ 2855{
2193 int i; 2856 int i;
2194 2857
2195 for (i = 0; i < timercnt; ++i) 2858 for (i = 0; i < timercnt; ++i)
… …
2232 * doesn't hurt either as we only do this on time-jumps or 2895 * doesn't hurt either as we only do this on time-jumps or
2233 * in the unlikely event of having been preempted here. 2896 * in the unlikely event of having been preempted here.
2234 */ 2897 */
2235 for (i = 4; --i; ) 2898 for (i = 4; --i; )
2236 { 2899 {
2900 ev_tstamp diff;
2237 rtmn_diff = ev_rt_now - mn_now; 2901 rtmn_diff = ev_rt_now - mn_now;
2238 2902
2903 diff = odiff - rtmn_diff;
2904
2239 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2905 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2240 return; /* all is well */ 2906 return; /* all is well */
2241 2907
2242 ev_rt_now = ev_time (); 2908 ev_rt_now = ev_time ();
2243 mn_now = get_clock (); 2909 mn_now = get_clock ();
2244 now_floor = mn_now; 2910 now_floor = mn_now;
… …
2266 2932
2267 mn_now = ev_rt_now; 2933 mn_now = ev_rt_now;
2268 } 2934 }
2269} 2935}
2270 2936
2271void 2937int
2272ev_loop (EV_P_ int flags) 2938ev_run (EV_P_ int flags)
2273{ 2939{
2274#if EV_MINIMAL < 2 2940#if EV_FEATURE_API
2275 ++loop_depth; 2941 ++loop_depth;
2276#endif 2942#endif
2277 2943
2278 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2944 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2279 2945
2280 loop_done = EVUNLOOP_CANCEL; 2946 loop_done = EVBREAK_CANCEL;
2281 2947
2282 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2948 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2283 2949
2284 do 2950 do
2285 { 2951 {
2286#if EV_VERIFY >= 2 2952#if EV_VERIFY >= 2
2287 ev_loop_verify (EV_A); 2953 ev_verify (EV_A);
2288#endif 2954#endif
2289 2955
2290#ifndef _WIN32 2956#ifndef _WIN32
2291 if (expect_false (curpid)) /* penalise the forking check even more */ 2957 if (expect_false (curpid)) /* penalise the forking check even more */
2292 if (expect_false (getpid () != curpid)) 2958 if (expect_false (getpid () != curpid))
… …
2304 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2970 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2305 EV_INVOKE_PENDING; 2971 EV_INVOKE_PENDING;
2306 } 2972 }
2307#endif 2973#endif
2308 2974
2975#if EV_PREPARE_ENABLE
2309 /* queue prepare watchers (and execute them) */ 2976 /* queue prepare watchers (and execute them) */
2310 if (expect_false (preparecnt)) 2977 if (expect_false (preparecnt))
2311 { 2978 {
2312 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2979 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2313 EV_INVOKE_PENDING; 2980 EV_INVOKE_PENDING;
2314 } 2981 }
2982#endif
2315 2983
2316 if (expect_false (loop_done)) 2984 if (expect_false (loop_done))
2317 break; 2985 break;
2318 2986
2319 /* we might have forked, so reify kernel state if necessary */ 2987 /* we might have forked, so reify kernel state if necessary */
… …
2326 /* calculate blocking time */ 2994 /* calculate blocking time */
2327 { 2995 {
2328 ev_tstamp waittime = 0.; 2996 ev_tstamp waittime = 0.;
2329 ev_tstamp sleeptime = 0.; 2997 ev_tstamp sleeptime = 0.;
2330 2998
2999 /* remember old timestamp for io_blocktime calculation */
3000 ev_tstamp prev_mn_now = mn_now;
3001
3002 /* update time to cancel out callback processing overhead */
3003 time_update (EV_A_ 1e100);
3004
3005 /* from now on, we want a pipe-wake-up */
3006 pipe_write_wanted = 1;
3007
3008 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3009
2331 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3010 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2332 { 3011 {
2333 /* remember old timestamp for io_blocktime calculation */
2334 ev_tstamp prev_mn_now = mn_now;
2335
2336 /* update time to cancel out callback processing overhead */
2337 time_update (EV_A_ 1e100);
2338
2339 waittime = MAX_BLOCKTIME; 3012 waittime = MAX_BLOCKTIME;
2340 3013
2341 if (timercnt) 3014 if (timercnt)
2342 { 3015 {
2343 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3016 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2344 if (waittime > to) waittime = to; 3017 if (waittime > to) waittime = to;
2345 } 3018 }
2346 3019
2347#if EV_PERIODIC_ENABLE 3020#if EV_PERIODIC_ENABLE
2348 if (periodiccnt) 3021 if (periodiccnt)
2349 { 3022 {
2350 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3023 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2351 if (waittime > to) waittime = to; 3024 if (waittime > to) waittime = to;
2352 } 3025 }
2353#endif 3026#endif
2354 3027
2355 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3028 /* don't let timeouts decrease the waittime below timeout_blocktime */
2356 if (expect_false (waittime < timeout_blocktime)) 3029 if (expect_false (waittime < timeout_blocktime))
2357 waittime = timeout_blocktime; 3030 waittime = timeout_blocktime;
3031
3032 /* at this point, we NEED to wait, so we have to ensure */
3033 /* to pass a minimum nonzero value to the backend */
3034 if (expect_false (waittime < backend_mintime))
3035 waittime = backend_mintime;
2358 3036
2359 /* extra check because io_blocktime is commonly 0 */ 3037 /* extra check because io_blocktime is commonly 0 */
2360 if (expect_false (io_blocktime)) 3038 if (expect_false (io_blocktime))
2361 { 3039 {
2362 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3040 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2363 3041
2364 if (sleeptime > waittime - backend_fudge) 3042 if (sleeptime > waittime - backend_mintime)
2365 sleeptime = waittime - backend_fudge; 3043 sleeptime = waittime - backend_mintime;
2366 3044
2367 if (expect_true (sleeptime > 0.)) 3045 if (expect_true (sleeptime > 0.))
2368 { 3046 {
2369 ev_sleep (sleeptime); 3047 ev_sleep (sleeptime);
2370 waittime -= sleeptime; 3048 waittime -= sleeptime;
2371 } 3049 }
2372 } 3050 }
2373 } 3051 }
2374 3052
2375#if EV_MINIMAL < 2 3053#if EV_FEATURE_API
2376 ++loop_count; 3054 ++loop_count;
2377#endif 3055#endif
2378 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3056 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2379 backend_poll (EV_A_ waittime); 3057 backend_poll (EV_A_ waittime);
2380 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3058 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3059
3060 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3061
3062 if (pipe_write_skipped)
3063 {
3064 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3065 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3066 }
3067
2381 3068
2382 /* update ev_rt_now, do magic */ 3069 /* update ev_rt_now, do magic */
2383 time_update (EV_A_ waittime + sleeptime); 3070 time_update (EV_A_ waittime + sleeptime);
2384 } 3071 }
2385 3072
… …
2392#if EV_IDLE_ENABLE 3079#if EV_IDLE_ENABLE
2393 /* queue idle watchers unless other events are pending */ 3080 /* queue idle watchers unless other events are pending */
2394 idle_reify (EV_A); 3081 idle_reify (EV_A);
2395#endif 3082#endif
2396 3083
3084#if EV_CHECK_ENABLE
2397 /* queue check watchers, to be executed first */ 3085 /* queue check watchers, to be executed first */
2398 if (expect_false (checkcnt)) 3086 if (expect_false (checkcnt))
2399 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3087 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3088#endif
2400 3089
2401 EV_INVOKE_PENDING; 3090 EV_INVOKE_PENDING;
2402 } 3091 }
2403 while (expect_true ( 3092 while (expect_true (
2404 activecnt 3093 activecnt
2405 && !loop_done 3094 && !loop_done
2406 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3095 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2407 )); 3096 ));
2408 3097
2409 if (loop_done == EVUNLOOP_ONE) 3098 if (loop_done == EVBREAK_ONE)
2410 loop_done = EVUNLOOP_CANCEL; 3099 loop_done = EVBREAK_CANCEL;
2411 3100
2412#if EV_MINIMAL < 2 3101#if EV_FEATURE_API
2413 --loop_depth; 3102 --loop_depth;
2414#endif 3103#endif
3104
3105 return activecnt;
2415} 3106}
2416 3107
2417void 3108void
2418ev_unloop (EV_P_ int how) 3109ev_break (EV_P_ int how) EV_THROW
2419{ 3110{
2420 loop_done = how; 3111 loop_done = how;
2421} 3112}
2422 3113
2423void 3114void
2424ev_ref (EV_P) 3115ev_ref (EV_P) EV_THROW
2425{ 3116{
2426 ++activecnt; 3117 ++activecnt;
2427} 3118}
2428 3119
2429void 3120void
2430ev_unref (EV_P) 3121ev_unref (EV_P) EV_THROW
2431{ 3122{
2432 --activecnt; 3123 --activecnt;
2433} 3124}
2434 3125
2435void 3126void
2436ev_now_update (EV_P) 3127ev_now_update (EV_P) EV_THROW
2437{ 3128{
2438 time_update (EV_A_ 1e100); 3129 time_update (EV_A_ 1e100);
2439} 3130}
2440 3131
2441void 3132void
2442ev_suspend (EV_P) 3133ev_suspend (EV_P) EV_THROW
2443{ 3134{
2444 ev_now_update (EV_A); 3135 ev_now_update (EV_A);
2445} 3136}
2446 3137
2447void 3138void
2448ev_resume (EV_P) 3139ev_resume (EV_P) EV_THROW
2449{ 3140{
2450 ev_tstamp mn_prev = mn_now; 3141 ev_tstamp mn_prev = mn_now;
2451 3142
2452 ev_now_update (EV_A); 3143 ev_now_update (EV_A);
2453 timers_reschedule (EV_A_ mn_now - mn_prev); 3144 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2492 w->pending = 0; 3183 w->pending = 0;
2493 } 3184 }
2494} 3185}
2495 3186
2496int 3187int
2497ev_clear_pending (EV_P_ void *w) 3188ev_clear_pending (EV_P_ void *w) EV_THROW
2498{ 3189{
2499 W w_ = (W)w; 3190 W w_ = (W)w;
2500 int pending = w_->pending; 3191 int pending = w_->pending;
2501 3192
2502 if (expect_true (pending)) 3193 if (expect_true (pending))
… …
2535} 3226}
2536 3227
2537/*****************************************************************************/ 3228/*****************************************************************************/
2538 3229
2539void noinline 3230void noinline
2540ev_io_start (EV_P_ ev_io *w) 3231ev_io_start (EV_P_ ev_io *w) EV_THROW
2541{ 3232{
2542 int fd = w->fd; 3233 int fd = w->fd;
2543 3234
2544 if (expect_false (ev_is_active (w))) 3235 if (expect_false (ev_is_active (w)))
2545 return; 3236 return;
… …
2558 3249
2559 EV_FREQUENT_CHECK; 3250 EV_FREQUENT_CHECK;
2560} 3251}
2561 3252
2562void noinline 3253void noinline
2563ev_io_stop (EV_P_ ev_io *w) 3254ev_io_stop (EV_P_ ev_io *w) EV_THROW
2564{ 3255{
2565 clear_pending (EV_A_ (W)w); 3256 clear_pending (EV_A_ (W)w);
2566 if (expect_false (!ev_is_active (w))) 3257 if (expect_false (!ev_is_active (w)))
2567 return; 3258 return;
2568 3259
… …
2571 EV_FREQUENT_CHECK; 3262 EV_FREQUENT_CHECK;
2572 3263
2573 wlist_del (&anfds[w->fd].head, (WL)w); 3264 wlist_del (&anfds[w->fd].head, (WL)w);
2574 ev_stop (EV_A_ (W)w); 3265 ev_stop (EV_A_ (W)w);
2575 3266
2576 fd_change (EV_A_ w->fd, 1); 3267 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2577 3268
2578 EV_FREQUENT_CHECK; 3269 EV_FREQUENT_CHECK;
2579} 3270}
2580 3271
2581void noinline 3272void noinline
2582ev_timer_start (EV_P_ ev_timer *w) 3273ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2583{ 3274{
2584 if (expect_false (ev_is_active (w))) 3275 if (expect_false (ev_is_active (w)))
2585 return; 3276 return;
2586 3277
2587 ev_at (w) += mn_now; 3278 ev_at (w) += mn_now;
… …
2601 3292
2602 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3293 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2603} 3294}
2604 3295
2605void noinline 3296void noinline
2606ev_timer_stop (EV_P_ ev_timer *w) 3297ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2607{ 3298{
2608 clear_pending (EV_A_ (W)w); 3299 clear_pending (EV_A_ (W)w);
2609 if (expect_false (!ev_is_active (w))) 3300 if (expect_false (!ev_is_active (w)))
2610 return; 3301 return;
2611 3302
… …
2631 3322
2632 EV_FREQUENT_CHECK; 3323 EV_FREQUENT_CHECK;
2633} 3324}
2634 3325
2635void noinline 3326void noinline
2636ev_timer_again (EV_P_ ev_timer *w) 3327ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2637{ 3328{
2638 EV_FREQUENT_CHECK; 3329 EV_FREQUENT_CHECK;
3330
3331 clear_pending (EV_A_ (W)w);
2639 3332
2640 if (ev_is_active (w)) 3333 if (ev_is_active (w))
2641 { 3334 {
2642 if (w->repeat) 3335 if (w->repeat)
2643 { 3336 {
… …
2656 3349
2657 EV_FREQUENT_CHECK; 3350 EV_FREQUENT_CHECK;
2658} 3351}
2659 3352
2660ev_tstamp 3353ev_tstamp
2661ev_timer_remaining (EV_P_ ev_timer *w) 3354ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2662{ 3355{
2663 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3356 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2664} 3357}
2665 3358
2666#if EV_PERIODIC_ENABLE 3359#if EV_PERIODIC_ENABLE
2667void noinline 3360void noinline
2668ev_periodic_start (EV_P_ ev_periodic *w) 3361ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2669{ 3362{
2670 if (expect_false (ev_is_active (w))) 3363 if (expect_false (ev_is_active (w)))
2671 return; 3364 return;
2672 3365
2673 if (w->reschedule_cb) 3366 if (w->reschedule_cb)
2674 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3367 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2675 else if (w->interval) 3368 else if (w->interval)
2676 { 3369 {
2677 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3370 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2678 /* this formula differs from the one in periodic_reify because we do not always round up */ 3371 periodic_recalc (EV_A_ w);
2679 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2680 } 3372 }
2681 else 3373 else
2682 ev_at (w) = w->offset; 3374 ev_at (w) = w->offset;
2683 3375
2684 EV_FREQUENT_CHECK; 3376 EV_FREQUENT_CHECK;
… …
2694 3386
2695 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3387 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2696} 3388}
2697 3389
2698void noinline 3390void noinline
2699ev_periodic_stop (EV_P_ ev_periodic *w) 3391ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2700{ 3392{
2701 clear_pending (EV_A_ (W)w); 3393 clear_pending (EV_A_ (W)w);
2702 if (expect_false (!ev_is_active (w))) 3394 if (expect_false (!ev_is_active (w)))
2703 return; 3395 return;
2704 3396
… …
2722 3414
2723 EV_FREQUENT_CHECK; 3415 EV_FREQUENT_CHECK;
2724} 3416}
2725 3417
2726void noinline 3418void noinline
2727ev_periodic_again (EV_P_ ev_periodic *w) 3419ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2728{ 3420{
2729 /* TODO: use adjustheap and recalculation */ 3421 /* TODO: use adjustheap and recalculation */
2730 ev_periodic_stop (EV_A_ w); 3422 ev_periodic_stop (EV_A_ w);
2731 ev_periodic_start (EV_A_ w); 3423 ev_periodic_start (EV_A_ w);
2732} 3424}
… …
2737#endif 3429#endif
2738 3430
2739#if EV_SIGNAL_ENABLE 3431#if EV_SIGNAL_ENABLE
2740 3432
2741void noinline 3433void noinline
2742ev_signal_start (EV_P_ ev_signal *w) 3434ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2743{ 3435{
2744 if (expect_false (ev_is_active (w))) 3436 if (expect_false (ev_is_active (w)))
2745 return; 3437 return;
2746 3438
2747 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3439 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2805 sa.sa_handler = ev_sighandler; 3497 sa.sa_handler = ev_sighandler;
2806 sigfillset (&sa.sa_mask); 3498 sigfillset (&sa.sa_mask);
2807 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3499 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2808 sigaction (w->signum, &sa, 0); 3500 sigaction (w->signum, &sa, 0);
2809 3501
3502 if (origflags & EVFLAG_NOSIGMASK)
3503 {
2810 sigemptyset (&sa.sa_mask); 3504 sigemptyset (&sa.sa_mask);
2811 sigaddset (&sa.sa_mask, w->signum); 3505 sigaddset (&sa.sa_mask, w->signum);
2812 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3506 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3507 }
2813#endif 3508#endif
2814 } 3509 }
2815 3510
2816 EV_FREQUENT_CHECK; 3511 EV_FREQUENT_CHECK;
2817} 3512}
2818 3513
2819void noinline 3514void noinline
2820ev_signal_stop (EV_P_ ev_signal *w) 3515ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2821{ 3516{
2822 clear_pending (EV_A_ (W)w); 3517 clear_pending (EV_A_ (W)w);
2823 if (expect_false (!ev_is_active (w))) 3518 if (expect_false (!ev_is_active (w)))
2824 return; 3519 return;
2825 3520
… …
2856#endif 3551#endif
2857 3552
2858#if EV_CHILD_ENABLE 3553#if EV_CHILD_ENABLE
2859 3554
2860void 3555void
2861ev_child_start (EV_P_ ev_child *w) 3556ev_child_start (EV_P_ ev_child *w) EV_THROW
2862{ 3557{
2863#if EV_MULTIPLICITY 3558#if EV_MULTIPLICITY
2864 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3559 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2865#endif 3560#endif
2866 if (expect_false (ev_is_active (w))) 3561 if (expect_false (ev_is_active (w)))
2867 return; 3562 return;
2868 3563
2869 EV_FREQUENT_CHECK; 3564 EV_FREQUENT_CHECK;
2870 3565
2871 ev_start (EV_A_ (W)w, 1); 3566 ev_start (EV_A_ (W)w, 1);
2872 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3567 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2873 3568
2874 EV_FREQUENT_CHECK; 3569 EV_FREQUENT_CHECK;
2875} 3570}
2876 3571
2877void 3572void
2878ev_child_stop (EV_P_ ev_child *w) 3573ev_child_stop (EV_P_ ev_child *w) EV_THROW
2879{ 3574{
2880 clear_pending (EV_A_ (W)w); 3575 clear_pending (EV_A_ (W)w);
2881 if (expect_false (!ev_is_active (w))) 3576 if (expect_false (!ev_is_active (w)))
2882 return; 3577 return;
2883 3578
2884 EV_FREQUENT_CHECK; 3579 EV_FREQUENT_CHECK;
2885 3580
2886 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3581 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2887 ev_stop (EV_A_ (W)w); 3582 ev_stop (EV_A_ (W)w);
2888 3583
2889 EV_FREQUENT_CHECK; 3584 EV_FREQUENT_CHECK;
2890} 3585}
2891 3586
… …
2958 if (!pend || pend == path) 3653 if (!pend || pend == path)
2959 break; 3654 break;
2960 3655
2961 *pend = 0; 3656 *pend = 0;
2962 w->wd = inotify_add_watch (fs_fd, path, mask); 3657 w->wd = inotify_add_watch (fs_fd, path, mask);
2963 } 3658 }
2964 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3659 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2965 } 3660 }
2966 } 3661 }
2967 3662
2968 if (w->wd >= 0) 3663 if (w->wd >= 0)
2969 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3664 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2970 3665
2971 /* now re-arm timer, if required */ 3666 /* now re-arm timer, if required */
2972 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3667 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2973 ev_timer_again (EV_A_ &w->timer); 3668 ev_timer_again (EV_A_ &w->timer);
2974 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3669 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2982 3677
2983 if (wd < 0) 3678 if (wd < 0)
2984 return; 3679 return;
2985 3680
2986 w->wd = -2; 3681 w->wd = -2;
2987 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3682 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2988 wlist_del (&fs_hash [slot].head, (WL)w); 3683 wlist_del (&fs_hash [slot].head, (WL)w);
2989 3684
2990 /* remove this watcher, if others are watching it, they will rearm */ 3685 /* remove this watcher, if others are watching it, they will rearm */
2991 inotify_rm_watch (fs_fd, wd); 3686 inotify_rm_watch (fs_fd, wd);
2992} 3687}
… …
2994static void noinline 3689static void noinline
2995infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3690infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2996{ 3691{
2997 if (slot < 0) 3692 if (slot < 0)
2998 /* overflow, need to check for all hash slots */ 3693 /* overflow, need to check for all hash slots */
2999 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3694 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3000 infy_wd (EV_A_ slot, wd, ev); 3695 infy_wd (EV_A_ slot, wd, ev);
3001 else 3696 else
3002 { 3697 {
3003 WL w_; 3698 WL w_;
3004 3699
3005 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3700 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
3006 { 3701 {
3007 ev_stat *w = (ev_stat *)w_; 3702 ev_stat *w = (ev_stat *)w_;
3008 w_ = w_->next; /* lets us remove this watcher and all before it */ 3703 w_ = w_->next; /* lets us remove this watcher and all before it */
3009 3704
3010 if (w->wd == wd || wd == -1) 3705 if (w->wd == wd || wd == -1)
3011 { 3706 {
3012 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3707 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
3013 { 3708 {
3014 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3709 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
3015 w->wd = -1; 3710 w->wd = -1;
3016 infy_add (EV_A_ w); /* re-add, no matter what */ 3711 infy_add (EV_A_ w); /* re-add, no matter what */
3017 } 3712 }
3018 3713
3019 stat_timer_cb (EV_A_ &w->timer, 0); 3714 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3035 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3730 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3036 ofs += sizeof (struct inotify_event) + ev->len; 3731 ofs += sizeof (struct inotify_event) + ev->len;
3037 } 3732 }
3038} 3733}
3039 3734
3040inline_size unsigned int
3041ev_linux_version (void)
3042{
3043 struct utsname buf;
3044 unsigned int v;
3045 int i;
3046 char *p = buf.release;
3047
3048 if (uname (&buf))
3049 return 0;
3050
3051 for (i = 3+1; --i; )
3052 {
3053 unsigned int c = 0;
3054
3055 for (;;)
3056 {
3057 if (*p >= '0' && *p <= '9')
3058 c = c * 10 + *p++ - '0';
3059 else
3060 {
3061 p += *p == '.';
3062 break;
3063 }
3064 }
3065
3066 v = (v << 8) | c;
3067 }
3068
3069 return v;
3070}
3071
3072inline_size void 3735inline_size void ecb_cold
3073ev_check_2625 (EV_P) 3736ev_check_2625 (EV_P)
3074{ 3737{
3075 /* kernels < 2.6.25 are borked 3738 /* kernels < 2.6.25 are borked
3076 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3739 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3077 */ 3740 */
… …
3082} 3745}
3083 3746
3084inline_size int 3747inline_size int
3085infy_newfd (void) 3748infy_newfd (void)
3086{ 3749{
3087#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3750#if defined IN_CLOEXEC && defined IN_NONBLOCK
3088 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3751 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3089 if (fd >= 0) 3752 if (fd >= 0)
3090 return fd; 3753 return fd;
3091#endif 3754#endif
3092 return inotify_init (); 3755 return inotify_init ();
… …
3133 ev_io_set (&fs_w, fs_fd, EV_READ); 3796 ev_io_set (&fs_w, fs_fd, EV_READ);
3134 ev_io_start (EV_A_ &fs_w); 3797 ev_io_start (EV_A_ &fs_w);
3135 ev_unref (EV_A); 3798 ev_unref (EV_A);
3136 } 3799 }
3137 3800
3138 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3801 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3139 { 3802 {
3140 WL w_ = fs_hash [slot].head; 3803 WL w_ = fs_hash [slot].head;
3141 fs_hash [slot].head = 0; 3804 fs_hash [slot].head = 0;
3142 3805
3143 while (w_) 3806 while (w_)
… …
3167#else 3830#else
3168# define EV_LSTAT(p,b) lstat (p, b) 3831# define EV_LSTAT(p,b) lstat (p, b)
3169#endif 3832#endif
3170 3833
3171void 3834void
3172ev_stat_stat (EV_P_ ev_stat *w) 3835ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3173{ 3836{
3174 if (lstat (w->path, &w->attr) < 0) 3837 if (lstat (w->path, &w->attr) < 0)
3175 w->attr.st_nlink = 0; 3838 w->attr.st_nlink = 0;
3176 else if (!w->attr.st_nlink) 3839 else if (!w->attr.st_nlink)
3177 w->attr.st_nlink = 1; 3840 w->attr.st_nlink = 1;
… …
3216 ev_feed_event (EV_A_ w, EV_STAT); 3879 ev_feed_event (EV_A_ w, EV_STAT);
3217 } 3880 }
3218} 3881}
3219 3882
3220void 3883void
3221ev_stat_start (EV_P_ ev_stat *w) 3884ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3222{ 3885{
3223 if (expect_false (ev_is_active (w))) 3886 if (expect_false (ev_is_active (w)))
3224 return; 3887 return;
3225 3888
3226 ev_stat_stat (EV_A_ w); 3889 ev_stat_stat (EV_A_ w);
… …
3247 3910
3248 EV_FREQUENT_CHECK; 3911 EV_FREQUENT_CHECK;
3249} 3912}
3250 3913
3251void 3914void
3252ev_stat_stop (EV_P_ ev_stat *w) 3915ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3253{ 3916{
3254 clear_pending (EV_A_ (W)w); 3917 clear_pending (EV_A_ (W)w);
3255 if (expect_false (!ev_is_active (w))) 3918 if (expect_false (!ev_is_active (w)))
3256 return; 3919 return;
3257 3920
… …
3273} 3936}
3274#endif 3937#endif
3275 3938
3276#if EV_IDLE_ENABLE 3939#if EV_IDLE_ENABLE
3277void 3940void
3278ev_idle_start (EV_P_ ev_idle *w) 3941ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3279{ 3942{
3280 if (expect_false (ev_is_active (w))) 3943 if (expect_false (ev_is_active (w)))
3281 return; 3944 return;
3282 3945
3283 pri_adjust (EV_A_ (W)w); 3946 pri_adjust (EV_A_ (W)w);
… …
3296 3959
3297 EV_FREQUENT_CHECK; 3960 EV_FREQUENT_CHECK;
3298} 3961}
3299 3962
3300void 3963void
3301ev_idle_stop (EV_P_ ev_idle *w) 3964ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3302{ 3965{
3303 clear_pending (EV_A_ (W)w); 3966 clear_pending (EV_A_ (W)w);
3304 if (expect_false (!ev_is_active (w))) 3967 if (expect_false (!ev_is_active (w)))
3305 return; 3968 return;
3306 3969
… …
3318 3981
3319 EV_FREQUENT_CHECK; 3982 EV_FREQUENT_CHECK;
3320} 3983}
3321#endif 3984#endif
3322 3985
3986#if EV_PREPARE_ENABLE
3323void 3987void
3324ev_prepare_start (EV_P_ ev_prepare *w) 3988ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3325{ 3989{
3326 if (expect_false (ev_is_active (w))) 3990 if (expect_false (ev_is_active (w)))
3327 return; 3991 return;
3328 3992
3329 EV_FREQUENT_CHECK; 3993 EV_FREQUENT_CHECK;
… …
3334 3998
3335 EV_FREQUENT_CHECK; 3999 EV_FREQUENT_CHECK;
3336} 4000}
3337 4001
3338void 4002void
3339ev_prepare_stop (EV_P_ ev_prepare *w) 4003ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3340{ 4004{
3341 clear_pending (EV_A_ (W)w); 4005 clear_pending (EV_A_ (W)w);
3342 if (expect_false (!ev_is_active (w))) 4006 if (expect_false (!ev_is_active (w)))
3343 return; 4007 return;
3344 4008
… …
3353 4017
3354 ev_stop (EV_A_ (W)w); 4018 ev_stop (EV_A_ (W)w);
3355 4019
3356 EV_FREQUENT_CHECK; 4020 EV_FREQUENT_CHECK;
3357} 4021}
4022#endif
3358 4023
4024#if EV_CHECK_ENABLE
3359void 4025void
3360ev_check_start (EV_P_ ev_check *w) 4026ev_check_start (EV_P_ ev_check *w) EV_THROW
3361{ 4027{
3362 if (expect_false (ev_is_active (w))) 4028 if (expect_false (ev_is_active (w)))
3363 return; 4029 return;
3364 4030
3365 EV_FREQUENT_CHECK; 4031 EV_FREQUENT_CHECK;
… …
3370 4036
3371 EV_FREQUENT_CHECK; 4037 EV_FREQUENT_CHECK;
3372} 4038}
3373 4039
3374void 4040void
3375ev_check_stop (EV_P_ ev_check *w) 4041ev_check_stop (EV_P_ ev_check *w) EV_THROW
3376{ 4042{
3377 clear_pending (EV_A_ (W)w); 4043 clear_pending (EV_A_ (W)w);
3378 if (expect_false (!ev_is_active (w))) 4044 if (expect_false (!ev_is_active (w)))
3379 return; 4045 return;
3380 4046
… …
3389 4055
3390 ev_stop (EV_A_ (W)w); 4056 ev_stop (EV_A_ (W)w);
3391 4057
3392 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
3393} 4059}
4060#endif
3394 4061
3395#if EV_EMBED_ENABLE 4062#if EV_EMBED_ENABLE
3396void noinline 4063void noinline
3397ev_embed_sweep (EV_P_ ev_embed *w) 4064ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3398{ 4065{
3399 ev_loop (w->other, EVLOOP_NONBLOCK); 4066 ev_run (w->other, EVRUN_NOWAIT);
3400} 4067}
3401 4068
3402static void 4069static void
3403embed_io_cb (EV_P_ ev_io *io, int revents) 4070embed_io_cb (EV_P_ ev_io *io, int revents)
3404{ 4071{
3405 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4072 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3406 4073
3407 if (ev_cb (w)) 4074 if (ev_cb (w))
3408 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4075 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3409 else 4076 else
3410 ev_loop (w->other, EVLOOP_NONBLOCK); 4077 ev_run (w->other, EVRUN_NOWAIT);
3411} 4078}
3412 4079
3413static void 4080static void
3414embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4081embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3415{ 4082{
… …
3419 EV_P = w->other; 4086 EV_P = w->other;
3420 4087
3421 while (fdchangecnt) 4088 while (fdchangecnt)
3422 { 4089 {
3423 fd_reify (EV_A); 4090 fd_reify (EV_A);
3424 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4091 ev_run (EV_A_ EVRUN_NOWAIT);
3425 } 4092 }
3426 } 4093 }
3427} 4094}
3428 4095
3429static void 4096static void
… …
3435 4102
3436 { 4103 {
3437 EV_P = w->other; 4104 EV_P = w->other;
3438 4105
3439 ev_loop_fork (EV_A); 4106 ev_loop_fork (EV_A);
3440 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4107 ev_run (EV_A_ EVRUN_NOWAIT);
3441 } 4108 }
3442 4109
3443 ev_embed_start (EV_A_ w); 4110 ev_embed_start (EV_A_ w);
3444} 4111}
3445 4112
… …
3450 ev_idle_stop (EV_A_ idle); 4117 ev_idle_stop (EV_A_ idle);
3451} 4118}
3452#endif 4119#endif
3453 4120
3454void 4121void
3455ev_embed_start (EV_P_ ev_embed *w) 4122ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3456{ 4123{
3457 if (expect_false (ev_is_active (w))) 4124 if (expect_false (ev_is_active (w)))
3458 return; 4125 return;
3459 4126
3460 { 4127 {
… …
3481 4148
3482 EV_FREQUENT_CHECK; 4149 EV_FREQUENT_CHECK;
3483} 4150}
3484 4151
3485void 4152void
3486ev_embed_stop (EV_P_ ev_embed *w) 4153ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3487{ 4154{
3488 clear_pending (EV_A_ (W)w); 4155 clear_pending (EV_A_ (W)w);
3489 if (expect_false (!ev_is_active (w))) 4156 if (expect_false (!ev_is_active (w)))
3490 return; 4157 return;
3491 4158
… …
3501} 4168}
3502#endif 4169#endif
3503 4170
3504#if EV_FORK_ENABLE 4171#if EV_FORK_ENABLE
3505void 4172void
3506ev_fork_start (EV_P_ ev_fork *w) 4173ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3507{ 4174{
3508 if (expect_false (ev_is_active (w))) 4175 if (expect_false (ev_is_active (w)))
3509 return; 4176 return;
3510 4177
3511 EV_FREQUENT_CHECK; 4178 EV_FREQUENT_CHECK;
… …
3516 4183
3517 EV_FREQUENT_CHECK; 4184 EV_FREQUENT_CHECK;
3518} 4185}
3519 4186
3520void 4187void
3521ev_fork_stop (EV_P_ ev_fork *w) 4188ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3522{ 4189{
3523 clear_pending (EV_A_ (W)w); 4190 clear_pending (EV_A_ (W)w);
3524 if (expect_false (!ev_is_active (w))) 4191 if (expect_false (!ev_is_active (w)))
3525 return; 4192 return;
3526 4193
… …
3537 4204
3538 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
3539} 4206}
3540#endif 4207#endif
3541 4208
4209#if EV_CLEANUP_ENABLE
4210void
4211ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4212{
4213 if (expect_false (ev_is_active (w)))
4214 return;
4215
4216 EV_FREQUENT_CHECK;
4217
4218 ev_start (EV_A_ (W)w, ++cleanupcnt);
4219 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4220 cleanups [cleanupcnt - 1] = w;
4221
4222 /* cleanup watchers should never keep a refcount on the loop */
4223 ev_unref (EV_A);
4224 EV_FREQUENT_CHECK;
4225}
4226
4227void
4228ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4229{
4230 clear_pending (EV_A_ (W)w);
4231 if (expect_false (!ev_is_active (w)))
4232 return;
4233
4234 EV_FREQUENT_CHECK;
4235 ev_ref (EV_A);
4236
4237 {
4238 int active = ev_active (w);
4239
4240 cleanups [active - 1] = cleanups [--cleanupcnt];
4241 ev_active (cleanups [active - 1]) = active;
4242 }
4243
4244 ev_stop (EV_A_ (W)w);
4245
4246 EV_FREQUENT_CHECK;
4247}
4248#endif
4249
3542#if EV_ASYNC_ENABLE 4250#if EV_ASYNC_ENABLE
3543void 4251void
3544ev_async_start (EV_P_ ev_async *w) 4252ev_async_start (EV_P_ ev_async *w) EV_THROW
3545{ 4253{
3546 if (expect_false (ev_is_active (w))) 4254 if (expect_false (ev_is_active (w)))
3547 return; 4255 return;
4256
4257 w->sent = 0;
3548 4258
3549 evpipe_init (EV_A); 4259 evpipe_init (EV_A);
3550 4260
3551 EV_FREQUENT_CHECK; 4261 EV_FREQUENT_CHECK;
3552 4262
… …
3556 4266
3557 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3558} 4268}
3559 4269
3560void 4270void
3561ev_async_stop (EV_P_ ev_async *w) 4271ev_async_stop (EV_P_ ev_async *w) EV_THROW
3562{ 4272{
3563 clear_pending (EV_A_ (W)w); 4273 clear_pending (EV_A_ (W)w);
3564 if (expect_false (!ev_is_active (w))) 4274 if (expect_false (!ev_is_active (w)))
3565 return; 4275 return;
3566 4276
… …
3577 4287
3578 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3579} 4289}
3580 4290
3581void 4291void
3582ev_async_send (EV_P_ ev_async *w) 4292ev_async_send (EV_P_ ev_async *w) EV_THROW
3583{ 4293{
3584 w->sent = 1; 4294 w->sent = 1;
3585 evpipe_write (EV_A_ &async_pending); 4295 evpipe_write (EV_A_ &async_pending);
3586} 4296}
3587#endif 4297#endif
… …
3624 4334
3625 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4335 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3626} 4336}
3627 4337
3628void 4338void
3629ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4339ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3630{ 4340{
3631 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4341 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3632 4342
3633 if (expect_false (!once)) 4343 if (expect_false (!once))
3634 { 4344 {
3635 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4345 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3636 return; 4346 return;
3637 } 4347 }
3638 4348
3639 once->cb = cb; 4349 once->cb = cb;
3640 once->arg = arg; 4350 once->arg = arg;
… …
3655} 4365}
3656 4366
3657/*****************************************************************************/ 4367/*****************************************************************************/
3658 4368
3659#if EV_WALK_ENABLE 4369#if EV_WALK_ENABLE
3660void 4370void ecb_cold
3661ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4371ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3662{ 4372{
3663 int i, j; 4373 int i, j;
3664 ev_watcher_list *wl, *wn; 4374 ev_watcher_list *wl, *wn;
3665 4375
3666 if (types & (EV_IO | EV_EMBED)) 4376 if (types & (EV_IO | EV_EMBED))
… …
3709 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4419 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3710#endif 4420#endif
3711 4421
3712#if EV_IDLE_ENABLE 4422#if EV_IDLE_ENABLE
3713 if (types & EV_IDLE) 4423 if (types & EV_IDLE)
3714 for (j = NUMPRI; i--; ) 4424 for (j = NUMPRI; j--; )
3715 for (i = idlecnt [j]; i--; ) 4425 for (i = idlecnt [j]; i--; )
3716 cb (EV_A_ EV_IDLE, idles [j][i]); 4426 cb (EV_A_ EV_IDLE, idles [j][i]);
3717#endif 4427#endif
3718 4428
3719#if EV_FORK_ENABLE 4429#if EV_FORK_ENABLE
… …
3727 if (types & EV_ASYNC) 4437 if (types & EV_ASYNC)
3728 for (i = asynccnt; i--; ) 4438 for (i = asynccnt; i--; )
3729 cb (EV_A_ EV_ASYNC, asyncs [i]); 4439 cb (EV_A_ EV_ASYNC, asyncs [i]);
3730#endif 4440#endif
3731 4441
4442#if EV_PREPARE_ENABLE
3732 if (types & EV_PREPARE) 4443 if (types & EV_PREPARE)
3733 for (i = preparecnt; i--; ) 4444 for (i = preparecnt; i--; )
3734#if EV_EMBED_ENABLE 4445# if EV_EMBED_ENABLE
3735 if (ev_cb (prepares [i]) != embed_prepare_cb) 4446 if (ev_cb (prepares [i]) != embed_prepare_cb)
3736#endif 4447# endif
3737 cb (EV_A_ EV_PREPARE, prepares [i]); 4448 cb (EV_A_ EV_PREPARE, prepares [i]);
4449#endif
3738 4450
4451#if EV_CHECK_ENABLE
3739 if (types & EV_CHECK) 4452 if (types & EV_CHECK)
3740 for (i = checkcnt; i--; ) 4453 for (i = checkcnt; i--; )
3741 cb (EV_A_ EV_CHECK, checks [i]); 4454 cb (EV_A_ EV_CHECK, checks [i]);
4455#endif
3742 4456
4457#if EV_SIGNAL_ENABLE
3743 if (types & EV_SIGNAL) 4458 if (types & EV_SIGNAL)
3744 for (i = 0; i < EV_NSIG - 1; ++i) 4459 for (i = 0; i < EV_NSIG - 1; ++i)
3745 for (wl = signals [i].head; wl; ) 4460 for (wl = signals [i].head; wl; )
3746 { 4461 {
3747 wn = wl->next; 4462 wn = wl->next;
3748 cb (EV_A_ EV_SIGNAL, wl); 4463 cb (EV_A_ EV_SIGNAL, wl);
3749 wl = wn; 4464 wl = wn;
3750 } 4465 }
4466#endif
3751 4467
4468#if EV_CHILD_ENABLE
3752 if (types & EV_CHILD) 4469 if (types & EV_CHILD)
3753 for (i = EV_PID_HASHSIZE; i--; ) 4470 for (i = (EV_PID_HASHSIZE); i--; )
3754 for (wl = childs [i]; wl; ) 4471 for (wl = childs [i]; wl; )
3755 { 4472 {
3756 wn = wl->next; 4473 wn = wl->next;
3757 cb (EV_A_ EV_CHILD, wl); 4474 cb (EV_A_ EV_CHILD, wl);
3758 wl = wn; 4475 wl = wn;
3759 } 4476 }
4477#endif
3760/* EV_STAT 0x00001000 /* stat data changed */ 4478/* EV_STAT 0x00001000 /* stat data changed */
3761/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4479/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3762} 4480}
3763#endif 4481#endif
3764 4482
3765#if EV_MULTIPLICITY 4483#if EV_MULTIPLICITY
3766 #include "ev_wrap.h" 4484 #include "ev_wrap.h"
3767#endif 4485#endif
3768 4486
3769#ifdef __cplusplus
3770}
3771#endif
3772

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