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Comparing libev/ev.c (file contents):
Revision 1.295 by root, Wed Jul 8 04:29:31 2009 UTC vs.
Revision 1.369 by root, Sun Jan 23 18:53:06 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
… …
77# ifndef EV_USE_REALTIME 73# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 74# define EV_USE_REALTIME 0
79# endif 75# endif
80# endif 76# endif
81 77
78# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 79# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 80# define EV_USE_NANOSLEEP EV_FEATURE_OS
81# endif
85# else 82# else
83# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 84# define EV_USE_NANOSLEEP 0
85# endif
86
87# if HAVE_SELECT && HAVE_SYS_SELECT_H
88# ifndef EV_USE_SELECT
89# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 90# endif
91# else
92# undef EV_USE_SELECT
93# define EV_USE_SELECT 0
88# endif 94# endif
89 95
96# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 97# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 98# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 99# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 100# else
101# undef EV_USE_POLL
102# define EV_USE_POLL 0 102# define EV_USE_POLL 0
103# endif
104# endif 103# endif
105 104
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 106# ifndef EV_USE_EPOLL
109# else 107# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 108# endif
109# else
110# undef EV_USE_EPOLL
111# define EV_USE_EPOLL 0
112# endif 112# endif
113 113
114# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 115# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 117# endif
118# else
119# undef EV_USE_KQUEUE
120# define EV_USE_KQUEUE 0
120# endif 121# endif
121 122
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 123# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 124# ifndef EV_USE_PORT
125# else 125# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 126# endif
127# else
128# undef EV_USE_PORT
129# define EV_USE_PORT 0
128# endif 130# endif
129 131
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 132# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 133# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 135# endif
136# else
137# undef EV_USE_INOTIFY
138# define EV_USE_INOTIFY 0
136# endif 139# endif
137 140
141# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138# ifndef EV_USE_EVENTFD 142# ifndef EV_USE_SIGNALFD
139# if HAVE_EVENTFD 143# define EV_USE_SIGNALFD EV_FEATURE_OS
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# endif 144# endif
145# else
146# undef EV_USE_SIGNALFD
147# define EV_USE_SIGNALFD 0
148# endif
149
150# if HAVE_EVENTFD
151# ifndef EV_USE_EVENTFD
152# define EV_USE_EVENTFD EV_FEATURE_OS
153# endif
154# else
155# undef EV_USE_EVENTFD
156# define EV_USE_EVENTFD 0
144# endif 157# endif
145 158
146#endif 159#endif
147 160
148#include <math.h> 161#include <math.h>
149#include <stdlib.h> 162#include <stdlib.h>
163#include <string.h>
150#include <fcntl.h> 164#include <fcntl.h>
151#include <stddef.h> 165#include <stddef.h>
152 166
153#include <stdio.h> 167#include <stdio.h>
154 168
155#include <assert.h> 169#include <assert.h>
156#include <errno.h> 170#include <errno.h>
157#include <sys/types.h> 171#include <sys/types.h>
158#include <time.h> 172#include <time.h>
173#include <limits.h>
159 174
160#include <signal.h> 175#include <signal.h>
161 176
162#ifdef EV_H 177#ifdef EV_H
163# include EV_H 178# include EV_H
164#else 179#else
165# include "ev.h" 180# include "ev.h"
166#endif 181#endif
182
183EV_CPP(extern "C" {)
167 184
168#ifndef _WIN32 185#ifndef _WIN32
169# include <sys/time.h> 186# include <sys/time.h>
170# include <sys/wait.h> 187# include <sys/wait.h>
171# include <unistd.h> 188# include <unistd.h>
… …
174# define WIN32_LEAN_AND_MEAN 191# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 192# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 193# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 194# define EV_SELECT_IS_WINSOCKET 1
178# endif 195# endif
196# undef EV_AVOID_STDIO
179#endif 197#endif
198
199/* OS X, in its infinite idiocy, actually HARDCODES
200 * a limit of 1024 into their select. Where people have brains,
201 * OS X engineers apparently have a vacuum. Or maybe they were
202 * ordered to have a vacuum, or they do anything for money.
203 * This might help. Or not.
204 */
205#define _DARWIN_UNLIMITED_SELECT 1
180 206
181/* this block tries to deduce configuration from header-defined symbols and defaults */ 207/* this block tries to deduce configuration from header-defined symbols and defaults */
208
209/* try to deduce the maximum number of signals on this platform */
210#if defined (EV_NSIG)
211/* use what's provided */
212#elif defined (NSIG)
213# define EV_NSIG (NSIG)
214#elif defined(_NSIG)
215# define EV_NSIG (_NSIG)
216#elif defined (SIGMAX)
217# define EV_NSIG (SIGMAX+1)
218#elif defined (SIG_MAX)
219# define EV_NSIG (SIG_MAX+1)
220#elif defined (_SIG_MAX)
221# define EV_NSIG (_SIG_MAX+1)
222#elif defined (MAXSIG)
223# define EV_NSIG (MAXSIG+1)
224#elif defined (MAX_SIG)
225# define EV_NSIG (MAX_SIG+1)
226#elif defined (SIGARRAYSIZE)
227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
228#elif defined (_sys_nsig)
229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
230#else
231# error "unable to find value for NSIG, please report"
232/* to make it compile regardless, just remove the above line, */
233/* but consider reporting it, too! :) */
234# define EV_NSIG 65
235#endif
182 236
183#ifndef EV_USE_CLOCK_SYSCALL 237#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 238# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 240# else
187# define EV_USE_CLOCK_SYSCALL 0 241# define EV_USE_CLOCK_SYSCALL 0
188# endif 242# endif
189#endif 243#endif
190 244
191#ifndef EV_USE_MONOTONIC 245#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 247# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 248# else
195# define EV_USE_MONOTONIC 0 249# define EV_USE_MONOTONIC 0
196# endif 250# endif
197#endif 251#endif
198 252
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 254# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 255#endif
202 256
203#ifndef EV_USE_NANOSLEEP 257#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 258# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 259# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 260# else
207# define EV_USE_NANOSLEEP 0 261# define EV_USE_NANOSLEEP 0
208# endif 262# endif
209#endif 263#endif
210 264
211#ifndef EV_USE_SELECT 265#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 266# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 267#endif
214 268
215#ifndef EV_USE_POLL 269#ifndef EV_USE_POLL
216# ifdef _WIN32 270# ifdef _WIN32
217# define EV_USE_POLL 0 271# define EV_USE_POLL 0
218# else 272# else
219# define EV_USE_POLL 1 273# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 274# endif
221#endif 275#endif
222 276
223#ifndef EV_USE_EPOLL 277#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 279# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 280# else
227# define EV_USE_EPOLL 0 281# define EV_USE_EPOLL 0
228# endif 282# endif
229#endif 283#endif
230 284
… …
236# define EV_USE_PORT 0 290# define EV_USE_PORT 0
237#endif 291#endif
238 292
239#ifndef EV_USE_INOTIFY 293#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 295# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 296# else
243# define EV_USE_INOTIFY 0 297# define EV_USE_INOTIFY 0
244# endif 298# endif
245#endif 299#endif
246 300
247#ifndef EV_PID_HASHSIZE 301#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 302# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249# define EV_PID_HASHSIZE 1
250# else
251# define EV_PID_HASHSIZE 16
252# endif
253#endif 303#endif
254 304
255#ifndef EV_INOTIFY_HASHSIZE 305#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 306# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_INOTIFY_HASHSIZE 1
258# else
259# define EV_INOTIFY_HASHSIZE 16
260# endif
261#endif 307#endif
262 308
263#ifndef EV_USE_EVENTFD 309#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 311# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 312# else
267# define EV_USE_EVENTFD 0 313# define EV_USE_EVENTFD 0
314# endif
315#endif
316
317#ifndef EV_USE_SIGNALFD
318# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
319# define EV_USE_SIGNALFD EV_FEATURE_OS
320# else
321# define EV_USE_SIGNALFD 0
268# endif 322# endif
269#endif 323#endif
270 324
271#if 0 /* debugging */ 325#if 0 /* debugging */
272# define EV_VERIFY 3 326# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 327# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 328# define EV_HEAP_CACHE_AT 1
275#endif 329#endif
276 330
277#ifndef EV_VERIFY 331#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 332# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 333#endif
280 334
281#ifndef EV_USE_4HEAP 335#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 336# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 337#endif
284 338
285#ifndef EV_HEAP_CACHE_AT 339#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif 341#endif
288 342
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 343/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290/* which makes programs even slower. might work on other unices, too. */ 344/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 345#if EV_USE_CLOCK_SYSCALL
… …
300# endif 354# endif
301#endif 355#endif
302 356
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 357/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304 358
359#ifdef _AIX
360/* AIX has a completely broken poll.h header */
361# undef EV_USE_POLL
362# define EV_USE_POLL 0
363#endif
364
305#ifndef CLOCK_MONOTONIC 365#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 366# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 367# define EV_USE_MONOTONIC 0
308#endif 368#endif
309 369
… …
322# include <sys/select.h> 382# include <sys/select.h>
323# endif 383# endif
324#endif 384#endif
325 385
326#if EV_USE_INOTIFY 386#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 387# include <sys/statfs.h>
329# include <sys/inotify.h> 388# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 389/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 390# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 391# undef EV_USE_INOTIFY
… …
339#endif 398#endif
340 399
341#if EV_USE_EVENTFD 400#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 401/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 402# include <stdint.h>
344# ifdef __cplusplus 403# ifndef EFD_NONBLOCK
345extern "C" { 404# define EFD_NONBLOCK O_NONBLOCK
346# endif 405# endif
347int eventfd (unsigned int initval, int flags); 406# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 407# ifdef O_CLOEXEC
349} 408# define EFD_CLOEXEC O_CLOEXEC
409# else
410# define EFD_CLOEXEC 02000000
411# endif
350# endif 412# endif
413EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
414#endif
415
416#if EV_USE_SIGNALFD
417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
418# include <stdint.h>
419# ifndef SFD_NONBLOCK
420# define SFD_NONBLOCK O_NONBLOCK
421# endif
422# ifndef SFD_CLOEXEC
423# ifdef O_CLOEXEC
424# define SFD_CLOEXEC O_CLOEXEC
425# else
426# define SFD_CLOEXEC 02000000
427# endif
428# endif
429EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
430
431struct signalfd_siginfo
432{
433 uint32_t ssi_signo;
434 char pad[128 - sizeof (uint32_t)];
435};
351#endif 436#endif
352 437
353/**/ 438/**/
354 439
355#if EV_VERIFY >= 3 440#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 441# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 442#else
358# define EV_FREQUENT_CHECK do { } while (0) 443# define EV_FREQUENT_CHECK do { } while (0)
359#endif 444#endif
360 445
361/* 446/*
… …
368 */ 453 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 454#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
370 455
371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 456#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
372#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 457#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
373/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ 458
459#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
460#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
374 461
375#if __GNUC__ >= 4 462#if __GNUC__ >= 4
376# define expect(expr,value) __builtin_expect ((expr),(value)) 463# define expect(expr,value) __builtin_expect ((expr),(value))
377# define noinline __attribute__ ((noinline)) 464# define noinline __attribute__ ((noinline))
378#else 465#else
… …
385 472
386#define expect_false(expr) expect ((expr) != 0, 0) 473#define expect_false(expr) expect ((expr) != 0, 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 474#define expect_true(expr) expect ((expr) != 0, 1)
388#define inline_size static inline 475#define inline_size static inline
389 476
390#if EV_MINIMAL 477#if EV_FEATURE_CODE
478# define inline_speed static inline
479#else
391# define inline_speed static noinline 480# define inline_speed static noinline
392#else
393# define inline_speed static inline
394#endif 481#endif
395 482
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 483#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397 484
398#if EV_MINPRI == EV_MAXPRI 485#if EV_MINPRI == EV_MAXPRI
… …
411#define ev_active(w) ((W)(w))->active 498#define ev_active(w) ((W)(w))->active
412#define ev_at(w) ((WT)(w))->at 499#define ev_at(w) ((WT)(w))->at
413 500
414#if EV_USE_REALTIME 501#if EV_USE_REALTIME
415/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 502/* sig_atomic_t is used to avoid per-thread variables or locking but still */
416/* giving it a reasonably high chance of working on typical architetcures */ 503/* giving it a reasonably high chance of working on typical architectures */
417static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 504static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
418#endif 505#endif
419 506
420#if EV_USE_MONOTONIC 507#if EV_USE_MONOTONIC
421static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 508static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422#endif 509#endif
423 510
511#ifndef EV_FD_TO_WIN32_HANDLE
512# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
513#endif
514#ifndef EV_WIN32_HANDLE_TO_FD
515# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
516#endif
517#ifndef EV_WIN32_CLOSE_FD
518# define EV_WIN32_CLOSE_FD(fd) close (fd)
519#endif
520
424#ifdef _WIN32 521#ifdef _WIN32
425# include "ev_win32.c" 522# include "ev_win32.c"
426#endif 523#endif
427 524
428/*****************************************************************************/ 525/*****************************************************************************/
526
527#ifdef __linux
528# include <sys/utsname.h>
529#endif
530
531static unsigned int noinline
532ev_linux_version (void)
533{
534#ifdef __linux
535 unsigned int v = 0;
536 struct utsname buf;
537 int i;
538 char *p = buf.release;
539
540 if (uname (&buf))
541 return 0;
542
543 for (i = 3+1; --i; )
544 {
545 unsigned int c = 0;
546
547 for (;;)
548 {
549 if (*p >= '0' && *p <= '9')
550 c = c * 10 + *p++ - '0';
551 else
552 {
553 p += *p == '.';
554 break;
555 }
556 }
557
558 v = (v << 8) | c;
559 }
560
561 return v;
562#else
563 return 0;
564#endif
565}
566
567/*****************************************************************************/
568
569#if EV_AVOID_STDIO
570static void noinline
571ev_printerr (const char *msg)
572{
573 write (STDERR_FILENO, msg, strlen (msg));
574}
575#endif
429 576
430static void (*syserr_cb)(const char *msg); 577static void (*syserr_cb)(const char *msg);
431 578
432void 579void
433ev_set_syserr_cb (void (*cb)(const char *msg)) 580ev_set_syserr_cb (void (*cb)(const char *msg))
… …
443 590
444 if (syserr_cb) 591 if (syserr_cb)
445 syserr_cb (msg); 592 syserr_cb (msg);
446 else 593 else
447 { 594 {
595#if EV_AVOID_STDIO
596 ev_printerr (msg);
597 ev_printerr (": ");
598 ev_printerr (strerror (errno));
599 ev_printerr ("\n");
600#else
448 perror (msg); 601 perror (msg);
602#endif
449 abort (); 603 abort ();
450 } 604 }
451} 605}
452 606
453static void * 607static void *
454ev_realloc_emul (void *ptr, long size) 608ev_realloc_emul (void *ptr, long size)
455{ 609{
610#if __GLIBC__
611 return realloc (ptr, size);
612#else
456 /* some systems, notably openbsd and darwin, fail to properly 613 /* some systems, notably openbsd and darwin, fail to properly
457 * implement realloc (x, 0) (as required by both ansi c-98 and 614 * implement realloc (x, 0) (as required by both ansi c-89 and
458 * the single unix specification, so work around them here. 615 * the single unix specification, so work around them here.
459 */ 616 */
460 617
461 if (size) 618 if (size)
462 return realloc (ptr, size); 619 return realloc (ptr, size);
463 620
464 free (ptr); 621 free (ptr);
465 return 0; 622 return 0;
623#endif
466} 624}
467 625
468static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 626static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
469 627
470void 628void
… …
478{ 636{
479 ptr = alloc (ptr, size); 637 ptr = alloc (ptr, size);
480 638
481 if (!ptr && size) 639 if (!ptr && size)
482 { 640 {
641#if EV_AVOID_STDIO
642 ev_printerr ("(libev) memory allocation failed, aborting.\n");
643#else
483 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 644 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
645#endif
484 abort (); 646 abort ();
485 } 647 }
486 648
487 return ptr; 649 return ptr;
488} 650}
… …
490#define ev_malloc(size) ev_realloc (0, (size)) 652#define ev_malloc(size) ev_realloc (0, (size))
491#define ev_free(ptr) ev_realloc ((ptr), 0) 653#define ev_free(ptr) ev_realloc ((ptr), 0)
492 654
493/*****************************************************************************/ 655/*****************************************************************************/
494 656
657/* set in reify when reification needed */
658#define EV_ANFD_REIFY 1
659
495/* file descriptor info structure */ 660/* file descriptor info structure */
496typedef struct 661typedef struct
497{ 662{
498 WL head; 663 WL head;
499 unsigned char events; /* the events watched for */ 664 unsigned char events; /* the events watched for */
500 unsigned char reify; /* flag set when this ANFD needs reification */ 665 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
501 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 666 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
502 unsigned char unused; 667 unsigned char unused;
503#if EV_USE_EPOLL 668#if EV_USE_EPOLL
504 unsigned int egen; /* generation counter to counter epoll bugs */ 669 unsigned int egen; /* generation counter to counter epoll bugs */
505#endif 670#endif
506#if EV_SELECT_IS_WINSOCKET 671#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
507 SOCKET handle; 672 SOCKET handle;
673#endif
674#if EV_USE_IOCP
675 OVERLAPPED or, ow;
508#endif 676#endif
509} ANFD; 677} ANFD;
510 678
511/* stores the pending event set for a given watcher */ 679/* stores the pending event set for a given watcher */
512typedef struct 680typedef struct
… …
567 735
568 static int ev_default_loop_ptr; 736 static int ev_default_loop_ptr;
569 737
570#endif 738#endif
571 739
740#if EV_FEATURE_API
741# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
742# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
743# define EV_INVOKE_PENDING invoke_cb (EV_A)
744#else
745# define EV_RELEASE_CB (void)0
746# define EV_ACQUIRE_CB (void)0
747# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
748#endif
749
750#define EVBREAK_RECURSE 0x80
751
572/*****************************************************************************/ 752/*****************************************************************************/
573 753
574#ifndef EV_HAVE_EV_TIME 754#ifndef EV_HAVE_EV_TIME
575ev_tstamp 755ev_tstamp
576ev_time (void) 756ev_time (void)
… …
619 if (delay > 0.) 799 if (delay > 0.)
620 { 800 {
621#if EV_USE_NANOSLEEP 801#if EV_USE_NANOSLEEP
622 struct timespec ts; 802 struct timespec ts;
623 803
624 ts.tv_sec = (time_t)delay; 804 EV_TS_SET (ts, delay);
625 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
626
627 nanosleep (&ts, 0); 805 nanosleep (&ts, 0);
628#elif defined(_WIN32) 806#elif defined(_WIN32)
629 Sleep ((unsigned long)(delay * 1e3)); 807 Sleep ((unsigned long)(delay * 1e3));
630#else 808#else
631 struct timeval tv; 809 struct timeval tv;
632 810
633 tv.tv_sec = (time_t)delay;
634 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
635
636 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 811 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
637 /* somehting not guaranteed by newer posix versions, but guaranteed */ 812 /* something not guaranteed by newer posix versions, but guaranteed */
638 /* by older ones */ 813 /* by older ones */
814 EV_TV_SET (tv, delay);
639 select (0, 0, 0, 0, &tv); 815 select (0, 0, 0, 0, &tv);
640#endif 816#endif
641 } 817 }
642} 818}
643 819
820inline_speed int
821ev_timeout_to_ms (ev_tstamp timeout)
822{
823 int ms = timeout * 1000. + .999999;
824
825 return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
826}
827
644/*****************************************************************************/ 828/*****************************************************************************/
645 829
646#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 830#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
647 831
648/* find a suitable new size for the given array, */ 832/* find a suitable new size for the given array, */
649/* hopefully by rounding to a ncie-to-malloc size */ 833/* hopefully by rounding to a nice-to-malloc size */
650inline_size int 834inline_size int
651array_nextsize (int elem, int cur, int cnt) 835array_nextsize (int elem, int cur, int cnt)
652{ 836{
653 int ncur = cur + 1; 837 int ncur = cur + 1;
654 838
… …
750} 934}
751 935
752/*****************************************************************************/ 936/*****************************************************************************/
753 937
754inline_speed void 938inline_speed void
755fd_event (EV_P_ int fd, int revents) 939fd_event_nocheck (EV_P_ int fd, int revents)
756{ 940{
757 ANFD *anfd = anfds + fd; 941 ANFD *anfd = anfds + fd;
758 ev_io *w; 942 ev_io *w;
759 943
760 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 944 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
764 if (ev) 948 if (ev)
765 ev_feed_event (EV_A_ (W)w, ev); 949 ev_feed_event (EV_A_ (W)w, ev);
766 } 950 }
767} 951}
768 952
953/* do not submit kernel events for fds that have reify set */
954/* because that means they changed while we were polling for new events */
955inline_speed void
956fd_event (EV_P_ int fd, int revents)
957{
958 ANFD *anfd = anfds + fd;
959
960 if (expect_true (!anfd->reify))
961 fd_event_nocheck (EV_A_ fd, revents);
962}
963
769void 964void
770ev_feed_fd_event (EV_P_ int fd, int revents) 965ev_feed_fd_event (EV_P_ int fd, int revents)
771{ 966{
772 if (fd >= 0 && fd < anfdmax) 967 if (fd >= 0 && fd < anfdmax)
773 fd_event (EV_A_ fd, revents); 968 fd_event_nocheck (EV_A_ fd, revents);
774} 969}
775 970
776/* make sure the external fd watch events are in-sync */ 971/* make sure the external fd watch events are in-sync */
777/* with the kernel/libev internal state */ 972/* with the kernel/libev internal state */
778inline_size void 973inline_size void
… …
784 { 979 {
785 int fd = fdchanges [i]; 980 int fd = fdchanges [i];
786 ANFD *anfd = anfds + fd; 981 ANFD *anfd = anfds + fd;
787 ev_io *w; 982 ev_io *w;
788 983
789 unsigned char events = 0; 984 unsigned char o_events = anfd->events;
985 unsigned char o_reify = anfd->reify;
790 986
791 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 987 anfd->reify = 0;
792 events |= (unsigned char)w->events;
793 988
794#if EV_SELECT_IS_WINSOCKET 989#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
795 if (events) 990 if (o_reify & EV__IOFDSET)
796 { 991 {
797 unsigned long arg; 992 unsigned long arg;
798 #ifdef EV_FD_TO_WIN32_HANDLE
799 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 993 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
800 #else
801 anfd->handle = _get_osfhandle (fd);
802 #endif
803 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 994 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
995 printf ("oi %d %x\n", fd, anfd->handle);//D
804 } 996 }
805#endif 997#endif
806 998
999 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
807 { 1000 {
808 unsigned char o_events = anfd->events;
809 unsigned char o_reify = anfd->reify;
810
811 anfd->reify = 0;
812 anfd->events = events; 1001 anfd->events = 0;
813 1002
814 if (o_events != events || o_reify & EV__IOFDSET) 1003 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1004 anfd->events |= (unsigned char)w->events;
1005
1006 if (o_events != anfd->events)
1007 o_reify = EV__IOFDSET; /* actually |= */
1008 }
1009
1010 if (o_reify & EV__IOFDSET)
815 backend_modify (EV_A_ fd, o_events, events); 1011 backend_modify (EV_A_ fd, o_events, anfd->events);
816 }
817 } 1012 }
818 1013
819 fdchangecnt = 0; 1014 fdchangecnt = 0;
820} 1015}
821 1016
… …
845 ev_io_stop (EV_A_ w); 1040 ev_io_stop (EV_A_ w);
846 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1041 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
847 } 1042 }
848} 1043}
849 1044
850/* check whether the given fd is atcually valid, for error recovery */ 1045/* check whether the given fd is actually valid, for error recovery */
851inline_size int 1046inline_size int
852fd_valid (int fd) 1047fd_valid (int fd)
853{ 1048{
854#ifdef _WIN32 1049#ifdef _WIN32
855 return _get_osfhandle (fd) != -1; 1050 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
856#else 1051#else
857 return fcntl (fd, F_GETFD) != -1; 1052 return fcntl (fd, F_GETFD) != -1;
858#endif 1053#endif
859} 1054}
860 1055
… …
878 1073
879 for (fd = anfdmax; fd--; ) 1074 for (fd = anfdmax; fd--; )
880 if (anfds [fd].events) 1075 if (anfds [fd].events)
881 { 1076 {
882 fd_kill (EV_A_ fd); 1077 fd_kill (EV_A_ fd);
883 return; 1078 break;
884 } 1079 }
885} 1080}
886 1081
887/* usually called after fork if backend needs to re-arm all fds from scratch */ 1082/* usually called after fork if backend needs to re-arm all fds from scratch */
888static void noinline 1083static void noinline
… …
893 for (fd = 0; fd < anfdmax; ++fd) 1088 for (fd = 0; fd < anfdmax; ++fd)
894 if (anfds [fd].events) 1089 if (anfds [fd].events)
895 { 1090 {
896 anfds [fd].events = 0; 1091 anfds [fd].events = 0;
897 anfds [fd].emask = 0; 1092 anfds [fd].emask = 0;
898 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1093 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
899 } 1094 }
900} 1095}
901 1096
1097/* used to prepare libev internal fd's */
1098/* this is not fork-safe */
1099inline_speed void
1100fd_intern (int fd)
1101{
1102#ifdef _WIN32
1103 unsigned long arg = 1;
1104 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1105#else
1106 fcntl (fd, F_SETFD, FD_CLOEXEC);
1107 fcntl (fd, F_SETFL, O_NONBLOCK);
1108#endif
1109}
1110
902/*****************************************************************************/ 1111/*****************************************************************************/
903 1112
904/* 1113/*
905 * the heap functions want a real array index. array index 0 uis guaranteed to not 1114 * the heap functions want a real array index. array index 0 is guaranteed to not
906 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1115 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
907 * the branching factor of the d-tree. 1116 * the branching factor of the d-tree.
908 */ 1117 */
909 1118
910/* 1119/*
… …
978 1187
979 for (;;) 1188 for (;;)
980 { 1189 {
981 int c = k << 1; 1190 int c = k << 1;
982 1191
983 if (c > N + HEAP0 - 1) 1192 if (c >= N + HEAP0)
984 break; 1193 break;
985 1194
986 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1195 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
987 ? 1 : 0; 1196 ? 1 : 0;
988 1197
… …
1024 1233
1025/* move an element suitably so it is in a correct place */ 1234/* move an element suitably so it is in a correct place */
1026inline_size void 1235inline_size void
1027adjustheap (ANHE *heap, int N, int k) 1236adjustheap (ANHE *heap, int N, int k)
1028{ 1237{
1029 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1238 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1030 upheap (heap, k); 1239 upheap (heap, k);
1031 else 1240 else
1032 downheap (heap, N, k); 1241 downheap (heap, N, k);
1033} 1242}
1034 1243
… …
1047/*****************************************************************************/ 1256/*****************************************************************************/
1048 1257
1049/* associate signal watchers to a signal signal */ 1258/* associate signal watchers to a signal signal */
1050typedef struct 1259typedef struct
1051{ 1260{
1261 EV_ATOMIC_T pending;
1262#if EV_MULTIPLICITY
1263 EV_P;
1264#endif
1052 WL head; 1265 WL head;
1053 EV_ATOMIC_T gotsig;
1054} ANSIG; 1266} ANSIG;
1055 1267
1056static ANSIG *signals; 1268static ANSIG signals [EV_NSIG - 1];
1057static int signalmax;
1058
1059static EV_ATOMIC_T gotsig;
1060 1269
1061/*****************************************************************************/ 1270/*****************************************************************************/
1062 1271
1063/* used to prepare libev internal fd's */ 1272#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1064/* this is not fork-safe */
1065inline_speed void
1066fd_intern (int fd)
1067{
1068#ifdef _WIN32
1069 unsigned long arg = 1;
1070 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1071#else
1072 fcntl (fd, F_SETFD, FD_CLOEXEC);
1073 fcntl (fd, F_SETFL, O_NONBLOCK);
1074#endif
1075}
1076 1273
1077static void noinline 1274static void noinline
1078evpipe_init (EV_P) 1275evpipe_init (EV_P)
1079{ 1276{
1080 if (!ev_is_active (&pipe_w)) 1277 if (!ev_is_active (&pipe_w))
1081 { 1278 {
1082#if EV_USE_EVENTFD 1279# if EV_USE_EVENTFD
1280 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1281 if (evfd < 0 && errno == EINVAL)
1083 if ((evfd = eventfd (0, 0)) >= 0) 1282 evfd = eventfd (0, 0);
1283
1284 if (evfd >= 0)
1084 { 1285 {
1085 evpipe [0] = -1; 1286 evpipe [0] = -1;
1086 fd_intern (evfd); 1287 fd_intern (evfd); /* doing it twice doesn't hurt */
1087 ev_io_set (&pipe_w, evfd, EV_READ); 1288 ev_io_set (&pipe_w, evfd, EV_READ);
1088 } 1289 }
1089 else 1290 else
1090#endif 1291# endif
1091 { 1292 {
1092 while (pipe (evpipe)) 1293 while (pipe (evpipe))
1093 ev_syserr ("(libev) error creating signal/async pipe"); 1294 ev_syserr ("(libev) error creating signal/async pipe");
1094 1295
1095 fd_intern (evpipe [0]); 1296 fd_intern (evpipe [0]);
… …
1106evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1307evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1107{ 1308{
1108 if (!*flag) 1309 if (!*flag)
1109 { 1310 {
1110 int old_errno = errno; /* save errno because write might clobber it */ 1311 int old_errno = errno; /* save errno because write might clobber it */
1312 char dummy;
1111 1313
1112 *flag = 1; 1314 *flag = 1;
1113 1315
1114#if EV_USE_EVENTFD 1316#if EV_USE_EVENTFD
1115 if (evfd >= 0) 1317 if (evfd >= 0)
… …
1117 uint64_t counter = 1; 1319 uint64_t counter = 1;
1118 write (evfd, &counter, sizeof (uint64_t)); 1320 write (evfd, &counter, sizeof (uint64_t));
1119 } 1321 }
1120 else 1322 else
1121#endif 1323#endif
1324 /* win32 people keep sending patches that change this write() to send() */
1325 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1326 /* so when you think this write should be a send instead, please find out */
1327 /* where your send() is from - it's definitely not the microsoft send, and */
1328 /* tell me. thank you. */
1122 write (evpipe [1], &old_errno, 1); 1329 write (evpipe [1], &dummy, 1);
1123 1330
1124 errno = old_errno; 1331 errno = old_errno;
1125 } 1332 }
1126} 1333}
1127 1334
1128/* called whenever the libev signal pipe */ 1335/* called whenever the libev signal pipe */
1129/* got some events (signal, async) */ 1336/* got some events (signal, async) */
1130static void 1337static void
1131pipecb (EV_P_ ev_io *iow, int revents) 1338pipecb (EV_P_ ev_io *iow, int revents)
1132{ 1339{
1340 int i;
1341
1133#if EV_USE_EVENTFD 1342#if EV_USE_EVENTFD
1134 if (evfd >= 0) 1343 if (evfd >= 0)
1135 { 1344 {
1136 uint64_t counter; 1345 uint64_t counter;
1137 read (evfd, &counter, sizeof (uint64_t)); 1346 read (evfd, &counter, sizeof (uint64_t));
1138 } 1347 }
1139 else 1348 else
1140#endif 1349#endif
1141 { 1350 {
1142 char dummy; 1351 char dummy;
1352 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1143 read (evpipe [0], &dummy, 1); 1353 read (evpipe [0], &dummy, 1);
1144 } 1354 }
1145 1355
1146 if (gotsig && ev_is_default_loop (EV_A)) 1356#if EV_SIGNAL_ENABLE
1357 if (sig_pending)
1147 { 1358 {
1148 int signum; 1359 sig_pending = 0;
1149 gotsig = 0;
1150 1360
1151 for (signum = signalmax; signum--; ) 1361 for (i = EV_NSIG - 1; i--; )
1152 if (signals [signum].gotsig) 1362 if (expect_false (signals [i].pending))
1153 ev_feed_signal_event (EV_A_ signum + 1); 1363 ev_feed_signal_event (EV_A_ i + 1);
1154 } 1364 }
1365#endif
1155 1366
1156#if EV_ASYNC_ENABLE 1367#if EV_ASYNC_ENABLE
1157 if (gotasync) 1368 if (async_pending)
1158 { 1369 {
1159 int i; 1370 async_pending = 0;
1160 gotasync = 0;
1161 1371
1162 for (i = asynccnt; i--; ) 1372 for (i = asynccnt; i--; )
1163 if (asyncs [i]->sent) 1373 if (asyncs [i]->sent)
1164 { 1374 {
1165 asyncs [i]->sent = 0; 1375 asyncs [i]->sent = 0;
… …
1169#endif 1379#endif
1170} 1380}
1171 1381
1172/*****************************************************************************/ 1382/*****************************************************************************/
1173 1383
1384void
1385ev_feed_signal (int signum)
1386{
1387#if EV_MULTIPLICITY
1388 EV_P = signals [signum - 1].loop;
1389
1390 if (!EV_A)
1391 return;
1392#endif
1393
1394 signals [signum - 1].pending = 1;
1395 evpipe_write (EV_A_ &sig_pending);
1396}
1397
1174static void 1398static void
1175ev_sighandler (int signum) 1399ev_sighandler (int signum)
1176{ 1400{
1177#if EV_MULTIPLICITY
1178 struct ev_loop *loop = &default_loop_struct;
1179#endif
1180
1181#if _WIN32 1401#ifdef _WIN32
1182 signal (signum, ev_sighandler); 1402 signal (signum, ev_sighandler);
1183#endif 1403#endif
1184 1404
1185 signals [signum - 1].gotsig = 1; 1405 ev_feed_signal (signum);
1186 evpipe_write (EV_A_ &gotsig);
1187} 1406}
1188 1407
1189void noinline 1408void noinline
1190ev_feed_signal_event (EV_P_ int signum) 1409ev_feed_signal_event (EV_P_ int signum)
1191{ 1410{
1192 WL w; 1411 WL w;
1193 1412
1413 if (expect_false (signum <= 0 || signum > EV_NSIG))
1414 return;
1415
1416 --signum;
1417
1194#if EV_MULTIPLICITY 1418#if EV_MULTIPLICITY
1195 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1419 /* it is permissible to try to feed a signal to the wrong loop */
1196#endif 1420 /* or, likely more useful, feeding a signal nobody is waiting for */
1197 1421
1198 --signum; 1422 if (expect_false (signals [signum].loop != EV_A))
1199
1200 if (signum < 0 || signum >= signalmax)
1201 return; 1423 return;
1424#endif
1202 1425
1203 signals [signum].gotsig = 0; 1426 signals [signum].pending = 0;
1204 1427
1205 for (w = signals [signum].head; w; w = w->next) 1428 for (w = signals [signum].head; w; w = w->next)
1206 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1429 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1207} 1430}
1208 1431
1432#if EV_USE_SIGNALFD
1433static void
1434sigfdcb (EV_P_ ev_io *iow, int revents)
1435{
1436 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1437
1438 for (;;)
1439 {
1440 ssize_t res = read (sigfd, si, sizeof (si));
1441
1442 /* not ISO-C, as res might be -1, but works with SuS */
1443 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1444 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1445
1446 if (res < (ssize_t)sizeof (si))
1447 break;
1448 }
1449}
1450#endif
1451
1452#endif
1453
1209/*****************************************************************************/ 1454/*****************************************************************************/
1210 1455
1456#if EV_CHILD_ENABLE
1211static WL childs [EV_PID_HASHSIZE]; 1457static WL childs [EV_PID_HASHSIZE];
1212
1213#ifndef _WIN32
1214 1458
1215static ev_signal childev; 1459static ev_signal childev;
1216 1460
1217#ifndef WIFCONTINUED 1461#ifndef WIFCONTINUED
1218# define WIFCONTINUED(status) 0 1462# define WIFCONTINUED(status) 0
… …
1223child_reap (EV_P_ int chain, int pid, int status) 1467child_reap (EV_P_ int chain, int pid, int status)
1224{ 1468{
1225 ev_child *w; 1469 ev_child *w;
1226 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1470 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1227 1471
1228 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1472 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1229 { 1473 {
1230 if ((w->pid == pid || !w->pid) 1474 if ((w->pid == pid || !w->pid)
1231 && (!traced || (w->flags & 1))) 1475 && (!traced || (w->flags & 1)))
1232 { 1476 {
1233 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1477 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1258 /* make sure we are called again until all children have been reaped */ 1502 /* make sure we are called again until all children have been reaped */
1259 /* we need to do it this way so that the callback gets called before we continue */ 1503 /* we need to do it this way so that the callback gets called before we continue */
1260 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1504 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1261 1505
1262 child_reap (EV_A_ pid, pid, status); 1506 child_reap (EV_A_ pid, pid, status);
1263 if (EV_PID_HASHSIZE > 1) 1507 if ((EV_PID_HASHSIZE) > 1)
1264 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1508 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1265} 1509}
1266 1510
1267#endif 1511#endif
1268 1512
1269/*****************************************************************************/ 1513/*****************************************************************************/
1270 1514
1515#if EV_USE_IOCP
1516# include "ev_iocp.c"
1517#endif
1271#if EV_USE_PORT 1518#if EV_USE_PORT
1272# include "ev_port.c" 1519# include "ev_port.c"
1273#endif 1520#endif
1274#if EV_USE_KQUEUE 1521#if EV_USE_KQUEUE
1275# include "ev_kqueue.c" 1522# include "ev_kqueue.c"
… …
1335#ifdef __APPLE__ 1582#ifdef __APPLE__
1336 /* only select works correctly on that "unix-certified" platform */ 1583 /* only select works correctly on that "unix-certified" platform */
1337 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1584 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1338 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1585 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1339#endif 1586#endif
1587#ifdef __FreeBSD__
1588 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1589#endif
1340 1590
1341 return flags; 1591 return flags;
1342} 1592}
1343 1593
1344unsigned int 1594unsigned int
1345ev_embeddable_backends (void) 1595ev_embeddable_backends (void)
1346{ 1596{
1347 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1597 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1348 1598
1349 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1599 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1350 /* please fix it and tell me how to detect the fix */ 1600 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1351 flags &= ~EVBACKEND_EPOLL; 1601 flags &= ~EVBACKEND_EPOLL;
1352 1602
1353 return flags; 1603 return flags;
1354} 1604}
1355 1605
1356unsigned int 1606unsigned int
1357ev_backend (EV_P) 1607ev_backend (EV_P)
1358{ 1608{
1359 return backend; 1609 return backend;
1360} 1610}
1361 1611
1612#if EV_FEATURE_API
1362unsigned int 1613unsigned int
1363ev_loop_count (EV_P) 1614ev_iteration (EV_P)
1364{ 1615{
1365 return loop_count; 1616 return loop_count;
1366} 1617}
1367 1618
1368unsigned int 1619unsigned int
1369ev_loop_depth (EV_P) 1620ev_depth (EV_P)
1370{ 1621{
1371 return loop_depth; 1622 return loop_depth;
1372} 1623}
1373 1624
1374void 1625void
… …
1380void 1631void
1381ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1632ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1382{ 1633{
1383 timeout_blocktime = interval; 1634 timeout_blocktime = interval;
1384} 1635}
1636
1637void
1638ev_set_userdata (EV_P_ void *data)
1639{
1640 userdata = data;
1641}
1642
1643void *
1644ev_userdata (EV_P)
1645{
1646 return userdata;
1647}
1648
1649void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1650{
1651 invoke_cb = invoke_pending_cb;
1652}
1653
1654void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1655{
1656 release_cb = release;
1657 acquire_cb = acquire;
1658}
1659#endif
1385 1660
1386/* initialise a loop structure, must be zero-initialised */ 1661/* initialise a loop structure, must be zero-initialised */
1387static void noinline 1662static void noinline
1388loop_init (EV_P_ unsigned int flags) 1663loop_init (EV_P_ unsigned int flags)
1389{ 1664{
1390 if (!backend) 1665 if (!backend)
1391 { 1666 {
1667 origflags = flags;
1668
1392#if EV_USE_REALTIME 1669#if EV_USE_REALTIME
1393 if (!have_realtime) 1670 if (!have_realtime)
1394 { 1671 {
1395 struct timespec ts; 1672 struct timespec ts;
1396 1673
… …
1407 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1684 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1408 have_monotonic = 1; 1685 have_monotonic = 1;
1409 } 1686 }
1410#endif 1687#endif
1411 1688
1689 /* pid check not overridable via env */
1690#ifndef _WIN32
1691 if (flags & EVFLAG_FORKCHECK)
1692 curpid = getpid ();
1693#endif
1694
1695 if (!(flags & EVFLAG_NOENV)
1696 && !enable_secure ()
1697 && getenv ("LIBEV_FLAGS"))
1698 flags = atoi (getenv ("LIBEV_FLAGS"));
1699
1412 ev_rt_now = ev_time (); 1700 ev_rt_now = ev_time ();
1413 mn_now = get_clock (); 1701 mn_now = get_clock ();
1414 now_floor = mn_now; 1702 now_floor = mn_now;
1415 rtmn_diff = ev_rt_now - mn_now; 1703 rtmn_diff = ev_rt_now - mn_now;
1704#if EV_FEATURE_API
1705 invoke_cb = ev_invoke_pending;
1706#endif
1416 1707
1417 io_blocktime = 0.; 1708 io_blocktime = 0.;
1418 timeout_blocktime = 0.; 1709 timeout_blocktime = 0.;
1419 backend = 0; 1710 backend = 0;
1420 backend_fd = -1; 1711 backend_fd = -1;
1421 gotasync = 0; 1712 sig_pending = 0;
1713#if EV_ASYNC_ENABLE
1714 async_pending = 0;
1715#endif
1422#if EV_USE_INOTIFY 1716#if EV_USE_INOTIFY
1423 fs_fd = -2; 1717 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1424#endif 1718#endif
1425 1719#if EV_USE_SIGNALFD
1426 /* pid check not overridable via env */ 1720 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1427#ifndef _WIN32
1428 if (flags & EVFLAG_FORKCHECK)
1429 curpid = getpid ();
1430#endif 1721#endif
1431 1722
1432 if (!(flags & EVFLAG_NOENV) 1723 if (!(flags & EVBACKEND_MASK))
1433 && !enable_secure ()
1434 && getenv ("LIBEV_FLAGS"))
1435 flags = atoi (getenv ("LIBEV_FLAGS"));
1436
1437 if (!(flags & 0x0000ffffU))
1438 flags |= ev_recommended_backends (); 1724 flags |= ev_recommended_backends ();
1439 1725
1726#if EV_USE_IOCP
1727 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1728#endif
1440#if EV_USE_PORT 1729#if EV_USE_PORT
1441 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1730 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1442#endif 1731#endif
1443#if EV_USE_KQUEUE 1732#if EV_USE_KQUEUE
1444 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1733 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1453 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1742 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1454#endif 1743#endif
1455 1744
1456 ev_prepare_init (&pending_w, pendingcb); 1745 ev_prepare_init (&pending_w, pendingcb);
1457 1746
1747#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1458 ev_init (&pipe_w, pipecb); 1748 ev_init (&pipe_w, pipecb);
1459 ev_set_priority (&pipe_w, EV_MAXPRI); 1749 ev_set_priority (&pipe_w, EV_MAXPRI);
1750#endif
1460 } 1751 }
1461} 1752}
1462 1753
1463/* free up a loop structure */ 1754/* free up a loop structure */
1464static void noinline 1755void
1465loop_destroy (EV_P) 1756ev_loop_destroy (EV_P)
1466{ 1757{
1467 int i; 1758 int i;
1468 1759
1760#if EV_MULTIPLICITY
1761 /* mimic free (0) */
1762 if (!EV_A)
1763 return;
1764#endif
1765
1766#if EV_CLEANUP_ENABLE
1767 /* queue cleanup watchers (and execute them) */
1768 if (expect_false (cleanupcnt))
1769 {
1770 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1771 EV_INVOKE_PENDING;
1772 }
1773#endif
1774
1775#if EV_CHILD_ENABLE
1776 if (ev_is_active (&childev))
1777 {
1778 ev_ref (EV_A); /* child watcher */
1779 ev_signal_stop (EV_A_ &childev);
1780 }
1781#endif
1782
1469 if (ev_is_active (&pipe_w)) 1783 if (ev_is_active (&pipe_w))
1470 { 1784 {
1471 ev_ref (EV_A); /* signal watcher */ 1785 /*ev_ref (EV_A);*/
1472 ev_io_stop (EV_A_ &pipe_w); 1786 /*ev_io_stop (EV_A_ &pipe_w);*/
1473 1787
1474#if EV_USE_EVENTFD 1788#if EV_USE_EVENTFD
1475 if (evfd >= 0) 1789 if (evfd >= 0)
1476 close (evfd); 1790 close (evfd);
1477#endif 1791#endif
1478 1792
1479 if (evpipe [0] >= 0) 1793 if (evpipe [0] >= 0)
1480 { 1794 {
1481 close (evpipe [0]); 1795 EV_WIN32_CLOSE_FD (evpipe [0]);
1482 close (evpipe [1]); 1796 EV_WIN32_CLOSE_FD (evpipe [1]);
1483 } 1797 }
1484 } 1798 }
1799
1800#if EV_USE_SIGNALFD
1801 if (ev_is_active (&sigfd_w))
1802 close (sigfd);
1803#endif
1485 1804
1486#if EV_USE_INOTIFY 1805#if EV_USE_INOTIFY
1487 if (fs_fd >= 0) 1806 if (fs_fd >= 0)
1488 close (fs_fd); 1807 close (fs_fd);
1489#endif 1808#endif
1490 1809
1491 if (backend_fd >= 0) 1810 if (backend_fd >= 0)
1492 close (backend_fd); 1811 close (backend_fd);
1493 1812
1813#if EV_USE_IOCP
1814 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1815#endif
1494#if EV_USE_PORT 1816#if EV_USE_PORT
1495 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1817 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1496#endif 1818#endif
1497#if EV_USE_KQUEUE 1819#if EV_USE_KQUEUE
1498 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1820 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1513#if EV_IDLE_ENABLE 1835#if EV_IDLE_ENABLE
1514 array_free (idle, [i]); 1836 array_free (idle, [i]);
1515#endif 1837#endif
1516 } 1838 }
1517 1839
1518 ev_free (anfds); anfdmax = 0; 1840 ev_free (anfds); anfds = 0; anfdmax = 0;
1519 1841
1520 /* have to use the microsoft-never-gets-it-right macro */ 1842 /* have to use the microsoft-never-gets-it-right macro */
1521 array_free (rfeed, EMPTY); 1843 array_free (rfeed, EMPTY);
1522 array_free (fdchange, EMPTY); 1844 array_free (fdchange, EMPTY);
1523 array_free (timer, EMPTY); 1845 array_free (timer, EMPTY);
… …
1525 array_free (periodic, EMPTY); 1847 array_free (periodic, EMPTY);
1526#endif 1848#endif
1527#if EV_FORK_ENABLE 1849#if EV_FORK_ENABLE
1528 array_free (fork, EMPTY); 1850 array_free (fork, EMPTY);
1529#endif 1851#endif
1852#if EV_CLEANUP_ENABLE
1853 array_free (cleanup, EMPTY);
1854#endif
1530 array_free (prepare, EMPTY); 1855 array_free (prepare, EMPTY);
1531 array_free (check, EMPTY); 1856 array_free (check, EMPTY);
1532#if EV_ASYNC_ENABLE 1857#if EV_ASYNC_ENABLE
1533 array_free (async, EMPTY); 1858 array_free (async, EMPTY);
1534#endif 1859#endif
1535 1860
1536 backend = 0; 1861 backend = 0;
1862
1863#if EV_MULTIPLICITY
1864 if (ev_is_default_loop (EV_A))
1865#endif
1866 ev_default_loop_ptr = 0;
1867#if EV_MULTIPLICITY
1868 else
1869 ev_free (EV_A);
1870#endif
1537} 1871}
1538 1872
1539#if EV_USE_INOTIFY 1873#if EV_USE_INOTIFY
1540inline_size void infy_fork (EV_P); 1874inline_size void infy_fork (EV_P);
1541#endif 1875#endif
… …
1558 1892
1559 if (ev_is_active (&pipe_w)) 1893 if (ev_is_active (&pipe_w))
1560 { 1894 {
1561 /* this "locks" the handlers against writing to the pipe */ 1895 /* this "locks" the handlers against writing to the pipe */
1562 /* while we modify the fd vars */ 1896 /* while we modify the fd vars */
1563 gotsig = 1; 1897 sig_pending = 1;
1564#if EV_ASYNC_ENABLE 1898#if EV_ASYNC_ENABLE
1565 gotasync = 1; 1899 async_pending = 1;
1566#endif 1900#endif
1567 1901
1568 ev_ref (EV_A); 1902 ev_ref (EV_A);
1569 ev_io_stop (EV_A_ &pipe_w); 1903 ev_io_stop (EV_A_ &pipe_w);
1570 1904
… …
1573 close (evfd); 1907 close (evfd);
1574#endif 1908#endif
1575 1909
1576 if (evpipe [0] >= 0) 1910 if (evpipe [0] >= 0)
1577 { 1911 {
1578 close (evpipe [0]); 1912 EV_WIN32_CLOSE_FD (evpipe [0]);
1579 close (evpipe [1]); 1913 EV_WIN32_CLOSE_FD (evpipe [1]);
1580 } 1914 }
1581 1915
1916#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1582 evpipe_init (EV_A); 1917 evpipe_init (EV_A);
1583 /* now iterate over everything, in case we missed something */ 1918 /* now iterate over everything, in case we missed something */
1584 pipecb (EV_A_ &pipe_w, EV_READ); 1919 pipecb (EV_A_ &pipe_w, EV_READ);
1920#endif
1585 } 1921 }
1586 1922
1587 postfork = 0; 1923 postfork = 0;
1588} 1924}
1589 1925
1590#if EV_MULTIPLICITY 1926#if EV_MULTIPLICITY
1591 1927
1592struct ev_loop * 1928struct ev_loop *
1593ev_loop_new (unsigned int flags) 1929ev_loop_new (unsigned int flags)
1594{ 1930{
1595 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1931 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1596 1932
1597 memset (loop, 0, sizeof (struct ev_loop)); 1933 memset (EV_A, 0, sizeof (struct ev_loop));
1598
1599 loop_init (EV_A_ flags); 1934 loop_init (EV_A_ flags);
1600 1935
1601 if (ev_backend (EV_A)) 1936 if (ev_backend (EV_A))
1602 return loop; 1937 return EV_A;
1603 1938
1939 ev_free (EV_A);
1604 return 0; 1940 return 0;
1605} 1941}
1606 1942
1607void 1943#endif /* multiplicity */
1608ev_loop_destroy (EV_P)
1609{
1610 loop_destroy (EV_A);
1611 ev_free (loop);
1612}
1613
1614void
1615ev_loop_fork (EV_P)
1616{
1617 postfork = 1; /* must be in line with ev_default_fork */
1618}
1619 1944
1620#if EV_VERIFY 1945#if EV_VERIFY
1621static void noinline 1946static void noinline
1622verify_watcher (EV_P_ W w) 1947verify_watcher (EV_P_ W w)
1623{ 1948{
… …
1651 verify_watcher (EV_A_ ws [cnt]); 1976 verify_watcher (EV_A_ ws [cnt]);
1652 } 1977 }
1653} 1978}
1654#endif 1979#endif
1655 1980
1981#if EV_FEATURE_API
1656void 1982void
1657ev_loop_verify (EV_P) 1983ev_verify (EV_P)
1658{ 1984{
1659#if EV_VERIFY 1985#if EV_VERIFY
1660 int i; 1986 int i;
1661 WL w; 1987 WL w;
1662 1988
… …
1696#if EV_FORK_ENABLE 2022#if EV_FORK_ENABLE
1697 assert (forkmax >= forkcnt); 2023 assert (forkmax >= forkcnt);
1698 array_verify (EV_A_ (W *)forks, forkcnt); 2024 array_verify (EV_A_ (W *)forks, forkcnt);
1699#endif 2025#endif
1700 2026
2027#if EV_CLEANUP_ENABLE
2028 assert (cleanupmax >= cleanupcnt);
2029 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2030#endif
2031
1701#if EV_ASYNC_ENABLE 2032#if EV_ASYNC_ENABLE
1702 assert (asyncmax >= asynccnt); 2033 assert (asyncmax >= asynccnt);
1703 array_verify (EV_A_ (W *)asyncs, asynccnt); 2034 array_verify (EV_A_ (W *)asyncs, asynccnt);
1704#endif 2035#endif
1705 2036
2037#if EV_PREPARE_ENABLE
1706 assert (preparemax >= preparecnt); 2038 assert (preparemax >= preparecnt);
1707 array_verify (EV_A_ (W *)prepares, preparecnt); 2039 array_verify (EV_A_ (W *)prepares, preparecnt);
2040#endif
1708 2041
2042#if EV_CHECK_ENABLE
1709 assert (checkmax >= checkcnt); 2043 assert (checkmax >= checkcnt);
1710 array_verify (EV_A_ (W *)checks, checkcnt); 2044 array_verify (EV_A_ (W *)checks, checkcnt);
2045#endif
1711 2046
1712# if 0 2047# if 0
2048#if EV_CHILD_ENABLE
1713 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2049 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1714 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2050 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2051#endif
1715# endif 2052# endif
1716#endif 2053#endif
1717} 2054}
1718 2055#endif
1719#endif /* multiplicity */
1720 2056
1721#if EV_MULTIPLICITY 2057#if EV_MULTIPLICITY
1722struct ev_loop * 2058struct ev_loop *
1723ev_default_loop_init (unsigned int flags)
1724#else 2059#else
1725int 2060int
2061#endif
1726ev_default_loop (unsigned int flags) 2062ev_default_loop (unsigned int flags)
1727#endif
1728{ 2063{
1729 if (!ev_default_loop_ptr) 2064 if (!ev_default_loop_ptr)
1730 { 2065 {
1731#if EV_MULTIPLICITY 2066#if EV_MULTIPLICITY
1732 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2067 EV_P = ev_default_loop_ptr = &default_loop_struct;
1733#else 2068#else
1734 ev_default_loop_ptr = 1; 2069 ev_default_loop_ptr = 1;
1735#endif 2070#endif
1736 2071
1737 loop_init (EV_A_ flags); 2072 loop_init (EV_A_ flags);
1738 2073
1739 if (ev_backend (EV_A)) 2074 if (ev_backend (EV_A))
1740 { 2075 {
1741#ifndef _WIN32 2076#if EV_CHILD_ENABLE
1742 ev_signal_init (&childev, childcb, SIGCHLD); 2077 ev_signal_init (&childev, childcb, SIGCHLD);
1743 ev_set_priority (&childev, EV_MAXPRI); 2078 ev_set_priority (&childev, EV_MAXPRI);
1744 ev_signal_start (EV_A_ &childev); 2079 ev_signal_start (EV_A_ &childev);
1745 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2080 ev_unref (EV_A); /* child watcher should not keep loop alive */
1746#endif 2081#endif
… …
1751 2086
1752 return ev_default_loop_ptr; 2087 return ev_default_loop_ptr;
1753} 2088}
1754 2089
1755void 2090void
1756ev_default_destroy (void) 2091ev_loop_fork (EV_P)
1757{ 2092{
1758#if EV_MULTIPLICITY
1759 struct ev_loop *loop = ev_default_loop_ptr;
1760#endif
1761
1762 ev_default_loop_ptr = 0;
1763
1764#ifndef _WIN32
1765 ev_ref (EV_A); /* child watcher */
1766 ev_signal_stop (EV_A_ &childev);
1767#endif
1768
1769 loop_destroy (EV_A);
1770}
1771
1772void
1773ev_default_fork (void)
1774{
1775#if EV_MULTIPLICITY
1776 struct ev_loop *loop = ev_default_loop_ptr;
1777#endif
1778
1779 postfork = 1; /* must be in line with ev_loop_fork */ 2093 postfork = 1; /* must be in line with ev_default_fork */
1780} 2094}
1781 2095
1782/*****************************************************************************/ 2096/*****************************************************************************/
1783 2097
1784void 2098void
1785ev_invoke (EV_P_ void *w, int revents) 2099ev_invoke (EV_P_ void *w, int revents)
1786{ 2100{
1787 EV_CB_INVOKE ((W)w, revents); 2101 EV_CB_INVOKE ((W)w, revents);
1788} 2102}
1789 2103
1790inline_speed void 2104unsigned int
1791call_pending (EV_P) 2105ev_pending_count (EV_P)
2106{
2107 int pri;
2108 unsigned int count = 0;
2109
2110 for (pri = NUMPRI; pri--; )
2111 count += pendingcnt [pri];
2112
2113 return count;
2114}
2115
2116void noinline
2117ev_invoke_pending (EV_P)
1792{ 2118{
1793 int pri; 2119 int pri;
1794 2120
1795 for (pri = NUMPRI; pri--; ) 2121 for (pri = NUMPRI; pri--; )
1796 while (pendingcnt [pri]) 2122 while (pendingcnt [pri])
1797 { 2123 {
1798 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2124 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1799
1800 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1801 /* ^ this is no longer true, as pending_w could be here */
1802 2125
1803 p->w->pending = 0; 2126 p->w->pending = 0;
1804 EV_CB_INVOKE (p->w, p->events); 2127 EV_CB_INVOKE (p->w, p->events);
1805 EV_FREQUENT_CHECK; 2128 EV_FREQUENT_CHECK;
1806 } 2129 }
… …
1863 EV_FREQUENT_CHECK; 2186 EV_FREQUENT_CHECK;
1864 feed_reverse (EV_A_ (W)w); 2187 feed_reverse (EV_A_ (W)w);
1865 } 2188 }
1866 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2189 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1867 2190
1868 feed_reverse_done (EV_A_ EV_TIMEOUT); 2191 feed_reverse_done (EV_A_ EV_TIMER);
1869 } 2192 }
1870} 2193}
1871 2194
1872#if EV_PERIODIC_ENABLE 2195#if EV_PERIODIC_ENABLE
1873/* make periodics pending */ 2196/* make periodics pending */
… …
1926 feed_reverse_done (EV_A_ EV_PERIODIC); 2249 feed_reverse_done (EV_A_ EV_PERIODIC);
1927 } 2250 }
1928} 2251}
1929 2252
1930/* simply recalculate all periodics */ 2253/* simply recalculate all periodics */
1931/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2254/* TODO: maybe ensure that at least one event happens when jumping forward? */
1932static void noinline 2255static void noinline
1933periodics_reschedule (EV_P) 2256periodics_reschedule (EV_P)
1934{ 2257{
1935 int i; 2258 int i;
1936 2259
… …
1964 ANHE_at_cache (*he); 2287 ANHE_at_cache (*he);
1965 } 2288 }
1966} 2289}
1967 2290
1968/* fetch new monotonic and realtime times from the kernel */ 2291/* fetch new monotonic and realtime times from the kernel */
1969/* also detetc if there was a timejump, and act accordingly */ 2292/* also detect if there was a timejump, and act accordingly */
1970inline_speed void 2293inline_speed void
1971time_update (EV_P_ ev_tstamp max_block) 2294time_update (EV_P_ ev_tstamp max_block)
1972{ 2295{
1973#if EV_USE_MONOTONIC 2296#if EV_USE_MONOTONIC
1974 if (expect_true (have_monotonic)) 2297 if (expect_true (have_monotonic))
… …
2032 mn_now = ev_rt_now; 2355 mn_now = ev_rt_now;
2033 } 2356 }
2034} 2357}
2035 2358
2036void 2359void
2037ev_loop (EV_P_ int flags) 2360ev_run (EV_P_ int flags)
2038{ 2361{
2362#if EV_FEATURE_API
2039 ++loop_depth; 2363 ++loop_depth;
2364#endif
2040 2365
2366 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2367
2041 loop_done = EVUNLOOP_CANCEL; 2368 loop_done = EVBREAK_CANCEL;
2042 2369
2043 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2370 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2044 2371
2045 do 2372 do
2046 { 2373 {
2047#if EV_VERIFY >= 2 2374#if EV_VERIFY >= 2
2048 ev_loop_verify (EV_A); 2375 ev_verify (EV_A);
2049#endif 2376#endif
2050 2377
2051#ifndef _WIN32 2378#ifndef _WIN32
2052 if (expect_false (curpid)) /* penalise the forking check even more */ 2379 if (expect_false (curpid)) /* penalise the forking check even more */
2053 if (expect_false (getpid () != curpid)) 2380 if (expect_false (getpid () != curpid))
… …
2061 /* we might have forked, so queue fork handlers */ 2388 /* we might have forked, so queue fork handlers */
2062 if (expect_false (postfork)) 2389 if (expect_false (postfork))
2063 if (forkcnt) 2390 if (forkcnt)
2064 { 2391 {
2065 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2392 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2066 call_pending (EV_A); 2393 EV_INVOKE_PENDING;
2067 } 2394 }
2068#endif 2395#endif
2069 2396
2397#if EV_PREPARE_ENABLE
2070 /* queue prepare watchers (and execute them) */ 2398 /* queue prepare watchers (and execute them) */
2071 if (expect_false (preparecnt)) 2399 if (expect_false (preparecnt))
2072 { 2400 {
2073 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2401 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2074 call_pending (EV_A); 2402 EV_INVOKE_PENDING;
2075 } 2403 }
2404#endif
2405
2406 if (expect_false (loop_done))
2407 break;
2076 2408
2077 /* we might have forked, so reify kernel state if necessary */ 2409 /* we might have forked, so reify kernel state if necessary */
2078 if (expect_false (postfork)) 2410 if (expect_false (postfork))
2079 loop_fork (EV_A); 2411 loop_fork (EV_A);
2080 2412
… …
2084 /* calculate blocking time */ 2416 /* calculate blocking time */
2085 { 2417 {
2086 ev_tstamp waittime = 0.; 2418 ev_tstamp waittime = 0.;
2087 ev_tstamp sleeptime = 0.; 2419 ev_tstamp sleeptime = 0.;
2088 2420
2421 /* remember old timestamp for io_blocktime calculation */
2422 ev_tstamp prev_mn_now = mn_now;
2423
2424 /* update time to cancel out callback processing overhead */
2425 time_update (EV_A_ 1e100);
2426
2089 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2427 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2090 { 2428 {
2091 /* remember old timestamp for io_blocktime calculation */
2092 ev_tstamp prev_mn_now = mn_now;
2093
2094 /* update time to cancel out callback processing overhead */
2095 time_update (EV_A_ 1e100);
2096
2097 waittime = MAX_BLOCKTIME; 2429 waittime = MAX_BLOCKTIME;
2098 2430
2099 if (timercnt) 2431 if (timercnt)
2100 { 2432 {
2101 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2433 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
2128 waittime -= sleeptime; 2460 waittime -= sleeptime;
2129 } 2461 }
2130 } 2462 }
2131 } 2463 }
2132 2464
2465#if EV_FEATURE_API
2133 ++loop_count; 2466 ++loop_count;
2467#endif
2468 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2134 backend_poll (EV_A_ waittime); 2469 backend_poll (EV_A_ waittime);
2470 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2135 2471
2136 /* update ev_rt_now, do magic */ 2472 /* update ev_rt_now, do magic */
2137 time_update (EV_A_ waittime + sleeptime); 2473 time_update (EV_A_ waittime + sleeptime);
2138 } 2474 }
2139 2475
… …
2146#if EV_IDLE_ENABLE 2482#if EV_IDLE_ENABLE
2147 /* queue idle watchers unless other events are pending */ 2483 /* queue idle watchers unless other events are pending */
2148 idle_reify (EV_A); 2484 idle_reify (EV_A);
2149#endif 2485#endif
2150 2486
2487#if EV_CHECK_ENABLE
2151 /* queue check watchers, to be executed first */ 2488 /* queue check watchers, to be executed first */
2152 if (expect_false (checkcnt)) 2489 if (expect_false (checkcnt))
2153 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2490 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2491#endif
2154 2492
2155 call_pending (EV_A); 2493 EV_INVOKE_PENDING;
2156 } 2494 }
2157 while (expect_true ( 2495 while (expect_true (
2158 activecnt 2496 activecnt
2159 && !loop_done 2497 && !loop_done
2160 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2498 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2161 )); 2499 ));
2162 2500
2163 if (loop_done == EVUNLOOP_ONE) 2501 if (loop_done == EVBREAK_ONE)
2164 loop_done = EVUNLOOP_CANCEL; 2502 loop_done = EVBREAK_CANCEL;
2165 2503
2504#if EV_FEATURE_API
2166 --loop_depth; 2505 --loop_depth;
2506#endif
2167} 2507}
2168 2508
2169void 2509void
2170ev_unloop (EV_P_ int how) 2510ev_break (EV_P_ int how)
2171{ 2511{
2172 loop_done = how; 2512 loop_done = how;
2173} 2513}
2174 2514
2175void 2515void
… …
2222inline_size void 2562inline_size void
2223wlist_del (WL *head, WL elem) 2563wlist_del (WL *head, WL elem)
2224{ 2564{
2225 while (*head) 2565 while (*head)
2226 { 2566 {
2227 if (*head == elem) 2567 if (expect_true (*head == elem))
2228 { 2568 {
2229 *head = elem->next; 2569 *head = elem->next;
2230 return; 2570 break;
2231 } 2571 }
2232 2572
2233 head = &(*head)->next; 2573 head = &(*head)->next;
2234 } 2574 }
2235} 2575}
… …
2295 2635
2296 if (expect_false (ev_is_active (w))) 2636 if (expect_false (ev_is_active (w)))
2297 return; 2637 return;
2298 2638
2299 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2639 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2300 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2640 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2301 2641
2302 EV_FREQUENT_CHECK; 2642 EV_FREQUENT_CHECK;
2303 2643
2304 ev_start (EV_A_ (W)w, 1); 2644 ev_start (EV_A_ (W)w, 1);
2305 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2645 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2306 wlist_add (&anfds[fd].head, (WL)w); 2646 wlist_add (&anfds[fd].head, (WL)w);
2307 2647
2308 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 2648 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2309 w->events &= ~EV__IOFDSET; 2649 w->events &= ~EV__IOFDSET;
2310 2650
2311 EV_FREQUENT_CHECK; 2651 EV_FREQUENT_CHECK;
2312} 2652}
2313 2653
… …
2323 EV_FREQUENT_CHECK; 2663 EV_FREQUENT_CHECK;
2324 2664
2325 wlist_del (&anfds[w->fd].head, (WL)w); 2665 wlist_del (&anfds[w->fd].head, (WL)w);
2326 ev_stop (EV_A_ (W)w); 2666 ev_stop (EV_A_ (W)w);
2327 2667
2328 fd_change (EV_A_ w->fd, 1); 2668 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2329 2669
2330 EV_FREQUENT_CHECK; 2670 EV_FREQUENT_CHECK;
2331} 2671}
2332 2672
2333void noinline 2673void noinline
… …
2375 timers [active] = timers [timercnt + HEAP0]; 2715 timers [active] = timers [timercnt + HEAP0];
2376 adjustheap (timers, timercnt, active); 2716 adjustheap (timers, timercnt, active);
2377 } 2717 }
2378 } 2718 }
2379 2719
2380 EV_FREQUENT_CHECK;
2381
2382 ev_at (w) -= mn_now; 2720 ev_at (w) -= mn_now;
2383 2721
2384 ev_stop (EV_A_ (W)w); 2722 ev_stop (EV_A_ (W)w);
2723
2724 EV_FREQUENT_CHECK;
2385} 2725}
2386 2726
2387void noinline 2727void noinline
2388ev_timer_again (EV_P_ ev_timer *w) 2728ev_timer_again (EV_P_ ev_timer *w)
2389{ 2729{
… …
2407 } 2747 }
2408 2748
2409 EV_FREQUENT_CHECK; 2749 EV_FREQUENT_CHECK;
2410} 2750}
2411 2751
2752ev_tstamp
2753ev_timer_remaining (EV_P_ ev_timer *w)
2754{
2755 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2756}
2757
2412#if EV_PERIODIC_ENABLE 2758#if EV_PERIODIC_ENABLE
2413void noinline 2759void noinline
2414ev_periodic_start (EV_P_ ev_periodic *w) 2760ev_periodic_start (EV_P_ ev_periodic *w)
2415{ 2761{
2416 if (expect_false (ev_is_active (w))) 2762 if (expect_false (ev_is_active (w)))
… …
2462 periodics [active] = periodics [periodiccnt + HEAP0]; 2808 periodics [active] = periodics [periodiccnt + HEAP0];
2463 adjustheap (periodics, periodiccnt, active); 2809 adjustheap (periodics, periodiccnt, active);
2464 } 2810 }
2465 } 2811 }
2466 2812
2467 EV_FREQUENT_CHECK;
2468
2469 ev_stop (EV_A_ (W)w); 2813 ev_stop (EV_A_ (W)w);
2814
2815 EV_FREQUENT_CHECK;
2470} 2816}
2471 2817
2472void noinline 2818void noinline
2473ev_periodic_again (EV_P_ ev_periodic *w) 2819ev_periodic_again (EV_P_ ev_periodic *w)
2474{ 2820{
… …
2480 2826
2481#ifndef SA_RESTART 2827#ifndef SA_RESTART
2482# define SA_RESTART 0 2828# define SA_RESTART 0
2483#endif 2829#endif
2484 2830
2831#if EV_SIGNAL_ENABLE
2832
2485void noinline 2833void noinline
2486ev_signal_start (EV_P_ ev_signal *w) 2834ev_signal_start (EV_P_ ev_signal *w)
2487{ 2835{
2488#if EV_MULTIPLICITY
2489 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2490#endif
2491 if (expect_false (ev_is_active (w))) 2836 if (expect_false (ev_is_active (w)))
2492 return; 2837 return;
2493 2838
2494 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 2839 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2495 2840
2496 evpipe_init (EV_A); 2841#if EV_MULTIPLICITY
2842 assert (("libev: a signal must not be attached to two different loops",
2843 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2497 2844
2498 EV_FREQUENT_CHECK; 2845 signals [w->signum - 1].loop = EV_A;
2846#endif
2499 2847
2848 EV_FREQUENT_CHECK;
2849
2850#if EV_USE_SIGNALFD
2851 if (sigfd == -2)
2500 { 2852 {
2501#ifndef _WIN32 2853 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2502 sigset_t full, prev; 2854 if (sigfd < 0 && errno == EINVAL)
2503 sigfillset (&full); 2855 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2504 sigprocmask (SIG_SETMASK, &full, &prev);
2505#endif
2506 2856
2507 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 2857 if (sigfd >= 0)
2858 {
2859 fd_intern (sigfd); /* doing it twice will not hurt */
2508 2860
2509#ifndef _WIN32 2861 sigemptyset (&sigfd_set);
2510 sigprocmask (SIG_SETMASK, &prev, 0); 2862
2511#endif 2863 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2864 ev_set_priority (&sigfd_w, EV_MAXPRI);
2865 ev_io_start (EV_A_ &sigfd_w);
2866 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2867 }
2512 } 2868 }
2869
2870 if (sigfd >= 0)
2871 {
2872 /* TODO: check .head */
2873 sigaddset (&sigfd_set, w->signum);
2874 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2875
2876 signalfd (sigfd, &sigfd_set, 0);
2877 }
2878#endif
2513 2879
2514 ev_start (EV_A_ (W)w, 1); 2880 ev_start (EV_A_ (W)w, 1);
2515 wlist_add (&signals [w->signum - 1].head, (WL)w); 2881 wlist_add (&signals [w->signum - 1].head, (WL)w);
2516 2882
2517 if (!((WL)w)->next) 2883 if (!((WL)w)->next)
2884# if EV_USE_SIGNALFD
2885 if (sigfd < 0) /*TODO*/
2886# endif
2518 { 2887 {
2519#if _WIN32 2888# ifdef _WIN32
2889 evpipe_init (EV_A);
2890
2520 signal (w->signum, ev_sighandler); 2891 signal (w->signum, ev_sighandler);
2521#else 2892# else
2522 struct sigaction sa; 2893 struct sigaction sa;
2894
2895 evpipe_init (EV_A);
2896
2523 sa.sa_handler = ev_sighandler; 2897 sa.sa_handler = ev_sighandler;
2524 sigfillset (&sa.sa_mask); 2898 sigfillset (&sa.sa_mask);
2525 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2899 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2526 sigaction (w->signum, &sa, 0); 2900 sigaction (w->signum, &sa, 0);
2901
2902 if (origflags & EVFLAG_NOSIGMASK)
2903 {
2904 sigemptyset (&sa.sa_mask);
2905 sigaddset (&sa.sa_mask, w->signum);
2906 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2907 }
2527#endif 2908#endif
2528 } 2909 }
2529 2910
2530 EV_FREQUENT_CHECK; 2911 EV_FREQUENT_CHECK;
2531} 2912}
2532 2913
2533void noinline 2914void noinline
… …
2541 2922
2542 wlist_del (&signals [w->signum - 1].head, (WL)w); 2923 wlist_del (&signals [w->signum - 1].head, (WL)w);
2543 ev_stop (EV_A_ (W)w); 2924 ev_stop (EV_A_ (W)w);
2544 2925
2545 if (!signals [w->signum - 1].head) 2926 if (!signals [w->signum - 1].head)
2927 {
2928#if EV_MULTIPLICITY
2929 signals [w->signum - 1].loop = 0; /* unattach from signal */
2930#endif
2931#if EV_USE_SIGNALFD
2932 if (sigfd >= 0)
2933 {
2934 sigset_t ss;
2935
2936 sigemptyset (&ss);
2937 sigaddset (&ss, w->signum);
2938 sigdelset (&sigfd_set, w->signum);
2939
2940 signalfd (sigfd, &sigfd_set, 0);
2941 sigprocmask (SIG_UNBLOCK, &ss, 0);
2942 }
2943 else
2944#endif
2546 signal (w->signum, SIG_DFL); 2945 signal (w->signum, SIG_DFL);
2946 }
2547 2947
2548 EV_FREQUENT_CHECK; 2948 EV_FREQUENT_CHECK;
2549} 2949}
2950
2951#endif
2952
2953#if EV_CHILD_ENABLE
2550 2954
2551void 2955void
2552ev_child_start (EV_P_ ev_child *w) 2956ev_child_start (EV_P_ ev_child *w)
2553{ 2957{
2554#if EV_MULTIPLICITY 2958#if EV_MULTIPLICITY
… …
2558 return; 2962 return;
2559 2963
2560 EV_FREQUENT_CHECK; 2964 EV_FREQUENT_CHECK;
2561 2965
2562 ev_start (EV_A_ (W)w, 1); 2966 ev_start (EV_A_ (W)w, 1);
2563 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2967 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2564 2968
2565 EV_FREQUENT_CHECK; 2969 EV_FREQUENT_CHECK;
2566} 2970}
2567 2971
2568void 2972void
… …
2572 if (expect_false (!ev_is_active (w))) 2976 if (expect_false (!ev_is_active (w)))
2573 return; 2977 return;
2574 2978
2575 EV_FREQUENT_CHECK; 2979 EV_FREQUENT_CHECK;
2576 2980
2577 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2981 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2578 ev_stop (EV_A_ (W)w); 2982 ev_stop (EV_A_ (W)w);
2579 2983
2580 EV_FREQUENT_CHECK; 2984 EV_FREQUENT_CHECK;
2581} 2985}
2986
2987#endif
2582 2988
2583#if EV_STAT_ENABLE 2989#if EV_STAT_ENABLE
2584 2990
2585# ifdef _WIN32 2991# ifdef _WIN32
2586# undef lstat 2992# undef lstat
… …
2592#define MIN_STAT_INTERVAL 0.1074891 2998#define MIN_STAT_INTERVAL 0.1074891
2593 2999
2594static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3000static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2595 3001
2596#if EV_USE_INOTIFY 3002#if EV_USE_INOTIFY
2597# define EV_INOTIFY_BUFSIZE 8192 3003
3004/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3005# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2598 3006
2599static void noinline 3007static void noinline
2600infy_add (EV_P_ ev_stat *w) 3008infy_add (EV_P_ ev_stat *w)
2601{ 3009{
2602 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3010 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2603 3011
2604 if (w->wd < 0) 3012 if (w->wd >= 0)
3013 {
3014 struct statfs sfs;
3015
3016 /* now local changes will be tracked by inotify, but remote changes won't */
3017 /* unless the filesystem is known to be local, we therefore still poll */
3018 /* also do poll on <2.6.25, but with normal frequency */
3019
3020 if (!fs_2625)
3021 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3022 else if (!statfs (w->path, &sfs)
3023 && (sfs.f_type == 0x1373 /* devfs */
3024 || sfs.f_type == 0xEF53 /* ext2/3 */
3025 || sfs.f_type == 0x3153464a /* jfs */
3026 || sfs.f_type == 0x52654973 /* reiser3 */
3027 || sfs.f_type == 0x01021994 /* tempfs */
3028 || sfs.f_type == 0x58465342 /* xfs */))
3029 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3030 else
3031 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2605 { 3032 }
3033 else
3034 {
3035 /* can't use inotify, continue to stat */
2606 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3036 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2607 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2608 3037
2609 /* monitor some parent directory for speedup hints */ 3038 /* if path is not there, monitor some parent directory for speedup hints */
2610 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3039 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2611 /* but an efficiency issue only */ 3040 /* but an efficiency issue only */
2612 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3041 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2613 { 3042 {
2614 char path [4096]; 3043 char path [4096];
… …
2630 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3059 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2631 } 3060 }
2632 } 3061 }
2633 3062
2634 if (w->wd >= 0) 3063 if (w->wd >= 0)
2635 {
2636 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3064 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2637 3065
2638 /* now local changes will be tracked by inotify, but remote changes won't */ 3066 /* now re-arm timer, if required */
2639 /* unless the filesystem it known to be local, we therefore still poll */ 3067 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2640 /* also do poll on <2.6.25, but with normal frequency */
2641 struct statfs sfs;
2642
2643 if (fs_2625 && !statfs (w->path, &sfs))
2644 if (sfs.f_type == 0x1373 /* devfs */
2645 || sfs.f_type == 0xEF53 /* ext2/3 */
2646 || sfs.f_type == 0x3153464a /* jfs */
2647 || sfs.f_type == 0x52654973 /* reiser3 */
2648 || sfs.f_type == 0x01021994 /* tempfs */
2649 || sfs.f_type == 0x58465342 /* xfs */)
2650 return;
2651
2652 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2653 ev_timer_again (EV_A_ &w->timer); 3068 ev_timer_again (EV_A_ &w->timer);
2654 } 3069 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2655} 3070}
2656 3071
2657static void noinline 3072static void noinline
2658infy_del (EV_P_ ev_stat *w) 3073infy_del (EV_P_ ev_stat *w)
2659{ 3074{
… …
2662 3077
2663 if (wd < 0) 3078 if (wd < 0)
2664 return; 3079 return;
2665 3080
2666 w->wd = -2; 3081 w->wd = -2;
2667 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3082 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2668 wlist_del (&fs_hash [slot].head, (WL)w); 3083 wlist_del (&fs_hash [slot].head, (WL)w);
2669 3084
2670 /* remove this watcher, if others are watching it, they will rearm */ 3085 /* remove this watcher, if others are watching it, they will rearm */
2671 inotify_rm_watch (fs_fd, wd); 3086 inotify_rm_watch (fs_fd, wd);
2672} 3087}
… …
2674static void noinline 3089static void noinline
2675infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3090infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2676{ 3091{
2677 if (slot < 0) 3092 if (slot < 0)
2678 /* overflow, need to check for all hash slots */ 3093 /* overflow, need to check for all hash slots */
2679 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3094 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2680 infy_wd (EV_A_ slot, wd, ev); 3095 infy_wd (EV_A_ slot, wd, ev);
2681 else 3096 else
2682 { 3097 {
2683 WL w_; 3098 WL w_;
2684 3099
2685 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3100 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2686 { 3101 {
2687 ev_stat *w = (ev_stat *)w_; 3102 ev_stat *w = (ev_stat *)w_;
2688 w_ = w_->next; /* lets us remove this watcher and all before it */ 3103 w_ = w_->next; /* lets us remove this watcher and all before it */
2689 3104
2690 if (w->wd == wd || wd == -1) 3105 if (w->wd == wd || wd == -1)
2691 { 3106 {
2692 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3107 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2693 { 3108 {
2694 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3109 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2695 w->wd = -1; 3110 w->wd = -1;
2696 infy_add (EV_A_ w); /* re-add, no matter what */ 3111 infy_add (EV_A_ w); /* re-add, no matter what */
2697 } 3112 }
2698 3113
2699 stat_timer_cb (EV_A_ &w->timer, 0); 3114 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2704 3119
2705static void 3120static void
2706infy_cb (EV_P_ ev_io *w, int revents) 3121infy_cb (EV_P_ ev_io *w, int revents)
2707{ 3122{
2708 char buf [EV_INOTIFY_BUFSIZE]; 3123 char buf [EV_INOTIFY_BUFSIZE];
2709 struct inotify_event *ev = (struct inotify_event *)buf;
2710 int ofs; 3124 int ofs;
2711 int len = read (fs_fd, buf, sizeof (buf)); 3125 int len = read (fs_fd, buf, sizeof (buf));
2712 3126
2713 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3127 for (ofs = 0; ofs < len; )
3128 {
3129 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2714 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3130 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3131 ofs += sizeof (struct inotify_event) + ev->len;
3132 }
2715} 3133}
2716 3134
2717inline_size void 3135inline_size void
2718check_2625 (EV_P) 3136ev_check_2625 (EV_P)
2719{ 3137{
2720 /* kernels < 2.6.25 are borked 3138 /* kernels < 2.6.25 are borked
2721 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3139 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2722 */ 3140 */
2723 struct utsname buf; 3141 if (ev_linux_version () < 0x020619)
2724 int major, minor, micro;
2725
2726 if (uname (&buf))
2727 return; 3142 return;
2728 3143
2729 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2730 return;
2731
2732 if (major < 2
2733 || (major == 2 && minor < 6)
2734 || (major == 2 && minor == 6 && micro < 25))
2735 return;
2736
2737 fs_2625 = 1; 3144 fs_2625 = 1;
3145}
3146
3147inline_size int
3148infy_newfd (void)
3149{
3150#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3151 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3152 if (fd >= 0)
3153 return fd;
3154#endif
3155 return inotify_init ();
2738} 3156}
2739 3157
2740inline_size void 3158inline_size void
2741infy_init (EV_P) 3159infy_init (EV_P)
2742{ 3160{
2743 if (fs_fd != -2) 3161 if (fs_fd != -2)
2744 return; 3162 return;
2745 3163
2746 fs_fd = -1; 3164 fs_fd = -1;
2747 3165
2748 check_2625 (EV_A); 3166 ev_check_2625 (EV_A);
2749 3167
2750 fs_fd = inotify_init (); 3168 fs_fd = infy_newfd ();
2751 3169
2752 if (fs_fd >= 0) 3170 if (fs_fd >= 0)
2753 { 3171 {
3172 fd_intern (fs_fd);
2754 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3173 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2755 ev_set_priority (&fs_w, EV_MAXPRI); 3174 ev_set_priority (&fs_w, EV_MAXPRI);
2756 ev_io_start (EV_A_ &fs_w); 3175 ev_io_start (EV_A_ &fs_w);
3176 ev_unref (EV_A);
2757 } 3177 }
2758} 3178}
2759 3179
2760inline_size void 3180inline_size void
2761infy_fork (EV_P) 3181infy_fork (EV_P)
… …
2763 int slot; 3183 int slot;
2764 3184
2765 if (fs_fd < 0) 3185 if (fs_fd < 0)
2766 return; 3186 return;
2767 3187
3188 ev_ref (EV_A);
3189 ev_io_stop (EV_A_ &fs_w);
2768 close (fs_fd); 3190 close (fs_fd);
2769 fs_fd = inotify_init (); 3191 fs_fd = infy_newfd ();
2770 3192
3193 if (fs_fd >= 0)
3194 {
3195 fd_intern (fs_fd);
3196 ev_io_set (&fs_w, fs_fd, EV_READ);
3197 ev_io_start (EV_A_ &fs_w);
3198 ev_unref (EV_A);
3199 }
3200
2771 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3201 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2772 { 3202 {
2773 WL w_ = fs_hash [slot].head; 3203 WL w_ = fs_hash [slot].head;
2774 fs_hash [slot].head = 0; 3204 fs_hash [slot].head = 0;
2775 3205
2776 while (w_) 3206 while (w_)
… …
2781 w->wd = -1; 3211 w->wd = -1;
2782 3212
2783 if (fs_fd >= 0) 3213 if (fs_fd >= 0)
2784 infy_add (EV_A_ w); /* re-add, no matter what */ 3214 infy_add (EV_A_ w); /* re-add, no matter what */
2785 else 3215 else
3216 {
3217 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3218 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2786 ev_timer_again (EV_A_ &w->timer); 3219 ev_timer_again (EV_A_ &w->timer);
3220 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3221 }
2787 } 3222 }
2788 } 3223 }
2789} 3224}
2790 3225
2791#endif 3226#endif
… …
2808static void noinline 3243static void noinline
2809stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3244stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2810{ 3245{
2811 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3246 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2812 3247
2813 /* we copy this here each the time so that */ 3248 ev_statdata prev = w->attr;
2814 /* prev has the old value when the callback gets invoked */
2815 w->prev = w->attr;
2816 ev_stat_stat (EV_A_ w); 3249 ev_stat_stat (EV_A_ w);
2817 3250
2818 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3251 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2819 if ( 3252 if (
2820 w->prev.st_dev != w->attr.st_dev 3253 prev.st_dev != w->attr.st_dev
2821 || w->prev.st_ino != w->attr.st_ino 3254 || prev.st_ino != w->attr.st_ino
2822 || w->prev.st_mode != w->attr.st_mode 3255 || prev.st_mode != w->attr.st_mode
2823 || w->prev.st_nlink != w->attr.st_nlink 3256 || prev.st_nlink != w->attr.st_nlink
2824 || w->prev.st_uid != w->attr.st_uid 3257 || prev.st_uid != w->attr.st_uid
2825 || w->prev.st_gid != w->attr.st_gid 3258 || prev.st_gid != w->attr.st_gid
2826 || w->prev.st_rdev != w->attr.st_rdev 3259 || prev.st_rdev != w->attr.st_rdev
2827 || w->prev.st_size != w->attr.st_size 3260 || prev.st_size != w->attr.st_size
2828 || w->prev.st_atime != w->attr.st_atime 3261 || prev.st_atime != w->attr.st_atime
2829 || w->prev.st_mtime != w->attr.st_mtime 3262 || prev.st_mtime != w->attr.st_mtime
2830 || w->prev.st_ctime != w->attr.st_ctime 3263 || prev.st_ctime != w->attr.st_ctime
2831 ) { 3264 ) {
3265 /* we only update w->prev on actual differences */
3266 /* in case we test more often than invoke the callback, */
3267 /* to ensure that prev is always different to attr */
3268 w->prev = prev;
3269
2832 #if EV_USE_INOTIFY 3270 #if EV_USE_INOTIFY
2833 if (fs_fd >= 0) 3271 if (fs_fd >= 0)
2834 { 3272 {
2835 infy_del (EV_A_ w); 3273 infy_del (EV_A_ w);
2836 infy_add (EV_A_ w); 3274 infy_add (EV_A_ w);
… …
2861 3299
2862 if (fs_fd >= 0) 3300 if (fs_fd >= 0)
2863 infy_add (EV_A_ w); 3301 infy_add (EV_A_ w);
2864 else 3302 else
2865#endif 3303#endif
3304 {
2866 ev_timer_again (EV_A_ &w->timer); 3305 ev_timer_again (EV_A_ &w->timer);
3306 ev_unref (EV_A);
3307 }
2867 3308
2868 ev_start (EV_A_ (W)w, 1); 3309 ev_start (EV_A_ (W)w, 1);
2869 3310
2870 EV_FREQUENT_CHECK; 3311 EV_FREQUENT_CHECK;
2871} 3312}
… …
2880 EV_FREQUENT_CHECK; 3321 EV_FREQUENT_CHECK;
2881 3322
2882#if EV_USE_INOTIFY 3323#if EV_USE_INOTIFY
2883 infy_del (EV_A_ w); 3324 infy_del (EV_A_ w);
2884#endif 3325#endif
3326
3327 if (ev_is_active (&w->timer))
3328 {
3329 ev_ref (EV_A);
2885 ev_timer_stop (EV_A_ &w->timer); 3330 ev_timer_stop (EV_A_ &w->timer);
3331 }
2886 3332
2887 ev_stop (EV_A_ (W)w); 3333 ev_stop (EV_A_ (W)w);
2888 3334
2889 EV_FREQUENT_CHECK; 3335 EV_FREQUENT_CHECK;
2890} 3336}
… …
2935 3381
2936 EV_FREQUENT_CHECK; 3382 EV_FREQUENT_CHECK;
2937} 3383}
2938#endif 3384#endif
2939 3385
3386#if EV_PREPARE_ENABLE
2940void 3387void
2941ev_prepare_start (EV_P_ ev_prepare *w) 3388ev_prepare_start (EV_P_ ev_prepare *w)
2942{ 3389{
2943 if (expect_false (ev_is_active (w))) 3390 if (expect_false (ev_is_active (w)))
2944 return; 3391 return;
… …
2970 3417
2971 ev_stop (EV_A_ (W)w); 3418 ev_stop (EV_A_ (W)w);
2972 3419
2973 EV_FREQUENT_CHECK; 3420 EV_FREQUENT_CHECK;
2974} 3421}
3422#endif
2975 3423
3424#if EV_CHECK_ENABLE
2976void 3425void
2977ev_check_start (EV_P_ ev_check *w) 3426ev_check_start (EV_P_ ev_check *w)
2978{ 3427{
2979 if (expect_false (ev_is_active (w))) 3428 if (expect_false (ev_is_active (w)))
2980 return; 3429 return;
… …
3006 3455
3007 ev_stop (EV_A_ (W)w); 3456 ev_stop (EV_A_ (W)w);
3008 3457
3009 EV_FREQUENT_CHECK; 3458 EV_FREQUENT_CHECK;
3010} 3459}
3460#endif
3011 3461
3012#if EV_EMBED_ENABLE 3462#if EV_EMBED_ENABLE
3013void noinline 3463void noinline
3014ev_embed_sweep (EV_P_ ev_embed *w) 3464ev_embed_sweep (EV_P_ ev_embed *w)
3015{ 3465{
3016 ev_loop (w->other, EVLOOP_NONBLOCK); 3466 ev_run (w->other, EVRUN_NOWAIT);
3017} 3467}
3018 3468
3019static void 3469static void
3020embed_io_cb (EV_P_ ev_io *io, int revents) 3470embed_io_cb (EV_P_ ev_io *io, int revents)
3021{ 3471{
3022 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3472 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3023 3473
3024 if (ev_cb (w)) 3474 if (ev_cb (w))
3025 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3475 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3026 else 3476 else
3027 ev_loop (w->other, EVLOOP_NONBLOCK); 3477 ev_run (w->other, EVRUN_NOWAIT);
3028} 3478}
3029 3479
3030static void 3480static void
3031embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3481embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3032{ 3482{
3033 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3483 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3034 3484
3035 { 3485 {
3036 struct ev_loop *loop = w->other; 3486 EV_P = w->other;
3037 3487
3038 while (fdchangecnt) 3488 while (fdchangecnt)
3039 { 3489 {
3040 fd_reify (EV_A); 3490 fd_reify (EV_A);
3041 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3491 ev_run (EV_A_ EVRUN_NOWAIT);
3042 } 3492 }
3043 } 3493 }
3044} 3494}
3045 3495
3046static void 3496static void
… …
3049 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3499 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3050 3500
3051 ev_embed_stop (EV_A_ w); 3501 ev_embed_stop (EV_A_ w);
3052 3502
3053 { 3503 {
3054 struct ev_loop *loop = w->other; 3504 EV_P = w->other;
3055 3505
3056 ev_loop_fork (EV_A); 3506 ev_loop_fork (EV_A);
3057 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3507 ev_run (EV_A_ EVRUN_NOWAIT);
3058 } 3508 }
3059 3509
3060 ev_embed_start (EV_A_ w); 3510 ev_embed_start (EV_A_ w);
3061} 3511}
3062 3512
… …
3073{ 3523{
3074 if (expect_false (ev_is_active (w))) 3524 if (expect_false (ev_is_active (w)))
3075 return; 3525 return;
3076 3526
3077 { 3527 {
3078 struct ev_loop *loop = w->other; 3528 EV_P = w->other;
3079 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3529 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3080 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3530 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3081 } 3531 }
3082 3532
3083 EV_FREQUENT_CHECK; 3533 EV_FREQUENT_CHECK;
… …
3110 3560
3111 ev_io_stop (EV_A_ &w->io); 3561 ev_io_stop (EV_A_ &w->io);
3112 ev_prepare_stop (EV_A_ &w->prepare); 3562 ev_prepare_stop (EV_A_ &w->prepare);
3113 ev_fork_stop (EV_A_ &w->fork); 3563 ev_fork_stop (EV_A_ &w->fork);
3114 3564
3565 ev_stop (EV_A_ (W)w);
3566
3115 EV_FREQUENT_CHECK; 3567 EV_FREQUENT_CHECK;
3116} 3568}
3117#endif 3569#endif
3118 3570
3119#if EV_FORK_ENABLE 3571#if EV_FORK_ENABLE
… …
3152 3604
3153 EV_FREQUENT_CHECK; 3605 EV_FREQUENT_CHECK;
3154} 3606}
3155#endif 3607#endif
3156 3608
3157#if EV_ASYNC_ENABLE 3609#if EV_CLEANUP_ENABLE
3158void 3610void
3159ev_async_start (EV_P_ ev_async *w) 3611ev_cleanup_start (EV_P_ ev_cleanup *w)
3160{ 3612{
3161 if (expect_false (ev_is_active (w))) 3613 if (expect_false (ev_is_active (w)))
3162 return; 3614 return;
3615
3616 EV_FREQUENT_CHECK;
3617
3618 ev_start (EV_A_ (W)w, ++cleanupcnt);
3619 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3620 cleanups [cleanupcnt - 1] = w;
3621
3622 /* cleanup watchers should never keep a refcount on the loop */
3623 ev_unref (EV_A);
3624 EV_FREQUENT_CHECK;
3625}
3626
3627void
3628ev_cleanup_stop (EV_P_ ev_cleanup *w)
3629{
3630 clear_pending (EV_A_ (W)w);
3631 if (expect_false (!ev_is_active (w)))
3632 return;
3633
3634 EV_FREQUENT_CHECK;
3635 ev_ref (EV_A);
3636
3637 {
3638 int active = ev_active (w);
3639
3640 cleanups [active - 1] = cleanups [--cleanupcnt];
3641 ev_active (cleanups [active - 1]) = active;
3642 }
3643
3644 ev_stop (EV_A_ (W)w);
3645
3646 EV_FREQUENT_CHECK;
3647}
3648#endif
3649
3650#if EV_ASYNC_ENABLE
3651void
3652ev_async_start (EV_P_ ev_async *w)
3653{
3654 if (expect_false (ev_is_active (w)))
3655 return;
3656
3657 w->sent = 0;
3163 3658
3164 evpipe_init (EV_A); 3659 evpipe_init (EV_A);
3165 3660
3166 EV_FREQUENT_CHECK; 3661 EV_FREQUENT_CHECK;
3167 3662
… …
3195 3690
3196void 3691void
3197ev_async_send (EV_P_ ev_async *w) 3692ev_async_send (EV_P_ ev_async *w)
3198{ 3693{
3199 w->sent = 1; 3694 w->sent = 1;
3200 evpipe_write (EV_A_ &gotasync); 3695 evpipe_write (EV_A_ &async_pending);
3201} 3696}
3202#endif 3697#endif
3203 3698
3204/*****************************************************************************/ 3699/*****************************************************************************/
3205 3700
… …
3245{ 3740{
3246 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3741 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3247 3742
3248 if (expect_false (!once)) 3743 if (expect_false (!once))
3249 { 3744 {
3250 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3745 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3251 return; 3746 return;
3252 } 3747 }
3253 3748
3254 once->cb = cb; 3749 once->cb = cb;
3255 once->arg = arg; 3750 once->arg = arg;
… …
3342 if (types & EV_ASYNC) 3837 if (types & EV_ASYNC)
3343 for (i = asynccnt; i--; ) 3838 for (i = asynccnt; i--; )
3344 cb (EV_A_ EV_ASYNC, asyncs [i]); 3839 cb (EV_A_ EV_ASYNC, asyncs [i]);
3345#endif 3840#endif
3346 3841
3842#if EV_PREPARE_ENABLE
3347 if (types & EV_PREPARE) 3843 if (types & EV_PREPARE)
3348 for (i = preparecnt; i--; ) 3844 for (i = preparecnt; i--; )
3349#if EV_EMBED_ENABLE 3845# if EV_EMBED_ENABLE
3350 if (ev_cb (prepares [i]) != embed_prepare_cb) 3846 if (ev_cb (prepares [i]) != embed_prepare_cb)
3351#endif 3847# endif
3352 cb (EV_A_ EV_PREPARE, prepares [i]); 3848 cb (EV_A_ EV_PREPARE, prepares [i]);
3849#endif
3353 3850
3851#if EV_CHECK_ENABLE
3354 if (types & EV_CHECK) 3852 if (types & EV_CHECK)
3355 for (i = checkcnt; i--; ) 3853 for (i = checkcnt; i--; )
3356 cb (EV_A_ EV_CHECK, checks [i]); 3854 cb (EV_A_ EV_CHECK, checks [i]);
3855#endif
3357 3856
3857#if EV_SIGNAL_ENABLE
3358 if (types & EV_SIGNAL) 3858 if (types & EV_SIGNAL)
3359 for (i = 0; i < signalmax; ++i) 3859 for (i = 0; i < EV_NSIG - 1; ++i)
3360 for (wl = signals [i].head; wl; ) 3860 for (wl = signals [i].head; wl; )
3361 { 3861 {
3362 wn = wl->next; 3862 wn = wl->next;
3363 cb (EV_A_ EV_SIGNAL, wl); 3863 cb (EV_A_ EV_SIGNAL, wl);
3364 wl = wn; 3864 wl = wn;
3365 } 3865 }
3866#endif
3366 3867
3868#if EV_CHILD_ENABLE
3367 if (types & EV_CHILD) 3869 if (types & EV_CHILD)
3368 for (i = EV_PID_HASHSIZE; i--; ) 3870 for (i = (EV_PID_HASHSIZE); i--; )
3369 for (wl = childs [i]; wl; ) 3871 for (wl = childs [i]; wl; )
3370 { 3872 {
3371 wn = wl->next; 3873 wn = wl->next;
3372 cb (EV_A_ EV_CHILD, wl); 3874 cb (EV_A_ EV_CHILD, wl);
3373 wl = wn; 3875 wl = wn;
3374 } 3876 }
3877#endif
3375/* EV_STAT 0x00001000 /* stat data changed */ 3878/* EV_STAT 0x00001000 /* stat data changed */
3376/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3879/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3377} 3880}
3378#endif 3881#endif
3379 3882
3380#if EV_MULTIPLICITY 3883#if EV_MULTIPLICITY
3381 #include "ev_wrap.h" 3884 #include "ev_wrap.h"
3382#endif 3885#endif
3383 3886
3384#ifdef __cplusplus 3887EV_CPP(})
3385}
3386#endif
3387 3888

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