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Comparing libev/ev.c (file contents):
Revision 1.337 by root, Wed Mar 10 09:18:24 2010 UTC vs.
Revision 1.428 by root, Tue May 8 15:44:09 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
171 181
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# include "ev.h" 185# include "ev.h"
186#endif
187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
176#endif 197#endif
177 198
178#ifndef _WIN32 199#ifndef _WIN32
179# include <sys/time.h> 200# include <sys/time.h>
180# include <sys/wait.h> 201# include <sys/wait.h>
181# include <unistd.h> 202# include <unistd.h>
182#else 203#else
183# include <io.h> 204# include <io.h>
184# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
185# include <windows.h> 206# include <windows.h>
207# include <winsock2.h>
186# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
188# endif 210# endif
189# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
190#endif 212#endif
191 213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221
192/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
193 223
194/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 225#if defined EV_NSIG
196/* use what's provided */ 226/* use what's provided */
197#elif defined (NSIG) 227#elif defined NSIG
198# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
199#elif defined(_NSIG) 229#elif defined _NSIG
200# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX) 231#elif defined SIGMAX
202# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX) 233#elif defined SIG_MAX
204# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
206# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG) 237#elif defined MAXSIG
208# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 239#elif defined MAX_SIG
210# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
212# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 243#elif defined _sys_nsig
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 245#else
216# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
218/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
219# define EV_NSIG 65 249# define EV_NSIG 65
220#endif 250#endif
221 251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
254#endif
255
222#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
223# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
224# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
225# else 259# else
226# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
227# endif 261# endif
228#endif 262#endif
229 263
230#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
231# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
232# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
233# else 267# else
234# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
235# endif 269# endif
236#endif 270#endif
237 271
… …
239# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
240#endif 274#endif
241 275
242#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
243# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
244# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
245# else 279# else
246# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
247# endif 281# endif
248#endif 282#endif
249 283
250#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
251# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
252#endif 286#endif
253 287
254#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
255# ifdef _WIN32 289# ifdef _WIN32
256# define EV_USE_POLL 0 290# define EV_USE_POLL 0
257# else 291# else
258# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
259# endif 293# endif
260#endif 294#endif
261 295
262#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
263# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
264# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
265# else 299# else
266# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
267# endif 301# endif
268#endif 302#endif
269 303
… …
275# define EV_USE_PORT 0 309# define EV_USE_PORT 0
276#endif 310#endif
277 311
278#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
279# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
280# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
281# else 315# else
282# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
283# endif 317# endif
284#endif 318#endif
285 319
286#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
287# if EV_MINIMAL 321# 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 322#endif
293 323
294#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
295# if EV_MINIMAL 325# 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 326#endif
301 327
302#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
304# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
305# else 331# else
306# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
307# endif 333# endif
308#endif 334#endif
309 335
310#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
311# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
312# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
313# else 339# else
314# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
315# endif 341# endif
316#endif 342#endif
317 343
… …
320# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
321# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
322#endif 348#endif
323 349
324#ifndef EV_VERIFY 350#ifndef EV_VERIFY
325# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
326#endif 352#endif
327 353
328#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
329# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
330#endif 356#endif
331 357
332#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
333# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
334#endif 360#endif
335 361
336/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
337/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
338#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
339# include <syscall.h> 365# include <sys/syscall.h>
340# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
341# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
342# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
343# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
344# else 370# else
… …
369# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
370# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
371#endif 397#endif
372 398
373#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
374# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
375# include <sys/select.h> 402# include <sys/select.h>
376# endif 403# endif
377#endif 404#endif
378 405
379#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
380# include <sys/utsname.h>
381# include <sys/statfs.h> 407# include <sys/statfs.h>
382# include <sys/inotify.h> 408# include <sys/inotify.h>
383/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
384# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
385# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
… …
402# define EFD_CLOEXEC O_CLOEXEC 428# define EFD_CLOEXEC O_CLOEXEC
403# else 429# else
404# define EFD_CLOEXEC 02000000 430# define EFD_CLOEXEC 02000000
405# endif 431# endif
406# endif 432# endif
407# ifdef __cplusplus
408extern "C" {
409# endif
410int (eventfd) (unsigned int initval, int flags); 433EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
411# ifdef __cplusplus
412}
413# endif
414#endif 434#endif
415 435
416#if EV_USE_SIGNALFD 436#if EV_USE_SIGNALFD
417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 437/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
418# include <stdint.h> 438# include <stdint.h>
… …
424# define SFD_CLOEXEC O_CLOEXEC 444# define SFD_CLOEXEC O_CLOEXEC
425# else 445# else
426# define SFD_CLOEXEC 02000000 446# define SFD_CLOEXEC 02000000
427# endif 447# endif
428# endif 448# endif
429# ifdef __cplusplus
430extern "C" {
431# endif
432int signalfd (int fd, const sigset_t *mask, int flags); 449EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
433 450
434struct signalfd_siginfo 451struct signalfd_siginfo
435{ 452{
436 uint32_t ssi_signo; 453 uint32_t ssi_signo;
437 char pad[128 - sizeof (uint32_t)]; 454 char pad[128 - sizeof (uint32_t)];
438}; 455};
439# ifdef __cplusplus
440}
441# endif 456#endif
442#endif
443
444 457
445/**/ 458/**/
446 459
447#if EV_VERIFY >= 3 460#if EV_VERIFY >= 3
448# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 461# define EV_FREQUENT_CHECK ev_verify (EV_A)
449#else 462#else
450# define EV_FREQUENT_CHECK do { } while (0) 463# define EV_FREQUENT_CHECK do { } while (0)
451#endif 464#endif
452 465
453/* 466/*
454 * This is used to avoid floating point rounding problems. 467 * 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. 468 * This value is good at least till the year 4000.
459 * Better solutions welcome.
460 */ 469 */
461#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 470#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
471/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
462 472
463#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 473#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) */ 474#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465 475
476#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
477#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
478
479/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
480/* ECB.H BEGIN */
481/*
482 * libecb - http://software.schmorp.de/pkg/libecb
483 *
484 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
485 * Copyright (©) 2011 Emanuele Giaquinta
486 * All rights reserved.
487 *
488 * Redistribution and use in source and binary forms, with or without modifica-
489 * tion, are permitted provided that the following conditions are met:
490 *
491 * 1. Redistributions of source code must retain the above copyright notice,
492 * this list of conditions and the following disclaimer.
493 *
494 * 2. Redistributions in binary form must reproduce the above copyright
495 * notice, this list of conditions and the following disclaimer in the
496 * documentation and/or other materials provided with the distribution.
497 *
498 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
499 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
500 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
501 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
502 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
503 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
504 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
505 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
506 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
507 * OF THE POSSIBILITY OF SUCH DAMAGE.
508 */
509
510#ifndef ECB_H
511#define ECB_H
512
513#ifdef _WIN32
514 typedef signed char int8_t;
515 typedef unsigned char uint8_t;
516 typedef signed short int16_t;
517 typedef unsigned short uint16_t;
518 typedef signed int int32_t;
519 typedef unsigned int uint32_t;
466#if __GNUC__ >= 4 520 #if __GNUC__
467# define expect(expr,value) __builtin_expect ((expr),(value)) 521 typedef signed long long int64_t;
468# define noinline __attribute__ ((noinline)) 522 typedef unsigned long long uint64_t;
523 #else /* _MSC_VER || __BORLANDC__ */
524 typedef signed __int64 int64_t;
525 typedef unsigned __int64 uint64_t;
526 #endif
469#else 527#else
470# define expect(expr,value) (expr) 528 #include <inttypes.h>
471# define noinline
472# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
473# define inline
474# endif 529#endif
530
531/* many compilers define _GNUC_ to some versions but then only implement
532 * what their idiot authors think are the "more important" extensions,
533 * causing enormous grief in return for some better fake benchmark numbers.
534 * or so.
535 * we try to detect these and simply assume they are not gcc - if they have
536 * an issue with that they should have done it right in the first place.
537 */
538#ifndef ECB_GCC_VERSION
539 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
540 #define ECB_GCC_VERSION(major,minor) 0
541 #else
542 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
475#endif 543 #endif
544#endif
476 545
546/*****************************************************************************/
547
548/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
549/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
550
551#if ECB_NO_THREADS
552# define ECB_NO_SMP 1
553#endif
554
555#if ECB_NO_THREADS || ECB_NO_SMP
556 #define ECB_MEMORY_FENCE do { } while (0)
557#endif
558
559#ifndef ECB_MEMORY_FENCE
560 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
561 #if __i386 || __i386__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
564 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
565 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
568 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
569 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
570 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
571 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
572 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
573 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
574 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
575 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
576 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
577 #elif __sparc || __sparc__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
579 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
580 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
581 #elif defined __s390__ || defined __s390x__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
583 #elif defined __mips__
584 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
585 #elif defined __alpha__
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
587 #endif
588 #endif
589#endif
590
591#ifndef ECB_MEMORY_FENCE
592 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
593 #define ECB_MEMORY_FENCE __sync_synchronize ()
594 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
595 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
596 #elif _MSC_VER >= 1400 /* VC++ 2005 */
597 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
598 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
599 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
600 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
601 #elif defined _WIN32
602 #include <WinNT.h>
603 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
604 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
605 #include <mbarrier.h>
606 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
607 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
608 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
609 #elif __xlC__
610 #define ECB_MEMORY_FENCE __sync ()
611 #endif
612#endif
613
614#ifndef ECB_MEMORY_FENCE
615 #if !ECB_AVOID_PTHREADS
616 /*
617 * if you get undefined symbol references to pthread_mutex_lock,
618 * or failure to find pthread.h, then you should implement
619 * the ECB_MEMORY_FENCE operations for your cpu/compiler
620 * OR provide pthread.h and link against the posix thread library
621 * of your system.
622 */
623 #include <pthread.h>
624 #define ECB_NEEDS_PTHREADS 1
625 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
626
627 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
628 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
629 #endif
630#endif
631
632#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
633 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
634#endif
635
636#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
637 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
638#endif
639
640/*****************************************************************************/
641
642#define ECB_C99 (__STDC_VERSION__ >= 199901L)
643
644#if __cplusplus
645 #define ecb_inline static inline
646#elif ECB_GCC_VERSION(2,5)
647 #define ecb_inline static __inline__
648#elif ECB_C99
649 #define ecb_inline static inline
650#else
651 #define ecb_inline static
652#endif
653
654#if ECB_GCC_VERSION(3,3)
655 #define ecb_restrict __restrict__
656#elif ECB_C99
657 #define ecb_restrict restrict
658#else
659 #define ecb_restrict
660#endif
661
662typedef int ecb_bool;
663
664#define ECB_CONCAT_(a, b) a ## b
665#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
666#define ECB_STRINGIFY_(a) # a
667#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
668
669#define ecb_function_ ecb_inline
670
671#if ECB_GCC_VERSION(3,1)
672 #define ecb_attribute(attrlist) __attribute__(attrlist)
673 #define ecb_is_constant(expr) __builtin_constant_p (expr)
674 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
675 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
676#else
677 #define ecb_attribute(attrlist)
678 #define ecb_is_constant(expr) 0
679 #define ecb_expect(expr,value) (expr)
680 #define ecb_prefetch(addr,rw,locality)
681#endif
682
683/* no emulation for ecb_decltype */
684#if ECB_GCC_VERSION(4,5)
685 #define ecb_decltype(x) __decltype(x)
686#elif ECB_GCC_VERSION(3,0)
687 #define ecb_decltype(x) __typeof(x)
688#endif
689
690#define ecb_noinline ecb_attribute ((__noinline__))
691#define ecb_noreturn ecb_attribute ((__noreturn__))
692#define ecb_unused ecb_attribute ((__unused__))
693#define ecb_const ecb_attribute ((__const__))
694#define ecb_pure ecb_attribute ((__pure__))
695
696#if ECB_GCC_VERSION(4,3)
697 #define ecb_artificial ecb_attribute ((__artificial__))
698 #define ecb_hot ecb_attribute ((__hot__))
699 #define ecb_cold ecb_attribute ((__cold__))
700#else
701 #define ecb_artificial
702 #define ecb_hot
703 #define ecb_cold
704#endif
705
706/* put around conditional expressions if you are very sure that the */
707/* expression is mostly true or mostly false. note that these return */
708/* booleans, not the expression. */
477#define expect_false(expr) expect ((expr) != 0, 0) 709#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
478#define expect_true(expr) expect ((expr) != 0, 1) 710#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
711/* for compatibility to the rest of the world */
712#define ecb_likely(expr) ecb_expect_true (expr)
713#define ecb_unlikely(expr) ecb_expect_false (expr)
714
715/* count trailing zero bits and count # of one bits */
716#if ECB_GCC_VERSION(3,4)
717 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
718 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
719 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
720 #define ecb_ctz32(x) __builtin_ctz (x)
721 #define ecb_ctz64(x) __builtin_ctzll (x)
722 #define ecb_popcount32(x) __builtin_popcount (x)
723 /* no popcountll */
724#else
725 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
726 ecb_function_ int
727 ecb_ctz32 (uint32_t x)
728 {
729 int r = 0;
730
731 x &= ~x + 1; /* this isolates the lowest bit */
732
733#if ECB_branchless_on_i386
734 r += !!(x & 0xaaaaaaaa) << 0;
735 r += !!(x & 0xcccccccc) << 1;
736 r += !!(x & 0xf0f0f0f0) << 2;
737 r += !!(x & 0xff00ff00) << 3;
738 r += !!(x & 0xffff0000) << 4;
739#else
740 if (x & 0xaaaaaaaa) r += 1;
741 if (x & 0xcccccccc) r += 2;
742 if (x & 0xf0f0f0f0) r += 4;
743 if (x & 0xff00ff00) r += 8;
744 if (x & 0xffff0000) r += 16;
745#endif
746
747 return r;
748 }
749
750 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
751 ecb_function_ int
752 ecb_ctz64 (uint64_t x)
753 {
754 int shift = x & 0xffffffffU ? 0 : 32;
755 return ecb_ctz32 (x >> shift) + shift;
756 }
757
758 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
759 ecb_function_ int
760 ecb_popcount32 (uint32_t x)
761 {
762 x -= (x >> 1) & 0x55555555;
763 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
764 x = ((x >> 4) + x) & 0x0f0f0f0f;
765 x *= 0x01010101;
766
767 return x >> 24;
768 }
769
770 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
771 ecb_function_ int ecb_ld32 (uint32_t x)
772 {
773 int r = 0;
774
775 if (x >> 16) { x >>= 16; r += 16; }
776 if (x >> 8) { x >>= 8; r += 8; }
777 if (x >> 4) { x >>= 4; r += 4; }
778 if (x >> 2) { x >>= 2; r += 2; }
779 if (x >> 1) { r += 1; }
780
781 return r;
782 }
783
784 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
785 ecb_function_ int ecb_ld64 (uint64_t x)
786 {
787 int r = 0;
788
789 if (x >> 32) { x >>= 32; r += 32; }
790
791 return r + ecb_ld32 (x);
792 }
793#endif
794
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
796ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
797{
798 return ( (x * 0x0802U & 0x22110U)
799 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
800}
801
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
803ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
804{
805 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
806 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
807 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
808 x = ( x >> 8 ) | ( x << 8);
809
810 return x;
811}
812
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
814ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
815{
816 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
817 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
818 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
819 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
820 x = ( x >> 16 ) | ( x << 16);
821
822 return x;
823}
824
825/* popcount64 is only available on 64 bit cpus as gcc builtin */
826/* so for this version we are lazy */
827ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
828ecb_function_ int
829ecb_popcount64 (uint64_t x)
830{
831 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
832}
833
834ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
835ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
836ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
837ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
838ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
839ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
840ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
841ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
842
843ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
844ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
845ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
846ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
847ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
848ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
849ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
850ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
851
852#if ECB_GCC_VERSION(4,3)
853 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
854 #define ecb_bswap32(x) __builtin_bswap32 (x)
855 #define ecb_bswap64(x) __builtin_bswap64 (x)
856#else
857 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
858 ecb_function_ uint16_t
859 ecb_bswap16 (uint16_t x)
860 {
861 return ecb_rotl16 (x, 8);
862 }
863
864 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
865 ecb_function_ uint32_t
866 ecb_bswap32 (uint32_t x)
867 {
868 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
869 }
870
871 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
872 ecb_function_ uint64_t
873 ecb_bswap64 (uint64_t x)
874 {
875 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
876 }
877#endif
878
879#if ECB_GCC_VERSION(4,5)
880 #define ecb_unreachable() __builtin_unreachable ()
881#else
882 /* this seems to work fine, but gcc always emits a warning for it :/ */
883 ecb_inline void ecb_unreachable (void) ecb_noreturn;
884 ecb_inline void ecb_unreachable (void) { }
885#endif
886
887/* try to tell the compiler that some condition is definitely true */
888#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
889
890ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
891ecb_inline unsigned char
892ecb_byteorder_helper (void)
893{
894 const uint32_t u = 0x11223344;
895 return *(unsigned char *)&u;
896}
897
898ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
899ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
900ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
901ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
902
903#if ECB_GCC_VERSION(3,0) || ECB_C99
904 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
905#else
906 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
907#endif
908
909#if __cplusplus
910 template<typename T>
911 static inline T ecb_div_rd (T val, T div)
912 {
913 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
914 }
915 template<typename T>
916 static inline T ecb_div_ru (T val, T div)
917 {
918 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
919 }
920#else
921 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
922 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
923#endif
924
925#if ecb_cplusplus_does_not_suck
926 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
927 template<typename T, int N>
928 static inline int ecb_array_length (const T (&arr)[N])
929 {
930 return N;
931 }
932#else
933 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
934#endif
935
936#endif
937
938/* ECB.H END */
939
940#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
941/* if your architecture doesn't need memory fences, e.g. because it is
942 * single-cpu/core, or if you use libev in a project that doesn't use libev
943 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
944 * libev, in which cases the memory fences become nops.
945 * alternatively, you can remove this #error and link against libpthread,
946 * which will then provide the memory fences.
947 */
948# error "memory fences not defined for your architecture, please report"
949#endif
950
951#ifndef ECB_MEMORY_FENCE
952# define ECB_MEMORY_FENCE do { } while (0)
953# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
954# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
955#endif
956
957#define expect_false(cond) ecb_expect_false (cond)
958#define expect_true(cond) ecb_expect_true (cond)
959#define noinline ecb_noinline
960
479#define inline_size static inline 961#define inline_size ecb_inline
480 962
481#if EV_MINIMAL 963#if EV_FEATURE_CODE
964# define inline_speed ecb_inline
965#else
482# define inline_speed static noinline 966# define inline_speed static noinline
483#else
484# define inline_speed static inline
485#endif 967#endif
486 968
487#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 969#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
488 970
489#if EV_MINPRI == EV_MAXPRI 971#if EV_MINPRI == EV_MAXPRI
… …
502#define ev_active(w) ((W)(w))->active 984#define ev_active(w) ((W)(w))->active
503#define ev_at(w) ((WT)(w))->at 985#define ev_at(w) ((WT)(w))->at
504 986
505#if EV_USE_REALTIME 987#if EV_USE_REALTIME
506/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 988/* 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 */ 989/* giving it a reasonably high chance of working on typical architectures */
508static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 990static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
509#endif 991#endif
510 992
511#if EV_USE_MONOTONIC 993#if EV_USE_MONOTONIC
512static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 994static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
526# include "ev_win32.c" 1008# include "ev_win32.c"
527#endif 1009#endif
528 1010
529/*****************************************************************************/ 1011/*****************************************************************************/
530 1012
1013/* define a suitable floor function (only used by periodics atm) */
1014
1015#if EV_USE_FLOOR
1016# include <math.h>
1017# define ev_floor(v) floor (v)
1018#else
1019
1020#include <float.h>
1021
1022/* a floor() replacement function, should be independent of ev_tstamp type */
1023static ev_tstamp noinline
1024ev_floor (ev_tstamp v)
1025{
1026 /* the choice of shift factor is not terribly important */
1027#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1028 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1029#else
1030 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1031#endif
1032
1033 /* argument too large for an unsigned long? */
1034 if (expect_false (v >= shift))
1035 {
1036 ev_tstamp f;
1037
1038 if (v == v - 1.)
1039 return v; /* very large number */
1040
1041 f = shift * ev_floor (v * (1. / shift));
1042 return f + ev_floor (v - f);
1043 }
1044
1045 /* special treatment for negative args? */
1046 if (expect_false (v < 0.))
1047 {
1048 ev_tstamp f = -ev_floor (-v);
1049
1050 return f - (f == v ? 0 : 1);
1051 }
1052
1053 /* fits into an unsigned long */
1054 return (unsigned long)v;
1055}
1056
1057#endif
1058
1059/*****************************************************************************/
1060
1061#ifdef __linux
1062# include <sys/utsname.h>
1063#endif
1064
1065static unsigned int noinline ecb_cold
1066ev_linux_version (void)
1067{
1068#ifdef __linux
1069 unsigned int v = 0;
1070 struct utsname buf;
1071 int i;
1072 char *p = buf.release;
1073
1074 if (uname (&buf))
1075 return 0;
1076
1077 for (i = 3+1; --i; )
1078 {
1079 unsigned int c = 0;
1080
1081 for (;;)
1082 {
1083 if (*p >= '0' && *p <= '9')
1084 c = c * 10 + *p++ - '0';
1085 else
1086 {
1087 p += *p == '.';
1088 break;
1089 }
1090 }
1091
1092 v = (v << 8) | c;
1093 }
1094
1095 return v;
1096#else
1097 return 0;
1098#endif
1099}
1100
1101/*****************************************************************************/
1102
531#if EV_AVOID_STDIO 1103#if EV_AVOID_STDIO
532static void noinline 1104static void noinline ecb_cold
533ev_printerr (const char *msg) 1105ev_printerr (const char *msg)
534{ 1106{
535 write (STDERR_FILENO, msg, strlen (msg)); 1107 write (STDERR_FILENO, msg, strlen (msg));
536} 1108}
537#endif 1109#endif
538 1110
539static void (*syserr_cb)(const char *msg); 1111static void (*syserr_cb)(const char *msg) EV_THROW;
540 1112
541void 1113void ecb_cold
542ev_set_syserr_cb (void (*cb)(const char *msg)) 1114ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
543{ 1115{
544 syserr_cb = cb; 1116 syserr_cb = cb;
545} 1117}
546 1118
547static void noinline 1119static void noinline ecb_cold
548ev_syserr (const char *msg) 1120ev_syserr (const char *msg)
549{ 1121{
550 if (!msg) 1122 if (!msg)
551 msg = "(libev) system error"; 1123 msg = "(libev) system error";
552 1124
553 if (syserr_cb) 1125 if (syserr_cb)
554 syserr_cb (msg); 1126 syserr_cb (msg);
555 else 1127 else
556 { 1128 {
557#if EV_AVOID_STDIO 1129#if EV_AVOID_STDIO
558 const char *err = strerror (errno);
559
560 ev_printerr (msg); 1130 ev_printerr (msg);
561 ev_printerr (": "); 1131 ev_printerr (": ");
562 ev_printerr (err); 1132 ev_printerr (strerror (errno));
563 ev_printerr ("\n"); 1133 ev_printerr ("\n");
564#else 1134#else
565 perror (msg); 1135 perror (msg);
566#endif 1136#endif
567 abort (); 1137 abort ();
… …
585 free (ptr); 1155 free (ptr);
586 return 0; 1156 return 0;
587#endif 1157#endif
588} 1158}
589 1159
590static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1160static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
591 1161
592void 1162void ecb_cold
593ev_set_allocator (void *(*cb)(void *ptr, long size)) 1163ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
594{ 1164{
595 alloc = cb; 1165 alloc = cb;
596} 1166}
597 1167
598inline_speed void * 1168inline_speed void *
… …
601 ptr = alloc (ptr, size); 1171 ptr = alloc (ptr, size);
602 1172
603 if (!ptr && size) 1173 if (!ptr && size)
604 { 1174 {
605#if EV_AVOID_STDIO 1175#if EV_AVOID_STDIO
606 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1176 ev_printerr ("(libev) memory allocation failed, aborting.\n");
607#else 1177#else
608 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1178 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
609#endif 1179#endif
610 abort (); 1180 abort ();
611 } 1181 }
612 1182
613 return ptr; 1183 return ptr;
… …
630 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1200 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
631 unsigned char unused; 1201 unsigned char unused;
632#if EV_USE_EPOLL 1202#if EV_USE_EPOLL
633 unsigned int egen; /* generation counter to counter epoll bugs */ 1203 unsigned int egen; /* generation counter to counter epoll bugs */
634#endif 1204#endif
635#if EV_SELECT_IS_WINSOCKET 1205#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
636 SOCKET handle; 1206 SOCKET handle;
1207#endif
1208#if EV_USE_IOCP
1209 OVERLAPPED or, ow;
637#endif 1210#endif
638} ANFD; 1211} ANFD;
639 1212
640/* stores the pending event set for a given watcher */ 1213/* stores the pending event set for a given watcher */
641typedef struct 1214typedef struct
… …
683 #undef VAR 1256 #undef VAR
684 }; 1257 };
685 #include "ev_wrap.h" 1258 #include "ev_wrap.h"
686 1259
687 static struct ev_loop default_loop_struct; 1260 static struct ev_loop default_loop_struct;
688 struct ev_loop *ev_default_loop_ptr; 1261 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
689 1262
690#else 1263#else
691 1264
692 ev_tstamp ev_rt_now; 1265 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; 1266 #define VAR(name,decl) static decl;
694 #include "ev_vars.h" 1267 #include "ev_vars.h"
695 #undef VAR 1268 #undef VAR
696 1269
697 static int ev_default_loop_ptr; 1270 static int ev_default_loop_ptr;
698 1271
699#endif 1272#endif
700 1273
701#if EV_MINIMAL < 2 1274#if EV_FEATURE_API
702# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1275# 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) 1276# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
704# define EV_INVOKE_PENDING invoke_cb (EV_A) 1277# define EV_INVOKE_PENDING invoke_cb (EV_A)
705#else 1278#else
706# define EV_RELEASE_CB (void)0 1279# define EV_RELEASE_CB (void)0
707# define EV_ACQUIRE_CB (void)0 1280# define EV_ACQUIRE_CB (void)0
708# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1281# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
709#endif 1282#endif
710 1283
711#define EVUNLOOP_RECURSE 0x80 1284#define EVBREAK_RECURSE 0x80
712 1285
713/*****************************************************************************/ 1286/*****************************************************************************/
714 1287
715#ifndef EV_HAVE_EV_TIME 1288#ifndef EV_HAVE_EV_TIME
716ev_tstamp 1289ev_tstamp
717ev_time (void) 1290ev_time (void) EV_THROW
718{ 1291{
719#if EV_USE_REALTIME 1292#if EV_USE_REALTIME
720 if (expect_true (have_realtime)) 1293 if (expect_true (have_realtime))
721 { 1294 {
722 struct timespec ts; 1295 struct timespec ts;
… …
746 return ev_time (); 1319 return ev_time ();
747} 1320}
748 1321
749#if EV_MULTIPLICITY 1322#if EV_MULTIPLICITY
750ev_tstamp 1323ev_tstamp
751ev_now (EV_P) 1324ev_now (EV_P) EV_THROW
752{ 1325{
753 return ev_rt_now; 1326 return ev_rt_now;
754} 1327}
755#endif 1328#endif
756 1329
757void 1330void
758ev_sleep (ev_tstamp delay) 1331ev_sleep (ev_tstamp delay) EV_THROW
759{ 1332{
760 if (delay > 0.) 1333 if (delay > 0.)
761 { 1334 {
762#if EV_USE_NANOSLEEP 1335#if EV_USE_NANOSLEEP
763 struct timespec ts; 1336 struct timespec ts;
764 1337
765 ts.tv_sec = (time_t)delay; 1338 EV_TS_SET (ts, delay);
766 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
767
768 nanosleep (&ts, 0); 1339 nanosleep (&ts, 0);
769#elif defined(_WIN32) 1340#elif defined _WIN32
770 Sleep ((unsigned long)(delay * 1e3)); 1341 Sleep ((unsigned long)(delay * 1e3));
771#else 1342#else
772 struct timeval tv; 1343 struct timeval tv;
773 1344
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 */ 1345 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
778 /* something not guaranteed by newer posix versions, but guaranteed */ 1346 /* something not guaranteed by newer posix versions, but guaranteed */
779 /* by older ones */ 1347 /* by older ones */
1348 EV_TV_SET (tv, delay);
780 select (0, 0, 0, 0, &tv); 1349 select (0, 0, 0, 0, &tv);
781#endif 1350#endif
782 } 1351 }
783} 1352}
784 1353
785/*****************************************************************************/ 1354/*****************************************************************************/
786 1355
787#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1356#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
788 1357
789/* find a suitable new size for the given array, */ 1358/* find a suitable new size for the given array, */
790/* hopefully by rounding to a ncie-to-malloc size */ 1359/* hopefully by rounding to a nice-to-malloc size */
791inline_size int 1360inline_size int
792array_nextsize (int elem, int cur, int cnt) 1361array_nextsize (int elem, int cur, int cnt)
793{ 1362{
794 int ncur = cur + 1; 1363 int ncur = cur + 1;
795 1364
796 do 1365 do
797 ncur <<= 1; 1366 ncur <<= 1;
798 while (cnt > ncur); 1367 while (cnt > ncur);
799 1368
800 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1369 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
801 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1370 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
802 { 1371 {
803 ncur *= elem; 1372 ncur *= elem;
804 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1373 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
805 ncur = ncur - sizeof (void *) * 4; 1374 ncur = ncur - sizeof (void *) * 4;
… …
807 } 1376 }
808 1377
809 return ncur; 1378 return ncur;
810} 1379}
811 1380
812static noinline void * 1381static void * noinline ecb_cold
813array_realloc (int elem, void *base, int *cur, int cnt) 1382array_realloc (int elem, void *base, int *cur, int cnt)
814{ 1383{
815 *cur = array_nextsize (elem, *cur, cnt); 1384 *cur = array_nextsize (elem, *cur, cnt);
816 return ev_realloc (base, elem * *cur); 1385 return ev_realloc (base, elem * *cur);
817} 1386}
… …
820 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1389 memset ((void *)(base), 0, sizeof (*(base)) * (count))
821 1390
822#define array_needsize(type,base,cur,cnt,init) \ 1391#define array_needsize(type,base,cur,cnt,init) \
823 if (expect_false ((cnt) > (cur))) \ 1392 if (expect_false ((cnt) > (cur))) \
824 { \ 1393 { \
825 int ocur_ = (cur); \ 1394 int ecb_unused ocur_ = (cur); \
826 (base) = (type *)array_realloc \ 1395 (base) = (type *)array_realloc \
827 (sizeof (type), (base), &(cur), (cnt)); \ 1396 (sizeof (type), (base), &(cur), (cnt)); \
828 init ((base) + (ocur_), (cur) - ocur_); \ 1397 init ((base) + (ocur_), (cur) - ocur_); \
829 } 1398 }
830 1399
… …
848pendingcb (EV_P_ ev_prepare *w, int revents) 1417pendingcb (EV_P_ ev_prepare *w, int revents)
849{ 1418{
850} 1419}
851 1420
852void noinline 1421void noinline
853ev_feed_event (EV_P_ void *w, int revents) 1422ev_feed_event (EV_P_ void *w, int revents) EV_THROW
854{ 1423{
855 W w_ = (W)w; 1424 W w_ = (W)w;
856 int pri = ABSPRI (w_); 1425 int pri = ABSPRI (w_);
857 1426
858 if (expect_false (w_->pending)) 1427 if (expect_false (w_->pending))
… …
862 w_->pending = ++pendingcnt [pri]; 1431 w_->pending = ++pendingcnt [pri];
863 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1432 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
864 pendings [pri][w_->pending - 1].w = w_; 1433 pendings [pri][w_->pending - 1].w = w_;
865 pendings [pri][w_->pending - 1].events = revents; 1434 pendings [pri][w_->pending - 1].events = revents;
866 } 1435 }
1436
1437 pendingpri = NUMPRI - 1;
867} 1438}
868 1439
869inline_speed void 1440inline_speed void
870feed_reverse (EV_P_ W w) 1441feed_reverse (EV_P_ W w)
871{ 1442{
… …
917 if (expect_true (!anfd->reify)) 1488 if (expect_true (!anfd->reify))
918 fd_event_nocheck (EV_A_ fd, revents); 1489 fd_event_nocheck (EV_A_ fd, revents);
919} 1490}
920 1491
921void 1492void
922ev_feed_fd_event (EV_P_ int fd, int revents) 1493ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
923{ 1494{
924 if (fd >= 0 && fd < anfdmax) 1495 if (fd >= 0 && fd < anfdmax)
925 fd_event_nocheck (EV_A_ fd, revents); 1496 fd_event_nocheck (EV_A_ fd, revents);
926} 1497}
927 1498
… …
930inline_size void 1501inline_size void
931fd_reify (EV_P) 1502fd_reify (EV_P)
932{ 1503{
933 int i; 1504 int i;
934 1505
1506#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1507 for (i = 0; i < fdchangecnt; ++i)
1508 {
1509 int fd = fdchanges [i];
1510 ANFD *anfd = anfds + fd;
1511
1512 if (anfd->reify & EV__IOFDSET && anfd->head)
1513 {
1514 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1515
1516 if (handle != anfd->handle)
1517 {
1518 unsigned long arg;
1519
1520 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1521
1522 /* handle changed, but fd didn't - we need to do it in two steps */
1523 backend_modify (EV_A_ fd, anfd->events, 0);
1524 anfd->events = 0;
1525 anfd->handle = handle;
1526 }
1527 }
1528 }
1529#endif
1530
935 for (i = 0; i < fdchangecnt; ++i) 1531 for (i = 0; i < fdchangecnt; ++i)
936 { 1532 {
937 int fd = fdchanges [i]; 1533 int fd = fdchanges [i];
938 ANFD *anfd = anfds + fd; 1534 ANFD *anfd = anfds + fd;
939 ev_io *w; 1535 ev_io *w;
940 1536
941 unsigned char events = 0; 1537 unsigned char o_events = anfd->events;
1538 unsigned char o_reify = anfd->reify;
942 1539
943 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1540 anfd->reify = 0;
944 events |= (unsigned char)w->events;
945 1541
946#if EV_SELECT_IS_WINSOCKET 1542 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
947 if (events)
948 { 1543 {
949 unsigned long arg; 1544 anfd->events = 0;
950 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1545
951 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1546 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1547 anfd->events |= (unsigned char)w->events;
1548
1549 if (o_events != anfd->events)
1550 o_reify = EV__IOFDSET; /* actually |= */
952 } 1551 }
953#endif
954 1552
955 { 1553 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); 1554 backend_modify (EV_A_ fd, o_events, anfd->events);
964 }
965 } 1555 }
966 1556
967 fdchangecnt = 0; 1557 fdchangecnt = 0;
968} 1558}
969 1559
… …
981 fdchanges [fdchangecnt - 1] = fd; 1571 fdchanges [fdchangecnt - 1] = fd;
982 } 1572 }
983} 1573}
984 1574
985/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1575/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
986inline_speed void 1576inline_speed void ecb_cold
987fd_kill (EV_P_ int fd) 1577fd_kill (EV_P_ int fd)
988{ 1578{
989 ev_io *w; 1579 ev_io *w;
990 1580
991 while ((w = (ev_io *)anfds [fd].head)) 1581 while ((w = (ev_io *)anfds [fd].head))
… …
994 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1584 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
995 } 1585 }
996} 1586}
997 1587
998/* check whether the given fd is actually valid, for error recovery */ 1588/* check whether the given fd is actually valid, for error recovery */
999inline_size int 1589inline_size int ecb_cold
1000fd_valid (int fd) 1590fd_valid (int fd)
1001{ 1591{
1002#ifdef _WIN32 1592#ifdef _WIN32
1003 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1593 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1004#else 1594#else
1005 return fcntl (fd, F_GETFD) != -1; 1595 return fcntl (fd, F_GETFD) != -1;
1006#endif 1596#endif
1007} 1597}
1008 1598
1009/* called on EBADF to verify fds */ 1599/* called on EBADF to verify fds */
1010static void noinline 1600static void noinline ecb_cold
1011fd_ebadf (EV_P) 1601fd_ebadf (EV_P)
1012{ 1602{
1013 int fd; 1603 int fd;
1014 1604
1015 for (fd = 0; fd < anfdmax; ++fd) 1605 for (fd = 0; fd < anfdmax; ++fd)
… …
1017 if (!fd_valid (fd) && errno == EBADF) 1607 if (!fd_valid (fd) && errno == EBADF)
1018 fd_kill (EV_A_ fd); 1608 fd_kill (EV_A_ fd);
1019} 1609}
1020 1610
1021/* called on ENOMEM in select/poll to kill some fds and retry */ 1611/* called on ENOMEM in select/poll to kill some fds and retry */
1022static void noinline 1612static void noinline ecb_cold
1023fd_enomem (EV_P) 1613fd_enomem (EV_P)
1024{ 1614{
1025 int fd; 1615 int fd;
1026 1616
1027 for (fd = anfdmax; fd--; ) 1617 for (fd = anfdmax; fd--; )
… …
1062} 1652}
1063 1653
1064/*****************************************************************************/ 1654/*****************************************************************************/
1065 1655
1066/* 1656/*
1067 * the heap functions want a real array index. array index 0 uis guaranteed to not 1657 * 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 1658 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1069 * the branching factor of the d-tree. 1659 * the branching factor of the d-tree.
1070 */ 1660 */
1071 1661
1072/* 1662/*
… …
1222 1812
1223/*****************************************************************************/ 1813/*****************************************************************************/
1224 1814
1225#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 1815#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1226 1816
1227static void noinline 1817static void noinline ecb_cold
1228evpipe_init (EV_P) 1818evpipe_init (EV_P)
1229{ 1819{
1230 if (!ev_is_active (&pipe_w)) 1820 if (!ev_is_active (&pipe_w))
1231 { 1821 {
1232# if EV_USE_EVENTFD 1822# if EV_USE_EVENTFD
… …
1254 ev_io_start (EV_A_ &pipe_w); 1844 ev_io_start (EV_A_ &pipe_w);
1255 ev_unref (EV_A); /* watcher should not keep loop alive */ 1845 ev_unref (EV_A); /* watcher should not keep loop alive */
1256 } 1846 }
1257} 1847}
1258 1848
1259inline_size void 1849inline_speed void
1260evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1850evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1261{ 1851{
1262 if (!*flag) 1852 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1853
1854 if (expect_true (*flag))
1855 return;
1856
1857 *flag = 1;
1858
1859 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1860
1861 pipe_write_skipped = 1;
1862
1863 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1864
1865 if (pipe_write_wanted)
1263 { 1866 {
1867 int old_errno;
1868
1869 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1870
1264 int old_errno = errno; /* save errno because write might clobber it */ 1871 old_errno = errno; /* save errno because write will clobber it */
1265 char dummy;
1266
1267 *flag = 1;
1268 1872
1269#if EV_USE_EVENTFD 1873#if EV_USE_EVENTFD
1270 if (evfd >= 0) 1874 if (evfd >= 0)
1271 { 1875 {
1272 uint64_t counter = 1; 1876 uint64_t counter = 1;
1273 write (evfd, &counter, sizeof (uint64_t)); 1877 write (evfd, &counter, sizeof (uint64_t));
1274 } 1878 }
1275 else 1879 else
1276#endif 1880#endif
1881 {
1882#ifdef _WIN32
1883 WSABUF buf;
1884 DWORD sent;
1885 buf.buf = &buf;
1886 buf.len = 1;
1887 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1888#else
1277 write (evpipe [1], &dummy, 1); 1889 write (evpipe [1], &(evpipe [1]), 1);
1890#endif
1891 }
1278 1892
1279 errno = old_errno; 1893 errno = old_errno;
1280 } 1894 }
1281} 1895}
1282 1896
… …
1285static void 1899static void
1286pipecb (EV_P_ ev_io *iow, int revents) 1900pipecb (EV_P_ ev_io *iow, int revents)
1287{ 1901{
1288 int i; 1902 int i;
1289 1903
1904 if (revents & EV_READ)
1905 {
1290#if EV_USE_EVENTFD 1906#if EV_USE_EVENTFD
1291 if (evfd >= 0) 1907 if (evfd >= 0)
1292 { 1908 {
1293 uint64_t counter; 1909 uint64_t counter;
1294 read (evfd, &counter, sizeof (uint64_t)); 1910 read (evfd, &counter, sizeof (uint64_t));
1295 } 1911 }
1296 else 1912 else
1297#endif 1913#endif
1298 { 1914 {
1299 char dummy; 1915 char dummy[4];
1916#ifdef _WIN32
1917 WSABUF buf;
1918 DWORD recvd;
1919 buf.buf = dummy;
1920 buf.len = sizeof (dummy);
1921 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0);
1922#else
1300 read (evpipe [0], &dummy, 1); 1923 read (evpipe [0], &dummy, sizeof (dummy));
1924#endif
1925 }
1301 } 1926 }
1302 1927
1928 pipe_write_skipped = 0;
1929
1930 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1931
1932#if EV_SIGNAL_ENABLE
1303 if (sig_pending) 1933 if (sig_pending)
1304 { 1934 {
1305 sig_pending = 0; 1935 sig_pending = 0;
1936
1937 ECB_MEMORY_FENCE_RELEASE;
1306 1938
1307 for (i = EV_NSIG - 1; i--; ) 1939 for (i = EV_NSIG - 1; i--; )
1308 if (expect_false (signals [i].pending)) 1940 if (expect_false (signals [i].pending))
1309 ev_feed_signal_event (EV_A_ i + 1); 1941 ev_feed_signal_event (EV_A_ i + 1);
1310 } 1942 }
1943#endif
1311 1944
1312#if EV_ASYNC_ENABLE 1945#if EV_ASYNC_ENABLE
1313 if (async_pending) 1946 if (async_pending)
1314 { 1947 {
1315 async_pending = 0; 1948 async_pending = 0;
1949
1950 ECB_MEMORY_FENCE_RELEASE;
1316 1951
1317 for (i = asynccnt; i--; ) 1952 for (i = asynccnt; i--; )
1318 if (asyncs [i]->sent) 1953 if (asyncs [i]->sent)
1319 { 1954 {
1320 asyncs [i]->sent = 0; 1955 asyncs [i]->sent = 0;
… …
1324#endif 1959#endif
1325} 1960}
1326 1961
1327/*****************************************************************************/ 1962/*****************************************************************************/
1328 1963
1964void
1965ev_feed_signal (int signum) EV_THROW
1966{
1967#if EV_MULTIPLICITY
1968 EV_P = signals [signum - 1].loop;
1969
1970 if (!EV_A)
1971 return;
1972#endif
1973
1974 if (!ev_active (&pipe_w))
1975 return;
1976
1977 signals [signum - 1].pending = 1;
1978 evpipe_write (EV_A_ &sig_pending);
1979}
1980
1329static void 1981static void
1330ev_sighandler (int signum) 1982ev_sighandler (int signum)
1331{ 1983{
1332#if EV_MULTIPLICITY
1333 EV_P = signals [signum - 1].loop;
1334#endif
1335
1336#ifdef _WIN32 1984#ifdef _WIN32
1337 signal (signum, ev_sighandler); 1985 signal (signum, ev_sighandler);
1338#endif 1986#endif
1339 1987
1340 signals [signum - 1].pending = 1; 1988 ev_feed_signal (signum);
1341 evpipe_write (EV_A_ &sig_pending);
1342} 1989}
1343 1990
1344void noinline 1991void noinline
1345ev_feed_signal_event (EV_P_ int signum) 1992ev_feed_signal_event (EV_P_ int signum) EV_THROW
1346{ 1993{
1347 WL w; 1994 WL w;
1348 1995
1349 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1996 if (expect_false (signum <= 0 || signum > EV_NSIG))
1350 return; 1997 return;
… …
1403child_reap (EV_P_ int chain, int pid, int status) 2050child_reap (EV_P_ int chain, int pid, int status)
1404{ 2051{
1405 ev_child *w; 2052 ev_child *w;
1406 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2053 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1407 2054
1408 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2055 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1409 { 2056 {
1410 if ((w->pid == pid || !w->pid) 2057 if ((w->pid == pid || !w->pid)
1411 && (!traced || (w->flags & 1))) 2058 && (!traced || (w->flags & 1)))
1412 { 2059 {
1413 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2060 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 */ 2085 /* 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 */ 2086 /* 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); 2087 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1441 2088
1442 child_reap (EV_A_ pid, pid, status); 2089 child_reap (EV_A_ pid, pid, status);
1443 if (EV_PID_HASHSIZE > 1) 2090 if ((EV_PID_HASHSIZE) > 1)
1444 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2091 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1445} 2092}
1446 2093
1447#endif 2094#endif
1448 2095
1449/*****************************************************************************/ 2096/*****************************************************************************/
1450 2097
2098#if EV_USE_IOCP
2099# include "ev_iocp.c"
2100#endif
1451#if EV_USE_PORT 2101#if EV_USE_PORT
1452# include "ev_port.c" 2102# include "ev_port.c"
1453#endif 2103#endif
1454#if EV_USE_KQUEUE 2104#if EV_USE_KQUEUE
1455# include "ev_kqueue.c" 2105# include "ev_kqueue.c"
… …
1462#endif 2112#endif
1463#if EV_USE_SELECT 2113#if EV_USE_SELECT
1464# include "ev_select.c" 2114# include "ev_select.c"
1465#endif 2115#endif
1466 2116
1467int 2117int ecb_cold
1468ev_version_major (void) 2118ev_version_major (void) EV_THROW
1469{ 2119{
1470 return EV_VERSION_MAJOR; 2120 return EV_VERSION_MAJOR;
1471} 2121}
1472 2122
1473int 2123int ecb_cold
1474ev_version_minor (void) 2124ev_version_minor (void) EV_THROW
1475{ 2125{
1476 return EV_VERSION_MINOR; 2126 return EV_VERSION_MINOR;
1477} 2127}
1478 2128
1479/* return true if we are running with elevated privileges and should ignore env variables */ 2129/* return true if we are running with elevated privileges and should ignore env variables */
1480int inline_size 2130int inline_size ecb_cold
1481enable_secure (void) 2131enable_secure (void)
1482{ 2132{
1483#ifdef _WIN32 2133#ifdef _WIN32
1484 return 0; 2134 return 0;
1485#else 2135#else
1486 return getuid () != geteuid () 2136 return getuid () != geteuid ()
1487 || getgid () != getegid (); 2137 || getgid () != getegid ();
1488#endif 2138#endif
1489} 2139}
1490 2140
1491unsigned int 2141unsigned int ecb_cold
1492ev_supported_backends (void) 2142ev_supported_backends (void) EV_THROW
1493{ 2143{
1494 unsigned int flags = 0; 2144 unsigned int flags = 0;
1495 2145
1496 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2146 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1497 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2147 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1500 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2150 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1501 2151
1502 return flags; 2152 return flags;
1503} 2153}
1504 2154
1505unsigned int 2155unsigned int ecb_cold
1506ev_recommended_backends (void) 2156ev_recommended_backends (void) EV_THROW
1507{ 2157{
1508 unsigned int flags = ev_supported_backends (); 2158 unsigned int flags = ev_supported_backends ();
1509 2159
1510#ifndef __NetBSD__ 2160#ifndef __NetBSD__
1511 /* kqueue is borked on everything but netbsd apparently */ 2161 /* kqueue is borked on everything but netbsd apparently */
… …
1515#ifdef __APPLE__ 2165#ifdef __APPLE__
1516 /* only select works correctly on that "unix-certified" platform */ 2166 /* only select works correctly on that "unix-certified" platform */
1517 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2167 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1518 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2168 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1519#endif 2169#endif
2170#ifdef __FreeBSD__
2171 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2172#endif
1520 2173
1521 return flags; 2174 return flags;
1522} 2175}
1523 2176
2177unsigned int ecb_cold
2178ev_embeddable_backends (void) EV_THROW
2179{
2180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2181
2182 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2183 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2184 flags &= ~EVBACKEND_EPOLL;
2185
2186 return flags;
2187}
2188
1524unsigned int 2189unsigned int
1525ev_embeddable_backends (void) 2190ev_backend (EV_P) EV_THROW
1526{ 2191{
1527 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2192 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} 2193}
1535 2194
2195#if EV_FEATURE_API
1536unsigned int 2196unsigned int
1537ev_backend (EV_P) 2197ev_iteration (EV_P) EV_THROW
1538{ 2198{
1539 return backend; 2199 return loop_count;
1540} 2200}
1541 2201
1542#if EV_MINIMAL < 2
1543unsigned int 2202unsigned int
1544ev_loop_count (EV_P) 2203ev_depth (EV_P) EV_THROW
1545{
1546 return loop_count;
1547}
1548
1549unsigned int
1550ev_loop_depth (EV_P)
1551{ 2204{
1552 return loop_depth; 2205 return loop_depth;
1553} 2206}
1554 2207
1555void 2208void
1556ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2209ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1557{ 2210{
1558 io_blocktime = interval; 2211 io_blocktime = interval;
1559} 2212}
1560 2213
1561void 2214void
1562ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2215ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1563{ 2216{
1564 timeout_blocktime = interval; 2217 timeout_blocktime = interval;
1565} 2218}
1566 2219
1567void 2220void
1568ev_set_userdata (EV_P_ void *data) 2221ev_set_userdata (EV_P_ void *data) EV_THROW
1569{ 2222{
1570 userdata = data; 2223 userdata = data;
1571} 2224}
1572 2225
1573void * 2226void *
1574ev_userdata (EV_P) 2227ev_userdata (EV_P) EV_THROW
1575{ 2228{
1576 return userdata; 2229 return userdata;
1577} 2230}
1578 2231
2232void
1579void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2233ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1580{ 2234{
1581 invoke_cb = invoke_pending_cb; 2235 invoke_cb = invoke_pending_cb;
1582} 2236}
1583 2237
2238void
1584void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2239ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1585{ 2240{
1586 release_cb = release; 2241 release_cb = release;
1587 acquire_cb = acquire; 2242 acquire_cb = acquire;
1588} 2243}
1589#endif 2244#endif
1590 2245
1591/* initialise a loop structure, must be zero-initialised */ 2246/* initialise a loop structure, must be zero-initialised */
1592static void noinline 2247static void noinline ecb_cold
1593loop_init (EV_P_ unsigned int flags) 2248loop_init (EV_P_ unsigned int flags) EV_THROW
1594{ 2249{
1595 if (!backend) 2250 if (!backend)
1596 { 2251 {
2252 origflags = flags;
2253
1597#if EV_USE_REALTIME 2254#if EV_USE_REALTIME
1598 if (!have_realtime) 2255 if (!have_realtime)
1599 { 2256 {
1600 struct timespec ts; 2257 struct timespec ts;
1601 2258
… …
1623 if (!(flags & EVFLAG_NOENV) 2280 if (!(flags & EVFLAG_NOENV)
1624 && !enable_secure () 2281 && !enable_secure ()
1625 && getenv ("LIBEV_FLAGS")) 2282 && getenv ("LIBEV_FLAGS"))
1626 flags = atoi (getenv ("LIBEV_FLAGS")); 2283 flags = atoi (getenv ("LIBEV_FLAGS"));
1627 2284
1628 ev_rt_now = ev_time (); 2285 ev_rt_now = ev_time ();
1629 mn_now = get_clock (); 2286 mn_now = get_clock ();
1630 now_floor = mn_now; 2287 now_floor = mn_now;
1631 rtmn_diff = ev_rt_now - mn_now; 2288 rtmn_diff = ev_rt_now - mn_now;
1632#if EV_MINIMAL < 2 2289#if EV_FEATURE_API
1633 invoke_cb = ev_invoke_pending; 2290 invoke_cb = ev_invoke_pending;
1634#endif 2291#endif
1635 2292
1636 io_blocktime = 0.; 2293 io_blocktime = 0.;
1637 timeout_blocktime = 0.; 2294 timeout_blocktime = 0.;
1638 backend = 0; 2295 backend = 0;
1639 backend_fd = -1; 2296 backend_fd = -1;
1640 sig_pending = 0; 2297 sig_pending = 0;
1641#if EV_ASYNC_ENABLE 2298#if EV_ASYNC_ENABLE
1642 async_pending = 0; 2299 async_pending = 0;
1643#endif 2300#endif
2301 pipe_write_skipped = 0;
2302 pipe_write_wanted = 0;
1644#if EV_USE_INOTIFY 2303#if EV_USE_INOTIFY
1645 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2304 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1646#endif 2305#endif
1647#if EV_USE_SIGNALFD 2306#if EV_USE_SIGNALFD
1648 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2307 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1649#endif 2308#endif
1650 2309
1651 if (!(flags & 0x0000ffffU)) 2310 if (!(flags & EVBACKEND_MASK))
1652 flags |= ev_recommended_backends (); 2311 flags |= ev_recommended_backends ();
1653 2312
2313#if EV_USE_IOCP
2314 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2315#endif
1654#if EV_USE_PORT 2316#if EV_USE_PORT
1655 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1656#endif 2318#endif
1657#if EV_USE_KQUEUE 2319#if EV_USE_KQUEUE
1658 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2320 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1675#endif 2337#endif
1676 } 2338 }
1677} 2339}
1678 2340
1679/* free up a loop structure */ 2341/* free up a loop structure */
1680static void noinline 2342void ecb_cold
1681loop_destroy (EV_P) 2343ev_loop_destroy (EV_P)
1682{ 2344{
1683 int i; 2345 int i;
2346
2347#if EV_MULTIPLICITY
2348 /* mimic free (0) */
2349 if (!EV_A)
2350 return;
2351#endif
2352
2353#if EV_CLEANUP_ENABLE
2354 /* queue cleanup watchers (and execute them) */
2355 if (expect_false (cleanupcnt))
2356 {
2357 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2358 EV_INVOKE_PENDING;
2359 }
2360#endif
2361
2362#if EV_CHILD_ENABLE
2363 if (ev_is_active (&childev))
2364 {
2365 ev_ref (EV_A); /* child watcher */
2366 ev_signal_stop (EV_A_ &childev);
2367 }
2368#endif
1684 2369
1685 if (ev_is_active (&pipe_w)) 2370 if (ev_is_active (&pipe_w))
1686 { 2371 {
1687 /*ev_ref (EV_A);*/ 2372 /*ev_ref (EV_A);*/
1688 /*ev_io_stop (EV_A_ &pipe_w);*/ 2373 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1710#endif 2395#endif
1711 2396
1712 if (backend_fd >= 0) 2397 if (backend_fd >= 0)
1713 close (backend_fd); 2398 close (backend_fd);
1714 2399
2400#if EV_USE_IOCP
2401 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2402#endif
1715#if EV_USE_PORT 2403#if EV_USE_PORT
1716 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2404 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1717#endif 2405#endif
1718#if EV_USE_KQUEUE 2406#if EV_USE_KQUEUE
1719 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2407 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1746 array_free (periodic, EMPTY); 2434 array_free (periodic, EMPTY);
1747#endif 2435#endif
1748#if EV_FORK_ENABLE 2436#if EV_FORK_ENABLE
1749 array_free (fork, EMPTY); 2437 array_free (fork, EMPTY);
1750#endif 2438#endif
2439#if EV_CLEANUP_ENABLE
2440 array_free (cleanup, EMPTY);
2441#endif
1751 array_free (prepare, EMPTY); 2442 array_free (prepare, EMPTY);
1752 array_free (check, EMPTY); 2443 array_free (check, EMPTY);
1753#if EV_ASYNC_ENABLE 2444#if EV_ASYNC_ENABLE
1754 array_free (async, EMPTY); 2445 array_free (async, EMPTY);
1755#endif 2446#endif
1756 2447
1757 backend = 0; 2448 backend = 0;
2449
2450#if EV_MULTIPLICITY
2451 if (ev_is_default_loop (EV_A))
2452#endif
2453 ev_default_loop_ptr = 0;
2454#if EV_MULTIPLICITY
2455 else
2456 ev_free (EV_A);
2457#endif
1758} 2458}
1759 2459
1760#if EV_USE_INOTIFY 2460#if EV_USE_INOTIFY
1761inline_size void infy_fork (EV_P); 2461inline_size void infy_fork (EV_P);
1762#endif 2462#endif
… …
1777 infy_fork (EV_A); 2477 infy_fork (EV_A);
1778#endif 2478#endif
1779 2479
1780 if (ev_is_active (&pipe_w)) 2480 if (ev_is_active (&pipe_w))
1781 { 2481 {
1782 /* this "locks" the handlers against writing to the pipe */ 2482 /* 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 2483
1789 ev_ref (EV_A); 2484 ev_ref (EV_A);
1790 ev_io_stop (EV_A_ &pipe_w); 2485 ev_io_stop (EV_A_ &pipe_w);
1791 2486
1792#if EV_USE_EVENTFD 2487#if EV_USE_EVENTFD
… …
1810 postfork = 0; 2505 postfork = 0;
1811} 2506}
1812 2507
1813#if EV_MULTIPLICITY 2508#if EV_MULTIPLICITY
1814 2509
1815struct ev_loop * 2510struct ev_loop * ecb_cold
1816ev_loop_new (unsigned int flags) 2511ev_loop_new (unsigned int flags) EV_THROW
1817{ 2512{
1818 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2513 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1819 2514
1820 memset (EV_A, 0, sizeof (struct ev_loop)); 2515 memset (EV_A, 0, sizeof (struct ev_loop));
1821 loop_init (EV_A_ flags); 2516 loop_init (EV_A_ flags);
1822 2517
1823 if (ev_backend (EV_A)) 2518 if (ev_backend (EV_A))
1824 return EV_A; 2519 return EV_A;
1825 2520
2521 ev_free (EV_A);
1826 return 0; 2522 return 0;
1827} 2523}
1828 2524
1829void
1830ev_loop_destroy (EV_P)
1831{
1832 loop_destroy (EV_A);
1833 ev_free (loop);
1834}
1835
1836void
1837ev_loop_fork (EV_P)
1838{
1839 postfork = 1; /* must be in line with ev_default_fork */
1840}
1841#endif /* multiplicity */ 2525#endif /* multiplicity */
1842 2526
1843#if EV_VERIFY 2527#if EV_VERIFY
1844static void noinline 2528static void noinline ecb_cold
1845verify_watcher (EV_P_ W w) 2529verify_watcher (EV_P_ W w)
1846{ 2530{
1847 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2531 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1848 2532
1849 if (w->pending) 2533 if (w->pending)
1850 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2534 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1851} 2535}
1852 2536
1853static void noinline 2537static void noinline ecb_cold
1854verify_heap (EV_P_ ANHE *heap, int N) 2538verify_heap (EV_P_ ANHE *heap, int N)
1855{ 2539{
1856 int i; 2540 int i;
1857 2541
1858 for (i = HEAP0; i < N + HEAP0; ++i) 2542 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1863 2547
1864 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2548 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1865 } 2549 }
1866} 2550}
1867 2551
1868static void noinline 2552static void noinline ecb_cold
1869array_verify (EV_P_ W *ws, int cnt) 2553array_verify (EV_P_ W *ws, int cnt)
1870{ 2554{
1871 while (cnt--) 2555 while (cnt--)
1872 { 2556 {
1873 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2557 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1874 verify_watcher (EV_A_ ws [cnt]); 2558 verify_watcher (EV_A_ ws [cnt]);
1875 } 2559 }
1876} 2560}
1877#endif 2561#endif
1878 2562
1879#if EV_MINIMAL < 2 2563#if EV_FEATURE_API
1880void 2564void ecb_cold
1881ev_loop_verify (EV_P) 2565ev_verify (EV_P) EV_THROW
1882{ 2566{
1883#if EV_VERIFY 2567#if EV_VERIFY
1884 int i; 2568 int i, j;
1885 WL w; 2569 WL w, w2;
1886 2570
1887 assert (activecnt >= -1); 2571 assert (activecnt >= -1);
1888 2572
1889 assert (fdchangemax >= fdchangecnt); 2573 assert (fdchangemax >= fdchangecnt);
1890 for (i = 0; i < fdchangecnt; ++i) 2574 for (i = 0; i < fdchangecnt; ++i)
1891 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2575 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1892 2576
1893 assert (anfdmax >= 0); 2577 assert (anfdmax >= 0);
1894 for (i = 0; i < anfdmax; ++i) 2578 for (i = j = 0; i < anfdmax; ++i)
1895 for (w = anfds [i].head; w; w = w->next) 2579 for (w = w2 = anfds [i].head; w; w = w->next)
1896 { 2580 {
1897 verify_watcher (EV_A_ (W)w); 2581 verify_watcher (EV_A_ (W)w);
2582
2583 if (j++ & 1)
2584 {
2585 assert (("libev: io watcher list contains a loop", w != w2));
2586 w2 = w2->next;
2587 }
2588
1898 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2589 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1899 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2590 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1900 } 2591 }
1901 2592
1902 assert (timermax >= timercnt); 2593 assert (timermax >= timercnt);
… …
1920#if EV_FORK_ENABLE 2611#if EV_FORK_ENABLE
1921 assert (forkmax >= forkcnt); 2612 assert (forkmax >= forkcnt);
1922 array_verify (EV_A_ (W *)forks, forkcnt); 2613 array_verify (EV_A_ (W *)forks, forkcnt);
1923#endif 2614#endif
1924 2615
2616#if EV_CLEANUP_ENABLE
2617 assert (cleanupmax >= cleanupcnt);
2618 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2619#endif
2620
1925#if EV_ASYNC_ENABLE 2621#if EV_ASYNC_ENABLE
1926 assert (asyncmax >= asynccnt); 2622 assert (asyncmax >= asynccnt);
1927 array_verify (EV_A_ (W *)asyncs, asynccnt); 2623 array_verify (EV_A_ (W *)asyncs, asynccnt);
1928#endif 2624#endif
1929 2625
… …
1937 array_verify (EV_A_ (W *)checks, checkcnt); 2633 array_verify (EV_A_ (W *)checks, checkcnt);
1938#endif 2634#endif
1939 2635
1940# if 0 2636# if 0
1941#if EV_CHILD_ENABLE 2637#if EV_CHILD_ENABLE
1942 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2638 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1943 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2639 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1944#endif 2640#endif
1945# endif 2641# endif
1946#endif 2642#endif
1947} 2643}
1948#endif 2644#endif
1949 2645
1950#if EV_MULTIPLICITY 2646#if EV_MULTIPLICITY
1951struct ev_loop * 2647struct ev_loop * ecb_cold
1952ev_default_loop_init (unsigned int flags)
1953#else 2648#else
1954int 2649int
2650#endif
1955ev_default_loop (unsigned int flags) 2651ev_default_loop (unsigned int flags) EV_THROW
1956#endif
1957{ 2652{
1958 if (!ev_default_loop_ptr) 2653 if (!ev_default_loop_ptr)
1959 { 2654 {
1960#if EV_MULTIPLICITY 2655#if EV_MULTIPLICITY
1961 EV_P = ev_default_loop_ptr = &default_loop_struct; 2656 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1980 2675
1981 return ev_default_loop_ptr; 2676 return ev_default_loop_ptr;
1982} 2677}
1983 2678
1984void 2679void
1985ev_default_destroy (void) 2680ev_loop_fork (EV_P) EV_THROW
1986{ 2681{
1987#if EV_MULTIPLICITY
1988 EV_P = ev_default_loop_ptr;
1989#endif
1990
1991 ev_default_loop_ptr = 0;
1992
1993#if EV_CHILD_ENABLE
1994 ev_ref (EV_A); /* child watcher */
1995 ev_signal_stop (EV_A_ &childev);
1996#endif
1997
1998 loop_destroy (EV_A);
1999}
2000
2001void
2002ev_default_fork (void)
2003{
2004#if EV_MULTIPLICITY
2005 EV_P = ev_default_loop_ptr;
2006#endif
2007
2008 postfork = 1; /* must be in line with ev_loop_fork */ 2682 postfork = 1; /* must be in line with ev_default_fork */
2009} 2683}
2010 2684
2011/*****************************************************************************/ 2685/*****************************************************************************/
2012 2686
2013void 2687void
… …
2015{ 2689{
2016 EV_CB_INVOKE ((W)w, revents); 2690 EV_CB_INVOKE ((W)w, revents);
2017} 2691}
2018 2692
2019unsigned int 2693unsigned int
2020ev_pending_count (EV_P) 2694ev_pending_count (EV_P) EV_THROW
2021{ 2695{
2022 int pri; 2696 int pri;
2023 unsigned int count = 0; 2697 unsigned int count = 0;
2024 2698
2025 for (pri = NUMPRI; pri--; ) 2699 for (pri = NUMPRI; pri--; )
… …
2029} 2703}
2030 2704
2031void noinline 2705void noinline
2032ev_invoke_pending (EV_P) 2706ev_invoke_pending (EV_P)
2033{ 2707{
2034 int pri; 2708 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2035
2036 for (pri = NUMPRI; pri--; )
2037 while (pendingcnt [pri]) 2709 while (pendingcnt [pendingpri])
2038 { 2710 {
2039 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2711 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2040
2041 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2042 /* ^ this is no longer true, as pending_w could be here */
2043 2712
2044 p->w->pending = 0; 2713 p->w->pending = 0;
2045 EV_CB_INVOKE (p->w, p->events); 2714 EV_CB_INVOKE (p->w, p->events);
2046 EV_FREQUENT_CHECK; 2715 EV_FREQUENT_CHECK;
2047 } 2716 }
… …
2104 EV_FREQUENT_CHECK; 2773 EV_FREQUENT_CHECK;
2105 feed_reverse (EV_A_ (W)w); 2774 feed_reverse (EV_A_ (W)w);
2106 } 2775 }
2107 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2776 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2108 2777
2109 feed_reverse_done (EV_A_ EV_TIMEOUT); 2778 feed_reverse_done (EV_A_ EV_TIMER);
2110 } 2779 }
2111} 2780}
2112 2781
2113#if EV_PERIODIC_ENABLE 2782#if EV_PERIODIC_ENABLE
2783
2784static void noinline
2785periodic_recalc (EV_P_ ev_periodic *w)
2786{
2787 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2788 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2789
2790 /* the above almost always errs on the low side */
2791 while (at <= ev_rt_now)
2792 {
2793 ev_tstamp nat = at + w->interval;
2794
2795 /* when resolution fails us, we use ev_rt_now */
2796 if (expect_false (nat == at))
2797 {
2798 at = ev_rt_now;
2799 break;
2800 }
2801
2802 at = nat;
2803 }
2804
2805 ev_at (w) = at;
2806}
2807
2114/* make periodics pending */ 2808/* make periodics pending */
2115inline_size void 2809inline_size void
2116periodics_reify (EV_P) 2810periodics_reify (EV_P)
2117{ 2811{
2118 EV_FREQUENT_CHECK; 2812 EV_FREQUENT_CHECK;
… …
2137 ANHE_at_cache (periodics [HEAP0]); 2831 ANHE_at_cache (periodics [HEAP0]);
2138 downheap (periodics, periodiccnt, HEAP0); 2832 downheap (periodics, periodiccnt, HEAP0);
2139 } 2833 }
2140 else if (w->interval) 2834 else if (w->interval)
2141 { 2835 {
2142 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2836 periodic_recalc (EV_A_ w);
2143 /* if next trigger time is not sufficiently in the future, put it there */
2144 /* this might happen because of floating point inexactness */
2145 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2146 {
2147 ev_at (w) += w->interval;
2148
2149 /* if interval is unreasonably low we might still have a time in the past */
2150 /* so correct this. this will make the periodic very inexact, but the user */
2151 /* has effectively asked to get triggered more often than possible */
2152 if (ev_at (w) < ev_rt_now)
2153 ev_at (w) = ev_rt_now;
2154 }
2155
2156 ANHE_at_cache (periodics [HEAP0]); 2837 ANHE_at_cache (periodics [HEAP0]);
2157 downheap (periodics, periodiccnt, HEAP0); 2838 downheap (periodics, periodiccnt, HEAP0);
2158 } 2839 }
2159 else 2840 else
2160 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2841 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2167 feed_reverse_done (EV_A_ EV_PERIODIC); 2848 feed_reverse_done (EV_A_ EV_PERIODIC);
2168 } 2849 }
2169} 2850}
2170 2851
2171/* simply recalculate all periodics */ 2852/* simply recalculate all periodics */
2172/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2853/* TODO: maybe ensure that at least one event happens when jumping forward? */
2173static void noinline 2854static void noinline ecb_cold
2174periodics_reschedule (EV_P) 2855periodics_reschedule (EV_P)
2175{ 2856{
2176 int i; 2857 int i;
2177 2858
2178 /* adjust periodics after time jump */ 2859 /* adjust periodics after time jump */
… …
2181 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2862 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2182 2863
2183 if (w->reschedule_cb) 2864 if (w->reschedule_cb)
2184 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2865 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2185 else if (w->interval) 2866 else if (w->interval)
2186 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2867 periodic_recalc (EV_A_ w);
2187 2868
2188 ANHE_at_cache (periodics [i]); 2869 ANHE_at_cache (periodics [i]);
2189 } 2870 }
2190 2871
2191 reheap (periodics, periodiccnt); 2872 reheap (periodics, periodiccnt);
2192} 2873}
2193#endif 2874#endif
2194 2875
2195/* adjust all timers by a given offset */ 2876/* adjust all timers by a given offset */
2196static void noinline 2877static void noinline ecb_cold
2197timers_reschedule (EV_P_ ev_tstamp adjust) 2878timers_reschedule (EV_P_ ev_tstamp adjust)
2198{ 2879{
2199 int i; 2880 int i;
2200 2881
2201 for (i = 0; i < timercnt; ++i) 2882 for (i = 0; i < timercnt; ++i)
… …
2238 * doesn't hurt either as we only do this on time-jumps or 2919 * doesn't hurt either as we only do this on time-jumps or
2239 * in the unlikely event of having been preempted here. 2920 * in the unlikely event of having been preempted here.
2240 */ 2921 */
2241 for (i = 4; --i; ) 2922 for (i = 4; --i; )
2242 { 2923 {
2924 ev_tstamp diff;
2243 rtmn_diff = ev_rt_now - mn_now; 2925 rtmn_diff = ev_rt_now - mn_now;
2244 2926
2927 diff = odiff - rtmn_diff;
2928
2245 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2929 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2246 return; /* all is well */ 2930 return; /* all is well */
2247 2931
2248 ev_rt_now = ev_time (); 2932 ev_rt_now = ev_time ();
2249 mn_now = get_clock (); 2933 mn_now = get_clock ();
2250 now_floor = mn_now; 2934 now_floor = mn_now;
… …
2272 2956
2273 mn_now = ev_rt_now; 2957 mn_now = ev_rt_now;
2274 } 2958 }
2275} 2959}
2276 2960
2277void 2961int
2278ev_loop (EV_P_ int flags) 2962ev_run (EV_P_ int flags)
2279{ 2963{
2280#if EV_MINIMAL < 2 2964#if EV_FEATURE_API
2281 ++loop_depth; 2965 ++loop_depth;
2282#endif 2966#endif
2283 2967
2284 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2968 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2285 2969
2286 loop_done = EVUNLOOP_CANCEL; 2970 loop_done = EVBREAK_CANCEL;
2287 2971
2288 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2972 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2289 2973
2290 do 2974 do
2291 { 2975 {
2292#if EV_VERIFY >= 2 2976#if EV_VERIFY >= 2
2293 ev_loop_verify (EV_A); 2977 ev_verify (EV_A);
2294#endif 2978#endif
2295 2979
2296#ifndef _WIN32 2980#ifndef _WIN32
2297 if (expect_false (curpid)) /* penalise the forking check even more */ 2981 if (expect_false (curpid)) /* penalise the forking check even more */
2298 if (expect_false (getpid () != curpid)) 2982 if (expect_false (getpid () != curpid))
… …
2334 /* calculate blocking time */ 3018 /* calculate blocking time */
2335 { 3019 {
2336 ev_tstamp waittime = 0.; 3020 ev_tstamp waittime = 0.;
2337 ev_tstamp sleeptime = 0.; 3021 ev_tstamp sleeptime = 0.;
2338 3022
3023 /* remember old timestamp for io_blocktime calculation */
3024 ev_tstamp prev_mn_now = mn_now;
3025
3026 /* update time to cancel out callback processing overhead */
3027 time_update (EV_A_ 1e100);
3028
3029 /* from now on, we want a pipe-wake-up */
3030 pipe_write_wanted = 1;
3031
3032 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3033
2339 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3034 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2340 { 3035 {
2341 /* remember old timestamp for io_blocktime calculation */
2342 ev_tstamp prev_mn_now = mn_now;
2343
2344 /* update time to cancel out callback processing overhead */
2345 time_update (EV_A_ 1e100);
2346
2347 waittime = MAX_BLOCKTIME; 3036 waittime = MAX_BLOCKTIME;
2348 3037
2349 if (timercnt) 3038 if (timercnt)
2350 { 3039 {
2351 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3040 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2352 if (waittime > to) waittime = to; 3041 if (waittime > to) waittime = to;
2353 } 3042 }
2354 3043
2355#if EV_PERIODIC_ENABLE 3044#if EV_PERIODIC_ENABLE
2356 if (periodiccnt) 3045 if (periodiccnt)
2357 { 3046 {
2358 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3047 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2359 if (waittime > to) waittime = to; 3048 if (waittime > to) waittime = to;
2360 } 3049 }
2361#endif 3050#endif
2362 3051
2363 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3052 /* don't let timeouts decrease the waittime below timeout_blocktime */
2364 if (expect_false (waittime < timeout_blocktime)) 3053 if (expect_false (waittime < timeout_blocktime))
2365 waittime = timeout_blocktime; 3054 waittime = timeout_blocktime;
3055
3056 /* at this point, we NEED to wait, so we have to ensure */
3057 /* to pass a minimum nonzero value to the backend */
3058 if (expect_false (waittime < backend_mintime))
3059 waittime = backend_mintime;
2366 3060
2367 /* extra check because io_blocktime is commonly 0 */ 3061 /* extra check because io_blocktime is commonly 0 */
2368 if (expect_false (io_blocktime)) 3062 if (expect_false (io_blocktime))
2369 { 3063 {
2370 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3064 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2371 3065
2372 if (sleeptime > waittime - backend_fudge) 3066 if (sleeptime > waittime - backend_mintime)
2373 sleeptime = waittime - backend_fudge; 3067 sleeptime = waittime - backend_mintime;
2374 3068
2375 if (expect_true (sleeptime > 0.)) 3069 if (expect_true (sleeptime > 0.))
2376 { 3070 {
2377 ev_sleep (sleeptime); 3071 ev_sleep (sleeptime);
2378 waittime -= sleeptime; 3072 waittime -= sleeptime;
2379 } 3073 }
2380 } 3074 }
2381 } 3075 }
2382 3076
2383#if EV_MINIMAL < 2 3077#if EV_FEATURE_API
2384 ++loop_count; 3078 ++loop_count;
2385#endif 3079#endif
2386 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3080 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2387 backend_poll (EV_A_ waittime); 3081 backend_poll (EV_A_ waittime);
2388 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3082 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3083
3084 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3085
3086 if (pipe_write_skipped)
3087 {
3088 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3089 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3090 }
3091
2389 3092
2390 /* update ev_rt_now, do magic */ 3093 /* update ev_rt_now, do magic */
2391 time_update (EV_A_ waittime + sleeptime); 3094 time_update (EV_A_ waittime + sleeptime);
2392 } 3095 }
2393 3096
… …
2411 EV_INVOKE_PENDING; 3114 EV_INVOKE_PENDING;
2412 } 3115 }
2413 while (expect_true ( 3116 while (expect_true (
2414 activecnt 3117 activecnt
2415 && !loop_done 3118 && !loop_done
2416 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3119 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2417 )); 3120 ));
2418 3121
2419 if (loop_done == EVUNLOOP_ONE) 3122 if (loop_done == EVBREAK_ONE)
2420 loop_done = EVUNLOOP_CANCEL; 3123 loop_done = EVBREAK_CANCEL;
2421 3124
2422#if EV_MINIMAL < 2 3125#if EV_FEATURE_API
2423 --loop_depth; 3126 --loop_depth;
2424#endif 3127#endif
3128
3129 return activecnt;
2425} 3130}
2426 3131
2427void 3132void
2428ev_unloop (EV_P_ int how) 3133ev_break (EV_P_ int how) EV_THROW
2429{ 3134{
2430 loop_done = how; 3135 loop_done = how;
2431} 3136}
2432 3137
2433void 3138void
2434ev_ref (EV_P) 3139ev_ref (EV_P) EV_THROW
2435{ 3140{
2436 ++activecnt; 3141 ++activecnt;
2437} 3142}
2438 3143
2439void 3144void
2440ev_unref (EV_P) 3145ev_unref (EV_P) EV_THROW
2441{ 3146{
2442 --activecnt; 3147 --activecnt;
2443} 3148}
2444 3149
2445void 3150void
2446ev_now_update (EV_P) 3151ev_now_update (EV_P) EV_THROW
2447{ 3152{
2448 time_update (EV_A_ 1e100); 3153 time_update (EV_A_ 1e100);
2449} 3154}
2450 3155
2451void 3156void
2452ev_suspend (EV_P) 3157ev_suspend (EV_P) EV_THROW
2453{ 3158{
2454 ev_now_update (EV_A); 3159 ev_now_update (EV_A);
2455} 3160}
2456 3161
2457void 3162void
2458ev_resume (EV_P) 3163ev_resume (EV_P) EV_THROW
2459{ 3164{
2460 ev_tstamp mn_prev = mn_now; 3165 ev_tstamp mn_prev = mn_now;
2461 3166
2462 ev_now_update (EV_A); 3167 ev_now_update (EV_A);
2463 timers_reschedule (EV_A_ mn_now - mn_prev); 3168 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2502 w->pending = 0; 3207 w->pending = 0;
2503 } 3208 }
2504} 3209}
2505 3210
2506int 3211int
2507ev_clear_pending (EV_P_ void *w) 3212ev_clear_pending (EV_P_ void *w) EV_THROW
2508{ 3213{
2509 W w_ = (W)w; 3214 W w_ = (W)w;
2510 int pending = w_->pending; 3215 int pending = w_->pending;
2511 3216
2512 if (expect_true (pending)) 3217 if (expect_true (pending))
… …
2545} 3250}
2546 3251
2547/*****************************************************************************/ 3252/*****************************************************************************/
2548 3253
2549void noinline 3254void noinline
2550ev_io_start (EV_P_ ev_io *w) 3255ev_io_start (EV_P_ ev_io *w) EV_THROW
2551{ 3256{
2552 int fd = w->fd; 3257 int fd = w->fd;
2553 3258
2554 if (expect_false (ev_is_active (w))) 3259 if (expect_false (ev_is_active (w)))
2555 return; 3260 return;
… …
2561 3266
2562 ev_start (EV_A_ (W)w, 1); 3267 ev_start (EV_A_ (W)w, 1);
2563 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3268 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2564 wlist_add (&anfds[fd].head, (WL)w); 3269 wlist_add (&anfds[fd].head, (WL)w);
2565 3270
3271 /* common bug, apparently */
3272 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3273
2566 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3274 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2567 w->events &= ~EV__IOFDSET; 3275 w->events &= ~EV__IOFDSET;
2568 3276
2569 EV_FREQUENT_CHECK; 3277 EV_FREQUENT_CHECK;
2570} 3278}
2571 3279
2572void noinline 3280void noinline
2573ev_io_stop (EV_P_ ev_io *w) 3281ev_io_stop (EV_P_ ev_io *w) EV_THROW
2574{ 3282{
2575 clear_pending (EV_A_ (W)w); 3283 clear_pending (EV_A_ (W)w);
2576 if (expect_false (!ev_is_active (w))) 3284 if (expect_false (!ev_is_active (w)))
2577 return; 3285 return;
2578 3286
… …
2581 EV_FREQUENT_CHECK; 3289 EV_FREQUENT_CHECK;
2582 3290
2583 wlist_del (&anfds[w->fd].head, (WL)w); 3291 wlist_del (&anfds[w->fd].head, (WL)w);
2584 ev_stop (EV_A_ (W)w); 3292 ev_stop (EV_A_ (W)w);
2585 3293
2586 fd_change (EV_A_ w->fd, 1); 3294 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2587 3295
2588 EV_FREQUENT_CHECK; 3296 EV_FREQUENT_CHECK;
2589} 3297}
2590 3298
2591void noinline 3299void noinline
2592ev_timer_start (EV_P_ ev_timer *w) 3300ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2593{ 3301{
2594 if (expect_false (ev_is_active (w))) 3302 if (expect_false (ev_is_active (w)))
2595 return; 3303 return;
2596 3304
2597 ev_at (w) += mn_now; 3305 ev_at (w) += mn_now;
… …
2611 3319
2612 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3320 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2613} 3321}
2614 3322
2615void noinline 3323void noinline
2616ev_timer_stop (EV_P_ ev_timer *w) 3324ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2617{ 3325{
2618 clear_pending (EV_A_ (W)w); 3326 clear_pending (EV_A_ (W)w);
2619 if (expect_false (!ev_is_active (w))) 3327 if (expect_false (!ev_is_active (w)))
2620 return; 3328 return;
2621 3329
… …
2641 3349
2642 EV_FREQUENT_CHECK; 3350 EV_FREQUENT_CHECK;
2643} 3351}
2644 3352
2645void noinline 3353void noinline
2646ev_timer_again (EV_P_ ev_timer *w) 3354ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2647{ 3355{
2648 EV_FREQUENT_CHECK; 3356 EV_FREQUENT_CHECK;
3357
3358 clear_pending (EV_A_ (W)w);
2649 3359
2650 if (ev_is_active (w)) 3360 if (ev_is_active (w))
2651 { 3361 {
2652 if (w->repeat) 3362 if (w->repeat)
2653 { 3363 {
… …
2666 3376
2667 EV_FREQUENT_CHECK; 3377 EV_FREQUENT_CHECK;
2668} 3378}
2669 3379
2670ev_tstamp 3380ev_tstamp
2671ev_timer_remaining (EV_P_ ev_timer *w) 3381ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2672{ 3382{
2673 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3383 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2674} 3384}
2675 3385
2676#if EV_PERIODIC_ENABLE 3386#if EV_PERIODIC_ENABLE
2677void noinline 3387void noinline
2678ev_periodic_start (EV_P_ ev_periodic *w) 3388ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2679{ 3389{
2680 if (expect_false (ev_is_active (w))) 3390 if (expect_false (ev_is_active (w)))
2681 return; 3391 return;
2682 3392
2683 if (w->reschedule_cb) 3393 if (w->reschedule_cb)
2684 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3394 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2685 else if (w->interval) 3395 else if (w->interval)
2686 { 3396 {
2687 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3397 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2688 /* this formula differs from the one in periodic_reify because we do not always round up */ 3398 periodic_recalc (EV_A_ w);
2689 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2690 } 3399 }
2691 else 3400 else
2692 ev_at (w) = w->offset; 3401 ev_at (w) = w->offset;
2693 3402
2694 EV_FREQUENT_CHECK; 3403 EV_FREQUENT_CHECK;
… …
2704 3413
2705 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3414 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2706} 3415}
2707 3416
2708void noinline 3417void noinline
2709ev_periodic_stop (EV_P_ ev_periodic *w) 3418ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2710{ 3419{
2711 clear_pending (EV_A_ (W)w); 3420 clear_pending (EV_A_ (W)w);
2712 if (expect_false (!ev_is_active (w))) 3421 if (expect_false (!ev_is_active (w)))
2713 return; 3422 return;
2714 3423
… …
2732 3441
2733 EV_FREQUENT_CHECK; 3442 EV_FREQUENT_CHECK;
2734} 3443}
2735 3444
2736void noinline 3445void noinline
2737ev_periodic_again (EV_P_ ev_periodic *w) 3446ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2738{ 3447{
2739 /* TODO: use adjustheap and recalculation */ 3448 /* TODO: use adjustheap and recalculation */
2740 ev_periodic_stop (EV_A_ w); 3449 ev_periodic_stop (EV_A_ w);
2741 ev_periodic_start (EV_A_ w); 3450 ev_periodic_start (EV_A_ w);
2742} 3451}
… …
2747#endif 3456#endif
2748 3457
2749#if EV_SIGNAL_ENABLE 3458#if EV_SIGNAL_ENABLE
2750 3459
2751void noinline 3460void noinline
2752ev_signal_start (EV_P_ ev_signal *w) 3461ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2753{ 3462{
2754 if (expect_false (ev_is_active (w))) 3463 if (expect_false (ev_is_active (w)))
2755 return; 3464 return;
2756 3465
2757 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3466 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2815 sa.sa_handler = ev_sighandler; 3524 sa.sa_handler = ev_sighandler;
2816 sigfillset (&sa.sa_mask); 3525 sigfillset (&sa.sa_mask);
2817 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3526 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2818 sigaction (w->signum, &sa, 0); 3527 sigaction (w->signum, &sa, 0);
2819 3528
3529 if (origflags & EVFLAG_NOSIGMASK)
3530 {
2820 sigemptyset (&sa.sa_mask); 3531 sigemptyset (&sa.sa_mask);
2821 sigaddset (&sa.sa_mask, w->signum); 3532 sigaddset (&sa.sa_mask, w->signum);
2822 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3533 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3534 }
2823#endif 3535#endif
2824 } 3536 }
2825 3537
2826 EV_FREQUENT_CHECK; 3538 EV_FREQUENT_CHECK;
2827} 3539}
2828 3540
2829void noinline 3541void noinline
2830ev_signal_stop (EV_P_ ev_signal *w) 3542ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2831{ 3543{
2832 clear_pending (EV_A_ (W)w); 3544 clear_pending (EV_A_ (W)w);
2833 if (expect_false (!ev_is_active (w))) 3545 if (expect_false (!ev_is_active (w)))
2834 return; 3546 return;
2835 3547
… …
2866#endif 3578#endif
2867 3579
2868#if EV_CHILD_ENABLE 3580#if EV_CHILD_ENABLE
2869 3581
2870void 3582void
2871ev_child_start (EV_P_ ev_child *w) 3583ev_child_start (EV_P_ ev_child *w) EV_THROW
2872{ 3584{
2873#if EV_MULTIPLICITY 3585#if EV_MULTIPLICITY
2874 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3586 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2875#endif 3587#endif
2876 if (expect_false (ev_is_active (w))) 3588 if (expect_false (ev_is_active (w)))
2877 return; 3589 return;
2878 3590
2879 EV_FREQUENT_CHECK; 3591 EV_FREQUENT_CHECK;
2880 3592
2881 ev_start (EV_A_ (W)w, 1); 3593 ev_start (EV_A_ (W)w, 1);
2882 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3594 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2883 3595
2884 EV_FREQUENT_CHECK; 3596 EV_FREQUENT_CHECK;
2885} 3597}
2886 3598
2887void 3599void
2888ev_child_stop (EV_P_ ev_child *w) 3600ev_child_stop (EV_P_ ev_child *w) EV_THROW
2889{ 3601{
2890 clear_pending (EV_A_ (W)w); 3602 clear_pending (EV_A_ (W)w);
2891 if (expect_false (!ev_is_active (w))) 3603 if (expect_false (!ev_is_active (w)))
2892 return; 3604 return;
2893 3605
2894 EV_FREQUENT_CHECK; 3606 EV_FREQUENT_CHECK;
2895 3607
2896 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3608 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2897 ev_stop (EV_A_ (W)w); 3609 ev_stop (EV_A_ (W)w);
2898 3610
2899 EV_FREQUENT_CHECK; 3611 EV_FREQUENT_CHECK;
2900} 3612}
2901 3613
… …
2968 if (!pend || pend == path) 3680 if (!pend || pend == path)
2969 break; 3681 break;
2970 3682
2971 *pend = 0; 3683 *pend = 0;
2972 w->wd = inotify_add_watch (fs_fd, path, mask); 3684 w->wd = inotify_add_watch (fs_fd, path, mask);
2973 } 3685 }
2974 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3686 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2975 } 3687 }
2976 } 3688 }
2977 3689
2978 if (w->wd >= 0) 3690 if (w->wd >= 0)
2979 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3691 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2980 3692
2981 /* now re-arm timer, if required */ 3693 /* now re-arm timer, if required */
2982 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3694 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2983 ev_timer_again (EV_A_ &w->timer); 3695 ev_timer_again (EV_A_ &w->timer);
2984 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3696 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2992 3704
2993 if (wd < 0) 3705 if (wd < 0)
2994 return; 3706 return;
2995 3707
2996 w->wd = -2; 3708 w->wd = -2;
2997 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3709 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2998 wlist_del (&fs_hash [slot].head, (WL)w); 3710 wlist_del (&fs_hash [slot].head, (WL)w);
2999 3711
3000 /* remove this watcher, if others are watching it, they will rearm */ 3712 /* remove this watcher, if others are watching it, they will rearm */
3001 inotify_rm_watch (fs_fd, wd); 3713 inotify_rm_watch (fs_fd, wd);
3002} 3714}
… …
3004static void noinline 3716static void noinline
3005infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3717infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3006{ 3718{
3007 if (slot < 0) 3719 if (slot < 0)
3008 /* overflow, need to check for all hash slots */ 3720 /* overflow, need to check for all hash slots */
3009 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3721 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3010 infy_wd (EV_A_ slot, wd, ev); 3722 infy_wd (EV_A_ slot, wd, ev);
3011 else 3723 else
3012 { 3724 {
3013 WL w_; 3725 WL w_;
3014 3726
3015 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3727 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
3016 { 3728 {
3017 ev_stat *w = (ev_stat *)w_; 3729 ev_stat *w = (ev_stat *)w_;
3018 w_ = w_->next; /* lets us remove this watcher and all before it */ 3730 w_ = w_->next; /* lets us remove this watcher and all before it */
3019 3731
3020 if (w->wd == wd || wd == -1) 3732 if (w->wd == wd || wd == -1)
3021 { 3733 {
3022 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3734 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
3023 { 3735 {
3024 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3736 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
3025 w->wd = -1; 3737 w->wd = -1;
3026 infy_add (EV_A_ w); /* re-add, no matter what */ 3738 infy_add (EV_A_ w); /* re-add, no matter what */
3027 } 3739 }
3028 3740
3029 stat_timer_cb (EV_A_ &w->timer, 0); 3741 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3045 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3757 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3046 ofs += sizeof (struct inotify_event) + ev->len; 3758 ofs += sizeof (struct inotify_event) + ev->len;
3047 } 3759 }
3048} 3760}
3049 3761
3050inline_size unsigned int
3051ev_linux_version (void)
3052{
3053 struct utsname buf;
3054 unsigned int v;
3055 int i;
3056 char *p = buf.release;
3057
3058 if (uname (&buf))
3059 return 0;
3060
3061 for (i = 3+1; --i; )
3062 {
3063 unsigned int c = 0;
3064
3065 for (;;)
3066 {
3067 if (*p >= '0' && *p <= '9')
3068 c = c * 10 + *p++ - '0';
3069 else
3070 {
3071 p += *p == '.';
3072 break;
3073 }
3074 }
3075
3076 v = (v << 8) | c;
3077 }
3078
3079 return v;
3080}
3081
3082inline_size void 3762inline_size void ecb_cold
3083ev_check_2625 (EV_P) 3763ev_check_2625 (EV_P)
3084{ 3764{
3085 /* kernels < 2.6.25 are borked 3765 /* kernels < 2.6.25 are borked
3086 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3766 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3087 */ 3767 */
… …
3092} 3772}
3093 3773
3094inline_size int 3774inline_size int
3095infy_newfd (void) 3775infy_newfd (void)
3096{ 3776{
3097#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3777#if defined IN_CLOEXEC && defined IN_NONBLOCK
3098 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3778 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3099 if (fd >= 0) 3779 if (fd >= 0)
3100 return fd; 3780 return fd;
3101#endif 3781#endif
3102 return inotify_init (); 3782 return inotify_init ();
… …
3143 ev_io_set (&fs_w, fs_fd, EV_READ); 3823 ev_io_set (&fs_w, fs_fd, EV_READ);
3144 ev_io_start (EV_A_ &fs_w); 3824 ev_io_start (EV_A_ &fs_w);
3145 ev_unref (EV_A); 3825 ev_unref (EV_A);
3146 } 3826 }
3147 3827
3148 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3828 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3149 { 3829 {
3150 WL w_ = fs_hash [slot].head; 3830 WL w_ = fs_hash [slot].head;
3151 fs_hash [slot].head = 0; 3831 fs_hash [slot].head = 0;
3152 3832
3153 while (w_) 3833 while (w_)
… …
3177#else 3857#else
3178# define EV_LSTAT(p,b) lstat (p, b) 3858# define EV_LSTAT(p,b) lstat (p, b)
3179#endif 3859#endif
3180 3860
3181void 3861void
3182ev_stat_stat (EV_P_ ev_stat *w) 3862ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3183{ 3863{
3184 if (lstat (w->path, &w->attr) < 0) 3864 if (lstat (w->path, &w->attr) < 0)
3185 w->attr.st_nlink = 0; 3865 w->attr.st_nlink = 0;
3186 else if (!w->attr.st_nlink) 3866 else if (!w->attr.st_nlink)
3187 w->attr.st_nlink = 1; 3867 w->attr.st_nlink = 1;
… …
3226 ev_feed_event (EV_A_ w, EV_STAT); 3906 ev_feed_event (EV_A_ w, EV_STAT);
3227 } 3907 }
3228} 3908}
3229 3909
3230void 3910void
3231ev_stat_start (EV_P_ ev_stat *w) 3911ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3232{ 3912{
3233 if (expect_false (ev_is_active (w))) 3913 if (expect_false (ev_is_active (w)))
3234 return; 3914 return;
3235 3915
3236 ev_stat_stat (EV_A_ w); 3916 ev_stat_stat (EV_A_ w);
… …
3257 3937
3258 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
3259} 3939}
3260 3940
3261void 3941void
3262ev_stat_stop (EV_P_ ev_stat *w) 3942ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3263{ 3943{
3264 clear_pending (EV_A_ (W)w); 3944 clear_pending (EV_A_ (W)w);
3265 if (expect_false (!ev_is_active (w))) 3945 if (expect_false (!ev_is_active (w)))
3266 return; 3946 return;
3267 3947
… …
3283} 3963}
3284#endif 3964#endif
3285 3965
3286#if EV_IDLE_ENABLE 3966#if EV_IDLE_ENABLE
3287void 3967void
3288ev_idle_start (EV_P_ ev_idle *w) 3968ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3289{ 3969{
3290 if (expect_false (ev_is_active (w))) 3970 if (expect_false (ev_is_active (w)))
3291 return; 3971 return;
3292 3972
3293 pri_adjust (EV_A_ (W)w); 3973 pri_adjust (EV_A_ (W)w);
… …
3306 3986
3307 EV_FREQUENT_CHECK; 3987 EV_FREQUENT_CHECK;
3308} 3988}
3309 3989
3310void 3990void
3311ev_idle_stop (EV_P_ ev_idle *w) 3991ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3312{ 3992{
3313 clear_pending (EV_A_ (W)w); 3993 clear_pending (EV_A_ (W)w);
3314 if (expect_false (!ev_is_active (w))) 3994 if (expect_false (!ev_is_active (w)))
3315 return; 3995 return;
3316 3996
… …
3330} 4010}
3331#endif 4011#endif
3332 4012
3333#if EV_PREPARE_ENABLE 4013#if EV_PREPARE_ENABLE
3334void 4014void
3335ev_prepare_start (EV_P_ ev_prepare *w) 4015ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3336{ 4016{
3337 if (expect_false (ev_is_active (w))) 4017 if (expect_false (ev_is_active (w)))
3338 return; 4018 return;
3339 4019
3340 EV_FREQUENT_CHECK; 4020 EV_FREQUENT_CHECK;
… …
3345 4025
3346 EV_FREQUENT_CHECK; 4026 EV_FREQUENT_CHECK;
3347} 4027}
3348 4028
3349void 4029void
3350ev_prepare_stop (EV_P_ ev_prepare *w) 4030ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3351{ 4031{
3352 clear_pending (EV_A_ (W)w); 4032 clear_pending (EV_A_ (W)w);
3353 if (expect_false (!ev_is_active (w))) 4033 if (expect_false (!ev_is_active (w)))
3354 return; 4034 return;
3355 4035
… …
3368} 4048}
3369#endif 4049#endif
3370 4050
3371#if EV_CHECK_ENABLE 4051#if EV_CHECK_ENABLE
3372void 4052void
3373ev_check_start (EV_P_ ev_check *w) 4053ev_check_start (EV_P_ ev_check *w) EV_THROW
3374{ 4054{
3375 if (expect_false (ev_is_active (w))) 4055 if (expect_false (ev_is_active (w)))
3376 return; 4056 return;
3377 4057
3378 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
… …
3383 4063
3384 EV_FREQUENT_CHECK; 4064 EV_FREQUENT_CHECK;
3385} 4065}
3386 4066
3387void 4067void
3388ev_check_stop (EV_P_ ev_check *w) 4068ev_check_stop (EV_P_ ev_check *w) EV_THROW
3389{ 4069{
3390 clear_pending (EV_A_ (W)w); 4070 clear_pending (EV_A_ (W)w);
3391 if (expect_false (!ev_is_active (w))) 4071 if (expect_false (!ev_is_active (w)))
3392 return; 4072 return;
3393 4073
… …
3406} 4086}
3407#endif 4087#endif
3408 4088
3409#if EV_EMBED_ENABLE 4089#if EV_EMBED_ENABLE
3410void noinline 4090void noinline
3411ev_embed_sweep (EV_P_ ev_embed *w) 4091ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3412{ 4092{
3413 ev_loop (w->other, EVLOOP_NONBLOCK); 4093 ev_run (w->other, EVRUN_NOWAIT);
3414} 4094}
3415 4095
3416static void 4096static void
3417embed_io_cb (EV_P_ ev_io *io, int revents) 4097embed_io_cb (EV_P_ ev_io *io, int revents)
3418{ 4098{
3419 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4099 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3420 4100
3421 if (ev_cb (w)) 4101 if (ev_cb (w))
3422 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4102 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3423 else 4103 else
3424 ev_loop (w->other, EVLOOP_NONBLOCK); 4104 ev_run (w->other, EVRUN_NOWAIT);
3425} 4105}
3426 4106
3427static void 4107static void
3428embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4108embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3429{ 4109{
… …
3433 EV_P = w->other; 4113 EV_P = w->other;
3434 4114
3435 while (fdchangecnt) 4115 while (fdchangecnt)
3436 { 4116 {
3437 fd_reify (EV_A); 4117 fd_reify (EV_A);
3438 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4118 ev_run (EV_A_ EVRUN_NOWAIT);
3439 } 4119 }
3440 } 4120 }
3441} 4121}
3442 4122
3443static void 4123static void
… …
3449 4129
3450 { 4130 {
3451 EV_P = w->other; 4131 EV_P = w->other;
3452 4132
3453 ev_loop_fork (EV_A); 4133 ev_loop_fork (EV_A);
3454 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4134 ev_run (EV_A_ EVRUN_NOWAIT);
3455 } 4135 }
3456 4136
3457 ev_embed_start (EV_A_ w); 4137 ev_embed_start (EV_A_ w);
3458} 4138}
3459 4139
… …
3464 ev_idle_stop (EV_A_ idle); 4144 ev_idle_stop (EV_A_ idle);
3465} 4145}
3466#endif 4146#endif
3467 4147
3468void 4148void
3469ev_embed_start (EV_P_ ev_embed *w) 4149ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3470{ 4150{
3471 if (expect_false (ev_is_active (w))) 4151 if (expect_false (ev_is_active (w)))
3472 return; 4152 return;
3473 4153
3474 { 4154 {
… …
3495 4175
3496 EV_FREQUENT_CHECK; 4176 EV_FREQUENT_CHECK;
3497} 4177}
3498 4178
3499void 4179void
3500ev_embed_stop (EV_P_ ev_embed *w) 4180ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3501{ 4181{
3502 clear_pending (EV_A_ (W)w); 4182 clear_pending (EV_A_ (W)w);
3503 if (expect_false (!ev_is_active (w))) 4183 if (expect_false (!ev_is_active (w)))
3504 return; 4184 return;
3505 4185
… …
3515} 4195}
3516#endif 4196#endif
3517 4197
3518#if EV_FORK_ENABLE 4198#if EV_FORK_ENABLE
3519void 4199void
3520ev_fork_start (EV_P_ ev_fork *w) 4200ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3521{ 4201{
3522 if (expect_false (ev_is_active (w))) 4202 if (expect_false (ev_is_active (w)))
3523 return; 4203 return;
3524 4204
3525 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
… …
3530 4210
3531 EV_FREQUENT_CHECK; 4211 EV_FREQUENT_CHECK;
3532} 4212}
3533 4213
3534void 4214void
3535ev_fork_stop (EV_P_ ev_fork *w) 4215ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3536{ 4216{
3537 clear_pending (EV_A_ (W)w); 4217 clear_pending (EV_A_ (W)w);
3538 if (expect_false (!ev_is_active (w))) 4218 if (expect_false (!ev_is_active (w)))
3539 return; 4219 return;
3540 4220
… …
3551 4231
3552 EV_FREQUENT_CHECK; 4232 EV_FREQUENT_CHECK;
3553} 4233}
3554#endif 4234#endif
3555 4235
4236#if EV_CLEANUP_ENABLE
4237void
4238ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4239{
4240 if (expect_false (ev_is_active (w)))
4241 return;
4242
4243 EV_FREQUENT_CHECK;
4244
4245 ev_start (EV_A_ (W)w, ++cleanupcnt);
4246 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4247 cleanups [cleanupcnt - 1] = w;
4248
4249 /* cleanup watchers should never keep a refcount on the loop */
4250 ev_unref (EV_A);
4251 EV_FREQUENT_CHECK;
4252}
4253
4254void
4255ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4256{
4257 clear_pending (EV_A_ (W)w);
4258 if (expect_false (!ev_is_active (w)))
4259 return;
4260
4261 EV_FREQUENT_CHECK;
4262 ev_ref (EV_A);
4263
4264 {
4265 int active = ev_active (w);
4266
4267 cleanups [active - 1] = cleanups [--cleanupcnt];
4268 ev_active (cleanups [active - 1]) = active;
4269 }
4270
4271 ev_stop (EV_A_ (W)w);
4272
4273 EV_FREQUENT_CHECK;
4274}
4275#endif
4276
3556#if EV_ASYNC_ENABLE 4277#if EV_ASYNC_ENABLE
3557void 4278void
3558ev_async_start (EV_P_ ev_async *w) 4279ev_async_start (EV_P_ ev_async *w) EV_THROW
3559{ 4280{
3560 if (expect_false (ev_is_active (w))) 4281 if (expect_false (ev_is_active (w)))
3561 return; 4282 return;
4283
4284 w->sent = 0;
3562 4285
3563 evpipe_init (EV_A); 4286 evpipe_init (EV_A);
3564 4287
3565 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3566 4289
… …
3570 4293
3571 EV_FREQUENT_CHECK; 4294 EV_FREQUENT_CHECK;
3572} 4295}
3573 4296
3574void 4297void
3575ev_async_stop (EV_P_ ev_async *w) 4298ev_async_stop (EV_P_ ev_async *w) EV_THROW
3576{ 4299{
3577 clear_pending (EV_A_ (W)w); 4300 clear_pending (EV_A_ (W)w);
3578 if (expect_false (!ev_is_active (w))) 4301 if (expect_false (!ev_is_active (w)))
3579 return; 4302 return;
3580 4303
… …
3591 4314
3592 EV_FREQUENT_CHECK; 4315 EV_FREQUENT_CHECK;
3593} 4316}
3594 4317
3595void 4318void
3596ev_async_send (EV_P_ ev_async *w) 4319ev_async_send (EV_P_ ev_async *w) EV_THROW
3597{ 4320{
3598 w->sent = 1; 4321 w->sent = 1;
3599 evpipe_write (EV_A_ &async_pending); 4322 evpipe_write (EV_A_ &async_pending);
3600} 4323}
3601#endif 4324#endif
… …
3638 4361
3639 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4362 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3640} 4363}
3641 4364
3642void 4365void
3643ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4366ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3644{ 4367{
3645 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4368 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3646 4369
3647 if (expect_false (!once)) 4370 if (expect_false (!once))
3648 { 4371 {
3649 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4372 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3650 return; 4373 return;
3651 } 4374 }
3652 4375
3653 once->cb = cb; 4376 once->cb = cb;
3654 once->arg = arg; 4377 once->arg = arg;
… …
3669} 4392}
3670 4393
3671/*****************************************************************************/ 4394/*****************************************************************************/
3672 4395
3673#if EV_WALK_ENABLE 4396#if EV_WALK_ENABLE
3674void 4397void ecb_cold
3675ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4398ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3676{ 4399{
3677 int i, j; 4400 int i, j;
3678 ev_watcher_list *wl, *wn; 4401 ev_watcher_list *wl, *wn;
3679 4402
3680 if (types & (EV_IO | EV_EMBED)) 4403 if (types & (EV_IO | EV_EMBED))
… …
3723 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4446 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3724#endif 4447#endif
3725 4448
3726#if EV_IDLE_ENABLE 4449#if EV_IDLE_ENABLE
3727 if (types & EV_IDLE) 4450 if (types & EV_IDLE)
3728 for (j = NUMPRI; i--; ) 4451 for (j = NUMPRI; j--; )
3729 for (i = idlecnt [j]; i--; ) 4452 for (i = idlecnt [j]; i--; )
3730 cb (EV_A_ EV_IDLE, idles [j][i]); 4453 cb (EV_A_ EV_IDLE, idles [j][i]);
3731#endif 4454#endif
3732 4455
3733#if EV_FORK_ENABLE 4456#if EV_FORK_ENABLE
… …
3769 } 4492 }
3770#endif 4493#endif
3771 4494
3772#if EV_CHILD_ENABLE 4495#if EV_CHILD_ENABLE
3773 if (types & EV_CHILD) 4496 if (types & EV_CHILD)
3774 for (i = EV_PID_HASHSIZE; i--; ) 4497 for (i = (EV_PID_HASHSIZE); i--; )
3775 for (wl = childs [i]; wl; ) 4498 for (wl = childs [i]; wl; )
3776 { 4499 {
3777 wn = wl->next; 4500 wn = wl->next;
3778 cb (EV_A_ EV_CHILD, wl); 4501 cb (EV_A_ EV_CHILD, wl);
3779 wl = wn; 4502 wl = wn;
… …
3786 4509
3787#if EV_MULTIPLICITY 4510#if EV_MULTIPLICITY
3788 #include "ev_wrap.h" 4511 #include "ev_wrap.h"
3789#endif 4512#endif
3790 4513
3791#ifdef __cplusplus
3792}
3793#endif
3794

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