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Comparing libev/ev.c (file contents):
Revision 1.325 by root, Sun Jan 24 12:31:55 2010 UTC vs.
Revision 1.388 by root, Fri Jul 29 12:17:26 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 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
… …
163 173
164#include <assert.h> 174#include <assert.h>
165#include <errno.h> 175#include <errno.h>
166#include <sys/types.h> 176#include <sys/types.h>
167#include <time.h> 177#include <time.h>
178#include <limits.h>
168 179
169#include <signal.h> 180#include <signal.h>
170 181
171#ifdef EV_H 182#ifdef EV_H
172# include EV_H 183# include EV_H
173#else 184#else
174# include "ev.h" 185# include "ev.h"
175#endif 186#endif
187
188EV_CPP(extern "C" {)
176 189
177#ifndef _WIN32 190#ifndef _WIN32
178# include <sys/time.h> 191# include <sys/time.h>
179# include <sys/wait.h> 192# include <sys/wait.h>
180# include <unistd.h> 193# include <unistd.h>
… …
183# define WIN32_LEAN_AND_MEAN 196# define WIN32_LEAN_AND_MEAN
184# include <windows.h> 197# include <windows.h>
185# ifndef EV_SELECT_IS_WINSOCKET 198# ifndef EV_SELECT_IS_WINSOCKET
186# define EV_SELECT_IS_WINSOCKET 1 199# define EV_SELECT_IS_WINSOCKET 1
187# endif 200# endif
201# undef EV_AVOID_STDIO
188#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
189 211
190/* 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 */
191 213
192/* try to deduce the maximum number of signals on this platform */ 214/* try to deduce the maximum number of signals on this platform */
193#if defined (EV_NSIG) 215#if defined (EV_NSIG)
… …
205#elif defined (MAXSIG) 227#elif defined (MAXSIG)
206# define EV_NSIG (MAXSIG+1) 228# define EV_NSIG (MAXSIG+1)
207#elif defined (MAX_SIG) 229#elif defined (MAX_SIG)
208# define EV_NSIG (MAX_SIG+1) 230# define EV_NSIG (MAX_SIG+1)
209#elif defined (SIGARRAYSIZE) 231#elif defined (SIGARRAYSIZE)
210# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
211#elif defined (_sys_nsig) 233#elif defined (_sys_nsig)
212# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
213#else 235#else
214# error "unable to find value for NSIG, please report" 236# error "unable to find value for NSIG, please report"
215/* 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! :) */
216# define EV_NSIG 65 239# define EV_NSIG 65
240#endif
241
242#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0
217#endif 244#endif
218 245
219#ifndef EV_USE_CLOCK_SYSCALL 246#ifndef EV_USE_CLOCK_SYSCALL
220# if __linux && __GLIBC__ >= 2 247# if __linux && __GLIBC__ >= 2
221# define EV_USE_CLOCK_SYSCALL 1 248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
222# else 249# else
223# define EV_USE_CLOCK_SYSCALL 0 250# define EV_USE_CLOCK_SYSCALL 0
224# endif 251# endif
225#endif 252#endif
226 253
227#ifndef EV_USE_MONOTONIC 254#ifndef EV_USE_MONOTONIC
228# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
229# define EV_USE_MONOTONIC 1 256# define EV_USE_MONOTONIC EV_FEATURE_OS
230# else 257# else
231# define EV_USE_MONOTONIC 0 258# define EV_USE_MONOTONIC 0
232# endif 259# endif
233#endif 260#endif
234 261
… …
236# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 263# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
237#endif 264#endif
238 265
239#ifndef EV_USE_NANOSLEEP 266#ifndef EV_USE_NANOSLEEP
240# if _POSIX_C_SOURCE >= 199309L 267# if _POSIX_C_SOURCE >= 199309L
241# define EV_USE_NANOSLEEP 1 268# define EV_USE_NANOSLEEP EV_FEATURE_OS
242# else 269# else
243# define EV_USE_NANOSLEEP 0 270# define EV_USE_NANOSLEEP 0
244# endif 271# endif
245#endif 272#endif
246 273
247#ifndef EV_USE_SELECT 274#ifndef EV_USE_SELECT
248# define EV_USE_SELECT 1 275# define EV_USE_SELECT EV_FEATURE_BACKENDS
249#endif 276#endif
250 277
251#ifndef EV_USE_POLL 278#ifndef EV_USE_POLL
252# ifdef _WIN32 279# ifdef _WIN32
253# define EV_USE_POLL 0 280# define EV_USE_POLL 0
254# else 281# else
255# define EV_USE_POLL 1 282# define EV_USE_POLL EV_FEATURE_BACKENDS
256# endif 283# endif
257#endif 284#endif
258 285
259#ifndef EV_USE_EPOLL 286#ifndef EV_USE_EPOLL
260# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 287# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
261# define EV_USE_EPOLL 1 288# define EV_USE_EPOLL EV_FEATURE_BACKENDS
262# else 289# else
263# define EV_USE_EPOLL 0 290# define EV_USE_EPOLL 0
264# endif 291# endif
265#endif 292#endif
266 293
… …
272# define EV_USE_PORT 0 299# define EV_USE_PORT 0
273#endif 300#endif
274 301
275#ifndef EV_USE_INOTIFY 302#ifndef EV_USE_INOTIFY
276# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
277# define EV_USE_INOTIFY 1 304# define EV_USE_INOTIFY EV_FEATURE_OS
278# else 305# else
279# define EV_USE_INOTIFY 0 306# define EV_USE_INOTIFY 0
280# endif 307# endif
281#endif 308#endif
282 309
283#ifndef EV_PID_HASHSIZE 310#ifndef EV_PID_HASHSIZE
284# if EV_MINIMAL 311# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
285# define EV_PID_HASHSIZE 1
286# else
287# define EV_PID_HASHSIZE 16
288# endif
289#endif 312#endif
290 313
291#ifndef EV_INOTIFY_HASHSIZE 314#ifndef EV_INOTIFY_HASHSIZE
292# if EV_MINIMAL 315# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
293# define EV_INOTIFY_HASHSIZE 1
294# else
295# define EV_INOTIFY_HASHSIZE 16
296# endif
297#endif 316#endif
298 317
299#ifndef EV_USE_EVENTFD 318#ifndef EV_USE_EVENTFD
300# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
301# define EV_USE_EVENTFD 1 320# define EV_USE_EVENTFD EV_FEATURE_OS
302# else 321# else
303# define EV_USE_EVENTFD 0 322# define EV_USE_EVENTFD 0
304# endif 323# endif
305#endif 324#endif
306 325
307#ifndef EV_USE_SIGNALFD 326#ifndef EV_USE_SIGNALFD
308# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 327# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
309# define EV_USE_SIGNALFD 1 328# define EV_USE_SIGNALFD EV_FEATURE_OS
310# else 329# else
311# define EV_USE_SIGNALFD 0 330# define EV_USE_SIGNALFD 0
312# endif 331# endif
313#endif 332#endif
314 333
… …
317# define EV_USE_4HEAP 1 336# define EV_USE_4HEAP 1
318# define EV_HEAP_CACHE_AT 1 337# define EV_HEAP_CACHE_AT 1
319#endif 338#endif
320 339
321#ifndef EV_VERIFY 340#ifndef EV_VERIFY
322# define EV_VERIFY !EV_MINIMAL 341# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
323#endif 342#endif
324 343
325#ifndef EV_USE_4HEAP 344#ifndef EV_USE_4HEAP
326# define EV_USE_4HEAP !EV_MINIMAL 345# define EV_USE_4HEAP EV_FEATURE_DATA
327#endif 346#endif
328 347
329#ifndef EV_HEAP_CACHE_AT 348#ifndef EV_HEAP_CACHE_AT
330# define EV_HEAP_CACHE_AT !EV_MINIMAL 349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
331#endif 350#endif
332 351
333/* 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, */
334/* which makes programs even slower. might work on other unices, too. */ 353/* which makes programs even slower. might work on other unices, too. */
335#if EV_USE_CLOCK_SYSCALL 354#if EV_USE_CLOCK_SYSCALL
… …
366# undef EV_USE_INOTIFY 385# undef EV_USE_INOTIFY
367# define EV_USE_INOTIFY 0 386# define EV_USE_INOTIFY 0
368#endif 387#endif
369 388
370#if !EV_USE_NANOSLEEP 389#if !EV_USE_NANOSLEEP
371# ifndef _WIN32 390/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux)
372# include <sys/select.h> 392# include <sys/select.h>
373# endif 393# endif
374#endif 394#endif
375 395
376#if EV_USE_INOTIFY 396#if EV_USE_INOTIFY
377# include <sys/utsname.h>
378# include <sys/statfs.h> 397# include <sys/statfs.h>
379# include <sys/inotify.h> 398# include <sys/inotify.h>
380/* 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 */
381# ifndef IN_DONT_FOLLOW 400# ifndef IN_DONT_FOLLOW
382# undef EV_USE_INOTIFY 401# undef EV_USE_INOTIFY
… …
399# define EFD_CLOEXEC O_CLOEXEC 418# define EFD_CLOEXEC O_CLOEXEC
400# else 419# else
401# define EFD_CLOEXEC 02000000 420# define EFD_CLOEXEC 02000000
402# endif 421# endif
403# endif 422# endif
404# ifdef __cplusplus
405extern "C" {
406# endif
407int eventfd (unsigned int initval, int flags); 423EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
408# ifdef __cplusplus
409}
410# endif
411#endif 424#endif
412 425
413#if EV_USE_SIGNALFD 426#if EV_USE_SIGNALFD
414/* 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 */
415# include <stdint.h> 428# include <stdint.h>
… …
421# define SFD_CLOEXEC O_CLOEXEC 434# define SFD_CLOEXEC O_CLOEXEC
422# else 435# else
423# define SFD_CLOEXEC 02000000 436# define SFD_CLOEXEC 02000000
424# endif 437# endif
425# endif 438# endif
426# ifdef __cplusplus
427extern "C" {
428# endif
429int signalfd (int fd, const sigset_t *mask, int flags); 439EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
430 440
431struct signalfd_siginfo 441struct signalfd_siginfo
432{ 442{
433 uint32_t ssi_signo; 443 uint32_t ssi_signo;
434 char pad[128 - sizeof (uint32_t)]; 444 char pad[128 - sizeof (uint32_t)];
435}; 445};
436# ifdef __cplusplus
437}
438# endif 446#endif
439#endif
440
441 447
442/**/ 448/**/
443 449
444#if EV_VERIFY >= 3 450#if EV_VERIFY >= 3
445# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 451# define EV_FREQUENT_CHECK ev_verify (EV_A)
446#else 452#else
447# define EV_FREQUENT_CHECK do { } while (0) 453# define EV_FREQUENT_CHECK do { } while (0)
448#endif 454#endif
449 455
450/* 456/*
451 * This is used to avoid floating point rounding problems. 457 * This is used to work around floating point rounding problems.
452 * It is added to ev_rt_now when scheduling periodics
453 * to ensure progress, time-wise, even when rounding
454 * errors are against us.
455 * This value is good at least till the year 4000. 458 * This value is good at least till the year 4000.
456 * Better solutions welcome.
457 */ 459 */
458#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 */
459 462
460#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) */
461#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) */
462 465
463#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)
464# 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)
465# 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
466#else 493#else
467# define expect(expr,value) (expr) 494 #define ecb_inline static
468# define noinline
469# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
470# define inline
471# 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
472#endif 508 #endif
509#endif
473 510
511#ifndef ECB_MEMORY_FENCE
512 #if ECB_GCC_VERSION(4,4)
513 #define ECB_MEMORY_FENCE __sync_synchronize ()
514 #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
515 #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
516 #elif _MSC_VER >= 1400 && 0 /* TODO: only true when using volatiles */
517 #define ECB_MEMORY_FENCE do { } while (0)
518 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
519 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
520 #elif defined(_WIN32)
521 #include <WinNT.h>
522 #define ECB_MEMORY_FENCE MemoryBarrier ()
523 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
524 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
525 #endif
526#endif
527
528#ifndef ECB_MEMORY_FENCE
529 #include <pthread.h>
530
531 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
532 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
533 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
534 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
535#endif
536
537#if ECB_GCC_VERSION(3,1)
538 #define ecb_attribute(attrlist) __attribute__(attrlist)
539 #define ecb_is_constant(expr) __builtin_constant_p (expr)
540 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
541 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
542#else
543 #define ecb_attribute(attrlist)
544 #define ecb_is_constant(expr) 0
545 #define ecb_expect(expr,value) (expr)
546 #define ecb_prefetch(addr,rw,locality)
547#endif
548
549#define ecb_noinline ecb_attribute ((__noinline__))
550#define ecb_noreturn ecb_attribute ((__noreturn__))
551#define ecb_unused ecb_attribute ((__unused__))
552#define ecb_const ecb_attribute ((__const__))
553#define ecb_pure ecb_attribute ((__pure__))
554
555#if ECB_GCC_VERSION(4,3)
556 #define ecb_artificial ecb_attribute ((__artificial__))
557 #define ecb_hot ecb_attribute ((__hot__))
558 #define ecb_cold ecb_attribute ((__cold__))
559#else
560 #define ecb_artificial
561 #define ecb_hot
562 #define ecb_cold
563#endif
564
565/* put around conditional expressions if you are very sure that the */
566/* expression is mostly true or mostly false. note that these return */
567/* booleans, not the expression. */
474#define expect_false(expr) expect ((expr) != 0, 0) 568#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
475#define expect_true(expr) expect ((expr) != 0, 1) 569#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
570/* ecb.h end */
571
572#define expect_false(cond) ecb_expect_false (cond)
573#define expect_true(cond) ecb_expect_true (cond)
574#define noinline ecb_noinline
575
476#define inline_size static inline 576#define inline_size ecb_inline
477 577
478#if EV_MINIMAL 578#if EV_FEATURE_CODE
579# define inline_speed ecb_inline
580#else
479# define inline_speed static noinline 581# define inline_speed static noinline
480#else
481# define inline_speed static inline
482#endif 582#endif
483 583
484#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 584#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
485 585
486#if EV_MINPRI == EV_MAXPRI 586#if EV_MINPRI == EV_MAXPRI
… …
499#define ev_active(w) ((W)(w))->active 599#define ev_active(w) ((W)(w))->active
500#define ev_at(w) ((WT)(w))->at 600#define ev_at(w) ((WT)(w))->at
501 601
502#if EV_USE_REALTIME 602#if EV_USE_REALTIME
503/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 603/* sig_atomic_t is used to avoid per-thread variables or locking but still */
504/* giving it a reasonably high chance of working on typical architetcures */ 604/* giving it a reasonably high chance of working on typical architectures */
505static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 605static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
506#endif 606#endif
507 607
508#if EV_USE_MONOTONIC 608#if EV_USE_MONOTONIC
509static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 609static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
523# include "ev_win32.c" 623# include "ev_win32.c"
524#endif 624#endif
525 625
526/*****************************************************************************/ 626/*****************************************************************************/
527 627
628/* define a suitable floor function (only used by periodics atm) */
629
630#if EV_USE_FLOOR
631# include <math.h>
632# define ev_floor(v) floor (v)
633#else
634
635#include <float.h>
636
637/* a floor() replacement function, should be independent of ev_tstamp type */
638static ev_tstamp noinline
639ev_floor (ev_tstamp v)
640{
641 /* the choice of shift factor is not terribly important */
642#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
643 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
644#else
645 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
646#endif
647
648 /* argument too large for an unsigned long? */
649 if (expect_false (v >= shift))
650 {
651 ev_tstamp f;
652
653 if (v == v - 1.)
654 return v; /* very large number */
655
656 f = shift * ev_floor (v * (1. / shift));
657 return f + ev_floor (v - f);
658 }
659
660 /* special treatment for negative args? */
661 if (expect_false (v < 0.))
662 {
663 ev_tstamp f = -ev_floor (-v);
664
665 return f - (f == v ? 0 : 1);
666 }
667
668 /* fits into an unsigned long */
669 return (unsigned long)v;
670}
671
672#endif
673
674/*****************************************************************************/
675
676#ifdef __linux
677# include <sys/utsname.h>
678#endif
679
680static unsigned int noinline ecb_cold
681ev_linux_version (void)
682{
683#ifdef __linux
684 unsigned int v = 0;
685 struct utsname buf;
686 int i;
687 char *p = buf.release;
688
689 if (uname (&buf))
690 return 0;
691
692 for (i = 3+1; --i; )
693 {
694 unsigned int c = 0;
695
696 for (;;)
697 {
698 if (*p >= '0' && *p <= '9')
699 c = c * 10 + *p++ - '0';
700 else
701 {
702 p += *p == '.';
703 break;
704 }
705 }
706
707 v = (v << 8) | c;
708 }
709
710 return v;
711#else
712 return 0;
713#endif
714}
715
716/*****************************************************************************/
717
718#if EV_AVOID_STDIO
719static void noinline ecb_cold
720ev_printerr (const char *msg)
721{
722 write (STDERR_FILENO, msg, strlen (msg));
723}
724#endif
725
528static void (*syserr_cb)(const char *msg); 726static void (*syserr_cb)(const char *msg);
529 727
530void 728void ecb_cold
531ev_set_syserr_cb (void (*cb)(const char *msg)) 729ev_set_syserr_cb (void (*cb)(const char *msg))
532{ 730{
533 syserr_cb = cb; 731 syserr_cb = cb;
534} 732}
535 733
536static void noinline 734static void noinline ecb_cold
537ev_syserr (const char *msg) 735ev_syserr (const char *msg)
538{ 736{
539 if (!msg) 737 if (!msg)
540 msg = "(libev) system error"; 738 msg = "(libev) system error";
541 739
542 if (syserr_cb) 740 if (syserr_cb)
543 syserr_cb (msg); 741 syserr_cb (msg);
544 else 742 else
545 { 743 {
744#if EV_AVOID_STDIO
745 ev_printerr (msg);
746 ev_printerr (": ");
747 ev_printerr (strerror (errno));
748 ev_printerr ("\n");
749#else
546 perror (msg); 750 perror (msg);
751#endif
547 abort (); 752 abort ();
548 } 753 }
549} 754}
550 755
551static void * 756static void *
552ev_realloc_emul (void *ptr, long size) 757ev_realloc_emul (void *ptr, long size)
553{ 758{
759#if __GLIBC__
760 return realloc (ptr, size);
761#else
554 /* some systems, notably openbsd and darwin, fail to properly 762 /* some systems, notably openbsd and darwin, fail to properly
555 * implement realloc (x, 0) (as required by both ansi c-98 and 763 * implement realloc (x, 0) (as required by both ansi c-89 and
556 * the single unix specification, so work around them here. 764 * the single unix specification, so work around them here.
557 */ 765 */
558 766
559 if (size) 767 if (size)
560 return realloc (ptr, size); 768 return realloc (ptr, size);
561 769
562 free (ptr); 770 free (ptr);
563 return 0; 771 return 0;
772#endif
564} 773}
565 774
566static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 775static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
567 776
568void 777void ecb_cold
569ev_set_allocator (void *(*cb)(void *ptr, long size)) 778ev_set_allocator (void *(*cb)(void *ptr, long size))
570{ 779{
571 alloc = cb; 780 alloc = cb;
572} 781}
573 782
… …
576{ 785{
577 ptr = alloc (ptr, size); 786 ptr = alloc (ptr, size);
578 787
579 if (!ptr && size) 788 if (!ptr && size)
580 { 789 {
790#if EV_AVOID_STDIO
791 ev_printerr ("(libev) memory allocation failed, aborting.\n");
792#else
581 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 793 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
794#endif
582 abort (); 795 abort ();
583 } 796 }
584 797
585 return ptr; 798 return ptr;
586} 799}
… …
602 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 815 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
603 unsigned char unused; 816 unsigned char unused;
604#if EV_USE_EPOLL 817#if EV_USE_EPOLL
605 unsigned int egen; /* generation counter to counter epoll bugs */ 818 unsigned int egen; /* generation counter to counter epoll bugs */
606#endif 819#endif
607#if EV_SELECT_IS_WINSOCKET 820#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
608 SOCKET handle; 821 SOCKET handle;
822#endif
823#if EV_USE_IOCP
824 OVERLAPPED or, ow;
609#endif 825#endif
610} ANFD; 826} ANFD;
611 827
612/* stores the pending event set for a given watcher */ 828/* stores the pending event set for a given watcher */
613typedef struct 829typedef struct
… …
668 884
669 static int ev_default_loop_ptr; 885 static int ev_default_loop_ptr;
670 886
671#endif 887#endif
672 888
673#if EV_MINIMAL < 2 889#if EV_FEATURE_API
674# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 890# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
675# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 891# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
676# define EV_INVOKE_PENDING invoke_cb (EV_A) 892# define EV_INVOKE_PENDING invoke_cb (EV_A)
677#else 893#else
678# define EV_RELEASE_CB (void)0 894# define EV_RELEASE_CB (void)0
679# define EV_ACQUIRE_CB (void)0 895# define EV_ACQUIRE_CB (void)0
680# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 896# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
681#endif 897#endif
682 898
683#define EVUNLOOP_RECURSE 0x80 899#define EVBREAK_RECURSE 0x80
684 900
685/*****************************************************************************/ 901/*****************************************************************************/
686 902
687#ifndef EV_HAVE_EV_TIME 903#ifndef EV_HAVE_EV_TIME
688ev_tstamp 904ev_tstamp
… …
732 if (delay > 0.) 948 if (delay > 0.)
733 { 949 {
734#if EV_USE_NANOSLEEP 950#if EV_USE_NANOSLEEP
735 struct timespec ts; 951 struct timespec ts;
736 952
737 ts.tv_sec = (time_t)delay; 953 EV_TS_SET (ts, delay);
738 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
739
740 nanosleep (&ts, 0); 954 nanosleep (&ts, 0);
741#elif defined(_WIN32) 955#elif defined(_WIN32)
742 Sleep ((unsigned long)(delay * 1e3)); 956 Sleep ((unsigned long)(delay * 1e3));
743#else 957#else
744 struct timeval tv; 958 struct timeval tv;
745 959
746 tv.tv_sec = (time_t)delay;
747 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
748
749 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 960 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
750 /* something not guaranteed by newer posix versions, but guaranteed */ 961 /* something not guaranteed by newer posix versions, but guaranteed */
751 /* by older ones */ 962 /* by older ones */
963 EV_TV_SET (tv, delay);
752 select (0, 0, 0, 0, &tv); 964 select (0, 0, 0, 0, &tv);
753#endif 965#endif
754 } 966 }
755} 967}
756 968
757/*****************************************************************************/ 969/*****************************************************************************/
758 970
759#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 971#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
760 972
761/* find a suitable new size for the given array, */ 973/* find a suitable new size for the given array, */
762/* hopefully by rounding to a ncie-to-malloc size */ 974/* hopefully by rounding to a nice-to-malloc size */
763inline_size int 975inline_size int
764array_nextsize (int elem, int cur, int cnt) 976array_nextsize (int elem, int cur, int cnt)
765{ 977{
766 int ncur = cur + 1; 978 int ncur = cur + 1;
767 979
… …
779 } 991 }
780 992
781 return ncur; 993 return ncur;
782} 994}
783 995
784static noinline void * 996static void * noinline ecb_cold
785array_realloc (int elem, void *base, int *cur, int cnt) 997array_realloc (int elem, void *base, int *cur, int cnt)
786{ 998{
787 *cur = array_nextsize (elem, *cur, cnt); 999 *cur = array_nextsize (elem, *cur, cnt);
788 return ev_realloc (base, elem * *cur); 1000 return ev_realloc (base, elem * *cur);
789} 1001}
… …
792 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1004 memset ((void *)(base), 0, sizeof (*(base)) * (count))
793 1005
794#define array_needsize(type,base,cur,cnt,init) \ 1006#define array_needsize(type,base,cur,cnt,init) \
795 if (expect_false ((cnt) > (cur))) \ 1007 if (expect_false ((cnt) > (cur))) \
796 { \ 1008 { \
797 int ocur_ = (cur); \ 1009 int ecb_unused ocur_ = (cur); \
798 (base) = (type *)array_realloc \ 1010 (base) = (type *)array_realloc \
799 (sizeof (type), (base), &(cur), (cnt)); \ 1011 (sizeof (type), (base), &(cur), (cnt)); \
800 init ((base) + (ocur_), (cur) - ocur_); \ 1012 init ((base) + (ocur_), (cur) - ocur_); \
801 } 1013 }
802 1014
… …
863} 1075}
864 1076
865/*****************************************************************************/ 1077/*****************************************************************************/
866 1078
867inline_speed void 1079inline_speed void
868fd_event_nc (EV_P_ int fd, int revents) 1080fd_event_nocheck (EV_P_ int fd, int revents)
869{ 1081{
870 ANFD *anfd = anfds + fd; 1082 ANFD *anfd = anfds + fd;
871 ev_io *w; 1083 ev_io *w;
872 1084
873 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1085 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
885fd_event (EV_P_ int fd, int revents) 1097fd_event (EV_P_ int fd, int revents)
886{ 1098{
887 ANFD *anfd = anfds + fd; 1099 ANFD *anfd = anfds + fd;
888 1100
889 if (expect_true (!anfd->reify)) 1101 if (expect_true (!anfd->reify))
890 fd_event_nc (EV_A_ fd, revents); 1102 fd_event_nocheck (EV_A_ fd, revents);
891} 1103}
892 1104
893void 1105void
894ev_feed_fd_event (EV_P_ int fd, int revents) 1106ev_feed_fd_event (EV_P_ int fd, int revents)
895{ 1107{
896 if (fd >= 0 && fd < anfdmax) 1108 if (fd >= 0 && fd < anfdmax)
897 fd_event_nc (EV_A_ fd, revents); 1109 fd_event_nocheck (EV_A_ fd, revents);
898} 1110}
899 1111
900/* make sure the external fd watch events are in-sync */ 1112/* make sure the external fd watch events are in-sync */
901/* with the kernel/libev internal state */ 1113/* with the kernel/libev internal state */
902inline_size void 1114inline_size void
903fd_reify (EV_P) 1115fd_reify (EV_P)
904{ 1116{
905 int i; 1117 int i;
906 1118
1119#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1120 for (i = 0; i < fdchangecnt; ++i)
1121 {
1122 int fd = fdchanges [i];
1123 ANFD *anfd = anfds + fd;
1124
1125 if (anfd->reify & EV__IOFDSET && anfd->head)
1126 {
1127 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1128
1129 if (handle != anfd->handle)
1130 {
1131 unsigned long arg;
1132
1133 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1134
1135 /* handle changed, but fd didn't - we need to do it in two steps */
1136 backend_modify (EV_A_ fd, anfd->events, 0);
1137 anfd->events = 0;
1138 anfd->handle = handle;
1139 }
1140 }
1141 }
1142#endif
1143
907 for (i = 0; i < fdchangecnt; ++i) 1144 for (i = 0; i < fdchangecnt; ++i)
908 { 1145 {
909 int fd = fdchanges [i]; 1146 int fd = fdchanges [i];
910 ANFD *anfd = anfds + fd; 1147 ANFD *anfd = anfds + fd;
911 ev_io *w; 1148 ev_io *w;
912 1149
913 unsigned char events = 0; 1150 unsigned char o_events = anfd->events;
1151 unsigned char o_reify = anfd->reify;
914 1152
915 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1153 anfd->reify = 0;
916 events |= (unsigned char)w->events;
917 1154
918#if EV_SELECT_IS_WINSOCKET 1155 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
919 if (events)
920 { 1156 {
921 unsigned long arg; 1157 anfd->events = 0;
922 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1158
923 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1159 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1160 anfd->events |= (unsigned char)w->events;
1161
1162 if (o_events != anfd->events)
1163 o_reify = EV__IOFDSET; /* actually |= */
924 } 1164 }
925#endif
926 1165
927 { 1166 if (o_reify & EV__IOFDSET)
928 unsigned char o_events = anfd->events;
929 unsigned char o_reify = anfd->reify;
930
931 anfd->reify = 0;
932 anfd->events = events;
933
934 if (o_events != events || o_reify & EV__IOFDSET)
935 backend_modify (EV_A_ fd, o_events, events); 1167 backend_modify (EV_A_ fd, o_events, anfd->events);
936 }
937 } 1168 }
938 1169
939 fdchangecnt = 0; 1170 fdchangecnt = 0;
940} 1171}
941 1172
… …
953 fdchanges [fdchangecnt - 1] = fd; 1184 fdchanges [fdchangecnt - 1] = fd;
954 } 1185 }
955} 1186}
956 1187
957/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1188/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
958inline_speed void 1189inline_speed void ecb_cold
959fd_kill (EV_P_ int fd) 1190fd_kill (EV_P_ int fd)
960{ 1191{
961 ev_io *w; 1192 ev_io *w;
962 1193
963 while ((w = (ev_io *)anfds [fd].head)) 1194 while ((w = (ev_io *)anfds [fd].head))
… …
965 ev_io_stop (EV_A_ w); 1196 ev_io_stop (EV_A_ w);
966 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1197 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
967 } 1198 }
968} 1199}
969 1200
970/* check whether the given fd is atcually valid, for error recovery */ 1201/* check whether the given fd is actually valid, for error recovery */
971inline_size int 1202inline_size int ecb_cold
972fd_valid (int fd) 1203fd_valid (int fd)
973{ 1204{
974#ifdef _WIN32 1205#ifdef _WIN32
975 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1206 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
976#else 1207#else
977 return fcntl (fd, F_GETFD) != -1; 1208 return fcntl (fd, F_GETFD) != -1;
978#endif 1209#endif
979} 1210}
980 1211
981/* called on EBADF to verify fds */ 1212/* called on EBADF to verify fds */
982static void noinline 1213static void noinline ecb_cold
983fd_ebadf (EV_P) 1214fd_ebadf (EV_P)
984{ 1215{
985 int fd; 1216 int fd;
986 1217
987 for (fd = 0; fd < anfdmax; ++fd) 1218 for (fd = 0; fd < anfdmax; ++fd)
… …
989 if (!fd_valid (fd) && errno == EBADF) 1220 if (!fd_valid (fd) && errno == EBADF)
990 fd_kill (EV_A_ fd); 1221 fd_kill (EV_A_ fd);
991} 1222}
992 1223
993/* called on ENOMEM in select/poll to kill some fds and retry */ 1224/* called on ENOMEM in select/poll to kill some fds and retry */
994static void noinline 1225static void noinline ecb_cold
995fd_enomem (EV_P) 1226fd_enomem (EV_P)
996{ 1227{
997 int fd; 1228 int fd;
998 1229
999 for (fd = anfdmax; fd--; ) 1230 for (fd = anfdmax; fd--; )
… …
1017 anfds [fd].emask = 0; 1248 anfds [fd].emask = 0;
1018 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1249 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1019 } 1250 }
1020} 1251}
1021 1252
1253/* used to prepare libev internal fd's */
1254/* this is not fork-safe */
1255inline_speed void
1256fd_intern (int fd)
1257{
1258#ifdef _WIN32
1259 unsigned long arg = 1;
1260 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1261#else
1262 fcntl (fd, F_SETFD, FD_CLOEXEC);
1263 fcntl (fd, F_SETFL, O_NONBLOCK);
1264#endif
1265}
1266
1022/*****************************************************************************/ 1267/*****************************************************************************/
1023 1268
1024/* 1269/*
1025 * the heap functions want a real array index. array index 0 uis guaranteed to not 1270 * the heap functions want a real array index. array index 0 is guaranteed to not
1026 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1271 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1027 * the branching factor of the d-tree. 1272 * the branching factor of the d-tree.
1028 */ 1273 */
1029 1274
1030/* 1275/*
… …
1178 1423
1179static ANSIG signals [EV_NSIG - 1]; 1424static ANSIG signals [EV_NSIG - 1];
1180 1425
1181/*****************************************************************************/ 1426/*****************************************************************************/
1182 1427
1183/* used to prepare libev internal fd's */ 1428#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1184/* this is not fork-safe */
1185inline_speed void
1186fd_intern (int fd)
1187{
1188#ifdef _WIN32
1189 unsigned long arg = 1;
1190 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1191#else
1192 fcntl (fd, F_SETFD, FD_CLOEXEC);
1193 fcntl (fd, F_SETFL, O_NONBLOCK);
1194#endif
1195}
1196 1429
1197static void noinline 1430static void noinline ecb_cold
1198evpipe_init (EV_P) 1431evpipe_init (EV_P)
1199{ 1432{
1200 if (!ev_is_active (&pipe_w)) 1433 if (!ev_is_active (&pipe_w))
1201 { 1434 {
1202#if EV_USE_EVENTFD 1435# if EV_USE_EVENTFD
1203 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1436 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1204 if (evfd < 0 && errno == EINVAL) 1437 if (evfd < 0 && errno == EINVAL)
1205 evfd = eventfd (0, 0); 1438 evfd = eventfd (0, 0);
1206 1439
1207 if (evfd >= 0) 1440 if (evfd >= 0)
… …
1209 evpipe [0] = -1; 1442 evpipe [0] = -1;
1210 fd_intern (evfd); /* doing it twice doesn't hurt */ 1443 fd_intern (evfd); /* doing it twice doesn't hurt */
1211 ev_io_set (&pipe_w, evfd, EV_READ); 1444 ev_io_set (&pipe_w, evfd, EV_READ);
1212 } 1445 }
1213 else 1446 else
1214#endif 1447# endif
1215 { 1448 {
1216 while (pipe (evpipe)) 1449 while (pipe (evpipe))
1217 ev_syserr ("(libev) error creating signal/async pipe"); 1450 ev_syserr ("(libev) error creating signal/async pipe");
1218 1451
1219 fd_intern (evpipe [0]); 1452 fd_intern (evpipe [0]);
… …
1224 ev_io_start (EV_A_ &pipe_w); 1457 ev_io_start (EV_A_ &pipe_w);
1225 ev_unref (EV_A); /* watcher should not keep loop alive */ 1458 ev_unref (EV_A); /* watcher should not keep loop alive */
1226 } 1459 }
1227} 1460}
1228 1461
1229inline_size void 1462inline_speed void
1230evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1463evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1231{ 1464{
1232 if (!*flag) 1465 if (expect_true (*flag))
1466 return;
1467
1468 *flag = 1;
1469
1470 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1471
1472 pipe_write_skipped = 1;
1473
1474 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1475
1476 if (pipe_write_wanted)
1233 { 1477 {
1478 int old_errno;
1479
1480 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1481
1234 int old_errno = errno; /* save errno because write might clobber it */ 1482 old_errno = errno; /* save errno because write will clobber it */
1235
1236 *flag = 1;
1237 1483
1238#if EV_USE_EVENTFD 1484#if EV_USE_EVENTFD
1239 if (evfd >= 0) 1485 if (evfd >= 0)
1240 { 1486 {
1241 uint64_t counter = 1; 1487 uint64_t counter = 1;
1242 write (evfd, &counter, sizeof (uint64_t)); 1488 write (evfd, &counter, sizeof (uint64_t));
1243 } 1489 }
1244 else 1490 else
1245#endif 1491#endif
1492 {
1493 /* win32 people keep sending patches that change this write() to send() */
1494 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1495 /* so when you think this write should be a send instead, please find out */
1496 /* where your send() is from - it's definitely not the microsoft send, and */
1497 /* tell me. thank you. */
1246 write (evpipe [1], &old_errno, 1); 1498 write (evpipe [1], &(evpipe [1]), 1);
1499 }
1247 1500
1248 errno = old_errno; 1501 errno = old_errno;
1249 } 1502 }
1250} 1503}
1251 1504
… …
1254static void 1507static void
1255pipecb (EV_P_ ev_io *iow, int revents) 1508pipecb (EV_P_ ev_io *iow, int revents)
1256{ 1509{
1257 int i; 1510 int i;
1258 1511
1512 if (revents & EV_READ)
1513 {
1259#if EV_USE_EVENTFD 1514#if EV_USE_EVENTFD
1260 if (evfd >= 0) 1515 if (evfd >= 0)
1261 { 1516 {
1262 uint64_t counter; 1517 uint64_t counter;
1263 read (evfd, &counter, sizeof (uint64_t)); 1518 read (evfd, &counter, sizeof (uint64_t));
1264 } 1519 }
1265 else 1520 else
1266#endif 1521#endif
1267 { 1522 {
1268 char dummy; 1523 char dummy;
1524 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1269 read (evpipe [0], &dummy, 1); 1525 read (evpipe [0], &dummy, 1);
1526 }
1270 } 1527 }
1271 1528
1529 pipe_write_skipped = 0;
1530
1531#if EV_SIGNAL_ENABLE
1272 if (sig_pending) 1532 if (sig_pending)
1273 { 1533 {
1274 sig_pending = 0; 1534 sig_pending = 0;
1275 1535
1276 for (i = EV_NSIG - 1; i--; ) 1536 for (i = EV_NSIG - 1; i--; )
1277 if (expect_false (signals [i].pending)) 1537 if (expect_false (signals [i].pending))
1278 ev_feed_signal_event (EV_A_ i + 1); 1538 ev_feed_signal_event (EV_A_ i + 1);
1279 } 1539 }
1540#endif
1280 1541
1281#if EV_ASYNC_ENABLE 1542#if EV_ASYNC_ENABLE
1282 if (async_pending) 1543 if (async_pending)
1283 { 1544 {
1284 async_pending = 0; 1545 async_pending = 0;
… …
1293#endif 1554#endif
1294} 1555}
1295 1556
1296/*****************************************************************************/ 1557/*****************************************************************************/
1297 1558
1559void
1560ev_feed_signal (int signum)
1561{
1562#if EV_MULTIPLICITY
1563 EV_P = signals [signum - 1].loop;
1564
1565 if (!EV_A)
1566 return;
1567#endif
1568
1569 if (!ev_active (&pipe_w))
1570 return;
1571
1572 signals [signum - 1].pending = 1;
1573 evpipe_write (EV_A_ &sig_pending);
1574}
1575
1298static void 1576static void
1299ev_sighandler (int signum) 1577ev_sighandler (int signum)
1300{ 1578{
1301#if EV_MULTIPLICITY
1302 EV_P = signals [signum - 1].loop;
1303#endif
1304
1305#ifdef _WIN32 1579#ifdef _WIN32
1306 signal (signum, ev_sighandler); 1580 signal (signum, ev_sighandler);
1307#endif 1581#endif
1308 1582
1309 signals [signum - 1].pending = 1; 1583 ev_feed_signal (signum);
1310 evpipe_write (EV_A_ &sig_pending);
1311} 1584}
1312 1585
1313void noinline 1586void noinline
1314ev_feed_signal_event (EV_P_ int signum) 1587ev_feed_signal_event (EV_P_ int signum)
1315{ 1588{
… …
1352 break; 1625 break;
1353 } 1626 }
1354} 1627}
1355#endif 1628#endif
1356 1629
1630#endif
1631
1357/*****************************************************************************/ 1632/*****************************************************************************/
1358 1633
1634#if EV_CHILD_ENABLE
1359static WL childs [EV_PID_HASHSIZE]; 1635static WL childs [EV_PID_HASHSIZE];
1360
1361#ifndef _WIN32
1362 1636
1363static ev_signal childev; 1637static ev_signal childev;
1364 1638
1365#ifndef WIFCONTINUED 1639#ifndef WIFCONTINUED
1366# define WIFCONTINUED(status) 0 1640# define WIFCONTINUED(status) 0
… …
1371child_reap (EV_P_ int chain, int pid, int status) 1645child_reap (EV_P_ int chain, int pid, int status)
1372{ 1646{
1373 ev_child *w; 1647 ev_child *w;
1374 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1648 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1375 1649
1376 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1650 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1377 { 1651 {
1378 if ((w->pid == pid || !w->pid) 1652 if ((w->pid == pid || !w->pid)
1379 && (!traced || (w->flags & 1))) 1653 && (!traced || (w->flags & 1)))
1380 { 1654 {
1381 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1655 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1406 /* make sure we are called again until all children have been reaped */ 1680 /* make sure we are called again until all children have been reaped */
1407 /* we need to do it this way so that the callback gets called before we continue */ 1681 /* we need to do it this way so that the callback gets called before we continue */
1408 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1682 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1409 1683
1410 child_reap (EV_A_ pid, pid, status); 1684 child_reap (EV_A_ pid, pid, status);
1411 if (EV_PID_HASHSIZE > 1) 1685 if ((EV_PID_HASHSIZE) > 1)
1412 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1686 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1413} 1687}
1414 1688
1415#endif 1689#endif
1416 1690
1417/*****************************************************************************/ 1691/*****************************************************************************/
1418 1692
1693#if EV_USE_IOCP
1694# include "ev_iocp.c"
1695#endif
1419#if EV_USE_PORT 1696#if EV_USE_PORT
1420# include "ev_port.c" 1697# include "ev_port.c"
1421#endif 1698#endif
1422#if EV_USE_KQUEUE 1699#if EV_USE_KQUEUE
1423# include "ev_kqueue.c" 1700# include "ev_kqueue.c"
… …
1430#endif 1707#endif
1431#if EV_USE_SELECT 1708#if EV_USE_SELECT
1432# include "ev_select.c" 1709# include "ev_select.c"
1433#endif 1710#endif
1434 1711
1435int 1712int ecb_cold
1436ev_version_major (void) 1713ev_version_major (void)
1437{ 1714{
1438 return EV_VERSION_MAJOR; 1715 return EV_VERSION_MAJOR;
1439} 1716}
1440 1717
1441int 1718int ecb_cold
1442ev_version_minor (void) 1719ev_version_minor (void)
1443{ 1720{
1444 return EV_VERSION_MINOR; 1721 return EV_VERSION_MINOR;
1445} 1722}
1446 1723
1447/* return true if we are running with elevated privileges and should ignore env variables */ 1724/* return true if we are running with elevated privileges and should ignore env variables */
1448int inline_size 1725int inline_size ecb_cold
1449enable_secure (void) 1726enable_secure (void)
1450{ 1727{
1451#ifdef _WIN32 1728#ifdef _WIN32
1452 return 0; 1729 return 0;
1453#else 1730#else
1454 return getuid () != geteuid () 1731 return getuid () != geteuid ()
1455 || getgid () != getegid (); 1732 || getgid () != getegid ();
1456#endif 1733#endif
1457} 1734}
1458 1735
1459unsigned int 1736unsigned int ecb_cold
1460ev_supported_backends (void) 1737ev_supported_backends (void)
1461{ 1738{
1462 unsigned int flags = 0; 1739 unsigned int flags = 0;
1463 1740
1464 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1741 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1468 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1745 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1469 1746
1470 return flags; 1747 return flags;
1471} 1748}
1472 1749
1473unsigned int 1750unsigned int ecb_cold
1474ev_recommended_backends (void) 1751ev_recommended_backends (void)
1475{ 1752{
1476 unsigned int flags = ev_supported_backends (); 1753 unsigned int flags = ev_supported_backends ();
1477 1754
1478#ifndef __NetBSD__ 1755#ifndef __NetBSD__
… …
1483#ifdef __APPLE__ 1760#ifdef __APPLE__
1484 /* only select works correctly on that "unix-certified" platform */ 1761 /* only select works correctly on that "unix-certified" platform */
1485 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1762 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1486 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1763 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1487#endif 1764#endif
1765#ifdef __FreeBSD__
1766 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1767#endif
1488 1768
1489 return flags; 1769 return flags;
1490} 1770}
1491 1771
1492unsigned int 1772unsigned int ecb_cold
1493ev_embeddable_backends (void) 1773ev_embeddable_backends (void)
1494{ 1774{
1495 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1775 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1496 1776
1497 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1777 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1498 /* please fix it and tell me how to detect the fix */ 1778 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1499 flags &= ~EVBACKEND_EPOLL; 1779 flags &= ~EVBACKEND_EPOLL;
1500 1780
1501 return flags; 1781 return flags;
1502} 1782}
1503 1783
1504unsigned int 1784unsigned int
1505ev_backend (EV_P) 1785ev_backend (EV_P)
1506{ 1786{
1507 return backend; 1787 return backend;
1508} 1788}
1509 1789
1510#if EV_MINIMAL < 2 1790#if EV_FEATURE_API
1511unsigned int 1791unsigned int
1512ev_loop_count (EV_P) 1792ev_iteration (EV_P)
1513{ 1793{
1514 return loop_count; 1794 return loop_count;
1515} 1795}
1516 1796
1517unsigned int 1797unsigned int
1518ev_loop_depth (EV_P) 1798ev_depth (EV_P)
1519{ 1799{
1520 return loop_depth; 1800 return loop_depth;
1521} 1801}
1522 1802
1523void 1803void
… …
1542ev_userdata (EV_P) 1822ev_userdata (EV_P)
1543{ 1823{
1544 return userdata; 1824 return userdata;
1545} 1825}
1546 1826
1827void
1547void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 1828ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1548{ 1829{
1549 invoke_cb = invoke_pending_cb; 1830 invoke_cb = invoke_pending_cb;
1550} 1831}
1551 1832
1833void
1552void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 1834ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1553{ 1835{
1554 release_cb = release; 1836 release_cb = release;
1555 acquire_cb = acquire; 1837 acquire_cb = acquire;
1556} 1838}
1557#endif 1839#endif
1558 1840
1559/* initialise a loop structure, must be zero-initialised */ 1841/* initialise a loop structure, must be zero-initialised */
1560static void noinline 1842static void noinline ecb_cold
1561loop_init (EV_P_ unsigned int flags) 1843loop_init (EV_P_ unsigned int flags)
1562{ 1844{
1563 if (!backend) 1845 if (!backend)
1564 { 1846 {
1847 origflags = flags;
1848
1565#if EV_USE_REALTIME 1849#if EV_USE_REALTIME
1566 if (!have_realtime) 1850 if (!have_realtime)
1567 { 1851 {
1568 struct timespec ts; 1852 struct timespec ts;
1569 1853
… …
1591 if (!(flags & EVFLAG_NOENV) 1875 if (!(flags & EVFLAG_NOENV)
1592 && !enable_secure () 1876 && !enable_secure ()
1593 && getenv ("LIBEV_FLAGS")) 1877 && getenv ("LIBEV_FLAGS"))
1594 flags = atoi (getenv ("LIBEV_FLAGS")); 1878 flags = atoi (getenv ("LIBEV_FLAGS"));
1595 1879
1596 ev_rt_now = ev_time (); 1880 ev_rt_now = ev_time ();
1597 mn_now = get_clock (); 1881 mn_now = get_clock ();
1598 now_floor = mn_now; 1882 now_floor = mn_now;
1599 rtmn_diff = ev_rt_now - mn_now; 1883 rtmn_diff = ev_rt_now - mn_now;
1600#if EV_MINIMAL < 2 1884#if EV_FEATURE_API
1601 invoke_cb = ev_invoke_pending; 1885 invoke_cb = ev_invoke_pending;
1602#endif 1886#endif
1603 1887
1604 io_blocktime = 0.; 1888 io_blocktime = 0.;
1605 timeout_blocktime = 0.; 1889 timeout_blocktime = 0.;
1606 backend = 0; 1890 backend = 0;
1607 backend_fd = -1; 1891 backend_fd = -1;
1608 sig_pending = 0; 1892 sig_pending = 0;
1609#if EV_ASYNC_ENABLE 1893#if EV_ASYNC_ENABLE
1610 async_pending = 0; 1894 async_pending = 0;
1611#endif 1895#endif
1896 pipe_write_skipped = 0;
1897 pipe_write_wanted = 0;
1612#if EV_USE_INOTIFY 1898#if EV_USE_INOTIFY
1613 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1899 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1614#endif 1900#endif
1615#if EV_USE_SIGNALFD 1901#if EV_USE_SIGNALFD
1616 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1902 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1617#endif 1903#endif
1618 1904
1619 if (!(flags & 0x0000ffffU)) 1905 if (!(flags & EVBACKEND_MASK))
1620 flags |= ev_recommended_backends (); 1906 flags |= ev_recommended_backends ();
1621 1907
1908#if EV_USE_IOCP
1909 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1910#endif
1622#if EV_USE_PORT 1911#if EV_USE_PORT
1623 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1912 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1624#endif 1913#endif
1625#if EV_USE_KQUEUE 1914#if EV_USE_KQUEUE
1626 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1915 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1635 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1924 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1636#endif 1925#endif
1637 1926
1638 ev_prepare_init (&pending_w, pendingcb); 1927 ev_prepare_init (&pending_w, pendingcb);
1639 1928
1929#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1640 ev_init (&pipe_w, pipecb); 1930 ev_init (&pipe_w, pipecb);
1641 ev_set_priority (&pipe_w, EV_MAXPRI); 1931 ev_set_priority (&pipe_w, EV_MAXPRI);
1932#endif
1642 } 1933 }
1643} 1934}
1644 1935
1645/* free up a loop structure */ 1936/* free up a loop structure */
1646static void noinline 1937void ecb_cold
1647loop_destroy (EV_P) 1938ev_loop_destroy (EV_P)
1648{ 1939{
1649 int i; 1940 int i;
1941
1942#if EV_MULTIPLICITY
1943 /* mimic free (0) */
1944 if (!EV_A)
1945 return;
1946#endif
1947
1948#if EV_CLEANUP_ENABLE
1949 /* queue cleanup watchers (and execute them) */
1950 if (expect_false (cleanupcnt))
1951 {
1952 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1953 EV_INVOKE_PENDING;
1954 }
1955#endif
1956
1957#if EV_CHILD_ENABLE
1958 if (ev_is_active (&childev))
1959 {
1960 ev_ref (EV_A); /* child watcher */
1961 ev_signal_stop (EV_A_ &childev);
1962 }
1963#endif
1650 1964
1651 if (ev_is_active (&pipe_w)) 1965 if (ev_is_active (&pipe_w))
1652 { 1966 {
1653 /*ev_ref (EV_A);*/ 1967 /*ev_ref (EV_A);*/
1654 /*ev_io_stop (EV_A_ &pipe_w);*/ 1968 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1676#endif 1990#endif
1677 1991
1678 if (backend_fd >= 0) 1992 if (backend_fd >= 0)
1679 close (backend_fd); 1993 close (backend_fd);
1680 1994
1995#if EV_USE_IOCP
1996 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1997#endif
1681#if EV_USE_PORT 1998#if EV_USE_PORT
1682 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1999 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1683#endif 2000#endif
1684#if EV_USE_KQUEUE 2001#if EV_USE_KQUEUE
1685 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2002 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1712 array_free (periodic, EMPTY); 2029 array_free (periodic, EMPTY);
1713#endif 2030#endif
1714#if EV_FORK_ENABLE 2031#if EV_FORK_ENABLE
1715 array_free (fork, EMPTY); 2032 array_free (fork, EMPTY);
1716#endif 2033#endif
2034#if EV_CLEANUP_ENABLE
2035 array_free (cleanup, EMPTY);
2036#endif
1717 array_free (prepare, EMPTY); 2037 array_free (prepare, EMPTY);
1718 array_free (check, EMPTY); 2038 array_free (check, EMPTY);
1719#if EV_ASYNC_ENABLE 2039#if EV_ASYNC_ENABLE
1720 array_free (async, EMPTY); 2040 array_free (async, EMPTY);
1721#endif 2041#endif
1722 2042
1723 backend = 0; 2043 backend = 0;
2044
2045#if EV_MULTIPLICITY
2046 if (ev_is_default_loop (EV_A))
2047#endif
2048 ev_default_loop_ptr = 0;
2049#if EV_MULTIPLICITY
2050 else
2051 ev_free (EV_A);
2052#endif
1724} 2053}
1725 2054
1726#if EV_USE_INOTIFY 2055#if EV_USE_INOTIFY
1727inline_size void infy_fork (EV_P); 2056inline_size void infy_fork (EV_P);
1728#endif 2057#endif
… …
1743 infy_fork (EV_A); 2072 infy_fork (EV_A);
1744#endif 2073#endif
1745 2074
1746 if (ev_is_active (&pipe_w)) 2075 if (ev_is_active (&pipe_w))
1747 { 2076 {
1748 /* this "locks" the handlers against writing to the pipe */ 2077 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1749 /* while we modify the fd vars */
1750 sig_pending = 1;
1751#if EV_ASYNC_ENABLE
1752 async_pending = 1;
1753#endif
1754 2078
1755 ev_ref (EV_A); 2079 ev_ref (EV_A);
1756 ev_io_stop (EV_A_ &pipe_w); 2080 ev_io_stop (EV_A_ &pipe_w);
1757 2081
1758#if EV_USE_EVENTFD 2082#if EV_USE_EVENTFD
… …
1764 { 2088 {
1765 EV_WIN32_CLOSE_FD (evpipe [0]); 2089 EV_WIN32_CLOSE_FD (evpipe [0]);
1766 EV_WIN32_CLOSE_FD (evpipe [1]); 2090 EV_WIN32_CLOSE_FD (evpipe [1]);
1767 } 2091 }
1768 2092
2093#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1769 evpipe_init (EV_A); 2094 evpipe_init (EV_A);
1770 /* now iterate over everything, in case we missed something */ 2095 /* now iterate over everything, in case we missed something */
1771 pipecb (EV_A_ &pipe_w, EV_READ); 2096 pipecb (EV_A_ &pipe_w, EV_READ);
2097#endif
1772 } 2098 }
1773 2099
1774 postfork = 0; 2100 postfork = 0;
1775} 2101}
1776 2102
1777#if EV_MULTIPLICITY 2103#if EV_MULTIPLICITY
1778 2104
1779struct ev_loop * 2105struct ev_loop * ecb_cold
1780ev_loop_new (unsigned int flags) 2106ev_loop_new (unsigned int flags)
1781{ 2107{
1782 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2108 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1783 2109
1784 memset (EV_A, 0, sizeof (struct ev_loop)); 2110 memset (EV_A, 0, sizeof (struct ev_loop));
1785 loop_init (EV_A_ flags); 2111 loop_init (EV_A_ flags);
1786 2112
1787 if (ev_backend (EV_A)) 2113 if (ev_backend (EV_A))
1788 return EV_A; 2114 return EV_A;
1789 2115
2116 ev_free (EV_A);
1790 return 0; 2117 return 0;
1791} 2118}
1792 2119
1793void
1794ev_loop_destroy (EV_P)
1795{
1796 loop_destroy (EV_A);
1797 ev_free (loop);
1798}
1799
1800void
1801ev_loop_fork (EV_P)
1802{
1803 postfork = 1; /* must be in line with ev_default_fork */
1804}
1805#endif /* multiplicity */ 2120#endif /* multiplicity */
1806 2121
1807#if EV_VERIFY 2122#if EV_VERIFY
1808static void noinline 2123static void noinline ecb_cold
1809verify_watcher (EV_P_ W w) 2124verify_watcher (EV_P_ W w)
1810{ 2125{
1811 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2126 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1812 2127
1813 if (w->pending) 2128 if (w->pending)
1814 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2129 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1815} 2130}
1816 2131
1817static void noinline 2132static void noinline ecb_cold
1818verify_heap (EV_P_ ANHE *heap, int N) 2133verify_heap (EV_P_ ANHE *heap, int N)
1819{ 2134{
1820 int i; 2135 int i;
1821 2136
1822 for (i = HEAP0; i < N + HEAP0; ++i) 2137 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1827 2142
1828 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2143 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1829 } 2144 }
1830} 2145}
1831 2146
1832static void noinline 2147static void noinline ecb_cold
1833array_verify (EV_P_ W *ws, int cnt) 2148array_verify (EV_P_ W *ws, int cnt)
1834{ 2149{
1835 while (cnt--) 2150 while (cnt--)
1836 { 2151 {
1837 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2152 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1838 verify_watcher (EV_A_ ws [cnt]); 2153 verify_watcher (EV_A_ ws [cnt]);
1839 } 2154 }
1840} 2155}
1841#endif 2156#endif
1842 2157
1843#if EV_MINIMAL < 2 2158#if EV_FEATURE_API
1844void 2159void ecb_cold
1845ev_loop_verify (EV_P) 2160ev_verify (EV_P)
1846{ 2161{
1847#if EV_VERIFY 2162#if EV_VERIFY
1848 int i; 2163 int i;
1849 WL w; 2164 WL w;
1850 2165
… …
1884#if EV_FORK_ENABLE 2199#if EV_FORK_ENABLE
1885 assert (forkmax >= forkcnt); 2200 assert (forkmax >= forkcnt);
1886 array_verify (EV_A_ (W *)forks, forkcnt); 2201 array_verify (EV_A_ (W *)forks, forkcnt);
1887#endif 2202#endif
1888 2203
2204#if EV_CLEANUP_ENABLE
2205 assert (cleanupmax >= cleanupcnt);
2206 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2207#endif
2208
1889#if EV_ASYNC_ENABLE 2209#if EV_ASYNC_ENABLE
1890 assert (asyncmax >= asynccnt); 2210 assert (asyncmax >= asynccnt);
1891 array_verify (EV_A_ (W *)asyncs, asynccnt); 2211 array_verify (EV_A_ (W *)asyncs, asynccnt);
1892#endif 2212#endif
1893 2213
2214#if EV_PREPARE_ENABLE
1894 assert (preparemax >= preparecnt); 2215 assert (preparemax >= preparecnt);
1895 array_verify (EV_A_ (W *)prepares, preparecnt); 2216 array_verify (EV_A_ (W *)prepares, preparecnt);
2217#endif
1896 2218
2219#if EV_CHECK_ENABLE
1897 assert (checkmax >= checkcnt); 2220 assert (checkmax >= checkcnt);
1898 array_verify (EV_A_ (W *)checks, checkcnt); 2221 array_verify (EV_A_ (W *)checks, checkcnt);
2222#endif
1899 2223
1900# if 0 2224# if 0
2225#if EV_CHILD_ENABLE
1901 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2226 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1902 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2227 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2228#endif
1903# endif 2229# endif
1904#endif 2230#endif
1905} 2231}
1906#endif 2232#endif
1907 2233
1908#if EV_MULTIPLICITY 2234#if EV_MULTIPLICITY
1909struct ev_loop * 2235struct ev_loop * ecb_cold
1910ev_default_loop_init (unsigned int flags)
1911#else 2236#else
1912int 2237int
2238#endif
1913ev_default_loop (unsigned int flags) 2239ev_default_loop (unsigned int flags)
1914#endif
1915{ 2240{
1916 if (!ev_default_loop_ptr) 2241 if (!ev_default_loop_ptr)
1917 { 2242 {
1918#if EV_MULTIPLICITY 2243#if EV_MULTIPLICITY
1919 EV_P = ev_default_loop_ptr = &default_loop_struct; 2244 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1923 2248
1924 loop_init (EV_A_ flags); 2249 loop_init (EV_A_ flags);
1925 2250
1926 if (ev_backend (EV_A)) 2251 if (ev_backend (EV_A))
1927 { 2252 {
1928#ifndef _WIN32 2253#if EV_CHILD_ENABLE
1929 ev_signal_init (&childev, childcb, SIGCHLD); 2254 ev_signal_init (&childev, childcb, SIGCHLD);
1930 ev_set_priority (&childev, EV_MAXPRI); 2255 ev_set_priority (&childev, EV_MAXPRI);
1931 ev_signal_start (EV_A_ &childev); 2256 ev_signal_start (EV_A_ &childev);
1932 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2257 ev_unref (EV_A); /* child watcher should not keep loop alive */
1933#endif 2258#endif
… …
1938 2263
1939 return ev_default_loop_ptr; 2264 return ev_default_loop_ptr;
1940} 2265}
1941 2266
1942void 2267void
1943ev_default_destroy (void) 2268ev_loop_fork (EV_P)
1944{ 2269{
1945#if EV_MULTIPLICITY
1946 EV_P = ev_default_loop_ptr;
1947#endif
1948
1949 ev_default_loop_ptr = 0;
1950
1951#ifndef _WIN32
1952 ev_ref (EV_A); /* child watcher */
1953 ev_signal_stop (EV_A_ &childev);
1954#endif
1955
1956 loop_destroy (EV_A);
1957}
1958
1959void
1960ev_default_fork (void)
1961{
1962#if EV_MULTIPLICITY
1963 EV_P = ev_default_loop_ptr;
1964#endif
1965
1966 postfork = 1; /* must be in line with ev_loop_fork */ 2270 postfork = 1; /* must be in line with ev_default_fork */
1967} 2271}
1968 2272
1969/*****************************************************************************/ 2273/*****************************************************************************/
1970 2274
1971void 2275void
… …
1993 2297
1994 for (pri = NUMPRI; pri--; ) 2298 for (pri = NUMPRI; pri--; )
1995 while (pendingcnt [pri]) 2299 while (pendingcnt [pri])
1996 { 2300 {
1997 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2301 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1998
1999 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2000 /* ^ this is no longer true, as pending_w could be here */
2001 2302
2002 p->w->pending = 0; 2303 p->w->pending = 0;
2003 EV_CB_INVOKE (p->w, p->events); 2304 EV_CB_INVOKE (p->w, p->events);
2004 EV_FREQUENT_CHECK; 2305 EV_FREQUENT_CHECK;
2005 } 2306 }
… …
2062 EV_FREQUENT_CHECK; 2363 EV_FREQUENT_CHECK;
2063 feed_reverse (EV_A_ (W)w); 2364 feed_reverse (EV_A_ (W)w);
2064 } 2365 }
2065 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2366 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2066 2367
2067 feed_reverse_done (EV_A_ EV_TIMEOUT); 2368 feed_reverse_done (EV_A_ EV_TIMER);
2068 } 2369 }
2069} 2370}
2070 2371
2071#if EV_PERIODIC_ENABLE 2372#if EV_PERIODIC_ENABLE
2373
2374static void noinline
2375periodic_recalc (EV_P_ ev_periodic *w)
2376{
2377 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2378 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2379
2380 /* the above almost always errs on the low side */
2381 while (at <= ev_rt_now)
2382 {
2383 ev_tstamp nat = at + w->interval;
2384
2385 /* when resolution fails us, we use ev_rt_now */
2386 if (expect_false (nat == at))
2387 {
2388 at = ev_rt_now;
2389 break;
2390 }
2391
2392 at = nat;
2393 }
2394
2395 ev_at (w) = at;
2396}
2397
2072/* make periodics pending */ 2398/* make periodics pending */
2073inline_size void 2399inline_size void
2074periodics_reify (EV_P) 2400periodics_reify (EV_P)
2075{ 2401{
2076 EV_FREQUENT_CHECK; 2402 EV_FREQUENT_CHECK;
… …
2095 ANHE_at_cache (periodics [HEAP0]); 2421 ANHE_at_cache (periodics [HEAP0]);
2096 downheap (periodics, periodiccnt, HEAP0); 2422 downheap (periodics, periodiccnt, HEAP0);
2097 } 2423 }
2098 else if (w->interval) 2424 else if (w->interval)
2099 { 2425 {
2100 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2426 periodic_recalc (EV_A_ w);
2101 /* if next trigger time is not sufficiently in the future, put it there */
2102 /* this might happen because of floating point inexactness */
2103 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2104 {
2105 ev_at (w) += w->interval;
2106
2107 /* if interval is unreasonably low we might still have a time in the past */
2108 /* so correct this. this will make the periodic very inexact, but the user */
2109 /* has effectively asked to get triggered more often than possible */
2110 if (ev_at (w) < ev_rt_now)
2111 ev_at (w) = ev_rt_now;
2112 }
2113
2114 ANHE_at_cache (periodics [HEAP0]); 2427 ANHE_at_cache (periodics [HEAP0]);
2115 downheap (periodics, periodiccnt, HEAP0); 2428 downheap (periodics, periodiccnt, HEAP0);
2116 } 2429 }
2117 else 2430 else
2118 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2431 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2125 feed_reverse_done (EV_A_ EV_PERIODIC); 2438 feed_reverse_done (EV_A_ EV_PERIODIC);
2126 } 2439 }
2127} 2440}
2128 2441
2129/* simply recalculate all periodics */ 2442/* simply recalculate all periodics */
2130/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2443/* TODO: maybe ensure that at least one event happens when jumping forward? */
2131static void noinline 2444static void noinline ecb_cold
2132periodics_reschedule (EV_P) 2445periodics_reschedule (EV_P)
2133{ 2446{
2134 int i; 2447 int i;
2135 2448
2136 /* adjust periodics after time jump */ 2449 /* adjust periodics after time jump */
… …
2139 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2452 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2140 2453
2141 if (w->reschedule_cb) 2454 if (w->reschedule_cb)
2142 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2455 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2143 else if (w->interval) 2456 else if (w->interval)
2144 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2457 periodic_recalc (EV_A_ w);
2145 2458
2146 ANHE_at_cache (periodics [i]); 2459 ANHE_at_cache (periodics [i]);
2147 } 2460 }
2148 2461
2149 reheap (periodics, periodiccnt); 2462 reheap (periodics, periodiccnt);
2150} 2463}
2151#endif 2464#endif
2152 2465
2153/* adjust all timers by a given offset */ 2466/* adjust all timers by a given offset */
2154static void noinline 2467static void noinline ecb_cold
2155timers_reschedule (EV_P_ ev_tstamp adjust) 2468timers_reschedule (EV_P_ ev_tstamp adjust)
2156{ 2469{
2157 int i; 2470 int i;
2158 2471
2159 for (i = 0; i < timercnt; ++i) 2472 for (i = 0; i < timercnt; ++i)
… …
2196 * doesn't hurt either as we only do this on time-jumps or 2509 * doesn't hurt either as we only do this on time-jumps or
2197 * in the unlikely event of having been preempted here. 2510 * in the unlikely event of having been preempted here.
2198 */ 2511 */
2199 for (i = 4; --i; ) 2512 for (i = 4; --i; )
2200 { 2513 {
2514 ev_tstamp diff;
2201 rtmn_diff = ev_rt_now - mn_now; 2515 rtmn_diff = ev_rt_now - mn_now;
2202 2516
2517 diff = odiff - rtmn_diff;
2518
2203 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2519 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2204 return; /* all is well */ 2520 return; /* all is well */
2205 2521
2206 ev_rt_now = ev_time (); 2522 ev_rt_now = ev_time ();
2207 mn_now = get_clock (); 2523 mn_now = get_clock ();
2208 now_floor = mn_now; 2524 now_floor = mn_now;
… …
2231 mn_now = ev_rt_now; 2547 mn_now = ev_rt_now;
2232 } 2548 }
2233} 2549}
2234 2550
2235void 2551void
2236ev_loop (EV_P_ int flags) 2552ev_run (EV_P_ int flags)
2237{ 2553{
2238#if EV_MINIMAL < 2 2554#if EV_FEATURE_API
2239 ++loop_depth; 2555 ++loop_depth;
2240#endif 2556#endif
2241 2557
2242 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2558 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2243 2559
2244 loop_done = EVUNLOOP_CANCEL; 2560 loop_done = EVBREAK_CANCEL;
2245 2561
2246 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2562 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2247 2563
2248 do 2564 do
2249 { 2565 {
2250#if EV_VERIFY >= 2 2566#if EV_VERIFY >= 2
2251 ev_loop_verify (EV_A); 2567 ev_verify (EV_A);
2252#endif 2568#endif
2253 2569
2254#ifndef _WIN32 2570#ifndef _WIN32
2255 if (expect_false (curpid)) /* penalise the forking check even more */ 2571 if (expect_false (curpid)) /* penalise the forking check even more */
2256 if (expect_false (getpid () != curpid)) 2572 if (expect_false (getpid () != curpid))
… …
2268 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2584 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2269 EV_INVOKE_PENDING; 2585 EV_INVOKE_PENDING;
2270 } 2586 }
2271#endif 2587#endif
2272 2588
2589#if EV_PREPARE_ENABLE
2273 /* queue prepare watchers (and execute them) */ 2590 /* queue prepare watchers (and execute them) */
2274 if (expect_false (preparecnt)) 2591 if (expect_false (preparecnt))
2275 { 2592 {
2276 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2593 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2277 EV_INVOKE_PENDING; 2594 EV_INVOKE_PENDING;
2278 } 2595 }
2596#endif
2279 2597
2280 if (expect_false (loop_done)) 2598 if (expect_false (loop_done))
2281 break; 2599 break;
2282 2600
2283 /* we might have forked, so reify kernel state if necessary */ 2601 /* we might have forked, so reify kernel state if necessary */
… …
2290 /* calculate blocking time */ 2608 /* calculate blocking time */
2291 { 2609 {
2292 ev_tstamp waittime = 0.; 2610 ev_tstamp waittime = 0.;
2293 ev_tstamp sleeptime = 0.; 2611 ev_tstamp sleeptime = 0.;
2294 2612
2613 /* remember old timestamp for io_blocktime calculation */
2614 ev_tstamp prev_mn_now = mn_now;
2615
2616 /* update time to cancel out callback processing overhead */
2617 time_update (EV_A_ 1e100);
2618
2619 /* from now on, we want a pipe-wake-up */
2620 pipe_write_wanted = 1;
2621
2622 ECB_MEMORY_FENCE; /* amke sure pipe_write_wanted is visible before we check for potential skips */
2623
2295 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2624 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2296 { 2625 {
2297 /* remember old timestamp for io_blocktime calculation */
2298 ev_tstamp prev_mn_now = mn_now;
2299
2300 /* update time to cancel out callback processing overhead */
2301 time_update (EV_A_ 1e100);
2302
2303 waittime = MAX_BLOCKTIME; 2626 waittime = MAX_BLOCKTIME;
2304 2627
2305 if (timercnt) 2628 if (timercnt)
2306 { 2629 {
2307 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2630 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2308 if (waittime > to) waittime = to; 2631 if (waittime > to) waittime = to;
2309 } 2632 }
2310 2633
2311#if EV_PERIODIC_ENABLE 2634#if EV_PERIODIC_ENABLE
2312 if (periodiccnt) 2635 if (periodiccnt)
2313 { 2636 {
2314 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2637 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2315 if (waittime > to) waittime = to; 2638 if (waittime > to) waittime = to;
2316 } 2639 }
2317#endif 2640#endif
2318 2641
2319 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2642 /* don't let timeouts decrease the waittime below timeout_blocktime */
2320 if (expect_false (waittime < timeout_blocktime)) 2643 if (expect_false (waittime < timeout_blocktime))
2321 waittime = timeout_blocktime; 2644 waittime = timeout_blocktime;
2645
2646 /* at this point, we NEED to wait, so we have to ensure */
2647 /* to pass a minimum nonzero value to the backend */
2648 if (expect_false (waittime < backend_mintime))
2649 waittime = backend_mintime;
2322 2650
2323 /* extra check because io_blocktime is commonly 0 */ 2651 /* extra check because io_blocktime is commonly 0 */
2324 if (expect_false (io_blocktime)) 2652 if (expect_false (io_blocktime))
2325 { 2653 {
2326 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2654 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2327 2655
2328 if (sleeptime > waittime - backend_fudge) 2656 if (sleeptime > waittime - backend_mintime)
2329 sleeptime = waittime - backend_fudge; 2657 sleeptime = waittime - backend_mintime;
2330 2658
2331 if (expect_true (sleeptime > 0.)) 2659 if (expect_true (sleeptime > 0.))
2332 { 2660 {
2333 ev_sleep (sleeptime); 2661 ev_sleep (sleeptime);
2334 waittime -= sleeptime; 2662 waittime -= sleeptime;
2335 } 2663 }
2336 } 2664 }
2337 } 2665 }
2338 2666
2339#if EV_MINIMAL < 2 2667#if EV_FEATURE_API
2340 ++loop_count; 2668 ++loop_count;
2341#endif 2669#endif
2342 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2670 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2343 backend_poll (EV_A_ waittime); 2671 backend_poll (EV_A_ waittime);
2344 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2672 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2673
2674 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2675
2676 if (pipe_write_skipped)
2677 {
2678 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2679 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2680 }
2681
2345 2682
2346 /* update ev_rt_now, do magic */ 2683 /* update ev_rt_now, do magic */
2347 time_update (EV_A_ waittime + sleeptime); 2684 time_update (EV_A_ waittime + sleeptime);
2348 } 2685 }
2349 2686
… …
2356#if EV_IDLE_ENABLE 2693#if EV_IDLE_ENABLE
2357 /* queue idle watchers unless other events are pending */ 2694 /* queue idle watchers unless other events are pending */
2358 idle_reify (EV_A); 2695 idle_reify (EV_A);
2359#endif 2696#endif
2360 2697
2698#if EV_CHECK_ENABLE
2361 /* queue check watchers, to be executed first */ 2699 /* queue check watchers, to be executed first */
2362 if (expect_false (checkcnt)) 2700 if (expect_false (checkcnt))
2363 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2701 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2702#endif
2364 2703
2365 EV_INVOKE_PENDING; 2704 EV_INVOKE_PENDING;
2366 } 2705 }
2367 while (expect_true ( 2706 while (expect_true (
2368 activecnt 2707 activecnt
2369 && !loop_done 2708 && !loop_done
2370 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2709 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2371 )); 2710 ));
2372 2711
2373 if (loop_done == EVUNLOOP_ONE) 2712 if (loop_done == EVBREAK_ONE)
2374 loop_done = EVUNLOOP_CANCEL; 2713 loop_done = EVBREAK_CANCEL;
2375 2714
2376#if EV_MINIMAL < 2 2715#if EV_FEATURE_API
2377 --loop_depth; 2716 --loop_depth;
2378#endif 2717#endif
2379} 2718}
2380 2719
2381void 2720void
2382ev_unloop (EV_P_ int how) 2721ev_break (EV_P_ int how)
2383{ 2722{
2384 loop_done = how; 2723 loop_done = how;
2385} 2724}
2386 2725
2387void 2726void
… …
2507 2846
2508 if (expect_false (ev_is_active (w))) 2847 if (expect_false (ev_is_active (w)))
2509 return; 2848 return;
2510 2849
2511 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2850 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2512 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2851 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2513 2852
2514 EV_FREQUENT_CHECK; 2853 EV_FREQUENT_CHECK;
2515 2854
2516 ev_start (EV_A_ (W)w, 1); 2855 ev_start (EV_A_ (W)w, 1);
2517 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2856 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2535 EV_FREQUENT_CHECK; 2874 EV_FREQUENT_CHECK;
2536 2875
2537 wlist_del (&anfds[w->fd].head, (WL)w); 2876 wlist_del (&anfds[w->fd].head, (WL)w);
2538 ev_stop (EV_A_ (W)w); 2877 ev_stop (EV_A_ (W)w);
2539 2878
2540 fd_change (EV_A_ w->fd, 1); 2879 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2541 2880
2542 EV_FREQUENT_CHECK; 2881 EV_FREQUENT_CHECK;
2543} 2882}
2544 2883
2545void noinline 2884void noinline
… …
2587 timers [active] = timers [timercnt + HEAP0]; 2926 timers [active] = timers [timercnt + HEAP0];
2588 adjustheap (timers, timercnt, active); 2927 adjustheap (timers, timercnt, active);
2589 } 2928 }
2590 } 2929 }
2591 2930
2592 EV_FREQUENT_CHECK;
2593
2594 ev_at (w) -= mn_now; 2931 ev_at (w) -= mn_now;
2595 2932
2596 ev_stop (EV_A_ (W)w); 2933 ev_stop (EV_A_ (W)w);
2934
2935 EV_FREQUENT_CHECK;
2597} 2936}
2598 2937
2599void noinline 2938void noinline
2600ev_timer_again (EV_P_ ev_timer *w) 2939ev_timer_again (EV_P_ ev_timer *w)
2601{ 2940{
… …
2637 if (w->reschedule_cb) 2976 if (w->reschedule_cb)
2638 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2977 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2639 else if (w->interval) 2978 else if (w->interval)
2640 { 2979 {
2641 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2980 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2642 /* this formula differs from the one in periodic_reify because we do not always round up */ 2981 periodic_recalc (EV_A_ w);
2643 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2644 } 2982 }
2645 else 2983 else
2646 ev_at (w) = w->offset; 2984 ev_at (w) = w->offset;
2647 2985
2648 EV_FREQUENT_CHECK; 2986 EV_FREQUENT_CHECK;
… …
2680 periodics [active] = periodics [periodiccnt + HEAP0]; 3018 periodics [active] = periodics [periodiccnt + HEAP0];
2681 adjustheap (periodics, periodiccnt, active); 3019 adjustheap (periodics, periodiccnt, active);
2682 } 3020 }
2683 } 3021 }
2684 3022
2685 EV_FREQUENT_CHECK;
2686
2687 ev_stop (EV_A_ (W)w); 3023 ev_stop (EV_A_ (W)w);
3024
3025 EV_FREQUENT_CHECK;
2688} 3026}
2689 3027
2690void noinline 3028void noinline
2691ev_periodic_again (EV_P_ ev_periodic *w) 3029ev_periodic_again (EV_P_ ev_periodic *w)
2692{ 3030{
… …
2697#endif 3035#endif
2698 3036
2699#ifndef SA_RESTART 3037#ifndef SA_RESTART
2700# define SA_RESTART 0 3038# define SA_RESTART 0
2701#endif 3039#endif
3040
3041#if EV_SIGNAL_ENABLE
2702 3042
2703void noinline 3043void noinline
2704ev_signal_start (EV_P_ ev_signal *w) 3044ev_signal_start (EV_P_ ev_signal *w)
2705{ 3045{
2706 if (expect_false (ev_is_active (w))) 3046 if (expect_false (ev_is_active (w)))
… …
2767 sa.sa_handler = ev_sighandler; 3107 sa.sa_handler = ev_sighandler;
2768 sigfillset (&sa.sa_mask); 3108 sigfillset (&sa.sa_mask);
2769 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3109 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2770 sigaction (w->signum, &sa, 0); 3110 sigaction (w->signum, &sa, 0);
2771 3111
3112 if (origflags & EVFLAG_NOSIGMASK)
3113 {
2772 sigemptyset (&sa.sa_mask); 3114 sigemptyset (&sa.sa_mask);
2773 sigaddset (&sa.sa_mask, w->signum); 3115 sigaddset (&sa.sa_mask, w->signum);
2774 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3116 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3117 }
2775#endif 3118#endif
2776 } 3119 }
2777 3120
2778 EV_FREQUENT_CHECK; 3121 EV_FREQUENT_CHECK;
2779} 3122}
… …
2813 } 3156 }
2814 3157
2815 EV_FREQUENT_CHECK; 3158 EV_FREQUENT_CHECK;
2816} 3159}
2817 3160
3161#endif
3162
3163#if EV_CHILD_ENABLE
3164
2818void 3165void
2819ev_child_start (EV_P_ ev_child *w) 3166ev_child_start (EV_P_ ev_child *w)
2820{ 3167{
2821#if EV_MULTIPLICITY 3168#if EV_MULTIPLICITY
2822 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3169 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2825 return; 3172 return;
2826 3173
2827 EV_FREQUENT_CHECK; 3174 EV_FREQUENT_CHECK;
2828 3175
2829 ev_start (EV_A_ (W)w, 1); 3176 ev_start (EV_A_ (W)w, 1);
2830 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3177 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2831 3178
2832 EV_FREQUENT_CHECK; 3179 EV_FREQUENT_CHECK;
2833} 3180}
2834 3181
2835void 3182void
… …
2839 if (expect_false (!ev_is_active (w))) 3186 if (expect_false (!ev_is_active (w)))
2840 return; 3187 return;
2841 3188
2842 EV_FREQUENT_CHECK; 3189 EV_FREQUENT_CHECK;
2843 3190
2844 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3191 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845 ev_stop (EV_A_ (W)w); 3192 ev_stop (EV_A_ (W)w);
2846 3193
2847 EV_FREQUENT_CHECK; 3194 EV_FREQUENT_CHECK;
2848} 3195}
3196
3197#endif
2849 3198
2850#if EV_STAT_ENABLE 3199#if EV_STAT_ENABLE
2851 3200
2852# ifdef _WIN32 3201# ifdef _WIN32
2853# undef lstat 3202# undef lstat
… …
2859#define MIN_STAT_INTERVAL 0.1074891 3208#define MIN_STAT_INTERVAL 0.1074891
2860 3209
2861static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3210static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2862 3211
2863#if EV_USE_INOTIFY 3212#if EV_USE_INOTIFY
2864# define EV_INOTIFY_BUFSIZE 8192 3213
3214/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3215# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2865 3216
2866static void noinline 3217static void noinline
2867infy_add (EV_P_ ev_stat *w) 3218infy_add (EV_P_ ev_stat *w)
2868{ 3219{
2869 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3220 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
… …
2912 if (!pend || pend == path) 3263 if (!pend || pend == path)
2913 break; 3264 break;
2914 3265
2915 *pend = 0; 3266 *pend = 0;
2916 w->wd = inotify_add_watch (fs_fd, path, mask); 3267 w->wd = inotify_add_watch (fs_fd, path, mask);
2917 } 3268 }
2918 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3269 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2919 } 3270 }
2920 } 3271 }
2921 3272
2922 if (w->wd >= 0) 3273 if (w->wd >= 0)
2923 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3274 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2924 3275
2925 /* now re-arm timer, if required */ 3276 /* now re-arm timer, if required */
2926 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3277 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2927 ev_timer_again (EV_A_ &w->timer); 3278 ev_timer_again (EV_A_ &w->timer);
2928 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3279 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2936 3287
2937 if (wd < 0) 3288 if (wd < 0)
2938 return; 3289 return;
2939 3290
2940 w->wd = -2; 3291 w->wd = -2;
2941 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3292 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2942 wlist_del (&fs_hash [slot].head, (WL)w); 3293 wlist_del (&fs_hash [slot].head, (WL)w);
2943 3294
2944 /* remove this watcher, if others are watching it, they will rearm */ 3295 /* remove this watcher, if others are watching it, they will rearm */
2945 inotify_rm_watch (fs_fd, wd); 3296 inotify_rm_watch (fs_fd, wd);
2946} 3297}
… …
2948static void noinline 3299static void noinline
2949infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3300infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2950{ 3301{
2951 if (slot < 0) 3302 if (slot < 0)
2952 /* overflow, need to check for all hash slots */ 3303 /* overflow, need to check for all hash slots */
2953 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3304 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2954 infy_wd (EV_A_ slot, wd, ev); 3305 infy_wd (EV_A_ slot, wd, ev);
2955 else 3306 else
2956 { 3307 {
2957 WL w_; 3308 WL w_;
2958 3309
2959 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3310 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2960 { 3311 {
2961 ev_stat *w = (ev_stat *)w_; 3312 ev_stat *w = (ev_stat *)w_;
2962 w_ = w_->next; /* lets us remove this watcher and all before it */ 3313 w_ = w_->next; /* lets us remove this watcher and all before it */
2963 3314
2964 if (w->wd == wd || wd == -1) 3315 if (w->wd == wd || wd == -1)
2965 { 3316 {
2966 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3317 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2967 { 3318 {
2968 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3319 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2969 w->wd = -1; 3320 w->wd = -1;
2970 infy_add (EV_A_ w); /* re-add, no matter what */ 3321 infy_add (EV_A_ w); /* re-add, no matter what */
2971 } 3322 }
2972 3323
2973 stat_timer_cb (EV_A_ &w->timer, 0); 3324 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2978 3329
2979static void 3330static void
2980infy_cb (EV_P_ ev_io *w, int revents) 3331infy_cb (EV_P_ ev_io *w, int revents)
2981{ 3332{
2982 char buf [EV_INOTIFY_BUFSIZE]; 3333 char buf [EV_INOTIFY_BUFSIZE];
2983 struct inotify_event *ev = (struct inotify_event *)buf;
2984 int ofs; 3334 int ofs;
2985 int len = read (fs_fd, buf, sizeof (buf)); 3335 int len = read (fs_fd, buf, sizeof (buf));
2986 3336
2987 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3337 for (ofs = 0; ofs < len; )
3338 {
3339 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2988 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3340 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3341 ofs += sizeof (struct inotify_event) + ev->len;
3342 }
2989} 3343}
2990 3344
2991inline_size void 3345inline_size void ecb_cold
2992check_2625 (EV_P) 3346ev_check_2625 (EV_P)
2993{ 3347{
2994 /* kernels < 2.6.25 are borked 3348 /* kernels < 2.6.25 are borked
2995 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3349 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2996 */ 3350 */
2997 struct utsname buf; 3351 if (ev_linux_version () < 0x020619)
2998 int major, minor, micro;
2999
3000 if (uname (&buf))
3001 return;
3002
3003 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
3004 return;
3005
3006 if (major < 2
3007 || (major == 2 && minor < 6)
3008 || (major == 2 && minor == 6 && micro < 25))
3009 return; 3352 return;
3010 3353
3011 fs_2625 = 1; 3354 fs_2625 = 1;
3012} 3355}
3013 3356
… …
3028 if (fs_fd != -2) 3371 if (fs_fd != -2)
3029 return; 3372 return;
3030 3373
3031 fs_fd = -1; 3374 fs_fd = -1;
3032 3375
3033 check_2625 (EV_A); 3376 ev_check_2625 (EV_A);
3034 3377
3035 fs_fd = infy_newfd (); 3378 fs_fd = infy_newfd ();
3036 3379
3037 if (fs_fd >= 0) 3380 if (fs_fd >= 0)
3038 { 3381 {
… …
3063 ev_io_set (&fs_w, fs_fd, EV_READ); 3406 ev_io_set (&fs_w, fs_fd, EV_READ);
3064 ev_io_start (EV_A_ &fs_w); 3407 ev_io_start (EV_A_ &fs_w);
3065 ev_unref (EV_A); 3408 ev_unref (EV_A);
3066 } 3409 }
3067 3410
3068 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3411 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3069 { 3412 {
3070 WL w_ = fs_hash [slot].head; 3413 WL w_ = fs_hash [slot].head;
3071 fs_hash [slot].head = 0; 3414 fs_hash [slot].head = 0;
3072 3415
3073 while (w_) 3416 while (w_)
… …
3248 3591
3249 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
3250} 3593}
3251#endif 3594#endif
3252 3595
3596#if EV_PREPARE_ENABLE
3253void 3597void
3254ev_prepare_start (EV_P_ ev_prepare *w) 3598ev_prepare_start (EV_P_ ev_prepare *w)
3255{ 3599{
3256 if (expect_false (ev_is_active (w))) 3600 if (expect_false (ev_is_active (w)))
3257 return; 3601 return;
… …
3283 3627
3284 ev_stop (EV_A_ (W)w); 3628 ev_stop (EV_A_ (W)w);
3285 3629
3286 EV_FREQUENT_CHECK; 3630 EV_FREQUENT_CHECK;
3287} 3631}
3632#endif
3288 3633
3634#if EV_CHECK_ENABLE
3289void 3635void
3290ev_check_start (EV_P_ ev_check *w) 3636ev_check_start (EV_P_ ev_check *w)
3291{ 3637{
3292 if (expect_false (ev_is_active (w))) 3638 if (expect_false (ev_is_active (w)))
3293 return; 3639 return;
… …
3319 3665
3320 ev_stop (EV_A_ (W)w); 3666 ev_stop (EV_A_ (W)w);
3321 3667
3322 EV_FREQUENT_CHECK; 3668 EV_FREQUENT_CHECK;
3323} 3669}
3670#endif
3324 3671
3325#if EV_EMBED_ENABLE 3672#if EV_EMBED_ENABLE
3326void noinline 3673void noinline
3327ev_embed_sweep (EV_P_ ev_embed *w) 3674ev_embed_sweep (EV_P_ ev_embed *w)
3328{ 3675{
3329 ev_loop (w->other, EVLOOP_NONBLOCK); 3676 ev_run (w->other, EVRUN_NOWAIT);
3330} 3677}
3331 3678
3332static void 3679static void
3333embed_io_cb (EV_P_ ev_io *io, int revents) 3680embed_io_cb (EV_P_ ev_io *io, int revents)
3334{ 3681{
3335 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3682 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3336 3683
3337 if (ev_cb (w)) 3684 if (ev_cb (w))
3338 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3685 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3339 else 3686 else
3340 ev_loop (w->other, EVLOOP_NONBLOCK); 3687 ev_run (w->other, EVRUN_NOWAIT);
3341} 3688}
3342 3689
3343static void 3690static void
3344embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3691embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3345{ 3692{
… …
3349 EV_P = w->other; 3696 EV_P = w->other;
3350 3697
3351 while (fdchangecnt) 3698 while (fdchangecnt)
3352 { 3699 {
3353 fd_reify (EV_A); 3700 fd_reify (EV_A);
3354 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3701 ev_run (EV_A_ EVRUN_NOWAIT);
3355 } 3702 }
3356 } 3703 }
3357} 3704}
3358 3705
3359static void 3706static void
… …
3365 3712
3366 { 3713 {
3367 EV_P = w->other; 3714 EV_P = w->other;
3368 3715
3369 ev_loop_fork (EV_A); 3716 ev_loop_fork (EV_A);
3370 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3717 ev_run (EV_A_ EVRUN_NOWAIT);
3371 } 3718 }
3372 3719
3373 ev_embed_start (EV_A_ w); 3720 ev_embed_start (EV_A_ w);
3374} 3721}
3375 3722
… …
3423 3770
3424 ev_io_stop (EV_A_ &w->io); 3771 ev_io_stop (EV_A_ &w->io);
3425 ev_prepare_stop (EV_A_ &w->prepare); 3772 ev_prepare_stop (EV_A_ &w->prepare);
3426 ev_fork_stop (EV_A_ &w->fork); 3773 ev_fork_stop (EV_A_ &w->fork);
3427 3774
3775 ev_stop (EV_A_ (W)w);
3776
3428 EV_FREQUENT_CHECK; 3777 EV_FREQUENT_CHECK;
3429} 3778}
3430#endif 3779#endif
3431 3780
3432#if EV_FORK_ENABLE 3781#if EV_FORK_ENABLE
… …
3465 3814
3466 EV_FREQUENT_CHECK; 3815 EV_FREQUENT_CHECK;
3467} 3816}
3468#endif 3817#endif
3469 3818
3819#if EV_CLEANUP_ENABLE
3820void
3821ev_cleanup_start (EV_P_ ev_cleanup *w)
3822{
3823 if (expect_false (ev_is_active (w)))
3824 return;
3825
3826 EV_FREQUENT_CHECK;
3827
3828 ev_start (EV_A_ (W)w, ++cleanupcnt);
3829 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3830 cleanups [cleanupcnt - 1] = w;
3831
3832 /* cleanup watchers should never keep a refcount on the loop */
3833 ev_unref (EV_A);
3834 EV_FREQUENT_CHECK;
3835}
3836
3837void
3838ev_cleanup_stop (EV_P_ ev_cleanup *w)
3839{
3840 clear_pending (EV_A_ (W)w);
3841 if (expect_false (!ev_is_active (w)))
3842 return;
3843
3844 EV_FREQUENT_CHECK;
3845 ev_ref (EV_A);
3846
3847 {
3848 int active = ev_active (w);
3849
3850 cleanups [active - 1] = cleanups [--cleanupcnt];
3851 ev_active (cleanups [active - 1]) = active;
3852 }
3853
3854 ev_stop (EV_A_ (W)w);
3855
3856 EV_FREQUENT_CHECK;
3857}
3858#endif
3859
3470#if EV_ASYNC_ENABLE 3860#if EV_ASYNC_ENABLE
3471void 3861void
3472ev_async_start (EV_P_ ev_async *w) 3862ev_async_start (EV_P_ ev_async *w)
3473{ 3863{
3474 if (expect_false (ev_is_active (w))) 3864 if (expect_false (ev_is_active (w)))
3475 return; 3865 return;
3866
3867 w->sent = 0;
3476 3868
3477 evpipe_init (EV_A); 3869 evpipe_init (EV_A);
3478 3870
3479 EV_FREQUENT_CHECK; 3871 EV_FREQUENT_CHECK;
3480 3872
… …
3558{ 3950{
3559 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3951 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3560 3952
3561 if (expect_false (!once)) 3953 if (expect_false (!once))
3562 { 3954 {
3563 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3955 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3564 return; 3956 return;
3565 } 3957 }
3566 3958
3567 once->cb = cb; 3959 once->cb = cb;
3568 once->arg = arg; 3960 once->arg = arg;
… …
3583} 3975}
3584 3976
3585/*****************************************************************************/ 3977/*****************************************************************************/
3586 3978
3587#if EV_WALK_ENABLE 3979#if EV_WALK_ENABLE
3588void 3980void ecb_cold
3589ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3981ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3590{ 3982{
3591 int i, j; 3983 int i, j;
3592 ev_watcher_list *wl, *wn; 3984 ev_watcher_list *wl, *wn;
3593 3985
… …
3655 if (types & EV_ASYNC) 4047 if (types & EV_ASYNC)
3656 for (i = asynccnt; i--; ) 4048 for (i = asynccnt; i--; )
3657 cb (EV_A_ EV_ASYNC, asyncs [i]); 4049 cb (EV_A_ EV_ASYNC, asyncs [i]);
3658#endif 4050#endif
3659 4051
4052#if EV_PREPARE_ENABLE
3660 if (types & EV_PREPARE) 4053 if (types & EV_PREPARE)
3661 for (i = preparecnt; i--; ) 4054 for (i = preparecnt; i--; )
3662#if EV_EMBED_ENABLE 4055# if EV_EMBED_ENABLE
3663 if (ev_cb (prepares [i]) != embed_prepare_cb) 4056 if (ev_cb (prepares [i]) != embed_prepare_cb)
3664#endif 4057# endif
3665 cb (EV_A_ EV_PREPARE, prepares [i]); 4058 cb (EV_A_ EV_PREPARE, prepares [i]);
4059#endif
3666 4060
4061#if EV_CHECK_ENABLE
3667 if (types & EV_CHECK) 4062 if (types & EV_CHECK)
3668 for (i = checkcnt; i--; ) 4063 for (i = checkcnt; i--; )
3669 cb (EV_A_ EV_CHECK, checks [i]); 4064 cb (EV_A_ EV_CHECK, checks [i]);
4065#endif
3670 4066
4067#if EV_SIGNAL_ENABLE
3671 if (types & EV_SIGNAL) 4068 if (types & EV_SIGNAL)
3672 for (i = 0; i < EV_NSIG - 1; ++i) 4069 for (i = 0; i < EV_NSIG - 1; ++i)
3673 for (wl = signals [i].head; wl; ) 4070 for (wl = signals [i].head; wl; )
3674 { 4071 {
3675 wn = wl->next; 4072 wn = wl->next;
3676 cb (EV_A_ EV_SIGNAL, wl); 4073 cb (EV_A_ EV_SIGNAL, wl);
3677 wl = wn; 4074 wl = wn;
3678 } 4075 }
4076#endif
3679 4077
4078#if EV_CHILD_ENABLE
3680 if (types & EV_CHILD) 4079 if (types & EV_CHILD)
3681 for (i = EV_PID_HASHSIZE; i--; ) 4080 for (i = (EV_PID_HASHSIZE); i--; )
3682 for (wl = childs [i]; wl; ) 4081 for (wl = childs [i]; wl; )
3683 { 4082 {
3684 wn = wl->next; 4083 wn = wl->next;
3685 cb (EV_A_ EV_CHILD, wl); 4084 cb (EV_A_ EV_CHILD, wl);
3686 wl = wn; 4085 wl = wn;
3687 } 4086 }
4087#endif
3688/* EV_STAT 0x00001000 /* stat data changed */ 4088/* EV_STAT 0x00001000 /* stat data changed */
3689/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4089/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3690} 4090}
3691#endif 4091#endif
3692 4092
3693#if EV_MULTIPLICITY 4093#if EV_MULTIPLICITY
3694 #include "ev_wrap.h" 4094 #include "ev_wrap.h"
3695#endif 4095#endif
3696 4096
3697#ifdef __cplusplus 4097EV_CPP(})
3698}
3699#endif
3700 4098

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