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Comparing libev/ev.c (file contents):
Revision 1.322 by root, Thu Jan 7 06:49:31 2010 UTC vs.
Revision 1.387 by root, Wed Jul 20 01:04:43 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
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
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
… …
344# endif 363# endif
345#endif 364#endif
346 365
347/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 366/* this block fixes any misconfiguration where we know we run into trouble otherwise */
348 367
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
349#ifndef CLOCK_MONOTONIC 374#ifndef CLOCK_MONOTONIC
350# undef EV_USE_MONOTONIC 375# undef EV_USE_MONOTONIC
351# define EV_USE_MONOTONIC 0 376# define EV_USE_MONOTONIC 0
352#endif 377#endif
353 378
… …
360# undef EV_USE_INOTIFY 385# undef EV_USE_INOTIFY
361# define EV_USE_INOTIFY 0 386# define EV_USE_INOTIFY 0
362#endif 387#endif
363 388
364#if !EV_USE_NANOSLEEP 389#if !EV_USE_NANOSLEEP
365# ifndef _WIN32 390/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux)
366# include <sys/select.h> 392# include <sys/select.h>
367# endif 393# endif
368#endif 394#endif
369 395
370#if EV_USE_INOTIFY 396#if EV_USE_INOTIFY
371# include <sys/utsname.h>
372# include <sys/statfs.h> 397# include <sys/statfs.h>
373# include <sys/inotify.h> 398# include <sys/inotify.h>
374/* 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 */
375# ifndef IN_DONT_FOLLOW 400# ifndef IN_DONT_FOLLOW
376# undef EV_USE_INOTIFY 401# undef EV_USE_INOTIFY
… …
393# define EFD_CLOEXEC O_CLOEXEC 418# define EFD_CLOEXEC O_CLOEXEC
394# else 419# else
395# define EFD_CLOEXEC 02000000 420# define EFD_CLOEXEC 02000000
396# endif 421# endif
397# endif 422# endif
398# ifdef __cplusplus
399extern "C" {
400# endif
401int eventfd (unsigned int initval, int flags); 423EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
402# ifdef __cplusplus
403}
404# endif
405#endif 424#endif
406 425
407#if EV_USE_SIGNALFD 426#if EV_USE_SIGNALFD
408/* 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 */
409# include <stdint.h> 428# include <stdint.h>
… …
415# define SFD_CLOEXEC O_CLOEXEC 434# define SFD_CLOEXEC O_CLOEXEC
416# else 435# else
417# define SFD_CLOEXEC 02000000 436# define SFD_CLOEXEC 02000000
418# endif 437# endif
419# endif 438# endif
420# ifdef __cplusplus
421extern "C" {
422# endif
423int signalfd (int fd, const sigset_t *mask, int flags); 439EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
424 440
425struct signalfd_siginfo 441struct signalfd_siginfo
426{ 442{
427 uint32_t ssi_signo; 443 uint32_t ssi_signo;
428 char pad[128 - sizeof (uint32_t)]; 444 char pad[128 - sizeof (uint32_t)];
429}; 445};
430# ifdef __cplusplus
431}
432# endif 446#endif
433#endif
434
435 447
436/**/ 448/**/
437 449
438#if EV_VERIFY >= 3 450#if EV_VERIFY >= 3
439# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 451# define EV_FREQUENT_CHECK ev_verify (EV_A)
440#else 452#else
441# define EV_FREQUENT_CHECK do { } while (0) 453# define EV_FREQUENT_CHECK do { } while (0)
442#endif 454#endif
443 455
444/* 456/*
445 * This is used to avoid floating point rounding problems. 457 * This is used to work around floating point rounding problems.
446 * It is added to ev_rt_now when scheduling periodics
447 * to ensure progress, time-wise, even when rounding
448 * errors are against us.
449 * This value is good at least till the year 4000. 458 * This value is good at least till the year 4000.
450 * Better solutions welcome.
451 */ 459 */
452#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 */
453 462
454#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) */
455#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) */
456 465
457#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)
458# 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)
459# 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
460#else 493#else
461# define expect(expr,value) (expr) 494 #define ecb_inline static
462# define noinline
463# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
464# define inline
465# 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
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
466#endif 508 #endif
509#endif
467 510
511#ifndef ECB_MEMORY_FENCE
512 #if ECB_GCC_VERSION(4,4)
513 #define ECB_MEMORY_FENCE __sync_synchronize ()
514 #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
515 #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
516 #elif defined(_WIN32) && defined(MemoryBarrier)
517 #define ECB_MEMORY_FENCE MemoryBarrier ()
518 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
519 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
520 #endif
521#endif
522
523#ifndef ECB_MEMORY_FENCE
524 #include <pthread.h>
525
526 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
527 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
528 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
529 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
530#endif
531
532#if ECB_GCC_VERSION(3,1)
533 #define ecb_attribute(attrlist) __attribute__(attrlist)
534 #define ecb_is_constant(expr) __builtin_constant_p (expr)
535 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
536 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
537#else
538 #define ecb_attribute(attrlist)
539 #define ecb_is_constant(expr) 0
540 #define ecb_expect(expr,value) (expr)
541 #define ecb_prefetch(addr,rw,locality)
542#endif
543
544#define ecb_noinline ecb_attribute ((__noinline__))
545#define ecb_noreturn ecb_attribute ((__noreturn__))
546#define ecb_unused ecb_attribute ((__unused__))
547#define ecb_const ecb_attribute ((__const__))
548#define ecb_pure ecb_attribute ((__pure__))
549
550#if ECB_GCC_VERSION(4,3)
551 #define ecb_artificial ecb_attribute ((__artificial__))
552 #define ecb_hot ecb_attribute ((__hot__))
553 #define ecb_cold ecb_attribute ((__cold__))
554#else
555 #define ecb_artificial
556 #define ecb_hot
557 #define ecb_cold
558#endif
559
560/* put around conditional expressions if you are very sure that the */
561/* expression is mostly true or mostly false. note that these return */
562/* booleans, not the expression. */
468#define expect_false(expr) expect ((expr) != 0, 0) 563#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
469#define expect_true(expr) expect ((expr) != 0, 1) 564#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
565/* ecb.h end */
566
567#define expect_false(cond) ecb_expect_false (cond)
568#define expect_true(cond) ecb_expect_true (cond)
569#define noinline ecb_noinline
570
470#define inline_size static inline 571#define inline_size ecb_inline
471 572
472#if EV_MINIMAL 573#if EV_FEATURE_CODE
574# define inline_speed ecb_inline
575#else
473# define inline_speed static noinline 576# define inline_speed static noinline
474#else
475# define inline_speed static inline
476#endif 577#endif
477 578
478#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 579#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
479 580
480#if EV_MINPRI == EV_MAXPRI 581#if EV_MINPRI == EV_MAXPRI
… …
493#define ev_active(w) ((W)(w))->active 594#define ev_active(w) ((W)(w))->active
494#define ev_at(w) ((WT)(w))->at 595#define ev_at(w) ((WT)(w))->at
495 596
496#if EV_USE_REALTIME 597#if EV_USE_REALTIME
497/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 598/* sig_atomic_t is used to avoid per-thread variables or locking but still */
498/* giving it a reasonably high chance of working on typical architetcures */ 599/* giving it a reasonably high chance of working on typical architectures */
499static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 600static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
500#endif 601#endif
501 602
502#if EV_USE_MONOTONIC 603#if EV_USE_MONOTONIC
503static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 604static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
517# include "ev_win32.c" 618# include "ev_win32.c"
518#endif 619#endif
519 620
520/*****************************************************************************/ 621/*****************************************************************************/
521 622
623/* define a suitable floor function (only used by periodics atm) */
624
625#if EV_USE_FLOOR
626# include <math.h>
627# define ev_floor(v) floor (v)
628#else
629
630#include <float.h>
631
632/* a floor() replacement function, should be independent of ev_tstamp type */
633static ev_tstamp noinline
634ev_floor (ev_tstamp v)
635{
636 /* the choice of shift factor is not terribly important */
637#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
638 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
639#else
640 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
641#endif
642
643 /* argument too large for an unsigned long? */
644 if (expect_false (v >= shift))
645 {
646 ev_tstamp f;
647
648 if (v == v - 1.)
649 return v; /* very large number */
650
651 f = shift * ev_floor (v * (1. / shift));
652 return f + ev_floor (v - f);
653 }
654
655 /* special treatment for negative args? */
656 if (expect_false (v < 0.))
657 {
658 ev_tstamp f = -ev_floor (-v);
659
660 return f - (f == v ? 0 : 1);
661 }
662
663 /* fits into an unsigned long */
664 return (unsigned long)v;
665}
666
667#endif
668
669/*****************************************************************************/
670
671#ifdef __linux
672# include <sys/utsname.h>
673#endif
674
675static unsigned int noinline ecb_cold
676ev_linux_version (void)
677{
678#ifdef __linux
679 unsigned int v = 0;
680 struct utsname buf;
681 int i;
682 char *p = buf.release;
683
684 if (uname (&buf))
685 return 0;
686
687 for (i = 3+1; --i; )
688 {
689 unsigned int c = 0;
690
691 for (;;)
692 {
693 if (*p >= '0' && *p <= '9')
694 c = c * 10 + *p++ - '0';
695 else
696 {
697 p += *p == '.';
698 break;
699 }
700 }
701
702 v = (v << 8) | c;
703 }
704
705 return v;
706#else
707 return 0;
708#endif
709}
710
711/*****************************************************************************/
712
713#if EV_AVOID_STDIO
714static void noinline ecb_cold
715ev_printerr (const char *msg)
716{
717 write (STDERR_FILENO, msg, strlen (msg));
718}
719#endif
720
522static void (*syserr_cb)(const char *msg); 721static void (*syserr_cb)(const char *msg);
523 722
524void 723void ecb_cold
525ev_set_syserr_cb (void (*cb)(const char *msg)) 724ev_set_syserr_cb (void (*cb)(const char *msg))
526{ 725{
527 syserr_cb = cb; 726 syserr_cb = cb;
528} 727}
529 728
530static void noinline 729static void noinline ecb_cold
531ev_syserr (const char *msg) 730ev_syserr (const char *msg)
532{ 731{
533 if (!msg) 732 if (!msg)
534 msg = "(libev) system error"; 733 msg = "(libev) system error";
535 734
536 if (syserr_cb) 735 if (syserr_cb)
537 syserr_cb (msg); 736 syserr_cb (msg);
538 else 737 else
539 { 738 {
739#if EV_AVOID_STDIO
740 ev_printerr (msg);
741 ev_printerr (": ");
742 ev_printerr (strerror (errno));
743 ev_printerr ("\n");
744#else
540 perror (msg); 745 perror (msg);
746#endif
541 abort (); 747 abort ();
542 } 748 }
543} 749}
544 750
545static void * 751static void *
546ev_realloc_emul (void *ptr, long size) 752ev_realloc_emul (void *ptr, long size)
547{ 753{
754#if __GLIBC__
755 return realloc (ptr, size);
756#else
548 /* some systems, notably openbsd and darwin, fail to properly 757 /* some systems, notably openbsd and darwin, fail to properly
549 * implement realloc (x, 0) (as required by both ansi c-98 and 758 * implement realloc (x, 0) (as required by both ansi c-89 and
550 * the single unix specification, so work around them here. 759 * the single unix specification, so work around them here.
551 */ 760 */
552 761
553 if (size) 762 if (size)
554 return realloc (ptr, size); 763 return realloc (ptr, size);
555 764
556 free (ptr); 765 free (ptr);
557 return 0; 766 return 0;
767#endif
558} 768}
559 769
560static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 770static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
561 771
562void 772void ecb_cold
563ev_set_allocator (void *(*cb)(void *ptr, long size)) 773ev_set_allocator (void *(*cb)(void *ptr, long size))
564{ 774{
565 alloc = cb; 775 alloc = cb;
566} 776}
567 777
… …
570{ 780{
571 ptr = alloc (ptr, size); 781 ptr = alloc (ptr, size);
572 782
573 if (!ptr && size) 783 if (!ptr && size)
574 { 784 {
785#if EV_AVOID_STDIO
786 ev_printerr ("(libev) memory allocation failed, aborting.\n");
787#else
575 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 788 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
789#endif
576 abort (); 790 abort ();
577 } 791 }
578 792
579 return ptr; 793 return ptr;
580} 794}
… …
596 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 810 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
597 unsigned char unused; 811 unsigned char unused;
598#if EV_USE_EPOLL 812#if EV_USE_EPOLL
599 unsigned int egen; /* generation counter to counter epoll bugs */ 813 unsigned int egen; /* generation counter to counter epoll bugs */
600#endif 814#endif
601#if EV_SELECT_IS_WINSOCKET 815#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
602 SOCKET handle; 816 SOCKET handle;
817#endif
818#if EV_USE_IOCP
819 OVERLAPPED or, ow;
603#endif 820#endif
604} ANFD; 821} ANFD;
605 822
606/* stores the pending event set for a given watcher */ 823/* stores the pending event set for a given watcher */
607typedef struct 824typedef struct
… …
662 879
663 static int ev_default_loop_ptr; 880 static int ev_default_loop_ptr;
664 881
665#endif 882#endif
666 883
667#if EV_MINIMAL < 2 884#if EV_FEATURE_API
668# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 885# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
669# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 886# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
670# define EV_INVOKE_PENDING invoke_cb (EV_A) 887# define EV_INVOKE_PENDING invoke_cb (EV_A)
671#else 888#else
672# define EV_RELEASE_CB (void)0 889# define EV_RELEASE_CB (void)0
673# define EV_ACQUIRE_CB (void)0 890# define EV_ACQUIRE_CB (void)0
674# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 891# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
675#endif 892#endif
676 893
677#define EVUNLOOP_RECURSE 0x80 894#define EVBREAK_RECURSE 0x80
678 895
679/*****************************************************************************/ 896/*****************************************************************************/
680 897
681#ifndef EV_HAVE_EV_TIME 898#ifndef EV_HAVE_EV_TIME
682ev_tstamp 899ev_tstamp
… …
726 if (delay > 0.) 943 if (delay > 0.)
727 { 944 {
728#if EV_USE_NANOSLEEP 945#if EV_USE_NANOSLEEP
729 struct timespec ts; 946 struct timespec ts;
730 947
731 ts.tv_sec = (time_t)delay; 948 EV_TS_SET (ts, delay);
732 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
733
734 nanosleep (&ts, 0); 949 nanosleep (&ts, 0);
735#elif defined(_WIN32) 950#elif defined(_WIN32)
736 Sleep ((unsigned long)(delay * 1e3)); 951 Sleep ((unsigned long)(delay * 1e3));
737#else 952#else
738 struct timeval tv; 953 struct timeval tv;
739 954
740 tv.tv_sec = (time_t)delay;
741 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
742
743 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 955 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
744 /* something not guaranteed by newer posix versions, but guaranteed */ 956 /* something not guaranteed by newer posix versions, but guaranteed */
745 /* by older ones */ 957 /* by older ones */
958 EV_TV_SET (tv, delay);
746 select (0, 0, 0, 0, &tv); 959 select (0, 0, 0, 0, &tv);
747#endif 960#endif
748 } 961 }
749} 962}
750 963
751/*****************************************************************************/ 964/*****************************************************************************/
752 965
753#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 966#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
754 967
755/* find a suitable new size for the given array, */ 968/* find a suitable new size for the given array, */
756/* hopefully by rounding to a ncie-to-malloc size */ 969/* hopefully by rounding to a nice-to-malloc size */
757inline_size int 970inline_size int
758array_nextsize (int elem, int cur, int cnt) 971array_nextsize (int elem, int cur, int cnt)
759{ 972{
760 int ncur = cur + 1; 973 int ncur = cur + 1;
761 974
… …
773 } 986 }
774 987
775 return ncur; 988 return ncur;
776} 989}
777 990
778static noinline void * 991static void * noinline ecb_cold
779array_realloc (int elem, void *base, int *cur, int cnt) 992array_realloc (int elem, void *base, int *cur, int cnt)
780{ 993{
781 *cur = array_nextsize (elem, *cur, cnt); 994 *cur = array_nextsize (elem, *cur, cnt);
782 return ev_realloc (base, elem * *cur); 995 return ev_realloc (base, elem * *cur);
783} 996}
… …
786 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 999 memset ((void *)(base), 0, sizeof (*(base)) * (count))
787 1000
788#define array_needsize(type,base,cur,cnt,init) \ 1001#define array_needsize(type,base,cur,cnt,init) \
789 if (expect_false ((cnt) > (cur))) \ 1002 if (expect_false ((cnt) > (cur))) \
790 { \ 1003 { \
791 int ocur_ = (cur); \ 1004 int ecb_unused ocur_ = (cur); \
792 (base) = (type *)array_realloc \ 1005 (base) = (type *)array_realloc \
793 (sizeof (type), (base), &(cur), (cnt)); \ 1006 (sizeof (type), (base), &(cur), (cnt)); \
794 init ((base) + (ocur_), (cur) - ocur_); \ 1007 init ((base) + (ocur_), (cur) - ocur_); \
795 } 1008 }
796 1009
… …
857} 1070}
858 1071
859/*****************************************************************************/ 1072/*****************************************************************************/
860 1073
861inline_speed void 1074inline_speed void
862fd_event_nc (EV_P_ int fd, int revents) 1075fd_event_nocheck (EV_P_ int fd, int revents)
863{ 1076{
864 ANFD *anfd = anfds + fd; 1077 ANFD *anfd = anfds + fd;
865 ev_io *w; 1078 ev_io *w;
866 1079
867 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1080 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
879fd_event (EV_P_ int fd, int revents) 1092fd_event (EV_P_ int fd, int revents)
880{ 1093{
881 ANFD *anfd = anfds + fd; 1094 ANFD *anfd = anfds + fd;
882 1095
883 if (expect_true (!anfd->reify)) 1096 if (expect_true (!anfd->reify))
884 fd_event_nc (EV_A_ fd, revents); 1097 fd_event_nocheck (EV_A_ fd, revents);
885} 1098}
886 1099
887void 1100void
888ev_feed_fd_event (EV_P_ int fd, int revents) 1101ev_feed_fd_event (EV_P_ int fd, int revents)
889{ 1102{
890 if (fd >= 0 && fd < anfdmax) 1103 if (fd >= 0 && fd < anfdmax)
891 fd_event_nc (EV_A_ fd, revents); 1104 fd_event_nocheck (EV_A_ fd, revents);
892} 1105}
893 1106
894/* make sure the external fd watch events are in-sync */ 1107/* make sure the external fd watch events are in-sync */
895/* with the kernel/libev internal state */ 1108/* with the kernel/libev internal state */
896inline_size void 1109inline_size void
897fd_reify (EV_P) 1110fd_reify (EV_P)
898{ 1111{
899 int i; 1112 int i;
900 1113
1114#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1115 for (i = 0; i < fdchangecnt; ++i)
1116 {
1117 int fd = fdchanges [i];
1118 ANFD *anfd = anfds + fd;
1119
1120 if (anfd->reify & EV__IOFDSET && anfd->head)
1121 {
1122 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1123
1124 if (handle != anfd->handle)
1125 {
1126 unsigned long arg;
1127
1128 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1129
1130 /* handle changed, but fd didn't - we need to do it in two steps */
1131 backend_modify (EV_A_ fd, anfd->events, 0);
1132 anfd->events = 0;
1133 anfd->handle = handle;
1134 }
1135 }
1136 }
1137#endif
1138
901 for (i = 0; i < fdchangecnt; ++i) 1139 for (i = 0; i < fdchangecnt; ++i)
902 { 1140 {
903 int fd = fdchanges [i]; 1141 int fd = fdchanges [i];
904 ANFD *anfd = anfds + fd; 1142 ANFD *anfd = anfds + fd;
905 ev_io *w; 1143 ev_io *w;
906 1144
907 unsigned char events = 0; 1145 unsigned char o_events = anfd->events;
1146 unsigned char o_reify = anfd->reify;
908 1147
909 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1148 anfd->reify = 0;
910 events |= (unsigned char)w->events;
911 1149
912#if EV_SELECT_IS_WINSOCKET 1150 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
913 if (events)
914 { 1151 {
915 unsigned long arg; 1152 anfd->events = 0;
916 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1153
917 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1154 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1155 anfd->events |= (unsigned char)w->events;
1156
1157 if (o_events != anfd->events)
1158 o_reify = EV__IOFDSET; /* actually |= */
918 } 1159 }
919#endif
920 1160
921 { 1161 if (o_reify & EV__IOFDSET)
922 unsigned char o_events = anfd->events;
923 unsigned char o_reify = anfd->reify;
924
925 anfd->reify = 0;
926 anfd->events = events;
927
928 if (o_events != events || o_reify & EV__IOFDSET)
929 backend_modify (EV_A_ fd, o_events, events); 1162 backend_modify (EV_A_ fd, o_events, anfd->events);
930 }
931 } 1163 }
932 1164
933 fdchangecnt = 0; 1165 fdchangecnt = 0;
934} 1166}
935 1167
… …
947 fdchanges [fdchangecnt - 1] = fd; 1179 fdchanges [fdchangecnt - 1] = fd;
948 } 1180 }
949} 1181}
950 1182
951/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1183/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
952inline_speed void 1184inline_speed void ecb_cold
953fd_kill (EV_P_ int fd) 1185fd_kill (EV_P_ int fd)
954{ 1186{
955 ev_io *w; 1187 ev_io *w;
956 1188
957 while ((w = (ev_io *)anfds [fd].head)) 1189 while ((w = (ev_io *)anfds [fd].head))
… …
959 ev_io_stop (EV_A_ w); 1191 ev_io_stop (EV_A_ w);
960 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1192 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
961 } 1193 }
962} 1194}
963 1195
964/* check whether the given fd is atcually valid, for error recovery */ 1196/* check whether the given fd is actually valid, for error recovery */
965inline_size int 1197inline_size int ecb_cold
966fd_valid (int fd) 1198fd_valid (int fd)
967{ 1199{
968#ifdef _WIN32 1200#ifdef _WIN32
969 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1201 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
970#else 1202#else
971 return fcntl (fd, F_GETFD) != -1; 1203 return fcntl (fd, F_GETFD) != -1;
972#endif 1204#endif
973} 1205}
974 1206
975/* called on EBADF to verify fds */ 1207/* called on EBADF to verify fds */
976static void noinline 1208static void noinline ecb_cold
977fd_ebadf (EV_P) 1209fd_ebadf (EV_P)
978{ 1210{
979 int fd; 1211 int fd;
980 1212
981 for (fd = 0; fd < anfdmax; ++fd) 1213 for (fd = 0; fd < anfdmax; ++fd)
… …
983 if (!fd_valid (fd) && errno == EBADF) 1215 if (!fd_valid (fd) && errno == EBADF)
984 fd_kill (EV_A_ fd); 1216 fd_kill (EV_A_ fd);
985} 1217}
986 1218
987/* called on ENOMEM in select/poll to kill some fds and retry */ 1219/* called on ENOMEM in select/poll to kill some fds and retry */
988static void noinline 1220static void noinline ecb_cold
989fd_enomem (EV_P) 1221fd_enomem (EV_P)
990{ 1222{
991 int fd; 1223 int fd;
992 1224
993 for (fd = anfdmax; fd--; ) 1225 for (fd = anfdmax; fd--; )
… …
1011 anfds [fd].emask = 0; 1243 anfds [fd].emask = 0;
1012 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1244 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1013 } 1245 }
1014} 1246}
1015 1247
1248/* used to prepare libev internal fd's */
1249/* this is not fork-safe */
1250inline_speed void
1251fd_intern (int fd)
1252{
1253#ifdef _WIN32
1254 unsigned long arg = 1;
1255 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1256#else
1257 fcntl (fd, F_SETFD, FD_CLOEXEC);
1258 fcntl (fd, F_SETFL, O_NONBLOCK);
1259#endif
1260}
1261
1016/*****************************************************************************/ 1262/*****************************************************************************/
1017 1263
1018/* 1264/*
1019 * the heap functions want a real array index. array index 0 uis guaranteed to not 1265 * the heap functions want a real array index. array index 0 is guaranteed to not
1020 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1266 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1021 * the branching factor of the d-tree. 1267 * the branching factor of the d-tree.
1022 */ 1268 */
1023 1269
1024/* 1270/*
… …
1172 1418
1173static ANSIG signals [EV_NSIG - 1]; 1419static ANSIG signals [EV_NSIG - 1];
1174 1420
1175/*****************************************************************************/ 1421/*****************************************************************************/
1176 1422
1177/* used to prepare libev internal fd's */ 1423#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1178/* this is not fork-safe */
1179inline_speed void
1180fd_intern (int fd)
1181{
1182#ifdef _WIN32
1183 unsigned long arg = 1;
1184 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1185#else
1186 fcntl (fd, F_SETFD, FD_CLOEXEC);
1187 fcntl (fd, F_SETFL, O_NONBLOCK);
1188#endif
1189}
1190 1424
1191static void noinline 1425static void noinline ecb_cold
1192evpipe_init (EV_P) 1426evpipe_init (EV_P)
1193{ 1427{
1194 if (!ev_is_active (&pipe_w)) 1428 if (!ev_is_active (&pipe_w))
1195 { 1429 {
1196#if EV_USE_EVENTFD 1430# if EV_USE_EVENTFD
1197 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1431 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1198 if (evfd < 0 && errno == EINVAL) 1432 if (evfd < 0 && errno == EINVAL)
1199 evfd = eventfd (0, 0); 1433 evfd = eventfd (0, 0);
1200 1434
1201 if (evfd >= 0) 1435 if (evfd >= 0)
… …
1203 evpipe [0] = -1; 1437 evpipe [0] = -1;
1204 fd_intern (evfd); /* doing it twice doesn't hurt */ 1438 fd_intern (evfd); /* doing it twice doesn't hurt */
1205 ev_io_set (&pipe_w, evfd, EV_READ); 1439 ev_io_set (&pipe_w, evfd, EV_READ);
1206 } 1440 }
1207 else 1441 else
1208#endif 1442# endif
1209 { 1443 {
1210 while (pipe (evpipe)) 1444 while (pipe (evpipe))
1211 ev_syserr ("(libev) error creating signal/async pipe"); 1445 ev_syserr ("(libev) error creating signal/async pipe");
1212 1446
1213 fd_intern (evpipe [0]); 1447 fd_intern (evpipe [0]);
… …
1218 ev_io_start (EV_A_ &pipe_w); 1452 ev_io_start (EV_A_ &pipe_w);
1219 ev_unref (EV_A); /* watcher should not keep loop alive */ 1453 ev_unref (EV_A); /* watcher should not keep loop alive */
1220 } 1454 }
1221} 1455}
1222 1456
1223inline_size void 1457inline_speed void
1224evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1458evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1225{ 1459{
1226 if (!*flag) 1460 if (expect_true (*flag))
1461 return;
1462
1463 *flag = 1;
1464
1465 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1466
1467 pipe_write_skipped = 1;
1468
1469 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1470
1471 if (pipe_write_wanted)
1227 { 1472 {
1473 int old_errno;
1474
1475 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1476
1228 int old_errno = errno; /* save errno because write might clobber it */ 1477 old_errno = errno; /* save errno because write will clobber it */
1229
1230 *flag = 1;
1231 1478
1232#if EV_USE_EVENTFD 1479#if EV_USE_EVENTFD
1233 if (evfd >= 0) 1480 if (evfd >= 0)
1234 { 1481 {
1235 uint64_t counter = 1; 1482 uint64_t counter = 1;
1236 write (evfd, &counter, sizeof (uint64_t)); 1483 write (evfd, &counter, sizeof (uint64_t));
1237 } 1484 }
1238 else 1485 else
1239#endif 1486#endif
1487 {
1488 /* win32 people keep sending patches that change this write() to send() */
1489 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1490 /* so when you think this write should be a send instead, please find out */
1491 /* where your send() is from - it's definitely not the microsoft send, and */
1492 /* tell me. thank you. */
1240 write (evpipe [1], &old_errno, 1); 1493 write (evpipe [1], &(evpipe [1]), 1);
1494 }
1241 1495
1242 errno = old_errno; 1496 errno = old_errno;
1243 } 1497 }
1244} 1498}
1245 1499
… …
1248static void 1502static void
1249pipecb (EV_P_ ev_io *iow, int revents) 1503pipecb (EV_P_ ev_io *iow, int revents)
1250{ 1504{
1251 int i; 1505 int i;
1252 1506
1507 if (revents & EV_READ)
1508 {
1253#if EV_USE_EVENTFD 1509#if EV_USE_EVENTFD
1254 if (evfd >= 0) 1510 if (evfd >= 0)
1255 { 1511 {
1256 uint64_t counter; 1512 uint64_t counter;
1257 read (evfd, &counter, sizeof (uint64_t)); 1513 read (evfd, &counter, sizeof (uint64_t));
1258 } 1514 }
1259 else 1515 else
1260#endif 1516#endif
1261 { 1517 {
1262 char dummy; 1518 char dummy;
1519 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1263 read (evpipe [0], &dummy, 1); 1520 read (evpipe [0], &dummy, 1);
1521 }
1264 } 1522 }
1265 1523
1524 pipe_write_skipped = 0;
1525
1526#if EV_SIGNAL_ENABLE
1266 if (sig_pending) 1527 if (sig_pending)
1267 { 1528 {
1268 sig_pending = 0; 1529 sig_pending = 0;
1269 1530
1270 for (i = EV_NSIG - 1; i--; ) 1531 for (i = EV_NSIG - 1; i--; )
1271 if (expect_false (signals [i].pending)) 1532 if (expect_false (signals [i].pending))
1272 ev_feed_signal_event (EV_A_ i + 1); 1533 ev_feed_signal_event (EV_A_ i + 1);
1273 } 1534 }
1535#endif
1274 1536
1275#if EV_ASYNC_ENABLE 1537#if EV_ASYNC_ENABLE
1276 if (async_pending) 1538 if (async_pending)
1277 { 1539 {
1278 async_pending = 0; 1540 async_pending = 0;
… …
1287#endif 1549#endif
1288} 1550}
1289 1551
1290/*****************************************************************************/ 1552/*****************************************************************************/
1291 1553
1554void
1555ev_feed_signal (int signum)
1556{
1557#if EV_MULTIPLICITY
1558 EV_P = signals [signum - 1].loop;
1559
1560 if (!EV_A)
1561 return;
1562#endif
1563
1564 if (!ev_active (&pipe_w))
1565 return;
1566
1567 signals [signum - 1].pending = 1;
1568 evpipe_write (EV_A_ &sig_pending);
1569}
1570
1292static void 1571static void
1293ev_sighandler (int signum) 1572ev_sighandler (int signum)
1294{ 1573{
1295#if EV_MULTIPLICITY
1296 EV_P = signals [signum - 1].loop;
1297#endif
1298
1299#ifdef _WIN32 1574#ifdef _WIN32
1300 signal (signum, ev_sighandler); 1575 signal (signum, ev_sighandler);
1301#endif 1576#endif
1302 1577
1303 signals [signum - 1].pending = 1; 1578 ev_feed_signal (signum);
1304 evpipe_write (EV_A_ &sig_pending);
1305} 1579}
1306 1580
1307void noinline 1581void noinline
1308ev_feed_signal_event (EV_P_ int signum) 1582ev_feed_signal_event (EV_P_ int signum)
1309{ 1583{
… …
1346 break; 1620 break;
1347 } 1621 }
1348} 1622}
1349#endif 1623#endif
1350 1624
1625#endif
1626
1351/*****************************************************************************/ 1627/*****************************************************************************/
1352 1628
1629#if EV_CHILD_ENABLE
1353static WL childs [EV_PID_HASHSIZE]; 1630static WL childs [EV_PID_HASHSIZE];
1354
1355#ifndef _WIN32
1356 1631
1357static ev_signal childev; 1632static ev_signal childev;
1358 1633
1359#ifndef WIFCONTINUED 1634#ifndef WIFCONTINUED
1360# define WIFCONTINUED(status) 0 1635# define WIFCONTINUED(status) 0
… …
1365child_reap (EV_P_ int chain, int pid, int status) 1640child_reap (EV_P_ int chain, int pid, int status)
1366{ 1641{
1367 ev_child *w; 1642 ev_child *w;
1368 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1643 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1369 1644
1370 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1645 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1371 { 1646 {
1372 if ((w->pid == pid || !w->pid) 1647 if ((w->pid == pid || !w->pid)
1373 && (!traced || (w->flags & 1))) 1648 && (!traced || (w->flags & 1)))
1374 { 1649 {
1375 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1650 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1400 /* make sure we are called again until all children have been reaped */ 1675 /* make sure we are called again until all children have been reaped */
1401 /* we need to do it this way so that the callback gets called before we continue */ 1676 /* we need to do it this way so that the callback gets called before we continue */
1402 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1677 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1403 1678
1404 child_reap (EV_A_ pid, pid, status); 1679 child_reap (EV_A_ pid, pid, status);
1405 if (EV_PID_HASHSIZE > 1) 1680 if ((EV_PID_HASHSIZE) > 1)
1406 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1681 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1407} 1682}
1408 1683
1409#endif 1684#endif
1410 1685
1411/*****************************************************************************/ 1686/*****************************************************************************/
1412 1687
1688#if EV_USE_IOCP
1689# include "ev_iocp.c"
1690#endif
1413#if EV_USE_PORT 1691#if EV_USE_PORT
1414# include "ev_port.c" 1692# include "ev_port.c"
1415#endif 1693#endif
1416#if EV_USE_KQUEUE 1694#if EV_USE_KQUEUE
1417# include "ev_kqueue.c" 1695# include "ev_kqueue.c"
… …
1424#endif 1702#endif
1425#if EV_USE_SELECT 1703#if EV_USE_SELECT
1426# include "ev_select.c" 1704# include "ev_select.c"
1427#endif 1705#endif
1428 1706
1429int 1707int ecb_cold
1430ev_version_major (void) 1708ev_version_major (void)
1431{ 1709{
1432 return EV_VERSION_MAJOR; 1710 return EV_VERSION_MAJOR;
1433} 1711}
1434 1712
1435int 1713int ecb_cold
1436ev_version_minor (void) 1714ev_version_minor (void)
1437{ 1715{
1438 return EV_VERSION_MINOR; 1716 return EV_VERSION_MINOR;
1439} 1717}
1440 1718
1441/* return true if we are running with elevated privileges and should ignore env variables */ 1719/* return true if we are running with elevated privileges and should ignore env variables */
1442int inline_size 1720int inline_size ecb_cold
1443enable_secure (void) 1721enable_secure (void)
1444{ 1722{
1445#ifdef _WIN32 1723#ifdef _WIN32
1446 return 0; 1724 return 0;
1447#else 1725#else
1448 return getuid () != geteuid () 1726 return getuid () != geteuid ()
1449 || getgid () != getegid (); 1727 || getgid () != getegid ();
1450#endif 1728#endif
1451} 1729}
1452 1730
1453unsigned int 1731unsigned int ecb_cold
1454ev_supported_backends (void) 1732ev_supported_backends (void)
1455{ 1733{
1456 unsigned int flags = 0; 1734 unsigned int flags = 0;
1457 1735
1458 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1736 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1462 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1740 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1463 1741
1464 return flags; 1742 return flags;
1465} 1743}
1466 1744
1467unsigned int 1745unsigned int ecb_cold
1468ev_recommended_backends (void) 1746ev_recommended_backends (void)
1469{ 1747{
1470 unsigned int flags = ev_supported_backends (); 1748 unsigned int flags = ev_supported_backends ();
1471 1749
1472#ifndef __NetBSD__ 1750#ifndef __NetBSD__
… …
1477#ifdef __APPLE__ 1755#ifdef __APPLE__
1478 /* only select works correctly on that "unix-certified" platform */ 1756 /* only select works correctly on that "unix-certified" platform */
1479 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1757 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1480 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1758 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1481#endif 1759#endif
1760#ifdef __FreeBSD__
1761 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1762#endif
1482 1763
1483 return flags; 1764 return flags;
1484} 1765}
1485 1766
1486unsigned int 1767unsigned int ecb_cold
1487ev_embeddable_backends (void) 1768ev_embeddable_backends (void)
1488{ 1769{
1489 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1770 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1490 1771
1491 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1772 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1492 /* please fix it and tell me how to detect the fix */ 1773 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1493 flags &= ~EVBACKEND_EPOLL; 1774 flags &= ~EVBACKEND_EPOLL;
1494 1775
1495 return flags; 1776 return flags;
1496} 1777}
1497 1778
1498unsigned int 1779unsigned int
1499ev_backend (EV_P) 1780ev_backend (EV_P)
1500{ 1781{
1501 return backend; 1782 return backend;
1502} 1783}
1503 1784
1504#if EV_MINIMAL < 2 1785#if EV_FEATURE_API
1505unsigned int 1786unsigned int
1506ev_loop_count (EV_P) 1787ev_iteration (EV_P)
1507{ 1788{
1508 return loop_count; 1789 return loop_count;
1509} 1790}
1510 1791
1511unsigned int 1792unsigned int
1512ev_loop_depth (EV_P) 1793ev_depth (EV_P)
1513{ 1794{
1514 return loop_depth; 1795 return loop_depth;
1515} 1796}
1516 1797
1517void 1798void
… …
1536ev_userdata (EV_P) 1817ev_userdata (EV_P)
1537{ 1818{
1538 return userdata; 1819 return userdata;
1539} 1820}
1540 1821
1822void
1541void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 1823ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1542{ 1824{
1543 invoke_cb = invoke_pending_cb; 1825 invoke_cb = invoke_pending_cb;
1544} 1826}
1545 1827
1828void
1546void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 1829ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1547{ 1830{
1548 release_cb = release; 1831 release_cb = release;
1549 acquire_cb = acquire; 1832 acquire_cb = acquire;
1550} 1833}
1551#endif 1834#endif
1552 1835
1553/* initialise a loop structure, must be zero-initialised */ 1836/* initialise a loop structure, must be zero-initialised */
1554static void noinline 1837static void noinline ecb_cold
1555loop_init (EV_P_ unsigned int flags) 1838loop_init (EV_P_ unsigned int flags)
1556{ 1839{
1557 if (!backend) 1840 if (!backend)
1558 { 1841 {
1842 origflags = flags;
1843
1559#if EV_USE_REALTIME 1844#if EV_USE_REALTIME
1560 if (!have_realtime) 1845 if (!have_realtime)
1561 { 1846 {
1562 struct timespec ts; 1847 struct timespec ts;
1563 1848
… …
1585 if (!(flags & EVFLAG_NOENV) 1870 if (!(flags & EVFLAG_NOENV)
1586 && !enable_secure () 1871 && !enable_secure ()
1587 && getenv ("LIBEV_FLAGS")) 1872 && getenv ("LIBEV_FLAGS"))
1588 flags = atoi (getenv ("LIBEV_FLAGS")); 1873 flags = atoi (getenv ("LIBEV_FLAGS"));
1589 1874
1590 ev_rt_now = ev_time (); 1875 ev_rt_now = ev_time ();
1591 mn_now = get_clock (); 1876 mn_now = get_clock ();
1592 now_floor = mn_now; 1877 now_floor = mn_now;
1593 rtmn_diff = ev_rt_now - mn_now; 1878 rtmn_diff = ev_rt_now - mn_now;
1594#if EV_MINIMAL < 2 1879#if EV_FEATURE_API
1595 invoke_cb = ev_invoke_pending; 1880 invoke_cb = ev_invoke_pending;
1596#endif 1881#endif
1597 1882
1598 io_blocktime = 0.; 1883 io_blocktime = 0.;
1599 timeout_blocktime = 0.; 1884 timeout_blocktime = 0.;
1600 backend = 0; 1885 backend = 0;
1601 backend_fd = -1; 1886 backend_fd = -1;
1602 sig_pending = 0; 1887 sig_pending = 0;
1603#if EV_ASYNC_ENABLE 1888#if EV_ASYNC_ENABLE
1604 async_pending = 0; 1889 async_pending = 0;
1605#endif 1890#endif
1891 pipe_write_skipped = 0;
1892 pipe_write_wanted = 0;
1606#if EV_USE_INOTIFY 1893#if EV_USE_INOTIFY
1607 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1894 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1608#endif 1895#endif
1609#if EV_USE_SIGNALFD 1896#if EV_USE_SIGNALFD
1610 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1897 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1611#endif 1898#endif
1612 1899
1613 if (!(flags & 0x0000ffffU)) 1900 if (!(flags & EVBACKEND_MASK))
1614 flags |= ev_recommended_backends (); 1901 flags |= ev_recommended_backends ();
1615 1902
1903#if EV_USE_IOCP
1904 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1905#endif
1616#if EV_USE_PORT 1906#if EV_USE_PORT
1617 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1907 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1618#endif 1908#endif
1619#if EV_USE_KQUEUE 1909#if EV_USE_KQUEUE
1620 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1910 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1629 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1919 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1630#endif 1920#endif
1631 1921
1632 ev_prepare_init (&pending_w, pendingcb); 1922 ev_prepare_init (&pending_w, pendingcb);
1633 1923
1924#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1634 ev_init (&pipe_w, pipecb); 1925 ev_init (&pipe_w, pipecb);
1635 ev_set_priority (&pipe_w, EV_MAXPRI); 1926 ev_set_priority (&pipe_w, EV_MAXPRI);
1927#endif
1636 } 1928 }
1637} 1929}
1638 1930
1639/* free up a loop structure */ 1931/* free up a loop structure */
1640static void noinline 1932void ecb_cold
1641loop_destroy (EV_P) 1933ev_loop_destroy (EV_P)
1642{ 1934{
1643 int i; 1935 int i;
1936
1937#if EV_MULTIPLICITY
1938 /* mimic free (0) */
1939 if (!EV_A)
1940 return;
1941#endif
1942
1943#if EV_CLEANUP_ENABLE
1944 /* queue cleanup watchers (and execute them) */
1945 if (expect_false (cleanupcnt))
1946 {
1947 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1948 EV_INVOKE_PENDING;
1949 }
1950#endif
1951
1952#if EV_CHILD_ENABLE
1953 if (ev_is_active (&childev))
1954 {
1955 ev_ref (EV_A); /* child watcher */
1956 ev_signal_stop (EV_A_ &childev);
1957 }
1958#endif
1644 1959
1645 if (ev_is_active (&pipe_w)) 1960 if (ev_is_active (&pipe_w))
1646 { 1961 {
1647 /*ev_ref (EV_A);*/ 1962 /*ev_ref (EV_A);*/
1648 /*ev_io_stop (EV_A_ &pipe_w);*/ 1963 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1670#endif 1985#endif
1671 1986
1672 if (backend_fd >= 0) 1987 if (backend_fd >= 0)
1673 close (backend_fd); 1988 close (backend_fd);
1674 1989
1990#if EV_USE_IOCP
1991 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1992#endif
1675#if EV_USE_PORT 1993#if EV_USE_PORT
1676 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1994 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1677#endif 1995#endif
1678#if EV_USE_KQUEUE 1996#if EV_USE_KQUEUE
1679 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1997 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1706 array_free (periodic, EMPTY); 2024 array_free (periodic, EMPTY);
1707#endif 2025#endif
1708#if EV_FORK_ENABLE 2026#if EV_FORK_ENABLE
1709 array_free (fork, EMPTY); 2027 array_free (fork, EMPTY);
1710#endif 2028#endif
2029#if EV_CLEANUP_ENABLE
2030 array_free (cleanup, EMPTY);
2031#endif
1711 array_free (prepare, EMPTY); 2032 array_free (prepare, EMPTY);
1712 array_free (check, EMPTY); 2033 array_free (check, EMPTY);
1713#if EV_ASYNC_ENABLE 2034#if EV_ASYNC_ENABLE
1714 array_free (async, EMPTY); 2035 array_free (async, EMPTY);
1715#endif 2036#endif
1716 2037
1717 backend = 0; 2038 backend = 0;
2039
2040#if EV_MULTIPLICITY
2041 if (ev_is_default_loop (EV_A))
2042#endif
2043 ev_default_loop_ptr = 0;
2044#if EV_MULTIPLICITY
2045 else
2046 ev_free (EV_A);
2047#endif
1718} 2048}
1719 2049
1720#if EV_USE_INOTIFY 2050#if EV_USE_INOTIFY
1721inline_size void infy_fork (EV_P); 2051inline_size void infy_fork (EV_P);
1722#endif 2052#endif
… …
1737 infy_fork (EV_A); 2067 infy_fork (EV_A);
1738#endif 2068#endif
1739 2069
1740 if (ev_is_active (&pipe_w)) 2070 if (ev_is_active (&pipe_w))
1741 { 2071 {
1742 /* this "locks" the handlers against writing to the pipe */ 2072 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1743 /* while we modify the fd vars */
1744 sig_pending = 1;
1745#if EV_ASYNC_ENABLE
1746 async_pending = 1;
1747#endif
1748 2073
1749 ev_ref (EV_A); 2074 ev_ref (EV_A);
1750 ev_io_stop (EV_A_ &pipe_w); 2075 ev_io_stop (EV_A_ &pipe_w);
1751 2076
1752#if EV_USE_EVENTFD 2077#if EV_USE_EVENTFD
… …
1758 { 2083 {
1759 EV_WIN32_CLOSE_FD (evpipe [0]); 2084 EV_WIN32_CLOSE_FD (evpipe [0]);
1760 EV_WIN32_CLOSE_FD (evpipe [1]); 2085 EV_WIN32_CLOSE_FD (evpipe [1]);
1761 } 2086 }
1762 2087
2088#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1763 evpipe_init (EV_A); 2089 evpipe_init (EV_A);
1764 /* now iterate over everything, in case we missed something */ 2090 /* now iterate over everything, in case we missed something */
1765 pipecb (EV_A_ &pipe_w, EV_READ); 2091 pipecb (EV_A_ &pipe_w, EV_READ);
2092#endif
1766 } 2093 }
1767 2094
1768 postfork = 0; 2095 postfork = 0;
1769} 2096}
1770 2097
1771#if EV_MULTIPLICITY 2098#if EV_MULTIPLICITY
1772 2099
1773struct ev_loop * 2100struct ev_loop * ecb_cold
1774ev_loop_new (unsigned int flags) 2101ev_loop_new (unsigned int flags)
1775{ 2102{
1776 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2103 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1777 2104
1778 memset (EV_A, 0, sizeof (struct ev_loop)); 2105 memset (EV_A, 0, sizeof (struct ev_loop));
1779 loop_init (EV_A_ flags); 2106 loop_init (EV_A_ flags);
1780 2107
1781 if (ev_backend (EV_A)) 2108 if (ev_backend (EV_A))
1782 return EV_A; 2109 return EV_A;
1783 2110
2111 ev_free (EV_A);
1784 return 0; 2112 return 0;
1785} 2113}
1786 2114
1787void
1788ev_loop_destroy (EV_P)
1789{
1790 loop_destroy (EV_A);
1791 ev_free (loop);
1792}
1793
1794void
1795ev_loop_fork (EV_P)
1796{
1797 postfork = 1; /* must be in line with ev_default_fork */
1798}
1799#endif /* multiplicity */ 2115#endif /* multiplicity */
1800 2116
1801#if EV_VERIFY 2117#if EV_VERIFY
1802static void noinline 2118static void noinline ecb_cold
1803verify_watcher (EV_P_ W w) 2119verify_watcher (EV_P_ W w)
1804{ 2120{
1805 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2121 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1806 2122
1807 if (w->pending) 2123 if (w->pending)
1808 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2124 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1809} 2125}
1810 2126
1811static void noinline 2127static void noinline ecb_cold
1812verify_heap (EV_P_ ANHE *heap, int N) 2128verify_heap (EV_P_ ANHE *heap, int N)
1813{ 2129{
1814 int i; 2130 int i;
1815 2131
1816 for (i = HEAP0; i < N + HEAP0; ++i) 2132 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1821 2137
1822 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2138 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1823 } 2139 }
1824} 2140}
1825 2141
1826static void noinline 2142static void noinline ecb_cold
1827array_verify (EV_P_ W *ws, int cnt) 2143array_verify (EV_P_ W *ws, int cnt)
1828{ 2144{
1829 while (cnt--) 2145 while (cnt--)
1830 { 2146 {
1831 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2147 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1832 verify_watcher (EV_A_ ws [cnt]); 2148 verify_watcher (EV_A_ ws [cnt]);
1833 } 2149 }
1834} 2150}
1835#endif 2151#endif
1836 2152
1837#if EV_MINIMAL < 2 2153#if EV_FEATURE_API
1838void 2154void ecb_cold
1839ev_loop_verify (EV_P) 2155ev_verify (EV_P)
1840{ 2156{
1841#if EV_VERIFY 2157#if EV_VERIFY
1842 int i; 2158 int i;
1843 WL w; 2159 WL w;
1844 2160
… …
1878#if EV_FORK_ENABLE 2194#if EV_FORK_ENABLE
1879 assert (forkmax >= forkcnt); 2195 assert (forkmax >= forkcnt);
1880 array_verify (EV_A_ (W *)forks, forkcnt); 2196 array_verify (EV_A_ (W *)forks, forkcnt);
1881#endif 2197#endif
1882 2198
2199#if EV_CLEANUP_ENABLE
2200 assert (cleanupmax >= cleanupcnt);
2201 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2202#endif
2203
1883#if EV_ASYNC_ENABLE 2204#if EV_ASYNC_ENABLE
1884 assert (asyncmax >= asynccnt); 2205 assert (asyncmax >= asynccnt);
1885 array_verify (EV_A_ (W *)asyncs, asynccnt); 2206 array_verify (EV_A_ (W *)asyncs, asynccnt);
1886#endif 2207#endif
1887 2208
2209#if EV_PREPARE_ENABLE
1888 assert (preparemax >= preparecnt); 2210 assert (preparemax >= preparecnt);
1889 array_verify (EV_A_ (W *)prepares, preparecnt); 2211 array_verify (EV_A_ (W *)prepares, preparecnt);
2212#endif
1890 2213
2214#if EV_CHECK_ENABLE
1891 assert (checkmax >= checkcnt); 2215 assert (checkmax >= checkcnt);
1892 array_verify (EV_A_ (W *)checks, checkcnt); 2216 array_verify (EV_A_ (W *)checks, checkcnt);
2217#endif
1893 2218
1894# if 0 2219# if 0
2220#if EV_CHILD_ENABLE
1895 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2221 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1896 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2222 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2223#endif
1897# endif 2224# endif
1898#endif 2225#endif
1899} 2226}
1900#endif 2227#endif
1901 2228
1902#if EV_MULTIPLICITY 2229#if EV_MULTIPLICITY
1903struct ev_loop * 2230struct ev_loop * ecb_cold
1904ev_default_loop_init (unsigned int flags)
1905#else 2231#else
1906int 2232int
2233#endif
1907ev_default_loop (unsigned int flags) 2234ev_default_loop (unsigned int flags)
1908#endif
1909{ 2235{
1910 if (!ev_default_loop_ptr) 2236 if (!ev_default_loop_ptr)
1911 { 2237 {
1912#if EV_MULTIPLICITY 2238#if EV_MULTIPLICITY
1913 EV_P = ev_default_loop_ptr = &default_loop_struct; 2239 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1917 2243
1918 loop_init (EV_A_ flags); 2244 loop_init (EV_A_ flags);
1919 2245
1920 if (ev_backend (EV_A)) 2246 if (ev_backend (EV_A))
1921 { 2247 {
1922#ifndef _WIN32 2248#if EV_CHILD_ENABLE
1923 ev_signal_init (&childev, childcb, SIGCHLD); 2249 ev_signal_init (&childev, childcb, SIGCHLD);
1924 ev_set_priority (&childev, EV_MAXPRI); 2250 ev_set_priority (&childev, EV_MAXPRI);
1925 ev_signal_start (EV_A_ &childev); 2251 ev_signal_start (EV_A_ &childev);
1926 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2252 ev_unref (EV_A); /* child watcher should not keep loop alive */
1927#endif 2253#endif
… …
1932 2258
1933 return ev_default_loop_ptr; 2259 return ev_default_loop_ptr;
1934} 2260}
1935 2261
1936void 2262void
1937ev_default_destroy (void) 2263ev_loop_fork (EV_P)
1938{ 2264{
1939#if EV_MULTIPLICITY
1940 EV_P = ev_default_loop_ptr;
1941#endif
1942
1943 ev_default_loop_ptr = 0;
1944
1945#ifndef _WIN32
1946 ev_ref (EV_A); /* child watcher */
1947 ev_signal_stop (EV_A_ &childev);
1948#endif
1949
1950 loop_destroy (EV_A);
1951}
1952
1953void
1954ev_default_fork (void)
1955{
1956#if EV_MULTIPLICITY
1957 EV_P = ev_default_loop_ptr;
1958#endif
1959
1960 postfork = 1; /* must be in line with ev_loop_fork */ 2265 postfork = 1; /* must be in line with ev_default_fork */
1961} 2266}
1962 2267
1963/*****************************************************************************/ 2268/*****************************************************************************/
1964 2269
1965void 2270void
… …
1987 2292
1988 for (pri = NUMPRI; pri--; ) 2293 for (pri = NUMPRI; pri--; )
1989 while (pendingcnt [pri]) 2294 while (pendingcnt [pri])
1990 { 2295 {
1991 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2296 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1992
1993 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1994 /* ^ this is no longer true, as pending_w could be here */
1995 2297
1996 p->w->pending = 0; 2298 p->w->pending = 0;
1997 EV_CB_INVOKE (p->w, p->events); 2299 EV_CB_INVOKE (p->w, p->events);
1998 EV_FREQUENT_CHECK; 2300 EV_FREQUENT_CHECK;
1999 } 2301 }
… …
2056 EV_FREQUENT_CHECK; 2358 EV_FREQUENT_CHECK;
2057 feed_reverse (EV_A_ (W)w); 2359 feed_reverse (EV_A_ (W)w);
2058 } 2360 }
2059 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2361 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2060 2362
2061 feed_reverse_done (EV_A_ EV_TIMEOUT); 2363 feed_reverse_done (EV_A_ EV_TIMER);
2062 } 2364 }
2063} 2365}
2064 2366
2065#if EV_PERIODIC_ENABLE 2367#if EV_PERIODIC_ENABLE
2368
2369static void noinline
2370periodic_recalc (EV_P_ ev_periodic *w)
2371{
2372 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2373 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2374
2375 /* the above almost always errs on the low side */
2376 while (at <= ev_rt_now)
2377 {
2378 ev_tstamp nat = at + w->interval;
2379
2380 /* when resolution fails us, we use ev_rt_now */
2381 if (expect_false (nat == at))
2382 {
2383 at = ev_rt_now;
2384 break;
2385 }
2386
2387 at = nat;
2388 }
2389
2390 ev_at (w) = at;
2391}
2392
2066/* make periodics pending */ 2393/* make periodics pending */
2067inline_size void 2394inline_size void
2068periodics_reify (EV_P) 2395periodics_reify (EV_P)
2069{ 2396{
2070 EV_FREQUENT_CHECK; 2397 EV_FREQUENT_CHECK;
… …
2089 ANHE_at_cache (periodics [HEAP0]); 2416 ANHE_at_cache (periodics [HEAP0]);
2090 downheap (periodics, periodiccnt, HEAP0); 2417 downheap (periodics, periodiccnt, HEAP0);
2091 } 2418 }
2092 else if (w->interval) 2419 else if (w->interval)
2093 { 2420 {
2094 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2421 periodic_recalc (EV_A_ w);
2095 /* if next trigger time is not sufficiently in the future, put it there */
2096 /* this might happen because of floating point inexactness */
2097 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2098 {
2099 ev_at (w) += w->interval;
2100
2101 /* if interval is unreasonably low we might still have a time in the past */
2102 /* so correct this. this will make the periodic very inexact, but the user */
2103 /* has effectively asked to get triggered more often than possible */
2104 if (ev_at (w) < ev_rt_now)
2105 ev_at (w) = ev_rt_now;
2106 }
2107
2108 ANHE_at_cache (periodics [HEAP0]); 2422 ANHE_at_cache (periodics [HEAP0]);
2109 downheap (periodics, periodiccnt, HEAP0); 2423 downheap (periodics, periodiccnt, HEAP0);
2110 } 2424 }
2111 else 2425 else
2112 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2426 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2119 feed_reverse_done (EV_A_ EV_PERIODIC); 2433 feed_reverse_done (EV_A_ EV_PERIODIC);
2120 } 2434 }
2121} 2435}
2122 2436
2123/* simply recalculate all periodics */ 2437/* simply recalculate all periodics */
2124/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2438/* TODO: maybe ensure that at least one event happens when jumping forward? */
2125static void noinline 2439static void noinline ecb_cold
2126periodics_reschedule (EV_P) 2440periodics_reschedule (EV_P)
2127{ 2441{
2128 int i; 2442 int i;
2129 2443
2130 /* adjust periodics after time jump */ 2444 /* adjust periodics after time jump */
… …
2133 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2447 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2134 2448
2135 if (w->reschedule_cb) 2449 if (w->reschedule_cb)
2136 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2450 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2137 else if (w->interval) 2451 else if (w->interval)
2138 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2452 periodic_recalc (EV_A_ w);
2139 2453
2140 ANHE_at_cache (periodics [i]); 2454 ANHE_at_cache (periodics [i]);
2141 } 2455 }
2142 2456
2143 reheap (periodics, periodiccnt); 2457 reheap (periodics, periodiccnt);
2144} 2458}
2145#endif 2459#endif
2146 2460
2147/* adjust all timers by a given offset */ 2461/* adjust all timers by a given offset */
2148static void noinline 2462static void noinline ecb_cold
2149timers_reschedule (EV_P_ ev_tstamp adjust) 2463timers_reschedule (EV_P_ ev_tstamp adjust)
2150{ 2464{
2151 int i; 2465 int i;
2152 2466
2153 for (i = 0; i < timercnt; ++i) 2467 for (i = 0; i < timercnt; ++i)
… …
2157 ANHE_at_cache (*he); 2471 ANHE_at_cache (*he);
2158 } 2472 }
2159} 2473}
2160 2474
2161/* fetch new monotonic and realtime times from the kernel */ 2475/* fetch new monotonic and realtime times from the kernel */
2162/* also detetc if there was a timejump, and act accordingly */ 2476/* also detect if there was a timejump, and act accordingly */
2163inline_speed void 2477inline_speed void
2164time_update (EV_P_ ev_tstamp max_block) 2478time_update (EV_P_ ev_tstamp max_block)
2165{ 2479{
2166#if EV_USE_MONOTONIC 2480#if EV_USE_MONOTONIC
2167 if (expect_true (have_monotonic)) 2481 if (expect_true (have_monotonic))
… …
2190 * doesn't hurt either as we only do this on time-jumps or 2504 * doesn't hurt either as we only do this on time-jumps or
2191 * in the unlikely event of having been preempted here. 2505 * in the unlikely event of having been preempted here.
2192 */ 2506 */
2193 for (i = 4; --i; ) 2507 for (i = 4; --i; )
2194 { 2508 {
2509 ev_tstamp diff;
2195 rtmn_diff = ev_rt_now - mn_now; 2510 rtmn_diff = ev_rt_now - mn_now;
2196 2511
2512 diff = odiff - rtmn_diff;
2513
2197 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2514 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2198 return; /* all is well */ 2515 return; /* all is well */
2199 2516
2200 ev_rt_now = ev_time (); 2517 ev_rt_now = ev_time ();
2201 mn_now = get_clock (); 2518 mn_now = get_clock ();
2202 now_floor = mn_now; 2519 now_floor = mn_now;
… …
2225 mn_now = ev_rt_now; 2542 mn_now = ev_rt_now;
2226 } 2543 }
2227} 2544}
2228 2545
2229void 2546void
2230ev_loop (EV_P_ int flags) 2547ev_run (EV_P_ int flags)
2231{ 2548{
2232#if EV_MINIMAL < 2 2549#if EV_FEATURE_API
2233 ++loop_depth; 2550 ++loop_depth;
2234#endif 2551#endif
2235 2552
2236 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2553 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2237 2554
2238 loop_done = EVUNLOOP_CANCEL; 2555 loop_done = EVBREAK_CANCEL;
2239 2556
2240 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2557 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2241 2558
2242 do 2559 do
2243 { 2560 {
2244#if EV_VERIFY >= 2 2561#if EV_VERIFY >= 2
2245 ev_loop_verify (EV_A); 2562 ev_verify (EV_A);
2246#endif 2563#endif
2247 2564
2248#ifndef _WIN32 2565#ifndef _WIN32
2249 if (expect_false (curpid)) /* penalise the forking check even more */ 2566 if (expect_false (curpid)) /* penalise the forking check even more */
2250 if (expect_false (getpid () != curpid)) 2567 if (expect_false (getpid () != curpid))
… …
2262 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2579 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2263 EV_INVOKE_PENDING; 2580 EV_INVOKE_PENDING;
2264 } 2581 }
2265#endif 2582#endif
2266 2583
2584#if EV_PREPARE_ENABLE
2267 /* queue prepare watchers (and execute them) */ 2585 /* queue prepare watchers (and execute them) */
2268 if (expect_false (preparecnt)) 2586 if (expect_false (preparecnt))
2269 { 2587 {
2270 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2588 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2271 EV_INVOKE_PENDING; 2589 EV_INVOKE_PENDING;
2272 } 2590 }
2591#endif
2273 2592
2274 if (expect_false (loop_done)) 2593 if (expect_false (loop_done))
2275 break; 2594 break;
2276 2595
2277 /* we might have forked, so reify kernel state if necessary */ 2596 /* we might have forked, so reify kernel state if necessary */
… …
2284 /* calculate blocking time */ 2603 /* calculate blocking time */
2285 { 2604 {
2286 ev_tstamp waittime = 0.; 2605 ev_tstamp waittime = 0.;
2287 ev_tstamp sleeptime = 0.; 2606 ev_tstamp sleeptime = 0.;
2288 2607
2608 /* remember old timestamp for io_blocktime calculation */
2609 ev_tstamp prev_mn_now = mn_now;
2610
2611 /* update time to cancel out callback processing overhead */
2612 time_update (EV_A_ 1e100);
2613
2614 /* from now on, we want a pipe-wake-up */
2615 pipe_write_wanted = 1;
2616
2617 ECB_MEMORY_FENCE; /* amke sure pipe_write_wanted is visible before we check for potential skips */
2618
2289 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2619 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2290 { 2620 {
2291 /* remember old timestamp for io_blocktime calculation */
2292 ev_tstamp prev_mn_now = mn_now;
2293
2294 /* update time to cancel out callback processing overhead */
2295 time_update (EV_A_ 1e100);
2296
2297 waittime = MAX_BLOCKTIME; 2621 waittime = MAX_BLOCKTIME;
2298 2622
2299 if (timercnt) 2623 if (timercnt)
2300 { 2624 {
2301 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2625 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2302 if (waittime > to) waittime = to; 2626 if (waittime > to) waittime = to;
2303 } 2627 }
2304 2628
2305#if EV_PERIODIC_ENABLE 2629#if EV_PERIODIC_ENABLE
2306 if (periodiccnt) 2630 if (periodiccnt)
2307 { 2631 {
2308 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2632 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2309 if (waittime > to) waittime = to; 2633 if (waittime > to) waittime = to;
2310 } 2634 }
2311#endif 2635#endif
2312 2636
2313 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2637 /* don't let timeouts decrease the waittime below timeout_blocktime */
2314 if (expect_false (waittime < timeout_blocktime)) 2638 if (expect_false (waittime < timeout_blocktime))
2315 waittime = timeout_blocktime; 2639 waittime = timeout_blocktime;
2640
2641 /* at this point, we NEED to wait, so we have to ensure */
2642 /* to pass a minimum nonzero value to the backend */
2643 if (expect_false (waittime < backend_mintime))
2644 waittime = backend_mintime;
2316 2645
2317 /* extra check because io_blocktime is commonly 0 */ 2646 /* extra check because io_blocktime is commonly 0 */
2318 if (expect_false (io_blocktime)) 2647 if (expect_false (io_blocktime))
2319 { 2648 {
2320 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2649 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2321 2650
2322 if (sleeptime > waittime - backend_fudge) 2651 if (sleeptime > waittime - backend_mintime)
2323 sleeptime = waittime - backend_fudge; 2652 sleeptime = waittime - backend_mintime;
2324 2653
2325 if (expect_true (sleeptime > 0.)) 2654 if (expect_true (sleeptime > 0.))
2326 { 2655 {
2327 ev_sleep (sleeptime); 2656 ev_sleep (sleeptime);
2328 waittime -= sleeptime; 2657 waittime -= sleeptime;
2329 } 2658 }
2330 } 2659 }
2331 } 2660 }
2332 2661
2333#if EV_MINIMAL < 2 2662#if EV_FEATURE_API
2334 ++loop_count; 2663 ++loop_count;
2335#endif 2664#endif
2336 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2665 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2337 backend_poll (EV_A_ waittime); 2666 backend_poll (EV_A_ waittime);
2338 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2667 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2668
2669 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2670
2671 if (pipe_write_skipped)
2672 {
2673 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2674 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2675 }
2676
2339 2677
2340 /* update ev_rt_now, do magic */ 2678 /* update ev_rt_now, do magic */
2341 time_update (EV_A_ waittime + sleeptime); 2679 time_update (EV_A_ waittime + sleeptime);
2342 } 2680 }
2343 2681
… …
2350#if EV_IDLE_ENABLE 2688#if EV_IDLE_ENABLE
2351 /* queue idle watchers unless other events are pending */ 2689 /* queue idle watchers unless other events are pending */
2352 idle_reify (EV_A); 2690 idle_reify (EV_A);
2353#endif 2691#endif
2354 2692
2693#if EV_CHECK_ENABLE
2355 /* queue check watchers, to be executed first */ 2694 /* queue check watchers, to be executed first */
2356 if (expect_false (checkcnt)) 2695 if (expect_false (checkcnt))
2357 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2696 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2697#endif
2358 2698
2359 EV_INVOKE_PENDING; 2699 EV_INVOKE_PENDING;
2360 } 2700 }
2361 while (expect_true ( 2701 while (expect_true (
2362 activecnt 2702 activecnt
2363 && !loop_done 2703 && !loop_done
2364 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2704 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2365 )); 2705 ));
2366 2706
2367 if (loop_done == EVUNLOOP_ONE) 2707 if (loop_done == EVBREAK_ONE)
2368 loop_done = EVUNLOOP_CANCEL; 2708 loop_done = EVBREAK_CANCEL;
2369 2709
2370#if EV_MINIMAL < 2 2710#if EV_FEATURE_API
2371 --loop_depth; 2711 --loop_depth;
2372#endif 2712#endif
2373} 2713}
2374 2714
2375void 2715void
2376ev_unloop (EV_P_ int how) 2716ev_break (EV_P_ int how)
2377{ 2717{
2378 loop_done = how; 2718 loop_done = how;
2379} 2719}
2380 2720
2381void 2721void
… …
2501 2841
2502 if (expect_false (ev_is_active (w))) 2842 if (expect_false (ev_is_active (w)))
2503 return; 2843 return;
2504 2844
2505 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2845 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2506 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2846 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2507 2847
2508 EV_FREQUENT_CHECK; 2848 EV_FREQUENT_CHECK;
2509 2849
2510 ev_start (EV_A_ (W)w, 1); 2850 ev_start (EV_A_ (W)w, 1);
2511 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2851 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2529 EV_FREQUENT_CHECK; 2869 EV_FREQUENT_CHECK;
2530 2870
2531 wlist_del (&anfds[w->fd].head, (WL)w); 2871 wlist_del (&anfds[w->fd].head, (WL)w);
2532 ev_stop (EV_A_ (W)w); 2872 ev_stop (EV_A_ (W)w);
2533 2873
2534 fd_change (EV_A_ w->fd, 1); 2874 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2535 2875
2536 EV_FREQUENT_CHECK; 2876 EV_FREQUENT_CHECK;
2537} 2877}
2538 2878
2539void noinline 2879void noinline
… …
2581 timers [active] = timers [timercnt + HEAP0]; 2921 timers [active] = timers [timercnt + HEAP0];
2582 adjustheap (timers, timercnt, active); 2922 adjustheap (timers, timercnt, active);
2583 } 2923 }
2584 } 2924 }
2585 2925
2586 EV_FREQUENT_CHECK;
2587
2588 ev_at (w) -= mn_now; 2926 ev_at (w) -= mn_now;
2589 2927
2590 ev_stop (EV_A_ (W)w); 2928 ev_stop (EV_A_ (W)w);
2929
2930 EV_FREQUENT_CHECK;
2591} 2931}
2592 2932
2593void noinline 2933void noinline
2594ev_timer_again (EV_P_ ev_timer *w) 2934ev_timer_again (EV_P_ ev_timer *w)
2595{ 2935{
… …
2631 if (w->reschedule_cb) 2971 if (w->reschedule_cb)
2632 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2972 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2633 else if (w->interval) 2973 else if (w->interval)
2634 { 2974 {
2635 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2975 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2636 /* this formula differs from the one in periodic_reify because we do not always round up */ 2976 periodic_recalc (EV_A_ w);
2637 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2638 } 2977 }
2639 else 2978 else
2640 ev_at (w) = w->offset; 2979 ev_at (w) = w->offset;
2641 2980
2642 EV_FREQUENT_CHECK; 2981 EV_FREQUENT_CHECK;
… …
2674 periodics [active] = periodics [periodiccnt + HEAP0]; 3013 periodics [active] = periodics [periodiccnt + HEAP0];
2675 adjustheap (periodics, periodiccnt, active); 3014 adjustheap (periodics, periodiccnt, active);
2676 } 3015 }
2677 } 3016 }
2678 3017
2679 EV_FREQUENT_CHECK;
2680
2681 ev_stop (EV_A_ (W)w); 3018 ev_stop (EV_A_ (W)w);
3019
3020 EV_FREQUENT_CHECK;
2682} 3021}
2683 3022
2684void noinline 3023void noinline
2685ev_periodic_again (EV_P_ ev_periodic *w) 3024ev_periodic_again (EV_P_ ev_periodic *w)
2686{ 3025{
… …
2691#endif 3030#endif
2692 3031
2693#ifndef SA_RESTART 3032#ifndef SA_RESTART
2694# define SA_RESTART 0 3033# define SA_RESTART 0
2695#endif 3034#endif
3035
3036#if EV_SIGNAL_ENABLE
2696 3037
2697void noinline 3038void noinline
2698ev_signal_start (EV_P_ ev_signal *w) 3039ev_signal_start (EV_P_ ev_signal *w)
2699{ 3040{
2700 if (expect_false (ev_is_active (w))) 3041 if (expect_false (ev_is_active (w)))
… …
2761 sa.sa_handler = ev_sighandler; 3102 sa.sa_handler = ev_sighandler;
2762 sigfillset (&sa.sa_mask); 3103 sigfillset (&sa.sa_mask);
2763 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3104 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2764 sigaction (w->signum, &sa, 0); 3105 sigaction (w->signum, &sa, 0);
2765 3106
3107 if (origflags & EVFLAG_NOSIGMASK)
3108 {
2766 sigemptyset (&sa.sa_mask); 3109 sigemptyset (&sa.sa_mask);
2767 sigaddset (&sa.sa_mask, w->signum); 3110 sigaddset (&sa.sa_mask, w->signum);
2768 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3111 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3112 }
2769#endif 3113#endif
2770 } 3114 }
2771 3115
2772 EV_FREQUENT_CHECK; 3116 EV_FREQUENT_CHECK;
2773} 3117}
… …
2807 } 3151 }
2808 3152
2809 EV_FREQUENT_CHECK; 3153 EV_FREQUENT_CHECK;
2810} 3154}
2811 3155
3156#endif
3157
3158#if EV_CHILD_ENABLE
3159
2812void 3160void
2813ev_child_start (EV_P_ ev_child *w) 3161ev_child_start (EV_P_ ev_child *w)
2814{ 3162{
2815#if EV_MULTIPLICITY 3163#if EV_MULTIPLICITY
2816 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3164 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2819 return; 3167 return;
2820 3168
2821 EV_FREQUENT_CHECK; 3169 EV_FREQUENT_CHECK;
2822 3170
2823 ev_start (EV_A_ (W)w, 1); 3171 ev_start (EV_A_ (W)w, 1);
2824 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3172 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2825 3173
2826 EV_FREQUENT_CHECK; 3174 EV_FREQUENT_CHECK;
2827} 3175}
2828 3176
2829void 3177void
… …
2833 if (expect_false (!ev_is_active (w))) 3181 if (expect_false (!ev_is_active (w)))
2834 return; 3182 return;
2835 3183
2836 EV_FREQUENT_CHECK; 3184 EV_FREQUENT_CHECK;
2837 3185
2838 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3186 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2839 ev_stop (EV_A_ (W)w); 3187 ev_stop (EV_A_ (W)w);
2840 3188
2841 EV_FREQUENT_CHECK; 3189 EV_FREQUENT_CHECK;
2842} 3190}
3191
3192#endif
2843 3193
2844#if EV_STAT_ENABLE 3194#if EV_STAT_ENABLE
2845 3195
2846# ifdef _WIN32 3196# ifdef _WIN32
2847# undef lstat 3197# undef lstat
… …
2853#define MIN_STAT_INTERVAL 0.1074891 3203#define MIN_STAT_INTERVAL 0.1074891
2854 3204
2855static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3205static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2856 3206
2857#if EV_USE_INOTIFY 3207#if EV_USE_INOTIFY
2858# define EV_INOTIFY_BUFSIZE 8192 3208
3209/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3210# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2859 3211
2860static void noinline 3212static void noinline
2861infy_add (EV_P_ ev_stat *w) 3213infy_add (EV_P_ ev_stat *w)
2862{ 3214{
2863 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); 3215 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);
… …
2906 if (!pend || pend == path) 3258 if (!pend || pend == path)
2907 break; 3259 break;
2908 3260
2909 *pend = 0; 3261 *pend = 0;
2910 w->wd = inotify_add_watch (fs_fd, path, mask); 3262 w->wd = inotify_add_watch (fs_fd, path, mask);
2911 } 3263 }
2912 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3264 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2913 } 3265 }
2914 } 3266 }
2915 3267
2916 if (w->wd >= 0) 3268 if (w->wd >= 0)
2917 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3269 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2918 3270
2919 /* now re-arm timer, if required */ 3271 /* now re-arm timer, if required */
2920 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3272 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2921 ev_timer_again (EV_A_ &w->timer); 3273 ev_timer_again (EV_A_ &w->timer);
2922 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3274 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2930 3282
2931 if (wd < 0) 3283 if (wd < 0)
2932 return; 3284 return;
2933 3285
2934 w->wd = -2; 3286 w->wd = -2;
2935 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3287 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2936 wlist_del (&fs_hash [slot].head, (WL)w); 3288 wlist_del (&fs_hash [slot].head, (WL)w);
2937 3289
2938 /* remove this watcher, if others are watching it, they will rearm */ 3290 /* remove this watcher, if others are watching it, they will rearm */
2939 inotify_rm_watch (fs_fd, wd); 3291 inotify_rm_watch (fs_fd, wd);
2940} 3292}
… …
2942static void noinline 3294static void noinline
2943infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3295infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2944{ 3296{
2945 if (slot < 0) 3297 if (slot < 0)
2946 /* overflow, need to check for all hash slots */ 3298 /* overflow, need to check for all hash slots */
2947 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3299 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2948 infy_wd (EV_A_ slot, wd, ev); 3300 infy_wd (EV_A_ slot, wd, ev);
2949 else 3301 else
2950 { 3302 {
2951 WL w_; 3303 WL w_;
2952 3304
2953 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3305 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2954 { 3306 {
2955 ev_stat *w = (ev_stat *)w_; 3307 ev_stat *w = (ev_stat *)w_;
2956 w_ = w_->next; /* lets us remove this watcher and all before it */ 3308 w_ = w_->next; /* lets us remove this watcher and all before it */
2957 3309
2958 if (w->wd == wd || wd == -1) 3310 if (w->wd == wd || wd == -1)
2959 { 3311 {
2960 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3312 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2961 { 3313 {
2962 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3314 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2963 w->wd = -1; 3315 w->wd = -1;
2964 infy_add (EV_A_ w); /* re-add, no matter what */ 3316 infy_add (EV_A_ w); /* re-add, no matter what */
2965 } 3317 }
2966 3318
2967 stat_timer_cb (EV_A_ &w->timer, 0); 3319 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2972 3324
2973static void 3325static void
2974infy_cb (EV_P_ ev_io *w, int revents) 3326infy_cb (EV_P_ ev_io *w, int revents)
2975{ 3327{
2976 char buf [EV_INOTIFY_BUFSIZE]; 3328 char buf [EV_INOTIFY_BUFSIZE];
2977 struct inotify_event *ev = (struct inotify_event *)buf;
2978 int ofs; 3329 int ofs;
2979 int len = read (fs_fd, buf, sizeof (buf)); 3330 int len = read (fs_fd, buf, sizeof (buf));
2980 3331
2981 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3332 for (ofs = 0; ofs < len; )
3333 {
3334 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2982 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3335 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3336 ofs += sizeof (struct inotify_event) + ev->len;
3337 }
2983} 3338}
2984 3339
2985inline_size void 3340inline_size void ecb_cold
2986check_2625 (EV_P) 3341ev_check_2625 (EV_P)
2987{ 3342{
2988 /* kernels < 2.6.25 are borked 3343 /* kernels < 2.6.25 are borked
2989 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3344 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2990 */ 3345 */
2991 struct utsname buf; 3346 if (ev_linux_version () < 0x020619)
2992 int major, minor, micro;
2993
2994 if (uname (&buf))
2995 return;
2996
2997 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2998 return;
2999
3000 if (major < 2
3001 || (major == 2 && minor < 6)
3002 || (major == 2 && minor == 6 && micro < 25))
3003 return; 3347 return;
3004 3348
3005 fs_2625 = 1; 3349 fs_2625 = 1;
3006} 3350}
3007 3351
… …
3022 if (fs_fd != -2) 3366 if (fs_fd != -2)
3023 return; 3367 return;
3024 3368
3025 fs_fd = -1; 3369 fs_fd = -1;
3026 3370
3027 check_2625 (EV_A); 3371 ev_check_2625 (EV_A);
3028 3372
3029 fs_fd = infy_newfd (); 3373 fs_fd = infy_newfd ();
3030 3374
3031 if (fs_fd >= 0) 3375 if (fs_fd >= 0)
3032 { 3376 {
… …
3057 ev_io_set (&fs_w, fs_fd, EV_READ); 3401 ev_io_set (&fs_w, fs_fd, EV_READ);
3058 ev_io_start (EV_A_ &fs_w); 3402 ev_io_start (EV_A_ &fs_w);
3059 ev_unref (EV_A); 3403 ev_unref (EV_A);
3060 } 3404 }
3061 3405
3062 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3406 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3063 { 3407 {
3064 WL w_ = fs_hash [slot].head; 3408 WL w_ = fs_hash [slot].head;
3065 fs_hash [slot].head = 0; 3409 fs_hash [slot].head = 0;
3066 3410
3067 while (w_) 3411 while (w_)
… …
3242 3586
3243 EV_FREQUENT_CHECK; 3587 EV_FREQUENT_CHECK;
3244} 3588}
3245#endif 3589#endif
3246 3590
3591#if EV_PREPARE_ENABLE
3247void 3592void
3248ev_prepare_start (EV_P_ ev_prepare *w) 3593ev_prepare_start (EV_P_ ev_prepare *w)
3249{ 3594{
3250 if (expect_false (ev_is_active (w))) 3595 if (expect_false (ev_is_active (w)))
3251 return; 3596 return;
… …
3277 3622
3278 ev_stop (EV_A_ (W)w); 3623 ev_stop (EV_A_ (W)w);
3279 3624
3280 EV_FREQUENT_CHECK; 3625 EV_FREQUENT_CHECK;
3281} 3626}
3627#endif
3282 3628
3629#if EV_CHECK_ENABLE
3283void 3630void
3284ev_check_start (EV_P_ ev_check *w) 3631ev_check_start (EV_P_ ev_check *w)
3285{ 3632{
3286 if (expect_false (ev_is_active (w))) 3633 if (expect_false (ev_is_active (w)))
3287 return; 3634 return;
… …
3313 3660
3314 ev_stop (EV_A_ (W)w); 3661 ev_stop (EV_A_ (W)w);
3315 3662
3316 EV_FREQUENT_CHECK; 3663 EV_FREQUENT_CHECK;
3317} 3664}
3665#endif
3318 3666
3319#if EV_EMBED_ENABLE 3667#if EV_EMBED_ENABLE
3320void noinline 3668void noinline
3321ev_embed_sweep (EV_P_ ev_embed *w) 3669ev_embed_sweep (EV_P_ ev_embed *w)
3322{ 3670{
3323 ev_loop (w->other, EVLOOP_NONBLOCK); 3671 ev_run (w->other, EVRUN_NOWAIT);
3324} 3672}
3325 3673
3326static void 3674static void
3327embed_io_cb (EV_P_ ev_io *io, int revents) 3675embed_io_cb (EV_P_ ev_io *io, int revents)
3328{ 3676{
3329 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3677 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3330 3678
3331 if (ev_cb (w)) 3679 if (ev_cb (w))
3332 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3680 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3333 else 3681 else
3334 ev_loop (w->other, EVLOOP_NONBLOCK); 3682 ev_run (w->other, EVRUN_NOWAIT);
3335} 3683}
3336 3684
3337static void 3685static void
3338embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3686embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3339{ 3687{
… …
3343 EV_P = w->other; 3691 EV_P = w->other;
3344 3692
3345 while (fdchangecnt) 3693 while (fdchangecnt)
3346 { 3694 {
3347 fd_reify (EV_A); 3695 fd_reify (EV_A);
3348 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3696 ev_run (EV_A_ EVRUN_NOWAIT);
3349 } 3697 }
3350 } 3698 }
3351} 3699}
3352 3700
3353static void 3701static void
… …
3359 3707
3360 { 3708 {
3361 EV_P = w->other; 3709 EV_P = w->other;
3362 3710
3363 ev_loop_fork (EV_A); 3711 ev_loop_fork (EV_A);
3364 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3712 ev_run (EV_A_ EVRUN_NOWAIT);
3365 } 3713 }
3366 3714
3367 ev_embed_start (EV_A_ w); 3715 ev_embed_start (EV_A_ w);
3368} 3716}
3369 3717
… …
3417 3765
3418 ev_io_stop (EV_A_ &w->io); 3766 ev_io_stop (EV_A_ &w->io);
3419 ev_prepare_stop (EV_A_ &w->prepare); 3767 ev_prepare_stop (EV_A_ &w->prepare);
3420 ev_fork_stop (EV_A_ &w->fork); 3768 ev_fork_stop (EV_A_ &w->fork);
3421 3769
3770 ev_stop (EV_A_ (W)w);
3771
3422 EV_FREQUENT_CHECK; 3772 EV_FREQUENT_CHECK;
3423} 3773}
3424#endif 3774#endif
3425 3775
3426#if EV_FORK_ENABLE 3776#if EV_FORK_ENABLE
… …
3459 3809
3460 EV_FREQUENT_CHECK; 3810 EV_FREQUENT_CHECK;
3461} 3811}
3462#endif 3812#endif
3463 3813
3814#if EV_CLEANUP_ENABLE
3815void
3816ev_cleanup_start (EV_P_ ev_cleanup *w)
3817{
3818 if (expect_false (ev_is_active (w)))
3819 return;
3820
3821 EV_FREQUENT_CHECK;
3822
3823 ev_start (EV_A_ (W)w, ++cleanupcnt);
3824 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3825 cleanups [cleanupcnt - 1] = w;
3826
3827 /* cleanup watchers should never keep a refcount on the loop */
3828 ev_unref (EV_A);
3829 EV_FREQUENT_CHECK;
3830}
3831
3832void
3833ev_cleanup_stop (EV_P_ ev_cleanup *w)
3834{
3835 clear_pending (EV_A_ (W)w);
3836 if (expect_false (!ev_is_active (w)))
3837 return;
3838
3839 EV_FREQUENT_CHECK;
3840 ev_ref (EV_A);
3841
3842 {
3843 int active = ev_active (w);
3844
3845 cleanups [active - 1] = cleanups [--cleanupcnt];
3846 ev_active (cleanups [active - 1]) = active;
3847 }
3848
3849 ev_stop (EV_A_ (W)w);
3850
3851 EV_FREQUENT_CHECK;
3852}
3853#endif
3854
3464#if EV_ASYNC_ENABLE 3855#if EV_ASYNC_ENABLE
3465void 3856void
3466ev_async_start (EV_P_ ev_async *w) 3857ev_async_start (EV_P_ ev_async *w)
3467{ 3858{
3468 if (expect_false (ev_is_active (w))) 3859 if (expect_false (ev_is_active (w)))
3469 return; 3860 return;
3861
3862 w->sent = 0;
3470 3863
3471 evpipe_init (EV_A); 3864 evpipe_init (EV_A);
3472 3865
3473 EV_FREQUENT_CHECK; 3866 EV_FREQUENT_CHECK;
3474 3867
… …
3552{ 3945{
3553 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3946 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3554 3947
3555 if (expect_false (!once)) 3948 if (expect_false (!once))
3556 { 3949 {
3557 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3950 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3558 return; 3951 return;
3559 } 3952 }
3560 3953
3561 once->cb = cb; 3954 once->cb = cb;
3562 once->arg = arg; 3955 once->arg = arg;
… …
3577} 3970}
3578 3971
3579/*****************************************************************************/ 3972/*****************************************************************************/
3580 3973
3581#if EV_WALK_ENABLE 3974#if EV_WALK_ENABLE
3582void 3975void ecb_cold
3583ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3976ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3584{ 3977{
3585 int i, j; 3978 int i, j;
3586 ev_watcher_list *wl, *wn; 3979 ev_watcher_list *wl, *wn;
3587 3980
… …
3649 if (types & EV_ASYNC) 4042 if (types & EV_ASYNC)
3650 for (i = asynccnt; i--; ) 4043 for (i = asynccnt; i--; )
3651 cb (EV_A_ EV_ASYNC, asyncs [i]); 4044 cb (EV_A_ EV_ASYNC, asyncs [i]);
3652#endif 4045#endif
3653 4046
4047#if EV_PREPARE_ENABLE
3654 if (types & EV_PREPARE) 4048 if (types & EV_PREPARE)
3655 for (i = preparecnt; i--; ) 4049 for (i = preparecnt; i--; )
3656#if EV_EMBED_ENABLE 4050# if EV_EMBED_ENABLE
3657 if (ev_cb (prepares [i]) != embed_prepare_cb) 4051 if (ev_cb (prepares [i]) != embed_prepare_cb)
3658#endif 4052# endif
3659 cb (EV_A_ EV_PREPARE, prepares [i]); 4053 cb (EV_A_ EV_PREPARE, prepares [i]);
4054#endif
3660 4055
4056#if EV_CHECK_ENABLE
3661 if (types & EV_CHECK) 4057 if (types & EV_CHECK)
3662 for (i = checkcnt; i--; ) 4058 for (i = checkcnt; i--; )
3663 cb (EV_A_ EV_CHECK, checks [i]); 4059 cb (EV_A_ EV_CHECK, checks [i]);
4060#endif
3664 4061
4062#if EV_SIGNAL_ENABLE
3665 if (types & EV_SIGNAL) 4063 if (types & EV_SIGNAL)
3666 for (i = 0; i < EV_NSIG - 1; ++i) 4064 for (i = 0; i < EV_NSIG - 1; ++i)
3667 for (wl = signals [i].head; wl; ) 4065 for (wl = signals [i].head; wl; )
3668 { 4066 {
3669 wn = wl->next; 4067 wn = wl->next;
3670 cb (EV_A_ EV_SIGNAL, wl); 4068 cb (EV_A_ EV_SIGNAL, wl);
3671 wl = wn; 4069 wl = wn;
3672 } 4070 }
4071#endif
3673 4072
4073#if EV_CHILD_ENABLE
3674 if (types & EV_CHILD) 4074 if (types & EV_CHILD)
3675 for (i = EV_PID_HASHSIZE; i--; ) 4075 for (i = (EV_PID_HASHSIZE); i--; )
3676 for (wl = childs [i]; wl; ) 4076 for (wl = childs [i]; wl; )
3677 { 4077 {
3678 wn = wl->next; 4078 wn = wl->next;
3679 cb (EV_A_ EV_CHILD, wl); 4079 cb (EV_A_ EV_CHILD, wl);
3680 wl = wn; 4080 wl = wn;
3681 } 4081 }
4082#endif
3682/* EV_STAT 0x00001000 /* stat data changed */ 4083/* EV_STAT 0x00001000 /* stat data changed */
3683/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4084/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3684} 4085}
3685#endif 4086#endif
3686 4087
3687#if EV_MULTIPLICITY 4088#if EV_MULTIPLICITY
3688 #include "ev_wrap.h" 4089 #include "ev_wrap.h"
3689#endif 4090#endif
3690 4091
3691#ifdef __cplusplus 4092EV_CPP(})
3692}
3693#endif
3694 4093

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