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Comparing libev/ev.c (file contents):
Revision 1.295 by root, Wed Jul 8 04:29:31 2009 UTC vs.
Revision 1.371 by root, Mon Feb 7 21:45:32 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
… …
77# ifndef EV_USE_REALTIME 73# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 74# define EV_USE_REALTIME 0
79# endif 75# endif
80# endif 76# endif
81 77
78# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 79# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 80# define EV_USE_NANOSLEEP EV_FEATURE_OS
81# endif
85# else 82# else
83# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 84# define EV_USE_NANOSLEEP 0
85# endif
86
87# if HAVE_SELECT && HAVE_SYS_SELECT_H
88# ifndef EV_USE_SELECT
89# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 90# endif
91# else
92# undef EV_USE_SELECT
93# define EV_USE_SELECT 0
88# endif 94# endif
89 95
96# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 97# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 98# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 99# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 100# else
101# undef EV_USE_POLL
102# define EV_USE_POLL 0 102# define EV_USE_POLL 0
103# endif
104# endif 103# endif
105 104
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 106# ifndef EV_USE_EPOLL
109# else 107# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 108# endif
109# else
110# undef EV_USE_EPOLL
111# define EV_USE_EPOLL 0
112# endif 112# endif
113 113
114# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 115# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 117# endif
118# else
119# undef EV_USE_KQUEUE
120# define EV_USE_KQUEUE 0
120# endif 121# endif
121 122
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 123# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 124# ifndef EV_USE_PORT
125# else 125# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 126# endif
127# else
128# undef EV_USE_PORT
129# define EV_USE_PORT 0
128# endif 130# endif
129 131
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 132# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 133# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 135# endif
136# else
137# undef EV_USE_INOTIFY
138# define EV_USE_INOTIFY 0
136# endif 139# endif
137 140
141# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138# ifndef EV_USE_EVENTFD 142# ifndef EV_USE_SIGNALFD
139# if HAVE_EVENTFD 143# define EV_USE_SIGNALFD EV_FEATURE_OS
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# endif 144# endif
145# else
146# undef EV_USE_SIGNALFD
147# define EV_USE_SIGNALFD 0
148# endif
149
150# if HAVE_EVENTFD
151# ifndef EV_USE_EVENTFD
152# define EV_USE_EVENTFD EV_FEATURE_OS
153# endif
154# else
155# undef EV_USE_EVENTFD
156# define EV_USE_EVENTFD 0
144# endif 157# endif
145 158
146#endif 159#endif
147 160
148#include <math.h> 161#include <math.h>
149#include <stdlib.h> 162#include <stdlib.h>
163#include <string.h>
150#include <fcntl.h> 164#include <fcntl.h>
151#include <stddef.h> 165#include <stddef.h>
152 166
153#include <stdio.h> 167#include <stdio.h>
154 168
155#include <assert.h> 169#include <assert.h>
156#include <errno.h> 170#include <errno.h>
157#include <sys/types.h> 171#include <sys/types.h>
158#include <time.h> 172#include <time.h>
173#include <limits.h>
159 174
160#include <signal.h> 175#include <signal.h>
161 176
162#ifdef EV_H 177#ifdef EV_H
163# include EV_H 178# include EV_H
164#else 179#else
165# include "ev.h" 180# include "ev.h"
166#endif 181#endif
182
183EV_CPP(extern "C" {)
167 184
168#ifndef _WIN32 185#ifndef _WIN32
169# include <sys/time.h> 186# include <sys/time.h>
170# include <sys/wait.h> 187# include <sys/wait.h>
171# include <unistd.h> 188# include <unistd.h>
… …
174# define WIN32_LEAN_AND_MEAN 191# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 192# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 193# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 194# define EV_SELECT_IS_WINSOCKET 1
178# endif 195# endif
196# undef EV_AVOID_STDIO
179#endif 197#endif
198
199/* OS X, in its infinite idiocy, actually HARDCODES
200 * a limit of 1024 into their select. Where people have brains,
201 * OS X engineers apparently have a vacuum. Or maybe they were
202 * ordered to have a vacuum, or they do anything for money.
203 * This might help. Or not.
204 */
205#define _DARWIN_UNLIMITED_SELECT 1
180 206
181/* this block tries to deduce configuration from header-defined symbols and defaults */ 207/* this block tries to deduce configuration from header-defined symbols and defaults */
208
209/* try to deduce the maximum number of signals on this platform */
210#if defined (EV_NSIG)
211/* use what's provided */
212#elif defined (NSIG)
213# define EV_NSIG (NSIG)
214#elif defined(_NSIG)
215# define EV_NSIG (_NSIG)
216#elif defined (SIGMAX)
217# define EV_NSIG (SIGMAX+1)
218#elif defined (SIG_MAX)
219# define EV_NSIG (SIG_MAX+1)
220#elif defined (_SIG_MAX)
221# define EV_NSIG (_SIG_MAX+1)
222#elif defined (MAXSIG)
223# define EV_NSIG (MAXSIG+1)
224#elif defined (MAX_SIG)
225# define EV_NSIG (MAX_SIG+1)
226#elif defined (SIGARRAYSIZE)
227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
228#elif defined (_sys_nsig)
229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
230#else
231# error "unable to find value for NSIG, please report"
232/* to make it compile regardless, just remove the above line, */
233/* but consider reporting it, too! :) */
234# define EV_NSIG 65
235#endif
182 236
183#ifndef EV_USE_CLOCK_SYSCALL 237#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 238# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 240# else
187# define EV_USE_CLOCK_SYSCALL 0 241# define EV_USE_CLOCK_SYSCALL 0
188# endif 242# endif
189#endif 243#endif
190 244
191#ifndef EV_USE_MONOTONIC 245#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 247# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 248# else
195# define EV_USE_MONOTONIC 0 249# define EV_USE_MONOTONIC 0
196# endif 250# endif
197#endif 251#endif
198 252
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 254# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 255#endif
202 256
203#ifndef EV_USE_NANOSLEEP 257#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 258# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 259# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 260# else
207# define EV_USE_NANOSLEEP 0 261# define EV_USE_NANOSLEEP 0
208# endif 262# endif
209#endif 263#endif
210 264
211#ifndef EV_USE_SELECT 265#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 266# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 267#endif
214 268
215#ifndef EV_USE_POLL 269#ifndef EV_USE_POLL
216# ifdef _WIN32 270# ifdef _WIN32
217# define EV_USE_POLL 0 271# define EV_USE_POLL 0
218# else 272# else
219# define EV_USE_POLL 1 273# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 274# endif
221#endif 275#endif
222 276
223#ifndef EV_USE_EPOLL 277#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 279# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 280# else
227# define EV_USE_EPOLL 0 281# define EV_USE_EPOLL 0
228# endif 282# endif
229#endif 283#endif
230 284
… …
236# define EV_USE_PORT 0 290# define EV_USE_PORT 0
237#endif 291#endif
238 292
239#ifndef EV_USE_INOTIFY 293#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 295# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 296# else
243# define EV_USE_INOTIFY 0 297# define EV_USE_INOTIFY 0
244# endif 298# endif
245#endif 299#endif
246 300
247#ifndef EV_PID_HASHSIZE 301#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 302# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249# define EV_PID_HASHSIZE 1
250# else
251# define EV_PID_HASHSIZE 16
252# endif
253#endif 303#endif
254 304
255#ifndef EV_INOTIFY_HASHSIZE 305#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 306# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_INOTIFY_HASHSIZE 1
258# else
259# define EV_INOTIFY_HASHSIZE 16
260# endif
261#endif 307#endif
262 308
263#ifndef EV_USE_EVENTFD 309#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 311# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 312# else
267# define EV_USE_EVENTFD 0 313# define EV_USE_EVENTFD 0
314# endif
315#endif
316
317#ifndef EV_USE_SIGNALFD
318# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
319# define EV_USE_SIGNALFD EV_FEATURE_OS
320# else
321# define EV_USE_SIGNALFD 0
268# endif 322# endif
269#endif 323#endif
270 324
271#if 0 /* debugging */ 325#if 0 /* debugging */
272# define EV_VERIFY 3 326# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 327# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 328# define EV_HEAP_CACHE_AT 1
275#endif 329#endif
276 330
277#ifndef EV_VERIFY 331#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 332# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 333#endif
280 334
281#ifndef EV_USE_4HEAP 335#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 336# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 337#endif
284 338
285#ifndef EV_HEAP_CACHE_AT 339#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif 341#endif
288 342
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 343/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290/* which makes programs even slower. might work on other unices, too. */ 344/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 345#if EV_USE_CLOCK_SYSCALL
… …
300# endif 354# endif
301#endif 355#endif
302 356
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 357/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304 358
359#ifdef _AIX
360/* AIX has a completely broken poll.h header */
361# undef EV_USE_POLL
362# define EV_USE_POLL 0
363#endif
364
305#ifndef CLOCK_MONOTONIC 365#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 366# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 367# define EV_USE_MONOTONIC 0
308#endif 368#endif
309 369
… …
316# undef EV_USE_INOTIFY 376# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0 377# define EV_USE_INOTIFY 0
318#endif 378#endif
319 379
320#if !EV_USE_NANOSLEEP 380#if !EV_USE_NANOSLEEP
321# ifndef _WIN32 381/* hp-ux has it in sys/time.h, which we unconditionally include above */
382# if !defined(_WIN32) && !defined(__hpux)
322# include <sys/select.h> 383# include <sys/select.h>
323# endif 384# endif
324#endif 385#endif
325 386
326#if EV_USE_INOTIFY 387#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 388# include <sys/statfs.h>
329# include <sys/inotify.h> 389# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 390/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 391# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 392# undef EV_USE_INOTIFY
… …
339#endif 399#endif
340 400
341#if EV_USE_EVENTFD 401#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 402/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 403# include <stdint.h>
344# ifdef __cplusplus 404# ifndef EFD_NONBLOCK
345extern "C" { 405# define EFD_NONBLOCK O_NONBLOCK
346# endif 406# endif
347int eventfd (unsigned int initval, int flags); 407# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 408# ifdef O_CLOEXEC
349} 409# define EFD_CLOEXEC O_CLOEXEC
410# else
411# define EFD_CLOEXEC 02000000
412# endif
350# endif 413# endif
414EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
415#endif
416
417#if EV_USE_SIGNALFD
418/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
419# include <stdint.h>
420# ifndef SFD_NONBLOCK
421# define SFD_NONBLOCK O_NONBLOCK
422# endif
423# ifndef SFD_CLOEXEC
424# ifdef O_CLOEXEC
425# define SFD_CLOEXEC O_CLOEXEC
426# else
427# define SFD_CLOEXEC 02000000
428# endif
429# endif
430EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
431
432struct signalfd_siginfo
433{
434 uint32_t ssi_signo;
435 char pad[128 - sizeof (uint32_t)];
436};
351#endif 437#endif
352 438
353/**/ 439/**/
354 440
355#if EV_VERIFY >= 3 441#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 442# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 443#else
358# define EV_FREQUENT_CHECK do { } while (0) 444# define EV_FREQUENT_CHECK do { } while (0)
359#endif 445#endif
360 446
361/* 447/*
… …
368 */ 454 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 455#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
370 456
371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 457#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) */ 458#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 */ 459
460#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
461#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
374 462
375#if __GNUC__ >= 4 463#if __GNUC__ >= 4
376# define expect(expr,value) __builtin_expect ((expr),(value)) 464# define expect(expr,value) __builtin_expect ((expr),(value))
377# define noinline __attribute__ ((noinline)) 465# define noinline __attribute__ ((noinline))
378#else 466#else
… …
385 473
386#define expect_false(expr) expect ((expr) != 0, 0) 474#define expect_false(expr) expect ((expr) != 0, 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 475#define expect_true(expr) expect ((expr) != 0, 1)
388#define inline_size static inline 476#define inline_size static inline
389 477
390#if EV_MINIMAL 478#if EV_FEATURE_CODE
479# define inline_speed static inline
480#else
391# define inline_speed static noinline 481# define inline_speed static noinline
392#else
393# define inline_speed static inline
394#endif 482#endif
395 483
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 484#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397 485
398#if EV_MINPRI == EV_MAXPRI 486#if EV_MINPRI == EV_MAXPRI
… …
411#define ev_active(w) ((W)(w))->active 499#define ev_active(w) ((W)(w))->active
412#define ev_at(w) ((WT)(w))->at 500#define ev_at(w) ((WT)(w))->at
413 501
414#if EV_USE_REALTIME 502#if EV_USE_REALTIME
415/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 503/* sig_atomic_t is used to avoid per-thread variables or locking but still */
416/* giving it a reasonably high chance of working on typical architetcures */ 504/* giving it a reasonably high chance of working on typical architectures */
417static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 505static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
418#endif 506#endif
419 507
420#if EV_USE_MONOTONIC 508#if EV_USE_MONOTONIC
421static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 509static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422#endif 510#endif
423 511
512#ifndef EV_FD_TO_WIN32_HANDLE
513# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
514#endif
515#ifndef EV_WIN32_HANDLE_TO_FD
516# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
517#endif
518#ifndef EV_WIN32_CLOSE_FD
519# define EV_WIN32_CLOSE_FD(fd) close (fd)
520#endif
521
424#ifdef _WIN32 522#ifdef _WIN32
425# include "ev_win32.c" 523# include "ev_win32.c"
426#endif 524#endif
427 525
428/*****************************************************************************/ 526/*****************************************************************************/
527
528#ifdef __linux
529# include <sys/utsname.h>
530#endif
531
532static unsigned int noinline
533ev_linux_version (void)
534{
535#ifdef __linux
536 unsigned int v = 0;
537 struct utsname buf;
538 int i;
539 char *p = buf.release;
540
541 if (uname (&buf))
542 return 0;
543
544 for (i = 3+1; --i; )
545 {
546 unsigned int c = 0;
547
548 for (;;)
549 {
550 if (*p >= '0' && *p <= '9')
551 c = c * 10 + *p++ - '0';
552 else
553 {
554 p += *p == '.';
555 break;
556 }
557 }
558
559 v = (v << 8) | c;
560 }
561
562 return v;
563#else
564 return 0;
565#endif
566}
567
568/*****************************************************************************/
569
570#if EV_AVOID_STDIO
571static void noinline
572ev_printerr (const char *msg)
573{
574 write (STDERR_FILENO, msg, strlen (msg));
575}
576#endif
429 577
430static void (*syserr_cb)(const char *msg); 578static void (*syserr_cb)(const char *msg);
431 579
432void 580void
433ev_set_syserr_cb (void (*cb)(const char *msg)) 581ev_set_syserr_cb (void (*cb)(const char *msg))
… …
443 591
444 if (syserr_cb) 592 if (syserr_cb)
445 syserr_cb (msg); 593 syserr_cb (msg);
446 else 594 else
447 { 595 {
596#if EV_AVOID_STDIO
597 ev_printerr (msg);
598 ev_printerr (": ");
599 ev_printerr (strerror (errno));
600 ev_printerr ("\n");
601#else
448 perror (msg); 602 perror (msg);
603#endif
449 abort (); 604 abort ();
450 } 605 }
451} 606}
452 607
453static void * 608static void *
454ev_realloc_emul (void *ptr, long size) 609ev_realloc_emul (void *ptr, long size)
455{ 610{
611#if __GLIBC__
612 return realloc (ptr, size);
613#else
456 /* some systems, notably openbsd and darwin, fail to properly 614 /* some systems, notably openbsd and darwin, fail to properly
457 * implement realloc (x, 0) (as required by both ansi c-98 and 615 * implement realloc (x, 0) (as required by both ansi c-89 and
458 * the single unix specification, so work around them here. 616 * the single unix specification, so work around them here.
459 */ 617 */
460 618
461 if (size) 619 if (size)
462 return realloc (ptr, size); 620 return realloc (ptr, size);
463 621
464 free (ptr); 622 free (ptr);
465 return 0; 623 return 0;
624#endif
466} 625}
467 626
468static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 627static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
469 628
470void 629void
… …
478{ 637{
479 ptr = alloc (ptr, size); 638 ptr = alloc (ptr, size);
480 639
481 if (!ptr && size) 640 if (!ptr && size)
482 { 641 {
642#if EV_AVOID_STDIO
643 ev_printerr ("(libev) memory allocation failed, aborting.\n");
644#else
483 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 645 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
646#endif
484 abort (); 647 abort ();
485 } 648 }
486 649
487 return ptr; 650 return ptr;
488} 651}
… …
490#define ev_malloc(size) ev_realloc (0, (size)) 653#define ev_malloc(size) ev_realloc (0, (size))
491#define ev_free(ptr) ev_realloc ((ptr), 0) 654#define ev_free(ptr) ev_realloc ((ptr), 0)
492 655
493/*****************************************************************************/ 656/*****************************************************************************/
494 657
658/* set in reify when reification needed */
659#define EV_ANFD_REIFY 1
660
495/* file descriptor info structure */ 661/* file descriptor info structure */
496typedef struct 662typedef struct
497{ 663{
498 WL head; 664 WL head;
499 unsigned char events; /* the events watched for */ 665 unsigned char events; /* the events watched for */
500 unsigned char reify; /* flag set when this ANFD needs reification */ 666 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
501 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 667 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
502 unsigned char unused; 668 unsigned char unused;
503#if EV_USE_EPOLL 669#if EV_USE_EPOLL
504 unsigned int egen; /* generation counter to counter epoll bugs */ 670 unsigned int egen; /* generation counter to counter epoll bugs */
505#endif 671#endif
506#if EV_SELECT_IS_WINSOCKET 672#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
507 SOCKET handle; 673 SOCKET handle;
674#endif
675#if EV_USE_IOCP
676 OVERLAPPED or, ow;
508#endif 677#endif
509} ANFD; 678} ANFD;
510 679
511/* stores the pending event set for a given watcher */ 680/* stores the pending event set for a given watcher */
512typedef struct 681typedef struct
… …
567 736
568 static int ev_default_loop_ptr; 737 static int ev_default_loop_ptr;
569 738
570#endif 739#endif
571 740
741#if EV_FEATURE_API
742# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
743# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
744# define EV_INVOKE_PENDING invoke_cb (EV_A)
745#else
746# define EV_RELEASE_CB (void)0
747# define EV_ACQUIRE_CB (void)0
748# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
749#endif
750
751#define EVBREAK_RECURSE 0x80
752
572/*****************************************************************************/ 753/*****************************************************************************/
573 754
574#ifndef EV_HAVE_EV_TIME 755#ifndef EV_HAVE_EV_TIME
575ev_tstamp 756ev_tstamp
576ev_time (void) 757ev_time (void)
… …
619 if (delay > 0.) 800 if (delay > 0.)
620 { 801 {
621#if EV_USE_NANOSLEEP 802#if EV_USE_NANOSLEEP
622 struct timespec ts; 803 struct timespec ts;
623 804
624 ts.tv_sec = (time_t)delay; 805 EV_TS_SET (ts, delay);
625 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
626
627 nanosleep (&ts, 0); 806 nanosleep (&ts, 0);
628#elif defined(_WIN32) 807#elif defined(_WIN32)
629 Sleep ((unsigned long)(delay * 1e3)); 808 Sleep ((unsigned long)(delay * 1e3));
630#else 809#else
631 struct timeval tv; 810 struct timeval tv;
632 811
633 tv.tv_sec = (time_t)delay;
634 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
635
636 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 812 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
637 /* somehting not guaranteed by newer posix versions, but guaranteed */ 813 /* something not guaranteed by newer posix versions, but guaranteed */
638 /* by older ones */ 814 /* by older ones */
815 EV_TV_SET (tv, delay);
639 select (0, 0, 0, 0, &tv); 816 select (0, 0, 0, 0, &tv);
640#endif 817#endif
641 } 818 }
642} 819}
643 820
821inline_speed int
822ev_timeout_to_ms (ev_tstamp timeout)
823{
824 int ms = timeout * 1000. + .999999;
825
826 return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
827}
828
644/*****************************************************************************/ 829/*****************************************************************************/
645 830
646#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 831#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
647 832
648/* find a suitable new size for the given array, */ 833/* find a suitable new size for the given array, */
649/* hopefully by rounding to a ncie-to-malloc size */ 834/* hopefully by rounding to a nice-to-malloc size */
650inline_size int 835inline_size int
651array_nextsize (int elem, int cur, int cnt) 836array_nextsize (int elem, int cur, int cnt)
652{ 837{
653 int ncur = cur + 1; 838 int ncur = cur + 1;
654 839
… …
750} 935}
751 936
752/*****************************************************************************/ 937/*****************************************************************************/
753 938
754inline_speed void 939inline_speed void
755fd_event (EV_P_ int fd, int revents) 940fd_event_nocheck (EV_P_ int fd, int revents)
756{ 941{
757 ANFD *anfd = anfds + fd; 942 ANFD *anfd = anfds + fd;
758 ev_io *w; 943 ev_io *w;
759 944
760 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 945 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
764 if (ev) 949 if (ev)
765 ev_feed_event (EV_A_ (W)w, ev); 950 ev_feed_event (EV_A_ (W)w, ev);
766 } 951 }
767} 952}
768 953
954/* do not submit kernel events for fds that have reify set */
955/* because that means they changed while we were polling for new events */
956inline_speed void
957fd_event (EV_P_ int fd, int revents)
958{
959 ANFD *anfd = anfds + fd;
960
961 if (expect_true (!anfd->reify))
962 fd_event_nocheck (EV_A_ fd, revents);
963}
964
769void 965void
770ev_feed_fd_event (EV_P_ int fd, int revents) 966ev_feed_fd_event (EV_P_ int fd, int revents)
771{ 967{
772 if (fd >= 0 && fd < anfdmax) 968 if (fd >= 0 && fd < anfdmax)
773 fd_event (EV_A_ fd, revents); 969 fd_event_nocheck (EV_A_ fd, revents);
774} 970}
775 971
776/* make sure the external fd watch events are in-sync */ 972/* make sure the external fd watch events are in-sync */
777/* with the kernel/libev internal state */ 973/* with the kernel/libev internal state */
778inline_size void 974inline_size void
779fd_reify (EV_P) 975fd_reify (EV_P)
780{ 976{
781 int i; 977 int i;
782 978
979#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
980 for (i = 0; i < fdchangecnt; ++i)
981 {
982 int fd = fdchanges [i];
983 ANFD *anfd = anfds + fd;
984
985 if (anfd->reify & EV__IOFDSET)
986 {
987 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
988
989 if (handle != anfd->handle)
990 {
991 unsigned long arg;
992
993 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
994
995 /* handle changed, but fd didn't - we need to do it in two steps */
996 backend_modify (EV_A_ fd, anfd->events, 0);
997 anfd->events = 0;
998 anfd->handle = handle;
999 }
1000 }
1001 }
1002#endif
1003
783 for (i = 0; i < fdchangecnt; ++i) 1004 for (i = 0; i < fdchangecnt; ++i)
784 { 1005 {
785 int fd = fdchanges [i]; 1006 int fd = fdchanges [i];
786 ANFD *anfd = anfds + fd; 1007 ANFD *anfd = anfds + fd;
787 ev_io *w; 1008 ev_io *w;
788 1009
789 unsigned char events = 0; 1010 unsigned char o_events = anfd->events;
1011 unsigned char o_reify = anfd->reify;
790 1012
791 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1013 anfd->reify = 0;
792 events |= (unsigned char)w->events;
793 1014
794#if EV_SELECT_IS_WINSOCKET 1015 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
795 if (events)
796 { 1016 {
797 unsigned long arg; 1017 anfd->events = 0;
798 #ifdef EV_FD_TO_WIN32_HANDLE 1018
799 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1019 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
800 #else 1020 anfd->events |= (unsigned char)w->events;
801 anfd->handle = _get_osfhandle (fd); 1021
802 #endif 1022 if (o_events != anfd->events)
803 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1023 o_reify = EV__IOFDSET; /* actually |= */
804 } 1024 }
805#endif
806 1025
807 { 1026 if (o_reify & EV__IOFDSET)
808 unsigned char o_events = anfd->events;
809 unsigned char o_reify = anfd->reify;
810
811 anfd->reify = 0;
812 anfd->events = events;
813
814 if (o_events != events || o_reify & EV__IOFDSET)
815 backend_modify (EV_A_ fd, o_events, events); 1027 backend_modify (EV_A_ fd, o_events, anfd->events);
816 }
817 } 1028 }
818 1029
819 fdchangecnt = 0; 1030 fdchangecnt = 0;
820} 1031}
821 1032
… …
845 ev_io_stop (EV_A_ w); 1056 ev_io_stop (EV_A_ w);
846 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1057 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
847 } 1058 }
848} 1059}
849 1060
850/* check whether the given fd is atcually valid, for error recovery */ 1061/* check whether the given fd is actually valid, for error recovery */
851inline_size int 1062inline_size int
852fd_valid (int fd) 1063fd_valid (int fd)
853{ 1064{
854#ifdef _WIN32 1065#ifdef _WIN32
855 return _get_osfhandle (fd) != -1; 1066 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
856#else 1067#else
857 return fcntl (fd, F_GETFD) != -1; 1068 return fcntl (fd, F_GETFD) != -1;
858#endif 1069#endif
859} 1070}
860 1071
… …
878 1089
879 for (fd = anfdmax; fd--; ) 1090 for (fd = anfdmax; fd--; )
880 if (anfds [fd].events) 1091 if (anfds [fd].events)
881 { 1092 {
882 fd_kill (EV_A_ fd); 1093 fd_kill (EV_A_ fd);
883 return; 1094 break;
884 } 1095 }
885} 1096}
886 1097
887/* usually called after fork if backend needs to re-arm all fds from scratch */ 1098/* usually called after fork if backend needs to re-arm all fds from scratch */
888static void noinline 1099static void noinline
… …
893 for (fd = 0; fd < anfdmax; ++fd) 1104 for (fd = 0; fd < anfdmax; ++fd)
894 if (anfds [fd].events) 1105 if (anfds [fd].events)
895 { 1106 {
896 anfds [fd].events = 0; 1107 anfds [fd].events = 0;
897 anfds [fd].emask = 0; 1108 anfds [fd].emask = 0;
898 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1109 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
899 } 1110 }
900} 1111}
901 1112
1113/* used to prepare libev internal fd's */
1114/* this is not fork-safe */
1115inline_speed void
1116fd_intern (int fd)
1117{
1118#ifdef _WIN32
1119 unsigned long arg = 1;
1120 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1121#else
1122 fcntl (fd, F_SETFD, FD_CLOEXEC);
1123 fcntl (fd, F_SETFL, O_NONBLOCK);
1124#endif
1125}
1126
902/*****************************************************************************/ 1127/*****************************************************************************/
903 1128
904/* 1129/*
905 * the heap functions want a real array index. array index 0 uis guaranteed to not 1130 * the heap functions want a real array index. array index 0 is guaranteed to not
906 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1131 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
907 * the branching factor of the d-tree. 1132 * the branching factor of the d-tree.
908 */ 1133 */
909 1134
910/* 1135/*
… …
978 1203
979 for (;;) 1204 for (;;)
980 { 1205 {
981 int c = k << 1; 1206 int c = k << 1;
982 1207
983 if (c > N + HEAP0 - 1) 1208 if (c >= N + HEAP0)
984 break; 1209 break;
985 1210
986 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1211 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
987 ? 1 : 0; 1212 ? 1 : 0;
988 1213
… …
1024 1249
1025/* move an element suitably so it is in a correct place */ 1250/* move an element suitably so it is in a correct place */
1026inline_size void 1251inline_size void
1027adjustheap (ANHE *heap, int N, int k) 1252adjustheap (ANHE *heap, int N, int k)
1028{ 1253{
1029 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1254 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1030 upheap (heap, k); 1255 upheap (heap, k);
1031 else 1256 else
1032 downheap (heap, N, k); 1257 downheap (heap, N, k);
1033} 1258}
1034 1259
… …
1047/*****************************************************************************/ 1272/*****************************************************************************/
1048 1273
1049/* associate signal watchers to a signal signal */ 1274/* associate signal watchers to a signal signal */
1050typedef struct 1275typedef struct
1051{ 1276{
1277 EV_ATOMIC_T pending;
1278#if EV_MULTIPLICITY
1279 EV_P;
1280#endif
1052 WL head; 1281 WL head;
1053 EV_ATOMIC_T gotsig;
1054} ANSIG; 1282} ANSIG;
1055 1283
1056static ANSIG *signals; 1284static ANSIG signals [EV_NSIG - 1];
1057static int signalmax;
1058
1059static EV_ATOMIC_T gotsig;
1060 1285
1061/*****************************************************************************/ 1286/*****************************************************************************/
1062 1287
1063/* used to prepare libev internal fd's */ 1288#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1064/* this is not fork-safe */
1065inline_speed void
1066fd_intern (int fd)
1067{
1068#ifdef _WIN32
1069 unsigned long arg = 1;
1070 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1071#else
1072 fcntl (fd, F_SETFD, FD_CLOEXEC);
1073 fcntl (fd, F_SETFL, O_NONBLOCK);
1074#endif
1075}
1076 1289
1077static void noinline 1290static void noinline
1078evpipe_init (EV_P) 1291evpipe_init (EV_P)
1079{ 1292{
1080 if (!ev_is_active (&pipe_w)) 1293 if (!ev_is_active (&pipe_w))
1081 { 1294 {
1082#if EV_USE_EVENTFD 1295# if EV_USE_EVENTFD
1296 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1297 if (evfd < 0 && errno == EINVAL)
1083 if ((evfd = eventfd (0, 0)) >= 0) 1298 evfd = eventfd (0, 0);
1299
1300 if (evfd >= 0)
1084 { 1301 {
1085 evpipe [0] = -1; 1302 evpipe [0] = -1;
1086 fd_intern (evfd); 1303 fd_intern (evfd); /* doing it twice doesn't hurt */
1087 ev_io_set (&pipe_w, evfd, EV_READ); 1304 ev_io_set (&pipe_w, evfd, EV_READ);
1088 } 1305 }
1089 else 1306 else
1090#endif 1307# endif
1091 { 1308 {
1092 while (pipe (evpipe)) 1309 while (pipe (evpipe))
1093 ev_syserr ("(libev) error creating signal/async pipe"); 1310 ev_syserr ("(libev) error creating signal/async pipe");
1094 1311
1095 fd_intern (evpipe [0]); 1312 fd_intern (evpipe [0]);
… …
1106evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1323evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1107{ 1324{
1108 if (!*flag) 1325 if (!*flag)
1109 { 1326 {
1110 int old_errno = errno; /* save errno because write might clobber it */ 1327 int old_errno = errno; /* save errno because write might clobber it */
1328 char dummy;
1111 1329
1112 *flag = 1; 1330 *flag = 1;
1113 1331
1114#if EV_USE_EVENTFD 1332#if EV_USE_EVENTFD
1115 if (evfd >= 0) 1333 if (evfd >= 0)
… …
1117 uint64_t counter = 1; 1335 uint64_t counter = 1;
1118 write (evfd, &counter, sizeof (uint64_t)); 1336 write (evfd, &counter, sizeof (uint64_t));
1119 } 1337 }
1120 else 1338 else
1121#endif 1339#endif
1340 /* win32 people keep sending patches that change this write() to send() */
1341 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1342 /* so when you think this write should be a send instead, please find out */
1343 /* where your send() is from - it's definitely not the microsoft send, and */
1344 /* tell me. thank you. */
1122 write (evpipe [1], &old_errno, 1); 1345 write (evpipe [1], &dummy, 1);
1123 1346
1124 errno = old_errno; 1347 errno = old_errno;
1125 } 1348 }
1126} 1349}
1127 1350
1128/* called whenever the libev signal pipe */ 1351/* called whenever the libev signal pipe */
1129/* got some events (signal, async) */ 1352/* got some events (signal, async) */
1130static void 1353static void
1131pipecb (EV_P_ ev_io *iow, int revents) 1354pipecb (EV_P_ ev_io *iow, int revents)
1132{ 1355{
1356 int i;
1357
1133#if EV_USE_EVENTFD 1358#if EV_USE_EVENTFD
1134 if (evfd >= 0) 1359 if (evfd >= 0)
1135 { 1360 {
1136 uint64_t counter; 1361 uint64_t counter;
1137 read (evfd, &counter, sizeof (uint64_t)); 1362 read (evfd, &counter, sizeof (uint64_t));
1138 } 1363 }
1139 else 1364 else
1140#endif 1365#endif
1141 { 1366 {
1142 char dummy; 1367 char dummy;
1368 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1143 read (evpipe [0], &dummy, 1); 1369 read (evpipe [0], &dummy, 1);
1144 } 1370 }
1145 1371
1146 if (gotsig && ev_is_default_loop (EV_A)) 1372#if EV_SIGNAL_ENABLE
1373 if (sig_pending)
1147 { 1374 {
1148 int signum; 1375 sig_pending = 0;
1149 gotsig = 0;
1150 1376
1151 for (signum = signalmax; signum--; ) 1377 for (i = EV_NSIG - 1; i--; )
1152 if (signals [signum].gotsig) 1378 if (expect_false (signals [i].pending))
1153 ev_feed_signal_event (EV_A_ signum + 1); 1379 ev_feed_signal_event (EV_A_ i + 1);
1154 } 1380 }
1381#endif
1155 1382
1156#if EV_ASYNC_ENABLE 1383#if EV_ASYNC_ENABLE
1157 if (gotasync) 1384 if (async_pending)
1158 { 1385 {
1159 int i; 1386 async_pending = 0;
1160 gotasync = 0;
1161 1387
1162 for (i = asynccnt; i--; ) 1388 for (i = asynccnt; i--; )
1163 if (asyncs [i]->sent) 1389 if (asyncs [i]->sent)
1164 { 1390 {
1165 asyncs [i]->sent = 0; 1391 asyncs [i]->sent = 0;
… …
1169#endif 1395#endif
1170} 1396}
1171 1397
1172/*****************************************************************************/ 1398/*****************************************************************************/
1173 1399
1400void
1401ev_feed_signal (int signum)
1402{
1403#if EV_MULTIPLICITY
1404 EV_P = signals [signum - 1].loop;
1405
1406 if (!EV_A)
1407 return;
1408#endif
1409
1410 signals [signum - 1].pending = 1;
1411 evpipe_write (EV_A_ &sig_pending);
1412}
1413
1174static void 1414static void
1175ev_sighandler (int signum) 1415ev_sighandler (int signum)
1176{ 1416{
1177#if EV_MULTIPLICITY
1178 struct ev_loop *loop = &default_loop_struct;
1179#endif
1180
1181#if _WIN32 1417#ifdef _WIN32
1182 signal (signum, ev_sighandler); 1418 signal (signum, ev_sighandler);
1183#endif 1419#endif
1184 1420
1185 signals [signum - 1].gotsig = 1; 1421 ev_feed_signal (signum);
1186 evpipe_write (EV_A_ &gotsig);
1187} 1422}
1188 1423
1189void noinline 1424void noinline
1190ev_feed_signal_event (EV_P_ int signum) 1425ev_feed_signal_event (EV_P_ int signum)
1191{ 1426{
1192 WL w; 1427 WL w;
1193 1428
1429 if (expect_false (signum <= 0 || signum > EV_NSIG))
1430 return;
1431
1432 --signum;
1433
1194#if EV_MULTIPLICITY 1434#if EV_MULTIPLICITY
1195 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1435 /* it is permissible to try to feed a signal to the wrong loop */
1196#endif 1436 /* or, likely more useful, feeding a signal nobody is waiting for */
1197 1437
1198 --signum; 1438 if (expect_false (signals [signum].loop != EV_A))
1199
1200 if (signum < 0 || signum >= signalmax)
1201 return; 1439 return;
1440#endif
1202 1441
1203 signals [signum].gotsig = 0; 1442 signals [signum].pending = 0;
1204 1443
1205 for (w = signals [signum].head; w; w = w->next) 1444 for (w = signals [signum].head; w; w = w->next)
1206 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1445 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1207} 1446}
1208 1447
1448#if EV_USE_SIGNALFD
1449static void
1450sigfdcb (EV_P_ ev_io *iow, int revents)
1451{
1452 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1453
1454 for (;;)
1455 {
1456 ssize_t res = read (sigfd, si, sizeof (si));
1457
1458 /* not ISO-C, as res might be -1, but works with SuS */
1459 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1460 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1461
1462 if (res < (ssize_t)sizeof (si))
1463 break;
1464 }
1465}
1466#endif
1467
1468#endif
1469
1209/*****************************************************************************/ 1470/*****************************************************************************/
1210 1471
1472#if EV_CHILD_ENABLE
1211static WL childs [EV_PID_HASHSIZE]; 1473static WL childs [EV_PID_HASHSIZE];
1212
1213#ifndef _WIN32
1214 1474
1215static ev_signal childev; 1475static ev_signal childev;
1216 1476
1217#ifndef WIFCONTINUED 1477#ifndef WIFCONTINUED
1218# define WIFCONTINUED(status) 0 1478# define WIFCONTINUED(status) 0
… …
1223child_reap (EV_P_ int chain, int pid, int status) 1483child_reap (EV_P_ int chain, int pid, int status)
1224{ 1484{
1225 ev_child *w; 1485 ev_child *w;
1226 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1486 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1227 1487
1228 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1488 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1229 { 1489 {
1230 if ((w->pid == pid || !w->pid) 1490 if ((w->pid == pid || !w->pid)
1231 && (!traced || (w->flags & 1))) 1491 && (!traced || (w->flags & 1)))
1232 { 1492 {
1233 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1493 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1258 /* make sure we are called again until all children have been reaped */ 1518 /* make sure we are called again until all children have been reaped */
1259 /* we need to do it this way so that the callback gets called before we continue */ 1519 /* we need to do it this way so that the callback gets called before we continue */
1260 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1520 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1261 1521
1262 child_reap (EV_A_ pid, pid, status); 1522 child_reap (EV_A_ pid, pid, status);
1263 if (EV_PID_HASHSIZE > 1) 1523 if ((EV_PID_HASHSIZE) > 1)
1264 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1524 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1265} 1525}
1266 1526
1267#endif 1527#endif
1268 1528
1269/*****************************************************************************/ 1529/*****************************************************************************/
1270 1530
1531#if EV_USE_IOCP
1532# include "ev_iocp.c"
1533#endif
1271#if EV_USE_PORT 1534#if EV_USE_PORT
1272# include "ev_port.c" 1535# include "ev_port.c"
1273#endif 1536#endif
1274#if EV_USE_KQUEUE 1537#if EV_USE_KQUEUE
1275# include "ev_kqueue.c" 1538# include "ev_kqueue.c"
… …
1335#ifdef __APPLE__ 1598#ifdef __APPLE__
1336 /* only select works correctly on that "unix-certified" platform */ 1599 /* only select works correctly on that "unix-certified" platform */
1337 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1600 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1338 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1601 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1339#endif 1602#endif
1603#ifdef __FreeBSD__
1604 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1605#endif
1340 1606
1341 return flags; 1607 return flags;
1342} 1608}
1343 1609
1344unsigned int 1610unsigned int
1345ev_embeddable_backends (void) 1611ev_embeddable_backends (void)
1346{ 1612{
1347 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1613 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1348 1614
1349 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1615 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1350 /* please fix it and tell me how to detect the fix */ 1616 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1351 flags &= ~EVBACKEND_EPOLL; 1617 flags &= ~EVBACKEND_EPOLL;
1352 1618
1353 return flags; 1619 return flags;
1354} 1620}
1355 1621
1356unsigned int 1622unsigned int
1357ev_backend (EV_P) 1623ev_backend (EV_P)
1358{ 1624{
1359 return backend; 1625 return backend;
1360} 1626}
1361 1627
1628#if EV_FEATURE_API
1362unsigned int 1629unsigned int
1363ev_loop_count (EV_P) 1630ev_iteration (EV_P)
1364{ 1631{
1365 return loop_count; 1632 return loop_count;
1366} 1633}
1367 1634
1368unsigned int 1635unsigned int
1369ev_loop_depth (EV_P) 1636ev_depth (EV_P)
1370{ 1637{
1371 return loop_depth; 1638 return loop_depth;
1372} 1639}
1373 1640
1374void 1641void
… …
1380void 1647void
1381ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1648ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1382{ 1649{
1383 timeout_blocktime = interval; 1650 timeout_blocktime = interval;
1384} 1651}
1652
1653void
1654ev_set_userdata (EV_P_ void *data)
1655{
1656 userdata = data;
1657}
1658
1659void *
1660ev_userdata (EV_P)
1661{
1662 return userdata;
1663}
1664
1665void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1666{
1667 invoke_cb = invoke_pending_cb;
1668}
1669
1670void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1671{
1672 release_cb = release;
1673 acquire_cb = acquire;
1674}
1675#endif
1385 1676
1386/* initialise a loop structure, must be zero-initialised */ 1677/* initialise a loop structure, must be zero-initialised */
1387static void noinline 1678static void noinline
1388loop_init (EV_P_ unsigned int flags) 1679loop_init (EV_P_ unsigned int flags)
1389{ 1680{
1390 if (!backend) 1681 if (!backend)
1391 { 1682 {
1683 origflags = flags;
1684
1392#if EV_USE_REALTIME 1685#if EV_USE_REALTIME
1393 if (!have_realtime) 1686 if (!have_realtime)
1394 { 1687 {
1395 struct timespec ts; 1688 struct timespec ts;
1396 1689
… …
1407 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1700 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1408 have_monotonic = 1; 1701 have_monotonic = 1;
1409 } 1702 }
1410#endif 1703#endif
1411 1704
1705 /* pid check not overridable via env */
1706#ifndef _WIN32
1707 if (flags & EVFLAG_FORKCHECK)
1708 curpid = getpid ();
1709#endif
1710
1711 if (!(flags & EVFLAG_NOENV)
1712 && !enable_secure ()
1713 && getenv ("LIBEV_FLAGS"))
1714 flags = atoi (getenv ("LIBEV_FLAGS"));
1715
1412 ev_rt_now = ev_time (); 1716 ev_rt_now = ev_time ();
1413 mn_now = get_clock (); 1717 mn_now = get_clock ();
1414 now_floor = mn_now; 1718 now_floor = mn_now;
1415 rtmn_diff = ev_rt_now - mn_now; 1719 rtmn_diff = ev_rt_now - mn_now;
1720#if EV_FEATURE_API
1721 invoke_cb = ev_invoke_pending;
1722#endif
1416 1723
1417 io_blocktime = 0.; 1724 io_blocktime = 0.;
1418 timeout_blocktime = 0.; 1725 timeout_blocktime = 0.;
1419 backend = 0; 1726 backend = 0;
1420 backend_fd = -1; 1727 backend_fd = -1;
1421 gotasync = 0; 1728 sig_pending = 0;
1729#if EV_ASYNC_ENABLE
1730 async_pending = 0;
1731#endif
1422#if EV_USE_INOTIFY 1732#if EV_USE_INOTIFY
1423 fs_fd = -2; 1733 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1424#endif 1734#endif
1425 1735#if EV_USE_SIGNALFD
1426 /* pid check not overridable via env */ 1736 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1427#ifndef _WIN32
1428 if (flags & EVFLAG_FORKCHECK)
1429 curpid = getpid ();
1430#endif 1737#endif
1431 1738
1432 if (!(flags & EVFLAG_NOENV) 1739 if (!(flags & EVBACKEND_MASK))
1433 && !enable_secure ()
1434 && getenv ("LIBEV_FLAGS"))
1435 flags = atoi (getenv ("LIBEV_FLAGS"));
1436
1437 if (!(flags & 0x0000ffffU))
1438 flags |= ev_recommended_backends (); 1740 flags |= ev_recommended_backends ();
1439 1741
1742#if EV_USE_IOCP
1743 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1744#endif
1440#if EV_USE_PORT 1745#if EV_USE_PORT
1441 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1746 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1442#endif 1747#endif
1443#if EV_USE_KQUEUE 1748#if EV_USE_KQUEUE
1444 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1749 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1453 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1758 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1454#endif 1759#endif
1455 1760
1456 ev_prepare_init (&pending_w, pendingcb); 1761 ev_prepare_init (&pending_w, pendingcb);
1457 1762
1763#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1458 ev_init (&pipe_w, pipecb); 1764 ev_init (&pipe_w, pipecb);
1459 ev_set_priority (&pipe_w, EV_MAXPRI); 1765 ev_set_priority (&pipe_w, EV_MAXPRI);
1766#endif
1460 } 1767 }
1461} 1768}
1462 1769
1463/* free up a loop structure */ 1770/* free up a loop structure */
1464static void noinline 1771void
1465loop_destroy (EV_P) 1772ev_loop_destroy (EV_P)
1466{ 1773{
1467 int i; 1774 int i;
1468 1775
1776#if EV_MULTIPLICITY
1777 /* mimic free (0) */
1778 if (!EV_A)
1779 return;
1780#endif
1781
1782#if EV_CLEANUP_ENABLE
1783 /* queue cleanup watchers (and execute them) */
1784 if (expect_false (cleanupcnt))
1785 {
1786 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1787 EV_INVOKE_PENDING;
1788 }
1789#endif
1790
1791#if EV_CHILD_ENABLE
1792 if (ev_is_active (&childev))
1793 {
1794 ev_ref (EV_A); /* child watcher */
1795 ev_signal_stop (EV_A_ &childev);
1796 }
1797#endif
1798
1469 if (ev_is_active (&pipe_w)) 1799 if (ev_is_active (&pipe_w))
1470 { 1800 {
1471 ev_ref (EV_A); /* signal watcher */ 1801 /*ev_ref (EV_A);*/
1472 ev_io_stop (EV_A_ &pipe_w); 1802 /*ev_io_stop (EV_A_ &pipe_w);*/
1473 1803
1474#if EV_USE_EVENTFD 1804#if EV_USE_EVENTFD
1475 if (evfd >= 0) 1805 if (evfd >= 0)
1476 close (evfd); 1806 close (evfd);
1477#endif 1807#endif
1478 1808
1479 if (evpipe [0] >= 0) 1809 if (evpipe [0] >= 0)
1480 { 1810 {
1481 close (evpipe [0]); 1811 EV_WIN32_CLOSE_FD (evpipe [0]);
1482 close (evpipe [1]); 1812 EV_WIN32_CLOSE_FD (evpipe [1]);
1483 } 1813 }
1484 } 1814 }
1815
1816#if EV_USE_SIGNALFD
1817 if (ev_is_active (&sigfd_w))
1818 close (sigfd);
1819#endif
1485 1820
1486#if EV_USE_INOTIFY 1821#if EV_USE_INOTIFY
1487 if (fs_fd >= 0) 1822 if (fs_fd >= 0)
1488 close (fs_fd); 1823 close (fs_fd);
1489#endif 1824#endif
1490 1825
1491 if (backend_fd >= 0) 1826 if (backend_fd >= 0)
1492 close (backend_fd); 1827 close (backend_fd);
1493 1828
1829#if EV_USE_IOCP
1830 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1831#endif
1494#if EV_USE_PORT 1832#if EV_USE_PORT
1495 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1833 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1496#endif 1834#endif
1497#if EV_USE_KQUEUE 1835#if EV_USE_KQUEUE
1498 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1836 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1513#if EV_IDLE_ENABLE 1851#if EV_IDLE_ENABLE
1514 array_free (idle, [i]); 1852 array_free (idle, [i]);
1515#endif 1853#endif
1516 } 1854 }
1517 1855
1518 ev_free (anfds); anfdmax = 0; 1856 ev_free (anfds); anfds = 0; anfdmax = 0;
1519 1857
1520 /* have to use the microsoft-never-gets-it-right macro */ 1858 /* have to use the microsoft-never-gets-it-right macro */
1521 array_free (rfeed, EMPTY); 1859 array_free (rfeed, EMPTY);
1522 array_free (fdchange, EMPTY); 1860 array_free (fdchange, EMPTY);
1523 array_free (timer, EMPTY); 1861 array_free (timer, EMPTY);
… …
1525 array_free (periodic, EMPTY); 1863 array_free (periodic, EMPTY);
1526#endif 1864#endif
1527#if EV_FORK_ENABLE 1865#if EV_FORK_ENABLE
1528 array_free (fork, EMPTY); 1866 array_free (fork, EMPTY);
1529#endif 1867#endif
1868#if EV_CLEANUP_ENABLE
1869 array_free (cleanup, EMPTY);
1870#endif
1530 array_free (prepare, EMPTY); 1871 array_free (prepare, EMPTY);
1531 array_free (check, EMPTY); 1872 array_free (check, EMPTY);
1532#if EV_ASYNC_ENABLE 1873#if EV_ASYNC_ENABLE
1533 array_free (async, EMPTY); 1874 array_free (async, EMPTY);
1534#endif 1875#endif
1535 1876
1536 backend = 0; 1877 backend = 0;
1878
1879#if EV_MULTIPLICITY
1880 if (ev_is_default_loop (EV_A))
1881#endif
1882 ev_default_loop_ptr = 0;
1883#if EV_MULTIPLICITY
1884 else
1885 ev_free (EV_A);
1886#endif
1537} 1887}
1538 1888
1539#if EV_USE_INOTIFY 1889#if EV_USE_INOTIFY
1540inline_size void infy_fork (EV_P); 1890inline_size void infy_fork (EV_P);
1541#endif 1891#endif
… …
1558 1908
1559 if (ev_is_active (&pipe_w)) 1909 if (ev_is_active (&pipe_w))
1560 { 1910 {
1561 /* this "locks" the handlers against writing to the pipe */ 1911 /* this "locks" the handlers against writing to the pipe */
1562 /* while we modify the fd vars */ 1912 /* while we modify the fd vars */
1563 gotsig = 1; 1913 sig_pending = 1;
1564#if EV_ASYNC_ENABLE 1914#if EV_ASYNC_ENABLE
1565 gotasync = 1; 1915 async_pending = 1;
1566#endif 1916#endif
1567 1917
1568 ev_ref (EV_A); 1918 ev_ref (EV_A);
1569 ev_io_stop (EV_A_ &pipe_w); 1919 ev_io_stop (EV_A_ &pipe_w);
1570 1920
… …
1573 close (evfd); 1923 close (evfd);
1574#endif 1924#endif
1575 1925
1576 if (evpipe [0] >= 0) 1926 if (evpipe [0] >= 0)
1577 { 1927 {
1578 close (evpipe [0]); 1928 EV_WIN32_CLOSE_FD (evpipe [0]);
1579 close (evpipe [1]); 1929 EV_WIN32_CLOSE_FD (evpipe [1]);
1580 } 1930 }
1581 1931
1932#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1582 evpipe_init (EV_A); 1933 evpipe_init (EV_A);
1583 /* now iterate over everything, in case we missed something */ 1934 /* now iterate over everything, in case we missed something */
1584 pipecb (EV_A_ &pipe_w, EV_READ); 1935 pipecb (EV_A_ &pipe_w, EV_READ);
1936#endif
1585 } 1937 }
1586 1938
1587 postfork = 0; 1939 postfork = 0;
1588} 1940}
1589 1941
1590#if EV_MULTIPLICITY 1942#if EV_MULTIPLICITY
1591 1943
1592struct ev_loop * 1944struct ev_loop *
1593ev_loop_new (unsigned int flags) 1945ev_loop_new (unsigned int flags)
1594{ 1946{
1595 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1947 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1596 1948
1597 memset (loop, 0, sizeof (struct ev_loop)); 1949 memset (EV_A, 0, sizeof (struct ev_loop));
1598
1599 loop_init (EV_A_ flags); 1950 loop_init (EV_A_ flags);
1600 1951
1601 if (ev_backend (EV_A)) 1952 if (ev_backend (EV_A))
1602 return loop; 1953 return EV_A;
1603 1954
1955 ev_free (EV_A);
1604 return 0; 1956 return 0;
1605} 1957}
1606 1958
1607void 1959#endif /* multiplicity */
1608ev_loop_destroy (EV_P)
1609{
1610 loop_destroy (EV_A);
1611 ev_free (loop);
1612}
1613
1614void
1615ev_loop_fork (EV_P)
1616{
1617 postfork = 1; /* must be in line with ev_default_fork */
1618}
1619 1960
1620#if EV_VERIFY 1961#if EV_VERIFY
1621static void noinline 1962static void noinline
1622verify_watcher (EV_P_ W w) 1963verify_watcher (EV_P_ W w)
1623{ 1964{
… …
1651 verify_watcher (EV_A_ ws [cnt]); 1992 verify_watcher (EV_A_ ws [cnt]);
1652 } 1993 }
1653} 1994}
1654#endif 1995#endif
1655 1996
1997#if EV_FEATURE_API
1656void 1998void
1657ev_loop_verify (EV_P) 1999ev_verify (EV_P)
1658{ 2000{
1659#if EV_VERIFY 2001#if EV_VERIFY
1660 int i; 2002 int i;
1661 WL w; 2003 WL w;
1662 2004
… …
1696#if EV_FORK_ENABLE 2038#if EV_FORK_ENABLE
1697 assert (forkmax >= forkcnt); 2039 assert (forkmax >= forkcnt);
1698 array_verify (EV_A_ (W *)forks, forkcnt); 2040 array_verify (EV_A_ (W *)forks, forkcnt);
1699#endif 2041#endif
1700 2042
2043#if EV_CLEANUP_ENABLE
2044 assert (cleanupmax >= cleanupcnt);
2045 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2046#endif
2047
1701#if EV_ASYNC_ENABLE 2048#if EV_ASYNC_ENABLE
1702 assert (asyncmax >= asynccnt); 2049 assert (asyncmax >= asynccnt);
1703 array_verify (EV_A_ (W *)asyncs, asynccnt); 2050 array_verify (EV_A_ (W *)asyncs, asynccnt);
1704#endif 2051#endif
1705 2052
2053#if EV_PREPARE_ENABLE
1706 assert (preparemax >= preparecnt); 2054 assert (preparemax >= preparecnt);
1707 array_verify (EV_A_ (W *)prepares, preparecnt); 2055 array_verify (EV_A_ (W *)prepares, preparecnt);
2056#endif
1708 2057
2058#if EV_CHECK_ENABLE
1709 assert (checkmax >= checkcnt); 2059 assert (checkmax >= checkcnt);
1710 array_verify (EV_A_ (W *)checks, checkcnt); 2060 array_verify (EV_A_ (W *)checks, checkcnt);
2061#endif
1711 2062
1712# if 0 2063# if 0
2064#if EV_CHILD_ENABLE
1713 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2065 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1714 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2066 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2067#endif
1715# endif 2068# endif
1716#endif 2069#endif
1717} 2070}
1718 2071#endif
1719#endif /* multiplicity */
1720 2072
1721#if EV_MULTIPLICITY 2073#if EV_MULTIPLICITY
1722struct ev_loop * 2074struct ev_loop *
1723ev_default_loop_init (unsigned int flags)
1724#else 2075#else
1725int 2076int
2077#endif
1726ev_default_loop (unsigned int flags) 2078ev_default_loop (unsigned int flags)
1727#endif
1728{ 2079{
1729 if (!ev_default_loop_ptr) 2080 if (!ev_default_loop_ptr)
1730 { 2081 {
1731#if EV_MULTIPLICITY 2082#if EV_MULTIPLICITY
1732 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2083 EV_P = ev_default_loop_ptr = &default_loop_struct;
1733#else 2084#else
1734 ev_default_loop_ptr = 1; 2085 ev_default_loop_ptr = 1;
1735#endif 2086#endif
1736 2087
1737 loop_init (EV_A_ flags); 2088 loop_init (EV_A_ flags);
1738 2089
1739 if (ev_backend (EV_A)) 2090 if (ev_backend (EV_A))
1740 { 2091 {
1741#ifndef _WIN32 2092#if EV_CHILD_ENABLE
1742 ev_signal_init (&childev, childcb, SIGCHLD); 2093 ev_signal_init (&childev, childcb, SIGCHLD);
1743 ev_set_priority (&childev, EV_MAXPRI); 2094 ev_set_priority (&childev, EV_MAXPRI);
1744 ev_signal_start (EV_A_ &childev); 2095 ev_signal_start (EV_A_ &childev);
1745 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2096 ev_unref (EV_A); /* child watcher should not keep loop alive */
1746#endif 2097#endif
… …
1751 2102
1752 return ev_default_loop_ptr; 2103 return ev_default_loop_ptr;
1753} 2104}
1754 2105
1755void 2106void
1756ev_default_destroy (void) 2107ev_loop_fork (EV_P)
1757{ 2108{
1758#if EV_MULTIPLICITY
1759 struct ev_loop *loop = ev_default_loop_ptr;
1760#endif
1761
1762 ev_default_loop_ptr = 0;
1763
1764#ifndef _WIN32
1765 ev_ref (EV_A); /* child watcher */
1766 ev_signal_stop (EV_A_ &childev);
1767#endif
1768
1769 loop_destroy (EV_A);
1770}
1771
1772void
1773ev_default_fork (void)
1774{
1775#if EV_MULTIPLICITY
1776 struct ev_loop *loop = ev_default_loop_ptr;
1777#endif
1778
1779 postfork = 1; /* must be in line with ev_loop_fork */ 2109 postfork = 1; /* must be in line with ev_default_fork */
1780} 2110}
1781 2111
1782/*****************************************************************************/ 2112/*****************************************************************************/
1783 2113
1784void 2114void
1785ev_invoke (EV_P_ void *w, int revents) 2115ev_invoke (EV_P_ void *w, int revents)
1786{ 2116{
1787 EV_CB_INVOKE ((W)w, revents); 2117 EV_CB_INVOKE ((W)w, revents);
1788} 2118}
1789 2119
1790inline_speed void 2120unsigned int
1791call_pending (EV_P) 2121ev_pending_count (EV_P)
2122{
2123 int pri;
2124 unsigned int count = 0;
2125
2126 for (pri = NUMPRI; pri--; )
2127 count += pendingcnt [pri];
2128
2129 return count;
2130}
2131
2132void noinline
2133ev_invoke_pending (EV_P)
1792{ 2134{
1793 int pri; 2135 int pri;
1794 2136
1795 for (pri = NUMPRI; pri--; ) 2137 for (pri = NUMPRI; pri--; )
1796 while (pendingcnt [pri]) 2138 while (pendingcnt [pri])
1797 { 2139 {
1798 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2140 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1799
1800 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1801 /* ^ this is no longer true, as pending_w could be here */
1802 2141
1803 p->w->pending = 0; 2142 p->w->pending = 0;
1804 EV_CB_INVOKE (p->w, p->events); 2143 EV_CB_INVOKE (p->w, p->events);
1805 EV_FREQUENT_CHECK; 2144 EV_FREQUENT_CHECK;
1806 } 2145 }
… …
1863 EV_FREQUENT_CHECK; 2202 EV_FREQUENT_CHECK;
1864 feed_reverse (EV_A_ (W)w); 2203 feed_reverse (EV_A_ (W)w);
1865 } 2204 }
1866 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2205 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1867 2206
1868 feed_reverse_done (EV_A_ EV_TIMEOUT); 2207 feed_reverse_done (EV_A_ EV_TIMER);
1869 } 2208 }
1870} 2209}
1871 2210
1872#if EV_PERIODIC_ENABLE 2211#if EV_PERIODIC_ENABLE
2212
2213inline_speed void
2214periodic_recalc (EV_P_ ev_periodic *w)
2215{
2216 /* TODO: use slow but potentially more correct incremental algo, */
2217 /* also do not rely on ceil */
2218 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2219}
2220
1873/* make periodics pending */ 2221/* make periodics pending */
1874inline_size void 2222inline_size void
1875periodics_reify (EV_P) 2223periodics_reify (EV_P)
1876{ 2224{
1877 EV_FREQUENT_CHECK; 2225 EV_FREQUENT_CHECK;
… …
1896 ANHE_at_cache (periodics [HEAP0]); 2244 ANHE_at_cache (periodics [HEAP0]);
1897 downheap (periodics, periodiccnt, HEAP0); 2245 downheap (periodics, periodiccnt, HEAP0);
1898 } 2246 }
1899 else if (w->interval) 2247 else if (w->interval)
1900 { 2248 {
1901 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2249 periodic_recalc (EV_A_ w);
2250
1902 /* if next trigger time is not sufficiently in the future, put it there */ 2251 /* if next trigger time is not sufficiently in the future, put it there */
1903 /* this might happen because of floating point inexactness */ 2252 /* this might happen because of floating point inexactness */
1904 if (ev_at (w) - ev_rt_now < TIME_EPSILON) 2253 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1905 { 2254 {
1906 ev_at (w) += w->interval; 2255 ev_at (w) += w->interval;
… …
1926 feed_reverse_done (EV_A_ EV_PERIODIC); 2275 feed_reverse_done (EV_A_ EV_PERIODIC);
1927 } 2276 }
1928} 2277}
1929 2278
1930/* simply recalculate all periodics */ 2279/* simply recalculate all periodics */
1931/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2280/* TODO: maybe ensure that at least one event happens when jumping forward? */
1932static void noinline 2281static void noinline
1933periodics_reschedule (EV_P) 2282periodics_reschedule (EV_P)
1934{ 2283{
1935 int i; 2284 int i;
1936 2285
… …
1940 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2289 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1941 2290
1942 if (w->reschedule_cb) 2291 if (w->reschedule_cb)
1943 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2292 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1944 else if (w->interval) 2293 else if (w->interval)
1945 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2294 periodic_recalc (EV_A_ w);
1946 2295
1947 ANHE_at_cache (periodics [i]); 2296 ANHE_at_cache (periodics [i]);
1948 } 2297 }
1949 2298
1950 reheap (periodics, periodiccnt); 2299 reheap (periodics, periodiccnt);
… …
1964 ANHE_at_cache (*he); 2313 ANHE_at_cache (*he);
1965 } 2314 }
1966} 2315}
1967 2316
1968/* fetch new monotonic and realtime times from the kernel */ 2317/* fetch new monotonic and realtime times from the kernel */
1969/* also detetc if there was a timejump, and act accordingly */ 2318/* also detect if there was a timejump, and act accordingly */
1970inline_speed void 2319inline_speed void
1971time_update (EV_P_ ev_tstamp max_block) 2320time_update (EV_P_ ev_tstamp max_block)
1972{ 2321{
1973#if EV_USE_MONOTONIC 2322#if EV_USE_MONOTONIC
1974 if (expect_true (have_monotonic)) 2323 if (expect_true (have_monotonic))
… …
2032 mn_now = ev_rt_now; 2381 mn_now = ev_rt_now;
2033 } 2382 }
2034} 2383}
2035 2384
2036void 2385void
2037ev_loop (EV_P_ int flags) 2386ev_run (EV_P_ int flags)
2038{ 2387{
2388#if EV_FEATURE_API
2039 ++loop_depth; 2389 ++loop_depth;
2390#endif
2040 2391
2392 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2393
2041 loop_done = EVUNLOOP_CANCEL; 2394 loop_done = EVBREAK_CANCEL;
2042 2395
2043 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2396 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2044 2397
2045 do 2398 do
2046 { 2399 {
2047#if EV_VERIFY >= 2 2400#if EV_VERIFY >= 2
2048 ev_loop_verify (EV_A); 2401 ev_verify (EV_A);
2049#endif 2402#endif
2050 2403
2051#ifndef _WIN32 2404#ifndef _WIN32
2052 if (expect_false (curpid)) /* penalise the forking check even more */ 2405 if (expect_false (curpid)) /* penalise the forking check even more */
2053 if (expect_false (getpid () != curpid)) 2406 if (expect_false (getpid () != curpid))
… …
2061 /* we might have forked, so queue fork handlers */ 2414 /* we might have forked, so queue fork handlers */
2062 if (expect_false (postfork)) 2415 if (expect_false (postfork))
2063 if (forkcnt) 2416 if (forkcnt)
2064 { 2417 {
2065 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2418 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2066 call_pending (EV_A); 2419 EV_INVOKE_PENDING;
2067 } 2420 }
2068#endif 2421#endif
2069 2422
2423#if EV_PREPARE_ENABLE
2070 /* queue prepare watchers (and execute them) */ 2424 /* queue prepare watchers (and execute them) */
2071 if (expect_false (preparecnt)) 2425 if (expect_false (preparecnt))
2072 { 2426 {
2073 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2427 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2074 call_pending (EV_A); 2428 EV_INVOKE_PENDING;
2075 } 2429 }
2430#endif
2431
2432 if (expect_false (loop_done))
2433 break;
2076 2434
2077 /* we might have forked, so reify kernel state if necessary */ 2435 /* we might have forked, so reify kernel state if necessary */
2078 if (expect_false (postfork)) 2436 if (expect_false (postfork))
2079 loop_fork (EV_A); 2437 loop_fork (EV_A);
2080 2438
… …
2084 /* calculate blocking time */ 2442 /* calculate blocking time */
2085 { 2443 {
2086 ev_tstamp waittime = 0.; 2444 ev_tstamp waittime = 0.;
2087 ev_tstamp sleeptime = 0.; 2445 ev_tstamp sleeptime = 0.;
2088 2446
2447 /* remember old timestamp for io_blocktime calculation */
2448 ev_tstamp prev_mn_now = mn_now;
2449
2450 /* update time to cancel out callback processing overhead */
2451 time_update (EV_A_ 1e100);
2452
2089 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2453 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2090 { 2454 {
2091 /* remember old timestamp for io_blocktime calculation */
2092 ev_tstamp prev_mn_now = mn_now;
2093
2094 /* update time to cancel out callback processing overhead */
2095 time_update (EV_A_ 1e100);
2096
2097 waittime = MAX_BLOCKTIME; 2455 waittime = MAX_BLOCKTIME;
2098 2456
2099 if (timercnt) 2457 if (timercnt)
2100 { 2458 {
2101 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2459 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
2128 waittime -= sleeptime; 2486 waittime -= sleeptime;
2129 } 2487 }
2130 } 2488 }
2131 } 2489 }
2132 2490
2491#if EV_FEATURE_API
2133 ++loop_count; 2492 ++loop_count;
2493#endif
2494 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2134 backend_poll (EV_A_ waittime); 2495 backend_poll (EV_A_ waittime);
2496 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2135 2497
2136 /* update ev_rt_now, do magic */ 2498 /* update ev_rt_now, do magic */
2137 time_update (EV_A_ waittime + sleeptime); 2499 time_update (EV_A_ waittime + sleeptime);
2138 } 2500 }
2139 2501
… …
2146#if EV_IDLE_ENABLE 2508#if EV_IDLE_ENABLE
2147 /* queue idle watchers unless other events are pending */ 2509 /* queue idle watchers unless other events are pending */
2148 idle_reify (EV_A); 2510 idle_reify (EV_A);
2149#endif 2511#endif
2150 2512
2513#if EV_CHECK_ENABLE
2151 /* queue check watchers, to be executed first */ 2514 /* queue check watchers, to be executed first */
2152 if (expect_false (checkcnt)) 2515 if (expect_false (checkcnt))
2153 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2516 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2517#endif
2154 2518
2155 call_pending (EV_A); 2519 EV_INVOKE_PENDING;
2156 } 2520 }
2157 while (expect_true ( 2521 while (expect_true (
2158 activecnt 2522 activecnt
2159 && !loop_done 2523 && !loop_done
2160 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2524 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2161 )); 2525 ));
2162 2526
2163 if (loop_done == EVUNLOOP_ONE) 2527 if (loop_done == EVBREAK_ONE)
2164 loop_done = EVUNLOOP_CANCEL; 2528 loop_done = EVBREAK_CANCEL;
2165 2529
2530#if EV_FEATURE_API
2166 --loop_depth; 2531 --loop_depth;
2532#endif
2167} 2533}
2168 2534
2169void 2535void
2170ev_unloop (EV_P_ int how) 2536ev_break (EV_P_ int how)
2171{ 2537{
2172 loop_done = how; 2538 loop_done = how;
2173} 2539}
2174 2540
2175void 2541void
… …
2222inline_size void 2588inline_size void
2223wlist_del (WL *head, WL elem) 2589wlist_del (WL *head, WL elem)
2224{ 2590{
2225 while (*head) 2591 while (*head)
2226 { 2592 {
2227 if (*head == elem) 2593 if (expect_true (*head == elem))
2228 { 2594 {
2229 *head = elem->next; 2595 *head = elem->next;
2230 return; 2596 break;
2231 } 2597 }
2232 2598
2233 head = &(*head)->next; 2599 head = &(*head)->next;
2234 } 2600 }
2235} 2601}
… …
2295 2661
2296 if (expect_false (ev_is_active (w))) 2662 if (expect_false (ev_is_active (w)))
2297 return; 2663 return;
2298 2664
2299 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2665 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2300 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2666 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2301 2667
2302 EV_FREQUENT_CHECK; 2668 EV_FREQUENT_CHECK;
2303 2669
2304 ev_start (EV_A_ (W)w, 1); 2670 ev_start (EV_A_ (W)w, 1);
2305 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2671 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2306 wlist_add (&anfds[fd].head, (WL)w); 2672 wlist_add (&anfds[fd].head, (WL)w);
2307 2673
2308 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 2674 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2309 w->events &= ~EV__IOFDSET; 2675 w->events &= ~EV__IOFDSET;
2310 2676
2311 EV_FREQUENT_CHECK; 2677 EV_FREQUENT_CHECK;
2312} 2678}
2313 2679
… …
2323 EV_FREQUENT_CHECK; 2689 EV_FREQUENT_CHECK;
2324 2690
2325 wlist_del (&anfds[w->fd].head, (WL)w); 2691 wlist_del (&anfds[w->fd].head, (WL)w);
2326 ev_stop (EV_A_ (W)w); 2692 ev_stop (EV_A_ (W)w);
2327 2693
2328 fd_change (EV_A_ w->fd, 1); 2694 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2329 2695
2330 EV_FREQUENT_CHECK; 2696 EV_FREQUENT_CHECK;
2331} 2697}
2332 2698
2333void noinline 2699void noinline
… …
2375 timers [active] = timers [timercnt + HEAP0]; 2741 timers [active] = timers [timercnt + HEAP0];
2376 adjustheap (timers, timercnt, active); 2742 adjustheap (timers, timercnt, active);
2377 } 2743 }
2378 } 2744 }
2379 2745
2380 EV_FREQUENT_CHECK;
2381
2382 ev_at (w) -= mn_now; 2746 ev_at (w) -= mn_now;
2383 2747
2384 ev_stop (EV_A_ (W)w); 2748 ev_stop (EV_A_ (W)w);
2749
2750 EV_FREQUENT_CHECK;
2385} 2751}
2386 2752
2387void noinline 2753void noinline
2388ev_timer_again (EV_P_ ev_timer *w) 2754ev_timer_again (EV_P_ ev_timer *w)
2389{ 2755{
… …
2407 } 2773 }
2408 2774
2409 EV_FREQUENT_CHECK; 2775 EV_FREQUENT_CHECK;
2410} 2776}
2411 2777
2778ev_tstamp
2779ev_timer_remaining (EV_P_ ev_timer *w)
2780{
2781 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2782}
2783
2412#if EV_PERIODIC_ENABLE 2784#if EV_PERIODIC_ENABLE
2413void noinline 2785void noinline
2414ev_periodic_start (EV_P_ ev_periodic *w) 2786ev_periodic_start (EV_P_ ev_periodic *w)
2415{ 2787{
2416 if (expect_false (ev_is_active (w))) 2788 if (expect_false (ev_is_active (w)))
… …
2419 if (w->reschedule_cb) 2791 if (w->reschedule_cb)
2420 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2792 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2421 else if (w->interval) 2793 else if (w->interval)
2422 { 2794 {
2423 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2795 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2424 /* this formula differs from the one in periodic_reify because we do not always round up */ 2796 periodic_recalc (EV_A_ w);
2425 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2426 } 2797 }
2427 else 2798 else
2428 ev_at (w) = w->offset; 2799 ev_at (w) = w->offset;
2429 2800
2430 EV_FREQUENT_CHECK; 2801 EV_FREQUENT_CHECK;
… …
2462 periodics [active] = periodics [periodiccnt + HEAP0]; 2833 periodics [active] = periodics [periodiccnt + HEAP0];
2463 adjustheap (periodics, periodiccnt, active); 2834 adjustheap (periodics, periodiccnt, active);
2464 } 2835 }
2465 } 2836 }
2466 2837
2467 EV_FREQUENT_CHECK;
2468
2469 ev_stop (EV_A_ (W)w); 2838 ev_stop (EV_A_ (W)w);
2839
2840 EV_FREQUENT_CHECK;
2470} 2841}
2471 2842
2472void noinline 2843void noinline
2473ev_periodic_again (EV_P_ ev_periodic *w) 2844ev_periodic_again (EV_P_ ev_periodic *w)
2474{ 2845{
… …
2480 2851
2481#ifndef SA_RESTART 2852#ifndef SA_RESTART
2482# define SA_RESTART 0 2853# define SA_RESTART 0
2483#endif 2854#endif
2484 2855
2856#if EV_SIGNAL_ENABLE
2857
2485void noinline 2858void noinline
2486ev_signal_start (EV_P_ ev_signal *w) 2859ev_signal_start (EV_P_ ev_signal *w)
2487{ 2860{
2488#if EV_MULTIPLICITY
2489 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2490#endif
2491 if (expect_false (ev_is_active (w))) 2861 if (expect_false (ev_is_active (w)))
2492 return; 2862 return;
2493 2863
2494 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 2864 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2495 2865
2496 evpipe_init (EV_A); 2866#if EV_MULTIPLICITY
2867 assert (("libev: a signal must not be attached to two different loops",
2868 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2497 2869
2498 EV_FREQUENT_CHECK; 2870 signals [w->signum - 1].loop = EV_A;
2871#endif
2499 2872
2873 EV_FREQUENT_CHECK;
2874
2875#if EV_USE_SIGNALFD
2876 if (sigfd == -2)
2500 { 2877 {
2501#ifndef _WIN32 2878 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2502 sigset_t full, prev; 2879 if (sigfd < 0 && errno == EINVAL)
2503 sigfillset (&full); 2880 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2504 sigprocmask (SIG_SETMASK, &full, &prev);
2505#endif
2506 2881
2507 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 2882 if (sigfd >= 0)
2883 {
2884 fd_intern (sigfd); /* doing it twice will not hurt */
2508 2885
2509#ifndef _WIN32 2886 sigemptyset (&sigfd_set);
2510 sigprocmask (SIG_SETMASK, &prev, 0); 2887
2511#endif 2888 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2889 ev_set_priority (&sigfd_w, EV_MAXPRI);
2890 ev_io_start (EV_A_ &sigfd_w);
2891 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2892 }
2512 } 2893 }
2894
2895 if (sigfd >= 0)
2896 {
2897 /* TODO: check .head */
2898 sigaddset (&sigfd_set, w->signum);
2899 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2900
2901 signalfd (sigfd, &sigfd_set, 0);
2902 }
2903#endif
2513 2904
2514 ev_start (EV_A_ (W)w, 1); 2905 ev_start (EV_A_ (W)w, 1);
2515 wlist_add (&signals [w->signum - 1].head, (WL)w); 2906 wlist_add (&signals [w->signum - 1].head, (WL)w);
2516 2907
2517 if (!((WL)w)->next) 2908 if (!((WL)w)->next)
2909# if EV_USE_SIGNALFD
2910 if (sigfd < 0) /*TODO*/
2911# endif
2518 { 2912 {
2519#if _WIN32 2913# ifdef _WIN32
2914 evpipe_init (EV_A);
2915
2520 signal (w->signum, ev_sighandler); 2916 signal (w->signum, ev_sighandler);
2521#else 2917# else
2522 struct sigaction sa; 2918 struct sigaction sa;
2919
2920 evpipe_init (EV_A);
2921
2523 sa.sa_handler = ev_sighandler; 2922 sa.sa_handler = ev_sighandler;
2524 sigfillset (&sa.sa_mask); 2923 sigfillset (&sa.sa_mask);
2525 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2924 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2526 sigaction (w->signum, &sa, 0); 2925 sigaction (w->signum, &sa, 0);
2926
2927 if (origflags & EVFLAG_NOSIGMASK)
2928 {
2929 sigemptyset (&sa.sa_mask);
2930 sigaddset (&sa.sa_mask, w->signum);
2931 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2932 }
2527#endif 2933#endif
2528 } 2934 }
2529 2935
2530 EV_FREQUENT_CHECK; 2936 EV_FREQUENT_CHECK;
2531} 2937}
2532 2938
2533void noinline 2939void noinline
… …
2541 2947
2542 wlist_del (&signals [w->signum - 1].head, (WL)w); 2948 wlist_del (&signals [w->signum - 1].head, (WL)w);
2543 ev_stop (EV_A_ (W)w); 2949 ev_stop (EV_A_ (W)w);
2544 2950
2545 if (!signals [w->signum - 1].head) 2951 if (!signals [w->signum - 1].head)
2952 {
2953#if EV_MULTIPLICITY
2954 signals [w->signum - 1].loop = 0; /* unattach from signal */
2955#endif
2956#if EV_USE_SIGNALFD
2957 if (sigfd >= 0)
2958 {
2959 sigset_t ss;
2960
2961 sigemptyset (&ss);
2962 sigaddset (&ss, w->signum);
2963 sigdelset (&sigfd_set, w->signum);
2964
2965 signalfd (sigfd, &sigfd_set, 0);
2966 sigprocmask (SIG_UNBLOCK, &ss, 0);
2967 }
2968 else
2969#endif
2546 signal (w->signum, SIG_DFL); 2970 signal (w->signum, SIG_DFL);
2971 }
2547 2972
2548 EV_FREQUENT_CHECK; 2973 EV_FREQUENT_CHECK;
2549} 2974}
2975
2976#endif
2977
2978#if EV_CHILD_ENABLE
2550 2979
2551void 2980void
2552ev_child_start (EV_P_ ev_child *w) 2981ev_child_start (EV_P_ ev_child *w)
2553{ 2982{
2554#if EV_MULTIPLICITY 2983#if EV_MULTIPLICITY
… …
2558 return; 2987 return;
2559 2988
2560 EV_FREQUENT_CHECK; 2989 EV_FREQUENT_CHECK;
2561 2990
2562 ev_start (EV_A_ (W)w, 1); 2991 ev_start (EV_A_ (W)w, 1);
2563 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2992 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2564 2993
2565 EV_FREQUENT_CHECK; 2994 EV_FREQUENT_CHECK;
2566} 2995}
2567 2996
2568void 2997void
… …
2572 if (expect_false (!ev_is_active (w))) 3001 if (expect_false (!ev_is_active (w)))
2573 return; 3002 return;
2574 3003
2575 EV_FREQUENT_CHECK; 3004 EV_FREQUENT_CHECK;
2576 3005
2577 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3006 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2578 ev_stop (EV_A_ (W)w); 3007 ev_stop (EV_A_ (W)w);
2579 3008
2580 EV_FREQUENT_CHECK; 3009 EV_FREQUENT_CHECK;
2581} 3010}
3011
3012#endif
2582 3013
2583#if EV_STAT_ENABLE 3014#if EV_STAT_ENABLE
2584 3015
2585# ifdef _WIN32 3016# ifdef _WIN32
2586# undef lstat 3017# undef lstat
… …
2592#define MIN_STAT_INTERVAL 0.1074891 3023#define MIN_STAT_INTERVAL 0.1074891
2593 3024
2594static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3025static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2595 3026
2596#if EV_USE_INOTIFY 3027#if EV_USE_INOTIFY
2597# define EV_INOTIFY_BUFSIZE 8192 3028
3029/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3030# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2598 3031
2599static void noinline 3032static void noinline
2600infy_add (EV_P_ ev_stat *w) 3033infy_add (EV_P_ ev_stat *w)
2601{ 3034{
2602 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3035 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2603 3036
2604 if (w->wd < 0) 3037 if (w->wd >= 0)
3038 {
3039 struct statfs sfs;
3040
3041 /* now local changes will be tracked by inotify, but remote changes won't */
3042 /* unless the filesystem is known to be local, we therefore still poll */
3043 /* also do poll on <2.6.25, but with normal frequency */
3044
3045 if (!fs_2625)
3046 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3047 else if (!statfs (w->path, &sfs)
3048 && (sfs.f_type == 0x1373 /* devfs */
3049 || sfs.f_type == 0xEF53 /* ext2/3 */
3050 || sfs.f_type == 0x3153464a /* jfs */
3051 || sfs.f_type == 0x52654973 /* reiser3 */
3052 || sfs.f_type == 0x01021994 /* tempfs */
3053 || sfs.f_type == 0x58465342 /* xfs */))
3054 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3055 else
3056 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2605 { 3057 }
3058 else
3059 {
3060 /* can't use inotify, continue to stat */
2606 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3061 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2607 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2608 3062
2609 /* monitor some parent directory for speedup hints */ 3063 /* if path is not there, monitor some parent directory for speedup hints */
2610 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3064 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2611 /* but an efficiency issue only */ 3065 /* but an efficiency issue only */
2612 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3066 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2613 { 3067 {
2614 char path [4096]; 3068 char path [4096];
… …
2630 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3084 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2631 } 3085 }
2632 } 3086 }
2633 3087
2634 if (w->wd >= 0) 3088 if (w->wd >= 0)
2635 {
2636 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3089 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2637 3090
2638 /* now local changes will be tracked by inotify, but remote changes won't */ 3091 /* now re-arm timer, if required */
2639 /* unless the filesystem it known to be local, we therefore still poll */ 3092 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2640 /* also do poll on <2.6.25, but with normal frequency */
2641 struct statfs sfs;
2642
2643 if (fs_2625 && !statfs (w->path, &sfs))
2644 if (sfs.f_type == 0x1373 /* devfs */
2645 || sfs.f_type == 0xEF53 /* ext2/3 */
2646 || sfs.f_type == 0x3153464a /* jfs */
2647 || sfs.f_type == 0x52654973 /* reiser3 */
2648 || sfs.f_type == 0x01021994 /* tempfs */
2649 || sfs.f_type == 0x58465342 /* xfs */)
2650 return;
2651
2652 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2653 ev_timer_again (EV_A_ &w->timer); 3093 ev_timer_again (EV_A_ &w->timer);
2654 } 3094 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2655} 3095}
2656 3096
2657static void noinline 3097static void noinline
2658infy_del (EV_P_ ev_stat *w) 3098infy_del (EV_P_ ev_stat *w)
2659{ 3099{
… …
2662 3102
2663 if (wd < 0) 3103 if (wd < 0)
2664 return; 3104 return;
2665 3105
2666 w->wd = -2; 3106 w->wd = -2;
2667 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3107 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2668 wlist_del (&fs_hash [slot].head, (WL)w); 3108 wlist_del (&fs_hash [slot].head, (WL)w);
2669 3109
2670 /* remove this watcher, if others are watching it, they will rearm */ 3110 /* remove this watcher, if others are watching it, they will rearm */
2671 inotify_rm_watch (fs_fd, wd); 3111 inotify_rm_watch (fs_fd, wd);
2672} 3112}
… …
2674static void noinline 3114static void noinline
2675infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3115infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2676{ 3116{
2677 if (slot < 0) 3117 if (slot < 0)
2678 /* overflow, need to check for all hash slots */ 3118 /* overflow, need to check for all hash slots */
2679 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3119 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2680 infy_wd (EV_A_ slot, wd, ev); 3120 infy_wd (EV_A_ slot, wd, ev);
2681 else 3121 else
2682 { 3122 {
2683 WL w_; 3123 WL w_;
2684 3124
2685 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3125 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2686 { 3126 {
2687 ev_stat *w = (ev_stat *)w_; 3127 ev_stat *w = (ev_stat *)w_;
2688 w_ = w_->next; /* lets us remove this watcher and all before it */ 3128 w_ = w_->next; /* lets us remove this watcher and all before it */
2689 3129
2690 if (w->wd == wd || wd == -1) 3130 if (w->wd == wd || wd == -1)
2691 { 3131 {
2692 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3132 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2693 { 3133 {
2694 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3134 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2695 w->wd = -1; 3135 w->wd = -1;
2696 infy_add (EV_A_ w); /* re-add, no matter what */ 3136 infy_add (EV_A_ w); /* re-add, no matter what */
2697 } 3137 }
2698 3138
2699 stat_timer_cb (EV_A_ &w->timer, 0); 3139 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2704 3144
2705static void 3145static void
2706infy_cb (EV_P_ ev_io *w, int revents) 3146infy_cb (EV_P_ ev_io *w, int revents)
2707{ 3147{
2708 char buf [EV_INOTIFY_BUFSIZE]; 3148 char buf [EV_INOTIFY_BUFSIZE];
2709 struct inotify_event *ev = (struct inotify_event *)buf;
2710 int ofs; 3149 int ofs;
2711 int len = read (fs_fd, buf, sizeof (buf)); 3150 int len = read (fs_fd, buf, sizeof (buf));
2712 3151
2713 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3152 for (ofs = 0; ofs < len; )
3153 {
3154 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2714 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3155 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3156 ofs += sizeof (struct inotify_event) + ev->len;
3157 }
2715} 3158}
2716 3159
2717inline_size void 3160inline_size void
2718check_2625 (EV_P) 3161ev_check_2625 (EV_P)
2719{ 3162{
2720 /* kernels < 2.6.25 are borked 3163 /* kernels < 2.6.25 are borked
2721 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3164 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2722 */ 3165 */
2723 struct utsname buf; 3166 if (ev_linux_version () < 0x020619)
2724 int major, minor, micro;
2725
2726 if (uname (&buf))
2727 return; 3167 return;
2728 3168
2729 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2730 return;
2731
2732 if (major < 2
2733 || (major == 2 && minor < 6)
2734 || (major == 2 && minor == 6 && micro < 25))
2735 return;
2736
2737 fs_2625 = 1; 3169 fs_2625 = 1;
3170}
3171
3172inline_size int
3173infy_newfd (void)
3174{
3175#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3176 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3177 if (fd >= 0)
3178 return fd;
3179#endif
3180 return inotify_init ();
2738} 3181}
2739 3182
2740inline_size void 3183inline_size void
2741infy_init (EV_P) 3184infy_init (EV_P)
2742{ 3185{
2743 if (fs_fd != -2) 3186 if (fs_fd != -2)
2744 return; 3187 return;
2745 3188
2746 fs_fd = -1; 3189 fs_fd = -1;
2747 3190
2748 check_2625 (EV_A); 3191 ev_check_2625 (EV_A);
2749 3192
2750 fs_fd = inotify_init (); 3193 fs_fd = infy_newfd ();
2751 3194
2752 if (fs_fd >= 0) 3195 if (fs_fd >= 0)
2753 { 3196 {
3197 fd_intern (fs_fd);
2754 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3198 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2755 ev_set_priority (&fs_w, EV_MAXPRI); 3199 ev_set_priority (&fs_w, EV_MAXPRI);
2756 ev_io_start (EV_A_ &fs_w); 3200 ev_io_start (EV_A_ &fs_w);
3201 ev_unref (EV_A);
2757 } 3202 }
2758} 3203}
2759 3204
2760inline_size void 3205inline_size void
2761infy_fork (EV_P) 3206infy_fork (EV_P)
… …
2763 int slot; 3208 int slot;
2764 3209
2765 if (fs_fd < 0) 3210 if (fs_fd < 0)
2766 return; 3211 return;
2767 3212
3213 ev_ref (EV_A);
3214 ev_io_stop (EV_A_ &fs_w);
2768 close (fs_fd); 3215 close (fs_fd);
2769 fs_fd = inotify_init (); 3216 fs_fd = infy_newfd ();
2770 3217
3218 if (fs_fd >= 0)
3219 {
3220 fd_intern (fs_fd);
3221 ev_io_set (&fs_w, fs_fd, EV_READ);
3222 ev_io_start (EV_A_ &fs_w);
3223 ev_unref (EV_A);
3224 }
3225
2771 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3226 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2772 { 3227 {
2773 WL w_ = fs_hash [slot].head; 3228 WL w_ = fs_hash [slot].head;
2774 fs_hash [slot].head = 0; 3229 fs_hash [slot].head = 0;
2775 3230
2776 while (w_) 3231 while (w_)
… …
2781 w->wd = -1; 3236 w->wd = -1;
2782 3237
2783 if (fs_fd >= 0) 3238 if (fs_fd >= 0)
2784 infy_add (EV_A_ w); /* re-add, no matter what */ 3239 infy_add (EV_A_ w); /* re-add, no matter what */
2785 else 3240 else
3241 {
3242 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3243 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2786 ev_timer_again (EV_A_ &w->timer); 3244 ev_timer_again (EV_A_ &w->timer);
3245 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3246 }
2787 } 3247 }
2788 } 3248 }
2789} 3249}
2790 3250
2791#endif 3251#endif
… …
2808static void noinline 3268static void noinline
2809stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3269stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2810{ 3270{
2811 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3271 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2812 3272
2813 /* we copy this here each the time so that */ 3273 ev_statdata prev = w->attr;
2814 /* prev has the old value when the callback gets invoked */
2815 w->prev = w->attr;
2816 ev_stat_stat (EV_A_ w); 3274 ev_stat_stat (EV_A_ w);
2817 3275
2818 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3276 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2819 if ( 3277 if (
2820 w->prev.st_dev != w->attr.st_dev 3278 prev.st_dev != w->attr.st_dev
2821 || w->prev.st_ino != w->attr.st_ino 3279 || prev.st_ino != w->attr.st_ino
2822 || w->prev.st_mode != w->attr.st_mode 3280 || prev.st_mode != w->attr.st_mode
2823 || w->prev.st_nlink != w->attr.st_nlink 3281 || prev.st_nlink != w->attr.st_nlink
2824 || w->prev.st_uid != w->attr.st_uid 3282 || prev.st_uid != w->attr.st_uid
2825 || w->prev.st_gid != w->attr.st_gid 3283 || prev.st_gid != w->attr.st_gid
2826 || w->prev.st_rdev != w->attr.st_rdev 3284 || prev.st_rdev != w->attr.st_rdev
2827 || w->prev.st_size != w->attr.st_size 3285 || prev.st_size != w->attr.st_size
2828 || w->prev.st_atime != w->attr.st_atime 3286 || prev.st_atime != w->attr.st_atime
2829 || w->prev.st_mtime != w->attr.st_mtime 3287 || prev.st_mtime != w->attr.st_mtime
2830 || w->prev.st_ctime != w->attr.st_ctime 3288 || prev.st_ctime != w->attr.st_ctime
2831 ) { 3289 ) {
3290 /* we only update w->prev on actual differences */
3291 /* in case we test more often than invoke the callback, */
3292 /* to ensure that prev is always different to attr */
3293 w->prev = prev;
3294
2832 #if EV_USE_INOTIFY 3295 #if EV_USE_INOTIFY
2833 if (fs_fd >= 0) 3296 if (fs_fd >= 0)
2834 { 3297 {
2835 infy_del (EV_A_ w); 3298 infy_del (EV_A_ w);
2836 infy_add (EV_A_ w); 3299 infy_add (EV_A_ w);
… …
2861 3324
2862 if (fs_fd >= 0) 3325 if (fs_fd >= 0)
2863 infy_add (EV_A_ w); 3326 infy_add (EV_A_ w);
2864 else 3327 else
2865#endif 3328#endif
3329 {
2866 ev_timer_again (EV_A_ &w->timer); 3330 ev_timer_again (EV_A_ &w->timer);
3331 ev_unref (EV_A);
3332 }
2867 3333
2868 ev_start (EV_A_ (W)w, 1); 3334 ev_start (EV_A_ (W)w, 1);
2869 3335
2870 EV_FREQUENT_CHECK; 3336 EV_FREQUENT_CHECK;
2871} 3337}
… …
2880 EV_FREQUENT_CHECK; 3346 EV_FREQUENT_CHECK;
2881 3347
2882#if EV_USE_INOTIFY 3348#if EV_USE_INOTIFY
2883 infy_del (EV_A_ w); 3349 infy_del (EV_A_ w);
2884#endif 3350#endif
3351
3352 if (ev_is_active (&w->timer))
3353 {
3354 ev_ref (EV_A);
2885 ev_timer_stop (EV_A_ &w->timer); 3355 ev_timer_stop (EV_A_ &w->timer);
3356 }
2886 3357
2887 ev_stop (EV_A_ (W)w); 3358 ev_stop (EV_A_ (W)w);
2888 3359
2889 EV_FREQUENT_CHECK; 3360 EV_FREQUENT_CHECK;
2890} 3361}
… …
2935 3406
2936 EV_FREQUENT_CHECK; 3407 EV_FREQUENT_CHECK;
2937} 3408}
2938#endif 3409#endif
2939 3410
3411#if EV_PREPARE_ENABLE
2940void 3412void
2941ev_prepare_start (EV_P_ ev_prepare *w) 3413ev_prepare_start (EV_P_ ev_prepare *w)
2942{ 3414{
2943 if (expect_false (ev_is_active (w))) 3415 if (expect_false (ev_is_active (w)))
2944 return; 3416 return;
… …
2970 3442
2971 ev_stop (EV_A_ (W)w); 3443 ev_stop (EV_A_ (W)w);
2972 3444
2973 EV_FREQUENT_CHECK; 3445 EV_FREQUENT_CHECK;
2974} 3446}
3447#endif
2975 3448
3449#if EV_CHECK_ENABLE
2976void 3450void
2977ev_check_start (EV_P_ ev_check *w) 3451ev_check_start (EV_P_ ev_check *w)
2978{ 3452{
2979 if (expect_false (ev_is_active (w))) 3453 if (expect_false (ev_is_active (w)))
2980 return; 3454 return;
… …
3006 3480
3007 ev_stop (EV_A_ (W)w); 3481 ev_stop (EV_A_ (W)w);
3008 3482
3009 EV_FREQUENT_CHECK; 3483 EV_FREQUENT_CHECK;
3010} 3484}
3485#endif
3011 3486
3012#if EV_EMBED_ENABLE 3487#if EV_EMBED_ENABLE
3013void noinline 3488void noinline
3014ev_embed_sweep (EV_P_ ev_embed *w) 3489ev_embed_sweep (EV_P_ ev_embed *w)
3015{ 3490{
3016 ev_loop (w->other, EVLOOP_NONBLOCK); 3491 ev_run (w->other, EVRUN_NOWAIT);
3017} 3492}
3018 3493
3019static void 3494static void
3020embed_io_cb (EV_P_ ev_io *io, int revents) 3495embed_io_cb (EV_P_ ev_io *io, int revents)
3021{ 3496{
3022 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3497 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3023 3498
3024 if (ev_cb (w)) 3499 if (ev_cb (w))
3025 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3500 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3026 else 3501 else
3027 ev_loop (w->other, EVLOOP_NONBLOCK); 3502 ev_run (w->other, EVRUN_NOWAIT);
3028} 3503}
3029 3504
3030static void 3505static void
3031embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3506embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3032{ 3507{
3033 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3508 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3034 3509
3035 { 3510 {
3036 struct ev_loop *loop = w->other; 3511 EV_P = w->other;
3037 3512
3038 while (fdchangecnt) 3513 while (fdchangecnt)
3039 { 3514 {
3040 fd_reify (EV_A); 3515 fd_reify (EV_A);
3041 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3516 ev_run (EV_A_ EVRUN_NOWAIT);
3042 } 3517 }
3043 } 3518 }
3044} 3519}
3045 3520
3046static void 3521static void
… …
3049 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3524 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3050 3525
3051 ev_embed_stop (EV_A_ w); 3526 ev_embed_stop (EV_A_ w);
3052 3527
3053 { 3528 {
3054 struct ev_loop *loop = w->other; 3529 EV_P = w->other;
3055 3530
3056 ev_loop_fork (EV_A); 3531 ev_loop_fork (EV_A);
3057 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3532 ev_run (EV_A_ EVRUN_NOWAIT);
3058 } 3533 }
3059 3534
3060 ev_embed_start (EV_A_ w); 3535 ev_embed_start (EV_A_ w);
3061} 3536}
3062 3537
… …
3073{ 3548{
3074 if (expect_false (ev_is_active (w))) 3549 if (expect_false (ev_is_active (w)))
3075 return; 3550 return;
3076 3551
3077 { 3552 {
3078 struct ev_loop *loop = w->other; 3553 EV_P = w->other;
3079 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3554 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3080 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3555 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3081 } 3556 }
3082 3557
3083 EV_FREQUENT_CHECK; 3558 EV_FREQUENT_CHECK;
… …
3110 3585
3111 ev_io_stop (EV_A_ &w->io); 3586 ev_io_stop (EV_A_ &w->io);
3112 ev_prepare_stop (EV_A_ &w->prepare); 3587 ev_prepare_stop (EV_A_ &w->prepare);
3113 ev_fork_stop (EV_A_ &w->fork); 3588 ev_fork_stop (EV_A_ &w->fork);
3114 3589
3590 ev_stop (EV_A_ (W)w);
3591
3115 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
3116} 3593}
3117#endif 3594#endif
3118 3595
3119#if EV_FORK_ENABLE 3596#if EV_FORK_ENABLE
… …
3152 3629
3153 EV_FREQUENT_CHECK; 3630 EV_FREQUENT_CHECK;
3154} 3631}
3155#endif 3632#endif
3156 3633
3157#if EV_ASYNC_ENABLE 3634#if EV_CLEANUP_ENABLE
3158void 3635void
3159ev_async_start (EV_P_ ev_async *w) 3636ev_cleanup_start (EV_P_ ev_cleanup *w)
3160{ 3637{
3161 if (expect_false (ev_is_active (w))) 3638 if (expect_false (ev_is_active (w)))
3162 return; 3639 return;
3640
3641 EV_FREQUENT_CHECK;
3642
3643 ev_start (EV_A_ (W)w, ++cleanupcnt);
3644 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3645 cleanups [cleanupcnt - 1] = w;
3646
3647 /* cleanup watchers should never keep a refcount on the loop */
3648 ev_unref (EV_A);
3649 EV_FREQUENT_CHECK;
3650}
3651
3652void
3653ev_cleanup_stop (EV_P_ ev_cleanup *w)
3654{
3655 clear_pending (EV_A_ (W)w);
3656 if (expect_false (!ev_is_active (w)))
3657 return;
3658
3659 EV_FREQUENT_CHECK;
3660 ev_ref (EV_A);
3661
3662 {
3663 int active = ev_active (w);
3664
3665 cleanups [active - 1] = cleanups [--cleanupcnt];
3666 ev_active (cleanups [active - 1]) = active;
3667 }
3668
3669 ev_stop (EV_A_ (W)w);
3670
3671 EV_FREQUENT_CHECK;
3672}
3673#endif
3674
3675#if EV_ASYNC_ENABLE
3676void
3677ev_async_start (EV_P_ ev_async *w)
3678{
3679 if (expect_false (ev_is_active (w)))
3680 return;
3681
3682 w->sent = 0;
3163 3683
3164 evpipe_init (EV_A); 3684 evpipe_init (EV_A);
3165 3685
3166 EV_FREQUENT_CHECK; 3686 EV_FREQUENT_CHECK;
3167 3687
… …
3195 3715
3196void 3716void
3197ev_async_send (EV_P_ ev_async *w) 3717ev_async_send (EV_P_ ev_async *w)
3198{ 3718{
3199 w->sent = 1; 3719 w->sent = 1;
3200 evpipe_write (EV_A_ &gotasync); 3720 evpipe_write (EV_A_ &async_pending);
3201} 3721}
3202#endif 3722#endif
3203 3723
3204/*****************************************************************************/ 3724/*****************************************************************************/
3205 3725
… …
3245{ 3765{
3246 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3766 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3247 3767
3248 if (expect_false (!once)) 3768 if (expect_false (!once))
3249 { 3769 {
3250 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3770 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3251 return; 3771 return;
3252 } 3772 }
3253 3773
3254 once->cb = cb; 3774 once->cb = cb;
3255 once->arg = arg; 3775 once->arg = arg;
… …
3342 if (types & EV_ASYNC) 3862 if (types & EV_ASYNC)
3343 for (i = asynccnt; i--; ) 3863 for (i = asynccnt; i--; )
3344 cb (EV_A_ EV_ASYNC, asyncs [i]); 3864 cb (EV_A_ EV_ASYNC, asyncs [i]);
3345#endif 3865#endif
3346 3866
3867#if EV_PREPARE_ENABLE
3347 if (types & EV_PREPARE) 3868 if (types & EV_PREPARE)
3348 for (i = preparecnt; i--; ) 3869 for (i = preparecnt; i--; )
3349#if EV_EMBED_ENABLE 3870# if EV_EMBED_ENABLE
3350 if (ev_cb (prepares [i]) != embed_prepare_cb) 3871 if (ev_cb (prepares [i]) != embed_prepare_cb)
3351#endif 3872# endif
3352 cb (EV_A_ EV_PREPARE, prepares [i]); 3873 cb (EV_A_ EV_PREPARE, prepares [i]);
3874#endif
3353 3875
3876#if EV_CHECK_ENABLE
3354 if (types & EV_CHECK) 3877 if (types & EV_CHECK)
3355 for (i = checkcnt; i--; ) 3878 for (i = checkcnt; i--; )
3356 cb (EV_A_ EV_CHECK, checks [i]); 3879 cb (EV_A_ EV_CHECK, checks [i]);
3880#endif
3357 3881
3882#if EV_SIGNAL_ENABLE
3358 if (types & EV_SIGNAL) 3883 if (types & EV_SIGNAL)
3359 for (i = 0; i < signalmax; ++i) 3884 for (i = 0; i < EV_NSIG - 1; ++i)
3360 for (wl = signals [i].head; wl; ) 3885 for (wl = signals [i].head; wl; )
3361 { 3886 {
3362 wn = wl->next; 3887 wn = wl->next;
3363 cb (EV_A_ EV_SIGNAL, wl); 3888 cb (EV_A_ EV_SIGNAL, wl);
3364 wl = wn; 3889 wl = wn;
3365 } 3890 }
3891#endif
3366 3892
3893#if EV_CHILD_ENABLE
3367 if (types & EV_CHILD) 3894 if (types & EV_CHILD)
3368 for (i = EV_PID_HASHSIZE; i--; ) 3895 for (i = (EV_PID_HASHSIZE); i--; )
3369 for (wl = childs [i]; wl; ) 3896 for (wl = childs [i]; wl; )
3370 { 3897 {
3371 wn = wl->next; 3898 wn = wl->next;
3372 cb (EV_A_ EV_CHILD, wl); 3899 cb (EV_A_ EV_CHILD, wl);
3373 wl = wn; 3900 wl = wn;
3374 } 3901 }
3902#endif
3375/* EV_STAT 0x00001000 /* stat data changed */ 3903/* EV_STAT 0x00001000 /* stat data changed */
3376/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3904/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3377} 3905}
3378#endif 3906#endif
3379 3907
3380#if EV_MULTIPLICITY 3908#if EV_MULTIPLICITY
3381 #include "ev_wrap.h" 3909 #include "ev_wrap.h"
3382#endif 3910#endif
3383 3911
3384#ifdef __cplusplus 3912EV_CPP(})
3385}
3386#endif
3387 3913

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