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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 1.379 by root, Sun Jun 19 17:55:13 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
466#endif
467 496
497#if ECB_GCC_VERSION(3,1)
498 #define ecb_attribute(attrlist) __attribute__(attrlist)
499 #define ecb_is_constant(expr) __builtin_constant_p (expr)
500 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
501 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
502#else
503 #define ecb_attribute(attrlist)
504 #define ecb_is_constant(expr) 0
505 #define ecb_expect(expr,value) (expr)
506 #define ecb_prefetch(addr,rw,locality)
507#endif
508
509#define ecb_noinline ecb_attribute ((__noinline__))
510#define ecb_noreturn ecb_attribute ((__noreturn__))
511#define ecb_unused ecb_attribute ((__unused__))
512#define ecb_const ecb_attribute ((__const__))
513#define ecb_pure ecb_attribute ((__pure__))
514
515#if ECB_GCC_VERSION(4,3)
516 #define ecb_artificial ecb_attribute ((__artificial__))
517 #define ecb_hot ecb_attribute ((__hot__))
518 #define ecb_cold ecb_attribute ((__cold__))
519#else
520 #define ecb_artificial
521 #define ecb_hot
522 #define ecb_cold
523#endif
524
525/* put around conditional expressions if you are very sure that the */
526/* expression is mostly true or mostly false. note that these return */
527/* booleans, not the expression. */
468#define expect_false(expr) expect ((expr) != 0, 0) 528#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
469#define expect_true(expr) expect ((expr) != 0, 1) 529#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
530/* ecb.h end */
531
532#define expect_false(cond) ecb_expect_false (cond)
533#define expect_true(cond) ecb_expect_true (cond)
534#define noinline ecb_noinline
535
470#define inline_size static inline 536#define inline_size ecb_inline
471 537
472#if EV_MINIMAL 538#if EV_FEATURE_CODE
539# define inline_speed ecb_inline
540#else
473# define inline_speed static noinline 541# define inline_speed static noinline
474#else
475# define inline_speed static inline
476#endif 542#endif
477 543
478#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 544#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
479 545
480#if EV_MINPRI == EV_MAXPRI 546#if EV_MINPRI == EV_MAXPRI
… …
493#define ev_active(w) ((W)(w))->active 559#define ev_active(w) ((W)(w))->active
494#define ev_at(w) ((WT)(w))->at 560#define ev_at(w) ((WT)(w))->at
495 561
496#if EV_USE_REALTIME 562#if EV_USE_REALTIME
497/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 563/* 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 */ 564/* giving it a reasonably high chance of working on typical architectures */
499static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 565static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
500#endif 566#endif
501 567
502#if EV_USE_MONOTONIC 568#if EV_USE_MONOTONIC
503static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 569static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
517# include "ev_win32.c" 583# include "ev_win32.c"
518#endif 584#endif
519 585
520/*****************************************************************************/ 586/*****************************************************************************/
521 587
588/* define a suitable floor function (only used by periodics atm) */
589
590#if EV_USE_FLOOR
591# include <math.h>
592# define ev_floor(v) floor (v)
593#else
594
595#include <float.h>
596
597/* a floor() replacement function, should be independent of ev_tstamp type */
598static ev_tstamp noinline
599ev_floor (ev_tstamp v)
600{
601 /* the choice of shift factor is not terribly important */
602#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
603 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
604#else
605 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
606#endif
607
608 /* argument too large for an unsigned long? */
609 if (expect_false (v >= shift))
610 {
611 ev_tstamp f;
612
613 if (v == v - 1.)
614 return v; /* very large number */
615
616 f = shift * ev_floor (v * (1. / shift));
617 return f + ev_floor (v - f);
618 }
619
620 /* special treatment for negative args? */
621 if (expect_false (v < 0.))
622 {
623 ev_tstamp f = -ev_floor (-v);
624
625 return f - (f == v ? 0 : 1);
626 }
627
628 /* fits into an unsigned long */
629 return (unsigned long)v;
630}
631
632#endif
633
634/*****************************************************************************/
635
636#ifdef __linux
637# include <sys/utsname.h>
638#endif
639
640static unsigned int noinline ecb_cold
641ev_linux_version (void)
642{
643#ifdef __linux
644 unsigned int v = 0;
645 struct utsname buf;
646 int i;
647 char *p = buf.release;
648
649 if (uname (&buf))
650 return 0;
651
652 for (i = 3+1; --i; )
653 {
654 unsigned int c = 0;
655
656 for (;;)
657 {
658 if (*p >= '0' && *p <= '9')
659 c = c * 10 + *p++ - '0';
660 else
661 {
662 p += *p == '.';
663 break;
664 }
665 }
666
667 v = (v << 8) | c;
668 }
669
670 return v;
671#else
672 return 0;
673#endif
674}
675
676/*****************************************************************************/
677
678#if EV_AVOID_STDIO
679static void noinline ecb_cold
680ev_printerr (const char *msg)
681{
682 write (STDERR_FILENO, msg, strlen (msg));
683}
684#endif
685
522static void (*syserr_cb)(const char *msg); 686static void (*syserr_cb)(const char *msg);
523 687
524void 688void ecb_cold
525ev_set_syserr_cb (void (*cb)(const char *msg)) 689ev_set_syserr_cb (void (*cb)(const char *msg))
526{ 690{
527 syserr_cb = cb; 691 syserr_cb = cb;
528} 692}
529 693
530static void noinline 694static void noinline ecb_cold
531ev_syserr (const char *msg) 695ev_syserr (const char *msg)
532{ 696{
533 if (!msg) 697 if (!msg)
534 msg = "(libev) system error"; 698 msg = "(libev) system error";
535 699
536 if (syserr_cb) 700 if (syserr_cb)
537 syserr_cb (msg); 701 syserr_cb (msg);
538 else 702 else
539 { 703 {
704#if EV_AVOID_STDIO
705 ev_printerr (msg);
706 ev_printerr (": ");
707 ev_printerr (strerror (errno));
708 ev_printerr ("\n");
709#else
540 perror (msg); 710 perror (msg);
711#endif
541 abort (); 712 abort ();
542 } 713 }
543} 714}
544 715
545static void * 716static void *
546ev_realloc_emul (void *ptr, long size) 717ev_realloc_emul (void *ptr, long size)
547{ 718{
719#if __GLIBC__
720 return realloc (ptr, size);
721#else
548 /* some systems, notably openbsd and darwin, fail to properly 722 /* some systems, notably openbsd and darwin, fail to properly
549 * implement realloc (x, 0) (as required by both ansi c-98 and 723 * implement realloc (x, 0) (as required by both ansi c-89 and
550 * the single unix specification, so work around them here. 724 * the single unix specification, so work around them here.
551 */ 725 */
552 726
553 if (size) 727 if (size)
554 return realloc (ptr, size); 728 return realloc (ptr, size);
555 729
556 free (ptr); 730 free (ptr);
557 return 0; 731 return 0;
732#endif
558} 733}
559 734
560static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 735static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
561 736
562void 737void ecb_cold
563ev_set_allocator (void *(*cb)(void *ptr, long size)) 738ev_set_allocator (void *(*cb)(void *ptr, long size))
564{ 739{
565 alloc = cb; 740 alloc = cb;
566} 741}
567 742
… …
570{ 745{
571 ptr = alloc (ptr, size); 746 ptr = alloc (ptr, size);
572 747
573 if (!ptr && size) 748 if (!ptr && size)
574 { 749 {
750#if EV_AVOID_STDIO
751 ev_printerr ("(libev) memory allocation failed, aborting.\n");
752#else
575 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 753 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
754#endif
576 abort (); 755 abort ();
577 } 756 }
578 757
579 return ptr; 758 return ptr;
580} 759}
… …
596 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 775 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
597 unsigned char unused; 776 unsigned char unused;
598#if EV_USE_EPOLL 777#if EV_USE_EPOLL
599 unsigned int egen; /* generation counter to counter epoll bugs */ 778 unsigned int egen; /* generation counter to counter epoll bugs */
600#endif 779#endif
601#if EV_SELECT_IS_WINSOCKET 780#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
602 SOCKET handle; 781 SOCKET handle;
782#endif
783#if EV_USE_IOCP
784 OVERLAPPED or, ow;
603#endif 785#endif
604} ANFD; 786} ANFD;
605 787
606/* stores the pending event set for a given watcher */ 788/* stores the pending event set for a given watcher */
607typedef struct 789typedef struct
… …
662 844
663 static int ev_default_loop_ptr; 845 static int ev_default_loop_ptr;
664 846
665#endif 847#endif
666 848
667#if EV_MINIMAL < 2 849#if EV_FEATURE_API
668# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 850# 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) 851# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
670# define EV_INVOKE_PENDING invoke_cb (EV_A) 852# define EV_INVOKE_PENDING invoke_cb (EV_A)
671#else 853#else
672# define EV_RELEASE_CB (void)0 854# define EV_RELEASE_CB (void)0
673# define EV_ACQUIRE_CB (void)0 855# define EV_ACQUIRE_CB (void)0
674# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 856# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
675#endif 857#endif
676 858
677#define EVUNLOOP_RECURSE 0x80 859#define EVBREAK_RECURSE 0x80
678 860
679/*****************************************************************************/ 861/*****************************************************************************/
680 862
681#ifndef EV_HAVE_EV_TIME 863#ifndef EV_HAVE_EV_TIME
682ev_tstamp 864ev_tstamp
… …
726 if (delay > 0.) 908 if (delay > 0.)
727 { 909 {
728#if EV_USE_NANOSLEEP 910#if EV_USE_NANOSLEEP
729 struct timespec ts; 911 struct timespec ts;
730 912
731 ts.tv_sec = (time_t)delay; 913 EV_TS_SET (ts, delay);
732 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
733
734 nanosleep (&ts, 0); 914 nanosleep (&ts, 0);
735#elif defined(_WIN32) 915#elif defined(_WIN32)
736 Sleep ((unsigned long)(delay * 1e3)); 916 Sleep ((unsigned long)(delay * 1e3));
737#else 917#else
738 struct timeval tv; 918 struct timeval tv;
739 919
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 */ 920 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
744 /* something not guaranteed by newer posix versions, but guaranteed */ 921 /* something not guaranteed by newer posix versions, but guaranteed */
745 /* by older ones */ 922 /* by older ones */
923 EV_TV_SET (tv, delay);
746 select (0, 0, 0, 0, &tv); 924 select (0, 0, 0, 0, &tv);
747#endif 925#endif
748 } 926 }
749} 927}
750 928
751/*****************************************************************************/ 929/*****************************************************************************/
752 930
753#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 931#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
754 932
755/* find a suitable new size for the given array, */ 933/* find a suitable new size for the given array, */
756/* hopefully by rounding to a ncie-to-malloc size */ 934/* hopefully by rounding to a nice-to-malloc size */
757inline_size int 935inline_size int
758array_nextsize (int elem, int cur, int cnt) 936array_nextsize (int elem, int cur, int cnt)
759{ 937{
760 int ncur = cur + 1; 938 int ncur = cur + 1;
761 939
… …
773 } 951 }
774 952
775 return ncur; 953 return ncur;
776} 954}
777 955
778static noinline void * 956static void * noinline ecb_cold
779array_realloc (int elem, void *base, int *cur, int cnt) 957array_realloc (int elem, void *base, int *cur, int cnt)
780{ 958{
781 *cur = array_nextsize (elem, *cur, cnt); 959 *cur = array_nextsize (elem, *cur, cnt);
782 return ev_realloc (base, elem * *cur); 960 return ev_realloc (base, elem * *cur);
783} 961}
… …
857} 1035}
858 1036
859/*****************************************************************************/ 1037/*****************************************************************************/
860 1038
861inline_speed void 1039inline_speed void
862fd_event_nc (EV_P_ int fd, int revents) 1040fd_event_nocheck (EV_P_ int fd, int revents)
863{ 1041{
864 ANFD *anfd = anfds + fd; 1042 ANFD *anfd = anfds + fd;
865 ev_io *w; 1043 ev_io *w;
866 1044
867 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1045 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
879fd_event (EV_P_ int fd, int revents) 1057fd_event (EV_P_ int fd, int revents)
880{ 1058{
881 ANFD *anfd = anfds + fd; 1059 ANFD *anfd = anfds + fd;
882 1060
883 if (expect_true (!anfd->reify)) 1061 if (expect_true (!anfd->reify))
884 fd_event_nc (EV_A_ fd, revents); 1062 fd_event_nocheck (EV_A_ fd, revents);
885} 1063}
886 1064
887void 1065void
888ev_feed_fd_event (EV_P_ int fd, int revents) 1066ev_feed_fd_event (EV_P_ int fd, int revents)
889{ 1067{
890 if (fd >= 0 && fd < anfdmax) 1068 if (fd >= 0 && fd < anfdmax)
891 fd_event_nc (EV_A_ fd, revents); 1069 fd_event_nocheck (EV_A_ fd, revents);
892} 1070}
893 1071
894/* make sure the external fd watch events are in-sync */ 1072/* make sure the external fd watch events are in-sync */
895/* with the kernel/libev internal state */ 1073/* with the kernel/libev internal state */
896inline_size void 1074inline_size void
897fd_reify (EV_P) 1075fd_reify (EV_P)
898{ 1076{
899 int i; 1077 int i;
900 1078
1079#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1080 for (i = 0; i < fdchangecnt; ++i)
1081 {
1082 int fd = fdchanges [i];
1083 ANFD *anfd = anfds + fd;
1084
1085 if (anfd->reify & EV__IOFDSET && anfd->head)
1086 {
1087 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1088
1089 if (handle != anfd->handle)
1090 {
1091 unsigned long arg;
1092
1093 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1094
1095 /* handle changed, but fd didn't - we need to do it in two steps */
1096 backend_modify (EV_A_ fd, anfd->events, 0);
1097 anfd->events = 0;
1098 anfd->handle = handle;
1099 }
1100 }
1101 }
1102#endif
1103
901 for (i = 0; i < fdchangecnt; ++i) 1104 for (i = 0; i < fdchangecnt; ++i)
902 { 1105 {
903 int fd = fdchanges [i]; 1106 int fd = fdchanges [i];
904 ANFD *anfd = anfds + fd; 1107 ANFD *anfd = anfds + fd;
905 ev_io *w; 1108 ev_io *w;
906 1109
907 unsigned char events = 0; 1110 unsigned char o_events = anfd->events;
1111 unsigned char o_reify = anfd->reify;
908 1112
909 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1113 anfd->reify = 0;
910 events |= (unsigned char)w->events;
911 1114
912#if EV_SELECT_IS_WINSOCKET 1115 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
913 if (events)
914 { 1116 {
915 unsigned long arg; 1117 anfd->events = 0;
916 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1118
917 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1119 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1120 anfd->events |= (unsigned char)w->events;
1121
1122 if (o_events != anfd->events)
1123 o_reify = EV__IOFDSET; /* actually |= */
918 } 1124 }
919#endif
920 1125
921 { 1126 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); 1127 backend_modify (EV_A_ fd, o_events, anfd->events);
930 }
931 } 1128 }
932 1129
933 fdchangecnt = 0; 1130 fdchangecnt = 0;
934} 1131}
935 1132
… …
947 fdchanges [fdchangecnt - 1] = fd; 1144 fdchanges [fdchangecnt - 1] = fd;
948 } 1145 }
949} 1146}
950 1147
951/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1148/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
952inline_speed void 1149inline_speed void ecb_cold
953fd_kill (EV_P_ int fd) 1150fd_kill (EV_P_ int fd)
954{ 1151{
955 ev_io *w; 1152 ev_io *w;
956 1153
957 while ((w = (ev_io *)anfds [fd].head)) 1154 while ((w = (ev_io *)anfds [fd].head))
… …
959 ev_io_stop (EV_A_ w); 1156 ev_io_stop (EV_A_ w);
960 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1157 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
961 } 1158 }
962} 1159}
963 1160
964/* check whether the given fd is atcually valid, for error recovery */ 1161/* check whether the given fd is actually valid, for error recovery */
965inline_size int 1162inline_size int ecb_cold
966fd_valid (int fd) 1163fd_valid (int fd)
967{ 1164{
968#ifdef _WIN32 1165#ifdef _WIN32
969 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1166 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
970#else 1167#else
971 return fcntl (fd, F_GETFD) != -1; 1168 return fcntl (fd, F_GETFD) != -1;
972#endif 1169#endif
973} 1170}
974 1171
975/* called on EBADF to verify fds */ 1172/* called on EBADF to verify fds */
976static void noinline 1173static void noinline ecb_cold
977fd_ebadf (EV_P) 1174fd_ebadf (EV_P)
978{ 1175{
979 int fd; 1176 int fd;
980 1177
981 for (fd = 0; fd < anfdmax; ++fd) 1178 for (fd = 0; fd < anfdmax; ++fd)
… …
983 if (!fd_valid (fd) && errno == EBADF) 1180 if (!fd_valid (fd) && errno == EBADF)
984 fd_kill (EV_A_ fd); 1181 fd_kill (EV_A_ fd);
985} 1182}
986 1183
987/* called on ENOMEM in select/poll to kill some fds and retry */ 1184/* called on ENOMEM in select/poll to kill some fds and retry */
988static void noinline 1185static void noinline ecb_cold
989fd_enomem (EV_P) 1186fd_enomem (EV_P)
990{ 1187{
991 int fd; 1188 int fd;
992 1189
993 for (fd = anfdmax; fd--; ) 1190 for (fd = anfdmax; fd--; )
… …
1011 anfds [fd].emask = 0; 1208 anfds [fd].emask = 0;
1012 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1209 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1013 } 1210 }
1014} 1211}
1015 1212
1213/* used to prepare libev internal fd's */
1214/* this is not fork-safe */
1215inline_speed void
1216fd_intern (int fd)
1217{
1218#ifdef _WIN32
1219 unsigned long arg = 1;
1220 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1221#else
1222 fcntl (fd, F_SETFD, FD_CLOEXEC);
1223 fcntl (fd, F_SETFL, O_NONBLOCK);
1224#endif
1225}
1226
1016/*****************************************************************************/ 1227/*****************************************************************************/
1017 1228
1018/* 1229/*
1019 * the heap functions want a real array index. array index 0 uis guaranteed to not 1230 * 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 1231 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1021 * the branching factor of the d-tree. 1232 * the branching factor of the d-tree.
1022 */ 1233 */
1023 1234
1024/* 1235/*
… …
1172 1383
1173static ANSIG signals [EV_NSIG - 1]; 1384static ANSIG signals [EV_NSIG - 1];
1174 1385
1175/*****************************************************************************/ 1386/*****************************************************************************/
1176 1387
1177/* used to prepare libev internal fd's */ 1388#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 1389
1191static void noinline 1390static void noinline ecb_cold
1192evpipe_init (EV_P) 1391evpipe_init (EV_P)
1193{ 1392{
1194 if (!ev_is_active (&pipe_w)) 1393 if (!ev_is_active (&pipe_w))
1195 { 1394 {
1196#if EV_USE_EVENTFD 1395# if EV_USE_EVENTFD
1197 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1396 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1198 if (evfd < 0 && errno == EINVAL) 1397 if (evfd < 0 && errno == EINVAL)
1199 evfd = eventfd (0, 0); 1398 evfd = eventfd (0, 0);
1200 1399
1201 if (evfd >= 0) 1400 if (evfd >= 0)
… …
1203 evpipe [0] = -1; 1402 evpipe [0] = -1;
1204 fd_intern (evfd); /* doing it twice doesn't hurt */ 1403 fd_intern (evfd); /* doing it twice doesn't hurt */
1205 ev_io_set (&pipe_w, evfd, EV_READ); 1404 ev_io_set (&pipe_w, evfd, EV_READ);
1206 } 1405 }
1207 else 1406 else
1208#endif 1407# endif
1209 { 1408 {
1210 while (pipe (evpipe)) 1409 while (pipe (evpipe))
1211 ev_syserr ("(libev) error creating signal/async pipe"); 1410 ev_syserr ("(libev) error creating signal/async pipe");
1212 1411
1213 fd_intern (evpipe [0]); 1412 fd_intern (evpipe [0]);
… …
1223inline_size void 1422inline_size void
1224evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1423evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1225{ 1424{
1226 if (!*flag) 1425 if (!*flag)
1227 { 1426 {
1228 int old_errno = errno; /* save errno because write might clobber it */
1229
1230 *flag = 1; 1427 *flag = 1;
1231 1428
1429 pipe_write_skipped = 1;
1430
1431 if (pipe_write_wanted)
1432 {
1433 int old_errno = errno; /* save errno because write will clobber it */
1434 char dummy;
1435
1436 pipe_write_skipped = 0;
1437
1232#if EV_USE_EVENTFD 1438#if EV_USE_EVENTFD
1233 if (evfd >= 0) 1439 if (evfd >= 0)
1234 { 1440 {
1235 uint64_t counter = 1; 1441 uint64_t counter = 1;
1236 write (evfd, &counter, sizeof (uint64_t)); 1442 write (evfd, &counter, sizeof (uint64_t));
1443 }
1444 else
1445#endif
1446 {
1447 /* win32 people keep sending patches that change this write() to send() */
1448 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1449 /* so when you think this write should be a send instead, please find out */
1450 /* where your send() is from - it's definitely not the microsoft send, and */
1451 /* tell me. thank you. */
1452 write (evpipe [1], &dummy, 1);
1453 }
1454
1455 errno = old_errno;
1237 } 1456 }
1238 else
1239#endif
1240 write (evpipe [1], &old_errno, 1);
1241
1242 errno = old_errno;
1243 } 1457 }
1244} 1458}
1245 1459
1246/* called whenever the libev signal pipe */ 1460/* called whenever the libev signal pipe */
1247/* got some events (signal, async) */ 1461/* got some events (signal, async) */
1248static void 1462static void
1249pipecb (EV_P_ ev_io *iow, int revents) 1463pipecb (EV_P_ ev_io *iow, int revents)
1250{ 1464{
1251 int i; 1465 int i;
1252 1466
1467 if (revents & EV_READ)
1468 {
1253#if EV_USE_EVENTFD 1469#if EV_USE_EVENTFD
1254 if (evfd >= 0) 1470 if (evfd >= 0)
1255 { 1471 {
1256 uint64_t counter; 1472 uint64_t counter;
1257 read (evfd, &counter, sizeof (uint64_t)); 1473 read (evfd, &counter, sizeof (uint64_t));
1258 } 1474 }
1259 else 1475 else
1260#endif 1476#endif
1261 { 1477 {
1262 char dummy; 1478 char dummy;
1479 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1263 read (evpipe [0], &dummy, 1); 1480 read (evpipe [0], &dummy, 1);
1481 }
1264 } 1482 }
1265 1483
1484 pipe_write_skipped = 0;
1485
1486#if EV_SIGNAL_ENABLE
1266 if (sig_pending) 1487 if (sig_pending)
1267 { 1488 {
1268 sig_pending = 0; 1489 sig_pending = 0;
1269 1490
1270 for (i = EV_NSIG - 1; i--; ) 1491 for (i = EV_NSIG - 1; i--; )
1271 if (expect_false (signals [i].pending)) 1492 if (expect_false (signals [i].pending))
1272 ev_feed_signal_event (EV_A_ i + 1); 1493 ev_feed_signal_event (EV_A_ i + 1);
1273 } 1494 }
1495#endif
1274 1496
1275#if EV_ASYNC_ENABLE 1497#if EV_ASYNC_ENABLE
1276 if (async_pending) 1498 if (async_pending)
1277 { 1499 {
1278 async_pending = 0; 1500 async_pending = 0;
… …
1287#endif 1509#endif
1288} 1510}
1289 1511
1290/*****************************************************************************/ 1512/*****************************************************************************/
1291 1513
1514void
1515ev_feed_signal (int signum)
1516{
1517#if EV_MULTIPLICITY
1518 EV_P = signals [signum - 1].loop;
1519
1520 if (!EV_A)
1521 return;
1522#endif
1523
1524 evpipe_init (EV_A);
1525
1526 signals [signum - 1].pending = 1;
1527 evpipe_write (EV_A_ &sig_pending);
1528}
1529
1292static void 1530static void
1293ev_sighandler (int signum) 1531ev_sighandler (int signum)
1294{ 1532{
1295#if EV_MULTIPLICITY
1296 EV_P = signals [signum - 1].loop;
1297#endif
1298
1299#ifdef _WIN32 1533#ifdef _WIN32
1300 signal (signum, ev_sighandler); 1534 signal (signum, ev_sighandler);
1301#endif 1535#endif
1302 1536
1303 signals [signum - 1].pending = 1; 1537 ev_feed_signal (signum);
1304 evpipe_write (EV_A_ &sig_pending);
1305} 1538}
1306 1539
1307void noinline 1540void noinline
1308ev_feed_signal_event (EV_P_ int signum) 1541ev_feed_signal_event (EV_P_ int signum)
1309{ 1542{
… …
1346 break; 1579 break;
1347 } 1580 }
1348} 1581}
1349#endif 1582#endif
1350 1583
1584#endif
1585
1351/*****************************************************************************/ 1586/*****************************************************************************/
1352 1587
1588#if EV_CHILD_ENABLE
1353static WL childs [EV_PID_HASHSIZE]; 1589static WL childs [EV_PID_HASHSIZE];
1354
1355#ifndef _WIN32
1356 1590
1357static ev_signal childev; 1591static ev_signal childev;
1358 1592
1359#ifndef WIFCONTINUED 1593#ifndef WIFCONTINUED
1360# define WIFCONTINUED(status) 0 1594# define WIFCONTINUED(status) 0
… …
1365child_reap (EV_P_ int chain, int pid, int status) 1599child_reap (EV_P_ int chain, int pid, int status)
1366{ 1600{
1367 ev_child *w; 1601 ev_child *w;
1368 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1602 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1369 1603
1370 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1604 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1371 { 1605 {
1372 if ((w->pid == pid || !w->pid) 1606 if ((w->pid == pid || !w->pid)
1373 && (!traced || (w->flags & 1))) 1607 && (!traced || (w->flags & 1)))
1374 { 1608 {
1375 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1609 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 */ 1634 /* 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 */ 1635 /* 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); 1636 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1403 1637
1404 child_reap (EV_A_ pid, pid, status); 1638 child_reap (EV_A_ pid, pid, status);
1405 if (EV_PID_HASHSIZE > 1) 1639 if ((EV_PID_HASHSIZE) > 1)
1406 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1640 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1407} 1641}
1408 1642
1409#endif 1643#endif
1410 1644
1411/*****************************************************************************/ 1645/*****************************************************************************/
1412 1646
1647#if EV_USE_IOCP
1648# include "ev_iocp.c"
1649#endif
1413#if EV_USE_PORT 1650#if EV_USE_PORT
1414# include "ev_port.c" 1651# include "ev_port.c"
1415#endif 1652#endif
1416#if EV_USE_KQUEUE 1653#if EV_USE_KQUEUE
1417# include "ev_kqueue.c" 1654# include "ev_kqueue.c"
… …
1424#endif 1661#endif
1425#if EV_USE_SELECT 1662#if EV_USE_SELECT
1426# include "ev_select.c" 1663# include "ev_select.c"
1427#endif 1664#endif
1428 1665
1429int 1666int ecb_cold
1430ev_version_major (void) 1667ev_version_major (void)
1431{ 1668{
1432 return EV_VERSION_MAJOR; 1669 return EV_VERSION_MAJOR;
1433} 1670}
1434 1671
1435int 1672int ecb_cold
1436ev_version_minor (void) 1673ev_version_minor (void)
1437{ 1674{
1438 return EV_VERSION_MINOR; 1675 return EV_VERSION_MINOR;
1439} 1676}
1440 1677
1441/* return true if we are running with elevated privileges and should ignore env variables */ 1678/* return true if we are running with elevated privileges and should ignore env variables */
1442int inline_size 1679int inline_size ecb_cold
1443enable_secure (void) 1680enable_secure (void)
1444{ 1681{
1445#ifdef _WIN32 1682#ifdef _WIN32
1446 return 0; 1683 return 0;
1447#else 1684#else
1448 return getuid () != geteuid () 1685 return getuid () != geteuid ()
1449 || getgid () != getegid (); 1686 || getgid () != getegid ();
1450#endif 1687#endif
1451} 1688}
1452 1689
1453unsigned int 1690unsigned int ecb_cold
1454ev_supported_backends (void) 1691ev_supported_backends (void)
1455{ 1692{
1456 unsigned int flags = 0; 1693 unsigned int flags = 0;
1457 1694
1458 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1695 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1462 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1699 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1463 1700
1464 return flags; 1701 return flags;
1465} 1702}
1466 1703
1467unsigned int 1704unsigned int ecb_cold
1468ev_recommended_backends (void) 1705ev_recommended_backends (void)
1469{ 1706{
1470 unsigned int flags = ev_supported_backends (); 1707 unsigned int flags = ev_supported_backends ();
1471 1708
1472#ifndef __NetBSD__ 1709#ifndef __NetBSD__
… …
1477#ifdef __APPLE__ 1714#ifdef __APPLE__
1478 /* only select works correctly on that "unix-certified" platform */ 1715 /* only select works correctly on that "unix-certified" platform */
1479 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1716 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1480 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1717 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1481#endif 1718#endif
1719#ifdef __FreeBSD__
1720 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1721#endif
1482 1722
1483 return flags; 1723 return flags;
1484} 1724}
1485 1725
1486unsigned int 1726unsigned int ecb_cold
1487ev_embeddable_backends (void) 1727ev_embeddable_backends (void)
1488{ 1728{
1489 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1729 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1490 1730
1491 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1731 /* 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 */ 1732 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1493 flags &= ~EVBACKEND_EPOLL; 1733 flags &= ~EVBACKEND_EPOLL;
1494 1734
1495 return flags; 1735 return flags;
1496} 1736}
1497 1737
1498unsigned int 1738unsigned int
1499ev_backend (EV_P) 1739ev_backend (EV_P)
1500{ 1740{
1501 return backend; 1741 return backend;
1502} 1742}
1503 1743
1504#if EV_MINIMAL < 2 1744#if EV_FEATURE_API
1505unsigned int 1745unsigned int
1506ev_loop_count (EV_P) 1746ev_iteration (EV_P)
1507{ 1747{
1508 return loop_count; 1748 return loop_count;
1509} 1749}
1510 1750
1511unsigned int 1751unsigned int
1512ev_loop_depth (EV_P) 1752ev_depth (EV_P)
1513{ 1753{
1514 return loop_depth; 1754 return loop_depth;
1515} 1755}
1516 1756
1517void 1757void
… …
1536ev_userdata (EV_P) 1776ev_userdata (EV_P)
1537{ 1777{
1538 return userdata; 1778 return userdata;
1539} 1779}
1540 1780
1781void
1541void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 1782ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1542{ 1783{
1543 invoke_cb = invoke_pending_cb; 1784 invoke_cb = invoke_pending_cb;
1544} 1785}
1545 1786
1787void
1546void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 1788ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1547{ 1789{
1548 release_cb = release; 1790 release_cb = release;
1549 acquire_cb = acquire; 1791 acquire_cb = acquire;
1550} 1792}
1551#endif 1793#endif
1552 1794
1553/* initialise a loop structure, must be zero-initialised */ 1795/* initialise a loop structure, must be zero-initialised */
1554static void noinline 1796static void noinline ecb_cold
1555loop_init (EV_P_ unsigned int flags) 1797loop_init (EV_P_ unsigned int flags)
1556{ 1798{
1557 if (!backend) 1799 if (!backend)
1558 { 1800 {
1801 origflags = flags;
1802
1559#if EV_USE_REALTIME 1803#if EV_USE_REALTIME
1560 if (!have_realtime) 1804 if (!have_realtime)
1561 { 1805 {
1562 struct timespec ts; 1806 struct timespec ts;
1563 1807
… …
1585 if (!(flags & EVFLAG_NOENV) 1829 if (!(flags & EVFLAG_NOENV)
1586 && !enable_secure () 1830 && !enable_secure ()
1587 && getenv ("LIBEV_FLAGS")) 1831 && getenv ("LIBEV_FLAGS"))
1588 flags = atoi (getenv ("LIBEV_FLAGS")); 1832 flags = atoi (getenv ("LIBEV_FLAGS"));
1589 1833
1590 ev_rt_now = ev_time (); 1834 ev_rt_now = ev_time ();
1591 mn_now = get_clock (); 1835 mn_now = get_clock ();
1592 now_floor = mn_now; 1836 now_floor = mn_now;
1593 rtmn_diff = ev_rt_now - mn_now; 1837 rtmn_diff = ev_rt_now - mn_now;
1594#if EV_MINIMAL < 2 1838#if EV_FEATURE_API
1595 invoke_cb = ev_invoke_pending; 1839 invoke_cb = ev_invoke_pending;
1596#endif 1840#endif
1597 1841
1598 io_blocktime = 0.; 1842 io_blocktime = 0.;
1599 timeout_blocktime = 0.; 1843 timeout_blocktime = 0.;
1600 backend = 0; 1844 backend = 0;
1601 backend_fd = -1; 1845 backend_fd = -1;
1602 sig_pending = 0; 1846 sig_pending = 0;
1603#if EV_ASYNC_ENABLE 1847#if EV_ASYNC_ENABLE
1604 async_pending = 0; 1848 async_pending = 0;
1605#endif 1849#endif
1850 pipe_write_skipped = 0;
1851 pipe_write_wanted = 0;
1606#if EV_USE_INOTIFY 1852#if EV_USE_INOTIFY
1607 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1853 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1608#endif 1854#endif
1609#if EV_USE_SIGNALFD 1855#if EV_USE_SIGNALFD
1610 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1856 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1611#endif 1857#endif
1612 1858
1613 if (!(flags & 0x0000ffffU)) 1859 if (!(flags & EVBACKEND_MASK))
1614 flags |= ev_recommended_backends (); 1860 flags |= ev_recommended_backends ();
1615 1861
1862#if EV_USE_IOCP
1863 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1864#endif
1616#if EV_USE_PORT 1865#if EV_USE_PORT
1617 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1866 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1618#endif 1867#endif
1619#if EV_USE_KQUEUE 1868#if EV_USE_KQUEUE
1620 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1869 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1629 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1878 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1630#endif 1879#endif
1631 1880
1632 ev_prepare_init (&pending_w, pendingcb); 1881 ev_prepare_init (&pending_w, pendingcb);
1633 1882
1883#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1634 ev_init (&pipe_w, pipecb); 1884 ev_init (&pipe_w, pipecb);
1635 ev_set_priority (&pipe_w, EV_MAXPRI); 1885 ev_set_priority (&pipe_w, EV_MAXPRI);
1886#endif
1636 } 1887 }
1637} 1888}
1638 1889
1639/* free up a loop structure */ 1890/* free up a loop structure */
1640static void noinline 1891void ecb_cold
1641loop_destroy (EV_P) 1892ev_loop_destroy (EV_P)
1642{ 1893{
1643 int i; 1894 int i;
1895
1896#if EV_MULTIPLICITY
1897 /* mimic free (0) */
1898 if (!EV_A)
1899 return;
1900#endif
1901
1902#if EV_CLEANUP_ENABLE
1903 /* queue cleanup watchers (and execute them) */
1904 if (expect_false (cleanupcnt))
1905 {
1906 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1907 EV_INVOKE_PENDING;
1908 }
1909#endif
1910
1911#if EV_CHILD_ENABLE
1912 if (ev_is_active (&childev))
1913 {
1914 ev_ref (EV_A); /* child watcher */
1915 ev_signal_stop (EV_A_ &childev);
1916 }
1917#endif
1644 1918
1645 if (ev_is_active (&pipe_w)) 1919 if (ev_is_active (&pipe_w))
1646 { 1920 {
1647 /*ev_ref (EV_A);*/ 1921 /*ev_ref (EV_A);*/
1648 /*ev_io_stop (EV_A_ &pipe_w);*/ 1922 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1670#endif 1944#endif
1671 1945
1672 if (backend_fd >= 0) 1946 if (backend_fd >= 0)
1673 close (backend_fd); 1947 close (backend_fd);
1674 1948
1949#if EV_USE_IOCP
1950 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1951#endif
1675#if EV_USE_PORT 1952#if EV_USE_PORT
1676 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1953 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1677#endif 1954#endif
1678#if EV_USE_KQUEUE 1955#if EV_USE_KQUEUE
1679 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1956 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1706 array_free (periodic, EMPTY); 1983 array_free (periodic, EMPTY);
1707#endif 1984#endif
1708#if EV_FORK_ENABLE 1985#if EV_FORK_ENABLE
1709 array_free (fork, EMPTY); 1986 array_free (fork, EMPTY);
1710#endif 1987#endif
1988#if EV_CLEANUP_ENABLE
1989 array_free (cleanup, EMPTY);
1990#endif
1711 array_free (prepare, EMPTY); 1991 array_free (prepare, EMPTY);
1712 array_free (check, EMPTY); 1992 array_free (check, EMPTY);
1713#if EV_ASYNC_ENABLE 1993#if EV_ASYNC_ENABLE
1714 array_free (async, EMPTY); 1994 array_free (async, EMPTY);
1715#endif 1995#endif
1716 1996
1717 backend = 0; 1997 backend = 0;
1998
1999#if EV_MULTIPLICITY
2000 if (ev_is_default_loop (EV_A))
2001#endif
2002 ev_default_loop_ptr = 0;
2003#if EV_MULTIPLICITY
2004 else
2005 ev_free (EV_A);
2006#endif
1718} 2007}
1719 2008
1720#if EV_USE_INOTIFY 2009#if EV_USE_INOTIFY
1721inline_size void infy_fork (EV_P); 2010inline_size void infy_fork (EV_P);
1722#endif 2011#endif
… …
1737 infy_fork (EV_A); 2026 infy_fork (EV_A);
1738#endif 2027#endif
1739 2028
1740 if (ev_is_active (&pipe_w)) 2029 if (ev_is_active (&pipe_w))
1741 { 2030 {
1742 /* this "locks" the handlers against writing to the pipe */ 2031 /* 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 2032
1749 ev_ref (EV_A); 2033 ev_ref (EV_A);
1750 ev_io_stop (EV_A_ &pipe_w); 2034 ev_io_stop (EV_A_ &pipe_w);
1751 2035
1752#if EV_USE_EVENTFD 2036#if EV_USE_EVENTFD
… …
1758 { 2042 {
1759 EV_WIN32_CLOSE_FD (evpipe [0]); 2043 EV_WIN32_CLOSE_FD (evpipe [0]);
1760 EV_WIN32_CLOSE_FD (evpipe [1]); 2044 EV_WIN32_CLOSE_FD (evpipe [1]);
1761 } 2045 }
1762 2046
2047#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1763 evpipe_init (EV_A); 2048 evpipe_init (EV_A);
1764 /* now iterate over everything, in case we missed something */ 2049 /* now iterate over everything, in case we missed something */
1765 pipecb (EV_A_ &pipe_w, EV_READ); 2050 pipecb (EV_A_ &pipe_w, EV_READ);
2051#endif
1766 } 2052 }
1767 2053
1768 postfork = 0; 2054 postfork = 0;
1769} 2055}
1770 2056
1771#if EV_MULTIPLICITY 2057#if EV_MULTIPLICITY
1772 2058
1773struct ev_loop * 2059struct ev_loop * ecb_cold
1774ev_loop_new (unsigned int flags) 2060ev_loop_new (unsigned int flags)
1775{ 2061{
1776 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2062 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1777 2063
1778 memset (EV_A, 0, sizeof (struct ev_loop)); 2064 memset (EV_A, 0, sizeof (struct ev_loop));
1779 loop_init (EV_A_ flags); 2065 loop_init (EV_A_ flags);
1780 2066
1781 if (ev_backend (EV_A)) 2067 if (ev_backend (EV_A))
1782 return EV_A; 2068 return EV_A;
1783 2069
2070 ev_free (EV_A);
1784 return 0; 2071 return 0;
1785} 2072}
1786 2073
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 */ 2074#endif /* multiplicity */
1800 2075
1801#if EV_VERIFY 2076#if EV_VERIFY
1802static void noinline 2077static void noinline ecb_cold
1803verify_watcher (EV_P_ W w) 2078verify_watcher (EV_P_ W w)
1804{ 2079{
1805 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2080 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1806 2081
1807 if (w->pending) 2082 if (w->pending)
1808 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2083 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1809} 2084}
1810 2085
1811static void noinline 2086static void noinline ecb_cold
1812verify_heap (EV_P_ ANHE *heap, int N) 2087verify_heap (EV_P_ ANHE *heap, int N)
1813{ 2088{
1814 int i; 2089 int i;
1815 2090
1816 for (i = HEAP0; i < N + HEAP0; ++i) 2091 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1821 2096
1822 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2097 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1823 } 2098 }
1824} 2099}
1825 2100
1826static void noinline 2101static void noinline ecb_cold
1827array_verify (EV_P_ W *ws, int cnt) 2102array_verify (EV_P_ W *ws, int cnt)
1828{ 2103{
1829 while (cnt--) 2104 while (cnt--)
1830 { 2105 {
1831 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2106 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1832 verify_watcher (EV_A_ ws [cnt]); 2107 verify_watcher (EV_A_ ws [cnt]);
1833 } 2108 }
1834} 2109}
1835#endif 2110#endif
1836 2111
1837#if EV_MINIMAL < 2 2112#if EV_FEATURE_API
1838void 2113void ecb_cold
1839ev_loop_verify (EV_P) 2114ev_verify (EV_P)
1840{ 2115{
1841#if EV_VERIFY 2116#if EV_VERIFY
1842 int i; 2117 int i;
1843 WL w; 2118 WL w;
1844 2119
… …
1878#if EV_FORK_ENABLE 2153#if EV_FORK_ENABLE
1879 assert (forkmax >= forkcnt); 2154 assert (forkmax >= forkcnt);
1880 array_verify (EV_A_ (W *)forks, forkcnt); 2155 array_verify (EV_A_ (W *)forks, forkcnt);
1881#endif 2156#endif
1882 2157
2158#if EV_CLEANUP_ENABLE
2159 assert (cleanupmax >= cleanupcnt);
2160 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2161#endif
2162
1883#if EV_ASYNC_ENABLE 2163#if EV_ASYNC_ENABLE
1884 assert (asyncmax >= asynccnt); 2164 assert (asyncmax >= asynccnt);
1885 array_verify (EV_A_ (W *)asyncs, asynccnt); 2165 array_verify (EV_A_ (W *)asyncs, asynccnt);
1886#endif 2166#endif
1887 2167
2168#if EV_PREPARE_ENABLE
1888 assert (preparemax >= preparecnt); 2169 assert (preparemax >= preparecnt);
1889 array_verify (EV_A_ (W *)prepares, preparecnt); 2170 array_verify (EV_A_ (W *)prepares, preparecnt);
2171#endif
1890 2172
2173#if EV_CHECK_ENABLE
1891 assert (checkmax >= checkcnt); 2174 assert (checkmax >= checkcnt);
1892 array_verify (EV_A_ (W *)checks, checkcnt); 2175 array_verify (EV_A_ (W *)checks, checkcnt);
2176#endif
1893 2177
1894# if 0 2178# if 0
2179#if EV_CHILD_ENABLE
1895 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2180 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) 2181 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2182#endif
1897# endif 2183# endif
1898#endif 2184#endif
1899} 2185}
1900#endif 2186#endif
1901 2187
1902#if EV_MULTIPLICITY 2188#if EV_MULTIPLICITY
1903struct ev_loop * 2189struct ev_loop * ecb_cold
1904ev_default_loop_init (unsigned int flags)
1905#else 2190#else
1906int 2191int
2192#endif
1907ev_default_loop (unsigned int flags) 2193ev_default_loop (unsigned int flags)
1908#endif
1909{ 2194{
1910 if (!ev_default_loop_ptr) 2195 if (!ev_default_loop_ptr)
1911 { 2196 {
1912#if EV_MULTIPLICITY 2197#if EV_MULTIPLICITY
1913 EV_P = ev_default_loop_ptr = &default_loop_struct; 2198 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1917 2202
1918 loop_init (EV_A_ flags); 2203 loop_init (EV_A_ flags);
1919 2204
1920 if (ev_backend (EV_A)) 2205 if (ev_backend (EV_A))
1921 { 2206 {
1922#ifndef _WIN32 2207#if EV_CHILD_ENABLE
1923 ev_signal_init (&childev, childcb, SIGCHLD); 2208 ev_signal_init (&childev, childcb, SIGCHLD);
1924 ev_set_priority (&childev, EV_MAXPRI); 2209 ev_set_priority (&childev, EV_MAXPRI);
1925 ev_signal_start (EV_A_ &childev); 2210 ev_signal_start (EV_A_ &childev);
1926 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2211 ev_unref (EV_A); /* child watcher should not keep loop alive */
1927#endif 2212#endif
… …
1932 2217
1933 return ev_default_loop_ptr; 2218 return ev_default_loop_ptr;
1934} 2219}
1935 2220
1936void 2221void
1937ev_default_destroy (void) 2222ev_loop_fork (EV_P)
1938{ 2223{
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 */ 2224 postfork = 1; /* must be in line with ev_default_fork */
1961} 2225}
1962 2226
1963/*****************************************************************************/ 2227/*****************************************************************************/
1964 2228
1965void 2229void
… …
1987 2251
1988 for (pri = NUMPRI; pri--; ) 2252 for (pri = NUMPRI; pri--; )
1989 while (pendingcnt [pri]) 2253 while (pendingcnt [pri])
1990 { 2254 {
1991 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2255 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 2256
1996 p->w->pending = 0; 2257 p->w->pending = 0;
1997 EV_CB_INVOKE (p->w, p->events); 2258 EV_CB_INVOKE (p->w, p->events);
1998 EV_FREQUENT_CHECK; 2259 EV_FREQUENT_CHECK;
1999 } 2260 }
… …
2056 EV_FREQUENT_CHECK; 2317 EV_FREQUENT_CHECK;
2057 feed_reverse (EV_A_ (W)w); 2318 feed_reverse (EV_A_ (W)w);
2058 } 2319 }
2059 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2320 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2060 2321
2061 feed_reverse_done (EV_A_ EV_TIMEOUT); 2322 feed_reverse_done (EV_A_ EV_TIMER);
2062 } 2323 }
2063} 2324}
2064 2325
2065#if EV_PERIODIC_ENABLE 2326#if EV_PERIODIC_ENABLE
2327
2328static void noinline
2329periodic_recalc (EV_P_ ev_periodic *w)
2330{
2331 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2332 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2333
2334 /* the above almost always errs on the low side */
2335 while (at <= ev_rt_now)
2336 {
2337 ev_tstamp nat = at + w->interval;
2338
2339 /* when resolution fails us, we use ev_rt_now */
2340 if (expect_false (nat == at))
2341 {
2342 at = ev_rt_now;
2343 break;
2344 }
2345
2346 at = nat;
2347 }
2348
2349 ev_at (w) = at;
2350}
2351
2066/* make periodics pending */ 2352/* make periodics pending */
2067inline_size void 2353inline_size void
2068periodics_reify (EV_P) 2354periodics_reify (EV_P)
2069{ 2355{
2070 EV_FREQUENT_CHECK; 2356 EV_FREQUENT_CHECK;
… …
2089 ANHE_at_cache (periodics [HEAP0]); 2375 ANHE_at_cache (periodics [HEAP0]);
2090 downheap (periodics, periodiccnt, HEAP0); 2376 downheap (periodics, periodiccnt, HEAP0);
2091 } 2377 }
2092 else if (w->interval) 2378 else if (w->interval)
2093 { 2379 {
2094 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2380 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]); 2381 ANHE_at_cache (periodics [HEAP0]);
2109 downheap (periodics, periodiccnt, HEAP0); 2382 downheap (periodics, periodiccnt, HEAP0);
2110 } 2383 }
2111 else 2384 else
2112 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2385 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2119 feed_reverse_done (EV_A_ EV_PERIODIC); 2392 feed_reverse_done (EV_A_ EV_PERIODIC);
2120 } 2393 }
2121} 2394}
2122 2395
2123/* simply recalculate all periodics */ 2396/* simply recalculate all periodics */
2124/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2397/* TODO: maybe ensure that at least one event happens when jumping forward? */
2125static void noinline 2398static void noinline ecb_cold
2126periodics_reschedule (EV_P) 2399periodics_reschedule (EV_P)
2127{ 2400{
2128 int i; 2401 int i;
2129 2402
2130 /* adjust periodics after time jump */ 2403 /* adjust periodics after time jump */
… …
2133 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2406 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2134 2407
2135 if (w->reschedule_cb) 2408 if (w->reschedule_cb)
2136 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2409 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2137 else if (w->interval) 2410 else if (w->interval)
2138 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2411 periodic_recalc (EV_A_ w);
2139 2412
2140 ANHE_at_cache (periodics [i]); 2413 ANHE_at_cache (periodics [i]);
2141 } 2414 }
2142 2415
2143 reheap (periodics, periodiccnt); 2416 reheap (periodics, periodiccnt);
2144} 2417}
2145#endif 2418#endif
2146 2419
2147/* adjust all timers by a given offset */ 2420/* adjust all timers by a given offset */
2148static void noinline 2421static void noinline ecb_cold
2149timers_reschedule (EV_P_ ev_tstamp adjust) 2422timers_reschedule (EV_P_ ev_tstamp adjust)
2150{ 2423{
2151 int i; 2424 int i;
2152 2425
2153 for (i = 0; i < timercnt; ++i) 2426 for (i = 0; i < timercnt; ++i)
… …
2157 ANHE_at_cache (*he); 2430 ANHE_at_cache (*he);
2158 } 2431 }
2159} 2432}
2160 2433
2161/* fetch new monotonic and realtime times from the kernel */ 2434/* fetch new monotonic and realtime times from the kernel */
2162/* also detetc if there was a timejump, and act accordingly */ 2435/* also detect if there was a timejump, and act accordingly */
2163inline_speed void 2436inline_speed void
2164time_update (EV_P_ ev_tstamp max_block) 2437time_update (EV_P_ ev_tstamp max_block)
2165{ 2438{
2166#if EV_USE_MONOTONIC 2439#if EV_USE_MONOTONIC
2167 if (expect_true (have_monotonic)) 2440 if (expect_true (have_monotonic))
… …
2190 * doesn't hurt either as we only do this on time-jumps or 2463 * doesn't hurt either as we only do this on time-jumps or
2191 * in the unlikely event of having been preempted here. 2464 * in the unlikely event of having been preempted here.
2192 */ 2465 */
2193 for (i = 4; --i; ) 2466 for (i = 4; --i; )
2194 { 2467 {
2468 ev_tstamp diff;
2195 rtmn_diff = ev_rt_now - mn_now; 2469 rtmn_diff = ev_rt_now - mn_now;
2196 2470
2471 diff = odiff - rtmn_diff;
2472
2197 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2473 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2198 return; /* all is well */ 2474 return; /* all is well */
2199 2475
2200 ev_rt_now = ev_time (); 2476 ev_rt_now = ev_time ();
2201 mn_now = get_clock (); 2477 mn_now = get_clock ();
2202 now_floor = mn_now; 2478 now_floor = mn_now;
… …
2225 mn_now = ev_rt_now; 2501 mn_now = ev_rt_now;
2226 } 2502 }
2227} 2503}
2228 2504
2229void 2505void
2230ev_loop (EV_P_ int flags) 2506ev_run (EV_P_ int flags)
2231{ 2507{
2232#if EV_MINIMAL < 2 2508#if EV_FEATURE_API
2233 ++loop_depth; 2509 ++loop_depth;
2234#endif 2510#endif
2235 2511
2236 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2512 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2237 2513
2238 loop_done = EVUNLOOP_CANCEL; 2514 loop_done = EVBREAK_CANCEL;
2239 2515
2240 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2516 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2241 2517
2242 do 2518 do
2243 { 2519 {
2244#if EV_VERIFY >= 2 2520#if EV_VERIFY >= 2
2245 ev_loop_verify (EV_A); 2521 ev_verify (EV_A);
2246#endif 2522#endif
2247 2523
2248#ifndef _WIN32 2524#ifndef _WIN32
2249 if (expect_false (curpid)) /* penalise the forking check even more */ 2525 if (expect_false (curpid)) /* penalise the forking check even more */
2250 if (expect_false (getpid () != curpid)) 2526 if (expect_false (getpid () != curpid))
… …
2262 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2538 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2263 EV_INVOKE_PENDING; 2539 EV_INVOKE_PENDING;
2264 } 2540 }
2265#endif 2541#endif
2266 2542
2543#if EV_PREPARE_ENABLE
2267 /* queue prepare watchers (and execute them) */ 2544 /* queue prepare watchers (and execute them) */
2268 if (expect_false (preparecnt)) 2545 if (expect_false (preparecnt))
2269 { 2546 {
2270 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2547 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2271 EV_INVOKE_PENDING; 2548 EV_INVOKE_PENDING;
2272 } 2549 }
2550#endif
2273 2551
2274 if (expect_false (loop_done)) 2552 if (expect_false (loop_done))
2275 break; 2553 break;
2276 2554
2277 /* we might have forked, so reify kernel state if necessary */ 2555 /* we might have forked, so reify kernel state if necessary */
… …
2284 /* calculate blocking time */ 2562 /* calculate blocking time */
2285 { 2563 {
2286 ev_tstamp waittime = 0.; 2564 ev_tstamp waittime = 0.;
2287 ev_tstamp sleeptime = 0.; 2565 ev_tstamp sleeptime = 0.;
2288 2566
2567 /* remember old timestamp for io_blocktime calculation */
2568 ev_tstamp prev_mn_now = mn_now;
2569
2570 /* update time to cancel out callback processing overhead */
2571 time_update (EV_A_ 1e100);
2572
2573 /* from now on, we want a pipe-wake-up */
2574 pipe_write_wanted = 1;
2575
2289 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2576 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2290 { 2577 {
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; 2578 waittime = MAX_BLOCKTIME;
2298 2579
2299 if (timercnt) 2580 if (timercnt)
2300 { 2581 {
2301 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2582 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2302 if (waittime > to) waittime = to; 2583 if (waittime > to) waittime = to;
2303 } 2584 }
2304 2585
2305#if EV_PERIODIC_ENABLE 2586#if EV_PERIODIC_ENABLE
2306 if (periodiccnt) 2587 if (periodiccnt)
2307 { 2588 {
2308 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2589 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2309 if (waittime > to) waittime = to; 2590 if (waittime > to) waittime = to;
2310 } 2591 }
2311#endif 2592#endif
2312 2593
2313 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2594 /* don't let timeouts decrease the waittime below timeout_blocktime */
2314 if (expect_false (waittime < timeout_blocktime)) 2595 if (expect_false (waittime < timeout_blocktime))
2315 waittime = timeout_blocktime; 2596 waittime = timeout_blocktime;
2597
2598 /* at this point, we NEED to wait, so we have to ensure */
2599 /* to pass a minimum nonzero value to the backend */
2600 if (expect_false (waittime < backend_mintime))
2601 waittime = backend_mintime;
2316 2602
2317 /* extra check because io_blocktime is commonly 0 */ 2603 /* extra check because io_blocktime is commonly 0 */
2318 if (expect_false (io_blocktime)) 2604 if (expect_false (io_blocktime))
2319 { 2605 {
2320 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2606 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2321 2607
2322 if (sleeptime > waittime - backend_fudge) 2608 if (sleeptime > waittime - backend_mintime)
2323 sleeptime = waittime - backend_fudge; 2609 sleeptime = waittime - backend_mintime;
2324 2610
2325 if (expect_true (sleeptime > 0.)) 2611 if (expect_true (sleeptime > 0.))
2326 { 2612 {
2327 ev_sleep (sleeptime); 2613 ev_sleep (sleeptime);
2328 waittime -= sleeptime; 2614 waittime -= sleeptime;
2329 } 2615 }
2330 } 2616 }
2331 } 2617 }
2332 2618
2333#if EV_MINIMAL < 2 2619#if EV_FEATURE_API
2334 ++loop_count; 2620 ++loop_count;
2335#endif 2621#endif
2336 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2622 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2337 backend_poll (EV_A_ waittime); 2623 backend_poll (EV_A_ waittime);
2338 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2624 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2625
2626 pipe_write_wanted = 0;
2627
2628 if (pipe_write_skipped)
2629 {
2630 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2631 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2632 }
2633
2339 2634
2340 /* update ev_rt_now, do magic */ 2635 /* update ev_rt_now, do magic */
2341 time_update (EV_A_ waittime + sleeptime); 2636 time_update (EV_A_ waittime + sleeptime);
2342 } 2637 }
2343 2638
… …
2350#if EV_IDLE_ENABLE 2645#if EV_IDLE_ENABLE
2351 /* queue idle watchers unless other events are pending */ 2646 /* queue idle watchers unless other events are pending */
2352 idle_reify (EV_A); 2647 idle_reify (EV_A);
2353#endif 2648#endif
2354 2649
2650#if EV_CHECK_ENABLE
2355 /* queue check watchers, to be executed first */ 2651 /* queue check watchers, to be executed first */
2356 if (expect_false (checkcnt)) 2652 if (expect_false (checkcnt))
2357 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2653 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2654#endif
2358 2655
2359 EV_INVOKE_PENDING; 2656 EV_INVOKE_PENDING;
2360 } 2657 }
2361 while (expect_true ( 2658 while (expect_true (
2362 activecnt 2659 activecnt
2363 && !loop_done 2660 && !loop_done
2364 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2661 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2365 )); 2662 ));
2366 2663
2367 if (loop_done == EVUNLOOP_ONE) 2664 if (loop_done == EVBREAK_ONE)
2368 loop_done = EVUNLOOP_CANCEL; 2665 loop_done = EVBREAK_CANCEL;
2369 2666
2370#if EV_MINIMAL < 2 2667#if EV_FEATURE_API
2371 --loop_depth; 2668 --loop_depth;
2372#endif 2669#endif
2373} 2670}
2374 2671
2375void 2672void
2376ev_unloop (EV_P_ int how) 2673ev_break (EV_P_ int how)
2377{ 2674{
2378 loop_done = how; 2675 loop_done = how;
2379} 2676}
2380 2677
2381void 2678void
… …
2501 2798
2502 if (expect_false (ev_is_active (w))) 2799 if (expect_false (ev_is_active (w)))
2503 return; 2800 return;
2504 2801
2505 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2802 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)))); 2803 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2507 2804
2508 EV_FREQUENT_CHECK; 2805 EV_FREQUENT_CHECK;
2509 2806
2510 ev_start (EV_A_ (W)w, 1); 2807 ev_start (EV_A_ (W)w, 1);
2511 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2808 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2529 EV_FREQUENT_CHECK; 2826 EV_FREQUENT_CHECK;
2530 2827
2531 wlist_del (&anfds[w->fd].head, (WL)w); 2828 wlist_del (&anfds[w->fd].head, (WL)w);
2532 ev_stop (EV_A_ (W)w); 2829 ev_stop (EV_A_ (W)w);
2533 2830
2534 fd_change (EV_A_ w->fd, 1); 2831 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2535 2832
2536 EV_FREQUENT_CHECK; 2833 EV_FREQUENT_CHECK;
2537} 2834}
2538 2835
2539void noinline 2836void noinline
… …
2581 timers [active] = timers [timercnt + HEAP0]; 2878 timers [active] = timers [timercnt + HEAP0];
2582 adjustheap (timers, timercnt, active); 2879 adjustheap (timers, timercnt, active);
2583 } 2880 }
2584 } 2881 }
2585 2882
2586 EV_FREQUENT_CHECK;
2587
2588 ev_at (w) -= mn_now; 2883 ev_at (w) -= mn_now;
2589 2884
2590 ev_stop (EV_A_ (W)w); 2885 ev_stop (EV_A_ (W)w);
2886
2887 EV_FREQUENT_CHECK;
2591} 2888}
2592 2889
2593void noinline 2890void noinline
2594ev_timer_again (EV_P_ ev_timer *w) 2891ev_timer_again (EV_P_ ev_timer *w)
2595{ 2892{
… …
2631 if (w->reschedule_cb) 2928 if (w->reschedule_cb)
2632 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2929 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2633 else if (w->interval) 2930 else if (w->interval)
2634 { 2931 {
2635 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2932 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 */ 2933 periodic_recalc (EV_A_ w);
2637 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2638 } 2934 }
2639 else 2935 else
2640 ev_at (w) = w->offset; 2936 ev_at (w) = w->offset;
2641 2937
2642 EV_FREQUENT_CHECK; 2938 EV_FREQUENT_CHECK;
… …
2674 periodics [active] = periodics [periodiccnt + HEAP0]; 2970 periodics [active] = periodics [periodiccnt + HEAP0];
2675 adjustheap (periodics, periodiccnt, active); 2971 adjustheap (periodics, periodiccnt, active);
2676 } 2972 }
2677 } 2973 }
2678 2974
2679 EV_FREQUENT_CHECK;
2680
2681 ev_stop (EV_A_ (W)w); 2975 ev_stop (EV_A_ (W)w);
2976
2977 EV_FREQUENT_CHECK;
2682} 2978}
2683 2979
2684void noinline 2980void noinline
2685ev_periodic_again (EV_P_ ev_periodic *w) 2981ev_periodic_again (EV_P_ ev_periodic *w)
2686{ 2982{
… …
2691#endif 2987#endif
2692 2988
2693#ifndef SA_RESTART 2989#ifndef SA_RESTART
2694# define SA_RESTART 0 2990# define SA_RESTART 0
2695#endif 2991#endif
2992
2993#if EV_SIGNAL_ENABLE
2696 2994
2697void noinline 2995void noinline
2698ev_signal_start (EV_P_ ev_signal *w) 2996ev_signal_start (EV_P_ ev_signal *w)
2699{ 2997{
2700 if (expect_false (ev_is_active (w))) 2998 if (expect_false (ev_is_active (w)))
… …
2761 sa.sa_handler = ev_sighandler; 3059 sa.sa_handler = ev_sighandler;
2762 sigfillset (&sa.sa_mask); 3060 sigfillset (&sa.sa_mask);
2763 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3061 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2764 sigaction (w->signum, &sa, 0); 3062 sigaction (w->signum, &sa, 0);
2765 3063
3064 if (origflags & EVFLAG_NOSIGMASK)
3065 {
2766 sigemptyset (&sa.sa_mask); 3066 sigemptyset (&sa.sa_mask);
2767 sigaddset (&sa.sa_mask, w->signum); 3067 sigaddset (&sa.sa_mask, w->signum);
2768 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3068 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3069 }
2769#endif 3070#endif
2770 } 3071 }
2771 3072
2772 EV_FREQUENT_CHECK; 3073 EV_FREQUENT_CHECK;
2773} 3074}
… …
2807 } 3108 }
2808 3109
2809 EV_FREQUENT_CHECK; 3110 EV_FREQUENT_CHECK;
2810} 3111}
2811 3112
3113#endif
3114
3115#if EV_CHILD_ENABLE
3116
2812void 3117void
2813ev_child_start (EV_P_ ev_child *w) 3118ev_child_start (EV_P_ ev_child *w)
2814{ 3119{
2815#if EV_MULTIPLICITY 3120#if EV_MULTIPLICITY
2816 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3121 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2819 return; 3124 return;
2820 3125
2821 EV_FREQUENT_CHECK; 3126 EV_FREQUENT_CHECK;
2822 3127
2823 ev_start (EV_A_ (W)w, 1); 3128 ev_start (EV_A_ (W)w, 1);
2824 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3129 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2825 3130
2826 EV_FREQUENT_CHECK; 3131 EV_FREQUENT_CHECK;
2827} 3132}
2828 3133
2829void 3134void
… …
2833 if (expect_false (!ev_is_active (w))) 3138 if (expect_false (!ev_is_active (w)))
2834 return; 3139 return;
2835 3140
2836 EV_FREQUENT_CHECK; 3141 EV_FREQUENT_CHECK;
2837 3142
2838 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3143 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2839 ev_stop (EV_A_ (W)w); 3144 ev_stop (EV_A_ (W)w);
2840 3145
2841 EV_FREQUENT_CHECK; 3146 EV_FREQUENT_CHECK;
2842} 3147}
3148
3149#endif
2843 3150
2844#if EV_STAT_ENABLE 3151#if EV_STAT_ENABLE
2845 3152
2846# ifdef _WIN32 3153# ifdef _WIN32
2847# undef lstat 3154# undef lstat
… …
2853#define MIN_STAT_INTERVAL 0.1074891 3160#define MIN_STAT_INTERVAL 0.1074891
2854 3161
2855static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3162static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2856 3163
2857#if EV_USE_INOTIFY 3164#if EV_USE_INOTIFY
2858# define EV_INOTIFY_BUFSIZE 8192 3165
3166/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3167# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2859 3168
2860static void noinline 3169static void noinline
2861infy_add (EV_P_ ev_stat *w) 3170infy_add (EV_P_ ev_stat *w)
2862{ 3171{
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); 3172 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) 3215 if (!pend || pend == path)
2907 break; 3216 break;
2908 3217
2909 *pend = 0; 3218 *pend = 0;
2910 w->wd = inotify_add_watch (fs_fd, path, mask); 3219 w->wd = inotify_add_watch (fs_fd, path, mask);
2911 } 3220 }
2912 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3221 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2913 } 3222 }
2914 } 3223 }
2915 3224
2916 if (w->wd >= 0) 3225 if (w->wd >= 0)
2917 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3226 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2918 3227
2919 /* now re-arm timer, if required */ 3228 /* now re-arm timer, if required */
2920 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3229 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2921 ev_timer_again (EV_A_ &w->timer); 3230 ev_timer_again (EV_A_ &w->timer);
2922 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3231 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2930 3239
2931 if (wd < 0) 3240 if (wd < 0)
2932 return; 3241 return;
2933 3242
2934 w->wd = -2; 3243 w->wd = -2;
2935 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3244 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2936 wlist_del (&fs_hash [slot].head, (WL)w); 3245 wlist_del (&fs_hash [slot].head, (WL)w);
2937 3246
2938 /* remove this watcher, if others are watching it, they will rearm */ 3247 /* remove this watcher, if others are watching it, they will rearm */
2939 inotify_rm_watch (fs_fd, wd); 3248 inotify_rm_watch (fs_fd, wd);
2940} 3249}
… …
2942static void noinline 3251static void noinline
2943infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3252infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2944{ 3253{
2945 if (slot < 0) 3254 if (slot < 0)
2946 /* overflow, need to check for all hash slots */ 3255 /* overflow, need to check for all hash slots */
2947 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3256 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2948 infy_wd (EV_A_ slot, wd, ev); 3257 infy_wd (EV_A_ slot, wd, ev);
2949 else 3258 else
2950 { 3259 {
2951 WL w_; 3260 WL w_;
2952 3261
2953 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3262 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2954 { 3263 {
2955 ev_stat *w = (ev_stat *)w_; 3264 ev_stat *w = (ev_stat *)w_;
2956 w_ = w_->next; /* lets us remove this watcher and all before it */ 3265 w_ = w_->next; /* lets us remove this watcher and all before it */
2957 3266
2958 if (w->wd == wd || wd == -1) 3267 if (w->wd == wd || wd == -1)
2959 { 3268 {
2960 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3269 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2961 { 3270 {
2962 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3271 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2963 w->wd = -1; 3272 w->wd = -1;
2964 infy_add (EV_A_ w); /* re-add, no matter what */ 3273 infy_add (EV_A_ w); /* re-add, no matter what */
2965 } 3274 }
2966 3275
2967 stat_timer_cb (EV_A_ &w->timer, 0); 3276 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2972 3281
2973static void 3282static void
2974infy_cb (EV_P_ ev_io *w, int revents) 3283infy_cb (EV_P_ ev_io *w, int revents)
2975{ 3284{
2976 char buf [EV_INOTIFY_BUFSIZE]; 3285 char buf [EV_INOTIFY_BUFSIZE];
2977 struct inotify_event *ev = (struct inotify_event *)buf;
2978 int ofs; 3286 int ofs;
2979 int len = read (fs_fd, buf, sizeof (buf)); 3287 int len = read (fs_fd, buf, sizeof (buf));
2980 3288
2981 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3289 for (ofs = 0; ofs < len; )
3290 {
3291 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2982 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3292 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3293 ofs += sizeof (struct inotify_event) + ev->len;
3294 }
2983} 3295}
2984 3296
2985inline_size void 3297inline_size void ecb_cold
2986check_2625 (EV_P) 3298ev_check_2625 (EV_P)
2987{ 3299{
2988 /* kernels < 2.6.25 are borked 3300 /* kernels < 2.6.25 are borked
2989 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3301 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2990 */ 3302 */
2991 struct utsname buf; 3303 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; 3304 return;
3004 3305
3005 fs_2625 = 1; 3306 fs_2625 = 1;
3006} 3307}
3007 3308
… …
3022 if (fs_fd != -2) 3323 if (fs_fd != -2)
3023 return; 3324 return;
3024 3325
3025 fs_fd = -1; 3326 fs_fd = -1;
3026 3327
3027 check_2625 (EV_A); 3328 ev_check_2625 (EV_A);
3028 3329
3029 fs_fd = infy_newfd (); 3330 fs_fd = infy_newfd ();
3030 3331
3031 if (fs_fd >= 0) 3332 if (fs_fd >= 0)
3032 { 3333 {
… …
3057 ev_io_set (&fs_w, fs_fd, EV_READ); 3358 ev_io_set (&fs_w, fs_fd, EV_READ);
3058 ev_io_start (EV_A_ &fs_w); 3359 ev_io_start (EV_A_ &fs_w);
3059 ev_unref (EV_A); 3360 ev_unref (EV_A);
3060 } 3361 }
3061 3362
3062 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3363 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3063 { 3364 {
3064 WL w_ = fs_hash [slot].head; 3365 WL w_ = fs_hash [slot].head;
3065 fs_hash [slot].head = 0; 3366 fs_hash [slot].head = 0;
3066 3367
3067 while (w_) 3368 while (w_)
… …
3242 3543
3243 EV_FREQUENT_CHECK; 3544 EV_FREQUENT_CHECK;
3244} 3545}
3245#endif 3546#endif
3246 3547
3548#if EV_PREPARE_ENABLE
3247void 3549void
3248ev_prepare_start (EV_P_ ev_prepare *w) 3550ev_prepare_start (EV_P_ ev_prepare *w)
3249{ 3551{
3250 if (expect_false (ev_is_active (w))) 3552 if (expect_false (ev_is_active (w)))
3251 return; 3553 return;
… …
3277 3579
3278 ev_stop (EV_A_ (W)w); 3580 ev_stop (EV_A_ (W)w);
3279 3581
3280 EV_FREQUENT_CHECK; 3582 EV_FREQUENT_CHECK;
3281} 3583}
3584#endif
3282 3585
3586#if EV_CHECK_ENABLE
3283void 3587void
3284ev_check_start (EV_P_ ev_check *w) 3588ev_check_start (EV_P_ ev_check *w)
3285{ 3589{
3286 if (expect_false (ev_is_active (w))) 3590 if (expect_false (ev_is_active (w)))
3287 return; 3591 return;
… …
3313 3617
3314 ev_stop (EV_A_ (W)w); 3618 ev_stop (EV_A_ (W)w);
3315 3619
3316 EV_FREQUENT_CHECK; 3620 EV_FREQUENT_CHECK;
3317} 3621}
3622#endif
3318 3623
3319#if EV_EMBED_ENABLE 3624#if EV_EMBED_ENABLE
3320void noinline 3625void noinline
3321ev_embed_sweep (EV_P_ ev_embed *w) 3626ev_embed_sweep (EV_P_ ev_embed *w)
3322{ 3627{
3323 ev_loop (w->other, EVLOOP_NONBLOCK); 3628 ev_run (w->other, EVRUN_NOWAIT);
3324} 3629}
3325 3630
3326static void 3631static void
3327embed_io_cb (EV_P_ ev_io *io, int revents) 3632embed_io_cb (EV_P_ ev_io *io, int revents)
3328{ 3633{
3329 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3634 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3330 3635
3331 if (ev_cb (w)) 3636 if (ev_cb (w))
3332 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3637 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3333 else 3638 else
3334 ev_loop (w->other, EVLOOP_NONBLOCK); 3639 ev_run (w->other, EVRUN_NOWAIT);
3335} 3640}
3336 3641
3337static void 3642static void
3338embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3643embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3339{ 3644{
… …
3343 EV_P = w->other; 3648 EV_P = w->other;
3344 3649
3345 while (fdchangecnt) 3650 while (fdchangecnt)
3346 { 3651 {
3347 fd_reify (EV_A); 3652 fd_reify (EV_A);
3348 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3653 ev_run (EV_A_ EVRUN_NOWAIT);
3349 } 3654 }
3350 } 3655 }
3351} 3656}
3352 3657
3353static void 3658static void
… …
3359 3664
3360 { 3665 {
3361 EV_P = w->other; 3666 EV_P = w->other;
3362 3667
3363 ev_loop_fork (EV_A); 3668 ev_loop_fork (EV_A);
3364 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3669 ev_run (EV_A_ EVRUN_NOWAIT);
3365 } 3670 }
3366 3671
3367 ev_embed_start (EV_A_ w); 3672 ev_embed_start (EV_A_ w);
3368} 3673}
3369 3674
… …
3417 3722
3418 ev_io_stop (EV_A_ &w->io); 3723 ev_io_stop (EV_A_ &w->io);
3419 ev_prepare_stop (EV_A_ &w->prepare); 3724 ev_prepare_stop (EV_A_ &w->prepare);
3420 ev_fork_stop (EV_A_ &w->fork); 3725 ev_fork_stop (EV_A_ &w->fork);
3421 3726
3727 ev_stop (EV_A_ (W)w);
3728
3422 EV_FREQUENT_CHECK; 3729 EV_FREQUENT_CHECK;
3423} 3730}
3424#endif 3731#endif
3425 3732
3426#if EV_FORK_ENABLE 3733#if EV_FORK_ENABLE
… …
3459 3766
3460 EV_FREQUENT_CHECK; 3767 EV_FREQUENT_CHECK;
3461} 3768}
3462#endif 3769#endif
3463 3770
3771#if EV_CLEANUP_ENABLE
3772void
3773ev_cleanup_start (EV_P_ ev_cleanup *w)
3774{
3775 if (expect_false (ev_is_active (w)))
3776 return;
3777
3778 EV_FREQUENT_CHECK;
3779
3780 ev_start (EV_A_ (W)w, ++cleanupcnt);
3781 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3782 cleanups [cleanupcnt - 1] = w;
3783
3784 /* cleanup watchers should never keep a refcount on the loop */
3785 ev_unref (EV_A);
3786 EV_FREQUENT_CHECK;
3787}
3788
3789void
3790ev_cleanup_stop (EV_P_ ev_cleanup *w)
3791{
3792 clear_pending (EV_A_ (W)w);
3793 if (expect_false (!ev_is_active (w)))
3794 return;
3795
3796 EV_FREQUENT_CHECK;
3797 ev_ref (EV_A);
3798
3799 {
3800 int active = ev_active (w);
3801
3802 cleanups [active - 1] = cleanups [--cleanupcnt];
3803 ev_active (cleanups [active - 1]) = active;
3804 }
3805
3806 ev_stop (EV_A_ (W)w);
3807
3808 EV_FREQUENT_CHECK;
3809}
3810#endif
3811
3464#if EV_ASYNC_ENABLE 3812#if EV_ASYNC_ENABLE
3465void 3813void
3466ev_async_start (EV_P_ ev_async *w) 3814ev_async_start (EV_P_ ev_async *w)
3467{ 3815{
3468 if (expect_false (ev_is_active (w))) 3816 if (expect_false (ev_is_active (w)))
3469 return; 3817 return;
3818
3819 w->sent = 0;
3470 3820
3471 evpipe_init (EV_A); 3821 evpipe_init (EV_A);
3472 3822
3473 EV_FREQUENT_CHECK; 3823 EV_FREQUENT_CHECK;
3474 3824
… …
3552{ 3902{
3553 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3903 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3554 3904
3555 if (expect_false (!once)) 3905 if (expect_false (!once))
3556 { 3906 {
3557 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3907 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3558 return; 3908 return;
3559 } 3909 }
3560 3910
3561 once->cb = cb; 3911 once->cb = cb;
3562 once->arg = arg; 3912 once->arg = arg;
… …
3577} 3927}
3578 3928
3579/*****************************************************************************/ 3929/*****************************************************************************/
3580 3930
3581#if EV_WALK_ENABLE 3931#if EV_WALK_ENABLE
3582void 3932void ecb_cold
3583ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3933ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3584{ 3934{
3585 int i, j; 3935 int i, j;
3586 ev_watcher_list *wl, *wn; 3936 ev_watcher_list *wl, *wn;
3587 3937
… …
3649 if (types & EV_ASYNC) 3999 if (types & EV_ASYNC)
3650 for (i = asynccnt; i--; ) 4000 for (i = asynccnt; i--; )
3651 cb (EV_A_ EV_ASYNC, asyncs [i]); 4001 cb (EV_A_ EV_ASYNC, asyncs [i]);
3652#endif 4002#endif
3653 4003
4004#if EV_PREPARE_ENABLE
3654 if (types & EV_PREPARE) 4005 if (types & EV_PREPARE)
3655 for (i = preparecnt; i--; ) 4006 for (i = preparecnt; i--; )
3656#if EV_EMBED_ENABLE 4007# if EV_EMBED_ENABLE
3657 if (ev_cb (prepares [i]) != embed_prepare_cb) 4008 if (ev_cb (prepares [i]) != embed_prepare_cb)
3658#endif 4009# endif
3659 cb (EV_A_ EV_PREPARE, prepares [i]); 4010 cb (EV_A_ EV_PREPARE, prepares [i]);
4011#endif
3660 4012
4013#if EV_CHECK_ENABLE
3661 if (types & EV_CHECK) 4014 if (types & EV_CHECK)
3662 for (i = checkcnt; i--; ) 4015 for (i = checkcnt; i--; )
3663 cb (EV_A_ EV_CHECK, checks [i]); 4016 cb (EV_A_ EV_CHECK, checks [i]);
4017#endif
3664 4018
4019#if EV_SIGNAL_ENABLE
3665 if (types & EV_SIGNAL) 4020 if (types & EV_SIGNAL)
3666 for (i = 0; i < EV_NSIG - 1; ++i) 4021 for (i = 0; i < EV_NSIG - 1; ++i)
3667 for (wl = signals [i].head; wl; ) 4022 for (wl = signals [i].head; wl; )
3668 { 4023 {
3669 wn = wl->next; 4024 wn = wl->next;
3670 cb (EV_A_ EV_SIGNAL, wl); 4025 cb (EV_A_ EV_SIGNAL, wl);
3671 wl = wn; 4026 wl = wn;
3672 } 4027 }
4028#endif
3673 4029
4030#if EV_CHILD_ENABLE
3674 if (types & EV_CHILD) 4031 if (types & EV_CHILD)
3675 for (i = EV_PID_HASHSIZE; i--; ) 4032 for (i = (EV_PID_HASHSIZE); i--; )
3676 for (wl = childs [i]; wl; ) 4033 for (wl = childs [i]; wl; )
3677 { 4034 {
3678 wn = wl->next; 4035 wn = wl->next;
3679 cb (EV_A_ EV_CHILD, wl); 4036 cb (EV_A_ EV_CHILD, wl);
3680 wl = wn; 4037 wl = wn;
3681 } 4038 }
4039#endif
3682/* EV_STAT 0x00001000 /* stat data changed */ 4040/* EV_STAT 0x00001000 /* stat data changed */
3683/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4041/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3684} 4042}
3685#endif 4043#endif
3686 4044
3687#if EV_MULTIPLICITY 4045#if EV_MULTIPLICITY
3688 #include "ev_wrap.h" 4046 #include "ev_wrap.h"
3689#endif 4047#endif
3690 4048
3691#ifdef __cplusplus 4049EV_CPP(})
3692}
3693#endif
3694 4050

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