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Comparing libev/ev.c (file contents):
Revision 1.250 by root, Thu May 22 02:44:57 2008 UTC vs.
Revision 1.368 by root, Mon Jan 17 12:11:11 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 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
51 47
48# if HAVE_CLOCK_SYSCALL
49# ifndef EV_USE_CLOCK_SYSCALL
50# define EV_USE_CLOCK_SYSCALL 1
51# ifndef EV_USE_REALTIME
52# define EV_USE_REALTIME 0
53# endif
54# ifndef EV_USE_MONOTONIC
55# define EV_USE_MONOTONIC 1
56# endif
57# endif
58# elif !defined(EV_USE_CLOCK_SYSCALL)
59# define EV_USE_CLOCK_SYSCALL 0
60# endif
61
52# if HAVE_CLOCK_GETTIME 62# if HAVE_CLOCK_GETTIME
53# ifndef EV_USE_MONOTONIC 63# ifndef EV_USE_MONOTONIC
54# define EV_USE_MONOTONIC 1 64# define EV_USE_MONOTONIC 1
55# endif 65# endif
56# ifndef EV_USE_REALTIME 66# ifndef EV_USE_REALTIME
57# define EV_USE_REALTIME 1 67# define EV_USE_REALTIME 0
58# endif 68# endif
59# else 69# else
60# ifndef EV_USE_MONOTONIC 70# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 0 71# define EV_USE_MONOTONIC 0
62# endif 72# endif
63# ifndef EV_USE_REALTIME 73# ifndef EV_USE_REALTIME
64# define EV_USE_REALTIME 0 74# define EV_USE_REALTIME 0
65# endif 75# endif
66# endif 76# endif
67 77
78# if HAVE_NANOSLEEP
68# ifndef EV_USE_NANOSLEEP 79# ifndef EV_USE_NANOSLEEP
69# if HAVE_NANOSLEEP
70# define EV_USE_NANOSLEEP 1 80# define EV_USE_NANOSLEEP EV_FEATURE_OS
81# endif
71# else 82# else
83# undef EV_USE_NANOSLEEP
72# 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
73# endif 90# endif
91# else
92# undef EV_USE_SELECT
93# define EV_USE_SELECT 0
74# endif 94# endif
75 95
96# if HAVE_POLL && HAVE_POLL_H
76# ifndef EV_USE_SELECT 97# ifndef EV_USE_POLL
77# if HAVE_SELECT && HAVE_SYS_SELECT_H 98# define EV_USE_POLL EV_FEATURE_BACKENDS
78# define EV_USE_SELECT 1
79# else
80# define EV_USE_SELECT 0
81# endif 99# endif
82# endif
83
84# ifndef EV_USE_POLL
85# if HAVE_POLL && HAVE_POLL_H
86# define EV_USE_POLL 1
87# else 100# else
101# undef EV_USE_POLL
88# define EV_USE_POLL 0 102# define EV_USE_POLL 0
89# endif
90# endif 103# endif
91 104
92# ifndef EV_USE_EPOLL
93# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
94# define EV_USE_EPOLL 1 106# ifndef EV_USE_EPOLL
95# else 107# define EV_USE_EPOLL EV_FEATURE_BACKENDS
96# define EV_USE_EPOLL 0
97# endif 108# endif
109# else
110# undef EV_USE_EPOLL
111# define EV_USE_EPOLL 0
98# endif 112# endif
99 113
114# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
100# ifndef EV_USE_KQUEUE 115# ifndef EV_USE_KQUEUE
101# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
102# define EV_USE_KQUEUE 1
103# else
104# define EV_USE_KQUEUE 0
105# endif 117# endif
118# else
119# undef EV_USE_KQUEUE
120# define EV_USE_KQUEUE 0
106# endif 121# endif
107 122
108# ifndef EV_USE_PORT
109# if HAVE_PORT_H && HAVE_PORT_CREATE 123# if HAVE_PORT_H && HAVE_PORT_CREATE
110# define EV_USE_PORT 1 124# ifndef EV_USE_PORT
111# else 125# define EV_USE_PORT EV_FEATURE_BACKENDS
112# define EV_USE_PORT 0
113# endif 126# endif
127# else
128# undef EV_USE_PORT
129# define EV_USE_PORT 0
114# endif 130# endif
115 131
116# ifndef EV_USE_INOTIFY
117# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 132# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
118# define EV_USE_INOTIFY 1 133# ifndef EV_USE_INOTIFY
119# else
120# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY EV_FEATURE_OS
121# endif 135# endif
136# else
137# undef EV_USE_INOTIFY
138# define EV_USE_INOTIFY 0
122# endif 139# endif
123 140
141# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
124# ifndef EV_USE_EVENTFD 142# ifndef EV_USE_SIGNALFD
125# if HAVE_EVENTFD 143# define EV_USE_SIGNALFD EV_FEATURE_OS
126# define EV_USE_EVENTFD 1
127# else
128# define EV_USE_EVENTFD 0
129# endif 144# endif
145# else
146# undef EV_USE_SIGNALFD
147# define EV_USE_SIGNALFD 0
148# endif
149
150# if HAVE_EVENTFD
151# ifndef EV_USE_EVENTFD
152# define EV_USE_EVENTFD EV_FEATURE_OS
153# endif
154# else
155# undef EV_USE_EVENTFD
156# define EV_USE_EVENTFD 0
130# endif 157# endif
131 158
132#endif 159#endif
133 160
134#include <math.h> 161#include <math.h>
135#include <stdlib.h> 162#include <stdlib.h>
163#include <string.h>
136#include <fcntl.h> 164#include <fcntl.h>
137#include <stddef.h> 165#include <stddef.h>
138 166
139#include <stdio.h> 167#include <stdio.h>
140 168
141#include <assert.h> 169#include <assert.h>
142#include <errno.h> 170#include <errno.h>
143#include <sys/types.h> 171#include <sys/types.h>
144#include <time.h> 172#include <time.h>
173#include <limits.h>
145 174
146#include <signal.h> 175#include <signal.h>
147 176
148#ifdef EV_H 177#ifdef EV_H
149# include EV_H 178# include EV_H
150#else 179#else
151# include "ev.h" 180# include "ev.h"
152#endif 181#endif
182
183EV_CPP(extern "C" {)
153 184
154#ifndef _WIN32 185#ifndef _WIN32
155# include <sys/time.h> 186# include <sys/time.h>
156# include <sys/wait.h> 187# include <sys/wait.h>
157# include <unistd.h> 188# include <unistd.h>
158#else 189#else
190# include <io.h>
159# define WIN32_LEAN_AND_MEAN 191# define WIN32_LEAN_AND_MEAN
160# include <windows.h> 192# include <windows.h>
161# ifndef EV_SELECT_IS_WINSOCKET 193# ifndef EV_SELECT_IS_WINSOCKET
162# define EV_SELECT_IS_WINSOCKET 1 194# define EV_SELECT_IS_WINSOCKET 1
163# endif 195# endif
196# undef EV_AVOID_STDIO
164#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
165 206
166/* 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 */
167 208
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
236
237#ifndef EV_USE_CLOCK_SYSCALL
238# if __linux && __GLIBC__ >= 2
239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
240# else
241# define EV_USE_CLOCK_SYSCALL 0
242# endif
243#endif
244
168#ifndef EV_USE_MONOTONIC 245#ifndef EV_USE_MONOTONIC
246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
247# define EV_USE_MONOTONIC EV_FEATURE_OS
248# else
169# define EV_USE_MONOTONIC 0 249# define EV_USE_MONOTONIC 0
250# endif
170#endif 251#endif
171 252
172#ifndef EV_USE_REALTIME 253#ifndef EV_USE_REALTIME
173# define EV_USE_REALTIME 0 254# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174#endif 255#endif
175 256
176#ifndef EV_USE_NANOSLEEP 257#ifndef EV_USE_NANOSLEEP
258# if _POSIX_C_SOURCE >= 199309L
259# define EV_USE_NANOSLEEP EV_FEATURE_OS
260# else
177# define EV_USE_NANOSLEEP 0 261# define EV_USE_NANOSLEEP 0
262# endif
178#endif 263#endif
179 264
180#ifndef EV_USE_SELECT 265#ifndef EV_USE_SELECT
181# define EV_USE_SELECT 1 266# define EV_USE_SELECT EV_FEATURE_BACKENDS
182#endif 267#endif
183 268
184#ifndef EV_USE_POLL 269#ifndef EV_USE_POLL
185# ifdef _WIN32 270# ifdef _WIN32
186# define EV_USE_POLL 0 271# define EV_USE_POLL 0
187# else 272# else
188# define EV_USE_POLL 1 273# define EV_USE_POLL EV_FEATURE_BACKENDS
189# endif 274# endif
190#endif 275#endif
191 276
192#ifndef EV_USE_EPOLL 277#ifndef EV_USE_EPOLL
193# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
194# define EV_USE_EPOLL 1 279# define EV_USE_EPOLL EV_FEATURE_BACKENDS
195# else 280# else
196# define EV_USE_EPOLL 0 281# define EV_USE_EPOLL 0
197# endif 282# endif
198#endif 283#endif
199 284
… …
205# define EV_USE_PORT 0 290# define EV_USE_PORT 0
206#endif 291#endif
207 292
208#ifndef EV_USE_INOTIFY 293#ifndef EV_USE_INOTIFY
209# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
210# define EV_USE_INOTIFY 1 295# define EV_USE_INOTIFY EV_FEATURE_OS
211# else 296# else
212# define EV_USE_INOTIFY 0 297# define EV_USE_INOTIFY 0
213# endif 298# endif
214#endif 299#endif
215 300
216#ifndef EV_PID_HASHSIZE 301#ifndef EV_PID_HASHSIZE
217# if EV_MINIMAL 302# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
218# define EV_PID_HASHSIZE 1
219# else
220# define EV_PID_HASHSIZE 16
221# endif
222#endif 303#endif
223 304
224#ifndef EV_INOTIFY_HASHSIZE 305#ifndef EV_INOTIFY_HASHSIZE
225# if EV_MINIMAL 306# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
226# define EV_INOTIFY_HASHSIZE 1
227# else
228# define EV_INOTIFY_HASHSIZE 16
229# endif
230#endif 307#endif
231 308
232#ifndef EV_USE_EVENTFD 309#ifndef EV_USE_EVENTFD
233# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
234# define EV_USE_EVENTFD 1 311# define EV_USE_EVENTFD EV_FEATURE_OS
235# else 312# else
236# define EV_USE_EVENTFD 0 313# define EV_USE_EVENTFD 0
314# endif
315#endif
316
317#ifndef EV_USE_SIGNALFD
318# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
319# define EV_USE_SIGNALFD EV_FEATURE_OS
320# else
321# define EV_USE_SIGNALFD 0
237# endif 322# endif
238#endif 323#endif
239 324
240#if 0 /* debugging */ 325#if 0 /* debugging */
241# define EV_VERIFY 3 326# define EV_VERIFY 3
242# define EV_USE_4HEAP 1 327# define EV_USE_4HEAP 1
243# define EV_HEAP_CACHE_AT 1 328# define EV_HEAP_CACHE_AT 1
244#endif 329#endif
245 330
246#ifndef EV_VERIFY 331#ifndef EV_VERIFY
247# define EV_VERIFY !EV_MINIMAL 332# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
248#endif 333#endif
249 334
250#ifndef EV_USE_4HEAP 335#ifndef EV_USE_4HEAP
251# define EV_USE_4HEAP !EV_MINIMAL 336# define EV_USE_4HEAP EV_FEATURE_DATA
252#endif 337#endif
253 338
254#ifndef EV_HEAP_CACHE_AT 339#ifndef EV_HEAP_CACHE_AT
255# define EV_HEAP_CACHE_AT !EV_MINIMAL 340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
341#endif
342
343/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
344/* which makes programs even slower. might work on other unices, too. */
345#if EV_USE_CLOCK_SYSCALL
346# include <syscall.h>
347# ifdef SYS_clock_gettime
348# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
349# undef EV_USE_MONOTONIC
350# define EV_USE_MONOTONIC 1
351# else
352# undef EV_USE_CLOCK_SYSCALL
353# define EV_USE_CLOCK_SYSCALL 0
354# endif
256#endif 355#endif
257 356
258/* 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 */
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
259 364
260#ifndef CLOCK_MONOTONIC 365#ifndef CLOCK_MONOTONIC
261# undef EV_USE_MONOTONIC 366# undef EV_USE_MONOTONIC
262# define EV_USE_MONOTONIC 0 367# define EV_USE_MONOTONIC 0
263#endif 368#endif
… …
277# include <sys/select.h> 382# include <sys/select.h>
278# endif 383# endif
279#endif 384#endif
280 385
281#if EV_USE_INOTIFY 386#if EV_USE_INOTIFY
387# include <sys/statfs.h>
282# include <sys/inotify.h> 388# include <sys/inotify.h>
389/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
390# ifndef IN_DONT_FOLLOW
391# undef EV_USE_INOTIFY
392# define EV_USE_INOTIFY 0
393# endif
283#endif 394#endif
284 395
285#if EV_SELECT_IS_WINSOCKET 396#if EV_SELECT_IS_WINSOCKET
286# include <winsock.h> 397# include <winsock.h>
287#endif 398#endif
288 399
289#if EV_USE_EVENTFD 400#if EV_USE_EVENTFD
290/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 401/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
291# include <stdint.h> 402# include <stdint.h>
292# ifdef __cplusplus 403# ifndef EFD_NONBLOCK
293extern "C" { 404# define EFD_NONBLOCK O_NONBLOCK
294# endif 405# endif
295int eventfd (unsigned int initval, int flags); 406# ifndef EFD_CLOEXEC
296# ifdef __cplusplus 407# ifdef O_CLOEXEC
297} 408# define EFD_CLOEXEC O_CLOEXEC
409# else
410# define EFD_CLOEXEC 02000000
411# endif
298# endif 412# endif
413EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
414#endif
415
416#if EV_USE_SIGNALFD
417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
418# include <stdint.h>
419# ifndef SFD_NONBLOCK
420# define SFD_NONBLOCK O_NONBLOCK
421# endif
422# ifndef SFD_CLOEXEC
423# ifdef O_CLOEXEC
424# define SFD_CLOEXEC O_CLOEXEC
425# else
426# define SFD_CLOEXEC 02000000
427# endif
428# endif
429EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
430
431struct signalfd_siginfo
432{
433 uint32_t ssi_signo;
434 char pad[128 - sizeof (uint32_t)];
435};
299#endif 436#endif
300 437
301/**/ 438/**/
302 439
303#if EV_VERIFY >= 3 440#if EV_VERIFY >= 3
304# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 441# define EV_FREQUENT_CHECK ev_verify (EV_A)
305#else 442#else
306# define EV_FREQUENT_CHECK do { } while (0) 443# define EV_FREQUENT_CHECK do { } while (0)
307#endif 444#endif
308 445
309/* 446/*
… …
316 */ 453 */
317#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 454#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
318 455
319#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 456#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
320#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 457#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
321/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ 458
459#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
460#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
322 461
323#if __GNUC__ >= 4 462#if __GNUC__ >= 4
324# define expect(expr,value) __builtin_expect ((expr),(value)) 463# define expect(expr,value) __builtin_expect ((expr),(value))
325# define noinline __attribute__ ((noinline)) 464# define noinline __attribute__ ((noinline))
326#else 465#else
… …
333 472
334#define expect_false(expr) expect ((expr) != 0, 0) 473#define expect_false(expr) expect ((expr) != 0, 0)
335#define expect_true(expr) expect ((expr) != 0, 1) 474#define expect_true(expr) expect ((expr) != 0, 1)
336#define inline_size static inline 475#define inline_size static inline
337 476
338#if EV_MINIMAL 477#if EV_FEATURE_CODE
478# define inline_speed static inline
479#else
339# define inline_speed static noinline 480# define inline_speed static noinline
481#endif
482
483#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
484
485#if EV_MINPRI == EV_MAXPRI
486# define ABSPRI(w) (((W)w), 0)
340#else 487#else
341# define inline_speed static inline
342#endif
343
344#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
345#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 488# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
489#endif
346 490
347#define EMPTY /* required for microsofts broken pseudo-c compiler */ 491#define EMPTY /* required for microsofts broken pseudo-c compiler */
348#define EMPTY2(a,b) /* used to suppress some warnings */ 492#define EMPTY2(a,b) /* used to suppress some warnings */
349 493
350typedef ev_watcher *W; 494typedef ev_watcher *W;
… …
352typedef ev_watcher_time *WT; 496typedef ev_watcher_time *WT;
353 497
354#define ev_active(w) ((W)(w))->active 498#define ev_active(w) ((W)(w))->active
355#define ev_at(w) ((WT)(w))->at 499#define ev_at(w) ((WT)(w))->at
356 500
501#if EV_USE_REALTIME
502/* sig_atomic_t is used to avoid per-thread variables or locking but still */
503/* giving it a reasonably high chance of working on typical architectures */
504static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
505#endif
506
357#if EV_USE_MONOTONIC 507#if EV_USE_MONOTONIC
358/* sig_atomic_t is used to avoid per-thread variables or locking but still */
359/* giving it a reasonably high chance of working on typical architetcures */
360static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 508static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
509#endif
510
511#ifndef EV_FD_TO_WIN32_HANDLE
512# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
513#endif
514#ifndef EV_WIN32_HANDLE_TO_FD
515# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
516#endif
517#ifndef EV_WIN32_CLOSE_FD
518# define EV_WIN32_CLOSE_FD(fd) close (fd)
361#endif 519#endif
362 520
363#ifdef _WIN32 521#ifdef _WIN32
364# include "ev_win32.c" 522# include "ev_win32.c"
365#endif 523#endif
366 524
367/*****************************************************************************/ 525/*****************************************************************************/
368 526
527#ifdef __linux
528# include <sys/utsname.h>
529#endif
530
531static unsigned int noinline
532ev_linux_version (void)
533{
534#ifdef __linux
535 unsigned int v = 0;
536 struct utsname buf;
537 int i;
538 char *p = buf.release;
539
540 if (uname (&buf))
541 return 0;
542
543 for (i = 3+1; --i; )
544 {
545 unsigned int c = 0;
546
547 for (;;)
548 {
549 if (*p >= '0' && *p <= '9')
550 c = c * 10 + *p++ - '0';
551 else
552 {
553 p += *p == '.';
554 break;
555 }
556 }
557
558 v = (v << 8) | c;
559 }
560
561 return v;
562#else
563 return 0;
564#endif
565}
566
567/*****************************************************************************/
568
569#if EV_AVOID_STDIO
570static void noinline
571ev_printerr (const char *msg)
572{
573 write (STDERR_FILENO, msg, strlen (msg));
574}
575#endif
576
369static void (*syserr_cb)(const char *msg); 577static void (*syserr_cb)(const char *msg);
370 578
371void 579void
372ev_set_syserr_cb (void (*cb)(const char *msg)) 580ev_set_syserr_cb (void (*cb)(const char *msg))
373{ 581{
374 syserr_cb = cb; 582 syserr_cb = cb;
375} 583}
376 584
377static void noinline 585static void noinline
378syserr (const char *msg) 586ev_syserr (const char *msg)
379{ 587{
380 if (!msg) 588 if (!msg)
381 msg = "(libev) system error"; 589 msg = "(libev) system error";
382 590
383 if (syserr_cb) 591 if (syserr_cb)
384 syserr_cb (msg); 592 syserr_cb (msg);
385 else 593 else
386 { 594 {
595#if EV_AVOID_STDIO
596 ev_printerr (msg);
597 ev_printerr (": ");
598 ev_printerr (strerror (errno));
599 ev_printerr ("\n");
600#else
387 perror (msg); 601 perror (msg);
602#endif
388 abort (); 603 abort ();
389 } 604 }
390} 605}
391 606
392static void * 607static void *
393ev_realloc_emul (void *ptr, long size) 608ev_realloc_emul (void *ptr, long size)
394{ 609{
610#if __GLIBC__
611 return realloc (ptr, size);
612#else
395 /* some systems, notably openbsd and darwin, fail to properly 613 /* some systems, notably openbsd and darwin, fail to properly
396 * implement realloc (x, 0) (as required by both ansi c-98 and 614 * implement realloc (x, 0) (as required by both ansi c-89 and
397 * the single unix specification, so work around them here. 615 * the single unix specification, so work around them here.
398 */ 616 */
399 617
400 if (size) 618 if (size)
401 return realloc (ptr, size); 619 return realloc (ptr, size);
402 620
403 free (ptr); 621 free (ptr);
404 return 0; 622 return 0;
623#endif
405} 624}
406 625
407static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 626static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
408 627
409void 628void
… …
417{ 636{
418 ptr = alloc (ptr, size); 637 ptr = alloc (ptr, size);
419 638
420 if (!ptr && size) 639 if (!ptr && size)
421 { 640 {
641#if EV_AVOID_STDIO
642 ev_printerr ("(libev) memory allocation failed, aborting.\n");
643#else
422 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 644 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
645#endif
423 abort (); 646 abort ();
424 } 647 }
425 648
426 return ptr; 649 return ptr;
427} 650}
… …
429#define ev_malloc(size) ev_realloc (0, (size)) 652#define ev_malloc(size) ev_realloc (0, (size))
430#define ev_free(ptr) ev_realloc ((ptr), 0) 653#define ev_free(ptr) ev_realloc ((ptr), 0)
431 654
432/*****************************************************************************/ 655/*****************************************************************************/
433 656
657/* set in reify when reification needed */
658#define EV_ANFD_REIFY 1
659
660/* file descriptor info structure */
434typedef struct 661typedef struct
435{ 662{
436 WL head; 663 WL head;
437 unsigned char events; 664 unsigned char events; /* the events watched for */
665 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
666 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
438 unsigned char reify; 667 unsigned char unused;
668#if EV_USE_EPOLL
669 unsigned int egen; /* generation counter to counter epoll bugs */
670#endif
439#if EV_SELECT_IS_WINSOCKET 671#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
440 SOCKET handle; 672 SOCKET handle;
441#endif 673#endif
674#if EV_USE_IOCP
675 OVERLAPPED or, ow;
676#endif
442} ANFD; 677} ANFD;
443 678
679/* stores the pending event set for a given watcher */
444typedef struct 680typedef struct
445{ 681{
446 W w; 682 W w;
447 int events; 683 int events; /* the pending event set for the given watcher */
448} ANPENDING; 684} ANPENDING;
449 685
450#if EV_USE_INOTIFY 686#if EV_USE_INOTIFY
451/* hash table entry per inotify-id */ 687/* hash table entry per inotify-id */
452typedef struct 688typedef struct
… …
455} ANFS; 691} ANFS;
456#endif 692#endif
457 693
458/* Heap Entry */ 694/* Heap Entry */
459#if EV_HEAP_CACHE_AT 695#if EV_HEAP_CACHE_AT
696 /* a heap element */
460 typedef struct { 697 typedef struct {
461 ev_tstamp at; 698 ev_tstamp at;
462 WT w; 699 WT w;
463 } ANHE; 700 } ANHE;
464 701
465 #define ANHE_w(he) (he).w /* access watcher, read-write */ 702 #define ANHE_w(he) (he).w /* access watcher, read-write */
466 #define ANHE_at(he) (he).at /* access cached at, read-only */ 703 #define ANHE_at(he) (he).at /* access cached at, read-only */
467 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ 704 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
468#else 705#else
706 /* a heap element */
469 typedef WT ANHE; 707 typedef WT ANHE;
470 708
471 #define ANHE_w(he) (he) 709 #define ANHE_w(he) (he)
472 #define ANHE_at(he) (he)->at 710 #define ANHE_at(he) (he)->at
473 #define ANHE_at_cache(he) 711 #define ANHE_at_cache(he)
… …
497 735
498 static int ev_default_loop_ptr; 736 static int ev_default_loop_ptr;
499 737
500#endif 738#endif
501 739
740#if EV_FEATURE_API
741# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
742# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
743# define EV_INVOKE_PENDING invoke_cb (EV_A)
744#else
745# define EV_RELEASE_CB (void)0
746# define EV_ACQUIRE_CB (void)0
747# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
748#endif
749
750#define EVBREAK_RECURSE 0x80
751
502/*****************************************************************************/ 752/*****************************************************************************/
503 753
754#ifndef EV_HAVE_EV_TIME
504ev_tstamp 755ev_tstamp
505ev_time (void) 756ev_time (void)
506{ 757{
507#if EV_USE_REALTIME 758#if EV_USE_REALTIME
759 if (expect_true (have_realtime))
760 {
508 struct timespec ts; 761 struct timespec ts;
509 clock_gettime (CLOCK_REALTIME, &ts); 762 clock_gettime (CLOCK_REALTIME, &ts);
510 return ts.tv_sec + ts.tv_nsec * 1e-9; 763 return ts.tv_sec + ts.tv_nsec * 1e-9;
511#else 764 }
765#endif
766
512 struct timeval tv; 767 struct timeval tv;
513 gettimeofday (&tv, 0); 768 gettimeofday (&tv, 0);
514 return tv.tv_sec + tv.tv_usec * 1e-6; 769 return tv.tv_sec + tv.tv_usec * 1e-6;
515#endif
516} 770}
771#endif
517 772
518ev_tstamp inline_size 773inline_size ev_tstamp
519get_clock (void) 774get_clock (void)
520{ 775{
521#if EV_USE_MONOTONIC 776#if EV_USE_MONOTONIC
522 if (expect_true (have_monotonic)) 777 if (expect_true (have_monotonic))
523 { 778 {
… …
544 if (delay > 0.) 799 if (delay > 0.)
545 { 800 {
546#if EV_USE_NANOSLEEP 801#if EV_USE_NANOSLEEP
547 struct timespec ts; 802 struct timespec ts;
548 803
549 ts.tv_sec = (time_t)delay; 804 EV_TS_SET (ts, delay);
550 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
551
552 nanosleep (&ts, 0); 805 nanosleep (&ts, 0);
553#elif defined(_WIN32) 806#elif defined(_WIN32)
554 Sleep ((unsigned long)(delay * 1e3)); 807 Sleep ((unsigned long)(delay * 1e3));
555#else 808#else
556 struct timeval tv; 809 struct timeval tv;
557 810
558 tv.tv_sec = (time_t)delay; 811 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
559 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 812 /* something not guaranteed by newer posix versions, but guaranteed */
560 813 /* by older ones */
814 EV_TV_SET (tv, delay);
561 select (0, 0, 0, 0, &tv); 815 select (0, 0, 0, 0, &tv);
562#endif 816#endif
563 } 817 }
564} 818}
565 819
820inline_speed int
821ev_timeout_to_ms (ev_tstamp timeout)
822{
823 int ms = timeout * 1000. + .999999;
824
825 return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
826}
827
566/*****************************************************************************/ 828/*****************************************************************************/
567 829
568#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 830#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
569 831
570int inline_size 832/* find a suitable new size for the given array, */
833/* hopefully by rounding to a nice-to-malloc size */
834inline_size int
571array_nextsize (int elem, int cur, int cnt) 835array_nextsize (int elem, int cur, int cnt)
572{ 836{
573 int ncur = cur + 1; 837 int ncur = cur + 1;
574 838
575 do 839 do
… …
592array_realloc (int elem, void *base, int *cur, int cnt) 856array_realloc (int elem, void *base, int *cur, int cnt)
593{ 857{
594 *cur = array_nextsize (elem, *cur, cnt); 858 *cur = array_nextsize (elem, *cur, cnt);
595 return ev_realloc (base, elem * *cur); 859 return ev_realloc (base, elem * *cur);
596} 860}
861
862#define array_init_zero(base,count) \
863 memset ((void *)(base), 0, sizeof (*(base)) * (count))
597 864
598#define array_needsize(type,base,cur,cnt,init) \ 865#define array_needsize(type,base,cur,cnt,init) \
599 if (expect_false ((cnt) > (cur))) \ 866 if (expect_false ((cnt) > (cur))) \
600 { \ 867 { \
601 int ocur_ = (cur); \ 868 int ocur_ = (cur); \
… …
613 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 880 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
614 } 881 }
615#endif 882#endif
616 883
617#define array_free(stem, idx) \ 884#define array_free(stem, idx) \
618 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 885 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
619 886
620/*****************************************************************************/ 887/*****************************************************************************/
888
889/* dummy callback for pending events */
890static void noinline
891pendingcb (EV_P_ ev_prepare *w, int revents)
892{
893}
621 894
622void noinline 895void noinline
623ev_feed_event (EV_P_ void *w, int revents) 896ev_feed_event (EV_P_ void *w, int revents)
624{ 897{
625 W w_ = (W)w; 898 W w_ = (W)w;
… …
634 pendings [pri][w_->pending - 1].w = w_; 907 pendings [pri][w_->pending - 1].w = w_;
635 pendings [pri][w_->pending - 1].events = revents; 908 pendings [pri][w_->pending - 1].events = revents;
636 } 909 }
637} 910}
638 911
639void inline_speed 912inline_speed void
913feed_reverse (EV_P_ W w)
914{
915 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
916 rfeeds [rfeedcnt++] = w;
917}
918
919inline_size void
920feed_reverse_done (EV_P_ int revents)
921{
922 do
923 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
924 while (rfeedcnt);
925}
926
927inline_speed void
640queue_events (EV_P_ W *events, int eventcnt, int type) 928queue_events (EV_P_ W *events, int eventcnt, int type)
641{ 929{
642 int i; 930 int i;
643 931
644 for (i = 0; i < eventcnt; ++i) 932 for (i = 0; i < eventcnt; ++i)
645 ev_feed_event (EV_A_ events [i], type); 933 ev_feed_event (EV_A_ events [i], type);
646} 934}
647 935
648/*****************************************************************************/ 936/*****************************************************************************/
649 937
650void inline_size 938inline_speed void
651anfds_init (ANFD *base, int count)
652{
653 while (count--)
654 {
655 base->head = 0;
656 base->events = EV_NONE;
657 base->reify = 0;
658
659 ++base;
660 }
661}
662
663void inline_speed
664fd_event (EV_P_ int fd, int revents) 939fd_event_nocheck (EV_P_ int fd, int revents)
665{ 940{
666 ANFD *anfd = anfds + fd; 941 ANFD *anfd = anfds + fd;
667 ev_io *w; 942 ev_io *w;
668 943
669 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 944 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
673 if (ev) 948 if (ev)
674 ev_feed_event (EV_A_ (W)w, ev); 949 ev_feed_event (EV_A_ (W)w, ev);
675 } 950 }
676} 951}
677 952
953/* do not submit kernel events for fds that have reify set */
954/* because that means they changed while we were polling for new events */
955inline_speed void
956fd_event (EV_P_ int fd, int revents)
957{
958 ANFD *anfd = anfds + fd;
959
960 if (expect_true (!anfd->reify))
961 fd_event_nocheck (EV_A_ fd, revents);
962}
963
678void 964void
679ev_feed_fd_event (EV_P_ int fd, int revents) 965ev_feed_fd_event (EV_P_ int fd, int revents)
680{ 966{
681 if (fd >= 0 && fd < anfdmax) 967 if (fd >= 0 && fd < anfdmax)
682 fd_event (EV_A_ fd, revents); 968 fd_event_nocheck (EV_A_ fd, revents);
683} 969}
684 970
685void inline_size 971/* make sure the external fd watch events are in-sync */
972/* with the kernel/libev internal state */
973inline_size void
686fd_reify (EV_P) 974fd_reify (EV_P)
687{ 975{
688 int i; 976 int i;
689 977
690 for (i = 0; i < fdchangecnt; ++i) 978 for (i = 0; i < fdchangecnt; ++i)
691 { 979 {
692 int fd = fdchanges [i]; 980 int fd = fdchanges [i];
693 ANFD *anfd = anfds + fd; 981 ANFD *anfd = anfds + fd;
694 ev_io *w; 982 ev_io *w;
695 983
696 unsigned char events = 0; 984 unsigned char o_events = anfd->events;
985 unsigned char o_reify = anfd->reify;
697 986
698 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 987 anfd->reify = 0;
699 events |= (unsigned char)w->events;
700 988
701#if EV_SELECT_IS_WINSOCKET 989#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
702 if (events) 990 if (o_reify & EV__IOFDSET)
703 { 991 {
704 unsigned long argp; 992 unsigned long arg;
705 #ifdef EV_FD_TO_WIN32_HANDLE
706 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 993 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
707 #else
708 anfd->handle = _get_osfhandle (fd);
709 #endif
710 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 994 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
995 printf ("oi %d %x\n", fd, anfd->handle);//D
711 } 996 }
712#endif 997#endif
713 998
999 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
714 { 1000 {
715 unsigned char o_events = anfd->events;
716 unsigned char o_reify = anfd->reify;
717
718 anfd->reify = 0;
719 anfd->events = events; 1001 anfd->events = 0;
720 1002
721 if (o_events != events || o_reify & EV_IOFDSET) 1003 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1004 anfd->events |= (unsigned char)w->events;
1005
1006 if (o_events != anfd->events)
1007 o_reify = EV__IOFDSET; /* actually |= */
1008 }
1009
1010 if (o_reify & EV__IOFDSET)
722 backend_modify (EV_A_ fd, o_events, events); 1011 backend_modify (EV_A_ fd, o_events, anfd->events);
723 }
724 } 1012 }
725 1013
726 fdchangecnt = 0; 1014 fdchangecnt = 0;
727} 1015}
728 1016
729void inline_size 1017/* something about the given fd changed */
1018inline_size void
730fd_change (EV_P_ int fd, int flags) 1019fd_change (EV_P_ int fd, int flags)
731{ 1020{
732 unsigned char reify = anfds [fd].reify; 1021 unsigned char reify = anfds [fd].reify;
733 anfds [fd].reify |= flags; 1022 anfds [fd].reify |= flags;
734 1023
… …
738 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 1027 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
739 fdchanges [fdchangecnt - 1] = fd; 1028 fdchanges [fdchangecnt - 1] = fd;
740 } 1029 }
741} 1030}
742 1031
743void inline_speed 1032/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1033inline_speed void
744fd_kill (EV_P_ int fd) 1034fd_kill (EV_P_ int fd)
745{ 1035{
746 ev_io *w; 1036 ev_io *w;
747 1037
748 while ((w = (ev_io *)anfds [fd].head)) 1038 while ((w = (ev_io *)anfds [fd].head))
… …
750 ev_io_stop (EV_A_ w); 1040 ev_io_stop (EV_A_ w);
751 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1041 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
752 } 1042 }
753} 1043}
754 1044
755int inline_size 1045/* check whether the given fd is actually valid, for error recovery */
1046inline_size int
756fd_valid (int fd) 1047fd_valid (int fd)
757{ 1048{
758#ifdef _WIN32 1049#ifdef _WIN32
759 return _get_osfhandle (fd) != -1; 1050 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
760#else 1051#else
761 return fcntl (fd, F_GETFD) != -1; 1052 return fcntl (fd, F_GETFD) != -1;
762#endif 1053#endif
763} 1054}
764 1055
… …
768{ 1059{
769 int fd; 1060 int fd;
770 1061
771 for (fd = 0; fd < anfdmax; ++fd) 1062 for (fd = 0; fd < anfdmax; ++fd)
772 if (anfds [fd].events) 1063 if (anfds [fd].events)
773 if (!fd_valid (fd) == -1 && errno == EBADF) 1064 if (!fd_valid (fd) && errno == EBADF)
774 fd_kill (EV_A_ fd); 1065 fd_kill (EV_A_ fd);
775} 1066}
776 1067
777/* called on ENOMEM in select/poll to kill some fds and retry */ 1068/* called on ENOMEM in select/poll to kill some fds and retry */
778static void noinline 1069static void noinline
… …
782 1073
783 for (fd = anfdmax; fd--; ) 1074 for (fd = anfdmax; fd--; )
784 if (anfds [fd].events) 1075 if (anfds [fd].events)
785 { 1076 {
786 fd_kill (EV_A_ fd); 1077 fd_kill (EV_A_ fd);
787 return; 1078 break;
788 } 1079 }
789} 1080}
790 1081
791/* usually called after fork if backend needs to re-arm all fds from scratch */ 1082/* usually called after fork if backend needs to re-arm all fds from scratch */
792static void noinline 1083static void noinline
… …
796 1087
797 for (fd = 0; fd < anfdmax; ++fd) 1088 for (fd = 0; fd < anfdmax; ++fd)
798 if (anfds [fd].events) 1089 if (anfds [fd].events)
799 { 1090 {
800 anfds [fd].events = 0; 1091 anfds [fd].events = 0;
1092 anfds [fd].emask = 0;
801 fd_change (EV_A_ fd, EV_IOFDSET | 1); 1093 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
802 } 1094 }
803} 1095}
804 1096
1097/* used to prepare libev internal fd's */
1098/* this is not fork-safe */
1099inline_speed void
1100fd_intern (int fd)
1101{
1102#ifdef _WIN32
1103 unsigned long arg = 1;
1104 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1105#else
1106 fcntl (fd, F_SETFD, FD_CLOEXEC);
1107 fcntl (fd, F_SETFL, O_NONBLOCK);
1108#endif
1109}
1110
805/*****************************************************************************/ 1111/*****************************************************************************/
806 1112
807/* 1113/*
808 * the heap functions want a real array index. array index 0 uis guaranteed to not 1114 * the heap functions want a real array index. array index 0 is guaranteed to not
809 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1115 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
810 * the branching factor of the d-tree. 1116 * the branching factor of the d-tree.
811 */ 1117 */
812 1118
813/* 1119/*
… …
822#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 1128#define HEAP0 (DHEAP - 1) /* index of first element in heap */
823#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 1129#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
824#define UPHEAP_DONE(p,k) ((p) == (k)) 1130#define UPHEAP_DONE(p,k) ((p) == (k))
825 1131
826/* away from the root */ 1132/* away from the root */
827void inline_speed 1133inline_speed void
828downheap (ANHE *heap, int N, int k) 1134downheap (ANHE *heap, int N, int k)
829{ 1135{
830 ANHE he = heap [k]; 1136 ANHE he = heap [k];
831 ANHE *E = heap + N + HEAP0; 1137 ANHE *E = heap + N + HEAP0;
832 1138
… …
872#define HEAP0 1 1178#define HEAP0 1
873#define HPARENT(k) ((k) >> 1) 1179#define HPARENT(k) ((k) >> 1)
874#define UPHEAP_DONE(p,k) (!(p)) 1180#define UPHEAP_DONE(p,k) (!(p))
875 1181
876/* away from the root */ 1182/* away from the root */
877void inline_speed 1183inline_speed void
878downheap (ANHE *heap, int N, int k) 1184downheap (ANHE *heap, int N, int k)
879{ 1185{
880 ANHE he = heap [k]; 1186 ANHE he = heap [k];
881 1187
882 for (;;) 1188 for (;;)
883 { 1189 {
884 int c = k << 1; 1190 int c = k << 1;
885 1191
886 if (c > N + HEAP0 - 1) 1192 if (c >= N + HEAP0)
887 break; 1193 break;
888 1194
889 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1195 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
890 ? 1 : 0; 1196 ? 1 : 0;
891 1197
… …
902 ev_active (ANHE_w (he)) = k; 1208 ev_active (ANHE_w (he)) = k;
903} 1209}
904#endif 1210#endif
905 1211
906/* towards the root */ 1212/* towards the root */
907void inline_speed 1213inline_speed void
908upheap (ANHE *heap, int k) 1214upheap (ANHE *heap, int k)
909{ 1215{
910 ANHE he = heap [k]; 1216 ANHE he = heap [k];
911 1217
912 for (;;) 1218 for (;;)
… …
923 1229
924 heap [k] = he; 1230 heap [k] = he;
925 ev_active (ANHE_w (he)) = k; 1231 ev_active (ANHE_w (he)) = k;
926} 1232}
927 1233
928void inline_size 1234/* move an element suitably so it is in a correct place */
1235inline_size void
929adjustheap (ANHE *heap, int N, int k) 1236adjustheap (ANHE *heap, int N, int k)
930{ 1237{
931 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1238 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
932 upheap (heap, k); 1239 upheap (heap, k);
933 else 1240 else
934 downheap (heap, N, k); 1241 downheap (heap, N, k);
935} 1242}
936 1243
937/* rebuild the heap: this function is used only once and executed rarely */ 1244/* rebuild the heap: this function is used only once and executed rarely */
938void inline_size 1245inline_size void
939reheap (ANHE *heap, int N) 1246reheap (ANHE *heap, int N)
940{ 1247{
941 int i; 1248 int i;
1249
942 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ 1250 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
943 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ 1251 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
944 for (i = 0; i < N; ++i) 1252 for (i = 0; i < N; ++i)
945 upheap (heap, i + HEAP0); 1253 upheap (heap, i + HEAP0);
946} 1254}
947 1255
948#if EV_VERIFY
949static void
950checkheap (ANHE *heap, int N)
951{
952 int i;
953
954 for (i = HEAP0; i < N + HEAP0; ++i)
955 {
956 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
957 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
958 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
959 }
960}
961#endif
962
963/*****************************************************************************/ 1256/*****************************************************************************/
964 1257
1258/* associate signal watchers to a signal signal */
965typedef struct 1259typedef struct
966{ 1260{
1261 EV_ATOMIC_T pending;
1262#if EV_MULTIPLICITY
1263 EV_P;
1264#endif
967 WL head; 1265 WL head;
968 EV_ATOMIC_T gotsig;
969} ANSIG; 1266} ANSIG;
970 1267
971static ANSIG *signals; 1268static ANSIG signals [EV_NSIG - 1];
972static int signalmax;
973
974static EV_ATOMIC_T gotsig;
975
976void inline_size
977signals_init (ANSIG *base, int count)
978{
979 while (count--)
980 {
981 base->head = 0;
982 base->gotsig = 0;
983
984 ++base;
985 }
986}
987 1269
988/*****************************************************************************/ 1270/*****************************************************************************/
989 1271
990void inline_speed 1272#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
991fd_intern (int fd)
992{
993#ifdef _WIN32
994 int arg = 1;
995 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
996#else
997 fcntl (fd, F_SETFD, FD_CLOEXEC);
998 fcntl (fd, F_SETFL, O_NONBLOCK);
999#endif
1000}
1001 1273
1002static void noinline 1274static void noinline
1003evpipe_init (EV_P) 1275evpipe_init (EV_P)
1004{ 1276{
1005 if (!ev_is_active (&pipeev)) 1277 if (!ev_is_active (&pipe_w))
1006 { 1278 {
1007#if EV_USE_EVENTFD 1279# if EV_USE_EVENTFD
1280 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1281 if (evfd < 0 && errno == EINVAL)
1008 if ((evfd = eventfd (0, 0)) >= 0) 1282 evfd = eventfd (0, 0);
1283
1284 if (evfd >= 0)
1009 { 1285 {
1010 evpipe [0] = -1; 1286 evpipe [0] = -1;
1011 fd_intern (evfd); 1287 fd_intern (evfd); /* doing it twice doesn't hurt */
1012 ev_io_set (&pipeev, evfd, EV_READ); 1288 ev_io_set (&pipe_w, evfd, EV_READ);
1013 } 1289 }
1014 else 1290 else
1015#endif 1291# endif
1016 { 1292 {
1017 while (pipe (evpipe)) 1293 while (pipe (evpipe))
1018 syserr ("(libev) error creating signal/async pipe"); 1294 ev_syserr ("(libev) error creating signal/async pipe");
1019 1295
1020 fd_intern (evpipe [0]); 1296 fd_intern (evpipe [0]);
1021 fd_intern (evpipe [1]); 1297 fd_intern (evpipe [1]);
1022 ev_io_set (&pipeev, evpipe [0], EV_READ); 1298 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1023 } 1299 }
1024 1300
1025 ev_io_start (EV_A_ &pipeev); 1301 ev_io_start (EV_A_ &pipe_w);
1026 ev_unref (EV_A); /* watcher should not keep loop alive */ 1302 ev_unref (EV_A); /* watcher should not keep loop alive */
1027 } 1303 }
1028} 1304}
1029 1305
1030void inline_size 1306inline_size void
1031evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1307evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1032{ 1308{
1033 if (!*flag) 1309 if (!*flag)
1034 { 1310 {
1035 int old_errno = errno; /* save errno because write might clobber it */ 1311 int old_errno = errno; /* save errno because write might clobber it */
1312 char dummy;
1036 1313
1037 *flag = 1; 1314 *flag = 1;
1038 1315
1039#if EV_USE_EVENTFD 1316#if EV_USE_EVENTFD
1040 if (evfd >= 0) 1317 if (evfd >= 0)
… …
1042 uint64_t counter = 1; 1319 uint64_t counter = 1;
1043 write (evfd, &counter, sizeof (uint64_t)); 1320 write (evfd, &counter, sizeof (uint64_t));
1044 } 1321 }
1045 else 1322 else
1046#endif 1323#endif
1324 /* win32 people keep sending patches that change this write() to send() */
1325 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1326 /* so when you think this write should be a send instead, please find out */
1327 /* where your send() is from - it's definitely not the microsoft send, and */
1328 /* tell me. thank you. */
1047 write (evpipe [1], &old_errno, 1); 1329 write (evpipe [1], &dummy, 1);
1048 1330
1049 errno = old_errno; 1331 errno = old_errno;
1050 } 1332 }
1051} 1333}
1052 1334
1335/* called whenever the libev signal pipe */
1336/* got some events (signal, async) */
1053static void 1337static void
1054pipecb (EV_P_ ev_io *iow, int revents) 1338pipecb (EV_P_ ev_io *iow, int revents)
1055{ 1339{
1340 int i;
1341
1056#if EV_USE_EVENTFD 1342#if EV_USE_EVENTFD
1057 if (evfd >= 0) 1343 if (evfd >= 0)
1058 { 1344 {
1059 uint64_t counter; 1345 uint64_t counter;
1060 read (evfd, &counter, sizeof (uint64_t)); 1346 read (evfd, &counter, sizeof (uint64_t));
1061 } 1347 }
1062 else 1348 else
1063#endif 1349#endif
1064 { 1350 {
1065 char dummy; 1351 char dummy;
1352 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1066 read (evpipe [0], &dummy, 1); 1353 read (evpipe [0], &dummy, 1);
1067 } 1354 }
1068 1355
1069 if (gotsig && ev_is_default_loop (EV_A)) 1356 if (sig_pending)
1070 { 1357 {
1071 int signum; 1358 sig_pending = 0;
1072 gotsig = 0;
1073 1359
1074 for (signum = signalmax; signum--; ) 1360 for (i = EV_NSIG - 1; i--; )
1075 if (signals [signum].gotsig) 1361 if (expect_false (signals [i].pending))
1076 ev_feed_signal_event (EV_A_ signum + 1); 1362 ev_feed_signal_event (EV_A_ i + 1);
1077 } 1363 }
1078 1364
1079#if EV_ASYNC_ENABLE 1365#if EV_ASYNC_ENABLE
1080 if (gotasync) 1366 if (async_pending)
1081 { 1367 {
1082 int i; 1368 async_pending = 0;
1083 gotasync = 0;
1084 1369
1085 for (i = asynccnt; i--; ) 1370 for (i = asynccnt; i--; )
1086 if (asyncs [i]->sent) 1371 if (asyncs [i]->sent)
1087 { 1372 {
1088 asyncs [i]->sent = 0; 1373 asyncs [i]->sent = 0;
… …
1092#endif 1377#endif
1093} 1378}
1094 1379
1095/*****************************************************************************/ 1380/*****************************************************************************/
1096 1381
1382void
1383ev_feed_signal (int signum)
1384{
1385#if EV_MULTIPLICITY
1386 EV_P = signals [signum - 1].loop;
1387
1388 if (!EV_A)
1389 return;
1390#endif
1391
1392 signals [signum - 1].pending = 1;
1393 evpipe_write (EV_A_ &sig_pending);
1394}
1395
1097static void 1396static void
1098ev_sighandler (int signum) 1397ev_sighandler (int signum)
1099{ 1398{
1100#if EV_MULTIPLICITY
1101 struct ev_loop *loop = &default_loop_struct;
1102#endif
1103
1104#if _WIN32 1399#ifdef _WIN32
1105 signal (signum, ev_sighandler); 1400 signal (signum, ev_sighandler);
1106#endif 1401#endif
1107 1402
1108 signals [signum - 1].gotsig = 1; 1403 ev_feed_signal (signum);
1109 evpipe_write (EV_A_ &gotsig);
1110} 1404}
1111 1405
1112void noinline 1406void noinline
1113ev_feed_signal_event (EV_P_ int signum) 1407ev_feed_signal_event (EV_P_ int signum)
1114{ 1408{
1115 WL w; 1409 WL w;
1116 1410
1411 if (expect_false (signum <= 0 || signum > EV_NSIG))
1412 return;
1413
1414 --signum;
1415
1117#if EV_MULTIPLICITY 1416#if EV_MULTIPLICITY
1118 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1417 /* it is permissible to try to feed a signal to the wrong loop */
1119#endif 1418 /* or, likely more useful, feeding a signal nobody is waiting for */
1120 1419
1121 --signum; 1420 if (expect_false (signals [signum].loop != EV_A))
1122
1123 if (signum < 0 || signum >= signalmax)
1124 return; 1421 return;
1422#endif
1125 1423
1126 signals [signum].gotsig = 0; 1424 signals [signum].pending = 0;
1127 1425
1128 for (w = signals [signum].head; w; w = w->next) 1426 for (w = signals [signum].head; w; w = w->next)
1129 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1427 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1130} 1428}
1131 1429
1430#if EV_USE_SIGNALFD
1431static void
1432sigfdcb (EV_P_ ev_io *iow, int revents)
1433{
1434 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1435
1436 for (;;)
1437 {
1438 ssize_t res = read (sigfd, si, sizeof (si));
1439
1440 /* not ISO-C, as res might be -1, but works with SuS */
1441 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1442 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1443
1444 if (res < (ssize_t)sizeof (si))
1445 break;
1446 }
1447}
1448#endif
1449
1450#endif
1451
1132/*****************************************************************************/ 1452/*****************************************************************************/
1133 1453
1454#if EV_CHILD_ENABLE
1134static WL childs [EV_PID_HASHSIZE]; 1455static WL childs [EV_PID_HASHSIZE];
1135
1136#ifndef _WIN32
1137 1456
1138static ev_signal childev; 1457static ev_signal childev;
1139 1458
1140#ifndef WIFCONTINUED 1459#ifndef WIFCONTINUED
1141# define WIFCONTINUED(status) 0 1460# define WIFCONTINUED(status) 0
1142#endif 1461#endif
1143 1462
1144void inline_speed 1463/* handle a single child status event */
1464inline_speed void
1145child_reap (EV_P_ int chain, int pid, int status) 1465child_reap (EV_P_ int chain, int pid, int status)
1146{ 1466{
1147 ev_child *w; 1467 ev_child *w;
1148 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1468 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1149 1469
1150 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1470 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1151 { 1471 {
1152 if ((w->pid == pid || !w->pid) 1472 if ((w->pid == pid || !w->pid)
1153 && (!traced || (w->flags & 1))) 1473 && (!traced || (w->flags & 1)))
1154 { 1474 {
1155 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1475 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1162 1482
1163#ifndef WCONTINUED 1483#ifndef WCONTINUED
1164# define WCONTINUED 0 1484# define WCONTINUED 0
1165#endif 1485#endif
1166 1486
1487/* called on sigchld etc., calls waitpid */
1167static void 1488static void
1168childcb (EV_P_ ev_signal *sw, int revents) 1489childcb (EV_P_ ev_signal *sw, int revents)
1169{ 1490{
1170 int pid, status; 1491 int pid, status;
1171 1492
… …
1179 /* make sure we are called again until all children have been reaped */ 1500 /* make sure we are called again until all children have been reaped */
1180 /* we need to do it this way so that the callback gets called before we continue */ 1501 /* we need to do it this way so that the callback gets called before we continue */
1181 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1502 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1182 1503
1183 child_reap (EV_A_ pid, pid, status); 1504 child_reap (EV_A_ pid, pid, status);
1184 if (EV_PID_HASHSIZE > 1) 1505 if ((EV_PID_HASHSIZE) > 1)
1185 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1506 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1186} 1507}
1187 1508
1188#endif 1509#endif
1189 1510
1190/*****************************************************************************/ 1511/*****************************************************************************/
1191 1512
1513#if EV_USE_IOCP
1514# include "ev_iocp.c"
1515#endif
1192#if EV_USE_PORT 1516#if EV_USE_PORT
1193# include "ev_port.c" 1517# include "ev_port.c"
1194#endif 1518#endif
1195#if EV_USE_KQUEUE 1519#if EV_USE_KQUEUE
1196# include "ev_kqueue.c" 1520# include "ev_kqueue.c"
… …
1252 /* kqueue is borked on everything but netbsd apparently */ 1576 /* kqueue is borked on everything but netbsd apparently */
1253 /* it usually doesn't work correctly on anything but sockets and pipes */ 1577 /* it usually doesn't work correctly on anything but sockets and pipes */
1254 flags &= ~EVBACKEND_KQUEUE; 1578 flags &= ~EVBACKEND_KQUEUE;
1255#endif 1579#endif
1256#ifdef __APPLE__ 1580#ifdef __APPLE__
1257 // flags &= ~EVBACKEND_KQUEUE; for documentation 1581 /* only select works correctly on that "unix-certified" platform */
1258 flags &= ~EVBACKEND_POLL; 1582 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1583 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1584#endif
1585#ifdef __FreeBSD__
1586 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1259#endif 1587#endif
1260 1588
1261 return flags; 1589 return flags;
1262} 1590}
1263 1591
… …
1265ev_embeddable_backends (void) 1593ev_embeddable_backends (void)
1266{ 1594{
1267 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1595 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1268 1596
1269 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1597 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1270 /* please fix it and tell me how to detect the fix */ 1598 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1271 flags &= ~EVBACKEND_EPOLL; 1599 flags &= ~EVBACKEND_EPOLL;
1272 1600
1273 return flags; 1601 return flags;
1274} 1602}
1275 1603
1276unsigned int 1604unsigned int
1277ev_backend (EV_P) 1605ev_backend (EV_P)
1278{ 1606{
1279 return backend; 1607 return backend;
1280} 1608}
1281 1609
1610#if EV_FEATURE_API
1282unsigned int 1611unsigned int
1283ev_loop_count (EV_P) 1612ev_iteration (EV_P)
1284{ 1613{
1285 return loop_count; 1614 return loop_count;
1286} 1615}
1287 1616
1617unsigned int
1618ev_depth (EV_P)
1619{
1620 return loop_depth;
1621}
1622
1288void 1623void
1289ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1624ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1290{ 1625{
1291 io_blocktime = interval; 1626 io_blocktime = interval;
1292} 1627}
… …
1295ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1630ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1296{ 1631{
1297 timeout_blocktime = interval; 1632 timeout_blocktime = interval;
1298} 1633}
1299 1634
1635void
1636ev_set_userdata (EV_P_ void *data)
1637{
1638 userdata = data;
1639}
1640
1641void *
1642ev_userdata (EV_P)
1643{
1644 return userdata;
1645}
1646
1647void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1648{
1649 invoke_cb = invoke_pending_cb;
1650}
1651
1652void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1653{
1654 release_cb = release;
1655 acquire_cb = acquire;
1656}
1657#endif
1658
1659/* initialise a loop structure, must be zero-initialised */
1300static void noinline 1660static void noinline
1301loop_init (EV_P_ unsigned int flags) 1661loop_init (EV_P_ unsigned int flags)
1302{ 1662{
1303 if (!backend) 1663 if (!backend)
1304 { 1664 {
1665 origflags = flags;
1666
1667#if EV_USE_REALTIME
1668 if (!have_realtime)
1669 {
1670 struct timespec ts;
1671
1672 if (!clock_gettime (CLOCK_REALTIME, &ts))
1673 have_realtime = 1;
1674 }
1675#endif
1676
1305#if EV_USE_MONOTONIC 1677#if EV_USE_MONOTONIC
1678 if (!have_monotonic)
1306 { 1679 {
1307 struct timespec ts; 1680 struct timespec ts;
1681
1308 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1682 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1309 have_monotonic = 1; 1683 have_monotonic = 1;
1310 } 1684 }
1311#endif 1685#endif
1686
1687 /* pid check not overridable via env */
1688#ifndef _WIN32
1689 if (flags & EVFLAG_FORKCHECK)
1690 curpid = getpid ();
1691#endif
1692
1693 if (!(flags & EVFLAG_NOENV)
1694 && !enable_secure ()
1695 && getenv ("LIBEV_FLAGS"))
1696 flags = atoi (getenv ("LIBEV_FLAGS"));
1312 1697
1313 ev_rt_now = ev_time (); 1698 ev_rt_now = ev_time ();
1314 mn_now = get_clock (); 1699 mn_now = get_clock ();
1315 now_floor = mn_now; 1700 now_floor = mn_now;
1316 rtmn_diff = ev_rt_now - mn_now; 1701 rtmn_diff = ev_rt_now - mn_now;
1702#if EV_FEATURE_API
1703 invoke_cb = ev_invoke_pending;
1704#endif
1317 1705
1318 io_blocktime = 0.; 1706 io_blocktime = 0.;
1319 timeout_blocktime = 0.; 1707 timeout_blocktime = 0.;
1320 backend = 0; 1708 backend = 0;
1321 backend_fd = -1; 1709 backend_fd = -1;
1322 gotasync = 0; 1710 sig_pending = 0;
1711#if EV_ASYNC_ENABLE
1712 async_pending = 0;
1713#endif
1323#if EV_USE_INOTIFY 1714#if EV_USE_INOTIFY
1324 fs_fd = -2; 1715 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1325#endif 1716#endif
1326 1717#if EV_USE_SIGNALFD
1327 /* pid check not overridable via env */ 1718 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1328#ifndef _WIN32
1329 if (flags & EVFLAG_FORKCHECK)
1330 curpid = getpid ();
1331#endif 1719#endif
1332 1720
1333 if (!(flags & EVFLAG_NOENV) 1721 if (!(flags & EVBACKEND_MASK))
1334 && !enable_secure ()
1335 && getenv ("LIBEV_FLAGS"))
1336 flags = atoi (getenv ("LIBEV_FLAGS"));
1337
1338 if (!(flags & 0x0000ffffU))
1339 flags |= ev_recommended_backends (); 1722 flags |= ev_recommended_backends ();
1340 1723
1724#if EV_USE_IOCP
1725 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1726#endif
1341#if EV_USE_PORT 1727#if EV_USE_PORT
1342 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1728 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1343#endif 1729#endif
1344#if EV_USE_KQUEUE 1730#if EV_USE_KQUEUE
1345 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1731 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1352#endif 1738#endif
1353#if EV_USE_SELECT 1739#if EV_USE_SELECT
1354 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1740 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1355#endif 1741#endif
1356 1742
1743 ev_prepare_init (&pending_w, pendingcb);
1744
1745#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1357 ev_init (&pipeev, pipecb); 1746 ev_init (&pipe_w, pipecb);
1358 ev_set_priority (&pipeev, EV_MAXPRI); 1747 ev_set_priority (&pipe_w, EV_MAXPRI);
1748#endif
1359 } 1749 }
1360} 1750}
1361 1751
1362static void noinline 1752/* free up a loop structure */
1753void
1363loop_destroy (EV_P) 1754ev_loop_destroy (EV_P)
1364{ 1755{
1365 int i; 1756 int i;
1366 1757
1758#if EV_MULTIPLICITY
1759 /* mimic free (0) */
1760 if (!EV_A)
1761 return;
1762#endif
1763
1764#if EV_CLEANUP_ENABLE
1765 /* queue cleanup watchers (and execute them) */
1766 if (expect_false (cleanupcnt))
1767 {
1768 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1769 EV_INVOKE_PENDING;
1770 }
1771#endif
1772
1773#if EV_CHILD_ENABLE
1774 if (ev_is_active (&childev))
1775 {
1776 ev_ref (EV_A); /* child watcher */
1777 ev_signal_stop (EV_A_ &childev);
1778 }
1779#endif
1780
1367 if (ev_is_active (&pipeev)) 1781 if (ev_is_active (&pipe_w))
1368 { 1782 {
1369 ev_ref (EV_A); /* signal watcher */ 1783 /*ev_ref (EV_A);*/
1370 ev_io_stop (EV_A_ &pipeev); 1784 /*ev_io_stop (EV_A_ &pipe_w);*/
1371 1785
1372#if EV_USE_EVENTFD 1786#if EV_USE_EVENTFD
1373 if (evfd >= 0) 1787 if (evfd >= 0)
1374 close (evfd); 1788 close (evfd);
1375#endif 1789#endif
1376 1790
1377 if (evpipe [0] >= 0) 1791 if (evpipe [0] >= 0)
1378 { 1792 {
1379 close (evpipe [0]); 1793 EV_WIN32_CLOSE_FD (evpipe [0]);
1380 close (evpipe [1]); 1794 EV_WIN32_CLOSE_FD (evpipe [1]);
1381 } 1795 }
1382 } 1796 }
1797
1798#if EV_USE_SIGNALFD
1799 if (ev_is_active (&sigfd_w))
1800 close (sigfd);
1801#endif
1383 1802
1384#if EV_USE_INOTIFY 1803#if EV_USE_INOTIFY
1385 if (fs_fd >= 0) 1804 if (fs_fd >= 0)
1386 close (fs_fd); 1805 close (fs_fd);
1387#endif 1806#endif
1388 1807
1389 if (backend_fd >= 0) 1808 if (backend_fd >= 0)
1390 close (backend_fd); 1809 close (backend_fd);
1391 1810
1811#if EV_USE_IOCP
1812 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1813#endif
1392#if EV_USE_PORT 1814#if EV_USE_PORT
1393 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1815 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1394#endif 1816#endif
1395#if EV_USE_KQUEUE 1817#if EV_USE_KQUEUE
1396 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1818 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1411#if EV_IDLE_ENABLE 1833#if EV_IDLE_ENABLE
1412 array_free (idle, [i]); 1834 array_free (idle, [i]);
1413#endif 1835#endif
1414 } 1836 }
1415 1837
1416 ev_free (anfds); anfdmax = 0; 1838 ev_free (anfds); anfds = 0; anfdmax = 0;
1417 1839
1418 /* have to use the microsoft-never-gets-it-right macro */ 1840 /* have to use the microsoft-never-gets-it-right macro */
1841 array_free (rfeed, EMPTY);
1419 array_free (fdchange, EMPTY); 1842 array_free (fdchange, EMPTY);
1420 array_free (timer, EMPTY); 1843 array_free (timer, EMPTY);
1421#if EV_PERIODIC_ENABLE 1844#if EV_PERIODIC_ENABLE
1422 array_free (periodic, EMPTY); 1845 array_free (periodic, EMPTY);
1423#endif 1846#endif
1424#if EV_FORK_ENABLE 1847#if EV_FORK_ENABLE
1425 array_free (fork, EMPTY); 1848 array_free (fork, EMPTY);
1426#endif 1849#endif
1850#if EV_CLEANUP_ENABLE
1851 array_free (cleanup, EMPTY);
1852#endif
1427 array_free (prepare, EMPTY); 1853 array_free (prepare, EMPTY);
1428 array_free (check, EMPTY); 1854 array_free (check, EMPTY);
1429#if EV_ASYNC_ENABLE 1855#if EV_ASYNC_ENABLE
1430 array_free (async, EMPTY); 1856 array_free (async, EMPTY);
1431#endif 1857#endif
1432 1858
1433 backend = 0; 1859 backend = 0;
1860
1861#if EV_MULTIPLICITY
1862 if (ev_is_default_loop (EV_A))
1863#endif
1864 ev_default_loop_ptr = 0;
1865#if EV_MULTIPLICITY
1866 else
1867 ev_free (EV_A);
1868#endif
1434} 1869}
1435 1870
1436#if EV_USE_INOTIFY 1871#if EV_USE_INOTIFY
1437void inline_size infy_fork (EV_P); 1872inline_size void infy_fork (EV_P);
1438#endif 1873#endif
1439 1874
1440void inline_size 1875inline_size void
1441loop_fork (EV_P) 1876loop_fork (EV_P)
1442{ 1877{
1443#if EV_USE_PORT 1878#if EV_USE_PORT
1444 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1879 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1445#endif 1880#endif
… …
1451#endif 1886#endif
1452#if EV_USE_INOTIFY 1887#if EV_USE_INOTIFY
1453 infy_fork (EV_A); 1888 infy_fork (EV_A);
1454#endif 1889#endif
1455 1890
1456 if (ev_is_active (&pipeev)) 1891 if (ev_is_active (&pipe_w))
1457 { 1892 {
1458 /* this "locks" the handlers against writing to the pipe */ 1893 /* this "locks" the handlers against writing to the pipe */
1459 /* while we modify the fd vars */ 1894 /* while we modify the fd vars */
1460 gotsig = 1; 1895 sig_pending = 1;
1461#if EV_ASYNC_ENABLE 1896#if EV_ASYNC_ENABLE
1462 gotasync = 1; 1897 async_pending = 1;
1463#endif 1898#endif
1464 1899
1465 ev_ref (EV_A); 1900 ev_ref (EV_A);
1466 ev_io_stop (EV_A_ &pipeev); 1901 ev_io_stop (EV_A_ &pipe_w);
1467 1902
1468#if EV_USE_EVENTFD 1903#if EV_USE_EVENTFD
1469 if (evfd >= 0) 1904 if (evfd >= 0)
1470 close (evfd); 1905 close (evfd);
1471#endif 1906#endif
1472 1907
1473 if (evpipe [0] >= 0) 1908 if (evpipe [0] >= 0)
1474 { 1909 {
1475 close (evpipe [0]); 1910 EV_WIN32_CLOSE_FD (evpipe [0]);
1476 close (evpipe [1]); 1911 EV_WIN32_CLOSE_FD (evpipe [1]);
1477 } 1912 }
1478 1913
1914#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1479 evpipe_init (EV_A); 1915 evpipe_init (EV_A);
1480 /* now iterate over everything, in case we missed something */ 1916 /* now iterate over everything, in case we missed something */
1481 pipecb (EV_A_ &pipeev, EV_READ); 1917 pipecb (EV_A_ &pipe_w, EV_READ);
1918#endif
1482 } 1919 }
1483 1920
1484 postfork = 0; 1921 postfork = 0;
1485} 1922}
1486 1923
1487#if EV_MULTIPLICITY 1924#if EV_MULTIPLICITY
1488 1925
1489struct ev_loop * 1926struct ev_loop *
1490ev_loop_new (unsigned int flags) 1927ev_loop_new (unsigned int flags)
1491{ 1928{
1492 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1929 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1493 1930
1494 memset (loop, 0, sizeof (struct ev_loop)); 1931 memset (EV_A, 0, sizeof (struct ev_loop));
1495
1496 loop_init (EV_A_ flags); 1932 loop_init (EV_A_ flags);
1497 1933
1498 if (ev_backend (EV_A)) 1934 if (ev_backend (EV_A))
1499 return loop; 1935 return EV_A;
1500 1936
1937 ev_free (EV_A);
1501 return 0; 1938 return 0;
1502} 1939}
1503 1940
1504void 1941#endif /* multiplicity */
1505ev_loop_destroy (EV_P)
1506{
1507 loop_destroy (EV_A);
1508 ev_free (loop);
1509}
1510
1511void
1512ev_loop_fork (EV_P)
1513{
1514 postfork = 1; /* must be in line with ev_default_fork */
1515}
1516 1942
1517#if EV_VERIFY 1943#if EV_VERIFY
1518static void 1944static void noinline
1945verify_watcher (EV_P_ W w)
1946{
1947 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1948
1949 if (w->pending)
1950 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1951}
1952
1953static void noinline
1954verify_heap (EV_P_ ANHE *heap, int N)
1955{
1956 int i;
1957
1958 for (i = HEAP0; i < N + HEAP0; ++i)
1959 {
1960 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1961 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1962 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1963
1964 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1965 }
1966}
1967
1968static void noinline
1519array_check (W **ws, int cnt) 1969array_verify (EV_P_ W *ws, int cnt)
1520{ 1970{
1521 while (cnt--) 1971 while (cnt--)
1972 {
1522 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1973 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1974 verify_watcher (EV_A_ ws [cnt]);
1975 }
1523} 1976}
1524#endif 1977#endif
1525 1978
1979#if EV_FEATURE_API
1526void 1980void
1527ev_loop_verify (EV_P) 1981ev_verify (EV_P)
1528{ 1982{
1529#if EV_VERIFY 1983#if EV_VERIFY
1530 int i; 1984 int i;
1985 WL w;
1531 1986
1987 assert (activecnt >= -1);
1988
1989 assert (fdchangemax >= fdchangecnt);
1990 for (i = 0; i < fdchangecnt; ++i)
1991 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1992
1993 assert (anfdmax >= 0);
1994 for (i = 0; i < anfdmax; ++i)
1995 for (w = anfds [i].head; w; w = w->next)
1996 {
1997 verify_watcher (EV_A_ (W)w);
1998 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1999 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2000 }
2001
2002 assert (timermax >= timercnt);
1532 checkheap (timers, timercnt); 2003 verify_heap (EV_A_ timers, timercnt);
2004
1533#if EV_PERIODIC_ENABLE 2005#if EV_PERIODIC_ENABLE
2006 assert (periodicmax >= periodiccnt);
1534 checkheap (periodics, periodiccnt); 2007 verify_heap (EV_A_ periodics, periodiccnt);
1535#endif 2008#endif
1536 2009
2010 for (i = NUMPRI; i--; )
2011 {
2012 assert (pendingmax [i] >= pendingcnt [i]);
1537#if EV_IDLE_ENABLE 2013#if EV_IDLE_ENABLE
1538 for (i = NUMPRI; i--; ) 2014 assert (idleall >= 0);
2015 assert (idlemax [i] >= idlecnt [i]);
1539 array_check ((W **)idles [i], idlecnt [i]); 2016 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1540#endif 2017#endif
2018 }
2019
1541#if EV_FORK_ENABLE 2020#if EV_FORK_ENABLE
2021 assert (forkmax >= forkcnt);
1542 array_check ((W **)forks, forkcnt); 2022 array_verify (EV_A_ (W *)forks, forkcnt);
1543#endif 2023#endif
2024
2025#if EV_CLEANUP_ENABLE
2026 assert (cleanupmax >= cleanupcnt);
2027 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2028#endif
2029
1544#if EV_ASYNC_ENABLE 2030#if EV_ASYNC_ENABLE
2031 assert (asyncmax >= asynccnt);
1545 array_check ((W **)asyncs, asynccnt); 2032 array_verify (EV_A_ (W *)asyncs, asynccnt);
2033#endif
2034
2035#if EV_PREPARE_ENABLE
2036 assert (preparemax >= preparecnt);
2037 array_verify (EV_A_ (W *)prepares, preparecnt);
2038#endif
2039
2040#if EV_CHECK_ENABLE
2041 assert (checkmax >= checkcnt);
2042 array_verify (EV_A_ (W *)checks, checkcnt);
2043#endif
2044
2045# if 0
2046#if EV_CHILD_ENABLE
2047 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
2048 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2049#endif
1546#endif 2050# endif
1547 array_check ((W **)prepares, preparecnt);
1548 array_check ((W **)checks, checkcnt);
1549#endif 2051#endif
1550} 2052}
1551 2053#endif
1552#endif /* multiplicity */
1553 2054
1554#if EV_MULTIPLICITY 2055#if EV_MULTIPLICITY
1555struct ev_loop * 2056struct ev_loop *
1556ev_default_loop_init (unsigned int flags)
1557#else 2057#else
1558int 2058int
2059#endif
1559ev_default_loop (unsigned int flags) 2060ev_default_loop (unsigned int flags)
1560#endif
1561{ 2061{
1562 if (!ev_default_loop_ptr) 2062 if (!ev_default_loop_ptr)
1563 { 2063 {
1564#if EV_MULTIPLICITY 2064#if EV_MULTIPLICITY
1565 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2065 EV_P = ev_default_loop_ptr = &default_loop_struct;
1566#else 2066#else
1567 ev_default_loop_ptr = 1; 2067 ev_default_loop_ptr = 1;
1568#endif 2068#endif
1569 2069
1570 loop_init (EV_A_ flags); 2070 loop_init (EV_A_ flags);
1571 2071
1572 if (ev_backend (EV_A)) 2072 if (ev_backend (EV_A))
1573 { 2073 {
1574#ifndef _WIN32 2074#if EV_CHILD_ENABLE
1575 ev_signal_init (&childev, childcb, SIGCHLD); 2075 ev_signal_init (&childev, childcb, SIGCHLD);
1576 ev_set_priority (&childev, EV_MAXPRI); 2076 ev_set_priority (&childev, EV_MAXPRI);
1577 ev_signal_start (EV_A_ &childev); 2077 ev_signal_start (EV_A_ &childev);
1578 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2078 ev_unref (EV_A); /* child watcher should not keep loop alive */
1579#endif 2079#endif
… …
1584 2084
1585 return ev_default_loop_ptr; 2085 return ev_default_loop_ptr;
1586} 2086}
1587 2087
1588void 2088void
1589ev_default_destroy (void) 2089ev_loop_fork (EV_P)
1590{ 2090{
1591#if EV_MULTIPLICITY
1592 struct ev_loop *loop = ev_default_loop_ptr;
1593#endif
1594
1595#ifndef _WIN32
1596 ev_ref (EV_A); /* child watcher */
1597 ev_signal_stop (EV_A_ &childev);
1598#endif
1599
1600 loop_destroy (EV_A);
1601}
1602
1603void
1604ev_default_fork (void)
1605{
1606#if EV_MULTIPLICITY
1607 struct ev_loop *loop = ev_default_loop_ptr;
1608#endif
1609
1610 if (backend)
1611 postfork = 1; /* must be in line with ev_loop_fork */ 2091 postfork = 1; /* must be in line with ev_default_fork */
1612} 2092}
1613 2093
1614/*****************************************************************************/ 2094/*****************************************************************************/
1615 2095
1616void 2096void
1617ev_invoke (EV_P_ void *w, int revents) 2097ev_invoke (EV_P_ void *w, int revents)
1618{ 2098{
1619 EV_CB_INVOKE ((W)w, revents); 2099 EV_CB_INVOKE ((W)w, revents);
1620} 2100}
1621 2101
1622void inline_speed 2102unsigned int
1623call_pending (EV_P) 2103ev_pending_count (EV_P)
2104{
2105 int pri;
2106 unsigned int count = 0;
2107
2108 for (pri = NUMPRI; pri--; )
2109 count += pendingcnt [pri];
2110
2111 return count;
2112}
2113
2114void noinline
2115ev_invoke_pending (EV_P)
1624{ 2116{
1625 int pri; 2117 int pri;
1626 2118
1627 for (pri = NUMPRI; pri--; ) 2119 for (pri = NUMPRI; pri--; )
1628 while (pendingcnt [pri]) 2120 while (pendingcnt [pri])
1629 { 2121 {
1630 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2122 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1631 2123
1632 if (expect_true (p->w))
1633 {
1634 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1635
1636 p->w->pending = 0; 2124 p->w->pending = 0;
1637 EV_CB_INVOKE (p->w, p->events); 2125 EV_CB_INVOKE (p->w, p->events);
1638 EV_FREQUENT_CHECK; 2126 EV_FREQUENT_CHECK;
1639 }
1640 } 2127 }
1641} 2128}
1642 2129
1643#if EV_IDLE_ENABLE 2130#if EV_IDLE_ENABLE
1644void inline_size 2131/* make idle watchers pending. this handles the "call-idle */
2132/* only when higher priorities are idle" logic */
2133inline_size void
1645idle_reify (EV_P) 2134idle_reify (EV_P)
1646{ 2135{
1647 if (expect_false (idleall)) 2136 if (expect_false (idleall))
1648 { 2137 {
1649 int pri; 2138 int pri;
… …
1661 } 2150 }
1662 } 2151 }
1663} 2152}
1664#endif 2153#endif
1665 2154
1666void inline_size 2155/* make timers pending */
2156inline_size void
1667timers_reify (EV_P) 2157timers_reify (EV_P)
1668{ 2158{
1669 EV_FREQUENT_CHECK; 2159 EV_FREQUENT_CHECK;
1670 2160
1671 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2161 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1672 { 2162 {
1673 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2163 do
1674
1675 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1676
1677 /* first reschedule or stop timer */
1678 if (w->repeat)
1679 { 2164 {
2165 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2166
2167 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2168
2169 /* first reschedule or stop timer */
2170 if (w->repeat)
2171 {
1680 ev_at (w) += w->repeat; 2172 ev_at (w) += w->repeat;
1681 if (ev_at (w) < mn_now) 2173 if (ev_at (w) < mn_now)
1682 ev_at (w) = mn_now; 2174 ev_at (w) = mn_now;
1683 2175
1684 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 2176 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1685 2177
1686 ANHE_at_cache (timers [HEAP0]); 2178 ANHE_at_cache (timers [HEAP0]);
1687 downheap (timers, timercnt, HEAP0); 2179 downheap (timers, timercnt, HEAP0);
2180 }
2181 else
2182 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2183
2184 EV_FREQUENT_CHECK;
2185 feed_reverse (EV_A_ (W)w);
1688 } 2186 }
1689 else 2187 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1690 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1691 2188
1692 EV_FREQUENT_CHECK; 2189 feed_reverse_done (EV_A_ EV_TIMER);
1693 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1694 } 2190 }
1695} 2191}
1696 2192
1697#if EV_PERIODIC_ENABLE 2193#if EV_PERIODIC_ENABLE
1698void inline_size 2194/* make periodics pending */
2195inline_size void
1699periodics_reify (EV_P) 2196periodics_reify (EV_P)
1700{ 2197{
1701 EV_FREQUENT_CHECK; 2198 EV_FREQUENT_CHECK;
1702 2199
1703 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2200 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1704 { 2201 {
1705 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2202 int feed_count = 0;
1706 2203
1707 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2204 do
1708
1709 /* first reschedule or stop timer */
1710 if (w->reschedule_cb)
1711 { 2205 {
2206 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2207
2208 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2209
2210 /* first reschedule or stop timer */
2211 if (w->reschedule_cb)
2212 {
1712 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2213 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1713 2214
1714 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 2215 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1715 2216
1716 ANHE_at_cache (periodics [HEAP0]); 2217 ANHE_at_cache (periodics [HEAP0]);
1717 downheap (periodics, periodiccnt, HEAP0); 2218 downheap (periodics, periodiccnt, HEAP0);
2219 }
2220 else if (w->interval)
2221 {
2222 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2223 /* if next trigger time is not sufficiently in the future, put it there */
2224 /* this might happen because of floating point inexactness */
2225 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2226 {
2227 ev_at (w) += w->interval;
2228
2229 /* if interval is unreasonably low we might still have a time in the past */
2230 /* so correct this. this will make the periodic very inexact, but the user */
2231 /* has effectively asked to get triggered more often than possible */
2232 if (ev_at (w) < ev_rt_now)
2233 ev_at (w) = ev_rt_now;
2234 }
2235
2236 ANHE_at_cache (periodics [HEAP0]);
2237 downheap (periodics, periodiccnt, HEAP0);
2238 }
2239 else
2240 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2241
2242 EV_FREQUENT_CHECK;
2243 feed_reverse (EV_A_ (W)w);
1718 } 2244 }
1719 else if (w->interval) 2245 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1720 {
1721 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1722 /* if next trigger time is not sufficiently in the future, put it there */
1723 /* this might happen because of floating point inexactness */
1724 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1725 {
1726 ev_at (w) += w->interval;
1727 2246
1728 /* if interval is unreasonably low we might still have a time in the past */
1729 /* so correct this. this will make the periodic very inexact, but the user */
1730 /* has effectively asked to get triggered more often than possible */
1731 if (ev_at (w) < ev_rt_now)
1732 ev_at (w) = ev_rt_now;
1733 }
1734
1735 ANHE_at_cache (periodics [HEAP0]);
1736 downheap (periodics, periodiccnt, HEAP0);
1737 }
1738 else
1739 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1740
1741 EV_FREQUENT_CHECK;
1742 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2247 feed_reverse_done (EV_A_ EV_PERIODIC);
1743 } 2248 }
1744} 2249}
1745 2250
2251/* simply recalculate all periodics */
2252/* TODO: maybe ensure that at least one event happens when jumping forward? */
1746static void noinline 2253static void noinline
1747periodics_reschedule (EV_P) 2254periodics_reschedule (EV_P)
1748{ 2255{
1749 int i; 2256 int i;
1750 2257
… …
1763 2270
1764 reheap (periodics, periodiccnt); 2271 reheap (periodics, periodiccnt);
1765} 2272}
1766#endif 2273#endif
1767 2274
1768void inline_speed 2275/* adjust all timers by a given offset */
2276static void noinline
2277timers_reschedule (EV_P_ ev_tstamp adjust)
2278{
2279 int i;
2280
2281 for (i = 0; i < timercnt; ++i)
2282 {
2283 ANHE *he = timers + i + HEAP0;
2284 ANHE_w (*he)->at += adjust;
2285 ANHE_at_cache (*he);
2286 }
2287}
2288
2289/* fetch new monotonic and realtime times from the kernel */
2290/* also detect if there was a timejump, and act accordingly */
2291inline_speed void
1769time_update (EV_P_ ev_tstamp max_block) 2292time_update (EV_P_ ev_tstamp max_block)
1770{ 2293{
1771 int i;
1772
1773#if EV_USE_MONOTONIC 2294#if EV_USE_MONOTONIC
1774 if (expect_true (have_monotonic)) 2295 if (expect_true (have_monotonic))
1775 { 2296 {
2297 int i;
1776 ev_tstamp odiff = rtmn_diff; 2298 ev_tstamp odiff = rtmn_diff;
1777 2299
1778 mn_now = get_clock (); 2300 mn_now = get_clock ();
1779 2301
1780 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2302 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1806 ev_rt_now = ev_time (); 2328 ev_rt_now = ev_time ();
1807 mn_now = get_clock (); 2329 mn_now = get_clock ();
1808 now_floor = mn_now; 2330 now_floor = mn_now;
1809 } 2331 }
1810 2332
2333 /* no timer adjustment, as the monotonic clock doesn't jump */
2334 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1811# if EV_PERIODIC_ENABLE 2335# if EV_PERIODIC_ENABLE
1812 periodics_reschedule (EV_A); 2336 periodics_reschedule (EV_A);
1813# endif 2337# endif
1814 /* no timer adjustment, as the monotonic clock doesn't jump */
1815 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1816 } 2338 }
1817 else 2339 else
1818#endif 2340#endif
1819 { 2341 {
1820 ev_rt_now = ev_time (); 2342 ev_rt_now = ev_time ();
1821 2343
1822 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2344 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1823 { 2345 {
2346 /* adjust timers. this is easy, as the offset is the same for all of them */
2347 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1824#if EV_PERIODIC_ENABLE 2348#if EV_PERIODIC_ENABLE
1825 periodics_reschedule (EV_A); 2349 periodics_reschedule (EV_A);
1826#endif 2350#endif
1827 /* adjust timers. this is easy, as the offset is the same for all of them */
1828 for (i = 0; i < timercnt; ++i)
1829 {
1830 ANHE *he = timers + i + HEAP0;
1831 ANHE_w (*he)->at += ev_rt_now - mn_now;
1832 ANHE_at_cache (*he);
1833 }
1834 } 2351 }
1835 2352
1836 mn_now = ev_rt_now; 2353 mn_now = ev_rt_now;
1837 } 2354 }
1838} 2355}
1839 2356
1840void 2357void
1841ev_ref (EV_P)
1842{
1843 ++activecnt;
1844}
1845
1846void
1847ev_unref (EV_P)
1848{
1849 --activecnt;
1850}
1851
1852static int loop_done;
1853
1854void
1855ev_loop (EV_P_ int flags) 2358ev_run (EV_P_ int flags)
1856{ 2359{
2360#if EV_FEATURE_API
2361 ++loop_depth;
2362#endif
2363
2364 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2365
1857 loop_done = EVUNLOOP_CANCEL; 2366 loop_done = EVBREAK_CANCEL;
1858 2367
1859 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2368 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1860 2369
1861 do 2370 do
1862 { 2371 {
1863#if EV_VERIFY >= 2 2372#if EV_VERIFY >= 2
1864 ev_loop_verify (EV_A); 2373 ev_verify (EV_A);
1865#endif 2374#endif
1866 2375
1867#ifndef _WIN32 2376#ifndef _WIN32
1868 if (expect_false (curpid)) /* penalise the forking check even more */ 2377 if (expect_false (curpid)) /* penalise the forking check even more */
1869 if (expect_false (getpid () != curpid)) 2378 if (expect_false (getpid () != curpid))
… …
1877 /* we might have forked, so queue fork handlers */ 2386 /* we might have forked, so queue fork handlers */
1878 if (expect_false (postfork)) 2387 if (expect_false (postfork))
1879 if (forkcnt) 2388 if (forkcnt)
1880 { 2389 {
1881 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2390 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1882 call_pending (EV_A); 2391 EV_INVOKE_PENDING;
1883 } 2392 }
1884#endif 2393#endif
1885 2394
2395#if EV_PREPARE_ENABLE
1886 /* queue prepare watchers (and execute them) */ 2396 /* queue prepare watchers (and execute them) */
1887 if (expect_false (preparecnt)) 2397 if (expect_false (preparecnt))
1888 { 2398 {
1889 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2399 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1890 call_pending (EV_A); 2400 EV_INVOKE_PENDING;
1891 } 2401 }
2402#endif
1892 2403
1893 if (expect_false (!activecnt)) 2404 if (expect_false (loop_done))
1894 break; 2405 break;
1895 2406
1896 /* we might have forked, so reify kernel state if necessary */ 2407 /* we might have forked, so reify kernel state if necessary */
1897 if (expect_false (postfork)) 2408 if (expect_false (postfork))
1898 loop_fork (EV_A); 2409 loop_fork (EV_A);
… …
1903 /* calculate blocking time */ 2414 /* calculate blocking time */
1904 { 2415 {
1905 ev_tstamp waittime = 0.; 2416 ev_tstamp waittime = 0.;
1906 ev_tstamp sleeptime = 0.; 2417 ev_tstamp sleeptime = 0.;
1907 2418
2419 /* remember old timestamp for io_blocktime calculation */
2420 ev_tstamp prev_mn_now = mn_now;
2421
2422 /* update time to cancel out callback processing overhead */
2423 time_update (EV_A_ 1e100);
2424
1908 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2425 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
1909 { 2426 {
1910 /* update time to cancel out callback processing overhead */
1911 time_update (EV_A_ 1e100);
1912
1913 waittime = MAX_BLOCKTIME; 2427 waittime = MAX_BLOCKTIME;
1914 2428
1915 if (timercnt) 2429 if (timercnt)
1916 { 2430 {
1917 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2431 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
1924 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2438 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1925 if (waittime > to) waittime = to; 2439 if (waittime > to) waittime = to;
1926 } 2440 }
1927#endif 2441#endif
1928 2442
2443 /* don't let timeouts decrease the waittime below timeout_blocktime */
1929 if (expect_false (waittime < timeout_blocktime)) 2444 if (expect_false (waittime < timeout_blocktime))
1930 waittime = timeout_blocktime; 2445 waittime = timeout_blocktime;
1931 2446
1932 sleeptime = waittime - backend_fudge; 2447 /* extra check because io_blocktime is commonly 0 */
1933
1934 if (expect_true (sleeptime > io_blocktime)) 2448 if (expect_false (io_blocktime))
1935 sleeptime = io_blocktime;
1936
1937 if (sleeptime)
1938 { 2449 {
2450 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2451
2452 if (sleeptime > waittime - backend_fudge)
2453 sleeptime = waittime - backend_fudge;
2454
2455 if (expect_true (sleeptime > 0.))
2456 {
1939 ev_sleep (sleeptime); 2457 ev_sleep (sleeptime);
1940 waittime -= sleeptime; 2458 waittime -= sleeptime;
2459 }
1941 } 2460 }
1942 } 2461 }
1943 2462
2463#if EV_FEATURE_API
1944 ++loop_count; 2464 ++loop_count;
2465#endif
2466 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
1945 backend_poll (EV_A_ waittime); 2467 backend_poll (EV_A_ waittime);
2468 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
1946 2469
1947 /* update ev_rt_now, do magic */ 2470 /* update ev_rt_now, do magic */
1948 time_update (EV_A_ waittime + sleeptime); 2471 time_update (EV_A_ waittime + sleeptime);
1949 } 2472 }
1950 2473
… …
1957#if EV_IDLE_ENABLE 2480#if EV_IDLE_ENABLE
1958 /* queue idle watchers unless other events are pending */ 2481 /* queue idle watchers unless other events are pending */
1959 idle_reify (EV_A); 2482 idle_reify (EV_A);
1960#endif 2483#endif
1961 2484
2485#if EV_CHECK_ENABLE
1962 /* queue check watchers, to be executed first */ 2486 /* queue check watchers, to be executed first */
1963 if (expect_false (checkcnt)) 2487 if (expect_false (checkcnt))
1964 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2488 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2489#endif
1965 2490
1966 call_pending (EV_A); 2491 EV_INVOKE_PENDING;
1967 } 2492 }
1968 while (expect_true ( 2493 while (expect_true (
1969 activecnt 2494 activecnt
1970 && !loop_done 2495 && !loop_done
1971 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2496 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
1972 )); 2497 ));
1973 2498
1974 if (loop_done == EVUNLOOP_ONE) 2499 if (loop_done == EVBREAK_ONE)
1975 loop_done = EVUNLOOP_CANCEL; 2500 loop_done = EVBREAK_CANCEL;
1976}
1977 2501
2502#if EV_FEATURE_API
2503 --loop_depth;
2504#endif
2505}
2506
1978void 2507void
1979ev_unloop (EV_P_ int how) 2508ev_break (EV_P_ int how)
1980{ 2509{
1981 loop_done = how; 2510 loop_done = how;
1982} 2511}
1983 2512
2513void
2514ev_ref (EV_P)
2515{
2516 ++activecnt;
2517}
2518
2519void
2520ev_unref (EV_P)
2521{
2522 --activecnt;
2523}
2524
2525void
2526ev_now_update (EV_P)
2527{
2528 time_update (EV_A_ 1e100);
2529}
2530
2531void
2532ev_suspend (EV_P)
2533{
2534 ev_now_update (EV_A);
2535}
2536
2537void
2538ev_resume (EV_P)
2539{
2540 ev_tstamp mn_prev = mn_now;
2541
2542 ev_now_update (EV_A);
2543 timers_reschedule (EV_A_ mn_now - mn_prev);
2544#if EV_PERIODIC_ENABLE
2545 /* TODO: really do this? */
2546 periodics_reschedule (EV_A);
2547#endif
2548}
2549
1984/*****************************************************************************/ 2550/*****************************************************************************/
2551/* singly-linked list management, used when the expected list length is short */
1985 2552
1986void inline_size 2553inline_size void
1987wlist_add (WL *head, WL elem) 2554wlist_add (WL *head, WL elem)
1988{ 2555{
1989 elem->next = *head; 2556 elem->next = *head;
1990 *head = elem; 2557 *head = elem;
1991} 2558}
1992 2559
1993void inline_size 2560inline_size void
1994wlist_del (WL *head, WL elem) 2561wlist_del (WL *head, WL elem)
1995{ 2562{
1996 while (*head) 2563 while (*head)
1997 { 2564 {
1998 if (*head == elem) 2565 if (expect_true (*head == elem))
1999 { 2566 {
2000 *head = elem->next; 2567 *head = elem->next;
2001 return; 2568 break;
2002 } 2569 }
2003 2570
2004 head = &(*head)->next; 2571 head = &(*head)->next;
2005 } 2572 }
2006} 2573}
2007 2574
2008void inline_speed 2575/* internal, faster, version of ev_clear_pending */
2576inline_speed void
2009clear_pending (EV_P_ W w) 2577clear_pending (EV_P_ W w)
2010{ 2578{
2011 if (w->pending) 2579 if (w->pending)
2012 { 2580 {
2013 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2581 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2014 w->pending = 0; 2582 w->pending = 0;
2015 } 2583 }
2016} 2584}
2017 2585
2018int 2586int
… …
2022 int pending = w_->pending; 2590 int pending = w_->pending;
2023 2591
2024 if (expect_true (pending)) 2592 if (expect_true (pending))
2025 { 2593 {
2026 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2594 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2595 p->w = (W)&pending_w;
2027 w_->pending = 0; 2596 w_->pending = 0;
2028 p->w = 0;
2029 return p->events; 2597 return p->events;
2030 } 2598 }
2031 else 2599 else
2032 return 0; 2600 return 0;
2033} 2601}
2034 2602
2035void inline_size 2603inline_size void
2036pri_adjust (EV_P_ W w) 2604pri_adjust (EV_P_ W w)
2037{ 2605{
2038 int pri = w->priority; 2606 int pri = ev_priority (w);
2039 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2607 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2040 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2608 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2041 w->priority = pri; 2609 ev_set_priority (w, pri);
2042} 2610}
2043 2611
2044void inline_speed 2612inline_speed void
2045ev_start (EV_P_ W w, int active) 2613ev_start (EV_P_ W w, int active)
2046{ 2614{
2047 pri_adjust (EV_A_ w); 2615 pri_adjust (EV_A_ w);
2048 w->active = active; 2616 w->active = active;
2049 ev_ref (EV_A); 2617 ev_ref (EV_A);
2050} 2618}
2051 2619
2052void inline_size 2620inline_size void
2053ev_stop (EV_P_ W w) 2621ev_stop (EV_P_ W w)
2054{ 2622{
2055 ev_unref (EV_A); 2623 ev_unref (EV_A);
2056 w->active = 0; 2624 w->active = 0;
2057} 2625}
… …
2064 int fd = w->fd; 2632 int fd = w->fd;
2065 2633
2066 if (expect_false (ev_is_active (w))) 2634 if (expect_false (ev_is_active (w)))
2067 return; 2635 return;
2068 2636
2069 assert (("ev_io_start called with negative fd", fd >= 0)); 2637 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2638 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2070 2639
2071 EV_FREQUENT_CHECK; 2640 EV_FREQUENT_CHECK;
2072 2641
2073 ev_start (EV_A_ (W)w, 1); 2642 ev_start (EV_A_ (W)w, 1);
2074 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2643 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2075 wlist_add (&anfds[fd].head, (WL)w); 2644 wlist_add (&anfds[fd].head, (WL)w);
2076 2645
2077 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2646 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2078 w->events &= ~EV_IOFDSET; 2647 w->events &= ~EV__IOFDSET;
2079 2648
2080 EV_FREQUENT_CHECK; 2649 EV_FREQUENT_CHECK;
2081} 2650}
2082 2651
2083void noinline 2652void noinline
… …
2085{ 2654{
2086 clear_pending (EV_A_ (W)w); 2655 clear_pending (EV_A_ (W)w);
2087 if (expect_false (!ev_is_active (w))) 2656 if (expect_false (!ev_is_active (w)))
2088 return; 2657 return;
2089 2658
2090 assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2659 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2091 2660
2092 EV_FREQUENT_CHECK; 2661 EV_FREQUENT_CHECK;
2093 2662
2094 wlist_del (&anfds[w->fd].head, (WL)w); 2663 wlist_del (&anfds[w->fd].head, (WL)w);
2095 ev_stop (EV_A_ (W)w); 2664 ev_stop (EV_A_ (W)w);
2096 2665
2097 fd_change (EV_A_ w->fd, 1); 2666 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2098 2667
2099 EV_FREQUENT_CHECK; 2668 EV_FREQUENT_CHECK;
2100} 2669}
2101 2670
2102void noinline 2671void noinline
… …
2105 if (expect_false (ev_is_active (w))) 2674 if (expect_false (ev_is_active (w)))
2106 return; 2675 return;
2107 2676
2108 ev_at (w) += mn_now; 2677 ev_at (w) += mn_now;
2109 2678
2110 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2679 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2111 2680
2112 EV_FREQUENT_CHECK; 2681 EV_FREQUENT_CHECK;
2113 2682
2114 ++timercnt; 2683 ++timercnt;
2115 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 2684 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
… …
2118 ANHE_at_cache (timers [ev_active (w)]); 2687 ANHE_at_cache (timers [ev_active (w)]);
2119 upheap (timers, ev_active (w)); 2688 upheap (timers, ev_active (w));
2120 2689
2121 EV_FREQUENT_CHECK; 2690 EV_FREQUENT_CHECK;
2122 2691
2123 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 2692 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2124} 2693}
2125 2694
2126void noinline 2695void noinline
2127ev_timer_stop (EV_P_ ev_timer *w) 2696ev_timer_stop (EV_P_ ev_timer *w)
2128{ 2697{
… …
2133 EV_FREQUENT_CHECK; 2702 EV_FREQUENT_CHECK;
2134 2703
2135 { 2704 {
2136 int active = ev_active (w); 2705 int active = ev_active (w);
2137 2706
2138 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 2707 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2139 2708
2140 --timercnt; 2709 --timercnt;
2141 2710
2142 if (expect_true (active < timercnt + HEAP0)) 2711 if (expect_true (active < timercnt + HEAP0))
2143 { 2712 {
2144 timers [active] = timers [timercnt + HEAP0]; 2713 timers [active] = timers [timercnt + HEAP0];
2145 adjustheap (timers, timercnt, active); 2714 adjustheap (timers, timercnt, active);
2146 } 2715 }
2147 } 2716 }
2148 2717
2149 EV_FREQUENT_CHECK;
2150
2151 ev_at (w) -= mn_now; 2718 ev_at (w) -= mn_now;
2152 2719
2153 ev_stop (EV_A_ (W)w); 2720 ev_stop (EV_A_ (W)w);
2721
2722 EV_FREQUENT_CHECK;
2154} 2723}
2155 2724
2156void noinline 2725void noinline
2157ev_timer_again (EV_P_ ev_timer *w) 2726ev_timer_again (EV_P_ ev_timer *w)
2158{ 2727{
… …
2176 } 2745 }
2177 2746
2178 EV_FREQUENT_CHECK; 2747 EV_FREQUENT_CHECK;
2179} 2748}
2180 2749
2750ev_tstamp
2751ev_timer_remaining (EV_P_ ev_timer *w)
2752{
2753 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2754}
2755
2181#if EV_PERIODIC_ENABLE 2756#if EV_PERIODIC_ENABLE
2182void noinline 2757void noinline
2183ev_periodic_start (EV_P_ ev_periodic *w) 2758ev_periodic_start (EV_P_ ev_periodic *w)
2184{ 2759{
2185 if (expect_false (ev_is_active (w))) 2760 if (expect_false (ev_is_active (w)))
… …
2187 2762
2188 if (w->reschedule_cb) 2763 if (w->reschedule_cb)
2189 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2764 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2190 else if (w->interval) 2765 else if (w->interval)
2191 { 2766 {
2192 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2767 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2193 /* this formula differs from the one in periodic_reify because we do not always round up */ 2768 /* this formula differs from the one in periodic_reify because we do not always round up */
2194 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2769 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2195 } 2770 }
2196 else 2771 else
2197 ev_at (w) = w->offset; 2772 ev_at (w) = w->offset;
… …
2205 ANHE_at_cache (periodics [ev_active (w)]); 2780 ANHE_at_cache (periodics [ev_active (w)]);
2206 upheap (periodics, ev_active (w)); 2781 upheap (periodics, ev_active (w));
2207 2782
2208 EV_FREQUENT_CHECK; 2783 EV_FREQUENT_CHECK;
2209 2784
2210 /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 2785 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2211} 2786}
2212 2787
2213void noinline 2788void noinline
2214ev_periodic_stop (EV_P_ ev_periodic *w) 2789ev_periodic_stop (EV_P_ ev_periodic *w)
2215{ 2790{
… …
2220 EV_FREQUENT_CHECK; 2795 EV_FREQUENT_CHECK;
2221 2796
2222 { 2797 {
2223 int active = ev_active (w); 2798 int active = ev_active (w);
2224 2799
2225 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 2800 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2226 2801
2227 --periodiccnt; 2802 --periodiccnt;
2228 2803
2229 if (expect_true (active < periodiccnt + HEAP0)) 2804 if (expect_true (active < periodiccnt + HEAP0))
2230 { 2805 {
2231 periodics [active] = periodics [periodiccnt + HEAP0]; 2806 periodics [active] = periodics [periodiccnt + HEAP0];
2232 adjustheap (periodics, periodiccnt, active); 2807 adjustheap (periodics, periodiccnt, active);
2233 } 2808 }
2234 } 2809 }
2235 2810
2236 EV_FREQUENT_CHECK;
2237
2238 ev_stop (EV_A_ (W)w); 2811 ev_stop (EV_A_ (W)w);
2812
2813 EV_FREQUENT_CHECK;
2239} 2814}
2240 2815
2241void noinline 2816void noinline
2242ev_periodic_again (EV_P_ ev_periodic *w) 2817ev_periodic_again (EV_P_ ev_periodic *w)
2243{ 2818{
… …
2249 2824
2250#ifndef SA_RESTART 2825#ifndef SA_RESTART
2251# define SA_RESTART 0 2826# define SA_RESTART 0
2252#endif 2827#endif
2253 2828
2829#if EV_SIGNAL_ENABLE
2830
2254void noinline 2831void noinline
2255ev_signal_start (EV_P_ ev_signal *w) 2832ev_signal_start (EV_P_ ev_signal *w)
2256{ 2833{
2257#if EV_MULTIPLICITY
2258 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2259#endif
2260 if (expect_false (ev_is_active (w))) 2834 if (expect_false (ev_is_active (w)))
2261 return; 2835 return;
2262 2836
2263 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2837 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2264 2838
2265 evpipe_init (EV_A); 2839#if EV_MULTIPLICITY
2840 assert (("libev: a signal must not be attached to two different loops",
2841 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2266 2842
2267 EV_FREQUENT_CHECK; 2843 signals [w->signum - 1].loop = EV_A;
2844#endif
2268 2845
2846 EV_FREQUENT_CHECK;
2847
2848#if EV_USE_SIGNALFD
2849 if (sigfd == -2)
2269 { 2850 {
2270#ifndef _WIN32 2851 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2271 sigset_t full, prev; 2852 if (sigfd < 0 && errno == EINVAL)
2272 sigfillset (&full); 2853 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2273 sigprocmask (SIG_SETMASK, &full, &prev);
2274#endif
2275 2854
2276 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2855 if (sigfd >= 0)
2856 {
2857 fd_intern (sigfd); /* doing it twice will not hurt */
2277 2858
2278#ifndef _WIN32 2859 sigemptyset (&sigfd_set);
2279 sigprocmask (SIG_SETMASK, &prev, 0); 2860
2280#endif 2861 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2862 ev_set_priority (&sigfd_w, EV_MAXPRI);
2863 ev_io_start (EV_A_ &sigfd_w);
2864 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2865 }
2281 } 2866 }
2867
2868 if (sigfd >= 0)
2869 {
2870 /* TODO: check .head */
2871 sigaddset (&sigfd_set, w->signum);
2872 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2873
2874 signalfd (sigfd, &sigfd_set, 0);
2875 }
2876#endif
2282 2877
2283 ev_start (EV_A_ (W)w, 1); 2878 ev_start (EV_A_ (W)w, 1);
2284 wlist_add (&signals [w->signum - 1].head, (WL)w); 2879 wlist_add (&signals [w->signum - 1].head, (WL)w);
2285 2880
2286 if (!((WL)w)->next) 2881 if (!((WL)w)->next)
2882# if EV_USE_SIGNALFD
2883 if (sigfd < 0) /*TODO*/
2884# endif
2287 { 2885 {
2288#if _WIN32 2886# ifdef _WIN32
2887 evpipe_init (EV_A);
2888
2289 signal (w->signum, ev_sighandler); 2889 signal (w->signum, ev_sighandler);
2290#else 2890# else
2291 struct sigaction sa; 2891 struct sigaction sa;
2892
2893 evpipe_init (EV_A);
2894
2292 sa.sa_handler = ev_sighandler; 2895 sa.sa_handler = ev_sighandler;
2293 sigfillset (&sa.sa_mask); 2896 sigfillset (&sa.sa_mask);
2294 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2897 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2295 sigaction (w->signum, &sa, 0); 2898 sigaction (w->signum, &sa, 0);
2899
2900 if (origflags & EVFLAG_NOSIGMASK)
2901 {
2902 sigemptyset (&sa.sa_mask);
2903 sigaddset (&sa.sa_mask, w->signum);
2904 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2905 }
2296#endif 2906#endif
2297 } 2907 }
2298 2908
2299 EV_FREQUENT_CHECK; 2909 EV_FREQUENT_CHECK;
2300} 2910}
2301 2911
2302void noinline 2912void noinline
… …
2310 2920
2311 wlist_del (&signals [w->signum - 1].head, (WL)w); 2921 wlist_del (&signals [w->signum - 1].head, (WL)w);
2312 ev_stop (EV_A_ (W)w); 2922 ev_stop (EV_A_ (W)w);
2313 2923
2314 if (!signals [w->signum - 1].head) 2924 if (!signals [w->signum - 1].head)
2925 {
2926#if EV_MULTIPLICITY
2927 signals [w->signum - 1].loop = 0; /* unattach from signal */
2928#endif
2929#if EV_USE_SIGNALFD
2930 if (sigfd >= 0)
2931 {
2932 sigset_t ss;
2933
2934 sigemptyset (&ss);
2935 sigaddset (&ss, w->signum);
2936 sigdelset (&sigfd_set, w->signum);
2937
2938 signalfd (sigfd, &sigfd_set, 0);
2939 sigprocmask (SIG_UNBLOCK, &ss, 0);
2940 }
2941 else
2942#endif
2315 signal (w->signum, SIG_DFL); 2943 signal (w->signum, SIG_DFL);
2944 }
2316 2945
2317 EV_FREQUENT_CHECK; 2946 EV_FREQUENT_CHECK;
2318} 2947}
2948
2949#endif
2950
2951#if EV_CHILD_ENABLE
2319 2952
2320void 2953void
2321ev_child_start (EV_P_ ev_child *w) 2954ev_child_start (EV_P_ ev_child *w)
2322{ 2955{
2323#if EV_MULTIPLICITY 2956#if EV_MULTIPLICITY
2324 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2957 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2325#endif 2958#endif
2326 if (expect_false (ev_is_active (w))) 2959 if (expect_false (ev_is_active (w)))
2327 return; 2960 return;
2328 2961
2329 EV_FREQUENT_CHECK; 2962 EV_FREQUENT_CHECK;
2330 2963
2331 ev_start (EV_A_ (W)w, 1); 2964 ev_start (EV_A_ (W)w, 1);
2332 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2965 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2333 2966
2334 EV_FREQUENT_CHECK; 2967 EV_FREQUENT_CHECK;
2335} 2968}
2336 2969
2337void 2970void
… …
2341 if (expect_false (!ev_is_active (w))) 2974 if (expect_false (!ev_is_active (w)))
2342 return; 2975 return;
2343 2976
2344 EV_FREQUENT_CHECK; 2977 EV_FREQUENT_CHECK;
2345 2978
2346 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2979 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2347 ev_stop (EV_A_ (W)w); 2980 ev_stop (EV_A_ (W)w);
2348 2981
2349 EV_FREQUENT_CHECK; 2982 EV_FREQUENT_CHECK;
2350} 2983}
2984
2985#endif
2351 2986
2352#if EV_STAT_ENABLE 2987#if EV_STAT_ENABLE
2353 2988
2354# ifdef _WIN32 2989# ifdef _WIN32
2355# undef lstat 2990# undef lstat
2356# define lstat(a,b) _stati64 (a,b) 2991# define lstat(a,b) _stati64 (a,b)
2357# endif 2992# endif
2358 2993
2359#define DEF_STAT_INTERVAL 5.0074891 2994#define DEF_STAT_INTERVAL 5.0074891
2995#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2360#define MIN_STAT_INTERVAL 0.1074891 2996#define MIN_STAT_INTERVAL 0.1074891
2361 2997
2362static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2998static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2363 2999
2364#if EV_USE_INOTIFY 3000#if EV_USE_INOTIFY
2365# define EV_INOTIFY_BUFSIZE 8192 3001
3002/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3003# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2366 3004
2367static void noinline 3005static void noinline
2368infy_add (EV_P_ ev_stat *w) 3006infy_add (EV_P_ ev_stat *w)
2369{ 3007{
2370 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); 3008 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);
2371 3009
2372 if (w->wd < 0) 3010 if (w->wd >= 0)
3011 {
3012 struct statfs sfs;
3013
3014 /* now local changes will be tracked by inotify, but remote changes won't */
3015 /* unless the filesystem is known to be local, we therefore still poll */
3016 /* also do poll on <2.6.25, but with normal frequency */
3017
3018 if (!fs_2625)
3019 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3020 else if (!statfs (w->path, &sfs)
3021 && (sfs.f_type == 0x1373 /* devfs */
3022 || sfs.f_type == 0xEF53 /* ext2/3 */
3023 || sfs.f_type == 0x3153464a /* jfs */
3024 || sfs.f_type == 0x52654973 /* reiser3 */
3025 || sfs.f_type == 0x01021994 /* tempfs */
3026 || sfs.f_type == 0x58465342 /* xfs */))
3027 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3028 else
3029 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2373 { 3030 }
2374 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 3031 else
3032 {
3033 /* can't use inotify, continue to stat */
3034 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2375 3035
2376 /* monitor some parent directory for speedup hints */ 3036 /* if path is not there, monitor some parent directory for speedup hints */
2377 /* note that exceeding the hardcoded limit is not a correctness issue, */ 3037 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2378 /* but an efficiency issue only */ 3038 /* but an efficiency issue only */
2379 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3039 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2380 { 3040 {
2381 char path [4096]; 3041 char path [4096];
2382 strcpy (path, w->path); 3042 strcpy (path, w->path);
… …
2386 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 3046 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2387 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 3047 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2388 3048
2389 char *pend = strrchr (path, '/'); 3049 char *pend = strrchr (path, '/');
2390 3050
2391 if (!pend) 3051 if (!pend || pend == path)
2392 break; /* whoops, no '/', complain to your admin */ 3052 break;
2393 3053
2394 *pend = 0; 3054 *pend = 0;
2395 w->wd = inotify_add_watch (fs_fd, path, mask); 3055 w->wd = inotify_add_watch (fs_fd, path, mask);
2396 } 3056 }
2397 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3057 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2398 } 3058 }
2399 } 3059 }
2400 else
2401 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2402 3060
2403 if (w->wd >= 0) 3061 if (w->wd >= 0)
2404 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3062 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
3063
3064 /* now re-arm timer, if required */
3065 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3066 ev_timer_again (EV_A_ &w->timer);
3067 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2405} 3068}
2406 3069
2407static void noinline 3070static void noinline
2408infy_del (EV_P_ ev_stat *w) 3071infy_del (EV_P_ ev_stat *w)
2409{ 3072{
… …
2412 3075
2413 if (wd < 0) 3076 if (wd < 0)
2414 return; 3077 return;
2415 3078
2416 w->wd = -2; 3079 w->wd = -2;
2417 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3080 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2418 wlist_del (&fs_hash [slot].head, (WL)w); 3081 wlist_del (&fs_hash [slot].head, (WL)w);
2419 3082
2420 /* remove this watcher, if others are watching it, they will rearm */ 3083 /* remove this watcher, if others are watching it, they will rearm */
2421 inotify_rm_watch (fs_fd, wd); 3084 inotify_rm_watch (fs_fd, wd);
2422} 3085}
2423 3086
2424static void noinline 3087static void noinline
2425infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3088infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2426{ 3089{
2427 if (slot < 0) 3090 if (slot < 0)
2428 /* overflow, need to check for all hahs slots */ 3091 /* overflow, need to check for all hash slots */
2429 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3092 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2430 infy_wd (EV_A_ slot, wd, ev); 3093 infy_wd (EV_A_ slot, wd, ev);
2431 else 3094 else
2432 { 3095 {
2433 WL w_; 3096 WL w_;
2434 3097
2435 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3098 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2436 { 3099 {
2437 ev_stat *w = (ev_stat *)w_; 3100 ev_stat *w = (ev_stat *)w_;
2438 w_ = w_->next; /* lets us remove this watcher and all before it */ 3101 w_ = w_->next; /* lets us remove this watcher and all before it */
2439 3102
2440 if (w->wd == wd || wd == -1) 3103 if (w->wd == wd || wd == -1)
2441 { 3104 {
2442 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3105 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2443 { 3106 {
3107 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2444 w->wd = -1; 3108 w->wd = -1;
2445 infy_add (EV_A_ w); /* re-add, no matter what */ 3109 infy_add (EV_A_ w); /* re-add, no matter what */
2446 } 3110 }
2447 3111
2448 stat_timer_cb (EV_A_ &w->timer, 0); 3112 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2453 3117
2454static void 3118static void
2455infy_cb (EV_P_ ev_io *w, int revents) 3119infy_cb (EV_P_ ev_io *w, int revents)
2456{ 3120{
2457 char buf [EV_INOTIFY_BUFSIZE]; 3121 char buf [EV_INOTIFY_BUFSIZE];
2458 struct inotify_event *ev = (struct inotify_event *)buf;
2459 int ofs; 3122 int ofs;
2460 int len = read (fs_fd, buf, sizeof (buf)); 3123 int len = read (fs_fd, buf, sizeof (buf));
2461 3124
2462 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3125 for (ofs = 0; ofs < len; )
3126 {
3127 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2463 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3128 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3129 ofs += sizeof (struct inotify_event) + ev->len;
3130 }
2464} 3131}
2465 3132
2466void inline_size 3133inline_size void
3134ev_check_2625 (EV_P)
3135{
3136 /* kernels < 2.6.25 are borked
3137 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3138 */
3139 if (ev_linux_version () < 0x020619)
3140 return;
3141
3142 fs_2625 = 1;
3143}
3144
3145inline_size int
3146infy_newfd (void)
3147{
3148#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3149 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3150 if (fd >= 0)
3151 return fd;
3152#endif
3153 return inotify_init ();
3154}
3155
3156inline_size void
2467infy_init (EV_P) 3157infy_init (EV_P)
2468{ 3158{
2469 if (fs_fd != -2) 3159 if (fs_fd != -2)
2470 return; 3160 return;
2471 3161
3162 fs_fd = -1;
3163
3164 ev_check_2625 (EV_A);
3165
2472 fs_fd = inotify_init (); 3166 fs_fd = infy_newfd ();
2473 3167
2474 if (fs_fd >= 0) 3168 if (fs_fd >= 0)
2475 { 3169 {
3170 fd_intern (fs_fd);
2476 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3171 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2477 ev_set_priority (&fs_w, EV_MAXPRI); 3172 ev_set_priority (&fs_w, EV_MAXPRI);
2478 ev_io_start (EV_A_ &fs_w); 3173 ev_io_start (EV_A_ &fs_w);
3174 ev_unref (EV_A);
2479 } 3175 }
2480} 3176}
2481 3177
2482void inline_size 3178inline_size void
2483infy_fork (EV_P) 3179infy_fork (EV_P)
2484{ 3180{
2485 int slot; 3181 int slot;
2486 3182
2487 if (fs_fd < 0) 3183 if (fs_fd < 0)
2488 return; 3184 return;
2489 3185
3186 ev_ref (EV_A);
3187 ev_io_stop (EV_A_ &fs_w);
2490 close (fs_fd); 3188 close (fs_fd);
2491 fs_fd = inotify_init (); 3189 fs_fd = infy_newfd ();
2492 3190
3191 if (fs_fd >= 0)
3192 {
3193 fd_intern (fs_fd);
3194 ev_io_set (&fs_w, fs_fd, EV_READ);
3195 ev_io_start (EV_A_ &fs_w);
3196 ev_unref (EV_A);
3197 }
3198
2493 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3199 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2494 { 3200 {
2495 WL w_ = fs_hash [slot].head; 3201 WL w_ = fs_hash [slot].head;
2496 fs_hash [slot].head = 0; 3202 fs_hash [slot].head = 0;
2497 3203
2498 while (w_) 3204 while (w_)
… …
2503 w->wd = -1; 3209 w->wd = -1;
2504 3210
2505 if (fs_fd >= 0) 3211 if (fs_fd >= 0)
2506 infy_add (EV_A_ w); /* re-add, no matter what */ 3212 infy_add (EV_A_ w); /* re-add, no matter what */
2507 else 3213 else
3214 {
3215 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3216 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2508 ev_timer_start (EV_A_ &w->timer); 3217 ev_timer_again (EV_A_ &w->timer);
3218 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3219 }
2509 } 3220 }
2510
2511 } 3221 }
2512} 3222}
2513 3223
3224#endif
3225
3226#ifdef _WIN32
3227# define EV_LSTAT(p,b) _stati64 (p, b)
3228#else
3229# define EV_LSTAT(p,b) lstat (p, b)
2514#endif 3230#endif
2515 3231
2516void 3232void
2517ev_stat_stat (EV_P_ ev_stat *w) 3233ev_stat_stat (EV_P_ ev_stat *w)
2518{ 3234{
… …
2525static void noinline 3241static void noinline
2526stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3242stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2527{ 3243{
2528 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3244 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2529 3245
2530 /* we copy this here each the time so that */ 3246 ev_statdata prev = w->attr;
2531 /* prev has the old value when the callback gets invoked */
2532 w->prev = w->attr;
2533 ev_stat_stat (EV_A_ w); 3247 ev_stat_stat (EV_A_ w);
2534 3248
2535 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3249 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2536 if ( 3250 if (
2537 w->prev.st_dev != w->attr.st_dev 3251 prev.st_dev != w->attr.st_dev
2538 || w->prev.st_ino != w->attr.st_ino 3252 || prev.st_ino != w->attr.st_ino
2539 || w->prev.st_mode != w->attr.st_mode 3253 || prev.st_mode != w->attr.st_mode
2540 || w->prev.st_nlink != w->attr.st_nlink 3254 || prev.st_nlink != w->attr.st_nlink
2541 || w->prev.st_uid != w->attr.st_uid 3255 || prev.st_uid != w->attr.st_uid
2542 || w->prev.st_gid != w->attr.st_gid 3256 || prev.st_gid != w->attr.st_gid
2543 || w->prev.st_rdev != w->attr.st_rdev 3257 || prev.st_rdev != w->attr.st_rdev
2544 || w->prev.st_size != w->attr.st_size 3258 || prev.st_size != w->attr.st_size
2545 || w->prev.st_atime != w->attr.st_atime 3259 || prev.st_atime != w->attr.st_atime
2546 || w->prev.st_mtime != w->attr.st_mtime 3260 || prev.st_mtime != w->attr.st_mtime
2547 || w->prev.st_ctime != w->attr.st_ctime 3261 || prev.st_ctime != w->attr.st_ctime
2548 ) { 3262 ) {
3263 /* we only update w->prev on actual differences */
3264 /* in case we test more often than invoke the callback, */
3265 /* to ensure that prev is always different to attr */
3266 w->prev = prev;
3267
2549 #if EV_USE_INOTIFY 3268 #if EV_USE_INOTIFY
3269 if (fs_fd >= 0)
3270 {
2550 infy_del (EV_A_ w); 3271 infy_del (EV_A_ w);
2551 infy_add (EV_A_ w); 3272 infy_add (EV_A_ w);
2552 ev_stat_stat (EV_A_ w); /* avoid race... */ 3273 ev_stat_stat (EV_A_ w); /* avoid race... */
3274 }
2553 #endif 3275 #endif
2554 3276
2555 ev_feed_event (EV_A_ w, EV_STAT); 3277 ev_feed_event (EV_A_ w, EV_STAT);
2556 } 3278 }
2557} 3279}
… …
2560ev_stat_start (EV_P_ ev_stat *w) 3282ev_stat_start (EV_P_ ev_stat *w)
2561{ 3283{
2562 if (expect_false (ev_is_active (w))) 3284 if (expect_false (ev_is_active (w)))
2563 return; 3285 return;
2564 3286
2565 /* since we use memcmp, we need to clear any padding data etc. */
2566 memset (&w->prev, 0, sizeof (ev_statdata));
2567 memset (&w->attr, 0, sizeof (ev_statdata));
2568
2569 ev_stat_stat (EV_A_ w); 3287 ev_stat_stat (EV_A_ w);
2570 3288
3289 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2571 if (w->interval < MIN_STAT_INTERVAL) 3290 w->interval = MIN_STAT_INTERVAL;
2572 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2573 3291
2574 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3292 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2575 ev_set_priority (&w->timer, ev_priority (w)); 3293 ev_set_priority (&w->timer, ev_priority (w));
2576 3294
2577#if EV_USE_INOTIFY 3295#if EV_USE_INOTIFY
2578 infy_init (EV_A); 3296 infy_init (EV_A);
2579 3297
2580 if (fs_fd >= 0) 3298 if (fs_fd >= 0)
2581 infy_add (EV_A_ w); 3299 infy_add (EV_A_ w);
2582 else 3300 else
2583#endif 3301#endif
3302 {
2584 ev_timer_start (EV_A_ &w->timer); 3303 ev_timer_again (EV_A_ &w->timer);
3304 ev_unref (EV_A);
3305 }
2585 3306
2586 ev_start (EV_A_ (W)w, 1); 3307 ev_start (EV_A_ (W)w, 1);
2587 3308
2588 EV_FREQUENT_CHECK; 3309 EV_FREQUENT_CHECK;
2589} 3310}
… …
2598 EV_FREQUENT_CHECK; 3319 EV_FREQUENT_CHECK;
2599 3320
2600#if EV_USE_INOTIFY 3321#if EV_USE_INOTIFY
2601 infy_del (EV_A_ w); 3322 infy_del (EV_A_ w);
2602#endif 3323#endif
3324
3325 if (ev_is_active (&w->timer))
3326 {
3327 ev_ref (EV_A);
2603 ev_timer_stop (EV_A_ &w->timer); 3328 ev_timer_stop (EV_A_ &w->timer);
3329 }
2604 3330
2605 ev_stop (EV_A_ (W)w); 3331 ev_stop (EV_A_ (W)w);
2606 3332
2607 EV_FREQUENT_CHECK; 3333 EV_FREQUENT_CHECK;
2608} 3334}
… …
2653 3379
2654 EV_FREQUENT_CHECK; 3380 EV_FREQUENT_CHECK;
2655} 3381}
2656#endif 3382#endif
2657 3383
3384#if EV_PREPARE_ENABLE
2658void 3385void
2659ev_prepare_start (EV_P_ ev_prepare *w) 3386ev_prepare_start (EV_P_ ev_prepare *w)
2660{ 3387{
2661 if (expect_false (ev_is_active (w))) 3388 if (expect_false (ev_is_active (w)))
2662 return; 3389 return;
… …
2688 3415
2689 ev_stop (EV_A_ (W)w); 3416 ev_stop (EV_A_ (W)w);
2690 3417
2691 EV_FREQUENT_CHECK; 3418 EV_FREQUENT_CHECK;
2692} 3419}
3420#endif
2693 3421
3422#if EV_CHECK_ENABLE
2694void 3423void
2695ev_check_start (EV_P_ ev_check *w) 3424ev_check_start (EV_P_ ev_check *w)
2696{ 3425{
2697 if (expect_false (ev_is_active (w))) 3426 if (expect_false (ev_is_active (w)))
2698 return; 3427 return;
… …
2724 3453
2725 ev_stop (EV_A_ (W)w); 3454 ev_stop (EV_A_ (W)w);
2726 3455
2727 EV_FREQUENT_CHECK; 3456 EV_FREQUENT_CHECK;
2728} 3457}
3458#endif
2729 3459
2730#if EV_EMBED_ENABLE 3460#if EV_EMBED_ENABLE
2731void noinline 3461void noinline
2732ev_embed_sweep (EV_P_ ev_embed *w) 3462ev_embed_sweep (EV_P_ ev_embed *w)
2733{ 3463{
2734 ev_loop (w->other, EVLOOP_NONBLOCK); 3464 ev_run (w->other, EVRUN_NOWAIT);
2735} 3465}
2736 3466
2737static void 3467static void
2738embed_io_cb (EV_P_ ev_io *io, int revents) 3468embed_io_cb (EV_P_ ev_io *io, int revents)
2739{ 3469{
2740 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3470 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2741 3471
2742 if (ev_cb (w)) 3472 if (ev_cb (w))
2743 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3473 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2744 else 3474 else
2745 ev_loop (w->other, EVLOOP_NONBLOCK); 3475 ev_run (w->other, EVRUN_NOWAIT);
2746} 3476}
2747 3477
2748static void 3478static void
2749embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3479embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2750{ 3480{
2751 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3481 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2752 3482
2753 { 3483 {
2754 struct ev_loop *loop = w->other; 3484 EV_P = w->other;
2755 3485
2756 while (fdchangecnt) 3486 while (fdchangecnt)
2757 { 3487 {
2758 fd_reify (EV_A); 3488 fd_reify (EV_A);
2759 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3489 ev_run (EV_A_ EVRUN_NOWAIT);
2760 } 3490 }
2761 } 3491 }
3492}
3493
3494static void
3495embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3496{
3497 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3498
3499 ev_embed_stop (EV_A_ w);
3500
3501 {
3502 EV_P = w->other;
3503
3504 ev_loop_fork (EV_A);
3505 ev_run (EV_A_ EVRUN_NOWAIT);
3506 }
3507
3508 ev_embed_start (EV_A_ w);
2762} 3509}
2763 3510
2764#if 0 3511#if 0
2765static void 3512static void
2766embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3513embed_idle_cb (EV_P_ ev_idle *idle, int revents)
… …
2774{ 3521{
2775 if (expect_false (ev_is_active (w))) 3522 if (expect_false (ev_is_active (w)))
2776 return; 3523 return;
2777 3524
2778 { 3525 {
2779 struct ev_loop *loop = w->other; 3526 EV_P = w->other;
2780 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3527 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2781 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3528 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2782 } 3529 }
2783 3530
2784 EV_FREQUENT_CHECK; 3531 EV_FREQUENT_CHECK;
2785 3532
… …
2788 3535
2789 ev_prepare_init (&w->prepare, embed_prepare_cb); 3536 ev_prepare_init (&w->prepare, embed_prepare_cb);
2790 ev_set_priority (&w->prepare, EV_MINPRI); 3537 ev_set_priority (&w->prepare, EV_MINPRI);
2791 ev_prepare_start (EV_A_ &w->prepare); 3538 ev_prepare_start (EV_A_ &w->prepare);
2792 3539
3540 ev_fork_init (&w->fork, embed_fork_cb);
3541 ev_fork_start (EV_A_ &w->fork);
3542
2793 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 3543 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2794 3544
2795 ev_start (EV_A_ (W)w, 1); 3545 ev_start (EV_A_ (W)w, 1);
2796 3546
2797 EV_FREQUENT_CHECK; 3547 EV_FREQUENT_CHECK;
… …
2804 if (expect_false (!ev_is_active (w))) 3554 if (expect_false (!ev_is_active (w)))
2805 return; 3555 return;
2806 3556
2807 EV_FREQUENT_CHECK; 3557 EV_FREQUENT_CHECK;
2808 3558
2809 ev_io_stop (EV_A_ &w->io); 3559 ev_io_stop (EV_A_ &w->io);
2810 ev_prepare_stop (EV_A_ &w->prepare); 3560 ev_prepare_stop (EV_A_ &w->prepare);
3561 ev_fork_stop (EV_A_ &w->fork);
2811 3562
2812 ev_stop (EV_A_ (W)w); 3563 ev_stop (EV_A_ (W)w);
2813 3564
2814 EV_FREQUENT_CHECK; 3565 EV_FREQUENT_CHECK;
2815} 3566}
… …
2851 3602
2852 EV_FREQUENT_CHECK; 3603 EV_FREQUENT_CHECK;
2853} 3604}
2854#endif 3605#endif
2855 3606
2856#if EV_ASYNC_ENABLE 3607#if EV_CLEANUP_ENABLE
2857void 3608void
2858ev_async_start (EV_P_ ev_async *w) 3609ev_cleanup_start (EV_P_ ev_cleanup *w)
2859{ 3610{
2860 if (expect_false (ev_is_active (w))) 3611 if (expect_false (ev_is_active (w)))
2861 return; 3612 return;
3613
3614 EV_FREQUENT_CHECK;
3615
3616 ev_start (EV_A_ (W)w, ++cleanupcnt);
3617 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3618 cleanups [cleanupcnt - 1] = w;
3619
3620 /* cleanup watchers should never keep a refcount on the loop */
3621 ev_unref (EV_A);
3622 EV_FREQUENT_CHECK;
3623}
3624
3625void
3626ev_cleanup_stop (EV_P_ ev_cleanup *w)
3627{
3628 clear_pending (EV_A_ (W)w);
3629 if (expect_false (!ev_is_active (w)))
3630 return;
3631
3632 EV_FREQUENT_CHECK;
3633 ev_ref (EV_A);
3634
3635 {
3636 int active = ev_active (w);
3637
3638 cleanups [active - 1] = cleanups [--cleanupcnt];
3639 ev_active (cleanups [active - 1]) = active;
3640 }
3641
3642 ev_stop (EV_A_ (W)w);
3643
3644 EV_FREQUENT_CHECK;
3645}
3646#endif
3647
3648#if EV_ASYNC_ENABLE
3649void
3650ev_async_start (EV_P_ ev_async *w)
3651{
3652 if (expect_false (ev_is_active (w)))
3653 return;
3654
3655 w->sent = 0;
2862 3656
2863 evpipe_init (EV_A); 3657 evpipe_init (EV_A);
2864 3658
2865 EV_FREQUENT_CHECK; 3659 EV_FREQUENT_CHECK;
2866 3660
… …
2894 3688
2895void 3689void
2896ev_async_send (EV_P_ ev_async *w) 3690ev_async_send (EV_P_ ev_async *w)
2897{ 3691{
2898 w->sent = 1; 3692 w->sent = 1;
2899 evpipe_write (EV_A_ &gotasync); 3693 evpipe_write (EV_A_ &async_pending);
2900} 3694}
2901#endif 3695#endif
2902 3696
2903/*****************************************************************************/ 3697/*****************************************************************************/
2904 3698
… …
2914once_cb (EV_P_ struct ev_once *once, int revents) 3708once_cb (EV_P_ struct ev_once *once, int revents)
2915{ 3709{
2916 void (*cb)(int revents, void *arg) = once->cb; 3710 void (*cb)(int revents, void *arg) = once->cb;
2917 void *arg = once->arg; 3711 void *arg = once->arg;
2918 3712
2919 ev_io_stop (EV_A_ &once->io); 3713 ev_io_stop (EV_A_ &once->io);
2920 ev_timer_stop (EV_A_ &once->to); 3714 ev_timer_stop (EV_A_ &once->to);
2921 ev_free (once); 3715 ev_free (once);
2922 3716
2923 cb (revents, arg); 3717 cb (revents, arg);
2924} 3718}
2925 3719
2926static void 3720static void
2927once_cb_io (EV_P_ ev_io *w, int revents) 3721once_cb_io (EV_P_ ev_io *w, int revents)
2928{ 3722{
2929 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3723 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3724
3725 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2930} 3726}
2931 3727
2932static void 3728static void
2933once_cb_to (EV_P_ ev_timer *w, int revents) 3729once_cb_to (EV_P_ ev_timer *w, int revents)
2934{ 3730{
2935 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3731 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3732
3733 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2936} 3734}
2937 3735
2938void 3736void
2939ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3737ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2940{ 3738{
2941 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3739 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
2942 3740
2943 if (expect_false (!once)) 3741 if (expect_false (!once))
2944 { 3742 {
2945 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3743 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
2946 return; 3744 return;
2947 } 3745 }
2948 3746
2949 once->cb = cb; 3747 once->cb = cb;
2950 once->arg = arg; 3748 once->arg = arg;
… …
2962 ev_timer_set (&once->to, timeout, 0.); 3760 ev_timer_set (&once->to, timeout, 0.);
2963 ev_timer_start (EV_A_ &once->to); 3761 ev_timer_start (EV_A_ &once->to);
2964 } 3762 }
2965} 3763}
2966 3764
3765/*****************************************************************************/
3766
3767#if EV_WALK_ENABLE
3768void
3769ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3770{
3771 int i, j;
3772 ev_watcher_list *wl, *wn;
3773
3774 if (types & (EV_IO | EV_EMBED))
3775 for (i = 0; i < anfdmax; ++i)
3776 for (wl = anfds [i].head; wl; )
3777 {
3778 wn = wl->next;
3779
3780#if EV_EMBED_ENABLE
3781 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3782 {
3783 if (types & EV_EMBED)
3784 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3785 }
3786 else
3787#endif
3788#if EV_USE_INOTIFY
3789 if (ev_cb ((ev_io *)wl) == infy_cb)
3790 ;
3791 else
3792#endif
3793 if ((ev_io *)wl != &pipe_w)
3794 if (types & EV_IO)
3795 cb (EV_A_ EV_IO, wl);
3796
3797 wl = wn;
3798 }
3799
3800 if (types & (EV_TIMER | EV_STAT))
3801 for (i = timercnt + HEAP0; i-- > HEAP0; )
3802#if EV_STAT_ENABLE
3803 /*TODO: timer is not always active*/
3804 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3805 {
3806 if (types & EV_STAT)
3807 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3808 }
3809 else
3810#endif
3811 if (types & EV_TIMER)
3812 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3813
3814#if EV_PERIODIC_ENABLE
3815 if (types & EV_PERIODIC)
3816 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3817 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3818#endif
3819
3820#if EV_IDLE_ENABLE
3821 if (types & EV_IDLE)
3822 for (j = NUMPRI; i--; )
3823 for (i = idlecnt [j]; i--; )
3824 cb (EV_A_ EV_IDLE, idles [j][i]);
3825#endif
3826
3827#if EV_FORK_ENABLE
3828 if (types & EV_FORK)
3829 for (i = forkcnt; i--; )
3830 if (ev_cb (forks [i]) != embed_fork_cb)
3831 cb (EV_A_ EV_FORK, forks [i]);
3832#endif
3833
3834#if EV_ASYNC_ENABLE
3835 if (types & EV_ASYNC)
3836 for (i = asynccnt; i--; )
3837 cb (EV_A_ EV_ASYNC, asyncs [i]);
3838#endif
3839
3840#if EV_PREPARE_ENABLE
3841 if (types & EV_PREPARE)
3842 for (i = preparecnt; i--; )
3843# if EV_EMBED_ENABLE
3844 if (ev_cb (prepares [i]) != embed_prepare_cb)
3845# endif
3846 cb (EV_A_ EV_PREPARE, prepares [i]);
3847#endif
3848
3849#if EV_CHECK_ENABLE
3850 if (types & EV_CHECK)
3851 for (i = checkcnt; i--; )
3852 cb (EV_A_ EV_CHECK, checks [i]);
3853#endif
3854
3855#if EV_SIGNAL_ENABLE
3856 if (types & EV_SIGNAL)
3857 for (i = 0; i < EV_NSIG - 1; ++i)
3858 for (wl = signals [i].head; wl; )
3859 {
3860 wn = wl->next;
3861 cb (EV_A_ EV_SIGNAL, wl);
3862 wl = wn;
3863 }
3864#endif
3865
3866#if EV_CHILD_ENABLE
3867 if (types & EV_CHILD)
3868 for (i = (EV_PID_HASHSIZE); i--; )
3869 for (wl = childs [i]; wl; )
3870 {
3871 wn = wl->next;
3872 cb (EV_A_ EV_CHILD, wl);
3873 wl = wn;
3874 }
3875#endif
3876/* EV_STAT 0x00001000 /* stat data changed */
3877/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3878}
3879#endif
3880
2967#if EV_MULTIPLICITY 3881#if EV_MULTIPLICITY
2968 #include "ev_wrap.h" 3882 #include "ev_wrap.h"
2969#endif 3883#endif
2970 3884
2971#ifdef __cplusplus 3885EV_CPP(})
2972}
2973#endif
2974 3886

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