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Comparing libev/ev.c (file contents):
Revision 1.291 by root, Mon Jun 29 04:44:18 2009 UTC vs.
Revision 1.365 by root, Sun Oct 31 22:01:20 2010 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
… …
77# ifndef EV_USE_REALTIME 73# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 74# define EV_USE_REALTIME 0
79# endif 75# endif
80# endif 76# endif
81 77
78# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 79# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 80# define EV_USE_NANOSLEEP EV_FEATURE_OS
81# endif
85# else 82# else
83# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 84# define EV_USE_NANOSLEEP 0
85# endif
86
87# if HAVE_SELECT && HAVE_SYS_SELECT_H
88# ifndef EV_USE_SELECT
89# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 90# endif
91# else
92# undef EV_USE_SELECT
93# define EV_USE_SELECT 0
88# endif 94# endif
89 95
96# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 97# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 98# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 99# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 100# else
101# undef EV_USE_POLL
102# define EV_USE_POLL 0 102# define EV_USE_POLL 0
103# endif
104# endif 103# endif
105 104
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 106# ifndef EV_USE_EPOLL
109# else 107# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 108# endif
109# else
110# undef EV_USE_EPOLL
111# define EV_USE_EPOLL 0
112# endif 112# endif
113 113
114# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 115# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 117# endif
118# else
119# undef EV_USE_KQUEUE
120# define EV_USE_KQUEUE 0
120# endif 121# endif
121 122
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 123# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 124# ifndef EV_USE_PORT
125# else 125# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 126# endif
127# else
128# undef EV_USE_PORT
129# define EV_USE_PORT 0
128# endif 130# endif
129 131
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 132# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 133# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 135# endif
136# else
137# undef EV_USE_INOTIFY
138# define EV_USE_INOTIFY 0
136# endif 139# endif
137 140
141# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138# ifndef EV_USE_EVENTFD 142# ifndef EV_USE_SIGNALFD
139# if HAVE_EVENTFD 143# define EV_USE_SIGNALFD EV_FEATURE_OS
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# endif 144# endif
145# else
146# undef EV_USE_SIGNALFD
147# define EV_USE_SIGNALFD 0
148# endif
149
150# if HAVE_EVENTFD
151# ifndef EV_USE_EVENTFD
152# define EV_USE_EVENTFD EV_FEATURE_OS
153# endif
154# else
155# undef EV_USE_EVENTFD
156# define EV_USE_EVENTFD 0
144# endif 157# endif
145 158
146#endif 159#endif
147 160
148#include <math.h> 161#include <math.h>
149#include <stdlib.h> 162#include <stdlib.h>
163#include <string.h>
150#include <fcntl.h> 164#include <fcntl.h>
151#include <stddef.h> 165#include <stddef.h>
152 166
153#include <stdio.h> 167#include <stdio.h>
154 168
155#include <assert.h> 169#include <assert.h>
156#include <errno.h> 170#include <errno.h>
157#include <sys/types.h> 171#include <sys/types.h>
158#include <time.h> 172#include <time.h>
173#include <limits.h>
159 174
160#include <signal.h> 175#include <signal.h>
161 176
162#ifdef EV_H 177#ifdef EV_H
163# include EV_H 178# include EV_H
164#else 179#else
165# include "ev.h" 180# include "ev.h"
166#endif 181#endif
182
183EV_CPP(extern "C" {)
167 184
168#ifndef _WIN32 185#ifndef _WIN32
169# include <sys/time.h> 186# include <sys/time.h>
170# include <sys/wait.h> 187# include <sys/wait.h>
171# include <unistd.h> 188# include <unistd.h>
… …
174# define WIN32_LEAN_AND_MEAN 191# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 192# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 193# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 194# define EV_SELECT_IS_WINSOCKET 1
178# endif 195# endif
196# undef EV_AVOID_STDIO
179#endif 197#endif
198
199/* OS X, in its infinite idiocy, actually HARDCODES
200 * a limit of 1024 into their select. Where people have brains,
201 * OS X engineers apparently have a vacuum. Or maybe they were
202 * ordered to have a vacuum, or they do anything for money.
203 * This might help. Or not.
204 */
205#define _DARWIN_UNLIMITED_SELECT 1
180 206
181/* this block tries to deduce configuration from header-defined symbols and defaults */ 207/* this block tries to deduce configuration from header-defined symbols and defaults */
208
209/* try to deduce the maximum number of signals on this platform */
210#if defined (EV_NSIG)
211/* use what's provided */
212#elif defined (NSIG)
213# define EV_NSIG (NSIG)
214#elif defined(_NSIG)
215# define EV_NSIG (_NSIG)
216#elif defined (SIGMAX)
217# define EV_NSIG (SIGMAX+1)
218#elif defined (SIG_MAX)
219# define EV_NSIG (SIG_MAX+1)
220#elif defined (_SIG_MAX)
221# define EV_NSIG (_SIG_MAX+1)
222#elif defined (MAXSIG)
223# define EV_NSIG (MAXSIG+1)
224#elif defined (MAX_SIG)
225# define EV_NSIG (MAX_SIG+1)
226#elif defined (SIGARRAYSIZE)
227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
228#elif defined (_sys_nsig)
229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
230#else
231# error "unable to find value for NSIG, please report"
232/* to make it compile regardless, just remove the above line, */
233/* but consider reporting it, too! :) */
234# define EV_NSIG 65
235#endif
182 236
183#ifndef EV_USE_CLOCK_SYSCALL 237#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 238# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 240# else
187# define EV_USE_CLOCK_SYSCALL 0 241# define EV_USE_CLOCK_SYSCALL 0
188# endif 242# endif
189#endif 243#endif
190 244
191#ifndef EV_USE_MONOTONIC 245#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 247# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 248# else
195# define EV_USE_MONOTONIC 0 249# define EV_USE_MONOTONIC 0
196# endif 250# endif
197#endif 251#endif
198 252
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 254# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 255#endif
202 256
203#ifndef EV_USE_NANOSLEEP 257#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 258# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 259# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 260# else
207# define EV_USE_NANOSLEEP 0 261# define EV_USE_NANOSLEEP 0
208# endif 262# endif
209#endif 263#endif
210 264
211#ifndef EV_USE_SELECT 265#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 266# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 267#endif
214 268
215#ifndef EV_USE_POLL 269#ifndef EV_USE_POLL
216# ifdef _WIN32 270# ifdef _WIN32
217# define EV_USE_POLL 0 271# define EV_USE_POLL 0
218# else 272# else
219# define EV_USE_POLL 1 273# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 274# endif
221#endif 275#endif
222 276
223#ifndef EV_USE_EPOLL 277#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 279# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 280# else
227# define EV_USE_EPOLL 0 281# define EV_USE_EPOLL 0
228# endif 282# endif
229#endif 283#endif
230 284
… …
236# define EV_USE_PORT 0 290# define EV_USE_PORT 0
237#endif 291#endif
238 292
239#ifndef EV_USE_INOTIFY 293#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 295# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 296# else
243# define EV_USE_INOTIFY 0 297# define EV_USE_INOTIFY 0
244# endif 298# endif
245#endif 299#endif
246 300
247#ifndef EV_PID_HASHSIZE 301#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 302# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249# define EV_PID_HASHSIZE 1
250# else
251# define EV_PID_HASHSIZE 16
252# endif
253#endif 303#endif
254 304
255#ifndef EV_INOTIFY_HASHSIZE 305#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 306# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_INOTIFY_HASHSIZE 1
258# else
259# define EV_INOTIFY_HASHSIZE 16
260# endif
261#endif 307#endif
262 308
263#ifndef EV_USE_EVENTFD 309#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 311# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 312# else
267# define EV_USE_EVENTFD 0 313# define EV_USE_EVENTFD 0
314# endif
315#endif
316
317#ifndef EV_USE_SIGNALFD
318# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
319# define EV_USE_SIGNALFD EV_FEATURE_OS
320# else
321# define EV_USE_SIGNALFD 0
268# endif 322# endif
269#endif 323#endif
270 324
271#if 0 /* debugging */ 325#if 0 /* debugging */
272# define EV_VERIFY 3 326# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 327# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 328# define EV_HEAP_CACHE_AT 1
275#endif 329#endif
276 330
277#ifndef EV_VERIFY 331#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 332# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 333#endif
280 334
281#ifndef EV_USE_4HEAP 335#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 336# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 337#endif
284 338
285#ifndef EV_HEAP_CACHE_AT 339#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif 341#endif
288 342
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 343/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290/* which makes programs even slower. might work on other unices, too. */ 344/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 345#if EV_USE_CLOCK_SYSCALL
… …
300# endif 354# endif
301#endif 355#endif
302 356
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 357/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304 358
359#ifdef _AIX
360/* AIX has a completely broken poll.h header */
361# undef EV_USE_POLL
362# define EV_USE_POLL 0
363#endif
364
305#ifndef CLOCK_MONOTONIC 365#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 366# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 367# define EV_USE_MONOTONIC 0
308#endif 368#endif
309 369
… …
322# include <sys/select.h> 382# include <sys/select.h>
323# endif 383# endif
324#endif 384#endif
325 385
326#if EV_USE_INOTIFY 386#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 387# include <sys/statfs.h>
329# include <sys/inotify.h> 388# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 389/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 390# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 391# undef EV_USE_INOTIFY
… …
339#endif 398#endif
340 399
341#if EV_USE_EVENTFD 400#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 401/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 402# include <stdint.h>
344# ifdef __cplusplus 403# ifndef EFD_NONBLOCK
345extern "C" { 404# define EFD_NONBLOCK O_NONBLOCK
346# endif 405# endif
347int eventfd (unsigned int initval, int flags); 406# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 407# ifdef O_CLOEXEC
349} 408# define EFD_CLOEXEC O_CLOEXEC
409# else
410# define EFD_CLOEXEC 02000000
411# endif
350# endif 412# endif
413EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
414#endif
415
416#if EV_USE_SIGNALFD
417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
418# include <stdint.h>
419# ifndef SFD_NONBLOCK
420# define SFD_NONBLOCK O_NONBLOCK
421# endif
422# ifndef SFD_CLOEXEC
423# ifdef O_CLOEXEC
424# define SFD_CLOEXEC O_CLOEXEC
425# else
426# define SFD_CLOEXEC 02000000
427# endif
428# endif
429EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
430
431struct signalfd_siginfo
432{
433 uint32_t ssi_signo;
434 char pad[128 - sizeof (uint32_t)];
435};
351#endif 436#endif
352 437
353/**/ 438/**/
354 439
355#if EV_VERIFY >= 3 440#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 441# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 442#else
358# define EV_FREQUENT_CHECK do { } while (0) 443# define EV_FREQUENT_CHECK do { } while (0)
359#endif 444#endif
360 445
361/* 446/*
… …
368 */ 453 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 454#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
370 455
371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 456#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
372#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 457#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
373/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ 458
459#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
460#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
374 461
375#if __GNUC__ >= 4 462#if __GNUC__ >= 4
376# define expect(expr,value) __builtin_expect ((expr),(value)) 463# define expect(expr,value) __builtin_expect ((expr),(value))
377# define noinline __attribute__ ((noinline)) 464# define noinline __attribute__ ((noinline))
378#else 465#else
… …
385 472
386#define expect_false(expr) expect ((expr) != 0, 0) 473#define expect_false(expr) expect ((expr) != 0, 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 474#define expect_true(expr) expect ((expr) != 0, 1)
388#define inline_size static inline 475#define inline_size static inline
389 476
390#if EV_MINIMAL 477#if EV_FEATURE_CODE
478# define inline_speed static inline
479#else
391# define inline_speed static noinline 480# define inline_speed static noinline
481#endif
482
483#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
484
485#if EV_MINPRI == EV_MAXPRI
486# define ABSPRI(w) (((W)w), 0)
392#else 487#else
393# define inline_speed static inline
394#endif
395
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 488# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
489#endif
398 490
399#define EMPTY /* required for microsofts broken pseudo-c compiler */ 491#define EMPTY /* required for microsofts broken pseudo-c compiler */
400#define EMPTY2(a,b) /* used to suppress some warnings */ 492#define EMPTY2(a,b) /* used to suppress some warnings */
401 493
402typedef ev_watcher *W; 494typedef ev_watcher *W;
… …
406#define ev_active(w) ((W)(w))->active 498#define ev_active(w) ((W)(w))->active
407#define ev_at(w) ((WT)(w))->at 499#define ev_at(w) ((WT)(w))->at
408 500
409#if EV_USE_REALTIME 501#if EV_USE_REALTIME
410/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 502/* sig_atomic_t is used to avoid per-thread variables or locking but still */
411/* giving it a reasonably high chance of working on typical architetcures */ 503/* giving it a reasonably high chance of working on typical architectures */
412static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 504static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
413#endif 505#endif
414 506
415#if EV_USE_MONOTONIC 507#if EV_USE_MONOTONIC
416static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 508static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
417#endif 509#endif
418 510
511#ifndef EV_FD_TO_WIN32_HANDLE
512# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
513#endif
514#ifndef EV_WIN32_HANDLE_TO_FD
515# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
516#endif
517#ifndef EV_WIN32_CLOSE_FD
518# define EV_WIN32_CLOSE_FD(fd) close (fd)
519#endif
520
419#ifdef _WIN32 521#ifdef _WIN32
420# include "ev_win32.c" 522# include "ev_win32.c"
421#endif 523#endif
422 524
423/*****************************************************************************/ 525/*****************************************************************************/
526
527#ifdef __linux
528# include <sys/utsname.h>
529#endif
530
531static unsigned int noinline
532ev_linux_version (void)
533{
534#ifdef __linux
535 unsigned int v = 0;
536 struct utsname buf;
537 int i;
538 char *p = buf.release;
539
540 if (uname (&buf))
541 return 0;
542
543 for (i = 3+1; --i; )
544 {
545 unsigned int c = 0;
546
547 for (;;)
548 {
549 if (*p >= '0' && *p <= '9')
550 c = c * 10 + *p++ - '0';
551 else
552 {
553 p += *p == '.';
554 break;
555 }
556 }
557
558 v = (v << 8) | c;
559 }
560
561 return v;
562#else
563 return 0;
564#endif
565}
566
567/*****************************************************************************/
568
569#if EV_AVOID_STDIO
570static void noinline
571ev_printerr (const char *msg)
572{
573 write (STDERR_FILENO, msg, strlen (msg));
574}
575#endif
424 576
425static void (*syserr_cb)(const char *msg); 577static void (*syserr_cb)(const char *msg);
426 578
427void 579void
428ev_set_syserr_cb (void (*cb)(const char *msg)) 580ev_set_syserr_cb (void (*cb)(const char *msg))
… …
438 590
439 if (syserr_cb) 591 if (syserr_cb)
440 syserr_cb (msg); 592 syserr_cb (msg);
441 else 593 else
442 { 594 {
595#if EV_AVOID_STDIO
596 ev_printerr (msg);
597 ev_printerr (": ");
598 ev_printerr (strerror (errno));
599 ev_printerr ("\n");
600#else
443 perror (msg); 601 perror (msg);
602#endif
444 abort (); 603 abort ();
445 } 604 }
446} 605}
447 606
448static void * 607static void *
449ev_realloc_emul (void *ptr, long size) 608ev_realloc_emul (void *ptr, long size)
450{ 609{
610#if __GLIBC__
611 return realloc (ptr, size);
612#else
451 /* some systems, notably openbsd and darwin, fail to properly 613 /* some systems, notably openbsd and darwin, fail to properly
452 * 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
453 * the single unix specification, so work around them here. 615 * the single unix specification, so work around them here.
454 */ 616 */
455 617
456 if (size) 618 if (size)
457 return realloc (ptr, size); 619 return realloc (ptr, size);
458 620
459 free (ptr); 621 free (ptr);
460 return 0; 622 return 0;
623#endif
461} 624}
462 625
463static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 626static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
464 627
465void 628void
… …
473{ 636{
474 ptr = alloc (ptr, size); 637 ptr = alloc (ptr, size);
475 638
476 if (!ptr && size) 639 if (!ptr && size)
477 { 640 {
641#if EV_AVOID_STDIO
642 ev_printerr ("(libev) memory allocation failed, aborting.\n");
643#else
478 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 644 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
645#endif
479 abort (); 646 abort ();
480 } 647 }
481 648
482 return ptr; 649 return ptr;
483} 650}
… …
485#define ev_malloc(size) ev_realloc (0, (size)) 652#define ev_malloc(size) ev_realloc (0, (size))
486#define ev_free(ptr) ev_realloc ((ptr), 0) 653#define ev_free(ptr) ev_realloc ((ptr), 0)
487 654
488/*****************************************************************************/ 655/*****************************************************************************/
489 656
657/* set in reify when reification needed */
658#define EV_ANFD_REIFY 1
659
490/* file descriptor info structure */ 660/* file descriptor info structure */
491typedef struct 661typedef struct
492{ 662{
493 WL head; 663 WL head;
494 unsigned char events; /* the events watched for */ 664 unsigned char events; /* the events watched for */
495 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) */
496 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 */
497 unsigned char unused; 667 unsigned char unused;
498#if EV_USE_EPOLL 668#if EV_USE_EPOLL
499 unsigned int egen; /* generation counter to counter epoll bugs */ 669 unsigned int egen; /* generation counter to counter epoll bugs */
500#endif 670#endif
501#if EV_SELECT_IS_WINSOCKET 671#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
502 SOCKET handle; 672 SOCKET handle;
673#endif
674#if EV_USE_IOCP
675 OVERLAPPED or, ow;
503#endif 676#endif
504} ANFD; 677} ANFD;
505 678
506/* stores the pending event set for a given watcher */ 679/* stores the pending event set for a given watcher */
507typedef struct 680typedef struct
… …
562 735
563 static int ev_default_loop_ptr; 736 static int ev_default_loop_ptr;
564 737
565#endif 738#endif
566 739
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
567/*****************************************************************************/ 752/*****************************************************************************/
568 753
754#ifndef EV_HAVE_EV_TIME
569ev_tstamp 755ev_tstamp
570ev_time (void) 756ev_time (void)
571{ 757{
572#if EV_USE_REALTIME 758#if EV_USE_REALTIME
573 if (expect_true (have_realtime)) 759 if (expect_true (have_realtime))
… …
580 766
581 struct timeval tv; 767 struct timeval tv;
582 gettimeofday (&tv, 0); 768 gettimeofday (&tv, 0);
583 return tv.tv_sec + tv.tv_usec * 1e-6; 769 return tv.tv_sec + tv.tv_usec * 1e-6;
584} 770}
771#endif
585 772
586inline_size ev_tstamp 773inline_size ev_tstamp
587get_clock (void) 774get_clock (void)
588{ 775{
589#if EV_USE_MONOTONIC 776#if EV_USE_MONOTONIC
… …
612 if (delay > 0.) 799 if (delay > 0.)
613 { 800 {
614#if EV_USE_NANOSLEEP 801#if EV_USE_NANOSLEEP
615 struct timespec ts; 802 struct timespec ts;
616 803
617 ts.tv_sec = (time_t)delay; 804 EV_TS_SET (ts, delay);
618 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
619
620 nanosleep (&ts, 0); 805 nanosleep (&ts, 0);
621#elif defined(_WIN32) 806#elif defined(_WIN32)
622 Sleep ((unsigned long)(delay * 1e3)); 807 Sleep ((unsigned long)(delay * 1e3));
623#else 808#else
624 struct timeval tv; 809 struct timeval tv;
625 810
626 tv.tv_sec = (time_t)delay;
627 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
628
629 /* 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 */
630 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 812 /* something not guaranteed by newer posix versions, but guaranteed */
631 /* by older ones */ 813 /* by older ones */
814 EV_TV_SET (tv, delay);
632 select (0, 0, 0, 0, &tv); 815 select (0, 0, 0, 0, &tv);
633#endif 816#endif
634 } 817 }
635} 818}
636 819
637/*****************************************************************************/ 820/*****************************************************************************/
638 821
639#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 822#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
640 823
641/* find a suitable new size for the given array, */ 824/* find a suitable new size for the given array, */
642/* hopefully by rounding to a ncie-to-malloc size */ 825/* hopefully by rounding to a nice-to-malloc size */
643inline_size int 826inline_size int
644array_nextsize (int elem, int cur, int cnt) 827array_nextsize (int elem, int cur, int cnt)
645{ 828{
646 int ncur = cur + 1; 829 int ncur = cur + 1;
647 830
… …
743} 926}
744 927
745/*****************************************************************************/ 928/*****************************************************************************/
746 929
747inline_speed void 930inline_speed void
748fd_event (EV_P_ int fd, int revents) 931fd_event_nocheck (EV_P_ int fd, int revents)
749{ 932{
750 ANFD *anfd = anfds + fd; 933 ANFD *anfd = anfds + fd;
751 ev_io *w; 934 ev_io *w;
752 935
753 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 936 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
757 if (ev) 940 if (ev)
758 ev_feed_event (EV_A_ (W)w, ev); 941 ev_feed_event (EV_A_ (W)w, ev);
759 } 942 }
760} 943}
761 944
945/* do not submit kernel events for fds that have reify set */
946/* because that means they changed while we were polling for new events */
947inline_speed void
948fd_event (EV_P_ int fd, int revents)
949{
950 ANFD *anfd = anfds + fd;
951
952 if (expect_true (!anfd->reify))
953 fd_event_nocheck (EV_A_ fd, revents);
954}
955
762void 956void
763ev_feed_fd_event (EV_P_ int fd, int revents) 957ev_feed_fd_event (EV_P_ int fd, int revents)
764{ 958{
765 if (fd >= 0 && fd < anfdmax) 959 if (fd >= 0 && fd < anfdmax)
766 fd_event (EV_A_ fd, revents); 960 fd_event_nocheck (EV_A_ fd, revents);
767} 961}
768 962
769/* make sure the external fd watch events are in-sync */ 963/* make sure the external fd watch events are in-sync */
770/* with the kernel/libev internal state */ 964/* with the kernel/libev internal state */
771inline_size void 965inline_size void
… …
777 { 971 {
778 int fd = fdchanges [i]; 972 int fd = fdchanges [i];
779 ANFD *anfd = anfds + fd; 973 ANFD *anfd = anfds + fd;
780 ev_io *w; 974 ev_io *w;
781 975
782 unsigned char events = 0; 976 unsigned char o_events = anfd->events;
977 unsigned char o_reify = anfd->reify;
783 978
784 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 979 anfd->reify = 0;
785 events |= (unsigned char)w->events;
786 980
787#if EV_SELECT_IS_WINSOCKET 981#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
788 if (events) 982 if (o_reify & EV__IOFDSET)
789 { 983 {
790 unsigned long arg; 984 unsigned long arg;
791 #ifdef EV_FD_TO_WIN32_HANDLE
792 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 985 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
793 #else
794 anfd->handle = _get_osfhandle (fd);
795 #endif
796 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 986 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
987 printf ("oi %d %x\n", fd, anfd->handle);//D
797 } 988 }
798#endif 989#endif
799 990
991 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
800 { 992 {
801 unsigned char o_events = anfd->events;
802 unsigned char o_reify = anfd->reify;
803
804 anfd->reify = 0;
805 anfd->events = events; 993 anfd->events = 0;
806 994
807 if (o_events != events || o_reify & EV__IOFDSET) 995 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
996 anfd->events |= (unsigned char)w->events;
997
998 if (o_events != anfd->events)
999 o_reify = EV__IOFDSET; /* actually |= */
1000 }
1001
1002 if (o_reify & EV__IOFDSET)
808 backend_modify (EV_A_ fd, o_events, events); 1003 backend_modify (EV_A_ fd, o_events, anfd->events);
809 }
810 } 1004 }
811 1005
812 fdchangecnt = 0; 1006 fdchangecnt = 0;
813} 1007}
814 1008
… …
838 ev_io_stop (EV_A_ w); 1032 ev_io_stop (EV_A_ w);
839 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1033 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
840 } 1034 }
841} 1035}
842 1036
843/* check whether the given fd is atcually valid, for error recovery */ 1037/* check whether the given fd is actually valid, for error recovery */
844inline_size int 1038inline_size int
845fd_valid (int fd) 1039fd_valid (int fd)
846{ 1040{
847#ifdef _WIN32 1041#ifdef _WIN32
848 return _get_osfhandle (fd) != -1; 1042 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
849#else 1043#else
850 return fcntl (fd, F_GETFD) != -1; 1044 return fcntl (fd, F_GETFD) != -1;
851#endif 1045#endif
852} 1046}
853 1047
… …
871 1065
872 for (fd = anfdmax; fd--; ) 1066 for (fd = anfdmax; fd--; )
873 if (anfds [fd].events) 1067 if (anfds [fd].events)
874 { 1068 {
875 fd_kill (EV_A_ fd); 1069 fd_kill (EV_A_ fd);
876 return; 1070 break;
877 } 1071 }
878} 1072}
879 1073
880/* usually called after fork if backend needs to re-arm all fds from scratch */ 1074/* usually called after fork if backend needs to re-arm all fds from scratch */
881static void noinline 1075static void noinline
… …
886 for (fd = 0; fd < anfdmax; ++fd) 1080 for (fd = 0; fd < anfdmax; ++fd)
887 if (anfds [fd].events) 1081 if (anfds [fd].events)
888 { 1082 {
889 anfds [fd].events = 0; 1083 anfds [fd].events = 0;
890 anfds [fd].emask = 0; 1084 anfds [fd].emask = 0;
891 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1085 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
892 } 1086 }
893} 1087}
894 1088
1089/* used to prepare libev internal fd's */
1090/* this is not fork-safe */
1091inline_speed void
1092fd_intern (int fd)
1093{
1094#ifdef _WIN32
1095 unsigned long arg = 1;
1096 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1097#else
1098 fcntl (fd, F_SETFD, FD_CLOEXEC);
1099 fcntl (fd, F_SETFL, O_NONBLOCK);
1100#endif
1101}
1102
895/*****************************************************************************/ 1103/*****************************************************************************/
896 1104
897/* 1105/*
898 * the heap functions want a real array index. array index 0 uis guaranteed to not 1106 * the heap functions want a real array index. array index 0 is guaranteed to not
899 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1107 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
900 * the branching factor of the d-tree. 1108 * the branching factor of the d-tree.
901 */ 1109 */
902 1110
903/* 1111/*
… …
971 1179
972 for (;;) 1180 for (;;)
973 { 1181 {
974 int c = k << 1; 1182 int c = k << 1;
975 1183
976 if (c > N + HEAP0 - 1) 1184 if (c >= N + HEAP0)
977 break; 1185 break;
978 1186
979 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1187 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
980 ? 1 : 0; 1188 ? 1 : 0;
981 1189
… …
1017 1225
1018/* move an element suitably so it is in a correct place */ 1226/* move an element suitably so it is in a correct place */
1019inline_size void 1227inline_size void
1020adjustheap (ANHE *heap, int N, int k) 1228adjustheap (ANHE *heap, int N, int k)
1021{ 1229{
1022 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1230 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1023 upheap (heap, k); 1231 upheap (heap, k);
1024 else 1232 else
1025 downheap (heap, N, k); 1233 downheap (heap, N, k);
1026} 1234}
1027 1235
… …
1040/*****************************************************************************/ 1248/*****************************************************************************/
1041 1249
1042/* associate signal watchers to a signal signal */ 1250/* associate signal watchers to a signal signal */
1043typedef struct 1251typedef struct
1044{ 1252{
1253 EV_ATOMIC_T pending;
1254#if EV_MULTIPLICITY
1255 EV_P;
1256#endif
1045 WL head; 1257 WL head;
1046 EV_ATOMIC_T gotsig;
1047} ANSIG; 1258} ANSIG;
1048 1259
1049static ANSIG *signals; 1260static ANSIG signals [EV_NSIG - 1];
1050static int signalmax;
1051
1052static EV_ATOMIC_T gotsig;
1053 1261
1054/*****************************************************************************/ 1262/*****************************************************************************/
1055 1263
1056/* used to prepare libev internal fd's */ 1264#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1057/* this is not fork-safe */
1058inline_speed void
1059fd_intern (int fd)
1060{
1061#ifdef _WIN32
1062 unsigned long arg = 1;
1063 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1064#else
1065 fcntl (fd, F_SETFD, FD_CLOEXEC);
1066 fcntl (fd, F_SETFL, O_NONBLOCK);
1067#endif
1068}
1069 1265
1070static void noinline 1266static void noinline
1071evpipe_init (EV_P) 1267evpipe_init (EV_P)
1072{ 1268{
1073 if (!ev_is_active (&pipe_w)) 1269 if (!ev_is_active (&pipe_w))
1074 { 1270 {
1075#if EV_USE_EVENTFD 1271# if EV_USE_EVENTFD
1272 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1273 if (evfd < 0 && errno == EINVAL)
1076 if ((evfd = eventfd (0, 0)) >= 0) 1274 evfd = eventfd (0, 0);
1275
1276 if (evfd >= 0)
1077 { 1277 {
1078 evpipe [0] = -1; 1278 evpipe [0] = -1;
1079 fd_intern (evfd); 1279 fd_intern (evfd); /* doing it twice doesn't hurt */
1080 ev_io_set (&pipe_w, evfd, EV_READ); 1280 ev_io_set (&pipe_w, evfd, EV_READ);
1081 } 1281 }
1082 else 1282 else
1083#endif 1283# endif
1084 { 1284 {
1085 while (pipe (evpipe)) 1285 while (pipe (evpipe))
1086 ev_syserr ("(libev) error creating signal/async pipe"); 1286 ev_syserr ("(libev) error creating signal/async pipe");
1087 1287
1088 fd_intern (evpipe [0]); 1288 fd_intern (evpipe [0]);
… …
1099evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1299evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1100{ 1300{
1101 if (!*flag) 1301 if (!*flag)
1102 { 1302 {
1103 int old_errno = errno; /* save errno because write might clobber it */ 1303 int old_errno = errno; /* save errno because write might clobber it */
1304 char dummy;
1104 1305
1105 *flag = 1; 1306 *flag = 1;
1106 1307
1107#if EV_USE_EVENTFD 1308#if EV_USE_EVENTFD
1108 if (evfd >= 0) 1309 if (evfd >= 0)
… …
1110 uint64_t counter = 1; 1311 uint64_t counter = 1;
1111 write (evfd, &counter, sizeof (uint64_t)); 1312 write (evfd, &counter, sizeof (uint64_t));
1112 } 1313 }
1113 else 1314 else
1114#endif 1315#endif
1316 /* win32 people keep sending patches that change this write() to send() */
1317 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1318 /* so when you think this write should be a send instead, please find out */
1319 /* where your send() is from - it's definitely not the microsoft send, and */
1320 /* tell me. thank you. */
1115 write (evpipe [1], &old_errno, 1); 1321 write (evpipe [1], &dummy, 1);
1116 1322
1117 errno = old_errno; 1323 errno = old_errno;
1118 } 1324 }
1119} 1325}
1120 1326
1121/* called whenever the libev signal pipe */ 1327/* called whenever the libev signal pipe */
1122/* got some events (signal, async) */ 1328/* got some events (signal, async) */
1123static void 1329static void
1124pipecb (EV_P_ ev_io *iow, int revents) 1330pipecb (EV_P_ ev_io *iow, int revents)
1125{ 1331{
1332 int i;
1333
1126#if EV_USE_EVENTFD 1334#if EV_USE_EVENTFD
1127 if (evfd >= 0) 1335 if (evfd >= 0)
1128 { 1336 {
1129 uint64_t counter; 1337 uint64_t counter;
1130 read (evfd, &counter, sizeof (uint64_t)); 1338 read (evfd, &counter, sizeof (uint64_t));
1131 } 1339 }
1132 else 1340 else
1133#endif 1341#endif
1134 { 1342 {
1135 char dummy; 1343 char dummy;
1344 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1136 read (evpipe [0], &dummy, 1); 1345 read (evpipe [0], &dummy, 1);
1137 } 1346 }
1138 1347
1139 if (gotsig && ev_is_default_loop (EV_A)) 1348 if (sig_pending)
1140 { 1349 {
1141 int signum; 1350 sig_pending = 0;
1142 gotsig = 0;
1143 1351
1144 for (signum = signalmax; signum--; ) 1352 for (i = EV_NSIG - 1; i--; )
1145 if (signals [signum].gotsig) 1353 if (expect_false (signals [i].pending))
1146 ev_feed_signal_event (EV_A_ signum + 1); 1354 ev_feed_signal_event (EV_A_ i + 1);
1147 } 1355 }
1148 1356
1149#if EV_ASYNC_ENABLE 1357#if EV_ASYNC_ENABLE
1150 if (gotasync) 1358 if (async_pending)
1151 { 1359 {
1152 int i; 1360 async_pending = 0;
1153 gotasync = 0;
1154 1361
1155 for (i = asynccnt; i--; ) 1362 for (i = asynccnt; i--; )
1156 if (asyncs [i]->sent) 1363 if (asyncs [i]->sent)
1157 { 1364 {
1158 asyncs [i]->sent = 0; 1365 asyncs [i]->sent = 0;
… …
1166 1373
1167static void 1374static void
1168ev_sighandler (int signum) 1375ev_sighandler (int signum)
1169{ 1376{
1170#if EV_MULTIPLICITY 1377#if EV_MULTIPLICITY
1171 struct ev_loop *loop = &default_loop_struct; 1378 EV_P = signals [signum - 1].loop;
1172#endif 1379#endif
1173 1380
1174#if _WIN32 1381#ifdef _WIN32
1175 signal (signum, ev_sighandler); 1382 signal (signum, ev_sighandler);
1176#endif 1383#endif
1177 1384
1178 signals [signum - 1].gotsig = 1; 1385 signals [signum - 1].pending = 1;
1179 evpipe_write (EV_A_ &gotsig); 1386 evpipe_write (EV_A_ &sig_pending);
1180} 1387}
1181 1388
1182void noinline 1389void noinline
1183ev_feed_signal_event (EV_P_ int signum) 1390ev_feed_signal_event (EV_P_ int signum)
1184{ 1391{
1185 WL w; 1392 WL w;
1186 1393
1394 if (expect_false (signum <= 0 || signum > EV_NSIG))
1395 return;
1396
1397 --signum;
1398
1187#if EV_MULTIPLICITY 1399#if EV_MULTIPLICITY
1188 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1400 /* it is permissible to try to feed a signal to the wrong loop */
1189#endif 1401 /* or, likely more useful, feeding a signal nobody is waiting for */
1190 1402
1191 --signum; 1403 if (expect_false (signals [signum].loop != EV_A))
1192
1193 if (signum < 0 || signum >= signalmax)
1194 return; 1404 return;
1405#endif
1195 1406
1196 signals [signum].gotsig = 0; 1407 signals [signum].pending = 0;
1197 1408
1198 for (w = signals [signum].head; w; w = w->next) 1409 for (w = signals [signum].head; w; w = w->next)
1199 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1410 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1200} 1411}
1201 1412
1413#if EV_USE_SIGNALFD
1414static void
1415sigfdcb (EV_P_ ev_io *iow, int revents)
1416{
1417 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1418
1419 for (;;)
1420 {
1421 ssize_t res = read (sigfd, si, sizeof (si));
1422
1423 /* not ISO-C, as res might be -1, but works with SuS */
1424 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1425 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1426
1427 if (res < (ssize_t)sizeof (si))
1428 break;
1429 }
1430}
1431#endif
1432
1433#endif
1434
1202/*****************************************************************************/ 1435/*****************************************************************************/
1203 1436
1437#if EV_CHILD_ENABLE
1204static WL childs [EV_PID_HASHSIZE]; 1438static WL childs [EV_PID_HASHSIZE];
1205
1206#ifndef _WIN32
1207 1439
1208static ev_signal childev; 1440static ev_signal childev;
1209 1441
1210#ifndef WIFCONTINUED 1442#ifndef WIFCONTINUED
1211# define WIFCONTINUED(status) 0 1443# define WIFCONTINUED(status) 0
… …
1216child_reap (EV_P_ int chain, int pid, int status) 1448child_reap (EV_P_ int chain, int pid, int status)
1217{ 1449{
1218 ev_child *w; 1450 ev_child *w;
1219 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1451 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1220 1452
1221 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1453 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1222 { 1454 {
1223 if ((w->pid == pid || !w->pid) 1455 if ((w->pid == pid || !w->pid)
1224 && (!traced || (w->flags & 1))) 1456 && (!traced || (w->flags & 1)))
1225 { 1457 {
1226 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1458 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1251 /* make sure we are called again until all children have been reaped */ 1483 /* make sure we are called again until all children have been reaped */
1252 /* we need to do it this way so that the callback gets called before we continue */ 1484 /* we need to do it this way so that the callback gets called before we continue */
1253 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1485 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1254 1486
1255 child_reap (EV_A_ pid, pid, status); 1487 child_reap (EV_A_ pid, pid, status);
1256 if (EV_PID_HASHSIZE > 1) 1488 if ((EV_PID_HASHSIZE) > 1)
1257 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1489 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1258} 1490}
1259 1491
1260#endif 1492#endif
1261 1493
1262/*****************************************************************************/ 1494/*****************************************************************************/
1263 1495
1496#if EV_USE_IOCP
1497# include "ev_iocp.c"
1498#endif
1264#if EV_USE_PORT 1499#if EV_USE_PORT
1265# include "ev_port.c" 1500# include "ev_port.c"
1266#endif 1501#endif
1267#if EV_USE_KQUEUE 1502#if EV_USE_KQUEUE
1268# include "ev_kqueue.c" 1503# include "ev_kqueue.c"
… …
1328#ifdef __APPLE__ 1563#ifdef __APPLE__
1329 /* only select works correctly on that "unix-certified" platform */ 1564 /* only select works correctly on that "unix-certified" platform */
1330 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1565 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1331 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1566 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1332#endif 1567#endif
1568#ifdef __FreeBSD__
1569 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1570#endif
1333 1571
1334 return flags; 1572 return flags;
1335} 1573}
1336 1574
1337unsigned int 1575unsigned int
1338ev_embeddable_backends (void) 1576ev_embeddable_backends (void)
1339{ 1577{
1340 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1578 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1341 1579
1342 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1580 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1343 /* please fix it and tell me how to detect the fix */ 1581 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1344 flags &= ~EVBACKEND_EPOLL; 1582 flags &= ~EVBACKEND_EPOLL;
1345 1583
1346 return flags; 1584 return flags;
1347} 1585}
1348 1586
1349unsigned int 1587unsigned int
1350ev_backend (EV_P) 1588ev_backend (EV_P)
1351{ 1589{
1352 return backend; 1590 return backend;
1353} 1591}
1354 1592
1593#if EV_FEATURE_API
1355unsigned int 1594unsigned int
1356ev_loop_count (EV_P) 1595ev_iteration (EV_P)
1357{ 1596{
1358 return loop_count; 1597 return loop_count;
1359} 1598}
1360 1599
1600unsigned int
1601ev_depth (EV_P)
1602{
1603 return loop_depth;
1604}
1605
1361void 1606void
1362ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1607ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1363{ 1608{
1364 io_blocktime = interval; 1609 io_blocktime = interval;
1365} 1610}
… …
1367void 1612void
1368ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1613ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1369{ 1614{
1370 timeout_blocktime = interval; 1615 timeout_blocktime = interval;
1371} 1616}
1617
1618void
1619ev_set_userdata (EV_P_ void *data)
1620{
1621 userdata = data;
1622}
1623
1624void *
1625ev_userdata (EV_P)
1626{
1627 return userdata;
1628}
1629
1630void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1631{
1632 invoke_cb = invoke_pending_cb;
1633}
1634
1635void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1636{
1637 release_cb = release;
1638 acquire_cb = acquire;
1639}
1640#endif
1372 1641
1373/* initialise a loop structure, must be zero-initialised */ 1642/* initialise a loop structure, must be zero-initialised */
1374static void noinline 1643static void noinline
1375loop_init (EV_P_ unsigned int flags) 1644loop_init (EV_P_ unsigned int flags)
1376{ 1645{
… …
1394 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1663 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1395 have_monotonic = 1; 1664 have_monotonic = 1;
1396 } 1665 }
1397#endif 1666#endif
1398 1667
1668 /* pid check not overridable via env */
1669#ifndef _WIN32
1670 if (flags & EVFLAG_FORKCHECK)
1671 curpid = getpid ();
1672#endif
1673
1674 if (!(flags & EVFLAG_NOENV)
1675 && !enable_secure ()
1676 && getenv ("LIBEV_FLAGS"))
1677 flags = atoi (getenv ("LIBEV_FLAGS"));
1678
1399 ev_rt_now = ev_time (); 1679 ev_rt_now = ev_time ();
1400 mn_now = get_clock (); 1680 mn_now = get_clock ();
1401 now_floor = mn_now; 1681 now_floor = mn_now;
1402 rtmn_diff = ev_rt_now - mn_now; 1682 rtmn_diff = ev_rt_now - mn_now;
1683#if EV_FEATURE_API
1684 invoke_cb = ev_invoke_pending;
1685#endif
1403 1686
1404 io_blocktime = 0.; 1687 io_blocktime = 0.;
1405 timeout_blocktime = 0.; 1688 timeout_blocktime = 0.;
1406 backend = 0; 1689 backend = 0;
1407 backend_fd = -1; 1690 backend_fd = -1;
1408 gotasync = 0; 1691 sig_pending = 0;
1692#if EV_ASYNC_ENABLE
1693 async_pending = 0;
1694#endif
1409#if EV_USE_INOTIFY 1695#if EV_USE_INOTIFY
1410 fs_fd = -2; 1696 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1411#endif 1697#endif
1412 1698#if EV_USE_SIGNALFD
1413 /* pid check not overridable via env */ 1699 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1414#ifndef _WIN32
1415 if (flags & EVFLAG_FORKCHECK)
1416 curpid = getpid ();
1417#endif 1700#endif
1418
1419 if (!(flags & EVFLAG_NOENV)
1420 && !enable_secure ()
1421 && getenv ("LIBEV_FLAGS"))
1422 flags = atoi (getenv ("LIBEV_FLAGS"));
1423 1701
1424 if (!(flags & 0x0000ffffU)) 1702 if (!(flags & 0x0000ffffU))
1425 flags |= ev_recommended_backends (); 1703 flags |= ev_recommended_backends ();
1426 1704
1705#if EV_USE_IOCP
1706 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1707#endif
1427#if EV_USE_PORT 1708#if EV_USE_PORT
1428 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1709 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1429#endif 1710#endif
1430#if EV_USE_KQUEUE 1711#if EV_USE_KQUEUE
1431 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1712 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1440 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1721 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1441#endif 1722#endif
1442 1723
1443 ev_prepare_init (&pending_w, pendingcb); 1724 ev_prepare_init (&pending_w, pendingcb);
1444 1725
1726#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1445 ev_init (&pipe_w, pipecb); 1727 ev_init (&pipe_w, pipecb);
1446 ev_set_priority (&pipe_w, EV_MAXPRI); 1728 ev_set_priority (&pipe_w, EV_MAXPRI);
1729#endif
1447 } 1730 }
1448} 1731}
1449 1732
1450/* free up a loop structure */ 1733/* free up a loop structure */
1451static void noinline 1734void
1452loop_destroy (EV_P) 1735ev_loop_destroy (EV_P)
1453{ 1736{
1454 int i; 1737 int i;
1455 1738
1739#if EV_MULTIPLICITY
1740 /* mimic free (0) */
1741 if (!EV_A)
1742 return;
1743#endif
1744
1745#if EV_CLEANUP_ENABLE
1746 /* queue cleanup watchers (and execute them) */
1747 if (expect_false (cleanupcnt))
1748 {
1749 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1750 EV_INVOKE_PENDING;
1751 }
1752#endif
1753
1754#if EV_CHILD_ENABLE
1755 if (ev_is_active (&childev))
1756 {
1757 ev_ref (EV_A); /* child watcher */
1758 ev_signal_stop (EV_A_ &childev);
1759 }
1760#endif
1761
1456 if (ev_is_active (&pipe_w)) 1762 if (ev_is_active (&pipe_w))
1457 { 1763 {
1458 ev_ref (EV_A); /* signal watcher */ 1764 /*ev_ref (EV_A);*/
1459 ev_io_stop (EV_A_ &pipe_w); 1765 /*ev_io_stop (EV_A_ &pipe_w);*/
1460 1766
1461#if EV_USE_EVENTFD 1767#if EV_USE_EVENTFD
1462 if (evfd >= 0) 1768 if (evfd >= 0)
1463 close (evfd); 1769 close (evfd);
1464#endif 1770#endif
1465 1771
1466 if (evpipe [0] >= 0) 1772 if (evpipe [0] >= 0)
1467 { 1773 {
1468 close (evpipe [0]); 1774 EV_WIN32_CLOSE_FD (evpipe [0]);
1469 close (evpipe [1]); 1775 EV_WIN32_CLOSE_FD (evpipe [1]);
1470 } 1776 }
1471 } 1777 }
1778
1779#if EV_USE_SIGNALFD
1780 if (ev_is_active (&sigfd_w))
1781 close (sigfd);
1782#endif
1472 1783
1473#if EV_USE_INOTIFY 1784#if EV_USE_INOTIFY
1474 if (fs_fd >= 0) 1785 if (fs_fd >= 0)
1475 close (fs_fd); 1786 close (fs_fd);
1476#endif 1787#endif
1477 1788
1478 if (backend_fd >= 0) 1789 if (backend_fd >= 0)
1479 close (backend_fd); 1790 close (backend_fd);
1480 1791
1792#if EV_USE_IOCP
1793 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1794#endif
1481#if EV_USE_PORT 1795#if EV_USE_PORT
1482 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1796 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1483#endif 1797#endif
1484#if EV_USE_KQUEUE 1798#if EV_USE_KQUEUE
1485 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1799 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1500#if EV_IDLE_ENABLE 1814#if EV_IDLE_ENABLE
1501 array_free (idle, [i]); 1815 array_free (idle, [i]);
1502#endif 1816#endif
1503 } 1817 }
1504 1818
1505 ev_free (anfds); anfdmax = 0; 1819 ev_free (anfds); anfds = 0; anfdmax = 0;
1506 1820
1507 /* have to use the microsoft-never-gets-it-right macro */ 1821 /* have to use the microsoft-never-gets-it-right macro */
1508 array_free (rfeed, EMPTY); 1822 array_free (rfeed, EMPTY);
1509 array_free (fdchange, EMPTY); 1823 array_free (fdchange, EMPTY);
1510 array_free (timer, EMPTY); 1824 array_free (timer, EMPTY);
… …
1512 array_free (periodic, EMPTY); 1826 array_free (periodic, EMPTY);
1513#endif 1827#endif
1514#if EV_FORK_ENABLE 1828#if EV_FORK_ENABLE
1515 array_free (fork, EMPTY); 1829 array_free (fork, EMPTY);
1516#endif 1830#endif
1831#if EV_CLEANUP_ENABLE
1832 array_free (cleanup, EMPTY);
1833#endif
1517 array_free (prepare, EMPTY); 1834 array_free (prepare, EMPTY);
1518 array_free (check, EMPTY); 1835 array_free (check, EMPTY);
1519#if EV_ASYNC_ENABLE 1836#if EV_ASYNC_ENABLE
1520 array_free (async, EMPTY); 1837 array_free (async, EMPTY);
1521#endif 1838#endif
1522 1839
1523 backend = 0; 1840 backend = 0;
1841
1842#if EV_MULTIPLICITY
1843 if (ev_is_default_loop (EV_A))
1844#endif
1845 ev_default_loop_ptr = 0;
1846#if EV_MULTIPLICITY
1847 else
1848 ev_free (EV_A);
1849#endif
1524} 1850}
1525 1851
1526#if EV_USE_INOTIFY 1852#if EV_USE_INOTIFY
1527inline_size void infy_fork (EV_P); 1853inline_size void infy_fork (EV_P);
1528#endif 1854#endif
… …
1545 1871
1546 if (ev_is_active (&pipe_w)) 1872 if (ev_is_active (&pipe_w))
1547 { 1873 {
1548 /* this "locks" the handlers against writing to the pipe */ 1874 /* this "locks" the handlers against writing to the pipe */
1549 /* while we modify the fd vars */ 1875 /* while we modify the fd vars */
1550 gotsig = 1; 1876 sig_pending = 1;
1551#if EV_ASYNC_ENABLE 1877#if EV_ASYNC_ENABLE
1552 gotasync = 1; 1878 async_pending = 1;
1553#endif 1879#endif
1554 1880
1555 ev_ref (EV_A); 1881 ev_ref (EV_A);
1556 ev_io_stop (EV_A_ &pipe_w); 1882 ev_io_stop (EV_A_ &pipe_w);
1557 1883
… …
1560 close (evfd); 1886 close (evfd);
1561#endif 1887#endif
1562 1888
1563 if (evpipe [0] >= 0) 1889 if (evpipe [0] >= 0)
1564 { 1890 {
1565 close (evpipe [0]); 1891 EV_WIN32_CLOSE_FD (evpipe [0]);
1566 close (evpipe [1]); 1892 EV_WIN32_CLOSE_FD (evpipe [1]);
1567 } 1893 }
1568 1894
1895#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1569 evpipe_init (EV_A); 1896 evpipe_init (EV_A);
1570 /* now iterate over everything, in case we missed something */ 1897 /* now iterate over everything, in case we missed something */
1571 pipecb (EV_A_ &pipe_w, EV_READ); 1898 pipecb (EV_A_ &pipe_w, EV_READ);
1899#endif
1572 } 1900 }
1573 1901
1574 postfork = 0; 1902 postfork = 0;
1575} 1903}
1576 1904
1577#if EV_MULTIPLICITY 1905#if EV_MULTIPLICITY
1578 1906
1579struct ev_loop * 1907struct ev_loop *
1580ev_loop_new (unsigned int flags) 1908ev_loop_new (unsigned int flags)
1581{ 1909{
1582 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1910 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1583 1911
1584 memset (loop, 0, sizeof (struct ev_loop)); 1912 memset (EV_A, 0, sizeof (struct ev_loop));
1585
1586 loop_init (EV_A_ flags); 1913 loop_init (EV_A_ flags);
1587 1914
1588 if (ev_backend (EV_A)) 1915 if (ev_backend (EV_A))
1589 return loop; 1916 return EV_A;
1590 1917
1918 ev_free (EV_A);
1591 return 0; 1919 return 0;
1592} 1920}
1593 1921
1594void 1922#endif /* multiplicity */
1595ev_loop_destroy (EV_P)
1596{
1597 loop_destroy (EV_A);
1598 ev_free (loop);
1599}
1600
1601void
1602ev_loop_fork (EV_P)
1603{
1604 postfork = 1; /* must be in line with ev_default_fork */
1605}
1606 1923
1607#if EV_VERIFY 1924#if EV_VERIFY
1608static void noinline 1925static void noinline
1609verify_watcher (EV_P_ W w) 1926verify_watcher (EV_P_ W w)
1610{ 1927{
… …
1638 verify_watcher (EV_A_ ws [cnt]); 1955 verify_watcher (EV_A_ ws [cnt]);
1639 } 1956 }
1640} 1957}
1641#endif 1958#endif
1642 1959
1960#if EV_FEATURE_API
1643void 1961void
1644ev_loop_verify (EV_P) 1962ev_verify (EV_P)
1645{ 1963{
1646#if EV_VERIFY 1964#if EV_VERIFY
1647 int i; 1965 int i;
1648 WL w; 1966 WL w;
1649 1967
… …
1683#if EV_FORK_ENABLE 2001#if EV_FORK_ENABLE
1684 assert (forkmax >= forkcnt); 2002 assert (forkmax >= forkcnt);
1685 array_verify (EV_A_ (W *)forks, forkcnt); 2003 array_verify (EV_A_ (W *)forks, forkcnt);
1686#endif 2004#endif
1687 2005
2006#if EV_CLEANUP_ENABLE
2007 assert (cleanupmax >= cleanupcnt);
2008 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2009#endif
2010
1688#if EV_ASYNC_ENABLE 2011#if EV_ASYNC_ENABLE
1689 assert (asyncmax >= asynccnt); 2012 assert (asyncmax >= asynccnt);
1690 array_verify (EV_A_ (W *)asyncs, asynccnt); 2013 array_verify (EV_A_ (W *)asyncs, asynccnt);
1691#endif 2014#endif
1692 2015
2016#if EV_PREPARE_ENABLE
1693 assert (preparemax >= preparecnt); 2017 assert (preparemax >= preparecnt);
1694 array_verify (EV_A_ (W *)prepares, preparecnt); 2018 array_verify (EV_A_ (W *)prepares, preparecnt);
2019#endif
1695 2020
2021#if EV_CHECK_ENABLE
1696 assert (checkmax >= checkcnt); 2022 assert (checkmax >= checkcnt);
1697 array_verify (EV_A_ (W *)checks, checkcnt); 2023 array_verify (EV_A_ (W *)checks, checkcnt);
2024#endif
1698 2025
1699# if 0 2026# if 0
2027#if EV_CHILD_ENABLE
1700 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2028 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1701 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2029 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2030#endif
1702# endif 2031# endif
1703#endif 2032#endif
1704} 2033}
1705 2034#endif
1706#endif /* multiplicity */
1707 2035
1708#if EV_MULTIPLICITY 2036#if EV_MULTIPLICITY
1709struct ev_loop * 2037struct ev_loop *
1710ev_default_loop_init (unsigned int flags)
1711#else 2038#else
1712int 2039int
2040#endif
1713ev_default_loop (unsigned int flags) 2041ev_default_loop (unsigned int flags)
1714#endif
1715{ 2042{
1716 if (!ev_default_loop_ptr) 2043 if (!ev_default_loop_ptr)
1717 { 2044 {
1718#if EV_MULTIPLICITY 2045#if EV_MULTIPLICITY
1719 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2046 EV_P = ev_default_loop_ptr = &default_loop_struct;
1720#else 2047#else
1721 ev_default_loop_ptr = 1; 2048 ev_default_loop_ptr = 1;
1722#endif 2049#endif
1723 2050
1724 loop_init (EV_A_ flags); 2051 loop_init (EV_A_ flags);
1725 2052
1726 if (ev_backend (EV_A)) 2053 if (ev_backend (EV_A))
1727 { 2054 {
1728#ifndef _WIN32 2055#if EV_CHILD_ENABLE
1729 ev_signal_init (&childev, childcb, SIGCHLD); 2056 ev_signal_init (&childev, childcb, SIGCHLD);
1730 ev_set_priority (&childev, EV_MAXPRI); 2057 ev_set_priority (&childev, EV_MAXPRI);
1731 ev_signal_start (EV_A_ &childev); 2058 ev_signal_start (EV_A_ &childev);
1732 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2059 ev_unref (EV_A); /* child watcher should not keep loop alive */
1733#endif 2060#endif
… …
1738 2065
1739 return ev_default_loop_ptr; 2066 return ev_default_loop_ptr;
1740} 2067}
1741 2068
1742void 2069void
1743ev_default_destroy (void) 2070ev_loop_fork (EV_P)
1744{ 2071{
1745#if EV_MULTIPLICITY
1746 struct ev_loop *loop = ev_default_loop_ptr;
1747#endif
1748
1749 ev_default_loop_ptr = 0;
1750
1751#ifndef _WIN32
1752 ev_ref (EV_A); /* child watcher */
1753 ev_signal_stop (EV_A_ &childev);
1754#endif
1755
1756 loop_destroy (EV_A);
1757}
1758
1759void
1760ev_default_fork (void)
1761{
1762#if EV_MULTIPLICITY
1763 struct ev_loop *loop = ev_default_loop_ptr;
1764#endif
1765
1766 postfork = 1; /* must be in line with ev_loop_fork */ 2072 postfork = 1; /* must be in line with ev_default_fork */
1767} 2073}
1768 2074
1769/*****************************************************************************/ 2075/*****************************************************************************/
1770 2076
1771void 2077void
1772ev_invoke (EV_P_ void *w, int revents) 2078ev_invoke (EV_P_ void *w, int revents)
1773{ 2079{
1774 EV_CB_INVOKE ((W)w, revents); 2080 EV_CB_INVOKE ((W)w, revents);
1775} 2081}
1776 2082
1777inline_speed void 2083unsigned int
1778call_pending (EV_P) 2084ev_pending_count (EV_P)
2085{
2086 int pri;
2087 unsigned int count = 0;
2088
2089 for (pri = NUMPRI; pri--; )
2090 count += pendingcnt [pri];
2091
2092 return count;
2093}
2094
2095void noinline
2096ev_invoke_pending (EV_P)
1779{ 2097{
1780 int pri; 2098 int pri;
1781 2099
1782 for (pri = NUMPRI; pri--; ) 2100 for (pri = NUMPRI; pri--; )
1783 while (pendingcnt [pri]) 2101 while (pendingcnt [pri])
… …
1850 EV_FREQUENT_CHECK; 2168 EV_FREQUENT_CHECK;
1851 feed_reverse (EV_A_ (W)w); 2169 feed_reverse (EV_A_ (W)w);
1852 } 2170 }
1853 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2171 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1854 2172
1855 feed_reverse_done (EV_A_ EV_TIMEOUT); 2173 feed_reverse_done (EV_A_ EV_TIMER);
1856 } 2174 }
1857} 2175}
1858 2176
1859#if EV_PERIODIC_ENABLE 2177#if EV_PERIODIC_ENABLE
1860/* make periodics pending */ 2178/* make periodics pending */
… …
1913 feed_reverse_done (EV_A_ EV_PERIODIC); 2231 feed_reverse_done (EV_A_ EV_PERIODIC);
1914 } 2232 }
1915} 2233}
1916 2234
1917/* simply recalculate all periodics */ 2235/* simply recalculate all periodics */
1918/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2236/* TODO: maybe ensure that at least one event happens when jumping forward? */
1919static void noinline 2237static void noinline
1920periodics_reschedule (EV_P) 2238periodics_reschedule (EV_P)
1921{ 2239{
1922 int i; 2240 int i;
1923 2241
… …
1951 ANHE_at_cache (*he); 2269 ANHE_at_cache (*he);
1952 } 2270 }
1953} 2271}
1954 2272
1955/* fetch new monotonic and realtime times from the kernel */ 2273/* fetch new monotonic and realtime times from the kernel */
1956/* also detetc if there was a timejump, and act accordingly */ 2274/* also detect if there was a timejump, and act accordingly */
1957inline_speed void 2275inline_speed void
1958time_update (EV_P_ ev_tstamp max_block) 2276time_update (EV_P_ ev_tstamp max_block)
1959{ 2277{
1960#if EV_USE_MONOTONIC 2278#if EV_USE_MONOTONIC
1961 if (expect_true (have_monotonic)) 2279 if (expect_true (have_monotonic))
… …
2018 2336
2019 mn_now = ev_rt_now; 2337 mn_now = ev_rt_now;
2020 } 2338 }
2021} 2339}
2022 2340
2023static int loop_done;
2024
2025void 2341void
2026ev_loop (EV_P_ int flags) 2342ev_run (EV_P_ int flags)
2027{ 2343{
2344#if EV_FEATURE_API
2345 ++loop_depth;
2346#endif
2347
2348 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2349
2028 loop_done = EVUNLOOP_CANCEL; 2350 loop_done = EVBREAK_CANCEL;
2029 2351
2030 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2352 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2031 2353
2032 do 2354 do
2033 { 2355 {
2034#if EV_VERIFY >= 2 2356#if EV_VERIFY >= 2
2035 ev_loop_verify (EV_A); 2357 ev_verify (EV_A);
2036#endif 2358#endif
2037 2359
2038#ifndef _WIN32 2360#ifndef _WIN32
2039 if (expect_false (curpid)) /* penalise the forking check even more */ 2361 if (expect_false (curpid)) /* penalise the forking check even more */
2040 if (expect_false (getpid () != curpid)) 2362 if (expect_false (getpid () != curpid))
… …
2048 /* we might have forked, so queue fork handlers */ 2370 /* we might have forked, so queue fork handlers */
2049 if (expect_false (postfork)) 2371 if (expect_false (postfork))
2050 if (forkcnt) 2372 if (forkcnt)
2051 { 2373 {
2052 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2374 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2053 call_pending (EV_A); 2375 EV_INVOKE_PENDING;
2054 } 2376 }
2055#endif 2377#endif
2056 2378
2379#if EV_PREPARE_ENABLE
2057 /* queue prepare watchers (and execute them) */ 2380 /* queue prepare watchers (and execute them) */
2058 if (expect_false (preparecnt)) 2381 if (expect_false (preparecnt))
2059 { 2382 {
2060 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2383 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2061 call_pending (EV_A); 2384 EV_INVOKE_PENDING;
2062 } 2385 }
2386#endif
2387
2388 if (expect_false (loop_done))
2389 break;
2063 2390
2064 /* we might have forked, so reify kernel state if necessary */ 2391 /* we might have forked, so reify kernel state if necessary */
2065 if (expect_false (postfork)) 2392 if (expect_false (postfork))
2066 loop_fork (EV_A); 2393 loop_fork (EV_A);
2067 2394
… …
2071 /* calculate blocking time */ 2398 /* calculate blocking time */
2072 { 2399 {
2073 ev_tstamp waittime = 0.; 2400 ev_tstamp waittime = 0.;
2074 ev_tstamp sleeptime = 0.; 2401 ev_tstamp sleeptime = 0.;
2075 2402
2403 /* remember old timestamp for io_blocktime calculation */
2404 ev_tstamp prev_mn_now = mn_now;
2405
2406 /* update time to cancel out callback processing overhead */
2407 time_update (EV_A_ 1e100);
2408
2076 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2409 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2077 { 2410 {
2078 /* update time to cancel out callback processing overhead */
2079 time_update (EV_A_ 1e100);
2080
2081 waittime = MAX_BLOCKTIME; 2411 waittime = MAX_BLOCKTIME;
2082 2412
2083 if (timercnt) 2413 if (timercnt)
2084 { 2414 {
2085 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2415 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
2092 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2422 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2093 if (waittime > to) waittime = to; 2423 if (waittime > to) waittime = to;
2094 } 2424 }
2095#endif 2425#endif
2096 2426
2427 /* don't let timeouts decrease the waittime below timeout_blocktime */
2097 if (expect_false (waittime < timeout_blocktime)) 2428 if (expect_false (waittime < timeout_blocktime))
2098 waittime = timeout_blocktime; 2429 waittime = timeout_blocktime;
2099 2430
2100 sleeptime = waittime - backend_fudge; 2431 /* extra check because io_blocktime is commonly 0 */
2101
2102 if (expect_true (sleeptime > io_blocktime)) 2432 if (expect_false (io_blocktime))
2103 sleeptime = io_blocktime;
2104
2105 if (sleeptime)
2106 { 2433 {
2434 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2435
2436 if (sleeptime > waittime - backend_fudge)
2437 sleeptime = waittime - backend_fudge;
2438
2439 if (expect_true (sleeptime > 0.))
2440 {
2107 ev_sleep (sleeptime); 2441 ev_sleep (sleeptime);
2108 waittime -= sleeptime; 2442 waittime -= sleeptime;
2443 }
2109 } 2444 }
2110 } 2445 }
2111 2446
2447#if EV_FEATURE_API
2112 ++loop_count; 2448 ++loop_count;
2449#endif
2450 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2113 backend_poll (EV_A_ waittime); 2451 backend_poll (EV_A_ waittime);
2452 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2114 2453
2115 /* update ev_rt_now, do magic */ 2454 /* update ev_rt_now, do magic */
2116 time_update (EV_A_ waittime + sleeptime); 2455 time_update (EV_A_ waittime + sleeptime);
2117 } 2456 }
2118 2457
… …
2125#if EV_IDLE_ENABLE 2464#if EV_IDLE_ENABLE
2126 /* queue idle watchers unless other events are pending */ 2465 /* queue idle watchers unless other events are pending */
2127 idle_reify (EV_A); 2466 idle_reify (EV_A);
2128#endif 2467#endif
2129 2468
2469#if EV_CHECK_ENABLE
2130 /* queue check watchers, to be executed first */ 2470 /* queue check watchers, to be executed first */
2131 if (expect_false (checkcnt)) 2471 if (expect_false (checkcnt))
2132 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2472 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2473#endif
2133 2474
2134 call_pending (EV_A); 2475 EV_INVOKE_PENDING;
2135 } 2476 }
2136 while (expect_true ( 2477 while (expect_true (
2137 activecnt 2478 activecnt
2138 && !loop_done 2479 && !loop_done
2139 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2480 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2140 )); 2481 ));
2141 2482
2142 if (loop_done == EVUNLOOP_ONE) 2483 if (loop_done == EVBREAK_ONE)
2143 loop_done = EVUNLOOP_CANCEL; 2484 loop_done = EVBREAK_CANCEL;
2144}
2145 2485
2486#if EV_FEATURE_API
2487 --loop_depth;
2488#endif
2489}
2490
2146void 2491void
2147ev_unloop (EV_P_ int how) 2492ev_break (EV_P_ int how)
2148{ 2493{
2149 loop_done = how; 2494 loop_done = how;
2150} 2495}
2151 2496
2152void 2497void
… …
2199inline_size void 2544inline_size void
2200wlist_del (WL *head, WL elem) 2545wlist_del (WL *head, WL elem)
2201{ 2546{
2202 while (*head) 2547 while (*head)
2203 { 2548 {
2204 if (*head == elem) 2549 if (expect_true (*head == elem))
2205 { 2550 {
2206 *head = elem->next; 2551 *head = elem->next;
2207 return; 2552 break;
2208 } 2553 }
2209 2554
2210 head = &(*head)->next; 2555 head = &(*head)->next;
2211 } 2556 }
2212} 2557}
… …
2240} 2585}
2241 2586
2242inline_size void 2587inline_size void
2243pri_adjust (EV_P_ W w) 2588pri_adjust (EV_P_ W w)
2244{ 2589{
2245 int pri = w->priority; 2590 int pri = ev_priority (w);
2246 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2591 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2247 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2592 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2248 w->priority = pri; 2593 ev_set_priority (w, pri);
2249} 2594}
2250 2595
2251inline_speed void 2596inline_speed void
2252ev_start (EV_P_ W w, int active) 2597ev_start (EV_P_ W w, int active)
2253{ 2598{
… …
2272 2617
2273 if (expect_false (ev_is_active (w))) 2618 if (expect_false (ev_is_active (w)))
2274 return; 2619 return;
2275 2620
2276 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2621 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2277 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2622 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2278 2623
2279 EV_FREQUENT_CHECK; 2624 EV_FREQUENT_CHECK;
2280 2625
2281 ev_start (EV_A_ (W)w, 1); 2626 ev_start (EV_A_ (W)w, 1);
2282 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2627 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2283 wlist_add (&anfds[fd].head, (WL)w); 2628 wlist_add (&anfds[fd].head, (WL)w);
2284 2629
2285 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 2630 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2286 w->events &= ~EV__IOFDSET; 2631 w->events &= ~EV__IOFDSET;
2287 2632
2288 EV_FREQUENT_CHECK; 2633 EV_FREQUENT_CHECK;
2289} 2634}
2290 2635
… …
2300 EV_FREQUENT_CHECK; 2645 EV_FREQUENT_CHECK;
2301 2646
2302 wlist_del (&anfds[w->fd].head, (WL)w); 2647 wlist_del (&anfds[w->fd].head, (WL)w);
2303 ev_stop (EV_A_ (W)w); 2648 ev_stop (EV_A_ (W)w);
2304 2649
2305 fd_change (EV_A_ w->fd, 1); 2650 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2306 2651
2307 EV_FREQUENT_CHECK; 2652 EV_FREQUENT_CHECK;
2308} 2653}
2309 2654
2310void noinline 2655void noinline
… …
2352 timers [active] = timers [timercnt + HEAP0]; 2697 timers [active] = timers [timercnt + HEAP0];
2353 adjustheap (timers, timercnt, active); 2698 adjustheap (timers, timercnt, active);
2354 } 2699 }
2355 } 2700 }
2356 2701
2357 EV_FREQUENT_CHECK;
2358
2359 ev_at (w) -= mn_now; 2702 ev_at (w) -= mn_now;
2360 2703
2361 ev_stop (EV_A_ (W)w); 2704 ev_stop (EV_A_ (W)w);
2705
2706 EV_FREQUENT_CHECK;
2362} 2707}
2363 2708
2364void noinline 2709void noinline
2365ev_timer_again (EV_P_ ev_timer *w) 2710ev_timer_again (EV_P_ ev_timer *w)
2366{ 2711{
… …
2384 } 2729 }
2385 2730
2386 EV_FREQUENT_CHECK; 2731 EV_FREQUENT_CHECK;
2387} 2732}
2388 2733
2734ev_tstamp
2735ev_timer_remaining (EV_P_ ev_timer *w)
2736{
2737 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2738}
2739
2389#if EV_PERIODIC_ENABLE 2740#if EV_PERIODIC_ENABLE
2390void noinline 2741void noinline
2391ev_periodic_start (EV_P_ ev_periodic *w) 2742ev_periodic_start (EV_P_ ev_periodic *w)
2392{ 2743{
2393 if (expect_false (ev_is_active (w))) 2744 if (expect_false (ev_is_active (w)))
… …
2439 periodics [active] = periodics [periodiccnt + HEAP0]; 2790 periodics [active] = periodics [periodiccnt + HEAP0];
2440 adjustheap (periodics, periodiccnt, active); 2791 adjustheap (periodics, periodiccnt, active);
2441 } 2792 }
2442 } 2793 }
2443 2794
2444 EV_FREQUENT_CHECK;
2445
2446 ev_stop (EV_A_ (W)w); 2795 ev_stop (EV_A_ (W)w);
2796
2797 EV_FREQUENT_CHECK;
2447} 2798}
2448 2799
2449void noinline 2800void noinline
2450ev_periodic_again (EV_P_ ev_periodic *w) 2801ev_periodic_again (EV_P_ ev_periodic *w)
2451{ 2802{
… …
2457 2808
2458#ifndef SA_RESTART 2809#ifndef SA_RESTART
2459# define SA_RESTART 0 2810# define SA_RESTART 0
2460#endif 2811#endif
2461 2812
2813#if EV_SIGNAL_ENABLE
2814
2462void noinline 2815void noinline
2463ev_signal_start (EV_P_ ev_signal *w) 2816ev_signal_start (EV_P_ ev_signal *w)
2464{ 2817{
2465#if EV_MULTIPLICITY
2466 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2467#endif
2468 if (expect_false (ev_is_active (w))) 2818 if (expect_false (ev_is_active (w)))
2469 return; 2819 return;
2470 2820
2471 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 2821 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2472 2822
2473 evpipe_init (EV_A); 2823#if EV_MULTIPLICITY
2824 assert (("libev: a signal must not be attached to two different loops",
2825 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2474 2826
2475 EV_FREQUENT_CHECK; 2827 signals [w->signum - 1].loop = EV_A;
2828#endif
2476 2829
2830 EV_FREQUENT_CHECK;
2831
2832#if EV_USE_SIGNALFD
2833 if (sigfd == -2)
2477 { 2834 {
2478#ifndef _WIN32 2835 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2479 sigset_t full, prev; 2836 if (sigfd < 0 && errno == EINVAL)
2480 sigfillset (&full); 2837 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2481 sigprocmask (SIG_SETMASK, &full, &prev);
2482#endif
2483 2838
2484 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 2839 if (sigfd >= 0)
2840 {
2841 fd_intern (sigfd); /* doing it twice will not hurt */
2485 2842
2486#ifndef _WIN32 2843 sigemptyset (&sigfd_set);
2487 sigprocmask (SIG_SETMASK, &prev, 0); 2844
2488#endif 2845 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2846 ev_set_priority (&sigfd_w, EV_MAXPRI);
2847 ev_io_start (EV_A_ &sigfd_w);
2848 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2849 }
2489 } 2850 }
2851
2852 if (sigfd >= 0)
2853 {
2854 /* TODO: check .head */
2855 sigaddset (&sigfd_set, w->signum);
2856 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2857
2858 signalfd (sigfd, &sigfd_set, 0);
2859 }
2860#endif
2490 2861
2491 ev_start (EV_A_ (W)w, 1); 2862 ev_start (EV_A_ (W)w, 1);
2492 wlist_add (&signals [w->signum - 1].head, (WL)w); 2863 wlist_add (&signals [w->signum - 1].head, (WL)w);
2493 2864
2494 if (!((WL)w)->next) 2865 if (!((WL)w)->next)
2866# if EV_USE_SIGNALFD
2867 if (sigfd < 0) /*TODO*/
2868# endif
2495 { 2869 {
2496#if _WIN32 2870# ifdef _WIN32
2871 evpipe_init (EV_A);
2872
2497 signal (w->signum, ev_sighandler); 2873 signal (w->signum, ev_sighandler);
2498#else 2874# else
2499 struct sigaction sa; 2875 struct sigaction sa;
2876
2877 evpipe_init (EV_A);
2878
2500 sa.sa_handler = ev_sighandler; 2879 sa.sa_handler = ev_sighandler;
2501 sigfillset (&sa.sa_mask); 2880 sigfillset (&sa.sa_mask);
2502 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2881 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2503 sigaction (w->signum, &sa, 0); 2882 sigaction (w->signum, &sa, 0);
2883
2884 sigemptyset (&sa.sa_mask);
2885 sigaddset (&sa.sa_mask, w->signum);
2886 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2504#endif 2887#endif
2505 } 2888 }
2506 2889
2507 EV_FREQUENT_CHECK; 2890 EV_FREQUENT_CHECK;
2508} 2891}
2509 2892
2510void noinline 2893void noinline
… …
2518 2901
2519 wlist_del (&signals [w->signum - 1].head, (WL)w); 2902 wlist_del (&signals [w->signum - 1].head, (WL)w);
2520 ev_stop (EV_A_ (W)w); 2903 ev_stop (EV_A_ (W)w);
2521 2904
2522 if (!signals [w->signum - 1].head) 2905 if (!signals [w->signum - 1].head)
2906 {
2907#if EV_MULTIPLICITY
2908 signals [w->signum - 1].loop = 0; /* unattach from signal */
2909#endif
2910#if EV_USE_SIGNALFD
2911 if (sigfd >= 0)
2912 {
2913 sigset_t ss;
2914
2915 sigemptyset (&ss);
2916 sigaddset (&ss, w->signum);
2917 sigdelset (&sigfd_set, w->signum);
2918
2919 signalfd (sigfd, &sigfd_set, 0);
2920 sigprocmask (SIG_UNBLOCK, &ss, 0);
2921 }
2922 else
2923#endif
2523 signal (w->signum, SIG_DFL); 2924 signal (w->signum, SIG_DFL);
2925 }
2524 2926
2525 EV_FREQUENT_CHECK; 2927 EV_FREQUENT_CHECK;
2526} 2928}
2929
2930#endif
2931
2932#if EV_CHILD_ENABLE
2527 2933
2528void 2934void
2529ev_child_start (EV_P_ ev_child *w) 2935ev_child_start (EV_P_ ev_child *w)
2530{ 2936{
2531#if EV_MULTIPLICITY 2937#if EV_MULTIPLICITY
… …
2535 return; 2941 return;
2536 2942
2537 EV_FREQUENT_CHECK; 2943 EV_FREQUENT_CHECK;
2538 2944
2539 ev_start (EV_A_ (W)w, 1); 2945 ev_start (EV_A_ (W)w, 1);
2540 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2946 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2541 2947
2542 EV_FREQUENT_CHECK; 2948 EV_FREQUENT_CHECK;
2543} 2949}
2544 2950
2545void 2951void
… …
2549 if (expect_false (!ev_is_active (w))) 2955 if (expect_false (!ev_is_active (w)))
2550 return; 2956 return;
2551 2957
2552 EV_FREQUENT_CHECK; 2958 EV_FREQUENT_CHECK;
2553 2959
2554 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2960 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2555 ev_stop (EV_A_ (W)w); 2961 ev_stop (EV_A_ (W)w);
2556 2962
2557 EV_FREQUENT_CHECK; 2963 EV_FREQUENT_CHECK;
2558} 2964}
2965
2966#endif
2559 2967
2560#if EV_STAT_ENABLE 2968#if EV_STAT_ENABLE
2561 2969
2562# ifdef _WIN32 2970# ifdef _WIN32
2563# undef lstat 2971# undef lstat
… …
2569#define MIN_STAT_INTERVAL 0.1074891 2977#define MIN_STAT_INTERVAL 0.1074891
2570 2978
2571static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2979static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2572 2980
2573#if EV_USE_INOTIFY 2981#if EV_USE_INOTIFY
2574# define EV_INOTIFY_BUFSIZE 8192 2982
2983/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
2984# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2575 2985
2576static void noinline 2986static void noinline
2577infy_add (EV_P_ ev_stat *w) 2987infy_add (EV_P_ ev_stat *w)
2578{ 2988{
2579 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); 2989 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);
2580 2990
2581 if (w->wd < 0) 2991 if (w->wd >= 0)
2992 {
2993 struct statfs sfs;
2994
2995 /* now local changes will be tracked by inotify, but remote changes won't */
2996 /* unless the filesystem is known to be local, we therefore still poll */
2997 /* also do poll on <2.6.25, but with normal frequency */
2998
2999 if (!fs_2625)
3000 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3001 else if (!statfs (w->path, &sfs)
3002 && (sfs.f_type == 0x1373 /* devfs */
3003 || sfs.f_type == 0xEF53 /* ext2/3 */
3004 || sfs.f_type == 0x3153464a /* jfs */
3005 || sfs.f_type == 0x52654973 /* reiser3 */
3006 || sfs.f_type == 0x01021994 /* tempfs */
3007 || sfs.f_type == 0x58465342 /* xfs */))
3008 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3009 else
3010 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2582 { 3011 }
3012 else
3013 {
3014 /* can't use inotify, continue to stat */
2583 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3015 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2584 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2585 3016
2586 /* monitor some parent directory for speedup hints */ 3017 /* if path is not there, monitor some parent directory for speedup hints */
2587 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3018 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2588 /* but an efficiency issue only */ 3019 /* but an efficiency issue only */
2589 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3020 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2590 { 3021 {
2591 char path [4096]; 3022 char path [4096];
… …
2607 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3038 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2608 } 3039 }
2609 } 3040 }
2610 3041
2611 if (w->wd >= 0) 3042 if (w->wd >= 0)
2612 {
2613 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3043 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2614 3044
2615 /* now local changes will be tracked by inotify, but remote changes won't */ 3045 /* now re-arm timer, if required */
2616 /* unless the filesystem it known to be local, we therefore still poll */ 3046 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2617 /* also do poll on <2.6.25, but with normal frequency */
2618 struct statfs sfs;
2619
2620 if (fs_2625 && !statfs (w->path, &sfs))
2621 if (sfs.f_type == 0x1373 /* devfs */
2622 || sfs.f_type == 0xEF53 /* ext2/3 */
2623 || sfs.f_type == 0x3153464a /* jfs */
2624 || sfs.f_type == 0x52654973 /* reiser3 */
2625 || sfs.f_type == 0x01021994 /* tempfs */
2626 || sfs.f_type == 0x58465342 /* xfs */)
2627 return;
2628
2629 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2630 ev_timer_again (EV_A_ &w->timer); 3047 ev_timer_again (EV_A_ &w->timer);
2631 } 3048 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2632} 3049}
2633 3050
2634static void noinline 3051static void noinline
2635infy_del (EV_P_ ev_stat *w) 3052infy_del (EV_P_ ev_stat *w)
2636{ 3053{
… …
2639 3056
2640 if (wd < 0) 3057 if (wd < 0)
2641 return; 3058 return;
2642 3059
2643 w->wd = -2; 3060 w->wd = -2;
2644 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3061 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2645 wlist_del (&fs_hash [slot].head, (WL)w); 3062 wlist_del (&fs_hash [slot].head, (WL)w);
2646 3063
2647 /* remove this watcher, if others are watching it, they will rearm */ 3064 /* remove this watcher, if others are watching it, they will rearm */
2648 inotify_rm_watch (fs_fd, wd); 3065 inotify_rm_watch (fs_fd, wd);
2649} 3066}
… …
2651static void noinline 3068static void noinline
2652infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3069infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2653{ 3070{
2654 if (slot < 0) 3071 if (slot < 0)
2655 /* overflow, need to check for all hash slots */ 3072 /* overflow, need to check for all hash slots */
2656 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3073 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2657 infy_wd (EV_A_ slot, wd, ev); 3074 infy_wd (EV_A_ slot, wd, ev);
2658 else 3075 else
2659 { 3076 {
2660 WL w_; 3077 WL w_;
2661 3078
2662 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3079 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2663 { 3080 {
2664 ev_stat *w = (ev_stat *)w_; 3081 ev_stat *w = (ev_stat *)w_;
2665 w_ = w_->next; /* lets us remove this watcher and all before it */ 3082 w_ = w_->next; /* lets us remove this watcher and all before it */
2666 3083
2667 if (w->wd == wd || wd == -1) 3084 if (w->wd == wd || wd == -1)
2668 { 3085 {
2669 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3086 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2670 { 3087 {
2671 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3088 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2672 w->wd = -1; 3089 w->wd = -1;
2673 infy_add (EV_A_ w); /* re-add, no matter what */ 3090 infy_add (EV_A_ w); /* re-add, no matter what */
2674 } 3091 }
2675 3092
2676 stat_timer_cb (EV_A_ &w->timer, 0); 3093 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2681 3098
2682static void 3099static void
2683infy_cb (EV_P_ ev_io *w, int revents) 3100infy_cb (EV_P_ ev_io *w, int revents)
2684{ 3101{
2685 char buf [EV_INOTIFY_BUFSIZE]; 3102 char buf [EV_INOTIFY_BUFSIZE];
2686 struct inotify_event *ev = (struct inotify_event *)buf;
2687 int ofs; 3103 int ofs;
2688 int len = read (fs_fd, buf, sizeof (buf)); 3104 int len = read (fs_fd, buf, sizeof (buf));
2689 3105
2690 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3106 for (ofs = 0; ofs < len; )
3107 {
3108 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2691 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3109 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3110 ofs += sizeof (struct inotify_event) + ev->len;
3111 }
2692} 3112}
2693 3113
2694inline_size void 3114inline_size void
2695check_2625 (EV_P) 3115ev_check_2625 (EV_P)
2696{ 3116{
2697 /* kernels < 2.6.25 are borked 3117 /* kernels < 2.6.25 are borked
2698 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3118 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2699 */ 3119 */
2700 struct utsname buf; 3120 if (ev_linux_version () < 0x020619)
2701 int major, minor, micro;
2702
2703 if (uname (&buf))
2704 return; 3121 return;
2705 3122
2706 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2707 return;
2708
2709 if (major < 2
2710 || (major == 2 && minor < 6)
2711 || (major == 2 && minor == 6 && micro < 25))
2712 return;
2713
2714 fs_2625 = 1; 3123 fs_2625 = 1;
3124}
3125
3126inline_size int
3127infy_newfd (void)
3128{
3129#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3130 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3131 if (fd >= 0)
3132 return fd;
3133#endif
3134 return inotify_init ();
2715} 3135}
2716 3136
2717inline_size void 3137inline_size void
2718infy_init (EV_P) 3138infy_init (EV_P)
2719{ 3139{
2720 if (fs_fd != -2) 3140 if (fs_fd != -2)
2721 return; 3141 return;
2722 3142
2723 fs_fd = -1; 3143 fs_fd = -1;
2724 3144
2725 check_2625 (EV_A); 3145 ev_check_2625 (EV_A);
2726 3146
2727 fs_fd = inotify_init (); 3147 fs_fd = infy_newfd ();
2728 3148
2729 if (fs_fd >= 0) 3149 if (fs_fd >= 0)
2730 { 3150 {
3151 fd_intern (fs_fd);
2731 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3152 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2732 ev_set_priority (&fs_w, EV_MAXPRI); 3153 ev_set_priority (&fs_w, EV_MAXPRI);
2733 ev_io_start (EV_A_ &fs_w); 3154 ev_io_start (EV_A_ &fs_w);
3155 ev_unref (EV_A);
2734 } 3156 }
2735} 3157}
2736 3158
2737inline_size void 3159inline_size void
2738infy_fork (EV_P) 3160infy_fork (EV_P)
… …
2740 int slot; 3162 int slot;
2741 3163
2742 if (fs_fd < 0) 3164 if (fs_fd < 0)
2743 return; 3165 return;
2744 3166
3167 ev_ref (EV_A);
3168 ev_io_stop (EV_A_ &fs_w);
2745 close (fs_fd); 3169 close (fs_fd);
2746 fs_fd = inotify_init (); 3170 fs_fd = infy_newfd ();
2747 3171
3172 if (fs_fd >= 0)
3173 {
3174 fd_intern (fs_fd);
3175 ev_io_set (&fs_w, fs_fd, EV_READ);
3176 ev_io_start (EV_A_ &fs_w);
3177 ev_unref (EV_A);
3178 }
3179
2748 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3180 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2749 { 3181 {
2750 WL w_ = fs_hash [slot].head; 3182 WL w_ = fs_hash [slot].head;
2751 fs_hash [slot].head = 0; 3183 fs_hash [slot].head = 0;
2752 3184
2753 while (w_) 3185 while (w_)
… …
2758 w->wd = -1; 3190 w->wd = -1;
2759 3191
2760 if (fs_fd >= 0) 3192 if (fs_fd >= 0)
2761 infy_add (EV_A_ w); /* re-add, no matter what */ 3193 infy_add (EV_A_ w); /* re-add, no matter what */
2762 else 3194 else
3195 {
3196 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3197 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2763 ev_timer_again (EV_A_ &w->timer); 3198 ev_timer_again (EV_A_ &w->timer);
3199 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3200 }
2764 } 3201 }
2765 } 3202 }
2766} 3203}
2767 3204
2768#endif 3205#endif
… …
2785static void noinline 3222static void noinline
2786stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3223stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2787{ 3224{
2788 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3225 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2789 3226
2790 /* we copy this here each the time so that */ 3227 ev_statdata prev = w->attr;
2791 /* prev has the old value when the callback gets invoked */
2792 w->prev = w->attr;
2793 ev_stat_stat (EV_A_ w); 3228 ev_stat_stat (EV_A_ w);
2794 3229
2795 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3230 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2796 if ( 3231 if (
2797 w->prev.st_dev != w->attr.st_dev 3232 prev.st_dev != w->attr.st_dev
2798 || w->prev.st_ino != w->attr.st_ino 3233 || prev.st_ino != w->attr.st_ino
2799 || w->prev.st_mode != w->attr.st_mode 3234 || prev.st_mode != w->attr.st_mode
2800 || w->prev.st_nlink != w->attr.st_nlink 3235 || prev.st_nlink != w->attr.st_nlink
2801 || w->prev.st_uid != w->attr.st_uid 3236 || prev.st_uid != w->attr.st_uid
2802 || w->prev.st_gid != w->attr.st_gid 3237 || prev.st_gid != w->attr.st_gid
2803 || w->prev.st_rdev != w->attr.st_rdev 3238 || prev.st_rdev != w->attr.st_rdev
2804 || w->prev.st_size != w->attr.st_size 3239 || prev.st_size != w->attr.st_size
2805 || w->prev.st_atime != w->attr.st_atime 3240 || prev.st_atime != w->attr.st_atime
2806 || w->prev.st_mtime != w->attr.st_mtime 3241 || prev.st_mtime != w->attr.st_mtime
2807 || w->prev.st_ctime != w->attr.st_ctime 3242 || prev.st_ctime != w->attr.st_ctime
2808 ) { 3243 ) {
3244 /* we only update w->prev on actual differences */
3245 /* in case we test more often than invoke the callback, */
3246 /* to ensure that prev is always different to attr */
3247 w->prev = prev;
3248
2809 #if EV_USE_INOTIFY 3249 #if EV_USE_INOTIFY
2810 if (fs_fd >= 0) 3250 if (fs_fd >= 0)
2811 { 3251 {
2812 infy_del (EV_A_ w); 3252 infy_del (EV_A_ w);
2813 infy_add (EV_A_ w); 3253 infy_add (EV_A_ w);
… …
2838 3278
2839 if (fs_fd >= 0) 3279 if (fs_fd >= 0)
2840 infy_add (EV_A_ w); 3280 infy_add (EV_A_ w);
2841 else 3281 else
2842#endif 3282#endif
3283 {
2843 ev_timer_again (EV_A_ &w->timer); 3284 ev_timer_again (EV_A_ &w->timer);
3285 ev_unref (EV_A);
3286 }
2844 3287
2845 ev_start (EV_A_ (W)w, 1); 3288 ev_start (EV_A_ (W)w, 1);
2846 3289
2847 EV_FREQUENT_CHECK; 3290 EV_FREQUENT_CHECK;
2848} 3291}
… …
2857 EV_FREQUENT_CHECK; 3300 EV_FREQUENT_CHECK;
2858 3301
2859#if EV_USE_INOTIFY 3302#if EV_USE_INOTIFY
2860 infy_del (EV_A_ w); 3303 infy_del (EV_A_ w);
2861#endif 3304#endif
3305
3306 if (ev_is_active (&w->timer))
3307 {
3308 ev_ref (EV_A);
2862 ev_timer_stop (EV_A_ &w->timer); 3309 ev_timer_stop (EV_A_ &w->timer);
3310 }
2863 3311
2864 ev_stop (EV_A_ (W)w); 3312 ev_stop (EV_A_ (W)w);
2865 3313
2866 EV_FREQUENT_CHECK; 3314 EV_FREQUENT_CHECK;
2867} 3315}
… …
2912 3360
2913 EV_FREQUENT_CHECK; 3361 EV_FREQUENT_CHECK;
2914} 3362}
2915#endif 3363#endif
2916 3364
3365#if EV_PREPARE_ENABLE
2917void 3366void
2918ev_prepare_start (EV_P_ ev_prepare *w) 3367ev_prepare_start (EV_P_ ev_prepare *w)
2919{ 3368{
2920 if (expect_false (ev_is_active (w))) 3369 if (expect_false (ev_is_active (w)))
2921 return; 3370 return;
… …
2947 3396
2948 ev_stop (EV_A_ (W)w); 3397 ev_stop (EV_A_ (W)w);
2949 3398
2950 EV_FREQUENT_CHECK; 3399 EV_FREQUENT_CHECK;
2951} 3400}
3401#endif
2952 3402
3403#if EV_CHECK_ENABLE
2953void 3404void
2954ev_check_start (EV_P_ ev_check *w) 3405ev_check_start (EV_P_ ev_check *w)
2955{ 3406{
2956 if (expect_false (ev_is_active (w))) 3407 if (expect_false (ev_is_active (w)))
2957 return; 3408 return;
… …
2983 3434
2984 ev_stop (EV_A_ (W)w); 3435 ev_stop (EV_A_ (W)w);
2985 3436
2986 EV_FREQUENT_CHECK; 3437 EV_FREQUENT_CHECK;
2987} 3438}
3439#endif
2988 3440
2989#if EV_EMBED_ENABLE 3441#if EV_EMBED_ENABLE
2990void noinline 3442void noinline
2991ev_embed_sweep (EV_P_ ev_embed *w) 3443ev_embed_sweep (EV_P_ ev_embed *w)
2992{ 3444{
2993 ev_loop (w->other, EVLOOP_NONBLOCK); 3445 ev_run (w->other, EVRUN_NOWAIT);
2994} 3446}
2995 3447
2996static void 3448static void
2997embed_io_cb (EV_P_ ev_io *io, int revents) 3449embed_io_cb (EV_P_ ev_io *io, int revents)
2998{ 3450{
2999 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3451 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3000 3452
3001 if (ev_cb (w)) 3453 if (ev_cb (w))
3002 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3454 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3003 else 3455 else
3004 ev_loop (w->other, EVLOOP_NONBLOCK); 3456 ev_run (w->other, EVRUN_NOWAIT);
3005} 3457}
3006 3458
3007static void 3459static void
3008embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3460embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3009{ 3461{
3010 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3462 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3011 3463
3012 { 3464 {
3013 struct ev_loop *loop = w->other; 3465 EV_P = w->other;
3014 3466
3015 while (fdchangecnt) 3467 while (fdchangecnt)
3016 { 3468 {
3017 fd_reify (EV_A); 3469 fd_reify (EV_A);
3018 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3470 ev_run (EV_A_ EVRUN_NOWAIT);
3019 } 3471 }
3020 } 3472 }
3021} 3473}
3022 3474
3023static void 3475static void
… …
3026 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3478 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3027 3479
3028 ev_embed_stop (EV_A_ w); 3480 ev_embed_stop (EV_A_ w);
3029 3481
3030 { 3482 {
3031 struct ev_loop *loop = w->other; 3483 EV_P = w->other;
3032 3484
3033 ev_loop_fork (EV_A); 3485 ev_loop_fork (EV_A);
3034 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3486 ev_run (EV_A_ EVRUN_NOWAIT);
3035 } 3487 }
3036 3488
3037 ev_embed_start (EV_A_ w); 3489 ev_embed_start (EV_A_ w);
3038} 3490}
3039 3491
… …
3050{ 3502{
3051 if (expect_false (ev_is_active (w))) 3503 if (expect_false (ev_is_active (w)))
3052 return; 3504 return;
3053 3505
3054 { 3506 {
3055 struct ev_loop *loop = w->other; 3507 EV_P = w->other;
3056 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3508 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3057 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3509 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3058 } 3510 }
3059 3511
3060 EV_FREQUENT_CHECK; 3512 EV_FREQUENT_CHECK;
… …
3087 3539
3088 ev_io_stop (EV_A_ &w->io); 3540 ev_io_stop (EV_A_ &w->io);
3089 ev_prepare_stop (EV_A_ &w->prepare); 3541 ev_prepare_stop (EV_A_ &w->prepare);
3090 ev_fork_stop (EV_A_ &w->fork); 3542 ev_fork_stop (EV_A_ &w->fork);
3091 3543
3544 ev_stop (EV_A_ (W)w);
3545
3092 EV_FREQUENT_CHECK; 3546 EV_FREQUENT_CHECK;
3093} 3547}
3094#endif 3548#endif
3095 3549
3096#if EV_FORK_ENABLE 3550#if EV_FORK_ENABLE
… …
3129 3583
3130 EV_FREQUENT_CHECK; 3584 EV_FREQUENT_CHECK;
3131} 3585}
3132#endif 3586#endif
3133 3587
3134#if EV_ASYNC_ENABLE 3588#if EV_CLEANUP_ENABLE
3135void 3589void
3136ev_async_start (EV_P_ ev_async *w) 3590ev_cleanup_start (EV_P_ ev_cleanup *w)
3137{ 3591{
3138 if (expect_false (ev_is_active (w))) 3592 if (expect_false (ev_is_active (w)))
3139 return; 3593 return;
3594
3595 EV_FREQUENT_CHECK;
3596
3597 ev_start (EV_A_ (W)w, ++cleanupcnt);
3598 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3599 cleanups [cleanupcnt - 1] = w;
3600
3601 /* cleanup watchers should never keep a refcount on the loop */
3602 ev_unref (EV_A);
3603 EV_FREQUENT_CHECK;
3604}
3605
3606void
3607ev_cleanup_stop (EV_P_ ev_cleanup *w)
3608{
3609 clear_pending (EV_A_ (W)w);
3610 if (expect_false (!ev_is_active (w)))
3611 return;
3612
3613 EV_FREQUENT_CHECK;
3614 ev_ref (EV_A);
3615
3616 {
3617 int active = ev_active (w);
3618
3619 cleanups [active - 1] = cleanups [--cleanupcnt];
3620 ev_active (cleanups [active - 1]) = active;
3621 }
3622
3623 ev_stop (EV_A_ (W)w);
3624
3625 EV_FREQUENT_CHECK;
3626}
3627#endif
3628
3629#if EV_ASYNC_ENABLE
3630void
3631ev_async_start (EV_P_ ev_async *w)
3632{
3633 if (expect_false (ev_is_active (w)))
3634 return;
3635
3636 w->sent = 0;
3140 3637
3141 evpipe_init (EV_A); 3638 evpipe_init (EV_A);
3142 3639
3143 EV_FREQUENT_CHECK; 3640 EV_FREQUENT_CHECK;
3144 3641
… …
3172 3669
3173void 3670void
3174ev_async_send (EV_P_ ev_async *w) 3671ev_async_send (EV_P_ ev_async *w)
3175{ 3672{
3176 w->sent = 1; 3673 w->sent = 1;
3177 evpipe_write (EV_A_ &gotasync); 3674 evpipe_write (EV_A_ &async_pending);
3178} 3675}
3179#endif 3676#endif
3180 3677
3181/*****************************************************************************/ 3678/*****************************************************************************/
3182 3679
… …
3222{ 3719{
3223 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3720 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3224 3721
3225 if (expect_false (!once)) 3722 if (expect_false (!once))
3226 { 3723 {
3227 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3724 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3228 return; 3725 return;
3229 } 3726 }
3230 3727
3231 once->cb = cb; 3728 once->cb = cb;
3232 once->arg = arg; 3729 once->arg = arg;
… …
3319 if (types & EV_ASYNC) 3816 if (types & EV_ASYNC)
3320 for (i = asynccnt; i--; ) 3817 for (i = asynccnt; i--; )
3321 cb (EV_A_ EV_ASYNC, asyncs [i]); 3818 cb (EV_A_ EV_ASYNC, asyncs [i]);
3322#endif 3819#endif
3323 3820
3821#if EV_PREPARE_ENABLE
3324 if (types & EV_PREPARE) 3822 if (types & EV_PREPARE)
3325 for (i = preparecnt; i--; ) 3823 for (i = preparecnt; i--; )
3326#if EV_EMBED_ENABLE 3824# if EV_EMBED_ENABLE
3327 if (ev_cb (prepares [i]) != embed_prepare_cb) 3825 if (ev_cb (prepares [i]) != embed_prepare_cb)
3328#endif 3826# endif
3329 cb (EV_A_ EV_PREPARE, prepares [i]); 3827 cb (EV_A_ EV_PREPARE, prepares [i]);
3828#endif
3330 3829
3830#if EV_CHECK_ENABLE
3331 if (types & EV_CHECK) 3831 if (types & EV_CHECK)
3332 for (i = checkcnt; i--; ) 3832 for (i = checkcnt; i--; )
3333 cb (EV_A_ EV_CHECK, checks [i]); 3833 cb (EV_A_ EV_CHECK, checks [i]);
3834#endif
3334 3835
3836#if EV_SIGNAL_ENABLE
3335 if (types & EV_SIGNAL) 3837 if (types & EV_SIGNAL)
3336 for (i = 0; i < signalmax; ++i) 3838 for (i = 0; i < EV_NSIG - 1; ++i)
3337 for (wl = signals [i].head; wl; ) 3839 for (wl = signals [i].head; wl; )
3338 { 3840 {
3339 wn = wl->next; 3841 wn = wl->next;
3340 cb (EV_A_ EV_SIGNAL, wl); 3842 cb (EV_A_ EV_SIGNAL, wl);
3341 wl = wn; 3843 wl = wn;
3342 } 3844 }
3845#endif
3343 3846
3847#if EV_CHILD_ENABLE
3344 if (types & EV_CHILD) 3848 if (types & EV_CHILD)
3345 for (i = EV_PID_HASHSIZE; i--; ) 3849 for (i = (EV_PID_HASHSIZE); i--; )
3346 for (wl = childs [i]; wl; ) 3850 for (wl = childs [i]; wl; )
3347 { 3851 {
3348 wn = wl->next; 3852 wn = wl->next;
3349 cb (EV_A_ EV_CHILD, wl); 3853 cb (EV_A_ EV_CHILD, wl);
3350 wl = wn; 3854 wl = wn;
3351 } 3855 }
3856#endif
3352/* EV_STAT 0x00001000 /* stat data changed */ 3857/* EV_STAT 0x00001000 /* stat data changed */
3353/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3858/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3354} 3859}
3355#endif 3860#endif
3356 3861
3357#if EV_MULTIPLICITY 3862#if EV_MULTIPLICITY
3358 #include "ev_wrap.h" 3863 #include "ev_wrap.h"
3359#endif 3864#endif
3360 3865
3361#ifdef __cplusplus 3866EV_CPP(})
3362}
3363#endif
3364 3867

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