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Comparing libev/ev.c (file contents):
Revision 1.325 by root, Sun Jan 24 12:31:55 2010 UTC vs.
Revision 1.436 by root, Tue May 29 20:44:39 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 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
… …
163 173
164#include <assert.h> 174#include <assert.h>
165#include <errno.h> 175#include <errno.h>
166#include <sys/types.h> 176#include <sys/types.h>
167#include <time.h> 177#include <time.h>
178#include <limits.h>
168 179
169#include <signal.h> 180#include <signal.h>
170 181
171#ifdef EV_H 182#ifdef EV_H
172# include EV_H 183# include EV_H
173#else 184#else
174# 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
175#endif 197#endif
176 198
177#ifndef _WIN32 199#ifndef _WIN32
178# include <sys/time.h> 200# include <sys/time.h>
179# include <sys/wait.h> 201# include <sys/wait.h>
180# include <unistd.h> 202# include <unistd.h>
181#else 203#else
182# include <io.h> 204# include <io.h>
183# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
184# include <windows.h> 207# include <windows.h>
185# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
186# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
187# endif 210# endif
211# undef EV_AVOID_STDIO
188#endif 212#endif
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
189 221
190/* 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 */
191 223
192/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
193#if defined (EV_NSIG) 225#if defined EV_NSIG
194/* use what's provided */ 226/* use what's provided */
195#elif defined (NSIG) 227#elif defined NSIG
196# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
197#elif defined(_NSIG) 229#elif defined _NSIG
198# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
199#elif defined (SIGMAX) 231#elif defined SIGMAX
200# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
201#elif defined (SIG_MAX) 233#elif defined SIG_MAX
202# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
203#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
204# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
205#elif defined (MAXSIG) 237#elif defined MAXSIG
206# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
207#elif defined (MAX_SIG) 239#elif defined MAX_SIG
208# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
209#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
210# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
211#elif defined (_sys_nsig) 243#elif defined _sys_nsig
212# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
213#else 245#else
214# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
215/* to make it compile regardless, just remove the above line */ 247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
216# define EV_NSIG 65 249# define EV_NSIG 65
250#endif
251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
217#endif 254#endif
218 255
219#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
220# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
221# define EV_USE_CLOCK_SYSCALL 1 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
222# else 259# else
223# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
224# endif 261# endif
225#endif 262#endif
226 263
227#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
228# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
229# define EV_USE_MONOTONIC 1 266# define EV_USE_MONOTONIC EV_FEATURE_OS
230# else 267# else
231# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
232# endif 269# endif
233#endif 270#endif
234 271
… …
236# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 273# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
237#endif 274#endif
238 275
239#ifndef EV_USE_NANOSLEEP 276#ifndef EV_USE_NANOSLEEP
240# if _POSIX_C_SOURCE >= 199309L 277# if _POSIX_C_SOURCE >= 199309L
241# define EV_USE_NANOSLEEP 1 278# define EV_USE_NANOSLEEP EV_FEATURE_OS
242# else 279# else
243# define EV_USE_NANOSLEEP 0 280# define EV_USE_NANOSLEEP 0
244# endif 281# endif
245#endif 282#endif
246 283
247#ifndef EV_USE_SELECT 284#ifndef EV_USE_SELECT
248# define EV_USE_SELECT 1 285# define EV_USE_SELECT EV_FEATURE_BACKENDS
249#endif 286#endif
250 287
251#ifndef EV_USE_POLL 288#ifndef EV_USE_POLL
252# ifdef _WIN32 289# ifdef _WIN32
253# define EV_USE_POLL 0 290# define EV_USE_POLL 0
254# else 291# else
255# define EV_USE_POLL 1 292# define EV_USE_POLL EV_FEATURE_BACKENDS
256# endif 293# endif
257#endif 294#endif
258 295
259#ifndef EV_USE_EPOLL 296#ifndef EV_USE_EPOLL
260# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 297# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
261# define EV_USE_EPOLL 1 298# define EV_USE_EPOLL EV_FEATURE_BACKENDS
262# else 299# else
263# define EV_USE_EPOLL 0 300# define EV_USE_EPOLL 0
264# endif 301# endif
265#endif 302#endif
266 303
… …
272# define EV_USE_PORT 0 309# define EV_USE_PORT 0
273#endif 310#endif
274 311
275#ifndef EV_USE_INOTIFY 312#ifndef EV_USE_INOTIFY
276# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
277# define EV_USE_INOTIFY 1 314# define EV_USE_INOTIFY EV_FEATURE_OS
278# else 315# else
279# define EV_USE_INOTIFY 0 316# define EV_USE_INOTIFY 0
280# endif 317# endif
281#endif 318#endif
282 319
283#ifndef EV_PID_HASHSIZE 320#ifndef EV_PID_HASHSIZE
284# if EV_MINIMAL 321# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
285# define EV_PID_HASHSIZE 1
286# else
287# define EV_PID_HASHSIZE 16
288# endif
289#endif 322#endif
290 323
291#ifndef EV_INOTIFY_HASHSIZE 324#ifndef EV_INOTIFY_HASHSIZE
292# if EV_MINIMAL 325# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
293# define EV_INOTIFY_HASHSIZE 1
294# else
295# define EV_INOTIFY_HASHSIZE 16
296# endif
297#endif 326#endif
298 327
299#ifndef EV_USE_EVENTFD 328#ifndef EV_USE_EVENTFD
300# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 329# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
301# define EV_USE_EVENTFD 1 330# define EV_USE_EVENTFD EV_FEATURE_OS
302# else 331# else
303# define EV_USE_EVENTFD 0 332# define EV_USE_EVENTFD 0
304# endif 333# endif
305#endif 334#endif
306 335
307#ifndef EV_USE_SIGNALFD 336#ifndef EV_USE_SIGNALFD
308# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 337# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
309# define EV_USE_SIGNALFD 1 338# define EV_USE_SIGNALFD EV_FEATURE_OS
310# else 339# else
311# define EV_USE_SIGNALFD 0 340# define EV_USE_SIGNALFD 0
312# endif 341# endif
313#endif 342#endif
314 343
… …
317# define EV_USE_4HEAP 1 346# define EV_USE_4HEAP 1
318# define EV_HEAP_CACHE_AT 1 347# define EV_HEAP_CACHE_AT 1
319#endif 348#endif
320 349
321#ifndef EV_VERIFY 350#ifndef EV_VERIFY
322# define EV_VERIFY !EV_MINIMAL 351# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
323#endif 352#endif
324 353
325#ifndef EV_USE_4HEAP 354#ifndef EV_USE_4HEAP
326# define EV_USE_4HEAP !EV_MINIMAL 355# define EV_USE_4HEAP EV_FEATURE_DATA
327#endif 356#endif
328 357
329#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
330# define EV_HEAP_CACHE_AT !EV_MINIMAL 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
331#endif 360#endif
332 361
333/* 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, */
334/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
335#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
336# include <syscall.h> 365# include <sys/syscall.h>
337# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
338# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
339# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
340# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
341# else 370# else
… …
366# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
367# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
368#endif 397#endif
369 398
370#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
371# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
372# include <sys/select.h> 402# include <sys/select.h>
373# endif 403# endif
374#endif 404#endif
375 405
376#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
377# include <sys/utsname.h>
378# include <sys/statfs.h> 407# include <sys/statfs.h>
379# include <sys/inotify.h> 408# include <sys/inotify.h>
380/* 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 */
381# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
382# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
383# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
384# endif 413# endif
385#endif
386
387#if EV_SELECT_IS_WINSOCKET
388# include <winsock.h>
389#endif 414#endif
390 415
391#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
392/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
393# include <stdint.h> 418# include <stdint.h>
… …
399# define EFD_CLOEXEC O_CLOEXEC 424# define EFD_CLOEXEC O_CLOEXEC
400# else 425# else
401# define EFD_CLOEXEC 02000000 426# define EFD_CLOEXEC 02000000
402# endif 427# endif
403# endif 428# endif
404# ifdef __cplusplus
405extern "C" {
406# endif
407int eventfd (unsigned int initval, int flags); 429EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
408# ifdef __cplusplus
409}
410# endif
411#endif 430#endif
412 431
413#if EV_USE_SIGNALFD 432#if EV_USE_SIGNALFD
414/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
415# include <stdint.h> 434# include <stdint.h>
… …
421# define SFD_CLOEXEC O_CLOEXEC 440# define SFD_CLOEXEC O_CLOEXEC
422# else 441# else
423# define SFD_CLOEXEC 02000000 442# define SFD_CLOEXEC 02000000
424# endif 443# endif
425# endif 444# endif
426# ifdef __cplusplus
427extern "C" {
428# endif
429int signalfd (int fd, const sigset_t *mask, int flags); 445EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
430 446
431struct signalfd_siginfo 447struct signalfd_siginfo
432{ 448{
433 uint32_t ssi_signo; 449 uint32_t ssi_signo;
434 char pad[128 - sizeof (uint32_t)]; 450 char pad[128 - sizeof (uint32_t)];
435}; 451};
436# ifdef __cplusplus
437}
438# endif 452#endif
439#endif
440
441 453
442/**/ 454/**/
443 455
444#if EV_VERIFY >= 3 456#if EV_VERIFY >= 3
445# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 457# define EV_FREQUENT_CHECK ev_verify (EV_A)
446#else 458#else
447# define EV_FREQUENT_CHECK do { } while (0) 459# define EV_FREQUENT_CHECK do { } while (0)
448#endif 460#endif
449 461
450/* 462/*
451 * This is used to avoid floating point rounding problems. 463 * This is used to work around floating point rounding problems.
452 * It is added to ev_rt_now when scheduling periodics
453 * to ensure progress, time-wise, even when rounding
454 * errors are against us.
455 * This value is good at least till the year 4000. 464 * This value is good at least till the year 4000.
456 * Better solutions welcome.
457 */ 465 */
458#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
459 468
460#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
461#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
462 471
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
474
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */
477/*
478 * libecb - http://software.schmorp.de/pkg/libecb
479 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved.
483 *
484 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met:
486 *
487 * 1. Redistributions of source code must retain the above copyright notice,
488 * this list of conditions and the following disclaimer.
489 *
490 * 2. Redistributions in binary form must reproduce the above copyright
491 * notice, this list of conditions and the following disclaimer in the
492 * documentation and/or other materials provided with the distribution.
493 *
494 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
495 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
496 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
497 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
498 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE.
504 */
505
506#ifndef ECB_H
507#define ECB_H
508
509#ifdef _WIN32
510 typedef signed char int8_t;
511 typedef unsigned char uint8_t;
512 typedef signed short int16_t;
513 typedef unsigned short uint16_t;
514 typedef signed int int32_t;
515 typedef unsigned int uint32_t;
463#if __GNUC__ >= 4 516 #if __GNUC__
464# define expect(expr,value) __builtin_expect ((expr),(value)) 517 typedef signed long long int64_t;
465# define noinline __attribute__ ((noinline)) 518 typedef unsigned long long uint64_t;
519 #else /* _MSC_VER || __BORLANDC__ */
520 typedef signed __int64 int64_t;
521 typedef unsigned __int64 uint64_t;
522 #endif
466#else 523#else
467# define expect(expr,value) (expr) 524 #include <inttypes.h>
468# define noinline
469# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
470# define inline
471# endif 525#endif
526
527/* many compilers define _GNUC_ to some versions but then only implement
528 * what their idiot authors think are the "more important" extensions,
529 * causing enormous grief in return for some better fake benchmark numbers.
530 * or so.
531 * we try to detect these and simply assume they are not gcc - if they have
532 * an issue with that they should have done it right in the first place.
533 */
534#ifndef ECB_GCC_VERSION
535 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
536 #define ECB_GCC_VERSION(major,minor) 0
537 #else
538 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
472#endif 539 #endif
540#endif
473 541
542/*****************************************************************************/
543
544/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
545/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
546
547#if ECB_NO_THREADS
548# define ECB_NO_SMP 1
549#endif
550
551#if ECB_NO_THREADS || ECB_NO_SMP
552 #define ECB_MEMORY_FENCE do { } while (0)
553#endif
554
555#ifndef ECB_MEMORY_FENCE
556 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
557 #if __i386 || __i386__
558 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
559 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
560 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
561 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
565 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
567 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
568 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
570 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
571 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
573 #elif __sparc || __sparc__
574 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
575 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
576 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
577 #elif defined __s390__ || defined __s390x__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
579 #elif defined __mips__
580 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
581 #elif defined __alpha__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
583 #endif
584 #endif
585#endif
586
587#ifndef ECB_MEMORY_FENCE
588 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
589 #define ECB_MEMORY_FENCE __sync_synchronize ()
590 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
591 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
592 #elif _MSC_VER >= 1400 /* VC++ 2005 */
593 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
594 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
595 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
596 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
597 #elif defined _WIN32
598 #include <WinNT.h>
599 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
600 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
601 #include <mbarrier.h>
602 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
603 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
604 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
605 #elif __xlC__
606 #define ECB_MEMORY_FENCE __sync ()
607 #endif
608#endif
609
610#ifndef ECB_MEMORY_FENCE
611 #if !ECB_AVOID_PTHREADS
612 /*
613 * if you get undefined symbol references to pthread_mutex_lock,
614 * or failure to find pthread.h, then you should implement
615 * the ECB_MEMORY_FENCE operations for your cpu/compiler
616 * OR provide pthread.h and link against the posix thread library
617 * of your system.
618 */
619 #include <pthread.h>
620 #define ECB_NEEDS_PTHREADS 1
621 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
622
623 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
624 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
625 #endif
626#endif
627
628#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
629 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
630#endif
631
632#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
633 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
634#endif
635
636/*****************************************************************************/
637
638#define ECB_C99 (__STDC_VERSION__ >= 199901L)
639
640#if __cplusplus
641 #define ecb_inline static inline
642#elif ECB_GCC_VERSION(2,5)
643 #define ecb_inline static __inline__
644#elif ECB_C99
645 #define ecb_inline static inline
646#else
647 #define ecb_inline static
648#endif
649
650#if ECB_GCC_VERSION(3,3)
651 #define ecb_restrict __restrict__
652#elif ECB_C99
653 #define ecb_restrict restrict
654#else
655 #define ecb_restrict
656#endif
657
658typedef int ecb_bool;
659
660#define ECB_CONCAT_(a, b) a ## b
661#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
662#define ECB_STRINGIFY_(a) # a
663#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
664
665#define ecb_function_ ecb_inline
666
667#if ECB_GCC_VERSION(3,1)
668 #define ecb_attribute(attrlist) __attribute__(attrlist)
669 #define ecb_is_constant(expr) __builtin_constant_p (expr)
670 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
671 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
672#else
673 #define ecb_attribute(attrlist)
674 #define ecb_is_constant(expr) 0
675 #define ecb_expect(expr,value) (expr)
676 #define ecb_prefetch(addr,rw,locality)
677#endif
678
679/* no emulation for ecb_decltype */
680#if ECB_GCC_VERSION(4,5)
681 #define ecb_decltype(x) __decltype(x)
682#elif ECB_GCC_VERSION(3,0)
683 #define ecb_decltype(x) __typeof(x)
684#endif
685
686#define ecb_noinline ecb_attribute ((__noinline__))
687#define ecb_noreturn ecb_attribute ((__noreturn__))
688#define ecb_unused ecb_attribute ((__unused__))
689#define ecb_const ecb_attribute ((__const__))
690#define ecb_pure ecb_attribute ((__pure__))
691
692#if ECB_GCC_VERSION(4,3)
693 #define ecb_artificial ecb_attribute ((__artificial__))
694 #define ecb_hot ecb_attribute ((__hot__))
695 #define ecb_cold ecb_attribute ((__cold__))
696#else
697 #define ecb_artificial
698 #define ecb_hot
699 #define ecb_cold
700#endif
701
702/* put around conditional expressions if you are very sure that the */
703/* expression is mostly true or mostly false. note that these return */
704/* booleans, not the expression. */
474#define expect_false(expr) expect ((expr) != 0, 0) 705#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
475#define expect_true(expr) expect ((expr) != 0, 1) 706#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
707/* for compatibility to the rest of the world */
708#define ecb_likely(expr) ecb_expect_true (expr)
709#define ecb_unlikely(expr) ecb_expect_false (expr)
710
711/* count trailing zero bits and count # of one bits */
712#if ECB_GCC_VERSION(3,4)
713 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
714 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
715 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
716 #define ecb_ctz32(x) __builtin_ctz (x)
717 #define ecb_ctz64(x) __builtin_ctzll (x)
718 #define ecb_popcount32(x) __builtin_popcount (x)
719 /* no popcountll */
720#else
721 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
722 ecb_function_ int
723 ecb_ctz32 (uint32_t x)
724 {
725 int r = 0;
726
727 x &= ~x + 1; /* this isolates the lowest bit */
728
729#if ECB_branchless_on_i386
730 r += !!(x & 0xaaaaaaaa) << 0;
731 r += !!(x & 0xcccccccc) << 1;
732 r += !!(x & 0xf0f0f0f0) << 2;
733 r += !!(x & 0xff00ff00) << 3;
734 r += !!(x & 0xffff0000) << 4;
735#else
736 if (x & 0xaaaaaaaa) r += 1;
737 if (x & 0xcccccccc) r += 2;
738 if (x & 0xf0f0f0f0) r += 4;
739 if (x & 0xff00ff00) r += 8;
740 if (x & 0xffff0000) r += 16;
741#endif
742
743 return r;
744 }
745
746 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
747 ecb_function_ int
748 ecb_ctz64 (uint64_t x)
749 {
750 int shift = x & 0xffffffffU ? 0 : 32;
751 return ecb_ctz32 (x >> shift) + shift;
752 }
753
754 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
755 ecb_function_ int
756 ecb_popcount32 (uint32_t x)
757 {
758 x -= (x >> 1) & 0x55555555;
759 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
760 x = ((x >> 4) + x) & 0x0f0f0f0f;
761 x *= 0x01010101;
762
763 return x >> 24;
764 }
765
766 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
767 ecb_function_ int ecb_ld32 (uint32_t x)
768 {
769 int r = 0;
770
771 if (x >> 16) { x >>= 16; r += 16; }
772 if (x >> 8) { x >>= 8; r += 8; }
773 if (x >> 4) { x >>= 4; r += 4; }
774 if (x >> 2) { x >>= 2; r += 2; }
775 if (x >> 1) { r += 1; }
776
777 return r;
778 }
779
780 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
781 ecb_function_ int ecb_ld64 (uint64_t x)
782 {
783 int r = 0;
784
785 if (x >> 32) { x >>= 32; r += 32; }
786
787 return r + ecb_ld32 (x);
788 }
789#endif
790
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
793{
794 return ( (x * 0x0802U & 0x22110U)
795 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
796}
797
798ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
800{
801 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
802 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
803 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
804 x = ( x >> 8 ) | ( x << 8);
805
806 return x;
807}
808
809ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
811{
812 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
813 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
814 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
815 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
816 x = ( x >> 16 ) | ( x << 16);
817
818 return x;
819}
820
821/* popcount64 is only available on 64 bit cpus as gcc builtin */
822/* so for this version we are lazy */
823ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
824ecb_function_ int
825ecb_popcount64 (uint64_t x)
826{
827 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
828}
829
830ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
831ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
832ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
833ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
834ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
835ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
836ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
837ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
838
839ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
840ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
841ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
842ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
843ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
844ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
845ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
846ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
847
848#if ECB_GCC_VERSION(4,3)
849 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
850 #define ecb_bswap32(x) __builtin_bswap32 (x)
851 #define ecb_bswap64(x) __builtin_bswap64 (x)
852#else
853 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
854 ecb_function_ uint16_t
855 ecb_bswap16 (uint16_t x)
856 {
857 return ecb_rotl16 (x, 8);
858 }
859
860 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
861 ecb_function_ uint32_t
862 ecb_bswap32 (uint32_t x)
863 {
864 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
865 }
866
867 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
868 ecb_function_ uint64_t
869 ecb_bswap64 (uint64_t x)
870 {
871 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
872 }
873#endif
874
875#if ECB_GCC_VERSION(4,5)
876 #define ecb_unreachable() __builtin_unreachable ()
877#else
878 /* this seems to work fine, but gcc always emits a warning for it :/ */
879 ecb_inline void ecb_unreachable (void) ecb_noreturn;
880 ecb_inline void ecb_unreachable (void) { }
881#endif
882
883/* try to tell the compiler that some condition is definitely true */
884#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
885
886ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
887ecb_inline unsigned char
888ecb_byteorder_helper (void)
889{
890 const uint32_t u = 0x11223344;
891 return *(unsigned char *)&u;
892}
893
894ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
895ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
896ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
897ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
898
899#if ECB_GCC_VERSION(3,0) || ECB_C99
900 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
901#else
902 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
903#endif
904
905#if __cplusplus
906 template<typename T>
907 static inline T ecb_div_rd (T val, T div)
908 {
909 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
910 }
911 template<typename T>
912 static inline T ecb_div_ru (T val, T div)
913 {
914 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
915 }
916#else
917 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
918 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
919#endif
920
921#if ecb_cplusplus_does_not_suck
922 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
923 template<typename T, int N>
924 static inline int ecb_array_length (const T (&arr)[N])
925 {
926 return N;
927 }
928#else
929 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
930#endif
931
932#endif
933
934/* ECB.H END */
935
936#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
937/* if your architecture doesn't need memory fences, e.g. because it is
938 * single-cpu/core, or if you use libev in a project that doesn't use libev
939 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
940 * libev, in which cases the memory fences become nops.
941 * alternatively, you can remove this #error and link against libpthread,
942 * which will then provide the memory fences.
943 */
944# error "memory fences not defined for your architecture, please report"
945#endif
946
947#ifndef ECB_MEMORY_FENCE
948# define ECB_MEMORY_FENCE do { } while (0)
949# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
950# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
951#endif
952
953#define expect_false(cond) ecb_expect_false (cond)
954#define expect_true(cond) ecb_expect_true (cond)
955#define noinline ecb_noinline
956
476#define inline_size static inline 957#define inline_size ecb_inline
477 958
478#if EV_MINIMAL 959#if EV_FEATURE_CODE
960# define inline_speed ecb_inline
961#else
479# define inline_speed static noinline 962# define inline_speed static noinline
480#else
481# define inline_speed static inline
482#endif 963#endif
483 964
484#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 965#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
485 966
486#if EV_MINPRI == EV_MAXPRI 967#if EV_MINPRI == EV_MAXPRI
… …
499#define ev_active(w) ((W)(w))->active 980#define ev_active(w) ((W)(w))->active
500#define ev_at(w) ((WT)(w))->at 981#define ev_at(w) ((WT)(w))->at
501 982
502#if EV_USE_REALTIME 983#if EV_USE_REALTIME
503/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 984/* sig_atomic_t is used to avoid per-thread variables or locking but still */
504/* giving it a reasonably high chance of working on typical architetcures */ 985/* giving it a reasonably high chance of working on typical architectures */
505static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 986static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
506#endif 987#endif
507 988
508#if EV_USE_MONOTONIC 989#if EV_USE_MONOTONIC
509static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 990static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
523# include "ev_win32.c" 1004# include "ev_win32.c"
524#endif 1005#endif
525 1006
526/*****************************************************************************/ 1007/*****************************************************************************/
527 1008
1009/* define a suitable floor function (only used by periodics atm) */
1010
1011#if EV_USE_FLOOR
1012# include <math.h>
1013# define ev_floor(v) floor (v)
1014#else
1015
1016#include <float.h>
1017
1018/* a floor() replacement function, should be independent of ev_tstamp type */
1019static ev_tstamp noinline
1020ev_floor (ev_tstamp v)
1021{
1022 /* the choice of shift factor is not terribly important */
1023#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1024 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1025#else
1026 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1027#endif
1028
1029 /* argument too large for an unsigned long? */
1030 if (expect_false (v >= shift))
1031 {
1032 ev_tstamp f;
1033
1034 if (v == v - 1.)
1035 return v; /* very large number */
1036
1037 f = shift * ev_floor (v * (1. / shift));
1038 return f + ev_floor (v - f);
1039 }
1040
1041 /* special treatment for negative args? */
1042 if (expect_false (v < 0.))
1043 {
1044 ev_tstamp f = -ev_floor (-v);
1045
1046 return f - (f == v ? 0 : 1);
1047 }
1048
1049 /* fits into an unsigned long */
1050 return (unsigned long)v;
1051}
1052
1053#endif
1054
1055/*****************************************************************************/
1056
1057#ifdef __linux
1058# include <sys/utsname.h>
1059#endif
1060
1061static unsigned int noinline ecb_cold
1062ev_linux_version (void)
1063{
1064#ifdef __linux
1065 unsigned int v = 0;
1066 struct utsname buf;
1067 int i;
1068 char *p = buf.release;
1069
1070 if (uname (&buf))
1071 return 0;
1072
1073 for (i = 3+1; --i; )
1074 {
1075 unsigned int c = 0;
1076
1077 for (;;)
1078 {
1079 if (*p >= '0' && *p <= '9')
1080 c = c * 10 + *p++ - '0';
1081 else
1082 {
1083 p += *p == '.';
1084 break;
1085 }
1086 }
1087
1088 v = (v << 8) | c;
1089 }
1090
1091 return v;
1092#else
1093 return 0;
1094#endif
1095}
1096
1097/*****************************************************************************/
1098
1099#if EV_AVOID_STDIO
1100static void noinline ecb_cold
1101ev_printerr (const char *msg)
1102{
1103 write (STDERR_FILENO, msg, strlen (msg));
1104}
1105#endif
1106
528static void (*syserr_cb)(const char *msg); 1107static void (*syserr_cb)(const char *msg) EV_THROW;
529 1108
530void 1109void ecb_cold
531ev_set_syserr_cb (void (*cb)(const char *msg)) 1110ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
532{ 1111{
533 syserr_cb = cb; 1112 syserr_cb = cb;
534} 1113}
535 1114
536static void noinline 1115static void noinline ecb_cold
537ev_syserr (const char *msg) 1116ev_syserr (const char *msg)
538{ 1117{
539 if (!msg) 1118 if (!msg)
540 msg = "(libev) system error"; 1119 msg = "(libev) system error";
541 1120
542 if (syserr_cb) 1121 if (syserr_cb)
543 syserr_cb (msg); 1122 syserr_cb (msg);
544 else 1123 else
545 { 1124 {
1125#if EV_AVOID_STDIO
1126 ev_printerr (msg);
1127 ev_printerr (": ");
1128 ev_printerr (strerror (errno));
1129 ev_printerr ("\n");
1130#else
546 perror (msg); 1131 perror (msg);
1132#endif
547 abort (); 1133 abort ();
548 } 1134 }
549} 1135}
550 1136
551static void * 1137static void *
552ev_realloc_emul (void *ptr, long size) 1138ev_realloc_emul (void *ptr, long size) EV_THROW
553{ 1139{
1140#if __GLIBC__
1141 return realloc (ptr, size);
1142#else
554 /* some systems, notably openbsd and darwin, fail to properly 1143 /* some systems, notably openbsd and darwin, fail to properly
555 * implement realloc (x, 0) (as required by both ansi c-98 and 1144 * implement realloc (x, 0) (as required by both ansi c-89 and
556 * the single unix specification, so work around them here. 1145 * the single unix specification, so work around them here.
557 */ 1146 */
558 1147
559 if (size) 1148 if (size)
560 return realloc (ptr, size); 1149 return realloc (ptr, size);
561 1150
562 free (ptr); 1151 free (ptr);
563 return 0; 1152 return 0;
1153#endif
564} 1154}
565 1155
566static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1156static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
567 1157
568void 1158void ecb_cold
569ev_set_allocator (void *(*cb)(void *ptr, long size)) 1159ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
570{ 1160{
571 alloc = cb; 1161 alloc = cb;
572} 1162}
573 1163
574inline_speed void * 1164inline_speed void *
… …
576{ 1166{
577 ptr = alloc (ptr, size); 1167 ptr = alloc (ptr, size);
578 1168
579 if (!ptr && size) 1169 if (!ptr && size)
580 { 1170 {
1171#if EV_AVOID_STDIO
1172 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1173#else
581 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1174 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1175#endif
582 abort (); 1176 abort ();
583 } 1177 }
584 1178
585 return ptr; 1179 return ptr;
586} 1180}
… …
602 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1196 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
603 unsigned char unused; 1197 unsigned char unused;
604#if EV_USE_EPOLL 1198#if EV_USE_EPOLL
605 unsigned int egen; /* generation counter to counter epoll bugs */ 1199 unsigned int egen; /* generation counter to counter epoll bugs */
606#endif 1200#endif
607#if EV_SELECT_IS_WINSOCKET 1201#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
608 SOCKET handle; 1202 SOCKET handle;
1203#endif
1204#if EV_USE_IOCP
1205 OVERLAPPED or, ow;
609#endif 1206#endif
610} ANFD; 1207} ANFD;
611 1208
612/* stores the pending event set for a given watcher */ 1209/* stores the pending event set for a given watcher */
613typedef struct 1210typedef struct
… …
655 #undef VAR 1252 #undef VAR
656 }; 1253 };
657 #include "ev_wrap.h" 1254 #include "ev_wrap.h"
658 1255
659 static struct ev_loop default_loop_struct; 1256 static struct ev_loop default_loop_struct;
660 struct ev_loop *ev_default_loop_ptr; 1257 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
661 1258
662#else 1259#else
663 1260
664 ev_tstamp ev_rt_now; 1261 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
665 #define VAR(name,decl) static decl; 1262 #define VAR(name,decl) static decl;
666 #include "ev_vars.h" 1263 #include "ev_vars.h"
667 #undef VAR 1264 #undef VAR
668 1265
669 static int ev_default_loop_ptr; 1266 static int ev_default_loop_ptr;
670 1267
671#endif 1268#endif
672 1269
673#if EV_MINIMAL < 2 1270#if EV_FEATURE_API
674# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1271# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
675# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1272# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
676# define EV_INVOKE_PENDING invoke_cb (EV_A) 1273# define EV_INVOKE_PENDING invoke_cb (EV_A)
677#else 1274#else
678# define EV_RELEASE_CB (void)0 1275# define EV_RELEASE_CB (void)0
679# define EV_ACQUIRE_CB (void)0 1276# define EV_ACQUIRE_CB (void)0
680# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1277# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
681#endif 1278#endif
682 1279
683#define EVUNLOOP_RECURSE 0x80 1280#define EVBREAK_RECURSE 0x80
684 1281
685/*****************************************************************************/ 1282/*****************************************************************************/
686 1283
687#ifndef EV_HAVE_EV_TIME 1284#ifndef EV_HAVE_EV_TIME
688ev_tstamp 1285ev_tstamp
689ev_time (void) 1286ev_time (void) EV_THROW
690{ 1287{
691#if EV_USE_REALTIME 1288#if EV_USE_REALTIME
692 if (expect_true (have_realtime)) 1289 if (expect_true (have_realtime))
693 { 1290 {
694 struct timespec ts; 1291 struct timespec ts;
… …
718 return ev_time (); 1315 return ev_time ();
719} 1316}
720 1317
721#if EV_MULTIPLICITY 1318#if EV_MULTIPLICITY
722ev_tstamp 1319ev_tstamp
723ev_now (EV_P) 1320ev_now (EV_P) EV_THROW
724{ 1321{
725 return ev_rt_now; 1322 return ev_rt_now;
726} 1323}
727#endif 1324#endif
728 1325
729void 1326void
730ev_sleep (ev_tstamp delay) 1327ev_sleep (ev_tstamp delay) EV_THROW
731{ 1328{
732 if (delay > 0.) 1329 if (delay > 0.)
733 { 1330 {
734#if EV_USE_NANOSLEEP 1331#if EV_USE_NANOSLEEP
735 struct timespec ts; 1332 struct timespec ts;
736 1333
737 ts.tv_sec = (time_t)delay; 1334 EV_TS_SET (ts, delay);
738 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
739
740 nanosleep (&ts, 0); 1335 nanosleep (&ts, 0);
741#elif defined(_WIN32) 1336#elif defined _WIN32
742 Sleep ((unsigned long)(delay * 1e3)); 1337 Sleep ((unsigned long)(delay * 1e3));
743#else 1338#else
744 struct timeval tv; 1339 struct timeval tv;
745 1340
746 tv.tv_sec = (time_t)delay;
747 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
748
749 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1341 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
750 /* something not guaranteed by newer posix versions, but guaranteed */ 1342 /* something not guaranteed by newer posix versions, but guaranteed */
751 /* by older ones */ 1343 /* by older ones */
1344 EV_TV_SET (tv, delay);
752 select (0, 0, 0, 0, &tv); 1345 select (0, 0, 0, 0, &tv);
753#endif 1346#endif
754 } 1347 }
755} 1348}
756 1349
757/*****************************************************************************/ 1350/*****************************************************************************/
758 1351
759#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1352#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
760 1353
761/* find a suitable new size for the given array, */ 1354/* find a suitable new size for the given array, */
762/* hopefully by rounding to a ncie-to-malloc size */ 1355/* hopefully by rounding to a nice-to-malloc size */
763inline_size int 1356inline_size int
764array_nextsize (int elem, int cur, int cnt) 1357array_nextsize (int elem, int cur, int cnt)
765{ 1358{
766 int ncur = cur + 1; 1359 int ncur = cur + 1;
767 1360
768 do 1361 do
769 ncur <<= 1; 1362 ncur <<= 1;
770 while (cnt > ncur); 1363 while (cnt > ncur);
771 1364
772 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1365 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
773 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1366 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
774 { 1367 {
775 ncur *= elem; 1368 ncur *= elem;
776 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1369 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
777 ncur = ncur - sizeof (void *) * 4; 1370 ncur = ncur - sizeof (void *) * 4;
… …
779 } 1372 }
780 1373
781 return ncur; 1374 return ncur;
782} 1375}
783 1376
784static noinline void * 1377static void * noinline ecb_cold
785array_realloc (int elem, void *base, int *cur, int cnt) 1378array_realloc (int elem, void *base, int *cur, int cnt)
786{ 1379{
787 *cur = array_nextsize (elem, *cur, cnt); 1380 *cur = array_nextsize (elem, *cur, cnt);
788 return ev_realloc (base, elem * *cur); 1381 return ev_realloc (base, elem * *cur);
789} 1382}
… …
792 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1385 memset ((void *)(base), 0, sizeof (*(base)) * (count))
793 1386
794#define array_needsize(type,base,cur,cnt,init) \ 1387#define array_needsize(type,base,cur,cnt,init) \
795 if (expect_false ((cnt) > (cur))) \ 1388 if (expect_false ((cnt) > (cur))) \
796 { \ 1389 { \
797 int ocur_ = (cur); \ 1390 int ecb_unused ocur_ = (cur); \
798 (base) = (type *)array_realloc \ 1391 (base) = (type *)array_realloc \
799 (sizeof (type), (base), &(cur), (cnt)); \ 1392 (sizeof (type), (base), &(cur), (cnt)); \
800 init ((base) + (ocur_), (cur) - ocur_); \ 1393 init ((base) + (ocur_), (cur) - ocur_); \
801 } 1394 }
802 1395
… …
820pendingcb (EV_P_ ev_prepare *w, int revents) 1413pendingcb (EV_P_ ev_prepare *w, int revents)
821{ 1414{
822} 1415}
823 1416
824void noinline 1417void noinline
825ev_feed_event (EV_P_ void *w, int revents) 1418ev_feed_event (EV_P_ void *w, int revents) EV_THROW
826{ 1419{
827 W w_ = (W)w; 1420 W w_ = (W)w;
828 int pri = ABSPRI (w_); 1421 int pri = ABSPRI (w_);
829 1422
830 if (expect_false (w_->pending)) 1423 if (expect_false (w_->pending))
… …
834 w_->pending = ++pendingcnt [pri]; 1427 w_->pending = ++pendingcnt [pri];
835 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1428 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
836 pendings [pri][w_->pending - 1].w = w_; 1429 pendings [pri][w_->pending - 1].w = w_;
837 pendings [pri][w_->pending - 1].events = revents; 1430 pendings [pri][w_->pending - 1].events = revents;
838 } 1431 }
1432
1433 pendingpri = NUMPRI - 1;
839} 1434}
840 1435
841inline_speed void 1436inline_speed void
842feed_reverse (EV_P_ W w) 1437feed_reverse (EV_P_ W w)
843{ 1438{
… …
863} 1458}
864 1459
865/*****************************************************************************/ 1460/*****************************************************************************/
866 1461
867inline_speed void 1462inline_speed void
868fd_event_nc (EV_P_ int fd, int revents) 1463fd_event_nocheck (EV_P_ int fd, int revents)
869{ 1464{
870 ANFD *anfd = anfds + fd; 1465 ANFD *anfd = anfds + fd;
871 ev_io *w; 1466 ev_io *w;
872 1467
873 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1468 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
885fd_event (EV_P_ int fd, int revents) 1480fd_event (EV_P_ int fd, int revents)
886{ 1481{
887 ANFD *anfd = anfds + fd; 1482 ANFD *anfd = anfds + fd;
888 1483
889 if (expect_true (!anfd->reify)) 1484 if (expect_true (!anfd->reify))
890 fd_event_nc (EV_A_ fd, revents); 1485 fd_event_nocheck (EV_A_ fd, revents);
891} 1486}
892 1487
893void 1488void
894ev_feed_fd_event (EV_P_ int fd, int revents) 1489ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
895{ 1490{
896 if (fd >= 0 && fd < anfdmax) 1491 if (fd >= 0 && fd < anfdmax)
897 fd_event_nc (EV_A_ fd, revents); 1492 fd_event_nocheck (EV_A_ fd, revents);
898} 1493}
899 1494
900/* make sure the external fd watch events are in-sync */ 1495/* make sure the external fd watch events are in-sync */
901/* with the kernel/libev internal state */ 1496/* with the kernel/libev internal state */
902inline_size void 1497inline_size void
903fd_reify (EV_P) 1498fd_reify (EV_P)
904{ 1499{
905 int i; 1500 int i;
906 1501
1502#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1503 for (i = 0; i < fdchangecnt; ++i)
1504 {
1505 int fd = fdchanges [i];
1506 ANFD *anfd = anfds + fd;
1507
1508 if (anfd->reify & EV__IOFDSET && anfd->head)
1509 {
1510 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1511
1512 if (handle != anfd->handle)
1513 {
1514 unsigned long arg;
1515
1516 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1517
1518 /* handle changed, but fd didn't - we need to do it in two steps */
1519 backend_modify (EV_A_ fd, anfd->events, 0);
1520 anfd->events = 0;
1521 anfd->handle = handle;
1522 }
1523 }
1524 }
1525#endif
1526
907 for (i = 0; i < fdchangecnt; ++i) 1527 for (i = 0; i < fdchangecnt; ++i)
908 { 1528 {
909 int fd = fdchanges [i]; 1529 int fd = fdchanges [i];
910 ANFD *anfd = anfds + fd; 1530 ANFD *anfd = anfds + fd;
911 ev_io *w; 1531 ev_io *w;
912 1532
913 unsigned char events = 0; 1533 unsigned char o_events = anfd->events;
1534 unsigned char o_reify = anfd->reify;
914 1535
915 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1536 anfd->reify = 0;
916 events |= (unsigned char)w->events;
917 1537
918#if EV_SELECT_IS_WINSOCKET 1538 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
919 if (events)
920 { 1539 {
921 unsigned long arg; 1540 anfd->events = 0;
922 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1541
923 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1542 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1543 anfd->events |= (unsigned char)w->events;
1544
1545 if (o_events != anfd->events)
1546 o_reify = EV__IOFDSET; /* actually |= */
924 } 1547 }
925#endif
926 1548
927 { 1549 if (o_reify & EV__IOFDSET)
928 unsigned char o_events = anfd->events;
929 unsigned char o_reify = anfd->reify;
930
931 anfd->reify = 0;
932 anfd->events = events;
933
934 if (o_events != events || o_reify & EV__IOFDSET)
935 backend_modify (EV_A_ fd, o_events, events); 1550 backend_modify (EV_A_ fd, o_events, anfd->events);
936 }
937 } 1551 }
938 1552
939 fdchangecnt = 0; 1553 fdchangecnt = 0;
940} 1554}
941 1555
… …
953 fdchanges [fdchangecnt - 1] = fd; 1567 fdchanges [fdchangecnt - 1] = fd;
954 } 1568 }
955} 1569}
956 1570
957/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1571/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
958inline_speed void 1572inline_speed void ecb_cold
959fd_kill (EV_P_ int fd) 1573fd_kill (EV_P_ int fd)
960{ 1574{
961 ev_io *w; 1575 ev_io *w;
962 1576
963 while ((w = (ev_io *)anfds [fd].head)) 1577 while ((w = (ev_io *)anfds [fd].head))
… …
965 ev_io_stop (EV_A_ w); 1579 ev_io_stop (EV_A_ w);
966 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1580 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
967 } 1581 }
968} 1582}
969 1583
970/* check whether the given fd is atcually valid, for error recovery */ 1584/* check whether the given fd is actually valid, for error recovery */
971inline_size int 1585inline_size int ecb_cold
972fd_valid (int fd) 1586fd_valid (int fd)
973{ 1587{
974#ifdef _WIN32 1588#ifdef _WIN32
975 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1589 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
976#else 1590#else
977 return fcntl (fd, F_GETFD) != -1; 1591 return fcntl (fd, F_GETFD) != -1;
978#endif 1592#endif
979} 1593}
980 1594
981/* called on EBADF to verify fds */ 1595/* called on EBADF to verify fds */
982static void noinline 1596static void noinline ecb_cold
983fd_ebadf (EV_P) 1597fd_ebadf (EV_P)
984{ 1598{
985 int fd; 1599 int fd;
986 1600
987 for (fd = 0; fd < anfdmax; ++fd) 1601 for (fd = 0; fd < anfdmax; ++fd)
… …
989 if (!fd_valid (fd) && errno == EBADF) 1603 if (!fd_valid (fd) && errno == EBADF)
990 fd_kill (EV_A_ fd); 1604 fd_kill (EV_A_ fd);
991} 1605}
992 1606
993/* called on ENOMEM in select/poll to kill some fds and retry */ 1607/* called on ENOMEM in select/poll to kill some fds and retry */
994static void noinline 1608static void noinline ecb_cold
995fd_enomem (EV_P) 1609fd_enomem (EV_P)
996{ 1610{
997 int fd; 1611 int fd;
998 1612
999 for (fd = anfdmax; fd--; ) 1613 for (fd = anfdmax; fd--; )
… …
1017 anfds [fd].emask = 0; 1631 anfds [fd].emask = 0;
1018 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1632 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1019 } 1633 }
1020} 1634}
1021 1635
1636/* used to prepare libev internal fd's */
1637/* this is not fork-safe */
1638inline_speed void
1639fd_intern (int fd)
1640{
1641#ifdef _WIN32
1642 unsigned long arg = 1;
1643 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1644#else
1645 fcntl (fd, F_SETFD, FD_CLOEXEC);
1646 fcntl (fd, F_SETFL, O_NONBLOCK);
1647#endif
1648}
1649
1022/*****************************************************************************/ 1650/*****************************************************************************/
1023 1651
1024/* 1652/*
1025 * the heap functions want a real array index. array index 0 uis guaranteed to not 1653 * the heap functions want a real array index. array index 0 is guaranteed to not
1026 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1654 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1027 * the branching factor of the d-tree. 1655 * the branching factor of the d-tree.
1028 */ 1656 */
1029 1657
1030/* 1658/*
… …
1178 1806
1179static ANSIG signals [EV_NSIG - 1]; 1807static ANSIG signals [EV_NSIG - 1];
1180 1808
1181/*****************************************************************************/ 1809/*****************************************************************************/
1182 1810
1183/* used to prepare libev internal fd's */ 1811#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1184/* this is not fork-safe */
1185inline_speed void
1186fd_intern (int fd)
1187{
1188#ifdef _WIN32
1189 unsigned long arg = 1;
1190 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1191#else
1192 fcntl (fd, F_SETFD, FD_CLOEXEC);
1193 fcntl (fd, F_SETFL, O_NONBLOCK);
1194#endif
1195}
1196 1812
1197static void noinline 1813static void noinline ecb_cold
1198evpipe_init (EV_P) 1814evpipe_init (EV_P)
1199{ 1815{
1200 if (!ev_is_active (&pipe_w)) 1816 if (!ev_is_active (&pipe_w))
1201 { 1817 {
1202#if EV_USE_EVENTFD 1818# if EV_USE_EVENTFD
1203 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1819 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1204 if (evfd < 0 && errno == EINVAL) 1820 if (evfd < 0 && errno == EINVAL)
1205 evfd = eventfd (0, 0); 1821 evfd = eventfd (0, 0);
1206 1822
1207 if (evfd >= 0) 1823 if (evfd >= 0)
… …
1209 evpipe [0] = -1; 1825 evpipe [0] = -1;
1210 fd_intern (evfd); /* doing it twice doesn't hurt */ 1826 fd_intern (evfd); /* doing it twice doesn't hurt */
1211 ev_io_set (&pipe_w, evfd, EV_READ); 1827 ev_io_set (&pipe_w, evfd, EV_READ);
1212 } 1828 }
1213 else 1829 else
1214#endif 1830# endif
1215 { 1831 {
1216 while (pipe (evpipe)) 1832 while (pipe (evpipe))
1217 ev_syserr ("(libev) error creating signal/async pipe"); 1833 ev_syserr ("(libev) error creating signal/async pipe");
1218 1834
1219 fd_intern (evpipe [0]); 1835 fd_intern (evpipe [0]);
… …
1224 ev_io_start (EV_A_ &pipe_w); 1840 ev_io_start (EV_A_ &pipe_w);
1225 ev_unref (EV_A); /* watcher should not keep loop alive */ 1841 ev_unref (EV_A); /* watcher should not keep loop alive */
1226 } 1842 }
1227} 1843}
1228 1844
1229inline_size void 1845inline_speed void
1230evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1846evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1231{ 1847{
1232 if (!*flag) 1848 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1849
1850 if (expect_true (*flag))
1851 return;
1852
1853 *flag = 1;
1854 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1855
1856 pipe_write_skipped = 1;
1857
1858 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1859
1860 if (pipe_write_wanted)
1233 { 1861 {
1862 int old_errno;
1863
1864 pipe_write_skipped = 0;
1865 ECB_MEMORY_FENCE_RELEASE;
1866
1234 int old_errno = errno; /* save errno because write might clobber it */ 1867 old_errno = errno; /* save errno because write will clobber it */
1235
1236 *flag = 1;
1237 1868
1238#if EV_USE_EVENTFD 1869#if EV_USE_EVENTFD
1239 if (evfd >= 0) 1870 if (evfd >= 0)
1240 { 1871 {
1241 uint64_t counter = 1; 1872 uint64_t counter = 1;
1242 write (evfd, &counter, sizeof (uint64_t)); 1873 write (evfd, &counter, sizeof (uint64_t));
1243 } 1874 }
1244 else 1875 else
1245#endif 1876#endif
1877 {
1878#ifdef _WIN32
1879 WSABUF buf;
1880 DWORD sent;
1881 buf.buf = &buf;
1882 buf.len = 1;
1883 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1884#else
1246 write (evpipe [1], &old_errno, 1); 1885 write (evpipe [1], &(evpipe [1]), 1);
1886#endif
1887 }
1247 1888
1248 errno = old_errno; 1889 errno = old_errno;
1249 } 1890 }
1250} 1891}
1251 1892
… …
1254static void 1895static void
1255pipecb (EV_P_ ev_io *iow, int revents) 1896pipecb (EV_P_ ev_io *iow, int revents)
1256{ 1897{
1257 int i; 1898 int i;
1258 1899
1900 if (revents & EV_READ)
1901 {
1259#if EV_USE_EVENTFD 1902#if EV_USE_EVENTFD
1260 if (evfd >= 0) 1903 if (evfd >= 0)
1261 { 1904 {
1262 uint64_t counter; 1905 uint64_t counter;
1263 read (evfd, &counter, sizeof (uint64_t)); 1906 read (evfd, &counter, sizeof (uint64_t));
1264 } 1907 }
1265 else 1908 else
1266#endif 1909#endif
1267 { 1910 {
1268 char dummy; 1911 char dummy[4];
1912#ifdef _WIN32
1913 WSABUF buf;
1914 DWORD recvd;
1915 DWORD flags = 0;
1916 buf.buf = dummy;
1917 buf.len = sizeof (dummy);
1918 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1919#else
1269 read (evpipe [0], &dummy, 1); 1920 read (evpipe [0], &dummy, sizeof (dummy));
1921#endif
1922 }
1270 } 1923 }
1271 1924
1925 pipe_write_skipped = 0;
1926
1927 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1928
1929#if EV_SIGNAL_ENABLE
1272 if (sig_pending) 1930 if (sig_pending)
1273 { 1931 {
1274 sig_pending = 0; 1932 sig_pending = 0;
1933
1934 ECB_MEMORY_FENCE;
1275 1935
1276 for (i = EV_NSIG - 1; i--; ) 1936 for (i = EV_NSIG - 1; i--; )
1277 if (expect_false (signals [i].pending)) 1937 if (expect_false (signals [i].pending))
1278 ev_feed_signal_event (EV_A_ i + 1); 1938 ev_feed_signal_event (EV_A_ i + 1);
1279 } 1939 }
1940#endif
1280 1941
1281#if EV_ASYNC_ENABLE 1942#if EV_ASYNC_ENABLE
1282 if (async_pending) 1943 if (async_pending)
1283 { 1944 {
1284 async_pending = 0; 1945 async_pending = 0;
1946
1947 ECB_MEMORY_FENCE;
1285 1948
1286 for (i = asynccnt; i--; ) 1949 for (i = asynccnt; i--; )
1287 if (asyncs [i]->sent) 1950 if (asyncs [i]->sent)
1288 { 1951 {
1289 asyncs [i]->sent = 0; 1952 asyncs [i]->sent = 0;
1953 ECB_MEMORY_FENCE_RELEASE;
1290 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 1954 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1291 } 1955 }
1292 } 1956 }
1293#endif 1957#endif
1294} 1958}
1295 1959
1296/*****************************************************************************/ 1960/*****************************************************************************/
1297 1961
1962void
1963ev_feed_signal (int signum) EV_THROW
1964{
1965#if EV_MULTIPLICITY
1966 EV_P = signals [signum - 1].loop;
1967
1968 if (!EV_A)
1969 return;
1970#endif
1971
1972 if (!ev_active (&pipe_w))
1973 return;
1974
1975 signals [signum - 1].pending = 1;
1976 evpipe_write (EV_A_ &sig_pending);
1977}
1978
1298static void 1979static void
1299ev_sighandler (int signum) 1980ev_sighandler (int signum)
1300{ 1981{
1301#if EV_MULTIPLICITY
1302 EV_P = signals [signum - 1].loop;
1303#endif
1304
1305#ifdef _WIN32 1982#ifdef _WIN32
1306 signal (signum, ev_sighandler); 1983 signal (signum, ev_sighandler);
1307#endif 1984#endif
1308 1985
1309 signals [signum - 1].pending = 1; 1986 ev_feed_signal (signum);
1310 evpipe_write (EV_A_ &sig_pending);
1311} 1987}
1312 1988
1313void noinline 1989void noinline
1314ev_feed_signal_event (EV_P_ int signum) 1990ev_feed_signal_event (EV_P_ int signum) EV_THROW
1315{ 1991{
1316 WL w; 1992 WL w;
1317 1993
1318 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1994 if (expect_false (signum <= 0 || signum > EV_NSIG))
1319 return; 1995 return;
… …
1327 if (expect_false (signals [signum].loop != EV_A)) 2003 if (expect_false (signals [signum].loop != EV_A))
1328 return; 2004 return;
1329#endif 2005#endif
1330 2006
1331 signals [signum].pending = 0; 2007 signals [signum].pending = 0;
2008 MEMORY_FENCE_RELEASE;
1332 2009
1333 for (w = signals [signum].head; w; w = w->next) 2010 for (w = signals [signum].head; w; w = w->next)
1334 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2011 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1335} 2012}
1336 2013
… …
1352 break; 2029 break;
1353 } 2030 }
1354} 2031}
1355#endif 2032#endif
1356 2033
2034#endif
2035
1357/*****************************************************************************/ 2036/*****************************************************************************/
1358 2037
2038#if EV_CHILD_ENABLE
1359static WL childs [EV_PID_HASHSIZE]; 2039static WL childs [EV_PID_HASHSIZE];
1360
1361#ifndef _WIN32
1362 2040
1363static ev_signal childev; 2041static ev_signal childev;
1364 2042
1365#ifndef WIFCONTINUED 2043#ifndef WIFCONTINUED
1366# define WIFCONTINUED(status) 0 2044# define WIFCONTINUED(status) 0
… …
1371child_reap (EV_P_ int chain, int pid, int status) 2049child_reap (EV_P_ int chain, int pid, int status)
1372{ 2050{
1373 ev_child *w; 2051 ev_child *w;
1374 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 2052 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1375 2053
1376 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2054 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1377 { 2055 {
1378 if ((w->pid == pid || !w->pid) 2056 if ((w->pid == pid || !w->pid)
1379 && (!traced || (w->flags & 1))) 2057 && (!traced || (w->flags & 1)))
1380 { 2058 {
1381 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 2059 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1406 /* make sure we are called again until all children have been reaped */ 2084 /* make sure we are called again until all children have been reaped */
1407 /* we need to do it this way so that the callback gets called before we continue */ 2085 /* we need to do it this way so that the callback gets called before we continue */
1408 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 2086 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1409 2087
1410 child_reap (EV_A_ pid, pid, status); 2088 child_reap (EV_A_ pid, pid, status);
1411 if (EV_PID_HASHSIZE > 1) 2089 if ((EV_PID_HASHSIZE) > 1)
1412 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 2090 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1413} 2091}
1414 2092
1415#endif 2093#endif
1416 2094
1417/*****************************************************************************/ 2095/*****************************************************************************/
1418 2096
2097#if EV_USE_IOCP
2098# include "ev_iocp.c"
2099#endif
1419#if EV_USE_PORT 2100#if EV_USE_PORT
1420# include "ev_port.c" 2101# include "ev_port.c"
1421#endif 2102#endif
1422#if EV_USE_KQUEUE 2103#if EV_USE_KQUEUE
1423# include "ev_kqueue.c" 2104# include "ev_kqueue.c"
… …
1430#endif 2111#endif
1431#if EV_USE_SELECT 2112#if EV_USE_SELECT
1432# include "ev_select.c" 2113# include "ev_select.c"
1433#endif 2114#endif
1434 2115
1435int 2116int ecb_cold
1436ev_version_major (void) 2117ev_version_major (void) EV_THROW
1437{ 2118{
1438 return EV_VERSION_MAJOR; 2119 return EV_VERSION_MAJOR;
1439} 2120}
1440 2121
1441int 2122int ecb_cold
1442ev_version_minor (void) 2123ev_version_minor (void) EV_THROW
1443{ 2124{
1444 return EV_VERSION_MINOR; 2125 return EV_VERSION_MINOR;
1445} 2126}
1446 2127
1447/* return true if we are running with elevated privileges and should ignore env variables */ 2128/* return true if we are running with elevated privileges and should ignore env variables */
1448int inline_size 2129int inline_size ecb_cold
1449enable_secure (void) 2130enable_secure (void)
1450{ 2131{
1451#ifdef _WIN32 2132#ifdef _WIN32
1452 return 0; 2133 return 0;
1453#else 2134#else
1454 return getuid () != geteuid () 2135 return getuid () != geteuid ()
1455 || getgid () != getegid (); 2136 || getgid () != getegid ();
1456#endif 2137#endif
1457} 2138}
1458 2139
1459unsigned int 2140unsigned int ecb_cold
1460ev_supported_backends (void) 2141ev_supported_backends (void) EV_THROW
1461{ 2142{
1462 unsigned int flags = 0; 2143 unsigned int flags = 0;
1463 2144
1464 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2145 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1465 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2146 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1468 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2149 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1469 2150
1470 return flags; 2151 return flags;
1471} 2152}
1472 2153
1473unsigned int 2154unsigned int ecb_cold
1474ev_recommended_backends (void) 2155ev_recommended_backends (void) EV_THROW
1475{ 2156{
1476 unsigned int flags = ev_supported_backends (); 2157 unsigned int flags = ev_supported_backends ();
1477 2158
1478#ifndef __NetBSD__ 2159#ifndef __NetBSD__
1479 /* kqueue is borked on everything but netbsd apparently */ 2160 /* kqueue is borked on everything but netbsd apparently */
… …
1483#ifdef __APPLE__ 2164#ifdef __APPLE__
1484 /* only select works correctly on that "unix-certified" platform */ 2165 /* only select works correctly on that "unix-certified" platform */
1485 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2166 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1486 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2167 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1487#endif 2168#endif
2169#ifdef __FreeBSD__
2170 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2171#endif
1488 2172
1489 return flags; 2173 return flags;
1490} 2174}
1491 2175
2176unsigned int ecb_cold
2177ev_embeddable_backends (void) EV_THROW
2178{
2179 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2180
2181 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2182 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2183 flags &= ~EVBACKEND_EPOLL;
2184
2185 return flags;
2186}
2187
1492unsigned int 2188unsigned int
1493ev_embeddable_backends (void) 2189ev_backend (EV_P) EV_THROW
1494{ 2190{
1495 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2191 return backend;
1496
1497 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1498 /* please fix it and tell me how to detect the fix */
1499 flags &= ~EVBACKEND_EPOLL;
1500
1501 return flags;
1502} 2192}
1503 2193
2194#if EV_FEATURE_API
1504unsigned int 2195unsigned int
1505ev_backend (EV_P) 2196ev_iteration (EV_P) EV_THROW
1506{ 2197{
1507 return backend; 2198 return loop_count;
1508} 2199}
1509 2200
1510#if EV_MINIMAL < 2
1511unsigned int 2201unsigned int
1512ev_loop_count (EV_P) 2202ev_depth (EV_P) EV_THROW
1513{
1514 return loop_count;
1515}
1516
1517unsigned int
1518ev_loop_depth (EV_P)
1519{ 2203{
1520 return loop_depth; 2204 return loop_depth;
1521} 2205}
1522 2206
1523void 2207void
1524ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2208ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1525{ 2209{
1526 io_blocktime = interval; 2210 io_blocktime = interval;
1527} 2211}
1528 2212
1529void 2213void
1530ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2214ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1531{ 2215{
1532 timeout_blocktime = interval; 2216 timeout_blocktime = interval;
1533} 2217}
1534 2218
1535void 2219void
1536ev_set_userdata (EV_P_ void *data) 2220ev_set_userdata (EV_P_ void *data) EV_THROW
1537{ 2221{
1538 userdata = data; 2222 userdata = data;
1539} 2223}
1540 2224
1541void * 2225void *
1542ev_userdata (EV_P) 2226ev_userdata (EV_P) EV_THROW
1543{ 2227{
1544 return userdata; 2228 return userdata;
1545} 2229}
1546 2230
2231void
1547void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2232ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1548{ 2233{
1549 invoke_cb = invoke_pending_cb; 2234 invoke_cb = invoke_pending_cb;
1550} 2235}
1551 2236
2237void
1552void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2238ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1553{ 2239{
1554 release_cb = release; 2240 release_cb = release;
1555 acquire_cb = acquire; 2241 acquire_cb = acquire;
1556} 2242}
1557#endif 2243#endif
1558 2244
1559/* initialise a loop structure, must be zero-initialised */ 2245/* initialise a loop structure, must be zero-initialised */
1560static void noinline 2246static void noinline ecb_cold
1561loop_init (EV_P_ unsigned int flags) 2247loop_init (EV_P_ unsigned int flags) EV_THROW
1562{ 2248{
1563 if (!backend) 2249 if (!backend)
1564 { 2250 {
2251 origflags = flags;
2252
1565#if EV_USE_REALTIME 2253#if EV_USE_REALTIME
1566 if (!have_realtime) 2254 if (!have_realtime)
1567 { 2255 {
1568 struct timespec ts; 2256 struct timespec ts;
1569 2257
… …
1591 if (!(flags & EVFLAG_NOENV) 2279 if (!(flags & EVFLAG_NOENV)
1592 && !enable_secure () 2280 && !enable_secure ()
1593 && getenv ("LIBEV_FLAGS")) 2281 && getenv ("LIBEV_FLAGS"))
1594 flags = atoi (getenv ("LIBEV_FLAGS")); 2282 flags = atoi (getenv ("LIBEV_FLAGS"));
1595 2283
1596 ev_rt_now = ev_time (); 2284 ev_rt_now = ev_time ();
1597 mn_now = get_clock (); 2285 mn_now = get_clock ();
1598 now_floor = mn_now; 2286 now_floor = mn_now;
1599 rtmn_diff = ev_rt_now - mn_now; 2287 rtmn_diff = ev_rt_now - mn_now;
1600#if EV_MINIMAL < 2 2288#if EV_FEATURE_API
1601 invoke_cb = ev_invoke_pending; 2289 invoke_cb = ev_invoke_pending;
1602#endif 2290#endif
1603 2291
1604 io_blocktime = 0.; 2292 io_blocktime = 0.;
1605 timeout_blocktime = 0.; 2293 timeout_blocktime = 0.;
1606 backend = 0; 2294 backend = 0;
1607 backend_fd = -1; 2295 backend_fd = -1;
1608 sig_pending = 0; 2296 sig_pending = 0;
1609#if EV_ASYNC_ENABLE 2297#if EV_ASYNC_ENABLE
1610 async_pending = 0; 2298 async_pending = 0;
1611#endif 2299#endif
2300 pipe_write_skipped = 0;
2301 pipe_write_wanted = 0;
1612#if EV_USE_INOTIFY 2302#if EV_USE_INOTIFY
1613 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2303 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1614#endif 2304#endif
1615#if EV_USE_SIGNALFD 2305#if EV_USE_SIGNALFD
1616 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2306 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1617#endif 2307#endif
1618 2308
1619 if (!(flags & 0x0000ffffU)) 2309 if (!(flags & EVBACKEND_MASK))
1620 flags |= ev_recommended_backends (); 2310 flags |= ev_recommended_backends ();
1621 2311
2312#if EV_USE_IOCP
2313 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2314#endif
1622#if EV_USE_PORT 2315#if EV_USE_PORT
1623 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2316 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1624#endif 2317#endif
1625#if EV_USE_KQUEUE 2318#if EV_USE_KQUEUE
1626 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2319 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1635 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2328 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1636#endif 2329#endif
1637 2330
1638 ev_prepare_init (&pending_w, pendingcb); 2331 ev_prepare_init (&pending_w, pendingcb);
1639 2332
2333#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1640 ev_init (&pipe_w, pipecb); 2334 ev_init (&pipe_w, pipecb);
1641 ev_set_priority (&pipe_w, EV_MAXPRI); 2335 ev_set_priority (&pipe_w, EV_MAXPRI);
2336#endif
1642 } 2337 }
1643} 2338}
1644 2339
1645/* free up a loop structure */ 2340/* free up a loop structure */
1646static void noinline 2341void ecb_cold
1647loop_destroy (EV_P) 2342ev_loop_destroy (EV_P)
1648{ 2343{
1649 int i; 2344 int i;
2345
2346#if EV_MULTIPLICITY
2347 /* mimic free (0) */
2348 if (!EV_A)
2349 return;
2350#endif
2351
2352#if EV_CLEANUP_ENABLE
2353 /* queue cleanup watchers (and execute them) */
2354 if (expect_false (cleanupcnt))
2355 {
2356 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2357 EV_INVOKE_PENDING;
2358 }
2359#endif
2360
2361#if EV_CHILD_ENABLE
2362 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2363 {
2364 ev_ref (EV_A); /* child watcher */
2365 ev_signal_stop (EV_A_ &childev);
2366 }
2367#endif
1650 2368
1651 if (ev_is_active (&pipe_w)) 2369 if (ev_is_active (&pipe_w))
1652 { 2370 {
1653 /*ev_ref (EV_A);*/ 2371 /*ev_ref (EV_A);*/
1654 /*ev_io_stop (EV_A_ &pipe_w);*/ 2372 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1676#endif 2394#endif
1677 2395
1678 if (backend_fd >= 0) 2396 if (backend_fd >= 0)
1679 close (backend_fd); 2397 close (backend_fd);
1680 2398
2399#if EV_USE_IOCP
2400 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2401#endif
1681#if EV_USE_PORT 2402#if EV_USE_PORT
1682 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2403 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1683#endif 2404#endif
1684#if EV_USE_KQUEUE 2405#if EV_USE_KQUEUE
1685 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2406 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1712 array_free (periodic, EMPTY); 2433 array_free (periodic, EMPTY);
1713#endif 2434#endif
1714#if EV_FORK_ENABLE 2435#if EV_FORK_ENABLE
1715 array_free (fork, EMPTY); 2436 array_free (fork, EMPTY);
1716#endif 2437#endif
2438#if EV_CLEANUP_ENABLE
2439 array_free (cleanup, EMPTY);
2440#endif
1717 array_free (prepare, EMPTY); 2441 array_free (prepare, EMPTY);
1718 array_free (check, EMPTY); 2442 array_free (check, EMPTY);
1719#if EV_ASYNC_ENABLE 2443#if EV_ASYNC_ENABLE
1720 array_free (async, EMPTY); 2444 array_free (async, EMPTY);
1721#endif 2445#endif
1722 2446
1723 backend = 0; 2447 backend = 0;
2448
2449#if EV_MULTIPLICITY
2450 if (ev_is_default_loop (EV_A))
2451#endif
2452 ev_default_loop_ptr = 0;
2453#if EV_MULTIPLICITY
2454 else
2455 ev_free (EV_A);
2456#endif
1724} 2457}
1725 2458
1726#if EV_USE_INOTIFY 2459#if EV_USE_INOTIFY
1727inline_size void infy_fork (EV_P); 2460inline_size void infy_fork (EV_P);
1728#endif 2461#endif
… …
1743 infy_fork (EV_A); 2476 infy_fork (EV_A);
1744#endif 2477#endif
1745 2478
1746 if (ev_is_active (&pipe_w)) 2479 if (ev_is_active (&pipe_w))
1747 { 2480 {
1748 /* this "locks" the handlers against writing to the pipe */ 2481 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1749 /* while we modify the fd vars */
1750 sig_pending = 1;
1751#if EV_ASYNC_ENABLE
1752 async_pending = 1;
1753#endif
1754 2482
1755 ev_ref (EV_A); 2483 ev_ref (EV_A);
1756 ev_io_stop (EV_A_ &pipe_w); 2484 ev_io_stop (EV_A_ &pipe_w);
1757 2485
1758#if EV_USE_EVENTFD 2486#if EV_USE_EVENTFD
… …
1764 { 2492 {
1765 EV_WIN32_CLOSE_FD (evpipe [0]); 2493 EV_WIN32_CLOSE_FD (evpipe [0]);
1766 EV_WIN32_CLOSE_FD (evpipe [1]); 2494 EV_WIN32_CLOSE_FD (evpipe [1]);
1767 } 2495 }
1768 2496
2497#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1769 evpipe_init (EV_A); 2498 evpipe_init (EV_A);
1770 /* now iterate over everything, in case we missed something */ 2499 /* now iterate over everything, in case we missed something */
1771 pipecb (EV_A_ &pipe_w, EV_READ); 2500 pipecb (EV_A_ &pipe_w, EV_READ);
2501#endif
1772 } 2502 }
1773 2503
1774 postfork = 0; 2504 postfork = 0;
1775} 2505}
1776 2506
1777#if EV_MULTIPLICITY 2507#if EV_MULTIPLICITY
1778 2508
1779struct ev_loop * 2509struct ev_loop * ecb_cold
1780ev_loop_new (unsigned int flags) 2510ev_loop_new (unsigned int flags) EV_THROW
1781{ 2511{
1782 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2512 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1783 2513
1784 memset (EV_A, 0, sizeof (struct ev_loop)); 2514 memset (EV_A, 0, sizeof (struct ev_loop));
1785 loop_init (EV_A_ flags); 2515 loop_init (EV_A_ flags);
1786 2516
1787 if (ev_backend (EV_A)) 2517 if (ev_backend (EV_A))
1788 return EV_A; 2518 return EV_A;
1789 2519
2520 ev_free (EV_A);
1790 return 0; 2521 return 0;
1791} 2522}
1792 2523
1793void
1794ev_loop_destroy (EV_P)
1795{
1796 loop_destroy (EV_A);
1797 ev_free (loop);
1798}
1799
1800void
1801ev_loop_fork (EV_P)
1802{
1803 postfork = 1; /* must be in line with ev_default_fork */
1804}
1805#endif /* multiplicity */ 2524#endif /* multiplicity */
1806 2525
1807#if EV_VERIFY 2526#if EV_VERIFY
1808static void noinline 2527static void noinline ecb_cold
1809verify_watcher (EV_P_ W w) 2528verify_watcher (EV_P_ W w)
1810{ 2529{
1811 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2530 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1812 2531
1813 if (w->pending) 2532 if (w->pending)
1814 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2533 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1815} 2534}
1816 2535
1817static void noinline 2536static void noinline ecb_cold
1818verify_heap (EV_P_ ANHE *heap, int N) 2537verify_heap (EV_P_ ANHE *heap, int N)
1819{ 2538{
1820 int i; 2539 int i;
1821 2540
1822 for (i = HEAP0; i < N + HEAP0; ++i) 2541 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1827 2546
1828 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2547 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1829 } 2548 }
1830} 2549}
1831 2550
1832static void noinline 2551static void noinline ecb_cold
1833array_verify (EV_P_ W *ws, int cnt) 2552array_verify (EV_P_ W *ws, int cnt)
1834{ 2553{
1835 while (cnt--) 2554 while (cnt--)
1836 { 2555 {
1837 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2556 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1838 verify_watcher (EV_A_ ws [cnt]); 2557 verify_watcher (EV_A_ ws [cnt]);
1839 } 2558 }
1840} 2559}
1841#endif 2560#endif
1842 2561
1843#if EV_MINIMAL < 2 2562#if EV_FEATURE_API
1844void 2563void ecb_cold
1845ev_loop_verify (EV_P) 2564ev_verify (EV_P) EV_THROW
1846{ 2565{
1847#if EV_VERIFY 2566#if EV_VERIFY
1848 int i; 2567 int i;
1849 WL w; 2568 WL w, w2;
1850 2569
1851 assert (activecnt >= -1); 2570 assert (activecnt >= -1);
1852 2571
1853 assert (fdchangemax >= fdchangecnt); 2572 assert (fdchangemax >= fdchangecnt);
1854 for (i = 0; i < fdchangecnt; ++i) 2573 for (i = 0; i < fdchangecnt; ++i)
1855 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2574 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1856 2575
1857 assert (anfdmax >= 0); 2576 assert (anfdmax >= 0);
1858 for (i = 0; i < anfdmax; ++i) 2577 for (i = 0; i < anfdmax; ++i)
2578 {
2579 int j = 0;
2580
1859 for (w = anfds [i].head; w; w = w->next) 2581 for (w = w2 = anfds [i].head; w; w = w->next)
1860 { 2582 {
1861 verify_watcher (EV_A_ (W)w); 2583 verify_watcher (EV_A_ (W)w);
2584
2585 if (j++ & 1)
2586 {
2587 assert (("libev: io watcher list contains a loop", w != w2));
2588 w2 = w2->next;
2589 }
2590
1862 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2591 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1863 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2592 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1864 } 2593 }
2594 }
1865 2595
1866 assert (timermax >= timercnt); 2596 assert (timermax >= timercnt);
1867 verify_heap (EV_A_ timers, timercnt); 2597 verify_heap (EV_A_ timers, timercnt);
1868 2598
1869#if EV_PERIODIC_ENABLE 2599#if EV_PERIODIC_ENABLE
… …
1884#if EV_FORK_ENABLE 2614#if EV_FORK_ENABLE
1885 assert (forkmax >= forkcnt); 2615 assert (forkmax >= forkcnt);
1886 array_verify (EV_A_ (W *)forks, forkcnt); 2616 array_verify (EV_A_ (W *)forks, forkcnt);
1887#endif 2617#endif
1888 2618
2619#if EV_CLEANUP_ENABLE
2620 assert (cleanupmax >= cleanupcnt);
2621 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2622#endif
2623
1889#if EV_ASYNC_ENABLE 2624#if EV_ASYNC_ENABLE
1890 assert (asyncmax >= asynccnt); 2625 assert (asyncmax >= asynccnt);
1891 array_verify (EV_A_ (W *)asyncs, asynccnt); 2626 array_verify (EV_A_ (W *)asyncs, asynccnt);
1892#endif 2627#endif
1893 2628
2629#if EV_PREPARE_ENABLE
1894 assert (preparemax >= preparecnt); 2630 assert (preparemax >= preparecnt);
1895 array_verify (EV_A_ (W *)prepares, preparecnt); 2631 array_verify (EV_A_ (W *)prepares, preparecnt);
2632#endif
1896 2633
2634#if EV_CHECK_ENABLE
1897 assert (checkmax >= checkcnt); 2635 assert (checkmax >= checkcnt);
1898 array_verify (EV_A_ (W *)checks, checkcnt); 2636 array_verify (EV_A_ (W *)checks, checkcnt);
2637#endif
1899 2638
1900# if 0 2639# if 0
2640#if EV_CHILD_ENABLE
1901 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2641 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1902 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2642 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2643#endif
1903# endif 2644# endif
1904#endif 2645#endif
1905} 2646}
1906#endif 2647#endif
1907 2648
1908#if EV_MULTIPLICITY 2649#if EV_MULTIPLICITY
1909struct ev_loop * 2650struct ev_loop * ecb_cold
1910ev_default_loop_init (unsigned int flags)
1911#else 2651#else
1912int 2652int
2653#endif
1913ev_default_loop (unsigned int flags) 2654ev_default_loop (unsigned int flags) EV_THROW
1914#endif
1915{ 2655{
1916 if (!ev_default_loop_ptr) 2656 if (!ev_default_loop_ptr)
1917 { 2657 {
1918#if EV_MULTIPLICITY 2658#if EV_MULTIPLICITY
1919 EV_P = ev_default_loop_ptr = &default_loop_struct; 2659 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1923 2663
1924 loop_init (EV_A_ flags); 2664 loop_init (EV_A_ flags);
1925 2665
1926 if (ev_backend (EV_A)) 2666 if (ev_backend (EV_A))
1927 { 2667 {
1928#ifndef _WIN32 2668#if EV_CHILD_ENABLE
1929 ev_signal_init (&childev, childcb, SIGCHLD); 2669 ev_signal_init (&childev, childcb, SIGCHLD);
1930 ev_set_priority (&childev, EV_MAXPRI); 2670 ev_set_priority (&childev, EV_MAXPRI);
1931 ev_signal_start (EV_A_ &childev); 2671 ev_signal_start (EV_A_ &childev);
1932 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2672 ev_unref (EV_A); /* child watcher should not keep loop alive */
1933#endif 2673#endif
… …
1938 2678
1939 return ev_default_loop_ptr; 2679 return ev_default_loop_ptr;
1940} 2680}
1941 2681
1942void 2682void
1943ev_default_destroy (void) 2683ev_loop_fork (EV_P) EV_THROW
1944{ 2684{
1945#if EV_MULTIPLICITY
1946 EV_P = ev_default_loop_ptr;
1947#endif
1948
1949 ev_default_loop_ptr = 0;
1950
1951#ifndef _WIN32
1952 ev_ref (EV_A); /* child watcher */
1953 ev_signal_stop (EV_A_ &childev);
1954#endif
1955
1956 loop_destroy (EV_A);
1957}
1958
1959void
1960ev_default_fork (void)
1961{
1962#if EV_MULTIPLICITY
1963 EV_P = ev_default_loop_ptr;
1964#endif
1965
1966 postfork = 1; /* must be in line with ev_loop_fork */ 2685 postfork = 1; /* must be in line with ev_default_fork */
1967} 2686}
1968 2687
1969/*****************************************************************************/ 2688/*****************************************************************************/
1970 2689
1971void 2690void
… …
1973{ 2692{
1974 EV_CB_INVOKE ((W)w, revents); 2693 EV_CB_INVOKE ((W)w, revents);
1975} 2694}
1976 2695
1977unsigned int 2696unsigned int
1978ev_pending_count (EV_P) 2697ev_pending_count (EV_P) EV_THROW
1979{ 2698{
1980 int pri; 2699 int pri;
1981 unsigned int count = 0; 2700 unsigned int count = 0;
1982 2701
1983 for (pri = NUMPRI; pri--; ) 2702 for (pri = NUMPRI; pri--; )
… …
1987} 2706}
1988 2707
1989void noinline 2708void noinline
1990ev_invoke_pending (EV_P) 2709ev_invoke_pending (EV_P)
1991{ 2710{
1992 int pri; 2711 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
1993
1994 for (pri = NUMPRI; pri--; )
1995 while (pendingcnt [pri]) 2712 while (pendingcnt [pendingpri])
1996 { 2713 {
1997 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2714 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
1998
1999 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2000 /* ^ this is no longer true, as pending_w could be here */
2001 2715
2002 p->w->pending = 0; 2716 p->w->pending = 0;
2003 EV_CB_INVOKE (p->w, p->events); 2717 EV_CB_INVOKE (p->w, p->events);
2004 EV_FREQUENT_CHECK; 2718 EV_FREQUENT_CHECK;
2005 } 2719 }
… …
2062 EV_FREQUENT_CHECK; 2776 EV_FREQUENT_CHECK;
2063 feed_reverse (EV_A_ (W)w); 2777 feed_reverse (EV_A_ (W)w);
2064 } 2778 }
2065 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2779 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2066 2780
2067 feed_reverse_done (EV_A_ EV_TIMEOUT); 2781 feed_reverse_done (EV_A_ EV_TIMER);
2068 } 2782 }
2069} 2783}
2070 2784
2071#if EV_PERIODIC_ENABLE 2785#if EV_PERIODIC_ENABLE
2786
2787static void noinline
2788periodic_recalc (EV_P_ ev_periodic *w)
2789{
2790 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2791 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2792
2793 /* the above almost always errs on the low side */
2794 while (at <= ev_rt_now)
2795 {
2796 ev_tstamp nat = at + w->interval;
2797
2798 /* when resolution fails us, we use ev_rt_now */
2799 if (expect_false (nat == at))
2800 {
2801 at = ev_rt_now;
2802 break;
2803 }
2804
2805 at = nat;
2806 }
2807
2808 ev_at (w) = at;
2809}
2810
2072/* make periodics pending */ 2811/* make periodics pending */
2073inline_size void 2812inline_size void
2074periodics_reify (EV_P) 2813periodics_reify (EV_P)
2075{ 2814{
2076 EV_FREQUENT_CHECK; 2815 EV_FREQUENT_CHECK;
2077 2816
2078 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2817 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2079 { 2818 {
2080 int feed_count = 0;
2081
2082 do 2819 do
2083 { 2820 {
2084 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2821 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2085 2822
2086 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2823 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2095 ANHE_at_cache (periodics [HEAP0]); 2832 ANHE_at_cache (periodics [HEAP0]);
2096 downheap (periodics, periodiccnt, HEAP0); 2833 downheap (periodics, periodiccnt, HEAP0);
2097 } 2834 }
2098 else if (w->interval) 2835 else if (w->interval)
2099 { 2836 {
2100 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2837 periodic_recalc (EV_A_ w);
2101 /* if next trigger time is not sufficiently in the future, put it there */
2102 /* this might happen because of floating point inexactness */
2103 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2104 {
2105 ev_at (w) += w->interval;
2106
2107 /* if interval is unreasonably low we might still have a time in the past */
2108 /* so correct this. this will make the periodic very inexact, but the user */
2109 /* has effectively asked to get triggered more often than possible */
2110 if (ev_at (w) < ev_rt_now)
2111 ev_at (w) = ev_rt_now;
2112 }
2113
2114 ANHE_at_cache (periodics [HEAP0]); 2838 ANHE_at_cache (periodics [HEAP0]);
2115 downheap (periodics, periodiccnt, HEAP0); 2839 downheap (periodics, periodiccnt, HEAP0);
2116 } 2840 }
2117 else 2841 else
2118 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2842 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2125 feed_reverse_done (EV_A_ EV_PERIODIC); 2849 feed_reverse_done (EV_A_ EV_PERIODIC);
2126 } 2850 }
2127} 2851}
2128 2852
2129/* simply recalculate all periodics */ 2853/* simply recalculate all periodics */
2130/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2854/* TODO: maybe ensure that at least one event happens when jumping forward? */
2131static void noinline 2855static void noinline ecb_cold
2132periodics_reschedule (EV_P) 2856periodics_reschedule (EV_P)
2133{ 2857{
2134 int i; 2858 int i;
2135 2859
2136 /* adjust periodics after time jump */ 2860 /* adjust periodics after time jump */
… …
2139 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2863 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2140 2864
2141 if (w->reschedule_cb) 2865 if (w->reschedule_cb)
2142 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2866 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2143 else if (w->interval) 2867 else if (w->interval)
2144 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2868 periodic_recalc (EV_A_ w);
2145 2869
2146 ANHE_at_cache (periodics [i]); 2870 ANHE_at_cache (periodics [i]);
2147 } 2871 }
2148 2872
2149 reheap (periodics, periodiccnt); 2873 reheap (periodics, periodiccnt);
2150} 2874}
2151#endif 2875#endif
2152 2876
2153/* adjust all timers by a given offset */ 2877/* adjust all timers by a given offset */
2154static void noinline 2878static void noinline ecb_cold
2155timers_reschedule (EV_P_ ev_tstamp adjust) 2879timers_reschedule (EV_P_ ev_tstamp adjust)
2156{ 2880{
2157 int i; 2881 int i;
2158 2882
2159 for (i = 0; i < timercnt; ++i) 2883 for (i = 0; i < timercnt; ++i)
… …
2196 * doesn't hurt either as we only do this on time-jumps or 2920 * doesn't hurt either as we only do this on time-jumps or
2197 * in the unlikely event of having been preempted here. 2921 * in the unlikely event of having been preempted here.
2198 */ 2922 */
2199 for (i = 4; --i; ) 2923 for (i = 4; --i; )
2200 { 2924 {
2925 ev_tstamp diff;
2201 rtmn_diff = ev_rt_now - mn_now; 2926 rtmn_diff = ev_rt_now - mn_now;
2202 2927
2928 diff = odiff - rtmn_diff;
2929
2203 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2930 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2204 return; /* all is well */ 2931 return; /* all is well */
2205 2932
2206 ev_rt_now = ev_time (); 2933 ev_rt_now = ev_time ();
2207 mn_now = get_clock (); 2934 mn_now = get_clock ();
2208 now_floor = mn_now; 2935 now_floor = mn_now;
… …
2230 2957
2231 mn_now = ev_rt_now; 2958 mn_now = ev_rt_now;
2232 } 2959 }
2233} 2960}
2234 2961
2235void 2962int
2236ev_loop (EV_P_ int flags) 2963ev_run (EV_P_ int flags)
2237{ 2964{
2238#if EV_MINIMAL < 2 2965#if EV_FEATURE_API
2239 ++loop_depth; 2966 ++loop_depth;
2240#endif 2967#endif
2241 2968
2242 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2969 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2243 2970
2244 loop_done = EVUNLOOP_CANCEL; 2971 loop_done = EVBREAK_CANCEL;
2245 2972
2246 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2973 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2247 2974
2248 do 2975 do
2249 { 2976 {
2250#if EV_VERIFY >= 2 2977#if EV_VERIFY >= 2
2251 ev_loop_verify (EV_A); 2978 ev_verify (EV_A);
2252#endif 2979#endif
2253 2980
2254#ifndef _WIN32 2981#ifndef _WIN32
2255 if (expect_false (curpid)) /* penalise the forking check even more */ 2982 if (expect_false (curpid)) /* penalise the forking check even more */
2256 if (expect_false (getpid () != curpid)) 2983 if (expect_false (getpid () != curpid))
… …
2268 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2995 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2269 EV_INVOKE_PENDING; 2996 EV_INVOKE_PENDING;
2270 } 2997 }
2271#endif 2998#endif
2272 2999
3000#if EV_PREPARE_ENABLE
2273 /* queue prepare watchers (and execute them) */ 3001 /* queue prepare watchers (and execute them) */
2274 if (expect_false (preparecnt)) 3002 if (expect_false (preparecnt))
2275 { 3003 {
2276 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3004 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2277 EV_INVOKE_PENDING; 3005 EV_INVOKE_PENDING;
2278 } 3006 }
3007#endif
2279 3008
2280 if (expect_false (loop_done)) 3009 if (expect_false (loop_done))
2281 break; 3010 break;
2282 3011
2283 /* we might have forked, so reify kernel state if necessary */ 3012 /* we might have forked, so reify kernel state if necessary */
… …
2290 /* calculate blocking time */ 3019 /* calculate blocking time */
2291 { 3020 {
2292 ev_tstamp waittime = 0.; 3021 ev_tstamp waittime = 0.;
2293 ev_tstamp sleeptime = 0.; 3022 ev_tstamp sleeptime = 0.;
2294 3023
3024 /* remember old timestamp for io_blocktime calculation */
3025 ev_tstamp prev_mn_now = mn_now;
3026
3027 /* update time to cancel out callback processing overhead */
3028 time_update (EV_A_ 1e100);
3029
3030 /* from now on, we want a pipe-wake-up */
3031 pipe_write_wanted = 1;
3032
3033 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3034
2295 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3035 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2296 { 3036 {
2297 /* remember old timestamp for io_blocktime calculation */
2298 ev_tstamp prev_mn_now = mn_now;
2299
2300 /* update time to cancel out callback processing overhead */
2301 time_update (EV_A_ 1e100);
2302
2303 waittime = MAX_BLOCKTIME; 3037 waittime = MAX_BLOCKTIME;
2304 3038
2305 if (timercnt) 3039 if (timercnt)
2306 { 3040 {
2307 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3041 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2308 if (waittime > to) waittime = to; 3042 if (waittime > to) waittime = to;
2309 } 3043 }
2310 3044
2311#if EV_PERIODIC_ENABLE 3045#if EV_PERIODIC_ENABLE
2312 if (periodiccnt) 3046 if (periodiccnt)
2313 { 3047 {
2314 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3048 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2315 if (waittime > to) waittime = to; 3049 if (waittime > to) waittime = to;
2316 } 3050 }
2317#endif 3051#endif
2318 3052
2319 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3053 /* don't let timeouts decrease the waittime below timeout_blocktime */
2320 if (expect_false (waittime < timeout_blocktime)) 3054 if (expect_false (waittime < timeout_blocktime))
2321 waittime = timeout_blocktime; 3055 waittime = timeout_blocktime;
3056
3057 /* at this point, we NEED to wait, so we have to ensure */
3058 /* to pass a minimum nonzero value to the backend */
3059 if (expect_false (waittime < backend_mintime))
3060 waittime = backend_mintime;
2322 3061
2323 /* extra check because io_blocktime is commonly 0 */ 3062 /* extra check because io_blocktime is commonly 0 */
2324 if (expect_false (io_blocktime)) 3063 if (expect_false (io_blocktime))
2325 { 3064 {
2326 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3065 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2327 3066
2328 if (sleeptime > waittime - backend_fudge) 3067 if (sleeptime > waittime - backend_mintime)
2329 sleeptime = waittime - backend_fudge; 3068 sleeptime = waittime - backend_mintime;
2330 3069
2331 if (expect_true (sleeptime > 0.)) 3070 if (expect_true (sleeptime > 0.))
2332 { 3071 {
2333 ev_sleep (sleeptime); 3072 ev_sleep (sleeptime);
2334 waittime -= sleeptime; 3073 waittime -= sleeptime;
2335 } 3074 }
2336 } 3075 }
2337 } 3076 }
2338 3077
2339#if EV_MINIMAL < 2 3078#if EV_FEATURE_API
2340 ++loop_count; 3079 ++loop_count;
2341#endif 3080#endif
2342 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3081 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2343 backend_poll (EV_A_ waittime); 3082 backend_poll (EV_A_ waittime);
2344 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3083 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3084
3085 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3086
3087 if (pipe_write_skipped)
3088 {
3089 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3090 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3091 }
3092
2345 3093
2346 /* update ev_rt_now, do magic */ 3094 /* update ev_rt_now, do magic */
2347 time_update (EV_A_ waittime + sleeptime); 3095 time_update (EV_A_ waittime + sleeptime);
2348 } 3096 }
2349 3097
… …
2356#if EV_IDLE_ENABLE 3104#if EV_IDLE_ENABLE
2357 /* queue idle watchers unless other events are pending */ 3105 /* queue idle watchers unless other events are pending */
2358 idle_reify (EV_A); 3106 idle_reify (EV_A);
2359#endif 3107#endif
2360 3108
3109#if EV_CHECK_ENABLE
2361 /* queue check watchers, to be executed first */ 3110 /* queue check watchers, to be executed first */
2362 if (expect_false (checkcnt)) 3111 if (expect_false (checkcnt))
2363 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3112 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3113#endif
2364 3114
2365 EV_INVOKE_PENDING; 3115 EV_INVOKE_PENDING;
2366 } 3116 }
2367 while (expect_true ( 3117 while (expect_true (
2368 activecnt 3118 activecnt
2369 && !loop_done 3119 && !loop_done
2370 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3120 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2371 )); 3121 ));
2372 3122
2373 if (loop_done == EVUNLOOP_ONE) 3123 if (loop_done == EVBREAK_ONE)
2374 loop_done = EVUNLOOP_CANCEL; 3124 loop_done = EVBREAK_CANCEL;
2375 3125
2376#if EV_MINIMAL < 2 3126#if EV_FEATURE_API
2377 --loop_depth; 3127 --loop_depth;
2378#endif 3128#endif
3129
3130 return activecnt;
2379} 3131}
2380 3132
2381void 3133void
2382ev_unloop (EV_P_ int how) 3134ev_break (EV_P_ int how) EV_THROW
2383{ 3135{
2384 loop_done = how; 3136 loop_done = how;
2385} 3137}
2386 3138
2387void 3139void
2388ev_ref (EV_P) 3140ev_ref (EV_P) EV_THROW
2389{ 3141{
2390 ++activecnt; 3142 ++activecnt;
2391} 3143}
2392 3144
2393void 3145void
2394ev_unref (EV_P) 3146ev_unref (EV_P) EV_THROW
2395{ 3147{
2396 --activecnt; 3148 --activecnt;
2397} 3149}
2398 3150
2399void 3151void
2400ev_now_update (EV_P) 3152ev_now_update (EV_P) EV_THROW
2401{ 3153{
2402 time_update (EV_A_ 1e100); 3154 time_update (EV_A_ 1e100);
2403} 3155}
2404 3156
2405void 3157void
2406ev_suspend (EV_P) 3158ev_suspend (EV_P) EV_THROW
2407{ 3159{
2408 ev_now_update (EV_A); 3160 ev_now_update (EV_A);
2409} 3161}
2410 3162
2411void 3163void
2412ev_resume (EV_P) 3164ev_resume (EV_P) EV_THROW
2413{ 3165{
2414 ev_tstamp mn_prev = mn_now; 3166 ev_tstamp mn_prev = mn_now;
2415 3167
2416 ev_now_update (EV_A); 3168 ev_now_update (EV_A);
2417 timers_reschedule (EV_A_ mn_now - mn_prev); 3169 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2456 w->pending = 0; 3208 w->pending = 0;
2457 } 3209 }
2458} 3210}
2459 3211
2460int 3212int
2461ev_clear_pending (EV_P_ void *w) 3213ev_clear_pending (EV_P_ void *w) EV_THROW
2462{ 3214{
2463 W w_ = (W)w; 3215 W w_ = (W)w;
2464 int pending = w_->pending; 3216 int pending = w_->pending;
2465 3217
2466 if (expect_true (pending)) 3218 if (expect_true (pending))
… …
2499} 3251}
2500 3252
2501/*****************************************************************************/ 3253/*****************************************************************************/
2502 3254
2503void noinline 3255void noinline
2504ev_io_start (EV_P_ ev_io *w) 3256ev_io_start (EV_P_ ev_io *w) EV_THROW
2505{ 3257{
2506 int fd = w->fd; 3258 int fd = w->fd;
2507 3259
2508 if (expect_false (ev_is_active (w))) 3260 if (expect_false (ev_is_active (w)))
2509 return; 3261 return;
2510 3262
2511 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3263 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2512 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3264 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2513 3265
2514 EV_FREQUENT_CHECK; 3266 EV_FREQUENT_CHECK;
2515 3267
2516 ev_start (EV_A_ (W)w, 1); 3268 ev_start (EV_A_ (W)w, 1);
2517 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3269 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2518 wlist_add (&anfds[fd].head, (WL)w); 3270 wlist_add (&anfds[fd].head, (WL)w);
2519 3271
3272 /* common bug, apparently */
3273 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3274
2520 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3275 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2521 w->events &= ~EV__IOFDSET; 3276 w->events &= ~EV__IOFDSET;
2522 3277
2523 EV_FREQUENT_CHECK; 3278 EV_FREQUENT_CHECK;
2524} 3279}
2525 3280
2526void noinline 3281void noinline
2527ev_io_stop (EV_P_ ev_io *w) 3282ev_io_stop (EV_P_ ev_io *w) EV_THROW
2528{ 3283{
2529 clear_pending (EV_A_ (W)w); 3284 clear_pending (EV_A_ (W)w);
2530 if (expect_false (!ev_is_active (w))) 3285 if (expect_false (!ev_is_active (w)))
2531 return; 3286 return;
2532 3287
… …
2535 EV_FREQUENT_CHECK; 3290 EV_FREQUENT_CHECK;
2536 3291
2537 wlist_del (&anfds[w->fd].head, (WL)w); 3292 wlist_del (&anfds[w->fd].head, (WL)w);
2538 ev_stop (EV_A_ (W)w); 3293 ev_stop (EV_A_ (W)w);
2539 3294
2540 fd_change (EV_A_ w->fd, 1); 3295 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2541 3296
2542 EV_FREQUENT_CHECK; 3297 EV_FREQUENT_CHECK;
2543} 3298}
2544 3299
2545void noinline 3300void noinline
2546ev_timer_start (EV_P_ ev_timer *w) 3301ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2547{ 3302{
2548 if (expect_false (ev_is_active (w))) 3303 if (expect_false (ev_is_active (w)))
2549 return; 3304 return;
2550 3305
2551 ev_at (w) += mn_now; 3306 ev_at (w) += mn_now;
… …
2565 3320
2566 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3321 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2567} 3322}
2568 3323
2569void noinline 3324void noinline
2570ev_timer_stop (EV_P_ ev_timer *w) 3325ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2571{ 3326{
2572 clear_pending (EV_A_ (W)w); 3327 clear_pending (EV_A_ (W)w);
2573 if (expect_false (!ev_is_active (w))) 3328 if (expect_false (!ev_is_active (w)))
2574 return; 3329 return;
2575 3330
… …
2587 timers [active] = timers [timercnt + HEAP0]; 3342 timers [active] = timers [timercnt + HEAP0];
2588 adjustheap (timers, timercnt, active); 3343 adjustheap (timers, timercnt, active);
2589 } 3344 }
2590 } 3345 }
2591 3346
2592 EV_FREQUENT_CHECK;
2593
2594 ev_at (w) -= mn_now; 3347 ev_at (w) -= mn_now;
2595 3348
2596 ev_stop (EV_A_ (W)w); 3349 ev_stop (EV_A_ (W)w);
3350
3351 EV_FREQUENT_CHECK;
2597} 3352}
2598 3353
2599void noinline 3354void noinline
2600ev_timer_again (EV_P_ ev_timer *w) 3355ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2601{ 3356{
2602 EV_FREQUENT_CHECK; 3357 EV_FREQUENT_CHECK;
3358
3359 clear_pending (EV_A_ (W)w);
2603 3360
2604 if (ev_is_active (w)) 3361 if (ev_is_active (w))
2605 { 3362 {
2606 if (w->repeat) 3363 if (w->repeat)
2607 { 3364 {
… …
2620 3377
2621 EV_FREQUENT_CHECK; 3378 EV_FREQUENT_CHECK;
2622} 3379}
2623 3380
2624ev_tstamp 3381ev_tstamp
2625ev_timer_remaining (EV_P_ ev_timer *w) 3382ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2626{ 3383{
2627 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3384 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2628} 3385}
2629 3386
2630#if EV_PERIODIC_ENABLE 3387#if EV_PERIODIC_ENABLE
2631void noinline 3388void noinline
2632ev_periodic_start (EV_P_ ev_periodic *w) 3389ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2633{ 3390{
2634 if (expect_false (ev_is_active (w))) 3391 if (expect_false (ev_is_active (w)))
2635 return; 3392 return;
2636 3393
2637 if (w->reschedule_cb) 3394 if (w->reschedule_cb)
2638 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3395 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2639 else if (w->interval) 3396 else if (w->interval)
2640 { 3397 {
2641 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3398 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2642 /* this formula differs from the one in periodic_reify because we do not always round up */ 3399 periodic_recalc (EV_A_ w);
2643 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2644 } 3400 }
2645 else 3401 else
2646 ev_at (w) = w->offset; 3402 ev_at (w) = w->offset;
2647 3403
2648 EV_FREQUENT_CHECK; 3404 EV_FREQUENT_CHECK;
… …
2658 3414
2659 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3415 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2660} 3416}
2661 3417
2662void noinline 3418void noinline
2663ev_periodic_stop (EV_P_ ev_periodic *w) 3419ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2664{ 3420{
2665 clear_pending (EV_A_ (W)w); 3421 clear_pending (EV_A_ (W)w);
2666 if (expect_false (!ev_is_active (w))) 3422 if (expect_false (!ev_is_active (w)))
2667 return; 3423 return;
2668 3424
… …
2680 periodics [active] = periodics [periodiccnt + HEAP0]; 3436 periodics [active] = periodics [periodiccnt + HEAP0];
2681 adjustheap (periodics, periodiccnt, active); 3437 adjustheap (periodics, periodiccnt, active);
2682 } 3438 }
2683 } 3439 }
2684 3440
2685 EV_FREQUENT_CHECK;
2686
2687 ev_stop (EV_A_ (W)w); 3441 ev_stop (EV_A_ (W)w);
3442
3443 EV_FREQUENT_CHECK;
2688} 3444}
2689 3445
2690void noinline 3446void noinline
2691ev_periodic_again (EV_P_ ev_periodic *w) 3447ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2692{ 3448{
2693 /* TODO: use adjustheap and recalculation */ 3449 /* TODO: use adjustheap and recalculation */
2694 ev_periodic_stop (EV_A_ w); 3450 ev_periodic_stop (EV_A_ w);
2695 ev_periodic_start (EV_A_ w); 3451 ev_periodic_start (EV_A_ w);
2696} 3452}
… …
2698 3454
2699#ifndef SA_RESTART 3455#ifndef SA_RESTART
2700# define SA_RESTART 0 3456# define SA_RESTART 0
2701#endif 3457#endif
2702 3458
3459#if EV_SIGNAL_ENABLE
3460
2703void noinline 3461void noinline
2704ev_signal_start (EV_P_ ev_signal *w) 3462ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2705{ 3463{
2706 if (expect_false (ev_is_active (w))) 3464 if (expect_false (ev_is_active (w)))
2707 return; 3465 return;
2708 3466
2709 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3467 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2767 sa.sa_handler = ev_sighandler; 3525 sa.sa_handler = ev_sighandler;
2768 sigfillset (&sa.sa_mask); 3526 sigfillset (&sa.sa_mask);
2769 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3527 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2770 sigaction (w->signum, &sa, 0); 3528 sigaction (w->signum, &sa, 0);
2771 3529
3530 if (origflags & EVFLAG_NOSIGMASK)
3531 {
2772 sigemptyset (&sa.sa_mask); 3532 sigemptyset (&sa.sa_mask);
2773 sigaddset (&sa.sa_mask, w->signum); 3533 sigaddset (&sa.sa_mask, w->signum);
2774 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3534 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3535 }
2775#endif 3536#endif
2776 } 3537 }
2777 3538
2778 EV_FREQUENT_CHECK; 3539 EV_FREQUENT_CHECK;
2779} 3540}
2780 3541
2781void noinline 3542void noinline
2782ev_signal_stop (EV_P_ ev_signal *w) 3543ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2783{ 3544{
2784 clear_pending (EV_A_ (W)w); 3545 clear_pending (EV_A_ (W)w);
2785 if (expect_false (!ev_is_active (w))) 3546 if (expect_false (!ev_is_active (w)))
2786 return; 3547 return;
2787 3548
… …
2813 } 3574 }
2814 3575
2815 EV_FREQUENT_CHECK; 3576 EV_FREQUENT_CHECK;
2816} 3577}
2817 3578
3579#endif
3580
3581#if EV_CHILD_ENABLE
3582
2818void 3583void
2819ev_child_start (EV_P_ ev_child *w) 3584ev_child_start (EV_P_ ev_child *w) EV_THROW
2820{ 3585{
2821#if EV_MULTIPLICITY 3586#if EV_MULTIPLICITY
2822 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3587 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2823#endif 3588#endif
2824 if (expect_false (ev_is_active (w))) 3589 if (expect_false (ev_is_active (w)))
2825 return; 3590 return;
2826 3591
2827 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
2828 3593
2829 ev_start (EV_A_ (W)w, 1); 3594 ev_start (EV_A_ (W)w, 1);
2830 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3595 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2831 3596
2832 EV_FREQUENT_CHECK; 3597 EV_FREQUENT_CHECK;
2833} 3598}
2834 3599
2835void 3600void
2836ev_child_stop (EV_P_ ev_child *w) 3601ev_child_stop (EV_P_ ev_child *w) EV_THROW
2837{ 3602{
2838 clear_pending (EV_A_ (W)w); 3603 clear_pending (EV_A_ (W)w);
2839 if (expect_false (!ev_is_active (w))) 3604 if (expect_false (!ev_is_active (w)))
2840 return; 3605 return;
2841 3606
2842 EV_FREQUENT_CHECK; 3607 EV_FREQUENT_CHECK;
2843 3608
2844 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3609 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845 ev_stop (EV_A_ (W)w); 3610 ev_stop (EV_A_ (W)w);
2846 3611
2847 EV_FREQUENT_CHECK; 3612 EV_FREQUENT_CHECK;
2848} 3613}
3614
3615#endif
2849 3616
2850#if EV_STAT_ENABLE 3617#if EV_STAT_ENABLE
2851 3618
2852# ifdef _WIN32 3619# ifdef _WIN32
2853# undef lstat 3620# undef lstat
… …
2859#define MIN_STAT_INTERVAL 0.1074891 3626#define MIN_STAT_INTERVAL 0.1074891
2860 3627
2861static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3628static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2862 3629
2863#if EV_USE_INOTIFY 3630#if EV_USE_INOTIFY
2864# define EV_INOTIFY_BUFSIZE 8192 3631
3632/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3633# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2865 3634
2866static void noinline 3635static void noinline
2867infy_add (EV_P_ ev_stat *w) 3636infy_add (EV_P_ ev_stat *w)
2868{ 3637{
2869 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3638 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
… …
2912 if (!pend || pend == path) 3681 if (!pend || pend == path)
2913 break; 3682 break;
2914 3683
2915 *pend = 0; 3684 *pend = 0;
2916 w->wd = inotify_add_watch (fs_fd, path, mask); 3685 w->wd = inotify_add_watch (fs_fd, path, mask);
2917 } 3686 }
2918 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3687 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2919 } 3688 }
2920 } 3689 }
2921 3690
2922 if (w->wd >= 0) 3691 if (w->wd >= 0)
2923 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3692 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2924 3693
2925 /* now re-arm timer, if required */ 3694 /* now re-arm timer, if required */
2926 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3695 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2927 ev_timer_again (EV_A_ &w->timer); 3696 ev_timer_again (EV_A_ &w->timer);
2928 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3697 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2936 3705
2937 if (wd < 0) 3706 if (wd < 0)
2938 return; 3707 return;
2939 3708
2940 w->wd = -2; 3709 w->wd = -2;
2941 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3710 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2942 wlist_del (&fs_hash [slot].head, (WL)w); 3711 wlist_del (&fs_hash [slot].head, (WL)w);
2943 3712
2944 /* remove this watcher, if others are watching it, they will rearm */ 3713 /* remove this watcher, if others are watching it, they will rearm */
2945 inotify_rm_watch (fs_fd, wd); 3714 inotify_rm_watch (fs_fd, wd);
2946} 3715}
… …
2948static void noinline 3717static void noinline
2949infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3718infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2950{ 3719{
2951 if (slot < 0) 3720 if (slot < 0)
2952 /* overflow, need to check for all hash slots */ 3721 /* overflow, need to check for all hash slots */
2953 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3722 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2954 infy_wd (EV_A_ slot, wd, ev); 3723 infy_wd (EV_A_ slot, wd, ev);
2955 else 3724 else
2956 { 3725 {
2957 WL w_; 3726 WL w_;
2958 3727
2959 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3728 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2960 { 3729 {
2961 ev_stat *w = (ev_stat *)w_; 3730 ev_stat *w = (ev_stat *)w_;
2962 w_ = w_->next; /* lets us remove this watcher and all before it */ 3731 w_ = w_->next; /* lets us remove this watcher and all before it */
2963 3732
2964 if (w->wd == wd || wd == -1) 3733 if (w->wd == wd || wd == -1)
2965 { 3734 {
2966 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3735 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2967 { 3736 {
2968 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3737 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2969 w->wd = -1; 3738 w->wd = -1;
2970 infy_add (EV_A_ w); /* re-add, no matter what */ 3739 infy_add (EV_A_ w); /* re-add, no matter what */
2971 } 3740 }
2972 3741
2973 stat_timer_cb (EV_A_ &w->timer, 0); 3742 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2978 3747
2979static void 3748static void
2980infy_cb (EV_P_ ev_io *w, int revents) 3749infy_cb (EV_P_ ev_io *w, int revents)
2981{ 3750{
2982 char buf [EV_INOTIFY_BUFSIZE]; 3751 char buf [EV_INOTIFY_BUFSIZE];
2983 struct inotify_event *ev = (struct inotify_event *)buf;
2984 int ofs; 3752 int ofs;
2985 int len = read (fs_fd, buf, sizeof (buf)); 3753 int len = read (fs_fd, buf, sizeof (buf));
2986 3754
2987 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3755 for (ofs = 0; ofs < len; )
3756 {
3757 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2988 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3758 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3759 ofs += sizeof (struct inotify_event) + ev->len;
3760 }
2989} 3761}
2990 3762
2991inline_size void 3763inline_size void ecb_cold
2992check_2625 (EV_P) 3764ev_check_2625 (EV_P)
2993{ 3765{
2994 /* kernels < 2.6.25 are borked 3766 /* kernels < 2.6.25 are borked
2995 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3767 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2996 */ 3768 */
2997 struct utsname buf; 3769 if (ev_linux_version () < 0x020619)
2998 int major, minor, micro;
2999
3000 if (uname (&buf))
3001 return;
3002
3003 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
3004 return;
3005
3006 if (major < 2
3007 || (major == 2 && minor < 6)
3008 || (major == 2 && minor == 6 && micro < 25))
3009 return; 3770 return;
3010 3771
3011 fs_2625 = 1; 3772 fs_2625 = 1;
3012} 3773}
3013 3774
3014inline_size int 3775inline_size int
3015infy_newfd (void) 3776infy_newfd (void)
3016{ 3777{
3017#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3778#if defined IN_CLOEXEC && defined IN_NONBLOCK
3018 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3779 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3019 if (fd >= 0) 3780 if (fd >= 0)
3020 return fd; 3781 return fd;
3021#endif 3782#endif
3022 return inotify_init (); 3783 return inotify_init ();
… …
3028 if (fs_fd != -2) 3789 if (fs_fd != -2)
3029 return; 3790 return;
3030 3791
3031 fs_fd = -1; 3792 fs_fd = -1;
3032 3793
3033 check_2625 (EV_A); 3794 ev_check_2625 (EV_A);
3034 3795
3035 fs_fd = infy_newfd (); 3796 fs_fd = infy_newfd ();
3036 3797
3037 if (fs_fd >= 0) 3798 if (fs_fd >= 0)
3038 { 3799 {
… …
3063 ev_io_set (&fs_w, fs_fd, EV_READ); 3824 ev_io_set (&fs_w, fs_fd, EV_READ);
3064 ev_io_start (EV_A_ &fs_w); 3825 ev_io_start (EV_A_ &fs_w);
3065 ev_unref (EV_A); 3826 ev_unref (EV_A);
3066 } 3827 }
3067 3828
3068 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3829 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3069 { 3830 {
3070 WL w_ = fs_hash [slot].head; 3831 WL w_ = fs_hash [slot].head;
3071 fs_hash [slot].head = 0; 3832 fs_hash [slot].head = 0;
3072 3833
3073 while (w_) 3834 while (w_)
… …
3097#else 3858#else
3098# define EV_LSTAT(p,b) lstat (p, b) 3859# define EV_LSTAT(p,b) lstat (p, b)
3099#endif 3860#endif
3100 3861
3101void 3862void
3102ev_stat_stat (EV_P_ ev_stat *w) 3863ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3103{ 3864{
3104 if (lstat (w->path, &w->attr) < 0) 3865 if (lstat (w->path, &w->attr) < 0)
3105 w->attr.st_nlink = 0; 3866 w->attr.st_nlink = 0;
3106 else if (!w->attr.st_nlink) 3867 else if (!w->attr.st_nlink)
3107 w->attr.st_nlink = 1; 3868 w->attr.st_nlink = 1;
… …
3146 ev_feed_event (EV_A_ w, EV_STAT); 3907 ev_feed_event (EV_A_ w, EV_STAT);
3147 } 3908 }
3148} 3909}
3149 3910
3150void 3911void
3151ev_stat_start (EV_P_ ev_stat *w) 3912ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3152{ 3913{
3153 if (expect_false (ev_is_active (w))) 3914 if (expect_false (ev_is_active (w)))
3154 return; 3915 return;
3155 3916
3156 ev_stat_stat (EV_A_ w); 3917 ev_stat_stat (EV_A_ w);
… …
3177 3938
3178 EV_FREQUENT_CHECK; 3939 EV_FREQUENT_CHECK;
3179} 3940}
3180 3941
3181void 3942void
3182ev_stat_stop (EV_P_ ev_stat *w) 3943ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3183{ 3944{
3184 clear_pending (EV_A_ (W)w); 3945 clear_pending (EV_A_ (W)w);
3185 if (expect_false (!ev_is_active (w))) 3946 if (expect_false (!ev_is_active (w)))
3186 return; 3947 return;
3187 3948
… …
3203} 3964}
3204#endif 3965#endif
3205 3966
3206#if EV_IDLE_ENABLE 3967#if EV_IDLE_ENABLE
3207void 3968void
3208ev_idle_start (EV_P_ ev_idle *w) 3969ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3209{ 3970{
3210 if (expect_false (ev_is_active (w))) 3971 if (expect_false (ev_is_active (w)))
3211 return; 3972 return;
3212 3973
3213 pri_adjust (EV_A_ (W)w); 3974 pri_adjust (EV_A_ (W)w);
… …
3226 3987
3227 EV_FREQUENT_CHECK; 3988 EV_FREQUENT_CHECK;
3228} 3989}
3229 3990
3230void 3991void
3231ev_idle_stop (EV_P_ ev_idle *w) 3992ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3232{ 3993{
3233 clear_pending (EV_A_ (W)w); 3994 clear_pending (EV_A_ (W)w);
3234 if (expect_false (!ev_is_active (w))) 3995 if (expect_false (!ev_is_active (w)))
3235 return; 3996 return;
3236 3997
… …
3248 4009
3249 EV_FREQUENT_CHECK; 4010 EV_FREQUENT_CHECK;
3250} 4011}
3251#endif 4012#endif
3252 4013
4014#if EV_PREPARE_ENABLE
3253void 4015void
3254ev_prepare_start (EV_P_ ev_prepare *w) 4016ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3255{ 4017{
3256 if (expect_false (ev_is_active (w))) 4018 if (expect_false (ev_is_active (w)))
3257 return; 4019 return;
3258 4020
3259 EV_FREQUENT_CHECK; 4021 EV_FREQUENT_CHECK;
… …
3264 4026
3265 EV_FREQUENT_CHECK; 4027 EV_FREQUENT_CHECK;
3266} 4028}
3267 4029
3268void 4030void
3269ev_prepare_stop (EV_P_ ev_prepare *w) 4031ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3270{ 4032{
3271 clear_pending (EV_A_ (W)w); 4033 clear_pending (EV_A_ (W)w);
3272 if (expect_false (!ev_is_active (w))) 4034 if (expect_false (!ev_is_active (w)))
3273 return; 4035 return;
3274 4036
… …
3283 4045
3284 ev_stop (EV_A_ (W)w); 4046 ev_stop (EV_A_ (W)w);
3285 4047
3286 EV_FREQUENT_CHECK; 4048 EV_FREQUENT_CHECK;
3287} 4049}
4050#endif
3288 4051
4052#if EV_CHECK_ENABLE
3289void 4053void
3290ev_check_start (EV_P_ ev_check *w) 4054ev_check_start (EV_P_ ev_check *w) EV_THROW
3291{ 4055{
3292 if (expect_false (ev_is_active (w))) 4056 if (expect_false (ev_is_active (w)))
3293 return; 4057 return;
3294 4058
3295 EV_FREQUENT_CHECK; 4059 EV_FREQUENT_CHECK;
… …
3300 4064
3301 EV_FREQUENT_CHECK; 4065 EV_FREQUENT_CHECK;
3302} 4066}
3303 4067
3304void 4068void
3305ev_check_stop (EV_P_ ev_check *w) 4069ev_check_stop (EV_P_ ev_check *w) EV_THROW
3306{ 4070{
3307 clear_pending (EV_A_ (W)w); 4071 clear_pending (EV_A_ (W)w);
3308 if (expect_false (!ev_is_active (w))) 4072 if (expect_false (!ev_is_active (w)))
3309 return; 4073 return;
3310 4074
… …
3319 4083
3320 ev_stop (EV_A_ (W)w); 4084 ev_stop (EV_A_ (W)w);
3321 4085
3322 EV_FREQUENT_CHECK; 4086 EV_FREQUENT_CHECK;
3323} 4087}
4088#endif
3324 4089
3325#if EV_EMBED_ENABLE 4090#if EV_EMBED_ENABLE
3326void noinline 4091void noinline
3327ev_embed_sweep (EV_P_ ev_embed *w) 4092ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3328{ 4093{
3329 ev_loop (w->other, EVLOOP_NONBLOCK); 4094 ev_run (w->other, EVRUN_NOWAIT);
3330} 4095}
3331 4096
3332static void 4097static void
3333embed_io_cb (EV_P_ ev_io *io, int revents) 4098embed_io_cb (EV_P_ ev_io *io, int revents)
3334{ 4099{
3335 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4100 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3336 4101
3337 if (ev_cb (w)) 4102 if (ev_cb (w))
3338 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4103 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3339 else 4104 else
3340 ev_loop (w->other, EVLOOP_NONBLOCK); 4105 ev_run (w->other, EVRUN_NOWAIT);
3341} 4106}
3342 4107
3343static void 4108static void
3344embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4109embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3345{ 4110{
… …
3349 EV_P = w->other; 4114 EV_P = w->other;
3350 4115
3351 while (fdchangecnt) 4116 while (fdchangecnt)
3352 { 4117 {
3353 fd_reify (EV_A); 4118 fd_reify (EV_A);
3354 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4119 ev_run (EV_A_ EVRUN_NOWAIT);
3355 } 4120 }
3356 } 4121 }
3357} 4122}
3358 4123
3359static void 4124static void
… …
3365 4130
3366 { 4131 {
3367 EV_P = w->other; 4132 EV_P = w->other;
3368 4133
3369 ev_loop_fork (EV_A); 4134 ev_loop_fork (EV_A);
3370 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4135 ev_run (EV_A_ EVRUN_NOWAIT);
3371 } 4136 }
3372 4137
3373 ev_embed_start (EV_A_ w); 4138 ev_embed_start (EV_A_ w);
3374} 4139}
3375 4140
… …
3380 ev_idle_stop (EV_A_ idle); 4145 ev_idle_stop (EV_A_ idle);
3381} 4146}
3382#endif 4147#endif
3383 4148
3384void 4149void
3385ev_embed_start (EV_P_ ev_embed *w) 4150ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3386{ 4151{
3387 if (expect_false (ev_is_active (w))) 4152 if (expect_false (ev_is_active (w)))
3388 return; 4153 return;
3389 4154
3390 { 4155 {
… …
3411 4176
3412 EV_FREQUENT_CHECK; 4177 EV_FREQUENT_CHECK;
3413} 4178}
3414 4179
3415void 4180void
3416ev_embed_stop (EV_P_ ev_embed *w) 4181ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3417{ 4182{
3418 clear_pending (EV_A_ (W)w); 4183 clear_pending (EV_A_ (W)w);
3419 if (expect_false (!ev_is_active (w))) 4184 if (expect_false (!ev_is_active (w)))
3420 return; 4185 return;
3421 4186
… …
3423 4188
3424 ev_io_stop (EV_A_ &w->io); 4189 ev_io_stop (EV_A_ &w->io);
3425 ev_prepare_stop (EV_A_ &w->prepare); 4190 ev_prepare_stop (EV_A_ &w->prepare);
3426 ev_fork_stop (EV_A_ &w->fork); 4191 ev_fork_stop (EV_A_ &w->fork);
3427 4192
4193 ev_stop (EV_A_ (W)w);
4194
3428 EV_FREQUENT_CHECK; 4195 EV_FREQUENT_CHECK;
3429} 4196}
3430#endif 4197#endif
3431 4198
3432#if EV_FORK_ENABLE 4199#if EV_FORK_ENABLE
3433void 4200void
3434ev_fork_start (EV_P_ ev_fork *w) 4201ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3435{ 4202{
3436 if (expect_false (ev_is_active (w))) 4203 if (expect_false (ev_is_active (w)))
3437 return; 4204 return;
3438 4205
3439 EV_FREQUENT_CHECK; 4206 EV_FREQUENT_CHECK;
… …
3444 4211
3445 EV_FREQUENT_CHECK; 4212 EV_FREQUENT_CHECK;
3446} 4213}
3447 4214
3448void 4215void
3449ev_fork_stop (EV_P_ ev_fork *w) 4216ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3450{ 4217{
3451 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
3452 if (expect_false (!ev_is_active (w))) 4219 if (expect_false (!ev_is_active (w)))
3453 return; 4220 return;
3454 4221
… …
3465 4232
3466 EV_FREQUENT_CHECK; 4233 EV_FREQUENT_CHECK;
3467} 4234}
3468#endif 4235#endif
3469 4236
4237#if EV_CLEANUP_ENABLE
4238void
4239ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4240{
4241 if (expect_false (ev_is_active (w)))
4242 return;
4243
4244 EV_FREQUENT_CHECK;
4245
4246 ev_start (EV_A_ (W)w, ++cleanupcnt);
4247 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4248 cleanups [cleanupcnt - 1] = w;
4249
4250 /* cleanup watchers should never keep a refcount on the loop */
4251 ev_unref (EV_A);
4252 EV_FREQUENT_CHECK;
4253}
4254
4255void
4256ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4257{
4258 clear_pending (EV_A_ (W)w);
4259 if (expect_false (!ev_is_active (w)))
4260 return;
4261
4262 EV_FREQUENT_CHECK;
4263 ev_ref (EV_A);
4264
4265 {
4266 int active = ev_active (w);
4267
4268 cleanups [active - 1] = cleanups [--cleanupcnt];
4269 ev_active (cleanups [active - 1]) = active;
4270 }
4271
4272 ev_stop (EV_A_ (W)w);
4273
4274 EV_FREQUENT_CHECK;
4275}
4276#endif
4277
3470#if EV_ASYNC_ENABLE 4278#if EV_ASYNC_ENABLE
3471void 4279void
3472ev_async_start (EV_P_ ev_async *w) 4280ev_async_start (EV_P_ ev_async *w) EV_THROW
3473{ 4281{
3474 if (expect_false (ev_is_active (w))) 4282 if (expect_false (ev_is_active (w)))
3475 return; 4283 return;
4284
4285 w->sent = 0;
3476 4286
3477 evpipe_init (EV_A); 4287 evpipe_init (EV_A);
3478 4288
3479 EV_FREQUENT_CHECK; 4289 EV_FREQUENT_CHECK;
3480 4290
… …
3484 4294
3485 EV_FREQUENT_CHECK; 4295 EV_FREQUENT_CHECK;
3486} 4296}
3487 4297
3488void 4298void
3489ev_async_stop (EV_P_ ev_async *w) 4299ev_async_stop (EV_P_ ev_async *w) EV_THROW
3490{ 4300{
3491 clear_pending (EV_A_ (W)w); 4301 clear_pending (EV_A_ (W)w);
3492 if (expect_false (!ev_is_active (w))) 4302 if (expect_false (!ev_is_active (w)))
3493 return; 4303 return;
3494 4304
… …
3505 4315
3506 EV_FREQUENT_CHECK; 4316 EV_FREQUENT_CHECK;
3507} 4317}
3508 4318
3509void 4319void
3510ev_async_send (EV_P_ ev_async *w) 4320ev_async_send (EV_P_ ev_async *w) EV_THROW
3511{ 4321{
3512 w->sent = 1; 4322 w->sent = 1;
3513 evpipe_write (EV_A_ &async_pending); 4323 evpipe_write (EV_A_ &async_pending);
3514} 4324}
3515#endif 4325#endif
… …
3552 4362
3553 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4363 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3554} 4364}
3555 4365
3556void 4366void
3557ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4367ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3558{ 4368{
3559 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4369 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3560 4370
3561 if (expect_false (!once)) 4371 if (expect_false (!once))
3562 { 4372 {
3563 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4373 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3564 return; 4374 return;
3565 } 4375 }
3566 4376
3567 once->cb = cb; 4377 once->cb = cb;
3568 once->arg = arg; 4378 once->arg = arg;
… …
3583} 4393}
3584 4394
3585/*****************************************************************************/ 4395/*****************************************************************************/
3586 4396
3587#if EV_WALK_ENABLE 4397#if EV_WALK_ENABLE
3588void 4398void ecb_cold
3589ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4399ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3590{ 4400{
3591 int i, j; 4401 int i, j;
3592 ev_watcher_list *wl, *wn; 4402 ev_watcher_list *wl, *wn;
3593 4403
3594 if (types & (EV_IO | EV_EMBED)) 4404 if (types & (EV_IO | EV_EMBED))
… …
3637 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4447 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3638#endif 4448#endif
3639 4449
3640#if EV_IDLE_ENABLE 4450#if EV_IDLE_ENABLE
3641 if (types & EV_IDLE) 4451 if (types & EV_IDLE)
3642 for (j = NUMPRI; i--; ) 4452 for (j = NUMPRI; j--; )
3643 for (i = idlecnt [j]; i--; ) 4453 for (i = idlecnt [j]; i--; )
3644 cb (EV_A_ EV_IDLE, idles [j][i]); 4454 cb (EV_A_ EV_IDLE, idles [j][i]);
3645#endif 4455#endif
3646 4456
3647#if EV_FORK_ENABLE 4457#if EV_FORK_ENABLE
… …
3655 if (types & EV_ASYNC) 4465 if (types & EV_ASYNC)
3656 for (i = asynccnt; i--; ) 4466 for (i = asynccnt; i--; )
3657 cb (EV_A_ EV_ASYNC, asyncs [i]); 4467 cb (EV_A_ EV_ASYNC, asyncs [i]);
3658#endif 4468#endif
3659 4469
4470#if EV_PREPARE_ENABLE
3660 if (types & EV_PREPARE) 4471 if (types & EV_PREPARE)
3661 for (i = preparecnt; i--; ) 4472 for (i = preparecnt; i--; )
3662#if EV_EMBED_ENABLE 4473# if EV_EMBED_ENABLE
3663 if (ev_cb (prepares [i]) != embed_prepare_cb) 4474 if (ev_cb (prepares [i]) != embed_prepare_cb)
3664#endif 4475# endif
3665 cb (EV_A_ EV_PREPARE, prepares [i]); 4476 cb (EV_A_ EV_PREPARE, prepares [i]);
4477#endif
3666 4478
4479#if EV_CHECK_ENABLE
3667 if (types & EV_CHECK) 4480 if (types & EV_CHECK)
3668 for (i = checkcnt; i--; ) 4481 for (i = checkcnt; i--; )
3669 cb (EV_A_ EV_CHECK, checks [i]); 4482 cb (EV_A_ EV_CHECK, checks [i]);
4483#endif
3670 4484
4485#if EV_SIGNAL_ENABLE
3671 if (types & EV_SIGNAL) 4486 if (types & EV_SIGNAL)
3672 for (i = 0; i < EV_NSIG - 1; ++i) 4487 for (i = 0; i < EV_NSIG - 1; ++i)
3673 for (wl = signals [i].head; wl; ) 4488 for (wl = signals [i].head; wl; )
3674 { 4489 {
3675 wn = wl->next; 4490 wn = wl->next;
3676 cb (EV_A_ EV_SIGNAL, wl); 4491 cb (EV_A_ EV_SIGNAL, wl);
3677 wl = wn; 4492 wl = wn;
3678 } 4493 }
4494#endif
3679 4495
4496#if EV_CHILD_ENABLE
3680 if (types & EV_CHILD) 4497 if (types & EV_CHILD)
3681 for (i = EV_PID_HASHSIZE; i--; ) 4498 for (i = (EV_PID_HASHSIZE); i--; )
3682 for (wl = childs [i]; wl; ) 4499 for (wl = childs [i]; wl; )
3683 { 4500 {
3684 wn = wl->next; 4501 wn = wl->next;
3685 cb (EV_A_ EV_CHILD, wl); 4502 cb (EV_A_ EV_CHILD, wl);
3686 wl = wn; 4503 wl = wn;
3687 } 4504 }
4505#endif
3688/* EV_STAT 0x00001000 /* stat data changed */ 4506/* EV_STAT 0x00001000 /* stat data changed */
3689/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4507/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3690} 4508}
3691#endif 4509#endif
3692 4510
3693#if EV_MULTIPLICITY 4511#if EV_MULTIPLICITY
3694 #include "ev_wrap.h" 4512 #include "ev_wrap.h"
3695#endif 4513#endif
3696 4514
3697#ifdef __cplusplus
3698}
3699#endif
3700

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