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Comparing libev/ev.c (file contents):
Revision 1.307 by root, Sun Jul 19 07:20:41 2009 UTC vs.
Revision 1.369 by root, Sun Jan 23 18:53:06 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 *
… …
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
… …
77# ifndef EV_USE_REALTIME 73# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 74# define EV_USE_REALTIME 0
79# endif 75# endif
80# endif 76# endif
81 77
78# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 79# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 80# define EV_USE_NANOSLEEP EV_FEATURE_OS
81# endif
85# else 82# else
83# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 84# define EV_USE_NANOSLEEP 0
85# endif
86
87# if HAVE_SELECT && HAVE_SYS_SELECT_H
88# ifndef EV_USE_SELECT
89# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 90# endif
91# else
92# undef EV_USE_SELECT
93# define EV_USE_SELECT 0
88# endif 94# endif
89 95
96# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 97# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 98# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 99# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 100# else
101# undef EV_USE_POLL
102# define EV_USE_POLL 0 102# define EV_USE_POLL 0
103# endif
104# endif 103# endif
105 104
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 106# ifndef EV_USE_EPOLL
109# else 107# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 108# endif
109# else
110# undef EV_USE_EPOLL
111# define EV_USE_EPOLL 0
112# endif 112# endif
113 113
114# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 115# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 117# endif
118# else
119# undef EV_USE_KQUEUE
120# define EV_USE_KQUEUE 0
120# endif 121# endif
121 122
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 123# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 124# ifndef EV_USE_PORT
125# else 125# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 126# endif
127# else
128# undef EV_USE_PORT
129# define EV_USE_PORT 0
128# endif 130# endif
129 131
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 132# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 133# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 135# endif
136# else
137# undef EV_USE_INOTIFY
138# define EV_USE_INOTIFY 0
136# endif 139# endif
137 140
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 141# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 142# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 143# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 144# endif
145# else
146# undef EV_USE_SIGNALFD
147# define EV_USE_SIGNALFD 0
144# endif 148# endif
145 149
150# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 151# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 152# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 153# endif
154# else
155# undef EV_USE_EVENTFD
156# define EV_USE_EVENTFD 0
152# endif 157# endif
153 158
154#endif 159#endif
155 160
156#include <math.h> 161#include <math.h>
157#include <stdlib.h> 162#include <stdlib.h>
163#include <string.h>
158#include <fcntl.h> 164#include <fcntl.h>
159#include <stddef.h> 165#include <stddef.h>
160 166
161#include <stdio.h> 167#include <stdio.h>
162 168
163#include <assert.h> 169#include <assert.h>
164#include <errno.h> 170#include <errno.h>
165#include <sys/types.h> 171#include <sys/types.h>
166#include <time.h> 172#include <time.h>
173#include <limits.h>
167 174
168#include <signal.h> 175#include <signal.h>
169 176
170#ifdef EV_H 177#ifdef EV_H
171# include EV_H 178# include EV_H
172#else 179#else
173# include "ev.h" 180# include "ev.h"
174#endif 181#endif
182
183EV_CPP(extern "C" {)
175 184
176#ifndef _WIN32 185#ifndef _WIN32
177# include <sys/time.h> 186# include <sys/time.h>
178# include <sys/wait.h> 187# include <sys/wait.h>
179# include <unistd.h> 188# include <unistd.h>
… …
182# define WIN32_LEAN_AND_MEAN 191# define WIN32_LEAN_AND_MEAN
183# include <windows.h> 192# include <windows.h>
184# ifndef EV_SELECT_IS_WINSOCKET 193# ifndef EV_SELECT_IS_WINSOCKET
185# define EV_SELECT_IS_WINSOCKET 1 194# define EV_SELECT_IS_WINSOCKET 1
186# endif 195# endif
196# undef EV_AVOID_STDIO
187#endif 197#endif
198
199/* OS X, in its infinite idiocy, actually HARDCODES
200 * a limit of 1024 into their select. Where people have brains,
201 * OS X engineers apparently have a vacuum. Or maybe they were
202 * ordered to have a vacuum, or they do anything for money.
203 * This might help. Or not.
204 */
205#define _DARWIN_UNLIMITED_SELECT 1
188 206
189/* this block tries to deduce configuration from header-defined symbols and defaults */ 207/* this block tries to deduce configuration from header-defined symbols and defaults */
190 208
191/* try to deduce the maximum number of signals on this platform */ 209/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG) 210#if defined (EV_NSIG)
… …
204#elif defined (MAXSIG) 222#elif defined (MAXSIG)
205# define EV_NSIG (MAXSIG+1) 223# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG) 224#elif defined (MAX_SIG)
207# define EV_NSIG (MAX_SIG+1) 225# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE) 226#elif defined (SIGARRAYSIZE)
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig) 228#elif defined (_sys_nsig)
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else 230#else
213# error "unable to find value for NSIG, please report" 231# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */ 232/* to make it compile regardless, just remove the above line, */
233/* but consider reporting it, too! :) */
215# define EV_NSIG 65 234# define EV_NSIG 65
216#endif 235#endif
217 236
218#ifndef EV_USE_CLOCK_SYSCALL 237#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2 238# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1 239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221# else 240# else
222# define EV_USE_CLOCK_SYSCALL 0 241# define EV_USE_CLOCK_SYSCALL 0
223# endif 242# endif
224#endif 243#endif
225 244
226#ifndef EV_USE_MONOTONIC 245#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1 247# define EV_USE_MONOTONIC EV_FEATURE_OS
229# else 248# else
230# define EV_USE_MONOTONIC 0 249# define EV_USE_MONOTONIC 0
231# endif 250# endif
232#endif 251#endif
233 252
… …
235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 254# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236#endif 255#endif
237 256
238#ifndef EV_USE_NANOSLEEP 257#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L 258# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1 259# define EV_USE_NANOSLEEP EV_FEATURE_OS
241# else 260# else
242# define EV_USE_NANOSLEEP 0 261# define EV_USE_NANOSLEEP 0
243# endif 262# endif
244#endif 263#endif
245 264
246#ifndef EV_USE_SELECT 265#ifndef EV_USE_SELECT
247# define EV_USE_SELECT 1 266# define EV_USE_SELECT EV_FEATURE_BACKENDS
248#endif 267#endif
249 268
250#ifndef EV_USE_POLL 269#ifndef EV_USE_POLL
251# ifdef _WIN32 270# ifdef _WIN32
252# define EV_USE_POLL 0 271# define EV_USE_POLL 0
253# else 272# else
254# define EV_USE_POLL 1 273# define EV_USE_POLL EV_FEATURE_BACKENDS
255# endif 274# endif
256#endif 275#endif
257 276
258#ifndef EV_USE_EPOLL 277#ifndef EV_USE_EPOLL
259# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260# define EV_USE_EPOLL 1 279# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261# else 280# else
262# define EV_USE_EPOLL 0 281# define EV_USE_EPOLL 0
263# endif 282# endif
264#endif 283#endif
265 284
… …
271# define EV_USE_PORT 0 290# define EV_USE_PORT 0
272#endif 291#endif
273 292
274#ifndef EV_USE_INOTIFY 293#ifndef EV_USE_INOTIFY
275# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276# define EV_USE_INOTIFY 1 295# define EV_USE_INOTIFY EV_FEATURE_OS
277# else 296# else
278# define EV_USE_INOTIFY 0 297# define EV_USE_INOTIFY 0
279# endif 298# endif
280#endif 299#endif
281 300
282#ifndef EV_PID_HASHSIZE 301#ifndef EV_PID_HASHSIZE
283# if EV_MINIMAL 302# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
284# define EV_PID_HASHSIZE 1
285# else
286# define EV_PID_HASHSIZE 16
287# endif
288#endif 303#endif
289 304
290#ifndef EV_INOTIFY_HASHSIZE 305#ifndef EV_INOTIFY_HASHSIZE
291# if EV_MINIMAL 306# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
292# define EV_INOTIFY_HASHSIZE 1
293# else
294# define EV_INOTIFY_HASHSIZE 16
295# endif
296#endif 307#endif
297 308
298#ifndef EV_USE_EVENTFD 309#ifndef EV_USE_EVENTFD
299# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300# define EV_USE_EVENTFD 1 311# define EV_USE_EVENTFD EV_FEATURE_OS
301# else 312# else
302# define EV_USE_EVENTFD 0 313# define EV_USE_EVENTFD 0
303# endif 314# endif
304#endif 315#endif
305 316
306#ifndef EV_USE_SIGNALFD 317#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) 318# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308# define EV_USE_SIGNALFD 1 319# define EV_USE_SIGNALFD EV_FEATURE_OS
309# else 320# else
310# define EV_USE_SIGNALFD 0 321# define EV_USE_SIGNALFD 0
311# endif 322# endif
312#endif 323#endif
313 324
… …
316# define EV_USE_4HEAP 1 327# define EV_USE_4HEAP 1
317# define EV_HEAP_CACHE_AT 1 328# define EV_HEAP_CACHE_AT 1
318#endif 329#endif
319 330
320#ifndef EV_VERIFY 331#ifndef EV_VERIFY
321# define EV_VERIFY !EV_MINIMAL 332# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322#endif 333#endif
323 334
324#ifndef EV_USE_4HEAP 335#ifndef EV_USE_4HEAP
325# define EV_USE_4HEAP !EV_MINIMAL 336# define EV_USE_4HEAP EV_FEATURE_DATA
326#endif 337#endif
327 338
328#ifndef EV_HEAP_CACHE_AT 339#ifndef EV_HEAP_CACHE_AT
329# define EV_HEAP_CACHE_AT !EV_MINIMAL 340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330#endif 341#endif
331 342
332/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 343/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333/* which makes programs even slower. might work on other unices, too. */ 344/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL 345#if EV_USE_CLOCK_SYSCALL
… …
343# endif 354# endif
344#endif 355#endif
345 356
346/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 357/* this block fixes any misconfiguration where we know we run into trouble otherwise */
347 358
359#ifdef _AIX
360/* AIX has a completely broken poll.h header */
361# undef EV_USE_POLL
362# define EV_USE_POLL 0
363#endif
364
348#ifndef CLOCK_MONOTONIC 365#ifndef CLOCK_MONOTONIC
349# undef EV_USE_MONOTONIC 366# undef EV_USE_MONOTONIC
350# define EV_USE_MONOTONIC 0 367# define EV_USE_MONOTONIC 0
351#endif 368#endif
352 369
… …
365# include <sys/select.h> 382# include <sys/select.h>
366# endif 383# endif
367#endif 384#endif
368 385
369#if EV_USE_INOTIFY 386#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h> 387# include <sys/statfs.h>
372# include <sys/inotify.h> 388# include <sys/inotify.h>
373/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 389/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
374# ifndef IN_DONT_FOLLOW 390# ifndef IN_DONT_FOLLOW
375# undef EV_USE_INOTIFY 391# undef EV_USE_INOTIFY
… …
386# include <stdint.h> 402# include <stdint.h>
387# ifndef EFD_NONBLOCK 403# ifndef EFD_NONBLOCK
388# define EFD_NONBLOCK O_NONBLOCK 404# define EFD_NONBLOCK O_NONBLOCK
389# endif 405# endif
390# ifndef EFD_CLOEXEC 406# ifndef EFD_CLOEXEC
407# ifdef O_CLOEXEC
391# define EFD_CLOEXEC O_CLOEXEC 408# define EFD_CLOEXEC O_CLOEXEC
409# else
410# define EFD_CLOEXEC 02000000
411# endif
392# endif 412# endif
393# ifdef __cplusplus 413EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
394extern "C" { 414#endif
415
416#if EV_USE_SIGNALFD
417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
418# include <stdint.h>
419# ifndef SFD_NONBLOCK
420# define SFD_NONBLOCK O_NONBLOCK
395# endif 421# endif
396int eventfd (unsigned int initval, int flags); 422# ifndef SFD_CLOEXEC
397# ifdef __cplusplus 423# ifdef O_CLOEXEC
398} 424# define SFD_CLOEXEC O_CLOEXEC
425# else
426# define SFD_CLOEXEC 02000000
427# endif
399# endif 428# endif
400#endif 429EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
401 430
402#if EV_USE_SIGNALFD 431struct signalfd_siginfo
403# include <sys/signalfd.h> 432{
433 uint32_t ssi_signo;
434 char pad[128 - sizeof (uint32_t)];
435};
404#endif 436#endif
405 437
406/**/ 438/**/
407 439
408#if EV_VERIFY >= 3 440#if EV_VERIFY >= 3
409# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 441# define EV_FREQUENT_CHECK ev_verify (EV_A)
410#else 442#else
411# define EV_FREQUENT_CHECK do { } while (0) 443# define EV_FREQUENT_CHECK do { } while (0)
412#endif 444#endif
413 445
414/* 446/*
… …
421 */ 453 */
422#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 454#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
423 455
424#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 456#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
425#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 457#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
426/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ 458
459#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
460#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
427 461
428#if __GNUC__ >= 4 462#if __GNUC__ >= 4
429# define expect(expr,value) __builtin_expect ((expr),(value)) 463# define expect(expr,value) __builtin_expect ((expr),(value))
430# define noinline __attribute__ ((noinline)) 464# define noinline __attribute__ ((noinline))
431#else 465#else
… …
438 472
439#define expect_false(expr) expect ((expr) != 0, 0) 473#define expect_false(expr) expect ((expr) != 0, 0)
440#define expect_true(expr) expect ((expr) != 0, 1) 474#define expect_true(expr) expect ((expr) != 0, 1)
441#define inline_size static inline 475#define inline_size static inline
442 476
443#if EV_MINIMAL 477#if EV_FEATURE_CODE
478# define inline_speed static inline
479#else
444# define inline_speed static noinline 480# define inline_speed static noinline
445#else
446# define inline_speed static inline
447#endif 481#endif
448 482
449#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 483#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
450 484
451#if EV_MINPRI == EV_MAXPRI 485#if EV_MINPRI == EV_MAXPRI
… …
464#define ev_active(w) ((W)(w))->active 498#define ev_active(w) ((W)(w))->active
465#define ev_at(w) ((WT)(w))->at 499#define ev_at(w) ((WT)(w))->at
466 500
467#if EV_USE_REALTIME 501#if EV_USE_REALTIME
468/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 502/* sig_atomic_t is used to avoid per-thread variables or locking but still */
469/* giving it a reasonably high chance of working on typical architetcures */ 503/* giving it a reasonably high chance of working on typical architectures */
470static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 504static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
471#endif 505#endif
472 506
473#if EV_USE_MONOTONIC 507#if EV_USE_MONOTONIC
474static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 508static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
475#endif 509#endif
476 510
511#ifndef EV_FD_TO_WIN32_HANDLE
512# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
513#endif
514#ifndef EV_WIN32_HANDLE_TO_FD
515# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
516#endif
517#ifndef EV_WIN32_CLOSE_FD
518# define EV_WIN32_CLOSE_FD(fd) close (fd)
519#endif
520
477#ifdef _WIN32 521#ifdef _WIN32
478# include "ev_win32.c" 522# include "ev_win32.c"
479#endif 523#endif
480 524
481/*****************************************************************************/ 525/*****************************************************************************/
526
527#ifdef __linux
528# include <sys/utsname.h>
529#endif
530
531static unsigned int noinline
532ev_linux_version (void)
533{
534#ifdef __linux
535 unsigned int v = 0;
536 struct utsname buf;
537 int i;
538 char *p = buf.release;
539
540 if (uname (&buf))
541 return 0;
542
543 for (i = 3+1; --i; )
544 {
545 unsigned int c = 0;
546
547 for (;;)
548 {
549 if (*p >= '0' && *p <= '9')
550 c = c * 10 + *p++ - '0';
551 else
552 {
553 p += *p == '.';
554 break;
555 }
556 }
557
558 v = (v << 8) | c;
559 }
560
561 return v;
562#else
563 return 0;
564#endif
565}
566
567/*****************************************************************************/
568
569#if EV_AVOID_STDIO
570static void noinline
571ev_printerr (const char *msg)
572{
573 write (STDERR_FILENO, msg, strlen (msg));
574}
575#endif
482 576
483static void (*syserr_cb)(const char *msg); 577static void (*syserr_cb)(const char *msg);
484 578
485void 579void
486ev_set_syserr_cb (void (*cb)(const char *msg)) 580ev_set_syserr_cb (void (*cb)(const char *msg))
… …
496 590
497 if (syserr_cb) 591 if (syserr_cb)
498 syserr_cb (msg); 592 syserr_cb (msg);
499 else 593 else
500 { 594 {
595#if EV_AVOID_STDIO
596 ev_printerr (msg);
597 ev_printerr (": ");
598 ev_printerr (strerror (errno));
599 ev_printerr ("\n");
600#else
501 perror (msg); 601 perror (msg);
602#endif
502 abort (); 603 abort ();
503 } 604 }
504} 605}
505 606
506static void * 607static void *
507ev_realloc_emul (void *ptr, long size) 608ev_realloc_emul (void *ptr, long size)
508{ 609{
610#if __GLIBC__
611 return realloc (ptr, size);
612#else
509 /* some systems, notably openbsd and darwin, fail to properly 613 /* some systems, notably openbsd and darwin, fail to properly
510 * implement realloc (x, 0) (as required by both ansi c-98 and 614 * implement realloc (x, 0) (as required by both ansi c-89 and
511 * the single unix specification, so work around them here. 615 * the single unix specification, so work around them here.
512 */ 616 */
513 617
514 if (size) 618 if (size)
515 return realloc (ptr, size); 619 return realloc (ptr, size);
516 620
517 free (ptr); 621 free (ptr);
518 return 0; 622 return 0;
623#endif
519} 624}
520 625
521static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 626static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
522 627
523void 628void
… …
531{ 636{
532 ptr = alloc (ptr, size); 637 ptr = alloc (ptr, size);
533 638
534 if (!ptr && size) 639 if (!ptr && size)
535 { 640 {
641#if EV_AVOID_STDIO
642 ev_printerr ("(libev) memory allocation failed, aborting.\n");
643#else
536 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 644 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
645#endif
537 abort (); 646 abort ();
538 } 647 }
539 648
540 return ptr; 649 return ptr;
541} 650}
… …
557 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 666 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
558 unsigned char unused; 667 unsigned char unused;
559#if EV_USE_EPOLL 668#if EV_USE_EPOLL
560 unsigned int egen; /* generation counter to counter epoll bugs */ 669 unsigned int egen; /* generation counter to counter epoll bugs */
561#endif 670#endif
562#if EV_SELECT_IS_WINSOCKET 671#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
563 SOCKET handle; 672 SOCKET handle;
673#endif
674#if EV_USE_IOCP
675 OVERLAPPED or, ow;
564#endif 676#endif
565} ANFD; 677} ANFD;
566 678
567/* stores the pending event set for a given watcher */ 679/* stores the pending event set for a given watcher */
568typedef struct 680typedef struct
… …
623 735
624 static int ev_default_loop_ptr; 736 static int ev_default_loop_ptr;
625 737
626#endif 738#endif
627 739
628#if EV_MINIMAL < 2 740#if EV_FEATURE_API
629# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 741# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
630# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 742# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
631# define EV_INVOKE_PENDING invoke_cb (EV_A) 743# define EV_INVOKE_PENDING invoke_cb (EV_A)
632#else 744#else
633# define EV_RELEASE_CB (void)0 745# define EV_RELEASE_CB (void)0
634# define EV_ACQUIRE_CB (void)0 746# define EV_ACQUIRE_CB (void)0
635# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 747# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
636#endif 748#endif
637 749
638#define EVUNLOOP_RECURSE 0x80 750#define EVBREAK_RECURSE 0x80
639 751
640/*****************************************************************************/ 752/*****************************************************************************/
641 753
642#ifndef EV_HAVE_EV_TIME 754#ifndef EV_HAVE_EV_TIME
643ev_tstamp 755ev_tstamp
… …
687 if (delay > 0.) 799 if (delay > 0.)
688 { 800 {
689#if EV_USE_NANOSLEEP 801#if EV_USE_NANOSLEEP
690 struct timespec ts; 802 struct timespec ts;
691 803
692 ts.tv_sec = (time_t)delay; 804 EV_TS_SET (ts, delay);
693 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
694
695 nanosleep (&ts, 0); 805 nanosleep (&ts, 0);
696#elif defined(_WIN32) 806#elif defined(_WIN32)
697 Sleep ((unsigned long)(delay * 1e3)); 807 Sleep ((unsigned long)(delay * 1e3));
698#else 808#else
699 struct timeval tv; 809 struct timeval tv;
700 810
701 tv.tv_sec = (time_t)delay;
702 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
703
704 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 811 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
705 /* something not guaranteed by newer posix versions, but guaranteed */ 812 /* something not guaranteed by newer posix versions, but guaranteed */
706 /* by older ones */ 813 /* by older ones */
814 EV_TV_SET (tv, delay);
707 select (0, 0, 0, 0, &tv); 815 select (0, 0, 0, 0, &tv);
708#endif 816#endif
709 } 817 }
710} 818}
711 819
820inline_speed int
821ev_timeout_to_ms (ev_tstamp timeout)
822{
823 int ms = timeout * 1000. + .999999;
824
825 return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
826}
827
712/*****************************************************************************/ 828/*****************************************************************************/
713 829
714#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 830#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
715 831
716/* find a suitable new size for the given array, */ 832/* find a suitable new size for the given array, */
717/* hopefully by rounding to a ncie-to-malloc size */ 833/* hopefully by rounding to a nice-to-malloc size */
718inline_size int 834inline_size int
719array_nextsize (int elem, int cur, int cnt) 835array_nextsize (int elem, int cur, int cnt)
720{ 836{
721 int ncur = cur + 1; 837 int ncur = cur + 1;
722 838
… …
818} 934}
819 935
820/*****************************************************************************/ 936/*****************************************************************************/
821 937
822inline_speed void 938inline_speed void
823fd_event_nc (EV_P_ int fd, int revents) 939fd_event_nocheck (EV_P_ int fd, int revents)
824{ 940{
825 ANFD *anfd = anfds + fd; 941 ANFD *anfd = anfds + fd;
826 ev_io *w; 942 ev_io *w;
827 943
828 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 944 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
840fd_event (EV_P_ int fd, int revents) 956fd_event (EV_P_ int fd, int revents)
841{ 957{
842 ANFD *anfd = anfds + fd; 958 ANFD *anfd = anfds + fd;
843 959
844 if (expect_true (!anfd->reify)) 960 if (expect_true (!anfd->reify))
845 fd_event_nc (EV_A_ fd, revents); 961 fd_event_nocheck (EV_A_ fd, revents);
846} 962}
847 963
848void 964void
849ev_feed_fd_event (EV_P_ int fd, int revents) 965ev_feed_fd_event (EV_P_ int fd, int revents)
850{ 966{
851 if (fd >= 0 && fd < anfdmax) 967 if (fd >= 0 && fd < anfdmax)
852 fd_event_nc (EV_A_ fd, revents); 968 fd_event_nocheck (EV_A_ fd, revents);
853} 969}
854 970
855/* make sure the external fd watch events are in-sync */ 971/* make sure the external fd watch events are in-sync */
856/* with the kernel/libev internal state */ 972/* with the kernel/libev internal state */
857inline_size void 973inline_size void
… …
863 { 979 {
864 int fd = fdchanges [i]; 980 int fd = fdchanges [i];
865 ANFD *anfd = anfds + fd; 981 ANFD *anfd = anfds + fd;
866 ev_io *w; 982 ev_io *w;
867 983
868 unsigned char events = 0; 984 unsigned char o_events = anfd->events;
985 unsigned char o_reify = anfd->reify;
869 986
870 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 987 anfd->reify = 0;
871 events |= (unsigned char)w->events;
872 988
873#if EV_SELECT_IS_WINSOCKET 989#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
874 if (events) 990 if (o_reify & EV__IOFDSET)
875 { 991 {
876 unsigned long arg; 992 unsigned long arg;
877 #ifdef EV_FD_TO_WIN32_HANDLE
878 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 993 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
879 #else
880 anfd->handle = _get_osfhandle (fd);
881 #endif
882 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 994 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
995 printf ("oi %d %x\n", fd, anfd->handle);//D
883 } 996 }
884#endif 997#endif
885 998
999 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
886 { 1000 {
887 unsigned char o_events = anfd->events;
888 unsigned char o_reify = anfd->reify;
889
890 anfd->reify = 0;
891 anfd->events = events; 1001 anfd->events = 0;
892 1002
893 if (o_events != events || o_reify & EV__IOFDSET) 1003 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1004 anfd->events |= (unsigned char)w->events;
1005
1006 if (o_events != anfd->events)
1007 o_reify = EV__IOFDSET; /* actually |= */
1008 }
1009
1010 if (o_reify & EV__IOFDSET)
894 backend_modify (EV_A_ fd, o_events, events); 1011 backend_modify (EV_A_ fd, o_events, anfd->events);
895 }
896 } 1012 }
897 1013
898 fdchangecnt = 0; 1014 fdchangecnt = 0;
899} 1015}
900 1016
… …
924 ev_io_stop (EV_A_ w); 1040 ev_io_stop (EV_A_ w);
925 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1041 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
926 } 1042 }
927} 1043}
928 1044
929/* check whether the given fd is atcually valid, for error recovery */ 1045/* check whether the given fd is actually valid, for error recovery */
930inline_size int 1046inline_size int
931fd_valid (int fd) 1047fd_valid (int fd)
932{ 1048{
933#ifdef _WIN32 1049#ifdef _WIN32
934 return _get_osfhandle (fd) != -1; 1050 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
935#else 1051#else
936 return fcntl (fd, F_GETFD) != -1; 1052 return fcntl (fd, F_GETFD) != -1;
937#endif 1053#endif
938} 1054}
939 1055
… …
976 anfds [fd].emask = 0; 1092 anfds [fd].emask = 0;
977 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1093 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
978 } 1094 }
979} 1095}
980 1096
1097/* used to prepare libev internal fd's */
1098/* this is not fork-safe */
1099inline_speed void
1100fd_intern (int fd)
1101{
1102#ifdef _WIN32
1103 unsigned long arg = 1;
1104 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1105#else
1106 fcntl (fd, F_SETFD, FD_CLOEXEC);
1107 fcntl (fd, F_SETFL, O_NONBLOCK);
1108#endif
1109}
1110
981/*****************************************************************************/ 1111/*****************************************************************************/
982 1112
983/* 1113/*
984 * the heap functions want a real array index. array index 0 uis guaranteed to not 1114 * the heap functions want a real array index. array index 0 is guaranteed to not
985 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1115 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
986 * the branching factor of the d-tree. 1116 * the branching factor of the d-tree.
987 */ 1117 */
988 1118
989/* 1119/*
… …
1057 1187
1058 for (;;) 1188 for (;;)
1059 { 1189 {
1060 int c = k << 1; 1190 int c = k << 1;
1061 1191
1062 if (c > N + HEAP0 - 1) 1192 if (c >= N + HEAP0)
1063 break; 1193 break;
1064 1194
1065 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1195 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1066 ? 1 : 0; 1196 ? 1 : 0;
1067 1197
… …
1103 1233
1104/* move an element suitably so it is in a correct place */ 1234/* move an element suitably so it is in a correct place */
1105inline_size void 1235inline_size void
1106adjustheap (ANHE *heap, int N, int k) 1236adjustheap (ANHE *heap, int N, int k)
1107{ 1237{
1108 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1238 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1109 upheap (heap, k); 1239 upheap (heap, k);
1110 else 1240 else
1111 downheap (heap, N, k); 1241 downheap (heap, N, k);
1112} 1242}
1113 1243
… …
1137 1267
1138static ANSIG signals [EV_NSIG - 1]; 1268static ANSIG signals [EV_NSIG - 1];
1139 1269
1140/*****************************************************************************/ 1270/*****************************************************************************/
1141 1271
1142/* used to prepare libev internal fd's */ 1272#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1143/* this is not fork-safe */
1144inline_speed void
1145fd_intern (int fd)
1146{
1147#ifdef _WIN32
1148 unsigned long arg = 1;
1149 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1150#else
1151 fcntl (fd, F_SETFD, FD_CLOEXEC);
1152 fcntl (fd, F_SETFL, O_NONBLOCK);
1153#endif
1154}
1155 1273
1156static void noinline 1274static void noinline
1157evpipe_init (EV_P) 1275evpipe_init (EV_P)
1158{ 1276{
1159 if (!ev_is_active (&pipe_w)) 1277 if (!ev_is_active (&pipe_w))
1160 { 1278 {
1161#if EV_USE_EVENTFD 1279# if EV_USE_EVENTFD
1162 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1280 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1163 if (evfd < 0 && errno == EINVAL) 1281 if (evfd < 0 && errno == EINVAL)
1164 evfd = eventfd (0, 0); 1282 evfd = eventfd (0, 0);
1165 1283
1166 if (evfd >= 0) 1284 if (evfd >= 0)
… …
1168 evpipe [0] = -1; 1286 evpipe [0] = -1;
1169 fd_intern (evfd); /* doing it twice doesn't hurt */ 1287 fd_intern (evfd); /* doing it twice doesn't hurt */
1170 ev_io_set (&pipe_w, evfd, EV_READ); 1288 ev_io_set (&pipe_w, evfd, EV_READ);
1171 } 1289 }
1172 else 1290 else
1173#endif 1291# endif
1174 { 1292 {
1175 while (pipe (evpipe)) 1293 while (pipe (evpipe))
1176 ev_syserr ("(libev) error creating signal/async pipe"); 1294 ev_syserr ("(libev) error creating signal/async pipe");
1177 1295
1178 fd_intern (evpipe [0]); 1296 fd_intern (evpipe [0]);
… …
1189evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1307evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1190{ 1308{
1191 if (!*flag) 1309 if (!*flag)
1192 { 1310 {
1193 int old_errno = errno; /* save errno because write might clobber it */ 1311 int old_errno = errno; /* save errno because write might clobber it */
1312 char dummy;
1194 1313
1195 *flag = 1; 1314 *flag = 1;
1196 1315
1197#if EV_USE_EVENTFD 1316#if EV_USE_EVENTFD
1198 if (evfd >= 0) 1317 if (evfd >= 0)
… …
1200 uint64_t counter = 1; 1319 uint64_t counter = 1;
1201 write (evfd, &counter, sizeof (uint64_t)); 1320 write (evfd, &counter, sizeof (uint64_t));
1202 } 1321 }
1203 else 1322 else
1204#endif 1323#endif
1324 /* win32 people keep sending patches that change this write() to send() */
1325 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1326 /* so when you think this write should be a send instead, please find out */
1327 /* where your send() is from - it's definitely not the microsoft send, and */
1328 /* tell me. thank you. */
1205 write (evpipe [1], &old_errno, 1); 1329 write (evpipe [1], &dummy, 1);
1206 1330
1207 errno = old_errno; 1331 errno = old_errno;
1208 } 1332 }
1209} 1333}
1210 1334
… …
1223 } 1347 }
1224 else 1348 else
1225#endif 1349#endif
1226 { 1350 {
1227 char dummy; 1351 char dummy;
1352 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1228 read (evpipe [0], &dummy, 1); 1353 read (evpipe [0], &dummy, 1);
1229 } 1354 }
1230 1355
1356#if EV_SIGNAL_ENABLE
1231 if (sig_pending) 1357 if (sig_pending)
1232 { 1358 {
1233 sig_pending = 0; 1359 sig_pending = 0;
1234 1360
1235 for (i = EV_NSIG - 1; i--; ) 1361 for (i = EV_NSIG - 1; i--; )
1236 if (expect_false (signals [i].pending)) 1362 if (expect_false (signals [i].pending))
1237 ev_feed_signal_event (EV_A_ i + 1); 1363 ev_feed_signal_event (EV_A_ i + 1);
1238 } 1364 }
1365#endif
1239 1366
1240#if EV_ASYNC_ENABLE 1367#if EV_ASYNC_ENABLE
1241 if (async_pending) 1368 if (async_pending)
1242 { 1369 {
1243 async_pending = 0; 1370 async_pending = 0;
… …
1252#endif 1379#endif
1253} 1380}
1254 1381
1255/*****************************************************************************/ 1382/*****************************************************************************/
1256 1383
1384void
1385ev_feed_signal (int signum)
1386{
1387#if EV_MULTIPLICITY
1388 EV_P = signals [signum - 1].loop;
1389
1390 if (!EV_A)
1391 return;
1392#endif
1393
1394 signals [signum - 1].pending = 1;
1395 evpipe_write (EV_A_ &sig_pending);
1396}
1397
1257static void 1398static void
1258ev_sighandler (int signum) 1399ev_sighandler (int signum)
1259{ 1400{
1260#if EV_MULTIPLICITY
1261 EV_P = signals [signum - 1].loop;
1262#endif
1263
1264#if _WIN32 1401#ifdef _WIN32
1265 signal (signum, ev_sighandler); 1402 signal (signum, ev_sighandler);
1266#endif 1403#endif
1267 1404
1268 signals [signum - 1].pending = 1; 1405 ev_feed_signal (signum);
1269 evpipe_write (EV_A_ &sig_pending);
1270} 1406}
1271 1407
1272void noinline 1408void noinline
1273ev_feed_signal_event (EV_P_ int signum) 1409ev_feed_signal_event (EV_P_ int signum)
1274{ 1410{
… …
1311 break; 1447 break;
1312 } 1448 }
1313} 1449}
1314#endif 1450#endif
1315 1451
1452#endif
1453
1316/*****************************************************************************/ 1454/*****************************************************************************/
1317 1455
1456#if EV_CHILD_ENABLE
1318static WL childs [EV_PID_HASHSIZE]; 1457static WL childs [EV_PID_HASHSIZE];
1319
1320#ifndef _WIN32
1321 1458
1322static ev_signal childev; 1459static ev_signal childev;
1323 1460
1324#ifndef WIFCONTINUED 1461#ifndef WIFCONTINUED
1325# define WIFCONTINUED(status) 0 1462# define WIFCONTINUED(status) 0
… …
1330child_reap (EV_P_ int chain, int pid, int status) 1467child_reap (EV_P_ int chain, int pid, int status)
1331{ 1468{
1332 ev_child *w; 1469 ev_child *w;
1333 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1470 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1334 1471
1335 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1472 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1336 { 1473 {
1337 if ((w->pid == pid || !w->pid) 1474 if ((w->pid == pid || !w->pid)
1338 && (!traced || (w->flags & 1))) 1475 && (!traced || (w->flags & 1)))
1339 { 1476 {
1340 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1477 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1365 /* make sure we are called again until all children have been reaped */ 1502 /* make sure we are called again until all children have been reaped */
1366 /* we need to do it this way so that the callback gets called before we continue */ 1503 /* we need to do it this way so that the callback gets called before we continue */
1367 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1504 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1368 1505
1369 child_reap (EV_A_ pid, pid, status); 1506 child_reap (EV_A_ pid, pid, status);
1370 if (EV_PID_HASHSIZE > 1) 1507 if ((EV_PID_HASHSIZE) > 1)
1371 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1508 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1372} 1509}
1373 1510
1374#endif 1511#endif
1375 1512
1376/*****************************************************************************/ 1513/*****************************************************************************/
1377 1514
1515#if EV_USE_IOCP
1516# include "ev_iocp.c"
1517#endif
1378#if EV_USE_PORT 1518#if EV_USE_PORT
1379# include "ev_port.c" 1519# include "ev_port.c"
1380#endif 1520#endif
1381#if EV_USE_KQUEUE 1521#if EV_USE_KQUEUE
1382# include "ev_kqueue.c" 1522# include "ev_kqueue.c"
… …
1442#ifdef __APPLE__ 1582#ifdef __APPLE__
1443 /* only select works correctly on that "unix-certified" platform */ 1583 /* only select works correctly on that "unix-certified" platform */
1444 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1584 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1445 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1585 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1446#endif 1586#endif
1587#ifdef __FreeBSD__
1588 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1589#endif
1447 1590
1448 return flags; 1591 return flags;
1449} 1592}
1450 1593
1451unsigned int 1594unsigned int
1452ev_embeddable_backends (void) 1595ev_embeddable_backends (void)
1453{ 1596{
1454 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1597 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1455 1598
1456 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1599 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1457 /* please fix it and tell me how to detect the fix */ 1600 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1458 flags &= ~EVBACKEND_EPOLL; 1601 flags &= ~EVBACKEND_EPOLL;
1459 1602
1460 return flags; 1603 return flags;
1461} 1604}
1462 1605
1463unsigned int 1606unsigned int
1464ev_backend (EV_P) 1607ev_backend (EV_P)
1465{ 1608{
1466 return backend; 1609 return backend;
1467} 1610}
1468 1611
1469#if EV_MINIMAL < 2 1612#if EV_FEATURE_API
1470unsigned int 1613unsigned int
1471ev_loop_count (EV_P) 1614ev_iteration (EV_P)
1472{ 1615{
1473 return loop_count; 1616 return loop_count;
1474} 1617}
1475 1618
1476unsigned int 1619unsigned int
1477ev_loop_depth (EV_P) 1620ev_depth (EV_P)
1478{ 1621{
1479 return loop_depth; 1622 return loop_depth;
1480} 1623}
1481 1624
1482void 1625void
… …
1519static void noinline 1662static void noinline
1520loop_init (EV_P_ unsigned int flags) 1663loop_init (EV_P_ unsigned int flags)
1521{ 1664{
1522 if (!backend) 1665 if (!backend)
1523 { 1666 {
1667 origflags = flags;
1668
1524#if EV_USE_REALTIME 1669#if EV_USE_REALTIME
1525 if (!have_realtime) 1670 if (!have_realtime)
1526 { 1671 {
1527 struct timespec ts; 1672 struct timespec ts;
1528 1673
… …
1554 1699
1555 ev_rt_now = ev_time (); 1700 ev_rt_now = ev_time ();
1556 mn_now = get_clock (); 1701 mn_now = get_clock ();
1557 now_floor = mn_now; 1702 now_floor = mn_now;
1558 rtmn_diff = ev_rt_now - mn_now; 1703 rtmn_diff = ev_rt_now - mn_now;
1559#if EV_MINIMAL < 2 1704#if EV_FEATURE_API
1560 invoke_cb = ev_invoke_pending; 1705 invoke_cb = ev_invoke_pending;
1561#endif 1706#endif
1562 1707
1563 io_blocktime = 0.; 1708 io_blocktime = 0.;
1564 timeout_blocktime = 0.; 1709 timeout_blocktime = 0.;
… …
1570#endif 1715#endif
1571#if EV_USE_INOTIFY 1716#if EV_USE_INOTIFY
1572 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1717 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1573#endif 1718#endif
1574#if EV_USE_SIGNALFD 1719#if EV_USE_SIGNALFD
1575 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; 1720 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1576#endif 1721#endif
1577 1722
1578 if (!(flags & 0x0000ffffU)) 1723 if (!(flags & EVBACKEND_MASK))
1579 flags |= ev_recommended_backends (); 1724 flags |= ev_recommended_backends ();
1580 1725
1726#if EV_USE_IOCP
1727 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1728#endif
1581#if EV_USE_PORT 1729#if EV_USE_PORT
1582 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1730 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1583#endif 1731#endif
1584#if EV_USE_KQUEUE 1732#if EV_USE_KQUEUE
1585 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1733 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1594 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1742 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1595#endif 1743#endif
1596 1744
1597 ev_prepare_init (&pending_w, pendingcb); 1745 ev_prepare_init (&pending_w, pendingcb);
1598 1746
1747#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1599 ev_init (&pipe_w, pipecb); 1748 ev_init (&pipe_w, pipecb);
1600 ev_set_priority (&pipe_w, EV_MAXPRI); 1749 ev_set_priority (&pipe_w, EV_MAXPRI);
1750#endif
1601 } 1751 }
1602} 1752}
1603 1753
1604/* free up a loop structure */ 1754/* free up a loop structure */
1605static void noinline 1755void
1606loop_destroy (EV_P) 1756ev_loop_destroy (EV_P)
1607{ 1757{
1608 int i; 1758 int i;
1759
1760#if EV_MULTIPLICITY
1761 /* mimic free (0) */
1762 if (!EV_A)
1763 return;
1764#endif
1765
1766#if EV_CLEANUP_ENABLE
1767 /* queue cleanup watchers (and execute them) */
1768 if (expect_false (cleanupcnt))
1769 {
1770 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1771 EV_INVOKE_PENDING;
1772 }
1773#endif
1774
1775#if EV_CHILD_ENABLE
1776 if (ev_is_active (&childev))
1777 {
1778 ev_ref (EV_A); /* child watcher */
1779 ev_signal_stop (EV_A_ &childev);
1780 }
1781#endif
1609 1782
1610 if (ev_is_active (&pipe_w)) 1783 if (ev_is_active (&pipe_w))
1611 { 1784 {
1612 /*ev_ref (EV_A);*/ 1785 /*ev_ref (EV_A);*/
1613 /*ev_io_stop (EV_A_ &pipe_w);*/ 1786 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1617 close (evfd); 1790 close (evfd);
1618#endif 1791#endif
1619 1792
1620 if (evpipe [0] >= 0) 1793 if (evpipe [0] >= 0)
1621 { 1794 {
1622 close (evpipe [0]); 1795 EV_WIN32_CLOSE_FD (evpipe [0]);
1623 close (evpipe [1]); 1796 EV_WIN32_CLOSE_FD (evpipe [1]);
1624 } 1797 }
1625 } 1798 }
1626 1799
1627#if EV_USE_SIGNALFD 1800#if EV_USE_SIGNALFD
1628 if (ev_is_active (&sigfd_w)) 1801 if (ev_is_active (&sigfd_w))
1629 {
1630 /*ev_ref (EV_A);*/
1631 /*ev_io_stop (EV_A_ &sigfd_w);*/
1632
1633 close (sigfd); 1802 close (sigfd);
1634 }
1635#endif 1803#endif
1636 1804
1637#if EV_USE_INOTIFY 1805#if EV_USE_INOTIFY
1638 if (fs_fd >= 0) 1806 if (fs_fd >= 0)
1639 close (fs_fd); 1807 close (fs_fd);
1640#endif 1808#endif
1641 1809
1642 if (backend_fd >= 0) 1810 if (backend_fd >= 0)
1643 close (backend_fd); 1811 close (backend_fd);
1644 1812
1813#if EV_USE_IOCP
1814 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1815#endif
1645#if EV_USE_PORT 1816#if EV_USE_PORT
1646 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1817 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1647#endif 1818#endif
1648#if EV_USE_KQUEUE 1819#if EV_USE_KQUEUE
1649 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1820 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1676 array_free (periodic, EMPTY); 1847 array_free (periodic, EMPTY);
1677#endif 1848#endif
1678#if EV_FORK_ENABLE 1849#if EV_FORK_ENABLE
1679 array_free (fork, EMPTY); 1850 array_free (fork, EMPTY);
1680#endif 1851#endif
1852#if EV_CLEANUP_ENABLE
1853 array_free (cleanup, EMPTY);
1854#endif
1681 array_free (prepare, EMPTY); 1855 array_free (prepare, EMPTY);
1682 array_free (check, EMPTY); 1856 array_free (check, EMPTY);
1683#if EV_ASYNC_ENABLE 1857#if EV_ASYNC_ENABLE
1684 array_free (async, EMPTY); 1858 array_free (async, EMPTY);
1685#endif 1859#endif
1686 1860
1687 backend = 0; 1861 backend = 0;
1862
1863#if EV_MULTIPLICITY
1864 if (ev_is_default_loop (EV_A))
1865#endif
1866 ev_default_loop_ptr = 0;
1867#if EV_MULTIPLICITY
1868 else
1869 ev_free (EV_A);
1870#endif
1688} 1871}
1689 1872
1690#if EV_USE_INOTIFY 1873#if EV_USE_INOTIFY
1691inline_size void infy_fork (EV_P); 1874inline_size void infy_fork (EV_P);
1692#endif 1875#endif
… …
1724 close (evfd); 1907 close (evfd);
1725#endif 1908#endif
1726 1909
1727 if (evpipe [0] >= 0) 1910 if (evpipe [0] >= 0)
1728 { 1911 {
1729 close (evpipe [0]); 1912 EV_WIN32_CLOSE_FD (evpipe [0]);
1730 close (evpipe [1]); 1913 EV_WIN32_CLOSE_FD (evpipe [1]);
1731 } 1914 }
1732 1915
1916#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1733 evpipe_init (EV_A); 1917 evpipe_init (EV_A);
1734 /* now iterate over everything, in case we missed something */ 1918 /* now iterate over everything, in case we missed something */
1735 pipecb (EV_A_ &pipe_w, EV_READ); 1919 pipecb (EV_A_ &pipe_w, EV_READ);
1920#endif
1736 } 1921 }
1737 1922
1738 postfork = 0; 1923 postfork = 0;
1739} 1924}
1740 1925
… …
1749 loop_init (EV_A_ flags); 1934 loop_init (EV_A_ flags);
1750 1935
1751 if (ev_backend (EV_A)) 1936 if (ev_backend (EV_A))
1752 return EV_A; 1937 return EV_A;
1753 1938
1939 ev_free (EV_A);
1754 return 0; 1940 return 0;
1755} 1941}
1756 1942
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 */ 1943#endif /* multiplicity */
1770 1944
1771#if EV_VERIFY 1945#if EV_VERIFY
1772static void noinline 1946static void noinline
1773verify_watcher (EV_P_ W w) 1947verify_watcher (EV_P_ W w)
… …
1802 verify_watcher (EV_A_ ws [cnt]); 1976 verify_watcher (EV_A_ ws [cnt]);
1803 } 1977 }
1804} 1978}
1805#endif 1979#endif
1806 1980
1807#if EV_MINIMAL < 2 1981#if EV_FEATURE_API
1808void 1982void
1809ev_loop_verify (EV_P) 1983ev_verify (EV_P)
1810{ 1984{
1811#if EV_VERIFY 1985#if EV_VERIFY
1812 int i; 1986 int i;
1813 WL w; 1987 WL w;
1814 1988
… …
1848#if EV_FORK_ENABLE 2022#if EV_FORK_ENABLE
1849 assert (forkmax >= forkcnt); 2023 assert (forkmax >= forkcnt);
1850 array_verify (EV_A_ (W *)forks, forkcnt); 2024 array_verify (EV_A_ (W *)forks, forkcnt);
1851#endif 2025#endif
1852 2026
2027#if EV_CLEANUP_ENABLE
2028 assert (cleanupmax >= cleanupcnt);
2029 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2030#endif
2031
1853#if EV_ASYNC_ENABLE 2032#if EV_ASYNC_ENABLE
1854 assert (asyncmax >= asynccnt); 2033 assert (asyncmax >= asynccnt);
1855 array_verify (EV_A_ (W *)asyncs, asynccnt); 2034 array_verify (EV_A_ (W *)asyncs, asynccnt);
1856#endif 2035#endif
1857 2036
2037#if EV_PREPARE_ENABLE
1858 assert (preparemax >= preparecnt); 2038 assert (preparemax >= preparecnt);
1859 array_verify (EV_A_ (W *)prepares, preparecnt); 2039 array_verify (EV_A_ (W *)prepares, preparecnt);
2040#endif
1860 2041
2042#if EV_CHECK_ENABLE
1861 assert (checkmax >= checkcnt); 2043 assert (checkmax >= checkcnt);
1862 array_verify (EV_A_ (W *)checks, checkcnt); 2044 array_verify (EV_A_ (W *)checks, checkcnt);
2045#endif
1863 2046
1864# if 0 2047# if 0
2048#if EV_CHILD_ENABLE
1865 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2049 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1866 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2050 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2051#endif
1867# endif 2052# endif
1868#endif 2053#endif
1869} 2054}
1870#endif 2055#endif
1871 2056
1872#if EV_MULTIPLICITY 2057#if EV_MULTIPLICITY
1873struct ev_loop * 2058struct ev_loop *
1874ev_default_loop_init (unsigned int flags)
1875#else 2059#else
1876int 2060int
2061#endif
1877ev_default_loop (unsigned int flags) 2062ev_default_loop (unsigned int flags)
1878#endif
1879{ 2063{
1880 if (!ev_default_loop_ptr) 2064 if (!ev_default_loop_ptr)
1881 { 2065 {
1882#if EV_MULTIPLICITY 2066#if EV_MULTIPLICITY
1883 EV_P = ev_default_loop_ptr = &default_loop_struct; 2067 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1887 2071
1888 loop_init (EV_A_ flags); 2072 loop_init (EV_A_ flags);
1889 2073
1890 if (ev_backend (EV_A)) 2074 if (ev_backend (EV_A))
1891 { 2075 {
1892#ifndef _WIN32 2076#if EV_CHILD_ENABLE
1893 ev_signal_init (&childev, childcb, SIGCHLD); 2077 ev_signal_init (&childev, childcb, SIGCHLD);
1894 ev_set_priority (&childev, EV_MAXPRI); 2078 ev_set_priority (&childev, EV_MAXPRI);
1895 ev_signal_start (EV_A_ &childev); 2079 ev_signal_start (EV_A_ &childev);
1896 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2080 ev_unref (EV_A); /* child watcher should not keep loop alive */
1897#endif 2081#endif
… …
1902 2086
1903 return ev_default_loop_ptr; 2087 return ev_default_loop_ptr;
1904} 2088}
1905 2089
1906void 2090void
1907ev_default_destroy (void) 2091ev_loop_fork (EV_P)
1908{ 2092{
1909#if EV_MULTIPLICITY
1910 EV_P = 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 EV_P = ev_default_loop_ptr;
1928#endif
1929
1930 postfork = 1; /* must be in line with ev_loop_fork */ 2093 postfork = 1; /* must be in line with ev_default_fork */
1931} 2094}
1932 2095
1933/*****************************************************************************/ 2096/*****************************************************************************/
1934 2097
1935void 2098void
… …
1957 2120
1958 for (pri = NUMPRI; pri--; ) 2121 for (pri = NUMPRI; pri--; )
1959 while (pendingcnt [pri]) 2122 while (pendingcnt [pri])
1960 { 2123 {
1961 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2124 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 2125
1966 p->w->pending = 0; 2126 p->w->pending = 0;
1967 EV_CB_INVOKE (p->w, p->events); 2127 EV_CB_INVOKE (p->w, p->events);
1968 EV_FREQUENT_CHECK; 2128 EV_FREQUENT_CHECK;
1969 } 2129 }
… …
2026 EV_FREQUENT_CHECK; 2186 EV_FREQUENT_CHECK;
2027 feed_reverse (EV_A_ (W)w); 2187 feed_reverse (EV_A_ (W)w);
2028 } 2188 }
2029 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2189 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2030 2190
2031 feed_reverse_done (EV_A_ EV_TIMEOUT); 2191 feed_reverse_done (EV_A_ EV_TIMER);
2032 } 2192 }
2033} 2193}
2034 2194
2035#if EV_PERIODIC_ENABLE 2195#if EV_PERIODIC_ENABLE
2036/* make periodics pending */ 2196/* make periodics pending */
… …
2089 feed_reverse_done (EV_A_ EV_PERIODIC); 2249 feed_reverse_done (EV_A_ EV_PERIODIC);
2090 } 2250 }
2091} 2251}
2092 2252
2093/* simply recalculate all periodics */ 2253/* simply recalculate all periodics */
2094/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2254/* TODO: maybe ensure that at least one event happens when jumping forward? */
2095static void noinline 2255static void noinline
2096periodics_reschedule (EV_P) 2256periodics_reschedule (EV_P)
2097{ 2257{
2098 int i; 2258 int i;
2099 2259
… …
2127 ANHE_at_cache (*he); 2287 ANHE_at_cache (*he);
2128 } 2288 }
2129} 2289}
2130 2290
2131/* fetch new monotonic and realtime times from the kernel */ 2291/* fetch new monotonic and realtime times from the kernel */
2132/* also detetc if there was a timejump, and act accordingly */ 2292/* also detect if there was a timejump, and act accordingly */
2133inline_speed void 2293inline_speed void
2134time_update (EV_P_ ev_tstamp max_block) 2294time_update (EV_P_ ev_tstamp max_block)
2135{ 2295{
2136#if EV_USE_MONOTONIC 2296#if EV_USE_MONOTONIC
2137 if (expect_true (have_monotonic)) 2297 if (expect_true (have_monotonic))
… …
2195 mn_now = ev_rt_now; 2355 mn_now = ev_rt_now;
2196 } 2356 }
2197} 2357}
2198 2358
2199void 2359void
2200ev_loop (EV_P_ int flags) 2360ev_run (EV_P_ int flags)
2201{ 2361{
2202#if EV_MINIMAL < 2 2362#if EV_FEATURE_API
2203 ++loop_depth; 2363 ++loop_depth;
2204#endif 2364#endif
2205 2365
2206 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2366 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2207 2367
2208 loop_done = EVUNLOOP_CANCEL; 2368 loop_done = EVBREAK_CANCEL;
2209 2369
2210 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2370 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2211 2371
2212 do 2372 do
2213 { 2373 {
2214#if EV_VERIFY >= 2 2374#if EV_VERIFY >= 2
2215 ev_loop_verify (EV_A); 2375 ev_verify (EV_A);
2216#endif 2376#endif
2217 2377
2218#ifndef _WIN32 2378#ifndef _WIN32
2219 if (expect_false (curpid)) /* penalise the forking check even more */ 2379 if (expect_false (curpid)) /* penalise the forking check even more */
2220 if (expect_false (getpid () != curpid)) 2380 if (expect_false (getpid () != curpid))
… …
2232 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2392 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2233 EV_INVOKE_PENDING; 2393 EV_INVOKE_PENDING;
2234 } 2394 }
2235#endif 2395#endif
2236 2396
2397#if EV_PREPARE_ENABLE
2237 /* queue prepare watchers (and execute them) */ 2398 /* queue prepare watchers (and execute them) */
2238 if (expect_false (preparecnt)) 2399 if (expect_false (preparecnt))
2239 { 2400 {
2240 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2401 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2241 EV_INVOKE_PENDING; 2402 EV_INVOKE_PENDING;
2242 } 2403 }
2404#endif
2243 2405
2244 if (expect_false (loop_done)) 2406 if (expect_false (loop_done))
2245 break; 2407 break;
2246 2408
2247 /* we might have forked, so reify kernel state if necessary */ 2409 /* we might have forked, so reify kernel state if necessary */
… …
2254 /* calculate blocking time */ 2416 /* calculate blocking time */
2255 { 2417 {
2256 ev_tstamp waittime = 0.; 2418 ev_tstamp waittime = 0.;
2257 ev_tstamp sleeptime = 0.; 2419 ev_tstamp sleeptime = 0.;
2258 2420
2421 /* remember old timestamp for io_blocktime calculation */
2422 ev_tstamp prev_mn_now = mn_now;
2423
2424 /* update time to cancel out callback processing overhead */
2425 time_update (EV_A_ 1e100);
2426
2259 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2427 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2260 { 2428 {
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; 2429 waittime = MAX_BLOCKTIME;
2268 2430
2269 if (timercnt) 2431 if (timercnt)
2270 { 2432 {
2271 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2433 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
2298 waittime -= sleeptime; 2460 waittime -= sleeptime;
2299 } 2461 }
2300 } 2462 }
2301 } 2463 }
2302 2464
2303#if EV_MINIMAL < 2 2465#if EV_FEATURE_API
2304 ++loop_count; 2466 ++loop_count;
2305#endif 2467#endif
2306 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2468 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2307 backend_poll (EV_A_ waittime); 2469 backend_poll (EV_A_ waittime);
2308 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2470 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2309 2471
2310 /* update ev_rt_now, do magic */ 2472 /* update ev_rt_now, do magic */
2311 time_update (EV_A_ waittime + sleeptime); 2473 time_update (EV_A_ waittime + sleeptime);
2312 } 2474 }
2313 2475
… …
2320#if EV_IDLE_ENABLE 2482#if EV_IDLE_ENABLE
2321 /* queue idle watchers unless other events are pending */ 2483 /* queue idle watchers unless other events are pending */
2322 idle_reify (EV_A); 2484 idle_reify (EV_A);
2323#endif 2485#endif
2324 2486
2487#if EV_CHECK_ENABLE
2325 /* queue check watchers, to be executed first */ 2488 /* queue check watchers, to be executed first */
2326 if (expect_false (checkcnt)) 2489 if (expect_false (checkcnt))
2327 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2490 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2491#endif
2328 2492
2329 EV_INVOKE_PENDING; 2493 EV_INVOKE_PENDING;
2330 } 2494 }
2331 while (expect_true ( 2495 while (expect_true (
2332 activecnt 2496 activecnt
2333 && !loop_done 2497 && !loop_done
2334 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2498 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2335 )); 2499 ));
2336 2500
2337 if (loop_done == EVUNLOOP_ONE) 2501 if (loop_done == EVBREAK_ONE)
2338 loop_done = EVUNLOOP_CANCEL; 2502 loop_done = EVBREAK_CANCEL;
2339 2503
2340#if EV_MINIMAL < 2 2504#if EV_FEATURE_API
2341 --loop_depth; 2505 --loop_depth;
2342#endif 2506#endif
2343} 2507}
2344 2508
2345void 2509void
2346ev_unloop (EV_P_ int how) 2510ev_break (EV_P_ int how)
2347{ 2511{
2348 loop_done = how; 2512 loop_done = how;
2349} 2513}
2350 2514
2351void 2515void
… …
2471 2635
2472 if (expect_false (ev_is_active (w))) 2636 if (expect_false (ev_is_active (w)))
2473 return; 2637 return;
2474 2638
2475 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2639 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)))); 2640 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2477 2641
2478 EV_FREQUENT_CHECK; 2642 EV_FREQUENT_CHECK;
2479 2643
2480 ev_start (EV_A_ (W)w, 1); 2644 ev_start (EV_A_ (W)w, 1);
2481 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2645 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2499 EV_FREQUENT_CHECK; 2663 EV_FREQUENT_CHECK;
2500 2664
2501 wlist_del (&anfds[w->fd].head, (WL)w); 2665 wlist_del (&anfds[w->fd].head, (WL)w);
2502 ev_stop (EV_A_ (W)w); 2666 ev_stop (EV_A_ (W)w);
2503 2667
2504 fd_change (EV_A_ w->fd, 1); 2668 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2505 2669
2506 EV_FREQUENT_CHECK; 2670 EV_FREQUENT_CHECK;
2507} 2671}
2508 2672
2509void noinline 2673void noinline
… …
2551 timers [active] = timers [timercnt + HEAP0]; 2715 timers [active] = timers [timercnt + HEAP0];
2552 adjustheap (timers, timercnt, active); 2716 adjustheap (timers, timercnt, active);
2553 } 2717 }
2554 } 2718 }
2555 2719
2556 EV_FREQUENT_CHECK;
2557
2558 ev_at (w) -= mn_now; 2720 ev_at (w) -= mn_now;
2559 2721
2560 ev_stop (EV_A_ (W)w); 2722 ev_stop (EV_A_ (W)w);
2723
2724 EV_FREQUENT_CHECK;
2561} 2725}
2562 2726
2563void noinline 2727void noinline
2564ev_timer_again (EV_P_ ev_timer *w) 2728ev_timer_again (EV_P_ ev_timer *w)
2565{ 2729{
… …
2644 periodics [active] = periodics [periodiccnt + HEAP0]; 2808 periodics [active] = periodics [periodiccnt + HEAP0];
2645 adjustheap (periodics, periodiccnt, active); 2809 adjustheap (periodics, periodiccnt, active);
2646 } 2810 }
2647 } 2811 }
2648 2812
2649 EV_FREQUENT_CHECK;
2650
2651 ev_stop (EV_A_ (W)w); 2813 ev_stop (EV_A_ (W)w);
2814
2815 EV_FREQUENT_CHECK;
2652} 2816}
2653 2817
2654void noinline 2818void noinline
2655ev_periodic_again (EV_P_ ev_periodic *w) 2819ev_periodic_again (EV_P_ ev_periodic *w)
2656{ 2820{
… …
2662 2826
2663#ifndef SA_RESTART 2827#ifndef SA_RESTART
2664# define SA_RESTART 0 2828# define SA_RESTART 0
2665#endif 2829#endif
2666 2830
2831#if EV_SIGNAL_ENABLE
2832
2667void noinline 2833void noinline
2668ev_signal_start (EV_P_ ev_signal *w) 2834ev_signal_start (EV_P_ ev_signal *w)
2669{ 2835{
2670 if (expect_false (ev_is_active (w))) 2836 if (expect_false (ev_is_active (w)))
2671 return; 2837 return;
2672 2838
2673 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 2839 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2674 2840
2675#if EV_MULTIPLICITY 2841#if EV_MULTIPLICITY
2676 assert (("libev: tried to attach to a signal from two different loops", 2842 assert (("libev: a signal must not be attached to two different loops",
2677 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 2843 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2678 2844
2679 signals [w->signum - 1].loop = EV_A; 2845 signals [w->signum - 1].loop = EV_A;
2680#endif 2846#endif
2681 2847
… …
2717 if (!((WL)w)->next) 2883 if (!((WL)w)->next)
2718# if EV_USE_SIGNALFD 2884# if EV_USE_SIGNALFD
2719 if (sigfd < 0) /*TODO*/ 2885 if (sigfd < 0) /*TODO*/
2720# endif 2886# endif
2721 { 2887 {
2722# if _WIN32 2888# ifdef _WIN32
2889 evpipe_init (EV_A);
2890
2723 signal (w->signum, ev_sighandler); 2891 signal (w->signum, ev_sighandler);
2724# else 2892# else
2725 struct sigaction sa; 2893 struct sigaction sa;
2726 2894
2727 evpipe_init (EV_A); 2895 evpipe_init (EV_A);
… …
2729 sa.sa_handler = ev_sighandler; 2897 sa.sa_handler = ev_sighandler;
2730 sigfillset (&sa.sa_mask); 2898 sigfillset (&sa.sa_mask);
2731 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2899 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2732 sigaction (w->signum, &sa, 0); 2900 sigaction (w->signum, &sa, 0);
2733 2901
2902 if (origflags & EVFLAG_NOSIGMASK)
2903 {
2734 sigemptyset (&sa.sa_mask); 2904 sigemptyset (&sa.sa_mask);
2735 sigaddset (&sa.sa_mask, w->signum); 2905 sigaddset (&sa.sa_mask, w->signum);
2736 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 2906 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2907 }
2737#endif 2908#endif
2738 } 2909 }
2739 2910
2740 EV_FREQUENT_CHECK; 2911 EV_FREQUENT_CHECK;
2741} 2912}
… …
2758 signals [w->signum - 1].loop = 0; /* unattach from signal */ 2929 signals [w->signum - 1].loop = 0; /* unattach from signal */
2759#endif 2930#endif
2760#if EV_USE_SIGNALFD 2931#if EV_USE_SIGNALFD
2761 if (sigfd >= 0) 2932 if (sigfd >= 0)
2762 { 2933 {
2763 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 2934 sigset_t ss;
2935
2936 sigemptyset (&ss);
2937 sigaddset (&ss, w->signum);
2764 sigdelset (&sigfd_set, w->signum); 2938 sigdelset (&sigfd_set, w->signum);
2939
2765 signalfd (sigfd, &sigfd_set, 0); 2940 signalfd (sigfd, &sigfd_set, 0);
2766 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 2941 sigprocmask (SIG_UNBLOCK, &ss, 0);
2767 /*TODO: maybe unblock signal? */
2768 } 2942 }
2769 else 2943 else
2770#endif 2944#endif
2771 signal (w->signum, SIG_DFL); 2945 signal (w->signum, SIG_DFL);
2772 } 2946 }
2773 2947
2774 EV_FREQUENT_CHECK; 2948 EV_FREQUENT_CHECK;
2775} 2949}
2776 2950
2951#endif
2952
2953#if EV_CHILD_ENABLE
2954
2777void 2955void
2778ev_child_start (EV_P_ ev_child *w) 2956ev_child_start (EV_P_ ev_child *w)
2779{ 2957{
2780#if EV_MULTIPLICITY 2958#if EV_MULTIPLICITY
2781 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2959 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2784 return; 2962 return;
2785 2963
2786 EV_FREQUENT_CHECK; 2964 EV_FREQUENT_CHECK;
2787 2965
2788 ev_start (EV_A_ (W)w, 1); 2966 ev_start (EV_A_ (W)w, 1);
2789 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2967 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2790 2968
2791 EV_FREQUENT_CHECK; 2969 EV_FREQUENT_CHECK;
2792} 2970}
2793 2971
2794void 2972void
… …
2798 if (expect_false (!ev_is_active (w))) 2976 if (expect_false (!ev_is_active (w)))
2799 return; 2977 return;
2800 2978
2801 EV_FREQUENT_CHECK; 2979 EV_FREQUENT_CHECK;
2802 2980
2803 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2981 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2804 ev_stop (EV_A_ (W)w); 2982 ev_stop (EV_A_ (W)w);
2805 2983
2806 EV_FREQUENT_CHECK; 2984 EV_FREQUENT_CHECK;
2807} 2985}
2986
2987#endif
2808 2988
2809#if EV_STAT_ENABLE 2989#if EV_STAT_ENABLE
2810 2990
2811# ifdef _WIN32 2991# ifdef _WIN32
2812# undef lstat 2992# undef lstat
… …
2818#define MIN_STAT_INTERVAL 0.1074891 2998#define MIN_STAT_INTERVAL 0.1074891
2819 2999
2820static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3000static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2821 3001
2822#if EV_USE_INOTIFY 3002#if EV_USE_INOTIFY
2823# define EV_INOTIFY_BUFSIZE 8192 3003
3004/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3005# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2824 3006
2825static void noinline 3007static void noinline
2826infy_add (EV_P_ ev_stat *w) 3008infy_add (EV_P_ ev_stat *w)
2827{ 3009{
2828 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); 3010 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);
2829 3011
2830 if (w->wd < 0) 3012 if (w->wd >= 0)
3013 {
3014 struct statfs sfs;
3015
3016 /* now local changes will be tracked by inotify, but remote changes won't */
3017 /* unless the filesystem is known to be local, we therefore still poll */
3018 /* also do poll on <2.6.25, but with normal frequency */
3019
3020 if (!fs_2625)
3021 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3022 else if (!statfs (w->path, &sfs)
3023 && (sfs.f_type == 0x1373 /* devfs */
3024 || sfs.f_type == 0xEF53 /* ext2/3 */
3025 || sfs.f_type == 0x3153464a /* jfs */
3026 || sfs.f_type == 0x52654973 /* reiser3 */
3027 || sfs.f_type == 0x01021994 /* tempfs */
3028 || sfs.f_type == 0x58465342 /* xfs */))
3029 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3030 else
3031 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2831 { 3032 }
3033 else
3034 {
3035 /* can't use inotify, continue to stat */
2832 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3036 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2833 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2834 3037
2835 /* monitor some parent directory for speedup hints */ 3038 /* if path is not there, monitor some parent directory for speedup hints */
2836 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3039 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2837 /* but an efficiency issue only */ 3040 /* but an efficiency issue only */
2838 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3041 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2839 { 3042 {
2840 char path [4096]; 3043 char path [4096];
… …
2856 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3059 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2857 } 3060 }
2858 } 3061 }
2859 3062
2860 if (w->wd >= 0) 3063 if (w->wd >= 0)
2861 {
2862 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3064 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2863 3065
2864 /* now local changes will be tracked by inotify, but remote changes won't */ 3066 /* now re-arm timer, if required */
2865 /* unless the filesystem it known to be local, we therefore still poll */ 3067 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2866 /* also do poll on <2.6.25, but with normal frequency */
2867 struct statfs sfs;
2868
2869 if (fs_2625 && !statfs (w->path, &sfs))
2870 if (sfs.f_type == 0x1373 /* devfs */
2871 || sfs.f_type == 0xEF53 /* ext2/3 */
2872 || sfs.f_type == 0x3153464a /* jfs */
2873 || sfs.f_type == 0x52654973 /* reiser3 */
2874 || sfs.f_type == 0x01021994 /* tempfs */
2875 || sfs.f_type == 0x58465342 /* xfs */)
2876 return;
2877
2878 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2879 ev_timer_again (EV_A_ &w->timer); 3068 ev_timer_again (EV_A_ &w->timer);
2880 } 3069 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2881} 3070}
2882 3071
2883static void noinline 3072static void noinline
2884infy_del (EV_P_ ev_stat *w) 3073infy_del (EV_P_ ev_stat *w)
2885{ 3074{
… …
2888 3077
2889 if (wd < 0) 3078 if (wd < 0)
2890 return; 3079 return;
2891 3080
2892 w->wd = -2; 3081 w->wd = -2;
2893 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3082 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2894 wlist_del (&fs_hash [slot].head, (WL)w); 3083 wlist_del (&fs_hash [slot].head, (WL)w);
2895 3084
2896 /* remove this watcher, if others are watching it, they will rearm */ 3085 /* remove this watcher, if others are watching it, they will rearm */
2897 inotify_rm_watch (fs_fd, wd); 3086 inotify_rm_watch (fs_fd, wd);
2898} 3087}
… …
2900static void noinline 3089static void noinline
2901infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3090infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2902{ 3091{
2903 if (slot < 0) 3092 if (slot < 0)
2904 /* overflow, need to check for all hash slots */ 3093 /* overflow, need to check for all hash slots */
2905 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3094 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2906 infy_wd (EV_A_ slot, wd, ev); 3095 infy_wd (EV_A_ slot, wd, ev);
2907 else 3096 else
2908 { 3097 {
2909 WL w_; 3098 WL w_;
2910 3099
2911 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3100 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2912 { 3101 {
2913 ev_stat *w = (ev_stat *)w_; 3102 ev_stat *w = (ev_stat *)w_;
2914 w_ = w_->next; /* lets us remove this watcher and all before it */ 3103 w_ = w_->next; /* lets us remove this watcher and all before it */
2915 3104
2916 if (w->wd == wd || wd == -1) 3105 if (w->wd == wd || wd == -1)
2917 { 3106 {
2918 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3107 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2919 { 3108 {
2920 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3109 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2921 w->wd = -1; 3110 w->wd = -1;
2922 infy_add (EV_A_ w); /* re-add, no matter what */ 3111 infy_add (EV_A_ w); /* re-add, no matter what */
2923 } 3112 }
2924 3113
2925 stat_timer_cb (EV_A_ &w->timer, 0); 3114 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2930 3119
2931static void 3120static void
2932infy_cb (EV_P_ ev_io *w, int revents) 3121infy_cb (EV_P_ ev_io *w, int revents)
2933{ 3122{
2934 char buf [EV_INOTIFY_BUFSIZE]; 3123 char buf [EV_INOTIFY_BUFSIZE];
2935 struct inotify_event *ev = (struct inotify_event *)buf;
2936 int ofs; 3124 int ofs;
2937 int len = read (fs_fd, buf, sizeof (buf)); 3125 int len = read (fs_fd, buf, sizeof (buf));
2938 3126
2939 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3127 for (ofs = 0; ofs < len; )
3128 {
3129 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2940 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3130 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3131 ofs += sizeof (struct inotify_event) + ev->len;
3132 }
2941} 3133}
2942 3134
2943inline_size void 3135inline_size void
2944check_2625 (EV_P) 3136ev_check_2625 (EV_P)
2945{ 3137{
2946 /* kernels < 2.6.25 are borked 3138 /* kernels < 2.6.25 are borked
2947 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3139 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2948 */ 3140 */
2949 struct utsname buf; 3141 if (ev_linux_version () < 0x020619)
2950 int major, minor, micro;
2951
2952 if (uname (&buf))
2953 return; 3142 return;
2954 3143
2955 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2956 return;
2957
2958 if (major < 2
2959 || (major == 2 && minor < 6)
2960 || (major == 2 && minor == 6 && micro < 25))
2961 return;
2962
2963 fs_2625 = 1; 3144 fs_2625 = 1;
3145}
3146
3147inline_size int
3148infy_newfd (void)
3149{
3150#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3151 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3152 if (fd >= 0)
3153 return fd;
3154#endif
3155 return inotify_init ();
2964} 3156}
2965 3157
2966inline_size void 3158inline_size void
2967infy_init (EV_P) 3159infy_init (EV_P)
2968{ 3160{
2969 if (fs_fd != -2) 3161 if (fs_fd != -2)
2970 return; 3162 return;
2971 3163
2972 fs_fd = -1; 3164 fs_fd = -1;
2973 3165
2974 check_2625 (EV_A); 3166 ev_check_2625 (EV_A);
2975 3167
2976 fs_fd = inotify_init (); 3168 fs_fd = infy_newfd ();
2977 3169
2978 if (fs_fd >= 0) 3170 if (fs_fd >= 0)
2979 { 3171 {
3172 fd_intern (fs_fd);
2980 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3173 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2981 ev_set_priority (&fs_w, EV_MAXPRI); 3174 ev_set_priority (&fs_w, EV_MAXPRI);
2982 ev_io_start (EV_A_ &fs_w); 3175 ev_io_start (EV_A_ &fs_w);
3176 ev_unref (EV_A);
2983 } 3177 }
2984} 3178}
2985 3179
2986inline_size void 3180inline_size void
2987infy_fork (EV_P) 3181infy_fork (EV_P)
… …
2989 int slot; 3183 int slot;
2990 3184
2991 if (fs_fd < 0) 3185 if (fs_fd < 0)
2992 return; 3186 return;
2993 3187
3188 ev_ref (EV_A);
3189 ev_io_stop (EV_A_ &fs_w);
2994 close (fs_fd); 3190 close (fs_fd);
2995 fs_fd = inotify_init (); 3191 fs_fd = infy_newfd ();
2996 3192
3193 if (fs_fd >= 0)
3194 {
3195 fd_intern (fs_fd);
3196 ev_io_set (&fs_w, fs_fd, EV_READ);
3197 ev_io_start (EV_A_ &fs_w);
3198 ev_unref (EV_A);
3199 }
3200
2997 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3201 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2998 { 3202 {
2999 WL w_ = fs_hash [slot].head; 3203 WL w_ = fs_hash [slot].head;
3000 fs_hash [slot].head = 0; 3204 fs_hash [slot].head = 0;
3001 3205
3002 while (w_) 3206 while (w_)
… …
3007 w->wd = -1; 3211 w->wd = -1;
3008 3212
3009 if (fs_fd >= 0) 3213 if (fs_fd >= 0)
3010 infy_add (EV_A_ w); /* re-add, no matter what */ 3214 infy_add (EV_A_ w); /* re-add, no matter what */
3011 else 3215 else
3216 {
3217 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3218 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3012 ev_timer_again (EV_A_ &w->timer); 3219 ev_timer_again (EV_A_ &w->timer);
3220 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3221 }
3013 } 3222 }
3014 } 3223 }
3015} 3224}
3016 3225
3017#endif 3226#endif
… …
3034static void noinline 3243static void noinline
3035stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3244stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3036{ 3245{
3037 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3246 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3038 3247
3039 /* we copy this here each the time so that */ 3248 ev_statdata prev = w->attr;
3040 /* prev has the old value when the callback gets invoked */
3041 w->prev = w->attr;
3042 ev_stat_stat (EV_A_ w); 3249 ev_stat_stat (EV_A_ w);
3043 3250
3044 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3251 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3045 if ( 3252 if (
3046 w->prev.st_dev != w->attr.st_dev 3253 prev.st_dev != w->attr.st_dev
3047 || w->prev.st_ino != w->attr.st_ino 3254 || prev.st_ino != w->attr.st_ino
3048 || w->prev.st_mode != w->attr.st_mode 3255 || prev.st_mode != w->attr.st_mode
3049 || w->prev.st_nlink != w->attr.st_nlink 3256 || prev.st_nlink != w->attr.st_nlink
3050 || w->prev.st_uid != w->attr.st_uid 3257 || prev.st_uid != w->attr.st_uid
3051 || w->prev.st_gid != w->attr.st_gid 3258 || prev.st_gid != w->attr.st_gid
3052 || w->prev.st_rdev != w->attr.st_rdev 3259 || prev.st_rdev != w->attr.st_rdev
3053 || w->prev.st_size != w->attr.st_size 3260 || prev.st_size != w->attr.st_size
3054 || w->prev.st_atime != w->attr.st_atime 3261 || prev.st_atime != w->attr.st_atime
3055 || w->prev.st_mtime != w->attr.st_mtime 3262 || prev.st_mtime != w->attr.st_mtime
3056 || w->prev.st_ctime != w->attr.st_ctime 3263 || prev.st_ctime != w->attr.st_ctime
3057 ) { 3264 ) {
3265 /* we only update w->prev on actual differences */
3266 /* in case we test more often than invoke the callback, */
3267 /* to ensure that prev is always different to attr */
3268 w->prev = prev;
3269
3058 #if EV_USE_INOTIFY 3270 #if EV_USE_INOTIFY
3059 if (fs_fd >= 0) 3271 if (fs_fd >= 0)
3060 { 3272 {
3061 infy_del (EV_A_ w); 3273 infy_del (EV_A_ w);
3062 infy_add (EV_A_ w); 3274 infy_add (EV_A_ w);
… …
3087 3299
3088 if (fs_fd >= 0) 3300 if (fs_fd >= 0)
3089 infy_add (EV_A_ w); 3301 infy_add (EV_A_ w);
3090 else 3302 else
3091#endif 3303#endif
3304 {
3092 ev_timer_again (EV_A_ &w->timer); 3305 ev_timer_again (EV_A_ &w->timer);
3306 ev_unref (EV_A);
3307 }
3093 3308
3094 ev_start (EV_A_ (W)w, 1); 3309 ev_start (EV_A_ (W)w, 1);
3095 3310
3096 EV_FREQUENT_CHECK; 3311 EV_FREQUENT_CHECK;
3097} 3312}
… …
3106 EV_FREQUENT_CHECK; 3321 EV_FREQUENT_CHECK;
3107 3322
3108#if EV_USE_INOTIFY 3323#if EV_USE_INOTIFY
3109 infy_del (EV_A_ w); 3324 infy_del (EV_A_ w);
3110#endif 3325#endif
3326
3327 if (ev_is_active (&w->timer))
3328 {
3329 ev_ref (EV_A);
3111 ev_timer_stop (EV_A_ &w->timer); 3330 ev_timer_stop (EV_A_ &w->timer);
3331 }
3112 3332
3113 ev_stop (EV_A_ (W)w); 3333 ev_stop (EV_A_ (W)w);
3114 3334
3115 EV_FREQUENT_CHECK; 3335 EV_FREQUENT_CHECK;
3116} 3336}
… …
3161 3381
3162 EV_FREQUENT_CHECK; 3382 EV_FREQUENT_CHECK;
3163} 3383}
3164#endif 3384#endif
3165 3385
3386#if EV_PREPARE_ENABLE
3166void 3387void
3167ev_prepare_start (EV_P_ ev_prepare *w) 3388ev_prepare_start (EV_P_ ev_prepare *w)
3168{ 3389{
3169 if (expect_false (ev_is_active (w))) 3390 if (expect_false (ev_is_active (w)))
3170 return; 3391 return;
… …
3196 3417
3197 ev_stop (EV_A_ (W)w); 3418 ev_stop (EV_A_ (W)w);
3198 3419
3199 EV_FREQUENT_CHECK; 3420 EV_FREQUENT_CHECK;
3200} 3421}
3422#endif
3201 3423
3424#if EV_CHECK_ENABLE
3202void 3425void
3203ev_check_start (EV_P_ ev_check *w) 3426ev_check_start (EV_P_ ev_check *w)
3204{ 3427{
3205 if (expect_false (ev_is_active (w))) 3428 if (expect_false (ev_is_active (w)))
3206 return; 3429 return;
… …
3232 3455
3233 ev_stop (EV_A_ (W)w); 3456 ev_stop (EV_A_ (W)w);
3234 3457
3235 EV_FREQUENT_CHECK; 3458 EV_FREQUENT_CHECK;
3236} 3459}
3460#endif
3237 3461
3238#if EV_EMBED_ENABLE 3462#if EV_EMBED_ENABLE
3239void noinline 3463void noinline
3240ev_embed_sweep (EV_P_ ev_embed *w) 3464ev_embed_sweep (EV_P_ ev_embed *w)
3241{ 3465{
3242 ev_loop (w->other, EVLOOP_NONBLOCK); 3466 ev_run (w->other, EVRUN_NOWAIT);
3243} 3467}
3244 3468
3245static void 3469static void
3246embed_io_cb (EV_P_ ev_io *io, int revents) 3470embed_io_cb (EV_P_ ev_io *io, int revents)
3247{ 3471{
3248 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3472 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3249 3473
3250 if (ev_cb (w)) 3474 if (ev_cb (w))
3251 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3475 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3252 else 3476 else
3253 ev_loop (w->other, EVLOOP_NONBLOCK); 3477 ev_run (w->other, EVRUN_NOWAIT);
3254} 3478}
3255 3479
3256static void 3480static void
3257embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3481embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3258{ 3482{
… …
3262 EV_P = w->other; 3486 EV_P = w->other;
3263 3487
3264 while (fdchangecnt) 3488 while (fdchangecnt)
3265 { 3489 {
3266 fd_reify (EV_A); 3490 fd_reify (EV_A);
3267 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3491 ev_run (EV_A_ EVRUN_NOWAIT);
3268 } 3492 }
3269 } 3493 }
3270} 3494}
3271 3495
3272static void 3496static void
… …
3278 3502
3279 { 3503 {
3280 EV_P = w->other; 3504 EV_P = w->other;
3281 3505
3282 ev_loop_fork (EV_A); 3506 ev_loop_fork (EV_A);
3283 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3507 ev_run (EV_A_ EVRUN_NOWAIT);
3284 } 3508 }
3285 3509
3286 ev_embed_start (EV_A_ w); 3510 ev_embed_start (EV_A_ w);
3287} 3511}
3288 3512
… …
3336 3560
3337 ev_io_stop (EV_A_ &w->io); 3561 ev_io_stop (EV_A_ &w->io);
3338 ev_prepare_stop (EV_A_ &w->prepare); 3562 ev_prepare_stop (EV_A_ &w->prepare);
3339 ev_fork_stop (EV_A_ &w->fork); 3563 ev_fork_stop (EV_A_ &w->fork);
3340 3564
3565 ev_stop (EV_A_ (W)w);
3566
3341 EV_FREQUENT_CHECK; 3567 EV_FREQUENT_CHECK;
3342} 3568}
3343#endif 3569#endif
3344 3570
3345#if EV_FORK_ENABLE 3571#if EV_FORK_ENABLE
… …
3378 3604
3379 EV_FREQUENT_CHECK; 3605 EV_FREQUENT_CHECK;
3380} 3606}
3381#endif 3607#endif
3382 3608
3383#if EV_ASYNC_ENABLE 3609#if EV_CLEANUP_ENABLE
3384void 3610void
3385ev_async_start (EV_P_ ev_async *w) 3611ev_cleanup_start (EV_P_ ev_cleanup *w)
3386{ 3612{
3387 if (expect_false (ev_is_active (w))) 3613 if (expect_false (ev_is_active (w)))
3388 return; 3614 return;
3615
3616 EV_FREQUENT_CHECK;
3617
3618 ev_start (EV_A_ (W)w, ++cleanupcnt);
3619 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3620 cleanups [cleanupcnt - 1] = w;
3621
3622 /* cleanup watchers should never keep a refcount on the loop */
3623 ev_unref (EV_A);
3624 EV_FREQUENT_CHECK;
3625}
3626
3627void
3628ev_cleanup_stop (EV_P_ ev_cleanup *w)
3629{
3630 clear_pending (EV_A_ (W)w);
3631 if (expect_false (!ev_is_active (w)))
3632 return;
3633
3634 EV_FREQUENT_CHECK;
3635 ev_ref (EV_A);
3636
3637 {
3638 int active = ev_active (w);
3639
3640 cleanups [active - 1] = cleanups [--cleanupcnt];
3641 ev_active (cleanups [active - 1]) = active;
3642 }
3643
3644 ev_stop (EV_A_ (W)w);
3645
3646 EV_FREQUENT_CHECK;
3647}
3648#endif
3649
3650#if EV_ASYNC_ENABLE
3651void
3652ev_async_start (EV_P_ ev_async *w)
3653{
3654 if (expect_false (ev_is_active (w)))
3655 return;
3656
3657 w->sent = 0;
3389 3658
3390 evpipe_init (EV_A); 3659 evpipe_init (EV_A);
3391 3660
3392 EV_FREQUENT_CHECK; 3661 EV_FREQUENT_CHECK;
3393 3662
… …
3471{ 3740{
3472 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3741 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3473 3742
3474 if (expect_false (!once)) 3743 if (expect_false (!once))
3475 { 3744 {
3476 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3745 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3477 return; 3746 return;
3478 } 3747 }
3479 3748
3480 once->cb = cb; 3749 once->cb = cb;
3481 once->arg = arg; 3750 once->arg = arg;
… …
3568 if (types & EV_ASYNC) 3837 if (types & EV_ASYNC)
3569 for (i = asynccnt; i--; ) 3838 for (i = asynccnt; i--; )
3570 cb (EV_A_ EV_ASYNC, asyncs [i]); 3839 cb (EV_A_ EV_ASYNC, asyncs [i]);
3571#endif 3840#endif
3572 3841
3842#if EV_PREPARE_ENABLE
3573 if (types & EV_PREPARE) 3843 if (types & EV_PREPARE)
3574 for (i = preparecnt; i--; ) 3844 for (i = preparecnt; i--; )
3575#if EV_EMBED_ENABLE 3845# if EV_EMBED_ENABLE
3576 if (ev_cb (prepares [i]) != embed_prepare_cb) 3846 if (ev_cb (prepares [i]) != embed_prepare_cb)
3577#endif 3847# endif
3578 cb (EV_A_ EV_PREPARE, prepares [i]); 3848 cb (EV_A_ EV_PREPARE, prepares [i]);
3849#endif
3579 3850
3851#if EV_CHECK_ENABLE
3580 if (types & EV_CHECK) 3852 if (types & EV_CHECK)
3581 for (i = checkcnt; i--; ) 3853 for (i = checkcnt; i--; )
3582 cb (EV_A_ EV_CHECK, checks [i]); 3854 cb (EV_A_ EV_CHECK, checks [i]);
3855#endif
3583 3856
3857#if EV_SIGNAL_ENABLE
3584 if (types & EV_SIGNAL) 3858 if (types & EV_SIGNAL)
3585 for (i = 0; i < EV_NSIG - 1; ++i) 3859 for (i = 0; i < EV_NSIG - 1; ++i)
3586 for (wl = signals [i].head; wl; ) 3860 for (wl = signals [i].head; wl; )
3587 { 3861 {
3588 wn = wl->next; 3862 wn = wl->next;
3589 cb (EV_A_ EV_SIGNAL, wl); 3863 cb (EV_A_ EV_SIGNAL, wl);
3590 wl = wn; 3864 wl = wn;
3591 } 3865 }
3866#endif
3592 3867
3868#if EV_CHILD_ENABLE
3593 if (types & EV_CHILD) 3869 if (types & EV_CHILD)
3594 for (i = EV_PID_HASHSIZE; i--; ) 3870 for (i = (EV_PID_HASHSIZE); i--; )
3595 for (wl = childs [i]; wl; ) 3871 for (wl = childs [i]; wl; )
3596 { 3872 {
3597 wn = wl->next; 3873 wn = wl->next;
3598 cb (EV_A_ EV_CHILD, wl); 3874 cb (EV_A_ EV_CHILD, wl);
3599 wl = wn; 3875 wl = wn;
3600 } 3876 }
3877#endif
3601/* EV_STAT 0x00001000 /* stat data changed */ 3878/* EV_STAT 0x00001000 /* stat data changed */
3602/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3879/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3603} 3880}
3604#endif 3881#endif
3605 3882
3606#if EV_MULTIPLICITY 3883#if EV_MULTIPLICITY
3607 #include "ev_wrap.h" 3884 #include "ev_wrap.h"
3608#endif 3885#endif
3609 3886
3610#ifdef __cplusplus 3887EV_CPP(})
3611}
3612#endif
3613 3888

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