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Comparing libev/ev.c (file contents):
Revision 1.295 by root, Wed Jul 8 04:29:31 2009 UTC vs.
Revision 1.366 by root, Mon Jan 10 01:58:54 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
… …
77# ifndef EV_USE_REALTIME 73# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 74# define EV_USE_REALTIME 0
79# endif 75# endif
80# endif 76# endif
81 77
78# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 79# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 80# define EV_USE_NANOSLEEP EV_FEATURE_OS
81# endif
85# else 82# else
83# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 84# define EV_USE_NANOSLEEP 0
85# endif
86
87# if HAVE_SELECT && HAVE_SYS_SELECT_H
88# ifndef EV_USE_SELECT
89# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 90# endif
91# else
92# undef EV_USE_SELECT
93# define EV_USE_SELECT 0
88# endif 94# endif
89 95
96# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 97# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 98# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 99# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 100# else
101# undef EV_USE_POLL
102# define EV_USE_POLL 0 102# define EV_USE_POLL 0
103# endif
104# endif 103# endif
105 104
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 106# ifndef EV_USE_EPOLL
109# else 107# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 108# endif
109# else
110# undef EV_USE_EPOLL
111# define EV_USE_EPOLL 0
112# endif 112# endif
113 113
114# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 115# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 117# endif
118# else
119# undef EV_USE_KQUEUE
120# define EV_USE_KQUEUE 0
120# endif 121# endif
121 122
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 123# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 124# ifndef EV_USE_PORT
125# else 125# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 126# endif
127# else
128# undef EV_USE_PORT
129# define EV_USE_PORT 0
128# endif 130# endif
129 131
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 132# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 133# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 135# endif
136# else
137# undef EV_USE_INOTIFY
138# define EV_USE_INOTIFY 0
136# endif 139# endif
137 140
141# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138# ifndef EV_USE_EVENTFD 142# ifndef EV_USE_SIGNALFD
139# if HAVE_EVENTFD 143# define EV_USE_SIGNALFD EV_FEATURE_OS
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# 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
144# endif 157# endif
145 158
146#endif 159#endif
147 160
148#include <math.h> 161#include <math.h>
149#include <stdlib.h> 162#include <stdlib.h>
163#include <string.h>
150#include <fcntl.h> 164#include <fcntl.h>
151#include <stddef.h> 165#include <stddef.h>
152 166
153#include <stdio.h> 167#include <stdio.h>
154 168
155#include <assert.h> 169#include <assert.h>
156#include <errno.h> 170#include <errno.h>
157#include <sys/types.h> 171#include <sys/types.h>
158#include <time.h> 172#include <time.h>
173#include <limits.h>
159 174
160#include <signal.h> 175#include <signal.h>
161 176
162#ifdef EV_H 177#ifdef EV_H
163# include EV_H 178# include EV_H
164#else 179#else
165# include "ev.h" 180# include "ev.h"
166#endif 181#endif
182
183EV_CPP(extern "C" {)
167 184
168#ifndef _WIN32 185#ifndef _WIN32
169# include <sys/time.h> 186# include <sys/time.h>
170# include <sys/wait.h> 187# include <sys/wait.h>
171# include <unistd.h> 188# include <unistd.h>
… …
174# define WIN32_LEAN_AND_MEAN 191# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 192# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 193# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 194# define EV_SELECT_IS_WINSOCKET 1
178# endif 195# endif
196# undef EV_AVOID_STDIO
179#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
180 206
181/* this block tries to deduce configuration from header-defined symbols and defaults */ 207/* this block tries to deduce configuration from header-defined symbols and defaults */
208
209/* try to deduce the maximum number of signals on this platform */
210#if defined (EV_NSIG)
211/* use what's provided */
212#elif defined (NSIG)
213# define EV_NSIG (NSIG)
214#elif defined(_NSIG)
215# define EV_NSIG (_NSIG)
216#elif defined (SIGMAX)
217# define EV_NSIG (SIGMAX+1)
218#elif defined (SIG_MAX)
219# define EV_NSIG (SIG_MAX+1)
220#elif defined (_SIG_MAX)
221# define EV_NSIG (_SIG_MAX+1)
222#elif defined (MAXSIG)
223# define EV_NSIG (MAXSIG+1)
224#elif defined (MAX_SIG)
225# define EV_NSIG (MAX_SIG+1)
226#elif defined (SIGARRAYSIZE)
227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
228#elif defined (_sys_nsig)
229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
230#else
231# error "unable to find value for NSIG, please report"
232/* to make it compile regardless, just remove the above line, */
233/* but consider reporting it, too! :) */
234# define EV_NSIG 65
235#endif
182 236
183#ifndef EV_USE_CLOCK_SYSCALL 237#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 238# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 240# else
187# define EV_USE_CLOCK_SYSCALL 0 241# define EV_USE_CLOCK_SYSCALL 0
188# endif 242# endif
189#endif 243#endif
190 244
191#ifndef EV_USE_MONOTONIC 245#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 247# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 248# else
195# define EV_USE_MONOTONIC 0 249# define EV_USE_MONOTONIC 0
196# endif 250# endif
197#endif 251#endif
198 252
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 254# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 255#endif
202 256
203#ifndef EV_USE_NANOSLEEP 257#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 258# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 259# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 260# else
207# define EV_USE_NANOSLEEP 0 261# define EV_USE_NANOSLEEP 0
208# endif 262# endif
209#endif 263#endif
210 264
211#ifndef EV_USE_SELECT 265#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 266# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 267#endif
214 268
215#ifndef EV_USE_POLL 269#ifndef EV_USE_POLL
216# ifdef _WIN32 270# ifdef _WIN32
217# define EV_USE_POLL 0 271# define EV_USE_POLL 0
218# else 272# else
219# define EV_USE_POLL 1 273# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 274# endif
221#endif 275#endif
222 276
223#ifndef EV_USE_EPOLL 277#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 279# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 280# else
227# define EV_USE_EPOLL 0 281# define EV_USE_EPOLL 0
228# endif 282# endif
229#endif 283#endif
230 284
… …
236# define EV_USE_PORT 0 290# define EV_USE_PORT 0
237#endif 291#endif
238 292
239#ifndef EV_USE_INOTIFY 293#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 295# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 296# else
243# define EV_USE_INOTIFY 0 297# define EV_USE_INOTIFY 0
244# endif 298# endif
245#endif 299#endif
246 300
247#ifndef EV_PID_HASHSIZE 301#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 302# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249# define EV_PID_HASHSIZE 1
250# else
251# define EV_PID_HASHSIZE 16
252# endif
253#endif 303#endif
254 304
255#ifndef EV_INOTIFY_HASHSIZE 305#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 306# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_INOTIFY_HASHSIZE 1
258# else
259# define EV_INOTIFY_HASHSIZE 16
260# endif
261#endif 307#endif
262 308
263#ifndef EV_USE_EVENTFD 309#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 311# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 312# else
267# 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
268# endif 322# endif
269#endif 323#endif
270 324
271#if 0 /* debugging */ 325#if 0 /* debugging */
272# define EV_VERIFY 3 326# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 327# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 328# define EV_HEAP_CACHE_AT 1
275#endif 329#endif
276 330
277#ifndef EV_VERIFY 331#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 332# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 333#endif
280 334
281#ifndef EV_USE_4HEAP 335#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 336# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 337#endif
284 338
285#ifndef EV_HEAP_CACHE_AT 339#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif 341#endif
288 342
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 343/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290/* which makes programs even slower. might work on other unices, too. */ 344/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 345#if EV_USE_CLOCK_SYSCALL
… …
300# endif 354# endif
301#endif 355#endif
302 356
303/* 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 */
304 358
359#ifdef _AIX
360/* AIX has a completely broken poll.h header */
361# undef EV_USE_POLL
362# define EV_USE_POLL 0
363#endif
364
305#ifndef CLOCK_MONOTONIC 365#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 366# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 367# define EV_USE_MONOTONIC 0
308#endif 368#endif
309 369
… …
322# include <sys/select.h> 382# include <sys/select.h>
323# endif 383# endif
324#endif 384#endif
325 385
326#if EV_USE_INOTIFY 386#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 387# include <sys/statfs.h>
329# include <sys/inotify.h> 388# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 389/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 390# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 391# undef EV_USE_INOTIFY
… …
339#endif 398#endif
340 399
341#if EV_USE_EVENTFD 400#if EV_USE_EVENTFD
342/* 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 */
343# include <stdint.h> 402# include <stdint.h>
344# ifdef __cplusplus 403# ifndef EFD_NONBLOCK
345extern "C" { 404# define EFD_NONBLOCK O_NONBLOCK
346# endif 405# endif
347int eventfd (unsigned int initval, int flags); 406# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 407# ifdef O_CLOEXEC
349} 408# define EFD_CLOEXEC O_CLOEXEC
409# else
410# define EFD_CLOEXEC 02000000
411# endif
350# 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};
351#endif 436#endif
352 437
353/**/ 438/**/
354 439
355#if EV_VERIFY >= 3 440#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 441# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 442#else
358# define EV_FREQUENT_CHECK do { } while (0) 443# define EV_FREQUENT_CHECK do { } while (0)
359#endif 444#endif
360 445
361/* 446/*
… …
368 */ 453 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 454#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
370 455
371#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) */
372#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) */
373/*#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)
374 461
375#if __GNUC__ >= 4 462#if __GNUC__ >= 4
376# define expect(expr,value) __builtin_expect ((expr),(value)) 463# define expect(expr,value) __builtin_expect ((expr),(value))
377# define noinline __attribute__ ((noinline)) 464# define noinline __attribute__ ((noinline))
378#else 465#else
… …
385 472
386#define expect_false(expr) expect ((expr) != 0, 0) 473#define expect_false(expr) expect ((expr) != 0, 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 474#define expect_true(expr) expect ((expr) != 0, 1)
388#define inline_size static inline 475#define inline_size static inline
389 476
390#if EV_MINIMAL 477#if EV_FEATURE_CODE
478# define inline_speed static inline
479#else
391# define inline_speed static noinline 480# define inline_speed static noinline
392#else
393# define inline_speed static inline
394#endif 481#endif
395 482
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 483#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397 484
398#if EV_MINPRI == EV_MAXPRI 485#if EV_MINPRI == EV_MAXPRI
… …
411#define ev_active(w) ((W)(w))->active 498#define ev_active(w) ((W)(w))->active
412#define ev_at(w) ((WT)(w))->at 499#define ev_at(w) ((WT)(w))->at
413 500
414#if EV_USE_REALTIME 501#if EV_USE_REALTIME
415/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 502/* sig_atomic_t is used to avoid per-thread variables or locking but still */
416/* giving it a reasonably high chance of working on typical architetcures */ 503/* giving it a reasonably high chance of working on typical architectures */
417static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 504static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
418#endif 505#endif
419 506
420#if EV_USE_MONOTONIC 507#if EV_USE_MONOTONIC
421static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 508static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422#endif 509#endif
423 510
511#ifndef EV_FD_TO_WIN32_HANDLE
512# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
513#endif
514#ifndef EV_WIN32_HANDLE_TO_FD
515# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
516#endif
517#ifndef EV_WIN32_CLOSE_FD
518# define EV_WIN32_CLOSE_FD(fd) close (fd)
519#endif
520
424#ifdef _WIN32 521#ifdef _WIN32
425# include "ev_win32.c" 522# include "ev_win32.c"
426#endif 523#endif
427 524
428/*****************************************************************************/ 525/*****************************************************************************/
526
527#ifdef __linux
528# include <sys/utsname.h>
529#endif
530
531static unsigned int noinline
532ev_linux_version (void)
533{
534#ifdef __linux
535 unsigned int v = 0;
536 struct utsname buf;
537 int i;
538 char *p = buf.release;
539
540 if (uname (&buf))
541 return 0;
542
543 for (i = 3+1; --i; )
544 {
545 unsigned int c = 0;
546
547 for (;;)
548 {
549 if (*p >= '0' && *p <= '9')
550 c = c * 10 + *p++ - '0';
551 else
552 {
553 p += *p == '.';
554 break;
555 }
556 }
557
558 v = (v << 8) | c;
559 }
560
561 return v;
562#else
563 return 0;
564#endif
565}
566
567/*****************************************************************************/
568
569#if EV_AVOID_STDIO
570static void noinline
571ev_printerr (const char *msg)
572{
573 write (STDERR_FILENO, msg, strlen (msg));
574}
575#endif
429 576
430static void (*syserr_cb)(const char *msg); 577static void (*syserr_cb)(const char *msg);
431 578
432void 579void
433ev_set_syserr_cb (void (*cb)(const char *msg)) 580ev_set_syserr_cb (void (*cb)(const char *msg))
… …
443 590
444 if (syserr_cb) 591 if (syserr_cb)
445 syserr_cb (msg); 592 syserr_cb (msg);
446 else 593 else
447 { 594 {
595#if EV_AVOID_STDIO
596 ev_printerr (msg);
597 ev_printerr (": ");
598 ev_printerr (strerror (errno));
599 ev_printerr ("\n");
600#else
448 perror (msg); 601 perror (msg);
602#endif
449 abort (); 603 abort ();
450 } 604 }
451} 605}
452 606
453static void * 607static void *
454ev_realloc_emul (void *ptr, long size) 608ev_realloc_emul (void *ptr, long size)
455{ 609{
610#if __GLIBC__
611 return realloc (ptr, size);
612#else
456 /* some systems, notably openbsd and darwin, fail to properly 613 /* some systems, notably openbsd and darwin, fail to properly
457 * 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
458 * the single unix specification, so work around them here. 615 * the single unix specification, so work around them here.
459 */ 616 */
460 617
461 if (size) 618 if (size)
462 return realloc (ptr, size); 619 return realloc (ptr, size);
463 620
464 free (ptr); 621 free (ptr);
465 return 0; 622 return 0;
623#endif
466} 624}
467 625
468static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 626static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
469 627
470void 628void
… …
478{ 636{
479 ptr = alloc (ptr, size); 637 ptr = alloc (ptr, size);
480 638
481 if (!ptr && size) 639 if (!ptr && size)
482 { 640 {
641#if EV_AVOID_STDIO
642 ev_printerr ("(libev) memory allocation failed, aborting.\n");
643#else
483 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 644 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
645#endif
484 abort (); 646 abort ();
485 } 647 }
486 648
487 return ptr; 649 return ptr;
488} 650}
… …
490#define ev_malloc(size) ev_realloc (0, (size)) 652#define ev_malloc(size) ev_realloc (0, (size))
491#define ev_free(ptr) ev_realloc ((ptr), 0) 653#define ev_free(ptr) ev_realloc ((ptr), 0)
492 654
493/*****************************************************************************/ 655/*****************************************************************************/
494 656
657/* set in reify when reification needed */
658#define EV_ANFD_REIFY 1
659
495/* file descriptor info structure */ 660/* file descriptor info structure */
496typedef struct 661typedef struct
497{ 662{
498 WL head; 663 WL head;
499 unsigned char events; /* the events watched for */ 664 unsigned char events; /* the events watched for */
500 unsigned char reify; /* flag set when this ANFD needs reification */ 665 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
501 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 666 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
502 unsigned char unused; 667 unsigned char unused;
503#if EV_USE_EPOLL 668#if EV_USE_EPOLL
504 unsigned int egen; /* generation counter to counter epoll bugs */ 669 unsigned int egen; /* generation counter to counter epoll bugs */
505#endif 670#endif
506#if EV_SELECT_IS_WINSOCKET 671#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
507 SOCKET handle; 672 SOCKET handle;
673#endif
674#if EV_USE_IOCP
675 OVERLAPPED or, ow;
508#endif 676#endif
509} ANFD; 677} ANFD;
510 678
511/* stores the pending event set for a given watcher */ 679/* stores the pending event set for a given watcher */
512typedef struct 680typedef struct
… …
567 735
568 static int ev_default_loop_ptr; 736 static int ev_default_loop_ptr;
569 737
570#endif 738#endif
571 739
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
572/*****************************************************************************/ 752/*****************************************************************************/
573 753
574#ifndef EV_HAVE_EV_TIME 754#ifndef EV_HAVE_EV_TIME
575ev_tstamp 755ev_tstamp
576ev_time (void) 756ev_time (void)
… …
619 if (delay > 0.) 799 if (delay > 0.)
620 { 800 {
621#if EV_USE_NANOSLEEP 801#if EV_USE_NANOSLEEP
622 struct timespec ts; 802 struct timespec ts;
623 803
624 ts.tv_sec = (time_t)delay; 804 EV_TS_SET (ts, delay);
625 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
626
627 nanosleep (&ts, 0); 805 nanosleep (&ts, 0);
628#elif defined(_WIN32) 806#elif defined(_WIN32)
629 Sleep ((unsigned long)(delay * 1e3)); 807 Sleep ((unsigned long)(delay * 1e3));
630#else 808#else
631 struct timeval tv; 809 struct timeval tv;
632 810
633 tv.tv_sec = (time_t)delay;
634 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
635
636 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 811 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
637 /* somehting not guaranteed by newer posix versions, but guaranteed */ 812 /* something not guaranteed by newer posix versions, but guaranteed */
638 /* by older ones */ 813 /* by older ones */
814 EV_TV_SET (tv, delay);
639 select (0, 0, 0, 0, &tv); 815 select (0, 0, 0, 0, &tv);
640#endif 816#endif
641 } 817 }
642} 818}
643 819
644/*****************************************************************************/ 820/*****************************************************************************/
645 821
646#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 822#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
647 823
648/* find a suitable new size for the given array, */ 824/* find a suitable new size for the given array, */
649/* hopefully by rounding to a ncie-to-malloc size */ 825/* hopefully by rounding to a nice-to-malloc size */
650inline_size int 826inline_size int
651array_nextsize (int elem, int cur, int cnt) 827array_nextsize (int elem, int cur, int cnt)
652{ 828{
653 int ncur = cur + 1; 829 int ncur = cur + 1;
654 830
… …
750} 926}
751 927
752/*****************************************************************************/ 928/*****************************************************************************/
753 929
754inline_speed void 930inline_speed void
755fd_event (EV_P_ int fd, int revents) 931fd_event_nocheck (EV_P_ int fd, int revents)
756{ 932{
757 ANFD *anfd = anfds + fd; 933 ANFD *anfd = anfds + fd;
758 ev_io *w; 934 ev_io *w;
759 935
760 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 936 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
764 if (ev) 940 if (ev)
765 ev_feed_event (EV_A_ (W)w, ev); 941 ev_feed_event (EV_A_ (W)w, ev);
766 } 942 }
767} 943}
768 944
945/* do not submit kernel events for fds that have reify set */
946/* because that means they changed while we were polling for new events */
947inline_speed void
948fd_event (EV_P_ int fd, int revents)
949{
950 ANFD *anfd = anfds + fd;
951
952 if (expect_true (!anfd->reify))
953 fd_event_nocheck (EV_A_ fd, revents);
954}
955
769void 956void
770ev_feed_fd_event (EV_P_ int fd, int revents) 957ev_feed_fd_event (EV_P_ int fd, int revents)
771{ 958{
772 if (fd >= 0 && fd < anfdmax) 959 if (fd >= 0 && fd < anfdmax)
773 fd_event (EV_A_ fd, revents); 960 fd_event_nocheck (EV_A_ fd, revents);
774} 961}
775 962
776/* make sure the external fd watch events are in-sync */ 963/* make sure the external fd watch events are in-sync */
777/* with the kernel/libev internal state */ 964/* with the kernel/libev internal state */
778inline_size void 965inline_size void
… …
784 { 971 {
785 int fd = fdchanges [i]; 972 int fd = fdchanges [i];
786 ANFD *anfd = anfds + fd; 973 ANFD *anfd = anfds + fd;
787 ev_io *w; 974 ev_io *w;
788 975
789 unsigned char events = 0; 976 unsigned char o_events = anfd->events;
977 unsigned char o_reify = anfd->reify;
790 978
791 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 979 anfd->reify = 0;
792 events |= (unsigned char)w->events;
793 980
794#if EV_SELECT_IS_WINSOCKET 981#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
795 if (events) 982 if (o_reify & EV__IOFDSET)
796 { 983 {
797 unsigned long arg; 984 unsigned long arg;
798 #ifdef EV_FD_TO_WIN32_HANDLE
799 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 985 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
800 #else
801 anfd->handle = _get_osfhandle (fd);
802 #endif
803 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 986 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
987 printf ("oi %d %x\n", fd, anfd->handle);//D
804 } 988 }
805#endif 989#endif
806 990
991 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
807 { 992 {
808 unsigned char o_events = anfd->events;
809 unsigned char o_reify = anfd->reify;
810
811 anfd->reify = 0;
812 anfd->events = events; 993 anfd->events = 0;
813 994
814 if (o_events != events || o_reify & EV__IOFDSET) 995 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
996 anfd->events |= (unsigned char)w->events;
997
998 if (o_events != anfd->events)
999 o_reify = EV__IOFDSET; /* actually |= */
1000 }
1001
1002 if (o_reify & EV__IOFDSET)
815 backend_modify (EV_A_ fd, o_events, events); 1003 backend_modify (EV_A_ fd, o_events, anfd->events);
816 }
817 } 1004 }
818 1005
819 fdchangecnt = 0; 1006 fdchangecnt = 0;
820} 1007}
821 1008
… …
845 ev_io_stop (EV_A_ w); 1032 ev_io_stop (EV_A_ w);
846 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1033 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
847 } 1034 }
848} 1035}
849 1036
850/* check whether the given fd is atcually valid, for error recovery */ 1037/* check whether the given fd is actually valid, for error recovery */
851inline_size int 1038inline_size int
852fd_valid (int fd) 1039fd_valid (int fd)
853{ 1040{
854#ifdef _WIN32 1041#ifdef _WIN32
855 return _get_osfhandle (fd) != -1; 1042 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
856#else 1043#else
857 return fcntl (fd, F_GETFD) != -1; 1044 return fcntl (fd, F_GETFD) != -1;
858#endif 1045#endif
859} 1046}
860 1047
… …
878 1065
879 for (fd = anfdmax; fd--; ) 1066 for (fd = anfdmax; fd--; )
880 if (anfds [fd].events) 1067 if (anfds [fd].events)
881 { 1068 {
882 fd_kill (EV_A_ fd); 1069 fd_kill (EV_A_ fd);
883 return; 1070 break;
884 } 1071 }
885} 1072}
886 1073
887/* usually called after fork if backend needs to re-arm all fds from scratch */ 1074/* usually called after fork if backend needs to re-arm all fds from scratch */
888static void noinline 1075static void noinline
… …
893 for (fd = 0; fd < anfdmax; ++fd) 1080 for (fd = 0; fd < anfdmax; ++fd)
894 if (anfds [fd].events) 1081 if (anfds [fd].events)
895 { 1082 {
896 anfds [fd].events = 0; 1083 anfds [fd].events = 0;
897 anfds [fd].emask = 0; 1084 anfds [fd].emask = 0;
898 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1085 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
899 } 1086 }
900} 1087}
901 1088
1089/* used to prepare libev internal fd's */
1090/* this is not fork-safe */
1091inline_speed void
1092fd_intern (int fd)
1093{
1094#ifdef _WIN32
1095 unsigned long arg = 1;
1096 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1097#else
1098 fcntl (fd, F_SETFD, FD_CLOEXEC);
1099 fcntl (fd, F_SETFL, O_NONBLOCK);
1100#endif
1101}
1102
902/*****************************************************************************/ 1103/*****************************************************************************/
903 1104
904/* 1105/*
905 * the heap functions want a real array index. array index 0 uis guaranteed to not 1106 * the heap functions want a real array index. array index 0 is guaranteed to not
906 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1107 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
907 * the branching factor of the d-tree. 1108 * the branching factor of the d-tree.
908 */ 1109 */
909 1110
910/* 1111/*
… …
978 1179
979 for (;;) 1180 for (;;)
980 { 1181 {
981 int c = k << 1; 1182 int c = k << 1;
982 1183
983 if (c > N + HEAP0 - 1) 1184 if (c >= N + HEAP0)
984 break; 1185 break;
985 1186
986 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1187 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
987 ? 1 : 0; 1188 ? 1 : 0;
988 1189
… …
1024 1225
1025/* move an element suitably so it is in a correct place */ 1226/* move an element suitably so it is in a correct place */
1026inline_size void 1227inline_size void
1027adjustheap (ANHE *heap, int N, int k) 1228adjustheap (ANHE *heap, int N, int k)
1028{ 1229{
1029 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1230 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1030 upheap (heap, k); 1231 upheap (heap, k);
1031 else 1232 else
1032 downheap (heap, N, k); 1233 downheap (heap, N, k);
1033} 1234}
1034 1235
… …
1047/*****************************************************************************/ 1248/*****************************************************************************/
1048 1249
1049/* associate signal watchers to a signal signal */ 1250/* associate signal watchers to a signal signal */
1050typedef struct 1251typedef struct
1051{ 1252{
1253 EV_ATOMIC_T pending;
1254#if EV_MULTIPLICITY
1255 EV_P;
1256#endif
1052 WL head; 1257 WL head;
1053 EV_ATOMIC_T gotsig;
1054} ANSIG; 1258} ANSIG;
1055 1259
1056static ANSIG *signals; 1260static ANSIG signals [EV_NSIG - 1];
1057static int signalmax;
1058
1059static EV_ATOMIC_T gotsig;
1060 1261
1061/*****************************************************************************/ 1262/*****************************************************************************/
1062 1263
1063/* used to prepare libev internal fd's */ 1264#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1064/* this is not fork-safe */
1065inline_speed void
1066fd_intern (int fd)
1067{
1068#ifdef _WIN32
1069 unsigned long arg = 1;
1070 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1071#else
1072 fcntl (fd, F_SETFD, FD_CLOEXEC);
1073 fcntl (fd, F_SETFL, O_NONBLOCK);
1074#endif
1075}
1076 1265
1077static void noinline 1266static void noinline
1078evpipe_init (EV_P) 1267evpipe_init (EV_P)
1079{ 1268{
1080 if (!ev_is_active (&pipe_w)) 1269 if (!ev_is_active (&pipe_w))
1081 { 1270 {
1082#if EV_USE_EVENTFD 1271# if EV_USE_EVENTFD
1272 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1273 if (evfd < 0 && errno == EINVAL)
1083 if ((evfd = eventfd (0, 0)) >= 0) 1274 evfd = eventfd (0, 0);
1275
1276 if (evfd >= 0)
1084 { 1277 {
1085 evpipe [0] = -1; 1278 evpipe [0] = -1;
1086 fd_intern (evfd); 1279 fd_intern (evfd); /* doing it twice doesn't hurt */
1087 ev_io_set (&pipe_w, evfd, EV_READ); 1280 ev_io_set (&pipe_w, evfd, EV_READ);
1088 } 1281 }
1089 else 1282 else
1090#endif 1283# endif
1091 { 1284 {
1092 while (pipe (evpipe)) 1285 while (pipe (evpipe))
1093 ev_syserr ("(libev) error creating signal/async pipe"); 1286 ev_syserr ("(libev) error creating signal/async pipe");
1094 1287
1095 fd_intern (evpipe [0]); 1288 fd_intern (evpipe [0]);
… …
1106evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1299evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1107{ 1300{
1108 if (!*flag) 1301 if (!*flag)
1109 { 1302 {
1110 int old_errno = errno; /* save errno because write might clobber it */ 1303 int old_errno = errno; /* save errno because write might clobber it */
1304 char dummy;
1111 1305
1112 *flag = 1; 1306 *flag = 1;
1113 1307
1114#if EV_USE_EVENTFD 1308#if EV_USE_EVENTFD
1115 if (evfd >= 0) 1309 if (evfd >= 0)
… …
1117 uint64_t counter = 1; 1311 uint64_t counter = 1;
1118 write (evfd, &counter, sizeof (uint64_t)); 1312 write (evfd, &counter, sizeof (uint64_t));
1119 } 1313 }
1120 else 1314 else
1121#endif 1315#endif
1316 /* win32 people keep sending patches that change this write() to send() */
1317 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1318 /* so when you think this write should be a send instead, please find out */
1319 /* where your send() is from - it's definitely not the microsoft send, and */
1320 /* tell me. thank you. */
1122 write (evpipe [1], &old_errno, 1); 1321 write (evpipe [1], &dummy, 1);
1123 1322
1124 errno = old_errno; 1323 errno = old_errno;
1125 } 1324 }
1126} 1325}
1127 1326
1128/* called whenever the libev signal pipe */ 1327/* called whenever the libev signal pipe */
1129/* got some events (signal, async) */ 1328/* got some events (signal, async) */
1130static void 1329static void
1131pipecb (EV_P_ ev_io *iow, int revents) 1330pipecb (EV_P_ ev_io *iow, int revents)
1132{ 1331{
1332 int i;
1333
1133#if EV_USE_EVENTFD 1334#if EV_USE_EVENTFD
1134 if (evfd >= 0) 1335 if (evfd >= 0)
1135 { 1336 {
1136 uint64_t counter; 1337 uint64_t counter;
1137 read (evfd, &counter, sizeof (uint64_t)); 1338 read (evfd, &counter, sizeof (uint64_t));
1138 } 1339 }
1139 else 1340 else
1140#endif 1341#endif
1141 { 1342 {
1142 char dummy; 1343 char dummy;
1344 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1143 read (evpipe [0], &dummy, 1); 1345 read (evpipe [0], &dummy, 1);
1144 } 1346 }
1145 1347
1146 if (gotsig && ev_is_default_loop (EV_A)) 1348 if (sig_pending)
1147 { 1349 {
1148 int signum; 1350 sig_pending = 0;
1149 gotsig = 0;
1150 1351
1151 for (signum = signalmax; signum--; ) 1352 for (i = EV_NSIG - 1; i--; )
1152 if (signals [signum].gotsig) 1353 if (expect_false (signals [i].pending))
1153 ev_feed_signal_event (EV_A_ signum + 1); 1354 ev_feed_signal_event (EV_A_ i + 1);
1154 } 1355 }
1155 1356
1156#if EV_ASYNC_ENABLE 1357#if EV_ASYNC_ENABLE
1157 if (gotasync) 1358 if (async_pending)
1158 { 1359 {
1159 int i; 1360 async_pending = 0;
1160 gotasync = 0;
1161 1361
1162 for (i = asynccnt; i--; ) 1362 for (i = asynccnt; i--; )
1163 if (asyncs [i]->sent) 1363 if (asyncs [i]->sent)
1164 { 1364 {
1165 asyncs [i]->sent = 0; 1365 asyncs [i]->sent = 0;
… …
1169#endif 1369#endif
1170} 1370}
1171 1371
1172/*****************************************************************************/ 1372/*****************************************************************************/
1173 1373
1374void
1375ev_feed_signal (int signum)
1376{
1377#if EV_MULTIPLICITY
1378 EV_P = signals [signum - 1].loop;
1379
1380 if (!EV_A)
1381 return;
1382#endif
1383
1384 signals [signum - 1].pending = 1;
1385 evpipe_write (EV_A_ &sig_pending);
1386}
1387
1174static void 1388static void
1175ev_sighandler (int signum) 1389ev_sighandler (int signum)
1176{ 1390{
1177#if EV_MULTIPLICITY
1178 struct ev_loop *loop = &default_loop_struct;
1179#endif
1180
1181#if _WIN32 1391#ifdef _WIN32
1182 signal (signum, ev_sighandler); 1392 signal (signum, ev_sighandler);
1183#endif 1393#endif
1184 1394
1185 signals [signum - 1].gotsig = 1; 1395 ev_feed_signal (signum);
1186 evpipe_write (EV_A_ &gotsig);
1187} 1396}
1188 1397
1189void noinline 1398void noinline
1190ev_feed_signal_event (EV_P_ int signum) 1399ev_feed_signal_event (EV_P_ int signum)
1191{ 1400{
1192 WL w; 1401 WL w;
1193 1402
1403 if (expect_false (signum <= 0 || signum > EV_NSIG))
1404 return;
1405
1406 --signum;
1407
1194#if EV_MULTIPLICITY 1408#if EV_MULTIPLICITY
1195 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1409 /* it is permissible to try to feed a signal to the wrong loop */
1196#endif 1410 /* or, likely more useful, feeding a signal nobody is waiting for */
1197 1411
1198 --signum; 1412 if (expect_false (signals [signum].loop != EV_A))
1199
1200 if (signum < 0 || signum >= signalmax)
1201 return; 1413 return;
1414#endif
1202 1415
1203 signals [signum].gotsig = 0; 1416 signals [signum].pending = 0;
1204 1417
1205 for (w = signals [signum].head; w; w = w->next) 1418 for (w = signals [signum].head; w; w = w->next)
1206 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1419 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1207} 1420}
1208 1421
1422#if EV_USE_SIGNALFD
1423static void
1424sigfdcb (EV_P_ ev_io *iow, int revents)
1425{
1426 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1427
1428 for (;;)
1429 {
1430 ssize_t res = read (sigfd, si, sizeof (si));
1431
1432 /* not ISO-C, as res might be -1, but works with SuS */
1433 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1434 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1435
1436 if (res < (ssize_t)sizeof (si))
1437 break;
1438 }
1439}
1440#endif
1441
1442#endif
1443
1209/*****************************************************************************/ 1444/*****************************************************************************/
1210 1445
1446#if EV_CHILD_ENABLE
1211static WL childs [EV_PID_HASHSIZE]; 1447static WL childs [EV_PID_HASHSIZE];
1212
1213#ifndef _WIN32
1214 1448
1215static ev_signal childev; 1449static ev_signal childev;
1216 1450
1217#ifndef WIFCONTINUED 1451#ifndef WIFCONTINUED
1218# define WIFCONTINUED(status) 0 1452# define WIFCONTINUED(status) 0
… …
1223child_reap (EV_P_ int chain, int pid, int status) 1457child_reap (EV_P_ int chain, int pid, int status)
1224{ 1458{
1225 ev_child *w; 1459 ev_child *w;
1226 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1460 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1227 1461
1228 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1462 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1229 { 1463 {
1230 if ((w->pid == pid || !w->pid) 1464 if ((w->pid == pid || !w->pid)
1231 && (!traced || (w->flags & 1))) 1465 && (!traced || (w->flags & 1)))
1232 { 1466 {
1233 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1467 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1258 /* make sure we are called again until all children have been reaped */ 1492 /* make sure we are called again until all children have been reaped */
1259 /* we need to do it this way so that the callback gets called before we continue */ 1493 /* we need to do it this way so that the callback gets called before we continue */
1260 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1494 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1261 1495
1262 child_reap (EV_A_ pid, pid, status); 1496 child_reap (EV_A_ pid, pid, status);
1263 if (EV_PID_HASHSIZE > 1) 1497 if ((EV_PID_HASHSIZE) > 1)
1264 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1498 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1265} 1499}
1266 1500
1267#endif 1501#endif
1268 1502
1269/*****************************************************************************/ 1503/*****************************************************************************/
1270 1504
1505#if EV_USE_IOCP
1506# include "ev_iocp.c"
1507#endif
1271#if EV_USE_PORT 1508#if EV_USE_PORT
1272# include "ev_port.c" 1509# include "ev_port.c"
1273#endif 1510#endif
1274#if EV_USE_KQUEUE 1511#if EV_USE_KQUEUE
1275# include "ev_kqueue.c" 1512# include "ev_kqueue.c"
… …
1335#ifdef __APPLE__ 1572#ifdef __APPLE__
1336 /* only select works correctly on that "unix-certified" platform */ 1573 /* only select works correctly on that "unix-certified" platform */
1337 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1574 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1338 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1575 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1339#endif 1576#endif
1577#ifdef __FreeBSD__
1578 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1579#endif
1340 1580
1341 return flags; 1581 return flags;
1342} 1582}
1343 1583
1344unsigned int 1584unsigned int
1345ev_embeddable_backends (void) 1585ev_embeddable_backends (void)
1346{ 1586{
1347 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1587 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1348 1588
1349 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1589 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1350 /* please fix it and tell me how to detect the fix */ 1590 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1351 flags &= ~EVBACKEND_EPOLL; 1591 flags &= ~EVBACKEND_EPOLL;
1352 1592
1353 return flags; 1593 return flags;
1354} 1594}
1355 1595
1356unsigned int 1596unsigned int
1357ev_backend (EV_P) 1597ev_backend (EV_P)
1358{ 1598{
1359 return backend; 1599 return backend;
1360} 1600}
1361 1601
1602#if EV_FEATURE_API
1362unsigned int 1603unsigned int
1363ev_loop_count (EV_P) 1604ev_iteration (EV_P)
1364{ 1605{
1365 return loop_count; 1606 return loop_count;
1366} 1607}
1367 1608
1368unsigned int 1609unsigned int
1369ev_loop_depth (EV_P) 1610ev_depth (EV_P)
1370{ 1611{
1371 return loop_depth; 1612 return loop_depth;
1372} 1613}
1373 1614
1374void 1615void
… …
1380void 1621void
1381ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1622ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1382{ 1623{
1383 timeout_blocktime = interval; 1624 timeout_blocktime = interval;
1384} 1625}
1626
1627void
1628ev_set_userdata (EV_P_ void *data)
1629{
1630 userdata = data;
1631}
1632
1633void *
1634ev_userdata (EV_P)
1635{
1636 return userdata;
1637}
1638
1639void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1640{
1641 invoke_cb = invoke_pending_cb;
1642}
1643
1644void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1645{
1646 release_cb = release;
1647 acquire_cb = acquire;
1648}
1649#endif
1385 1650
1386/* initialise a loop structure, must be zero-initialised */ 1651/* initialise a loop structure, must be zero-initialised */
1387static void noinline 1652static void noinline
1388loop_init (EV_P_ unsigned int flags) 1653loop_init (EV_P_ unsigned int flags)
1389{ 1654{
1390 if (!backend) 1655 if (!backend)
1391 { 1656 {
1657 origflags = flags;
1658
1392#if EV_USE_REALTIME 1659#if EV_USE_REALTIME
1393 if (!have_realtime) 1660 if (!have_realtime)
1394 { 1661 {
1395 struct timespec ts; 1662 struct timespec ts;
1396 1663
… …
1407 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1674 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1408 have_monotonic = 1; 1675 have_monotonic = 1;
1409 } 1676 }
1410#endif 1677#endif
1411 1678
1679 /* pid check not overridable via env */
1680#ifndef _WIN32
1681 if (flags & EVFLAG_FORKCHECK)
1682 curpid = getpid ();
1683#endif
1684
1685 if (!(flags & EVFLAG_NOENV)
1686 && !enable_secure ()
1687 && getenv ("LIBEV_FLAGS"))
1688 flags = atoi (getenv ("LIBEV_FLAGS"));
1689
1412 ev_rt_now = ev_time (); 1690 ev_rt_now = ev_time ();
1413 mn_now = get_clock (); 1691 mn_now = get_clock ();
1414 now_floor = mn_now; 1692 now_floor = mn_now;
1415 rtmn_diff = ev_rt_now - mn_now; 1693 rtmn_diff = ev_rt_now - mn_now;
1694#if EV_FEATURE_API
1695 invoke_cb = ev_invoke_pending;
1696#endif
1416 1697
1417 io_blocktime = 0.; 1698 io_blocktime = 0.;
1418 timeout_blocktime = 0.; 1699 timeout_blocktime = 0.;
1419 backend = 0; 1700 backend = 0;
1420 backend_fd = -1; 1701 backend_fd = -1;
1421 gotasync = 0; 1702 sig_pending = 0;
1703#if EV_ASYNC_ENABLE
1704 async_pending = 0;
1705#endif
1422#if EV_USE_INOTIFY 1706#if EV_USE_INOTIFY
1423 fs_fd = -2; 1707 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1424#endif 1708#endif
1425 1709#if EV_USE_SIGNALFD
1426 /* pid check not overridable via env */ 1710 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1427#ifndef _WIN32
1428 if (flags & EVFLAG_FORKCHECK)
1429 curpid = getpid ();
1430#endif 1711#endif
1431 1712
1432 if (!(flags & EVFLAG_NOENV) 1713 if (!(flags & EVBACKEND_MASK))
1433 && !enable_secure ()
1434 && getenv ("LIBEV_FLAGS"))
1435 flags = atoi (getenv ("LIBEV_FLAGS"));
1436
1437 if (!(flags & 0x0000ffffU))
1438 flags |= ev_recommended_backends (); 1714 flags |= ev_recommended_backends ();
1439 1715
1716#if EV_USE_IOCP
1717 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1718#endif
1440#if EV_USE_PORT 1719#if EV_USE_PORT
1441 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1720 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1442#endif 1721#endif
1443#if EV_USE_KQUEUE 1722#if EV_USE_KQUEUE
1444 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1723 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1453 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1732 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1454#endif 1733#endif
1455 1734
1456 ev_prepare_init (&pending_w, pendingcb); 1735 ev_prepare_init (&pending_w, pendingcb);
1457 1736
1737#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1458 ev_init (&pipe_w, pipecb); 1738 ev_init (&pipe_w, pipecb);
1459 ev_set_priority (&pipe_w, EV_MAXPRI); 1739 ev_set_priority (&pipe_w, EV_MAXPRI);
1740#endif
1460 } 1741 }
1461} 1742}
1462 1743
1463/* free up a loop structure */ 1744/* free up a loop structure */
1464static void noinline 1745void
1465loop_destroy (EV_P) 1746ev_loop_destroy (EV_P)
1466{ 1747{
1467 int i; 1748 int i;
1468 1749
1750#if EV_MULTIPLICITY
1751 /* mimic free (0) */
1752 if (!EV_A)
1753 return;
1754#endif
1755
1756#if EV_CLEANUP_ENABLE
1757 /* queue cleanup watchers (and execute them) */
1758 if (expect_false (cleanupcnt))
1759 {
1760 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1761 EV_INVOKE_PENDING;
1762 }
1763#endif
1764
1765#if EV_CHILD_ENABLE
1766 if (ev_is_active (&childev))
1767 {
1768 ev_ref (EV_A); /* child watcher */
1769 ev_signal_stop (EV_A_ &childev);
1770 }
1771#endif
1772
1469 if (ev_is_active (&pipe_w)) 1773 if (ev_is_active (&pipe_w))
1470 { 1774 {
1471 ev_ref (EV_A); /* signal watcher */ 1775 /*ev_ref (EV_A);*/
1472 ev_io_stop (EV_A_ &pipe_w); 1776 /*ev_io_stop (EV_A_ &pipe_w);*/
1473 1777
1474#if EV_USE_EVENTFD 1778#if EV_USE_EVENTFD
1475 if (evfd >= 0) 1779 if (evfd >= 0)
1476 close (evfd); 1780 close (evfd);
1477#endif 1781#endif
1478 1782
1479 if (evpipe [0] >= 0) 1783 if (evpipe [0] >= 0)
1480 { 1784 {
1481 close (evpipe [0]); 1785 EV_WIN32_CLOSE_FD (evpipe [0]);
1482 close (evpipe [1]); 1786 EV_WIN32_CLOSE_FD (evpipe [1]);
1483 } 1787 }
1484 } 1788 }
1789
1790#if EV_USE_SIGNALFD
1791 if (ev_is_active (&sigfd_w))
1792 close (sigfd);
1793#endif
1485 1794
1486#if EV_USE_INOTIFY 1795#if EV_USE_INOTIFY
1487 if (fs_fd >= 0) 1796 if (fs_fd >= 0)
1488 close (fs_fd); 1797 close (fs_fd);
1489#endif 1798#endif
1490 1799
1491 if (backend_fd >= 0) 1800 if (backend_fd >= 0)
1492 close (backend_fd); 1801 close (backend_fd);
1493 1802
1803#if EV_USE_IOCP
1804 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1805#endif
1494#if EV_USE_PORT 1806#if EV_USE_PORT
1495 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1807 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1496#endif 1808#endif
1497#if EV_USE_KQUEUE 1809#if EV_USE_KQUEUE
1498 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1810 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1513#if EV_IDLE_ENABLE 1825#if EV_IDLE_ENABLE
1514 array_free (idle, [i]); 1826 array_free (idle, [i]);
1515#endif 1827#endif
1516 } 1828 }
1517 1829
1518 ev_free (anfds); anfdmax = 0; 1830 ev_free (anfds); anfds = 0; anfdmax = 0;
1519 1831
1520 /* have to use the microsoft-never-gets-it-right macro */ 1832 /* have to use the microsoft-never-gets-it-right macro */
1521 array_free (rfeed, EMPTY); 1833 array_free (rfeed, EMPTY);
1522 array_free (fdchange, EMPTY); 1834 array_free (fdchange, EMPTY);
1523 array_free (timer, EMPTY); 1835 array_free (timer, EMPTY);
… …
1525 array_free (periodic, EMPTY); 1837 array_free (periodic, EMPTY);
1526#endif 1838#endif
1527#if EV_FORK_ENABLE 1839#if EV_FORK_ENABLE
1528 array_free (fork, EMPTY); 1840 array_free (fork, EMPTY);
1529#endif 1841#endif
1842#if EV_CLEANUP_ENABLE
1843 array_free (cleanup, EMPTY);
1844#endif
1530 array_free (prepare, EMPTY); 1845 array_free (prepare, EMPTY);
1531 array_free (check, EMPTY); 1846 array_free (check, EMPTY);
1532#if EV_ASYNC_ENABLE 1847#if EV_ASYNC_ENABLE
1533 array_free (async, EMPTY); 1848 array_free (async, EMPTY);
1534#endif 1849#endif
1535 1850
1536 backend = 0; 1851 backend = 0;
1852
1853#if EV_MULTIPLICITY
1854 if (ev_is_default_loop (EV_A))
1855#endif
1856 ev_default_loop_ptr = 0;
1857#if EV_MULTIPLICITY
1858 else
1859 ev_free (EV_A);
1860#endif
1537} 1861}
1538 1862
1539#if EV_USE_INOTIFY 1863#if EV_USE_INOTIFY
1540inline_size void infy_fork (EV_P); 1864inline_size void infy_fork (EV_P);
1541#endif 1865#endif
… …
1558 1882
1559 if (ev_is_active (&pipe_w)) 1883 if (ev_is_active (&pipe_w))
1560 { 1884 {
1561 /* this "locks" the handlers against writing to the pipe */ 1885 /* this "locks" the handlers against writing to the pipe */
1562 /* while we modify the fd vars */ 1886 /* while we modify the fd vars */
1563 gotsig = 1; 1887 sig_pending = 1;
1564#if EV_ASYNC_ENABLE 1888#if EV_ASYNC_ENABLE
1565 gotasync = 1; 1889 async_pending = 1;
1566#endif 1890#endif
1567 1891
1568 ev_ref (EV_A); 1892 ev_ref (EV_A);
1569 ev_io_stop (EV_A_ &pipe_w); 1893 ev_io_stop (EV_A_ &pipe_w);
1570 1894
… …
1573 close (evfd); 1897 close (evfd);
1574#endif 1898#endif
1575 1899
1576 if (evpipe [0] >= 0) 1900 if (evpipe [0] >= 0)
1577 { 1901 {
1578 close (evpipe [0]); 1902 EV_WIN32_CLOSE_FD (evpipe [0]);
1579 close (evpipe [1]); 1903 EV_WIN32_CLOSE_FD (evpipe [1]);
1580 } 1904 }
1581 1905
1906#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1582 evpipe_init (EV_A); 1907 evpipe_init (EV_A);
1583 /* now iterate over everything, in case we missed something */ 1908 /* now iterate over everything, in case we missed something */
1584 pipecb (EV_A_ &pipe_w, EV_READ); 1909 pipecb (EV_A_ &pipe_w, EV_READ);
1910#endif
1585 } 1911 }
1586 1912
1587 postfork = 0; 1913 postfork = 0;
1588} 1914}
1589 1915
1590#if EV_MULTIPLICITY 1916#if EV_MULTIPLICITY
1591 1917
1592struct ev_loop * 1918struct ev_loop *
1593ev_loop_new (unsigned int flags) 1919ev_loop_new (unsigned int flags)
1594{ 1920{
1595 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1921 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1596 1922
1597 memset (loop, 0, sizeof (struct ev_loop)); 1923 memset (EV_A, 0, sizeof (struct ev_loop));
1598
1599 loop_init (EV_A_ flags); 1924 loop_init (EV_A_ flags);
1600 1925
1601 if (ev_backend (EV_A)) 1926 if (ev_backend (EV_A))
1602 return loop; 1927 return EV_A;
1603 1928
1929 ev_free (EV_A);
1604 return 0; 1930 return 0;
1605} 1931}
1606 1932
1607void 1933#endif /* multiplicity */
1608ev_loop_destroy (EV_P)
1609{
1610 loop_destroy (EV_A);
1611 ev_free (loop);
1612}
1613
1614void
1615ev_loop_fork (EV_P)
1616{
1617 postfork = 1; /* must be in line with ev_default_fork */
1618}
1619 1934
1620#if EV_VERIFY 1935#if EV_VERIFY
1621static void noinline 1936static void noinline
1622verify_watcher (EV_P_ W w) 1937verify_watcher (EV_P_ W w)
1623{ 1938{
… …
1651 verify_watcher (EV_A_ ws [cnt]); 1966 verify_watcher (EV_A_ ws [cnt]);
1652 } 1967 }
1653} 1968}
1654#endif 1969#endif
1655 1970
1971#if EV_FEATURE_API
1656void 1972void
1657ev_loop_verify (EV_P) 1973ev_verify (EV_P)
1658{ 1974{
1659#if EV_VERIFY 1975#if EV_VERIFY
1660 int i; 1976 int i;
1661 WL w; 1977 WL w;
1662 1978
… …
1696#if EV_FORK_ENABLE 2012#if EV_FORK_ENABLE
1697 assert (forkmax >= forkcnt); 2013 assert (forkmax >= forkcnt);
1698 array_verify (EV_A_ (W *)forks, forkcnt); 2014 array_verify (EV_A_ (W *)forks, forkcnt);
1699#endif 2015#endif
1700 2016
2017#if EV_CLEANUP_ENABLE
2018 assert (cleanupmax >= cleanupcnt);
2019 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2020#endif
2021
1701#if EV_ASYNC_ENABLE 2022#if EV_ASYNC_ENABLE
1702 assert (asyncmax >= asynccnt); 2023 assert (asyncmax >= asynccnt);
1703 array_verify (EV_A_ (W *)asyncs, asynccnt); 2024 array_verify (EV_A_ (W *)asyncs, asynccnt);
1704#endif 2025#endif
1705 2026
2027#if EV_PREPARE_ENABLE
1706 assert (preparemax >= preparecnt); 2028 assert (preparemax >= preparecnt);
1707 array_verify (EV_A_ (W *)prepares, preparecnt); 2029 array_verify (EV_A_ (W *)prepares, preparecnt);
2030#endif
1708 2031
2032#if EV_CHECK_ENABLE
1709 assert (checkmax >= checkcnt); 2033 assert (checkmax >= checkcnt);
1710 array_verify (EV_A_ (W *)checks, checkcnt); 2034 array_verify (EV_A_ (W *)checks, checkcnt);
2035#endif
1711 2036
1712# if 0 2037# if 0
2038#if EV_CHILD_ENABLE
1713 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2039 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1714 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2040 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2041#endif
1715# endif 2042# endif
1716#endif 2043#endif
1717} 2044}
1718 2045#endif
1719#endif /* multiplicity */
1720 2046
1721#if EV_MULTIPLICITY 2047#if EV_MULTIPLICITY
1722struct ev_loop * 2048struct ev_loop *
1723ev_default_loop_init (unsigned int flags)
1724#else 2049#else
1725int 2050int
2051#endif
1726ev_default_loop (unsigned int flags) 2052ev_default_loop (unsigned int flags)
1727#endif
1728{ 2053{
1729 if (!ev_default_loop_ptr) 2054 if (!ev_default_loop_ptr)
1730 { 2055 {
1731#if EV_MULTIPLICITY 2056#if EV_MULTIPLICITY
1732 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2057 EV_P = ev_default_loop_ptr = &default_loop_struct;
1733#else 2058#else
1734 ev_default_loop_ptr = 1; 2059 ev_default_loop_ptr = 1;
1735#endif 2060#endif
1736 2061
1737 loop_init (EV_A_ flags); 2062 loop_init (EV_A_ flags);
1738 2063
1739 if (ev_backend (EV_A)) 2064 if (ev_backend (EV_A))
1740 { 2065 {
1741#ifndef _WIN32 2066#if EV_CHILD_ENABLE
1742 ev_signal_init (&childev, childcb, SIGCHLD); 2067 ev_signal_init (&childev, childcb, SIGCHLD);
1743 ev_set_priority (&childev, EV_MAXPRI); 2068 ev_set_priority (&childev, EV_MAXPRI);
1744 ev_signal_start (EV_A_ &childev); 2069 ev_signal_start (EV_A_ &childev);
1745 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2070 ev_unref (EV_A); /* child watcher should not keep loop alive */
1746#endif 2071#endif
… …
1751 2076
1752 return ev_default_loop_ptr; 2077 return ev_default_loop_ptr;
1753} 2078}
1754 2079
1755void 2080void
1756ev_default_destroy (void) 2081ev_loop_fork (EV_P)
1757{ 2082{
1758#if EV_MULTIPLICITY
1759 struct ev_loop *loop = ev_default_loop_ptr;
1760#endif
1761
1762 ev_default_loop_ptr = 0;
1763
1764#ifndef _WIN32
1765 ev_ref (EV_A); /* child watcher */
1766 ev_signal_stop (EV_A_ &childev);
1767#endif
1768
1769 loop_destroy (EV_A);
1770}
1771
1772void
1773ev_default_fork (void)
1774{
1775#if EV_MULTIPLICITY
1776 struct ev_loop *loop = ev_default_loop_ptr;
1777#endif
1778
1779 postfork = 1; /* must be in line with ev_loop_fork */ 2083 postfork = 1; /* must be in line with ev_default_fork */
1780} 2084}
1781 2085
1782/*****************************************************************************/ 2086/*****************************************************************************/
1783 2087
1784void 2088void
1785ev_invoke (EV_P_ void *w, int revents) 2089ev_invoke (EV_P_ void *w, int revents)
1786{ 2090{
1787 EV_CB_INVOKE ((W)w, revents); 2091 EV_CB_INVOKE ((W)w, revents);
1788} 2092}
1789 2093
1790inline_speed void 2094unsigned int
1791call_pending (EV_P) 2095ev_pending_count (EV_P)
2096{
2097 int pri;
2098 unsigned int count = 0;
2099
2100 for (pri = NUMPRI; pri--; )
2101 count += pendingcnt [pri];
2102
2103 return count;
2104}
2105
2106void noinline
2107ev_invoke_pending (EV_P)
1792{ 2108{
1793 int pri; 2109 int pri;
1794 2110
1795 for (pri = NUMPRI; pri--; ) 2111 for (pri = NUMPRI; pri--; )
1796 while (pendingcnt [pri]) 2112 while (pendingcnt [pri])
… …
1863 EV_FREQUENT_CHECK; 2179 EV_FREQUENT_CHECK;
1864 feed_reverse (EV_A_ (W)w); 2180 feed_reverse (EV_A_ (W)w);
1865 } 2181 }
1866 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2182 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1867 2183
1868 feed_reverse_done (EV_A_ EV_TIMEOUT); 2184 feed_reverse_done (EV_A_ EV_TIMER);
1869 } 2185 }
1870} 2186}
1871 2187
1872#if EV_PERIODIC_ENABLE 2188#if EV_PERIODIC_ENABLE
1873/* make periodics pending */ 2189/* make periodics pending */
… …
1926 feed_reverse_done (EV_A_ EV_PERIODIC); 2242 feed_reverse_done (EV_A_ EV_PERIODIC);
1927 } 2243 }
1928} 2244}
1929 2245
1930/* simply recalculate all periodics */ 2246/* simply recalculate all periodics */
1931/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2247/* TODO: maybe ensure that at least one event happens when jumping forward? */
1932static void noinline 2248static void noinline
1933periodics_reschedule (EV_P) 2249periodics_reschedule (EV_P)
1934{ 2250{
1935 int i; 2251 int i;
1936 2252
… …
1964 ANHE_at_cache (*he); 2280 ANHE_at_cache (*he);
1965 } 2281 }
1966} 2282}
1967 2283
1968/* fetch new monotonic and realtime times from the kernel */ 2284/* fetch new monotonic and realtime times from the kernel */
1969/* also detetc if there was a timejump, and act accordingly */ 2285/* also detect if there was a timejump, and act accordingly */
1970inline_speed void 2286inline_speed void
1971time_update (EV_P_ ev_tstamp max_block) 2287time_update (EV_P_ ev_tstamp max_block)
1972{ 2288{
1973#if EV_USE_MONOTONIC 2289#if EV_USE_MONOTONIC
1974 if (expect_true (have_monotonic)) 2290 if (expect_true (have_monotonic))
… …
2032 mn_now = ev_rt_now; 2348 mn_now = ev_rt_now;
2033 } 2349 }
2034} 2350}
2035 2351
2036void 2352void
2037ev_loop (EV_P_ int flags) 2353ev_run (EV_P_ int flags)
2038{ 2354{
2355#if EV_FEATURE_API
2039 ++loop_depth; 2356 ++loop_depth;
2357#endif
2040 2358
2359 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2360
2041 loop_done = EVUNLOOP_CANCEL; 2361 loop_done = EVBREAK_CANCEL;
2042 2362
2043 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2363 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2044 2364
2045 do 2365 do
2046 { 2366 {
2047#if EV_VERIFY >= 2 2367#if EV_VERIFY >= 2
2048 ev_loop_verify (EV_A); 2368 ev_verify (EV_A);
2049#endif 2369#endif
2050 2370
2051#ifndef _WIN32 2371#ifndef _WIN32
2052 if (expect_false (curpid)) /* penalise the forking check even more */ 2372 if (expect_false (curpid)) /* penalise the forking check even more */
2053 if (expect_false (getpid () != curpid)) 2373 if (expect_false (getpid () != curpid))
… …
2061 /* we might have forked, so queue fork handlers */ 2381 /* we might have forked, so queue fork handlers */
2062 if (expect_false (postfork)) 2382 if (expect_false (postfork))
2063 if (forkcnt) 2383 if (forkcnt)
2064 { 2384 {
2065 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2385 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2066 call_pending (EV_A); 2386 EV_INVOKE_PENDING;
2067 } 2387 }
2068#endif 2388#endif
2069 2389
2390#if EV_PREPARE_ENABLE
2070 /* queue prepare watchers (and execute them) */ 2391 /* queue prepare watchers (and execute them) */
2071 if (expect_false (preparecnt)) 2392 if (expect_false (preparecnt))
2072 { 2393 {
2073 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2394 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2074 call_pending (EV_A); 2395 EV_INVOKE_PENDING;
2075 } 2396 }
2397#endif
2398
2399 if (expect_false (loop_done))
2400 break;
2076 2401
2077 /* we might have forked, so reify kernel state if necessary */ 2402 /* we might have forked, so reify kernel state if necessary */
2078 if (expect_false (postfork)) 2403 if (expect_false (postfork))
2079 loop_fork (EV_A); 2404 loop_fork (EV_A);
2080 2405
… …
2084 /* calculate blocking time */ 2409 /* calculate blocking time */
2085 { 2410 {
2086 ev_tstamp waittime = 0.; 2411 ev_tstamp waittime = 0.;
2087 ev_tstamp sleeptime = 0.; 2412 ev_tstamp sleeptime = 0.;
2088 2413
2414 /* remember old timestamp for io_blocktime calculation */
2415 ev_tstamp prev_mn_now = mn_now;
2416
2417 /* update time to cancel out callback processing overhead */
2418 time_update (EV_A_ 1e100);
2419
2089 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2420 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2090 { 2421 {
2091 /* remember old timestamp for io_blocktime calculation */
2092 ev_tstamp prev_mn_now = mn_now;
2093
2094 /* update time to cancel out callback processing overhead */
2095 time_update (EV_A_ 1e100);
2096
2097 waittime = MAX_BLOCKTIME; 2422 waittime = MAX_BLOCKTIME;
2098 2423
2099 if (timercnt) 2424 if (timercnt)
2100 { 2425 {
2101 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2426 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
2128 waittime -= sleeptime; 2453 waittime -= sleeptime;
2129 } 2454 }
2130 } 2455 }
2131 } 2456 }
2132 2457
2458#if EV_FEATURE_API
2133 ++loop_count; 2459 ++loop_count;
2460#endif
2461 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2134 backend_poll (EV_A_ waittime); 2462 backend_poll (EV_A_ waittime);
2463 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2135 2464
2136 /* update ev_rt_now, do magic */ 2465 /* update ev_rt_now, do magic */
2137 time_update (EV_A_ waittime + sleeptime); 2466 time_update (EV_A_ waittime + sleeptime);
2138 } 2467 }
2139 2468
… …
2146#if EV_IDLE_ENABLE 2475#if EV_IDLE_ENABLE
2147 /* queue idle watchers unless other events are pending */ 2476 /* queue idle watchers unless other events are pending */
2148 idle_reify (EV_A); 2477 idle_reify (EV_A);
2149#endif 2478#endif
2150 2479
2480#if EV_CHECK_ENABLE
2151 /* queue check watchers, to be executed first */ 2481 /* queue check watchers, to be executed first */
2152 if (expect_false (checkcnt)) 2482 if (expect_false (checkcnt))
2153 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2483 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2484#endif
2154 2485
2155 call_pending (EV_A); 2486 EV_INVOKE_PENDING;
2156 } 2487 }
2157 while (expect_true ( 2488 while (expect_true (
2158 activecnt 2489 activecnt
2159 && !loop_done 2490 && !loop_done
2160 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2491 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2161 )); 2492 ));
2162 2493
2163 if (loop_done == EVUNLOOP_ONE) 2494 if (loop_done == EVBREAK_ONE)
2164 loop_done = EVUNLOOP_CANCEL; 2495 loop_done = EVBREAK_CANCEL;
2165 2496
2497#if EV_FEATURE_API
2166 --loop_depth; 2498 --loop_depth;
2499#endif
2167} 2500}
2168 2501
2169void 2502void
2170ev_unloop (EV_P_ int how) 2503ev_break (EV_P_ int how)
2171{ 2504{
2172 loop_done = how; 2505 loop_done = how;
2173} 2506}
2174 2507
2175void 2508void
… …
2222inline_size void 2555inline_size void
2223wlist_del (WL *head, WL elem) 2556wlist_del (WL *head, WL elem)
2224{ 2557{
2225 while (*head) 2558 while (*head)
2226 { 2559 {
2227 if (*head == elem) 2560 if (expect_true (*head == elem))
2228 { 2561 {
2229 *head = elem->next; 2562 *head = elem->next;
2230 return; 2563 break;
2231 } 2564 }
2232 2565
2233 head = &(*head)->next; 2566 head = &(*head)->next;
2234 } 2567 }
2235} 2568}
… …
2295 2628
2296 if (expect_false (ev_is_active (w))) 2629 if (expect_false (ev_is_active (w)))
2297 return; 2630 return;
2298 2631
2299 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2632 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2300 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2633 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2301 2634
2302 EV_FREQUENT_CHECK; 2635 EV_FREQUENT_CHECK;
2303 2636
2304 ev_start (EV_A_ (W)w, 1); 2637 ev_start (EV_A_ (W)w, 1);
2305 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2638 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2306 wlist_add (&anfds[fd].head, (WL)w); 2639 wlist_add (&anfds[fd].head, (WL)w);
2307 2640
2308 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 2641 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2309 w->events &= ~EV__IOFDSET; 2642 w->events &= ~EV__IOFDSET;
2310 2643
2311 EV_FREQUENT_CHECK; 2644 EV_FREQUENT_CHECK;
2312} 2645}
2313 2646
… …
2323 EV_FREQUENT_CHECK; 2656 EV_FREQUENT_CHECK;
2324 2657
2325 wlist_del (&anfds[w->fd].head, (WL)w); 2658 wlist_del (&anfds[w->fd].head, (WL)w);
2326 ev_stop (EV_A_ (W)w); 2659 ev_stop (EV_A_ (W)w);
2327 2660
2328 fd_change (EV_A_ w->fd, 1); 2661 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2329 2662
2330 EV_FREQUENT_CHECK; 2663 EV_FREQUENT_CHECK;
2331} 2664}
2332 2665
2333void noinline 2666void noinline
… …
2375 timers [active] = timers [timercnt + HEAP0]; 2708 timers [active] = timers [timercnt + HEAP0];
2376 adjustheap (timers, timercnt, active); 2709 adjustheap (timers, timercnt, active);
2377 } 2710 }
2378 } 2711 }
2379 2712
2380 EV_FREQUENT_CHECK;
2381
2382 ev_at (w) -= mn_now; 2713 ev_at (w) -= mn_now;
2383 2714
2384 ev_stop (EV_A_ (W)w); 2715 ev_stop (EV_A_ (W)w);
2716
2717 EV_FREQUENT_CHECK;
2385} 2718}
2386 2719
2387void noinline 2720void noinline
2388ev_timer_again (EV_P_ ev_timer *w) 2721ev_timer_again (EV_P_ ev_timer *w)
2389{ 2722{
… …
2407 } 2740 }
2408 2741
2409 EV_FREQUENT_CHECK; 2742 EV_FREQUENT_CHECK;
2410} 2743}
2411 2744
2745ev_tstamp
2746ev_timer_remaining (EV_P_ ev_timer *w)
2747{
2748 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2749}
2750
2412#if EV_PERIODIC_ENABLE 2751#if EV_PERIODIC_ENABLE
2413void noinline 2752void noinline
2414ev_periodic_start (EV_P_ ev_periodic *w) 2753ev_periodic_start (EV_P_ ev_periodic *w)
2415{ 2754{
2416 if (expect_false (ev_is_active (w))) 2755 if (expect_false (ev_is_active (w)))
… …
2462 periodics [active] = periodics [periodiccnt + HEAP0]; 2801 periodics [active] = periodics [periodiccnt + HEAP0];
2463 adjustheap (periodics, periodiccnt, active); 2802 adjustheap (periodics, periodiccnt, active);
2464 } 2803 }
2465 } 2804 }
2466 2805
2467 EV_FREQUENT_CHECK;
2468
2469 ev_stop (EV_A_ (W)w); 2806 ev_stop (EV_A_ (W)w);
2807
2808 EV_FREQUENT_CHECK;
2470} 2809}
2471 2810
2472void noinline 2811void noinline
2473ev_periodic_again (EV_P_ ev_periodic *w) 2812ev_periodic_again (EV_P_ ev_periodic *w)
2474{ 2813{
… …
2480 2819
2481#ifndef SA_RESTART 2820#ifndef SA_RESTART
2482# define SA_RESTART 0 2821# define SA_RESTART 0
2483#endif 2822#endif
2484 2823
2824#if EV_SIGNAL_ENABLE
2825
2485void noinline 2826void noinline
2486ev_signal_start (EV_P_ ev_signal *w) 2827ev_signal_start (EV_P_ ev_signal *w)
2487{ 2828{
2488#if EV_MULTIPLICITY
2489 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2490#endif
2491 if (expect_false (ev_is_active (w))) 2829 if (expect_false (ev_is_active (w)))
2492 return; 2830 return;
2493 2831
2494 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 2832 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2495 2833
2496 evpipe_init (EV_A); 2834#if EV_MULTIPLICITY
2835 assert (("libev: a signal must not be attached to two different loops",
2836 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2497 2837
2498 EV_FREQUENT_CHECK; 2838 signals [w->signum - 1].loop = EV_A;
2839#endif
2499 2840
2841 EV_FREQUENT_CHECK;
2842
2843#if EV_USE_SIGNALFD
2844 if (sigfd == -2)
2500 { 2845 {
2501#ifndef _WIN32 2846 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2502 sigset_t full, prev; 2847 if (sigfd < 0 && errno == EINVAL)
2503 sigfillset (&full); 2848 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2504 sigprocmask (SIG_SETMASK, &full, &prev);
2505#endif
2506 2849
2507 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 2850 if (sigfd >= 0)
2851 {
2852 fd_intern (sigfd); /* doing it twice will not hurt */
2508 2853
2509#ifndef _WIN32 2854 sigemptyset (&sigfd_set);
2510 sigprocmask (SIG_SETMASK, &prev, 0); 2855
2511#endif 2856 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2857 ev_set_priority (&sigfd_w, EV_MAXPRI);
2858 ev_io_start (EV_A_ &sigfd_w);
2859 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2860 }
2512 } 2861 }
2862
2863 if (sigfd >= 0)
2864 {
2865 /* TODO: check .head */
2866 sigaddset (&sigfd_set, w->signum);
2867 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2868
2869 signalfd (sigfd, &sigfd_set, 0);
2870 }
2871#endif
2513 2872
2514 ev_start (EV_A_ (W)w, 1); 2873 ev_start (EV_A_ (W)w, 1);
2515 wlist_add (&signals [w->signum - 1].head, (WL)w); 2874 wlist_add (&signals [w->signum - 1].head, (WL)w);
2516 2875
2517 if (!((WL)w)->next) 2876 if (!((WL)w)->next)
2877# if EV_USE_SIGNALFD
2878 if (sigfd < 0) /*TODO*/
2879# endif
2518 { 2880 {
2519#if _WIN32 2881# ifdef _WIN32
2882 evpipe_init (EV_A);
2883
2520 signal (w->signum, ev_sighandler); 2884 signal (w->signum, ev_sighandler);
2521#else 2885# else
2522 struct sigaction sa; 2886 struct sigaction sa;
2887
2888 evpipe_init (EV_A);
2889
2523 sa.sa_handler = ev_sighandler; 2890 sa.sa_handler = ev_sighandler;
2524 sigfillset (&sa.sa_mask); 2891 sigfillset (&sa.sa_mask);
2525 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2892 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2526 sigaction (w->signum, &sa, 0); 2893 sigaction (w->signum, &sa, 0);
2894
2895 if (origflags & EVFLAG_NOSIGMASK)
2896 {
2897 sigemptyset (&sa.sa_mask);
2898 sigaddset (&sa.sa_mask, w->signum);
2899 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2900 }
2527#endif 2901#endif
2528 } 2902 }
2529 2903
2530 EV_FREQUENT_CHECK; 2904 EV_FREQUENT_CHECK;
2531} 2905}
2532 2906
2533void noinline 2907void noinline
… …
2541 2915
2542 wlist_del (&signals [w->signum - 1].head, (WL)w); 2916 wlist_del (&signals [w->signum - 1].head, (WL)w);
2543 ev_stop (EV_A_ (W)w); 2917 ev_stop (EV_A_ (W)w);
2544 2918
2545 if (!signals [w->signum - 1].head) 2919 if (!signals [w->signum - 1].head)
2920 {
2921#if EV_MULTIPLICITY
2922 signals [w->signum - 1].loop = 0; /* unattach from signal */
2923#endif
2924#if EV_USE_SIGNALFD
2925 if (sigfd >= 0)
2926 {
2927 sigset_t ss;
2928
2929 sigemptyset (&ss);
2930 sigaddset (&ss, w->signum);
2931 sigdelset (&sigfd_set, w->signum);
2932
2933 signalfd (sigfd, &sigfd_set, 0);
2934 sigprocmask (SIG_UNBLOCK, &ss, 0);
2935 }
2936 else
2937#endif
2546 signal (w->signum, SIG_DFL); 2938 signal (w->signum, SIG_DFL);
2939 }
2547 2940
2548 EV_FREQUENT_CHECK; 2941 EV_FREQUENT_CHECK;
2549} 2942}
2943
2944#endif
2945
2946#if EV_CHILD_ENABLE
2550 2947
2551void 2948void
2552ev_child_start (EV_P_ ev_child *w) 2949ev_child_start (EV_P_ ev_child *w)
2553{ 2950{
2554#if EV_MULTIPLICITY 2951#if EV_MULTIPLICITY
… …
2558 return; 2955 return;
2559 2956
2560 EV_FREQUENT_CHECK; 2957 EV_FREQUENT_CHECK;
2561 2958
2562 ev_start (EV_A_ (W)w, 1); 2959 ev_start (EV_A_ (W)w, 1);
2563 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2960 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2564 2961
2565 EV_FREQUENT_CHECK; 2962 EV_FREQUENT_CHECK;
2566} 2963}
2567 2964
2568void 2965void
… …
2572 if (expect_false (!ev_is_active (w))) 2969 if (expect_false (!ev_is_active (w)))
2573 return; 2970 return;
2574 2971
2575 EV_FREQUENT_CHECK; 2972 EV_FREQUENT_CHECK;
2576 2973
2577 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2974 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2578 ev_stop (EV_A_ (W)w); 2975 ev_stop (EV_A_ (W)w);
2579 2976
2580 EV_FREQUENT_CHECK; 2977 EV_FREQUENT_CHECK;
2581} 2978}
2979
2980#endif
2582 2981
2583#if EV_STAT_ENABLE 2982#if EV_STAT_ENABLE
2584 2983
2585# ifdef _WIN32 2984# ifdef _WIN32
2586# undef lstat 2985# undef lstat
… …
2592#define MIN_STAT_INTERVAL 0.1074891 2991#define MIN_STAT_INTERVAL 0.1074891
2593 2992
2594static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2993static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2595 2994
2596#if EV_USE_INOTIFY 2995#if EV_USE_INOTIFY
2597# define EV_INOTIFY_BUFSIZE 8192 2996
2997/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
2998# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2598 2999
2599static void noinline 3000static void noinline
2600infy_add (EV_P_ ev_stat *w) 3001infy_add (EV_P_ ev_stat *w)
2601{ 3002{
2602 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); 3003 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);
2603 3004
2604 if (w->wd < 0) 3005 if (w->wd >= 0)
3006 {
3007 struct statfs sfs;
3008
3009 /* now local changes will be tracked by inotify, but remote changes won't */
3010 /* unless the filesystem is known to be local, we therefore still poll */
3011 /* also do poll on <2.6.25, but with normal frequency */
3012
3013 if (!fs_2625)
3014 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3015 else if (!statfs (w->path, &sfs)
3016 && (sfs.f_type == 0x1373 /* devfs */
3017 || sfs.f_type == 0xEF53 /* ext2/3 */
3018 || sfs.f_type == 0x3153464a /* jfs */
3019 || sfs.f_type == 0x52654973 /* reiser3 */
3020 || sfs.f_type == 0x01021994 /* tempfs */
3021 || sfs.f_type == 0x58465342 /* xfs */))
3022 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3023 else
3024 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2605 { 3025 }
3026 else
3027 {
3028 /* can't use inotify, continue to stat */
2606 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3029 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2607 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2608 3030
2609 /* monitor some parent directory for speedup hints */ 3031 /* if path is not there, monitor some parent directory for speedup hints */
2610 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3032 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2611 /* but an efficiency issue only */ 3033 /* but an efficiency issue only */
2612 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3034 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2613 { 3035 {
2614 char path [4096]; 3036 char path [4096];
… …
2630 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3052 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2631 } 3053 }
2632 } 3054 }
2633 3055
2634 if (w->wd >= 0) 3056 if (w->wd >= 0)
2635 {
2636 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3057 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2637 3058
2638 /* now local changes will be tracked by inotify, but remote changes won't */ 3059 /* now re-arm timer, if required */
2639 /* unless the filesystem it known to be local, we therefore still poll */ 3060 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2640 /* also do poll on <2.6.25, but with normal frequency */
2641 struct statfs sfs;
2642
2643 if (fs_2625 && !statfs (w->path, &sfs))
2644 if (sfs.f_type == 0x1373 /* devfs */
2645 || sfs.f_type == 0xEF53 /* ext2/3 */
2646 || sfs.f_type == 0x3153464a /* jfs */
2647 || sfs.f_type == 0x52654973 /* reiser3 */
2648 || sfs.f_type == 0x01021994 /* tempfs */
2649 || sfs.f_type == 0x58465342 /* xfs */)
2650 return;
2651
2652 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2653 ev_timer_again (EV_A_ &w->timer); 3061 ev_timer_again (EV_A_ &w->timer);
2654 } 3062 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2655} 3063}
2656 3064
2657static void noinline 3065static void noinline
2658infy_del (EV_P_ ev_stat *w) 3066infy_del (EV_P_ ev_stat *w)
2659{ 3067{
… …
2662 3070
2663 if (wd < 0) 3071 if (wd < 0)
2664 return; 3072 return;
2665 3073
2666 w->wd = -2; 3074 w->wd = -2;
2667 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3075 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2668 wlist_del (&fs_hash [slot].head, (WL)w); 3076 wlist_del (&fs_hash [slot].head, (WL)w);
2669 3077
2670 /* remove this watcher, if others are watching it, they will rearm */ 3078 /* remove this watcher, if others are watching it, they will rearm */
2671 inotify_rm_watch (fs_fd, wd); 3079 inotify_rm_watch (fs_fd, wd);
2672} 3080}
… …
2674static void noinline 3082static void noinline
2675infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3083infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2676{ 3084{
2677 if (slot < 0) 3085 if (slot < 0)
2678 /* overflow, need to check for all hash slots */ 3086 /* overflow, need to check for all hash slots */
2679 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3087 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2680 infy_wd (EV_A_ slot, wd, ev); 3088 infy_wd (EV_A_ slot, wd, ev);
2681 else 3089 else
2682 { 3090 {
2683 WL w_; 3091 WL w_;
2684 3092
2685 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3093 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2686 { 3094 {
2687 ev_stat *w = (ev_stat *)w_; 3095 ev_stat *w = (ev_stat *)w_;
2688 w_ = w_->next; /* lets us remove this watcher and all before it */ 3096 w_ = w_->next; /* lets us remove this watcher and all before it */
2689 3097
2690 if (w->wd == wd || wd == -1) 3098 if (w->wd == wd || wd == -1)
2691 { 3099 {
2692 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3100 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2693 { 3101 {
2694 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3102 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2695 w->wd = -1; 3103 w->wd = -1;
2696 infy_add (EV_A_ w); /* re-add, no matter what */ 3104 infy_add (EV_A_ w); /* re-add, no matter what */
2697 } 3105 }
2698 3106
2699 stat_timer_cb (EV_A_ &w->timer, 0); 3107 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2704 3112
2705static void 3113static void
2706infy_cb (EV_P_ ev_io *w, int revents) 3114infy_cb (EV_P_ ev_io *w, int revents)
2707{ 3115{
2708 char buf [EV_INOTIFY_BUFSIZE]; 3116 char buf [EV_INOTIFY_BUFSIZE];
2709 struct inotify_event *ev = (struct inotify_event *)buf;
2710 int ofs; 3117 int ofs;
2711 int len = read (fs_fd, buf, sizeof (buf)); 3118 int len = read (fs_fd, buf, sizeof (buf));
2712 3119
2713 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3120 for (ofs = 0; ofs < len; )
3121 {
3122 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2714 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3123 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3124 ofs += sizeof (struct inotify_event) + ev->len;
3125 }
2715} 3126}
2716 3127
2717inline_size void 3128inline_size void
2718check_2625 (EV_P) 3129ev_check_2625 (EV_P)
2719{ 3130{
2720 /* kernels < 2.6.25 are borked 3131 /* kernels < 2.6.25 are borked
2721 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3132 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2722 */ 3133 */
2723 struct utsname buf; 3134 if (ev_linux_version () < 0x020619)
2724 int major, minor, micro;
2725
2726 if (uname (&buf))
2727 return; 3135 return;
2728 3136
2729 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2730 return;
2731
2732 if (major < 2
2733 || (major == 2 && minor < 6)
2734 || (major == 2 && minor == 6 && micro < 25))
2735 return;
2736
2737 fs_2625 = 1; 3137 fs_2625 = 1;
3138}
3139
3140inline_size int
3141infy_newfd (void)
3142{
3143#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3144 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3145 if (fd >= 0)
3146 return fd;
3147#endif
3148 return inotify_init ();
2738} 3149}
2739 3150
2740inline_size void 3151inline_size void
2741infy_init (EV_P) 3152infy_init (EV_P)
2742{ 3153{
2743 if (fs_fd != -2) 3154 if (fs_fd != -2)
2744 return; 3155 return;
2745 3156
2746 fs_fd = -1; 3157 fs_fd = -1;
2747 3158
2748 check_2625 (EV_A); 3159 ev_check_2625 (EV_A);
2749 3160
2750 fs_fd = inotify_init (); 3161 fs_fd = infy_newfd ();
2751 3162
2752 if (fs_fd >= 0) 3163 if (fs_fd >= 0)
2753 { 3164 {
3165 fd_intern (fs_fd);
2754 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3166 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2755 ev_set_priority (&fs_w, EV_MAXPRI); 3167 ev_set_priority (&fs_w, EV_MAXPRI);
2756 ev_io_start (EV_A_ &fs_w); 3168 ev_io_start (EV_A_ &fs_w);
3169 ev_unref (EV_A);
2757 } 3170 }
2758} 3171}
2759 3172
2760inline_size void 3173inline_size void
2761infy_fork (EV_P) 3174infy_fork (EV_P)
… …
2763 int slot; 3176 int slot;
2764 3177
2765 if (fs_fd < 0) 3178 if (fs_fd < 0)
2766 return; 3179 return;
2767 3180
3181 ev_ref (EV_A);
3182 ev_io_stop (EV_A_ &fs_w);
2768 close (fs_fd); 3183 close (fs_fd);
2769 fs_fd = inotify_init (); 3184 fs_fd = infy_newfd ();
2770 3185
3186 if (fs_fd >= 0)
3187 {
3188 fd_intern (fs_fd);
3189 ev_io_set (&fs_w, fs_fd, EV_READ);
3190 ev_io_start (EV_A_ &fs_w);
3191 ev_unref (EV_A);
3192 }
3193
2771 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3194 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2772 { 3195 {
2773 WL w_ = fs_hash [slot].head; 3196 WL w_ = fs_hash [slot].head;
2774 fs_hash [slot].head = 0; 3197 fs_hash [slot].head = 0;
2775 3198
2776 while (w_) 3199 while (w_)
… …
2781 w->wd = -1; 3204 w->wd = -1;
2782 3205
2783 if (fs_fd >= 0) 3206 if (fs_fd >= 0)
2784 infy_add (EV_A_ w); /* re-add, no matter what */ 3207 infy_add (EV_A_ w); /* re-add, no matter what */
2785 else 3208 else
3209 {
3210 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3211 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2786 ev_timer_again (EV_A_ &w->timer); 3212 ev_timer_again (EV_A_ &w->timer);
3213 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3214 }
2787 } 3215 }
2788 } 3216 }
2789} 3217}
2790 3218
2791#endif 3219#endif
… …
2808static void noinline 3236static void noinline
2809stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3237stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2810{ 3238{
2811 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3239 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2812 3240
2813 /* we copy this here each the time so that */ 3241 ev_statdata prev = w->attr;
2814 /* prev has the old value when the callback gets invoked */
2815 w->prev = w->attr;
2816 ev_stat_stat (EV_A_ w); 3242 ev_stat_stat (EV_A_ w);
2817 3243
2818 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3244 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2819 if ( 3245 if (
2820 w->prev.st_dev != w->attr.st_dev 3246 prev.st_dev != w->attr.st_dev
2821 || w->prev.st_ino != w->attr.st_ino 3247 || prev.st_ino != w->attr.st_ino
2822 || w->prev.st_mode != w->attr.st_mode 3248 || prev.st_mode != w->attr.st_mode
2823 || w->prev.st_nlink != w->attr.st_nlink 3249 || prev.st_nlink != w->attr.st_nlink
2824 || w->prev.st_uid != w->attr.st_uid 3250 || prev.st_uid != w->attr.st_uid
2825 || w->prev.st_gid != w->attr.st_gid 3251 || prev.st_gid != w->attr.st_gid
2826 || w->prev.st_rdev != w->attr.st_rdev 3252 || prev.st_rdev != w->attr.st_rdev
2827 || w->prev.st_size != w->attr.st_size 3253 || prev.st_size != w->attr.st_size
2828 || w->prev.st_atime != w->attr.st_atime 3254 || prev.st_atime != w->attr.st_atime
2829 || w->prev.st_mtime != w->attr.st_mtime 3255 || prev.st_mtime != w->attr.st_mtime
2830 || w->prev.st_ctime != w->attr.st_ctime 3256 || prev.st_ctime != w->attr.st_ctime
2831 ) { 3257 ) {
3258 /* we only update w->prev on actual differences */
3259 /* in case we test more often than invoke the callback, */
3260 /* to ensure that prev is always different to attr */
3261 w->prev = prev;
3262
2832 #if EV_USE_INOTIFY 3263 #if EV_USE_INOTIFY
2833 if (fs_fd >= 0) 3264 if (fs_fd >= 0)
2834 { 3265 {
2835 infy_del (EV_A_ w); 3266 infy_del (EV_A_ w);
2836 infy_add (EV_A_ w); 3267 infy_add (EV_A_ w);
… …
2861 3292
2862 if (fs_fd >= 0) 3293 if (fs_fd >= 0)
2863 infy_add (EV_A_ w); 3294 infy_add (EV_A_ w);
2864 else 3295 else
2865#endif 3296#endif
3297 {
2866 ev_timer_again (EV_A_ &w->timer); 3298 ev_timer_again (EV_A_ &w->timer);
3299 ev_unref (EV_A);
3300 }
2867 3301
2868 ev_start (EV_A_ (W)w, 1); 3302 ev_start (EV_A_ (W)w, 1);
2869 3303
2870 EV_FREQUENT_CHECK; 3304 EV_FREQUENT_CHECK;
2871} 3305}
… …
2880 EV_FREQUENT_CHECK; 3314 EV_FREQUENT_CHECK;
2881 3315
2882#if EV_USE_INOTIFY 3316#if EV_USE_INOTIFY
2883 infy_del (EV_A_ w); 3317 infy_del (EV_A_ w);
2884#endif 3318#endif
3319
3320 if (ev_is_active (&w->timer))
3321 {
3322 ev_ref (EV_A);
2885 ev_timer_stop (EV_A_ &w->timer); 3323 ev_timer_stop (EV_A_ &w->timer);
3324 }
2886 3325
2887 ev_stop (EV_A_ (W)w); 3326 ev_stop (EV_A_ (W)w);
2888 3327
2889 EV_FREQUENT_CHECK; 3328 EV_FREQUENT_CHECK;
2890} 3329}
… …
2935 3374
2936 EV_FREQUENT_CHECK; 3375 EV_FREQUENT_CHECK;
2937} 3376}
2938#endif 3377#endif
2939 3378
3379#if EV_PREPARE_ENABLE
2940void 3380void
2941ev_prepare_start (EV_P_ ev_prepare *w) 3381ev_prepare_start (EV_P_ ev_prepare *w)
2942{ 3382{
2943 if (expect_false (ev_is_active (w))) 3383 if (expect_false (ev_is_active (w)))
2944 return; 3384 return;
… …
2970 3410
2971 ev_stop (EV_A_ (W)w); 3411 ev_stop (EV_A_ (W)w);
2972 3412
2973 EV_FREQUENT_CHECK; 3413 EV_FREQUENT_CHECK;
2974} 3414}
3415#endif
2975 3416
3417#if EV_CHECK_ENABLE
2976void 3418void
2977ev_check_start (EV_P_ ev_check *w) 3419ev_check_start (EV_P_ ev_check *w)
2978{ 3420{
2979 if (expect_false (ev_is_active (w))) 3421 if (expect_false (ev_is_active (w)))
2980 return; 3422 return;
… …
3006 3448
3007 ev_stop (EV_A_ (W)w); 3449 ev_stop (EV_A_ (W)w);
3008 3450
3009 EV_FREQUENT_CHECK; 3451 EV_FREQUENT_CHECK;
3010} 3452}
3453#endif
3011 3454
3012#if EV_EMBED_ENABLE 3455#if EV_EMBED_ENABLE
3013void noinline 3456void noinline
3014ev_embed_sweep (EV_P_ ev_embed *w) 3457ev_embed_sweep (EV_P_ ev_embed *w)
3015{ 3458{
3016 ev_loop (w->other, EVLOOP_NONBLOCK); 3459 ev_run (w->other, EVRUN_NOWAIT);
3017} 3460}
3018 3461
3019static void 3462static void
3020embed_io_cb (EV_P_ ev_io *io, int revents) 3463embed_io_cb (EV_P_ ev_io *io, int revents)
3021{ 3464{
3022 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3465 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3023 3466
3024 if (ev_cb (w)) 3467 if (ev_cb (w))
3025 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3468 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3026 else 3469 else
3027 ev_loop (w->other, EVLOOP_NONBLOCK); 3470 ev_run (w->other, EVRUN_NOWAIT);
3028} 3471}
3029 3472
3030static void 3473static void
3031embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3474embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3032{ 3475{
3033 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3476 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3034 3477
3035 { 3478 {
3036 struct ev_loop *loop = w->other; 3479 EV_P = w->other;
3037 3480
3038 while (fdchangecnt) 3481 while (fdchangecnt)
3039 { 3482 {
3040 fd_reify (EV_A); 3483 fd_reify (EV_A);
3041 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3484 ev_run (EV_A_ EVRUN_NOWAIT);
3042 } 3485 }
3043 } 3486 }
3044} 3487}
3045 3488
3046static void 3489static void
… …
3049 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3492 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3050 3493
3051 ev_embed_stop (EV_A_ w); 3494 ev_embed_stop (EV_A_ w);
3052 3495
3053 { 3496 {
3054 struct ev_loop *loop = w->other; 3497 EV_P = w->other;
3055 3498
3056 ev_loop_fork (EV_A); 3499 ev_loop_fork (EV_A);
3057 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3500 ev_run (EV_A_ EVRUN_NOWAIT);
3058 } 3501 }
3059 3502
3060 ev_embed_start (EV_A_ w); 3503 ev_embed_start (EV_A_ w);
3061} 3504}
3062 3505
… …
3073{ 3516{
3074 if (expect_false (ev_is_active (w))) 3517 if (expect_false (ev_is_active (w)))
3075 return; 3518 return;
3076 3519
3077 { 3520 {
3078 struct ev_loop *loop = w->other; 3521 EV_P = w->other;
3079 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3522 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3080 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3523 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3081 } 3524 }
3082 3525
3083 EV_FREQUENT_CHECK; 3526 EV_FREQUENT_CHECK;
… …
3110 3553
3111 ev_io_stop (EV_A_ &w->io); 3554 ev_io_stop (EV_A_ &w->io);
3112 ev_prepare_stop (EV_A_ &w->prepare); 3555 ev_prepare_stop (EV_A_ &w->prepare);
3113 ev_fork_stop (EV_A_ &w->fork); 3556 ev_fork_stop (EV_A_ &w->fork);
3114 3557
3558 ev_stop (EV_A_ (W)w);
3559
3115 EV_FREQUENT_CHECK; 3560 EV_FREQUENT_CHECK;
3116} 3561}
3117#endif 3562#endif
3118 3563
3119#if EV_FORK_ENABLE 3564#if EV_FORK_ENABLE
… …
3152 3597
3153 EV_FREQUENT_CHECK; 3598 EV_FREQUENT_CHECK;
3154} 3599}
3155#endif 3600#endif
3156 3601
3157#if EV_ASYNC_ENABLE 3602#if EV_CLEANUP_ENABLE
3158void 3603void
3159ev_async_start (EV_P_ ev_async *w) 3604ev_cleanup_start (EV_P_ ev_cleanup *w)
3160{ 3605{
3161 if (expect_false (ev_is_active (w))) 3606 if (expect_false (ev_is_active (w)))
3162 return; 3607 return;
3608
3609 EV_FREQUENT_CHECK;
3610
3611 ev_start (EV_A_ (W)w, ++cleanupcnt);
3612 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3613 cleanups [cleanupcnt - 1] = w;
3614
3615 /* cleanup watchers should never keep a refcount on the loop */
3616 ev_unref (EV_A);
3617 EV_FREQUENT_CHECK;
3618}
3619
3620void
3621ev_cleanup_stop (EV_P_ ev_cleanup *w)
3622{
3623 clear_pending (EV_A_ (W)w);
3624 if (expect_false (!ev_is_active (w)))
3625 return;
3626
3627 EV_FREQUENT_CHECK;
3628 ev_ref (EV_A);
3629
3630 {
3631 int active = ev_active (w);
3632
3633 cleanups [active - 1] = cleanups [--cleanupcnt];
3634 ev_active (cleanups [active - 1]) = active;
3635 }
3636
3637 ev_stop (EV_A_ (W)w);
3638
3639 EV_FREQUENT_CHECK;
3640}
3641#endif
3642
3643#if EV_ASYNC_ENABLE
3644void
3645ev_async_start (EV_P_ ev_async *w)
3646{
3647 if (expect_false (ev_is_active (w)))
3648 return;
3649
3650 w->sent = 0;
3163 3651
3164 evpipe_init (EV_A); 3652 evpipe_init (EV_A);
3165 3653
3166 EV_FREQUENT_CHECK; 3654 EV_FREQUENT_CHECK;
3167 3655
… …
3195 3683
3196void 3684void
3197ev_async_send (EV_P_ ev_async *w) 3685ev_async_send (EV_P_ ev_async *w)
3198{ 3686{
3199 w->sent = 1; 3687 w->sent = 1;
3200 evpipe_write (EV_A_ &gotasync); 3688 evpipe_write (EV_A_ &async_pending);
3201} 3689}
3202#endif 3690#endif
3203 3691
3204/*****************************************************************************/ 3692/*****************************************************************************/
3205 3693
… …
3245{ 3733{
3246 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3734 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3247 3735
3248 if (expect_false (!once)) 3736 if (expect_false (!once))
3249 { 3737 {
3250 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3738 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3251 return; 3739 return;
3252 } 3740 }
3253 3741
3254 once->cb = cb; 3742 once->cb = cb;
3255 once->arg = arg; 3743 once->arg = arg;
… …
3342 if (types & EV_ASYNC) 3830 if (types & EV_ASYNC)
3343 for (i = asynccnt; i--; ) 3831 for (i = asynccnt; i--; )
3344 cb (EV_A_ EV_ASYNC, asyncs [i]); 3832 cb (EV_A_ EV_ASYNC, asyncs [i]);
3345#endif 3833#endif
3346 3834
3835#if EV_PREPARE_ENABLE
3347 if (types & EV_PREPARE) 3836 if (types & EV_PREPARE)
3348 for (i = preparecnt; i--; ) 3837 for (i = preparecnt; i--; )
3349#if EV_EMBED_ENABLE 3838# if EV_EMBED_ENABLE
3350 if (ev_cb (prepares [i]) != embed_prepare_cb) 3839 if (ev_cb (prepares [i]) != embed_prepare_cb)
3351#endif 3840# endif
3352 cb (EV_A_ EV_PREPARE, prepares [i]); 3841 cb (EV_A_ EV_PREPARE, prepares [i]);
3842#endif
3353 3843
3844#if EV_CHECK_ENABLE
3354 if (types & EV_CHECK) 3845 if (types & EV_CHECK)
3355 for (i = checkcnt; i--; ) 3846 for (i = checkcnt; i--; )
3356 cb (EV_A_ EV_CHECK, checks [i]); 3847 cb (EV_A_ EV_CHECK, checks [i]);
3848#endif
3357 3849
3850#if EV_SIGNAL_ENABLE
3358 if (types & EV_SIGNAL) 3851 if (types & EV_SIGNAL)
3359 for (i = 0; i < signalmax; ++i) 3852 for (i = 0; i < EV_NSIG - 1; ++i)
3360 for (wl = signals [i].head; wl; ) 3853 for (wl = signals [i].head; wl; )
3361 { 3854 {
3362 wn = wl->next; 3855 wn = wl->next;
3363 cb (EV_A_ EV_SIGNAL, wl); 3856 cb (EV_A_ EV_SIGNAL, wl);
3364 wl = wn; 3857 wl = wn;
3365 } 3858 }
3859#endif
3366 3860
3861#if EV_CHILD_ENABLE
3367 if (types & EV_CHILD) 3862 if (types & EV_CHILD)
3368 for (i = EV_PID_HASHSIZE; i--; ) 3863 for (i = (EV_PID_HASHSIZE); i--; )
3369 for (wl = childs [i]; wl; ) 3864 for (wl = childs [i]; wl; )
3370 { 3865 {
3371 wn = wl->next; 3866 wn = wl->next;
3372 cb (EV_A_ EV_CHILD, wl); 3867 cb (EV_A_ EV_CHILD, wl);
3373 wl = wn; 3868 wl = wn;
3374 } 3869 }
3870#endif
3375/* EV_STAT 0x00001000 /* stat data changed */ 3871/* EV_STAT 0x00001000 /* stat data changed */
3376/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3872/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3377} 3873}
3378#endif 3874#endif
3379 3875
3380#if EV_MULTIPLICITY 3876#if EV_MULTIPLICITY
3381 #include "ev_wrap.h" 3877 #include "ev_wrap.h"
3382#endif 3878#endif
3383 3879
3384#ifdef __cplusplus 3880EV_CPP(})
3385}
3386#endif
3387 3881

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