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Comparing libev/ev.c (file contents):
Revision 1.328 by root, Sun Feb 14 19:23:19 2010 UTC vs.
Revision 1.377 by root, Wed Jun 8 13:11:55 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 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 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
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
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# include "ev.h" 185# include "ev.h"
176#endif 186#endif
187
188EV_CPP(extern "C" {)
177 189
178#ifndef _WIN32 190#ifndef _WIN32
179# include <sys/time.h> 191# include <sys/time.h>
180# include <sys/wait.h> 192# include <sys/wait.h>
181# include <unistd.h> 193# include <unistd.h>
… …
184# define WIN32_LEAN_AND_MEAN 196# define WIN32_LEAN_AND_MEAN
185# include <windows.h> 197# include <windows.h>
186# ifndef EV_SELECT_IS_WINSOCKET 198# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 199# define EV_SELECT_IS_WINSOCKET 1
188# endif 200# endif
201# undef EV_AVOID_STDIO
189#endif 202#endif
203
204/* OS X, in its infinite idiocy, actually HARDCODES
205 * a limit of 1024 into their select. Where people have brains,
206 * OS X engineers apparently have a vacuum. Or maybe they were
207 * ordered to have a vacuum, or they do anything for money.
208 * This might help. Or not.
209 */
210#define _DARWIN_UNLIMITED_SELECT 1
190 211
191/* this block tries to deduce configuration from header-defined symbols and defaults */ 212/* this block tries to deduce configuration from header-defined symbols and defaults */
192 213
193/* try to deduce the maximum number of signals on this platform */ 214/* try to deduce the maximum number of signals on this platform */
194#if defined (EV_NSIG) 215#if defined (EV_NSIG)
… …
206#elif defined (MAXSIG) 227#elif defined (MAXSIG)
207# define EV_NSIG (MAXSIG+1) 228# define EV_NSIG (MAXSIG+1)
208#elif defined (MAX_SIG) 229#elif defined (MAX_SIG)
209# define EV_NSIG (MAX_SIG+1) 230# define EV_NSIG (MAX_SIG+1)
210#elif defined (SIGARRAYSIZE) 231#elif defined (SIGARRAYSIZE)
211# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
212#elif defined (_sys_nsig) 233#elif defined (_sys_nsig)
213# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
214#else 235#else
215# error "unable to find value for NSIG, please report" 236# error "unable to find value for NSIG, please report"
216/* to make it compile regardless, just remove the above line */ 237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
217# define EV_NSIG 65 239# define EV_NSIG 65
240#endif
241
242#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0
218#endif 244#endif
219 245
220#ifndef EV_USE_CLOCK_SYSCALL 246#ifndef EV_USE_CLOCK_SYSCALL
221# if __linux && __GLIBC__ >= 2 247# if __linux && __GLIBC__ >= 2
222# define EV_USE_CLOCK_SYSCALL 1 248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
223# else 249# else
224# define EV_USE_CLOCK_SYSCALL 0 250# define EV_USE_CLOCK_SYSCALL 0
225# endif 251# endif
226#endif 252#endif
227 253
228#ifndef EV_USE_MONOTONIC 254#ifndef EV_USE_MONOTONIC
229# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
230# define EV_USE_MONOTONIC 1 256# define EV_USE_MONOTONIC EV_FEATURE_OS
231# else 257# else
232# define EV_USE_MONOTONIC 0 258# define EV_USE_MONOTONIC 0
233# endif 259# endif
234#endif 260#endif
235 261
… …
237# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 263# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
238#endif 264#endif
239 265
240#ifndef EV_USE_NANOSLEEP 266#ifndef EV_USE_NANOSLEEP
241# if _POSIX_C_SOURCE >= 199309L 267# if _POSIX_C_SOURCE >= 199309L
242# define EV_USE_NANOSLEEP 1 268# define EV_USE_NANOSLEEP EV_FEATURE_OS
243# else 269# else
244# define EV_USE_NANOSLEEP 0 270# define EV_USE_NANOSLEEP 0
245# endif 271# endif
246#endif 272#endif
247 273
248#ifndef EV_USE_SELECT 274#ifndef EV_USE_SELECT
249# define EV_USE_SELECT 1 275# define EV_USE_SELECT EV_FEATURE_BACKENDS
250#endif 276#endif
251 277
252#ifndef EV_USE_POLL 278#ifndef EV_USE_POLL
253# ifdef _WIN32 279# ifdef _WIN32
254# define EV_USE_POLL 0 280# define EV_USE_POLL 0
255# else 281# else
256# define EV_USE_POLL 1 282# define EV_USE_POLL EV_FEATURE_BACKENDS
257# endif 283# endif
258#endif 284#endif
259 285
260#ifndef EV_USE_EPOLL 286#ifndef EV_USE_EPOLL
261# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 287# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
262# define EV_USE_EPOLL 1 288# define EV_USE_EPOLL EV_FEATURE_BACKENDS
263# else 289# else
264# define EV_USE_EPOLL 0 290# define EV_USE_EPOLL 0
265# endif 291# endif
266#endif 292#endif
267 293
… …
273# define EV_USE_PORT 0 299# define EV_USE_PORT 0
274#endif 300#endif
275 301
276#ifndef EV_USE_INOTIFY 302#ifndef EV_USE_INOTIFY
277# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
278# define EV_USE_INOTIFY 1 304# define EV_USE_INOTIFY EV_FEATURE_OS
279# else 305# else
280# define EV_USE_INOTIFY 0 306# define EV_USE_INOTIFY 0
281# endif 307# endif
282#endif 308#endif
283 309
284#ifndef EV_PID_HASHSIZE 310#ifndef EV_PID_HASHSIZE
285# if EV_MINIMAL 311# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
286# define EV_PID_HASHSIZE 1
287# else
288# define EV_PID_HASHSIZE 16
289# endif
290#endif 312#endif
291 313
292#ifndef EV_INOTIFY_HASHSIZE 314#ifndef EV_INOTIFY_HASHSIZE
293# if EV_MINIMAL 315# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
294# define EV_INOTIFY_HASHSIZE 1
295# else
296# define EV_INOTIFY_HASHSIZE 16
297# endif
298#endif 316#endif
299 317
300#ifndef EV_USE_EVENTFD 318#ifndef EV_USE_EVENTFD
301# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
302# define EV_USE_EVENTFD 1 320# define EV_USE_EVENTFD EV_FEATURE_OS
303# else 321# else
304# define EV_USE_EVENTFD 0 322# define EV_USE_EVENTFD 0
305# endif 323# endif
306#endif 324#endif
307 325
308#ifndef EV_USE_SIGNALFD 326#ifndef EV_USE_SIGNALFD
309# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 327# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
310# define EV_USE_SIGNALFD 1 328# define EV_USE_SIGNALFD EV_FEATURE_OS
311# else 329# else
312# define EV_USE_SIGNALFD 0 330# define EV_USE_SIGNALFD 0
313# endif 331# endif
314#endif 332#endif
315 333
… …
318# define EV_USE_4HEAP 1 336# define EV_USE_4HEAP 1
319# define EV_HEAP_CACHE_AT 1 337# define EV_HEAP_CACHE_AT 1
320#endif 338#endif
321 339
322#ifndef EV_VERIFY 340#ifndef EV_VERIFY
323# define EV_VERIFY !EV_MINIMAL 341# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
324#endif 342#endif
325 343
326#ifndef EV_USE_4HEAP 344#ifndef EV_USE_4HEAP
327# define EV_USE_4HEAP !EV_MINIMAL 345# define EV_USE_4HEAP EV_FEATURE_DATA
328#endif 346#endif
329 347
330#ifndef EV_HEAP_CACHE_AT 348#ifndef EV_HEAP_CACHE_AT
331# define EV_HEAP_CACHE_AT !EV_MINIMAL 349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
332#endif 350#endif
333 351
334/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
335/* which makes programs even slower. might work on other unices, too. */ 353/* which makes programs even slower. might work on other unices, too. */
336#if EV_USE_CLOCK_SYSCALL 354#if EV_USE_CLOCK_SYSCALL
… …
367# undef EV_USE_INOTIFY 385# undef EV_USE_INOTIFY
368# define EV_USE_INOTIFY 0 386# define EV_USE_INOTIFY 0
369#endif 387#endif
370 388
371#if !EV_USE_NANOSLEEP 389#if !EV_USE_NANOSLEEP
372# ifndef _WIN32 390/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux)
373# include <sys/select.h> 392# include <sys/select.h>
374# endif 393# endif
375#endif 394#endif
376 395
377#if EV_USE_INOTIFY 396#if EV_USE_INOTIFY
378# include <sys/utsname.h>
379# include <sys/statfs.h> 397# include <sys/statfs.h>
380# include <sys/inotify.h> 398# include <sys/inotify.h>
381/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
382# ifndef IN_DONT_FOLLOW 400# ifndef IN_DONT_FOLLOW
383# undef EV_USE_INOTIFY 401# undef EV_USE_INOTIFY
… …
400# define EFD_CLOEXEC O_CLOEXEC 418# define EFD_CLOEXEC O_CLOEXEC
401# else 419# else
402# define EFD_CLOEXEC 02000000 420# define EFD_CLOEXEC 02000000
403# endif 421# endif
404# endif 422# endif
405# ifdef __cplusplus
406extern "C" {
407# endif
408int eventfd (unsigned int initval, int flags); 423EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
409# ifdef __cplusplus
410}
411# endif
412#endif 424#endif
413 425
414#if EV_USE_SIGNALFD 426#if EV_USE_SIGNALFD
415/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
416# include <stdint.h> 428# include <stdint.h>
… …
422# define SFD_CLOEXEC O_CLOEXEC 434# define SFD_CLOEXEC O_CLOEXEC
423# else 435# else
424# define SFD_CLOEXEC 02000000 436# define SFD_CLOEXEC 02000000
425# endif 437# endif
426# endif 438# endif
427# ifdef __cplusplus
428extern "C" {
429# endif
430int signalfd (int fd, const sigset_t *mask, int flags); 439EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
431 440
432struct signalfd_siginfo 441struct signalfd_siginfo
433{ 442{
434 uint32_t ssi_signo; 443 uint32_t ssi_signo;
435 char pad[128 - sizeof (uint32_t)]; 444 char pad[128 - sizeof (uint32_t)];
436}; 445};
437# ifdef __cplusplus
438}
439# endif 446#endif
440#endif
441
442 447
443/**/ 448/**/
444 449
445#if EV_VERIFY >= 3 450#if EV_VERIFY >= 3
446# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 451# define EV_FREQUENT_CHECK ev_verify (EV_A)
447#else 452#else
448# define EV_FREQUENT_CHECK do { } while (0) 453# define EV_FREQUENT_CHECK do { } while (0)
449#endif 454#endif
450 455
451/* 456/*
452 * This is used to avoid floating point rounding problems. 457 * This is used to work around floating point rounding problems.
453 * It is added to ev_rt_now when scheduling periodics
454 * to ensure progress, time-wise, even when rounding
455 * errors are against us.
456 * This value is good at least till the year 4000. 458 * This value is good at least till the year 4000.
457 * Better solutions welcome.
458 */ 459 */
459#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 460#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
461/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
460 462
461#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 463#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
462#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
463 468
464#if __GNUC__ >= 4 469#if __GNUC__ >= 4
465# define expect(expr,value) __builtin_expect ((expr),(value)) 470# define expect(expr,value) __builtin_expect ((expr),(value))
466# define noinline __attribute__ ((noinline)) 471# define noinline __attribute__ ((noinline))
467#else 472#else
… …
474 479
475#define expect_false(expr) expect ((expr) != 0, 0) 480#define expect_false(expr) expect ((expr) != 0, 0)
476#define expect_true(expr) expect ((expr) != 0, 1) 481#define expect_true(expr) expect ((expr) != 0, 1)
477#define inline_size static inline 482#define inline_size static inline
478 483
479#if EV_MINIMAL 484#if EV_FEATURE_CODE
485# define inline_speed static inline
486#else
480# define inline_speed static noinline 487# define inline_speed static noinline
481#else
482# define inline_speed static inline
483#endif 488#endif
484 489
485#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 490#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
486 491
487#if EV_MINPRI == EV_MAXPRI 492#if EV_MINPRI == EV_MAXPRI
… …
500#define ev_active(w) ((W)(w))->active 505#define ev_active(w) ((W)(w))->active
501#define ev_at(w) ((WT)(w))->at 506#define ev_at(w) ((WT)(w))->at
502 507
503#if EV_USE_REALTIME 508#if EV_USE_REALTIME
504/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 509/* sig_atomic_t is used to avoid per-thread variables or locking but still */
505/* giving it a reasonably high chance of working on typical architetcures */ 510/* giving it a reasonably high chance of working on typical architectures */
506static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 511static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
507#endif 512#endif
508 513
509#if EV_USE_MONOTONIC 514#if EV_USE_MONOTONIC
510static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 515static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
523#ifdef _WIN32 528#ifdef _WIN32
524# include "ev_win32.c" 529# include "ev_win32.c"
525#endif 530#endif
526 531
527/*****************************************************************************/ 532/*****************************************************************************/
533
534/* define a suitable floor function (only used by periodics atm) */
535
536#if EV_USE_FLOOR
537# include <math.h>
538# define ev_floor(v) floor (v)
539#else
540
541#include <float.h>
542
543/* a floor() replacement function, should be independent of ev_tstamp type */
544static ev_tstamp noinline
545ev_floor (ev_tstamp v)
546{
547 /* the choice of shift factor is not terribly important */
548#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
549 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
550#else
551 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
552#endif
553
554 /* argument too large for an unsigned long? */
555 if (expect_false (v >= shift))
556 {
557 ev_tstamp f;
558
559 if (v == v - 1.)
560 return v; /* very large number */
561
562 f = shift * ev_floor (v * (1. / shift));
563 return f + ev_floor (v - f);
564 }
565
566 /* special treatment for negative args? */
567 if (expect_false (v < 0.))
568 {
569 ev_tstamp f = -ev_floor (-v);
570
571 return f - (f == v ? 0 : 1);
572 }
573
574 /* fits into an unsigned long */
575 return (unsigned long)v;
576}
577
578#endif
579
580/*****************************************************************************/
581
582#ifdef __linux
583# include <sys/utsname.h>
584#endif
585
586static unsigned int noinline
587ev_linux_version (void)
588{
589#ifdef __linux
590 unsigned int v = 0;
591 struct utsname buf;
592 int i;
593 char *p = buf.release;
594
595 if (uname (&buf))
596 return 0;
597
598 for (i = 3+1; --i; )
599 {
600 unsigned int c = 0;
601
602 for (;;)
603 {
604 if (*p >= '0' && *p <= '9')
605 c = c * 10 + *p++ - '0';
606 else
607 {
608 p += *p == '.';
609 break;
610 }
611 }
612
613 v = (v << 8) | c;
614 }
615
616 return v;
617#else
618 return 0;
619#endif
620}
621
622/*****************************************************************************/
623
624#if EV_AVOID_STDIO
625static void noinline
626ev_printerr (const char *msg)
627{
628 write (STDERR_FILENO, msg, strlen (msg));
629}
630#endif
528 631
529static void (*syserr_cb)(const char *msg); 632static void (*syserr_cb)(const char *msg);
530 633
531void 634void
532ev_set_syserr_cb (void (*cb)(const char *msg)) 635ev_set_syserr_cb (void (*cb)(const char *msg))
… …
542 645
543 if (syserr_cb) 646 if (syserr_cb)
544 syserr_cb (msg); 647 syserr_cb (msg);
545 else 648 else
546 { 649 {
650#if EV_AVOID_STDIO
651 ev_printerr (msg);
652 ev_printerr (": ");
653 ev_printerr (strerror (errno));
654 ev_printerr ("\n");
655#else
547 perror (msg); 656 perror (msg);
657#endif
548 abort (); 658 abort ();
549 } 659 }
550} 660}
551 661
552static void * 662static void *
553ev_realloc_emul (void *ptr, long size) 663ev_realloc_emul (void *ptr, long size)
554{ 664{
665#if __GLIBC__
666 return realloc (ptr, size);
667#else
555 /* some systems, notably openbsd and darwin, fail to properly 668 /* some systems, notably openbsd and darwin, fail to properly
556 * implement realloc (x, 0) (as required by both ansi c-98 and 669 * implement realloc (x, 0) (as required by both ansi c-89 and
557 * the single unix specification, so work around them here. 670 * the single unix specification, so work around them here.
558 */ 671 */
559 672
560 if (size) 673 if (size)
561 return realloc (ptr, size); 674 return realloc (ptr, size);
562 675
563 free (ptr); 676 free (ptr);
564 return 0; 677 return 0;
678#endif
565} 679}
566 680
567static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 681static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
568 682
569void 683void
… …
577{ 691{
578 ptr = alloc (ptr, size); 692 ptr = alloc (ptr, size);
579 693
580 if (!ptr && size) 694 if (!ptr && size)
581 { 695 {
696#if EV_AVOID_STDIO
697 ev_printerr ("(libev) memory allocation failed, aborting.\n");
698#else
582 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 699 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
700#endif
583 abort (); 701 abort ();
584 } 702 }
585 703
586 return ptr; 704 return ptr;
587} 705}
… …
603 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 721 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
604 unsigned char unused; 722 unsigned char unused;
605#if EV_USE_EPOLL 723#if EV_USE_EPOLL
606 unsigned int egen; /* generation counter to counter epoll bugs */ 724 unsigned int egen; /* generation counter to counter epoll bugs */
607#endif 725#endif
608#if EV_SELECT_IS_WINSOCKET 726#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
609 SOCKET handle; 727 SOCKET handle;
728#endif
729#if EV_USE_IOCP
730 OVERLAPPED or, ow;
610#endif 731#endif
611} ANFD; 732} ANFD;
612 733
613/* stores the pending event set for a given watcher */ 734/* stores the pending event set for a given watcher */
614typedef struct 735typedef struct
… …
669 790
670 static int ev_default_loop_ptr; 791 static int ev_default_loop_ptr;
671 792
672#endif 793#endif
673 794
674#if EV_MINIMAL < 2 795#if EV_FEATURE_API
675# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 796# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
676# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 797# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
677# define EV_INVOKE_PENDING invoke_cb (EV_A) 798# define EV_INVOKE_PENDING invoke_cb (EV_A)
678#else 799#else
679# define EV_RELEASE_CB (void)0 800# define EV_RELEASE_CB (void)0
680# define EV_ACQUIRE_CB (void)0 801# define EV_ACQUIRE_CB (void)0
681# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 802# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
682#endif 803#endif
683 804
684#define EVUNLOOP_RECURSE 0x80 805#define EVBREAK_RECURSE 0x80
685 806
686/*****************************************************************************/ 807/*****************************************************************************/
687 808
688#ifndef EV_HAVE_EV_TIME 809#ifndef EV_HAVE_EV_TIME
689ev_tstamp 810ev_tstamp
… …
733 if (delay > 0.) 854 if (delay > 0.)
734 { 855 {
735#if EV_USE_NANOSLEEP 856#if EV_USE_NANOSLEEP
736 struct timespec ts; 857 struct timespec ts;
737 858
738 ts.tv_sec = (time_t)delay; 859 EV_TS_SET (ts, delay);
739 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
740
741 nanosleep (&ts, 0); 860 nanosleep (&ts, 0);
742#elif defined(_WIN32) 861#elif defined(_WIN32)
743 Sleep ((unsigned long)(delay * 1e3)); 862 Sleep ((unsigned long)(delay * 1e3));
744#else 863#else
745 struct timeval tv; 864 struct timeval tv;
746 865
747 tv.tv_sec = (time_t)delay;
748 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
749
750 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 866 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
751 /* something not guaranteed by newer posix versions, but guaranteed */ 867 /* something not guaranteed by newer posix versions, but guaranteed */
752 /* by older ones */ 868 /* by older ones */
869 EV_TV_SET (tv, delay);
753 select (0, 0, 0, 0, &tv); 870 select (0, 0, 0, 0, &tv);
754#endif 871#endif
755 } 872 }
756} 873}
757 874
758/*****************************************************************************/ 875/*****************************************************************************/
759 876
760#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 877#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
761 878
762/* find a suitable new size for the given array, */ 879/* find a suitable new size for the given array, */
763/* hopefully by rounding to a ncie-to-malloc size */ 880/* hopefully by rounding to a nice-to-malloc size */
764inline_size int 881inline_size int
765array_nextsize (int elem, int cur, int cnt) 882array_nextsize (int elem, int cur, int cnt)
766{ 883{
767 int ncur = cur + 1; 884 int ncur = cur + 1;
768 885
… …
864} 981}
865 982
866/*****************************************************************************/ 983/*****************************************************************************/
867 984
868inline_speed void 985inline_speed void
869fd_event_nc (EV_P_ int fd, int revents) 986fd_event_nocheck (EV_P_ int fd, int revents)
870{ 987{
871 ANFD *anfd = anfds + fd; 988 ANFD *anfd = anfds + fd;
872 ev_io *w; 989 ev_io *w;
873 990
874 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 991 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
886fd_event (EV_P_ int fd, int revents) 1003fd_event (EV_P_ int fd, int revents)
887{ 1004{
888 ANFD *anfd = anfds + fd; 1005 ANFD *anfd = anfds + fd;
889 1006
890 if (expect_true (!anfd->reify)) 1007 if (expect_true (!anfd->reify))
891 fd_event_nc (EV_A_ fd, revents); 1008 fd_event_nocheck (EV_A_ fd, revents);
892} 1009}
893 1010
894void 1011void
895ev_feed_fd_event (EV_P_ int fd, int revents) 1012ev_feed_fd_event (EV_P_ int fd, int revents)
896{ 1013{
897 if (fd >= 0 && fd < anfdmax) 1014 if (fd >= 0 && fd < anfdmax)
898 fd_event_nc (EV_A_ fd, revents); 1015 fd_event_nocheck (EV_A_ fd, revents);
899} 1016}
900 1017
901/* make sure the external fd watch events are in-sync */ 1018/* make sure the external fd watch events are in-sync */
902/* with the kernel/libev internal state */ 1019/* with the kernel/libev internal state */
903inline_size void 1020inline_size void
904fd_reify (EV_P) 1021fd_reify (EV_P)
905{ 1022{
906 int i; 1023 int i;
907 1024
1025#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1026 for (i = 0; i < fdchangecnt; ++i)
1027 {
1028 int fd = fdchanges [i];
1029 ANFD *anfd = anfds + fd;
1030
1031 if (anfd->reify & EV__IOFDSET && anfd->head)
1032 {
1033 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1034
1035 if (handle != anfd->handle)
1036 {
1037 unsigned long arg;
1038
1039 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1040
1041 /* handle changed, but fd didn't - we need to do it in two steps */
1042 backend_modify (EV_A_ fd, anfd->events, 0);
1043 anfd->events = 0;
1044 anfd->handle = handle;
1045 }
1046 }
1047 }
1048#endif
1049
908 for (i = 0; i < fdchangecnt; ++i) 1050 for (i = 0; i < fdchangecnt; ++i)
909 { 1051 {
910 int fd = fdchanges [i]; 1052 int fd = fdchanges [i];
911 ANFD *anfd = anfds + fd; 1053 ANFD *anfd = anfds + fd;
912 ev_io *w; 1054 ev_io *w;
913 1055
914 unsigned char events = 0; 1056 unsigned char o_events = anfd->events;
1057 unsigned char o_reify = anfd->reify;
915 1058
916 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1059 anfd->reify = 0;
917 events |= (unsigned char)w->events;
918 1060
919#if EV_SELECT_IS_WINSOCKET 1061 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
920 if (events)
921 { 1062 {
922 unsigned long arg; 1063 anfd->events = 0;
923 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1064
924 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1065 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1066 anfd->events |= (unsigned char)w->events;
1067
1068 if (o_events != anfd->events)
1069 o_reify = EV__IOFDSET; /* actually |= */
925 } 1070 }
926#endif
927 1071
928 { 1072 if (o_reify & EV__IOFDSET)
929 unsigned char o_events = anfd->events;
930 unsigned char o_reify = anfd->reify;
931
932 anfd->reify = 0;
933 anfd->events = events;
934
935 if (o_events != events || o_reify & EV__IOFDSET)
936 backend_modify (EV_A_ fd, o_events, events); 1073 backend_modify (EV_A_ fd, o_events, anfd->events);
937 }
938 } 1074 }
939 1075
940 fdchangecnt = 0; 1076 fdchangecnt = 0;
941} 1077}
942 1078
… …
966 ev_io_stop (EV_A_ w); 1102 ev_io_stop (EV_A_ w);
967 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1103 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
968 } 1104 }
969} 1105}
970 1106
971/* check whether the given fd is atcually valid, for error recovery */ 1107/* check whether the given fd is actually valid, for error recovery */
972inline_size int 1108inline_size int
973fd_valid (int fd) 1109fd_valid (int fd)
974{ 1110{
975#ifdef _WIN32 1111#ifdef _WIN32
976 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1112 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
… …
1018 anfds [fd].emask = 0; 1154 anfds [fd].emask = 0;
1019 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1155 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1020 } 1156 }
1021} 1157}
1022 1158
1159/* used to prepare libev internal fd's */
1160/* this is not fork-safe */
1161inline_speed void
1162fd_intern (int fd)
1163{
1164#ifdef _WIN32
1165 unsigned long arg = 1;
1166 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1167#else
1168 fcntl (fd, F_SETFD, FD_CLOEXEC);
1169 fcntl (fd, F_SETFL, O_NONBLOCK);
1170#endif
1171}
1172
1023/*****************************************************************************/ 1173/*****************************************************************************/
1024 1174
1025/* 1175/*
1026 * the heap functions want a real array index. array index 0 uis guaranteed to not 1176 * the heap functions want a real array index. array index 0 is guaranteed to not
1027 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1177 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1028 * the branching factor of the d-tree. 1178 * the branching factor of the d-tree.
1029 */ 1179 */
1030 1180
1031/* 1181/*
… …
1179 1329
1180static ANSIG signals [EV_NSIG - 1]; 1330static ANSIG signals [EV_NSIG - 1];
1181 1331
1182/*****************************************************************************/ 1332/*****************************************************************************/
1183 1333
1184/* used to prepare libev internal fd's */ 1334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1185/* this is not fork-safe */
1186inline_speed void
1187fd_intern (int fd)
1188{
1189#ifdef _WIN32
1190 unsigned long arg = 1;
1191 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1192#else
1193 fcntl (fd, F_SETFD, FD_CLOEXEC);
1194 fcntl (fd, F_SETFL, O_NONBLOCK);
1195#endif
1196}
1197 1335
1198static void noinline 1336static void noinline
1199evpipe_init (EV_P) 1337evpipe_init (EV_P)
1200{ 1338{
1201 if (!ev_is_active (&pipe_w)) 1339 if (!ev_is_active (&pipe_w))
1202 { 1340 {
1203#if EV_USE_EVENTFD 1341# if EV_USE_EVENTFD
1204 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1342 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1205 if (evfd < 0 && errno == EINVAL) 1343 if (evfd < 0 && errno == EINVAL)
1206 evfd = eventfd (0, 0); 1344 evfd = eventfd (0, 0);
1207 1345
1208 if (evfd >= 0) 1346 if (evfd >= 0)
… …
1210 evpipe [0] = -1; 1348 evpipe [0] = -1;
1211 fd_intern (evfd); /* doing it twice doesn't hurt */ 1349 fd_intern (evfd); /* doing it twice doesn't hurt */
1212 ev_io_set (&pipe_w, evfd, EV_READ); 1350 ev_io_set (&pipe_w, evfd, EV_READ);
1213 } 1351 }
1214 else 1352 else
1215#endif 1353# endif
1216 { 1354 {
1217 while (pipe (evpipe)) 1355 while (pipe (evpipe))
1218 ev_syserr ("(libev) error creating signal/async pipe"); 1356 ev_syserr ("(libev) error creating signal/async pipe");
1219 1357
1220 fd_intern (evpipe [0]); 1358 fd_intern (evpipe [0]);
… …
1231evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1369evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1232{ 1370{
1233 if (!*flag) 1371 if (!*flag)
1234 { 1372 {
1235 int old_errno = errno; /* save errno because write might clobber it */ 1373 int old_errno = errno; /* save errno because write might clobber it */
1374 char dummy;
1236 1375
1237 *flag = 1; 1376 *flag = 1;
1238 1377
1239#if EV_USE_EVENTFD 1378#if EV_USE_EVENTFD
1240 if (evfd >= 0) 1379 if (evfd >= 0)
… …
1242 uint64_t counter = 1; 1381 uint64_t counter = 1;
1243 write (evfd, &counter, sizeof (uint64_t)); 1382 write (evfd, &counter, sizeof (uint64_t));
1244 } 1383 }
1245 else 1384 else
1246#endif 1385#endif
1386 /* win32 people keep sending patches that change this write() to send() */
1387 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1388 /* so when you think this write should be a send instead, please find out */
1389 /* where your send() is from - it's definitely not the microsoft send, and */
1390 /* tell me. thank you. */
1247 write (evpipe [1], &old_errno, 1); 1391 write (evpipe [1], &dummy, 1);
1248 1392
1249 errno = old_errno; 1393 errno = old_errno;
1250 } 1394 }
1251} 1395}
1252 1396
… …
1265 } 1409 }
1266 else 1410 else
1267#endif 1411#endif
1268 { 1412 {
1269 char dummy; 1413 char dummy;
1414 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1270 read (evpipe [0], &dummy, 1); 1415 read (evpipe [0], &dummy, 1);
1271 } 1416 }
1272 1417
1418#if EV_SIGNAL_ENABLE
1273 if (sig_pending) 1419 if (sig_pending)
1274 { 1420 {
1275 sig_pending = 0; 1421 sig_pending = 0;
1276 1422
1277 for (i = EV_NSIG - 1; i--; ) 1423 for (i = EV_NSIG - 1; i--; )
1278 if (expect_false (signals [i].pending)) 1424 if (expect_false (signals [i].pending))
1279 ev_feed_signal_event (EV_A_ i + 1); 1425 ev_feed_signal_event (EV_A_ i + 1);
1280 } 1426 }
1427#endif
1281 1428
1282#if EV_ASYNC_ENABLE 1429#if EV_ASYNC_ENABLE
1283 if (async_pending) 1430 if (async_pending)
1284 { 1431 {
1285 async_pending = 0; 1432 async_pending = 0;
… …
1294#endif 1441#endif
1295} 1442}
1296 1443
1297/*****************************************************************************/ 1444/*****************************************************************************/
1298 1445
1446void
1447ev_feed_signal (int signum)
1448{
1449#if EV_MULTIPLICITY
1450 EV_P = signals [signum - 1].loop;
1451
1452 if (!EV_A)
1453 return;
1454#endif
1455
1456 signals [signum - 1].pending = 1;
1457 evpipe_write (EV_A_ &sig_pending);
1458}
1459
1299static void 1460static void
1300ev_sighandler (int signum) 1461ev_sighandler (int signum)
1301{ 1462{
1302#if EV_MULTIPLICITY
1303 EV_P = signals [signum - 1].loop;
1304#endif
1305
1306#ifdef _WIN32 1463#ifdef _WIN32
1307 signal (signum, ev_sighandler); 1464 signal (signum, ev_sighandler);
1308#endif 1465#endif
1309 1466
1310 signals [signum - 1].pending = 1; 1467 ev_feed_signal (signum);
1311 evpipe_write (EV_A_ &sig_pending);
1312} 1468}
1313 1469
1314void noinline 1470void noinline
1315ev_feed_signal_event (EV_P_ int signum) 1471ev_feed_signal_event (EV_P_ int signum)
1316{ 1472{
… …
1353 break; 1509 break;
1354 } 1510 }
1355} 1511}
1356#endif 1512#endif
1357 1513
1514#endif
1515
1358/*****************************************************************************/ 1516/*****************************************************************************/
1359 1517
1518#if EV_CHILD_ENABLE
1360static WL childs [EV_PID_HASHSIZE]; 1519static WL childs [EV_PID_HASHSIZE];
1361
1362#ifndef _WIN32
1363 1520
1364static ev_signal childev; 1521static ev_signal childev;
1365 1522
1366#ifndef WIFCONTINUED 1523#ifndef WIFCONTINUED
1367# define WIFCONTINUED(status) 0 1524# define WIFCONTINUED(status) 0
… …
1372child_reap (EV_P_ int chain, int pid, int status) 1529child_reap (EV_P_ int chain, int pid, int status)
1373{ 1530{
1374 ev_child *w; 1531 ev_child *w;
1375 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1532 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1376 1533
1377 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1534 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1378 { 1535 {
1379 if ((w->pid == pid || !w->pid) 1536 if ((w->pid == pid || !w->pid)
1380 && (!traced || (w->flags & 1))) 1537 && (!traced || (w->flags & 1)))
1381 { 1538 {
1382 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1539 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1407 /* make sure we are called again until all children have been reaped */ 1564 /* make sure we are called again until all children have been reaped */
1408 /* we need to do it this way so that the callback gets called before we continue */ 1565 /* we need to do it this way so that the callback gets called before we continue */
1409 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1566 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1410 1567
1411 child_reap (EV_A_ pid, pid, status); 1568 child_reap (EV_A_ pid, pid, status);
1412 if (EV_PID_HASHSIZE > 1) 1569 if ((EV_PID_HASHSIZE) > 1)
1413 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1570 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1414} 1571}
1415 1572
1416#endif 1573#endif
1417 1574
1418/*****************************************************************************/ 1575/*****************************************************************************/
1419 1576
1577#if EV_USE_IOCP
1578# include "ev_iocp.c"
1579#endif
1420#if EV_USE_PORT 1580#if EV_USE_PORT
1421# include "ev_port.c" 1581# include "ev_port.c"
1422#endif 1582#endif
1423#if EV_USE_KQUEUE 1583#if EV_USE_KQUEUE
1424# include "ev_kqueue.c" 1584# include "ev_kqueue.c"
… …
1484#ifdef __APPLE__ 1644#ifdef __APPLE__
1485 /* only select works correctly on that "unix-certified" platform */ 1645 /* only select works correctly on that "unix-certified" platform */
1486 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1646 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1487 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1647 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1488#endif 1648#endif
1649#ifdef __FreeBSD__
1650 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1651#endif
1489 1652
1490 return flags; 1653 return flags;
1491} 1654}
1492 1655
1493unsigned int 1656unsigned int
1494ev_embeddable_backends (void) 1657ev_embeddable_backends (void)
1495{ 1658{
1496 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1659 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1497 1660
1498 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1661 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1499 /* please fix it and tell me how to detect the fix */ 1662 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1500 flags &= ~EVBACKEND_EPOLL; 1663 flags &= ~EVBACKEND_EPOLL;
1501 1664
1502 return flags; 1665 return flags;
1503} 1666}
1504 1667
1505unsigned int 1668unsigned int
1506ev_backend (EV_P) 1669ev_backend (EV_P)
1507{ 1670{
1508 return backend; 1671 return backend;
1509} 1672}
1510 1673
1511#if EV_MINIMAL < 2 1674#if EV_FEATURE_API
1512unsigned int 1675unsigned int
1513ev_loop_count (EV_P) 1676ev_iteration (EV_P)
1514{ 1677{
1515 return loop_count; 1678 return loop_count;
1516} 1679}
1517 1680
1518unsigned int 1681unsigned int
1519ev_loop_depth (EV_P) 1682ev_depth (EV_P)
1520{ 1683{
1521 return loop_depth; 1684 return loop_depth;
1522} 1685}
1523 1686
1524void 1687void
… …
1561static void noinline 1724static void noinline
1562loop_init (EV_P_ unsigned int flags) 1725loop_init (EV_P_ unsigned int flags)
1563{ 1726{
1564 if (!backend) 1727 if (!backend)
1565 { 1728 {
1729 origflags = flags;
1730
1566#if EV_USE_REALTIME 1731#if EV_USE_REALTIME
1567 if (!have_realtime) 1732 if (!have_realtime)
1568 { 1733 {
1569 struct timespec ts; 1734 struct timespec ts;
1570 1735
… …
1596 1761
1597 ev_rt_now = ev_time (); 1762 ev_rt_now = ev_time ();
1598 mn_now = get_clock (); 1763 mn_now = get_clock ();
1599 now_floor = mn_now; 1764 now_floor = mn_now;
1600 rtmn_diff = ev_rt_now - mn_now; 1765 rtmn_diff = ev_rt_now - mn_now;
1601#if EV_MINIMAL < 2 1766#if EV_FEATURE_API
1602 invoke_cb = ev_invoke_pending; 1767 invoke_cb = ev_invoke_pending;
1603#endif 1768#endif
1604 1769
1605 io_blocktime = 0.; 1770 io_blocktime = 0.;
1606 timeout_blocktime = 0.; 1771 timeout_blocktime = 0.;
… …
1615#endif 1780#endif
1616#if EV_USE_SIGNALFD 1781#if EV_USE_SIGNALFD
1617 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1782 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1618#endif 1783#endif
1619 1784
1620 if (!(flags & 0x0000ffffU)) 1785 if (!(flags & EVBACKEND_MASK))
1621 flags |= ev_recommended_backends (); 1786 flags |= ev_recommended_backends ();
1622 1787
1788#if EV_USE_IOCP
1789 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1790#endif
1623#if EV_USE_PORT 1791#if EV_USE_PORT
1624 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1792 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1625#endif 1793#endif
1626#if EV_USE_KQUEUE 1794#if EV_USE_KQUEUE
1627 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1795 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1636 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1804 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1637#endif 1805#endif
1638 1806
1639 ev_prepare_init (&pending_w, pendingcb); 1807 ev_prepare_init (&pending_w, pendingcb);
1640 1808
1809#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1641 ev_init (&pipe_w, pipecb); 1810 ev_init (&pipe_w, pipecb);
1642 ev_set_priority (&pipe_w, EV_MAXPRI); 1811 ev_set_priority (&pipe_w, EV_MAXPRI);
1812#endif
1643 } 1813 }
1644} 1814}
1645 1815
1646/* free up a loop structure */ 1816/* free up a loop structure */
1647static void noinline 1817void
1648loop_destroy (EV_P) 1818ev_loop_destroy (EV_P)
1649{ 1819{
1650 int i; 1820 int i;
1821
1822#if EV_MULTIPLICITY
1823 /* mimic free (0) */
1824 if (!EV_A)
1825 return;
1826#endif
1827
1828#if EV_CLEANUP_ENABLE
1829 /* queue cleanup watchers (and execute them) */
1830 if (expect_false (cleanupcnt))
1831 {
1832 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1833 EV_INVOKE_PENDING;
1834 }
1835#endif
1836
1837#if EV_CHILD_ENABLE
1838 if (ev_is_active (&childev))
1839 {
1840 ev_ref (EV_A); /* child watcher */
1841 ev_signal_stop (EV_A_ &childev);
1842 }
1843#endif
1651 1844
1652 if (ev_is_active (&pipe_w)) 1845 if (ev_is_active (&pipe_w))
1653 { 1846 {
1654 /*ev_ref (EV_A);*/ 1847 /*ev_ref (EV_A);*/
1655 /*ev_io_stop (EV_A_ &pipe_w);*/ 1848 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1677#endif 1870#endif
1678 1871
1679 if (backend_fd >= 0) 1872 if (backend_fd >= 0)
1680 close (backend_fd); 1873 close (backend_fd);
1681 1874
1875#if EV_USE_IOCP
1876 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1877#endif
1682#if EV_USE_PORT 1878#if EV_USE_PORT
1683 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1879 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1684#endif 1880#endif
1685#if EV_USE_KQUEUE 1881#if EV_USE_KQUEUE
1686 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1882 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1713 array_free (periodic, EMPTY); 1909 array_free (periodic, EMPTY);
1714#endif 1910#endif
1715#if EV_FORK_ENABLE 1911#if EV_FORK_ENABLE
1716 array_free (fork, EMPTY); 1912 array_free (fork, EMPTY);
1717#endif 1913#endif
1914#if EV_CLEANUP_ENABLE
1915 array_free (cleanup, EMPTY);
1916#endif
1718 array_free (prepare, EMPTY); 1917 array_free (prepare, EMPTY);
1719 array_free (check, EMPTY); 1918 array_free (check, EMPTY);
1720#if EV_ASYNC_ENABLE 1919#if EV_ASYNC_ENABLE
1721 array_free (async, EMPTY); 1920 array_free (async, EMPTY);
1722#endif 1921#endif
1723 1922
1724 backend = 0; 1923 backend = 0;
1924
1925#if EV_MULTIPLICITY
1926 if (ev_is_default_loop (EV_A))
1927#endif
1928 ev_default_loop_ptr = 0;
1929#if EV_MULTIPLICITY
1930 else
1931 ev_free (EV_A);
1932#endif
1725} 1933}
1726 1934
1727#if EV_USE_INOTIFY 1935#if EV_USE_INOTIFY
1728inline_size void infy_fork (EV_P); 1936inline_size void infy_fork (EV_P);
1729#endif 1937#endif
… …
1765 { 1973 {
1766 EV_WIN32_CLOSE_FD (evpipe [0]); 1974 EV_WIN32_CLOSE_FD (evpipe [0]);
1767 EV_WIN32_CLOSE_FD (evpipe [1]); 1975 EV_WIN32_CLOSE_FD (evpipe [1]);
1768 } 1976 }
1769 1977
1978#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1770 evpipe_init (EV_A); 1979 evpipe_init (EV_A);
1771 /* now iterate over everything, in case we missed something */ 1980 /* now iterate over everything, in case we missed something */
1772 pipecb (EV_A_ &pipe_w, EV_READ); 1981 pipecb (EV_A_ &pipe_w, EV_READ);
1982#endif
1773 } 1983 }
1774 1984
1775 postfork = 0; 1985 postfork = 0;
1776} 1986}
1777 1987
… …
1786 loop_init (EV_A_ flags); 1996 loop_init (EV_A_ flags);
1787 1997
1788 if (ev_backend (EV_A)) 1998 if (ev_backend (EV_A))
1789 return EV_A; 1999 return EV_A;
1790 2000
2001 ev_free (EV_A);
1791 return 0; 2002 return 0;
1792} 2003}
1793 2004
1794void
1795ev_loop_destroy (EV_P)
1796{
1797 loop_destroy (EV_A);
1798 ev_free (loop);
1799}
1800
1801void
1802ev_loop_fork (EV_P)
1803{
1804 postfork = 1; /* must be in line with ev_default_fork */
1805}
1806#endif /* multiplicity */ 2005#endif /* multiplicity */
1807 2006
1808#if EV_VERIFY 2007#if EV_VERIFY
1809static void noinline 2008static void noinline
1810verify_watcher (EV_P_ W w) 2009verify_watcher (EV_P_ W w)
… …
1839 verify_watcher (EV_A_ ws [cnt]); 2038 verify_watcher (EV_A_ ws [cnt]);
1840 } 2039 }
1841} 2040}
1842#endif 2041#endif
1843 2042
1844#if EV_MINIMAL < 2 2043#if EV_FEATURE_API
1845void 2044void
1846ev_loop_verify (EV_P) 2045ev_verify (EV_P)
1847{ 2046{
1848#if EV_VERIFY 2047#if EV_VERIFY
1849 int i; 2048 int i;
1850 WL w; 2049 WL w;
1851 2050
… …
1885#if EV_FORK_ENABLE 2084#if EV_FORK_ENABLE
1886 assert (forkmax >= forkcnt); 2085 assert (forkmax >= forkcnt);
1887 array_verify (EV_A_ (W *)forks, forkcnt); 2086 array_verify (EV_A_ (W *)forks, forkcnt);
1888#endif 2087#endif
1889 2088
2089#if EV_CLEANUP_ENABLE
2090 assert (cleanupmax >= cleanupcnt);
2091 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2092#endif
2093
1890#if EV_ASYNC_ENABLE 2094#if EV_ASYNC_ENABLE
1891 assert (asyncmax >= asynccnt); 2095 assert (asyncmax >= asynccnt);
1892 array_verify (EV_A_ (W *)asyncs, asynccnt); 2096 array_verify (EV_A_ (W *)asyncs, asynccnt);
1893#endif 2097#endif
1894 2098
2099#if EV_PREPARE_ENABLE
1895 assert (preparemax >= preparecnt); 2100 assert (preparemax >= preparecnt);
1896 array_verify (EV_A_ (W *)prepares, preparecnt); 2101 array_verify (EV_A_ (W *)prepares, preparecnt);
2102#endif
1897 2103
2104#if EV_CHECK_ENABLE
1898 assert (checkmax >= checkcnt); 2105 assert (checkmax >= checkcnt);
1899 array_verify (EV_A_ (W *)checks, checkcnt); 2106 array_verify (EV_A_ (W *)checks, checkcnt);
2107#endif
1900 2108
1901# if 0 2109# if 0
2110#if EV_CHILD_ENABLE
1902 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2111 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1903 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2112 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2113#endif
1904# endif 2114# endif
1905#endif 2115#endif
1906} 2116}
1907#endif 2117#endif
1908 2118
1909#if EV_MULTIPLICITY 2119#if EV_MULTIPLICITY
1910struct ev_loop * 2120struct ev_loop *
1911ev_default_loop_init (unsigned int flags)
1912#else 2121#else
1913int 2122int
2123#endif
1914ev_default_loop (unsigned int flags) 2124ev_default_loop (unsigned int flags)
1915#endif
1916{ 2125{
1917 if (!ev_default_loop_ptr) 2126 if (!ev_default_loop_ptr)
1918 { 2127 {
1919#if EV_MULTIPLICITY 2128#if EV_MULTIPLICITY
1920 EV_P = ev_default_loop_ptr = &default_loop_struct; 2129 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1924 2133
1925 loop_init (EV_A_ flags); 2134 loop_init (EV_A_ flags);
1926 2135
1927 if (ev_backend (EV_A)) 2136 if (ev_backend (EV_A))
1928 { 2137 {
1929#ifndef _WIN32 2138#if EV_CHILD_ENABLE
1930 ev_signal_init (&childev, childcb, SIGCHLD); 2139 ev_signal_init (&childev, childcb, SIGCHLD);
1931 ev_set_priority (&childev, EV_MAXPRI); 2140 ev_set_priority (&childev, EV_MAXPRI);
1932 ev_signal_start (EV_A_ &childev); 2141 ev_signal_start (EV_A_ &childev);
1933 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2142 ev_unref (EV_A); /* child watcher should not keep loop alive */
1934#endif 2143#endif
… …
1939 2148
1940 return ev_default_loop_ptr; 2149 return ev_default_loop_ptr;
1941} 2150}
1942 2151
1943void 2152void
1944ev_default_destroy (void) 2153ev_loop_fork (EV_P)
1945{ 2154{
1946#if EV_MULTIPLICITY
1947 EV_P = ev_default_loop_ptr;
1948#endif
1949
1950 ev_default_loop_ptr = 0;
1951
1952#ifndef _WIN32
1953 ev_ref (EV_A); /* child watcher */
1954 ev_signal_stop (EV_A_ &childev);
1955#endif
1956
1957 loop_destroy (EV_A);
1958}
1959
1960void
1961ev_default_fork (void)
1962{
1963#if EV_MULTIPLICITY
1964 EV_P = ev_default_loop_ptr;
1965#endif
1966
1967 postfork = 1; /* must be in line with ev_loop_fork */ 2155 postfork = 1; /* must be in line with ev_default_fork */
1968} 2156}
1969 2157
1970/*****************************************************************************/ 2158/*****************************************************************************/
1971 2159
1972void 2160void
… …
1994 2182
1995 for (pri = NUMPRI; pri--; ) 2183 for (pri = NUMPRI; pri--; )
1996 while (pendingcnt [pri]) 2184 while (pendingcnt [pri])
1997 { 2185 {
1998 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2186 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1999
2000 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2001 /* ^ this is no longer true, as pending_w could be here */
2002 2187
2003 p->w->pending = 0; 2188 p->w->pending = 0;
2004 EV_CB_INVOKE (p->w, p->events); 2189 EV_CB_INVOKE (p->w, p->events);
2005 EV_FREQUENT_CHECK; 2190 EV_FREQUENT_CHECK;
2006 } 2191 }
… …
2063 EV_FREQUENT_CHECK; 2248 EV_FREQUENT_CHECK;
2064 feed_reverse (EV_A_ (W)w); 2249 feed_reverse (EV_A_ (W)w);
2065 } 2250 }
2066 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2251 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2067 2252
2068 feed_reverse_done (EV_A_ EV_TIMEOUT); 2253 feed_reverse_done (EV_A_ EV_TIMER);
2069 } 2254 }
2070} 2255}
2071 2256
2072#if EV_PERIODIC_ENABLE 2257#if EV_PERIODIC_ENABLE
2258
2259static void noinline
2260periodic_recalc (EV_P_ ev_periodic *w)
2261{
2262 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2263 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2264
2265 /* the above almost always errs on the low side */
2266 while (at <= ev_rt_now)
2267 {
2268 ev_tstamp nat = at + w->interval;
2269
2270 /* when resolution fails us, we use ev_rt_now */
2271 if (expect_false (nat == at))
2272 {
2273 at = ev_rt_now;
2274 break;
2275 }
2276
2277 at = nat;
2278 }
2279
2280 ev_at (w) = at;
2281}
2282
2073/* make periodics pending */ 2283/* make periodics pending */
2074inline_size void 2284inline_size void
2075periodics_reify (EV_P) 2285periodics_reify (EV_P)
2076{ 2286{
2077 EV_FREQUENT_CHECK; 2287 EV_FREQUENT_CHECK;
… …
2096 ANHE_at_cache (periodics [HEAP0]); 2306 ANHE_at_cache (periodics [HEAP0]);
2097 downheap (periodics, periodiccnt, HEAP0); 2307 downheap (periodics, periodiccnt, HEAP0);
2098 } 2308 }
2099 else if (w->interval) 2309 else if (w->interval)
2100 { 2310 {
2101 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2311 periodic_recalc (EV_A_ w);
2102 /* if next trigger time is not sufficiently in the future, put it there */
2103 /* this might happen because of floating point inexactness */
2104 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2105 {
2106 ev_at (w) += w->interval;
2107
2108 /* if interval is unreasonably low we might still have a time in the past */
2109 /* so correct this. this will make the periodic very inexact, but the user */
2110 /* has effectively asked to get triggered more often than possible */
2111 if (ev_at (w) < ev_rt_now)
2112 ev_at (w) = ev_rt_now;
2113 }
2114
2115 ANHE_at_cache (periodics [HEAP0]); 2312 ANHE_at_cache (periodics [HEAP0]);
2116 downheap (periodics, periodiccnt, HEAP0); 2313 downheap (periodics, periodiccnt, HEAP0);
2117 } 2314 }
2118 else 2315 else
2119 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2316 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2126 feed_reverse_done (EV_A_ EV_PERIODIC); 2323 feed_reverse_done (EV_A_ EV_PERIODIC);
2127 } 2324 }
2128} 2325}
2129 2326
2130/* simply recalculate all periodics */ 2327/* simply recalculate all periodics */
2131/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2328/* TODO: maybe ensure that at least one event happens when jumping forward? */
2132static void noinline 2329static void noinline
2133periodics_reschedule (EV_P) 2330periodics_reschedule (EV_P)
2134{ 2331{
2135 int i; 2332 int i;
2136 2333
… …
2140 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2337 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2141 2338
2142 if (w->reschedule_cb) 2339 if (w->reschedule_cb)
2143 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2340 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2144 else if (w->interval) 2341 else if (w->interval)
2145 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2342 periodic_recalc (EV_A_ w);
2146 2343
2147 ANHE_at_cache (periodics [i]); 2344 ANHE_at_cache (periodics [i]);
2148 } 2345 }
2149 2346
2150 reheap (periodics, periodiccnt); 2347 reheap (periodics, periodiccnt);
… …
2197 * doesn't hurt either as we only do this on time-jumps or 2394 * doesn't hurt either as we only do this on time-jumps or
2198 * in the unlikely event of having been preempted here. 2395 * in the unlikely event of having been preempted here.
2199 */ 2396 */
2200 for (i = 4; --i; ) 2397 for (i = 4; --i; )
2201 { 2398 {
2399 ev_tstamp diff;
2202 rtmn_diff = ev_rt_now - mn_now; 2400 rtmn_diff = ev_rt_now - mn_now;
2203 2401
2402 diff = odiff - rtmn_diff;
2403
2204 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2404 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2205 return; /* all is well */ 2405 return; /* all is well */
2206 2406
2207 ev_rt_now = ev_time (); 2407 ev_rt_now = ev_time ();
2208 mn_now = get_clock (); 2408 mn_now = get_clock ();
2209 now_floor = mn_now; 2409 now_floor = mn_now;
… …
2232 mn_now = ev_rt_now; 2432 mn_now = ev_rt_now;
2233 } 2433 }
2234} 2434}
2235 2435
2236void 2436void
2237ev_loop (EV_P_ int flags) 2437ev_run (EV_P_ int flags)
2238{ 2438{
2239#if EV_MINIMAL < 2 2439#if EV_FEATURE_API
2240 ++loop_depth; 2440 ++loop_depth;
2241#endif 2441#endif
2242 2442
2243 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2443 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2244 2444
2245 loop_done = EVUNLOOP_CANCEL; 2445 loop_done = EVBREAK_CANCEL;
2246 2446
2247 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2447 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2248 2448
2249 do 2449 do
2250 { 2450 {
2251#if EV_VERIFY >= 2 2451#if EV_VERIFY >= 2
2252 ev_loop_verify (EV_A); 2452 ev_verify (EV_A);
2253#endif 2453#endif
2254 2454
2255#ifndef _WIN32 2455#ifndef _WIN32
2256 if (expect_false (curpid)) /* penalise the forking check even more */ 2456 if (expect_false (curpid)) /* penalise the forking check even more */
2257 if (expect_false (getpid () != curpid)) 2457 if (expect_false (getpid () != curpid))
… …
2269 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2469 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2270 EV_INVOKE_PENDING; 2470 EV_INVOKE_PENDING;
2271 } 2471 }
2272#endif 2472#endif
2273 2473
2474#if EV_PREPARE_ENABLE
2274 /* queue prepare watchers (and execute them) */ 2475 /* queue prepare watchers (and execute them) */
2275 if (expect_false (preparecnt)) 2476 if (expect_false (preparecnt))
2276 { 2477 {
2277 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2478 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2278 EV_INVOKE_PENDING; 2479 EV_INVOKE_PENDING;
2279 } 2480 }
2481#endif
2280 2482
2281 if (expect_false (loop_done)) 2483 if (expect_false (loop_done))
2282 break; 2484 break;
2283 2485
2284 /* we might have forked, so reify kernel state if necessary */ 2486 /* we might have forked, so reify kernel state if necessary */
… …
2291 /* calculate blocking time */ 2493 /* calculate blocking time */
2292 { 2494 {
2293 ev_tstamp waittime = 0.; 2495 ev_tstamp waittime = 0.;
2294 ev_tstamp sleeptime = 0.; 2496 ev_tstamp sleeptime = 0.;
2295 2497
2498 /* remember old timestamp for io_blocktime calculation */
2499 ev_tstamp prev_mn_now = mn_now;
2500
2501 /* update time to cancel out callback processing overhead */
2502 time_update (EV_A_ 1e100);
2503
2296 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2504 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2297 { 2505 {
2298 /* remember old timestamp for io_blocktime calculation */
2299 ev_tstamp prev_mn_now = mn_now;
2300
2301 /* update time to cancel out callback processing overhead */
2302 time_update (EV_A_ 1e100);
2303
2304 waittime = MAX_BLOCKTIME; 2506 waittime = MAX_BLOCKTIME;
2305 2507
2306 if (timercnt) 2508 if (timercnt)
2307 { 2509 {
2308 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2510 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2309 if (waittime > to) waittime = to; 2511 if (waittime > to) waittime = to;
2310 } 2512 }
2311 2513
2312#if EV_PERIODIC_ENABLE 2514#if EV_PERIODIC_ENABLE
2313 if (periodiccnt) 2515 if (periodiccnt)
2314 { 2516 {
2315 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2517 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2316 if (waittime > to) waittime = to; 2518 if (waittime > to) waittime = to;
2317 } 2519 }
2318#endif 2520#endif
2319 2521
2320 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2522 /* don't let timeouts decrease the waittime below timeout_blocktime */
2321 if (expect_false (waittime < timeout_blocktime)) 2523 if (expect_false (waittime < timeout_blocktime))
2322 waittime = timeout_blocktime; 2524 waittime = timeout_blocktime;
2525
2526 /* at this point, we NEED to wait, so we have to ensure */
2527 /* to pass a minimum nonzero value to the backend */
2528 if (expect_false (waittime < backend_mintime))
2529 waittime = backend_mintime;
2323 2530
2324 /* extra check because io_blocktime is commonly 0 */ 2531 /* extra check because io_blocktime is commonly 0 */
2325 if (expect_false (io_blocktime)) 2532 if (expect_false (io_blocktime))
2326 { 2533 {
2327 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2534 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2328 2535
2329 if (sleeptime > waittime - backend_fudge) 2536 if (sleeptime > waittime - backend_mintime)
2330 sleeptime = waittime - backend_fudge; 2537 sleeptime = waittime - backend_mintime;
2331 2538
2332 if (expect_true (sleeptime > 0.)) 2539 if (expect_true (sleeptime > 0.))
2333 { 2540 {
2334 ev_sleep (sleeptime); 2541 ev_sleep (sleeptime);
2335 waittime -= sleeptime; 2542 waittime -= sleeptime;
2336 } 2543 }
2337 } 2544 }
2338 } 2545 }
2339 2546
2340#if EV_MINIMAL < 2 2547#if EV_FEATURE_API
2341 ++loop_count; 2548 ++loop_count;
2342#endif 2549#endif
2343 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2550 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2344 backend_poll (EV_A_ waittime); 2551 backend_poll (EV_A_ waittime);
2345 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2552 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2346 2553
2347 /* update ev_rt_now, do magic */ 2554 /* update ev_rt_now, do magic */
2348 time_update (EV_A_ waittime + sleeptime); 2555 time_update (EV_A_ waittime + sleeptime);
2349 } 2556 }
2350 2557
… …
2357#if EV_IDLE_ENABLE 2564#if EV_IDLE_ENABLE
2358 /* queue idle watchers unless other events are pending */ 2565 /* queue idle watchers unless other events are pending */
2359 idle_reify (EV_A); 2566 idle_reify (EV_A);
2360#endif 2567#endif
2361 2568
2569#if EV_CHECK_ENABLE
2362 /* queue check watchers, to be executed first */ 2570 /* queue check watchers, to be executed first */
2363 if (expect_false (checkcnt)) 2571 if (expect_false (checkcnt))
2364 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2572 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2573#endif
2365 2574
2366 EV_INVOKE_PENDING; 2575 EV_INVOKE_PENDING;
2367 } 2576 }
2368 while (expect_true ( 2577 while (expect_true (
2369 activecnt 2578 activecnt
2370 && !loop_done 2579 && !loop_done
2371 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2580 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2372 )); 2581 ));
2373 2582
2374 if (loop_done == EVUNLOOP_ONE) 2583 if (loop_done == EVBREAK_ONE)
2375 loop_done = EVUNLOOP_CANCEL; 2584 loop_done = EVBREAK_CANCEL;
2376 2585
2377#if EV_MINIMAL < 2 2586#if EV_FEATURE_API
2378 --loop_depth; 2587 --loop_depth;
2379#endif 2588#endif
2380} 2589}
2381 2590
2382void 2591void
2383ev_unloop (EV_P_ int how) 2592ev_break (EV_P_ int how)
2384{ 2593{
2385 loop_done = how; 2594 loop_done = how;
2386} 2595}
2387 2596
2388void 2597void
… …
2536 EV_FREQUENT_CHECK; 2745 EV_FREQUENT_CHECK;
2537 2746
2538 wlist_del (&anfds[w->fd].head, (WL)w); 2747 wlist_del (&anfds[w->fd].head, (WL)w);
2539 ev_stop (EV_A_ (W)w); 2748 ev_stop (EV_A_ (W)w);
2540 2749
2541 fd_change (EV_A_ w->fd, 1); 2750 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2542 2751
2543 EV_FREQUENT_CHECK; 2752 EV_FREQUENT_CHECK;
2544} 2753}
2545 2754
2546void noinline 2755void noinline
… …
2638 if (w->reschedule_cb) 2847 if (w->reschedule_cb)
2639 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2848 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2640 else if (w->interval) 2849 else if (w->interval)
2641 { 2850 {
2642 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2851 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2643 /* this formula differs from the one in periodic_reify because we do not always round up */ 2852 periodic_recalc (EV_A_ w);
2644 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2645 } 2853 }
2646 else 2854 else
2647 ev_at (w) = w->offset; 2855 ev_at (w) = w->offset;
2648 2856
2649 EV_FREQUENT_CHECK; 2857 EV_FREQUENT_CHECK;
… …
2698#endif 2906#endif
2699 2907
2700#ifndef SA_RESTART 2908#ifndef SA_RESTART
2701# define SA_RESTART 0 2909# define SA_RESTART 0
2702#endif 2910#endif
2911
2912#if EV_SIGNAL_ENABLE
2703 2913
2704void noinline 2914void noinline
2705ev_signal_start (EV_P_ ev_signal *w) 2915ev_signal_start (EV_P_ ev_signal *w)
2706{ 2916{
2707 if (expect_false (ev_is_active (w))) 2917 if (expect_false (ev_is_active (w)))
… …
2768 sa.sa_handler = ev_sighandler; 2978 sa.sa_handler = ev_sighandler;
2769 sigfillset (&sa.sa_mask); 2979 sigfillset (&sa.sa_mask);
2770 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2980 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2771 sigaction (w->signum, &sa, 0); 2981 sigaction (w->signum, &sa, 0);
2772 2982
2983 if (origflags & EVFLAG_NOSIGMASK)
2984 {
2773 sigemptyset (&sa.sa_mask); 2985 sigemptyset (&sa.sa_mask);
2774 sigaddset (&sa.sa_mask, w->signum); 2986 sigaddset (&sa.sa_mask, w->signum);
2775 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 2987 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2988 }
2776#endif 2989#endif
2777 } 2990 }
2778 2991
2779 EV_FREQUENT_CHECK; 2992 EV_FREQUENT_CHECK;
2780} 2993}
… …
2814 } 3027 }
2815 3028
2816 EV_FREQUENT_CHECK; 3029 EV_FREQUENT_CHECK;
2817} 3030}
2818 3031
3032#endif
3033
3034#if EV_CHILD_ENABLE
3035
2819void 3036void
2820ev_child_start (EV_P_ ev_child *w) 3037ev_child_start (EV_P_ ev_child *w)
2821{ 3038{
2822#if EV_MULTIPLICITY 3039#if EV_MULTIPLICITY
2823 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3040 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2826 return; 3043 return;
2827 3044
2828 EV_FREQUENT_CHECK; 3045 EV_FREQUENT_CHECK;
2829 3046
2830 ev_start (EV_A_ (W)w, 1); 3047 ev_start (EV_A_ (W)w, 1);
2831 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3048 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2832 3049
2833 EV_FREQUENT_CHECK; 3050 EV_FREQUENT_CHECK;
2834} 3051}
2835 3052
2836void 3053void
… …
2840 if (expect_false (!ev_is_active (w))) 3057 if (expect_false (!ev_is_active (w)))
2841 return; 3058 return;
2842 3059
2843 EV_FREQUENT_CHECK; 3060 EV_FREQUENT_CHECK;
2844 3061
2845 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3062 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2846 ev_stop (EV_A_ (W)w); 3063 ev_stop (EV_A_ (W)w);
2847 3064
2848 EV_FREQUENT_CHECK; 3065 EV_FREQUENT_CHECK;
2849} 3066}
3067
3068#endif
2850 3069
2851#if EV_STAT_ENABLE 3070#if EV_STAT_ENABLE
2852 3071
2853# ifdef _WIN32 3072# ifdef _WIN32
2854# undef lstat 3073# undef lstat
… …
2915 if (!pend || pend == path) 3134 if (!pend || pend == path)
2916 break; 3135 break;
2917 3136
2918 *pend = 0; 3137 *pend = 0;
2919 w->wd = inotify_add_watch (fs_fd, path, mask); 3138 w->wd = inotify_add_watch (fs_fd, path, mask);
2920 } 3139 }
2921 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3140 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2922 } 3141 }
2923 } 3142 }
2924 3143
2925 if (w->wd >= 0) 3144 if (w->wd >= 0)
2926 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3145 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2927 3146
2928 /* now re-arm timer, if required */ 3147 /* now re-arm timer, if required */
2929 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3148 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2930 ev_timer_again (EV_A_ &w->timer); 3149 ev_timer_again (EV_A_ &w->timer);
2931 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3150 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2939 3158
2940 if (wd < 0) 3159 if (wd < 0)
2941 return; 3160 return;
2942 3161
2943 w->wd = -2; 3162 w->wd = -2;
2944 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3163 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2945 wlist_del (&fs_hash [slot].head, (WL)w); 3164 wlist_del (&fs_hash [slot].head, (WL)w);
2946 3165
2947 /* remove this watcher, if others are watching it, they will rearm */ 3166 /* remove this watcher, if others are watching it, they will rearm */
2948 inotify_rm_watch (fs_fd, wd); 3167 inotify_rm_watch (fs_fd, wd);
2949} 3168}
… …
2951static void noinline 3170static void noinline
2952infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3171infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2953{ 3172{
2954 if (slot < 0) 3173 if (slot < 0)
2955 /* overflow, need to check for all hash slots */ 3174 /* overflow, need to check for all hash slots */
2956 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3175 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2957 infy_wd (EV_A_ slot, wd, ev); 3176 infy_wd (EV_A_ slot, wd, ev);
2958 else 3177 else
2959 { 3178 {
2960 WL w_; 3179 WL w_;
2961 3180
2962 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3181 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2963 { 3182 {
2964 ev_stat *w = (ev_stat *)w_; 3183 ev_stat *w = (ev_stat *)w_;
2965 w_ = w_->next; /* lets us remove this watcher and all before it */ 3184 w_ = w_->next; /* lets us remove this watcher and all before it */
2966 3185
2967 if (w->wd == wd || wd == -1) 3186 if (w->wd == wd || wd == -1)
2968 { 3187 {
2969 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3188 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2970 { 3189 {
2971 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3190 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2972 w->wd = -1; 3191 w->wd = -1;
2973 infy_add (EV_A_ w); /* re-add, no matter what */ 3192 infy_add (EV_A_ w); /* re-add, no matter what */
2974 } 3193 }
2975 3194
2976 stat_timer_cb (EV_A_ &w->timer, 0); 3195 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2993 ofs += sizeof (struct inotify_event) + ev->len; 3212 ofs += sizeof (struct inotify_event) + ev->len;
2994 } 3213 }
2995} 3214}
2996 3215
2997inline_size void 3216inline_size void
2998check_2625 (EV_P) 3217ev_check_2625 (EV_P)
2999{ 3218{
3000 /* kernels < 2.6.25 are borked 3219 /* kernels < 2.6.25 are borked
3001 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3220 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3002 */ 3221 */
3003 struct utsname buf; 3222 if (ev_linux_version () < 0x020619)
3004 int major, minor, micro;
3005
3006 if (uname (&buf))
3007 return;
3008
3009 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
3010 return;
3011
3012 if (major < 2
3013 || (major == 2 && minor < 6)
3014 || (major == 2 && minor == 6 && micro < 25))
3015 return; 3223 return;
3016 3224
3017 fs_2625 = 1; 3225 fs_2625 = 1;
3018} 3226}
3019 3227
… …
3034 if (fs_fd != -2) 3242 if (fs_fd != -2)
3035 return; 3243 return;
3036 3244
3037 fs_fd = -1; 3245 fs_fd = -1;
3038 3246
3039 check_2625 (EV_A); 3247 ev_check_2625 (EV_A);
3040 3248
3041 fs_fd = infy_newfd (); 3249 fs_fd = infy_newfd ();
3042 3250
3043 if (fs_fd >= 0) 3251 if (fs_fd >= 0)
3044 { 3252 {
… …
3069 ev_io_set (&fs_w, fs_fd, EV_READ); 3277 ev_io_set (&fs_w, fs_fd, EV_READ);
3070 ev_io_start (EV_A_ &fs_w); 3278 ev_io_start (EV_A_ &fs_w);
3071 ev_unref (EV_A); 3279 ev_unref (EV_A);
3072 } 3280 }
3073 3281
3074 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3282 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3075 { 3283 {
3076 WL w_ = fs_hash [slot].head; 3284 WL w_ = fs_hash [slot].head;
3077 fs_hash [slot].head = 0; 3285 fs_hash [slot].head = 0;
3078 3286
3079 while (w_) 3287 while (w_)
… …
3254 3462
3255 EV_FREQUENT_CHECK; 3463 EV_FREQUENT_CHECK;
3256} 3464}
3257#endif 3465#endif
3258 3466
3467#if EV_PREPARE_ENABLE
3259void 3468void
3260ev_prepare_start (EV_P_ ev_prepare *w) 3469ev_prepare_start (EV_P_ ev_prepare *w)
3261{ 3470{
3262 if (expect_false (ev_is_active (w))) 3471 if (expect_false (ev_is_active (w)))
3263 return; 3472 return;
… …
3289 3498
3290 ev_stop (EV_A_ (W)w); 3499 ev_stop (EV_A_ (W)w);
3291 3500
3292 EV_FREQUENT_CHECK; 3501 EV_FREQUENT_CHECK;
3293} 3502}
3503#endif
3294 3504
3505#if EV_CHECK_ENABLE
3295void 3506void
3296ev_check_start (EV_P_ ev_check *w) 3507ev_check_start (EV_P_ ev_check *w)
3297{ 3508{
3298 if (expect_false (ev_is_active (w))) 3509 if (expect_false (ev_is_active (w)))
3299 return; 3510 return;
… …
3325 3536
3326 ev_stop (EV_A_ (W)w); 3537 ev_stop (EV_A_ (W)w);
3327 3538
3328 EV_FREQUENT_CHECK; 3539 EV_FREQUENT_CHECK;
3329} 3540}
3541#endif
3330 3542
3331#if EV_EMBED_ENABLE 3543#if EV_EMBED_ENABLE
3332void noinline 3544void noinline
3333ev_embed_sweep (EV_P_ ev_embed *w) 3545ev_embed_sweep (EV_P_ ev_embed *w)
3334{ 3546{
3335 ev_loop (w->other, EVLOOP_NONBLOCK); 3547 ev_run (w->other, EVRUN_NOWAIT);
3336} 3548}
3337 3549
3338static void 3550static void
3339embed_io_cb (EV_P_ ev_io *io, int revents) 3551embed_io_cb (EV_P_ ev_io *io, int revents)
3340{ 3552{
3341 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3553 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3342 3554
3343 if (ev_cb (w)) 3555 if (ev_cb (w))
3344 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3556 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3345 else 3557 else
3346 ev_loop (w->other, EVLOOP_NONBLOCK); 3558 ev_run (w->other, EVRUN_NOWAIT);
3347} 3559}
3348 3560
3349static void 3561static void
3350embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3562embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3351{ 3563{
… …
3355 EV_P = w->other; 3567 EV_P = w->other;
3356 3568
3357 while (fdchangecnt) 3569 while (fdchangecnt)
3358 { 3570 {
3359 fd_reify (EV_A); 3571 fd_reify (EV_A);
3360 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3572 ev_run (EV_A_ EVRUN_NOWAIT);
3361 } 3573 }
3362 } 3574 }
3363} 3575}
3364 3576
3365static void 3577static void
… …
3371 3583
3372 { 3584 {
3373 EV_P = w->other; 3585 EV_P = w->other;
3374 3586
3375 ev_loop_fork (EV_A); 3587 ev_loop_fork (EV_A);
3376 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3588 ev_run (EV_A_ EVRUN_NOWAIT);
3377 } 3589 }
3378 3590
3379 ev_embed_start (EV_A_ w); 3591 ev_embed_start (EV_A_ w);
3380} 3592}
3381 3593
… …
3473 3685
3474 EV_FREQUENT_CHECK; 3686 EV_FREQUENT_CHECK;
3475} 3687}
3476#endif 3688#endif
3477 3689
3478#if EV_ASYNC_ENABLE 3690#if EV_CLEANUP_ENABLE
3479void 3691void
3480ev_async_start (EV_P_ ev_async *w) 3692ev_cleanup_start (EV_P_ ev_cleanup *w)
3481{ 3693{
3482 if (expect_false (ev_is_active (w))) 3694 if (expect_false (ev_is_active (w)))
3483 return; 3695 return;
3696
3697 EV_FREQUENT_CHECK;
3698
3699 ev_start (EV_A_ (W)w, ++cleanupcnt);
3700 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3701 cleanups [cleanupcnt - 1] = w;
3702
3703 /* cleanup watchers should never keep a refcount on the loop */
3704 ev_unref (EV_A);
3705 EV_FREQUENT_CHECK;
3706}
3707
3708void
3709ev_cleanup_stop (EV_P_ ev_cleanup *w)
3710{
3711 clear_pending (EV_A_ (W)w);
3712 if (expect_false (!ev_is_active (w)))
3713 return;
3714
3715 EV_FREQUENT_CHECK;
3716 ev_ref (EV_A);
3717
3718 {
3719 int active = ev_active (w);
3720
3721 cleanups [active - 1] = cleanups [--cleanupcnt];
3722 ev_active (cleanups [active - 1]) = active;
3723 }
3724
3725 ev_stop (EV_A_ (W)w);
3726
3727 EV_FREQUENT_CHECK;
3728}
3729#endif
3730
3731#if EV_ASYNC_ENABLE
3732void
3733ev_async_start (EV_P_ ev_async *w)
3734{
3735 if (expect_false (ev_is_active (w)))
3736 return;
3737
3738 w->sent = 0;
3484 3739
3485 evpipe_init (EV_A); 3740 evpipe_init (EV_A);
3486 3741
3487 EV_FREQUENT_CHECK; 3742 EV_FREQUENT_CHECK;
3488 3743
… …
3566{ 3821{
3567 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3822 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3568 3823
3569 if (expect_false (!once)) 3824 if (expect_false (!once))
3570 { 3825 {
3571 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3826 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3572 return; 3827 return;
3573 } 3828 }
3574 3829
3575 once->cb = cb; 3830 once->cb = cb;
3576 once->arg = arg; 3831 once->arg = arg;
… …
3663 if (types & EV_ASYNC) 3918 if (types & EV_ASYNC)
3664 for (i = asynccnt; i--; ) 3919 for (i = asynccnt; i--; )
3665 cb (EV_A_ EV_ASYNC, asyncs [i]); 3920 cb (EV_A_ EV_ASYNC, asyncs [i]);
3666#endif 3921#endif
3667 3922
3923#if EV_PREPARE_ENABLE
3668 if (types & EV_PREPARE) 3924 if (types & EV_PREPARE)
3669 for (i = preparecnt; i--; ) 3925 for (i = preparecnt; i--; )
3670#if EV_EMBED_ENABLE 3926# if EV_EMBED_ENABLE
3671 if (ev_cb (prepares [i]) != embed_prepare_cb) 3927 if (ev_cb (prepares [i]) != embed_prepare_cb)
3672#endif 3928# endif
3673 cb (EV_A_ EV_PREPARE, prepares [i]); 3929 cb (EV_A_ EV_PREPARE, prepares [i]);
3930#endif
3674 3931
3932#if EV_CHECK_ENABLE
3675 if (types & EV_CHECK) 3933 if (types & EV_CHECK)
3676 for (i = checkcnt; i--; ) 3934 for (i = checkcnt; i--; )
3677 cb (EV_A_ EV_CHECK, checks [i]); 3935 cb (EV_A_ EV_CHECK, checks [i]);
3936#endif
3678 3937
3938#if EV_SIGNAL_ENABLE
3679 if (types & EV_SIGNAL) 3939 if (types & EV_SIGNAL)
3680 for (i = 0; i < EV_NSIG - 1; ++i) 3940 for (i = 0; i < EV_NSIG - 1; ++i)
3681 for (wl = signals [i].head; wl; ) 3941 for (wl = signals [i].head; wl; )
3682 { 3942 {
3683 wn = wl->next; 3943 wn = wl->next;
3684 cb (EV_A_ EV_SIGNAL, wl); 3944 cb (EV_A_ EV_SIGNAL, wl);
3685 wl = wn; 3945 wl = wn;
3686 } 3946 }
3947#endif
3687 3948
3949#if EV_CHILD_ENABLE
3688 if (types & EV_CHILD) 3950 if (types & EV_CHILD)
3689 for (i = EV_PID_HASHSIZE; i--; ) 3951 for (i = (EV_PID_HASHSIZE); i--; )
3690 for (wl = childs [i]; wl; ) 3952 for (wl = childs [i]; wl; )
3691 { 3953 {
3692 wn = wl->next; 3954 wn = wl->next;
3693 cb (EV_A_ EV_CHILD, wl); 3955 cb (EV_A_ EV_CHILD, wl);
3694 wl = wn; 3956 wl = wn;
3695 } 3957 }
3958#endif
3696/* EV_STAT 0x00001000 /* stat data changed */ 3959/* EV_STAT 0x00001000 /* stat data changed */
3697/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3960/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3698} 3961}
3699#endif 3962#endif
3700 3963
3701#if EV_MULTIPLICITY 3964#if EV_MULTIPLICITY
3702 #include "ev_wrap.h" 3965 #include "ev_wrap.h"
3703#endif 3966#endif
3704 3967
3705#ifdef __cplusplus 3968EV_CPP(})
3706}
3707#endif
3708 3969

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