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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 1.383 by root, Wed Jul 20 00:40:14 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
517 #define ECB_MEMORY_FENCE do { } while (0)
518 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
519 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
520 #elif defined(_WIN32) && defined(MemoryBarrier)
521 #define ECB_MEMORY_FENCE MemoryBarrier ()
522 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
523 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
524 #endif
525#endif
526
527#ifndef ECB_MEMORY_FENCE
528 #include <pthread.h>
529
530 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
531 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
532 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
533 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
534#endif
535
536#if ECB_GCC_VERSION(3,1)
537 #define ecb_attribute(attrlist) __attribute__(attrlist)
538 #define ecb_is_constant(expr) __builtin_constant_p (expr)
539 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
540 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
541#else
542 #define ecb_attribute(attrlist)
543 #define ecb_is_constant(expr) 0
544 #define ecb_expect(expr,value) (expr)
545 #define ecb_prefetch(addr,rw,locality)
546#endif
547
548#define ecb_noinline ecb_attribute ((__noinline__))
549#define ecb_noreturn ecb_attribute ((__noreturn__))
550#define ecb_unused ecb_attribute ((__unused__))
551#define ecb_const ecb_attribute ((__const__))
552#define ecb_pure ecb_attribute ((__pure__))
553
554#if ECB_GCC_VERSION(4,3)
555 #define ecb_artificial ecb_attribute ((__artificial__))
556 #define ecb_hot ecb_attribute ((__hot__))
557 #define ecb_cold ecb_attribute ((__cold__))
558#else
559 #define ecb_artificial
560 #define ecb_hot
561 #define ecb_cold
562#endif
563
564/* put around conditional expressions if you are very sure that the */
565/* expression is mostly true or mostly false. note that these return */
566/* booleans, not the expression. */
475#define expect_false(expr) expect ((expr) != 0, 0) 567#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
476#define expect_true(expr) expect ((expr) != 0, 1) 568#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
569/* ecb.h end */
570
571#define expect_false(cond) ecb_expect_false (cond)
572#define expect_true(cond) ecb_expect_true (cond)
573#define noinline ecb_noinline
574
477#define inline_size static inline 575#define inline_size ecb_inline
478 576
479#if EV_MINIMAL 577#if EV_FEATURE_CODE
578# define inline_speed ecb_inline
579#else
480# define inline_speed static noinline 580# define inline_speed static noinline
481#else
482# define inline_speed static inline
483#endif 581#endif
484 582
485#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 583#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
486 584
487#if EV_MINPRI == EV_MAXPRI 585#if EV_MINPRI == EV_MAXPRI
… …
500#define ev_active(w) ((W)(w))->active 598#define ev_active(w) ((W)(w))->active
501#define ev_at(w) ((WT)(w))->at 599#define ev_at(w) ((WT)(w))->at
502 600
503#if EV_USE_REALTIME 601#if EV_USE_REALTIME
504/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 602/* 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 */ 603/* giving it a reasonably high chance of working on typical architectures */
506static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 604static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
507#endif 605#endif
508 606
509#if EV_USE_MONOTONIC 607#if EV_USE_MONOTONIC
510static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 608static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
524# include "ev_win32.c" 622# include "ev_win32.c"
525#endif 623#endif
526 624
527/*****************************************************************************/ 625/*****************************************************************************/
528 626
627/* define a suitable floor function (only used by periodics atm) */
628
629#if EV_USE_FLOOR
630# include <math.h>
631# define ev_floor(v) floor (v)
632#else
633
634#include <float.h>
635
636/* a floor() replacement function, should be independent of ev_tstamp type */
637static ev_tstamp noinline
638ev_floor (ev_tstamp v)
639{
640 /* the choice of shift factor is not terribly important */
641#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
642 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
643#else
644 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
645#endif
646
647 /* argument too large for an unsigned long? */
648 if (expect_false (v >= shift))
649 {
650 ev_tstamp f;
651
652 if (v == v - 1.)
653 return v; /* very large number */
654
655 f = shift * ev_floor (v * (1. / shift));
656 return f + ev_floor (v - f);
657 }
658
659 /* special treatment for negative args? */
660 if (expect_false (v < 0.))
661 {
662 ev_tstamp f = -ev_floor (-v);
663
664 return f - (f == v ? 0 : 1);
665 }
666
667 /* fits into an unsigned long */
668 return (unsigned long)v;
669}
670
671#endif
672
673/*****************************************************************************/
674
675#ifdef __linux
676# include <sys/utsname.h>
677#endif
678
679static unsigned int noinline ecb_cold
680ev_linux_version (void)
681{
682#ifdef __linux
683 unsigned int v = 0;
684 struct utsname buf;
685 int i;
686 char *p = buf.release;
687
688 if (uname (&buf))
689 return 0;
690
691 for (i = 3+1; --i; )
692 {
693 unsigned int c = 0;
694
695 for (;;)
696 {
697 if (*p >= '0' && *p <= '9')
698 c = c * 10 + *p++ - '0';
699 else
700 {
701 p += *p == '.';
702 break;
703 }
704 }
705
706 v = (v << 8) | c;
707 }
708
709 return v;
710#else
711 return 0;
712#endif
713}
714
715/*****************************************************************************/
716
717#if EV_AVOID_STDIO
718static void noinline ecb_cold
719ev_printerr (const char *msg)
720{
721 write (STDERR_FILENO, msg, strlen (msg));
722}
723#endif
724
529static void (*syserr_cb)(const char *msg); 725static void (*syserr_cb)(const char *msg);
530 726
531void 727void ecb_cold
532ev_set_syserr_cb (void (*cb)(const char *msg)) 728ev_set_syserr_cb (void (*cb)(const char *msg))
533{ 729{
534 syserr_cb = cb; 730 syserr_cb = cb;
535} 731}
536 732
537static void noinline 733static void noinline ecb_cold
538ev_syserr (const char *msg) 734ev_syserr (const char *msg)
539{ 735{
540 if (!msg) 736 if (!msg)
541 msg = "(libev) system error"; 737 msg = "(libev) system error";
542 738
543 if (syserr_cb) 739 if (syserr_cb)
544 syserr_cb (msg); 740 syserr_cb (msg);
545 else 741 else
546 { 742 {
547#if EV_AVOID_STDIO 743#if EV_AVOID_STDIO
548 write (STDERR_FILENO, msg, strlen (msg)); 744 ev_printerr (msg);
549 write (STDERR_FILENO, ": ", 2); 745 ev_printerr (": ");
550 msg = strerror (errno); 746 ev_printerr (strerror (errno));
551 write (STDERR_FILENO, msg, strlen (msg)); 747 ev_printerr ("\n");
552 write (STDERR_FILENO, "\n", 1);
553#else 748#else
554 perror (msg); 749 perror (msg);
555#endif 750#endif
556 abort (); 751 abort ();
557 } 752 }
558} 753}
559 754
560static void * 755static void *
561ev_realloc_emul (void *ptr, long size) 756ev_realloc_emul (void *ptr, long size)
562{ 757{
758#if __GLIBC__
759 return realloc (ptr, size);
760#else
563 /* some systems, notably openbsd and darwin, fail to properly 761 /* some systems, notably openbsd and darwin, fail to properly
564 * implement realloc (x, 0) (as required by both ansi c-98 and 762 * implement realloc (x, 0) (as required by both ansi c-89 and
565 * the single unix specification, so work around them here. 763 * the single unix specification, so work around them here.
566 */ 764 */
567 765
568 if (size) 766 if (size)
569 return realloc (ptr, size); 767 return realloc (ptr, size);
570 768
571 free (ptr); 769 free (ptr);
572 return 0; 770 return 0;
771#endif
573} 772}
574 773
575static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 774static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
576 775
577void 776void ecb_cold
578ev_set_allocator (void *(*cb)(void *ptr, long size)) 777ev_set_allocator (void *(*cb)(void *ptr, long size))
579{ 778{
580 alloc = cb; 779 alloc = cb;
581} 780}
582 781
… …
586 ptr = alloc (ptr, size); 785 ptr = alloc (ptr, size);
587 786
588 if (!ptr && size) 787 if (!ptr && size)
589 { 788 {
590#if EV_AVOID_STDIO 789#if EV_AVOID_STDIO
591 write (STDERR_FILENO, "libev: memory allocation failed, aborting.", 790 ev_printerr ("(libev) memory allocation failed, aborting.\n");
592 sizeof ("libev: memory allocation failed, aborting.") - 1);
593#else 791#else
594 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 792 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
595#endif 793#endif
596 abort (); 794 abort ();
597 } 795 }
598 796
599 return ptr; 797 return ptr;
… …
616 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 814 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
617 unsigned char unused; 815 unsigned char unused;
618#if EV_USE_EPOLL 816#if EV_USE_EPOLL
619 unsigned int egen; /* generation counter to counter epoll bugs */ 817 unsigned int egen; /* generation counter to counter epoll bugs */
620#endif 818#endif
621#if EV_SELECT_IS_WINSOCKET 819#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
622 SOCKET handle; 820 SOCKET handle;
821#endif
822#if EV_USE_IOCP
823 OVERLAPPED or, ow;
623#endif 824#endif
624} ANFD; 825} ANFD;
625 826
626/* stores the pending event set for a given watcher */ 827/* stores the pending event set for a given watcher */
627typedef struct 828typedef struct
… …
682 883
683 static int ev_default_loop_ptr; 884 static int ev_default_loop_ptr;
684 885
685#endif 886#endif
686 887
687#if EV_MINIMAL < 2 888#if EV_FEATURE_API
688# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 889# 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) 890# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
690# define EV_INVOKE_PENDING invoke_cb (EV_A) 891# define EV_INVOKE_PENDING invoke_cb (EV_A)
691#else 892#else
692# define EV_RELEASE_CB (void)0 893# define EV_RELEASE_CB (void)0
693# define EV_ACQUIRE_CB (void)0 894# define EV_ACQUIRE_CB (void)0
694# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 895# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
695#endif 896#endif
696 897
697#define EVUNLOOP_RECURSE 0x80 898#define EVBREAK_RECURSE 0x80
698 899
699/*****************************************************************************/ 900/*****************************************************************************/
700 901
701#ifndef EV_HAVE_EV_TIME 902#ifndef EV_HAVE_EV_TIME
702ev_tstamp 903ev_tstamp
… …
746 if (delay > 0.) 947 if (delay > 0.)
747 { 948 {
748#if EV_USE_NANOSLEEP 949#if EV_USE_NANOSLEEP
749 struct timespec ts; 950 struct timespec ts;
750 951
751 ts.tv_sec = (time_t)delay; 952 EV_TS_SET (ts, delay);
752 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
753
754 nanosleep (&ts, 0); 953 nanosleep (&ts, 0);
755#elif defined(_WIN32) 954#elif defined(_WIN32)
756 Sleep ((unsigned long)(delay * 1e3)); 955 Sleep ((unsigned long)(delay * 1e3));
757#else 956#else
758 struct timeval tv; 957 struct timeval tv;
759 958
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 */ 959 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
764 /* something not guaranteed by newer posix versions, but guaranteed */ 960 /* something not guaranteed by newer posix versions, but guaranteed */
765 /* by older ones */ 961 /* by older ones */
962 EV_TV_SET (tv, delay);
766 select (0, 0, 0, 0, &tv); 963 select (0, 0, 0, 0, &tv);
767#endif 964#endif
768 } 965 }
769} 966}
770 967
771/*****************************************************************************/ 968/*****************************************************************************/
772 969
773#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 970#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
774 971
775/* find a suitable new size for the given array, */ 972/* find a suitable new size for the given array, */
776/* hopefully by rounding to a ncie-to-malloc size */ 973/* hopefully by rounding to a nice-to-malloc size */
777inline_size int 974inline_size int
778array_nextsize (int elem, int cur, int cnt) 975array_nextsize (int elem, int cur, int cnt)
779{ 976{
780 int ncur = cur + 1; 977 int ncur = cur + 1;
781 978
… …
793 } 990 }
794 991
795 return ncur; 992 return ncur;
796} 993}
797 994
798static noinline void * 995static void * noinline ecb_cold
799array_realloc (int elem, void *base, int *cur, int cnt) 996array_realloc (int elem, void *base, int *cur, int cnt)
800{ 997{
801 *cur = array_nextsize (elem, *cur, cnt); 998 *cur = array_nextsize (elem, *cur, cnt);
802 return ev_realloc (base, elem * *cur); 999 return ev_realloc (base, elem * *cur);
803} 1000}
… …
806 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1003 memset ((void *)(base), 0, sizeof (*(base)) * (count))
807 1004
808#define array_needsize(type,base,cur,cnt,init) \ 1005#define array_needsize(type,base,cur,cnt,init) \
809 if (expect_false ((cnt) > (cur))) \ 1006 if (expect_false ((cnt) > (cur))) \
810 { \ 1007 { \
811 int ocur_ = (cur); \ 1008 int ecb_unused ocur_ = (cur); \
812 (base) = (type *)array_realloc \ 1009 (base) = (type *)array_realloc \
813 (sizeof (type), (base), &(cur), (cnt)); \ 1010 (sizeof (type), (base), &(cur), (cnt)); \
814 init ((base) + (ocur_), (cur) - ocur_); \ 1011 init ((base) + (ocur_), (cur) - ocur_); \
815 } 1012 }
816 1013
… …
877} 1074}
878 1075
879/*****************************************************************************/ 1076/*****************************************************************************/
880 1077
881inline_speed void 1078inline_speed void
882fd_event_nc (EV_P_ int fd, int revents) 1079fd_event_nocheck (EV_P_ int fd, int revents)
883{ 1080{
884 ANFD *anfd = anfds + fd; 1081 ANFD *anfd = anfds + fd;
885 ev_io *w; 1082 ev_io *w;
886 1083
887 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1084 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
899fd_event (EV_P_ int fd, int revents) 1096fd_event (EV_P_ int fd, int revents)
900{ 1097{
901 ANFD *anfd = anfds + fd; 1098 ANFD *anfd = anfds + fd;
902 1099
903 if (expect_true (!anfd->reify)) 1100 if (expect_true (!anfd->reify))
904 fd_event_nc (EV_A_ fd, revents); 1101 fd_event_nocheck (EV_A_ fd, revents);
905} 1102}
906 1103
907void 1104void
908ev_feed_fd_event (EV_P_ int fd, int revents) 1105ev_feed_fd_event (EV_P_ int fd, int revents)
909{ 1106{
910 if (fd >= 0 && fd < anfdmax) 1107 if (fd >= 0 && fd < anfdmax)
911 fd_event_nc (EV_A_ fd, revents); 1108 fd_event_nocheck (EV_A_ fd, revents);
912} 1109}
913 1110
914/* make sure the external fd watch events are in-sync */ 1111/* make sure the external fd watch events are in-sync */
915/* with the kernel/libev internal state */ 1112/* with the kernel/libev internal state */
916inline_size void 1113inline_size void
917fd_reify (EV_P) 1114fd_reify (EV_P)
918{ 1115{
919 int i; 1116 int i;
920 1117
1118#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1119 for (i = 0; i < fdchangecnt; ++i)
1120 {
1121 int fd = fdchanges [i];
1122 ANFD *anfd = anfds + fd;
1123
1124 if (anfd->reify & EV__IOFDSET && anfd->head)
1125 {
1126 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1127
1128 if (handle != anfd->handle)
1129 {
1130 unsigned long arg;
1131
1132 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1133
1134 /* handle changed, but fd didn't - we need to do it in two steps */
1135 backend_modify (EV_A_ fd, anfd->events, 0);
1136 anfd->events = 0;
1137 anfd->handle = handle;
1138 }
1139 }
1140 }
1141#endif
1142
921 for (i = 0; i < fdchangecnt; ++i) 1143 for (i = 0; i < fdchangecnt; ++i)
922 { 1144 {
923 int fd = fdchanges [i]; 1145 int fd = fdchanges [i];
924 ANFD *anfd = anfds + fd; 1146 ANFD *anfd = anfds + fd;
925 ev_io *w; 1147 ev_io *w;
926 1148
927 unsigned char events = 0; 1149 unsigned char o_events = anfd->events;
1150 unsigned char o_reify = anfd->reify;
928 1151
929 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1152 anfd->reify = 0;
930 events |= (unsigned char)w->events;
931 1153
932#if EV_SELECT_IS_WINSOCKET 1154 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
933 if (events)
934 { 1155 {
935 unsigned long arg; 1156 anfd->events = 0;
936 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1157
937 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1158 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1159 anfd->events |= (unsigned char)w->events;
1160
1161 if (o_events != anfd->events)
1162 o_reify = EV__IOFDSET; /* actually |= */
938 } 1163 }
939#endif
940 1164
941 { 1165 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); 1166 backend_modify (EV_A_ fd, o_events, anfd->events);
950 }
951 } 1167 }
952 1168
953 fdchangecnt = 0; 1169 fdchangecnt = 0;
954} 1170}
955 1171
… …
967 fdchanges [fdchangecnt - 1] = fd; 1183 fdchanges [fdchangecnt - 1] = fd;
968 } 1184 }
969} 1185}
970 1186
971/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1187/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
972inline_speed void 1188inline_speed void ecb_cold
973fd_kill (EV_P_ int fd) 1189fd_kill (EV_P_ int fd)
974{ 1190{
975 ev_io *w; 1191 ev_io *w;
976 1192
977 while ((w = (ev_io *)anfds [fd].head)) 1193 while ((w = (ev_io *)anfds [fd].head))
… …
979 ev_io_stop (EV_A_ w); 1195 ev_io_stop (EV_A_ w);
980 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1196 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
981 } 1197 }
982} 1198}
983 1199
984/* check whether the given fd is atcually valid, for error recovery */ 1200/* check whether the given fd is actually valid, for error recovery */
985inline_size int 1201inline_size int ecb_cold
986fd_valid (int fd) 1202fd_valid (int fd)
987{ 1203{
988#ifdef _WIN32 1204#ifdef _WIN32
989 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1205 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
990#else 1206#else
991 return fcntl (fd, F_GETFD) != -1; 1207 return fcntl (fd, F_GETFD) != -1;
992#endif 1208#endif
993} 1209}
994 1210
995/* called on EBADF to verify fds */ 1211/* called on EBADF to verify fds */
996static void noinline 1212static void noinline ecb_cold
997fd_ebadf (EV_P) 1213fd_ebadf (EV_P)
998{ 1214{
999 int fd; 1215 int fd;
1000 1216
1001 for (fd = 0; fd < anfdmax; ++fd) 1217 for (fd = 0; fd < anfdmax; ++fd)
… …
1003 if (!fd_valid (fd) && errno == EBADF) 1219 if (!fd_valid (fd) && errno == EBADF)
1004 fd_kill (EV_A_ fd); 1220 fd_kill (EV_A_ fd);
1005} 1221}
1006 1222
1007/* called on ENOMEM in select/poll to kill some fds and retry */ 1223/* called on ENOMEM in select/poll to kill some fds and retry */
1008static void noinline 1224static void noinline ecb_cold
1009fd_enomem (EV_P) 1225fd_enomem (EV_P)
1010{ 1226{
1011 int fd; 1227 int fd;
1012 1228
1013 for (fd = anfdmax; fd--; ) 1229 for (fd = anfdmax; fd--; )
… …
1031 anfds [fd].emask = 0; 1247 anfds [fd].emask = 0;
1032 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1248 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1033 } 1249 }
1034} 1250}
1035 1251
1252/* used to prepare libev internal fd's */
1253/* this is not fork-safe */
1254inline_speed void
1255fd_intern (int fd)
1256{
1257#ifdef _WIN32
1258 unsigned long arg = 1;
1259 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1260#else
1261 fcntl (fd, F_SETFD, FD_CLOEXEC);
1262 fcntl (fd, F_SETFL, O_NONBLOCK);
1263#endif
1264}
1265
1036/*****************************************************************************/ 1266/*****************************************************************************/
1037 1267
1038/* 1268/*
1039 * the heap functions want a real array index. array index 0 uis guaranteed to not 1269 * 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 1270 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1041 * the branching factor of the d-tree. 1271 * the branching factor of the d-tree.
1042 */ 1272 */
1043 1273
1044/* 1274/*
… …
1192 1422
1193static ANSIG signals [EV_NSIG - 1]; 1423static ANSIG signals [EV_NSIG - 1];
1194 1424
1195/*****************************************************************************/ 1425/*****************************************************************************/
1196 1426
1197/* used to prepare libev internal fd's */ 1427#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 1428
1211static void noinline 1429static void noinline ecb_cold
1212evpipe_init (EV_P) 1430evpipe_init (EV_P)
1213{ 1431{
1214 if (!ev_is_active (&pipe_w)) 1432 if (!ev_is_active (&pipe_w))
1215 { 1433 {
1216#if EV_USE_EVENTFD 1434# if EV_USE_EVENTFD
1217 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1435 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1218 if (evfd < 0 && errno == EINVAL) 1436 if (evfd < 0 && errno == EINVAL)
1219 evfd = eventfd (0, 0); 1437 evfd = eventfd (0, 0);
1220 1438
1221 if (evfd >= 0) 1439 if (evfd >= 0)
… …
1223 evpipe [0] = -1; 1441 evpipe [0] = -1;
1224 fd_intern (evfd); /* doing it twice doesn't hurt */ 1442 fd_intern (evfd); /* doing it twice doesn't hurt */
1225 ev_io_set (&pipe_w, evfd, EV_READ); 1443 ev_io_set (&pipe_w, evfd, EV_READ);
1226 } 1444 }
1227 else 1445 else
1228#endif 1446# endif
1229 { 1447 {
1230 while (pipe (evpipe)) 1448 while (pipe (evpipe))
1231 ev_syserr ("(libev) error creating signal/async pipe"); 1449 ev_syserr ("(libev) error creating signal/async pipe");
1232 1450
1233 fd_intern (evpipe [0]); 1451 fd_intern (evpipe [0]);
… …
1238 ev_io_start (EV_A_ &pipe_w); 1456 ev_io_start (EV_A_ &pipe_w);
1239 ev_unref (EV_A); /* watcher should not keep loop alive */ 1457 ev_unref (EV_A); /* watcher should not keep loop alive */
1240 } 1458 }
1241} 1459}
1242 1460
1243inline_size void 1461inline_speed void
1244evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1462evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1245{ 1463{
1246 if (!*flag) 1464 if (expect_true (*flag))
1465 return;
1466
1467 *flag = 1;
1468
1469 ECB_MEMORY_FENCE_RELEASE;
1470
1471 pipe_write_skipped = 1;
1472
1473 ECB_MEMORY_FENCE;
1474
1475 if (pipe_write_wanted)
1247 { 1476 {
1477 int old_errno;
1478
1479 pipe_write_skipped = 0; /* optimisation only */
1480
1248 int old_errno = errno; /* save errno because write might clobber it */ 1481 old_errno = errno; /* save errno because write will clobber it */
1249
1250 *flag = 1;
1251 1482
1252#if EV_USE_EVENTFD 1483#if EV_USE_EVENTFD
1253 if (evfd >= 0) 1484 if (evfd >= 0)
1254 { 1485 {
1255 uint64_t counter = 1; 1486 uint64_t counter = 1;
1256 write (evfd, &counter, sizeof (uint64_t)); 1487 write (evfd, &counter, sizeof (uint64_t));
1257 } 1488 }
1258 else 1489 else
1259#endif 1490#endif
1491 {
1492 /* win32 people keep sending patches that change this write() to send() */
1493 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1494 /* so when you think this write should be a send instead, please find out */
1495 /* where your send() is from - it's definitely not the microsoft send, and */
1496 /* tell me. thank you. */
1260 write (evpipe [1], &old_errno, 1); 1497 write (evpipe [1], &(evpipe [1]), 1);
1498 }
1261 1499
1262 errno = old_errno; 1500 errno = old_errno;
1263 } 1501 }
1264} 1502}
1265 1503
… …
1268static void 1506static void
1269pipecb (EV_P_ ev_io *iow, int revents) 1507pipecb (EV_P_ ev_io *iow, int revents)
1270{ 1508{
1271 int i; 1509 int i;
1272 1510
1511 if (revents & EV_READ)
1512 {
1273#if EV_USE_EVENTFD 1513#if EV_USE_EVENTFD
1274 if (evfd >= 0) 1514 if (evfd >= 0)
1275 { 1515 {
1276 uint64_t counter; 1516 uint64_t counter;
1277 read (evfd, &counter, sizeof (uint64_t)); 1517 read (evfd, &counter, sizeof (uint64_t));
1278 } 1518 }
1279 else 1519 else
1280#endif 1520#endif
1281 { 1521 {
1282 char dummy; 1522 char dummy;
1523 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1283 read (evpipe [0], &dummy, 1); 1524 read (evpipe [0], &dummy, 1);
1525 }
1284 } 1526 }
1285 1527
1528 pipe_write_skipped = 0;
1529
1530#if EV_SIGNAL_ENABLE
1286 if (sig_pending) 1531 if (sig_pending)
1287 { 1532 {
1288 sig_pending = 0; 1533 sig_pending = 0;
1289 1534
1290 for (i = EV_NSIG - 1; i--; ) 1535 for (i = EV_NSIG - 1; i--; )
1291 if (expect_false (signals [i].pending)) 1536 if (expect_false (signals [i].pending))
1292 ev_feed_signal_event (EV_A_ i + 1); 1537 ev_feed_signal_event (EV_A_ i + 1);
1293 } 1538 }
1539#endif
1294 1540
1295#if EV_ASYNC_ENABLE 1541#if EV_ASYNC_ENABLE
1296 if (async_pending) 1542 if (async_pending)
1297 { 1543 {
1298 async_pending = 0; 1544 async_pending = 0;
… …
1307#endif 1553#endif
1308} 1554}
1309 1555
1310/*****************************************************************************/ 1556/*****************************************************************************/
1311 1557
1558void
1559ev_feed_signal (int signum)
1560{
1561#if EV_MULTIPLICITY
1562 EV_P = signals [signum - 1].loop;
1563
1564 if (!EV_A)
1565 return;
1566#endif
1567
1568 if (!ev_active (&pipe_w))
1569 return;
1570
1571 signals [signum - 1].pending = 1;
1572 evpipe_write (EV_A_ &sig_pending);
1573}
1574
1312static void 1575static void
1313ev_sighandler (int signum) 1576ev_sighandler (int signum)
1314{ 1577{
1315#if EV_MULTIPLICITY
1316 EV_P = signals [signum - 1].loop;
1317#endif
1318
1319#ifdef _WIN32 1578#ifdef _WIN32
1320 signal (signum, ev_sighandler); 1579 signal (signum, ev_sighandler);
1321#endif 1580#endif
1322 1581
1323 signals [signum - 1].pending = 1; 1582 ev_feed_signal (signum);
1324 evpipe_write (EV_A_ &sig_pending);
1325} 1583}
1326 1584
1327void noinline 1585void noinline
1328ev_feed_signal_event (EV_P_ int signum) 1586ev_feed_signal_event (EV_P_ int signum)
1329{ 1587{
… …
1366 break; 1624 break;
1367 } 1625 }
1368} 1626}
1369#endif 1627#endif
1370 1628
1629#endif
1630
1371/*****************************************************************************/ 1631/*****************************************************************************/
1372 1632
1633#if EV_CHILD_ENABLE
1373static WL childs [EV_PID_HASHSIZE]; 1634static WL childs [EV_PID_HASHSIZE];
1374
1375#ifndef _WIN32
1376 1635
1377static ev_signal childev; 1636static ev_signal childev;
1378 1637
1379#ifndef WIFCONTINUED 1638#ifndef WIFCONTINUED
1380# define WIFCONTINUED(status) 0 1639# define WIFCONTINUED(status) 0
… …
1385child_reap (EV_P_ int chain, int pid, int status) 1644child_reap (EV_P_ int chain, int pid, int status)
1386{ 1645{
1387 ev_child *w; 1646 ev_child *w;
1388 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1647 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1389 1648
1390 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1649 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1391 { 1650 {
1392 if ((w->pid == pid || !w->pid) 1651 if ((w->pid == pid || !w->pid)
1393 && (!traced || (w->flags & 1))) 1652 && (!traced || (w->flags & 1)))
1394 { 1653 {
1395 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1654 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 */ 1679 /* 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 */ 1680 /* 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); 1681 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1423 1682
1424 child_reap (EV_A_ pid, pid, status); 1683 child_reap (EV_A_ pid, pid, status);
1425 if (EV_PID_HASHSIZE > 1) 1684 if ((EV_PID_HASHSIZE) > 1)
1426 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1685 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1427} 1686}
1428 1687
1429#endif 1688#endif
1430 1689
1431/*****************************************************************************/ 1690/*****************************************************************************/
1432 1691
1692#if EV_USE_IOCP
1693# include "ev_iocp.c"
1694#endif
1433#if EV_USE_PORT 1695#if EV_USE_PORT
1434# include "ev_port.c" 1696# include "ev_port.c"
1435#endif 1697#endif
1436#if EV_USE_KQUEUE 1698#if EV_USE_KQUEUE
1437# include "ev_kqueue.c" 1699# include "ev_kqueue.c"
… …
1444#endif 1706#endif
1445#if EV_USE_SELECT 1707#if EV_USE_SELECT
1446# include "ev_select.c" 1708# include "ev_select.c"
1447#endif 1709#endif
1448 1710
1449int 1711int ecb_cold
1450ev_version_major (void) 1712ev_version_major (void)
1451{ 1713{
1452 return EV_VERSION_MAJOR; 1714 return EV_VERSION_MAJOR;
1453} 1715}
1454 1716
1455int 1717int ecb_cold
1456ev_version_minor (void) 1718ev_version_minor (void)
1457{ 1719{
1458 return EV_VERSION_MINOR; 1720 return EV_VERSION_MINOR;
1459} 1721}
1460 1722
1461/* return true if we are running with elevated privileges and should ignore env variables */ 1723/* return true if we are running with elevated privileges and should ignore env variables */
1462int inline_size 1724int inline_size ecb_cold
1463enable_secure (void) 1725enable_secure (void)
1464{ 1726{
1465#ifdef _WIN32 1727#ifdef _WIN32
1466 return 0; 1728 return 0;
1467#else 1729#else
1468 return getuid () != geteuid () 1730 return getuid () != geteuid ()
1469 || getgid () != getegid (); 1731 || getgid () != getegid ();
1470#endif 1732#endif
1471} 1733}
1472 1734
1473unsigned int 1735unsigned int ecb_cold
1474ev_supported_backends (void) 1736ev_supported_backends (void)
1475{ 1737{
1476 unsigned int flags = 0; 1738 unsigned int flags = 0;
1477 1739
1478 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1740 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1482 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1744 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1483 1745
1484 return flags; 1746 return flags;
1485} 1747}
1486 1748
1487unsigned int 1749unsigned int ecb_cold
1488ev_recommended_backends (void) 1750ev_recommended_backends (void)
1489{ 1751{
1490 unsigned int flags = ev_supported_backends (); 1752 unsigned int flags = ev_supported_backends ();
1491 1753
1492#ifndef __NetBSD__ 1754#ifndef __NetBSD__
… …
1497#ifdef __APPLE__ 1759#ifdef __APPLE__
1498 /* only select works correctly on that "unix-certified" platform */ 1760 /* only select works correctly on that "unix-certified" platform */
1499 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1761 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1500 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1762 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1501#endif 1763#endif
1764#ifdef __FreeBSD__
1765 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1766#endif
1502 1767
1503 return flags; 1768 return flags;
1504} 1769}
1505 1770
1506unsigned int 1771unsigned int ecb_cold
1507ev_embeddable_backends (void) 1772ev_embeddable_backends (void)
1508{ 1773{
1509 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1774 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1510 1775
1511 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1776 /* 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 */ 1777 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1513 flags &= ~EVBACKEND_EPOLL; 1778 flags &= ~EVBACKEND_EPOLL;
1514 1779
1515 return flags; 1780 return flags;
1516} 1781}
1517 1782
1518unsigned int 1783unsigned int
1519ev_backend (EV_P) 1784ev_backend (EV_P)
1520{ 1785{
1521 return backend; 1786 return backend;
1522} 1787}
1523 1788
1524#if EV_MINIMAL < 2 1789#if EV_FEATURE_API
1525unsigned int 1790unsigned int
1526ev_loop_count (EV_P) 1791ev_iteration (EV_P)
1527{ 1792{
1528 return loop_count; 1793 return loop_count;
1529} 1794}
1530 1795
1531unsigned int 1796unsigned int
1532ev_loop_depth (EV_P) 1797ev_depth (EV_P)
1533{ 1798{
1534 return loop_depth; 1799 return loop_depth;
1535} 1800}
1536 1801
1537void 1802void
… …
1556ev_userdata (EV_P) 1821ev_userdata (EV_P)
1557{ 1822{
1558 return userdata; 1823 return userdata;
1559} 1824}
1560 1825
1826void
1561void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 1827ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1562{ 1828{
1563 invoke_cb = invoke_pending_cb; 1829 invoke_cb = invoke_pending_cb;
1564} 1830}
1565 1831
1832void
1566void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 1833ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1567{ 1834{
1568 release_cb = release; 1835 release_cb = release;
1569 acquire_cb = acquire; 1836 acquire_cb = acquire;
1570} 1837}
1571#endif 1838#endif
1572 1839
1573/* initialise a loop structure, must be zero-initialised */ 1840/* initialise a loop structure, must be zero-initialised */
1574static void noinline 1841static void noinline ecb_cold
1575loop_init (EV_P_ unsigned int flags) 1842loop_init (EV_P_ unsigned int flags)
1576{ 1843{
1577 if (!backend) 1844 if (!backend)
1578 { 1845 {
1846 origflags = flags;
1847
1579#if EV_USE_REALTIME 1848#if EV_USE_REALTIME
1580 if (!have_realtime) 1849 if (!have_realtime)
1581 { 1850 {
1582 struct timespec ts; 1851 struct timespec ts;
1583 1852
… …
1605 if (!(flags & EVFLAG_NOENV) 1874 if (!(flags & EVFLAG_NOENV)
1606 && !enable_secure () 1875 && !enable_secure ()
1607 && getenv ("LIBEV_FLAGS")) 1876 && getenv ("LIBEV_FLAGS"))
1608 flags = atoi (getenv ("LIBEV_FLAGS")); 1877 flags = atoi (getenv ("LIBEV_FLAGS"));
1609 1878
1610 ev_rt_now = ev_time (); 1879 ev_rt_now = ev_time ();
1611 mn_now = get_clock (); 1880 mn_now = get_clock ();
1612 now_floor = mn_now; 1881 now_floor = mn_now;
1613 rtmn_diff = ev_rt_now - mn_now; 1882 rtmn_diff = ev_rt_now - mn_now;
1614#if EV_MINIMAL < 2 1883#if EV_FEATURE_API
1615 invoke_cb = ev_invoke_pending; 1884 invoke_cb = ev_invoke_pending;
1616#endif 1885#endif
1617 1886
1618 io_blocktime = 0.; 1887 io_blocktime = 0.;
1619 timeout_blocktime = 0.; 1888 timeout_blocktime = 0.;
1620 backend = 0; 1889 backend = 0;
1621 backend_fd = -1; 1890 backend_fd = -1;
1622 sig_pending = 0; 1891 sig_pending = 0;
1623#if EV_ASYNC_ENABLE 1892#if EV_ASYNC_ENABLE
1624 async_pending = 0; 1893 async_pending = 0;
1625#endif 1894#endif
1895 pipe_write_skipped = 0;
1896 pipe_write_wanted = 0;
1626#if EV_USE_INOTIFY 1897#if EV_USE_INOTIFY
1627 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1898 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1628#endif 1899#endif
1629#if EV_USE_SIGNALFD 1900#if EV_USE_SIGNALFD
1630 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1901 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1631#endif 1902#endif
1632 1903
1633 if (!(flags & 0x0000ffffU)) 1904 if (!(flags & EVBACKEND_MASK))
1634 flags |= ev_recommended_backends (); 1905 flags |= ev_recommended_backends ();
1635 1906
1907#if EV_USE_IOCP
1908 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1909#endif
1636#if EV_USE_PORT 1910#if EV_USE_PORT
1637 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1911 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1638#endif 1912#endif
1639#if EV_USE_KQUEUE 1913#if EV_USE_KQUEUE
1640 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1914 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1649 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1923 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1650#endif 1924#endif
1651 1925
1652 ev_prepare_init (&pending_w, pendingcb); 1926 ev_prepare_init (&pending_w, pendingcb);
1653 1927
1928#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1654 ev_init (&pipe_w, pipecb); 1929 ev_init (&pipe_w, pipecb);
1655 ev_set_priority (&pipe_w, EV_MAXPRI); 1930 ev_set_priority (&pipe_w, EV_MAXPRI);
1931#endif
1656 } 1932 }
1657} 1933}
1658 1934
1659/* free up a loop structure */ 1935/* free up a loop structure */
1660static void noinline 1936void ecb_cold
1661loop_destroy (EV_P) 1937ev_loop_destroy (EV_P)
1662{ 1938{
1663 int i; 1939 int i;
1940
1941#if EV_MULTIPLICITY
1942 /* mimic free (0) */
1943 if (!EV_A)
1944 return;
1945#endif
1946
1947#if EV_CLEANUP_ENABLE
1948 /* queue cleanup watchers (and execute them) */
1949 if (expect_false (cleanupcnt))
1950 {
1951 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1952 EV_INVOKE_PENDING;
1953 }
1954#endif
1955
1956#if EV_CHILD_ENABLE
1957 if (ev_is_active (&childev))
1958 {
1959 ev_ref (EV_A); /* child watcher */
1960 ev_signal_stop (EV_A_ &childev);
1961 }
1962#endif
1664 1963
1665 if (ev_is_active (&pipe_w)) 1964 if (ev_is_active (&pipe_w))
1666 { 1965 {
1667 /*ev_ref (EV_A);*/ 1966 /*ev_ref (EV_A);*/
1668 /*ev_io_stop (EV_A_ &pipe_w);*/ 1967 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1690#endif 1989#endif
1691 1990
1692 if (backend_fd >= 0) 1991 if (backend_fd >= 0)
1693 close (backend_fd); 1992 close (backend_fd);
1694 1993
1994#if EV_USE_IOCP
1995 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1996#endif
1695#if EV_USE_PORT 1997#if EV_USE_PORT
1696 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1998 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1697#endif 1999#endif
1698#if EV_USE_KQUEUE 2000#if EV_USE_KQUEUE
1699 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2001 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1726 array_free (periodic, EMPTY); 2028 array_free (periodic, EMPTY);
1727#endif 2029#endif
1728#if EV_FORK_ENABLE 2030#if EV_FORK_ENABLE
1729 array_free (fork, EMPTY); 2031 array_free (fork, EMPTY);
1730#endif 2032#endif
2033#if EV_CLEANUP_ENABLE
2034 array_free (cleanup, EMPTY);
2035#endif
1731 array_free (prepare, EMPTY); 2036 array_free (prepare, EMPTY);
1732 array_free (check, EMPTY); 2037 array_free (check, EMPTY);
1733#if EV_ASYNC_ENABLE 2038#if EV_ASYNC_ENABLE
1734 array_free (async, EMPTY); 2039 array_free (async, EMPTY);
1735#endif 2040#endif
1736 2041
1737 backend = 0; 2042 backend = 0;
2043
2044#if EV_MULTIPLICITY
2045 if (ev_is_default_loop (EV_A))
2046#endif
2047 ev_default_loop_ptr = 0;
2048#if EV_MULTIPLICITY
2049 else
2050 ev_free (EV_A);
2051#endif
1738} 2052}
1739 2053
1740#if EV_USE_INOTIFY 2054#if EV_USE_INOTIFY
1741inline_size void infy_fork (EV_P); 2055inline_size void infy_fork (EV_P);
1742#endif 2056#endif
… …
1757 infy_fork (EV_A); 2071 infy_fork (EV_A);
1758#endif 2072#endif
1759 2073
1760 if (ev_is_active (&pipe_w)) 2074 if (ev_is_active (&pipe_w))
1761 { 2075 {
1762 /* this "locks" the handlers against writing to the pipe */ 2076 /* 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 2077
1769 ev_ref (EV_A); 2078 ev_ref (EV_A);
1770 ev_io_stop (EV_A_ &pipe_w); 2079 ev_io_stop (EV_A_ &pipe_w);
1771 2080
1772#if EV_USE_EVENTFD 2081#if EV_USE_EVENTFD
… …
1778 { 2087 {
1779 EV_WIN32_CLOSE_FD (evpipe [0]); 2088 EV_WIN32_CLOSE_FD (evpipe [0]);
1780 EV_WIN32_CLOSE_FD (evpipe [1]); 2089 EV_WIN32_CLOSE_FD (evpipe [1]);
1781 } 2090 }
1782 2091
2092#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1783 evpipe_init (EV_A); 2093 evpipe_init (EV_A);
1784 /* now iterate over everything, in case we missed something */ 2094 /* now iterate over everything, in case we missed something */
1785 pipecb (EV_A_ &pipe_w, EV_READ); 2095 pipecb (EV_A_ &pipe_w, EV_READ);
2096#endif
1786 } 2097 }
1787 2098
1788 postfork = 0; 2099 postfork = 0;
1789} 2100}
1790 2101
1791#if EV_MULTIPLICITY 2102#if EV_MULTIPLICITY
1792 2103
1793struct ev_loop * 2104struct ev_loop * ecb_cold
1794ev_loop_new (unsigned int flags) 2105ev_loop_new (unsigned int flags)
1795{ 2106{
1796 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2107 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1797 2108
1798 memset (EV_A, 0, sizeof (struct ev_loop)); 2109 memset (EV_A, 0, sizeof (struct ev_loop));
1799 loop_init (EV_A_ flags); 2110 loop_init (EV_A_ flags);
1800 2111
1801 if (ev_backend (EV_A)) 2112 if (ev_backend (EV_A))
1802 return EV_A; 2113 return EV_A;
1803 2114
2115 ev_free (EV_A);
1804 return 0; 2116 return 0;
1805} 2117}
1806 2118
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 */ 2119#endif /* multiplicity */
1820 2120
1821#if EV_VERIFY 2121#if EV_VERIFY
1822static void noinline 2122static void noinline ecb_cold
1823verify_watcher (EV_P_ W w) 2123verify_watcher (EV_P_ W w)
1824{ 2124{
1825 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2125 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1826 2126
1827 if (w->pending) 2127 if (w->pending)
1828 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2128 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1829} 2129}
1830 2130
1831static void noinline 2131static void noinline ecb_cold
1832verify_heap (EV_P_ ANHE *heap, int N) 2132verify_heap (EV_P_ ANHE *heap, int N)
1833{ 2133{
1834 int i; 2134 int i;
1835 2135
1836 for (i = HEAP0; i < N + HEAP0; ++i) 2136 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1841 2141
1842 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2142 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1843 } 2143 }
1844} 2144}
1845 2145
1846static void noinline 2146static void noinline ecb_cold
1847array_verify (EV_P_ W *ws, int cnt) 2147array_verify (EV_P_ W *ws, int cnt)
1848{ 2148{
1849 while (cnt--) 2149 while (cnt--)
1850 { 2150 {
1851 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2151 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1852 verify_watcher (EV_A_ ws [cnt]); 2152 verify_watcher (EV_A_ ws [cnt]);
1853 } 2153 }
1854} 2154}
1855#endif 2155#endif
1856 2156
1857#if EV_MINIMAL < 2 2157#if EV_FEATURE_API
1858void 2158void ecb_cold
1859ev_loop_verify (EV_P) 2159ev_verify (EV_P)
1860{ 2160{
1861#if EV_VERIFY 2161#if EV_VERIFY
1862 int i; 2162 int i;
1863 WL w; 2163 WL w;
1864 2164
… …
1898#if EV_FORK_ENABLE 2198#if EV_FORK_ENABLE
1899 assert (forkmax >= forkcnt); 2199 assert (forkmax >= forkcnt);
1900 array_verify (EV_A_ (W *)forks, forkcnt); 2200 array_verify (EV_A_ (W *)forks, forkcnt);
1901#endif 2201#endif
1902 2202
2203#if EV_CLEANUP_ENABLE
2204 assert (cleanupmax >= cleanupcnt);
2205 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2206#endif
2207
1903#if EV_ASYNC_ENABLE 2208#if EV_ASYNC_ENABLE
1904 assert (asyncmax >= asynccnt); 2209 assert (asyncmax >= asynccnt);
1905 array_verify (EV_A_ (W *)asyncs, asynccnt); 2210 array_verify (EV_A_ (W *)asyncs, asynccnt);
1906#endif 2211#endif
1907 2212
2213#if EV_PREPARE_ENABLE
1908 assert (preparemax >= preparecnt); 2214 assert (preparemax >= preparecnt);
1909 array_verify (EV_A_ (W *)prepares, preparecnt); 2215 array_verify (EV_A_ (W *)prepares, preparecnt);
2216#endif
1910 2217
2218#if EV_CHECK_ENABLE
1911 assert (checkmax >= checkcnt); 2219 assert (checkmax >= checkcnt);
1912 array_verify (EV_A_ (W *)checks, checkcnt); 2220 array_verify (EV_A_ (W *)checks, checkcnt);
2221#endif
1913 2222
1914# if 0 2223# if 0
2224#if EV_CHILD_ENABLE
1915 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2225 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) 2226 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2227#endif
1917# endif 2228# endif
1918#endif 2229#endif
1919} 2230}
1920#endif 2231#endif
1921 2232
1922#if EV_MULTIPLICITY 2233#if EV_MULTIPLICITY
1923struct ev_loop * 2234struct ev_loop * ecb_cold
1924ev_default_loop_init (unsigned int flags)
1925#else 2235#else
1926int 2236int
2237#endif
1927ev_default_loop (unsigned int flags) 2238ev_default_loop (unsigned int flags)
1928#endif
1929{ 2239{
1930 if (!ev_default_loop_ptr) 2240 if (!ev_default_loop_ptr)
1931 { 2241 {
1932#if EV_MULTIPLICITY 2242#if EV_MULTIPLICITY
1933 EV_P = ev_default_loop_ptr = &default_loop_struct; 2243 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1937 2247
1938 loop_init (EV_A_ flags); 2248 loop_init (EV_A_ flags);
1939 2249
1940 if (ev_backend (EV_A)) 2250 if (ev_backend (EV_A))
1941 { 2251 {
1942#ifndef _WIN32 2252#if EV_CHILD_ENABLE
1943 ev_signal_init (&childev, childcb, SIGCHLD); 2253 ev_signal_init (&childev, childcb, SIGCHLD);
1944 ev_set_priority (&childev, EV_MAXPRI); 2254 ev_set_priority (&childev, EV_MAXPRI);
1945 ev_signal_start (EV_A_ &childev); 2255 ev_signal_start (EV_A_ &childev);
1946 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2256 ev_unref (EV_A); /* child watcher should not keep loop alive */
1947#endif 2257#endif
… …
1952 2262
1953 return ev_default_loop_ptr; 2263 return ev_default_loop_ptr;
1954} 2264}
1955 2265
1956void 2266void
1957ev_default_destroy (void) 2267ev_loop_fork (EV_P)
1958{ 2268{
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 */ 2269 postfork = 1; /* must be in line with ev_default_fork */
1981} 2270}
1982 2271
1983/*****************************************************************************/ 2272/*****************************************************************************/
1984 2273
1985void 2274void
… …
2007 2296
2008 for (pri = NUMPRI; pri--; ) 2297 for (pri = NUMPRI; pri--; )
2009 while (pendingcnt [pri]) 2298 while (pendingcnt [pri])
2010 { 2299 {
2011 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2300 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 2301
2016 p->w->pending = 0; 2302 p->w->pending = 0;
2017 EV_CB_INVOKE (p->w, p->events); 2303 EV_CB_INVOKE (p->w, p->events);
2018 EV_FREQUENT_CHECK; 2304 EV_FREQUENT_CHECK;
2019 } 2305 }
… …
2076 EV_FREQUENT_CHECK; 2362 EV_FREQUENT_CHECK;
2077 feed_reverse (EV_A_ (W)w); 2363 feed_reverse (EV_A_ (W)w);
2078 } 2364 }
2079 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2365 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2080 2366
2081 feed_reverse_done (EV_A_ EV_TIMEOUT); 2367 feed_reverse_done (EV_A_ EV_TIMER);
2082 } 2368 }
2083} 2369}
2084 2370
2085#if EV_PERIODIC_ENABLE 2371#if EV_PERIODIC_ENABLE
2372
2373static void noinline
2374periodic_recalc (EV_P_ ev_periodic *w)
2375{
2376 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2377 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2378
2379 /* the above almost always errs on the low side */
2380 while (at <= ev_rt_now)
2381 {
2382 ev_tstamp nat = at + w->interval;
2383
2384 /* when resolution fails us, we use ev_rt_now */
2385 if (expect_false (nat == at))
2386 {
2387 at = ev_rt_now;
2388 break;
2389 }
2390
2391 at = nat;
2392 }
2393
2394 ev_at (w) = at;
2395}
2396
2086/* make periodics pending */ 2397/* make periodics pending */
2087inline_size void 2398inline_size void
2088periodics_reify (EV_P) 2399periodics_reify (EV_P)
2089{ 2400{
2090 EV_FREQUENT_CHECK; 2401 EV_FREQUENT_CHECK;
… …
2109 ANHE_at_cache (periodics [HEAP0]); 2420 ANHE_at_cache (periodics [HEAP0]);
2110 downheap (periodics, periodiccnt, HEAP0); 2421 downheap (periodics, periodiccnt, HEAP0);
2111 } 2422 }
2112 else if (w->interval) 2423 else if (w->interval)
2113 { 2424 {
2114 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2425 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]); 2426 ANHE_at_cache (periodics [HEAP0]);
2129 downheap (periodics, periodiccnt, HEAP0); 2427 downheap (periodics, periodiccnt, HEAP0);
2130 } 2428 }
2131 else 2429 else
2132 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2430 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2139 feed_reverse_done (EV_A_ EV_PERIODIC); 2437 feed_reverse_done (EV_A_ EV_PERIODIC);
2140 } 2438 }
2141} 2439}
2142 2440
2143/* simply recalculate all periodics */ 2441/* simply recalculate all periodics */
2144/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2442/* TODO: maybe ensure that at least one event happens when jumping forward? */
2145static void noinline 2443static void noinline ecb_cold
2146periodics_reschedule (EV_P) 2444periodics_reschedule (EV_P)
2147{ 2445{
2148 int i; 2446 int i;
2149 2447
2150 /* adjust periodics after time jump */ 2448 /* adjust periodics after time jump */
… …
2153 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2451 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2154 2452
2155 if (w->reschedule_cb) 2453 if (w->reschedule_cb)
2156 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2454 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2157 else if (w->interval) 2455 else if (w->interval)
2158 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2456 periodic_recalc (EV_A_ w);
2159 2457
2160 ANHE_at_cache (periodics [i]); 2458 ANHE_at_cache (periodics [i]);
2161 } 2459 }
2162 2460
2163 reheap (periodics, periodiccnt); 2461 reheap (periodics, periodiccnt);
2164} 2462}
2165#endif 2463#endif
2166 2464
2167/* adjust all timers by a given offset */ 2465/* adjust all timers by a given offset */
2168static void noinline 2466static void noinline ecb_cold
2169timers_reschedule (EV_P_ ev_tstamp adjust) 2467timers_reschedule (EV_P_ ev_tstamp adjust)
2170{ 2468{
2171 int i; 2469 int i;
2172 2470
2173 for (i = 0; i < timercnt; ++i) 2471 for (i = 0; i < timercnt; ++i)
… …
2210 * doesn't hurt either as we only do this on time-jumps or 2508 * doesn't hurt either as we only do this on time-jumps or
2211 * in the unlikely event of having been preempted here. 2509 * in the unlikely event of having been preempted here.
2212 */ 2510 */
2213 for (i = 4; --i; ) 2511 for (i = 4; --i; )
2214 { 2512 {
2513 ev_tstamp diff;
2215 rtmn_diff = ev_rt_now - mn_now; 2514 rtmn_diff = ev_rt_now - mn_now;
2216 2515
2516 diff = odiff - rtmn_diff;
2517
2217 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2518 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2218 return; /* all is well */ 2519 return; /* all is well */
2219 2520
2220 ev_rt_now = ev_time (); 2521 ev_rt_now = ev_time ();
2221 mn_now = get_clock (); 2522 mn_now = get_clock ();
2222 now_floor = mn_now; 2523 now_floor = mn_now;
… …
2245 mn_now = ev_rt_now; 2546 mn_now = ev_rt_now;
2246 } 2547 }
2247} 2548}
2248 2549
2249void 2550void
2250ev_loop (EV_P_ int flags) 2551ev_run (EV_P_ int flags)
2251{ 2552{
2252#if EV_MINIMAL < 2 2553#if EV_FEATURE_API
2253 ++loop_depth; 2554 ++loop_depth;
2254#endif 2555#endif
2255 2556
2256 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2557 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2257 2558
2258 loop_done = EVUNLOOP_CANCEL; 2559 loop_done = EVBREAK_CANCEL;
2259 2560
2260 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2561 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2261 2562
2262 do 2563 do
2263 { 2564 {
2264#if EV_VERIFY >= 2 2565#if EV_VERIFY >= 2
2265 ev_loop_verify (EV_A); 2566 ev_verify (EV_A);
2266#endif 2567#endif
2267 2568
2268#ifndef _WIN32 2569#ifndef _WIN32
2269 if (expect_false (curpid)) /* penalise the forking check even more */ 2570 if (expect_false (curpid)) /* penalise the forking check even more */
2270 if (expect_false (getpid () != curpid)) 2571 if (expect_false (getpid () != curpid))
… …
2282 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2583 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2283 EV_INVOKE_PENDING; 2584 EV_INVOKE_PENDING;
2284 } 2585 }
2285#endif 2586#endif
2286 2587
2588#if EV_PREPARE_ENABLE
2287 /* queue prepare watchers (and execute them) */ 2589 /* queue prepare watchers (and execute them) */
2288 if (expect_false (preparecnt)) 2590 if (expect_false (preparecnt))
2289 { 2591 {
2290 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2592 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2291 EV_INVOKE_PENDING; 2593 EV_INVOKE_PENDING;
2292 } 2594 }
2595#endif
2293 2596
2294 if (expect_false (loop_done)) 2597 if (expect_false (loop_done))
2295 break; 2598 break;
2296 2599
2297 /* we might have forked, so reify kernel state if necessary */ 2600 /* we might have forked, so reify kernel state if necessary */
… …
2304 /* calculate blocking time */ 2607 /* calculate blocking time */
2305 { 2608 {
2306 ev_tstamp waittime = 0.; 2609 ev_tstamp waittime = 0.;
2307 ev_tstamp sleeptime = 0.; 2610 ev_tstamp sleeptime = 0.;
2308 2611
2612 /* remember old timestamp for io_blocktime calculation */
2613 ev_tstamp prev_mn_now = mn_now;
2614
2615 /* update time to cancel out callback processing overhead */
2616 time_update (EV_A_ 1e100);
2617
2618 /* from now on, we want a pipe-wake-up */
2619 pipe_write_wanted = 1;
2620
2621 ECB_MEMORY_FENCE;
2622
2309 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2623 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2310 { 2624 {
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; 2625 waittime = MAX_BLOCKTIME;
2318 2626
2319 if (timercnt) 2627 if (timercnt)
2320 { 2628 {
2321 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2629 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2322 if (waittime > to) waittime = to; 2630 if (waittime > to) waittime = to;
2323 } 2631 }
2324 2632
2325#if EV_PERIODIC_ENABLE 2633#if EV_PERIODIC_ENABLE
2326 if (periodiccnt) 2634 if (periodiccnt)
2327 { 2635 {
2328 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2636 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2329 if (waittime > to) waittime = to; 2637 if (waittime > to) waittime = to;
2330 } 2638 }
2331#endif 2639#endif
2332 2640
2333 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2641 /* don't let timeouts decrease the waittime below timeout_blocktime */
2334 if (expect_false (waittime < timeout_blocktime)) 2642 if (expect_false (waittime < timeout_blocktime))
2335 waittime = timeout_blocktime; 2643 waittime = timeout_blocktime;
2644
2645 /* at this point, we NEED to wait, so we have to ensure */
2646 /* to pass a minimum nonzero value to the backend */
2647 if (expect_false (waittime < backend_mintime))
2648 waittime = backend_mintime;
2336 2649
2337 /* extra check because io_blocktime is commonly 0 */ 2650 /* extra check because io_blocktime is commonly 0 */
2338 if (expect_false (io_blocktime)) 2651 if (expect_false (io_blocktime))
2339 { 2652 {
2340 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2653 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2341 2654
2342 if (sleeptime > waittime - backend_fudge) 2655 if (sleeptime > waittime - backend_mintime)
2343 sleeptime = waittime - backend_fudge; 2656 sleeptime = waittime - backend_mintime;
2344 2657
2345 if (expect_true (sleeptime > 0.)) 2658 if (expect_true (sleeptime > 0.))
2346 { 2659 {
2347 ev_sleep (sleeptime); 2660 ev_sleep (sleeptime);
2348 waittime -= sleeptime; 2661 waittime -= sleeptime;
2349 } 2662 }
2350 } 2663 }
2351 } 2664 }
2352 2665
2353#if EV_MINIMAL < 2 2666#if EV_FEATURE_API
2354 ++loop_count; 2667 ++loop_count;
2355#endif 2668#endif
2356 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2669 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2357 backend_poll (EV_A_ waittime); 2670 backend_poll (EV_A_ waittime);
2358 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2671 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2672
2673 pipe_write_wanted = 0;
2674
2675 if (pipe_write_skipped)
2676 {
2677 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2678 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2679 }
2680
2359 2681
2360 /* update ev_rt_now, do magic */ 2682 /* update ev_rt_now, do magic */
2361 time_update (EV_A_ waittime + sleeptime); 2683 time_update (EV_A_ waittime + sleeptime);
2362 } 2684 }
2363 2685
… …
2370#if EV_IDLE_ENABLE 2692#if EV_IDLE_ENABLE
2371 /* queue idle watchers unless other events are pending */ 2693 /* queue idle watchers unless other events are pending */
2372 idle_reify (EV_A); 2694 idle_reify (EV_A);
2373#endif 2695#endif
2374 2696
2697#if EV_CHECK_ENABLE
2375 /* queue check watchers, to be executed first */ 2698 /* queue check watchers, to be executed first */
2376 if (expect_false (checkcnt)) 2699 if (expect_false (checkcnt))
2377 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2700 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2701#endif
2378 2702
2379 EV_INVOKE_PENDING; 2703 EV_INVOKE_PENDING;
2380 } 2704 }
2381 while (expect_true ( 2705 while (expect_true (
2382 activecnt 2706 activecnt
2383 && !loop_done 2707 && !loop_done
2384 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2708 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2385 )); 2709 ));
2386 2710
2387 if (loop_done == EVUNLOOP_ONE) 2711 if (loop_done == EVBREAK_ONE)
2388 loop_done = EVUNLOOP_CANCEL; 2712 loop_done = EVBREAK_CANCEL;
2389 2713
2390#if EV_MINIMAL < 2 2714#if EV_FEATURE_API
2391 --loop_depth; 2715 --loop_depth;
2392#endif 2716#endif
2393} 2717}
2394 2718
2395void 2719void
2396ev_unloop (EV_P_ int how) 2720ev_break (EV_P_ int how)
2397{ 2721{
2398 loop_done = how; 2722 loop_done = how;
2399} 2723}
2400 2724
2401void 2725void
… …
2549 EV_FREQUENT_CHECK; 2873 EV_FREQUENT_CHECK;
2550 2874
2551 wlist_del (&anfds[w->fd].head, (WL)w); 2875 wlist_del (&anfds[w->fd].head, (WL)w);
2552 ev_stop (EV_A_ (W)w); 2876 ev_stop (EV_A_ (W)w);
2553 2877
2554 fd_change (EV_A_ w->fd, 1); 2878 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2555 2879
2556 EV_FREQUENT_CHECK; 2880 EV_FREQUENT_CHECK;
2557} 2881}
2558 2882
2559void noinline 2883void noinline
… …
2651 if (w->reschedule_cb) 2975 if (w->reschedule_cb)
2652 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2976 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2653 else if (w->interval) 2977 else if (w->interval)
2654 { 2978 {
2655 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2979 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 */ 2980 periodic_recalc (EV_A_ w);
2657 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2658 } 2981 }
2659 else 2982 else
2660 ev_at (w) = w->offset; 2983 ev_at (w) = w->offset;
2661 2984
2662 EV_FREQUENT_CHECK; 2985 EV_FREQUENT_CHECK;
… …
2711#endif 3034#endif
2712 3035
2713#ifndef SA_RESTART 3036#ifndef SA_RESTART
2714# define SA_RESTART 0 3037# define SA_RESTART 0
2715#endif 3038#endif
3039
3040#if EV_SIGNAL_ENABLE
2716 3041
2717void noinline 3042void noinline
2718ev_signal_start (EV_P_ ev_signal *w) 3043ev_signal_start (EV_P_ ev_signal *w)
2719{ 3044{
2720 if (expect_false (ev_is_active (w))) 3045 if (expect_false (ev_is_active (w)))
… …
2781 sa.sa_handler = ev_sighandler; 3106 sa.sa_handler = ev_sighandler;
2782 sigfillset (&sa.sa_mask); 3107 sigfillset (&sa.sa_mask);
2783 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3108 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2784 sigaction (w->signum, &sa, 0); 3109 sigaction (w->signum, &sa, 0);
2785 3110
3111 if (origflags & EVFLAG_NOSIGMASK)
3112 {
2786 sigemptyset (&sa.sa_mask); 3113 sigemptyset (&sa.sa_mask);
2787 sigaddset (&sa.sa_mask, w->signum); 3114 sigaddset (&sa.sa_mask, w->signum);
2788 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3115 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3116 }
2789#endif 3117#endif
2790 } 3118 }
2791 3119
2792 EV_FREQUENT_CHECK; 3120 EV_FREQUENT_CHECK;
2793} 3121}
… …
2827 } 3155 }
2828 3156
2829 EV_FREQUENT_CHECK; 3157 EV_FREQUENT_CHECK;
2830} 3158}
2831 3159
3160#endif
3161
3162#if EV_CHILD_ENABLE
3163
2832void 3164void
2833ev_child_start (EV_P_ ev_child *w) 3165ev_child_start (EV_P_ ev_child *w)
2834{ 3166{
2835#if EV_MULTIPLICITY 3167#if EV_MULTIPLICITY
2836 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3168 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2839 return; 3171 return;
2840 3172
2841 EV_FREQUENT_CHECK; 3173 EV_FREQUENT_CHECK;
2842 3174
2843 ev_start (EV_A_ (W)w, 1); 3175 ev_start (EV_A_ (W)w, 1);
2844 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3176 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845 3177
2846 EV_FREQUENT_CHECK; 3178 EV_FREQUENT_CHECK;
2847} 3179}
2848 3180
2849void 3181void
… …
2853 if (expect_false (!ev_is_active (w))) 3185 if (expect_false (!ev_is_active (w)))
2854 return; 3186 return;
2855 3187
2856 EV_FREQUENT_CHECK; 3188 EV_FREQUENT_CHECK;
2857 3189
2858 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3190 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2859 ev_stop (EV_A_ (W)w); 3191 ev_stop (EV_A_ (W)w);
2860 3192
2861 EV_FREQUENT_CHECK; 3193 EV_FREQUENT_CHECK;
2862} 3194}
3195
3196#endif
2863 3197
2864#if EV_STAT_ENABLE 3198#if EV_STAT_ENABLE
2865 3199
2866# ifdef _WIN32 3200# ifdef _WIN32
2867# undef lstat 3201# undef lstat
… …
2928 if (!pend || pend == path) 3262 if (!pend || pend == path)
2929 break; 3263 break;
2930 3264
2931 *pend = 0; 3265 *pend = 0;
2932 w->wd = inotify_add_watch (fs_fd, path, mask); 3266 w->wd = inotify_add_watch (fs_fd, path, mask);
2933 } 3267 }
2934 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3268 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2935 } 3269 }
2936 } 3270 }
2937 3271
2938 if (w->wd >= 0) 3272 if (w->wd >= 0)
2939 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3273 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2940 3274
2941 /* now re-arm timer, if required */ 3275 /* now re-arm timer, if required */
2942 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3276 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2943 ev_timer_again (EV_A_ &w->timer); 3277 ev_timer_again (EV_A_ &w->timer);
2944 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3278 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2952 3286
2953 if (wd < 0) 3287 if (wd < 0)
2954 return; 3288 return;
2955 3289
2956 w->wd = -2; 3290 w->wd = -2;
2957 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3291 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2958 wlist_del (&fs_hash [slot].head, (WL)w); 3292 wlist_del (&fs_hash [slot].head, (WL)w);
2959 3293
2960 /* remove this watcher, if others are watching it, they will rearm */ 3294 /* remove this watcher, if others are watching it, they will rearm */
2961 inotify_rm_watch (fs_fd, wd); 3295 inotify_rm_watch (fs_fd, wd);
2962} 3296}
… …
2964static void noinline 3298static void noinline
2965infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3299infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2966{ 3300{
2967 if (slot < 0) 3301 if (slot < 0)
2968 /* overflow, need to check for all hash slots */ 3302 /* overflow, need to check for all hash slots */
2969 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3303 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2970 infy_wd (EV_A_ slot, wd, ev); 3304 infy_wd (EV_A_ slot, wd, ev);
2971 else 3305 else
2972 { 3306 {
2973 WL w_; 3307 WL w_;
2974 3308
2975 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3309 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2976 { 3310 {
2977 ev_stat *w = (ev_stat *)w_; 3311 ev_stat *w = (ev_stat *)w_;
2978 w_ = w_->next; /* lets us remove this watcher and all before it */ 3312 w_ = w_->next; /* lets us remove this watcher and all before it */
2979 3313
2980 if (w->wd == wd || wd == -1) 3314 if (w->wd == wd || wd == -1)
2981 { 3315 {
2982 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3316 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2983 { 3317 {
2984 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3318 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2985 w->wd = -1; 3319 w->wd = -1;
2986 infy_add (EV_A_ w); /* re-add, no matter what */ 3320 infy_add (EV_A_ w); /* re-add, no matter what */
2987 } 3321 }
2988 3322
2989 stat_timer_cb (EV_A_ &w->timer, 0); 3323 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3005 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3339 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3006 ofs += sizeof (struct inotify_event) + ev->len; 3340 ofs += sizeof (struct inotify_event) + ev->len;
3007 } 3341 }
3008} 3342}
3009 3343
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 3344inline_size void ecb_cold
3043ev_check_2625 (EV_P) 3345ev_check_2625 (EV_P)
3044{ 3346{
3045 /* kernels < 2.6.25 are borked 3347 /* kernels < 2.6.25 are borked
3046 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3348 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3047 */ 3349 */
… …
3103 ev_io_set (&fs_w, fs_fd, EV_READ); 3405 ev_io_set (&fs_w, fs_fd, EV_READ);
3104 ev_io_start (EV_A_ &fs_w); 3406 ev_io_start (EV_A_ &fs_w);
3105 ev_unref (EV_A); 3407 ev_unref (EV_A);
3106 } 3408 }
3107 3409
3108 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3410 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3109 { 3411 {
3110 WL w_ = fs_hash [slot].head; 3412 WL w_ = fs_hash [slot].head;
3111 fs_hash [slot].head = 0; 3413 fs_hash [slot].head = 0;
3112 3414
3113 while (w_) 3415 while (w_)
… …
3288 3590
3289 EV_FREQUENT_CHECK; 3591 EV_FREQUENT_CHECK;
3290} 3592}
3291#endif 3593#endif
3292 3594
3595#if EV_PREPARE_ENABLE
3293void 3596void
3294ev_prepare_start (EV_P_ ev_prepare *w) 3597ev_prepare_start (EV_P_ ev_prepare *w)
3295{ 3598{
3296 if (expect_false (ev_is_active (w))) 3599 if (expect_false (ev_is_active (w)))
3297 return; 3600 return;
… …
3323 3626
3324 ev_stop (EV_A_ (W)w); 3627 ev_stop (EV_A_ (W)w);
3325 3628
3326 EV_FREQUENT_CHECK; 3629 EV_FREQUENT_CHECK;
3327} 3630}
3631#endif
3328 3632
3633#if EV_CHECK_ENABLE
3329void 3634void
3330ev_check_start (EV_P_ ev_check *w) 3635ev_check_start (EV_P_ ev_check *w)
3331{ 3636{
3332 if (expect_false (ev_is_active (w))) 3637 if (expect_false (ev_is_active (w)))
3333 return; 3638 return;
… …
3359 3664
3360 ev_stop (EV_A_ (W)w); 3665 ev_stop (EV_A_ (W)w);
3361 3666
3362 EV_FREQUENT_CHECK; 3667 EV_FREQUENT_CHECK;
3363} 3668}
3669#endif
3364 3670
3365#if EV_EMBED_ENABLE 3671#if EV_EMBED_ENABLE
3366void noinline 3672void noinline
3367ev_embed_sweep (EV_P_ ev_embed *w) 3673ev_embed_sweep (EV_P_ ev_embed *w)
3368{ 3674{
3369 ev_loop (w->other, EVLOOP_NONBLOCK); 3675 ev_run (w->other, EVRUN_NOWAIT);
3370} 3676}
3371 3677
3372static void 3678static void
3373embed_io_cb (EV_P_ ev_io *io, int revents) 3679embed_io_cb (EV_P_ ev_io *io, int revents)
3374{ 3680{
3375 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3681 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3376 3682
3377 if (ev_cb (w)) 3683 if (ev_cb (w))
3378 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3684 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3379 else 3685 else
3380 ev_loop (w->other, EVLOOP_NONBLOCK); 3686 ev_run (w->other, EVRUN_NOWAIT);
3381} 3687}
3382 3688
3383static void 3689static void
3384embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3690embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3385{ 3691{
… …
3389 EV_P = w->other; 3695 EV_P = w->other;
3390 3696
3391 while (fdchangecnt) 3697 while (fdchangecnt)
3392 { 3698 {
3393 fd_reify (EV_A); 3699 fd_reify (EV_A);
3394 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3700 ev_run (EV_A_ EVRUN_NOWAIT);
3395 } 3701 }
3396 } 3702 }
3397} 3703}
3398 3704
3399static void 3705static void
… …
3405 3711
3406 { 3712 {
3407 EV_P = w->other; 3713 EV_P = w->other;
3408 3714
3409 ev_loop_fork (EV_A); 3715 ev_loop_fork (EV_A);
3410 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3716 ev_run (EV_A_ EVRUN_NOWAIT);
3411 } 3717 }
3412 3718
3413 ev_embed_start (EV_A_ w); 3719 ev_embed_start (EV_A_ w);
3414} 3720}
3415 3721
… …
3507 3813
3508 EV_FREQUENT_CHECK; 3814 EV_FREQUENT_CHECK;
3509} 3815}
3510#endif 3816#endif
3511 3817
3818#if EV_CLEANUP_ENABLE
3819void
3820ev_cleanup_start (EV_P_ ev_cleanup *w)
3821{
3822 if (expect_false (ev_is_active (w)))
3823 return;
3824
3825 EV_FREQUENT_CHECK;
3826
3827 ev_start (EV_A_ (W)w, ++cleanupcnt);
3828 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3829 cleanups [cleanupcnt - 1] = w;
3830
3831 /* cleanup watchers should never keep a refcount on the loop */
3832 ev_unref (EV_A);
3833 EV_FREQUENT_CHECK;
3834}
3835
3836void
3837ev_cleanup_stop (EV_P_ ev_cleanup *w)
3838{
3839 clear_pending (EV_A_ (W)w);
3840 if (expect_false (!ev_is_active (w)))
3841 return;
3842
3843 EV_FREQUENT_CHECK;
3844 ev_ref (EV_A);
3845
3846 {
3847 int active = ev_active (w);
3848
3849 cleanups [active - 1] = cleanups [--cleanupcnt];
3850 ev_active (cleanups [active - 1]) = active;
3851 }
3852
3853 ev_stop (EV_A_ (W)w);
3854
3855 EV_FREQUENT_CHECK;
3856}
3857#endif
3858
3512#if EV_ASYNC_ENABLE 3859#if EV_ASYNC_ENABLE
3513void 3860void
3514ev_async_start (EV_P_ ev_async *w) 3861ev_async_start (EV_P_ ev_async *w)
3515{ 3862{
3516 if (expect_false (ev_is_active (w))) 3863 if (expect_false (ev_is_active (w)))
3517 return; 3864 return;
3865
3866 w->sent = 0;
3518 3867
3519 evpipe_init (EV_A); 3868 evpipe_init (EV_A);
3520 3869
3521 EV_FREQUENT_CHECK; 3870 EV_FREQUENT_CHECK;
3522 3871
… …
3600{ 3949{
3601 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3950 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3602 3951
3603 if (expect_false (!once)) 3952 if (expect_false (!once))
3604 { 3953 {
3605 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3954 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3606 return; 3955 return;
3607 } 3956 }
3608 3957
3609 once->cb = cb; 3958 once->cb = cb;
3610 once->arg = arg; 3959 once->arg = arg;
… …
3625} 3974}
3626 3975
3627/*****************************************************************************/ 3976/*****************************************************************************/
3628 3977
3629#if EV_WALK_ENABLE 3978#if EV_WALK_ENABLE
3630void 3979void ecb_cold
3631ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3980ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3632{ 3981{
3633 int i, j; 3982 int i, j;
3634 ev_watcher_list *wl, *wn; 3983 ev_watcher_list *wl, *wn;
3635 3984
… …
3697 if (types & EV_ASYNC) 4046 if (types & EV_ASYNC)
3698 for (i = asynccnt; i--; ) 4047 for (i = asynccnt; i--; )
3699 cb (EV_A_ EV_ASYNC, asyncs [i]); 4048 cb (EV_A_ EV_ASYNC, asyncs [i]);
3700#endif 4049#endif
3701 4050
4051#if EV_PREPARE_ENABLE
3702 if (types & EV_PREPARE) 4052 if (types & EV_PREPARE)
3703 for (i = preparecnt; i--; ) 4053 for (i = preparecnt; i--; )
3704#if EV_EMBED_ENABLE 4054# if EV_EMBED_ENABLE
3705 if (ev_cb (prepares [i]) != embed_prepare_cb) 4055 if (ev_cb (prepares [i]) != embed_prepare_cb)
3706#endif 4056# endif
3707 cb (EV_A_ EV_PREPARE, prepares [i]); 4057 cb (EV_A_ EV_PREPARE, prepares [i]);
4058#endif
3708 4059
4060#if EV_CHECK_ENABLE
3709 if (types & EV_CHECK) 4061 if (types & EV_CHECK)
3710 for (i = checkcnt; i--; ) 4062 for (i = checkcnt; i--; )
3711 cb (EV_A_ EV_CHECK, checks [i]); 4063 cb (EV_A_ EV_CHECK, checks [i]);
4064#endif
3712 4065
4066#if EV_SIGNAL_ENABLE
3713 if (types & EV_SIGNAL) 4067 if (types & EV_SIGNAL)
3714 for (i = 0; i < EV_NSIG - 1; ++i) 4068 for (i = 0; i < EV_NSIG - 1; ++i)
3715 for (wl = signals [i].head; wl; ) 4069 for (wl = signals [i].head; wl; )
3716 { 4070 {
3717 wn = wl->next; 4071 wn = wl->next;
3718 cb (EV_A_ EV_SIGNAL, wl); 4072 cb (EV_A_ EV_SIGNAL, wl);
3719 wl = wn; 4073 wl = wn;
3720 } 4074 }
4075#endif
3721 4076
4077#if EV_CHILD_ENABLE
3722 if (types & EV_CHILD) 4078 if (types & EV_CHILD)
3723 for (i = EV_PID_HASHSIZE; i--; ) 4079 for (i = (EV_PID_HASHSIZE); i--; )
3724 for (wl = childs [i]; wl; ) 4080 for (wl = childs [i]; wl; )
3725 { 4081 {
3726 wn = wl->next; 4082 wn = wl->next;
3727 cb (EV_A_ EV_CHILD, wl); 4083 cb (EV_A_ EV_CHILD, wl);
3728 wl = wn; 4084 wl = wn;
3729 } 4085 }
4086#endif
3730/* EV_STAT 0x00001000 /* stat data changed */ 4087/* EV_STAT 0x00001000 /* stat data changed */
3731/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4088/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3732} 4089}
3733#endif 4090#endif
3734 4091
3735#if EV_MULTIPLICITY 4092#if EV_MULTIPLICITY
3736 #include "ev_wrap.h" 4093 #include "ev_wrap.h"
3737#endif 4094#endif
3738 4095
3739#ifdef __cplusplus 4096EV_CPP(})
3740}
3741#endif
3742 4097

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