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Comparing libev/ev.c (file contents):
Revision 1.305 by root, Sun Jul 19 03:49:04 2009 UTC vs.
Revision 1.380 by root, Mon Jun 27 19:20:01 2011 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 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
… …
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
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
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>
168#include <string.h>
158#include <fcntl.h> 169#include <fcntl.h>
159#include <stddef.h> 170#include <stddef.h>
160 171
161#include <stdio.h> 172#include <stdio.h>
162 173
163#include <assert.h> 174#include <assert.h>
164#include <errno.h> 175#include <errno.h>
165#include <sys/types.h> 176#include <sys/types.h>
166#include <time.h> 177#include <time.h>
178#include <limits.h>
167 179
168#include <signal.h> 180#include <signal.h>
169 181
170#ifdef EV_H 182#ifdef EV_H
171# include EV_H 183# include EV_H
172#else 184#else
173# include "ev.h" 185# include "ev.h"
174#endif 186#endif
187
188EV_CPP(extern "C" {)
175 189
176#ifndef _WIN32 190#ifndef _WIN32
177# include <sys/time.h> 191# include <sys/time.h>
178# include <sys/wait.h> 192# include <sys/wait.h>
179# include <unistd.h> 193# include <unistd.h>
… …
182# define WIN32_LEAN_AND_MEAN 196# define WIN32_LEAN_AND_MEAN
183# include <windows.h> 197# include <windows.h>
184# ifndef EV_SELECT_IS_WINSOCKET 198# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 199# define EV_SELECT_IS_WINSOCKET 1
186# endif 200# endif
201# undef EV_AVOID_STDIO
187#endif 202#endif
203
204/* OS X, in its infinite idiocy, actually HARDCODES
205 * a limit of 1024 into their select. Where people have brains,
206 * OS X engineers apparently have a vacuum. Or maybe they were
207 * ordered to have a vacuum, or they do anything for money.
208 * This might help. Or not.
209 */
210#define _DARWIN_UNLIMITED_SELECT 1
188 211
189/* this block tries to deduce configuration from header-defined symbols and defaults */ 212/* this block tries to deduce configuration from header-defined symbols and defaults */
190 213
191/* try to deduce the maximum number of signals on this platform */ 214/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG) 215#if defined (EV_NSIG)
… …
204#elif defined (MAXSIG) 227#elif defined (MAXSIG)
205# define EV_NSIG (MAXSIG+1) 228# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG) 229#elif defined (MAX_SIG)
207# define EV_NSIG (MAX_SIG+1) 230# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE) 231#elif defined (SIGARRAYSIZE)
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig) 233#elif defined (_sys_nsig)
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else 235#else
213# error "unable to find value for NSIG, please report" 236# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */ 237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
215# define EV_NSIG 64 239# define EV_NSIG 65
216#endif 240#endif
217 241
218/* Default to some arbitrary number that's big enough to get most 242#ifndef EV_USE_FLOOR
219 of the common signals. 243# define EV_USE_FLOOR 0
220*/
221#ifndef NSIG
222# define NSIG 50
223#endif 244#endif
224/* <-- NSIG logic from Configure */ 245
225#ifndef EV_USE_CLOCK_SYSCALL 246#ifndef EV_USE_CLOCK_SYSCALL
226# if __linux && __GLIBC__ >= 2 247# if __linux && __GLIBC__ >= 2
227# define EV_USE_CLOCK_SYSCALL 1 248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
228# else 249# else
229# define EV_USE_CLOCK_SYSCALL 0 250# define EV_USE_CLOCK_SYSCALL 0
230# endif 251# endif
231#endif 252#endif
232 253
233#ifndef EV_USE_MONOTONIC 254#ifndef EV_USE_MONOTONIC
234# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
235# define EV_USE_MONOTONIC 1 256# define EV_USE_MONOTONIC EV_FEATURE_OS
236# else 257# else
237# define EV_USE_MONOTONIC 0 258# define EV_USE_MONOTONIC 0
238# endif 259# endif
239#endif 260#endif
240 261
… …
242# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 263# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
243#endif 264#endif
244 265
245#ifndef EV_USE_NANOSLEEP 266#ifndef EV_USE_NANOSLEEP
246# if _POSIX_C_SOURCE >= 199309L 267# if _POSIX_C_SOURCE >= 199309L
247# define EV_USE_NANOSLEEP 1 268# define EV_USE_NANOSLEEP EV_FEATURE_OS
248# else 269# else
249# define EV_USE_NANOSLEEP 0 270# define EV_USE_NANOSLEEP 0
250# endif 271# endif
251#endif 272#endif
252 273
253#ifndef EV_USE_SELECT 274#ifndef EV_USE_SELECT
254# define EV_USE_SELECT 1 275# define EV_USE_SELECT EV_FEATURE_BACKENDS
255#endif 276#endif
256 277
257#ifndef EV_USE_POLL 278#ifndef EV_USE_POLL
258# ifdef _WIN32 279# ifdef _WIN32
259# define EV_USE_POLL 0 280# define EV_USE_POLL 0
260# else 281# else
261# define EV_USE_POLL 1 282# define EV_USE_POLL EV_FEATURE_BACKENDS
262# endif 283# endif
263#endif 284#endif
264 285
265#ifndef EV_USE_EPOLL 286#ifndef EV_USE_EPOLL
266# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 287# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
267# define EV_USE_EPOLL 1 288# define EV_USE_EPOLL EV_FEATURE_BACKENDS
268# else 289# else
269# define EV_USE_EPOLL 0 290# define EV_USE_EPOLL 0
270# endif 291# endif
271#endif 292#endif
272 293
… …
278# define EV_USE_PORT 0 299# define EV_USE_PORT 0
279#endif 300#endif
280 301
281#ifndef EV_USE_INOTIFY 302#ifndef EV_USE_INOTIFY
282# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
283# define EV_USE_INOTIFY 1 304# define EV_USE_INOTIFY EV_FEATURE_OS
284# else 305# else
285# define EV_USE_INOTIFY 0 306# define EV_USE_INOTIFY 0
286# endif 307# endif
287#endif 308#endif
288 309
289#ifndef EV_PID_HASHSIZE 310#ifndef EV_PID_HASHSIZE
290# if EV_MINIMAL 311# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
291# define EV_PID_HASHSIZE 1
292# else
293# define EV_PID_HASHSIZE 16
294# endif
295#endif 312#endif
296 313
297#ifndef EV_INOTIFY_HASHSIZE 314#ifndef EV_INOTIFY_HASHSIZE
298# if EV_MINIMAL 315# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
299# define EV_INOTIFY_HASHSIZE 1
300# else
301# define EV_INOTIFY_HASHSIZE 16
302# endif
303#endif 316#endif
304 317
305#ifndef EV_USE_EVENTFD 318#ifndef EV_USE_EVENTFD
306# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
307# define EV_USE_EVENTFD 1 320# define EV_USE_EVENTFD EV_FEATURE_OS
308# else 321# else
309# define EV_USE_EVENTFD 0 322# define EV_USE_EVENTFD 0
310# endif 323# endif
311#endif 324#endif
312 325
313#ifndef EV_USE_SIGNALFD 326#ifndef EV_USE_SIGNALFD
314# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) 327# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
315# define EV_USE_SIGNALFD 1 328# define EV_USE_SIGNALFD EV_FEATURE_OS
316# else 329# else
317# define EV_USE_SIGNALFD 0 330# define EV_USE_SIGNALFD 0
318# endif 331# endif
319#endif 332#endif
320 333
… …
323# define EV_USE_4HEAP 1 336# define EV_USE_4HEAP 1
324# define EV_HEAP_CACHE_AT 1 337# define EV_HEAP_CACHE_AT 1
325#endif 338#endif
326 339
327#ifndef EV_VERIFY 340#ifndef EV_VERIFY
328# define EV_VERIFY !EV_MINIMAL 341# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
329#endif 342#endif
330 343
331#ifndef EV_USE_4HEAP 344#ifndef EV_USE_4HEAP
332# define EV_USE_4HEAP !EV_MINIMAL 345# define EV_USE_4HEAP EV_FEATURE_DATA
333#endif 346#endif
334 347
335#ifndef EV_HEAP_CACHE_AT 348#ifndef EV_HEAP_CACHE_AT
336# define EV_HEAP_CACHE_AT !EV_MINIMAL 349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
337#endif 350#endif
338 351
339/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
340/* which makes programs even slower. might work on other unices, too. */ 353/* which makes programs even slower. might work on other unices, too. */
341#if EV_USE_CLOCK_SYSCALL 354#if EV_USE_CLOCK_SYSCALL
… …
350# endif 363# endif
351#endif 364#endif
352 365
353/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 366/* this block fixes any misconfiguration where we know we run into trouble otherwise */
354 367
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
355#ifndef CLOCK_MONOTONIC 374#ifndef CLOCK_MONOTONIC
356# undef EV_USE_MONOTONIC 375# undef EV_USE_MONOTONIC
357# define EV_USE_MONOTONIC 0 376# define EV_USE_MONOTONIC 0
358#endif 377#endif
359 378
… …
366# undef EV_USE_INOTIFY 385# undef EV_USE_INOTIFY
367# define EV_USE_INOTIFY 0 386# define EV_USE_INOTIFY 0
368#endif 387#endif
369 388
370#if !EV_USE_NANOSLEEP 389#if !EV_USE_NANOSLEEP
371# ifndef _WIN32 390/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux)
372# include <sys/select.h> 392# include <sys/select.h>
373# endif 393# endif
374#endif 394#endif
375 395
376#if EV_USE_INOTIFY 396#if EV_USE_INOTIFY
377# include <sys/utsname.h>
378# include <sys/statfs.h> 397# include <sys/statfs.h>
379# include <sys/inotify.h> 398# include <sys/inotify.h>
380/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
381# ifndef IN_DONT_FOLLOW 400# ifndef IN_DONT_FOLLOW
382# undef EV_USE_INOTIFY 401# undef EV_USE_INOTIFY
… …
393# include <stdint.h> 412# include <stdint.h>
394# ifndef EFD_NONBLOCK 413# ifndef EFD_NONBLOCK
395# define EFD_NONBLOCK O_NONBLOCK 414# define EFD_NONBLOCK O_NONBLOCK
396# endif 415# endif
397# ifndef EFD_CLOEXEC 416# ifndef EFD_CLOEXEC
417# ifdef O_CLOEXEC
398# define EFD_CLOEXEC O_CLOEXEC 418# define EFD_CLOEXEC O_CLOEXEC
419# else
420# define EFD_CLOEXEC 02000000
421# endif
399# endif 422# endif
400# ifdef __cplusplus 423EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
401extern "C" { 424#endif
425
426#if EV_USE_SIGNALFD
427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
428# include <stdint.h>
429# ifndef SFD_NONBLOCK
430# define SFD_NONBLOCK O_NONBLOCK
402# endif 431# endif
403int eventfd (unsigned int initval, int flags); 432# ifndef SFD_CLOEXEC
404# ifdef __cplusplus 433# ifdef O_CLOEXEC
405} 434# define SFD_CLOEXEC O_CLOEXEC
435# else
436# define SFD_CLOEXEC 02000000
437# endif
406# endif 438# endif
407#endif 439EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
408 440
409#if EV_USE_SIGNALFD 441struct signalfd_siginfo
410# include <sys/signalfd.h> 442{
443 uint32_t ssi_signo;
444 char pad[128 - sizeof (uint32_t)];
445};
411#endif 446#endif
412 447
413/**/ 448/**/
414 449
415#if EV_VERIFY >= 3 450#if EV_VERIFY >= 3
416# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 451# define EV_FREQUENT_CHECK ev_verify (EV_A)
417#else 452#else
418# define EV_FREQUENT_CHECK do { } while (0) 453# define EV_FREQUENT_CHECK do { } while (0)
419#endif 454#endif
420 455
421/* 456/*
422 * This is used to avoid floating point rounding problems. 457 * This is used to work around floating point rounding problems.
423 * It is added to ev_rt_now when scheduling periodics
424 * to ensure progress, time-wise, even when rounding
425 * errors are against us.
426 * This value is good at least till the year 4000. 458 * This value is good at least till the year 4000.
427 * Better solutions welcome.
428 */ 459 */
429#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 460#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
461/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
430 462
431#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 463#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
432#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
433/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
434 465
435#if __GNUC__ >= 4 466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
436# define expect(expr,value) __builtin_expect ((expr),(value)) 467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
437# define noinline __attribute__ ((noinline)) 468
469/* the following are taken from libecb */
470/* ecb.h start */
471
472/* many compilers define _GNUC_ to some versions but then only implement
473 * what their idiot authors think are the "more important" extensions,
474 * causing enourmous grief in return for some better fake benchmark numbers.
475 * or so.
476 * we try to detect these and simply assume they are not gcc - if they have
477 * an issue with that they should have done it right in the first place.
478 */
479#ifndef ECB_GCC_VERSION
480 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
481 #define ECB_GCC_VERSION(major,minor) 0
482 #else
483 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
484 #endif
485#endif
486
487#if __cplusplus
488 #define ecb_inline static inline
489#elif ECB_GCC_VERSION(2,5)
490 #define ecb_inline static __inline__
491#elif ECB_C99
492 #define ecb_inline static inline
438#else 493#else
439# define expect(expr,value) (expr) 494 #define ecb_inline static
440# define noinline
441# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
442# define inline
443# endif 495#endif
444#endif
445 496
497#if ECB_GCC_VERSION(3,1)
498 #define ecb_attribute(attrlist) __attribute__(attrlist)
499 #define ecb_is_constant(expr) __builtin_constant_p (expr)
500 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
501 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
502#else
503 #define ecb_attribute(attrlist)
504 #define ecb_is_constant(expr) 0
505 #define ecb_expect(expr,value) (expr)
506 #define ecb_prefetch(addr,rw,locality)
507#endif
508
509#define ecb_noinline ecb_attribute ((__noinline__))
510#define ecb_noreturn ecb_attribute ((__noreturn__))
511#define ecb_unused ecb_attribute ((__unused__))
512#define ecb_const ecb_attribute ((__const__))
513#define ecb_pure ecb_attribute ((__pure__))
514
515#if ECB_GCC_VERSION(4,3)
516 #define ecb_artificial ecb_attribute ((__artificial__))
517 #define ecb_hot ecb_attribute ((__hot__))
518 #define ecb_cold ecb_attribute ((__cold__))
519#else
520 #define ecb_artificial
521 #define ecb_hot
522 #define ecb_cold
523#endif
524
525/* put around conditional expressions if you are very sure that the */
526/* expression is mostly true or mostly false. note that these return */
527/* booleans, not the expression. */
446#define expect_false(expr) expect ((expr) != 0, 0) 528#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
447#define expect_true(expr) expect ((expr) != 0, 1) 529#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
530/* ecb.h end */
531
532#define expect_false(cond) ecb_expect_false (cond)
533#define expect_true(cond) ecb_expect_true (cond)
534#define noinline ecb_noinline
535
448#define inline_size static inline 536#define inline_size ecb_inline
449 537
450#if EV_MINIMAL 538#if EV_FEATURE_CODE
539# define inline_speed ecb_inline
540#else
451# define inline_speed static noinline 541# define inline_speed static noinline
452#else
453# define inline_speed static inline
454#endif 542#endif
455 543
456#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 544#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
457 545
458#if EV_MINPRI == EV_MAXPRI 546#if EV_MINPRI == EV_MAXPRI
… …
471#define ev_active(w) ((W)(w))->active 559#define ev_active(w) ((W)(w))->active
472#define ev_at(w) ((WT)(w))->at 560#define ev_at(w) ((WT)(w))->at
473 561
474#if EV_USE_REALTIME 562#if EV_USE_REALTIME
475/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 563/* sig_atomic_t is used to avoid per-thread variables or locking but still */
476/* giving it a reasonably high chance of working on typical architetcures */ 564/* giving it a reasonably high chance of working on typical architectures */
477static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 565static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
478#endif 566#endif
479 567
480#if EV_USE_MONOTONIC 568#if EV_USE_MONOTONIC
481static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 569static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
482#endif 570#endif
483 571
572#ifndef EV_FD_TO_WIN32_HANDLE
573# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
574#endif
575#ifndef EV_WIN32_HANDLE_TO_FD
576# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
577#endif
578#ifndef EV_WIN32_CLOSE_FD
579# define EV_WIN32_CLOSE_FD(fd) close (fd)
580#endif
581
484#ifdef _WIN32 582#ifdef _WIN32
485# include "ev_win32.c" 583# include "ev_win32.c"
486#endif 584#endif
487 585
488/*****************************************************************************/ 586/*****************************************************************************/
489 587
588/* define a suitable floor function (only used by periodics atm) */
589
590#if EV_USE_FLOOR
591# include <math.h>
592# define ev_floor(v) floor (v)
593#else
594
595#include <float.h>
596
597/* a floor() replacement function, should be independent of ev_tstamp type */
598static ev_tstamp noinline
599ev_floor (ev_tstamp v)
600{
601 /* the choice of shift factor is not terribly important */
602#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
603 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
604#else
605 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
606#endif
607
608 /* argument too large for an unsigned long? */
609 if (expect_false (v >= shift))
610 {
611 ev_tstamp f;
612
613 if (v == v - 1.)
614 return v; /* very large number */
615
616 f = shift * ev_floor (v * (1. / shift));
617 return f + ev_floor (v - f);
618 }
619
620 /* special treatment for negative args? */
621 if (expect_false (v < 0.))
622 {
623 ev_tstamp f = -ev_floor (-v);
624
625 return f - (f == v ? 0 : 1);
626 }
627
628 /* fits into an unsigned long */
629 return (unsigned long)v;
630}
631
632#endif
633
634/*****************************************************************************/
635
636#ifdef __linux
637# include <sys/utsname.h>
638#endif
639
640static unsigned int noinline ecb_cold
641ev_linux_version (void)
642{
643#ifdef __linux
644 unsigned int v = 0;
645 struct utsname buf;
646 int i;
647 char *p = buf.release;
648
649 if (uname (&buf))
650 return 0;
651
652 for (i = 3+1; --i; )
653 {
654 unsigned int c = 0;
655
656 for (;;)
657 {
658 if (*p >= '0' && *p <= '9')
659 c = c * 10 + *p++ - '0';
660 else
661 {
662 p += *p == '.';
663 break;
664 }
665 }
666
667 v = (v << 8) | c;
668 }
669
670 return v;
671#else
672 return 0;
673#endif
674}
675
676/*****************************************************************************/
677
678#if EV_AVOID_STDIO
679static void noinline ecb_cold
680ev_printerr (const char *msg)
681{
682 write (STDERR_FILENO, msg, strlen (msg));
683}
684#endif
685
490static void (*syserr_cb)(const char *msg); 686static void (*syserr_cb)(const char *msg);
491 687
492void 688void ecb_cold
493ev_set_syserr_cb (void (*cb)(const char *msg)) 689ev_set_syserr_cb (void (*cb)(const char *msg))
494{ 690{
495 syserr_cb = cb; 691 syserr_cb = cb;
496} 692}
497 693
498static void noinline 694static void noinline ecb_cold
499ev_syserr (const char *msg) 695ev_syserr (const char *msg)
500{ 696{
501 if (!msg) 697 if (!msg)
502 msg = "(libev) system error"; 698 msg = "(libev) system error";
503 699
504 if (syserr_cb) 700 if (syserr_cb)
505 syserr_cb (msg); 701 syserr_cb (msg);
506 else 702 else
507 { 703 {
704#if EV_AVOID_STDIO
705 ev_printerr (msg);
706 ev_printerr (": ");
707 ev_printerr (strerror (errno));
708 ev_printerr ("\n");
709#else
508 perror (msg); 710 perror (msg);
711#endif
509 abort (); 712 abort ();
510 } 713 }
511} 714}
512 715
513static void * 716static void *
514ev_realloc_emul (void *ptr, long size) 717ev_realloc_emul (void *ptr, long size)
515{ 718{
719#if __GLIBC__
720 return realloc (ptr, size);
721#else
516 /* some systems, notably openbsd and darwin, fail to properly 722 /* some systems, notably openbsd and darwin, fail to properly
517 * implement realloc (x, 0) (as required by both ansi c-98 and 723 * implement realloc (x, 0) (as required by both ansi c-89 and
518 * the single unix specification, so work around them here. 724 * the single unix specification, so work around them here.
519 */ 725 */
520 726
521 if (size) 727 if (size)
522 return realloc (ptr, size); 728 return realloc (ptr, size);
523 729
524 free (ptr); 730 free (ptr);
525 return 0; 731 return 0;
732#endif
526} 733}
527 734
528static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 735static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
529 736
530void 737void ecb_cold
531ev_set_allocator (void *(*cb)(void *ptr, long size)) 738ev_set_allocator (void *(*cb)(void *ptr, long size))
532{ 739{
533 alloc = cb; 740 alloc = cb;
534} 741}
535 742
… …
538{ 745{
539 ptr = alloc (ptr, size); 746 ptr = alloc (ptr, size);
540 747
541 if (!ptr && size) 748 if (!ptr && size)
542 { 749 {
750#if EV_AVOID_STDIO
751 ev_printerr ("(libev) memory allocation failed, aborting.\n");
752#else
543 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 753 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
754#endif
544 abort (); 755 abort ();
545 } 756 }
546 757
547 return ptr; 758 return ptr;
548} 759}
… …
564 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 775 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
565 unsigned char unused; 776 unsigned char unused;
566#if EV_USE_EPOLL 777#if EV_USE_EPOLL
567 unsigned int egen; /* generation counter to counter epoll bugs */ 778 unsigned int egen; /* generation counter to counter epoll bugs */
568#endif 779#endif
569#if EV_SELECT_IS_WINSOCKET 780#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
570 SOCKET handle; 781 SOCKET handle;
782#endif
783#if EV_USE_IOCP
784 OVERLAPPED or, ow;
571#endif 785#endif
572} ANFD; 786} ANFD;
573 787
574/* stores the pending event set for a given watcher */ 788/* stores the pending event set for a given watcher */
575typedef struct 789typedef struct
… …
630 844
631 static int ev_default_loop_ptr; 845 static int ev_default_loop_ptr;
632 846
633#endif 847#endif
634 848
635#if EV_MINIMAL < 2 849#if EV_FEATURE_API
636# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 850# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
637# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 851# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
638# define EV_INVOKE_PENDING invoke_cb (EV_A) 852# define EV_INVOKE_PENDING invoke_cb (EV_A)
639#else 853#else
640# define EV_RELEASE_CB (void)0 854# define EV_RELEASE_CB (void)0
641# define EV_ACQUIRE_CB (void)0 855# define EV_ACQUIRE_CB (void)0
642# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 856# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
643#endif 857#endif
644 858
645#define EVUNLOOP_RECURSE 0x80 859#define EVBREAK_RECURSE 0x80
646 860
647/*****************************************************************************/ 861/*****************************************************************************/
648 862
649#ifndef EV_HAVE_EV_TIME 863#ifndef EV_HAVE_EV_TIME
650ev_tstamp 864ev_tstamp
… …
694 if (delay > 0.) 908 if (delay > 0.)
695 { 909 {
696#if EV_USE_NANOSLEEP 910#if EV_USE_NANOSLEEP
697 struct timespec ts; 911 struct timespec ts;
698 912
699 ts.tv_sec = (time_t)delay; 913 EV_TS_SET (ts, delay);
700 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
701
702 nanosleep (&ts, 0); 914 nanosleep (&ts, 0);
703#elif defined(_WIN32) 915#elif defined(_WIN32)
704 Sleep ((unsigned long)(delay * 1e3)); 916 Sleep ((unsigned long)(delay * 1e3));
705#else 917#else
706 struct timeval tv; 918 struct timeval tv;
707 919
708 tv.tv_sec = (time_t)delay;
709 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
710
711 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 920 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
712 /* something not guaranteed by newer posix versions, but guaranteed */ 921 /* something not guaranteed by newer posix versions, but guaranteed */
713 /* by older ones */ 922 /* by older ones */
923 EV_TV_SET (tv, delay);
714 select (0, 0, 0, 0, &tv); 924 select (0, 0, 0, 0, &tv);
715#endif 925#endif
716 } 926 }
717} 927}
718 928
719/*****************************************************************************/ 929/*****************************************************************************/
720 930
721#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 931#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
722 932
723/* find a suitable new size for the given array, */ 933/* find a suitable new size for the given array, */
724/* hopefully by rounding to a ncie-to-malloc size */ 934/* hopefully by rounding to a nice-to-malloc size */
725inline_size int 935inline_size int
726array_nextsize (int elem, int cur, int cnt) 936array_nextsize (int elem, int cur, int cnt)
727{ 937{
728 int ncur = cur + 1; 938 int ncur = cur + 1;
729 939
… …
741 } 951 }
742 952
743 return ncur; 953 return ncur;
744} 954}
745 955
746static noinline void * 956static void * noinline ecb_cold
747array_realloc (int elem, void *base, int *cur, int cnt) 957array_realloc (int elem, void *base, int *cur, int cnt)
748{ 958{
749 *cur = array_nextsize (elem, *cur, cnt); 959 *cur = array_nextsize (elem, *cur, cnt);
750 return ev_realloc (base, elem * *cur); 960 return ev_realloc (base, elem * *cur);
751} 961}
… …
825} 1035}
826 1036
827/*****************************************************************************/ 1037/*****************************************************************************/
828 1038
829inline_speed void 1039inline_speed void
830fd_event_nc (EV_P_ int fd, int revents) 1040fd_event_nocheck (EV_P_ int fd, int revents)
831{ 1041{
832 ANFD *anfd = anfds + fd; 1042 ANFD *anfd = anfds + fd;
833 ev_io *w; 1043 ev_io *w;
834 1044
835 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1045 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
847fd_event (EV_P_ int fd, int revents) 1057fd_event (EV_P_ int fd, int revents)
848{ 1058{
849 ANFD *anfd = anfds + fd; 1059 ANFD *anfd = anfds + fd;
850 1060
851 if (expect_true (!anfd->reify)) 1061 if (expect_true (!anfd->reify))
852 fd_event_nc (EV_A_ fd, revents); 1062 fd_event_nocheck (EV_A_ fd, revents);
853} 1063}
854 1064
855void 1065void
856ev_feed_fd_event (EV_P_ int fd, int revents) 1066ev_feed_fd_event (EV_P_ int fd, int revents)
857{ 1067{
858 if (fd >= 0 && fd < anfdmax) 1068 if (fd >= 0 && fd < anfdmax)
859 fd_event_nc (EV_A_ fd, revents); 1069 fd_event_nocheck (EV_A_ fd, revents);
860} 1070}
861 1071
862/* make sure the external fd watch events are in-sync */ 1072/* make sure the external fd watch events are in-sync */
863/* with the kernel/libev internal state */ 1073/* with the kernel/libev internal state */
864inline_size void 1074inline_size void
865fd_reify (EV_P) 1075fd_reify (EV_P)
866{ 1076{
867 int i; 1077 int i;
868 1078
1079#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1080 for (i = 0; i < fdchangecnt; ++i)
1081 {
1082 int fd = fdchanges [i];
1083 ANFD *anfd = anfds + fd;
1084
1085 if (anfd->reify & EV__IOFDSET && anfd->head)
1086 {
1087 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1088
1089 if (handle != anfd->handle)
1090 {
1091 unsigned long arg;
1092
1093 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1094
1095 /* handle changed, but fd didn't - we need to do it in two steps */
1096 backend_modify (EV_A_ fd, anfd->events, 0);
1097 anfd->events = 0;
1098 anfd->handle = handle;
1099 }
1100 }
1101 }
1102#endif
1103
869 for (i = 0; i < fdchangecnt; ++i) 1104 for (i = 0; i < fdchangecnt; ++i)
870 { 1105 {
871 int fd = fdchanges [i]; 1106 int fd = fdchanges [i];
872 ANFD *anfd = anfds + fd; 1107 ANFD *anfd = anfds + fd;
873 ev_io *w; 1108 ev_io *w;
874 1109
875 unsigned char events = 0; 1110 unsigned char o_events = anfd->events;
1111 unsigned char o_reify = anfd->reify;
876 1112
877 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1113 anfd->reify = 0;
878 events |= (unsigned char)w->events;
879 1114
880#if EV_SELECT_IS_WINSOCKET 1115 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
881 if (events)
882 { 1116 {
883 unsigned long arg; 1117 anfd->events = 0;
884 #ifdef EV_FD_TO_WIN32_HANDLE 1118
885 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1119 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
886 #else 1120 anfd->events |= (unsigned char)w->events;
887 anfd->handle = _get_osfhandle (fd); 1121
888 #endif 1122 if (o_events != anfd->events)
889 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1123 o_reify = EV__IOFDSET; /* actually |= */
890 } 1124 }
891#endif
892 1125
893 { 1126 if (o_reify & EV__IOFDSET)
894 unsigned char o_events = anfd->events;
895 unsigned char o_reify = anfd->reify;
896
897 anfd->reify = 0;
898 anfd->events = events;
899
900 if (o_events != events || o_reify & EV__IOFDSET)
901 backend_modify (EV_A_ fd, o_events, events); 1127 backend_modify (EV_A_ fd, o_events, anfd->events);
902 }
903 } 1128 }
904 1129
905 fdchangecnt = 0; 1130 fdchangecnt = 0;
906} 1131}
907 1132
… …
919 fdchanges [fdchangecnt - 1] = fd; 1144 fdchanges [fdchangecnt - 1] = fd;
920 } 1145 }
921} 1146}
922 1147
923/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1148/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
924inline_speed void 1149inline_speed void ecb_cold
925fd_kill (EV_P_ int fd) 1150fd_kill (EV_P_ int fd)
926{ 1151{
927 ev_io *w; 1152 ev_io *w;
928 1153
929 while ((w = (ev_io *)anfds [fd].head)) 1154 while ((w = (ev_io *)anfds [fd].head))
… …
931 ev_io_stop (EV_A_ w); 1156 ev_io_stop (EV_A_ w);
932 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1157 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
933 } 1158 }
934} 1159}
935 1160
936/* check whether the given fd is atcually valid, for error recovery */ 1161/* check whether the given fd is actually valid, for error recovery */
937inline_size int 1162inline_size int ecb_cold
938fd_valid (int fd) 1163fd_valid (int fd)
939{ 1164{
940#ifdef _WIN32 1165#ifdef _WIN32
941 return _get_osfhandle (fd) != -1; 1166 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
942#else 1167#else
943 return fcntl (fd, F_GETFD) != -1; 1168 return fcntl (fd, F_GETFD) != -1;
944#endif 1169#endif
945} 1170}
946 1171
947/* called on EBADF to verify fds */ 1172/* called on EBADF to verify fds */
948static void noinline 1173static void noinline ecb_cold
949fd_ebadf (EV_P) 1174fd_ebadf (EV_P)
950{ 1175{
951 int fd; 1176 int fd;
952 1177
953 for (fd = 0; fd < anfdmax; ++fd) 1178 for (fd = 0; fd < anfdmax; ++fd)
… …
955 if (!fd_valid (fd) && errno == EBADF) 1180 if (!fd_valid (fd) && errno == EBADF)
956 fd_kill (EV_A_ fd); 1181 fd_kill (EV_A_ fd);
957} 1182}
958 1183
959/* called on ENOMEM in select/poll to kill some fds and retry */ 1184/* called on ENOMEM in select/poll to kill some fds and retry */
960static void noinline 1185static void noinline ecb_cold
961fd_enomem (EV_P) 1186fd_enomem (EV_P)
962{ 1187{
963 int fd; 1188 int fd;
964 1189
965 for (fd = anfdmax; fd--; ) 1190 for (fd = anfdmax; fd--; )
966 if (anfds [fd].events) 1191 if (anfds [fd].events)
967 { 1192 {
968 fd_kill (EV_A_ fd); 1193 fd_kill (EV_A_ fd);
969 return; 1194 break;
970 } 1195 }
971} 1196}
972 1197
973/* usually called after fork if backend needs to re-arm all fds from scratch */ 1198/* usually called after fork if backend needs to re-arm all fds from scratch */
974static void noinline 1199static void noinline
… …
983 anfds [fd].emask = 0; 1208 anfds [fd].emask = 0;
984 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1209 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
985 } 1210 }
986} 1211}
987 1212
1213/* used to prepare libev internal fd's */
1214/* this is not fork-safe */
1215inline_speed void
1216fd_intern (int fd)
1217{
1218#ifdef _WIN32
1219 unsigned long arg = 1;
1220 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1221#else
1222 fcntl (fd, F_SETFD, FD_CLOEXEC);
1223 fcntl (fd, F_SETFL, O_NONBLOCK);
1224#endif
1225}
1226
988/*****************************************************************************/ 1227/*****************************************************************************/
989 1228
990/* 1229/*
991 * the heap functions want a real array index. array index 0 uis guaranteed to not 1230 * the heap functions want a real array index. array index 0 is guaranteed to not
992 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1231 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
993 * the branching factor of the d-tree. 1232 * the branching factor of the d-tree.
994 */ 1233 */
995 1234
996/* 1235/*
… …
1064 1303
1065 for (;;) 1304 for (;;)
1066 { 1305 {
1067 int c = k << 1; 1306 int c = k << 1;
1068 1307
1069 if (c > N + HEAP0 - 1) 1308 if (c >= N + HEAP0)
1070 break; 1309 break;
1071 1310
1072 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1311 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1073 ? 1 : 0; 1312 ? 1 : 0;
1074 1313
… …
1110 1349
1111/* move an element suitably so it is in a correct place */ 1350/* move an element suitably so it is in a correct place */
1112inline_size void 1351inline_size void
1113adjustheap (ANHE *heap, int N, int k) 1352adjustheap (ANHE *heap, int N, int k)
1114{ 1353{
1115 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1354 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1116 upheap (heap, k); 1355 upheap (heap, k);
1117 else 1356 else
1118 downheap (heap, N, k); 1357 downheap (heap, N, k);
1119} 1358}
1120 1359
… …
1133/*****************************************************************************/ 1372/*****************************************************************************/
1134 1373
1135/* associate signal watchers to a signal signal */ 1374/* associate signal watchers to a signal signal */
1136typedef struct 1375typedef struct
1137{ 1376{
1377 EV_ATOMIC_T pending;
1378#if EV_MULTIPLICITY
1379 EV_P;
1380#endif
1138 WL head; 1381 WL head;
1139 EV_ATOMIC_T gotsig;
1140} ANSIG; 1382} ANSIG;
1141 1383
1142static ANSIG *signals; 1384static ANSIG signals [EV_NSIG - 1];
1143static int signalmax;
1144
1145static EV_ATOMIC_T gotsig;
1146 1385
1147/*****************************************************************************/ 1386/*****************************************************************************/
1148 1387
1149/* used to prepare libev internal fd's */ 1388#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1150/* this is not fork-safe */
1151inline_speed void
1152fd_intern (int fd)
1153{
1154#ifdef _WIN32
1155 unsigned long arg = 1;
1156 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1157#else
1158 fcntl (fd, F_SETFD, FD_CLOEXEC);
1159 fcntl (fd, F_SETFL, O_NONBLOCK);
1160#endif
1161}
1162 1389
1163static void noinline 1390static void noinline ecb_cold
1164evpipe_init (EV_P) 1391evpipe_init (EV_P)
1165{ 1392{
1166 if (!ev_is_active (&pipe_w)) 1393 if (!ev_is_active (&pipe_w))
1167 { 1394 {
1168#if EV_USE_EVENTFD 1395# if EV_USE_EVENTFD
1169 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1396 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1170 if (evfd < 0 && errno == EINVAL) 1397 if (evfd < 0 && errno == EINVAL)
1171 evfd = eventfd (0, 0); 1398 evfd = eventfd (0, 0);
1172 1399
1173 if (evfd >= 0) 1400 if (evfd >= 0)
… …
1175 evpipe [0] = -1; 1402 evpipe [0] = -1;
1176 fd_intern (evfd); /* doing it twice doesn't hurt */ 1403 fd_intern (evfd); /* doing it twice doesn't hurt */
1177 ev_io_set (&pipe_w, evfd, EV_READ); 1404 ev_io_set (&pipe_w, evfd, EV_READ);
1178 } 1405 }
1179 else 1406 else
1180#endif 1407# endif
1181 { 1408 {
1182 while (pipe (evpipe)) 1409 while (pipe (evpipe))
1183 ev_syserr ("(libev) error creating signal/async pipe"); 1410 ev_syserr ("(libev) error creating signal/async pipe");
1184 1411
1185 fd_intern (evpipe [0]); 1412 fd_intern (evpipe [0]);
… …
1190 ev_io_start (EV_A_ &pipe_w); 1417 ev_io_start (EV_A_ &pipe_w);
1191 ev_unref (EV_A); /* watcher should not keep loop alive */ 1418 ev_unref (EV_A); /* watcher should not keep loop alive */
1192 } 1419 }
1193} 1420}
1194 1421
1195inline_size void 1422inline_speed void
1196evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1423evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1197{ 1424{
1198 if (!*flag) 1425 if (!*flag)
1199 { 1426 {
1200 int old_errno = errno; /* save errno because write might clobber it */
1201
1202 *flag = 1; 1427 *flag = 1;
1203 1428
1429 pipe_write_skipped = 1;
1430
1431 if (pipe_write_wanted)
1432 {
1433 int old_errno;
1434
1435 pipe_write_skipped = 0;
1436
1437 old_errno = errno; /* save errno because write will clobber it */
1438
1204#if EV_USE_EVENTFD 1439#if EV_USE_EVENTFD
1205 if (evfd >= 0) 1440 if (evfd >= 0)
1206 { 1441 {
1207 uint64_t counter = 1; 1442 uint64_t counter = 1;
1208 write (evfd, &counter, sizeof (uint64_t)); 1443 write (evfd, &counter, sizeof (uint64_t));
1444 }
1445 else
1446#endif
1447 {
1448 /* win32 people keep sending patches that change this write() to send() */
1449 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1450 /* so when you think this write should be a send instead, please find out */
1451 /* where your send() is from - it's definitely not the microsoft send, and */
1452 /* tell me. thank you. */
1453 write (evpipe [1], &(evpipe [1]), 1);
1454 }
1455
1456 errno = old_errno;
1209 } 1457 }
1210 else
1211#endif
1212 write (evpipe [1], &old_errno, 1);
1213
1214 errno = old_errno;
1215 } 1458 }
1216} 1459}
1217 1460
1218/* called whenever the libev signal pipe */ 1461/* called whenever the libev signal pipe */
1219/* got some events (signal, async) */ 1462/* got some events (signal, async) */
1220static void 1463static void
1221pipecb (EV_P_ ev_io *iow, int revents) 1464pipecb (EV_P_ ev_io *iow, int revents)
1222{ 1465{
1466 int i;
1467
1468 if (revents & EV_READ)
1469 {
1223#if EV_USE_EVENTFD 1470#if EV_USE_EVENTFD
1224 if (evfd >= 0) 1471 if (evfd >= 0)
1225 { 1472 {
1226 uint64_t counter; 1473 uint64_t counter;
1227 read (evfd, &counter, sizeof (uint64_t)); 1474 read (evfd, &counter, sizeof (uint64_t));
1228 } 1475 }
1229 else 1476 else
1230#endif 1477#endif
1231 { 1478 {
1232 char dummy; 1479 char dummy;
1480 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1233 read (evpipe [0], &dummy, 1); 1481 read (evpipe [0], &dummy, 1);
1482 }
1483 }
1484
1485 pipe_write_skipped = 0;
1486
1487#if EV_SIGNAL_ENABLE
1488 if (sig_pending)
1234 } 1489 {
1490 sig_pending = 0;
1235 1491
1236 if (gotsig && ev_is_default_loop (EV_A)) 1492 for (i = EV_NSIG - 1; i--; )
1237 { 1493 if (expect_false (signals [i].pending))
1238 int signum;
1239 gotsig = 0;
1240
1241 for (signum = signalmax; signum--; )
1242 if (signals [signum].gotsig)
1243 ev_feed_signal_event (EV_A_ signum + 1); 1494 ev_feed_signal_event (EV_A_ i + 1);
1244 } 1495 }
1496#endif
1245 1497
1246#if EV_ASYNC_ENABLE 1498#if EV_ASYNC_ENABLE
1247 if (gotasync) 1499 if (async_pending)
1248 { 1500 {
1249 int i; 1501 async_pending = 0;
1250 gotasync = 0;
1251 1502
1252 for (i = asynccnt; i--; ) 1503 for (i = asynccnt; i--; )
1253 if (asyncs [i]->sent) 1504 if (asyncs [i]->sent)
1254 { 1505 {
1255 asyncs [i]->sent = 0; 1506 asyncs [i]->sent = 0;
… …
1259#endif 1510#endif
1260} 1511}
1261 1512
1262/*****************************************************************************/ 1513/*****************************************************************************/
1263 1514
1515void
1516ev_feed_signal (int signum)
1517{
1518#if EV_MULTIPLICITY
1519 EV_P = signals [signum - 1].loop;
1520
1521 if (!EV_A)
1522 return;
1523#endif
1524
1525 evpipe_init (EV_A);
1526
1527 signals [signum - 1].pending = 1;
1528 evpipe_write (EV_A_ &sig_pending);
1529}
1530
1264static void 1531static void
1265ev_sighandler (int signum) 1532ev_sighandler (int signum)
1266{ 1533{
1267#if EV_MULTIPLICITY
1268 struct ev_loop *loop = &default_loop_struct;
1269#endif
1270
1271#if _WIN32 1534#ifdef _WIN32
1272 signal (signum, ev_sighandler); 1535 signal (signum, ev_sighandler);
1273#endif 1536#endif
1274 1537
1275 signals [signum - 1].gotsig = 1; 1538 ev_feed_signal (signum);
1276 evpipe_write (EV_A_ &gotsig);
1277} 1539}
1278 1540
1279void noinline 1541void noinline
1280ev_feed_signal_event (EV_P_ int signum) 1542ev_feed_signal_event (EV_P_ int signum)
1281{ 1543{
1282 WL w; 1544 WL w;
1283 1545
1546 if (expect_false (signum <= 0 || signum > EV_NSIG))
1547 return;
1548
1549 --signum;
1550
1284#if EV_MULTIPLICITY 1551#if EV_MULTIPLICITY
1285 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1552 /* it is permissible to try to feed a signal to the wrong loop */
1286#endif 1553 /* or, likely more useful, feeding a signal nobody is waiting for */
1287 1554
1288 --signum; 1555 if (expect_false (signals [signum].loop != EV_A))
1289
1290 if (signum < 0 || signum >= signalmax)
1291 return; 1556 return;
1557#endif
1292 1558
1293 signals [signum].gotsig = 0; 1559 signals [signum].pending = 0;
1294 1560
1295 for (w = signals [signum].head; w; w = w->next) 1561 for (w = signals [signum].head; w; w = w->next)
1296 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1562 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1297} 1563}
1298 1564
1299#if EV_USE_SIGNALFD 1565#if EV_USE_SIGNALFD
1300static void 1566static void
1301sigfdcb (EV_P_ ev_io *iow, int revents) 1567sigfdcb (EV_P_ ev_io *iow, int revents)
1302{ 1568{
1303 struct signalfd_siginfo si[4], *sip; 1569 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1304 1570
1305 for (;;) 1571 for (;;)
1306 { 1572 {
1307 ssize_t res = read (sigfd, si, sizeof (si)); 1573 ssize_t res = read (sigfd, si, sizeof (si));
1308 1574
… …
1314 break; 1580 break;
1315 } 1581 }
1316} 1582}
1317#endif 1583#endif
1318 1584
1585#endif
1586
1319/*****************************************************************************/ 1587/*****************************************************************************/
1320 1588
1589#if EV_CHILD_ENABLE
1321static WL childs [EV_PID_HASHSIZE]; 1590static WL childs [EV_PID_HASHSIZE];
1322
1323#ifndef _WIN32
1324 1591
1325static ev_signal childev; 1592static ev_signal childev;
1326 1593
1327#ifndef WIFCONTINUED 1594#ifndef WIFCONTINUED
1328# define WIFCONTINUED(status) 0 1595# define WIFCONTINUED(status) 0
… …
1333child_reap (EV_P_ int chain, int pid, int status) 1600child_reap (EV_P_ int chain, int pid, int status)
1334{ 1601{
1335 ev_child *w; 1602 ev_child *w;
1336 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1603 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1337 1604
1338 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1605 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1339 { 1606 {
1340 if ((w->pid == pid || !w->pid) 1607 if ((w->pid == pid || !w->pid)
1341 && (!traced || (w->flags & 1))) 1608 && (!traced || (w->flags & 1)))
1342 { 1609 {
1343 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1610 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1368 /* make sure we are called again until all children have been reaped */ 1635 /* make sure we are called again until all children have been reaped */
1369 /* we need to do it this way so that the callback gets called before we continue */ 1636 /* we need to do it this way so that the callback gets called before we continue */
1370 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1637 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1371 1638
1372 child_reap (EV_A_ pid, pid, status); 1639 child_reap (EV_A_ pid, pid, status);
1373 if (EV_PID_HASHSIZE > 1) 1640 if ((EV_PID_HASHSIZE) > 1)
1374 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1641 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1375} 1642}
1376 1643
1377#endif 1644#endif
1378 1645
1379/*****************************************************************************/ 1646/*****************************************************************************/
1380 1647
1648#if EV_USE_IOCP
1649# include "ev_iocp.c"
1650#endif
1381#if EV_USE_PORT 1651#if EV_USE_PORT
1382# include "ev_port.c" 1652# include "ev_port.c"
1383#endif 1653#endif
1384#if EV_USE_KQUEUE 1654#if EV_USE_KQUEUE
1385# include "ev_kqueue.c" 1655# include "ev_kqueue.c"
… …
1392#endif 1662#endif
1393#if EV_USE_SELECT 1663#if EV_USE_SELECT
1394# include "ev_select.c" 1664# include "ev_select.c"
1395#endif 1665#endif
1396 1666
1397int 1667int ecb_cold
1398ev_version_major (void) 1668ev_version_major (void)
1399{ 1669{
1400 return EV_VERSION_MAJOR; 1670 return EV_VERSION_MAJOR;
1401} 1671}
1402 1672
1403int 1673int ecb_cold
1404ev_version_minor (void) 1674ev_version_minor (void)
1405{ 1675{
1406 return EV_VERSION_MINOR; 1676 return EV_VERSION_MINOR;
1407} 1677}
1408 1678
1409/* return true if we are running with elevated privileges and should ignore env variables */ 1679/* return true if we are running with elevated privileges and should ignore env variables */
1410int inline_size 1680int inline_size ecb_cold
1411enable_secure (void) 1681enable_secure (void)
1412{ 1682{
1413#ifdef _WIN32 1683#ifdef _WIN32
1414 return 0; 1684 return 0;
1415#else 1685#else
1416 return getuid () != geteuid () 1686 return getuid () != geteuid ()
1417 || getgid () != getegid (); 1687 || getgid () != getegid ();
1418#endif 1688#endif
1419} 1689}
1420 1690
1421unsigned int 1691unsigned int ecb_cold
1422ev_supported_backends (void) 1692ev_supported_backends (void)
1423{ 1693{
1424 unsigned int flags = 0; 1694 unsigned int flags = 0;
1425 1695
1426 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1696 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1430 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1700 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1431 1701
1432 return flags; 1702 return flags;
1433} 1703}
1434 1704
1435unsigned int 1705unsigned int ecb_cold
1436ev_recommended_backends (void) 1706ev_recommended_backends (void)
1437{ 1707{
1438 unsigned int flags = ev_supported_backends (); 1708 unsigned int flags = ev_supported_backends ();
1439 1709
1440#ifndef __NetBSD__ 1710#ifndef __NetBSD__
… …
1445#ifdef __APPLE__ 1715#ifdef __APPLE__
1446 /* only select works correctly on that "unix-certified" platform */ 1716 /* only select works correctly on that "unix-certified" platform */
1447 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1717 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1448 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1718 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1449#endif 1719#endif
1720#ifdef __FreeBSD__
1721 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1722#endif
1450 1723
1451 return flags; 1724 return flags;
1452} 1725}
1453 1726
1454unsigned int 1727unsigned int ecb_cold
1455ev_embeddable_backends (void) 1728ev_embeddable_backends (void)
1456{ 1729{
1457 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1730 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1458 1731
1459 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1732 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1460 /* please fix it and tell me how to detect the fix */ 1733 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1461 flags &= ~EVBACKEND_EPOLL; 1734 flags &= ~EVBACKEND_EPOLL;
1462 1735
1463 return flags; 1736 return flags;
1464} 1737}
1465 1738
1466unsigned int 1739unsigned int
1467ev_backend (EV_P) 1740ev_backend (EV_P)
1468{ 1741{
1469 return backend; 1742 return backend;
1470} 1743}
1471 1744
1472#if EV_MINIMAL < 2 1745#if EV_FEATURE_API
1473unsigned int 1746unsigned int
1474ev_loop_count (EV_P) 1747ev_iteration (EV_P)
1475{ 1748{
1476 return loop_count; 1749 return loop_count;
1477} 1750}
1478 1751
1479unsigned int 1752unsigned int
1480ev_loop_depth (EV_P) 1753ev_depth (EV_P)
1481{ 1754{
1482 return loop_depth; 1755 return loop_depth;
1483} 1756}
1484 1757
1485void 1758void
… …
1504ev_userdata (EV_P) 1777ev_userdata (EV_P)
1505{ 1778{
1506 return userdata; 1779 return userdata;
1507} 1780}
1508 1781
1782void
1509void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 1783ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1510{ 1784{
1511 invoke_cb = invoke_pending_cb; 1785 invoke_cb = invoke_pending_cb;
1512} 1786}
1513 1787
1788void
1514void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 1789ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1515{ 1790{
1516 release_cb = release; 1791 release_cb = release;
1517 acquire_cb = acquire; 1792 acquire_cb = acquire;
1518} 1793}
1519#endif 1794#endif
1520 1795
1521/* initialise a loop structure, must be zero-initialised */ 1796/* initialise a loop structure, must be zero-initialised */
1522static void noinline 1797static void noinline ecb_cold
1523loop_init (EV_P_ unsigned int flags) 1798loop_init (EV_P_ unsigned int flags)
1524{ 1799{
1525 if (!backend) 1800 if (!backend)
1526 { 1801 {
1802 origflags = flags;
1803
1527#if EV_USE_REALTIME 1804#if EV_USE_REALTIME
1528 if (!have_realtime) 1805 if (!have_realtime)
1529 { 1806 {
1530 struct timespec ts; 1807 struct timespec ts;
1531 1808
… …
1542 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1819 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1543 have_monotonic = 1; 1820 have_monotonic = 1;
1544 } 1821 }
1545#endif 1822#endif
1546 1823
1547 ev_rt_now = ev_time ();
1548 mn_now = get_clock ();
1549 now_floor = mn_now;
1550 rtmn_diff = ev_rt_now - mn_now;
1551#if EV_MINIMAL < 2
1552 invoke_cb = ev_invoke_pending;
1553#endif
1554
1555 io_blocktime = 0.;
1556 timeout_blocktime = 0.;
1557 backend = 0;
1558 backend_fd = -1;
1559 gotasync = 0;
1560#if EV_USE_INOTIFY
1561 fs_fd = -2;
1562#endif
1563#if EV_USE_SIGNALFD
1564 sigfd = -2;
1565#endif
1566
1567 /* pid check not overridable via env */ 1824 /* pid check not overridable via env */
1568#ifndef _WIN32 1825#ifndef _WIN32
1569 if (flags & EVFLAG_FORKCHECK) 1826 if (flags & EVFLAG_FORKCHECK)
1570 curpid = getpid (); 1827 curpid = getpid ();
1571#endif 1828#endif
… …
1573 if (!(flags & EVFLAG_NOENV) 1830 if (!(flags & EVFLAG_NOENV)
1574 && !enable_secure () 1831 && !enable_secure ()
1575 && getenv ("LIBEV_FLAGS")) 1832 && getenv ("LIBEV_FLAGS"))
1576 flags = atoi (getenv ("LIBEV_FLAGS")); 1833 flags = atoi (getenv ("LIBEV_FLAGS"));
1577 1834
1578 if (!(flags & 0x0000ffffU)) 1835 ev_rt_now = ev_time ();
1836 mn_now = get_clock ();
1837 now_floor = mn_now;
1838 rtmn_diff = ev_rt_now - mn_now;
1839#if EV_FEATURE_API
1840 invoke_cb = ev_invoke_pending;
1841#endif
1842
1843 io_blocktime = 0.;
1844 timeout_blocktime = 0.;
1845 backend = 0;
1846 backend_fd = -1;
1847 sig_pending = 0;
1848#if EV_ASYNC_ENABLE
1849 async_pending = 0;
1850#endif
1851 pipe_write_skipped = 0;
1852 pipe_write_wanted = 0;
1853#if EV_USE_INOTIFY
1854 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1855#endif
1856#if EV_USE_SIGNALFD
1857 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1858#endif
1859
1860 if (!(flags & EVBACKEND_MASK))
1579 flags |= ev_recommended_backends (); 1861 flags |= ev_recommended_backends ();
1580 1862
1863#if EV_USE_IOCP
1864 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1865#endif
1581#if EV_USE_PORT 1866#if EV_USE_PORT
1582 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1867 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1583#endif 1868#endif
1584#if EV_USE_KQUEUE 1869#if EV_USE_KQUEUE
1585 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1870 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1594 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1879 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1595#endif 1880#endif
1596 1881
1597 ev_prepare_init (&pending_w, pendingcb); 1882 ev_prepare_init (&pending_w, pendingcb);
1598 1883
1884#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1599 ev_init (&pipe_w, pipecb); 1885 ev_init (&pipe_w, pipecb);
1600 ev_set_priority (&pipe_w, EV_MAXPRI); 1886 ev_set_priority (&pipe_w, EV_MAXPRI);
1887#endif
1601 } 1888 }
1602} 1889}
1603 1890
1604/* free up a loop structure */ 1891/* free up a loop structure */
1605static void noinline 1892void ecb_cold
1606loop_destroy (EV_P) 1893ev_loop_destroy (EV_P)
1607{ 1894{
1608 int i; 1895 int i;
1896
1897#if EV_MULTIPLICITY
1898 /* mimic free (0) */
1899 if (!EV_A)
1900 return;
1901#endif
1902
1903#if EV_CLEANUP_ENABLE
1904 /* queue cleanup watchers (and execute them) */
1905 if (expect_false (cleanupcnt))
1906 {
1907 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1908 EV_INVOKE_PENDING;
1909 }
1910#endif
1911
1912#if EV_CHILD_ENABLE
1913 if (ev_is_active (&childev))
1914 {
1915 ev_ref (EV_A); /* child watcher */
1916 ev_signal_stop (EV_A_ &childev);
1917 }
1918#endif
1609 1919
1610 if (ev_is_active (&pipe_w)) 1920 if (ev_is_active (&pipe_w))
1611 { 1921 {
1612 /*ev_ref (EV_A);*/ 1922 /*ev_ref (EV_A);*/
1613 /*ev_io_stop (EV_A_ &pipe_w);*/ 1923 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1617 close (evfd); 1927 close (evfd);
1618#endif 1928#endif
1619 1929
1620 if (evpipe [0] >= 0) 1930 if (evpipe [0] >= 0)
1621 { 1931 {
1622 close (evpipe [0]); 1932 EV_WIN32_CLOSE_FD (evpipe [0]);
1623 close (evpipe [1]); 1933 EV_WIN32_CLOSE_FD (evpipe [1]);
1624 } 1934 }
1625 } 1935 }
1626 1936
1627#if EV_USE_SIGNALFD 1937#if EV_USE_SIGNALFD
1628 if (ev_is_active (&sigfd_w)) 1938 if (ev_is_active (&sigfd_w))
1629 {
1630 /*ev_ref (EV_A);*/
1631 /*ev_io_stop (EV_A_ &sigfd_w);*/
1632
1633 close (sigfd); 1939 close (sigfd);
1634 }
1635#endif 1940#endif
1636 1941
1637#if EV_USE_INOTIFY 1942#if EV_USE_INOTIFY
1638 if (fs_fd >= 0) 1943 if (fs_fd >= 0)
1639 close (fs_fd); 1944 close (fs_fd);
1640#endif 1945#endif
1641 1946
1642 if (backend_fd >= 0) 1947 if (backend_fd >= 0)
1643 close (backend_fd); 1948 close (backend_fd);
1644 1949
1950#if EV_USE_IOCP
1951 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1952#endif
1645#if EV_USE_PORT 1953#if EV_USE_PORT
1646 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1954 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1647#endif 1955#endif
1648#if EV_USE_KQUEUE 1956#if EV_USE_KQUEUE
1649 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1957 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1676 array_free (periodic, EMPTY); 1984 array_free (periodic, EMPTY);
1677#endif 1985#endif
1678#if EV_FORK_ENABLE 1986#if EV_FORK_ENABLE
1679 array_free (fork, EMPTY); 1987 array_free (fork, EMPTY);
1680#endif 1988#endif
1989#if EV_CLEANUP_ENABLE
1990 array_free (cleanup, EMPTY);
1991#endif
1681 array_free (prepare, EMPTY); 1992 array_free (prepare, EMPTY);
1682 array_free (check, EMPTY); 1993 array_free (check, EMPTY);
1683#if EV_ASYNC_ENABLE 1994#if EV_ASYNC_ENABLE
1684 array_free (async, EMPTY); 1995 array_free (async, EMPTY);
1685#endif 1996#endif
1686 1997
1687 backend = 0; 1998 backend = 0;
1999
2000#if EV_MULTIPLICITY
2001 if (ev_is_default_loop (EV_A))
2002#endif
2003 ev_default_loop_ptr = 0;
2004#if EV_MULTIPLICITY
2005 else
2006 ev_free (EV_A);
2007#endif
1688} 2008}
1689 2009
1690#if EV_USE_INOTIFY 2010#if EV_USE_INOTIFY
1691inline_size void infy_fork (EV_P); 2011inline_size void infy_fork (EV_P);
1692#endif 2012#endif
… …
1707 infy_fork (EV_A); 2027 infy_fork (EV_A);
1708#endif 2028#endif
1709 2029
1710 if (ev_is_active (&pipe_w)) 2030 if (ev_is_active (&pipe_w))
1711 { 2031 {
1712 /* this "locks" the handlers against writing to the pipe */ 2032 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1713 /* while we modify the fd vars */
1714 gotsig = 1;
1715#if EV_ASYNC_ENABLE
1716 gotasync = 1;
1717#endif
1718 2033
1719 ev_ref (EV_A); 2034 ev_ref (EV_A);
1720 ev_io_stop (EV_A_ &pipe_w); 2035 ev_io_stop (EV_A_ &pipe_w);
1721 2036
1722#if EV_USE_EVENTFD 2037#if EV_USE_EVENTFD
… …
1724 close (evfd); 2039 close (evfd);
1725#endif 2040#endif
1726 2041
1727 if (evpipe [0] >= 0) 2042 if (evpipe [0] >= 0)
1728 { 2043 {
1729 close (evpipe [0]); 2044 EV_WIN32_CLOSE_FD (evpipe [0]);
1730 close (evpipe [1]); 2045 EV_WIN32_CLOSE_FD (evpipe [1]);
1731 } 2046 }
1732 2047
2048#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1733 evpipe_init (EV_A); 2049 evpipe_init (EV_A);
1734 /* now iterate over everything, in case we missed something */ 2050 /* now iterate over everything, in case we missed something */
1735 pipecb (EV_A_ &pipe_w, EV_READ); 2051 pipecb (EV_A_ &pipe_w, EV_READ);
2052#endif
1736 } 2053 }
1737 2054
1738 postfork = 0; 2055 postfork = 0;
1739} 2056}
1740 2057
1741#if EV_MULTIPLICITY 2058#if EV_MULTIPLICITY
1742 2059
1743struct ev_loop * 2060struct ev_loop * ecb_cold
1744ev_loop_new (unsigned int flags) 2061ev_loop_new (unsigned int flags)
1745{ 2062{
1746 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2063 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1747 2064
1748 memset (loop, 0, sizeof (struct ev_loop)); 2065 memset (EV_A, 0, sizeof (struct ev_loop));
1749 loop_init (EV_A_ flags); 2066 loop_init (EV_A_ flags);
1750 2067
1751 if (ev_backend (EV_A)) 2068 if (ev_backend (EV_A))
1752 return loop; 2069 return EV_A;
1753 2070
2071 ev_free (EV_A);
1754 return 0; 2072 return 0;
1755} 2073}
1756 2074
1757void
1758ev_loop_destroy (EV_P)
1759{
1760 loop_destroy (EV_A);
1761 ev_free (loop);
1762}
1763
1764void
1765ev_loop_fork (EV_P)
1766{
1767 postfork = 1; /* must be in line with ev_default_fork */
1768}
1769#endif /* multiplicity */ 2075#endif /* multiplicity */
1770 2076
1771#if EV_VERIFY 2077#if EV_VERIFY
1772static void noinline 2078static void noinline ecb_cold
1773verify_watcher (EV_P_ W w) 2079verify_watcher (EV_P_ W w)
1774{ 2080{
1775 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2081 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1776 2082
1777 if (w->pending) 2083 if (w->pending)
1778 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2084 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1779} 2085}
1780 2086
1781static void noinline 2087static void noinline ecb_cold
1782verify_heap (EV_P_ ANHE *heap, int N) 2088verify_heap (EV_P_ ANHE *heap, int N)
1783{ 2089{
1784 int i; 2090 int i;
1785 2091
1786 for (i = HEAP0; i < N + HEAP0; ++i) 2092 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1791 2097
1792 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2098 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1793 } 2099 }
1794} 2100}
1795 2101
1796static void noinline 2102static void noinline ecb_cold
1797array_verify (EV_P_ W *ws, int cnt) 2103array_verify (EV_P_ W *ws, int cnt)
1798{ 2104{
1799 while (cnt--) 2105 while (cnt--)
1800 { 2106 {
1801 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2107 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1802 verify_watcher (EV_A_ ws [cnt]); 2108 verify_watcher (EV_A_ ws [cnt]);
1803 } 2109 }
1804} 2110}
1805#endif 2111#endif
1806 2112
1807#if EV_MINIMAL < 2 2113#if EV_FEATURE_API
1808void 2114void ecb_cold
1809ev_loop_verify (EV_P) 2115ev_verify (EV_P)
1810{ 2116{
1811#if EV_VERIFY 2117#if EV_VERIFY
1812 int i; 2118 int i;
1813 WL w; 2119 WL w;
1814 2120
… …
1848#if EV_FORK_ENABLE 2154#if EV_FORK_ENABLE
1849 assert (forkmax >= forkcnt); 2155 assert (forkmax >= forkcnt);
1850 array_verify (EV_A_ (W *)forks, forkcnt); 2156 array_verify (EV_A_ (W *)forks, forkcnt);
1851#endif 2157#endif
1852 2158
2159#if EV_CLEANUP_ENABLE
2160 assert (cleanupmax >= cleanupcnt);
2161 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2162#endif
2163
1853#if EV_ASYNC_ENABLE 2164#if EV_ASYNC_ENABLE
1854 assert (asyncmax >= asynccnt); 2165 assert (asyncmax >= asynccnt);
1855 array_verify (EV_A_ (W *)asyncs, asynccnt); 2166 array_verify (EV_A_ (W *)asyncs, asynccnt);
1856#endif 2167#endif
1857 2168
2169#if EV_PREPARE_ENABLE
1858 assert (preparemax >= preparecnt); 2170 assert (preparemax >= preparecnt);
1859 array_verify (EV_A_ (W *)prepares, preparecnt); 2171 array_verify (EV_A_ (W *)prepares, preparecnt);
2172#endif
1860 2173
2174#if EV_CHECK_ENABLE
1861 assert (checkmax >= checkcnt); 2175 assert (checkmax >= checkcnt);
1862 array_verify (EV_A_ (W *)checks, checkcnt); 2176 array_verify (EV_A_ (W *)checks, checkcnt);
2177#endif
1863 2178
1864# if 0 2179# if 0
2180#if EV_CHILD_ENABLE
1865 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2181 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1866 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2182 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2183#endif
1867# endif 2184# endif
1868#endif 2185#endif
1869} 2186}
1870#endif 2187#endif
1871 2188
1872#if EV_MULTIPLICITY 2189#if EV_MULTIPLICITY
1873struct ev_loop * 2190struct ev_loop * ecb_cold
1874ev_default_loop_init (unsigned int flags)
1875#else 2191#else
1876int 2192int
2193#endif
1877ev_default_loop (unsigned int flags) 2194ev_default_loop (unsigned int flags)
1878#endif
1879{ 2195{
1880 if (!ev_default_loop_ptr) 2196 if (!ev_default_loop_ptr)
1881 { 2197 {
1882#if EV_MULTIPLICITY 2198#if EV_MULTIPLICITY
1883 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2199 EV_P = ev_default_loop_ptr = &default_loop_struct;
1884#else 2200#else
1885 ev_default_loop_ptr = 1; 2201 ev_default_loop_ptr = 1;
1886#endif 2202#endif
1887 2203
1888 loop_init (EV_A_ flags); 2204 loop_init (EV_A_ flags);
1889 2205
1890 if (ev_backend (EV_A)) 2206 if (ev_backend (EV_A))
1891 { 2207 {
1892#ifndef _WIN32 2208#if EV_CHILD_ENABLE
1893 ev_signal_init (&childev, childcb, SIGCHLD); 2209 ev_signal_init (&childev, childcb, SIGCHLD);
1894 ev_set_priority (&childev, EV_MAXPRI); 2210 ev_set_priority (&childev, EV_MAXPRI);
1895 ev_signal_start (EV_A_ &childev); 2211 ev_signal_start (EV_A_ &childev);
1896 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2212 ev_unref (EV_A); /* child watcher should not keep loop alive */
1897#endif 2213#endif
… …
1902 2218
1903 return ev_default_loop_ptr; 2219 return ev_default_loop_ptr;
1904} 2220}
1905 2221
1906void 2222void
1907ev_default_destroy (void) 2223ev_loop_fork (EV_P)
1908{ 2224{
1909#if EV_MULTIPLICITY
1910 struct ev_loop *loop = ev_default_loop_ptr;
1911#endif
1912
1913 ev_default_loop_ptr = 0;
1914
1915#ifndef _WIN32
1916 ev_ref (EV_A); /* child watcher */
1917 ev_signal_stop (EV_A_ &childev);
1918#endif
1919
1920 loop_destroy (EV_A);
1921}
1922
1923void
1924ev_default_fork (void)
1925{
1926#if EV_MULTIPLICITY
1927 struct ev_loop *loop = ev_default_loop_ptr;
1928#endif
1929
1930 postfork = 1; /* must be in line with ev_loop_fork */ 2225 postfork = 1; /* must be in line with ev_default_fork */
1931} 2226}
1932 2227
1933/*****************************************************************************/ 2228/*****************************************************************************/
1934 2229
1935void 2230void
… …
1957 2252
1958 for (pri = NUMPRI; pri--; ) 2253 for (pri = NUMPRI; pri--; )
1959 while (pendingcnt [pri]) 2254 while (pendingcnt [pri])
1960 { 2255 {
1961 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2256 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1962
1963 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1964 /* ^ this is no longer true, as pending_w could be here */
1965 2257
1966 p->w->pending = 0; 2258 p->w->pending = 0;
1967 EV_CB_INVOKE (p->w, p->events); 2259 EV_CB_INVOKE (p->w, p->events);
1968 EV_FREQUENT_CHECK; 2260 EV_FREQUENT_CHECK;
1969 } 2261 }
… …
2026 EV_FREQUENT_CHECK; 2318 EV_FREQUENT_CHECK;
2027 feed_reverse (EV_A_ (W)w); 2319 feed_reverse (EV_A_ (W)w);
2028 } 2320 }
2029 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2321 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2030 2322
2031 feed_reverse_done (EV_A_ EV_TIMEOUT); 2323 feed_reverse_done (EV_A_ EV_TIMER);
2032 } 2324 }
2033} 2325}
2034 2326
2035#if EV_PERIODIC_ENABLE 2327#if EV_PERIODIC_ENABLE
2328
2329static void noinline
2330periodic_recalc (EV_P_ ev_periodic *w)
2331{
2332 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2333 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2334
2335 /* the above almost always errs on the low side */
2336 while (at <= ev_rt_now)
2337 {
2338 ev_tstamp nat = at + w->interval;
2339
2340 /* when resolution fails us, we use ev_rt_now */
2341 if (expect_false (nat == at))
2342 {
2343 at = ev_rt_now;
2344 break;
2345 }
2346
2347 at = nat;
2348 }
2349
2350 ev_at (w) = at;
2351}
2352
2036/* make periodics pending */ 2353/* make periodics pending */
2037inline_size void 2354inline_size void
2038periodics_reify (EV_P) 2355periodics_reify (EV_P)
2039{ 2356{
2040 EV_FREQUENT_CHECK; 2357 EV_FREQUENT_CHECK;
… …
2059 ANHE_at_cache (periodics [HEAP0]); 2376 ANHE_at_cache (periodics [HEAP0]);
2060 downheap (periodics, periodiccnt, HEAP0); 2377 downheap (periodics, periodiccnt, HEAP0);
2061 } 2378 }
2062 else if (w->interval) 2379 else if (w->interval)
2063 { 2380 {
2064 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2381 periodic_recalc (EV_A_ w);
2065 /* if next trigger time is not sufficiently in the future, put it there */
2066 /* this might happen because of floating point inexactness */
2067 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2068 {
2069 ev_at (w) += w->interval;
2070
2071 /* if interval is unreasonably low we might still have a time in the past */
2072 /* so correct this. this will make the periodic very inexact, but the user */
2073 /* has effectively asked to get triggered more often than possible */
2074 if (ev_at (w) < ev_rt_now)
2075 ev_at (w) = ev_rt_now;
2076 }
2077
2078 ANHE_at_cache (periodics [HEAP0]); 2382 ANHE_at_cache (periodics [HEAP0]);
2079 downheap (periodics, periodiccnt, HEAP0); 2383 downheap (periodics, periodiccnt, HEAP0);
2080 } 2384 }
2081 else 2385 else
2082 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2386 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2089 feed_reverse_done (EV_A_ EV_PERIODIC); 2393 feed_reverse_done (EV_A_ EV_PERIODIC);
2090 } 2394 }
2091} 2395}
2092 2396
2093/* simply recalculate all periodics */ 2397/* simply recalculate all periodics */
2094/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2398/* TODO: maybe ensure that at least one event happens when jumping forward? */
2095static void noinline 2399static void noinline ecb_cold
2096periodics_reschedule (EV_P) 2400periodics_reschedule (EV_P)
2097{ 2401{
2098 int i; 2402 int i;
2099 2403
2100 /* adjust periodics after time jump */ 2404 /* adjust periodics after time jump */
… …
2103 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2407 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2104 2408
2105 if (w->reschedule_cb) 2409 if (w->reschedule_cb)
2106 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2410 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2107 else if (w->interval) 2411 else if (w->interval)
2108 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2412 periodic_recalc (EV_A_ w);
2109 2413
2110 ANHE_at_cache (periodics [i]); 2414 ANHE_at_cache (periodics [i]);
2111 } 2415 }
2112 2416
2113 reheap (periodics, periodiccnt); 2417 reheap (periodics, periodiccnt);
2114} 2418}
2115#endif 2419#endif
2116 2420
2117/* adjust all timers by a given offset */ 2421/* adjust all timers by a given offset */
2118static void noinline 2422static void noinline ecb_cold
2119timers_reschedule (EV_P_ ev_tstamp adjust) 2423timers_reschedule (EV_P_ ev_tstamp adjust)
2120{ 2424{
2121 int i; 2425 int i;
2122 2426
2123 for (i = 0; i < timercnt; ++i) 2427 for (i = 0; i < timercnt; ++i)
… …
2127 ANHE_at_cache (*he); 2431 ANHE_at_cache (*he);
2128 } 2432 }
2129} 2433}
2130 2434
2131/* fetch new monotonic and realtime times from the kernel */ 2435/* fetch new monotonic and realtime times from the kernel */
2132/* also detetc if there was a timejump, and act accordingly */ 2436/* also detect if there was a timejump, and act accordingly */
2133inline_speed void 2437inline_speed void
2134time_update (EV_P_ ev_tstamp max_block) 2438time_update (EV_P_ ev_tstamp max_block)
2135{ 2439{
2136#if EV_USE_MONOTONIC 2440#if EV_USE_MONOTONIC
2137 if (expect_true (have_monotonic)) 2441 if (expect_true (have_monotonic))
… …
2160 * doesn't hurt either as we only do this on time-jumps or 2464 * doesn't hurt either as we only do this on time-jumps or
2161 * in the unlikely event of having been preempted here. 2465 * in the unlikely event of having been preempted here.
2162 */ 2466 */
2163 for (i = 4; --i; ) 2467 for (i = 4; --i; )
2164 { 2468 {
2469 ev_tstamp diff;
2165 rtmn_diff = ev_rt_now - mn_now; 2470 rtmn_diff = ev_rt_now - mn_now;
2166 2471
2472 diff = odiff - rtmn_diff;
2473
2167 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2474 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2168 return; /* all is well */ 2475 return; /* all is well */
2169 2476
2170 ev_rt_now = ev_time (); 2477 ev_rt_now = ev_time ();
2171 mn_now = get_clock (); 2478 mn_now = get_clock ();
2172 now_floor = mn_now; 2479 now_floor = mn_now;
… …
2195 mn_now = ev_rt_now; 2502 mn_now = ev_rt_now;
2196 } 2503 }
2197} 2504}
2198 2505
2199void 2506void
2200ev_loop (EV_P_ int flags) 2507ev_run (EV_P_ int flags)
2201{ 2508{
2202#if EV_MINIMAL < 2 2509#if EV_FEATURE_API
2203 ++loop_depth; 2510 ++loop_depth;
2204#endif 2511#endif
2205 2512
2206 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2513 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2207 2514
2208 loop_done = EVUNLOOP_CANCEL; 2515 loop_done = EVBREAK_CANCEL;
2209 2516
2210 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2517 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2211 2518
2212 do 2519 do
2213 { 2520 {
2214#if EV_VERIFY >= 2 2521#if EV_VERIFY >= 2
2215 ev_loop_verify (EV_A); 2522 ev_verify (EV_A);
2216#endif 2523#endif
2217 2524
2218#ifndef _WIN32 2525#ifndef _WIN32
2219 if (expect_false (curpid)) /* penalise the forking check even more */ 2526 if (expect_false (curpid)) /* penalise the forking check even more */
2220 if (expect_false (getpid () != curpid)) 2527 if (expect_false (getpid () != curpid))
… …
2232 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2539 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2233 EV_INVOKE_PENDING; 2540 EV_INVOKE_PENDING;
2234 } 2541 }
2235#endif 2542#endif
2236 2543
2544#if EV_PREPARE_ENABLE
2237 /* queue prepare watchers (and execute them) */ 2545 /* queue prepare watchers (and execute them) */
2238 if (expect_false (preparecnt)) 2546 if (expect_false (preparecnt))
2239 { 2547 {
2240 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2548 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2241 EV_INVOKE_PENDING; 2549 EV_INVOKE_PENDING;
2242 } 2550 }
2551#endif
2243 2552
2244 if (expect_false (loop_done)) 2553 if (expect_false (loop_done))
2245 break; 2554 break;
2246 2555
2247 /* we might have forked, so reify kernel state if necessary */ 2556 /* we might have forked, so reify kernel state if necessary */
… …
2254 /* calculate blocking time */ 2563 /* calculate blocking time */
2255 { 2564 {
2256 ev_tstamp waittime = 0.; 2565 ev_tstamp waittime = 0.;
2257 ev_tstamp sleeptime = 0.; 2566 ev_tstamp sleeptime = 0.;
2258 2567
2568 /* remember old timestamp for io_blocktime calculation */
2569 ev_tstamp prev_mn_now = mn_now;
2570
2571 /* update time to cancel out callback processing overhead */
2572 time_update (EV_A_ 1e100);
2573
2574 /* from now on, we want a pipe-wake-up */
2575 pipe_write_wanted = 1;
2576
2259 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2577 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2260 { 2578 {
2261 /* remember old timestamp for io_blocktime calculation */
2262 ev_tstamp prev_mn_now = mn_now;
2263
2264 /* update time to cancel out callback processing overhead */
2265 time_update (EV_A_ 1e100);
2266
2267 waittime = MAX_BLOCKTIME; 2579 waittime = MAX_BLOCKTIME;
2268 2580
2269 if (timercnt) 2581 if (timercnt)
2270 { 2582 {
2271 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2583 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2272 if (waittime > to) waittime = to; 2584 if (waittime > to) waittime = to;
2273 } 2585 }
2274 2586
2275#if EV_PERIODIC_ENABLE 2587#if EV_PERIODIC_ENABLE
2276 if (periodiccnt) 2588 if (periodiccnt)
2277 { 2589 {
2278 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2590 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2279 if (waittime > to) waittime = to; 2591 if (waittime > to) waittime = to;
2280 } 2592 }
2281#endif 2593#endif
2282 2594
2283 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2595 /* don't let timeouts decrease the waittime below timeout_blocktime */
2284 if (expect_false (waittime < timeout_blocktime)) 2596 if (expect_false (waittime < timeout_blocktime))
2285 waittime = timeout_blocktime; 2597 waittime = timeout_blocktime;
2598
2599 /* at this point, we NEED to wait, so we have to ensure */
2600 /* to pass a minimum nonzero value to the backend */
2601 if (expect_false (waittime < backend_mintime))
2602 waittime = backend_mintime;
2286 2603
2287 /* extra check because io_blocktime is commonly 0 */ 2604 /* extra check because io_blocktime is commonly 0 */
2288 if (expect_false (io_blocktime)) 2605 if (expect_false (io_blocktime))
2289 { 2606 {
2290 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2607 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2291 2608
2292 if (sleeptime > waittime - backend_fudge) 2609 if (sleeptime > waittime - backend_mintime)
2293 sleeptime = waittime - backend_fudge; 2610 sleeptime = waittime - backend_mintime;
2294 2611
2295 if (expect_true (sleeptime > 0.)) 2612 if (expect_true (sleeptime > 0.))
2296 { 2613 {
2297 ev_sleep (sleeptime); 2614 ev_sleep (sleeptime);
2298 waittime -= sleeptime; 2615 waittime -= sleeptime;
2299 } 2616 }
2300 } 2617 }
2301 } 2618 }
2302 2619
2303#if EV_MINIMAL < 2 2620#if EV_FEATURE_API
2304 ++loop_count; 2621 ++loop_count;
2305#endif 2622#endif
2306 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2623 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2307 backend_poll (EV_A_ waittime); 2624 backend_poll (EV_A_ waittime);
2308 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2625 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2626
2627 pipe_write_wanted = 0;
2628
2629 if (pipe_write_skipped)
2630 {
2631 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2632 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2633 }
2634
2309 2635
2310 /* update ev_rt_now, do magic */ 2636 /* update ev_rt_now, do magic */
2311 time_update (EV_A_ waittime + sleeptime); 2637 time_update (EV_A_ waittime + sleeptime);
2312 } 2638 }
2313 2639
… …
2320#if EV_IDLE_ENABLE 2646#if EV_IDLE_ENABLE
2321 /* queue idle watchers unless other events are pending */ 2647 /* queue idle watchers unless other events are pending */
2322 idle_reify (EV_A); 2648 idle_reify (EV_A);
2323#endif 2649#endif
2324 2650
2651#if EV_CHECK_ENABLE
2325 /* queue check watchers, to be executed first */ 2652 /* queue check watchers, to be executed first */
2326 if (expect_false (checkcnt)) 2653 if (expect_false (checkcnt))
2327 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2654 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2655#endif
2328 2656
2329 EV_INVOKE_PENDING; 2657 EV_INVOKE_PENDING;
2330 } 2658 }
2331 while (expect_true ( 2659 while (expect_true (
2332 activecnt 2660 activecnt
2333 && !loop_done 2661 && !loop_done
2334 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2662 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2335 )); 2663 ));
2336 2664
2337 if (loop_done == EVUNLOOP_ONE) 2665 if (loop_done == EVBREAK_ONE)
2338 loop_done = EVUNLOOP_CANCEL; 2666 loop_done = EVBREAK_CANCEL;
2339 2667
2340#if EV_MINIMAL < 2 2668#if EV_FEATURE_API
2341 --loop_depth; 2669 --loop_depth;
2342#endif 2670#endif
2343} 2671}
2344 2672
2345void 2673void
2346ev_unloop (EV_P_ int how) 2674ev_break (EV_P_ int how)
2347{ 2675{
2348 loop_done = how; 2676 loop_done = how;
2349} 2677}
2350 2678
2351void 2679void
… …
2398inline_size void 2726inline_size void
2399wlist_del (WL *head, WL elem) 2727wlist_del (WL *head, WL elem)
2400{ 2728{
2401 while (*head) 2729 while (*head)
2402 { 2730 {
2403 if (*head == elem) 2731 if (expect_true (*head == elem))
2404 { 2732 {
2405 *head = elem->next; 2733 *head = elem->next;
2406 return; 2734 break;
2407 } 2735 }
2408 2736
2409 head = &(*head)->next; 2737 head = &(*head)->next;
2410 } 2738 }
2411} 2739}
… …
2471 2799
2472 if (expect_false (ev_is_active (w))) 2800 if (expect_false (ev_is_active (w)))
2473 return; 2801 return;
2474 2802
2475 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2803 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2476 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2804 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2477 2805
2478 EV_FREQUENT_CHECK; 2806 EV_FREQUENT_CHECK;
2479 2807
2480 ev_start (EV_A_ (W)w, 1); 2808 ev_start (EV_A_ (W)w, 1);
2481 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2809 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2499 EV_FREQUENT_CHECK; 2827 EV_FREQUENT_CHECK;
2500 2828
2501 wlist_del (&anfds[w->fd].head, (WL)w); 2829 wlist_del (&anfds[w->fd].head, (WL)w);
2502 ev_stop (EV_A_ (W)w); 2830 ev_stop (EV_A_ (W)w);
2503 2831
2504 fd_change (EV_A_ w->fd, 1); 2832 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2505 2833
2506 EV_FREQUENT_CHECK; 2834 EV_FREQUENT_CHECK;
2507} 2835}
2508 2836
2509void noinline 2837void noinline
… …
2551 timers [active] = timers [timercnt + HEAP0]; 2879 timers [active] = timers [timercnt + HEAP0];
2552 adjustheap (timers, timercnt, active); 2880 adjustheap (timers, timercnt, active);
2553 } 2881 }
2554 } 2882 }
2555 2883
2556 EV_FREQUENT_CHECK;
2557
2558 ev_at (w) -= mn_now; 2884 ev_at (w) -= mn_now;
2559 2885
2560 ev_stop (EV_A_ (W)w); 2886 ev_stop (EV_A_ (W)w);
2887
2888 EV_FREQUENT_CHECK;
2561} 2889}
2562 2890
2563void noinline 2891void noinline
2564ev_timer_again (EV_P_ ev_timer *w) 2892ev_timer_again (EV_P_ ev_timer *w)
2565{ 2893{
… …
2601 if (w->reschedule_cb) 2929 if (w->reschedule_cb)
2602 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2930 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2603 else if (w->interval) 2931 else if (w->interval)
2604 { 2932 {
2605 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2933 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2606 /* this formula differs from the one in periodic_reify because we do not always round up */ 2934 periodic_recalc (EV_A_ w);
2607 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2608 } 2935 }
2609 else 2936 else
2610 ev_at (w) = w->offset; 2937 ev_at (w) = w->offset;
2611 2938
2612 EV_FREQUENT_CHECK; 2939 EV_FREQUENT_CHECK;
… …
2644 periodics [active] = periodics [periodiccnt + HEAP0]; 2971 periodics [active] = periodics [periodiccnt + HEAP0];
2645 adjustheap (periodics, periodiccnt, active); 2972 adjustheap (periodics, periodiccnt, active);
2646 } 2973 }
2647 } 2974 }
2648 2975
2649 EV_FREQUENT_CHECK;
2650
2651 ev_stop (EV_A_ (W)w); 2976 ev_stop (EV_A_ (W)w);
2977
2978 EV_FREQUENT_CHECK;
2652} 2979}
2653 2980
2654void noinline 2981void noinline
2655ev_periodic_again (EV_P_ ev_periodic *w) 2982ev_periodic_again (EV_P_ ev_periodic *w)
2656{ 2983{
… …
2662 2989
2663#ifndef SA_RESTART 2990#ifndef SA_RESTART
2664# define SA_RESTART 0 2991# define SA_RESTART 0
2665#endif 2992#endif
2666 2993
2994#if EV_SIGNAL_ENABLE
2995
2667void noinline 2996void noinline
2668ev_signal_start (EV_P_ ev_signal *w) 2997ev_signal_start (EV_P_ ev_signal *w)
2669{ 2998{
2670#if EV_MULTIPLICITY
2671 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2672#endif
2673 if (expect_false (ev_is_active (w))) 2999 if (expect_false (ev_is_active (w)))
2674 return; 3000 return;
2675 3001
2676 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3002 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3003
3004#if EV_MULTIPLICITY
3005 assert (("libev: a signal must not be attached to two different loops",
3006 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3007
3008 signals [w->signum - 1].loop = EV_A;
3009#endif
2677 3010
2678 EV_FREQUENT_CHECK; 3011 EV_FREQUENT_CHECK;
2679 3012
2680#if EV_USE_SIGNALFD 3013#if EV_USE_SIGNALFD
2681 if (sigfd == -2) 3014 if (sigfd == -2)
… …
2703 sigaddset (&sigfd_set, w->signum); 3036 sigaddset (&sigfd_set, w->signum);
2704 sigprocmask (SIG_BLOCK, &sigfd_set, 0); 3037 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2705 3038
2706 signalfd (sigfd, &sigfd_set, 0); 3039 signalfd (sigfd, &sigfd_set, 0);
2707 } 3040 }
2708 else
2709#endif
2710 evpipe_init (EV_A);
2711
2712 {
2713#ifndef _WIN32
2714 sigset_t full, prev;
2715 sigfillset (&full);
2716 sigprocmask (SIG_SETMASK, &full, &prev);
2717#endif
2718
2719 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2720
2721#ifndef _WIN32
2722# if EV_USE_SIGNALFD
2723 if (sigfd < 0)/*TODO*/
2724# endif 3041#endif
2725 sigdelset (&prev, w->signum);
2726 sigprocmask (SIG_SETMASK, &prev, 0);
2727#endif
2728 }
2729 3042
2730 ev_start (EV_A_ (W)w, 1); 3043 ev_start (EV_A_ (W)w, 1);
2731 wlist_add (&signals [w->signum - 1].head, (WL)w); 3044 wlist_add (&signals [w->signum - 1].head, (WL)w);
2732 3045
2733 if (!((WL)w)->next) 3046 if (!((WL)w)->next)
2734 {
2735#if _WIN32
2736 signal (w->signum, ev_sighandler);
2737#else
2738# if EV_USE_SIGNALFD 3047# if EV_USE_SIGNALFD
2739 if (sigfd < 0) /*TODO*/ 3048 if (sigfd < 0) /*TODO*/
2740# endif 3049# endif
2741 { 3050 {
3051# ifdef _WIN32
3052 evpipe_init (EV_A);
3053
3054 signal (w->signum, ev_sighandler);
3055# else
2742 struct sigaction sa = { }; 3056 struct sigaction sa;
3057
3058 evpipe_init (EV_A);
3059
2743 sa.sa_handler = ev_sighandler; 3060 sa.sa_handler = ev_sighandler;
2744 sigfillset (&sa.sa_mask); 3061 sigfillset (&sa.sa_mask);
2745 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3062 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2746 sigaction (w->signum, &sa, 0); 3063 sigaction (w->signum, &sa, 0);
3064
3065 if (origflags & EVFLAG_NOSIGMASK)
3066 {
3067 sigemptyset (&sa.sa_mask);
3068 sigaddset (&sa.sa_mask, w->signum);
3069 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2747 } 3070 }
2748#endif 3071#endif
2749 } 3072 }
2750 3073
2751 EV_FREQUENT_CHECK; 3074 EV_FREQUENT_CHECK;
2752} 3075}
2753 3076
2754void noinline 3077void noinline
… …
2762 3085
2763 wlist_del (&signals [w->signum - 1].head, (WL)w); 3086 wlist_del (&signals [w->signum - 1].head, (WL)w);
2764 ev_stop (EV_A_ (W)w); 3087 ev_stop (EV_A_ (W)w);
2765 3088
2766 if (!signals [w->signum - 1].head) 3089 if (!signals [w->signum - 1].head)
3090 {
3091#if EV_MULTIPLICITY
3092 signals [w->signum - 1].loop = 0; /* unattach from signal */
3093#endif
2767#if EV_USE_SIGNALFD 3094#if EV_USE_SIGNALFD
2768 if (sigfd >= 0) 3095 if (sigfd >= 0)
2769 { 3096 {
2770 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 3097 sigset_t ss;
3098
3099 sigemptyset (&ss);
3100 sigaddset (&ss, w->signum);
2771 sigdelset (&sigfd_set, w->signum); 3101 sigdelset (&sigfd_set, w->signum);
3102
2772 signalfd (sigfd, &sigfd_set, 0); 3103 signalfd (sigfd, &sigfd_set, 0);
2773 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 3104 sigprocmask (SIG_UNBLOCK, &ss, 0);
2774 /*TODO: maybe unblock signal? */
2775 } 3105 }
2776 else 3106 else
2777#endif 3107#endif
2778 signal (w->signum, SIG_DFL); 3108 signal (w->signum, SIG_DFL);
3109 }
2779 3110
2780 EV_FREQUENT_CHECK; 3111 EV_FREQUENT_CHECK;
2781} 3112}
3113
3114#endif
3115
3116#if EV_CHILD_ENABLE
2782 3117
2783void 3118void
2784ev_child_start (EV_P_ ev_child *w) 3119ev_child_start (EV_P_ ev_child *w)
2785{ 3120{
2786#if EV_MULTIPLICITY 3121#if EV_MULTIPLICITY
… …
2790 return; 3125 return;
2791 3126
2792 EV_FREQUENT_CHECK; 3127 EV_FREQUENT_CHECK;
2793 3128
2794 ev_start (EV_A_ (W)w, 1); 3129 ev_start (EV_A_ (W)w, 1);
2795 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3130 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2796 3131
2797 EV_FREQUENT_CHECK; 3132 EV_FREQUENT_CHECK;
2798} 3133}
2799 3134
2800void 3135void
… …
2804 if (expect_false (!ev_is_active (w))) 3139 if (expect_false (!ev_is_active (w)))
2805 return; 3140 return;
2806 3141
2807 EV_FREQUENT_CHECK; 3142 EV_FREQUENT_CHECK;
2808 3143
2809 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3144 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2810 ev_stop (EV_A_ (W)w); 3145 ev_stop (EV_A_ (W)w);
2811 3146
2812 EV_FREQUENT_CHECK; 3147 EV_FREQUENT_CHECK;
2813} 3148}
3149
3150#endif
2814 3151
2815#if EV_STAT_ENABLE 3152#if EV_STAT_ENABLE
2816 3153
2817# ifdef _WIN32 3154# ifdef _WIN32
2818# undef lstat 3155# undef lstat
… …
2824#define MIN_STAT_INTERVAL 0.1074891 3161#define MIN_STAT_INTERVAL 0.1074891
2825 3162
2826static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3163static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2827 3164
2828#if EV_USE_INOTIFY 3165#if EV_USE_INOTIFY
2829# define EV_INOTIFY_BUFSIZE 8192 3166
3167/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3168# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2830 3169
2831static void noinline 3170static void noinline
2832infy_add (EV_P_ ev_stat *w) 3171infy_add (EV_P_ ev_stat *w)
2833{ 3172{
2834 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); 3173 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);
2835 3174
2836 if (w->wd < 0) 3175 if (w->wd >= 0)
3176 {
3177 struct statfs sfs;
3178
3179 /* now local changes will be tracked by inotify, but remote changes won't */
3180 /* unless the filesystem is known to be local, we therefore still poll */
3181 /* also do poll on <2.6.25, but with normal frequency */
3182
3183 if (!fs_2625)
3184 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3185 else if (!statfs (w->path, &sfs)
3186 && (sfs.f_type == 0x1373 /* devfs */
3187 || sfs.f_type == 0xEF53 /* ext2/3 */
3188 || sfs.f_type == 0x3153464a /* jfs */
3189 || sfs.f_type == 0x52654973 /* reiser3 */
3190 || sfs.f_type == 0x01021994 /* tempfs */
3191 || sfs.f_type == 0x58465342 /* xfs */))
3192 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3193 else
3194 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2837 { 3195 }
3196 else
3197 {
3198 /* can't use inotify, continue to stat */
2838 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3199 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2839 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2840 3200
2841 /* monitor some parent directory for speedup hints */ 3201 /* if path is not there, monitor some parent directory for speedup hints */
2842 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3202 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2843 /* but an efficiency issue only */ 3203 /* but an efficiency issue only */
2844 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3204 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2845 { 3205 {
2846 char path [4096]; 3206 char path [4096];
… …
2856 if (!pend || pend == path) 3216 if (!pend || pend == path)
2857 break; 3217 break;
2858 3218
2859 *pend = 0; 3219 *pend = 0;
2860 w->wd = inotify_add_watch (fs_fd, path, mask); 3220 w->wd = inotify_add_watch (fs_fd, path, mask);
2861 } 3221 }
2862 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3222 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2863 } 3223 }
2864 } 3224 }
2865 3225
2866 if (w->wd >= 0) 3226 if (w->wd >= 0)
2867 {
2868 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3227 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2869 3228
2870 /* now local changes will be tracked by inotify, but remote changes won't */ 3229 /* now re-arm timer, if required */
2871 /* unless the filesystem it known to be local, we therefore still poll */ 3230 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2872 /* also do poll on <2.6.25, but with normal frequency */
2873 struct statfs sfs;
2874
2875 if (fs_2625 && !statfs (w->path, &sfs))
2876 if (sfs.f_type == 0x1373 /* devfs */
2877 || sfs.f_type == 0xEF53 /* ext2/3 */
2878 || sfs.f_type == 0x3153464a /* jfs */
2879 || sfs.f_type == 0x52654973 /* reiser3 */
2880 || sfs.f_type == 0x01021994 /* tempfs */
2881 || sfs.f_type == 0x58465342 /* xfs */)
2882 return;
2883
2884 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2885 ev_timer_again (EV_A_ &w->timer); 3231 ev_timer_again (EV_A_ &w->timer);
2886 } 3232 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2887} 3233}
2888 3234
2889static void noinline 3235static void noinline
2890infy_del (EV_P_ ev_stat *w) 3236infy_del (EV_P_ ev_stat *w)
2891{ 3237{
… …
2894 3240
2895 if (wd < 0) 3241 if (wd < 0)
2896 return; 3242 return;
2897 3243
2898 w->wd = -2; 3244 w->wd = -2;
2899 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3245 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2900 wlist_del (&fs_hash [slot].head, (WL)w); 3246 wlist_del (&fs_hash [slot].head, (WL)w);
2901 3247
2902 /* remove this watcher, if others are watching it, they will rearm */ 3248 /* remove this watcher, if others are watching it, they will rearm */
2903 inotify_rm_watch (fs_fd, wd); 3249 inotify_rm_watch (fs_fd, wd);
2904} 3250}
… …
2906static void noinline 3252static void noinline
2907infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3253infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2908{ 3254{
2909 if (slot < 0) 3255 if (slot < 0)
2910 /* overflow, need to check for all hash slots */ 3256 /* overflow, need to check for all hash slots */
2911 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3257 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2912 infy_wd (EV_A_ slot, wd, ev); 3258 infy_wd (EV_A_ slot, wd, ev);
2913 else 3259 else
2914 { 3260 {
2915 WL w_; 3261 WL w_;
2916 3262
2917 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3263 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2918 { 3264 {
2919 ev_stat *w = (ev_stat *)w_; 3265 ev_stat *w = (ev_stat *)w_;
2920 w_ = w_->next; /* lets us remove this watcher and all before it */ 3266 w_ = w_->next; /* lets us remove this watcher and all before it */
2921 3267
2922 if (w->wd == wd || wd == -1) 3268 if (w->wd == wd || wd == -1)
2923 { 3269 {
2924 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3270 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2925 { 3271 {
2926 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3272 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2927 w->wd = -1; 3273 w->wd = -1;
2928 infy_add (EV_A_ w); /* re-add, no matter what */ 3274 infy_add (EV_A_ w); /* re-add, no matter what */
2929 } 3275 }
2930 3276
2931 stat_timer_cb (EV_A_ &w->timer, 0); 3277 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2936 3282
2937static void 3283static void
2938infy_cb (EV_P_ ev_io *w, int revents) 3284infy_cb (EV_P_ ev_io *w, int revents)
2939{ 3285{
2940 char buf [EV_INOTIFY_BUFSIZE]; 3286 char buf [EV_INOTIFY_BUFSIZE];
2941 struct inotify_event *ev = (struct inotify_event *)buf;
2942 int ofs; 3287 int ofs;
2943 int len = read (fs_fd, buf, sizeof (buf)); 3288 int len = read (fs_fd, buf, sizeof (buf));
2944 3289
2945 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3290 for (ofs = 0; ofs < len; )
3291 {
3292 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2946 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3293 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3294 ofs += sizeof (struct inotify_event) + ev->len;
3295 }
2947} 3296}
2948 3297
2949inline_size void 3298inline_size void ecb_cold
2950check_2625 (EV_P) 3299ev_check_2625 (EV_P)
2951{ 3300{
2952 /* kernels < 2.6.25 are borked 3301 /* kernels < 2.6.25 are borked
2953 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3302 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2954 */ 3303 */
2955 struct utsname buf; 3304 if (ev_linux_version () < 0x020619)
2956 int major, minor, micro;
2957
2958 if (uname (&buf))
2959 return; 3305 return;
2960 3306
2961 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2962 return;
2963
2964 if (major < 2
2965 || (major == 2 && minor < 6)
2966 || (major == 2 && minor == 6 && micro < 25))
2967 return;
2968
2969 fs_2625 = 1; 3307 fs_2625 = 1;
3308}
3309
3310inline_size int
3311infy_newfd (void)
3312{
3313#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3314 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3315 if (fd >= 0)
3316 return fd;
3317#endif
3318 return inotify_init ();
2970} 3319}
2971 3320
2972inline_size void 3321inline_size void
2973infy_init (EV_P) 3322infy_init (EV_P)
2974{ 3323{
2975 if (fs_fd != -2) 3324 if (fs_fd != -2)
2976 return; 3325 return;
2977 3326
2978 fs_fd = -1; 3327 fs_fd = -1;
2979 3328
2980 check_2625 (EV_A); 3329 ev_check_2625 (EV_A);
2981 3330
2982 fs_fd = inotify_init (); 3331 fs_fd = infy_newfd ();
2983 3332
2984 if (fs_fd >= 0) 3333 if (fs_fd >= 0)
2985 { 3334 {
3335 fd_intern (fs_fd);
2986 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3336 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2987 ev_set_priority (&fs_w, EV_MAXPRI); 3337 ev_set_priority (&fs_w, EV_MAXPRI);
2988 ev_io_start (EV_A_ &fs_w); 3338 ev_io_start (EV_A_ &fs_w);
3339 ev_unref (EV_A);
2989 } 3340 }
2990} 3341}
2991 3342
2992inline_size void 3343inline_size void
2993infy_fork (EV_P) 3344infy_fork (EV_P)
… …
2995 int slot; 3346 int slot;
2996 3347
2997 if (fs_fd < 0) 3348 if (fs_fd < 0)
2998 return; 3349 return;
2999 3350
3351 ev_ref (EV_A);
3352 ev_io_stop (EV_A_ &fs_w);
3000 close (fs_fd); 3353 close (fs_fd);
3001 fs_fd = inotify_init (); 3354 fs_fd = infy_newfd ();
3002 3355
3356 if (fs_fd >= 0)
3357 {
3358 fd_intern (fs_fd);
3359 ev_io_set (&fs_w, fs_fd, EV_READ);
3360 ev_io_start (EV_A_ &fs_w);
3361 ev_unref (EV_A);
3362 }
3363
3003 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3364 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3004 { 3365 {
3005 WL w_ = fs_hash [slot].head; 3366 WL w_ = fs_hash [slot].head;
3006 fs_hash [slot].head = 0; 3367 fs_hash [slot].head = 0;
3007 3368
3008 while (w_) 3369 while (w_)
… …
3013 w->wd = -1; 3374 w->wd = -1;
3014 3375
3015 if (fs_fd >= 0) 3376 if (fs_fd >= 0)
3016 infy_add (EV_A_ w); /* re-add, no matter what */ 3377 infy_add (EV_A_ w); /* re-add, no matter what */
3017 else 3378 else
3379 {
3380 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3381 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3018 ev_timer_again (EV_A_ &w->timer); 3382 ev_timer_again (EV_A_ &w->timer);
3383 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3384 }
3019 } 3385 }
3020 } 3386 }
3021} 3387}
3022 3388
3023#endif 3389#endif
… …
3040static void noinline 3406static void noinline
3041stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3407stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3042{ 3408{
3043 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3409 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3044 3410
3045 /* we copy this here each the time so that */ 3411 ev_statdata prev = w->attr;
3046 /* prev has the old value when the callback gets invoked */
3047 w->prev = w->attr;
3048 ev_stat_stat (EV_A_ w); 3412 ev_stat_stat (EV_A_ w);
3049 3413
3050 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3414 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3051 if ( 3415 if (
3052 w->prev.st_dev != w->attr.st_dev 3416 prev.st_dev != w->attr.st_dev
3053 || w->prev.st_ino != w->attr.st_ino 3417 || prev.st_ino != w->attr.st_ino
3054 || w->prev.st_mode != w->attr.st_mode 3418 || prev.st_mode != w->attr.st_mode
3055 || w->prev.st_nlink != w->attr.st_nlink 3419 || prev.st_nlink != w->attr.st_nlink
3056 || w->prev.st_uid != w->attr.st_uid 3420 || prev.st_uid != w->attr.st_uid
3057 || w->prev.st_gid != w->attr.st_gid 3421 || prev.st_gid != w->attr.st_gid
3058 || w->prev.st_rdev != w->attr.st_rdev 3422 || prev.st_rdev != w->attr.st_rdev
3059 || w->prev.st_size != w->attr.st_size 3423 || prev.st_size != w->attr.st_size
3060 || w->prev.st_atime != w->attr.st_atime 3424 || prev.st_atime != w->attr.st_atime
3061 || w->prev.st_mtime != w->attr.st_mtime 3425 || prev.st_mtime != w->attr.st_mtime
3062 || w->prev.st_ctime != w->attr.st_ctime 3426 || prev.st_ctime != w->attr.st_ctime
3063 ) { 3427 ) {
3428 /* we only update w->prev on actual differences */
3429 /* in case we test more often than invoke the callback, */
3430 /* to ensure that prev is always different to attr */
3431 w->prev = prev;
3432
3064 #if EV_USE_INOTIFY 3433 #if EV_USE_INOTIFY
3065 if (fs_fd >= 0) 3434 if (fs_fd >= 0)
3066 { 3435 {
3067 infy_del (EV_A_ w); 3436 infy_del (EV_A_ w);
3068 infy_add (EV_A_ w); 3437 infy_add (EV_A_ w);
… …
3093 3462
3094 if (fs_fd >= 0) 3463 if (fs_fd >= 0)
3095 infy_add (EV_A_ w); 3464 infy_add (EV_A_ w);
3096 else 3465 else
3097#endif 3466#endif
3467 {
3098 ev_timer_again (EV_A_ &w->timer); 3468 ev_timer_again (EV_A_ &w->timer);
3469 ev_unref (EV_A);
3470 }
3099 3471
3100 ev_start (EV_A_ (W)w, 1); 3472 ev_start (EV_A_ (W)w, 1);
3101 3473
3102 EV_FREQUENT_CHECK; 3474 EV_FREQUENT_CHECK;
3103} 3475}
… …
3112 EV_FREQUENT_CHECK; 3484 EV_FREQUENT_CHECK;
3113 3485
3114#if EV_USE_INOTIFY 3486#if EV_USE_INOTIFY
3115 infy_del (EV_A_ w); 3487 infy_del (EV_A_ w);
3116#endif 3488#endif
3489
3490 if (ev_is_active (&w->timer))
3491 {
3492 ev_ref (EV_A);
3117 ev_timer_stop (EV_A_ &w->timer); 3493 ev_timer_stop (EV_A_ &w->timer);
3494 }
3118 3495
3119 ev_stop (EV_A_ (W)w); 3496 ev_stop (EV_A_ (W)w);
3120 3497
3121 EV_FREQUENT_CHECK; 3498 EV_FREQUENT_CHECK;
3122} 3499}
… …
3167 3544
3168 EV_FREQUENT_CHECK; 3545 EV_FREQUENT_CHECK;
3169} 3546}
3170#endif 3547#endif
3171 3548
3549#if EV_PREPARE_ENABLE
3172void 3550void
3173ev_prepare_start (EV_P_ ev_prepare *w) 3551ev_prepare_start (EV_P_ ev_prepare *w)
3174{ 3552{
3175 if (expect_false (ev_is_active (w))) 3553 if (expect_false (ev_is_active (w)))
3176 return; 3554 return;
… …
3202 3580
3203 ev_stop (EV_A_ (W)w); 3581 ev_stop (EV_A_ (W)w);
3204 3582
3205 EV_FREQUENT_CHECK; 3583 EV_FREQUENT_CHECK;
3206} 3584}
3585#endif
3207 3586
3587#if EV_CHECK_ENABLE
3208void 3588void
3209ev_check_start (EV_P_ ev_check *w) 3589ev_check_start (EV_P_ ev_check *w)
3210{ 3590{
3211 if (expect_false (ev_is_active (w))) 3591 if (expect_false (ev_is_active (w)))
3212 return; 3592 return;
… …
3238 3618
3239 ev_stop (EV_A_ (W)w); 3619 ev_stop (EV_A_ (W)w);
3240 3620
3241 EV_FREQUENT_CHECK; 3621 EV_FREQUENT_CHECK;
3242} 3622}
3623#endif
3243 3624
3244#if EV_EMBED_ENABLE 3625#if EV_EMBED_ENABLE
3245void noinline 3626void noinline
3246ev_embed_sweep (EV_P_ ev_embed *w) 3627ev_embed_sweep (EV_P_ ev_embed *w)
3247{ 3628{
3248 ev_loop (w->other, EVLOOP_NONBLOCK); 3629 ev_run (w->other, EVRUN_NOWAIT);
3249} 3630}
3250 3631
3251static void 3632static void
3252embed_io_cb (EV_P_ ev_io *io, int revents) 3633embed_io_cb (EV_P_ ev_io *io, int revents)
3253{ 3634{
3254 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3635 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3255 3636
3256 if (ev_cb (w)) 3637 if (ev_cb (w))
3257 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3638 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3258 else 3639 else
3259 ev_loop (w->other, EVLOOP_NONBLOCK); 3640 ev_run (w->other, EVRUN_NOWAIT);
3260} 3641}
3261 3642
3262static void 3643static void
3263embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3644embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3264{ 3645{
3265 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3646 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3266 3647
3267 { 3648 {
3268 struct ev_loop *loop = w->other; 3649 EV_P = w->other;
3269 3650
3270 while (fdchangecnt) 3651 while (fdchangecnt)
3271 { 3652 {
3272 fd_reify (EV_A); 3653 fd_reify (EV_A);
3273 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3654 ev_run (EV_A_ EVRUN_NOWAIT);
3274 } 3655 }
3275 } 3656 }
3276} 3657}
3277 3658
3278static void 3659static void
… …
3281 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3662 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3282 3663
3283 ev_embed_stop (EV_A_ w); 3664 ev_embed_stop (EV_A_ w);
3284 3665
3285 { 3666 {
3286 struct ev_loop *loop = w->other; 3667 EV_P = w->other;
3287 3668
3288 ev_loop_fork (EV_A); 3669 ev_loop_fork (EV_A);
3289 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3670 ev_run (EV_A_ EVRUN_NOWAIT);
3290 } 3671 }
3291 3672
3292 ev_embed_start (EV_A_ w); 3673 ev_embed_start (EV_A_ w);
3293} 3674}
3294 3675
… …
3305{ 3686{
3306 if (expect_false (ev_is_active (w))) 3687 if (expect_false (ev_is_active (w)))
3307 return; 3688 return;
3308 3689
3309 { 3690 {
3310 struct ev_loop *loop = w->other; 3691 EV_P = w->other;
3311 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3692 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3312 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3693 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3313 } 3694 }
3314 3695
3315 EV_FREQUENT_CHECK; 3696 EV_FREQUENT_CHECK;
… …
3342 3723
3343 ev_io_stop (EV_A_ &w->io); 3724 ev_io_stop (EV_A_ &w->io);
3344 ev_prepare_stop (EV_A_ &w->prepare); 3725 ev_prepare_stop (EV_A_ &w->prepare);
3345 ev_fork_stop (EV_A_ &w->fork); 3726 ev_fork_stop (EV_A_ &w->fork);
3346 3727
3728 ev_stop (EV_A_ (W)w);
3729
3347 EV_FREQUENT_CHECK; 3730 EV_FREQUENT_CHECK;
3348} 3731}
3349#endif 3732#endif
3350 3733
3351#if EV_FORK_ENABLE 3734#if EV_FORK_ENABLE
… …
3384 3767
3385 EV_FREQUENT_CHECK; 3768 EV_FREQUENT_CHECK;
3386} 3769}
3387#endif 3770#endif
3388 3771
3772#if EV_CLEANUP_ENABLE
3773void
3774ev_cleanup_start (EV_P_ ev_cleanup *w)
3775{
3776 if (expect_false (ev_is_active (w)))
3777 return;
3778
3779 EV_FREQUENT_CHECK;
3780
3781 ev_start (EV_A_ (W)w, ++cleanupcnt);
3782 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3783 cleanups [cleanupcnt - 1] = w;
3784
3785 /* cleanup watchers should never keep a refcount on the loop */
3786 ev_unref (EV_A);
3787 EV_FREQUENT_CHECK;
3788}
3789
3790void
3791ev_cleanup_stop (EV_P_ ev_cleanup *w)
3792{
3793 clear_pending (EV_A_ (W)w);
3794 if (expect_false (!ev_is_active (w)))
3795 return;
3796
3797 EV_FREQUENT_CHECK;
3798 ev_ref (EV_A);
3799
3800 {
3801 int active = ev_active (w);
3802
3803 cleanups [active - 1] = cleanups [--cleanupcnt];
3804 ev_active (cleanups [active - 1]) = active;
3805 }
3806
3807 ev_stop (EV_A_ (W)w);
3808
3809 EV_FREQUENT_CHECK;
3810}
3811#endif
3812
3389#if EV_ASYNC_ENABLE 3813#if EV_ASYNC_ENABLE
3390void 3814void
3391ev_async_start (EV_P_ ev_async *w) 3815ev_async_start (EV_P_ ev_async *w)
3392{ 3816{
3393 if (expect_false (ev_is_active (w))) 3817 if (expect_false (ev_is_active (w)))
3394 return; 3818 return;
3395 3819
3820 w->sent = 0;
3821
3396 evpipe_init (EV_A); 3822 evpipe_init (EV_A);
3397 3823
3398 EV_FREQUENT_CHECK; 3824 EV_FREQUENT_CHECK;
3399 3825
3400 ev_start (EV_A_ (W)w, ++asynccnt); 3826 ev_start (EV_A_ (W)w, ++asynccnt);
… …
3427 3853
3428void 3854void
3429ev_async_send (EV_P_ ev_async *w) 3855ev_async_send (EV_P_ ev_async *w)
3430{ 3856{
3431 w->sent = 1; 3857 w->sent = 1;
3432 evpipe_write (EV_A_ &gotasync); 3858 evpipe_write (EV_A_ &async_pending);
3433} 3859}
3434#endif 3860#endif
3435 3861
3436/*****************************************************************************/ 3862/*****************************************************************************/
3437 3863
… …
3477{ 3903{
3478 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3904 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3479 3905
3480 if (expect_false (!once)) 3906 if (expect_false (!once))
3481 { 3907 {
3482 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3908 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3483 return; 3909 return;
3484 } 3910 }
3485 3911
3486 once->cb = cb; 3912 once->cb = cb;
3487 once->arg = arg; 3913 once->arg = arg;
… …
3502} 3928}
3503 3929
3504/*****************************************************************************/ 3930/*****************************************************************************/
3505 3931
3506#if EV_WALK_ENABLE 3932#if EV_WALK_ENABLE
3507void 3933void ecb_cold
3508ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3934ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3509{ 3935{
3510 int i, j; 3936 int i, j;
3511 ev_watcher_list *wl, *wn; 3937 ev_watcher_list *wl, *wn;
3512 3938
… …
3574 if (types & EV_ASYNC) 4000 if (types & EV_ASYNC)
3575 for (i = asynccnt; i--; ) 4001 for (i = asynccnt; i--; )
3576 cb (EV_A_ EV_ASYNC, asyncs [i]); 4002 cb (EV_A_ EV_ASYNC, asyncs [i]);
3577#endif 4003#endif
3578 4004
4005#if EV_PREPARE_ENABLE
3579 if (types & EV_PREPARE) 4006 if (types & EV_PREPARE)
3580 for (i = preparecnt; i--; ) 4007 for (i = preparecnt; i--; )
3581#if EV_EMBED_ENABLE 4008# if EV_EMBED_ENABLE
3582 if (ev_cb (prepares [i]) != embed_prepare_cb) 4009 if (ev_cb (prepares [i]) != embed_prepare_cb)
3583#endif 4010# endif
3584 cb (EV_A_ EV_PREPARE, prepares [i]); 4011 cb (EV_A_ EV_PREPARE, prepares [i]);
4012#endif
3585 4013
4014#if EV_CHECK_ENABLE
3586 if (types & EV_CHECK) 4015 if (types & EV_CHECK)
3587 for (i = checkcnt; i--; ) 4016 for (i = checkcnt; i--; )
3588 cb (EV_A_ EV_CHECK, checks [i]); 4017 cb (EV_A_ EV_CHECK, checks [i]);
4018#endif
3589 4019
4020#if EV_SIGNAL_ENABLE
3590 if (types & EV_SIGNAL) 4021 if (types & EV_SIGNAL)
3591 for (i = 0; i < signalmax; ++i) 4022 for (i = 0; i < EV_NSIG - 1; ++i)
3592 for (wl = signals [i].head; wl; ) 4023 for (wl = signals [i].head; wl; )
3593 { 4024 {
3594 wn = wl->next; 4025 wn = wl->next;
3595 cb (EV_A_ EV_SIGNAL, wl); 4026 cb (EV_A_ EV_SIGNAL, wl);
3596 wl = wn; 4027 wl = wn;
3597 } 4028 }
4029#endif
3598 4030
4031#if EV_CHILD_ENABLE
3599 if (types & EV_CHILD) 4032 if (types & EV_CHILD)
3600 for (i = EV_PID_HASHSIZE; i--; ) 4033 for (i = (EV_PID_HASHSIZE); i--; )
3601 for (wl = childs [i]; wl; ) 4034 for (wl = childs [i]; wl; )
3602 { 4035 {
3603 wn = wl->next; 4036 wn = wl->next;
3604 cb (EV_A_ EV_CHILD, wl); 4037 cb (EV_A_ EV_CHILD, wl);
3605 wl = wn; 4038 wl = wn;
3606 } 4039 }
4040#endif
3607/* EV_STAT 0x00001000 /* stat data changed */ 4041/* EV_STAT 0x00001000 /* stat data changed */
3608/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4042/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3609} 4043}
3610#endif 4044#endif
3611 4045
3612#if EV_MULTIPLICITY 4046#if EV_MULTIPLICITY
3613 #include "ev_wrap.h" 4047 #include "ev_wrap.h"
3614#endif 4048#endif
3615 4049
3616#ifdef __cplusplus 4050EV_CPP(})
3617}
3618#endif
3619 4051

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