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Comparing libev/ev.c (file contents):
Revision 1.293 by root, Mon Jun 29 18:46:52 2009 UTC vs.
Revision 1.364 by root, Sun Oct 24 21:51:03 2010 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 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
481#endif
482
483#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
484
485#if EV_MINPRI == EV_MAXPRI
486# define ABSPRI(w) (((W)w), 0)
392#else 487#else
393# define inline_speed static inline
394#endif
395
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 488# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
489#endif
398 490
399#define EMPTY /* required for microsofts broken pseudo-c compiler */ 491#define EMPTY /* required for microsofts broken pseudo-c compiler */
400#define EMPTY2(a,b) /* used to suppress some warnings */ 492#define EMPTY2(a,b) /* used to suppress some warnings */
401 493
402typedef ev_watcher *W; 494typedef ev_watcher *W;
… …
406#define ev_active(w) ((W)(w))->active 498#define ev_active(w) ((W)(w))->active
407#define ev_at(w) ((WT)(w))->at 499#define ev_at(w) ((WT)(w))->at
408 500
409#if EV_USE_REALTIME 501#if EV_USE_REALTIME
410/* 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 */
411/* giving it a reasonably high chance of working on typical architetcures */ 503/* giving it a reasonably high chance of working on typical architectures */
412static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 504static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
413#endif 505#endif
414 506
415#if EV_USE_MONOTONIC 507#if EV_USE_MONOTONIC
416static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 508static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
417#endif 509#endif
418 510
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
419#ifdef _WIN32 521#ifdef _WIN32
420# include "ev_win32.c" 522# include "ev_win32.c"
421#endif 523#endif
422 524
423/*****************************************************************************/ 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
424 576
425static void (*syserr_cb)(const char *msg); 577static void (*syserr_cb)(const char *msg);
426 578
427void 579void
428ev_set_syserr_cb (void (*cb)(const char *msg)) 580ev_set_syserr_cb (void (*cb)(const char *msg))
… …
438 590
439 if (syserr_cb) 591 if (syserr_cb)
440 syserr_cb (msg); 592 syserr_cb (msg);
441 else 593 else
442 { 594 {
595#if EV_AVOID_STDIO
596 const char *err = strerror (errno);
597
598 ev_printerr (msg);
599 ev_printerr (": ");
600 ev_printerr (err);
601 ev_printerr ("\n");
602#else
443 perror (msg); 603 perror (msg);
604#endif
444 abort (); 605 abort ();
445 } 606 }
446} 607}
447 608
448static void * 609static void *
449ev_realloc_emul (void *ptr, long size) 610ev_realloc_emul (void *ptr, long size)
450{ 611{
612#if __GLIBC__
613 return realloc (ptr, size);
614#else
451 /* some systems, notably openbsd and darwin, fail to properly 615 /* some systems, notably openbsd and darwin, fail to properly
452 * implement realloc (x, 0) (as required by both ansi c-98 and 616 * implement realloc (x, 0) (as required by both ansi c-89 and
453 * the single unix specification, so work around them here. 617 * the single unix specification, so work around them here.
454 */ 618 */
455 619
456 if (size) 620 if (size)
457 return realloc (ptr, size); 621 return realloc (ptr, size);
458 622
459 free (ptr); 623 free (ptr);
460 return 0; 624 return 0;
625#endif
461} 626}
462 627
463static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 628static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
464 629
465void 630void
… …
473{ 638{
474 ptr = alloc (ptr, size); 639 ptr = alloc (ptr, size);
475 640
476 if (!ptr && size) 641 if (!ptr && size)
477 { 642 {
643#if EV_AVOID_STDIO
644 ev_printerr ("libev: memory allocation failed, aborting.\n");
645#else
478 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 646 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
647#endif
479 abort (); 648 abort ();
480 } 649 }
481 650
482 return ptr; 651 return ptr;
483} 652}
… …
485#define ev_malloc(size) ev_realloc (0, (size)) 654#define ev_malloc(size) ev_realloc (0, (size))
486#define ev_free(ptr) ev_realloc ((ptr), 0) 655#define ev_free(ptr) ev_realloc ((ptr), 0)
487 656
488/*****************************************************************************/ 657/*****************************************************************************/
489 658
659/* set in reify when reification needed */
660#define EV_ANFD_REIFY 1
661
490/* file descriptor info structure */ 662/* file descriptor info structure */
491typedef struct 663typedef struct
492{ 664{
493 WL head; 665 WL head;
494 unsigned char events; /* the events watched for */ 666 unsigned char events; /* the events watched for */
495 unsigned char reify; /* flag set when this ANFD needs reification */ 667 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
496 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 668 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
497 unsigned char unused; 669 unsigned char unused;
498#if EV_USE_EPOLL 670#if EV_USE_EPOLL
499 unsigned int egen; /* generation counter to counter epoll bugs */ 671 unsigned int egen; /* generation counter to counter epoll bugs */
500#endif 672#endif
501#if EV_SELECT_IS_WINSOCKET 673#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
502 SOCKET handle; 674 SOCKET handle;
675#endif
676#if EV_USE_IOCP
677 OVERLAPPED or, ow;
503#endif 678#endif
504} ANFD; 679} ANFD;
505 680
506/* stores the pending event set for a given watcher */ 681/* stores the pending event set for a given watcher */
507typedef struct 682typedef struct
… …
562 737
563 static int ev_default_loop_ptr; 738 static int ev_default_loop_ptr;
564 739
565#endif 740#endif
566 741
742#if EV_FEATURE_API
743# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
744# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
745# define EV_INVOKE_PENDING invoke_cb (EV_A)
746#else
747# define EV_RELEASE_CB (void)0
748# define EV_ACQUIRE_CB (void)0
749# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
750#endif
751
752#define EVBREAK_RECURSE 0x80
753
567/*****************************************************************************/ 754/*****************************************************************************/
568 755
569#ifndef EV_HAVE_EV_TIME 756#ifndef EV_HAVE_EV_TIME
570ev_tstamp 757ev_tstamp
571ev_time (void) 758ev_time (void)
… …
614 if (delay > 0.) 801 if (delay > 0.)
615 { 802 {
616#if EV_USE_NANOSLEEP 803#if EV_USE_NANOSLEEP
617 struct timespec ts; 804 struct timespec ts;
618 805
619 ts.tv_sec = (time_t)delay; 806 EV_TS_SET (ts, delay);
620 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
621
622 nanosleep (&ts, 0); 807 nanosleep (&ts, 0);
623#elif defined(_WIN32) 808#elif defined(_WIN32)
624 Sleep ((unsigned long)(delay * 1e3)); 809 Sleep ((unsigned long)(delay * 1e3));
625#else 810#else
626 struct timeval tv; 811 struct timeval tv;
627 812
628 tv.tv_sec = (time_t)delay;
629 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
630
631 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 813 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
632 /* somehting not guaranteed by newer posix versions, but guaranteed */ 814 /* something not guaranteed by newer posix versions, but guaranteed */
633 /* by older ones */ 815 /* by older ones */
816 EV_TV_SET (tv, delay);
634 select (0, 0, 0, 0, &tv); 817 select (0, 0, 0, 0, &tv);
635#endif 818#endif
636 } 819 }
637} 820}
638 821
639/*****************************************************************************/ 822/*****************************************************************************/
640 823
641#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 824#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
642 825
643/* find a suitable new size for the given array, */ 826/* find a suitable new size for the given array, */
644/* hopefully by rounding to a ncie-to-malloc size */ 827/* hopefully by rounding to a nice-to-malloc size */
645inline_size int 828inline_size int
646array_nextsize (int elem, int cur, int cnt) 829array_nextsize (int elem, int cur, int cnt)
647{ 830{
648 int ncur = cur + 1; 831 int ncur = cur + 1;
649 832
… …
745} 928}
746 929
747/*****************************************************************************/ 930/*****************************************************************************/
748 931
749inline_speed void 932inline_speed void
750fd_event (EV_P_ int fd, int revents) 933fd_event_nocheck (EV_P_ int fd, int revents)
751{ 934{
752 ANFD *anfd = anfds + fd; 935 ANFD *anfd = anfds + fd;
753 ev_io *w; 936 ev_io *w;
754 937
755 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 938 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
759 if (ev) 942 if (ev)
760 ev_feed_event (EV_A_ (W)w, ev); 943 ev_feed_event (EV_A_ (W)w, ev);
761 } 944 }
762} 945}
763 946
947/* do not submit kernel events for fds that have reify set */
948/* because that means they changed while we were polling for new events */
949inline_speed void
950fd_event (EV_P_ int fd, int revents)
951{
952 ANFD *anfd = anfds + fd;
953
954 if (expect_true (!anfd->reify))
955 fd_event_nocheck (EV_A_ fd, revents);
956}
957
764void 958void
765ev_feed_fd_event (EV_P_ int fd, int revents) 959ev_feed_fd_event (EV_P_ int fd, int revents)
766{ 960{
767 if (fd >= 0 && fd < anfdmax) 961 if (fd >= 0 && fd < anfdmax)
768 fd_event (EV_A_ fd, revents); 962 fd_event_nocheck (EV_A_ fd, revents);
769} 963}
770 964
771/* make sure the external fd watch events are in-sync */ 965/* make sure the external fd watch events are in-sync */
772/* with the kernel/libev internal state */ 966/* with the kernel/libev internal state */
773inline_size void 967inline_size void
… …
779 { 973 {
780 int fd = fdchanges [i]; 974 int fd = fdchanges [i];
781 ANFD *anfd = anfds + fd; 975 ANFD *anfd = anfds + fd;
782 ev_io *w; 976 ev_io *w;
783 977
784 unsigned char events = 0; 978 unsigned char o_events = anfd->events;
979 unsigned char o_reify = anfd->reify;
785 980
786 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 981 anfd->reify = 0;
787 events |= (unsigned char)w->events;
788 982
789#if EV_SELECT_IS_WINSOCKET 983#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
790 if (events) 984 if (o_reify & EV__IOFDSET)
791 { 985 {
792 unsigned long arg; 986 unsigned long arg;
793 #ifdef EV_FD_TO_WIN32_HANDLE
794 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 987 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
795 #else
796 anfd->handle = _get_osfhandle (fd);
797 #endif
798 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 988 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
989 printf ("oi %d %x\n", fd, anfd->handle);//D
799 } 990 }
800#endif 991#endif
801 992
993 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
802 { 994 {
803 unsigned char o_events = anfd->events;
804 unsigned char o_reify = anfd->reify;
805
806 anfd->reify = 0;
807 anfd->events = events; 995 anfd->events = 0;
808 996
809 if (o_events != events || o_reify & EV__IOFDSET) 997 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
998 anfd->events |= (unsigned char)w->events;
999
1000 if (o_events != anfd->events)
1001 o_reify = EV__IOFDSET; /* actually |= */
1002 }
1003
1004 if (o_reify & EV__IOFDSET)
810 backend_modify (EV_A_ fd, o_events, events); 1005 backend_modify (EV_A_ fd, o_events, anfd->events);
811 }
812 } 1006 }
813 1007
814 fdchangecnt = 0; 1008 fdchangecnt = 0;
815} 1009}
816 1010
… …
840 ev_io_stop (EV_A_ w); 1034 ev_io_stop (EV_A_ w);
841 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1035 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
842 } 1036 }
843} 1037}
844 1038
845/* check whether the given fd is atcually valid, for error recovery */ 1039/* check whether the given fd is actually valid, for error recovery */
846inline_size int 1040inline_size int
847fd_valid (int fd) 1041fd_valid (int fd)
848{ 1042{
849#ifdef _WIN32 1043#ifdef _WIN32
850 return _get_osfhandle (fd) != -1; 1044 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
851#else 1045#else
852 return fcntl (fd, F_GETFD) != -1; 1046 return fcntl (fd, F_GETFD) != -1;
853#endif 1047#endif
854} 1048}
855 1049
… …
873 1067
874 for (fd = anfdmax; fd--; ) 1068 for (fd = anfdmax; fd--; )
875 if (anfds [fd].events) 1069 if (anfds [fd].events)
876 { 1070 {
877 fd_kill (EV_A_ fd); 1071 fd_kill (EV_A_ fd);
878 return; 1072 break;
879 } 1073 }
880} 1074}
881 1075
882/* usually called after fork if backend needs to re-arm all fds from scratch */ 1076/* usually called after fork if backend needs to re-arm all fds from scratch */
883static void noinline 1077static void noinline
… …
888 for (fd = 0; fd < anfdmax; ++fd) 1082 for (fd = 0; fd < anfdmax; ++fd)
889 if (anfds [fd].events) 1083 if (anfds [fd].events)
890 { 1084 {
891 anfds [fd].events = 0; 1085 anfds [fd].events = 0;
892 anfds [fd].emask = 0; 1086 anfds [fd].emask = 0;
893 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1087 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
894 } 1088 }
895} 1089}
896 1090
1091/* used to prepare libev internal fd's */
1092/* this is not fork-safe */
1093inline_speed void
1094fd_intern (int fd)
1095{
1096#ifdef _WIN32
1097 unsigned long arg = 1;
1098 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1099#else
1100 fcntl (fd, F_SETFD, FD_CLOEXEC);
1101 fcntl (fd, F_SETFL, O_NONBLOCK);
1102#endif
1103}
1104
897/*****************************************************************************/ 1105/*****************************************************************************/
898 1106
899/* 1107/*
900 * the heap functions want a real array index. array index 0 uis guaranteed to not 1108 * the heap functions want a real array index. array index 0 is guaranteed to not
901 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1109 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
902 * the branching factor of the d-tree. 1110 * the branching factor of the d-tree.
903 */ 1111 */
904 1112
905/* 1113/*
… …
973 1181
974 for (;;) 1182 for (;;)
975 { 1183 {
976 int c = k << 1; 1184 int c = k << 1;
977 1185
978 if (c > N + HEAP0 - 1) 1186 if (c >= N + HEAP0)
979 break; 1187 break;
980 1188
981 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1189 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
982 ? 1 : 0; 1190 ? 1 : 0;
983 1191
… …
1019 1227
1020/* move an element suitably so it is in a correct place */ 1228/* move an element suitably so it is in a correct place */
1021inline_size void 1229inline_size void
1022adjustheap (ANHE *heap, int N, int k) 1230adjustheap (ANHE *heap, int N, int k)
1023{ 1231{
1024 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1232 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1025 upheap (heap, k); 1233 upheap (heap, k);
1026 else 1234 else
1027 downheap (heap, N, k); 1235 downheap (heap, N, k);
1028} 1236}
1029 1237
… …
1042/*****************************************************************************/ 1250/*****************************************************************************/
1043 1251
1044/* associate signal watchers to a signal signal */ 1252/* associate signal watchers to a signal signal */
1045typedef struct 1253typedef struct
1046{ 1254{
1255 EV_ATOMIC_T pending;
1256#if EV_MULTIPLICITY
1257 EV_P;
1258#endif
1047 WL head; 1259 WL head;
1048 EV_ATOMIC_T gotsig;
1049} ANSIG; 1260} ANSIG;
1050 1261
1051static ANSIG *signals; 1262static ANSIG signals [EV_NSIG - 1];
1052static int signalmax;
1053
1054static EV_ATOMIC_T gotsig;
1055 1263
1056/*****************************************************************************/ 1264/*****************************************************************************/
1057 1265
1058/* used to prepare libev internal fd's */ 1266#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1059/* this is not fork-safe */
1060inline_speed void
1061fd_intern (int fd)
1062{
1063#ifdef _WIN32
1064 unsigned long arg = 1;
1065 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1066#else
1067 fcntl (fd, F_SETFD, FD_CLOEXEC);
1068 fcntl (fd, F_SETFL, O_NONBLOCK);
1069#endif
1070}
1071 1267
1072static void noinline 1268static void noinline
1073evpipe_init (EV_P) 1269evpipe_init (EV_P)
1074{ 1270{
1075 if (!ev_is_active (&pipe_w)) 1271 if (!ev_is_active (&pipe_w))
1076 { 1272 {
1077#if EV_USE_EVENTFD 1273# if EV_USE_EVENTFD
1274 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1275 if (evfd < 0 && errno == EINVAL)
1078 if ((evfd = eventfd (0, 0)) >= 0) 1276 evfd = eventfd (0, 0);
1277
1278 if (evfd >= 0)
1079 { 1279 {
1080 evpipe [0] = -1; 1280 evpipe [0] = -1;
1081 fd_intern (evfd); 1281 fd_intern (evfd); /* doing it twice doesn't hurt */
1082 ev_io_set (&pipe_w, evfd, EV_READ); 1282 ev_io_set (&pipe_w, evfd, EV_READ);
1083 } 1283 }
1084 else 1284 else
1085#endif 1285# endif
1086 { 1286 {
1087 while (pipe (evpipe)) 1287 while (pipe (evpipe))
1088 ev_syserr ("(libev) error creating signal/async pipe"); 1288 ev_syserr ("(libev) error creating signal/async pipe");
1089 1289
1090 fd_intern (evpipe [0]); 1290 fd_intern (evpipe [0]);
… …
1101evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1301evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1102{ 1302{
1103 if (!*flag) 1303 if (!*flag)
1104 { 1304 {
1105 int old_errno = errno; /* save errno because write might clobber it */ 1305 int old_errno = errno; /* save errno because write might clobber it */
1306 char dummy;
1106 1307
1107 *flag = 1; 1308 *flag = 1;
1108 1309
1109#if EV_USE_EVENTFD 1310#if EV_USE_EVENTFD
1110 if (evfd >= 0) 1311 if (evfd >= 0)
… …
1112 uint64_t counter = 1; 1313 uint64_t counter = 1;
1113 write (evfd, &counter, sizeof (uint64_t)); 1314 write (evfd, &counter, sizeof (uint64_t));
1114 } 1315 }
1115 else 1316 else
1116#endif 1317#endif
1318 /* win32 people keep sending patches that change this write() to send() */
1319 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1320 /* so when you think this write should be a send instead, please find out */
1321 /* where your send() is from - it's definitely not the microsoft send, and */
1322 /* tell me. thank you. */
1117 write (evpipe [1], &old_errno, 1); 1323 write (evpipe [1], &dummy, 1);
1118 1324
1119 errno = old_errno; 1325 errno = old_errno;
1120 } 1326 }
1121} 1327}
1122 1328
1123/* called whenever the libev signal pipe */ 1329/* called whenever the libev signal pipe */
1124/* got some events (signal, async) */ 1330/* got some events (signal, async) */
1125static void 1331static void
1126pipecb (EV_P_ ev_io *iow, int revents) 1332pipecb (EV_P_ ev_io *iow, int revents)
1127{ 1333{
1334 int i;
1335
1128#if EV_USE_EVENTFD 1336#if EV_USE_EVENTFD
1129 if (evfd >= 0) 1337 if (evfd >= 0)
1130 { 1338 {
1131 uint64_t counter; 1339 uint64_t counter;
1132 read (evfd, &counter, sizeof (uint64_t)); 1340 read (evfd, &counter, sizeof (uint64_t));
1133 } 1341 }
1134 else 1342 else
1135#endif 1343#endif
1136 { 1344 {
1137 char dummy; 1345 char dummy;
1346 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1138 read (evpipe [0], &dummy, 1); 1347 read (evpipe [0], &dummy, 1);
1139 } 1348 }
1140 1349
1141 if (gotsig && ev_is_default_loop (EV_A)) 1350 if (sig_pending)
1142 { 1351 {
1143 int signum; 1352 sig_pending = 0;
1144 gotsig = 0;
1145 1353
1146 for (signum = signalmax; signum--; ) 1354 for (i = EV_NSIG - 1; i--; )
1147 if (signals [signum].gotsig) 1355 if (expect_false (signals [i].pending))
1148 ev_feed_signal_event (EV_A_ signum + 1); 1356 ev_feed_signal_event (EV_A_ i + 1);
1149 } 1357 }
1150 1358
1151#if EV_ASYNC_ENABLE 1359#if EV_ASYNC_ENABLE
1152 if (gotasync) 1360 if (async_pending)
1153 { 1361 {
1154 int i; 1362 async_pending = 0;
1155 gotasync = 0;
1156 1363
1157 for (i = asynccnt; i--; ) 1364 for (i = asynccnt; i--; )
1158 if (asyncs [i]->sent) 1365 if (asyncs [i]->sent)
1159 { 1366 {
1160 asyncs [i]->sent = 0; 1367 asyncs [i]->sent = 0;
… …
1168 1375
1169static void 1376static void
1170ev_sighandler (int signum) 1377ev_sighandler (int signum)
1171{ 1378{
1172#if EV_MULTIPLICITY 1379#if EV_MULTIPLICITY
1173 struct ev_loop *loop = &default_loop_struct; 1380 EV_P = signals [signum - 1].loop;
1174#endif 1381#endif
1175 1382
1176#if _WIN32 1383#ifdef _WIN32
1177 signal (signum, ev_sighandler); 1384 signal (signum, ev_sighandler);
1178#endif 1385#endif
1179 1386
1180 signals [signum - 1].gotsig = 1; 1387 signals [signum - 1].pending = 1;
1181 evpipe_write (EV_A_ &gotsig); 1388 evpipe_write (EV_A_ &sig_pending);
1182} 1389}
1183 1390
1184void noinline 1391void noinline
1185ev_feed_signal_event (EV_P_ int signum) 1392ev_feed_signal_event (EV_P_ int signum)
1186{ 1393{
1187 WL w; 1394 WL w;
1188 1395
1396 if (expect_false (signum <= 0 || signum > EV_NSIG))
1397 return;
1398
1399 --signum;
1400
1189#if EV_MULTIPLICITY 1401#if EV_MULTIPLICITY
1190 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1402 /* it is permissible to try to feed a signal to the wrong loop */
1191#endif 1403 /* or, likely more useful, feeding a signal nobody is waiting for */
1192 1404
1193 --signum; 1405 if (expect_false (signals [signum].loop != EV_A))
1194
1195 if (signum < 0 || signum >= signalmax)
1196 return; 1406 return;
1407#endif
1197 1408
1198 signals [signum].gotsig = 0; 1409 signals [signum].pending = 0;
1199 1410
1200 for (w = signals [signum].head; w; w = w->next) 1411 for (w = signals [signum].head; w; w = w->next)
1201 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1412 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1202} 1413}
1203 1414
1415#if EV_USE_SIGNALFD
1416static void
1417sigfdcb (EV_P_ ev_io *iow, int revents)
1418{
1419 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1420
1421 for (;;)
1422 {
1423 ssize_t res = read (sigfd, si, sizeof (si));
1424
1425 /* not ISO-C, as res might be -1, but works with SuS */
1426 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1427 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1428
1429 if (res < (ssize_t)sizeof (si))
1430 break;
1431 }
1432}
1433#endif
1434
1435#endif
1436
1204/*****************************************************************************/ 1437/*****************************************************************************/
1205 1438
1439#if EV_CHILD_ENABLE
1206static WL childs [EV_PID_HASHSIZE]; 1440static WL childs [EV_PID_HASHSIZE];
1207
1208#ifndef _WIN32
1209 1441
1210static ev_signal childev; 1442static ev_signal childev;
1211 1443
1212#ifndef WIFCONTINUED 1444#ifndef WIFCONTINUED
1213# define WIFCONTINUED(status) 0 1445# define WIFCONTINUED(status) 0
… …
1218child_reap (EV_P_ int chain, int pid, int status) 1450child_reap (EV_P_ int chain, int pid, int status)
1219{ 1451{
1220 ev_child *w; 1452 ev_child *w;
1221 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1453 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1222 1454
1223 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1455 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1224 { 1456 {
1225 if ((w->pid == pid || !w->pid) 1457 if ((w->pid == pid || !w->pid)
1226 && (!traced || (w->flags & 1))) 1458 && (!traced || (w->flags & 1)))
1227 { 1459 {
1228 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1460 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1253 /* make sure we are called again until all children have been reaped */ 1485 /* make sure we are called again until all children have been reaped */
1254 /* we need to do it this way so that the callback gets called before we continue */ 1486 /* we need to do it this way so that the callback gets called before we continue */
1255 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1487 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1256 1488
1257 child_reap (EV_A_ pid, pid, status); 1489 child_reap (EV_A_ pid, pid, status);
1258 if (EV_PID_HASHSIZE > 1) 1490 if ((EV_PID_HASHSIZE) > 1)
1259 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1491 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1260} 1492}
1261 1493
1262#endif 1494#endif
1263 1495
1264/*****************************************************************************/ 1496/*****************************************************************************/
1265 1497
1498#if EV_USE_IOCP
1499# include "ev_iocp.c"
1500#endif
1266#if EV_USE_PORT 1501#if EV_USE_PORT
1267# include "ev_port.c" 1502# include "ev_port.c"
1268#endif 1503#endif
1269#if EV_USE_KQUEUE 1504#if EV_USE_KQUEUE
1270# include "ev_kqueue.c" 1505# include "ev_kqueue.c"
… …
1330#ifdef __APPLE__ 1565#ifdef __APPLE__
1331 /* only select works correctly on that "unix-certified" platform */ 1566 /* only select works correctly on that "unix-certified" platform */
1332 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1567 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1333 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1568 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1334#endif 1569#endif
1570#ifdef __FreeBSD__
1571 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1572#endif
1335 1573
1336 return flags; 1574 return flags;
1337} 1575}
1338 1576
1339unsigned int 1577unsigned int
1340ev_embeddable_backends (void) 1578ev_embeddable_backends (void)
1341{ 1579{
1342 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1580 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1343 1581
1344 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1582 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1345 /* please fix it and tell me how to detect the fix */ 1583 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1346 flags &= ~EVBACKEND_EPOLL; 1584 flags &= ~EVBACKEND_EPOLL;
1347 1585
1348 return flags; 1586 return flags;
1349} 1587}
1350 1588
1351unsigned int 1589unsigned int
1352ev_backend (EV_P) 1590ev_backend (EV_P)
1353{ 1591{
1354 return backend; 1592 return backend;
1355} 1593}
1356 1594
1595#if EV_FEATURE_API
1357unsigned int 1596unsigned int
1358ev_loop_count (EV_P) 1597ev_iteration (EV_P)
1359{ 1598{
1360 return loop_count; 1599 return loop_count;
1361} 1600}
1362 1601
1602unsigned int
1603ev_depth (EV_P)
1604{
1605 return loop_depth;
1606}
1607
1363void 1608void
1364ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1609ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1365{ 1610{
1366 io_blocktime = interval; 1611 io_blocktime = interval;
1367} 1612}
… …
1369void 1614void
1370ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1615ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1371{ 1616{
1372 timeout_blocktime = interval; 1617 timeout_blocktime = interval;
1373} 1618}
1619
1620void
1621ev_set_userdata (EV_P_ void *data)
1622{
1623 userdata = data;
1624}
1625
1626void *
1627ev_userdata (EV_P)
1628{
1629 return userdata;
1630}
1631
1632void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1633{
1634 invoke_cb = invoke_pending_cb;
1635}
1636
1637void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1638{
1639 release_cb = release;
1640 acquire_cb = acquire;
1641}
1642#endif
1374 1643
1375/* initialise a loop structure, must be zero-initialised */ 1644/* initialise a loop structure, must be zero-initialised */
1376static void noinline 1645static void noinline
1377loop_init (EV_P_ unsigned int flags) 1646loop_init (EV_P_ unsigned int flags)
1378{ 1647{
… …
1396 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1665 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1397 have_monotonic = 1; 1666 have_monotonic = 1;
1398 } 1667 }
1399#endif 1668#endif
1400 1669
1670 /* pid check not overridable via env */
1671#ifndef _WIN32
1672 if (flags & EVFLAG_FORKCHECK)
1673 curpid = getpid ();
1674#endif
1675
1676 if (!(flags & EVFLAG_NOENV)
1677 && !enable_secure ()
1678 && getenv ("LIBEV_FLAGS"))
1679 flags = atoi (getenv ("LIBEV_FLAGS"));
1680
1401 ev_rt_now = ev_time (); 1681 ev_rt_now = ev_time ();
1402 mn_now = get_clock (); 1682 mn_now = get_clock ();
1403 now_floor = mn_now; 1683 now_floor = mn_now;
1404 rtmn_diff = ev_rt_now - mn_now; 1684 rtmn_diff = ev_rt_now - mn_now;
1685#if EV_FEATURE_API
1686 invoke_cb = ev_invoke_pending;
1687#endif
1405 1688
1406 io_blocktime = 0.; 1689 io_blocktime = 0.;
1407 timeout_blocktime = 0.; 1690 timeout_blocktime = 0.;
1408 backend = 0; 1691 backend = 0;
1409 backend_fd = -1; 1692 backend_fd = -1;
1410 gotasync = 0; 1693 sig_pending = 0;
1694#if EV_ASYNC_ENABLE
1695 async_pending = 0;
1696#endif
1411#if EV_USE_INOTIFY 1697#if EV_USE_INOTIFY
1412 fs_fd = -2; 1698 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1413#endif 1699#endif
1414 1700#if EV_USE_SIGNALFD
1415 /* pid check not overridable via env */ 1701 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1416#ifndef _WIN32
1417 if (flags & EVFLAG_FORKCHECK)
1418 curpid = getpid ();
1419#endif 1702#endif
1420
1421 if (!(flags & EVFLAG_NOENV)
1422 && !enable_secure ()
1423 && getenv ("LIBEV_FLAGS"))
1424 flags = atoi (getenv ("LIBEV_FLAGS"));
1425 1703
1426 if (!(flags & 0x0000ffffU)) 1704 if (!(flags & 0x0000ffffU))
1427 flags |= ev_recommended_backends (); 1705 flags |= ev_recommended_backends ();
1428 1706
1707#if EV_USE_IOCP
1708 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1709#endif
1429#if EV_USE_PORT 1710#if EV_USE_PORT
1430 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1711 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1431#endif 1712#endif
1432#if EV_USE_KQUEUE 1713#if EV_USE_KQUEUE
1433 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1714 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1442 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1723 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1443#endif 1724#endif
1444 1725
1445 ev_prepare_init (&pending_w, pendingcb); 1726 ev_prepare_init (&pending_w, pendingcb);
1446 1727
1728#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1447 ev_init (&pipe_w, pipecb); 1729 ev_init (&pipe_w, pipecb);
1448 ev_set_priority (&pipe_w, EV_MAXPRI); 1730 ev_set_priority (&pipe_w, EV_MAXPRI);
1731#endif
1449 } 1732 }
1450} 1733}
1451 1734
1452/* free up a loop structure */ 1735/* free up a loop structure */
1453static void noinline 1736void
1454loop_destroy (EV_P) 1737ev_loop_destroy (EV_P)
1455{ 1738{
1456 int i; 1739 int i;
1457 1740
1741#if EV_MULTIPLICITY
1742 /* mimic free (0) */
1743 if (!EV_A)
1744 return;
1745#endif
1746
1747#if EV_CLEANUP_ENABLE
1748 /* queue cleanup watchers (and execute them) */
1749 if (expect_false (cleanupcnt))
1750 {
1751 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1752 EV_INVOKE_PENDING;
1753 }
1754#endif
1755
1756#if EV_CHILD_ENABLE
1757 if (ev_is_active (&childev))
1758 {
1759 ev_ref (EV_A); /* child watcher */
1760 ev_signal_stop (EV_A_ &childev);
1761 }
1762#endif
1763
1458 if (ev_is_active (&pipe_w)) 1764 if (ev_is_active (&pipe_w))
1459 { 1765 {
1460 ev_ref (EV_A); /* signal watcher */ 1766 /*ev_ref (EV_A);*/
1461 ev_io_stop (EV_A_ &pipe_w); 1767 /*ev_io_stop (EV_A_ &pipe_w);*/
1462 1768
1463#if EV_USE_EVENTFD 1769#if EV_USE_EVENTFD
1464 if (evfd >= 0) 1770 if (evfd >= 0)
1465 close (evfd); 1771 close (evfd);
1466#endif 1772#endif
1467 1773
1468 if (evpipe [0] >= 0) 1774 if (evpipe [0] >= 0)
1469 { 1775 {
1470 close (evpipe [0]); 1776 EV_WIN32_CLOSE_FD (evpipe [0]);
1471 close (evpipe [1]); 1777 EV_WIN32_CLOSE_FD (evpipe [1]);
1472 } 1778 }
1473 } 1779 }
1780
1781#if EV_USE_SIGNALFD
1782 if (ev_is_active (&sigfd_w))
1783 close (sigfd);
1784#endif
1474 1785
1475#if EV_USE_INOTIFY 1786#if EV_USE_INOTIFY
1476 if (fs_fd >= 0) 1787 if (fs_fd >= 0)
1477 close (fs_fd); 1788 close (fs_fd);
1478#endif 1789#endif
1479 1790
1480 if (backend_fd >= 0) 1791 if (backend_fd >= 0)
1481 close (backend_fd); 1792 close (backend_fd);
1482 1793
1794#if EV_USE_IOCP
1795 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1796#endif
1483#if EV_USE_PORT 1797#if EV_USE_PORT
1484 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1798 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1485#endif 1799#endif
1486#if EV_USE_KQUEUE 1800#if EV_USE_KQUEUE
1487 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1801 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1502#if EV_IDLE_ENABLE 1816#if EV_IDLE_ENABLE
1503 array_free (idle, [i]); 1817 array_free (idle, [i]);
1504#endif 1818#endif
1505 } 1819 }
1506 1820
1507 ev_free (anfds); anfdmax = 0; 1821 ev_free (anfds); anfds = 0; anfdmax = 0;
1508 1822
1509 /* have to use the microsoft-never-gets-it-right macro */ 1823 /* have to use the microsoft-never-gets-it-right macro */
1510 array_free (rfeed, EMPTY); 1824 array_free (rfeed, EMPTY);
1511 array_free (fdchange, EMPTY); 1825 array_free (fdchange, EMPTY);
1512 array_free (timer, EMPTY); 1826 array_free (timer, EMPTY);
… …
1514 array_free (periodic, EMPTY); 1828 array_free (periodic, EMPTY);
1515#endif 1829#endif
1516#if EV_FORK_ENABLE 1830#if EV_FORK_ENABLE
1517 array_free (fork, EMPTY); 1831 array_free (fork, EMPTY);
1518#endif 1832#endif
1833#if EV_CLEANUP_ENABLE
1834 array_free (cleanup, EMPTY);
1835#endif
1519 array_free (prepare, EMPTY); 1836 array_free (prepare, EMPTY);
1520 array_free (check, EMPTY); 1837 array_free (check, EMPTY);
1521#if EV_ASYNC_ENABLE 1838#if EV_ASYNC_ENABLE
1522 array_free (async, EMPTY); 1839 array_free (async, EMPTY);
1523#endif 1840#endif
1524 1841
1525 backend = 0; 1842 backend = 0;
1843
1844#if EV_MULTIPLICITY
1845 if (ev_is_default_loop (EV_A))
1846#endif
1847 ev_default_loop_ptr = 0;
1848#if EV_MULTIPLICITY
1849 else
1850 ev_free (EV_A);
1851#endif
1526} 1852}
1527 1853
1528#if EV_USE_INOTIFY 1854#if EV_USE_INOTIFY
1529inline_size void infy_fork (EV_P); 1855inline_size void infy_fork (EV_P);
1530#endif 1856#endif
… …
1547 1873
1548 if (ev_is_active (&pipe_w)) 1874 if (ev_is_active (&pipe_w))
1549 { 1875 {
1550 /* this "locks" the handlers against writing to the pipe */ 1876 /* this "locks" the handlers against writing to the pipe */
1551 /* while we modify the fd vars */ 1877 /* while we modify the fd vars */
1552 gotsig = 1; 1878 sig_pending = 1;
1553#if EV_ASYNC_ENABLE 1879#if EV_ASYNC_ENABLE
1554 gotasync = 1; 1880 async_pending = 1;
1555#endif 1881#endif
1556 1882
1557 ev_ref (EV_A); 1883 ev_ref (EV_A);
1558 ev_io_stop (EV_A_ &pipe_w); 1884 ev_io_stop (EV_A_ &pipe_w);
1559 1885
… …
1562 close (evfd); 1888 close (evfd);
1563#endif 1889#endif
1564 1890
1565 if (evpipe [0] >= 0) 1891 if (evpipe [0] >= 0)
1566 { 1892 {
1567 close (evpipe [0]); 1893 EV_WIN32_CLOSE_FD (evpipe [0]);
1568 close (evpipe [1]); 1894 EV_WIN32_CLOSE_FD (evpipe [1]);
1569 } 1895 }
1570 1896
1897#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1571 evpipe_init (EV_A); 1898 evpipe_init (EV_A);
1572 /* now iterate over everything, in case we missed something */ 1899 /* now iterate over everything, in case we missed something */
1573 pipecb (EV_A_ &pipe_w, EV_READ); 1900 pipecb (EV_A_ &pipe_w, EV_READ);
1901#endif
1574 } 1902 }
1575 1903
1576 postfork = 0; 1904 postfork = 0;
1577} 1905}
1578 1906
1579#if EV_MULTIPLICITY 1907#if EV_MULTIPLICITY
1580 1908
1581struct ev_loop * 1909struct ev_loop *
1582ev_loop_new (unsigned int flags) 1910ev_loop_new (unsigned int flags)
1583{ 1911{
1584 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1912 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1585 1913
1586 memset (loop, 0, sizeof (struct ev_loop)); 1914 memset (EV_A, 0, sizeof (struct ev_loop));
1587
1588 loop_init (EV_A_ flags); 1915 loop_init (EV_A_ flags);
1589 1916
1590 if (ev_backend (EV_A)) 1917 if (ev_backend (EV_A))
1591 return loop; 1918 return EV_A;
1592 1919
1920 ev_free (EV_A);
1593 return 0; 1921 return 0;
1594} 1922}
1595 1923
1596void 1924#endif /* multiplicity */
1597ev_loop_destroy (EV_P)
1598{
1599 loop_destroy (EV_A);
1600 ev_free (loop);
1601}
1602
1603void
1604ev_loop_fork (EV_P)
1605{
1606 postfork = 1; /* must be in line with ev_default_fork */
1607}
1608 1925
1609#if EV_VERIFY 1926#if EV_VERIFY
1610static void noinline 1927static void noinline
1611verify_watcher (EV_P_ W w) 1928verify_watcher (EV_P_ W w)
1612{ 1929{
… …
1640 verify_watcher (EV_A_ ws [cnt]); 1957 verify_watcher (EV_A_ ws [cnt]);
1641 } 1958 }
1642} 1959}
1643#endif 1960#endif
1644 1961
1962#if EV_FEATURE_API
1645void 1963void
1646ev_loop_verify (EV_P) 1964ev_verify (EV_P)
1647{ 1965{
1648#if EV_VERIFY 1966#if EV_VERIFY
1649 int i; 1967 int i;
1650 WL w; 1968 WL w;
1651 1969
… …
1685#if EV_FORK_ENABLE 2003#if EV_FORK_ENABLE
1686 assert (forkmax >= forkcnt); 2004 assert (forkmax >= forkcnt);
1687 array_verify (EV_A_ (W *)forks, forkcnt); 2005 array_verify (EV_A_ (W *)forks, forkcnt);
1688#endif 2006#endif
1689 2007
2008#if EV_CLEANUP_ENABLE
2009 assert (cleanupmax >= cleanupcnt);
2010 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2011#endif
2012
1690#if EV_ASYNC_ENABLE 2013#if EV_ASYNC_ENABLE
1691 assert (asyncmax >= asynccnt); 2014 assert (asyncmax >= asynccnt);
1692 array_verify (EV_A_ (W *)asyncs, asynccnt); 2015 array_verify (EV_A_ (W *)asyncs, asynccnt);
1693#endif 2016#endif
1694 2017
2018#if EV_PREPARE_ENABLE
1695 assert (preparemax >= preparecnt); 2019 assert (preparemax >= preparecnt);
1696 array_verify (EV_A_ (W *)prepares, preparecnt); 2020 array_verify (EV_A_ (W *)prepares, preparecnt);
2021#endif
1697 2022
2023#if EV_CHECK_ENABLE
1698 assert (checkmax >= checkcnt); 2024 assert (checkmax >= checkcnt);
1699 array_verify (EV_A_ (W *)checks, checkcnt); 2025 array_verify (EV_A_ (W *)checks, checkcnt);
2026#endif
1700 2027
1701# if 0 2028# if 0
2029#if EV_CHILD_ENABLE
1702 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2030 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1703 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2031 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2032#endif
1704# endif 2033# endif
1705#endif 2034#endif
1706} 2035}
1707 2036#endif
1708#endif /* multiplicity */
1709 2037
1710#if EV_MULTIPLICITY 2038#if EV_MULTIPLICITY
1711struct ev_loop * 2039struct ev_loop *
1712ev_default_loop_init (unsigned int flags)
1713#else 2040#else
1714int 2041int
2042#endif
1715ev_default_loop (unsigned int flags) 2043ev_default_loop (unsigned int flags)
1716#endif
1717{ 2044{
1718 if (!ev_default_loop_ptr) 2045 if (!ev_default_loop_ptr)
1719 { 2046 {
1720#if EV_MULTIPLICITY 2047#if EV_MULTIPLICITY
1721 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2048 EV_P = ev_default_loop_ptr = &default_loop_struct;
1722#else 2049#else
1723 ev_default_loop_ptr = 1; 2050 ev_default_loop_ptr = 1;
1724#endif 2051#endif
1725 2052
1726 loop_init (EV_A_ flags); 2053 loop_init (EV_A_ flags);
1727 2054
1728 if (ev_backend (EV_A)) 2055 if (ev_backend (EV_A))
1729 { 2056 {
1730#ifndef _WIN32 2057#if EV_CHILD_ENABLE
1731 ev_signal_init (&childev, childcb, SIGCHLD); 2058 ev_signal_init (&childev, childcb, SIGCHLD);
1732 ev_set_priority (&childev, EV_MAXPRI); 2059 ev_set_priority (&childev, EV_MAXPRI);
1733 ev_signal_start (EV_A_ &childev); 2060 ev_signal_start (EV_A_ &childev);
1734 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2061 ev_unref (EV_A); /* child watcher should not keep loop alive */
1735#endif 2062#endif
… …
1740 2067
1741 return ev_default_loop_ptr; 2068 return ev_default_loop_ptr;
1742} 2069}
1743 2070
1744void 2071void
1745ev_default_destroy (void) 2072ev_loop_fork (EV_P)
1746{ 2073{
1747#if EV_MULTIPLICITY
1748 struct ev_loop *loop = ev_default_loop_ptr;
1749#endif
1750
1751 ev_default_loop_ptr = 0;
1752
1753#ifndef _WIN32
1754 ev_ref (EV_A); /* child watcher */
1755 ev_signal_stop (EV_A_ &childev);
1756#endif
1757
1758 loop_destroy (EV_A);
1759}
1760
1761void
1762ev_default_fork (void)
1763{
1764#if EV_MULTIPLICITY
1765 struct ev_loop *loop = ev_default_loop_ptr;
1766#endif
1767
1768 postfork = 1; /* must be in line with ev_loop_fork */ 2074 postfork = 1; /* must be in line with ev_default_fork */
1769} 2075}
1770 2076
1771/*****************************************************************************/ 2077/*****************************************************************************/
1772 2078
1773void 2079void
1774ev_invoke (EV_P_ void *w, int revents) 2080ev_invoke (EV_P_ void *w, int revents)
1775{ 2081{
1776 EV_CB_INVOKE ((W)w, revents); 2082 EV_CB_INVOKE ((W)w, revents);
1777} 2083}
1778 2084
1779inline_speed void 2085unsigned int
1780call_pending (EV_P) 2086ev_pending_count (EV_P)
2087{
2088 int pri;
2089 unsigned int count = 0;
2090
2091 for (pri = NUMPRI; pri--; )
2092 count += pendingcnt [pri];
2093
2094 return count;
2095}
2096
2097void noinline
2098ev_invoke_pending (EV_P)
1781{ 2099{
1782 int pri; 2100 int pri;
1783 2101
1784 for (pri = NUMPRI; pri--; ) 2102 for (pri = NUMPRI; pri--; )
1785 while (pendingcnt [pri]) 2103 while (pendingcnt [pri])
… …
1852 EV_FREQUENT_CHECK; 2170 EV_FREQUENT_CHECK;
1853 feed_reverse (EV_A_ (W)w); 2171 feed_reverse (EV_A_ (W)w);
1854 } 2172 }
1855 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2173 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1856 2174
1857 feed_reverse_done (EV_A_ EV_TIMEOUT); 2175 feed_reverse_done (EV_A_ EV_TIMER);
1858 } 2176 }
1859} 2177}
1860 2178
1861#if EV_PERIODIC_ENABLE 2179#if EV_PERIODIC_ENABLE
1862/* make periodics pending */ 2180/* make periodics pending */
… …
1915 feed_reverse_done (EV_A_ EV_PERIODIC); 2233 feed_reverse_done (EV_A_ EV_PERIODIC);
1916 } 2234 }
1917} 2235}
1918 2236
1919/* simply recalculate all periodics */ 2237/* simply recalculate all periodics */
1920/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2238/* TODO: maybe ensure that at least one event happens when jumping forward? */
1921static void noinline 2239static void noinline
1922periodics_reschedule (EV_P) 2240periodics_reschedule (EV_P)
1923{ 2241{
1924 int i; 2242 int i;
1925 2243
… …
1953 ANHE_at_cache (*he); 2271 ANHE_at_cache (*he);
1954 } 2272 }
1955} 2273}
1956 2274
1957/* fetch new monotonic and realtime times from the kernel */ 2275/* fetch new monotonic and realtime times from the kernel */
1958/* also detetc if there was a timejump, and act accordingly */ 2276/* also detect if there was a timejump, and act accordingly */
1959inline_speed void 2277inline_speed void
1960time_update (EV_P_ ev_tstamp max_block) 2278time_update (EV_P_ ev_tstamp max_block)
1961{ 2279{
1962#if EV_USE_MONOTONIC 2280#if EV_USE_MONOTONIC
1963 if (expect_true (have_monotonic)) 2281 if (expect_true (have_monotonic))
… …
2020 2338
2021 mn_now = ev_rt_now; 2339 mn_now = ev_rt_now;
2022 } 2340 }
2023} 2341}
2024 2342
2025static int loop_done;
2026
2027void 2343void
2028ev_loop (EV_P_ int flags) 2344ev_run (EV_P_ int flags)
2029{ 2345{
2346#if EV_FEATURE_API
2347 ++loop_depth;
2348#endif
2349
2350 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2351
2030 loop_done = EVUNLOOP_CANCEL; 2352 loop_done = EVBREAK_CANCEL;
2031 2353
2032 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2354 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2033 2355
2034 do 2356 do
2035 { 2357 {
2036#if EV_VERIFY >= 2 2358#if EV_VERIFY >= 2
2037 ev_loop_verify (EV_A); 2359 ev_verify (EV_A);
2038#endif 2360#endif
2039 2361
2040#ifndef _WIN32 2362#ifndef _WIN32
2041 if (expect_false (curpid)) /* penalise the forking check even more */ 2363 if (expect_false (curpid)) /* penalise the forking check even more */
2042 if (expect_false (getpid () != curpid)) 2364 if (expect_false (getpid () != curpid))
… …
2050 /* we might have forked, so queue fork handlers */ 2372 /* we might have forked, so queue fork handlers */
2051 if (expect_false (postfork)) 2373 if (expect_false (postfork))
2052 if (forkcnt) 2374 if (forkcnt)
2053 { 2375 {
2054 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2376 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2055 call_pending (EV_A); 2377 EV_INVOKE_PENDING;
2056 } 2378 }
2057#endif 2379#endif
2058 2380
2381#if EV_PREPARE_ENABLE
2059 /* queue prepare watchers (and execute them) */ 2382 /* queue prepare watchers (and execute them) */
2060 if (expect_false (preparecnt)) 2383 if (expect_false (preparecnt))
2061 { 2384 {
2062 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2385 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2063 call_pending (EV_A); 2386 EV_INVOKE_PENDING;
2064 } 2387 }
2388#endif
2389
2390 if (expect_false (loop_done))
2391 break;
2065 2392
2066 /* we might have forked, so reify kernel state if necessary */ 2393 /* we might have forked, so reify kernel state if necessary */
2067 if (expect_false (postfork)) 2394 if (expect_false (postfork))
2068 loop_fork (EV_A); 2395 loop_fork (EV_A);
2069 2396
… …
2073 /* calculate blocking time */ 2400 /* calculate blocking time */
2074 { 2401 {
2075 ev_tstamp waittime = 0.; 2402 ev_tstamp waittime = 0.;
2076 ev_tstamp sleeptime = 0.; 2403 ev_tstamp sleeptime = 0.;
2077 2404
2405 /* remember old timestamp for io_blocktime calculation */
2406 ev_tstamp prev_mn_now = mn_now;
2407
2408 /* update time to cancel out callback processing overhead */
2409 time_update (EV_A_ 1e100);
2410
2078 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2411 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2079 { 2412 {
2080 /* remember old timestamp for io_blocktime calculation */
2081 ev_tstamp prev_mn_now = mn_now;
2082
2083 /* update time to cancel out callback processing overhead */
2084 time_update (EV_A_ 1e100);
2085
2086 waittime = MAX_BLOCKTIME; 2413 waittime = MAX_BLOCKTIME;
2087 2414
2088 if (timercnt) 2415 if (timercnt)
2089 { 2416 {
2090 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2417 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
2117 waittime -= sleeptime; 2444 waittime -= sleeptime;
2118 } 2445 }
2119 } 2446 }
2120 } 2447 }
2121 2448
2449#if EV_FEATURE_API
2122 ++loop_count; 2450 ++loop_count;
2451#endif
2452 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2123 backend_poll (EV_A_ waittime); 2453 backend_poll (EV_A_ waittime);
2454 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2124 2455
2125 /* update ev_rt_now, do magic */ 2456 /* update ev_rt_now, do magic */
2126 time_update (EV_A_ waittime + sleeptime); 2457 time_update (EV_A_ waittime + sleeptime);
2127 } 2458 }
2128 2459
… …
2135#if EV_IDLE_ENABLE 2466#if EV_IDLE_ENABLE
2136 /* queue idle watchers unless other events are pending */ 2467 /* queue idle watchers unless other events are pending */
2137 idle_reify (EV_A); 2468 idle_reify (EV_A);
2138#endif 2469#endif
2139 2470
2471#if EV_CHECK_ENABLE
2140 /* queue check watchers, to be executed first */ 2472 /* queue check watchers, to be executed first */
2141 if (expect_false (checkcnt)) 2473 if (expect_false (checkcnt))
2142 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2474 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2475#endif
2143 2476
2144 call_pending (EV_A); 2477 EV_INVOKE_PENDING;
2145 } 2478 }
2146 while (expect_true ( 2479 while (expect_true (
2147 activecnt 2480 activecnt
2148 && !loop_done 2481 && !loop_done
2149 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2482 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2150 )); 2483 ));
2151 2484
2152 if (loop_done == EVUNLOOP_ONE) 2485 if (loop_done == EVBREAK_ONE)
2153 loop_done = EVUNLOOP_CANCEL; 2486 loop_done = EVBREAK_CANCEL;
2154}
2155 2487
2488#if EV_FEATURE_API
2489 --loop_depth;
2490#endif
2491}
2492
2156void 2493void
2157ev_unloop (EV_P_ int how) 2494ev_break (EV_P_ int how)
2158{ 2495{
2159 loop_done = how; 2496 loop_done = how;
2160} 2497}
2161 2498
2162void 2499void
… …
2209inline_size void 2546inline_size void
2210wlist_del (WL *head, WL elem) 2547wlist_del (WL *head, WL elem)
2211{ 2548{
2212 while (*head) 2549 while (*head)
2213 { 2550 {
2214 if (*head == elem) 2551 if (expect_true (*head == elem))
2215 { 2552 {
2216 *head = elem->next; 2553 *head = elem->next;
2217 return; 2554 break;
2218 } 2555 }
2219 2556
2220 head = &(*head)->next; 2557 head = &(*head)->next;
2221 } 2558 }
2222} 2559}
… …
2250} 2587}
2251 2588
2252inline_size void 2589inline_size void
2253pri_adjust (EV_P_ W w) 2590pri_adjust (EV_P_ W w)
2254{ 2591{
2255 int pri = w->priority; 2592 int pri = ev_priority (w);
2256 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2593 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2257 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2594 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2258 w->priority = pri; 2595 ev_set_priority (w, pri);
2259} 2596}
2260 2597
2261inline_speed void 2598inline_speed void
2262ev_start (EV_P_ W w, int active) 2599ev_start (EV_P_ W w, int active)
2263{ 2600{
… …
2282 2619
2283 if (expect_false (ev_is_active (w))) 2620 if (expect_false (ev_is_active (w)))
2284 return; 2621 return;
2285 2622
2286 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2623 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2287 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2624 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2288 2625
2289 EV_FREQUENT_CHECK; 2626 EV_FREQUENT_CHECK;
2290 2627
2291 ev_start (EV_A_ (W)w, 1); 2628 ev_start (EV_A_ (W)w, 1);
2292 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2629 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2293 wlist_add (&anfds[fd].head, (WL)w); 2630 wlist_add (&anfds[fd].head, (WL)w);
2294 2631
2295 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 2632 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2296 w->events &= ~EV__IOFDSET; 2633 w->events &= ~EV__IOFDSET;
2297 2634
2298 EV_FREQUENT_CHECK; 2635 EV_FREQUENT_CHECK;
2299} 2636}
2300 2637
… …
2310 EV_FREQUENT_CHECK; 2647 EV_FREQUENT_CHECK;
2311 2648
2312 wlist_del (&anfds[w->fd].head, (WL)w); 2649 wlist_del (&anfds[w->fd].head, (WL)w);
2313 ev_stop (EV_A_ (W)w); 2650 ev_stop (EV_A_ (W)w);
2314 2651
2315 fd_change (EV_A_ w->fd, 1); 2652 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2316 2653
2317 EV_FREQUENT_CHECK; 2654 EV_FREQUENT_CHECK;
2318} 2655}
2319 2656
2320void noinline 2657void noinline
… …
2362 timers [active] = timers [timercnt + HEAP0]; 2699 timers [active] = timers [timercnt + HEAP0];
2363 adjustheap (timers, timercnt, active); 2700 adjustheap (timers, timercnt, active);
2364 } 2701 }
2365 } 2702 }
2366 2703
2367 EV_FREQUENT_CHECK;
2368
2369 ev_at (w) -= mn_now; 2704 ev_at (w) -= mn_now;
2370 2705
2371 ev_stop (EV_A_ (W)w); 2706 ev_stop (EV_A_ (W)w);
2707
2708 EV_FREQUENT_CHECK;
2372} 2709}
2373 2710
2374void noinline 2711void noinline
2375ev_timer_again (EV_P_ ev_timer *w) 2712ev_timer_again (EV_P_ ev_timer *w)
2376{ 2713{
… …
2394 } 2731 }
2395 2732
2396 EV_FREQUENT_CHECK; 2733 EV_FREQUENT_CHECK;
2397} 2734}
2398 2735
2736ev_tstamp
2737ev_timer_remaining (EV_P_ ev_timer *w)
2738{
2739 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2740}
2741
2399#if EV_PERIODIC_ENABLE 2742#if EV_PERIODIC_ENABLE
2400void noinline 2743void noinline
2401ev_periodic_start (EV_P_ ev_periodic *w) 2744ev_periodic_start (EV_P_ ev_periodic *w)
2402{ 2745{
2403 if (expect_false (ev_is_active (w))) 2746 if (expect_false (ev_is_active (w)))
… …
2449 periodics [active] = periodics [periodiccnt + HEAP0]; 2792 periodics [active] = periodics [periodiccnt + HEAP0];
2450 adjustheap (periodics, periodiccnt, active); 2793 adjustheap (periodics, periodiccnt, active);
2451 } 2794 }
2452 } 2795 }
2453 2796
2454 EV_FREQUENT_CHECK;
2455
2456 ev_stop (EV_A_ (W)w); 2797 ev_stop (EV_A_ (W)w);
2798
2799 EV_FREQUENT_CHECK;
2457} 2800}
2458 2801
2459void noinline 2802void noinline
2460ev_periodic_again (EV_P_ ev_periodic *w) 2803ev_periodic_again (EV_P_ ev_periodic *w)
2461{ 2804{
… …
2467 2810
2468#ifndef SA_RESTART 2811#ifndef SA_RESTART
2469# define SA_RESTART 0 2812# define SA_RESTART 0
2470#endif 2813#endif
2471 2814
2815#if EV_SIGNAL_ENABLE
2816
2472void noinline 2817void noinline
2473ev_signal_start (EV_P_ ev_signal *w) 2818ev_signal_start (EV_P_ ev_signal *w)
2474{ 2819{
2475#if EV_MULTIPLICITY
2476 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2477#endif
2478 if (expect_false (ev_is_active (w))) 2820 if (expect_false (ev_is_active (w)))
2479 return; 2821 return;
2480 2822
2481 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 2823 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2482 2824
2483 evpipe_init (EV_A); 2825#if EV_MULTIPLICITY
2826 assert (("libev: a signal must not be attached to two different loops",
2827 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2484 2828
2485 EV_FREQUENT_CHECK; 2829 signals [w->signum - 1].loop = EV_A;
2830#endif
2486 2831
2832 EV_FREQUENT_CHECK;
2833
2834#if EV_USE_SIGNALFD
2835 if (sigfd == -2)
2487 { 2836 {
2488#ifndef _WIN32 2837 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2489 sigset_t full, prev; 2838 if (sigfd < 0 && errno == EINVAL)
2490 sigfillset (&full); 2839 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2491 sigprocmask (SIG_SETMASK, &full, &prev);
2492#endif
2493 2840
2494 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 2841 if (sigfd >= 0)
2842 {
2843 fd_intern (sigfd); /* doing it twice will not hurt */
2495 2844
2496#ifndef _WIN32 2845 sigemptyset (&sigfd_set);
2497 sigprocmask (SIG_SETMASK, &prev, 0); 2846
2498#endif 2847 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2848 ev_set_priority (&sigfd_w, EV_MAXPRI);
2849 ev_io_start (EV_A_ &sigfd_w);
2850 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2851 }
2499 } 2852 }
2853
2854 if (sigfd >= 0)
2855 {
2856 /* TODO: check .head */
2857 sigaddset (&sigfd_set, w->signum);
2858 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2859
2860 signalfd (sigfd, &sigfd_set, 0);
2861 }
2862#endif
2500 2863
2501 ev_start (EV_A_ (W)w, 1); 2864 ev_start (EV_A_ (W)w, 1);
2502 wlist_add (&signals [w->signum - 1].head, (WL)w); 2865 wlist_add (&signals [w->signum - 1].head, (WL)w);
2503 2866
2504 if (!((WL)w)->next) 2867 if (!((WL)w)->next)
2868# if EV_USE_SIGNALFD
2869 if (sigfd < 0) /*TODO*/
2870# endif
2505 { 2871 {
2506#if _WIN32 2872# ifdef _WIN32
2873 evpipe_init (EV_A);
2874
2507 signal (w->signum, ev_sighandler); 2875 signal (w->signum, ev_sighandler);
2508#else 2876# else
2509 struct sigaction sa; 2877 struct sigaction sa;
2878
2879 evpipe_init (EV_A);
2880
2510 sa.sa_handler = ev_sighandler; 2881 sa.sa_handler = ev_sighandler;
2511 sigfillset (&sa.sa_mask); 2882 sigfillset (&sa.sa_mask);
2512 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2883 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2513 sigaction (w->signum, &sa, 0); 2884 sigaction (w->signum, &sa, 0);
2885
2886 sigemptyset (&sa.sa_mask);
2887 sigaddset (&sa.sa_mask, w->signum);
2888 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2514#endif 2889#endif
2515 } 2890 }
2516 2891
2517 EV_FREQUENT_CHECK; 2892 EV_FREQUENT_CHECK;
2518} 2893}
2519 2894
2520void noinline 2895void noinline
… …
2528 2903
2529 wlist_del (&signals [w->signum - 1].head, (WL)w); 2904 wlist_del (&signals [w->signum - 1].head, (WL)w);
2530 ev_stop (EV_A_ (W)w); 2905 ev_stop (EV_A_ (W)w);
2531 2906
2532 if (!signals [w->signum - 1].head) 2907 if (!signals [w->signum - 1].head)
2908 {
2909#if EV_MULTIPLICITY
2910 signals [w->signum - 1].loop = 0; /* unattach from signal */
2911#endif
2912#if EV_USE_SIGNALFD
2913 if (sigfd >= 0)
2914 {
2915 sigset_t ss;
2916
2917 sigemptyset (&ss);
2918 sigaddset (&ss, w->signum);
2919 sigdelset (&sigfd_set, w->signum);
2920
2921 signalfd (sigfd, &sigfd_set, 0);
2922 sigprocmask (SIG_UNBLOCK, &ss, 0);
2923 }
2924 else
2925#endif
2533 signal (w->signum, SIG_DFL); 2926 signal (w->signum, SIG_DFL);
2927 }
2534 2928
2535 EV_FREQUENT_CHECK; 2929 EV_FREQUENT_CHECK;
2536} 2930}
2931
2932#endif
2933
2934#if EV_CHILD_ENABLE
2537 2935
2538void 2936void
2539ev_child_start (EV_P_ ev_child *w) 2937ev_child_start (EV_P_ ev_child *w)
2540{ 2938{
2541#if EV_MULTIPLICITY 2939#if EV_MULTIPLICITY
… …
2545 return; 2943 return;
2546 2944
2547 EV_FREQUENT_CHECK; 2945 EV_FREQUENT_CHECK;
2548 2946
2549 ev_start (EV_A_ (W)w, 1); 2947 ev_start (EV_A_ (W)w, 1);
2550 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2948 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2551 2949
2552 EV_FREQUENT_CHECK; 2950 EV_FREQUENT_CHECK;
2553} 2951}
2554 2952
2555void 2953void
… …
2559 if (expect_false (!ev_is_active (w))) 2957 if (expect_false (!ev_is_active (w)))
2560 return; 2958 return;
2561 2959
2562 EV_FREQUENT_CHECK; 2960 EV_FREQUENT_CHECK;
2563 2961
2564 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2962 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2565 ev_stop (EV_A_ (W)w); 2963 ev_stop (EV_A_ (W)w);
2566 2964
2567 EV_FREQUENT_CHECK; 2965 EV_FREQUENT_CHECK;
2568} 2966}
2967
2968#endif
2569 2969
2570#if EV_STAT_ENABLE 2970#if EV_STAT_ENABLE
2571 2971
2572# ifdef _WIN32 2972# ifdef _WIN32
2573# undef lstat 2973# undef lstat
… …
2579#define MIN_STAT_INTERVAL 0.1074891 2979#define MIN_STAT_INTERVAL 0.1074891
2580 2980
2581static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2981static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2582 2982
2583#if EV_USE_INOTIFY 2983#if EV_USE_INOTIFY
2584# define EV_INOTIFY_BUFSIZE 8192 2984
2985/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
2986# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2585 2987
2586static void noinline 2988static void noinline
2587infy_add (EV_P_ ev_stat *w) 2989infy_add (EV_P_ ev_stat *w)
2588{ 2990{
2589 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); 2991 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);
2590 2992
2591 if (w->wd < 0) 2993 if (w->wd >= 0)
2994 {
2995 struct statfs sfs;
2996
2997 /* now local changes will be tracked by inotify, but remote changes won't */
2998 /* unless the filesystem is known to be local, we therefore still poll */
2999 /* also do poll on <2.6.25, but with normal frequency */
3000
3001 if (!fs_2625)
3002 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3003 else if (!statfs (w->path, &sfs)
3004 && (sfs.f_type == 0x1373 /* devfs */
3005 || sfs.f_type == 0xEF53 /* ext2/3 */
3006 || sfs.f_type == 0x3153464a /* jfs */
3007 || sfs.f_type == 0x52654973 /* reiser3 */
3008 || sfs.f_type == 0x01021994 /* tempfs */
3009 || sfs.f_type == 0x58465342 /* xfs */))
3010 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3011 else
3012 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2592 { 3013 }
3014 else
3015 {
3016 /* can't use inotify, continue to stat */
2593 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3017 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2594 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2595 3018
2596 /* monitor some parent directory for speedup hints */ 3019 /* if path is not there, monitor some parent directory for speedup hints */
2597 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3020 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2598 /* but an efficiency issue only */ 3021 /* but an efficiency issue only */
2599 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3022 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2600 { 3023 {
2601 char path [4096]; 3024 char path [4096];
… …
2617 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3040 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2618 } 3041 }
2619 } 3042 }
2620 3043
2621 if (w->wd >= 0) 3044 if (w->wd >= 0)
2622 {
2623 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3045 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2624 3046
2625 /* now local changes will be tracked by inotify, but remote changes won't */ 3047 /* now re-arm timer, if required */
2626 /* unless the filesystem it known to be local, we therefore still poll */ 3048 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2627 /* also do poll on <2.6.25, but with normal frequency */
2628 struct statfs sfs;
2629
2630 if (fs_2625 && !statfs (w->path, &sfs))
2631 if (sfs.f_type == 0x1373 /* devfs */
2632 || sfs.f_type == 0xEF53 /* ext2/3 */
2633 || sfs.f_type == 0x3153464a /* jfs */
2634 || sfs.f_type == 0x52654973 /* reiser3 */
2635 || sfs.f_type == 0x01021994 /* tempfs */
2636 || sfs.f_type == 0x58465342 /* xfs */)
2637 return;
2638
2639 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2640 ev_timer_again (EV_A_ &w->timer); 3049 ev_timer_again (EV_A_ &w->timer);
2641 } 3050 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2642} 3051}
2643 3052
2644static void noinline 3053static void noinline
2645infy_del (EV_P_ ev_stat *w) 3054infy_del (EV_P_ ev_stat *w)
2646{ 3055{
… …
2649 3058
2650 if (wd < 0) 3059 if (wd < 0)
2651 return; 3060 return;
2652 3061
2653 w->wd = -2; 3062 w->wd = -2;
2654 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3063 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2655 wlist_del (&fs_hash [slot].head, (WL)w); 3064 wlist_del (&fs_hash [slot].head, (WL)w);
2656 3065
2657 /* remove this watcher, if others are watching it, they will rearm */ 3066 /* remove this watcher, if others are watching it, they will rearm */
2658 inotify_rm_watch (fs_fd, wd); 3067 inotify_rm_watch (fs_fd, wd);
2659} 3068}
… …
2661static void noinline 3070static void noinline
2662infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3071infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2663{ 3072{
2664 if (slot < 0) 3073 if (slot < 0)
2665 /* overflow, need to check for all hash slots */ 3074 /* overflow, need to check for all hash slots */
2666 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3075 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2667 infy_wd (EV_A_ slot, wd, ev); 3076 infy_wd (EV_A_ slot, wd, ev);
2668 else 3077 else
2669 { 3078 {
2670 WL w_; 3079 WL w_;
2671 3080
2672 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3081 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2673 { 3082 {
2674 ev_stat *w = (ev_stat *)w_; 3083 ev_stat *w = (ev_stat *)w_;
2675 w_ = w_->next; /* lets us remove this watcher and all before it */ 3084 w_ = w_->next; /* lets us remove this watcher and all before it */
2676 3085
2677 if (w->wd == wd || wd == -1) 3086 if (w->wd == wd || wd == -1)
2678 { 3087 {
2679 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3088 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2680 { 3089 {
2681 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3090 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2682 w->wd = -1; 3091 w->wd = -1;
2683 infy_add (EV_A_ w); /* re-add, no matter what */ 3092 infy_add (EV_A_ w); /* re-add, no matter what */
2684 } 3093 }
2685 3094
2686 stat_timer_cb (EV_A_ &w->timer, 0); 3095 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2691 3100
2692static void 3101static void
2693infy_cb (EV_P_ ev_io *w, int revents) 3102infy_cb (EV_P_ ev_io *w, int revents)
2694{ 3103{
2695 char buf [EV_INOTIFY_BUFSIZE]; 3104 char buf [EV_INOTIFY_BUFSIZE];
2696 struct inotify_event *ev = (struct inotify_event *)buf;
2697 int ofs; 3105 int ofs;
2698 int len = read (fs_fd, buf, sizeof (buf)); 3106 int len = read (fs_fd, buf, sizeof (buf));
2699 3107
2700 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3108 for (ofs = 0; ofs < len; )
3109 {
3110 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2701 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3111 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3112 ofs += sizeof (struct inotify_event) + ev->len;
3113 }
2702} 3114}
2703 3115
2704inline_size void 3116inline_size void
2705check_2625 (EV_P) 3117ev_check_2625 (EV_P)
2706{ 3118{
2707 /* kernels < 2.6.25 are borked 3119 /* kernels < 2.6.25 are borked
2708 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3120 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2709 */ 3121 */
2710 struct utsname buf; 3122 if (ev_linux_version () < 0x020619)
2711 int major, minor, micro;
2712
2713 if (uname (&buf))
2714 return; 3123 return;
2715 3124
2716 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2717 return;
2718
2719 if (major < 2
2720 || (major == 2 && minor < 6)
2721 || (major == 2 && minor == 6 && micro < 25))
2722 return;
2723
2724 fs_2625 = 1; 3125 fs_2625 = 1;
3126}
3127
3128inline_size int
3129infy_newfd (void)
3130{
3131#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3132 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3133 if (fd >= 0)
3134 return fd;
3135#endif
3136 return inotify_init ();
2725} 3137}
2726 3138
2727inline_size void 3139inline_size void
2728infy_init (EV_P) 3140infy_init (EV_P)
2729{ 3141{
2730 if (fs_fd != -2) 3142 if (fs_fd != -2)
2731 return; 3143 return;
2732 3144
2733 fs_fd = -1; 3145 fs_fd = -1;
2734 3146
2735 check_2625 (EV_A); 3147 ev_check_2625 (EV_A);
2736 3148
2737 fs_fd = inotify_init (); 3149 fs_fd = infy_newfd ();
2738 3150
2739 if (fs_fd >= 0) 3151 if (fs_fd >= 0)
2740 { 3152 {
3153 fd_intern (fs_fd);
2741 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3154 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2742 ev_set_priority (&fs_w, EV_MAXPRI); 3155 ev_set_priority (&fs_w, EV_MAXPRI);
2743 ev_io_start (EV_A_ &fs_w); 3156 ev_io_start (EV_A_ &fs_w);
3157 ev_unref (EV_A);
2744 } 3158 }
2745} 3159}
2746 3160
2747inline_size void 3161inline_size void
2748infy_fork (EV_P) 3162infy_fork (EV_P)
… …
2750 int slot; 3164 int slot;
2751 3165
2752 if (fs_fd < 0) 3166 if (fs_fd < 0)
2753 return; 3167 return;
2754 3168
3169 ev_ref (EV_A);
3170 ev_io_stop (EV_A_ &fs_w);
2755 close (fs_fd); 3171 close (fs_fd);
2756 fs_fd = inotify_init (); 3172 fs_fd = infy_newfd ();
2757 3173
3174 if (fs_fd >= 0)
3175 {
3176 fd_intern (fs_fd);
3177 ev_io_set (&fs_w, fs_fd, EV_READ);
3178 ev_io_start (EV_A_ &fs_w);
3179 ev_unref (EV_A);
3180 }
3181
2758 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3182 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2759 { 3183 {
2760 WL w_ = fs_hash [slot].head; 3184 WL w_ = fs_hash [slot].head;
2761 fs_hash [slot].head = 0; 3185 fs_hash [slot].head = 0;
2762 3186
2763 while (w_) 3187 while (w_)
… …
2768 w->wd = -1; 3192 w->wd = -1;
2769 3193
2770 if (fs_fd >= 0) 3194 if (fs_fd >= 0)
2771 infy_add (EV_A_ w); /* re-add, no matter what */ 3195 infy_add (EV_A_ w); /* re-add, no matter what */
2772 else 3196 else
3197 {
3198 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3199 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2773 ev_timer_again (EV_A_ &w->timer); 3200 ev_timer_again (EV_A_ &w->timer);
3201 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3202 }
2774 } 3203 }
2775 } 3204 }
2776} 3205}
2777 3206
2778#endif 3207#endif
… …
2795static void noinline 3224static void noinline
2796stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3225stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2797{ 3226{
2798 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3227 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2799 3228
2800 /* we copy this here each the time so that */ 3229 ev_statdata prev = w->attr;
2801 /* prev has the old value when the callback gets invoked */
2802 w->prev = w->attr;
2803 ev_stat_stat (EV_A_ w); 3230 ev_stat_stat (EV_A_ w);
2804 3231
2805 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3232 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2806 if ( 3233 if (
2807 w->prev.st_dev != w->attr.st_dev 3234 prev.st_dev != w->attr.st_dev
2808 || w->prev.st_ino != w->attr.st_ino 3235 || prev.st_ino != w->attr.st_ino
2809 || w->prev.st_mode != w->attr.st_mode 3236 || prev.st_mode != w->attr.st_mode
2810 || w->prev.st_nlink != w->attr.st_nlink 3237 || prev.st_nlink != w->attr.st_nlink
2811 || w->prev.st_uid != w->attr.st_uid 3238 || prev.st_uid != w->attr.st_uid
2812 || w->prev.st_gid != w->attr.st_gid 3239 || prev.st_gid != w->attr.st_gid
2813 || w->prev.st_rdev != w->attr.st_rdev 3240 || prev.st_rdev != w->attr.st_rdev
2814 || w->prev.st_size != w->attr.st_size 3241 || prev.st_size != w->attr.st_size
2815 || w->prev.st_atime != w->attr.st_atime 3242 || prev.st_atime != w->attr.st_atime
2816 || w->prev.st_mtime != w->attr.st_mtime 3243 || prev.st_mtime != w->attr.st_mtime
2817 || w->prev.st_ctime != w->attr.st_ctime 3244 || prev.st_ctime != w->attr.st_ctime
2818 ) { 3245 ) {
3246 /* we only update w->prev on actual differences */
3247 /* in case we test more often than invoke the callback, */
3248 /* to ensure that prev is always different to attr */
3249 w->prev = prev;
3250
2819 #if EV_USE_INOTIFY 3251 #if EV_USE_INOTIFY
2820 if (fs_fd >= 0) 3252 if (fs_fd >= 0)
2821 { 3253 {
2822 infy_del (EV_A_ w); 3254 infy_del (EV_A_ w);
2823 infy_add (EV_A_ w); 3255 infy_add (EV_A_ w);
… …
2848 3280
2849 if (fs_fd >= 0) 3281 if (fs_fd >= 0)
2850 infy_add (EV_A_ w); 3282 infy_add (EV_A_ w);
2851 else 3283 else
2852#endif 3284#endif
3285 {
2853 ev_timer_again (EV_A_ &w->timer); 3286 ev_timer_again (EV_A_ &w->timer);
3287 ev_unref (EV_A);
3288 }
2854 3289
2855 ev_start (EV_A_ (W)w, 1); 3290 ev_start (EV_A_ (W)w, 1);
2856 3291
2857 EV_FREQUENT_CHECK; 3292 EV_FREQUENT_CHECK;
2858} 3293}
… …
2867 EV_FREQUENT_CHECK; 3302 EV_FREQUENT_CHECK;
2868 3303
2869#if EV_USE_INOTIFY 3304#if EV_USE_INOTIFY
2870 infy_del (EV_A_ w); 3305 infy_del (EV_A_ w);
2871#endif 3306#endif
3307
3308 if (ev_is_active (&w->timer))
3309 {
3310 ev_ref (EV_A);
2872 ev_timer_stop (EV_A_ &w->timer); 3311 ev_timer_stop (EV_A_ &w->timer);
3312 }
2873 3313
2874 ev_stop (EV_A_ (W)w); 3314 ev_stop (EV_A_ (W)w);
2875 3315
2876 EV_FREQUENT_CHECK; 3316 EV_FREQUENT_CHECK;
2877} 3317}
… …
2922 3362
2923 EV_FREQUENT_CHECK; 3363 EV_FREQUENT_CHECK;
2924} 3364}
2925#endif 3365#endif
2926 3366
3367#if EV_PREPARE_ENABLE
2927void 3368void
2928ev_prepare_start (EV_P_ ev_prepare *w) 3369ev_prepare_start (EV_P_ ev_prepare *w)
2929{ 3370{
2930 if (expect_false (ev_is_active (w))) 3371 if (expect_false (ev_is_active (w)))
2931 return; 3372 return;
… …
2957 3398
2958 ev_stop (EV_A_ (W)w); 3399 ev_stop (EV_A_ (W)w);
2959 3400
2960 EV_FREQUENT_CHECK; 3401 EV_FREQUENT_CHECK;
2961} 3402}
3403#endif
2962 3404
3405#if EV_CHECK_ENABLE
2963void 3406void
2964ev_check_start (EV_P_ ev_check *w) 3407ev_check_start (EV_P_ ev_check *w)
2965{ 3408{
2966 if (expect_false (ev_is_active (w))) 3409 if (expect_false (ev_is_active (w)))
2967 return; 3410 return;
… …
2993 3436
2994 ev_stop (EV_A_ (W)w); 3437 ev_stop (EV_A_ (W)w);
2995 3438
2996 EV_FREQUENT_CHECK; 3439 EV_FREQUENT_CHECK;
2997} 3440}
3441#endif
2998 3442
2999#if EV_EMBED_ENABLE 3443#if EV_EMBED_ENABLE
3000void noinline 3444void noinline
3001ev_embed_sweep (EV_P_ ev_embed *w) 3445ev_embed_sweep (EV_P_ ev_embed *w)
3002{ 3446{
3003 ev_loop (w->other, EVLOOP_NONBLOCK); 3447 ev_run (w->other, EVRUN_NOWAIT);
3004} 3448}
3005 3449
3006static void 3450static void
3007embed_io_cb (EV_P_ ev_io *io, int revents) 3451embed_io_cb (EV_P_ ev_io *io, int revents)
3008{ 3452{
3009 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3453 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3010 3454
3011 if (ev_cb (w)) 3455 if (ev_cb (w))
3012 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3456 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3013 else 3457 else
3014 ev_loop (w->other, EVLOOP_NONBLOCK); 3458 ev_run (w->other, EVRUN_NOWAIT);
3015} 3459}
3016 3460
3017static void 3461static void
3018embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3462embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3019{ 3463{
3020 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3464 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3021 3465
3022 { 3466 {
3023 struct ev_loop *loop = w->other; 3467 EV_P = w->other;
3024 3468
3025 while (fdchangecnt) 3469 while (fdchangecnt)
3026 { 3470 {
3027 fd_reify (EV_A); 3471 fd_reify (EV_A);
3028 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3472 ev_run (EV_A_ EVRUN_NOWAIT);
3029 } 3473 }
3030 } 3474 }
3031} 3475}
3032 3476
3033static void 3477static void
… …
3036 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3480 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3037 3481
3038 ev_embed_stop (EV_A_ w); 3482 ev_embed_stop (EV_A_ w);
3039 3483
3040 { 3484 {
3041 struct ev_loop *loop = w->other; 3485 EV_P = w->other;
3042 3486
3043 ev_loop_fork (EV_A); 3487 ev_loop_fork (EV_A);
3044 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3488 ev_run (EV_A_ EVRUN_NOWAIT);
3045 } 3489 }
3046 3490
3047 ev_embed_start (EV_A_ w); 3491 ev_embed_start (EV_A_ w);
3048} 3492}
3049 3493
… …
3060{ 3504{
3061 if (expect_false (ev_is_active (w))) 3505 if (expect_false (ev_is_active (w)))
3062 return; 3506 return;
3063 3507
3064 { 3508 {
3065 struct ev_loop *loop = w->other; 3509 EV_P = w->other;
3066 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3510 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3067 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3511 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3068 } 3512 }
3069 3513
3070 EV_FREQUENT_CHECK; 3514 EV_FREQUENT_CHECK;
… …
3097 3541
3098 ev_io_stop (EV_A_ &w->io); 3542 ev_io_stop (EV_A_ &w->io);
3099 ev_prepare_stop (EV_A_ &w->prepare); 3543 ev_prepare_stop (EV_A_ &w->prepare);
3100 ev_fork_stop (EV_A_ &w->fork); 3544 ev_fork_stop (EV_A_ &w->fork);
3101 3545
3546 ev_stop (EV_A_ (W)w);
3547
3102 EV_FREQUENT_CHECK; 3548 EV_FREQUENT_CHECK;
3103} 3549}
3104#endif 3550#endif
3105 3551
3106#if EV_FORK_ENABLE 3552#if EV_FORK_ENABLE
… …
3139 3585
3140 EV_FREQUENT_CHECK; 3586 EV_FREQUENT_CHECK;
3141} 3587}
3142#endif 3588#endif
3143 3589
3144#if EV_ASYNC_ENABLE 3590#if EV_CLEANUP_ENABLE
3145void 3591void
3146ev_async_start (EV_P_ ev_async *w) 3592ev_cleanup_start (EV_P_ ev_cleanup *w)
3147{ 3593{
3148 if (expect_false (ev_is_active (w))) 3594 if (expect_false (ev_is_active (w)))
3149 return; 3595 return;
3596
3597 EV_FREQUENT_CHECK;
3598
3599 ev_start (EV_A_ (W)w, ++cleanupcnt);
3600 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3601 cleanups [cleanupcnt - 1] = w;
3602
3603 /* cleanup watchers should never keep a refcount on the loop */
3604 ev_unref (EV_A);
3605 EV_FREQUENT_CHECK;
3606}
3607
3608void
3609ev_cleanup_stop (EV_P_ ev_cleanup *w)
3610{
3611 clear_pending (EV_A_ (W)w);
3612 if (expect_false (!ev_is_active (w)))
3613 return;
3614
3615 EV_FREQUENT_CHECK;
3616 ev_ref (EV_A);
3617
3618 {
3619 int active = ev_active (w);
3620
3621 cleanups [active - 1] = cleanups [--cleanupcnt];
3622 ev_active (cleanups [active - 1]) = active;
3623 }
3624
3625 ev_stop (EV_A_ (W)w);
3626
3627 EV_FREQUENT_CHECK;
3628}
3629#endif
3630
3631#if EV_ASYNC_ENABLE
3632void
3633ev_async_start (EV_P_ ev_async *w)
3634{
3635 if (expect_false (ev_is_active (w)))
3636 return;
3637
3638 w->sent = 0;
3150 3639
3151 evpipe_init (EV_A); 3640 evpipe_init (EV_A);
3152 3641
3153 EV_FREQUENT_CHECK; 3642 EV_FREQUENT_CHECK;
3154 3643
… …
3182 3671
3183void 3672void
3184ev_async_send (EV_P_ ev_async *w) 3673ev_async_send (EV_P_ ev_async *w)
3185{ 3674{
3186 w->sent = 1; 3675 w->sent = 1;
3187 evpipe_write (EV_A_ &gotasync); 3676 evpipe_write (EV_A_ &async_pending);
3188} 3677}
3189#endif 3678#endif
3190 3679
3191/*****************************************************************************/ 3680/*****************************************************************************/
3192 3681
… …
3232{ 3721{
3233 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3722 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3234 3723
3235 if (expect_false (!once)) 3724 if (expect_false (!once))
3236 { 3725 {
3237 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3726 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3238 return; 3727 return;
3239 } 3728 }
3240 3729
3241 once->cb = cb; 3730 once->cb = cb;
3242 once->arg = arg; 3731 once->arg = arg;
… …
3329 if (types & EV_ASYNC) 3818 if (types & EV_ASYNC)
3330 for (i = asynccnt; i--; ) 3819 for (i = asynccnt; i--; )
3331 cb (EV_A_ EV_ASYNC, asyncs [i]); 3820 cb (EV_A_ EV_ASYNC, asyncs [i]);
3332#endif 3821#endif
3333 3822
3823#if EV_PREPARE_ENABLE
3334 if (types & EV_PREPARE) 3824 if (types & EV_PREPARE)
3335 for (i = preparecnt; i--; ) 3825 for (i = preparecnt; i--; )
3336#if EV_EMBED_ENABLE 3826# if EV_EMBED_ENABLE
3337 if (ev_cb (prepares [i]) != embed_prepare_cb) 3827 if (ev_cb (prepares [i]) != embed_prepare_cb)
3338#endif 3828# endif
3339 cb (EV_A_ EV_PREPARE, prepares [i]); 3829 cb (EV_A_ EV_PREPARE, prepares [i]);
3830#endif
3340 3831
3832#if EV_CHECK_ENABLE
3341 if (types & EV_CHECK) 3833 if (types & EV_CHECK)
3342 for (i = checkcnt; i--; ) 3834 for (i = checkcnt; i--; )
3343 cb (EV_A_ EV_CHECK, checks [i]); 3835 cb (EV_A_ EV_CHECK, checks [i]);
3836#endif
3344 3837
3838#if EV_SIGNAL_ENABLE
3345 if (types & EV_SIGNAL) 3839 if (types & EV_SIGNAL)
3346 for (i = 0; i < signalmax; ++i) 3840 for (i = 0; i < EV_NSIG - 1; ++i)
3347 for (wl = signals [i].head; wl; ) 3841 for (wl = signals [i].head; wl; )
3348 { 3842 {
3349 wn = wl->next; 3843 wn = wl->next;
3350 cb (EV_A_ EV_SIGNAL, wl); 3844 cb (EV_A_ EV_SIGNAL, wl);
3351 wl = wn; 3845 wl = wn;
3352 } 3846 }
3847#endif
3353 3848
3849#if EV_CHILD_ENABLE
3354 if (types & EV_CHILD) 3850 if (types & EV_CHILD)
3355 for (i = EV_PID_HASHSIZE; i--; ) 3851 for (i = (EV_PID_HASHSIZE); i--; )
3356 for (wl = childs [i]; wl; ) 3852 for (wl = childs [i]; wl; )
3357 { 3853 {
3358 wn = wl->next; 3854 wn = wl->next;
3359 cb (EV_A_ EV_CHILD, wl); 3855 cb (EV_A_ EV_CHILD, wl);
3360 wl = wn; 3856 wl = wn;
3361 } 3857 }
3858#endif
3362/* EV_STAT 0x00001000 /* stat data changed */ 3859/* EV_STAT 0x00001000 /* stat data changed */
3363/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3860/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3364} 3861}
3365#endif 3862#endif
3366 3863
3367#if EV_MULTIPLICITY 3864#if EV_MULTIPLICITY
3368 #include "ev_wrap.h" 3865 #include "ev_wrap.h"
3369#endif 3866#endif
3370 3867
3371#ifdef __cplusplus 3868EV_CPP(})
3372}
3373#endif
3374 3869

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