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Comparing libev/ev.c (file contents):
Revision 1.304 by root, Sun Jul 19 03:12:28 2009 UTC vs.
Revision 1.372 by root, Wed Feb 16 08:02:50 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
… …
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 */
208
209/* try to deduce the maximum number of signals on this platform */
210#if defined (EV_NSIG)
211/* use what's provided */
212#elif defined (NSIG)
213# define EV_NSIG (NSIG)
214#elif defined(_NSIG)
215# define EV_NSIG (_NSIG)
216#elif defined (SIGMAX)
217# define EV_NSIG (SIGMAX+1)
218#elif defined (SIG_MAX)
219# define EV_NSIG (SIG_MAX+1)
220#elif defined (_SIG_MAX)
221# define EV_NSIG (_SIG_MAX+1)
222#elif defined (MAXSIG)
223# define EV_NSIG (MAXSIG+1)
224#elif defined (MAX_SIG)
225# define EV_NSIG (MAX_SIG+1)
226#elif defined (SIGARRAYSIZE)
227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
228#elif defined (_sys_nsig)
229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
230#else
231# error "unable to find value for NSIG, please report"
232/* to make it compile regardless, just remove the above line, */
233/* but consider reporting it, too! :) */
234# define EV_NSIG 65
235#endif
190 236
191#ifndef EV_USE_CLOCK_SYSCALL 237#ifndef EV_USE_CLOCK_SYSCALL
192# if __linux && __GLIBC__ >= 2 238# if __linux && __GLIBC__ >= 2
193# define EV_USE_CLOCK_SYSCALL 1 239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
194# else 240# else
195# define EV_USE_CLOCK_SYSCALL 0 241# define EV_USE_CLOCK_SYSCALL 0
196# endif 242# endif
197#endif 243#endif
198 244
199#ifndef EV_USE_MONOTONIC 245#ifndef EV_USE_MONOTONIC
200# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
201# define EV_USE_MONOTONIC 1 247# define EV_USE_MONOTONIC EV_FEATURE_OS
202# else 248# else
203# define EV_USE_MONOTONIC 0 249# define EV_USE_MONOTONIC 0
204# endif 250# endif
205#endif 251#endif
206 252
… …
208# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 254# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
209#endif 255#endif
210 256
211#ifndef EV_USE_NANOSLEEP 257#ifndef EV_USE_NANOSLEEP
212# if _POSIX_C_SOURCE >= 199309L 258# if _POSIX_C_SOURCE >= 199309L
213# define EV_USE_NANOSLEEP 1 259# define EV_USE_NANOSLEEP EV_FEATURE_OS
214# else 260# else
215# define EV_USE_NANOSLEEP 0 261# define EV_USE_NANOSLEEP 0
216# endif 262# endif
217#endif 263#endif
218 264
219#ifndef EV_USE_SELECT 265#ifndef EV_USE_SELECT
220# define EV_USE_SELECT 1 266# define EV_USE_SELECT EV_FEATURE_BACKENDS
221#endif 267#endif
222 268
223#ifndef EV_USE_POLL 269#ifndef EV_USE_POLL
224# ifdef _WIN32 270# ifdef _WIN32
225# define EV_USE_POLL 0 271# define EV_USE_POLL 0
226# else 272# else
227# define EV_USE_POLL 1 273# define EV_USE_POLL EV_FEATURE_BACKENDS
228# endif 274# endif
229#endif 275#endif
230 276
231#ifndef EV_USE_EPOLL 277#ifndef EV_USE_EPOLL
232# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
233# define EV_USE_EPOLL 1 279# define EV_USE_EPOLL EV_FEATURE_BACKENDS
234# else 280# else
235# define EV_USE_EPOLL 0 281# define EV_USE_EPOLL 0
236# endif 282# endif
237#endif 283#endif
238 284
… …
244# define EV_USE_PORT 0 290# define EV_USE_PORT 0
245#endif 291#endif
246 292
247#ifndef EV_USE_INOTIFY 293#ifndef EV_USE_INOTIFY
248# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
249# define EV_USE_INOTIFY 1 295# define EV_USE_INOTIFY EV_FEATURE_OS
250# else 296# else
251# define EV_USE_INOTIFY 0 297# define EV_USE_INOTIFY 0
252# endif 298# endif
253#endif 299#endif
254 300
255#ifndef EV_PID_HASHSIZE 301#ifndef EV_PID_HASHSIZE
256# if EV_MINIMAL 302# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_PID_HASHSIZE 1
258# else
259# define EV_PID_HASHSIZE 16
260# endif
261#endif 303#endif
262 304
263#ifndef EV_INOTIFY_HASHSIZE 305#ifndef EV_INOTIFY_HASHSIZE
264# if EV_MINIMAL 306# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
265# define EV_INOTIFY_HASHSIZE 1
266# else
267# define EV_INOTIFY_HASHSIZE 16
268# endif
269#endif 307#endif
270 308
271#ifndef EV_USE_EVENTFD 309#ifndef EV_USE_EVENTFD
272# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
273# define EV_USE_EVENTFD 1 311# define EV_USE_EVENTFD EV_FEATURE_OS
274# else 312# else
275# define EV_USE_EVENTFD 0 313# define EV_USE_EVENTFD 0
276# endif 314# endif
277#endif 315#endif
278 316
279#ifndef EV_USE_SIGNALFD 317#ifndef EV_USE_SIGNALFD
280# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) 318# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
281# define EV_USE_SIGNALFD 1 319# define EV_USE_SIGNALFD EV_FEATURE_OS
282# else 320# else
283# define EV_USE_SIGNALFD 0 321# define EV_USE_SIGNALFD 0
284# endif 322# endif
285#endif 323#endif
286 324
… …
289# define EV_USE_4HEAP 1 327# define EV_USE_4HEAP 1
290# define EV_HEAP_CACHE_AT 1 328# define EV_HEAP_CACHE_AT 1
291#endif 329#endif
292 330
293#ifndef EV_VERIFY 331#ifndef EV_VERIFY
294# define EV_VERIFY !EV_MINIMAL 332# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
295#endif 333#endif
296 334
297#ifndef EV_USE_4HEAP 335#ifndef EV_USE_4HEAP
298# define EV_USE_4HEAP !EV_MINIMAL 336# define EV_USE_4HEAP EV_FEATURE_DATA
299#endif 337#endif
300 338
301#ifndef EV_HEAP_CACHE_AT 339#ifndef EV_HEAP_CACHE_AT
302# define EV_HEAP_CACHE_AT !EV_MINIMAL 340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
303#endif 341#endif
304 342
305/* 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, */
306/* which makes programs even slower. might work on other unices, too. */ 344/* which makes programs even slower. might work on other unices, too. */
307#if EV_USE_CLOCK_SYSCALL 345#if EV_USE_CLOCK_SYSCALL
… …
316# endif 354# endif
317#endif 355#endif
318 356
319/* 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 */
320 358
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
321#ifndef CLOCK_MONOTONIC 365#ifndef CLOCK_MONOTONIC
322# undef EV_USE_MONOTONIC 366# undef EV_USE_MONOTONIC
323# define EV_USE_MONOTONIC 0 367# define EV_USE_MONOTONIC 0
324#endif 368#endif
325 369
… …
332# undef EV_USE_INOTIFY 376# undef EV_USE_INOTIFY
333# define EV_USE_INOTIFY 0 377# define EV_USE_INOTIFY 0
334#endif 378#endif
335 379
336#if !EV_USE_NANOSLEEP 380#if !EV_USE_NANOSLEEP
337# ifndef _WIN32 381/* hp-ux has it in sys/time.h, which we unconditionally include above */
382# if !defined(_WIN32) && !defined(__hpux)
338# include <sys/select.h> 383# include <sys/select.h>
339# endif 384# endif
340#endif 385#endif
341 386
342#if EV_USE_INOTIFY 387#if EV_USE_INOTIFY
343# include <sys/utsname.h>
344# include <sys/statfs.h> 388# include <sys/statfs.h>
345# include <sys/inotify.h> 389# include <sys/inotify.h>
346/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 390/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
347# ifndef IN_DONT_FOLLOW 391# ifndef IN_DONT_FOLLOW
348# undef EV_USE_INOTIFY 392# undef EV_USE_INOTIFY
… …
359# include <stdint.h> 403# include <stdint.h>
360# ifndef EFD_NONBLOCK 404# ifndef EFD_NONBLOCK
361# define EFD_NONBLOCK O_NONBLOCK 405# define EFD_NONBLOCK O_NONBLOCK
362# endif 406# endif
363# ifndef EFD_CLOEXEC 407# ifndef EFD_CLOEXEC
408# ifdef O_CLOEXEC
364# define EFD_CLOEXEC O_CLOEXEC 409# define EFD_CLOEXEC O_CLOEXEC
410# else
411# define EFD_CLOEXEC 02000000
412# endif
365# endif 413# endif
366# ifdef __cplusplus 414EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
367extern "C" { 415#endif
416
417#if EV_USE_SIGNALFD
418/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
419# include <stdint.h>
420# ifndef SFD_NONBLOCK
421# define SFD_NONBLOCK O_NONBLOCK
368# endif 422# endif
369int eventfd (unsigned int initval, int flags); 423# ifndef SFD_CLOEXEC
370# ifdef __cplusplus 424# ifdef O_CLOEXEC
371} 425# define SFD_CLOEXEC O_CLOEXEC
426# else
427# define SFD_CLOEXEC 02000000
428# endif
372# endif 429# endif
373#endif 430EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
374 431
375#if EV_USE_SIGNALFD 432struct signalfd_siginfo
376# include <sys/signalfd.h> 433{
434 uint32_t ssi_signo;
435 char pad[128 - sizeof (uint32_t)];
436};
377#endif 437#endif
378 438
379/**/ 439/**/
380 440
381#if EV_VERIFY >= 3 441#if EV_VERIFY >= 3
382# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 442# define EV_FREQUENT_CHECK ev_verify (EV_A)
383#else 443#else
384# define EV_FREQUENT_CHECK do { } while (0) 444# define EV_FREQUENT_CHECK do { } while (0)
385#endif 445#endif
386 446
387/* 447/*
… …
394 */ 454 */
395#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 455#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
396 456
397#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 457#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
398#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 458#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
399/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ 459
460#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
461#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
400 462
401#if __GNUC__ >= 4 463#if __GNUC__ >= 4
402# define expect(expr,value) __builtin_expect ((expr),(value)) 464# define expect(expr,value) __builtin_expect ((expr),(value))
403# define noinline __attribute__ ((noinline)) 465# define noinline __attribute__ ((noinline))
404#else 466#else
… …
411 473
412#define expect_false(expr) expect ((expr) != 0, 0) 474#define expect_false(expr) expect ((expr) != 0, 0)
413#define expect_true(expr) expect ((expr) != 0, 1) 475#define expect_true(expr) expect ((expr) != 0, 1)
414#define inline_size static inline 476#define inline_size static inline
415 477
416#if EV_MINIMAL 478#if EV_FEATURE_CODE
479# define inline_speed static inline
480#else
417# define inline_speed static noinline 481# define inline_speed static noinline
418#else
419# define inline_speed static inline
420#endif 482#endif
421 483
422#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 484#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
423 485
424#if EV_MINPRI == EV_MAXPRI 486#if EV_MINPRI == EV_MAXPRI
… …
437#define ev_active(w) ((W)(w))->active 499#define ev_active(w) ((W)(w))->active
438#define ev_at(w) ((WT)(w))->at 500#define ev_at(w) ((WT)(w))->at
439 501
440#if EV_USE_REALTIME 502#if EV_USE_REALTIME
441/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 503/* sig_atomic_t is used to avoid per-thread variables or locking but still */
442/* giving it a reasonably high chance of working on typical architetcures */ 504/* giving it a reasonably high chance of working on typical architectures */
443static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 505static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
444#endif 506#endif
445 507
446#if EV_USE_MONOTONIC 508#if EV_USE_MONOTONIC
447static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 509static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
448#endif 510#endif
449 511
512#ifndef EV_FD_TO_WIN32_HANDLE
513# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
514#endif
515#ifndef EV_WIN32_HANDLE_TO_FD
516# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
517#endif
518#ifndef EV_WIN32_CLOSE_FD
519# define EV_WIN32_CLOSE_FD(fd) close (fd)
520#endif
521
450#ifdef _WIN32 522#ifdef _WIN32
451# include "ev_win32.c" 523# include "ev_win32.c"
452#endif 524#endif
453 525
454/*****************************************************************************/ 526/*****************************************************************************/
527
528#ifdef __linux
529# include <sys/utsname.h>
530#endif
531
532static unsigned int noinline
533ev_linux_version (void)
534{
535#ifdef __linux
536 unsigned int v = 0;
537 struct utsname buf;
538 int i;
539 char *p = buf.release;
540
541 if (uname (&buf))
542 return 0;
543
544 for (i = 3+1; --i; )
545 {
546 unsigned int c = 0;
547
548 for (;;)
549 {
550 if (*p >= '0' && *p <= '9')
551 c = c * 10 + *p++ - '0';
552 else
553 {
554 p += *p == '.';
555 break;
556 }
557 }
558
559 v = (v << 8) | c;
560 }
561
562 return v;
563#else
564 return 0;
565#endif
566}
567
568/*****************************************************************************/
569
570#if EV_AVOID_STDIO
571static void noinline
572ev_printerr (const char *msg)
573{
574 write (STDERR_FILENO, msg, strlen (msg));
575}
576#endif
455 577
456static void (*syserr_cb)(const char *msg); 578static void (*syserr_cb)(const char *msg);
457 579
458void 580void
459ev_set_syserr_cb (void (*cb)(const char *msg)) 581ev_set_syserr_cb (void (*cb)(const char *msg))
… …
469 591
470 if (syserr_cb) 592 if (syserr_cb)
471 syserr_cb (msg); 593 syserr_cb (msg);
472 else 594 else
473 { 595 {
596#if EV_AVOID_STDIO
597 ev_printerr (msg);
598 ev_printerr (": ");
599 ev_printerr (strerror (errno));
600 ev_printerr ("\n");
601#else
474 perror (msg); 602 perror (msg);
603#endif
475 abort (); 604 abort ();
476 } 605 }
477} 606}
478 607
479static void * 608static void *
480ev_realloc_emul (void *ptr, long size) 609ev_realloc_emul (void *ptr, long size)
481{ 610{
611#if __GLIBC__
612 return realloc (ptr, size);
613#else
482 /* some systems, notably openbsd and darwin, fail to properly 614 /* some systems, notably openbsd and darwin, fail to properly
483 * implement realloc (x, 0) (as required by both ansi c-98 and 615 * implement realloc (x, 0) (as required by both ansi c-89 and
484 * the single unix specification, so work around them here. 616 * the single unix specification, so work around them here.
485 */ 617 */
486 618
487 if (size) 619 if (size)
488 return realloc (ptr, size); 620 return realloc (ptr, size);
489 621
490 free (ptr); 622 free (ptr);
491 return 0; 623 return 0;
624#endif
492} 625}
493 626
494static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 627static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
495 628
496void 629void
… …
504{ 637{
505 ptr = alloc (ptr, size); 638 ptr = alloc (ptr, size);
506 639
507 if (!ptr && size) 640 if (!ptr && size)
508 { 641 {
642#if EV_AVOID_STDIO
643 ev_printerr ("(libev) memory allocation failed, aborting.\n");
644#else
509 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 645 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
646#endif
510 abort (); 647 abort ();
511 } 648 }
512 649
513 return ptr; 650 return ptr;
514} 651}
… …
530 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 667 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
531 unsigned char unused; 668 unsigned char unused;
532#if EV_USE_EPOLL 669#if EV_USE_EPOLL
533 unsigned int egen; /* generation counter to counter epoll bugs */ 670 unsigned int egen; /* generation counter to counter epoll bugs */
534#endif 671#endif
535#if EV_SELECT_IS_WINSOCKET 672#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
536 SOCKET handle; 673 SOCKET handle;
674#endif
675#if EV_USE_IOCP
676 OVERLAPPED or, ow;
537#endif 677#endif
538} ANFD; 678} ANFD;
539 679
540/* stores the pending event set for a given watcher */ 680/* stores the pending event set for a given watcher */
541typedef struct 681typedef struct
… …
596 736
597 static int ev_default_loop_ptr; 737 static int ev_default_loop_ptr;
598 738
599#endif 739#endif
600 740
601#if EV_MINIMAL < 2 741#if EV_FEATURE_API
602# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 742# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
603# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 743# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
604# define EV_INVOKE_PENDING invoke_cb (EV_A) 744# define EV_INVOKE_PENDING invoke_cb (EV_A)
605#else 745#else
606# define EV_RELEASE_CB (void)0 746# define EV_RELEASE_CB (void)0
607# define EV_ACQUIRE_CB (void)0 747# define EV_ACQUIRE_CB (void)0
608# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 748# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
609#endif 749#endif
610 750
611#define EVUNLOOP_RECURSE 0x80 751#define EVBREAK_RECURSE 0x80
612 752
613/*****************************************************************************/ 753/*****************************************************************************/
614 754
615#ifndef EV_HAVE_EV_TIME 755#ifndef EV_HAVE_EV_TIME
616ev_tstamp 756ev_tstamp
… …
660 if (delay > 0.) 800 if (delay > 0.)
661 { 801 {
662#if EV_USE_NANOSLEEP 802#if EV_USE_NANOSLEEP
663 struct timespec ts; 803 struct timespec ts;
664 804
665 ts.tv_sec = (time_t)delay; 805 EV_TS_SET (ts, delay);
666 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
667
668 nanosleep (&ts, 0); 806 nanosleep (&ts, 0);
669#elif defined(_WIN32) 807#elif defined(_WIN32)
670 Sleep ((unsigned long)(delay * 1e3)); 808 Sleep ((unsigned long)(delay * 1e3));
671#else 809#else
672 struct timeval tv; 810 struct timeval tv;
673 811
674 tv.tv_sec = (time_t)delay;
675 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
676
677 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 812 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
678 /* something not guaranteed by newer posix versions, but guaranteed */ 813 /* something not guaranteed by newer posix versions, but guaranteed */
679 /* by older ones */ 814 /* by older ones */
815 EV_TV_SET (tv, delay);
680 select (0, 0, 0, 0, &tv); 816 select (0, 0, 0, 0, &tv);
681#endif 817#endif
682 } 818 }
683} 819}
684 820
821inline_speed int
822ev_timeout_to_ms (ev_tstamp timeout)
823{
824 int ms = timeout * 1000. + .999999;
825
826 return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
827}
828
685/*****************************************************************************/ 829/*****************************************************************************/
686 830
687#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 831#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
688 832
689/* find a suitable new size for the given array, */ 833/* find a suitable new size for the given array, */
690/* hopefully by rounding to a ncie-to-malloc size */ 834/* hopefully by rounding to a nice-to-malloc size */
691inline_size int 835inline_size int
692array_nextsize (int elem, int cur, int cnt) 836array_nextsize (int elem, int cur, int cnt)
693{ 837{
694 int ncur = cur + 1; 838 int ncur = cur + 1;
695 839
… …
791} 935}
792 936
793/*****************************************************************************/ 937/*****************************************************************************/
794 938
795inline_speed void 939inline_speed void
796fd_event_nc (EV_P_ int fd, int revents) 940fd_event_nocheck (EV_P_ int fd, int revents)
797{ 941{
798 ANFD *anfd = anfds + fd; 942 ANFD *anfd = anfds + fd;
799 ev_io *w; 943 ev_io *w;
800 944
801 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 945 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
813fd_event (EV_P_ int fd, int revents) 957fd_event (EV_P_ int fd, int revents)
814{ 958{
815 ANFD *anfd = anfds + fd; 959 ANFD *anfd = anfds + fd;
816 960
817 if (expect_true (!anfd->reify)) 961 if (expect_true (!anfd->reify))
818 fd_event_nc (EV_A_ fd, revents); 962 fd_event_nocheck (EV_A_ fd, revents);
819} 963}
820 964
821void 965void
822ev_feed_fd_event (EV_P_ int fd, int revents) 966ev_feed_fd_event (EV_P_ int fd, int revents)
823{ 967{
824 if (fd >= 0 && fd < anfdmax) 968 if (fd >= 0 && fd < anfdmax)
825 fd_event_nc (EV_A_ fd, revents); 969 fd_event_nocheck (EV_A_ fd, revents);
826} 970}
827 971
828/* make sure the external fd watch events are in-sync */ 972/* make sure the external fd watch events are in-sync */
829/* with the kernel/libev internal state */ 973/* with the kernel/libev internal state */
830inline_size void 974inline_size void
831fd_reify (EV_P) 975fd_reify (EV_P)
832{ 976{
833 int i; 977 int i;
834 978
979#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
980 for (i = 0; i < fdchangecnt; ++i)
981 {
982 int fd = fdchanges [i];
983 ANFD *anfd = anfds + fd;
984
985 if (anfd->reify & EV__IOFDSET)
986 {
987 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
988
989 if (handle != anfd->handle)
990 {
991 unsigned long arg;
992
993 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
994
995 /* handle changed, but fd didn't - we need to do it in two steps */
996 backend_modify (EV_A_ fd, anfd->events, 0);
997 anfd->events = 0;
998 anfd->handle = handle;
999 }
1000 }
1001 }
1002#endif
1003
835 for (i = 0; i < fdchangecnt; ++i) 1004 for (i = 0; i < fdchangecnt; ++i)
836 { 1005 {
837 int fd = fdchanges [i]; 1006 int fd = fdchanges [i];
838 ANFD *anfd = anfds + fd; 1007 ANFD *anfd = anfds + fd;
839 ev_io *w; 1008 ev_io *w;
840 1009
841 unsigned char events = 0; 1010 unsigned char o_events = anfd->events;
1011 unsigned char o_reify = anfd->reify;
842 1012
843 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1013 anfd->reify = 0;
844 events |= (unsigned char)w->events;
845 1014
846#if EV_SELECT_IS_WINSOCKET 1015 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
847 if (events)
848 { 1016 {
849 unsigned long arg; 1017 anfd->events = 0;
850 #ifdef EV_FD_TO_WIN32_HANDLE 1018
851 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1019 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
852 #else 1020 anfd->events |= (unsigned char)w->events;
853 anfd->handle = _get_osfhandle (fd); 1021
854 #endif 1022 if (o_events != anfd->events)
855 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1023 o_reify = EV__IOFDSET; /* actually |= */
856 } 1024 }
857#endif
858 1025
859 { 1026 if (o_reify & EV__IOFDSET)
860 unsigned char o_events = anfd->events;
861 unsigned char o_reify = anfd->reify;
862
863 anfd->reify = 0;
864 anfd->events = events;
865
866 if (o_events != events || o_reify & EV__IOFDSET)
867 backend_modify (EV_A_ fd, o_events, events); 1027 backend_modify (EV_A_ fd, o_events, anfd->events);
868 }
869 } 1028 }
870 1029
871 fdchangecnt = 0; 1030 fdchangecnt = 0;
872} 1031}
873 1032
… …
897 ev_io_stop (EV_A_ w); 1056 ev_io_stop (EV_A_ w);
898 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1057 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
899 } 1058 }
900} 1059}
901 1060
902/* check whether the given fd is atcually valid, for error recovery */ 1061/* check whether the given fd is actually valid, for error recovery */
903inline_size int 1062inline_size int
904fd_valid (int fd) 1063fd_valid (int fd)
905{ 1064{
906#ifdef _WIN32 1065#ifdef _WIN32
907 return _get_osfhandle (fd) != -1; 1066 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
908#else 1067#else
909 return fcntl (fd, F_GETFD) != -1; 1068 return fcntl (fd, F_GETFD) != -1;
910#endif 1069#endif
911} 1070}
912 1071
… …
930 1089
931 for (fd = anfdmax; fd--; ) 1090 for (fd = anfdmax; fd--; )
932 if (anfds [fd].events) 1091 if (anfds [fd].events)
933 { 1092 {
934 fd_kill (EV_A_ fd); 1093 fd_kill (EV_A_ fd);
935 return; 1094 break;
936 } 1095 }
937} 1096}
938 1097
939/* usually called after fork if backend needs to re-arm all fds from scratch */ 1098/* usually called after fork if backend needs to re-arm all fds from scratch */
940static void noinline 1099static void noinline
… …
949 anfds [fd].emask = 0; 1108 anfds [fd].emask = 0;
950 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1109 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
951 } 1110 }
952} 1111}
953 1112
1113/* used to prepare libev internal fd's */
1114/* this is not fork-safe */
1115inline_speed void
1116fd_intern (int fd)
1117{
1118#ifdef _WIN32
1119 unsigned long arg = 1;
1120 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1121#else
1122 fcntl (fd, F_SETFD, FD_CLOEXEC);
1123 fcntl (fd, F_SETFL, O_NONBLOCK);
1124#endif
1125}
1126
954/*****************************************************************************/ 1127/*****************************************************************************/
955 1128
956/* 1129/*
957 * the heap functions want a real array index. array index 0 uis guaranteed to not 1130 * the heap functions want a real array index. array index 0 is guaranteed to not
958 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1131 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
959 * the branching factor of the d-tree. 1132 * the branching factor of the d-tree.
960 */ 1133 */
961 1134
962/* 1135/*
… …
1030 1203
1031 for (;;) 1204 for (;;)
1032 { 1205 {
1033 int c = k << 1; 1206 int c = k << 1;
1034 1207
1035 if (c > N + HEAP0 - 1) 1208 if (c >= N + HEAP0)
1036 break; 1209 break;
1037 1210
1038 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1211 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1039 ? 1 : 0; 1212 ? 1 : 0;
1040 1213
… …
1076 1249
1077/* move an element suitably so it is in a correct place */ 1250/* move an element suitably so it is in a correct place */
1078inline_size void 1251inline_size void
1079adjustheap (ANHE *heap, int N, int k) 1252adjustheap (ANHE *heap, int N, int k)
1080{ 1253{
1081 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1254 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1082 upheap (heap, k); 1255 upheap (heap, k);
1083 else 1256 else
1084 downheap (heap, N, k); 1257 downheap (heap, N, k);
1085} 1258}
1086 1259
… …
1099/*****************************************************************************/ 1272/*****************************************************************************/
1100 1273
1101/* associate signal watchers to a signal signal */ 1274/* associate signal watchers to a signal signal */
1102typedef struct 1275typedef struct
1103{ 1276{
1277 EV_ATOMIC_T pending;
1278#if EV_MULTIPLICITY
1279 EV_P;
1280#endif
1104 WL head; 1281 WL head;
1105 EV_ATOMIC_T gotsig;
1106} ANSIG; 1282} ANSIG;
1107 1283
1108static ANSIG *signals; 1284static ANSIG signals [EV_NSIG - 1];
1109static int signalmax;
1110
1111static EV_ATOMIC_T gotsig;
1112 1285
1113/*****************************************************************************/ 1286/*****************************************************************************/
1114 1287
1115/* used to prepare libev internal fd's */ 1288#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1116/* this is not fork-safe */
1117inline_speed void
1118fd_intern (int fd)
1119{
1120#ifdef _WIN32
1121 unsigned long arg = 1;
1122 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1123#else
1124 fcntl (fd, F_SETFD, FD_CLOEXEC);
1125 fcntl (fd, F_SETFL, O_NONBLOCK);
1126#endif
1127}
1128 1289
1129static void noinline 1290static void noinline
1130evpipe_init (EV_P) 1291evpipe_init (EV_P)
1131{ 1292{
1132 if (!ev_is_active (&pipe_w)) 1293 if (!ev_is_active (&pipe_w))
1133 { 1294 {
1134#if EV_USE_EVENTFD 1295# if EV_USE_EVENTFD
1135 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1296 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1136 if (evfd < 0 && errno == EINVAL) 1297 if (evfd < 0 && errno == EINVAL)
1137 evfd = eventfd (0, 0); 1298 evfd = eventfd (0, 0);
1138 1299
1139 if (evfd >= 0) 1300 if (evfd >= 0)
… …
1141 evpipe [0] = -1; 1302 evpipe [0] = -1;
1142 fd_intern (evfd); /* doing it twice doesn't hurt */ 1303 fd_intern (evfd); /* doing it twice doesn't hurt */
1143 ev_io_set (&pipe_w, evfd, EV_READ); 1304 ev_io_set (&pipe_w, evfd, EV_READ);
1144 } 1305 }
1145 else 1306 else
1146#endif 1307# endif
1147 { 1308 {
1148 while (pipe (evpipe)) 1309 while (pipe (evpipe))
1149 ev_syserr ("(libev) error creating signal/async pipe"); 1310 ev_syserr ("(libev) error creating signal/async pipe");
1150 1311
1151 fd_intern (evpipe [0]); 1312 fd_intern (evpipe [0]);
… …
1162evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1323evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1163{ 1324{
1164 if (!*flag) 1325 if (!*flag)
1165 { 1326 {
1166 int old_errno = errno; /* save errno because write might clobber it */ 1327 int old_errno = errno; /* save errno because write might clobber it */
1328 char dummy;
1167 1329
1168 *flag = 1; 1330 *flag = 1;
1169 1331
1170#if EV_USE_EVENTFD 1332#if EV_USE_EVENTFD
1171 if (evfd >= 0) 1333 if (evfd >= 0)
… …
1173 uint64_t counter = 1; 1335 uint64_t counter = 1;
1174 write (evfd, &counter, sizeof (uint64_t)); 1336 write (evfd, &counter, sizeof (uint64_t));
1175 } 1337 }
1176 else 1338 else
1177#endif 1339#endif
1340 /* win32 people keep sending patches that change this write() to send() */
1341 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1342 /* so when you think this write should be a send instead, please find out */
1343 /* where your send() is from - it's definitely not the microsoft send, and */
1344 /* tell me. thank you. */
1178 write (evpipe [1], &old_errno, 1); 1345 write (evpipe [1], &dummy, 1);
1179 1346
1180 errno = old_errno; 1347 errno = old_errno;
1181 } 1348 }
1182} 1349}
1183 1350
1184/* called whenever the libev signal pipe */ 1351/* called whenever the libev signal pipe */
1185/* got some events (signal, async) */ 1352/* got some events (signal, async) */
1186static void 1353static void
1187pipecb (EV_P_ ev_io *iow, int revents) 1354pipecb (EV_P_ ev_io *iow, int revents)
1188{ 1355{
1356 int i;
1357
1189#if EV_USE_EVENTFD 1358#if EV_USE_EVENTFD
1190 if (evfd >= 0) 1359 if (evfd >= 0)
1191 { 1360 {
1192 uint64_t counter; 1361 uint64_t counter;
1193 read (evfd, &counter, sizeof (uint64_t)); 1362 read (evfd, &counter, sizeof (uint64_t));
1194 } 1363 }
1195 else 1364 else
1196#endif 1365#endif
1197 { 1366 {
1198 char dummy; 1367 char dummy;
1368 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1199 read (evpipe [0], &dummy, 1); 1369 read (evpipe [0], &dummy, 1);
1200 } 1370 }
1201 1371
1202 if (gotsig && ev_is_default_loop (EV_A)) 1372#if EV_SIGNAL_ENABLE
1203 { 1373 if (sig_pending)
1204 int signum; 1374 {
1205 gotsig = 0; 1375 sig_pending = 0;
1206 1376
1207 for (signum = signalmax; signum--; ) 1377 for (i = EV_NSIG - 1; i--; )
1208 if (signals [signum].gotsig) 1378 if (expect_false (signals [i].pending))
1209 ev_feed_signal_event (EV_A_ signum + 1); 1379 ev_feed_signal_event (EV_A_ i + 1);
1210 } 1380 }
1381#endif
1211 1382
1212#if EV_ASYNC_ENABLE 1383#if EV_ASYNC_ENABLE
1213 if (gotasync) 1384 if (async_pending)
1214 { 1385 {
1215 int i; 1386 async_pending = 0;
1216 gotasync = 0;
1217 1387
1218 for (i = asynccnt; i--; ) 1388 for (i = asynccnt; i--; )
1219 if (asyncs [i]->sent) 1389 if (asyncs [i]->sent)
1220 { 1390 {
1221 asyncs [i]->sent = 0; 1391 asyncs [i]->sent = 0;
… …
1225#endif 1395#endif
1226} 1396}
1227 1397
1228/*****************************************************************************/ 1398/*****************************************************************************/
1229 1399
1400void
1401ev_feed_signal (int signum)
1402{
1403#if EV_MULTIPLICITY
1404 EV_P = signals [signum - 1].loop;
1405
1406 if (!EV_A)
1407 return;
1408#endif
1409
1410 signals [signum - 1].pending = 1;
1411 evpipe_write (EV_A_ &sig_pending);
1412}
1413
1230static void 1414static void
1231ev_sighandler (int signum) 1415ev_sighandler (int signum)
1232{ 1416{
1233#if EV_MULTIPLICITY
1234 struct ev_loop *loop = &default_loop_struct;
1235#endif
1236
1237#if _WIN32 1417#ifdef _WIN32
1238 signal (signum, ev_sighandler); 1418 signal (signum, ev_sighandler);
1239#endif 1419#endif
1240 1420
1241 signals [signum - 1].gotsig = 1; 1421 ev_feed_signal (signum);
1242 evpipe_write (EV_A_ &gotsig);
1243} 1422}
1244 1423
1245void noinline 1424void noinline
1246ev_feed_signal_event (EV_P_ int signum) 1425ev_feed_signal_event (EV_P_ int signum)
1247{ 1426{
1248 WL w; 1427 WL w;
1249 1428
1429 if (expect_false (signum <= 0 || signum > EV_NSIG))
1430 return;
1431
1432 --signum;
1433
1250#if EV_MULTIPLICITY 1434#if EV_MULTIPLICITY
1251 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1435 /* it is permissible to try to feed a signal to the wrong loop */
1252#endif 1436 /* or, likely more useful, feeding a signal nobody is waiting for */
1253 1437
1254 --signum; 1438 if (expect_false (signals [signum].loop != EV_A))
1255
1256 if (signum < 0 || signum >= signalmax)
1257 return; 1439 return;
1440#endif
1258 1441
1259 signals [signum].gotsig = 0; 1442 signals [signum].pending = 0;
1260 1443
1261 for (w = signals [signum].head; w; w = w->next) 1444 for (w = signals [signum].head; w; w = w->next)
1262 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1445 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1263} 1446}
1264 1447
1265#if EV_USE_SIGNALFD 1448#if EV_USE_SIGNALFD
1266static void 1449static void
1267sigfdcb (EV_P_ ev_io *iow, int revents) 1450sigfdcb (EV_P_ ev_io *iow, int revents)
1268{ 1451{
1269 struct signalfd_siginfo si[4], *sip; 1452 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1270 1453
1271 for (;;) 1454 for (;;)
1272 { 1455 {
1273 ssize_t res = read (sigfd, si, sizeof (si)); 1456 ssize_t res = read (sigfd, si, sizeof (si));
1274 1457
… …
1280 break; 1463 break;
1281 } 1464 }
1282} 1465}
1283#endif 1466#endif
1284 1467
1468#endif
1469
1285/*****************************************************************************/ 1470/*****************************************************************************/
1286 1471
1472#if EV_CHILD_ENABLE
1287static WL childs [EV_PID_HASHSIZE]; 1473static WL childs [EV_PID_HASHSIZE];
1288
1289#ifndef _WIN32
1290 1474
1291static ev_signal childev; 1475static ev_signal childev;
1292 1476
1293#ifndef WIFCONTINUED 1477#ifndef WIFCONTINUED
1294# define WIFCONTINUED(status) 0 1478# define WIFCONTINUED(status) 0
… …
1299child_reap (EV_P_ int chain, int pid, int status) 1483child_reap (EV_P_ int chain, int pid, int status)
1300{ 1484{
1301 ev_child *w; 1485 ev_child *w;
1302 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1486 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1303 1487
1304 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1488 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1305 { 1489 {
1306 if ((w->pid == pid || !w->pid) 1490 if ((w->pid == pid || !w->pid)
1307 && (!traced || (w->flags & 1))) 1491 && (!traced || (w->flags & 1)))
1308 { 1492 {
1309 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1493 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1334 /* make sure we are called again until all children have been reaped */ 1518 /* make sure we are called again until all children have been reaped */
1335 /* we need to do it this way so that the callback gets called before we continue */ 1519 /* we need to do it this way so that the callback gets called before we continue */
1336 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1520 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1337 1521
1338 child_reap (EV_A_ pid, pid, status); 1522 child_reap (EV_A_ pid, pid, status);
1339 if (EV_PID_HASHSIZE > 1) 1523 if ((EV_PID_HASHSIZE) > 1)
1340 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1524 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1341} 1525}
1342 1526
1343#endif 1527#endif
1344 1528
1345/*****************************************************************************/ 1529/*****************************************************************************/
1346 1530
1531#if EV_USE_IOCP
1532# include "ev_iocp.c"
1533#endif
1347#if EV_USE_PORT 1534#if EV_USE_PORT
1348# include "ev_port.c" 1535# include "ev_port.c"
1349#endif 1536#endif
1350#if EV_USE_KQUEUE 1537#if EV_USE_KQUEUE
1351# include "ev_kqueue.c" 1538# include "ev_kqueue.c"
… …
1411#ifdef __APPLE__ 1598#ifdef __APPLE__
1412 /* only select works correctly on that "unix-certified" platform */ 1599 /* only select works correctly on that "unix-certified" platform */
1413 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1600 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1414 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1601 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1415#endif 1602#endif
1603#ifdef __FreeBSD__
1604 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1605#endif
1416 1606
1417 return flags; 1607 return flags;
1418} 1608}
1419 1609
1420unsigned int 1610unsigned int
1421ev_embeddable_backends (void) 1611ev_embeddable_backends (void)
1422{ 1612{
1423 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1613 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1424 1614
1425 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1615 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1426 /* please fix it and tell me how to detect the fix */ 1616 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1427 flags &= ~EVBACKEND_EPOLL; 1617 flags &= ~EVBACKEND_EPOLL;
1428 1618
1429 return flags; 1619 return flags;
1430} 1620}
1431 1621
1432unsigned int 1622unsigned int
1433ev_backend (EV_P) 1623ev_backend (EV_P)
1434{ 1624{
1435 return backend; 1625 return backend;
1436} 1626}
1437 1627
1438#if EV_MINIMAL < 2 1628#if EV_FEATURE_API
1439unsigned int 1629unsigned int
1440ev_loop_count (EV_P) 1630ev_iteration (EV_P)
1441{ 1631{
1442 return loop_count; 1632 return loop_count;
1443} 1633}
1444 1634
1445unsigned int 1635unsigned int
1446ev_loop_depth (EV_P) 1636ev_depth (EV_P)
1447{ 1637{
1448 return loop_depth; 1638 return loop_depth;
1449} 1639}
1450 1640
1451void 1641void
… …
1488static void noinline 1678static void noinline
1489loop_init (EV_P_ unsigned int flags) 1679loop_init (EV_P_ unsigned int flags)
1490{ 1680{
1491 if (!backend) 1681 if (!backend)
1492 { 1682 {
1683 origflags = flags;
1684
1493#if EV_USE_REALTIME 1685#if EV_USE_REALTIME
1494 if (!have_realtime) 1686 if (!have_realtime)
1495 { 1687 {
1496 struct timespec ts; 1688 struct timespec ts;
1497 1689
… …
1508 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1700 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1509 have_monotonic = 1; 1701 have_monotonic = 1;
1510 } 1702 }
1511#endif 1703#endif
1512 1704
1705 /* pid check not overridable via env */
1706#ifndef _WIN32
1707 if (flags & EVFLAG_FORKCHECK)
1708 curpid = getpid ();
1709#endif
1710
1711 if (!(flags & EVFLAG_NOENV)
1712 && !enable_secure ()
1713 && getenv ("LIBEV_FLAGS"))
1714 flags = atoi (getenv ("LIBEV_FLAGS"));
1715
1513 ev_rt_now = ev_time (); 1716 ev_rt_now = ev_time ();
1514 mn_now = get_clock (); 1717 mn_now = get_clock ();
1515 now_floor = mn_now; 1718 now_floor = mn_now;
1516 rtmn_diff = ev_rt_now - mn_now; 1719 rtmn_diff = ev_rt_now - mn_now;
1517#if EV_MINIMAL < 2 1720#if EV_FEATURE_API
1518 invoke_cb = ev_invoke_pending; 1721 invoke_cb = ev_invoke_pending;
1519#endif 1722#endif
1520 1723
1521 io_blocktime = 0.; 1724 io_blocktime = 0.;
1522 timeout_blocktime = 0.; 1725 timeout_blocktime = 0.;
1523 backend = 0; 1726 backend = 0;
1524 backend_fd = -1; 1727 backend_fd = -1;
1525 gotasync = 0; 1728 sig_pending = 0;
1729#if EV_ASYNC_ENABLE
1730 async_pending = 0;
1731#endif
1526#if EV_USE_INOTIFY 1732#if EV_USE_INOTIFY
1527 fs_fd = -2; 1733 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1528#endif 1734#endif
1529#if EV_USE_SIGNALFD 1735#if EV_USE_SIGNALFD
1530 sigfd = -2; 1736 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1531#endif 1737#endif
1532 1738
1533 /* pid check not overridable via env */
1534#ifndef _WIN32
1535 if (flags & EVFLAG_FORKCHECK)
1536 curpid = getpid ();
1537#endif
1538
1539 if (!(flags & EVFLAG_NOENV) 1739 if (!(flags & EVBACKEND_MASK))
1540 && !enable_secure ()
1541 && getenv ("LIBEV_FLAGS"))
1542 flags = atoi (getenv ("LIBEV_FLAGS"));
1543
1544 if (!(flags & 0x0000ffffU))
1545 flags |= ev_recommended_backends (); 1740 flags |= ev_recommended_backends ();
1546 1741
1742#if EV_USE_IOCP
1743 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1744#endif
1547#if EV_USE_PORT 1745#if EV_USE_PORT
1548 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1746 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1549#endif 1747#endif
1550#if EV_USE_KQUEUE 1748#if EV_USE_KQUEUE
1551 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1749 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1560 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1758 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1561#endif 1759#endif
1562 1760
1563 ev_prepare_init (&pending_w, pendingcb); 1761 ev_prepare_init (&pending_w, pendingcb);
1564 1762
1763#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1565 ev_init (&pipe_w, pipecb); 1764 ev_init (&pipe_w, pipecb);
1566 ev_set_priority (&pipe_w, EV_MAXPRI); 1765 ev_set_priority (&pipe_w, EV_MAXPRI);
1766#endif
1567 } 1767 }
1568} 1768}
1569 1769
1570/* free up a loop structure */ 1770/* free up a loop structure */
1571static void noinline 1771void
1572loop_destroy (EV_P) 1772ev_loop_destroy (EV_P)
1573{ 1773{
1574 int i; 1774 int i;
1775
1776#if EV_MULTIPLICITY
1777 /* mimic free (0) */
1778 if (!EV_A)
1779 return;
1780#endif
1781
1782#if EV_CLEANUP_ENABLE
1783 /* queue cleanup watchers (and execute them) */
1784 if (expect_false (cleanupcnt))
1785 {
1786 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1787 EV_INVOKE_PENDING;
1788 }
1789#endif
1790
1791#if EV_CHILD_ENABLE
1792 if (ev_is_active (&childev))
1793 {
1794 ev_ref (EV_A); /* child watcher */
1795 ev_signal_stop (EV_A_ &childev);
1796 }
1797#endif
1575 1798
1576 if (ev_is_active (&pipe_w)) 1799 if (ev_is_active (&pipe_w))
1577 { 1800 {
1578 /*ev_ref (EV_A);*/ 1801 /*ev_ref (EV_A);*/
1579 /*ev_io_stop (EV_A_ &pipe_w);*/ 1802 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1583 close (evfd); 1806 close (evfd);
1584#endif 1807#endif
1585 1808
1586 if (evpipe [0] >= 0) 1809 if (evpipe [0] >= 0)
1587 { 1810 {
1588 close (evpipe [0]); 1811 EV_WIN32_CLOSE_FD (evpipe [0]);
1589 close (evpipe [1]); 1812 EV_WIN32_CLOSE_FD (evpipe [1]);
1590 } 1813 }
1591 } 1814 }
1592 1815
1593#if EV_USE_SIGNALFD 1816#if EV_USE_SIGNALFD
1594 if (ev_is_active (&sigfd_w)) 1817 if (ev_is_active (&sigfd_w))
1595 {
1596 /*ev_ref (EV_A);*/
1597 /*ev_io_stop (EV_A_ &sigfd_w);*/
1598
1599 close (sigfd); 1818 close (sigfd);
1600 }
1601#endif 1819#endif
1602 1820
1603#if EV_USE_INOTIFY 1821#if EV_USE_INOTIFY
1604 if (fs_fd >= 0) 1822 if (fs_fd >= 0)
1605 close (fs_fd); 1823 close (fs_fd);
1606#endif 1824#endif
1607 1825
1608 if (backend_fd >= 0) 1826 if (backend_fd >= 0)
1609 close (backend_fd); 1827 close (backend_fd);
1610 1828
1829#if EV_USE_IOCP
1830 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1831#endif
1611#if EV_USE_PORT 1832#if EV_USE_PORT
1612 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1833 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1613#endif 1834#endif
1614#if EV_USE_KQUEUE 1835#if EV_USE_KQUEUE
1615 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1836 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1630#if EV_IDLE_ENABLE 1851#if EV_IDLE_ENABLE
1631 array_free (idle, [i]); 1852 array_free (idle, [i]);
1632#endif 1853#endif
1633 } 1854 }
1634 1855
1635 ev_free (anfds); anfdmax = 0; 1856 ev_free (anfds); anfds = 0; anfdmax = 0;
1636 1857
1637 /* have to use the microsoft-never-gets-it-right macro */ 1858 /* have to use the microsoft-never-gets-it-right macro */
1638 array_free (rfeed, EMPTY); 1859 array_free (rfeed, EMPTY);
1639 array_free (fdchange, EMPTY); 1860 array_free (fdchange, EMPTY);
1640 array_free (timer, EMPTY); 1861 array_free (timer, EMPTY);
… …
1642 array_free (periodic, EMPTY); 1863 array_free (periodic, EMPTY);
1643#endif 1864#endif
1644#if EV_FORK_ENABLE 1865#if EV_FORK_ENABLE
1645 array_free (fork, EMPTY); 1866 array_free (fork, EMPTY);
1646#endif 1867#endif
1868#if EV_CLEANUP_ENABLE
1869 array_free (cleanup, EMPTY);
1870#endif
1647 array_free (prepare, EMPTY); 1871 array_free (prepare, EMPTY);
1648 array_free (check, EMPTY); 1872 array_free (check, EMPTY);
1649#if EV_ASYNC_ENABLE 1873#if EV_ASYNC_ENABLE
1650 array_free (async, EMPTY); 1874 array_free (async, EMPTY);
1651#endif 1875#endif
1652 1876
1653 backend = 0; 1877 backend = 0;
1878
1879#if EV_MULTIPLICITY
1880 if (ev_is_default_loop (EV_A))
1881#endif
1882 ev_default_loop_ptr = 0;
1883#if EV_MULTIPLICITY
1884 else
1885 ev_free (EV_A);
1886#endif
1654} 1887}
1655 1888
1656#if EV_USE_INOTIFY 1889#if EV_USE_INOTIFY
1657inline_size void infy_fork (EV_P); 1890inline_size void infy_fork (EV_P);
1658#endif 1891#endif
… …
1675 1908
1676 if (ev_is_active (&pipe_w)) 1909 if (ev_is_active (&pipe_w))
1677 { 1910 {
1678 /* this "locks" the handlers against writing to the pipe */ 1911 /* this "locks" the handlers against writing to the pipe */
1679 /* while we modify the fd vars */ 1912 /* while we modify the fd vars */
1680 gotsig = 1; 1913 sig_pending = 1;
1681#if EV_ASYNC_ENABLE 1914#if EV_ASYNC_ENABLE
1682 gotasync = 1; 1915 async_pending = 1;
1683#endif 1916#endif
1684 1917
1685 ev_ref (EV_A); 1918 ev_ref (EV_A);
1686 ev_io_stop (EV_A_ &pipe_w); 1919 ev_io_stop (EV_A_ &pipe_w);
1687 1920
… …
1690 close (evfd); 1923 close (evfd);
1691#endif 1924#endif
1692 1925
1693 if (evpipe [0] >= 0) 1926 if (evpipe [0] >= 0)
1694 { 1927 {
1695 close (evpipe [0]); 1928 EV_WIN32_CLOSE_FD (evpipe [0]);
1696 close (evpipe [1]); 1929 EV_WIN32_CLOSE_FD (evpipe [1]);
1697 } 1930 }
1698 1931
1932#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1699 evpipe_init (EV_A); 1933 evpipe_init (EV_A);
1700 /* now iterate over everything, in case we missed something */ 1934 /* now iterate over everything, in case we missed something */
1701 pipecb (EV_A_ &pipe_w, EV_READ); 1935 pipecb (EV_A_ &pipe_w, EV_READ);
1936#endif
1702 } 1937 }
1703 1938
1704 postfork = 0; 1939 postfork = 0;
1705} 1940}
1706 1941
1707#if EV_MULTIPLICITY 1942#if EV_MULTIPLICITY
1708 1943
1709struct ev_loop * 1944struct ev_loop *
1710ev_loop_new (unsigned int flags) 1945ev_loop_new (unsigned int flags)
1711{ 1946{
1712 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1947 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1713 1948
1714 memset (loop, 0, sizeof (struct ev_loop)); 1949 memset (EV_A, 0, sizeof (struct ev_loop));
1715 loop_init (EV_A_ flags); 1950 loop_init (EV_A_ flags);
1716 1951
1717 if (ev_backend (EV_A)) 1952 if (ev_backend (EV_A))
1718 return loop; 1953 return EV_A;
1719 1954
1955 ev_free (EV_A);
1720 return 0; 1956 return 0;
1721} 1957}
1722 1958
1723void
1724ev_loop_destroy (EV_P)
1725{
1726 loop_destroy (EV_A);
1727 ev_free (loop);
1728}
1729
1730void
1731ev_loop_fork (EV_P)
1732{
1733 postfork = 1; /* must be in line with ev_default_fork */
1734}
1735#endif /* multiplicity */ 1959#endif /* multiplicity */
1736 1960
1737#if EV_VERIFY 1961#if EV_VERIFY
1738static void noinline 1962static void noinline
1739verify_watcher (EV_P_ W w) 1963verify_watcher (EV_P_ W w)
… …
1768 verify_watcher (EV_A_ ws [cnt]); 1992 verify_watcher (EV_A_ ws [cnt]);
1769 } 1993 }
1770} 1994}
1771#endif 1995#endif
1772 1996
1773#if EV_MINIMAL < 2 1997#if EV_FEATURE_API
1774void 1998void
1775ev_loop_verify (EV_P) 1999ev_verify (EV_P)
1776{ 2000{
1777#if EV_VERIFY 2001#if EV_VERIFY
1778 int i; 2002 int i;
1779 WL w; 2003 WL w;
1780 2004
… …
1814#if EV_FORK_ENABLE 2038#if EV_FORK_ENABLE
1815 assert (forkmax >= forkcnt); 2039 assert (forkmax >= forkcnt);
1816 array_verify (EV_A_ (W *)forks, forkcnt); 2040 array_verify (EV_A_ (W *)forks, forkcnt);
1817#endif 2041#endif
1818 2042
2043#if EV_CLEANUP_ENABLE
2044 assert (cleanupmax >= cleanupcnt);
2045 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2046#endif
2047
1819#if EV_ASYNC_ENABLE 2048#if EV_ASYNC_ENABLE
1820 assert (asyncmax >= asynccnt); 2049 assert (asyncmax >= asynccnt);
1821 array_verify (EV_A_ (W *)asyncs, asynccnt); 2050 array_verify (EV_A_ (W *)asyncs, asynccnt);
1822#endif 2051#endif
1823 2052
2053#if EV_PREPARE_ENABLE
1824 assert (preparemax >= preparecnt); 2054 assert (preparemax >= preparecnt);
1825 array_verify (EV_A_ (W *)prepares, preparecnt); 2055 array_verify (EV_A_ (W *)prepares, preparecnt);
2056#endif
1826 2057
2058#if EV_CHECK_ENABLE
1827 assert (checkmax >= checkcnt); 2059 assert (checkmax >= checkcnt);
1828 array_verify (EV_A_ (W *)checks, checkcnt); 2060 array_verify (EV_A_ (W *)checks, checkcnt);
2061#endif
1829 2062
1830# if 0 2063# if 0
2064#if EV_CHILD_ENABLE
1831 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2065 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1832 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2066 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2067#endif
1833# endif 2068# endif
1834#endif 2069#endif
1835} 2070}
1836#endif 2071#endif
1837 2072
1838#if EV_MULTIPLICITY 2073#if EV_MULTIPLICITY
1839struct ev_loop * 2074struct ev_loop *
1840ev_default_loop_init (unsigned int flags)
1841#else 2075#else
1842int 2076int
2077#endif
1843ev_default_loop (unsigned int flags) 2078ev_default_loop (unsigned int flags)
1844#endif
1845{ 2079{
1846 if (!ev_default_loop_ptr) 2080 if (!ev_default_loop_ptr)
1847 { 2081 {
1848#if EV_MULTIPLICITY 2082#if EV_MULTIPLICITY
1849 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2083 EV_P = ev_default_loop_ptr = &default_loop_struct;
1850#else 2084#else
1851 ev_default_loop_ptr = 1; 2085 ev_default_loop_ptr = 1;
1852#endif 2086#endif
1853 2087
1854 loop_init (EV_A_ flags); 2088 loop_init (EV_A_ flags);
1855 2089
1856 if (ev_backend (EV_A)) 2090 if (ev_backend (EV_A))
1857 { 2091 {
1858#ifndef _WIN32 2092#if EV_CHILD_ENABLE
1859 ev_signal_init (&childev, childcb, SIGCHLD); 2093 ev_signal_init (&childev, childcb, SIGCHLD);
1860 ev_set_priority (&childev, EV_MAXPRI); 2094 ev_set_priority (&childev, EV_MAXPRI);
1861 ev_signal_start (EV_A_ &childev); 2095 ev_signal_start (EV_A_ &childev);
1862 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2096 ev_unref (EV_A); /* child watcher should not keep loop alive */
1863#endif 2097#endif
… …
1868 2102
1869 return ev_default_loop_ptr; 2103 return ev_default_loop_ptr;
1870} 2104}
1871 2105
1872void 2106void
1873ev_default_destroy (void) 2107ev_loop_fork (EV_P)
1874{ 2108{
1875#if EV_MULTIPLICITY
1876 struct ev_loop *loop = ev_default_loop_ptr;
1877#endif
1878
1879 ev_default_loop_ptr = 0;
1880
1881#ifndef _WIN32
1882 ev_ref (EV_A); /* child watcher */
1883 ev_signal_stop (EV_A_ &childev);
1884#endif
1885
1886 loop_destroy (EV_A);
1887}
1888
1889void
1890ev_default_fork (void)
1891{
1892#if EV_MULTIPLICITY
1893 struct ev_loop *loop = ev_default_loop_ptr;
1894#endif
1895
1896 postfork = 1; /* must be in line with ev_loop_fork */ 2109 postfork = 1; /* must be in line with ev_default_fork */
1897} 2110}
1898 2111
1899/*****************************************************************************/ 2112/*****************************************************************************/
1900 2113
1901void 2114void
… …
1923 2136
1924 for (pri = NUMPRI; pri--; ) 2137 for (pri = NUMPRI; pri--; )
1925 while (pendingcnt [pri]) 2138 while (pendingcnt [pri])
1926 { 2139 {
1927 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2140 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1928
1929 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1930 /* ^ this is no longer true, as pending_w could be here */
1931 2141
1932 p->w->pending = 0; 2142 p->w->pending = 0;
1933 EV_CB_INVOKE (p->w, p->events); 2143 EV_CB_INVOKE (p->w, p->events);
1934 EV_FREQUENT_CHECK; 2144 EV_FREQUENT_CHECK;
1935 } 2145 }
… …
1992 EV_FREQUENT_CHECK; 2202 EV_FREQUENT_CHECK;
1993 feed_reverse (EV_A_ (W)w); 2203 feed_reverse (EV_A_ (W)w);
1994 } 2204 }
1995 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2205 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1996 2206
1997 feed_reverse_done (EV_A_ EV_TIMEOUT); 2207 feed_reverse_done (EV_A_ EV_TIMER);
1998 } 2208 }
1999} 2209}
2000 2210
2001#if EV_PERIODIC_ENABLE 2211#if EV_PERIODIC_ENABLE
2212
2213inline_speed void
2214periodic_recalc (EV_P_ ev_periodic *w)
2215{
2216 /* TODO: use slow but potentially more correct incremental algo, */
2217 /* also do not rely on ceil */
2218 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2219}
2220
2002/* make periodics pending */ 2221/* make periodics pending */
2003inline_size void 2222inline_size void
2004periodics_reify (EV_P) 2223periodics_reify (EV_P)
2005{ 2224{
2006 EV_FREQUENT_CHECK; 2225 EV_FREQUENT_CHECK;
… …
2025 ANHE_at_cache (periodics [HEAP0]); 2244 ANHE_at_cache (periodics [HEAP0]);
2026 downheap (periodics, periodiccnt, HEAP0); 2245 downheap (periodics, periodiccnt, HEAP0);
2027 } 2246 }
2028 else if (w->interval) 2247 else if (w->interval)
2029 { 2248 {
2030 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2249 periodic_recalc (EV_A_ w);
2250
2031 /* if next trigger time is not sufficiently in the future, put it there */ 2251 /* if next trigger time is not sufficiently in the future, put it there */
2032 /* this might happen because of floating point inexactness */ 2252 /* this might happen because of floating point inexactness */
2033 if (ev_at (w) - ev_rt_now < TIME_EPSILON) 2253 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2034 { 2254 {
2035 ev_at (w) += w->interval; 2255 ev_at (w) += w->interval;
… …
2055 feed_reverse_done (EV_A_ EV_PERIODIC); 2275 feed_reverse_done (EV_A_ EV_PERIODIC);
2056 } 2276 }
2057} 2277}
2058 2278
2059/* simply recalculate all periodics */ 2279/* simply recalculate all periodics */
2060/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2280/* TODO: maybe ensure that at least one event happens when jumping forward? */
2061static void noinline 2281static void noinline
2062periodics_reschedule (EV_P) 2282periodics_reschedule (EV_P)
2063{ 2283{
2064 int i; 2284 int i;
2065 2285
… …
2069 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2289 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2070 2290
2071 if (w->reschedule_cb) 2291 if (w->reschedule_cb)
2072 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2292 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2073 else if (w->interval) 2293 else if (w->interval)
2074 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2294 periodic_recalc (EV_A_ w);
2075 2295
2076 ANHE_at_cache (periodics [i]); 2296 ANHE_at_cache (periodics [i]);
2077 } 2297 }
2078 2298
2079 reheap (periodics, periodiccnt); 2299 reheap (periodics, periodiccnt);
… …
2093 ANHE_at_cache (*he); 2313 ANHE_at_cache (*he);
2094 } 2314 }
2095} 2315}
2096 2316
2097/* fetch new monotonic and realtime times from the kernel */ 2317/* fetch new monotonic and realtime times from the kernel */
2098/* also detetc if there was a timejump, and act accordingly */ 2318/* also detect if there was a timejump, and act accordingly */
2099inline_speed void 2319inline_speed void
2100time_update (EV_P_ ev_tstamp max_block) 2320time_update (EV_P_ ev_tstamp max_block)
2101{ 2321{
2102#if EV_USE_MONOTONIC 2322#if EV_USE_MONOTONIC
2103 if (expect_true (have_monotonic)) 2323 if (expect_true (have_monotonic))
… …
2161 mn_now = ev_rt_now; 2381 mn_now = ev_rt_now;
2162 } 2382 }
2163} 2383}
2164 2384
2165void 2385void
2166ev_loop (EV_P_ int flags) 2386ev_run (EV_P_ int flags)
2167{ 2387{
2168#if EV_MINIMAL < 2 2388#if EV_FEATURE_API
2169 ++loop_depth; 2389 ++loop_depth;
2170#endif 2390#endif
2171 2391
2172 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2392 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2173 2393
2174 loop_done = EVUNLOOP_CANCEL; 2394 loop_done = EVBREAK_CANCEL;
2175 2395
2176 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2396 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2177 2397
2178 do 2398 do
2179 { 2399 {
2180#if EV_VERIFY >= 2 2400#if EV_VERIFY >= 2
2181 ev_loop_verify (EV_A); 2401 ev_verify (EV_A);
2182#endif 2402#endif
2183 2403
2184#ifndef _WIN32 2404#ifndef _WIN32
2185 if (expect_false (curpid)) /* penalise the forking check even more */ 2405 if (expect_false (curpid)) /* penalise the forking check even more */
2186 if (expect_false (getpid () != curpid)) 2406 if (expect_false (getpid () != curpid))
… …
2198 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2418 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2199 EV_INVOKE_PENDING; 2419 EV_INVOKE_PENDING;
2200 } 2420 }
2201#endif 2421#endif
2202 2422
2423#if EV_PREPARE_ENABLE
2203 /* queue prepare watchers (and execute them) */ 2424 /* queue prepare watchers (and execute them) */
2204 if (expect_false (preparecnt)) 2425 if (expect_false (preparecnt))
2205 { 2426 {
2206 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2427 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2207 EV_INVOKE_PENDING; 2428 EV_INVOKE_PENDING;
2208 } 2429 }
2430#endif
2209 2431
2210 if (expect_false (loop_done)) 2432 if (expect_false (loop_done))
2211 break; 2433 break;
2212 2434
2213 /* we might have forked, so reify kernel state if necessary */ 2435 /* we might have forked, so reify kernel state if necessary */
… …
2220 /* calculate blocking time */ 2442 /* calculate blocking time */
2221 { 2443 {
2222 ev_tstamp waittime = 0.; 2444 ev_tstamp waittime = 0.;
2223 ev_tstamp sleeptime = 0.; 2445 ev_tstamp sleeptime = 0.;
2224 2446
2447 /* remember old timestamp for io_blocktime calculation */
2448 ev_tstamp prev_mn_now = mn_now;
2449
2450 /* update time to cancel out callback processing overhead */
2451 time_update (EV_A_ 1e100);
2452
2225 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2453 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2226 { 2454 {
2227 /* remember old timestamp for io_blocktime calculation */
2228 ev_tstamp prev_mn_now = mn_now;
2229
2230 /* update time to cancel out callback processing overhead */
2231 time_update (EV_A_ 1e100);
2232
2233 waittime = MAX_BLOCKTIME; 2455 waittime = MAX_BLOCKTIME;
2234 2456
2235 if (timercnt) 2457 if (timercnt)
2236 { 2458 {
2237 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2459 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
2264 waittime -= sleeptime; 2486 waittime -= sleeptime;
2265 } 2487 }
2266 } 2488 }
2267 } 2489 }
2268 2490
2269#if EV_MINIMAL < 2 2491#if EV_FEATURE_API
2270 ++loop_count; 2492 ++loop_count;
2271#endif 2493#endif
2272 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2494 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2273 backend_poll (EV_A_ waittime); 2495 backend_poll (EV_A_ waittime);
2274 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2496 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2275 2497
2276 /* update ev_rt_now, do magic */ 2498 /* update ev_rt_now, do magic */
2277 time_update (EV_A_ waittime + sleeptime); 2499 time_update (EV_A_ waittime + sleeptime);
2278 } 2500 }
2279 2501
… …
2286#if EV_IDLE_ENABLE 2508#if EV_IDLE_ENABLE
2287 /* queue idle watchers unless other events are pending */ 2509 /* queue idle watchers unless other events are pending */
2288 idle_reify (EV_A); 2510 idle_reify (EV_A);
2289#endif 2511#endif
2290 2512
2513#if EV_CHECK_ENABLE
2291 /* queue check watchers, to be executed first */ 2514 /* queue check watchers, to be executed first */
2292 if (expect_false (checkcnt)) 2515 if (expect_false (checkcnt))
2293 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2516 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2517#endif
2294 2518
2295 EV_INVOKE_PENDING; 2519 EV_INVOKE_PENDING;
2296 } 2520 }
2297 while (expect_true ( 2521 while (expect_true (
2298 activecnt 2522 activecnt
2299 && !loop_done 2523 && !loop_done
2300 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2524 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2301 )); 2525 ));
2302 2526
2303 if (loop_done == EVUNLOOP_ONE) 2527 if (loop_done == EVBREAK_ONE)
2304 loop_done = EVUNLOOP_CANCEL; 2528 loop_done = EVBREAK_CANCEL;
2305 2529
2306#if EV_MINIMAL < 2 2530#if EV_FEATURE_API
2307 --loop_depth; 2531 --loop_depth;
2308#endif 2532#endif
2309} 2533}
2310 2534
2311void 2535void
2312ev_unloop (EV_P_ int how) 2536ev_break (EV_P_ int how)
2313{ 2537{
2314 loop_done = how; 2538 loop_done = how;
2315} 2539}
2316 2540
2317void 2541void
… …
2364inline_size void 2588inline_size void
2365wlist_del (WL *head, WL elem) 2589wlist_del (WL *head, WL elem)
2366{ 2590{
2367 while (*head) 2591 while (*head)
2368 { 2592 {
2369 if (*head == elem) 2593 if (expect_true (*head == elem))
2370 { 2594 {
2371 *head = elem->next; 2595 *head = elem->next;
2372 return; 2596 break;
2373 } 2597 }
2374 2598
2375 head = &(*head)->next; 2599 head = &(*head)->next;
2376 } 2600 }
2377} 2601}
… …
2437 2661
2438 if (expect_false (ev_is_active (w))) 2662 if (expect_false (ev_is_active (w)))
2439 return; 2663 return;
2440 2664
2441 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2665 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2442 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2666 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2443 2667
2444 EV_FREQUENT_CHECK; 2668 EV_FREQUENT_CHECK;
2445 2669
2446 ev_start (EV_A_ (W)w, 1); 2670 ev_start (EV_A_ (W)w, 1);
2447 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2671 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2465 EV_FREQUENT_CHECK; 2689 EV_FREQUENT_CHECK;
2466 2690
2467 wlist_del (&anfds[w->fd].head, (WL)w); 2691 wlist_del (&anfds[w->fd].head, (WL)w);
2468 ev_stop (EV_A_ (W)w); 2692 ev_stop (EV_A_ (W)w);
2469 2693
2470 fd_change (EV_A_ w->fd, 1); 2694 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2471 2695
2472 EV_FREQUENT_CHECK; 2696 EV_FREQUENT_CHECK;
2473} 2697}
2474 2698
2475void noinline 2699void noinline
… …
2517 timers [active] = timers [timercnt + HEAP0]; 2741 timers [active] = timers [timercnt + HEAP0];
2518 adjustheap (timers, timercnt, active); 2742 adjustheap (timers, timercnt, active);
2519 } 2743 }
2520 } 2744 }
2521 2745
2522 EV_FREQUENT_CHECK;
2523
2524 ev_at (w) -= mn_now; 2746 ev_at (w) -= mn_now;
2525 2747
2526 ev_stop (EV_A_ (W)w); 2748 ev_stop (EV_A_ (W)w);
2749
2750 EV_FREQUENT_CHECK;
2527} 2751}
2528 2752
2529void noinline 2753void noinline
2530ev_timer_again (EV_P_ ev_timer *w) 2754ev_timer_again (EV_P_ ev_timer *w)
2531{ 2755{
… …
2567 if (w->reschedule_cb) 2791 if (w->reschedule_cb)
2568 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2792 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2569 else if (w->interval) 2793 else if (w->interval)
2570 { 2794 {
2571 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2795 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2572 /* this formula differs from the one in periodic_reify because we do not always round up */ 2796 periodic_recalc (EV_A_ w);
2573 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2574 } 2797 }
2575 else 2798 else
2576 ev_at (w) = w->offset; 2799 ev_at (w) = w->offset;
2577 2800
2578 EV_FREQUENT_CHECK; 2801 EV_FREQUENT_CHECK;
… …
2610 periodics [active] = periodics [periodiccnt + HEAP0]; 2833 periodics [active] = periodics [periodiccnt + HEAP0];
2611 adjustheap (periodics, periodiccnt, active); 2834 adjustheap (periodics, periodiccnt, active);
2612 } 2835 }
2613 } 2836 }
2614 2837
2615 EV_FREQUENT_CHECK;
2616
2617 ev_stop (EV_A_ (W)w); 2838 ev_stop (EV_A_ (W)w);
2839
2840 EV_FREQUENT_CHECK;
2618} 2841}
2619 2842
2620void noinline 2843void noinline
2621ev_periodic_again (EV_P_ ev_periodic *w) 2844ev_periodic_again (EV_P_ ev_periodic *w)
2622{ 2845{
… …
2628 2851
2629#ifndef SA_RESTART 2852#ifndef SA_RESTART
2630# define SA_RESTART 0 2853# define SA_RESTART 0
2631#endif 2854#endif
2632 2855
2856#if EV_SIGNAL_ENABLE
2857
2633void noinline 2858void noinline
2634ev_signal_start (EV_P_ ev_signal *w) 2859ev_signal_start (EV_P_ ev_signal *w)
2635{ 2860{
2636#if EV_MULTIPLICITY
2637 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2638#endif
2639 if (expect_false (ev_is_active (w))) 2861 if (expect_false (ev_is_active (w)))
2640 return; 2862 return;
2641 2863
2642 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 2864 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2865
2866#if EV_MULTIPLICITY
2867 assert (("libev: a signal must not be attached to two different loops",
2868 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2869
2870 signals [w->signum - 1].loop = EV_A;
2871#endif
2643 2872
2644 EV_FREQUENT_CHECK; 2873 EV_FREQUENT_CHECK;
2645 2874
2646#if EV_USE_SIGNALFD 2875#if EV_USE_SIGNALFD
2647 if (sigfd == -2) 2876 if (sigfd == -2)
… …
2669 sigaddset (&sigfd_set, w->signum); 2898 sigaddset (&sigfd_set, w->signum);
2670 sigprocmask (SIG_BLOCK, &sigfd_set, 0); 2899 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2671 2900
2672 signalfd (sigfd, &sigfd_set, 0); 2901 signalfd (sigfd, &sigfd_set, 0);
2673 } 2902 }
2674 else
2675#endif
2676 evpipe_init (EV_A);
2677
2678 {
2679#ifndef _WIN32
2680 sigset_t full, prev;
2681 sigfillset (&full);
2682 sigprocmask (SIG_SETMASK, &full, &prev);
2683#endif
2684
2685 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2686
2687#ifndef _WIN32
2688# if EV_USE_SIGNALFD
2689 if (sigfd < 0)/*TODO*/
2690# endif 2903#endif
2691 sigdelset (&prev, w->signum);
2692 sigprocmask (SIG_SETMASK, &prev, 0);
2693#endif
2694 }
2695 2904
2696 ev_start (EV_A_ (W)w, 1); 2905 ev_start (EV_A_ (W)w, 1);
2697 wlist_add (&signals [w->signum - 1].head, (WL)w); 2906 wlist_add (&signals [w->signum - 1].head, (WL)w);
2698 2907
2699 if (!((WL)w)->next) 2908 if (!((WL)w)->next)
2700 {
2701#if _WIN32
2702 signal (w->signum, ev_sighandler);
2703#else
2704# if EV_USE_SIGNALFD 2909# if EV_USE_SIGNALFD
2705 if (sigfd < 0) /*TODO*/ 2910 if (sigfd < 0) /*TODO*/
2706# endif 2911# endif
2707 { 2912 {
2913# ifdef _WIN32
2914 evpipe_init (EV_A);
2915
2916 signal (w->signum, ev_sighandler);
2917# else
2708 struct sigaction sa = { }; 2918 struct sigaction sa;
2919
2920 evpipe_init (EV_A);
2921
2709 sa.sa_handler = ev_sighandler; 2922 sa.sa_handler = ev_sighandler;
2710 sigfillset (&sa.sa_mask); 2923 sigfillset (&sa.sa_mask);
2711 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2924 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2712 sigaction (w->signum, &sa, 0); 2925 sigaction (w->signum, &sa, 0);
2926
2927 if (origflags & EVFLAG_NOSIGMASK)
2928 {
2929 sigemptyset (&sa.sa_mask);
2930 sigaddset (&sa.sa_mask, w->signum);
2931 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2713 } 2932 }
2714#endif 2933#endif
2715 } 2934 }
2716 2935
2717 EV_FREQUENT_CHECK; 2936 EV_FREQUENT_CHECK;
2718} 2937}
2719 2938
2720void noinline 2939void noinline
… …
2728 2947
2729 wlist_del (&signals [w->signum - 1].head, (WL)w); 2948 wlist_del (&signals [w->signum - 1].head, (WL)w);
2730 ev_stop (EV_A_ (W)w); 2949 ev_stop (EV_A_ (W)w);
2731 2950
2732 if (!signals [w->signum - 1].head) 2951 if (!signals [w->signum - 1].head)
2952 {
2953#if EV_MULTIPLICITY
2954 signals [w->signum - 1].loop = 0; /* unattach from signal */
2955#endif
2733#if EV_USE_SIGNALFD 2956#if EV_USE_SIGNALFD
2734 if (sigfd >= 0) 2957 if (sigfd >= 0)
2735 { 2958 {
2736 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D 2959 sigset_t ss;
2960
2961 sigemptyset (&ss);
2962 sigaddset (&ss, w->signum);
2737 sigdelset (&sigfd_set, w->signum); 2963 sigdelset (&sigfd_set, w->signum);
2964
2738 signalfd (sigfd, &sigfd_set, 0); 2965 signalfd (sigfd, &sigfd_set, 0);
2739 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D 2966 sigprocmask (SIG_UNBLOCK, &ss, 0);
2740 /*TODO: maybe unblock signal? */
2741 } 2967 }
2742 else 2968 else
2743#endif 2969#endif
2744 signal (w->signum, SIG_DFL); 2970 signal (w->signum, SIG_DFL);
2971 }
2745 2972
2746 EV_FREQUENT_CHECK; 2973 EV_FREQUENT_CHECK;
2747} 2974}
2975
2976#endif
2977
2978#if EV_CHILD_ENABLE
2748 2979
2749void 2980void
2750ev_child_start (EV_P_ ev_child *w) 2981ev_child_start (EV_P_ ev_child *w)
2751{ 2982{
2752#if EV_MULTIPLICITY 2983#if EV_MULTIPLICITY
… …
2756 return; 2987 return;
2757 2988
2758 EV_FREQUENT_CHECK; 2989 EV_FREQUENT_CHECK;
2759 2990
2760 ev_start (EV_A_ (W)w, 1); 2991 ev_start (EV_A_ (W)w, 1);
2761 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2992 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2762 2993
2763 EV_FREQUENT_CHECK; 2994 EV_FREQUENT_CHECK;
2764} 2995}
2765 2996
2766void 2997void
… …
2770 if (expect_false (!ev_is_active (w))) 3001 if (expect_false (!ev_is_active (w)))
2771 return; 3002 return;
2772 3003
2773 EV_FREQUENT_CHECK; 3004 EV_FREQUENT_CHECK;
2774 3005
2775 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3006 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2776 ev_stop (EV_A_ (W)w); 3007 ev_stop (EV_A_ (W)w);
2777 3008
2778 EV_FREQUENT_CHECK; 3009 EV_FREQUENT_CHECK;
2779} 3010}
3011
3012#endif
2780 3013
2781#if EV_STAT_ENABLE 3014#if EV_STAT_ENABLE
2782 3015
2783# ifdef _WIN32 3016# ifdef _WIN32
2784# undef lstat 3017# undef lstat
… …
2790#define MIN_STAT_INTERVAL 0.1074891 3023#define MIN_STAT_INTERVAL 0.1074891
2791 3024
2792static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3025static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2793 3026
2794#if EV_USE_INOTIFY 3027#if EV_USE_INOTIFY
2795# define EV_INOTIFY_BUFSIZE 8192 3028
3029/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3030# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2796 3031
2797static void noinline 3032static void noinline
2798infy_add (EV_P_ ev_stat *w) 3033infy_add (EV_P_ ev_stat *w)
2799{ 3034{
2800 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); 3035 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);
2801 3036
2802 if (w->wd < 0) 3037 if (w->wd >= 0)
3038 {
3039 struct statfs sfs;
3040
3041 /* now local changes will be tracked by inotify, but remote changes won't */
3042 /* unless the filesystem is known to be local, we therefore still poll */
3043 /* also do poll on <2.6.25, but with normal frequency */
3044
3045 if (!fs_2625)
3046 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3047 else if (!statfs (w->path, &sfs)
3048 && (sfs.f_type == 0x1373 /* devfs */
3049 || sfs.f_type == 0xEF53 /* ext2/3 */
3050 || sfs.f_type == 0x3153464a /* jfs */
3051 || sfs.f_type == 0x52654973 /* reiser3 */
3052 || sfs.f_type == 0x01021994 /* tempfs */
3053 || sfs.f_type == 0x58465342 /* xfs */))
3054 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3055 else
3056 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2803 { 3057 }
3058 else
3059 {
3060 /* can't use inotify, continue to stat */
2804 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3061 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2805 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2806 3062
2807 /* monitor some parent directory for speedup hints */ 3063 /* if path is not there, monitor some parent directory for speedup hints */
2808 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3064 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2809 /* but an efficiency issue only */ 3065 /* but an efficiency issue only */
2810 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3066 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2811 { 3067 {
2812 char path [4096]; 3068 char path [4096];
… …
2822 if (!pend || pend == path) 3078 if (!pend || pend == path)
2823 break; 3079 break;
2824 3080
2825 *pend = 0; 3081 *pend = 0;
2826 w->wd = inotify_add_watch (fs_fd, path, mask); 3082 w->wd = inotify_add_watch (fs_fd, path, mask);
2827 } 3083 }
2828 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3084 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2829 } 3085 }
2830 } 3086 }
2831 3087
2832 if (w->wd >= 0) 3088 if (w->wd >= 0)
2833 {
2834 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3089 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2835 3090
2836 /* now local changes will be tracked by inotify, but remote changes won't */ 3091 /* now re-arm timer, if required */
2837 /* unless the filesystem it known to be local, we therefore still poll */ 3092 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2838 /* also do poll on <2.6.25, but with normal frequency */
2839 struct statfs sfs;
2840
2841 if (fs_2625 && !statfs (w->path, &sfs))
2842 if (sfs.f_type == 0x1373 /* devfs */
2843 || sfs.f_type == 0xEF53 /* ext2/3 */
2844 || sfs.f_type == 0x3153464a /* jfs */
2845 || sfs.f_type == 0x52654973 /* reiser3 */
2846 || sfs.f_type == 0x01021994 /* tempfs */
2847 || sfs.f_type == 0x58465342 /* xfs */)
2848 return;
2849
2850 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2851 ev_timer_again (EV_A_ &w->timer); 3093 ev_timer_again (EV_A_ &w->timer);
2852 } 3094 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2853} 3095}
2854 3096
2855static void noinline 3097static void noinline
2856infy_del (EV_P_ ev_stat *w) 3098infy_del (EV_P_ ev_stat *w)
2857{ 3099{
… …
2860 3102
2861 if (wd < 0) 3103 if (wd < 0)
2862 return; 3104 return;
2863 3105
2864 w->wd = -2; 3106 w->wd = -2;
2865 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3107 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2866 wlist_del (&fs_hash [slot].head, (WL)w); 3108 wlist_del (&fs_hash [slot].head, (WL)w);
2867 3109
2868 /* remove this watcher, if others are watching it, they will rearm */ 3110 /* remove this watcher, if others are watching it, they will rearm */
2869 inotify_rm_watch (fs_fd, wd); 3111 inotify_rm_watch (fs_fd, wd);
2870} 3112}
… …
2872static void noinline 3114static void noinline
2873infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3115infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2874{ 3116{
2875 if (slot < 0) 3117 if (slot < 0)
2876 /* overflow, need to check for all hash slots */ 3118 /* overflow, need to check for all hash slots */
2877 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3119 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2878 infy_wd (EV_A_ slot, wd, ev); 3120 infy_wd (EV_A_ slot, wd, ev);
2879 else 3121 else
2880 { 3122 {
2881 WL w_; 3123 WL w_;
2882 3124
2883 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3125 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2884 { 3126 {
2885 ev_stat *w = (ev_stat *)w_; 3127 ev_stat *w = (ev_stat *)w_;
2886 w_ = w_->next; /* lets us remove this watcher and all before it */ 3128 w_ = w_->next; /* lets us remove this watcher and all before it */
2887 3129
2888 if (w->wd == wd || wd == -1) 3130 if (w->wd == wd || wd == -1)
2889 { 3131 {
2890 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3132 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2891 { 3133 {
2892 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3134 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2893 w->wd = -1; 3135 w->wd = -1;
2894 infy_add (EV_A_ w); /* re-add, no matter what */ 3136 infy_add (EV_A_ w); /* re-add, no matter what */
2895 } 3137 }
2896 3138
2897 stat_timer_cb (EV_A_ &w->timer, 0); 3139 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2902 3144
2903static void 3145static void
2904infy_cb (EV_P_ ev_io *w, int revents) 3146infy_cb (EV_P_ ev_io *w, int revents)
2905{ 3147{
2906 char buf [EV_INOTIFY_BUFSIZE]; 3148 char buf [EV_INOTIFY_BUFSIZE];
2907 struct inotify_event *ev = (struct inotify_event *)buf;
2908 int ofs; 3149 int ofs;
2909 int len = read (fs_fd, buf, sizeof (buf)); 3150 int len = read (fs_fd, buf, sizeof (buf));
2910 3151
2911 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3152 for (ofs = 0; ofs < len; )
3153 {
3154 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2912 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3155 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3156 ofs += sizeof (struct inotify_event) + ev->len;
3157 }
2913} 3158}
2914 3159
2915inline_size void 3160inline_size void
2916check_2625 (EV_P) 3161ev_check_2625 (EV_P)
2917{ 3162{
2918 /* kernels < 2.6.25 are borked 3163 /* kernels < 2.6.25 are borked
2919 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3164 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2920 */ 3165 */
2921 struct utsname buf; 3166 if (ev_linux_version () < 0x020619)
2922 int major, minor, micro;
2923
2924 if (uname (&buf))
2925 return; 3167 return;
2926 3168
2927 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2928 return;
2929
2930 if (major < 2
2931 || (major == 2 && minor < 6)
2932 || (major == 2 && minor == 6 && micro < 25))
2933 return;
2934
2935 fs_2625 = 1; 3169 fs_2625 = 1;
3170}
3171
3172inline_size int
3173infy_newfd (void)
3174{
3175#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3176 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3177 if (fd >= 0)
3178 return fd;
3179#endif
3180 return inotify_init ();
2936} 3181}
2937 3182
2938inline_size void 3183inline_size void
2939infy_init (EV_P) 3184infy_init (EV_P)
2940{ 3185{
2941 if (fs_fd != -2) 3186 if (fs_fd != -2)
2942 return; 3187 return;
2943 3188
2944 fs_fd = -1; 3189 fs_fd = -1;
2945 3190
2946 check_2625 (EV_A); 3191 ev_check_2625 (EV_A);
2947 3192
2948 fs_fd = inotify_init (); 3193 fs_fd = infy_newfd ();
2949 3194
2950 if (fs_fd >= 0) 3195 if (fs_fd >= 0)
2951 { 3196 {
3197 fd_intern (fs_fd);
2952 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3198 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2953 ev_set_priority (&fs_w, EV_MAXPRI); 3199 ev_set_priority (&fs_w, EV_MAXPRI);
2954 ev_io_start (EV_A_ &fs_w); 3200 ev_io_start (EV_A_ &fs_w);
3201 ev_unref (EV_A);
2955 } 3202 }
2956} 3203}
2957 3204
2958inline_size void 3205inline_size void
2959infy_fork (EV_P) 3206infy_fork (EV_P)
… …
2961 int slot; 3208 int slot;
2962 3209
2963 if (fs_fd < 0) 3210 if (fs_fd < 0)
2964 return; 3211 return;
2965 3212
3213 ev_ref (EV_A);
3214 ev_io_stop (EV_A_ &fs_w);
2966 close (fs_fd); 3215 close (fs_fd);
2967 fs_fd = inotify_init (); 3216 fs_fd = infy_newfd ();
2968 3217
3218 if (fs_fd >= 0)
3219 {
3220 fd_intern (fs_fd);
3221 ev_io_set (&fs_w, fs_fd, EV_READ);
3222 ev_io_start (EV_A_ &fs_w);
3223 ev_unref (EV_A);
3224 }
3225
2969 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3226 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2970 { 3227 {
2971 WL w_ = fs_hash [slot].head; 3228 WL w_ = fs_hash [slot].head;
2972 fs_hash [slot].head = 0; 3229 fs_hash [slot].head = 0;
2973 3230
2974 while (w_) 3231 while (w_)
… …
2979 w->wd = -1; 3236 w->wd = -1;
2980 3237
2981 if (fs_fd >= 0) 3238 if (fs_fd >= 0)
2982 infy_add (EV_A_ w); /* re-add, no matter what */ 3239 infy_add (EV_A_ w); /* re-add, no matter what */
2983 else 3240 else
3241 {
3242 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3243 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2984 ev_timer_again (EV_A_ &w->timer); 3244 ev_timer_again (EV_A_ &w->timer);
3245 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3246 }
2985 } 3247 }
2986 } 3248 }
2987} 3249}
2988 3250
2989#endif 3251#endif
… …
3006static void noinline 3268static void noinline
3007stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3269stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3008{ 3270{
3009 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3271 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3010 3272
3011 /* we copy this here each the time so that */ 3273 ev_statdata prev = w->attr;
3012 /* prev has the old value when the callback gets invoked */
3013 w->prev = w->attr;
3014 ev_stat_stat (EV_A_ w); 3274 ev_stat_stat (EV_A_ w);
3015 3275
3016 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3276 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3017 if ( 3277 if (
3018 w->prev.st_dev != w->attr.st_dev 3278 prev.st_dev != w->attr.st_dev
3019 || w->prev.st_ino != w->attr.st_ino 3279 || prev.st_ino != w->attr.st_ino
3020 || w->prev.st_mode != w->attr.st_mode 3280 || prev.st_mode != w->attr.st_mode
3021 || w->prev.st_nlink != w->attr.st_nlink 3281 || prev.st_nlink != w->attr.st_nlink
3022 || w->prev.st_uid != w->attr.st_uid 3282 || prev.st_uid != w->attr.st_uid
3023 || w->prev.st_gid != w->attr.st_gid 3283 || prev.st_gid != w->attr.st_gid
3024 || w->prev.st_rdev != w->attr.st_rdev 3284 || prev.st_rdev != w->attr.st_rdev
3025 || w->prev.st_size != w->attr.st_size 3285 || prev.st_size != w->attr.st_size
3026 || w->prev.st_atime != w->attr.st_atime 3286 || prev.st_atime != w->attr.st_atime
3027 || w->prev.st_mtime != w->attr.st_mtime 3287 || prev.st_mtime != w->attr.st_mtime
3028 || w->prev.st_ctime != w->attr.st_ctime 3288 || prev.st_ctime != w->attr.st_ctime
3029 ) { 3289 ) {
3290 /* we only update w->prev on actual differences */
3291 /* in case we test more often than invoke the callback, */
3292 /* to ensure that prev is always different to attr */
3293 w->prev = prev;
3294
3030 #if EV_USE_INOTIFY 3295 #if EV_USE_INOTIFY
3031 if (fs_fd >= 0) 3296 if (fs_fd >= 0)
3032 { 3297 {
3033 infy_del (EV_A_ w); 3298 infy_del (EV_A_ w);
3034 infy_add (EV_A_ w); 3299 infy_add (EV_A_ w);
… …
3059 3324
3060 if (fs_fd >= 0) 3325 if (fs_fd >= 0)
3061 infy_add (EV_A_ w); 3326 infy_add (EV_A_ w);
3062 else 3327 else
3063#endif 3328#endif
3329 {
3064 ev_timer_again (EV_A_ &w->timer); 3330 ev_timer_again (EV_A_ &w->timer);
3331 ev_unref (EV_A);
3332 }
3065 3333
3066 ev_start (EV_A_ (W)w, 1); 3334 ev_start (EV_A_ (W)w, 1);
3067 3335
3068 EV_FREQUENT_CHECK; 3336 EV_FREQUENT_CHECK;
3069} 3337}
… …
3078 EV_FREQUENT_CHECK; 3346 EV_FREQUENT_CHECK;
3079 3347
3080#if EV_USE_INOTIFY 3348#if EV_USE_INOTIFY
3081 infy_del (EV_A_ w); 3349 infy_del (EV_A_ w);
3082#endif 3350#endif
3351
3352 if (ev_is_active (&w->timer))
3353 {
3354 ev_ref (EV_A);
3083 ev_timer_stop (EV_A_ &w->timer); 3355 ev_timer_stop (EV_A_ &w->timer);
3356 }
3084 3357
3085 ev_stop (EV_A_ (W)w); 3358 ev_stop (EV_A_ (W)w);
3086 3359
3087 EV_FREQUENT_CHECK; 3360 EV_FREQUENT_CHECK;
3088} 3361}
… …
3133 3406
3134 EV_FREQUENT_CHECK; 3407 EV_FREQUENT_CHECK;
3135} 3408}
3136#endif 3409#endif
3137 3410
3411#if EV_PREPARE_ENABLE
3138void 3412void
3139ev_prepare_start (EV_P_ ev_prepare *w) 3413ev_prepare_start (EV_P_ ev_prepare *w)
3140{ 3414{
3141 if (expect_false (ev_is_active (w))) 3415 if (expect_false (ev_is_active (w)))
3142 return; 3416 return;
… …
3168 3442
3169 ev_stop (EV_A_ (W)w); 3443 ev_stop (EV_A_ (W)w);
3170 3444
3171 EV_FREQUENT_CHECK; 3445 EV_FREQUENT_CHECK;
3172} 3446}
3447#endif
3173 3448
3449#if EV_CHECK_ENABLE
3174void 3450void
3175ev_check_start (EV_P_ ev_check *w) 3451ev_check_start (EV_P_ ev_check *w)
3176{ 3452{
3177 if (expect_false (ev_is_active (w))) 3453 if (expect_false (ev_is_active (w)))
3178 return; 3454 return;
… …
3204 3480
3205 ev_stop (EV_A_ (W)w); 3481 ev_stop (EV_A_ (W)w);
3206 3482
3207 EV_FREQUENT_CHECK; 3483 EV_FREQUENT_CHECK;
3208} 3484}
3485#endif
3209 3486
3210#if EV_EMBED_ENABLE 3487#if EV_EMBED_ENABLE
3211void noinline 3488void noinline
3212ev_embed_sweep (EV_P_ ev_embed *w) 3489ev_embed_sweep (EV_P_ ev_embed *w)
3213{ 3490{
3214 ev_loop (w->other, EVLOOP_NONBLOCK); 3491 ev_run (w->other, EVRUN_NOWAIT);
3215} 3492}
3216 3493
3217static void 3494static void
3218embed_io_cb (EV_P_ ev_io *io, int revents) 3495embed_io_cb (EV_P_ ev_io *io, int revents)
3219{ 3496{
3220 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3497 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3221 3498
3222 if (ev_cb (w)) 3499 if (ev_cb (w))
3223 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3500 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3224 else 3501 else
3225 ev_loop (w->other, EVLOOP_NONBLOCK); 3502 ev_run (w->other, EVRUN_NOWAIT);
3226} 3503}
3227 3504
3228static void 3505static void
3229embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3506embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3230{ 3507{
3231 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3508 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3232 3509
3233 { 3510 {
3234 struct ev_loop *loop = w->other; 3511 EV_P = w->other;
3235 3512
3236 while (fdchangecnt) 3513 while (fdchangecnt)
3237 { 3514 {
3238 fd_reify (EV_A); 3515 fd_reify (EV_A);
3239 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3516 ev_run (EV_A_ EVRUN_NOWAIT);
3240 } 3517 }
3241 } 3518 }
3242} 3519}
3243 3520
3244static void 3521static void
… …
3247 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3524 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3248 3525
3249 ev_embed_stop (EV_A_ w); 3526 ev_embed_stop (EV_A_ w);
3250 3527
3251 { 3528 {
3252 struct ev_loop *loop = w->other; 3529 EV_P = w->other;
3253 3530
3254 ev_loop_fork (EV_A); 3531 ev_loop_fork (EV_A);
3255 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3532 ev_run (EV_A_ EVRUN_NOWAIT);
3256 } 3533 }
3257 3534
3258 ev_embed_start (EV_A_ w); 3535 ev_embed_start (EV_A_ w);
3259} 3536}
3260 3537
… …
3271{ 3548{
3272 if (expect_false (ev_is_active (w))) 3549 if (expect_false (ev_is_active (w)))
3273 return; 3550 return;
3274 3551
3275 { 3552 {
3276 struct ev_loop *loop = w->other; 3553 EV_P = w->other;
3277 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3554 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3278 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3555 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3279 } 3556 }
3280 3557
3281 EV_FREQUENT_CHECK; 3558 EV_FREQUENT_CHECK;
… …
3308 3585
3309 ev_io_stop (EV_A_ &w->io); 3586 ev_io_stop (EV_A_ &w->io);
3310 ev_prepare_stop (EV_A_ &w->prepare); 3587 ev_prepare_stop (EV_A_ &w->prepare);
3311 ev_fork_stop (EV_A_ &w->fork); 3588 ev_fork_stop (EV_A_ &w->fork);
3312 3589
3590 ev_stop (EV_A_ (W)w);
3591
3313 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
3314} 3593}
3315#endif 3594#endif
3316 3595
3317#if EV_FORK_ENABLE 3596#if EV_FORK_ENABLE
… …
3350 3629
3351 EV_FREQUENT_CHECK; 3630 EV_FREQUENT_CHECK;
3352} 3631}
3353#endif 3632#endif
3354 3633
3355#if EV_ASYNC_ENABLE 3634#if EV_CLEANUP_ENABLE
3356void 3635void
3357ev_async_start (EV_P_ ev_async *w) 3636ev_cleanup_start (EV_P_ ev_cleanup *w)
3358{ 3637{
3359 if (expect_false (ev_is_active (w))) 3638 if (expect_false (ev_is_active (w)))
3360 return; 3639 return;
3640
3641 EV_FREQUENT_CHECK;
3642
3643 ev_start (EV_A_ (W)w, ++cleanupcnt);
3644 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3645 cleanups [cleanupcnt - 1] = w;
3646
3647 /* cleanup watchers should never keep a refcount on the loop */
3648 ev_unref (EV_A);
3649 EV_FREQUENT_CHECK;
3650}
3651
3652void
3653ev_cleanup_stop (EV_P_ ev_cleanup *w)
3654{
3655 clear_pending (EV_A_ (W)w);
3656 if (expect_false (!ev_is_active (w)))
3657 return;
3658
3659 EV_FREQUENT_CHECK;
3660 ev_ref (EV_A);
3661
3662 {
3663 int active = ev_active (w);
3664
3665 cleanups [active - 1] = cleanups [--cleanupcnt];
3666 ev_active (cleanups [active - 1]) = active;
3667 }
3668
3669 ev_stop (EV_A_ (W)w);
3670
3671 EV_FREQUENT_CHECK;
3672}
3673#endif
3674
3675#if EV_ASYNC_ENABLE
3676void
3677ev_async_start (EV_P_ ev_async *w)
3678{
3679 if (expect_false (ev_is_active (w)))
3680 return;
3681
3682 w->sent = 0;
3361 3683
3362 evpipe_init (EV_A); 3684 evpipe_init (EV_A);
3363 3685
3364 EV_FREQUENT_CHECK; 3686 EV_FREQUENT_CHECK;
3365 3687
… …
3393 3715
3394void 3716void
3395ev_async_send (EV_P_ ev_async *w) 3717ev_async_send (EV_P_ ev_async *w)
3396{ 3718{
3397 w->sent = 1; 3719 w->sent = 1;
3398 evpipe_write (EV_A_ &gotasync); 3720 evpipe_write (EV_A_ &async_pending);
3399} 3721}
3400#endif 3722#endif
3401 3723
3402/*****************************************************************************/ 3724/*****************************************************************************/
3403 3725
… …
3443{ 3765{
3444 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3766 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3445 3767
3446 if (expect_false (!once)) 3768 if (expect_false (!once))
3447 { 3769 {
3448 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3770 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3449 return; 3771 return;
3450 } 3772 }
3451 3773
3452 once->cb = cb; 3774 once->cb = cb;
3453 once->arg = arg; 3775 once->arg = arg;
… …
3540 if (types & EV_ASYNC) 3862 if (types & EV_ASYNC)
3541 for (i = asynccnt; i--; ) 3863 for (i = asynccnt; i--; )
3542 cb (EV_A_ EV_ASYNC, asyncs [i]); 3864 cb (EV_A_ EV_ASYNC, asyncs [i]);
3543#endif 3865#endif
3544 3866
3867#if EV_PREPARE_ENABLE
3545 if (types & EV_PREPARE) 3868 if (types & EV_PREPARE)
3546 for (i = preparecnt; i--; ) 3869 for (i = preparecnt; i--; )
3547#if EV_EMBED_ENABLE 3870# if EV_EMBED_ENABLE
3548 if (ev_cb (prepares [i]) != embed_prepare_cb) 3871 if (ev_cb (prepares [i]) != embed_prepare_cb)
3549#endif 3872# endif
3550 cb (EV_A_ EV_PREPARE, prepares [i]); 3873 cb (EV_A_ EV_PREPARE, prepares [i]);
3874#endif
3551 3875
3876#if EV_CHECK_ENABLE
3552 if (types & EV_CHECK) 3877 if (types & EV_CHECK)
3553 for (i = checkcnt; i--; ) 3878 for (i = checkcnt; i--; )
3554 cb (EV_A_ EV_CHECK, checks [i]); 3879 cb (EV_A_ EV_CHECK, checks [i]);
3880#endif
3555 3881
3882#if EV_SIGNAL_ENABLE
3556 if (types & EV_SIGNAL) 3883 if (types & EV_SIGNAL)
3557 for (i = 0; i < signalmax; ++i) 3884 for (i = 0; i < EV_NSIG - 1; ++i)
3558 for (wl = signals [i].head; wl; ) 3885 for (wl = signals [i].head; wl; )
3559 { 3886 {
3560 wn = wl->next; 3887 wn = wl->next;
3561 cb (EV_A_ EV_SIGNAL, wl); 3888 cb (EV_A_ EV_SIGNAL, wl);
3562 wl = wn; 3889 wl = wn;
3563 } 3890 }
3891#endif
3564 3892
3893#if EV_CHILD_ENABLE
3565 if (types & EV_CHILD) 3894 if (types & EV_CHILD)
3566 for (i = EV_PID_HASHSIZE; i--; ) 3895 for (i = (EV_PID_HASHSIZE); i--; )
3567 for (wl = childs [i]; wl; ) 3896 for (wl = childs [i]; wl; )
3568 { 3897 {
3569 wn = wl->next; 3898 wn = wl->next;
3570 cb (EV_A_ EV_CHILD, wl); 3899 cb (EV_A_ EV_CHILD, wl);
3571 wl = wn; 3900 wl = wn;
3572 } 3901 }
3902#endif
3573/* EV_STAT 0x00001000 /* stat data changed */ 3903/* EV_STAT 0x00001000 /* stat data changed */
3574/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3904/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3575} 3905}
3576#endif 3906#endif
3577 3907
3578#if EV_MULTIPLICITY 3908#if EV_MULTIPLICITY
3579 #include "ev_wrap.h" 3909 #include "ev_wrap.h"
3580#endif 3910#endif
3581 3911
3582#ifdef __cplusplus 3912EV_CPP(})
3583}
3584#endif
3585 3913

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