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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 1.389 by root, Wed Aug 3 15:31:23 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 /* VC++ 2005 */
517 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
518 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
519 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
520 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
521 #elif defined(_WIN32)
522 #include <WinNT.h>
523 #define ECB_MEMORY_FENCE MemoryBarrier ()
524 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
525 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
526 #endif
527#endif
528
529#ifndef ECB_MEMORY_FENCE
530 #include <pthread.h>
531
532 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
533 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
534 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
535 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
536#endif
537
538#if ECB_GCC_VERSION(3,1)
539 #define ecb_attribute(attrlist) __attribute__(attrlist)
540 #define ecb_is_constant(expr) __builtin_constant_p (expr)
541 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
542 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
543#else
544 #define ecb_attribute(attrlist)
545 #define ecb_is_constant(expr) 0
546 #define ecb_expect(expr,value) (expr)
547 #define ecb_prefetch(addr,rw,locality)
548#endif
549
550#define ecb_noinline ecb_attribute ((__noinline__))
551#define ecb_noreturn ecb_attribute ((__noreturn__))
552#define ecb_unused ecb_attribute ((__unused__))
553#define ecb_const ecb_attribute ((__const__))
554#define ecb_pure ecb_attribute ((__pure__))
555
556#if ECB_GCC_VERSION(4,3)
557 #define ecb_artificial ecb_attribute ((__artificial__))
558 #define ecb_hot ecb_attribute ((__hot__))
559 #define ecb_cold ecb_attribute ((__cold__))
560#else
561 #define ecb_artificial
562 #define ecb_hot
563 #define ecb_cold
564#endif
565
566/* put around conditional expressions if you are very sure that the */
567/* expression is mostly true or mostly false. note that these return */
568/* booleans, not the expression. */
475#define expect_false(expr) expect ((expr) != 0, 0) 569#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
476#define expect_true(expr) expect ((expr) != 0, 1) 570#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
571/* ecb.h end */
572
573#define expect_false(cond) ecb_expect_false (cond)
574#define expect_true(cond) ecb_expect_true (cond)
575#define noinline ecb_noinline
576
477#define inline_size static inline 577#define inline_size ecb_inline
478 578
479#if EV_MINIMAL 579#if EV_FEATURE_CODE
580# define inline_speed ecb_inline
581#else
480# define inline_speed static noinline 582# define inline_speed static noinline
481#else
482# define inline_speed static inline
483#endif 583#endif
484 584
485#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 585#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
486 586
487#if EV_MINPRI == EV_MAXPRI 587#if EV_MINPRI == EV_MAXPRI
… …
500#define ev_active(w) ((W)(w))->active 600#define ev_active(w) ((W)(w))->active
501#define ev_at(w) ((WT)(w))->at 601#define ev_at(w) ((WT)(w))->at
502 602
503#if EV_USE_REALTIME 603#if EV_USE_REALTIME
504/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 604/* 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 */ 605/* giving it a reasonably high chance of working on typical architectures */
506static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 606static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
507#endif 607#endif
508 608
509#if EV_USE_MONOTONIC 609#if EV_USE_MONOTONIC
510static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 610static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
524# include "ev_win32.c" 624# include "ev_win32.c"
525#endif 625#endif
526 626
527/*****************************************************************************/ 627/*****************************************************************************/
528 628
629/* define a suitable floor function (only used by periodics atm) */
630
631#if EV_USE_FLOOR
632# include <math.h>
633# define ev_floor(v) floor (v)
634#else
635
636#include <float.h>
637
638/* a floor() replacement function, should be independent of ev_tstamp type */
639static ev_tstamp noinline
640ev_floor (ev_tstamp v)
641{
642 /* the choice of shift factor is not terribly important */
643#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
644 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
645#else
646 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
647#endif
648
649 /* argument too large for an unsigned long? */
650 if (expect_false (v >= shift))
651 {
652 ev_tstamp f;
653
654 if (v == v - 1.)
655 return v; /* very large number */
656
657 f = shift * ev_floor (v * (1. / shift));
658 return f + ev_floor (v - f);
659 }
660
661 /* special treatment for negative args? */
662 if (expect_false (v < 0.))
663 {
664 ev_tstamp f = -ev_floor (-v);
665
666 return f - (f == v ? 0 : 1);
667 }
668
669 /* fits into an unsigned long */
670 return (unsigned long)v;
671}
672
673#endif
674
675/*****************************************************************************/
676
677#ifdef __linux
678# include <sys/utsname.h>
679#endif
680
681static unsigned int noinline ecb_cold
682ev_linux_version (void)
683{
684#ifdef __linux
685 unsigned int v = 0;
686 struct utsname buf;
687 int i;
688 char *p = buf.release;
689
690 if (uname (&buf))
691 return 0;
692
693 for (i = 3+1; --i; )
694 {
695 unsigned int c = 0;
696
697 for (;;)
698 {
699 if (*p >= '0' && *p <= '9')
700 c = c * 10 + *p++ - '0';
701 else
702 {
703 p += *p == '.';
704 break;
705 }
706 }
707
708 v = (v << 8) | c;
709 }
710
711 return v;
712#else
713 return 0;
714#endif
715}
716
717/*****************************************************************************/
718
719#if EV_AVOID_STDIO
720static void noinline ecb_cold
721ev_printerr (const char *msg)
722{
723 write (STDERR_FILENO, msg, strlen (msg));
724}
725#endif
726
529static void (*syserr_cb)(const char *msg); 727static void (*syserr_cb)(const char *msg);
530 728
531void 729void ecb_cold
532ev_set_syserr_cb (void (*cb)(const char *msg)) 730ev_set_syserr_cb (void (*cb)(const char *msg))
533{ 731{
534 syserr_cb = cb; 732 syserr_cb = cb;
535} 733}
536 734
537static void noinline 735static void noinline ecb_cold
538ev_syserr (const char *msg) 736ev_syserr (const char *msg)
539{ 737{
540 if (!msg) 738 if (!msg)
541 msg = "(libev) system error"; 739 msg = "(libev) system error";
542 740
543 if (syserr_cb) 741 if (syserr_cb)
544 syserr_cb (msg); 742 syserr_cb (msg);
545 else 743 else
546 { 744 {
547#if EV_AVOID_STDIO 745#if EV_AVOID_STDIO
548 write (STDERR_FILENO, msg, strlen (msg)); 746 ev_printerr (msg);
549 write (STDERR_FILENO, ": ", 2); 747 ev_printerr (": ");
550 msg = strerror (errno); 748 ev_printerr (strerror (errno));
551 write (STDERR_FILENO, msg, strlen (msg)); 749 ev_printerr ("\n");
552 write (STDERR_FILENO, "\n", 1);
553#else 750#else
554 perror (msg); 751 perror (msg);
555#endif 752#endif
556 abort (); 753 abort ();
557 } 754 }
558} 755}
559 756
560static void * 757static void *
561ev_realloc_emul (void *ptr, long size) 758ev_realloc_emul (void *ptr, long size)
562{ 759{
760#if __GLIBC__
761 return realloc (ptr, size);
762#else
563 /* some systems, notably openbsd and darwin, fail to properly 763 /* some systems, notably openbsd and darwin, fail to properly
564 * implement realloc (x, 0) (as required by both ansi c-98 and 764 * implement realloc (x, 0) (as required by both ansi c-89 and
565 * the single unix specification, so work around them here. 765 * the single unix specification, so work around them here.
566 */ 766 */
567 767
568 if (size) 768 if (size)
569 return realloc (ptr, size); 769 return realloc (ptr, size);
570 770
571 free (ptr); 771 free (ptr);
572 return 0; 772 return 0;
773#endif
573} 774}
574 775
575static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 776static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
576 777
577void 778void ecb_cold
578ev_set_allocator (void *(*cb)(void *ptr, long size)) 779ev_set_allocator (void *(*cb)(void *ptr, long size))
579{ 780{
580 alloc = cb; 781 alloc = cb;
581} 782}
582 783
… …
586 ptr = alloc (ptr, size); 787 ptr = alloc (ptr, size);
587 788
588 if (!ptr && size) 789 if (!ptr && size)
589 { 790 {
590#if EV_AVOID_STDIO 791#if EV_AVOID_STDIO
591 write (STDERR_FILENO, "libev: memory allocation failed, aborting.", 792 ev_printerr ("(libev) memory allocation failed, aborting.\n");
592 sizeof ("libev: memory allocation failed, aborting.") - 1);
593#else 793#else
594 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 794 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
595#endif 795#endif
596 abort (); 796 abort ();
597 } 797 }
598 798
599 return ptr; 799 return ptr;
… …
616 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 816 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
617 unsigned char unused; 817 unsigned char unused;
618#if EV_USE_EPOLL 818#if EV_USE_EPOLL
619 unsigned int egen; /* generation counter to counter epoll bugs */ 819 unsigned int egen; /* generation counter to counter epoll bugs */
620#endif 820#endif
621#if EV_SELECT_IS_WINSOCKET 821#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
622 SOCKET handle; 822 SOCKET handle;
823#endif
824#if EV_USE_IOCP
825 OVERLAPPED or, ow;
623#endif 826#endif
624} ANFD; 827} ANFD;
625 828
626/* stores the pending event set for a given watcher */ 829/* stores the pending event set for a given watcher */
627typedef struct 830typedef struct
… …
682 885
683 static int ev_default_loop_ptr; 886 static int ev_default_loop_ptr;
684 887
685#endif 888#endif
686 889
687#if EV_MINIMAL < 2 890#if EV_FEATURE_API
688# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 891# 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) 892# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
690# define EV_INVOKE_PENDING invoke_cb (EV_A) 893# define EV_INVOKE_PENDING invoke_cb (EV_A)
691#else 894#else
692# define EV_RELEASE_CB (void)0 895# define EV_RELEASE_CB (void)0
693# define EV_ACQUIRE_CB (void)0 896# define EV_ACQUIRE_CB (void)0
694# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 897# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
695#endif 898#endif
696 899
697#define EVUNLOOP_RECURSE 0x80 900#define EVBREAK_RECURSE 0x80
698 901
699/*****************************************************************************/ 902/*****************************************************************************/
700 903
701#ifndef EV_HAVE_EV_TIME 904#ifndef EV_HAVE_EV_TIME
702ev_tstamp 905ev_tstamp
… …
746 if (delay > 0.) 949 if (delay > 0.)
747 { 950 {
748#if EV_USE_NANOSLEEP 951#if EV_USE_NANOSLEEP
749 struct timespec ts; 952 struct timespec ts;
750 953
751 ts.tv_sec = (time_t)delay; 954 EV_TS_SET (ts, delay);
752 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
753
754 nanosleep (&ts, 0); 955 nanosleep (&ts, 0);
755#elif defined(_WIN32) 956#elif defined(_WIN32)
756 Sleep ((unsigned long)(delay * 1e3)); 957 Sleep ((unsigned long)(delay * 1e3));
757#else 958#else
758 struct timeval tv; 959 struct timeval tv;
759 960
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 */ 961 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
764 /* something not guaranteed by newer posix versions, but guaranteed */ 962 /* something not guaranteed by newer posix versions, but guaranteed */
765 /* by older ones */ 963 /* by older ones */
964 EV_TV_SET (tv, delay);
766 select (0, 0, 0, 0, &tv); 965 select (0, 0, 0, 0, &tv);
767#endif 966#endif
768 } 967 }
769} 968}
770 969
771/*****************************************************************************/ 970/*****************************************************************************/
772 971
773#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 972#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
774 973
775/* find a suitable new size for the given array, */ 974/* find a suitable new size for the given array, */
776/* hopefully by rounding to a ncie-to-malloc size */ 975/* hopefully by rounding to a nice-to-malloc size */
777inline_size int 976inline_size int
778array_nextsize (int elem, int cur, int cnt) 977array_nextsize (int elem, int cur, int cnt)
779{ 978{
780 int ncur = cur + 1; 979 int ncur = cur + 1;
781 980
… …
793 } 992 }
794 993
795 return ncur; 994 return ncur;
796} 995}
797 996
798static noinline void * 997static void * noinline ecb_cold
799array_realloc (int elem, void *base, int *cur, int cnt) 998array_realloc (int elem, void *base, int *cur, int cnt)
800{ 999{
801 *cur = array_nextsize (elem, *cur, cnt); 1000 *cur = array_nextsize (elem, *cur, cnt);
802 return ev_realloc (base, elem * *cur); 1001 return ev_realloc (base, elem * *cur);
803} 1002}
… …
806 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1005 memset ((void *)(base), 0, sizeof (*(base)) * (count))
807 1006
808#define array_needsize(type,base,cur,cnt,init) \ 1007#define array_needsize(type,base,cur,cnt,init) \
809 if (expect_false ((cnt) > (cur))) \ 1008 if (expect_false ((cnt) > (cur))) \
810 { \ 1009 { \
811 int ocur_ = (cur); \ 1010 int ecb_unused ocur_ = (cur); \
812 (base) = (type *)array_realloc \ 1011 (base) = (type *)array_realloc \
813 (sizeof (type), (base), &(cur), (cnt)); \ 1012 (sizeof (type), (base), &(cur), (cnt)); \
814 init ((base) + (ocur_), (cur) - ocur_); \ 1013 init ((base) + (ocur_), (cur) - ocur_); \
815 } 1014 }
816 1015
… …
877} 1076}
878 1077
879/*****************************************************************************/ 1078/*****************************************************************************/
880 1079
881inline_speed void 1080inline_speed void
882fd_event_nc (EV_P_ int fd, int revents) 1081fd_event_nocheck (EV_P_ int fd, int revents)
883{ 1082{
884 ANFD *anfd = anfds + fd; 1083 ANFD *anfd = anfds + fd;
885 ev_io *w; 1084 ev_io *w;
886 1085
887 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1086 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
899fd_event (EV_P_ int fd, int revents) 1098fd_event (EV_P_ int fd, int revents)
900{ 1099{
901 ANFD *anfd = anfds + fd; 1100 ANFD *anfd = anfds + fd;
902 1101
903 if (expect_true (!anfd->reify)) 1102 if (expect_true (!anfd->reify))
904 fd_event_nc (EV_A_ fd, revents); 1103 fd_event_nocheck (EV_A_ fd, revents);
905} 1104}
906 1105
907void 1106void
908ev_feed_fd_event (EV_P_ int fd, int revents) 1107ev_feed_fd_event (EV_P_ int fd, int revents)
909{ 1108{
910 if (fd >= 0 && fd < anfdmax) 1109 if (fd >= 0 && fd < anfdmax)
911 fd_event_nc (EV_A_ fd, revents); 1110 fd_event_nocheck (EV_A_ fd, revents);
912} 1111}
913 1112
914/* make sure the external fd watch events are in-sync */ 1113/* make sure the external fd watch events are in-sync */
915/* with the kernel/libev internal state */ 1114/* with the kernel/libev internal state */
916inline_size void 1115inline_size void
917fd_reify (EV_P) 1116fd_reify (EV_P)
918{ 1117{
919 int i; 1118 int i;
920 1119
1120#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1121 for (i = 0; i < fdchangecnt; ++i)
1122 {
1123 int fd = fdchanges [i];
1124 ANFD *anfd = anfds + fd;
1125
1126 if (anfd->reify & EV__IOFDSET && anfd->head)
1127 {
1128 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1129
1130 if (handle != anfd->handle)
1131 {
1132 unsigned long arg;
1133
1134 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1135
1136 /* handle changed, but fd didn't - we need to do it in two steps */
1137 backend_modify (EV_A_ fd, anfd->events, 0);
1138 anfd->events = 0;
1139 anfd->handle = handle;
1140 }
1141 }
1142 }
1143#endif
1144
921 for (i = 0; i < fdchangecnt; ++i) 1145 for (i = 0; i < fdchangecnt; ++i)
922 { 1146 {
923 int fd = fdchanges [i]; 1147 int fd = fdchanges [i];
924 ANFD *anfd = anfds + fd; 1148 ANFD *anfd = anfds + fd;
925 ev_io *w; 1149 ev_io *w;
926 1150
927 unsigned char events = 0; 1151 unsigned char o_events = anfd->events;
1152 unsigned char o_reify = anfd->reify;
928 1153
929 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1154 anfd->reify = 0;
930 events |= (unsigned char)w->events;
931 1155
932#if EV_SELECT_IS_WINSOCKET 1156 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
933 if (events)
934 { 1157 {
935 unsigned long arg; 1158 anfd->events = 0;
936 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1159
937 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1160 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1161 anfd->events |= (unsigned char)w->events;
1162
1163 if (o_events != anfd->events)
1164 o_reify = EV__IOFDSET; /* actually |= */
938 } 1165 }
939#endif
940 1166
941 { 1167 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); 1168 backend_modify (EV_A_ fd, o_events, anfd->events);
950 }
951 } 1169 }
952 1170
953 fdchangecnt = 0; 1171 fdchangecnt = 0;
954} 1172}
955 1173
… …
967 fdchanges [fdchangecnt - 1] = fd; 1185 fdchanges [fdchangecnt - 1] = fd;
968 } 1186 }
969} 1187}
970 1188
971/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1189/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
972inline_speed void 1190inline_speed void ecb_cold
973fd_kill (EV_P_ int fd) 1191fd_kill (EV_P_ int fd)
974{ 1192{
975 ev_io *w; 1193 ev_io *w;
976 1194
977 while ((w = (ev_io *)anfds [fd].head)) 1195 while ((w = (ev_io *)anfds [fd].head))
… …
979 ev_io_stop (EV_A_ w); 1197 ev_io_stop (EV_A_ w);
980 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1198 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
981 } 1199 }
982} 1200}
983 1201
984/* check whether the given fd is atcually valid, for error recovery */ 1202/* check whether the given fd is actually valid, for error recovery */
985inline_size int 1203inline_size int ecb_cold
986fd_valid (int fd) 1204fd_valid (int fd)
987{ 1205{
988#ifdef _WIN32 1206#ifdef _WIN32
989 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1207 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
990#else 1208#else
991 return fcntl (fd, F_GETFD) != -1; 1209 return fcntl (fd, F_GETFD) != -1;
992#endif 1210#endif
993} 1211}
994 1212
995/* called on EBADF to verify fds */ 1213/* called on EBADF to verify fds */
996static void noinline 1214static void noinline ecb_cold
997fd_ebadf (EV_P) 1215fd_ebadf (EV_P)
998{ 1216{
999 int fd; 1217 int fd;
1000 1218
1001 for (fd = 0; fd < anfdmax; ++fd) 1219 for (fd = 0; fd < anfdmax; ++fd)
… …
1003 if (!fd_valid (fd) && errno == EBADF) 1221 if (!fd_valid (fd) && errno == EBADF)
1004 fd_kill (EV_A_ fd); 1222 fd_kill (EV_A_ fd);
1005} 1223}
1006 1224
1007/* called on ENOMEM in select/poll to kill some fds and retry */ 1225/* called on ENOMEM in select/poll to kill some fds and retry */
1008static void noinline 1226static void noinline ecb_cold
1009fd_enomem (EV_P) 1227fd_enomem (EV_P)
1010{ 1228{
1011 int fd; 1229 int fd;
1012 1230
1013 for (fd = anfdmax; fd--; ) 1231 for (fd = anfdmax; fd--; )
… …
1031 anfds [fd].emask = 0; 1249 anfds [fd].emask = 0;
1032 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1250 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1033 } 1251 }
1034} 1252}
1035 1253
1254/* used to prepare libev internal fd's */
1255/* this is not fork-safe */
1256inline_speed void
1257fd_intern (int fd)
1258{
1259#ifdef _WIN32
1260 unsigned long arg = 1;
1261 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1262#else
1263 fcntl (fd, F_SETFD, FD_CLOEXEC);
1264 fcntl (fd, F_SETFL, O_NONBLOCK);
1265#endif
1266}
1267
1036/*****************************************************************************/ 1268/*****************************************************************************/
1037 1269
1038/* 1270/*
1039 * the heap functions want a real array index. array index 0 uis guaranteed to not 1271 * 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 1272 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1041 * the branching factor of the d-tree. 1273 * the branching factor of the d-tree.
1042 */ 1274 */
1043 1275
1044/* 1276/*
… …
1192 1424
1193static ANSIG signals [EV_NSIG - 1]; 1425static ANSIG signals [EV_NSIG - 1];
1194 1426
1195/*****************************************************************************/ 1427/*****************************************************************************/
1196 1428
1197/* used to prepare libev internal fd's */ 1429#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 1430
1211static void noinline 1431static void noinline ecb_cold
1212evpipe_init (EV_P) 1432evpipe_init (EV_P)
1213{ 1433{
1214 if (!ev_is_active (&pipe_w)) 1434 if (!ev_is_active (&pipe_w))
1215 { 1435 {
1216#if EV_USE_EVENTFD 1436# if EV_USE_EVENTFD
1217 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1437 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1218 if (evfd < 0 && errno == EINVAL) 1438 if (evfd < 0 && errno == EINVAL)
1219 evfd = eventfd (0, 0); 1439 evfd = eventfd (0, 0);
1220 1440
1221 if (evfd >= 0) 1441 if (evfd >= 0)
… …
1223 evpipe [0] = -1; 1443 evpipe [0] = -1;
1224 fd_intern (evfd); /* doing it twice doesn't hurt */ 1444 fd_intern (evfd); /* doing it twice doesn't hurt */
1225 ev_io_set (&pipe_w, evfd, EV_READ); 1445 ev_io_set (&pipe_w, evfd, EV_READ);
1226 } 1446 }
1227 else 1447 else
1228#endif 1448# endif
1229 { 1449 {
1230 while (pipe (evpipe)) 1450 while (pipe (evpipe))
1231 ev_syserr ("(libev) error creating signal/async pipe"); 1451 ev_syserr ("(libev) error creating signal/async pipe");
1232 1452
1233 fd_intern (evpipe [0]); 1453 fd_intern (evpipe [0]);
… …
1238 ev_io_start (EV_A_ &pipe_w); 1458 ev_io_start (EV_A_ &pipe_w);
1239 ev_unref (EV_A); /* watcher should not keep loop alive */ 1459 ev_unref (EV_A); /* watcher should not keep loop alive */
1240 } 1460 }
1241} 1461}
1242 1462
1243inline_size void 1463inline_speed void
1244evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1464evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1245{ 1465{
1246 if (!*flag) 1466 if (expect_true (*flag))
1467 return;
1468
1469 *flag = 1;
1470
1471 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1472
1473 pipe_write_skipped = 1;
1474
1475 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1476
1477 if (pipe_write_wanted)
1247 { 1478 {
1479 int old_errno;
1480
1481 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1482
1248 int old_errno = errno; /* save errno because write might clobber it */ 1483 old_errno = errno; /* save errno because write will clobber it */
1249
1250 *flag = 1;
1251 1484
1252#if EV_USE_EVENTFD 1485#if EV_USE_EVENTFD
1253 if (evfd >= 0) 1486 if (evfd >= 0)
1254 { 1487 {
1255 uint64_t counter = 1; 1488 uint64_t counter = 1;
1256 write (evfd, &counter, sizeof (uint64_t)); 1489 write (evfd, &counter, sizeof (uint64_t));
1257 } 1490 }
1258 else 1491 else
1259#endif 1492#endif
1493 {
1494 /* win32 people keep sending patches that change this write() to send() */
1495 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1496 /* so when you think this write should be a send instead, please find out */
1497 /* where your send() is from - it's definitely not the microsoft send, and */
1498 /* tell me. thank you. */
1260 write (evpipe [1], &old_errno, 1); 1499 write (evpipe [1], &(evpipe [1]), 1);
1500 }
1261 1501
1262 errno = old_errno; 1502 errno = old_errno;
1263 } 1503 }
1264} 1504}
1265 1505
… …
1268static void 1508static void
1269pipecb (EV_P_ ev_io *iow, int revents) 1509pipecb (EV_P_ ev_io *iow, int revents)
1270{ 1510{
1271 int i; 1511 int i;
1272 1512
1513 if (revents & EV_READ)
1514 {
1273#if EV_USE_EVENTFD 1515#if EV_USE_EVENTFD
1274 if (evfd >= 0) 1516 if (evfd >= 0)
1275 { 1517 {
1276 uint64_t counter; 1518 uint64_t counter;
1277 read (evfd, &counter, sizeof (uint64_t)); 1519 read (evfd, &counter, sizeof (uint64_t));
1278 } 1520 }
1279 else 1521 else
1280#endif 1522#endif
1281 { 1523 {
1282 char dummy; 1524 char dummy;
1525 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1283 read (evpipe [0], &dummy, 1); 1526 read (evpipe [0], &dummy, 1);
1527 }
1284 } 1528 }
1285 1529
1530 pipe_write_skipped = 0;
1531
1532#if EV_SIGNAL_ENABLE
1286 if (sig_pending) 1533 if (sig_pending)
1287 { 1534 {
1288 sig_pending = 0; 1535 sig_pending = 0;
1289 1536
1290 for (i = EV_NSIG - 1; i--; ) 1537 for (i = EV_NSIG - 1; i--; )
1291 if (expect_false (signals [i].pending)) 1538 if (expect_false (signals [i].pending))
1292 ev_feed_signal_event (EV_A_ i + 1); 1539 ev_feed_signal_event (EV_A_ i + 1);
1293 } 1540 }
1541#endif
1294 1542
1295#if EV_ASYNC_ENABLE 1543#if EV_ASYNC_ENABLE
1296 if (async_pending) 1544 if (async_pending)
1297 { 1545 {
1298 async_pending = 0; 1546 async_pending = 0;
… …
1307#endif 1555#endif
1308} 1556}
1309 1557
1310/*****************************************************************************/ 1558/*****************************************************************************/
1311 1559
1560void
1561ev_feed_signal (int signum)
1562{
1563#if EV_MULTIPLICITY
1564 EV_P = signals [signum - 1].loop;
1565
1566 if (!EV_A)
1567 return;
1568#endif
1569
1570 if (!ev_active (&pipe_w))
1571 return;
1572
1573 signals [signum - 1].pending = 1;
1574 evpipe_write (EV_A_ &sig_pending);
1575}
1576
1312static void 1577static void
1313ev_sighandler (int signum) 1578ev_sighandler (int signum)
1314{ 1579{
1315#if EV_MULTIPLICITY
1316 EV_P = signals [signum - 1].loop;
1317#endif
1318
1319#ifdef _WIN32 1580#ifdef _WIN32
1320 signal (signum, ev_sighandler); 1581 signal (signum, ev_sighandler);
1321#endif 1582#endif
1322 1583
1323 signals [signum - 1].pending = 1; 1584 ev_feed_signal (signum);
1324 evpipe_write (EV_A_ &sig_pending);
1325} 1585}
1326 1586
1327void noinline 1587void noinline
1328ev_feed_signal_event (EV_P_ int signum) 1588ev_feed_signal_event (EV_P_ int signum)
1329{ 1589{
… …
1366 break; 1626 break;
1367 } 1627 }
1368} 1628}
1369#endif 1629#endif
1370 1630
1631#endif
1632
1371/*****************************************************************************/ 1633/*****************************************************************************/
1372 1634
1635#if EV_CHILD_ENABLE
1373static WL childs [EV_PID_HASHSIZE]; 1636static WL childs [EV_PID_HASHSIZE];
1374
1375#ifndef _WIN32
1376 1637
1377static ev_signal childev; 1638static ev_signal childev;
1378 1639
1379#ifndef WIFCONTINUED 1640#ifndef WIFCONTINUED
1380# define WIFCONTINUED(status) 0 1641# define WIFCONTINUED(status) 0
… …
1385child_reap (EV_P_ int chain, int pid, int status) 1646child_reap (EV_P_ int chain, int pid, int status)
1386{ 1647{
1387 ev_child *w; 1648 ev_child *w;
1388 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1649 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1389 1650
1390 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1651 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1391 { 1652 {
1392 if ((w->pid == pid || !w->pid) 1653 if ((w->pid == pid || !w->pid)
1393 && (!traced || (w->flags & 1))) 1654 && (!traced || (w->flags & 1)))
1394 { 1655 {
1395 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1656 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 */ 1681 /* 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 */ 1682 /* 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); 1683 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1423 1684
1424 child_reap (EV_A_ pid, pid, status); 1685 child_reap (EV_A_ pid, pid, status);
1425 if (EV_PID_HASHSIZE > 1) 1686 if ((EV_PID_HASHSIZE) > 1)
1426 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1687 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1427} 1688}
1428 1689
1429#endif 1690#endif
1430 1691
1431/*****************************************************************************/ 1692/*****************************************************************************/
1432 1693
1694#if EV_USE_IOCP
1695# include "ev_iocp.c"
1696#endif
1433#if EV_USE_PORT 1697#if EV_USE_PORT
1434# include "ev_port.c" 1698# include "ev_port.c"
1435#endif 1699#endif
1436#if EV_USE_KQUEUE 1700#if EV_USE_KQUEUE
1437# include "ev_kqueue.c" 1701# include "ev_kqueue.c"
… …
1444#endif 1708#endif
1445#if EV_USE_SELECT 1709#if EV_USE_SELECT
1446# include "ev_select.c" 1710# include "ev_select.c"
1447#endif 1711#endif
1448 1712
1449int 1713int ecb_cold
1450ev_version_major (void) 1714ev_version_major (void)
1451{ 1715{
1452 return EV_VERSION_MAJOR; 1716 return EV_VERSION_MAJOR;
1453} 1717}
1454 1718
1455int 1719int ecb_cold
1456ev_version_minor (void) 1720ev_version_minor (void)
1457{ 1721{
1458 return EV_VERSION_MINOR; 1722 return EV_VERSION_MINOR;
1459} 1723}
1460 1724
1461/* return true if we are running with elevated privileges and should ignore env variables */ 1725/* return true if we are running with elevated privileges and should ignore env variables */
1462int inline_size 1726int inline_size ecb_cold
1463enable_secure (void) 1727enable_secure (void)
1464{ 1728{
1465#ifdef _WIN32 1729#ifdef _WIN32
1466 return 0; 1730 return 0;
1467#else 1731#else
1468 return getuid () != geteuid () 1732 return getuid () != geteuid ()
1469 || getgid () != getegid (); 1733 || getgid () != getegid ();
1470#endif 1734#endif
1471} 1735}
1472 1736
1473unsigned int 1737unsigned int ecb_cold
1474ev_supported_backends (void) 1738ev_supported_backends (void)
1475{ 1739{
1476 unsigned int flags = 0; 1740 unsigned int flags = 0;
1477 1741
1478 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1742 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1482 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1746 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1483 1747
1484 return flags; 1748 return flags;
1485} 1749}
1486 1750
1487unsigned int 1751unsigned int ecb_cold
1488ev_recommended_backends (void) 1752ev_recommended_backends (void)
1489{ 1753{
1490 unsigned int flags = ev_supported_backends (); 1754 unsigned int flags = ev_supported_backends ();
1491 1755
1492#ifndef __NetBSD__ 1756#ifndef __NetBSD__
… …
1497#ifdef __APPLE__ 1761#ifdef __APPLE__
1498 /* only select works correctly on that "unix-certified" platform */ 1762 /* only select works correctly on that "unix-certified" platform */
1499 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1763 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1500 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1764 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1501#endif 1765#endif
1766#ifdef __FreeBSD__
1767 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1768#endif
1502 1769
1503 return flags; 1770 return flags;
1504} 1771}
1505 1772
1506unsigned int 1773unsigned int ecb_cold
1507ev_embeddable_backends (void) 1774ev_embeddable_backends (void)
1508{ 1775{
1509 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1776 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1510 1777
1511 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1778 /* 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 */ 1779 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1513 flags &= ~EVBACKEND_EPOLL; 1780 flags &= ~EVBACKEND_EPOLL;
1514 1781
1515 return flags; 1782 return flags;
1516} 1783}
1517 1784
1518unsigned int 1785unsigned int
1519ev_backend (EV_P) 1786ev_backend (EV_P)
1520{ 1787{
1521 return backend; 1788 return backend;
1522} 1789}
1523 1790
1524#if EV_MINIMAL < 2 1791#if EV_FEATURE_API
1525unsigned int 1792unsigned int
1526ev_loop_count (EV_P) 1793ev_iteration (EV_P)
1527{ 1794{
1528 return loop_count; 1795 return loop_count;
1529} 1796}
1530 1797
1531unsigned int 1798unsigned int
1532ev_loop_depth (EV_P) 1799ev_depth (EV_P)
1533{ 1800{
1534 return loop_depth; 1801 return loop_depth;
1535} 1802}
1536 1803
1537void 1804void
… …
1556ev_userdata (EV_P) 1823ev_userdata (EV_P)
1557{ 1824{
1558 return userdata; 1825 return userdata;
1559} 1826}
1560 1827
1828void
1561void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 1829ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1562{ 1830{
1563 invoke_cb = invoke_pending_cb; 1831 invoke_cb = invoke_pending_cb;
1564} 1832}
1565 1833
1834void
1566void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 1835ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1567{ 1836{
1568 release_cb = release; 1837 release_cb = release;
1569 acquire_cb = acquire; 1838 acquire_cb = acquire;
1570} 1839}
1571#endif 1840#endif
1572 1841
1573/* initialise a loop structure, must be zero-initialised */ 1842/* initialise a loop structure, must be zero-initialised */
1574static void noinline 1843static void noinline ecb_cold
1575loop_init (EV_P_ unsigned int flags) 1844loop_init (EV_P_ unsigned int flags)
1576{ 1845{
1577 if (!backend) 1846 if (!backend)
1578 { 1847 {
1848 origflags = flags;
1849
1579#if EV_USE_REALTIME 1850#if EV_USE_REALTIME
1580 if (!have_realtime) 1851 if (!have_realtime)
1581 { 1852 {
1582 struct timespec ts; 1853 struct timespec ts;
1583 1854
… …
1605 if (!(flags & EVFLAG_NOENV) 1876 if (!(flags & EVFLAG_NOENV)
1606 && !enable_secure () 1877 && !enable_secure ()
1607 && getenv ("LIBEV_FLAGS")) 1878 && getenv ("LIBEV_FLAGS"))
1608 flags = atoi (getenv ("LIBEV_FLAGS")); 1879 flags = atoi (getenv ("LIBEV_FLAGS"));
1609 1880
1610 ev_rt_now = ev_time (); 1881 ev_rt_now = ev_time ();
1611 mn_now = get_clock (); 1882 mn_now = get_clock ();
1612 now_floor = mn_now; 1883 now_floor = mn_now;
1613 rtmn_diff = ev_rt_now - mn_now; 1884 rtmn_diff = ev_rt_now - mn_now;
1614#if EV_MINIMAL < 2 1885#if EV_FEATURE_API
1615 invoke_cb = ev_invoke_pending; 1886 invoke_cb = ev_invoke_pending;
1616#endif 1887#endif
1617 1888
1618 io_blocktime = 0.; 1889 io_blocktime = 0.;
1619 timeout_blocktime = 0.; 1890 timeout_blocktime = 0.;
1620 backend = 0; 1891 backend = 0;
1621 backend_fd = -1; 1892 backend_fd = -1;
1622 sig_pending = 0; 1893 sig_pending = 0;
1623#if EV_ASYNC_ENABLE 1894#if EV_ASYNC_ENABLE
1624 async_pending = 0; 1895 async_pending = 0;
1625#endif 1896#endif
1897 pipe_write_skipped = 0;
1898 pipe_write_wanted = 0;
1626#if EV_USE_INOTIFY 1899#if EV_USE_INOTIFY
1627 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1900 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1628#endif 1901#endif
1629#if EV_USE_SIGNALFD 1902#if EV_USE_SIGNALFD
1630 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1903 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1631#endif 1904#endif
1632 1905
1633 if (!(flags & 0x0000ffffU)) 1906 if (!(flags & EVBACKEND_MASK))
1634 flags |= ev_recommended_backends (); 1907 flags |= ev_recommended_backends ();
1635 1908
1909#if EV_USE_IOCP
1910 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1911#endif
1636#if EV_USE_PORT 1912#if EV_USE_PORT
1637 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1913 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1638#endif 1914#endif
1639#if EV_USE_KQUEUE 1915#if EV_USE_KQUEUE
1640 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1916 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1649 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1925 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1650#endif 1926#endif
1651 1927
1652 ev_prepare_init (&pending_w, pendingcb); 1928 ev_prepare_init (&pending_w, pendingcb);
1653 1929
1930#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1654 ev_init (&pipe_w, pipecb); 1931 ev_init (&pipe_w, pipecb);
1655 ev_set_priority (&pipe_w, EV_MAXPRI); 1932 ev_set_priority (&pipe_w, EV_MAXPRI);
1933#endif
1656 } 1934 }
1657} 1935}
1658 1936
1659/* free up a loop structure */ 1937/* free up a loop structure */
1660static void noinline 1938void ecb_cold
1661loop_destroy (EV_P) 1939ev_loop_destroy (EV_P)
1662{ 1940{
1663 int i; 1941 int i;
1942
1943#if EV_MULTIPLICITY
1944 /* mimic free (0) */
1945 if (!EV_A)
1946 return;
1947#endif
1948
1949#if EV_CLEANUP_ENABLE
1950 /* queue cleanup watchers (and execute them) */
1951 if (expect_false (cleanupcnt))
1952 {
1953 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1954 EV_INVOKE_PENDING;
1955 }
1956#endif
1957
1958#if EV_CHILD_ENABLE
1959 if (ev_is_active (&childev))
1960 {
1961 ev_ref (EV_A); /* child watcher */
1962 ev_signal_stop (EV_A_ &childev);
1963 }
1964#endif
1664 1965
1665 if (ev_is_active (&pipe_w)) 1966 if (ev_is_active (&pipe_w))
1666 { 1967 {
1667 /*ev_ref (EV_A);*/ 1968 /*ev_ref (EV_A);*/
1668 /*ev_io_stop (EV_A_ &pipe_w);*/ 1969 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1690#endif 1991#endif
1691 1992
1692 if (backend_fd >= 0) 1993 if (backend_fd >= 0)
1693 close (backend_fd); 1994 close (backend_fd);
1694 1995
1996#if EV_USE_IOCP
1997 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1998#endif
1695#if EV_USE_PORT 1999#if EV_USE_PORT
1696 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2000 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1697#endif 2001#endif
1698#if EV_USE_KQUEUE 2002#if EV_USE_KQUEUE
1699 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2003 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1726 array_free (periodic, EMPTY); 2030 array_free (periodic, EMPTY);
1727#endif 2031#endif
1728#if EV_FORK_ENABLE 2032#if EV_FORK_ENABLE
1729 array_free (fork, EMPTY); 2033 array_free (fork, EMPTY);
1730#endif 2034#endif
2035#if EV_CLEANUP_ENABLE
2036 array_free (cleanup, EMPTY);
2037#endif
1731 array_free (prepare, EMPTY); 2038 array_free (prepare, EMPTY);
1732 array_free (check, EMPTY); 2039 array_free (check, EMPTY);
1733#if EV_ASYNC_ENABLE 2040#if EV_ASYNC_ENABLE
1734 array_free (async, EMPTY); 2041 array_free (async, EMPTY);
1735#endif 2042#endif
1736 2043
1737 backend = 0; 2044 backend = 0;
2045
2046#if EV_MULTIPLICITY
2047 if (ev_is_default_loop (EV_A))
2048#endif
2049 ev_default_loop_ptr = 0;
2050#if EV_MULTIPLICITY
2051 else
2052 ev_free (EV_A);
2053#endif
1738} 2054}
1739 2055
1740#if EV_USE_INOTIFY 2056#if EV_USE_INOTIFY
1741inline_size void infy_fork (EV_P); 2057inline_size void infy_fork (EV_P);
1742#endif 2058#endif
… …
1757 infy_fork (EV_A); 2073 infy_fork (EV_A);
1758#endif 2074#endif
1759 2075
1760 if (ev_is_active (&pipe_w)) 2076 if (ev_is_active (&pipe_w))
1761 { 2077 {
1762 /* this "locks" the handlers against writing to the pipe */ 2078 /* 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 2079
1769 ev_ref (EV_A); 2080 ev_ref (EV_A);
1770 ev_io_stop (EV_A_ &pipe_w); 2081 ev_io_stop (EV_A_ &pipe_w);
1771 2082
1772#if EV_USE_EVENTFD 2083#if EV_USE_EVENTFD
… …
1778 { 2089 {
1779 EV_WIN32_CLOSE_FD (evpipe [0]); 2090 EV_WIN32_CLOSE_FD (evpipe [0]);
1780 EV_WIN32_CLOSE_FD (evpipe [1]); 2091 EV_WIN32_CLOSE_FD (evpipe [1]);
1781 } 2092 }
1782 2093
2094#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1783 evpipe_init (EV_A); 2095 evpipe_init (EV_A);
1784 /* now iterate over everything, in case we missed something */ 2096 /* now iterate over everything, in case we missed something */
1785 pipecb (EV_A_ &pipe_w, EV_READ); 2097 pipecb (EV_A_ &pipe_w, EV_READ);
2098#endif
1786 } 2099 }
1787 2100
1788 postfork = 0; 2101 postfork = 0;
1789} 2102}
1790 2103
1791#if EV_MULTIPLICITY 2104#if EV_MULTIPLICITY
1792 2105
1793struct ev_loop * 2106struct ev_loop * ecb_cold
1794ev_loop_new (unsigned int flags) 2107ev_loop_new (unsigned int flags)
1795{ 2108{
1796 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2109 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1797 2110
1798 memset (EV_A, 0, sizeof (struct ev_loop)); 2111 memset (EV_A, 0, sizeof (struct ev_loop));
1799 loop_init (EV_A_ flags); 2112 loop_init (EV_A_ flags);
1800 2113
1801 if (ev_backend (EV_A)) 2114 if (ev_backend (EV_A))
1802 return EV_A; 2115 return EV_A;
1803 2116
2117 ev_free (EV_A);
1804 return 0; 2118 return 0;
1805} 2119}
1806 2120
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 */ 2121#endif /* multiplicity */
1820 2122
1821#if EV_VERIFY 2123#if EV_VERIFY
1822static void noinline 2124static void noinline ecb_cold
1823verify_watcher (EV_P_ W w) 2125verify_watcher (EV_P_ W w)
1824{ 2126{
1825 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2127 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1826 2128
1827 if (w->pending) 2129 if (w->pending)
1828 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2130 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1829} 2131}
1830 2132
1831static void noinline 2133static void noinline ecb_cold
1832verify_heap (EV_P_ ANHE *heap, int N) 2134verify_heap (EV_P_ ANHE *heap, int N)
1833{ 2135{
1834 int i; 2136 int i;
1835 2137
1836 for (i = HEAP0; i < N + HEAP0; ++i) 2138 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1841 2143
1842 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2144 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1843 } 2145 }
1844} 2146}
1845 2147
1846static void noinline 2148static void noinline ecb_cold
1847array_verify (EV_P_ W *ws, int cnt) 2149array_verify (EV_P_ W *ws, int cnt)
1848{ 2150{
1849 while (cnt--) 2151 while (cnt--)
1850 { 2152 {
1851 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2153 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1852 verify_watcher (EV_A_ ws [cnt]); 2154 verify_watcher (EV_A_ ws [cnt]);
1853 } 2155 }
1854} 2156}
1855#endif 2157#endif
1856 2158
1857#if EV_MINIMAL < 2 2159#if EV_FEATURE_API
1858void 2160void ecb_cold
1859ev_loop_verify (EV_P) 2161ev_verify (EV_P)
1860{ 2162{
1861#if EV_VERIFY 2163#if EV_VERIFY
1862 int i; 2164 int i;
1863 WL w; 2165 WL w;
1864 2166
… …
1898#if EV_FORK_ENABLE 2200#if EV_FORK_ENABLE
1899 assert (forkmax >= forkcnt); 2201 assert (forkmax >= forkcnt);
1900 array_verify (EV_A_ (W *)forks, forkcnt); 2202 array_verify (EV_A_ (W *)forks, forkcnt);
1901#endif 2203#endif
1902 2204
2205#if EV_CLEANUP_ENABLE
2206 assert (cleanupmax >= cleanupcnt);
2207 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2208#endif
2209
1903#if EV_ASYNC_ENABLE 2210#if EV_ASYNC_ENABLE
1904 assert (asyncmax >= asynccnt); 2211 assert (asyncmax >= asynccnt);
1905 array_verify (EV_A_ (W *)asyncs, asynccnt); 2212 array_verify (EV_A_ (W *)asyncs, asynccnt);
1906#endif 2213#endif
1907 2214
2215#if EV_PREPARE_ENABLE
1908 assert (preparemax >= preparecnt); 2216 assert (preparemax >= preparecnt);
1909 array_verify (EV_A_ (W *)prepares, preparecnt); 2217 array_verify (EV_A_ (W *)prepares, preparecnt);
2218#endif
1910 2219
2220#if EV_CHECK_ENABLE
1911 assert (checkmax >= checkcnt); 2221 assert (checkmax >= checkcnt);
1912 array_verify (EV_A_ (W *)checks, checkcnt); 2222 array_verify (EV_A_ (W *)checks, checkcnt);
2223#endif
1913 2224
1914# if 0 2225# if 0
2226#if EV_CHILD_ENABLE
1915 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2227 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) 2228 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2229#endif
1917# endif 2230# endif
1918#endif 2231#endif
1919} 2232}
1920#endif 2233#endif
1921 2234
1922#if EV_MULTIPLICITY 2235#if EV_MULTIPLICITY
1923struct ev_loop * 2236struct ev_loop * ecb_cold
1924ev_default_loop_init (unsigned int flags)
1925#else 2237#else
1926int 2238int
2239#endif
1927ev_default_loop (unsigned int flags) 2240ev_default_loop (unsigned int flags)
1928#endif
1929{ 2241{
1930 if (!ev_default_loop_ptr) 2242 if (!ev_default_loop_ptr)
1931 { 2243 {
1932#if EV_MULTIPLICITY 2244#if EV_MULTIPLICITY
1933 EV_P = ev_default_loop_ptr = &default_loop_struct; 2245 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1937 2249
1938 loop_init (EV_A_ flags); 2250 loop_init (EV_A_ flags);
1939 2251
1940 if (ev_backend (EV_A)) 2252 if (ev_backend (EV_A))
1941 { 2253 {
1942#ifndef _WIN32 2254#if EV_CHILD_ENABLE
1943 ev_signal_init (&childev, childcb, SIGCHLD); 2255 ev_signal_init (&childev, childcb, SIGCHLD);
1944 ev_set_priority (&childev, EV_MAXPRI); 2256 ev_set_priority (&childev, EV_MAXPRI);
1945 ev_signal_start (EV_A_ &childev); 2257 ev_signal_start (EV_A_ &childev);
1946 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2258 ev_unref (EV_A); /* child watcher should not keep loop alive */
1947#endif 2259#endif
… …
1952 2264
1953 return ev_default_loop_ptr; 2265 return ev_default_loop_ptr;
1954} 2266}
1955 2267
1956void 2268void
1957ev_default_destroy (void) 2269ev_loop_fork (EV_P)
1958{ 2270{
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 */ 2271 postfork = 1; /* must be in line with ev_default_fork */
1981} 2272}
1982 2273
1983/*****************************************************************************/ 2274/*****************************************************************************/
1984 2275
1985void 2276void
… …
2007 2298
2008 for (pri = NUMPRI; pri--; ) 2299 for (pri = NUMPRI; pri--; )
2009 while (pendingcnt [pri]) 2300 while (pendingcnt [pri])
2010 { 2301 {
2011 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2302 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 2303
2016 p->w->pending = 0; 2304 p->w->pending = 0;
2017 EV_CB_INVOKE (p->w, p->events); 2305 EV_CB_INVOKE (p->w, p->events);
2018 EV_FREQUENT_CHECK; 2306 EV_FREQUENT_CHECK;
2019 } 2307 }
… …
2076 EV_FREQUENT_CHECK; 2364 EV_FREQUENT_CHECK;
2077 feed_reverse (EV_A_ (W)w); 2365 feed_reverse (EV_A_ (W)w);
2078 } 2366 }
2079 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2367 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2080 2368
2081 feed_reverse_done (EV_A_ EV_TIMEOUT); 2369 feed_reverse_done (EV_A_ EV_TIMER);
2082 } 2370 }
2083} 2371}
2084 2372
2085#if EV_PERIODIC_ENABLE 2373#if EV_PERIODIC_ENABLE
2374
2375static void noinline
2376periodic_recalc (EV_P_ ev_periodic *w)
2377{
2378 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2379 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2380
2381 /* the above almost always errs on the low side */
2382 while (at <= ev_rt_now)
2383 {
2384 ev_tstamp nat = at + w->interval;
2385
2386 /* when resolution fails us, we use ev_rt_now */
2387 if (expect_false (nat == at))
2388 {
2389 at = ev_rt_now;
2390 break;
2391 }
2392
2393 at = nat;
2394 }
2395
2396 ev_at (w) = at;
2397}
2398
2086/* make periodics pending */ 2399/* make periodics pending */
2087inline_size void 2400inline_size void
2088periodics_reify (EV_P) 2401periodics_reify (EV_P)
2089{ 2402{
2090 EV_FREQUENT_CHECK; 2403 EV_FREQUENT_CHECK;
… …
2109 ANHE_at_cache (periodics [HEAP0]); 2422 ANHE_at_cache (periodics [HEAP0]);
2110 downheap (periodics, periodiccnt, HEAP0); 2423 downheap (periodics, periodiccnt, HEAP0);
2111 } 2424 }
2112 else if (w->interval) 2425 else if (w->interval)
2113 { 2426 {
2114 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2427 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]); 2428 ANHE_at_cache (periodics [HEAP0]);
2129 downheap (periodics, periodiccnt, HEAP0); 2429 downheap (periodics, periodiccnt, HEAP0);
2130 } 2430 }
2131 else 2431 else
2132 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2432 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2139 feed_reverse_done (EV_A_ EV_PERIODIC); 2439 feed_reverse_done (EV_A_ EV_PERIODIC);
2140 } 2440 }
2141} 2441}
2142 2442
2143/* simply recalculate all periodics */ 2443/* simply recalculate all periodics */
2144/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2444/* TODO: maybe ensure that at least one event happens when jumping forward? */
2145static void noinline 2445static void noinline ecb_cold
2146periodics_reschedule (EV_P) 2446periodics_reschedule (EV_P)
2147{ 2447{
2148 int i; 2448 int i;
2149 2449
2150 /* adjust periodics after time jump */ 2450 /* adjust periodics after time jump */
… …
2153 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2453 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2154 2454
2155 if (w->reschedule_cb) 2455 if (w->reschedule_cb)
2156 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2456 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2157 else if (w->interval) 2457 else if (w->interval)
2158 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2458 periodic_recalc (EV_A_ w);
2159 2459
2160 ANHE_at_cache (periodics [i]); 2460 ANHE_at_cache (periodics [i]);
2161 } 2461 }
2162 2462
2163 reheap (periodics, periodiccnt); 2463 reheap (periodics, periodiccnt);
2164} 2464}
2165#endif 2465#endif
2166 2466
2167/* adjust all timers by a given offset */ 2467/* adjust all timers by a given offset */
2168static void noinline 2468static void noinline ecb_cold
2169timers_reschedule (EV_P_ ev_tstamp adjust) 2469timers_reschedule (EV_P_ ev_tstamp adjust)
2170{ 2470{
2171 int i; 2471 int i;
2172 2472
2173 for (i = 0; i < timercnt; ++i) 2473 for (i = 0; i < timercnt; ++i)
… …
2210 * doesn't hurt either as we only do this on time-jumps or 2510 * doesn't hurt either as we only do this on time-jumps or
2211 * in the unlikely event of having been preempted here. 2511 * in the unlikely event of having been preempted here.
2212 */ 2512 */
2213 for (i = 4; --i; ) 2513 for (i = 4; --i; )
2214 { 2514 {
2515 ev_tstamp diff;
2215 rtmn_diff = ev_rt_now - mn_now; 2516 rtmn_diff = ev_rt_now - mn_now;
2216 2517
2518 diff = odiff - rtmn_diff;
2519
2217 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2520 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2218 return; /* all is well */ 2521 return; /* all is well */
2219 2522
2220 ev_rt_now = ev_time (); 2523 ev_rt_now = ev_time ();
2221 mn_now = get_clock (); 2524 mn_now = get_clock ();
2222 now_floor = mn_now; 2525 now_floor = mn_now;
… …
2245 mn_now = ev_rt_now; 2548 mn_now = ev_rt_now;
2246 } 2549 }
2247} 2550}
2248 2551
2249void 2552void
2250ev_loop (EV_P_ int flags) 2553ev_run (EV_P_ int flags)
2251{ 2554{
2252#if EV_MINIMAL < 2 2555#if EV_FEATURE_API
2253 ++loop_depth; 2556 ++loop_depth;
2254#endif 2557#endif
2255 2558
2256 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2559 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2257 2560
2258 loop_done = EVUNLOOP_CANCEL; 2561 loop_done = EVBREAK_CANCEL;
2259 2562
2260 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2563 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2261 2564
2262 do 2565 do
2263 { 2566 {
2264#if EV_VERIFY >= 2 2567#if EV_VERIFY >= 2
2265 ev_loop_verify (EV_A); 2568 ev_verify (EV_A);
2266#endif 2569#endif
2267 2570
2268#ifndef _WIN32 2571#ifndef _WIN32
2269 if (expect_false (curpid)) /* penalise the forking check even more */ 2572 if (expect_false (curpid)) /* penalise the forking check even more */
2270 if (expect_false (getpid () != curpid)) 2573 if (expect_false (getpid () != curpid))
… …
2282 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2585 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2283 EV_INVOKE_PENDING; 2586 EV_INVOKE_PENDING;
2284 } 2587 }
2285#endif 2588#endif
2286 2589
2590#if EV_PREPARE_ENABLE
2287 /* queue prepare watchers (and execute them) */ 2591 /* queue prepare watchers (and execute them) */
2288 if (expect_false (preparecnt)) 2592 if (expect_false (preparecnt))
2289 { 2593 {
2290 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2594 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2291 EV_INVOKE_PENDING; 2595 EV_INVOKE_PENDING;
2292 } 2596 }
2597#endif
2293 2598
2294 if (expect_false (loop_done)) 2599 if (expect_false (loop_done))
2295 break; 2600 break;
2296 2601
2297 /* we might have forked, so reify kernel state if necessary */ 2602 /* we might have forked, so reify kernel state if necessary */
… …
2304 /* calculate blocking time */ 2609 /* calculate blocking time */
2305 { 2610 {
2306 ev_tstamp waittime = 0.; 2611 ev_tstamp waittime = 0.;
2307 ev_tstamp sleeptime = 0.; 2612 ev_tstamp sleeptime = 0.;
2308 2613
2614 /* remember old timestamp for io_blocktime calculation */
2615 ev_tstamp prev_mn_now = mn_now;
2616
2617 /* update time to cancel out callback processing overhead */
2618 time_update (EV_A_ 1e100);
2619
2620 /* from now on, we want a pipe-wake-up */
2621 pipe_write_wanted = 1;
2622
2623 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2624
2309 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2625 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2310 { 2626 {
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; 2627 waittime = MAX_BLOCKTIME;
2318 2628
2319 if (timercnt) 2629 if (timercnt)
2320 { 2630 {
2321 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2631 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2322 if (waittime > to) waittime = to; 2632 if (waittime > to) waittime = to;
2323 } 2633 }
2324 2634
2325#if EV_PERIODIC_ENABLE 2635#if EV_PERIODIC_ENABLE
2326 if (periodiccnt) 2636 if (periodiccnt)
2327 { 2637 {
2328 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2638 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2329 if (waittime > to) waittime = to; 2639 if (waittime > to) waittime = to;
2330 } 2640 }
2331#endif 2641#endif
2332 2642
2333 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2643 /* don't let timeouts decrease the waittime below timeout_blocktime */
2334 if (expect_false (waittime < timeout_blocktime)) 2644 if (expect_false (waittime < timeout_blocktime))
2335 waittime = timeout_blocktime; 2645 waittime = timeout_blocktime;
2646
2647 /* at this point, we NEED to wait, so we have to ensure */
2648 /* to pass a minimum nonzero value to the backend */
2649 if (expect_false (waittime < backend_mintime))
2650 waittime = backend_mintime;
2336 2651
2337 /* extra check because io_blocktime is commonly 0 */ 2652 /* extra check because io_blocktime is commonly 0 */
2338 if (expect_false (io_blocktime)) 2653 if (expect_false (io_blocktime))
2339 { 2654 {
2340 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2655 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2341 2656
2342 if (sleeptime > waittime - backend_fudge) 2657 if (sleeptime > waittime - backend_mintime)
2343 sleeptime = waittime - backend_fudge; 2658 sleeptime = waittime - backend_mintime;
2344 2659
2345 if (expect_true (sleeptime > 0.)) 2660 if (expect_true (sleeptime > 0.))
2346 { 2661 {
2347 ev_sleep (sleeptime); 2662 ev_sleep (sleeptime);
2348 waittime -= sleeptime; 2663 waittime -= sleeptime;
2349 } 2664 }
2350 } 2665 }
2351 } 2666 }
2352 2667
2353#if EV_MINIMAL < 2 2668#if EV_FEATURE_API
2354 ++loop_count; 2669 ++loop_count;
2355#endif 2670#endif
2356 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2671 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2357 backend_poll (EV_A_ waittime); 2672 backend_poll (EV_A_ waittime);
2358 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2673 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2674
2675 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2676
2677 if (pipe_write_skipped)
2678 {
2679 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2680 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2681 }
2682
2359 2683
2360 /* update ev_rt_now, do magic */ 2684 /* update ev_rt_now, do magic */
2361 time_update (EV_A_ waittime + sleeptime); 2685 time_update (EV_A_ waittime + sleeptime);
2362 } 2686 }
2363 2687
… …
2370#if EV_IDLE_ENABLE 2694#if EV_IDLE_ENABLE
2371 /* queue idle watchers unless other events are pending */ 2695 /* queue idle watchers unless other events are pending */
2372 idle_reify (EV_A); 2696 idle_reify (EV_A);
2373#endif 2697#endif
2374 2698
2699#if EV_CHECK_ENABLE
2375 /* queue check watchers, to be executed first */ 2700 /* queue check watchers, to be executed first */
2376 if (expect_false (checkcnt)) 2701 if (expect_false (checkcnt))
2377 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2702 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2703#endif
2378 2704
2379 EV_INVOKE_PENDING; 2705 EV_INVOKE_PENDING;
2380 } 2706 }
2381 while (expect_true ( 2707 while (expect_true (
2382 activecnt 2708 activecnt
2383 && !loop_done 2709 && !loop_done
2384 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2710 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2385 )); 2711 ));
2386 2712
2387 if (loop_done == EVUNLOOP_ONE) 2713 if (loop_done == EVBREAK_ONE)
2388 loop_done = EVUNLOOP_CANCEL; 2714 loop_done = EVBREAK_CANCEL;
2389 2715
2390#if EV_MINIMAL < 2 2716#if EV_FEATURE_API
2391 --loop_depth; 2717 --loop_depth;
2392#endif 2718#endif
2393} 2719}
2394 2720
2395void 2721void
2396ev_unloop (EV_P_ int how) 2722ev_break (EV_P_ int how)
2397{ 2723{
2398 loop_done = how; 2724 loop_done = how;
2399} 2725}
2400 2726
2401void 2727void
… …
2549 EV_FREQUENT_CHECK; 2875 EV_FREQUENT_CHECK;
2550 2876
2551 wlist_del (&anfds[w->fd].head, (WL)w); 2877 wlist_del (&anfds[w->fd].head, (WL)w);
2552 ev_stop (EV_A_ (W)w); 2878 ev_stop (EV_A_ (W)w);
2553 2879
2554 fd_change (EV_A_ w->fd, 1); 2880 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2555 2881
2556 EV_FREQUENT_CHECK; 2882 EV_FREQUENT_CHECK;
2557} 2883}
2558 2884
2559void noinline 2885void noinline
… …
2651 if (w->reschedule_cb) 2977 if (w->reschedule_cb)
2652 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2978 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2653 else if (w->interval) 2979 else if (w->interval)
2654 { 2980 {
2655 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2981 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 */ 2982 periodic_recalc (EV_A_ w);
2657 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2658 } 2983 }
2659 else 2984 else
2660 ev_at (w) = w->offset; 2985 ev_at (w) = w->offset;
2661 2986
2662 EV_FREQUENT_CHECK; 2987 EV_FREQUENT_CHECK;
… …
2711#endif 3036#endif
2712 3037
2713#ifndef SA_RESTART 3038#ifndef SA_RESTART
2714# define SA_RESTART 0 3039# define SA_RESTART 0
2715#endif 3040#endif
3041
3042#if EV_SIGNAL_ENABLE
2716 3043
2717void noinline 3044void noinline
2718ev_signal_start (EV_P_ ev_signal *w) 3045ev_signal_start (EV_P_ ev_signal *w)
2719{ 3046{
2720 if (expect_false (ev_is_active (w))) 3047 if (expect_false (ev_is_active (w)))
… …
2781 sa.sa_handler = ev_sighandler; 3108 sa.sa_handler = ev_sighandler;
2782 sigfillset (&sa.sa_mask); 3109 sigfillset (&sa.sa_mask);
2783 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3110 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2784 sigaction (w->signum, &sa, 0); 3111 sigaction (w->signum, &sa, 0);
2785 3112
3113 if (origflags & EVFLAG_NOSIGMASK)
3114 {
2786 sigemptyset (&sa.sa_mask); 3115 sigemptyset (&sa.sa_mask);
2787 sigaddset (&sa.sa_mask, w->signum); 3116 sigaddset (&sa.sa_mask, w->signum);
2788 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3117 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3118 }
2789#endif 3119#endif
2790 } 3120 }
2791 3121
2792 EV_FREQUENT_CHECK; 3122 EV_FREQUENT_CHECK;
2793} 3123}
… …
2827 } 3157 }
2828 3158
2829 EV_FREQUENT_CHECK; 3159 EV_FREQUENT_CHECK;
2830} 3160}
2831 3161
3162#endif
3163
3164#if EV_CHILD_ENABLE
3165
2832void 3166void
2833ev_child_start (EV_P_ ev_child *w) 3167ev_child_start (EV_P_ ev_child *w)
2834{ 3168{
2835#if EV_MULTIPLICITY 3169#if EV_MULTIPLICITY
2836 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3170 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2839 return; 3173 return;
2840 3174
2841 EV_FREQUENT_CHECK; 3175 EV_FREQUENT_CHECK;
2842 3176
2843 ev_start (EV_A_ (W)w, 1); 3177 ev_start (EV_A_ (W)w, 1);
2844 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3178 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845 3179
2846 EV_FREQUENT_CHECK; 3180 EV_FREQUENT_CHECK;
2847} 3181}
2848 3182
2849void 3183void
… …
2853 if (expect_false (!ev_is_active (w))) 3187 if (expect_false (!ev_is_active (w)))
2854 return; 3188 return;
2855 3189
2856 EV_FREQUENT_CHECK; 3190 EV_FREQUENT_CHECK;
2857 3191
2858 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3192 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2859 ev_stop (EV_A_ (W)w); 3193 ev_stop (EV_A_ (W)w);
2860 3194
2861 EV_FREQUENT_CHECK; 3195 EV_FREQUENT_CHECK;
2862} 3196}
3197
3198#endif
2863 3199
2864#if EV_STAT_ENABLE 3200#if EV_STAT_ENABLE
2865 3201
2866# ifdef _WIN32 3202# ifdef _WIN32
2867# undef lstat 3203# undef lstat
… …
2928 if (!pend || pend == path) 3264 if (!pend || pend == path)
2929 break; 3265 break;
2930 3266
2931 *pend = 0; 3267 *pend = 0;
2932 w->wd = inotify_add_watch (fs_fd, path, mask); 3268 w->wd = inotify_add_watch (fs_fd, path, mask);
2933 } 3269 }
2934 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3270 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2935 } 3271 }
2936 } 3272 }
2937 3273
2938 if (w->wd >= 0) 3274 if (w->wd >= 0)
2939 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3275 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2940 3276
2941 /* now re-arm timer, if required */ 3277 /* now re-arm timer, if required */
2942 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3278 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2943 ev_timer_again (EV_A_ &w->timer); 3279 ev_timer_again (EV_A_ &w->timer);
2944 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3280 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2952 3288
2953 if (wd < 0) 3289 if (wd < 0)
2954 return; 3290 return;
2955 3291
2956 w->wd = -2; 3292 w->wd = -2;
2957 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3293 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2958 wlist_del (&fs_hash [slot].head, (WL)w); 3294 wlist_del (&fs_hash [slot].head, (WL)w);
2959 3295
2960 /* remove this watcher, if others are watching it, they will rearm */ 3296 /* remove this watcher, if others are watching it, they will rearm */
2961 inotify_rm_watch (fs_fd, wd); 3297 inotify_rm_watch (fs_fd, wd);
2962} 3298}
… …
2964static void noinline 3300static void noinline
2965infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3301infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2966{ 3302{
2967 if (slot < 0) 3303 if (slot < 0)
2968 /* overflow, need to check for all hash slots */ 3304 /* overflow, need to check for all hash slots */
2969 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3305 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2970 infy_wd (EV_A_ slot, wd, ev); 3306 infy_wd (EV_A_ slot, wd, ev);
2971 else 3307 else
2972 { 3308 {
2973 WL w_; 3309 WL w_;
2974 3310
2975 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3311 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2976 { 3312 {
2977 ev_stat *w = (ev_stat *)w_; 3313 ev_stat *w = (ev_stat *)w_;
2978 w_ = w_->next; /* lets us remove this watcher and all before it */ 3314 w_ = w_->next; /* lets us remove this watcher and all before it */
2979 3315
2980 if (w->wd == wd || wd == -1) 3316 if (w->wd == wd || wd == -1)
2981 { 3317 {
2982 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3318 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2983 { 3319 {
2984 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3320 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2985 w->wd = -1; 3321 w->wd = -1;
2986 infy_add (EV_A_ w); /* re-add, no matter what */ 3322 infy_add (EV_A_ w); /* re-add, no matter what */
2987 } 3323 }
2988 3324
2989 stat_timer_cb (EV_A_ &w->timer, 0); 3325 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3005 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3341 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3006 ofs += sizeof (struct inotify_event) + ev->len; 3342 ofs += sizeof (struct inotify_event) + ev->len;
3007 } 3343 }
3008} 3344}
3009 3345
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 3346inline_size void ecb_cold
3043ev_check_2625 (EV_P) 3347ev_check_2625 (EV_P)
3044{ 3348{
3045 /* kernels < 2.6.25 are borked 3349 /* kernels < 2.6.25 are borked
3046 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3350 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3047 */ 3351 */
… …
3103 ev_io_set (&fs_w, fs_fd, EV_READ); 3407 ev_io_set (&fs_w, fs_fd, EV_READ);
3104 ev_io_start (EV_A_ &fs_w); 3408 ev_io_start (EV_A_ &fs_w);
3105 ev_unref (EV_A); 3409 ev_unref (EV_A);
3106 } 3410 }
3107 3411
3108 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3412 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3109 { 3413 {
3110 WL w_ = fs_hash [slot].head; 3414 WL w_ = fs_hash [slot].head;
3111 fs_hash [slot].head = 0; 3415 fs_hash [slot].head = 0;
3112 3416
3113 while (w_) 3417 while (w_)
… …
3288 3592
3289 EV_FREQUENT_CHECK; 3593 EV_FREQUENT_CHECK;
3290} 3594}
3291#endif 3595#endif
3292 3596
3597#if EV_PREPARE_ENABLE
3293void 3598void
3294ev_prepare_start (EV_P_ ev_prepare *w) 3599ev_prepare_start (EV_P_ ev_prepare *w)
3295{ 3600{
3296 if (expect_false (ev_is_active (w))) 3601 if (expect_false (ev_is_active (w)))
3297 return; 3602 return;
… …
3323 3628
3324 ev_stop (EV_A_ (W)w); 3629 ev_stop (EV_A_ (W)w);
3325 3630
3326 EV_FREQUENT_CHECK; 3631 EV_FREQUENT_CHECK;
3327} 3632}
3633#endif
3328 3634
3635#if EV_CHECK_ENABLE
3329void 3636void
3330ev_check_start (EV_P_ ev_check *w) 3637ev_check_start (EV_P_ ev_check *w)
3331{ 3638{
3332 if (expect_false (ev_is_active (w))) 3639 if (expect_false (ev_is_active (w)))
3333 return; 3640 return;
… …
3359 3666
3360 ev_stop (EV_A_ (W)w); 3667 ev_stop (EV_A_ (W)w);
3361 3668
3362 EV_FREQUENT_CHECK; 3669 EV_FREQUENT_CHECK;
3363} 3670}
3671#endif
3364 3672
3365#if EV_EMBED_ENABLE 3673#if EV_EMBED_ENABLE
3366void noinline 3674void noinline
3367ev_embed_sweep (EV_P_ ev_embed *w) 3675ev_embed_sweep (EV_P_ ev_embed *w)
3368{ 3676{
3369 ev_loop (w->other, EVLOOP_NONBLOCK); 3677 ev_run (w->other, EVRUN_NOWAIT);
3370} 3678}
3371 3679
3372static void 3680static void
3373embed_io_cb (EV_P_ ev_io *io, int revents) 3681embed_io_cb (EV_P_ ev_io *io, int revents)
3374{ 3682{
3375 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3683 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3376 3684
3377 if (ev_cb (w)) 3685 if (ev_cb (w))
3378 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3686 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3379 else 3687 else
3380 ev_loop (w->other, EVLOOP_NONBLOCK); 3688 ev_run (w->other, EVRUN_NOWAIT);
3381} 3689}
3382 3690
3383static void 3691static void
3384embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3692embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3385{ 3693{
… …
3389 EV_P = w->other; 3697 EV_P = w->other;
3390 3698
3391 while (fdchangecnt) 3699 while (fdchangecnt)
3392 { 3700 {
3393 fd_reify (EV_A); 3701 fd_reify (EV_A);
3394 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3702 ev_run (EV_A_ EVRUN_NOWAIT);
3395 } 3703 }
3396 } 3704 }
3397} 3705}
3398 3706
3399static void 3707static void
… …
3405 3713
3406 { 3714 {
3407 EV_P = w->other; 3715 EV_P = w->other;
3408 3716
3409 ev_loop_fork (EV_A); 3717 ev_loop_fork (EV_A);
3410 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3718 ev_run (EV_A_ EVRUN_NOWAIT);
3411 } 3719 }
3412 3720
3413 ev_embed_start (EV_A_ w); 3721 ev_embed_start (EV_A_ w);
3414} 3722}
3415 3723
… …
3507 3815
3508 EV_FREQUENT_CHECK; 3816 EV_FREQUENT_CHECK;
3509} 3817}
3510#endif 3818#endif
3511 3819
3820#if EV_CLEANUP_ENABLE
3821void
3822ev_cleanup_start (EV_P_ ev_cleanup *w)
3823{
3824 if (expect_false (ev_is_active (w)))
3825 return;
3826
3827 EV_FREQUENT_CHECK;
3828
3829 ev_start (EV_A_ (W)w, ++cleanupcnt);
3830 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3831 cleanups [cleanupcnt - 1] = w;
3832
3833 /* cleanup watchers should never keep a refcount on the loop */
3834 ev_unref (EV_A);
3835 EV_FREQUENT_CHECK;
3836}
3837
3838void
3839ev_cleanup_stop (EV_P_ ev_cleanup *w)
3840{
3841 clear_pending (EV_A_ (W)w);
3842 if (expect_false (!ev_is_active (w)))
3843 return;
3844
3845 EV_FREQUENT_CHECK;
3846 ev_ref (EV_A);
3847
3848 {
3849 int active = ev_active (w);
3850
3851 cleanups [active - 1] = cleanups [--cleanupcnt];
3852 ev_active (cleanups [active - 1]) = active;
3853 }
3854
3855 ev_stop (EV_A_ (W)w);
3856
3857 EV_FREQUENT_CHECK;
3858}
3859#endif
3860
3512#if EV_ASYNC_ENABLE 3861#if EV_ASYNC_ENABLE
3513void 3862void
3514ev_async_start (EV_P_ ev_async *w) 3863ev_async_start (EV_P_ ev_async *w)
3515{ 3864{
3516 if (expect_false (ev_is_active (w))) 3865 if (expect_false (ev_is_active (w)))
3517 return; 3866 return;
3867
3868 w->sent = 0;
3518 3869
3519 evpipe_init (EV_A); 3870 evpipe_init (EV_A);
3520 3871
3521 EV_FREQUENT_CHECK; 3872 EV_FREQUENT_CHECK;
3522 3873
… …
3600{ 3951{
3601 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3952 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3602 3953
3603 if (expect_false (!once)) 3954 if (expect_false (!once))
3604 { 3955 {
3605 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3956 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3606 return; 3957 return;
3607 } 3958 }
3608 3959
3609 once->cb = cb; 3960 once->cb = cb;
3610 once->arg = arg; 3961 once->arg = arg;
… …
3625} 3976}
3626 3977
3627/*****************************************************************************/ 3978/*****************************************************************************/
3628 3979
3629#if EV_WALK_ENABLE 3980#if EV_WALK_ENABLE
3630void 3981void ecb_cold
3631ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3982ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3632{ 3983{
3633 int i, j; 3984 int i, j;
3634 ev_watcher_list *wl, *wn; 3985 ev_watcher_list *wl, *wn;
3635 3986
… …
3697 if (types & EV_ASYNC) 4048 if (types & EV_ASYNC)
3698 for (i = asynccnt; i--; ) 4049 for (i = asynccnt; i--; )
3699 cb (EV_A_ EV_ASYNC, asyncs [i]); 4050 cb (EV_A_ EV_ASYNC, asyncs [i]);
3700#endif 4051#endif
3701 4052
4053#if EV_PREPARE_ENABLE
3702 if (types & EV_PREPARE) 4054 if (types & EV_PREPARE)
3703 for (i = preparecnt; i--; ) 4055 for (i = preparecnt; i--; )
3704#if EV_EMBED_ENABLE 4056# if EV_EMBED_ENABLE
3705 if (ev_cb (prepares [i]) != embed_prepare_cb) 4057 if (ev_cb (prepares [i]) != embed_prepare_cb)
3706#endif 4058# endif
3707 cb (EV_A_ EV_PREPARE, prepares [i]); 4059 cb (EV_A_ EV_PREPARE, prepares [i]);
4060#endif
3708 4061
4062#if EV_CHECK_ENABLE
3709 if (types & EV_CHECK) 4063 if (types & EV_CHECK)
3710 for (i = checkcnt; i--; ) 4064 for (i = checkcnt; i--; )
3711 cb (EV_A_ EV_CHECK, checks [i]); 4065 cb (EV_A_ EV_CHECK, checks [i]);
4066#endif
3712 4067
4068#if EV_SIGNAL_ENABLE
3713 if (types & EV_SIGNAL) 4069 if (types & EV_SIGNAL)
3714 for (i = 0; i < EV_NSIG - 1; ++i) 4070 for (i = 0; i < EV_NSIG - 1; ++i)
3715 for (wl = signals [i].head; wl; ) 4071 for (wl = signals [i].head; wl; )
3716 { 4072 {
3717 wn = wl->next; 4073 wn = wl->next;
3718 cb (EV_A_ EV_SIGNAL, wl); 4074 cb (EV_A_ EV_SIGNAL, wl);
3719 wl = wn; 4075 wl = wn;
3720 } 4076 }
4077#endif
3721 4078
4079#if EV_CHILD_ENABLE
3722 if (types & EV_CHILD) 4080 if (types & EV_CHILD)
3723 for (i = EV_PID_HASHSIZE; i--; ) 4081 for (i = (EV_PID_HASHSIZE); i--; )
3724 for (wl = childs [i]; wl; ) 4082 for (wl = childs [i]; wl; )
3725 { 4083 {
3726 wn = wl->next; 4084 wn = wl->next;
3727 cb (EV_A_ EV_CHILD, wl); 4085 cb (EV_A_ EV_CHILD, wl);
3728 wl = wn; 4086 wl = wn;
3729 } 4087 }
4088#endif
3730/* EV_STAT 0x00001000 /* stat data changed */ 4089/* EV_STAT 0x00001000 /* stat data changed */
3731/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4090/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3732} 4091}
3733#endif 4092#endif
3734 4093
3735#if EV_MULTIPLICITY 4094#if EV_MULTIPLICITY
3736 #include "ev_wrap.h" 4095 #include "ev_wrap.h"
3737#endif 4096#endif
3738 4097
3739#ifdef __cplusplus 4098EV_CPP(})
3740}
3741#endif
3742 4099

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