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Comparing libev/ev.c (file contents):
Revision 1.335 by root, Tue Mar 9 09:02:03 2010 UTC vs.
Revision 1.389 by root, Wed Aug 3 15:31:23 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# include "ev.h" 185# include "ev.h"
176#endif 186#endif
187
188EV_CPP(extern "C" {)
177 189
178#ifndef _WIN32 190#ifndef _WIN32
179# include <sys/time.h> 191# include <sys/time.h>
180# include <sys/wait.h> 192# include <sys/wait.h>
181# include <unistd.h> 193# include <unistd.h>
… …
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 _MSC_VER >= 1400 /* VC++ 2005 */
517 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
518 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
519 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
520 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
521 #elif defined(_WIN32)
522 #include <WinNT.h>
523 #define ECB_MEMORY_FENCE MemoryBarrier ()
524 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
525 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
526 #endif
527#endif
528
529#ifndef ECB_MEMORY_FENCE
530 #include <pthread.h>
531
532 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
533 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
534 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
535 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
536#endif
537
538#if ECB_GCC_VERSION(3,1)
539 #define ecb_attribute(attrlist) __attribute__(attrlist)
540 #define ecb_is_constant(expr) __builtin_constant_p (expr)
541 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
542 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
543#else
544 #define ecb_attribute(attrlist)
545 #define ecb_is_constant(expr) 0
546 #define ecb_expect(expr,value) (expr)
547 #define ecb_prefetch(addr,rw,locality)
548#endif
549
550#define ecb_noinline ecb_attribute ((__noinline__))
551#define ecb_noreturn ecb_attribute ((__noreturn__))
552#define ecb_unused ecb_attribute ((__unused__))
553#define ecb_const ecb_attribute ((__const__))
554#define ecb_pure ecb_attribute ((__pure__))
555
556#if ECB_GCC_VERSION(4,3)
557 #define ecb_artificial ecb_attribute ((__artificial__))
558 #define ecb_hot ecb_attribute ((__hot__))
559 #define ecb_cold ecb_attribute ((__cold__))
560#else
561 #define ecb_artificial
562 #define ecb_hot
563 #define ecb_cold
564#endif
565
566/* put around conditional expressions if you are very sure that the */
567/* expression is mostly true or mostly false. note that these return */
568/* booleans, not the expression. */
476#define expect_false(expr) expect ((expr) != 0, 0) 569#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 570#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
571/* ecb.h end */
572
573#define expect_false(cond) ecb_expect_false (cond)
574#define expect_true(cond) ecb_expect_true (cond)
575#define noinline ecb_noinline
576
478#define inline_size static inline 577#define inline_size ecb_inline
479 578
480#if EV_MINIMAL 579#if EV_FEATURE_CODE
580# define inline_speed ecb_inline
581#else
481# define inline_speed static noinline 582# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 583#endif
485 584
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 585#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 586
488#if EV_MINPRI == EV_MAXPRI 587#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 600#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 601#define ev_at(w) ((WT)(w))->at
503 602
504#if EV_USE_REALTIME 603#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 604/* sig_atomic_t is used to avoid per-thread variables or locking but still */
506/* giving it a reasonably high chance of working on typical architetcures */ 605/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 606static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 607#endif
509 608
510#if EV_USE_MONOTONIC 609#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 610static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 624# include "ev_win32.c"
526#endif 625#endif
527 626
528/*****************************************************************************/ 627/*****************************************************************************/
529 628
629/* define a suitable floor function (only used by periodics atm) */
630
631#if EV_USE_FLOOR
632# include <math.h>
633# define ev_floor(v) floor (v)
634#else
635
636#include <float.h>
637
638/* a floor() replacement function, should be independent of ev_tstamp type */
639static ev_tstamp noinline
640ev_floor (ev_tstamp v)
641{
642 /* the choice of shift factor is not terribly important */
643#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
644 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
645#else
646 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
647#endif
648
649 /* argument too large for an unsigned long? */
650 if (expect_false (v >= shift))
651 {
652 ev_tstamp f;
653
654 if (v == v - 1.)
655 return v; /* very large number */
656
657 f = shift * ev_floor (v * (1. / shift));
658 return f + ev_floor (v - f);
659 }
660
661 /* special treatment for negative args? */
662 if (expect_false (v < 0.))
663 {
664 ev_tstamp f = -ev_floor (-v);
665
666 return f - (f == v ? 0 : 1);
667 }
668
669 /* fits into an unsigned long */
670 return (unsigned long)v;
671}
672
673#endif
674
675/*****************************************************************************/
676
677#ifdef __linux
678# include <sys/utsname.h>
679#endif
680
681static unsigned int noinline ecb_cold
682ev_linux_version (void)
683{
684#ifdef __linux
685 unsigned int v = 0;
686 struct utsname buf;
687 int i;
688 char *p = buf.release;
689
690 if (uname (&buf))
691 return 0;
692
693 for (i = 3+1; --i; )
694 {
695 unsigned int c = 0;
696
697 for (;;)
698 {
699 if (*p >= '0' && *p <= '9')
700 c = c * 10 + *p++ - '0';
701 else
702 {
703 p += *p == '.';
704 break;
705 }
706 }
707
708 v = (v << 8) | c;
709 }
710
711 return v;
712#else
713 return 0;
714#endif
715}
716
717/*****************************************************************************/
718
530#if EV_AVOID_STDIO 719#if EV_AVOID_STDIO
531static void noinline 720static void noinline ecb_cold
532ev_printerr (const char *msg) 721ev_printerr (const char *msg)
533{ 722{
534 write (STDERR_FILENO, msg, strlen (msg)); 723 write (STDERR_FILENO, msg, strlen (msg));
535} 724}
536#endif 725#endif
537 726
538static void (*syserr_cb)(const char *msg); 727static void (*syserr_cb)(const char *msg);
539 728
540void 729void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 730ev_set_syserr_cb (void (*cb)(const char *msg))
542{ 731{
543 syserr_cb = cb; 732 syserr_cb = cb;
544} 733}
545 734
546static void noinline 735static void noinline ecb_cold
547ev_syserr (const char *msg) 736ev_syserr (const char *msg)
548{ 737{
549 if (!msg) 738 if (!msg)
550 msg = "(libev) system error"; 739 msg = "(libev) system error";
551 740
552 if (syserr_cb) 741 if (syserr_cb)
553 syserr_cb (msg); 742 syserr_cb (msg);
554 else 743 else
555 { 744 {
556#if EV_AVOID_STDIO 745#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 746 ev_printerr (msg);
560 ev_printerr (": "); 747 ev_printerr (": ");
561 ev_printerr (err); 748 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 749 ev_printerr ("\n");
563#else 750#else
564 perror (msg); 751 perror (msg);
565#endif 752#endif
566 abort (); 753 abort ();
… …
586#endif 773#endif
587} 774}
588 775
589static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 776static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
590 777
591void 778void ecb_cold
592ev_set_allocator (void *(*cb)(void *ptr, long size)) 779ev_set_allocator (void *(*cb)(void *ptr, long size))
593{ 780{
594 alloc = cb; 781 alloc = cb;
595} 782}
596 783
… …
600 ptr = alloc (ptr, size); 787 ptr = alloc (ptr, size);
601 788
602 if (!ptr && size) 789 if (!ptr && size)
603 { 790 {
604#if EV_AVOID_STDIO 791#if EV_AVOID_STDIO
605 ev_printerr ("libev: memory allocation failed, aborting.\n"); 792 ev_printerr ("(libev) memory allocation failed, aborting.\n");
606#else 793#else
607 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 794 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
608#endif 795#endif
609 abort (); 796 abort ();
610 } 797 }
611 798
612 return ptr; 799 return ptr;
… …
629 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 816 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
630 unsigned char unused; 817 unsigned char unused;
631#if EV_USE_EPOLL 818#if EV_USE_EPOLL
632 unsigned int egen; /* generation counter to counter epoll bugs */ 819 unsigned int egen; /* generation counter to counter epoll bugs */
633#endif 820#endif
634#if EV_SELECT_IS_WINSOCKET 821#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
635 SOCKET handle; 822 SOCKET handle;
823#endif
824#if EV_USE_IOCP
825 OVERLAPPED or, ow;
636#endif 826#endif
637} ANFD; 827} ANFD;
638 828
639/* stores the pending event set for a given watcher */ 829/* stores the pending event set for a given watcher */
640typedef struct 830typedef struct
… …
695 885
696 static int ev_default_loop_ptr; 886 static int ev_default_loop_ptr;
697 887
698#endif 888#endif
699 889
700#if EV_MINIMAL < 2 890#if EV_FEATURE_API
701# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 891# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
702# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 892# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
703# define EV_INVOKE_PENDING invoke_cb (EV_A) 893# define EV_INVOKE_PENDING invoke_cb (EV_A)
704#else 894#else
705# define EV_RELEASE_CB (void)0 895# define EV_RELEASE_CB (void)0
706# define EV_ACQUIRE_CB (void)0 896# define EV_ACQUIRE_CB (void)0
707# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 897# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
708#endif 898#endif
709 899
710#define EVUNLOOP_RECURSE 0x80 900#define EVBREAK_RECURSE 0x80
711 901
712/*****************************************************************************/ 902/*****************************************************************************/
713 903
714#ifndef EV_HAVE_EV_TIME 904#ifndef EV_HAVE_EV_TIME
715ev_tstamp 905ev_tstamp
… …
759 if (delay > 0.) 949 if (delay > 0.)
760 { 950 {
761#if EV_USE_NANOSLEEP 951#if EV_USE_NANOSLEEP
762 struct timespec ts; 952 struct timespec ts;
763 953
764 ts.tv_sec = (time_t)delay; 954 EV_TS_SET (ts, delay);
765 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
766
767 nanosleep (&ts, 0); 955 nanosleep (&ts, 0);
768#elif defined(_WIN32) 956#elif defined(_WIN32)
769 Sleep ((unsigned long)(delay * 1e3)); 957 Sleep ((unsigned long)(delay * 1e3));
770#else 958#else
771 struct timeval tv; 959 struct timeval tv;
772 960
773 tv.tv_sec = (time_t)delay;
774 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
775
776 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 961 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
777 /* something not guaranteed by newer posix versions, but guaranteed */ 962 /* something not guaranteed by newer posix versions, but guaranteed */
778 /* by older ones */ 963 /* by older ones */
964 EV_TV_SET (tv, delay);
779 select (0, 0, 0, 0, &tv); 965 select (0, 0, 0, 0, &tv);
780#endif 966#endif
781 } 967 }
782} 968}
783 969
784/*****************************************************************************/ 970/*****************************************************************************/
785 971
786#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 972#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
787 973
788/* find a suitable new size for the given array, */ 974/* find a suitable new size for the given array, */
789/* hopefully by rounding to a ncie-to-malloc size */ 975/* hopefully by rounding to a nice-to-malloc size */
790inline_size int 976inline_size int
791array_nextsize (int elem, int cur, int cnt) 977array_nextsize (int elem, int cur, int cnt)
792{ 978{
793 int ncur = cur + 1; 979 int ncur = cur + 1;
794 980
… …
806 } 992 }
807 993
808 return ncur; 994 return ncur;
809} 995}
810 996
811static noinline void * 997static void * noinline ecb_cold
812array_realloc (int elem, void *base, int *cur, int cnt) 998array_realloc (int elem, void *base, int *cur, int cnt)
813{ 999{
814 *cur = array_nextsize (elem, *cur, cnt); 1000 *cur = array_nextsize (elem, *cur, cnt);
815 return ev_realloc (base, elem * *cur); 1001 return ev_realloc (base, elem * *cur);
816} 1002}
… …
819 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1005 memset ((void *)(base), 0, sizeof (*(base)) * (count))
820 1006
821#define array_needsize(type,base,cur,cnt,init) \ 1007#define array_needsize(type,base,cur,cnt,init) \
822 if (expect_false ((cnt) > (cur))) \ 1008 if (expect_false ((cnt) > (cur))) \
823 { \ 1009 { \
824 int ocur_ = (cur); \ 1010 int ecb_unused ocur_ = (cur); \
825 (base) = (type *)array_realloc \ 1011 (base) = (type *)array_realloc \
826 (sizeof (type), (base), &(cur), (cnt)); \ 1012 (sizeof (type), (base), &(cur), (cnt)); \
827 init ((base) + (ocur_), (cur) - ocur_); \ 1013 init ((base) + (ocur_), (cur) - ocur_); \
828 } 1014 }
829 1015
… …
890} 1076}
891 1077
892/*****************************************************************************/ 1078/*****************************************************************************/
893 1079
894inline_speed void 1080inline_speed void
895fd_event_nc (EV_P_ int fd, int revents) 1081fd_event_nocheck (EV_P_ int fd, int revents)
896{ 1082{
897 ANFD *anfd = anfds + fd; 1083 ANFD *anfd = anfds + fd;
898 ev_io *w; 1084 ev_io *w;
899 1085
900 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1086 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
912fd_event (EV_P_ int fd, int revents) 1098fd_event (EV_P_ int fd, int revents)
913{ 1099{
914 ANFD *anfd = anfds + fd; 1100 ANFD *anfd = anfds + fd;
915 1101
916 if (expect_true (!anfd->reify)) 1102 if (expect_true (!anfd->reify))
917 fd_event_nc (EV_A_ fd, revents); 1103 fd_event_nocheck (EV_A_ fd, revents);
918} 1104}
919 1105
920void 1106void
921ev_feed_fd_event (EV_P_ int fd, int revents) 1107ev_feed_fd_event (EV_P_ int fd, int revents)
922{ 1108{
923 if (fd >= 0 && fd < anfdmax) 1109 if (fd >= 0 && fd < anfdmax)
924 fd_event_nc (EV_A_ fd, revents); 1110 fd_event_nocheck (EV_A_ fd, revents);
925} 1111}
926 1112
927/* make sure the external fd watch events are in-sync */ 1113/* make sure the external fd watch events are in-sync */
928/* with the kernel/libev internal state */ 1114/* with the kernel/libev internal state */
929inline_size void 1115inline_size void
930fd_reify (EV_P) 1116fd_reify (EV_P)
931{ 1117{
932 int i; 1118 int i;
933 1119
1120#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1121 for (i = 0; i < fdchangecnt; ++i)
1122 {
1123 int fd = fdchanges [i];
1124 ANFD *anfd = anfds + fd;
1125
1126 if (anfd->reify & EV__IOFDSET && anfd->head)
1127 {
1128 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1129
1130 if (handle != anfd->handle)
1131 {
1132 unsigned long arg;
1133
1134 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1135
1136 /* handle changed, but fd didn't - we need to do it in two steps */
1137 backend_modify (EV_A_ fd, anfd->events, 0);
1138 anfd->events = 0;
1139 anfd->handle = handle;
1140 }
1141 }
1142 }
1143#endif
1144
934 for (i = 0; i < fdchangecnt; ++i) 1145 for (i = 0; i < fdchangecnt; ++i)
935 { 1146 {
936 int fd = fdchanges [i]; 1147 int fd = fdchanges [i];
937 ANFD *anfd = anfds + fd; 1148 ANFD *anfd = anfds + fd;
938 ev_io *w; 1149 ev_io *w;
939 1150
940 unsigned char events = 0; 1151 unsigned char o_events = anfd->events;
1152 unsigned char o_reify = anfd->reify;
941 1153
942 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1154 anfd->reify = 0;
943 events |= (unsigned char)w->events;
944 1155
945#if EV_SELECT_IS_WINSOCKET 1156 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
946 if (events)
947 { 1157 {
948 unsigned long arg; 1158 anfd->events = 0;
949 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1159
950 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1160 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1161 anfd->events |= (unsigned char)w->events;
1162
1163 if (o_events != anfd->events)
1164 o_reify = EV__IOFDSET; /* actually |= */
951 } 1165 }
952#endif
953 1166
954 { 1167 if (o_reify & EV__IOFDSET)
955 unsigned char o_events = anfd->events;
956 unsigned char o_reify = anfd->reify;
957
958 anfd->reify = 0;
959 anfd->events = events;
960
961 if (o_events != events || o_reify & EV__IOFDSET)
962 backend_modify (EV_A_ fd, o_events, events); 1168 backend_modify (EV_A_ fd, o_events, anfd->events);
963 }
964 } 1169 }
965 1170
966 fdchangecnt = 0; 1171 fdchangecnt = 0;
967} 1172}
968 1173
… …
980 fdchanges [fdchangecnt - 1] = fd; 1185 fdchanges [fdchangecnt - 1] = fd;
981 } 1186 }
982} 1187}
983 1188
984/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1189/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
985inline_speed void 1190inline_speed void ecb_cold
986fd_kill (EV_P_ int fd) 1191fd_kill (EV_P_ int fd)
987{ 1192{
988 ev_io *w; 1193 ev_io *w;
989 1194
990 while ((w = (ev_io *)anfds [fd].head)) 1195 while ((w = (ev_io *)anfds [fd].head))
… …
992 ev_io_stop (EV_A_ w); 1197 ev_io_stop (EV_A_ w);
993 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1198 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
994 } 1199 }
995} 1200}
996 1201
997/* check whether the given fd is atcually valid, for error recovery */ 1202/* check whether the given fd is actually valid, for error recovery */
998inline_size int 1203inline_size int ecb_cold
999fd_valid (int fd) 1204fd_valid (int fd)
1000{ 1205{
1001#ifdef _WIN32 1206#ifdef _WIN32
1002 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1207 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1003#else 1208#else
1004 return fcntl (fd, F_GETFD) != -1; 1209 return fcntl (fd, F_GETFD) != -1;
1005#endif 1210#endif
1006} 1211}
1007 1212
1008/* called on EBADF to verify fds */ 1213/* called on EBADF to verify fds */
1009static void noinline 1214static void noinline ecb_cold
1010fd_ebadf (EV_P) 1215fd_ebadf (EV_P)
1011{ 1216{
1012 int fd; 1217 int fd;
1013 1218
1014 for (fd = 0; fd < anfdmax; ++fd) 1219 for (fd = 0; fd < anfdmax; ++fd)
… …
1016 if (!fd_valid (fd) && errno == EBADF) 1221 if (!fd_valid (fd) && errno == EBADF)
1017 fd_kill (EV_A_ fd); 1222 fd_kill (EV_A_ fd);
1018} 1223}
1019 1224
1020/* called on ENOMEM in select/poll to kill some fds and retry */ 1225/* called on ENOMEM in select/poll to kill some fds and retry */
1021static void noinline 1226static void noinline ecb_cold
1022fd_enomem (EV_P) 1227fd_enomem (EV_P)
1023{ 1228{
1024 int fd; 1229 int fd;
1025 1230
1026 for (fd = anfdmax; fd--; ) 1231 for (fd = anfdmax; fd--; )
… …
1044 anfds [fd].emask = 0; 1249 anfds [fd].emask = 0;
1045 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1250 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1046 } 1251 }
1047} 1252}
1048 1253
1254/* used to prepare libev internal fd's */
1255/* this is not fork-safe */
1256inline_speed void
1257fd_intern (int fd)
1258{
1259#ifdef _WIN32
1260 unsigned long arg = 1;
1261 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1262#else
1263 fcntl (fd, F_SETFD, FD_CLOEXEC);
1264 fcntl (fd, F_SETFL, O_NONBLOCK);
1265#endif
1266}
1267
1049/*****************************************************************************/ 1268/*****************************************************************************/
1050 1269
1051/* 1270/*
1052 * the heap functions want a real array index. array index 0 uis guaranteed to not 1271 * the heap functions want a real array index. array index 0 is guaranteed to not
1053 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1272 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1054 * the branching factor of the d-tree. 1273 * the branching factor of the d-tree.
1055 */ 1274 */
1056 1275
1057/* 1276/*
… …
1205 1424
1206static ANSIG signals [EV_NSIG - 1]; 1425static ANSIG signals [EV_NSIG - 1];
1207 1426
1208/*****************************************************************************/ 1427/*****************************************************************************/
1209 1428
1210/* used to prepare libev internal fd's */ 1429#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1211/* this is not fork-safe */
1212inline_speed void
1213fd_intern (int fd)
1214{
1215#ifdef _WIN32
1216 unsigned long arg = 1;
1217 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1218#else
1219 fcntl (fd, F_SETFD, FD_CLOEXEC);
1220 fcntl (fd, F_SETFL, O_NONBLOCK);
1221#endif
1222}
1223 1430
1224static void noinline 1431static void noinline ecb_cold
1225evpipe_init (EV_P) 1432evpipe_init (EV_P)
1226{ 1433{
1227 if (!ev_is_active (&pipe_w)) 1434 if (!ev_is_active (&pipe_w))
1228 { 1435 {
1229#if EV_USE_EVENTFD 1436# if EV_USE_EVENTFD
1230 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1437 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1231 if (evfd < 0 && errno == EINVAL) 1438 if (evfd < 0 && errno == EINVAL)
1232 evfd = eventfd (0, 0); 1439 evfd = eventfd (0, 0);
1233 1440
1234 if (evfd >= 0) 1441 if (evfd >= 0)
… …
1236 evpipe [0] = -1; 1443 evpipe [0] = -1;
1237 fd_intern (evfd); /* doing it twice doesn't hurt */ 1444 fd_intern (evfd); /* doing it twice doesn't hurt */
1238 ev_io_set (&pipe_w, evfd, EV_READ); 1445 ev_io_set (&pipe_w, evfd, EV_READ);
1239 } 1446 }
1240 else 1447 else
1241#endif 1448# endif
1242 { 1449 {
1243 while (pipe (evpipe)) 1450 while (pipe (evpipe))
1244 ev_syserr ("(libev) error creating signal/async pipe"); 1451 ev_syserr ("(libev) error creating signal/async pipe");
1245 1452
1246 fd_intern (evpipe [0]); 1453 fd_intern (evpipe [0]);
… …
1251 ev_io_start (EV_A_ &pipe_w); 1458 ev_io_start (EV_A_ &pipe_w);
1252 ev_unref (EV_A); /* watcher should not keep loop alive */ 1459 ev_unref (EV_A); /* watcher should not keep loop alive */
1253 } 1460 }
1254} 1461}
1255 1462
1256inline_size void 1463inline_speed void
1257evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1464evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1258{ 1465{
1259 if (!*flag) 1466 if (expect_true (*flag))
1467 return;
1468
1469 *flag = 1;
1470
1471 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1472
1473 pipe_write_skipped = 1;
1474
1475 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1476
1477 if (pipe_write_wanted)
1260 { 1478 {
1479 int old_errno;
1480
1481 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1482
1261 int old_errno = errno; /* save errno because write might clobber it */ 1483 old_errno = errno; /* save errno because write will clobber it */
1262
1263 *flag = 1;
1264 1484
1265#if EV_USE_EVENTFD 1485#if EV_USE_EVENTFD
1266 if (evfd >= 0) 1486 if (evfd >= 0)
1267 { 1487 {
1268 uint64_t counter = 1; 1488 uint64_t counter = 1;
1269 write (evfd, &counter, sizeof (uint64_t)); 1489 write (evfd, &counter, sizeof (uint64_t));
1270 } 1490 }
1271 else 1491 else
1272#endif 1492#endif
1493 {
1494 /* win32 people keep sending patches that change this write() to send() */
1495 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1496 /* so when you think this write should be a send instead, please find out */
1497 /* where your send() is from - it's definitely not the microsoft send, and */
1498 /* tell me. thank you. */
1273 write (evpipe [1], &old_errno, 1); 1499 write (evpipe [1], &(evpipe [1]), 1);
1500 }
1274 1501
1275 errno = old_errno; 1502 errno = old_errno;
1276 } 1503 }
1277} 1504}
1278 1505
… …
1281static void 1508static void
1282pipecb (EV_P_ ev_io *iow, int revents) 1509pipecb (EV_P_ ev_io *iow, int revents)
1283{ 1510{
1284 int i; 1511 int i;
1285 1512
1513 if (revents & EV_READ)
1514 {
1286#if EV_USE_EVENTFD 1515#if EV_USE_EVENTFD
1287 if (evfd >= 0) 1516 if (evfd >= 0)
1288 { 1517 {
1289 uint64_t counter; 1518 uint64_t counter;
1290 read (evfd, &counter, sizeof (uint64_t)); 1519 read (evfd, &counter, sizeof (uint64_t));
1291 } 1520 }
1292 else 1521 else
1293#endif 1522#endif
1294 { 1523 {
1295 char dummy; 1524 char dummy;
1525 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1296 read (evpipe [0], &dummy, 1); 1526 read (evpipe [0], &dummy, 1);
1527 }
1297 } 1528 }
1298 1529
1530 pipe_write_skipped = 0;
1531
1532#if EV_SIGNAL_ENABLE
1299 if (sig_pending) 1533 if (sig_pending)
1300 { 1534 {
1301 sig_pending = 0; 1535 sig_pending = 0;
1302 1536
1303 for (i = EV_NSIG - 1; i--; ) 1537 for (i = EV_NSIG - 1; i--; )
1304 if (expect_false (signals [i].pending)) 1538 if (expect_false (signals [i].pending))
1305 ev_feed_signal_event (EV_A_ i + 1); 1539 ev_feed_signal_event (EV_A_ i + 1);
1306 } 1540 }
1541#endif
1307 1542
1308#if EV_ASYNC_ENABLE 1543#if EV_ASYNC_ENABLE
1309 if (async_pending) 1544 if (async_pending)
1310 { 1545 {
1311 async_pending = 0; 1546 async_pending = 0;
… …
1320#endif 1555#endif
1321} 1556}
1322 1557
1323/*****************************************************************************/ 1558/*****************************************************************************/
1324 1559
1560void
1561ev_feed_signal (int signum)
1562{
1563#if EV_MULTIPLICITY
1564 EV_P = signals [signum - 1].loop;
1565
1566 if (!EV_A)
1567 return;
1568#endif
1569
1570 if (!ev_active (&pipe_w))
1571 return;
1572
1573 signals [signum - 1].pending = 1;
1574 evpipe_write (EV_A_ &sig_pending);
1575}
1576
1325static void 1577static void
1326ev_sighandler (int signum) 1578ev_sighandler (int signum)
1327{ 1579{
1328#if EV_MULTIPLICITY
1329 EV_P = signals [signum - 1].loop;
1330#endif
1331
1332#ifdef _WIN32 1580#ifdef _WIN32
1333 signal (signum, ev_sighandler); 1581 signal (signum, ev_sighandler);
1334#endif 1582#endif
1335 1583
1336 signals [signum - 1].pending = 1; 1584 ev_feed_signal (signum);
1337 evpipe_write (EV_A_ &sig_pending);
1338} 1585}
1339 1586
1340void noinline 1587void noinline
1341ev_feed_signal_event (EV_P_ int signum) 1588ev_feed_signal_event (EV_P_ int signum)
1342{ 1589{
… …
1379 break; 1626 break;
1380 } 1627 }
1381} 1628}
1382#endif 1629#endif
1383 1630
1631#endif
1632
1384/*****************************************************************************/ 1633/*****************************************************************************/
1385 1634
1635#if EV_CHILD_ENABLE
1386static WL childs [EV_PID_HASHSIZE]; 1636static WL childs [EV_PID_HASHSIZE];
1387
1388#ifndef _WIN32
1389 1637
1390static ev_signal childev; 1638static ev_signal childev;
1391 1639
1392#ifndef WIFCONTINUED 1640#ifndef WIFCONTINUED
1393# define WIFCONTINUED(status) 0 1641# define WIFCONTINUED(status) 0
… …
1398child_reap (EV_P_ int chain, int pid, int status) 1646child_reap (EV_P_ int chain, int pid, int status)
1399{ 1647{
1400 ev_child *w; 1648 ev_child *w;
1401 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1649 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1402 1650
1403 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1651 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1404 { 1652 {
1405 if ((w->pid == pid || !w->pid) 1653 if ((w->pid == pid || !w->pid)
1406 && (!traced || (w->flags & 1))) 1654 && (!traced || (w->flags & 1)))
1407 { 1655 {
1408 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1656 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1433 /* make sure we are called again until all children have been reaped */ 1681 /* make sure we are called again until all children have been reaped */
1434 /* we need to do it this way so that the callback gets called before we continue */ 1682 /* we need to do it this way so that the callback gets called before we continue */
1435 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1683 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1436 1684
1437 child_reap (EV_A_ pid, pid, status); 1685 child_reap (EV_A_ pid, pid, status);
1438 if (EV_PID_HASHSIZE > 1) 1686 if ((EV_PID_HASHSIZE) > 1)
1439 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1687 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1440} 1688}
1441 1689
1442#endif 1690#endif
1443 1691
1444/*****************************************************************************/ 1692/*****************************************************************************/
1445 1693
1694#if EV_USE_IOCP
1695# include "ev_iocp.c"
1696#endif
1446#if EV_USE_PORT 1697#if EV_USE_PORT
1447# include "ev_port.c" 1698# include "ev_port.c"
1448#endif 1699#endif
1449#if EV_USE_KQUEUE 1700#if EV_USE_KQUEUE
1450# include "ev_kqueue.c" 1701# include "ev_kqueue.c"
… …
1457#endif 1708#endif
1458#if EV_USE_SELECT 1709#if EV_USE_SELECT
1459# include "ev_select.c" 1710# include "ev_select.c"
1460#endif 1711#endif
1461 1712
1462int 1713int ecb_cold
1463ev_version_major (void) 1714ev_version_major (void)
1464{ 1715{
1465 return EV_VERSION_MAJOR; 1716 return EV_VERSION_MAJOR;
1466} 1717}
1467 1718
1468int 1719int ecb_cold
1469ev_version_minor (void) 1720ev_version_minor (void)
1470{ 1721{
1471 return EV_VERSION_MINOR; 1722 return EV_VERSION_MINOR;
1472} 1723}
1473 1724
1474/* return true if we are running with elevated privileges and should ignore env variables */ 1725/* return true if we are running with elevated privileges and should ignore env variables */
1475int inline_size 1726int inline_size ecb_cold
1476enable_secure (void) 1727enable_secure (void)
1477{ 1728{
1478#ifdef _WIN32 1729#ifdef _WIN32
1479 return 0; 1730 return 0;
1480#else 1731#else
1481 return getuid () != geteuid () 1732 return getuid () != geteuid ()
1482 || getgid () != getegid (); 1733 || getgid () != getegid ();
1483#endif 1734#endif
1484} 1735}
1485 1736
1486unsigned int 1737unsigned int ecb_cold
1487ev_supported_backends (void) 1738ev_supported_backends (void)
1488{ 1739{
1489 unsigned int flags = 0; 1740 unsigned int flags = 0;
1490 1741
1491 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1742 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1495 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1746 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1496 1747
1497 return flags; 1748 return flags;
1498} 1749}
1499 1750
1500unsigned int 1751unsigned int ecb_cold
1501ev_recommended_backends (void) 1752ev_recommended_backends (void)
1502{ 1753{
1503 unsigned int flags = ev_supported_backends (); 1754 unsigned int flags = ev_supported_backends ();
1504 1755
1505#ifndef __NetBSD__ 1756#ifndef __NetBSD__
… …
1510#ifdef __APPLE__ 1761#ifdef __APPLE__
1511 /* only select works correctly on that "unix-certified" platform */ 1762 /* only select works correctly on that "unix-certified" platform */
1512 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1763 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1513 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1764 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1514#endif 1765#endif
1766#ifdef __FreeBSD__
1767 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1768#endif
1515 1769
1516 return flags; 1770 return flags;
1517} 1771}
1518 1772
1519unsigned int 1773unsigned int ecb_cold
1520ev_embeddable_backends (void) 1774ev_embeddable_backends (void)
1521{ 1775{
1522 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1776 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1523 1777
1524 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1778 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1525 /* please fix it and tell me how to detect the fix */ 1779 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1526 flags &= ~EVBACKEND_EPOLL; 1780 flags &= ~EVBACKEND_EPOLL;
1527 1781
1528 return flags; 1782 return flags;
1529} 1783}
1530 1784
1531unsigned int 1785unsigned int
1532ev_backend (EV_P) 1786ev_backend (EV_P)
1533{ 1787{
1534 return backend; 1788 return backend;
1535} 1789}
1536 1790
1537#if EV_MINIMAL < 2 1791#if EV_FEATURE_API
1538unsigned int 1792unsigned int
1539ev_loop_count (EV_P) 1793ev_iteration (EV_P)
1540{ 1794{
1541 return loop_count; 1795 return loop_count;
1542} 1796}
1543 1797
1544unsigned int 1798unsigned int
1545ev_loop_depth (EV_P) 1799ev_depth (EV_P)
1546{ 1800{
1547 return loop_depth; 1801 return loop_depth;
1548} 1802}
1549 1803
1550void 1804void
… …
1569ev_userdata (EV_P) 1823ev_userdata (EV_P)
1570{ 1824{
1571 return userdata; 1825 return userdata;
1572} 1826}
1573 1827
1828void
1574void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 1829ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1575{ 1830{
1576 invoke_cb = invoke_pending_cb; 1831 invoke_cb = invoke_pending_cb;
1577} 1832}
1578 1833
1834void
1579void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 1835ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1580{ 1836{
1581 release_cb = release; 1837 release_cb = release;
1582 acquire_cb = acquire; 1838 acquire_cb = acquire;
1583} 1839}
1584#endif 1840#endif
1585 1841
1586/* initialise a loop structure, must be zero-initialised */ 1842/* initialise a loop structure, must be zero-initialised */
1587static void noinline 1843static void noinline ecb_cold
1588loop_init (EV_P_ unsigned int flags) 1844loop_init (EV_P_ unsigned int flags)
1589{ 1845{
1590 if (!backend) 1846 if (!backend)
1591 { 1847 {
1848 origflags = flags;
1849
1592#if EV_USE_REALTIME 1850#if EV_USE_REALTIME
1593 if (!have_realtime) 1851 if (!have_realtime)
1594 { 1852 {
1595 struct timespec ts; 1853 struct timespec ts;
1596 1854
… …
1618 if (!(flags & EVFLAG_NOENV) 1876 if (!(flags & EVFLAG_NOENV)
1619 && !enable_secure () 1877 && !enable_secure ()
1620 && getenv ("LIBEV_FLAGS")) 1878 && getenv ("LIBEV_FLAGS"))
1621 flags = atoi (getenv ("LIBEV_FLAGS")); 1879 flags = atoi (getenv ("LIBEV_FLAGS"));
1622 1880
1623 ev_rt_now = ev_time (); 1881 ev_rt_now = ev_time ();
1624 mn_now = get_clock (); 1882 mn_now = get_clock ();
1625 now_floor = mn_now; 1883 now_floor = mn_now;
1626 rtmn_diff = ev_rt_now - mn_now; 1884 rtmn_diff = ev_rt_now - mn_now;
1627#if EV_MINIMAL < 2 1885#if EV_FEATURE_API
1628 invoke_cb = ev_invoke_pending; 1886 invoke_cb = ev_invoke_pending;
1629#endif 1887#endif
1630 1888
1631 io_blocktime = 0.; 1889 io_blocktime = 0.;
1632 timeout_blocktime = 0.; 1890 timeout_blocktime = 0.;
1633 backend = 0; 1891 backend = 0;
1634 backend_fd = -1; 1892 backend_fd = -1;
1635 sig_pending = 0; 1893 sig_pending = 0;
1636#if EV_ASYNC_ENABLE 1894#if EV_ASYNC_ENABLE
1637 async_pending = 0; 1895 async_pending = 0;
1638#endif 1896#endif
1897 pipe_write_skipped = 0;
1898 pipe_write_wanted = 0;
1639#if EV_USE_INOTIFY 1899#if EV_USE_INOTIFY
1640 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1900 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1641#endif 1901#endif
1642#if EV_USE_SIGNALFD 1902#if EV_USE_SIGNALFD
1643 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1903 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1644#endif 1904#endif
1645 1905
1646 if (!(flags & 0x0000ffffU)) 1906 if (!(flags & EVBACKEND_MASK))
1647 flags |= ev_recommended_backends (); 1907 flags |= ev_recommended_backends ();
1648 1908
1909#if EV_USE_IOCP
1910 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1911#endif
1649#if EV_USE_PORT 1912#if EV_USE_PORT
1650 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1913 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1651#endif 1914#endif
1652#if EV_USE_KQUEUE 1915#if EV_USE_KQUEUE
1653 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1916 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1662 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1925 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1663#endif 1926#endif
1664 1927
1665 ev_prepare_init (&pending_w, pendingcb); 1928 ev_prepare_init (&pending_w, pendingcb);
1666 1929
1930#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1667 ev_init (&pipe_w, pipecb); 1931 ev_init (&pipe_w, pipecb);
1668 ev_set_priority (&pipe_w, EV_MAXPRI); 1932 ev_set_priority (&pipe_w, EV_MAXPRI);
1933#endif
1669 } 1934 }
1670} 1935}
1671 1936
1672/* free up a loop structure */ 1937/* free up a loop structure */
1673static void noinline 1938void ecb_cold
1674loop_destroy (EV_P) 1939ev_loop_destroy (EV_P)
1675{ 1940{
1676 int i; 1941 int i;
1942
1943#if EV_MULTIPLICITY
1944 /* mimic free (0) */
1945 if (!EV_A)
1946 return;
1947#endif
1948
1949#if EV_CLEANUP_ENABLE
1950 /* queue cleanup watchers (and execute them) */
1951 if (expect_false (cleanupcnt))
1952 {
1953 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1954 EV_INVOKE_PENDING;
1955 }
1956#endif
1957
1958#if EV_CHILD_ENABLE
1959 if (ev_is_active (&childev))
1960 {
1961 ev_ref (EV_A); /* child watcher */
1962 ev_signal_stop (EV_A_ &childev);
1963 }
1964#endif
1677 1965
1678 if (ev_is_active (&pipe_w)) 1966 if (ev_is_active (&pipe_w))
1679 { 1967 {
1680 /*ev_ref (EV_A);*/ 1968 /*ev_ref (EV_A);*/
1681 /*ev_io_stop (EV_A_ &pipe_w);*/ 1969 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1703#endif 1991#endif
1704 1992
1705 if (backend_fd >= 0) 1993 if (backend_fd >= 0)
1706 close (backend_fd); 1994 close (backend_fd);
1707 1995
1996#if EV_USE_IOCP
1997 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1998#endif
1708#if EV_USE_PORT 1999#if EV_USE_PORT
1709 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2000 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1710#endif 2001#endif
1711#if EV_USE_KQUEUE 2002#if EV_USE_KQUEUE
1712 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2003 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1739 array_free (periodic, EMPTY); 2030 array_free (periodic, EMPTY);
1740#endif 2031#endif
1741#if EV_FORK_ENABLE 2032#if EV_FORK_ENABLE
1742 array_free (fork, EMPTY); 2033 array_free (fork, EMPTY);
1743#endif 2034#endif
2035#if EV_CLEANUP_ENABLE
2036 array_free (cleanup, EMPTY);
2037#endif
1744 array_free (prepare, EMPTY); 2038 array_free (prepare, EMPTY);
1745 array_free (check, EMPTY); 2039 array_free (check, EMPTY);
1746#if EV_ASYNC_ENABLE 2040#if EV_ASYNC_ENABLE
1747 array_free (async, EMPTY); 2041 array_free (async, EMPTY);
1748#endif 2042#endif
1749 2043
1750 backend = 0; 2044 backend = 0;
2045
2046#if EV_MULTIPLICITY
2047 if (ev_is_default_loop (EV_A))
2048#endif
2049 ev_default_loop_ptr = 0;
2050#if EV_MULTIPLICITY
2051 else
2052 ev_free (EV_A);
2053#endif
1751} 2054}
1752 2055
1753#if EV_USE_INOTIFY 2056#if EV_USE_INOTIFY
1754inline_size void infy_fork (EV_P); 2057inline_size void infy_fork (EV_P);
1755#endif 2058#endif
… …
1770 infy_fork (EV_A); 2073 infy_fork (EV_A);
1771#endif 2074#endif
1772 2075
1773 if (ev_is_active (&pipe_w)) 2076 if (ev_is_active (&pipe_w))
1774 { 2077 {
1775 /* this "locks" the handlers against writing to the pipe */ 2078 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1776 /* while we modify the fd vars */
1777 sig_pending = 1;
1778#if EV_ASYNC_ENABLE
1779 async_pending = 1;
1780#endif
1781 2079
1782 ev_ref (EV_A); 2080 ev_ref (EV_A);
1783 ev_io_stop (EV_A_ &pipe_w); 2081 ev_io_stop (EV_A_ &pipe_w);
1784 2082
1785#if EV_USE_EVENTFD 2083#if EV_USE_EVENTFD
… …
1791 { 2089 {
1792 EV_WIN32_CLOSE_FD (evpipe [0]); 2090 EV_WIN32_CLOSE_FD (evpipe [0]);
1793 EV_WIN32_CLOSE_FD (evpipe [1]); 2091 EV_WIN32_CLOSE_FD (evpipe [1]);
1794 } 2092 }
1795 2093
2094#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1796 evpipe_init (EV_A); 2095 evpipe_init (EV_A);
1797 /* now iterate over everything, in case we missed something */ 2096 /* now iterate over everything, in case we missed something */
1798 pipecb (EV_A_ &pipe_w, EV_READ); 2097 pipecb (EV_A_ &pipe_w, EV_READ);
2098#endif
1799 } 2099 }
1800 2100
1801 postfork = 0; 2101 postfork = 0;
1802} 2102}
1803 2103
1804#if EV_MULTIPLICITY 2104#if EV_MULTIPLICITY
1805 2105
1806struct ev_loop * 2106struct ev_loop * ecb_cold
1807ev_loop_new (unsigned int flags) 2107ev_loop_new (unsigned int flags)
1808{ 2108{
1809 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2109 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1810 2110
1811 memset (EV_A, 0, sizeof (struct ev_loop)); 2111 memset (EV_A, 0, sizeof (struct ev_loop));
1812 loop_init (EV_A_ flags); 2112 loop_init (EV_A_ flags);
1813 2113
1814 if (ev_backend (EV_A)) 2114 if (ev_backend (EV_A))
1815 return EV_A; 2115 return EV_A;
1816 2116
2117 ev_free (EV_A);
1817 return 0; 2118 return 0;
1818} 2119}
1819 2120
1820void
1821ev_loop_destroy (EV_P)
1822{
1823 loop_destroy (EV_A);
1824 ev_free (loop);
1825}
1826
1827void
1828ev_loop_fork (EV_P)
1829{
1830 postfork = 1; /* must be in line with ev_default_fork */
1831}
1832#endif /* multiplicity */ 2121#endif /* multiplicity */
1833 2122
1834#if EV_VERIFY 2123#if EV_VERIFY
1835static void noinline 2124static void noinline ecb_cold
1836verify_watcher (EV_P_ W w) 2125verify_watcher (EV_P_ W w)
1837{ 2126{
1838 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2127 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1839 2128
1840 if (w->pending) 2129 if (w->pending)
1841 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2130 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1842} 2131}
1843 2132
1844static void noinline 2133static void noinline ecb_cold
1845verify_heap (EV_P_ ANHE *heap, int N) 2134verify_heap (EV_P_ ANHE *heap, int N)
1846{ 2135{
1847 int i; 2136 int i;
1848 2137
1849 for (i = HEAP0; i < N + HEAP0; ++i) 2138 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1854 2143
1855 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2144 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1856 } 2145 }
1857} 2146}
1858 2147
1859static void noinline 2148static void noinline ecb_cold
1860array_verify (EV_P_ W *ws, int cnt) 2149array_verify (EV_P_ W *ws, int cnt)
1861{ 2150{
1862 while (cnt--) 2151 while (cnt--)
1863 { 2152 {
1864 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2153 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1865 verify_watcher (EV_A_ ws [cnt]); 2154 verify_watcher (EV_A_ ws [cnt]);
1866 } 2155 }
1867} 2156}
1868#endif 2157#endif
1869 2158
1870#if EV_MINIMAL < 2 2159#if EV_FEATURE_API
1871void 2160void ecb_cold
1872ev_loop_verify (EV_P) 2161ev_verify (EV_P)
1873{ 2162{
1874#if EV_VERIFY 2163#if EV_VERIFY
1875 int i; 2164 int i;
1876 WL w; 2165 WL w;
1877 2166
… …
1911#if EV_FORK_ENABLE 2200#if EV_FORK_ENABLE
1912 assert (forkmax >= forkcnt); 2201 assert (forkmax >= forkcnt);
1913 array_verify (EV_A_ (W *)forks, forkcnt); 2202 array_verify (EV_A_ (W *)forks, forkcnt);
1914#endif 2203#endif
1915 2204
2205#if EV_CLEANUP_ENABLE
2206 assert (cleanupmax >= cleanupcnt);
2207 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2208#endif
2209
1916#if EV_ASYNC_ENABLE 2210#if EV_ASYNC_ENABLE
1917 assert (asyncmax >= asynccnt); 2211 assert (asyncmax >= asynccnt);
1918 array_verify (EV_A_ (W *)asyncs, asynccnt); 2212 array_verify (EV_A_ (W *)asyncs, asynccnt);
1919#endif 2213#endif
1920 2214
2215#if EV_PREPARE_ENABLE
1921 assert (preparemax >= preparecnt); 2216 assert (preparemax >= preparecnt);
1922 array_verify (EV_A_ (W *)prepares, preparecnt); 2217 array_verify (EV_A_ (W *)prepares, preparecnt);
2218#endif
1923 2219
2220#if EV_CHECK_ENABLE
1924 assert (checkmax >= checkcnt); 2221 assert (checkmax >= checkcnt);
1925 array_verify (EV_A_ (W *)checks, checkcnt); 2222 array_verify (EV_A_ (W *)checks, checkcnt);
2223#endif
1926 2224
1927# if 0 2225# if 0
2226#if EV_CHILD_ENABLE
1928 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2227 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1929 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2228 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2229#endif
1930# endif 2230# endif
1931#endif 2231#endif
1932} 2232}
1933#endif 2233#endif
1934 2234
1935#if EV_MULTIPLICITY 2235#if EV_MULTIPLICITY
1936struct ev_loop * 2236struct ev_loop * ecb_cold
1937ev_default_loop_init (unsigned int flags)
1938#else 2237#else
1939int 2238int
2239#endif
1940ev_default_loop (unsigned int flags) 2240ev_default_loop (unsigned int flags)
1941#endif
1942{ 2241{
1943 if (!ev_default_loop_ptr) 2242 if (!ev_default_loop_ptr)
1944 { 2243 {
1945#if EV_MULTIPLICITY 2244#if EV_MULTIPLICITY
1946 EV_P = ev_default_loop_ptr = &default_loop_struct; 2245 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1950 2249
1951 loop_init (EV_A_ flags); 2250 loop_init (EV_A_ flags);
1952 2251
1953 if (ev_backend (EV_A)) 2252 if (ev_backend (EV_A))
1954 { 2253 {
1955#ifndef _WIN32 2254#if EV_CHILD_ENABLE
1956 ev_signal_init (&childev, childcb, SIGCHLD); 2255 ev_signal_init (&childev, childcb, SIGCHLD);
1957 ev_set_priority (&childev, EV_MAXPRI); 2256 ev_set_priority (&childev, EV_MAXPRI);
1958 ev_signal_start (EV_A_ &childev); 2257 ev_signal_start (EV_A_ &childev);
1959 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2258 ev_unref (EV_A); /* child watcher should not keep loop alive */
1960#endif 2259#endif
… …
1965 2264
1966 return ev_default_loop_ptr; 2265 return ev_default_loop_ptr;
1967} 2266}
1968 2267
1969void 2268void
1970ev_default_destroy (void) 2269ev_loop_fork (EV_P)
1971{ 2270{
1972#if EV_MULTIPLICITY
1973 EV_P = ev_default_loop_ptr;
1974#endif
1975
1976 ev_default_loop_ptr = 0;
1977
1978#ifndef _WIN32
1979 ev_ref (EV_A); /* child watcher */
1980 ev_signal_stop (EV_A_ &childev);
1981#endif
1982
1983 loop_destroy (EV_A);
1984}
1985
1986void
1987ev_default_fork (void)
1988{
1989#if EV_MULTIPLICITY
1990 EV_P = ev_default_loop_ptr;
1991#endif
1992
1993 postfork = 1; /* must be in line with ev_loop_fork */ 2271 postfork = 1; /* must be in line with ev_default_fork */
1994} 2272}
1995 2273
1996/*****************************************************************************/ 2274/*****************************************************************************/
1997 2275
1998void 2276void
… …
2020 2298
2021 for (pri = NUMPRI; pri--; ) 2299 for (pri = NUMPRI; pri--; )
2022 while (pendingcnt [pri]) 2300 while (pendingcnt [pri])
2023 { 2301 {
2024 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2302 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2025
2026 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2027 /* ^ this is no longer true, as pending_w could be here */
2028 2303
2029 p->w->pending = 0; 2304 p->w->pending = 0;
2030 EV_CB_INVOKE (p->w, p->events); 2305 EV_CB_INVOKE (p->w, p->events);
2031 EV_FREQUENT_CHECK; 2306 EV_FREQUENT_CHECK;
2032 } 2307 }
… …
2089 EV_FREQUENT_CHECK; 2364 EV_FREQUENT_CHECK;
2090 feed_reverse (EV_A_ (W)w); 2365 feed_reverse (EV_A_ (W)w);
2091 } 2366 }
2092 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2367 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2093 2368
2094 feed_reverse_done (EV_A_ EV_TIMEOUT); 2369 feed_reverse_done (EV_A_ EV_TIMER);
2095 } 2370 }
2096} 2371}
2097 2372
2098#if EV_PERIODIC_ENABLE 2373#if EV_PERIODIC_ENABLE
2374
2375static void noinline
2376periodic_recalc (EV_P_ ev_periodic *w)
2377{
2378 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2379 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2380
2381 /* the above almost always errs on the low side */
2382 while (at <= ev_rt_now)
2383 {
2384 ev_tstamp nat = at + w->interval;
2385
2386 /* when resolution fails us, we use ev_rt_now */
2387 if (expect_false (nat == at))
2388 {
2389 at = ev_rt_now;
2390 break;
2391 }
2392
2393 at = nat;
2394 }
2395
2396 ev_at (w) = at;
2397}
2398
2099/* make periodics pending */ 2399/* make periodics pending */
2100inline_size void 2400inline_size void
2101periodics_reify (EV_P) 2401periodics_reify (EV_P)
2102{ 2402{
2103 EV_FREQUENT_CHECK; 2403 EV_FREQUENT_CHECK;
… …
2122 ANHE_at_cache (periodics [HEAP0]); 2422 ANHE_at_cache (periodics [HEAP0]);
2123 downheap (periodics, periodiccnt, HEAP0); 2423 downheap (periodics, periodiccnt, HEAP0);
2124 } 2424 }
2125 else if (w->interval) 2425 else if (w->interval)
2126 { 2426 {
2127 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2427 periodic_recalc (EV_A_ w);
2128 /* if next trigger time is not sufficiently in the future, put it there */
2129 /* this might happen because of floating point inexactness */
2130 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2131 {
2132 ev_at (w) += w->interval;
2133
2134 /* if interval is unreasonably low we might still have a time in the past */
2135 /* so correct this. this will make the periodic very inexact, but the user */
2136 /* has effectively asked to get triggered more often than possible */
2137 if (ev_at (w) < ev_rt_now)
2138 ev_at (w) = ev_rt_now;
2139 }
2140
2141 ANHE_at_cache (periodics [HEAP0]); 2428 ANHE_at_cache (periodics [HEAP0]);
2142 downheap (periodics, periodiccnt, HEAP0); 2429 downheap (periodics, periodiccnt, HEAP0);
2143 } 2430 }
2144 else 2431 else
2145 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2432 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2152 feed_reverse_done (EV_A_ EV_PERIODIC); 2439 feed_reverse_done (EV_A_ EV_PERIODIC);
2153 } 2440 }
2154} 2441}
2155 2442
2156/* simply recalculate all periodics */ 2443/* simply recalculate all periodics */
2157/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2444/* TODO: maybe ensure that at least one event happens when jumping forward? */
2158static void noinline 2445static void noinline ecb_cold
2159periodics_reschedule (EV_P) 2446periodics_reschedule (EV_P)
2160{ 2447{
2161 int i; 2448 int i;
2162 2449
2163 /* adjust periodics after time jump */ 2450 /* adjust periodics after time jump */
… …
2166 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2453 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2167 2454
2168 if (w->reschedule_cb) 2455 if (w->reschedule_cb)
2169 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2456 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2170 else if (w->interval) 2457 else if (w->interval)
2171 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2458 periodic_recalc (EV_A_ w);
2172 2459
2173 ANHE_at_cache (periodics [i]); 2460 ANHE_at_cache (periodics [i]);
2174 } 2461 }
2175 2462
2176 reheap (periodics, periodiccnt); 2463 reheap (periodics, periodiccnt);
2177} 2464}
2178#endif 2465#endif
2179 2466
2180/* adjust all timers by a given offset */ 2467/* adjust all timers by a given offset */
2181static void noinline 2468static void noinline ecb_cold
2182timers_reschedule (EV_P_ ev_tstamp adjust) 2469timers_reschedule (EV_P_ ev_tstamp adjust)
2183{ 2470{
2184 int i; 2471 int i;
2185 2472
2186 for (i = 0; i < timercnt; ++i) 2473 for (i = 0; i < timercnt; ++i)
… …
2223 * doesn't hurt either as we only do this on time-jumps or 2510 * doesn't hurt either as we only do this on time-jumps or
2224 * in the unlikely event of having been preempted here. 2511 * in the unlikely event of having been preempted here.
2225 */ 2512 */
2226 for (i = 4; --i; ) 2513 for (i = 4; --i; )
2227 { 2514 {
2515 ev_tstamp diff;
2228 rtmn_diff = ev_rt_now - mn_now; 2516 rtmn_diff = ev_rt_now - mn_now;
2229 2517
2518 diff = odiff - rtmn_diff;
2519
2230 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2520 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2231 return; /* all is well */ 2521 return; /* all is well */
2232 2522
2233 ev_rt_now = ev_time (); 2523 ev_rt_now = ev_time ();
2234 mn_now = get_clock (); 2524 mn_now = get_clock ();
2235 now_floor = mn_now; 2525 now_floor = mn_now;
… …
2258 mn_now = ev_rt_now; 2548 mn_now = ev_rt_now;
2259 } 2549 }
2260} 2550}
2261 2551
2262void 2552void
2263ev_loop (EV_P_ int flags) 2553ev_run (EV_P_ int flags)
2264{ 2554{
2265#if EV_MINIMAL < 2 2555#if EV_FEATURE_API
2266 ++loop_depth; 2556 ++loop_depth;
2267#endif 2557#endif
2268 2558
2269 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2559 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2270 2560
2271 loop_done = EVUNLOOP_CANCEL; 2561 loop_done = EVBREAK_CANCEL;
2272 2562
2273 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2563 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2274 2564
2275 do 2565 do
2276 { 2566 {
2277#if EV_VERIFY >= 2 2567#if EV_VERIFY >= 2
2278 ev_loop_verify (EV_A); 2568 ev_verify (EV_A);
2279#endif 2569#endif
2280 2570
2281#ifndef _WIN32 2571#ifndef _WIN32
2282 if (expect_false (curpid)) /* penalise the forking check even more */ 2572 if (expect_false (curpid)) /* penalise the forking check even more */
2283 if (expect_false (getpid () != curpid)) 2573 if (expect_false (getpid () != curpid))
… …
2295 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2585 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2296 EV_INVOKE_PENDING; 2586 EV_INVOKE_PENDING;
2297 } 2587 }
2298#endif 2588#endif
2299 2589
2590#if EV_PREPARE_ENABLE
2300 /* queue prepare watchers (and execute them) */ 2591 /* queue prepare watchers (and execute them) */
2301 if (expect_false (preparecnt)) 2592 if (expect_false (preparecnt))
2302 { 2593 {
2303 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2594 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2304 EV_INVOKE_PENDING; 2595 EV_INVOKE_PENDING;
2305 } 2596 }
2597#endif
2306 2598
2307 if (expect_false (loop_done)) 2599 if (expect_false (loop_done))
2308 break; 2600 break;
2309 2601
2310 /* we might have forked, so reify kernel state if necessary */ 2602 /* we might have forked, so reify kernel state if necessary */
… …
2317 /* calculate blocking time */ 2609 /* calculate blocking time */
2318 { 2610 {
2319 ev_tstamp waittime = 0.; 2611 ev_tstamp waittime = 0.;
2320 ev_tstamp sleeptime = 0.; 2612 ev_tstamp sleeptime = 0.;
2321 2613
2614 /* remember old timestamp for io_blocktime calculation */
2615 ev_tstamp prev_mn_now = mn_now;
2616
2617 /* update time to cancel out callback processing overhead */
2618 time_update (EV_A_ 1e100);
2619
2620 /* from now on, we want a pipe-wake-up */
2621 pipe_write_wanted = 1;
2622
2623 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2624
2322 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2625 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2323 { 2626 {
2324 /* remember old timestamp for io_blocktime calculation */
2325 ev_tstamp prev_mn_now = mn_now;
2326
2327 /* update time to cancel out callback processing overhead */
2328 time_update (EV_A_ 1e100);
2329
2330 waittime = MAX_BLOCKTIME; 2627 waittime = MAX_BLOCKTIME;
2331 2628
2332 if (timercnt) 2629 if (timercnt)
2333 { 2630 {
2334 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2631 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2335 if (waittime > to) waittime = to; 2632 if (waittime > to) waittime = to;
2336 } 2633 }
2337 2634
2338#if EV_PERIODIC_ENABLE 2635#if EV_PERIODIC_ENABLE
2339 if (periodiccnt) 2636 if (periodiccnt)
2340 { 2637 {
2341 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2638 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2342 if (waittime > to) waittime = to; 2639 if (waittime > to) waittime = to;
2343 } 2640 }
2344#endif 2641#endif
2345 2642
2346 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2643 /* don't let timeouts decrease the waittime below timeout_blocktime */
2347 if (expect_false (waittime < timeout_blocktime)) 2644 if (expect_false (waittime < timeout_blocktime))
2348 waittime = timeout_blocktime; 2645 waittime = timeout_blocktime;
2646
2647 /* at this point, we NEED to wait, so we have to ensure */
2648 /* to pass a minimum nonzero value to the backend */
2649 if (expect_false (waittime < backend_mintime))
2650 waittime = backend_mintime;
2349 2651
2350 /* extra check because io_blocktime is commonly 0 */ 2652 /* extra check because io_blocktime is commonly 0 */
2351 if (expect_false (io_blocktime)) 2653 if (expect_false (io_blocktime))
2352 { 2654 {
2353 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2655 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2354 2656
2355 if (sleeptime > waittime - backend_fudge) 2657 if (sleeptime > waittime - backend_mintime)
2356 sleeptime = waittime - backend_fudge; 2658 sleeptime = waittime - backend_mintime;
2357 2659
2358 if (expect_true (sleeptime > 0.)) 2660 if (expect_true (sleeptime > 0.))
2359 { 2661 {
2360 ev_sleep (sleeptime); 2662 ev_sleep (sleeptime);
2361 waittime -= sleeptime; 2663 waittime -= sleeptime;
2362 } 2664 }
2363 } 2665 }
2364 } 2666 }
2365 2667
2366#if EV_MINIMAL < 2 2668#if EV_FEATURE_API
2367 ++loop_count; 2669 ++loop_count;
2368#endif 2670#endif
2369 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2671 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2370 backend_poll (EV_A_ waittime); 2672 backend_poll (EV_A_ waittime);
2371 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2673 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2674
2675 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2676
2677 if (pipe_write_skipped)
2678 {
2679 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2680 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2681 }
2682
2372 2683
2373 /* update ev_rt_now, do magic */ 2684 /* update ev_rt_now, do magic */
2374 time_update (EV_A_ waittime + sleeptime); 2685 time_update (EV_A_ waittime + sleeptime);
2375 } 2686 }
2376 2687
… …
2383#if EV_IDLE_ENABLE 2694#if EV_IDLE_ENABLE
2384 /* queue idle watchers unless other events are pending */ 2695 /* queue idle watchers unless other events are pending */
2385 idle_reify (EV_A); 2696 idle_reify (EV_A);
2386#endif 2697#endif
2387 2698
2699#if EV_CHECK_ENABLE
2388 /* queue check watchers, to be executed first */ 2700 /* queue check watchers, to be executed first */
2389 if (expect_false (checkcnt)) 2701 if (expect_false (checkcnt))
2390 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2702 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2703#endif
2391 2704
2392 EV_INVOKE_PENDING; 2705 EV_INVOKE_PENDING;
2393 } 2706 }
2394 while (expect_true ( 2707 while (expect_true (
2395 activecnt 2708 activecnt
2396 && !loop_done 2709 && !loop_done
2397 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2710 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2398 )); 2711 ));
2399 2712
2400 if (loop_done == EVUNLOOP_ONE) 2713 if (loop_done == EVBREAK_ONE)
2401 loop_done = EVUNLOOP_CANCEL; 2714 loop_done = EVBREAK_CANCEL;
2402 2715
2403#if EV_MINIMAL < 2 2716#if EV_FEATURE_API
2404 --loop_depth; 2717 --loop_depth;
2405#endif 2718#endif
2406} 2719}
2407 2720
2408void 2721void
2409ev_unloop (EV_P_ int how) 2722ev_break (EV_P_ int how)
2410{ 2723{
2411 loop_done = how; 2724 loop_done = how;
2412} 2725}
2413 2726
2414void 2727void
… …
2562 EV_FREQUENT_CHECK; 2875 EV_FREQUENT_CHECK;
2563 2876
2564 wlist_del (&anfds[w->fd].head, (WL)w); 2877 wlist_del (&anfds[w->fd].head, (WL)w);
2565 ev_stop (EV_A_ (W)w); 2878 ev_stop (EV_A_ (W)w);
2566 2879
2567 fd_change (EV_A_ w->fd, 1); 2880 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2568 2881
2569 EV_FREQUENT_CHECK; 2882 EV_FREQUENT_CHECK;
2570} 2883}
2571 2884
2572void noinline 2885void noinline
… …
2664 if (w->reschedule_cb) 2977 if (w->reschedule_cb)
2665 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2978 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2666 else if (w->interval) 2979 else if (w->interval)
2667 { 2980 {
2668 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2981 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2669 /* this formula differs from the one in periodic_reify because we do not always round up */ 2982 periodic_recalc (EV_A_ w);
2670 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2671 } 2983 }
2672 else 2984 else
2673 ev_at (w) = w->offset; 2985 ev_at (w) = w->offset;
2674 2986
2675 EV_FREQUENT_CHECK; 2987 EV_FREQUENT_CHECK;
… …
2724#endif 3036#endif
2725 3037
2726#ifndef SA_RESTART 3038#ifndef SA_RESTART
2727# define SA_RESTART 0 3039# define SA_RESTART 0
2728#endif 3040#endif
3041
3042#if EV_SIGNAL_ENABLE
2729 3043
2730void noinline 3044void noinline
2731ev_signal_start (EV_P_ ev_signal *w) 3045ev_signal_start (EV_P_ ev_signal *w)
2732{ 3046{
2733 if (expect_false (ev_is_active (w))) 3047 if (expect_false (ev_is_active (w)))
… …
2794 sa.sa_handler = ev_sighandler; 3108 sa.sa_handler = ev_sighandler;
2795 sigfillset (&sa.sa_mask); 3109 sigfillset (&sa.sa_mask);
2796 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3110 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2797 sigaction (w->signum, &sa, 0); 3111 sigaction (w->signum, &sa, 0);
2798 3112
3113 if (origflags & EVFLAG_NOSIGMASK)
3114 {
2799 sigemptyset (&sa.sa_mask); 3115 sigemptyset (&sa.sa_mask);
2800 sigaddset (&sa.sa_mask, w->signum); 3116 sigaddset (&sa.sa_mask, w->signum);
2801 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3117 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3118 }
2802#endif 3119#endif
2803 } 3120 }
2804 3121
2805 EV_FREQUENT_CHECK; 3122 EV_FREQUENT_CHECK;
2806} 3123}
… …
2840 } 3157 }
2841 3158
2842 EV_FREQUENT_CHECK; 3159 EV_FREQUENT_CHECK;
2843} 3160}
2844 3161
3162#endif
3163
3164#if EV_CHILD_ENABLE
3165
2845void 3166void
2846ev_child_start (EV_P_ ev_child *w) 3167ev_child_start (EV_P_ ev_child *w)
2847{ 3168{
2848#if EV_MULTIPLICITY 3169#if EV_MULTIPLICITY
2849 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3170 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2852 return; 3173 return;
2853 3174
2854 EV_FREQUENT_CHECK; 3175 EV_FREQUENT_CHECK;
2855 3176
2856 ev_start (EV_A_ (W)w, 1); 3177 ev_start (EV_A_ (W)w, 1);
2857 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3178 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2858 3179
2859 EV_FREQUENT_CHECK; 3180 EV_FREQUENT_CHECK;
2860} 3181}
2861 3182
2862void 3183void
… …
2866 if (expect_false (!ev_is_active (w))) 3187 if (expect_false (!ev_is_active (w)))
2867 return; 3188 return;
2868 3189
2869 EV_FREQUENT_CHECK; 3190 EV_FREQUENT_CHECK;
2870 3191
2871 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3192 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2872 ev_stop (EV_A_ (W)w); 3193 ev_stop (EV_A_ (W)w);
2873 3194
2874 EV_FREQUENT_CHECK; 3195 EV_FREQUENT_CHECK;
2875} 3196}
3197
3198#endif
2876 3199
2877#if EV_STAT_ENABLE 3200#if EV_STAT_ENABLE
2878 3201
2879# ifdef _WIN32 3202# ifdef _WIN32
2880# undef lstat 3203# undef lstat
… …
2941 if (!pend || pend == path) 3264 if (!pend || pend == path)
2942 break; 3265 break;
2943 3266
2944 *pend = 0; 3267 *pend = 0;
2945 w->wd = inotify_add_watch (fs_fd, path, mask); 3268 w->wd = inotify_add_watch (fs_fd, path, mask);
2946 } 3269 }
2947 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3270 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2948 } 3271 }
2949 } 3272 }
2950 3273
2951 if (w->wd >= 0) 3274 if (w->wd >= 0)
2952 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3275 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2953 3276
2954 /* now re-arm timer, if required */ 3277 /* now re-arm timer, if required */
2955 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3278 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2956 ev_timer_again (EV_A_ &w->timer); 3279 ev_timer_again (EV_A_ &w->timer);
2957 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3280 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2965 3288
2966 if (wd < 0) 3289 if (wd < 0)
2967 return; 3290 return;
2968 3291
2969 w->wd = -2; 3292 w->wd = -2;
2970 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3293 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2971 wlist_del (&fs_hash [slot].head, (WL)w); 3294 wlist_del (&fs_hash [slot].head, (WL)w);
2972 3295
2973 /* remove this watcher, if others are watching it, they will rearm */ 3296 /* remove this watcher, if others are watching it, they will rearm */
2974 inotify_rm_watch (fs_fd, wd); 3297 inotify_rm_watch (fs_fd, wd);
2975} 3298}
… …
2977static void noinline 3300static void noinline
2978infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3301infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2979{ 3302{
2980 if (slot < 0) 3303 if (slot < 0)
2981 /* overflow, need to check for all hash slots */ 3304 /* overflow, need to check for all hash slots */
2982 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3305 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2983 infy_wd (EV_A_ slot, wd, ev); 3306 infy_wd (EV_A_ slot, wd, ev);
2984 else 3307 else
2985 { 3308 {
2986 WL w_; 3309 WL w_;
2987 3310
2988 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3311 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2989 { 3312 {
2990 ev_stat *w = (ev_stat *)w_; 3313 ev_stat *w = (ev_stat *)w_;
2991 w_ = w_->next; /* lets us remove this watcher and all before it */ 3314 w_ = w_->next; /* lets us remove this watcher and all before it */
2992 3315
2993 if (w->wd == wd || wd == -1) 3316 if (w->wd == wd || wd == -1)
2994 { 3317 {
2995 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3318 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2996 { 3319 {
2997 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3320 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2998 w->wd = -1; 3321 w->wd = -1;
2999 infy_add (EV_A_ w); /* re-add, no matter what */ 3322 infy_add (EV_A_ w); /* re-add, no matter what */
3000 } 3323 }
3001 3324
3002 stat_timer_cb (EV_A_ &w->timer, 0); 3325 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3018 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3341 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3019 ofs += sizeof (struct inotify_event) + ev->len; 3342 ofs += sizeof (struct inotify_event) + ev->len;
3020 } 3343 }
3021} 3344}
3022 3345
3023inline_size unsigned int
3024ev_linux_version (void)
3025{
3026 struct utsname buf;
3027 unsigned int v;
3028 int i;
3029 char *p = buf.release;
3030
3031 if (uname (&buf))
3032 return 0;
3033
3034 for (i = 3+1; --i; )
3035 {
3036 unsigned int c = 0;
3037
3038 for (;;)
3039 {
3040 if (*p >= '0' && *p <= '9')
3041 c = c * 10 + *p++ - '0';
3042 else
3043 {
3044 p += *p == '.';
3045 break;
3046 }
3047 }
3048
3049 v = (v << 8) | c;
3050 }
3051
3052 return v;
3053}
3054
3055inline_size void 3346inline_size void ecb_cold
3056ev_check_2625 (EV_P) 3347ev_check_2625 (EV_P)
3057{ 3348{
3058 /* kernels < 2.6.25 are borked 3349 /* kernels < 2.6.25 are borked
3059 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3350 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3060 */ 3351 */
… …
3116 ev_io_set (&fs_w, fs_fd, EV_READ); 3407 ev_io_set (&fs_w, fs_fd, EV_READ);
3117 ev_io_start (EV_A_ &fs_w); 3408 ev_io_start (EV_A_ &fs_w);
3118 ev_unref (EV_A); 3409 ev_unref (EV_A);
3119 } 3410 }
3120 3411
3121 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3412 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3122 { 3413 {
3123 WL w_ = fs_hash [slot].head; 3414 WL w_ = fs_hash [slot].head;
3124 fs_hash [slot].head = 0; 3415 fs_hash [slot].head = 0;
3125 3416
3126 while (w_) 3417 while (w_)
… …
3301 3592
3302 EV_FREQUENT_CHECK; 3593 EV_FREQUENT_CHECK;
3303} 3594}
3304#endif 3595#endif
3305 3596
3597#if EV_PREPARE_ENABLE
3306void 3598void
3307ev_prepare_start (EV_P_ ev_prepare *w) 3599ev_prepare_start (EV_P_ ev_prepare *w)
3308{ 3600{
3309 if (expect_false (ev_is_active (w))) 3601 if (expect_false (ev_is_active (w)))
3310 return; 3602 return;
… …
3336 3628
3337 ev_stop (EV_A_ (W)w); 3629 ev_stop (EV_A_ (W)w);
3338 3630
3339 EV_FREQUENT_CHECK; 3631 EV_FREQUENT_CHECK;
3340} 3632}
3633#endif
3341 3634
3635#if EV_CHECK_ENABLE
3342void 3636void
3343ev_check_start (EV_P_ ev_check *w) 3637ev_check_start (EV_P_ ev_check *w)
3344{ 3638{
3345 if (expect_false (ev_is_active (w))) 3639 if (expect_false (ev_is_active (w)))
3346 return; 3640 return;
… …
3372 3666
3373 ev_stop (EV_A_ (W)w); 3667 ev_stop (EV_A_ (W)w);
3374 3668
3375 EV_FREQUENT_CHECK; 3669 EV_FREQUENT_CHECK;
3376} 3670}
3671#endif
3377 3672
3378#if EV_EMBED_ENABLE 3673#if EV_EMBED_ENABLE
3379void noinline 3674void noinline
3380ev_embed_sweep (EV_P_ ev_embed *w) 3675ev_embed_sweep (EV_P_ ev_embed *w)
3381{ 3676{
3382 ev_loop (w->other, EVLOOP_NONBLOCK); 3677 ev_run (w->other, EVRUN_NOWAIT);
3383} 3678}
3384 3679
3385static void 3680static void
3386embed_io_cb (EV_P_ ev_io *io, int revents) 3681embed_io_cb (EV_P_ ev_io *io, int revents)
3387{ 3682{
3388 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3683 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3389 3684
3390 if (ev_cb (w)) 3685 if (ev_cb (w))
3391 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3686 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3392 else 3687 else
3393 ev_loop (w->other, EVLOOP_NONBLOCK); 3688 ev_run (w->other, EVRUN_NOWAIT);
3394} 3689}
3395 3690
3396static void 3691static void
3397embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3692embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3398{ 3693{
… …
3402 EV_P = w->other; 3697 EV_P = w->other;
3403 3698
3404 while (fdchangecnt) 3699 while (fdchangecnt)
3405 { 3700 {
3406 fd_reify (EV_A); 3701 fd_reify (EV_A);
3407 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3702 ev_run (EV_A_ EVRUN_NOWAIT);
3408 } 3703 }
3409 } 3704 }
3410} 3705}
3411 3706
3412static void 3707static void
… …
3418 3713
3419 { 3714 {
3420 EV_P = w->other; 3715 EV_P = w->other;
3421 3716
3422 ev_loop_fork (EV_A); 3717 ev_loop_fork (EV_A);
3423 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3718 ev_run (EV_A_ EVRUN_NOWAIT);
3424 } 3719 }
3425 3720
3426 ev_embed_start (EV_A_ w); 3721 ev_embed_start (EV_A_ w);
3427} 3722}
3428 3723
… …
3520 3815
3521 EV_FREQUENT_CHECK; 3816 EV_FREQUENT_CHECK;
3522} 3817}
3523#endif 3818#endif
3524 3819
3820#if EV_CLEANUP_ENABLE
3821void
3822ev_cleanup_start (EV_P_ ev_cleanup *w)
3823{
3824 if (expect_false (ev_is_active (w)))
3825 return;
3826
3827 EV_FREQUENT_CHECK;
3828
3829 ev_start (EV_A_ (W)w, ++cleanupcnt);
3830 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3831 cleanups [cleanupcnt - 1] = w;
3832
3833 /* cleanup watchers should never keep a refcount on the loop */
3834 ev_unref (EV_A);
3835 EV_FREQUENT_CHECK;
3836}
3837
3838void
3839ev_cleanup_stop (EV_P_ ev_cleanup *w)
3840{
3841 clear_pending (EV_A_ (W)w);
3842 if (expect_false (!ev_is_active (w)))
3843 return;
3844
3845 EV_FREQUENT_CHECK;
3846 ev_ref (EV_A);
3847
3848 {
3849 int active = ev_active (w);
3850
3851 cleanups [active - 1] = cleanups [--cleanupcnt];
3852 ev_active (cleanups [active - 1]) = active;
3853 }
3854
3855 ev_stop (EV_A_ (W)w);
3856
3857 EV_FREQUENT_CHECK;
3858}
3859#endif
3860
3525#if EV_ASYNC_ENABLE 3861#if EV_ASYNC_ENABLE
3526void 3862void
3527ev_async_start (EV_P_ ev_async *w) 3863ev_async_start (EV_P_ ev_async *w)
3528{ 3864{
3529 if (expect_false (ev_is_active (w))) 3865 if (expect_false (ev_is_active (w)))
3530 return; 3866 return;
3867
3868 w->sent = 0;
3531 3869
3532 evpipe_init (EV_A); 3870 evpipe_init (EV_A);
3533 3871
3534 EV_FREQUENT_CHECK; 3872 EV_FREQUENT_CHECK;
3535 3873
… …
3613{ 3951{
3614 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3952 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3615 3953
3616 if (expect_false (!once)) 3954 if (expect_false (!once))
3617 { 3955 {
3618 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3956 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3619 return; 3957 return;
3620 } 3958 }
3621 3959
3622 once->cb = cb; 3960 once->cb = cb;
3623 once->arg = arg; 3961 once->arg = arg;
… …
3638} 3976}
3639 3977
3640/*****************************************************************************/ 3978/*****************************************************************************/
3641 3979
3642#if EV_WALK_ENABLE 3980#if EV_WALK_ENABLE
3643void 3981void ecb_cold
3644ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3982ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3645{ 3983{
3646 int i, j; 3984 int i, j;
3647 ev_watcher_list *wl, *wn; 3985 ev_watcher_list *wl, *wn;
3648 3986
… …
3710 if (types & EV_ASYNC) 4048 if (types & EV_ASYNC)
3711 for (i = asynccnt; i--; ) 4049 for (i = asynccnt; i--; )
3712 cb (EV_A_ EV_ASYNC, asyncs [i]); 4050 cb (EV_A_ EV_ASYNC, asyncs [i]);
3713#endif 4051#endif
3714 4052
4053#if EV_PREPARE_ENABLE
3715 if (types & EV_PREPARE) 4054 if (types & EV_PREPARE)
3716 for (i = preparecnt; i--; ) 4055 for (i = preparecnt; i--; )
3717#if EV_EMBED_ENABLE 4056# if EV_EMBED_ENABLE
3718 if (ev_cb (prepares [i]) != embed_prepare_cb) 4057 if (ev_cb (prepares [i]) != embed_prepare_cb)
3719#endif 4058# endif
3720 cb (EV_A_ EV_PREPARE, prepares [i]); 4059 cb (EV_A_ EV_PREPARE, prepares [i]);
4060#endif
3721 4061
4062#if EV_CHECK_ENABLE
3722 if (types & EV_CHECK) 4063 if (types & EV_CHECK)
3723 for (i = checkcnt; i--; ) 4064 for (i = checkcnt; i--; )
3724 cb (EV_A_ EV_CHECK, checks [i]); 4065 cb (EV_A_ EV_CHECK, checks [i]);
4066#endif
3725 4067
4068#if EV_SIGNAL_ENABLE
3726 if (types & EV_SIGNAL) 4069 if (types & EV_SIGNAL)
3727 for (i = 0; i < EV_NSIG - 1; ++i) 4070 for (i = 0; i < EV_NSIG - 1; ++i)
3728 for (wl = signals [i].head; wl; ) 4071 for (wl = signals [i].head; wl; )
3729 { 4072 {
3730 wn = wl->next; 4073 wn = wl->next;
3731 cb (EV_A_ EV_SIGNAL, wl); 4074 cb (EV_A_ EV_SIGNAL, wl);
3732 wl = wn; 4075 wl = wn;
3733 } 4076 }
4077#endif
3734 4078
4079#if EV_CHILD_ENABLE
3735 if (types & EV_CHILD) 4080 if (types & EV_CHILD)
3736 for (i = EV_PID_HASHSIZE; i--; ) 4081 for (i = (EV_PID_HASHSIZE); i--; )
3737 for (wl = childs [i]; wl; ) 4082 for (wl = childs [i]; wl; )
3738 { 4083 {
3739 wn = wl->next; 4084 wn = wl->next;
3740 cb (EV_A_ EV_CHILD, wl); 4085 cb (EV_A_ EV_CHILD, wl);
3741 wl = wn; 4086 wl = wn;
3742 } 4087 }
4088#endif
3743/* EV_STAT 0x00001000 /* stat data changed */ 4089/* EV_STAT 0x00001000 /* stat data changed */
3744/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4090/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3745} 4091}
3746#endif 4092#endif
3747 4093
3748#if EV_MULTIPLICITY 4094#if EV_MULTIPLICITY
3749 #include "ev_wrap.h" 4095 #include "ev_wrap.h"
3750#endif 4096#endif
3751 4097
3752#ifdef __cplusplus 4098EV_CPP(})
3753}
3754#endif
3755 4099

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