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Comparing libev/ev.c (file contents):
Revision 1.330 by root, Tue Mar 9 08:46:17 2010 UTC vs.
Revision 1.388 by root, Fri Jul 29 12:17:26 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) */
463 465
464#if __GNUC__ >= 4 466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
465# define expect(expr,value) __builtin_expect ((expr),(value)) 467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
466# define noinline __attribute__ ((noinline)) 468
469/* the following are taken from libecb */
470/* ecb.h start */
471
472/* many compilers define _GNUC_ to some versions but then only implement
473 * what their idiot authors think are the "more important" extensions,
474 * causing enourmous grief in return for some better fake benchmark numbers.
475 * or so.
476 * we try to detect these and simply assume they are not gcc - if they have
477 * an issue with that they should have done it right in the first place.
478 */
479#ifndef ECB_GCC_VERSION
480 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
481 #define ECB_GCC_VERSION(major,minor) 0
482 #else
483 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
484 #endif
485#endif
486
487#if __cplusplus
488 #define ecb_inline static inline
489#elif ECB_GCC_VERSION(2,5)
490 #define ecb_inline static __inline__
491#elif ECB_C99
492 #define ecb_inline static inline
467#else 493#else
468# define expect(expr,value) (expr) 494 #define ecb_inline static
469# define noinline
470# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
471# define inline
472# endif 495#endif
496
497#ifndef ECB_MEMORY_FENCE
498 #if ECB_GCC_VERSION(2,5)
499 #if __x86
500 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
501 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
502 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */
503 #elif __amd64
504 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
505 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
506 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence")
507 #endif
473#endif 508 #endif
509#endif
474 510
511#ifndef ECB_MEMORY_FENCE
512 #if ECB_GCC_VERSION(4,4)
513 #define ECB_MEMORY_FENCE __sync_synchronize ()
514 #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
515 #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
516 #elif _MSC_VER >= 1400 && 0 /* TODO: only true when using volatiles */
517 #define ECB_MEMORY_FENCE do { } while (0)
518 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
519 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
520 #elif defined(_WIN32)
521 #include <WinNT.h>
522 #define ECB_MEMORY_FENCE MemoryBarrier ()
523 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
524 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
525 #endif
526#endif
527
528#ifndef ECB_MEMORY_FENCE
529 #include <pthread.h>
530
531 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
532 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
533 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
534 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
535#endif
536
537#if ECB_GCC_VERSION(3,1)
538 #define ecb_attribute(attrlist) __attribute__(attrlist)
539 #define ecb_is_constant(expr) __builtin_constant_p (expr)
540 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
541 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
542#else
543 #define ecb_attribute(attrlist)
544 #define ecb_is_constant(expr) 0
545 #define ecb_expect(expr,value) (expr)
546 #define ecb_prefetch(addr,rw,locality)
547#endif
548
549#define ecb_noinline ecb_attribute ((__noinline__))
550#define ecb_noreturn ecb_attribute ((__noreturn__))
551#define ecb_unused ecb_attribute ((__unused__))
552#define ecb_const ecb_attribute ((__const__))
553#define ecb_pure ecb_attribute ((__pure__))
554
555#if ECB_GCC_VERSION(4,3)
556 #define ecb_artificial ecb_attribute ((__artificial__))
557 #define ecb_hot ecb_attribute ((__hot__))
558 #define ecb_cold ecb_attribute ((__cold__))
559#else
560 #define ecb_artificial
561 #define ecb_hot
562 #define ecb_cold
563#endif
564
565/* put around conditional expressions if you are very sure that the */
566/* expression is mostly true or mostly false. note that these return */
567/* booleans, not the expression. */
475#define expect_false(expr) expect ((expr) != 0, 0) 568#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
476#define expect_true(expr) expect ((expr) != 0, 1) 569#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
570/* ecb.h end */
571
572#define expect_false(cond) ecb_expect_false (cond)
573#define expect_true(cond) ecb_expect_true (cond)
574#define noinline ecb_noinline
575
477#define inline_size static inline 576#define inline_size ecb_inline
478 577
479#if EV_MINIMAL 578#if EV_FEATURE_CODE
579# define inline_speed ecb_inline
580#else
480# define inline_speed static noinline 581# define inline_speed static noinline
481#else
482# define inline_speed static inline
483#endif 582#endif
484 583
485#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 584#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
486 585
487#if EV_MINPRI == EV_MAXPRI 586#if EV_MINPRI == EV_MAXPRI
… …
500#define ev_active(w) ((W)(w))->active 599#define ev_active(w) ((W)(w))->active
501#define ev_at(w) ((WT)(w))->at 600#define ev_at(w) ((WT)(w))->at
502 601
503#if EV_USE_REALTIME 602#if EV_USE_REALTIME
504/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 603/* 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 */ 604/* giving it a reasonably high chance of working on typical architectures */
506static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 605static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
507#endif 606#endif
508 607
509#if EV_USE_MONOTONIC 608#if EV_USE_MONOTONIC
510static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 609static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
524# include "ev_win32.c" 623# include "ev_win32.c"
525#endif 624#endif
526 625
527/*****************************************************************************/ 626/*****************************************************************************/
528 627
628/* define a suitable floor function (only used by periodics atm) */
629
630#if EV_USE_FLOOR
631# include <math.h>
632# define ev_floor(v) floor (v)
633#else
634
635#include <float.h>
636
637/* a floor() replacement function, should be independent of ev_tstamp type */
638static ev_tstamp noinline
639ev_floor (ev_tstamp v)
640{
641 /* the choice of shift factor is not terribly important */
642#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
643 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
644#else
645 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
646#endif
647
648 /* argument too large for an unsigned long? */
649 if (expect_false (v >= shift))
650 {
651 ev_tstamp f;
652
653 if (v == v - 1.)
654 return v; /* very large number */
655
656 f = shift * ev_floor (v * (1. / shift));
657 return f + ev_floor (v - f);
658 }
659
660 /* special treatment for negative args? */
661 if (expect_false (v < 0.))
662 {
663 ev_tstamp f = -ev_floor (-v);
664
665 return f - (f == v ? 0 : 1);
666 }
667
668 /* fits into an unsigned long */
669 return (unsigned long)v;
670}
671
672#endif
673
674/*****************************************************************************/
675
676#ifdef __linux
677# include <sys/utsname.h>
678#endif
679
680static unsigned int noinline ecb_cold
681ev_linux_version (void)
682{
683#ifdef __linux
684 unsigned int v = 0;
685 struct utsname buf;
686 int i;
687 char *p = buf.release;
688
689 if (uname (&buf))
690 return 0;
691
692 for (i = 3+1; --i; )
693 {
694 unsigned int c = 0;
695
696 for (;;)
697 {
698 if (*p >= '0' && *p <= '9')
699 c = c * 10 + *p++ - '0';
700 else
701 {
702 p += *p == '.';
703 break;
704 }
705 }
706
707 v = (v << 8) | c;
708 }
709
710 return v;
711#else
712 return 0;
713#endif
714}
715
716/*****************************************************************************/
717
718#if EV_AVOID_STDIO
719static void noinline ecb_cold
720ev_printerr (const char *msg)
721{
722 write (STDERR_FILENO, msg, strlen (msg));
723}
724#endif
725
529static void (*syserr_cb)(const char *msg); 726static void (*syserr_cb)(const char *msg);
530 727
531void 728void ecb_cold
532ev_set_syserr_cb (void (*cb)(const char *msg)) 729ev_set_syserr_cb (void (*cb)(const char *msg))
533{ 730{
534 syserr_cb = cb; 731 syserr_cb = cb;
535} 732}
536 733
537static void noinline 734static void noinline ecb_cold
538ev_syserr (const char *msg) 735ev_syserr (const char *msg)
539{ 736{
540 if (!msg) 737 if (!msg)
541 msg = "(libev) system error"; 738 msg = "(libev) system error";
542 739
543 if (syserr_cb) 740 if (syserr_cb)
544 syserr_cb (msg); 741 syserr_cb (msg);
545 else 742 else
546 { 743 {
547#if EV_AVOID_STDIO 744#if EV_AVOID_STDIO
548 write (STDERR_FILENO, msg, strlen (msg)); 745 ev_printerr (msg);
549 write (STDERR_FILENO, ": ", 2); 746 ev_printerr (": ");
550 msg = strerror (errno); 747 ev_printerr (strerror (errno));
551 write (STDERR_FILENO, msg, strlen (msg)); 748 ev_printerr ("\n");
552 write (STDERR_FILENO, "\n", 1);
553#else 749#else
554 perror (msg); 750 perror (msg);
555#endif 751#endif
556 abort (); 752 abort ();
557 } 753 }
558} 754}
559 755
560static void * 756static void *
561ev_realloc_emul (void *ptr, long size) 757ev_realloc_emul (void *ptr, long size)
562{ 758{
759#if __GLIBC__
760 return realloc (ptr, size);
761#else
563 /* some systems, notably openbsd and darwin, fail to properly 762 /* some systems, notably openbsd and darwin, fail to properly
564 * implement realloc (x, 0) (as required by both ansi c-98 and 763 * implement realloc (x, 0) (as required by both ansi c-89 and
565 * the single unix specification, so work around them here. 764 * the single unix specification, so work around them here.
566 */ 765 */
567 766
568 if (size) 767 if (size)
569 return realloc (ptr, size); 768 return realloc (ptr, size);
570 769
571 free (ptr); 770 free (ptr);
572 return 0; 771 return 0;
772#endif
573} 773}
574 774
575static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 775static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
576 776
577void 777void ecb_cold
578ev_set_allocator (void *(*cb)(void *ptr, long size)) 778ev_set_allocator (void *(*cb)(void *ptr, long size))
579{ 779{
580 alloc = cb; 780 alloc = cb;
581} 781}
582 782
… …
586 ptr = alloc (ptr, size); 786 ptr = alloc (ptr, size);
587 787
588 if (!ptr && size) 788 if (!ptr && size)
589 { 789 {
590#if EV_AVOID_STDIO 790#if EV_AVOID_STDIO
591 write (STDERR_FILENO, "libev: memory allocation failed, aborting.", 791 ev_printerr ("(libev) memory allocation failed, aborting.\n");
592 sizeof ("libev: memory allocation failed, aborting.") - 1);
593#else 792#else
594 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 793 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
595#endif 794#endif
596 abort (); 795 abort ();
597 } 796 }
598 797
599 return ptr; 798 return ptr;
… …
616 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 815 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
617 unsigned char unused; 816 unsigned char unused;
618#if EV_USE_EPOLL 817#if EV_USE_EPOLL
619 unsigned int egen; /* generation counter to counter epoll bugs */ 818 unsigned int egen; /* generation counter to counter epoll bugs */
620#endif 819#endif
621#if EV_SELECT_IS_WINSOCKET 820#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
622 SOCKET handle; 821 SOCKET handle;
822#endif
823#if EV_USE_IOCP
824 OVERLAPPED or, ow;
623#endif 825#endif
624} ANFD; 826} ANFD;
625 827
626/* stores the pending event set for a given watcher */ 828/* stores the pending event set for a given watcher */
627typedef struct 829typedef struct
… …
682 884
683 static int ev_default_loop_ptr; 885 static int ev_default_loop_ptr;
684 886
685#endif 887#endif
686 888
687#if EV_MINIMAL < 2 889#if EV_FEATURE_API
688# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 890# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
689# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 891# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
690# define EV_INVOKE_PENDING invoke_cb (EV_A) 892# define EV_INVOKE_PENDING invoke_cb (EV_A)
691#else 893#else
692# define EV_RELEASE_CB (void)0 894# define EV_RELEASE_CB (void)0
693# define EV_ACQUIRE_CB (void)0 895# define EV_ACQUIRE_CB (void)0
694# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 896# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
695#endif 897#endif
696 898
697#define EVUNLOOP_RECURSE 0x80 899#define EVBREAK_RECURSE 0x80
698 900
699/*****************************************************************************/ 901/*****************************************************************************/
700 902
701#ifndef EV_HAVE_EV_TIME 903#ifndef EV_HAVE_EV_TIME
702ev_tstamp 904ev_tstamp
… …
746 if (delay > 0.) 948 if (delay > 0.)
747 { 949 {
748#if EV_USE_NANOSLEEP 950#if EV_USE_NANOSLEEP
749 struct timespec ts; 951 struct timespec ts;
750 952
751 ts.tv_sec = (time_t)delay; 953 EV_TS_SET (ts, delay);
752 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
753
754 nanosleep (&ts, 0); 954 nanosleep (&ts, 0);
755#elif defined(_WIN32) 955#elif defined(_WIN32)
756 Sleep ((unsigned long)(delay * 1e3)); 956 Sleep ((unsigned long)(delay * 1e3));
757#else 957#else
758 struct timeval tv; 958 struct timeval tv;
759 959
760 tv.tv_sec = (time_t)delay;
761 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
762
763 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 960 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
764 /* something not guaranteed by newer posix versions, but guaranteed */ 961 /* something not guaranteed by newer posix versions, but guaranteed */
765 /* by older ones */ 962 /* by older ones */
963 EV_TV_SET (tv, delay);
766 select (0, 0, 0, 0, &tv); 964 select (0, 0, 0, 0, &tv);
767#endif 965#endif
768 } 966 }
769} 967}
770 968
771/*****************************************************************************/ 969/*****************************************************************************/
772 970
773#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 971#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
774 972
775/* find a suitable new size for the given array, */ 973/* find a suitable new size for the given array, */
776/* hopefully by rounding to a ncie-to-malloc size */ 974/* hopefully by rounding to a nice-to-malloc size */
777inline_size int 975inline_size int
778array_nextsize (int elem, int cur, int cnt) 976array_nextsize (int elem, int cur, int cnt)
779{ 977{
780 int ncur = cur + 1; 978 int ncur = cur + 1;
781 979
… …
793 } 991 }
794 992
795 return ncur; 993 return ncur;
796} 994}
797 995
798static noinline void * 996static void * noinline ecb_cold
799array_realloc (int elem, void *base, int *cur, int cnt) 997array_realloc (int elem, void *base, int *cur, int cnt)
800{ 998{
801 *cur = array_nextsize (elem, *cur, cnt); 999 *cur = array_nextsize (elem, *cur, cnt);
802 return ev_realloc (base, elem * *cur); 1000 return ev_realloc (base, elem * *cur);
803} 1001}
… …
806 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1004 memset ((void *)(base), 0, sizeof (*(base)) * (count))
807 1005
808#define array_needsize(type,base,cur,cnt,init) \ 1006#define array_needsize(type,base,cur,cnt,init) \
809 if (expect_false ((cnt) > (cur))) \ 1007 if (expect_false ((cnt) > (cur))) \
810 { \ 1008 { \
811 int ocur_ = (cur); \ 1009 int ecb_unused ocur_ = (cur); \
812 (base) = (type *)array_realloc \ 1010 (base) = (type *)array_realloc \
813 (sizeof (type), (base), &(cur), (cnt)); \ 1011 (sizeof (type), (base), &(cur), (cnt)); \
814 init ((base) + (ocur_), (cur) - ocur_); \ 1012 init ((base) + (ocur_), (cur) - ocur_); \
815 } 1013 }
816 1014
… …
877} 1075}
878 1076
879/*****************************************************************************/ 1077/*****************************************************************************/
880 1078
881inline_speed void 1079inline_speed void
882fd_event_nc (EV_P_ int fd, int revents) 1080fd_event_nocheck (EV_P_ int fd, int revents)
883{ 1081{
884 ANFD *anfd = anfds + fd; 1082 ANFD *anfd = anfds + fd;
885 ev_io *w; 1083 ev_io *w;
886 1084
887 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1085 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
899fd_event (EV_P_ int fd, int revents) 1097fd_event (EV_P_ int fd, int revents)
900{ 1098{
901 ANFD *anfd = anfds + fd; 1099 ANFD *anfd = anfds + fd;
902 1100
903 if (expect_true (!anfd->reify)) 1101 if (expect_true (!anfd->reify))
904 fd_event_nc (EV_A_ fd, revents); 1102 fd_event_nocheck (EV_A_ fd, revents);
905} 1103}
906 1104
907void 1105void
908ev_feed_fd_event (EV_P_ int fd, int revents) 1106ev_feed_fd_event (EV_P_ int fd, int revents)
909{ 1107{
910 if (fd >= 0 && fd < anfdmax) 1108 if (fd >= 0 && fd < anfdmax)
911 fd_event_nc (EV_A_ fd, revents); 1109 fd_event_nocheck (EV_A_ fd, revents);
912} 1110}
913 1111
914/* make sure the external fd watch events are in-sync */ 1112/* make sure the external fd watch events are in-sync */
915/* with the kernel/libev internal state */ 1113/* with the kernel/libev internal state */
916inline_size void 1114inline_size void
917fd_reify (EV_P) 1115fd_reify (EV_P)
918{ 1116{
919 int i; 1117 int i;
920 1118
1119#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1120 for (i = 0; i < fdchangecnt; ++i)
1121 {
1122 int fd = fdchanges [i];
1123 ANFD *anfd = anfds + fd;
1124
1125 if (anfd->reify & EV__IOFDSET && anfd->head)
1126 {
1127 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1128
1129 if (handle != anfd->handle)
1130 {
1131 unsigned long arg;
1132
1133 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1134
1135 /* handle changed, but fd didn't - we need to do it in two steps */
1136 backend_modify (EV_A_ fd, anfd->events, 0);
1137 anfd->events = 0;
1138 anfd->handle = handle;
1139 }
1140 }
1141 }
1142#endif
1143
921 for (i = 0; i < fdchangecnt; ++i) 1144 for (i = 0; i < fdchangecnt; ++i)
922 { 1145 {
923 int fd = fdchanges [i]; 1146 int fd = fdchanges [i];
924 ANFD *anfd = anfds + fd; 1147 ANFD *anfd = anfds + fd;
925 ev_io *w; 1148 ev_io *w;
926 1149
927 unsigned char events = 0; 1150 unsigned char o_events = anfd->events;
1151 unsigned char o_reify = anfd->reify;
928 1152
929 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1153 anfd->reify = 0;
930 events |= (unsigned char)w->events;
931 1154
932#if EV_SELECT_IS_WINSOCKET 1155 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
933 if (events)
934 { 1156 {
935 unsigned long arg; 1157 anfd->events = 0;
936 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1158
937 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1159 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1160 anfd->events |= (unsigned char)w->events;
1161
1162 if (o_events != anfd->events)
1163 o_reify = EV__IOFDSET; /* actually |= */
938 } 1164 }
939#endif
940 1165
941 { 1166 if (o_reify & EV__IOFDSET)
942 unsigned char o_events = anfd->events;
943 unsigned char o_reify = anfd->reify;
944
945 anfd->reify = 0;
946 anfd->events = events;
947
948 if (o_events != events || o_reify & EV__IOFDSET)
949 backend_modify (EV_A_ fd, o_events, events); 1167 backend_modify (EV_A_ fd, o_events, anfd->events);
950 }
951 } 1168 }
952 1169
953 fdchangecnt = 0; 1170 fdchangecnt = 0;
954} 1171}
955 1172
… …
967 fdchanges [fdchangecnt - 1] = fd; 1184 fdchanges [fdchangecnt - 1] = fd;
968 } 1185 }
969} 1186}
970 1187
971/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1188/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
972inline_speed void 1189inline_speed void ecb_cold
973fd_kill (EV_P_ int fd) 1190fd_kill (EV_P_ int fd)
974{ 1191{
975 ev_io *w; 1192 ev_io *w;
976 1193
977 while ((w = (ev_io *)anfds [fd].head)) 1194 while ((w = (ev_io *)anfds [fd].head))
… …
979 ev_io_stop (EV_A_ w); 1196 ev_io_stop (EV_A_ w);
980 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1197 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
981 } 1198 }
982} 1199}
983 1200
984/* check whether the given fd is atcually valid, for error recovery */ 1201/* check whether the given fd is actually valid, for error recovery */
985inline_size int 1202inline_size int ecb_cold
986fd_valid (int fd) 1203fd_valid (int fd)
987{ 1204{
988#ifdef _WIN32 1205#ifdef _WIN32
989 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1206 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
990#else 1207#else
991 return fcntl (fd, F_GETFD) != -1; 1208 return fcntl (fd, F_GETFD) != -1;
992#endif 1209#endif
993} 1210}
994 1211
995/* called on EBADF to verify fds */ 1212/* called on EBADF to verify fds */
996static void noinline 1213static void noinline ecb_cold
997fd_ebadf (EV_P) 1214fd_ebadf (EV_P)
998{ 1215{
999 int fd; 1216 int fd;
1000 1217
1001 for (fd = 0; fd < anfdmax; ++fd) 1218 for (fd = 0; fd < anfdmax; ++fd)
… …
1003 if (!fd_valid (fd) && errno == EBADF) 1220 if (!fd_valid (fd) && errno == EBADF)
1004 fd_kill (EV_A_ fd); 1221 fd_kill (EV_A_ fd);
1005} 1222}
1006 1223
1007/* called on ENOMEM in select/poll to kill some fds and retry */ 1224/* called on ENOMEM in select/poll to kill some fds and retry */
1008static void noinline 1225static void noinline ecb_cold
1009fd_enomem (EV_P) 1226fd_enomem (EV_P)
1010{ 1227{
1011 int fd; 1228 int fd;
1012 1229
1013 for (fd = anfdmax; fd--; ) 1230 for (fd = anfdmax; fd--; )
… …
1031 anfds [fd].emask = 0; 1248 anfds [fd].emask = 0;
1032 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1249 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1033 } 1250 }
1034} 1251}
1035 1252
1253/* used to prepare libev internal fd's */
1254/* this is not fork-safe */
1255inline_speed void
1256fd_intern (int fd)
1257{
1258#ifdef _WIN32
1259 unsigned long arg = 1;
1260 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1261#else
1262 fcntl (fd, F_SETFD, FD_CLOEXEC);
1263 fcntl (fd, F_SETFL, O_NONBLOCK);
1264#endif
1265}
1266
1036/*****************************************************************************/ 1267/*****************************************************************************/
1037 1268
1038/* 1269/*
1039 * the heap functions want a real array index. array index 0 uis guaranteed to not 1270 * the heap functions want a real array index. array index 0 is guaranteed to not
1040 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1271 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1041 * the branching factor of the d-tree. 1272 * the branching factor of the d-tree.
1042 */ 1273 */
1043 1274
1044/* 1275/*
… …
1192 1423
1193static ANSIG signals [EV_NSIG - 1]; 1424static ANSIG signals [EV_NSIG - 1];
1194 1425
1195/*****************************************************************************/ 1426/*****************************************************************************/
1196 1427
1197/* used to prepare libev internal fd's */ 1428#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1198/* this is not fork-safe */
1199inline_speed void
1200fd_intern (int fd)
1201{
1202#ifdef _WIN32
1203 unsigned long arg = 1;
1204 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1205#else
1206 fcntl (fd, F_SETFD, FD_CLOEXEC);
1207 fcntl (fd, F_SETFL, O_NONBLOCK);
1208#endif
1209}
1210 1429
1211static void noinline 1430static void noinline ecb_cold
1212evpipe_init (EV_P) 1431evpipe_init (EV_P)
1213{ 1432{
1214 if (!ev_is_active (&pipe_w)) 1433 if (!ev_is_active (&pipe_w))
1215 { 1434 {
1216#if EV_USE_EVENTFD 1435# if EV_USE_EVENTFD
1217 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1436 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1218 if (evfd < 0 && errno == EINVAL) 1437 if (evfd < 0 && errno == EINVAL)
1219 evfd = eventfd (0, 0); 1438 evfd = eventfd (0, 0);
1220 1439
1221 if (evfd >= 0) 1440 if (evfd >= 0)
… …
1223 evpipe [0] = -1; 1442 evpipe [0] = -1;
1224 fd_intern (evfd); /* doing it twice doesn't hurt */ 1443 fd_intern (evfd); /* doing it twice doesn't hurt */
1225 ev_io_set (&pipe_w, evfd, EV_READ); 1444 ev_io_set (&pipe_w, evfd, EV_READ);
1226 } 1445 }
1227 else 1446 else
1228#endif 1447# endif
1229 { 1448 {
1230 while (pipe (evpipe)) 1449 while (pipe (evpipe))
1231 ev_syserr ("(libev) error creating signal/async pipe"); 1450 ev_syserr ("(libev) error creating signal/async pipe");
1232 1451
1233 fd_intern (evpipe [0]); 1452 fd_intern (evpipe [0]);
… …
1238 ev_io_start (EV_A_ &pipe_w); 1457 ev_io_start (EV_A_ &pipe_w);
1239 ev_unref (EV_A); /* watcher should not keep loop alive */ 1458 ev_unref (EV_A); /* watcher should not keep loop alive */
1240 } 1459 }
1241} 1460}
1242 1461
1243inline_size void 1462inline_speed void
1244evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1463evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1245{ 1464{
1246 if (!*flag) 1465 if (expect_true (*flag))
1466 return;
1467
1468 *flag = 1;
1469
1470 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1471
1472 pipe_write_skipped = 1;
1473
1474 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1475
1476 if (pipe_write_wanted)
1247 { 1477 {
1478 int old_errno;
1479
1480 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1481
1248 int old_errno = errno; /* save errno because write might clobber it */ 1482 old_errno = errno; /* save errno because write will clobber it */
1249
1250 *flag = 1;
1251 1483
1252#if EV_USE_EVENTFD 1484#if EV_USE_EVENTFD
1253 if (evfd >= 0) 1485 if (evfd >= 0)
1254 { 1486 {
1255 uint64_t counter = 1; 1487 uint64_t counter = 1;
1256 write (evfd, &counter, sizeof (uint64_t)); 1488 write (evfd, &counter, sizeof (uint64_t));
1257 } 1489 }
1258 else 1490 else
1259#endif 1491#endif
1492 {
1493 /* win32 people keep sending patches that change this write() to send() */
1494 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1495 /* so when you think this write should be a send instead, please find out */
1496 /* where your send() is from - it's definitely not the microsoft send, and */
1497 /* tell me. thank you. */
1260 write (evpipe [1], &old_errno, 1); 1498 write (evpipe [1], &(evpipe [1]), 1);
1499 }
1261 1500
1262 errno = old_errno; 1501 errno = old_errno;
1263 } 1502 }
1264} 1503}
1265 1504
… …
1268static void 1507static void
1269pipecb (EV_P_ ev_io *iow, int revents) 1508pipecb (EV_P_ ev_io *iow, int revents)
1270{ 1509{
1271 int i; 1510 int i;
1272 1511
1512 if (revents & EV_READ)
1513 {
1273#if EV_USE_EVENTFD 1514#if EV_USE_EVENTFD
1274 if (evfd >= 0) 1515 if (evfd >= 0)
1275 { 1516 {
1276 uint64_t counter; 1517 uint64_t counter;
1277 read (evfd, &counter, sizeof (uint64_t)); 1518 read (evfd, &counter, sizeof (uint64_t));
1278 } 1519 }
1279 else 1520 else
1280#endif 1521#endif
1281 { 1522 {
1282 char dummy; 1523 char dummy;
1524 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1283 read (evpipe [0], &dummy, 1); 1525 read (evpipe [0], &dummy, 1);
1526 }
1284 } 1527 }
1285 1528
1529 pipe_write_skipped = 0;
1530
1531#if EV_SIGNAL_ENABLE
1286 if (sig_pending) 1532 if (sig_pending)
1287 { 1533 {
1288 sig_pending = 0; 1534 sig_pending = 0;
1289 1535
1290 for (i = EV_NSIG - 1; i--; ) 1536 for (i = EV_NSIG - 1; i--; )
1291 if (expect_false (signals [i].pending)) 1537 if (expect_false (signals [i].pending))
1292 ev_feed_signal_event (EV_A_ i + 1); 1538 ev_feed_signal_event (EV_A_ i + 1);
1293 } 1539 }
1540#endif
1294 1541
1295#if EV_ASYNC_ENABLE 1542#if EV_ASYNC_ENABLE
1296 if (async_pending) 1543 if (async_pending)
1297 { 1544 {
1298 async_pending = 0; 1545 async_pending = 0;
… …
1307#endif 1554#endif
1308} 1555}
1309 1556
1310/*****************************************************************************/ 1557/*****************************************************************************/
1311 1558
1559void
1560ev_feed_signal (int signum)
1561{
1562#if EV_MULTIPLICITY
1563 EV_P = signals [signum - 1].loop;
1564
1565 if (!EV_A)
1566 return;
1567#endif
1568
1569 if (!ev_active (&pipe_w))
1570 return;
1571
1572 signals [signum - 1].pending = 1;
1573 evpipe_write (EV_A_ &sig_pending);
1574}
1575
1312static void 1576static void
1313ev_sighandler (int signum) 1577ev_sighandler (int signum)
1314{ 1578{
1315#if EV_MULTIPLICITY
1316 EV_P = signals [signum - 1].loop;
1317#endif
1318
1319#ifdef _WIN32 1579#ifdef _WIN32
1320 signal (signum, ev_sighandler); 1580 signal (signum, ev_sighandler);
1321#endif 1581#endif
1322 1582
1323 signals [signum - 1].pending = 1; 1583 ev_feed_signal (signum);
1324 evpipe_write (EV_A_ &sig_pending);
1325} 1584}
1326 1585
1327void noinline 1586void noinline
1328ev_feed_signal_event (EV_P_ int signum) 1587ev_feed_signal_event (EV_P_ int signum)
1329{ 1588{
… …
1366 break; 1625 break;
1367 } 1626 }
1368} 1627}
1369#endif 1628#endif
1370 1629
1630#endif
1631
1371/*****************************************************************************/ 1632/*****************************************************************************/
1372 1633
1634#if EV_CHILD_ENABLE
1373static WL childs [EV_PID_HASHSIZE]; 1635static WL childs [EV_PID_HASHSIZE];
1374
1375#ifndef _WIN32
1376 1636
1377static ev_signal childev; 1637static ev_signal childev;
1378 1638
1379#ifndef WIFCONTINUED 1639#ifndef WIFCONTINUED
1380# define WIFCONTINUED(status) 0 1640# define WIFCONTINUED(status) 0
… …
1385child_reap (EV_P_ int chain, int pid, int status) 1645child_reap (EV_P_ int chain, int pid, int status)
1386{ 1646{
1387 ev_child *w; 1647 ev_child *w;
1388 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1648 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1389 1649
1390 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1650 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1391 { 1651 {
1392 if ((w->pid == pid || !w->pid) 1652 if ((w->pid == pid || !w->pid)
1393 && (!traced || (w->flags & 1))) 1653 && (!traced || (w->flags & 1)))
1394 { 1654 {
1395 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1655 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1420 /* make sure we are called again until all children have been reaped */ 1680 /* make sure we are called again until all children have been reaped */
1421 /* we need to do it this way so that the callback gets called before we continue */ 1681 /* we need to do it this way so that the callback gets called before we continue */
1422 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1682 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1423 1683
1424 child_reap (EV_A_ pid, pid, status); 1684 child_reap (EV_A_ pid, pid, status);
1425 if (EV_PID_HASHSIZE > 1) 1685 if ((EV_PID_HASHSIZE) > 1)
1426 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1686 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1427} 1687}
1428 1688
1429#endif 1689#endif
1430 1690
1431/*****************************************************************************/ 1691/*****************************************************************************/
1432 1692
1693#if EV_USE_IOCP
1694# include "ev_iocp.c"
1695#endif
1433#if EV_USE_PORT 1696#if EV_USE_PORT
1434# include "ev_port.c" 1697# include "ev_port.c"
1435#endif 1698#endif
1436#if EV_USE_KQUEUE 1699#if EV_USE_KQUEUE
1437# include "ev_kqueue.c" 1700# include "ev_kqueue.c"
… …
1444#endif 1707#endif
1445#if EV_USE_SELECT 1708#if EV_USE_SELECT
1446# include "ev_select.c" 1709# include "ev_select.c"
1447#endif 1710#endif
1448 1711
1449int 1712int ecb_cold
1450ev_version_major (void) 1713ev_version_major (void)
1451{ 1714{
1452 return EV_VERSION_MAJOR; 1715 return EV_VERSION_MAJOR;
1453} 1716}
1454 1717
1455int 1718int ecb_cold
1456ev_version_minor (void) 1719ev_version_minor (void)
1457{ 1720{
1458 return EV_VERSION_MINOR; 1721 return EV_VERSION_MINOR;
1459} 1722}
1460 1723
1461/* return true if we are running with elevated privileges and should ignore env variables */ 1724/* return true if we are running with elevated privileges and should ignore env variables */
1462int inline_size 1725int inline_size ecb_cold
1463enable_secure (void) 1726enable_secure (void)
1464{ 1727{
1465#ifdef _WIN32 1728#ifdef _WIN32
1466 return 0; 1729 return 0;
1467#else 1730#else
1468 return getuid () != geteuid () 1731 return getuid () != geteuid ()
1469 || getgid () != getegid (); 1732 || getgid () != getegid ();
1470#endif 1733#endif
1471} 1734}
1472 1735
1473unsigned int 1736unsigned int ecb_cold
1474ev_supported_backends (void) 1737ev_supported_backends (void)
1475{ 1738{
1476 unsigned int flags = 0; 1739 unsigned int flags = 0;
1477 1740
1478 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1741 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1482 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1745 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1483 1746
1484 return flags; 1747 return flags;
1485} 1748}
1486 1749
1487unsigned int 1750unsigned int ecb_cold
1488ev_recommended_backends (void) 1751ev_recommended_backends (void)
1489{ 1752{
1490 unsigned int flags = ev_supported_backends (); 1753 unsigned int flags = ev_supported_backends ();
1491 1754
1492#ifndef __NetBSD__ 1755#ifndef __NetBSD__
… …
1497#ifdef __APPLE__ 1760#ifdef __APPLE__
1498 /* only select works correctly on that "unix-certified" platform */ 1761 /* only select works correctly on that "unix-certified" platform */
1499 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1762 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1500 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1763 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1501#endif 1764#endif
1765#ifdef __FreeBSD__
1766 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1767#endif
1502 1768
1503 return flags; 1769 return flags;
1504} 1770}
1505 1771
1506unsigned int 1772unsigned int ecb_cold
1507ev_embeddable_backends (void) 1773ev_embeddable_backends (void)
1508{ 1774{
1509 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1775 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1510 1776
1511 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1777 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1512 /* please fix it and tell me how to detect the fix */ 1778 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1513 flags &= ~EVBACKEND_EPOLL; 1779 flags &= ~EVBACKEND_EPOLL;
1514 1780
1515 return flags; 1781 return flags;
1516} 1782}
1517 1783
1518unsigned int 1784unsigned int
1519ev_backend (EV_P) 1785ev_backend (EV_P)
1520{ 1786{
1521 return backend; 1787 return backend;
1522} 1788}
1523 1789
1524#if EV_MINIMAL < 2 1790#if EV_FEATURE_API
1525unsigned int 1791unsigned int
1526ev_loop_count (EV_P) 1792ev_iteration (EV_P)
1527{ 1793{
1528 return loop_count; 1794 return loop_count;
1529} 1795}
1530 1796
1531unsigned int 1797unsigned int
1532ev_loop_depth (EV_P) 1798ev_depth (EV_P)
1533{ 1799{
1534 return loop_depth; 1800 return loop_depth;
1535} 1801}
1536 1802
1537void 1803void
… …
1556ev_userdata (EV_P) 1822ev_userdata (EV_P)
1557{ 1823{
1558 return userdata; 1824 return userdata;
1559} 1825}
1560 1826
1827void
1561void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 1828ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1562{ 1829{
1563 invoke_cb = invoke_pending_cb; 1830 invoke_cb = invoke_pending_cb;
1564} 1831}
1565 1832
1833void
1566void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 1834ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1567{ 1835{
1568 release_cb = release; 1836 release_cb = release;
1569 acquire_cb = acquire; 1837 acquire_cb = acquire;
1570} 1838}
1571#endif 1839#endif
1572 1840
1573/* initialise a loop structure, must be zero-initialised */ 1841/* initialise a loop structure, must be zero-initialised */
1574static void noinline 1842static void noinline ecb_cold
1575loop_init (EV_P_ unsigned int flags) 1843loop_init (EV_P_ unsigned int flags)
1576{ 1844{
1577 if (!backend) 1845 if (!backend)
1578 { 1846 {
1847 origflags = flags;
1848
1579#if EV_USE_REALTIME 1849#if EV_USE_REALTIME
1580 if (!have_realtime) 1850 if (!have_realtime)
1581 { 1851 {
1582 struct timespec ts; 1852 struct timespec ts;
1583 1853
… …
1605 if (!(flags & EVFLAG_NOENV) 1875 if (!(flags & EVFLAG_NOENV)
1606 && !enable_secure () 1876 && !enable_secure ()
1607 && getenv ("LIBEV_FLAGS")) 1877 && getenv ("LIBEV_FLAGS"))
1608 flags = atoi (getenv ("LIBEV_FLAGS")); 1878 flags = atoi (getenv ("LIBEV_FLAGS"));
1609 1879
1610 ev_rt_now = ev_time (); 1880 ev_rt_now = ev_time ();
1611 mn_now = get_clock (); 1881 mn_now = get_clock ();
1612 now_floor = mn_now; 1882 now_floor = mn_now;
1613 rtmn_diff = ev_rt_now - mn_now; 1883 rtmn_diff = ev_rt_now - mn_now;
1614#if EV_MINIMAL < 2 1884#if EV_FEATURE_API
1615 invoke_cb = ev_invoke_pending; 1885 invoke_cb = ev_invoke_pending;
1616#endif 1886#endif
1617 1887
1618 io_blocktime = 0.; 1888 io_blocktime = 0.;
1619 timeout_blocktime = 0.; 1889 timeout_blocktime = 0.;
1620 backend = 0; 1890 backend = 0;
1621 backend_fd = -1; 1891 backend_fd = -1;
1622 sig_pending = 0; 1892 sig_pending = 0;
1623#if EV_ASYNC_ENABLE 1893#if EV_ASYNC_ENABLE
1624 async_pending = 0; 1894 async_pending = 0;
1625#endif 1895#endif
1896 pipe_write_skipped = 0;
1897 pipe_write_wanted = 0;
1626#if EV_USE_INOTIFY 1898#if EV_USE_INOTIFY
1627 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1899 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1628#endif 1900#endif
1629#if EV_USE_SIGNALFD 1901#if EV_USE_SIGNALFD
1630 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1902 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1631#endif 1903#endif
1632 1904
1633 if (!(flags & 0x0000ffffU)) 1905 if (!(flags & EVBACKEND_MASK))
1634 flags |= ev_recommended_backends (); 1906 flags |= ev_recommended_backends ();
1635 1907
1908#if EV_USE_IOCP
1909 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1910#endif
1636#if EV_USE_PORT 1911#if EV_USE_PORT
1637 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1912 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1638#endif 1913#endif
1639#if EV_USE_KQUEUE 1914#if EV_USE_KQUEUE
1640 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1915 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1649 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1924 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1650#endif 1925#endif
1651 1926
1652 ev_prepare_init (&pending_w, pendingcb); 1927 ev_prepare_init (&pending_w, pendingcb);
1653 1928
1929#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1654 ev_init (&pipe_w, pipecb); 1930 ev_init (&pipe_w, pipecb);
1655 ev_set_priority (&pipe_w, EV_MAXPRI); 1931 ev_set_priority (&pipe_w, EV_MAXPRI);
1932#endif
1656 } 1933 }
1657} 1934}
1658 1935
1659/* free up a loop structure */ 1936/* free up a loop structure */
1660static void noinline 1937void ecb_cold
1661loop_destroy (EV_P) 1938ev_loop_destroy (EV_P)
1662{ 1939{
1663 int i; 1940 int i;
1941
1942#if EV_MULTIPLICITY
1943 /* mimic free (0) */
1944 if (!EV_A)
1945 return;
1946#endif
1947
1948#if EV_CLEANUP_ENABLE
1949 /* queue cleanup watchers (and execute them) */
1950 if (expect_false (cleanupcnt))
1951 {
1952 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1953 EV_INVOKE_PENDING;
1954 }
1955#endif
1956
1957#if EV_CHILD_ENABLE
1958 if (ev_is_active (&childev))
1959 {
1960 ev_ref (EV_A); /* child watcher */
1961 ev_signal_stop (EV_A_ &childev);
1962 }
1963#endif
1664 1964
1665 if (ev_is_active (&pipe_w)) 1965 if (ev_is_active (&pipe_w))
1666 { 1966 {
1667 /*ev_ref (EV_A);*/ 1967 /*ev_ref (EV_A);*/
1668 /*ev_io_stop (EV_A_ &pipe_w);*/ 1968 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1690#endif 1990#endif
1691 1991
1692 if (backend_fd >= 0) 1992 if (backend_fd >= 0)
1693 close (backend_fd); 1993 close (backend_fd);
1694 1994
1995#if EV_USE_IOCP
1996 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1997#endif
1695#if EV_USE_PORT 1998#if EV_USE_PORT
1696 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1999 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1697#endif 2000#endif
1698#if EV_USE_KQUEUE 2001#if EV_USE_KQUEUE
1699 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2002 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1726 array_free (periodic, EMPTY); 2029 array_free (periodic, EMPTY);
1727#endif 2030#endif
1728#if EV_FORK_ENABLE 2031#if EV_FORK_ENABLE
1729 array_free (fork, EMPTY); 2032 array_free (fork, EMPTY);
1730#endif 2033#endif
2034#if EV_CLEANUP_ENABLE
2035 array_free (cleanup, EMPTY);
2036#endif
1731 array_free (prepare, EMPTY); 2037 array_free (prepare, EMPTY);
1732 array_free (check, EMPTY); 2038 array_free (check, EMPTY);
1733#if EV_ASYNC_ENABLE 2039#if EV_ASYNC_ENABLE
1734 array_free (async, EMPTY); 2040 array_free (async, EMPTY);
1735#endif 2041#endif
1736 2042
1737 backend = 0; 2043 backend = 0;
2044
2045#if EV_MULTIPLICITY
2046 if (ev_is_default_loop (EV_A))
2047#endif
2048 ev_default_loop_ptr = 0;
2049#if EV_MULTIPLICITY
2050 else
2051 ev_free (EV_A);
2052#endif
1738} 2053}
1739 2054
1740#if EV_USE_INOTIFY 2055#if EV_USE_INOTIFY
1741inline_size void infy_fork (EV_P); 2056inline_size void infy_fork (EV_P);
1742#endif 2057#endif
… …
1757 infy_fork (EV_A); 2072 infy_fork (EV_A);
1758#endif 2073#endif
1759 2074
1760 if (ev_is_active (&pipe_w)) 2075 if (ev_is_active (&pipe_w))
1761 { 2076 {
1762 /* this "locks" the handlers against writing to the pipe */ 2077 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1763 /* while we modify the fd vars */
1764 sig_pending = 1;
1765#if EV_ASYNC_ENABLE
1766 async_pending = 1;
1767#endif
1768 2078
1769 ev_ref (EV_A); 2079 ev_ref (EV_A);
1770 ev_io_stop (EV_A_ &pipe_w); 2080 ev_io_stop (EV_A_ &pipe_w);
1771 2081
1772#if EV_USE_EVENTFD 2082#if EV_USE_EVENTFD
… …
1778 { 2088 {
1779 EV_WIN32_CLOSE_FD (evpipe [0]); 2089 EV_WIN32_CLOSE_FD (evpipe [0]);
1780 EV_WIN32_CLOSE_FD (evpipe [1]); 2090 EV_WIN32_CLOSE_FD (evpipe [1]);
1781 } 2091 }
1782 2092
2093#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1783 evpipe_init (EV_A); 2094 evpipe_init (EV_A);
1784 /* now iterate over everything, in case we missed something */ 2095 /* now iterate over everything, in case we missed something */
1785 pipecb (EV_A_ &pipe_w, EV_READ); 2096 pipecb (EV_A_ &pipe_w, EV_READ);
2097#endif
1786 } 2098 }
1787 2099
1788 postfork = 0; 2100 postfork = 0;
1789} 2101}
1790 2102
1791#if EV_MULTIPLICITY 2103#if EV_MULTIPLICITY
1792 2104
1793struct ev_loop * 2105struct ev_loop * ecb_cold
1794ev_loop_new (unsigned int flags) 2106ev_loop_new (unsigned int flags)
1795{ 2107{
1796 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2108 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1797 2109
1798 memset (EV_A, 0, sizeof (struct ev_loop)); 2110 memset (EV_A, 0, sizeof (struct ev_loop));
1799 loop_init (EV_A_ flags); 2111 loop_init (EV_A_ flags);
1800 2112
1801 if (ev_backend (EV_A)) 2113 if (ev_backend (EV_A))
1802 return EV_A; 2114 return EV_A;
1803 2115
2116 ev_free (EV_A);
1804 return 0; 2117 return 0;
1805} 2118}
1806 2119
1807void
1808ev_loop_destroy (EV_P)
1809{
1810 loop_destroy (EV_A);
1811 ev_free (loop);
1812}
1813
1814void
1815ev_loop_fork (EV_P)
1816{
1817 postfork = 1; /* must be in line with ev_default_fork */
1818}
1819#endif /* multiplicity */ 2120#endif /* multiplicity */
1820 2121
1821#if EV_VERIFY 2122#if EV_VERIFY
1822static void noinline 2123static void noinline ecb_cold
1823verify_watcher (EV_P_ W w) 2124verify_watcher (EV_P_ W w)
1824{ 2125{
1825 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2126 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1826 2127
1827 if (w->pending) 2128 if (w->pending)
1828 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2129 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1829} 2130}
1830 2131
1831static void noinline 2132static void noinline ecb_cold
1832verify_heap (EV_P_ ANHE *heap, int N) 2133verify_heap (EV_P_ ANHE *heap, int N)
1833{ 2134{
1834 int i; 2135 int i;
1835 2136
1836 for (i = HEAP0; i < N + HEAP0; ++i) 2137 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1841 2142
1842 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2143 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1843 } 2144 }
1844} 2145}
1845 2146
1846static void noinline 2147static void noinline ecb_cold
1847array_verify (EV_P_ W *ws, int cnt) 2148array_verify (EV_P_ W *ws, int cnt)
1848{ 2149{
1849 while (cnt--) 2150 while (cnt--)
1850 { 2151 {
1851 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2152 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1852 verify_watcher (EV_A_ ws [cnt]); 2153 verify_watcher (EV_A_ ws [cnt]);
1853 } 2154 }
1854} 2155}
1855#endif 2156#endif
1856 2157
1857#if EV_MINIMAL < 2 2158#if EV_FEATURE_API
1858void 2159void ecb_cold
1859ev_loop_verify (EV_P) 2160ev_verify (EV_P)
1860{ 2161{
1861#if EV_VERIFY 2162#if EV_VERIFY
1862 int i; 2163 int i;
1863 WL w; 2164 WL w;
1864 2165
… …
1898#if EV_FORK_ENABLE 2199#if EV_FORK_ENABLE
1899 assert (forkmax >= forkcnt); 2200 assert (forkmax >= forkcnt);
1900 array_verify (EV_A_ (W *)forks, forkcnt); 2201 array_verify (EV_A_ (W *)forks, forkcnt);
1901#endif 2202#endif
1902 2203
2204#if EV_CLEANUP_ENABLE
2205 assert (cleanupmax >= cleanupcnt);
2206 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2207#endif
2208
1903#if EV_ASYNC_ENABLE 2209#if EV_ASYNC_ENABLE
1904 assert (asyncmax >= asynccnt); 2210 assert (asyncmax >= asynccnt);
1905 array_verify (EV_A_ (W *)asyncs, asynccnt); 2211 array_verify (EV_A_ (W *)asyncs, asynccnt);
1906#endif 2212#endif
1907 2213
2214#if EV_PREPARE_ENABLE
1908 assert (preparemax >= preparecnt); 2215 assert (preparemax >= preparecnt);
1909 array_verify (EV_A_ (W *)prepares, preparecnt); 2216 array_verify (EV_A_ (W *)prepares, preparecnt);
2217#endif
1910 2218
2219#if EV_CHECK_ENABLE
1911 assert (checkmax >= checkcnt); 2220 assert (checkmax >= checkcnt);
1912 array_verify (EV_A_ (W *)checks, checkcnt); 2221 array_verify (EV_A_ (W *)checks, checkcnt);
2222#endif
1913 2223
1914# if 0 2224# if 0
2225#if EV_CHILD_ENABLE
1915 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2226 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1916 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2227 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2228#endif
1917# endif 2229# endif
1918#endif 2230#endif
1919} 2231}
1920#endif 2232#endif
1921 2233
1922#if EV_MULTIPLICITY 2234#if EV_MULTIPLICITY
1923struct ev_loop * 2235struct ev_loop * ecb_cold
1924ev_default_loop_init (unsigned int flags)
1925#else 2236#else
1926int 2237int
2238#endif
1927ev_default_loop (unsigned int flags) 2239ev_default_loop (unsigned int flags)
1928#endif
1929{ 2240{
1930 if (!ev_default_loop_ptr) 2241 if (!ev_default_loop_ptr)
1931 { 2242 {
1932#if EV_MULTIPLICITY 2243#if EV_MULTIPLICITY
1933 EV_P = ev_default_loop_ptr = &default_loop_struct; 2244 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1937 2248
1938 loop_init (EV_A_ flags); 2249 loop_init (EV_A_ flags);
1939 2250
1940 if (ev_backend (EV_A)) 2251 if (ev_backend (EV_A))
1941 { 2252 {
1942#ifndef _WIN32 2253#if EV_CHILD_ENABLE
1943 ev_signal_init (&childev, childcb, SIGCHLD); 2254 ev_signal_init (&childev, childcb, SIGCHLD);
1944 ev_set_priority (&childev, EV_MAXPRI); 2255 ev_set_priority (&childev, EV_MAXPRI);
1945 ev_signal_start (EV_A_ &childev); 2256 ev_signal_start (EV_A_ &childev);
1946 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2257 ev_unref (EV_A); /* child watcher should not keep loop alive */
1947#endif 2258#endif
… …
1952 2263
1953 return ev_default_loop_ptr; 2264 return ev_default_loop_ptr;
1954} 2265}
1955 2266
1956void 2267void
1957ev_default_destroy (void) 2268ev_loop_fork (EV_P)
1958{ 2269{
1959#if EV_MULTIPLICITY
1960 EV_P = ev_default_loop_ptr;
1961#endif
1962
1963 ev_default_loop_ptr = 0;
1964
1965#ifndef _WIN32
1966 ev_ref (EV_A); /* child watcher */
1967 ev_signal_stop (EV_A_ &childev);
1968#endif
1969
1970 loop_destroy (EV_A);
1971}
1972
1973void
1974ev_default_fork (void)
1975{
1976#if EV_MULTIPLICITY
1977 EV_P = ev_default_loop_ptr;
1978#endif
1979
1980 postfork = 1; /* must be in line with ev_loop_fork */ 2270 postfork = 1; /* must be in line with ev_default_fork */
1981} 2271}
1982 2272
1983/*****************************************************************************/ 2273/*****************************************************************************/
1984 2274
1985void 2275void
… …
2007 2297
2008 for (pri = NUMPRI; pri--; ) 2298 for (pri = NUMPRI; pri--; )
2009 while (pendingcnt [pri]) 2299 while (pendingcnt [pri])
2010 { 2300 {
2011 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2301 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2012
2013 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2014 /* ^ this is no longer true, as pending_w could be here */
2015 2302
2016 p->w->pending = 0; 2303 p->w->pending = 0;
2017 EV_CB_INVOKE (p->w, p->events); 2304 EV_CB_INVOKE (p->w, p->events);
2018 EV_FREQUENT_CHECK; 2305 EV_FREQUENT_CHECK;
2019 } 2306 }
… …
2076 EV_FREQUENT_CHECK; 2363 EV_FREQUENT_CHECK;
2077 feed_reverse (EV_A_ (W)w); 2364 feed_reverse (EV_A_ (W)w);
2078 } 2365 }
2079 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2366 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2080 2367
2081 feed_reverse_done (EV_A_ EV_TIMEOUT); 2368 feed_reverse_done (EV_A_ EV_TIMER);
2082 } 2369 }
2083} 2370}
2084 2371
2085#if EV_PERIODIC_ENABLE 2372#if EV_PERIODIC_ENABLE
2373
2374static void noinline
2375periodic_recalc (EV_P_ ev_periodic *w)
2376{
2377 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2378 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2379
2380 /* the above almost always errs on the low side */
2381 while (at <= ev_rt_now)
2382 {
2383 ev_tstamp nat = at + w->interval;
2384
2385 /* when resolution fails us, we use ev_rt_now */
2386 if (expect_false (nat == at))
2387 {
2388 at = ev_rt_now;
2389 break;
2390 }
2391
2392 at = nat;
2393 }
2394
2395 ev_at (w) = at;
2396}
2397
2086/* make periodics pending */ 2398/* make periodics pending */
2087inline_size void 2399inline_size void
2088periodics_reify (EV_P) 2400periodics_reify (EV_P)
2089{ 2401{
2090 EV_FREQUENT_CHECK; 2402 EV_FREQUENT_CHECK;
… …
2109 ANHE_at_cache (periodics [HEAP0]); 2421 ANHE_at_cache (periodics [HEAP0]);
2110 downheap (periodics, periodiccnt, HEAP0); 2422 downheap (periodics, periodiccnt, HEAP0);
2111 } 2423 }
2112 else if (w->interval) 2424 else if (w->interval)
2113 { 2425 {
2114 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2426 periodic_recalc (EV_A_ w);
2115 /* if next trigger time is not sufficiently in the future, put it there */
2116 /* this might happen because of floating point inexactness */
2117 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2118 {
2119 ev_at (w) += w->interval;
2120
2121 /* if interval is unreasonably low we might still have a time in the past */
2122 /* so correct this. this will make the periodic very inexact, but the user */
2123 /* has effectively asked to get triggered more often than possible */
2124 if (ev_at (w) < ev_rt_now)
2125 ev_at (w) = ev_rt_now;
2126 }
2127
2128 ANHE_at_cache (periodics [HEAP0]); 2427 ANHE_at_cache (periodics [HEAP0]);
2129 downheap (periodics, periodiccnt, HEAP0); 2428 downheap (periodics, periodiccnt, HEAP0);
2130 } 2429 }
2131 else 2430 else
2132 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2431 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2139 feed_reverse_done (EV_A_ EV_PERIODIC); 2438 feed_reverse_done (EV_A_ EV_PERIODIC);
2140 } 2439 }
2141} 2440}
2142 2441
2143/* simply recalculate all periodics */ 2442/* simply recalculate all periodics */
2144/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2443/* TODO: maybe ensure that at least one event happens when jumping forward? */
2145static void noinline 2444static void noinline ecb_cold
2146periodics_reschedule (EV_P) 2445periodics_reschedule (EV_P)
2147{ 2446{
2148 int i; 2447 int i;
2149 2448
2150 /* adjust periodics after time jump */ 2449 /* adjust periodics after time jump */
… …
2153 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2452 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2154 2453
2155 if (w->reschedule_cb) 2454 if (w->reschedule_cb)
2156 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2455 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2157 else if (w->interval) 2456 else if (w->interval)
2158 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2457 periodic_recalc (EV_A_ w);
2159 2458
2160 ANHE_at_cache (periodics [i]); 2459 ANHE_at_cache (periodics [i]);
2161 } 2460 }
2162 2461
2163 reheap (periodics, periodiccnt); 2462 reheap (periodics, periodiccnt);
2164} 2463}
2165#endif 2464#endif
2166 2465
2167/* adjust all timers by a given offset */ 2466/* adjust all timers by a given offset */
2168static void noinline 2467static void noinline ecb_cold
2169timers_reschedule (EV_P_ ev_tstamp adjust) 2468timers_reschedule (EV_P_ ev_tstamp adjust)
2170{ 2469{
2171 int i; 2470 int i;
2172 2471
2173 for (i = 0; i < timercnt; ++i) 2472 for (i = 0; i < timercnt; ++i)
… …
2210 * doesn't hurt either as we only do this on time-jumps or 2509 * doesn't hurt either as we only do this on time-jumps or
2211 * in the unlikely event of having been preempted here. 2510 * in the unlikely event of having been preempted here.
2212 */ 2511 */
2213 for (i = 4; --i; ) 2512 for (i = 4; --i; )
2214 { 2513 {
2514 ev_tstamp diff;
2215 rtmn_diff = ev_rt_now - mn_now; 2515 rtmn_diff = ev_rt_now - mn_now;
2216 2516
2517 diff = odiff - rtmn_diff;
2518
2217 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2519 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2218 return; /* all is well */ 2520 return; /* all is well */
2219 2521
2220 ev_rt_now = ev_time (); 2522 ev_rt_now = ev_time ();
2221 mn_now = get_clock (); 2523 mn_now = get_clock ();
2222 now_floor = mn_now; 2524 now_floor = mn_now;
… …
2245 mn_now = ev_rt_now; 2547 mn_now = ev_rt_now;
2246 } 2548 }
2247} 2549}
2248 2550
2249void 2551void
2250ev_loop (EV_P_ int flags) 2552ev_run (EV_P_ int flags)
2251{ 2553{
2252#if EV_MINIMAL < 2 2554#if EV_FEATURE_API
2253 ++loop_depth; 2555 ++loop_depth;
2254#endif 2556#endif
2255 2557
2256 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2558 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2257 2559
2258 loop_done = EVUNLOOP_CANCEL; 2560 loop_done = EVBREAK_CANCEL;
2259 2561
2260 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2562 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2261 2563
2262 do 2564 do
2263 { 2565 {
2264#if EV_VERIFY >= 2 2566#if EV_VERIFY >= 2
2265 ev_loop_verify (EV_A); 2567 ev_verify (EV_A);
2266#endif 2568#endif
2267 2569
2268#ifndef _WIN32 2570#ifndef _WIN32
2269 if (expect_false (curpid)) /* penalise the forking check even more */ 2571 if (expect_false (curpid)) /* penalise the forking check even more */
2270 if (expect_false (getpid () != curpid)) 2572 if (expect_false (getpid () != curpid))
… …
2282 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2584 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2283 EV_INVOKE_PENDING; 2585 EV_INVOKE_PENDING;
2284 } 2586 }
2285#endif 2587#endif
2286 2588
2589#if EV_PREPARE_ENABLE
2287 /* queue prepare watchers (and execute them) */ 2590 /* queue prepare watchers (and execute them) */
2288 if (expect_false (preparecnt)) 2591 if (expect_false (preparecnt))
2289 { 2592 {
2290 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2593 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2291 EV_INVOKE_PENDING; 2594 EV_INVOKE_PENDING;
2292 } 2595 }
2596#endif
2293 2597
2294 if (expect_false (loop_done)) 2598 if (expect_false (loop_done))
2295 break; 2599 break;
2296 2600
2297 /* we might have forked, so reify kernel state if necessary */ 2601 /* we might have forked, so reify kernel state if necessary */
… …
2304 /* calculate blocking time */ 2608 /* calculate blocking time */
2305 { 2609 {
2306 ev_tstamp waittime = 0.; 2610 ev_tstamp waittime = 0.;
2307 ev_tstamp sleeptime = 0.; 2611 ev_tstamp sleeptime = 0.;
2308 2612
2613 /* remember old timestamp for io_blocktime calculation */
2614 ev_tstamp prev_mn_now = mn_now;
2615
2616 /* update time to cancel out callback processing overhead */
2617 time_update (EV_A_ 1e100);
2618
2619 /* from now on, we want a pipe-wake-up */
2620 pipe_write_wanted = 1;
2621
2622 ECB_MEMORY_FENCE; /* amke sure pipe_write_wanted is visible before we check for potential skips */
2623
2309 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2624 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2310 { 2625 {
2311 /* remember old timestamp for io_blocktime calculation */
2312 ev_tstamp prev_mn_now = mn_now;
2313
2314 /* update time to cancel out callback processing overhead */
2315 time_update (EV_A_ 1e100);
2316
2317 waittime = MAX_BLOCKTIME; 2626 waittime = MAX_BLOCKTIME;
2318 2627
2319 if (timercnt) 2628 if (timercnt)
2320 { 2629 {
2321 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2630 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2322 if (waittime > to) waittime = to; 2631 if (waittime > to) waittime = to;
2323 } 2632 }
2324 2633
2325#if EV_PERIODIC_ENABLE 2634#if EV_PERIODIC_ENABLE
2326 if (periodiccnt) 2635 if (periodiccnt)
2327 { 2636 {
2328 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2637 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2329 if (waittime > to) waittime = to; 2638 if (waittime > to) waittime = to;
2330 } 2639 }
2331#endif 2640#endif
2332 2641
2333 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2642 /* don't let timeouts decrease the waittime below timeout_blocktime */
2334 if (expect_false (waittime < timeout_blocktime)) 2643 if (expect_false (waittime < timeout_blocktime))
2335 waittime = timeout_blocktime; 2644 waittime = timeout_blocktime;
2645
2646 /* at this point, we NEED to wait, so we have to ensure */
2647 /* to pass a minimum nonzero value to the backend */
2648 if (expect_false (waittime < backend_mintime))
2649 waittime = backend_mintime;
2336 2650
2337 /* extra check because io_blocktime is commonly 0 */ 2651 /* extra check because io_blocktime is commonly 0 */
2338 if (expect_false (io_blocktime)) 2652 if (expect_false (io_blocktime))
2339 { 2653 {
2340 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2654 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2341 2655
2342 if (sleeptime > waittime - backend_fudge) 2656 if (sleeptime > waittime - backend_mintime)
2343 sleeptime = waittime - backend_fudge; 2657 sleeptime = waittime - backend_mintime;
2344 2658
2345 if (expect_true (sleeptime > 0.)) 2659 if (expect_true (sleeptime > 0.))
2346 { 2660 {
2347 ev_sleep (sleeptime); 2661 ev_sleep (sleeptime);
2348 waittime -= sleeptime; 2662 waittime -= sleeptime;
2349 } 2663 }
2350 } 2664 }
2351 } 2665 }
2352 2666
2353#if EV_MINIMAL < 2 2667#if EV_FEATURE_API
2354 ++loop_count; 2668 ++loop_count;
2355#endif 2669#endif
2356 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2670 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2357 backend_poll (EV_A_ waittime); 2671 backend_poll (EV_A_ waittime);
2358 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2672 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2673
2674 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2675
2676 if (pipe_write_skipped)
2677 {
2678 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2679 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2680 }
2681
2359 2682
2360 /* update ev_rt_now, do magic */ 2683 /* update ev_rt_now, do magic */
2361 time_update (EV_A_ waittime + sleeptime); 2684 time_update (EV_A_ waittime + sleeptime);
2362 } 2685 }
2363 2686
… …
2370#if EV_IDLE_ENABLE 2693#if EV_IDLE_ENABLE
2371 /* queue idle watchers unless other events are pending */ 2694 /* queue idle watchers unless other events are pending */
2372 idle_reify (EV_A); 2695 idle_reify (EV_A);
2373#endif 2696#endif
2374 2697
2698#if EV_CHECK_ENABLE
2375 /* queue check watchers, to be executed first */ 2699 /* queue check watchers, to be executed first */
2376 if (expect_false (checkcnt)) 2700 if (expect_false (checkcnt))
2377 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2701 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2702#endif
2378 2703
2379 EV_INVOKE_PENDING; 2704 EV_INVOKE_PENDING;
2380 } 2705 }
2381 while (expect_true ( 2706 while (expect_true (
2382 activecnt 2707 activecnt
2383 && !loop_done 2708 && !loop_done
2384 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2709 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2385 )); 2710 ));
2386 2711
2387 if (loop_done == EVUNLOOP_ONE) 2712 if (loop_done == EVBREAK_ONE)
2388 loop_done = EVUNLOOP_CANCEL; 2713 loop_done = EVBREAK_CANCEL;
2389 2714
2390#if EV_MINIMAL < 2 2715#if EV_FEATURE_API
2391 --loop_depth; 2716 --loop_depth;
2392#endif 2717#endif
2393} 2718}
2394 2719
2395void 2720void
2396ev_unloop (EV_P_ int how) 2721ev_break (EV_P_ int how)
2397{ 2722{
2398 loop_done = how; 2723 loop_done = how;
2399} 2724}
2400 2725
2401void 2726void
… …
2549 EV_FREQUENT_CHECK; 2874 EV_FREQUENT_CHECK;
2550 2875
2551 wlist_del (&anfds[w->fd].head, (WL)w); 2876 wlist_del (&anfds[w->fd].head, (WL)w);
2552 ev_stop (EV_A_ (W)w); 2877 ev_stop (EV_A_ (W)w);
2553 2878
2554 fd_change (EV_A_ w->fd, 1); 2879 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2555 2880
2556 EV_FREQUENT_CHECK; 2881 EV_FREQUENT_CHECK;
2557} 2882}
2558 2883
2559void noinline 2884void noinline
… …
2651 if (w->reschedule_cb) 2976 if (w->reschedule_cb)
2652 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2977 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2653 else if (w->interval) 2978 else if (w->interval)
2654 { 2979 {
2655 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2980 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2656 /* this formula differs from the one in periodic_reify because we do not always round up */ 2981 periodic_recalc (EV_A_ w);
2657 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2658 } 2982 }
2659 else 2983 else
2660 ev_at (w) = w->offset; 2984 ev_at (w) = w->offset;
2661 2985
2662 EV_FREQUENT_CHECK; 2986 EV_FREQUENT_CHECK;
… …
2711#endif 3035#endif
2712 3036
2713#ifndef SA_RESTART 3037#ifndef SA_RESTART
2714# define SA_RESTART 0 3038# define SA_RESTART 0
2715#endif 3039#endif
3040
3041#if EV_SIGNAL_ENABLE
2716 3042
2717void noinline 3043void noinline
2718ev_signal_start (EV_P_ ev_signal *w) 3044ev_signal_start (EV_P_ ev_signal *w)
2719{ 3045{
2720 if (expect_false (ev_is_active (w))) 3046 if (expect_false (ev_is_active (w)))
… …
2781 sa.sa_handler = ev_sighandler; 3107 sa.sa_handler = ev_sighandler;
2782 sigfillset (&sa.sa_mask); 3108 sigfillset (&sa.sa_mask);
2783 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3109 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2784 sigaction (w->signum, &sa, 0); 3110 sigaction (w->signum, &sa, 0);
2785 3111
3112 if (origflags & EVFLAG_NOSIGMASK)
3113 {
2786 sigemptyset (&sa.sa_mask); 3114 sigemptyset (&sa.sa_mask);
2787 sigaddset (&sa.sa_mask, w->signum); 3115 sigaddset (&sa.sa_mask, w->signum);
2788 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3116 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3117 }
2789#endif 3118#endif
2790 } 3119 }
2791 3120
2792 EV_FREQUENT_CHECK; 3121 EV_FREQUENT_CHECK;
2793} 3122}
… …
2827 } 3156 }
2828 3157
2829 EV_FREQUENT_CHECK; 3158 EV_FREQUENT_CHECK;
2830} 3159}
2831 3160
3161#endif
3162
3163#if EV_CHILD_ENABLE
3164
2832void 3165void
2833ev_child_start (EV_P_ ev_child *w) 3166ev_child_start (EV_P_ ev_child *w)
2834{ 3167{
2835#if EV_MULTIPLICITY 3168#if EV_MULTIPLICITY
2836 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3169 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2839 return; 3172 return;
2840 3173
2841 EV_FREQUENT_CHECK; 3174 EV_FREQUENT_CHECK;
2842 3175
2843 ev_start (EV_A_ (W)w, 1); 3176 ev_start (EV_A_ (W)w, 1);
2844 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3177 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845 3178
2846 EV_FREQUENT_CHECK; 3179 EV_FREQUENT_CHECK;
2847} 3180}
2848 3181
2849void 3182void
… …
2853 if (expect_false (!ev_is_active (w))) 3186 if (expect_false (!ev_is_active (w)))
2854 return; 3187 return;
2855 3188
2856 EV_FREQUENT_CHECK; 3189 EV_FREQUENT_CHECK;
2857 3190
2858 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3191 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2859 ev_stop (EV_A_ (W)w); 3192 ev_stop (EV_A_ (W)w);
2860 3193
2861 EV_FREQUENT_CHECK; 3194 EV_FREQUENT_CHECK;
2862} 3195}
3196
3197#endif
2863 3198
2864#if EV_STAT_ENABLE 3199#if EV_STAT_ENABLE
2865 3200
2866# ifdef _WIN32 3201# ifdef _WIN32
2867# undef lstat 3202# undef lstat
… …
2928 if (!pend || pend == path) 3263 if (!pend || pend == path)
2929 break; 3264 break;
2930 3265
2931 *pend = 0; 3266 *pend = 0;
2932 w->wd = inotify_add_watch (fs_fd, path, mask); 3267 w->wd = inotify_add_watch (fs_fd, path, mask);
2933 } 3268 }
2934 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3269 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2935 } 3270 }
2936 } 3271 }
2937 3272
2938 if (w->wd >= 0) 3273 if (w->wd >= 0)
2939 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3274 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2940 3275
2941 /* now re-arm timer, if required */ 3276 /* now re-arm timer, if required */
2942 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3277 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2943 ev_timer_again (EV_A_ &w->timer); 3278 ev_timer_again (EV_A_ &w->timer);
2944 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3279 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2952 3287
2953 if (wd < 0) 3288 if (wd < 0)
2954 return; 3289 return;
2955 3290
2956 w->wd = -2; 3291 w->wd = -2;
2957 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3292 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2958 wlist_del (&fs_hash [slot].head, (WL)w); 3293 wlist_del (&fs_hash [slot].head, (WL)w);
2959 3294
2960 /* remove this watcher, if others are watching it, they will rearm */ 3295 /* remove this watcher, if others are watching it, they will rearm */
2961 inotify_rm_watch (fs_fd, wd); 3296 inotify_rm_watch (fs_fd, wd);
2962} 3297}
… …
2964static void noinline 3299static void noinline
2965infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3300infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2966{ 3301{
2967 if (slot < 0) 3302 if (slot < 0)
2968 /* overflow, need to check for all hash slots */ 3303 /* overflow, need to check for all hash slots */
2969 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3304 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2970 infy_wd (EV_A_ slot, wd, ev); 3305 infy_wd (EV_A_ slot, wd, ev);
2971 else 3306 else
2972 { 3307 {
2973 WL w_; 3308 WL w_;
2974 3309
2975 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3310 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2976 { 3311 {
2977 ev_stat *w = (ev_stat *)w_; 3312 ev_stat *w = (ev_stat *)w_;
2978 w_ = w_->next; /* lets us remove this watcher and all before it */ 3313 w_ = w_->next; /* lets us remove this watcher and all before it */
2979 3314
2980 if (w->wd == wd || wd == -1) 3315 if (w->wd == wd || wd == -1)
2981 { 3316 {
2982 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3317 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2983 { 3318 {
2984 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3319 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2985 w->wd = -1; 3320 w->wd = -1;
2986 infy_add (EV_A_ w); /* re-add, no matter what */ 3321 infy_add (EV_A_ w); /* re-add, no matter what */
2987 } 3322 }
2988 3323
2989 stat_timer_cb (EV_A_ &w->timer, 0); 3324 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3005 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3340 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3006 ofs += sizeof (struct inotify_event) + ev->len; 3341 ofs += sizeof (struct inotify_event) + ev->len;
3007 } 3342 }
3008} 3343}
3009 3344
3010inline_size unsigned int
3011ev_linux_version (void)
3012{
3013 struct utsname buf;
3014 unsigned int v;
3015 int i;
3016 char *p = buf.release;
3017
3018 if (uname (&buf))
3019 return 0;
3020
3021 for (i = 3+1; --i; )
3022 {
3023 unsigned int c = 0;
3024
3025 for (;;)
3026 {
3027 if (*p >= '0' && *p <= '9')
3028 c = c * 10 + *p++ - '0';
3029 else
3030 {
3031 p += *p == '.';
3032 break;
3033 }
3034 }
3035
3036 v = (v << 8) | c;
3037 }
3038
3039 return v;
3040}
3041
3042inline_size void 3345inline_size void ecb_cold
3043ev_check_2625 (EV_P) 3346ev_check_2625 (EV_P)
3044{ 3347{
3045 /* kernels < 2.6.25 are borked 3348 /* kernels < 2.6.25 are borked
3046 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3349 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3047 */ 3350 */
… …
3103 ev_io_set (&fs_w, fs_fd, EV_READ); 3406 ev_io_set (&fs_w, fs_fd, EV_READ);
3104 ev_io_start (EV_A_ &fs_w); 3407 ev_io_start (EV_A_ &fs_w);
3105 ev_unref (EV_A); 3408 ev_unref (EV_A);
3106 } 3409 }
3107 3410
3108 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3411 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3109 { 3412 {
3110 WL w_ = fs_hash [slot].head; 3413 WL w_ = fs_hash [slot].head;
3111 fs_hash [slot].head = 0; 3414 fs_hash [slot].head = 0;
3112 3415
3113 while (w_) 3416 while (w_)
… …
3288 3591
3289 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
3290} 3593}
3291#endif 3594#endif
3292 3595
3596#if EV_PREPARE_ENABLE
3293void 3597void
3294ev_prepare_start (EV_P_ ev_prepare *w) 3598ev_prepare_start (EV_P_ ev_prepare *w)
3295{ 3599{
3296 if (expect_false (ev_is_active (w))) 3600 if (expect_false (ev_is_active (w)))
3297 return; 3601 return;
… …
3323 3627
3324 ev_stop (EV_A_ (W)w); 3628 ev_stop (EV_A_ (W)w);
3325 3629
3326 EV_FREQUENT_CHECK; 3630 EV_FREQUENT_CHECK;
3327} 3631}
3632#endif
3328 3633
3634#if EV_CHECK_ENABLE
3329void 3635void
3330ev_check_start (EV_P_ ev_check *w) 3636ev_check_start (EV_P_ ev_check *w)
3331{ 3637{
3332 if (expect_false (ev_is_active (w))) 3638 if (expect_false (ev_is_active (w)))
3333 return; 3639 return;
… …
3359 3665
3360 ev_stop (EV_A_ (W)w); 3666 ev_stop (EV_A_ (W)w);
3361 3667
3362 EV_FREQUENT_CHECK; 3668 EV_FREQUENT_CHECK;
3363} 3669}
3670#endif
3364 3671
3365#if EV_EMBED_ENABLE 3672#if EV_EMBED_ENABLE
3366void noinline 3673void noinline
3367ev_embed_sweep (EV_P_ ev_embed *w) 3674ev_embed_sweep (EV_P_ ev_embed *w)
3368{ 3675{
3369 ev_loop (w->other, EVLOOP_NONBLOCK); 3676 ev_run (w->other, EVRUN_NOWAIT);
3370} 3677}
3371 3678
3372static void 3679static void
3373embed_io_cb (EV_P_ ev_io *io, int revents) 3680embed_io_cb (EV_P_ ev_io *io, int revents)
3374{ 3681{
3375 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3682 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3376 3683
3377 if (ev_cb (w)) 3684 if (ev_cb (w))
3378 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3685 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3379 else 3686 else
3380 ev_loop (w->other, EVLOOP_NONBLOCK); 3687 ev_run (w->other, EVRUN_NOWAIT);
3381} 3688}
3382 3689
3383static void 3690static void
3384embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3691embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3385{ 3692{
… …
3389 EV_P = w->other; 3696 EV_P = w->other;
3390 3697
3391 while (fdchangecnt) 3698 while (fdchangecnt)
3392 { 3699 {
3393 fd_reify (EV_A); 3700 fd_reify (EV_A);
3394 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3701 ev_run (EV_A_ EVRUN_NOWAIT);
3395 } 3702 }
3396 } 3703 }
3397} 3704}
3398 3705
3399static void 3706static void
… …
3405 3712
3406 { 3713 {
3407 EV_P = w->other; 3714 EV_P = w->other;
3408 3715
3409 ev_loop_fork (EV_A); 3716 ev_loop_fork (EV_A);
3410 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3717 ev_run (EV_A_ EVRUN_NOWAIT);
3411 } 3718 }
3412 3719
3413 ev_embed_start (EV_A_ w); 3720 ev_embed_start (EV_A_ w);
3414} 3721}
3415 3722
… …
3507 3814
3508 EV_FREQUENT_CHECK; 3815 EV_FREQUENT_CHECK;
3509} 3816}
3510#endif 3817#endif
3511 3818
3819#if EV_CLEANUP_ENABLE
3820void
3821ev_cleanup_start (EV_P_ ev_cleanup *w)
3822{
3823 if (expect_false (ev_is_active (w)))
3824 return;
3825
3826 EV_FREQUENT_CHECK;
3827
3828 ev_start (EV_A_ (W)w, ++cleanupcnt);
3829 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3830 cleanups [cleanupcnt - 1] = w;
3831
3832 /* cleanup watchers should never keep a refcount on the loop */
3833 ev_unref (EV_A);
3834 EV_FREQUENT_CHECK;
3835}
3836
3837void
3838ev_cleanup_stop (EV_P_ ev_cleanup *w)
3839{
3840 clear_pending (EV_A_ (W)w);
3841 if (expect_false (!ev_is_active (w)))
3842 return;
3843
3844 EV_FREQUENT_CHECK;
3845 ev_ref (EV_A);
3846
3847 {
3848 int active = ev_active (w);
3849
3850 cleanups [active - 1] = cleanups [--cleanupcnt];
3851 ev_active (cleanups [active - 1]) = active;
3852 }
3853
3854 ev_stop (EV_A_ (W)w);
3855
3856 EV_FREQUENT_CHECK;
3857}
3858#endif
3859
3512#if EV_ASYNC_ENABLE 3860#if EV_ASYNC_ENABLE
3513void 3861void
3514ev_async_start (EV_P_ ev_async *w) 3862ev_async_start (EV_P_ ev_async *w)
3515{ 3863{
3516 if (expect_false (ev_is_active (w))) 3864 if (expect_false (ev_is_active (w)))
3517 return; 3865 return;
3866
3867 w->sent = 0;
3518 3868
3519 evpipe_init (EV_A); 3869 evpipe_init (EV_A);
3520 3870
3521 EV_FREQUENT_CHECK; 3871 EV_FREQUENT_CHECK;
3522 3872
… …
3600{ 3950{
3601 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3951 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3602 3952
3603 if (expect_false (!once)) 3953 if (expect_false (!once))
3604 { 3954 {
3605 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3955 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3606 return; 3956 return;
3607 } 3957 }
3608 3958
3609 once->cb = cb; 3959 once->cb = cb;
3610 once->arg = arg; 3960 once->arg = arg;
… …
3625} 3975}
3626 3976
3627/*****************************************************************************/ 3977/*****************************************************************************/
3628 3978
3629#if EV_WALK_ENABLE 3979#if EV_WALK_ENABLE
3630void 3980void ecb_cold
3631ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3981ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3632{ 3982{
3633 int i, j; 3983 int i, j;
3634 ev_watcher_list *wl, *wn; 3984 ev_watcher_list *wl, *wn;
3635 3985
… …
3697 if (types & EV_ASYNC) 4047 if (types & EV_ASYNC)
3698 for (i = asynccnt; i--; ) 4048 for (i = asynccnt; i--; )
3699 cb (EV_A_ EV_ASYNC, asyncs [i]); 4049 cb (EV_A_ EV_ASYNC, asyncs [i]);
3700#endif 4050#endif
3701 4051
4052#if EV_PREPARE_ENABLE
3702 if (types & EV_PREPARE) 4053 if (types & EV_PREPARE)
3703 for (i = preparecnt; i--; ) 4054 for (i = preparecnt; i--; )
3704#if EV_EMBED_ENABLE 4055# if EV_EMBED_ENABLE
3705 if (ev_cb (prepares [i]) != embed_prepare_cb) 4056 if (ev_cb (prepares [i]) != embed_prepare_cb)
3706#endif 4057# endif
3707 cb (EV_A_ EV_PREPARE, prepares [i]); 4058 cb (EV_A_ EV_PREPARE, prepares [i]);
4059#endif
3708 4060
4061#if EV_CHECK_ENABLE
3709 if (types & EV_CHECK) 4062 if (types & EV_CHECK)
3710 for (i = checkcnt; i--; ) 4063 for (i = checkcnt; i--; )
3711 cb (EV_A_ EV_CHECK, checks [i]); 4064 cb (EV_A_ EV_CHECK, checks [i]);
4065#endif
3712 4066
4067#if EV_SIGNAL_ENABLE
3713 if (types & EV_SIGNAL) 4068 if (types & EV_SIGNAL)
3714 for (i = 0; i < EV_NSIG - 1; ++i) 4069 for (i = 0; i < EV_NSIG - 1; ++i)
3715 for (wl = signals [i].head; wl; ) 4070 for (wl = signals [i].head; wl; )
3716 { 4071 {
3717 wn = wl->next; 4072 wn = wl->next;
3718 cb (EV_A_ EV_SIGNAL, wl); 4073 cb (EV_A_ EV_SIGNAL, wl);
3719 wl = wn; 4074 wl = wn;
3720 } 4075 }
4076#endif
3721 4077
4078#if EV_CHILD_ENABLE
3722 if (types & EV_CHILD) 4079 if (types & EV_CHILD)
3723 for (i = EV_PID_HASHSIZE; i--; ) 4080 for (i = (EV_PID_HASHSIZE); i--; )
3724 for (wl = childs [i]; wl; ) 4081 for (wl = childs [i]; wl; )
3725 { 4082 {
3726 wn = wl->next; 4083 wn = wl->next;
3727 cb (EV_A_ EV_CHILD, wl); 4084 cb (EV_A_ EV_CHILD, wl);
3728 wl = wn; 4085 wl = wn;
3729 } 4086 }
4087#endif
3730/* EV_STAT 0x00001000 /* stat data changed */ 4088/* EV_STAT 0x00001000 /* stat data changed */
3731/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4089/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3732} 4090}
3733#endif 4091#endif
3734 4092
3735#if EV_MULTIPLICITY 4093#if EV_MULTIPLICITY
3736 #include "ev_wrap.h" 4094 #include "ev_wrap.h"
3737#endif 4095#endif
3738 4096
3739#ifdef __cplusplus 4097EV_CPP(})
3740}
3741#endif
3742 4098

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