ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.332 by root, Tue Mar 9 08:58:17 2010 UTC vs.
Revision 1.385 by root, Wed Jul 20 01:04:03 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>
… …
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
189# undef EV_AVOID_STDIO 201# undef EV_AVOID_STDIO
190#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
191 211
192/* 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 */
193 213
194/* try to deduce the maximum number of signals on this platform */ 214/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 215#if defined (EV_NSIG)
… …
207#elif defined (MAXSIG) 227#elif defined (MAXSIG)
208# define EV_NSIG (MAXSIG+1) 228# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 229#elif defined (MAX_SIG)
210# define EV_NSIG (MAX_SIG+1) 230# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 231#elif defined (SIGARRAYSIZE)
212# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 233#elif defined (_sys_nsig)
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 235#else
216# error "unable to find value for NSIG, please report" 236# error "unable to find value for NSIG, please report"
217/* 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! :) */
218# define EV_NSIG 65 239# define EV_NSIG 65
240#endif
241
242#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0
219#endif 244#endif
220 245
221#ifndef EV_USE_CLOCK_SYSCALL 246#ifndef EV_USE_CLOCK_SYSCALL
222# if __linux && __GLIBC__ >= 2 247# if __linux && __GLIBC__ >= 2
223# define EV_USE_CLOCK_SYSCALL 1 248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
224# else 249# else
225# define EV_USE_CLOCK_SYSCALL 0 250# define EV_USE_CLOCK_SYSCALL 0
226# endif 251# endif
227#endif 252#endif
228 253
229#ifndef EV_USE_MONOTONIC 254#ifndef EV_USE_MONOTONIC
230# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
231# define EV_USE_MONOTONIC 1 256# define EV_USE_MONOTONIC EV_FEATURE_OS
232# else 257# else
233# define EV_USE_MONOTONIC 0 258# define EV_USE_MONOTONIC 0
234# endif 259# endif
235#endif 260#endif
236 261
… …
238# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 263# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239#endif 264#endif
240 265
241#ifndef EV_USE_NANOSLEEP 266#ifndef EV_USE_NANOSLEEP
242# if _POSIX_C_SOURCE >= 199309L 267# if _POSIX_C_SOURCE >= 199309L
243# define EV_USE_NANOSLEEP 1 268# define EV_USE_NANOSLEEP EV_FEATURE_OS
244# else 269# else
245# define EV_USE_NANOSLEEP 0 270# define EV_USE_NANOSLEEP 0
246# endif 271# endif
247#endif 272#endif
248 273
249#ifndef EV_USE_SELECT 274#ifndef EV_USE_SELECT
250# define EV_USE_SELECT 1 275# define EV_USE_SELECT EV_FEATURE_BACKENDS
251#endif 276#endif
252 277
253#ifndef EV_USE_POLL 278#ifndef EV_USE_POLL
254# ifdef _WIN32 279# ifdef _WIN32
255# define EV_USE_POLL 0 280# define EV_USE_POLL 0
256# else 281# else
257# define EV_USE_POLL 1 282# define EV_USE_POLL EV_FEATURE_BACKENDS
258# endif 283# endif
259#endif 284#endif
260 285
261#ifndef EV_USE_EPOLL 286#ifndef EV_USE_EPOLL
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 287# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263# define EV_USE_EPOLL 1 288# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264# else 289# else
265# define EV_USE_EPOLL 0 290# define EV_USE_EPOLL 0
266# endif 291# endif
267#endif 292#endif
268 293
… …
274# define EV_USE_PORT 0 299# define EV_USE_PORT 0
275#endif 300#endif
276 301
277#ifndef EV_USE_INOTIFY 302#ifndef EV_USE_INOTIFY
278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279# define EV_USE_INOTIFY 1 304# define EV_USE_INOTIFY EV_FEATURE_OS
280# else 305# else
281# define EV_USE_INOTIFY 0 306# define EV_USE_INOTIFY 0
282# endif 307# endif
283#endif 308#endif
284 309
285#ifndef EV_PID_HASHSIZE 310#ifndef EV_PID_HASHSIZE
286# if EV_MINIMAL 311# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
287# define EV_PID_HASHSIZE 1
288# else
289# define EV_PID_HASHSIZE 16
290# endif
291#endif 312#endif
292 313
293#ifndef EV_INOTIFY_HASHSIZE 314#ifndef EV_INOTIFY_HASHSIZE
294# if EV_MINIMAL 315# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
295# define EV_INOTIFY_HASHSIZE 1
296# else
297# define EV_INOTIFY_HASHSIZE 16
298# endif
299#endif 316#endif
300 317
301#ifndef EV_USE_EVENTFD 318#ifndef EV_USE_EVENTFD
302# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303# define EV_USE_EVENTFD 1 320# define EV_USE_EVENTFD EV_FEATURE_OS
304# else 321# else
305# define EV_USE_EVENTFD 0 322# define EV_USE_EVENTFD 0
306# endif 323# endif
307#endif 324#endif
308 325
309#ifndef EV_USE_SIGNALFD 326#ifndef EV_USE_SIGNALFD
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 327# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311# define EV_USE_SIGNALFD 1 328# define EV_USE_SIGNALFD EV_FEATURE_OS
312# else 329# else
313# define EV_USE_SIGNALFD 0 330# define EV_USE_SIGNALFD 0
314# endif 331# endif
315#endif 332#endif
316 333
… …
319# define EV_USE_4HEAP 1 336# define EV_USE_4HEAP 1
320# define EV_HEAP_CACHE_AT 1 337# define EV_HEAP_CACHE_AT 1
321#endif 338#endif
322 339
323#ifndef EV_VERIFY 340#ifndef EV_VERIFY
324# define EV_VERIFY !EV_MINIMAL 341# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325#endif 342#endif
326 343
327#ifndef EV_USE_4HEAP 344#ifndef EV_USE_4HEAP
328# define EV_USE_4HEAP !EV_MINIMAL 345# define EV_USE_4HEAP EV_FEATURE_DATA
329#endif 346#endif
330 347
331#ifndef EV_HEAP_CACHE_AT 348#ifndef EV_HEAP_CACHE_AT
332# define EV_HEAP_CACHE_AT !EV_MINIMAL 349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
333#endif 350#endif
334 351
335/* 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, */
336/* which makes programs even slower. might work on other unices, too. */ 353/* which makes programs even slower. might work on other unices, too. */
337#if EV_USE_CLOCK_SYSCALL 354#if EV_USE_CLOCK_SYSCALL
… …
368# undef EV_USE_INOTIFY 385# undef EV_USE_INOTIFY
369# define EV_USE_INOTIFY 0 386# define EV_USE_INOTIFY 0
370#endif 387#endif
371 388
372#if !EV_USE_NANOSLEEP 389#if !EV_USE_NANOSLEEP
373# ifndef _WIN32 390/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux)
374# include <sys/select.h> 392# include <sys/select.h>
375# endif 393# endif
376#endif 394#endif
377 395
378#if EV_USE_INOTIFY 396#if EV_USE_INOTIFY
379# include <sys/utsname.h>
380# include <sys/statfs.h> 397# include <sys/statfs.h>
381# include <sys/inotify.h> 398# include <sys/inotify.h>
382/* 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 */
383# ifndef IN_DONT_FOLLOW 400# ifndef IN_DONT_FOLLOW
384# undef EV_USE_INOTIFY 401# undef EV_USE_INOTIFY
… …
401# define EFD_CLOEXEC O_CLOEXEC 418# define EFD_CLOEXEC O_CLOEXEC
402# else 419# else
403# define EFD_CLOEXEC 02000000 420# define EFD_CLOEXEC 02000000
404# endif 421# endif
405# endif 422# endif
406# ifdef __cplusplus
407extern "C" {
408# endif
409int (eventfd) (unsigned int initval, int flags); 423EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410# ifdef __cplusplus
411}
412# endif
413#endif 424#endif
414 425
415#if EV_USE_SIGNALFD 426#if EV_USE_SIGNALFD
416/* 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 */
417# include <stdint.h> 428# include <stdint.h>
… …
423# define SFD_CLOEXEC O_CLOEXEC 434# define SFD_CLOEXEC O_CLOEXEC
424# else 435# else
425# define SFD_CLOEXEC 02000000 436# define SFD_CLOEXEC 02000000
426# endif 437# endif
427# endif 438# endif
428# ifdef __cplusplus
429extern "C" {
430# endif
431int signalfd (int fd, const sigset_t *mask, int flags); 439EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
432 440
433struct signalfd_siginfo 441struct signalfd_siginfo
434{ 442{
435 uint32_t ssi_signo; 443 uint32_t ssi_signo;
436 char pad[128 - sizeof (uint32_t)]; 444 char pad[128 - sizeof (uint32_t)];
437}; 445};
438# ifdef __cplusplus
439}
440# endif 446#endif
441#endif
442
443 447
444/**/ 448/**/
445 449
446#if EV_VERIFY >= 3 450#if EV_VERIFY >= 3
447# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 451# define EV_FREQUENT_CHECK ev_verify (EV_A)
448#else 452#else
449# define EV_FREQUENT_CHECK do { } while (0) 453# define EV_FREQUENT_CHECK do { } while (0)
450#endif 454#endif
451 455
452/* 456/*
453 * This is used to avoid floating point rounding problems. 457 * This is used to work around floating point rounding problems.
454 * It is added to ev_rt_now when scheduling periodics
455 * to ensure progress, time-wise, even when rounding
456 * errors are against us.
457 * This value is good at least till the year 4000. 458 * This value is good at least till the year 4000.
458 * Better solutions welcome.
459 */ 459 */
460#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 */
461 462
462#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) */
463#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) */
464 465
465#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)
466# 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)
467# 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
468#else 493#else
469# define expect(expr,value) (expr) 494 #define ecb_inline static
470# define noinline
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
472# define inline
473# 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
474#endif 508 #endif
509#endif
475 510
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 defined(_WIN32) && defined(MemoryBarrier)
517 #define ECB_MEMORY_FENCE MemoryBarrier ()
518 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
519 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
520 #endif
521#endif
522
523#ifndef ECB_MEMORY_FENCE
524 #include <pthread.h>
525
526 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
527 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
528 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
529 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
530#endif
531
532#if ECB_GCC_VERSION(3,1)
533 #define ecb_attribute(attrlist) __attribute__(attrlist)
534 #define ecb_is_constant(expr) __builtin_constant_p (expr)
535 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
536 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
537#else
538 #define ecb_attribute(attrlist)
539 #define ecb_is_constant(expr) 0
540 #define ecb_expect(expr,value) (expr)
541 #define ecb_prefetch(addr,rw,locality)
542#endif
543
544#define ecb_noinline ecb_attribute ((__noinline__))
545#define ecb_noreturn ecb_attribute ((__noreturn__))
546#define ecb_unused ecb_attribute ((__unused__))
547#define ecb_const ecb_attribute ((__const__))
548#define ecb_pure ecb_attribute ((__pure__))
549
550#if ECB_GCC_VERSION(4,3)
551 #define ecb_artificial ecb_attribute ((__artificial__))
552 #define ecb_hot ecb_attribute ((__hot__))
553 #define ecb_cold ecb_attribute ((__cold__))
554#else
555 #define ecb_artificial
556 #define ecb_hot
557 #define ecb_cold
558#endif
559
560/* put around conditional expressions if you are very sure that the */
561/* expression is mostly true or mostly false. note that these return */
562/* booleans, not the expression. */
476#define expect_false(expr) expect ((expr) != 0, 0) 563#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 564#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
565/* ecb.h end */
566
567#define expect_false(cond) ecb_expect_false (cond)
568#define expect_true(cond) ecb_expect_true (cond)
569#define noinline ecb_noinline
570
478#define inline_size static inline 571#define inline_size ecb_inline
479 572
480#if EV_MINIMAL 573#if EV_FEATURE_CODE
574# define inline_speed ecb_inline
575#else
481# define inline_speed static noinline 576# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 577#endif
485 578
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 579#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 580
488#if EV_MINPRI == EV_MAXPRI 581#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 594#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 595#define ev_at(w) ((WT)(w))->at
503 596
504#if EV_USE_REALTIME 597#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 598/* sig_atomic_t is used to avoid per-thread variables or locking but still */
506/* giving it a reasonably high chance of working on typical architetcures */ 599/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 600static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 601#endif
509 602
510#if EV_USE_MONOTONIC 603#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 604static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 618# include "ev_win32.c"
526#endif 619#endif
527 620
528/*****************************************************************************/ 621/*****************************************************************************/
529 622
623/* define a suitable floor function (only used by periodics atm) */
624
625#if EV_USE_FLOOR
626# include <math.h>
627# define ev_floor(v) floor (v)
628#else
629
630#include <float.h>
631
632/* a floor() replacement function, should be independent of ev_tstamp type */
633static ev_tstamp noinline
634ev_floor (ev_tstamp v)
635{
636 /* the choice of shift factor is not terribly important */
637#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
638 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
639#else
640 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
641#endif
642
643 /* argument too large for an unsigned long? */
644 if (expect_false (v >= shift))
645 {
646 ev_tstamp f;
647
648 if (v == v - 1.)
649 return v; /* very large number */
650
651 f = shift * ev_floor (v * (1. / shift));
652 return f + ev_floor (v - f);
653 }
654
655 /* special treatment for negative args? */
656 if (expect_false (v < 0.))
657 {
658 ev_tstamp f = -ev_floor (-v);
659
660 return f - (f == v ? 0 : 1);
661 }
662
663 /* fits into an unsigned long */
664 return (unsigned long)v;
665}
666
667#endif
668
669/*****************************************************************************/
670
671#ifdef __linux
672# include <sys/utsname.h>
673#endif
674
675static unsigned int noinline ecb_cold
676ev_linux_version (void)
677{
678#ifdef __linux
679 unsigned int v = 0;
680 struct utsname buf;
681 int i;
682 char *p = buf.release;
683
684 if (uname (&buf))
685 return 0;
686
687 for (i = 3+1; --i; )
688 {
689 unsigned int c = 0;
690
691 for (;;)
692 {
693 if (*p >= '0' && *p <= '9')
694 c = c * 10 + *p++ - '0';
695 else
696 {
697 p += *p == '.';
698 break;
699 }
700 }
701
702 v = (v << 8) | c;
703 }
704
705 return v;
706#else
707 return 0;
708#endif
709}
710
711/*****************************************************************************/
712
530#if EV_AVOID_STDIO 713#if EV_AVOID_STDIO
531static void noinline 714static void noinline ecb_cold
532ev_printerr (const char *msg) 715ev_printerr (const char *msg)
533{ 716{
534 write (STDERR_FILENO, msg, strlen (msg)); 717 write (STDERR_FILENO, msg, strlen (msg));
535} 718}
536#endif 719#endif
537 720
538static void (*syserr_cb)(const char *msg); 721static void (*syserr_cb)(const char *msg);
539 722
540void 723void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 724ev_set_syserr_cb (void (*cb)(const char *msg))
542{ 725{
543 syserr_cb = cb; 726 syserr_cb = cb;
544} 727}
545 728
546static void noinline 729static void noinline ecb_cold
547ev_syserr (const char *msg) 730ev_syserr (const char *msg)
548{ 731{
549 if (!msg) 732 if (!msg)
550 msg = "(libev) system error"; 733 msg = "(libev) system error";
551 734
552 if (syserr_cb) 735 if (syserr_cb)
553 syserr_cb (msg); 736 syserr_cb (msg);
554 else 737 else
555 { 738 {
556#if EV_AVOID_STDIO 739#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 740 ev_printerr (msg);
560 ev_printerr (": "); 741 ev_printerr (": ");
561 ev_printerr (err); 742 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 743 ev_printerr ("\n");
563#else 744#else
564 perror (msg); 745 perror (msg);
565#endif 746#endif
566 abort (); 747 abort ();
… …
568} 749}
569 750
570static void * 751static void *
571ev_realloc_emul (void *ptr, long size) 752ev_realloc_emul (void *ptr, long size)
572{ 753{
754#if __GLIBC__
755 return realloc (ptr, size);
756#else
573 /* some systems, notably openbsd and darwin, fail to properly 757 /* some systems, notably openbsd and darwin, fail to properly
574 * implement realloc (x, 0) (as required by both ansi c-98 and 758 * implement realloc (x, 0) (as required by both ansi c-89 and
575 * the single unix specification, so work around them here. 759 * the single unix specification, so work around them here.
576 */ 760 */
761
577 if (size) 762 if (size)
578 return realloc (ptr, size); 763 return realloc (ptr, size);
579 764
580 free (ptr); 765 free (ptr);
581 return 0; 766 return 0;
767#endif
582} 768}
583 769
584static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 770static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
585 771
586void 772void ecb_cold
587ev_set_allocator (void *(*cb)(void *ptr, long size)) 773ev_set_allocator (void *(*cb)(void *ptr, long size))
588{ 774{
589 alloc = cb; 775 alloc = cb;
590} 776}
591 777
… …
595 ptr = alloc (ptr, size); 781 ptr = alloc (ptr, size);
596 782
597 if (!ptr && size) 783 if (!ptr && size)
598 { 784 {
599#if EV_AVOID_STDIO 785#if EV_AVOID_STDIO
600 ev_printerr ("libev: memory allocation failed, aborting.\n"); 786 ev_printerr ("(libev) memory allocation failed, aborting.\n");
601#else 787#else
602 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 788 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
603#endif 789#endif
604 abort (); 790 abort ();
605 } 791 }
606 792
607 return ptr; 793 return ptr;
… …
624 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 810 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
625 unsigned char unused; 811 unsigned char unused;
626#if EV_USE_EPOLL 812#if EV_USE_EPOLL
627 unsigned int egen; /* generation counter to counter epoll bugs */ 813 unsigned int egen; /* generation counter to counter epoll bugs */
628#endif 814#endif
629#if EV_SELECT_IS_WINSOCKET 815#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
630 SOCKET handle; 816 SOCKET handle;
817#endif
818#if EV_USE_IOCP
819 OVERLAPPED or, ow;
631#endif 820#endif
632} ANFD; 821} ANFD;
633 822
634/* stores the pending event set for a given watcher */ 823/* stores the pending event set for a given watcher */
635typedef struct 824typedef struct
… …
690 879
691 static int ev_default_loop_ptr; 880 static int ev_default_loop_ptr;
692 881
693#endif 882#endif
694 883
695#if EV_MINIMAL < 2 884#if EV_FEATURE_API
696# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 885# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
697# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 886# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
698# define EV_INVOKE_PENDING invoke_cb (EV_A) 887# define EV_INVOKE_PENDING invoke_cb (EV_A)
699#else 888#else
700# define EV_RELEASE_CB (void)0 889# define EV_RELEASE_CB (void)0
701# define EV_ACQUIRE_CB (void)0 890# define EV_ACQUIRE_CB (void)0
702# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 891# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
703#endif 892#endif
704 893
705#define EVUNLOOP_RECURSE 0x80 894#define EVBREAK_RECURSE 0x80
706 895
707/*****************************************************************************/ 896/*****************************************************************************/
708 897
709#ifndef EV_HAVE_EV_TIME 898#ifndef EV_HAVE_EV_TIME
710ev_tstamp 899ev_tstamp
… …
754 if (delay > 0.) 943 if (delay > 0.)
755 { 944 {
756#if EV_USE_NANOSLEEP 945#if EV_USE_NANOSLEEP
757 struct timespec ts; 946 struct timespec ts;
758 947
759 ts.tv_sec = (time_t)delay; 948 EV_TS_SET (ts, delay);
760 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
761
762 nanosleep (&ts, 0); 949 nanosleep (&ts, 0);
763#elif defined(_WIN32) 950#elif defined(_WIN32)
764 Sleep ((unsigned long)(delay * 1e3)); 951 Sleep ((unsigned long)(delay * 1e3));
765#else 952#else
766 struct timeval tv; 953 struct timeval tv;
767 954
768 tv.tv_sec = (time_t)delay;
769 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
770
771 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 955 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
772 /* something not guaranteed by newer posix versions, but guaranteed */ 956 /* something not guaranteed by newer posix versions, but guaranteed */
773 /* by older ones */ 957 /* by older ones */
958 EV_TV_SET (tv, delay);
774 select (0, 0, 0, 0, &tv); 959 select (0, 0, 0, 0, &tv);
775#endif 960#endif
776 } 961 }
777} 962}
778 963
779/*****************************************************************************/ 964/*****************************************************************************/
780 965
781#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 966#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
782 967
783/* find a suitable new size for the given array, */ 968/* find a suitable new size for the given array, */
784/* hopefully by rounding to a ncie-to-malloc size */ 969/* hopefully by rounding to a nice-to-malloc size */
785inline_size int 970inline_size int
786array_nextsize (int elem, int cur, int cnt) 971array_nextsize (int elem, int cur, int cnt)
787{ 972{
788 int ncur = cur + 1; 973 int ncur = cur + 1;
789 974
… …
801 } 986 }
802 987
803 return ncur; 988 return ncur;
804} 989}
805 990
806static noinline void * 991static void * noinline ecb_cold
807array_realloc (int elem, void *base, int *cur, int cnt) 992array_realloc (int elem, void *base, int *cur, int cnt)
808{ 993{
809 *cur = array_nextsize (elem, *cur, cnt); 994 *cur = array_nextsize (elem, *cur, cnt);
810 return ev_realloc (base, elem * *cur); 995 return ev_realloc (base, elem * *cur);
811} 996}
… …
814 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 999 memset ((void *)(base), 0, sizeof (*(base)) * (count))
815 1000
816#define array_needsize(type,base,cur,cnt,init) \ 1001#define array_needsize(type,base,cur,cnt,init) \
817 if (expect_false ((cnt) > (cur))) \ 1002 if (expect_false ((cnt) > (cur))) \
818 { \ 1003 { \
819 int ocur_ = (cur); \ 1004 int ecb_unused ocur_ = (cur); \
820 (base) = (type *)array_realloc \ 1005 (base) = (type *)array_realloc \
821 (sizeof (type), (base), &(cur), (cnt)); \ 1006 (sizeof (type), (base), &(cur), (cnt)); \
822 init ((base) + (ocur_), (cur) - ocur_); \ 1007 init ((base) + (ocur_), (cur) - ocur_); \
823 } 1008 }
824 1009
… …
885} 1070}
886 1071
887/*****************************************************************************/ 1072/*****************************************************************************/
888 1073
889inline_speed void 1074inline_speed void
890fd_event_nc (EV_P_ int fd, int revents) 1075fd_event_nocheck (EV_P_ int fd, int revents)
891{ 1076{
892 ANFD *anfd = anfds + fd; 1077 ANFD *anfd = anfds + fd;
893 ev_io *w; 1078 ev_io *w;
894 1079
895 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1080 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
907fd_event (EV_P_ int fd, int revents) 1092fd_event (EV_P_ int fd, int revents)
908{ 1093{
909 ANFD *anfd = anfds + fd; 1094 ANFD *anfd = anfds + fd;
910 1095
911 if (expect_true (!anfd->reify)) 1096 if (expect_true (!anfd->reify))
912 fd_event_nc (EV_A_ fd, revents); 1097 fd_event_nocheck (EV_A_ fd, revents);
913} 1098}
914 1099
915void 1100void
916ev_feed_fd_event (EV_P_ int fd, int revents) 1101ev_feed_fd_event (EV_P_ int fd, int revents)
917{ 1102{
918 if (fd >= 0 && fd < anfdmax) 1103 if (fd >= 0 && fd < anfdmax)
919 fd_event_nc (EV_A_ fd, revents); 1104 fd_event_nocheck (EV_A_ fd, revents);
920} 1105}
921 1106
922/* make sure the external fd watch events are in-sync */ 1107/* make sure the external fd watch events are in-sync */
923/* with the kernel/libev internal state */ 1108/* with the kernel/libev internal state */
924inline_size void 1109inline_size void
925fd_reify (EV_P) 1110fd_reify (EV_P)
926{ 1111{
927 int i; 1112 int i;
928 1113
1114#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1115 for (i = 0; i < fdchangecnt; ++i)
1116 {
1117 int fd = fdchanges [i];
1118 ANFD *anfd = anfds + fd;
1119
1120 if (anfd->reify & EV__IOFDSET && anfd->head)
1121 {
1122 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1123
1124 if (handle != anfd->handle)
1125 {
1126 unsigned long arg;
1127
1128 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1129
1130 /* handle changed, but fd didn't - we need to do it in two steps */
1131 backend_modify (EV_A_ fd, anfd->events, 0);
1132 anfd->events = 0;
1133 anfd->handle = handle;
1134 }
1135 }
1136 }
1137#endif
1138
929 for (i = 0; i < fdchangecnt; ++i) 1139 for (i = 0; i < fdchangecnt; ++i)
930 { 1140 {
931 int fd = fdchanges [i]; 1141 int fd = fdchanges [i];
932 ANFD *anfd = anfds + fd; 1142 ANFD *anfd = anfds + fd;
933 ev_io *w; 1143 ev_io *w;
934 1144
935 unsigned char events = 0; 1145 unsigned char o_events = anfd->events;
1146 unsigned char o_reify = anfd->reify;
936 1147
937 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1148 anfd->reify = 0;
938 events |= (unsigned char)w->events;
939 1149
940#if EV_SELECT_IS_WINSOCKET 1150 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
941 if (events)
942 { 1151 {
943 unsigned long arg; 1152 anfd->events = 0;
944 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1153
945 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1154 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1155 anfd->events |= (unsigned char)w->events;
1156
1157 if (o_events != anfd->events)
1158 o_reify = EV__IOFDSET; /* actually |= */
946 } 1159 }
947#endif
948 1160
949 { 1161 if (o_reify & EV__IOFDSET)
950 unsigned char o_events = anfd->events;
951 unsigned char o_reify = anfd->reify;
952
953 anfd->reify = 0;
954 anfd->events = events;
955
956 if (o_events != events || o_reify & EV__IOFDSET)
957 backend_modify (EV_A_ fd, o_events, events); 1162 backend_modify (EV_A_ fd, o_events, anfd->events);
958 }
959 } 1163 }
960 1164
961 fdchangecnt = 0; 1165 fdchangecnt = 0;
962} 1166}
963 1167
… …
975 fdchanges [fdchangecnt - 1] = fd; 1179 fdchanges [fdchangecnt - 1] = fd;
976 } 1180 }
977} 1181}
978 1182
979/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1183/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
980inline_speed void 1184inline_speed void ecb_cold
981fd_kill (EV_P_ int fd) 1185fd_kill (EV_P_ int fd)
982{ 1186{
983 ev_io *w; 1187 ev_io *w;
984 1188
985 while ((w = (ev_io *)anfds [fd].head)) 1189 while ((w = (ev_io *)anfds [fd].head))
… …
987 ev_io_stop (EV_A_ w); 1191 ev_io_stop (EV_A_ w);
988 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1192 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
989 } 1193 }
990} 1194}
991 1195
992/* check whether the given fd is atcually valid, for error recovery */ 1196/* check whether the given fd is actually valid, for error recovery */
993inline_size int 1197inline_size int ecb_cold
994fd_valid (int fd) 1198fd_valid (int fd)
995{ 1199{
996#ifdef _WIN32 1200#ifdef _WIN32
997 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1201 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
998#else 1202#else
999 return fcntl (fd, F_GETFD) != -1; 1203 return fcntl (fd, F_GETFD) != -1;
1000#endif 1204#endif
1001} 1205}
1002 1206
1003/* called on EBADF to verify fds */ 1207/* called on EBADF to verify fds */
1004static void noinline 1208static void noinline ecb_cold
1005fd_ebadf (EV_P) 1209fd_ebadf (EV_P)
1006{ 1210{
1007 int fd; 1211 int fd;
1008 1212
1009 for (fd = 0; fd < anfdmax; ++fd) 1213 for (fd = 0; fd < anfdmax; ++fd)
… …
1011 if (!fd_valid (fd) && errno == EBADF) 1215 if (!fd_valid (fd) && errno == EBADF)
1012 fd_kill (EV_A_ fd); 1216 fd_kill (EV_A_ fd);
1013} 1217}
1014 1218
1015/* called on ENOMEM in select/poll to kill some fds and retry */ 1219/* called on ENOMEM in select/poll to kill some fds and retry */
1016static void noinline 1220static void noinline ecb_cold
1017fd_enomem (EV_P) 1221fd_enomem (EV_P)
1018{ 1222{
1019 int fd; 1223 int fd;
1020 1224
1021 for (fd = anfdmax; fd--; ) 1225 for (fd = anfdmax; fd--; )
… …
1039 anfds [fd].emask = 0; 1243 anfds [fd].emask = 0;
1040 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1244 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1041 } 1245 }
1042} 1246}
1043 1247
1248/* used to prepare libev internal fd's */
1249/* this is not fork-safe */
1250inline_speed void
1251fd_intern (int fd)
1252{
1253#ifdef _WIN32
1254 unsigned long arg = 1;
1255 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1256#else
1257 fcntl (fd, F_SETFD, FD_CLOEXEC);
1258 fcntl (fd, F_SETFL, O_NONBLOCK);
1259#endif
1260}
1261
1044/*****************************************************************************/ 1262/*****************************************************************************/
1045 1263
1046/* 1264/*
1047 * the heap functions want a real array index. array index 0 uis guaranteed to not 1265 * the heap functions want a real array index. array index 0 is guaranteed to not
1048 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1266 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1049 * the branching factor of the d-tree. 1267 * the branching factor of the d-tree.
1050 */ 1268 */
1051 1269
1052/* 1270/*
… …
1200 1418
1201static ANSIG signals [EV_NSIG - 1]; 1419static ANSIG signals [EV_NSIG - 1];
1202 1420
1203/*****************************************************************************/ 1421/*****************************************************************************/
1204 1422
1205/* used to prepare libev internal fd's */ 1423#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1206/* this is not fork-safe */
1207inline_speed void
1208fd_intern (int fd)
1209{
1210#ifdef _WIN32
1211 unsigned long arg = 1;
1212 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1213#else
1214 fcntl (fd, F_SETFD, FD_CLOEXEC);
1215 fcntl (fd, F_SETFL, O_NONBLOCK);
1216#endif
1217}
1218 1424
1219static void noinline 1425static void noinline ecb_cold
1220evpipe_init (EV_P) 1426evpipe_init (EV_P)
1221{ 1427{
1222 if (!ev_is_active (&pipe_w)) 1428 if (!ev_is_active (&pipe_w))
1223 { 1429 {
1224#if EV_USE_EVENTFD 1430# if EV_USE_EVENTFD
1225 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1431 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1226 if (evfd < 0 && errno == EINVAL) 1432 if (evfd < 0 && errno == EINVAL)
1227 evfd = eventfd (0, 0); 1433 evfd = eventfd (0, 0);
1228 1434
1229 if (evfd >= 0) 1435 if (evfd >= 0)
… …
1231 evpipe [0] = -1; 1437 evpipe [0] = -1;
1232 fd_intern (evfd); /* doing it twice doesn't hurt */ 1438 fd_intern (evfd); /* doing it twice doesn't hurt */
1233 ev_io_set (&pipe_w, evfd, EV_READ); 1439 ev_io_set (&pipe_w, evfd, EV_READ);
1234 } 1440 }
1235 else 1441 else
1236#endif 1442# endif
1237 { 1443 {
1238 while (pipe (evpipe)) 1444 while (pipe (evpipe))
1239 ev_syserr ("(libev) error creating signal/async pipe"); 1445 ev_syserr ("(libev) error creating signal/async pipe");
1240 1446
1241 fd_intern (evpipe [0]); 1447 fd_intern (evpipe [0]);
… …
1246 ev_io_start (EV_A_ &pipe_w); 1452 ev_io_start (EV_A_ &pipe_w);
1247 ev_unref (EV_A); /* watcher should not keep loop alive */ 1453 ev_unref (EV_A); /* watcher should not keep loop alive */
1248 } 1454 }
1249} 1455}
1250 1456
1251inline_size void 1457inline_speed void
1252evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1458evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1253{ 1459{
1254 if (!*flag) 1460 if (expect_true (*flag))
1461 /*return*//*D*/;
1462
1463 *flag = 1;
1464
1465 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1466
1467 pipe_write_skipped = 1;
1468
1469 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1470
1471 if (pipe_write_wanted)
1255 { 1472 {
1473 int old_errno;
1474
1475 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1476
1256 int old_errno = errno; /* save errno because write might clobber it */ 1477 old_errno = errno; /* save errno because write will clobber it */
1257
1258 *flag = 1;
1259 1478
1260#if EV_USE_EVENTFD 1479#if EV_USE_EVENTFD
1261 if (evfd >= 0) 1480 if (evfd >= 0)
1262 { 1481 {
1263 uint64_t counter = 1; 1482 uint64_t counter = 1;
1264 write (evfd, &counter, sizeof (uint64_t)); 1483 write (evfd, &counter, sizeof (uint64_t));
1265 } 1484 }
1266 else 1485 else
1267#endif 1486#endif
1487 {
1488 /* win32 people keep sending patches that change this write() to send() */
1489 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1490 /* so when you think this write should be a send instead, please find out */
1491 /* where your send() is from - it's definitely not the microsoft send, and */
1492 /* tell me. thank you. */
1268 write (evpipe [1], &old_errno, 1); 1493 write (evpipe [1], &(evpipe [1]), 1);
1494 }
1269 1495
1270 errno = old_errno; 1496 errno = old_errno;
1271 } 1497 }
1272} 1498}
1273 1499
… …
1276static void 1502static void
1277pipecb (EV_P_ ev_io *iow, int revents) 1503pipecb (EV_P_ ev_io *iow, int revents)
1278{ 1504{
1279 int i; 1505 int i;
1280 1506
1507 if (revents & EV_READ)
1508 {
1281#if EV_USE_EVENTFD 1509#if EV_USE_EVENTFD
1282 if (evfd >= 0) 1510 if (evfd >= 0)
1283 { 1511 {
1284 uint64_t counter; 1512 uint64_t counter;
1285 read (evfd, &counter, sizeof (uint64_t)); 1513 read (evfd, &counter, sizeof (uint64_t));
1286 } 1514 }
1287 else 1515 else
1288#endif 1516#endif
1289 { 1517 {
1290 char dummy; 1518 char dummy;
1519 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1291 read (evpipe [0], &dummy, 1); 1520 read (evpipe [0], &dummy, 1);
1521 }
1292 } 1522 }
1293 1523
1524 pipe_write_skipped = 0;
1525
1526#if EV_SIGNAL_ENABLE
1294 if (sig_pending) 1527 if (sig_pending)
1295 { 1528 {
1296 sig_pending = 0; 1529 sig_pending = 0;
1297 1530
1298 for (i = EV_NSIG - 1; i--; ) 1531 for (i = EV_NSIG - 1; i--; )
1299 if (expect_false (signals [i].pending)) 1532 if (expect_false (signals [i].pending))
1300 ev_feed_signal_event (EV_A_ i + 1); 1533 ev_feed_signal_event (EV_A_ i + 1);
1301 } 1534 }
1535#endif
1302 1536
1303#if EV_ASYNC_ENABLE 1537#if EV_ASYNC_ENABLE
1304 if (async_pending) 1538 if (async_pending)
1305 { 1539 {
1306 async_pending = 0; 1540 async_pending = 0;
… …
1315#endif 1549#endif
1316} 1550}
1317 1551
1318/*****************************************************************************/ 1552/*****************************************************************************/
1319 1553
1554void
1555ev_feed_signal (int signum)
1556{
1557#if EV_MULTIPLICITY
1558 EV_P = signals [signum - 1].loop;
1559
1560 if (!EV_A)
1561 return;
1562#endif
1563
1564 if (!ev_active (&pipe_w))
1565 return;
1566
1567 signals [signum - 1].pending = 1;
1568 evpipe_write (EV_A_ &sig_pending);
1569}
1570
1320static void 1571static void
1321ev_sighandler (int signum) 1572ev_sighandler (int signum)
1322{ 1573{
1323#if EV_MULTIPLICITY
1324 EV_P = signals [signum - 1].loop;
1325#endif
1326
1327#ifdef _WIN32 1574#ifdef _WIN32
1328 signal (signum, ev_sighandler); 1575 signal (signum, ev_sighandler);
1329#endif 1576#endif
1330 1577
1331 signals [signum - 1].pending = 1; 1578 ev_feed_signal (signum);
1332 evpipe_write (EV_A_ &sig_pending);
1333} 1579}
1334 1580
1335void noinline 1581void noinline
1336ev_feed_signal_event (EV_P_ int signum) 1582ev_feed_signal_event (EV_P_ int signum)
1337{ 1583{
… …
1374 break; 1620 break;
1375 } 1621 }
1376} 1622}
1377#endif 1623#endif
1378 1624
1625#endif
1626
1379/*****************************************************************************/ 1627/*****************************************************************************/
1380 1628
1629#if EV_CHILD_ENABLE
1381static WL childs [EV_PID_HASHSIZE]; 1630static WL childs [EV_PID_HASHSIZE];
1382
1383#ifndef _WIN32
1384 1631
1385static ev_signal childev; 1632static ev_signal childev;
1386 1633
1387#ifndef WIFCONTINUED 1634#ifndef WIFCONTINUED
1388# define WIFCONTINUED(status) 0 1635# define WIFCONTINUED(status) 0
… …
1393child_reap (EV_P_ int chain, int pid, int status) 1640child_reap (EV_P_ int chain, int pid, int status)
1394{ 1641{
1395 ev_child *w; 1642 ev_child *w;
1396 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1643 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1397 1644
1398 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1645 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1399 { 1646 {
1400 if ((w->pid == pid || !w->pid) 1647 if ((w->pid == pid || !w->pid)
1401 && (!traced || (w->flags & 1))) 1648 && (!traced || (w->flags & 1)))
1402 { 1649 {
1403 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1650 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1428 /* make sure we are called again until all children have been reaped */ 1675 /* make sure we are called again until all children have been reaped */
1429 /* we need to do it this way so that the callback gets called before we continue */ 1676 /* we need to do it this way so that the callback gets called before we continue */
1430 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1677 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1431 1678
1432 child_reap (EV_A_ pid, pid, status); 1679 child_reap (EV_A_ pid, pid, status);
1433 if (EV_PID_HASHSIZE > 1) 1680 if ((EV_PID_HASHSIZE) > 1)
1434 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1681 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1435} 1682}
1436 1683
1437#endif 1684#endif
1438 1685
1439/*****************************************************************************/ 1686/*****************************************************************************/
1440 1687
1688#if EV_USE_IOCP
1689# include "ev_iocp.c"
1690#endif
1441#if EV_USE_PORT 1691#if EV_USE_PORT
1442# include "ev_port.c" 1692# include "ev_port.c"
1443#endif 1693#endif
1444#if EV_USE_KQUEUE 1694#if EV_USE_KQUEUE
1445# include "ev_kqueue.c" 1695# include "ev_kqueue.c"
… …
1452#endif 1702#endif
1453#if EV_USE_SELECT 1703#if EV_USE_SELECT
1454# include "ev_select.c" 1704# include "ev_select.c"
1455#endif 1705#endif
1456 1706
1457int 1707int ecb_cold
1458ev_version_major (void) 1708ev_version_major (void)
1459{ 1709{
1460 return EV_VERSION_MAJOR; 1710 return EV_VERSION_MAJOR;
1461} 1711}
1462 1712
1463int 1713int ecb_cold
1464ev_version_minor (void) 1714ev_version_minor (void)
1465{ 1715{
1466 return EV_VERSION_MINOR; 1716 return EV_VERSION_MINOR;
1467} 1717}
1468 1718
1469/* return true if we are running with elevated privileges and should ignore env variables */ 1719/* return true if we are running with elevated privileges and should ignore env variables */
1470int inline_size 1720int inline_size ecb_cold
1471enable_secure (void) 1721enable_secure (void)
1472{ 1722{
1473#ifdef _WIN32 1723#ifdef _WIN32
1474 return 0; 1724 return 0;
1475#else 1725#else
1476 return getuid () != geteuid () 1726 return getuid () != geteuid ()
1477 || getgid () != getegid (); 1727 || getgid () != getegid ();
1478#endif 1728#endif
1479} 1729}
1480 1730
1481unsigned int 1731unsigned int ecb_cold
1482ev_supported_backends (void) 1732ev_supported_backends (void)
1483{ 1733{
1484 unsigned int flags = 0; 1734 unsigned int flags = 0;
1485 1735
1486 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1736 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1490 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1740 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1491 1741
1492 return flags; 1742 return flags;
1493} 1743}
1494 1744
1495unsigned int 1745unsigned int ecb_cold
1496ev_recommended_backends (void) 1746ev_recommended_backends (void)
1497{ 1747{
1498 unsigned int flags = ev_supported_backends (); 1748 unsigned int flags = ev_supported_backends ();
1499 1749
1500#ifndef __NetBSD__ 1750#ifndef __NetBSD__
… …
1505#ifdef __APPLE__ 1755#ifdef __APPLE__
1506 /* only select works correctly on that "unix-certified" platform */ 1756 /* only select works correctly on that "unix-certified" platform */
1507 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1757 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1508 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1758 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1509#endif 1759#endif
1760#ifdef __FreeBSD__
1761 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1762#endif
1510 1763
1511 return flags; 1764 return flags;
1512} 1765}
1513 1766
1514unsigned int 1767unsigned int ecb_cold
1515ev_embeddable_backends (void) 1768ev_embeddable_backends (void)
1516{ 1769{
1517 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1770 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1518 1771
1519 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1772 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1520 /* please fix it and tell me how to detect the fix */ 1773 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1521 flags &= ~EVBACKEND_EPOLL; 1774 flags &= ~EVBACKEND_EPOLL;
1522 1775
1523 return flags; 1776 return flags;
1524} 1777}
1525 1778
1526unsigned int 1779unsigned int
1527ev_backend (EV_P) 1780ev_backend (EV_P)
1528{ 1781{
1529 return backend; 1782 return backend;
1530} 1783}
1531 1784
1532#if EV_MINIMAL < 2 1785#if EV_FEATURE_API
1533unsigned int 1786unsigned int
1534ev_loop_count (EV_P) 1787ev_iteration (EV_P)
1535{ 1788{
1536 return loop_count; 1789 return loop_count;
1537} 1790}
1538 1791
1539unsigned int 1792unsigned int
1540ev_loop_depth (EV_P) 1793ev_depth (EV_P)
1541{ 1794{
1542 return loop_depth; 1795 return loop_depth;
1543} 1796}
1544 1797
1545void 1798void
… …
1564ev_userdata (EV_P) 1817ev_userdata (EV_P)
1565{ 1818{
1566 return userdata; 1819 return userdata;
1567} 1820}
1568 1821
1822void
1569void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 1823ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1570{ 1824{
1571 invoke_cb = invoke_pending_cb; 1825 invoke_cb = invoke_pending_cb;
1572} 1826}
1573 1827
1828void
1574void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 1829ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1575{ 1830{
1576 release_cb = release; 1831 release_cb = release;
1577 acquire_cb = acquire; 1832 acquire_cb = acquire;
1578} 1833}
1579#endif 1834#endif
1580 1835
1581/* initialise a loop structure, must be zero-initialised */ 1836/* initialise a loop structure, must be zero-initialised */
1582static void noinline 1837static void noinline ecb_cold
1583loop_init (EV_P_ unsigned int flags) 1838loop_init (EV_P_ unsigned int flags)
1584{ 1839{
1585 if (!backend) 1840 if (!backend)
1586 { 1841 {
1842 origflags = flags;
1843
1587#if EV_USE_REALTIME 1844#if EV_USE_REALTIME
1588 if (!have_realtime) 1845 if (!have_realtime)
1589 { 1846 {
1590 struct timespec ts; 1847 struct timespec ts;
1591 1848
… …
1613 if (!(flags & EVFLAG_NOENV) 1870 if (!(flags & EVFLAG_NOENV)
1614 && !enable_secure () 1871 && !enable_secure ()
1615 && getenv ("LIBEV_FLAGS")) 1872 && getenv ("LIBEV_FLAGS"))
1616 flags = atoi (getenv ("LIBEV_FLAGS")); 1873 flags = atoi (getenv ("LIBEV_FLAGS"));
1617 1874
1618 ev_rt_now = ev_time (); 1875 ev_rt_now = ev_time ();
1619 mn_now = get_clock (); 1876 mn_now = get_clock ();
1620 now_floor = mn_now; 1877 now_floor = mn_now;
1621 rtmn_diff = ev_rt_now - mn_now; 1878 rtmn_diff = ev_rt_now - mn_now;
1622#if EV_MINIMAL < 2 1879#if EV_FEATURE_API
1623 invoke_cb = ev_invoke_pending; 1880 invoke_cb = ev_invoke_pending;
1624#endif 1881#endif
1625 1882
1626 io_blocktime = 0.; 1883 io_blocktime = 0.;
1627 timeout_blocktime = 0.; 1884 timeout_blocktime = 0.;
1628 backend = 0; 1885 backend = 0;
1629 backend_fd = -1; 1886 backend_fd = -1;
1630 sig_pending = 0; 1887 sig_pending = 0;
1631#if EV_ASYNC_ENABLE 1888#if EV_ASYNC_ENABLE
1632 async_pending = 0; 1889 async_pending = 0;
1633#endif 1890#endif
1891 pipe_write_skipped = 0;
1892 pipe_write_wanted = 0;
1634#if EV_USE_INOTIFY 1893#if EV_USE_INOTIFY
1635 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1894 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1636#endif 1895#endif
1637#if EV_USE_SIGNALFD 1896#if EV_USE_SIGNALFD
1638 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1897 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1639#endif 1898#endif
1640 1899
1641 if (!(flags & 0x0000ffffU)) 1900 if (!(flags & EVBACKEND_MASK))
1642 flags |= ev_recommended_backends (); 1901 flags |= ev_recommended_backends ();
1643 1902
1903#if EV_USE_IOCP
1904 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1905#endif
1644#if EV_USE_PORT 1906#if EV_USE_PORT
1645 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1907 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1646#endif 1908#endif
1647#if EV_USE_KQUEUE 1909#if EV_USE_KQUEUE
1648 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1910 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1657 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1919 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1658#endif 1920#endif
1659 1921
1660 ev_prepare_init (&pending_w, pendingcb); 1922 ev_prepare_init (&pending_w, pendingcb);
1661 1923
1924#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1662 ev_init (&pipe_w, pipecb); 1925 ev_init (&pipe_w, pipecb);
1663 ev_set_priority (&pipe_w, EV_MAXPRI); 1926 ev_set_priority (&pipe_w, EV_MAXPRI);
1927#endif
1664 } 1928 }
1665} 1929}
1666 1930
1667/* free up a loop structure */ 1931/* free up a loop structure */
1668static void noinline 1932void ecb_cold
1669loop_destroy (EV_P) 1933ev_loop_destroy (EV_P)
1670{ 1934{
1671 int i; 1935 int i;
1936
1937#if EV_MULTIPLICITY
1938 /* mimic free (0) */
1939 if (!EV_A)
1940 return;
1941#endif
1942
1943#if EV_CLEANUP_ENABLE
1944 /* queue cleanup watchers (and execute them) */
1945 if (expect_false (cleanupcnt))
1946 {
1947 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1948 EV_INVOKE_PENDING;
1949 }
1950#endif
1951
1952#if EV_CHILD_ENABLE
1953 if (ev_is_active (&childev))
1954 {
1955 ev_ref (EV_A); /* child watcher */
1956 ev_signal_stop (EV_A_ &childev);
1957 }
1958#endif
1672 1959
1673 if (ev_is_active (&pipe_w)) 1960 if (ev_is_active (&pipe_w))
1674 { 1961 {
1675 /*ev_ref (EV_A);*/ 1962 /*ev_ref (EV_A);*/
1676 /*ev_io_stop (EV_A_ &pipe_w);*/ 1963 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1698#endif 1985#endif
1699 1986
1700 if (backend_fd >= 0) 1987 if (backend_fd >= 0)
1701 close (backend_fd); 1988 close (backend_fd);
1702 1989
1990#if EV_USE_IOCP
1991 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1992#endif
1703#if EV_USE_PORT 1993#if EV_USE_PORT
1704 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1994 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1705#endif 1995#endif
1706#if EV_USE_KQUEUE 1996#if EV_USE_KQUEUE
1707 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1997 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1734 array_free (periodic, EMPTY); 2024 array_free (periodic, EMPTY);
1735#endif 2025#endif
1736#if EV_FORK_ENABLE 2026#if EV_FORK_ENABLE
1737 array_free (fork, EMPTY); 2027 array_free (fork, EMPTY);
1738#endif 2028#endif
2029#if EV_CLEANUP_ENABLE
2030 array_free (cleanup, EMPTY);
2031#endif
1739 array_free (prepare, EMPTY); 2032 array_free (prepare, EMPTY);
1740 array_free (check, EMPTY); 2033 array_free (check, EMPTY);
1741#if EV_ASYNC_ENABLE 2034#if EV_ASYNC_ENABLE
1742 array_free (async, EMPTY); 2035 array_free (async, EMPTY);
1743#endif 2036#endif
1744 2037
1745 backend = 0; 2038 backend = 0;
2039
2040#if EV_MULTIPLICITY
2041 if (ev_is_default_loop (EV_A))
2042#endif
2043 ev_default_loop_ptr = 0;
2044#if EV_MULTIPLICITY
2045 else
2046 ev_free (EV_A);
2047#endif
1746} 2048}
1747 2049
1748#if EV_USE_INOTIFY 2050#if EV_USE_INOTIFY
1749inline_size void infy_fork (EV_P); 2051inline_size void infy_fork (EV_P);
1750#endif 2052#endif
… …
1765 infy_fork (EV_A); 2067 infy_fork (EV_A);
1766#endif 2068#endif
1767 2069
1768 if (ev_is_active (&pipe_w)) 2070 if (ev_is_active (&pipe_w))
1769 { 2071 {
1770 /* this "locks" the handlers against writing to the pipe */ 2072 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1771 /* while we modify the fd vars */
1772 sig_pending = 1;
1773#if EV_ASYNC_ENABLE
1774 async_pending = 1;
1775#endif
1776 2073
1777 ev_ref (EV_A); 2074 ev_ref (EV_A);
1778 ev_io_stop (EV_A_ &pipe_w); 2075 ev_io_stop (EV_A_ &pipe_w);
1779 2076
1780#if EV_USE_EVENTFD 2077#if EV_USE_EVENTFD
… …
1786 { 2083 {
1787 EV_WIN32_CLOSE_FD (evpipe [0]); 2084 EV_WIN32_CLOSE_FD (evpipe [0]);
1788 EV_WIN32_CLOSE_FD (evpipe [1]); 2085 EV_WIN32_CLOSE_FD (evpipe [1]);
1789 } 2086 }
1790 2087
2088#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1791 evpipe_init (EV_A); 2089 evpipe_init (EV_A);
1792 /* now iterate over everything, in case we missed something */ 2090 /* now iterate over everything, in case we missed something */
1793 pipecb (EV_A_ &pipe_w, EV_READ); 2091 pipecb (EV_A_ &pipe_w, EV_READ);
2092#endif
1794 } 2093 }
1795 2094
1796 postfork = 0; 2095 postfork = 0;
1797} 2096}
1798 2097
1799#if EV_MULTIPLICITY 2098#if EV_MULTIPLICITY
1800 2099
1801struct ev_loop * 2100struct ev_loop * ecb_cold
1802ev_loop_new (unsigned int flags) 2101ev_loop_new (unsigned int flags)
1803{ 2102{
1804 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2103 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1805 2104
1806 memset (EV_A, 0, sizeof (struct ev_loop)); 2105 memset (EV_A, 0, sizeof (struct ev_loop));
1807 loop_init (EV_A_ flags); 2106 loop_init (EV_A_ flags);
1808 2107
1809 if (ev_backend (EV_A)) 2108 if (ev_backend (EV_A))
1810 return EV_A; 2109 return EV_A;
1811 2110
2111 ev_free (EV_A);
1812 return 0; 2112 return 0;
1813} 2113}
1814 2114
1815void
1816ev_loop_destroy (EV_P)
1817{
1818 loop_destroy (EV_A);
1819 ev_free (loop);
1820}
1821
1822void
1823ev_loop_fork (EV_P)
1824{
1825 postfork = 1; /* must be in line with ev_default_fork */
1826}
1827#endif /* multiplicity */ 2115#endif /* multiplicity */
1828 2116
1829#if EV_VERIFY 2117#if EV_VERIFY
1830static void noinline 2118static void noinline ecb_cold
1831verify_watcher (EV_P_ W w) 2119verify_watcher (EV_P_ W w)
1832{ 2120{
1833 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2121 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1834 2122
1835 if (w->pending) 2123 if (w->pending)
1836 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2124 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1837} 2125}
1838 2126
1839static void noinline 2127static void noinline ecb_cold
1840verify_heap (EV_P_ ANHE *heap, int N) 2128verify_heap (EV_P_ ANHE *heap, int N)
1841{ 2129{
1842 int i; 2130 int i;
1843 2131
1844 for (i = HEAP0; i < N + HEAP0; ++i) 2132 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1849 2137
1850 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2138 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1851 } 2139 }
1852} 2140}
1853 2141
1854static void noinline 2142static void noinline ecb_cold
1855array_verify (EV_P_ W *ws, int cnt) 2143array_verify (EV_P_ W *ws, int cnt)
1856{ 2144{
1857 while (cnt--) 2145 while (cnt--)
1858 { 2146 {
1859 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2147 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1860 verify_watcher (EV_A_ ws [cnt]); 2148 verify_watcher (EV_A_ ws [cnt]);
1861 } 2149 }
1862} 2150}
1863#endif 2151#endif
1864 2152
1865#if EV_MINIMAL < 2 2153#if EV_FEATURE_API
1866void 2154void ecb_cold
1867ev_loop_verify (EV_P) 2155ev_verify (EV_P)
1868{ 2156{
1869#if EV_VERIFY 2157#if EV_VERIFY
1870 int i; 2158 int i;
1871 WL w; 2159 WL w;
1872 2160
… …
1906#if EV_FORK_ENABLE 2194#if EV_FORK_ENABLE
1907 assert (forkmax >= forkcnt); 2195 assert (forkmax >= forkcnt);
1908 array_verify (EV_A_ (W *)forks, forkcnt); 2196 array_verify (EV_A_ (W *)forks, forkcnt);
1909#endif 2197#endif
1910 2198
2199#if EV_CLEANUP_ENABLE
2200 assert (cleanupmax >= cleanupcnt);
2201 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2202#endif
2203
1911#if EV_ASYNC_ENABLE 2204#if EV_ASYNC_ENABLE
1912 assert (asyncmax >= asynccnt); 2205 assert (asyncmax >= asynccnt);
1913 array_verify (EV_A_ (W *)asyncs, asynccnt); 2206 array_verify (EV_A_ (W *)asyncs, asynccnt);
1914#endif 2207#endif
1915 2208
2209#if EV_PREPARE_ENABLE
1916 assert (preparemax >= preparecnt); 2210 assert (preparemax >= preparecnt);
1917 array_verify (EV_A_ (W *)prepares, preparecnt); 2211 array_verify (EV_A_ (W *)prepares, preparecnt);
2212#endif
1918 2213
2214#if EV_CHECK_ENABLE
1919 assert (checkmax >= checkcnt); 2215 assert (checkmax >= checkcnt);
1920 array_verify (EV_A_ (W *)checks, checkcnt); 2216 array_verify (EV_A_ (W *)checks, checkcnt);
2217#endif
1921 2218
1922# if 0 2219# if 0
2220#if EV_CHILD_ENABLE
1923 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2221 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1924 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2222 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2223#endif
1925# endif 2224# endif
1926#endif 2225#endif
1927} 2226}
1928#endif 2227#endif
1929 2228
1930#if EV_MULTIPLICITY 2229#if EV_MULTIPLICITY
1931struct ev_loop * 2230struct ev_loop * ecb_cold
1932ev_default_loop_init (unsigned int flags)
1933#else 2231#else
1934int 2232int
2233#endif
1935ev_default_loop (unsigned int flags) 2234ev_default_loop (unsigned int flags)
1936#endif
1937{ 2235{
1938 if (!ev_default_loop_ptr) 2236 if (!ev_default_loop_ptr)
1939 { 2237 {
1940#if EV_MULTIPLICITY 2238#if EV_MULTIPLICITY
1941 EV_P = ev_default_loop_ptr = &default_loop_struct; 2239 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1945 2243
1946 loop_init (EV_A_ flags); 2244 loop_init (EV_A_ flags);
1947 2245
1948 if (ev_backend (EV_A)) 2246 if (ev_backend (EV_A))
1949 { 2247 {
1950#ifndef _WIN32 2248#if EV_CHILD_ENABLE
1951 ev_signal_init (&childev, childcb, SIGCHLD); 2249 ev_signal_init (&childev, childcb, SIGCHLD);
1952 ev_set_priority (&childev, EV_MAXPRI); 2250 ev_set_priority (&childev, EV_MAXPRI);
1953 ev_signal_start (EV_A_ &childev); 2251 ev_signal_start (EV_A_ &childev);
1954 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2252 ev_unref (EV_A); /* child watcher should not keep loop alive */
1955#endif 2253#endif
… …
1960 2258
1961 return ev_default_loop_ptr; 2259 return ev_default_loop_ptr;
1962} 2260}
1963 2261
1964void 2262void
1965ev_default_destroy (void) 2263ev_loop_fork (EV_P)
1966{ 2264{
1967#if EV_MULTIPLICITY
1968 EV_P = ev_default_loop_ptr;
1969#endif
1970
1971 ev_default_loop_ptr = 0;
1972
1973#ifndef _WIN32
1974 ev_ref (EV_A); /* child watcher */
1975 ev_signal_stop (EV_A_ &childev);
1976#endif
1977
1978 loop_destroy (EV_A);
1979}
1980
1981void
1982ev_default_fork (void)
1983{
1984#if EV_MULTIPLICITY
1985 EV_P = ev_default_loop_ptr;
1986#endif
1987
1988 postfork = 1; /* must be in line with ev_loop_fork */ 2265 postfork = 1; /* must be in line with ev_default_fork */
1989} 2266}
1990 2267
1991/*****************************************************************************/ 2268/*****************************************************************************/
1992 2269
1993void 2270void
… …
2015 2292
2016 for (pri = NUMPRI; pri--; ) 2293 for (pri = NUMPRI; pri--; )
2017 while (pendingcnt [pri]) 2294 while (pendingcnt [pri])
2018 { 2295 {
2019 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2296 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2020
2021 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2022 /* ^ this is no longer true, as pending_w could be here */
2023 2297
2024 p->w->pending = 0; 2298 p->w->pending = 0;
2025 EV_CB_INVOKE (p->w, p->events); 2299 EV_CB_INVOKE (p->w, p->events);
2026 EV_FREQUENT_CHECK; 2300 EV_FREQUENT_CHECK;
2027 } 2301 }
… …
2084 EV_FREQUENT_CHECK; 2358 EV_FREQUENT_CHECK;
2085 feed_reverse (EV_A_ (W)w); 2359 feed_reverse (EV_A_ (W)w);
2086 } 2360 }
2087 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2361 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2088 2362
2089 feed_reverse_done (EV_A_ EV_TIMEOUT); 2363 feed_reverse_done (EV_A_ EV_TIMER);
2090 } 2364 }
2091} 2365}
2092 2366
2093#if EV_PERIODIC_ENABLE 2367#if EV_PERIODIC_ENABLE
2368
2369static void noinline
2370periodic_recalc (EV_P_ ev_periodic *w)
2371{
2372 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2373 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2374
2375 /* the above almost always errs on the low side */
2376 while (at <= ev_rt_now)
2377 {
2378 ev_tstamp nat = at + w->interval;
2379
2380 /* when resolution fails us, we use ev_rt_now */
2381 if (expect_false (nat == at))
2382 {
2383 at = ev_rt_now;
2384 break;
2385 }
2386
2387 at = nat;
2388 }
2389
2390 ev_at (w) = at;
2391}
2392
2094/* make periodics pending */ 2393/* make periodics pending */
2095inline_size void 2394inline_size void
2096periodics_reify (EV_P) 2395periodics_reify (EV_P)
2097{ 2396{
2098 EV_FREQUENT_CHECK; 2397 EV_FREQUENT_CHECK;
… …
2117 ANHE_at_cache (periodics [HEAP0]); 2416 ANHE_at_cache (periodics [HEAP0]);
2118 downheap (periodics, periodiccnt, HEAP0); 2417 downheap (periodics, periodiccnt, HEAP0);
2119 } 2418 }
2120 else if (w->interval) 2419 else if (w->interval)
2121 { 2420 {
2122 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2421 periodic_recalc (EV_A_ w);
2123 /* if next trigger time is not sufficiently in the future, put it there */
2124 /* this might happen because of floating point inexactness */
2125 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2126 {
2127 ev_at (w) += w->interval;
2128
2129 /* if interval is unreasonably low we might still have a time in the past */
2130 /* so correct this. this will make the periodic very inexact, but the user */
2131 /* has effectively asked to get triggered more often than possible */
2132 if (ev_at (w) < ev_rt_now)
2133 ev_at (w) = ev_rt_now;
2134 }
2135
2136 ANHE_at_cache (periodics [HEAP0]); 2422 ANHE_at_cache (periodics [HEAP0]);
2137 downheap (periodics, periodiccnt, HEAP0); 2423 downheap (periodics, periodiccnt, HEAP0);
2138 } 2424 }
2139 else 2425 else
2140 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2426 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2147 feed_reverse_done (EV_A_ EV_PERIODIC); 2433 feed_reverse_done (EV_A_ EV_PERIODIC);
2148 } 2434 }
2149} 2435}
2150 2436
2151/* simply recalculate all periodics */ 2437/* simply recalculate all periodics */
2152/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2438/* TODO: maybe ensure that at least one event happens when jumping forward? */
2153static void noinline 2439static void noinline ecb_cold
2154periodics_reschedule (EV_P) 2440periodics_reschedule (EV_P)
2155{ 2441{
2156 int i; 2442 int i;
2157 2443
2158 /* adjust periodics after time jump */ 2444 /* adjust periodics after time jump */
… …
2161 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2447 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2162 2448
2163 if (w->reschedule_cb) 2449 if (w->reschedule_cb)
2164 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2450 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2165 else if (w->interval) 2451 else if (w->interval)
2166 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2452 periodic_recalc (EV_A_ w);
2167 2453
2168 ANHE_at_cache (periodics [i]); 2454 ANHE_at_cache (periodics [i]);
2169 } 2455 }
2170 2456
2171 reheap (periodics, periodiccnt); 2457 reheap (periodics, periodiccnt);
2172} 2458}
2173#endif 2459#endif
2174 2460
2175/* adjust all timers by a given offset */ 2461/* adjust all timers by a given offset */
2176static void noinline 2462static void noinline ecb_cold
2177timers_reschedule (EV_P_ ev_tstamp adjust) 2463timers_reschedule (EV_P_ ev_tstamp adjust)
2178{ 2464{
2179 int i; 2465 int i;
2180 2466
2181 for (i = 0; i < timercnt; ++i) 2467 for (i = 0; i < timercnt; ++i)
… …
2218 * doesn't hurt either as we only do this on time-jumps or 2504 * doesn't hurt either as we only do this on time-jumps or
2219 * in the unlikely event of having been preempted here. 2505 * in the unlikely event of having been preempted here.
2220 */ 2506 */
2221 for (i = 4; --i; ) 2507 for (i = 4; --i; )
2222 { 2508 {
2509 ev_tstamp diff;
2223 rtmn_diff = ev_rt_now - mn_now; 2510 rtmn_diff = ev_rt_now - mn_now;
2224 2511
2512 diff = odiff - rtmn_diff;
2513
2225 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2514 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2226 return; /* all is well */ 2515 return; /* all is well */
2227 2516
2228 ev_rt_now = ev_time (); 2517 ev_rt_now = ev_time ();
2229 mn_now = get_clock (); 2518 mn_now = get_clock ();
2230 now_floor = mn_now; 2519 now_floor = mn_now;
… …
2253 mn_now = ev_rt_now; 2542 mn_now = ev_rt_now;
2254 } 2543 }
2255} 2544}
2256 2545
2257void 2546void
2258ev_loop (EV_P_ int flags) 2547ev_run (EV_P_ int flags)
2259{ 2548{
2260#if EV_MINIMAL < 2 2549#if EV_FEATURE_API
2261 ++loop_depth; 2550 ++loop_depth;
2262#endif 2551#endif
2263 2552
2264 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2553 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2265 2554
2266 loop_done = EVUNLOOP_CANCEL; 2555 loop_done = EVBREAK_CANCEL;
2267 2556
2268 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2557 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2269 2558
2270 do 2559 do
2271 { 2560 {
2272#if EV_VERIFY >= 2 2561#if EV_VERIFY >= 2
2273 ev_loop_verify (EV_A); 2562 ev_verify (EV_A);
2274#endif 2563#endif
2275 2564
2276#ifndef _WIN32 2565#ifndef _WIN32
2277 if (expect_false (curpid)) /* penalise the forking check even more */ 2566 if (expect_false (curpid)) /* penalise the forking check even more */
2278 if (expect_false (getpid () != curpid)) 2567 if (expect_false (getpid () != curpid))
… …
2290 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2579 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2291 EV_INVOKE_PENDING; 2580 EV_INVOKE_PENDING;
2292 } 2581 }
2293#endif 2582#endif
2294 2583
2584#if EV_PREPARE_ENABLE
2295 /* queue prepare watchers (and execute them) */ 2585 /* queue prepare watchers (and execute them) */
2296 if (expect_false (preparecnt)) 2586 if (expect_false (preparecnt))
2297 { 2587 {
2298 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2588 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2299 EV_INVOKE_PENDING; 2589 EV_INVOKE_PENDING;
2300 } 2590 }
2591#endif
2301 2592
2302 if (expect_false (loop_done)) 2593 if (expect_false (loop_done))
2303 break; 2594 break;
2304 2595
2305 /* we might have forked, so reify kernel state if necessary */ 2596 /* we might have forked, so reify kernel state if necessary */
… …
2312 /* calculate blocking time */ 2603 /* calculate blocking time */
2313 { 2604 {
2314 ev_tstamp waittime = 0.; 2605 ev_tstamp waittime = 0.;
2315 ev_tstamp sleeptime = 0.; 2606 ev_tstamp sleeptime = 0.;
2316 2607
2608 /* remember old timestamp for io_blocktime calculation */
2609 ev_tstamp prev_mn_now = mn_now;
2610
2611 /* update time to cancel out callback processing overhead */
2612 time_update (EV_A_ 1e100);
2613
2614 /* from now on, we want a pipe-wake-up */
2615 pipe_write_wanted = 1;
2616
2617 ECB_MEMORY_FENCE; /* amke sure pipe_write_wanted is visible before we check for potential skips */
2618
2317 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2619 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2318 { 2620 {
2319 /* remember old timestamp for io_blocktime calculation */
2320 ev_tstamp prev_mn_now = mn_now;
2321
2322 /* update time to cancel out callback processing overhead */
2323 time_update (EV_A_ 1e100);
2324
2325 waittime = MAX_BLOCKTIME; 2621 waittime = MAX_BLOCKTIME;
2326 2622
2327 if (timercnt) 2623 if (timercnt)
2328 { 2624 {
2329 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2625 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2330 if (waittime > to) waittime = to; 2626 if (waittime > to) waittime = to;
2331 } 2627 }
2332 2628
2333#if EV_PERIODIC_ENABLE 2629#if EV_PERIODIC_ENABLE
2334 if (periodiccnt) 2630 if (periodiccnt)
2335 { 2631 {
2336 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2632 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2337 if (waittime > to) waittime = to; 2633 if (waittime > to) waittime = to;
2338 } 2634 }
2339#endif 2635#endif
2340 2636
2341 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2637 /* don't let timeouts decrease the waittime below timeout_blocktime */
2342 if (expect_false (waittime < timeout_blocktime)) 2638 if (expect_false (waittime < timeout_blocktime))
2343 waittime = timeout_blocktime; 2639 waittime = timeout_blocktime;
2640
2641 /* at this point, we NEED to wait, so we have to ensure */
2642 /* to pass a minimum nonzero value to the backend */
2643 if (expect_false (waittime < backend_mintime))
2644 waittime = backend_mintime;
2344 2645
2345 /* extra check because io_blocktime is commonly 0 */ 2646 /* extra check because io_blocktime is commonly 0 */
2346 if (expect_false (io_blocktime)) 2647 if (expect_false (io_blocktime))
2347 { 2648 {
2348 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2649 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2349 2650
2350 if (sleeptime > waittime - backend_fudge) 2651 if (sleeptime > waittime - backend_mintime)
2351 sleeptime = waittime - backend_fudge; 2652 sleeptime = waittime - backend_mintime;
2352 2653
2353 if (expect_true (sleeptime > 0.)) 2654 if (expect_true (sleeptime > 0.))
2354 { 2655 {
2355 ev_sleep (sleeptime); 2656 ev_sleep (sleeptime);
2356 waittime -= sleeptime; 2657 waittime -= sleeptime;
2357 } 2658 }
2358 } 2659 }
2359 } 2660 }
2360 2661
2361#if EV_MINIMAL < 2 2662#if EV_FEATURE_API
2362 ++loop_count; 2663 ++loop_count;
2363#endif 2664#endif
2364 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2665 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2365 backend_poll (EV_A_ waittime); 2666 backend_poll (EV_A_ waittime);
2366 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2667 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2668
2669 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2670
2671 if (pipe_write_skipped)
2672 {
2673 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2674 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2675 }
2676
2367 2677
2368 /* update ev_rt_now, do magic */ 2678 /* update ev_rt_now, do magic */
2369 time_update (EV_A_ waittime + sleeptime); 2679 time_update (EV_A_ waittime + sleeptime);
2370 } 2680 }
2371 2681
… …
2378#if EV_IDLE_ENABLE 2688#if EV_IDLE_ENABLE
2379 /* queue idle watchers unless other events are pending */ 2689 /* queue idle watchers unless other events are pending */
2380 idle_reify (EV_A); 2690 idle_reify (EV_A);
2381#endif 2691#endif
2382 2692
2693#if EV_CHECK_ENABLE
2383 /* queue check watchers, to be executed first */ 2694 /* queue check watchers, to be executed first */
2384 if (expect_false (checkcnt)) 2695 if (expect_false (checkcnt))
2385 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2696 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2697#endif
2386 2698
2387 EV_INVOKE_PENDING; 2699 EV_INVOKE_PENDING;
2388 } 2700 }
2389 while (expect_true ( 2701 while (expect_true (
2390 activecnt 2702 activecnt
2391 && !loop_done 2703 && !loop_done
2392 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2704 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2393 )); 2705 ));
2394 2706
2395 if (loop_done == EVUNLOOP_ONE) 2707 if (loop_done == EVBREAK_ONE)
2396 loop_done = EVUNLOOP_CANCEL; 2708 loop_done = EVBREAK_CANCEL;
2397 2709
2398#if EV_MINIMAL < 2 2710#if EV_FEATURE_API
2399 --loop_depth; 2711 --loop_depth;
2400#endif 2712#endif
2401} 2713}
2402 2714
2403void 2715void
2404ev_unloop (EV_P_ int how) 2716ev_break (EV_P_ int how)
2405{ 2717{
2406 loop_done = how; 2718 loop_done = how;
2407} 2719}
2408 2720
2409void 2721void
… …
2557 EV_FREQUENT_CHECK; 2869 EV_FREQUENT_CHECK;
2558 2870
2559 wlist_del (&anfds[w->fd].head, (WL)w); 2871 wlist_del (&anfds[w->fd].head, (WL)w);
2560 ev_stop (EV_A_ (W)w); 2872 ev_stop (EV_A_ (W)w);
2561 2873
2562 fd_change (EV_A_ w->fd, 1); 2874 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2563 2875
2564 EV_FREQUENT_CHECK; 2876 EV_FREQUENT_CHECK;
2565} 2877}
2566 2878
2567void noinline 2879void noinline
… …
2659 if (w->reschedule_cb) 2971 if (w->reschedule_cb)
2660 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2972 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2661 else if (w->interval) 2973 else if (w->interval)
2662 { 2974 {
2663 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2975 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2664 /* this formula differs from the one in periodic_reify because we do not always round up */ 2976 periodic_recalc (EV_A_ w);
2665 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2666 } 2977 }
2667 else 2978 else
2668 ev_at (w) = w->offset; 2979 ev_at (w) = w->offset;
2669 2980
2670 EV_FREQUENT_CHECK; 2981 EV_FREQUENT_CHECK;
… …
2719#endif 3030#endif
2720 3031
2721#ifndef SA_RESTART 3032#ifndef SA_RESTART
2722# define SA_RESTART 0 3033# define SA_RESTART 0
2723#endif 3034#endif
3035
3036#if EV_SIGNAL_ENABLE
2724 3037
2725void noinline 3038void noinline
2726ev_signal_start (EV_P_ ev_signal *w) 3039ev_signal_start (EV_P_ ev_signal *w)
2727{ 3040{
2728 if (expect_false (ev_is_active (w))) 3041 if (expect_false (ev_is_active (w)))
… …
2789 sa.sa_handler = ev_sighandler; 3102 sa.sa_handler = ev_sighandler;
2790 sigfillset (&sa.sa_mask); 3103 sigfillset (&sa.sa_mask);
2791 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3104 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2792 sigaction (w->signum, &sa, 0); 3105 sigaction (w->signum, &sa, 0);
2793 3106
3107 if (origflags & EVFLAG_NOSIGMASK)
3108 {
2794 sigemptyset (&sa.sa_mask); 3109 sigemptyset (&sa.sa_mask);
2795 sigaddset (&sa.sa_mask, w->signum); 3110 sigaddset (&sa.sa_mask, w->signum);
2796 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3111 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3112 }
2797#endif 3113#endif
2798 } 3114 }
2799 3115
2800 EV_FREQUENT_CHECK; 3116 EV_FREQUENT_CHECK;
2801} 3117}
… …
2835 } 3151 }
2836 3152
2837 EV_FREQUENT_CHECK; 3153 EV_FREQUENT_CHECK;
2838} 3154}
2839 3155
3156#endif
3157
3158#if EV_CHILD_ENABLE
3159
2840void 3160void
2841ev_child_start (EV_P_ ev_child *w) 3161ev_child_start (EV_P_ ev_child *w)
2842{ 3162{
2843#if EV_MULTIPLICITY 3163#if EV_MULTIPLICITY
2844 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3164 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2847 return; 3167 return;
2848 3168
2849 EV_FREQUENT_CHECK; 3169 EV_FREQUENT_CHECK;
2850 3170
2851 ev_start (EV_A_ (W)w, 1); 3171 ev_start (EV_A_ (W)w, 1);
2852 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3172 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2853 3173
2854 EV_FREQUENT_CHECK; 3174 EV_FREQUENT_CHECK;
2855} 3175}
2856 3176
2857void 3177void
… …
2861 if (expect_false (!ev_is_active (w))) 3181 if (expect_false (!ev_is_active (w)))
2862 return; 3182 return;
2863 3183
2864 EV_FREQUENT_CHECK; 3184 EV_FREQUENT_CHECK;
2865 3185
2866 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3186 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2867 ev_stop (EV_A_ (W)w); 3187 ev_stop (EV_A_ (W)w);
2868 3188
2869 EV_FREQUENT_CHECK; 3189 EV_FREQUENT_CHECK;
2870} 3190}
3191
3192#endif
2871 3193
2872#if EV_STAT_ENABLE 3194#if EV_STAT_ENABLE
2873 3195
2874# ifdef _WIN32 3196# ifdef _WIN32
2875# undef lstat 3197# undef lstat
… …
2936 if (!pend || pend == path) 3258 if (!pend || pend == path)
2937 break; 3259 break;
2938 3260
2939 *pend = 0; 3261 *pend = 0;
2940 w->wd = inotify_add_watch (fs_fd, path, mask); 3262 w->wd = inotify_add_watch (fs_fd, path, mask);
2941 } 3263 }
2942 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3264 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2943 } 3265 }
2944 } 3266 }
2945 3267
2946 if (w->wd >= 0) 3268 if (w->wd >= 0)
2947 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3269 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2948 3270
2949 /* now re-arm timer, if required */ 3271 /* now re-arm timer, if required */
2950 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3272 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2951 ev_timer_again (EV_A_ &w->timer); 3273 ev_timer_again (EV_A_ &w->timer);
2952 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3274 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2960 3282
2961 if (wd < 0) 3283 if (wd < 0)
2962 return; 3284 return;
2963 3285
2964 w->wd = -2; 3286 w->wd = -2;
2965 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3287 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2966 wlist_del (&fs_hash [slot].head, (WL)w); 3288 wlist_del (&fs_hash [slot].head, (WL)w);
2967 3289
2968 /* remove this watcher, if others are watching it, they will rearm */ 3290 /* remove this watcher, if others are watching it, they will rearm */
2969 inotify_rm_watch (fs_fd, wd); 3291 inotify_rm_watch (fs_fd, wd);
2970} 3292}
… …
2972static void noinline 3294static void noinline
2973infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3295infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2974{ 3296{
2975 if (slot < 0) 3297 if (slot < 0)
2976 /* overflow, need to check for all hash slots */ 3298 /* overflow, need to check for all hash slots */
2977 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3299 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2978 infy_wd (EV_A_ slot, wd, ev); 3300 infy_wd (EV_A_ slot, wd, ev);
2979 else 3301 else
2980 { 3302 {
2981 WL w_; 3303 WL w_;
2982 3304
2983 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3305 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2984 { 3306 {
2985 ev_stat *w = (ev_stat *)w_; 3307 ev_stat *w = (ev_stat *)w_;
2986 w_ = w_->next; /* lets us remove this watcher and all before it */ 3308 w_ = w_->next; /* lets us remove this watcher and all before it */
2987 3309
2988 if (w->wd == wd || wd == -1) 3310 if (w->wd == wd || wd == -1)
2989 { 3311 {
2990 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3312 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2991 { 3313 {
2992 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3314 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2993 w->wd = -1; 3315 w->wd = -1;
2994 infy_add (EV_A_ w); /* re-add, no matter what */ 3316 infy_add (EV_A_ w); /* re-add, no matter what */
2995 } 3317 }
2996 3318
2997 stat_timer_cb (EV_A_ &w->timer, 0); 3319 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3013 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3335 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3014 ofs += sizeof (struct inotify_event) + ev->len; 3336 ofs += sizeof (struct inotify_event) + ev->len;
3015 } 3337 }
3016} 3338}
3017 3339
3018inline_size unsigned int
3019ev_linux_version (void)
3020{
3021 struct utsname buf;
3022 unsigned int v;
3023 int i;
3024 char *p = buf.release;
3025
3026 if (uname (&buf))
3027 return 0;
3028
3029 for (i = 3+1; --i; )
3030 {
3031 unsigned int c = 0;
3032
3033 for (;;)
3034 {
3035 if (*p >= '0' && *p <= '9')
3036 c = c * 10 + *p++ - '0';
3037 else
3038 {
3039 p += *p == '.';
3040 break;
3041 }
3042 }
3043
3044 v = (v << 8) | c;
3045 }
3046
3047 return v;
3048}
3049
3050inline_size void 3340inline_size void ecb_cold
3051ev_check_2625 (EV_P) 3341ev_check_2625 (EV_P)
3052{ 3342{
3053 /* kernels < 2.6.25 are borked 3343 /* kernels < 2.6.25 are borked
3054 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3344 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3055 */ 3345 */
… …
3111 ev_io_set (&fs_w, fs_fd, EV_READ); 3401 ev_io_set (&fs_w, fs_fd, EV_READ);
3112 ev_io_start (EV_A_ &fs_w); 3402 ev_io_start (EV_A_ &fs_w);
3113 ev_unref (EV_A); 3403 ev_unref (EV_A);
3114 } 3404 }
3115 3405
3116 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3406 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3117 { 3407 {
3118 WL w_ = fs_hash [slot].head; 3408 WL w_ = fs_hash [slot].head;
3119 fs_hash [slot].head = 0; 3409 fs_hash [slot].head = 0;
3120 3410
3121 while (w_) 3411 while (w_)
… …
3296 3586
3297 EV_FREQUENT_CHECK; 3587 EV_FREQUENT_CHECK;
3298} 3588}
3299#endif 3589#endif
3300 3590
3591#if EV_PREPARE_ENABLE
3301void 3592void
3302ev_prepare_start (EV_P_ ev_prepare *w) 3593ev_prepare_start (EV_P_ ev_prepare *w)
3303{ 3594{
3304 if (expect_false (ev_is_active (w))) 3595 if (expect_false (ev_is_active (w)))
3305 return; 3596 return;
… …
3331 3622
3332 ev_stop (EV_A_ (W)w); 3623 ev_stop (EV_A_ (W)w);
3333 3624
3334 EV_FREQUENT_CHECK; 3625 EV_FREQUENT_CHECK;
3335} 3626}
3627#endif
3336 3628
3629#if EV_CHECK_ENABLE
3337void 3630void
3338ev_check_start (EV_P_ ev_check *w) 3631ev_check_start (EV_P_ ev_check *w)
3339{ 3632{
3340 if (expect_false (ev_is_active (w))) 3633 if (expect_false (ev_is_active (w)))
3341 return; 3634 return;
… …
3367 3660
3368 ev_stop (EV_A_ (W)w); 3661 ev_stop (EV_A_ (W)w);
3369 3662
3370 EV_FREQUENT_CHECK; 3663 EV_FREQUENT_CHECK;
3371} 3664}
3665#endif
3372 3666
3373#if EV_EMBED_ENABLE 3667#if EV_EMBED_ENABLE
3374void noinline 3668void noinline
3375ev_embed_sweep (EV_P_ ev_embed *w) 3669ev_embed_sweep (EV_P_ ev_embed *w)
3376{ 3670{
3377 ev_loop (w->other, EVLOOP_NONBLOCK); 3671 ev_run (w->other, EVRUN_NOWAIT);
3378} 3672}
3379 3673
3380static void 3674static void
3381embed_io_cb (EV_P_ ev_io *io, int revents) 3675embed_io_cb (EV_P_ ev_io *io, int revents)
3382{ 3676{
3383 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3677 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3384 3678
3385 if (ev_cb (w)) 3679 if (ev_cb (w))
3386 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3680 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3387 else 3681 else
3388 ev_loop (w->other, EVLOOP_NONBLOCK); 3682 ev_run (w->other, EVRUN_NOWAIT);
3389} 3683}
3390 3684
3391static void 3685static void
3392embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3686embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3393{ 3687{
… …
3397 EV_P = w->other; 3691 EV_P = w->other;
3398 3692
3399 while (fdchangecnt) 3693 while (fdchangecnt)
3400 { 3694 {
3401 fd_reify (EV_A); 3695 fd_reify (EV_A);
3402 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3696 ev_run (EV_A_ EVRUN_NOWAIT);
3403 } 3697 }
3404 } 3698 }
3405} 3699}
3406 3700
3407static void 3701static void
… …
3413 3707
3414 { 3708 {
3415 EV_P = w->other; 3709 EV_P = w->other;
3416 3710
3417 ev_loop_fork (EV_A); 3711 ev_loop_fork (EV_A);
3418 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3712 ev_run (EV_A_ EVRUN_NOWAIT);
3419 } 3713 }
3420 3714
3421 ev_embed_start (EV_A_ w); 3715 ev_embed_start (EV_A_ w);
3422} 3716}
3423 3717
… …
3515 3809
3516 EV_FREQUENT_CHECK; 3810 EV_FREQUENT_CHECK;
3517} 3811}
3518#endif 3812#endif
3519 3813
3814#if EV_CLEANUP_ENABLE
3815void
3816ev_cleanup_start (EV_P_ ev_cleanup *w)
3817{
3818 if (expect_false (ev_is_active (w)))
3819 return;
3820
3821 EV_FREQUENT_CHECK;
3822
3823 ev_start (EV_A_ (W)w, ++cleanupcnt);
3824 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3825 cleanups [cleanupcnt - 1] = w;
3826
3827 /* cleanup watchers should never keep a refcount on the loop */
3828 ev_unref (EV_A);
3829 EV_FREQUENT_CHECK;
3830}
3831
3832void
3833ev_cleanup_stop (EV_P_ ev_cleanup *w)
3834{
3835 clear_pending (EV_A_ (W)w);
3836 if (expect_false (!ev_is_active (w)))
3837 return;
3838
3839 EV_FREQUENT_CHECK;
3840 ev_ref (EV_A);
3841
3842 {
3843 int active = ev_active (w);
3844
3845 cleanups [active - 1] = cleanups [--cleanupcnt];
3846 ev_active (cleanups [active - 1]) = active;
3847 }
3848
3849 ev_stop (EV_A_ (W)w);
3850
3851 EV_FREQUENT_CHECK;
3852}
3853#endif
3854
3520#if EV_ASYNC_ENABLE 3855#if EV_ASYNC_ENABLE
3521void 3856void
3522ev_async_start (EV_P_ ev_async *w) 3857ev_async_start (EV_P_ ev_async *w)
3523{ 3858{
3524 if (expect_false (ev_is_active (w))) 3859 if (expect_false (ev_is_active (w)))
3525 return; 3860 return;
3861
3862 w->sent = 0;
3526 3863
3527 evpipe_init (EV_A); 3864 evpipe_init (EV_A);
3528 3865
3529 EV_FREQUENT_CHECK; 3866 EV_FREQUENT_CHECK;
3530 3867
… …
3608{ 3945{
3609 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3946 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3610 3947
3611 if (expect_false (!once)) 3948 if (expect_false (!once))
3612 { 3949 {
3613 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3950 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3614 return; 3951 return;
3615 } 3952 }
3616 3953
3617 once->cb = cb; 3954 once->cb = cb;
3618 once->arg = arg; 3955 once->arg = arg;
… …
3633} 3970}
3634 3971
3635/*****************************************************************************/ 3972/*****************************************************************************/
3636 3973
3637#if EV_WALK_ENABLE 3974#if EV_WALK_ENABLE
3638void 3975void ecb_cold
3639ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3976ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3640{ 3977{
3641 int i, j; 3978 int i, j;
3642 ev_watcher_list *wl, *wn; 3979 ev_watcher_list *wl, *wn;
3643 3980
… …
3705 if (types & EV_ASYNC) 4042 if (types & EV_ASYNC)
3706 for (i = asynccnt; i--; ) 4043 for (i = asynccnt; i--; )
3707 cb (EV_A_ EV_ASYNC, asyncs [i]); 4044 cb (EV_A_ EV_ASYNC, asyncs [i]);
3708#endif 4045#endif
3709 4046
4047#if EV_PREPARE_ENABLE
3710 if (types & EV_PREPARE) 4048 if (types & EV_PREPARE)
3711 for (i = preparecnt; i--; ) 4049 for (i = preparecnt; i--; )
3712#if EV_EMBED_ENABLE 4050# if EV_EMBED_ENABLE
3713 if (ev_cb (prepares [i]) != embed_prepare_cb) 4051 if (ev_cb (prepares [i]) != embed_prepare_cb)
3714#endif 4052# endif
3715 cb (EV_A_ EV_PREPARE, prepares [i]); 4053 cb (EV_A_ EV_PREPARE, prepares [i]);
4054#endif
3716 4055
4056#if EV_CHECK_ENABLE
3717 if (types & EV_CHECK) 4057 if (types & EV_CHECK)
3718 for (i = checkcnt; i--; ) 4058 for (i = checkcnt; i--; )
3719 cb (EV_A_ EV_CHECK, checks [i]); 4059 cb (EV_A_ EV_CHECK, checks [i]);
4060#endif
3720 4061
4062#if EV_SIGNAL_ENABLE
3721 if (types & EV_SIGNAL) 4063 if (types & EV_SIGNAL)
3722 for (i = 0; i < EV_NSIG - 1; ++i) 4064 for (i = 0; i < EV_NSIG - 1; ++i)
3723 for (wl = signals [i].head; wl; ) 4065 for (wl = signals [i].head; wl; )
3724 { 4066 {
3725 wn = wl->next; 4067 wn = wl->next;
3726 cb (EV_A_ EV_SIGNAL, wl); 4068 cb (EV_A_ EV_SIGNAL, wl);
3727 wl = wn; 4069 wl = wn;
3728 } 4070 }
4071#endif
3729 4072
4073#if EV_CHILD_ENABLE
3730 if (types & EV_CHILD) 4074 if (types & EV_CHILD)
3731 for (i = EV_PID_HASHSIZE; i--; ) 4075 for (i = (EV_PID_HASHSIZE); i--; )
3732 for (wl = childs [i]; wl; ) 4076 for (wl = childs [i]; wl; )
3733 { 4077 {
3734 wn = wl->next; 4078 wn = wl->next;
3735 cb (EV_A_ EV_CHILD, wl); 4079 cb (EV_A_ EV_CHILD, wl);
3736 wl = wn; 4080 wl = wn;
3737 } 4081 }
4082#endif
3738/* EV_STAT 0x00001000 /* stat data changed */ 4083/* EV_STAT 0x00001000 /* stat data changed */
3739/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4084/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3740} 4085}
3741#endif 4086#endif
3742 4087
3743#if EV_MULTIPLICITY 4088#if EV_MULTIPLICITY
3744 #include "ev_wrap.h" 4089 #include "ev_wrap.h"
3745#endif 4090#endif
3746 4091
3747#ifdef __cplusplus 4092EV_CPP(})
3748}
3749#endif
3750 4093

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines