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Comparing libev/ev.c (file contents):
Revision 1.292 by root, Mon Jun 29 07:22:56 2009 UTC vs.
Revision 1.368 by root, Mon Jan 17 12:11:11 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
… …
77# ifndef EV_USE_REALTIME 73# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 74# define EV_USE_REALTIME 0
79# endif 75# endif
80# endif 76# endif
81 77
78# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 79# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 80# define EV_USE_NANOSLEEP EV_FEATURE_OS
81# endif
85# else 82# else
83# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 84# define EV_USE_NANOSLEEP 0
85# endif
86
87# if HAVE_SELECT && HAVE_SYS_SELECT_H
88# ifndef EV_USE_SELECT
89# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 90# endif
91# else
92# undef EV_USE_SELECT
93# define EV_USE_SELECT 0
88# endif 94# endif
89 95
96# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 97# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 98# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 99# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 100# else
101# undef EV_USE_POLL
102# define EV_USE_POLL 0 102# define EV_USE_POLL 0
103# endif
104# endif 103# endif
105 104
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 106# ifndef EV_USE_EPOLL
109# else 107# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 108# endif
109# else
110# undef EV_USE_EPOLL
111# define EV_USE_EPOLL 0
112# endif 112# endif
113 113
114# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 115# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 117# endif
118# else
119# undef EV_USE_KQUEUE
120# define EV_USE_KQUEUE 0
120# endif 121# endif
121 122
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 123# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 124# ifndef EV_USE_PORT
125# else 125# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 126# endif
127# else
128# undef EV_USE_PORT
129# define EV_USE_PORT 0
128# endif 130# endif
129 131
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 132# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 133# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 135# endif
136# else
137# undef EV_USE_INOTIFY
138# define EV_USE_INOTIFY 0
136# endif 139# endif
137 140
141# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138# ifndef EV_USE_EVENTFD 142# ifndef EV_USE_SIGNALFD
139# if HAVE_EVENTFD 143# define EV_USE_SIGNALFD EV_FEATURE_OS
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# endif 144# endif
145# else
146# undef EV_USE_SIGNALFD
147# define EV_USE_SIGNALFD 0
148# endif
149
150# if HAVE_EVENTFD
151# ifndef EV_USE_EVENTFD
152# define EV_USE_EVENTFD EV_FEATURE_OS
153# endif
154# else
155# undef EV_USE_EVENTFD
156# define EV_USE_EVENTFD 0
144# endif 157# endif
145 158
146#endif 159#endif
147 160
148#include <math.h> 161#include <math.h>
149#include <stdlib.h> 162#include <stdlib.h>
163#include <string.h>
150#include <fcntl.h> 164#include <fcntl.h>
151#include <stddef.h> 165#include <stddef.h>
152 166
153#include <stdio.h> 167#include <stdio.h>
154 168
155#include <assert.h> 169#include <assert.h>
156#include <errno.h> 170#include <errno.h>
157#include <sys/types.h> 171#include <sys/types.h>
158#include <time.h> 172#include <time.h>
173#include <limits.h>
159 174
160#include <signal.h> 175#include <signal.h>
161 176
162#ifdef EV_H 177#ifdef EV_H
163# include EV_H 178# include EV_H
164#else 179#else
165# include "ev.h" 180# include "ev.h"
166#endif 181#endif
182
183EV_CPP(extern "C" {)
167 184
168#ifndef _WIN32 185#ifndef _WIN32
169# include <sys/time.h> 186# include <sys/time.h>
170# include <sys/wait.h> 187# include <sys/wait.h>
171# include <unistd.h> 188# include <unistd.h>
… …
174# define WIN32_LEAN_AND_MEAN 191# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 192# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 193# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 194# define EV_SELECT_IS_WINSOCKET 1
178# endif 195# endif
196# undef EV_AVOID_STDIO
179#endif 197#endif
198
199/* OS X, in its infinite idiocy, actually HARDCODES
200 * a limit of 1024 into their select. Where people have brains,
201 * OS X engineers apparently have a vacuum. Or maybe they were
202 * ordered to have a vacuum, or they do anything for money.
203 * This might help. Or not.
204 */
205#define _DARWIN_UNLIMITED_SELECT 1
180 206
181/* this block tries to deduce configuration from header-defined symbols and defaults */ 207/* this block tries to deduce configuration from header-defined symbols and defaults */
208
209/* try to deduce the maximum number of signals on this platform */
210#if defined (EV_NSIG)
211/* use what's provided */
212#elif defined (NSIG)
213# define EV_NSIG (NSIG)
214#elif defined(_NSIG)
215# define EV_NSIG (_NSIG)
216#elif defined (SIGMAX)
217# define EV_NSIG (SIGMAX+1)
218#elif defined (SIG_MAX)
219# define EV_NSIG (SIG_MAX+1)
220#elif defined (_SIG_MAX)
221# define EV_NSIG (_SIG_MAX+1)
222#elif defined (MAXSIG)
223# define EV_NSIG (MAXSIG+1)
224#elif defined (MAX_SIG)
225# define EV_NSIG (MAX_SIG+1)
226#elif defined (SIGARRAYSIZE)
227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
228#elif defined (_sys_nsig)
229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
230#else
231# error "unable to find value for NSIG, please report"
232/* to make it compile regardless, just remove the above line, */
233/* but consider reporting it, too! :) */
234# define EV_NSIG 65
235#endif
182 236
183#ifndef EV_USE_CLOCK_SYSCALL 237#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 238# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 240# else
187# define EV_USE_CLOCK_SYSCALL 0 241# define EV_USE_CLOCK_SYSCALL 0
188# endif 242# endif
189#endif 243#endif
190 244
191#ifndef EV_USE_MONOTONIC 245#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 247# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 248# else
195# define EV_USE_MONOTONIC 0 249# define EV_USE_MONOTONIC 0
196# endif 250# endif
197#endif 251#endif
198 252
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 254# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 255#endif
202 256
203#ifndef EV_USE_NANOSLEEP 257#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 258# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 259# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 260# else
207# define EV_USE_NANOSLEEP 0 261# define EV_USE_NANOSLEEP 0
208# endif 262# endif
209#endif 263#endif
210 264
211#ifndef EV_USE_SELECT 265#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 266# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 267#endif
214 268
215#ifndef EV_USE_POLL 269#ifndef EV_USE_POLL
216# ifdef _WIN32 270# ifdef _WIN32
217# define EV_USE_POLL 0 271# define EV_USE_POLL 0
218# else 272# else
219# define EV_USE_POLL 1 273# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 274# endif
221#endif 275#endif
222 276
223#ifndef EV_USE_EPOLL 277#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 279# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 280# else
227# define EV_USE_EPOLL 0 281# define EV_USE_EPOLL 0
228# endif 282# endif
229#endif 283#endif
230 284
… …
236# define EV_USE_PORT 0 290# define EV_USE_PORT 0
237#endif 291#endif
238 292
239#ifndef EV_USE_INOTIFY 293#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 295# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 296# else
243# define EV_USE_INOTIFY 0 297# define EV_USE_INOTIFY 0
244# endif 298# endif
245#endif 299#endif
246 300
247#ifndef EV_PID_HASHSIZE 301#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 302# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249# define EV_PID_HASHSIZE 1
250# else
251# define EV_PID_HASHSIZE 16
252# endif
253#endif 303#endif
254 304
255#ifndef EV_INOTIFY_HASHSIZE 305#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 306# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_INOTIFY_HASHSIZE 1
258# else
259# define EV_INOTIFY_HASHSIZE 16
260# endif
261#endif 307#endif
262 308
263#ifndef EV_USE_EVENTFD 309#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 311# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 312# else
267# define EV_USE_EVENTFD 0 313# define EV_USE_EVENTFD 0
314# endif
315#endif
316
317#ifndef EV_USE_SIGNALFD
318# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
319# define EV_USE_SIGNALFD EV_FEATURE_OS
320# else
321# define EV_USE_SIGNALFD 0
268# endif 322# endif
269#endif 323#endif
270 324
271#if 0 /* debugging */ 325#if 0 /* debugging */
272# define EV_VERIFY 3 326# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 327# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 328# define EV_HEAP_CACHE_AT 1
275#endif 329#endif
276 330
277#ifndef EV_VERIFY 331#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 332# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 333#endif
280 334
281#ifndef EV_USE_4HEAP 335#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 336# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 337#endif
284 338
285#ifndef EV_HEAP_CACHE_AT 339#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif 341#endif
288 342
289/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 343/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290/* which makes programs even slower. might work on other unices, too. */ 344/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 345#if EV_USE_CLOCK_SYSCALL
… …
300# endif 354# endif
301#endif 355#endif
302 356
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 357/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304 358
359#ifdef _AIX
360/* AIX has a completely broken poll.h header */
361# undef EV_USE_POLL
362# define EV_USE_POLL 0
363#endif
364
305#ifndef CLOCK_MONOTONIC 365#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 366# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 367# define EV_USE_MONOTONIC 0
308#endif 368#endif
309 369
… …
322# include <sys/select.h> 382# include <sys/select.h>
323# endif 383# endif
324#endif 384#endif
325 385
326#if EV_USE_INOTIFY 386#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 387# include <sys/statfs.h>
329# include <sys/inotify.h> 388# include <sys/inotify.h>
330/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 389/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331# ifndef IN_DONT_FOLLOW 390# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 391# undef EV_USE_INOTIFY
… …
339#endif 398#endif
340 399
341#if EV_USE_EVENTFD 400#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 401/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 402# include <stdint.h>
344# ifdef __cplusplus 403# ifndef EFD_NONBLOCK
345extern "C" { 404# define EFD_NONBLOCK O_NONBLOCK
346# endif 405# endif
347int eventfd (unsigned int initval, int flags); 406# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 407# ifdef O_CLOEXEC
349} 408# define EFD_CLOEXEC O_CLOEXEC
409# else
410# define EFD_CLOEXEC 02000000
411# endif
350# endif 412# endif
413EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
414#endif
415
416#if EV_USE_SIGNALFD
417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
418# include <stdint.h>
419# ifndef SFD_NONBLOCK
420# define SFD_NONBLOCK O_NONBLOCK
421# endif
422# ifndef SFD_CLOEXEC
423# ifdef O_CLOEXEC
424# define SFD_CLOEXEC O_CLOEXEC
425# else
426# define SFD_CLOEXEC 02000000
427# endif
428# endif
429EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
430
431struct signalfd_siginfo
432{
433 uint32_t ssi_signo;
434 char pad[128 - sizeof (uint32_t)];
435};
351#endif 436#endif
352 437
353/**/ 438/**/
354 439
355#if EV_VERIFY >= 3 440#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 441# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 442#else
358# define EV_FREQUENT_CHECK do { } while (0) 443# define EV_FREQUENT_CHECK do { } while (0)
359#endif 444#endif
360 445
361/* 446/*
… …
368 */ 453 */
369#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 454#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
370 455
371#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 456#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
372#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 457#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
373/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ 458
459#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
460#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
374 461
375#if __GNUC__ >= 4 462#if __GNUC__ >= 4
376# define expect(expr,value) __builtin_expect ((expr),(value)) 463# define expect(expr,value) __builtin_expect ((expr),(value))
377# define noinline __attribute__ ((noinline)) 464# define noinline __attribute__ ((noinline))
378#else 465#else
… …
385 472
386#define expect_false(expr) expect ((expr) != 0, 0) 473#define expect_false(expr) expect ((expr) != 0, 0)
387#define expect_true(expr) expect ((expr) != 0, 1) 474#define expect_true(expr) expect ((expr) != 0, 1)
388#define inline_size static inline 475#define inline_size static inline
389 476
390#if EV_MINIMAL 477#if EV_FEATURE_CODE
478# define inline_speed static inline
479#else
391# define inline_speed static noinline 480# define inline_speed static noinline
481#endif
482
483#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
484
485#if EV_MINPRI == EV_MAXPRI
486# define ABSPRI(w) (((W)w), 0)
392#else 487#else
393# define inline_speed static inline
394#endif
395
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 488# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
489#endif
398 490
399#define EMPTY /* required for microsofts broken pseudo-c compiler */ 491#define EMPTY /* required for microsofts broken pseudo-c compiler */
400#define EMPTY2(a,b) /* used to suppress some warnings */ 492#define EMPTY2(a,b) /* used to suppress some warnings */
401 493
402typedef ev_watcher *W; 494typedef ev_watcher *W;
… …
406#define ev_active(w) ((W)(w))->active 498#define ev_active(w) ((W)(w))->active
407#define ev_at(w) ((WT)(w))->at 499#define ev_at(w) ((WT)(w))->at
408 500
409#if EV_USE_REALTIME 501#if EV_USE_REALTIME
410/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 502/* sig_atomic_t is used to avoid per-thread variables or locking but still */
411/* giving it a reasonably high chance of working on typical architetcures */ 503/* giving it a reasonably high chance of working on typical architectures */
412static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 504static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
413#endif 505#endif
414 506
415#if EV_USE_MONOTONIC 507#if EV_USE_MONOTONIC
416static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 508static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
417#endif 509#endif
418 510
511#ifndef EV_FD_TO_WIN32_HANDLE
512# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
513#endif
514#ifndef EV_WIN32_HANDLE_TO_FD
515# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
516#endif
517#ifndef EV_WIN32_CLOSE_FD
518# define EV_WIN32_CLOSE_FD(fd) close (fd)
519#endif
520
419#ifdef _WIN32 521#ifdef _WIN32
420# include "ev_win32.c" 522# include "ev_win32.c"
421#endif 523#endif
422 524
423/*****************************************************************************/ 525/*****************************************************************************/
526
527#ifdef __linux
528# include <sys/utsname.h>
529#endif
530
531static unsigned int noinline
532ev_linux_version (void)
533{
534#ifdef __linux
535 unsigned int v = 0;
536 struct utsname buf;
537 int i;
538 char *p = buf.release;
539
540 if (uname (&buf))
541 return 0;
542
543 for (i = 3+1; --i; )
544 {
545 unsigned int c = 0;
546
547 for (;;)
548 {
549 if (*p >= '0' && *p <= '9')
550 c = c * 10 + *p++ - '0';
551 else
552 {
553 p += *p == '.';
554 break;
555 }
556 }
557
558 v = (v << 8) | c;
559 }
560
561 return v;
562#else
563 return 0;
564#endif
565}
566
567/*****************************************************************************/
568
569#if EV_AVOID_STDIO
570static void noinline
571ev_printerr (const char *msg)
572{
573 write (STDERR_FILENO, msg, strlen (msg));
574}
575#endif
424 576
425static void (*syserr_cb)(const char *msg); 577static void (*syserr_cb)(const char *msg);
426 578
427void 579void
428ev_set_syserr_cb (void (*cb)(const char *msg)) 580ev_set_syserr_cb (void (*cb)(const char *msg))
… …
438 590
439 if (syserr_cb) 591 if (syserr_cb)
440 syserr_cb (msg); 592 syserr_cb (msg);
441 else 593 else
442 { 594 {
595#if EV_AVOID_STDIO
596 ev_printerr (msg);
597 ev_printerr (": ");
598 ev_printerr (strerror (errno));
599 ev_printerr ("\n");
600#else
443 perror (msg); 601 perror (msg);
602#endif
444 abort (); 603 abort ();
445 } 604 }
446} 605}
447 606
448static void * 607static void *
449ev_realloc_emul (void *ptr, long size) 608ev_realloc_emul (void *ptr, long size)
450{ 609{
610#if __GLIBC__
611 return realloc (ptr, size);
612#else
451 /* some systems, notably openbsd and darwin, fail to properly 613 /* some systems, notably openbsd and darwin, fail to properly
452 * implement realloc (x, 0) (as required by both ansi c-98 and 614 * implement realloc (x, 0) (as required by both ansi c-89 and
453 * the single unix specification, so work around them here. 615 * the single unix specification, so work around them here.
454 */ 616 */
455 617
456 if (size) 618 if (size)
457 return realloc (ptr, size); 619 return realloc (ptr, size);
458 620
459 free (ptr); 621 free (ptr);
460 return 0; 622 return 0;
623#endif
461} 624}
462 625
463static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 626static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
464 627
465void 628void
… …
473{ 636{
474 ptr = alloc (ptr, size); 637 ptr = alloc (ptr, size);
475 638
476 if (!ptr && size) 639 if (!ptr && size)
477 { 640 {
641#if EV_AVOID_STDIO
642 ev_printerr ("(libev) memory allocation failed, aborting.\n");
643#else
478 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 644 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
645#endif
479 abort (); 646 abort ();
480 } 647 }
481 648
482 return ptr; 649 return ptr;
483} 650}
… …
485#define ev_malloc(size) ev_realloc (0, (size)) 652#define ev_malloc(size) ev_realloc (0, (size))
486#define ev_free(ptr) ev_realloc ((ptr), 0) 653#define ev_free(ptr) ev_realloc ((ptr), 0)
487 654
488/*****************************************************************************/ 655/*****************************************************************************/
489 656
657/* set in reify when reification needed */
658#define EV_ANFD_REIFY 1
659
490/* file descriptor info structure */ 660/* file descriptor info structure */
491typedef struct 661typedef struct
492{ 662{
493 WL head; 663 WL head;
494 unsigned char events; /* the events watched for */ 664 unsigned char events; /* the events watched for */
495 unsigned char reify; /* flag set when this ANFD needs reification */ 665 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
496 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 666 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
497 unsigned char unused; 667 unsigned char unused;
498#if EV_USE_EPOLL 668#if EV_USE_EPOLL
499 unsigned int egen; /* generation counter to counter epoll bugs */ 669 unsigned int egen; /* generation counter to counter epoll bugs */
500#endif 670#endif
501#if EV_SELECT_IS_WINSOCKET 671#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
502 SOCKET handle; 672 SOCKET handle;
673#endif
674#if EV_USE_IOCP
675 OVERLAPPED or, ow;
503#endif 676#endif
504} ANFD; 677} ANFD;
505 678
506/* stores the pending event set for a given watcher */ 679/* stores the pending event set for a given watcher */
507typedef struct 680typedef struct
… …
562 735
563 static int ev_default_loop_ptr; 736 static int ev_default_loop_ptr;
564 737
565#endif 738#endif
566 739
740#if EV_FEATURE_API
741# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
742# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
743# define EV_INVOKE_PENDING invoke_cb (EV_A)
744#else
745# define EV_RELEASE_CB (void)0
746# define EV_ACQUIRE_CB (void)0
747# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
748#endif
749
750#define EVBREAK_RECURSE 0x80
751
567/*****************************************************************************/ 752/*****************************************************************************/
568 753
569#ifndef EV_HAVE_EV_TIME 754#ifndef EV_HAVE_EV_TIME
570ev_tstamp 755ev_tstamp
571ev_time (void) 756ev_time (void)
… …
614 if (delay > 0.) 799 if (delay > 0.)
615 { 800 {
616#if EV_USE_NANOSLEEP 801#if EV_USE_NANOSLEEP
617 struct timespec ts; 802 struct timespec ts;
618 803
619 ts.tv_sec = (time_t)delay; 804 EV_TS_SET (ts, delay);
620 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
621
622 nanosleep (&ts, 0); 805 nanosleep (&ts, 0);
623#elif defined(_WIN32) 806#elif defined(_WIN32)
624 Sleep ((unsigned long)(delay * 1e3)); 807 Sleep ((unsigned long)(delay * 1e3));
625#else 808#else
626 struct timeval tv; 809 struct timeval tv;
627 810
628 tv.tv_sec = (time_t)delay;
629 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
630
631 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 811 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
632 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 812 /* something not guaranteed by newer posix versions, but guaranteed */
633 /* by older ones */ 813 /* by older ones */
814 EV_TV_SET (tv, delay);
634 select (0, 0, 0, 0, &tv); 815 select (0, 0, 0, 0, &tv);
635#endif 816#endif
636 } 817 }
637} 818}
638 819
820inline_speed int
821ev_timeout_to_ms (ev_tstamp timeout)
822{
823 int ms = timeout * 1000. + .999999;
824
825 return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
826}
827
639/*****************************************************************************/ 828/*****************************************************************************/
640 829
641#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 830#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
642 831
643/* find a suitable new size for the given array, */ 832/* find a suitable new size for the given array, */
644/* hopefully by rounding to a ncie-to-malloc size */ 833/* hopefully by rounding to a nice-to-malloc size */
645inline_size int 834inline_size int
646array_nextsize (int elem, int cur, int cnt) 835array_nextsize (int elem, int cur, int cnt)
647{ 836{
648 int ncur = cur + 1; 837 int ncur = cur + 1;
649 838
… …
745} 934}
746 935
747/*****************************************************************************/ 936/*****************************************************************************/
748 937
749inline_speed void 938inline_speed void
750fd_event (EV_P_ int fd, int revents) 939fd_event_nocheck (EV_P_ int fd, int revents)
751{ 940{
752 ANFD *anfd = anfds + fd; 941 ANFD *anfd = anfds + fd;
753 ev_io *w; 942 ev_io *w;
754 943
755 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 944 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
759 if (ev) 948 if (ev)
760 ev_feed_event (EV_A_ (W)w, ev); 949 ev_feed_event (EV_A_ (W)w, ev);
761 } 950 }
762} 951}
763 952
953/* do not submit kernel events for fds that have reify set */
954/* because that means they changed while we were polling for new events */
955inline_speed void
956fd_event (EV_P_ int fd, int revents)
957{
958 ANFD *anfd = anfds + fd;
959
960 if (expect_true (!anfd->reify))
961 fd_event_nocheck (EV_A_ fd, revents);
962}
963
764void 964void
765ev_feed_fd_event (EV_P_ int fd, int revents) 965ev_feed_fd_event (EV_P_ int fd, int revents)
766{ 966{
767 if (fd >= 0 && fd < anfdmax) 967 if (fd >= 0 && fd < anfdmax)
768 fd_event (EV_A_ fd, revents); 968 fd_event_nocheck (EV_A_ fd, revents);
769} 969}
770 970
771/* make sure the external fd watch events are in-sync */ 971/* make sure the external fd watch events are in-sync */
772/* with the kernel/libev internal state */ 972/* with the kernel/libev internal state */
773inline_size void 973inline_size void
… …
779 { 979 {
780 int fd = fdchanges [i]; 980 int fd = fdchanges [i];
781 ANFD *anfd = anfds + fd; 981 ANFD *anfd = anfds + fd;
782 ev_io *w; 982 ev_io *w;
783 983
784 unsigned char events = 0; 984 unsigned char o_events = anfd->events;
985 unsigned char o_reify = anfd->reify;
785 986
786 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 987 anfd->reify = 0;
787 events |= (unsigned char)w->events;
788 988
789#if EV_SELECT_IS_WINSOCKET 989#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
790 if (events) 990 if (o_reify & EV__IOFDSET)
791 { 991 {
792 unsigned long arg; 992 unsigned long arg;
793 #ifdef EV_FD_TO_WIN32_HANDLE
794 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 993 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
795 #else
796 anfd->handle = _get_osfhandle (fd);
797 #endif
798 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 994 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
995 printf ("oi %d %x\n", fd, anfd->handle);//D
799 } 996 }
800#endif 997#endif
801 998
999 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
802 { 1000 {
803 unsigned char o_events = anfd->events;
804 unsigned char o_reify = anfd->reify;
805
806 anfd->reify = 0;
807 anfd->events = events; 1001 anfd->events = 0;
808 1002
809 if (o_events != events || o_reify & EV__IOFDSET) 1003 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1004 anfd->events |= (unsigned char)w->events;
1005
1006 if (o_events != anfd->events)
1007 o_reify = EV__IOFDSET; /* actually |= */
1008 }
1009
1010 if (o_reify & EV__IOFDSET)
810 backend_modify (EV_A_ fd, o_events, events); 1011 backend_modify (EV_A_ fd, o_events, anfd->events);
811 }
812 } 1012 }
813 1013
814 fdchangecnt = 0; 1014 fdchangecnt = 0;
815} 1015}
816 1016
… …
840 ev_io_stop (EV_A_ w); 1040 ev_io_stop (EV_A_ w);
841 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1041 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
842 } 1042 }
843} 1043}
844 1044
845/* check whether the given fd is atcually valid, for error recovery */ 1045/* check whether the given fd is actually valid, for error recovery */
846inline_size int 1046inline_size int
847fd_valid (int fd) 1047fd_valid (int fd)
848{ 1048{
849#ifdef _WIN32 1049#ifdef _WIN32
850 return _get_osfhandle (fd) != -1; 1050 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
851#else 1051#else
852 return fcntl (fd, F_GETFD) != -1; 1052 return fcntl (fd, F_GETFD) != -1;
853#endif 1053#endif
854} 1054}
855 1055
… …
873 1073
874 for (fd = anfdmax; fd--; ) 1074 for (fd = anfdmax; fd--; )
875 if (anfds [fd].events) 1075 if (anfds [fd].events)
876 { 1076 {
877 fd_kill (EV_A_ fd); 1077 fd_kill (EV_A_ fd);
878 return; 1078 break;
879 } 1079 }
880} 1080}
881 1081
882/* usually called after fork if backend needs to re-arm all fds from scratch */ 1082/* usually called after fork if backend needs to re-arm all fds from scratch */
883static void noinline 1083static void noinline
… …
888 for (fd = 0; fd < anfdmax; ++fd) 1088 for (fd = 0; fd < anfdmax; ++fd)
889 if (anfds [fd].events) 1089 if (anfds [fd].events)
890 { 1090 {
891 anfds [fd].events = 0; 1091 anfds [fd].events = 0;
892 anfds [fd].emask = 0; 1092 anfds [fd].emask = 0;
893 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1093 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
894 } 1094 }
895} 1095}
896 1096
1097/* used to prepare libev internal fd's */
1098/* this is not fork-safe */
1099inline_speed void
1100fd_intern (int fd)
1101{
1102#ifdef _WIN32
1103 unsigned long arg = 1;
1104 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1105#else
1106 fcntl (fd, F_SETFD, FD_CLOEXEC);
1107 fcntl (fd, F_SETFL, O_NONBLOCK);
1108#endif
1109}
1110
897/*****************************************************************************/ 1111/*****************************************************************************/
898 1112
899/* 1113/*
900 * the heap functions want a real array index. array index 0 uis guaranteed to not 1114 * the heap functions want a real array index. array index 0 is guaranteed to not
901 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1115 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
902 * the branching factor of the d-tree. 1116 * the branching factor of the d-tree.
903 */ 1117 */
904 1118
905/* 1119/*
… …
973 1187
974 for (;;) 1188 for (;;)
975 { 1189 {
976 int c = k << 1; 1190 int c = k << 1;
977 1191
978 if (c > N + HEAP0 - 1) 1192 if (c >= N + HEAP0)
979 break; 1193 break;
980 1194
981 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1195 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
982 ? 1 : 0; 1196 ? 1 : 0;
983 1197
… …
1019 1233
1020/* move an element suitably so it is in a correct place */ 1234/* move an element suitably so it is in a correct place */
1021inline_size void 1235inline_size void
1022adjustheap (ANHE *heap, int N, int k) 1236adjustheap (ANHE *heap, int N, int k)
1023{ 1237{
1024 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1238 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1025 upheap (heap, k); 1239 upheap (heap, k);
1026 else 1240 else
1027 downheap (heap, N, k); 1241 downheap (heap, N, k);
1028} 1242}
1029 1243
… …
1042/*****************************************************************************/ 1256/*****************************************************************************/
1043 1257
1044/* associate signal watchers to a signal signal */ 1258/* associate signal watchers to a signal signal */
1045typedef struct 1259typedef struct
1046{ 1260{
1261 EV_ATOMIC_T pending;
1262#if EV_MULTIPLICITY
1263 EV_P;
1264#endif
1047 WL head; 1265 WL head;
1048 EV_ATOMIC_T gotsig;
1049} ANSIG; 1266} ANSIG;
1050 1267
1051static ANSIG *signals; 1268static ANSIG signals [EV_NSIG - 1];
1052static int signalmax;
1053
1054static EV_ATOMIC_T gotsig;
1055 1269
1056/*****************************************************************************/ 1270/*****************************************************************************/
1057 1271
1058/* used to prepare libev internal fd's */ 1272#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1059/* this is not fork-safe */
1060inline_speed void
1061fd_intern (int fd)
1062{
1063#ifdef _WIN32
1064 unsigned long arg = 1;
1065 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1066#else
1067 fcntl (fd, F_SETFD, FD_CLOEXEC);
1068 fcntl (fd, F_SETFL, O_NONBLOCK);
1069#endif
1070}
1071 1273
1072static void noinline 1274static void noinline
1073evpipe_init (EV_P) 1275evpipe_init (EV_P)
1074{ 1276{
1075 if (!ev_is_active (&pipe_w)) 1277 if (!ev_is_active (&pipe_w))
1076 { 1278 {
1077#if EV_USE_EVENTFD 1279# if EV_USE_EVENTFD
1280 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1281 if (evfd < 0 && errno == EINVAL)
1078 if ((evfd = eventfd (0, 0)) >= 0) 1282 evfd = eventfd (0, 0);
1283
1284 if (evfd >= 0)
1079 { 1285 {
1080 evpipe [0] = -1; 1286 evpipe [0] = -1;
1081 fd_intern (evfd); 1287 fd_intern (evfd); /* doing it twice doesn't hurt */
1082 ev_io_set (&pipe_w, evfd, EV_READ); 1288 ev_io_set (&pipe_w, evfd, EV_READ);
1083 } 1289 }
1084 else 1290 else
1085#endif 1291# endif
1086 { 1292 {
1087 while (pipe (evpipe)) 1293 while (pipe (evpipe))
1088 ev_syserr ("(libev) error creating signal/async pipe"); 1294 ev_syserr ("(libev) error creating signal/async pipe");
1089 1295
1090 fd_intern (evpipe [0]); 1296 fd_intern (evpipe [0]);
… …
1101evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1307evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1102{ 1308{
1103 if (!*flag) 1309 if (!*flag)
1104 { 1310 {
1105 int old_errno = errno; /* save errno because write might clobber it */ 1311 int old_errno = errno; /* save errno because write might clobber it */
1312 char dummy;
1106 1313
1107 *flag = 1; 1314 *flag = 1;
1108 1315
1109#if EV_USE_EVENTFD 1316#if EV_USE_EVENTFD
1110 if (evfd >= 0) 1317 if (evfd >= 0)
… …
1112 uint64_t counter = 1; 1319 uint64_t counter = 1;
1113 write (evfd, &counter, sizeof (uint64_t)); 1320 write (evfd, &counter, sizeof (uint64_t));
1114 } 1321 }
1115 else 1322 else
1116#endif 1323#endif
1324 /* win32 people keep sending patches that change this write() to send() */
1325 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1326 /* so when you think this write should be a send instead, please find out */
1327 /* where your send() is from - it's definitely not the microsoft send, and */
1328 /* tell me. thank you. */
1117 write (evpipe [1], &old_errno, 1); 1329 write (evpipe [1], &dummy, 1);
1118 1330
1119 errno = old_errno; 1331 errno = old_errno;
1120 } 1332 }
1121} 1333}
1122 1334
1123/* called whenever the libev signal pipe */ 1335/* called whenever the libev signal pipe */
1124/* got some events (signal, async) */ 1336/* got some events (signal, async) */
1125static void 1337static void
1126pipecb (EV_P_ ev_io *iow, int revents) 1338pipecb (EV_P_ ev_io *iow, int revents)
1127{ 1339{
1340 int i;
1341
1128#if EV_USE_EVENTFD 1342#if EV_USE_EVENTFD
1129 if (evfd >= 0) 1343 if (evfd >= 0)
1130 { 1344 {
1131 uint64_t counter; 1345 uint64_t counter;
1132 read (evfd, &counter, sizeof (uint64_t)); 1346 read (evfd, &counter, sizeof (uint64_t));
1133 } 1347 }
1134 else 1348 else
1135#endif 1349#endif
1136 { 1350 {
1137 char dummy; 1351 char dummy;
1352 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1138 read (evpipe [0], &dummy, 1); 1353 read (evpipe [0], &dummy, 1);
1139 } 1354 }
1140 1355
1141 if (gotsig && ev_is_default_loop (EV_A)) 1356 if (sig_pending)
1142 { 1357 {
1143 int signum; 1358 sig_pending = 0;
1144 gotsig = 0;
1145 1359
1146 for (signum = signalmax; signum--; ) 1360 for (i = EV_NSIG - 1; i--; )
1147 if (signals [signum].gotsig) 1361 if (expect_false (signals [i].pending))
1148 ev_feed_signal_event (EV_A_ signum + 1); 1362 ev_feed_signal_event (EV_A_ i + 1);
1149 } 1363 }
1150 1364
1151#if EV_ASYNC_ENABLE 1365#if EV_ASYNC_ENABLE
1152 if (gotasync) 1366 if (async_pending)
1153 { 1367 {
1154 int i; 1368 async_pending = 0;
1155 gotasync = 0;
1156 1369
1157 for (i = asynccnt; i--; ) 1370 for (i = asynccnt; i--; )
1158 if (asyncs [i]->sent) 1371 if (asyncs [i]->sent)
1159 { 1372 {
1160 asyncs [i]->sent = 0; 1373 asyncs [i]->sent = 0;
… …
1164#endif 1377#endif
1165} 1378}
1166 1379
1167/*****************************************************************************/ 1380/*****************************************************************************/
1168 1381
1382void
1383ev_feed_signal (int signum)
1384{
1385#if EV_MULTIPLICITY
1386 EV_P = signals [signum - 1].loop;
1387
1388 if (!EV_A)
1389 return;
1390#endif
1391
1392 signals [signum - 1].pending = 1;
1393 evpipe_write (EV_A_ &sig_pending);
1394}
1395
1169static void 1396static void
1170ev_sighandler (int signum) 1397ev_sighandler (int signum)
1171{ 1398{
1172#if EV_MULTIPLICITY
1173 struct ev_loop *loop = &default_loop_struct;
1174#endif
1175
1176#if _WIN32 1399#ifdef _WIN32
1177 signal (signum, ev_sighandler); 1400 signal (signum, ev_sighandler);
1178#endif 1401#endif
1179 1402
1180 signals [signum - 1].gotsig = 1; 1403 ev_feed_signal (signum);
1181 evpipe_write (EV_A_ &gotsig);
1182} 1404}
1183 1405
1184void noinline 1406void noinline
1185ev_feed_signal_event (EV_P_ int signum) 1407ev_feed_signal_event (EV_P_ int signum)
1186{ 1408{
1187 WL w; 1409 WL w;
1188 1410
1411 if (expect_false (signum <= 0 || signum > EV_NSIG))
1412 return;
1413
1414 --signum;
1415
1189#if EV_MULTIPLICITY 1416#if EV_MULTIPLICITY
1190 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1417 /* it is permissible to try to feed a signal to the wrong loop */
1191#endif 1418 /* or, likely more useful, feeding a signal nobody is waiting for */
1192 1419
1193 --signum; 1420 if (expect_false (signals [signum].loop != EV_A))
1194
1195 if (signum < 0 || signum >= signalmax)
1196 return; 1421 return;
1422#endif
1197 1423
1198 signals [signum].gotsig = 0; 1424 signals [signum].pending = 0;
1199 1425
1200 for (w = signals [signum].head; w; w = w->next) 1426 for (w = signals [signum].head; w; w = w->next)
1201 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1427 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1202} 1428}
1203 1429
1430#if EV_USE_SIGNALFD
1431static void
1432sigfdcb (EV_P_ ev_io *iow, int revents)
1433{
1434 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1435
1436 for (;;)
1437 {
1438 ssize_t res = read (sigfd, si, sizeof (si));
1439
1440 /* not ISO-C, as res might be -1, but works with SuS */
1441 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1442 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1443
1444 if (res < (ssize_t)sizeof (si))
1445 break;
1446 }
1447}
1448#endif
1449
1450#endif
1451
1204/*****************************************************************************/ 1452/*****************************************************************************/
1205 1453
1454#if EV_CHILD_ENABLE
1206static WL childs [EV_PID_HASHSIZE]; 1455static WL childs [EV_PID_HASHSIZE];
1207
1208#ifndef _WIN32
1209 1456
1210static ev_signal childev; 1457static ev_signal childev;
1211 1458
1212#ifndef WIFCONTINUED 1459#ifndef WIFCONTINUED
1213# define WIFCONTINUED(status) 0 1460# define WIFCONTINUED(status) 0
… …
1218child_reap (EV_P_ int chain, int pid, int status) 1465child_reap (EV_P_ int chain, int pid, int status)
1219{ 1466{
1220 ev_child *w; 1467 ev_child *w;
1221 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1468 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1222 1469
1223 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1470 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1224 { 1471 {
1225 if ((w->pid == pid || !w->pid) 1472 if ((w->pid == pid || !w->pid)
1226 && (!traced || (w->flags & 1))) 1473 && (!traced || (w->flags & 1)))
1227 { 1474 {
1228 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1475 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1253 /* make sure we are called again until all children have been reaped */ 1500 /* make sure we are called again until all children have been reaped */
1254 /* we need to do it this way so that the callback gets called before we continue */ 1501 /* we need to do it this way so that the callback gets called before we continue */
1255 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1502 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1256 1503
1257 child_reap (EV_A_ pid, pid, status); 1504 child_reap (EV_A_ pid, pid, status);
1258 if (EV_PID_HASHSIZE > 1) 1505 if ((EV_PID_HASHSIZE) > 1)
1259 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1506 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1260} 1507}
1261 1508
1262#endif 1509#endif
1263 1510
1264/*****************************************************************************/ 1511/*****************************************************************************/
1265 1512
1513#if EV_USE_IOCP
1514# include "ev_iocp.c"
1515#endif
1266#if EV_USE_PORT 1516#if EV_USE_PORT
1267# include "ev_port.c" 1517# include "ev_port.c"
1268#endif 1518#endif
1269#if EV_USE_KQUEUE 1519#if EV_USE_KQUEUE
1270# include "ev_kqueue.c" 1520# include "ev_kqueue.c"
… …
1330#ifdef __APPLE__ 1580#ifdef __APPLE__
1331 /* only select works correctly on that "unix-certified" platform */ 1581 /* only select works correctly on that "unix-certified" platform */
1332 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1582 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1333 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1583 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1334#endif 1584#endif
1585#ifdef __FreeBSD__
1586 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1587#endif
1335 1588
1336 return flags; 1589 return flags;
1337} 1590}
1338 1591
1339unsigned int 1592unsigned int
1340ev_embeddable_backends (void) 1593ev_embeddable_backends (void)
1341{ 1594{
1342 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1595 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1343 1596
1344 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1597 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1345 /* please fix it and tell me how to detect the fix */ 1598 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1346 flags &= ~EVBACKEND_EPOLL; 1599 flags &= ~EVBACKEND_EPOLL;
1347 1600
1348 return flags; 1601 return flags;
1349} 1602}
1350 1603
1351unsigned int 1604unsigned int
1352ev_backend (EV_P) 1605ev_backend (EV_P)
1353{ 1606{
1354 return backend; 1607 return backend;
1355} 1608}
1356 1609
1610#if EV_FEATURE_API
1357unsigned int 1611unsigned int
1358ev_loop_count (EV_P) 1612ev_iteration (EV_P)
1359{ 1613{
1360 return loop_count; 1614 return loop_count;
1361} 1615}
1362 1616
1617unsigned int
1618ev_depth (EV_P)
1619{
1620 return loop_depth;
1621}
1622
1363void 1623void
1364ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1624ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1365{ 1625{
1366 io_blocktime = interval; 1626 io_blocktime = interval;
1367} 1627}
… …
1369void 1629void
1370ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1630ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1371{ 1631{
1372 timeout_blocktime = interval; 1632 timeout_blocktime = interval;
1373} 1633}
1634
1635void
1636ev_set_userdata (EV_P_ void *data)
1637{
1638 userdata = data;
1639}
1640
1641void *
1642ev_userdata (EV_P)
1643{
1644 return userdata;
1645}
1646
1647void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1648{
1649 invoke_cb = invoke_pending_cb;
1650}
1651
1652void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1653{
1654 release_cb = release;
1655 acquire_cb = acquire;
1656}
1657#endif
1374 1658
1375/* initialise a loop structure, must be zero-initialised */ 1659/* initialise a loop structure, must be zero-initialised */
1376static void noinline 1660static void noinline
1377loop_init (EV_P_ unsigned int flags) 1661loop_init (EV_P_ unsigned int flags)
1378{ 1662{
1379 if (!backend) 1663 if (!backend)
1380 { 1664 {
1665 origflags = flags;
1666
1381#if EV_USE_REALTIME 1667#if EV_USE_REALTIME
1382 if (!have_realtime) 1668 if (!have_realtime)
1383 { 1669 {
1384 struct timespec ts; 1670 struct timespec ts;
1385 1671
… …
1396 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1682 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1397 have_monotonic = 1; 1683 have_monotonic = 1;
1398 } 1684 }
1399#endif 1685#endif
1400 1686
1687 /* pid check not overridable via env */
1688#ifndef _WIN32
1689 if (flags & EVFLAG_FORKCHECK)
1690 curpid = getpid ();
1691#endif
1692
1693 if (!(flags & EVFLAG_NOENV)
1694 && !enable_secure ()
1695 && getenv ("LIBEV_FLAGS"))
1696 flags = atoi (getenv ("LIBEV_FLAGS"));
1697
1401 ev_rt_now = ev_time (); 1698 ev_rt_now = ev_time ();
1402 mn_now = get_clock (); 1699 mn_now = get_clock ();
1403 now_floor = mn_now; 1700 now_floor = mn_now;
1404 rtmn_diff = ev_rt_now - mn_now; 1701 rtmn_diff = ev_rt_now - mn_now;
1702#if EV_FEATURE_API
1703 invoke_cb = ev_invoke_pending;
1704#endif
1405 1705
1406 io_blocktime = 0.; 1706 io_blocktime = 0.;
1407 timeout_blocktime = 0.; 1707 timeout_blocktime = 0.;
1408 backend = 0; 1708 backend = 0;
1409 backend_fd = -1; 1709 backend_fd = -1;
1410 gotasync = 0; 1710 sig_pending = 0;
1711#if EV_ASYNC_ENABLE
1712 async_pending = 0;
1713#endif
1411#if EV_USE_INOTIFY 1714#if EV_USE_INOTIFY
1412 fs_fd = -2; 1715 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1413#endif 1716#endif
1414 1717#if EV_USE_SIGNALFD
1415 /* pid check not overridable via env */ 1718 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1416#ifndef _WIN32
1417 if (flags & EVFLAG_FORKCHECK)
1418 curpid = getpid ();
1419#endif 1719#endif
1420 1720
1421 if (!(flags & EVFLAG_NOENV) 1721 if (!(flags & EVBACKEND_MASK))
1422 && !enable_secure ()
1423 && getenv ("LIBEV_FLAGS"))
1424 flags = atoi (getenv ("LIBEV_FLAGS"));
1425
1426 if (!(flags & 0x0000ffffU))
1427 flags |= ev_recommended_backends (); 1722 flags |= ev_recommended_backends ();
1428 1723
1724#if EV_USE_IOCP
1725 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1726#endif
1429#if EV_USE_PORT 1727#if EV_USE_PORT
1430 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1728 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1431#endif 1729#endif
1432#if EV_USE_KQUEUE 1730#if EV_USE_KQUEUE
1433 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1731 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1442 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1740 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1443#endif 1741#endif
1444 1742
1445 ev_prepare_init (&pending_w, pendingcb); 1743 ev_prepare_init (&pending_w, pendingcb);
1446 1744
1745#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1447 ev_init (&pipe_w, pipecb); 1746 ev_init (&pipe_w, pipecb);
1448 ev_set_priority (&pipe_w, EV_MAXPRI); 1747 ev_set_priority (&pipe_w, EV_MAXPRI);
1748#endif
1449 } 1749 }
1450} 1750}
1451 1751
1452/* free up a loop structure */ 1752/* free up a loop structure */
1453static void noinline 1753void
1454loop_destroy (EV_P) 1754ev_loop_destroy (EV_P)
1455{ 1755{
1456 int i; 1756 int i;
1457 1757
1758#if EV_MULTIPLICITY
1759 /* mimic free (0) */
1760 if (!EV_A)
1761 return;
1762#endif
1763
1764#if EV_CLEANUP_ENABLE
1765 /* queue cleanup watchers (and execute them) */
1766 if (expect_false (cleanupcnt))
1767 {
1768 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1769 EV_INVOKE_PENDING;
1770 }
1771#endif
1772
1773#if EV_CHILD_ENABLE
1774 if (ev_is_active (&childev))
1775 {
1776 ev_ref (EV_A); /* child watcher */
1777 ev_signal_stop (EV_A_ &childev);
1778 }
1779#endif
1780
1458 if (ev_is_active (&pipe_w)) 1781 if (ev_is_active (&pipe_w))
1459 { 1782 {
1460 ev_ref (EV_A); /* signal watcher */ 1783 /*ev_ref (EV_A);*/
1461 ev_io_stop (EV_A_ &pipe_w); 1784 /*ev_io_stop (EV_A_ &pipe_w);*/
1462 1785
1463#if EV_USE_EVENTFD 1786#if EV_USE_EVENTFD
1464 if (evfd >= 0) 1787 if (evfd >= 0)
1465 close (evfd); 1788 close (evfd);
1466#endif 1789#endif
1467 1790
1468 if (evpipe [0] >= 0) 1791 if (evpipe [0] >= 0)
1469 { 1792 {
1470 close (evpipe [0]); 1793 EV_WIN32_CLOSE_FD (evpipe [0]);
1471 close (evpipe [1]); 1794 EV_WIN32_CLOSE_FD (evpipe [1]);
1472 } 1795 }
1473 } 1796 }
1797
1798#if EV_USE_SIGNALFD
1799 if (ev_is_active (&sigfd_w))
1800 close (sigfd);
1801#endif
1474 1802
1475#if EV_USE_INOTIFY 1803#if EV_USE_INOTIFY
1476 if (fs_fd >= 0) 1804 if (fs_fd >= 0)
1477 close (fs_fd); 1805 close (fs_fd);
1478#endif 1806#endif
1479 1807
1480 if (backend_fd >= 0) 1808 if (backend_fd >= 0)
1481 close (backend_fd); 1809 close (backend_fd);
1482 1810
1811#if EV_USE_IOCP
1812 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1813#endif
1483#if EV_USE_PORT 1814#if EV_USE_PORT
1484 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1815 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1485#endif 1816#endif
1486#if EV_USE_KQUEUE 1817#if EV_USE_KQUEUE
1487 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1818 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1502#if EV_IDLE_ENABLE 1833#if EV_IDLE_ENABLE
1503 array_free (idle, [i]); 1834 array_free (idle, [i]);
1504#endif 1835#endif
1505 } 1836 }
1506 1837
1507 ev_free (anfds); anfdmax = 0; 1838 ev_free (anfds); anfds = 0; anfdmax = 0;
1508 1839
1509 /* have to use the microsoft-never-gets-it-right macro */ 1840 /* have to use the microsoft-never-gets-it-right macro */
1510 array_free (rfeed, EMPTY); 1841 array_free (rfeed, EMPTY);
1511 array_free (fdchange, EMPTY); 1842 array_free (fdchange, EMPTY);
1512 array_free (timer, EMPTY); 1843 array_free (timer, EMPTY);
… …
1514 array_free (periodic, EMPTY); 1845 array_free (periodic, EMPTY);
1515#endif 1846#endif
1516#if EV_FORK_ENABLE 1847#if EV_FORK_ENABLE
1517 array_free (fork, EMPTY); 1848 array_free (fork, EMPTY);
1518#endif 1849#endif
1850#if EV_CLEANUP_ENABLE
1851 array_free (cleanup, EMPTY);
1852#endif
1519 array_free (prepare, EMPTY); 1853 array_free (prepare, EMPTY);
1520 array_free (check, EMPTY); 1854 array_free (check, EMPTY);
1521#if EV_ASYNC_ENABLE 1855#if EV_ASYNC_ENABLE
1522 array_free (async, EMPTY); 1856 array_free (async, EMPTY);
1523#endif 1857#endif
1524 1858
1525 backend = 0; 1859 backend = 0;
1860
1861#if EV_MULTIPLICITY
1862 if (ev_is_default_loop (EV_A))
1863#endif
1864 ev_default_loop_ptr = 0;
1865#if EV_MULTIPLICITY
1866 else
1867 ev_free (EV_A);
1868#endif
1526} 1869}
1527 1870
1528#if EV_USE_INOTIFY 1871#if EV_USE_INOTIFY
1529inline_size void infy_fork (EV_P); 1872inline_size void infy_fork (EV_P);
1530#endif 1873#endif
… …
1547 1890
1548 if (ev_is_active (&pipe_w)) 1891 if (ev_is_active (&pipe_w))
1549 { 1892 {
1550 /* this "locks" the handlers against writing to the pipe */ 1893 /* this "locks" the handlers against writing to the pipe */
1551 /* while we modify the fd vars */ 1894 /* while we modify the fd vars */
1552 gotsig = 1; 1895 sig_pending = 1;
1553#if EV_ASYNC_ENABLE 1896#if EV_ASYNC_ENABLE
1554 gotasync = 1; 1897 async_pending = 1;
1555#endif 1898#endif
1556 1899
1557 ev_ref (EV_A); 1900 ev_ref (EV_A);
1558 ev_io_stop (EV_A_ &pipe_w); 1901 ev_io_stop (EV_A_ &pipe_w);
1559 1902
… …
1562 close (evfd); 1905 close (evfd);
1563#endif 1906#endif
1564 1907
1565 if (evpipe [0] >= 0) 1908 if (evpipe [0] >= 0)
1566 { 1909 {
1567 close (evpipe [0]); 1910 EV_WIN32_CLOSE_FD (evpipe [0]);
1568 close (evpipe [1]); 1911 EV_WIN32_CLOSE_FD (evpipe [1]);
1569 } 1912 }
1570 1913
1914#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1571 evpipe_init (EV_A); 1915 evpipe_init (EV_A);
1572 /* now iterate over everything, in case we missed something */ 1916 /* now iterate over everything, in case we missed something */
1573 pipecb (EV_A_ &pipe_w, EV_READ); 1917 pipecb (EV_A_ &pipe_w, EV_READ);
1918#endif
1574 } 1919 }
1575 1920
1576 postfork = 0; 1921 postfork = 0;
1577} 1922}
1578 1923
1579#if EV_MULTIPLICITY 1924#if EV_MULTIPLICITY
1580 1925
1581struct ev_loop * 1926struct ev_loop *
1582ev_loop_new (unsigned int flags) 1927ev_loop_new (unsigned int flags)
1583{ 1928{
1584 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1929 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1585 1930
1586 memset (loop, 0, sizeof (struct ev_loop)); 1931 memset (EV_A, 0, sizeof (struct ev_loop));
1587
1588 loop_init (EV_A_ flags); 1932 loop_init (EV_A_ flags);
1589 1933
1590 if (ev_backend (EV_A)) 1934 if (ev_backend (EV_A))
1591 return loop; 1935 return EV_A;
1592 1936
1937 ev_free (EV_A);
1593 return 0; 1938 return 0;
1594} 1939}
1595 1940
1596void 1941#endif /* multiplicity */
1597ev_loop_destroy (EV_P)
1598{
1599 loop_destroy (EV_A);
1600 ev_free (loop);
1601}
1602
1603void
1604ev_loop_fork (EV_P)
1605{
1606 postfork = 1; /* must be in line with ev_default_fork */
1607}
1608 1942
1609#if EV_VERIFY 1943#if EV_VERIFY
1610static void noinline 1944static void noinline
1611verify_watcher (EV_P_ W w) 1945verify_watcher (EV_P_ W w)
1612{ 1946{
… …
1640 verify_watcher (EV_A_ ws [cnt]); 1974 verify_watcher (EV_A_ ws [cnt]);
1641 } 1975 }
1642} 1976}
1643#endif 1977#endif
1644 1978
1979#if EV_FEATURE_API
1645void 1980void
1646ev_loop_verify (EV_P) 1981ev_verify (EV_P)
1647{ 1982{
1648#if EV_VERIFY 1983#if EV_VERIFY
1649 int i; 1984 int i;
1650 WL w; 1985 WL w;
1651 1986
… …
1685#if EV_FORK_ENABLE 2020#if EV_FORK_ENABLE
1686 assert (forkmax >= forkcnt); 2021 assert (forkmax >= forkcnt);
1687 array_verify (EV_A_ (W *)forks, forkcnt); 2022 array_verify (EV_A_ (W *)forks, forkcnt);
1688#endif 2023#endif
1689 2024
2025#if EV_CLEANUP_ENABLE
2026 assert (cleanupmax >= cleanupcnt);
2027 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2028#endif
2029
1690#if EV_ASYNC_ENABLE 2030#if EV_ASYNC_ENABLE
1691 assert (asyncmax >= asynccnt); 2031 assert (asyncmax >= asynccnt);
1692 array_verify (EV_A_ (W *)asyncs, asynccnt); 2032 array_verify (EV_A_ (W *)asyncs, asynccnt);
1693#endif 2033#endif
1694 2034
2035#if EV_PREPARE_ENABLE
1695 assert (preparemax >= preparecnt); 2036 assert (preparemax >= preparecnt);
1696 array_verify (EV_A_ (W *)prepares, preparecnt); 2037 array_verify (EV_A_ (W *)prepares, preparecnt);
2038#endif
1697 2039
2040#if EV_CHECK_ENABLE
1698 assert (checkmax >= checkcnt); 2041 assert (checkmax >= checkcnt);
1699 array_verify (EV_A_ (W *)checks, checkcnt); 2042 array_verify (EV_A_ (W *)checks, checkcnt);
2043#endif
1700 2044
1701# if 0 2045# if 0
2046#if EV_CHILD_ENABLE
1702 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2047 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1703 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2048 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2049#endif
1704# endif 2050# endif
1705#endif 2051#endif
1706} 2052}
1707 2053#endif
1708#endif /* multiplicity */
1709 2054
1710#if EV_MULTIPLICITY 2055#if EV_MULTIPLICITY
1711struct ev_loop * 2056struct ev_loop *
1712ev_default_loop_init (unsigned int flags)
1713#else 2057#else
1714int 2058int
2059#endif
1715ev_default_loop (unsigned int flags) 2060ev_default_loop (unsigned int flags)
1716#endif
1717{ 2061{
1718 if (!ev_default_loop_ptr) 2062 if (!ev_default_loop_ptr)
1719 { 2063 {
1720#if EV_MULTIPLICITY 2064#if EV_MULTIPLICITY
1721 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2065 EV_P = ev_default_loop_ptr = &default_loop_struct;
1722#else 2066#else
1723 ev_default_loop_ptr = 1; 2067 ev_default_loop_ptr = 1;
1724#endif 2068#endif
1725 2069
1726 loop_init (EV_A_ flags); 2070 loop_init (EV_A_ flags);
1727 2071
1728 if (ev_backend (EV_A)) 2072 if (ev_backend (EV_A))
1729 { 2073 {
1730#ifndef _WIN32 2074#if EV_CHILD_ENABLE
1731 ev_signal_init (&childev, childcb, SIGCHLD); 2075 ev_signal_init (&childev, childcb, SIGCHLD);
1732 ev_set_priority (&childev, EV_MAXPRI); 2076 ev_set_priority (&childev, EV_MAXPRI);
1733 ev_signal_start (EV_A_ &childev); 2077 ev_signal_start (EV_A_ &childev);
1734 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2078 ev_unref (EV_A); /* child watcher should not keep loop alive */
1735#endif 2079#endif
… …
1740 2084
1741 return ev_default_loop_ptr; 2085 return ev_default_loop_ptr;
1742} 2086}
1743 2087
1744void 2088void
1745ev_default_destroy (void) 2089ev_loop_fork (EV_P)
1746{ 2090{
1747#if EV_MULTIPLICITY
1748 struct ev_loop *loop = ev_default_loop_ptr;
1749#endif
1750
1751 ev_default_loop_ptr = 0;
1752
1753#ifndef _WIN32
1754 ev_ref (EV_A); /* child watcher */
1755 ev_signal_stop (EV_A_ &childev);
1756#endif
1757
1758 loop_destroy (EV_A);
1759}
1760
1761void
1762ev_default_fork (void)
1763{
1764#if EV_MULTIPLICITY
1765 struct ev_loop *loop = ev_default_loop_ptr;
1766#endif
1767
1768 postfork = 1; /* must be in line with ev_loop_fork */ 2091 postfork = 1; /* must be in line with ev_default_fork */
1769} 2092}
1770 2093
1771/*****************************************************************************/ 2094/*****************************************************************************/
1772 2095
1773void 2096void
1774ev_invoke (EV_P_ void *w, int revents) 2097ev_invoke (EV_P_ void *w, int revents)
1775{ 2098{
1776 EV_CB_INVOKE ((W)w, revents); 2099 EV_CB_INVOKE ((W)w, revents);
1777} 2100}
1778 2101
1779inline_speed void 2102unsigned int
1780call_pending (EV_P) 2103ev_pending_count (EV_P)
2104{
2105 int pri;
2106 unsigned int count = 0;
2107
2108 for (pri = NUMPRI; pri--; )
2109 count += pendingcnt [pri];
2110
2111 return count;
2112}
2113
2114void noinline
2115ev_invoke_pending (EV_P)
1781{ 2116{
1782 int pri; 2117 int pri;
1783 2118
1784 for (pri = NUMPRI; pri--; ) 2119 for (pri = NUMPRI; pri--; )
1785 while (pendingcnt [pri]) 2120 while (pendingcnt [pri])
1786 { 2121 {
1787 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2122 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1788
1789 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1790 /* ^ this is no longer true, as pending_w could be here */
1791 2123
1792 p->w->pending = 0; 2124 p->w->pending = 0;
1793 EV_CB_INVOKE (p->w, p->events); 2125 EV_CB_INVOKE (p->w, p->events);
1794 EV_FREQUENT_CHECK; 2126 EV_FREQUENT_CHECK;
1795 } 2127 }
… …
1852 EV_FREQUENT_CHECK; 2184 EV_FREQUENT_CHECK;
1853 feed_reverse (EV_A_ (W)w); 2185 feed_reverse (EV_A_ (W)w);
1854 } 2186 }
1855 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2187 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1856 2188
1857 feed_reverse_done (EV_A_ EV_TIMEOUT); 2189 feed_reverse_done (EV_A_ EV_TIMER);
1858 } 2190 }
1859} 2191}
1860 2192
1861#if EV_PERIODIC_ENABLE 2193#if EV_PERIODIC_ENABLE
1862/* make periodics pending */ 2194/* make periodics pending */
… …
1915 feed_reverse_done (EV_A_ EV_PERIODIC); 2247 feed_reverse_done (EV_A_ EV_PERIODIC);
1916 } 2248 }
1917} 2249}
1918 2250
1919/* simply recalculate all periodics */ 2251/* simply recalculate all periodics */
1920/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2252/* TODO: maybe ensure that at least one event happens when jumping forward? */
1921static void noinline 2253static void noinline
1922periodics_reschedule (EV_P) 2254periodics_reschedule (EV_P)
1923{ 2255{
1924 int i; 2256 int i;
1925 2257
… …
1953 ANHE_at_cache (*he); 2285 ANHE_at_cache (*he);
1954 } 2286 }
1955} 2287}
1956 2288
1957/* fetch new monotonic and realtime times from the kernel */ 2289/* fetch new monotonic and realtime times from the kernel */
1958/* also detetc if there was a timejump, and act accordingly */ 2290/* also detect if there was a timejump, and act accordingly */
1959inline_speed void 2291inline_speed void
1960time_update (EV_P_ ev_tstamp max_block) 2292time_update (EV_P_ ev_tstamp max_block)
1961{ 2293{
1962#if EV_USE_MONOTONIC 2294#if EV_USE_MONOTONIC
1963 if (expect_true (have_monotonic)) 2295 if (expect_true (have_monotonic))
… …
2020 2352
2021 mn_now = ev_rt_now; 2353 mn_now = ev_rt_now;
2022 } 2354 }
2023} 2355}
2024 2356
2025static int loop_done;
2026
2027void 2357void
2028ev_loop (EV_P_ int flags) 2358ev_run (EV_P_ int flags)
2029{ 2359{
2360#if EV_FEATURE_API
2361 ++loop_depth;
2362#endif
2363
2364 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2365
2030 loop_done = EVUNLOOP_CANCEL; 2366 loop_done = EVBREAK_CANCEL;
2031 2367
2032 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2368 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2033 2369
2034 do 2370 do
2035 { 2371 {
2036#if EV_VERIFY >= 2 2372#if EV_VERIFY >= 2
2037 ev_loop_verify (EV_A); 2373 ev_verify (EV_A);
2038#endif 2374#endif
2039 2375
2040#ifndef _WIN32 2376#ifndef _WIN32
2041 if (expect_false (curpid)) /* penalise the forking check even more */ 2377 if (expect_false (curpid)) /* penalise the forking check even more */
2042 if (expect_false (getpid () != curpid)) 2378 if (expect_false (getpid () != curpid))
… …
2050 /* we might have forked, so queue fork handlers */ 2386 /* we might have forked, so queue fork handlers */
2051 if (expect_false (postfork)) 2387 if (expect_false (postfork))
2052 if (forkcnt) 2388 if (forkcnt)
2053 { 2389 {
2054 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2390 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2055 call_pending (EV_A); 2391 EV_INVOKE_PENDING;
2056 } 2392 }
2057#endif 2393#endif
2058 2394
2395#if EV_PREPARE_ENABLE
2059 /* queue prepare watchers (and execute them) */ 2396 /* queue prepare watchers (and execute them) */
2060 if (expect_false (preparecnt)) 2397 if (expect_false (preparecnt))
2061 { 2398 {
2062 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2399 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2063 call_pending (EV_A); 2400 EV_INVOKE_PENDING;
2064 } 2401 }
2402#endif
2403
2404 if (expect_false (loop_done))
2405 break;
2065 2406
2066 /* we might have forked, so reify kernel state if necessary */ 2407 /* we might have forked, so reify kernel state if necessary */
2067 if (expect_false (postfork)) 2408 if (expect_false (postfork))
2068 loop_fork (EV_A); 2409 loop_fork (EV_A);
2069 2410
… …
2073 /* calculate blocking time */ 2414 /* calculate blocking time */
2074 { 2415 {
2075 ev_tstamp waittime = 0.; 2416 ev_tstamp waittime = 0.;
2076 ev_tstamp sleeptime = 0.; 2417 ev_tstamp sleeptime = 0.;
2077 2418
2419 /* remember old timestamp for io_blocktime calculation */
2420 ev_tstamp prev_mn_now = mn_now;
2421
2422 /* update time to cancel out callback processing overhead */
2423 time_update (EV_A_ 1e100);
2424
2078 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2425 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2079 { 2426 {
2080 /* update time to cancel out callback processing overhead */
2081 time_update (EV_A_ 1e100);
2082
2083 waittime = MAX_BLOCKTIME; 2427 waittime = MAX_BLOCKTIME;
2084 2428
2085 if (timercnt) 2429 if (timercnt)
2086 { 2430 {
2087 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2431 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
2094 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2438 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2095 if (waittime > to) waittime = to; 2439 if (waittime > to) waittime = to;
2096 } 2440 }
2097#endif 2441#endif
2098 2442
2443 /* don't let timeouts decrease the waittime below timeout_blocktime */
2099 if (expect_false (waittime < timeout_blocktime)) 2444 if (expect_false (waittime < timeout_blocktime))
2100 waittime = timeout_blocktime; 2445 waittime = timeout_blocktime;
2101 2446
2102 sleeptime = waittime - backend_fudge; 2447 /* extra check because io_blocktime is commonly 0 */
2103
2104 if (expect_true (sleeptime > io_blocktime)) 2448 if (expect_false (io_blocktime))
2105 sleeptime = io_blocktime;
2106
2107 if (sleeptime)
2108 { 2449 {
2450 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2451
2452 if (sleeptime > waittime - backend_fudge)
2453 sleeptime = waittime - backend_fudge;
2454
2455 if (expect_true (sleeptime > 0.))
2456 {
2109 ev_sleep (sleeptime); 2457 ev_sleep (sleeptime);
2110 waittime -= sleeptime; 2458 waittime -= sleeptime;
2459 }
2111 } 2460 }
2112 } 2461 }
2113 2462
2463#if EV_FEATURE_API
2114 ++loop_count; 2464 ++loop_count;
2465#endif
2466 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2115 backend_poll (EV_A_ waittime); 2467 backend_poll (EV_A_ waittime);
2468 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2116 2469
2117 /* update ev_rt_now, do magic */ 2470 /* update ev_rt_now, do magic */
2118 time_update (EV_A_ waittime + sleeptime); 2471 time_update (EV_A_ waittime + sleeptime);
2119 } 2472 }
2120 2473
… …
2127#if EV_IDLE_ENABLE 2480#if EV_IDLE_ENABLE
2128 /* queue idle watchers unless other events are pending */ 2481 /* queue idle watchers unless other events are pending */
2129 idle_reify (EV_A); 2482 idle_reify (EV_A);
2130#endif 2483#endif
2131 2484
2485#if EV_CHECK_ENABLE
2132 /* queue check watchers, to be executed first */ 2486 /* queue check watchers, to be executed first */
2133 if (expect_false (checkcnt)) 2487 if (expect_false (checkcnt))
2134 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2488 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2489#endif
2135 2490
2136 call_pending (EV_A); 2491 EV_INVOKE_PENDING;
2137 } 2492 }
2138 while (expect_true ( 2493 while (expect_true (
2139 activecnt 2494 activecnt
2140 && !loop_done 2495 && !loop_done
2141 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2496 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2142 )); 2497 ));
2143 2498
2144 if (loop_done == EVUNLOOP_ONE) 2499 if (loop_done == EVBREAK_ONE)
2145 loop_done = EVUNLOOP_CANCEL; 2500 loop_done = EVBREAK_CANCEL;
2146}
2147 2501
2502#if EV_FEATURE_API
2503 --loop_depth;
2504#endif
2505}
2506
2148void 2507void
2149ev_unloop (EV_P_ int how) 2508ev_break (EV_P_ int how)
2150{ 2509{
2151 loop_done = how; 2510 loop_done = how;
2152} 2511}
2153 2512
2154void 2513void
… …
2201inline_size void 2560inline_size void
2202wlist_del (WL *head, WL elem) 2561wlist_del (WL *head, WL elem)
2203{ 2562{
2204 while (*head) 2563 while (*head)
2205 { 2564 {
2206 if (*head == elem) 2565 if (expect_true (*head == elem))
2207 { 2566 {
2208 *head = elem->next; 2567 *head = elem->next;
2209 return; 2568 break;
2210 } 2569 }
2211 2570
2212 head = &(*head)->next; 2571 head = &(*head)->next;
2213 } 2572 }
2214} 2573}
… …
2242} 2601}
2243 2602
2244inline_size void 2603inline_size void
2245pri_adjust (EV_P_ W w) 2604pri_adjust (EV_P_ W w)
2246{ 2605{
2247 int pri = w->priority; 2606 int pri = ev_priority (w);
2248 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2607 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2249 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2608 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2250 w->priority = pri; 2609 ev_set_priority (w, pri);
2251} 2610}
2252 2611
2253inline_speed void 2612inline_speed void
2254ev_start (EV_P_ W w, int active) 2613ev_start (EV_P_ W w, int active)
2255{ 2614{
… …
2274 2633
2275 if (expect_false (ev_is_active (w))) 2634 if (expect_false (ev_is_active (w)))
2276 return; 2635 return;
2277 2636
2278 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2637 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2279 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2638 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2280 2639
2281 EV_FREQUENT_CHECK; 2640 EV_FREQUENT_CHECK;
2282 2641
2283 ev_start (EV_A_ (W)w, 1); 2642 ev_start (EV_A_ (W)w, 1);
2284 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2643 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2285 wlist_add (&anfds[fd].head, (WL)w); 2644 wlist_add (&anfds[fd].head, (WL)w);
2286 2645
2287 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 2646 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2288 w->events &= ~EV__IOFDSET; 2647 w->events &= ~EV__IOFDSET;
2289 2648
2290 EV_FREQUENT_CHECK; 2649 EV_FREQUENT_CHECK;
2291} 2650}
2292 2651
… …
2302 EV_FREQUENT_CHECK; 2661 EV_FREQUENT_CHECK;
2303 2662
2304 wlist_del (&anfds[w->fd].head, (WL)w); 2663 wlist_del (&anfds[w->fd].head, (WL)w);
2305 ev_stop (EV_A_ (W)w); 2664 ev_stop (EV_A_ (W)w);
2306 2665
2307 fd_change (EV_A_ w->fd, 1); 2666 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2308 2667
2309 EV_FREQUENT_CHECK; 2668 EV_FREQUENT_CHECK;
2310} 2669}
2311 2670
2312void noinline 2671void noinline
… …
2354 timers [active] = timers [timercnt + HEAP0]; 2713 timers [active] = timers [timercnt + HEAP0];
2355 adjustheap (timers, timercnt, active); 2714 adjustheap (timers, timercnt, active);
2356 } 2715 }
2357 } 2716 }
2358 2717
2359 EV_FREQUENT_CHECK;
2360
2361 ev_at (w) -= mn_now; 2718 ev_at (w) -= mn_now;
2362 2719
2363 ev_stop (EV_A_ (W)w); 2720 ev_stop (EV_A_ (W)w);
2721
2722 EV_FREQUENT_CHECK;
2364} 2723}
2365 2724
2366void noinline 2725void noinline
2367ev_timer_again (EV_P_ ev_timer *w) 2726ev_timer_again (EV_P_ ev_timer *w)
2368{ 2727{
… …
2386 } 2745 }
2387 2746
2388 EV_FREQUENT_CHECK; 2747 EV_FREQUENT_CHECK;
2389} 2748}
2390 2749
2750ev_tstamp
2751ev_timer_remaining (EV_P_ ev_timer *w)
2752{
2753 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2754}
2755
2391#if EV_PERIODIC_ENABLE 2756#if EV_PERIODIC_ENABLE
2392void noinline 2757void noinline
2393ev_periodic_start (EV_P_ ev_periodic *w) 2758ev_periodic_start (EV_P_ ev_periodic *w)
2394{ 2759{
2395 if (expect_false (ev_is_active (w))) 2760 if (expect_false (ev_is_active (w)))
… …
2441 periodics [active] = periodics [periodiccnt + HEAP0]; 2806 periodics [active] = periodics [periodiccnt + HEAP0];
2442 adjustheap (periodics, periodiccnt, active); 2807 adjustheap (periodics, periodiccnt, active);
2443 } 2808 }
2444 } 2809 }
2445 2810
2446 EV_FREQUENT_CHECK;
2447
2448 ev_stop (EV_A_ (W)w); 2811 ev_stop (EV_A_ (W)w);
2812
2813 EV_FREQUENT_CHECK;
2449} 2814}
2450 2815
2451void noinline 2816void noinline
2452ev_periodic_again (EV_P_ ev_periodic *w) 2817ev_periodic_again (EV_P_ ev_periodic *w)
2453{ 2818{
… …
2459 2824
2460#ifndef SA_RESTART 2825#ifndef SA_RESTART
2461# define SA_RESTART 0 2826# define SA_RESTART 0
2462#endif 2827#endif
2463 2828
2829#if EV_SIGNAL_ENABLE
2830
2464void noinline 2831void noinline
2465ev_signal_start (EV_P_ ev_signal *w) 2832ev_signal_start (EV_P_ ev_signal *w)
2466{ 2833{
2467#if EV_MULTIPLICITY
2468 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2469#endif
2470 if (expect_false (ev_is_active (w))) 2834 if (expect_false (ev_is_active (w)))
2471 return; 2835 return;
2472 2836
2473 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 2837 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2474 2838
2475 evpipe_init (EV_A); 2839#if EV_MULTIPLICITY
2840 assert (("libev: a signal must not be attached to two different loops",
2841 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2476 2842
2477 EV_FREQUENT_CHECK; 2843 signals [w->signum - 1].loop = EV_A;
2844#endif
2478 2845
2846 EV_FREQUENT_CHECK;
2847
2848#if EV_USE_SIGNALFD
2849 if (sigfd == -2)
2479 { 2850 {
2480#ifndef _WIN32 2851 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2481 sigset_t full, prev; 2852 if (sigfd < 0 && errno == EINVAL)
2482 sigfillset (&full); 2853 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2483 sigprocmask (SIG_SETMASK, &full, &prev);
2484#endif
2485 2854
2486 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 2855 if (sigfd >= 0)
2856 {
2857 fd_intern (sigfd); /* doing it twice will not hurt */
2487 2858
2488#ifndef _WIN32 2859 sigemptyset (&sigfd_set);
2489 sigprocmask (SIG_SETMASK, &prev, 0); 2860
2490#endif 2861 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2862 ev_set_priority (&sigfd_w, EV_MAXPRI);
2863 ev_io_start (EV_A_ &sigfd_w);
2864 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2865 }
2491 } 2866 }
2867
2868 if (sigfd >= 0)
2869 {
2870 /* TODO: check .head */
2871 sigaddset (&sigfd_set, w->signum);
2872 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2873
2874 signalfd (sigfd, &sigfd_set, 0);
2875 }
2876#endif
2492 2877
2493 ev_start (EV_A_ (W)w, 1); 2878 ev_start (EV_A_ (W)w, 1);
2494 wlist_add (&signals [w->signum - 1].head, (WL)w); 2879 wlist_add (&signals [w->signum - 1].head, (WL)w);
2495 2880
2496 if (!((WL)w)->next) 2881 if (!((WL)w)->next)
2882# if EV_USE_SIGNALFD
2883 if (sigfd < 0) /*TODO*/
2884# endif
2497 { 2885 {
2498#if _WIN32 2886# ifdef _WIN32
2887 evpipe_init (EV_A);
2888
2499 signal (w->signum, ev_sighandler); 2889 signal (w->signum, ev_sighandler);
2500#else 2890# else
2501 struct sigaction sa; 2891 struct sigaction sa;
2892
2893 evpipe_init (EV_A);
2894
2502 sa.sa_handler = ev_sighandler; 2895 sa.sa_handler = ev_sighandler;
2503 sigfillset (&sa.sa_mask); 2896 sigfillset (&sa.sa_mask);
2504 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2897 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2505 sigaction (w->signum, &sa, 0); 2898 sigaction (w->signum, &sa, 0);
2899
2900 if (origflags & EVFLAG_NOSIGMASK)
2901 {
2902 sigemptyset (&sa.sa_mask);
2903 sigaddset (&sa.sa_mask, w->signum);
2904 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2905 }
2506#endif 2906#endif
2507 } 2907 }
2508 2908
2509 EV_FREQUENT_CHECK; 2909 EV_FREQUENT_CHECK;
2510} 2910}
2511 2911
2512void noinline 2912void noinline
… …
2520 2920
2521 wlist_del (&signals [w->signum - 1].head, (WL)w); 2921 wlist_del (&signals [w->signum - 1].head, (WL)w);
2522 ev_stop (EV_A_ (W)w); 2922 ev_stop (EV_A_ (W)w);
2523 2923
2524 if (!signals [w->signum - 1].head) 2924 if (!signals [w->signum - 1].head)
2925 {
2926#if EV_MULTIPLICITY
2927 signals [w->signum - 1].loop = 0; /* unattach from signal */
2928#endif
2929#if EV_USE_SIGNALFD
2930 if (sigfd >= 0)
2931 {
2932 sigset_t ss;
2933
2934 sigemptyset (&ss);
2935 sigaddset (&ss, w->signum);
2936 sigdelset (&sigfd_set, w->signum);
2937
2938 signalfd (sigfd, &sigfd_set, 0);
2939 sigprocmask (SIG_UNBLOCK, &ss, 0);
2940 }
2941 else
2942#endif
2525 signal (w->signum, SIG_DFL); 2943 signal (w->signum, SIG_DFL);
2944 }
2526 2945
2527 EV_FREQUENT_CHECK; 2946 EV_FREQUENT_CHECK;
2528} 2947}
2948
2949#endif
2950
2951#if EV_CHILD_ENABLE
2529 2952
2530void 2953void
2531ev_child_start (EV_P_ ev_child *w) 2954ev_child_start (EV_P_ ev_child *w)
2532{ 2955{
2533#if EV_MULTIPLICITY 2956#if EV_MULTIPLICITY
… …
2537 return; 2960 return;
2538 2961
2539 EV_FREQUENT_CHECK; 2962 EV_FREQUENT_CHECK;
2540 2963
2541 ev_start (EV_A_ (W)w, 1); 2964 ev_start (EV_A_ (W)w, 1);
2542 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2965 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2543 2966
2544 EV_FREQUENT_CHECK; 2967 EV_FREQUENT_CHECK;
2545} 2968}
2546 2969
2547void 2970void
… …
2551 if (expect_false (!ev_is_active (w))) 2974 if (expect_false (!ev_is_active (w)))
2552 return; 2975 return;
2553 2976
2554 EV_FREQUENT_CHECK; 2977 EV_FREQUENT_CHECK;
2555 2978
2556 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2979 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2557 ev_stop (EV_A_ (W)w); 2980 ev_stop (EV_A_ (W)w);
2558 2981
2559 EV_FREQUENT_CHECK; 2982 EV_FREQUENT_CHECK;
2560} 2983}
2984
2985#endif
2561 2986
2562#if EV_STAT_ENABLE 2987#if EV_STAT_ENABLE
2563 2988
2564# ifdef _WIN32 2989# ifdef _WIN32
2565# undef lstat 2990# undef lstat
… …
2571#define MIN_STAT_INTERVAL 0.1074891 2996#define MIN_STAT_INTERVAL 0.1074891
2572 2997
2573static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2998static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2574 2999
2575#if EV_USE_INOTIFY 3000#if EV_USE_INOTIFY
2576# define EV_INOTIFY_BUFSIZE 8192 3001
3002/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3003# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2577 3004
2578static void noinline 3005static void noinline
2579infy_add (EV_P_ ev_stat *w) 3006infy_add (EV_P_ ev_stat *w)
2580{ 3007{
2581 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); 3008 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);
2582 3009
2583 if (w->wd < 0) 3010 if (w->wd >= 0)
3011 {
3012 struct statfs sfs;
3013
3014 /* now local changes will be tracked by inotify, but remote changes won't */
3015 /* unless the filesystem is known to be local, we therefore still poll */
3016 /* also do poll on <2.6.25, but with normal frequency */
3017
3018 if (!fs_2625)
3019 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3020 else if (!statfs (w->path, &sfs)
3021 && (sfs.f_type == 0x1373 /* devfs */
3022 || sfs.f_type == 0xEF53 /* ext2/3 */
3023 || sfs.f_type == 0x3153464a /* jfs */
3024 || sfs.f_type == 0x52654973 /* reiser3 */
3025 || sfs.f_type == 0x01021994 /* tempfs */
3026 || sfs.f_type == 0x58465342 /* xfs */))
3027 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3028 else
3029 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2584 { 3030 }
3031 else
3032 {
3033 /* can't use inotify, continue to stat */
2585 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3034 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2586 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2587 3035
2588 /* monitor some parent directory for speedup hints */ 3036 /* if path is not there, monitor some parent directory for speedup hints */
2589 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3037 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2590 /* but an efficiency issue only */ 3038 /* but an efficiency issue only */
2591 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3039 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2592 { 3040 {
2593 char path [4096]; 3041 char path [4096];
… …
2609 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3057 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2610 } 3058 }
2611 } 3059 }
2612 3060
2613 if (w->wd >= 0) 3061 if (w->wd >= 0)
2614 {
2615 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3062 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2616 3063
2617 /* now local changes will be tracked by inotify, but remote changes won't */ 3064 /* now re-arm timer, if required */
2618 /* unless the filesystem it known to be local, we therefore still poll */ 3065 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2619 /* also do poll on <2.6.25, but with normal frequency */
2620 struct statfs sfs;
2621
2622 if (fs_2625 && !statfs (w->path, &sfs))
2623 if (sfs.f_type == 0x1373 /* devfs */
2624 || sfs.f_type == 0xEF53 /* ext2/3 */
2625 || sfs.f_type == 0x3153464a /* jfs */
2626 || sfs.f_type == 0x52654973 /* reiser3 */
2627 || sfs.f_type == 0x01021994 /* tempfs */
2628 || sfs.f_type == 0x58465342 /* xfs */)
2629 return;
2630
2631 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2632 ev_timer_again (EV_A_ &w->timer); 3066 ev_timer_again (EV_A_ &w->timer);
2633 } 3067 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2634} 3068}
2635 3069
2636static void noinline 3070static void noinline
2637infy_del (EV_P_ ev_stat *w) 3071infy_del (EV_P_ ev_stat *w)
2638{ 3072{
… …
2641 3075
2642 if (wd < 0) 3076 if (wd < 0)
2643 return; 3077 return;
2644 3078
2645 w->wd = -2; 3079 w->wd = -2;
2646 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3080 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2647 wlist_del (&fs_hash [slot].head, (WL)w); 3081 wlist_del (&fs_hash [slot].head, (WL)w);
2648 3082
2649 /* remove this watcher, if others are watching it, they will rearm */ 3083 /* remove this watcher, if others are watching it, they will rearm */
2650 inotify_rm_watch (fs_fd, wd); 3084 inotify_rm_watch (fs_fd, wd);
2651} 3085}
… …
2653static void noinline 3087static void noinline
2654infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3088infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2655{ 3089{
2656 if (slot < 0) 3090 if (slot < 0)
2657 /* overflow, need to check for all hash slots */ 3091 /* overflow, need to check for all hash slots */
2658 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3092 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2659 infy_wd (EV_A_ slot, wd, ev); 3093 infy_wd (EV_A_ slot, wd, ev);
2660 else 3094 else
2661 { 3095 {
2662 WL w_; 3096 WL w_;
2663 3097
2664 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3098 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2665 { 3099 {
2666 ev_stat *w = (ev_stat *)w_; 3100 ev_stat *w = (ev_stat *)w_;
2667 w_ = w_->next; /* lets us remove this watcher and all before it */ 3101 w_ = w_->next; /* lets us remove this watcher and all before it */
2668 3102
2669 if (w->wd == wd || wd == -1) 3103 if (w->wd == wd || wd == -1)
2670 { 3104 {
2671 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3105 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2672 { 3106 {
2673 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3107 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2674 w->wd = -1; 3108 w->wd = -1;
2675 infy_add (EV_A_ w); /* re-add, no matter what */ 3109 infy_add (EV_A_ w); /* re-add, no matter what */
2676 } 3110 }
2677 3111
2678 stat_timer_cb (EV_A_ &w->timer, 0); 3112 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2683 3117
2684static void 3118static void
2685infy_cb (EV_P_ ev_io *w, int revents) 3119infy_cb (EV_P_ ev_io *w, int revents)
2686{ 3120{
2687 char buf [EV_INOTIFY_BUFSIZE]; 3121 char buf [EV_INOTIFY_BUFSIZE];
2688 struct inotify_event *ev = (struct inotify_event *)buf;
2689 int ofs; 3122 int ofs;
2690 int len = read (fs_fd, buf, sizeof (buf)); 3123 int len = read (fs_fd, buf, sizeof (buf));
2691 3124
2692 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3125 for (ofs = 0; ofs < len; )
3126 {
3127 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2693 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3128 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3129 ofs += sizeof (struct inotify_event) + ev->len;
3130 }
2694} 3131}
2695 3132
2696inline_size void 3133inline_size void
2697check_2625 (EV_P) 3134ev_check_2625 (EV_P)
2698{ 3135{
2699 /* kernels < 2.6.25 are borked 3136 /* kernels < 2.6.25 are borked
2700 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3137 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2701 */ 3138 */
2702 struct utsname buf; 3139 if (ev_linux_version () < 0x020619)
2703 int major, minor, micro;
2704
2705 if (uname (&buf))
2706 return; 3140 return;
2707 3141
2708 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2709 return;
2710
2711 if (major < 2
2712 || (major == 2 && minor < 6)
2713 || (major == 2 && minor == 6 && micro < 25))
2714 return;
2715
2716 fs_2625 = 1; 3142 fs_2625 = 1;
3143}
3144
3145inline_size int
3146infy_newfd (void)
3147{
3148#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3149 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3150 if (fd >= 0)
3151 return fd;
3152#endif
3153 return inotify_init ();
2717} 3154}
2718 3155
2719inline_size void 3156inline_size void
2720infy_init (EV_P) 3157infy_init (EV_P)
2721{ 3158{
2722 if (fs_fd != -2) 3159 if (fs_fd != -2)
2723 return; 3160 return;
2724 3161
2725 fs_fd = -1; 3162 fs_fd = -1;
2726 3163
2727 check_2625 (EV_A); 3164 ev_check_2625 (EV_A);
2728 3165
2729 fs_fd = inotify_init (); 3166 fs_fd = infy_newfd ();
2730 3167
2731 if (fs_fd >= 0) 3168 if (fs_fd >= 0)
2732 { 3169 {
3170 fd_intern (fs_fd);
2733 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3171 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2734 ev_set_priority (&fs_w, EV_MAXPRI); 3172 ev_set_priority (&fs_w, EV_MAXPRI);
2735 ev_io_start (EV_A_ &fs_w); 3173 ev_io_start (EV_A_ &fs_w);
3174 ev_unref (EV_A);
2736 } 3175 }
2737} 3176}
2738 3177
2739inline_size void 3178inline_size void
2740infy_fork (EV_P) 3179infy_fork (EV_P)
… …
2742 int slot; 3181 int slot;
2743 3182
2744 if (fs_fd < 0) 3183 if (fs_fd < 0)
2745 return; 3184 return;
2746 3185
3186 ev_ref (EV_A);
3187 ev_io_stop (EV_A_ &fs_w);
2747 close (fs_fd); 3188 close (fs_fd);
2748 fs_fd = inotify_init (); 3189 fs_fd = infy_newfd ();
2749 3190
3191 if (fs_fd >= 0)
3192 {
3193 fd_intern (fs_fd);
3194 ev_io_set (&fs_w, fs_fd, EV_READ);
3195 ev_io_start (EV_A_ &fs_w);
3196 ev_unref (EV_A);
3197 }
3198
2750 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3199 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2751 { 3200 {
2752 WL w_ = fs_hash [slot].head; 3201 WL w_ = fs_hash [slot].head;
2753 fs_hash [slot].head = 0; 3202 fs_hash [slot].head = 0;
2754 3203
2755 while (w_) 3204 while (w_)
… …
2760 w->wd = -1; 3209 w->wd = -1;
2761 3210
2762 if (fs_fd >= 0) 3211 if (fs_fd >= 0)
2763 infy_add (EV_A_ w); /* re-add, no matter what */ 3212 infy_add (EV_A_ w); /* re-add, no matter what */
2764 else 3213 else
3214 {
3215 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3216 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2765 ev_timer_again (EV_A_ &w->timer); 3217 ev_timer_again (EV_A_ &w->timer);
3218 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3219 }
2766 } 3220 }
2767 } 3221 }
2768} 3222}
2769 3223
2770#endif 3224#endif
… …
2787static void noinline 3241static void noinline
2788stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3242stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2789{ 3243{
2790 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3244 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2791 3245
2792 /* we copy this here each the time so that */ 3246 ev_statdata prev = w->attr;
2793 /* prev has the old value when the callback gets invoked */
2794 w->prev = w->attr;
2795 ev_stat_stat (EV_A_ w); 3247 ev_stat_stat (EV_A_ w);
2796 3248
2797 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3249 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2798 if ( 3250 if (
2799 w->prev.st_dev != w->attr.st_dev 3251 prev.st_dev != w->attr.st_dev
2800 || w->prev.st_ino != w->attr.st_ino 3252 || prev.st_ino != w->attr.st_ino
2801 || w->prev.st_mode != w->attr.st_mode 3253 || prev.st_mode != w->attr.st_mode
2802 || w->prev.st_nlink != w->attr.st_nlink 3254 || prev.st_nlink != w->attr.st_nlink
2803 || w->prev.st_uid != w->attr.st_uid 3255 || prev.st_uid != w->attr.st_uid
2804 || w->prev.st_gid != w->attr.st_gid 3256 || prev.st_gid != w->attr.st_gid
2805 || w->prev.st_rdev != w->attr.st_rdev 3257 || prev.st_rdev != w->attr.st_rdev
2806 || w->prev.st_size != w->attr.st_size 3258 || prev.st_size != w->attr.st_size
2807 || w->prev.st_atime != w->attr.st_atime 3259 || prev.st_atime != w->attr.st_atime
2808 || w->prev.st_mtime != w->attr.st_mtime 3260 || prev.st_mtime != w->attr.st_mtime
2809 || w->prev.st_ctime != w->attr.st_ctime 3261 || prev.st_ctime != w->attr.st_ctime
2810 ) { 3262 ) {
3263 /* we only update w->prev on actual differences */
3264 /* in case we test more often than invoke the callback, */
3265 /* to ensure that prev is always different to attr */
3266 w->prev = prev;
3267
2811 #if EV_USE_INOTIFY 3268 #if EV_USE_INOTIFY
2812 if (fs_fd >= 0) 3269 if (fs_fd >= 0)
2813 { 3270 {
2814 infy_del (EV_A_ w); 3271 infy_del (EV_A_ w);
2815 infy_add (EV_A_ w); 3272 infy_add (EV_A_ w);
… …
2840 3297
2841 if (fs_fd >= 0) 3298 if (fs_fd >= 0)
2842 infy_add (EV_A_ w); 3299 infy_add (EV_A_ w);
2843 else 3300 else
2844#endif 3301#endif
3302 {
2845 ev_timer_again (EV_A_ &w->timer); 3303 ev_timer_again (EV_A_ &w->timer);
3304 ev_unref (EV_A);
3305 }
2846 3306
2847 ev_start (EV_A_ (W)w, 1); 3307 ev_start (EV_A_ (W)w, 1);
2848 3308
2849 EV_FREQUENT_CHECK; 3309 EV_FREQUENT_CHECK;
2850} 3310}
… …
2859 EV_FREQUENT_CHECK; 3319 EV_FREQUENT_CHECK;
2860 3320
2861#if EV_USE_INOTIFY 3321#if EV_USE_INOTIFY
2862 infy_del (EV_A_ w); 3322 infy_del (EV_A_ w);
2863#endif 3323#endif
3324
3325 if (ev_is_active (&w->timer))
3326 {
3327 ev_ref (EV_A);
2864 ev_timer_stop (EV_A_ &w->timer); 3328 ev_timer_stop (EV_A_ &w->timer);
3329 }
2865 3330
2866 ev_stop (EV_A_ (W)w); 3331 ev_stop (EV_A_ (W)w);
2867 3332
2868 EV_FREQUENT_CHECK; 3333 EV_FREQUENT_CHECK;
2869} 3334}
… …
2914 3379
2915 EV_FREQUENT_CHECK; 3380 EV_FREQUENT_CHECK;
2916} 3381}
2917#endif 3382#endif
2918 3383
3384#if EV_PREPARE_ENABLE
2919void 3385void
2920ev_prepare_start (EV_P_ ev_prepare *w) 3386ev_prepare_start (EV_P_ ev_prepare *w)
2921{ 3387{
2922 if (expect_false (ev_is_active (w))) 3388 if (expect_false (ev_is_active (w)))
2923 return; 3389 return;
… …
2949 3415
2950 ev_stop (EV_A_ (W)w); 3416 ev_stop (EV_A_ (W)w);
2951 3417
2952 EV_FREQUENT_CHECK; 3418 EV_FREQUENT_CHECK;
2953} 3419}
3420#endif
2954 3421
3422#if EV_CHECK_ENABLE
2955void 3423void
2956ev_check_start (EV_P_ ev_check *w) 3424ev_check_start (EV_P_ ev_check *w)
2957{ 3425{
2958 if (expect_false (ev_is_active (w))) 3426 if (expect_false (ev_is_active (w)))
2959 return; 3427 return;
… …
2985 3453
2986 ev_stop (EV_A_ (W)w); 3454 ev_stop (EV_A_ (W)w);
2987 3455
2988 EV_FREQUENT_CHECK; 3456 EV_FREQUENT_CHECK;
2989} 3457}
3458#endif
2990 3459
2991#if EV_EMBED_ENABLE 3460#if EV_EMBED_ENABLE
2992void noinline 3461void noinline
2993ev_embed_sweep (EV_P_ ev_embed *w) 3462ev_embed_sweep (EV_P_ ev_embed *w)
2994{ 3463{
2995 ev_loop (w->other, EVLOOP_NONBLOCK); 3464 ev_run (w->other, EVRUN_NOWAIT);
2996} 3465}
2997 3466
2998static void 3467static void
2999embed_io_cb (EV_P_ ev_io *io, int revents) 3468embed_io_cb (EV_P_ ev_io *io, int revents)
3000{ 3469{
3001 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3470 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3002 3471
3003 if (ev_cb (w)) 3472 if (ev_cb (w))
3004 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3473 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3005 else 3474 else
3006 ev_loop (w->other, EVLOOP_NONBLOCK); 3475 ev_run (w->other, EVRUN_NOWAIT);
3007} 3476}
3008 3477
3009static void 3478static void
3010embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3479embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3011{ 3480{
3012 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3481 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3013 3482
3014 { 3483 {
3015 struct ev_loop *loop = w->other; 3484 EV_P = w->other;
3016 3485
3017 while (fdchangecnt) 3486 while (fdchangecnt)
3018 { 3487 {
3019 fd_reify (EV_A); 3488 fd_reify (EV_A);
3020 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3489 ev_run (EV_A_ EVRUN_NOWAIT);
3021 } 3490 }
3022 } 3491 }
3023} 3492}
3024 3493
3025static void 3494static void
… …
3028 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3497 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3029 3498
3030 ev_embed_stop (EV_A_ w); 3499 ev_embed_stop (EV_A_ w);
3031 3500
3032 { 3501 {
3033 struct ev_loop *loop = w->other; 3502 EV_P = w->other;
3034 3503
3035 ev_loop_fork (EV_A); 3504 ev_loop_fork (EV_A);
3036 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3505 ev_run (EV_A_ EVRUN_NOWAIT);
3037 } 3506 }
3038 3507
3039 ev_embed_start (EV_A_ w); 3508 ev_embed_start (EV_A_ w);
3040} 3509}
3041 3510
… …
3052{ 3521{
3053 if (expect_false (ev_is_active (w))) 3522 if (expect_false (ev_is_active (w)))
3054 return; 3523 return;
3055 3524
3056 { 3525 {
3057 struct ev_loop *loop = w->other; 3526 EV_P = w->other;
3058 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3527 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3059 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3528 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3060 } 3529 }
3061 3530
3062 EV_FREQUENT_CHECK; 3531 EV_FREQUENT_CHECK;
… …
3089 3558
3090 ev_io_stop (EV_A_ &w->io); 3559 ev_io_stop (EV_A_ &w->io);
3091 ev_prepare_stop (EV_A_ &w->prepare); 3560 ev_prepare_stop (EV_A_ &w->prepare);
3092 ev_fork_stop (EV_A_ &w->fork); 3561 ev_fork_stop (EV_A_ &w->fork);
3093 3562
3563 ev_stop (EV_A_ (W)w);
3564
3094 EV_FREQUENT_CHECK; 3565 EV_FREQUENT_CHECK;
3095} 3566}
3096#endif 3567#endif
3097 3568
3098#if EV_FORK_ENABLE 3569#if EV_FORK_ENABLE
… …
3131 3602
3132 EV_FREQUENT_CHECK; 3603 EV_FREQUENT_CHECK;
3133} 3604}
3134#endif 3605#endif
3135 3606
3136#if EV_ASYNC_ENABLE 3607#if EV_CLEANUP_ENABLE
3137void 3608void
3138ev_async_start (EV_P_ ev_async *w) 3609ev_cleanup_start (EV_P_ ev_cleanup *w)
3139{ 3610{
3140 if (expect_false (ev_is_active (w))) 3611 if (expect_false (ev_is_active (w)))
3141 return; 3612 return;
3613
3614 EV_FREQUENT_CHECK;
3615
3616 ev_start (EV_A_ (W)w, ++cleanupcnt);
3617 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3618 cleanups [cleanupcnt - 1] = w;
3619
3620 /* cleanup watchers should never keep a refcount on the loop */
3621 ev_unref (EV_A);
3622 EV_FREQUENT_CHECK;
3623}
3624
3625void
3626ev_cleanup_stop (EV_P_ ev_cleanup *w)
3627{
3628 clear_pending (EV_A_ (W)w);
3629 if (expect_false (!ev_is_active (w)))
3630 return;
3631
3632 EV_FREQUENT_CHECK;
3633 ev_ref (EV_A);
3634
3635 {
3636 int active = ev_active (w);
3637
3638 cleanups [active - 1] = cleanups [--cleanupcnt];
3639 ev_active (cleanups [active - 1]) = active;
3640 }
3641
3642 ev_stop (EV_A_ (W)w);
3643
3644 EV_FREQUENT_CHECK;
3645}
3646#endif
3647
3648#if EV_ASYNC_ENABLE
3649void
3650ev_async_start (EV_P_ ev_async *w)
3651{
3652 if (expect_false (ev_is_active (w)))
3653 return;
3654
3655 w->sent = 0;
3142 3656
3143 evpipe_init (EV_A); 3657 evpipe_init (EV_A);
3144 3658
3145 EV_FREQUENT_CHECK; 3659 EV_FREQUENT_CHECK;
3146 3660
… …
3174 3688
3175void 3689void
3176ev_async_send (EV_P_ ev_async *w) 3690ev_async_send (EV_P_ ev_async *w)
3177{ 3691{
3178 w->sent = 1; 3692 w->sent = 1;
3179 evpipe_write (EV_A_ &gotasync); 3693 evpipe_write (EV_A_ &async_pending);
3180} 3694}
3181#endif 3695#endif
3182 3696
3183/*****************************************************************************/ 3697/*****************************************************************************/
3184 3698
… …
3224{ 3738{
3225 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3739 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3226 3740
3227 if (expect_false (!once)) 3741 if (expect_false (!once))
3228 { 3742 {
3229 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3743 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3230 return; 3744 return;
3231 } 3745 }
3232 3746
3233 once->cb = cb; 3747 once->cb = cb;
3234 once->arg = arg; 3748 once->arg = arg;
… …
3321 if (types & EV_ASYNC) 3835 if (types & EV_ASYNC)
3322 for (i = asynccnt; i--; ) 3836 for (i = asynccnt; i--; )
3323 cb (EV_A_ EV_ASYNC, asyncs [i]); 3837 cb (EV_A_ EV_ASYNC, asyncs [i]);
3324#endif 3838#endif
3325 3839
3840#if EV_PREPARE_ENABLE
3326 if (types & EV_PREPARE) 3841 if (types & EV_PREPARE)
3327 for (i = preparecnt; i--; ) 3842 for (i = preparecnt; i--; )
3328#if EV_EMBED_ENABLE 3843# if EV_EMBED_ENABLE
3329 if (ev_cb (prepares [i]) != embed_prepare_cb) 3844 if (ev_cb (prepares [i]) != embed_prepare_cb)
3330#endif 3845# endif
3331 cb (EV_A_ EV_PREPARE, prepares [i]); 3846 cb (EV_A_ EV_PREPARE, prepares [i]);
3847#endif
3332 3848
3849#if EV_CHECK_ENABLE
3333 if (types & EV_CHECK) 3850 if (types & EV_CHECK)
3334 for (i = checkcnt; i--; ) 3851 for (i = checkcnt; i--; )
3335 cb (EV_A_ EV_CHECK, checks [i]); 3852 cb (EV_A_ EV_CHECK, checks [i]);
3853#endif
3336 3854
3855#if EV_SIGNAL_ENABLE
3337 if (types & EV_SIGNAL) 3856 if (types & EV_SIGNAL)
3338 for (i = 0; i < signalmax; ++i) 3857 for (i = 0; i < EV_NSIG - 1; ++i)
3339 for (wl = signals [i].head; wl; ) 3858 for (wl = signals [i].head; wl; )
3340 { 3859 {
3341 wn = wl->next; 3860 wn = wl->next;
3342 cb (EV_A_ EV_SIGNAL, wl); 3861 cb (EV_A_ EV_SIGNAL, wl);
3343 wl = wn; 3862 wl = wn;
3344 } 3863 }
3864#endif
3345 3865
3866#if EV_CHILD_ENABLE
3346 if (types & EV_CHILD) 3867 if (types & EV_CHILD)
3347 for (i = EV_PID_HASHSIZE; i--; ) 3868 for (i = (EV_PID_HASHSIZE); i--; )
3348 for (wl = childs [i]; wl; ) 3869 for (wl = childs [i]; wl; )
3349 { 3870 {
3350 wn = wl->next; 3871 wn = wl->next;
3351 cb (EV_A_ EV_CHILD, wl); 3872 cb (EV_A_ EV_CHILD, wl);
3352 wl = wn; 3873 wl = wn;
3353 } 3874 }
3875#endif
3354/* EV_STAT 0x00001000 /* stat data changed */ 3876/* EV_STAT 0x00001000 /* stat data changed */
3355/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3877/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3356} 3878}
3357#endif 3879#endif
3358 3880
3359#if EV_MULTIPLICITY 3881#if EV_MULTIPLICITY
3360 #include "ev_wrap.h" 3882 #include "ev_wrap.h"
3361#endif 3883#endif
3362 3884
3363#ifdef __cplusplus 3885EV_CPP(})
3364}
3365#endif
3366 3886

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